Merge branch 'master' into gfs2
diff --git a/Documentation/ABI/obsolete/devfs b/Documentation/ABI/removed/devfs similarity index 72% rename from Documentation/ABI/obsolete/devfs rename to Documentation/ABI/removed/devfs index b8b8739..8195c4e 100644 --- a/Documentation/ABI/obsolete/devfs +++ b/Documentation/ABI/removed/devfs
@@ -1,13 +1,12 @@ What: devfs -Date: July 2005 +Date: July 2005 (scheduled), finally removed in kernel v2.6.18 Contact: Greg Kroah-Hartman <gregkh@suse.de> Description: devfs has been unmaintained for a number of years, has unfixable races, contains a naming policy within the kernel that is against the LSB, and can be replaced by using udev. - The files fs/devfs/*, include/linux/devfs_fs*.h will be removed, + The files fs/devfs/*, include/linux/devfs_fs*.h were removed, along with the the assorted devfs function calls throughout the kernel tree. Users: -
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power new file mode 100644 index 0000000..d882f80 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-power
@@ -0,0 +1,88 @@ +What: /sys/power/ +Date: August 2006 +Contact: Rafael J. Wysocki <rjw@sisk.pl> +Description: + The /sys/power directory will contain files that will + provide a unified interface to the power management + subsystem. + +What: /sys/power/state +Date: August 2006 +Contact: Rafael J. Wysocki <rjw@sisk.pl> +Description: + The /sys/power/state file controls the system power state. + Reading from this file returns what states are supported, + which is hard-coded to 'standby' (Power-On Suspend), 'mem' + (Suspend-to-RAM), and 'disk' (Suspend-to-Disk). + + Writing to this file one of these strings causes the system to + transition into that state. Please see the file + Documentation/power/states.txt for a description of each of + these states. + +What: /sys/power/disk +Date: August 2006 +Contact: Rafael J. Wysocki <rjw@sisk.pl> +Description: + The /sys/power/disk file controls the operating mode of the + suspend-to-disk mechanism. Reading from this file returns + the name of the method by which the system will be put to + sleep on the next suspend. There are four methods supported: + 'firmware' - means that the memory image will be saved to disk + by some firmware, in which case we also assume that the + firmware will handle the system suspend. + 'platform' - the memory image will be saved by the kernel and + the system will be put to sleep by the platform driver (e.g. + ACPI or other PM registers). + 'shutdown' - the memory image will be saved by the kernel and + the system will be powered off. + 'reboot' - the memory image will be saved by the kernel and + the system will be rebooted. + + The suspend-to-disk method may be chosen by writing to this + file one of the accepted strings: + + 'firmware' + 'platform' + 'shutdown' + 'reboot' + + It will only change to 'firmware' or 'platform' if the system + supports that. + +What: /sys/power/image_size +Date: August 2006 +Contact: Rafael J. Wysocki <rjw@sisk.pl> +Description: + The /sys/power/image_size file controls the size of the image + created by the suspend-to-disk mechanism. It can be written a + string representing a non-negative integer that will be used + as an upper limit of the image size, in bytes. The kernel's + suspend-to-disk code will do its best to ensure the image size + will not exceed this number. However, if it turns out to be + impossible, the kernel will try to suspend anyway using the + smallest image possible. In particular, if "0" is written to + this file, the suspend image will be as small as possible. + + Reading from this file will display the current image size + limit, which is set to 500 MB by default. + +What: /sys/power/pm_trace +Date: August 2006 +Contact: Rafael J. Wysocki <rjw@sisk.pl> +Description: + The /sys/power/pm_trace file controls the code which saves the + last PM event point in the RTC across reboots, so that you can + debug a machine that just hangs during suspend (or more + commonly, during resume). Namely, the RTC is only used to save + the last PM event point if this file contains '1'. Initially + it contains '0' which may be changed to '1' by writing a + string representing a nonzero integer into it. + + To use this debugging feature you should attempt to suspend + the machine, then reboot it and run + + dmesg -s 1000000 | grep 'hash matches' + + CAUTION: Using it will cause your machine's real-time (CMOS) + clock to be set to a random invalid time after a resume.
diff --git a/Documentation/DocBook/usb.tmpl b/Documentation/DocBook/usb.tmpl index 320af25..3608472 100644 --- a/Documentation/DocBook/usb.tmpl +++ b/Documentation/DocBook/usb.tmpl
@@ -43,59 +43,52 @@ <para>A Universal Serial Bus (USB) is used to connect a host, such as a PC or workstation, to a number of peripheral - devices. USB uses a tree structure, with the host at the + devices. USB uses a tree structure, with the host as the root (the system's master), hubs as interior nodes, and - peripheral devices as leaves (and slaves). + peripherals as leaves (and slaves). Modern PCs support several such trees of USB devices, usually one USB 2.0 tree (480 Mbit/sec each) with a few USB 1.1 trees (12 Mbit/sec each) that are used when you connect a USB 1.1 device directly to the machine's "root hub". </para> - <para>That master/slave asymmetry was designed in part for - ease of use. It is not physically possible to assemble - (legal) USB cables incorrectly: all upstream "to-the-host" - connectors are the rectangular type, matching the sockets on - root hubs, and the downstream type are the squarish type - (or they are built in to the peripheral). - Software doesn't need to deal with distributed autoconfiguration - since the pre-designated master node manages all that. - At the electrical level, bus protocol overhead is reduced by - eliminating arbitration and moving scheduling into host software. + <para>That master/slave asymmetry was designed-in for a number of + reasons, one being ease of use. It is not physically possible to + assemble (legal) USB cables incorrectly: all upstream "to the host" + connectors are the rectangular type (matching the sockets on + root hubs), and all downstream connectors are the squarish type + (or they are built into the peripheral). + Also, the host software doesn't need to deal with distributed + auto-configuration since the pre-designated master node manages all that. + And finally, at the electrical level, bus protocol overhead is reduced by + eliminating arbitration and moving scheduling into the host software. </para> - <para>USB 1.0 was announced in January 1996, and was revised + <para>USB 1.0 was announced in January 1996 and was revised as USB 1.1 (with improvements in hub specification and support for interrupt-out transfers) in September 1998. - USB 2.0 was released in April 2000, including high speed - transfers and transaction translating hubs (used for USB 1.1 + USB 2.0 was released in April 2000, adding high-speed + transfers and transaction-translating hubs (used for USB 1.1 and 1.0 backward compatibility). </para> - <para>USB support was added to Linux early in the 2.2 kernel series - shortly before the 2.3 development forked off. Updates - from 2.3 were regularly folded back into 2.2 releases, bringing - new features such as <filename>/sbin/hotplug</filename> support, - more drivers, and more robustness. - The 2.5 kernel series continued such improvements, and also - worked on USB 2.0 support, - higher performance, - better consistency between host controller drivers, - API simplification (to make bugs less likely), - and providing internal "kerneldoc" documentation. + <para>Kernel developers added USB support to Linux early in the 2.2 kernel + series, shortly before 2.3 development forked. Updates from 2.3 were + regularly folded back into 2.2 releases, which improved reliability and + brought <filename>/sbin/hotplug</filename> support as well more drivers. + Such improvements were continued in the 2.5 kernel series, where they added + USB 2.0 support, improved performance, and made the host controller drivers + (HCDs) more consistent. They also simplified the API (to make bugs less + likely) and added internal "kerneldoc" documentation. </para> <para>Linux can run inside USB devices as well as on the hosts that control the devices. - Because the Linux 2.x USB support evolved to support mass market - platforms such as Apple Macintosh or PC-compatible systems, - it didn't address design concerns for those types of USB systems. - So it can't be used inside mass-market PDAs, or other peripherals. - USB device drivers running inside those Linux peripherals + But USB device drivers running inside those peripherals don't do the same things as the ones running inside hosts, - and so they've been given a different name: - they're called <emphasis>gadget drivers</emphasis>. - This document does not present gadget drivers. + so they've been given a different name: + <emphasis>gadget drivers</emphasis>. + This document does not cover gadget drivers. </para> </chapter> @@ -103,17 +96,14 @@ <chapter id="host"> <title>USB Host-Side API Model</title> - <para>Within the kernel, - host-side drivers for USB devices talk to the "usbcore" APIs. - There are two types of public "usbcore" APIs, targetted at two different - layers of USB driver. Those are - <emphasis>general purpose</emphasis> drivers, exposed through - driver frameworks such as block, character, or network devices; - and drivers that are <emphasis>part of the core</emphasis>, - which are involved in managing a USB bus. - Such core drivers include the <emphasis>hub</emphasis> driver, - which manages trees of USB devices, and several different kinds - of <emphasis>host controller driver (HCD)</emphasis>, + <para>Host-side drivers for USB devices talk to the "usbcore" APIs. + There are two. One is intended for + <emphasis>general-purpose</emphasis> drivers (exposed through + driver frameworks), and the other is for drivers that are + <emphasis>part of the core</emphasis>. + Such core drivers include the <emphasis>hub</emphasis> driver + (which manages trees of USB devices) and several different kinds + of <emphasis>host controller drivers</emphasis>, which control individual busses. </para> @@ -122,21 +112,21 @@ <itemizedlist> - <listitem><para>USB supports four kinds of data transfer - (control, bulk, interrupt, and isochronous). Two transfer - types use bandwidth as it's available (control and bulk), - while the other two types of transfer (interrupt and isochronous) + <listitem><para>USB supports four kinds of data transfers + (control, bulk, interrupt, and isochronous). Two of them (control + and bulk) use bandwidth as it's available, + while the other two (interrupt and isochronous) are scheduled to provide guaranteed bandwidth. </para></listitem> <listitem><para>The device description model includes one or more "configurations" per device, only one of which is active at a time. - Devices that are capable of high speed operation must also support - full speed configurations, along with a way to ask about the - "other speed" configurations that might be used. + Devices that are capable of high-speed operation must also support + full-speed configurations, along with a way to ask about the + "other speed" configurations which might be used. </para></listitem> - <listitem><para>Configurations have one or more "interface", each + <listitem><para>Configurations have one or more "interfaces", each of which may have "alternate settings". Interfaces may be standardized by USB "Class" specifications, or may be specific to a vendor or device.</para> @@ -162,7 +152,7 @@ </para></listitem> <listitem><para>The Linux USB API supports synchronous calls for - control and bulk messaging. + control and bulk messages. It also supports asynchnous calls for all kinds of data transfer, using request structures called "URBs" (USB Request Blocks). </para></listitem> @@ -463,14 +453,25 @@ file in your Linux kernel sources. </para> - <para>Otherwise the main use for this file from programs - is to poll() it to get notifications of usb devices - as they're plugged or unplugged. - To see what changed, you'd need to read the file and - compare "before" and "after" contents, scan the filesystem, - or see its hotplug event. - </para> + <para>This file, in combination with the poll() system call, can + also be used to detect when devices are added or removed: +<programlisting>int fd; +struct pollfd pfd; +fd = open("/proc/bus/usb/devices", O_RDONLY); +pfd = { fd, POLLIN, 0 }; +for (;;) { + /* The first time through, this call will return immediately. */ + poll(&pfd, 1, -1); + + /* To see what's changed, compare the file's previous and current + contents or scan the filesystem. (Scanning is more precise.) */ +}</programlisting> + Note that this behavior is intended to be used for informational + and debug purposes. It would be more appropriate to use programs + such as udev or HAL to initialize a device or start a user-mode + helper program, for instance. + </para> </sect1> <sect1>
diff --git a/Documentation/HOWTO b/Documentation/HOWTO index 915ae8c..1d65604 100644 --- a/Documentation/HOWTO +++ b/Documentation/HOWTO
@@ -358,7 +358,8 @@ quilt trees: - USB, PCI, Driver Core, and I2C, Greg Kroah-Hartman <gregkh@suse.de> kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/ - + - x86-64, partly i386, Andi Kleen <ak@suse.de> + ftp.firstfloor.org:/pub/ak/x86_64/quilt/ Bug Reporting -------------
diff --git a/Documentation/devices.txt b/Documentation/devices.txt index 66c725f..addc67b 100644 --- a/Documentation/devices.txt +++ b/Documentation/devices.txt
@@ -2543,6 +2543,9 @@ 64 = /dev/usb/rio500 Diamond Rio 500 65 = /dev/usb/usblcd USBLCD Interface (info@usblcd.de) 66 = /dev/usb/cpad0 Synaptics cPad (mouse/LCD) + 67 = /dev/usb/adutux0 1st Ontrak ADU device + ... + 76 = /dev/usb/adutux10 10th Ontrak ADU device 96 = /dev/usb/hiddev0 1st USB HID device ... 111 = /dev/usb/hiddev15 16th USB HID device
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 552507f..436697c 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt
@@ -6,6 +6,21 @@ --------------------------- +What: /sys/devices/.../power/state + dev->power.power_state + dpm_runtime_{suspend,resume)() +When: July 2007 +Why: Broken design for runtime control over driver power states, confusing + driver-internal runtime power management with: mechanisms to support + system-wide sleep state transitions; event codes that distinguish + different phases of swsusp "sleep" transitions; and userspace policy + inputs. This framework was never widely used, and most attempts to + use it were broken. Drivers should instead be exposing domain-specific + interfaces either to kernel or to userspace. +Who: Pavel Machek <pavel@suse.cz> + +--------------------------- + What: RAW driver (CONFIG_RAW_DRIVER) When: December 2005 Why: declared obsolete since kernel 2.6.3 @@ -55,6 +70,18 @@ --------------------------- +What: sys_sysctl +When: January 2007 +Why: The same information is available through /proc/sys and that is the + interface user space prefers to use. And there do not appear to be + any existing user in user space of sys_sysctl. The additional + maintenance overhead of keeping a set of binary names gets + in the way of doing a good job of maintaining this interface. + +Who: Eric Biederman <ebiederm@xmission.com> + +--------------------------- + What: PCMCIA control ioctl (needed for pcmcia-cs [cardmgr, cardctl]) When: November 2005 Files: drivers/pcmcia/: pcmcia_ioctl.c @@ -202,14 +229,6 @@ --------------------------- -What: Support for the MIPS EV96100 evaluation board -When: September 2006 -Why: Does no longer build since at least November 15, 2003, apparently - no userbase left. -Who: Ralf Baechle <ralf@linux-mips.org> - ---------------------------- - What: Support for the Momentum / PMC-Sierra Jaguar ATX evaluation board When: September 2006 Why: Does no longer build since quite some time, and was never popular, @@ -294,3 +313,24 @@ It is not clear if anyone is still using it. Who: Stephen Hemminger <shemminger@osdl.org> +--------------------------- + + +What: PHYSDEVPATH, PHYSDEVBUS, PHYSDEVDRIVER in the uevent environment +When: Oktober 2008 +Why: The stacking of class devices makes these values misleading and + inconsistent. + Class devices should not carry any of these properties, and bus + devices have SUBSYTEM and DRIVER as a replacement. +Who: Kay Sievers <kay.sievers@suse.de> + +--------------------------- + +What: i2c-isa +When: December 2006 +Why: i2c-isa is a non-sense and doesn't fit in the device driver + model. Drivers relying on it are better implemented as platform + drivers. +Who: Jean Delvare <khali@linux-fr.org> + +---------------------------
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index 99902ae6..7db71d6 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt
@@ -1124,11 +1124,15 @@ NMI switch that most IA32 servers have fires unknown NMI up, for example. If a system hangs up, try pressing the NMI switch. -[NOTE] - This function and oprofile share a NMI callback. Therefore this function - cannot be enabled when oprofile is activated. - And NMI watchdog will be disabled when the value in this file is set to - non-zero. +nmi_watchdog +------------ + +Enables/Disables the NMI watchdog on x86 systems. When the value is non-zero +the NMI watchdog is enabled and will continuously test all online cpus to +determine whether or not they are still functioning properly. + +Because the NMI watchdog shares registers with oprofile, by disabling the NMI +watchdog, oprofile may have more registers to utilize. 2.4 /proc/sys/vm - The virtual memory subsystem
diff --git a/Documentation/i2c/busses/i2c-viapro b/Documentation/i2c/busses/i2c-viapro index 1677566..2568034 100644 --- a/Documentation/i2c/busses/i2c-viapro +++ b/Documentation/i2c/busses/i2c-viapro
@@ -7,9 +7,12 @@ * VIA Technologies, Inc. VT82C686A/B Datasheet: Sometimes available at the VIA website - * VIA Technologies, Inc. VT8231, VT8233, VT8233A, VT8235, VT8237R + * VIA Technologies, Inc. VT8231, VT8233, VT8233A Datasheet: available on request from VIA + * VIA Technologies, Inc. VT8235, VT8237R, VT8237A, VT8251 + Datasheet: available on request and under NDA from VIA + Authors: Kyösti Mälkki <kmalkki@cc.hut.fi>, Mark D. Studebaker <mdsxyz123@yahoo.com>, @@ -39,6 +42,8 @@ device 1106:8235 (VT8231 function 4) device 1106:3177 (VT8235) device 1106:3227 (VT8237R) + device 1106:3337 (VT8237A) + device 1106:3287 (VT8251) If none of these show up, you should look in the BIOS for settings like enable ACPI / SMBus or even USB.
diff --git a/Documentation/i2c/i2c-stub b/Documentation/i2c/i2c-stub index d6dcb13..9cc081e 100644 --- a/Documentation/i2c/i2c-stub +++ b/Documentation/i2c/i2c-stub
@@ -6,9 +6,12 @@ types of SMBus commands: write quick, (r/w) byte, (r/w) byte data, and (r/w) word data. +You need to provide a chip address as a module parameter when loading +this driver, which will then only react to SMBus commands to this address. + No hardware is needed nor associated with this module. It will accept write -quick commands to all addresses; it will respond to the other commands (also -to all addresses) by reading from or writing to an array in memory. It will +quick commands to one address; it will respond to the other commands (also +to one address) by reading from or writing to an array in memory. It will also spam the kernel logs for every command it handles. A pointer register with auto-increment is implemented for all byte @@ -21,6 +24,11 @@ 3. load the target sensors chip driver module 4. observe its behavior in the kernel log +PARAMETERS: + +int chip_addr: + The SMBus address to emulate a chip at. + CAVEATS: There are independent arrays for byte/data and word/data commands. Depending @@ -33,6 +41,9 @@ chips) this module will not work well - although it could be extended to support that pretty easily. +Only one chip address is supported - although this module could be +extended to support more. + If you spam it hard enough, printk can be lossy. This module really wants something like relayfs.
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt index b7d6abb..e2cbd59 100644 --- a/Documentation/kbuild/makefiles.txt +++ b/Documentation/kbuild/makefiles.txt
@@ -421,6 +421,11 @@ The second argument is optional, and if supplied will be used if first argument is not supported. + as-instr + as-instr checks if the assembler reports a specific instruction + and then outputs either option1 or option2 + C escapes are supported in the test instruction + cc-option cc-option is used to check if $(CC) supports a given option, and not supported to use an optional second option.
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 71d05f4..5498324 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt
@@ -573,8 +573,6 @@ gscd= [HW,CD] Format: <io> - gt96100eth= [NET] MIPS GT96100 Advanced Communication Controller - gus= [HW,OSS] Format: <io>,<irq>,<dma>,<dma16> @@ -1240,7 +1238,11 @@ bootloader. This is currently used on IXP2000 systems where the bus has to be configured a certain way for adjunct CPUs. - + noearly [X86] Don't do any early type 1 scanning. + This might help on some broken boards which + machine check when some devices' config space + is read. But various workarounds are disabled + and some IOMMU drivers will not work. pcmv= [HW,PCMCIA] BadgePAD 4 pd. [PARIDE] @@ -1363,6 +1365,14 @@ reserve= [KNL,BUGS] Force the kernel to ignore some iomem area + reservetop= [IA-32] + Format: nn[KMG] + Reserves a hole at the top of the kernel virtual + address space. + + reset_devices [KNL] Force drivers to reset the underlying device + during initialization. + resume= [SWSUSP] Specify the partition device for software suspend
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt index afac780..dc942ea 100644 --- a/Documentation/networking/bonding.txt +++ b/Documentation/networking/bonding.txt
@@ -192,6 +192,17 @@ arp_interval Specifies the ARP link monitoring frequency in milliseconds. + + The ARP monitor works by periodically checking the slave + devices to determine whether they have sent or received + traffic recently (the precise criteria depends upon the + bonding mode, and the state of the slave). Regular traffic is + generated via ARP probes issued for the addresses specified by + the arp_ip_target option. + + This behavior can be modified by the arp_validate option, + below. + If ARP monitoring is used in an etherchannel compatible mode (modes 0 and 2), the switch should be configured in a mode that evenly distributes packets across all links. If the @@ -213,6 +224,54 @@ maximum number of targets that can be specified is 16. The default value is no IP addresses. +arp_validate + + Specifies whether or not ARP probes and replies should be + validated in the active-backup mode. This causes the ARP + monitor to examine the incoming ARP requests and replies, and + only consider a slave to be up if it is receiving the + appropriate ARP traffic. + + Possible values are: + + none or 0 + + No validation is performed. This is the default. + + active or 1 + + Validation is performed only for the active slave. + + backup or 2 + + Validation is performed only for backup slaves. + + all or 3 + + Validation is performed for all slaves. + + For the active slave, the validation checks ARP replies to + confirm that they were generated by an arp_ip_target. Since + backup slaves do not typically receive these replies, the + validation performed for backup slaves is on the ARP request + sent out via the active slave. It is possible that some + switch or network configurations may result in situations + wherein the backup slaves do not receive the ARP requests; in + such a situation, validation of backup slaves must be + disabled. + + This option is useful in network configurations in which + multiple bonding hosts are concurrently issuing ARPs to one or + more targets beyond a common switch. Should the link between + the switch and target fail (but not the switch itself), the + probe traffic generated by the multiple bonding instances will + fool the standard ARP monitor into considering the links as + still up. Use of the arp_validate option can resolve this, as + the ARP monitor will only consider ARP requests and replies + associated with its own instance of bonding. + + This option was added in bonding version 3.1.0. + downdelay Specifies the time, in milliseconds, to wait before disabling
diff --git a/Documentation/networking/dccp.txt b/Documentation/networking/dccp.txt index c45daab..74563b3 100644 --- a/Documentation/networking/dccp.txt +++ b/Documentation/networking/dccp.txt
@@ -1,7 +1,6 @@ DCCP protocol ============ -Last updated: 10 November 2005 Contents ======== @@ -42,8 +41,11 @@ DCCP_SOCKOPT_PACKET_SIZE is used for CCID3 to set default packet size for calculations. -DCCP_SOCKOPT_SERVICE sets the service. This is compulsory as per the -specification. If you don't set it you will get EPROTO. +DCCP_SOCKOPT_SERVICE sets the service. The specification mandates use of +service codes (RFC 4340, sec. 8.1.2); if this socket option is not set, +the socket will fall back to 0 (which means that no meaningful service code +is present). Connecting sockets set at most one service option; for +listening sockets, multiple service codes can be specified. Notes =====
diff --git a/Documentation/nommu-mmap.txt b/Documentation/nommu-mmap.txt index b88ebe4..7714f57 100644 --- a/Documentation/nommu-mmap.txt +++ b/Documentation/nommu-mmap.txt
@@ -116,6 +116,9 @@ (*) A list of all the mappings on the system is visible through /proc/maps in no-MMU mode. + (*) A list of all the mappings in use by a process is visible through + /proc/<pid>/maps in no-MMU mode. + (*) Supplying MAP_FIXED or a requesting a particular mapping address will result in an error. @@ -125,6 +128,49 @@ error will result if they don't. This is most likely to be encountered with character device files, pipes, fifos and sockets. + +========================== +INTERPROCESS SHARED MEMORY +========================== + +Both SYSV IPC SHM shared memory and POSIX shared memory is supported in NOMMU +mode. The former through the usual mechanism, the latter through files created +on ramfs or tmpfs mounts. + + +======= +FUTEXES +======= + +Futexes are supported in NOMMU mode if the arch supports them. An error will +be given if an address passed to the futex system call lies outside the +mappings made by a process or if the mapping in which the address lies does not +support futexes (such as an I/O chardev mapping). + + +============= +NO-MMU MREMAP +============= + +The mremap() function is partially supported. It may change the size of a +mapping, and may move it[*] if MREMAP_MAYMOVE is specified and if the new size +of the mapping exceeds the size of the slab object currently occupied by the +memory to which the mapping refers, or if a smaller slab object could be used. + +MREMAP_FIXED is not supported, though it is ignored if there's no change of +address and the object does not need to be moved. + +Shared mappings may not be moved. Shareable mappings may not be moved either, +even if they are not currently shared. + +The mremap() function must be given an exact match for base address and size of +a previously mapped object. It may not be used to create holes in existing +mappings, move parts of existing mappings or resize parts of mappings. It must +act on a complete mapping. + +[*] Not currently supported. + + ============================================ PROVIDING SHAREABLE CHARACTER DEVICE SUPPORT ============================================
diff --git a/Documentation/pcieaer-howto.txt b/Documentation/pcieaer-howto.txt new file mode 100644 index 0000000..16c2512 --- /dev/null +++ b/Documentation/pcieaer-howto.txt
@@ -0,0 +1,253 @@ + The PCI Express Advanced Error Reporting Driver Guide HOWTO + T. Long Nguyen <tom.l.nguyen@intel.com> + Yanmin Zhang <yanmin.zhang@intel.com> + 07/29/2006 + + +1. Overview + +1.1 About this guide + +This guide describes the basics of the PCI Express Advanced Error +Reporting (AER) driver and provides information on how to use it, as +well as how to enable the drivers of endpoint devices to conform with +PCI Express AER driver. + +1.2 Copyright © Intel Corporation 2006. + +1.3 What is the PCI Express AER Driver? + +PCI Express error signaling can occur on the PCI Express link itself +or on behalf of transactions initiated on the link. PCI Express +defines two error reporting paradigms: the baseline capability and +the Advanced Error Reporting capability. The baseline capability is +required of all PCI Express components providing a minimum defined +set of error reporting requirements. Advanced Error Reporting +capability is implemented with a PCI Express advanced error reporting +extended capability structure providing more robust error reporting. + +The PCI Express AER driver provides the infrastructure to support PCI +Express Advanced Error Reporting capability. The PCI Express AER +driver provides three basic functions: + +- Gathers the comprehensive error information if errors occurred. +- Reports error to the users. +- Performs error recovery actions. + +AER driver only attaches root ports which support PCI-Express AER +capability. + + +2. User Guide + +2.1 Include the PCI Express AER Root Driver into the Linux Kernel + +The PCI Express AER Root driver is a Root Port service driver attached +to the PCI Express Port Bus driver. If a user wants to use it, the driver +has to be compiled. Option CONFIG_PCIEAER supports this capability. It +depends on CONFIG_PCIEPORTBUS, so pls. set CONFIG_PCIEPORTBUS=y and +CONFIG_PCIEAER = y. + +2.2 Load PCI Express AER Root Driver +There is a case where a system has AER support in BIOS. Enabling the AER +Root driver and having AER support in BIOS may result unpredictable +behavior. To avoid this conflict, a successful load of the AER Root driver +requires ACPI _OSC support in the BIOS to allow the AER Root driver to +request for native control of AER. See the PCI FW 3.0 Specification for +details regarding OSC usage. Currently, lots of firmwares don't provide +_OSC support while they use PCI Express. To support such firmwares, +forceload, a parameter of type bool, could enable AER to continue to +be initiated although firmwares have no _OSC support. To enable the +walkaround, pls. add aerdriver.forceload=y to kernel boot parameter line +when booting kernel. Note that forceload=n by default. + +2.3 AER error output +When a PCI-E AER error is captured, an error message will be outputed to +console. If it's a correctable error, it is outputed as a warning. +Otherwise, it is printed as an error. So users could choose different +log level to filter out correctable error messages. + +Below shows an example. ++------ PCI-Express Device Error -----+ +Error Severity : Uncorrected (Fatal) +PCIE Bus Error type : Transaction Layer +Unsupported Request : First +Requester ID : 0500 +VendorID=8086h, DeviceID=0329h, Bus=05h, Device=00h, Function=00h +TLB Header: +04000001 00200a03 05010000 00050100 + +In the example, 'Requester ID' means the ID of the device who sends +the error message to root port. Pls. refer to pci express specs for +other fields. + + +3. Developer Guide + +To enable AER aware support requires a software driver to configure +the AER capability structure within its device and to provide callbacks. + +To support AER better, developers need understand how AER does work +firstly. + +PCI Express errors are classified into two types: correctable errors +and uncorrectable errors. This classification is based on the impacts +of those errors, which may result in degraded performance or function +failure. + +Correctable errors pose no impacts on the functionality of the +interface. The PCI Express protocol can recover without any software +intervention or any loss of data. These errors are detected and +corrected by hardware. Unlike correctable errors, uncorrectable +errors impact functionality of the interface. Uncorrectable errors +can cause a particular transaction or a particular PCI Express link +to be unreliable. Depending on those error conditions, uncorrectable +errors are further classified into non-fatal errors and fatal errors. +Non-fatal errors cause the particular transaction to be unreliable, +but the PCI Express link itself is fully functional. Fatal errors, on +the other hand, cause the link to be unreliable. + +When AER is enabled, a PCI Express device will automatically send an +error message to the PCIE root port above it when the device captures +an error. The Root Port, upon receiving an error reporting message, +internally processes and logs the error message in its PCI Express +capability structure. Error information being logged includes storing +the error reporting agent's requestor ID into the Error Source +Identification Registers and setting the error bits of the Root Error +Status Register accordingly. If AER error reporting is enabled in Root +Error Command Register, the Root Port generates an interrupt if an +error is detected. + +Note that the errors as described above are related to the PCI Express +hierarchy and links. These errors do not include any device specific +errors because device specific errors will still get sent directly to +the device driver. + +3.1 Configure the AER capability structure + +AER aware drivers of PCI Express component need change the device +control registers to enable AER. They also could change AER registers, +including mask and severity registers. Helper function +pci_enable_pcie_error_reporting could be used to enable AER. See +section 3.3. + +3.2. Provide callbacks + +3.2.1 callback reset_link to reset pci express link + +This callback is used to reset the pci express physical link when a +fatal error happens. The root port aer service driver provides a +default reset_link function, but different upstream ports might +have different specifications to reset pci express link, so all +upstream ports should provide their own reset_link functions. + +In struct pcie_port_service_driver, a new pointer, reset_link, is +added. + +pci_ers_result_t (*reset_link) (struct pci_dev *dev); + +Section 3.2.2.2 provides more detailed info on when to call +reset_link. + +3.2.2 PCI error-recovery callbacks + +The PCI Express AER Root driver uses error callbacks to coordinate +with downstream device drivers associated with a hierarchy in question +when performing error recovery actions. + +Data struct pci_driver has a pointer, err_handler, to point to +pci_error_handlers who consists of a couple of callback function +pointers. AER driver follows the rules defined in +pci-error-recovery.txt except pci express specific parts (e.g. +reset_link). Pls. refer to pci-error-recovery.txt for detailed +definitions of the callbacks. + +Below sections specify when to call the error callback functions. + +3.2.2.1 Correctable errors + +Correctable errors pose no impacts on the functionality of +the interface. The PCI Express protocol can recover without any +software intervention or any loss of data. These errors do not +require any recovery actions. The AER driver clears the device's +correctable error status register accordingly and logs these errors. + +3.2.2.2 Non-correctable (non-fatal and fatal) errors + +If an error message indicates a non-fatal error, performing link reset +at upstream is not required. The AER driver calls error_detected(dev, +pci_channel_io_normal) to all drivers associated within a hierarchy in +question. for example, +EndPoint<==>DownstreamPort B<==>UpstreamPort A<==>RootPort. +If Upstream port A captures an AER error, the hierarchy consists of +Downstream port B and EndPoint. + +A driver may return PCI_ERS_RESULT_CAN_RECOVER, +PCI_ERS_RESULT_DISCONNECT, or PCI_ERS_RESULT_NEED_RESET, depending on +whether it can recover or the AER driver calls mmio_enabled as next. + +If an error message indicates a fatal error, kernel will broadcast +error_detected(dev, pci_channel_io_frozen) to all drivers within +a hierarchy in question. Then, performing link reset at upstream is +necessary. As different kinds of devices might use different approaches +to reset link, AER port service driver is required to provide the +function to reset link. Firstly, kernel looks for if the upstream +component has an aer driver. If it has, kernel uses the reset_link +callback of the aer driver. If the upstream component has no aer driver +and the port is downstream port, we will use the aer driver of the +root port who reports the AER error. As for upstream ports, +they should provide their own aer service drivers with reset_link +function. If error_detected returns PCI_ERS_RESULT_CAN_RECOVER and +reset_link returns PCI_ERS_RESULT_RECOVERED, the error handling goes +to mmio_enabled. + +3.3 helper functions + +3.3.1 int pci_find_aer_capability(struct pci_dev *dev); +pci_find_aer_capability locates the PCI Express AER capability +in the device configuration space. If the device doesn't support +PCI-Express AER, the function returns 0. + +3.3.2 int pci_enable_pcie_error_reporting(struct pci_dev *dev); +pci_enable_pcie_error_reporting enables the device to send error +messages to root port when an error is detected. Note that devices +don't enable the error reporting by default, so device drivers need +call this function to enable it. + +3.3.3 int pci_disable_pcie_error_reporting(struct pci_dev *dev); +pci_disable_pcie_error_reporting disables the device to send error +messages to root port when an error is detected. + +3.3.4 int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev); +pci_cleanup_aer_uncorrect_error_status cleanups the uncorrectable +error status register. + +3.4 Frequent Asked Questions + +Q: What happens if a PCI Express device driver does not provide an +error recovery handler (pci_driver->err_handler is equal to NULL)? + +A: The devices attached with the driver won't be recovered. If the +error is fatal, kernel will print out warning messages. Please refer +to section 3 for more information. + +Q: What happens if an upstream port service driver does not provide +callback reset_link? + +A: Fatal error recovery will fail if the errors are reported by the +upstream ports who are attached by the service driver. + +Q: How does this infrastructure deal with driver that is not PCI +Express aware? + +A: This infrastructure calls the error callback functions of the +driver when an error happens. But if the driver is not aware of +PCI Express, the device might not report its own errors to root +port. + +Q: What modifications will that driver need to make it compatible +with the PCI Express AER Root driver? + +A: It could call the helper functions to enable AER in devices and +cleanup uncorrectable status register. Pls. refer to section 3.3. +
diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt index fba1e05..d0e79d5 100644 --- a/Documentation/power/devices.txt +++ b/Documentation/power/devices.txt
@@ -1,208 +1,553 @@ +Most of the code in Linux is device drivers, so most of the Linux power +management code is also driver-specific. Most drivers will do very little; +others, especially for platforms with small batteries (like cell phones), +will do a lot. -Device Power Management +This writeup gives an overview of how drivers interact with system-wide +power management goals, emphasizing the models and interfaces that are +shared by everything that hooks up to the driver model core. Read it as +background for the domain-specific work you'd do with any specific driver. -Device power management encompasses two areas - the ability to save -state and transition a device to a low-power state when the system is -entering a low-power state; and the ability to transition a device to -a low-power state while the system is running (and independently of -any other power management activity). +Two Models for Device Power Management +====================================== +Drivers will use one or both of these models to put devices into low-power +states: + + System Sleep model: + Drivers can enter low power states as part of entering system-wide + low-power states like "suspend-to-ram", or (mostly for systems with + disks) "hibernate" (suspend-to-disk). + + This is something that device, bus, and class drivers collaborate on + by implementing various role-specific suspend and resume methods to + cleanly power down hardware and software subsystems, then reactivate + them without loss of data. + + Some drivers can manage hardware wakeup events, which make the system + leave that low-power state. This feature may be disabled using the + relevant /sys/devices/.../power/wakeup file; enabling it may cost some + power usage, but let the whole system enter low power states more often. + + Runtime Power Management model: + Drivers may also enter low power states while the system is running, + independently of other power management activity. Upstream drivers + will normally not know (or care) if the device is in some low power + state when issuing requests; the driver will auto-resume anything + that's needed when it gets a request. + + This doesn't have, or need much infrastructure; it's just something you + should do when writing your drivers. For example, clk_disable() unused + clocks as part of minimizing power drain for currently-unused hardware. + Of course, sometimes clusters of drivers will collaborate with each + other, which could involve task-specific power management. + +There's not a lot to be said about those low power states except that they +are very system-specific, and often device-specific. Also, that if enough +drivers put themselves into low power states (at "runtime"), the effect may be +the same as entering some system-wide low-power state (system sleep) ... and +that synergies exist, so that several drivers using runtime pm might put the +system into a state where even deeper power saving options are available. + +Most suspended devices will have quiesced all I/O: no more DMA or irqs, no +more data read or written, and requests from upstream drivers are no longer +accepted. A given bus or platform may have different requirements though. + +Examples of hardware wakeup events include an alarm from a real time clock, +network wake-on-LAN packets, keyboard or mouse activity, and media insertion +or removal (for PCMCIA, MMC/SD, USB, and so on). -Methods +Interfaces for Entering System Sleep States +=========================================== +Most of the programming interfaces a device driver needs to know about +relate to that first model: entering a system-wide low power state, +rather than just minimizing power consumption by one device. -The methods to suspend and resume devices reside in struct bus_type: + +Bus Driver Methods +------------------ +The core methods to suspend and resume devices reside in struct bus_type. +These are mostly of interest to people writing infrastructure for busses +like PCI or USB, or because they define the primitives that device drivers +may need to apply in domain-specific ways to their devices: struct bus_type { - ... - int (*suspend)(struct device * dev, pm_message_t state); - int (*resume)(struct device * dev); + ... + int (*suspend)(struct device *dev, pm_message_t state); + int (*suspend_late)(struct device *dev, pm_message_t state); + + int (*resume_early)(struct device *dev); + int (*resume)(struct device *dev); }; -Each bus driver is responsible implementing these methods, translating -the call into a bus-specific request and forwarding the call to the -bus-specific drivers. For example, PCI drivers implement suspend() and -resume() methods in struct pci_driver. The PCI core is simply -responsible for translating the pointers to PCI-specific ones and -calling the low-level driver. +Bus drivers implement those methods as appropriate for the hardware and +the drivers using it; PCI works differently from USB, and so on. Not many +people write bus drivers; most driver code is a "device driver" that +builds on top of bus-specific framework code. -This is done to a) ease transition to the new power management methods -and leverage the existing PM code in various bus drivers; b) allow -buses to implement generic and default PM routines for devices, and c) -make the flow of execution obvious to the reader. +For more information on these driver calls, see the description later; +they are called in phases for every device, respecting the parent-child +sequencing in the driver model tree. Note that as this is being written, +only the suspend() and resume() are widely available; not many bus drivers +leverage all of those phases, or pass them down to lower driver levels. -System Power Management +/sys/devices/.../power/wakeup files +----------------------------------- +All devices in the driver model have two flags to control handling of +wakeup events, which are hardware signals that can force the device and/or +system out of a low power state. These are initialized by bus or device +driver code using device_init_wakeup(dev,can_wakeup). -When the system enters a low-power state, the device tree is walked in -a depth-first fashion to transition each device into a low-power -state. The ordering of the device tree is guaranteed by the order in -which devices get registered - children are never registered before -their ancestors, and devices are placed at the back of the list when -registered. By walking the list in reverse order, we are guaranteed to -suspend devices in the proper order. +The "can_wakeup" flag just records whether the device (and its driver) can +physically support wakeup events. When that flag is clear, the sysfs +"wakeup" file is empty, and device_may_wakeup() returns false. -Devices are suspended once with interrupts enabled. Drivers are -expected to stop I/O transactions, save device state, and place the -device into a low-power state. Drivers may sleep, allocate memory, -etc. at will. +For devices that can issue wakeup events, a separate flag controls whether +that device should try to use its wakeup mechanism. The initial value of +device_may_wakeup() will be true, so that the device's "wakeup" file holds +the value "enabled". Userspace can change that to "disabled" so that +device_may_wakeup() returns false; or change it back to "enabled" (so that +it returns true again). -Some devices are broken and will inevitably have problems powering -down or disabling themselves with interrupts enabled. For these -special cases, they may return -EAGAIN. This will put the device on a -list to be taken care of later. When interrupts are disabled, before -we enter the low-power state, their drivers are called again to put -their device to sleep. -On resume, the devices that returned -EAGAIN will be called to power -themselves back on with interrupts disabled. Once interrupts have been -re-enabled, the rest of the drivers will be called to resume their -devices. On resume, a driver is responsible for powering back on each -device, restoring state, and re-enabling I/O transactions for that -device. +EXAMPLE: PCI Device Driver Methods +----------------------------------- +PCI framework software calls these methods when the PCI device driver bound +to a device device has provided them: +struct pci_driver { + ... + int (*suspend)(struct pci_device *pdev, pm_message_t state); + int (*suspend_late)(struct pci_device *pdev, pm_message_t state); + + int (*resume_early)(struct pci_device *pdev); + int (*resume)(struct pci_device *pdev); +}; + +Drivers will implement those methods, and call PCI-specific procedures +like pci_set_power_state(), pci_enable_wake(), pci_save_state(), and +pci_restore_state() to manage PCI-specific mechanisms. (PCI config space +could be saved during driver probe, if it weren't for the fact that some +systems rely on userspace tweaking using setpci.) Devices are suspended +before their bridges enter low power states, and likewise bridges resume +before their devices. + + +Upper Layers of Driver Stacks +----------------------------- +Device drivers generally have at least two interfaces, and the methods +sketched above are the ones which apply to the lower level (nearer PCI, USB, +or other bus hardware). The network and block layers are examples of upper +level interfaces, as is a character device talking to userspace. + +Power management requests normally need to flow through those upper levels, +which often use domain-oriented requests like "blank that screen". In +some cases those upper levels will have power management intelligence that +relates to end-user activity, or other devices that work in cooperation. + +When those interfaces are structured using class interfaces, there is a +standard way to have the upper layer stop issuing requests to a given +class device (and restart later): + +struct class { + ... + int (*suspend)(struct device *dev, pm_message_t state); + int (*resume)(struct device *dev); +}; + +Those calls are issued in specific phases of the process by which the +system enters a low power "suspend" state, or resumes from it. + + +Calling Drivers to Enter System Sleep States +============================================ +When the system enters a low power state, each device's driver is asked +to suspend the device by putting it into state compatible with the target +system state. That's usually some version of "off", but the details are +system-specific. Also, wakeup-enabled devices will usually stay partly +functional in order to wake the system. + +When the system leaves that low power state, the device's driver is asked +to resume it. The suspend and resume operations always go together, and +both are multi-phase operations. + +For simple drivers, suspend might quiesce the device using the class code +and then turn its hardware as "off" as possible with late_suspend. The +matching resume calls would then completely reinitialize the hardware +before reactivating its class I/O queues. + +More power-aware drivers drivers will use more than one device low power +state, either at runtime or during system sleep states, and might trigger +system wakeup events. + + +Call Sequence Guarantees +------------------------ +To ensure that bridges and similar links needed to talk to a device are +available when the device is suspended or resumed, the device tree is +walked in a bottom-up order to suspend devices. A top-down order is +used to resume those devices. + +The ordering of the device tree is defined by the order in which devices +get registered: a child can never be registered, probed or resumed before +its parent; and can't be removed or suspended after that parent. + +The policy is that the device tree should match hardware bus topology. +(Or at least the control bus, for devices which use multiple busses.) + + +Suspending Devices +------------------ +Suspending a given device is done in several phases. Suspending the +system always includes every phase, executing calls for every device +before the next phase begins. Not all busses or classes support all +these callbacks; and not all drivers use all the callbacks. + +The phases are seen by driver notifications issued in this order: + + 1 class.suspend(dev, message) is called after tasks are frozen, for + devices associated with a class that has such a method. This + method may sleep. + + Since I/O activity usually comes from such higher layers, this is + a good place to quiesce all drivers of a given type (and keep such + code out of those drivers). + + 2 bus.suspend(dev, message) is called next. This method may sleep, + and is often morphed into a device driver call with bus-specific + parameters and/or rules. + + This call should handle parts of device suspend logic that require + sleeping. It probably does work to quiesce the device which hasn't + been abstracted into class.suspend() or bus.suspend_late(). + + 3 bus.suspend_late(dev, message) is called with IRQs disabled, and + with only one CPU active. Until the bus.resume_early() phase + completes (see later), IRQs are not enabled again. This method + won't be exposed by all busses; for message based busses like USB, + I2C, or SPI, device interactions normally require IRQs. This bus + call may be morphed into a driver call with bus-specific parameters. + + This call might save low level hardware state that might otherwise + be lost in the upcoming low power state, and actually put the + device into a low power state ... so that in some cases the device + may stay partly usable until this late. This "late" call may also + help when coping with hardware that behaves badly. + +The pm_message_t parameter is currently used to refine those semantics +(described later). + +At the end of those phases, drivers should normally have stopped all I/O +transactions (DMA, IRQs), saved enough state that they can re-initialize +or restore previous state (as needed by the hardware), and placed the +device into a low-power state. On many platforms they will also use +clk_disable() to gate off one or more clock sources; sometimes they will +also switch off power supplies, or reduce voltages. Drivers which have +runtime PM support may already have performed some or all of the steps +needed to prepare for the upcoming system sleep state. + +When any driver sees that its device_can_wakeup(dev), it should make sure +to use the relevant hardware signals to trigger a system wakeup event. +For example, enable_irq_wake() might identify GPIO signals hooked up to +a switch or other external hardware, and pci_enable_wake() does something +similar for PCI's PME# signal. + +If a driver (or bus, or class) fails it suspend method, the system won't +enter the desired low power state; it will resume all the devices it's +suspended so far. + +Note that drivers may need to perform different actions based on the target +system lowpower/sleep state. At this writing, there are only platform +specific APIs through which drivers could determine those target states. + + +Device Low Power (suspend) States +--------------------------------- +Device low-power states aren't very standard. One device might only handle +"on" and "off, while another might support a dozen different versions of +"on" (how many engines are active?), plus a state that gets back to "on" +faster than from a full "off". + +Some busses define rules about what different suspend states mean. PCI +gives one example: after the suspend sequence completes, a non-legacy +PCI device may not perform DMA or issue IRQs, and any wakeup events it +issues would be issued through the PME# bus signal. Plus, there are +several PCI-standard device states, some of which are optional. + +In contrast, integrated system-on-chip processors often use irqs as the +wakeup event sources (so drivers would call enable_irq_wake) and might +be able to treat DMA completion as a wakeup event (sometimes DMA can stay +active too, it'd only be the CPU and some peripherals that sleep). + +Some details here may be platform-specific. Systems may have devices that +can be fully active in certain sleep states, such as an LCD display that's +refreshed using DMA while most of the system is sleeping lightly ... and +its frame buffer might even be updated by a DSP or other non-Linux CPU while +the Linux control processor stays idle. + +Moreover, the specific actions taken may depend on the target system state. +One target system state might allow a given device to be very operational; +another might require a hard shut down with re-initialization on resume. +And two different target systems might use the same device in different +ways; the aforementioned LCD might be active in one product's "standby", +but a different product using the same SOC might work differently. + + +Meaning of pm_message_t.event +----------------------------- +Parameters to suspend calls include the device affected and a message of +type pm_message_t, which has one field: the event. If driver does not +recognize the event code, suspend calls may abort the request and return +a negative errno. However, most drivers will be fine if they implement +PM_EVENT_SUSPEND semantics for all messages. + +The event codes are used to refine the goal of suspending the device, and +mostly matter when creating or resuming system memory image snapshots, as +used with suspend-to-disk: + + PM_EVENT_SUSPEND -- quiesce the driver and put hardware into a low-power + state. When used with system sleep states like "suspend-to-RAM" or + "standby", the upcoming resume() call will often be able to rely on + state kept in hardware, or issue system wakeup events. When used + instead with suspend-to-disk, few devices support this capability; + most are completely powered off. + + PM_EVENT_FREEZE -- quiesce the driver, but don't necessarily change into + any low power mode. A system snapshot is about to be taken, often + followed by a call to the driver's resume() method. Neither wakeup + events nor DMA are allowed. + + PM_EVENT_PRETHAW -- quiesce the driver, knowing that the upcoming resume() + will restore a suspend-to-disk snapshot from a different kernel image. + Drivers that are smart enough to look at their hardware state during + resume() processing need that state to be correct ... a PRETHAW could + be used to invalidate that state (by resetting the device), like a + shutdown() invocation would before a kexec() or system halt. Other + drivers might handle this the same way as PM_EVENT_FREEZE. Neither + wakeup events nor DMA are allowed. + +To enter "standby" (ACPI S1) or "Suspend to RAM" (STR, ACPI S3) states, or +the similarly named APM states, only PM_EVENT_SUSPEND is used; for "Suspend +to Disk" (STD, hibernate, ACPI S4), all of those event codes are used. + +There's also PM_EVENT_ON, a value which never appears as a suspend event +but is sometimes used to record the "not suspended" device state. + + +Resuming Devices +---------------- +Resuming is done in multiple phases, much like suspending, with all +devices processing each phase's calls before the next phase begins. + +The phases are seen by driver notifications issued in this order: + + 1 bus.resume_early(dev) is called with IRQs disabled, and with + only one CPU active. As with bus.suspend_late(), this method + won't be supported on busses that require IRQs in order to + interact with devices. + + This reverses the effects of bus.suspend_late(). + + 2 bus.resume(dev) is called next. This may be morphed into a device + driver call with bus-specific parameters; implementations may sleep. + + This reverses the effects of bus.suspend(). + + 3 class.resume(dev) is called for devices associated with a class + that has such a method. Implementations may sleep. + + This reverses the effects of class.suspend(), and would usually + reactivate the device's I/O queue. + +At the end of those phases, drivers should normally be as functional as +they were before suspending: I/O can be performed using DMA and IRQs, and +the relevant clocks are gated on. The device need not be "fully on"; it +might be in a runtime lowpower/suspend state that acts as if it were. + +However, the details here may again be platform-specific. For example, +some systems support multiple "run" states, and the mode in effect at +the end of resume() might not be the one which preceded suspension. +That means availability of certain clocks or power supplies changed, +which could easily affect how a driver works. + + +Drivers need to be able to handle hardware which has been reset since the +suspend methods were called, for example by complete reinitialization. +This may be the hardest part, and the one most protected by NDA'd documents +and chip errata. It's simplest if the hardware state hasn't changed since +the suspend() was called, but that can't always be guaranteed. + +Drivers must also be prepared to notice that the device has been removed +while the system was powered off, whenever that's physically possible. +PCMCIA, MMC, USB, Firewire, SCSI, and even IDE are common examples of busses +where common Linux platforms will see such removal. Details of how drivers +will notice and handle such removals are currently bus-specific, and often +involve a separate thread. + + +Note that the bus-specific runtime PM wakeup mechanism can exist, and might +be defined to share some of the same driver code as for system wakeup. For +example, a bus-specific device driver's resume() method might be used there, +so it wouldn't only be called from bus.resume() during system-wide wakeup. +See bus-specific information about how runtime wakeup events are handled. + + +System Devices +-------------- System devices follow a slightly different API, which can be found in include/linux/sysdev.h drivers/base/sys.c -System devices will only be suspended with interrupts disabled, and -after all other devices have been suspended. On resume, they will be -resumed before any other devices, and also with interrupts disabled. +System devices will only be suspended with interrupts disabled, and after +all other devices have been suspended. On resume, they will be resumed +before any other devices, and also with interrupts disabled. + +That is, IRQs are disabled, the suspend_late() phase begins, then the +sysdev_driver.suspend() phase, and the system enters a sleep state. Then +the sysdev_driver.resume() phase begins, followed by the resume_early() +phase, after which IRQs are enabled. + +Code to actually enter and exit the system-wide low power state sometimes +involves hardware details that are only known to the boot firmware, and +may leave a CPU running software (from SRAM or flash memory) that monitors +the system and manages its wakeup sequence. Runtime Power Management +======================== +Many devices are able to dynamically power down while the system is still +running. This feature is useful for devices that are not being used, and +can offer significant power savings on a running system. These devices +often support a range of runtime power states, which might use names such +as "off", "sleep", "idle", "active", and so on. Those states will in some +cases (like PCI) be partially constrained by a bus the device uses, and will +usually include hardware states that are also used in system sleep states. -Many devices are able to dynamically power down while the system is -still running. This feature is useful for devices that are not being -used, and can offer significant power savings on a running system. +However, note that if a driver puts a device into a runtime low power state +and the system then goes into a system-wide sleep state, it normally ought +to resume into that runtime low power state rather than "full on". Such +distinctions would be part of the driver-internal state machine for that +hardware; the whole point of runtime power management is to be sure that +drivers are decoupled in that way from the state machine governing phases +of the system-wide power/sleep state transitions. -In each device's directory, there is a 'power' directory, which -contains at least a 'state' file. Reading from this file displays what -power state the device is currently in. Writing to this file initiates -a transition to the specified power state, which must be a decimal in -the range 1-3, inclusive; or 0 for 'On'. -The PM core will call the ->suspend() method in the bus_type object -that the device belongs to if the specified state is not 0, or -->resume() if it is. +Power Saving Techniques +----------------------- +Normally runtime power management is handled by the drivers without specific +userspace or kernel intervention, by device-aware use of techniques like: -Nothing will happen if the specified state is the same state the -device is currently in. + Using information provided by other system layers + - stay deeply "off" except between open() and close() + - if transceiver/PHY indicates "nobody connected", stay "off" + - application protocols may include power commands or hints -If the device is already in a low-power state, and the specified state -is another, but different, low-power state, the ->resume() method will -first be called to power the device back on, then ->suspend() will be -called again with the new state. + Using fewer CPU cycles + - using DMA instead of PIO + - removing timers, or making them lower frequency + - shortening "hot" code paths + - eliminating cache misses + - (sometimes) offloading work to device firmware -The driver is responsible for saving the working state of the device -and putting it into the low-power state specified. If this was -successful, it returns 0, and the device's power_state field is -updated. + Reducing other resource costs + - gating off unused clocks in software (or hardware) + - switching off unused power supplies + - eliminating (or delaying/merging) IRQs + - tuning DMA to use word and/or burst modes -The driver must take care to know whether or not it is able to -properly resume the device, including all step of reinitialization -necessary. (This is the hardest part, and the one most protected by -NDA'd documents). + Using device-specific low power states + - using lower voltages + - avoiding needless DMA transfers -The driver must also take care not to suspend a device that is -currently in use. It is their responsibility to provide their own -exclusion mechanisms. +Read your hardware documentation carefully to see the opportunities that +may be available. If you can, measure the actual power usage and check +it against the budget established for your project. -The runtime power transition happens with interrupts enabled. If a -device cannot support being powered down with interrupts, it may -return -EAGAIN (as it would during a system power management -transition), but it will _not_ be called again, and the transaction -will fail. -There is currently no way to know what states a device or driver -supports a priori. This will change in the future. +Examples: USB hosts, system timer, system CPU +---------------------------------------------- +USB host controllers make interesting, if complex, examples. In many cases +these have no work to do: no USB devices are connected, or all of them are +in the USB "suspend" state. Linux host controller drivers can then disable +periodic DMA transfers that would otherwise be a constant power drain on the +memory subsystem, and enter a suspend state. In power-aware controllers, +entering that suspend state may disable the clock used with USB signaling, +saving a certain amount of power. -pm_message_t meaning +The controller will be woken from that state (with an IRQ) by changes to the +signal state on the data lines of a given port, for example by an existing +peripheral requesting "remote wakeup" or by plugging a new peripheral. The +same wakeup mechanism usually works from "standby" sleep states, and on some +systems also from "suspend to RAM" (or even "suspend to disk") states. +(Except that ACPI may be involved instead of normal IRQs, on some hardware.) -pm_message_t has two fields. event ("major"), and flags. If driver -does not know event code, it aborts the request, returning error. Some -drivers may need to deal with special cases based on the actual type -of suspend operation being done at the system level. This is why -there are flags. +System devices like timers and CPUs may have special roles in the platform +power management scheme. For example, system timers using a "dynamic tick" +approach don't just save CPU cycles (by eliminating needless timer IRQs), +but they may also open the door to using lower power CPU "idle" states that +cost more than a jiffie to enter and exit. On x86 systems these are states +like "C3"; note that periodic DMA transfers from a USB host controller will +also prevent entry to a C3 state, much like a periodic timer IRQ. -Event codes are: +That kind of runtime mechanism interaction is common. "System On Chip" (SOC) +processors often have low power idle modes that can't be entered unless +certain medium-speed clocks (often 12 or 48 MHz) are gated off. When the +drivers gate those clocks effectively, then the system idle task may be able +to use the lower power idle modes and thereby increase battery life. -ON -- no need to do anything except special cases like broken -HW. +If the CPU can have a "cpufreq" driver, there also may be opportunities +to shift to lower voltage settings and reduce the power cost of executing +a given number of instructions. (Without voltage adjustment, it's rare +for cpufreq to save much power; the cost-per-instruction must go down.) -# NOTIFICATION -- pretty much same as ON? -FREEZE -- stop DMA and interrupts, and be prepared to reinit HW from -scratch. That probably means stop accepting upstream requests, the -actual policy of what to do with them being specific to a given -driver. It's acceptable for a network driver to just drop packets -while a block driver is expected to block the queue so no request is -lost. (Use IDE as an example on how to do that). FREEZE requires no -power state change, and it's expected for drivers to be able to -quickly transition back to operating state. +/sys/devices/.../power/state files +================================== +For now you can also test some of this functionality using sysfs. -SUSPEND -- like FREEZE, but also put hardware into low-power state. If -there's need to distinguish several levels of sleep, additional flag -is probably best way to do that. + DEPRECATED: USE "power/state" ONLY FOR DRIVER TESTING, AND + AVOID USING dev->power.power_state IN DRIVERS. -Transitions are only from a resumed state to a suspended state, never -between 2 suspended states. (ON -> FREEZE or ON -> SUSPEND can happen, -FREEZE -> SUSPEND or SUSPEND -> FREEZE can not). + THESE WILL BE REMOVED. IF THE "power/state" FILE GETS REPLACED, + IT WILL BECOME SOMETHING COUPLED TO THE BUS OR DRIVER. -All events are: +In each device's directory, there is a 'power' directory, which contains +at least a 'state' file. The value of this field is effectively boolean, +PM_EVENT_ON or PM_EVENT_SUSPEND. -[NOTE NOTE NOTE: If you are driver author, you should not care; you -should only look at event, and ignore flags.] + * Reading from this file displays a value corresponding to + the power.power_state.event field. All nonzero values are + displayed as "2", corresponding to a low power state; zero + is displayed as "0", corresponding to normal operation. -#Prepare for suspend -- userland is still running but we are going to -#enter suspend state. This gives drivers chance to load firmware from -#disk and store it in memory, or do other activities taht require -#operating userland, ability to kmalloc GFP_KERNEL, etc... All of these -#are forbiden once the suspend dance is started.. event = ON, flags = -#PREPARE_TO_SUSPEND + * Writing to this file initiates a transition using the + specified event code number; only '0', '2', and '3' are + accepted (without a newline); '2' and '3' are both + mapped to PM_EVENT_SUSPEND. -Apm standby -- prepare for APM event. Quiesce devices to make life -easier for APM BIOS. event = FREEZE, flags = APM_STANDBY +On writes, the PM core relies on that recorded event code and the device/bus +capabilities to determine whether it uses a partial suspend() or resume() +sequence to change things so that the recorded event corresponds to the +numeric parameter. -Apm suspend -- same as APM_STANDBY, but it we should probably avoid -spinning down disks. event = FREEZE, flags = APM_SUSPEND + - If the bus requires the irqs-disabled suspend_late()/resume_early() + phases, writes fail because those operations are not supported here. -System halt, reboot -- quiesce devices to make life easier for BIOS. event -= FREEZE, flags = SYSTEM_HALT or SYSTEM_REBOOT + - If the recorded value is the expected value, nothing is done. -System shutdown -- at least disks need to be spun down, or data may be -lost. Quiesce devices, just to make life easier for BIOS. event = -FREEZE, flags = SYSTEM_SHUTDOWN + - If the recorded value is nonzero, the device is partially resumed, + using the bus.resume() and/or class.resume() methods. -Kexec -- turn off DMAs and put hardware into some state where new -kernel can take over. event = FREEZE, flags = KEXEC + - If the target value is nonzero, the device is partially suspended, + using the class.suspend() and/or bus.suspend() methods and the + PM_EVENT_SUSPEND message. -Powerdown at end of swsusp -- very similar to SYSTEM_SHUTDOWN, except wake -may need to be enabled on some devices. This actually has at least 3 -subtypes, system can reboot, enter S4 and enter S5 at the end of -swsusp. event = FREEZE, flags = SWSUSP and one of SYSTEM_REBOOT, -SYSTEM_SHUTDOWN, SYSTEM_S4 - -Suspend to ram -- put devices into low power state. event = SUSPEND, -flags = SUSPEND_TO_RAM - -Freeze for swsusp snapshot -- stop DMA and interrupts. No need to put -devices into low power mode, but you must be able to reinitialize -device from scratch in resume method. This has two flavors, its done -once on suspending kernel, once on resuming kernel. event = FREEZE, -flags = DURING_SUSPEND or DURING_RESUME - -Device detach requested from /sys -- deinitialize device; proably same as -SYSTEM_SHUTDOWN, I do not understand this one too much. probably event -= FREEZE, flags = DEV_DETACH. - -#These are not really events sent: -# -#System fully on -- device is working normally; this is probably never -#passed to suspend() method... event = ON, flags = 0 -# -#Ready after resume -- userland is now running, again. Time to free any -#memory you ate during prepare to suspend... event = ON, flags = -#READY_AFTER_RESUME -# +Drivers have no way to tell whether their suspend() and resume() calls +have come through the sysfs power/state file or as part of entering a +system sleep state, except that when accessed through sysfs the normal +parent/child sequencing rules are ignored. Drivers (such as bus, bridge, +or hub drivers) which expose child devices may need to enforce those rules +on their own.
diff --git a/Documentation/power/interface.txt b/Documentation/power/interface.txt index 4117802..a66bec2 100644 --- a/Documentation/power/interface.txt +++ b/Documentation/power/interface.txt
@@ -52,3 +52,18 @@ Reading from this file will display the current image size limit, which is set to 500 MB by default. + +/sys/power/pm_trace controls the code which saves the last PM event point in +the RTC across reboots, so that you can debug a machine that just hangs +during suspend (or more commonly, during resume). Namely, the RTC is only +used to save the last PM event point if this file contains '1'. Initially it +contains '0' which may be changed to '1' by writing a string representing a +nonzero integer into it. + +To use this debugging feature you should attempt to suspend the machine, then +reboot it and run + + dmesg -s 1000000 | grep 'hash matches' + +CAUTION: Using it will cause your machine's real-time (CMOS) clock to be +set to a random invalid time after a resume.
diff --git a/Documentation/sh/new-machine.txt b/Documentation/sh/new-machine.txt index eb2dd2e..73988e0 100644 --- a/Documentation/sh/new-machine.txt +++ b/Documentation/sh/new-machine.txt
@@ -41,11 +41,6 @@ | .. more boards here ... -It should also be noted that each board is required to have some certain -headers. At the time of this writing, io.h is the only thing that needs -to be provided for each board, and can generally just reference generic -functions (with the exception of isa_port2addr). - Next, for companion chips: . `-- arch @@ -104,12 +99,13 @@ Both the Solution Engine and the hp6xx boards are an example of this. After you have setup your new arch/sh/boards/ directory, remember that you -also must add a directory in include/asm-sh for headers localized to this -board. In order to interoperate seamlessly with the build system, it's best -to have this directory the same as the arch/sh/boards/ directory name, -though if your board is again part of a family, the build system has ways -of dealing with this, and you can feel free to name the directory after -the family member itself. +should also add a directory in include/asm-sh for headers localized to this +board (if there are going to be more than one). In order to interoperate +seamlessly with the build system, it's best to have this directory the same +as the arch/sh/boards/ directory name, though if your board is again part of +a family, the build system has ways of dealing with this (via incdir-y +overloading), and you can feel free to name the directory after the family +member itself. There are a few things that each board is required to have, both in the arch/sh/boards and the include/asm-sh/ heirarchy. In order to better @@ -122,6 +118,7 @@ * arch/sh/boards/vapor/setup.c - Setup code for imaginary board */ #include <linux/init.h> +#include <asm/rtc.h> /* for board_time_init() */ const char *get_system_type(void) { @@ -152,79 +149,57 @@ } Our new imaginary board will also have to tie into the machvec in order for it -to be of any use. Currently the machvec is slowly on its way out, but is still -required for the time being. As such, let us take a look at what needs to be -done for the machvec assignment. +to be of any use. machvec functions fall into a number of categories: - I/O functions to IO memory (inb etc) and PCI/main memory (readb etc). - - I/O remapping functions (ioremap etc) - - some initialisation functions - - a 'heartbeat' function - - some miscellaneous flags + - I/O mapping functions (ioport_map, ioport_unmap, etc). + - a 'heartbeat' function. + - PCI and IRQ initialization routines. + - Consistent allocators (for boards that need special allocators, + particularly for allocating out of some board-specific SRAM for DMA + handles). -The tree can be built in two ways: - - as a fully generic build. All drivers are linked in, and all functions - go through the machvec - - as a machine specific build. In this case only the required drivers - will be linked in, and some macros may be redefined to not go through - the machvec where performance is important (in particular IO functions). +There are machvec functions added and removed over time, so always be sure to +consult include/asm-sh/machvec.h for the current state of the machvec. -There are three ways in which IO can be performed: - - none at all. This is really only useful for the 'unknown' machine type, - which us designed to run on a machine about which we know nothing, and - so all all IO instructions do nothing. - - fully custom. In this case all IO functions go to a machine specific - set of functions which can do what they like - - a generic set of functions. These will cope with most situations, - and rely on a single function, mv_port2addr, which is called through the - machine vector, and converts an IO address into a memory address, which - can be read from/written to directly. +The kernel will automatically wrap in generic routines for undefined function +pointers in the machvec at boot time, as machvec functions are referenced +unconditionally throughout most of the tree. Some boards have incredibly +sparse machvecs (such as the dreamcast and sh03), whereas others must define +virtually everything (rts7751r2d). -Thus adding a new machine involves the following steps (I will assume I am -adding a machine called vapor): +Adding a new machine is relatively trivial (using vapor as an example): - - add a new file include/asm-sh/vapor/io.h which contains prototypes for +If the board-specific definitions are quite minimalistic, as is the case for +the vast majority of boards, simply having a single board-specific header is +sufficient. + + - add a new file include/asm-sh/vapor.h which contains prototypes for any machine specific IO functions prefixed with the machine name, for example vapor_inb. These will be needed when filling out the machine vector. - This is the minimum that is required, however there are ample - opportunities to optimise this. In particular, by making the prototypes - inline function definitions, it is possible to inline the function when - building machine specific versions. Note that the machine vector - functions will still be needed, so that a module built for a generic - setup can be loaded. + Note that these prototypes are generated automatically by setting + __IO_PREFIX to something sensible. A typical example would be: - - add a new file arch/sh/boards/vapor/mach.c. This contains the definition - of the machine vector. When building the machine specific version, this - will be the real machine vector (via an alias), while in the generic - version is used to initialise the machine vector, and then freed, by - making it initdata. This should be defined as: + #define __IO_PREFIX vapor + #include <asm/io_generic.h> - struct sh_machine_vector mv_vapor __initmv = { - .mv_name = "vapor", - } - ALIAS_MV(vapor) + somewhere in the board-specific header. Any boards being ported that still + have a legacy io.h should remove it entirely and switch to the new model. - - finally add a file arch/sh/boards/vapor/io.c, which contains - definitions of the machine specific io functions. + - Add machine vector definitions to the board's setup.c. At a bare minimum, + this must be defined as something like: -A note about initialisation functions. Three initialisation functions are -provided in the machine vector: - - mv_arch_init - called very early on from setup_arch - - mv_init_irq - called from init_IRQ, after the generic SH interrupt - initialisation - - mv_init_pci - currently not used + struct sh_machine_vector mv_vapor __initmv = { + .mv_name = "vapor", + }; + ALIAS_MV(vapor) -Any other remaining functions which need to be called at start up can be -added to the list using the __initcalls macro (or module_init if the code -can be built as a module). Many generic drivers probe to see if the device -they are targeting is present, however this may not always be appropriate, -so a flag can be added to the machine vector which will be set on those -machines which have the hardware in question, reducing the probe to a -single conditional. + - finally add a file arch/sh/boards/vapor/io.c, which contains definitions of + the machine specific io functions (if there are enough to warrant it). 3. Hooking into the Build System ================================ @@ -303,4 +278,3 @@ oldconfig (prompting you for any new options since the time of creation), and start you on your way to having a functional kernel for your new board. -
diff --git a/Documentation/sh/register-banks.txt b/Documentation/sh/register-banks.txt new file mode 100644 index 0000000..a6719f2 --- /dev/null +++ b/Documentation/sh/register-banks.txt
@@ -0,0 +1,33 @@ + Notes on register bank usage in the kernel + ========================================== + +Introduction +------------ + +The SH-3 and SH-4 CPU families traditionally include a single partial register +bank (selected by SR.RB, only r0 ... r7 are banked), whereas other families +may have more full-featured banking or simply no such capabilities at all. + +SR.RB banking +------------- + +In the case of this type of banking, banked registers are mapped directly to +r0 ... r7 if SR.RB is set to the bank we are interested in, otherwise ldc/stc +can still be used to reference the banked registers (as r0_bank ... r7_bank) +when in the context of another bank. The developer must keep the SR.RB value +in mind when writing code that utilizes these banked registers, for obvious +reasons. Userspace is also not able to poke at the bank1 values, so these can +be used rather effectively as scratch registers by the kernel. + +Presently the kernel uses several of these registers. + + - r0_bank, r1_bank (referenced as k0 and k1, used for scratch + registers when doing exception handling). + - r2_bank (used to track the EXPEVT/INTEVT code) + - Used by do_IRQ() and friends for doing irq mapping based off + of the interrupt exception vector jump table offset + - r6_bank (global interrupt mask) + - The SR.IMASK interrupt handler makes use of this to set the + interrupt priority level (used by local_irq_enable()) + - r7_bank (current) +
diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index 7cee902..20d0d79 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt
@@ -29,6 +29,7 @@ - drop-caches - zone_reclaim_mode - min_unmapped_ratio +- min_slab_ratio - panic_on_oom ============================================================== @@ -138,7 +139,6 @@ 1 = Zone reclaim on 2 = Zone reclaim writes dirty pages out 4 = Zone reclaim swaps pages -8 = Also do a global slab reclaim pass zone_reclaim_mode is set during bootup to 1 if it is determined that pages from remote zones will cause a measurable performance reduction. The @@ -162,18 +162,13 @@ node unless explicitly overridden by memory policies or cpuset configurations. -It may be advisable to allow slab reclaim if the system makes heavy -use of files and builds up large slab caches. However, the slab -shrink operation is global, may take a long time and free slabs -in all nodes of the system. - ============================================================= min_unmapped_ratio: This is available only on NUMA kernels. -A percentage of the file backed pages in each zone. Zone reclaim will only +A percentage of the total pages in each zone. Zone reclaim will only occur if more than this percentage of pages are file backed and unmapped. This is to insure that a minimal amount of local pages is still available for file I/O even if the node is overallocated. @@ -182,6 +177,24 @@ ============================================================= +min_slab_ratio: + +This is available only on NUMA kernels. + +A percentage of the total pages in each zone. On Zone reclaim +(fallback from the local zone occurs) slabs will be reclaimed if more +than this percentage of pages in a zone are reclaimable slab pages. +This insures that the slab growth stays under control even in NUMA +systems that rarely perform global reclaim. + +The default is 5 percent. + +Note that slab reclaim is triggered in a per zone / node fashion. +The process of reclaiming slab memory is currently not node specific +and may not be fast. + +============================================================= + panic_on_oom This enables or disables panic on out-of-memory feature. If this is set to 1,
diff --git a/Documentation/usb/error-codes.txt b/Documentation/usb/error-codes.txt index 867f4c3..39c68f8 100644 --- a/Documentation/usb/error-codes.txt +++ b/Documentation/usb/error-codes.txt
@@ -98,13 +98,13 @@ error, a failure to respond (often caused by device disconnect), or some other fault. --ETIMEDOUT (**) No response packet received within the prescribed +-ETIME (**) No response packet received within the prescribed bus turn-around time. This error may instead be reported as -EPROTO or -EILSEQ. - Note that the synchronous USB message functions - also use this code to indicate timeout expired - before the transfer completed. +-ETIMEDOUT Synchronous USB message functions use this code + to indicate timeout expired before the transfer + completed, and no other error was reported by HC. -EPIPE (**) Endpoint stalled. For non-control endpoints, reset this status with usb_clear_halt(). @@ -163,6 +163,3 @@ usb_control_msg(): usb_bulk_msg(): -ETIMEDOUT Timeout expired before the transfer completed. - In the future this code may change to -ETIME, - whose definition is a closer match to this sort - of error.
diff --git a/Documentation/usb/usb-serial.txt b/Documentation/usb/usb-serial.txt index 02b0f7b..a2dee6e 100644 --- a/Documentation/usb/usb-serial.txt +++ b/Documentation/usb/usb-serial.txt
@@ -433,6 +433,11 @@ See http://www.uuhaus.de/linux/palmconnect.html for up-to-date information on this driver. +AIRcable USB Dongle Bluetooth driver + If there is the cdc_acm driver loaded in the system, you will find that the + cdc_acm claims the device before AIRcable can. This is simply corrected + by unloading both modules and then loading the aircable module before + cdc_acm module Generic Serial driver
diff --git a/Documentation/x86_64/boot-options.txt b/Documentation/x86_64/boot-options.txt index 6da24e7..4303e0c 100644 --- a/Documentation/x86_64/boot-options.txt +++ b/Documentation/x86_64/boot-options.txt
@@ -245,6 +245,13 @@ newfallback: use new unwinder but fall back to old if it gets stuck (default) + call_trace=[old|both|newfallback|new] + old: use old inexact backtracer + new: use new exact dwarf2 unwinder + both: print entries from both + newfallback: use new unwinder but fall back to old if it gets + stuck (default) + Misc noreplacement Don't replace instructions with more appropriate ones
diff --git a/Documentation/x86_64/kernel-stacks b/Documentation/x86_64/kernel-stacks new file mode 100644 index 0000000..bddfddd --- /dev/null +++ b/Documentation/x86_64/kernel-stacks
@@ -0,0 +1,99 @@ +Most of the text from Keith Owens, hacked by AK + +x86_64 page size (PAGE_SIZE) is 4K. + +Like all other architectures, x86_64 has a kernel stack for every +active thread. These thread stacks are THREAD_SIZE (2*PAGE_SIZE) big. +These stacks contain useful data as long as a thread is alive or a +zombie. While the thread is in user space the kernel stack is empty +except for the thread_info structure at the bottom. + +In addition to the per thread stacks, there are specialized stacks +associated with each cpu. These stacks are only used while the kernel +is in control on that cpu, when a cpu returns to user space the +specialized stacks contain no useful data. The main cpu stacks is + +* Interrupt stack. IRQSTACKSIZE + + Used for external hardware interrupts. If this is the first external + hardware interrupt (i.e. not a nested hardware interrupt) then the + kernel switches from the current task to the interrupt stack. Like + the split thread and interrupt stacks on i386 (with CONFIG_4KSTACKS), + this gives more room for kernel interrupt processing without having + to increase the size of every per thread stack. + + The interrupt stack is also used when processing a softirq. + +Switching to the kernel interrupt stack is done by software based on a +per CPU interrupt nest counter. This is needed because x86-64 "IST" +hardware stacks cannot nest without races. + +x86_64 also has a feature which is not available on i386, the ability +to automatically switch to a new stack for designated events such as +double fault or NMI, which makes it easier to handle these unusual +events on x86_64. This feature is called the Interrupt Stack Table +(IST). There can be up to 7 IST entries per cpu. The IST code is an +index into the Task State Segment (TSS), the IST entries in the TSS +point to dedicated stacks, each stack can be a different size. + +An IST is selected by an non-zero value in the IST field of an +interrupt-gate descriptor. When an interrupt occurs and the hardware +loads such a descriptor, the hardware automatically sets the new stack +pointer based on the IST value, then invokes the interrupt handler. If +software wants to allow nested IST interrupts then the handler must +adjust the IST values on entry to and exit from the interrupt handler. +(this is occasionally done, e.g. for debug exceptions) + +Events with different IST codes (i.e. with different stacks) can be +nested. For example, a debug interrupt can safely be interrupted by an +NMI. arch/x86_64/kernel/entry.S::paranoidentry adjusts the stack +pointers on entry to and exit from all IST events, in theory allowing +IST events with the same code to be nested. However in most cases, the +stack size allocated to an IST assumes no nesting for the same code. +If that assumption is ever broken then the stacks will become corrupt. + +The currently assigned IST stacks are :- + +* STACKFAULT_STACK. EXCEPTION_STKSZ (PAGE_SIZE). + + Used for interrupt 12 - Stack Fault Exception (#SS). + + This allows to recover from invalid stack segments. Rarely + happens. + +* DOUBLEFAULT_STACK. EXCEPTION_STKSZ (PAGE_SIZE). + + Used for interrupt 8 - Double Fault Exception (#DF). + + Invoked when handling a exception causes another exception. Happens + when the kernel is very confused (e.g. kernel stack pointer corrupt) + Using a separate stack allows to recover from it well enough in many + cases to still output an oops. + +* NMI_STACK. EXCEPTION_STKSZ (PAGE_SIZE). + + Used for non-maskable interrupts (NMI). + + NMI can be delivered at any time, including when the kernel is in the + middle of switching stacks. Using IST for NMI events avoids making + assumptions about the previous state of the kernel stack. + +* DEBUG_STACK. DEBUG_STKSZ + + Used for hardware debug interrupts (interrupt 1) and for software + debug interrupts (INT3). + + When debugging a kernel, debug interrupts (both hardware and + software) can occur at any time. Using IST for these interrupts + avoids making assumptions about the previous state of the kernel + stack. + +* MCE_STACK. EXCEPTION_STKSZ (PAGE_SIZE). + + Used for interrupt 18 - Machine Check Exception (#MC). + + MCE can be delivered at any time, including when the kernel is in the + middle of switching stacks. Using IST for MCE events avoids making + assumptions about the previous state of the kernel stack. + +For more details see the Intel IA32 or AMD AMD64 architecture manuals.
diff --git a/MAINTAINERS b/MAINTAINERS index b388988..cdb042f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS
@@ -443,6 +443,23 @@ T: git kernel.org:/pub/scm/linux/kernel/git/dwmw2/audit-2.6.git S: Maintained +AVR32 ARCHITECTURE +P: Atmel AVR32 Support Team +M: avr32@atmel.com +P: Haavard Skinnemoen +M: hskinnemoen@atmel.com +W: http://www.atmel.com/products/AVR32/ +W: http://avr32linux.org/ +W: http://avrfreaks.net/ +S: Supported + +AVR32/AT32AP MACHINE SUPPORT +P: Atmel AVR32 Support Team +M: avr32@atmel.com +P: Haavard Skinnemoen +M: hskinnemoen@atmel.com +S: Supported + AX.25 NETWORK LAYER P: Ralf Baechle M: ralf@linux-mips.org @@ -2049,6 +2066,13 @@ L: netfilter-devel@lists.netfilter.org S: Supported +NETLABEL +P: Paul Moore +M: paul.moore@hp.com +W: http://netlabel.sf.net +L: netdev@vger.kernel.org +S: Supported + NETROM NETWORK LAYER P: Ralf Baechle M: ralf@linux-mips.org @@ -2673,7 +2697,6 @@ P: Daniel Drake M: dsd@gentoo.org W: http://softmac.sipsolutions.net/ -L: softmac-dev@sipsolutions.net L: netdev@vger.kernel.org S: Maintained
diff --git a/Makefile b/Makefile index 80dac02..4c6c5e3 100644 --- a/Makefile +++ b/Makefile
@@ -1385,9 +1385,13 @@ endif #ifeq ($(mixed-targets),1) PHONY += checkstack kernelrelease kernelversion + +# Use $(SUBARCH) here instead of $(ARCH) so that this works for UML. +# In the UML case, $(SUBARCH) is the name of the underlying +# architecture, while for all other arches, it is the same as $(ARCH). checkstack: $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ - $(PERL) $(src)/scripts/checkstack.pl $(ARCH) + $(PERL) $(src)/scripts/checkstack.pl $(SUBARCH) kernelrelease: $(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 213c785..2b36afd 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig
@@ -381,7 +381,7 @@ config ALPHA_EV56 prompt "EV56 CPU (speed >= 333MHz)?" - depends on ALPHA_NORITAKE && ALPHA_PRIMO + depends on ALPHA_NORITAKE || ALPHA_PRIMO config ALPHA_EV56 prompt "EV56 CPU (speed >= 400MHz)?"
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c index 917dad1..550f490 100644 --- a/arch/alpha/mm/init.c +++ b/arch/alpha/mm/init.c
@@ -270,7 +270,7 @@ void paging_init(void) { - unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0}; + unsigned long zones_size[MAX_NR_ZONES] = {0, }; unsigned long dma_pfn, high_pfn; dma_pfn = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c index cce2657..337c01c 100644 --- a/arch/arm/mach-pxa/corgi.c +++ b/arch/arm/mach-pxa/corgi.c
@@ -284,21 +284,9 @@ /* * USB Device Controller */ -static void corgi_udc_command(int cmd) -{ - switch(cmd) { - case PXA2XX_UDC_CMD_CONNECT: - GPSR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP); - break; - case PXA2XX_UDC_CMD_DISCONNECT: - GPCR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP); - break; - } -} - static struct pxa2xx_udc_mach_info udc_info __initdata = { /* no connect GPIO; corgi can't tell connection status */ - .udc_command = corgi_udc_command, + .gpio_pullup = CORGI_GPIO_USB_PULLUP, }; @@ -350,7 +338,6 @@ corgi_ssp_set_machinfo(&corgi_ssp_machinfo); pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT); - pxa_gpio_mode(CORGI_GPIO_USB_PULLUP | GPIO_OUT); pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN); pxa_set_udc_info(&udc_info);
diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index 88a999d..591fc31 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c
@@ -177,7 +177,7 @@ * Free the page table, if there was one. */ if ((pmd_val(pmd) & PMD_TYPE_MASK) == PMD_TYPE_TABLE) - pte_free_kernel(pmd_page_kernel(pmd)); + pte_free_kernel(pmd_page_vaddr(pmd)); } addr += PGDIR_SIZE;
diff --git a/arch/arm/plat-omap/usb.c b/arch/arm/plat-omap/usb.c index 9b81532..7e80968 100644 --- a/arch/arm/plat-omap/usb.c +++ b/arch/arm/plat-omap/usb.c
@@ -26,7 +26,7 @@ #include <linux/errno.h> #include <linux/init.h> #include <linux/platform_device.h> -#include <linux/usb_otg.h> +#include <linux/usb/otg.h> #include <asm/io.h> #include <asm/irq.h>
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig new file mode 100644 index 0000000..5f1694e --- /dev/null +++ b/arch/avr32/Kconfig
@@ -0,0 +1,196 @@ +# +# For a description of the syntax of this configuration file, +# see Documentation/kbuild/kconfig-language.txt. +# + +mainmenu "Linux Kernel Configuration" + +config AVR32 + bool + default y + # With EMBEDDED=n, we get lots of stuff automatically selected + # that we usually don't need on AVR32. + select EMBEDDED + help + AVR32 is a high-performance 32-bit RISC microprocessor core, + designed for cost-sensitive embedded applications, with particular + emphasis on low power consumption and high code density. + + There is an AVR32 Linux project with a web page at + http://avr32linux.org/. + +config UID16 + bool + +config GENERIC_HARDIRQS + bool + default y + +config HARDIRQS_SW_RESEND + bool + default y + +config GENERIC_IRQ_PROBE + bool + default y + +config RWSEM_GENERIC_SPINLOCK + bool + default y + +config GENERIC_TIME + bool + default y + +config RWSEM_XCHGADD_ALGORITHM + bool + +config GENERIC_BUST_SPINLOCK + bool + +config GENERIC_HWEIGHT + bool + default y + +config GENERIC_CALIBRATE_DELAY + bool + default y + +source "init/Kconfig" + +menu "System Type and features" + +config SUBARCH_AVR32B + bool +config MMU + bool +config PERFORMANCE_COUNTERS + bool + +config PLATFORM_AT32AP + bool + select SUBARCH_AVR32B + select MMU + select PERFORMANCE_COUNTERS + +choice + prompt "AVR32 CPU type" + default CPU_AT32AP7000 + +config CPU_AT32AP7000 + bool "AT32AP7000" + select PLATFORM_AT32AP +endchoice + +# +# CPU Daughterboards for ATSTK1000 +config BOARD_ATSTK1002 + bool + +choice + prompt "AVR32 board type" + default BOARD_ATSTK1000 + +config BOARD_ATSTK1000 + bool "ATSTK1000 evaluation board" + select BOARD_ATSTK1002 if CPU_AT32AP7000 +endchoice + +choice + prompt "Boot loader type" + default LOADER_U_BOOT + +config LOADER_U_BOOT + bool "U-Boot (or similar) bootloader" +endchoice + +config LOAD_ADDRESS + hex + default 0x10000000 if LOADER_U_BOOT=y && CPU_AT32AP7000=y + +config ENTRY_ADDRESS + hex + default 0x90000000 if LOADER_U_BOOT=y && CPU_AT32AP7000=y + +config PHYS_OFFSET + hex + default 0x10000000 if CPU_AT32AP7000=y + +source "kernel/Kconfig.preempt" + +config HAVE_ARCH_BOOTMEM_NODE + bool + default n + +config ARCH_HAVE_MEMORY_PRESENT + bool + default n + +config NEED_NODE_MEMMAP_SIZE + bool + default n + +config ARCH_FLATMEM_ENABLE + bool + default y + +config ARCH_DISCONTIGMEM_ENABLE + bool + default n + +config ARCH_SPARSEMEM_ENABLE + bool + default n + +source "mm/Kconfig" + +config OWNERSHIP_TRACE + bool "Ownership trace support" + default y + help + Say Y to generate an Ownership Trace message on every context switch, + enabling Nexus-compliant debuggers to keep track of the PID of the + currently executing task. + +# FPU emulation goes here + +source "kernel/Kconfig.hz" + +config CMDLINE + string "Default kernel command line" + default "" + help + If you don't have a boot loader capable of passing a command line string + to the kernel, you may specify one here. As a minimum, you should specify + the memory size and the root device (e.g., mem=8M, root=/dev/nfs). + +endmenu + +menu "Bus options" + +config PCI + bool + +source "drivers/pci/Kconfig" + +source "drivers/pcmcia/Kconfig" + +endmenu + +menu "Executable file formats" +source "fs/Kconfig.binfmt" +endmenu + +source "net/Kconfig" + +source "drivers/Kconfig" + +source "fs/Kconfig" + +source "arch/avr32/Kconfig.debug" + +source "security/Kconfig" + +source "crypto/Kconfig" + +source "lib/Kconfig"
diff --git a/arch/avr32/Kconfig.debug b/arch/avr32/Kconfig.debug new file mode 100644 index 0000000..64ace00 --- /dev/null +++ b/arch/avr32/Kconfig.debug
@@ -0,0 +1,19 @@ +menu "Kernel hacking" + +config TRACE_IRQFLAGS_SUPPORT + bool + default y + +source "lib/Kconfig.debug" + +config KPROBES + bool "Kprobes" + depends on DEBUG_KERNEL + help + Kprobes allows you to trap at almost any kernel address and + execute a callback function. register_kprobe() establishes + a probepoint and specifies the callback. Kprobes is useful + for kernel debugging, non-intrusive instrumentation and testing. + If in doubt, say "N". + +endmenu
diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile new file mode 100644 index 0000000..cefc95a --- /dev/null +++ b/arch/avr32/Makefile
@@ -0,0 +1,84 @@ +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# +# Copyright (C) 2004-2006 Atmel Corporation. + +# Default target when executing plain make +.PHONY: all +all: uImage vmlinux.elf linux.lst + +KBUILD_DEFCONFIG := atstk1002_defconfig + +CFLAGS += -pipe -fno-builtin -mno-pic +AFLAGS += -mrelax -mno-pic +CFLAGS_MODULE += -mno-relax +LDFLAGS_vmlinux += --relax + +cpuflags-$(CONFIG_CPU_AP7000) += -mcpu=ap7000 + +CFLAGS += $(cpuflags-y) +AFLAGS += $(cpuflags-y) + +CHECKFLAGS += -D__avr32__ + +LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) + +head-$(CONFIG_LOADER_U_BOOT) += arch/avr32/boot/u-boot/head.o +head-y += arch/avr32/kernel/head.o +core-$(CONFIG_PLATFORM_AT32AP) += arch/avr32/mach-at32ap/ +core-$(CONFIG_BOARD_ATSTK1000) += arch/avr32/boards/atstk1000/ +core-$(CONFIG_LOADER_U_BOOT) += arch/avr32/boot/u-boot/ +core-y += arch/avr32/kernel/ +core-y += arch/avr32/mm/ +libs-y += arch/avr32/lib/ #$(LIBGCC) + +archincdir-$(CONFIG_PLATFORM_AT32AP) := arch-at32ap + +include/asm-avr32/.arch: $(wildcard include/config/platform/*.h) include/config/auto.conf + @echo ' SYMLINK include/asm-avr32/arch -> include/asm-avr32/$(archincdir-y)' +ifneq ($(KBUILD_SRC),) + $(Q)mkdir -p include/asm-avr32 + $(Q)ln -fsn $(srctree)/include/asm-avr32/$(archincdir-y) include/asm-avr32/arch +else + $(Q)ln -fsn $(archincdir-y) include/asm-avr32/arch +endif + @touch $@ + +archprepare: include/asm-avr32/.arch + +BOOT_TARGETS := vmlinux.elf vmlinux.bin uImage uImage.srec + +.PHONY: $(BOOT_TARGETS) install + +boot := arch/$(ARCH)/boot/images + + KBUILD_IMAGE := $(boot)/uImage +vmlinux.elf: KBUILD_IMAGE := $(boot)/vmlinux.elf +vmlinux.cso: KBUILD_IMAGE := $(boot)/vmlinux.cso +uImage.srec: KBUILD_IMAGE := $(boot)/uImage.srec +uImage: KBUILD_IMAGE := $(boot)/uImage + +quiet_cmd_listing = LST $@ + cmd_listing = avr32-linux-objdump $(OBJDUMPFLAGS) -lS $< > $@ +quiet_cmd_disasm = DIS $@ + cmd_disasm = avr32-linux-objdump $(OBJDUMPFLAGS) -d $< > $@ + +vmlinux.elf vmlinux.bin uImage.srec uImage vmlinux.cso: vmlinux + $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ + +install: vmlinux + $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@ + +linux.s: vmlinux + $(call if_changed,disasm) + +linux.lst: vmlinux + $(call if_changed,listing) + +define archhelp + @echo '* vmlinux.elf - ELF image with load address 0' + @echo ' vmlinux.cso - PathFinder CSO image' + @echo ' uImage - Create a bootable image for U-Boot' +endef
diff --git a/arch/avr32/boards/atstk1000/Makefile b/arch/avr32/boards/atstk1000/Makefile new file mode 100644 index 0000000..df94994 --- /dev/null +++ b/arch/avr32/boards/atstk1000/Makefile
@@ -0,0 +1,2 @@ +obj-y += setup.o spi.o flash.o +obj-$(CONFIG_BOARD_ATSTK1002) += atstk1002.o
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c new file mode 100644 index 0000000..49164e9 --- /dev/null +++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -0,0 +1,37 @@ +/* + * ATSTK1002 daughterboard-specific init code + * + * Copyright (C) 2005-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/init.h> + +#include <asm/arch/board.h> + +struct eth_platform_data __initdata eth0_data = { + .valid = 1, + .mii_phy_addr = 0x10, + .is_rmii = 0, + .hw_addr = { 0x6a, 0x87, 0x71, 0x14, 0xcd, 0xcb }, +}; + +extern struct lcdc_platform_data atstk1000_fb0_data; + +static int __init atstk1002_init(void) +{ + at32_add_system_devices(); + + at32_add_device_usart(1); /* /dev/ttyS0 */ + at32_add_device_usart(2); /* /dev/ttyS1 */ + at32_add_device_usart(3); /* /dev/ttyS2 */ + + at32_add_device_eth(0, ð0_data); + at32_add_device_spi(0); + at32_add_device_lcdc(0, &atstk1000_fb0_data); + + return 0; +} +postcore_initcall(atstk1002_init);
diff --git a/arch/avr32/boards/atstk1000/flash.c b/arch/avr32/boards/atstk1000/flash.c new file mode 100644 index 0000000..aac4300 --- /dev/null +++ b/arch/avr32/boards/atstk1000/flash.c
@@ -0,0 +1,95 @@ +/* + * ATSTK1000 board-specific flash initialization + * + * Copyright (C) 2005-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/mtd/physmap.h> + +#include <asm/arch/smc.h> + +static struct smc_config flash_config __initdata = { + .ncs_read_setup = 0, + .nrd_setup = 40, + .ncs_write_setup = 0, + .nwe_setup = 10, + + .ncs_read_pulse = 80, + .nrd_pulse = 40, + .ncs_write_pulse = 65, + .nwe_pulse = 55, + + .read_cycle = 120, + .write_cycle = 120, + + .bus_width = 2, + .nrd_controlled = 1, + .nwe_controlled = 1, + .byte_write = 1, +}; + +static struct mtd_partition flash_parts[] = { + { + .name = "u-boot", + .offset = 0x00000000, + .size = 0x00020000, /* 128 KiB */ + .mask_flags = MTD_WRITEABLE, + }, + { + .name = "root", + .offset = 0x00020000, + .size = 0x007d0000, + }, + { + .name = "env", + .offset = 0x007f0000, + .size = 0x00010000, + .mask_flags = MTD_WRITEABLE, + }, +}; + +static struct physmap_flash_data flash_data = { + .width = 2, + .nr_parts = ARRAY_SIZE(flash_parts), + .parts = flash_parts, +}; + +static struct resource flash_resource = { + .start = 0x00000000, + .end = 0x007fffff, + .flags = IORESOURCE_MEM, +}; + +static struct platform_device flash_device = { + .name = "physmap-flash", + .id = 0, + .resource = &flash_resource, + .num_resources = 1, + .dev = { + .platform_data = &flash_data, + }, +}; + +/* This needs to be called after the SMC has been initialized */ +static int __init atstk1000_flash_init(void) +{ + int ret; + + ret = smc_set_configuration(0, &flash_config); + if (ret < 0) { + printk(KERN_ERR "atstk1000: failed to set NOR flash timing\n"); + return ret; + } + + platform_device_register(&flash_device); + + return 0; +} +device_initcall(atstk1000_flash_init);
diff --git a/arch/avr32/boards/atstk1000/setup.c b/arch/avr32/boards/atstk1000/setup.c new file mode 100644 index 0000000..191ab85 --- /dev/null +++ b/arch/avr32/boards/atstk1000/setup.c
@@ -0,0 +1,59 @@ +/* + * ATSTK1000 board-specific setup code. + * + * Copyright (C) 2005-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/bootmem.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/linkage.h> + +#include <asm/setup.h> + +#include <asm/arch/board.h> + +/* Initialized by bootloader-specific startup code. */ +struct tag *bootloader_tags __initdata; + +struct lcdc_platform_data __initdata atstk1000_fb0_data; + +asmlinkage void __init board_early_init(void) +{ + extern void sdram_init(void); + +#ifdef CONFIG_LOADER_STANDALONE + sdram_init(); +#endif +} + +void __init board_setup_fbmem(unsigned long fbmem_start, + unsigned long fbmem_size) +{ + if (!fbmem_size) + return; + + if (!fbmem_start) { + void *fbmem; + + fbmem = alloc_bootmem_low_pages(fbmem_size); + fbmem_start = __pa(fbmem); + } else { + pg_data_t *pgdat; + + for_each_online_pgdat(pgdat) { + if (fbmem_start >= pgdat->bdata->node_boot_start + && fbmem_start <= pgdat->bdata->node_low_pfn) + reserve_bootmem_node(pgdat, fbmem_start, + fbmem_size); + } + } + + printk("%luKiB framebuffer memory at address 0x%08lx\n", + fbmem_size >> 10, fbmem_start); + atstk1000_fb0_data.fbmem_start = fbmem_start; + atstk1000_fb0_data.fbmem_size = fbmem_size; +}
diff --git a/arch/avr32/boards/atstk1000/spi.c b/arch/avr32/boards/atstk1000/spi.c new file mode 100644 index 0000000..567726c --- /dev/null +++ b/arch/avr32/boards/atstk1000/spi.c
@@ -0,0 +1,27 @@ +/* + * ATSTK1000 SPI devices + * + * Copyright (C) 2005 Atmel Norway + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/device.h> +#include <linux/spi/spi.h> + +static struct spi_board_info spi_board_info[] __initdata = { + { + .modalias = "ltv350qv", + .max_speed_hz = 16000000, + .bus_num = 0, + .chip_select = 1, + }, +}; + +static int board_init_spi(void) +{ + spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info)); + return 0; +} +arch_initcall(board_init_spi);
diff --git a/arch/avr32/boot/images/Makefile b/arch/avr32/boot/images/Makefile new file mode 100644 index 0000000..ccd74eee --- /dev/null +++ b/arch/avr32/boot/images/Makefile
@@ -0,0 +1,62 @@ +# +# Copyright (C) 2004-2006 Atmel Corporation +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# + +MKIMAGE := $(srctree)/scripts/mkuboot.sh + +extra-y := vmlinux.bin vmlinux.gz + +OBJCOPYFLAGS_vmlinux.bin := -O binary +$(obj)/vmlinux.bin: vmlinux FORCE + $(call if_changed,objcopy) + +$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE + $(call if_changed,gzip) + +quiet_cmd_uimage = UIMAGE $@ + cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A avr32 -O linux -T kernel \ + -C gzip -a $(CONFIG_LOAD_ADDRESS) -e $(CONFIG_ENTRY_ADDRESS) \ + -n 'Linux-$(KERNELRELEASE)' -d $< $@ + +targets += uImage uImage.srec +$(obj)/uImage: $(obj)/vmlinux.gz + $(call if_changed,uimage) + @echo ' Image $@ is ready' + +OBJCOPYFLAGS_uImage.srec := -I binary -O srec +$(obj)/uImage.srec: $(obj)/uImage + $(call if_changed,objcopy) + +OBJCOPYFLAGS_vmlinux.elf := --change-section-lma .text-0x80000000 \ + --change-section-lma __ex_table-0x80000000 \ + --change-section-lma .rodata-0x80000000 \ + --change-section-lma .data-0x80000000 \ + --change-section-lma .init-0x80000000 \ + --change-section-lma .bss-0x80000000 \ + --change-section-lma .initrd-0x80000000 \ + --change-section-lma __param-0x80000000 \ + --change-section-lma __ksymtab-0x80000000 \ + --change-section-lma __ksymtab_gpl-0x80000000 \ + --change-section-lma __kcrctab-0x80000000 \ + --change-section-lma __kcrctab_gpl-0x80000000 \ + --change-section-lma __ksymtab_strings-0x80000000 \ + --change-section-lma .got-0x80000000 \ + --set-start 0xa0000000 +$(obj)/vmlinux.elf: vmlinux FORCE + $(call if_changed,objcopy) + +quiet_cmd_sfdwarf = SFDWARF $@ + cmd_sfdwarf = sfdwarf $< TO $@ GNUAVR IW $(SFDWARF_FLAGS) > $(obj)/sfdwarf.log + +$(obj)/vmlinux.cso: $(obj)/vmlinux.elf FORCE + $(call if_changed,sfdwarf) + +install: $(BOOTIMAGE) + sh $(srctree)/install-kernel.sh $< + +# Generated files to be removed upon make clean +clean-files := vmlinux* uImage uImage.srec
diff --git a/arch/avr32/boot/u-boot/Makefile b/arch/avr32/boot/u-boot/Makefile new file mode 100644 index 0000000..125ddc9 --- /dev/null +++ b/arch/avr32/boot/u-boot/Makefile
@@ -0,0 +1,3 @@ +extra-y := head.o + +obj-y := empty.o
diff --git a/arch/avr32/boot/u-boot/empty.S b/arch/avr32/boot/u-boot/empty.S new file mode 100644 index 0000000..8ac91a5 --- /dev/null +++ b/arch/avr32/boot/u-boot/empty.S
@@ -0,0 +1 @@ +/* Empty file */
diff --git a/arch/avr32/boot/u-boot/head.S b/arch/avr32/boot/u-boot/head.S new file mode 100644 index 0000000..4488fa2 --- /dev/null +++ b/arch/avr32/boot/u-boot/head.S
@@ -0,0 +1,60 @@ +/* + * Startup code for use with the u-boot bootloader. + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <asm/setup.h> + + /* + * The kernel is loaded where we want it to be and all caches + * have just been flushed. We get two parameters from u-boot: + * + * r12 contains a magic number (ATAG_MAGIC) + * r11 points to a tag table providing information about + * the system. + */ + .section .init.text,"ax" + .global _start +_start: + /* Check if the boot loader actually provided a tag table */ + lddpc r0, magic_number + cp.w r12, r0 + brne no_tag_table + + /* Initialize .bss */ + lddpc r2, bss_start_addr + lddpc r3, end_addr + mov r0, 0 + mov r1, 0 +1: st.d r2++, r0 + cp r2, r3 + brlo 1b + + /* + * Save the tag table address for later use. This must be done + * _after_ .bss has been initialized... + */ + lddpc r0, tag_table_addr + st.w r0[0], r11 + + /* Jump to loader-independent setup code */ + rjmp kernel_entry + + .align 2 +magic_number: + .long ATAG_MAGIC +tag_table_addr: + .long bootloader_tags +bss_start_addr: + .long __bss_start +end_addr: + .long _end + +no_tag_table: + sub r12, pc, (. - 2f) + bral panic +2: .asciz "Boot loader didn't provide correct magic number\n"
diff --git a/arch/avr32/configs/atstk1002_defconfig b/arch/avr32/configs/atstk1002_defconfig new file mode 100644 index 0000000..1d22255 --- /dev/null +++ b/arch/avr32/configs/atstk1002_defconfig
@@ -0,0 +1,754 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.18-rc1 +# Tue Jul 11 12:41:36 2006 +# +CONFIG_AVR32=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_HARDIRQS_SW_RESEND=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_SWAP=y +# CONFIG_SYSVIPC is not set +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +# CONFIG_RELAY is not set +CONFIG_INITRAMFS_SOURCE="" +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_EMBEDDED=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +# CONFIG_BASE_FULL is not set +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +CONFIG_SHMEM=y +# CONFIG_SLAB is not set +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=1 +CONFIG_SLOB=y + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +# CONFIG_KMOD is not set + +# +# Block layer +# +# CONFIG_BLK_DEV_IO_TRACE is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +# CONFIG_IOSCHED_AS is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_DEFAULT_AS is not set +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +CONFIG_DEFAULT_NOOP=y +CONFIG_DEFAULT_IOSCHED="noop" + +# +# System Type and features +# +CONFIG_SUBARCH_AVR32B=y +CONFIG_MMU=y +CONFIG_PERFORMANCE_COUNTERS=y +CONFIG_PLATFORM_AT32AP=y +CONFIG_CPU_AT32AP7000=y +CONFIG_BOARD_ATSTK1002=y +CONFIG_BOARD_ATSTK1000=y +CONFIG_LOADER_U_BOOT=y +CONFIG_LOAD_ADDRESS=0x10000000 +CONFIG_ENTRY_ADDRESS=0x90000000 +CONFIG_PHYS_OFFSET=0x10000000 +CONFIG_PREEMPT_NONE=y +# CONFIG_PREEMPT_VOLUNTARY is not set +# CONFIG_PREEMPT is not set +# CONFIG_HAVE_ARCH_BOOTMEM_NODE is not set +# CONFIG_ARCH_HAVE_MEMORY_PRESENT is not set +# CONFIG_NEED_NODE_MEMMAP_SIZE is not set +CONFIG_ARCH_FLATMEM_ENABLE=y +# CONFIG_ARCH_DISCONTIGMEM_ENABLE is not set +# CONFIG_ARCH_SPARSEMEM_ENABLE is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 +# CONFIG_RESOURCES_64BIT is not set +# CONFIG_OWNERSHIP_TRACE is not set +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 +CONFIG_CMDLINE="" + +# +# Bus options +# + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_MISC is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +CONFIG_PACKET_MMAP=y +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +# CONFIG_SYN_COOKIES is not set +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_NET_TCPPROBE is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +# CONFIG_PREVENT_FIRMWARE_BUILD is not set +# CONFIG_FW_LOADER is not set +# CONFIG_DEBUG_DRIVER is not set +# CONFIG_SYS_HYPERVISOR is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +# CONFIG_MTD is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=m +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +CONFIG_BLK_DEV_NBD=m +CONFIG_BLK_DEV_RAM=m +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_INITRD=y +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +# CONFIG_SCSI is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set + +# +# IEEE 1394 (FireWire) support +# + +# +# I2O device support +# + +# +# Network device support +# +CONFIG_NETDEVICES=y +CONFIG_DUMMY=y +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +CONFIG_TUN=m + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +CONFIG_MACB=y + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +CONFIG_PPP=m +# CONFIG_PPP_MULTILINK is not set +# CONFIG_PPP_FILTER is not set +CONFIG_PPP_ASYNC=m +# CONFIG_PPP_SYNC_TTY is not set +CONFIG_PPP_DEFLATE=m +# CONFIG_PPP_BSDCOMP is not set +# CONFIG_PPP_MPPE is not set +# CONFIG_PPPOE is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +# CONFIG_INPUT is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_AT91=y +CONFIG_SERIAL_AT91_CONSOLE=y +# CONFIG_SERIAL_AT91_TTYAT is not set +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +CONFIG_UNIX98_PTYS=y +# CONFIG_LEGACY_PTYS is not set + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +# CONFIG_HW_RANDOM is not set +# CONFIG_RTC is not set +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set + +# +# Ftape, the floppy tape device driver +# +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set +# CONFIG_TELCLOCK is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# SPI support +# +CONFIG_SPI=y +# CONFIG_SPI_DEBUG is not set +CONFIG_SPI_MASTER=y + +# +# SPI Master Controller Drivers +# +CONFIG_SPI_ATMEL=m +# CONFIG_SPI_BITBANG is not set + +# +# SPI Protocol Masters +# + +# +# Dallas's 1-wire bus +# + +# +# Hardware Monitoring support +# +# CONFIG_HWMON is not set +# CONFIG_HWMON_VID is not set + +# +# Misc devices +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set +CONFIG_VIDEO_V4L2=y + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_FIRMWARE_EDID is not set +CONFIG_FB=m +CONFIG_FB_CFB_FILLRECT=m +CONFIG_FB_CFB_COPYAREA=m +CONFIG_FB_CFB_IMAGEBLIT=m +# CONFIG_FB_MACMODES is not set +# CONFIG_FB_BACKLIGHT is not set +# CONFIG_FB_MODE_HELPERS is not set +# CONFIG_FB_TILEBLITTING is not set +CONFIG_FB_SIDSA=m +CONFIG_FB_SIDSA_DEFAULT_BPP=24 +# CONFIG_FB_S1D13XXX is not set +# CONFIG_FB_VIRTUAL is not set + +# +# Logo configuration +# +# CONFIG_LOGO is not set +CONFIG_BACKLIGHT_LCD_SUPPORT=y +# CONFIG_BACKLIGHT_CLASS_DEVICE is not set +CONFIG_LCD_CLASS_DEVICE=m +CONFIG_LCD_DEVICE=y +CONFIG_LCD_LTV350QV=m + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# USB support +# +# CONFIG_USB_ARCH_HAS_HCD is not set +# CONFIG_USB_ARCH_HAS_OHCI is not set +# CONFIG_USB_ARCH_HAS_EHCI is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +# CONFIG_RTC_CLASS is not set + +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +# CONFIG_EXT3_FS is not set +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_OCFS2_FS is not set +CONFIG_MINIX_FS=m +CONFIG_ROMFS_FS=m +# CONFIG_INOTIFY is not set +# CONFIG_QUOTA is not set +# CONFIG_DNOTIFY is not set +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=m +CONFIG_MSDOS_FS=m +CONFIG_VFAT_FS=m +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_KCORE=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +CONFIG_CONFIGFS_FS=m + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +# CONFIG_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +# CONFIG_NFSD is not set +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +CONFIG_CIFS=m +# CONFIG_CIFS_STATS is not set +# CONFIG_CIFS_WEAK_PW_HASH is not set +# CONFIG_CIFS_XATTR is not set +# CONFIG_CIFS_DEBUG2 is not set +# CONFIG_CIFS_EXPERIMENTAL is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +CONFIG_NLS=m +CONFIG_NLS_DEFAULT="iso8859-1" +CONFIG_NLS_CODEPAGE_437=m +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +CONFIG_NLS_CODEPAGE_850=m +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +CONFIG_NLS_ISO8859_1=m +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +CONFIG_NLS_UTF8=m + +# +# Kernel hacking +# +CONFIG_TRACE_IRQFLAGS_SUPPORT=y +CONFIG_PRINTK_TIME=y +CONFIG_MAGIC_SYSRQ=y +# CONFIG_UNUSED_SYMBOLS is not set +CONFIG_DEBUG_KERNEL=y +CONFIG_LOG_BUF_SHIFT=14 +CONFIG_DETECT_SOFTLOCKUP=y +# CONFIG_SCHEDSTATS is not set +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_RWSEMS is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set +# CONFIG_DEBUG_KOBJECT is not set +CONFIG_DEBUG_BUGVERBOSE=y +# CONFIG_DEBUG_INFO is not set +CONFIG_DEBUG_FS=y +# CONFIG_DEBUG_VM is not set +CONFIG_FRAME_POINTER=y +# CONFIG_UNWIND_INFO is not set +CONFIG_FORCED_INLINING=y +# CONFIG_RCU_TORTURE_TEST is not set +CONFIG_KPROBES=y + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +CONFIG_CRC_CCITT=m +# CONFIG_CRC16 is not set +CONFIG_CRC32=m +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=m +CONFIG_ZLIB_DEFLATE=m
diff --git a/arch/avr32/kernel/Makefile b/arch/avr32/kernel/Makefile new file mode 100644 index 0000000..90e5aff --- /dev/null +++ b/arch/avr32/kernel/Makefile
@@ -0,0 +1,18 @@ +# +# Makefile for the Linux/AVR32 kernel. +# + +extra-y := head.o vmlinux.lds + +obj-$(CONFIG_SUBARCH_AVR32B) += entry-avr32b.o +obj-y += syscall_table.o syscall-stubs.o irq.o +obj-y += setup.o traps.o semaphore.o ptrace.o +obj-y += signal.o sys_avr32.o process.o time.o +obj-y += init_task.o switch_to.o cpu.o +obj-$(CONFIG_MODULES) += module.o avr32_ksyms.o +obj-$(CONFIG_KPROBES) += kprobes.o + +USE_STANDARD_AS_RULE := true + +%.lds: %.lds.c FORCE + $(call if_changed_dep,cpp_lds_S)
diff --git a/arch/avr32/kernel/asm-offsets.c b/arch/avr32/kernel/asm-offsets.c new file mode 100644 index 0000000..97d8658 --- /dev/null +++ b/arch/avr32/kernel/asm-offsets.c
@@ -0,0 +1,25 @@ +/* + * Generate definitions needed by assembly language modules. + * This code generates raw asm output which is post-processed + * to extract and format the required data. + */ + +#include <linux/thread_info.h> + +#define DEFINE(sym, val) \ + asm volatile("\n->" #sym " %0 " #val : : "i" (val)) + +#define BLANK() asm volatile("\n->" : : ) + +#define OFFSET(sym, str, mem) \ + DEFINE(sym, offsetof(struct str, mem)); + +void foo(void) +{ + OFFSET(TI_task, thread_info, task); + OFFSET(TI_exec_domain, thread_info, exec_domain); + OFFSET(TI_flags, thread_info, flags); + OFFSET(TI_cpu, thread_info, cpu); + OFFSET(TI_preempt_count, thread_info, preempt_count); + OFFSET(TI_restart_block, thread_info, restart_block); +}
diff --git a/arch/avr32/kernel/avr32_ksyms.c b/arch/avr32/kernel/avr32_ksyms.c new file mode 100644 index 0000000..04f767a --- /dev/null +++ b/arch/avr32/kernel/avr32_ksyms.c
@@ -0,0 +1,55 @@ +/* + * Export AVR32-specific functions for loadable modules. + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/module.h> + +#include <asm/checksum.h> +#include <asm/uaccess.h> +#include <asm/delay.h> + +/* + * GCC functions + */ +extern unsigned long long __avr32_lsl64(unsigned long long u, unsigned long b); +extern unsigned long long __avr32_lsr64(unsigned long long u, unsigned long b); +extern unsigned long long __avr32_asr64(unsigned long long u, unsigned long b); +EXPORT_SYMBOL(__avr32_lsl64); +EXPORT_SYMBOL(__avr32_lsr64); +EXPORT_SYMBOL(__avr32_asr64); + +/* + * String functions + */ +EXPORT_SYMBOL(memset); +EXPORT_SYMBOL(memcpy); + +/* + * Userspace access stuff. + */ +EXPORT_SYMBOL(copy_from_user); +EXPORT_SYMBOL(copy_to_user); +EXPORT_SYMBOL(__copy_user); +EXPORT_SYMBOL(strncpy_from_user); +EXPORT_SYMBOL(__strncpy_from_user); +EXPORT_SYMBOL(clear_user); +EXPORT_SYMBOL(__clear_user); +EXPORT_SYMBOL(csum_partial); +EXPORT_SYMBOL(csum_partial_copy_generic); + +/* Delay loops (lib/delay.S) */ +EXPORT_SYMBOL(__ndelay); +EXPORT_SYMBOL(__udelay); +EXPORT_SYMBOL(__const_udelay); + +/* Bit operations (lib/findbit.S) */ +EXPORT_SYMBOL(find_first_zero_bit); +EXPORT_SYMBOL(find_next_zero_bit); +EXPORT_SYMBOL(find_first_bit); +EXPORT_SYMBOL(find_next_bit); +EXPORT_SYMBOL(generic_find_next_zero_le_bit);
diff --git a/arch/avr32/kernel/cpu.c b/arch/avr32/kernel/cpu.c new file mode 100644 index 0000000..342452b --- /dev/null +++ b/arch/avr32/kernel/cpu.c
@@ -0,0 +1,327 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/init.h> +#include <linux/sysdev.h> +#include <linux/seq_file.h> +#include <linux/cpu.h> +#include <linux/percpu.h> +#include <linux/param.h> +#include <linux/errno.h> + +#include <asm/setup.h> +#include <asm/sysreg.h> + +static DEFINE_PER_CPU(struct cpu, cpu_devices); + +#ifdef CONFIG_PERFORMANCE_COUNTERS + +/* + * XXX: If/when a SMP-capable implementation of AVR32 will ever be + * made, we must make sure that the code executes on the correct CPU. + */ +static ssize_t show_pc0event(struct sys_device *dev, char *buf) +{ + unsigned long pccr; + + pccr = sysreg_read(PCCR); + return sprintf(buf, "0x%lx\n", (pccr >> 12) & 0x3f); +} +static ssize_t store_pc0event(struct sys_device *dev, const char *buf, + size_t count) +{ + unsigned long val; + char *endp; + + val = simple_strtoul(buf, &endp, 0); + if (endp == buf || val > 0x3f) + return -EINVAL; + val = (val << 12) | (sysreg_read(PCCR) & 0xfffc0fff); + sysreg_write(PCCR, val); + return count; +} +static ssize_t show_pc0count(struct sys_device *dev, char *buf) +{ + unsigned long pcnt0; + + pcnt0 = sysreg_read(PCNT0); + return sprintf(buf, "%lu\n", pcnt0); +} +static ssize_t store_pc0count(struct sys_device *dev, const char *buf, + size_t count) +{ + unsigned long val; + char *endp; + + val = simple_strtoul(buf, &endp, 0); + if (endp == buf) + return -EINVAL; + sysreg_write(PCNT0, val); + + return count; +} + +static ssize_t show_pc1event(struct sys_device *dev, char *buf) +{ + unsigned long pccr; + + pccr = sysreg_read(PCCR); + return sprintf(buf, "0x%lx\n", (pccr >> 18) & 0x3f); +} +static ssize_t store_pc1event(struct sys_device *dev, const char *buf, + size_t count) +{ + unsigned long val; + char *endp; + + val = simple_strtoul(buf, &endp, 0); + if (endp == buf || val > 0x3f) + return -EINVAL; + val = (val << 18) | (sysreg_read(PCCR) & 0xff03ffff); + sysreg_write(PCCR, val); + return count; +} +static ssize_t show_pc1count(struct sys_device *dev, char *buf) +{ + unsigned long pcnt1; + + pcnt1 = sysreg_read(PCNT1); + return sprintf(buf, "%lu\n", pcnt1); +} +static ssize_t store_pc1count(struct sys_device *dev, const char *buf, + size_t count) +{ + unsigned long val; + char *endp; + + val = simple_strtoul(buf, &endp, 0); + if (endp == buf) + return -EINVAL; + sysreg_write(PCNT1, val); + + return count; +} + +static ssize_t show_pccycles(struct sys_device *dev, char *buf) +{ + unsigned long pccnt; + + pccnt = sysreg_read(PCCNT); + return sprintf(buf, "%lu\n", pccnt); +} +static ssize_t store_pccycles(struct sys_device *dev, const char *buf, + size_t count) +{ + unsigned long val; + char *endp; + + val = simple_strtoul(buf, &endp, 0); + if (endp == buf) + return -EINVAL; + sysreg_write(PCCNT, val); + + return count; +} + +static ssize_t show_pcenable(struct sys_device *dev, char *buf) +{ + unsigned long pccr; + + pccr = sysreg_read(PCCR); + return sprintf(buf, "%c\n", (pccr & 1)?'1':'0'); +} +static ssize_t store_pcenable(struct sys_device *dev, const char *buf, + size_t count) +{ + unsigned long pccr, val; + char *endp; + + val = simple_strtoul(buf, &endp, 0); + if (endp == buf) + return -EINVAL; + if (val) + val = 1; + + pccr = sysreg_read(PCCR); + pccr = (pccr & ~1UL) | val; + sysreg_write(PCCR, pccr); + + return count; +} + +static SYSDEV_ATTR(pc0event, 0600, show_pc0event, store_pc0event); +static SYSDEV_ATTR(pc0count, 0600, show_pc0count, store_pc0count); +static SYSDEV_ATTR(pc1event, 0600, show_pc1event, store_pc1event); +static SYSDEV_ATTR(pc1count, 0600, show_pc1count, store_pc1count); +static SYSDEV_ATTR(pccycles, 0600, show_pccycles, store_pccycles); +static SYSDEV_ATTR(pcenable, 0600, show_pcenable, store_pcenable); + +#endif /* CONFIG_PERFORMANCE_COUNTERS */ + +static int __init topology_init(void) +{ + int cpu; + + for_each_possible_cpu(cpu) { + struct cpu *c = &per_cpu(cpu_devices, cpu); + + register_cpu(c, cpu); + +#ifdef CONFIG_PERFORMANCE_COUNTERS + sysdev_create_file(&c->sysdev, &attr_pc0event); + sysdev_create_file(&c->sysdev, &attr_pc0count); + sysdev_create_file(&c->sysdev, &attr_pc1event); + sysdev_create_file(&c->sysdev, &attr_pc1count); + sysdev_create_file(&c->sysdev, &attr_pccycles); + sysdev_create_file(&c->sysdev, &attr_pcenable); +#endif + } + + return 0; +} + +subsys_initcall(topology_init); + +static const char *cpu_names[] = { + "Morgan", + "AP7000", +}; +#define NR_CPU_NAMES ARRAY_SIZE(cpu_names) + +static const char *arch_names[] = { + "AVR32A", + "AVR32B", +}; +#define NR_ARCH_NAMES ARRAY_SIZE(arch_names) + +static const char *mmu_types[] = { + "No MMU", + "ITLB and DTLB", + "Shared TLB", + "MPU" +}; + +void __init setup_processor(void) +{ + unsigned long config0, config1; + unsigned cpu_id, cpu_rev, arch_id, arch_rev, mmu_type; + unsigned tmp; + + config0 = sysreg_read(CONFIG0); /* 0x0000013e; */ + config1 = sysreg_read(CONFIG1); /* 0x01f689a2; */ + cpu_id = config0 >> 24; + cpu_rev = (config0 >> 16) & 0xff; + arch_id = (config0 >> 13) & 0x07; + arch_rev = (config0 >> 10) & 0x07; + mmu_type = (config0 >> 7) & 0x03; + + boot_cpu_data.arch_type = arch_id; + boot_cpu_data.cpu_type = cpu_id; + boot_cpu_data.arch_revision = arch_rev; + boot_cpu_data.cpu_revision = cpu_rev; + boot_cpu_data.tlb_config = mmu_type; + + tmp = (config1 >> 13) & 0x07; + if (tmp) { + boot_cpu_data.icache.ways = 1 << ((config1 >> 10) & 0x07); + boot_cpu_data.icache.sets = 1 << ((config1 >> 16) & 0x0f); + boot_cpu_data.icache.linesz = 1 << (tmp + 1); + } + tmp = (config1 >> 3) & 0x07; + if (tmp) { + boot_cpu_data.dcache.ways = 1 << (config1 & 0x07); + boot_cpu_data.dcache.sets = 1 << ((config1 >> 6) & 0x0f); + boot_cpu_data.dcache.linesz = 1 << (tmp + 1); + } + + if ((cpu_id >= NR_CPU_NAMES) || (arch_id >= NR_ARCH_NAMES)) { + printk ("Unknown CPU configuration (ID %02x, arch %02x), " + "continuing anyway...\n", + cpu_id, arch_id); + return; + } + + printk ("CPU: %s [%02x] revision %d (%s revision %d)\n", + cpu_names[cpu_id], cpu_id, cpu_rev, + arch_names[arch_id], arch_rev); + printk ("CPU: MMU configuration: %s\n", mmu_types[mmu_type]); + printk ("CPU: features:"); + if (config0 & (1 << 6)) + printk(" fpu"); + if (config0 & (1 << 5)) + printk(" java"); + if (config0 & (1 << 4)) + printk(" perfctr"); + if (config0 & (1 << 3)) + printk(" ocd"); + printk("\n"); +} + +#ifdef CONFIG_PROC_FS +static int c_show(struct seq_file *m, void *v) +{ + unsigned int icache_size, dcache_size; + unsigned int cpu = smp_processor_id(); + + icache_size = boot_cpu_data.icache.ways * + boot_cpu_data.icache.sets * + boot_cpu_data.icache.linesz; + dcache_size = boot_cpu_data.dcache.ways * + boot_cpu_data.dcache.sets * + boot_cpu_data.dcache.linesz; + + seq_printf(m, "processor\t: %d\n", cpu); + + if (boot_cpu_data.arch_type < NR_ARCH_NAMES) + seq_printf(m, "cpu family\t: %s revision %d\n", + arch_names[boot_cpu_data.arch_type], + boot_cpu_data.arch_revision); + if (boot_cpu_data.cpu_type < NR_CPU_NAMES) + seq_printf(m, "cpu type\t: %s revision %d\n", + cpu_names[boot_cpu_data.cpu_type], + boot_cpu_data.cpu_revision); + + seq_printf(m, "i-cache\t\t: %dK (%u ways x %u sets x %u)\n", + icache_size >> 10, + boot_cpu_data.icache.ways, + boot_cpu_data.icache.sets, + boot_cpu_data.icache.linesz); + seq_printf(m, "d-cache\t\t: %dK (%u ways x %u sets x %u)\n", + dcache_size >> 10, + boot_cpu_data.dcache.ways, + boot_cpu_data.dcache.sets, + boot_cpu_data.dcache.linesz); + seq_printf(m, "bogomips\t: %lu.%02lu\n", + boot_cpu_data.loops_per_jiffy / (500000/HZ), + (boot_cpu_data.loops_per_jiffy / (5000/HZ)) % 100); + + return 0; +} + +static void *c_start(struct seq_file *m, loff_t *pos) +{ + return *pos < 1 ? (void *)1 : NULL; +} + +static void *c_next(struct seq_file *m, void *v, loff_t *pos) +{ + ++*pos; + return NULL; +} + +static void c_stop(struct seq_file *m, void *v) +{ + +} + +struct seq_operations cpuinfo_op = { + .start = c_start, + .next = c_next, + .stop = c_stop, + .show = c_show +}; +#endif /* CONFIG_PROC_FS */
diff --git a/arch/avr32/kernel/entry-avr32b.S b/arch/avr32/kernel/entry-avr32b.S new file mode 100644 index 0000000..eeb6679 --- /dev/null +++ b/arch/avr32/kernel/entry-avr32b.S
@@ -0,0 +1,678 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* + * This file contains the low-level entry-points into the kernel, that is, + * exception handlers, debug trap handlers, interrupt handlers and the + * system call handler. + */ +#include <linux/errno.h> + +#include <asm/asm.h> +#include <asm/hardirq.h> +#include <asm/irq.h> +#include <asm/ocd.h> +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/ptrace.h> +#include <asm/sysreg.h> +#include <asm/thread_info.h> +#include <asm/unistd.h> + +#ifdef CONFIG_PREEMPT +# define preempt_stop mask_interrupts +#else +# define preempt_stop +# define fault_resume_kernel fault_restore_all +#endif + +#define __MASK(x) ((1 << (x)) - 1) +#define IRQ_MASK ((__MASK(SOFTIRQ_BITS) << SOFTIRQ_SHIFT) | \ + (__MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT)) + + .section .ex.text,"ax",@progbits + .align 2 +exception_vectors: + bral handle_critical + .align 2 + bral handle_critical + .align 2 + bral do_bus_error_write + .align 2 + bral do_bus_error_read + .align 2 + bral do_nmi_ll + .align 2 + bral handle_address_fault + .align 2 + bral handle_protection_fault + .align 2 + bral handle_debug + .align 2 + bral do_illegal_opcode_ll + .align 2 + bral do_illegal_opcode_ll + .align 2 + bral do_illegal_opcode_ll + .align 2 + bral do_fpe_ll + .align 2 + bral do_illegal_opcode_ll + .align 2 + bral handle_address_fault + .align 2 + bral handle_address_fault + .align 2 + bral handle_protection_fault + .align 2 + bral handle_protection_fault + .align 2 + bral do_dtlb_modified + + /* + * r0 : PGD/PT/PTE + * r1 : Offending address + * r2 : Scratch register + * r3 : Cause (5, 12 or 13) + */ +#define tlbmiss_save pushm r0-r3 +#define tlbmiss_restore popm r0-r3 + + .section .tlbx.ex.text,"ax",@progbits + .global itlb_miss +itlb_miss: + tlbmiss_save + rjmp tlb_miss_common + + .section .tlbr.ex.text,"ax",@progbits +dtlb_miss_read: + tlbmiss_save + rjmp tlb_miss_common + + .section .tlbw.ex.text,"ax",@progbits +dtlb_miss_write: + tlbmiss_save + + .global tlb_miss_common +tlb_miss_common: + mfsr r0, SYSREG_PTBR + mfsr r1, SYSREG_TLBEAR + + /* Is it the vmalloc space? */ + bld r1, 31 + brcs handle_vmalloc_miss + + /* First level lookup */ +pgtbl_lookup: + lsr r2, r1, PGDIR_SHIFT + ld.w r0, r0[r2 << 2] + bld r0, _PAGE_BIT_PRESENT + brcc page_table_not_present + + /* TODO: Check access rights on page table if necessary */ + + /* Translate to virtual address in P1. */ + andl r0, 0xf000 + sbr r0, 31 + + /* Second level lookup */ + lsl r1, (32 - PGDIR_SHIFT) + lsr r1, (32 - PGDIR_SHIFT) + PAGE_SHIFT + add r2, r0, r1 << 2 + ld.w r1, r2[0] + bld r1, _PAGE_BIT_PRESENT + brcc page_not_present + + /* Mark the page as accessed */ + sbr r1, _PAGE_BIT_ACCESSED + st.w r2[0], r1 + + /* Drop software flags */ + andl r1, _PAGE_FLAGS_HARDWARE_MASK & 0xffff + mtsr SYSREG_TLBELO, r1 + + /* Figure out which entry we want to replace */ + mfsr r0, SYSREG_TLBARLO + clz r2, r0 + brcc 1f + mov r1, -1 /* All entries have been accessed, */ + mtsr SYSREG_TLBARLO, r1 /* so reset TLBAR */ + mov r2, 0 /* and start at 0 */ +1: mfsr r1, SYSREG_MMUCR + lsl r2, 14 + andl r1, 0x3fff, COH + or r1, r2 + mtsr SYSREG_MMUCR, r1 + + tlbw + + tlbmiss_restore + rete + +handle_vmalloc_miss: + /* Simply do the lookup in init's page table */ + mov r0, lo(swapper_pg_dir) + orh r0, hi(swapper_pg_dir) + rjmp pgtbl_lookup + + + /* --- System Call --- */ + + .section .scall.text,"ax",@progbits +system_call: + pushm r12 /* r12_orig */ + stmts --sp, r0-lr + zero_fp + mfsr r0, SYSREG_RAR_SUP + mfsr r1, SYSREG_RSR_SUP + stm --sp, r0-r1 + + /* check for syscall tracing */ + get_thread_info r0 + ld.w r1, r0[TI_flags] + bld r1, TIF_SYSCALL_TRACE + brcs syscall_trace_enter + +syscall_trace_cont: + cp.w r8, NR_syscalls + brhs syscall_badsys + + lddpc lr, syscall_table_addr + ld.w lr, lr[r8 << 2] + mov r8, r5 /* 5th argument (6th is pushed by stub) */ + icall lr + + .global syscall_return +syscall_return: + get_thread_info r0 + mask_interrupts /* make sure we don't miss an interrupt + setting need_resched or sigpending + between sampling and the rets */ + + /* Store the return value so that the correct value is loaded below */ + stdsp sp[REG_R12], r12 + + ld.w r1, r0[TI_flags] + andl r1, _TIF_ALLWORK_MASK, COH + brne syscall_exit_work + +syscall_exit_cont: + popm r8-r9 + mtsr SYSREG_RAR_SUP, r8 + mtsr SYSREG_RSR_SUP, r9 + ldmts sp++, r0-lr + sub sp, -4 /* r12_orig */ + rets + + .align 2 +syscall_table_addr: + .long sys_call_table + +syscall_badsys: + mov r12, -ENOSYS + rjmp syscall_return + + .global ret_from_fork +ret_from_fork: + rcall schedule_tail + + /* check for syscall tracing */ + get_thread_info r0 + ld.w r1, r0[TI_flags] + andl r1, _TIF_ALLWORK_MASK, COH + brne syscall_exit_work + rjmp syscall_exit_cont + +syscall_trace_enter: + pushm r8-r12 + rcall syscall_trace + popm r8-r12 + rjmp syscall_trace_cont + +syscall_exit_work: + bld r1, TIF_SYSCALL_TRACE + brcc 1f + unmask_interrupts + rcall syscall_trace + mask_interrupts + ld.w r1, r0[TI_flags] + +1: bld r1, TIF_NEED_RESCHED + brcc 2f + unmask_interrupts + rcall schedule + mask_interrupts + ld.w r1, r0[TI_flags] + rjmp 1b + +2: mov r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK + tst r1, r2 + breq 3f + unmask_interrupts + mov r12, sp + mov r11, r0 + rcall do_notify_resume + mask_interrupts + ld.w r1, r0[TI_flags] + rjmp 1b + +3: bld r1, TIF_BREAKPOINT + brcc syscall_exit_cont + mfsr r3, SYSREG_TLBEHI + lddsp r2, sp[REG_PC] + andl r3, 0xff, COH + lsl r3, 1 + sbr r3, 30 + sbr r3, 0 + mtdr DBGREG_BWA2A, r2 + mtdr DBGREG_BWC2A, r3 + rjmp syscall_exit_cont + + + /* The slow path of the TLB miss handler */ +page_table_not_present: +page_not_present: + tlbmiss_restore + sub sp, 4 + stmts --sp, r0-lr + rcall save_full_context_ex + mfsr r12, SYSREG_ECR + mov r11, sp + rcall do_page_fault + rjmp ret_from_exception + + /* This function expects to find offending PC in SYSREG_RAR_EX */ +save_full_context_ex: + mfsr r8, SYSREG_RSR_EX + mov r12, r8 + andh r8, (MODE_MASK >> 16), COH + mfsr r11, SYSREG_RAR_EX + brne 2f + +1: pushm r11, r12 /* PC and SR */ + unmask_exceptions + ret r12 + +2: sub r10, sp, -(FRAME_SIZE_FULL - REG_LR) + stdsp sp[4], r10 /* replace saved SP */ + rjmp 1b + + /* Low-level exception handlers */ +handle_critical: + pushm r12 + pushm r0-r12 + rcall save_full_context_ex + mfsr r12, SYSREG_ECR + mov r11, sp + rcall do_critical_exception + + /* We should never get here... */ +bad_return: + sub r12, pc, (. - 1f) + bral panic + .align 2 +1: .asciz "Return from critical exception!" + + .align 1 +do_bus_error_write: + sub sp, 4 + stmts --sp, r0-lr + rcall save_full_context_ex + mov r11, 1 + rjmp 1f + +do_bus_error_read: + sub sp, 4 + stmts --sp, r0-lr + rcall save_full_context_ex + mov r11, 0 +1: mfsr r12, SYSREG_BEAR + mov r10, sp + rcall do_bus_error + rjmp ret_from_exception + + .align 1 +do_nmi_ll: + sub sp, 4 + stmts --sp, r0-lr + /* FIXME: Make sure RAR_NMI and RSR_NMI are pushed instead of *_EX */ + rcall save_full_context_ex + mfsr r12, SYSREG_ECR + mov r11, sp + rcall do_nmi + rjmp bad_return + +handle_address_fault: + sub sp, 4 + stmts --sp, r0-lr + rcall save_full_context_ex + mfsr r12, SYSREG_ECR + mov r11, sp + rcall do_address_exception + rjmp ret_from_exception + +handle_protection_fault: + sub sp, 4 + stmts --sp, r0-lr + rcall save_full_context_ex + mfsr r12, SYSREG_ECR + mov r11, sp + rcall do_page_fault + rjmp ret_from_exception + + .align 1 +do_illegal_opcode_ll: + sub sp, 4 + stmts --sp, r0-lr + rcall save_full_context_ex + mfsr r12, SYSREG_ECR + mov r11, sp + rcall do_illegal_opcode + rjmp ret_from_exception + +do_dtlb_modified: + pushm r0-r3 + mfsr r1, SYSREG_TLBEAR + mfsr r0, SYSREG_PTBR + lsr r2, r1, PGDIR_SHIFT + ld.w r0, r0[r2 << 2] + lsl r1, (32 - PGDIR_SHIFT) + lsr r1, (32 - PGDIR_SHIFT) + PAGE_SHIFT + + /* Translate to virtual address in P1 */ + andl r0, 0xf000 + sbr r0, 31 + add r2, r0, r1 << 2 + ld.w r3, r2[0] + sbr r3, _PAGE_BIT_DIRTY + mov r0, r3 + st.w r2[0], r3 + + /* The page table is up-to-date. Update the TLB entry as well */ + andl r0, lo(_PAGE_FLAGS_HARDWARE_MASK) + mtsr SYSREG_TLBELO, r0 + + /* MMUCR[DRP] is updated automatically, so let's go... */ + tlbw + + popm r0-r3 + rete + +do_fpe_ll: + sub sp, 4 + stmts --sp, r0-lr + rcall save_full_context_ex + unmask_interrupts + mov r12, 26 + mov r11, sp + rcall do_fpe + rjmp ret_from_exception + +ret_from_exception: + mask_interrupts + lddsp r4, sp[REG_SR] + andh r4, (MODE_MASK >> 16), COH + brne fault_resume_kernel + + get_thread_info r0 + ld.w r1, r0[TI_flags] + andl r1, _TIF_WORK_MASK, COH + brne fault_exit_work + +fault_resume_user: + popm r8-r9 + mask_exceptions + mtsr SYSREG_RAR_EX, r8 + mtsr SYSREG_RSR_EX, r9 + ldmts sp++, r0-lr + sub sp, -4 + rete + +fault_resume_kernel: +#ifdef CONFIG_PREEMPT + get_thread_info r0 + ld.w r2, r0[TI_preempt_count] + cp.w r2, 0 + brne 1f + ld.w r1, r0[TI_flags] + bld r1, TIF_NEED_RESCHED + brcc 1f + lddsp r4, sp[REG_SR] + bld r4, SYSREG_GM_OFFSET + brcs 1f + rcall preempt_schedule_irq +1: +#endif + + popm r8-r9 + mask_exceptions + mfsr r1, SYSREG_SR + mtsr SYSREG_RAR_EX, r8 + mtsr SYSREG_RSR_EX, r9 + popm lr + sub sp, -4 /* ignore SP */ + popm r0-r12 + sub sp, -4 /* ignore r12_orig */ + rete + +irq_exit_work: + /* Switch to exception mode so that we can share the same code. */ + mfsr r8, SYSREG_SR + cbr r8, SYSREG_M0_OFFSET + orh r8, hi(SYSREG_BIT(M1) | SYSREG_BIT(M2)) + mtsr SYSREG_SR, r8 + sub pc, -2 + get_thread_info r0 + ld.w r1, r0[TI_flags] + +fault_exit_work: + bld r1, TIF_NEED_RESCHED + brcc 1f + unmask_interrupts + rcall schedule + mask_interrupts + ld.w r1, r0[TI_flags] + rjmp fault_exit_work + +1: mov r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK + tst r1, r2 + breq 2f + unmask_interrupts + mov r12, sp + mov r11, r0 + rcall do_notify_resume + mask_interrupts + ld.w r1, r0[TI_flags] + rjmp fault_exit_work + +2: bld r1, TIF_BREAKPOINT + brcc fault_resume_user + mfsr r3, SYSREG_TLBEHI + lddsp r2, sp[REG_PC] + andl r3, 0xff, COH + lsl r3, 1 + sbr r3, 30 + sbr r3, 0 + mtdr DBGREG_BWA2A, r2 + mtdr DBGREG_BWC2A, r3 + rjmp fault_resume_user + + /* If we get a debug trap from privileged context we end up here */ +handle_debug_priv: + /* Fix up LR and SP in regs. r11 contains the mode we came from */ + mfsr r8, SYSREG_SR + mov r9, r8 + andh r8, hi(~MODE_MASK) + or r8, r11 + mtsr SYSREG_SR, r8 + sub pc, -2 + stdsp sp[REG_LR], lr + mtsr SYSREG_SR, r9 + sub pc, -2 + sub r10, sp, -FRAME_SIZE_FULL + stdsp sp[REG_SP], r10 + mov r12, sp + rcall do_debug_priv + + /* Now, put everything back */ + ssrf SR_EM_BIT + popm r10, r11 + mtsr SYSREG_RAR_DBG, r10 + mtsr SYSREG_RSR_DBG, r11 + mfsr r8, SYSREG_SR + mov r9, r8 + andh r8, hi(~MODE_MASK) + andh r11, hi(MODE_MASK) + or r8, r11 + mtsr SYSREG_SR, r8 + sub pc, -2 + popm lr + mtsr SYSREG_SR, r9 + sub pc, -2 + sub sp, -4 /* skip SP */ + popm r0-r12 + sub sp, -4 + retd + + /* + * At this point, everything is masked, that is, interrupts, + * exceptions and debugging traps. We might get called from + * interrupt or exception context in some rare cases, but this + * will be taken care of by do_debug(), so we're not going to + * do a 100% correct context save here. + */ +handle_debug: + sub sp, 4 /* r12_orig */ + stmts --sp, r0-lr + mfsr r10, SYSREG_RAR_DBG + mfsr r11, SYSREG_RSR_DBG + unmask_exceptions + pushm r10,r11 + andh r11, (MODE_MASK >> 16), COH + brne handle_debug_priv + + mov r12, sp + rcall do_debug + + lddsp r10, sp[REG_SR] + andh r10, (MODE_MASK >> 16), COH + breq debug_resume_user + +debug_restore_all: + popm r10,r11 + mask_exceptions + mtsr SYSREG_RSR_DBG, r11 + mtsr SYSREG_RAR_DBG, r10 + ldmts sp++, r0-lr + sub sp, -4 + retd + +debug_resume_user: + get_thread_info r0 + mask_interrupts + + ld.w r1, r0[TI_flags] + andl r1, _TIF_DBGWORK_MASK, COH + breq debug_restore_all + +1: bld r1, TIF_NEED_RESCHED + brcc 2f + unmask_interrupts + rcall schedule + mask_interrupts + ld.w r1, r0[TI_flags] + rjmp 1b + +2: mov r2, _TIF_SIGPENDING | _TIF_RESTORE_SIGMASK + tst r1, r2 + breq 3f + unmask_interrupts + mov r12, sp + mov r11, r0 + rcall do_notify_resume + mask_interrupts + ld.w r1, r0[TI_flags] + rjmp 1b + +3: bld r1, TIF_SINGLE_STEP + brcc debug_restore_all + mfdr r2, DBGREG_DC + sbr r2, DC_SS_BIT + mtdr DBGREG_DC, r2 + rjmp debug_restore_all + + .set rsr_int0, SYSREG_RSR_INT0 + .set rsr_int1, SYSREG_RSR_INT1 + .set rsr_int2, SYSREG_RSR_INT2 + .set rsr_int3, SYSREG_RSR_INT3 + .set rar_int0, SYSREG_RAR_INT0 + .set rar_int1, SYSREG_RAR_INT1 + .set rar_int2, SYSREG_RAR_INT2 + .set rar_int3, SYSREG_RAR_INT3 + + .macro IRQ_LEVEL level + .type irq_level\level, @function +irq_level\level: + sub sp, 4 /* r12_orig */ + stmts --sp,r0-lr + mfsr r8, rar_int\level + mfsr r9, rsr_int\level + pushm r8-r9 + + mov r11, sp + mov r12, \level + + rcall do_IRQ + + lddsp r4, sp[REG_SR] + andh r4, (MODE_MASK >> 16), COH +#ifdef CONFIG_PREEMPT + brne 2f +#else + brne 1f +#endif + + get_thread_info r0 + ld.w r1, r0[TI_flags] + andl r1, _TIF_WORK_MASK, COH + brne irq_exit_work + +1: popm r8-r9 + mtsr rar_int\level, r8 + mtsr rsr_int\level, r9 + ldmts sp++,r0-lr + sub sp, -4 /* ignore r12_orig */ + rete + +#ifdef CONFIG_PREEMPT +2: + get_thread_info r0 + ld.w r2, r0[TI_preempt_count] + cp.w r2, 0 + brne 1b + ld.w r1, r0[TI_flags] + bld r1, TIF_NEED_RESCHED + brcc 1b + lddsp r4, sp[REG_SR] + bld r4, SYSREG_GM_OFFSET + brcs 1b + rcall preempt_schedule_irq + rjmp 1b +#endif + .endm + + .section .irq.text,"ax",@progbits + + .global irq_level0 + .global irq_level1 + .global irq_level2 + .global irq_level3 + IRQ_LEVEL 0 + IRQ_LEVEL 1 + IRQ_LEVEL 2 + IRQ_LEVEL 3
diff --git a/arch/avr32/kernel/head.S b/arch/avr32/kernel/head.S new file mode 100644 index 0000000..773b7ad --- /dev/null +++ b/arch/avr32/kernel/head.S
@@ -0,0 +1,45 @@ +/* + * Non-board-specific low-level startup code + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/linkage.h> + +#include <asm/page.h> +#include <asm/thread_info.h> +#include <asm/sysreg.h> + + .section .init.text,"ax" + .global kernel_entry +kernel_entry: + /* Initialize status register */ + lddpc r0, init_sr + mtsr SYSREG_SR, r0 + + /* Set initial stack pointer */ + lddpc sp, stack_addr + sub sp, -THREAD_SIZE + +#ifdef CONFIG_FRAME_POINTER + /* Mark last stack frame */ + mov lr, 0 + mov r7, 0 +#endif + + /* Set up the PIO, SDRAM controller, early printk, etc. */ + rcall board_early_init + + /* Start the show */ + lddpc pc, kernel_start_addr + + .align 2 +init_sr: + .long 0x007f0000 /* Supervisor mode, everything masked */ +stack_addr: + .long init_thread_union +kernel_start_addr: + .long start_kernel
diff --git a/arch/avr32/kernel/init_task.c b/arch/avr32/kernel/init_task.c new file mode 100644 index 0000000..effcacf --- /dev/null +++ b/arch/avr32/kernel/init_task.c
@@ -0,0 +1,38 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/module.h> +#include <linux/fs.h> +#include <linux/sched.h> +#include <linux/init_task.h> +#include <linux/mqueue.h> + +#include <asm/pgtable.h> + +static struct fs_struct init_fs = INIT_FS; +static struct files_struct init_files = INIT_FILES; +static struct signal_struct init_signals = INIT_SIGNALS(init_signals); +static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); +struct mm_struct init_mm = INIT_MM(init_mm); + +EXPORT_SYMBOL(init_mm); + +/* + * Initial thread structure. Must be aligned on an 8192-byte boundary. + */ +union thread_union init_thread_union + __attribute__((__section__(".data.init_task"))) = + { INIT_THREAD_INFO(init_task) }; + +/* + * Initial task structure. + * + * All other task structs will be allocated on slabs in fork.c + */ +struct task_struct init_task = INIT_TASK(init_task); + +EXPORT_SYMBOL(init_task);
diff --git a/arch/avr32/kernel/irq.c b/arch/avr32/kernel/irq.c new file mode 100644 index 0000000..856f354 --- /dev/null +++ b/arch/avr32/kernel/irq.c
@@ -0,0 +1,71 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * Based on arch/i386/kernel/irq.c + * Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This file contains the code used by various IRQ handling routines: + * asking for different IRQ's should be done through these routines + * instead of just grabbing them. Thus setups with different IRQ numbers + * shouldn't result in any weird surprises, and installing new handlers + * should be easier. + * + * IRQ's are in fact implemented a bit like signal handlers for the kernel. + * Naturally it's not a 1:1 relation, but there are similarities. + */ + +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/kernel_stat.h> +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <linux/sysdev.h> + +/* + * 'what should we do if we get a hw irq event on an illegal vector'. + * each architecture has to answer this themselves. + */ +void ack_bad_irq(unsigned int irq) +{ + printk("unexpected IRQ %u\n", irq); +} + +#ifdef CONFIG_PROC_FS +int show_interrupts(struct seq_file *p, void *v) +{ + int i = *(loff_t *)v, cpu; + struct irqaction *action; + unsigned long flags; + + if (i == 0) { + seq_puts(p, " "); + for_each_online_cpu(cpu) + seq_printf(p, "CPU%d ", cpu); + seq_putc(p, '\n'); + } + + if (i < NR_IRQS) { + spin_lock_irqsave(&irq_desc[i].lock, flags); + action = irq_desc[i].action; + if (!action) + goto unlock; + + seq_printf(p, "%3d: ", i); + for_each_online_cpu(cpu) + seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[i]); + seq_printf(p, " %s", action->name); + for (action = action->next; action; action = action->next) + seq_printf(p, ", %s", action->name); + + seq_putc(p, '\n'); + unlock: + spin_unlock_irqrestore(&irq_desc[i].lock, flags); + } + + return 0; +} +#endif
diff --git a/arch/avr32/kernel/kprobes.c b/arch/avr32/kernel/kprobes.c new file mode 100644 index 0000000..6caf9e8 --- /dev/null +++ b/arch/avr32/kernel/kprobes.c
@@ -0,0 +1,270 @@ +/* + * Kernel Probes (KProbes) + * + * Copyright (C) 2005-2006 Atmel Corporation + * + * Based on arch/ppc64/kernel/kprobes.c + * Copyright (C) IBM Corporation, 2002, 2004 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kprobes.h> +#include <linux/ptrace.h> + +#include <asm/cacheflush.h> +#include <asm/kdebug.h> +#include <asm/ocd.h> + +DEFINE_PER_CPU(struct kprobe *, current_kprobe); +static unsigned long kprobe_status; +static struct pt_regs jprobe_saved_regs; + +int __kprobes arch_prepare_kprobe(struct kprobe *p) +{ + int ret = 0; + + if ((unsigned long)p->addr & 0x01) { + printk("Attempt to register kprobe at an unaligned address\n"); + ret = -EINVAL; + } + + /* XXX: Might be a good idea to check if p->addr is a valid + * kernel address as well... */ + + if (!ret) { + pr_debug("copy kprobe at %p\n", p->addr); + memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t)); + p->opcode = *p->addr; + } + + return ret; +} + +void __kprobes arch_arm_kprobe(struct kprobe *p) +{ + pr_debug("arming kprobe at %p\n", p->addr); + *p->addr = BREAKPOINT_INSTRUCTION; + flush_icache_range((unsigned long)p->addr, + (unsigned long)p->addr + sizeof(kprobe_opcode_t)); +} + +void __kprobes arch_disarm_kprobe(struct kprobe *p) +{ + pr_debug("disarming kprobe at %p\n", p->addr); + *p->addr = p->opcode; + flush_icache_range((unsigned long)p->addr, + (unsigned long)p->addr + sizeof(kprobe_opcode_t)); +} + +static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs) +{ + unsigned long dc; + + pr_debug("preparing to singlestep over %p (PC=%08lx)\n", + p->addr, regs->pc); + + BUG_ON(!(sysreg_read(SR) & SYSREG_BIT(SR_D))); + + dc = __mfdr(DBGREG_DC); + dc |= DC_SS; + __mtdr(DBGREG_DC, dc); + + /* + * We must run the instruction from its original location + * since it may actually reference PC. + * + * TODO: Do the instruction replacement directly in icache. + */ + *p->addr = p->opcode; + flush_icache_range((unsigned long)p->addr, + (unsigned long)p->addr + sizeof(kprobe_opcode_t)); +} + +static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs) +{ + unsigned long dc; + + pr_debug("resuming execution at PC=%08lx\n", regs->pc); + + dc = __mfdr(DBGREG_DC); + dc &= ~DC_SS; + __mtdr(DBGREG_DC, dc); + + *p->addr = BREAKPOINT_INSTRUCTION; + flush_icache_range((unsigned long)p->addr, + (unsigned long)p->addr + sizeof(kprobe_opcode_t)); +} + +static void __kprobes set_current_kprobe(struct kprobe *p) +{ + __get_cpu_var(current_kprobe) = p; +} + +static int __kprobes kprobe_handler(struct pt_regs *regs) +{ + struct kprobe *p; + void *addr = (void *)regs->pc; + int ret = 0; + + pr_debug("kprobe_handler: kprobe_running=%d\n", + kprobe_running()); + + /* + * We don't want to be preempted for the entire + * duration of kprobe processing + */ + preempt_disable(); + + /* Check that we're not recursing */ + if (kprobe_running()) { + p = get_kprobe(addr); + if (p) { + if (kprobe_status == KPROBE_HIT_SS) { + printk("FIXME: kprobe hit while single-stepping!\n"); + goto no_kprobe; + } + + printk("FIXME: kprobe hit while handling another kprobe\n"); + goto no_kprobe; + } else { + p = kprobe_running(); + if (p->break_handler && p->break_handler(p, regs)) + goto ss_probe; + } + /* If it's not ours, can't be delete race, (we hold lock). */ + goto no_kprobe; + } + + p = get_kprobe(addr); + if (!p) + goto no_kprobe; + + kprobe_status = KPROBE_HIT_ACTIVE; + set_current_kprobe(p); + if (p->pre_handler && p->pre_handler(p, regs)) + /* handler has already set things up, so skip ss setup */ + return 1; + +ss_probe: + prepare_singlestep(p, regs); + kprobe_status = KPROBE_HIT_SS; + return 1; + +no_kprobe: + return ret; +} + +static int __kprobes post_kprobe_handler(struct pt_regs *regs) +{ + struct kprobe *cur = kprobe_running(); + + pr_debug("post_kprobe_handler, cur=%p\n", cur); + + if (!cur) + return 0; + + if (cur->post_handler) { + kprobe_status = KPROBE_HIT_SSDONE; + cur->post_handler(cur, regs, 0); + } + + resume_execution(cur, regs); + reset_current_kprobe(); + preempt_enable_no_resched(); + + return 1; +} + +static int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) +{ + struct kprobe *cur = kprobe_running(); + + pr_debug("kprobe_fault_handler: trapnr=%d\n", trapnr); + + if (cur->fault_handler && cur->fault_handler(cur, regs, trapnr)) + return 1; + + if (kprobe_status & KPROBE_HIT_SS) { + resume_execution(cur, regs); + preempt_enable_no_resched(); + } + return 0; +} + +/* + * Wrapper routine to for handling exceptions. + */ +int __kprobes kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data) +{ + struct die_args *args = (struct die_args *)data; + int ret = NOTIFY_DONE; + + pr_debug("kprobe_exceptions_notify: val=%lu, data=%p\n", + val, data); + + switch (val) { + case DIE_BREAKPOINT: + if (kprobe_handler(args->regs)) + ret = NOTIFY_STOP; + break; + case DIE_SSTEP: + if (post_kprobe_handler(args->regs)) + ret = NOTIFY_STOP; + break; + case DIE_FAULT: + if (kprobe_running() + && kprobe_fault_handler(args->regs, args->trapnr)) + ret = NOTIFY_STOP; + break; + default: + break; + } + + return ret; +} + +int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) +{ + struct jprobe *jp = container_of(p, struct jprobe, kp); + + memcpy(&jprobe_saved_regs, regs, sizeof(struct pt_regs)); + + /* + * TODO: We should probably save some of the stack here as + * well, since gcc may pass arguments on the stack for certain + * functions (lots of arguments, large aggregates, varargs) + */ + + /* setup return addr to the jprobe handler routine */ + regs->pc = (unsigned long)jp->entry; + return 1; +} + +void __kprobes jprobe_return(void) +{ + asm volatile("breakpoint" ::: "memory"); +} + +int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) +{ + /* + * FIXME - we should ideally be validating that we got here 'cos + * of the "trap" in jprobe_return() above, before restoring the + * saved regs... + */ + memcpy(regs, &jprobe_saved_regs, sizeof(struct pt_regs)); + return 1; +} + +int __init arch_init_kprobes(void) +{ + printk("KPROBES: Enabling monitor mode (MM|DBE)...\n"); + __mtdr(DBGREG_DC, DC_MM | DC_DBE); + + /* TODO: Register kretprobe trampoline */ + return 0; +}
diff --git a/arch/avr32/kernel/module.c b/arch/avr32/kernel/module.c new file mode 100644 index 0000000..dfc32f2 --- /dev/null +++ b/arch/avr32/kernel/module.c
@@ -0,0 +1,324 @@ +/* + * AVR32-specific kernel module loader + * + * Copyright (C) 2005-2006 Atmel Corporation + * + * GOT initialization parts are based on the s390 version + * Copyright (C) 2002, 2003 IBM Deutschland Entwicklung GmbH, + * IBM Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/moduleloader.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/elf.h> +#include <linux/vmalloc.h> + +void *module_alloc(unsigned long size) +{ + if (size == 0) + return NULL; + return vmalloc(size); +} + +void module_free(struct module *mod, void *module_region) +{ + vfree(mod->arch.syminfo); + mod->arch.syminfo = NULL; + + vfree(module_region); + /* FIXME: if module_region == mod->init_region, trim exception + * table entries. */ +} + +static inline int check_rela(Elf32_Rela *rela, struct module *module, + char *strings, Elf32_Sym *symbols) +{ + struct mod_arch_syminfo *info; + + info = module->arch.syminfo + ELF32_R_SYM(rela->r_info); + switch (ELF32_R_TYPE(rela->r_info)) { + case R_AVR32_GOT32: + case R_AVR32_GOT16: + case R_AVR32_GOT8: + case R_AVR32_GOT21S: + case R_AVR32_GOT18SW: /* mcall */ + case R_AVR32_GOT16S: /* ld.w */ + if (rela->r_addend != 0) { + printk(KERN_ERR + "GOT relocation against %s at offset %u with addend\n", + strings + symbols[ELF32_R_SYM(rela->r_info)].st_name, + rela->r_offset); + return -ENOEXEC; + } + if (info->got_offset == -1UL) { + info->got_offset = module->arch.got_size; + module->arch.got_size += sizeof(void *); + } + pr_debug("GOT[%3lu] %s\n", info->got_offset, + strings + symbols[ELF32_R_SYM(rela->r_info)].st_name); + break; + } + + return 0; +} + +int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, + char *secstrings, struct module *module) +{ + Elf32_Shdr *symtab; + Elf32_Sym *symbols; + Elf32_Rela *rela; + char *strings; + int nrela, i, j; + int ret; + + /* Find the symbol table */ + symtab = NULL; + for (i = 0; i < hdr->e_shnum; i++) + switch (sechdrs[i].sh_type) { + case SHT_SYMTAB: + symtab = &sechdrs[i]; + break; + } + if (!symtab) { + printk(KERN_ERR "module %s: no symbol table\n", module->name); + return -ENOEXEC; + } + + /* Allocate room for one syminfo structure per symbol. */ + module->arch.nsyms = symtab->sh_size / sizeof(Elf_Sym); + module->arch.syminfo = vmalloc(module->arch.nsyms + * sizeof(struct mod_arch_syminfo)); + if (!module->arch.syminfo) + return -ENOMEM; + + symbols = (void *)hdr + symtab->sh_offset; + strings = (void *)hdr + sechdrs[symtab->sh_link].sh_offset; + for (i = 0; i < module->arch.nsyms; i++) { + if (symbols[i].st_shndx == SHN_UNDEF && + strcmp(strings + symbols[i].st_name, + "_GLOBAL_OFFSET_TABLE_") == 0) + /* "Define" it as absolute. */ + symbols[i].st_shndx = SHN_ABS; + module->arch.syminfo[i].got_offset = -1UL; + module->arch.syminfo[i].got_initialized = 0; + } + + /* Allocate GOT entries for symbols that need it. */ + module->arch.got_size = 0; + for (i = 0; i < hdr->e_shnum; i++) { + if (sechdrs[i].sh_type != SHT_RELA) + continue; + nrela = sechdrs[i].sh_size / sizeof(Elf32_Rela); + rela = (void *)hdr + sechdrs[i].sh_offset; + for (j = 0; j < nrela; j++) { + ret = check_rela(rela + j, module, + strings, symbols); + if (ret) + goto out_free_syminfo; + } + } + + /* + * Increase core size to make room for GOT and set start + * offset for GOT. + */ + module->core_size = ALIGN(module->core_size, 4); + module->arch.got_offset = module->core_size; + module->core_size += module->arch.got_size; + + return 0; + +out_free_syminfo: + vfree(module->arch.syminfo); + module->arch.syminfo = NULL; + + return ret; +} + +static inline int reloc_overflow(struct module *module, const char *reloc_name, + Elf32_Addr relocation) +{ + printk(KERN_ERR "module %s: Value %lx does not fit relocation %s\n", + module->name, (unsigned long)relocation, reloc_name); + return -ENOEXEC; +} + +#define get_u16(loc) (*((uint16_t *)loc)) +#define put_u16(loc, val) (*((uint16_t *)loc) = (val)) + +int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab, + unsigned int symindex, unsigned int relindex, + struct module *module) +{ + Elf32_Shdr *symsec = sechdrs + symindex; + Elf32_Shdr *relsec = sechdrs + relindex; + Elf32_Shdr *dstsec = sechdrs + relsec->sh_info; + Elf32_Rela *rel = (void *)relsec->sh_addr; + unsigned int i; + int ret = 0; + + for (i = 0; i < relsec->sh_size / sizeof(Elf32_Rela); i++, rel++) { + struct mod_arch_syminfo *info; + Elf32_Sym *sym; + Elf32_Addr relocation; + uint32_t *location; + uint32_t value; + + location = (void *)dstsec->sh_addr + rel->r_offset; + sym = (Elf32_Sym *)symsec->sh_addr + ELF32_R_SYM(rel->r_info); + relocation = sym->st_value + rel->r_addend; + + info = module->arch.syminfo + ELF32_R_SYM(rel->r_info); + + /* Initialize GOT entry if necessary */ + switch (ELF32_R_TYPE(rel->r_info)) { + case R_AVR32_GOT32: + case R_AVR32_GOT16: + case R_AVR32_GOT8: + case R_AVR32_GOT21S: + case R_AVR32_GOT18SW: + case R_AVR32_GOT16S: + if (!info->got_initialized) { + Elf32_Addr *gotent; + + gotent = (module->module_core + + module->arch.got_offset + + info->got_offset); + *gotent = relocation; + info->got_initialized = 1; + } + + relocation = info->got_offset; + break; + } + + switch (ELF32_R_TYPE(rel->r_info)) { + case R_AVR32_32: + case R_AVR32_32_CPENT: + *location = relocation; + break; + case R_AVR32_22H_PCREL: + relocation -= (Elf32_Addr)location; + if ((relocation & 0xffe00001) != 0 + && (relocation & 0xffc00001) != 0xffc00000) + return reloc_overflow(module, + "R_AVR32_22H_PCREL", + relocation); + relocation >>= 1; + + value = *location; + value = ((value & 0xe1ef0000) + | (relocation & 0xffff) + | ((relocation & 0x10000) << 4) + | ((relocation & 0x1e0000) << 8)); + *location = value; + break; + case R_AVR32_11H_PCREL: + relocation -= (Elf32_Addr)location; + if ((relocation & 0xfffffc01) != 0 + && (relocation & 0xfffff801) != 0xfffff800) + return reloc_overflow(module, + "R_AVR32_11H_PCREL", + relocation); + value = get_u16(location); + value = ((value & 0xf00c) + | ((relocation & 0x1fe) << 3) + | ((relocation & 0x600) >> 9)); + put_u16(location, value); + break; + case R_AVR32_9H_PCREL: + relocation -= (Elf32_Addr)location; + if ((relocation & 0xffffff01) != 0 + && (relocation & 0xfffffe01) != 0xfffffe00) + return reloc_overflow(module, + "R_AVR32_9H_PCREL", + relocation); + value = get_u16(location); + value = ((value & 0xf00f) + | ((relocation & 0x1fe) << 3)); + put_u16(location, value); + break; + case R_AVR32_9UW_PCREL: + relocation -= ((Elf32_Addr)location) & 0xfffffffc; + if ((relocation & 0xfffffc03) != 0) + return reloc_overflow(module, + "R_AVR32_9UW_PCREL", + relocation); + value = get_u16(location); + value = ((value & 0xf80f) + | ((relocation & 0x1fc) << 2)); + put_u16(location, value); + break; + case R_AVR32_GOTPC: + /* + * R6 = PC - (PC - GOT) + * + * At this point, relocation contains the + * value of PC. Just subtract the value of + * GOT, and we're done. + */ + pr_debug("GOTPC: PC=0x%lx, got_offset=0x%lx, core=0x%p\n", + relocation, module->arch.got_offset, + module->module_core); + relocation -= ((unsigned long)module->module_core + + module->arch.got_offset); + *location = relocation; + break; + case R_AVR32_GOT18SW: + if ((relocation & 0xfffe0003) != 0 + && (relocation & 0xfffc0003) != 0xffff0000) + return reloc_overflow(module, "R_AVR32_GOT18SW", + relocation); + relocation >>= 2; + /* fall through */ + case R_AVR32_GOT16S: + if ((relocation & 0xffff8000) != 0 + && (relocation & 0xffff0000) != 0xffff0000) + return reloc_overflow(module, "R_AVR32_GOT16S", + relocation); + pr_debug("GOT reloc @ 0x%lx -> %lu\n", + rel->r_offset, relocation); + value = *location; + value = ((value & 0xffff0000) + | (relocation & 0xffff)); + *location = value; + break; + + default: + printk(KERN_ERR "module %s: Unknown relocation: %u\n", + module->name, ELF32_R_TYPE(rel->r_info)); + return -ENOEXEC; + } + } + + return ret; +} + +int apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, + unsigned int symindex, unsigned int relindex, + struct module *module) +{ + printk(KERN_ERR "module %s: REL relocations are not supported\n", + module->name); + return -ENOEXEC; +} + +int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, + struct module *module) +{ + vfree(module->arch.syminfo); + module->arch.syminfo = NULL; + + return 0; +} + +void module_arch_cleanup(struct module *module) +{ + +}
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c new file mode 100644 index 0000000..317dc50 --- /dev/null +++ b/arch/avr32/kernel/process.c
@@ -0,0 +1,276 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/sched.h> +#include <linux/module.h> +#include <linux/kallsyms.h> +#include <linux/fs.h> +#include <linux/ptrace.h> +#include <linux/reboot.h> +#include <linux/unistd.h> + +#include <asm/sysreg.h> +#include <asm/ocd.h> + +void (*pm_power_off)(void) = NULL; +EXPORT_SYMBOL(pm_power_off); + +/* + * This file handles the architecture-dependent parts of process handling.. + */ + +void cpu_idle(void) +{ + /* endless idle loop with no priority at all */ + while (1) { + /* TODO: Enter sleep mode */ + while (!need_resched()) + cpu_relax(); + preempt_enable_no_resched(); + schedule(); + preempt_disable(); + } +} + +void machine_halt(void) +{ +} + +void machine_power_off(void) +{ +} + +void machine_restart(char *cmd) +{ + __mtdr(DBGREG_DC, DC_DBE); + __mtdr(DBGREG_DC, DC_RES); + while (1) ; +} + +/* + * PC is actually discarded when returning from a system call -- the + * return address must be stored in LR. This function will make sure + * LR points to do_exit before starting the thread. + * + * Also, when returning from fork(), r12 is 0, so we must copy the + * argument as well. + * + * r0 : The argument to the main thread function + * r1 : The address of do_exit + * r2 : The address of the main thread function + */ +asmlinkage extern void kernel_thread_helper(void); +__asm__(" .type kernel_thread_helper, @function\n" + "kernel_thread_helper:\n" + " mov r12, r0\n" + " mov lr, r2\n" + " mov pc, r1\n" + " .size kernel_thread_helper, . - kernel_thread_helper"); + +int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) +{ + struct pt_regs regs; + + memset(®s, 0, sizeof(regs)); + + regs.r0 = (unsigned long)arg; + regs.r1 = (unsigned long)fn; + regs.r2 = (unsigned long)do_exit; + regs.lr = (unsigned long)kernel_thread_helper; + regs.pc = (unsigned long)kernel_thread_helper; + regs.sr = MODE_SUPERVISOR; + + return do_fork(flags | CLONE_VM | CLONE_UNTRACED, + 0, ®s, 0, NULL, NULL); +} +EXPORT_SYMBOL(kernel_thread); + +/* + * Free current thread data structures etc + */ +void exit_thread(void) +{ + /* nothing to do */ +} + +void flush_thread(void) +{ + /* nothing to do */ +} + +void release_thread(struct task_struct *dead_task) +{ + /* do nothing */ +} + +static const char *cpu_modes[] = { + "Application", "Supervisor", "Interrupt level 0", "Interrupt level 1", + "Interrupt level 2", "Interrupt level 3", "Exception", "NMI" +}; + +void show_regs(struct pt_regs *regs) +{ + unsigned long sp = regs->sp; + unsigned long lr = regs->lr; + unsigned long mode = (regs->sr & MODE_MASK) >> MODE_SHIFT; + + if (!user_mode(regs)) + sp = (unsigned long)regs + FRAME_SIZE_FULL; + + print_symbol("PC is at %s\n", instruction_pointer(regs)); + print_symbol("LR is at %s\n", lr); + printk("pc : [<%08lx>] lr : [<%08lx>] %s\n" + "sp : %08lx r12: %08lx r11: %08lx\n", + instruction_pointer(regs), + lr, print_tainted(), sp, regs->r12, regs->r11); + printk("r10: %08lx r9 : %08lx r8 : %08lx\n", + regs->r10, regs->r9, regs->r8); + printk("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n", + regs->r7, regs->r6, regs->r5, regs->r4); + printk("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n", + regs->r3, regs->r2, regs->r1, regs->r0); + printk("Flags: %c%c%c%c%c\n", + regs->sr & SR_Q ? 'Q' : 'q', + regs->sr & SR_V ? 'V' : 'v', + regs->sr & SR_N ? 'N' : 'n', + regs->sr & SR_Z ? 'Z' : 'z', + regs->sr & SR_C ? 'C' : 'c'); + printk("Mode bits: %c%c%c%c%c%c%c%c%c\n", + regs->sr & SR_H ? 'H' : 'h', + regs->sr & SR_R ? 'R' : 'r', + regs->sr & SR_J ? 'J' : 'j', + regs->sr & SR_EM ? 'E' : 'e', + regs->sr & SR_I3M ? '3' : '.', + regs->sr & SR_I2M ? '2' : '.', + regs->sr & SR_I1M ? '1' : '.', + regs->sr & SR_I0M ? '0' : '.', + regs->sr & SR_GM ? 'G' : 'g'); + printk("CPU Mode: %s\n", cpu_modes[mode]); + + show_trace(NULL, (unsigned long *)sp, regs); +} +EXPORT_SYMBOL(show_regs); + +/* Fill in the fpu structure for a core dump. This is easy -- we don't have any */ +int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu) +{ + /* Not valid */ + return 0; +} + +asmlinkage void ret_from_fork(void); + +int copy_thread(int nr, unsigned long clone_flags, unsigned long usp, + unsigned long unused, + struct task_struct *p, struct pt_regs *regs) +{ + struct pt_regs *childregs; + + childregs = ((struct pt_regs *)(THREAD_SIZE + (unsigned long)p->thread_info)) - 1; + *childregs = *regs; + + if (user_mode(regs)) + childregs->sp = usp; + else + childregs->sp = (unsigned long)p->thread_info + THREAD_SIZE; + + childregs->r12 = 0; /* Set return value for child */ + + p->thread.cpu_context.sr = MODE_SUPERVISOR | SR_GM; + p->thread.cpu_context.ksp = (unsigned long)childregs; + p->thread.cpu_context.pc = (unsigned long)ret_from_fork; + + return 0; +} + +/* r12-r8 are dummy parameters to force the compiler to use the stack */ +asmlinkage int sys_fork(struct pt_regs *regs) +{ + return do_fork(SIGCHLD, regs->sp, regs, 0, NULL, NULL); +} + +asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, + unsigned long parent_tidptr, + unsigned long child_tidptr, struct pt_regs *regs) +{ + if (!newsp) + newsp = regs->sp; + return do_fork(clone_flags, newsp, regs, 0, + (int __user *)parent_tidptr, + (int __user *)child_tidptr); +} + +asmlinkage int sys_vfork(struct pt_regs *regs) +{ + return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->sp, regs, + 0, NULL, NULL); +} + +asmlinkage int sys_execve(char __user *ufilename, char __user *__user *uargv, + char __user *__user *uenvp, struct pt_regs *regs) +{ + int error; + char *filename; + + filename = getname(ufilename); + error = PTR_ERR(filename); + if (IS_ERR(filename)) + goto out; + + error = do_execve(filename, uargv, uenvp, regs); + if (error == 0) + current->ptrace &= ~PT_DTRACE; + putname(filename); + +out: + return error; +} + + +/* + * This function is supposed to answer the question "who called + * schedule()?" + */ +unsigned long get_wchan(struct task_struct *p) +{ + unsigned long pc; + unsigned long stack_page; + + if (!p || p == current || p->state == TASK_RUNNING) + return 0; + + stack_page = (unsigned long)p->thread_info; + BUG_ON(!stack_page); + + /* + * The stored value of PC is either the address right after + * the call to __switch_to() or ret_from_fork. + */ + pc = thread_saved_pc(p); + if (in_sched_functions(pc)) { +#ifdef CONFIG_FRAME_POINTER + unsigned long fp = p->thread.cpu_context.r7; + BUG_ON(fp < stack_page || fp > (THREAD_SIZE + stack_page)); + pc = *(unsigned long *)fp; +#else + /* + * We depend on the frame size of schedule here, which + * is actually quite ugly. It might be possible to + * determine the frame size automatically at build + * time by doing this: + * - compile sched.c + * - disassemble the resulting sched.o + * - look for 'sub sp,??' shortly after '<schedule>:' + */ + unsigned long sp = p->thread.cpu_context.ksp + 16; + BUG_ON(sp < stack_page || sp > (THREAD_SIZE + stack_page)); + pc = *(unsigned long *)sp; +#endif + } + + return pc; +}
diff --git a/arch/avr32/kernel/ptrace.c b/arch/avr32/kernel/ptrace.c new file mode 100644 index 0000000..3c89e59 --- /dev/null +++ b/arch/avr32/kernel/ptrace.c
@@ -0,0 +1,371 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#undef DEBUG +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/smp_lock.h> +#include <linux/ptrace.h> +#include <linux/errno.h> +#include <linux/user.h> +#include <linux/security.h> +#include <linux/unistd.h> +#include <linux/notifier.h> + +#include <asm/traps.h> +#include <asm/uaccess.h> +#include <asm/ocd.h> +#include <asm/mmu_context.h> +#include <asm/kdebug.h> + +static struct pt_regs *get_user_regs(struct task_struct *tsk) +{ + return (struct pt_regs *)((unsigned long) tsk->thread_info + + THREAD_SIZE - sizeof(struct pt_regs)); +} + +static void ptrace_single_step(struct task_struct *tsk) +{ + pr_debug("ptrace_single_step: pid=%u, SR=0x%08lx\n", + tsk->pid, tsk->thread.cpu_context.sr); + if (!(tsk->thread.cpu_context.sr & SR_D)) { + /* + * Set a breakpoint at the current pc to force the + * process into debug mode. The syscall/exception + * exit code will set a breakpoint at the return + * address when this flag is set. + */ + pr_debug("ptrace_single_step: Setting TIF_BREAKPOINT\n"); + set_tsk_thread_flag(tsk, TIF_BREAKPOINT); + } + + /* The monitor code will do the actual step for us */ + set_tsk_thread_flag(tsk, TIF_SINGLE_STEP); +} + +/* + * Called by kernel/ptrace.c when detaching + * + * Make sure any single step bits, etc. are not set + */ +void ptrace_disable(struct task_struct *child) +{ + clear_tsk_thread_flag(child, TIF_SINGLE_STEP); +} + +/* + * Handle hitting a breakpoint + */ +static void ptrace_break(struct task_struct *tsk, struct pt_regs *regs) +{ + siginfo_t info; + + info.si_signo = SIGTRAP; + info.si_errno = 0; + info.si_code = TRAP_BRKPT; + info.si_addr = (void __user *)instruction_pointer(regs); + + pr_debug("ptrace_break: Sending SIGTRAP to PID %u (pc = 0x%p)\n", + tsk->pid, info.si_addr); + force_sig_info(SIGTRAP, &info, tsk); +} + +/* + * Read the word at offset "offset" into the task's "struct user". We + * actually access the pt_regs struct stored on the kernel stack. + */ +static int ptrace_read_user(struct task_struct *tsk, unsigned long offset, + unsigned long __user *data) +{ + unsigned long *regs; + unsigned long value; + + pr_debug("ptrace_read_user(%p, %#lx, %p)\n", + tsk, offset, data); + + if (offset & 3 || offset >= sizeof(struct user)) { + printk("ptrace_read_user: invalid offset 0x%08lx\n", offset); + return -EIO; + } + + regs = (unsigned long *)get_user_regs(tsk); + + value = 0; + if (offset < sizeof(struct pt_regs)) + value = regs[offset / sizeof(regs[0])]; + + return put_user(value, data); +} + +/* + * Write the word "value" to offset "offset" into the task's "struct + * user". We actually access the pt_regs struct stored on the kernel + * stack. + */ +static int ptrace_write_user(struct task_struct *tsk, unsigned long offset, + unsigned long value) +{ + unsigned long *regs; + + if (offset & 3 || offset >= sizeof(struct user)) { + printk("ptrace_write_user: invalid offset 0x%08lx\n", offset); + return -EIO; + } + + if (offset >= sizeof(struct pt_regs)) + return 0; + + regs = (unsigned long *)get_user_regs(tsk); + regs[offset / sizeof(regs[0])] = value; + + return 0; +} + +static int ptrace_getregs(struct task_struct *tsk, void __user *uregs) +{ + struct pt_regs *regs = get_user_regs(tsk); + + return copy_to_user(uregs, regs, sizeof(*regs)) ? -EFAULT : 0; +} + +static int ptrace_setregs(struct task_struct *tsk, const void __user *uregs) +{ + struct pt_regs newregs; + int ret; + + ret = -EFAULT; + if (copy_from_user(&newregs, uregs, sizeof(newregs)) == 0) { + struct pt_regs *regs = get_user_regs(tsk); + + ret = -EINVAL; + if (valid_user_regs(&newregs)) { + *regs = newregs; + ret = 0; + } + } + + return ret; +} + +long arch_ptrace(struct task_struct *child, long request, long addr, long data) +{ + unsigned long tmp; + int ret; + + pr_debug("arch_ptrace(%ld, %ld, %#lx, %#lx)\n", + request, child->pid, addr, data); + + pr_debug("ptrace: Enabling monitor mode...\n"); + __mtdr(DBGREG_DC, __mfdr(DBGREG_DC) | DC_MM | DC_DBE); + + switch (request) { + /* Read the word at location addr in the child process */ + case PTRACE_PEEKTEXT: + case PTRACE_PEEKDATA: + ret = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); + if (ret == sizeof(tmp)) + ret = put_user(tmp, (unsigned long __user *)data); + else + ret = -EIO; + break; + + case PTRACE_PEEKUSR: + ret = ptrace_read_user(child, addr, + (unsigned long __user *)data); + break; + + /* Write the word in data at location addr */ + case PTRACE_POKETEXT: + case PTRACE_POKEDATA: + ret = access_process_vm(child, addr, &data, sizeof(data), 1); + if (ret == sizeof(data)) + ret = 0; + else + ret = -EIO; + break; + + case PTRACE_POKEUSR: + ret = ptrace_write_user(child, addr, data); + break; + + /* continue and stop at next (return from) syscall */ + case PTRACE_SYSCALL: + /* restart after signal */ + case PTRACE_CONT: + ret = -EIO; + if (!valid_signal(data)) + break; + if (request == PTRACE_SYSCALL) + set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + else + clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + child->exit_code = data; + /* XXX: Are we sure no breakpoints are active here? */ + wake_up_process(child); + ret = 0; + break; + + /* + * Make the child exit. Best I can do is send it a + * SIGKILL. Perhaps it should be put in the status that it + * wants to exit. + */ + case PTRACE_KILL: + ret = 0; + if (child->exit_state == EXIT_ZOMBIE) + break; + child->exit_code = SIGKILL; + wake_up_process(child); + break; + + /* + * execute single instruction. + */ + case PTRACE_SINGLESTEP: + ret = -EIO; + if (!valid_signal(data)) + break; + clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + ptrace_single_step(child); + child->exit_code = data; + wake_up_process(child); + ret = 0; + break; + + /* Detach a process that was attached */ + case PTRACE_DETACH: + ret = ptrace_detach(child, data); + break; + + case PTRACE_GETREGS: + ret = ptrace_getregs(child, (void __user *)data); + break; + + case PTRACE_SETREGS: + ret = ptrace_setregs(child, (const void __user *)data); + break; + + default: + ret = ptrace_request(child, request, addr, data); + break; + } + + pr_debug("sys_ptrace returning %d (DC = 0x%08lx)\n", ret, __mfdr(DBGREG_DC)); + return ret; +} + +asmlinkage void syscall_trace(void) +{ + pr_debug("syscall_trace called\n"); + if (!test_thread_flag(TIF_SYSCALL_TRACE)) + return; + if (!(current->ptrace & PT_PTRACED)) + return; + + pr_debug("syscall_trace: notifying parent\n"); + /* The 0x80 provides a way for the tracing parent to + * distinguish between a syscall stop and SIGTRAP delivery */ + ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) + ? 0x80 : 0)); + + /* + * this isn't the same as continuing with a signal, but it + * will do for normal use. strace only continues with a + * signal if the stopping signal is not SIGTRAP. -brl + */ + if (current->exit_code) { + pr_debug("syscall_trace: sending signal %d to PID %u\n", + current->exit_code, current->pid); + send_sig(current->exit_code, current, 1); + current->exit_code = 0; + } +} + +asmlinkage void do_debug_priv(struct pt_regs *regs) +{ + unsigned long dc, ds; + unsigned long die_val; + + ds = __mfdr(DBGREG_DS); + + pr_debug("do_debug_priv: pc = %08lx, ds = %08lx\n", regs->pc, ds); + + if (ds & DS_SSS) + die_val = DIE_SSTEP; + else + die_val = DIE_BREAKPOINT; + + if (notify_die(die_val, regs, 0, SIGTRAP) == NOTIFY_STOP) + return; + + if (likely(ds & DS_SSS)) { + extern void itlb_miss(void); + extern void tlb_miss_common(void); + struct thread_info *ti; + + dc = __mfdr(DBGREG_DC); + dc &= ~DC_SS; + __mtdr(DBGREG_DC, dc); + + ti = current_thread_info(); + ti->flags |= _TIF_BREAKPOINT; + + /* The TLB miss handlers don't check thread flags */ + if ((regs->pc >= (unsigned long)&itlb_miss) + && (regs->pc <= (unsigned long)&tlb_miss_common)) { + __mtdr(DBGREG_BWA2A, sysreg_read(RAR_EX)); + __mtdr(DBGREG_BWC2A, 0x40000001 | (get_asid() << 1)); + } + + /* + * If we're running in supervisor mode, the breakpoint + * will take us where we want directly, no need to + * single step. + */ + if ((regs->sr & MODE_MASK) != MODE_SUPERVISOR) + ti->flags |= TIF_SINGLE_STEP; + } else { + panic("Unable to handle debug trap at pc = %08lx\n", + regs->pc); + } +} + +/* + * Handle breakpoints, single steps and other debuggy things. To keep + * things simple initially, we run with interrupts and exceptions + * disabled all the time. + */ +asmlinkage void do_debug(struct pt_regs *regs) +{ + unsigned long dc, ds; + + ds = __mfdr(DBGREG_DS); + pr_debug("do_debug: pc = %08lx, ds = %08lx\n", regs->pc, ds); + + if (test_thread_flag(TIF_BREAKPOINT)) { + pr_debug("TIF_BREAKPOINT set\n"); + /* We're taking care of it */ + clear_thread_flag(TIF_BREAKPOINT); + __mtdr(DBGREG_BWC2A, 0); + } + + if (test_thread_flag(TIF_SINGLE_STEP)) { + pr_debug("TIF_SINGLE_STEP set, ds = 0x%08lx\n", ds); + if (ds & DS_SSS) { + dc = __mfdr(DBGREG_DC); + dc &= ~DC_SS; + __mtdr(DBGREG_DC, dc); + + clear_thread_flag(TIF_SINGLE_STEP); + ptrace_break(current, regs); + } + } else { + /* regular breakpoint */ + ptrace_break(current, regs); + } +}
diff --git a/arch/avr32/kernel/semaphore.c b/arch/avr32/kernel/semaphore.c new file mode 100644 index 0000000..1e2705a --- /dev/null +++ b/arch/avr32/kernel/semaphore.c
@@ -0,0 +1,148 @@ +/* + * AVR32 sempahore implementation. + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * Based on linux/arch/i386/kernel/semaphore.c + * Copyright (C) 1999 Linus Torvalds + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/sched.h> +#include <linux/errno.h> +#include <linux/module.h> + +#include <asm/semaphore.h> +#include <asm/atomic.h> + +/* + * Semaphores are implemented using a two-way counter: + * The "count" variable is decremented for each process + * that tries to acquire the semaphore, while the "sleeping" + * variable is a count of such acquires. + * + * Notably, the inline "up()" and "down()" functions can + * efficiently test if they need to do any extra work (up + * needs to do something only if count was negative before + * the increment operation. + * + * "sleeping" and the contention routine ordering is protected + * by the spinlock in the semaphore's waitqueue head. + * + * Note that these functions are only called when there is + * contention on the lock, and as such all this is the + * "non-critical" part of the whole semaphore business. The + * critical part is the inline stuff in <asm/semaphore.h> + * where we want to avoid any extra jumps and calls. + */ + +/* + * Logic: + * - only on a boundary condition do we need to care. When we go + * from a negative count to a non-negative, we wake people up. + * - when we go from a non-negative count to a negative do we + * (a) synchronize with the "sleeper" count and (b) make sure + * that we're on the wakeup list before we synchronize so that + * we cannot lose wakeup events. + */ + +void __up(struct semaphore *sem) +{ + wake_up(&sem->wait); +} +EXPORT_SYMBOL(__up); + +void __sched __down(struct semaphore *sem) +{ + struct task_struct *tsk = current; + DECLARE_WAITQUEUE(wait, tsk); + unsigned long flags; + + tsk->state = TASK_UNINTERRUPTIBLE; + spin_lock_irqsave(&sem->wait.lock, flags); + add_wait_queue_exclusive_locked(&sem->wait, &wait); + + sem->sleepers++; + for (;;) { + int sleepers = sem->sleepers; + + /* + * Add "everybody else" into it. They aren't + * playing, because we own the spinlock in + * the wait_queue_head. + */ + if (atomic_add_return(sleepers - 1, &sem->count) >= 0) { + sem->sleepers = 0; + break; + } + sem->sleepers = 1; /* us - see -1 above */ + spin_unlock_irqrestore(&sem->wait.lock, flags); + + schedule(); + + spin_lock_irqsave(&sem->wait.lock, flags); + tsk->state = TASK_UNINTERRUPTIBLE; + } + remove_wait_queue_locked(&sem->wait, &wait); + wake_up_locked(&sem->wait); + spin_unlock_irqrestore(&sem->wait.lock, flags); + tsk->state = TASK_RUNNING; +} +EXPORT_SYMBOL(__down); + +int __sched __down_interruptible(struct semaphore *sem) +{ + int retval = 0; + struct task_struct *tsk = current; + DECLARE_WAITQUEUE(wait, tsk); + unsigned long flags; + + tsk->state = TASK_INTERRUPTIBLE; + spin_lock_irqsave(&sem->wait.lock, flags); + add_wait_queue_exclusive_locked(&sem->wait, &wait); + + sem->sleepers++; + for (;;) { + int sleepers = sem->sleepers; + + /* + * With signals pending, this turns into the trylock + * failure case - we won't be sleeping, and we can't + * get the lock as it has contention. Just correct the + * count and exit. + */ + if (signal_pending(current)) { + retval = -EINTR; + sem->sleepers = 0; + atomic_add(sleepers, &sem->count); + break; + } + + /* + * Add "everybody else" into it. They aren't + * playing, because we own the spinlock in + * the wait_queue_head. + */ + if (atomic_add_return(sleepers - 1, &sem->count) >= 0) { + sem->sleepers = 0; + break; + } + sem->sleepers = 1; /* us - see -1 above */ + spin_unlock_irqrestore(&sem->wait.lock, flags); + + schedule(); + + spin_lock_irqsave(&sem->wait.lock, flags); + tsk->state = TASK_INTERRUPTIBLE; + } + remove_wait_queue_locked(&sem->wait, &wait); + wake_up_locked(&sem->wait); + spin_unlock_irqrestore(&sem->wait.lock, flags); + + tsk->state = TASK_RUNNING; + return retval; +} +EXPORT_SYMBOL(__down_interruptible);
diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c new file mode 100644 index 0000000..5d68f3c --- /dev/null +++ b/arch/avr32/kernel/setup.c
@@ -0,0 +1,335 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/clk.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/console.h> +#include <linux/ioport.h> +#include <linux/bootmem.h> +#include <linux/fs.h> +#include <linux/module.h> +#include <linux/root_dev.h> +#include <linux/cpu.h> + +#include <asm/sections.h> +#include <asm/processor.h> +#include <asm/pgtable.h> +#include <asm/setup.h> +#include <asm/sysreg.h> + +#include <asm/arch/board.h> +#include <asm/arch/init.h> + +extern int root_mountflags; + +/* + * Bootloader-provided information about physical memory + */ +struct tag_mem_range *mem_phys; +struct tag_mem_range *mem_reserved; +struct tag_mem_range *mem_ramdisk; + +/* + * Initialize loops_per_jiffy as 5000000 (500MIPS). + * Better make it too large than too small... + */ +struct avr32_cpuinfo boot_cpu_data = { + .loops_per_jiffy = 5000000 +}; +EXPORT_SYMBOL(boot_cpu_data); + +static char command_line[COMMAND_LINE_SIZE]; + +/* + * Should be more than enough, but if you have a _really_ complex + * setup, you might need to increase the size of this... + */ +static struct tag_mem_range __initdata mem_range_cache[32]; +static unsigned mem_range_next_free; + +/* + * Standard memory resources + */ +static struct resource mem_res[] = { + { + .name = "Kernel code", + .start = 0, + .end = 0, + .flags = IORESOURCE_MEM + }, + { + .name = "Kernel data", + .start = 0, + .end = 0, + .flags = IORESOURCE_MEM, + }, +}; + +#define kernel_code mem_res[0] +#define kernel_data mem_res[1] + +/* + * Early framebuffer allocation. Works as follows: + * - If fbmem_size is zero, nothing will be allocated or reserved. + * - If fbmem_start is zero when setup_bootmem() is called, + * fbmem_size bytes will be allocated from the bootmem allocator. + * - If fbmem_start is nonzero, an area of size fbmem_size will be + * reserved at the physical address fbmem_start if necessary. If + * the area isn't in a memory region known to the kernel, it will + * be left alone. + * + * Board-specific code may use these variables to set up platform data + * for the framebuffer driver if fbmem_size is nonzero. + */ +static unsigned long __initdata fbmem_start; +static unsigned long __initdata fbmem_size; + +/* + * "fbmem=xxx[kKmM]" allocates the specified amount of boot memory for + * use as framebuffer. + * + * "fbmem=xxx[kKmM]@yyy[kKmM]" defines a memory region of size xxx and + * starting at yyy to be reserved for use as framebuffer. + * + * The kernel won't verify that the memory region starting at yyy + * actually contains usable RAM. + */ +static int __init early_parse_fbmem(char *p) +{ + fbmem_size = memparse(p, &p); + if (*p == '@') + fbmem_start = memparse(p, &p); + return 0; +} +early_param("fbmem", early_parse_fbmem); + +static inline void __init resource_init(void) +{ + struct tag_mem_range *region; + + kernel_code.start = __pa(init_mm.start_code); + kernel_code.end = __pa(init_mm.end_code - 1); + kernel_data.start = __pa(init_mm.end_code); + kernel_data.end = __pa(init_mm.brk - 1); + + for (region = mem_phys; region; region = region->next) { + struct resource *res; + unsigned long phys_start, phys_end; + + if (region->size == 0) + continue; + + phys_start = region->addr; + phys_end = phys_start + region->size - 1; + + res = alloc_bootmem_low(sizeof(*res)); + res->name = "System RAM"; + res->start = phys_start; + res->end = phys_end; + res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + + request_resource (&iomem_resource, res); + + if (kernel_code.start >= res->start && + kernel_code.end <= res->end) + request_resource (res, &kernel_code); + if (kernel_data.start >= res->start && + kernel_data.end <= res->end) + request_resource (res, &kernel_data); + } +} + +static int __init parse_tag_core(struct tag *tag) +{ + if (tag->hdr.size > 2) { + if ((tag->u.core.flags & 1) == 0) + root_mountflags &= ~MS_RDONLY; + ROOT_DEV = new_decode_dev(tag->u.core.rootdev); + } + return 0; +} +__tagtable(ATAG_CORE, parse_tag_core); + +static int __init parse_tag_mem_range(struct tag *tag, + struct tag_mem_range **root) +{ + struct tag_mem_range *cur, **pprev; + struct tag_mem_range *new; + + /* + * Ignore zero-sized entries. If we're running standalone, the + * SDRAM code may emit such entries if something goes + * wrong... + */ + if (tag->u.mem_range.size == 0) + return 0; + + /* + * Copy the data so the bootmem init code doesn't need to care + * about it. + */ + if (mem_range_next_free >= + (sizeof(mem_range_cache) / sizeof(mem_range_cache[0]))) + panic("Physical memory map too complex!\n"); + + new = &mem_range_cache[mem_range_next_free++]; + *new = tag->u.mem_range; + + pprev = root; + cur = *root; + while (cur) { + pprev = &cur->next; + cur = cur->next; + } + + *pprev = new; + new->next = NULL; + + return 0; +} + +static int __init parse_tag_mem(struct tag *tag) +{ + return parse_tag_mem_range(tag, &mem_phys); +} +__tagtable(ATAG_MEM, parse_tag_mem); + +static int __init parse_tag_cmdline(struct tag *tag) +{ + strlcpy(saved_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE); + return 0; +} +__tagtable(ATAG_CMDLINE, parse_tag_cmdline); + +static int __init parse_tag_rdimg(struct tag *tag) +{ + return parse_tag_mem_range(tag, &mem_ramdisk); +} +__tagtable(ATAG_RDIMG, parse_tag_rdimg); + +static int __init parse_tag_clock(struct tag *tag) +{ + /* + * We'll figure out the clocks by peeking at the system + * manager regs directly. + */ + return 0; +} +__tagtable(ATAG_CLOCK, parse_tag_clock); + +static int __init parse_tag_rsvd_mem(struct tag *tag) +{ + return parse_tag_mem_range(tag, &mem_reserved); +} +__tagtable(ATAG_RSVD_MEM, parse_tag_rsvd_mem); + +static int __init parse_tag_ethernet(struct tag *tag) +{ +#if 0 + const struct platform_device *pdev; + + /* + * We really need a bus type that supports "classes"...this + * will do for now (until we must handle other kinds of + * ethernet controllers) + */ + pdev = platform_get_device("macb", tag->u.ethernet.mac_index); + if (pdev && pdev->dev.platform_data) { + struct eth_platform_data *data = pdev->dev.platform_data; + + data->valid = 1; + data->mii_phy_addr = tag->u.ethernet.mii_phy_addr; + memcpy(data->hw_addr, tag->u.ethernet.hw_address, + sizeof(data->hw_addr)); + } +#endif + return 0; +} +__tagtable(ATAG_ETHERNET, parse_tag_ethernet); + +/* + * Scan the tag table for this tag, and call its parse function. The + * tag table is built by the linker from all the __tagtable + * declarations. + */ +static int __init parse_tag(struct tag *tag) +{ + extern struct tagtable __tagtable_begin, __tagtable_end; + struct tagtable *t; + + for (t = &__tagtable_begin; t < &__tagtable_end; t++) + if (tag->hdr.tag == t->tag) { + t->parse(tag); + break; + } + + return t < &__tagtable_end; +} + +/* + * Parse all tags in the list we got from the boot loader + */ +static void __init parse_tags(struct tag *t) +{ + for (; t->hdr.tag != ATAG_NONE; t = tag_next(t)) + if (!parse_tag(t)) + printk(KERN_WARNING + "Ignoring unrecognised tag 0x%08x\n", + t->hdr.tag); +} + +void __init setup_arch (char **cmdline_p) +{ + struct clk *cpu_clk; + + parse_tags(bootloader_tags); + + setup_processor(); + setup_platform(); + + cpu_clk = clk_get(NULL, "cpu"); + if (IS_ERR(cpu_clk)) { + printk(KERN_WARNING "Warning: Unable to get CPU clock\n"); + } else { + unsigned long cpu_hz = clk_get_rate(cpu_clk); + + /* + * Well, duh, but it's probably a good idea to + * increment the use count. + */ + clk_enable(cpu_clk); + + boot_cpu_data.clk = cpu_clk; + boot_cpu_data.loops_per_jiffy = cpu_hz * 4; + printk("CPU: Running at %lu.%03lu MHz\n", + ((cpu_hz + 500) / 1000) / 1000, + ((cpu_hz + 500) / 1000) % 1000); + } + + init_mm.start_code = (unsigned long) &_text; + init_mm.end_code = (unsigned long) &_etext; + init_mm.end_data = (unsigned long) &_edata; + init_mm.brk = (unsigned long) &_end; + + strlcpy(command_line, saved_command_line, COMMAND_LINE_SIZE); + *cmdline_p = command_line; + parse_early_param(); + + setup_bootmem(); + + board_setup_fbmem(fbmem_start, fbmem_size); + +#ifdef CONFIG_VT + conswitchp = &dummy_con; +#endif + + paging_init(); + + resource_init(); +}
diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c new file mode 100644 index 0000000..3309665 --- /dev/null +++ b/arch/avr32/kernel/signal.c
@@ -0,0 +1,328 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * Based on linux/arch/sh/kernel/signal.c + * Copyright (C) 1999, 2000 Niibe Yutaka & Kaz Kojima + * Copyright (C) 1991, 1992 Linus Torvalds + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/sched.h> +#include <linux/mm.h> +#include <linux/errno.h> +#include <linux/ptrace.h> +#include <linux/unistd.h> +#include <linux/suspend.h> + +#include <asm/uaccess.h> +#include <asm/ucontext.h> + +#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) + +asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss, + struct pt_regs *regs) +{ + return do_sigaltstack(uss, uoss, regs->sp); +} + +struct rt_sigframe +{ + struct siginfo info; + struct ucontext uc; + unsigned long retcode; +}; + +static int +restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) +{ + int err = 0; + +#define COPY(x) err |= __get_user(regs->x, &sc->x) + COPY(sr); + COPY(pc); + COPY(lr); + COPY(sp); + COPY(r12); + COPY(r11); + COPY(r10); + COPY(r9); + COPY(r8); + COPY(r7); + COPY(r6); + COPY(r5); + COPY(r4); + COPY(r3); + COPY(r2); + COPY(r1); + COPY(r0); +#undef COPY + + /* + * Don't allow anyone to pretend they're running in supervisor + * mode or something... + */ + err |= !valid_user_regs(regs); + + return err; +} + + +asmlinkage int sys_rt_sigreturn(struct pt_regs *regs) +{ + struct rt_sigframe __user *frame; + sigset_t set; + + frame = (struct rt_sigframe __user *)regs->sp; + pr_debug("SIG return: frame = %p\n", frame); + + if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) + goto badframe; + + if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) + goto badframe; + + sigdelsetmask(&set, ~_BLOCKABLE); + spin_lock_irq(¤t->sighand->siglock); + current->blocked = set; + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + + if (restore_sigcontext(regs, &frame->uc.uc_mcontext)) + goto badframe; + + pr_debug("Context restored: pc = %08lx, lr = %08lx, sp = %08lx\n", + regs->pc, regs->lr, regs->sp); + + return regs->r12; + +badframe: + force_sig(SIGSEGV, current); + return 0; +} + +static int +setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs) +{ + int err = 0; + +#define COPY(x) err |= __put_user(regs->x, &sc->x) + COPY(sr); + COPY(pc); + COPY(lr); + COPY(sp); + COPY(r12); + COPY(r11); + COPY(r10); + COPY(r9); + COPY(r8); + COPY(r7); + COPY(r6); + COPY(r5); + COPY(r4); + COPY(r3); + COPY(r2); + COPY(r1); + COPY(r0); +#undef COPY + + return err; +} + +static inline void __user * +get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, int framesize) +{ + unsigned long sp = regs->sp; + + if ((ka->sa.sa_flags & SA_ONSTACK) && !sas_ss_flags(sp)) + sp = current->sas_ss_sp + current->sas_ss_size; + + return (void __user *)((sp - framesize) & ~3); +} + +static int +setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, + sigset_t *set, struct pt_regs *regs) +{ + struct rt_sigframe __user *frame; + int err = 0; + + frame = get_sigframe(ka, regs, sizeof(*frame)); + err = -EFAULT; + if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame))) + goto out; + + /* + * Set up the return code: + * + * mov r8, __NR_rt_sigreturn + * scall + * + * Note: This will blow up since we're using a non-executable + * stack. Better use SA_RESTORER. + */ +#if __NR_rt_sigreturn > 127 +# error __NR_rt_sigreturn must be < 127 to fit in a short mov +#endif + err = __put_user(0x3008d733 | (__NR_rt_sigreturn << 20), + &frame->retcode); + + err |= copy_siginfo_to_user(&frame->info, info); + + /* Set up the ucontext */ + err |= __put_user(0, &frame->uc.uc_flags); + err |= __put_user(NULL, &frame->uc.uc_link); + err |= __put_user((void __user *)current->sas_ss_sp, + &frame->uc.uc_stack.ss_sp); + err |= __put_user(sas_ss_flags(regs->sp), + &frame->uc.uc_stack.ss_flags); + err |= __put_user(current->sas_ss_size, + &frame->uc.uc_stack.ss_size); + err |= setup_sigcontext(&frame->uc.uc_mcontext, regs); + err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); + + if (err) + goto out; + + regs->r12 = sig; + regs->r11 = (unsigned long) &frame->info; + regs->r10 = (unsigned long) &frame->uc; + regs->sp = (unsigned long) frame; + if (ka->sa.sa_flags & SA_RESTORER) + regs->lr = (unsigned long)ka->sa.sa_restorer; + else { + printk(KERN_NOTICE "[%s:%d] did not set SA_RESTORER\n", + current->comm, current->pid); + regs->lr = (unsigned long) &frame->retcode; + } + + pr_debug("SIG deliver [%s:%d]: sig=%d sp=0x%lx pc=0x%lx->0x%p lr=0x%lx\n", + current->comm, current->pid, sig, regs->sp, + regs->pc, ka->sa.sa_handler, regs->lr); + + regs->pc = (unsigned long) ka->sa.sa_handler; + +out: + return err; +} + +static inline void restart_syscall(struct pt_regs *regs) +{ + if (regs->r12 == -ERESTART_RESTARTBLOCK) + regs->r8 = __NR_restart_syscall; + else + regs->r12 = regs->r12_orig; + regs->pc -= 2; +} + +static inline void +handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, + sigset_t *oldset, struct pt_regs *regs, int syscall) +{ + int ret; + + /* + * Set up the stack frame + */ + ret = setup_rt_frame(sig, ka, info, oldset, regs); + + /* + * Check that the resulting registers are sane + */ + ret |= !valid_user_regs(regs); + + /* + * Block the signal if we were unsuccessful. + */ + if (ret != 0 || !(ka->sa.sa_flags & SA_NODEFER)) { + spin_lock_irq(¤t->sighand->siglock); + sigorsets(¤t->blocked, ¤t->blocked, + &ka->sa.sa_mask); + sigaddset(¤t->blocked, sig); + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + } + + if (ret == 0) + return; + + force_sigsegv(sig, current); +} + +/* + * Note that 'init' is a special process: it doesn't get signals it + * doesn't want to handle. Thus you cannot kill init even with a + * SIGKILL even by mistake. + */ +int do_signal(struct pt_regs *regs, sigset_t *oldset, int syscall) +{ + siginfo_t info; + int signr; + struct k_sigaction ka; + + /* + * We want the common case to go fast, which is why we may in + * certain cases get here from kernel mode. Just return + * without doing anything if so. + */ + if (!user_mode(regs)) + return 0; + + if (try_to_freeze()) { + signr = 0; + if (!signal_pending(current)) + goto no_signal; + } + + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + oldset = ¤t->saved_sigmask; + else if (!oldset) + oldset = ¤t->blocked; + + signr = get_signal_to_deliver(&info, &ka, regs, NULL); +no_signal: + if (syscall) { + switch (regs->r12) { + case -ERESTART_RESTARTBLOCK: + case -ERESTARTNOHAND: + if (signr > 0) { + regs->r12 = -EINTR; + break; + } + /* fall through */ + case -ERESTARTSYS: + if (signr > 0 && !(ka.sa.sa_flags & SA_RESTART)) { + regs->r12 = -EINTR; + break; + } + /* fall through */ + case -ERESTARTNOINTR: + restart_syscall(regs); + } + } + + if (signr == 0) { + /* No signal to deliver -- put the saved sigmask back */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) { + clear_thread_flag(TIF_RESTORE_SIGMASK); + sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + } + return 0; + } + + handle_signal(signr, &ka, &info, oldset, regs, syscall); + return 1; +} + +asmlinkage void do_notify_resume(struct pt_regs *regs, struct thread_info *ti) +{ + int syscall = 0; + + if ((sysreg_read(SR) & MODE_MASK) == MODE_SUPERVISOR) + syscall = 1; + + if (ti->flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)) + do_signal(regs, ¤t->blocked, syscall); +}
diff --git a/arch/avr32/kernel/switch_to.S b/arch/avr32/kernel/switch_to.S new file mode 100644 index 0000000..a48d046 --- /dev/null +++ b/arch/avr32/kernel/switch_to.S
@@ -0,0 +1,35 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <asm/sysreg.h> + + .text + .global __switch_to + .type __switch_to, @function + + /* Switch thread context from "prev" to "next", returning "last" + * r12 : prev + * r11 : &prev->thread + 1 + * r10 : &next->thread + */ +__switch_to: + stm --r11, r0,r1,r2,r3,r4,r5,r6,r7,sp,lr + mfsr r9, SYSREG_SR + st.w --r11, r9 + ld.w r8, r10++ + /* + * schedule() may have been called from a mode with a different + * set of registers. Make sure we don't lose anything here. + */ + pushm r10,r12 + mtsr SYSREG_SR, r8 + frs /* flush the return stack */ + sub pc, -2 /* flush the pipeline */ + popm r10,r12 + ldm r10++, r0,r1,r2,r3,r4,r5,r6,r7,sp,pc + .size __switch_to, . - __switch_to
diff --git a/arch/avr32/kernel/sys_avr32.c b/arch/avr32/kernel/sys_avr32.c new file mode 100644 index 0000000..6ec5693 --- /dev/null +++ b/arch/avr32/kernel/sys_avr32.c
@@ -0,0 +1,51 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/errno.h> +#include <linux/fs.h> +#include <linux/file.h> +#include <linux/mm.h> +#include <linux/unistd.h> + +#include <asm/mman.h> +#include <asm/uaccess.h> + +asmlinkage int sys_pipe(unsigned long __user *filedes) +{ + int fd[2]; + int error; + + error = do_pipe(fd); + if (!error) { + if (copy_to_user(filedes, fd, sizeof(fd))) + error = -EFAULT; + } + return error; +} + +asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, + unsigned long prot, unsigned long flags, + unsigned long fd, off_t offset) +{ + int error = -EBADF; + struct file *file = NULL; + + flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); + if (!(flags & MAP_ANONYMOUS)) { + file = fget(fd); + if (!file) + return error; + } + + down_write(¤t->mm->mmap_sem); + error = do_mmap_pgoff(file, addr, len, prot, flags, offset); + up_write(¤t->mm->mmap_sem); + + if (file) + fput(file); + return error; +}
diff --git a/arch/avr32/kernel/syscall-stubs.S b/arch/avr32/kernel/syscall-stubs.S new file mode 100644 index 0000000..7589a9b --- /dev/null +++ b/arch/avr32/kernel/syscall-stubs.S
@@ -0,0 +1,102 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* + * Stubs for syscalls that require access to pt_regs or that take more + * than five parameters. + */ + +#define ARG6 r3 + + .text + .global __sys_rt_sigsuspend + .type __sys_rt_sigsuspend,@function +__sys_rt_sigsuspend: + mov r10, sp + rjmp sys_rt_sigsuspend + + .global __sys_sigaltstack + .type __sys_sigaltstack,@function +__sys_sigaltstack: + mov r10, sp + rjmp sys_sigaltstack + + .global __sys_rt_sigreturn + .type __sys_rt_sigreturn,@function +__sys_rt_sigreturn: + mov r12, sp + rjmp sys_rt_sigreturn + + .global __sys_fork + .type __sys_fork,@function +__sys_fork: + mov r12, sp + rjmp sys_fork + + .global __sys_clone + .type __sys_clone,@function +__sys_clone: + mov r8, sp + rjmp sys_clone + + .global __sys_vfork + .type __sys_vfork,@function +__sys_vfork: + mov r12, sp + rjmp sys_vfork + + .global __sys_execve + .type __sys_execve,@function +__sys_execve: + mov r9, sp + rjmp sys_execve + + .global __sys_mmap2 + .type __sys_mmap2,@function +__sys_mmap2: + pushm lr + st.w --sp, ARG6 + rcall sys_mmap2 + sub sp, -4 + popm pc + + .global __sys_sendto + .type __sys_sendto,@function +__sys_sendto: + pushm lr + st.w --sp, ARG6 + rcall sys_sendto + sub sp, -4 + popm pc + + .global __sys_recvfrom + .type __sys_recvfrom,@function +__sys_recvfrom: + pushm lr + st.w --sp, ARG6 + rcall sys_recvfrom + sub sp, -4 + popm pc + + .global __sys_pselect6 + .type __sys_pselect6,@function +__sys_pselect6: + pushm lr + st.w --sp, ARG6 + rcall sys_pselect6 + sub sp, -4 + popm pc + + .global __sys_splice + .type __sys_splice,@function +__sys_splice: + pushm lr + st.w --sp, ARG6 + rcall sys_splice + sub sp, -4 + popm pc
diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S new file mode 100644 index 0000000..63b2069 --- /dev/null +++ b/arch/avr32/kernel/syscall_table.S
@@ -0,0 +1,289 @@ +/* + * AVR32 system call table + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#if !defined(CONFIG_NFSD) && !defined(CONFIG_NFSD_MODULE) +#define sys_nfsservctl sys_ni_syscall +#endif + +#if !defined(CONFIG_SYSV_IPC) +# define sys_ipc sys_ni_syscall +#endif + + .section .rodata,"a",@progbits + .type sys_call_table,@object + .global sys_call_table + .align 2 +sys_call_table: + .long sys_restart_syscall + .long sys_exit + .long __sys_fork + .long sys_read + .long sys_write + .long sys_open /* 5 */ + .long sys_close + .long sys_umask + .long sys_creat + .long sys_link + .long sys_unlink /* 10 */ + .long __sys_execve + .long sys_chdir + .long sys_time + .long sys_mknod + .long sys_chmod /* 15 */ + .long sys_chown + .long sys_lchown + .long sys_lseek + .long sys_llseek + .long sys_getpid /* 20 */ + .long sys_mount + .long sys_umount + .long sys_setuid + .long sys_getuid + .long sys_stime /* 25 */ + .long sys_ptrace + .long sys_alarm + .long sys_pause + .long sys_utime + .long sys_newstat /* 30 */ + .long sys_newfstat + .long sys_newlstat + .long sys_access + .long sys_chroot + .long sys_sync /* 35 */ + .long sys_fsync + .long sys_kill + .long sys_rename + .long sys_mkdir + .long sys_rmdir /* 40 */ + .long sys_dup + .long sys_pipe + .long sys_times + .long __sys_clone + .long sys_brk /* 45 */ + .long sys_setgid + .long sys_getgid + .long sys_getcwd + .long sys_geteuid + .long sys_getegid /* 50 */ + .long sys_acct + .long sys_setfsuid + .long sys_setfsgid + .long sys_ioctl + .long sys_fcntl /* 55 */ + .long sys_setpgid + .long sys_mremap + .long sys_setresuid + .long sys_getresuid + .long sys_setreuid /* 60 */ + .long sys_setregid + .long sys_ustat + .long sys_dup2 + .long sys_getppid + .long sys_getpgrp /* 65 */ + .long sys_setsid + .long sys_rt_sigaction + .long __sys_rt_sigreturn + .long sys_rt_sigprocmask + .long sys_rt_sigpending /* 70 */ + .long sys_rt_sigtimedwait + .long sys_rt_sigqueueinfo + .long __sys_rt_sigsuspend + .long sys_sethostname + .long sys_setrlimit /* 75 */ + .long sys_getrlimit + .long sys_getrusage + .long sys_gettimeofday + .long sys_settimeofday + .long sys_getgroups /* 80 */ + .long sys_setgroups + .long sys_select + .long sys_symlink + .long sys_fchdir + .long sys_readlink /* 85 */ + .long sys_pread64 + .long sys_pwrite64 + .long sys_swapon + .long sys_reboot + .long __sys_mmap2 /* 90 */ + .long sys_munmap + .long sys_truncate + .long sys_ftruncate + .long sys_fchmod + .long sys_fchown /* 95 */ + .long sys_getpriority + .long sys_setpriority + .long sys_wait4 + .long sys_statfs + .long sys_fstatfs /* 100 */ + .long sys_vhangup + .long __sys_sigaltstack + .long sys_syslog + .long sys_setitimer + .long sys_getitimer /* 105 */ + .long sys_swapoff + .long sys_sysinfo + .long sys_ipc + .long sys_sendfile + .long sys_setdomainname /* 110 */ + .long sys_newuname + .long sys_adjtimex + .long sys_mprotect + .long __sys_vfork + .long sys_init_module /* 115 */ + .long sys_delete_module + .long sys_quotactl + .long sys_getpgid + .long sys_bdflush + .long sys_sysfs /* 120 */ + .long sys_personality + .long sys_ni_syscall /* reserved for afs_syscall */ + .long sys_getdents + .long sys_flock + .long sys_msync /* 125 */ + .long sys_readv + .long sys_writev + .long sys_getsid + .long sys_fdatasync + .long sys_sysctl /* 130 */ + .long sys_mlock + .long sys_munlock + .long sys_mlockall + .long sys_munlockall + .long sys_sched_setparam /* 135 */ + .long sys_sched_getparam + .long sys_sched_setscheduler + .long sys_sched_getscheduler + .long sys_sched_yield + .long sys_sched_get_priority_max /* 140 */ + .long sys_sched_get_priority_min + .long sys_sched_rr_get_interval + .long sys_nanosleep + .long sys_poll + .long sys_nfsservctl /* 145 */ + .long sys_setresgid + .long sys_getresgid + .long sys_prctl + .long sys_socket + .long sys_bind /* 150 */ + .long sys_connect + .long sys_listen + .long sys_accept + .long sys_getsockname + .long sys_getpeername /* 155 */ + .long sys_socketpair + .long sys_send + .long sys_recv + .long __sys_sendto + .long __sys_recvfrom /* 160 */ + .long sys_shutdown + .long sys_setsockopt + .long sys_getsockopt + .long sys_sendmsg + .long sys_recvmsg /* 165 */ + .long sys_truncate64 + .long sys_ftruncate64 + .long sys_stat64 + .long sys_lstat64 + .long sys_fstat64 /* 170 */ + .long sys_pivot_root + .long sys_mincore + .long sys_madvise + .long sys_getdents64 + .long sys_fcntl64 /* 175 */ + .long sys_gettid + .long sys_readahead + .long sys_setxattr + .long sys_lsetxattr + .long sys_fsetxattr /* 180 */ + .long sys_getxattr + .long sys_lgetxattr + .long sys_fgetxattr + .long sys_listxattr + .long sys_llistxattr /* 185 */ + .long sys_flistxattr + .long sys_removexattr + .long sys_lremovexattr + .long sys_fremovexattr + .long sys_tkill /* 190 */ + .long sys_sendfile64 + .long sys_futex + .long sys_sched_setaffinity + .long sys_sched_getaffinity + .long sys_capget /* 195 */ + .long sys_capset + .long sys_io_setup + .long sys_io_destroy + .long sys_io_getevents + .long sys_io_submit /* 200 */ + .long sys_io_cancel + .long sys_fadvise64 + .long sys_exit_group + .long sys_lookup_dcookie + .long sys_epoll_create /* 205 */ + .long sys_epoll_ctl + .long sys_epoll_wait + .long sys_remap_file_pages + .long sys_set_tid_address + .long sys_timer_create /* 210 */ + .long sys_timer_settime + .long sys_timer_gettime + .long sys_timer_getoverrun + .long sys_timer_delete + .long sys_clock_settime /* 215 */ + .long sys_clock_gettime + .long sys_clock_getres + .long sys_clock_nanosleep + .long sys_statfs64 + .long sys_fstatfs64 /* 220 */ + .long sys_tgkill + .long sys_ni_syscall /* reserved for TUX */ + .long sys_utimes + .long sys_fadvise64_64 + .long sys_cacheflush /* 225 */ + .long sys_ni_syscall /* sys_vserver */ + .long sys_mq_open + .long sys_mq_unlink + .long sys_mq_timedsend + .long sys_mq_timedreceive /* 230 */ + .long sys_mq_notify + .long sys_mq_getsetattr + .long sys_kexec_load + .long sys_waitid + .long sys_add_key /* 235 */ + .long sys_request_key + .long sys_keyctl + .long sys_ioprio_set + .long sys_ioprio_get + .long sys_inotify_init /* 240 */ + .long sys_inotify_add_watch + .long sys_inotify_rm_watch + .long sys_openat + .long sys_mkdirat + .long sys_mknodat /* 245 */ + .long sys_fchownat + .long sys_futimesat + .long sys_fstatat64 + .long sys_unlinkat + .long sys_renameat /* 250 */ + .long sys_linkat + .long sys_symlinkat + .long sys_readlinkat + .long sys_fchmodat + .long sys_faccessat /* 255 */ + .long __sys_pselect6 + .long sys_ppoll + .long sys_unshare + .long sys_set_robust_list + .long sys_get_robust_list /* 260 */ + .long __sys_splice + .long sys_sync_file_range + .long sys_tee + .long sys_vmsplice + .long sys_ni_syscall /* r8 is saturated at nr_syscalls */
diff --git a/arch/avr32/kernel/time.c b/arch/avr32/kernel/time.c new file mode 100644 index 0000000..b0e6b58 --- /dev/null +++ b/arch/avr32/kernel/time.c
@@ -0,0 +1,238 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * Based on MIPS implementation arch/mips/kernel/time.c + * Copyright 2001 MontaVista Software Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/clk.h> +#include <linux/clocksource.h> +#include <linux/time.h> +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/kernel_stat.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/profile.h> +#include <linux/sysdev.h> + +#include <asm/div64.h> +#include <asm/sysreg.h> +#include <asm/io.h> +#include <asm/sections.h> + +static cycle_t read_cycle_count(void) +{ + return (cycle_t)sysreg_read(COUNT); +} + +static struct clocksource clocksource_avr32 = { + .name = "avr32", + .rating = 350, + .read = read_cycle_count, + .mask = CLOCKSOURCE_MASK(32), + .shift = 16, + .is_continuous = 1, +}; + +/* + * By default we provide the null RTC ops + */ +static unsigned long null_rtc_get_time(void) +{ + return mktime(2004, 1, 1, 0, 0, 0); +} + +static int null_rtc_set_time(unsigned long sec) +{ + return 0; +} + +static unsigned long (*rtc_get_time)(void) = null_rtc_get_time; +static int (*rtc_set_time)(unsigned long) = null_rtc_set_time; + +/* how many counter cycles in a jiffy? */ +static unsigned long cycles_per_jiffy; + +/* cycle counter value at the previous timer interrupt */ +static unsigned int timerhi, timerlo; + +/* the count value for the next timer interrupt */ +static unsigned int expirelo; + +static void avr32_timer_ack(void) +{ + unsigned int count; + + /* Ack this timer interrupt and set the next one */ + expirelo += cycles_per_jiffy; + if (expirelo == 0) { + printk(KERN_DEBUG "expirelo == 0\n"); + sysreg_write(COMPARE, expirelo + 1); + } else { + sysreg_write(COMPARE, expirelo); + } + + /* Check to see if we have missed any timer interrupts */ + count = sysreg_read(COUNT); + if ((count - expirelo) < 0x7fffffff) { + expirelo = count + cycles_per_jiffy; + sysreg_write(COMPARE, expirelo); + } +} + +static unsigned int avr32_hpt_read(void) +{ + return sysreg_read(COUNT); +} + +/* + * Taken from MIPS c0_hpt_timer_init(). + * + * Why is it so complicated, and what is "count"? My assumption is + * that `count' specifies the "reference cycle", i.e. the cycle since + * reset that should mean "zero". The reason COUNT is written twice is + * probably to make sure we don't get any timer interrupts while we + * are messing with the counter. + */ +static void avr32_hpt_init(unsigned int count) +{ + count = sysreg_read(COUNT) - count; + expirelo = (count / cycles_per_jiffy + 1) * cycles_per_jiffy; + sysreg_write(COUNT, expirelo - cycles_per_jiffy); + sysreg_write(COMPARE, expirelo); + sysreg_write(COUNT, count); +} + +/* + * Scheduler clock - returns current time in nanosec units. + */ +unsigned long long sched_clock(void) +{ + /* There must be better ways...? */ + return (unsigned long long)jiffies * (1000000000 / HZ); +} + +/* + * local_timer_interrupt() does profiling and process accounting on a + * per-CPU basis. + * + * In UP mode, it is invoked from the (global) timer_interrupt. + */ +static void local_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + if (current->pid) + profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(regs)); +} + +static irqreturn_t +timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + unsigned int count; + + /* ack timer interrupt and try to set next interrupt */ + count = avr32_hpt_read(); + avr32_timer_ack(); + + /* Update timerhi/timerlo for intra-jiffy calibration */ + timerhi += count < timerlo; /* Wrap around */ + timerlo = count; + + /* + * Call the generic timer interrupt handler + */ + write_seqlock(&xtime_lock); + do_timer(regs); + write_sequnlock(&xtime_lock); + + /* + * In UP mode, we call local_timer_interrupt() to do profiling + * and process accounting. + * + * SMP is not supported yet. + */ + local_timer_interrupt(irq, dev_id, regs); + + return IRQ_HANDLED; +} + +static struct irqaction timer_irqaction = { + .handler = timer_interrupt, + .flags = IRQF_DISABLED, + .name = "timer", +}; + +void __init time_init(void) +{ + unsigned long mult, shift, count_hz; + int ret; + + xtime.tv_sec = rtc_get_time(); + xtime.tv_nsec = 0; + + set_normalized_timespec(&wall_to_monotonic, + -xtime.tv_sec, -xtime.tv_nsec); + + printk("Before time_init: count=%08lx, compare=%08lx\n", + (unsigned long)sysreg_read(COUNT), + (unsigned long)sysreg_read(COMPARE)); + + count_hz = clk_get_rate(boot_cpu_data.clk); + shift = clocksource_avr32.shift; + mult = clocksource_hz2mult(count_hz, shift); + clocksource_avr32.mult = mult; + + printk("Cycle counter: mult=%lu, shift=%lu\n", mult, shift); + + { + u64 tmp; + + tmp = TICK_NSEC; + tmp <<= shift; + tmp += mult / 2; + do_div(tmp, mult); + + cycles_per_jiffy = tmp; + } + + /* This sets up the high precision timer for the first interrupt. */ + avr32_hpt_init(avr32_hpt_read()); + + printk("After time_init: count=%08lx, compare=%08lx\n", + (unsigned long)sysreg_read(COUNT), + (unsigned long)sysreg_read(COMPARE)); + + ret = clocksource_register(&clocksource_avr32); + if (ret) + printk(KERN_ERR + "timer: could not register clocksource: %d\n", ret); + + ret = setup_irq(0, &timer_irqaction); + if (ret) + printk("timer: could not request IRQ 0: %d\n", ret); +} + +static struct sysdev_class timer_class = { + set_kset_name("timer"), +}; + +static struct sys_device timer_device = { + .id = 0, + .cls = &timer_class, +}; + +static int __init init_timer_sysfs(void) +{ + int err = sysdev_class_register(&timer_class); + if (!err) + err = sysdev_register(&timer_device); + return err; +} + +device_initcall(init_timer_sysfs);
diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c new file mode 100644 index 0000000..7e803f4 --- /dev/null +++ b/arch/avr32/kernel/traps.c
@@ -0,0 +1,425 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#undef DEBUG +#include <linux/sched.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/kallsyms.h> +#include <linux/notifier.h> + +#include <asm/traps.h> +#include <asm/sysreg.h> +#include <asm/addrspace.h> +#include <asm/ocd.h> +#include <asm/mmu_context.h> +#include <asm/uaccess.h> + +static void dump_mem(const char *str, unsigned long bottom, unsigned long top) +{ + unsigned long p; + int i; + + printk("%s(0x%08lx to 0x%08lx)\n", str, bottom, top); + + for (p = bottom & ~31; p < top; ) { + printk("%04lx: ", p & 0xffff); + + for (i = 0; i < 8; i++, p += 4) { + unsigned int val; + + if (p < bottom || p >= top) + printk(" "); + else { + if (__get_user(val, (unsigned int __user *)p)) { + printk("\n"); + goto out; + } + printk("%08x ", val); + } + } + printk("\n"); + } + +out: + return; +} + +#ifdef CONFIG_FRAME_POINTER +static inline void __show_trace(struct task_struct *tsk, unsigned long *sp, + struct pt_regs *regs) +{ + unsigned long __user *fp; + unsigned long __user *last_fp = NULL; + + if (regs) { + fp = (unsigned long __user *)regs->r7; + } else if (tsk == current) { + register unsigned long __user *real_fp __asm__("r7"); + fp = real_fp; + } else { + fp = (unsigned long __user *)tsk->thread.cpu_context.r7; + } + + /* + * Walk the stack until (a) we get an exception, (b) the frame + * pointer becomes zero, or (c) the frame pointer gets stuck + * at the same value. + */ + while (fp && fp != last_fp) { + unsigned long lr, new_fp = 0; + + last_fp = fp; + if (__get_user(lr, fp)) + break; + if (fp && __get_user(new_fp, fp + 1)) + break; + fp = (unsigned long __user *)new_fp; + + printk(" [<%08lx>] ", lr); + print_symbol("%s\n", lr); + } + printk("\n"); +} +#else +static inline void __show_trace(struct task_struct *tsk, unsigned long *sp, + struct pt_regs *regs) +{ + unsigned long addr; + + while (!kstack_end(sp)) { + addr = *sp++; + if (kernel_text_address(addr)) { + printk(" [<%08lx>] ", addr); + print_symbol("%s\n", addr); + } + } +} +#endif + +void show_trace(struct task_struct *tsk, unsigned long *sp, + struct pt_regs *regs) +{ + if (regs && + (((regs->sr & MODE_MASK) == MODE_EXCEPTION) || + ((regs->sr & MODE_MASK) == MODE_USER))) + return; + + printk ("Call trace:"); +#ifdef CONFIG_KALLSYMS + printk("\n"); +#endif + + __show_trace(tsk, sp, regs); + printk("\n"); +} + +void show_stack(struct task_struct *tsk, unsigned long *sp) +{ + unsigned long stack; + + if (!tsk) + tsk = current; + if (sp == 0) { + if (tsk == current) { + register unsigned long *real_sp __asm__("sp"); + sp = real_sp; + } else { + sp = (unsigned long *)tsk->thread.cpu_context.ksp; + } + } + + stack = (unsigned long)sp; + dump_mem("Stack: ", stack, + THREAD_SIZE + (unsigned long)tsk->thread_info); + show_trace(tsk, sp, NULL); +} + +void dump_stack(void) +{ + show_stack(NULL, NULL); +} +EXPORT_SYMBOL(dump_stack); + +ATOMIC_NOTIFIER_HEAD(avr32_die_chain); + +int register_die_notifier(struct notifier_block *nb) +{ + pr_debug("register_die_notifier: %p\n", nb); + + return atomic_notifier_chain_register(&avr32_die_chain, nb); +} +EXPORT_SYMBOL(register_die_notifier); + +int unregister_die_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(&avr32_die_chain, nb); +} +EXPORT_SYMBOL(unregister_die_notifier); + +static DEFINE_SPINLOCK(die_lock); + +void __die(const char *str, struct pt_regs *regs, unsigned long err, + const char *file, const char *func, unsigned long line) +{ + struct task_struct *tsk = current; + static int die_counter; + + console_verbose(); + spin_lock_irq(&die_lock); + bust_spinlocks(1); + + printk(KERN_ALERT "%s", str); + if (file && func) + printk(" in %s:%s, line %ld", file, func, line); + printk("[#%d]:\n", ++die_counter); + print_modules(); + show_regs(regs); + printk("Process %s (pid: %d, stack limit = 0x%p)\n", + tsk->comm, tsk->pid, tsk->thread_info + 1); + + if (!user_mode(regs) || in_interrupt()) { + dump_mem("Stack: ", regs->sp, + THREAD_SIZE + (unsigned long)tsk->thread_info); + } + + bust_spinlocks(0); + spin_unlock_irq(&die_lock); + do_exit(SIGSEGV); +} + +void __die_if_kernel(const char *str, struct pt_regs *regs, unsigned long err, + const char *file, const char *func, unsigned long line) +{ + if (!user_mode(regs)) + __die(str, regs, err, file, func, line); +} + +asmlinkage void do_nmi(unsigned long ecr, struct pt_regs *regs) +{ +#ifdef CONFIG_SUBARCH_AVR32B + /* + * The exception entry always saves RSR_EX. For NMI, this is + * wrong; it should be RSR_NMI + */ + regs->sr = sysreg_read(RSR_NMI); +#endif + + printk("NMI taken!!!!\n"); + die("NMI", regs, ecr); + BUG(); +} + +asmlinkage void do_critical_exception(unsigned long ecr, struct pt_regs *regs) +{ + printk("Unable to handle critical exception %lu at pc = %08lx!\n", + ecr, regs->pc); + die("Oops", regs, ecr); + BUG(); +} + +asmlinkage void do_address_exception(unsigned long ecr, struct pt_regs *regs) +{ + siginfo_t info; + + die_if_kernel("Oops: Address exception in kernel mode", regs, ecr); + +#ifdef DEBUG + if (ecr == ECR_ADDR_ALIGN_X) + pr_debug("Instruction Address Exception at pc = %08lx\n", + regs->pc); + else if (ecr == ECR_ADDR_ALIGN_R) + pr_debug("Data Address Exception (Read) at pc = %08lx\n", + regs->pc); + else if (ecr == ECR_ADDR_ALIGN_W) + pr_debug("Data Address Exception (Write) at pc = %08lx\n", + regs->pc); + else + BUG(); + + show_regs(regs); +#endif + + info.si_signo = SIGBUS; + info.si_errno = 0; + info.si_code = BUS_ADRALN; + info.si_addr = (void __user *)regs->pc; + + force_sig_info(SIGBUS, &info, current); +} + +/* This way of handling undefined instructions is stolen from ARM */ +static LIST_HEAD(undef_hook); +static spinlock_t undef_lock = SPIN_LOCK_UNLOCKED; + +void register_undef_hook(struct undef_hook *hook) +{ + spin_lock_irq(&undef_lock); + list_add(&hook->node, &undef_hook); + spin_unlock_irq(&undef_lock); +} + +void unregister_undef_hook(struct undef_hook *hook) +{ + spin_lock_irq(&undef_lock); + list_del(&hook->node); + spin_unlock_irq(&undef_lock); +} + +static int do_cop_absent(u32 insn) +{ + int cop_nr; + u32 cpucr; + if ( (insn & 0xfdf00000) == 0xf1900000 ) + /* LDC0 */ + cop_nr = 0; + else + cop_nr = (insn >> 13) & 0x7; + + /* Try enabling the coprocessor */ + cpucr = sysreg_read(CPUCR); + cpucr |= (1 << (24 + cop_nr)); + sysreg_write(CPUCR, cpucr); + + cpucr = sysreg_read(CPUCR); + if ( !(cpucr & (1 << (24 + cop_nr))) ){ + printk("Coprocessor #%i not found!\n", cop_nr); + return -1; + } + + return 0; +} + +#ifdef CONFIG_BUG +#ifdef CONFIG_DEBUG_BUGVERBOSE +static inline void do_bug_verbose(struct pt_regs *regs, u32 insn) +{ + char *file; + u16 line; + char c; + + if (__get_user(line, (u16 __user *)(regs->pc + 2))) + return; + if (__get_user(file, (char * __user *)(regs->pc + 4)) + || (unsigned long)file < PAGE_OFFSET + || __get_user(c, file)) + file = "<bad filename>"; + + printk(KERN_ALERT "kernel BUG at %s:%d!\n", file, line); +} +#else +static inline void do_bug_verbose(struct pt_regs *regs, u32 insn) +{ + +} +#endif +#endif + +asmlinkage void do_illegal_opcode(unsigned long ecr, struct pt_regs *regs) +{ + u32 insn; + struct undef_hook *hook; + siginfo_t info; + void __user *pc; + + if (!user_mode(regs)) + goto kernel_trap; + + local_irq_enable(); + + pc = (void __user *)instruction_pointer(regs); + if (__get_user(insn, (u32 __user *)pc)) + goto invalid_area; + + if (ecr == ECR_COPROC_ABSENT) { + if (do_cop_absent(insn) == 0) + return; + } + + spin_lock_irq(&undef_lock); + list_for_each_entry(hook, &undef_hook, node) { + if ((insn & hook->insn_mask) == hook->insn_val) { + if (hook->fn(regs, insn) == 0) { + spin_unlock_irq(&undef_lock); + return; + } + } + } + spin_unlock_irq(&undef_lock); + +invalid_area: + +#ifdef DEBUG + printk("Illegal instruction at pc = %08lx\n", regs->pc); + if (regs->pc < TASK_SIZE) { + unsigned long ptbr, pgd, pte, *p; + + ptbr = sysreg_read(PTBR); + p = (unsigned long *)ptbr; + pgd = p[regs->pc >> 22]; + p = (unsigned long *)((pgd & 0x1ffff000) | 0x80000000); + pte = p[(regs->pc >> 12) & 0x3ff]; + printk("page table: 0x%08lx -> 0x%08lx -> 0x%08lx\n", ptbr, pgd, pte); + } +#endif + + info.si_signo = SIGILL; + info.si_errno = 0; + info.si_addr = (void __user *)regs->pc; + switch (ecr) { + case ECR_ILLEGAL_OPCODE: + case ECR_UNIMPL_INSTRUCTION: + info.si_code = ILL_ILLOPC; + break; + case ECR_PRIVILEGE_VIOLATION: + info.si_code = ILL_PRVOPC; + break; + case ECR_COPROC_ABSENT: + info.si_code = ILL_COPROC; + break; + default: + BUG(); + } + + force_sig_info(SIGILL, &info, current); + return; + +kernel_trap: +#ifdef CONFIG_BUG + if (__kernel_text_address(instruction_pointer(regs))) { + insn = *(u16 *)instruction_pointer(regs); + if (insn == AVR32_BUG_OPCODE) { + do_bug_verbose(regs, insn); + die("Kernel BUG", regs, 0); + return; + } + } +#endif + + die("Oops: Illegal instruction in kernel code", regs, ecr); +} + +asmlinkage void do_fpe(unsigned long ecr, struct pt_regs *regs) +{ + siginfo_t info; + + printk("Floating-point exception at pc = %08lx\n", regs->pc); + + /* We have no FPU... */ + info.si_signo = SIGILL; + info.si_errno = 0; + info.si_addr = (void __user *)regs->pc; + info.si_code = ILL_COPROC; + + force_sig_info(SIGILL, &info, current); +} + + +void __init trap_init(void) +{ + +}
diff --git a/arch/avr32/kernel/vmlinux.lds.c b/arch/avr32/kernel/vmlinux.lds.c new file mode 100644 index 0000000..cdd627c --- /dev/null +++ b/arch/avr32/kernel/vmlinux.lds.c
@@ -0,0 +1,139 @@ +/* + * AVR32 linker script for the Linux kernel + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#define LOAD_OFFSET 0x00000000 +#include <asm-generic/vmlinux.lds.h> + +OUTPUT_FORMAT("elf32-avr32", "elf32-avr32", "elf32-avr32") +OUTPUT_ARCH(avr32) +ENTRY(_start) + +/* Big endian */ +jiffies = jiffies_64 + 4; + +SECTIONS +{ + . = CONFIG_ENTRY_ADDRESS; + .init : AT(ADDR(.init) - LOAD_OFFSET) { + _stext = .; + __init_begin = .; + _sinittext = .; + *(.text.reset) + *(.init.text) + _einittext = .; + . = ALIGN(4); + __tagtable_begin = .; + *(.taglist) + __tagtable_end = .; + *(.init.data) + . = ALIGN(16); + __setup_start = .; + *(.init.setup) + __setup_end = .; + . = ALIGN(4); + __initcall_start = .; + *(.initcall1.init) + *(.initcall2.init) + *(.initcall3.init) + *(.initcall4.init) + *(.initcall5.init) + *(.initcall6.init) + *(.initcall7.init) + __initcall_end = .; + __con_initcall_start = .; + *(.con_initcall.init) + __con_initcall_end = .; + __security_initcall_start = .; + *(.security_initcall.init) + __security_initcall_end = .; + . = ALIGN(32); + __initramfs_start = .; + *(.init.ramfs) + __initramfs_end = .; + . = ALIGN(4096); + __init_end = .; + } + + . = ALIGN(8192); + .text : AT(ADDR(.text) - LOAD_OFFSET) { + _evba = .; + _text = .; + *(.ex.text) + . = 0x50; + *(.tlbx.ex.text) + . = 0x60; + *(.tlbr.ex.text) + . = 0x70; + *(.tlbw.ex.text) + . = 0x100; + *(.scall.text) + *(.irq.text) + *(.text) + SCHED_TEXT + LOCK_TEXT + KPROBES_TEXT + *(.fixup) + *(.gnu.warning) + _etext = .; + } = 0xd703d703 + + . = ALIGN(4); + __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { + __start___ex_table = .; + *(__ex_table) + __stop___ex_table = .; + } + + RODATA + + . = ALIGN(8192); + + .data : AT(ADDR(.data) - LOAD_OFFSET) { + _data = .; + _sdata = .; + /* + * First, the init task union, aligned to an 8K boundary. + */ + *(.data.init_task) + + /* Then, the cacheline aligned data */ + . = ALIGN(32); + *(.data.cacheline_aligned) + + /* And the rest... */ + *(.data.rel*) + *(.data) + CONSTRUCTORS + + _edata = .; + } + + + . = ALIGN(8); + .bss : AT(ADDR(.bss) - LOAD_OFFSET) { + __bss_start = .; + *(.bss) + *(COMMON) + . = ALIGN(8); + __bss_stop = .; + _end = .; + } + + /* When something in the kernel is NOT compiled as a module, the module + * cleanup code and data are put into these segments. Both can then be + * thrown away, as cleanup code is never called unless it's a module. + */ + /DISCARD/ : { + *(.exit.text) + *(.exit.data) + *(.exitcall.exit) + } + + DWARF_DEBUG +}
diff --git a/arch/avr32/lib/Makefile b/arch/avr32/lib/Makefile new file mode 100644 index 0000000..09ac43e --- /dev/null +++ b/arch/avr32/lib/Makefile
@@ -0,0 +1,10 @@ +# +# Makefile for AVR32-specific library files +# + +lib-y := copy_user.o clear_user.o +lib-y += strncpy_from_user.o strnlen_user.o +lib-y += delay.o memset.o memcpy.o findbit.o +lib-y += csum_partial.o csum_partial_copy_generic.o +lib-y += io-readsw.o io-readsl.o io-writesw.o io-writesl.o +lib-y += __avr32_lsl64.o __avr32_lsr64.o __avr32_asr64.o
diff --git a/arch/avr32/lib/__avr32_asr64.S b/arch/avr32/lib/__avr32_asr64.S new file mode 100644 index 0000000..368b6bc --- /dev/null +++ b/arch/avr32/lib/__avr32_asr64.S
@@ -0,0 +1,31 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + + /* + * DWtype __avr32_asr64(DWtype u, word_type b) + */ + .text + .global __avr32_asr64 + .type __avr32_asr64,@function +__avr32_asr64: + cp.w r12, 0 + reteq r12 + + rsub r9, r12, 32 + brle 1f + + lsl r8, r11, r9 + lsr r10, r10, r12 + asr r11, r11, r12 + or r10, r8 + retal r12 + +1: neg r9 + asr r10, r11, r9 + asr r11, 31 + retal r12
diff --git a/arch/avr32/lib/__avr32_lsl64.S b/arch/avr32/lib/__avr32_lsl64.S new file mode 100644 index 0000000..f1dbc2b --- /dev/null +++ b/arch/avr32/lib/__avr32_lsl64.S
@@ -0,0 +1,31 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + + /* + * DWtype __avr32_lsl64(DWtype u, word_type b) + */ + .text + .global __avr32_lsl64 + .type __avr32_lsl64,@function +__avr32_lsl64: + cp.w r12, 0 + reteq r12 + + rsub r9, r12, 32 + brle 1f + + lsr r8, r10, r9 + lsl r10, r10, r12 + lsl r11, r11, r12 + or r11, r8 + retal r12 + +1: neg r9 + lsl r11, r10, r9 + mov r10, 0 + retal r12
diff --git a/arch/avr32/lib/__avr32_lsr64.S b/arch/avr32/lib/__avr32_lsr64.S new file mode 100644 index 0000000..e65bb7f --- /dev/null +++ b/arch/avr32/lib/__avr32_lsr64.S
@@ -0,0 +1,31 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + + /* + * DWtype __avr32_lsr64(DWtype u, word_type b) + */ + .text + .global __avr32_lsr64 + .type __avr32_lsr64,@function +__avr32_lsr64: + cp.w r12, 0 + reteq r12 + + rsub r9, r12, 32 + brle 1f + + lsl r8, r11, r9 + lsr r11, r11, r12 + lsr r10, r10, r12 + or r10, r8 + retal r12 + +1: neg r9 + lsr r10, r11, r9 + mov r11, 0 + retal r12
diff --git a/arch/avr32/lib/clear_user.S b/arch/avr32/lib/clear_user.S new file mode 100644 index 0000000..d8991b6 --- /dev/null +++ b/arch/avr32/lib/clear_user.S
@@ -0,0 +1,76 @@ +/* + * Copyright 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <asm/page.h> +#include <asm/thread_info.h> +#include <asm/asm.h> + + .text + .align 1 + .global clear_user + .type clear_user, "function" +clear_user: + branch_if_kernel r8, __clear_user + ret_if_privileged r8, r12, r11, r11 + + .global __clear_user + .type __clear_user, "function" +__clear_user: + mov r9, r12 + mov r8, 0 + andl r9, 3, COH + brne 5f + +1: sub r11, 4 + brlt 2f + +10: st.w r12++, r8 + sub r11, 4 + brge 10b + +2: sub r11, -4 + reteq 0 + + /* Unaligned count or address */ + bld r11, 1 + brcc 12f +11: st.h r12++, r8 + sub r11, 2 + reteq 0 +12: st.b r12++, r8 + retal 0 + + /* Unaligned address */ +5: cp.w r11, 4 + brlt 2b + + lsl r9, 2 + add pc, pc, r9 +13: st.b r12++, r8 + sub r11, 1 +14: st.b r12++, r8 + sub r11, 1 +15: st.b r12++, r8 + sub r11, 1 + rjmp 1b + + .size clear_user, . - clear_user + .size __clear_user, . - __clear_user + + .section .fixup, "ax" + .align 1 +18: sub r11, -4 +19: retal r11 + + .section __ex_table, "a" + .align 2 + .long 10b, 18b + .long 11b, 19b + .long 12b, 19b + .long 13b, 19b + .long 14b, 19b + .long 15b, 19b
diff --git a/arch/avr32/lib/copy_user.S b/arch/avr32/lib/copy_user.S new file mode 100644 index 0000000..ea59c04 --- /dev/null +++ b/arch/avr32/lib/copy_user.S
@@ -0,0 +1,119 @@ +/* + * Copy to/from userspace with optional address space checking. + * + * Copyright 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <asm/page.h> +#include <asm/thread_info.h> +#include <asm/asm.h> + + /* + * __kernel_size_t + * __copy_user(void *to, const void *from, __kernel_size_t n) + * + * Returns the number of bytes not copied. Might be off by + * max 3 bytes if we get a fault in the main loop. + * + * The address-space checking functions simply fall through to + * the non-checking version. + */ + .text + .align 1 + .global copy_from_user + .type copy_from_user, @function +copy_from_user: + branch_if_kernel r8, __copy_user + ret_if_privileged r8, r11, r10, r10 + rjmp __copy_user + .size copy_from_user, . - copy_from_user + + .global copy_to_user + .type copy_to_user, @function +copy_to_user: + branch_if_kernel r8, __copy_user + ret_if_privileged r8, r12, r10, r10 + .size copy_to_user, . - copy_to_user + + .global __copy_user + .type __copy_user, @function +__copy_user: + mov r9, r11 + andl r9, 3, COH + brne 6f + + /* At this point, from is word-aligned */ +1: sub r10, 4 + brlt 3f + +2: +10: ld.w r8, r11++ +11: st.w r12++, r8 + sub r10, 4 + brge 2b + +3: sub r10, -4 + reteq 0 + + /* + * Handle unaligned count. Need to be careful with r10 here so + * that we return the correct value even if we get a fault + */ +4: +20: ld.ub r8, r11++ +21: st.b r12++, r8 + sub r10, 1 + reteq 0 +22: ld.ub r8, r11++ +23: st.b r12++, r8 + sub r10, 1 + reteq 0 +24: ld.ub r8, r11++ +25: st.b r12++, r8 + retal 0 + + /* Handle unaligned from-pointer */ +6: cp.w r10, 4 + brlt 4b + rsub r9, r9, 4 + +30: ld.ub r8, r11++ +31: st.b r12++, r8 + sub r10, 1 + sub r9, 1 + breq 1b +32: ld.ub r8, r11++ +33: st.b r12++, r8 + sub r10, 1 + sub r9, 1 + breq 1b +34: ld.ub r8, r11++ +35: st.b r12++, r8 + sub r10, 1 + rjmp 1b + .size __copy_user, . - __copy_user + + .section .fixup,"ax" + .align 1 +19: sub r10, -4 +29: retal r10 + + .section __ex_table,"a" + .align 2 + .long 10b, 19b + .long 11b, 19b + .long 20b, 29b + .long 21b, 29b + .long 22b, 29b + .long 23b, 29b + .long 24b, 29b + .long 25b, 29b + .long 30b, 29b + .long 31b, 29b + .long 32b, 29b + .long 33b, 29b + .long 34b, 29b + .long 35b, 29b
diff --git a/arch/avr32/lib/csum_partial.S b/arch/avr32/lib/csum_partial.S new file mode 100644 index 0000000..6a262b5 --- /dev/null +++ b/arch/avr32/lib/csum_partial.S
@@ -0,0 +1,47 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + + /* + * unsigned int csum_partial(const unsigned char *buff, + * int len, unsigned int sum) + */ + .text + .global csum_partial + .type csum_partial,"function" + .align 1 +csum_partial: + /* checksum complete words, aligned or not */ +3: sub r11, 4 + brlt 5f +4: ld.w r9, r12++ + add r10, r9 + acr r10 + sub r11, 4 + brge 4b + + /* return if we had a whole number of words */ +5: sub r11, -4 + reteq r10 + + /* checksum any remaining bytes at the end */ + mov r9, 0 + mov r8, 0 + cp r11, 2 + brlt 6f + ld.uh r9, r12++ + sub r11, 2 + breq 7f + lsl r9, 16 +6: ld.ub r8, r12++ + lsl r8, 8 +7: or r9, r8 + add r10, r9 + acr r10 + + retal r10 + .size csum_partial, . - csum_partial
diff --git a/arch/avr32/lib/csum_partial_copy_generic.S b/arch/avr32/lib/csum_partial_copy_generic.S new file mode 100644 index 0000000..a3a0f9b --- /dev/null +++ b/arch/avr32/lib/csum_partial_copy_generic.S
@@ -0,0 +1,99 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <asm/errno.h> +#include <asm/asm.h> + + /* + * unsigned int csum_partial_copy_generic(const char *src, char *dst, int len + * int sum, int *src_err_ptr, + * int *dst_err_ptr) + * + * Copy src to dst while checksumming, otherwise like csum_partial. + */ + + .macro ld_src size, reg, ptr +9999: ld.\size \reg, \ptr + .section __ex_table, "a" + .long 9999b, fixup_ld_src + .previous + .endm + + .macro st_dst size, ptr, reg +9999: st.\size \ptr, \reg + .section __ex_table, "a" + .long 9999b, fixup_st_dst + .previous + .endm + + .text + .global csum_partial_copy_generic + .type csum_partial_copy_generic,"function" + .align 1 +csum_partial_copy_generic: + pushm r4-r7,lr + + /* The inner loop */ +1: sub r10, 4 + brlt 5f +2: ld_src w, r5, r12++ + st_dst w, r11++, r5 + add r9, r5 + acr r9 + sub r10, 4 + brge 2b + + /* return if we had a whole number of words */ +5: sub r10, -4 + brne 7f + +6: mov r12, r9 + popm r4-r7,pc + + /* handle additional bytes at the tail */ +7: mov r5, 0 + mov r4, 32 +8: ld_src ub, r6, r12++ + st_dst b, r11++, r6 + lsl r5, 8 + sub r4, 8 + bfins r5, r6, 0, 8 + sub r10, 1 + brne 8b + + lsl r5, r5, r4 + add r9, r5 + acr r9 + rjmp 6b + + /* Exception handler */ + .section .fixup,"ax" + .align 1 +fixup_ld_src: + mov r9, -EFAULT + cp.w r8, 0 + breq 1f + st.w r8[0], r9 + +1: /* + * TODO: zero the complete destination - computing the rest + * is too much work + */ + + mov r9, 0 + rjmp 6b + +fixup_st_dst: + mov r9, -EFAULT + lddsp r8, sp[20] + cp.w r8, 0 + breq 1f + st.w r8[0], r9 +1: mov r9, 0 + rjmp 6b + + .previous
diff --git a/arch/avr32/lib/delay.c b/arch/avr32/lib/delay.c new file mode 100644 index 0000000..462c830 --- /dev/null +++ b/arch/avr32/lib/delay.c
@@ -0,0 +1,55 @@ +/* + * Precise Delay Loops for avr32 + * + * Copyright (C) 1993 Linus Torvalds + * Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz> + * Copyright (C) 2005-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/types.h> + +#include <asm/delay.h> +#include <asm/processor.h> +#include <asm/sysreg.h> + +int read_current_timer(unsigned long *timer_value) +{ + *timer_value = sysreg_read(COUNT); + return 0; +} + +void __delay(unsigned long loops) +{ + unsigned bclock, now; + + bclock = sysreg_read(COUNT); + do { + now = sysreg_read(COUNT); + } while ((now - bclock) < loops); +} + +inline void __const_udelay(unsigned long xloops) +{ + unsigned long long loops; + + asm("mulu.d %0, %1, %2" + : "=r"(loops) + : "r"(current_cpu_data.loops_per_jiffy * HZ), "r"(xloops)); + __delay(loops >> 32); +} + +void __udelay(unsigned long usecs) +{ + __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */ +} + +void __ndelay(unsigned long nsecs) +{ + __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */ +}
diff --git a/arch/avr32/lib/findbit.S b/arch/avr32/lib/findbit.S new file mode 100644 index 0000000..2b4856f --- /dev/null +++ b/arch/avr32/lib/findbit.S
@@ -0,0 +1,154 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/linkage.h> + + .text + /* + * unsigned long find_first_zero_bit(const unsigned long *addr, + * unsigned long size) + */ +ENTRY(find_first_zero_bit) + cp.w r11, 0 + reteq r11 + mov r9, r11 +1: ld.w r8, r12[0] + com r8 + brne .L_found + sub r12, -4 + sub r9, 32 + brgt 1b + retal r11 + + /* + * unsigned long find_next_zero_bit(const unsigned long *addr, + * unsigned long size, + * unsigned long offset) + */ +ENTRY(find_next_zero_bit) + lsr r8, r10, 5 + sub r9, r11, r10 + retle r11 + + lsl r8, 2 + add r12, r8 + andl r10, 31, COH + breq 1f + + /* offset is not word-aligned. Handle the first (32 - r10) bits */ + ld.w r8, r12[0] + com r8 + sub r12, -4 + lsr r8, r8, r10 + brne .L_found + + /* r9 = r9 - (32 - r10) = r9 + r10 - 32 */ + add r9, r10 + sub r9, 32 + retle r11 + + /* Main loop. offset must be word-aligned */ +1: ld.w r8, r12[0] + com r8 + brne .L_found + sub r12, -4 + sub r9, 32 + brgt 1b + retal r11 + + /* Common return path for when a bit is actually found. */ +.L_found: + brev r8 + clz r10, r8 + rsub r9, r11 + add r10, r9 + + /* XXX: If we don't have to return exactly "size" when the bit + is not found, we may drop this "min" thing */ + min r12, r11, r10 + retal r12 + + /* + * unsigned long find_first_bit(const unsigned long *addr, + * unsigned long size) + */ +ENTRY(find_first_bit) + cp.w r11, 0 + reteq r11 + mov r9, r11 +1: ld.w r8, r12[0] + cp.w r8, 0 + brne .L_found + sub r12, -4 + sub r9, 32 + brgt 1b + retal r11 + + /* + * unsigned long find_next_bit(const unsigned long *addr, + * unsigned long size, + * unsigned long offset) + */ +ENTRY(find_next_bit) + lsr r8, r10, 5 + sub r9, r11, r10 + retle r11 + + lsl r8, 2 + add r12, r8 + andl r10, 31, COH + breq 1f + + /* offset is not word-aligned. Handle the first (32 - r10) bits */ + ld.w r8, r12[0] + sub r12, -4 + lsr r8, r8, r10 + brne .L_found + + /* r9 = r9 - (32 - r10) = r9 + r10 - 32 */ + add r9, r10 + sub r9, 32 + retle r11 + + /* Main loop. offset must be word-aligned */ +1: ld.w r8, r12[0] + cp.w r8, 0 + brne .L_found + sub r12, -4 + sub r9, 32 + brgt 1b + retal r11 + +ENTRY(generic_find_next_zero_le_bit) + lsr r8, r10, 5 + sub r9, r11, r10 + retle r11 + + lsl r8, 2 + add r12, r8 + andl r10, 31, COH + breq 1f + + /* offset is not word-aligned. Handle the first (32 - r10) bits */ + ldswp.w r8, r12[0] + sub r12, -4 + lsr r8, r8, r10 + brne .L_found + + /* r9 = r9 - (32 - r10) = r9 + r10 - 32 */ + add r9, r10 + sub r9, 32 + retle r11 + + /* Main loop. offset must be word-aligned */ +1: ldswp.w r8, r12[0] + cp.w r8, 0 + brne .L_found + sub r12, -4 + sub r9, 32 + brgt 1b + retal r11
diff --git a/arch/avr32/lib/io-readsl.S b/arch/avr32/lib/io-readsl.S new file mode 100644 index 0000000..b103511 --- /dev/null +++ b/arch/avr32/lib/io-readsl.S
@@ -0,0 +1,24 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + + .global __raw_readsl + .type __raw_readsl,@function +__raw_readsl: + cp.w r10, 0 + reteq r12 + + /* + * If r11 isn't properly aligned, we might get an exception on + * some implementations. But there's not much we can do about it. + */ +1: ld.w r8, r12[0] + sub r10, 1 + st.w r11++, r8 + brne 1b + + retal r12
diff --git a/arch/avr32/lib/io-readsw.S b/arch/avr32/lib/io-readsw.S new file mode 100644 index 0000000..456be99 --- /dev/null +++ b/arch/avr32/lib/io-readsw.S
@@ -0,0 +1,43 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +.Lnot_word_aligned: + /* + * Bad alignment will cause a hardware exception, which is as + * good as anything. No need for us to check for proper alignment. + */ + ld.uh r8, r12[0] + sub r10, 1 + st.h r11++, r8 + + /* fall through */ + + .global __raw_readsw + .type __raw_readsw,@function +__raw_readsw: + cp.w r10, 0 + reteq r12 + mov r9, 3 + tst r11, r9 + brne .Lnot_word_aligned + + sub r10, 2 + brlt 2f + +1: ldins.h r8:t, r12[0] + ldins.h r8:b, r12[0] + st.w r11++, r8 + sub r10, 2 + brge 1b + +2: sub r10, -2 + reteq r12 + + ld.uh r8, r12[0] + st.h r11++, r8 + retal r12
diff --git a/arch/avr32/lib/io-writesl.S b/arch/avr32/lib/io-writesl.S new file mode 100644 index 0000000..22138b3 --- /dev/null +++ b/arch/avr32/lib/io-writesl.S
@@ -0,0 +1,20 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + + .global __raw_writesl + .type __raw_writesl,@function +__raw_writesl: + cp.w r10, 0 + reteq r12 + +1: ld.w r8, r11++ + sub r10, 1 + st.w r12[0], r8 + brne 1b + + retal r12
diff --git a/arch/avr32/lib/io-writesw.S b/arch/avr32/lib/io-writesw.S new file mode 100644 index 0000000..8c4a53f --- /dev/null +++ b/arch/avr32/lib/io-writesw.S
@@ -0,0 +1,38 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +.Lnot_word_aligned: + ld.uh r8, r11++ + sub r10, 1 + st.h r12[0], r8 + + .global __raw_writesw + .type __raw_writesw,@function +__raw_writesw: + cp.w r10, 0 + mov r9, 3 + reteq r12 + tst r11, r9 + brne .Lnot_word_aligned + + sub r10, 2 + brlt 2f + +1: ld.w r8, r11++ + bfextu r9, r8, 16, 16 + st.h r12[0], r9 + st.h r12[0], r8 + sub r10, 2 + brge 1b + +2: sub r10, -2 + reteq r12 + + ld.uh r8, r11++ + st.h r12[0], r8 + retal r12
diff --git a/arch/avr32/lib/libgcc.h b/arch/avr32/lib/libgcc.h new file mode 100644 index 0000000..5a091b5 --- /dev/null +++ b/arch/avr32/lib/libgcc.h
@@ -0,0 +1,33 @@ +/* Definitions for various functions 'borrowed' from gcc-3.4.3 */ + +#define BITS_PER_UNIT 8 + +typedef int QItype __attribute__ ((mode (QI))); +typedef unsigned int UQItype __attribute__ ((mode (QI))); +typedef int HItype __attribute__ ((mode (HI))); +typedef unsigned int UHItype __attribute__ ((mode (HI))); +typedef int SItype __attribute__ ((mode (SI))); +typedef unsigned int USItype __attribute__ ((mode (SI))); +typedef int DItype __attribute__ ((mode (DI))); +typedef unsigned int UDItype __attribute__ ((mode (DI))); +typedef float SFtype __attribute__ ((mode (SF))); +typedef float DFtype __attribute__ ((mode (DF))); +typedef int word_type __attribute__ ((mode (__word__))); + +#define W_TYPE_SIZE (4 * BITS_PER_UNIT) +#define Wtype SItype +#define UWtype USItype +#define HWtype SItype +#define UHWtype USItype +#define DWtype DItype +#define UDWtype UDItype +#define __NW(a,b) __ ## a ## si ## b +#define __NDW(a,b) __ ## a ## di ## b + +struct DWstruct {Wtype high, low;}; + +typedef union +{ + struct DWstruct s; + DWtype ll; +} DWunion;
diff --git a/arch/avr32/lib/longlong.h b/arch/avr32/lib/longlong.h new file mode 100644 index 0000000..cd5e369 --- /dev/null +++ b/arch/avr32/lib/longlong.h
@@ -0,0 +1,98 @@ +/* longlong.h -- definitions for mixed size 32/64 bit arithmetic. + Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000 + Free Software Foundation, Inc. + + This definition file is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public + License as published by the Free Software Foundation; either + version 2, or (at your option) any later version. + + This definition file is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied + warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* Borrowed from gcc-3.4.3 */ + +#define __BITS4 (W_TYPE_SIZE / 4) +#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2)) +#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1)) +#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2)) + +#define count_leading_zeros(count, x) ((count) = __builtin_clz(x)) + +#define __udiv_qrnnd_c(q, r, n1, n0, d) \ + do { \ + UWtype __d1, __d0, __q1, __q0; \ + UWtype __r1, __r0, __m; \ + __d1 = __ll_highpart (d); \ + __d0 = __ll_lowpart (d); \ + \ + __r1 = (n1) % __d1; \ + __q1 = (n1) / __d1; \ + __m = (UWtype) __q1 * __d0; \ + __r1 = __r1 * __ll_B | __ll_highpart (n0); \ + if (__r1 < __m) \ + { \ + __q1--, __r1 += (d); \ + if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\ + if (__r1 < __m) \ + __q1--, __r1 += (d); \ + } \ + __r1 -= __m; \ + \ + __r0 = __r1 % __d1; \ + __q0 = __r1 / __d1; \ + __m = (UWtype) __q0 * __d0; \ + __r0 = __r0 * __ll_B | __ll_lowpart (n0); \ + if (__r0 < __m) \ + { \ + __q0--, __r0 += (d); \ + if (__r0 >= (d)) \ + if (__r0 < __m) \ + __q0--, __r0 += (d); \ + } \ + __r0 -= __m; \ + \ + (q) = (UWtype) __q1 * __ll_B | __q0; \ + (r) = __r0; \ + } while (0) + +#define udiv_qrnnd __udiv_qrnnd_c + +#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ + do { \ + UWtype __x; \ + __x = (al) - (bl); \ + (sh) = (ah) - (bh) - (__x > (al)); \ + (sl) = __x; \ + } while (0) + +#define umul_ppmm(w1, w0, u, v) \ + do { \ + UWtype __x0, __x1, __x2, __x3; \ + UHWtype __ul, __vl, __uh, __vh; \ + \ + __ul = __ll_lowpart (u); \ + __uh = __ll_highpart (u); \ + __vl = __ll_lowpart (v); \ + __vh = __ll_highpart (v); \ + \ + __x0 = (UWtype) __ul * __vl; \ + __x1 = (UWtype) __ul * __vh; \ + __x2 = (UWtype) __uh * __vl; \ + __x3 = (UWtype) __uh * __vh; \ + \ + __x1 += __ll_highpart (__x0);/* this can't give carry */ \ + __x1 += __x2; /* but this indeed can */ \ + if (__x1 < __x2) /* did we get it? */ \ + __x3 += __ll_B; /* yes, add it in the proper pos. */ \ + \ + (w1) = __x3 + __ll_highpart (__x1); \ + (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \ + } while (0)
diff --git a/arch/avr32/lib/memcpy.S b/arch/avr32/lib/memcpy.S new file mode 100644 index 0000000..0abb261 --- /dev/null +++ b/arch/avr32/lib/memcpy.S
@@ -0,0 +1,62 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + + /* + * void *memcpy(void *to, const void *from, unsigned long n) + * + * This implementation does word-aligned loads in the main loop, + * possibly sacrificing alignment of stores. + * + * Hopefully, in most cases, both "to" and "from" will be + * word-aligned to begin with. + */ + .text + .global memcpy + .type memcpy, @function +memcpy: + mov r9, r11 + andl r9, 3, COH + brne 1f + + /* At this point, "from" is word-aligned */ +2: sub r10, 4 + mov r9, r12 + brlt 4f + +3: ld.w r8, r11++ + sub r10, 4 + st.w r12++, r8 + brge 3b + +4: neg r10 + reteq r9 + + /* Handle unaligned count */ + lsl r10, 2 + add pc, pc, r10 + ld.ub r8, r11++ + st.b r12++, r8 + ld.ub r8, r11++ + st.b r12++, r8 + ld.ub r8, r11++ + st.b r12++, r8 + retal r9 + + /* Handle unaligned "from" pointer */ +1: sub r10, 4 + brlt 4b + add r10, r9 + lsl r9, 2 + add pc, pc, r9 + ld.ub r8, r11++ + st.b r12++, r8 + ld.ub r8, r11++ + st.b r12++, r8 + ld.ub r8, r11++ + st.b r12++, r8 + rjmp 2b
diff --git a/arch/avr32/lib/memset.S b/arch/avr32/lib/memset.S new file mode 100644 index 0000000..40da32c --- /dev/null +++ b/arch/avr32/lib/memset.S
@@ -0,0 +1,72 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * Based on linux/arch/arm/lib/memset.S + * Copyright (C) 1995-2000 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * ASM optimised string functions + */ +#include <asm/asm.h> + + /* + * r12: void *b + * r11: int c + * r10: size_t len + * + * Returns b in r12 + */ + .text + .global memset + .type memset, @function + .align 5 +memset: + mov r9, r12 + mov r8, r12 + or r11, r11, r11 << 8 + andl r9, 3, COH + brne 1f + +2: or r11, r11, r11 << 16 + sub r10, 4 + brlt 5f + + /* Let's do some real work */ +4: st.w r8++, r11 + sub r10, 4 + brge 4b + + /* + * When we get here, we've got less than 4 bytes to set. r10 + * might be negative. + */ +5: sub r10, -4 + reteq r12 + + /* Fastpath ends here, exactly 32 bytes from memset */ + + /* Handle unaligned count or pointer */ + bld r10, 1 + brcc 6f + st.b r8++, r11 + st.b r8++, r11 + bld r10, 0 + retcc r12 +6: st.b r8++, r11 + retal r12 + + /* Handle unaligned pointer */ +1: sub r10, 4 + brlt 5b + add r10, r9 + lsl r9, 1 + add pc, r9 + st.b r8++, r11 + st.b r8++, r11 + st.b r8++, r11 + rjmp 2b + + .size memset, . - memset
diff --git a/arch/avr32/lib/strncpy_from_user.S b/arch/avr32/lib/strncpy_from_user.S new file mode 100644 index 0000000..72bd505 --- /dev/null +++ b/arch/avr32/lib/strncpy_from_user.S
@@ -0,0 +1,60 @@ +/* + * Copy to/from userspace with optional address space checking. + * + * Copyright 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/errno.h> + +#include <asm/page.h> +#include <asm/thread_info.h> +#include <asm/asm.h> + + /* + * long strncpy_from_user(char *dst, const char *src, long count) + * + * On success, returns the length of the string, not including + * the terminating NUL. + * + * If the string is longer than count, returns count + * + * If userspace access fails, returns -EFAULT + */ + .text + .align 1 + .global strncpy_from_user + .type strncpy_from_user, "function" +strncpy_from_user: + mov r9, -EFAULT + branch_if_kernel r8, __strncpy_from_user + ret_if_privileged r8, r11, r10, r9 + + .global __strncpy_from_user + .type __strncpy_from_user, "function" +__strncpy_from_user: + cp.w r10, 0 + reteq 0 + + mov r9, r10 + +1: ld.ub r8, r11++ + st.b r12++, r8 + cp.w r8, 0 + breq 2f + sub r9, 1 + brne 1b + +2: sub r10, r9 + retal r10 + + .section .fixup, "ax" + .align 1 +3: mov r12, -EFAULT + retal r12 + + .section __ex_table, "a" + .align 2 + .long 1b, 3b
diff --git a/arch/avr32/lib/strnlen_user.S b/arch/avr32/lib/strnlen_user.S new file mode 100644 index 0000000..65ce11a --- /dev/null +++ b/arch/avr32/lib/strnlen_user.S
@@ -0,0 +1,67 @@ +/* + * Copy to/from userspace with optional address space checking. + * + * Copyright 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <asm/page.h> +#include <asm/thread_info.h> +#include <asm/processor.h> +#include <asm/asm.h> + + .text + .align 1 + .global strnlen_user + .type strnlen_user, "function" +strnlen_user: + branch_if_kernel r8, __strnlen_user + sub r8, r11, 1 + add r8, r12 + retcs 0 + brmi adjust_length /* do a closer inspection */ + + .global __strnlen_user + .type __strnlen_user, "function" +__strnlen_user: + mov r10, r12 + +10: ld.ub r8, r12++ + cp.w r8, 0 + breq 2f + sub r11, 1 + brne 10b + + sub r12, -1 +2: sub r12, r10 + retal r12 + + + .type adjust_length, "function" +adjust_length: + cp.w r12, 0 /* addr must always be < TASK_SIZE */ + retmi 0 + + pushm lr + lddpc lr, _task_size + sub r11, lr, r12 + mov r9, r11 + rcall __strnlen_user + cp.w r12, r9 + brgt 1f + popm pc +1: popm pc, r12=0 + + .align 2 +_task_size: + .long TASK_SIZE + + .section .fixup, "ax" + .align 1 +19: retal 0 + + .section __ex_table, "a" + .align 2 + .long 10b, 19b
diff --git a/arch/avr32/mach-at32ap/Makefile b/arch/avr32/mach-at32ap/Makefile new file mode 100644 index 0000000..f62eb69 --- /dev/null +++ b/arch/avr32/mach-at32ap/Makefile
@@ -0,0 +1,2 @@ +obj-y += at32ap.o clock.o pio.o intc.o extint.o hsmc.o +obj-$(CONFIG_CPU_AT32AP7000) += at32ap7000.o
diff --git a/arch/avr32/mach-at32ap/at32ap.c b/arch/avr32/mach-at32ap/at32ap.c new file mode 100644 index 0000000..f7cedf5 --- /dev/null +++ b/arch/avr32/mach-at32ap/at32ap.c
@@ -0,0 +1,90 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/platform_device.h> + +#include <asm/io.h> + +#include <asm/arch/init.h> +#include <asm/arch/sm.h> + +struct at32_sm system_manager; + +static int __init at32_sm_init(void) +{ + struct resource *regs; + struct at32_sm *sm = &system_manager; + int ret = -ENXIO; + + regs = platform_get_resource(&at32_sm_device, IORESOURCE_MEM, 0); + if (!regs) + goto fail; + + spin_lock_init(&sm->lock); + sm->pdev = &at32_sm_device; + + ret = -ENOMEM; + sm->regs = ioremap(regs->start, regs->end - regs->start + 1); + if (!sm->regs) + goto fail; + + return 0; + +fail: + printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret); + return ret; +} + +void __init setup_platform(void) +{ + at32_sm_init(); + at32_clock_init(); + at32_portmux_init(); + + /* FIXME: This doesn't belong here */ + at32_setup_serial_console(1); +} + +static int __init pdc_probe(struct platform_device *pdev) +{ + struct clk *pclk, *hclk; + + pclk = clk_get(&pdev->dev, "pclk"); + if (IS_ERR(pclk)) { + dev_err(&pdev->dev, "no pclk defined\n"); + return PTR_ERR(pclk); + } + hclk = clk_get(&pdev->dev, "hclk"); + if (IS_ERR(hclk)) { + dev_err(&pdev->dev, "no hclk defined\n"); + clk_put(pclk); + return PTR_ERR(hclk); + } + + clk_enable(pclk); + clk_enable(hclk); + + dev_info(&pdev->dev, "Atmel Peripheral DMA Controller enabled\n"); + return 0; +} + +static struct platform_driver pdc_driver = { + .probe = pdc_probe, + .driver = { + .name = "pdc", + }, +}; + +static int __init pdc_init(void) +{ + return platform_driver_register(&pdc_driver); +} +arch_initcall(pdc_init);
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c new file mode 100644 index 0000000..37982b6 --- /dev/null +++ b/arch/avr32/mach-at32ap/at32ap7000.c
@@ -0,0 +1,876 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/clk.h> +#include <linux/init.h> +#include <linux/platform_device.h> + +#include <asm/io.h> + +#include <asm/arch/board.h> +#include <asm/arch/portmux.h> +#include <asm/arch/sm.h> + +#include "clock.h" +#include "pio.h" +#include "sm.h" + +#define PBMEM(base) \ + { \ + .start = base, \ + .end = base + 0x3ff, \ + .flags = IORESOURCE_MEM, \ + } +#define IRQ(num) \ + { \ + .start = num, \ + .end = num, \ + .flags = IORESOURCE_IRQ, \ + } +#define NAMED_IRQ(num, _name) \ + { \ + .start = num, \ + .end = num, \ + .name = _name, \ + .flags = IORESOURCE_IRQ, \ + } + +#define DEFINE_DEV(_name, _id) \ +static struct platform_device _name##_id##_device = { \ + .name = #_name, \ + .id = _id, \ + .resource = _name##_id##_resource, \ + .num_resources = ARRAY_SIZE(_name##_id##_resource), \ +} +#define DEFINE_DEV_DATA(_name, _id) \ +static struct platform_device _name##_id##_device = { \ + .name = #_name, \ + .id = _id, \ + .dev = { \ + .platform_data = &_name##_id##_data, \ + }, \ + .resource = _name##_id##_resource, \ + .num_resources = ARRAY_SIZE(_name##_id##_resource), \ +} + +#define DEV_CLK(_name, devname, bus, _index) \ +static struct clk devname##_##_name = { \ + .name = #_name, \ + .dev = &devname##_device.dev, \ + .parent = &bus##_clk, \ + .mode = bus##_clk_mode, \ + .get_rate = bus##_clk_get_rate, \ + .index = _index, \ +} + +enum { + PIOA, + PIOB, + PIOC, + PIOD, +}; + +enum { + FUNC_A, + FUNC_B, +}; + +unsigned long at32ap7000_osc_rates[3] = { + [0] = 32768, + /* FIXME: these are ATSTK1002-specific */ + [1] = 20000000, + [2] = 12000000, +}; + +static unsigned long osc_get_rate(struct clk *clk) +{ + return at32ap7000_osc_rates[clk->index]; +} + +static unsigned long pll_get_rate(struct clk *clk, unsigned long control) +{ + unsigned long div, mul, rate; + + if (!(control & SM_BIT(PLLEN))) + return 0; + + div = SM_BFEXT(PLLDIV, control) + 1; + mul = SM_BFEXT(PLLMUL, control) + 1; + + rate = clk->parent->get_rate(clk->parent); + rate = (rate + div / 2) / div; + rate *= mul; + + return rate; +} + +static unsigned long pll0_get_rate(struct clk *clk) +{ + u32 control; + + control = sm_readl(&system_manager, PM_PLL0); + + return pll_get_rate(clk, control); +} + +static unsigned long pll1_get_rate(struct clk *clk) +{ + u32 control; + + control = sm_readl(&system_manager, PM_PLL1); + + return pll_get_rate(clk, control); +} + +/* + * The AT32AP7000 has five primary clock sources: One 32kHz + * oscillator, two crystal oscillators and two PLLs. + */ +static struct clk osc32k = { + .name = "osc32k", + .get_rate = osc_get_rate, + .users = 1, + .index = 0, +}; +static struct clk osc0 = { + .name = "osc0", + .get_rate = osc_get_rate, + .users = 1, + .index = 1, +}; +static struct clk osc1 = { + .name = "osc1", + .get_rate = osc_get_rate, + .index = 2, +}; +static struct clk pll0 = { + .name = "pll0", + .get_rate = pll0_get_rate, + .parent = &osc0, +}; +static struct clk pll1 = { + .name = "pll1", + .get_rate = pll1_get_rate, + .parent = &osc0, +}; + +/* + * The main clock can be either osc0 or pll0. The boot loader may + * have chosen one for us, so we don't really know which one until we + * have a look at the SM. + */ +static struct clk *main_clock; + +/* + * Synchronous clocks are generated from the main clock. The clocks + * must satisfy the constraint + * fCPU >= fHSB >= fPB + * i.e. each clock must not be faster than its parent. + */ +static unsigned long bus_clk_get_rate(struct clk *clk, unsigned int shift) +{ + return main_clock->get_rate(main_clock) >> shift; +}; + +static void cpu_clk_mode(struct clk *clk, int enabled) +{ + struct at32_sm *sm = &system_manager; + unsigned long flags; + u32 mask; + + spin_lock_irqsave(&sm->lock, flags); + mask = sm_readl(sm, PM_CPU_MASK); + if (enabled) + mask |= 1 << clk->index; + else + mask &= ~(1 << clk->index); + sm_writel(sm, PM_CPU_MASK, mask); + spin_unlock_irqrestore(&sm->lock, flags); +} + +static unsigned long cpu_clk_get_rate(struct clk *clk) +{ + unsigned long cksel, shift = 0; + + cksel = sm_readl(&system_manager, PM_CKSEL); + if (cksel & SM_BIT(CPUDIV)) + shift = SM_BFEXT(CPUSEL, cksel) + 1; + + return bus_clk_get_rate(clk, shift); +} + +static void hsb_clk_mode(struct clk *clk, int enabled) +{ + struct at32_sm *sm = &system_manager; + unsigned long flags; + u32 mask; + + spin_lock_irqsave(&sm->lock, flags); + mask = sm_readl(sm, PM_HSB_MASK); + if (enabled) + mask |= 1 << clk->index; + else + mask &= ~(1 << clk->index); + sm_writel(sm, PM_HSB_MASK, mask); + spin_unlock_irqrestore(&sm->lock, flags); +} + +static unsigned long hsb_clk_get_rate(struct clk *clk) +{ + unsigned long cksel, shift = 0; + + cksel = sm_readl(&system_manager, PM_CKSEL); + if (cksel & SM_BIT(HSBDIV)) + shift = SM_BFEXT(HSBSEL, cksel) + 1; + + return bus_clk_get_rate(clk, shift); +} + +static void pba_clk_mode(struct clk *clk, int enabled) +{ + struct at32_sm *sm = &system_manager; + unsigned long flags; + u32 mask; + + spin_lock_irqsave(&sm->lock, flags); + mask = sm_readl(sm, PM_PBA_MASK); + if (enabled) + mask |= 1 << clk->index; + else + mask &= ~(1 << clk->index); + sm_writel(sm, PM_PBA_MASK, mask); + spin_unlock_irqrestore(&sm->lock, flags); +} + +static unsigned long pba_clk_get_rate(struct clk *clk) +{ + unsigned long cksel, shift = 0; + + cksel = sm_readl(&system_manager, PM_CKSEL); + if (cksel & SM_BIT(PBADIV)) + shift = SM_BFEXT(PBASEL, cksel) + 1; + + return bus_clk_get_rate(clk, shift); +} + +static void pbb_clk_mode(struct clk *clk, int enabled) +{ + struct at32_sm *sm = &system_manager; + unsigned long flags; + u32 mask; + + spin_lock_irqsave(&sm->lock, flags); + mask = sm_readl(sm, PM_PBB_MASK); + if (enabled) + mask |= 1 << clk->index; + else + mask &= ~(1 << clk->index); + sm_writel(sm, PM_PBB_MASK, mask); + spin_unlock_irqrestore(&sm->lock, flags); +} + +static unsigned long pbb_clk_get_rate(struct clk *clk) +{ + unsigned long cksel, shift = 0; + + cksel = sm_readl(&system_manager, PM_CKSEL); + if (cksel & SM_BIT(PBBDIV)) + shift = SM_BFEXT(PBBSEL, cksel) + 1; + + return bus_clk_get_rate(clk, shift); +} + +static struct clk cpu_clk = { + .name = "cpu", + .get_rate = cpu_clk_get_rate, + .users = 1, +}; +static struct clk hsb_clk = { + .name = "hsb", + .parent = &cpu_clk, + .get_rate = hsb_clk_get_rate, +}; +static struct clk pba_clk = { + .name = "pba", + .parent = &hsb_clk, + .mode = hsb_clk_mode, + .get_rate = pba_clk_get_rate, + .index = 1, +}; +static struct clk pbb_clk = { + .name = "pbb", + .parent = &hsb_clk, + .mode = hsb_clk_mode, + .get_rate = pbb_clk_get_rate, + .users = 1, + .index = 2, +}; + +/* -------------------------------------------------------------------- + * Generic Clock operations + * -------------------------------------------------------------------- */ + +static void genclk_mode(struct clk *clk, int enabled) +{ + u32 control; + + BUG_ON(clk->index > 7); + + control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); + if (enabled) + control |= SM_BIT(CEN); + else + control &= ~SM_BIT(CEN); + sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, control); +} + +static unsigned long genclk_get_rate(struct clk *clk) +{ + u32 control; + unsigned long div = 1; + + BUG_ON(clk->index > 7); + + if (!clk->parent) + return 0; + + control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); + if (control & SM_BIT(DIVEN)) + div = 2 * (SM_BFEXT(DIV, control) + 1); + + return clk->parent->get_rate(clk->parent) / div; +} + +static long genclk_set_rate(struct clk *clk, unsigned long rate, int apply) +{ + u32 control; + unsigned long parent_rate, actual_rate, div; + + BUG_ON(clk->index > 7); + + if (!clk->parent) + return 0; + + parent_rate = clk->parent->get_rate(clk->parent); + control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); + + if (rate > 3 * parent_rate / 4) { + actual_rate = parent_rate; + control &= ~SM_BIT(DIVEN); + } else { + div = (parent_rate + rate) / (2 * rate) - 1; + control = SM_BFINS(DIV, div, control) | SM_BIT(DIVEN); + actual_rate = parent_rate / (2 * (div + 1)); + } + + printk("clk %s: new rate %lu (actual rate %lu)\n", + clk->name, rate, actual_rate); + + if (apply) + sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, + control); + + return actual_rate; +} + +int genclk_set_parent(struct clk *clk, struct clk *parent) +{ + u32 control; + + BUG_ON(clk->index > 7); + + printk("clk %s: new parent %s (was %s)\n", + clk->name, parent->name, + clk->parent ? clk->parent->name : "(null)"); + + control = sm_readl(&system_manager, PM_GCCTRL + 4 * clk->index); + + if (parent == &osc1 || parent == &pll1) + control |= SM_BIT(OSCSEL); + else if (parent == &osc0 || parent == &pll0) + control &= ~SM_BIT(OSCSEL); + else + return -EINVAL; + + if (parent == &pll0 || parent == &pll1) + control |= SM_BIT(PLLSEL); + else + control &= ~SM_BIT(PLLSEL); + + sm_writel(&system_manager, PM_GCCTRL + 4 * clk->index, control); + clk->parent = parent; + + return 0; +} + +/* -------------------------------------------------------------------- + * System peripherals + * -------------------------------------------------------------------- */ +static struct resource sm_resource[] = { + PBMEM(0xfff00000), + NAMED_IRQ(19, "eim"), + NAMED_IRQ(20, "pm"), + NAMED_IRQ(21, "rtc"), +}; +struct platform_device at32_sm_device = { + .name = "sm", + .id = 0, + .resource = sm_resource, + .num_resources = ARRAY_SIZE(sm_resource), +}; +DEV_CLK(pclk, at32_sm, pbb, 0); + +static struct resource intc0_resource[] = { + PBMEM(0xfff00400), +}; +struct platform_device at32_intc0_device = { + .name = "intc", + .id = 0, + .resource = intc0_resource, + .num_resources = ARRAY_SIZE(intc0_resource), +}; +DEV_CLK(pclk, at32_intc0, pbb, 1); + +static struct clk ebi_clk = { + .name = "ebi", + .parent = &hsb_clk, + .mode = hsb_clk_mode, + .get_rate = hsb_clk_get_rate, + .users = 1, +}; +static struct clk hramc_clk = { + .name = "hramc", + .parent = &hsb_clk, + .mode = hsb_clk_mode, + .get_rate = hsb_clk_get_rate, + .users = 1, +}; + +static struct resource smc0_resource[] = { + PBMEM(0xfff03400), +}; +DEFINE_DEV(smc, 0); +DEV_CLK(pclk, smc0, pbb, 13); +DEV_CLK(mck, smc0, hsb, 0); + +static struct platform_device pdc_device = { + .name = "pdc", + .id = 0, +}; +DEV_CLK(hclk, pdc, hsb, 4); +DEV_CLK(pclk, pdc, pba, 16); + +static struct clk pico_clk = { + .name = "pico", + .parent = &cpu_clk, + .mode = cpu_clk_mode, + .get_rate = cpu_clk_get_rate, + .users = 1, +}; + +/* -------------------------------------------------------------------- + * PIO + * -------------------------------------------------------------------- */ + +static struct resource pio0_resource[] = { + PBMEM(0xffe02800), + IRQ(13), +}; +DEFINE_DEV(pio, 0); +DEV_CLK(mck, pio0, pba, 10); + +static struct resource pio1_resource[] = { + PBMEM(0xffe02c00), + IRQ(14), +}; +DEFINE_DEV(pio, 1); +DEV_CLK(mck, pio1, pba, 11); + +static struct resource pio2_resource[] = { + PBMEM(0xffe03000), + IRQ(15), +}; +DEFINE_DEV(pio, 2); +DEV_CLK(mck, pio2, pba, 12); + +static struct resource pio3_resource[] = { + PBMEM(0xffe03400), + IRQ(16), +}; +DEFINE_DEV(pio, 3); +DEV_CLK(mck, pio3, pba, 13); + +void __init at32_add_system_devices(void) +{ + system_manager.eim_first_irq = NR_INTERNAL_IRQS; + + platform_device_register(&at32_sm_device); + platform_device_register(&at32_intc0_device); + platform_device_register(&smc0_device); + platform_device_register(&pdc_device); + + platform_device_register(&pio0_device); + platform_device_register(&pio1_device); + platform_device_register(&pio2_device); + platform_device_register(&pio3_device); +} + +/* -------------------------------------------------------------------- + * USART + * -------------------------------------------------------------------- */ + +static struct resource usart0_resource[] = { + PBMEM(0xffe00c00), + IRQ(7), +}; +DEFINE_DEV(usart, 0); +DEV_CLK(usart, usart0, pba, 4); + +static struct resource usart1_resource[] = { + PBMEM(0xffe01000), + IRQ(7), +}; +DEFINE_DEV(usart, 1); +DEV_CLK(usart, usart1, pba, 4); + +static struct resource usart2_resource[] = { + PBMEM(0xffe01400), + IRQ(8), +}; +DEFINE_DEV(usart, 2); +DEV_CLK(usart, usart2, pba, 5); + +static struct resource usart3_resource[] = { + PBMEM(0xffe01800), + IRQ(9), +}; +DEFINE_DEV(usart, 3); +DEV_CLK(usart, usart3, pba, 6); + +static inline void configure_usart0_pins(void) +{ + portmux_set_func(PIOA, 8, FUNC_B); /* RXD */ + portmux_set_func(PIOA, 9, FUNC_B); /* TXD */ +} + +static inline void configure_usart1_pins(void) +{ + portmux_set_func(PIOA, 17, FUNC_A); /* RXD */ + portmux_set_func(PIOA, 18, FUNC_A); /* TXD */ +} + +static inline void configure_usart2_pins(void) +{ + portmux_set_func(PIOB, 26, FUNC_B); /* RXD */ + portmux_set_func(PIOB, 27, FUNC_B); /* TXD */ +} + +static inline void configure_usart3_pins(void) +{ + portmux_set_func(PIOB, 18, FUNC_B); /* RXD */ + portmux_set_func(PIOB, 17, FUNC_B); /* TXD */ +} + +static struct platform_device *setup_usart(unsigned int id) +{ + struct platform_device *pdev; + + switch (id) { + case 0: + pdev = &usart0_device; + configure_usart0_pins(); + break; + case 1: + pdev = &usart1_device; + configure_usart1_pins(); + break; + case 2: + pdev = &usart2_device; + configure_usart2_pins(); + break; + case 3: + pdev = &usart3_device; + configure_usart3_pins(); + break; + default: + pdev = NULL; + break; + } + + return pdev; +} + +struct platform_device *__init at32_add_device_usart(unsigned int id) +{ + struct platform_device *pdev; + + pdev = setup_usart(id); + if (pdev) + platform_device_register(pdev); + + return pdev; +} + +struct platform_device *at91_default_console_device; + +void __init at32_setup_serial_console(unsigned int usart_id) +{ + at91_default_console_device = setup_usart(usart_id); +} + +/* -------------------------------------------------------------------- + * Ethernet + * -------------------------------------------------------------------- */ + +static struct eth_platform_data macb0_data; +static struct resource macb0_resource[] = { + PBMEM(0xfff01800), + IRQ(25), +}; +DEFINE_DEV_DATA(macb, 0); +DEV_CLK(hclk, macb0, hsb, 8); +DEV_CLK(pclk, macb0, pbb, 6); + +struct platform_device *__init +at32_add_device_eth(unsigned int id, struct eth_platform_data *data) +{ + struct platform_device *pdev; + + switch (id) { + case 0: + pdev = &macb0_device; + + portmux_set_func(PIOC, 3, FUNC_A); /* TXD0 */ + portmux_set_func(PIOC, 4, FUNC_A); /* TXD1 */ + portmux_set_func(PIOC, 7, FUNC_A); /* TXEN */ + portmux_set_func(PIOC, 8, FUNC_A); /* TXCK */ + portmux_set_func(PIOC, 9, FUNC_A); /* RXD0 */ + portmux_set_func(PIOC, 10, FUNC_A); /* RXD1 */ + portmux_set_func(PIOC, 13, FUNC_A); /* RXER */ + portmux_set_func(PIOC, 15, FUNC_A); /* RXDV */ + portmux_set_func(PIOC, 16, FUNC_A); /* MDC */ + portmux_set_func(PIOC, 17, FUNC_A); /* MDIO */ + + if (!data->is_rmii) { + portmux_set_func(PIOC, 0, FUNC_A); /* COL */ + portmux_set_func(PIOC, 1, FUNC_A); /* CRS */ + portmux_set_func(PIOC, 2, FUNC_A); /* TXER */ + portmux_set_func(PIOC, 5, FUNC_A); /* TXD2 */ + portmux_set_func(PIOC, 6, FUNC_A); /* TXD3 */ + portmux_set_func(PIOC, 11, FUNC_A); /* RXD2 */ + portmux_set_func(PIOC, 12, FUNC_A); /* RXD3 */ + portmux_set_func(PIOC, 14, FUNC_A); /* RXCK */ + portmux_set_func(PIOC, 18, FUNC_A); /* SPD */ + } + break; + + default: + return NULL; + } + + memcpy(pdev->dev.platform_data, data, sizeof(struct eth_platform_data)); + platform_device_register(pdev); + + return pdev; +} + +/* -------------------------------------------------------------------- + * SPI + * -------------------------------------------------------------------- */ +static struct resource spi0_resource[] = { + PBMEM(0xffe00000), + IRQ(3), +}; +DEFINE_DEV(spi, 0); +DEV_CLK(mck, spi0, pba, 0); + +struct platform_device *__init at32_add_device_spi(unsigned int id) +{ + struct platform_device *pdev; + + switch (id) { + case 0: + pdev = &spi0_device; + portmux_set_func(PIOA, 0, FUNC_A); /* MISO */ + portmux_set_func(PIOA, 1, FUNC_A); /* MOSI */ + portmux_set_func(PIOA, 2, FUNC_A); /* SCK */ + portmux_set_func(PIOA, 3, FUNC_A); /* NPCS0 */ + portmux_set_func(PIOA, 4, FUNC_A); /* NPCS1 */ + portmux_set_func(PIOA, 5, FUNC_A); /* NPCS2 */ + break; + + default: + return NULL; + } + + platform_device_register(pdev); + return pdev; +} + +/* -------------------------------------------------------------------- + * LCDC + * -------------------------------------------------------------------- */ +static struct lcdc_platform_data lcdc0_data; +static struct resource lcdc0_resource[] = { + { + .start = 0xff000000, + .end = 0xff000fff, + .flags = IORESOURCE_MEM, + }, + IRQ(1), +}; +DEFINE_DEV_DATA(lcdc, 0); +DEV_CLK(hclk, lcdc0, hsb, 7); +static struct clk lcdc0_pixclk = { + .name = "pixclk", + .dev = &lcdc0_device.dev, + .mode = genclk_mode, + .get_rate = genclk_get_rate, + .set_rate = genclk_set_rate, + .set_parent = genclk_set_parent, + .index = 7, +}; + +struct platform_device *__init +at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data) +{ + struct platform_device *pdev; + + switch (id) { + case 0: + pdev = &lcdc0_device; + portmux_set_func(PIOC, 19, FUNC_A); /* CC */ + portmux_set_func(PIOC, 20, FUNC_A); /* HSYNC */ + portmux_set_func(PIOC, 21, FUNC_A); /* PCLK */ + portmux_set_func(PIOC, 22, FUNC_A); /* VSYNC */ + portmux_set_func(PIOC, 23, FUNC_A); /* DVAL */ + portmux_set_func(PIOC, 24, FUNC_A); /* MODE */ + portmux_set_func(PIOC, 25, FUNC_A); /* PWR */ + portmux_set_func(PIOC, 26, FUNC_A); /* DATA0 */ + portmux_set_func(PIOC, 27, FUNC_A); /* DATA1 */ + portmux_set_func(PIOC, 28, FUNC_A); /* DATA2 */ + portmux_set_func(PIOC, 29, FUNC_A); /* DATA3 */ + portmux_set_func(PIOC, 30, FUNC_A); /* DATA4 */ + portmux_set_func(PIOC, 31, FUNC_A); /* DATA5 */ + portmux_set_func(PIOD, 0, FUNC_A); /* DATA6 */ + portmux_set_func(PIOD, 1, FUNC_A); /* DATA7 */ + portmux_set_func(PIOD, 2, FUNC_A); /* DATA8 */ + portmux_set_func(PIOD, 3, FUNC_A); /* DATA9 */ + portmux_set_func(PIOD, 4, FUNC_A); /* DATA10 */ + portmux_set_func(PIOD, 5, FUNC_A); /* DATA11 */ + portmux_set_func(PIOD, 6, FUNC_A); /* DATA12 */ + portmux_set_func(PIOD, 7, FUNC_A); /* DATA13 */ + portmux_set_func(PIOD, 8, FUNC_A); /* DATA14 */ + portmux_set_func(PIOD, 9, FUNC_A); /* DATA15 */ + portmux_set_func(PIOD, 10, FUNC_A); /* DATA16 */ + portmux_set_func(PIOD, 11, FUNC_A); /* DATA17 */ + portmux_set_func(PIOD, 12, FUNC_A); /* DATA18 */ + portmux_set_func(PIOD, 13, FUNC_A); /* DATA19 */ + portmux_set_func(PIOD, 14, FUNC_A); /* DATA20 */ + portmux_set_func(PIOD, 15, FUNC_A); /* DATA21 */ + portmux_set_func(PIOD, 16, FUNC_A); /* DATA22 */ + portmux_set_func(PIOD, 17, FUNC_A); /* DATA23 */ + + clk_set_parent(&lcdc0_pixclk, &pll0); + clk_set_rate(&lcdc0_pixclk, clk_get_rate(&pll0)); + break; + + default: + return NULL; + } + + memcpy(pdev->dev.platform_data, data, + sizeof(struct lcdc_platform_data)); + + platform_device_register(pdev); + return pdev; +} + +struct clk *at32_clock_list[] = { + &osc32k, + &osc0, + &osc1, + &pll0, + &pll1, + &cpu_clk, + &hsb_clk, + &pba_clk, + &pbb_clk, + &at32_sm_pclk, + &at32_intc0_pclk, + &ebi_clk, + &hramc_clk, + &smc0_pclk, + &smc0_mck, + &pdc_hclk, + &pdc_pclk, + &pico_clk, + &pio0_mck, + &pio1_mck, + &pio2_mck, + &pio3_mck, + &usart0_usart, + &usart1_usart, + &usart2_usart, + &usart3_usart, + &macb0_hclk, + &macb0_pclk, + &spi0_mck, + &lcdc0_hclk, + &lcdc0_pixclk, +}; +unsigned int at32_nr_clocks = ARRAY_SIZE(at32_clock_list); + +void __init at32_portmux_init(void) +{ + at32_init_pio(&pio0_device); + at32_init_pio(&pio1_device); + at32_init_pio(&pio2_device); + at32_init_pio(&pio3_device); +} + +void __init at32_clock_init(void) +{ + struct at32_sm *sm = &system_manager; + u32 cpu_mask = 0, hsb_mask = 0, pba_mask = 0, pbb_mask = 0; + int i; + + if (sm_readl(sm, PM_MCCTRL) & SM_BIT(PLLSEL)) + main_clock = &pll0; + else + main_clock = &osc0; + + if (sm_readl(sm, PM_PLL0) & SM_BIT(PLLOSC)) + pll0.parent = &osc1; + if (sm_readl(sm, PM_PLL1) & SM_BIT(PLLOSC)) + pll1.parent = &osc1; + + /* + * Turn on all clocks that have at least one user already, and + * turn off everything else. We only do this for module + * clocks, and even though it isn't particularly pretty to + * check the address of the mode function, it should do the + * trick... + */ + for (i = 0; i < ARRAY_SIZE(at32_clock_list); i++) { + struct clk *clk = at32_clock_list[i]; + + if (clk->mode == &cpu_clk_mode) + cpu_mask |= 1 << clk->index; + else if (clk->mode == &hsb_clk_mode) + hsb_mask |= 1 << clk->index; + else if (clk->mode == &pba_clk_mode) + pba_mask |= 1 << clk->index; + else if (clk->mode == &pbb_clk_mode) + pbb_mask |= 1 << clk->index; + } + + sm_writel(sm, PM_CPU_MASK, cpu_mask); + sm_writel(sm, PM_HSB_MASK, hsb_mask); + sm_writel(sm, PM_PBA_MASK, pba_mask); + sm_writel(sm, PM_PBB_MASK, pbb_mask); +}
diff --git a/arch/avr32/mach-at32ap/clock.c b/arch/avr32/mach-at32ap/clock.c new file mode 100644 index 0000000..3d0d109 --- /dev/null +++ b/arch/avr32/mach-at32ap/clock.c
@@ -0,0 +1,148 @@ +/* + * Clock management for AT32AP CPUs + * + * Copyright (C) 2006 Atmel Corporation + * + * Based on arch/arm/mach-at91rm9200/clock.c + * Copyright (C) 2005 David Brownell + * Copyright (C) 2005 Ivan Kokshaysky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/device.h> +#include <linux/string.h> + +#include "clock.h" + +static spinlock_t clk_lock = SPIN_LOCK_UNLOCKED; + +struct clk *clk_get(struct device *dev, const char *id) +{ + int i; + + for (i = 0; i < at32_nr_clocks; i++) { + struct clk *clk = at32_clock_list[i]; + + if (clk->dev == dev && strcmp(id, clk->name) == 0) + return clk; + } + + return ERR_PTR(-ENOENT); +} +EXPORT_SYMBOL(clk_get); + +void clk_put(struct clk *clk) +{ + /* clocks are static for now, we can't free them */ +} +EXPORT_SYMBOL(clk_put); + +static void __clk_enable(struct clk *clk) +{ + if (clk->parent) + __clk_enable(clk->parent); + if (clk->users++ == 0 && clk->mode) + clk->mode(clk, 1); +} + +int clk_enable(struct clk *clk) +{ + unsigned long flags; + + spin_lock_irqsave(&clk_lock, flags); + __clk_enable(clk); + spin_unlock_irqrestore(&clk_lock, flags); + + return 0; +} +EXPORT_SYMBOL(clk_enable); + +static void __clk_disable(struct clk *clk) +{ + BUG_ON(clk->users == 0); + + if (--clk->users == 0 && clk->mode) + clk->mode(clk, 0); + if (clk->parent) + __clk_disable(clk->parent); +} + +void clk_disable(struct clk *clk) +{ + unsigned long flags; + + spin_lock_irqsave(&clk_lock, flags); + __clk_disable(clk); + spin_unlock_irqrestore(&clk_lock, flags); +} +EXPORT_SYMBOL(clk_disable); + +unsigned long clk_get_rate(struct clk *clk) +{ + unsigned long flags; + unsigned long rate; + + spin_lock_irqsave(&clk_lock, flags); + rate = clk->get_rate(clk); + spin_unlock_irqrestore(&clk_lock, flags); + + return rate; +} +EXPORT_SYMBOL(clk_get_rate); + +long clk_round_rate(struct clk *clk, unsigned long rate) +{ + unsigned long flags, actual_rate; + + if (!clk->set_rate) + return -ENOSYS; + + spin_lock_irqsave(&clk_lock, flags); + actual_rate = clk->set_rate(clk, rate, 0); + spin_unlock_irqrestore(&clk_lock, flags); + + return actual_rate; +} +EXPORT_SYMBOL(clk_round_rate); + +int clk_set_rate(struct clk *clk, unsigned long rate) +{ + unsigned long flags; + long ret; + + if (!clk->set_rate) + return -ENOSYS; + + spin_lock_irqsave(&clk_lock, flags); + ret = clk->set_rate(clk, rate, 1); + spin_unlock_irqrestore(&clk_lock, flags); + + return (ret < 0) ? ret : 0; +} +EXPORT_SYMBOL(clk_set_rate); + +int clk_set_parent(struct clk *clk, struct clk *parent) +{ + unsigned long flags; + int ret; + + if (!clk->set_parent) + return -ENOSYS; + + spin_lock_irqsave(&clk_lock, flags); + ret = clk->set_parent(clk, parent); + spin_unlock_irqrestore(&clk_lock, flags); + + return ret; +} +EXPORT_SYMBOL(clk_set_parent); + +struct clk *clk_get_parent(struct clk *clk) +{ + return clk->parent; +} +EXPORT_SYMBOL(clk_get_parent);
diff --git a/arch/avr32/mach-at32ap/clock.h b/arch/avr32/mach-at32ap/clock.h new file mode 100644 index 0000000..f953f04 --- /dev/null +++ b/arch/avr32/mach-at32ap/clock.h
@@ -0,0 +1,30 @@ +/* + * Clock management for AT32AP CPUs + * + * Copyright (C) 2006 Atmel Corporation + * + * Based on arch/arm/mach-at91rm9200/clock.c + * Copyright (C) 2005 David Brownell + * Copyright (C) 2005 Ivan Kokshaysky + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/clk.h> + +struct clk { + const char *name; /* Clock name/function */ + struct device *dev; /* Device the clock is used by */ + struct clk *parent; /* Parent clock, if any */ + void (*mode)(struct clk *clk, int enabled); + unsigned long (*get_rate)(struct clk *clk); + long (*set_rate)(struct clk *clk, unsigned long rate, + int apply); + int (*set_parent)(struct clk *clk, struct clk *parent); + u16 users; /* Enabled if non-zero */ + u16 index; /* Sibling index */ +}; + +extern struct clk *at32_clock_list[]; +extern unsigned int at32_nr_clocks;
diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c new file mode 100644 index 0000000..7da9c5f --- /dev/null +++ b/arch/avr32/mach-at32ap/extint.c
@@ -0,0 +1,171 @@ +/* + * External interrupt handling for AT32AP CPUs + * + * Copyright (C) 2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/platform_device.h> +#include <linux/random.h> + +#include <asm/io.h> + +#include <asm/arch/sm.h> + +#include "sm.h" + +static void eim_ack_irq(unsigned int irq) +{ + struct at32_sm *sm = get_irq_chip_data(irq); + sm_writel(sm, EIM_ICR, 1 << (irq - sm->eim_first_irq)); +} + +static void eim_mask_irq(unsigned int irq) +{ + struct at32_sm *sm = get_irq_chip_data(irq); + sm_writel(sm, EIM_IDR, 1 << (irq - sm->eim_first_irq)); +} + +static void eim_mask_ack_irq(unsigned int irq) +{ + struct at32_sm *sm = get_irq_chip_data(irq); + sm_writel(sm, EIM_ICR, 1 << (irq - sm->eim_first_irq)); + sm_writel(sm, EIM_IDR, 1 << (irq - sm->eim_first_irq)); +} + +static void eim_unmask_irq(unsigned int irq) +{ + struct at32_sm *sm = get_irq_chip_data(irq); + sm_writel(sm, EIM_IER, 1 << (irq - sm->eim_first_irq)); +} + +static int eim_set_irq_type(unsigned int irq, unsigned int flow_type) +{ + struct at32_sm *sm = get_irq_chip_data(irq); + unsigned int i = irq - sm->eim_first_irq; + u32 mode, edge, level; + unsigned long flags; + int ret = 0; + + flow_type &= IRQ_TYPE_SENSE_MASK; + + spin_lock_irqsave(&sm->lock, flags); + + mode = sm_readl(sm, EIM_MODE); + edge = sm_readl(sm, EIM_EDGE); + level = sm_readl(sm, EIM_LEVEL); + + switch (flow_type) { + case IRQ_TYPE_LEVEL_LOW: + mode |= 1 << i; + level &= ~(1 << i); + break; + case IRQ_TYPE_LEVEL_HIGH: + mode |= 1 << i; + level |= 1 << i; + break; + case IRQ_TYPE_EDGE_RISING: + mode &= ~(1 << i); + edge |= 1 << i; + break; + case IRQ_TYPE_EDGE_FALLING: + mode &= ~(1 << i); + edge &= ~(1 << i); + break; + default: + ret = -EINVAL; + break; + } + + sm_writel(sm, EIM_MODE, mode); + sm_writel(sm, EIM_EDGE, edge); + sm_writel(sm, EIM_LEVEL, level); + + spin_unlock_irqrestore(&sm->lock, flags); + + return ret; +} + +struct irq_chip eim_chip = { + .name = "eim", + .ack = eim_ack_irq, + .mask = eim_mask_irq, + .mask_ack = eim_mask_ack_irq, + .unmask = eim_unmask_irq, + .set_type = eim_set_irq_type, +}; + +static void demux_eim_irq(unsigned int irq, struct irq_desc *desc, + struct pt_regs *regs) +{ + struct at32_sm *sm = desc->handler_data; + struct irq_desc *ext_desc; + unsigned long status, pending; + unsigned int i, ext_irq; + + spin_lock(&sm->lock); + + status = sm_readl(sm, EIM_ISR); + pending = status & sm_readl(sm, EIM_IMR); + + while (pending) { + i = fls(pending) - 1; + pending &= ~(1 << i); + + ext_irq = i + sm->eim_first_irq; + ext_desc = irq_desc + ext_irq; + ext_desc->handle_irq(ext_irq, ext_desc, regs); + } + + spin_unlock(&sm->lock); +} + +static int __init eim_init(void) +{ + struct at32_sm *sm = &system_manager; + unsigned int i; + unsigned int nr_irqs; + unsigned int int_irq; + u32 pattern; + + /* + * The EIM is really the same module as SM, so register + * mapping, etc. has been taken care of already. + */ + + /* + * Find out how many interrupt lines that are actually + * implemented in hardware. + */ + sm_writel(sm, EIM_IDR, ~0UL); + sm_writel(sm, EIM_MODE, ~0UL); + pattern = sm_readl(sm, EIM_MODE); + nr_irqs = fls(pattern); + + sm->eim_chip = &eim_chip; + + for (i = 0; i < nr_irqs; i++) { + set_irq_chip(sm->eim_first_irq + i, &eim_chip); + set_irq_chip_data(sm->eim_first_irq + i, sm); + } + + int_irq = platform_get_irq_byname(sm->pdev, "eim"); + + set_irq_chained_handler(int_irq, demux_eim_irq); + set_irq_data(int_irq, sm); + + printk("EIM: External Interrupt Module at 0x%p, IRQ %u\n", + sm->regs, int_irq); + printk("EIM: Handling %u external IRQs, starting with IRQ %u\n", + nr_irqs, sm->eim_first_irq); + + return 0; +} +arch_initcall(eim_init);
diff --git a/arch/avr32/mach-at32ap/hsmc.c b/arch/avr32/mach-at32ap/hsmc.c new file mode 100644 index 0000000..7691721 --- /dev/null +++ b/arch/avr32/mach-at32ap/hsmc.c
@@ -0,0 +1,164 @@ +/* + * Static Memory Controller for AT32 chips + * + * Copyright (C) 2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#define DEBUG +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <asm/io.h> +#include <asm/arch/smc.h> + +#include "hsmc.h" + +#define NR_CHIP_SELECTS 6 + +struct hsmc { + void __iomem *regs; + struct clk *pclk; + struct clk *mck; +}; + +static struct hsmc *hsmc; + +int smc_set_configuration(int cs, const struct smc_config *config) +{ + unsigned long mul; + unsigned long offset; + u32 setup, pulse, cycle, mode; + + if (!hsmc) + return -ENODEV; + if (cs >= NR_CHIP_SELECTS) + return -EINVAL; + + /* + * cycles = x / T = x * f + * = ((x * 1000000000) * ((f * 65536) / 1000000000)) / 65536 + * = ((x * 1000000000) * (((f / 10000) * 65536) / 100000)) / 65536 + */ + mul = (clk_get_rate(hsmc->mck) / 10000) << 16; + mul /= 100000; + +#define ns2cyc(x) ((((x) * mul) + 65535) >> 16) + + setup = (HSMC_BF(NWE_SETUP, ns2cyc(config->nwe_setup)) + | HSMC_BF(NCS_WR_SETUP, ns2cyc(config->ncs_write_setup)) + | HSMC_BF(NRD_SETUP, ns2cyc(config->nrd_setup)) + | HSMC_BF(NCS_RD_SETUP, ns2cyc(config->ncs_read_setup))); + pulse = (HSMC_BF(NWE_PULSE, ns2cyc(config->nwe_pulse)) + | HSMC_BF(NCS_WR_PULSE, ns2cyc(config->ncs_write_pulse)) + | HSMC_BF(NRD_PULSE, ns2cyc(config->nrd_pulse)) + | HSMC_BF(NCS_RD_PULSE, ns2cyc(config->ncs_read_pulse))); + cycle = (HSMC_BF(NWE_CYCLE, ns2cyc(config->write_cycle)) + | HSMC_BF(NRD_CYCLE, ns2cyc(config->read_cycle))); + + switch (config->bus_width) { + case 1: + mode = HSMC_BF(DBW, HSMC_DBW_8_BITS); + break; + case 2: + mode = HSMC_BF(DBW, HSMC_DBW_16_BITS); + break; + case 4: + mode = HSMC_BF(DBW, HSMC_DBW_32_BITS); + break; + default: + return -EINVAL; + } + + if (config->nrd_controlled) + mode |= HSMC_BIT(READ_MODE); + if (config->nwe_controlled) + mode |= HSMC_BIT(WRITE_MODE); + if (config->byte_write) + mode |= HSMC_BIT(BAT); + + pr_debug("smc cs%d: setup/%08x pulse/%08x cycle/%08x mode/%08x\n", + cs, setup, pulse, cycle, mode); + + offset = cs * 0x10; + hsmc_writel(hsmc, SETUP0 + offset, setup); + hsmc_writel(hsmc, PULSE0 + offset, pulse); + hsmc_writel(hsmc, CYCLE0 + offset, cycle); + hsmc_writel(hsmc, MODE0 + offset, mode); + hsmc_readl(hsmc, MODE0); /* I/O barrier */ + + return 0; +} +EXPORT_SYMBOL(smc_set_configuration); + +static int hsmc_probe(struct platform_device *pdev) +{ + struct resource *regs; + struct clk *pclk, *mck; + int ret; + + if (hsmc) + return -EBUSY; + + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!regs) + return -ENXIO; + pclk = clk_get(&pdev->dev, "pclk"); + if (IS_ERR(pclk)) + return PTR_ERR(pclk); + mck = clk_get(&pdev->dev, "mck"); + if (IS_ERR(mck)) { + ret = PTR_ERR(mck); + goto out_put_pclk; + } + + ret = -ENOMEM; + hsmc = kzalloc(sizeof(struct hsmc), GFP_KERNEL); + if (!hsmc) + goto out_put_clocks; + + clk_enable(pclk); + clk_enable(mck); + + hsmc->pclk = pclk; + hsmc->mck = mck; + hsmc->regs = ioremap(regs->start, regs->end - regs->start + 1); + if (!hsmc->regs) + goto out_disable_clocks; + + dev_info(&pdev->dev, "Atmel Static Memory Controller at 0x%08lx\n", + (unsigned long)regs->start); + + platform_set_drvdata(pdev, hsmc); + + return 0; + +out_disable_clocks: + clk_disable(mck); + clk_disable(pclk); + kfree(hsmc); +out_put_clocks: + clk_put(mck); +out_put_pclk: + clk_put(pclk); + hsmc = NULL; + return ret; +} + +static struct platform_driver hsmc_driver = { + .probe = hsmc_probe, + .driver = { + .name = "smc", + }, +}; + +static int __init hsmc_init(void) +{ + return platform_driver_register(&hsmc_driver); +} +arch_initcall(hsmc_init);
diff --git a/arch/avr32/mach-at32ap/hsmc.h b/arch/avr32/mach-at32ap/hsmc.h new file mode 100644 index 0000000..5681276 --- /dev/null +++ b/arch/avr32/mach-at32ap/hsmc.h
@@ -0,0 +1,127 @@ +/* + * Register definitions for Atmel Static Memory Controller (SMC) + * + * Copyright (C) 2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_HSMC_H__ +#define __ASM_AVR32_HSMC_H__ + +/* HSMC register offsets */ +#define HSMC_SETUP0 0x0000 +#define HSMC_PULSE0 0x0004 +#define HSMC_CYCLE0 0x0008 +#define HSMC_MODE0 0x000c +#define HSMC_SETUP1 0x0010 +#define HSMC_PULSE1 0x0014 +#define HSMC_CYCLE1 0x0018 +#define HSMC_MODE1 0x001c +#define HSMC_SETUP2 0x0020 +#define HSMC_PULSE2 0x0024 +#define HSMC_CYCLE2 0x0028 +#define HSMC_MODE2 0x002c +#define HSMC_SETUP3 0x0030 +#define HSMC_PULSE3 0x0034 +#define HSMC_CYCLE3 0x0038 +#define HSMC_MODE3 0x003c +#define HSMC_SETUP4 0x0040 +#define HSMC_PULSE4 0x0044 +#define HSMC_CYCLE4 0x0048 +#define HSMC_MODE4 0x004c +#define HSMC_SETUP5 0x0050 +#define HSMC_PULSE5 0x0054 +#define HSMC_CYCLE5 0x0058 +#define HSMC_MODE5 0x005c + +/* Bitfields in SETUP0 */ +#define HSMC_NWE_SETUP_OFFSET 0 +#define HSMC_NWE_SETUP_SIZE 6 +#define HSMC_NCS_WR_SETUP_OFFSET 8 +#define HSMC_NCS_WR_SETUP_SIZE 6 +#define HSMC_NRD_SETUP_OFFSET 16 +#define HSMC_NRD_SETUP_SIZE 6 +#define HSMC_NCS_RD_SETUP_OFFSET 24 +#define HSMC_NCS_RD_SETUP_SIZE 6 + +/* Bitfields in PULSE0 */ +#define HSMC_NWE_PULSE_OFFSET 0 +#define HSMC_NWE_PULSE_SIZE 7 +#define HSMC_NCS_WR_PULSE_OFFSET 8 +#define HSMC_NCS_WR_PULSE_SIZE 7 +#define HSMC_NRD_PULSE_OFFSET 16 +#define HSMC_NRD_PULSE_SIZE 7 +#define HSMC_NCS_RD_PULSE_OFFSET 24 +#define HSMC_NCS_RD_PULSE_SIZE 7 + +/* Bitfields in CYCLE0 */ +#define HSMC_NWE_CYCLE_OFFSET 0 +#define HSMC_NWE_CYCLE_SIZE 9 +#define HSMC_NRD_CYCLE_OFFSET 16 +#define HSMC_NRD_CYCLE_SIZE 9 + +/* Bitfields in MODE0 */ +#define HSMC_READ_MODE_OFFSET 0 +#define HSMC_READ_MODE_SIZE 1 +#define HSMC_WRITE_MODE_OFFSET 1 +#define HSMC_WRITE_MODE_SIZE 1 +#define HSMC_EXNW_MODE_OFFSET 4 +#define HSMC_EXNW_MODE_SIZE 2 +#define HSMC_BAT_OFFSET 8 +#define HSMC_BAT_SIZE 1 +#define HSMC_DBW_OFFSET 12 +#define HSMC_DBW_SIZE 2 +#define HSMC_TDF_CYCLES_OFFSET 16 +#define HSMC_TDF_CYCLES_SIZE 4 +#define HSMC_TDF_MODE_OFFSET 20 +#define HSMC_TDF_MODE_SIZE 1 +#define HSMC_PMEN_OFFSET 24 +#define HSMC_PMEN_SIZE 1 +#define HSMC_PS_OFFSET 28 +#define HSMC_PS_SIZE 2 + +/* Constants for READ_MODE */ +#define HSMC_READ_MODE_NCS_CONTROLLED 0 +#define HSMC_READ_MODE_NRD_CONTROLLED 1 + +/* Constants for WRITE_MODE */ +#define HSMC_WRITE_MODE_NCS_CONTROLLED 0 +#define HSMC_WRITE_MODE_NWE_CONTROLLED 1 + +/* Constants for EXNW_MODE */ +#define HSMC_EXNW_MODE_DISABLED 0 +#define HSMC_EXNW_MODE_RESERVED 1 +#define HSMC_EXNW_MODE_FROZEN 2 +#define HSMC_EXNW_MODE_READY 3 + +/* Constants for BAT */ +#define HSMC_BAT_BYTE_SELECT 0 +#define HSMC_BAT_BYTE_WRITE 1 + +/* Constants for DBW */ +#define HSMC_DBW_8_BITS 0 +#define HSMC_DBW_16_BITS 1 +#define HSMC_DBW_32_BITS 2 + +/* Bit manipulation macros */ +#define HSMC_BIT(name) \ + (1 << HSMC_##name##_OFFSET) +#define HSMC_BF(name,value) \ + (((value) & ((1 << HSMC_##name##_SIZE) - 1)) \ + << HSMC_##name##_OFFSET) +#define HSMC_BFEXT(name,value) \ + (((value) >> HSMC_##name##_OFFSET) \ + & ((1 << HSMC_##name##_SIZE) - 1)) +#define HSMC_BFINS(name,value,old) \ + (((old) & ~(((1 << HSMC_##name##_SIZE) - 1) \ + << HSMC_##name##_OFFSET)) | HSMC_BF(name,value)) + +/* Register access macros */ +#define hsmc_readl(port,reg) \ + readl((port)->regs + HSMC_##reg) +#define hsmc_writel(port,reg,value) \ + writel((value), (port)->regs + HSMC_##reg) + +#endif /* __ASM_AVR32_HSMC_H__ */
diff --git a/arch/avr32/mach-at32ap/intc.c b/arch/avr32/mach-at32ap/intc.c new file mode 100644 index 0000000..74f8c9f --- /dev/null +++ b/arch/avr32/mach-at32ap/intc.c
@@ -0,0 +1,133 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/platform_device.h> + +#include <asm/io.h> + +#include "intc.h" + +struct intc { + void __iomem *regs; + struct irq_chip chip; +}; + +extern struct platform_device at32_intc0_device; + +/* + * TODO: We may be able to implement mask/unmask by setting IxM flags + * in the status register. + */ +static void intc_mask_irq(unsigned int irq) +{ + +} + +static void intc_unmask_irq(unsigned int irq) +{ + +} + +static struct intc intc0 = { + .chip = { + .name = "intc", + .mask = intc_mask_irq, + .unmask = intc_unmask_irq, + }, +}; + +/* + * All interrupts go via intc at some point. + */ +asmlinkage void do_IRQ(int level, struct pt_regs *regs) +{ + struct irq_desc *desc; + unsigned int irq; + unsigned long status_reg; + + local_irq_disable(); + + irq_enter(); + + irq = intc_readl(&intc0, INTCAUSE0 - 4 * level); + desc = irq_desc + irq; + desc->handle_irq(irq, desc, regs); + + /* + * Clear all interrupt level masks so that we may handle + * interrupts during softirq processing. If this is a nested + * interrupt, interrupts must stay globally disabled until we + * return. + */ + status_reg = sysreg_read(SR); + status_reg &= ~(SYSREG_BIT(I0M) | SYSREG_BIT(I1M) + | SYSREG_BIT(I2M) | SYSREG_BIT(I3M)); + sysreg_write(SR, status_reg); + + irq_exit(); +} + +void __init init_IRQ(void) +{ + extern void _evba(void); + extern void irq_level0(void); + struct resource *regs; + struct clk *pclk; + unsigned int i; + u32 offset, readback; + + regs = platform_get_resource(&at32_intc0_device, IORESOURCE_MEM, 0); + if (!regs) { + printk(KERN_EMERG "intc: no mmio resource defined\n"); + goto fail; + } + pclk = clk_get(&at32_intc0_device.dev, "pclk"); + if (IS_ERR(pclk)) { + printk(KERN_EMERG "intc: no clock defined\n"); + goto fail; + } + + clk_enable(pclk); + + intc0.regs = ioremap(regs->start, regs->end - regs->start + 1); + if (!intc0.regs) { + printk(KERN_EMERG "intc: failed to map registers (0x%08lx)\n", + (unsigned long)regs->start); + goto fail; + } + + /* + * Initialize all interrupts to level 0 (lowest priority). The + * priority level may be changed by calling + * irq_set_priority(). + * + */ + offset = (unsigned long)&irq_level0 - (unsigned long)&_evba; + for (i = 0; i < NR_INTERNAL_IRQS; i++) { + intc_writel(&intc0, INTPR0 + 4 * i, offset); + readback = intc_readl(&intc0, INTPR0 + 4 * i); + if (readback == offset) + set_irq_chip_and_handler(i, &intc0.chip, + handle_simple_irq); + } + + /* Unmask all interrupt levels */ + sysreg_write(SR, (sysreg_read(SR) + & ~(SR_I3M | SR_I2M | SR_I1M | SR_I0M))); + + return; + +fail: + panic("Interrupt controller initialization failed!\n"); +} +
diff --git a/arch/avr32/mach-at32ap/intc.h b/arch/avr32/mach-at32ap/intc.h new file mode 100644 index 0000000..d289ca2 --- /dev/null +++ b/arch/avr32/mach-at32ap/intc.h
@@ -0,0 +1,327 @@ +/* + * Automatically generated by gen-header.xsl + */ +#ifndef __ASM_AVR32_PERIHP_INTC_H__ +#define __ASM_AVR32_PERIHP_INTC_H__ + +#define INTC_NUM_INT_GRPS 33 + +#define INTC_INTPR0 0x0 +# define INTC_INTPR0_INTLEV_OFFSET 30 +# define INTC_INTPR0_INTLEV_SIZE 2 +# define INTC_INTPR0_OFFSET_OFFSET 0 +# define INTC_INTPR0_OFFSET_SIZE 24 +#define INTC_INTREQ0 0x100 +# define INTC_INTREQ0_IREQUEST0_OFFSET 0 +# define INTC_INTREQ0_IREQUEST0_SIZE 1 +# define INTC_INTREQ0_IREQUEST1_OFFSET 1 +# define INTC_INTREQ0_IREQUEST1_SIZE 1 +#define INTC_INTPR1 0x4 +# define INTC_INTPR1_INTLEV_OFFSET 30 +# define INTC_INTPR1_INTLEV_SIZE 2 +# define INTC_INTPR1_OFFSET_OFFSET 0 +# define INTC_INTPR1_OFFSET_SIZE 24 +#define INTC_INTREQ1 0x104 +# define INTC_INTREQ1_IREQUEST32_OFFSET 0 +# define INTC_INTREQ1_IREQUEST32_SIZE 1 +# define INTC_INTREQ1_IREQUEST33_OFFSET 1 +# define INTC_INTREQ1_IREQUEST33_SIZE 1 +# define INTC_INTREQ1_IREQUEST34_OFFSET 2 +# define INTC_INTREQ1_IREQUEST34_SIZE 1 +# define INTC_INTREQ1_IREQUEST35_OFFSET 3 +# define INTC_INTREQ1_IREQUEST35_SIZE 1 +# define INTC_INTREQ1_IREQUEST36_OFFSET 4 +# define INTC_INTREQ1_IREQUEST36_SIZE 1 +# define INTC_INTREQ1_IREQUEST37_OFFSET 5 +# define INTC_INTREQ1_IREQUEST37_SIZE 1 +#define INTC_INTPR2 0x8 +# define INTC_INTPR2_INTLEV_OFFSET 30 +# define INTC_INTPR2_INTLEV_SIZE 2 +# define INTC_INTPR2_OFFSET_OFFSET 0 +# define INTC_INTPR2_OFFSET_SIZE 24 +#define INTC_INTREQ2 0x108 +# define INTC_INTREQ2_IREQUEST64_OFFSET 0 +# define INTC_INTREQ2_IREQUEST64_SIZE 1 +# define INTC_INTREQ2_IREQUEST65_OFFSET 1 +# define INTC_INTREQ2_IREQUEST65_SIZE 1 +# define INTC_INTREQ2_IREQUEST66_OFFSET 2 +# define INTC_INTREQ2_IREQUEST66_SIZE 1 +# define INTC_INTREQ2_IREQUEST67_OFFSET 3 +# define INTC_INTREQ2_IREQUEST67_SIZE 1 +# define INTC_INTREQ2_IREQUEST68_OFFSET 4 +# define INTC_INTREQ2_IREQUEST68_SIZE 1 +#define INTC_INTPR3 0xc +# define INTC_INTPR3_INTLEV_OFFSET 30 +# define INTC_INTPR3_INTLEV_SIZE 2 +# define INTC_INTPR3_OFFSET_OFFSET 0 +# define INTC_INTPR3_OFFSET_SIZE 24 +#define INTC_INTREQ3 0x10c +# define INTC_INTREQ3_IREQUEST96_OFFSET 0 +# define INTC_INTREQ3_IREQUEST96_SIZE 1 +#define INTC_INTPR4 0x10 +# define INTC_INTPR4_INTLEV_OFFSET 30 +# define INTC_INTPR4_INTLEV_SIZE 2 +# define INTC_INTPR4_OFFSET_OFFSET 0 +# define INTC_INTPR4_OFFSET_SIZE 24 +#define INTC_INTREQ4 0x110 +# define INTC_INTREQ4_IREQUEST128_OFFSET 0 +# define INTC_INTREQ4_IREQUEST128_SIZE 1 +#define INTC_INTPR5 0x14 +# define INTC_INTPR5_INTLEV_OFFSET 30 +# define INTC_INTPR5_INTLEV_SIZE 2 +# define INTC_INTPR5_OFFSET_OFFSET 0 +# define INTC_INTPR5_OFFSET_SIZE 24 +#define INTC_INTREQ5 0x114 +# define INTC_INTREQ5_IREQUEST160_OFFSET 0 +# define INTC_INTREQ5_IREQUEST160_SIZE 1 +#define INTC_INTPR6 0x18 +# define INTC_INTPR6_INTLEV_OFFSET 30 +# define INTC_INTPR6_INTLEV_SIZE 2 +# define INTC_INTPR6_OFFSET_OFFSET 0 +# define INTC_INTPR6_OFFSET_SIZE 24 +#define INTC_INTREQ6 0x118 +# define INTC_INTREQ6_IREQUEST192_OFFSET 0 +# define INTC_INTREQ6_IREQUEST192_SIZE 1 +#define INTC_INTPR7 0x1c +# define INTC_INTPR7_INTLEV_OFFSET 30 +# define INTC_INTPR7_INTLEV_SIZE 2 +# define INTC_INTPR7_OFFSET_OFFSET 0 +# define INTC_INTPR7_OFFSET_SIZE 24 +#define INTC_INTREQ7 0x11c +# define INTC_INTREQ7_IREQUEST224_OFFSET 0 +# define INTC_INTREQ7_IREQUEST224_SIZE 1 +#define INTC_INTPR8 0x20 +# define INTC_INTPR8_INTLEV_OFFSET 30 +# define INTC_INTPR8_INTLEV_SIZE 2 +# define INTC_INTPR8_OFFSET_OFFSET 0 +# define INTC_INTPR8_OFFSET_SIZE 24 +#define INTC_INTREQ8 0x120 +# define INTC_INTREQ8_IREQUEST256_OFFSET 0 +# define INTC_INTREQ8_IREQUEST256_SIZE 1 +#define INTC_INTPR9 0x24 +# define INTC_INTPR9_INTLEV_OFFSET 30 +# define INTC_INTPR9_INTLEV_SIZE 2 +# define INTC_INTPR9_OFFSET_OFFSET 0 +# define INTC_INTPR9_OFFSET_SIZE 24 +#define INTC_INTREQ9 0x124 +# define INTC_INTREQ9_IREQUEST288_OFFSET 0 +# define INTC_INTREQ9_IREQUEST288_SIZE 1 +#define INTC_INTPR10 0x28 +# define INTC_INTPR10_INTLEV_OFFSET 30 +# define INTC_INTPR10_INTLEV_SIZE 2 +# define INTC_INTPR10_OFFSET_OFFSET 0 +# define INTC_INTPR10_OFFSET_SIZE 24 +#define INTC_INTREQ10 0x128 +# define INTC_INTREQ10_IREQUEST320_OFFSET 0 +# define INTC_INTREQ10_IREQUEST320_SIZE 1 +#define INTC_INTPR11 0x2c +# define INTC_INTPR11_INTLEV_OFFSET 30 +# define INTC_INTPR11_INTLEV_SIZE 2 +# define INTC_INTPR11_OFFSET_OFFSET 0 +# define INTC_INTPR11_OFFSET_SIZE 24 +#define INTC_INTREQ11 0x12c +# define INTC_INTREQ11_IREQUEST352_OFFSET 0 +# define INTC_INTREQ11_IREQUEST352_SIZE 1 +#define INTC_INTPR12 0x30 +# define INTC_INTPR12_INTLEV_OFFSET 30 +# define INTC_INTPR12_INTLEV_SIZE 2 +# define INTC_INTPR12_OFFSET_OFFSET 0 +# define INTC_INTPR12_OFFSET_SIZE 24 +#define INTC_INTREQ12 0x130 +# define INTC_INTREQ12_IREQUEST384_OFFSET 0 +# define INTC_INTREQ12_IREQUEST384_SIZE 1 +#define INTC_INTPR13 0x34 +# define INTC_INTPR13_INTLEV_OFFSET 30 +# define INTC_INTPR13_INTLEV_SIZE 2 +# define INTC_INTPR13_OFFSET_OFFSET 0 +# define INTC_INTPR13_OFFSET_SIZE 24 +#define INTC_INTREQ13 0x134 +# define INTC_INTREQ13_IREQUEST416_OFFSET 0 +# define INTC_INTREQ13_IREQUEST416_SIZE 1 +#define INTC_INTPR14 0x38 +# define INTC_INTPR14_INTLEV_OFFSET 30 +# define INTC_INTPR14_INTLEV_SIZE 2 +# define INTC_INTPR14_OFFSET_OFFSET 0 +# define INTC_INTPR14_OFFSET_SIZE 24 +#define INTC_INTREQ14 0x138 +# define INTC_INTREQ14_IREQUEST448_OFFSET 0 +# define INTC_INTREQ14_IREQUEST448_SIZE 1 +#define INTC_INTPR15 0x3c +# define INTC_INTPR15_INTLEV_OFFSET 30 +# define INTC_INTPR15_INTLEV_SIZE 2 +# define INTC_INTPR15_OFFSET_OFFSET 0 +# define INTC_INTPR15_OFFSET_SIZE 24 +#define INTC_INTREQ15 0x13c +# define INTC_INTREQ15_IREQUEST480_OFFSET 0 +# define INTC_INTREQ15_IREQUEST480_SIZE 1 +#define INTC_INTPR16 0x40 +# define INTC_INTPR16_INTLEV_OFFSET 30 +# define INTC_INTPR16_INTLEV_SIZE 2 +# define INTC_INTPR16_OFFSET_OFFSET 0 +# define INTC_INTPR16_OFFSET_SIZE 24 +#define INTC_INTREQ16 0x140 +# define INTC_INTREQ16_IREQUEST512_OFFSET 0 +# define INTC_INTREQ16_IREQUEST512_SIZE 1 +#define INTC_INTPR17 0x44 +# define INTC_INTPR17_INTLEV_OFFSET 30 +# define INTC_INTPR17_INTLEV_SIZE 2 +# define INTC_INTPR17_OFFSET_OFFSET 0 +# define INTC_INTPR17_OFFSET_SIZE 24 +#define INTC_INTREQ17 0x144 +# define INTC_INTREQ17_IREQUEST544_OFFSET 0 +# define INTC_INTREQ17_IREQUEST544_SIZE 1 +#define INTC_INTPR18 0x48 +# define INTC_INTPR18_INTLEV_OFFSET 30 +# define INTC_INTPR18_INTLEV_SIZE 2 +# define INTC_INTPR18_OFFSET_OFFSET 0 +# define INTC_INTPR18_OFFSET_SIZE 24 +#define INTC_INTREQ18 0x148 +# define INTC_INTREQ18_IREQUEST576_OFFSET 0 +# define INTC_INTREQ18_IREQUEST576_SIZE 1 +#define INTC_INTPR19 0x4c +# define INTC_INTPR19_INTLEV_OFFSET 30 +# define INTC_INTPR19_INTLEV_SIZE 2 +# define INTC_INTPR19_OFFSET_OFFSET 0 +# define INTC_INTPR19_OFFSET_SIZE 24 +#define INTC_INTREQ19 0x14c +# define INTC_INTREQ19_IREQUEST608_OFFSET 0 +# define INTC_INTREQ19_IREQUEST608_SIZE 1 +# define INTC_INTREQ19_IREQUEST609_OFFSET 1 +# define INTC_INTREQ19_IREQUEST609_SIZE 1 +# define INTC_INTREQ19_IREQUEST610_OFFSET 2 +# define INTC_INTREQ19_IREQUEST610_SIZE 1 +# define INTC_INTREQ19_IREQUEST611_OFFSET 3 +# define INTC_INTREQ19_IREQUEST611_SIZE 1 +#define INTC_INTPR20 0x50 +# define INTC_INTPR20_INTLEV_OFFSET 30 +# define INTC_INTPR20_INTLEV_SIZE 2 +# define INTC_INTPR20_OFFSET_OFFSET 0 +# define INTC_INTPR20_OFFSET_SIZE 24 +#define INTC_INTREQ20 0x150 +# define INTC_INTREQ20_IREQUEST640_OFFSET 0 +# define INTC_INTREQ20_IREQUEST640_SIZE 1 +#define INTC_INTPR21 0x54 +# define INTC_INTPR21_INTLEV_OFFSET 30 +# define INTC_INTPR21_INTLEV_SIZE 2 +# define INTC_INTPR21_OFFSET_OFFSET 0 +# define INTC_INTPR21_OFFSET_SIZE 24 +#define INTC_INTREQ21 0x154 +# define INTC_INTREQ21_IREQUEST672_OFFSET 0 +# define INTC_INTREQ21_IREQUEST672_SIZE 1 +#define INTC_INTPR22 0x58 +# define INTC_INTPR22_INTLEV_OFFSET 30 +# define INTC_INTPR22_INTLEV_SIZE 2 +# define INTC_INTPR22_OFFSET_OFFSET 0 +# define INTC_INTPR22_OFFSET_SIZE 24 +#define INTC_INTREQ22 0x158 +# define INTC_INTREQ22_IREQUEST704_OFFSET 0 +# define INTC_INTREQ22_IREQUEST704_SIZE 1 +# define INTC_INTREQ22_IREQUEST705_OFFSET 1 +# define INTC_INTREQ22_IREQUEST705_SIZE 1 +# define INTC_INTREQ22_IREQUEST706_OFFSET 2 +# define INTC_INTREQ22_IREQUEST706_SIZE 1 +#define INTC_INTPR23 0x5c +# define INTC_INTPR23_INTLEV_OFFSET 30 +# define INTC_INTPR23_INTLEV_SIZE 2 +# define INTC_INTPR23_OFFSET_OFFSET 0 +# define INTC_INTPR23_OFFSET_SIZE 24 +#define INTC_INTREQ23 0x15c +# define INTC_INTREQ23_IREQUEST736_OFFSET 0 +# define INTC_INTREQ23_IREQUEST736_SIZE 1 +# define INTC_INTREQ23_IREQUEST737_OFFSET 1 +# define INTC_INTREQ23_IREQUEST737_SIZE 1 +# define INTC_INTREQ23_IREQUEST738_OFFSET 2 +# define INTC_INTREQ23_IREQUEST738_SIZE 1 +#define INTC_INTPR24 0x60 +# define INTC_INTPR24_INTLEV_OFFSET 30 +# define INTC_INTPR24_INTLEV_SIZE 2 +# define INTC_INTPR24_OFFSET_OFFSET 0 +# define INTC_INTPR24_OFFSET_SIZE 24 +#define INTC_INTREQ24 0x160 +# define INTC_INTREQ24_IREQUEST768_OFFSET 0 +# define INTC_INTREQ24_IREQUEST768_SIZE 1 +#define INTC_INTPR25 0x64 +# define INTC_INTPR25_INTLEV_OFFSET 30 +# define INTC_INTPR25_INTLEV_SIZE 2 +# define INTC_INTPR25_OFFSET_OFFSET 0 +# define INTC_INTPR25_OFFSET_SIZE 24 +#define INTC_INTREQ25 0x164 +# define INTC_INTREQ25_IREQUEST800_OFFSET 0 +# define INTC_INTREQ25_IREQUEST800_SIZE 1 +#define INTC_INTPR26 0x68 +# define INTC_INTPR26_INTLEV_OFFSET 30 +# define INTC_INTPR26_INTLEV_SIZE 2 +# define INTC_INTPR26_OFFSET_OFFSET 0 +# define INTC_INTPR26_OFFSET_SIZE 24 +#define INTC_INTREQ26 0x168 +# define INTC_INTREQ26_IREQUEST832_OFFSET 0 +# define INTC_INTREQ26_IREQUEST832_SIZE 1 +#define INTC_INTPR27 0x6c +# define INTC_INTPR27_INTLEV_OFFSET 30 +# define INTC_INTPR27_INTLEV_SIZE 2 +# define INTC_INTPR27_OFFSET_OFFSET 0 +# define INTC_INTPR27_OFFSET_SIZE 24 +#define INTC_INTREQ27 0x16c +# define INTC_INTREQ27_IREQUEST864_OFFSET 0 +# define INTC_INTREQ27_IREQUEST864_SIZE 1 +#define INTC_INTPR28 0x70 +# define INTC_INTPR28_INTLEV_OFFSET 30 +# define INTC_INTPR28_INTLEV_SIZE 2 +# define INTC_INTPR28_OFFSET_OFFSET 0 +# define INTC_INTPR28_OFFSET_SIZE 24 +#define INTC_INTREQ28 0x170 +# define INTC_INTREQ28_IREQUEST896_OFFSET 0 +# define INTC_INTREQ28_IREQUEST896_SIZE 1 +#define INTC_INTPR29 0x74 +# define INTC_INTPR29_INTLEV_OFFSET 30 +# define INTC_INTPR29_INTLEV_SIZE 2 +# define INTC_INTPR29_OFFSET_OFFSET 0 +# define INTC_INTPR29_OFFSET_SIZE 24 +#define INTC_INTREQ29 0x174 +# define INTC_INTREQ29_IREQUEST928_OFFSET 0 +# define INTC_INTREQ29_IREQUEST928_SIZE 1 +#define INTC_INTPR30 0x78 +# define INTC_INTPR30_INTLEV_OFFSET 30 +# define INTC_INTPR30_INTLEV_SIZE 2 +# define INTC_INTPR30_OFFSET_OFFSET 0 +# define INTC_INTPR30_OFFSET_SIZE 24 +#define INTC_INTREQ30 0x178 +# define INTC_INTREQ30_IREQUEST960_OFFSET 0 +# define INTC_INTREQ30_IREQUEST960_SIZE 1 +#define INTC_INTPR31 0x7c +# define INTC_INTPR31_INTLEV_OFFSET 30 +# define INTC_INTPR31_INTLEV_SIZE 2 +# define INTC_INTPR31_OFFSET_OFFSET 0 +# define INTC_INTPR31_OFFSET_SIZE 24 +#define INTC_INTREQ31 0x17c +# define INTC_INTREQ31_IREQUEST992_OFFSET 0 +# define INTC_INTREQ31_IREQUEST992_SIZE 1 +#define INTC_INTPR32 0x80 +# define INTC_INTPR32_INTLEV_OFFSET 30 +# define INTC_INTPR32_INTLEV_SIZE 2 +# define INTC_INTPR32_OFFSET_OFFSET 0 +# define INTC_INTPR32_OFFSET_SIZE 24 +#define INTC_INTREQ32 0x180 +# define INTC_INTREQ32_IREQUEST1024_OFFSET 0 +# define INTC_INTREQ32_IREQUEST1024_SIZE 1 +#define INTC_INTCAUSE0 0x20c +# define INTC_INTCAUSE0_CAUSEGRP_OFFSET 0 +# define INTC_INTCAUSE0_CAUSEGRP_SIZE 6 +#define INTC_INTCAUSE1 0x208 +# define INTC_INTCAUSE1_CAUSEGRP_OFFSET 0 +# define INTC_INTCAUSE1_CAUSEGRP_SIZE 6 +#define INTC_INTCAUSE2 0x204 +# define INTC_INTCAUSE2_CAUSEGRP_OFFSET 0 +# define INTC_INTCAUSE2_CAUSEGRP_SIZE 6 +#define INTC_INTCAUSE3 0x200 +# define INTC_INTCAUSE3_CAUSEGRP_OFFSET 0 +# define INTC_INTCAUSE3_CAUSEGRP_SIZE 6 + +#define INTC_BIT(name) (1 << INTC_##name##_OFFSET) +#define INTC_MKBF(name, value) (((value) & ((1 << INTC_##name##_SIZE) - 1)) << INTC_##name##_OFFSET) +#define INTC_GETBF(name, value) (((value) >> INTC_##name##_OFFSET) & ((1 << INTC_##name##_SIZE) - 1)) + +#define intc_readl(port,reg) readl((port)->regs + INTC_##reg) +#define intc_writel(port,reg,value) writel((value), (port)->regs + INTC_##reg) + +#endif /* __ASM_AVR32_PERIHP_INTC_H__ */
diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c new file mode 100644 index 0000000..d3aabfc --- /dev/null +++ b/arch/avr32/mach-at32ap/pio.c
@@ -0,0 +1,118 @@ +/* + * Atmel PIO2 Port Multiplexer support + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/clk.h> +#include <linux/debugfs.h> +#include <linux/fs.h> +#include <linux/platform_device.h> + +#include <asm/io.h> + +#include <asm/arch/portmux.h> + +#include "pio.h" + +#define MAX_NR_PIO_DEVICES 8 + +struct pio_device { + void __iomem *regs; + const struct platform_device *pdev; + struct clk *clk; + u32 alloc_mask; + char name[32]; +}; + +static struct pio_device pio_dev[MAX_NR_PIO_DEVICES]; + +void portmux_set_func(unsigned int portmux_id, unsigned int pin_id, + unsigned int function_id) +{ + struct pio_device *pio; + u32 mask = 1 << pin_id; + + BUG_ON(portmux_id >= MAX_NR_PIO_DEVICES); + + pio = &pio_dev[portmux_id]; + + if (function_id) + pio_writel(pio, BSR, mask); + else + pio_writel(pio, ASR, mask); + pio_writel(pio, PDR, mask); +} + +static int __init pio_probe(struct platform_device *pdev) +{ + struct pio_device *pio = NULL; + + BUG_ON(pdev->id >= MAX_NR_PIO_DEVICES); + pio = &pio_dev[pdev->id]; + BUG_ON(!pio->regs); + + /* TODO: Interrupts */ + + platform_set_drvdata(pdev, pio); + + printk(KERN_INFO "%s: Atmel Port Multiplexer at 0x%p (irq %d)\n", + pio->name, pio->regs, platform_get_irq(pdev, 0)); + + return 0; +} + +static struct platform_driver pio_driver = { + .probe = pio_probe, + .driver = { + .name = "pio", + }, +}; + +static int __init pio_init(void) +{ + return platform_driver_register(&pio_driver); +} +subsys_initcall(pio_init); + +void __init at32_init_pio(struct platform_device *pdev) +{ + struct resource *regs; + struct pio_device *pio; + + if (pdev->id > MAX_NR_PIO_DEVICES) { + dev_err(&pdev->dev, "only %d PIO devices supported\n", + MAX_NR_PIO_DEVICES); + return; + } + + pio = &pio_dev[pdev->id]; + snprintf(pio->name, sizeof(pio->name), "pio%d", pdev->id); + + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!regs) { + dev_err(&pdev->dev, "no mmio resource defined\n"); + return; + } + + pio->clk = clk_get(&pdev->dev, "mck"); + if (IS_ERR(pio->clk)) + /* + * This is a fatal error, but if we continue we might + * be so lucky that we manage to initialize the + * console and display this message... + */ + dev_err(&pdev->dev, "no mck clock defined\n"); + else + clk_enable(pio->clk); + + pio->pdev = pdev; + pio->regs = ioremap(regs->start, regs->end - regs->start + 1); + + pio_writel(pio, ODR, ~0UL); + pio_writel(pio, PER, ~0UL); +}
diff --git a/arch/avr32/mach-at32ap/pio.h b/arch/avr32/mach-at32ap/pio.h new file mode 100644 index 0000000..cfea123 --- /dev/null +++ b/arch/avr32/mach-at32ap/pio.h
@@ -0,0 +1,178 @@ +/* + * Atmel PIO2 Port Multiplexer support + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ARCH_AVR32_AT32AP_PIO_H__ +#define __ARCH_AVR32_AT32AP_PIO_H__ + +/* PIO register offsets */ +#define PIO_PER 0x0000 +#define PIO_PDR 0x0004 +#define PIO_PSR 0x0008 +#define PIO_OER 0x0010 +#define PIO_ODR 0x0014 +#define PIO_OSR 0x0018 +#define PIO_IFER 0x0020 +#define PIO_IFDR 0x0024 +#define PIO_ISFR 0x0028 +#define PIO_SODR 0x0030 +#define PIO_CODR 0x0034 +#define PIO_ODSR 0x0038 +#define PIO_PDSR 0x003c +#define PIO_IER 0x0040 +#define PIO_IDR 0x0044 +#define PIO_IMR 0x0048 +#define PIO_ISR 0x004c +#define PIO_MDER 0x0050 +#define PIO_MDDR 0x0054 +#define PIO_MDSR 0x0058 +#define PIO_PUDR 0x0060 +#define PIO_PUER 0x0064 +#define PIO_PUSR 0x0068 +#define PIO_ASR 0x0070 +#define PIO_BSR 0x0074 +#define PIO_ABSR 0x0078 +#define PIO_OWER 0x00a0 +#define PIO_OWDR 0x00a4 +#define PIO_OWSR 0x00a8 + +/* Bitfields in PER */ + +/* Bitfields in PDR */ + +/* Bitfields in PSR */ + +/* Bitfields in OER */ + +/* Bitfields in ODR */ + +/* Bitfields in OSR */ + +/* Bitfields in IFER */ + +/* Bitfields in IFDR */ + +/* Bitfields in ISFR */ + +/* Bitfields in SODR */ + +/* Bitfields in CODR */ + +/* Bitfields in ODSR */ + +/* Bitfields in PDSR */ + +/* Bitfields in IER */ + +/* Bitfields in IDR */ + +/* Bitfields in IMR */ + +/* Bitfields in ISR */ + +/* Bitfields in MDER */ + +/* Bitfields in MDDR */ + +/* Bitfields in MDSR */ + +/* Bitfields in PUDR */ + +/* Bitfields in PUER */ + +/* Bitfields in PUSR */ + +/* Bitfields in ASR */ + +/* Bitfields in BSR */ + +/* Bitfields in ABSR */ +#define PIO_P0_OFFSET 0 +#define PIO_P0_SIZE 1 +#define PIO_P1_OFFSET 1 +#define PIO_P1_SIZE 1 +#define PIO_P2_OFFSET 2 +#define PIO_P2_SIZE 1 +#define PIO_P3_OFFSET 3 +#define PIO_P3_SIZE 1 +#define PIO_P4_OFFSET 4 +#define PIO_P4_SIZE 1 +#define PIO_P5_OFFSET 5 +#define PIO_P5_SIZE 1 +#define PIO_P6_OFFSET 6 +#define PIO_P6_SIZE 1 +#define PIO_P7_OFFSET 7 +#define PIO_P7_SIZE 1 +#define PIO_P8_OFFSET 8 +#define PIO_P8_SIZE 1 +#define PIO_P9_OFFSET 9 +#define PIO_P9_SIZE 1 +#define PIO_P10_OFFSET 10 +#define PIO_P10_SIZE 1 +#define PIO_P11_OFFSET 11 +#define PIO_P11_SIZE 1 +#define PIO_P12_OFFSET 12 +#define PIO_P12_SIZE 1 +#define PIO_P13_OFFSET 13 +#define PIO_P13_SIZE 1 +#define PIO_P14_OFFSET 14 +#define PIO_P14_SIZE 1 +#define PIO_P15_OFFSET 15 +#define PIO_P15_SIZE 1 +#define PIO_P16_OFFSET 16 +#define PIO_P16_SIZE 1 +#define PIO_P17_OFFSET 17 +#define PIO_P17_SIZE 1 +#define PIO_P18_OFFSET 18 +#define PIO_P18_SIZE 1 +#define PIO_P19_OFFSET 19 +#define PIO_P19_SIZE 1 +#define PIO_P20_OFFSET 20 +#define PIO_P20_SIZE 1 +#define PIO_P21_OFFSET 21 +#define PIO_P21_SIZE 1 +#define PIO_P22_OFFSET 22 +#define PIO_P22_SIZE 1 +#define PIO_P23_OFFSET 23 +#define PIO_P23_SIZE 1 +#define PIO_P24_OFFSET 24 +#define PIO_P24_SIZE 1 +#define PIO_P25_OFFSET 25 +#define PIO_P25_SIZE 1 +#define PIO_P26_OFFSET 26 +#define PIO_P26_SIZE 1 +#define PIO_P27_OFFSET 27 +#define PIO_P27_SIZE 1 +#define PIO_P28_OFFSET 28 +#define PIO_P28_SIZE 1 +#define PIO_P29_OFFSET 29 +#define PIO_P29_SIZE 1 +#define PIO_P30_OFFSET 30 +#define PIO_P30_SIZE 1 +#define PIO_P31_OFFSET 31 +#define PIO_P31_SIZE 1 + +/* Bitfields in OWER */ + +/* Bitfields in OWDR */ + +/* Bitfields in OWSR */ + +/* Bit manipulation macros */ +#define PIO_BIT(name) (1 << PIO_##name##_OFFSET) +#define PIO_BF(name,value) (((value) & ((1 << PIO_##name##_SIZE) - 1)) << PIO_##name##_OFFSET) +#define PIO_BFEXT(name,value) (((value) >> PIO_##name##_OFFSET) & ((1 << PIO_##name##_SIZE) - 1)) +#define PIO_BFINS(name,value,old) (((old) & ~(((1 << PIO_##name##_SIZE) - 1) << PIO_##name##_OFFSET)) | PIO_BF(name,value)) + +/* Register access macros */ +#define pio_readl(port,reg) readl((port)->regs + PIO_##reg) +#define pio_writel(port,reg,value) writel((value), (port)->regs + PIO_##reg) + +void at32_init_pio(struct platform_device *pdev); + +#endif /* __ARCH_AVR32_AT32AP_PIO_H__ */
diff --git a/arch/avr32/mach-at32ap/sm.c b/arch/avr32/mach-at32ap/sm.c new file mode 100644 index 0000000..03306eb --- /dev/null +++ b/arch/avr32/mach-at32ap/sm.c
@@ -0,0 +1,289 @@ +/* + * System Manager driver for AT32AP CPUs + * + * Copyright (C) 2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/random.h> +#include <linux/spinlock.h> + +#include <asm/intc.h> +#include <asm/io.h> +#include <asm/irq.h> + +#include <asm/arch/sm.h> + +#include "sm.h" + +#define SM_EIM_IRQ_RESOURCE 1 +#define SM_PM_IRQ_RESOURCE 2 +#define SM_RTC_IRQ_RESOURCE 3 + +#define to_eim(irqc) container_of(irqc, struct at32_sm, irqc) + +struct at32_sm system_manager; + +int __init at32_sm_init(void) +{ + struct resource *regs; + struct at32_sm *sm = &system_manager; + int ret = -ENXIO; + + regs = platform_get_resource(&at32_sm_device, IORESOURCE_MEM, 0); + if (!regs) + goto fail; + + spin_lock_init(&sm->lock); + sm->pdev = &at32_sm_device; + + ret = -ENOMEM; + sm->regs = ioremap(regs->start, regs->end - regs->start + 1); + if (!sm->regs) + goto fail; + + return 0; + +fail: + printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret); + return ret; +} + +/* + * External Interrupt Module (EIM). + * + * EIM gets level- or edge-triggered interrupts of either polarity + * from the outside and converts it to active-high level-triggered + * interrupts that the internal interrupt controller can handle. EIM + * also provides masking/unmasking of interrupts, as well as + * acknowledging of edge-triggered interrupts. + */ + +static irqreturn_t spurious_eim_interrupt(int irq, void *dev_id, + struct pt_regs *regs) +{ + printk(KERN_WARNING "Spurious EIM interrupt %d\n", irq); + disable_irq(irq); + return IRQ_NONE; +} + +static struct irqaction eim_spurious_action = { + .handler = spurious_eim_interrupt, +}; + +static irqreturn_t eim_handle_irq(int irq, void *dev_id, struct pt_regs *regs) +{ + struct irq_controller * irqc = dev_id; + struct at32_sm *sm = to_eim(irqc); + unsigned long pending; + + /* + * No need to disable interrupts globally. The interrupt + * level relevant to this group must be masked all the time, + * so we know that this particular EIM instance will not be + * re-entered. + */ + spin_lock(&sm->lock); + + pending = intc_get_pending(sm->irqc.irq_group); + if (unlikely(!pending)) { + printk(KERN_ERR "EIM (group %u): No interrupts pending!\n", + sm->irqc.irq_group); + goto unlock; + } + + do { + struct irqaction *action; + unsigned int i; + + i = fls(pending) - 1; + pending &= ~(1 << i); + action = sm->action[i]; + + /* Acknowledge the interrupt */ + sm_writel(sm, EIM_ICR, 1 << i); + + spin_unlock(&sm->lock); + + if (action->flags & SA_INTERRUPT) + local_irq_disable(); + action->handler(sm->irqc.first_irq + i, action->dev_id, regs); + local_irq_enable(); + spin_lock(&sm->lock); + if (action->flags & SA_SAMPLE_RANDOM) + add_interrupt_randomness(sm->irqc.first_irq + i); + } while (pending); + +unlock: + spin_unlock(&sm->lock); + return IRQ_HANDLED; +} + +static void eim_mask(struct irq_controller *irqc, unsigned int irq) +{ + struct at32_sm *sm = to_eim(irqc); + unsigned int i; + + i = irq - sm->irqc.first_irq; + sm_writel(sm, EIM_IDR, 1 << i); +} + +static void eim_unmask(struct irq_controller *irqc, unsigned int irq) +{ + struct at32_sm *sm = to_eim(irqc); + unsigned int i; + + i = irq - sm->irqc.first_irq; + sm_writel(sm, EIM_IER, 1 << i); +} + +static int eim_setup(struct irq_controller *irqc, unsigned int irq, + struct irqaction *action) +{ + struct at32_sm *sm = to_eim(irqc); + sm->action[irq - sm->irqc.first_irq] = action; + /* Acknowledge earlier interrupts */ + sm_writel(sm, EIM_ICR, (1<<(irq - sm->irqc.first_irq))); + eim_unmask(irqc, irq); + return 0; +} + +static void eim_free(struct irq_controller *irqc, unsigned int irq, + void *dev) +{ + struct at32_sm *sm = to_eim(irqc); + eim_mask(irqc, irq); + sm->action[irq - sm->irqc.first_irq] = &eim_spurious_action; +} + +static int eim_set_type(struct irq_controller *irqc, unsigned int irq, + unsigned int type) +{ + struct at32_sm *sm = to_eim(irqc); + unsigned long flags; + u32 value, pattern; + + spin_lock_irqsave(&sm->lock, flags); + + pattern = 1 << (irq - sm->irqc.first_irq); + + value = sm_readl(sm, EIM_MODE); + if (type & IRQ_TYPE_LEVEL) + value |= pattern; + else + value &= ~pattern; + sm_writel(sm, EIM_MODE, value); + value = sm_readl(sm, EIM_EDGE); + if (type & IRQ_EDGE_RISING) + value |= pattern; + else + value &= ~pattern; + sm_writel(sm, EIM_EDGE, value); + value = sm_readl(sm, EIM_LEVEL); + if (type & IRQ_LEVEL_HIGH) + value |= pattern; + else + value &= ~pattern; + sm_writel(sm, EIM_LEVEL, value); + + spin_unlock_irqrestore(&sm->lock, flags); + + return 0; +} + +static unsigned int eim_get_type(struct irq_controller *irqc, + unsigned int irq) +{ + struct at32_sm *sm = to_eim(irqc); + unsigned long flags; + unsigned int type = 0; + u32 mode, edge, level, pattern; + + pattern = 1 << (irq - sm->irqc.first_irq); + + spin_lock_irqsave(&sm->lock, flags); + mode = sm_readl(sm, EIM_MODE); + edge = sm_readl(sm, EIM_EDGE); + level = sm_readl(sm, EIM_LEVEL); + spin_unlock_irqrestore(&sm->lock, flags); + + if (mode & pattern) + type |= IRQ_TYPE_LEVEL; + if (edge & pattern) + type |= IRQ_EDGE_RISING; + if (level & pattern) + type |= IRQ_LEVEL_HIGH; + + return type; +} + +static struct irq_controller_class eim_irq_class = { + .typename = "EIM", + .handle = eim_handle_irq, + .setup = eim_setup, + .free = eim_free, + .mask = eim_mask, + .unmask = eim_unmask, + .set_type = eim_set_type, + .get_type = eim_get_type, +}; + +static int __init eim_init(void) +{ + struct at32_sm *sm = &system_manager; + unsigned int i; + u32 pattern; + int ret; + + /* + * The EIM is really the same module as SM, so register + * mapping, etc. has been taken care of already. + */ + + /* + * Find out how many interrupt lines that are actually + * implemented in hardware. + */ + sm_writel(sm, EIM_IDR, ~0UL); + sm_writel(sm, EIM_MODE, ~0UL); + pattern = sm_readl(sm, EIM_MODE); + sm->irqc.nr_irqs = fls(pattern); + + ret = -ENOMEM; + sm->action = kmalloc(sizeof(*sm->action) * sm->irqc.nr_irqs, + GFP_KERNEL); + if (!sm->action) + goto out; + + for (i = 0; i < sm->irqc.nr_irqs; i++) + sm->action[i] = &eim_spurious_action; + + spin_lock_init(&sm->lock); + sm->irqc.irq_group = sm->pdev->resource[SM_EIM_IRQ_RESOURCE].start; + sm->irqc.class = &eim_irq_class; + + ret = intc_register_controller(&sm->irqc); + if (ret < 0) + goto out_free_actions; + + printk("EIM: External Interrupt Module at 0x%p, IRQ group %u\n", + sm->regs, sm->irqc.irq_group); + printk("EIM: Handling %u external IRQs, starting with IRQ%u\n", + sm->irqc.nr_irqs, sm->irqc.first_irq); + + return 0; + +out_free_actions: + kfree(sm->action); +out: + return ret; +} +arch_initcall(eim_init);
diff --git a/arch/avr32/mach-at32ap/sm.h b/arch/avr32/mach-at32ap/sm.h new file mode 100644 index 0000000..2756582 --- /dev/null +++ b/arch/avr32/mach-at32ap/sm.h
@@ -0,0 +1,240 @@ +/* + * Register definitions for SM + * + * System Manager + */ +#ifndef __ASM_AVR32_SM_H__ +#define __ASM_AVR32_SM_H__ + +/* SM register offsets */ +#define SM_PM_MCCTRL 0x0000 +#define SM_PM_CKSEL 0x0004 +#define SM_PM_CPU_MASK 0x0008 +#define SM_PM_HSB_MASK 0x000c +#define SM_PM_PBA_MASK 0x0010 +#define SM_PM_PBB_MASK 0x0014 +#define SM_PM_PLL0 0x0020 +#define SM_PM_PLL1 0x0024 +#define SM_PM_VCTRL 0x0030 +#define SM_PM_VMREF 0x0034 +#define SM_PM_VMV 0x0038 +#define SM_PM_IER 0x0040 +#define SM_PM_IDR 0x0044 +#define SM_PM_IMR 0x0048 +#define SM_PM_ISR 0x004c +#define SM_PM_ICR 0x0050 +#define SM_PM_GCCTRL 0x0060 +#define SM_RTC_CTRL 0x0080 +#define SM_RTC_VAL 0x0084 +#define SM_RTC_TOP 0x0088 +#define SM_RTC_IER 0x0090 +#define SM_RTC_IDR 0x0094 +#define SM_RTC_IMR 0x0098 +#define SM_RTC_ISR 0x009c +#define SM_RTC_ICR 0x00a0 +#define SM_WDT_CTRL 0x00b0 +#define SM_WDT_CLR 0x00b4 +#define SM_WDT_EXT 0x00b8 +#define SM_RC_RCAUSE 0x00c0 +#define SM_EIM_IER 0x0100 +#define SM_EIM_IDR 0x0104 +#define SM_EIM_IMR 0x0108 +#define SM_EIM_ISR 0x010c +#define SM_EIM_ICR 0x0110 +#define SM_EIM_MODE 0x0114 +#define SM_EIM_EDGE 0x0118 +#define SM_EIM_LEVEL 0x011c +#define SM_EIM_TEST 0x0120 +#define SM_EIM_NMIC 0x0124 + +/* Bitfields in PM_MCCTRL */ + +/* Bitfields in PM_CKSEL */ +#define SM_CPUSEL_OFFSET 0 +#define SM_CPUSEL_SIZE 3 +#define SM_CPUDIV_OFFSET 7 +#define SM_CPUDIV_SIZE 1 +#define SM_HSBSEL_OFFSET 8 +#define SM_HSBSEL_SIZE 3 +#define SM_HSBDIV_OFFSET 15 +#define SM_HSBDIV_SIZE 1 +#define SM_PBASEL_OFFSET 16 +#define SM_PBASEL_SIZE 3 +#define SM_PBADIV_OFFSET 23 +#define SM_PBADIV_SIZE 1 +#define SM_PBBSEL_OFFSET 24 +#define SM_PBBSEL_SIZE 3 +#define SM_PBBDIV_OFFSET 31 +#define SM_PBBDIV_SIZE 1 + +/* Bitfields in PM_CPU_MASK */ + +/* Bitfields in PM_HSB_MASK */ + +/* Bitfields in PM_PBA_MASK */ + +/* Bitfields in PM_PBB_MASK */ + +/* Bitfields in PM_PLL0 */ +#define SM_PLLEN_OFFSET 0 +#define SM_PLLEN_SIZE 1 +#define SM_PLLOSC_OFFSET 1 +#define SM_PLLOSC_SIZE 1 +#define SM_PLLOPT_OFFSET 2 +#define SM_PLLOPT_SIZE 3 +#define SM_PLLDIV_OFFSET 8 +#define SM_PLLDIV_SIZE 8 +#define SM_PLLMUL_OFFSET 16 +#define SM_PLLMUL_SIZE 8 +#define SM_PLLCOUNT_OFFSET 24 +#define SM_PLLCOUNT_SIZE 6 +#define SM_PLLTEST_OFFSET 31 +#define SM_PLLTEST_SIZE 1 + +/* Bitfields in PM_PLL1 */ + +/* Bitfields in PM_VCTRL */ +#define SM_VAUTO_OFFSET 0 +#define SM_VAUTO_SIZE 1 +#define SM_PM_VCTRL_VAL_OFFSET 8 +#define SM_PM_VCTRL_VAL_SIZE 7 + +/* Bitfields in PM_VMREF */ +#define SM_REFSEL_OFFSET 0 +#define SM_REFSEL_SIZE 4 + +/* Bitfields in PM_VMV */ +#define SM_PM_VMV_VAL_OFFSET 0 +#define SM_PM_VMV_VAL_SIZE 8 + +/* Bitfields in PM_IER */ + +/* Bitfields in PM_IDR */ + +/* Bitfields in PM_IMR */ + +/* Bitfields in PM_ISR */ + +/* Bitfields in PM_ICR */ +#define SM_LOCK0_OFFSET 0 +#define SM_LOCK0_SIZE 1 +#define SM_LOCK1_OFFSET 1 +#define SM_LOCK1_SIZE 1 +#define SM_WAKE_OFFSET 2 +#define SM_WAKE_SIZE 1 +#define SM_VOK_OFFSET 3 +#define SM_VOK_SIZE 1 +#define SM_VMRDY_OFFSET 4 +#define SM_VMRDY_SIZE 1 +#define SM_CKRDY_OFFSET 5 +#define SM_CKRDY_SIZE 1 + +/* Bitfields in PM_GCCTRL */ +#define SM_OSCSEL_OFFSET 0 +#define SM_OSCSEL_SIZE 1 +#define SM_PLLSEL_OFFSET 1 +#define SM_PLLSEL_SIZE 1 +#define SM_CEN_OFFSET 2 +#define SM_CEN_SIZE 1 +#define SM_CPC_OFFSET 3 +#define SM_CPC_SIZE 1 +#define SM_DIVEN_OFFSET 4 +#define SM_DIVEN_SIZE 1 +#define SM_DIV_OFFSET 8 +#define SM_DIV_SIZE 8 + +/* Bitfields in RTC_CTRL */ +#define SM_PCLR_OFFSET 1 +#define SM_PCLR_SIZE 1 +#define SM_TOPEN_OFFSET 2 +#define SM_TOPEN_SIZE 1 +#define SM_CLKEN_OFFSET 3 +#define SM_CLKEN_SIZE 1 +#define SM_PSEL_OFFSET 8 +#define SM_PSEL_SIZE 16 + +/* Bitfields in RTC_VAL */ +#define SM_RTC_VAL_VAL_OFFSET 0 +#define SM_RTC_VAL_VAL_SIZE 31 + +/* Bitfields in RTC_TOP */ +#define SM_RTC_TOP_VAL_OFFSET 0 +#define SM_RTC_TOP_VAL_SIZE 32 + +/* Bitfields in RTC_IER */ + +/* Bitfields in RTC_IDR */ + +/* Bitfields in RTC_IMR */ + +/* Bitfields in RTC_ISR */ + +/* Bitfields in RTC_ICR */ +#define SM_TOPI_OFFSET 0 +#define SM_TOPI_SIZE 1 + +/* Bitfields in WDT_CTRL */ +#define SM_KEY_OFFSET 24 +#define SM_KEY_SIZE 8 + +/* Bitfields in WDT_CLR */ + +/* Bitfields in WDT_EXT */ + +/* Bitfields in RC_RCAUSE */ +#define SM_POR_OFFSET 0 +#define SM_POR_SIZE 1 +#define SM_BOD_OFFSET 1 +#define SM_BOD_SIZE 1 +#define SM_EXT_OFFSET 2 +#define SM_EXT_SIZE 1 +#define SM_WDT_OFFSET 3 +#define SM_WDT_SIZE 1 +#define SM_NTAE_OFFSET 4 +#define SM_NTAE_SIZE 1 +#define SM_SERP_OFFSET 5 +#define SM_SERP_SIZE 1 + +/* Bitfields in EIM_IER */ + +/* Bitfields in EIM_IDR */ + +/* Bitfields in EIM_IMR */ + +/* Bitfields in EIM_ISR */ + +/* Bitfields in EIM_ICR */ + +/* Bitfields in EIM_MODE */ + +/* Bitfields in EIM_EDGE */ +#define SM_INT0_OFFSET 0 +#define SM_INT0_SIZE 1 +#define SM_INT1_OFFSET 1 +#define SM_INT1_SIZE 1 +#define SM_INT2_OFFSET 2 +#define SM_INT2_SIZE 1 +#define SM_INT3_OFFSET 3 +#define SM_INT3_SIZE 1 + +/* Bitfields in EIM_LEVEL */ + +/* Bitfields in EIM_TEST */ +#define SM_TESTEN_OFFSET 31 +#define SM_TESTEN_SIZE 1 + +/* Bitfields in EIM_NMIC */ +#define SM_EN_OFFSET 0 +#define SM_EN_SIZE 1 + +/* Bit manipulation macros */ +#define SM_BIT(name) (1 << SM_##name##_OFFSET) +#define SM_BF(name,value) (((value) & ((1 << SM_##name##_SIZE) - 1)) << SM_##name##_OFFSET) +#define SM_BFEXT(name,value) (((value) >> SM_##name##_OFFSET) & ((1 << SM_##name##_SIZE) - 1)) +#define SM_BFINS(name,value,old) (((old) & ~(((1 << SM_##name##_SIZE) - 1) << SM_##name##_OFFSET)) | SM_BF(name,value)) + +/* Register access macros */ +#define sm_readl(port,reg) readl((port)->regs + SM_##reg) +#define sm_writel(port,reg,value) writel((value), (port)->regs + SM_##reg) + +#endif /* __ASM_AVR32_SM_H__ */
diff --git a/arch/avr32/mm/Makefile b/arch/avr32/mm/Makefile new file mode 100644 index 0000000..0066491 --- /dev/null +++ b/arch/avr32/mm/Makefile
@@ -0,0 +1,6 @@ +# +# Makefile for the Linux/AVR32 kernel. +# + +obj-y += init.o clear_page.o copy_page.o dma-coherent.o +obj-y += ioremap.o cache.o fault.o tlb.o
diff --git a/arch/avr32/mm/cache.c b/arch/avr32/mm/cache.c new file mode 100644 index 0000000..450515b --- /dev/null +++ b/arch/avr32/mm/cache.c
@@ -0,0 +1,150 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/highmem.h> +#include <linux/unistd.h> + +#include <asm/cacheflush.h> +#include <asm/cachectl.h> +#include <asm/processor.h> +#include <asm/uaccess.h> + +/* + * If you attempt to flush anything more than this, you need superuser + * privileges. The value is completely arbitrary. + */ +#define CACHEFLUSH_MAX_LEN 1024 + +void invalidate_dcache_region(void *start, size_t size) +{ + unsigned long v, begin, end, linesz; + + linesz = boot_cpu_data.dcache.linesz; + + //printk("invalidate dcache: %p + %u\n", start, size); + + /* You asked for it, you got it */ + begin = (unsigned long)start & ~(linesz - 1); + end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1); + + for (v = begin; v < end; v += linesz) + invalidate_dcache_line((void *)v); +} + +void clean_dcache_region(void *start, size_t size) +{ + unsigned long v, begin, end, linesz; + + linesz = boot_cpu_data.dcache.linesz; + begin = (unsigned long)start & ~(linesz - 1); + end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1); + + for (v = begin; v < end; v += linesz) + clean_dcache_line((void *)v); + flush_write_buffer(); +} + +void flush_dcache_region(void *start, size_t size) +{ + unsigned long v, begin, end, linesz; + + linesz = boot_cpu_data.dcache.linesz; + begin = (unsigned long)start & ~(linesz - 1); + end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1); + + for (v = begin; v < end; v += linesz) + flush_dcache_line((void *)v); + flush_write_buffer(); +} + +void invalidate_icache_region(void *start, size_t size) +{ + unsigned long v, begin, end, linesz; + + linesz = boot_cpu_data.icache.linesz; + begin = (unsigned long)start & ~(linesz - 1); + end = ((unsigned long)start + size + linesz - 1) & ~(linesz - 1); + + for (v = begin; v < end; v += linesz) + invalidate_icache_line((void *)v); +} + +static inline void __flush_icache_range(unsigned long start, unsigned long end) +{ + unsigned long v, linesz; + + linesz = boot_cpu_data.dcache.linesz; + for (v = start; v < end; v += linesz) { + clean_dcache_line((void *)v); + invalidate_icache_line((void *)v); + } + + flush_write_buffer(); +} + +/* + * This one is called after a module has been loaded. + */ +void flush_icache_range(unsigned long start, unsigned long end) +{ + unsigned long linesz; + + linesz = boot_cpu_data.dcache.linesz; + __flush_icache_range(start & ~(linesz - 1), + (end + linesz - 1) & ~(linesz - 1)); +} + +/* + * This one is called from do_no_page(), do_swap_page() and install_page(). + */ +void flush_icache_page(struct vm_area_struct *vma, struct page *page) +{ + if (vma->vm_flags & VM_EXEC) { + void *v = kmap(page); + __flush_icache_range((unsigned long)v, (unsigned long)v + PAGE_SIZE); + kunmap(v); + } +} + +/* + * This one is used by copy_to_user_page() + */ +void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, + unsigned long addr, int len) +{ + if (vma->vm_flags & VM_EXEC) + flush_icache_range(addr, addr + len); +} + +asmlinkage int sys_cacheflush(int operation, void __user *addr, size_t len) +{ + int ret; + + if (len > CACHEFLUSH_MAX_LEN) { + ret = -EPERM; + if (!capable(CAP_SYS_ADMIN)) + goto out; + } + + ret = -EFAULT; + if (!access_ok(VERIFY_WRITE, addr, len)) + goto out; + + switch (operation) { + case CACHE_IFLUSH: + flush_icache_range((unsigned long)addr, + (unsigned long)addr + len); + ret = 0; + break; + default: + ret = -EINVAL; + } + +out: + return ret; +}
diff --git a/arch/avr32/mm/clear_page.S b/arch/avr32/mm/clear_page.S new file mode 100644 index 0000000..5d70dca --- /dev/null +++ b/arch/avr32/mm/clear_page.S
@@ -0,0 +1,25 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/linkage.h> +#include <asm/page.h> + +/* + * clear_page + * r12: P1 address (to) + */ + .text + .global clear_page +clear_page: + sub r9, r12, -PAGE_SIZE + mov r10, 0 + mov r11, 0 +0: st.d r12++, r10 + cp r12, r9 + brne 0b + mov pc, lr
diff --git a/arch/avr32/mm/copy_page.S b/arch/avr32/mm/copy_page.S new file mode 100644 index 0000000..c2b3752 --- /dev/null +++ b/arch/avr32/mm/copy_page.S
@@ -0,0 +1,28 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/linkage.h> +#include <asm/page.h> + +/* + * copy_page + * + * r12 to (P1 address) + * r11 from (P1 address) + * r8-r10 scratch + */ + .text + .global copy_page +copy_page: + sub r10, r11, -(1 << PAGE_SHIFT) + /* pref r11[0] */ +1: /* pref r11[8] */ + ld.d r8, r11++ + st.d r12++, r8 + cp r11, r10 + brlo 1b + mov pc, lr
diff --git a/arch/avr32/mm/dma-coherent.c b/arch/avr32/mm/dma-coherent.c new file mode 100644 index 0000000..44ab8a7 --- /dev/null +++ b/arch/avr32/mm/dma-coherent.c
@@ -0,0 +1,139 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/dma-mapping.h> + +#include <asm/addrspace.h> +#include <asm/cacheflush.h> + +void dma_cache_sync(void *vaddr, size_t size, int direction) +{ + /* + * No need to sync an uncached area + */ + if (PXSEG(vaddr) == P2SEG) + return; + + switch (direction) { + case DMA_FROM_DEVICE: /* invalidate only */ + dma_cache_inv(vaddr, size); + break; + case DMA_TO_DEVICE: /* writeback only */ + dma_cache_wback(vaddr, size); + break; + case DMA_BIDIRECTIONAL: /* writeback and invalidate */ + dma_cache_wback_inv(vaddr, size); + break; + default: + BUG(); + } +} +EXPORT_SYMBOL(dma_cache_sync); + +static struct page *__dma_alloc(struct device *dev, size_t size, + dma_addr_t *handle, gfp_t gfp) +{ + struct page *page, *free, *end; + int order; + + size = PAGE_ALIGN(size); + order = get_order(size); + + page = alloc_pages(gfp, order); + if (!page) + return NULL; + split_page(page, order); + + /* + * When accessing physical memory with valid cache data, we + * get a cache hit even if the virtual memory region is marked + * as uncached. + * + * Since the memory is newly allocated, there is no point in + * doing a writeback. If the previous owner cares, he should + * have flushed the cache before releasing the memory. + */ + invalidate_dcache_region(phys_to_virt(page_to_phys(page)), size); + + *handle = page_to_bus(page); + free = page + (size >> PAGE_SHIFT); + end = page + (1 << order); + + /* + * Free any unused pages + */ + while (free < end) { + __free_page(free); + free++; + } + + return page; +} + +static void __dma_free(struct device *dev, size_t size, + struct page *page, dma_addr_t handle) +{ + struct page *end = page + (PAGE_ALIGN(size) >> PAGE_SHIFT); + + while (page < end) + __free_page(page++); +} + +void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *handle, gfp_t gfp) +{ + struct page *page; + void *ret = NULL; + + page = __dma_alloc(dev, size, handle, gfp); + if (page) + ret = phys_to_uncached(page_to_phys(page)); + + return ret; +} +EXPORT_SYMBOL(dma_alloc_coherent); + +void dma_free_coherent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t handle) +{ + void *addr = phys_to_cached(uncached_to_phys(cpu_addr)); + struct page *page; + + pr_debug("dma_free_coherent addr %p (phys %08lx) size %u\n", + cpu_addr, (unsigned long)handle, (unsigned)size); + BUG_ON(!virt_addr_valid(addr)); + page = virt_to_page(addr); + __dma_free(dev, size, page, handle); +} +EXPORT_SYMBOL(dma_free_coherent); + +#if 0 +void *dma_alloc_writecombine(struct device *dev, size_t size, + dma_addr_t *handle, gfp_t gfp) +{ + struct page *page; + + page = __dma_alloc(dev, size, handle, gfp); + + /* Now, map the page into P3 with write-combining turned on */ + return __ioremap(page_to_phys(page), size, _PAGE_BUFFER); +} +EXPORT_SYMBOL(dma_alloc_writecombine); + +void dma_free_writecombine(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t handle) +{ + struct page *page; + + iounmap(cpu_addr); + + page = bus_to_page(handle); + __dma_free(dev, size, page, handle); +} +EXPORT_SYMBOL(dma_free_writecombine); +#endif
diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c new file mode 100644 index 0000000..6785572 --- /dev/null +++ b/arch/avr32/mm/fault.c
@@ -0,0 +1,315 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * Based on linux/arch/sh/mm/fault.c: + * Copyright (C) 1999 Niibe Yutaka + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/pagemap.h> + +#include <asm/kdebug.h> +#include <asm/mmu_context.h> +#include <asm/sysreg.h> +#include <asm/uaccess.h> +#include <asm/tlb.h> + +#ifdef DEBUG +static void dump_code(unsigned long pc) +{ + char *p = (char *)pc; + char val; + int i; + + + printk(KERN_DEBUG "Code:"); + for (i = 0; i < 16; i++) { + if (__get_user(val, p + i)) + break; + printk(" %02x", val); + } + printk("\n"); +} +#endif + +#ifdef CONFIG_KPROBES +ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); + +/* Hook to register for page fault notifications */ +int register_page_fault_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_register(¬ify_page_fault_chain, nb); +} + +int unregister_page_fault_notifier(struct notifier_block *nb) +{ + return atomic_notifier_chain_unregister(¬ify_page_fault_chain, nb); +} + +static inline int notify_page_fault(enum die_val val, struct pt_regs *regs, + int trap, int sig) +{ + struct die_args args = { + .regs = regs, + .trapnr = trap, + }; + return atomic_notifier_call_chain(¬ify_page_fault_chain, val, &args); +} +#else +static inline int notify_page_fault(enum die_val val, struct pt_regs *regs, + int trap, int sig) +{ + return NOTIFY_DONE; +} +#endif + +/* + * This routine handles page faults. It determines the address and the + * problem, and then passes it off to one of the appropriate routines. + * + * ecr is the Exception Cause Register. Possible values are: + * 5: Page not found (instruction access) + * 6: Protection fault (instruction access) + * 12: Page not found (read access) + * 13: Page not found (write access) + * 14: Protection fault (read access) + * 15: Protection fault (write access) + */ +asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs) +{ + struct task_struct *tsk; + struct mm_struct *mm; + struct vm_area_struct *vma; + const struct exception_table_entry *fixup; + unsigned long address; + unsigned long page; + int writeaccess = 0; + + if (notify_page_fault(DIE_PAGE_FAULT, regs, + ecr, SIGSEGV) == NOTIFY_STOP) + return; + + address = sysreg_read(TLBEAR); + + tsk = current; + mm = tsk->mm; + + /* + * If we're in an interrupt or have no user context, we must + * not take the fault... + */ + if (in_atomic() || !mm || regs->sr & SYSREG_BIT(GM)) + goto no_context; + + local_irq_enable(); + + down_read(&mm->mmap_sem); + + vma = find_vma(mm, address); + if (!vma) + goto bad_area; + if (vma->vm_start <= address) + goto good_area; + if (!(vma->vm_flags & VM_GROWSDOWN)) + goto bad_area; + if (expand_stack(vma, address)) + goto bad_area; + + /* + * Ok, we have a good vm_area for this memory access, so we + * can handle it... + */ +good_area: + //pr_debug("good area: vm_flags = 0x%lx\n", vma->vm_flags); + switch (ecr) { + case ECR_PROTECTION_X: + case ECR_TLB_MISS_X: + if (!(vma->vm_flags & VM_EXEC)) + goto bad_area; + break; + case ECR_PROTECTION_R: + case ECR_TLB_MISS_R: + if (!(vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC))) + goto bad_area; + break; + case ECR_PROTECTION_W: + case ECR_TLB_MISS_W: + if (!(vma->vm_flags & VM_WRITE)) + goto bad_area; + writeaccess = 1; + break; + default: + panic("Unhandled case %lu in do_page_fault!", ecr); + } + + /* + * If for any reason at all we couldn't handle the fault, make + * sure we exit gracefully rather than endlessly redo the + * fault. + */ +survive: + switch (handle_mm_fault(mm, vma, address, writeaccess)) { + case VM_FAULT_MINOR: + tsk->min_flt++; + break; + case VM_FAULT_MAJOR: + tsk->maj_flt++; + break; + case VM_FAULT_SIGBUS: + goto do_sigbus; + case VM_FAULT_OOM: + goto out_of_memory; + default: + BUG(); + } + + up_read(&mm->mmap_sem); + return; + + /* + * Something tried to access memory that isn't in our memory + * map. Fix it, but check if it's kernel or user first... + */ +bad_area: + pr_debug("Bad area [%s:%u]: addr %08lx, ecr %lu\n", + tsk->comm, tsk->pid, address, ecr); + + up_read(&mm->mmap_sem); + + if (user_mode(regs)) { + /* Hmm...we have to pass address and ecr somehow... */ + /* tsk->thread.address = address; + tsk->thread.error_code = ecr; */ +#ifdef DEBUG + show_regs(regs); + dump_code(regs->pc); + + page = sysreg_read(PTBR); + printk("ptbr = %08lx", page); + if (page) { + page = ((unsigned long *)page)[address >> 22]; + printk(" pgd = %08lx", page); + if (page & _PAGE_PRESENT) { + page &= PAGE_MASK; + address &= 0x003ff000; + page = ((unsigned long *)__va(page))[address >> PAGE_SHIFT]; + printk(" pte = %08lx\n", page); + } + } +#endif + pr_debug("Sending SIGSEGV to PID %d...\n", + tsk->pid); + force_sig(SIGSEGV, tsk); + return; + } + +no_context: + pr_debug("No context\n"); + + /* Are we prepared to handle this kernel fault? */ + fixup = search_exception_tables(regs->pc); + if (fixup) { + regs->pc = fixup->fixup; + pr_debug("Found fixup at %08lx\n", fixup->fixup); + return; + } + + /* + * Oops. The kernel tried to access some bad page. We'll have + * to terminate things with extreme prejudice. + */ + if (address < PAGE_SIZE) + printk(KERN_ALERT + "Unable to handle kernel NULL pointer dereference"); + else + printk(KERN_ALERT + "Unable to handle kernel paging request"); + printk(" at virtual address %08lx\n", address); + printk(KERN_ALERT "pc = %08lx\n", regs->pc); + + page = sysreg_read(PTBR); + printk(KERN_ALERT "ptbr = %08lx", page); + if (page) { + page = ((unsigned long *)page)[address >> 22]; + printk(" pgd = %08lx", page); + if (page & _PAGE_PRESENT) { + page &= PAGE_MASK; + address &= 0x003ff000; + page = ((unsigned long *)__va(page))[address >> PAGE_SHIFT]; + printk(" pte = %08lx\n", page); + } + } + die("\nOops", regs, ecr); + do_exit(SIGKILL); + + /* + * We ran out of memory, or some other thing happened to us + * that made us unable to handle the page fault gracefully. + */ +out_of_memory: + printk("Out of memory\n"); + up_read(&mm->mmap_sem); + if (current->pid == 1) { + yield(); + down_read(&mm->mmap_sem); + goto survive; + } + printk("VM: Killing process %s\n", tsk->comm); + if (user_mode(regs)) + do_exit(SIGKILL); + goto no_context; + +do_sigbus: + up_read(&mm->mmap_sem); + + /* + * Send a sigbus, regardless of whether we were in kernel or + * user mode. + */ + /* address, error_code, trap_no, ... */ +#ifdef DEBUG + show_regs(regs); + dump_code(regs->pc); +#endif + pr_debug("Sending SIGBUS to PID %d...\n", tsk->pid); + force_sig(SIGBUS, tsk); + + /* Kernel mode? Handle exceptions or die */ + if (!user_mode(regs)) + goto no_context; +} + +asmlinkage void do_bus_error(unsigned long addr, int write_access, + struct pt_regs *regs) +{ + printk(KERN_ALERT + "Bus error at physical address 0x%08lx (%s access)\n", + addr, write_access ? "write" : "read"); + printk(KERN_INFO "DTLB dump:\n"); + dump_dtlb(); + die("Bus Error", regs, write_access); + do_exit(SIGKILL); +} + +/* + * This functionality is currently not possible to implement because + * we're using segmentation to ensure a fixed mapping of the kernel + * virtual address space. + * + * It would be possible to implement this, but it would require us to + * disable segmentation at startup and load the kernel mappings into + * the TLB like any other pages. There will be lots of trickery to + * avoid recursive invocation of the TLB miss handler, though... + */ +#ifdef CONFIG_DEBUG_PAGEALLOC +void kernel_map_pages(struct page *page, int numpages, int enable) +{ + +} +EXPORT_SYMBOL(kernel_map_pages); +#endif
diff --git a/arch/avr32/mm/init.c b/arch/avr32/mm/init.c new file mode 100644 index 0000000..3e6c410 --- /dev/null +++ b/arch/avr32/mm/init.c
@@ -0,0 +1,480 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/swap.h> +#include <linux/init.h> +#include <linux/initrd.h> +#include <linux/mmzone.h> +#include <linux/bootmem.h> +#include <linux/pagemap.h> +#include <linux/pfn.h> +#include <linux/nodemask.h> + +#include <asm/page.h> +#include <asm/mmu_context.h> +#include <asm/tlb.h> +#include <asm/io.h> +#include <asm/dma.h> +#include <asm/setup.h> +#include <asm/sections.h> + +DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); + +pgd_t swapper_pg_dir[PTRS_PER_PGD]; + +struct page *empty_zero_page; + +/* + * Cache of MMU context last used. + */ +unsigned long mmu_context_cache = NO_CONTEXT; + +#define START_PFN (NODE_DATA(0)->bdata->node_boot_start >> PAGE_SHIFT) +#define MAX_LOW_PFN (NODE_DATA(0)->bdata->node_low_pfn) + +void show_mem(void) +{ + int total = 0, reserved = 0, cached = 0; + int slab = 0, free = 0, shared = 0; + pg_data_t *pgdat; + + printk("Mem-info:\n"); + show_free_areas(); + + for_each_online_pgdat(pgdat) { + struct page *page, *end; + + page = pgdat->node_mem_map; + end = page + pgdat->node_spanned_pages; + + do { + total++; + if (PageReserved(page)) + reserved++; + else if (PageSwapCache(page)) + cached++; + else if (PageSlab(page)) + slab++; + else if (!page_count(page)) + free++; + else + shared += page_count(page) - 1; + page++; + } while (page < end); + } + + printk ("%d pages of RAM\n", total); + printk ("%d free pages\n", free); + printk ("%d reserved pages\n", reserved); + printk ("%d slab pages\n", slab); + printk ("%d pages shared\n", shared); + printk ("%d pages swap cached\n", cached); +} + +static void __init print_memory_map(const char *what, + struct tag_mem_range *mem) +{ + printk ("%s:\n", what); + for (; mem; mem = mem->next) { + printk (" %08lx - %08lx\n", + (unsigned long)mem->addr, + (unsigned long)(mem->addr + mem->size)); + } +} + +#define MAX_LOWMEM HIGHMEM_START +#define MAX_LOWMEM_PFN PFN_DOWN(MAX_LOWMEM) + +/* + * Sort a list of memory regions in-place by ascending address. + * + * We're using bubble sort because we only have singly linked lists + * with few elements. + */ +static void __init sort_mem_list(struct tag_mem_range **pmem) +{ + int done; + struct tag_mem_range **a, **b; + + if (!*pmem) + return; + + do { + done = 1; + a = pmem, b = &(*pmem)->next; + while (*b) { + if ((*a)->addr > (*b)->addr) { + struct tag_mem_range *tmp; + tmp = (*b)->next; + (*b)->next = *a; + *a = *b; + *b = tmp; + done = 0; + } + a = &(*a)->next; + b = &(*a)->next; + } + } while (!done); +} + +/* + * Find a free memory region large enough for storing the + * bootmem bitmap. + */ +static unsigned long __init +find_bootmap_pfn(const struct tag_mem_range *mem) +{ + unsigned long bootmap_pages, bootmap_len; + unsigned long node_pages = PFN_UP(mem->size); + unsigned long bootmap_addr = mem->addr; + struct tag_mem_range *reserved = mem_reserved; + struct tag_mem_range *ramdisk = mem_ramdisk; + unsigned long kern_start = virt_to_phys(_stext); + unsigned long kern_end = virt_to_phys(_end); + + bootmap_pages = bootmem_bootmap_pages(node_pages); + bootmap_len = bootmap_pages << PAGE_SHIFT; + + /* + * Find a large enough region without reserved pages for + * storing the bootmem bitmap. We can take advantage of the + * fact that all lists have been sorted. + * + * We have to check explicitly reserved regions as well as the + * kernel image and any RAMDISK images... + * + * Oh, and we have to make sure we don't overwrite the taglist + * since we're going to use it until the bootmem allocator is + * fully up and running. + */ + while (1) { + if ((bootmap_addr < kern_end) && + ((bootmap_addr + bootmap_len) > kern_start)) + bootmap_addr = kern_end; + + while (reserved && + (bootmap_addr >= (reserved->addr + reserved->size))) + reserved = reserved->next; + + if (reserved && + ((bootmap_addr + bootmap_len) >= reserved->addr)) { + bootmap_addr = reserved->addr + reserved->size; + continue; + } + + while (ramdisk && + (bootmap_addr >= (ramdisk->addr + ramdisk->size))) + ramdisk = ramdisk->next; + + if (!ramdisk || + ((bootmap_addr + bootmap_len) < ramdisk->addr)) + break; + + bootmap_addr = ramdisk->addr + ramdisk->size; + } + + if ((PFN_UP(bootmap_addr) + bootmap_len) >= (mem->addr + mem->size)) + return ~0UL; + + return PFN_UP(bootmap_addr); +} + +void __init setup_bootmem(void) +{ + unsigned bootmap_size; + unsigned long first_pfn, bootmap_pfn, pages; + unsigned long max_pfn, max_low_pfn; + unsigned long kern_start = virt_to_phys(_stext); + unsigned long kern_end = virt_to_phys(_end); + unsigned node = 0; + struct tag_mem_range *bank, *res; + + sort_mem_list(&mem_phys); + sort_mem_list(&mem_reserved); + + print_memory_map("Physical memory", mem_phys); + print_memory_map("Reserved memory", mem_reserved); + + nodes_clear(node_online_map); + + if (mem_ramdisk) { +#ifdef CONFIG_BLK_DEV_INITRD + initrd_start = __va(mem_ramdisk->addr); + initrd_end = initrd_start + mem_ramdisk->size; + + print_memory_map("RAMDISK images", mem_ramdisk); + if (mem_ramdisk->next) + printk(KERN_WARNING + "Warning: Only the first RAMDISK image " + "will be used\n"); + sort_mem_list(&mem_ramdisk); +#else + printk(KERN_WARNING "RAM disk image present, but " + "no initrd support in kernel!\n"); +#endif + } + + if (mem_phys->next) + printk(KERN_WARNING "Only using first memory bank\n"); + + for (bank = mem_phys; bank; bank = NULL) { + first_pfn = PFN_UP(bank->addr); + max_low_pfn = max_pfn = PFN_DOWN(bank->addr + bank->size); + bootmap_pfn = find_bootmap_pfn(bank); + if (bootmap_pfn > max_pfn) + panic("No space for bootmem bitmap!\n"); + + if (max_low_pfn > MAX_LOWMEM_PFN) { + max_low_pfn = MAX_LOWMEM_PFN; +#ifndef CONFIG_HIGHMEM + /* + * Lowmem is memory that can be addressed + * directly through P1/P2 + */ + printk(KERN_WARNING + "Node %u: Only %ld MiB of memory will be used.\n", + node, MAX_LOWMEM >> 20); + printk(KERN_WARNING "Use a HIGHMEM enabled kernel.\n"); +#else +#error HIGHMEM is not supported by AVR32 yet +#endif + } + + /* Initialize the boot-time allocator with low memory only. */ + bootmap_size = init_bootmem_node(NODE_DATA(node), bootmap_pfn, + first_pfn, max_low_pfn); + + printk("Node %u: bdata = %p, bdata->node_bootmem_map = %p\n", + node, NODE_DATA(node)->bdata, + NODE_DATA(node)->bdata->node_bootmem_map); + + /* + * Register fully available RAM pages with the bootmem + * allocator. + */ + pages = max_low_pfn - first_pfn; + free_bootmem_node (NODE_DATA(node), PFN_PHYS(first_pfn), + PFN_PHYS(pages)); + + /* + * Reserve space for the kernel image (if present in + * this node)... + */ + if ((kern_start >= PFN_PHYS(first_pfn)) && + (kern_start < PFN_PHYS(max_pfn))) { + printk("Node %u: Kernel image %08lx - %08lx\n", + node, kern_start, kern_end); + reserve_bootmem_node(NODE_DATA(node), kern_start, + kern_end - kern_start); + } + + /* ...the bootmem bitmap... */ + reserve_bootmem_node(NODE_DATA(node), + PFN_PHYS(bootmap_pfn), + bootmap_size); + + /* ...any RAMDISK images... */ + for (res = mem_ramdisk; res; res = res->next) { + if (res->addr > PFN_PHYS(max_pfn)) + break; + + if (res->addr >= PFN_PHYS(first_pfn)) { + printk("Node %u: RAMDISK %08lx - %08lx\n", + node, + (unsigned long)res->addr, + (unsigned long)(res->addr + res->size)); + reserve_bootmem_node(NODE_DATA(node), + res->addr, res->size); + } + } + + /* ...and any other reserved regions. */ + for (res = mem_reserved; res; res = res->next) { + if (res->addr > PFN_PHYS(max_pfn)) + break; + + if (res->addr >= PFN_PHYS(first_pfn)) { + printk("Node %u: Reserved %08lx - %08lx\n", + node, + (unsigned long)res->addr, + (unsigned long)(res->addr + res->size)); + reserve_bootmem_node(NODE_DATA(node), + res->addr, res->size); + } + } + + node_set_online(node); + } +} + +/* + * paging_init() sets up the page tables + * + * This routine also unmaps the page at virtual kernel address 0, so + * that we can trap those pesky NULL-reference errors in the kernel. + */ +void __init paging_init(void) +{ + extern unsigned long _evba; + void *zero_page; + int nid; + + /* + * Make sure we can handle exceptions before enabling + * paging. Not that we should ever _get_ any exceptions this + * early, but you never know... + */ + printk("Exception vectors start at %p\n", &_evba); + sysreg_write(EVBA, (unsigned long)&_evba); + + /* + * Since we are ready to handle exceptions now, we should let + * the CPU generate them... + */ + __asm__ __volatile__ ("csrf %0" : : "i"(SR_EM_BIT)); + + /* + * Allocate the zero page. The allocator will panic if it + * can't satisfy the request, so no need to check. + */ + zero_page = alloc_bootmem_low_pages_node(NODE_DATA(0), + PAGE_SIZE); + + { + pgd_t *pg_dir; + int i; + + pg_dir = swapper_pg_dir; + sysreg_write(PTBR, (unsigned long)pg_dir); + + for (i = 0; i < PTRS_PER_PGD; i++) + pgd_val(pg_dir[i]) = 0; + + enable_mmu(); + printk ("CPU: Paging enabled\n"); + } + + for_each_online_node(nid) { + pg_data_t *pgdat = NODE_DATA(nid); + unsigned long zones_size[MAX_NR_ZONES]; + unsigned long low, start_pfn; + + start_pfn = pgdat->bdata->node_boot_start; + start_pfn >>= PAGE_SHIFT; + low = pgdat->bdata->node_low_pfn; + + memset(zones_size, 0, sizeof(zones_size)); + zones_size[ZONE_NORMAL] = low - start_pfn; + + printk("Node %u: start_pfn = 0x%lx, low = 0x%lx\n", + nid, start_pfn, low); + + free_area_init_node(nid, pgdat, zones_size, start_pfn, NULL); + + printk("Node %u: mem_map starts at %p\n", + pgdat->node_id, pgdat->node_mem_map); + } + + mem_map = NODE_DATA(0)->node_mem_map; + + memset(zero_page, 0, PAGE_SIZE); + empty_zero_page = virt_to_page(zero_page); + flush_dcache_page(empty_zero_page); +} + +void __init mem_init(void) +{ + int codesize, reservedpages, datasize, initsize; + int nid, i; + + reservedpages = 0; + high_memory = NULL; + + /* this will put all low memory onto the freelists */ + for_each_online_node(nid) { + pg_data_t *pgdat = NODE_DATA(nid); + unsigned long node_pages = 0; + void *node_high_memory; + + num_physpages += pgdat->node_present_pages; + + if (pgdat->node_spanned_pages != 0) + node_pages = free_all_bootmem_node(pgdat); + + totalram_pages += node_pages; + + for (i = 0; i < node_pages; i++) + if (PageReserved(pgdat->node_mem_map + i)) + reservedpages++; + + node_high_memory = (void *)((pgdat->node_start_pfn + + pgdat->node_spanned_pages) + << PAGE_SHIFT); + if (node_high_memory > high_memory) + high_memory = node_high_memory; + } + + max_mapnr = MAP_NR(high_memory); + + codesize = (unsigned long)_etext - (unsigned long)_text; + datasize = (unsigned long)_edata - (unsigned long)_data; + initsize = (unsigned long)__init_end - (unsigned long)__init_begin; + + printk ("Memory: %luk/%luk available (%dk kernel code, " + "%dk reserved, %dk data, %dk init)\n", + (unsigned long)nr_free_pages() << (PAGE_SHIFT - 10), + totalram_pages << (PAGE_SHIFT - 10), + codesize >> 10, + reservedpages << (PAGE_SHIFT - 10), + datasize >> 10, + initsize >> 10); +} + +static inline void free_area(unsigned long addr, unsigned long end, char *s) +{ + unsigned int size = (end - addr) >> 10; + + for (; addr < end; addr += PAGE_SIZE) { + struct page *page = virt_to_page(addr); + ClearPageReserved(page); + init_page_count(page); + free_page(addr); + totalram_pages++; + } + + if (size && s) + printk(KERN_INFO "Freeing %s memory: %dK (%lx - %lx)\n", + s, size, end - (size << 10), end); +} + +void free_initmem(void) +{ + free_area((unsigned long)__init_begin, (unsigned long)__init_end, + "init"); +} + +#ifdef CONFIG_BLK_DEV_INITRD + +static int keep_initrd; + +void free_initrd_mem(unsigned long start, unsigned long end) +{ + if (!keep_initrd) + free_area(start, end, "initrd"); +} + +static int __init keepinitrd_setup(char *__unused) +{ + keep_initrd = 1; + return 1; +} + +__setup("keepinitrd", keepinitrd_setup); +#endif
diff --git a/arch/avr32/mm/ioremap.c b/arch/avr32/mm/ioremap.c new file mode 100644 index 0000000..5360218 --- /dev/null +++ b/arch/avr32/mm/ioremap.c
@@ -0,0 +1,197 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/vmalloc.h> +#include <linux/module.h> + +#include <asm/io.h> +#include <asm/pgtable.h> +#include <asm/cacheflush.h> +#include <asm/tlbflush.h> +#include <asm/addrspace.h> + +static inline int remap_area_pte(pte_t *pte, unsigned long address, + unsigned long end, unsigned long phys_addr, + pgprot_t prot) +{ + unsigned long pfn; + + pfn = phys_addr >> PAGE_SHIFT; + do { + WARN_ON(!pte_none(*pte)); + + set_pte(pte, pfn_pte(pfn, prot)); + address += PAGE_SIZE; + pfn++; + pte++; + } while (address && (address < end)); + + return 0; +} + +static inline int remap_area_pmd(pmd_t *pmd, unsigned long address, + unsigned long end, unsigned long phys_addr, + pgprot_t prot) +{ + unsigned long next; + + phys_addr -= address; + + do { + pte_t *pte = pte_alloc_kernel(pmd, address); + if (!pte) + return -ENOMEM; + + next = (address + PMD_SIZE) & PMD_MASK; + if (remap_area_pte(pte, address, next, + address + phys_addr, prot)) + return -ENOMEM; + + address = next; + pmd++; + } while (address && (address < end)); + return 0; +} + +static int remap_area_pud(pud_t *pud, unsigned long address, + unsigned long end, unsigned long phys_addr, + pgprot_t prot) +{ + unsigned long next; + + phys_addr -= address; + + do { + pmd_t *pmd = pmd_alloc(&init_mm, pud, address); + if (!pmd) + return -ENOMEM; + next = (address + PUD_SIZE) & PUD_MASK; + if (remap_area_pmd(pmd, address, next, + phys_addr + address, prot)) + return -ENOMEM; + + address = next; + pud++; + } while (address && address < end); + + return 0; +} + +static int remap_area_pages(unsigned long address, unsigned long phys_addr, + size_t size, pgprot_t prot) +{ + unsigned long end = address + size; + unsigned long next; + pgd_t *pgd; + int err = 0; + + phys_addr -= address; + + pgd = pgd_offset_k(address); + flush_cache_all(); + BUG_ON(address >= end); + + spin_lock(&init_mm.page_table_lock); + do { + pud_t *pud = pud_alloc(&init_mm, pgd, address); + + err = -ENOMEM; + if (!pud) + break; + + next = (address + PGDIR_SIZE) & PGDIR_MASK; + if (next < address || next > end) + next = end; + err = remap_area_pud(pud, address, next, + phys_addr + address, prot); + if (err) + break; + + address = next; + pgd++; + } while (address && (address < end)); + + spin_unlock(&init_mm.page_table_lock); + flush_tlb_all(); + return err; +} + +/* + * Re-map an arbitrary physical address space into the kernel virtual + * address space. Needed when the kernel wants to access physical + * memory directly. + */ +void __iomem *__ioremap(unsigned long phys_addr, size_t size, + unsigned long flags) +{ + void *addr; + struct vm_struct *area; + unsigned long offset, last_addr; + pgprot_t prot; + + /* + * Check if we can simply use the P4 segment. This area is + * uncacheable, so if caching/buffering is requested, we can't + * use it. + */ + if ((phys_addr >= P4SEG) && (flags == 0)) + return (void __iomem *)phys_addr; + + /* Don't allow wraparound or zero size */ + last_addr = phys_addr + size - 1; + if (!size || last_addr < phys_addr) + return NULL; + + /* + * XXX: When mapping regular RAM, we'd better make damn sure + * it's never used for anything else. But this is really the + * caller's responsibility... + */ + if (PHYSADDR(P2SEGADDR(phys_addr)) == phys_addr) + return (void __iomem *)P2SEGADDR(phys_addr); + + /* Mappings have to be page-aligned */ + offset = phys_addr & ~PAGE_MASK; + phys_addr &= PAGE_MASK; + size = PAGE_ALIGN(last_addr + 1) - phys_addr; + + prot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY + | _PAGE_ACCESSED | _PAGE_TYPE_SMALL | flags); + + /* + * Ok, go for it.. + */ + area = get_vm_area(size, VM_IOREMAP); + if (!area) + return NULL; + area->phys_addr = phys_addr; + addr = area->addr; + if (remap_area_pages((unsigned long)addr, phys_addr, size, prot)) { + vunmap(addr); + return NULL; + } + + return (void __iomem *)(offset + (char *)addr); +} +EXPORT_SYMBOL(__ioremap); + +void __iounmap(void __iomem *addr) +{ + struct vm_struct *p; + + if ((unsigned long)addr >= P4SEG) + return; + + p = remove_vm_area((void *)(PAGE_MASK & (unsigned long __force)addr)); + if (unlikely(!p)) { + printk (KERN_ERR "iounmap: bad address %p\n", addr); + return; + } + + kfree (p); +} +EXPORT_SYMBOL(__iounmap);
diff --git a/arch/avr32/mm/tlb.c b/arch/avr32/mm/tlb.c new file mode 100644 index 0000000..7b07305 --- /dev/null +++ b/arch/avr32/mm/tlb.c
@@ -0,0 +1,380 @@ +/* + * AVR32 TLB operations + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/mm.h> + +#include <asm/mmu_context.h> + +#define _TLBEHI_I 0x100 + +void show_dtlb_entry(unsigned int index) +{ + unsigned int tlbehi, tlbehi_save, tlbelo, mmucr, mmucr_save; + unsigned long flags; + + local_irq_save(flags); + mmucr_save = sysreg_read(MMUCR); + tlbehi_save = sysreg_read(TLBEHI); + mmucr = mmucr_save & 0x13; + mmucr |= index << 14; + sysreg_write(MMUCR, mmucr); + + asm volatile("tlbr" : : : "memory"); + cpu_sync_pipeline(); + + tlbehi = sysreg_read(TLBEHI); + tlbelo = sysreg_read(TLBELO); + + printk("%2u: %c %c %02x %05x %05x %o %o %c %c %c %c\n", + index, + (tlbehi & 0x200)?'1':'0', + (tlbelo & 0x100)?'1':'0', + (tlbehi & 0xff), + (tlbehi >> 12), (tlbelo >> 12), + (tlbelo >> 4) & 7, (tlbelo >> 2) & 3, + (tlbelo & 0x200)?'1':'0', + (tlbelo & 0x080)?'1':'0', + (tlbelo & 0x001)?'1':'0', + (tlbelo & 0x002)?'1':'0'); + + sysreg_write(MMUCR, mmucr_save); + sysreg_write(TLBEHI, tlbehi_save); + cpu_sync_pipeline(); + local_irq_restore(flags); +} + +void dump_dtlb(void) +{ + unsigned int i; + + printk("ID V G ASID VPN PFN AP SZ C B W D\n"); + for (i = 0; i < 32; i++) + show_dtlb_entry(i); +} + +static unsigned long last_mmucr; + +static inline void set_replacement_pointer(unsigned shift) +{ + unsigned long mmucr, mmucr_save; + + mmucr = mmucr_save = sysreg_read(MMUCR); + + /* Does this mapping already exist? */ + __asm__ __volatile__( + " tlbs\n" + " mfsr %0, %1" + : "=r"(mmucr) + : "i"(SYSREG_MMUCR)); + + if (mmucr & SYSREG_BIT(MMUCR_N)) { + /* Not found -- pick a not-recently-accessed entry */ + unsigned long rp; + unsigned long tlbar = sysreg_read(TLBARLO); + + rp = 32 - fls(tlbar); + if (rp == 32) { + rp = 0; + sysreg_write(TLBARLO, -1L); + } + + mmucr &= 0x13; + mmucr |= (rp << shift); + + sysreg_write(MMUCR, mmucr); + } + + last_mmucr = mmucr; +} + +static void update_dtlb(unsigned long address, pte_t pte, unsigned long asid) +{ + unsigned long vpn; + + vpn = (address & MMU_VPN_MASK) | _TLBEHI_VALID | asid; + sysreg_write(TLBEHI, vpn); + cpu_sync_pipeline(); + + set_replacement_pointer(14); + + sysreg_write(TLBELO, pte_val(pte) & _PAGE_FLAGS_HARDWARE_MASK); + + /* Let's go */ + asm volatile("nop\n\ttlbw" : : : "memory"); + cpu_sync_pipeline(); +} + +void update_mmu_cache(struct vm_area_struct *vma, + unsigned long address, pte_t pte) +{ + unsigned long flags; + + /* ptrace may call this routine */ + if (vma && current->active_mm != vma->vm_mm) + return; + + local_irq_save(flags); + update_dtlb(address, pte, get_asid()); + local_irq_restore(flags); +} + +void __flush_tlb_page(unsigned long asid, unsigned long page) +{ + unsigned long mmucr, tlbehi; + + page |= asid; + sysreg_write(TLBEHI, page); + cpu_sync_pipeline(); + asm volatile("tlbs"); + mmucr = sysreg_read(MMUCR); + + if (!(mmucr & SYSREG_BIT(MMUCR_N))) { + unsigned long tlbarlo; + unsigned long entry; + + /* Clear the "valid" bit */ + tlbehi = sysreg_read(TLBEHI); + tlbehi &= ~_TLBEHI_VALID; + sysreg_write(TLBEHI, tlbehi); + cpu_sync_pipeline(); + + /* mark the entry as "not accessed" */ + entry = (mmucr >> 14) & 0x3f; + tlbarlo = sysreg_read(TLBARLO); + tlbarlo |= (0x80000000 >> entry); + sysreg_write(TLBARLO, tlbarlo); + + /* update the entry with valid bit clear */ + asm volatile("tlbw"); + cpu_sync_pipeline(); + } +} + +void flush_tlb_page(struct vm_area_struct *vma, unsigned long page) +{ + if (vma->vm_mm && vma->vm_mm->context != NO_CONTEXT) { + unsigned long flags, asid; + unsigned long saved_asid = MMU_NO_ASID; + + asid = vma->vm_mm->context & MMU_CONTEXT_ASID_MASK; + page &= PAGE_MASK; + + local_irq_save(flags); + if (vma->vm_mm != current->mm) { + saved_asid = get_asid(); + set_asid(asid); + } + + __flush_tlb_page(asid, page); + + if (saved_asid != MMU_NO_ASID) + set_asid(saved_asid); + local_irq_restore(flags); + } +} + +void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end) +{ + struct mm_struct *mm = vma->vm_mm; + + if (mm->context != NO_CONTEXT) { + unsigned long flags; + int size; + + local_irq_save(flags); + size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT; + if (size > (MMU_DTLB_ENTRIES / 4)) { /* Too many entries to flush */ + mm->context = NO_CONTEXT; + if (mm == current->mm) + activate_context(mm); + } else { + unsigned long asid = mm->context & MMU_CONTEXT_ASID_MASK; + unsigned long saved_asid = MMU_NO_ASID; + + start &= PAGE_MASK; + end += (PAGE_SIZE - 1); + end &= PAGE_MASK; + if (mm != current->mm) { + saved_asid = get_asid(); + set_asid(asid); + } + + while (start < end) { + __flush_tlb_page(asid, start); + start += PAGE_SIZE; + } + if (saved_asid != MMU_NO_ASID) + set_asid(saved_asid); + } + local_irq_restore(flags); + } +} + +/* + * TODO: If this is only called for addresses > TASK_SIZE, we can probably + * skip the ASID stuff and just use the Global bit... + */ +void flush_tlb_kernel_range(unsigned long start, unsigned long end) +{ + unsigned long flags; + int size; + + local_irq_save(flags); + size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT; + if (size > (MMU_DTLB_ENTRIES / 4)) { /* Too many entries to flush */ + flush_tlb_all(); + } else { + unsigned long asid = init_mm.context & MMU_CONTEXT_ASID_MASK; + unsigned long saved_asid = get_asid(); + + start &= PAGE_MASK; + end += (PAGE_SIZE - 1); + end &= PAGE_MASK; + set_asid(asid); + while (start < end) { + __flush_tlb_page(asid, start); + start += PAGE_SIZE; + } + set_asid(saved_asid); + } + local_irq_restore(flags); +} + +void flush_tlb_mm(struct mm_struct *mm) +{ + /* Invalidate all TLB entries of this process by getting a new ASID */ + if (mm->context != NO_CONTEXT) { + unsigned long flags; + + local_irq_save(flags); + mm->context = NO_CONTEXT; + if (mm == current->mm) + activate_context(mm); + local_irq_restore(flags); + } +} + +void flush_tlb_all(void) +{ + unsigned long flags; + + local_irq_save(flags); + sysreg_write(MMUCR, sysreg_read(MMUCR) | SYSREG_BIT(MMUCR_I)); + local_irq_restore(flags); +} + +#ifdef CONFIG_PROC_FS + +#include <linux/seq_file.h> +#include <linux/proc_fs.h> +#include <linux/init.h> + +static void *tlb_start(struct seq_file *tlb, loff_t *pos) +{ + static unsigned long tlb_index; + + if (*pos >= 32) + return NULL; + + tlb_index = 0; + return &tlb_index; +} + +static void *tlb_next(struct seq_file *tlb, void *v, loff_t *pos) +{ + unsigned long *index = v; + + if (*index >= 31) + return NULL; + + ++*pos; + ++*index; + return index; +} + +static void tlb_stop(struct seq_file *tlb, void *v) +{ + +} + +static int tlb_show(struct seq_file *tlb, void *v) +{ + unsigned int tlbehi, tlbehi_save, tlbelo, mmucr, mmucr_save; + unsigned long flags; + unsigned long *index = v; + + if (*index == 0) + seq_puts(tlb, "ID V G ASID VPN PFN AP SZ C B W D\n"); + + BUG_ON(*index >= 32); + + local_irq_save(flags); + mmucr_save = sysreg_read(MMUCR); + tlbehi_save = sysreg_read(TLBEHI); + mmucr = mmucr_save & 0x13; + mmucr |= *index << 14; + sysreg_write(MMUCR, mmucr); + + asm volatile("tlbr" : : : "memory"); + cpu_sync_pipeline(); + + tlbehi = sysreg_read(TLBEHI); + tlbelo = sysreg_read(TLBELO); + + sysreg_write(MMUCR, mmucr_save); + sysreg_write(TLBEHI, tlbehi_save); + cpu_sync_pipeline(); + local_irq_restore(flags); + + seq_printf(tlb, "%2lu: %c %c %02x %05x %05x %o %o %c %c %c %c\n", + *index, + (tlbehi & 0x200)?'1':'0', + (tlbelo & 0x100)?'1':'0', + (tlbehi & 0xff), + (tlbehi >> 12), (tlbelo >> 12), + (tlbelo >> 4) & 7, (tlbelo >> 2) & 3, + (tlbelo & 0x200)?'1':'0', + (tlbelo & 0x080)?'1':'0', + (tlbelo & 0x001)?'1':'0', + (tlbelo & 0x002)?'1':'0'); + + return 0; +} + +static struct seq_operations tlb_ops = { + .start = tlb_start, + .next = tlb_next, + .stop = tlb_stop, + .show = tlb_show, +}; + +static int tlb_open(struct inode *inode, struct file *file) +{ + return seq_open(file, &tlb_ops); +} + +static struct file_operations proc_tlb_operations = { + .open = tlb_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +static int __init proctlb_init(void) +{ + struct proc_dir_entry *entry; + + entry = create_proc_entry("tlb", 0, NULL); + if (entry) + entry->proc_fops = &proc_tlb_operations; + return 0; +} +late_initcall(proctlb_init); +#endif /* CONFIG_PROC_FS */
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index a601a17..f7b171b 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig
@@ -27,7 +27,11 @@ config GENERIC_HARDIRQS bool - default n + default y + +config GENERIC_HARDIRQS_NO__DO_IRQ + bool + default y config GENERIC_TIME bool @@ -251,6 +255,12 @@ endchoice endif +config FUJITSU_MB93493 + bool "MB93493 Multimedia chip" + help + Select this option if the MB93493 multimedia chip is going to be + used. + choice prompt "GP-Relative data support" default GPREL_DATA_8
diff --git a/arch/frv/kernel/Makefile b/arch/frv/kernel/Makefile index 5a827b3..32db349 100644 --- a/arch/frv/kernel/Makefile +++ b/arch/frv/kernel/Makefile
@@ -10,15 +10,14 @@ obj-y := $(heads-y) entry.o entry-table.o break.o switch_to.o kernel_thread.o \ process.o traps.o ptrace.o signal.o dma.o \ sys_frv.o time.o semaphore.o setup.o frv_ksyms.o \ - debug-stub.o irq.o irq-routing.o sleep.o uaccess.o + debug-stub.o irq.o sleep.o uaccess.o obj-$(CONFIG_GDBSTUB) += gdb-stub.o gdb-io.o obj-$(CONFIG_MB93091_VDK) += irq-mb93091.o -obj-$(CONFIG_MB93093_PDK) += irq-mb93093.o -obj-$(CONFIG_FUJITSU_MB93493) += irq-mb93493.o obj-$(CONFIG_PM) += pm.o cmode.o obj-$(CONFIG_MB93093_PDK) += pm-mb93093.o +obj-$(CONFIG_FUJITSU_MB93493) += irq-mb93493.o obj-$(CONFIG_SYSCTL) += sysctl.o obj-$(CONFIG_FUTEX) += futex.o obj-$(CONFIG_MODULES) += module.o
diff --git a/arch/frv/kernel/irq-mb93091.c b/arch/frv/kernel/irq-mb93091.c index 1381abc..369bc0a 100644 --- a/arch/frv/kernel/irq-mb93091.c +++ b/arch/frv/kernel/irq-mb93091.c
@@ -24,7 +24,6 @@ #include <asm/delay.h> #include <asm/irq.h> #include <asm/irc-regs.h> -#include <asm/irq-routing.h> #define __reg16(ADDR) (*(volatile unsigned short *)(ADDR)) @@ -33,83 +32,131 @@ #define __get_IFR() ({ __reg16(0xffc0000c); }) #define __clr_IFR(M) do { __reg16(0xffc0000c) = ~(M); wmb(); } while(0) -static void frv_fpga_doirq(struct irq_source *source); -static void frv_fpga_control(struct irq_group *group, int irq, int on); -/*****************************************************************************/ /* - * FPGA IRQ multiplexor + * on-motherboard FPGA PIC operations */ -static struct irq_source frv_fpga[4] = { -#define __FPGA(X, M) \ - [X] = { \ - .muxname = "fpga."#X, \ - .irqmask = M, \ - .doirq = frv_fpga_doirq, \ - } - - __FPGA(0, 0x0028), - __FPGA(1, 0x0050), - __FPGA(2, 0x1c00), - __FPGA(3, 0x6386), -}; - -static struct irq_group frv_fpga_irqs = { - .first_irq = IRQ_BASE_FPGA, - .control = frv_fpga_control, - .sources = { - [ 1] = &frv_fpga[3], - [ 2] = &frv_fpga[3], - [ 3] = &frv_fpga[0], - [ 4] = &frv_fpga[1], - [ 5] = &frv_fpga[0], - [ 6] = &frv_fpga[1], - [ 7] = &frv_fpga[3], - [ 8] = &frv_fpga[3], - [ 9] = &frv_fpga[3], - [10] = &frv_fpga[2], - [11] = &frv_fpga[2], - [12] = &frv_fpga[2], - [13] = &frv_fpga[3], - [14] = &frv_fpga[3], - }, -}; - - -static void frv_fpga_control(struct irq_group *group, int index, int on) +static void frv_fpga_mask(unsigned int irq) { uint16_t imr = __get_IMR(); - if (on) - imr &= ~(1 << index); - else - imr |= 1 << index; + imr |= 1 << (irq - IRQ_BASE_FPGA); __set_IMR(imr); } -static void frv_fpga_doirq(struct irq_source *source) +static void frv_fpga_ack(unsigned int irq) { - uint16_t mask, imr; - - imr = __get_IMR(); - mask = source->irqmask & ~imr & __get_IFR(); - if (mask) { - __set_IMR(imr | mask); - __clr_IFR(mask); - distribute_irqs(&frv_fpga_irqs, mask); - __set_IMR(imr); - } + __clr_IFR(1 << (irq - IRQ_BASE_FPGA)); } +static void frv_fpga_mask_ack(unsigned int irq) +{ + uint16_t imr = __get_IMR(); + + imr |= 1 << (irq - IRQ_BASE_FPGA); + __set_IMR(imr); + + __clr_IFR(1 << (irq - IRQ_BASE_FPGA)); +} + +static void frv_fpga_unmask(unsigned int irq) +{ + uint16_t imr = __get_IMR(); + + imr &= ~(1 << (irq - IRQ_BASE_FPGA)); + + __set_IMR(imr); +} + +static struct irq_chip frv_fpga_pic = { + .name = "mb93091", + .ack = frv_fpga_ack, + .mask = frv_fpga_mask, + .mask_ack = frv_fpga_mask_ack, + .unmask = frv_fpga_unmask, +}; + +/* + * FPGA PIC interrupt handler + */ +static irqreturn_t fpga_interrupt(int irq, void *_mask, struct pt_regs *regs) +{ + uint16_t imr, mask = (unsigned long) _mask; + + imr = __get_IMR(); + mask = mask & ~imr & __get_IFR(); + + /* poll all the triggered IRQs */ + while (mask) { + int irq; + + asm("scan %1,gr0,%0" : "=r"(irq) : "r"(mask)); + irq = 31 - irq; + mask &= ~(1 << irq); + + generic_handle_irq(IRQ_BASE_FPGA + irq, regs); + } + + return IRQ_HANDLED; +} + +/* + * define an interrupt action for each FPGA PIC output + * - use dev_id to indicate the FPGA PIC input to output mappings + */ +static struct irqaction fpga_irq[4] = { + [0] = { + .handler = fpga_interrupt, + .flags = IRQF_DISABLED | IRQF_SHARED, + .mask = CPU_MASK_NONE, + .name = "fpga.0", + .dev_id = (void *) 0x0028UL, + }, + [1] = { + .handler = fpga_interrupt, + .flags = IRQF_DISABLED | IRQF_SHARED, + .mask = CPU_MASK_NONE, + .name = "fpga.1", + .dev_id = (void *) 0x0050UL, + }, + [2] = { + .handler = fpga_interrupt, + .flags = IRQF_DISABLED | IRQF_SHARED, + .mask = CPU_MASK_NONE, + .name = "fpga.2", + .dev_id = (void *) 0x1c00UL, + }, + [3] = { + .handler = fpga_interrupt, + .flags = IRQF_DISABLED | IRQF_SHARED, + .mask = CPU_MASK_NONE, + .name = "fpga.3", + .dev_id = (void *) 0x6386UL, + } +}; + +/* + * initialise the motherboard FPGA's PIC + */ void __init fpga_init(void) { + int irq; + + /* all PIC inputs are all set to be low-level driven, apart from the + * NMI button (15) which is fixed at falling-edge + */ __set_IMR(0x7ffe); __clr_IFR(0x0000); - frv_irq_route_external(&frv_fpga[0], IRQ_CPU_EXTERNAL0); - frv_irq_route_external(&frv_fpga[1], IRQ_CPU_EXTERNAL1); - frv_irq_route_external(&frv_fpga[2], IRQ_CPU_EXTERNAL2); - frv_irq_route_external(&frv_fpga[3], IRQ_CPU_EXTERNAL3); - frv_irq_set_group(&frv_fpga_irqs); + for (irq = IRQ_BASE_FPGA + 1; irq <= IRQ_BASE_FPGA + 14; irq++) + set_irq_chip_and_handler(irq, &frv_fpga_pic, handle_level_irq); + + set_irq_chip_and_handler(IRQ_FPGA_NMI, &frv_fpga_pic, handle_edge_irq); + + /* the FPGA drives the first four external IRQ inputs on the CPU PIC */ + setup_irq(IRQ_CPU_EXTERNAL0, &fpga_irq[0]); + setup_irq(IRQ_CPU_EXTERNAL1, &fpga_irq[1]); + setup_irq(IRQ_CPU_EXTERNAL2, &fpga_irq[2]); + setup_irq(IRQ_CPU_EXTERNAL3, &fpga_irq[3]); }
diff --git a/arch/frv/kernel/irq-mb93093.c b/arch/frv/kernel/irq-mb93093.c index 48b2a64..a43a221 100644 --- a/arch/frv/kernel/irq-mb93093.c +++ b/arch/frv/kernel/irq-mb93093.c
@@ -1,6 +1,6 @@ /* irq-mb93093.c: MB93093 FPGA interrupt handling * - * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. + * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or @@ -24,7 +24,6 @@ #include <asm/delay.h> #include <asm/irq.h> #include <asm/irc-regs.h> -#include <asm/irq-routing.h> #define __reg16(ADDR) (*(volatile unsigned short *)(__region_CS2 + (ADDR))) @@ -33,66 +32,102 @@ #define __get_IFR() ({ __reg16(0x02); }) #define __clr_IFR(M) do { __reg16(0x02) = ~(M); wmb(); } while(0) -static void frv_fpga_doirq(struct irq_source *source); -static void frv_fpga_control(struct irq_group *group, int irq, int on); - -/*****************************************************************************/ /* - * FPGA IRQ multiplexor + * off-CPU FPGA PIC operations */ -static struct irq_source frv_fpga[4] = { -#define __FPGA(X, M) \ - [X] = { \ - .muxname = "fpga."#X, \ - .irqmask = M, \ - .doirq = frv_fpga_doirq, \ - } - - __FPGA(0, 0x0700), -}; - -static struct irq_group frv_fpga_irqs = { - .first_irq = IRQ_BASE_FPGA, - .control = frv_fpga_control, - .sources = { - [ 8] = &frv_fpga[0], - [ 9] = &frv_fpga[0], - [10] = &frv_fpga[0], - }, -}; - - -static void frv_fpga_control(struct irq_group *group, int index, int on) +static void frv_fpga_mask(unsigned int irq) { uint16_t imr = __get_IMR(); - if (on) - imr &= ~(1 << index); - else - imr |= 1 << index; + imr |= 1 << (irq - IRQ_BASE_FPGA); + __set_IMR(imr); +} + +static void frv_fpga_ack(unsigned int irq) +{ + __clr_IFR(1 << (irq - IRQ_BASE_FPGA)); +} + +static void frv_fpga_mask_ack(unsigned int irq) +{ + uint16_t imr = __get_IMR(); + + imr |= 1 << (irq - IRQ_BASE_FPGA); + __set_IMR(imr); + + __clr_IFR(1 << (irq - IRQ_BASE_FPGA)); +} + +static void frv_fpga_unmask(unsigned int irq) +{ + uint16_t imr = __get_IMR(); + + imr &= ~(1 << (irq - IRQ_BASE_FPGA)); __set_IMR(imr); } -static void frv_fpga_doirq(struct irq_source *source) +static struct irq_chip frv_fpga_pic = { + .name = "mb93093", + .ack = frv_fpga_ack, + .mask = frv_fpga_mask, + .mask_ack = frv_fpga_mask_ack, + .unmask = frv_fpga_unmask, + .end = frv_fpga_end, +}; + +/* + * FPGA PIC interrupt handler + */ +static irqreturn_t fpga_interrupt(int irq, void *_mask, struct pt_regs *regs) { - uint16_t mask, imr; + uint16_t imr, mask = (unsigned long) _mask; imr = __get_IMR(); - mask = source->irqmask & ~imr & __get_IFR(); - if (mask) { - __set_IMR(imr | mask); - __clr_IFR(mask); - distribute_irqs(&frv_fpga_irqs, mask); - __set_IMR(imr); + mask = mask & ~imr & __get_IFR(); + + /* poll all the triggered IRQs */ + while (mask) { + int irq; + + asm("scan %1,gr0,%0" : "=r"(irq) : "r"(mask)); + irq = 31 - irq; + mask &= ~(1 << irq); + + generic_irq_handle(IRQ_BASE_FPGA + irq, regs); } + + return IRQ_HANDLED; } +/* + * define an interrupt action for each FPGA PIC output + * - use dev_id to indicate the FPGA PIC input to output mappings + */ +static struct irqaction fpga_irq[1] = { + [0] = { + .handler = fpga_interrupt, + .flags = IRQF_DISABLED, + .mask = CPU_MASK_NONE, + .name = "fpga.0", + .dev_id = (void *) 0x0700UL, + } +}; + +/* + * initialise the motherboard FPGA's PIC + */ void __init fpga_init(void) { + int irq; + + /* all PIC inputs are all set to be edge triggered */ __set_IMR(0x0700); __clr_IFR(0x0000); - frv_irq_route_external(&frv_fpga[0], IRQ_CPU_EXTERNAL2); - frv_irq_set_group(&frv_fpga_irqs); + for (irq = IRQ_BASE_FPGA + 8; irq <= IRQ_BASE_FPGA + 10; irq++) + set_irq_chip_and_handler(irq, &frv_fpga_pic, handle_edge_irq); + + /* the FPGA drives external IRQ input #2 on the CPU PIC */ + setup_irq(IRQ_CPU_EXTERNAL2, &fpga_irq[0]); }
diff --git a/arch/frv/kernel/irq-mb93493.c b/arch/frv/kernel/irq-mb93493.c index 988d035..39c0188a 100644 --- a/arch/frv/kernel/irq-mb93493.c +++ b/arch/frv/kernel/irq-mb93493.c
@@ -1,6 +1,6 @@ /* irq-mb93493.c: MB93493 companion chip interrupt handler * - * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. + * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or @@ -24,84 +24,126 @@ #include <asm/delay.h> #include <asm/irq.h> #include <asm/irc-regs.h> -#include <asm/irq-routing.h> #include <asm/mb93493-irqs.h> +#include <asm/mb93493-regs.h> -static void frv_mb93493_doirq(struct irq_source *source); +#define IRQ_ROUTE_ONE(X) (X##_ROUTE << (X - IRQ_BASE_MB93493)) -/*****************************************************************************/ +#define IRQ_ROUTING \ + (IRQ_ROUTE_ONE(IRQ_MB93493_VDC) | \ + IRQ_ROUTE_ONE(IRQ_MB93493_VCC) | \ + IRQ_ROUTE_ONE(IRQ_MB93493_AUDIO_OUT) | \ + IRQ_ROUTE_ONE(IRQ_MB93493_I2C_0) | \ + IRQ_ROUTE_ONE(IRQ_MB93493_I2C_1) | \ + IRQ_ROUTE_ONE(IRQ_MB93493_USB) | \ + IRQ_ROUTE_ONE(IRQ_MB93493_LOCAL_BUS) | \ + IRQ_ROUTE_ONE(IRQ_MB93493_PCMCIA) | \ + IRQ_ROUTE_ONE(IRQ_MB93493_GPIO) | \ + IRQ_ROUTE_ONE(IRQ_MB93493_AUDIO_IN)) + /* - * MB93493 companion chip IRQ multiplexor + * daughter board PIC operations + * - there is no way to ACK interrupts in the MB93493 chip */ -static struct irq_source frv_mb93493[2] = { - [0] = { - .muxname = "mb93493.0", - .muxdata = __region_CS3 + 0x3d0, - .doirq = frv_mb93493_doirq, - .irqmask = 0x0000, - }, - [1] = { - .muxname = "mb93493.1", - .muxdata = __region_CS3 + 0x3d4, - .doirq = frv_mb93493_doirq, - .irqmask = 0x0000, - }, +static void frv_mb93493_mask(unsigned int irq) +{ + uint32_t iqsr; + volatile void *piqsr; + + if (IRQ_ROUTING & (1 << (irq - IRQ_BASE_MB93493))) + piqsr = __addr_MB93493_IQSR(1); + else + piqsr = __addr_MB93493_IQSR(0); + + iqsr = readl(piqsr); + iqsr &= ~(1 << (irq - IRQ_BASE_MB93493 + 16)); + writel(iqsr, piqsr); +} + +static void frv_mb93493_ack(unsigned int irq) +{ +} + +static void frv_mb93493_unmask(unsigned int irq) +{ + uint32_t iqsr; + volatile void *piqsr; + + if (IRQ_ROUTING & (1 << (irq - IRQ_BASE_MB93493))) + piqsr = __addr_MB93493_IQSR(1); + else + piqsr = __addr_MB93493_IQSR(0); + + iqsr = readl(piqsr); + iqsr |= 1 << (irq - IRQ_BASE_MB93493 + 16); + writel(iqsr, piqsr); +} + +static struct irq_chip frv_mb93493_pic = { + .name = "mb93093", + .ack = frv_mb93493_ack, + .mask = frv_mb93493_mask, + .mask_ack = frv_mb93493_mask, + .unmask = frv_mb93493_unmask, }; -static void frv_mb93493_control(struct irq_group *group, int index, int on) +/* + * MB93493 PIC interrupt handler + */ +static irqreturn_t mb93493_interrupt(int irq, void *_piqsr, struct pt_regs *regs) { - struct irq_source *source; + volatile void *piqsr = _piqsr; uint32_t iqsr; - if ((frv_mb93493[0].irqmask & (1 << index))) - source = &frv_mb93493[0]; - else - source = &frv_mb93493[1]; + iqsr = readl(piqsr); + iqsr = iqsr & (iqsr >> 16) & 0xffff; - iqsr = readl(source->muxdata); - if (on) - iqsr |= 1 << (index + 16); - else - iqsr &= ~(1 << (index + 16)); + /* poll all the triggered IRQs */ + while (iqsr) { + int irq; - writel(iqsr, source->muxdata); + asm("scan %1,gr0,%0" : "=r"(irq) : "r"(iqsr)); + irq = 31 - irq; + iqsr &= ~(1 << irq); + + generic_handle_irq(IRQ_BASE_MB93493 + irq, regs); + } + + return IRQ_HANDLED; } -static struct irq_group frv_mb93493_irqs = { - .first_irq = IRQ_BASE_MB93493, - .control = frv_mb93493_control, +/* + * define an interrupt action for each MB93493 PIC output + * - use dev_id to indicate the MB93493 PIC input to output mappings + */ +static struct irqaction mb93493_irq[2] = { + [0] = { + .handler = mb93493_interrupt, + .flags = IRQF_DISABLED | IRQF_SHARED, + .mask = CPU_MASK_NONE, + .name = "mb93493.0", + .dev_id = (void *) __addr_MB93493_IQSR(0), + }, + [1] = { + .handler = mb93493_interrupt, + .flags = IRQF_DISABLED | IRQF_SHARED, + .mask = CPU_MASK_NONE, + .name = "mb93493.1", + .dev_id = (void *) __addr_MB93493_IQSR(1), + } }; -static void frv_mb93493_doirq(struct irq_source *source) +/* + * initialise the motherboard MB93493's PIC + */ +void __init mb93493_init(void) { - uint32_t mask = readl(source->muxdata); - mask = mask & (mask >> 16) & 0xffff; + int irq; - if (mask) - distribute_irqs(&frv_mb93493_irqs, mask); -} + for (irq = IRQ_BASE_MB93493 + 0; irq <= IRQ_BASE_MB93493 + 10; irq++) + set_irq_chip_and_handler(irq, &frv_mb93493_pic, handle_edge_irq); -static void __init mb93493_irq_route(int irq, int source) -{ - frv_mb93493[source].irqmask |= 1 << (irq - IRQ_BASE_MB93493); - frv_mb93493_irqs.sources[irq - IRQ_BASE_MB93493] = &frv_mb93493[source]; -} - -void __init route_mb93493_irqs(void) -{ - frv_irq_route_external(&frv_mb93493[0], IRQ_CPU_MB93493_0); - frv_irq_route_external(&frv_mb93493[1], IRQ_CPU_MB93493_1); - - frv_irq_set_group(&frv_mb93493_irqs); - - mb93493_irq_route(IRQ_MB93493_VDC, IRQ_MB93493_VDC_ROUTE); - mb93493_irq_route(IRQ_MB93493_VCC, IRQ_MB93493_VCC_ROUTE); - mb93493_irq_route(IRQ_MB93493_AUDIO_IN, IRQ_MB93493_AUDIO_IN_ROUTE); - mb93493_irq_route(IRQ_MB93493_I2C_0, IRQ_MB93493_I2C_0_ROUTE); - mb93493_irq_route(IRQ_MB93493_I2C_1, IRQ_MB93493_I2C_1_ROUTE); - mb93493_irq_route(IRQ_MB93493_USB, IRQ_MB93493_USB_ROUTE); - mb93493_irq_route(IRQ_MB93493_LOCAL_BUS, IRQ_MB93493_LOCAL_BUS_ROUTE); - mb93493_irq_route(IRQ_MB93493_PCMCIA, IRQ_MB93493_PCMCIA_ROUTE); - mb93493_irq_route(IRQ_MB93493_GPIO, IRQ_MB93493_GPIO_ROUTE); - mb93493_irq_route(IRQ_MB93493_AUDIO_OUT, IRQ_MB93493_AUDIO_OUT_ROUTE); + /* the MB93493 drives external IRQ inputs on the CPU PIC */ + setup_irq(IRQ_CPU_MB93493_0, &mb93493_irq[0]); + setup_irq(IRQ_CPU_MB93493_1, &mb93493_irq[1]); }
diff --git a/arch/frv/kernel/irq-routing.c b/arch/frv/kernel/irq-routing.c deleted file mode 100644 index 53886ad..0000000 --- a/arch/frv/kernel/irq-routing.c +++ /dev/null
@@ -1,291 +0,0 @@ -/* irq-routing.c: IRQ routing - * - * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <linux/sched.h> -#include <linux/random.h> -#include <linux/init.h> -#include <linux/serial_reg.h> -#include <asm/io.h> -#include <asm/irq-routing.h> -#include <asm/irc-regs.h> -#include <asm/serial-regs.h> -#include <asm/dma.h> - -struct irq_level frv_irq_levels[16] = { - [0 ... 15] = { - .lock = SPIN_LOCK_UNLOCKED, - } -}; - -struct irq_group *irq_groups[NR_IRQ_GROUPS]; - -extern struct irq_group frv_cpu_irqs; - -void __init frv_irq_route(struct irq_source *source, int irqlevel) -{ - source->level = &frv_irq_levels[irqlevel]; - source->next = frv_irq_levels[irqlevel].sources; - frv_irq_levels[irqlevel].sources = source; -} - -void __init frv_irq_route_external(struct irq_source *source, int irq) -{ - int irqlevel = 0; - - switch (irq) { - case IRQ_CPU_EXTERNAL0: irqlevel = IRQ_XIRQ0_LEVEL; break; - case IRQ_CPU_EXTERNAL1: irqlevel = IRQ_XIRQ1_LEVEL; break; - case IRQ_CPU_EXTERNAL2: irqlevel = IRQ_XIRQ2_LEVEL; break; - case IRQ_CPU_EXTERNAL3: irqlevel = IRQ_XIRQ3_LEVEL; break; - case IRQ_CPU_EXTERNAL4: irqlevel = IRQ_XIRQ4_LEVEL; break; - case IRQ_CPU_EXTERNAL5: irqlevel = IRQ_XIRQ5_LEVEL; break; - case IRQ_CPU_EXTERNAL6: irqlevel = IRQ_XIRQ6_LEVEL; break; - case IRQ_CPU_EXTERNAL7: irqlevel = IRQ_XIRQ7_LEVEL; break; - default: BUG(); - } - - source->level = &frv_irq_levels[irqlevel]; - source->next = frv_irq_levels[irqlevel].sources; - frv_irq_levels[irqlevel].sources = source; -} - -void __init frv_irq_set_group(struct irq_group *group) -{ - irq_groups[group->first_irq >> NR_IRQ_LOG2_ACTIONS_PER_GROUP] = group; -} - -void distribute_irqs(struct irq_group *group, unsigned long irqmask) -{ - struct irqaction *action; - int irq; - - while (irqmask) { - asm("scan %1,gr0,%0" : "=r"(irq) : "r"(irqmask)); - if (irq < 0 || irq > 31) - asm volatile("break"); - irq = 31 - irq; - - irqmask &= ~(1 << irq); - action = group->actions[irq]; - - irq += group->first_irq; - - if (action) { - int status = 0; - -// if (!(action->flags & IRQF_DISABLED)) -// local_irq_enable(); - - do { - status |= action->flags; - action->handler(irq, action->dev_id, __frame); - action = action->next; - } while (action); - - if (status & IRQF_SAMPLE_RANDOM) - add_interrupt_randomness(irq); - local_irq_disable(); - } - } -} - -/*****************************************************************************/ -/* - * CPU UART interrupts - */ -static void frv_cpuuart_doirq(struct irq_source *source) -{ -// uint8_t iir = readb(source->muxdata + UART_IIR * 8); -// if ((iir & 0x0f) != UART_IIR_NO_INT) - distribute_irqs(&frv_cpu_irqs, source->irqmask); -} - -struct irq_source frv_cpuuart[2] = { -#define __CPUUART(X, A) \ - [X] = { \ - .muxname = "uart", \ - .muxdata = (volatile void __iomem *)(unsigned long)A,\ - .irqmask = 1 << IRQ_CPU_UART##X, \ - .doirq = frv_cpuuart_doirq, \ - } - - __CPUUART(0, UART0_BASE), - __CPUUART(1, UART1_BASE), -}; - -/*****************************************************************************/ -/* - * CPU DMA interrupts - */ -static void frv_cpudma_doirq(struct irq_source *source) -{ - uint32_t cstr = readl(source->muxdata + DMAC_CSTRx); - if (cstr & DMAC_CSTRx_INT) - distribute_irqs(&frv_cpu_irqs, source->irqmask); -} - -struct irq_source frv_cpudma[8] = { -#define __CPUDMA(X, A) \ - [X] = { \ - .muxname = "dma", \ - .muxdata = (volatile void __iomem *)(unsigned long)A,\ - .irqmask = 1 << IRQ_CPU_DMA##X, \ - .doirq = frv_cpudma_doirq, \ - } - - __CPUDMA(0, 0xfe000900), - __CPUDMA(1, 0xfe000980), - __CPUDMA(2, 0xfe000a00), - __CPUDMA(3, 0xfe000a80), - __CPUDMA(4, 0xfe001000), - __CPUDMA(5, 0xfe001080), - __CPUDMA(6, 0xfe001100), - __CPUDMA(7, 0xfe001180), -}; - -/*****************************************************************************/ -/* - * CPU timer interrupts - can't tell whether they've generated an interrupt or not - */ -static void frv_cputimer_doirq(struct irq_source *source) -{ - distribute_irqs(&frv_cpu_irqs, source->irqmask); -} - -struct irq_source frv_cputimer[3] = { -#define __CPUTIMER(X) \ - [X] = { \ - .muxname = "timer", \ - .muxdata = NULL, \ - .irqmask = 1 << IRQ_CPU_TIMER##X, \ - .doirq = frv_cputimer_doirq, \ - } - - __CPUTIMER(0), - __CPUTIMER(1), - __CPUTIMER(2), -}; - -/*****************************************************************************/ -/* - * external CPU interrupts - can't tell directly whether they've generated an interrupt or not - */ -static void frv_cpuexternal_doirq(struct irq_source *source) -{ - distribute_irqs(&frv_cpu_irqs, source->irqmask); -} - -struct irq_source frv_cpuexternal[8] = { -#define __CPUEXTERNAL(X) \ - [X] = { \ - .muxname = "ext", \ - .muxdata = NULL, \ - .irqmask = 1 << IRQ_CPU_EXTERNAL##X, \ - .doirq = frv_cpuexternal_doirq, \ - } - - __CPUEXTERNAL(0), - __CPUEXTERNAL(1), - __CPUEXTERNAL(2), - __CPUEXTERNAL(3), - __CPUEXTERNAL(4), - __CPUEXTERNAL(5), - __CPUEXTERNAL(6), - __CPUEXTERNAL(7), -}; - -#define set_IRR(N,A,B,C,D) __set_IRR(N, (A << 28) | (B << 24) | (C << 20) | (D << 16)) - -struct irq_group frv_cpu_irqs = { - .sources = { - [IRQ_CPU_UART0] = &frv_cpuuart[0], - [IRQ_CPU_UART1] = &frv_cpuuart[1], - [IRQ_CPU_TIMER0] = &frv_cputimer[0], - [IRQ_CPU_TIMER1] = &frv_cputimer[1], - [IRQ_CPU_TIMER2] = &frv_cputimer[2], - [IRQ_CPU_DMA0] = &frv_cpudma[0], - [IRQ_CPU_DMA1] = &frv_cpudma[1], - [IRQ_CPU_DMA2] = &frv_cpudma[2], - [IRQ_CPU_DMA3] = &frv_cpudma[3], - [IRQ_CPU_DMA4] = &frv_cpudma[4], - [IRQ_CPU_DMA5] = &frv_cpudma[5], - [IRQ_CPU_DMA6] = &frv_cpudma[6], - [IRQ_CPU_DMA7] = &frv_cpudma[7], - [IRQ_CPU_EXTERNAL0] = &frv_cpuexternal[0], - [IRQ_CPU_EXTERNAL1] = &frv_cpuexternal[1], - [IRQ_CPU_EXTERNAL2] = &frv_cpuexternal[2], - [IRQ_CPU_EXTERNAL3] = &frv_cpuexternal[3], - [IRQ_CPU_EXTERNAL4] = &frv_cpuexternal[4], - [IRQ_CPU_EXTERNAL5] = &frv_cpuexternal[5], - [IRQ_CPU_EXTERNAL6] = &frv_cpuexternal[6], - [IRQ_CPU_EXTERNAL7] = &frv_cpuexternal[7], - }, -}; - -/*****************************************************************************/ -/* - * route the CPU's interrupt sources - */ -void __init route_cpu_irqs(void) -{ - frv_irq_set_group(&frv_cpu_irqs); - - __set_IITMR(0, 0x003f0000); /* DMA0-3, TIMER0-2 IRQ detect levels */ - __set_IITMR(1, 0x20000000); /* ERR0-1, UART0-1, DMA4-7 IRQ detect levels */ - - /* route UART and error interrupts */ - frv_irq_route(&frv_cpuuart[0], IRQ_UART0_LEVEL); - frv_irq_route(&frv_cpuuart[1], IRQ_UART1_LEVEL); - - set_IRR(6, IRQ_GDBSTUB_LEVEL, IRQ_GDBSTUB_LEVEL, IRQ_UART1_LEVEL, IRQ_UART0_LEVEL); - - /* route DMA channel interrupts */ - frv_irq_route(&frv_cpudma[0], IRQ_DMA0_LEVEL); - frv_irq_route(&frv_cpudma[1], IRQ_DMA1_LEVEL); - frv_irq_route(&frv_cpudma[2], IRQ_DMA2_LEVEL); - frv_irq_route(&frv_cpudma[3], IRQ_DMA3_LEVEL); - frv_irq_route(&frv_cpudma[4], IRQ_DMA4_LEVEL); - frv_irq_route(&frv_cpudma[5], IRQ_DMA5_LEVEL); - frv_irq_route(&frv_cpudma[6], IRQ_DMA6_LEVEL); - frv_irq_route(&frv_cpudma[7], IRQ_DMA7_LEVEL); - - set_IRR(4, IRQ_DMA3_LEVEL, IRQ_DMA2_LEVEL, IRQ_DMA1_LEVEL, IRQ_DMA0_LEVEL); - set_IRR(7, IRQ_DMA7_LEVEL, IRQ_DMA6_LEVEL, IRQ_DMA5_LEVEL, IRQ_DMA4_LEVEL); - - /* route timer interrupts */ - frv_irq_route(&frv_cputimer[0], IRQ_TIMER0_LEVEL); - frv_irq_route(&frv_cputimer[1], IRQ_TIMER1_LEVEL); - frv_irq_route(&frv_cputimer[2], IRQ_TIMER2_LEVEL); - - set_IRR(5, 0, IRQ_TIMER2_LEVEL, IRQ_TIMER1_LEVEL, IRQ_TIMER0_LEVEL); - - /* route external interrupts */ - frv_irq_route(&frv_cpuexternal[0], IRQ_XIRQ0_LEVEL); - frv_irq_route(&frv_cpuexternal[1], IRQ_XIRQ1_LEVEL); - frv_irq_route(&frv_cpuexternal[2], IRQ_XIRQ2_LEVEL); - frv_irq_route(&frv_cpuexternal[3], IRQ_XIRQ3_LEVEL); - frv_irq_route(&frv_cpuexternal[4], IRQ_XIRQ4_LEVEL); - frv_irq_route(&frv_cpuexternal[5], IRQ_XIRQ5_LEVEL); - frv_irq_route(&frv_cpuexternal[6], IRQ_XIRQ6_LEVEL); - frv_irq_route(&frv_cpuexternal[7], IRQ_XIRQ7_LEVEL); - - set_IRR(2, IRQ_XIRQ7_LEVEL, IRQ_XIRQ6_LEVEL, IRQ_XIRQ5_LEVEL, IRQ_XIRQ4_LEVEL); - set_IRR(3, IRQ_XIRQ3_LEVEL, IRQ_XIRQ2_LEVEL, IRQ_XIRQ1_LEVEL, IRQ_XIRQ0_LEVEL); - -#if defined(CONFIG_MB93091_VDK) - __set_TM1(0x55550000); /* XIRQ7-0 all active low */ -#elif defined(CONFIG_MB93093_PDK) - __set_TM1(0x15550000); /* XIRQ7 active high, 6-0 all active low */ -#else -#error dont know external IRQ trigger levels for this setup -#endif - -} /* end route_cpu_irqs() */
diff --git a/arch/frv/kernel/irq.c b/arch/frv/kernel/irq.c index 0896701..5ac041c 100644 --- a/arch/frv/kernel/irq.c +++ b/arch/frv/kernel/irq.c
@@ -1,6 +1,6 @@ /* irq.c: FRV IRQ handling * - * Copyright (C) 2003, 2004 Red Hat, Inc. All Rights Reserved. + * Copyright (C) 2003, 2004, 2006 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or @@ -9,13 +9,6 @@ * 2 of the License, or (at your option) any later version. */ -/* - * (mostly architecture independent, will move to kernel/irq.c in 2.5.) - * - * IRQs are in fact implemented a bit like signal handlers for the kernel. - * Naturally it's not a 1:1 relation, but there are similarities. - */ - #include <linux/ptrace.h> #include <linux/errno.h> #include <linux/signal.h> @@ -43,19 +36,16 @@ #include <asm/delay.h> #include <asm/irq.h> #include <asm/irc-regs.h> -#include <asm/irq-routing.h> #include <asm/gdb-stub.h> +#define set_IRR(N,A,B,C,D) __set_IRR(N, (A << 28) | (B << 24) | (C << 20) | (D << 16)) + extern void __init fpga_init(void); -extern void __init route_mb93493_irqs(void); +#ifdef CONFIG_FUJITSU_MB93493 +extern void __init mb93493_init(void); +#endif -static void register_irq_proc (unsigned int irq); - -/* - * Special irq handlers. - */ - -irqreturn_t no_action(int cpl, void *dev_id, struct pt_regs *regs) { return IRQ_HANDLED; } +#define __reg16(ADDR) (*(volatile unsigned short *)(ADDR)) atomic_t irq_err_count; @@ -64,215 +54,86 @@ */ int show_interrupts(struct seq_file *p, void *v) { - struct irqaction *action; - struct irq_group *group; + int i = *(loff_t *) v, cpu; + struct irqaction * action; unsigned long flags; - int level, grp, ix, i, j; - i = *(loff_t *) v; + if (i == 0) { + char cpuname[12]; - switch (i) { - case 0: - seq_printf(p, " "); - for_each_online_cpu(j) - seq_printf(p, "CPU%d ",j); - + seq_printf(p, " "); + for_each_present_cpu(cpu) { + sprintf(cpuname, "CPU%d", cpu); + seq_printf(p, " %10s", cpuname); + } seq_putc(p, '\n'); - break; + } - case 1 ... NR_IRQ_GROUPS * NR_IRQ_ACTIONS_PER_GROUP: - local_irq_save(flags); + if (i < NR_IRQS) { + spin_lock_irqsave(&irq_desc[i].lock, flags); + action = irq_desc[i].action; + if (action) { + seq_printf(p, "%3d: ", i); + for_each_present_cpu(cpu) + seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[i]); + seq_printf(p, " %10s", irq_desc[i].chip->name ? : "-"); + seq_printf(p, " %s", action->name); + for (action = action->next; + action; + action = action->next) + seq_printf(p, ", %s", action->name); - grp = (i - 1) / NR_IRQ_ACTIONS_PER_GROUP; - group = irq_groups[grp]; - if (!group) - goto skip; + seq_putc(p, '\n'); + } - ix = (i - 1) % NR_IRQ_ACTIONS_PER_GROUP; - action = group->actions[ix]; - if (!action) - goto skip; - - seq_printf(p, "%3d: ", i - 1); - -#ifndef CONFIG_SMP - seq_printf(p, "%10u ", kstat_irqs(i)); -#else - for_each_online_cpu(j) - seq_printf(p, "%10u ", kstat_cpu(j).irqs[i - 1]); -#endif - - level = group->sources[ix]->level - frv_irq_levels; - - seq_printf(p, " %12s@%x", group->sources[ix]->muxname, level); - seq_printf(p, " %s", action->name); - - for (action = action->next; action; action = action->next) - seq_printf(p, ", %s", action->name); - - seq_putc(p, '\n'); -skip: - local_irq_restore(flags); - break; - - case NR_IRQ_GROUPS * NR_IRQ_ACTIONS_PER_GROUP + 1: - seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count)); - break; - - default: - break; + spin_unlock_irqrestore(&irq_desc[i].lock, flags); + } else if (i == NR_IRQS) { + seq_printf(p, "Err: %10u\n", atomic_read(&irq_err_count)); } return 0; } - /* - * Generic enable/disable code: this just calls - * down into the PIC-specific version for the actual - * hardware disable after having gotten the irq - * controller lock. + * on-CPU PIC operations */ - -/** - * disable_irq_nosync - disable an irq without waiting - * @irq: Interrupt to disable - * - * Disable the selected interrupt line. Disables and Enables are - * nested. - * Unlike disable_irq(), this function does not ensure existing - * instances of the IRQ handler have completed before returning. - * - * This function may be called from IRQ context. - */ - -void disable_irq_nosync(unsigned int irq) +static void frv_cpupic_ack(unsigned int irqlevel) { - struct irq_source *source; - struct irq_group *group; - struct irq_level *level; - unsigned long flags; - int idx = irq & (NR_IRQ_ACTIONS_PER_GROUP - 1); - - group = irq_groups[irq >> NR_IRQ_LOG2_ACTIONS_PER_GROUP]; - if (!group) - BUG(); - - source = group->sources[idx]; - if (!source) - BUG(); - - level = source->level; - - spin_lock_irqsave(&level->lock, flags); - - if (group->control) { - if (!group->disable_cnt[idx]++) - group->control(group, idx, 0); - } else if (!level->disable_count++) { - __set_MASK(level - frv_irq_levels); - } - - spin_unlock_irqrestore(&level->lock, flags); + __clr_RC(irqlevel); + __clr_IRL(); } -EXPORT_SYMBOL(disable_irq_nosync); - -/** - * disable_irq - disable an irq and wait for completion - * @irq: Interrupt to disable - * - * Disable the selected interrupt line. Enables and Disables are - * nested. - * This function waits for any pending IRQ handlers for this interrupt - * to complete before returning. If you use this function while - * holding a resource the IRQ handler may need you will deadlock. - * - * This function may be called - with care - from IRQ context. - */ - -void disable_irq(unsigned int irq) +static void frv_cpupic_mask(unsigned int irqlevel) { - disable_irq_nosync(irq); - -#ifdef CONFIG_SMP - if (!local_irq_count(smp_processor_id())) { - do { - barrier(); - } while (irq_desc[irq].status & IRQ_INPROGRESS); - } -#endif + __set_MASK(irqlevel); } -EXPORT_SYMBOL(disable_irq); - -/** - * enable_irq - enable handling of an irq - * @irq: Interrupt to enable - * - * Undoes the effect of one call to disable_irq(). If this - * matches the last disable, processing of interrupts on this - * IRQ line is re-enabled. - * - * This function may be called from IRQ context. - */ - -void enable_irq(unsigned int irq) +static void frv_cpupic_mask_ack(unsigned int irqlevel) { - struct irq_source *source; - struct irq_group *group; - struct irq_level *level; - unsigned long flags; - int idx = irq & (NR_IRQ_ACTIONS_PER_GROUP - 1); - int count; - - group = irq_groups[irq >> NR_IRQ_LOG2_ACTIONS_PER_GROUP]; - if (!group) - BUG(); - - source = group->sources[idx]; - if (!source) - BUG(); - - level = source->level; - - spin_lock_irqsave(&level->lock, flags); - - if (group->control) - count = group->disable_cnt[idx]; - else - count = level->disable_count; - - switch (count) { - case 1: - if (group->control) { - if (group->actions[idx]) - group->control(group, idx, 1); - } else { - if (level->usage) - __clr_MASK(level - frv_irq_levels); - } - /* fall-through */ - - default: - count--; - break; - - case 0: - printk("enable_irq(%u) unbalanced from %p\n", irq, __builtin_return_address(0)); - } - - if (group->control) - group->disable_cnt[idx] = count; - else - level->disable_count = count; - - spin_unlock_irqrestore(&level->lock, flags); + __set_MASK(irqlevel); + __clr_RC(irqlevel); + __clr_IRL(); } -EXPORT_SYMBOL(enable_irq); +static void frv_cpupic_unmask(unsigned int irqlevel) +{ + __clr_MASK(irqlevel); +} -/*****************************************************************************/ +static void frv_cpupic_end(unsigned int irqlevel) +{ + __clr_MASK(irqlevel); +} + +static struct irq_chip frv_cpu_pic = { + .name = "cpu", + .ack = frv_cpupic_ack, + .mask = frv_cpupic_mask, + .mask_ack = frv_cpupic_mask_ack, + .unmask = frv_cpupic_unmask, + .end = frv_cpupic_end, +}; + /* * handles all normal device IRQ's * - registers are referred to by the __frame variable (GR28) @@ -281,463 +142,65 @@ */ asmlinkage void do_IRQ(void) { - struct irq_source *source; - int level, cpu; - irq_enter(); - - level = (__frame->tbr >> 4) & 0xf; - cpu = smp_processor_id(); - - if ((unsigned long) __frame - (unsigned long) (current + 1) < 512) - BUG(); - - __set_MASK(level); - __clr_RC(level); - __clr_IRL(); - - kstat_this_cpu.irqs[level]++; - - for (source = frv_irq_levels[level].sources; source; source = source->next) - source->doirq(source); - - __clr_MASK(level); - + generic_handle_irq(__get_IRL(), __frame); irq_exit(); +} -} /* end do_IRQ() */ - -/*****************************************************************************/ /* * handles all NMIs when not co-opted by the debugger * - registers are referred to by the __frame variable (GR28) */ asmlinkage void do_NMI(void) { -} /* end do_NMI() */ - -/*****************************************************************************/ -/** - * request_irq - allocate an interrupt line - * @irq: Interrupt line to allocate - * @handler: Function to be called when the IRQ occurs - * @irqflags: Interrupt type flags - * @devname: An ascii name for the claiming device - * @dev_id: A cookie passed back to the handler function - * - * This call allocates interrupt resources and enables the - * interrupt line and IRQ handling. From the point this - * call is made your handler function may be invoked. Since - * your handler function must clear any interrupt the board - * raises, you must take care both to initialise your hardware - * and to set up the interrupt handler in the right order. - * - * Dev_id must be globally unique. Normally the address of the - * device data structure is used as the cookie. Since the handler - * receives this value it makes sense to use it. - * - * If your interrupt is shared you must pass a non NULL dev_id - * as this is required when freeing the interrupt. - * - * Flags: - * - * IRQF_SHARED Interrupt is shared - * - * IRQF_DISABLED Disable local interrupts while processing - * - * IRQF_SAMPLE_RANDOM The interrupt can be used for entropy - * - */ - -int request_irq(unsigned int irq, - irqreturn_t (*handler)(int, void *, struct pt_regs *), - unsigned long irqflags, - const char * devname, - void *dev_id) -{ - int retval; - struct irqaction *action; - -#if 1 - /* - * Sanity-check: shared interrupts should REALLY pass in - * a real dev-ID, otherwise we'll have trouble later trying - * to figure out which interrupt is which (messes up the - * interrupt freeing logic etc). - */ - if (irqflags & IRQF_SHARED) { - if (!dev_id) - printk("Bad boy: %s (at 0x%x) called us without a dev_id!\n", - devname, (&irq)[-1]); - } -#endif - - if ((irq >> NR_IRQ_LOG2_ACTIONS_PER_GROUP) >= NR_IRQ_GROUPS) - return -EINVAL; - if (!handler) - return -EINVAL; - - action = (struct irqaction *) kmalloc(sizeof(struct irqaction), GFP_KERNEL); - if (!action) - return -ENOMEM; - - action->handler = handler; - action->flags = irqflags; - action->mask = CPU_MASK_NONE; - action->name = devname; - action->next = NULL; - action->dev_id = dev_id; - - retval = setup_irq(irq, action); - if (retval) - kfree(action); - return retval; } -EXPORT_SYMBOL(request_irq); - -/** - * free_irq - free an interrupt - * @irq: Interrupt line to free - * @dev_id: Device identity to free - * - * Remove an interrupt handler. The handler is removed and if the - * interrupt line is no longer in use by any driver it is disabled. - * On a shared IRQ the caller must ensure the interrupt is disabled - * on the card it drives before calling this function. The function - * does not return until any executing interrupts for this IRQ - * have completed. - * - * This function may be called from interrupt context. - * - * Bugs: Attempting to free an irq in a handler for the same irq hangs - * the machine. - */ - -void free_irq(unsigned int irq, void *dev_id) -{ - struct irq_source *source; - struct irq_group *group; - struct irq_level *level; - struct irqaction **p, **pp; - unsigned long flags; - - if ((irq >> NR_IRQ_LOG2_ACTIONS_PER_GROUP) >= NR_IRQ_GROUPS) - return; - - group = irq_groups[irq >> NR_IRQ_LOG2_ACTIONS_PER_GROUP]; - if (!group) - BUG(); - - source = group->sources[irq & (NR_IRQ_ACTIONS_PER_GROUP - 1)]; - if (!source) - BUG(); - - level = source->level; - p = &group->actions[irq & (NR_IRQ_ACTIONS_PER_GROUP - 1)]; - - spin_lock_irqsave(&level->lock, flags); - - for (pp = p; *pp; pp = &(*pp)->next) { - struct irqaction *action = *pp; - - if (action->dev_id != dev_id) - continue; - - /* found it - remove from the list of entries */ - *pp = action->next; - - level->usage--; - - if (p == pp && group->control) - group->control(group, irq & (NR_IRQ_ACTIONS_PER_GROUP - 1), 0); - - if (level->usage == 0) - __set_MASK(level - frv_irq_levels); - - spin_unlock_irqrestore(&level->lock,flags); - -#ifdef CONFIG_SMP - /* Wait to make sure it's not being used on another CPU */ - while (desc->status & IRQ_INPROGRESS) - barrier(); -#endif - kfree(action); - return; - } -} - -EXPORT_SYMBOL(free_irq); - -/* - * IRQ autodetection code.. - * - * This depends on the fact that any interrupt that comes in on to an - * unassigned IRQ will cause GxICR_DETECT to be set - */ - -static DECLARE_MUTEX(probe_sem); - -/** - * probe_irq_on - begin an interrupt autodetect - * - * Commence probing for an interrupt. The interrupts are scanned - * and a mask of potential interrupt lines is returned. - * - */ - -unsigned long probe_irq_on(void) -{ - down(&probe_sem); - return 0; -} - -EXPORT_SYMBOL(probe_irq_on); - -/* - * Return a mask of triggered interrupts (this - * can handle only legacy ISA interrupts). - */ - -/** - * probe_irq_mask - scan a bitmap of interrupt lines - * @val: mask of interrupts to consider - * - * Scan the ISA bus interrupt lines and return a bitmap of - * active interrupts. The interrupt probe logic state is then - * returned to its previous value. - * - * Note: we need to scan all the irq's even though we will - * only return ISA irq numbers - just so that we reset them - * all to a known state. - */ -unsigned int probe_irq_mask(unsigned long xmask) -{ - up(&probe_sem); - return 0; -} - -EXPORT_SYMBOL(probe_irq_mask); - -/* - * Return the one interrupt that triggered (this can - * handle any interrupt source). - */ - -/** - * probe_irq_off - end an interrupt autodetect - * @xmask: mask of potential interrupts (unused) - * - * Scans the unused interrupt lines and returns the line which - * appears to have triggered the interrupt. If no interrupt was - * found then zero is returned. If more than one interrupt is - * found then minus the first candidate is returned to indicate - * their is doubt. - * - * The interrupt probe logic state is returned to its previous - * value. - * - * BUGS: When used in a module (which arguably shouldnt happen) - * nothing prevents two IRQ probe callers from overlapping. The - * results of this are non-optimal. - */ - -int probe_irq_off(unsigned long xmask) -{ - up(&probe_sem); - return -1; -} - -EXPORT_SYMBOL(probe_irq_off); - -/* this was setup_x86_irq but it seems pretty generic */ -int setup_irq(unsigned int irq, struct irqaction *new) -{ - struct irq_source *source; - struct irq_group *group; - struct irq_level *level; - struct irqaction **p, **pp; - unsigned long flags; - - group = irq_groups[irq >> NR_IRQ_LOG2_ACTIONS_PER_GROUP]; - if (!group) - BUG(); - - source = group->sources[irq & (NR_IRQ_ACTIONS_PER_GROUP - 1)]; - if (!source) - BUG(); - - level = source->level; - - p = &group->actions[irq & (NR_IRQ_ACTIONS_PER_GROUP - 1)]; - - /* - * Some drivers like serial.c use request_irq() heavily, - * so we have to be careful not to interfere with a - * running system. - */ - if (new->flags & IRQF_SAMPLE_RANDOM) { - /* - * This function might sleep, we want to call it first, - * outside of the atomic block. - * Yes, this might clear the entropy pool if the wrong - * driver is attempted to be loaded, without actually - * installing a new handler, but is this really a problem, - * only the sysadmin is able to do this. - */ - rand_initialize_irq(irq); - } - - /* must juggle the interrupt processing stuff with interrupts disabled */ - spin_lock_irqsave(&level->lock, flags); - - /* can't share interrupts unless all parties agree to */ - if (level->usage != 0 && !(level->flags & new->flags & IRQF_SHARED)) { - spin_unlock_irqrestore(&level->lock,flags); - return -EBUSY; - } - - /* add new interrupt at end of irq queue */ - pp = p; - while (*pp) - pp = &(*pp)->next; - - *pp = new; - - level->usage++; - level->flags = new->flags; - - /* turn the interrupts on */ - if (level->usage == 1) - __clr_MASK(level - frv_irq_levels); - - if (p == pp && group->control) - group->control(group, irq & (NR_IRQ_ACTIONS_PER_GROUP - 1), 1); - - spin_unlock_irqrestore(&level->lock, flags); - register_irq_proc(irq); - return 0; -} - -static struct proc_dir_entry * root_irq_dir; -static struct proc_dir_entry * irq_dir [NR_IRQS]; - -#define HEX_DIGITS 8 - -static unsigned int parse_hex_value (const char __user *buffer, - unsigned long count, unsigned long *ret) -{ - unsigned char hexnum [HEX_DIGITS]; - unsigned long value; - int i; - - if (!count) - return -EINVAL; - if (count > HEX_DIGITS) - count = HEX_DIGITS; - if (copy_from_user(hexnum, buffer, count)) - return -EFAULT; - - /* - * Parse the first 8 characters as a hex string, any non-hex char - * is end-of-string. '00e1', 'e1', '00E1', 'E1' are all the same. - */ - value = 0; - - for (i = 0; i < count; i++) { - unsigned int c = hexnum[i]; - - switch (c) { - case '0' ... '9': c -= '0'; break; - case 'a' ... 'f': c -= 'a'-10; break; - case 'A' ... 'F': c -= 'A'-10; break; - default: - goto out; - } - value = (value << 4) | c; - } -out: - *ret = value; - return 0; -} - - -static int prof_cpu_mask_read_proc (char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - unsigned long *mask = (unsigned long *) data; - if (count < HEX_DIGITS+1) - return -EINVAL; - return sprintf (page, "%08lx\n", *mask); -} - -static int prof_cpu_mask_write_proc (struct file *file, const char __user *buffer, - unsigned long count, void *data) -{ - unsigned long *mask = (unsigned long *) data, full_count = count, err; - unsigned long new_value; - - show_state(); - err = parse_hex_value(buffer, count, &new_value); - if (err) - return err; - - *mask = new_value; - return full_count; -} - -#define MAX_NAMELEN 10 - -static void register_irq_proc (unsigned int irq) -{ - char name [MAX_NAMELEN]; - - if (!root_irq_dir || irq_dir[irq]) - return; - - memset(name, 0, MAX_NAMELEN); - sprintf(name, "%d", irq); - - /* create /proc/irq/1234 */ - irq_dir[irq] = proc_mkdir(name, root_irq_dir); -} - -unsigned long prof_cpu_mask = -1; - -void init_irq_proc (void) -{ - struct proc_dir_entry *entry; - int i; - - /* create /proc/irq */ - root_irq_dir = proc_mkdir("irq", NULL); - - /* create /proc/irq/prof_cpu_mask */ - entry = create_proc_entry("prof_cpu_mask", 0600, root_irq_dir); - if (!entry) - return; - - entry->nlink = 1; - entry->data = (void *)&prof_cpu_mask; - entry->read_proc = prof_cpu_mask_read_proc; - entry->write_proc = prof_cpu_mask_write_proc; - - /* - * Create entries for all existing IRQs. - */ - for (i = 0; i < NR_IRQS; i++) - register_irq_proc(i); -} - -/*****************************************************************************/ /* * initialise the interrupt system */ void __init init_IRQ(void) { - route_cpu_irqs(); + int level; + + for (level = 1; level <= 14; level++) + set_irq_chip_and_handler(level, &frv_cpu_pic, + handle_level_irq); + + set_irq_handler(IRQ_CPU_TIMER0, handle_edge_irq); + + /* set the trigger levels for internal interrupt sources + * - timers all falling-edge + * - ERR0 is rising-edge + * - all others are high-level + */ + __set_IITMR(0, 0x003f0000); /* DMA0-3, TIMER0-2 */ + __set_IITMR(1, 0x20000000); /* ERR0-1, UART0-1, DMA4-7 */ + + /* route internal interrupts */ + set_IRR(4, IRQ_DMA3_LEVEL, IRQ_DMA2_LEVEL, IRQ_DMA1_LEVEL, + IRQ_DMA0_LEVEL); + set_IRR(5, 0, IRQ_TIMER2_LEVEL, IRQ_TIMER1_LEVEL, IRQ_TIMER0_LEVEL); + set_IRR(6, IRQ_GDBSTUB_LEVEL, IRQ_GDBSTUB_LEVEL, + IRQ_UART1_LEVEL, IRQ_UART0_LEVEL); + set_IRR(7, IRQ_DMA7_LEVEL, IRQ_DMA6_LEVEL, IRQ_DMA5_LEVEL, + IRQ_DMA4_LEVEL); + + /* route external interrupts */ + set_IRR(2, IRQ_XIRQ7_LEVEL, IRQ_XIRQ6_LEVEL, IRQ_XIRQ5_LEVEL, + IRQ_XIRQ4_LEVEL); + set_IRR(3, IRQ_XIRQ3_LEVEL, IRQ_XIRQ2_LEVEL, IRQ_XIRQ1_LEVEL, + IRQ_XIRQ0_LEVEL); + +#if defined(CONFIG_MB93091_VDK) + __set_TM1(0x55550000); /* XIRQ7-0 all active low */ +#elif defined(CONFIG_MB93093_PDK) + __set_TM1(0x15550000); /* XIRQ7 active high, 6-0 all active low */ +#else +#error dont know external IRQ trigger levels for this setup +#endif + fpga_init(); #ifdef CONFIG_FUJITSU_MB93493 - route_mb93493_irqs(); + mb93493_init(); #endif -} /* end init_IRQ() */ +}
diff --git a/arch/frv/kernel/setup.c b/arch/frv/kernel/setup.c index af08ccd..d96a57e 100644 --- a/arch/frv/kernel/setup.c +++ b/arch/frv/kernel/setup.c
@@ -43,7 +43,6 @@ #include <asm/mb-regs.h> #include <asm/mb93493-regs.h> #include <asm/gdb-stub.h> -#include <asm/irq-routing.h> #include <asm/io.h> #ifdef CONFIG_BLK_DEV_INITRD
diff --git a/arch/frv/kernel/time.c b/arch/frv/kernel/time.c index 68a77fe..3d0284b 100644 --- a/arch/frv/kernel/time.c +++ b/arch/frv/kernel/time.c
@@ -26,7 +26,6 @@ #include <asm/timer-regs.h> #include <asm/mb-regs.h> #include <asm/mb86943a.h> -#include <asm/irq-routing.h> #include <linux/timex.h>
diff --git a/arch/frv/mb93090-mb00/pci-irq.c b/arch/frv/mb93090-mb00/pci-irq.c index 2278c80..ba58752 100644 --- a/arch/frv/mb93090-mb00/pci-irq.c +++ b/arch/frv/mb93090-mb00/pci-irq.c
@@ -15,7 +15,6 @@ #include <asm/io.h> #include <asm/smp.h> -#include <asm/irq-routing.h> #include "pci-frv.h"
diff --git a/arch/frv/mm/init.c b/arch/frv/mm/init.c index b5b4286..3f3a0ed 100644 --- a/arch/frv/mm/init.c +++ b/arch/frv/mm/init.c
@@ -98,7 +98,7 @@ */ void __init paging_init(void) { - unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0}; + unsigned long zones_size[MAX_NR_ZONES] = {0, }; /* allocate some pages for kernel housekeeping tasks */ empty_bad_page_table = (unsigned long) alloc_bootmem_pages(PAGE_SIZE);
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c index d3d40bd..e4f4199 100644 --- a/arch/h8300/mm/init.c +++ b/arch/h8300/mm/init.c
@@ -138,7 +138,7 @@ #endif { - unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0}; + unsigned long zones_size[MAX_NR_ZONES] = {0, }; zones_size[ZONE_DMA] = 0 >> PAGE_SHIFT; zones_size[ZONE_NORMAL] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT;
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index b2751ea..3fd2f25 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig
@@ -166,7 +166,6 @@ config X86_GENERICARCH bool "Generic architecture (Summit, bigsmp, ES7000, default)" - depends on SMP help This option compiles in the Summit, bigsmp, ES7000, default subarchitectures. It is intended for a generic binary kernel. @@ -263,7 +262,7 @@ config X86_UP_APIC bool "Local APIC support on uniprocessors" - depends on !SMP && !(X86_VISWS || X86_VOYAGER) + depends on !SMP && !(X86_VISWS || X86_VOYAGER || X86_GENERICARCH) help A local APIC (Advanced Programmable Interrupt Controller) is an integrated interrupt controller in the CPU. If you have a single-CPU @@ -288,12 +287,12 @@ config X86_LOCAL_APIC bool - depends on X86_UP_APIC || ((X86_VISWS || SMP) && !X86_VOYAGER) + depends on X86_UP_APIC || ((X86_VISWS || SMP) && !X86_VOYAGER) || X86_GENERICARCH default y config X86_IO_APIC bool - depends on X86_UP_IOAPIC || (SMP && !(X86_VISWS || X86_VOYAGER)) + depends on X86_UP_IOAPIC || (SMP && !(X86_VISWS || X86_VOYAGER)) || X86_GENERICARCH default y config X86_VISWS_APIC @@ -402,6 +401,7 @@ config MICROCODE tristate "/dev/cpu/microcode - Intel IA32 CPU microcode support" + select FW_LOADER ---help--- If you say Y here and also to "/dev file system support" in the 'File systems' section, you will be able to update the microcode on @@ -417,6 +417,11 @@ To compile this driver as a module, choose M here: the module will be called microcode. +config MICROCODE_OLD_INTERFACE + bool + depends on MICROCODE + default y + config X86_MSR tristate "/dev/cpu/*/msr - Model-specific register support" help @@ -494,7 +499,7 @@ endchoice choice - depends on EXPERIMENTAL && !X86_PAE + depends on EXPERIMENTAL prompt "Memory split" if EMBEDDED default VMSPLIT_3G help @@ -516,6 +521,7 @@ config VMSPLIT_3G bool "3G/1G user/kernel split" config VMSPLIT_3G_OPT + depends on !HIGHMEM bool "3G/1G user/kernel split (for full 1G low memory)" config VMSPLIT_2G bool "2G/2G user/kernel split" @@ -598,12 +604,10 @@ def_bool y depends on ARCH_SPARSEMEM_ENABLE -source "mm/Kconfig" +config ARCH_POPULATES_NODE_MAP + def_bool y -config HAVE_ARCH_EARLY_PFN_TO_NID - bool - default y - depends on NUMA +source "mm/Kconfig" config HIGHPTE bool "Allocate 3rd-level pagetables from highmem" @@ -740,8 +744,7 @@ source kernel/Kconfig.hz config KEXEC - bool "kexec system call (EXPERIMENTAL)" - depends on EXPERIMENTAL + bool "kexec system call" help kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot @@ -762,6 +765,13 @@ depends on HIGHMEM help Generate crash dump after being started by kexec. + This should be normally only set in special crash dump kernels + which are loaded in the main kernel with kexec-tools into + a specially reserved region and then later executed after + a crash by kdump/kexec. The crash dump kernel must be compiled + to a memory address not used by the main kernel or BIOS using + PHYSICAL_START. + For more details see Documentation/kdump/kdump.txt config PHYSICAL_START hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP) @@ -794,6 +804,7 @@ config COMPAT_VDSO bool "Compat VDSO support" default y + depends on !PARAVIRT help Map the VDSO to the predictable old-style address too. ---help---
diff --git a/arch/i386/Makefile b/arch/i386/Makefile index 3e4adb1..7cc0b18 100644 --- a/arch/i386/Makefile +++ b/arch/i386/Makefile
@@ -46,6 +46,14 @@ # a lot more stack due to the lack of sharing of stacklots: CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;) +# do binutils support CFI? +cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) +AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) + +# is .cfi_signal_frame supported too? +cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) +AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) + CFLAGS += $(cflags-y) # Default subarch .c files
diff --git a/arch/i386/boot/edd.S b/arch/i386/boot/edd.S index 4b84ea2..3432136 100644 --- a/arch/i386/boot/edd.S +++ b/arch/i386/boot/edd.S
@@ -15,42 +15,95 @@ #include <asm/setup.h> #if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) + +# It is assumed that %ds == INITSEG here + movb $0, (EDD_MBR_SIG_NR_BUF) movb $0, (EDDNR) -# Check the command line for two options: +# Check the command line for options: # edd=of disables EDD completely (edd=off) # edd=sk skips the MBR test (edd=skipmbr) +# edd=on re-enables EDD (edd=on) + pushl %esi - cmpl $0, %cs:cmd_line_ptr - jz done_cl + movw $edd_mbr_sig_start, %di # Default to edd=on + movl %cs:(cmd_line_ptr), %esi -# ds:esi has the pointer to the command line now - movl $(COMMAND_LINE_SIZE-7), %ecx -# loop through kernel command line one byte at a time -cl_loop: - cmpl $EDD_CL_EQUALS, (%si) + andl %esi, %esi + jz old_cl # Old boot protocol? + +# Convert to a real-mode pointer in fs:si + movl %esi, %eax + shrl $4, %eax + movw %ax, %fs + andw $0xf, %si + jmp have_cl_pointer + +# Old-style boot protocol? +old_cl: + push %ds # aka INITSEG + pop %fs + + cmpw $0xa33f, (0x20) + jne done_cl # No command line at all? + movw (0x22), %si # Pointer relative to INITSEG + +# fs:si has the pointer to the command line now +have_cl_pointer: + +# Loop through kernel command line one byte at a time. Just in +# case the loader is buggy and failed to null-terminate the command line +# terminate if we get close enough to the end of the segment that we +# cannot fit "edd=XX"... +cl_atspace: + cmpw $-5, %si # Watch for segment wraparound + jae done_cl + movl %fs:(%si), %eax + andb %al, %al # End of line? + jz done_cl + cmpl $EDD_CL_EQUALS, %eax jz found_edd_equals - incl %esi - loop cl_loop - jmp done_cl + cmpb $0x20, %al # <= space consider whitespace + ja cl_skipword + incw %si + jmp cl_atspace + +cl_skipword: + cmpw $-5, %si # Watch for segment wraparound + jae done_cl + movb %fs:(%si), %al # End of string? + andb %al, %al + jz done_cl + cmpb $0x20, %al + jbe cl_atspace + incw %si + jmp cl_skipword + found_edd_equals: # only looking at first two characters after equals - addl $4, %esi - cmpw $EDD_CL_OFF, (%si) # edd=of - jz do_edd_off - cmpw $EDD_CL_SKIP, (%si) # edd=sk - jz do_edd_skipmbr - jmp done_cl +# late overrides early on the command line, so keep going after finding something + movw %fs:4(%si), %ax + cmpw $EDD_CL_OFF, %ax # edd=of + je do_edd_off + cmpw $EDD_CL_SKIP, %ax # edd=sk + je do_edd_skipmbr + cmpw $EDD_CL_ON, %ax # edd=on + je do_edd_on + jmp cl_skipword do_edd_skipmbr: - popl %esi - jmp edd_start + movw $edd_start, %di + jmp cl_skipword do_edd_off: - popl %esi - jmp edd_done + movw $edd_done, %di + jmp cl_skipword +do_edd_on: + movw $edd_mbr_sig_start, %di + jmp cl_skipword + done_cl: popl %esi - + jmpw *%di # Read the first sector of each BIOS disk device and store the 4-byte signature edd_mbr_sig_start:
diff --git a/arch/i386/boot/setup.S b/arch/i386/boot/setup.S index d2b684c..3aec4538 100644 --- a/arch/i386/boot/setup.S +++ b/arch/i386/boot/setup.S
@@ -494,12 +494,12 @@ movw %cs, %ax # aka SETUPSEG subw $DELTA_INITSEG, %ax # aka INITSEG movw %ax, %ds - movw $0, (0x1ff) # default is no pointing device + movb $0, (0x1ff) # default is no pointing device int $0x11 # int 0x11: equipment list testb $0x04, %al # check if mouse installed jz no_psmouse - movw $0xAA, (0x1ff) # device present + movb $0xAA, (0x1ff) # device present no_psmouse: #if defined(CONFIG_X86_SPEEDSTEP_SMI) || defined(CONFIG_X86_SPEEDSTEP_SMI_MODULE)
diff --git a/arch/i386/defconfig b/arch/i386/defconfig index 89ebb7a..1a29bfa 100644 --- a/arch/i386/defconfig +++ b/arch/i386/defconfig
@@ -1,41 +1,51 @@ # # Automatically generated make config: don't edit +# Linux kernel version: 2.6.18-git5 +# Tue Sep 26 09:30:47 2006 # CONFIG_X86_32=y +CONFIG_GENERIC_TIME=y +CONFIG_LOCKDEP_SUPPORT=y +CONFIG_STACKTRACE_SUPPORT=y CONFIG_SEMAPHORE_SLEEPERS=y CONFIG_X86=y CONFIG_MMU=y CONFIG_GENERIC_ISA_DMA=y CONFIG_GENERIC_IOMAP=y +CONFIG_GENERIC_HWEIGHT=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_DMI=y +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # # Code maturity level options # CONFIG_EXPERIMENTAL=y -CONFIG_BROKEN_ON_SMP=y +CONFIG_LOCK_KERNEL=y CONFIG_INIT_ENV_ARG_LIMIT=32 # # General setup # CONFIG_LOCALVERSION="" -# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_LOCALVERSION_AUTO=y CONFIG_SWAP=y CONFIG_SYSVIPC=y -# CONFIG_POSIX_MQUEUE is not set +CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set -CONFIG_SYSCTL=y +# CONFIG_TASKSTATS is not set # CONFIG_AUDIT is not set CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y +# CONFIG_CPUSETS is not set +# CONFIG_RELAY is not set CONFIG_INITRAMFS_SOURCE="" -CONFIG_UID16=y -CONFIG_VM86=y CONFIG_CC_OPTIMIZE_FOR_SIZE=y # CONFIG_EMBEDDED is not set +CONFIG_UID16=y +CONFIG_SYSCTL=y CONFIG_KALLSYMS=y +CONFIG_KALLSYMS_ALL=y # CONFIG_KALLSYMS_EXTRA_PASS is not set CONFIG_HOTPLUG=y CONFIG_PRINTK=y @@ -45,11 +55,9 @@ CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_SHMEM=y -CONFIG_CC_ALIGN_FUNCTIONS=0 -CONFIG_CC_ALIGN_LABELS=0 -CONFIG_CC_ALIGN_LOOPS=0 -CONFIG_CC_ALIGN_JUMPS=0 CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 # CONFIG_SLOB is not set @@ -60,41 +68,45 @@ CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y -CONFIG_OBSOLETE_MODPARM=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set # CONFIG_KMOD is not set +CONFIG_STOP_MACHINE=y # # Block layer # -# CONFIG_LBD is not set +CONFIG_LBD=y +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set # # IO Schedulers # CONFIG_IOSCHED_NOOP=y -# CONFIG_IOSCHED_AS is not set -# CONFIG_IOSCHED_DEADLINE is not set +CONFIG_IOSCHED_AS=y +CONFIG_IOSCHED_DEADLINE=y CONFIG_IOSCHED_CFQ=y -# CONFIG_DEFAULT_AS is not set +CONFIG_DEFAULT_AS=y # CONFIG_DEFAULT_DEADLINE is not set -CONFIG_DEFAULT_CFQ=y +# CONFIG_DEFAULT_CFQ is not set # CONFIG_DEFAULT_NOOP is not set -CONFIG_DEFAULT_IOSCHED="cfq" +CONFIG_DEFAULT_IOSCHED="anticipatory" # # Processor type and features # -CONFIG_X86_PC=y +CONFIG_SMP=y +# CONFIG_X86_PC is not set # CONFIG_X86_ELAN is not set # CONFIG_X86_VOYAGER is not set # CONFIG_X86_NUMAQ is not set # CONFIG_X86_SUMMIT is not set # CONFIG_X86_BIGSMP is not set # CONFIG_X86_VISWS is not set -# CONFIG_X86_GENERICARCH is not set +CONFIG_X86_GENERICARCH=y # CONFIG_X86_ES7000 is not set +CONFIG_X86_CYCLONE_TIMER=y # CONFIG_M386 is not set # CONFIG_M486 is not set # CONFIG_M586 is not set @@ -102,11 +114,11 @@ # CONFIG_M586MMX is not set # CONFIG_M686 is not set # CONFIG_MPENTIUMII is not set -# CONFIG_MPENTIUMIII is not set +CONFIG_MPENTIUMIII=y # CONFIG_MPENTIUMM is not set # CONFIG_MPENTIUM4 is not set # CONFIG_MK6 is not set -CONFIG_MK7=y +# CONFIG_MK7 is not set # CONFIG_MK8 is not set # CONFIG_MCRUSOE is not set # CONFIG_MEFFICEON is not set @@ -117,10 +129,10 @@ # CONFIG_MGEODE_LX is not set # CONFIG_MCYRIXIII is not set # CONFIG_MVIAC3_2 is not set -# CONFIG_X86_GENERIC is not set +CONFIG_X86_GENERIC=y CONFIG_X86_CMPXCHG=y CONFIG_X86_XADD=y -CONFIG_X86_L1_CACHE_SHIFT=6 +CONFIG_X86_L1_CACHE_SHIFT=7 CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_GENERIC_CALIBRATE_DELAY=y CONFIG_X86_WP_WORKS_OK=y @@ -131,26 +143,28 @@ CONFIG_X86_GOOD_APIC=y CONFIG_X86_INTEL_USERCOPY=y CONFIG_X86_USE_PPRO_CHECKSUM=y -CONFIG_X86_USE_3DNOW=y CONFIG_X86_TSC=y -# CONFIG_HPET_TIMER is not set -# CONFIG_SMP is not set -CONFIG_PREEMPT_NONE=y -# CONFIG_PREEMPT_VOLUNTARY is not set +CONFIG_HPET_TIMER=y +CONFIG_HPET_EMULATE_RTC=y +CONFIG_NR_CPUS=32 +CONFIG_SCHED_SMT=y +CONFIG_SCHED_MC=y +# CONFIG_PREEMPT_NONE is not set +CONFIG_PREEMPT_VOLUNTARY=y # CONFIG_PREEMPT is not set -CONFIG_X86_UP_APIC=y -CONFIG_X86_UP_IOAPIC=y +CONFIG_PREEMPT_BKL=y CONFIG_X86_LOCAL_APIC=y CONFIG_X86_IO_APIC=y CONFIG_X86_MCE=y CONFIG_X86_MCE_NONFATAL=y -# CONFIG_X86_MCE_P4THERMAL is not set +CONFIG_X86_MCE_P4THERMAL=y +CONFIG_VM86=y # CONFIG_TOSHIBA is not set # CONFIG_I8K is not set # CONFIG_X86_REBOOTFIXUPS is not set -# CONFIG_MICROCODE is not set -# CONFIG_X86_MSR is not set -# CONFIG_X86_CPUID is not set +CONFIG_MICROCODE=y +CONFIG_X86_MSR=y +CONFIG_X86_CPUID=y # # Firmware Drivers @@ -158,68 +172,67 @@ # CONFIG_EDD is not set # CONFIG_DELL_RBU is not set # CONFIG_DCDBAS is not set -CONFIG_NOHIGHMEM=y -# CONFIG_HIGHMEM4G is not set +# CONFIG_NOHIGHMEM is not set +CONFIG_HIGHMEM4G=y # CONFIG_HIGHMEM64G is not set -CONFIG_VMSPLIT_3G=y -# CONFIG_VMSPLIT_3G_OPT is not set -# CONFIG_VMSPLIT_2G is not set -# CONFIG_VMSPLIT_1G is not set CONFIG_PAGE_OFFSET=0xC0000000 -CONFIG_ARCH_FLATMEM_ENABLE=y -CONFIG_ARCH_SPARSEMEM_ENABLE=y -CONFIG_ARCH_SELECT_MEMORY_MODEL=y +CONFIG_HIGHMEM=y CONFIG_SELECT_MEMORY_MODEL=y CONFIG_FLATMEM_MANUAL=y # CONFIG_DISCONTIGMEM_MANUAL is not set # CONFIG_SPARSEMEM_MANUAL is not set CONFIG_FLATMEM=y CONFIG_FLAT_NODE_MEM_MAP=y -CONFIG_SPARSEMEM_STATIC=y +# CONFIG_SPARSEMEM_STATIC is not set CONFIG_SPLIT_PTLOCK_CPUS=4 +CONFIG_RESOURCES_64BIT=y +# CONFIG_HIGHPTE is not set # CONFIG_MATH_EMULATION is not set CONFIG_MTRR=y # CONFIG_EFI is not set +# CONFIG_IRQBALANCE is not set CONFIG_REGPARM=y -# CONFIG_SECCOMP is not set -CONFIG_HZ_100=y -# CONFIG_HZ_250 is not set +CONFIG_SECCOMP=y +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y # CONFIG_HZ_1000 is not set -CONFIG_HZ=100 +CONFIG_HZ=250 # CONFIG_KEXEC is not set +# CONFIG_CRASH_DUMP is not set CONFIG_PHYSICAL_START=0x100000 -CONFIG_DOUBLEFAULT=y +# CONFIG_HOTPLUG_CPU is not set +CONFIG_COMPAT_VDSO=y +CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y # # Power management options (ACPI, APM) # CONFIG_PM=y -# CONFIG_PM_LEGACY is not set +CONFIG_PM_LEGACY=y # CONFIG_PM_DEBUG is not set -CONFIG_SOFTWARE_SUSPEND=y -CONFIG_PM_STD_PARTITION="" # # ACPI (Advanced Configuration and Power Interface) Support # CONFIG_ACPI=y -# CONFIG_ACPI_SLEEP is not set -# CONFIG_ACPI_AC is not set -# CONFIG_ACPI_BATTERY is not set -# CONFIG_ACPI_BUTTON is not set +CONFIG_ACPI_AC=y +CONFIG_ACPI_BATTERY=y +CONFIG_ACPI_BUTTON=y # CONFIG_ACPI_VIDEO is not set # CONFIG_ACPI_HOTKEY is not set -# CONFIG_ACPI_FAN is not set -# CONFIG_ACPI_PROCESSOR is not set +CONFIG_ACPI_FAN=y +# CONFIG_ACPI_DOCK is not set +CONFIG_ACPI_PROCESSOR=y +CONFIG_ACPI_THERMAL=y # CONFIG_ACPI_ASUS is not set # CONFIG_ACPI_IBM is not set # CONFIG_ACPI_TOSHIBA is not set -CONFIG_ACPI_BLACKLIST_YEAR=0 -# CONFIG_ACPI_DEBUG is not set +CONFIG_ACPI_BLACKLIST_YEAR=2001 +CONFIG_ACPI_DEBUG=y CONFIG_ACPI_EC=y CONFIG_ACPI_POWER=y CONFIG_ACPI_SYSTEM=y -# CONFIG_X86_PM_TIMER is not set +CONFIG_X86_PM_TIMER=y # CONFIG_ACPI_CONTAINER is not set # @@ -230,7 +243,41 @@ # # CPU Frequency scaling # -# CONFIG_CPU_FREQ is not set +CONFIG_CPU_FREQ=y +CONFIG_CPU_FREQ_TABLE=y +CONFIG_CPU_FREQ_DEBUG=y +CONFIG_CPU_FREQ_STAT=y +# CONFIG_CPU_FREQ_STAT_DETAILS is not set +CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y +# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set +CONFIG_CPU_FREQ_GOV_PERFORMANCE=y +# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set +CONFIG_CPU_FREQ_GOV_USERSPACE=y +CONFIG_CPU_FREQ_GOV_ONDEMAND=y +# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set + +# +# CPUFreq processor drivers +# +CONFIG_X86_ACPI_CPUFREQ=y +# CONFIG_X86_POWERNOW_K6 is not set +# CONFIG_X86_POWERNOW_K7 is not set +CONFIG_X86_POWERNOW_K8=y +CONFIG_X86_POWERNOW_K8_ACPI=y +# CONFIG_X86_GX_SUSPMOD is not set +# CONFIG_X86_SPEEDSTEP_CENTRINO is not set +# CONFIG_X86_SPEEDSTEP_ICH is not set +# CONFIG_X86_SPEEDSTEP_SMI is not set +# CONFIG_X86_P4_CLOCKMOD is not set +# CONFIG_X86_CPUFREQ_NFORCE2 is not set +# CONFIG_X86_LONGRUN is not set +# CONFIG_X86_LONGHAUL is not set + +# +# shared options +# +CONFIG_X86_ACPI_CPUFREQ_PROC_INTF=y +# CONFIG_X86_SPEEDSTEP_LIB is not set # # Bus options (PCI, PCMCIA, EISA, MCA, ISA) @@ -244,12 +291,13 @@ CONFIG_PCI_DIRECT=y CONFIG_PCI_MMCONFIG=y # CONFIG_PCIEPORTBUS is not set -# CONFIG_PCI_MSI is not set -# CONFIG_PCI_LEGACY_PROC is not set +CONFIG_PCI_MSI=y +# CONFIG_PCI_DEBUG is not set CONFIG_ISA_DMA_API=y # CONFIG_ISA is not set # CONFIG_MCA is not set # CONFIG_SCx200 is not set +CONFIG_K8_NB=y # # PCCARD (PCMCIA/CardBus) support @@ -278,93 +326,54 @@ # # CONFIG_NETDEBUG is not set CONFIG_PACKET=y -CONFIG_PACKET_MMAP=y +# CONFIG_PACKET_MMAP is not set CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +# CONFIG_XFRM_SUB_POLICY is not set # CONFIG_NET_KEY is not set CONFIG_INET=y -# CONFIG_IP_MULTICAST is not set +CONFIG_IP_MULTICAST=y # CONFIG_IP_ADVANCED_ROUTER is not set CONFIG_IP_FIB_HASH=y -# CONFIG_IP_PNP is not set +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set +# CONFIG_IP_MROUTE is not set # CONFIG_ARPD is not set # CONFIG_SYN_COOKIES is not set # CONFIG_INET_AH is not set # CONFIG_INET_ESP is not set # CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set # CONFIG_INET_TUNNEL is not set -# CONFIG_INET_DIAG is not set +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set -CONFIG_TCP_CONG_BIC=y - -# -# IP: Virtual Server Configuration -# -# CONFIG_IP_VS is not set -# CONFIG_IPV6 is not set -CONFIG_NETFILTER=y -# CONFIG_NETFILTER_DEBUG is not set - -# -# Core Netfilter Configuration -# -# CONFIG_NETFILTER_NETLINK is not set -CONFIG_NETFILTER_XTABLES=y -# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set -# CONFIG_NETFILTER_XT_TARGET_MARK is not set -# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set -# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set -# CONFIG_NETFILTER_XT_MATCH_CONNTRACK is not set -# CONFIG_NETFILTER_XT_MATCH_DCCP is not set -# CONFIG_NETFILTER_XT_MATCH_HELPER is not set -# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set -CONFIG_NETFILTER_XT_MATCH_LIMIT=y -CONFIG_NETFILTER_XT_MATCH_MAC=y -# CONFIG_NETFILTER_XT_MATCH_MARK is not set -# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set -# CONFIG_NETFILTER_XT_MATCH_REALM is not set -# CONFIG_NETFILTER_XT_MATCH_SCTP is not set -CONFIG_NETFILTER_XT_MATCH_STATE=y -# CONFIG_NETFILTER_XT_MATCH_STRING is not set -# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set - -# -# IP: Netfilter Configuration -# -CONFIG_IP_NF_CONNTRACK=y -# CONFIG_IP_NF_CT_ACCT is not set -# CONFIG_IP_NF_CONNTRACK_MARK is not set -# CONFIG_IP_NF_CONNTRACK_EVENTS is not set -# CONFIG_IP_NF_CT_PROTO_SCTP is not set -CONFIG_IP_NF_FTP=y -# CONFIG_IP_NF_IRC is not set -# CONFIG_IP_NF_NETBIOS_NS is not set -# CONFIG_IP_NF_TFTP is not set -# CONFIG_IP_NF_AMANDA is not set -# CONFIG_IP_NF_PPTP is not set -# CONFIG_IP_NF_QUEUE is not set -CONFIG_IP_NF_IPTABLES=y -# CONFIG_IP_NF_MATCH_IPRANGE is not set -# CONFIG_IP_NF_MATCH_MULTIPORT is not set -# CONFIG_IP_NF_MATCH_TOS is not set -# CONFIG_IP_NF_MATCH_RECENT is not set -# CONFIG_IP_NF_MATCH_ECN is not set -# CONFIG_IP_NF_MATCH_DSCP is not set -# CONFIG_IP_NF_MATCH_AH_ESP is not set -# CONFIG_IP_NF_MATCH_TTL is not set -# CONFIG_IP_NF_MATCH_OWNER is not set -# CONFIG_IP_NF_MATCH_ADDRTYPE is not set -# CONFIG_IP_NF_MATCH_HASHLIMIT is not set -CONFIG_IP_NF_FILTER=y -# CONFIG_IP_NF_TARGET_REJECT is not set -CONFIG_IP_NF_TARGET_LOG=y -# CONFIG_IP_NF_TARGET_ULOG is not set -# CONFIG_IP_NF_TARGET_TCPMSS is not set -# CONFIG_IP_NF_NAT is not set -# CONFIG_IP_NF_MANGLE is not set -# CONFIG_IP_NF_RAW is not set -# CONFIG_IP_NF_ARPTABLES is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +CONFIG_IPV6=y +# CONFIG_IPV6_PRIVACY is not set +# CONFIG_IPV6_ROUTER_PREF is not set +# CONFIG_INET6_AH is not set +# CONFIG_INET6_ESP is not set +# CONFIG_INET6_IPCOMP is not set +# CONFIG_IPV6_MIP6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +CONFIG_INET6_XFRM_MODE_TRANSPORT=y +CONFIG_INET6_XFRM_MODE_TUNNEL=y +# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set +# CONFIG_IPV6_TUNNEL is not set +# CONFIG_IPV6_SUBTREES is not set +# CONFIG_IPV6_MULTIPLE_TABLES is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set # # DCCP Configuration (EXPERIMENTAL) @@ -389,7 +398,6 @@ # CONFIG_ATALK is not set # CONFIG_X25 is not set # CONFIG_LAPB is not set -# CONFIG_NET_DIVERT is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set @@ -402,6 +410,7 @@ # Network testing # # CONFIG_NET_PKTGEN is not set +# CONFIG_NET_TCPPROBE is not set # CONFIG_HAMRADIO is not set # CONFIG_IRDA is not set # CONFIG_BT is not set @@ -416,7 +425,9 @@ # CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_FW_LOADER is not set +CONFIG_FW_LOADER=y +# CONFIG_DEBUG_DRIVER is not set +# CONFIG_SYS_HYPERVISOR is not set # # Connector - unified userspace <-> kernelspace linker @@ -431,13 +442,7 @@ # # Parallel port support # -CONFIG_PARPORT=y -CONFIG_PARPORT_PC=y -# CONFIG_PARPORT_SERIAL is not set -# CONFIG_PARPORT_PC_FIFO is not set -# CONFIG_PARPORT_PC_SUPERIO is not set -# CONFIG_PARPORT_GSC is not set -CONFIG_PARPORT_1284=y +# CONFIG_PARPORT is not set # # Plug and Play support @@ -447,8 +452,7 @@ # # Block devices # -# CONFIG_BLK_DEV_FD is not set -# CONFIG_PARIDE is not set +CONFIG_BLK_DEV_FD=y # CONFIG_BLK_CPQ_DA is not set # CONFIG_BLK_CPQ_CISS_DA is not set # CONFIG_BLK_DEV_DAC960 is not set @@ -459,8 +463,11 @@ # CONFIG_BLK_DEV_NBD is not set # CONFIG_BLK_DEV_SX8 is not set # CONFIG_BLK_DEV_UB is not set -# CONFIG_BLK_DEV_RAM is not set +CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 +CONFIG_BLK_DEV_INITRD=y # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set @@ -476,7 +483,7 @@ # CONFIG_BLK_DEV_IDE_SATA is not set # CONFIG_BLK_DEV_HD_IDE is not set CONFIG_BLK_DEV_IDEDISK=y -# CONFIG_IDEDISK_MULTI_MODE is not set +CONFIG_IDEDISK_MULTI_MODE=y CONFIG_BLK_DEV_IDECD=y # CONFIG_BLK_DEV_IDETAPE is not set # CONFIG_BLK_DEV_IDEFLOPPY is not set @@ -486,10 +493,10 @@ # # IDE chipset support/bugfixes # -# CONFIG_IDE_GENERIC is not set +CONFIG_IDE_GENERIC=y # CONFIG_BLK_DEV_CMD640 is not set CONFIG_BLK_DEV_IDEPCI=y -CONFIG_IDEPCI_SHARE_IRQ=y +# CONFIG_IDEPCI_SHARE_IRQ is not set # CONFIG_BLK_DEV_OFFBOARD is not set # CONFIG_BLK_DEV_GENERIC is not set # CONFIG_BLK_DEV_OPTI621 is not set @@ -500,7 +507,7 @@ # CONFIG_IDEDMA_ONLYDISK is not set # CONFIG_BLK_DEV_AEC62XX is not set # CONFIG_BLK_DEV_ALI15X3 is not set -# CONFIG_BLK_DEV_AMD74XX is not set +CONFIG_BLK_DEV_AMD74XX=y # CONFIG_BLK_DEV_ATIIXP is not set # CONFIG_BLK_DEV_CMD64X is not set # CONFIG_BLK_DEV_TRIFLEX is not set @@ -511,7 +518,7 @@ # CONFIG_BLK_DEV_HPT34X is not set # CONFIG_BLK_DEV_HPT366 is not set # CONFIG_BLK_DEV_SC1200 is not set -# CONFIG_BLK_DEV_PIIX is not set +CONFIG_BLK_DEV_PIIX=y # CONFIG_BLK_DEV_IT821X is not set # CONFIG_BLK_DEV_NS87415 is not set # CONFIG_BLK_DEV_PDC202XX_OLD is not set @@ -521,7 +528,7 @@ # CONFIG_BLK_DEV_SIS5513 is not set # CONFIG_BLK_DEV_SLC90E66 is not set # CONFIG_BLK_DEV_TRM290 is not set -CONFIG_BLK_DEV_VIA82CXXX=y +# CONFIG_BLK_DEV_VIA82CXXX is not set # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_IVB is not set @@ -533,6 +540,7 @@ # # CONFIG_RAID_ATTRS is not set CONFIG_SCSI=y +CONFIG_SCSI_NETLINK=y # CONFIG_SCSI_PROC_FS is not set # @@ -541,8 +549,9 @@ CONFIG_BLK_DEV_SD=y # CONFIG_CHR_DEV_ST is not set # CONFIG_CHR_DEV_OSST is not set -# CONFIG_BLK_DEV_SR is not set -# CONFIG_CHR_DEV_SG is not set +CONFIG_BLK_DEV_SR=y +# CONFIG_BLK_DEV_SR_VENDOR is not set +CONFIG_CHR_DEV_SG=y # CONFIG_CHR_DEV_SCH is not set # @@ -553,29 +562,44 @@ # CONFIG_SCSI_LOGGING is not set # -# SCSI Transport Attributes +# SCSI Transports # -# CONFIG_SCSI_SPI_ATTRS is not set -# CONFIG_SCSI_FC_ATTRS is not set +CONFIG_SCSI_SPI_ATTRS=y +CONFIG_SCSI_FC_ATTRS=y # CONFIG_SCSI_ISCSI_ATTRS is not set # CONFIG_SCSI_SAS_ATTRS is not set +# CONFIG_SCSI_SAS_LIBSAS is not set # # SCSI low-level drivers # # CONFIG_ISCSI_TCP is not set -# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +CONFIG_BLK_DEV_3W_XXXX_RAID=y # CONFIG_SCSI_3W_9XXX is not set # CONFIG_SCSI_ACARD is not set # CONFIG_SCSI_AACRAID is not set -# CONFIG_SCSI_AIC7XXX is not set +CONFIG_SCSI_AIC7XXX=y +CONFIG_AIC7XXX_CMDS_PER_DEVICE=32 +CONFIG_AIC7XXX_RESET_DELAY_MS=5000 +CONFIG_AIC7XXX_DEBUG_ENABLE=y +CONFIG_AIC7XXX_DEBUG_MASK=0 +CONFIG_AIC7XXX_REG_PRETTY_PRINT=y # CONFIG_SCSI_AIC7XXX_OLD is not set -# CONFIG_SCSI_AIC79XX is not set +CONFIG_SCSI_AIC79XX=y +CONFIG_AIC79XX_CMDS_PER_DEVICE=32 +CONFIG_AIC79XX_RESET_DELAY_MS=4000 +# CONFIG_AIC79XX_ENABLE_RD_STRM is not set +# CONFIG_AIC79XX_DEBUG_ENABLE is not set +CONFIG_AIC79XX_DEBUG_MASK=0 +# CONFIG_AIC79XX_REG_PRETTY_PRINT is not set +# CONFIG_SCSI_AIC94XX is not set # CONFIG_SCSI_DPT_I2O is not set +# CONFIG_SCSI_ADVANSYS is not set +# CONFIG_SCSI_ARCMSR is not set # CONFIG_MEGARAID_NEWGEN is not set # CONFIG_MEGARAID_LEGACY is not set # CONFIG_MEGARAID_SAS is not set -# CONFIG_SCSI_SATA is not set +# CONFIG_SCSI_HPTIOP is not set # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_EATA is not set @@ -584,11 +608,9 @@ # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set -# CONFIG_SCSI_PPA is not set -# CONFIG_SCSI_IMM is not set +# CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set -# CONFIG_SCSI_QLOGIC_FC is not set # CONFIG_SCSI_QLOGIC_1280 is not set # CONFIG_SCSI_QLA_FC is not set # CONFIG_SCSI_LPFC is not set @@ -598,22 +620,114 @@ # CONFIG_SCSI_DEBUG is not set # +# Serial ATA (prod) and Parallel ATA (experimental) drivers +# +CONFIG_ATA=y +CONFIG_SATA_AHCI=y +CONFIG_SATA_SVW=y +CONFIG_ATA_PIIX=y +# CONFIG_SATA_MV is not set +CONFIG_SATA_NV=y +# CONFIG_PDC_ADMA is not set +# CONFIG_SATA_QSTOR is not set +# CONFIG_SATA_PROMISE is not set +# CONFIG_SATA_SX4 is not set +CONFIG_SATA_SIL=y +# CONFIG_SATA_SIL24 is not set +# CONFIG_SATA_SIS is not set +# CONFIG_SATA_ULI is not set +CONFIG_SATA_VIA=y +# CONFIG_SATA_VITESSE is not set +CONFIG_SATA_INTEL_COMBINED=y +# CONFIG_PATA_ALI is not set +# CONFIG_PATA_AMD is not set +# CONFIG_PATA_ARTOP is not set +# CONFIG_PATA_ATIIXP is not set +# CONFIG_PATA_CMD64X is not set +# CONFIG_PATA_CS5520 is not set +# CONFIG_PATA_CS5530 is not set +# CONFIG_PATA_CS5535 is not set +# CONFIG_PATA_CYPRESS is not set +# CONFIG_PATA_EFAR is not set +# CONFIG_ATA_GENERIC is not set +# CONFIG_PATA_HPT366 is not set +# CONFIG_PATA_HPT37X is not set +# CONFIG_PATA_HPT3X2N is not set +# CONFIG_PATA_HPT3X3 is not set +# CONFIG_PATA_IT821X is not set +# CONFIG_PATA_JMICRON is not set +# CONFIG_PATA_LEGACY is not set +# CONFIG_PATA_TRIFLEX is not set +# CONFIG_PATA_MPIIX is not set +# CONFIG_PATA_OLDPIIX is not set +# CONFIG_PATA_NETCELL is not set +# CONFIG_PATA_NS87410 is not set +# CONFIG_PATA_OPTI is not set +# CONFIG_PATA_OPTIDMA is not set +# CONFIG_PATA_PDC_OLD is not set +# CONFIG_PATA_QDI is not set +# CONFIG_PATA_RADISYS is not set +# CONFIG_PATA_RZ1000 is not set +# CONFIG_PATA_SC1200 is not set +# CONFIG_PATA_SERVERWORKS is not set +# CONFIG_PATA_PDC2027X is not set +# CONFIG_PATA_SIL680 is not set +# CONFIG_PATA_SIS is not set +# CONFIG_PATA_VIA is not set +# CONFIG_PATA_WINBOND is not set + +# # Multi-device support (RAID and LVM) # -# CONFIG_MD is not set +CONFIG_MD=y +# CONFIG_BLK_DEV_MD is not set +CONFIG_BLK_DEV_DM=y +# CONFIG_DM_CRYPT is not set +# CONFIG_DM_SNAPSHOT is not set +# CONFIG_DM_MIRROR is not set +# CONFIG_DM_ZERO is not set +# CONFIG_DM_MULTIPATH is not set # # Fusion MPT device support # -# CONFIG_FUSION is not set -# CONFIG_FUSION_SPI is not set +CONFIG_FUSION=y +CONFIG_FUSION_SPI=y # CONFIG_FUSION_FC is not set # CONFIG_FUSION_SAS is not set +CONFIG_FUSION_MAX_SGE=128 +# CONFIG_FUSION_CTL is not set # # IEEE 1394 (FireWire) support # -# CONFIG_IEEE1394 is not set +CONFIG_IEEE1394=y + +# +# Subsystem Options +# +# CONFIG_IEEE1394_VERBOSEDEBUG is not set +# CONFIG_IEEE1394_OUI_DB is not set +# CONFIG_IEEE1394_EXTRA_CONFIG_ROMS is not set +# CONFIG_IEEE1394_EXPORT_FULL_API is not set + +# +# Device Drivers +# + +# +# Texas Instruments PCILynx requires I2C +# +CONFIG_IEEE1394_OHCI1394=y + +# +# Protocol Drivers +# +# CONFIG_IEEE1394_VIDEO1394 is not set +# CONFIG_IEEE1394_SBP2 is not set +# CONFIG_IEEE1394_ETH1394 is not set +# CONFIG_IEEE1394_DV1394 is not set +CONFIG_IEEE1394_RAWIO=y # # I2O device support @@ -652,46 +766,63 @@ # # Tulip family network device support # -# CONFIG_NET_TULIP is not set +CONFIG_NET_TULIP=y +# CONFIG_DE2104X is not set +CONFIG_TULIP=y +# CONFIG_TULIP_MWI is not set +# CONFIG_TULIP_MMIO is not set +# CONFIG_TULIP_NAPI is not set +# CONFIG_DE4X5 is not set +# CONFIG_WINBOND_840 is not set +# CONFIG_DM9102 is not set +# CONFIG_ULI526X is not set # CONFIG_HP100 is not set CONFIG_NET_PCI=y # CONFIG_PCNET32 is not set # CONFIG_AMD8111_ETH is not set # CONFIG_ADAPTEC_STARFIRE is not set -# CONFIG_B44 is not set -# CONFIG_FORCEDETH is not set +CONFIG_B44=y +CONFIG_FORCEDETH=y +# CONFIG_FORCEDETH_NAPI is not set # CONFIG_DGRS is not set # CONFIG_EEPRO100 is not set CONFIG_E100=y # CONFIG_FEALNX is not set # CONFIG_NATSEMI is not set # CONFIG_NE2K_PCI is not set -# CONFIG_8139CP is not set -# CONFIG_8139TOO is not set +CONFIG_8139CP=y +CONFIG_8139TOO=y +# CONFIG_8139TOO_PIO is not set +# CONFIG_8139TOO_TUNE_TWISTER is not set +# CONFIG_8139TOO_8129 is not set +# CONFIG_8139_OLD_RX_RESET is not set # CONFIG_SIS900 is not set # CONFIG_EPIC100 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set # CONFIG_VIA_RHINE is not set -# CONFIG_NET_POCKET is not set # # Ethernet (1000 Mbit) # # CONFIG_ACENIC is not set # CONFIG_DL2K is not set -# CONFIG_E1000 is not set +CONFIG_E1000=y +# CONFIG_E1000_NAPI is not set +# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set # CONFIG_NS83820 is not set # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set -# CONFIG_R8169 is not set +CONFIG_R8169=y +# CONFIG_R8169_NAPI is not set # CONFIG_SIS190 is not set # CONFIG_SKGE is not set -# CONFIG_SKY2 is not set +CONFIG_SKY2=y # CONFIG_SK98LIN is not set # CONFIG_VIA_VELOCITY is not set -# CONFIG_TIGON3 is not set -# CONFIG_BNX2 is not set +CONFIG_TIGON3=y +CONFIG_BNX2=y +# CONFIG_QLA3XXX is not set # # Ethernet (10000 Mbit) @@ -699,6 +830,7 @@ # CONFIG_CHELSIO_T1 is not set # CONFIG_IXGB is not set # CONFIG_S2IO is not set +# CONFIG_MYRI10GE is not set # # Token Ring devices @@ -716,14 +848,15 @@ # CONFIG_WAN is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set -# CONFIG_PLIP is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set # CONFIG_NET_FC is not set # CONFIG_SHAPER is not set -# CONFIG_NETCONSOLE is not set -# CONFIG_NETPOLL is not set -# CONFIG_NET_POLL_CONTROLLER is not set +CONFIG_NETCONSOLE=y +CONFIG_NETPOLL=y +# CONFIG_NETPOLL_RX is not set +# CONFIG_NETPOLL_TRAP is not set +CONFIG_NET_POLL_CONTROLLER=y # # ISDN subsystem @@ -745,8 +878,8 @@ # CONFIG_INPUT_MOUSEDEV=y CONFIG_INPUT_MOUSEDEV_PSAUX=y -CONFIG_INPUT_MOUSEDEV_SCREEN_X=1280 -CONFIG_INPUT_MOUSEDEV_SCREEN_Y=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 # CONFIG_INPUT_JOYDEV is not set # CONFIG_INPUT_TSDEV is not set CONFIG_INPUT_EVDEV=y @@ -776,7 +909,6 @@ CONFIG_SERIO_I8042=y # CONFIG_SERIO_SERPORT is not set # CONFIG_SERIO_CT82C710 is not set -# CONFIG_SERIO_PARKBD is not set # CONFIG_SERIO_PCIPS2 is not set CONFIG_SERIO_LIBPS2=y # CONFIG_SERIO_RAW is not set @@ -788,14 +920,15 @@ CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y +# CONFIG_VT_HW_CONSOLE_BINDING is not set # CONFIG_SERIAL_NONSTANDARD is not set # # Serial drivers # CONFIG_SERIAL_8250=y -# CONFIG_SERIAL_8250_CONSOLE is not set -# CONFIG_SERIAL_8250_ACPI is not set +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_PCI=y CONFIG_SERIAL_8250_NR_UARTS=4 CONFIG_SERIAL_8250_RUNTIME_UARTS=4 # CONFIG_SERIAL_8250_EXTENDED is not set @@ -804,14 +937,11 @@ # Non-8250 serial port support # CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y # CONFIG_SERIAL_JSM is not set CONFIG_UNIX98_PTYS=y CONFIG_LEGACY_PTYS=y CONFIG_LEGACY_PTY_COUNT=256 -CONFIG_PRINTER=y -# CONFIG_LP_CONSOLE is not set -# CONFIG_PPDEV is not set -# CONFIG_TIPAR is not set # # IPMI @@ -822,8 +952,12 @@ # Watchdog Cards # # CONFIG_WATCHDOG is not set -# CONFIG_HW_RANDOM is not set -CONFIG_NVRAM=y +CONFIG_HW_RANDOM=y +CONFIG_HW_RANDOM_INTEL=y +CONFIG_HW_RANDOM_AMD=y +CONFIG_HW_RANDOM_GEODE=y +CONFIG_HW_RANDOM_VIA=y +# CONFIG_NVRAM is not set CONFIG_RTC=y # CONFIG_DTLK is not set # CONFIG_R3964 is not set @@ -833,31 +967,28 @@ # # Ftape, the floppy tape device driver # -# CONFIG_FTAPE is not set CONFIG_AGP=y # CONFIG_AGP_ALI is not set # CONFIG_AGP_ATI is not set # CONFIG_AGP_AMD is not set -# CONFIG_AGP_AMD64 is not set -# CONFIG_AGP_INTEL is not set +CONFIG_AGP_AMD64=y +CONFIG_AGP_INTEL=y # CONFIG_AGP_NVIDIA is not set # CONFIG_AGP_SIS is not set # CONFIG_AGP_SWORKS is not set -CONFIG_AGP_VIA=y +# CONFIG_AGP_VIA is not set # CONFIG_AGP_EFFICEON is not set -CONFIG_DRM=y -# CONFIG_DRM_TDFX is not set -# CONFIG_DRM_R128 is not set -CONFIG_DRM_RADEON=y -# CONFIG_DRM_MGA is not set -# CONFIG_DRM_SIS is not set -# CONFIG_DRM_VIA is not set -# CONFIG_DRM_SAVAGE is not set +# CONFIG_DRM is not set # CONFIG_MWAVE is not set +# CONFIG_PC8736x_GPIO is not set +# CONFIG_NSC_GPIO is not set # CONFIG_CS5535_GPIO is not set -# CONFIG_RAW_DRIVER is not set -# CONFIG_HPET is not set -# CONFIG_HANGCHECK_TIMER is not set +CONFIG_RAW_DRIVER=y +CONFIG_MAX_RAW_DEVS=256 +CONFIG_HPET=y +# CONFIG_HPET_RTC_IRQ is not set +CONFIG_HPET_MMAP=y +CONFIG_HANGCHECK_TIMER=y # # TPM devices @@ -868,59 +999,7 @@ # # I2C support # -CONFIG_I2C=y -CONFIG_I2C_CHARDEV=y - -# -# I2C Algorithms -# -CONFIG_I2C_ALGOBIT=y -# CONFIG_I2C_ALGOPCF is not set -# CONFIG_I2C_ALGOPCA is not set - -# -# I2C Hardware Bus support -# -# CONFIG_I2C_ALI1535 is not set -# CONFIG_I2C_ALI1563 is not set -# CONFIG_I2C_ALI15X3 is not set -# CONFIG_I2C_AMD756 is not set -# CONFIG_I2C_AMD8111 is not set -# CONFIG_I2C_I801 is not set -# CONFIG_I2C_I810 is not set -# CONFIG_I2C_PIIX4 is not set -CONFIG_I2C_ISA=y -# CONFIG_I2C_NFORCE2 is not set -# CONFIG_I2C_PARPORT is not set -# CONFIG_I2C_PARPORT_LIGHT is not set -# CONFIG_I2C_PROSAVAGE is not set -# CONFIG_I2C_SAVAGE4 is not set -# CONFIG_SCx200_ACB is not set -# CONFIG_I2C_SIS5595 is not set -# CONFIG_I2C_SIS630 is not set -# CONFIG_I2C_SIS96X is not set -# CONFIG_I2C_STUB is not set -# CONFIG_I2C_VIA is not set -CONFIG_I2C_VIAPRO=y -# CONFIG_I2C_VOODOO3 is not set -# CONFIG_I2C_PCA_ISA is not set - -# -# Miscellaneous I2C Chip support -# -# CONFIG_SENSORS_DS1337 is not set -# CONFIG_SENSORS_DS1374 is not set -# CONFIG_SENSORS_EEPROM is not set -# CONFIG_SENSORS_PCF8574 is not set -# CONFIG_SENSORS_PCA9539 is not set -# CONFIG_SENSORS_PCF8591 is not set -# CONFIG_SENSORS_RTC8564 is not set -# CONFIG_SENSORS_MAX6875 is not set -# CONFIG_RTC_X1205_I2C is not set -# CONFIG_I2C_DEBUG_CORE is not set -# CONFIG_I2C_DEBUG_ALGO is not set -# CONFIG_I2C_DEBUG_BUS is not set -# CONFIG_I2C_DEBUG_CHIP is not set +# CONFIG_I2C is not set # # SPI support @@ -931,51 +1010,12 @@ # # Dallas's 1-wire bus # -# CONFIG_W1 is not set # # Hardware Monitoring support # -CONFIG_HWMON=y -CONFIG_HWMON_VID=y -# CONFIG_SENSORS_ADM1021 is not set -# CONFIG_SENSORS_ADM1025 is not set -# CONFIG_SENSORS_ADM1026 is not set -# CONFIG_SENSORS_ADM1031 is not set -# CONFIG_SENSORS_ADM9240 is not set -# CONFIG_SENSORS_ASB100 is not set -# CONFIG_SENSORS_ATXP1 is not set -# CONFIG_SENSORS_DS1621 is not set -# CONFIG_SENSORS_F71805F is not set -# CONFIG_SENSORS_FSCHER is not set -# CONFIG_SENSORS_FSCPOS is not set -# CONFIG_SENSORS_GL518SM is not set -# CONFIG_SENSORS_GL520SM is not set -CONFIG_SENSORS_IT87=y -# CONFIG_SENSORS_LM63 is not set -# CONFIG_SENSORS_LM75 is not set -# CONFIG_SENSORS_LM77 is not set -# CONFIG_SENSORS_LM78 is not set -# CONFIG_SENSORS_LM80 is not set -# CONFIG_SENSORS_LM83 is not set -# CONFIG_SENSORS_LM85 is not set -# CONFIG_SENSORS_LM87 is not set -# CONFIG_SENSORS_LM90 is not set -# CONFIG_SENSORS_LM92 is not set -# CONFIG_SENSORS_MAX1619 is not set -# CONFIG_SENSORS_PC87360 is not set -# CONFIG_SENSORS_SIS5595 is not set -# CONFIG_SENSORS_SMSC47M1 is not set -# CONFIG_SENSORS_SMSC47B397 is not set -# CONFIG_SENSORS_VIA686A is not set -# CONFIG_SENSORS_VT8231 is not set -# CONFIG_SENSORS_W83781D is not set -# CONFIG_SENSORS_W83792D is not set -# CONFIG_SENSORS_W83L785TS is not set -# CONFIG_SENSORS_W83627HF is not set -# CONFIG_SENSORS_W83627EHF is not set -# CONFIG_SENSORS_HDAPS is not set -# CONFIG_HWMON_DEBUG_CHIP is not set +# CONFIG_HWMON is not set +# CONFIG_HWMON_VID is not set # # Misc devices @@ -983,117 +1023,31 @@ # CONFIG_IBM_ASM is not set # -# Multimedia Capabilities Port drivers -# - -# # Multimedia devices # -CONFIG_VIDEO_DEV=y - -# -# Video For Linux -# - -# -# Video Adapters -# -# CONFIG_VIDEO_ADV_DEBUG is not set -# CONFIG_VIDEO_BT848 is not set -# CONFIG_VIDEO_BWQCAM is not set -# CONFIG_VIDEO_CQCAM is not set -# CONFIG_VIDEO_W9966 is not set -# CONFIG_VIDEO_CPIA is not set -# CONFIG_VIDEO_SAA5246A is not set -# CONFIG_VIDEO_SAA5249 is not set -# CONFIG_TUNER_3036 is not set -# CONFIG_VIDEO_STRADIS is not set -# CONFIG_VIDEO_ZORAN is not set -CONFIG_VIDEO_SAA7134=y -# CONFIG_VIDEO_SAA7134_ALSA is not set -# CONFIG_VIDEO_MXB is not set -# CONFIG_VIDEO_DPC is not set -# CONFIG_VIDEO_HEXIUM_ORION is not set -# CONFIG_VIDEO_HEXIUM_GEMINI is not set -# CONFIG_VIDEO_CX88 is not set -# CONFIG_VIDEO_EM28XX is not set -# CONFIG_VIDEO_OVCAMCHIP is not set -# CONFIG_VIDEO_AUDIO_DECODER is not set -# CONFIG_VIDEO_DECODER is not set - -# -# Radio Adapters -# -# CONFIG_RADIO_GEMTEK_PCI is not set -# CONFIG_RADIO_MAXIRADIO is not set -# CONFIG_RADIO_MAESTRO is not set +# CONFIG_VIDEO_DEV is not set +CONFIG_VIDEO_V4L2=y # # Digital Video Broadcasting Devices # # CONFIG_DVB is not set -CONFIG_VIDEO_TUNER=y -CONFIG_VIDEO_BUF=y -CONFIG_VIDEO_IR=y +# CONFIG_USB_DABUSB is not set # # Graphics support # -CONFIG_FB=y -CONFIG_FB_CFB_FILLRECT=y -CONFIG_FB_CFB_COPYAREA=y -CONFIG_FB_CFB_IMAGEBLIT=y -# CONFIG_FB_MACMODES is not set -CONFIG_FB_MODE_HELPERS=y -# CONFIG_FB_TILEBLITTING is not set -# CONFIG_FB_CIRRUS is not set -# CONFIG_FB_PM2 is not set -# CONFIG_FB_CYBER2000 is not set -# CONFIG_FB_ARC is not set -# CONFIG_FB_ASILIANT is not set -# CONFIG_FB_IMSTT is not set -# CONFIG_FB_VGA16 is not set -# CONFIG_FB_VESA is not set -CONFIG_VIDEO_SELECT=y -# CONFIG_FB_HGA is not set -# CONFIG_FB_S1D13XXX is not set -# CONFIG_FB_NVIDIA is not set -# CONFIG_FB_RIVA is not set -# CONFIG_FB_I810 is not set -# CONFIG_FB_INTEL is not set -# CONFIG_FB_MATROX is not set -# CONFIG_FB_RADEON_OLD is not set -CONFIG_FB_RADEON=y -CONFIG_FB_RADEON_I2C=y -# CONFIG_FB_RADEON_DEBUG is not set -# CONFIG_FB_ATY128 is not set -# CONFIG_FB_ATY is not set -# CONFIG_FB_SAVAGE is not set -# CONFIG_FB_SIS is not set -# CONFIG_FB_NEOMAGIC is not set -# CONFIG_FB_KYRO is not set -# CONFIG_FB_3DFX is not set -# CONFIG_FB_VOODOO1 is not set -# CONFIG_FB_CYBLA is not set -# CONFIG_FB_TRIDENT is not set -# CONFIG_FB_GEODE is not set -# CONFIG_FB_VIRTUAL is not set +CONFIG_FIRMWARE_EDID=y +# CONFIG_FB is not set # # Console display driver support # CONFIG_VGA_CONSOLE=y +CONFIG_VGACON_SOFT_SCROLLBACK=y +CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=128 +CONFIG_VIDEO_SELECT=y CONFIG_DUMMY_CONSOLE=y -CONFIG_FRAMEBUFFER_CONSOLE=y -# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set -# CONFIG_FONTS is not set -CONFIG_FONT_8x8=y -CONFIG_FONT_8x16=y - -# -# Logo configuration -# -# CONFIG_LOGO is not set # CONFIG_BACKLIGHT_LCD_SUPPORT is not set # @@ -1104,97 +1058,30 @@ # # Advanced Linux Sound Architecture # -CONFIG_SND=y -CONFIG_SND_TIMER=y -CONFIG_SND_PCM=y -CONFIG_SND_RAWMIDI=y -CONFIG_SND_SEQUENCER=y -# CONFIG_SND_SEQ_DUMMY is not set -# CONFIG_SND_MIXER_OSS is not set -# CONFIG_SND_PCM_OSS is not set -# CONFIG_SND_SEQUENCER_OSS is not set -CONFIG_SND_RTCTIMER=y -CONFIG_SND_SEQ_RTCTIMER_DEFAULT=y -# CONFIG_SND_DYNAMIC_MINORS is not set -# CONFIG_SND_SUPPORT_OLD_API is not set -# CONFIG_SND_VERBOSE_PRINTK is not set -# CONFIG_SND_DEBUG is not set - -# -# Generic devices -# -CONFIG_SND_MPU401_UART=y -CONFIG_SND_AC97_CODEC=y -CONFIG_SND_AC97_BUS=y -# CONFIG_SND_DUMMY is not set -# CONFIG_SND_VIRMIDI is not set -# CONFIG_SND_MTPAV is not set -# CONFIG_SND_SERIAL_U16550 is not set -# CONFIG_SND_MPU401 is not set - -# -# PCI devices -# -# CONFIG_SND_AD1889 is not set -# CONFIG_SND_ALS4000 is not set -# CONFIG_SND_ALI5451 is not set -# CONFIG_SND_ATIIXP is not set -# CONFIG_SND_ATIIXP_MODEM is not set -# CONFIG_SND_AU8810 is not set -# CONFIG_SND_AU8820 is not set -# CONFIG_SND_AU8830 is not set -# CONFIG_SND_AZT3328 is not set -# CONFIG_SND_BT87X is not set -# CONFIG_SND_CA0106 is not set -# CONFIG_SND_CMIPCI is not set -# CONFIG_SND_CS4281 is not set -# CONFIG_SND_CS46XX is not set -# CONFIG_SND_CS5535AUDIO is not set -# CONFIG_SND_EMU10K1 is not set -# CONFIG_SND_EMU10K1X is not set -# CONFIG_SND_ENS1370 is not set -# CONFIG_SND_ENS1371 is not set -# CONFIG_SND_ES1938 is not set -# CONFIG_SND_ES1968 is not set -# CONFIG_SND_FM801 is not set -# CONFIG_SND_HDA_INTEL is not set -# CONFIG_SND_HDSP is not set -# CONFIG_SND_HDSPM is not set -# CONFIG_SND_ICE1712 is not set -# CONFIG_SND_ICE1724 is not set -# CONFIG_SND_INTEL8X0 is not set -# CONFIG_SND_INTEL8X0M is not set -# CONFIG_SND_KORG1212 is not set -# CONFIG_SND_MAESTRO3 is not set -# CONFIG_SND_MIXART is not set -# CONFIG_SND_NM256 is not set -# CONFIG_SND_PCXHR is not set -# CONFIG_SND_RME32 is not set -# CONFIG_SND_RME96 is not set -# CONFIG_SND_RME9652 is not set -# CONFIG_SND_SONICVIBES is not set -# CONFIG_SND_TRIDENT is not set -CONFIG_SND_VIA82XX=y -# CONFIG_SND_VIA82XX_MODEM is not set -# CONFIG_SND_VX222 is not set -# CONFIG_SND_YMFPCI is not set - -# -# USB devices -# -# CONFIG_SND_USB_AUDIO is not set -# CONFIG_SND_USB_USX2Y is not set +# CONFIG_SND is not set # # Open Sound System # -# CONFIG_SOUND_PRIME is not set +CONFIG_SOUND_PRIME=y +CONFIG_OSS_OBSOLETE_DRIVER=y +# CONFIG_SOUND_BT878 is not set +# CONFIG_SOUND_EMU10K1 is not set +# CONFIG_SOUND_FUSION is not set +# CONFIG_SOUND_ES1371 is not set +CONFIG_SOUND_ICH=y +# CONFIG_SOUND_TRIDENT is not set +# CONFIG_SOUND_MSNDCLAS is not set +# CONFIG_SOUND_MSNDPIN is not set +# CONFIG_SOUND_VIA82CXXX is not set +# CONFIG_SOUND_OSS is not set # # USB support # CONFIG_USB_ARCH_HAS_HCD=y CONFIG_USB_ARCH_HAS_OHCI=y +CONFIG_USB_ARCH_HAS_EHCI=y CONFIG_USB=y # CONFIG_USB_DEBUG is not set @@ -1213,17 +1100,19 @@ CONFIG_USB_EHCI_HCD=y # CONFIG_USB_EHCI_SPLIT_ISO is not set # CONFIG_USB_EHCI_ROOT_HUB_TT is not set +# CONFIG_USB_EHCI_TT_NEWSCHED is not set # CONFIG_USB_ISP116X_HCD is not set -# CONFIG_USB_OHCI_HCD is not set +CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y CONFIG_USB_UHCI_HCD=y # CONFIG_USB_SL811_HCD is not set # # USB Device Class drivers # -# CONFIG_OBSOLETE_OSS_USB_DRIVER is not set # CONFIG_USB_ACM is not set -# CONFIG_USB_PRINTER is not set +CONFIG_USB_PRINTER=y # # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' @@ -1248,21 +1137,17 @@ # # USB Input Devices # -# CONFIG_USB_HID is not set - -# -# USB HID Boot Protocol drivers -# -# CONFIG_USB_KBD is not set -# CONFIG_USB_MOUSE is not set +CONFIG_USB_HID=y +CONFIG_USB_HIDINPUT=y +# CONFIG_USB_HIDINPUT_POWERBOOK is not set +# CONFIG_HID_FF is not set +# CONFIG_USB_HIDDEV is not set # CONFIG_USB_AIPTEK is not set # CONFIG_USB_WACOM is not set # CONFIG_USB_ACECAD is not set # CONFIG_USB_KBTAB is not set # CONFIG_USB_POWERMATE is not set -# CONFIG_USB_MTOUCH is not set -# CONFIG_USB_ITMTOUCH is not set -# CONFIG_USB_EGALAX is not set +# CONFIG_USB_TOUCHSCREEN is not set # CONFIG_USB_YEALINK is not set # CONFIG_USB_XPAD is not set # CONFIG_USB_ATI_REMOTE is not set @@ -1277,21 +1162,6 @@ # CONFIG_USB_MICROTEK is not set # -# USB Multimedia devices -# -# CONFIG_USB_DABUSB is not set -# CONFIG_USB_VICAM is not set -# CONFIG_USB_DSBR is not set -# CONFIG_USB_ET61X251 is not set -# CONFIG_USB_IBMCAM is not set -# CONFIG_USB_KONICAWC is not set -# CONFIG_USB_OV511 is not set -# CONFIG_USB_SE401 is not set -# CONFIG_USB_SN9C102 is not set -# CONFIG_USB_STV680 is not set -# CONFIG_USB_PWC is not set - -# # USB Network Adapters # # CONFIG_USB_CATC is not set @@ -1299,12 +1169,11 @@ # CONFIG_USB_PEGASUS is not set # CONFIG_USB_RTL8150 is not set # CONFIG_USB_USBNET is not set -# CONFIG_USB_MON is not set +CONFIG_USB_MON=y # # USB port drivers # -# CONFIG_USB_USS720 is not set # # USB Serial Converter support @@ -1321,10 +1190,12 @@ # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set # CONFIG_USB_LED is not set +# CONFIG_USB_CYPRESS_CY7C63 is not set # CONFIG_USB_CYTHERM is not set # CONFIG_USB_PHIDGETKIT is not set # CONFIG_USB_PHIDGETSERVO is not set # CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_APPLEDISPLAY is not set # CONFIG_USB_SISUSBVGA is not set # CONFIG_USB_LD is not set # CONFIG_USB_TEST is not set @@ -1344,56 +1215,96 @@ # CONFIG_MMC is not set # +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# # InfiniBand support # # CONFIG_INFINIBAND is not set # -# SN Devices +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# +# CONFIG_EDAC is not set + +# +# Real Time Clock +# +# CONFIG_RTC_CLASS is not set + +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients # # -# EDAC - error detection and reporting (RAS) +# DMA Devices # -# CONFIG_EDAC is not set # # File systems # CONFIG_EXT2_FS=y -# CONFIG_EXT2_FS_XATTR is not set +CONFIG_EXT2_FS_XATTR=y +CONFIG_EXT2_FS_POSIX_ACL=y +# CONFIG_EXT2_FS_SECURITY is not set # CONFIG_EXT2_FS_XIP is not set -# CONFIG_EXT3_FS is not set -# CONFIG_REISERFS_FS is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +CONFIG_EXT3_FS_POSIX_ACL=y +# CONFIG_EXT3_FS_SECURITY is not set +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +CONFIG_REISERFS_FS=y +# CONFIG_REISERFS_CHECK is not set +# CONFIG_REISERFS_PROC_INFO is not set +CONFIG_REISERFS_FS_XATTR=y +CONFIG_REISERFS_FS_POSIX_ACL=y +# CONFIG_REISERFS_FS_SECURITY is not set # CONFIG_JFS_FS is not set -# CONFIG_FS_POSIX_ACL is not set +CONFIG_FS_POSIX_ACL=y # CONFIG_XFS_FS is not set # CONFIG_OCFS2_FS is not set # CONFIG_MINIX_FS is not set # CONFIG_ROMFS_FS is not set -# CONFIG_INOTIFY is not set +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y # CONFIG_QUOTA is not set CONFIG_DNOTIFY=y # CONFIG_AUTOFS_FS is not set -# CONFIG_AUTOFS4_FS is not set +CONFIG_AUTOFS4_FS=y # CONFIG_FUSE_FS is not set # # CD-ROM/DVD Filesystems # CONFIG_ISO9660_FS=y -CONFIG_JOLIET=y -CONFIG_ZISOFS=y -CONFIG_ZISOFS_FS=y +# CONFIG_JOLIET is not set +# CONFIG_ZISOFS is not set # CONFIG_UDF_FS is not set # # DOS/FAT/NT Filesystems # CONFIG_FAT_FS=y -# CONFIG_MSDOS_FS is not set +CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y -CONFIG_FAT_DEFAULT_CODEPAGE=850 +CONFIG_FAT_DEFAULT_CODEPAGE=437 CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" # CONFIG_NTFS_FS is not set @@ -1404,10 +1315,9 @@ CONFIG_PROC_KCORE=y CONFIG_SYSFS=y CONFIG_TMPFS=y -# CONFIG_HUGETLBFS is not set -# CONFIG_HUGETLB_PAGE is not set +CONFIG_HUGETLBFS=y +CONFIG_HUGETLB_PAGE=y CONFIG_RAMFS=y -# CONFIG_RELAYFS_FS is not set # CONFIG_CONFIGFS_FS is not set # @@ -1430,13 +1340,26 @@ # # Network File Systems # -# CONFIG_NFS_FS is not set -# CONFIG_NFSD is not set +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +# CONFIG_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +CONFIG_NFSD=y +CONFIG_NFSD_V3=y +# CONFIG_NFSD_V3_ACL is not set +# CONFIG_NFSD_V4 is not set +CONFIG_NFSD_TCP=y +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_EXPORTFS=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set # CONFIG_SMB_FS is not set -CONFIG_CIFS=y -# CONFIG_CIFS_STATS is not set -# CONFIG_CIFS_XATTR is not set -# CONFIG_CIFS_EXPERIMENTAL is not set +# CONFIG_CIFS is not set # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set @@ -1445,33 +1368,18 @@ # # Partition Types # -CONFIG_PARTITION_ADVANCED=y -# CONFIG_ACORN_PARTITION is not set -# CONFIG_OSF_PARTITION is not set -# CONFIG_AMIGA_PARTITION is not set -# CONFIG_ATARI_PARTITION is not set -# CONFIG_MAC_PARTITION is not set +# CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y -# CONFIG_BSD_DISKLABEL is not set -# CONFIG_MINIX_SUBPARTITION is not set -# CONFIG_SOLARIS_X86_PARTITION is not set -# CONFIG_UNIXWARE_DISKLABEL is not set -# CONFIG_LDM_PARTITION is not set -# CONFIG_SGI_PARTITION is not set -# CONFIG_ULTRIX_PARTITION is not set -# CONFIG_SUN_PARTITION is not set -# CONFIG_KARMA_PARTITION is not set -# CONFIG_EFI_PARTITION is not set # # Native Language Support # CONFIG_NLS=y -CONFIG_NLS_DEFAULT="iso8859-15" -# CONFIG_NLS_CODEPAGE_437 is not set +CONFIG_NLS_DEFAULT="iso8859-1" +CONFIG_NLS_CODEPAGE_437=y # CONFIG_NLS_CODEPAGE_737 is not set # CONFIG_NLS_CODEPAGE_775 is not set -CONFIG_NLS_CODEPAGE_850=y +# CONFIG_NLS_CODEPAGE_850 is not set # CONFIG_NLS_CODEPAGE_852 is not set # CONFIG_NLS_CODEPAGE_855 is not set # CONFIG_NLS_CODEPAGE_857 is not set @@ -1491,7 +1399,7 @@ # CONFIG_NLS_ISO8859_8 is not set # CONFIG_NLS_CODEPAGE_1250 is not set # CONFIG_NLS_CODEPAGE_1251 is not set -# CONFIG_NLS_ASCII is not set +CONFIG_NLS_ASCII=y CONFIG_NLS_ISO8859_1=y # CONFIG_NLS_ISO8859_2 is not set # CONFIG_NLS_ISO8859_3 is not set @@ -1510,20 +1418,50 @@ # # Instrumentation Support # -# CONFIG_PROFILING is not set -# CONFIG_KPROBES is not set +CONFIG_PROFILING=y +CONFIG_OPROFILE=y +CONFIG_KPROBES=y # # Kernel hacking # +CONFIG_TRACE_IRQFLAGS_SUPPORT=y # CONFIG_PRINTK_TIME is not set CONFIG_MAGIC_SYSRQ=y -# CONFIG_DEBUG_KERNEL is not set -CONFIG_LOG_BUF_SHIFT=14 +CONFIG_UNUSED_SYMBOLS=y +CONFIG_DEBUG_KERNEL=y +CONFIG_LOG_BUF_SHIFT=18 +CONFIG_DETECT_SOFTLOCKUP=y +# CONFIG_SCHEDSTATS is not set +# CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_RWSEMS is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set +# CONFIG_DEBUG_KOBJECT is not set +# CONFIG_DEBUG_HIGHMEM is not set CONFIG_DEBUG_BUGVERBOSE=y +# CONFIG_DEBUG_INFO is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_DEBUG_VM is not set +# CONFIG_FRAME_POINTER is not set +CONFIG_UNWIND_INFO=y +CONFIG_STACK_UNWIND=y +# CONFIG_FORCED_INLINING is not set +# CONFIG_RCU_TORTURE_TEST is not set CONFIG_EARLY_PRINTK=y +CONFIG_DEBUG_STACKOVERFLOW=y +# CONFIG_DEBUG_STACK_USAGE is not set +# CONFIG_DEBUG_RODATA is not set +# CONFIG_4KSTACKS is not set CONFIG_X86_FIND_SMP_CONFIG=y CONFIG_X86_MPPARSE=y +CONFIG_DOUBLEFAULT=y # # Security options @@ -1537,10 +1475,6 @@ # CONFIG_CRYPTO is not set # -# Hardware crypto devices -# - -# # Library routines # # CONFIG_CRC_CCITT is not set @@ -1548,7 +1482,12 @@ CONFIG_CRC32=y # CONFIG_LIBCRC32C is not set CONFIG_ZLIB_INFLATE=y +CONFIG_PLIST=y CONFIG_GENERIC_HARDIRQS=y CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_PENDING_IRQ=y +CONFIG_X86_SMP=y +CONFIG_X86_HT=y CONFIG_X86_BIOS_REBOOT=y +CONFIG_X86_TRAMPOLINE=y CONFIG_KTIME_SCALAR=y
diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile index 5427a84..1a884b6 100644 --- a/arch/i386/kernel/Makefile +++ b/arch/i386/kernel/Makefile
@@ -4,7 +4,7 @@ extra-y := head.o init_task.o vmlinux.lds -obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \ +obj-y := process.o signal.o entry.o traps.o irq.o \ ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \ pci-dma.o i386_ksyms.o i387.o bootflag.o \ quirks.o i8237.o topology.o alternative.o i8253.o tsc.o @@ -81,4 +81,5 @@ $(call if_changed,syscall) k8-y += ../../x86_64/kernel/k8.o +stacktrace-y += ../../x86_64/kernel/stacktrace.o
diff --git a/arch/i386/kernel/acpi/Makefile b/arch/i386/kernel/acpi/Makefile index 7e9ac99..7f7be01 100644 --- a/arch/i386/kernel/acpi/Makefile +++ b/arch/i386/kernel/acpi/Makefile
@@ -1,5 +1,7 @@ obj-$(CONFIG_ACPI) += boot.o +ifneq ($(CONFIG_PCI),) obj-$(CONFIG_X86_IO_APIC) += earlyquirk.o +endif obj-$(CONFIG_ACPI_SLEEP) += sleep.o wakeup.o ifneq ($(CONFIG_ACPI_PROCESSOR),)
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c index ee003bc..1aaea6a 100644 --- a/arch/i386/kernel/acpi/boot.c +++ b/arch/i386/kernel/acpi/boot.c
@@ -26,9 +26,12 @@ #include <linux/init.h> #include <linux/acpi.h> #include <linux/efi.h> +#include <linux/cpumask.h> #include <linux/module.h> #include <linux/dmi.h> #include <linux/irq.h> +#include <linux/bootmem.h> +#include <linux/ioport.h> #include <asm/pgtable.h> #include <asm/io_apic.h> @@ -36,11 +39,17 @@ #include <asm/io.h> #include <asm/mpspec.h> +static int __initdata acpi_force = 0; + +#ifdef CONFIG_ACPI +int acpi_disabled = 0; +#else +int acpi_disabled = 1; +#endif +EXPORT_SYMBOL(acpi_disabled); + #ifdef CONFIG_X86_64 -extern void __init clustered_apic_check(void); - -extern int gsi_irq_sharing(int gsi); #include <asm/proto.h> static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return 0; } @@ -506,16 +515,76 @@ #ifdef CONFIG_ACPI_HOTPLUG_CPU int acpi_map_lsapic(acpi_handle handle, int *pcpu) { - /* TBD */ - return -EINVAL; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *obj; + struct acpi_table_lapic *lapic; + cpumask_t tmp_map, new_map; + u8 physid; + int cpu; + + if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer))) + return -EINVAL; + + if (!buffer.length || !buffer.pointer) + return -EINVAL; + + obj = buffer.pointer; + if (obj->type != ACPI_TYPE_BUFFER || + obj->buffer.length < sizeof(*lapic)) { + kfree(buffer.pointer); + return -EINVAL; + } + + lapic = (struct acpi_table_lapic *)obj->buffer.pointer; + + if ((lapic->header.type != ACPI_MADT_LAPIC) || + (!lapic->flags.enabled)) { + kfree(buffer.pointer); + return -EINVAL; + } + + physid = lapic->id; + + kfree(buffer.pointer); + buffer.length = ACPI_ALLOCATE_BUFFER; + buffer.pointer = NULL; + + tmp_map = cpu_present_map; + mp_register_lapic(physid, lapic->flags.enabled); + + /* + * If mp_register_lapic successfully generates a new logical cpu + * number, then the following will get us exactly what was mapped + */ + cpus_andnot(new_map, cpu_present_map, tmp_map); + if (cpus_empty(new_map)) { + printk ("Unable to map lapic to logical cpu number\n"); + return -EINVAL; + } + + cpu = first_cpu(new_map); + + *pcpu = cpu; + return 0; } EXPORT_SYMBOL(acpi_map_lsapic); int acpi_unmap_lsapic(int cpu) { - /* TBD */ - return -EINVAL; + int i; + + for_each_possible_cpu(i) { + if (x86_acpiid_to_apicid[i] == x86_cpu_to_apicid[cpu]) { + x86_acpiid_to_apicid[i] = -1; + break; + } + } + x86_cpu_to_apicid[cpu] = -1; + cpu_clear(cpu, cpu_present_map); + num_processors--; + + return (0); } EXPORT_SYMBOL(acpi_unmap_lsapic); @@ -579,6 +648,8 @@ static int __init acpi_parse_hpet(unsigned long phys, unsigned long size) { struct acpi_table_hpet *hpet_tbl; + struct resource *hpet_res; + resource_size_t res_start; if (!phys || !size) return -EINVAL; @@ -594,12 +665,26 @@ "memory.\n"); return -1; } + +#define HPET_RESOURCE_NAME_SIZE 9 + hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE); + if (hpet_res) { + memset(hpet_res, 0, sizeof(*hpet_res)); + hpet_res->name = (void *)&hpet_res[1]; + hpet_res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + snprintf((char *)hpet_res->name, HPET_RESOURCE_NAME_SIZE, + "HPET %u", hpet_tbl->number); + hpet_res->end = (1 * 1024) - 1; + } + #ifdef CONFIG_X86_64 vxtime.hpet_address = hpet_tbl->addr.addrl | ((long)hpet_tbl->addr.addrh << 32); printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", hpet_tbl->id, vxtime.hpet_address); + + res_start = vxtime.hpet_address; #else /* X86 */ { extern unsigned long hpet_address; @@ -607,9 +692,17 @@ hpet_address = hpet_tbl->addr.addrl; printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n", hpet_tbl->id, hpet_address); + + res_start = hpet_address; } #endif /* X86 */ + if (hpet_res) { + hpet_res->start = res_start; + hpet_res->end += res_start; + insert_resource(&iomem_resource, hpet_res); + } + return 0; } #else @@ -860,8 +953,6 @@ return; } -extern int acpi_force; - #ifdef __i386__ static int __init disable_acpi_irq(struct dmi_system_id *d) @@ -1163,3 +1254,75 @@ return 0; } + +static int __init parse_acpi(char *arg) +{ + if (!arg) + return -EINVAL; + + /* "acpi=off" disables both ACPI table parsing and interpreter */ + if (strcmp(arg, "off") == 0) { + disable_acpi(); + } + /* acpi=force to over-ride black-list */ + else if (strcmp(arg, "force") == 0) { + acpi_force = 1; + acpi_ht = 1; + acpi_disabled = 0; + } + /* acpi=strict disables out-of-spec workarounds */ + else if (strcmp(arg, "strict") == 0) { + acpi_strict = 1; + } + /* Limit ACPI just to boot-time to enable HT */ + else if (strcmp(arg, "ht") == 0) { + if (!acpi_force) + disable_acpi(); + acpi_ht = 1; + } + /* "acpi=noirq" disables ACPI interrupt routing */ + else if (strcmp(arg, "noirq") == 0) { + acpi_noirq_set(); + } else { + /* Core will printk when we return error. */ + return -EINVAL; + } + return 0; +} +early_param("acpi", parse_acpi); + +/* FIXME: Using pci= for an ACPI parameter is a travesty. */ +static int __init parse_pci(char *arg) +{ + if (arg && strcmp(arg, "noacpi") == 0) + acpi_disable_pci(); + return 0; +} +early_param("pci", parse_pci); + +#ifdef CONFIG_X86_IO_APIC +static int __init parse_acpi_skip_timer_override(char *arg) +{ + acpi_skip_timer_override = 1; + return 0; +} +early_param("acpi_skip_timer_override", parse_acpi_skip_timer_override); +#endif /* CONFIG_X86_IO_APIC */ + +static int __init setup_acpi_sci(char *s) +{ + if (!s) + return -EINVAL; + if (!strcmp(s, "edge")) + acpi_sci_flags.trigger = 1; + else if (!strcmp(s, "level")) + acpi_sci_flags.trigger = 3; + else if (!strcmp(s, "high")) + acpi_sci_flags.polarity = 1; + else if (!strcmp(s, "low")) + acpi_sci_flags.polarity = 3; + else + return -EINVAL; + return 0; +} +early_param("acpi_sci", setup_acpi_sci);
diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c index 1649a17..fe799b1 100644 --- a/arch/i386/kernel/acpi/earlyquirk.c +++ b/arch/i386/kernel/acpi/earlyquirk.c
@@ -48,7 +48,11 @@ int num, slot, func; /* Assume the machine supports type 1. If not it will - always read ffffffff and should not have any side effect. */ + always read ffffffff and should not have any side effect. + Actually a few buggy systems can machine check. Allow the user + to disable it by command line option at least -AK */ + if (!early_pci_allowed()) + return; /* Poor man's PCI discovery */ for (num = 0; num < 32; num++) {
diff --git a/arch/i386/kernel/apic.c b/arch/i386/kernel/apic.c index 8c844d0..90faae5 100644 --- a/arch/i386/kernel/apic.c +++ b/arch/i386/kernel/apic.c
@@ -52,7 +52,18 @@ /* * Knob to control our willingness to enable the local APIC. */ -int enable_local_apic __initdata = 0; /* -1=force-disable, +1=force-enable */ +static int enable_local_apic __initdata = 0; /* -1=force-disable, +1=force-enable */ + +static inline void lapic_disable(void) +{ + enable_local_apic = -1; + clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability); +} + +static inline void lapic_enable(void) +{ + enable_local_apic = 1; +} /* * Debug level @@ -586,8 +597,7 @@ printk("No ESR for 82489DX.\n"); } - if (nmi_watchdog == NMI_LOCAL_APIC) - setup_apic_nmi_watchdog(); + setup_apic_nmi_watchdog(NULL); apic_pm_activate(); } @@ -1373,3 +1383,18 @@ return 0; } + +static int __init parse_lapic(char *arg) +{ + lapic_enable(); + return 0; +} +early_param("lapic", parse_lapic); + +static int __init parse_nolapic(char *arg) +{ + lapic_disable(); + return 0; +} +early_param("nolapic", parse_nolapic); +
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c index 8591f2f..ff9ce4b 100644 --- a/arch/i386/kernel/apm.c +++ b/arch/i386/kernel/apm.c
@@ -1154,9 +1154,11 @@ static void set_time(void) { + struct timespec ts; if (got_clock_diff) { /* Must know time zone in order to set clock */ - xtime.tv_sec = get_cmos_time() + clock_cmos_diff; - xtime.tv_nsec = 0; + ts.tv_sec = get_cmos_time() + clock_cmos_diff; + ts.tv_nsec = 0; + do_settimeofday(&ts); } } @@ -1232,13 +1234,8 @@ restore_processor_state(); local_irq_disable(); - write_seqlock(&xtime_lock); - spin_lock(&i8253_lock); - reinit_timer(); set_time(); - - spin_unlock(&i8253_lock); - write_sequnlock(&xtime_lock); + reinit_timer(); if (err == APM_NO_ERROR) err = APM_SUCCESS; @@ -1365,9 +1362,7 @@ ignore_bounce = 1; if ((event != APM_NORMAL_RESUME) || (ignore_normal_resume == 0)) { - write_seqlock_irq(&xtime_lock); set_time(); - write_sequnlock_irq(&xtime_lock); device_resume(); pm_send_all(PM_RESUME, (void *)0); queue_event(event, NULL); @@ -1383,9 +1378,7 @@ break; case APM_UPDATE_TIME: - write_seqlock_irq(&xtime_lock); set_time(); - write_sequnlock_irq(&xtime_lock); break; case APM_CRITICAL_SUSPEND: @@ -2339,6 +2332,7 @@ ret = kernel_thread(apm, NULL, CLONE_KERNEL | SIGCHLD); if (ret < 0) { printk(KERN_ERR "apm: disabled - Unable to start kernel thread.\n"); + remove_proc_entry("apm", NULL); return -ENOMEM; } @@ -2348,7 +2342,13 @@ return 0; } - misc_register(&apm_device); + /* + * Note we don't actually care if the misc_device cannot be registered. + * this driver can do its job without it, even if userspace can't + * control it. just log the error + */ + if (misc_register(&apm_device)) + printk(KERN_WARNING "apm: Could not register misc device.\n"); if (HZ != 100) idle_period = (idle_period * HZ) / 100;
diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c index e6a2d6b..e475809 100644 --- a/arch/i386/kernel/cpu/amd.c +++ b/arch/i386/kernel/cpu/amd.c
@@ -22,7 +22,7 @@ extern void vide(void); __asm__(".align 4\nvide: ret"); -static void __init init_amd(struct cpuinfo_x86 *c) +static void __cpuinit init_amd(struct cpuinfo_x86 *c) { u32 l, h; int mbytes = num_physpages >> (20-PAGE_SHIFT); @@ -246,7 +246,7 @@ num_cache_leaves = 3; } -static unsigned int amd_size_cache(struct cpuinfo_x86 * c, unsigned int size) +static unsigned int __cpuinit amd_size_cache(struct cpuinfo_x86 * c, unsigned int size) { /* AMD errata T13 (order #21922) */ if ((c->x86 == 6)) { @@ -259,7 +259,7 @@ return size; } -static struct cpu_dev amd_cpu_dev __initdata = { +static struct cpu_dev amd_cpu_dev __cpuinitdata = { .c_vendor = "AMD", .c_ident = { "AuthenticAMD" }, .c_models = { @@ -275,7 +275,6 @@ }, }, .c_init = init_amd, - .c_identify = generic_identify, .c_size_cache = amd_size_cache, };
diff --git a/arch/i386/kernel/cpu/centaur.c b/arch/i386/kernel/cpu/centaur.c index bd75629..8c25047 100644 --- a/arch/i386/kernel/cpu/centaur.c +++ b/arch/i386/kernel/cpu/centaur.c
@@ -9,7 +9,7 @@ #ifdef CONFIG_X86_OOSTORE -static u32 __init power2(u32 x) +static u32 __cpuinit power2(u32 x) { u32 s=1; while(s<=x) @@ -22,7 +22,7 @@ * Set up an actual MCR */ -static void __init centaur_mcr_insert(int reg, u32 base, u32 size, int key) +static void __cpuinit centaur_mcr_insert(int reg, u32 base, u32 size, int key) { u32 lo, hi; @@ -40,7 +40,7 @@ * Shortcut: We know you can't put 4Gig of RAM on a winchip */ -static u32 __init ramtop(void) /* 16388 */ +static u32 __cpuinit ramtop(void) /* 16388 */ { int i; u32 top = 0; @@ -91,7 +91,7 @@ * Compute a set of MCR's to give maximum coverage */ -static int __init centaur_mcr_compute(int nr, int key) +static int __cpuinit centaur_mcr_compute(int nr, int key) { u32 mem = ramtop(); u32 root = power2(mem); @@ -166,7 +166,7 @@ return ct; } -static void __init centaur_create_optimal_mcr(void) +static void __cpuinit centaur_create_optimal_mcr(void) { int i; /* @@ -189,7 +189,7 @@ wrmsr(MSR_IDT_MCR0+i, 0, 0); } -static void __init winchip2_create_optimal_mcr(void) +static void __cpuinit winchip2_create_optimal_mcr(void) { u32 lo, hi; int i; @@ -227,7 +227,7 @@ * Handle the MCR key on the Winchip 2. */ -static void __init winchip2_unprotect_mcr(void) +static void __cpuinit winchip2_unprotect_mcr(void) { u32 lo, hi; u32 key; @@ -239,7 +239,7 @@ wrmsr(MSR_IDT_MCR_CTRL, lo, hi); } -static void __init winchip2_protect_mcr(void) +static void __cpuinit winchip2_protect_mcr(void) { u32 lo, hi; @@ -257,7 +257,7 @@ #define RNG_ENABLED (1 << 3) #define RNG_ENABLE (1 << 6) /* MSR_VIA_RNG */ -static void __init init_c3(struct cpuinfo_x86 *c) +static void __cpuinit init_c3(struct cpuinfo_x86 *c) { u32 lo, hi; @@ -303,7 +303,7 @@ display_cacheinfo(c); } -static void __init init_centaur(struct cpuinfo_x86 *c) +static void __cpuinit init_centaur(struct cpuinfo_x86 *c) { enum { ECX8=1<<1, @@ -442,7 +442,7 @@ } } -static unsigned int centaur_size_cache(struct cpuinfo_x86 * c, unsigned int size) +static unsigned int __cpuinit centaur_size_cache(struct cpuinfo_x86 * c, unsigned int size) { /* VIA C3 CPUs (670-68F) need further shifting. */ if ((c->x86 == 6) && ((c->x86_model == 7) || (c->x86_model == 8))) @@ -457,7 +457,7 @@ return size; } -static struct cpu_dev centaur_cpu_dev __initdata = { +static struct cpu_dev centaur_cpu_dev __cpuinitdata = { .c_vendor = "Centaur", .c_ident = { "CentaurHauls" }, .c_init = init_centaur,
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c index 70c87de..2799baa 100644 --- a/arch/i386/kernel/cpu/common.c +++ b/arch/i386/kernel/cpu/common.c
@@ -36,7 +36,7 @@ extern int disable_pse; -static void default_init(struct cpuinfo_x86 * c) +static void __cpuinit default_init(struct cpuinfo_x86 * c) { /* Not much we can do here... */ /* Check if at least it has cpuid */ @@ -49,7 +49,7 @@ } } -static struct cpu_dev default_cpu = { +static struct cpu_dev __cpuinitdata default_cpu = { .c_init = default_init, .c_vendor = "Unknown", }; @@ -265,7 +265,7 @@ } } -void __cpuinit generic_identify(struct cpuinfo_x86 * c) +static void __cpuinit generic_identify(struct cpuinfo_x86 * c) { u32 tfms, xlvl; int ebx; @@ -675,7 +675,7 @@ #endif /* Clear %fs and %gs. */ - asm volatile ("xorl %eax, %eax; movl %eax, %fs; movl %eax, %gs"); + asm volatile ("movl %0, %%fs; movl %0, %%gs" : : "r" (0)); /* Clear all 6 debug registers: */ set_debugreg(0, 0);
diff --git a/arch/i386/kernel/cpu/cpu.h b/arch/i386/kernel/cpu/cpu.h index 5a1d4f1..2f6432c 100644 --- a/arch/i386/kernel/cpu/cpu.h +++ b/arch/i386/kernel/cpu/cpu.h
@@ -24,7 +24,5 @@ extern int get_model_name(struct cpuinfo_x86 *c); extern void display_cacheinfo(struct cpuinfo_x86 *c); -extern void generic_identify(struct cpuinfo_x86 * c); - extern void early_intel_workaround(struct cpuinfo_x86 *c);
diff --git a/arch/i386/kernel/cpu/cyrix.c b/arch/i386/kernel/cpu/cyrix.c index f03b7f9..c0c3b59 100644 --- a/arch/i386/kernel/cpu/cyrix.c +++ b/arch/i386/kernel/cpu/cyrix.c
@@ -12,7 +12,7 @@ /* * Read NSC/Cyrix DEVID registers (DIR) to get more detailed info. about the CPU */ -static void __init do_cyrix_devid(unsigned char *dir0, unsigned char *dir1) +static void __cpuinit do_cyrix_devid(unsigned char *dir0, unsigned char *dir1) { unsigned char ccr2, ccr3; unsigned long flags; @@ -52,25 +52,25 @@ * Actually since bugs.h doesn't even reference this perhaps someone should * fix the documentation ??? */ -static unsigned char Cx86_dir0_msb __initdata = 0; +static unsigned char Cx86_dir0_msb __cpuinitdata = 0; -static char Cx86_model[][9] __initdata = { +static char Cx86_model[][9] __cpuinitdata = { "Cx486", "Cx486", "5x86 ", "6x86", "MediaGX ", "6x86MX ", "M II ", "Unknown" }; -static char Cx486_name[][5] __initdata = { +static char Cx486_name[][5] __cpuinitdata = { "SLC", "DLC", "SLC2", "DLC2", "SRx", "DRx", "SRx2", "DRx2" }; -static char Cx486S_name[][4] __initdata = { +static char Cx486S_name[][4] __cpuinitdata = { "S", "S2", "Se", "S2e" }; -static char Cx486D_name[][4] __initdata = { +static char Cx486D_name[][4] __cpuinitdata = { "DX", "DX2", "?", "?", "?", "DX4" }; -static char Cx86_cb[] __initdata = "?.5x Core/Bus Clock"; -static char cyrix_model_mult1[] __initdata = "12??43"; -static char cyrix_model_mult2[] __initdata = "12233445"; +static char Cx86_cb[] __cpuinitdata = "?.5x Core/Bus Clock"; +static char cyrix_model_mult1[] __cpuinitdata = "12??43"; +static char cyrix_model_mult2[] __cpuinitdata = "12233445"; /* * Reset the slow-loop (SLOP) bit on the 686(L) which is set by some old @@ -82,7 +82,7 @@ extern void calibrate_delay(void) __init; -static void __init check_cx686_slop(struct cpuinfo_x86 *c) +static void __cpuinit check_cx686_slop(struct cpuinfo_x86 *c) { unsigned long flags; @@ -107,7 +107,7 @@ } -static void __init set_cx86_reorder(void) +static void __cpuinit set_cx86_reorder(void) { u8 ccr3; @@ -122,7 +122,7 @@ setCx86(CX86_CCR3, ccr3); } -static void __init set_cx86_memwb(void) +static void __cpuinit set_cx86_memwb(void) { u32 cr0; @@ -137,7 +137,7 @@ setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x14 ); } -static void __init set_cx86_inc(void) +static void __cpuinit set_cx86_inc(void) { unsigned char ccr3; @@ -158,7 +158,7 @@ * Configure later MediaGX and/or Geode processor. */ -static void __init geode_configure(void) +static void __cpuinit geode_configure(void) { unsigned long flags; u8 ccr3, ccr4; @@ -184,14 +184,14 @@ #ifdef CONFIG_PCI -static struct pci_device_id __initdata cyrix_55x0[] = { +static struct pci_device_id __cpuinitdata cyrix_55x0[] = { { PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5510) }, { PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5520) }, { }, }; #endif -static void __init init_cyrix(struct cpuinfo_x86 *c) +static void __cpuinit init_cyrix(struct cpuinfo_x86 *c) { unsigned char dir0, dir0_msn, dir0_lsn, dir1 = 0; char *buf = c->x86_model_id; @@ -346,7 +346,7 @@ /* * Handle National Semiconductor branded processors */ -static void __init init_nsc(struct cpuinfo_x86 *c) +static void __cpuinit init_nsc(struct cpuinfo_x86 *c) { /* There may be GX1 processors in the wild that are branded * NSC and not Cyrix. @@ -394,7 +394,7 @@ return (unsigned char) (test >> 8) == 0x02; } -static void cyrix_identify(struct cpuinfo_x86 * c) +static void __cpuinit cyrix_identify(struct cpuinfo_x86 * c) { /* Detect Cyrix with disabled CPUID */ if ( c->x86 == 4 && test_cyrix_52div() ) { @@ -427,10 +427,9 @@ local_irq_restore(flags); } } - generic_identify(c); } -static struct cpu_dev cyrix_cpu_dev __initdata = { +static struct cpu_dev cyrix_cpu_dev __cpuinitdata = { .c_vendor = "Cyrix", .c_ident = { "CyrixInstead" }, .c_init = init_cyrix, @@ -453,11 +452,10 @@ late_initcall(cyrix_exit_cpu); -static struct cpu_dev nsc_cpu_dev __initdata = { +static struct cpu_dev nsc_cpu_dev __cpuinitdata = { .c_vendor = "NSC", .c_ident = { "Geode by NSC" }, .c_init = init_nsc, - .c_identify = generic_identify, }; int __init nsc_init_cpu(void)
diff --git a/arch/i386/kernel/cpu/intel.c b/arch/i386/kernel/cpu/intel.c index 5a2e270..94a95aa 100644 --- a/arch/i386/kernel/cpu/intel.c +++ b/arch/i386/kernel/cpu/intel.c
@@ -198,7 +198,7 @@ } -static unsigned int intel_size_cache(struct cpuinfo_x86 * c, unsigned int size) +static unsigned int __cpuinit intel_size_cache(struct cpuinfo_x86 * c, unsigned int size) { /* Intel PIII Tualatin. This comes in two flavours. * One has 256kb of cache, the other 512. We have no way @@ -263,7 +263,6 @@ }, }, .c_init = init_intel, - .c_identify = generic_identify, .c_size_cache = intel_size_cache, };
diff --git a/arch/i386/kernel/cpu/mcheck/Makefile b/arch/i386/kernel/cpu/mcheck/Makefile index 30808f3..f1ebe1c 100644 --- a/arch/i386/kernel/cpu/mcheck/Makefile +++ b/arch/i386/kernel/cpu/mcheck/Makefile
@@ -1,2 +1,2 @@ -obj-y = mce.o k7.o p4.o p5.o p6.o winchip.o +obj-y = mce.o k7.o p4.o p5.o p6.o winchip.o therm_throt.o obj-$(CONFIG_X86_MCE_NONFATAL) += non-fatal.o
diff --git a/arch/i386/kernel/cpu/mcheck/p4.c b/arch/i386/kernel/cpu/mcheck/p4.c index b95f1b3d..504434a 100644 --- a/arch/i386/kernel/cpu/mcheck/p4.c +++ b/arch/i386/kernel/cpu/mcheck/p4.c
@@ -13,6 +13,8 @@ #include <asm/msr.h> #include <asm/apic.h> +#include <asm/therm_throt.h> + #include "mce.h" /* as supported by the P4/Xeon family */ @@ -44,25 +46,12 @@ /* P4/Xeon Thermal transition interrupt handler */ static void intel_thermal_interrupt(struct pt_regs *regs) { - u32 l, h; - unsigned int cpu = smp_processor_id(); - static unsigned long next[NR_CPUS]; + __u64 msr_val; ack_APIC_irq(); - if (time_after(next[cpu], jiffies)) - return; - - next[cpu] = jiffies + HZ*5; - rdmsr(MSR_IA32_THERM_STATUS, l, h); - if (l & 0x1) { - printk(KERN_EMERG "CPU%d: Temperature above threshold\n", cpu); - printk(KERN_EMERG "CPU%d: Running in modulated clock mode\n", - cpu); - add_taint(TAINT_MACHINE_CHECK); - } else { - printk(KERN_INFO "CPU%d: Temperature/speed normal\n", cpu); - } + rdmsrl(MSR_IA32_THERM_STATUS, msr_val); + therm_throt_process(msr_val & 0x1); } /* Thermal interrupt handler for this CPU setup */ @@ -122,10 +111,13 @@ rdmsr (MSR_IA32_MISC_ENABLE, l, h); wrmsr (MSR_IA32_MISC_ENABLE, l | (1<<3), h); - + l = apic_read (APIC_LVTTHMR); apic_write_around (APIC_LVTTHMR, l & ~APIC_LVT_MASKED); printk (KERN_INFO "CPU%d: Thermal monitoring enabled\n", cpu); + + /* enable thermal throttle processing */ + atomic_set(&therm_throt_en, 1); return; } #endif /* CONFIG_X86_MCE_P4THERMAL */
diff --git a/arch/i386/kernel/cpu/mcheck/therm_throt.c b/arch/i386/kernel/cpu/mcheck/therm_throt.c new file mode 100644 index 0000000..4f43047 --- /dev/null +++ b/arch/i386/kernel/cpu/mcheck/therm_throt.c
@@ -0,0 +1,180 @@ +/* + * linux/arch/i386/kerne/cpu/mcheck/therm_throt.c + * + * Thermal throttle event support code (such as syslog messaging and rate + * limiting) that was factored out from x86_64 (mce_intel.c) and i386 (p4.c). + * This allows consistent reporting of CPU thermal throttle events. + * + * Maintains a counter in /sys that keeps track of the number of thermal + * events, such that the user knows how bad the thermal problem might be + * (since the logging to syslog and mcelog is rate limited). + * + * Author: Dmitriy Zavin (dmitriyz@google.com) + * + * Credits: Adapted from Zwane Mwaikambo's original code in mce_intel.c. + * Inspired by Ross Biro's and Al Borchers' counter code. + */ + +#include <linux/percpu.h> +#include <linux/sysdev.h> +#include <linux/cpu.h> +#include <asm/cpu.h> +#include <linux/notifier.h> +#include <asm/therm_throt.h> + +/* How long to wait between reporting thermal events */ +#define CHECK_INTERVAL (300 * HZ) + +static DEFINE_PER_CPU(__u64, next_check) = INITIAL_JIFFIES; +static DEFINE_PER_CPU(unsigned long, thermal_throttle_count); +atomic_t therm_throt_en = ATOMIC_INIT(0); + +#ifdef CONFIG_SYSFS +#define define_therm_throt_sysdev_one_ro(_name) \ + static SYSDEV_ATTR(_name, 0444, therm_throt_sysdev_show_##_name, NULL) + +#define define_therm_throt_sysdev_show_func(name) \ +static ssize_t therm_throt_sysdev_show_##name(struct sys_device *dev, \ + char *buf) \ +{ \ + unsigned int cpu = dev->id; \ + ssize_t ret; \ + \ + preempt_disable(); /* CPU hotplug */ \ + if (cpu_online(cpu)) \ + ret = sprintf(buf, "%lu\n", \ + per_cpu(thermal_throttle_##name, cpu)); \ + else \ + ret = 0; \ + preempt_enable(); \ + \ + return ret; \ +} + +define_therm_throt_sysdev_show_func(count); +define_therm_throt_sysdev_one_ro(count); + +static struct attribute *thermal_throttle_attrs[] = { + &attr_count.attr, + NULL +}; + +static struct attribute_group thermal_throttle_attr_group = { + .attrs = thermal_throttle_attrs, + .name = "thermal_throttle" +}; +#endif /* CONFIG_SYSFS */ + +/*** + * therm_throt_process - Process thermal throttling event from interrupt + * @curr: Whether the condition is current or not (boolean), since the + * thermal interrupt normally gets called both when the thermal + * event begins and once the event has ended. + * + * This function is called by the thermal interrupt after the + * IRQ has been acknowledged. + * + * It will take care of rate limiting and printing messages to the syslog. + * + * Returns: 0 : Event should NOT be further logged, i.e. still in + * "timeout" from previous log message. + * 1 : Event should be logged further, and a message has been + * printed to the syslog. + */ +int therm_throt_process(int curr) +{ + unsigned int cpu = smp_processor_id(); + __u64 tmp_jiffs = get_jiffies_64(); + + if (curr) + __get_cpu_var(thermal_throttle_count)++; + + if (time_before64(tmp_jiffs, __get_cpu_var(next_check))) + return 0; + + __get_cpu_var(next_check) = tmp_jiffs + CHECK_INTERVAL; + + /* if we just entered the thermal event */ + if (curr) { + printk(KERN_CRIT "CPU%d: Temperature above threshold, " + "cpu clock throttled (total events = %lu)\n", cpu, + __get_cpu_var(thermal_throttle_count)); + + add_taint(TAINT_MACHINE_CHECK); + } else { + printk(KERN_CRIT "CPU%d: Temperature/speed normal\n", cpu); + } + + return 1; +} + +#ifdef CONFIG_SYSFS +/* Add/Remove thermal_throttle interface for CPU device */ +static __cpuinit int thermal_throttle_add_dev(struct sys_device * sys_dev) +{ + sysfs_create_group(&sys_dev->kobj, &thermal_throttle_attr_group); + return 0; +} + +#ifdef CONFIG_HOTPLUG_CPU +static __cpuinit int thermal_throttle_remove_dev(struct sys_device * sys_dev) +{ + sysfs_remove_group(&sys_dev->kobj, &thermal_throttle_attr_group); + return 0; +} + +/* Mutex protecting device creation against CPU hotplug */ +static DEFINE_MUTEX(therm_cpu_lock); + +/* Get notified when a cpu comes on/off. Be hotplug friendly. */ +static __cpuinit int thermal_throttle_cpu_callback(struct notifier_block *nfb, + unsigned long action, + void *hcpu) +{ + unsigned int cpu = (unsigned long)hcpu; + struct sys_device *sys_dev; + + sys_dev = get_cpu_sysdev(cpu); + mutex_lock(&therm_cpu_lock); + switch (action) { + case CPU_ONLINE: + thermal_throttle_add_dev(sys_dev); + break; + case CPU_DEAD: + thermal_throttle_remove_dev(sys_dev); + break; + } + mutex_unlock(&therm_cpu_lock); + return NOTIFY_OK; +} + +static struct notifier_block thermal_throttle_cpu_notifier = +{ + .notifier_call = thermal_throttle_cpu_callback, +}; +#endif /* CONFIG_HOTPLUG_CPU */ + +static __init int thermal_throttle_init_device(void) +{ + unsigned int cpu = 0; + + if (!atomic_read(&therm_throt_en)) + return 0; + + register_hotcpu_notifier(&thermal_throttle_cpu_notifier); + +#ifdef CONFIG_HOTPLUG_CPU + mutex_lock(&therm_cpu_lock); +#endif + /* connect live CPUs to sysfs */ + for_each_online_cpu(cpu) + thermal_throttle_add_dev(get_cpu_sysdev(cpu)); +#ifdef CONFIG_HOTPLUG_CPU + mutex_unlock(&therm_cpu_lock); +#endif + + return 0; +} + +device_initcall(thermal_throttle_init_device); +#endif /* CONFIG_SYSFS */
diff --git a/arch/i386/kernel/cpu/mtrr/generic.c b/arch/i386/kernel/cpu/mtrr/generic.c index 169ac8e..0b61eed 100644 --- a/arch/i386/kernel/cpu/mtrr/generic.c +++ b/arch/i386/kernel/cpu/mtrr/generic.c
@@ -243,7 +243,7 @@ * has been called. */ -static void prepare_set(void) +static void prepare_set(void) __acquires(set_atomicity_lock) { unsigned long cr0; @@ -274,7 +274,7 @@ mtrr_wrmsr(MTRRdefType_MSR, deftype_lo & 0xf300UL, deftype_hi); } -static void post_set(void) +static void post_set(void) __releases(set_atomicity_lock) { /* Flush TLBs (no need to flush caches - they are disabled) */ __flush_tlb();
diff --git a/arch/i386/kernel/cpu/nexgen.c b/arch/i386/kernel/cpu/nexgen.c index ad87fa5..8bf23cc 100644 --- a/arch/i386/kernel/cpu/nexgen.c +++ b/arch/i386/kernel/cpu/nexgen.c
@@ -10,7 +10,7 @@ * to have CPUID. (Thanks to Herbert Oppmann) */ -static int __init deep_magic_nexgen_probe(void) +static int __cpuinit deep_magic_nexgen_probe(void) { int ret; @@ -27,21 +27,20 @@ return ret; } -static void __init init_nexgen(struct cpuinfo_x86 * c) +static void __cpuinit init_nexgen(struct cpuinfo_x86 * c) { c->x86_cache_size = 256; /* A few had 1 MB... */ } -static void __init nexgen_identify(struct cpuinfo_x86 * c) +static void __cpuinit nexgen_identify(struct cpuinfo_x86 * c) { /* Detect NexGen with old hypercode */ if ( deep_magic_nexgen_probe() ) { strcpy(c->x86_vendor_id, "NexGenDriven"); } - generic_identify(c); } -static struct cpu_dev nexgen_cpu_dev __initdata = { +static struct cpu_dev nexgen_cpu_dev __cpuinitdata = { .c_vendor = "Nexgen", .c_ident = { "NexGenDriven" }, .c_models = {
diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c index f54a152..76aac08 100644 --- a/arch/i386/kernel/cpu/proc.c +++ b/arch/i386/kernel/cpu/proc.c
@@ -46,8 +46,8 @@ /* Intel-defined (#2) */ "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est", - "tm2", NULL, "cid", NULL, NULL, "cx16", "xtpr", NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL, + NULL, NULL, "dca", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* VIA/Cyrix/Centaur-defined */
diff --git a/arch/i386/kernel/cpu/rise.c b/arch/i386/kernel/cpu/rise.c index d08d5a2..9317f74 100644 --- a/arch/i386/kernel/cpu/rise.c +++ b/arch/i386/kernel/cpu/rise.c
@@ -5,7 +5,7 @@ #include "cpu.h" -static void __init init_rise(struct cpuinfo_x86 *c) +static void __cpuinit init_rise(struct cpuinfo_x86 *c) { printk("CPU: Rise iDragon"); if (c->x86_model > 2) @@ -28,7 +28,7 @@ set_bit(X86_FEATURE_CX8, c->x86_capability); } -static struct cpu_dev rise_cpu_dev __initdata = { +static struct cpu_dev rise_cpu_dev __cpuinitdata = { .c_vendor = "Rise", .c_ident = { "RiseRiseRise" }, .c_models = {
diff --git a/arch/i386/kernel/cpu/transmeta.c b/arch/i386/kernel/cpu/transmeta.c index 7214c9b..4056fb7 100644 --- a/arch/i386/kernel/cpu/transmeta.c +++ b/arch/i386/kernel/cpu/transmeta.c
@@ -5,7 +5,7 @@ #include <asm/msr.h> #include "cpu.h" -static void __init init_transmeta(struct cpuinfo_x86 *c) +static void __cpuinit init_transmeta(struct cpuinfo_x86 *c) { unsigned int cap_mask, uk, max, dummy; unsigned int cms_rev1, cms_rev2; @@ -85,10 +85,9 @@ #endif } -static void __init transmeta_identify(struct cpuinfo_x86 * c) +static void __cpuinit transmeta_identify(struct cpuinfo_x86 * c) { u32 xlvl; - generic_identify(c); /* Transmeta-defined flags: level 0x80860001 */ xlvl = cpuid_eax(0x80860000); @@ -98,7 +97,7 @@ } } -static struct cpu_dev transmeta_cpu_dev __initdata = { +static struct cpu_dev transmeta_cpu_dev __cpuinitdata = { .c_vendor = "Transmeta", .c_ident = { "GenuineTMx86", "TransmetaCPU" }, .c_init = init_transmeta,
diff --git a/arch/i386/kernel/cpu/umc.c b/arch/i386/kernel/cpu/umc.c index 2cd988f..1bf3f87 100644 --- a/arch/i386/kernel/cpu/umc.c +++ b/arch/i386/kernel/cpu/umc.c
@@ -5,12 +5,8 @@ /* UMC chips appear to be only either 386 or 486, so no special init takes place. */ -static void __init init_umc(struct cpuinfo_x86 * c) -{ -} - -static struct cpu_dev umc_cpu_dev __initdata = { +static struct cpu_dev umc_cpu_dev __cpuinitdata = { .c_vendor = "UMC", .c_ident = { "UMC UMC UMC" }, .c_models = { @@ -21,7 +17,6 @@ } }, }, - .c_init = init_umc, }; int __init umc_init_cpu(void)
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c index 5b96f03..67d297d 100644 --- a/arch/i386/kernel/crash.c +++ b/arch/i386/kernel/crash.c
@@ -22,6 +22,8 @@ #include <asm/nmi.h> #include <asm/hw_irq.h> #include <asm/apic.h> +#include <asm/kdebug.h> + #include <mach_ipi.h> @@ -93,16 +95,25 @@ #if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC) static atomic_t waiting_for_crash_ipi; -static int crash_nmi_callback(struct pt_regs *regs, int cpu) +static int crash_nmi_callback(struct notifier_block *self, + unsigned long val, void *data) { + struct pt_regs *regs; struct pt_regs fixed_regs; + int cpu; + + if (val != DIE_NMI_IPI) + return NOTIFY_OK; + + regs = ((struct die_args *)data)->regs; + cpu = raw_smp_processor_id(); /* Don't do anything if this handler is invoked on crashing cpu. * Otherwise, system will completely hang. Crashing cpu can get * an NMI if system was initially booted with nmi_watchdog parameter. */ if (cpu == crashing_cpu) - return 1; + return NOTIFY_STOP; local_irq_disable(); if (!user_mode_vm(regs)) { @@ -125,13 +136,18 @@ send_IPI_allbutself(NMI_VECTOR); } +static struct notifier_block crash_nmi_nb = { + .notifier_call = crash_nmi_callback, +}; + static void nmi_shootdown_cpus(void) { unsigned long msecs; atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1); /* Would it be better to replace the trap vector here? */ - set_nmi_callback(crash_nmi_callback); + if (register_die_notifier(&crash_nmi_nb)) + return; /* return what? */ /* Ensure the new callback function is set before sending * out the NMI */
diff --git a/arch/i386/kernel/efi_stub.S b/arch/i386/kernel/efi_stub.S index d3ee73a..ef00bb7 100644 --- a/arch/i386/kernel/efi_stub.S +++ b/arch/i386/kernel/efi_stub.S
@@ -7,7 +7,6 @@ #include <linux/linkage.h> #include <asm/page.h> -#include <asm/pgtable.h> /* * efi_call_phys(void *, ...) is a function with variable parameters.
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S index 87f9f60..5a63d6f 100644 --- a/arch/i386/kernel/entry.S +++ b/arch/i386/kernel/entry.S
@@ -76,8 +76,15 @@ NT_MASK = 0x00004000 VM_MASK = 0x00020000 +/* These are replaces for paravirtualization */ +#define DISABLE_INTERRUPTS cli +#define ENABLE_INTERRUPTS sti +#define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit +#define INTERRUPT_RETURN iret +#define GET_CR0_INTO_EAX movl %cr0, %eax + #ifdef CONFIG_PREEMPT -#define preempt_stop cli; TRACE_IRQS_OFF +#define preempt_stop DISABLE_INTERRUPTS; TRACE_IRQS_OFF #else #define preempt_stop #define resume_kernel restore_nocheck @@ -176,18 +183,21 @@ #define RING0_INT_FRAME \ CFI_STARTPROC simple;\ + CFI_SIGNAL_FRAME;\ CFI_DEF_CFA esp, 3*4;\ /*CFI_OFFSET cs, -2*4;*/\ CFI_OFFSET eip, -3*4 #define RING0_EC_FRAME \ CFI_STARTPROC simple;\ + CFI_SIGNAL_FRAME;\ CFI_DEF_CFA esp, 4*4;\ /*CFI_OFFSET cs, -2*4;*/\ CFI_OFFSET eip, -3*4 #define RING0_PTREGS_FRAME \ CFI_STARTPROC simple;\ + CFI_SIGNAL_FRAME;\ CFI_DEF_CFA esp, OLDESP-EBX;\ /*CFI_OFFSET cs, CS-OLDESP;*/\ CFI_OFFSET eip, EIP-OLDESP;\ @@ -233,10 +243,11 @@ check_userspace: movl EFLAGS(%esp), %eax # mix EFLAGS and CS movb CS(%esp), %al - testl $(VM_MASK | 3), %eax - jz resume_kernel + andl $(VM_MASK | SEGMENT_RPL_MASK), %eax + cmpl $USER_RPL, %eax + jb resume_kernel # not returning to v8086 or userspace ENTRY(resume_userspace) - cli # make sure we don't miss an interrupt + DISABLE_INTERRUPTS # make sure we don't miss an interrupt # setting need_resched or sigpending # between sampling and the iret movl TI_flags(%ebp), %ecx @@ -247,7 +258,7 @@ #ifdef CONFIG_PREEMPT ENTRY(resume_kernel) - cli + DISABLE_INTERRUPTS cmpl $0,TI_preempt_count(%ebp) # non-zero preempt_count ? jnz restore_nocheck need_resched: @@ -267,6 +278,7 @@ # sysenter call handler stub ENTRY(sysenter_entry) CFI_STARTPROC simple + CFI_SIGNAL_FRAME CFI_DEF_CFA esp, 0 CFI_REGISTER esp, ebp movl TSS_sysenter_esp0(%esp),%esp @@ -275,7 +287,7 @@ * No need to follow this irqs on/off section: the syscall * disabled irqs and here we enable it straight after entry: */ - sti + ENABLE_INTERRUPTS pushl $(__USER_DS) CFI_ADJUST_CFA_OFFSET 4 /*CFI_REL_OFFSET ss, 0*/ @@ -320,7 +332,7 @@ jae syscall_badsys call *sys_call_table(,%eax,4) movl %eax,EAX(%esp) - cli + DISABLE_INTERRUPTS TRACE_IRQS_OFF movl TI_flags(%ebp), %ecx testw $_TIF_ALLWORK_MASK, %cx @@ -330,8 +342,7 @@ movl OLDESP(%esp), %ecx xorl %ebp,%ebp TRACE_IRQS_ON - sti - sysexit + ENABLE_INTERRUPTS_SYSEXIT CFI_ENDPROC @@ -356,7 +367,7 @@ call *sys_call_table(,%eax,4) movl %eax,EAX(%esp) # store the return value syscall_exit: - cli # make sure we don't miss an interrupt + DISABLE_INTERRUPTS # make sure we don't miss an interrupt # setting need_resched or sigpending # between sampling and the iret TRACE_IRQS_OFF @@ -371,8 +382,8 @@ # See comments in process.c:copy_thread() for details. movb OLDSS(%esp), %ah movb CS(%esp), %al - andl $(VM_MASK | (4 << 8) | 3), %eax - cmpl $((4 << 8) | 3), %eax + andl $(VM_MASK | (SEGMENT_TI_MASK << 8) | SEGMENT_RPL_MASK), %eax + cmpl $((SEGMENT_LDT << 8) | USER_RPL), %eax CFI_REMEMBER_STATE je ldt_ss # returning to user-space with LDT SS restore_nocheck: @@ -381,11 +392,11 @@ RESTORE_REGS addl $4, %esp CFI_ADJUST_CFA_OFFSET -4 -1: iret +1: INTERRUPT_RETURN .section .fixup,"ax" iret_exc: TRACE_IRQS_ON - sti + ENABLE_INTERRUPTS pushl $0 # no error code pushl $do_iret_error jmp error_code @@ -409,7 +420,7 @@ * dosemu and wine happy. */ subl $8, %esp # reserve space for switch16 pointer CFI_ADJUST_CFA_OFFSET 8 - cli + DISABLE_INTERRUPTS TRACE_IRQS_OFF movl %esp, %eax /* Set up the 16bit stack frame with switch32 pointer on top, @@ -419,7 +430,7 @@ TRACE_IRQS_IRET RESTORE_REGS lss 20+4(%esp), %esp # switch to 16bit stack -1: iret +1: INTERRUPT_RETURN .section __ex_table,"a" .align 4 .long 1b,iret_exc @@ -434,7 +445,7 @@ jz work_notifysig work_resched: call schedule - cli # make sure we don't miss an interrupt + DISABLE_INTERRUPTS # make sure we don't miss an interrupt # setting need_resched or sigpending # between sampling and the iret TRACE_IRQS_OFF @@ -490,7 +501,7 @@ testb $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP), %cl jz work_pending TRACE_IRQS_ON - sti # could let do_syscall_trace() call + ENABLE_INTERRUPTS # could let do_syscall_trace() call # schedule() instead movl %esp, %eax movl $1, %edx @@ -591,11 +602,9 @@ /* The include is where all of the SMP etc. interrupts come from */ #include "entry_arch.h" -ENTRY(divide_error) - RING0_INT_FRAME - pushl $0 # no error code - CFI_ADJUST_CFA_OFFSET 4 - pushl $do_divide_error +KPROBE_ENTRY(page_fault) + RING0_EC_FRAME + pushl $do_page_fault CFI_ADJUST_CFA_OFFSET 4 ALIGN error_code: @@ -645,6 +654,7 @@ call *%edi jmp ret_from_exception CFI_ENDPROC +KPROBE_END(page_fault) ENTRY(coprocessor_error) RING0_INT_FRAME @@ -669,7 +679,7 @@ pushl $-1 # mark this as an int CFI_ADJUST_CFA_OFFSET 4 SAVE_ALL - movl %cr0, %eax + GET_CR0_INTO_EAX testl $0x4, %eax # EM (math emulation bit) jne device_not_available_emulate preempt_stop @@ -702,9 +712,15 @@ jne ok; \ label: \ movl TSS_sysenter_esp0+offset(%esp),%esp; \ + CFI_DEF_CFA esp, 0; \ + CFI_UNDEFINED eip; \ pushfl; \ + CFI_ADJUST_CFA_OFFSET 4; \ pushl $__KERNEL_CS; \ - pushl $sysenter_past_esp + CFI_ADJUST_CFA_OFFSET 4; \ + pushl $sysenter_past_esp; \ + CFI_ADJUST_CFA_OFFSET 4; \ + CFI_REL_OFFSET eip, 0 KPROBE_ENTRY(debug) RING0_INT_FRAME @@ -720,7 +736,8 @@ call do_debug jmp ret_from_exception CFI_ENDPROC - .previous .text +KPROBE_END(debug) + /* * NMI is doubly nasty. It can happen _while_ we're handling * a debug fault, and the debug fault hasn't yet been able to @@ -729,7 +746,7 @@ * check whether we got an NMI on the debug path where the debug * fault happened on the sysenter path. */ -ENTRY(nmi) +KPROBE_ENTRY(nmi) RING0_INT_FRAME pushl %eax CFI_ADJUST_CFA_OFFSET 4 @@ -754,6 +771,7 @@ cmpl $sysenter_entry,12(%esp) je nmi_debug_stack_check nmi_stack_correct: + /* We have a RING0_INT_FRAME here */ pushl %eax CFI_ADJUST_CFA_OFFSET 4 SAVE_ALL @@ -764,9 +782,12 @@ CFI_ENDPROC nmi_stack_fixup: + RING0_INT_FRAME FIX_STACK(12,nmi_stack_correct, 1) jmp nmi_stack_correct + nmi_debug_stack_check: + /* We have a RING0_INT_FRAME here */ cmpw $__KERNEL_CS,16(%esp) jne nmi_stack_correct cmpl $debug,(%esp) @@ -777,8 +798,10 @@ jmp nmi_stack_correct nmi_16bit_stack: - RING0_INT_FRAME - /* create the pointer to lss back */ + /* We have a RING0_INT_FRAME here. + * + * create the pointer to lss back + */ pushl %ss CFI_ADJUST_CFA_OFFSET 4 pushl %esp @@ -799,12 +822,13 @@ call do_nmi RESTORE_REGS lss 12+4(%esp), %esp # back to 16bit stack -1: iret +1: INTERRUPT_RETURN CFI_ENDPROC .section __ex_table,"a" .align 4 .long 1b,iret_exc .previous +KPROBE_END(nmi) KPROBE_ENTRY(int3) RING0_INT_FRAME @@ -816,7 +840,7 @@ call do_int3 jmp ret_from_exception CFI_ENDPROC - .previous .text +KPROBE_END(int3) ENTRY(overflow) RING0_INT_FRAME @@ -881,7 +905,7 @@ CFI_ADJUST_CFA_OFFSET 4 jmp error_code CFI_ENDPROC - .previous .text +KPROBE_END(general_protection) ENTRY(alignment_check) RING0_EC_FRAME @@ -890,13 +914,14 @@ jmp error_code CFI_ENDPROC -KPROBE_ENTRY(page_fault) - RING0_EC_FRAME - pushl $do_page_fault +ENTRY(divide_error) + RING0_INT_FRAME + pushl $0 # no error code + CFI_ADJUST_CFA_OFFSET 4 + pushl $do_divide_error CFI_ADJUST_CFA_OFFSET 4 jmp error_code CFI_ENDPROC - .previous .text #ifdef CONFIG_X86_MCE ENTRY(machine_check) @@ -949,6 +974,19 @@ ENDPROC(arch_unwind_init_running) #endif +ENTRY(kernel_thread_helper) + pushl $0 # fake return address for unwinder + CFI_STARTPROC + movl %edx,%eax + push %edx + CFI_ADJUST_CFA_OFFSET 4 + call *%ebx + push %eax + CFI_ADJUST_CFA_OFFSET 4 + call do_exit + CFI_ENDPROC +ENDPROC(kernel_thread_helper) + .section .rodata,"a" #include "syscall_table.S"
diff --git a/arch/i386/kernel/head.S b/arch/i386/kernel/head.S index a6b8bd8..be9d883 100644 --- a/arch/i386/kernel/head.S +++ b/arch/i386/kernel/head.S
@@ -371,8 +371,65 @@ addl $8,%edi dec %ecx jne rp_sidt + +.macro set_early_handler handler,trapno + lea \handler,%edx + movl $(__KERNEL_CS << 16),%eax + movw %dx,%ax + movw $0x8E00,%dx /* interrupt gate - dpl=0, present */ + lea idt_table,%edi + movl %eax,8*\trapno(%edi) + movl %edx,8*\trapno+4(%edi) +.endm + + set_early_handler handler=early_divide_err,trapno=0 + set_early_handler handler=early_illegal_opcode,trapno=6 + set_early_handler handler=early_protection_fault,trapno=13 + set_early_handler handler=early_page_fault,trapno=14 + ret +early_divide_err: + xor %edx,%edx + pushl $0 /* fake errcode */ + jmp early_fault + +early_illegal_opcode: + movl $6,%edx + pushl $0 /* fake errcode */ + jmp early_fault + +early_protection_fault: + movl $13,%edx + jmp early_fault + +early_page_fault: + movl $14,%edx + jmp early_fault + +early_fault: + cld +#ifdef CONFIG_PRINTK + movl $(__KERNEL_DS),%eax + movl %eax,%ds + movl %eax,%es + cmpl $2,early_recursion_flag + je hlt_loop + incl early_recursion_flag + movl %cr2,%eax + pushl %eax + pushl %edx /* trapno */ + pushl $fault_msg +#ifdef CONFIG_EARLY_PRINTK + call early_printk +#else + call printk +#endif +#endif +hlt_loop: + hlt + jmp hlt_loop + /* This is the default interrupt "handler" :-) */ ALIGN ignore_int: @@ -386,6 +443,9 @@ movl $(__KERNEL_DS),%eax movl %eax,%ds movl %eax,%es + cmpl $2,early_recursion_flag + je hlt_loop + incl early_recursion_flag pushl 16(%esp) pushl 24(%esp) pushl 32(%esp) @@ -431,9 +491,16 @@ ready: .byte 0 +early_recursion_flag: + .long 0 + int_msg: .asciz "Unknown interrupt or fault at EIP %p %p %p\n" +fault_msg: + .ascii "Int %d: CR2 %p err %p EIP %p CS %p flags %p\n" + .asciz "Stack: %p %p %p %p %p %p %p %p\n" + /* * The IDT and GDT 'descriptors' are a strange 48-bit object * only used by the lidt and lgdt instructions. They are not
diff --git a/arch/i386/kernel/i8259.c b/arch/i386/kernel/i8259.c index d4756d1..ea5f4e7 100644 --- a/arch/i386/kernel/i8259.c +++ b/arch/i386/kernel/i8259.c
@@ -45,6 +45,8 @@ #define shutdown_8259A_irq disable_8259A_irq +static int i8259A_auto_eoi; + static void mask_and_ack_8259A(unsigned int); unsigned int startup_8259A_irq(unsigned int irq) @@ -253,7 +255,7 @@ static int i8259A_resume(struct sys_device *dev) { - init_8259A(0); + init_8259A(i8259A_auto_eoi); restore_ELCR(irq_trigger); return 0; } @@ -301,6 +303,8 @@ { unsigned long flags; + i8259A_auto_eoi = auto_eoi; + spin_lock_irqsave(&i8259A_lock, flags); outb(0xff, PIC_MASTER_IMR); /* mask all of 8259A-1 */
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c index 4fb32c5..fd0df75 100644 --- a/arch/i386/kernel/io_apic.c +++ b/arch/i386/kernel/io_apic.c
@@ -40,6 +40,7 @@ #include <asm/nmi.h> #include <mach_apic.h> +#include <mach_apicdef.h> #include "io_ports.h" @@ -65,7 +66,7 @@ */ int nr_ioapic_registers[MAX_IO_APICS]; -int disable_timer_pin_1 __initdata; +static int disable_timer_pin_1 __initdata; /* * Rough estimation of how many shared IRQs there are, can @@ -93,6 +94,34 @@ #define vector_to_irq(vector) (vector) #endif + +union entry_union { + struct { u32 w1, w2; }; + struct IO_APIC_route_entry entry; +}; + +static struct IO_APIC_route_entry ioapic_read_entry(int apic, int pin) +{ + union entry_union eu; + unsigned long flags; + spin_lock_irqsave(&ioapic_lock, flags); + eu.w1 = io_apic_read(apic, 0x10 + 2 * pin); + eu.w2 = io_apic_read(apic, 0x11 + 2 * pin); + spin_unlock_irqrestore(&ioapic_lock, flags); + return eu.entry; +} + +static void ioapic_write_entry(int apic, int pin, struct IO_APIC_route_entry e) +{ + unsigned long flags; + union entry_union eu; + eu.entry = e; + spin_lock_irqsave(&ioapic_lock, flags); + io_apic_write(apic, 0x10 + 2*pin, eu.w1); + io_apic_write(apic, 0x11 + 2*pin, eu.w2); + spin_unlock_irqrestore(&ioapic_lock, flags); +} + /* * The common case is 1:1 IRQ<->pin mappings. Sometimes there are * shared ISA-space IRQs, so we have to support them. We are super @@ -200,13 +229,9 @@ static void clear_IO_APIC_pin(unsigned int apic, unsigned int pin) { struct IO_APIC_route_entry entry; - unsigned long flags; /* Check delivery_mode to be sure we're not clearing an SMI pin */ - spin_lock_irqsave(&ioapic_lock, flags); - *(((int*)&entry) + 0) = io_apic_read(apic, 0x10 + 2 * pin); - *(((int*)&entry) + 1) = io_apic_read(apic, 0x11 + 2 * pin); - spin_unlock_irqrestore(&ioapic_lock, flags); + entry = ioapic_read_entry(apic, pin); if (entry.delivery_mode == dest_SMI) return; @@ -215,10 +240,7 @@ */ memset(&entry, 0, sizeof(entry)); entry.mask = 1; - spin_lock_irqsave(&ioapic_lock, flags); - io_apic_write(apic, 0x10 + 2 * pin, *(((int *)&entry) + 0)); - io_apic_write(apic, 0x11 + 2 * pin, *(((int *)&entry) + 1)); - spin_unlock_irqrestore(&ioapic_lock, flags); + ioapic_write_entry(apic, pin, entry); } static void clear_IO_APIC (void) @@ -1283,9 +1305,8 @@ if (!apic && (irq < 16)) disable_8259A_irq(irq); } + ioapic_write_entry(apic, pin, entry); spin_lock_irqsave(&ioapic_lock, flags); - io_apic_write(apic, 0x11+2*pin, *(((int *)&entry)+1)); - io_apic_write(apic, 0x10+2*pin, *(((int *)&entry)+0)); set_native_irq_info(irq, TARGET_CPUS); spin_unlock_irqrestore(&ioapic_lock, flags); } @@ -1301,7 +1322,6 @@ static void __init setup_ExtINT_IRQ0_pin(unsigned int apic, unsigned int pin, int vector) { struct IO_APIC_route_entry entry; - unsigned long flags; memset(&entry,0,sizeof(entry)); @@ -1331,10 +1351,7 @@ /* * Add it to the IO-APIC irq-routing table: */ - spin_lock_irqsave(&ioapic_lock, flags); - io_apic_write(apic, 0x11+2*pin, *(((int *)&entry)+1)); - io_apic_write(apic, 0x10+2*pin, *(((int *)&entry)+0)); - spin_unlock_irqrestore(&ioapic_lock, flags); + ioapic_write_entry(apic, pin, entry); enable_8259A_irq(0); } @@ -1444,10 +1461,7 @@ for (i = 0; i <= reg_01.bits.entries; i++) { struct IO_APIC_route_entry entry; - spin_lock_irqsave(&ioapic_lock, flags); - *(((int *)&entry)+0) = io_apic_read(apic, 0x10+i*2); - *(((int *)&entry)+1) = io_apic_read(apic, 0x11+i*2); - spin_unlock_irqrestore(&ioapic_lock, flags); + entry = ioapic_read_entry(apic, i); printk(KERN_DEBUG " %02x %03X %02X ", i, @@ -1666,10 +1680,7 @@ /* See if any of the pins is in ExtINT mode */ for (pin = 0; pin < nr_ioapic_registers[apic]; pin++) { struct IO_APIC_route_entry entry; - spin_lock_irqsave(&ioapic_lock, flags); - *(((int *)&entry) + 0) = io_apic_read(apic, 0x10 + 2 * pin); - *(((int *)&entry) + 1) = io_apic_read(apic, 0x11 + 2 * pin); - spin_unlock_irqrestore(&ioapic_lock, flags); + entry = ioapic_read_entry(apic, pin); /* If the interrupt line is enabled and in ExtInt mode @@ -1726,7 +1737,6 @@ */ if (ioapic_i8259.pin != -1) { struct IO_APIC_route_entry entry; - unsigned long flags; memset(&entry, 0, sizeof(entry)); entry.mask = 0; /* Enabled */ @@ -1743,12 +1753,7 @@ /* * Add it to the IO-APIC irq-routing table: */ - spin_lock_irqsave(&ioapic_lock, flags); - io_apic_write(ioapic_i8259.apic, 0x11+2*ioapic_i8259.pin, - *(((int *)&entry)+1)); - io_apic_write(ioapic_i8259.apic, 0x10+2*ioapic_i8259.pin, - *(((int *)&entry)+0)); - spin_unlock_irqrestore(&ioapic_lock, flags); + ioapic_write_entry(ioapic_i8259.apic, ioapic_i8259.pin, entry); } disconnect_bsp_APIC(ioapic_i8259.pin != -1); } @@ -2213,17 +2218,13 @@ int apic, pin, i; struct IO_APIC_route_entry entry0, entry1; unsigned char save_control, save_freq_select; - unsigned long flags; pin = find_isa_irq_pin(8, mp_INT); apic = find_isa_irq_apic(8, mp_INT); if (pin == -1) return; - spin_lock_irqsave(&ioapic_lock, flags); - *(((int *)&entry0) + 1) = io_apic_read(apic, 0x11 + 2 * pin); - *(((int *)&entry0) + 0) = io_apic_read(apic, 0x10 + 2 * pin); - spin_unlock_irqrestore(&ioapic_lock, flags); + entry0 = ioapic_read_entry(apic, pin); clear_IO_APIC_pin(apic, pin); memset(&entry1, 0, sizeof(entry1)); @@ -2236,10 +2237,7 @@ entry1.trigger = 0; entry1.vector = 0; - spin_lock_irqsave(&ioapic_lock, flags); - io_apic_write(apic, 0x11 + 2 * pin, *(((int *)&entry1) + 1)); - io_apic_write(apic, 0x10 + 2 * pin, *(((int *)&entry1) + 0)); - spin_unlock_irqrestore(&ioapic_lock, flags); + ioapic_write_entry(apic, pin, entry1); save_control = CMOS_READ(RTC_CONTROL); save_freq_select = CMOS_READ(RTC_FREQ_SELECT); @@ -2258,10 +2256,7 @@ CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT); clear_IO_APIC_pin(apic, pin); - spin_lock_irqsave(&ioapic_lock, flags); - io_apic_write(apic, 0x11 + 2 * pin, *(((int *)&entry0) + 1)); - io_apic_write(apic, 0x10 + 2 * pin, *(((int *)&entry0) + 0)); - spin_unlock_irqrestore(&ioapic_lock, flags); + ioapic_write_entry(apic, pin, entry0); } int timer_uses_ioapic_pin_0; @@ -2461,17 +2456,12 @@ { struct IO_APIC_route_entry *entry; struct sysfs_ioapic_data *data; - unsigned long flags; int i; data = container_of(dev, struct sysfs_ioapic_data, dev); entry = data->entry; - spin_lock_irqsave(&ioapic_lock, flags); - for (i = 0; i < nr_ioapic_registers[dev->id]; i ++, entry ++ ) { - *(((int *)entry) + 1) = io_apic_read(dev->id, 0x11 + 2 * i); - *(((int *)entry) + 0) = io_apic_read(dev->id, 0x10 + 2 * i); - } - spin_unlock_irqrestore(&ioapic_lock, flags); + for (i = 0; i < nr_ioapic_registers[dev->id]; i ++) + entry[i] = ioapic_read_entry(dev->id, i); return 0; } @@ -2493,11 +2483,9 @@ reg_00.bits.ID = mp_ioapics[dev->id].mpc_apicid; io_apic_write(dev->id, 0, reg_00.raw); } - for (i = 0; i < nr_ioapic_registers[dev->id]; i ++, entry ++ ) { - io_apic_write(dev->id, 0x11+2*i, *(((int *)entry)+1)); - io_apic_write(dev->id, 0x10+2*i, *(((int *)entry)+0)); - } spin_unlock_irqrestore(&ioapic_lock, flags); + for (i = 0; i < nr_ioapic_registers[dev->id]; i ++) + ioapic_write_entry(dev->id, i, entry[i]); return 0; } @@ -2694,9 +2682,8 @@ if (!ioapic && (irq < 16)) disable_8259A_irq(irq); + ioapic_write_entry(ioapic, pin, entry); spin_lock_irqsave(&ioapic_lock, flags); - io_apic_write(ioapic, 0x11+2*pin, *(((int *)&entry)+1)); - io_apic_write(ioapic, 0x10+2*pin, *(((int *)&entry)+0)); set_native_irq_info(use_pci_vector() ? entry.vector : irq, TARGET_CPUS); spin_unlock_irqrestore(&ioapic_lock, flags); @@ -2704,3 +2691,25 @@ } #endif /* CONFIG_ACPI */ + +static int __init parse_disable_timer_pin_1(char *arg) +{ + disable_timer_pin_1 = 1; + return 0; +} +early_param("disable_timer_pin_1", parse_disable_timer_pin_1); + +static int __init parse_enable_timer_pin_1(char *arg) +{ + disable_timer_pin_1 = -1; + return 0; +} +early_param("enable_timer_pin_1", parse_enable_timer_pin_1); + +static int __init parse_noapic(char *arg) +{ + /* disable IO-APIC */ + disable_ioapic_setup(); + return 0; +} +early_param("noapic", parse_noapic);
diff --git a/arch/i386/kernel/machine_kexec.c b/arch/i386/kernel/machine_kexec.c index 6b1ae6b..91966ba 100644 --- a/arch/i386/kernel/machine_kexec.c +++ b/arch/i386/kernel/machine_kexec.c
@@ -9,6 +9,7 @@ #include <linux/mm.h> #include <linux/kexec.h> #include <linux/delay.h> +#include <linux/init.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/tlbflush.h> @@ -20,70 +21,13 @@ #include <asm/system.h> #define PAGE_ALIGNED __attribute__ ((__aligned__(PAGE_SIZE))) - -#define L0_ATTR (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) -#define L1_ATTR (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) -#define L2_ATTR (_PAGE_PRESENT) - -#define LEVEL0_SIZE (1UL << 12UL) - -#ifndef CONFIG_X86_PAE -#define LEVEL1_SIZE (1UL << 22UL) -static u32 pgtable_level1[1024] PAGE_ALIGNED; - -static void identity_map_page(unsigned long address) -{ - unsigned long level1_index, level2_index; - u32 *pgtable_level2; - - /* Find the current page table */ - pgtable_level2 = __va(read_cr3()); - - /* Find the indexes of the physical address to identity map */ - level1_index = (address % LEVEL1_SIZE)/LEVEL0_SIZE; - level2_index = address / LEVEL1_SIZE; - - /* Identity map the page table entry */ - pgtable_level1[level1_index] = address | L0_ATTR; - pgtable_level2[level2_index] = __pa(pgtable_level1) | L1_ATTR; - - /* Flush the tlb so the new mapping takes effect. - * Global tlb entries are not flushed but that is not an issue. - */ - load_cr3(pgtable_level2); -} - -#else -#define LEVEL1_SIZE (1UL << 21UL) -#define LEVEL2_SIZE (1UL << 30UL) -static u64 pgtable_level1[512] PAGE_ALIGNED; -static u64 pgtable_level2[512] PAGE_ALIGNED; - -static void identity_map_page(unsigned long address) -{ - unsigned long level1_index, level2_index, level3_index; - u64 *pgtable_level3; - - /* Find the current page table */ - pgtable_level3 = __va(read_cr3()); - - /* Find the indexes of the physical address to identity map */ - level1_index = (address % LEVEL1_SIZE)/LEVEL0_SIZE; - level2_index = (address % LEVEL2_SIZE)/LEVEL1_SIZE; - level3_index = address / LEVEL2_SIZE; - - /* Identity map the page table entry */ - pgtable_level1[level1_index] = address | L0_ATTR; - pgtable_level2[level2_index] = __pa(pgtable_level1) | L1_ATTR; - set_64bit(&pgtable_level3[level3_index], - __pa(pgtable_level2) | L2_ATTR); - - /* Flush the tlb so the new mapping takes effect. - * Global tlb entries are not flushed but that is not an issue. - */ - load_cr3(pgtable_level3); -} +static u32 kexec_pgd[1024] PAGE_ALIGNED; +#ifdef CONFIG_X86_PAE +static u32 kexec_pmd0[1024] PAGE_ALIGNED; +static u32 kexec_pmd1[1024] PAGE_ALIGNED; #endif +static u32 kexec_pte0[1024] PAGE_ALIGNED; +static u32 kexec_pte1[1024] PAGE_ALIGNED; static void set_idt(void *newidt, __u16 limit) { @@ -127,16 +71,6 @@ #undef __STR } -typedef asmlinkage NORET_TYPE void (*relocate_new_kernel_t)( - unsigned long indirection_page, - unsigned long reboot_code_buffer, - unsigned long start_address, - unsigned int has_pae) ATTRIB_NORET; - -extern const unsigned char relocate_new_kernel[]; -extern void relocate_new_kernel_end(void); -extern const unsigned int relocate_new_kernel_size; - /* * A architecture hook called to validate the * proposed image and prepare the control pages @@ -169,25 +103,29 @@ */ NORET_TYPE void machine_kexec(struct kimage *image) { - unsigned long page_list; - unsigned long reboot_code_buffer; - - relocate_new_kernel_t rnk; + unsigned long page_list[PAGES_NR]; + void *control_page; /* Interrupts aren't acceptable while we reboot */ local_irq_disable(); - /* Compute some offsets */ - reboot_code_buffer = page_to_pfn(image->control_code_page) - << PAGE_SHIFT; - page_list = image->head; + control_page = page_address(image->control_code_page); + memcpy(control_page, relocate_kernel, PAGE_SIZE); - /* Set up an identity mapping for the reboot_code_buffer */ - identity_map_page(reboot_code_buffer); - - /* copy it out */ - memcpy((void *)reboot_code_buffer, relocate_new_kernel, - relocate_new_kernel_size); + page_list[PA_CONTROL_PAGE] = __pa(control_page); + page_list[VA_CONTROL_PAGE] = (unsigned long)relocate_kernel; + page_list[PA_PGD] = __pa(kexec_pgd); + page_list[VA_PGD] = (unsigned long)kexec_pgd; +#ifdef CONFIG_X86_PAE + page_list[PA_PMD_0] = __pa(kexec_pmd0); + page_list[VA_PMD_0] = (unsigned long)kexec_pmd0; + page_list[PA_PMD_1] = __pa(kexec_pmd1); + page_list[VA_PMD_1] = (unsigned long)kexec_pmd1; +#endif + page_list[PA_PTE_0] = __pa(kexec_pte0); + page_list[VA_PTE_0] = (unsigned long)kexec_pte0; + page_list[PA_PTE_1] = __pa(kexec_pte1); + page_list[VA_PTE_1] = (unsigned long)kexec_pte1; /* The segment registers are funny things, they have both a * visible and an invisible part. Whenever the visible part is @@ -206,6 +144,28 @@ set_idt(phys_to_virt(0),0); /* now call it */ - rnk = (relocate_new_kernel_t) reboot_code_buffer; - (*rnk)(page_list, reboot_code_buffer, image->start, cpu_has_pae); + relocate_kernel((unsigned long)image->head, (unsigned long)page_list, + image->start, cpu_has_pae); } + +/* crashkernel=size@addr specifies the location to reserve for + * a crash kernel. By reserving this memory we guarantee + * that linux never sets it up as a DMA target. + * Useful for holding code to do something appropriate + * after a kernel panic. + */ +static int __init parse_crashkernel(char *arg) +{ + unsigned long size, base; + size = memparse(arg, &arg); + if (*arg == '@') { + base = memparse(arg+1, &arg); + /* FIXME: Do I want a sanity check + * to validate the memory range? + */ + crashk_res.start = base; + crashk_res.end = base + size - 1; + } + return 0; +} +early_param("crashkernel", parse_crashkernel);
diff --git a/arch/i386/kernel/mca.c b/arch/i386/kernel/mca.c index cd5456f..eb57a85 100644 --- a/arch/i386/kernel/mca.c +++ b/arch/i386/kernel/mca.c
@@ -42,6 +42,7 @@ #include <linux/errno.h> #include <linux/kernel.h> #include <linux/mca.h> +#include <linux/kprobes.h> #include <asm/system.h> #include <asm/io.h> #include <linux/proc_fs.h> @@ -414,7 +415,8 @@ /*--------------------------------------------------------------------*/ -static void mca_handle_nmi_device(struct mca_device *mca_dev, int check_flag) +static __kprobes void +mca_handle_nmi_device(struct mca_device *mca_dev, int check_flag) { int slot = mca_dev->slot; @@ -444,7 +446,7 @@ /*--------------------------------------------------------------------*/ -static int mca_handle_nmi_callback(struct device *dev, void *data) +static int __kprobes mca_handle_nmi_callback(struct device *dev, void *data) { struct mca_device *mca_dev = to_mca_device(dev); unsigned char pos5; @@ -462,7 +464,7 @@ return 0; } -void mca_handle_nmi(void) +void __kprobes mca_handle_nmi(void) { /* First try - scan the various adapters and see if a specific * adapter was responsible for the error.
diff --git a/arch/i386/kernel/microcode.c b/arch/i386/kernel/microcode.c index 40b44cc..9b94797 100644 --- a/arch/i386/kernel/microcode.c +++ b/arch/i386/kernel/microcode.c
@@ -2,6 +2,7 @@ * Intel CPU Microcode Update Driver for Linux * * Copyright (C) 2000-2004 Tigran Aivazian + * 2006 Shaohua Li <shaohua.li@intel.com> * * This driver allows to upgrade microcode on Intel processors * belonging to IA-32 family - PentiumPro, Pentium II, @@ -82,6 +83,9 @@ #include <linux/spinlock.h> #include <linux/mm.h> #include <linux/mutex.h> +#include <linux/cpu.h> +#include <linux/firmware.h> +#include <linux/platform_device.h> #include <asm/msr.h> #include <asm/uaccess.h> @@ -91,9 +95,6 @@ MODULE_AUTHOR("Tigran Aivazian <tigran@veritas.com>"); MODULE_LICENSE("GPL"); -static int verbose; -module_param(verbose, int, 0644); - #define MICROCODE_VERSION "1.14a" #define DEFAULT_UCODE_DATASIZE (2000) /* 2000 bytes */ @@ -120,55 +121,40 @@ /* no concurrent ->write()s are allowed on /dev/cpu/microcode */ static DEFINE_MUTEX(microcode_mutex); -static void __user *user_buffer; /* user area microcode data buffer */ -static unsigned int user_buffer_size; /* it's size */ - -typedef enum mc_error_code { - MC_SUCCESS = 0, - MC_IGNORED = 1, - MC_NOTFOUND = 2, - MC_MARKED = 3, - MC_ALLOCATED = 4, -} mc_error_code_t; - static struct ucode_cpu_info { + int valid; unsigned int sig; - unsigned int pf, orig_pf; + unsigned int pf; unsigned int rev; - unsigned int cksum; - mc_error_code_t err; microcode_t *mc; } ucode_cpu_info[NR_CPUS]; - -static int microcode_open (struct inode *unused1, struct file *unused2) -{ - return capable(CAP_SYS_RAWIO) ? 0 : -EPERM; -} -static void collect_cpu_info (void *unused) +static void collect_cpu_info(int cpu_num) { - int cpu_num = smp_processor_id(); struct cpuinfo_x86 *c = cpu_data + cpu_num; struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num; unsigned int val[2]; - uci->sig = uci->pf = uci->rev = uci->cksum = 0; - uci->err = MC_NOTFOUND; + /* We should bind the task to the CPU */ + BUG_ON(raw_smp_processor_id() != cpu_num); + uci->pf = uci->rev = 0; uci->mc = NULL; + uci->valid = 1; if (c->x86_vendor != X86_VENDOR_INTEL || c->x86 < 6 || cpu_has(c, X86_FEATURE_IA64)) { - printk(KERN_ERR "microcode: CPU%d not a capable Intel processor\n", cpu_num); + printk(KERN_ERR "microcode: CPU%d not a capable Intel " + "processor\n", cpu_num); + uci->valid = 0; return; - } else { - uci->sig = cpuid_eax(0x00000001); + } - if ((c->x86_model >= 5) || (c->x86 > 6)) { - /* get processor flags from MSR 0x17 */ - rdmsr(MSR_IA32_PLATFORM_ID, val[0], val[1]); - uci->pf = 1 << ((val[1] >> 18) & 7); - } - uci->orig_pf = uci->pf; + uci->sig = cpuid_eax(0x00000001); + + if ((c->x86_model >= 5) || (c->x86 > 6)) { + /* get processor flags from MSR 0x17 */ + rdmsr(MSR_IA32_PLATFORM_ID, val[0], val[1]); + uci->pf = 1 << ((val[1] >> 18) & 7); } wrmsr(MSR_IA32_UCODE_REV, 0, 0); @@ -180,218 +166,159 @@ uci->sig, uci->pf, uci->rev); } -static inline void mark_microcode_update (int cpu_num, microcode_header_t *mc_header, int sig, int pf, int cksum) +static inline int microcode_update_match(int cpu_num, + microcode_header_t *mc_header, int sig, int pf) { struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num; - pr_debug("Microcode Found.\n"); - pr_debug(" Header Revision 0x%x\n", mc_header->hdrver); - pr_debug(" Loader Revision 0x%x\n", mc_header->ldrver); - pr_debug(" Revision 0x%x \n", mc_header->rev); - pr_debug(" Date %x/%x/%x\n", - ((mc_header->date >> 24 ) & 0xff), - ((mc_header->date >> 16 ) & 0xff), - (mc_header->date & 0xFFFF)); - pr_debug(" Signature 0x%x\n", sig); - pr_debug(" Type 0x%x Family 0x%x Model 0x%x Stepping 0x%x\n", - ((sig >> 12) & 0x3), - ((sig >> 8) & 0xf), - ((sig >> 4) & 0xf), - ((sig & 0xf))); - pr_debug(" Processor Flags 0x%x\n", pf); - pr_debug(" Checksum 0x%x\n", cksum); + if (!sigmatch(sig, uci->sig, pf, uci->pf) + || mc_header->rev <= uci->rev) + return 0; + return 1; +} - if (mc_header->rev < uci->rev) { - if (uci->err == MC_NOTFOUND) { - uci->err = MC_IGNORED; - uci->cksum = mc_header->rev; - } else if (uci->err == MC_IGNORED && uci->cksum < mc_header->rev) - uci->cksum = mc_header->rev; - } else if (mc_header->rev == uci->rev) { - if (uci->err < MC_MARKED) { - /* notify the caller of success on this cpu */ - uci->err = MC_SUCCESS; +static int microcode_sanity_check(void *mc) +{ + microcode_header_t *mc_header = mc; + struct extended_sigtable *ext_header = NULL; + struct extended_signature *ext_sig; + unsigned long total_size, data_size, ext_table_size; + int sum, orig_sum, ext_sigcount = 0, i; + + total_size = get_totalsize(mc_header); + data_size = get_datasize(mc_header); + if (data_size + MC_HEADER_SIZE > total_size) { + printk(KERN_ERR "microcode: error! " + "Bad data size in microcode data file\n"); + return -EINVAL; + } + + if (mc_header->ldrver != 1 || mc_header->hdrver != 1) { + printk(KERN_ERR "microcode: error! " + "Unknown microcode update format\n"); + return -EINVAL; + } + ext_table_size = total_size - (MC_HEADER_SIZE + data_size); + if (ext_table_size) { + if ((ext_table_size < EXT_HEADER_SIZE) + || ((ext_table_size - EXT_HEADER_SIZE) % EXT_SIGNATURE_SIZE)) { + printk(KERN_ERR "microcode: error! " + "Small exttable size in microcode data file\n"); + return -EINVAL; } - } else if (uci->err != MC_ALLOCATED || mc_header->rev > uci->mc->hdr.rev) { - pr_debug("microcode: CPU%d found a matching microcode update with " - " revision 0x%x (current=0x%x)\n", cpu_num, mc_header->rev, uci->rev); - uci->cksum = cksum; - uci->pf = pf; /* keep the original mc pf for cksum calculation */ - uci->err = MC_MARKED; /* found the match */ - for_each_online_cpu(cpu_num) { - if (ucode_cpu_info + cpu_num != uci - && ucode_cpu_info[cpu_num].mc == uci->mc) { - uci->mc = NULL; - break; - } + ext_header = mc + MC_HEADER_SIZE + data_size; + if (ext_table_size != exttable_size(ext_header)) { + printk(KERN_ERR "microcode: error! " + "Bad exttable size in microcode data file\n"); + return -EFAULT; } - if (uci->mc != NULL) { - vfree(uci->mc); - uci->mc = NULL; + ext_sigcount = ext_header->count; + } + + /* check extended table checksum */ + if (ext_table_size) { + int ext_table_sum = 0; + int *ext_tablep = (int *)ext_header; + + i = ext_table_size / DWSIZE; + while (i--) + ext_table_sum += ext_tablep[i]; + if (ext_table_sum) { + printk(KERN_WARNING "microcode: aborting, " + "bad extended signature table checksum\n"); + return -EINVAL; } } - return; + + /* calculate the checksum */ + orig_sum = 0; + i = (MC_HEADER_SIZE + data_size) / DWSIZE; + while (i--) + orig_sum += ((int *)mc)[i]; + if (orig_sum) { + printk(KERN_ERR "microcode: aborting, bad checksum\n"); + return -EINVAL; + } + if (!ext_table_size) + return 0; + /* check extended signature checksum */ + for (i = 0; i < ext_sigcount; i++) { + ext_sig = (struct extended_signature *)((void *)ext_header + + EXT_HEADER_SIZE + EXT_SIGNATURE_SIZE * i); + sum = orig_sum + - (mc_header->sig + mc_header->pf + mc_header->cksum) + + (ext_sig->sig + ext_sig->pf + ext_sig->cksum); + if (sum) { + printk(KERN_ERR "microcode: aborting, bad checksum\n"); + return -EINVAL; + } + } + return 0; } -static int find_matching_ucodes (void) +/* + * return 0 - no update found + * return 1 - found update + * return < 0 - error + */ +static int get_maching_microcode(void *mc, int cpu) { - int cursor = 0; - int error = 0; + struct ucode_cpu_info *uci = ucode_cpu_info + cpu; + microcode_header_t *mc_header = mc; + struct extended_sigtable *ext_header; + unsigned long total_size = get_totalsize(mc_header); + int ext_sigcount, i; + struct extended_signature *ext_sig; + void *new_mc; - while (cursor + MC_HEADER_SIZE < user_buffer_size) { - microcode_header_t mc_header; - void *newmc = NULL; - int i, sum, cpu_num, allocated_flag, total_size, data_size, ext_table_size; + if (microcode_update_match(cpu, mc_header, + mc_header->sig, mc_header->pf)) + goto find; - if (copy_from_user(&mc_header, user_buffer + cursor, MC_HEADER_SIZE)) { - printk(KERN_ERR "microcode: error! Can not read user data\n"); - error = -EFAULT; - goto out; - } + if (total_size <= get_datasize(mc_header) + MC_HEADER_SIZE) + return 0; - total_size = get_totalsize(&mc_header); - if ((cursor + total_size > user_buffer_size) || (total_size < DEFAULT_UCODE_TOTALSIZE)) { - printk(KERN_ERR "microcode: error! Bad data in microcode data file\n"); - error = -EINVAL; - goto out; - } + ext_header = (struct extended_sigtable *)(mc + + get_datasize(mc_header) + MC_HEADER_SIZE); + ext_sigcount = ext_header->count; + ext_sig = (struct extended_signature *)((void *)ext_header + + EXT_HEADER_SIZE); + for (i = 0; i < ext_sigcount; i++) { + if (microcode_update_match(cpu, mc_header, + ext_sig->sig, ext_sig->pf)) + goto find; + ext_sig++; + } + return 0; +find: + pr_debug("microcode: CPU %d found a matching microcode update with" + " version 0x%x (current=0x%x)\n", cpu, mc_header->rev,uci->rev); + new_mc = vmalloc(total_size); + if (!new_mc) { + printk(KERN_ERR "microcode: error! Can not allocate memory\n"); + return -ENOMEM; + } - data_size = get_datasize(&mc_header); - if ((data_size + MC_HEADER_SIZE > total_size) || (data_size < DEFAULT_UCODE_DATASIZE)) { - printk(KERN_ERR "microcode: error! Bad data in microcode data file\n"); - error = -EINVAL; - goto out; - } + /* free previous update file */ + vfree(uci->mc); - if (mc_header.ldrver != 1 || mc_header.hdrver != 1) { - printk(KERN_ERR "microcode: error! Unknown microcode update format\n"); - error = -EINVAL; - goto out; - } - - for_each_online_cpu(cpu_num) { - struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num; - - if (sigmatch(mc_header.sig, uci->sig, mc_header.pf, uci->orig_pf)) - mark_microcode_update(cpu_num, &mc_header, mc_header.sig, mc_header.pf, mc_header.cksum); - } - - ext_table_size = total_size - (MC_HEADER_SIZE + data_size); - if (ext_table_size) { - struct extended_sigtable ext_header; - struct extended_signature ext_sig; - int ext_sigcount; - - if ((ext_table_size < EXT_HEADER_SIZE) - || ((ext_table_size - EXT_HEADER_SIZE) % EXT_SIGNATURE_SIZE)) { - printk(KERN_ERR "microcode: error! Bad data in microcode data file\n"); - error = -EINVAL; - goto out; - } - if (copy_from_user(&ext_header, user_buffer + cursor - + MC_HEADER_SIZE + data_size, EXT_HEADER_SIZE)) { - printk(KERN_ERR "microcode: error! Can not read user data\n"); - error = -EFAULT; - goto out; - } - if (ext_table_size != exttable_size(&ext_header)) { - printk(KERN_ERR "microcode: error! Bad data in microcode data file\n"); - error = -EFAULT; - goto out; - } - - ext_sigcount = ext_header.count; - - for (i = 0; i < ext_sigcount; i++) { - if (copy_from_user(&ext_sig, user_buffer + cursor + MC_HEADER_SIZE + data_size + EXT_HEADER_SIZE - + EXT_SIGNATURE_SIZE * i, EXT_SIGNATURE_SIZE)) { - printk(KERN_ERR "microcode: error! Can not read user data\n"); - error = -EFAULT; - goto out; - } - for_each_online_cpu(cpu_num) { - struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num; - - if (sigmatch(ext_sig.sig, uci->sig, ext_sig.pf, uci->orig_pf)) { - mark_microcode_update(cpu_num, &mc_header, ext_sig.sig, ext_sig.pf, ext_sig.cksum); - } - } - } - } - /* now check if any cpu has matched */ - allocated_flag = 0; - sum = 0; - for_each_online_cpu(cpu_num) { - if (ucode_cpu_info[cpu_num].err == MC_MARKED) { - struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num; - if (!allocated_flag) { - allocated_flag = 1; - newmc = vmalloc(total_size); - if (!newmc) { - printk(KERN_ERR "microcode: error! Can not allocate memory\n"); - error = -ENOMEM; - goto out; - } - if (copy_from_user(newmc + MC_HEADER_SIZE, - user_buffer + cursor + MC_HEADER_SIZE, - total_size - MC_HEADER_SIZE)) { - printk(KERN_ERR "microcode: error! Can not read user data\n"); - vfree(newmc); - error = -EFAULT; - goto out; - } - memcpy(newmc, &mc_header, MC_HEADER_SIZE); - /* check extended table checksum */ - if (ext_table_size) { - int ext_table_sum = 0; - int * ext_tablep = (((void *) newmc) + MC_HEADER_SIZE + data_size); - i = ext_table_size / DWSIZE; - while (i--) ext_table_sum += ext_tablep[i]; - if (ext_table_sum) { - printk(KERN_WARNING "microcode: aborting, bad extended signature table checksum\n"); - vfree(newmc); - error = -EINVAL; - goto out; - } - } - - /* calculate the checksum */ - i = (MC_HEADER_SIZE + data_size) / DWSIZE; - while (i--) sum += ((int *)newmc)[i]; - sum -= (mc_header.sig + mc_header.pf + mc_header.cksum); - } - ucode_cpu_info[cpu_num].mc = newmc; - ucode_cpu_info[cpu_num].err = MC_ALLOCATED; /* mc updated */ - if (sum + uci->sig + uci->pf + uci->cksum != 0) { - printk(KERN_ERR "microcode: CPU%d aborting, bad checksum\n", cpu_num); - error = -EINVAL; - goto out; - } - } - } - cursor += total_size; /* goto the next update patch */ - } /* end of while */ -out: - return error; + memcpy(new_mc, mc, total_size); + uci->mc = new_mc; + return 1; } -static void do_update_one (void * unused) +static void apply_microcode(int cpu) { unsigned long flags; unsigned int val[2]; - int cpu_num = smp_processor_id(); + int cpu_num = raw_smp_processor_id(); struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num; - if (uci->mc == NULL) { - if (verbose) { - if (uci->err == MC_SUCCESS) - printk(KERN_INFO "microcode: CPU%d already at revision 0x%x\n", - cpu_num, uci->rev); - else - printk(KERN_INFO "microcode: No new microcode data for CPU%d\n", cpu_num); - } + /* We should bind the task to the CPU */ + BUG_ON(cpu_num != cpu); + + if (uci->mc == NULL) return; - } /* serialize access to the physical write to MSR 0x79 */ spin_lock_irqsave(µcode_update_lock, flags); @@ -408,68 +335,107 @@ /* get the current revision from MSR 0x8B */ rdmsr(MSR_IA32_UCODE_REV, val[0], val[1]); - /* notify the caller of success on this cpu */ - uci->err = MC_SUCCESS; spin_unlock_irqrestore(µcode_update_lock, flags); - printk(KERN_INFO "microcode: CPU%d updated from revision " + if (val[1] != uci->mc->hdr.rev) { + printk(KERN_ERR "microcode: CPU%d updated from revision " + "0x%x to 0x%x failed\n", cpu_num, uci->rev, val[1]); + return; + } + pr_debug("microcode: CPU%d updated from revision " "0x%x to 0x%x, date = %08x \n", cpu_num, uci->rev, val[1], uci->mc->hdr.date); - return; + uci->rev = val[1]; +} + +#ifdef CONFIG_MICROCODE_OLD_INTERFACE +static void __user *user_buffer; /* user area microcode data buffer */ +static unsigned int user_buffer_size; /* it's size */ + +static long get_next_ucode(void **mc, long offset) +{ + microcode_header_t mc_header; + unsigned long total_size; + + /* No more data */ + if (offset >= user_buffer_size) + return 0; + if (copy_from_user(&mc_header, user_buffer + offset, MC_HEADER_SIZE)) { + printk(KERN_ERR "microcode: error! Can not read user data\n"); + return -EFAULT; + } + total_size = get_totalsize(&mc_header); + if (offset + total_size > user_buffer_size) { + printk(KERN_ERR "microcode: error! Bad total size in microcode " + "data file\n"); + return -EINVAL; + } + *mc = vmalloc(total_size); + if (!*mc) + return -ENOMEM; + if (copy_from_user(*mc, user_buffer + offset, total_size)) { + printk(KERN_ERR "microcode: error! Can not read user data\n"); + vfree(*mc); + return -EFAULT; + } + return offset + total_size; } static int do_microcode_update (void) { - int i, error; + long cursor = 0; + int error = 0; + void *new_mc; + int cpu; + cpumask_t old; - if (on_each_cpu(collect_cpu_info, NULL, 1, 1) != 0) { - printk(KERN_ERR "microcode: Error! Could not run on all processors\n"); - error = -EIO; - goto out; - } + old = current->cpus_allowed; - if ((error = find_matching_ucodes())) { - printk(KERN_ERR "microcode: Error in the microcode data\n"); - goto out_free; - } + while ((cursor = get_next_ucode(&new_mc, cursor)) > 0) { + error = microcode_sanity_check(new_mc); + if (error) + goto out; + /* + * It's possible the data file has multiple matching ucode, + * lets keep searching till the latest version + */ + for_each_online_cpu(cpu) { + struct ucode_cpu_info *uci = ucode_cpu_info + cpu; - if (on_each_cpu(do_update_one, NULL, 1, 1) != 0) { - printk(KERN_ERR "microcode: Error! Could not run on all processors\n"); - error = -EIO; - } - -out_free: - for_each_online_cpu(i) { - if (ucode_cpu_info[i].mc) { - int j; - void *tmp = ucode_cpu_info[i].mc; - vfree(tmp); - for_each_online_cpu(j) { - if (ucode_cpu_info[j].mc == tmp) - ucode_cpu_info[j].mc = NULL; - } + if (!uci->valid) + continue; + set_cpus_allowed(current, cpumask_of_cpu(cpu)); + error = get_maching_microcode(new_mc, cpu); + if (error < 0) + goto out; + if (error == 1) + apply_microcode(cpu); } - if (ucode_cpu_info[i].err == MC_IGNORED && verbose) - printk(KERN_WARNING "microcode: CPU%d not 'upgrading' to earlier revision" - " 0x%x (current=0x%x)\n", i, ucode_cpu_info[i].cksum, ucode_cpu_info[i].rev); + vfree(new_mc); } out: + if (cursor > 0) + vfree(new_mc); + if (cursor < 0) + error = cursor; + set_cpus_allowed(current, old); return error; } +static int microcode_open (struct inode *unused1, struct file *unused2) +{ + return capable(CAP_SYS_RAWIO) ? 0 : -EPERM; +} + static ssize_t microcode_write (struct file *file, const char __user *buf, size_t len, loff_t *ppos) { ssize_t ret; - if (len < DEFAULT_UCODE_TOTALSIZE) { - printk(KERN_ERR "microcode: not enough data\n"); - return -EINVAL; - } - if ((len >> PAGE_SHIFT) > num_physpages) { printk(KERN_ERR "microcode: too much data (max %ld pages)\n", num_physpages); return -EINVAL; } + lock_cpu_hotplug(); mutex_lock(µcode_mutex); user_buffer = (void __user *) buf; @@ -480,6 +446,7 @@ ret = (ssize_t)len; mutex_unlock(µcode_mutex); + unlock_cpu_hotplug(); return ret; } @@ -496,7 +463,7 @@ .fops = µcode_fops, }; -static int __init microcode_init (void) +static int __init microcode_dev_init (void) { int error; @@ -508,6 +475,280 @@ return error; } + return 0; +} + +static void __exit microcode_dev_exit (void) +{ + misc_deregister(µcode_dev); +} + +MODULE_ALIAS_MISCDEV(MICROCODE_MINOR); +#else +#define microcode_dev_init() 0 +#define microcode_dev_exit() do { } while(0) +#endif + +static long get_next_ucode_from_buffer(void **mc, void *buf, + unsigned long size, long offset) +{ + microcode_header_t *mc_header; + unsigned long total_size; + + /* No more data */ + if (offset >= size) + return 0; + mc_header = (microcode_header_t *)(buf + offset); + total_size = get_totalsize(mc_header); + + if (offset + total_size > size) { + printk(KERN_ERR "microcode: error! Bad data in microcode data file\n"); + return -EINVAL; + } + + *mc = vmalloc(total_size); + if (!*mc) { + printk(KERN_ERR "microcode: error! Can not allocate memory\n"); + return -ENOMEM; + } + memcpy(*mc, buf + offset, total_size); + return offset + total_size; +} + +/* fake device for request_firmware */ +static struct platform_device *microcode_pdev; + +static int cpu_request_microcode(int cpu) +{ + char name[30]; + struct cpuinfo_x86 *c = cpu_data + cpu; + const struct firmware *firmware; + void *buf; + unsigned long size; + long offset = 0; + int error; + void *mc; + + /* We should bind the task to the CPU */ + BUG_ON(cpu != raw_smp_processor_id()); + sprintf(name,"intel-ucode/%02x-%02x-%02x", + c->x86, c->x86_model, c->x86_mask); + error = request_firmware(&firmware, name, µcode_pdev->dev); + if (error) { + pr_debug("ucode data file %s load failed\n", name); + return error; + } + buf = (void *)firmware->data; + size = firmware->size; + while ((offset = get_next_ucode_from_buffer(&mc, buf, size, offset)) + > 0) { + error = microcode_sanity_check(mc); + if (error) + break; + error = get_maching_microcode(mc, cpu); + if (error < 0) + break; + /* + * It's possible the data file has multiple matching ucode, + * lets keep searching till the latest version + */ + if (error == 1) { + apply_microcode(cpu); + error = 0; + } + vfree(mc); + } + if (offset > 0) + vfree(mc); + if (offset < 0) + error = offset; + release_firmware(firmware); + + return error; +} + +static void microcode_init_cpu(int cpu) +{ + cpumask_t old; + struct ucode_cpu_info *uci = ucode_cpu_info + cpu; + + old = current->cpus_allowed; + + set_cpus_allowed(current, cpumask_of_cpu(cpu)); + mutex_lock(µcode_mutex); + collect_cpu_info(cpu); + if (uci->valid) + cpu_request_microcode(cpu); + mutex_unlock(µcode_mutex); + set_cpus_allowed(current, old); +} + +static void microcode_fini_cpu(int cpu) +{ + struct ucode_cpu_info *uci = ucode_cpu_info + cpu; + + mutex_lock(µcode_mutex); + uci->valid = 0; + vfree(uci->mc); + uci->mc = NULL; + mutex_unlock(µcode_mutex); +} + +static ssize_t reload_store(struct sys_device *dev, const char *buf, size_t sz) +{ + struct ucode_cpu_info *uci = ucode_cpu_info + dev->id; + char *end; + unsigned long val = simple_strtoul(buf, &end, 0); + int err = 0; + int cpu = dev->id; + + if (end == buf) + return -EINVAL; + if (val == 1) { + cpumask_t old; + + old = current->cpus_allowed; + + lock_cpu_hotplug(); + set_cpus_allowed(current, cpumask_of_cpu(cpu)); + + mutex_lock(µcode_mutex); + if (uci->valid) + err = cpu_request_microcode(cpu); + mutex_unlock(µcode_mutex); + unlock_cpu_hotplug(); + set_cpus_allowed(current, old); + } + if (err) + return err; + return sz; +} + +static ssize_t version_show(struct sys_device *dev, char *buf) +{ + struct ucode_cpu_info *uci = ucode_cpu_info + dev->id; + + return sprintf(buf, "0x%x\n", uci->rev); +} + +static ssize_t pf_show(struct sys_device *dev, char *buf) +{ + struct ucode_cpu_info *uci = ucode_cpu_info + dev->id; + + return sprintf(buf, "0x%x\n", uci->pf); +} + +static SYSDEV_ATTR(reload, 0200, NULL, reload_store); +static SYSDEV_ATTR(version, 0400, version_show, NULL); +static SYSDEV_ATTR(processor_flags, 0400, pf_show, NULL); + +static struct attribute *mc_default_attrs[] = { + &attr_reload.attr, + &attr_version.attr, + &attr_processor_flags.attr, + NULL +}; + +static struct attribute_group mc_attr_group = { + .attrs = mc_default_attrs, + .name = "microcode", +}; + +static int mc_sysdev_add(struct sys_device *sys_dev) +{ + int cpu = sys_dev->id; + struct ucode_cpu_info *uci = ucode_cpu_info + cpu; + + if (!cpu_online(cpu)) + return 0; + pr_debug("Microcode:CPU %d added\n", cpu); + memset(uci, 0, sizeof(*uci)); + sysfs_create_group(&sys_dev->kobj, &mc_attr_group); + + microcode_init_cpu(cpu); + return 0; +} + +static int mc_sysdev_remove(struct sys_device *sys_dev) +{ + int cpu = sys_dev->id; + + if (!cpu_online(cpu)) + return 0; + pr_debug("Microcode:CPU %d removed\n", cpu); + microcode_fini_cpu(cpu); + sysfs_remove_group(&sys_dev->kobj, &mc_attr_group); + return 0; +} + +static int mc_sysdev_resume(struct sys_device *dev) +{ + int cpu = dev->id; + + if (!cpu_online(cpu)) + return 0; + pr_debug("Microcode:CPU %d resumed\n", cpu); + /* only CPU 0 will apply ucode here */ + apply_microcode(0); + return 0; +} + +static struct sysdev_driver mc_sysdev_driver = { + .add = mc_sysdev_add, + .remove = mc_sysdev_remove, + .resume = mc_sysdev_resume, +}; + +#ifdef CONFIG_HOTPLUG_CPU +static __cpuinit int +mc_cpu_callback(struct notifier_block *nb, unsigned long action, void *hcpu) +{ + unsigned int cpu = (unsigned long)hcpu; + struct sys_device *sys_dev; + + sys_dev = get_cpu_sysdev(cpu); + switch (action) { + case CPU_ONLINE: + case CPU_DOWN_FAILED: + mc_sysdev_add(sys_dev); + break; + case CPU_DOWN_PREPARE: + mc_sysdev_remove(sys_dev); + break; + } + return NOTIFY_OK; +} + +static struct notifier_block mc_cpu_notifier = { + .notifier_call = mc_cpu_callback, +}; +#endif + +static int __init microcode_init (void) +{ + int error; + + error = microcode_dev_init(); + if (error) + return error; + microcode_pdev = platform_device_register_simple("microcode", -1, + NULL, 0); + if (IS_ERR(microcode_pdev)) { + microcode_dev_exit(); + return PTR_ERR(microcode_pdev); + } + + lock_cpu_hotplug(); + error = sysdev_driver_register(&cpu_sysdev_class, &mc_sysdev_driver); + unlock_cpu_hotplug(); + if (error) { + microcode_dev_exit(); + platform_device_unregister(microcode_pdev); + return error; + } + + register_hotcpu_notifier(&mc_cpu_notifier); + printk(KERN_INFO "IA-32 Microcode Update Driver: v" MICROCODE_VERSION " <tigran@veritas.com>\n"); return 0; @@ -515,9 +756,16 @@ static void __exit microcode_exit (void) { - misc_deregister(µcode_dev); + microcode_dev_exit(); + + unregister_hotcpu_notifier(&mc_cpu_notifier); + + lock_cpu_hotplug(); + sysdev_driver_unregister(&cpu_sysdev_class, &mc_sysdev_driver); + unlock_cpu_hotplug(); + + platform_device_unregister(microcode_pdev); } module_init(microcode_init) module_exit(microcode_exit) -MODULE_ALIAS_MISCDEV(MICROCODE_MINOR);
diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c index a70b5fa..442aaf8 100644 --- a/arch/i386/kernel/mpparse.c +++ b/arch/i386/kernel/mpparse.c
@@ -30,6 +30,7 @@ #include <asm/io_apic.h> #include <mach_apic.h> +#include <mach_apicdef.h> #include <mach_mpparse.h> #include <bios_ebda.h> @@ -68,7 +69,7 @@ /* Processor that is doing the boot up */ unsigned int boot_cpu_physical_apicid = -1U; /* Internal processor count */ -static unsigned int __devinitdata num_processors; +unsigned int __cpuinitdata num_processors; /* Bitmask of physically existing CPUs */ physid_mask_t phys_cpu_present_map; @@ -228,12 +229,14 @@ mpc_oem_bus_info(m, str, translation_table[mpc_record]); +#if MAX_MP_BUSSES < 256 if (m->mpc_busid >= MAX_MP_BUSSES) { printk(KERN_WARNING "MP table busid value (%d) for bustype %s " " is too large, max. supported is %d\n", m->mpc_busid, str, MAX_MP_BUSSES - 1); return; } +#endif if (strncmp(str, BUSTYPE_ISA, sizeof(BUSTYPE_ISA)-1) == 0) { mp_bus_id_to_type[m->mpc_busid] = MP_BUS_ISA; @@ -293,19 +296,6 @@ m->mpc_irqtype, m->mpc_irqflag & 3, (m->mpc_irqflag >> 2) &3, m->mpc_srcbusid, m->mpc_srcbusirq, m->mpc_destapic, m->mpc_destapiclint); - /* - * Well it seems all SMP boards in existence - * use ExtINT/LVT1 == LINT0 and - * NMI/LVT2 == LINT1 - the following check - * will show us if this assumptions is false. - * Until then we do not have to add baggage. - */ - if ((m->mpc_irqtype == mp_ExtINT) && - (m->mpc_destapiclint != 0)) - BUG(); - if ((m->mpc_irqtype == mp_NMI) && - (m->mpc_destapiclint != 1)) - BUG(); } #ifdef CONFIG_X86_NUMAQ @@ -822,8 +812,7 @@ #ifdef CONFIG_ACPI -void __init mp_register_lapic_address ( - u64 address) +void __init mp_register_lapic_address(u64 address) { mp_lapic_addr = (unsigned long) address; @@ -835,13 +824,10 @@ Dprintk("Boot CPU = %d\n", boot_cpu_physical_apicid); } - -void __devinit mp_register_lapic ( - u8 id, - u8 enabled) +void __devinit mp_register_lapic (u8 id, u8 enabled) { struct mpc_config_processor processor; - int boot_cpu = 0; + int boot_cpu = 0; if (MAX_APICS - id <= 0) { printk(KERN_WARNING "Processor #%d invalid (max %d)\n", @@ -878,11 +864,9 @@ u32 pin_programmed[4]; } mp_ioapic_routing[MAX_IO_APICS]; - -static int mp_find_ioapic ( - int gsi) +static int mp_find_ioapic (int gsi) { - int i = 0; + int i = 0; /* Find the IOAPIC that manages this GSI. */ for (i = 0; i < nr_ioapics; i++) { @@ -895,15 +879,11 @@ return -1; } - -void __init mp_register_ioapic ( - u8 id, - u32 address, - u32 gsi_base) +void __init mp_register_ioapic(u8 id, u32 address, u32 gsi_base) { - int idx = 0; - int tmpid; + int idx = 0; + int tmpid; if (nr_ioapics >= MAX_IO_APICS) { printk(KERN_ERR "ERROR: Max # of I/O APICs (%d) exceeded " @@ -949,16 +929,10 @@ mp_ioapics[idx].mpc_apicver, mp_ioapics[idx].mpc_apicaddr, mp_ioapic_routing[idx].gsi_base, mp_ioapic_routing[idx].gsi_end); - - return; } - -void __init mp_override_legacy_irq ( - u8 bus_irq, - u8 polarity, - u8 trigger, - u32 gsi) +void __init +mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32 gsi) { struct mpc_config_intsrc intsrc; int ioapic = -1; @@ -996,15 +970,13 @@ mp_irqs[mp_irq_entries] = intsrc; if (++mp_irq_entries == MAX_IRQ_SOURCES) panic("Max # of irq sources exceeded!\n"); - - return; } void __init mp_config_acpi_legacy_irqs (void) { struct mpc_config_intsrc intsrc; - int i = 0; - int ioapic = -1; + int i = 0; + int ioapic = -1; /* * Fabricate the legacy ISA bus (bus #31). @@ -1073,12 +1045,12 @@ #define MAX_GSI_NUM 4096 -int mp_register_gsi (u32 gsi, int triggering, int polarity) +int mp_register_gsi(u32 gsi, int triggering, int polarity) { - int ioapic = -1; - int ioapic_pin = 0; - int idx, bit = 0; - static int pci_irq = 16; + int ioapic = -1; + int ioapic_pin = 0; + int idx, bit = 0; + static int pci_irq = 16; /* * Mapping between Global System Interrups, which * represent all possible interrupts, and IRQs
diff --git a/arch/i386/kernel/nmi.c b/arch/i386/kernel/nmi.c index acb3514..dbda706 100644 --- a/arch/i386/kernel/nmi.c +++ b/arch/i386/kernel/nmi.c
@@ -21,83 +21,174 @@ #include <linux/sysdev.h> #include <linux/sysctl.h> #include <linux/percpu.h> +#include <linux/dmi.h> +#include <linux/kprobes.h> #include <asm/smp.h> #include <asm/nmi.h> +#include <asm/kdebug.h> #include <asm/intel_arch_perfmon.h> #include "mach_traps.h" -unsigned int nmi_watchdog = NMI_NONE; -extern int unknown_nmi_panic; -static unsigned int nmi_hz = HZ; -static unsigned int nmi_perfctr_msr; /* the MSR to reset in NMI handler */ -static unsigned int nmi_p4_cccr_val; -extern void show_registers(struct pt_regs *regs); - -/* - * lapic_nmi_owner tracks the ownership of the lapic NMI hardware: - * - it may be reserved by some other driver, or not - * - when not reserved by some other driver, it may be used for - * the NMI watchdog, or not - * - * This is maintained separately from nmi_active because the NMI - * watchdog may also be driven from the I/O APIC timer. +/* perfctr_nmi_owner tracks the ownership of the perfctr registers: + * evtsel_nmi_owner tracks the ownership of the event selection + * - different performance counters/ event selection may be reserved for + * different subsystems this reservation system just tries to coordinate + * things a little */ -static DEFINE_SPINLOCK(lapic_nmi_owner_lock); -static unsigned int lapic_nmi_owner; -#define LAPIC_NMI_WATCHDOG (1<<0) -#define LAPIC_NMI_RESERVED (1<<1) +static DEFINE_PER_CPU(unsigned long, perfctr_nmi_owner); +static DEFINE_PER_CPU(unsigned long, evntsel_nmi_owner[3]); + +/* this number is calculated from Intel's MSR_P4_CRU_ESCR5 register and it's + * offset from MSR_P4_BSU_ESCR0. It will be the max for all platforms (for now) + */ +#define NMI_MAX_COUNTER_BITS 66 /* nmi_active: - * +1: the lapic NMI watchdog is active, but can be disabled - * 0: the lapic NMI watchdog has not been set up, and cannot + * >0: the lapic NMI watchdog is active, but can be disabled + * <0: the lapic NMI watchdog has not been set up, and cannot * be enabled - * -1: the lapic NMI watchdog is disabled, but can be enabled + * 0: the lapic NMI watchdog is disabled, but can be enabled */ -int nmi_active; +atomic_t nmi_active = ATOMIC_INIT(0); /* oprofile uses this */ -#define K7_EVNTSEL_ENABLE (1 << 22) -#define K7_EVNTSEL_INT (1 << 20) -#define K7_EVNTSEL_OS (1 << 17) -#define K7_EVNTSEL_USR (1 << 16) -#define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76 -#define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING +unsigned int nmi_watchdog = NMI_DEFAULT; +static unsigned int nmi_hz = HZ; -#define P6_EVNTSEL0_ENABLE (1 << 22) -#define P6_EVNTSEL_INT (1 << 20) -#define P6_EVNTSEL_OS (1 << 17) -#define P6_EVNTSEL_USR (1 << 16) -#define P6_EVENT_CPU_CLOCKS_NOT_HALTED 0x79 -#define P6_NMI_EVENT P6_EVENT_CPU_CLOCKS_NOT_HALTED +struct nmi_watchdog_ctlblk { + int enabled; + u64 check_bit; + unsigned int cccr_msr; + unsigned int perfctr_msr; /* the MSR to reset in NMI handler */ + unsigned int evntsel_msr; /* the MSR to select the events to handle */ +}; +static DEFINE_PER_CPU(struct nmi_watchdog_ctlblk, nmi_watchdog_ctlblk); -#define MSR_P4_MISC_ENABLE 0x1A0 -#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) -#define MSR_P4_MISC_ENABLE_PEBS_UNAVAIL (1<<12) -#define MSR_P4_PERFCTR0 0x300 -#define MSR_P4_CCCR0 0x360 -#define P4_ESCR_EVENT_SELECT(N) ((N)<<25) -#define P4_ESCR_OS (1<<3) -#define P4_ESCR_USR (1<<2) -#define P4_CCCR_OVF_PMI0 (1<<26) -#define P4_CCCR_OVF_PMI1 (1<<27) -#define P4_CCCR_THRESHOLD(N) ((N)<<20) -#define P4_CCCR_COMPLEMENT (1<<19) -#define P4_CCCR_COMPARE (1<<18) -#define P4_CCCR_REQUIRED (3<<16) -#define P4_CCCR_ESCR_SELECT(N) ((N)<<13) -#define P4_CCCR_ENABLE (1<<12) -/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter - CRU_ESCR0 (with any non-null event selector) through a complemented - max threshold. [IA32-Vol3, Section 14.9.9] */ -#define MSR_P4_IQ_COUNTER0 0x30C -#define P4_NMI_CRU_ESCR0 (P4_ESCR_EVENT_SELECT(0x3F)|P4_ESCR_OS|P4_ESCR_USR) -#define P4_NMI_IQ_CCCR0 \ - (P4_CCCR_OVF_PMI0|P4_CCCR_THRESHOLD(15)|P4_CCCR_COMPLEMENT| \ - P4_CCCR_COMPARE|P4_CCCR_REQUIRED|P4_CCCR_ESCR_SELECT(4)|P4_CCCR_ENABLE) +/* local prototypes */ +static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu); -#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL -#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK +extern void show_registers(struct pt_regs *regs); +extern int unknown_nmi_panic; + +/* converts an msr to an appropriate reservation bit */ +static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr) +{ + /* returns the bit offset of the performance counter register */ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + return (msr - MSR_K7_PERFCTR0); + case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) + return (msr - MSR_ARCH_PERFMON_PERFCTR0); + + switch (boot_cpu_data.x86) { + case 6: + return (msr - MSR_P6_PERFCTR0); + case 15: + return (msr - MSR_P4_BPU_PERFCTR0); + } + } + return 0; +} + +/* converts an msr to an appropriate reservation bit */ +static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr) +{ + /* returns the bit offset of the event selection register */ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + return (msr - MSR_K7_EVNTSEL0); + case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) + return (msr - MSR_ARCH_PERFMON_EVENTSEL0); + + switch (boot_cpu_data.x86) { + case 6: + return (msr - MSR_P6_EVNTSEL0); + case 15: + return (msr - MSR_P4_BSU_ESCR0); + } + } + return 0; +} + +/* checks for a bit availability (hack for oprofile) */ +int avail_to_resrv_perfctr_nmi_bit(unsigned int counter) +{ + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + return (!test_bit(counter, &__get_cpu_var(perfctr_nmi_owner))); +} + +/* checks the an msr for availability */ +int avail_to_resrv_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + return (!test_bit(counter, &__get_cpu_var(perfctr_nmi_owner))); +} + +int reserve_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + if (!test_and_set_bit(counter, &__get_cpu_var(perfctr_nmi_owner))) + return 1; + return 0; +} + +void release_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + clear_bit(counter, &__get_cpu_var(perfctr_nmi_owner)); +} + +int reserve_evntsel_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_evntsel_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + if (!test_and_set_bit(counter, &__get_cpu_var(evntsel_nmi_owner)[0])) + return 1; + return 0; +} + +void release_evntsel_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_evntsel_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + clear_bit(counter, &__get_cpu_var(evntsel_nmi_owner)[0]); +} + +static __cpuinit inline int nmi_known_cpu(void) +{ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + return ((boot_cpu_data.x86 == 15) || (boot_cpu_data.x86 == 6)); + case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) + return 1; + else + return ((boot_cpu_data.x86 == 15) || (boot_cpu_data.x86 == 6)); + } + return 0; +} #ifdef CONFIG_SMP /* The performance counters used by NMI_LOCAL_APIC don't trigger when @@ -125,7 +216,18 @@ unsigned int *prev_nmi_count; int cpu; - if (nmi_watchdog == NMI_NONE) + /* Enable NMI watchdog for newer systems. + Actually it should be safe for most systems before 2004 too except + for some IBM systems that corrupt registers when NMI happens + during SMM. Unfortunately we don't have more exact information + on these and use this coarse check. */ + if (nmi_watchdog == NMI_DEFAULT && dmi_get_year(DMI_BIOS_DATE) >= 2004) + nmi_watchdog = NMI_LOCAL_APIC; + + if ((nmi_watchdog == NMI_NONE) || (nmi_watchdog == NMI_DEFAULT)) + return 0; + + if (!atomic_read(&nmi_active)) return 0; prev_nmi_count = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL); @@ -149,25 +251,45 @@ if (!cpu_isset(cpu, cpu_callin_map)) continue; #endif + if (!per_cpu(nmi_watchdog_ctlblk, cpu).enabled) + continue; if (nmi_count(cpu) - prev_nmi_count[cpu] <= 5) { - endflag = 1; printk("CPU#%d: NMI appears to be stuck (%d->%d)!\n", cpu, prev_nmi_count[cpu], nmi_count(cpu)); - nmi_active = 0; - lapic_nmi_owner &= ~LAPIC_NMI_WATCHDOG; - kfree(prev_nmi_count); - return -1; + per_cpu(nmi_watchdog_ctlblk, cpu).enabled = 0; + atomic_dec(&nmi_active); } } + if (!atomic_read(&nmi_active)) { + kfree(prev_nmi_count); + atomic_set(&nmi_active, -1); + return -1; + } endflag = 1; printk("OK.\n"); /* now that we know it works we can reduce NMI frequency to something more reasonable; makes a difference in some configs */ - if (nmi_watchdog == NMI_LOCAL_APIC) + if (nmi_watchdog == NMI_LOCAL_APIC) { + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + nmi_hz = 1; + /* + * On Intel CPUs with ARCH_PERFMON only 32 bits in the counter + * are writable, with higher bits sign extending from bit 31. + * So, we can only program the counter with 31 bit values and + * 32nd bit should be 1, for 33.. to be 1. + * Find the appropriate nmi_hz + */ + if (wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0 && + ((u64)cpu_khz * 1000) > 0x7fffffffULL) { + u64 count = (u64)cpu_khz * 1000; + do_div(count, 0x7fffffffUL); + nmi_hz = count + 1; + } + } kfree(prev_nmi_count); return 0; @@ -181,124 +303,70 @@ get_option(&str, &nmi); - if (nmi >= NMI_INVALID) + if ((nmi >= NMI_INVALID) || (nmi < NMI_NONE)) return 0; - if (nmi == NMI_NONE) - nmi_watchdog = nmi; /* * If any other x86 CPU has a local APIC, then * please test the NMI stuff there and send me the * missing bits. Right now Intel P6/P4 and AMD K7 only. */ - if ((nmi == NMI_LOCAL_APIC) && - (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) && - (boot_cpu_data.x86 == 6 || boot_cpu_data.x86 == 15)) - nmi_watchdog = nmi; - if ((nmi == NMI_LOCAL_APIC) && - (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) && - (boot_cpu_data.x86 == 6 || boot_cpu_data.x86 == 15)) - nmi_watchdog = nmi; - /* - * We can enable the IO-APIC watchdog - * unconditionally. - */ - if (nmi == NMI_IO_APIC) { - nmi_active = 1; - nmi_watchdog = nmi; - } + if ((nmi == NMI_LOCAL_APIC) && (nmi_known_cpu() == 0)) + return 0; /* no lapic support */ + nmi_watchdog = nmi; return 1; } __setup("nmi_watchdog=", setup_nmi_watchdog); -static void disable_intel_arch_watchdog(void); - static void disable_lapic_nmi_watchdog(void) { - if (nmi_active <= 0) + BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); + + if (atomic_read(&nmi_active) <= 0) return; - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - wrmsr(MSR_K7_EVNTSEL0, 0, 0); - break; - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - disable_intel_arch_watchdog(); - break; - } - switch (boot_cpu_data.x86) { - case 6: - if (boot_cpu_data.x86_model > 0xd) - break; - wrmsr(MSR_P6_EVNTSEL0, 0, 0); - break; - case 15: - if (boot_cpu_data.x86_model > 0x4) - break; + on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); - wrmsr(MSR_P4_IQ_CCCR0, 0, 0); - wrmsr(MSR_P4_CRU_ESCR0, 0, 0); - break; - } - break; - } - nmi_active = -1; - /* tell do_nmi() and others that we're not active any more */ - nmi_watchdog = 0; + BUG_ON(atomic_read(&nmi_active) != 0); } static void enable_lapic_nmi_watchdog(void) { - if (nmi_active < 0) { - nmi_watchdog = NMI_LOCAL_APIC; - setup_apic_nmi_watchdog(); - } -} + BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); -int reserve_lapic_nmi(void) -{ - unsigned int old_owner; + /* are we already enabled */ + if (atomic_read(&nmi_active) != 0) + return; - spin_lock(&lapic_nmi_owner_lock); - old_owner = lapic_nmi_owner; - lapic_nmi_owner |= LAPIC_NMI_RESERVED; - spin_unlock(&lapic_nmi_owner_lock); - if (old_owner & LAPIC_NMI_RESERVED) - return -EBUSY; - if (old_owner & LAPIC_NMI_WATCHDOG) - disable_lapic_nmi_watchdog(); - return 0; -} + /* are we lapic aware */ + if (nmi_known_cpu() <= 0) + return; -void release_lapic_nmi(void) -{ - unsigned int new_owner; - - spin_lock(&lapic_nmi_owner_lock); - new_owner = lapic_nmi_owner & ~LAPIC_NMI_RESERVED; - lapic_nmi_owner = new_owner; - spin_unlock(&lapic_nmi_owner_lock); - if (new_owner & LAPIC_NMI_WATCHDOG) - enable_lapic_nmi_watchdog(); + on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); + touch_nmi_watchdog(); } void disable_timer_nmi_watchdog(void) { - if ((nmi_watchdog != NMI_IO_APIC) || (nmi_active <= 0)) + BUG_ON(nmi_watchdog != NMI_IO_APIC); + + if (atomic_read(&nmi_active) <= 0) return; - unset_nmi_callback(); - nmi_active = -1; - nmi_watchdog = NMI_NONE; + disable_irq(0); + on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); + + BUG_ON(atomic_read(&nmi_active) != 0); } void enable_timer_nmi_watchdog(void) { - if (nmi_active < 0) { - nmi_watchdog = NMI_IO_APIC; + BUG_ON(nmi_watchdog != NMI_IO_APIC); + + if (atomic_read(&nmi_active) == 0) { touch_nmi_watchdog(); - nmi_active = 1; + on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); + enable_irq(0); } } @@ -308,15 +376,20 @@ static int lapic_nmi_suspend(struct sys_device *dev, pm_message_t state) { - nmi_pm_active = nmi_active; - disable_lapic_nmi_watchdog(); + /* only CPU0 goes here, other CPUs should be offline */ + nmi_pm_active = atomic_read(&nmi_active); + stop_apic_nmi_watchdog(NULL); + BUG_ON(atomic_read(&nmi_active) != 0); return 0; } static int lapic_nmi_resume(struct sys_device *dev) { - if (nmi_pm_active > 0) - enable_lapic_nmi_watchdog(); + /* only CPU0 goes here, other CPUs should be offline */ + if (nmi_pm_active > 0) { + setup_apic_nmi_watchdog(NULL); + touch_nmi_watchdog(); + } return 0; } @@ -336,7 +409,13 @@ { int error; - if (nmi_active == 0 || nmi_watchdog != NMI_LOCAL_APIC) + /* should really be a BUG_ON but b/c this is an + * init call, it just doesn't work. -dcz + */ + if (nmi_watchdog != NMI_LOCAL_APIC) + return 0; + + if ( atomic_read(&nmi_active) < 0 ) return 0; error = sysdev_class_register(&nmi_sysclass); @@ -354,138 +433,269 @@ * Original code written by Keith Owens. */ -static void clear_msr_range(unsigned int base, unsigned int n) -{ - unsigned int i; - - for(i = 0; i < n; ++i) - wrmsr(base+i, 0, 0); -} - -static void write_watchdog_counter(const char *descr) +static void write_watchdog_counter(unsigned int perfctr_msr, const char *descr) { u64 count = (u64)cpu_khz * 1000; do_div(count, nmi_hz); if(descr) Dprintk("setting %s to -0x%08Lx\n", descr, count); - wrmsrl(nmi_perfctr_msr, 0 - count); + wrmsrl(perfctr_msr, 0 - count); } -static void setup_k7_watchdog(void) +/* Note that these events don't tick when the CPU idles. This means + the frequency varies with CPU load. */ + +#define K7_EVNTSEL_ENABLE (1 << 22) +#define K7_EVNTSEL_INT (1 << 20) +#define K7_EVNTSEL_OS (1 << 17) +#define K7_EVNTSEL_USR (1 << 16) +#define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76 +#define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING + +static int setup_k7_watchdog(void) { + unsigned int perfctr_msr, evntsel_msr; unsigned int evntsel; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - nmi_perfctr_msr = MSR_K7_PERFCTR0; + perfctr_msr = MSR_K7_PERFCTR0; + evntsel_msr = MSR_K7_EVNTSEL0; + if (!reserve_perfctr_nmi(perfctr_msr)) + goto fail; - clear_msr_range(MSR_K7_EVNTSEL0, 4); - clear_msr_range(MSR_K7_PERFCTR0, 4); + if (!reserve_evntsel_nmi(evntsel_msr)) + goto fail1; + + wrmsrl(perfctr_msr, 0UL); evntsel = K7_EVNTSEL_INT | K7_EVNTSEL_OS | K7_EVNTSEL_USR | K7_NMI_EVENT; - wrmsr(MSR_K7_EVNTSEL0, evntsel, 0); - write_watchdog_counter("K7_PERFCTR0"); + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + write_watchdog_counter(perfctr_msr, "K7_PERFCTR0"); apic_write(APIC_LVTPC, APIC_DM_NMI); evntsel |= K7_EVNTSEL_ENABLE; - wrmsr(MSR_K7_EVNTSEL0, evntsel, 0); + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + wd->check_bit = 1ULL<<63; + return 1; +fail1: + release_perfctr_nmi(perfctr_msr); +fail: + return 0; } -static void setup_p6_watchdog(void) +static void stop_k7_watchdog(void) { + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + wrmsr(wd->evntsel_msr, 0, 0); + + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); +} + +#define P6_EVNTSEL0_ENABLE (1 << 22) +#define P6_EVNTSEL_INT (1 << 20) +#define P6_EVNTSEL_OS (1 << 17) +#define P6_EVNTSEL_USR (1 << 16) +#define P6_EVENT_CPU_CLOCKS_NOT_HALTED 0x79 +#define P6_NMI_EVENT P6_EVENT_CPU_CLOCKS_NOT_HALTED + +static int setup_p6_watchdog(void) +{ + unsigned int perfctr_msr, evntsel_msr; unsigned int evntsel; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - nmi_perfctr_msr = MSR_P6_PERFCTR0; + perfctr_msr = MSR_P6_PERFCTR0; + evntsel_msr = MSR_P6_EVNTSEL0; + if (!reserve_perfctr_nmi(perfctr_msr)) + goto fail; - clear_msr_range(MSR_P6_EVNTSEL0, 2); - clear_msr_range(MSR_P6_PERFCTR0, 2); + if (!reserve_evntsel_nmi(evntsel_msr)) + goto fail1; + + wrmsrl(perfctr_msr, 0UL); evntsel = P6_EVNTSEL_INT | P6_EVNTSEL_OS | P6_EVNTSEL_USR | P6_NMI_EVENT; - wrmsr(MSR_P6_EVNTSEL0, evntsel, 0); - write_watchdog_counter("P6_PERFCTR0"); + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + write_watchdog_counter(perfctr_msr, "P6_PERFCTR0"); apic_write(APIC_LVTPC, APIC_DM_NMI); evntsel |= P6_EVNTSEL0_ENABLE; - wrmsr(MSR_P6_EVNTSEL0, evntsel, 0); + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + wd->check_bit = 1ULL<<39; + return 1; +fail1: + release_perfctr_nmi(perfctr_msr); +fail: + return 0; } +static void stop_p6_watchdog(void) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + wrmsr(wd->evntsel_msr, 0, 0); + + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); +} + +/* Note that these events don't tick when the CPU idles. This means + the frequency varies with CPU load. */ + +#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) +#define P4_ESCR_EVENT_SELECT(N) ((N)<<25) +#define P4_ESCR_OS (1<<3) +#define P4_ESCR_USR (1<<2) +#define P4_CCCR_OVF_PMI0 (1<<26) +#define P4_CCCR_OVF_PMI1 (1<<27) +#define P4_CCCR_THRESHOLD(N) ((N)<<20) +#define P4_CCCR_COMPLEMENT (1<<19) +#define P4_CCCR_COMPARE (1<<18) +#define P4_CCCR_REQUIRED (3<<16) +#define P4_CCCR_ESCR_SELECT(N) ((N)<<13) +#define P4_CCCR_ENABLE (1<<12) +#define P4_CCCR_OVF (1<<31) +/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter + CRU_ESCR0 (with any non-null event selector) through a complemented + max threshold. [IA32-Vol3, Section 14.9.9] */ + static int setup_p4_watchdog(void) { + unsigned int perfctr_msr, evntsel_msr, cccr_msr; + unsigned int evntsel, cccr_val; unsigned int misc_enable, dummy; + unsigned int ht_num; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - rdmsr(MSR_P4_MISC_ENABLE, misc_enable, dummy); + rdmsr(MSR_IA32_MISC_ENABLE, misc_enable, dummy); if (!(misc_enable & MSR_P4_MISC_ENABLE_PERF_AVAIL)) return 0; - nmi_perfctr_msr = MSR_P4_IQ_COUNTER0; - nmi_p4_cccr_val = P4_NMI_IQ_CCCR0; #ifdef CONFIG_SMP - if (smp_num_siblings == 2) - nmi_p4_cccr_val |= P4_CCCR_OVF_PMI1; + /* detect which hyperthread we are on */ + if (smp_num_siblings == 2) { + unsigned int ebx, apicid; + + ebx = cpuid_ebx(1); + apicid = (ebx >> 24) & 0xff; + ht_num = apicid & 1; + } else #endif + ht_num = 0; - if (!(misc_enable & MSR_P4_MISC_ENABLE_PEBS_UNAVAIL)) - clear_msr_range(0x3F1, 2); - /* MSR 0x3F0 seems to have a default value of 0xFC00, but current - docs doesn't fully define it, so leave it alone for now. */ - if (boot_cpu_data.x86_model >= 0x3) { - /* MSR_P4_IQ_ESCR0/1 (0x3ba/0x3bb) removed */ - clear_msr_range(0x3A0, 26); - clear_msr_range(0x3BC, 3); - } else { - clear_msr_range(0x3A0, 31); - } - clear_msr_range(0x3C0, 6); - clear_msr_range(0x3C8, 6); - clear_msr_range(0x3E0, 2); - clear_msr_range(MSR_P4_CCCR0, 18); - clear_msr_range(MSR_P4_PERFCTR0, 18); - - wrmsr(MSR_P4_CRU_ESCR0, P4_NMI_CRU_ESCR0, 0); - wrmsr(MSR_P4_IQ_CCCR0, P4_NMI_IQ_CCCR0 & ~P4_CCCR_ENABLE, 0); - write_watchdog_counter("P4_IQ_COUNTER0"); - apic_write(APIC_LVTPC, APIC_DM_NMI); - wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0); - return 1; -} - -static void disable_intel_arch_watchdog(void) -{ - unsigned ebx; - - /* - * Check whether the Architectural PerfMon supports - * Unhalted Core Cycles Event or not. - * NOTE: Corresponding bit = 0 in ebp indicates event present. + /* performance counters are shared resources + * assign each hyperthread its own set + * (re-use the ESCR0 register, seems safe + * and keeps the cccr_val the same) */ - ebx = cpuid_ebx(10); - if (!(ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) - wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, 0, 0); + if (!ht_num) { + /* logical cpu 0 */ + perfctr_msr = MSR_P4_IQ_PERFCTR0; + evntsel_msr = MSR_P4_CRU_ESCR0; + cccr_msr = MSR_P4_IQ_CCCR0; + cccr_val = P4_CCCR_OVF_PMI0 | P4_CCCR_ESCR_SELECT(4); + } else { + /* logical cpu 1 */ + perfctr_msr = MSR_P4_IQ_PERFCTR1; + evntsel_msr = MSR_P4_CRU_ESCR0; + cccr_msr = MSR_P4_IQ_CCCR1; + cccr_val = P4_CCCR_OVF_PMI1 | P4_CCCR_ESCR_SELECT(4); + } + + if (!reserve_perfctr_nmi(perfctr_msr)) + goto fail; + + if (!reserve_evntsel_nmi(evntsel_msr)) + goto fail1; + + evntsel = P4_ESCR_EVENT_SELECT(0x3F) + | P4_ESCR_OS + | P4_ESCR_USR; + + cccr_val |= P4_CCCR_THRESHOLD(15) + | P4_CCCR_COMPLEMENT + | P4_CCCR_COMPARE + | P4_CCCR_REQUIRED; + + wrmsr(evntsel_msr, evntsel, 0); + wrmsr(cccr_msr, cccr_val, 0); + write_watchdog_counter(perfctr_msr, "P4_IQ_COUNTER0"); + apic_write(APIC_LVTPC, APIC_DM_NMI); + cccr_val |= P4_CCCR_ENABLE; + wrmsr(cccr_msr, cccr_val, 0); + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = cccr_msr; + wd->check_bit = 1ULL<<39; + return 1; +fail1: + release_perfctr_nmi(perfctr_msr); +fail: + return 0; } +static void stop_p4_watchdog(void) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + wrmsr(wd->cccr_msr, 0, 0); + wrmsr(wd->evntsel_msr, 0, 0); + + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); +} + +#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL +#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK + static int setup_intel_arch_watchdog(void) { + unsigned int ebx; + union cpuid10_eax eax; + unsigned int unused; + unsigned int perfctr_msr, evntsel_msr; unsigned int evntsel; - unsigned ebx; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); /* * Check whether the Architectural PerfMon supports * Unhalted Core Cycles Event or not. - * NOTE: Corresponding bit = 0 in ebp indicates event present. + * NOTE: Corresponding bit = 0 in ebx indicates event present. */ - ebx = cpuid_ebx(10); - if ((ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) - return 0; + cpuid(10, &(eax.full), &ebx, &unused, &unused); + if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || + (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) + goto fail; - nmi_perfctr_msr = MSR_ARCH_PERFMON_PERFCTR0; + perfctr_msr = MSR_ARCH_PERFMON_PERFCTR0; + evntsel_msr = MSR_ARCH_PERFMON_EVENTSEL0; - clear_msr_range(MSR_ARCH_PERFMON_EVENTSEL0, 2); - clear_msr_range(MSR_ARCH_PERFMON_PERFCTR0, 2); + if (!reserve_perfctr_nmi(perfctr_msr)) + goto fail; + + if (!reserve_evntsel_nmi(evntsel_msr)) + goto fail1; + + wrmsrl(perfctr_msr, 0UL); evntsel = ARCH_PERFMON_EVENTSEL_INT | ARCH_PERFMON_EVENTSEL_OS @@ -493,51 +703,145 @@ | ARCH_PERFMON_NMI_EVENT_SEL | ARCH_PERFMON_NMI_EVENT_UMASK; - wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, evntsel, 0); - write_watchdog_counter("INTEL_ARCH_PERFCTR0"); + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + write_watchdog_counter(perfctr_msr, "INTEL_ARCH_PERFCTR0"); apic_write(APIC_LVTPC, APIC_DM_NMI); evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE; - wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, evntsel, 0); + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + wd->check_bit = 1ULL << (eax.split.bit_width - 1); return 1; +fail1: + release_perfctr_nmi(perfctr_msr); +fail: + return 0; } -void setup_apic_nmi_watchdog (void) +static void stop_intel_arch_watchdog(void) { - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - if (boot_cpu_data.x86 != 6 && boot_cpu_data.x86 != 15) - return; - setup_k7_watchdog(); - break; - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - if (!setup_intel_arch_watchdog()) + unsigned int ebx; + union cpuid10_eax eax; + unsigned int unused; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + /* + * Check whether the Architectural PerfMon supports + * Unhalted Core Cycles Event or not. + * NOTE: Corresponding bit = 0 in ebx indicates event present. + */ + cpuid(10, &(eax.full), &ebx, &unused, &unused); + if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || + (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) + return; + + wrmsr(wd->evntsel_msr, 0, 0); + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); +} + +void setup_apic_nmi_watchdog (void *unused) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + /* only support LOCAL and IO APICs for now */ + if ((nmi_watchdog != NMI_LOCAL_APIC) && + (nmi_watchdog != NMI_IO_APIC)) + return; + + if (wd->enabled == 1) + return; + + /* cheap hack to support suspend/resume */ + /* if cpu0 is not active neither should the other cpus */ + if ((smp_processor_id() != 0) && (atomic_read(&nmi_active) <= 0)) + return; + + if (nmi_watchdog == NMI_LOCAL_APIC) { + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + if (boot_cpu_data.x86 != 6 && boot_cpu_data.x86 != 15) + return; + if (!setup_k7_watchdog()) return; break; - } - switch (boot_cpu_data.x86) { - case 6: - if (boot_cpu_data.x86_model > 0xd) - return; + case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { + if (!setup_intel_arch_watchdog()) + return; + break; + } + switch (boot_cpu_data.x86) { + case 6: + if (boot_cpu_data.x86_model > 0xd) + return; - setup_p6_watchdog(); - break; - case 15: - if (boot_cpu_data.x86_model > 0x4) - return; + if (!setup_p6_watchdog()) + return; + break; + case 15: + if (boot_cpu_data.x86_model > 0x4) + return; - if (!setup_p4_watchdog()) + if (!setup_p4_watchdog()) + return; + break; + default: return; + } break; default: return; } - break; - default: - return; } - lapic_nmi_owner = LAPIC_NMI_WATCHDOG; - nmi_active = 1; + wd->enabled = 1; + atomic_inc(&nmi_active); +} + +void stop_apic_nmi_watchdog(void *unused) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + /* only support LOCAL and IO APICs for now */ + if ((nmi_watchdog != NMI_LOCAL_APIC) && + (nmi_watchdog != NMI_IO_APIC)) + return; + + if (wd->enabled == 0) + return; + + if (nmi_watchdog == NMI_LOCAL_APIC) { + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + stop_k7_watchdog(); + break; + case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { + stop_intel_arch_watchdog(); + break; + } + switch (boot_cpu_data.x86) { + case 6: + if (boot_cpu_data.x86_model > 0xd) + break; + stop_p6_watchdog(); + break; + case 15: + if (boot_cpu_data.x86_model > 0x4) + break; + stop_p4_watchdog(); + break; + } + break; + default: + return; + } + } + wd->enabled = 0; + atomic_dec(&nmi_active); } /* @@ -579,7 +883,7 @@ extern void die_nmi(struct pt_regs *, const char *msg); -void nmi_watchdog_tick (struct pt_regs * regs) +__kprobes int nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) { /* @@ -588,11 +892,23 @@ * smp_processor_id(). */ unsigned int sum; + int touched = 0; int cpu = smp_processor_id(); + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + u64 dummy; + int rc=0; + + /* check for other users first */ + if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) + == NOTIFY_STOP) { + rc = 1; + touched = 1; + } sum = per_cpu(irq_stat, cpu).apic_timer_irqs; - if (last_irq_sums[cpu] == sum) { + /* if the apic timer isn't firing, this cpu isn't doing much */ + if (!touched && last_irq_sums[cpu] == sum) { /* * Ayiee, looks like this CPU is stuck ... * wait a few IRQs (5 seconds) before doing the oops ... @@ -607,27 +923,59 @@ last_irq_sums[cpu] = sum; alert_counter[cpu] = 0; } - if (nmi_perfctr_msr) { - if (nmi_perfctr_msr == MSR_P4_IQ_COUNTER0) { - /* - * P4 quirks: - * - An overflown perfctr will assert its interrupt - * until the OVF flag in its CCCR is cleared. - * - LVTPC is masked on interrupt and must be - * unmasked by the LVTPC handler. + /* see if the nmi watchdog went off */ + if (wd->enabled) { + if (nmi_watchdog == NMI_LOCAL_APIC) { + rdmsrl(wd->perfctr_msr, dummy); + if (dummy & wd->check_bit){ + /* this wasn't a watchdog timer interrupt */ + goto done; + } + + /* only Intel P4 uses the cccr msr */ + if (wd->cccr_msr != 0) { + /* + * P4 quirks: + * - An overflown perfctr will assert its interrupt + * until the OVF flag in its CCCR is cleared. + * - LVTPC is masked on interrupt and must be + * unmasked by the LVTPC handler. + */ + rdmsrl(wd->cccr_msr, dummy); + dummy &= ~P4_CCCR_OVF; + wrmsrl(wd->cccr_msr, dummy); + apic_write(APIC_LVTPC, APIC_DM_NMI); + } + else if (wd->perfctr_msr == MSR_P6_PERFCTR0 || + wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) { + /* P6 based Pentium M need to re-unmask + * the apic vector but it doesn't hurt + * other P6 variant. + * ArchPerfom/Core Duo also needs this */ + apic_write(APIC_LVTPC, APIC_DM_NMI); + } + /* start the cycle over again */ + write_watchdog_counter(wd->perfctr_msr, NULL); + rc = 1; + } else if (nmi_watchdog == NMI_IO_APIC) { + /* don't know how to accurately check for this. + * just assume it was a watchdog timer interrupt + * This matches the old behaviour. */ - wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0); - apic_write(APIC_LVTPC, APIC_DM_NMI); + rc = 1; } - else if (nmi_perfctr_msr == MSR_P6_PERFCTR0 || - nmi_perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) { - /* Only P6 based Pentium M need to re-unmask - * the apic vector but it doesn't hurt - * other P6 variant */ - apic_write(APIC_LVTPC, APIC_DM_NMI); - } - write_watchdog_counter(NULL); } +done: + return rc; +} + +int do_nmi_callback(struct pt_regs * regs, int cpu) +{ +#ifdef CONFIG_SYSCTL + if (unknown_nmi_panic) + return unknown_nmi_panic_callback(regs, cpu); +#endif + return 0; } #ifdef CONFIG_SYSCTL @@ -637,36 +985,46 @@ unsigned char reason = get_nmi_reason(); char buf[64]; - if (!(reason & 0xc0)) { - sprintf(buf, "NMI received for unknown reason %02x\n", reason); - die_nmi(regs, buf); - } + sprintf(buf, "NMI received for unknown reason %02x\n", reason); + die_nmi(regs, buf); return 0; } /* - * proc handler for /proc/sys/kernel/unknown_nmi_panic + * proc handler for /proc/sys/kernel/nmi */ -int proc_unknown_nmi_panic(ctl_table *table, int write, struct file *file, +int proc_nmi_enabled(struct ctl_table *table, int write, struct file *file, void __user *buffer, size_t *length, loff_t *ppos) { int old_state; - old_state = unknown_nmi_panic; + nmi_watchdog_enabled = (atomic_read(&nmi_active) > 0) ? 1 : 0; + old_state = nmi_watchdog_enabled; proc_dointvec(table, write, file, buffer, length, ppos); - if (!!old_state == !!unknown_nmi_panic) + if (!!old_state == !!nmi_watchdog_enabled) return 0; - if (unknown_nmi_panic) { - if (reserve_lapic_nmi() < 0) { - unknown_nmi_panic = 0; - return -EBUSY; - } else { - set_nmi_callback(unknown_nmi_panic_callback); - } + if (atomic_read(&nmi_active) < 0) { + printk( KERN_WARNING "NMI watchdog is permanently disabled\n"); + return -EIO; + } + + if (nmi_watchdog == NMI_DEFAULT) { + if (nmi_known_cpu() > 0) + nmi_watchdog = NMI_LOCAL_APIC; + else + nmi_watchdog = NMI_IO_APIC; + } + + if (nmi_watchdog == NMI_LOCAL_APIC) { + if (nmi_watchdog_enabled) + enable_lapic_nmi_watchdog(); + else + disable_lapic_nmi_watchdog(); } else { - release_lapic_nmi(); - unset_nmi_callback(); + printk( KERN_WARNING + "NMI watchdog doesn't know what hardware to touch\n"); + return -EIO; } return 0; } @@ -675,7 +1033,11 @@ EXPORT_SYMBOL(nmi_active); EXPORT_SYMBOL(nmi_watchdog); -EXPORT_SYMBOL(reserve_lapic_nmi); -EXPORT_SYMBOL(release_lapic_nmi); +EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi); +EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit); +EXPORT_SYMBOL(reserve_perfctr_nmi); +EXPORT_SYMBOL(release_perfctr_nmi); +EXPORT_SYMBOL(reserve_evntsel_nmi); +EXPORT_SYMBOL(release_evntsel_nmi); EXPORT_SYMBOL(disable_timer_nmi_watchdog); EXPORT_SYMBOL(enable_timer_nmi_watchdog);
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c index 8657c73..8c190ca 100644 --- a/arch/i386/kernel/process.c +++ b/arch/i386/kernel/process.c
@@ -37,6 +37,7 @@ #include <linux/kallsyms.h> #include <linux/ptrace.h> #include <linux/random.h> +#include <linux/personality.h> #include <asm/uaccess.h> #include <asm/pgtable.h> @@ -320,15 +321,6 @@ * the "args". */ extern void kernel_thread_helper(void); -__asm__(".section .text\n" - ".align 4\n" - "kernel_thread_helper:\n\t" - "movl %edx,%eax\n\t" - "pushl %edx\n\t" - "call *%ebx\n\t" - "pushl %eax\n\t" - "call do_exit\n" - ".previous"); /* * Create a kernel thread @@ -346,7 +338,7 @@ regs.xes = __USER_DS; regs.orig_eax = -1; regs.eip = (unsigned long) kernel_thread_helper; - regs.xcs = __KERNEL_CS; + regs.xcs = __KERNEL_CS | get_kernel_rpl(); regs.eflags = X86_EFLAGS_IF | X86_EFLAGS_SF | X86_EFLAGS_PF | 0x2; /* Ok, create the new process.. */ @@ -905,7 +897,7 @@ unsigned long arch_align_stack(unsigned long sp) { - if (randomize_va_space) + if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) sp -= get_random_int() % 8192; return sp & ~0xf; }
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c index d3db03f..775f50e 100644 --- a/arch/i386/kernel/ptrace.c +++ b/arch/i386/kernel/ptrace.c
@@ -185,17 +185,17 @@ return addr; } -static inline int is_at_popf(struct task_struct *child, struct pt_regs *regs) +static inline int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs) { int i, copied; - unsigned char opcode[16]; + unsigned char opcode[15]; unsigned long addr = convert_eip_to_linear(child, regs); copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0); for (i = 0; i < copied; i++) { switch (opcode[i]) { - /* popf */ - case 0x9d: + /* popf and iret */ + case 0x9d: case 0xcf: return 1; /* opcode and address size prefixes */ case 0x66: case 0x67: @@ -247,7 +247,7 @@ * don't mark it as being "us" that set it, so that we * won't clear it by hand later. */ - if (is_at_popf(child, regs)) + if (is_setting_trap_flag(child, regs)) return; child->ptrace |= PT_DTRACE;
diff --git a/arch/i386/kernel/reboot.c b/arch/i386/kernel/reboot.c index 54cfeab..84278e0 100644 --- a/arch/i386/kernel/reboot.c +++ b/arch/i386/kernel/reboot.c
@@ -145,14 +145,10 @@ 0x000092000100ffffULL /* 16-bit real-mode 64k data at 0x00000100 */ }; -static struct -{ - unsigned short size __attribute__ ((packed)); - unsigned long long * base __attribute__ ((packed)); -} -real_mode_gdt = { sizeof (real_mode_gdt_entries) - 1, real_mode_gdt_entries }, -real_mode_idt = { 0x3ff, NULL }, -no_idt = { 0, NULL }; +static struct Xgt_desc_struct +real_mode_gdt = { sizeof (real_mode_gdt_entries) - 1, (long)real_mode_gdt_entries }, +real_mode_idt = { 0x3ff, 0 }, +no_idt = { 0, 0 }; /* This is 16-bit protected mode code to disable paging and the cache,
diff --git a/arch/i386/kernel/relocate_kernel.S b/arch/i386/kernel/relocate_kernel.S index d312616..f151d6f 100644 --- a/arch/i386/kernel/relocate_kernel.S +++ b/arch/i386/kernel/relocate_kernel.S
@@ -7,16 +7,138 @@ */ #include <linux/linkage.h> +#include <asm/page.h> +#include <asm/kexec.h> - /* - * Must be relocatable PIC code callable as a C function, that once - * it starts can not use the previous processes stack. - */ - .globl relocate_new_kernel +/* + * Must be relocatable PIC code callable as a C function + */ + +#define PTR(x) (x << 2) +#define PAGE_ALIGNED (1 << PAGE_SHIFT) +#define PAGE_ATTR 0x63 /* _PAGE_PRESENT|_PAGE_RW|_PAGE_ACCESSED|_PAGE_DIRTY */ +#define PAE_PGD_ATTR 0x01 /* _PAGE_PRESENT */ + + .text + .align PAGE_ALIGNED + .globl relocate_kernel +relocate_kernel: + movl 8(%esp), %ebp /* list of pages */ + +#ifdef CONFIG_X86_PAE + /* map the control page at its virtual address */ + + movl PTR(VA_PGD)(%ebp), %edi + movl PTR(VA_CONTROL_PAGE)(%ebp), %eax + andl $0xc0000000, %eax + shrl $27, %eax + addl %edi, %eax + + movl PTR(PA_PMD_0)(%ebp), %edx + orl $PAE_PGD_ATTR, %edx + movl %edx, (%eax) + + movl PTR(VA_PMD_0)(%ebp), %edi + movl PTR(VA_CONTROL_PAGE)(%ebp), %eax + andl $0x3fe00000, %eax + shrl $18, %eax + addl %edi, %eax + + movl PTR(PA_PTE_0)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) + + movl PTR(VA_PTE_0)(%ebp), %edi + movl PTR(VA_CONTROL_PAGE)(%ebp), %eax + andl $0x001ff000, %eax + shrl $9, %eax + addl %edi, %eax + + movl PTR(PA_CONTROL_PAGE)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) + + /* identity map the control page at its physical address */ + + movl PTR(VA_PGD)(%ebp), %edi + movl PTR(PA_CONTROL_PAGE)(%ebp), %eax + andl $0xc0000000, %eax + shrl $27, %eax + addl %edi, %eax + + movl PTR(PA_PMD_1)(%ebp), %edx + orl $PAE_PGD_ATTR, %edx + movl %edx, (%eax) + + movl PTR(VA_PMD_1)(%ebp), %edi + movl PTR(PA_CONTROL_PAGE)(%ebp), %eax + andl $0x3fe00000, %eax + shrl $18, %eax + addl %edi, %eax + + movl PTR(PA_PTE_1)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) + + movl PTR(VA_PTE_1)(%ebp), %edi + movl PTR(PA_CONTROL_PAGE)(%ebp), %eax + andl $0x001ff000, %eax + shrl $9, %eax + addl %edi, %eax + + movl PTR(PA_CONTROL_PAGE)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) +#else + /* map the control page at its virtual address */ + + movl PTR(VA_PGD)(%ebp), %edi + movl PTR(VA_CONTROL_PAGE)(%ebp), %eax + andl $0xffc00000, %eax + shrl $20, %eax + addl %edi, %eax + + movl PTR(PA_PTE_0)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) + + movl PTR(VA_PTE_0)(%ebp), %edi + movl PTR(VA_CONTROL_PAGE)(%ebp), %eax + andl $0x003ff000, %eax + shrl $10, %eax + addl %edi, %eax + + movl PTR(PA_CONTROL_PAGE)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) + + /* identity map the control page at its physical address */ + + movl PTR(VA_PGD)(%ebp), %edi + movl PTR(PA_CONTROL_PAGE)(%ebp), %eax + andl $0xffc00000, %eax + shrl $20, %eax + addl %edi, %eax + + movl PTR(PA_PTE_1)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) + + movl PTR(VA_PTE_1)(%ebp), %edi + movl PTR(PA_CONTROL_PAGE)(%ebp), %eax + andl $0x003ff000, %eax + shrl $10, %eax + addl %edi, %eax + + movl PTR(PA_CONTROL_PAGE)(%ebp), %edx + orl $PAGE_ATTR, %edx + movl %edx, (%eax) +#endif + relocate_new_kernel: /* read the arguments and say goodbye to the stack */ movl 4(%esp), %ebx /* page_list */ - movl 8(%esp), %ebp /* reboot_code_buffer */ + movl 8(%esp), %ebp /* list of pages */ movl 12(%esp), %edx /* start address */ movl 16(%esp), %ecx /* cpu_has_pae */ @@ -24,11 +146,26 @@ pushl $0 popfl - /* set a new stack at the bottom of our page... */ - lea 4096(%ebp), %esp + /* get physical address of control page now */ + /* this is impossible after page table switch */ + movl PTR(PA_CONTROL_PAGE)(%ebp), %edi - /* store the parameters back on the stack */ - pushl %edx /* store the start address */ + /* switch to new set of page tables */ + movl PTR(PA_PGD)(%ebp), %eax + movl %eax, %cr3 + + /* setup a new stack at the end of the physical control page */ + lea 4096(%edi), %esp + + /* jump to identity mapped page */ + movl %edi, %eax + addl $(identity_mapped - relocate_kernel), %eax + pushl %eax + ret + +identity_mapped: + /* store the start address on the stack */ + pushl %edx /* Set cr0 to a known state: * 31 0 == Paging disabled @@ -113,8 +250,3 @@ xorl %edi, %edi xorl %ebp, %ebp ret -relocate_new_kernel_end: - - .globl relocate_new_kernel_size -relocate_new_kernel_size: - .long relocate_new_kernel_end - relocate_new_kernel
diff --git a/arch/i386/kernel/semaphore.c b/arch/i386/kernel/semaphore.c deleted file mode 100644 index 98352c3..0000000 --- a/arch/i386/kernel/semaphore.c +++ /dev/null
@@ -1,134 +0,0 @@ -/* - * i386 semaphore implementation. - * - * (C) Copyright 1999 Linus Torvalds - * - * Portions Copyright 1999 Red Hat, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * - * rw semaphores implemented November 1999 by Benjamin LaHaise <bcrl@kvack.org> - */ -#include <asm/semaphore.h> - -/* - * The semaphore operations have a special calling sequence that - * allow us to do a simpler in-line version of them. These routines - * need to convert that sequence back into the C sequence when - * there is contention on the semaphore. - * - * %eax contains the semaphore pointer on entry. Save the C-clobbered - * registers (%eax, %edx and %ecx) except %eax whish is either a return - * value or just clobbered.. - */ -asm( -".section .sched.text\n" -".align 4\n" -".globl __down_failed\n" -"__down_failed:\n\t" -#if defined(CONFIG_FRAME_POINTER) - "pushl %ebp\n\t" - "movl %esp,%ebp\n\t" -#endif - "pushl %edx\n\t" - "pushl %ecx\n\t" - "call __down\n\t" - "popl %ecx\n\t" - "popl %edx\n\t" -#if defined(CONFIG_FRAME_POINTER) - "movl %ebp,%esp\n\t" - "popl %ebp\n\t" -#endif - "ret" -); - -asm( -".section .sched.text\n" -".align 4\n" -".globl __down_failed_interruptible\n" -"__down_failed_interruptible:\n\t" -#if defined(CONFIG_FRAME_POINTER) - "pushl %ebp\n\t" - "movl %esp,%ebp\n\t" -#endif - "pushl %edx\n\t" - "pushl %ecx\n\t" - "call __down_interruptible\n\t" - "popl %ecx\n\t" - "popl %edx\n\t" -#if defined(CONFIG_FRAME_POINTER) - "movl %ebp,%esp\n\t" - "popl %ebp\n\t" -#endif - "ret" -); - -asm( -".section .sched.text\n" -".align 4\n" -".globl __down_failed_trylock\n" -"__down_failed_trylock:\n\t" -#if defined(CONFIG_FRAME_POINTER) - "pushl %ebp\n\t" - "movl %esp,%ebp\n\t" -#endif - "pushl %edx\n\t" - "pushl %ecx\n\t" - "call __down_trylock\n\t" - "popl %ecx\n\t" - "popl %edx\n\t" -#if defined(CONFIG_FRAME_POINTER) - "movl %ebp,%esp\n\t" - "popl %ebp\n\t" -#endif - "ret" -); - -asm( -".section .sched.text\n" -".align 4\n" -".globl __up_wakeup\n" -"__up_wakeup:\n\t" - "pushl %edx\n\t" - "pushl %ecx\n\t" - "call __up\n\t" - "popl %ecx\n\t" - "popl %edx\n\t" - "ret" -); - -/* - * rw spinlock fallbacks - */ -#if defined(CONFIG_SMP) -asm( -".section .sched.text\n" -".align 4\n" -".globl __write_lock_failed\n" -"__write_lock_failed:\n\t" - LOCK_PREFIX "addl $" RW_LOCK_BIAS_STR ",(%eax)\n" -"1: rep; nop\n\t" - "cmpl $" RW_LOCK_BIAS_STR ",(%eax)\n\t" - "jne 1b\n\t" - LOCK_PREFIX "subl $" RW_LOCK_BIAS_STR ",(%eax)\n\t" - "jnz __write_lock_failed\n\t" - "ret" -); - -asm( -".section .sched.text\n" -".align 4\n" -".globl __read_lock_failed\n" -"__read_lock_failed:\n\t" - LOCK_PREFIX "incl (%eax)\n" -"1: rep; nop\n\t" - "cmpl $1,(%eax)\n\t" - "js 1b\n\t" - LOCK_PREFIX "decl (%eax)\n\t" - "js __read_lock_failed\n\t" - "ret" -); -#endif
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index f168220..814cdeb 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c
@@ -53,6 +53,7 @@ #include <asm/apic.h> #include <asm/e820.h> #include <asm/mpspec.h> +#include <asm/mmzone.h> #include <asm/setup.h> #include <asm/arch_hooks.h> #include <asm/sections.h> @@ -89,18 +90,6 @@ unsigned long mmu_cr4_features; -#ifdef CONFIG_ACPI - int acpi_disabled = 0; -#else - int acpi_disabled = 1; -#endif -EXPORT_SYMBOL(acpi_disabled); - -#ifdef CONFIG_ACPI -int __initdata acpi_force = 0; -extern acpi_interrupt_flags acpi_sci_flags; -#endif - /* for MCA, but anyone else can use it if they want */ unsigned int machine_id; #ifdef CONFIG_MCA @@ -148,7 +137,6 @@ struct e820map e820; extern void early_cpu_init(void); -extern void generic_apic_probe(char *); extern int root_mountflags; unsigned long saved_videomode; @@ -700,238 +688,150 @@ } #endif -static void __init parse_cmdline_early (char ** cmdline_p) +static int __initdata user_defined_memmap = 0; + +/* + * "mem=nopentium" disables the 4MB page tables. + * "mem=XXX[kKmM]" defines a memory region from HIGH_MEM + * to <mem>, overriding the bios size. + * "memmap=XXX[KkmM]@XXX[KkmM]" defines a memory region from + * <start> to <start>+<mem>, overriding the bios size. + * + * HPA tells me bootloaders need to parse mem=, so no new + * option should be mem= [also see Documentation/i386/boot.txt] + */ +static int __init parse_mem(char *arg) { - char c = ' ', *to = command_line, *from = saved_command_line; - int len = 0; - int userdef = 0; + if (!arg) + return -EINVAL; - /* Save unparsed command line copy for /proc/cmdline */ - saved_command_line[COMMAND_LINE_SIZE-1] = '\0'; - - for (;;) { - if (c != ' ') - goto next_char; - /* - * "mem=nopentium" disables the 4MB page tables. - * "mem=XXX[kKmM]" defines a memory region from HIGH_MEM - * to <mem>, overriding the bios size. - * "memmap=XXX[KkmM]@XXX[KkmM]" defines a memory region from - * <start> to <start>+<mem>, overriding the bios size. - * - * HPA tells me bootloaders need to parse mem=, so no new - * option should be mem= [also see Documentation/i386/boot.txt] + if (strcmp(arg, "nopentium") == 0) { + clear_bit(X86_FEATURE_PSE, boot_cpu_data.x86_capability); + disable_pse = 1; + } else { + /* If the user specifies memory size, we + * limit the BIOS-provided memory map to + * that size. exactmap can be used to specify + * the exact map. mem=number can be used to + * trim the existing memory map. */ - if (!memcmp(from, "mem=", 4)) { - if (to != command_line) - to--; - if (!memcmp(from+4, "nopentium", 9)) { - from += 9+4; - clear_bit(X86_FEATURE_PSE, boot_cpu_data.x86_capability); - disable_pse = 1; - } else { - /* If the user specifies memory size, we - * limit the BIOS-provided memory map to - * that size. exactmap can be used to specify - * the exact map. mem=number can be used to - * trim the existing memory map. - */ - unsigned long long mem_size; + unsigned long long mem_size; - mem_size = memparse(from+4, &from); - limit_regions(mem_size); - userdef=1; - } - } - - else if (!memcmp(from, "memmap=", 7)) { - if (to != command_line) - to--; - if (!memcmp(from+7, "exactmap", 8)) { -#ifdef CONFIG_CRASH_DUMP - /* If we are doing a crash dump, we - * still need to know the real mem - * size before original memory map is - * reset. - */ - find_max_pfn(); - saved_max_pfn = max_pfn; -#endif - from += 8+7; - e820.nr_map = 0; - userdef = 1; - } else { - /* If the user specifies memory size, we - * limit the BIOS-provided memory map to - * that size. exactmap can be used to specify - * the exact map. mem=number can be used to - * trim the existing memory map. - */ - unsigned long long start_at, mem_size; - - mem_size = memparse(from+7, &from); - if (*from == '@') { - start_at = memparse(from+1, &from); - add_memory_region(start_at, mem_size, E820_RAM); - } else if (*from == '#') { - start_at = memparse(from+1, &from); - add_memory_region(start_at, mem_size, E820_ACPI); - } else if (*from == '$') { - start_at = memparse(from+1, &from); - add_memory_region(start_at, mem_size, E820_RESERVED); - } else { - limit_regions(mem_size); - userdef=1; - } - } - } - - else if (!memcmp(from, "noexec=", 7)) - noexec_setup(from + 7); - - -#ifdef CONFIG_X86_SMP - /* - * If the BIOS enumerates physical processors before logical, - * maxcpus=N at enumeration-time can be used to disable HT. - */ - else if (!memcmp(from, "maxcpus=", 8)) { - extern unsigned int maxcpus; - - maxcpus = simple_strtoul(from + 8, NULL, 0); - } -#endif - -#ifdef CONFIG_ACPI - /* "acpi=off" disables both ACPI table parsing and interpreter */ - else if (!memcmp(from, "acpi=off", 8)) { - disable_acpi(); - } - - /* acpi=force to over-ride black-list */ - else if (!memcmp(from, "acpi=force", 10)) { - acpi_force = 1; - acpi_ht = 1; - acpi_disabled = 0; - } - - /* acpi=strict disables out-of-spec workarounds */ - else if (!memcmp(from, "acpi=strict", 11)) { - acpi_strict = 1; - } - - /* Limit ACPI just to boot-time to enable HT */ - else if (!memcmp(from, "acpi=ht", 7)) { - if (!acpi_force) - disable_acpi(); - acpi_ht = 1; - } - - /* "pci=noacpi" disable ACPI IRQ routing and PCI scan */ - else if (!memcmp(from, "pci=noacpi", 10)) { - acpi_disable_pci(); - } - /* "acpi=noirq" disables ACPI interrupt routing */ - else if (!memcmp(from, "acpi=noirq", 10)) { - acpi_noirq_set(); - } - - else if (!memcmp(from, "acpi_sci=edge", 13)) - acpi_sci_flags.trigger = 1; - - else if (!memcmp(from, "acpi_sci=level", 14)) - acpi_sci_flags.trigger = 3; - - else if (!memcmp(from, "acpi_sci=high", 13)) - acpi_sci_flags.polarity = 1; - - else if (!memcmp(from, "acpi_sci=low", 12)) - acpi_sci_flags.polarity = 3; - -#ifdef CONFIG_X86_IO_APIC - else if (!memcmp(from, "acpi_skip_timer_override", 24)) - acpi_skip_timer_override = 1; - - if (!memcmp(from, "disable_timer_pin_1", 19)) - disable_timer_pin_1 = 1; - if (!memcmp(from, "enable_timer_pin_1", 18)) - disable_timer_pin_1 = -1; - - /* disable IO-APIC */ - else if (!memcmp(from, "noapic", 6)) - disable_ioapic_setup(); -#endif /* CONFIG_X86_IO_APIC */ -#endif /* CONFIG_ACPI */ - -#ifdef CONFIG_X86_LOCAL_APIC - /* enable local APIC */ - else if (!memcmp(from, "lapic", 5)) - lapic_enable(); - - /* disable local APIC */ - else if (!memcmp(from, "nolapic", 6)) - lapic_disable(); -#endif /* CONFIG_X86_LOCAL_APIC */ - -#ifdef CONFIG_KEXEC - /* crashkernel=size@addr specifies the location to reserve for - * a crash kernel. By reserving this memory we guarantee - * that linux never set's it up as a DMA target. - * Useful for holding code to do something appropriate - * after a kernel panic. - */ - else if (!memcmp(from, "crashkernel=", 12)) { - unsigned long size, base; - size = memparse(from+12, &from); - if (*from == '@') { - base = memparse(from+1, &from); - /* FIXME: Do I want a sanity check - * to validate the memory range? - */ - crashk_res.start = base; - crashk_res.end = base + size - 1; - } - } -#endif -#ifdef CONFIG_PROC_VMCORE - /* elfcorehdr= specifies the location of elf core header - * stored by the crashed kernel. - */ - else if (!memcmp(from, "elfcorehdr=", 11)) - elfcorehdr_addr = memparse(from+11, &from); -#endif - - /* - * highmem=size forces highmem to be exactly 'size' bytes. - * This works even on boxes that have no highmem otherwise. - * This also works to reduce highmem size on bigger boxes. - */ - else if (!memcmp(from, "highmem=", 8)) - highmem_pages = memparse(from+8, &from) >> PAGE_SHIFT; - - /* - * vmalloc=size forces the vmalloc area to be exactly 'size' - * bytes. This can be used to increase (or decrease) the - * vmalloc area - the default is 128m. - */ - else if (!memcmp(from, "vmalloc=", 8)) - __VMALLOC_RESERVE = memparse(from+8, &from); - - next_char: - c = *(from++); - if (!c) - break; - if (COMMAND_LINE_SIZE <= ++len) - break; - *(to++) = c; + mem_size = memparse(arg, &arg); + limit_regions(mem_size); + user_defined_memmap = 1; } - *to = '\0'; - *cmdline_p = command_line; - if (userdef) { - printk(KERN_INFO "user-defined physical RAM map:\n"); - print_memory_map("user"); - } + return 0; } +early_param("mem", parse_mem); + +static int __init parse_memmap(char *arg) +{ + if (!arg) + return -EINVAL; + + if (strcmp(arg, "exactmap") == 0) { +#ifdef CONFIG_CRASH_DUMP + /* If we are doing a crash dump, we + * still need to know the real mem + * size before original memory map is + * reset. + */ + find_max_pfn(); + saved_max_pfn = max_pfn; +#endif + e820.nr_map = 0; + user_defined_memmap = 1; + } else { + /* If the user specifies memory size, we + * limit the BIOS-provided memory map to + * that size. exactmap can be used to specify + * the exact map. mem=number can be used to + * trim the existing memory map. + */ + unsigned long long start_at, mem_size; + + mem_size = memparse(arg, &arg); + if (*arg == '@') { + start_at = memparse(arg+1, &arg); + add_memory_region(start_at, mem_size, E820_RAM); + } else if (*arg == '#') { + start_at = memparse(arg+1, &arg); + add_memory_region(start_at, mem_size, E820_ACPI); + } else if (*arg == '$') { + start_at = memparse(arg+1, &arg); + add_memory_region(start_at, mem_size, E820_RESERVED); + } else { + limit_regions(mem_size); + user_defined_memmap = 1; + } + } + return 0; +} +early_param("memmap", parse_memmap); + +#ifdef CONFIG_PROC_VMCORE +/* elfcorehdr= specifies the location of elf core header + * stored by the crashed kernel. + */ +static int __init parse_elfcorehdr(char *arg) +{ + if (!arg) + return -EINVAL; + + elfcorehdr_addr = memparse(arg, &arg); + return 0; +} +early_param("elfcorehdr", parse_elfcorehdr); +#endif /* CONFIG_PROC_VMCORE */ + +/* + * highmem=size forces highmem to be exactly 'size' bytes. + * This works even on boxes that have no highmem otherwise. + * This also works to reduce highmem size on bigger boxes. + */ +static int __init parse_highmem(char *arg) +{ + if (!arg) + return -EINVAL; + + highmem_pages = memparse(arg, &arg) >> PAGE_SHIFT; + return 0; +} +early_param("highmem", parse_highmem); + +/* + * vmalloc=size forces the vmalloc area to be exactly 'size' + * bytes. This can be used to increase (or decrease) the + * vmalloc area - the default is 128m. + */ +static int __init parse_vmalloc(char *arg) +{ + if (!arg) + return -EINVAL; + + __VMALLOC_RESERVE = memparse(arg, &arg); + return 0; +} +early_param("vmalloc", parse_vmalloc); + +/* + * reservetop=size reserves a hole at the top of the kernel address space which + * a hypervisor can load into later. Needed for dynamically loaded hypervisors, + * so relocating the fixmap can be done before paging initialization. + */ +static int __init parse_reservetop(char *arg) +{ + unsigned long address; + + if (!arg) + return -EINVAL; + + address = memparse(arg, &arg); + reserve_top_address(address); + return 0; +} +early_param("reservetop", parse_reservetop); /* * Callback for efi_memory_walk. @@ -1170,6 +1070,14 @@ } printk(KERN_NOTICE "%ldMB HIGHMEM available.\n", pages_to_mb(highend_pfn - highstart_pfn)); + num_physpages = highend_pfn; + high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1; +#else + num_physpages = max_low_pfn; + high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1; +#endif +#ifdef CONFIG_FLATMEM + max_mapnr = num_physpages; #endif printk(KERN_NOTICE "%ldMB LOWMEM available.\n", pages_to_mb(max_low_pfn)); @@ -1181,22 +1089,20 @@ void __init zone_sizes_init(void) { - unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0}; - unsigned int max_dma, low; - - max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; - low = max_low_pfn; - - if (low < max_dma) - zones_size[ZONE_DMA] = low; - else { - zones_size[ZONE_DMA] = max_dma; - zones_size[ZONE_NORMAL] = low - max_dma; #ifdef CONFIG_HIGHMEM - zones_size[ZONE_HIGHMEM] = highend_pfn - low; + unsigned long max_zone_pfns[MAX_NR_ZONES] = { + virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT, + max_low_pfn, + highend_pfn}; + add_active_range(0, 0, highend_pfn); +#else + unsigned long max_zone_pfns[MAX_NR_ZONES] = { + virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT, + max_low_pfn}; + add_active_range(0, 0, max_low_pfn); #endif - } - free_area_init(zones_size); + + free_area_init_nodes(max_zone_pfns); } #else extern unsigned long __init setup_memory(void); @@ -1258,7 +1164,7 @@ */ find_smp_config(); #endif - + numa_kva_reserve(); #ifdef CONFIG_BLK_DEV_INITRD if (LOADER_TYPE && INITRD_START) { if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) { @@ -1499,17 +1405,15 @@ data_resource.start = virt_to_phys(_etext); data_resource.end = virt_to_phys(_edata)-1; - parse_cmdline_early(cmdline_p); + parse_early_param(); -#ifdef CONFIG_EARLY_PRINTK - { - char *s = strstr(*cmdline_p, "earlyprintk="); - if (s) { - setup_early_printk(strchr(s, '=') + 1); - printk("early console enabled\n"); - } + if (user_defined_memmap) { + printk(KERN_INFO "user-defined physical RAM map:\n"); + print_memory_map("user"); } -#endif + + strlcpy(command_line, saved_command_line, COMMAND_LINE_SIZE); + *cmdline_p = command_line; max_low_pfn = setup_memory(); @@ -1538,7 +1442,7 @@ dmi_scan_machine(); #ifdef CONFIG_X86_GENERICARCH - generic_apic_probe(*cmdline_p); + generic_apic_probe(); #endif if (efi_enabled) efi_map_memmap(); @@ -1550,9 +1454,11 @@ acpi_boot_table_init(); #endif +#ifdef CONFIG_PCI #ifdef CONFIG_X86_IO_APIC check_acpi_pci(); /* Checks more than just ACPI actually */ #endif +#endif #ifdef CONFIG_ACPI acpi_boot_init();
diff --git a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c index c10789d..465188e 100644 --- a/arch/i386/kernel/smp.c +++ b/arch/i386/kernel/smp.c
@@ -634,3 +634,69 @@ } } +/* + * this function sends a 'generic call function' IPI to one other CPU + * in the system. + * + * cpu is a standard Linux logical CPU number. + */ +static void +__smp_call_function_single(int cpu, void (*func) (void *info), void *info, + int nonatomic, int wait) +{ + struct call_data_struct data; + int cpus = 1; + + data.func = func; + data.info = info; + atomic_set(&data.started, 0); + data.wait = wait; + if (wait) + atomic_set(&data.finished, 0); + + call_data = &data; + wmb(); + /* Send a message to all other CPUs and wait for them to respond */ + send_IPI_mask(cpumask_of_cpu(cpu), CALL_FUNCTION_VECTOR); + + /* Wait for response */ + while (atomic_read(&data.started) != cpus) + cpu_relax(); + + if (!wait) + return; + + while (atomic_read(&data.finished) != cpus) + cpu_relax(); +} + +/* + * smp_call_function_single - Run a function on another CPU + * @func: The function to run. This must be fast and non-blocking. + * @info: An arbitrary pointer to pass to the function. + * @nonatomic: Currently unused. + * @wait: If true, wait until function has completed on other CPUs. + * + * Retrurns 0 on success, else a negative status code. + * + * Does not return until the remote CPU is nearly ready to execute <func> + * or is or has executed. + */ + +int smp_call_function_single(int cpu, void (*func) (void *info), void *info, + int nonatomic, int wait) +{ + /* prevent preemption and reschedule on another processor */ + int me = get_cpu(); + if (cpu == me) { + WARN_ON(1); + put_cpu(); + return -EBUSY; + } + spin_lock_bh(&call_lock); + __smp_call_function_single(cpu, func, info, nonatomic, wait); + spin_unlock_bh(&call_lock); + put_cpu(); + return 0; +} +EXPORT_SYMBOL(smp_call_function_single);
diff --git a/arch/i386/kernel/smpboot.c b/arch/i386/kernel/smpboot.c index f948419..020d873 100644 --- a/arch/i386/kernel/smpboot.c +++ b/arch/i386/kernel/smpboot.c
@@ -177,6 +177,9 @@ */ if ((c->x86_vendor == X86_VENDOR_AMD) && (c->x86 == 6)) { + if (num_possible_cpus() == 1) + goto valid_k7; + /* Athlon 660/661 is valid. */ if ((c->x86_model==6) && ((c->x86_mask==0) || (c->x86_mask==1))) goto valid_k7; @@ -642,9 +645,13 @@ { int cpu = smp_processor_id(); int apicid = logical_smp_processor_id(); + int node = apicid_to_node(apicid); + + if (!node_online(node)) + node = first_online_node; cpu_2_logical_apicid[cpu] = apicid; - map_cpu_to_node(cpu, apicid_to_node(apicid)); + map_cpu_to_node(cpu, node); } static void unmap_cpu_to_logical_apicid(int cpu) @@ -1372,7 +1379,8 @@ */ if (cpu == 0) return -EBUSY; - + if (nmi_watchdog == NMI_LOCAL_APIC) + stop_apic_nmi_watchdog(NULL); clear_local_APIC(); /* Allow any queued timer interrupts to get serviced */ local_irq_enable(); @@ -1486,3 +1494,16 @@ /* IPI for generic function call */ set_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt); } + +/* + * If the BIOS enumerates physical processors before logical, + * maxcpus=N at enumeration-time can be used to disable HT. + */ +static int __init parse_maxcpus(char *arg) +{ + extern unsigned int maxcpus; + + maxcpus = simple_strtoul(arg, NULL, 0); + return 0; +} +early_param("maxcpus", parse_maxcpus);
diff --git a/arch/i386/kernel/srat.c b/arch/i386/kernel/srat.c index b1809c9..3241312 100644 --- a/arch/i386/kernel/srat.c +++ b/arch/i386/kernel/srat.c
@@ -42,7 +42,7 @@ #define PXM_BITMAP_LEN (MAX_PXM_DOMAINS / 8) static u8 pxm_bitmap[PXM_BITMAP_LEN]; /* bitmap of proximity domains */ -#define MAX_CHUNKS_PER_NODE 4 +#define MAX_CHUNKS_PER_NODE 3 #define MAXCHUNKS (MAX_CHUNKS_PER_NODE * MAX_NUMNODES) struct node_memory_chunk_s { unsigned long start_pfn; @@ -54,8 +54,6 @@ static struct node_memory_chunk_s node_memory_chunk[MAXCHUNKS]; static int num_memory_chunks; /* total number of memory chunks */ -static int zholes_size_init; -static unsigned long zholes_size[MAX_NUMNODES * MAX_NR_ZONES]; extern void * boot_ioremap(unsigned long, unsigned long); @@ -135,50 +133,6 @@ "enabled and removable" : "enabled" ) ); } -#if MAX_NR_ZONES != 4 -#error "MAX_NR_ZONES != 4, chunk_to_zone requires review" -#endif -/* Take a chunk of pages from page frame cstart to cend and count the number - * of pages in each zone, returned via zones[]. - */ -static __init void chunk_to_zones(unsigned long cstart, unsigned long cend, - unsigned long *zones) -{ - unsigned long max_dma; - extern unsigned long max_low_pfn; - - int z; - unsigned long rend; - - /* FIXME: MAX_DMA_ADDRESS and max_low_pfn are trying to provide - * similarly scoped information and should be handled in a consistant - * manner. - */ - max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; - - /* Split the hole into the zones in which it falls. Repeatedly - * take the segment in which the remaining hole starts, round it - * to the end of that zone. - */ - memset(zones, 0, MAX_NR_ZONES * sizeof(long)); - while (cstart < cend) { - if (cstart < max_dma) { - z = ZONE_DMA; - rend = (cend < max_dma)? cend : max_dma; - - } else if (cstart < max_low_pfn) { - z = ZONE_NORMAL; - rend = (cend < max_low_pfn)? cend : max_low_pfn; - - } else { - z = ZONE_HIGHMEM; - rend = cend; - } - zones[z] += rend - cstart; - cstart = rend; - } -} - /* * The SRAT table always lists ascending addresses, so can always * assume that the first "start" address that you see is the real @@ -223,7 +177,6 @@ memset(pxm_bitmap, 0, sizeof(pxm_bitmap)); /* init proximity domain bitmap */ memset(node_memory_chunk, 0, sizeof(node_memory_chunk)); - memset(zholes_size, 0, sizeof(zholes_size)); num_memory_chunks = 0; while (p < end) { @@ -287,6 +240,7 @@ printk("chunk %d nid %d start_pfn %08lx end_pfn %08lx\n", j, chunk->nid, chunk->start_pfn, chunk->end_pfn); node_read_chunk(chunk->nid, chunk); + add_active_range(chunk->nid, chunk->start_pfn, chunk->end_pfn); } for_each_online_node(nid) { @@ -395,57 +349,7 @@ return acpi20_parse_srat((struct acpi_table_srat *)header); } out_err: + remove_all_active_ranges(); printk("failed to get NUMA memory information from SRAT table\n"); return 0; } - -/* For each node run the memory list to determine whether there are - * any memory holes. For each hole determine which ZONE they fall - * into. - * - * NOTE#1: this requires knowledge of the zone boundries and so - * _cannot_ be performed before those are calculated in setup_memory. - * - * NOTE#2: we rely on the fact that the memory chunks are ordered by - * start pfn number during setup. - */ -static void __init get_zholes_init(void) -{ - int nid; - int c; - int first; - unsigned long end = 0; - - for_each_online_node(nid) { - first = 1; - for (c = 0; c < num_memory_chunks; c++){ - if (node_memory_chunk[c].nid == nid) { - if (first) { - end = node_memory_chunk[c].end_pfn; - first = 0; - - } else { - /* Record any gap between this chunk - * and the previous chunk on this node - * against the zones it spans. - */ - chunk_to_zones(end, - node_memory_chunk[c].start_pfn, - &zholes_size[nid * MAX_NR_ZONES]); - } - } - } - } -} - -unsigned long * __init get_zholes_size(int nid) -{ - if (!zholes_size_init) { - zholes_size_init++; - get_zholes_init(); - } - if (nid >= MAX_NUMNODES || !node_online(nid)) - printk("%s: nid = %d is invalid/offline. num_online_nodes = %d", - __FUNCTION__, nid, num_online_nodes()); - return &zholes_size[nid * MAX_NR_ZONES]; -}
diff --git a/arch/i386/kernel/stacktrace.c b/arch/i386/kernel/stacktrace.c deleted file mode 100644 index e62a037..0000000 --- a/arch/i386/kernel/stacktrace.c +++ /dev/null
@@ -1,98 +0,0 @@ -/* - * arch/i386/kernel/stacktrace.c - * - * Stack trace management functions - * - * Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com> - */ -#include <linux/sched.h> -#include <linux/stacktrace.h> - -static inline int valid_stack_ptr(struct thread_info *tinfo, void *p) -{ - return p > (void *)tinfo && - p < (void *)tinfo + THREAD_SIZE - 3; -} - -/* - * Save stack-backtrace addresses into a stack_trace buffer: - */ -static inline unsigned long -save_context_stack(struct stack_trace *trace, unsigned int skip, - struct thread_info *tinfo, unsigned long *stack, - unsigned long ebp) -{ - unsigned long addr; - -#ifdef CONFIG_FRAME_POINTER - while (valid_stack_ptr(tinfo, (void *)ebp)) { - addr = *(unsigned long *)(ebp + 4); - if (!skip) - trace->entries[trace->nr_entries++] = addr; - else - skip--; - if (trace->nr_entries >= trace->max_entries) - break; - /* - * break out of recursive entries (such as - * end_of_stack_stop_unwind_function): - */ - if (ebp == *(unsigned long *)ebp) - break; - - ebp = *(unsigned long *)ebp; - } -#else - while (valid_stack_ptr(tinfo, stack)) { - addr = *stack++; - if (__kernel_text_address(addr)) { - if (!skip) - trace->entries[trace->nr_entries++] = addr; - else - skip--; - if (trace->nr_entries >= trace->max_entries) - break; - } - } -#endif - - return ebp; -} - -/* - * Save stack-backtrace addresses into a stack_trace buffer. - * If all_contexts is set, all contexts (hardirq, softirq and process) - * are saved. If not set then only the current context is saved. - */ -void save_stack_trace(struct stack_trace *trace, - struct task_struct *task, int all_contexts, - unsigned int skip) -{ - unsigned long ebp; - unsigned long *stack = &ebp; - - WARN_ON(trace->nr_entries || !trace->max_entries); - - if (!task || task == current) { - /* Grab ebp right from our regs: */ - asm ("movl %%ebp, %0" : "=r" (ebp)); - } else { - /* ebp is the last reg pushed by switch_to(): */ - ebp = *(unsigned long *) task->thread.esp; - } - - while (1) { - struct thread_info *context = (struct thread_info *) - ((unsigned long)stack & (~(THREAD_SIZE - 1))); - - ebp = save_context_stack(trace, skip, context, stack, ebp); - stack = (unsigned long *)context->previous_esp; - if (!all_contexts || !stack || - trace->nr_entries >= trace->max_entries) - break; - trace->entries[trace->nr_entries++] = ULONG_MAX; - if (trace->nr_entries >= trace->max_entries) - break; - } -} -
diff --git a/arch/i386/kernel/syscall_table.S b/arch/i386/kernel/syscall_table.S index dd63d47..7e639f7 100644 --- a/arch/i386/kernel/syscall_table.S +++ b/arch/i386/kernel/syscall_table.S
@@ -317,3 +317,4 @@ .long sys_tee /* 315 */ .long sys_vmsplice .long sys_move_pages + .long sys_getcpu
diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c index edd00f6..86944ac 100644 --- a/arch/i386/kernel/time.c +++ b/arch/i386/kernel/time.c
@@ -130,18 +130,33 @@ int timer_ack; -#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER) unsigned long profile_pc(struct pt_regs *regs) { unsigned long pc = instruction_pointer(regs); - if (!user_mode_vm(regs) && in_lock_functions(pc)) +#ifdef CONFIG_SMP + if (!user_mode_vm(regs) && in_lock_functions(pc)) { +#ifdef CONFIG_FRAME_POINTER return *(unsigned long *)(regs->ebp + 4); - +#else + unsigned long *sp; + if ((regs->xcs & 3) == 0) + sp = (unsigned long *)®s->esp; + else + sp = (unsigned long *)regs->esp; + /* Return address is either directly at stack pointer + or above a saved eflags. Eflags has bits 22-31 zero, + kernel addresses don't. */ + if (sp[0] >> 22) + return sp[0]; + if (sp[1] >> 22) + return sp[1]; +#endif + } +#endif return pc; } EXPORT_SYMBOL(profile_pc); -#endif /* * This is the same as the above, except we _also_ save the current @@ -270,16 +285,19 @@ mod_timer(&sync_cmos_timer, jiffies + 1); } -static long clock_cmos_diff, sleep_start; +static long clock_cmos_diff; +static unsigned long sleep_start; static int timer_suspend(struct sys_device *dev, pm_message_t state) { /* * Estimate time zone so that set_time can update the clock */ - clock_cmos_diff = -get_cmos_time(); + unsigned long ctime = get_cmos_time(); + + clock_cmos_diff = -ctime; clock_cmos_diff += get_seconds(); - sleep_start = get_cmos_time(); + sleep_start = ctime; return 0; } @@ -287,18 +305,29 @@ { unsigned long flags; unsigned long sec; - unsigned long sleep_length; + unsigned long ctime = get_cmos_time(); + long sleep_length = (ctime - sleep_start) * HZ; + struct timespec ts; + if (sleep_length < 0) { + printk(KERN_WARNING "CMOS clock skew detected in timer resume!\n"); + /* The time after the resume must not be earlier than the time + * before the suspend or some nasty things will happen + */ + sleep_length = 0; + ctime = sleep_start; + } #ifdef CONFIG_HPET_TIMER if (is_hpet_enabled()) hpet_reenable(); #endif setup_pit_timer(); - sec = get_cmos_time() + clock_cmos_diff; - sleep_length = (get_cmos_time() - sleep_start) * HZ; + + sec = ctime + clock_cmos_diff; + ts.tv_sec = sec; + ts.tv_nsec = 0; + do_settimeofday(&ts); write_seqlock_irqsave(&xtime_lock, flags); - xtime.tv_sec = sec; - xtime.tv_nsec = 0; jiffies_64 += sleep_length; wall_jiffies += sleep_length; write_sequnlock_irqrestore(&xtime_lock, flags); @@ -334,10 +363,11 @@ /* Duplicate of time_init() below, with hpet_enable part added */ static void __init hpet_time_init(void) { - xtime.tv_sec = get_cmos_time(); - xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ); - set_normalized_timespec(&wall_to_monotonic, - -xtime.tv_sec, -xtime.tv_nsec); + struct timespec ts; + ts.tv_sec = get_cmos_time(); + ts.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ); + + do_settimeofday(&ts); if ((hpet_enable() >= 0) && hpet_use_timer) { printk("Using HPET for base-timer\n"); @@ -349,6 +379,7 @@ void __init time_init(void) { + struct timespec ts; #ifdef CONFIG_HPET_TIMER if (is_hpet_capable()) { /* @@ -359,10 +390,10 @@ return; } #endif - xtime.tv_sec = get_cmos_time(); - xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ); - set_normalized_timespec(&wall_to_monotonic, - -xtime.tv_sec, -xtime.tv_nsec); + ts.tv_sec = get_cmos_time(); + ts.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ); + + do_settimeofday(&ts); time_init_hook(); }
diff --git a/arch/i386/kernel/time_hpet.c b/arch/i386/kernel/time_hpet.c index 14a1376..6bf14a4 100644 --- a/arch/i386/kernel/time_hpet.c +++ b/arch/i386/kernel/time_hpet.c
@@ -301,23 +301,25 @@ hpet_rtc_int_freq = DEFAULT_RTC_INT_FREQ; local_irq_save(flags); + cnt = hpet_readl(HPET_COUNTER); cnt += ((hpet_tick*HZ)/hpet_rtc_int_freq); hpet_writel(cnt, HPET_T1_CMP); hpet_t1_cmp = cnt; - local_irq_restore(flags); cfg = hpet_readl(HPET_T1_CFG); cfg &= ~HPET_TN_PERIODIC; cfg |= HPET_TN_ENABLE | HPET_TN_32BIT; hpet_writel(cfg, HPET_T1_CFG); + local_irq_restore(flags); + return 1; } static void hpet_rtc_timer_reinit(void) { - unsigned int cfg, cnt; + unsigned int cfg, cnt, ticks_per_int, lost_ints; if (unlikely(!(PIE_on | AIE_on | UIE_on))) { cfg = hpet_readl(HPET_T1_CFG); @@ -332,10 +334,33 @@ hpet_rtc_int_freq = DEFAULT_RTC_INT_FREQ; /* It is more accurate to use the comparator value than current count.*/ - cnt = hpet_t1_cmp; - cnt += hpet_tick*HZ/hpet_rtc_int_freq; - hpet_writel(cnt, HPET_T1_CMP); - hpet_t1_cmp = cnt; + ticks_per_int = hpet_tick * HZ / hpet_rtc_int_freq; + hpet_t1_cmp += ticks_per_int; + hpet_writel(hpet_t1_cmp, HPET_T1_CMP); + + /* + * If the interrupt handler was delayed too long, the write above tries + * to schedule the next interrupt in the past and the hardware would + * not interrupt until the counter had wrapped around. + * So we have to check that the comparator wasn't set to a past time. + */ + cnt = hpet_readl(HPET_COUNTER); + if (unlikely((int)(cnt - hpet_t1_cmp) > 0)) { + lost_ints = (cnt - hpet_t1_cmp) / ticks_per_int + 1; + /* Make sure that, even with the time needed to execute + * this code, the next scheduled interrupt has been moved + * back to the future: */ + lost_ints++; + + hpet_t1_cmp += lost_ints * ticks_per_int; + hpet_writel(hpet_t1_cmp, HPET_T1_CMP); + + if (PIE_on) + PIE_count += lost_ints; + + printk(KERN_WARNING "rtc: lost some interrupts at %ldHz.\n", + hpet_rtc_int_freq); + } } /*
diff --git a/arch/i386/kernel/topology.c b/arch/i386/kernel/topology.c index e2e281d..07d6da3 100644 --- a/arch/i386/kernel/topology.c +++ b/arch/i386/kernel/topology.c
@@ -28,6 +28,7 @@ #include <linux/init.h> #include <linux/smp.h> #include <linux/nodemask.h> +#include <linux/mmzone.h> #include <asm/cpu.h> static struct i386_cpu cpu_devices[NR_CPUS]; @@ -55,34 +56,18 @@ EXPORT_SYMBOL(arch_unregister_cpu); #endif /*CONFIG_HOTPLUG_CPU*/ - +static int __init topology_init(void) +{ + int i; #ifdef CONFIG_NUMA -#include <linux/mmzone.h> - -static int __init topology_init(void) -{ - int i; - for_each_online_node(i) register_one_node(i); - - for_each_present_cpu(i) - arch_register_cpu(i); - return 0; -} - -#else /* !CONFIG_NUMA */ - -static int __init topology_init(void) -{ - int i; - - for_each_present_cpu(i) - arch_register_cpu(i); - return 0; -} - #endif /* CONFIG_NUMA */ + for_each_present_cpu(i) + arch_register_cpu(i); + return 0; +} + subsys_initcall(topology_init);
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 7e9edaf..a13037f 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c
@@ -28,6 +28,7 @@ #include <linux/kprobes.h> #include <linux/kexec.h> #include <linux/unwind.h> +#include <linux/uaccess.h> #ifdef CONFIG_EISA #include <linux/ioport.h> @@ -40,7 +41,6 @@ #include <asm/processor.h> #include <asm/system.h> -#include <asm/uaccess.h> #include <asm/io.h> #include <asm/atomic.h> #include <asm/debugreg.h> @@ -51,6 +51,7 @@ #include <asm/smp.h> #include <asm/arch_hooks.h> #include <asm/kdebug.h> +#include <asm/stacktrace.h> #include <linux/module.h> @@ -118,26 +119,16 @@ p < (void *)tinfo + THREAD_SIZE - 3; } -/* - * Print one address/symbol entries per line. - */ -static inline void print_addr_and_symbol(unsigned long addr, char *log_lvl) -{ - printk(" [<%08lx>] ", addr); - - print_symbol("%s\n", addr); -} - static inline unsigned long print_context_stack(struct thread_info *tinfo, unsigned long *stack, unsigned long ebp, - char *log_lvl) + struct stacktrace_ops *ops, void *data) { unsigned long addr; #ifdef CONFIG_FRAME_POINTER while (valid_stack_ptr(tinfo, (void *)ebp)) { addr = *(unsigned long *)(ebp + 4); - print_addr_and_symbol(addr, log_lvl); + ops->address(data, addr); /* * break out of recursive entries (such as * end_of_stack_stop_unwind_function): @@ -150,30 +141,37 @@ while (valid_stack_ptr(tinfo, stack)) { addr = *stack++; if (__kernel_text_address(addr)) - print_addr_and_symbol(addr, log_lvl); + ops->address(data, addr); } #endif return ebp; } +struct ops_and_data { + struct stacktrace_ops *ops; + void *data; +}; + static asmlinkage int -show_trace_unwind(struct unwind_frame_info *info, void *log_lvl) +dump_trace_unwind(struct unwind_frame_info *info, void *data) { + struct ops_and_data *oad = (struct ops_and_data *)data; int n = 0; while (unwind(info) == 0 && UNW_PC(info)) { n++; - print_addr_and_symbol(UNW_PC(info), log_lvl); + oad->ops->address(oad->data, UNW_PC(info)); if (arch_unw_user_mode(info)) break; } return n; } -static void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs, - unsigned long *stack, char *log_lvl) +void dump_trace(struct task_struct *task, struct pt_regs *regs, + unsigned long *stack, + struct stacktrace_ops *ops, void *data) { - unsigned long ebp; + unsigned long ebp = 0; if (!task) task = current; @@ -181,54 +179,116 @@ if (call_trace >= 0) { int unw_ret = 0; struct unwind_frame_info info; + struct ops_and_data oad = { .ops = ops, .data = data }; if (regs) { if (unwind_init_frame_info(&info, task, regs) == 0) - unw_ret = show_trace_unwind(&info, log_lvl); + unw_ret = dump_trace_unwind(&info, &oad); } else if (task == current) - unw_ret = unwind_init_running(&info, show_trace_unwind, log_lvl); + unw_ret = unwind_init_running(&info, dump_trace_unwind, &oad); else { if (unwind_init_blocked(&info, task) == 0) - unw_ret = show_trace_unwind(&info, log_lvl); + unw_ret = dump_trace_unwind(&info, &oad); } if (unw_ret > 0) { if (call_trace == 1 && !arch_unw_user_mode(&info)) { - print_symbol("DWARF2 unwinder stuck at %s\n", + ops->warning_symbol(data, "DWARF2 unwinder stuck at %s\n", UNW_PC(&info)); if (UNW_SP(&info) >= PAGE_OFFSET) { - printk("Leftover inexact backtrace:\n"); + ops->warning(data, "Leftover inexact backtrace:\n"); stack = (void *)UNW_SP(&info); + if (!stack) + return; + ebp = UNW_FP(&info); } else - printk("Full inexact backtrace again:\n"); + ops->warning(data, "Full inexact backtrace again:\n"); } else if (call_trace >= 1) return; else - printk("Full inexact backtrace again:\n"); + ops->warning(data, "Full inexact backtrace again:\n"); } else - printk("Inexact backtrace:\n"); + ops->warning(data, "Inexact backtrace:\n"); + } + if (!stack) { + unsigned long dummy; + stack = &dummy; + if (task && task != current) + stack = (unsigned long *)task->thread.esp; } - if (task == current) { - /* Grab ebp right from our regs */ - asm ("movl %%ebp, %0" : "=r" (ebp) : ); - } else { - /* ebp is the last reg pushed by switch_to */ - ebp = *(unsigned long *) task->thread.esp; +#ifdef CONFIG_FRAME_POINTER + if (!ebp) { + if (task == current) { + /* Grab ebp right from our regs */ + asm ("movl %%ebp, %0" : "=r" (ebp) : ); + } else { + /* ebp is the last reg pushed by switch_to */ + ebp = *(unsigned long *) task->thread.esp; + } } +#endif while (1) { struct thread_info *context; context = (struct thread_info *) ((unsigned long)stack & (~(THREAD_SIZE - 1))); - ebp = print_context_stack(context, stack, ebp, log_lvl); + ebp = print_context_stack(context, stack, ebp, ops, data); + /* Should be after the line below, but somewhere + in early boot context comes out corrupted and we + can't reference it -AK */ + if (ops->stack(data, "IRQ") < 0) + break; stack = (unsigned long*)context->previous_esp; if (!stack) break; - printk("%s =======================\n", log_lvl); } } +EXPORT_SYMBOL(dump_trace); -void show_trace(struct task_struct *task, struct pt_regs *regs, unsigned long * stack) +static void +print_trace_warning_symbol(void *data, char *msg, unsigned long symbol) +{ + printk(data); + print_symbol(msg, symbol); + printk("\n"); +} + +static void print_trace_warning(void *data, char *msg) +{ + printk("%s%s\n", (char *)data, msg); +} + +static int print_trace_stack(void *data, char *name) +{ + return 0; +} + +/* + * Print one address/symbol entries per line. + */ +static void print_trace_address(void *data, unsigned long addr) +{ + printk("%s [<%08lx>] ", (char *)data, addr); + print_symbol("%s\n", addr); +} + +static struct stacktrace_ops print_trace_ops = { + .warning = print_trace_warning, + .warning_symbol = print_trace_warning_symbol, + .stack = print_trace_stack, + .address = print_trace_address, +}; + +static void +show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs, + unsigned long * stack, char *log_lvl) +{ + dump_trace(task, regs, stack, &print_trace_ops, log_lvl); + printk("%s =======================\n", log_lvl); +} + +void show_trace(struct task_struct *task, struct pt_regs *regs, + unsigned long * stack) { show_trace_log_lvl(task, regs, stack, ""); } @@ -291,8 +351,9 @@ ss = regs->xss & 0xffff; } print_modules(); - printk(KERN_EMERG "CPU: %d\nEIP: %04x:[<%08lx>] %s VLI\n" - "EFLAGS: %08lx (%s %.*s) \n", + printk(KERN_EMERG "CPU: %d\n" + KERN_EMERG "EIP: %04x:[<%08lx>] %s VLI\n" + KERN_EMERG "EFLAGS: %08lx (%s %.*s)\n", smp_processor_id(), 0xffff & regs->xcs, regs->eip, print_tainted(), regs->eflags, system_utsname.release, (int)strcspn(system_utsname.version, " "), @@ -313,6 +374,8 @@ */ if (in_kernel) { u8 __user *eip; + int code_bytes = 64; + unsigned char c; printk("\n" KERN_EMERG "Stack: "); show_stack_log_lvl(NULL, regs, (unsigned long *)esp, KERN_EMERG); @@ -320,9 +383,12 @@ printk(KERN_EMERG "Code: "); eip = (u8 __user *)regs->eip - 43; - for (i = 0; i < 64; i++, eip++) { - unsigned char c; - + if (eip < (u8 __user *)PAGE_OFFSET || __get_user(c, eip)) { + /* try starting at EIP */ + eip = (u8 __user *)regs->eip; + code_bytes = 32; + } + for (i = 0; i < code_bytes; i++, eip++) { if (eip < (u8 __user *)PAGE_OFFSET || __get_user(c, eip)) { printk(" Bad EIP value."); break; @@ -343,7 +409,7 @@ if (eip < PAGE_OFFSET) return; - if (__get_user(ud2, (unsigned short __user *)eip)) + if (probe_kernel_address((unsigned short __user *)eip, ud2)) return; if (ud2 != 0x0b0f) return; @@ -356,7 +422,8 @@ char *file; char c; - if (__get_user(line, (unsigned short __user *)(eip + 2))) + if (probe_kernel_address((unsigned short __user *)(eip + 2), + line)) break; if (__get_user(file, (char * __user *)(eip + 4)) || (unsigned long)file < PAGE_OFFSET || __get_user(c, file)) @@ -629,18 +696,24 @@ } } -static void mem_parity_error(unsigned char reason, struct pt_regs * regs) +static __kprobes void +mem_parity_error(unsigned char reason, struct pt_regs * regs) { - printk(KERN_EMERG "Uhhuh. NMI received. Dazed and confused, but trying " - "to continue\n"); + printk(KERN_EMERG "Uhhuh. NMI received for unknown reason %02x on " + "CPU %d.\n", reason, smp_processor_id()); printk(KERN_EMERG "You probably have a hardware problem with your RAM " "chips\n"); + if (panic_on_unrecovered_nmi) + panic("NMI: Not continuing"); + + printk(KERN_EMERG "Dazed and confused, but trying to continue\n"); /* Clear and disable the memory parity error line. */ clear_mem_error(reason); } -static void io_check_error(unsigned char reason, struct pt_regs * regs) +static __kprobes void +io_check_error(unsigned char reason, struct pt_regs * regs) { unsigned long i; @@ -656,7 +729,8 @@ outb(reason, 0x61); } -static void unknown_nmi_error(unsigned char reason, struct pt_regs * regs) +static __kprobes void +unknown_nmi_error(unsigned char reason, struct pt_regs * regs) { #ifdef CONFIG_MCA /* Might actually be able to figure out what the guilty party @@ -666,15 +740,18 @@ return; } #endif - printk("Uhhuh. NMI received for unknown reason %02x on CPU %d.\n", - reason, smp_processor_id()); - printk("Dazed and confused, but trying to continue\n"); - printk("Do you have a strange power saving mode enabled?\n"); + printk(KERN_EMERG "Uhhuh. NMI received for unknown reason %02x on " + "CPU %d.\n", reason, smp_processor_id()); + printk(KERN_EMERG "Do you have a strange power saving mode enabled?\n"); + if (panic_on_unrecovered_nmi) + panic("NMI: Not continuing"); + + printk(KERN_EMERG "Dazed and confused, but trying to continue\n"); } static DEFINE_SPINLOCK(nmi_print_lock); -void die_nmi (struct pt_regs *regs, const char *msg) +void __kprobes die_nmi(struct pt_regs *regs, const char *msg) { if (notify_die(DIE_NMIWATCHDOG, msg, regs, 0, 2, SIGINT) == NOTIFY_STOP) @@ -706,7 +783,7 @@ do_exit(SIGSEGV); } -static void default_do_nmi(struct pt_regs * regs) +static __kprobes void default_do_nmi(struct pt_regs * regs) { unsigned char reason = 0; @@ -723,12 +800,12 @@ * Ok, so this is none of the documented NMI sources, * so it must be the NMI watchdog. */ - if (nmi_watchdog) { - nmi_watchdog_tick(regs); + if (nmi_watchdog_tick(regs, reason)) return; - } + if (!do_nmi_callback(regs, smp_processor_id())) #endif - unknown_nmi_error(reason, regs); + unknown_nmi_error(reason, regs); + return; } if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP) @@ -744,14 +821,7 @@ reassert_nmi(); } -static int dummy_nmi_callback(struct pt_regs * regs, int cpu) -{ - return 0; -} - -static nmi_callback_t nmi_callback = dummy_nmi_callback; - -fastcall void do_nmi(struct pt_regs * regs, long error_code) +fastcall __kprobes void do_nmi(struct pt_regs * regs, long error_code) { int cpu; @@ -761,25 +831,11 @@ ++nmi_count(cpu); - if (!rcu_dereference(nmi_callback)(regs, cpu)) - default_do_nmi(regs); + default_do_nmi(regs); nmi_exit(); } -void set_nmi_callback(nmi_callback_t callback) -{ - vmalloc_sync_all(); - rcu_assign_pointer(nmi_callback, callback); -} -EXPORT_SYMBOL_GPL(set_nmi_callback); - -void unset_nmi_callback(void) -{ - nmi_callback = dummy_nmi_callback; -} -EXPORT_SYMBOL_GPL(unset_nmi_callback); - #ifdef CONFIG_KPROBES fastcall void __kprobes do_int3(struct pt_regs *regs, long error_code) { @@ -1119,20 +1175,6 @@ } #endif -#define _set_gate(gate_addr,type,dpl,addr,seg) \ -do { \ - int __d0, __d1; \ - __asm__ __volatile__ ("movw %%dx,%%ax\n\t" \ - "movw %4,%%dx\n\t" \ - "movl %%eax,%0\n\t" \ - "movl %%edx,%1" \ - :"=m" (*((long *) (gate_addr))), \ - "=m" (*(1+(long *) (gate_addr))), "=&a" (__d0), "=&d" (__d1) \ - :"i" ((short) (0x8000+(dpl<<13)+(type<<8))), \ - "3" ((char *) (addr)),"2" ((seg) << 16)); \ -} while (0) - - /* * This needs to use 'idt_table' rather than 'idt', and * thus use the _nonmapped_ version of the IDT, as the @@ -1141,7 +1183,7 @@ */ void set_intr_gate(unsigned int n, void *addr) { - _set_gate(idt_table+n,14,0,addr,__KERNEL_CS); + _set_gate(n, DESCTYPE_INT, addr, __KERNEL_CS); } /* @@ -1149,22 +1191,22 @@ */ static inline void set_system_intr_gate(unsigned int n, void *addr) { - _set_gate(idt_table+n, 14, 3, addr, __KERNEL_CS); + _set_gate(n, DESCTYPE_INT | DESCTYPE_DPL3, addr, __KERNEL_CS); } static void __init set_trap_gate(unsigned int n, void *addr) { - _set_gate(idt_table+n,15,0,addr,__KERNEL_CS); + _set_gate(n, DESCTYPE_TRAP, addr, __KERNEL_CS); } static void __init set_system_gate(unsigned int n, void *addr) { - _set_gate(idt_table+n,15,3,addr,__KERNEL_CS); + _set_gate(n, DESCTYPE_TRAP | DESCTYPE_DPL3, addr, __KERNEL_CS); } static void __init set_task_gate(unsigned int n, unsigned int gdt_entry) { - _set_gate(idt_table+n,5,0,0,(gdt_entry<<3)); + _set_gate(n, DESCTYPE_TASK, (void *)0, (gdt_entry<<3)); }
diff --git a/arch/i386/kernel/tsc.c b/arch/i386/kernel/tsc.c index 7e0d8da..b8fa0a8 100644 --- a/arch/i386/kernel/tsc.c +++ b/arch/i386/kernel/tsc.c
@@ -192,7 +192,7 @@ EXPORT_SYMBOL(recalibrate_cpu_khz); -void tsc_init(void) +void __init tsc_init(void) { if (!cpu_has_tsc || tsc_disable) return;
diff --git a/arch/i386/kernel/vmlinux.lds.S b/arch/i386/kernel/vmlinux.lds.S index 2d4f138..1e7ac1c 100644 --- a/arch/i386/kernel/vmlinux.lds.S +++ b/arch/i386/kernel/vmlinux.lds.S
@@ -13,6 +13,12 @@ OUTPUT_ARCH(i386) ENTRY(phys_startup_32) jiffies = jiffies_64; + +PHDRS { + text PT_LOAD FLAGS(5); /* R_E */ + data PT_LOAD FLAGS(7); /* RWE */ + note PT_NOTE FLAGS(4); /* R__ */ +} SECTIONS { . = __KERNEL_START; @@ -26,7 +32,7 @@ KPROBES_TEXT *(.fixup) *(.gnu.warning) - } = 0x9090 + } :text = 0x9090 _etext = .; /* End of text section */ @@ -48,7 +54,7 @@ .data : AT(ADDR(.data) - LOAD_OFFSET) { /* Data */ *(.data) CONSTRUCTORS - } + } :data . = ALIGN(4096); __nosave_begin = .; @@ -184,4 +190,6 @@ STABS_DEBUG DWARF_DEBUG + + NOTES }
diff --git a/arch/i386/lib/Makefile b/arch/i386/lib/Makefile index 914933e..d86a548 100644 --- a/arch/i386/lib/Makefile +++ b/arch/i386/lib/Makefile
@@ -4,6 +4,6 @@ lib-y = checksum.o delay.o usercopy.o getuser.o putuser.o memcpy.o strstr.o \ - bitops.o + bitops.o semaphore.o lib-$(CONFIG_X86_USE_3DNOW) += mmx.o
diff --git a/arch/i386/lib/semaphore.S b/arch/i386/lib/semaphore.S new file mode 100644 index 0000000..01f80b5 --- /dev/null +++ b/arch/i386/lib/semaphore.S
@@ -0,0 +1,217 @@ +/* + * i386 semaphore implementation. + * + * (C) Copyright 1999 Linus Torvalds + * + * Portions Copyright 1999 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * rw semaphores implemented November 1999 by Benjamin LaHaise <bcrl@kvack.org> + */ + +#include <linux/config.h> +#include <linux/linkage.h> +#include <asm/rwlock.h> +#include <asm/alternative-asm.i> +#include <asm/frame.i> +#include <asm/dwarf2.h> + +/* + * The semaphore operations have a special calling sequence that + * allow us to do a simpler in-line version of them. These routines + * need to convert that sequence back into the C sequence when + * there is contention on the semaphore. + * + * %eax contains the semaphore pointer on entry. Save the C-clobbered + * registers (%eax, %edx and %ecx) except %eax whish is either a return + * value or just clobbered.. + */ + .section .sched.text +ENTRY(__down_failed) + CFI_STARTPROC + FRAME + pushl %edx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edx,0 + pushl %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + call __down + popl %ecx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ecx + popl %edx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE edx + ENDFRAME + ret + CFI_ENDPROC + END(__down_failed) + +ENTRY(__down_failed_interruptible) + CFI_STARTPROC + FRAME + pushl %edx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edx,0 + pushl %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + call __down_interruptible + popl %ecx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ecx + popl %edx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE edx + ENDFRAME + ret + CFI_ENDPROC + END(__down_failed_interruptible) + +ENTRY(__down_failed_trylock) + CFI_STARTPROC + FRAME + pushl %edx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edx,0 + pushl %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + call __down_trylock + popl %ecx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ecx + popl %edx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE edx + ENDFRAME + ret + CFI_ENDPROC + END(__down_failed_trylock) + +ENTRY(__up_wakeup) + CFI_STARTPROC + FRAME + pushl %edx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edx,0 + pushl %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + call __up + popl %ecx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ecx + popl %edx + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE edx + ENDFRAME + ret + CFI_ENDPROC + END(__up_wakeup) + +/* + * rw spinlock fallbacks + */ +#ifdef CONFIG_SMP +ENTRY(__write_lock_failed) + CFI_STARTPROC simple + FRAME +2: LOCK_PREFIX + addl $ RW_LOCK_BIAS,(%eax) +1: rep; nop + cmpl $ RW_LOCK_BIAS,(%eax) + jne 1b + LOCK_PREFIX + subl $ RW_LOCK_BIAS,(%eax) + jnz 2b + ENDFRAME + ret + CFI_ENDPROC + END(__write_lock_failed) + +ENTRY(__read_lock_failed) + CFI_STARTPROC + FRAME +2: LOCK_PREFIX + incl (%eax) +1: rep; nop + cmpl $1,(%eax) + js 1b + LOCK_PREFIX + decl (%eax) + js 2b + ENDFRAME + ret + CFI_ENDPROC + END(__read_lock_failed) + +#endif + +/* Fix up special calling conventions */ +ENTRY(call_rwsem_down_read_failed) + CFI_STARTPROC + push %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + push %edx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edx,0 + call rwsem_down_read_failed + pop %edx + CFI_ADJUST_CFA_OFFSET -4 + pop %ecx + CFI_ADJUST_CFA_OFFSET -4 + ret + CFI_ENDPROC + END(call_rwsem_down_read_failed) + +ENTRY(call_rwsem_down_write_failed) + CFI_STARTPROC + push %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + calll rwsem_down_write_failed + pop %ecx + CFI_ADJUST_CFA_OFFSET -4 + ret + CFI_ENDPROC + END(call_rwsem_down_write_failed) + +ENTRY(call_rwsem_wake) + CFI_STARTPROC + decw %dx /* do nothing if still outstanding active readers */ + jnz 1f + push %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + call rwsem_wake + pop %ecx + CFI_ADJUST_CFA_OFFSET -4 +1: ret + CFI_ENDPROC + END(call_rwsem_wake) + +/* Fix up special calling conventions */ +ENTRY(call_rwsem_downgrade_wake) + CFI_STARTPROC + push %ecx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ecx,0 + push %edx + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET edx,0 + call rwsem_downgrade_wake + pop %edx + CFI_ADJUST_CFA_OFFSET -4 + pop %ecx + CFI_ADJUST_CFA_OFFSET -4 + ret + CFI_ENDPROC + END(call_rwsem_downgrade_wake) +
diff --git a/arch/i386/mach-generic/bigsmp.c b/arch/i386/mach-generic/bigsmp.c index ef7a6e6..33d9f93 100644 --- a/arch/i386/mach-generic/bigsmp.c +++ b/arch/i386/mach-generic/bigsmp.c
@@ -5,6 +5,7 @@ #define APIC_DEFINITION 1 #include <linux/threads.h> #include <linux/cpumask.h> +#include <asm/smp.h> #include <asm/mpspec.h> #include <asm/genapic.h> #include <asm/fixmap.h>
diff --git a/arch/i386/mach-generic/es7000.c b/arch/i386/mach-generic/es7000.c index 845cdd0..aa144d8 100644 --- a/arch/i386/mach-generic/es7000.c +++ b/arch/i386/mach-generic/es7000.c
@@ -4,6 +4,7 @@ #define APIC_DEFINITION 1 #include <linux/threads.h> #include <linux/cpumask.h> +#include <asm/smp.h> #include <asm/mpspec.h> #include <asm/genapic.h> #include <asm/fixmap.h>
diff --git a/arch/i386/mach-generic/probe.c b/arch/i386/mach-generic/probe.c index bcd1bcf..94b1fd9 100644 --- a/arch/i386/mach-generic/probe.c +++ b/arch/i386/mach-generic/probe.c
@@ -9,6 +9,7 @@ #include <linux/kernel.h> #include <linux/ctype.h> #include <linux/init.h> +#include <linux/errno.h> #include <asm/fixmap.h> #include <asm/mpspec.h> #include <asm/apicdef.h> @@ -29,7 +30,24 @@ NULL, }; -static int cmdline_apic; +static int cmdline_apic __initdata; +static int __init parse_apic(char *arg) +{ + int i; + + if (!arg) + return -EINVAL; + + for (i = 0; apic_probe[i]; i++) { + if (!strcmp(apic_probe[i]->name, arg)) { + genapic = apic_probe[i]; + cmdline_apic = 1; + return 0; + } + } + return -ENOENT; +} +early_param("apic", parse_apic); void __init generic_bigsmp_probe(void) { @@ -48,40 +66,20 @@ } } -void __init generic_apic_probe(char *command_line) +void __init generic_apic_probe(void) { - char *s; - int i; - int changed = 0; - - s = strstr(command_line, "apic="); - if (s && (s == command_line || isspace(s[-1]))) { - char *p = strchr(s, ' '), old; - if (!p) - p = strchr(s, '\0'); - old = *p; - *p = 0; - for (i = 0; !changed && apic_probe[i]; i++) { - if (!strcmp(apic_probe[i]->name, s+5)) { - changed = 1; + if (!cmdline_apic) { + int i; + for (i = 0; apic_probe[i]; i++) { + if (apic_probe[i]->probe()) { genapic = apic_probe[i]; + break; } } - if (!changed) - printk(KERN_ERR "Unknown genapic `%s' specified.\n", s); - *p = old; - cmdline_apic = changed; - } - for (i = 0; !changed && apic_probe[i]; i++) { - if (apic_probe[i]->probe()) { - changed = 1; - genapic = apic_probe[i]; - } + /* Not visible without early console */ + if (!apic_probe[i]) + panic("Didn't find an APIC driver"); } - /* Not visible without early console */ - if (!changed) - panic("Didn't find an APIC driver"); - printk(KERN_INFO "Using APIC driver %s\n", genapic->name); } @@ -119,7 +117,9 @@ return 0; } +#ifdef CONFIG_SMP int hard_smp_processor_id(void) { return genapic->get_apic_id(*(unsigned long *)(APIC_BASE+APIC_ID)); } +#endif
diff --git a/arch/i386/mach-generic/summit.c b/arch/i386/mach-generic/summit.c index b73501d..f7e5d66 100644 --- a/arch/i386/mach-generic/summit.c +++ b/arch/i386/mach-generic/summit.c
@@ -4,6 +4,7 @@ #define APIC_DEFINITION 1 #include <linux/threads.h> #include <linux/cpumask.h> +#include <asm/smp.h> #include <asm/mpspec.h> #include <asm/genapic.h> #include <asm/fixmap.h>
diff --git a/arch/i386/mach-voyager/voyager_thread.c b/arch/i386/mach-voyager/voyager_thread.c index 50f6de6..f398873 100644 --- a/arch/i386/mach-voyager/voyager_thread.c +++ b/arch/i386/mach-voyager/voyager_thread.c
@@ -130,7 +130,6 @@ init_timer(&wakeup_timer); sigfillset(¤t->blocked); - current->signal->tty = NULL; printk(KERN_NOTICE "Voyager starting monitor thread\n");
diff --git a/arch/i386/mm/boot_ioremap.c b/arch/i386/mm/boot_ioremap.c index 5d44f4f..4de11f5 100644 --- a/arch/i386/mm/boot_ioremap.c +++ b/arch/i386/mm/boot_ioremap.c
@@ -29,8 +29,11 @@ */ #define BOOT_PTE_PTRS (PTRS_PER_PTE*2) -#define boot_pte_index(address) \ - (((address) >> PAGE_SHIFT) & (BOOT_PTE_PTRS - 1)) + +static unsigned long boot_pte_index(unsigned long vaddr) +{ + return __pa(vaddr) >> PAGE_SHIFT; +} static inline boot_pte_t* boot_vaddr_to_pte(void *address) {
diff --git a/arch/i386/mm/discontig.c b/arch/i386/mm/discontig.c index 7c392dc..51e3739 100644 --- a/arch/i386/mm/discontig.c +++ b/arch/i386/mm/discontig.c
@@ -117,7 +117,8 @@ void *node_remap_end_vaddr[MAX_NUMNODES]; void *node_remap_alloc_vaddr[MAX_NUMNODES]; - +static unsigned long kva_start_pfn; +static unsigned long kva_pages; /* * FLAT - support for basic PC memory model with discontig enabled, essentially * a single node with all available processors in it with a flat @@ -156,21 +157,6 @@ BUG(); } -/* Find the owning node for a pfn. */ -int early_pfn_to_nid(unsigned long pfn) -{ - int nid; - - for_each_node(nid) { - if (node_end_pfn[nid] == 0) - break; - if (node_start_pfn[nid] <= pfn && node_end_pfn[nid] >= pfn) - return nid; - } - - return 0; -} - /* * Allocate memory for the pg_data_t for this node via a crude pre-bootmem * method. For node zero take this from the bottom of memory, for @@ -226,6 +212,8 @@ unsigned long pfn; for_each_online_node(nid) { + unsigned old_end_pfn = node_end_pfn[nid]; + /* * The acpi/srat node info can show hot-add memroy zones * where memory could be added but not currently present. @@ -275,6 +263,7 @@ node_end_pfn[nid] -= size; node_remap_start_pfn[nid] = node_end_pfn[nid]; + shrink_active_range(nid, old_end_pfn, node_end_pfn[nid]); } printk("Reserving total of %ld pages for numa KVA remap\n", reserve_pages); @@ -286,7 +275,6 @@ { int nid; unsigned long system_start_pfn, system_max_low_pfn; - unsigned long reserve_pages; /* * When mapping a NUMA machine we allocate the node_mem_map arrays @@ -298,14 +286,23 @@ find_max_pfn(); get_memcfg_numa(); - reserve_pages = calculate_numa_remap_pages(); + kva_pages = calculate_numa_remap_pages(); /* partially used pages are not usable - thus round upwards */ system_start_pfn = min_low_pfn = PFN_UP(init_pg_tables_end); - system_max_low_pfn = max_low_pfn = find_max_low_pfn() - reserve_pages; - printk("reserve_pages = %ld find_max_low_pfn() ~ %ld\n", - reserve_pages, max_low_pfn + reserve_pages); + kva_start_pfn = find_max_low_pfn() - kva_pages; + +#ifdef CONFIG_BLK_DEV_INITRD + /* Numa kva area is below the initrd */ + if (LOADER_TYPE && INITRD_START) + kva_start_pfn = PFN_DOWN(INITRD_START) - kva_pages; +#endif + kva_start_pfn -= kva_start_pfn & (PTRS_PER_PTE-1); + + system_max_low_pfn = max_low_pfn = find_max_low_pfn(); + printk("kva_start_pfn ~ %ld find_max_low_pfn() ~ %ld\n", + kva_start_pfn, max_low_pfn); printk("max_pfn = %ld\n", max_pfn); #ifdef CONFIG_HIGHMEM highstart_pfn = highend_pfn = max_pfn; @@ -313,6 +310,11 @@ highstart_pfn = system_max_low_pfn; printk(KERN_NOTICE "%ldMB HIGHMEM available.\n", pages_to_mb(highend_pfn - highstart_pfn)); + num_physpages = highend_pfn; + high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1; +#else + num_physpages = system_max_low_pfn; + high_memory = (void *) __va(system_max_low_pfn * PAGE_SIZE - 1) + 1; #endif printk(KERN_NOTICE "%ldMB LOWMEM available.\n", pages_to_mb(system_max_low_pfn)); @@ -323,7 +325,7 @@ (ulong) pfn_to_kaddr(max_low_pfn)); for_each_online_node(nid) { node_remap_start_vaddr[nid] = pfn_to_kaddr( - highstart_pfn + node_remap_offset[nid]); + kva_start_pfn + node_remap_offset[nid]); /* Init the node remap allocator */ node_remap_end_vaddr[nid] = node_remap_start_vaddr[nid] + (node_remap_size[nid] * PAGE_SIZE); @@ -338,7 +340,6 @@ } printk("High memory starts at vaddr %08lx\n", (ulong) pfn_to_kaddr(highstart_pfn)); - vmalloc_earlyreserve = reserve_pages * PAGE_SIZE; for_each_online_node(nid) find_max_pfn_node(nid); @@ -348,48 +349,30 @@ return max_low_pfn; } +void __init numa_kva_reserve(void) +{ + reserve_bootmem(PFN_PHYS(kva_start_pfn),PFN_PHYS(kva_pages)); +} + void __init zone_sizes_init(void) { int nid; + unsigned long max_zone_pfns[MAX_NR_ZONES] = { + virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT, + max_low_pfn, + highend_pfn + }; - - for_each_online_node(nid) { - unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0}; - unsigned long *zholes_size; - unsigned int max_dma; - - unsigned long low = max_low_pfn; - unsigned long start = node_start_pfn[nid]; - unsigned long high = node_end_pfn[nid]; - - max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; - - if (node_has_online_mem(nid)){ - if (start > low) { -#ifdef CONFIG_HIGHMEM - BUG_ON(start > high); - zones_size[ZONE_HIGHMEM] = high - start; -#endif - } else { - if (low < max_dma) - zones_size[ZONE_DMA] = low; - else { - BUG_ON(max_dma > low); - BUG_ON(low > high); - zones_size[ZONE_DMA] = max_dma; - zones_size[ZONE_NORMAL] = low - max_dma; -#ifdef CONFIG_HIGHMEM - zones_size[ZONE_HIGHMEM] = high - low; -#endif - } - } + /* If SRAT has not registered memory, register it now */ + if (find_max_pfn_with_active_regions() == 0) { + for_each_online_node(nid) { + if (node_has_online_mem(nid)) + add_active_range(nid, node_start_pfn[nid], + node_end_pfn[nid]); } - - zholes_size = get_zholes_size(nid); - - free_area_init_node(nid, NODE_DATA(nid), zones_size, start, - zholes_size); } + + free_area_init_nodes(max_zone_pfns); return; } @@ -409,7 +392,7 @@ zone_end_pfn = zone_start_pfn + zone->spanned_pages; printk("Initializing %s for node %d (%08lx:%08lx)\n", - zone->name, zone->zone_pgdat->node_id, + zone->name, zone_to_nid(zone), zone_start_pfn, zone_end_pfn); for (node_pfn = zone_start_pfn; node_pfn < zone_end_pfn; node_pfn++) {
diff --git a/arch/i386/mm/extable.c b/arch/i386/mm/extable.c index de03c54..0ce4f22 100644 --- a/arch/i386/mm/extable.c +++ b/arch/i386/mm/extable.c
@@ -11,7 +11,7 @@ const struct exception_table_entry *fixup; #ifdef CONFIG_PNPBIOS - if (unlikely((regs->xcs & ~15) == (GDT_ENTRY_PNPBIOS_BASE << 3))) + if (unlikely(SEGMENT_IS_PNP_CODE(regs->xcs))) { extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp; extern u32 pnp_bios_is_utter_crap;
diff --git a/arch/i386/mm/fault.c b/arch/i386/mm/fault.c index f727946..5e17a3f 100644 --- a/arch/i386/mm/fault.c +++ b/arch/i386/mm/fault.c
@@ -27,21 +27,24 @@ #include <asm/uaccess.h> #include <asm/desc.h> #include <asm/kdebug.h> +#include <asm/segment.h> extern void die(const char *,struct pt_regs *,long); -#ifdef CONFIG_KPROBES -ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); +static ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); + int register_page_fault_notifier(struct notifier_block *nb) { vmalloc_sync_all(); return atomic_notifier_chain_register(¬ify_page_fault_chain, nb); } +EXPORT_SYMBOL_GPL(register_page_fault_notifier); int unregister_page_fault_notifier(struct notifier_block *nb) { return atomic_notifier_chain_unregister(¬ify_page_fault_chain, nb); } +EXPORT_SYMBOL_GPL(unregister_page_fault_notifier); static inline int notify_page_fault(enum die_val val, const char *str, struct pt_regs *regs, long err, int trap, int sig) @@ -55,14 +58,6 @@ }; return atomic_notifier_call_chain(¬ify_page_fault_chain, val, &args); } -#else -static inline int notify_page_fault(enum die_val val, const char *str, - struct pt_regs *regs, long err, int trap, int sig) -{ - return NOTIFY_DONE; -} -#endif - /* * Unlock any spinlocks which will prevent us from getting the @@ -119,10 +114,10 @@ } /* The standard kernel/user address space limit. */ - *eip_limit = (seg & 3) ? USER_DS.seg : KERNEL_DS.seg; + *eip_limit = user_mode(regs) ? USER_DS.seg : KERNEL_DS.seg; /* By far the most common cases. */ - if (likely(seg == __USER_CS || seg == __KERNEL_CS)) + if (likely(SEGMENT_IS_FLAT_CODE(seg))) return eip; /* Check the segment exists, is within the current LDT/GDT size, @@ -436,11 +431,7 @@ write = 0; switch (error_code & 3) { default: /* 3: write, present */ -#ifdef TEST_VERIFY_AREA - if (regs->cs == KERNEL_CS) - printk("WP fault at %08lx\n", regs->eip); -#endif - /* fall through */ + /* fall through */ case 2: /* write, not present */ if (!(vma->vm_flags & VM_WRITE)) goto bad_area;
diff --git a/arch/i386/mm/highmem.c b/arch/i386/mm/highmem.c index b6eb4dc..ba44000 100644 --- a/arch/i386/mm/highmem.c +++ b/arch/i386/mm/highmem.c
@@ -54,7 +54,7 @@ unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK; enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id(); - if (vaddr < FIXADDR_START) { // FIXME + if (vaddr >= PAGE_OFFSET && vaddr < (unsigned long)high_memory) { dec_preempt_count(); preempt_check_resched(); return;
diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c index 89e8486..4a5a914 100644 --- a/arch/i386/mm/init.c +++ b/arch/i386/mm/init.c
@@ -435,16 +435,22 @@ * on Enable * off Disable */ -void __init noexec_setup(const char *str) +static int __init noexec_setup(char *str) { - if (!strncmp(str, "on",2) && cpu_has_nx) { - __supported_pte_mask |= _PAGE_NX; - disable_nx = 0; - } else if (!strncmp(str,"off",3)) { + if (!str || !strcmp(str, "on")) { + if (cpu_has_nx) { + __supported_pte_mask |= _PAGE_NX; + disable_nx = 0; + } + } else if (!strcmp(str,"off")) { disable_nx = 1; __supported_pte_mask &= ~_PAGE_NX; - } + } else + return -EINVAL; + + return 0; } +early_param("noexec", noexec_setup); int nx_enabled = 0; #ifdef CONFIG_X86_PAE @@ -552,18 +558,6 @@ } } -static void __init set_max_mapnr_init(void) -{ -#ifdef CONFIG_HIGHMEM - num_physpages = highend_pfn; -#else - num_physpages = max_low_pfn; -#endif -#ifdef CONFIG_FLATMEM - max_mapnr = num_physpages; -#endif -} - static struct kcore_list kcore_mem, kcore_vmalloc; void __init mem_init(void) @@ -590,14 +584,6 @@ } #endif - set_max_mapnr_init(); - -#ifdef CONFIG_HIGHMEM - high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1; -#else - high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1; -#endif - /* this will put all low memory onto the freelists */ totalram_pages += free_all_bootmem(); @@ -629,6 +615,48 @@ (unsigned long) (totalhigh_pages << (PAGE_SHIFT-10)) ); +#if 1 /* double-sanity-check paranoia */ + printk("virtual kernel memory layout:\n" + " fixmap : 0x%08lx - 0x%08lx (%4ld kB)\n" +#ifdef CONFIG_HIGHMEM + " pkmap : 0x%08lx - 0x%08lx (%4ld kB)\n" +#endif + " vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n" + " lowmem : 0x%08lx - 0x%08lx (%4ld MB)\n" + " .init : 0x%08lx - 0x%08lx (%4ld kB)\n" + " .data : 0x%08lx - 0x%08lx (%4ld kB)\n" + " .text : 0x%08lx - 0x%08lx (%4ld kB)\n", + FIXADDR_START, FIXADDR_TOP, + (FIXADDR_TOP - FIXADDR_START) >> 10, + +#ifdef CONFIG_HIGHMEM + PKMAP_BASE, PKMAP_BASE+LAST_PKMAP*PAGE_SIZE, + (LAST_PKMAP*PAGE_SIZE) >> 10, +#endif + + VMALLOC_START, VMALLOC_END, + (VMALLOC_END - VMALLOC_START) >> 20, + + (unsigned long)__va(0), (unsigned long)high_memory, + ((unsigned long)high_memory - (unsigned long)__va(0)) >> 20, + + (unsigned long)&__init_begin, (unsigned long)&__init_end, + ((unsigned long)&__init_end - (unsigned long)&__init_begin) >> 10, + + (unsigned long)&_etext, (unsigned long)&_edata, + ((unsigned long)&_edata - (unsigned long)&_etext) >> 10, + + (unsigned long)&_text, (unsigned long)&_etext, + ((unsigned long)&_etext - (unsigned long)&_text) >> 10); + +#ifdef CONFIG_HIGHMEM + BUG_ON(PKMAP_BASE+LAST_PKMAP*PAGE_SIZE > FIXADDR_START); + BUG_ON(VMALLOC_END > PKMAP_BASE); +#endif + BUG_ON(VMALLOC_START > VMALLOC_END); + BUG_ON((unsigned long)high_memory > VMALLOC_START); +#endif /* double-sanity-check paranoia */ + #ifdef CONFIG_X86_PAE if (!cpu_has_pae) panic("cannot execute a PAE-enabled kernel on a PAE-less CPU!"); @@ -657,7 +685,7 @@ int arch_add_memory(int nid, u64 start, u64 size) { struct pglist_data *pgdata = &contig_page_data; - struct zone *zone = pgdata->node_zones + MAX_NR_ZONES-1; + struct zone *zone = pgdata->node_zones + ZONE_HIGHMEM; unsigned long start_pfn = start >> PAGE_SHIFT; unsigned long nr_pages = size >> PAGE_SHIFT;
diff --git a/arch/i386/mm/pgtable.c b/arch/i386/mm/pgtable.c index bd98768..10126e3 100644 --- a/arch/i386/mm/pgtable.c +++ b/arch/i386/mm/pgtable.c
@@ -12,6 +12,7 @@ #include <linux/slab.h> #include <linux/pagemap.h> #include <linux/spinlock.h> +#include <linux/module.h> #include <asm/system.h> #include <asm/pgtable.h> @@ -60,7 +61,9 @@ printk(KERN_INFO "%lu pages writeback\n", global_page_state(NR_WRITEBACK)); printk(KERN_INFO "%lu pages mapped\n", global_page_state(NR_FILE_MAPPED)); - printk(KERN_INFO "%lu pages slab\n", global_page_state(NR_SLAB)); + printk(KERN_INFO "%lu pages slab\n", + global_page_state(NR_SLAB_RECLAIMABLE) + + global_page_state(NR_SLAB_UNRECLAIMABLE)); printk(KERN_INFO "%lu pages pagetables\n", global_page_state(NR_PAGETABLE)); } @@ -137,6 +140,12 @@ __flush_tlb_one(vaddr); } +static int fixmaps; +#ifndef CONFIG_COMPAT_VDSO +unsigned long __FIXADDR_TOP = 0xfffff000; +EXPORT_SYMBOL(__FIXADDR_TOP); +#endif + void __set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t flags) { unsigned long address = __fix_to_virt(idx); @@ -146,6 +155,25 @@ return; } set_pte_pfn(address, phys >> PAGE_SHIFT, flags); + fixmaps++; +} + +/** + * reserve_top_address - reserves a hole in the top of kernel address space + * @reserve - size of hole to reserve + * + * Can be used to relocate the fixmap area and poke a hole in the top + * of kernel address space to make room for a hypervisor. + */ +void reserve_top_address(unsigned long reserve) +{ + BUG_ON(fixmaps > 0); +#ifdef CONFIG_COMPAT_VDSO + BUG_ON(reserve != 0); +#else + __FIXADDR_TOP = -reserve - PAGE_SIZE; + __VMALLOC_RESERVE += reserve; +#endif } pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
diff --git a/arch/i386/oprofile/nmi_int.c b/arch/i386/oprofile/nmi_int.c index 5f8dc8a..3700eef 100644 --- a/arch/i386/oprofile/nmi_int.c +++ b/arch/i386/oprofile/nmi_int.c
@@ -17,14 +17,15 @@ #include <asm/nmi.h> #include <asm/msr.h> #include <asm/apic.h> +#include <asm/kdebug.h> #include "op_counter.h" #include "op_x86_model.h" - + static struct op_x86_model_spec const * model; static struct op_msrs cpu_msrs[NR_CPUS]; static unsigned long saved_lvtpc[NR_CPUS]; - + static int nmi_start(void); static void nmi_stop(void); @@ -82,13 +83,24 @@ #define exit_driverfs() do { } while (0) #endif /* CONFIG_PM */ - -static int nmi_callback(struct pt_regs * regs, int cpu) +static int profile_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data) { - return model->check_ctrs(regs, &cpu_msrs[cpu]); + struct die_args *args = (struct die_args *)data; + int ret = NOTIFY_DONE; + int cpu = smp_processor_id(); + + switch(val) { + case DIE_NMI: + if (model->check_ctrs(args->regs, &cpu_msrs[cpu])) + ret = NOTIFY_STOP; + break; + default: + break; + } + return ret; } - - + static void nmi_cpu_save_registers(struct op_msrs * msrs) { unsigned int const nr_ctrs = model->num_counters; @@ -98,15 +110,19 @@ unsigned int i; for (i = 0; i < nr_ctrs; ++i) { - rdmsr(counters[i].addr, - counters[i].saved.low, - counters[i].saved.high); + if (counters[i].addr){ + rdmsr(counters[i].addr, + counters[i].saved.low, + counters[i].saved.high); + } } for (i = 0; i < nr_ctrls; ++i) { - rdmsr(controls[i].addr, - controls[i].saved.low, - controls[i].saved.high); + if (controls[i].addr){ + rdmsr(controls[i].addr, + controls[i].saved.low, + controls[i].saved.high); + } } } @@ -170,27 +186,29 @@ apic_write(APIC_LVTPC, APIC_DM_NMI); } +static struct notifier_block profile_exceptions_nb = { + .notifier_call = profile_exceptions_notify, + .next = NULL, + .priority = 0 +}; static int nmi_setup(void) { + int err=0; + if (!allocate_msrs()) return -ENOMEM; - /* We walk a thin line between law and rape here. - * We need to be careful to install our NMI handler - * without actually triggering any NMIs as this will - * break the core code horrifically. - */ - if (reserve_lapic_nmi() < 0) { + if ((err = register_die_notifier(&profile_exceptions_nb))){ free_msrs(); - return -EBUSY; + return err; } + /* We need to serialize save and setup for HT because the subset * of msrs are distinct for save and setup operations */ on_each_cpu(nmi_save_registers, NULL, 0, 1); on_each_cpu(nmi_cpu_setup, NULL, 0, 1); - set_nmi_callback(nmi_callback); nmi_enabled = 1; return 0; } @@ -205,15 +223,19 @@ unsigned int i; for (i = 0; i < nr_ctrls; ++i) { - wrmsr(controls[i].addr, - controls[i].saved.low, - controls[i].saved.high); + if (controls[i].addr){ + wrmsr(controls[i].addr, + controls[i].saved.low, + controls[i].saved.high); + } } for (i = 0; i < nr_ctrs; ++i) { - wrmsr(counters[i].addr, - counters[i].saved.low, - counters[i].saved.high); + if (counters[i].addr){ + wrmsr(counters[i].addr, + counters[i].saved.low, + counters[i].saved.high); + } } } @@ -234,6 +256,7 @@ apic_write(APIC_LVTPC, saved_lvtpc[cpu]); apic_write(APIC_LVTERR, v); nmi_restore_registers(msrs); + model->shutdown(msrs); } @@ -241,8 +264,7 @@ { nmi_enabled = 0; on_each_cpu(nmi_cpu_shutdown, NULL, 0, 1); - unset_nmi_callback(); - release_lapic_nmi(); + unregister_die_notifier(&profile_exceptions_nb); free_msrs(); } @@ -284,6 +306,14 @@ struct dentry * dir; char buf[4]; + /* quick little hack to _not_ expose a counter if it is not + * available for use. This should protect userspace app. + * NOTE: assumes 1:1 mapping here (that counters are organized + * sequentially in their struct assignment). + */ + if (unlikely(!avail_to_resrv_perfctr_nmi_bit(i))) + continue; + snprintf(buf, sizeof(buf), "%d", i); dir = oprofilefs_mkdir(sb, root, buf); oprofilefs_create_ulong(sb, dir, "enabled", &counter_config[i].enabled);
diff --git a/arch/i386/oprofile/nmi_timer_int.c b/arch/i386/oprofile/nmi_timer_int.c index 930a112..abf0ba5 100644 --- a/arch/i386/oprofile/nmi_timer_int.c +++ b/arch/i386/oprofile/nmi_timer_int.c
@@ -17,34 +17,49 @@ #include <asm/nmi.h> #include <asm/apic.h> #include <asm/ptrace.h> +#include <asm/kdebug.h> -static int nmi_timer_callback(struct pt_regs * regs, int cpu) +static int profile_timer_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data) { - oprofile_add_sample(regs, 0); - return 1; + struct die_args *args = (struct die_args *)data; + int ret = NOTIFY_DONE; + + switch(val) { + case DIE_NMI: + oprofile_add_sample(args->regs, 0); + ret = NOTIFY_STOP; + break; + default: + break; + } + return ret; } +static struct notifier_block profile_timer_exceptions_nb = { + .notifier_call = profile_timer_exceptions_notify, + .next = NULL, + .priority = 0 +}; + static int timer_start(void) { - disable_timer_nmi_watchdog(); - set_nmi_callback(nmi_timer_callback); + if (register_die_notifier(&profile_timer_exceptions_nb)) + return 1; return 0; } static void timer_stop(void) { - enable_timer_nmi_watchdog(); - unset_nmi_callback(); + unregister_die_notifier(&profile_timer_exceptions_nb); synchronize_sched(); /* Allow already-started NMIs to complete. */ } int __init op_nmi_timer_init(struct oprofile_operations * ops) { - extern int nmi_active; - - if (nmi_active <= 0) + if ((nmi_watchdog != NMI_IO_APIC) || (atomic_read(&nmi_active) <= 0)) return -ENODEV; ops->start = timer_start;
diff --git a/arch/i386/oprofile/op_model_athlon.c b/arch/i386/oprofile/op_model_athlon.c index 693bdea..3057a19 100644 --- a/arch/i386/oprofile/op_model_athlon.c +++ b/arch/i386/oprofile/op_model_athlon.c
@@ -21,10 +21,12 @@ #define NUM_COUNTERS 4 #define NUM_CONTROLS 4 +#define CTR_IS_RESERVED(msrs,c) (msrs->counters[(c)].addr ? 1 : 0) #define CTR_READ(l,h,msrs,c) do {rdmsr(msrs->counters[(c)].addr, (l), (h));} while (0) #define CTR_WRITE(l,msrs,c) do {wrmsr(msrs->counters[(c)].addr, -(unsigned int)(l), -1);} while (0) #define CTR_OVERFLOWED(n) (!((n) & (1U<<31))) +#define CTRL_IS_RESERVED(msrs,c) (msrs->controls[(c)].addr ? 1 : 0) #define CTRL_READ(l,h,msrs,c) do {rdmsr(msrs->controls[(c)].addr, (l), (h));} while (0) #define CTRL_WRITE(l,h,msrs,c) do {wrmsr(msrs->controls[(c)].addr, (l), (h));} while (0) #define CTRL_SET_ACTIVE(n) (n |= (1<<22)) @@ -40,15 +42,21 @@ static void athlon_fill_in_addresses(struct op_msrs * const msrs) { - msrs->counters[0].addr = MSR_K7_PERFCTR0; - msrs->counters[1].addr = MSR_K7_PERFCTR1; - msrs->counters[2].addr = MSR_K7_PERFCTR2; - msrs->counters[3].addr = MSR_K7_PERFCTR3; + int i; - msrs->controls[0].addr = MSR_K7_EVNTSEL0; - msrs->controls[1].addr = MSR_K7_EVNTSEL1; - msrs->controls[2].addr = MSR_K7_EVNTSEL2; - msrs->controls[3].addr = MSR_K7_EVNTSEL3; + for (i=0; i < NUM_COUNTERS; i++) { + if (reserve_perfctr_nmi(MSR_K7_PERFCTR0 + i)) + msrs->counters[i].addr = MSR_K7_PERFCTR0 + i; + else + msrs->counters[i].addr = 0; + } + + for (i=0; i < NUM_CONTROLS; i++) { + if (reserve_evntsel_nmi(MSR_K7_EVNTSEL0 + i)) + msrs->controls[i].addr = MSR_K7_EVNTSEL0 + i; + else + msrs->controls[i].addr = 0; + } } @@ -59,19 +67,23 @@ /* clear all counters */ for (i = 0 ; i < NUM_CONTROLS; ++i) { + if (unlikely(!CTRL_IS_RESERVED(msrs,i))) + continue; CTRL_READ(low, high, msrs, i); CTRL_CLEAR(low); CTRL_WRITE(low, high, msrs, i); } - + /* avoid a false detection of ctr overflows in NMI handler */ for (i = 0; i < NUM_COUNTERS; ++i) { + if (unlikely(!CTR_IS_RESERVED(msrs,i))) + continue; CTR_WRITE(1, msrs, i); } /* enable active counters */ for (i = 0; i < NUM_COUNTERS; ++i) { - if (counter_config[i].enabled) { + if ((counter_config[i].enabled) && (CTR_IS_RESERVED(msrs,i))) { reset_value[i] = counter_config[i].count; CTR_WRITE(counter_config[i].count, msrs, i); @@ -98,6 +110,8 @@ int i; for (i = 0 ; i < NUM_COUNTERS; ++i) { + if (!reset_value[i]) + continue; CTR_READ(low, high, msrs, i); if (CTR_OVERFLOWED(low)) { oprofile_add_sample(regs, i); @@ -132,12 +146,27 @@ /* Subtle: stop on all counters to avoid race with * setting our pm callback */ for (i = 0 ; i < NUM_COUNTERS ; ++i) { + if (!reset_value[i]) + continue; CTRL_READ(low, high, msrs, i); CTRL_SET_INACTIVE(low); CTRL_WRITE(low, high, msrs, i); } } +static void athlon_shutdown(struct op_msrs const * const msrs) +{ + int i; + + for (i = 0 ; i < NUM_COUNTERS ; ++i) { + if (CTR_IS_RESERVED(msrs,i)) + release_perfctr_nmi(MSR_K7_PERFCTR0 + i); + } + for (i = 0 ; i < NUM_CONTROLS ; ++i) { + if (CTRL_IS_RESERVED(msrs,i)) + release_evntsel_nmi(MSR_K7_EVNTSEL0 + i); + } +} struct op_x86_model_spec const op_athlon_spec = { .num_counters = NUM_COUNTERS, @@ -146,5 +175,6 @@ .setup_ctrs = &athlon_setup_ctrs, .check_ctrs = &athlon_check_ctrs, .start = &athlon_start, - .stop = &athlon_stop + .stop = &athlon_stop, + .shutdown = &athlon_shutdown };
diff --git a/arch/i386/oprofile/op_model_p4.c b/arch/i386/oprofile/op_model_p4.c index 7c61d35..4792592 100644 --- a/arch/i386/oprofile/op_model_p4.c +++ b/arch/i386/oprofile/op_model_p4.c
@@ -32,7 +32,7 @@ #define NUM_CONTROLS_HT2 (NUM_ESCRS_HT2 + NUM_CCCRS_HT2) static unsigned int num_counters = NUM_COUNTERS_NON_HT; - +static unsigned int num_controls = NUM_CONTROLS_NON_HT; /* this has to be checked dynamically since the hyper-threadedness of a chip is discovered at @@ -40,8 +40,10 @@ static inline void setup_num_counters(void) { #ifdef CONFIG_SMP - if (smp_num_siblings == 2) + if (smp_num_siblings == 2){ num_counters = NUM_COUNTERS_HT2; + num_controls = NUM_CONTROLS_HT2; + } #endif } @@ -97,15 +99,6 @@ #define NUM_UNUSED_CCCRS NUM_CCCRS_NON_HT - NUM_COUNTERS_NON_HT -/* All cccr we don't use. */ -static int p4_unused_cccr[NUM_UNUSED_CCCRS] = { - MSR_P4_BPU_CCCR1, MSR_P4_BPU_CCCR3, - MSR_P4_MS_CCCR1, MSR_P4_MS_CCCR3, - MSR_P4_FLAME_CCCR1, MSR_P4_FLAME_CCCR3, - MSR_P4_IQ_CCCR0, MSR_P4_IQ_CCCR1, - MSR_P4_IQ_CCCR2, MSR_P4_IQ_CCCR3 -}; - /* p4 event codes in libop/op_event.h are indices into this table. */ static struct p4_event_binding p4_events[NUM_EVENTS] = { @@ -372,6 +365,8 @@ #define CCCR_OVF_P(cccr) ((cccr) & (1U<<31)) #define CCCR_CLEAR_OVF(cccr) ((cccr) &= (~(1U<<31))) +#define CTRL_IS_RESERVED(msrs,c) (msrs->controls[(c)].addr ? 1 : 0) +#define CTR_IS_RESERVED(msrs,c) (msrs->counters[(c)].addr ? 1 : 0) #define CTR_READ(l,h,i) do {rdmsr(p4_counters[(i)].counter_address, (l), (h));} while (0) #define CTR_WRITE(l,i) do {wrmsr(p4_counters[(i)].counter_address, -(u32)(l), -1);} while (0) #define CTR_OVERFLOW_P(ctr) (!((ctr) & 0x80000000)) @@ -401,29 +396,34 @@ static void p4_fill_in_addresses(struct op_msrs * const msrs) { unsigned int i; - unsigned int addr, stag; + unsigned int addr, cccraddr, stag; setup_num_counters(); stag = get_stagger(); - /* the counter registers we pay attention to */ + /* initialize some registers */ for (i = 0; i < num_counters; ++i) { - msrs->counters[i].addr = - p4_counters[VIRT_CTR(stag, i)].counter_address; + msrs->counters[i].addr = 0; } - - /* FIXME: bad feeling, we don't save the 10 counters we don't use. */ - - /* 18 CCCR registers */ - for (i = 0, addr = MSR_P4_BPU_CCCR0 + stag; - addr <= MSR_P4_IQ_CCCR5; ++i, addr += addr_increment()) { - msrs->controls[i].addr = addr; + for (i = 0; i < num_controls; ++i) { + msrs->controls[i].addr = 0; } + /* the counter & cccr registers we pay attention to */ + for (i = 0; i < num_counters; ++i) { + addr = p4_counters[VIRT_CTR(stag, i)].counter_address; + cccraddr = p4_counters[VIRT_CTR(stag, i)].cccr_address; + if (reserve_perfctr_nmi(addr)){ + msrs->counters[i].addr = addr; + msrs->controls[i].addr = cccraddr; + } + } + /* 43 ESCR registers in three or four discontiguous group */ for (addr = MSR_P4_BSU_ESCR0 + stag; addr < MSR_P4_IQ_ESCR0; ++i, addr += addr_increment()) { - msrs->controls[i].addr = addr; + if (reserve_evntsel_nmi(addr)) + msrs->controls[i].addr = addr; } /* no IQ_ESCR0/1 on some models, we save a seconde time BSU_ESCR0/1 @@ -431,47 +431,57 @@ if (boot_cpu_data.x86_model >= 0x3) { for (addr = MSR_P4_BSU_ESCR0 + stag; addr <= MSR_P4_BSU_ESCR1; ++i, addr += addr_increment()) { - msrs->controls[i].addr = addr; + if (reserve_evntsel_nmi(addr)) + msrs->controls[i].addr = addr; } } else { for (addr = MSR_P4_IQ_ESCR0 + stag; addr <= MSR_P4_IQ_ESCR1; ++i, addr += addr_increment()) { - msrs->controls[i].addr = addr; + if (reserve_evntsel_nmi(addr)) + msrs->controls[i].addr = addr; } } for (addr = MSR_P4_RAT_ESCR0 + stag; addr <= MSR_P4_SSU_ESCR0; ++i, addr += addr_increment()) { - msrs->controls[i].addr = addr; + if (reserve_evntsel_nmi(addr)) + msrs->controls[i].addr = addr; } for (addr = MSR_P4_MS_ESCR0 + stag; addr <= MSR_P4_TC_ESCR1; ++i, addr += addr_increment()) { - msrs->controls[i].addr = addr; + if (reserve_evntsel_nmi(addr)) + msrs->controls[i].addr = addr; } for (addr = MSR_P4_IX_ESCR0 + stag; addr <= MSR_P4_CRU_ESCR3; ++i, addr += addr_increment()) { - msrs->controls[i].addr = addr; + if (reserve_evntsel_nmi(addr)) + msrs->controls[i].addr = addr; } /* there are 2 remaining non-contiguously located ESCRs */ if (num_counters == NUM_COUNTERS_NON_HT) { /* standard non-HT CPUs handle both remaining ESCRs*/ - msrs->controls[i++].addr = MSR_P4_CRU_ESCR5; - msrs->controls[i++].addr = MSR_P4_CRU_ESCR4; + if (reserve_evntsel_nmi(MSR_P4_CRU_ESCR5)) + msrs->controls[i++].addr = MSR_P4_CRU_ESCR5; + if (reserve_evntsel_nmi(MSR_P4_CRU_ESCR4)) + msrs->controls[i++].addr = MSR_P4_CRU_ESCR4; } else if (stag == 0) { /* HT CPUs give the first remainder to the even thread, as the 32nd control register */ - msrs->controls[i++].addr = MSR_P4_CRU_ESCR4; + if (reserve_evntsel_nmi(MSR_P4_CRU_ESCR4)) + msrs->controls[i++].addr = MSR_P4_CRU_ESCR4; } else { /* and two copies of the second to the odd thread, for the 22st and 23nd control registers */ - msrs->controls[i++].addr = MSR_P4_CRU_ESCR5; - msrs->controls[i++].addr = MSR_P4_CRU_ESCR5; + if (reserve_evntsel_nmi(MSR_P4_CRU_ESCR5)) { + msrs->controls[i++].addr = MSR_P4_CRU_ESCR5; + msrs->controls[i++].addr = MSR_P4_CRU_ESCR5; + } } } @@ -544,7 +554,6 @@ { unsigned int i; unsigned int low, high; - unsigned int addr; unsigned int stag; stag = get_stagger(); @@ -557,59 +566,24 @@ /* clear the cccrs we will use */ for (i = 0 ; i < num_counters ; i++) { + if (unlikely(!CTRL_IS_RESERVED(msrs,i))) + continue; rdmsr(p4_counters[VIRT_CTR(stag, i)].cccr_address, low, high); CCCR_CLEAR(low); CCCR_SET_REQUIRED_BITS(low); wrmsr(p4_counters[VIRT_CTR(stag, i)].cccr_address, low, high); } - /* clear cccrs outside our concern */ - for (i = stag ; i < NUM_UNUSED_CCCRS ; i += addr_increment()) { - rdmsr(p4_unused_cccr[i], low, high); - CCCR_CLEAR(low); - CCCR_SET_REQUIRED_BITS(low); - wrmsr(p4_unused_cccr[i], low, high); - } - /* clear all escrs (including those outside our concern) */ - for (addr = MSR_P4_BSU_ESCR0 + stag; - addr < MSR_P4_IQ_ESCR0; addr += addr_increment()) { - wrmsr(addr, 0, 0); + for (i = num_counters; i < num_controls; i++) { + if (unlikely(!CTRL_IS_RESERVED(msrs,i))) + continue; + wrmsr(msrs->controls[i].addr, 0, 0); } - /* On older models clear also MSR_P4_IQ_ESCR0/1 */ - if (boot_cpu_data.x86_model < 0x3) { - wrmsr(MSR_P4_IQ_ESCR0, 0, 0); - wrmsr(MSR_P4_IQ_ESCR1, 0, 0); - } - - for (addr = MSR_P4_RAT_ESCR0 + stag; - addr <= MSR_P4_SSU_ESCR0; ++i, addr += addr_increment()) { - wrmsr(addr, 0, 0); - } - - for (addr = MSR_P4_MS_ESCR0 + stag; - addr <= MSR_P4_TC_ESCR1; addr += addr_increment()){ - wrmsr(addr, 0, 0); - } - - for (addr = MSR_P4_IX_ESCR0 + stag; - addr <= MSR_P4_CRU_ESCR3; addr += addr_increment()){ - wrmsr(addr, 0, 0); - } - - if (num_counters == NUM_COUNTERS_NON_HT) { - wrmsr(MSR_P4_CRU_ESCR4, 0, 0); - wrmsr(MSR_P4_CRU_ESCR5, 0, 0); - } else if (stag == 0) { - wrmsr(MSR_P4_CRU_ESCR4, 0, 0); - } else { - wrmsr(MSR_P4_CRU_ESCR5, 0, 0); - } - /* setup all counters */ for (i = 0 ; i < num_counters ; ++i) { - if (counter_config[i].enabled) { + if ((counter_config[i].enabled) && (CTRL_IS_RESERVED(msrs,i))) { reset_value[i] = counter_config[i].count; pmc_setup_one_p4_counter(i); CTR_WRITE(counter_config[i].count, VIRT_CTR(stag, i)); @@ -696,12 +670,32 @@ stag = get_stagger(); for (i = 0; i < num_counters; ++i) { + if (!reset_value[i]) + continue; CCCR_READ(low, high, VIRT_CTR(stag, i)); CCCR_SET_DISABLE(low); CCCR_WRITE(low, high, VIRT_CTR(stag, i)); } } +static void p4_shutdown(struct op_msrs const * const msrs) +{ + int i; + + for (i = 0 ; i < num_counters ; ++i) { + if (CTR_IS_RESERVED(msrs,i)) + release_perfctr_nmi(msrs->counters[i].addr); + } + /* some of the control registers are specially reserved in + * conjunction with the counter registers (hence the starting offset). + * This saves a few bits. + */ + for (i = num_counters ; i < num_controls ; ++i) { + if (CTRL_IS_RESERVED(msrs,i)) + release_evntsel_nmi(msrs->controls[i].addr); + } +} + #ifdef CONFIG_SMP struct op_x86_model_spec const op_p4_ht2_spec = { @@ -711,7 +705,8 @@ .setup_ctrs = &p4_setup_ctrs, .check_ctrs = &p4_check_ctrs, .start = &p4_start, - .stop = &p4_stop + .stop = &p4_stop, + .shutdown = &p4_shutdown }; #endif @@ -722,5 +717,6 @@ .setup_ctrs = &p4_setup_ctrs, .check_ctrs = &p4_check_ctrs, .start = &p4_start, - .stop = &p4_stop + .stop = &p4_stop, + .shutdown = &p4_shutdown };
diff --git a/arch/i386/oprofile/op_model_ppro.c b/arch/i386/oprofile/op_model_ppro.c index 5c3ab4b..f88e05b 100644 --- a/arch/i386/oprofile/op_model_ppro.c +++ b/arch/i386/oprofile/op_model_ppro.c
@@ -22,10 +22,12 @@ #define NUM_COUNTERS 2 #define NUM_CONTROLS 2 +#define CTR_IS_RESERVED(msrs,c) (msrs->counters[(c)].addr ? 1 : 0) #define CTR_READ(l,h,msrs,c) do {rdmsr(msrs->counters[(c)].addr, (l), (h));} while (0) #define CTR_WRITE(l,msrs,c) do {wrmsr(msrs->counters[(c)].addr, -(u32)(l), -1);} while (0) #define CTR_OVERFLOWED(n) (!((n) & (1U<<31))) +#define CTRL_IS_RESERVED(msrs,c) (msrs->controls[(c)].addr ? 1 : 0) #define CTRL_READ(l,h,msrs,c) do {rdmsr((msrs->controls[(c)].addr), (l), (h));} while (0) #define CTRL_WRITE(l,h,msrs,c) do {wrmsr((msrs->controls[(c)].addr), (l), (h));} while (0) #define CTRL_SET_ACTIVE(n) (n |= (1<<22)) @@ -41,11 +43,21 @@ static void ppro_fill_in_addresses(struct op_msrs * const msrs) { - msrs->counters[0].addr = MSR_P6_PERFCTR0; - msrs->counters[1].addr = MSR_P6_PERFCTR1; + int i; + + for (i=0; i < NUM_COUNTERS; i++) { + if (reserve_perfctr_nmi(MSR_P6_PERFCTR0 + i)) + msrs->counters[i].addr = MSR_P6_PERFCTR0 + i; + else + msrs->counters[i].addr = 0; + } - msrs->controls[0].addr = MSR_P6_EVNTSEL0; - msrs->controls[1].addr = MSR_P6_EVNTSEL1; + for (i=0; i < NUM_CONTROLS; i++) { + if (reserve_evntsel_nmi(MSR_P6_EVNTSEL0 + i)) + msrs->controls[i].addr = MSR_P6_EVNTSEL0 + i; + else + msrs->controls[i].addr = 0; + } } @@ -56,6 +68,8 @@ /* clear all counters */ for (i = 0 ; i < NUM_CONTROLS; ++i) { + if (unlikely(!CTRL_IS_RESERVED(msrs,i))) + continue; CTRL_READ(low, high, msrs, i); CTRL_CLEAR(low); CTRL_WRITE(low, high, msrs, i); @@ -63,12 +77,14 @@ /* avoid a false detection of ctr overflows in NMI handler */ for (i = 0; i < NUM_COUNTERS; ++i) { + if (unlikely(!CTR_IS_RESERVED(msrs,i))) + continue; CTR_WRITE(1, msrs, i); } /* enable active counters */ for (i = 0; i < NUM_COUNTERS; ++i) { - if (counter_config[i].enabled) { + if ((counter_config[i].enabled) && (CTR_IS_RESERVED(msrs,i))) { reset_value[i] = counter_config[i].count; CTR_WRITE(counter_config[i].count, msrs, i); @@ -81,6 +97,8 @@ CTRL_SET_UM(low, counter_config[i].unit_mask); CTRL_SET_EVENT(low, counter_config[i].event); CTRL_WRITE(low, high, msrs, i); + } else { + reset_value[i] = 0; } } } @@ -93,6 +111,8 @@ int i; for (i = 0 ; i < NUM_COUNTERS; ++i) { + if (!reset_value[i]) + continue; CTR_READ(low, high, msrs, i); if (CTR_OVERFLOWED(low)) { oprofile_add_sample(regs, i); @@ -118,18 +138,38 @@ static void ppro_start(struct op_msrs const * const msrs) { unsigned int low,high; - CTRL_READ(low, high, msrs, 0); - CTRL_SET_ACTIVE(low); - CTRL_WRITE(low, high, msrs, 0); + + if (reset_value[0]) { + CTRL_READ(low, high, msrs, 0); + CTRL_SET_ACTIVE(low); + CTRL_WRITE(low, high, msrs, 0); + } } static void ppro_stop(struct op_msrs const * const msrs) { unsigned int low,high; - CTRL_READ(low, high, msrs, 0); - CTRL_SET_INACTIVE(low); - CTRL_WRITE(low, high, msrs, 0); + + if (reset_value[0]) { + CTRL_READ(low, high, msrs, 0); + CTRL_SET_INACTIVE(low); + CTRL_WRITE(low, high, msrs, 0); + } +} + +static void ppro_shutdown(struct op_msrs const * const msrs) +{ + int i; + + for (i = 0 ; i < NUM_COUNTERS ; ++i) { + if (CTR_IS_RESERVED(msrs,i)) + release_perfctr_nmi(MSR_P6_PERFCTR0 + i); + } + for (i = 0 ; i < NUM_CONTROLS ; ++i) { + if (CTRL_IS_RESERVED(msrs,i)) + release_evntsel_nmi(MSR_P6_EVNTSEL0 + i); + } } @@ -140,5 +180,6 @@ .setup_ctrs = &ppro_setup_ctrs, .check_ctrs = &ppro_check_ctrs, .start = &ppro_start, - .stop = &ppro_stop + .stop = &ppro_stop, + .shutdown = &ppro_shutdown };
diff --git a/arch/i386/oprofile/op_x86_model.h b/arch/i386/oprofile/op_x86_model.h index 123b7e9..abb1aa9 100644 --- a/arch/i386/oprofile/op_x86_model.h +++ b/arch/i386/oprofile/op_x86_model.h
@@ -40,6 +40,7 @@ struct op_msrs const * const msrs); void (*start)(struct op_msrs const * const msrs); void (*stop)(struct op_msrs const * const msrs); + void (*shutdown)(struct op_msrs const * const msrs); }; extern struct op_x86_model_spec const op_ppro_spec;
diff --git a/arch/i386/pci/Makefile b/arch/i386/pci/Makefile index 62ad75c..1594d2f 100644 --- a/arch/i386/pci/Makefile +++ b/arch/i386/pci/Makefile
@@ -11,4 +11,4 @@ pci-$(CONFIG_X86_VISWS) := visws.o fixup.o pci-$(CONFIG_X86_NUMAQ) := numa.o irq.o -obj-y += $(pci-y) common.o +obj-y += $(pci-y) common.o early.o
diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c index 0a362e3..68bce194 100644 --- a/arch/i386/pci/common.c +++ b/arch/i386/pci/common.c
@@ -242,6 +242,10 @@ acpi_noirq_set(); return NULL; } + else if (!strcmp(str, "noearly")) { + pci_probe |= PCI_PROBE_NOEARLY; + return NULL; + } #ifndef CONFIG_X86_VISWS else if (!strcmp(str, "usepirqmask")) { pci_probe |= PCI_USE_PIRQ_MASK;
diff --git a/arch/i386/pci/direct.c b/arch/i386/pci/direct.c index 5d81fb5..5acf0b4 100644 --- a/arch/i386/pci/direct.c +++ b/arch/i386/pci/direct.c
@@ -254,7 +254,16 @@ return works; } -void __init pci_direct_init(void) +void __init pci_direct_init(int type) +{ + printk(KERN_INFO "PCI: Using configuration type %d\n", type); + if (type == 1) + raw_pci_ops = &pci_direct_conf1; + else + raw_pci_ops = &pci_direct_conf2; +} + +int __init pci_direct_probe(void) { struct resource *region, *region2; @@ -264,19 +273,16 @@ if (!region) goto type2; - if (pci_check_type1()) { - printk(KERN_INFO "PCI: Using configuration type 1\n"); - raw_pci_ops = &pci_direct_conf1; - return; - } + if (pci_check_type1()) + return 1; release_resource(region); type2: if ((pci_probe & PCI_PROBE_CONF2) == 0) - return; + return 0; region = request_region(0xCF8, 4, "PCI conf2"); if (!region) - return; + return 0; region2 = request_region(0xC000, 0x1000, "PCI conf2"); if (!region2) goto fail2; @@ -284,10 +290,11 @@ if (pci_check_type2()) { printk(KERN_INFO "PCI: Using configuration type 2\n"); raw_pci_ops = &pci_direct_conf2; - return; + return 2; } release_resource(region2); fail2: release_resource(region); + return 0; }
diff --git a/arch/i386/pci/early.c b/arch/i386/pci/early.c new file mode 100644 index 0000000..713d6c8 --- /dev/null +++ b/arch/i386/pci/early.c
@@ -0,0 +1,52 @@ +#include <linux/kernel.h> +#include <linux/pci.h> +#include <asm/pci-direct.h> +#include <asm/io.h> +#include "pci.h" + +/* Direct PCI access. This is used for PCI accesses in early boot before + the PCI subsystem works. */ + +#define PDprintk(x...) + +u32 read_pci_config(u8 bus, u8 slot, u8 func, u8 offset) +{ + u32 v; + outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); + v = inl(0xcfc); + if (v != 0xffffffff) + PDprintk("%x reading 4 from %x: %x\n", slot, offset, v); + return v; +} + +u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset) +{ + u8 v; + outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); + v = inb(0xcfc + (offset&3)); + PDprintk("%x reading 1 from %x: %x\n", slot, offset, v); + return v; +} + +u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset) +{ + u16 v; + outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); + v = inw(0xcfc + (offset&2)); + PDprintk("%x reading 2 from %x: %x\n", slot, offset, v); + return v; +} + +void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, + u32 val) +{ + PDprintk("%x writing to %x: %x\n", slot, offset, val); + outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); + outl(val, 0xcfc); +} + +int early_pci_allowed(void) +{ + return (pci_probe & (PCI_PROBE_CONF1|PCI_PROBE_NOEARLY)) == + PCI_PROBE_CONF1; +}
diff --git a/arch/i386/pci/init.c b/arch/i386/pci/init.c index 51087a9..d028e1b 100644 --- a/arch/i386/pci/init.c +++ b/arch/i386/pci/init.c
@@ -6,8 +6,13 @@ in the right sequence from here. */ static __init int pci_access_init(void) { + int type = 0; + +#ifdef CONFIG_PCI_DIRECT + type = pci_direct_probe(); +#endif #ifdef CONFIG_PCI_MMCONFIG - pci_mmcfg_init(); + pci_mmcfg_init(type); #endif if (raw_pci_ops) return 0; @@ -21,7 +26,7 @@ * fails. */ #ifdef CONFIG_PCI_DIRECT - pci_direct_init(); + pci_direct_init(type); #endif return 0; }
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c index 972180f..05be8db 100644 --- a/arch/i386/pci/mmconfig.c +++ b/arch/i386/pci/mmconfig.c
@@ -151,6 +151,38 @@ .write = pci_mmcfg_write, }; + +static __init void pci_mmcfg_insert_resources(void) +{ +#define PCI_MMCFG_RESOURCE_NAME_LEN 19 + int i; + struct resource *res; + char *names; + unsigned num_buses; + + res = kcalloc(PCI_MMCFG_RESOURCE_NAME_LEN + sizeof(*res), + pci_mmcfg_config_num, GFP_KERNEL); + + if (!res) { + printk(KERN_ERR "PCI: Unable to allocate MMCONFIG resources\n"); + return; + } + + names = (void *)&res[pci_mmcfg_config_num]; + for (i = 0; i < pci_mmcfg_config_num; i++, res++) { + num_buses = pci_mmcfg_config[i].end_bus_number - + pci_mmcfg_config[i].start_bus_number + 1; + res->name = names; + snprintf(names, PCI_MMCFG_RESOURCE_NAME_LEN, "PCI MMCONFIG %u", + pci_mmcfg_config[i].pci_segment_group_number); + res->start = pci_mmcfg_config[i].base_address; + res->end = res->start + (num_buses << 20) - 1; + res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + insert_resource(&iomem_resource, res); + names += PCI_MMCFG_RESOURCE_NAME_LEN; + } +} + /* K8 systems have some devices (typically in the builtin northbridge) that are only accessible using type1 Normally this can be expressed in the MCFG by not listing them @@ -187,7 +219,9 @@ } } -void __init pci_mmcfg_init(void) + + +void __init pci_mmcfg_init(int type) { if ((pci_probe & PCI_PROBE_MMCONF) == 0) return; @@ -198,7 +232,9 @@ (pci_mmcfg_config[0].base_address == 0)) return; - if (!e820_all_mapped(pci_mmcfg_config[0].base_address, + /* Only do this check when type 1 works. If it doesn't work + assume we run on a Mac and always use MCFG */ + if (type == 1 && !e820_all_mapped(pci_mmcfg_config[0].base_address, pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN, E820_RESERVED)) { printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n", @@ -212,4 +248,5 @@ pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF; unreachable_devices(); + pci_mmcfg_insert_resources(); }
diff --git a/arch/i386/pci/pci.h b/arch/i386/pci/pci.h index bf4e793..1814f74 100644 --- a/arch/i386/pci/pci.h +++ b/arch/i386/pci/pci.h
@@ -17,6 +17,7 @@ #define PCI_PROBE_CONF2 0x0004 #define PCI_PROBE_MMCONF 0x0008 #define PCI_PROBE_MASK 0x000f +#define PCI_PROBE_NOEARLY 0x0010 #define PCI_NO_SORT 0x0100 #define PCI_BIOS_SORT 0x0200 @@ -81,7 +82,9 @@ extern int pci_conf1_read(unsigned int seg, unsigned int bus, unsigned int devfn, int reg, int len, u32 *value); -extern void pci_direct_init(void); +extern int pci_direct_probe(void); +extern void pci_direct_init(int type); extern void pci_pcbios_init(void); -extern void pci_mmcfg_init(void); +extern void pci_mmcfg_init(int type); extern void pcibios_sort(void); +
diff --git a/arch/i386/power/swsusp.S b/arch/i386/power/swsusp.S index c893b89..8a2b50a 100644 --- a/arch/i386/power/swsusp.S +++ b/arch/i386/power/swsusp.S
@@ -32,7 +32,7 @@ movl $swsusp_pg_dir-__PAGE_OFFSET, %ecx movl %ecx, %cr3 - movl pagedir_nosave, %edx + movl restore_pblist, %edx .p2align 4,,7 copy_loop:
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index db274da..0b7f701 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig
@@ -66,15 +66,6 @@ bool select GENERIC_ALLOCATOR -config DMA_IS_DMA32 - bool - default y - -config DMA_IS_NORMAL - bool - depends on IA64_SGI_SN2 - default y - config AUDIT_ARCH bool default y @@ -365,6 +356,9 @@ MAX_NUMNODES will be 2^(This value). If in doubt, use the default. +config ARCH_POPULATES_NODE_MAP + def_bool y + # VIRTUAL_MEM_MAP and FLAT_NODE_MEM_MAP are functionally equivalent. # VIRTUAL_MEM_MAP has been retained for historical reasons. config VIRTUAL_MEM_MAP @@ -429,6 +423,14 @@ config SGI_SN def_bool y if (IA64_SGI_SN2 || IA64_GENERIC) +config IA64_ESI + bool "ESI (Extensible SAL Interface) support" + help + If you say Y here, support is built into the kernel to + make ESI calls. ESI calls are used to support vendor-specific + firmware extensions, such as the ability to inject memory-errors + for test-purposes. If you're unsure, say N. + source "drivers/sn/Kconfig" source "drivers/firmware/Kconfig"
diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c index 6aa3c51..bddbd22 100644 --- a/arch/ia64/ia32/sys_ia32.c +++ b/arch/ia64/ia32/sys_ia32.c
@@ -1942,7 +1942,7 @@ unsigned int __unused[4]; }; -#ifdef CONFIG_SYSCTL +#ifdef CONFIG_SYSCTL_SYSCALL asmlinkage long sys32_sysctl (struct sysctl32 __user *args) {
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile index ad8215a..3149749 100644 --- a/arch/ia64/kernel/Makefile +++ b/arch/ia64/kernel/Makefile
@@ -32,6 +32,11 @@ obj-$(CONFIG_AUDIT) += audit.o mca_recovery-y += mca_drv.o mca_drv_asm.o +obj-$(CONFIG_IA64_ESI) += esi.o +ifneq ($(CONFIG_IA64_ESI),) +obj-y += esi_stub.o # must be in kernel proper +endif + # The gate DSO image is built using a special linker script. targets += gate.so gate-syms.o
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 0176556..32c3abed 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c
@@ -771,16 +771,19 @@ { #ifdef CONFIG_ACPI_NUMA int pxm_id; + int nid; pxm_id = acpi_get_pxm(handle); - /* - * Assuming that the container driver would have set the proximity - * domain and would have initialized pxm_to_node(pxm_id) && pxm_flag + * We don't have cpu-only-node hotadd. But if the system equips + * SRAT table, pxm is already found and node is ready. + * So, just pxm_to_nid(pxm) is OK. + * This code here is for the system which doesn't have full SRAT + * table for possible cpus. */ - node_cpuid[cpu].nid = (pxm_id < 0) ? 0 : pxm_to_node(pxm_id); - + nid = acpi_map_pxm_to_node(pxm_id); node_cpuid[cpu].phys_id = physid; + node_cpuid[cpu].nid = nid; #endif return (0); }
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index fef0657..12701cf 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S
@@ -1605,8 +1605,8 @@ data8 sys_ni_syscall // 1295 reserved for ppoll data8 sys_unshare data8 sys_splice - data8 sys_ni_syscall // reserved for set_robust_list - data8 sys_ni_syscall // reserved for get_robust_list + data8 sys_set_robust_list + data8 sys_get_robust_list data8 sys_sync_file_range // 1300 data8 sys_tee data8 sys_vmsplice
diff --git a/arch/ia64/kernel/esi.c b/arch/ia64/kernel/esi.c new file mode 100644 index 0000000..ebf4e98 --- /dev/null +++ b/arch/ia64/kernel/esi.c
@@ -0,0 +1,205 @@ +/* + * Extensible SAL Interface (ESI) support routines. + * + * Copyright (C) 2006 Hewlett-Packard Co + * Alex Williamson <alex.williamson@hp.com> + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/string.h> + +#include <asm/esi.h> +#include <asm/sal.h> + +MODULE_AUTHOR("Alex Williamson <alex.williamson@hp.com>"); +MODULE_DESCRIPTION("Extensible SAL Interface (ESI) support"); +MODULE_LICENSE("GPL"); + +#define MODULE_NAME "esi" + +#define ESI_TABLE_GUID \ + EFI_GUID(0x43EA58DC, 0xCF28, 0x4b06, 0xB3, \ + 0x91, 0xB7, 0x50, 0x59, 0x34, 0x2B, 0xD4) + +enum esi_systab_entry_type { + ESI_DESC_ENTRY_POINT = 0 +}; + +/* + * Entry type: Size: + * 0 48 + */ +#define ESI_DESC_SIZE(type) "\060"[(unsigned) (type)] + +typedef struct ia64_esi_desc_entry_point { + u8 type; + u8 reserved1[15]; + u64 esi_proc; + u64 gp; + efi_guid_t guid; +} ia64_esi_desc_entry_point_t; + +struct pdesc { + void *addr; + void *gp; +}; + +static struct ia64_sal_systab *esi_systab; + +static int __init esi_init (void) +{ + efi_config_table_t *config_tables; + struct ia64_sal_systab *systab; + unsigned long esi = 0; + char *p; + int i; + + config_tables = __va(efi.systab->tables); + + for (i = 0; i < (int) efi.systab->nr_tables; ++i) { + if (efi_guidcmp(config_tables[i].guid, ESI_TABLE_GUID) == 0) { + esi = config_tables[i].table; + break; + } + } + + if (!esi) + return -ENODEV;; + + systab = __va(esi); + + if (strncmp(systab->signature, "ESIT", 4) != 0) { + printk(KERN_ERR "bad signature in ESI system table!"); + return -ENODEV; + } + + p = (char *) (systab + 1); + for (i = 0; i < systab->entry_count; i++) { + /* + * The first byte of each entry type contains the type + * descriptor. + */ + switch (*p) { + case ESI_DESC_ENTRY_POINT: + break; + default: + printk(KERN_WARNING "Unkown table type %d found in " + "ESI table, ignoring rest of table\n", *p); + return -ENODEV; + } + + p += ESI_DESC_SIZE(*p); + } + + esi_systab = systab; + return 0; +} + + +int ia64_esi_call (efi_guid_t guid, struct ia64_sal_retval *isrvp, + enum esi_proc_type proc_type, u64 func, + u64 arg1, u64 arg2, u64 arg3, u64 arg4, u64 arg5, u64 arg6, + u64 arg7) +{ + struct ia64_fpreg fr[6]; + unsigned long flags = 0; + int i; + char *p; + + if (!esi_systab) + return -1; + + p = (char *) (esi_systab + 1); + for (i = 0; i < esi_systab->entry_count; i++) { + if (*p == ESI_DESC_ENTRY_POINT) { + ia64_esi_desc_entry_point_t *esi = (void *)p; + if (!efi_guidcmp(guid, esi->guid)) { + ia64_sal_handler esi_proc; + struct pdesc pdesc; + + pdesc.addr = __va(esi->esi_proc); + pdesc.gp = __va(esi->gp); + + esi_proc = (ia64_sal_handler) &pdesc; + + ia64_save_scratch_fpregs(fr); + if (proc_type == ESI_PROC_SERIALIZED) + spin_lock_irqsave(&sal_lock, flags); + else if (proc_type == ESI_PROC_MP_SAFE) + local_irq_save(flags); + else + preempt_disable(); + *isrvp = (*esi_proc)(func, arg1, arg2, arg3, + arg4, arg5, arg6, arg7); + if (proc_type == ESI_PROC_SERIALIZED) + spin_unlock_irqrestore(&sal_lock, + flags); + else if (proc_type == ESI_PROC_MP_SAFE) + local_irq_restore(flags); + else + preempt_enable(); + ia64_load_scratch_fpregs(fr); + return 0; + } + } + p += ESI_DESC_SIZE(*p); + } + return -1; +} +EXPORT_SYMBOL_GPL(ia64_esi_call); + +int ia64_esi_call_phys (efi_guid_t guid, struct ia64_sal_retval *isrvp, + u64 func, u64 arg1, u64 arg2, u64 arg3, u64 arg4, + u64 arg5, u64 arg6, u64 arg7) +{ + struct ia64_fpreg fr[6]; + unsigned long flags; + u64 esi_params[8]; + char *p; + int i; + + if (!esi_systab) + return -1; + + p = (char *) (esi_systab + 1); + for (i = 0; i < esi_systab->entry_count; i++) { + if (*p == ESI_DESC_ENTRY_POINT) { + ia64_esi_desc_entry_point_t *esi = (void *)p; + if (!efi_guidcmp(guid, esi->guid)) { + ia64_sal_handler esi_proc; + struct pdesc pdesc; + + pdesc.addr = (void *)esi->esi_proc; + pdesc.gp = (void *)esi->gp; + + esi_proc = (ia64_sal_handler) &pdesc; + + esi_params[0] = func; + esi_params[1] = arg1; + esi_params[2] = arg2; + esi_params[3] = arg3; + esi_params[4] = arg4; + esi_params[5] = arg5; + esi_params[6] = arg6; + esi_params[7] = arg7; + ia64_save_scratch_fpregs(fr); + spin_lock_irqsave(&sal_lock, flags); + *isrvp = esi_call_phys(esi_proc, esi_params); + spin_unlock_irqrestore(&sal_lock, flags); + ia64_load_scratch_fpregs(fr); + return 0; + } + } + p += ESI_DESC_SIZE(*p); + } + return -1; +} +EXPORT_SYMBOL_GPL(ia64_esi_call_phys); + +static void __exit esi_exit (void) +{ +} + +module_init(esi_init); +module_exit(esi_exit); /* makes module removable... */
diff --git a/arch/ia64/kernel/esi_stub.S b/arch/ia64/kernel/esi_stub.S new file mode 100644 index 0000000..6b3d6c1 --- /dev/null +++ b/arch/ia64/kernel/esi_stub.S
@@ -0,0 +1,96 @@ +/* + * ESI call stub. + * + * Copyright (C) 2005 Hewlett-Packard Co + * Alex Williamson <alex.williamson@hp.com> + * + * Based on EFI call stub by David Mosberger. The stub is virtually + * identical to the one for EFI phys-mode calls, except that ESI + * calls may have up to 8 arguments, so they get passed to this routine + * through memory. + * + * This stub allows us to make ESI calls in physical mode with interrupts + * turned off. ESI calls may not support calling from virtual mode. + * + * Google for "Extensible SAL specification" for a document describing the + * ESI standard. + */ + +/* + * PSR settings as per SAL spec (Chapter 8 in the "IA-64 System + * Abstraction Layer Specification", revision 2.6e). Note that + * psr.dfl and psr.dfh MUST be cleared, despite what this manual says. + * Otherwise, SAL dies whenever it's trying to do an IA-32 BIOS call + * (the br.ia instruction fails unless psr.dfl and psr.dfh are + * cleared). Fortunately, SAL promises not to touch the floating + * point regs, so at least we don't have to save f2-f127. + */ +#define PSR_BITS_TO_CLEAR \ + (IA64_PSR_I | IA64_PSR_IT | IA64_PSR_DT | IA64_PSR_RT | \ + IA64_PSR_DD | IA64_PSR_SS | IA64_PSR_RI | IA64_PSR_ED | \ + IA64_PSR_DFL | IA64_PSR_DFH) + +#define PSR_BITS_TO_SET \ + (IA64_PSR_BN) + +#include <asm/processor.h> +#include <asm/asmmacro.h> + +/* + * Inputs: + * in0 = address of function descriptor of ESI routine to call + * in1 = address of array of ESI parameters + * + * Outputs: + * r8 = result returned by called function + */ +GLOBAL_ENTRY(esi_call_phys) + .prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(2) + alloc loc1=ar.pfs,2,7,8,0 + ld8 r2=[in0],8 // load ESI function's entry point + mov loc0=rp + .body + ;; + ld8 out0=[in1],8 // ESI params loaded from array + ;; // passing all as inputs doesn't work + ld8 out1=[in1],8 + ;; + ld8 out2=[in1],8 + ;; + ld8 out3=[in1],8 + ;; + ld8 out4=[in1],8 + ;; + ld8 out5=[in1],8 + ;; + ld8 out6=[in1],8 + ;; + ld8 out7=[in1] + mov loc2=gp // save global pointer + mov loc4=ar.rsc // save RSE configuration + mov ar.rsc=0 // put RSE in enforced lazy, LE mode + ;; + ld8 gp=[in0] // load ESI function's global pointer + movl r16=PSR_BITS_TO_CLEAR + mov loc3=psr // save processor status word + movl r17=PSR_BITS_TO_SET + ;; + or loc3=loc3,r17 + mov b6=r2 + ;; + andcm r16=loc3,r16 // get psr with IT, DT, and RT bits cleared + br.call.sptk.many rp=ia64_switch_mode_phys +.ret0: mov loc5=r19 // old ar.bsp + mov loc6=r20 // old sp + br.call.sptk.many rp=b6 // call the ESI function +.ret1: mov ar.rsc=0 // put RSE in enforced lazy, LE mode + mov r16=loc3 // save virtual mode psr + mov r19=loc5 // save virtual mode bspstore + mov r20=loc6 // save virtual mode sp + br.call.sptk.many rp=ia64_switch_mode_virt // return to virtual mode +.ret2: mov ar.rsc=loc4 // restore RSE configuration + mov ar.pfs=loc1 + mov rp=loc0 + mov gp=loc2 + br.ret.sptk.many rp +END(esi_call_phys)
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c index 3ead20f..879c181 100644 --- a/arch/ia64/kernel/ia64_ksyms.c +++ b/arch/ia64/kernel/ia64_ksyms.c
@@ -105,5 +105,9 @@ # endif #endif +#if defined(CONFIG_IA64_ESI) || defined(CONFIG_IA64_ESI_MODULE) +extern void esi_call_phys (void); +EXPORT_SYMBOL_GPL(esi_call_phys); +#endif extern char ia64_ivt[]; EXPORT_SYMBOL(ia64_ivt);
diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c index 781960f..169ec3a 100644 --- a/arch/ia64/kernel/kprobes.c +++ b/arch/ia64/kernel/kprobes.c
@@ -136,10 +136,8 @@ static int __kprobes unsupported_inst(uint template, uint slot, uint major_opcode, unsigned long kprobe_inst, - struct kprobe *p) + unsigned long addr) { - unsigned long addr = (unsigned long)p->addr; - if (bundle_encoding[template][slot] == I) { switch (major_opcode) { case 0x0: //I_UNIT_MISC_OPCODE: @@ -217,7 +215,7 @@ struct kprobe *p) { unsigned long break_inst = BREAK_INST; - bundle_t *bundle = &p->ainsn.insn.bundle; + bundle_t *bundle = &p->opcode.bundle; /* * Copy the original kprobe_inst qualifying predicate(qp) @@ -423,11 +421,9 @@ unsigned long *kprobe_addr = (unsigned long *)(addr & ~0xFULL); unsigned long kprobe_inst=0; unsigned int slot = addr & 0xf, template, major_opcode = 0; - bundle_t *bundle = &p->ainsn.insn.bundle; + bundle_t *bundle; - memcpy(&p->opcode.bundle, kprobe_addr, sizeof(bundle_t)); - memcpy(&p->ainsn.insn.bundle, kprobe_addr, sizeof(bundle_t)); - + bundle = &((kprobe_opcode_t *)kprobe_addr)->bundle; template = bundle->quad0.template; if(valid_kprobe_addr(template, slot, addr)) @@ -440,30 +436,30 @@ /* Get kprobe_inst and major_opcode from the bundle */ get_kprobe_inst(bundle, slot, &kprobe_inst, &major_opcode); - if (unsupported_inst(template, slot, major_opcode, kprobe_inst, p)) + if (unsupported_inst(template, slot, major_opcode, kprobe_inst, addr)) return -EINVAL; + + p->ainsn.insn = get_insn_slot(); + if (!p->ainsn.insn) + return -ENOMEM; + memcpy(&p->opcode, kprobe_addr, sizeof(kprobe_opcode_t)); + memcpy(p->ainsn.insn, kprobe_addr, sizeof(kprobe_opcode_t)); + prepare_break_inst(template, slot, major_opcode, kprobe_inst, p); return 0; } -void __kprobes flush_insn_slot(struct kprobe *p) -{ - unsigned long arm_addr; - - arm_addr = ((unsigned long)&p->opcode.bundle) & ~0xFULL; - flush_icache_range(arm_addr, arm_addr + sizeof(bundle_t)); -} - void __kprobes arch_arm_kprobe(struct kprobe *p) { unsigned long addr = (unsigned long)p->addr; unsigned long arm_addr = addr & ~0xFULL; - flush_insn_slot(p); - memcpy((char *)arm_addr, &p->ainsn.insn.bundle, sizeof(bundle_t)); - flush_icache_range(arm_addr, arm_addr + sizeof(bundle_t)); + flush_icache_range((unsigned long)p->ainsn.insn, + (unsigned long)p->ainsn.insn + sizeof(kprobe_opcode_t)); + memcpy((char *)arm_addr, &p->opcode, sizeof(kprobe_opcode_t)); + flush_icache_range(arm_addr, arm_addr + sizeof(kprobe_opcode_t)); } void __kprobes arch_disarm_kprobe(struct kprobe *p) @@ -471,11 +467,18 @@ unsigned long addr = (unsigned long)p->addr; unsigned long arm_addr = addr & ~0xFULL; - /* p->opcode contains the original unaltered bundle */ - memcpy((char *) arm_addr, (char *) &p->opcode.bundle, sizeof(bundle_t)); - flush_icache_range(arm_addr, arm_addr + sizeof(bundle_t)); + /* p->ainsn.insn contains the original unaltered kprobe_opcode_t */ + memcpy((char *) arm_addr, (char *) p->ainsn.insn, + sizeof(kprobe_opcode_t)); + flush_icache_range(arm_addr, arm_addr + sizeof(kprobe_opcode_t)); } +void __kprobes arch_remove_kprobe(struct kprobe *p) +{ + mutex_lock(&kprobe_mutex); + free_insn_slot(p->ainsn.insn); + mutex_unlock(&kprobe_mutex); +} /* * We are resuming execution after a single step fault, so the pt_regs * structure reflects the register state after we executed the instruction @@ -486,12 +489,12 @@ */ static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs) { - unsigned long bundle_addr = ((unsigned long) (&p->opcode.bundle)) & ~0xFULL; + unsigned long bundle_addr = (unsigned long) (&p->ainsn.insn->bundle); unsigned long resume_addr = (unsigned long)p->addr & ~0xFULL; unsigned long template; int slot = ((unsigned long)p->addr & 0xf); - template = p->opcode.bundle.quad0.template; + template = p->ainsn.insn->bundle.quad0.template; if (slot == 1 && bundle_encoding[template][1] == L) slot = 2; @@ -553,7 +556,7 @@ static void __kprobes prepare_ss(struct kprobe *p, struct pt_regs *regs) { - unsigned long bundle_addr = (unsigned long) &p->opcode.bundle; + unsigned long bundle_addr = (unsigned long) &p->ainsn.insn->bundle; unsigned long slot = (unsigned long)p->addr & 0xf; /* single step inline if break instruction */ @@ -768,6 +771,12 @@ */ if (cur->fault_handler && cur->fault_handler(cur, regs, trapnr)) return 1; + /* + * In case the user-specified fault handler returned + * zero, try to fix up. + */ + if (ia64_done_with_exception(regs)) + return 1; /* * Let ia64_do_page_fault() fix it.
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index 2fbe453..bfbd898 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c
@@ -54,6 +54,9 @@ * * 2005-10-07 Keith Owens <kaos@sgi.com> * Add notify_die() hooks. + * + * 2006-09-15 Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> + * Add printing support for MCA/INIT. */ #include <linux/types.h> #include <linux/init.h> @@ -136,11 +139,175 @@ static int mca_init __initdata; +/* + * limited & delayed printing support for MCA/INIT handler + */ + +#define mprintk(fmt...) ia64_mca_printk(fmt) + +#define MLOGBUF_SIZE (512+256*NR_CPUS) +#define MLOGBUF_MSGMAX 256 +static char mlogbuf[MLOGBUF_SIZE]; +static DEFINE_SPINLOCK(mlogbuf_wlock); /* mca context only */ +static DEFINE_SPINLOCK(mlogbuf_rlock); /* normal context only */ +static unsigned long mlogbuf_start; +static unsigned long mlogbuf_end; +static unsigned int mlogbuf_finished = 0; +static unsigned long mlogbuf_timestamp = 0; + +static int loglevel_save = -1; +#define BREAK_LOGLEVEL(__console_loglevel) \ + oops_in_progress = 1; \ + if (loglevel_save < 0) \ + loglevel_save = __console_loglevel; \ + __console_loglevel = 15; + +#define RESTORE_LOGLEVEL(__console_loglevel) \ + if (loglevel_save >= 0) { \ + __console_loglevel = loglevel_save; \ + loglevel_save = -1; \ + } \ + mlogbuf_finished = 0; \ + oops_in_progress = 0; + +/* + * Push messages into buffer, print them later if not urgent. + */ +void ia64_mca_printk(const char *fmt, ...) +{ + va_list args; + int printed_len; + char temp_buf[MLOGBUF_MSGMAX]; + char *p; + + va_start(args, fmt); + printed_len = vscnprintf(temp_buf, sizeof(temp_buf), fmt, args); + va_end(args); + + /* Copy the output into mlogbuf */ + if (oops_in_progress) { + /* mlogbuf was abandoned, use printk directly instead. */ + printk(temp_buf); + } else { + spin_lock(&mlogbuf_wlock); + for (p = temp_buf; *p; p++) { + unsigned long next = (mlogbuf_end + 1) % MLOGBUF_SIZE; + if (next != mlogbuf_start) { + mlogbuf[mlogbuf_end] = *p; + mlogbuf_end = next; + } else { + /* buffer full */ + break; + } + } + mlogbuf[mlogbuf_end] = '\0'; + spin_unlock(&mlogbuf_wlock); + } +} +EXPORT_SYMBOL(ia64_mca_printk); + +/* + * Print buffered messages. + * NOTE: call this after returning normal context. (ex. from salinfod) + */ +void ia64_mlogbuf_dump(void) +{ + char temp_buf[MLOGBUF_MSGMAX]; + char *p; + unsigned long index; + unsigned long flags; + unsigned int printed_len; + + /* Get output from mlogbuf */ + while (mlogbuf_start != mlogbuf_end) { + temp_buf[0] = '\0'; + p = temp_buf; + printed_len = 0; + + spin_lock_irqsave(&mlogbuf_rlock, flags); + + index = mlogbuf_start; + while (index != mlogbuf_end) { + *p = mlogbuf[index]; + index = (index + 1) % MLOGBUF_SIZE; + if (!*p) + break; + p++; + if (++printed_len >= MLOGBUF_MSGMAX - 1) + break; + } + *p = '\0'; + if (temp_buf[0]) + printk(temp_buf); + mlogbuf_start = index; + + mlogbuf_timestamp = 0; + spin_unlock_irqrestore(&mlogbuf_rlock, flags); + } +} +EXPORT_SYMBOL(ia64_mlogbuf_dump); + +/* + * Call this if system is going to down or if immediate flushing messages to + * console is required. (ex. recovery was failed, crash dump is going to be + * invoked, long-wait rendezvous etc.) + * NOTE: this should be called from monarch. + */ +static void ia64_mlogbuf_finish(int wait) +{ + BREAK_LOGLEVEL(console_loglevel); + + spin_lock_init(&mlogbuf_rlock); + ia64_mlogbuf_dump(); + printk(KERN_EMERG "mlogbuf_finish: printing switched to urgent mode, " + "MCA/INIT might be dodgy or fail.\n"); + + if (!wait) + return; + + /* wait for console */ + printk("Delaying for 5 seconds...\n"); + udelay(5*1000000); + + mlogbuf_finished = 1; +} +EXPORT_SYMBOL(ia64_mlogbuf_finish); + +/* + * Print buffered messages from INIT context. + */ +static void ia64_mlogbuf_dump_from_init(void) +{ + if (mlogbuf_finished) + return; + + if (mlogbuf_timestamp && (mlogbuf_timestamp + 30*HZ > jiffies)) { + printk(KERN_ERR "INIT: mlogbuf_dump is interrupted by INIT " + " and the system seems to be messed up.\n"); + ia64_mlogbuf_finish(0); + return; + } + + if (!spin_trylock(&mlogbuf_rlock)) { + printk(KERN_ERR "INIT: mlogbuf_dump is interrupted by INIT. " + "Generated messages other than stack dump will be " + "buffered to mlogbuf and will be printed later.\n"); + printk(KERN_ERR "INIT: If messages would not printed after " + "this INIT, wait 30sec and assert INIT again.\n"); + if (!mlogbuf_timestamp) + mlogbuf_timestamp = jiffies; + return; + } + spin_unlock(&mlogbuf_rlock); + ia64_mlogbuf_dump(); +} static void inline ia64_mca_spin(const char *func) { - printk(KERN_EMERG "%s: spinning here, not returning to SAL\n", func); + if (monarch_cpu == smp_processor_id()) + ia64_mlogbuf_finish(0); + mprintk(KERN_EMERG "%s: spinning here, not returning to SAL\n", func); while (1) cpu_relax(); } @@ -344,9 +511,6 @@ /* SAL spec states this should run w/ interrupts enabled */ local_irq_enable(); - /* Get the CPE error record and log it */ - ia64_mca_log_sal_error_record(SAL_INFO_TYPE_CPE); - spin_lock(&cpe_history_lock); if (!cpe_poll_enabled && cpe_vector >= 0) { @@ -375,7 +539,7 @@ mod_timer(&cpe_poll_timer, jiffies + MIN_CPE_POLL_INTERVAL); /* lock already released, get out now */ - return IRQ_HANDLED; + goto out; } else { cpe_history[index++] = now; if (index == CPE_HISTORY_LENGTH) @@ -383,6 +547,10 @@ } } spin_unlock(&cpe_history_lock); +out: + /* Get the CPE error record and log it */ + ia64_mca_log_sal_error_record(SAL_INFO_TYPE_CPE); + return IRQ_HANDLED; } @@ -988,18 +1156,22 @@ } if (!missing) goto all_in; - printk(KERN_INFO "OS %s slave did not rendezvous on cpu", type); + /* + * Maybe slave(s) dead. Print buffered messages immediately. + */ + ia64_mlogbuf_finish(0); + mprintk(KERN_INFO "OS %s slave did not rendezvous on cpu", type); for_each_online_cpu(c) { if (c == monarch) continue; if (ia64_mc_info.imi_rendez_checkin[c] == IA64_MCA_RENDEZ_CHECKIN_NOTDONE) - printk(" %d", c); + mprintk(" %d", c); } - printk("\n"); + mprintk("\n"); return; all_in: - printk(KERN_INFO "All OS %s slaves have reached rendezvous\n", type); + mprintk(KERN_INFO "All OS %s slaves have reached rendezvous\n", type); return; } @@ -1027,10 +1199,8 @@ struct ia64_mca_notify_die nd = { .sos = sos, .monarch_cpu = &monarch_cpu }; - oops_in_progress = 1; /* FIXME: make printk NMI/MCA/INIT safe */ - console_loglevel = 15; /* make sure printks make it to console */ - printk(KERN_INFO "Entered OS MCA handler. PSP=%lx cpu=%d monarch=%ld\n", - sos->proc_state_param, cpu, sos->monarch); + mprintk(KERN_INFO "Entered OS MCA handler. PSP=%lx cpu=%d " + "monarch=%ld\n", sos->proc_state_param, cpu, sos->monarch); previous_current = ia64_mca_modify_original_stack(regs, sw, sos, "MCA"); monarch_cpu = cpu; @@ -1066,6 +1236,9 @@ rh->severity = sal_log_severity_corrected; ia64_sal_clear_state_info(SAL_INFO_TYPE_MCA); sos->os_status = IA64_MCA_CORRECTED; + } else { + /* Dump buffered message to console */ + ia64_mlogbuf_finish(1); } if (notify_die(DIE_MCA_MONARCH_LEAVE, "MCA", regs, (long)&nd, 0, recover) == NOTIFY_STOP) @@ -1106,9 +1279,6 @@ /* SAL spec states this should run w/ interrupts enabled */ local_irq_enable(); - /* Get the CMC error record and log it */ - ia64_mca_log_sal_error_record(SAL_INFO_TYPE_CMC); - spin_lock(&cmc_history_lock); if (!cmc_polling_enabled) { int i, count = 1; /* we know 1 happened now */ @@ -1141,7 +1311,7 @@ mod_timer(&cmc_poll_timer, jiffies + CMC_POLL_INTERVAL); /* lock already released, get out now */ - return IRQ_HANDLED; + goto out; } else { cmc_history[index++] = now; if (index == CMC_HISTORY_LENGTH) @@ -1149,6 +1319,10 @@ } } spin_unlock(&cmc_history_lock); +out: + /* Get the CMC error record and log it */ + ia64_mca_log_sal_error_record(SAL_INFO_TYPE_CMC); + return IRQ_HANDLED; } @@ -1305,6 +1479,15 @@ struct task_struct *g, *t; if (val != DIE_INIT_MONARCH_PROCESS) return NOTIFY_DONE; + + /* + * FIXME: mlogbuf will brim over with INIT stack dumps. + * To enable show_stack from INIT, we use oops_in_progress which should + * be used in real oops. This would cause something wrong after INIT. + */ + BREAK_LOGLEVEL(console_loglevel); + ia64_mlogbuf_dump_from_init(); + printk(KERN_ERR "Processes interrupted by INIT -"); for_each_online_cpu(c) { struct ia64_sal_os_state *s; @@ -1326,6 +1509,8 @@ } while_each_thread (g, t); read_unlock(&tasklist_lock); } + /* FIXME: This will not restore zapped printk locks. */ + RESTORE_LOGLEVEL(console_loglevel); return NOTIFY_DONE; } @@ -1357,12 +1542,9 @@ struct ia64_mca_notify_die nd = { .sos = sos, .monarch_cpu = &monarch_cpu }; - oops_in_progress = 1; /* FIXME: make printk NMI/MCA/INIT safe */ - console_loglevel = 15; /* make sure printks make it to console */ - (void) notify_die(DIE_INIT_ENTER, "INIT", regs, (long)&nd, 0, 0); - printk(KERN_INFO "Entered OS INIT handler. PSP=%lx cpu=%d monarch=%ld\n", + mprintk(KERN_INFO "Entered OS INIT handler. PSP=%lx cpu=%d monarch=%ld\n", sos->proc_state_param, cpu, sos->monarch); salinfo_log_wakeup(SAL_INFO_TYPE_INIT, NULL, 0, 0); @@ -1375,7 +1557,7 @@ * fix their proms and get their customers updated. */ if (!sos->monarch && atomic_add_return(1, &slaves) == num_online_cpus()) { - printk(KERN_WARNING "%s: Promoting cpu %d to monarch.\n", + mprintk(KERN_WARNING "%s: Promoting cpu %d to monarch.\n", __FUNCTION__, cpu); atomic_dec(&slaves); sos->monarch = 1; @@ -1387,7 +1569,7 @@ * fix their proms and get their customers updated. */ if (sos->monarch && atomic_add_return(1, &monarchs) > 1) { - printk(KERN_WARNING "%s: Demoting cpu %d to slave.\n", + mprintk(KERN_WARNING "%s: Demoting cpu %d to slave.\n", __FUNCTION__, cpu); atomic_dec(&monarchs); sos->monarch = 0; @@ -1408,7 +1590,7 @@ if (notify_die(DIE_INIT_SLAVE_LEAVE, "INIT", regs, (long)&nd, 0, 0) == NOTIFY_STOP) ia64_mca_spin(__FUNCTION__); - printk("Slave on cpu %d returning to normal service.\n", cpu); + mprintk("Slave on cpu %d returning to normal service.\n", cpu); set_curr_task(cpu, previous_current); ia64_mc_info.imi_rendez_checkin[cpu] = IA64_MCA_RENDEZ_CHECKIN_NOTDONE; atomic_dec(&slaves); @@ -1426,7 +1608,7 @@ * same serial line, the user will need some time to switch out of the BMC before * the dump begins. */ - printk("Delaying for 5 seconds...\n"); + mprintk("Delaying for 5 seconds...\n"); udelay(5*1000000); ia64_wait_for_slaves(cpu, "INIT"); /* If nobody intercepts DIE_INIT_MONARCH_PROCESS then we drop through @@ -1439,7 +1621,7 @@ if (notify_die(DIE_INIT_MONARCH_LEAVE, "INIT", regs, (long)&nd, 0, 0) == NOTIFY_STOP) ia64_mca_spin(__FUNCTION__); - printk("\nINIT dump complete. Monarch on cpu %d returning to normal service.\n", cpu); + mprintk("\nINIT dump complete. Monarch on cpu %d returning to normal service.\n", cpu); atomic_dec(&monarchs); set_curr_task(cpu, previous_current); monarch_cpu = -1;
diff --git a/arch/ia64/kernel/mca_asm.S b/arch/ia64/kernel/mca_asm.S index 9604749..c6b607c 100644 --- a/arch/ia64/kernel/mca_asm.S +++ b/arch/ia64/kernel/mca_asm.S
@@ -1025,18 +1025,13 @@ ia64_set_kernel_registers: add temp3=MCA_SP_OFFSET, r3 - add temp4=MCA_SOS_OFFSET+SOS(OS_GP), r3 mov b0=r2 // save return address GET_IA64_MCA_DATA(temp1) ;; - add temp4=temp4, temp1 // &struct ia64_sal_os_state.os_gp add r12=temp1, temp3 // kernel stack pointer on MCA/INIT stack add r13=temp1, r3 // set current to start of MCA/INIT stack add r20=temp1, r3 // physical start of MCA/INIT stack ;; - ld8 r1=[temp4] // OS GP from SAL OS state - ;; - DATA_PA_TO_VA(r1,temp1) DATA_PA_TO_VA(r12,temp2) DATA_PA_TO_VA(r13,temp3) ;; @@ -1067,6 +1062,10 @@ mov cr.itir=r18 mov cr.ifa=r13 mov r20=IA64_TR_CURRENT_STACK + + movl r17=FPSR_DEFAULT + ;; + mov.m ar.fpsr=r17 // set ar.fpsr to kernel default value ;; itr.d dtr[r20]=r21 ;;
diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c index 8db6e0c..a45009d 100644 --- a/arch/ia64/kernel/mca_drv.c +++ b/arch/ia64/kernel/mca_drv.c
@@ -79,14 +79,30 @@ fatal_mca(const char *fmt, ...) { va_list args; + char buf[256]; va_start(args, fmt); - vprintk(fmt, args); + vsnprintf(buf, sizeof(buf), fmt, args); va_end(args); + ia64_mca_printk(KERN_ALERT "MCA: %s\n", buf); return MCA_NOT_RECOVERED; } +static int +mca_recovered(const char *fmt, ...) +{ + va_list args; + char buf[256]; + + va_start(args, fmt); + vsnprintf(buf, sizeof(buf), fmt, args); + va_end(args); + ia64_mca_printk(KERN_INFO "MCA: %s\n", buf); + + return MCA_RECOVERED; +} + /** * mca_page_isolate - isolate a poisoned page in order not to use it later * @paddr: poisoned memory location @@ -140,6 +156,7 @@ void mca_handler_bh(unsigned long paddr, void *iip, unsigned long ipsr) { + ia64_mlogbuf_dump(); printk(KERN_ERR "OS_MCA: process [cpu %d, pid: %d, uid: %d, " "iip: %p, psr: 0x%lx,paddr: 0x%lx](%s) encounters MCA.\n", raw_smp_processor_id(), current->pid, current->uid, @@ -440,7 +457,7 @@ /* Is target address valid? */ if (!pbci->tv) - return fatal_mca(KERN_ALERT "MCA: target address not valid\n"); + return fatal_mca("target address not valid"); /* * cpu read or memory-mapped io read @@ -458,7 +475,7 @@ /* Is minstate valid? */ if (!peidx_bottom(peidx) || !(peidx_bottom(peidx)->valid.minstate)) - return fatal_mca(KERN_ALERT "MCA: minstate not valid\n"); + return fatal_mca("minstate not valid"); psr1 =(struct ia64_psr *)&(peidx_minstate_area(peidx)->pmsa_ipsr); psr2 =(struct ia64_psr *)&(peidx_minstate_area(peidx)->pmsa_xpsr); @@ -492,13 +509,14 @@ psr2->bn = 1; psr2->i = 0; - return MCA_RECOVERED; + return mca_recovered("user memory corruption. " + "kill affected process - recovered."); } } - return fatal_mca(KERN_ALERT "MCA: kernel context not recovered," - " iip 0x%lx\n", pmsa->pmsa_iip); + return fatal_mca("kernel context not recovered, iip 0x%lx\n", + pmsa->pmsa_iip); } /** @@ -584,13 +602,13 @@ * The machine check is corrected. */ if (psp->cm == 1) - return MCA_RECOVERED; + return mca_recovered("machine check is already corrected."); /* * The error was not contained. Software must be reset. */ if (psp->us || psp->ci == 0) - return fatal_mca(KERN_ALERT "MCA: error not contained\n"); + return fatal_mca("error not contained"); /* * The cache check and bus check bits have four possible states @@ -601,22 +619,22 @@ * 1 1 Memory error, attempt recovery */ if (psp->bc == 0 || pbci == NULL) - return fatal_mca(KERN_ALERT "MCA: No bus check\n"); + return fatal_mca("No bus check"); /* * Sorry, we cannot handle so many. */ if (peidx_bus_check_num(peidx) > 1) - return fatal_mca(KERN_ALERT "MCA: Too many bus checks\n"); + return fatal_mca("Too many bus checks"); /* * Well, here is only one bus error. */ if (pbci->ib) - return fatal_mca(KERN_ALERT "MCA: Internal Bus error\n"); + return fatal_mca("Internal Bus error"); if (pbci->cc) - return fatal_mca(KERN_ALERT "MCA: Cache-cache error\n"); + return fatal_mca("Cache-cache error"); if (pbci->eb && pbci->bsi > 0) - return fatal_mca(KERN_ALERT "MCA: External bus check fatal status\n"); + return fatal_mca("External bus check fatal status"); /* * This is a local MCA and estimated as recoverble external bus error. @@ -628,7 +646,7 @@ /* * On account of strange SAL error record, we cannot recover. */ - return fatal_mca(KERN_ALERT "MCA: Strange SAL record\n"); + return fatal_mca("Strange SAL record"); } /** @@ -657,10 +675,10 @@ /* Now, OS can recover when there is one processor error section */ if (n_proc_err > 1) - return fatal_mca(KERN_ALERT "MCA: Too Many Errors\n"); + return fatal_mca("Too Many Errors"); else if (n_proc_err == 0) - /* Weird SAL record ... We need not to recover */ - return fatal_mca(KERN_ALERT "MCA: Weird SAL record\n"); + /* Weird SAL record ... We can't do anything */ + return fatal_mca("Weird SAL record"); /* Make index of processor error section */ mca_make_peidx((sal_log_processor_info_t*) @@ -671,7 +689,7 @@ /* Check whether MCA is global or not */ if (is_mca_global(&peidx, &pbci, sos)) - return fatal_mca(KERN_ALERT "MCA: global MCA\n"); + return fatal_mca("global MCA"); /* Try to recover a processor error */ return recover_from_processor_error(platform_err, &slidx, &peidx,
diff --git a/arch/ia64/kernel/mca_drv.h b/arch/ia64/kernel/mca_drv.h index 31a2e52..c85e943 100644 --- a/arch/ia64/kernel/mca_drv.h +++ b/arch/ia64/kernel/mca_drv.h
@@ -118,3 +118,7 @@ extern const struct mca_table_entry *search_mca_tables (unsigned long addr); extern int mca_recover_range(unsigned long); +extern void ia64_mca_printk(const char * fmt, ...) + __attribute__ ((format (printf, 1, 2))); +extern void ia64_mlogbuf_dump(void); +
diff --git a/arch/ia64/kernel/numa.c b/arch/ia64/kernel/numa.c index 1cc360c..2034063 100644 --- a/arch/ia64/kernel/numa.c +++ b/arch/ia64/kernel/numa.c
@@ -29,6 +29,36 @@ cpumask_t node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned; +void __cpuinit map_cpu_to_node(int cpu, int nid) +{ + int oldnid; + if (nid < 0) { /* just initialize by zero */ + cpu_to_node_map[cpu] = 0; + return; + } + /* sanity check first */ + oldnid = cpu_to_node_map[cpu]; + if (cpu_isset(cpu, node_to_cpu_mask[oldnid])) { + return; /* nothing to do */ + } + /* we don't have cpu-driven node hot add yet... + In usual case, node is created from SRAT at boot time. */ + if (!node_online(nid)) + nid = first_online_node; + cpu_to_node_map[cpu] = nid; + cpu_set(cpu, node_to_cpu_mask[nid]); + return; +} + +void __cpuinit unmap_cpu_from_node(int cpu, int nid) +{ + WARN_ON(!cpu_isset(cpu, node_to_cpu_mask[nid])); + WARN_ON(cpu_to_node_map[cpu] != nid); + cpu_to_node_map[cpu] = 0; + cpu_clear(cpu, node_to_cpu_mask[nid]); +} + + /** * build_cpu_to_node_map - setup cpu to node and node to cpumask arrays * @@ -49,8 +79,6 @@ node = node_cpuid[i].nid; break; } - cpu_to_node_map[cpu] = (node >= 0) ? node : 0; - if (node >= 0) - cpu_set(cpu, node_to_cpu_mask[node]); + map_cpu_to_node(cpu, node); } }
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 84a7e52..281004f 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c
@@ -34,6 +34,7 @@ #include <linux/file.h> #include <linux/poll.h> #include <linux/vfs.h> +#include <linux/smp.h> #include <linux/pagemap.h> #include <linux/mount.h> #include <linux/bitops.h> @@ -62,6 +63,9 @@ #define PFM_INVALID_ACTIVATION (~0UL) +#define PFM_NUM_PMC_REGS 64 /* PMC save area for ctxsw */ +#define PFM_NUM_PMD_REGS 64 /* PMD save area for ctxsw */ + /* * depth of message queue */ @@ -296,14 +300,17 @@ unsigned long ctx_reload_pmcs[4]; /* bitmask of force reload PMC on ctxsw in */ unsigned long ctx_used_monitors[4]; /* bitmask of monitor PMC being used */ - unsigned long ctx_pmcs[IA64_NUM_PMC_REGS]; /* saved copies of PMC values */ + unsigned long ctx_pmcs[PFM_NUM_PMC_REGS]; /* saved copies of PMC values */ unsigned int ctx_used_ibrs[1]; /* bitmask of used IBR (speedup ctxsw in) */ unsigned int ctx_used_dbrs[1]; /* bitmask of used DBR (speedup ctxsw in) */ unsigned long ctx_dbrs[IA64_NUM_DBG_REGS]; /* DBR values (cache) when not loaded */ unsigned long ctx_ibrs[IA64_NUM_DBG_REGS]; /* IBR values (cache) when not loaded */ - pfm_counter_t ctx_pmds[IA64_NUM_PMD_REGS]; /* software state for PMDS */ + pfm_counter_t ctx_pmds[PFM_NUM_PMD_REGS]; /* software state for PMDS */ + + unsigned long th_pmcs[PFM_NUM_PMC_REGS]; /* PMC thread save state */ + unsigned long th_pmds[PFM_NUM_PMD_REGS]; /* PMD thread save state */ u64 ctx_saved_psr_up; /* only contains psr.up value */ @@ -867,7 +874,6 @@ pfm_mask_monitoring(struct task_struct *task) { pfm_context_t *ctx = PFM_GET_CTX(task); - struct thread_struct *th = &task->thread; unsigned long mask, val, ovfl_mask; int i; @@ -888,7 +894,7 @@ * So in both cases, the live register contains the owner's * state. We can ONLY touch the PMU registers and NOT the PSR. * - * As a consequence to this call, the thread->pmds[] array + * As a consequence to this call, the ctx->th_pmds[] array * contains stale information which must be ignored * when context is reloaded AND monitoring is active (see * pfm_restart). @@ -923,9 +929,9 @@ mask = ctx->ctx_used_monitors[0] >> PMU_FIRST_COUNTER; for(i= PMU_FIRST_COUNTER; mask; i++, mask>>=1) { if ((mask & 0x1) == 0UL) continue; - ia64_set_pmc(i, th->pmcs[i] & ~0xfUL); - th->pmcs[i] &= ~0xfUL; - DPRINT_ovfl(("pmc[%d]=0x%lx\n", i, th->pmcs[i])); + ia64_set_pmc(i, ctx->th_pmcs[i] & ~0xfUL); + ctx->th_pmcs[i] &= ~0xfUL; + DPRINT_ovfl(("pmc[%d]=0x%lx\n", i, ctx->th_pmcs[i])); } /* * make all of this visible @@ -942,7 +948,6 @@ pfm_restore_monitoring(struct task_struct *task) { pfm_context_t *ctx = PFM_GET_CTX(task); - struct thread_struct *th = &task->thread; unsigned long mask, ovfl_mask; unsigned long psr, val; int i, is_system; @@ -1008,9 +1013,9 @@ mask = ctx->ctx_used_monitors[0] >> PMU_FIRST_COUNTER; for(i= PMU_FIRST_COUNTER; mask; i++, mask>>=1) { if ((mask & 0x1) == 0UL) continue; - th->pmcs[i] = ctx->ctx_pmcs[i]; - ia64_set_pmc(i, th->pmcs[i]); - DPRINT(("[%d] pmc[%d]=0x%lx\n", task->pid, i, th->pmcs[i])); + ctx->th_pmcs[i] = ctx->ctx_pmcs[i]; + ia64_set_pmc(i, ctx->th_pmcs[i]); + DPRINT(("[%d] pmc[%d]=0x%lx\n", task->pid, i, ctx->th_pmcs[i])); } ia64_srlz_d(); @@ -1069,7 +1074,6 @@ static inline void pfm_copy_pmds(struct task_struct *task, pfm_context_t *ctx) { - struct thread_struct *thread = &task->thread; unsigned long ovfl_val = pmu_conf->ovfl_val; unsigned long mask = ctx->ctx_all_pmds[0]; unsigned long val; @@ -1091,11 +1095,11 @@ ctx->ctx_pmds[i].val = val & ~ovfl_val; val &= ovfl_val; } - thread->pmds[i] = val; + ctx->th_pmds[i] = val; DPRINT(("pmd[%d]=0x%lx soft_val=0x%lx\n", i, - thread->pmds[i], + ctx->th_pmds[i], ctx->ctx_pmds[i].val)); } } @@ -1106,7 +1110,6 @@ static inline void pfm_copy_pmcs(struct task_struct *task, pfm_context_t *ctx) { - struct thread_struct *thread = &task->thread; unsigned long mask = ctx->ctx_all_pmcs[0]; int i; @@ -1114,8 +1117,8 @@ for (i=0; mask; i++, mask>>=1) { /* masking 0 with ovfl_val yields 0 */ - thread->pmcs[i] = ctx->ctx_pmcs[i]; - DPRINT(("pmc[%d]=0x%lx\n", i, thread->pmcs[i])); + ctx->th_pmcs[i] = ctx->ctx_pmcs[i]; + DPRINT(("pmc[%d]=0x%lx\n", i, ctx->th_pmcs[i])); } } @@ -2859,7 +2862,6 @@ static int pfm_write_pmcs(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) { - struct thread_struct *thread = NULL; struct task_struct *task; pfarg_reg_t *req = (pfarg_reg_t *)arg; unsigned long value, pmc_pm; @@ -2880,7 +2882,6 @@ if (state == PFM_CTX_ZOMBIE) return -EINVAL; if (is_loaded) { - thread = &task->thread; /* * In system wide and when the context is loaded, access can only happen * when the caller is running on the CPU being monitored by the session. @@ -3035,7 +3036,7 @@ * * The value in ctx_pmcs[] can only be changed in pfm_write_pmcs(). * - * The value in thread->pmcs[] may be modified on overflow, i.e., when + * The value in th_pmcs[] may be modified on overflow, i.e., when * monitoring needs to be stopped. */ if (is_monitor) CTX_USED_MONITOR(ctx, 1UL << cnum); @@ -3049,7 +3050,7 @@ /* * write thread state */ - if (is_system == 0) thread->pmcs[cnum] = value; + if (is_system == 0) ctx->th_pmcs[cnum] = value; /* * write hardware register if we can @@ -3101,7 +3102,6 @@ static int pfm_write_pmds(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) { - struct thread_struct *thread = NULL; struct task_struct *task; pfarg_reg_t *req = (pfarg_reg_t *)arg; unsigned long value, hw_value, ovfl_mask; @@ -3125,7 +3125,6 @@ * the owner of the local PMU. */ if (likely(is_loaded)) { - thread = &task->thread; /* * In system wide and when the context is loaded, access can only happen * when the caller is running on the CPU being monitored by the session. @@ -3233,7 +3232,7 @@ /* * write thread state */ - if (is_system == 0) thread->pmds[cnum] = hw_value; + if (is_system == 0) ctx->th_pmds[cnum] = hw_value; /* * write hardware register if we can @@ -3299,7 +3298,6 @@ static int pfm_read_pmds(pfm_context_t *ctx, void *arg, int count, struct pt_regs *regs) { - struct thread_struct *thread = NULL; struct task_struct *task; unsigned long val = 0UL, lval, ovfl_mask, sval; pfarg_reg_t *req = (pfarg_reg_t *)arg; @@ -3323,7 +3321,6 @@ if (state == PFM_CTX_ZOMBIE) return -EINVAL; if (likely(is_loaded)) { - thread = &task->thread; /* * In system wide and when the context is loaded, access can only happen * when the caller is running on the CPU being monitored by the session. @@ -3385,7 +3382,7 @@ * if context is zombie, then task does not exist anymore. * In this case, we use the full value saved in the context (pfm_flush_regs()). */ - val = is_loaded ? thread->pmds[cnum] : 0UL; + val = is_loaded ? ctx->th_pmds[cnum] : 0UL; } rd_func = pmu_conf->pmd_desc[cnum].read_check; @@ -4354,8 +4351,8 @@ pfm_copy_pmds(task, ctx); pfm_copy_pmcs(task, ctx); - pmcs_source = thread->pmcs; - pmds_source = thread->pmds; + pmcs_source = ctx->th_pmcs; + pmds_source = ctx->th_pmds; /* * always the case for system-wide @@ -5864,14 +5861,12 @@ pfm_save_regs(struct task_struct *task) { pfm_context_t *ctx; - struct thread_struct *t; unsigned long flags; u64 psr; ctx = PFM_GET_CTX(task); if (ctx == NULL) return; - t = &task->thread; /* * we always come here with interrupts ALREADY disabled by @@ -5929,19 +5924,19 @@ * guarantee we will be schedule at that same * CPU again. */ - pfm_save_pmds(t->pmds, ctx->ctx_used_pmds[0]); + pfm_save_pmds(ctx->th_pmds, ctx->ctx_used_pmds[0]); /* * save pmc0 ia64_srlz_d() done in pfm_save_pmds() * we will need it on the restore path to check * for pending overflow. */ - t->pmcs[0] = ia64_get_pmc(0); + ctx->th_pmcs[0] = ia64_get_pmc(0); /* * unfreeze PMU if had pending overflows */ - if (t->pmcs[0] & ~0x1UL) pfm_unfreeze_pmu(); + if (ctx->th_pmcs[0] & ~0x1UL) pfm_unfreeze_pmu(); /* * finally, allow context access. @@ -5986,7 +5981,6 @@ pfm_lazy_save_regs (struct task_struct *task) { pfm_context_t *ctx; - struct thread_struct *t; unsigned long flags; { u64 psr = pfm_get_psr(); @@ -5994,7 +5988,6 @@ } ctx = PFM_GET_CTX(task); - t = &task->thread; /* * we need to mask PMU overflow here to @@ -6019,19 +6012,19 @@ /* * save all the pmds we use */ - pfm_save_pmds(t->pmds, ctx->ctx_used_pmds[0]); + pfm_save_pmds(ctx->th_pmds, ctx->ctx_used_pmds[0]); /* * save pmc0 ia64_srlz_d() done in pfm_save_pmds() * it is needed to check for pended overflow * on the restore path */ - t->pmcs[0] = ia64_get_pmc(0); + ctx->th_pmcs[0] = ia64_get_pmc(0); /* * unfreeze PMU if had pending overflows */ - if (t->pmcs[0] & ~0x1UL) pfm_unfreeze_pmu(); + if (ctx->th_pmcs[0] & ~0x1UL) pfm_unfreeze_pmu(); /* * now get can unmask PMU interrupts, they will @@ -6050,7 +6043,6 @@ pfm_load_regs (struct task_struct *task) { pfm_context_t *ctx; - struct thread_struct *t; unsigned long pmc_mask = 0UL, pmd_mask = 0UL; unsigned long flags; u64 psr, psr_up; @@ -6061,11 +6053,10 @@ BUG_ON(GET_PMU_OWNER()); - t = &task->thread; /* * possible on unload */ - if (unlikely((t->flags & IA64_THREAD_PM_VALID) == 0)) return; + if (unlikely((task->thread.flags & IA64_THREAD_PM_VALID) == 0)) return; /* * we always come here with interrupts ALREADY disabled by @@ -6147,21 +6138,21 @@ * * XXX: optimize here */ - if (pmd_mask) pfm_restore_pmds(t->pmds, pmd_mask); - if (pmc_mask) pfm_restore_pmcs(t->pmcs, pmc_mask); + if (pmd_mask) pfm_restore_pmds(ctx->th_pmds, pmd_mask); + if (pmc_mask) pfm_restore_pmcs(ctx->th_pmcs, pmc_mask); /* * check for pending overflow at the time the state * was saved. */ - if (unlikely(PMC0_HAS_OVFL(t->pmcs[0]))) { + if (unlikely(PMC0_HAS_OVFL(ctx->th_pmcs[0]))) { /* * reload pmc0 with the overflow information * On McKinley PMU, this will trigger a PMU interrupt */ - ia64_set_pmc(0, t->pmcs[0]); + ia64_set_pmc(0, ctx->th_pmcs[0]); ia64_srlz_d(); - t->pmcs[0] = 0UL; + ctx->th_pmcs[0] = 0UL; /* * will replay the PMU interrupt @@ -6214,7 +6205,6 @@ void pfm_load_regs (struct task_struct *task) { - struct thread_struct *t; pfm_context_t *ctx; struct task_struct *owner; unsigned long pmd_mask, pmc_mask; @@ -6223,7 +6213,6 @@ owner = GET_PMU_OWNER(); ctx = PFM_GET_CTX(task); - t = &task->thread; psr = pfm_get_psr(); BUG_ON(psr & (IA64_PSR_UP|IA64_PSR_PP)); @@ -6286,22 +6275,22 @@ */ pmc_mask = ctx->ctx_all_pmcs[0]; - pfm_restore_pmds(t->pmds, pmd_mask); - pfm_restore_pmcs(t->pmcs, pmc_mask); + pfm_restore_pmds(ctx->th_pmds, pmd_mask); + pfm_restore_pmcs(ctx->th_pmcs, pmc_mask); /* * check for pending overflow at the time the state * was saved. */ - if (unlikely(PMC0_HAS_OVFL(t->pmcs[0]))) { + if (unlikely(PMC0_HAS_OVFL(ctx->th_pmcs[0]))) { /* * reload pmc0 with the overflow information * On McKinley PMU, this will trigger a PMU interrupt */ - ia64_set_pmc(0, t->pmcs[0]); + ia64_set_pmc(0, ctx->th_pmcs[0]); ia64_srlz_d(); - t->pmcs[0] = 0UL; + ctx->th_pmcs[0] = 0UL; /* * will replay the PMU interrupt @@ -6376,11 +6365,11 @@ */ pfm_unfreeze_pmu(); } else { - pmc0 = task->thread.pmcs[0]; + pmc0 = ctx->th_pmcs[0]; /* * clear whatever overflow status bits there were */ - task->thread.pmcs[0] = 0; + ctx->th_pmcs[0] = 0; } ovfl_val = pmu_conf->ovfl_val; /* @@ -6401,7 +6390,7 @@ /* * can access PMU always true in system wide mode */ - val = pmd_val = can_access_pmu ? ia64_get_pmd(i) : task->thread.pmds[i]; + val = pmd_val = can_access_pmu ? ia64_get_pmd(i) : ctx->th_pmds[i]; if (PMD_IS_COUNTING(i)) { DPRINT(("[%d] pmd[%d] ctx_pmd=0x%lx hw_pmd=0x%lx\n", @@ -6433,7 +6422,7 @@ DPRINT(("[%d] ctx_pmd[%d]=0x%lx pmd_val=0x%lx\n", task->pid, i, val, pmd_val)); - if (is_self) task->thread.pmds[i] = pmd_val; + if (is_self) ctx->th_pmds[i] = pmd_val; ctx->ctx_pmds[i].val = val; } @@ -6677,7 +6666,7 @@ ffz(pmu_conf->ovfl_val)); /* sanity check */ - if (pmu_conf->num_pmds >= IA64_NUM_PMD_REGS || pmu_conf->num_pmcs >= IA64_NUM_PMC_REGS) { + if (pmu_conf->num_pmds >= PFM_NUM_PMD_REGS || pmu_conf->num_pmcs >= PFM_NUM_PMC_REGS) { printk(KERN_ERR "perfmon: not enough pmc/pmd, perfmon disabled\n"); pmu_conf = NULL; return -1; @@ -6752,7 +6741,6 @@ dump_pmu_state(const char *from) { struct task_struct *task; - struct thread_struct *t; struct pt_regs *regs; pfm_context_t *ctx; unsigned long psr, dcr, info, flags; @@ -6797,16 +6785,14 @@ ia64_psr(regs)->up = 0; ia64_psr(regs)->pp = 0; - t = ¤t->thread; - for (i=1; PMC_IS_LAST(i) == 0; i++) { if (PMC_IS_IMPL(i) == 0) continue; - printk("->CPU%d pmc[%d]=0x%lx thread_pmc[%d]=0x%lx\n", this_cpu, i, ia64_get_pmc(i), i, t->pmcs[i]); + printk("->CPU%d pmc[%d]=0x%lx thread_pmc[%d]=0x%lx\n", this_cpu, i, ia64_get_pmc(i), i, ctx->th_pmcs[i]); } for (i=1; PMD_IS_LAST(i) == 0; i++) { if (PMD_IS_IMPL(i) == 0) continue; - printk("->CPU%d pmd[%d]=0x%lx thread_pmd[%d]=0x%lx\n", this_cpu, i, ia64_get_pmd(i), i, t->pmds[i]); + printk("->CPU%d pmd[%d]=0x%lx thread_pmd[%d]=0x%lx\n", this_cpu, i, ia64_get_pmd(i), i, ctx->th_pmds[i]); } if (ctx) {
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c index 9065f0f..e63b8ca 100644 --- a/arch/ia64/kernel/salinfo.c +++ b/arch/ia64/kernel/salinfo.c
@@ -266,6 +266,7 @@ /* Check for outstanding MCA/INIT records every minute (arbitrary) */ #define SALINFO_TIMER_DELAY (60*HZ) static struct timer_list salinfo_timer; +extern void ia64_mlogbuf_dump(void); static void salinfo_timeout_check(struct salinfo_data *data) @@ -283,6 +284,7 @@ static void salinfo_timeout (unsigned long arg) { + ia64_mlogbuf_dump(); salinfo_timeout_check(salinfo_data + SAL_INFO_TYPE_MCA); salinfo_timeout_check(salinfo_data + SAL_INFO_TYPE_INIT); salinfo_timer.expires = jiffies + SALINFO_TIMER_DELAY; @@ -332,6 +334,8 @@ if (cpu == -1) goto retry; + ia64_mlogbuf_dump(); + /* for next read, start checking at next CPU */ data->cpu_check = cpu; if (++data->cpu_check == NR_CPUS)
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 7ad0d9c..84f93c0 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c
@@ -509,7 +509,7 @@ { 1UL << 1, "spontaneous deferral"}, { 1UL << 2, "16-byte atomic ops" } }; - char family[32], features[128], *cp, sep; + char features[128], *cp, sep; struct cpuinfo_ia64 *c = v; unsigned long mask; unsigned long proc_freq; @@ -517,12 +517,6 @@ mask = c->features; - switch (c->family) { - case 0x07: memcpy(family, "Itanium", 8); break; - case 0x1f: memcpy(family, "Itanium 2", 10); break; - default: sprintf(family, "%u", c->family); break; - } - /* build the feature string: */ memcpy(features, " standard", 10); cp = features; @@ -553,8 +547,9 @@ "processor : %d\n" "vendor : %s\n" "arch : IA-64\n" - "family : %s\n" + "family : %u\n" "model : %u\n" + "model name : %s\n" "revision : %u\n" "archrev : %u\n" "features :%s\n" /* don't change this---it _is_ right! */ @@ -563,7 +558,8 @@ "cpu MHz : %lu.%06lu\n" "itc MHz : %lu.%06lu\n" "BogoMIPS : %lu.%02lu\n", - cpunum, c->vendor, family, c->model, c->revision, c->archrev, + cpunum, c->vendor, c->family, c->model, + c->model_name, c->revision, c->archrev, features, c->ppn, c->number, proc_freq / 1000, proc_freq % 1000, c->itc_freq / 1000000, c->itc_freq % 1000000, @@ -611,6 +607,31 @@ .show = show_cpuinfo }; +static char brandname[128]; + +static char * __cpuinit +get_model_name(__u8 family, __u8 model) +{ + char brand[128]; + + if (ia64_pal_get_brand_info(brand)) { + if (family == 0x7) + memcpy(brand, "Merced", 7); + else if (family == 0x1f) switch (model) { + case 0: memcpy(brand, "McKinley", 9); break; + case 1: memcpy(brand, "Madison", 8); break; + case 2: memcpy(brand, "Madison up to 9M cache", 23); break; + } else + memcpy(brand, "Unknown", 8); + } + if (brandname[0] == '\0') + return strcpy(brandname, brand); + else if (strcmp(brandname, brand) == 0) + return brandname; + else + return kstrdup(brand, GFP_KERNEL); +} + static void __cpuinit identify_cpu (struct cpuinfo_ia64 *c) { @@ -640,7 +661,6 @@ pal_status_t status; unsigned long impl_va_msb = 50, phys_addr_size = 44; /* Itanium defaults */ int i; - for (i = 0; i < 5; ++i) cpuid.bits[i] = ia64_get_cpuid(i); @@ -663,6 +683,7 @@ c->family = cpuid.field.family; c->archrev = cpuid.field.archrev; c->features = cpuid.field.features; + c->model_name = get_model_name(c->family, c->model); status = ia64_pal_vm_summary(&vm1, &vm2); if (status == PAL_STATUS_SUCCESS) {
diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index 6203ed4..f7d7f56 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c
@@ -879,3 +879,27 @@ c->core_id = info.log1_cid; c->thread_id = info.log1_tid; } + +/* + * returns non zero, if multi-threading is enabled + * on at least one physical package. Due to hotplug cpu + * and (maxcpus=), all threads may not necessarily be enabled + * even though the processor supports multi-threading. + */ +int is_multithreading_enabled(void) +{ + int i, j; + + for_each_present_cpu(i) { + for_each_present_cpu(j) { + if (j == i) + continue; + if ((cpu_data(j)->socket_id == cpu_data(i)->socket_id)) { + if (cpu_data(j)->core_id == cpu_data(i)->core_id) + return 1; + } + } + } + return 0; +} +EXPORT_SYMBOL_GPL(is_multithreading_enabled);
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c index f648c61..5629b45 100644 --- a/arch/ia64/kernel/topology.c +++ b/arch/ia64/kernel/topology.c
@@ -36,6 +36,7 @@ */ if (!can_cpei_retarget() && is_cpu_cpei_target(num)) sysfs_cpus[num].cpu.no_control = 1; + map_cpu_to_node(num, node_cpuid[num].nid); #endif return register_cpu(&sysfs_cpus[num].cpu, num); @@ -45,7 +46,8 @@ void arch_unregister_cpu(int num) { - return unregister_cpu(&sysfs_cpus[num].cpu); + unregister_cpu(&sysfs_cpus[num].cpu); + unmap_cpu_from_node(num, cpu_to_node(num)); } EXPORT_SYMBOL(arch_register_cpu); EXPORT_SYMBOL(arch_unregister_cpu);
diff --git a/arch/ia64/kernel/uncached.c b/arch/ia64/kernel/uncached.c index 4c73a67..c58e933 100644 --- a/arch/ia64/kernel/uncached.c +++ b/arch/ia64/kernel/uncached.c
@@ -98,7 +98,7 @@ /* attempt to allocate a granule's worth of cached memory pages */ - page = alloc_pages_node(nid, GFP_KERNEL | __GFP_ZERO, + page = alloc_pages_node(nid, GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, IA64_GRANULE_SHIFT-PAGE_SHIFT); if (!page) { mutex_unlock(&uc_pool->add_chunk_mutex);
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S index 5b0d5f6..b3b2e38 100644 --- a/arch/ia64/kernel/vmlinux.lds.S +++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -184,7 +184,9 @@ *(.data.gate) __stop_gate_section = .; } - . = ALIGN(PAGE_SIZE); /* make sure the gate page doesn't expose kernel data */ + . = ALIGN(PAGE_SIZE); /* make sure the gate page doesn't expose + * kernel data + */ .data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) { *(.data.read_mostly) } @@ -202,7 +204,9 @@ *(.data.percpu) __per_cpu_end = .; } - . = __phys_per_cpu_start + PERCPU_PAGE_SIZE; /* ensure percpu data fits into percpu page size */ + . = __phys_per_cpu_start + PERCPU_PAGE_SIZE; /* ensure percpu data fits + * into percpu page size + */ data : { } :data .data : AT(ADDR(.data) - LOAD_OFFSET)
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c index e004143..daf977f 100644 --- a/arch/ia64/mm/contig.c +++ b/arch/ia64/mm/contig.c
@@ -26,7 +26,6 @@ #include <asm/mca.h> #ifdef CONFIG_VIRTUAL_MEM_MAP -static unsigned long num_dma_physpages; static unsigned long max_gap; #endif @@ -41,10 +40,11 @@ int i, total = 0, reserved = 0; int shared = 0, cached = 0; - printk("Mem-info:\n"); + printk(KERN_INFO "Mem-info:\n"); show_free_areas(); - printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); + printk(KERN_INFO "Free swap: %6ldkB\n", + nr_swap_pages<<(PAGE_SHIFT-10)); i = max_mapnr; for (i = 0; i < max_mapnr; i++) { if (!pfn_valid(i)) { @@ -63,12 +63,12 @@ else if (page_count(mem_map + i)) shared += page_count(mem_map + i) - 1; } - printk("%d pages of RAM\n", total); - printk("%d reserved pages\n", reserved); - printk("%d pages shared\n", shared); - printk("%d pages swap cached\n", cached); - printk("%ld pages in page table cache\n", - pgtable_quicklist_total_size()); + printk(KERN_INFO "%d pages of RAM\n", total); + printk(KERN_INFO "%d reserved pages\n", reserved); + printk(KERN_INFO "%d pages shared\n", shared); + printk(KERN_INFO "%d pages swap cached\n", cached); + printk(KERN_INFO "%ld pages in page table cache\n", + pgtable_quicklist_total_size()); } /* physical address where the bootmem map is located */ @@ -218,18 +218,6 @@ return 0; } -#ifdef CONFIG_VIRTUAL_MEM_MAP -static int -count_dma_pages (u64 start, u64 end, void *arg) -{ - unsigned long *count = arg; - - if (start < MAX_DMA_ADDRESS) - *count += (min(end, MAX_DMA_ADDRESS) - start) >> PAGE_SHIFT; - return 0; -} -#endif - /* * Set up the page tables. */ @@ -238,45 +226,22 @@ paging_init (void) { unsigned long max_dma; - unsigned long zones_size[MAX_NR_ZONES]; -#ifdef CONFIG_VIRTUAL_MEM_MAP - unsigned long zholes_size[MAX_NR_ZONES]; -#endif - - /* initialize mem_map[] */ - - memset(zones_size, 0, sizeof(zones_size)); + unsigned long nid = 0; + unsigned long max_zone_pfns[MAX_NR_ZONES]; num_physpages = 0; efi_memmap_walk(count_pages, &num_physpages); max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT; + max_zone_pfns[ZONE_DMA] = max_dma; + max_zone_pfns[ZONE_NORMAL] = max_low_pfn; #ifdef CONFIG_VIRTUAL_MEM_MAP - memset(zholes_size, 0, sizeof(zholes_size)); - - num_dma_physpages = 0; - efi_memmap_walk(count_dma_pages, &num_dma_physpages); - - if (max_low_pfn < max_dma) { - zones_size[ZONE_DMA] = max_low_pfn; - zholes_size[ZONE_DMA] = max_low_pfn - num_dma_physpages; - } else { - zones_size[ZONE_DMA] = max_dma; - zholes_size[ZONE_DMA] = max_dma - num_dma_physpages; - if (num_physpages > num_dma_physpages) { - zones_size[ZONE_NORMAL] = max_low_pfn - max_dma; - zholes_size[ZONE_NORMAL] = - ((max_low_pfn - max_dma) - - (num_physpages - num_dma_physpages)); - } - } - + efi_memmap_walk(register_active_ranges, &nid); efi_memmap_walk(find_largest_hole, (u64 *)&max_gap); if (max_gap < LARGE_GAP) { vmem_map = (struct page *) 0; - free_area_init_node(0, NODE_DATA(0), zones_size, 0, - zholes_size); + free_area_init_nodes(max_zone_pfns); } else { unsigned long map_size; @@ -288,20 +253,19 @@ vmem_map = (struct page *) vmalloc_end; efi_memmap_walk(create_mem_map_page_table, NULL); - NODE_DATA(0)->node_mem_map = vmem_map; - free_area_init_node(0, NODE_DATA(0), zones_size, - 0, zholes_size); + /* + * alloc_node_mem_map makes an adjustment for mem_map + * which isn't compatible with vmem_map. + */ + NODE_DATA(0)->node_mem_map = vmem_map + + find_min_pfn_with_active_regions(); + free_area_init_nodes(max_zone_pfns); printk("Virtual mem_map starts at 0x%p\n", mem_map); } #else /* !CONFIG_VIRTUAL_MEM_MAP */ - if (max_low_pfn < max_dma) - zones_size[ZONE_DMA] = max_low_pfn; - else { - zones_size[ZONE_DMA] = max_dma; - zones_size[ZONE_NORMAL] = max_low_pfn - max_dma; - } - free_area_init(zones_size); + add_active_range(0, 0, max_low_pfn); + free_area_init_nodes(max_zone_pfns); #endif /* !CONFIG_VIRTUAL_MEM_MAP */ zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page)); }
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c index d260bff..d497b6b 100644 --- a/arch/ia64/mm/discontig.c +++ b/arch/ia64/mm/discontig.c
@@ -547,15 +547,16 @@ unsigned long total_present = 0; pg_data_t *pgdat; - printk("Mem-info:\n"); + printk(KERN_INFO "Mem-info:\n"); show_free_areas(); - printk("Free swap: %6ldkB\n", nr_swap_pages<<(PAGE_SHIFT-10)); + printk(KERN_INFO "Free swap: %6ldkB\n", + nr_swap_pages<<(PAGE_SHIFT-10)); + printk(KERN_INFO "Node memory in pages:\n"); for_each_online_pgdat(pgdat) { unsigned long present; unsigned long flags; int shared = 0, cached = 0, reserved = 0; - printk("Node ID: %d\n", pgdat->node_id); pgdat_resize_lock(pgdat, &flags); present = pgdat->node_present_pages; for(i = 0; i < pgdat->node_spanned_pages; i++) { @@ -579,18 +580,17 @@ total_reserved += reserved; total_cached += cached; total_shared += shared; - printk("\t%ld pages of RAM\n", present); - printk("\t%d reserved pages\n", reserved); - printk("\t%d pages shared\n", shared); - printk("\t%d pages swap cached\n", cached); + printk(KERN_INFO "Node %4d: RAM: %11ld, rsvd: %8d, " + "shrd: %10d, swpd: %10d\n", pgdat->node_id, + present, reserved, shared, cached); } - printk("%ld pages of RAM\n", total_present); - printk("%d reserved pages\n", total_reserved); - printk("%d pages shared\n", total_shared); - printk("%d pages swap cached\n", total_cached); - printk("Total of %ld pages in page table cache\n", - pgtable_quicklist_total_size()); - printk("%d free buffer pages\n", nr_free_buffer_pages()); + printk(KERN_INFO "%ld pages of RAM\n", total_present); + printk(KERN_INFO "%d reserved pages\n", total_reserved); + printk(KERN_INFO "%d pages shared\n", total_shared); + printk(KERN_INFO "%d pages swap cached\n", total_cached); + printk(KERN_INFO "Total of %ld pages in page table cache\n", + pgtable_quicklist_total_size()); + printk(KERN_INFO "%d free buffer pages\n", nr_free_buffer_pages()); } /** @@ -654,6 +654,7 @@ { unsigned long end = start + len; + add_active_range(node, start >> PAGE_SHIFT, end >> PAGE_SHIFT); mem_data[node].num_physpages += len >> PAGE_SHIFT; if (start <= __pa(MAX_DMA_ADDRESS)) mem_data[node].num_dma_physpages += @@ -678,10 +679,10 @@ void __init paging_init(void) { unsigned long max_dma; - unsigned long zones_size[MAX_NR_ZONES]; - unsigned long zholes_size[MAX_NR_ZONES]; unsigned long pfn_offset = 0; + unsigned long max_pfn = 0; int node; + unsigned long max_zone_pfns[MAX_NR_ZONES]; max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT; @@ -698,47 +699,20 @@ #endif for_each_online_node(node) { - memset(zones_size, 0, sizeof(zones_size)); - memset(zholes_size, 0, sizeof(zholes_size)); - num_physpages += mem_data[node].num_physpages; - - if (mem_data[node].min_pfn >= max_dma) { - /* All of this node's memory is above ZONE_DMA */ - zones_size[ZONE_NORMAL] = mem_data[node].max_pfn - - mem_data[node].min_pfn; - zholes_size[ZONE_NORMAL] = mem_data[node].max_pfn - - mem_data[node].min_pfn - - mem_data[node].num_physpages; - } else if (mem_data[node].max_pfn < max_dma) { - /* All of this node's memory is in ZONE_DMA */ - zones_size[ZONE_DMA] = mem_data[node].max_pfn - - mem_data[node].min_pfn; - zholes_size[ZONE_DMA] = mem_data[node].max_pfn - - mem_data[node].min_pfn - - mem_data[node].num_dma_physpages; - } else { - /* This node has memory in both zones */ - zones_size[ZONE_DMA] = max_dma - - mem_data[node].min_pfn; - zholes_size[ZONE_DMA] = zones_size[ZONE_DMA] - - mem_data[node].num_dma_physpages; - zones_size[ZONE_NORMAL] = mem_data[node].max_pfn - - max_dma; - zholes_size[ZONE_NORMAL] = zones_size[ZONE_NORMAL] - - (mem_data[node].num_physpages - - mem_data[node].num_dma_physpages); - } - pfn_offset = mem_data[node].min_pfn; #ifdef CONFIG_VIRTUAL_MEM_MAP NODE_DATA(node)->node_mem_map = vmem_map + pfn_offset; #endif - free_area_init_node(node, NODE_DATA(node), zones_size, - pfn_offset, zholes_size); + if (mem_data[node].max_pfn > max_pfn) + max_pfn = mem_data[node].max_pfn; } + max_zone_pfns[ZONE_DMA] = max_dma; + max_zone_pfns[ZONE_NORMAL] = max_pfn; + free_area_init_nodes(max_zone_pfns); + zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page)); }
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 30617cc..ff87a5c 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c
@@ -593,6 +593,18 @@ last_end = end; return 0; } + +int __init +register_active_ranges(u64 start, u64 end, void *nid) +{ + BUG_ON(nid == NULL); + BUG_ON(*(unsigned long *)nid >= MAX_NUMNODES); + + add_active_range(*(unsigned long *)nid, + __pa(start) >> PAGE_SHIFT, + __pa(end) >> PAGE_SHIFT); + return 0; +} #endif /* CONFIG_VIRTUAL_MEM_MAP */ static int __init
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 60b45e7..15c7c67 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c
@@ -562,7 +562,8 @@ void pcibios_disable_device (struct pci_dev *dev) { - acpi_pci_irq_disable(dev); + if (dev->is_enabled) + acpi_pci_irq_disable(dev); } void
diff --git a/arch/ia64/sn/kernel/bte.c b/arch/ia64/sn/kernel/bte.c index 27dee45..7f73ad4 100644 --- a/arch/ia64/sn/kernel/bte.c +++ b/arch/ia64/sn/kernel/bte.c
@@ -277,8 +277,7 @@ } /* temporary buffer used during unaligned transfers */ - bteBlock_unaligned = kmalloc(len + 3 * L1_CACHE_BYTES, - GFP_KERNEL | GFP_DMA); + bteBlock_unaligned = kmalloc(len + 3 * L1_CACHE_BYTES, GFP_KERNEL); if (bteBlock_unaligned == NULL) { return BTEFAIL_NOTAVAIL; }
diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c index 9a8a293..b632b9c 100644 --- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c +++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c
@@ -32,9 +32,10 @@ #include <linux/cpumask.h> #include <linux/smp_lock.h> #include <linux/nodemask.h> +#include <linux/smp.h> + #include <asm/processor.h> #include <asm/topology.h> -#include <asm/smp.h> #include <asm/semaphore.h> #include <asm/uaccess.h> #include <asm/sal.h>
diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c index b71348f..bbd97c8 100644 --- a/arch/m32r/mm/init.c +++ b/arch/m32r/mm/init.c
@@ -100,7 +100,7 @@ #ifndef CONFIG_DISCONTIGMEM unsigned long __init zone_sizes_init(void) { - unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0}; + unsigned long zones_size[MAX_NR_ZONES] = {0, }; unsigned long max_dma; unsigned long low; unsigned long start_pfn;
diff --git a/arch/m68knommu/mm/init.c b/arch/m68knommu/mm/init.c index e4c233e..06e538d 100644 --- a/arch/m68knommu/mm/init.c +++ b/arch/m68knommu/mm/init.c
@@ -136,7 +136,7 @@ #endif { - unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0}; + unsigned long zones_size[MAX_NR_ZONES] = {0, }; zones_size[ZONE_DMA] = 0 >> PAGE_SHIFT; zones_size[ZONE_NORMAL] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT;
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 330f6ab..30750c5 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig
@@ -126,7 +126,7 @@ select IRQ_CPU select IRQ_CPU_RM7K select IRQ_CPU_RM9K - select SERIAL_RM9000 + select MIPS_RM9122 select SYS_HAS_CPU_RM9000 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL @@ -203,26 +203,6 @@ <http://www.marvell.com/>. Say Y here if you wish to build a kernel for this platform. -config MIPS_EV96100 - bool "Galileo EV96100 Evaluation board (EXPERIMENTAL)" - depends on EXPERIMENTAL - select DMA_NONCOHERENT - select HW_HAS_PCI - select IRQ_CPU - select MIPS_GT96100 - select RM7000_CPU_SCACHE - select SWAP_IO_SPACE - select SYS_HAS_CPU_R5000 - select SYS_HAS_CPU_RM7000 - select SYS_SUPPORTS_32BIT_KERNEL - select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL - select SYS_SUPPORTS_BIG_ENDIAN - help - This is an evaluation board based on the Galileo GT-96100 LAN/WAN - communications controllers containing a MIPS R5000 compatible core - running at 83MHz. Their website is <http://www.marvell.com/>. Say Y - here if you wish to build a kernel for this platform. - config MIPS_IVR bool "Globespan IVR board" select DMA_NONCOHERENT @@ -974,6 +954,12 @@ bool select HAS_TXX9_SERIAL +config MIPS_RM9122 + bool + select SERIAL_RM9000 + select GPI_RM9000 + select WDT_RM9000 + config PCI_MARVELL bool @@ -1024,6 +1010,15 @@ depends on MARKEINS default y +config SERIAL_RM9000 + bool + +config GPI_RM9000 + bool + +config WDT_RM9000 + bool + # # Unfortunately not all GT64120 systems run the chip at the same clock. # As the user for the clock rate and try to minimize the available options. @@ -1054,10 +1049,6 @@ depends on MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000 default n -config MIPS_GT96100 - bool - select MIPS_GT64120 - config IT8172_CIR bool depends on MIPS_ITE8172 || MIPS_IVR @@ -1527,6 +1518,7 @@ select CPU_MIPSR2_SRS select MIPS_MT select SMP + select SYS_SUPPORTS_SMP help This is a kernel model which is known a SMTC or lately has been marketesed into SMVP. @@ -1538,6 +1530,7 @@ select CPU_MIPSR2_SRS select MIPS_MT select SMP + select SYS_SUPPORTS_SMP help This is a kernel model which is also known a VSMP or lately has been marketesed into SMVP. @@ -1649,9 +1642,7 @@ default y config IRQ_PER_CPU - depends on SMP bool - default y # # - Highmem only makes sense for the 32-bit kernel. @@ -1719,6 +1710,7 @@ config SMP bool "Multi-Processing support" depends on SYS_SUPPORTS_SMP + select IRQ_PER_CPU help This enables support for systems with more than one CPU. If you have a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/mips/Makefile b/arch/mips/Makefile index d333ce4..e521826 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile
@@ -280,13 +280,6 @@ load-$(CONFIG_MIPS_EV64120) += 0xffffffff80100000 # -# Galileo EV96100 Board -# -core-$(CONFIG_MIPS_EV96100) += arch/mips/galileo-boards/ev96100/ -cflags-$(CONFIG_MIPS_EV96100) += -Iinclude/asm-mips/mach-ev96100 -load-$(CONFIG_MIPS_EV96100) += 0xffffffff80100000 - -# # Wind River PPMC Board (4KC + GT64120) # core-$(CONFIG_WR_PPMC) += arch/mips/gt64120/wrppmc/ @@ -330,6 +323,7 @@ # MIPS SEAD board # core-$(CONFIG_MIPS_SEAD) += arch/mips/mips-boards/sead/ +cflags-$(CONFIG_MIPS_SEAD) += -Iinclude/asm-mips/mach-mips load-$(CONFIG_MIPS_SEAD) += 0xffffffff80100000 #
diff --git a/arch/mips/au1000/common/dbdma.c b/arch/mips/au1000/common/dbdma.c index 98244d5..c4fae8f 100644 --- a/arch/mips/au1000/common/dbdma.c +++ b/arch/mips/au1000/common/dbdma.c
@@ -230,7 +230,7 @@ */ u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid, - void (*callback)(int, void *, struct pt_regs *), void *callparam) + void (*callback)(int, void *), void *callparam) { unsigned long flags; u32 used, chan, rv; @@ -248,8 +248,10 @@ au1xxx_dbdma_init(); dbdma_initialized = 1; - if ((stp = find_dbdev_id(srcid)) == NULL) return 0; - if ((dtp = find_dbdev_id(destid)) == NULL) return 0; + if ((stp = find_dbdev_id(srcid)) == NULL) + return 0; + if ((dtp = find_dbdev_id(destid)) == NULL) + return 0; used = 0; rv = 0; @@ -869,7 +871,7 @@ au_sync(); if (ctp->chan_callback) - (ctp->chan_callback)(irq, ctp->chan_callparam, regs); + (ctp->chan_callback)(irq, ctp->chan_callparam); ctp->cur_ptr = phys_to_virt(DSCR_GET_NXTPTR(dp->dscr_nxtptr)); return IRQ_RETVAL(1);
diff --git a/arch/mips/au1000/db1x00/Makefile b/arch/mips/au1000/db1x00/Makefile index 4c7d763..51d62bd 100644 --- a/arch/mips/au1000/db1x00/Makefile +++ b/arch/mips/au1000/db1x00/Makefile
@@ -6,4 +6,3 @@ # Makefile for the Alchemy Semiconductor Db1x00 board. lib-y := init.o board_setup.o irqmap.o -obj-$(CONFIG_WM97XX_COMODULE) += mirage_ts.o
diff --git a/arch/mips/au1000/db1x00/mirage_ts.c b/arch/mips/au1000/db1x00/mirage_ts.c deleted file mode 100644 index 0942dcf..0000000 --- a/arch/mips/au1000/db1x00/mirage_ts.c +++ /dev/null
@@ -1,260 +0,0 @@ -/* - * linux/arch/mips/au1000/db1x00/mirage_ts.c - * - * BRIEF MODULE DESCRIPTION - * Glue between Mirage board-specific touchscreen pieces - * and generic Wolfson Codec touchscreen support. - * - * Based on pb1100_ts.c used in Hydrogen II. - * - * Copyright (c) 2003 Embedded Edge, LLC - * dan@embeddededge.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/fs.h> -#include <linux/poll.h> -#include <linux/proc_fs.h> -#include <linux/smp.h> -#include <linux/smp_lock.h> -#include <linux/wait.h> - -#include <asm/segment.h> -#include <asm/irq.h> -#include <asm/uaccess.h> -#include <asm/delay.h> -#include <asm/au1000.h> - -/* - * Imported interface to Wolfson Codec driver. - */ -extern void *wm97xx_ts_get_handle(int which); -extern int wm97xx_ts_ready(void* ts_handle); -extern void wm97xx_ts_set_cal(void* ts_handle, int xscale, int xtrans, int yscale, int ytrans); -extern u16 wm97xx_ts_get_ac97(void* ts_handle, u8 reg); -extern void wm97xx_ts_set_ac97(void* ts_handle, u8 reg, u16 val); -extern int wm97xx_ts_read_data(void* ts_handle, long* x, long* y, long* pressure); -extern void wm97xx_ts_send_data(void* ts_handle, long x, long y, long z); - -int wm97xx_comodule_present = 1; - - -#define TS_NAME "mirage_ts" - -#define err(format, arg...) printk(KERN_ERR TS_NAME ": " format "\n" , ## arg) -#define info(format, arg...) printk(KERN_INFO TS_NAME ": " format "\n" , ## arg) -#define warn(format, arg...) printk(KERN_WARNING TS_NAME ": " format "\n" , ## arg) -#define DPRINTK(format, arg...) printk("%s: " format "\n", __FUNCTION__ , ## arg) - - -#define PEN_DOWN_IRQ AU1000_GPIO_7 - -static struct task_struct *ts_task = 0; -static DECLARE_COMPLETION(ts_complete); -static DECLARE_WAIT_QUEUE_HEAD(pendown_wait); - -#ifdef CONFIG_WM97XX_FIVEWIRETS -static int release_pressure = 1; -#else -static int release_pressure = 50; -#endif - -typedef struct { - long x; - long y; -} DOWN_EVENT; - -#define SAMPLE_RATE 50 /* samples per second */ -#define PEN_DEBOUNCE 5 /* samples for settling - fn of SAMPLE_RATE */ -#define PEN_UP_TIMEOUT 10 /* in seconds */ -#define PEN_UP_SETTLE 5 /* samples per second */ - -static struct { - int xscale; - int xtrans; - int yscale; - int ytrans; -} mirage_ts_cal = -{ -#if 0 - .xscale = 84, - .xtrans = -157, - .yscale = 66, - .ytrans = -150, -#else - .xscale = 84, - .xtrans = -150, - .yscale = 66, - .ytrans = -146, -#endif -}; - - -static void pendown_irq(int irqnr, void *devid, struct pt_regs *regs) -{ -//DPRINTK("got one 0x%x", au_readl(SYS_PINSTATERD)); - wake_up(&pendown_wait); -} - -static int ts_thread(void *id) -{ - static int pen_was_down = 0; - static DOWN_EVENT pen_xy; - long x, y, z; - void *ts; /* handle */ - struct task_struct *tsk = current; - int timeout = HZ / SAMPLE_RATE; - - ts_task = tsk; - - daemonize(); - tsk->tty = NULL; - tsk->policy = SCHED_FIFO; - tsk->rt_priority = 1; - strcpy(tsk->comm, "touchscreen"); - - /* only want to receive SIGKILL */ - spin_lock_irq(&tsk->sigmask_lock); - siginitsetinv(&tsk->blocked, sigmask(SIGKILL)); - recalc_sigpending(tsk); - spin_unlock_irq(&tsk->sigmask_lock); - - /* get handle for codec */ - ts = wm97xx_ts_get_handle(0); - - /* proceed only after everybody is ready */ - wait_event_timeout(pendown_wait, wm97xx_ts_ready(ts), HZ/4); - - /* board-specific calibration */ - wm97xx_ts_set_cal(ts, - mirage_ts_cal.xscale, - mirage_ts_cal.xtrans, - mirage_ts_cal.yscale, - mirage_ts_cal.ytrans); - - /* route Wolfson pendown interrupts to our GPIO */ - au_sync(); - wm97xx_ts_set_ac97(ts, 0x4c, wm97xx_ts_get_ac97(ts, 0x4c) & ~0x0008); - au_sync(); - wm97xx_ts_set_ac97(ts, 0x56, wm97xx_ts_get_ac97(ts, 0x56) & ~0x0008); - au_sync(); - wm97xx_ts_set_ac97(ts, 0x52, wm97xx_ts_get_ac97(ts, 0x52) | 0x2008); - au_sync(); - - for (;;) { - interruptible_sleep_on_timeout(&pendown_wait, timeout); - disable_irq(PEN_DOWN_IRQ); - if (signal_pending(tsk)) { - break; - } - - /* read codec */ - if (!wm97xx_ts_read_data(ts, &x, &y, &z)) - z = 0; /* treat no-data and pen-up the same */ - - if (signal_pending(tsk)) { - break; - } - - if (z >= release_pressure) { - y = ~y; /* top to bottom */ - if (pen_was_down > 1 /*&& pen_was_down < PEN_DEBOUNCE*/) {//THXXX - /* bounce ? */ - x = pen_xy.x; - y = pen_xy.y; - --pen_was_down; - } else if (pen_was_down <= 1) { - pen_xy.x = x; - pen_xy.y = y; - if (pen_was_down) - wm97xx_ts_send_data(ts, x, y, z); - pen_was_down = PEN_DEBOUNCE; - } - //wm97xx_ts_send_data(ts, x, y, z); - timeout = HZ / SAMPLE_RATE; - } else { - if (pen_was_down) { - if (--pen_was_down) - z = release_pressure; - else //THXXX - wm97xx_ts_send_data(ts, pen_xy.x, pen_xy.y, z); - } - /* The pendown signal takes some time to settle after - * reading the pen pressure so wait a little - * before enabling the pen. - */ - if (! pen_was_down) { -// interruptible_sleep_on_timeout(&pendown_wait, HZ / PEN_UP_SETTLE); - timeout = HZ * PEN_UP_TIMEOUT; - } - } - enable_irq(PEN_DOWN_IRQ); - } - enable_irq(PEN_DOWN_IRQ); - ts_task = NULL; - complete(&ts_complete); - return 0; -} - -static int __init ts_mirage_init(void) -{ - int ret; - - /* pen down signal is connected to GPIO 7 */ - - ret = request_irq(PEN_DOWN_IRQ, pendown_irq, 0, "ts-pendown", NULL); - if (ret) { - err("unable to get pendown irq%d: [%d]", PEN_DOWN_IRQ, ret); - return ret; - } - - lock_kernel(); - ret = kernel_thread(ts_thread, NULL, CLONE_FS | CLONE_FILES); - if (ret < 0) { - unlock_kernel(); - return ret; - } - unlock_kernel(); - - info("Mirage touchscreen IRQ initialized."); - - return 0; -} - -static void __exit ts_mirage_exit(void) -{ - if (ts_task) { - send_sig(SIGKILL, ts_task, 1); - wait_for_completion(&ts_complete); - } - - free_irq(PEN_DOWN_IRQ, NULL); -} - -module_init(ts_mirage_init); -module_exit(ts_mirage_exit); -
diff --git a/arch/mips/basler/excite/excite_device.c b/arch/mips/basler/excite/excite_device.c index bbb4ea4..cc1ce77 100644 --- a/arch/mips/basler/excite/excite_device.c +++ b/arch/mips/basler/excite/excite_device.c
@@ -68,7 +68,7 @@ static struct resource - excite_ctr_resource = { + excite_ctr_resource __attribute__((unused)) = { .name = "GPI counters", .start = 0, .end = 5, @@ -77,7 +77,7 @@ .sibling = NULL, .child = NULL }, - excite_gpislice_resource = { + excite_gpislice_resource __attribute__((unused)) = { .name = "GPI slices", .start = 0, .end = 1, @@ -86,7 +86,7 @@ .sibling = NULL, .child = NULL }, - excite_mdio_channel_resource = { + excite_mdio_channel_resource __attribute__((unused)) = { .name = "MDIO channels", .start = 0, .end = 1, @@ -95,7 +95,7 @@ .sibling = NULL, .child = NULL }, - excite_fifomem_resource = { + excite_fifomem_resource __attribute__((unused)) = { .name = "FIFO memory", .start = 0, .end = 767, @@ -104,7 +104,7 @@ .sibling = NULL, .child = NULL }, - excite_scram_resource = { + excite_scram_resource __attribute__((unused)) = { .name = "Scratch RAM", .start = EXCITE_PHYS_SCRAM, .end = EXCITE_PHYS_SCRAM + EXCITE_SIZE_SCRAM - 1, @@ -113,7 +113,7 @@ .sibling = NULL, .child = NULL }, - excite_fpga_resource = { + excite_fpga_resource __attribute__((unused)) = { .name = "System FPGA", .start = EXCITE_PHYS_FPGA, .end = EXCITE_PHYS_FPGA + EXCITE_SIZE_FPGA - 1, @@ -122,7 +122,7 @@ .sibling = NULL, .child = NULL }, - excite_nand_resource = { + excite_nand_resource __attribute__((unused)) = { .name = "NAND flash control", .start = EXCITE_PHYS_NAND, .end = EXCITE_PHYS_NAND + EXCITE_SIZE_NAND - 1, @@ -131,7 +131,7 @@ .sibling = NULL, .child = NULL }, - excite_titan_resource = { + excite_titan_resource __attribute__((unused)) = { .name = "TITAN registers", .start = EXCITE_PHYS_TITAN, .end = EXCITE_PHYS_TITAN + EXCITE_SIZE_TITAN - 1,
diff --git a/arch/mips/configs/atlas_defconfig b/arch/mips/configs/atlas_defconfig index 5427406..d370528 100644 --- a/arch/mips/configs/atlas_defconfig +++ b/arch/mips/configs/atlas_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -1193,7 +1192,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set
diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig index 887fd95..e12a475 100644 --- a/arch/mips/configs/bigsur_defconfig +++ b/arch/mips/configs/bigsur_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/capcella_defconfig b/arch/mips/configs/capcella_defconfig index a01344f..bfade9a 100644 --- a/arch/mips/configs/capcella_defconfig +++ b/arch/mips/configs/capcella_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/cobalt_defconfig b/arch/mips/configs/cobalt_defconfig index c956824..4baf2ff 100644 --- a/arch/mips/configs/cobalt_defconfig +++ b/arch/mips/configs/cobalt_defconfig
@@ -25,7 +25,6 @@ CONFIG_MIPS_COBALT=y # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -828,7 +827,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set
diff --git a/arch/mips/configs/db1000_defconfig b/arch/mips/configs/db1000_defconfig index c2f33d3..93cca15 100644 --- a/arch/mips/configs/db1000_defconfig +++ b/arch/mips/configs/db1000_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/db1100_defconfig b/arch/mips/configs/db1100_defconfig index 8c44d16..ffd9925 100644 --- a/arch/mips/configs/db1100_defconfig +++ b/arch/mips/configs/db1100_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/db1200_defconfig b/arch/mips/configs/db1200_defconfig index c13768e..63eac5e 100644 --- a/arch/mips/configs/db1200_defconfig +++ b/arch/mips/configs/db1200_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/db1500_defconfig b/arch/mips/configs/db1500_defconfig index 8aea73f..25a095f 100644 --- a/arch/mips/configs/db1500_defconfig +++ b/arch/mips/configs/db1500_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/db1550_defconfig b/arch/mips/configs/db1550_defconfig index 90ccb73..dda469c 100644 --- a/arch/mips/configs/db1550_defconfig +++ b/arch/mips/configs/db1550_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/ddb5477_defconfig b/arch/mips/configs/ddb5477_defconfig index b598cf0..fcd3dd1 100644 --- a/arch/mips/configs/ddb5477_defconfig +++ b/arch/mips/configs/ddb5477_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/decstation_defconfig b/arch/mips/configs/decstation_defconfig index 597150b..8683e0d 100644 --- a/arch/mips/configs/decstation_defconfig +++ b/arch/mips/configs/decstation_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set CONFIG_MACH_DECSTATION=y # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/e55_defconfig b/arch/mips/configs/e55_defconfig index fa2996b..4ace61c 100644 --- a/arch/mips/configs/e55_defconfig +++ b/arch/mips/configs/e55_defconfig
@@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.18-rc1 -# Thu Jul 6 10:04:02 2006 +# Linux kernel version: 2.6.18-rc2 +# Tue Jul 25 23:15:03 2006 # CONFIG_MIPS=y @@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -227,7 +226,6 @@ # # PCCARD (PCMCIA/CardBus) support # -# CONFIG_PCCARD is not set # # PCI Hotplug Support @@ -254,7 +252,6 @@ # CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_FW_LOADER is not set # CONFIG_SYS_HYPERVISOR is not set # @@ -284,6 +281,7 @@ CONFIG_BLK_DEV_RAM=m CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 # CONFIG_BLK_DEV_INITRD is not set # CONFIG_CDROM_PKTCDVD is not set @@ -643,6 +641,7 @@ # # Kernel hacking # +CONFIG_TRACE_IRQFLAGS_SUPPORT=y # CONFIG_PRINTK_TIME is not set # CONFIG_MAGIC_SYSRQ is not set # CONFIG_UNUSED_SYMBOLS is not set @@ -650,7 +649,7 @@ CONFIG_LOG_BUF_SHIFT=14 # CONFIG_DEBUG_FS is not set CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="console=ttyVR0,19200 mem=8M" +CONFIG_CMDLINE="console=ttyVR0,19200 ide0=0x1f0,0x3f6,40 mem=8M" # # Security options
diff --git a/arch/mips/configs/emma2rh_defconfig b/arch/mips/configs/emma2rh_defconfig index 375b2ac..5847c91 100644 --- a/arch/mips/configs/emma2rh_defconfig +++ b/arch/mips/configs/emma2rh_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/ev64120_defconfig b/arch/mips/configs/ev64120_defconfig index b0afc11..bc4c4f1 100644 --- a/arch/mips/configs/ev64120_defconfig +++ b/arch/mips/configs/ev64120_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set CONFIG_MIPS_EV64120=y -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/ev96100_defconfig b/arch/mips/configs/ev96100_defconfig deleted file mode 100644 index 0bdc10f..0000000 --- a/arch/mips/configs/ev96100_defconfig +++ /dev/null
@@ -1,850 +0,0 @@ -# -# Automatically generated make config: don't edit -# Linux kernel version: 2.6.18-rc1 -# Thu Jul 6 10:04:05 2006 -# -CONFIG_MIPS=y - -# -# Machine selection -# -# CONFIG_MIPS_MTX1 is not set -# CONFIG_MIPS_BOSPORUS is not set -# CONFIG_MIPS_PB1000 is not set -# CONFIG_MIPS_PB1100 is not set -# CONFIG_MIPS_PB1500 is not set -# CONFIG_MIPS_PB1550 is not set -# CONFIG_MIPS_PB1200 is not set -# CONFIG_MIPS_DB1000 is not set -# CONFIG_MIPS_DB1100 is not set -# CONFIG_MIPS_DB1500 is not set -# CONFIG_MIPS_DB1550 is not set -# CONFIG_MIPS_DB1200 is not set -# CONFIG_MIPS_MIRAGE is not set -# CONFIG_BASLER_EXCITE is not set -# CONFIG_MIPS_COBALT is not set -# CONFIG_MACH_DECSTATION is not set -# CONFIG_MIPS_EV64120 is not set -CONFIG_MIPS_EV96100=y -# CONFIG_MIPS_IVR is not set -# CONFIG_MIPS_ITE8172 is not set -# CONFIG_MACH_JAZZ is not set -# CONFIG_LASAT is not set -# CONFIG_MIPS_ATLAS is not set -# CONFIG_MIPS_MALTA is not set -# CONFIG_MIPS_SEAD is not set -# CONFIG_WR_PPMC is not set -# CONFIG_MIPS_SIM is not set -# CONFIG_MOMENCO_JAGUAR_ATX is not set -# CONFIG_MOMENCO_OCELOT is not set -# CONFIG_MOMENCO_OCELOT_3 is not set -# CONFIG_MOMENCO_OCELOT_C is not set -# CONFIG_MOMENCO_OCELOT_G is not set -# CONFIG_MIPS_XXS1500 is not set -# CONFIG_PNX8550_V2PCI is not set -# CONFIG_PNX8550_JBS is not set -# CONFIG_DDB5477 is not set -# CONFIG_MACH_VR41XX is not set -# CONFIG_PMC_YOSEMITE is not set -# CONFIG_QEMU is not set -# CONFIG_MARKEINS is not set -# CONFIG_SGI_IP22 is not set -# CONFIG_SGI_IP27 is not set -# CONFIG_SGI_IP32 is not set -# CONFIG_SIBYTE_BIGSUR is not set -# CONFIG_SIBYTE_SWARM is not set -# CONFIG_SIBYTE_SENTOSA is not set -# CONFIG_SIBYTE_RHONE is not set -# CONFIG_SIBYTE_CARMEL is not set -# CONFIG_SIBYTE_PTSWARM is not set -# CONFIG_SIBYTE_LITTLESUR is not set -# CONFIG_SIBYTE_CRHINE is not set -# CONFIG_SIBYTE_CRHONE is not set -# CONFIG_SNI_RM200_PCI is not set -# CONFIG_TOSHIBA_JMR3927 is not set -# CONFIG_TOSHIBA_RBTX4927 is not set -# CONFIG_TOSHIBA_RBTX4938 is not set -CONFIG_RWSEM_GENERIC_SPINLOCK=y -CONFIG_GENERIC_FIND_NEXT_BIT=y -CONFIG_GENERIC_HWEIGHT=y -CONFIG_GENERIC_CALIBRATE_DELAY=y -CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y -CONFIG_DMA_NONCOHERENT=y -CONFIG_DMA_NEED_PCI_MAP_STATE=y -CONFIG_CPU_BIG_ENDIAN=y -# CONFIG_CPU_LITTLE_ENDIAN is not set -CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y -CONFIG_IRQ_CPU=y -CONFIG_MIPS_GT64120=y -CONFIG_SWAP_IO_SPACE=y -CONFIG_MIPS_GT96100=y -CONFIG_MIPS_L1_CACHE_SHIFT=5 - -# -# CPU selection -# -# CONFIG_CPU_MIPS32_R1 is not set -# CONFIG_CPU_MIPS32_R2 is not set -# CONFIG_CPU_MIPS64_R1 is not set -# CONFIG_CPU_MIPS64_R2 is not set -# CONFIG_CPU_R3000 is not set -# CONFIG_CPU_TX39XX is not set -# CONFIG_CPU_VR41XX is not set -# CONFIG_CPU_R4300 is not set -# CONFIG_CPU_R4X00 is not set -# CONFIG_CPU_TX49XX is not set -# CONFIG_CPU_R5000 is not set -# CONFIG_CPU_R5432 is not set -# CONFIG_CPU_R6000 is not set -# CONFIG_CPU_NEVADA is not set -# CONFIG_CPU_R8000 is not set -# CONFIG_CPU_R10000 is not set -CONFIG_CPU_RM7000=y -# CONFIG_CPU_RM9000 is not set -# CONFIG_CPU_SB1 is not set -CONFIG_SYS_HAS_CPU_R5000=y -CONFIG_SYS_HAS_CPU_RM7000=y -CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y -CONFIG_SYS_SUPPORTS_64BIT_KERNEL=y -CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y -CONFIG_CPU_SUPPORTS_64BIT_KERNEL=y - -# -# Kernel type -# -CONFIG_32BIT=y -# CONFIG_64BIT is not set -CONFIG_PAGE_SIZE_4KB=y -# CONFIG_PAGE_SIZE_8KB is not set -# CONFIG_PAGE_SIZE_16KB is not set -# CONFIG_PAGE_SIZE_64KB is not set -CONFIG_BOARD_SCACHE=y -CONFIG_RM7000_CPU_SCACHE=y -CONFIG_CPU_HAS_PREFETCH=y -CONFIG_MIPS_MT_DISABLED=y -# CONFIG_MIPS_MT_SMTC is not set -# CONFIG_MIPS_MT_SMP is not set -# CONFIG_MIPS_VPE_LOADER is not set -# CONFIG_64BIT_PHYS_ADDR is not set -CONFIG_CPU_HAS_LLSC=y -CONFIG_CPU_HAS_SYNC=y -CONFIG_GENERIC_HARDIRQS=y -CONFIG_GENERIC_IRQ_PROBE=y -CONFIG_CPU_SUPPORTS_HIGHMEM=y -CONFIG_ARCH_FLATMEM_ENABLE=y -CONFIG_SELECT_MEMORY_MODEL=y -CONFIG_FLATMEM_MANUAL=y -# CONFIG_DISCONTIGMEM_MANUAL is not set -# CONFIG_SPARSEMEM_MANUAL is not set -CONFIG_FLATMEM=y -CONFIG_FLAT_NODE_MEM_MAP=y -# CONFIG_SPARSEMEM_STATIC is not set -CONFIG_SPLIT_PTLOCK_CPUS=4 -# CONFIG_RESOURCES_64BIT is not set -# CONFIG_HZ_48 is not set -# CONFIG_HZ_100 is not set -# CONFIG_HZ_128 is not set -# CONFIG_HZ_250 is not set -# CONFIG_HZ_256 is not set -CONFIG_HZ_1000=y -# CONFIG_HZ_1024 is not set -CONFIG_SYS_SUPPORTS_ARBIT_HZ=y -CONFIG_HZ=1000 -CONFIG_PREEMPT_NONE=y -# CONFIG_PREEMPT_VOLUNTARY is not set -# CONFIG_PREEMPT is not set -CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" - -# -# Code maturity level options -# -CONFIG_EXPERIMENTAL=y -CONFIG_BROKEN_ON_SMP=y -CONFIG_INIT_ENV_ARG_LIMIT=32 - -# -# General setup -# -CONFIG_LOCALVERSION="" -CONFIG_LOCALVERSION_AUTO=y -CONFIG_SWAP=y -CONFIG_SYSVIPC=y -# CONFIG_POSIX_MQUEUE is not set -# CONFIG_BSD_PROCESS_ACCT is not set -CONFIG_SYSCTL=y -# CONFIG_AUDIT is not set -# CONFIG_IKCONFIG is not set -CONFIG_RELAY=y -CONFIG_INITRAMFS_SOURCE="" -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -CONFIG_EMBEDDED=y -CONFIG_KALLSYMS=y -# CONFIG_KALLSYMS_EXTRA_PASS is not set -# CONFIG_HOTPLUG is not set -CONFIG_PRINTK=y -CONFIG_BUG=y -CONFIG_ELF_CORE=y -CONFIG_BASE_FULL=y -CONFIG_RT_MUTEXES=y -CONFIG_FUTEX=y -CONFIG_EPOLL=y -CONFIG_SHMEM=y -CONFIG_SLAB=y -CONFIG_VM_EVENT_COUNTERS=y -# CONFIG_TINY_SHMEM is not set -CONFIG_BASE_SMALL=0 -# CONFIG_SLOB is not set - -# -# Loadable module support -# -CONFIG_MODULES=y -CONFIG_MODULE_UNLOAD=y -# CONFIG_MODULE_FORCE_UNLOAD is not set -CONFIG_MODVERSIONS=y -CONFIG_MODULE_SRCVERSION_ALL=y -# CONFIG_KMOD is not set - -# -# Block layer -# -# CONFIG_LBD is not set -# CONFIG_BLK_DEV_IO_TRACE is not set -# CONFIG_LSF is not set - -# -# IO Schedulers -# -CONFIG_IOSCHED_NOOP=y -CONFIG_IOSCHED_AS=y -CONFIG_IOSCHED_DEADLINE=y -CONFIG_IOSCHED_CFQ=y -CONFIG_DEFAULT_AS=y -# CONFIG_DEFAULT_DEADLINE is not set -# CONFIG_DEFAULT_CFQ is not set -# CONFIG_DEFAULT_NOOP is not set -CONFIG_DEFAULT_IOSCHED="anticipatory" - -# -# Bus options (PCI, PCMCIA, EISA, ISA, TC) -# -CONFIG_HW_HAS_PCI=y -# CONFIG_PCI is not set -CONFIG_MMU=y - -# -# PCCARD (PCMCIA/CardBus) support -# -# CONFIG_PCCARD is not set - -# -# PCI Hotplug Support -# - -# -# Executable file formats -# -CONFIG_BINFMT_ELF=y -# CONFIG_BINFMT_MISC is not set -CONFIG_TRAD_SIGNALS=y - -# -# Networking -# -CONFIG_NET=y - -# -# Networking options -# -# CONFIG_NETDEBUG is not set -# CONFIG_PACKET is not set -CONFIG_UNIX=y -CONFIG_XFRM=y -CONFIG_XFRM_USER=m -CONFIG_NET_KEY=y -CONFIG_INET=y -# CONFIG_IP_MULTICAST is not set -# CONFIG_IP_ADVANCED_ROUTER is not set -CONFIG_IP_FIB_HASH=y -CONFIG_IP_PNP=y -# CONFIG_IP_PNP_DHCP is not set -CONFIG_IP_PNP_BOOTP=y -# CONFIG_IP_PNP_RARP is not set -# CONFIG_NET_IPIP is not set -# CONFIG_NET_IPGRE is not set -# CONFIG_ARPD is not set -# CONFIG_SYN_COOKIES is not set -# CONFIG_INET_AH is not set -# CONFIG_INET_ESP is not set -# CONFIG_INET_IPCOMP is not set -# CONFIG_INET_XFRM_TUNNEL is not set -# CONFIG_INET_TUNNEL is not set -CONFIG_INET_XFRM_MODE_TRANSPORT=m -CONFIG_INET_XFRM_MODE_TUNNEL=m -CONFIG_INET_DIAG=y -CONFIG_INET_TCP_DIAG=y -# CONFIG_TCP_CONG_ADVANCED is not set -CONFIG_TCP_CONG_BIC=y -# CONFIG_IPV6 is not set -# CONFIG_INET6_XFRM_TUNNEL is not set -# CONFIG_INET6_TUNNEL is not set -CONFIG_NETWORK_SECMARK=y -# CONFIG_NETFILTER is not set - -# -# DCCP Configuration (EXPERIMENTAL) -# -# CONFIG_IP_DCCP is not set - -# -# SCTP Configuration (EXPERIMENTAL) -# -# CONFIG_IP_SCTP is not set - -# -# TIPC Configuration (EXPERIMENTAL) -# -# CONFIG_TIPC is not set -# CONFIG_ATM is not set -# CONFIG_BRIDGE is not set -# CONFIG_VLAN_8021Q is not set -# CONFIG_DECNET is not set -# CONFIG_LLC2 is not set -# CONFIG_IPX is not set -# CONFIG_ATALK is not set -# CONFIG_X25 is not set -# CONFIG_LAPB is not set -# CONFIG_NET_DIVERT is not set -# CONFIG_ECONET is not set -# CONFIG_WAN_ROUTER is not set - -# -# QoS and/or fair queueing -# -# CONFIG_NET_SCHED is not set - -# -# Network testing -# -# CONFIG_NET_PKTGEN is not set -# CONFIG_HAMRADIO is not set -# CONFIG_IRDA is not set -# CONFIG_BT is not set -CONFIG_IEEE80211=m -# CONFIG_IEEE80211_DEBUG is not set -CONFIG_IEEE80211_CRYPT_WEP=m -CONFIG_IEEE80211_CRYPT_CCMP=m -CONFIG_IEEE80211_SOFTMAC=m -# CONFIG_IEEE80211_SOFTMAC_DEBUG is not set -CONFIG_WIRELESS_EXT=y - -# -# Device Drivers -# - -# -# Generic Driver Options -# -CONFIG_STANDALONE=y -CONFIG_PREVENT_FIRMWARE_BUILD=y -# CONFIG_FW_LOADER is not set -# CONFIG_SYS_HYPERVISOR is not set - -# -# Connector - unified userspace <-> kernelspace linker -# -CONFIG_CONNECTOR=m - -# -# Memory Technology Devices (MTD) -# -# CONFIG_MTD is not set - -# -# Parallel port support -# -# CONFIG_PARPORT is not set - -# -# Plug and Play support -# - -# -# Block devices -# -# CONFIG_BLK_DEV_COW_COMMON is not set -# CONFIG_BLK_DEV_LOOP is not set -# CONFIG_BLK_DEV_NBD is not set -# CONFIG_BLK_DEV_RAM is not set -# CONFIG_BLK_DEV_INITRD is not set -CONFIG_CDROM_PKTCDVD=m -CONFIG_CDROM_PKTCDVD_BUFFERS=8 -# CONFIG_CDROM_PKTCDVD_WCACHE is not set -CONFIG_ATA_OVER_ETH=m - -# -# ATA/ATAPI/MFM/RLL support -# -# CONFIG_IDE is not set - -# -# SCSI device support -# -CONFIG_RAID_ATTRS=m -# CONFIG_SCSI is not set - -# -# Multi-device support (RAID and LVM) -# -# CONFIG_MD is not set - -# -# Fusion MPT device support -# -# CONFIG_FUSION is not set - -# -# IEEE 1394 (FireWire) support -# - -# -# I2O device support -# - -# -# Network device support -# -CONFIG_NETDEVICES=y -# CONFIG_DUMMY is not set -# CONFIG_BONDING is not set -# CONFIG_EQUALIZER is not set -# CONFIG_TUN is not set - -# -# PHY device support -# -CONFIG_PHYLIB=m - -# -# MII PHY device drivers -# -CONFIG_MARVELL_PHY=m -CONFIG_DAVICOM_PHY=m -CONFIG_QSEMI_PHY=m -CONFIG_LXT_PHY=m -CONFIG_CICADA_PHY=m -CONFIG_VITESSE_PHY=m -CONFIG_SMSC_PHY=m - -# -# Ethernet (10 or 100Mbit) -# -CONFIG_NET_ETHERNET=y -# CONFIG_MII is not set -CONFIG_MIPS_GT96100ETH=y -# CONFIG_DM9000 is not set - -# -# Ethernet (1000 Mbit) -# - -# -# Ethernet (10000 Mbit) -# - -# -# Token Ring devices -# - -# -# Wireless LAN (non-hamradio) -# -# CONFIG_NET_RADIO is not set - -# -# Wan interfaces -# -# CONFIG_WAN is not set -# CONFIG_PPP is not set -# CONFIG_SLIP is not set -# CONFIG_SHAPER is not set -# CONFIG_NETCONSOLE is not set -# CONFIG_NETPOLL is not set -# CONFIG_NET_POLL_CONTROLLER is not set - -# -# ISDN subsystem -# -# CONFIG_ISDN is not set - -# -# Telephony Support -# -# CONFIG_PHONE is not set - -# -# Input device support -# -CONFIG_INPUT=y - -# -# Userland interfaces -# -CONFIG_INPUT_MOUSEDEV=y -CONFIG_INPUT_MOUSEDEV_PSAUX=y -CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 -CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 -# CONFIG_INPUT_JOYDEV is not set -# CONFIG_INPUT_TSDEV is not set -# CONFIG_INPUT_EVDEV is not set -# CONFIG_INPUT_EVBUG is not set - -# -# Input Device Drivers -# -# CONFIG_INPUT_KEYBOARD is not set -# CONFIG_INPUT_MOUSE is not set -# CONFIG_INPUT_JOYSTICK is not set -# CONFIG_INPUT_TOUCHSCREEN is not set -# CONFIG_INPUT_MISC is not set - -# -# Hardware I/O ports -# -CONFIG_SERIO=y -# CONFIG_SERIO_I8042 is not set -CONFIG_SERIO_SERPORT=y -# CONFIG_SERIO_LIBPS2 is not set -CONFIG_SERIO_RAW=m -# CONFIG_GAMEPORT is not set - -# -# Character devices -# -CONFIG_VT=y -CONFIG_VT_CONSOLE=y -CONFIG_HW_CONSOLE=y -CONFIG_VT_HW_CONSOLE_BINDING=y -# CONFIG_SERIAL_NONSTANDARD is not set - -# -# Serial drivers -# -CONFIG_SERIAL_8250=y -CONFIG_SERIAL_8250_CONSOLE=y -CONFIG_SERIAL_8250_NR_UARTS=4 -CONFIG_SERIAL_8250_RUNTIME_UARTS=4 -# CONFIG_SERIAL_8250_EXTENDED is not set - -# -# Non-8250 serial port support -# -CONFIG_SERIAL_CORE=y -CONFIG_SERIAL_CORE_CONSOLE=y -CONFIG_UNIX98_PTYS=y -CONFIG_LEGACY_PTYS=y -CONFIG_LEGACY_PTY_COUNT=256 - -# -# IPMI -# -# CONFIG_IPMI_HANDLER is not set - -# -# Watchdog Cards -# -# CONFIG_WATCHDOG is not set -# CONFIG_HW_RANDOM is not set -# CONFIG_RTC is not set -# CONFIG_GEN_RTC is not set -# CONFIG_DTLK is not set -# CONFIG_R3964 is not set - -# -# Ftape, the floppy tape device driver -# -# CONFIG_RAW_DRIVER is not set - -# -# TPM devices -# -# CONFIG_TCG_TPM is not set -# CONFIG_TELCLOCK is not set - -# -# I2C support -# -# CONFIG_I2C is not set - -# -# SPI support -# -# CONFIG_SPI is not set -# CONFIG_SPI_MASTER is not set - -# -# Dallas's 1-wire bus -# -# CONFIG_W1 is not set - -# -# Hardware Monitoring support -# -# CONFIG_HWMON is not set -# CONFIG_HWMON_VID is not set - -# -# Misc devices -# - -# -# Multimedia devices -# -# CONFIG_VIDEO_DEV is not set -CONFIG_VIDEO_V4L2=y - -# -# Digital Video Broadcasting Devices -# -# CONFIG_DVB is not set - -# -# Graphics support -# -# CONFIG_FIRMWARE_EDID is not set -# CONFIG_FB is not set - -# -# Console display driver support -# -# CONFIG_VGA_CONSOLE is not set -CONFIG_DUMMY_CONSOLE=y - -# -# Sound -# -# CONFIG_SOUND is not set - -# -# USB support -# -# CONFIG_USB_ARCH_HAS_HCD is not set -# CONFIG_USB_ARCH_HAS_OHCI is not set -# CONFIG_USB_ARCH_HAS_EHCI is not set - -# -# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' -# - -# -# USB Gadget Support -# -# CONFIG_USB_GADGET is not set - -# -# MMC/SD Card support -# -# CONFIG_MMC is not set - -# -# LED devices -# -# CONFIG_NEW_LEDS is not set - -# -# LED drivers -# - -# -# LED Triggers -# - -# -# InfiniBand support -# - -# -# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) -# - -# -# Real Time Clock -# -# CONFIG_RTC_CLASS is not set - -# -# DMA Engine support -# -# CONFIG_DMA_ENGINE is not set - -# -# DMA Clients -# - -# -# DMA Devices -# - -# -# File systems -# -CONFIG_EXT2_FS=y -# CONFIG_EXT2_FS_XATTR is not set -# CONFIG_EXT2_FS_XIP is not set -# CONFIG_EXT3_FS is not set -# CONFIG_REISERFS_FS is not set -# CONFIG_JFS_FS is not set -# CONFIG_FS_POSIX_ACL is not set -# CONFIG_XFS_FS is not set -# CONFIG_OCFS2_FS is not set -# CONFIG_MINIX_FS is not set -# CONFIG_ROMFS_FS is not set -CONFIG_INOTIFY=y -CONFIG_INOTIFY_USER=y -# CONFIG_QUOTA is not set -CONFIG_DNOTIFY=y -# CONFIG_AUTOFS_FS is not set -# CONFIG_AUTOFS4_FS is not set -CONFIG_FUSE_FS=m - -# -# CD-ROM/DVD Filesystems -# -# CONFIG_ISO9660_FS is not set -# CONFIG_UDF_FS is not set - -# -# DOS/FAT/NT Filesystems -# -# CONFIG_MSDOS_FS is not set -# CONFIG_VFAT_FS is not set -# CONFIG_NTFS_FS is not set - -# -# Pseudo filesystems -# -CONFIG_PROC_FS=y -CONFIG_PROC_KCORE=y -CONFIG_SYSFS=y -# CONFIG_TMPFS is not set -# CONFIG_HUGETLB_PAGE is not set -CONFIG_RAMFS=y -# CONFIG_CONFIGFS_FS is not set - -# -# Miscellaneous filesystems -# -# CONFIG_ADFS_FS is not set -# CONFIG_AFFS_FS is not set -# CONFIG_HFS_FS is not set -# CONFIG_HFSPLUS_FS is not set -# CONFIG_BEFS_FS is not set -# CONFIG_BFS_FS is not set -# CONFIG_EFS_FS is not set -# CONFIG_CRAMFS is not set -# CONFIG_VXFS_FS is not set -# CONFIG_HPFS_FS is not set -# CONFIG_QNX4FS_FS is not set -# CONFIG_SYSV_FS is not set -# CONFIG_UFS_FS is not set - -# -# Network File Systems -# -CONFIG_NFS_FS=y -# CONFIG_NFS_V3 is not set -# CONFIG_NFS_V4 is not set -# CONFIG_NFS_DIRECTIO is not set -# CONFIG_NFSD is not set -CONFIG_ROOT_NFS=y -CONFIG_LOCKD=y -CONFIG_NFS_COMMON=y -CONFIG_SUNRPC=y -# CONFIG_RPCSEC_GSS_KRB5 is not set -# CONFIG_RPCSEC_GSS_SPKM3 is not set -# CONFIG_SMB_FS is not set -# CONFIG_CIFS is not set -# CONFIG_CIFS_DEBUG2 is not set -# CONFIG_NCP_FS is not set -# CONFIG_CODA_FS is not set -# CONFIG_AFS_FS is not set -# CONFIG_9P_FS is not set - -# -# Partition Types -# -# CONFIG_PARTITION_ADVANCED is not set -CONFIG_MSDOS_PARTITION=y - -# -# Native Language Support -# -# CONFIG_NLS is not set - -# -# Profiling support -# -# CONFIG_PROFILING is not set - -# -# Kernel hacking -# -# CONFIG_PRINTK_TIME is not set -# CONFIG_MAGIC_SYSRQ is not set -# CONFIG_UNUSED_SYMBOLS is not set -# CONFIG_DEBUG_KERNEL is not set -CONFIG_LOG_BUF_SHIFT=14 -# CONFIG_DEBUG_FS is not set -CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="" - -# -# Security options -# -CONFIG_KEYS=y -CONFIG_KEYS_DEBUG_PROC_KEYS=y -# CONFIG_SECURITY is not set - -# -# Cryptographic options -# -CONFIG_CRYPTO=y -CONFIG_CRYPTO_HMAC=y -CONFIG_CRYPTO_NULL=m -CONFIG_CRYPTO_MD4=m -CONFIG_CRYPTO_MD5=m -CONFIG_CRYPTO_SHA1=m -CONFIG_CRYPTO_SHA256=m -CONFIG_CRYPTO_SHA512=m -CONFIG_CRYPTO_WP512=m -CONFIG_CRYPTO_TGR192=m -CONFIG_CRYPTO_DES=m -CONFIG_CRYPTO_BLOWFISH=m -CONFIG_CRYPTO_TWOFISH=m -CONFIG_CRYPTO_SERPENT=m -CONFIG_CRYPTO_AES=m -CONFIG_CRYPTO_CAST5=m -CONFIG_CRYPTO_CAST6=m -CONFIG_CRYPTO_TEA=m -CONFIG_CRYPTO_ARC4=m -CONFIG_CRYPTO_KHAZAD=m -CONFIG_CRYPTO_ANUBIS=m -CONFIG_CRYPTO_DEFLATE=m -CONFIG_CRYPTO_MICHAEL_MIC=m -CONFIG_CRYPTO_CRC32C=m -# CONFIG_CRYPTO_TEST is not set - -# -# Hardware crypto devices -# - -# -# Library routines -# -# CONFIG_CRC_CCITT is not set -CONFIG_CRC16=m -CONFIG_CRC32=m -CONFIG_LIBCRC32C=m -CONFIG_ZLIB_INFLATE=m -CONFIG_ZLIB_DEFLATE=m -CONFIG_PLIST=y
diff --git a/arch/mips/configs/excite_defconfig b/arch/mips/configs/excite_defconfig index 045ebd0..eb87cbb 100644 --- a/arch/mips/configs/excite_defconfig +++ b/arch/mips/configs/excite_defconfig
@@ -26,7 +26,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig index ef16d1f..cc9b24e 100644 --- a/arch/mips/configs/ip22_defconfig +++ b/arch/mips/configs/ip22_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -1013,7 +1012,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set
diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig index 4bf1ee7..50092ba 100644 --- a/arch/mips/configs/ip27_defconfig +++ b/arch/mips/configs/ip27_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -900,7 +899,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set
diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig index f83dc09..dec2ba6 100644 --- a/arch/mips/configs/ip32_defconfig +++ b/arch/mips/configs/ip32_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/it8172_defconfig b/arch/mips/configs/it8172_defconfig index a91d72a..37f9dd7 100644 --- a/arch/mips/configs/it8172_defconfig +++ b/arch/mips/configs/it8172_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set CONFIG_MIPS_ITE8172=y # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/ivr_defconfig b/arch/mips/configs/ivr_defconfig index cebc672..18874a4 100644 --- a/arch/mips/configs/ivr_defconfig +++ b/arch/mips/configs/ivr_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set CONFIG_MIPS_IVR=y # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/jaguar-atx_defconfig b/arch/mips/configs/jaguar-atx_defconfig index 5d9eb11..9f1e304 100644 --- a/arch/mips/configs/jaguar-atx_defconfig +++ b/arch/mips/configs/jaguar-atx_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -731,7 +730,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y
diff --git a/arch/mips/configs/jmr3927_defconfig b/arch/mips/configs/jmr3927_defconfig index be45a90..fded3f7 100644 --- a/arch/mips/configs/jmr3927_defconfig +++ b/arch/mips/configs/jmr3927_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/lasat200_defconfig b/arch/mips/configs/lasat200_defconfig index 64dc9f4..320b8cd 100644 --- a/arch/mips/configs/lasat200_defconfig +++ b/arch/mips/configs/lasat200_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -905,7 +904,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set
diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig index 2690baf..0ba1ef5 100644 --- a/arch/mips/configs/malta_defconfig +++ b/arch/mips/configs/malta_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -1230,7 +1229,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set
diff --git a/arch/mips/configs/mipssim_defconfig b/arch/mips/configs/mipssim_defconfig index c298979..adbeead 100644 --- a/arch/mips/configs/mipssim_defconfig +++ b/arch/mips/configs/mipssim_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/mpc30x_defconfig b/arch/mips/configs/mpc30x_defconfig index 938b38a..79fd544 100644 --- a/arch/mips/configs/mpc30x_defconfig +++ b/arch/mips/configs/mpc30x_defconfig
@@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.18-rc1 -# Thu Jul 6 10:04:15 2006 +# Linux kernel version: 2.6.18-rc2 +# Tue Jul 25 23:16:46 2006 # CONFIG_MIPS=y @@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -71,7 +70,6 @@ CONFIG_VICTOR_MPC30X=y # CONFIG_ZAO_CAPCELLA is not set CONFIG_PCI_VR41XX=y -CONFIG_VRC4173=y CONFIG_RWSEM_GENERIC_SPINLOCK=y CONFIG_GENERIC_FIND_NEXT_BIT=y CONFIG_GENERIC_HWEIGHT=y @@ -168,6 +166,7 @@ CONFIG_SYSVIPC=y # CONFIG_POSIX_MQUEUE is not set # CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set CONFIG_SYSCTL=y # CONFIG_AUDIT is not set # CONFIG_IKCONFIG is not set @@ -841,7 +840,7 @@ # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set # CONFIG_USB_LED is not set -# CONFIG_USB_CY7C63 is not set +# CONFIG_USB_CYPRESS_CY7C63 is not set # CONFIG_USB_CYTHERM is not set # CONFIG_USB_PHIDGETKIT is not set # CONFIG_USB_PHIDGETSERVO is not set @@ -982,7 +981,6 @@ # CONFIG_RPCSEC_GSS_SPKM3 is not set # CONFIG_SMB_FS is not set # CONFIG_CIFS is not set -# CONFIG_CIFS_DEBUG2 is not set # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set @@ -1007,6 +1005,7 @@ # # Kernel hacking # +CONFIG_TRACE_IRQFLAGS_SUPPORT=y # CONFIG_PRINTK_TIME is not set # CONFIG_MAGIC_SYSRQ is not set # CONFIG_UNUSED_SYMBOLS is not set @@ -1014,7 +1013,7 @@ CONFIG_LOG_BUF_SHIFT=14 # CONFIG_DEBUG_FS is not set CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="mem=32M console=ttyVR0,19200" +CONFIG_CMDLINE="mem=32M console=ttyVR0,19200 ide0=0x170,0x376,73" # # Security options
diff --git a/arch/mips/configs/ocelot_3_defconfig b/arch/mips/configs/ocelot_3_defconfig index ec5758f..4d87da2 100644 --- a/arch/mips/configs/ocelot_3_defconfig +++ b/arch/mips/configs/ocelot_3_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/ocelot_c_defconfig b/arch/mips/configs/ocelot_c_defconfig index 0d33d87..a7ac2b0 100644 --- a/arch/mips/configs/ocelot_c_defconfig +++ b/arch/mips/configs/ocelot_c_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -774,7 +773,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set
diff --git a/arch/mips/configs/ocelot_defconfig b/arch/mips/configs/ocelot_defconfig index 4b99910..853e7bb 100644 --- a/arch/mips/configs/ocelot_defconfig +++ b/arch/mips/configs/ocelot_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -723,7 +722,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set
diff --git a/arch/mips/configs/ocelot_g_defconfig b/arch/mips/configs/ocelot_g_defconfig index 827b344..8524efa 100644 --- a/arch/mips/configs/ocelot_g_defconfig +++ b/arch/mips/configs/ocelot_g_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -777,7 +776,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set
diff --git a/arch/mips/configs/pb1100_defconfig b/arch/mips/configs/pb1100_defconfig index 9ed60fe..1a16e92 100644 --- a/arch/mips/configs/pb1100_defconfig +++ b/arch/mips/configs/pb1100_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/pb1500_defconfig b/arch/mips/configs/pb1500_defconfig index 6774254..9ea8ede 100644 --- a/arch/mips/configs/pb1500_defconfig +++ b/arch/mips/configs/pb1500_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/pb1550_defconfig b/arch/mips/configs/pb1550_defconfig index 1afe5bf..c4a1589 100644 --- a/arch/mips/configs/pb1550_defconfig +++ b/arch/mips/configs/pb1550_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/pnx8550-jbs_defconfig b/arch/mips/configs/pnx8550-jbs_defconfig index ac616c8..1cbf270 100644 --- a/arch/mips/configs/pnx8550-jbs_defconfig +++ b/arch/mips/configs/pnx8550-jbs_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/pnx8550-v2pci_defconfig b/arch/mips/configs/pnx8550-v2pci_defconfig index a8eb51b..bec30b1 100644 --- a/arch/mips/configs/pnx8550-v2pci_defconfig +++ b/arch/mips/configs/pnx8550-v2pci_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/qemu_defconfig b/arch/mips/configs/qemu_defconfig index 6a63a11..f5f799e 100644 --- a/arch/mips/configs/qemu_defconfig +++ b/arch/mips/configs/qemu_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -687,7 +686,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y
diff --git a/arch/mips/configs/rbhma4500_defconfig b/arch/mips/configs/rbhma4500_defconfig index 6779f44..2f56502 100644 --- a/arch/mips/configs/rbhma4500_defconfig +++ b/arch/mips/configs/rbhma4500_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig index b7826d3..4fee90b 100644 --- a/arch/mips/configs/rm200_defconfig +++ b/arch/mips/configs/rm200_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -1442,7 +1441,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set
diff --git a/arch/mips/configs/sb1250-swarm_defconfig b/arch/mips/configs/sb1250-swarm_defconfig index 625c1c6..9041f09 100644 --- a/arch/mips/configs/sb1250-swarm_defconfig +++ b/arch/mips/configs/sb1250-swarm_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/sead_defconfig b/arch/mips/configs/sead_defconfig index 4401b60..02abb2f 100644 --- a/arch/mips/configs/sead_defconfig +++ b/arch/mips/configs/sead_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/tb0226_defconfig b/arch/mips/configs/tb0226_defconfig index 2ba4e25..ca3d0c4 100644 --- a/arch/mips/configs/tb0226_defconfig +++ b/arch/mips/configs/tb0226_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/tb0229_defconfig b/arch/mips/configs/tb0229_defconfig index fc8a407..4e2009a 100644 --- a/arch/mips/configs/tb0229_defconfig +++ b/arch/mips/configs/tb0229_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/tb0287_defconfig b/arch/mips/configs/tb0287_defconfig index effcb63..535a813 100644 --- a/arch/mips/configs/tb0287_defconfig +++ b/arch/mips/configs/tb0287_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/workpad_defconfig b/arch/mips/configs/workpad_defconfig index 4891d02..3a3ef20 100644 --- a/arch/mips/configs/workpad_defconfig +++ b/arch/mips/configs/workpad_defconfig
@@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.18-rc1 -# Thu Jul 6 10:04:21 2006 +# Linux kernel version: 2.6.18-rc2 +# Tue Jul 25 23:13:04 2006 # CONFIG_MIPS=y @@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -166,6 +165,7 @@ CONFIG_SYSVIPC=y # CONFIG_POSIX_MQUEUE is not set # CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set CONFIG_SYSCTL=y # CONFIG_AUDIT is not set # CONFIG_IKCONFIG is not set @@ -379,6 +379,7 @@ CONFIG_BLK_DEV_RAM=m CONFIG_BLK_DEV_RAM_COUNT=16 CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 # CONFIG_BLK_DEV_INITRD is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set @@ -855,7 +856,6 @@ # CONFIG_RPCSEC_GSS_SPKM3 is not set # CONFIG_SMB_FS is not set # CONFIG_CIFS is not set -# CONFIG_CIFS_DEBUG2 is not set # CONFIG_NCP_FS is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set @@ -880,6 +880,7 @@ # # Kernel hacking # +CONFIG_TRACE_IRQFLAGS_SUPPORT=y # CONFIG_PRINTK_TIME is not set # CONFIG_MAGIC_SYSRQ is not set # CONFIG_UNUSED_SYMBOLS is not set @@ -887,7 +888,7 @@ CONFIG_LOG_BUF_SHIFT=14 # CONFIG_DEBUG_FS is not set CONFIG_CROSSCOMPILE=y -CONFIG_CMDLINE="console=ttyVR0,19200 mem=16M" +CONFIG_CMDLINE="console=ttyVR0,19200 ide0=0x170,0x376,49 mem=16M" # # Security options
diff --git a/arch/mips/configs/wrppmc_defconfig b/arch/mips/configs/wrppmc_defconfig index 3e4b16b..e6b1dea 100644 --- a/arch/mips/configs/wrppmc_defconfig +++ b/arch/mips/configs/wrppmc_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/configs/yosemite_defconfig b/arch/mips/configs/yosemite_defconfig index 3a68d8a..06a072b 100644 --- a/arch/mips/configs/yosemite_defconfig +++ b/arch/mips/configs/yosemite_defconfig
@@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set
diff --git a/arch/mips/defconfig b/arch/mips/defconfig index fff6fcc..cc9b24e 100644 --- a/arch/mips/defconfig +++ b/arch/mips/defconfig
@@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit # Linux kernel version: 2.6.18-rc1 -# Thu Jul 6 09:49:33 2006 +# Thu Jul 6 10:04:10 2006 # CONFIG_MIPS=y @@ -25,7 +25,6 @@ # CONFIG_MIPS_COBALT is not set # CONFIG_MACH_DECSTATION is not set # CONFIG_MIPS_EV64120 is not set -# CONFIG_MIPS_EV96100 is not set # CONFIG_MIPS_IVR is not set # CONFIG_MIPS_ITE8172 is not set # CONFIG_MACH_JAZZ is not set @@ -1013,7 +1012,7 @@ CONFIG_PROC_FS=y CONFIG_PROC_KCORE=y CONFIG_SYSFS=y -# CONFIG_TMPFS is not set +CONFIG_TMPFS=y # CONFIG_HUGETLB_PAGE is not set CONFIG_RAMFS=y # CONFIG_CONFIGFS_FS is not set
diff --git a/arch/mips/galileo-boards/ev96100/Makefile b/arch/mips/galileo-boards/ev96100/Makefile deleted file mode 100644 index cd868ec..0000000 --- a/arch/mips/galileo-boards/ev96100/Makefile +++ /dev/null
@@ -1,9 +0,0 @@ -# -# Copyright 2000 MontaVista Software Inc. -# Author: MontaVista Software, Inc. -# ppopov@mvista.com or source@mvista.com -# -# Makefile for the Galileo EV96100 board. -# - -obj-y += init.o irq.o puts.o reset.o time.o setup.o
diff --git a/arch/mips/galileo-boards/ev96100/init.c b/arch/mips/galileo-boards/ev96100/init.c deleted file mode 100644 index a01fe9b..0000000 --- a/arch/mips/galileo-boards/ev96100/init.c +++ /dev/null
@@ -1,173 +0,0 @@ -/* - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This file was derived from Carsten Langgaard's - * arch/mips/mips-boards/generic/generic.c - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#include <linux/init.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/bootmem.h> -#include <linux/string.h> -#include <linux/kernel.h> - -#include <asm/addrspace.h> -#include <asm/bootinfo.h> -#include <asm/gt64120.h> - - -/* Environment variable */ - -typedef struct { - char *name; - char *val; -} t_env_var; - -int prom_argc; -char **prom_argv, **prom_envp; - -int init_debug = 0; - -char * __init prom_getcmdline(void) -{ - return &(arcs_cmdline[0]); -} - -unsigned long __init prom_free_prom_memory(void) -{ - return 0; -} - -void __init prom_init_cmdline(void) -{ - char *cp; - int actr; - - actr = 1; /* Always ignore argv[0] */ - - cp = &(arcs_cmdline[0]); - while(actr < prom_argc) { - strcpy(cp, prom_argv[actr]); - cp += strlen(prom_argv[actr]); - *cp++ = ' '; - actr++; - } - if (cp != &(arcs_cmdline[0])) /* get rid of trailing space */ - --cp; - *cp = '\0'; -} - -char *prom_getenv(char *envname) -{ - /* - * Return a pointer to the given environment variable. - */ - - t_env_var *env = (t_env_var *) prom_envp; - int i; - - i = strlen(envname); - - while (env->name) { - if (strncmp(envname, env->name, i) == 0) { - return (env->val); - } - env++; - } - return (NULL); -} - -static inline unsigned char str2hexnum(unsigned char c) -{ - if (c >= '0' && c <= '9') - return c - '0'; - if (c >= 'a' && c <= 'f') - return c - 'a' + 10; - return 0; /* foo */ -} - -static inline void str2eaddr(unsigned char *ea, unsigned char *str) -{ - int i; - - for (i = 0; i < 6; i++) { - unsigned char num; - - if ((*str == '.') || (*str == ':')) - str++; - num = str2hexnum(*str++) << 4; - num |= (str2hexnum(*str++)); - ea[i] = num; - } -} - -int get_ethernet_addr(char *ethernet_addr) -{ - char *ethaddr_str; - - ethaddr_str = prom_getenv("ethaddr"); - if (!ethaddr_str) { - printk("ethaddr not set in boot prom\n"); - return -1; - } - str2eaddr(ethernet_addr, ethaddr_str); - - if (init_debug > 1) { - int i; - printk("get_ethernet_addr: "); - for (i = 0; i < 5; i++) - printk("%02x:", - (unsigned char) *(ethernet_addr + i)); - printk("%02x\n", *(ethernet_addr + i)); - } - - return 0; -} - -const char *get_system_type(void) -{ - return "Galileo EV96100"; -} - -void __init prom_init(void) -{ - volatile unsigned char *uart; - char ppbuf[8]; - - prom_argc = fw_arg0; - prom_argv = (char **) fw_arg1; - prom_envp = (char **) fw_arg2; - - mips_machgroup = MACH_GROUP_GALILEO; - mips_machtype = MACH_EV96100; - - prom_init_cmdline(); - - /* 32 MB upgradable */ - add_memory_region(0, 32 << 20, BOOT_MEM_RAM); -}
diff --git a/arch/mips/galileo-boards/ev96100/irq.c b/arch/mips/galileo-boards/ev96100/irq.c deleted file mode 100644 index ee5d672..0000000 --- a/arch/mips/galileo-boards/ev96100/irq.c +++ /dev/null
@@ -1,77 +0,0 @@ -/* - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This file was derived from Carsten Langgaard's - * arch/mips/mips-boards/atlas/atlas_int.c. - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/kernel_stat.h> -#include <linux/irq.h> -#include <linux/module.h> -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/types.h> -#include <linux/interrupt.h> -#include <asm/irq_cpu.h> - -static inline unsigned int ffz8(unsigned int word) -{ - unsigned long k; - - k = 7; - if (word & 0x0fUL) { k -= 4; word <<= 4; } - if (word & 0x30UL) { k -= 2; word <<= 2; } - if (word & 0x40UL) { k -= 1; } - - return k; -} - -extern void mips_timer_interrupt(struct pt_regs *regs); - -asmlinkage void ev96100_cpu_irq(unsigned int pending, struct pt_regs *regs) -{ - do_IRQ(ffz8(pending >> 8), regs); -} - -asmlinkage void plat_irq_dispatch(struct pt_regs *regs) -{ - unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM; - - if (pending & CAUSEF_IP7) - mips_timer_interrupt(regs); - else if (pending) - ev96100_cpu_irq(pending, regs); - else - spurious_interrupt(regs); -} - -void __init arch_init_irq(void) -{ - mips_cpu_irq_init(0); -}
diff --git a/arch/mips/galileo-boards/ev96100/puts.c b/arch/mips/galileo-boards/ev96100/puts.c deleted file mode 100644 index 49dc6d1..0000000 --- a/arch/mips/galileo-boards/ev96100/puts.c +++ /dev/null
@@ -1,138 +0,0 @@ - -/* - * Debug routines which directly access the uart. - */ - -#include <linux/types.h> -#include <asm/gt64120.h> - - -//#define SERIAL_BASE EV96100_UART0_REGS_BASE -#define SERIAL_BASE 0xBD000020 -#define NS16550_BASE SERIAL_BASE - -#define SERA_CMD 0x0D -#define SERA_DATA 0x08 -//#define SERB_CMD 0x05 -#define SERB_CMD 20 -#define SERB_DATA 0x00 -#define TX_BUSY 0x20 - -#define TIMEOUT 0xffff -#undef SLOW_DOWN - -static const char digits[16] = "0123456789abcdef"; -static volatile unsigned char *const com1 = (unsigned char *) SERIAL_BASE; - - -#ifdef SLOW_DOWN -static inline void slow_down() -{ - int k; - for (k = 0; k < 10000; k++); -} -#else -#define slow_down() -#endif - -void putch(const unsigned char c) -{ - unsigned char ch; - int i = 0; - - do { - ch = com1[SERB_CMD]; - slow_down(); - i++; - if (i > TIMEOUT) { - break; - } - } while (0 == (ch & TX_BUSY)); - com1[SERB_DATA] = c; -} - -void putchar(const unsigned char c) -{ - unsigned char ch; - int i = 0; - - do { - ch = com1[SERB_CMD]; - slow_down(); - i++; - if (i > TIMEOUT) { - break; - } - } while (0 == (ch & TX_BUSY)); - com1[SERB_DATA] = c; -} - -void puts(unsigned char *cp) -{ - unsigned char ch; - int i = 0; - - while (*cp) { - do { - ch = com1[SERB_CMD]; - slow_down(); - i++; - if (i > TIMEOUT) { - break; - } - } while (0 == (ch & TX_BUSY)); - com1[SERB_DATA] = *cp++; - } - putch('\r'); - putch('\n'); -} - -void fputs(unsigned char *cp) -{ - unsigned char ch; - int i = 0; - - while (*cp) { - - do { - ch = com1[SERB_CMD]; - slow_down(); - i++; - if (i > TIMEOUT) { - break; - } - } while (0 == (ch & TX_BUSY)); - com1[SERB_DATA] = *cp++; - } -} - - -void put64(uint64_t ul) -{ - int cnt; - unsigned ch; - - cnt = 16; /* 16 nibbles in a 64 bit long */ - putch('0'); - putch('x'); - do { - cnt--; - ch = (unsigned char) (ul >> cnt * 4) & 0x0F; - putch(digits[ch]); - } while (cnt > 0); -} - -void put32(unsigned u) -{ - int cnt; - unsigned ch; - - cnt = 8; /* 8 nibbles in a 32 bit long */ - putch('0'); - putch('x'); - do { - cnt--; - ch = (unsigned char) (u >> cnt * 4) & 0x0F; - putch(digits[ch]); - } while (cnt > 0); -}
diff --git a/arch/mips/galileo-boards/ev96100/reset.c b/arch/mips/galileo-boards/ev96100/reset.c deleted file mode 100644 index 5ef9b7f..0000000 --- a/arch/mips/galileo-boards/ev96100/reset.c +++ /dev/null
@@ -1,70 +0,0 @@ -/* - * BRIEF MODULE DESCRIPTION - * Galileo EV96100 reset routines. - * - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This file was derived from Carsten Langgaard's - * arch/mips/mips-boards/generic/reset.c - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#include <linux/sched.h> -#include <linux/mm.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/processor.h> -#include <asm/reboot.h> -#include <asm/system.h> -#include <asm/gt64120.h> - -static void mips_machine_restart(char *command); -static void mips_machine_halt(void); - -static void mips_machine_restart(char *command) -{ - set_c0_status(ST0_BEV | ST0_ERL); - change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED); - flush_cache_all(); - write_c0_wired(0); - __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000)); - while (1); -} - -static void mips_machine_halt(void) -{ - printk(KERN_NOTICE "You can safely turn off the power\n"); - while (1) - __asm__(".set\tmips3\n\t" - "wait\n\t" - ".set\tmips0"); -} - -void mips_reboot_setup(void) -{ - _machine_restart = mips_machine_restart; - _machine_halt = mips_machine_halt; -}
diff --git a/arch/mips/galileo-boards/ev96100/setup.c b/arch/mips/galileo-boards/ev96100/setup.c deleted file mode 100644 index 639ad55..0000000 --- a/arch/mips/galileo-boards/ev96100/setup.c +++ /dev/null
@@ -1,159 +0,0 @@ -/* - * BRIEF MODULE DESCRIPTION - * Galileo EV96100 setup. - * - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This file was derived from Carsten Langgaard's - * arch/mips/mips-boards/atlas/atlas_setup.c. - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#include <linux/init.h> -#include <linux/sched.h> -#include <linux/ioport.h> -#include <linux/string.h> -#include <linux/ctype.h> -#include <linux/pci.h> - -#include <asm/cpu.h> -#include <asm/bootinfo.h> -#include <asm/mipsregs.h> -#include <asm/irq.h> -#include <asm/delay.h> -#include <asm/gt64120.h> -#include <asm/galileo-boards/ev96100int.h> - - -extern char *__init prom_getcmdline(void); - -extern void mips_reboot_setup(void); - -unsigned char mac_0_1[12]; - -void __init plat_mem_setup(void) -{ - unsigned int config = read_c0_config(); - unsigned int status = read_c0_status(); - unsigned int info = read_c0_info(); - u32 tmp; - - char *argptr; - - clear_c0_status(ST0_FR); - - if (config & 0x8) - printk("Secondary cache is enabled\n"); - else - printk("Secondary cache is disabled\n"); - - if (status & (1 << 27)) - printk("User-mode cache ops enabled\n"); - else - printk("User-mode cache ops disabled\n"); - - printk("CP0 info reg: %x\n", (unsigned) info); - if (info & (1 << 28)) - printk("burst mode Scache RAMS\n"); - else - printk("pipelined Scache RAMS\n"); - - if (info & 0x1) - printk("Atomic Enable is set\n"); - - argptr = prom_getcmdline(); -#ifdef CONFIG_SERIAL_CONSOLE - if (strstr(argptr, "console=") == NULL) { - argptr = prom_getcmdline(); - strcat(argptr, " console=ttyS0,115200"); - } -#endif - - mips_reboot_setup(); - - set_io_port_base(KSEG1); - ioport_resource.start = GT_PCI_IO_BASE; - ioport_resource.end = GT_PCI_IO_BASE + 0x01ffffff; - -#ifdef CONFIG_BLK_DEV_INITRD - ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0); -#endif - - - /* - * Setup GT controller master bit so we can do config cycles - */ - - /* Clear cause register bits */ - GT_WRITE(GT_INTRCAUSE_OFS, ~(GT_INTRCAUSE_MASABORT0_BIT | - GT_INTRCAUSE_TARABORT0_BIT)); - /* Setup address */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, - (0 << GT_PCI0_CFGADDR_BUSNUM_SHF) | - (0 << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | - ((PCI_COMMAND / 4) << GT_PCI0_CFGADDR_REGNUM_SHF) | - GT_PCI0_CFGADDR_CONFIGEN_BIT); - - udelay(2); - tmp = GT_READ(GT_PCI0_CFGDATA_OFS); - - tmp |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY | - PCI_COMMAND_MASTER | PCI_COMMAND_SERR); - GT_WRITE(GT_PCI0_CFGADDR_OFS, - (0 << GT_PCI0_CFGADDR_BUSNUM_SHF) | - (0 << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | - ((PCI_COMMAND / 4) << GT_PCI0_CFGADDR_REGNUM_SHF) | - GT_PCI0_CFGADDR_CONFIGEN_BIT); - udelay(2); - GT_WRITE(GT_PCI0_CFGDATA_OFS, tmp); - - /* Setup address */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, - (0 << GT_PCI0_CFGADDR_BUSNUM_SHF) | - (0 << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | - ((PCI_COMMAND / 4) << GT_PCI0_CFGADDR_REGNUM_SHF) | - GT_PCI0_CFGADDR_CONFIGEN_BIT); - - udelay(2); - tmp = GT_READ(GT_PCI0_CFGDATA_OFS); -} - -unsigned short get_gt_devid(void) -{ - u32 gt_devid; - - /* Figure out if this is a gt96100 or gt96100A */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, - (0 << GT_PCI0_CFGADDR_BUSNUM_SHF) | - (0 << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | - ((PCI_VENDOR_ID / 4) << GT_PCI0_CFGADDR_REGNUM_SHF) | - GT_PCI0_CFGADDR_CONFIGEN_BIT); - - udelay(4); - gt_devid = GT_READ(GT_PCI0_CFGDATA_OFS); - - return gt_devid >> 16; -}
diff --git a/arch/mips/galileo-boards/ev96100/time.c b/arch/mips/galileo-boards/ev96100/time.c deleted file mode 100644 index 8cbe842..0000000 --- a/arch/mips/galileo-boards/ev96100/time.c +++ /dev/null
@@ -1,88 +0,0 @@ -/* - * BRIEF MODULE DESCRIPTION - * Galileo EV96100 rtc routines. - * - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This file was derived from Carsten Langgaard's - * arch/mips/mips-boards/atlas/atlas_rtc.c. - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#include <linux/init.h> -#include <linux/kernel_stat.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/spinlock.h> -#include <linux/timex.h> - -#include <asm/mipsregs.h> -#include <asm/ptrace.h> -#include <asm/time.h> - - -#define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5) - -extern volatile unsigned long wall_jiffies; -unsigned long missed_heart_beats = 0; - -static unsigned long r4k_offset; /* Amount to increment compare reg each time */ -static unsigned long r4k_cur; /* What counter should be at next timer irq */ - -static inline void ack_r4ktimer(unsigned long newval) -{ - write_c0_compare(newval); -} - -/* - * There are a lot of conceptually broken versions of the MIPS timer interrupt - * handler floating around. This one is rather different, but the algorithm - * is probably more robust. - */ -void mips_timer_interrupt(struct pt_regs *regs) -{ - int irq = 7; /* FIX ME */ - - if (r4k_offset == 0) { - goto null; - } - - do { - kstat_this_cpu.irqs[irq]++; - do_timer(regs); -#ifndef CONFIG_SMP - update_process_times(user_mode(regs)); -#endif - r4k_cur += r4k_offset; - ack_r4ktimer(r4k_cur); - - } while (((unsigned long)read_c0_count() - - r4k_cur) < 0x7fffffff); - return; - -null: - ack_r4ktimer(0); -}
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index aa2caa6..9fbf843 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c
@@ -38,15 +38,40 @@ static void r39xx_wait(void) { - unsigned long cfg = read_c0_conf(); - write_c0_conf(cfg | TX39_CONF_HALT); + local_irq_disable(); + if (!need_resched()) + write_c0_conf(read_c0_conf() | TX39_CONF_HALT); + local_irq_enable(); } +/* + * There is a race when WAIT instruction executed with interrupt + * enabled. + * But it is implementation-dependent wheter the pipelie restarts when + * a non-enabled interrupt is requested. + */ static void r4k_wait(void) { - __asm__(".set\tmips3\n\t" - "wait\n\t" - ".set\tmips0"); + __asm__(" .set mips3 \n" + " wait \n" + " .set mips0 \n"); +} + +/* + * This variant is preferable as it allows testing need_resched and going to + * sleep depending on the outcome atomically. Unfortunately the "It is + * implementation-dependent whether the pipeline restarts when a non-enabled + * interrupt is requested" restriction in the MIPS32/MIPS64 architecture makes + * using this version a gamble. + */ +static void r4k_wait_irqoff(void) +{ + local_irq_disable(); + if (!need_resched()) + __asm__(" .set mips3 \n" + " wait \n" + " .set mips0 \n"); + local_irq_enable(); } /* The Au1xxx wait is available only if using 32khz counter or @@ -56,17 +81,17 @@ static void au1k_wait(void) { /* using the wait instruction makes CP0 counter unusable */ - __asm__(".set mips3\n\t" - "cache 0x14, 0(%0)\n\t" - "cache 0x14, 32(%0)\n\t" - "sync\n\t" - "nop\n\t" - "wait\n\t" - "nop\n\t" - "nop\n\t" - "nop\n\t" - "nop\n\t" - ".set mips0\n\t" + __asm__(" .set mips3 \n" + " cache 0x14, 0(%0) \n" + " cache 0x14, 32(%0) \n" + " sync \n" + " nop \n" + " wait \n" + " nop \n" + " nop \n" + " nop \n" + " nop \n" + " .set mips0 \n" : : "r" (au1k_wait)); } @@ -111,7 +136,6 @@ case CPU_NEVADA: case CPU_RM7000: case CPU_RM9000: - case CPU_TX49XX: case CPU_4KC: case CPU_4KEC: case CPU_4KSC: @@ -125,6 +149,10 @@ cpu_wait = r4k_wait; printk(" available.\n"); break; + case CPU_TX49XX: + cpu_wait = r4k_wait_irqoff; + printk(" available.\n"); + break; case CPU_AU1000: case CPU_AU1100: case CPU_AU1500:
diff --git a/arch/mips/kernel/irixsig.c b/arch/mips/kernel/irixsig.c index 676e868..2132485 100644 --- a/arch/mips/kernel/irixsig.c +++ b/arch/mips/kernel/irixsig.c
@@ -17,6 +17,7 @@ #include <asm/ptrace.h> #include <asm/uaccess.h> +#include <asm/unistd.h> #undef DEBUG_SIG @@ -172,11 +173,12 @@ return ret; } -asmlinkage int do_irix_signal(sigset_t *oldset, struct pt_regs *regs) +void do_irix_signal(struct pt_regs *regs) { struct k_sigaction ka; siginfo_t info; int signr; + sigset_t *oldset; /* * We want the common case to go fast, which is why we may in certain @@ -184,19 +186,28 @@ * if so. */ if (!user_mode(regs)) - return 1; + return; - if (try_to_freeze()) - goto no_signal; - - if (!oldset) + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + oldset = ¤t->saved_sigmask; + else oldset = ¤t->blocked; signr = get_signal_to_deliver(&info, &ka, regs, NULL); - if (signr > 0) - return handle_signal(signr, &info, &ka, oldset, regs); + if (signr > 0) { + /* Whee! Actually deliver the signal. */ + if (handle_signal(signr, &info, &ka, oldset, regs) == 0) { + /* a signal was successfully delivered; the saved + * sigmask will have been stored in the signal frame, + * and will be restored by sigreturn, so we can simply + * clear the TIF_RESTORE_SIGMASK flag */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + clear_thread_flag(TIF_RESTORE_SIGMASK); + } -no_signal: + return; + } + /* * Who's code doesn't conform to the restartable syscall convention * dies here!!! The li instruction, a single machine instruction, @@ -208,8 +219,22 @@ regs->regs[2] == ERESTARTNOINTR) { regs->cp0_epc -= 8; } + if (regs->regs[2] == ERESTART_RESTARTBLOCK) { + regs->regs[2] = __NR_restart_syscall; + regs->regs[7] = regs->regs[26]; + regs->cp0_epc -= 4; + } + regs->regs[0] = 0; /* Don't deal with this again. */ } - return 0; + + /* + * If there's no signal to deliver, we just put the saved sigmask + * back + */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) { + clear_thread_flag(TIF_RESTORE_SIGMASK); + sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + } } asmlinkage void @@ -298,6 +323,9 @@ int _unused0[2]; }; +#define SIG_SETMASK32 256 /* Goodie from SGI for BSD compatibility: + set only the low 32 bit of the sigset. */ + #ifdef DEBUG_SIG static inline void dump_sigact_irix5(struct sigact_irix5 *p) { @@ -413,7 +441,7 @@ asmlinkage int irix_sigsuspend(struct pt_regs *regs) { - sigset_t saveset, newset; + sigset_t newset; sigset_t __user *uset; uset = (sigset_t __user *) regs->regs[4]; @@ -422,18 +450,15 @@ sigdelsetmask(&newset, ~_BLOCKABLE); spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; + current->saved_sigmask = current->blocked; current->blocked = newset; recalc_sigpending(); spin_unlock_irq(¤t->sighand->siglock); - regs->regs[2] = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_irix_signal(&saveset, regs)) - return -EINTR; - } + current->state = TASK_INTERRUPTIBLE; + schedule(); + set_thread_flag(TIF_RESTORE_SIGMASK); + return -ERESTARTNOHAND; } /* hate hate hate... */
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index 450ac59..43b1162 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c
@@ -991,7 +991,7 @@ unsigned int __unused[4]; }; -#ifdef CONFIG_SYSCTL +#ifdef CONFIG_SYSCTL_SYSCALL asmlinkage long sys32_sysctl(struct sysctl_args32 __user *args) { @@ -1032,7 +1032,7 @@ return error; } -#endif /* CONFIG_SYSCTL */ +#endif /* CONFIG_SYSCTL_SYSCALL */ asmlinkage long sys32_newuname(struct new_utsname __user * name) { @@ -1296,9 +1296,3 @@ return do_fork(clone_flags, newsp, ®s, 0, parent_tidptr, child_tidptr); } - -extern asmlinkage void sys_set_thread_area(u32 addr); -asmlinkage void sys32_set_thread_area(u32 addr) -{ - sys_set_thread_area(AA(addr)); -}
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 7ab67f7..2613a0d 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c
@@ -273,104 +273,107 @@ return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, ®s, 0, NULL, NULL); } -static struct mips_frame_info { - void *func; - unsigned long func_size; - int frame_size; - int pc_offset; -} *schedule_frame, mfinfo[64]; -static int mfinfo_num; +/* + * + */ +struct mips_frame_info { + void *func; + unsigned long func_size; + int frame_size; + int pc_offset; +}; -static int __init get_frame_info(struct mips_frame_info *info) +static inline int is_ra_save_ins(union mips_instruction *ip) { - int i; - void *func = info->func; - union mips_instruction *ip = (union mips_instruction *)func; - info->pc_offset = -1; - info->frame_size = 0; - for (i = 0; i < 128; i++, ip++) { - /* if jal, jalr, jr, stop. */ - if (ip->j_format.opcode == jal_op || - (ip->r_format.opcode == spec_op && - (ip->r_format.func == jalr_op || - ip->r_format.func == jr_op))) - break; + /* sw / sd $ra, offset($sp) */ + return (ip->i_format.opcode == sw_op || ip->i_format.opcode == sd_op) && + ip->i_format.rs == 29 && + ip->i_format.rt == 31; +} - if (info->func_size && i >= info->func_size / 4) - break; - if ( -#ifdef CONFIG_32BIT - ip->i_format.opcode == addiu_op && -#endif -#ifdef CONFIG_64BIT - ip->i_format.opcode == daddiu_op && -#endif - ip->i_format.rs == 29 && - ip->i_format.rt == 29) { - /* addiu/daddiu sp,sp,-imm */ - if (info->frame_size) - continue; - info->frame_size = - ip->i_format.simmediate; - } +static inline int is_jal_jalr_jr_ins(union mips_instruction *ip) +{ + if (ip->j_format.opcode == jal_op) + return 1; + if (ip->r_format.opcode != spec_op) + return 0; + return ip->r_format.func == jalr_op || ip->r_format.func == jr_op; +} - if ( -#ifdef CONFIG_32BIT - ip->i_format.opcode == sw_op && -#endif -#ifdef CONFIG_64BIT - ip->i_format.opcode == sd_op && -#endif - ip->i_format.rs == 29 && - ip->i_format.rt == 31) { - /* sw / sd $ra, offset($sp) */ - if (info->pc_offset != -1) - continue; - info->pc_offset = - ip->i_format.simmediate / sizeof(long); - } - } - if (info->pc_offset == -1 || info->frame_size == 0) { - if (func == schedule) - printk("Can't analyze prologue code at %p\n", func); - info->pc_offset = -1; - info->frame_size = 0; - } - +static inline int is_sp_move_ins(union mips_instruction *ip) +{ + /* addiu/daddiu sp,sp,-imm */ + if (ip->i_format.rs != 29 || ip->i_format.rt != 29) + return 0; + if (ip->i_format.opcode == addiu_op || ip->i_format.opcode == daddiu_op) + return 1; return 0; } +static int get_frame_info(struct mips_frame_info *info) +{ + union mips_instruction *ip = info->func; + unsigned max_insns = info->func_size / sizeof(union mips_instruction); + unsigned i; + + info->pc_offset = -1; + info->frame_size = 0; + + if (!ip) + goto err; + + if (max_insns == 0) + max_insns = 128U; /* unknown function size */ + max_insns = min(128U, max_insns); + + for (i = 0; i < max_insns; i++, ip++) { + + if (is_jal_jalr_jr_ins(ip)) + break; + if (!info->frame_size) { + if (is_sp_move_ins(ip)) + info->frame_size = - ip->i_format.simmediate; + continue; + } + if (info->pc_offset == -1 && is_ra_save_ins(ip)) { + info->pc_offset = + ip->i_format.simmediate / sizeof(long); + break; + } + } + if (info->frame_size && info->pc_offset >= 0) /* nested */ + return 0; + if (info->pc_offset < 0) /* leaf */ + return 1; + /* prologue seems boggus... */ +err: + return -1; +} + +static struct mips_frame_info schedule_mfi __read_mostly; + static int __init frame_info_init(void) { - int i; + unsigned long size = 0; #ifdef CONFIG_KALLSYMS + unsigned long ofs; char *modname; char namebuf[KSYM_NAME_LEN + 1]; - unsigned long start, size, ofs; - extern char __sched_text_start[], __sched_text_end[]; - extern char __lock_text_start[], __lock_text_end[]; - start = (unsigned long)__sched_text_start; - for (i = 0; i < ARRAY_SIZE(mfinfo); i++) { - if (start == (unsigned long)schedule) - schedule_frame = &mfinfo[i]; - if (!kallsyms_lookup(start, &size, &ofs, &modname, namebuf)) - break; - mfinfo[i].func = (void *)(start + ofs); - mfinfo[i].func_size = size; - start += size - ofs; - if (start >= (unsigned long)__lock_text_end) - break; - if (start == (unsigned long)__sched_text_end) - start = (unsigned long)__lock_text_start; - } -#else - mfinfo[0].func = schedule; - schedule_frame = &mfinfo[0]; + kallsyms_lookup((unsigned long)schedule, &size, &ofs, &modname, namebuf); #endif - for (i = 0; i < ARRAY_SIZE(mfinfo) && mfinfo[i].func; i++) - get_frame_info(&mfinfo[i]); + schedule_mfi.func = schedule; + schedule_mfi.func_size = size; - mfinfo_num = i; + get_frame_info(&schedule_mfi); + + /* + * Without schedule() frame info, result given by + * thread_saved_pc() and get_wchan() are not reliable. + */ + if (schedule_mfi.pc_offset < 0) + printk("Can't analyze schedule() prologue at %p\n", schedule); + return 0; } @@ -386,54 +389,86 @@ /* New born processes are a special case */ if (t->reg31 == (unsigned long) ret_from_fork) return t->reg31; - - if (!schedule_frame || schedule_frame->pc_offset < 0) + if (schedule_mfi.pc_offset < 0) return 0; - return ((unsigned long *)t->reg29)[schedule_frame->pc_offset]; + return ((unsigned long *)t->reg29)[schedule_mfi.pc_offset]; } -/* get_wchan - a maintenance nightmare^W^Wpain in the ass ... */ -unsigned long get_wchan(struct task_struct *p) + +#ifdef CONFIG_KALLSYMS +/* used by show_backtrace() */ +unsigned long unwind_stack(struct task_struct *task, unsigned long *sp, + unsigned long pc, unsigned long ra) { unsigned long stack_page; - unsigned long pc; -#ifdef CONFIG_KALLSYMS - unsigned long frame; -#endif + struct mips_frame_info info; + char *modname; + char namebuf[KSYM_NAME_LEN + 1]; + unsigned long size, ofs; + int leaf; - if (!p || p == current || p->state == TASK_RUNNING) + stack_page = (unsigned long)task_stack_page(task); + if (!stack_page) return 0; - stack_page = (unsigned long)task_stack_page(p); - if (!stack_page || !mfinfo_num) + if (!kallsyms_lookup(pc, &size, &ofs, &modname, namebuf)) + return 0; + /* + * Return ra if an exception occured at the first instruction + */ + if (unlikely(ofs == 0)) + return ra; + + info.func = (void *)(pc - ofs); + info.func_size = ofs; /* analyze from start to ofs */ + leaf = get_frame_info(&info); + if (leaf < 0) return 0; - pc = thread_saved_pc(p); -#ifdef CONFIG_KALLSYMS - if (!in_sched_functions(pc)) - return pc; + if (*sp < stack_page || + *sp + info.frame_size > stack_page + THREAD_SIZE - 32) + return 0; - frame = p->thread.reg29 + schedule_frame->frame_size; - do { - int i; + if (leaf) + /* + * For some extreme cases, get_frame_info() can + * consider wrongly a nested function as a leaf + * one. In that cases avoid to return always the + * same value. + */ + pc = pc != ra ? ra : 0; + else + pc = ((unsigned long *)(*sp))[info.pc_offset]; - if (frame < stack_page || frame > stack_page + THREAD_SIZE - 32) - return 0; - - for (i = mfinfo_num - 1; i >= 0; i--) { - if (pc >= (unsigned long) mfinfo[i].func) - break; - } - if (i < 0) - break; - - pc = ((unsigned long *)frame)[mfinfo[i].pc_offset]; - if (!mfinfo[i].frame_size) - break; - frame += mfinfo[i].frame_size; - } while (in_sched_functions(pc)); + *sp += info.frame_size; + return __kernel_text_address(pc) ? pc : 0; +} #endif +/* + * get_wchan - a maintenance nightmare^W^Wpain in the ass ... + */ +unsigned long get_wchan(struct task_struct *task) +{ + unsigned long pc = 0; +#ifdef CONFIG_KALLSYMS + unsigned long sp; +#endif + + if (!task || task == current || task->state == TASK_RUNNING) + goto out; + if (!task_stack_page(task)) + goto out; + + pc = thread_saved_pc(task); + +#ifdef CONFIG_KALLSYMS + sp = task->thread.reg29 + schedule_mfi.frame_size; + + while (in_sched_functions(pc)) + pc = unwind_stack(task, &sp, pc, 0); +#endif + +out: return pc; } -
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index ba1bcd8..e717851 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S
@@ -662,6 +662,8 @@ sys sys_tee 4 sys sys_vmsplice 4 sys sys_move_pages 6 + sys sys_set_robust_list 2 + sys sys_get_robust_list 3 .endm /* We pre-compute the number of _instruction_ bytes needed to
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S index 939e172d..4c22d0b 100644 --- a/arch/mips/kernel/scall64-64.S +++ b/arch/mips/kernel/scall64-64.S
@@ -466,3 +466,5 @@ PTR sys_tee /* 5265 */ PTR sys_vmsplice PTR sys_move_pages + PTR sys_set_robust_list + PTR sys_get_robust_list
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 98abbc5..f25c2a2 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S
@@ -247,7 +247,7 @@ PTR sys_capset PTR sys32_rt_sigpending /* 6125 */ PTR compat_sys_rt_sigtimedwait - PTR sys_rt_sigqueueinfo + PTR sys32_rt_sigqueueinfo PTR sysn32_rt_sigsuspend PTR sys32_sigaltstack PTR compat_sys_utime /* 6130 */ @@ -390,5 +390,7 @@ PTR sys_splice PTR sys_sync_file_range PTR sys_tee - PTR sys_vmsplice /* 6271 */ + PTR sys_vmsplice /* 6270 */ PTR sys_move_pages + PTR compat_sys_set_robust_list + PTR compat_sys_get_robust_list
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 505c9ee..288ee4a 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S
@@ -498,7 +498,7 @@ PTR sys_mknodat /* 4290 */ PTR sys_fchownat PTR compat_sys_futimesat - PTR compat_sys_newfstatat + PTR sys_newfstatat PTR sys_unlinkat PTR sys_renameat /* 4295 */ PTR sys_linkat @@ -514,4 +514,6 @@ PTR sys_tee PTR sys_vmsplice PTR compat_sys_move_pages + PTR compat_sys_set_robust_list + PTR compat_sys_get_robust_list /* 4310 */ .size sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index 8c2b596..fdbb508 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c
@@ -10,29 +10,15 @@ * Copyright (C) 1999 Silicon Graphics, Inc. * Copyright (C) 2000 2001, 2002 Maciej W. Rozycki */ -#include <linux/errno.h> #include <linux/init.h> #include <linux/ioport.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/mm.h> #include <linux/module.h> -#include <linux/stddef.h> -#include <linux/string.h> -#include <linux/unistd.h> -#include <linux/slab.h> -#include <linux/user.h> -#include <linux/utsname.h> -#include <linux/a.out.h> #include <linux/screen_info.h> #include <linux/bootmem.h> #include <linux/initrd.h> -#include <linux/major.h> -#include <linux/kdev_t.h> #include <linux/root_dev.h> #include <linux/highmem.h> #include <linux/console.h> -#include <linux/mmzone.h> #include <linux/pfn.h> #include <asm/addrspace.h> @@ -96,6 +82,12 @@ int x = boot_mem_map.nr_map; struct boot_mem_map_entry *prev = boot_mem_map.map + x - 1; + /* Sanity check */ + if (start + size < start) { + printk("Trying to add an invalid memory region, skipped\n"); + return; + } + /* * Try to merge with previous entry if any. This is far less than * perfect but is sufficient for most real world cases. @@ -143,167 +135,132 @@ } } -static inline void parse_cmdline_early(void) +/* + * Manage initrd + */ +#ifdef CONFIG_BLK_DEV_INITRD + +static int __init rd_start_early(char *p) { - char c = ' ', *to = command_line, *from = saved_command_line; - unsigned long start_at, mem_size; - int len = 0; - int usermem = 0; - - printk("Determined physical RAM map:\n"); - print_memory_map(); - - for (;;) { - /* - * "mem=XXX[kKmM]" defines a memory region from - * 0 to <XXX>, overriding the determined size. - * "mem=XXX[KkmM]@YYY[KkmM]" defines a memory region from - * <YYY> to <YYY>+<XXX>, overriding the determined size. - */ - if (c == ' ' && !memcmp(from, "mem=", 4)) { - if (to != command_line) - to--; - /* - * If a user specifies memory size, we - * blow away any automatically generated - * size. - */ - if (usermem == 0) { - boot_mem_map.nr_map = 0; - usermem = 1; - } - mem_size = memparse(from + 4, &from); - if (*from == '@') - start_at = memparse(from + 1, &from); - else - start_at = 0; - add_memory_region(start_at, mem_size, BOOT_MEM_RAM); - } - c = *(from++); - if (!c) - break; - if (CL_SIZE <= ++len) - break; - *(to++) = c; - } - *to = '\0'; - - if (usermem) { - printk("User-defined physical RAM map:\n"); - print_memory_map(); - } -} - -static inline int parse_rd_cmdline(unsigned long* rd_start, unsigned long* rd_end) -{ - /* - * "rd_start=0xNNNNNNNN" defines the memory address of an initrd - * "rd_size=0xNN" it's size - */ - unsigned long start = 0; - unsigned long size = 0; - unsigned long end; - char cmd_line[CL_SIZE]; - char *start_str; - char *size_str; - char *tmp; - - strcpy(cmd_line, command_line); - *command_line = 0; - tmp = cmd_line; - /* Ignore "rd_start=" strings in other parameters. */ - start_str = strstr(cmd_line, "rd_start="); - if (start_str && start_str != cmd_line && *(start_str - 1) != ' ') - start_str = strstr(start_str, " rd_start="); - while (start_str) { - if (start_str != cmd_line) - strncat(command_line, tmp, start_str - tmp); - start = memparse(start_str + 9, &start_str); - tmp = start_str + 1; - start_str = strstr(start_str, " rd_start="); - } - if (*tmp) - strcat(command_line, tmp); - - strcpy(cmd_line, command_line); - *command_line = 0; - tmp = cmd_line; - /* Ignore "rd_size" strings in other parameters. */ - size_str = strstr(cmd_line, "rd_size="); - if (size_str && size_str != cmd_line && *(size_str - 1) != ' ') - size_str = strstr(size_str, " rd_size="); - while (size_str) { - if (size_str != cmd_line) - strncat(command_line, tmp, size_str - tmp); - size = memparse(size_str + 8, &size_str); - tmp = size_str + 1; - size_str = strstr(size_str, " rd_size="); - } - if (*tmp) - strcat(command_line, tmp); + unsigned long start = memparse(p, &p); #ifdef CONFIG_64BIT /* HACK: Guess if the sign extension was forgotten */ if (start > 0x0000000080000000 && start < 0x00000000ffffffff) start |= 0xffffffff00000000UL; #endif + initrd_start = start; + initrd_end += start; - end = start + size; - if (start && end) { - *rd_start = start; - *rd_end = end; - return 1; - } return 0; } +early_param("rd_start", rd_start_early); -#define MAXMEM HIGHMEM_START -#define MAXMEM_PFN PFN_DOWN(MAXMEM) - -static inline void bootmem_init(void) +static int __init rd_size_early(char *p) { - unsigned long start_pfn; - unsigned long reserved_end = (unsigned long)&_end; -#ifndef CONFIG_SGI_IP27 - unsigned long first_usable_pfn; - unsigned long bootmap_size; - int i; -#endif -#ifdef CONFIG_BLK_DEV_INITRD - int initrd_reserve_bootmem = 0; + initrd_end += memparse(p, &p); - /* Board specific code should have set up initrd_start and initrd_end */ - ROOT_DEV = Root_RAM0; - if (parse_rd_cmdline(&initrd_start, &initrd_end)) { - reserved_end = max(reserved_end, initrd_end); - initrd_reserve_bootmem = 1; - } else { - unsigned long tmp; - u32 *initrd_header; + return 0; +} +early_param("rd_size", rd_size_early); - tmp = ((reserved_end + PAGE_SIZE-1) & PAGE_MASK) - sizeof(u32) * 2; - if (tmp < reserved_end) - tmp += PAGE_SIZE; - initrd_header = (u32 *)tmp; - if (initrd_header[0] == 0x494E5244) { - initrd_start = (unsigned long)&initrd_header[2]; - initrd_end = initrd_start + initrd_header[1]; - reserved_end = max(reserved_end, initrd_end); - initrd_reserve_bootmem = 1; - } - } -#endif /* CONFIG_BLK_DEV_INITRD */ +static unsigned long __init init_initrd(void) +{ + unsigned long tmp, end, size; + u32 *initrd_header; + + ROOT_DEV = Root_RAM0; /* - * Partially used pages are not usable - thus - * we are rounding upwards. + * Board specific code or command line parser should have + * already set up initrd_start and initrd_end. In these cases + * perfom sanity checks and use them if all looks good. */ - start_pfn = PFN_UP(CPHYSADDR(reserved_end)); + size = initrd_end - initrd_start; + if (initrd_end == 0 || size == 0) { + initrd_start = 0; + initrd_end = 0; + } else + return initrd_end; -#ifndef CONFIG_SGI_IP27 - /* Find the highest page frame number we have available. */ - max_pfn = 0; - first_usable_pfn = -1UL; + end = (unsigned long)&_end; + tmp = PAGE_ALIGN(end) - sizeof(u32) * 2; + if (tmp < end) + tmp += PAGE_SIZE; + + initrd_header = (u32 *)tmp; + if (initrd_header[0] == 0x494E5244) { + initrd_start = (unsigned long)&initrd_header[2]; + initrd_end = initrd_start + initrd_header[1]; + } + return initrd_end; +} + +static void __init finalize_initrd(void) +{ + unsigned long size = initrd_end - initrd_start; + + if (size == 0) { + printk(KERN_INFO "Initrd not found or empty"); + goto disable; + } + if (CPHYSADDR(initrd_end) > PFN_PHYS(max_low_pfn)) { + printk("Initrd extends beyond end of memory"); + goto disable; + } + + reserve_bootmem(CPHYSADDR(initrd_start), size); + initrd_below_start_ok = 1; + + printk(KERN_INFO "Initial ramdisk at: 0x%lx (%lu bytes)\n", + initrd_start, size); + return; +disable: + printk(" - disabling initrd\n"); + initrd_start = 0; + initrd_end = 0; +} + +#else /* !CONFIG_BLK_DEV_INITRD */ + +#define init_initrd() 0 +#define finalize_initrd() do {} while (0) + +#endif + +/* + * Initialize the bootmem allocator. It also setup initrd related data + * if needed. + */ +#ifdef CONFIG_SGI_IP27 + +static void __init bootmem_init(void) +{ + init_initrd(); + finalize_initrd(); +} + +#else /* !CONFIG_SGI_IP27 */ + +static void __init bootmem_init(void) +{ + unsigned long reserved_end; + unsigned long highest = 0; + unsigned long mapstart = -1UL; + unsigned long bootmap_size; + int i; + + /* + * Init any data related to initrd. It's a nop if INITRD is + * not selected. Once that done we can determine the low bound + * of usable memory. + */ + reserved_end = init_initrd(); + reserved_end = PFN_UP(CPHYSADDR(max(reserved_end, (unsigned long)&_end))); + + /* + * Find the highest page frame number we have available. + */ for (i = 0; i < boot_mem_map.nr_map; i++) { unsigned long start, end; @@ -312,56 +269,38 @@ start = PFN_UP(boot_mem_map.map[i].addr); end = PFN_DOWN(boot_mem_map.map[i].addr - + boot_mem_map.map[i].size); + + boot_mem_map.map[i].size); - if (start >= end) + if (end > highest) + highest = end; + if (end <= reserved_end) continue; - if (end > max_pfn) - max_pfn = end; - if (start < first_usable_pfn) { - if (start > start_pfn) { - first_usable_pfn = start; - } else if (end > start_pfn) { - first_usable_pfn = start_pfn; - } - } + if (start >= mapstart) + continue; + mapstart = max(reserved_end, start); } /* * Determine low and high memory ranges */ - max_low_pfn = max_pfn; - if (max_low_pfn > MAXMEM_PFN) { - max_low_pfn = MAXMEM_PFN; -#ifndef CONFIG_HIGHMEM - /* Maximum memory usable is what is directly addressable */ - printk(KERN_WARNING "Warning only %ldMB will be used.\n", - MAXMEM >> 20); - printk(KERN_WARNING "Use a HIGHMEM enabled kernel.\n"); -#endif - } - + if (highest > PFN_DOWN(HIGHMEM_START)) { #ifdef CONFIG_HIGHMEM - /* - * Crude, we really should make a better attempt at detecting - * highstart_pfn - */ - highstart_pfn = highend_pfn = max_pfn; - if (max_pfn > MAXMEM_PFN) { - highstart_pfn = MAXMEM_PFN; - printk(KERN_NOTICE "%ldMB HIGHMEM available.\n", - (highend_pfn - highstart_pfn) >> (20 - PAGE_SHIFT)); - } + highstart_pfn = PFN_DOWN(HIGHMEM_START); + highend_pfn = highest; #endif + highest = PFN_DOWN(HIGHMEM_START); + } - /* Initialize the boot-time allocator with low memory only. */ - bootmap_size = init_bootmem(first_usable_pfn, max_low_pfn); + /* + * Initialize the boot-time allocator with low memory only. + */ + bootmap_size = init_bootmem(mapstart, highest); /* * Register fully available low RAM pages with the bootmem allocator. */ for (i = 0; i < boot_mem_map.nr_map; i++) { - unsigned long curr_pfn, last_pfn, size; + unsigned long start, end, size; /* * Reserve usable memory. @@ -369,85 +308,50 @@ if (boot_mem_map.map[i].type != BOOT_MEM_RAM) continue; - /* - * We are rounding up the start address of usable memory: - */ - curr_pfn = PFN_UP(boot_mem_map.map[i].addr); - if (curr_pfn >= max_low_pfn) - continue; - if (curr_pfn < start_pfn) - curr_pfn = start_pfn; - - /* - * ... and at the end of the usable range downwards: - */ - last_pfn = PFN_DOWN(boot_mem_map.map[i].addr + start = PFN_UP(boot_mem_map.map[i].addr); + end = PFN_DOWN(boot_mem_map.map[i].addr + boot_mem_map.map[i].size); - - if (last_pfn > max_low_pfn) - last_pfn = max_low_pfn; + /* + * We are rounding up the start address of usable memory + * and at the end of the usable range downwards. + */ + if (start >= max_low_pfn) + continue; + if (start < reserved_end) + start = reserved_end; + if (end > max_low_pfn) + end = max_low_pfn; /* - * Only register lowmem part of lowmem segment with bootmem. + * ... finally, is the area going away? */ - size = last_pfn - curr_pfn; - if (curr_pfn > PFN_DOWN(HIGHMEM_START)) + if (end <= start) continue; - if (curr_pfn + size - 1 > PFN_DOWN(HIGHMEM_START)) - size = PFN_DOWN(HIGHMEM_START) - curr_pfn; - if (!size) - continue; - - /* - * ... finally, did all the rounding and playing - * around just make the area go away? - */ - if (last_pfn <= curr_pfn) - continue; + size = end - start; /* Register lowmem ranges */ - free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(size)); - memory_present(0, curr_pfn, curr_pfn + size - 1); + free_bootmem(PFN_PHYS(start), size << PAGE_SHIFT); + memory_present(0, start, end); } - /* Reserve the bootmap memory. */ - reserve_bootmem(PFN_PHYS(first_usable_pfn), bootmap_size); -#endif /* CONFIG_SGI_IP27 */ + /* + * Reserve the bootmap memory. + */ + reserve_bootmem(PFN_PHYS(mapstart), bootmap_size); -#ifdef CONFIG_BLK_DEV_INITRD - initrd_below_start_ok = 1; - if (initrd_start) { - unsigned long initrd_size = ((unsigned char *)initrd_end) - - ((unsigned char *)initrd_start); - const int width = sizeof(long) * 2; - - printk("Initial ramdisk at: 0x%p (%lu bytes)\n", - (void *)initrd_start, initrd_size); - - if (CPHYSADDR(initrd_end) > PFN_PHYS(max_low_pfn)) { - printk("initrd extends beyond end of memory " - "(0x%0*Lx > 0x%0*Lx)\ndisabling initrd\n", - width, - (unsigned long long) CPHYSADDR(initrd_end), - width, - (unsigned long long) PFN_PHYS(max_low_pfn)); - initrd_start = initrd_end = 0; - initrd_reserve_bootmem = 0; - } - - if (initrd_reserve_bootmem) - reserve_bootmem(CPHYSADDR(initrd_start), initrd_size); - } -#endif /* CONFIG_BLK_DEV_INITRD */ + /* + * Reserve initrd memory if needed. + */ + finalize_initrd(); } +#endif /* CONFIG_SGI_IP27 */ + /* * arch_mem_init - initialize memory managment subsystem * * o plat_mem_setup() detects the memory configuration and will record detected * memory areas using add_memory_region. - * o parse_cmdline_early() parses the command line for mem= options which, - * iff detected, will override the results of the automatic detection. * * At this stage the memory configuration of the system is known to the * kernel but generic memory managment system is still entirely uninitialized. @@ -465,25 +369,59 @@ * initialization hook for anything else was introduced. */ -extern void plat_mem_setup(void); +static int usermem __initdata = 0; + +static int __init early_parse_mem(char *p) +{ + unsigned long start, size; + + /* + * If a user specifies memory size, we + * blow away any automatically generated + * size. + */ + if (usermem == 0) { + boot_mem_map.nr_map = 0; + usermem = 1; + } + start = 0; + size = memparse(p, &p); + if (*p == '@') + start = memparse(p + 1, &p); + + add_memory_region(start, size, BOOT_MEM_RAM); + return 0; +} +early_param("mem", early_parse_mem); static void __init arch_mem_init(char **cmdline_p) { + extern void plat_mem_setup(void); + /* call board setup routine */ plat_mem_setup(); + printk("Determined physical RAM map:\n"); + print_memory_map(); + strlcpy(command_line, arcs_cmdline, sizeof(command_line)); strlcpy(saved_command_line, command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; - parse_cmdline_early(); + parse_early_param(); + + if (usermem) { + printk("User-defined physical RAM map:\n"); + print_memory_map(); + } + bootmem_init(); sparse_init(); paging_init(); } -static inline void resource_init(void) +static void __init resource_init(void) { int i; @@ -504,10 +442,10 @@ start = boot_mem_map.map[i].addr; end = boot_mem_map.map[i].addr + boot_mem_map.map[i].size - 1; - if (start >= MAXMEM) + if (start >= HIGHMEM_START) continue; - if (end >= MAXMEM) - end = MAXMEM - 1; + if (end >= HIGHMEM_START) + end = HIGHMEM_START - 1; res = alloc_bootmem(sizeof(struct resource)); switch (boot_mem_map.map[i].type) { @@ -536,9 +474,6 @@ } } -#undef MAXMEM -#undef MAXMEM_PFN - void __init setup_arch(char **cmdline_p) { cpu_probe();
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index 6b4d9be..b9d358e 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c
@@ -424,15 +424,11 @@ if (!user_mode(regs)) return; - if (try_to_freeze()) - goto no_signal; - if (test_thread_flag(TIF_RESTORE_SIGMASK)) oldset = ¤t->saved_sigmask; else oldset = ¤t->blocked; - signr = get_signal_to_deliver(&info, &ka, regs, NULL); if (signr > 0) { /* Whee! Actually deliver the signal. */ @@ -446,9 +442,10 @@ if (test_thread_flag(TIF_RESTORE_SIGMASK)) clear_thread_flag(TIF_RESTORE_SIGMASK); } + + return; } -no_signal: /* * Who's code doesn't conform to the restartable syscall convention * dies here!!! The li instruction, a single machine instruction, @@ -466,6 +463,7 @@ regs->regs[7] = regs->regs[26]; regs->cp0_epc -= 4; } + regs->regs[0] = 0; /* Don't deal with this again. */ } /*
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c index f32a229..c86a5dd 100644 --- a/arch/mips/kernel/signal32.c +++ b/arch/mips/kernel/signal32.c
@@ -815,9 +815,6 @@ if (!user_mode(regs)) return; - if (try_to_freeze()) - goto no_signal; - if (test_thread_flag(TIF_RESTORE_SIGMASK)) oldset = ¤t->saved_sigmask; else @@ -836,9 +833,10 @@ if (test_thread_flag(TIF_RESTORE_SIGMASK)) clear_thread_flag(TIF_RESTORE_SIGMASK); } + + return; } -no_signal: /* * Who's code doesn't conform to the restartable syscall convention * dies here!!! The li instruction, a single machine instruction, @@ -856,6 +854,7 @@ regs->regs[7] = regs->regs[26]; regs->cp0_epc -= 4; } + regs->regs[0] = 0; /* Don't deal with this again. */ } /*
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c index 93429a4..766253c 100644 --- a/arch/mips/kernel/smp-mt.c +++ b/arch/mips/kernel/smp-mt.c
@@ -203,7 +203,7 @@ write_vpe_c0_config( read_c0_config()); /* make sure there are no software interrupts pending */ - write_vpe_c0_cause(read_vpe_c0_cause() & ~(C_SW1|C_SW0)); + write_vpe_c0_cause(0); /* Propagate Config7 */ write_vpe_c0_config7(read_c0_config7());
diff --git a/arch/mips/kernel/smtc-asm.S b/arch/mips/kernel/smtc-asm.S index 4cc3dea..76cb31d 100644 --- a/arch/mips/kernel/smtc-asm.S +++ b/arch/mips/kernel/smtc-asm.S
@@ -8,7 +8,7 @@ #include <asm/regdef.h> #include <asm/asmmacro.h> #include <asm/stackframe.h> -#include <asm/stackframe.h> +#include <asm/irqflags.h> /* * "Software Interrupt" linkage.
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c index 0721314..9951240 100644 --- a/arch/mips/kernel/syscall.c +++ b/arch/mips/kernel/syscall.c
@@ -263,7 +263,7 @@ return error; } -void sys_set_thread_area(unsigned long addr) +asmlinkage int sys_set_thread_area(unsigned long addr) { struct thread_info *ti = task_thread_info(current); @@ -271,6 +271,8 @@ /* If some future MIPS implementation has this register in hardware, * we will need to update it here (and in context switches). */ + + return 0; } asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 954a198..e51d8fd 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c
@@ -20,6 +20,7 @@ #include <linux/spinlock.h> #include <linux/kallsyms.h> #include <linux/bootmem.h> +#include <linux/interrupt.h> #include <asm/bootinfo.h> #include <asm/branch.h> @@ -72,28 +73,68 @@ void (*board_ejtag_handler_setup)(void); void (*board_bind_eic_interrupt)(int irq, int regset); -/* - * These constant is for searching for possible module text segments. - * MODULE_RANGE is a guess of how much space is likely to be vmalloced. - */ -#define MODULE_RANGE (8*1024*1024) + +static void show_raw_backtrace(unsigned long reg29) +{ + unsigned long *sp = (unsigned long *)reg29; + unsigned long addr; + + printk("Call Trace:"); +#ifdef CONFIG_KALLSYMS + printk("\n"); +#endif + while (!kstack_end(sp)) { + addr = *sp++; + if (__kernel_text_address(addr)) + print_ip_sym(addr); + } + printk("\n"); +} + +#ifdef CONFIG_KALLSYMS +static int raw_show_trace; +static int __init set_raw_show_trace(char *str) +{ + raw_show_trace = 1; + return 1; +} +__setup("raw_show_trace", set_raw_show_trace); + +extern unsigned long unwind_stack(struct task_struct *task, unsigned long *sp, + unsigned long pc, unsigned long ra); + +static void show_backtrace(struct task_struct *task, struct pt_regs *regs) +{ + unsigned long sp = regs->regs[29]; + unsigned long ra = regs->regs[31]; + unsigned long pc = regs->cp0_epc; + + if (raw_show_trace || !__kernel_text_address(pc)) { + show_raw_backtrace(sp); + return; + } + printk("Call Trace:\n"); + do { + print_ip_sym(pc); + pc = unwind_stack(task, &sp, pc, ra); + ra = 0; + } while (pc); + printk("\n"); +} +#else +#define show_backtrace(task, r) show_raw_backtrace((r)->regs[29]); +#endif /* * This routine abuses get_user()/put_user() to reference pointers * with at least a bit of error checking ... */ -void show_stack(struct task_struct *task, unsigned long *sp) +static void show_stacktrace(struct task_struct *task, struct pt_regs *regs) { const int field = 2 * sizeof(unsigned long); long stackdata; int i; - - if (!sp) { - if (task && task != current) - sp = (unsigned long *) task->thread.reg29; - else - sp = (unsigned long *) &sp; - } + unsigned long *sp = (unsigned long *)regs->regs[29]; printk("Stack :"); i = 0; @@ -114,32 +155,48 @@ i++; } printk("\n"); + show_backtrace(task, regs); } -void show_trace(struct task_struct *task, unsigned long *stack) +static __always_inline void prepare_frametrace(struct pt_regs *regs) { - const int field = 2 * sizeof(unsigned long); - unsigned long addr; - - if (!stack) { - if (task && task != current) - stack = (unsigned long *) task->thread.reg29; - else - stack = (unsigned long *) &stack; - } - - printk("Call Trace:"); -#ifdef CONFIG_KALLSYMS - printk("\n"); + __asm__ __volatile__( + ".set push\n\t" + ".set noat\n\t" +#ifdef CONFIG_64BIT + "1: dla $1, 1b\n\t" + "sd $1, %0\n\t" + "sd $29, %1\n\t" + "sd $31, %2\n\t" +#else + "1: la $1, 1b\n\t" + "sw $1, %0\n\t" + "sw $29, %1\n\t" + "sw $31, %2\n\t" #endif - while (!kstack_end(stack)) { - addr = *stack++; - if (__kernel_text_address(addr)) { - printk(" [<%0*lx>] ", field, addr); - print_symbol("%s\n", addr); + ".set pop\n\t" + : "=m" (regs->cp0_epc), + "=m" (regs->regs[29]), "=m" (regs->regs[31]) + : : "memory"); +} + +void show_stack(struct task_struct *task, unsigned long *sp) +{ + struct pt_regs regs; + if (sp) { + regs.regs[29] = (unsigned long)sp; + regs.regs[31] = 0; + regs.cp0_epc = 0; + } else { + if (task && task != current) { + regs.regs[29] = task->thread.reg29; + regs.regs[31] = 0; + regs.cp0_epc = task->thread.reg31; + } else { + prepare_frametrace(®s); } } - printk("\n"); + show_stacktrace(task, ®s); } /* @@ -147,9 +204,15 @@ */ void dump_stack(void) { - unsigned long stack; + struct pt_regs regs; - show_trace(current, &stack); + /* + * Remove any garbage that may be in regs (specially func + * addresses) to avoid show_raw_backtrace() to report them + */ + memset(®s, 0, sizeof(regs)); + prepare_frametrace(®s); + show_backtrace(current, ®s); } EXPORT_SYMBOL(dump_stack); @@ -268,8 +331,7 @@ print_modules(); printk("Process %s (pid: %d, threadinfo=%p, task=%p)\n", current->comm, current->pid, current_thread_info(), current); - show_stack(current, (long *) regs->regs[29]); - show_trace(current, (long *) regs->regs[29]); + show_stacktrace(current, regs); show_code((unsigned int *) regs->cp0_epc); printk("\n"); } @@ -292,6 +354,16 @@ printk("%s[#%d]:\n", str, ++die_counter); show_registers(regs); spin_unlock_irq(&die_lock); + + if (in_interrupt()) + panic("Fatal exception in interrupt"); + + if (panic_on_oops) { + printk(KERN_EMERG "Fatal exception: panic in 5 seconds\n"); + ssleep(5); + panic("Fatal exception"); + } + do_exit(SIGSEGV); }
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 9ee0ec2..51ddd21 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c
@@ -768,10 +768,16 @@ */ write_tc_c0_tcbind((read_tc_c0_tcbind() & ~TCBIND_CURVPE) | v->minor); + write_vpe_c0_vpeconf0(read_vpe_c0_vpeconf0() & ~(VPECONF0_VPA)); + + back_to_back_c0_hazard(); + /* Set up the XTC bit in vpeconf0 to point at our tc */ write_vpe_c0_vpeconf0( (read_vpe_c0_vpeconf0() & ~(VPECONF0_XTC)) | (t->index << VPECONF0_XTC_SHIFT)); + back_to_back_c0_hazard(); + /* enable this VPE */ write_vpe_c0_vpeconf0(read_vpe_c0_vpeconf0() | VPECONF0_VPA);
diff --git a/arch/mips/mips-boards/atlas/atlas_int.c b/arch/mips/mips-boards/atlas/atlas_int.c index fb25e03..a020a3c 100644 --- a/arch/mips/mips-boards/atlas/atlas_int.c +++ b/arch/mips/mips-boards/atlas/atlas_int.c
@@ -1,6 +1,8 @@ /* - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. + * Copyright (C) 1999, 2000, 2006 MIPS Technologies, Inc. + * All rights reserved. + * Authors: Carsten Langgaard <carstenl@mips.com> + * Maciej W. Rozycki <macro@mips.com> * * ######################################################################## * @@ -25,17 +27,20 @@ */ #include <linux/compiler.h> #include <linux/init.h> +#include <linux/irq.h> #include <linux/sched.h> #include <linux/slab.h> #include <linux/interrupt.h> #include <linux/kernel_stat.h> -#include <asm/irq.h> +#include <asm/gdb-stub.h> #include <asm/io.h> +#include <asm/irq_cpu.h> +#include <asm/msc01_ic.h> + #include <asm/mips-boards/atlas.h> #include <asm/mips-boards/atlasint.h> -#include <asm/gdb-stub.h> - +#include <asm/mips-boards/generic.h> static struct atlas_ictrl_regs *atlas_hw0_icregs; @@ -47,13 +52,13 @@ void disable_atlas_irq(unsigned int irq_nr) { - atlas_hw0_icregs->intrsten = (1 << (irq_nr-ATLASINT_BASE)); + atlas_hw0_icregs->intrsten = 1 << (irq_nr - ATLAS_INT_BASE); iob(); } void enable_atlas_irq(unsigned int irq_nr) { - atlas_hw0_icregs->intseten = (1 << (irq_nr-ATLASINT_BASE)); + atlas_hw0_icregs->intseten = 1 << (irq_nr - ATLAS_INT_BASE); iob(); } @@ -107,7 +112,7 @@ if (unlikely(int_status == 0)) return; - irq = ATLASINT_BASE + ls1bit32(int_status); + irq = ATLAS_INT_BASE + ls1bit32(int_status); DEBUG_INT("atlas_hw0_irqdispatch: irq=%d\n", irq); @@ -161,15 +166,14 @@ } /* - * IRQs on the Atlas board look basically (barring software IRQs which we - * don't use at all and all external interrupt sources are combined together - * on hardware interrupt 0 (MIPS IRQ 2)) like: + * IRQs on the Atlas board look basically like (all external interrupt + * sources are combined together on hardware interrupt 0 (MIPS IRQ 2)): * - * MIPS IRQ Source + * MIPS IRQ Source * -------- ------ - * 0 Software (ignored) - * 1 Software (ignored) - * 2 Combined hardware interrupt (hw0) + * 0 Software 0 (reschedule IPI on MT) + * 1 Software 1 (remote call IPI on MT) + * 2 Combined Atlas hardware interrupt (hw0) * 3 Hardware (ignored) * 4 Hardware (ignored) * 5 Hardware (ignored) @@ -179,7 +183,7 @@ * We handle the IRQ according to _our_ priority which is: * * Highest ---- R4k Timer - * Lowest ---- Combined hardware interrupt + * Lowest ---- Software 0 * * then we just return, if multiple IRQs are pending then we will just take * another exception, big deal. @@ -193,17 +197,19 @@ if (irq == MIPSCPU_INT_ATLAS) atlas_hw0_irqdispatch(regs); - else if (irq > 0) + else if (irq >= 0) do_IRQ(MIPSCPU_INT_BASE + irq, regs); else spurious_interrupt(regs); } -void __init arch_init_irq(void) +static inline void init_atlas_irqs (int base) { int i; - atlas_hw0_icregs = (struct atlas_ictrl_regs *)ioremap (ATLAS_ICTRL_REGS_BASE, sizeof(struct atlas_ictrl_regs *)); + atlas_hw0_icregs = (struct atlas_ictrl_regs *) + ioremap(ATLAS_ICTRL_REGS_BASE, + sizeof(struct atlas_ictrl_regs *)); /* * Mask out all interrupt by writing "1" to all bit position in @@ -211,7 +217,7 @@ */ atlas_hw0_icregs->intrsten = 0xffffffff; - for (i = ATLASINT_BASE; i <= ATLASINT_END; i++) { + for (i = ATLAS_INT_BASE; i <= ATLAS_INT_END; i++) { irq_desc[i].status = IRQ_DISABLED; irq_desc[i].action = 0; irq_desc[i].depth = 1; @@ -219,3 +225,62 @@ spin_lock_init(&irq_desc[i].lock); } } + +static struct irqaction atlasirq = { + .handler = no_action, + .name = "Atlas cascade" +}; + +msc_irqmap_t __initdata msc_irqmap[] = { + {MSC01C_INT_TMR, MSC01_IRQ_EDGE, 0}, + {MSC01C_INT_PCI, MSC01_IRQ_LEVEL, 0}, +}; +int __initdata msc_nr_irqs = sizeof(msc_irqmap) / sizeof(*msc_irqmap); + +msc_irqmap_t __initdata msc_eicirqmap[] = { + {MSC01E_INT_SW0, MSC01_IRQ_LEVEL, 0}, + {MSC01E_INT_SW1, MSC01_IRQ_LEVEL, 0}, + {MSC01E_INT_ATLAS, MSC01_IRQ_LEVEL, 0}, + {MSC01E_INT_TMR, MSC01_IRQ_EDGE, 0}, + {MSC01E_INT_PCI, MSC01_IRQ_LEVEL, 0}, + {MSC01E_INT_PERFCTR, MSC01_IRQ_LEVEL, 0}, + {MSC01E_INT_CPUCTR, MSC01_IRQ_LEVEL, 0} +}; +int __initdata msc_nr_eicirqs = sizeof(msc_eicirqmap) / sizeof(*msc_eicirqmap); + +void __init arch_init_irq(void) +{ + init_atlas_irqs(ATLAS_INT_BASE); + + if (!cpu_has_veic) + mips_cpu_irq_init(MIPSCPU_INT_BASE); + + switch(mips_revision_corid) { + case MIPS_REVISION_CORID_CORE_MSC: + case MIPS_REVISION_CORID_CORE_FPGA2: + case MIPS_REVISION_CORID_CORE_FPGA3: + case MIPS_REVISION_CORID_CORE_24K: + case MIPS_REVISION_CORID_CORE_EMUL_MSC: + if (cpu_has_veic) + init_msc_irqs (MSC01E_INT_BASE, + msc_eicirqmap, msc_nr_eicirqs); + else + init_msc_irqs (MSC01C_INT_BASE, + msc_irqmap, msc_nr_irqs); + } + + + if (cpu_has_veic) { + set_vi_handler (MSC01E_INT_ATLAS, atlas_hw0_irqdispatch); + setup_irq (MSC01E_INT_BASE + MSC01E_INT_ATLAS, &atlasirq); + } else if (cpu_has_vint) { + set_vi_handler (MIPSCPU_INT_ATLAS, atlas_hw0_irqdispatch); +#ifdef CONFIG_MIPS_MT_SMTC + setup_irq_smtc (MIPSCPU_INT_BASE + MIPSCPU_INT_ATLAS, + &atlasirq, (0x100 << MIPSCPU_INT_ATLAS)); +#else /* Not SMTC */ + setup_irq(MIPSCPU_INT_BASE + MIPSCPU_INT_ATLAS, &atlasirq); +#endif /* CONFIG_MIPS_MT_SMTC */ + } else + setup_irq(MIPSCPU_INT_BASE + MIPSCPU_INT_ATLAS, &atlasirq); +}
diff --git a/arch/mips/mips-boards/atlas/atlas_setup.c b/arch/mips/mips-boards/atlas/atlas_setup.c index 9871a91..0c6b0ce 100644 --- a/arch/mips/mips-boards/atlas/atlas_setup.c +++ b/arch/mips/mips-boards/atlas/atlas_setup.c
@@ -77,7 +77,7 @@ #else s.iobase = ATLAS_UART_REGS_BASE+3; #endif - s.irq = ATLASINT_UART; + s.irq = ATLAS_INT_UART; s.uartclk = ATLAS_BASE_BAUD * 16; s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ; s.iotype = UPIO_PORT;
diff --git a/arch/mips/mips-boards/generic/time.c b/arch/mips/mips-boards/generic/time.c index 557bf96..8d15861 100644 --- a/arch/mips/mips-boards/generic/time.c +++ b/arch/mips/mips-boards/generic/time.c
@@ -41,8 +41,13 @@ #include <asm/mips-boards/generic.h> #include <asm/mips-boards/prom.h> + +#ifdef CONFIG_MIPS_ATLAS +#include <asm/mips-boards/atlasint.h> +#endif +#ifdef CONFIG_MIPS_MALTA #include <asm/mips-boards/maltaint.h> -#include <asm/mc146818-time.h> +#endif unsigned long cpu_khz; @@ -92,10 +97,9 @@ irqreturn_t mips_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) { int cpu = smp_processor_id(); - int r2 = cpu_has_mips_r2; #ifdef CONFIG_MIPS_MT_SMTC - /* + /* * In an SMTC system, one Count/Compare set exists per VPE. * Which TC within a VPE gets the interrupt is essentially * random - we only know that it shouldn't be one with @@ -108,29 +112,46 @@ * the general MIPS timer_interrupt routine. */ + int vpflags; + /* - * DVPE is necessary so long as cross-VPE interrupts - * are done via read-modify-write of Cause register. + * We could be here due to timer interrupt, + * perf counter overflow, or both. */ - int vpflags = dvpe(); - write_c0_compare (read_c0_count() - 1); - clear_c0_cause(CPUCTR_IMASKBIT); - evpe(vpflags); + if (read_c0_cause() & (1 << 26)) + perf_irq(regs); - if (cpu_data[cpu].vpe_id == 0) { - timer_interrupt(irq, dev_id, regs); - scroll_display_message(); - } else - write_c0_compare (read_c0_count() + ( mips_hpt_frequency/HZ)); - smtc_timer_broadcast(cpu_data[cpu].vpe_id); - - if (cpu != 0) + if (read_c0_cause() & (1 << 30)) { + /* If timer interrupt, make it de-assert */ + write_c0_compare (read_c0_count() - 1); /* - * Other CPUs should do profiling and process accounting + * DVPE is necessary so long as cross-VPE interrupts + * are done via read-modify-write of Cause register. */ - local_timer_interrupt(irq, dev_id, regs); - + vpflags = dvpe(); + clear_c0_cause(CPUCTR_IMASKBIT); + evpe(vpflags); + /* + * There are things we only want to do once per tick + * in an "MP" system. One TC of each VPE will take + * the actual timer interrupt. The others will get + * timer broadcast IPIs. We use whoever it is that takes + * the tick on VPE 0 to run the full timer_interrupt(). + */ + if (cpu_data[cpu].vpe_id == 0) { + timer_interrupt(irq, NULL, regs); + smtc_timer_broadcast(cpu_data[cpu].vpe_id); + scroll_display_message(); + } else { + write_c0_compare(read_c0_count() + + (mips_hpt_frequency/HZ)); + local_timer_interrupt(irq, dev_id, regs); + smtc_timer_broadcast(cpu_data[cpu].vpe_id); + } + } #else /* CONFIG_MIPS_MT_SMTC */ + int r2 = cpu_has_mips_r2; + if (cpu == 0) { /* * CPU 0 handles the global timer interrupt job and process @@ -161,9 +182,8 @@ */ local_timer_interrupt(irq, dev_id, regs); } -#endif /* CONFIG_MIPS_MT_SMTC */ - out: +#endif /* CONFIG_MIPS_MT_SMTC */ return IRQ_HANDLED; }
diff --git a/arch/mips/mm/c-r3k.c b/arch/mips/mm/c-r3k.c index bb041a2..e1f35ef 100644 --- a/arch/mips/mm/c-r3k.c +++ b/arch/mips/mm/c-r3k.c
@@ -335,7 +335,7 @@ flush_cache_mm = r3k_flush_cache_mm; flush_cache_range = r3k_flush_cache_range; flush_cache_page = r3k_flush_cache_page; - flush_icache_page = r3k_flush_icache_page; + __flush_icache_page = r3k_flush_icache_page; flush_icache_range = r3k_flush_icache_range; flush_cache_sigtramp = r3k_flush_cache_sigtramp;
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 069803f..0b2da53 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c
@@ -89,7 +89,7 @@ blast_dcache32_page(addr); } -static inline void r4k_blast_dcache_page_setup(void) +static void __init r4k_blast_dcache_page_setup(void) { unsigned long dc_lsize = cpu_dcache_line_size(); @@ -103,7 +103,7 @@ static void (* r4k_blast_dcache_page_indexed)(unsigned long addr); -static inline void r4k_blast_dcache_page_indexed_setup(void) +static void __init r4k_blast_dcache_page_indexed_setup(void) { unsigned long dc_lsize = cpu_dcache_line_size(); @@ -117,7 +117,7 @@ static void (* r4k_blast_dcache)(void); -static inline void r4k_blast_dcache_setup(void) +static void __init r4k_blast_dcache_setup(void) { unsigned long dc_lsize = cpu_dcache_line_size(); @@ -202,7 +202,7 @@ static void (* r4k_blast_icache_page)(unsigned long addr); -static inline void r4k_blast_icache_page_setup(void) +static void __init r4k_blast_icache_page_setup(void) { unsigned long ic_lsize = cpu_icache_line_size(); @@ -219,7 +219,7 @@ static void (* r4k_blast_icache_page_indexed)(unsigned long addr); -static inline void r4k_blast_icache_page_indexed_setup(void) +static void __init r4k_blast_icache_page_indexed_setup(void) { unsigned long ic_lsize = cpu_icache_line_size(); @@ -243,7 +243,7 @@ static void (* r4k_blast_icache)(void); -static inline void r4k_blast_icache_setup(void) +static void __init r4k_blast_icache_setup(void) { unsigned long ic_lsize = cpu_icache_line_size(); @@ -264,7 +264,7 @@ static void (* r4k_blast_scache_page)(unsigned long addr); -static inline void r4k_blast_scache_page_setup(void) +static void __init r4k_blast_scache_page_setup(void) { unsigned long sc_lsize = cpu_scache_line_size(); @@ -282,7 +282,7 @@ static void (* r4k_blast_scache_page_indexed)(unsigned long addr); -static inline void r4k_blast_scache_page_indexed_setup(void) +static void __init r4k_blast_scache_page_indexed_setup(void) { unsigned long sc_lsize = cpu_scache_line_size(); @@ -300,7 +300,7 @@ static void (* r4k_blast_scache)(void); -static inline void r4k_blast_scache_setup(void) +static void __init r4k_blast_scache_setup(void) { unsigned long sc_lsize = cpu_scache_line_size(); @@ -475,7 +475,7 @@ } } if (exec) { - if (cpu_has_vtag_icache) { + if (cpu_has_vtag_icache && mm == current->active_mm) { int cpu = smp_processor_id(); if (cpu_context(cpu, mm) != 0) @@ -599,7 +599,7 @@ * We're not sure of the virtual address(es) involved here, so * we have to flush the entire I-cache. */ - if (cpu_has_vtag_icache) { + if (cpu_has_vtag_icache && vma->vm_mm == current->active_mm) { int cpu = smp_processor_id(); if (cpu_context(cpu, vma->vm_mm) != 0) @@ -1221,7 +1221,7 @@ } } -static inline void coherency_setup(void) +static void __init coherency_setup(void) { change_c0_config(CONF_CM_CMASK, CONF_CM_DEFAULT); @@ -1242,7 +1242,7 @@ clear_c0_config(CONF_CU); break; /* - * We need to catch the ealry Alchemy SOCs with + * We need to catch the early Alchemy SOCs with * the write-only co_config.od bit and set it back to one... */ case CPU_AU1000: /* rev. DA, HA, HB */ @@ -1291,7 +1291,7 @@ __flush_cache_all = r4k___flush_cache_all; flush_cache_mm = r4k_flush_cache_mm; flush_cache_page = r4k_flush_cache_page; - flush_icache_page = r4k_flush_icache_page; + __flush_icache_page = r4k_flush_icache_page; flush_cache_range = r4k_flush_cache_range; flush_cache_sigtramp = r4k_flush_cache_sigtramp;
diff --git a/arch/mips/mm/c-sb1.c b/arch/mips/mm/c-sb1.c index 2d71efb..16bad7c 100644 --- a/arch/mips/mm/c-sb1.c +++ b/arch/mips/mm/c-sb1.c
@@ -155,6 +155,26 @@ } /* + * Invalidate a range of the icache. The addresses are virtual, and + * the cache is virtually indexed and tagged. However, we don't + * necessarily have the right ASID context, so use index ops instead + * of hit ops. + */ +static inline void __sb1_flush_icache_range(unsigned long start, + unsigned long end) +{ + start &= ~(icache_line_size - 1); + end = (end + icache_line_size - 1) & ~(icache_line_size - 1); + + while (start != end) { + cache_set_op(Index_Invalidate_I, start & icache_index_mask); + start += icache_line_size; + } + mispredict(); + sync(); +} + +/* * Flush the icache for a given physical page. Need to writeback the * dcache first, then invalidate the icache. If the page isn't * executable, nothing is required. @@ -173,8 +193,11 @@ /* * Bumping the ASID is probably cheaper than the flush ... */ - if (cpu_context(cpu, vma->vm_mm) != 0) - drop_mmu_context(vma->vm_mm, cpu); + if (vma->vm_mm == current->active_mm) { + if (cpu_context(cpu, vma->vm_mm) != 0) + drop_mmu_context(vma->vm_mm, cpu); + } else + __sb1_flush_icache_range(addr, addr + PAGE_SIZE); } #ifdef CONFIG_SMP @@ -210,26 +233,6 @@ __attribute__((alias("local_sb1_flush_cache_page"))); #endif -/* - * Invalidate a range of the icache. The addresses are virtual, and - * the cache is virtually indexed and tagged. However, we don't - * necessarily have the right ASID context, so use index ops instead - * of hit ops. - */ -static inline void __sb1_flush_icache_range(unsigned long start, - unsigned long end) -{ - start &= ~(icache_line_size - 1); - end = (end + icache_line_size - 1) & ~(icache_line_size - 1); - - while (start != end) { - cache_set_op(Index_Invalidate_I, start & icache_index_mask); - start += icache_line_size; - } - mispredict(); - sync(); -} - /* * Invalidate all caches on this CPU @@ -326,9 +329,12 @@ * If there's a context, bump the ASID (cheaper than a flush, * since we don't know VAs!) */ - if (cpu_context(cpu, vma->vm_mm) != 0) { - drop_mmu_context(vma->vm_mm, cpu); - } + if (vma->vm_mm == current->active_mm) { + if (cpu_context(cpu, vma->vm_mm) != 0) + drop_mmu_context(vma->vm_mm, cpu); + } else + __sb1_flush_icache_range(start, start + PAGE_SIZE); + } #ifdef CONFIG_SMP @@ -520,7 +526,7 @@ /* These routines are for Icache coherence with the Dcache */ flush_icache_range = sb1_flush_icache_range; - flush_icache_page = sb1_flush_icache_page; + __flush_icache_page = sb1_flush_icache_page; flush_icache_all = __sb1_flush_icache_all; /* local only */ /* This implies an Icache flush too, so can't be nop'ed */
diff --git a/arch/mips/mm/c-tx39.c b/arch/mips/mm/c-tx39.c index 5dfc9b1..932a09d 100644 --- a/arch/mips/mm/c-tx39.c +++ b/arch/mips/mm/c-tx39.c
@@ -382,7 +382,7 @@ flush_cache_mm = (void *) tx39h_flush_icache_all; flush_cache_range = (void *) tx39h_flush_icache_all; flush_cache_page = (void *) tx39h_flush_icache_all; - flush_icache_page = (void *) tx39h_flush_icache_all; + __flush_icache_page = (void *) tx39h_flush_icache_all; flush_icache_range = (void *) tx39h_flush_icache_all; flush_cache_sigtramp = (void *) tx39h_flush_icache_all; @@ -408,7 +408,7 @@ flush_cache_mm = tx39_flush_cache_mm; flush_cache_range = tx39_flush_cache_range; flush_cache_page = tx39_flush_cache_page; - flush_icache_page = tx39_flush_icache_page; + __flush_icache_page = tx39_flush_icache_page; flush_icache_range = tx39_flush_icache_range; flush_cache_sigtramp = tx39_flush_cache_sigtramp;
diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c index ddd3a2d..40c8b02 100644 --- a/arch/mips/mm/cache.c +++ b/arch/mips/mm/cache.c
@@ -25,7 +25,7 @@ void (*flush_cache_page)(struct vm_area_struct *vma, unsigned long page, unsigned long pfn); void (*flush_icache_range)(unsigned long start, unsigned long end); -void (*flush_icache_page)(struct vm_area_struct *vma, struct page *page); +void (*__flush_icache_page)(struct vm_area_struct *vma, struct page *page); /* MIPS specific cache operations */ void (*flush_cache_sigtramp)(unsigned long addr); @@ -70,6 +70,8 @@ struct address_space *mapping = page_mapping(page); unsigned long addr; + if (PageHighMem(page)) + return; if (mapping && !mapping_mapped(mapping)) { SetPageDcacheDirty(page); return; @@ -91,16 +93,16 @@ { struct page *page; unsigned long pfn, addr; + int exec = (vma->vm_flags & VM_EXEC) && !cpu_has_ic_fills_f_dc; pfn = pte_pfn(pte); - if (pfn_valid(pfn) && (page = pfn_to_page(pfn), page_mapping(page)) && - Page_dcache_dirty(page)) { - if (pages_do_alias((unsigned long)page_address(page), - address & PAGE_MASK)) { - addr = (unsigned long) page_address(page); + if (unlikely(!pfn_valid(pfn))) + return; + page = pfn_to_page(pfn); + if (page_mapping(page) && Page_dcache_dirty(page)) { + addr = (unsigned long) page_address(page); + if (exec || pages_do_alias(addr, address & PAGE_MASK)) flush_data_cache_page(addr); - } - ClearPageDcacheDirty(page); } }
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c index e3a6172..a4f8c45 100644 --- a/arch/mips/mm/fault.c +++ b/arch/mips/mm/fault.c
@@ -89,7 +89,7 @@ if (!(vma->vm_flags & VM_WRITE)) goto bad_area; } else { - if (!(vma->vm_flags & (VM_READ | VM_EXEC))) + if (!(vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC))) goto bad_area; }
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index c52497b..5b06349 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c
@@ -163,10 +163,10 @@ void __init paging_init(void) { - unsigned long zones_size[] = { [0 ... MAX_NR_ZONES - 1] = 0 }; + unsigned long zones_size[] = { 0, }; unsigned long max_dma, high, low; #ifndef CONFIG_FLATMEM - unsigned long zholes_size[] = { [0 ... MAX_NR_ZONES - 1] = 0 }; + unsigned long zholes_size[] = { 0, }; unsigned long i, j, pfn; #endif
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c index 2cde1b7..2e0e21e 100644 --- a/arch/mips/mm/tlb-r4k.c +++ b/arch/mips/mm/tlb-r4k.c
@@ -26,11 +26,6 @@ */ #define UNIQUE_ENTRYHI(idx) (CKSEG0 + ((idx) << (PAGE_SHIFT + 1))) -/* CP0 hazard avoidance. */ -#define BARRIER __asm__ __volatile__(".set noreorder\n\t" \ - "nop; nop; nop; nop; nop; nop;\n\t" \ - ".set reorder\n\t") - /* Atomicity and interruptability */ #ifdef CONFIG_MIPS_MT_SMTC @@ -126,7 +121,7 @@ start += (PAGE_SIZE << 1); mtc0_tlbw_hazard(); tlb_probe(); - BARRIER; + tlb_probe_hazard(); idx = read_c0_index(); write_c0_entrylo0(0); write_c0_entrylo1(0); @@ -168,7 +163,7 @@ start += (PAGE_SIZE << 1); mtc0_tlbw_hazard(); tlb_probe(); - BARRIER; + tlb_probe_hazard(); idx = read_c0_index(); write_c0_entrylo0(0); write_c0_entrylo1(0); @@ -202,7 +197,7 @@ write_c0_entryhi(page | newpid); mtc0_tlbw_hazard(); tlb_probe(); - BARRIER; + tlb_probe_hazard(); idx = read_c0_index(); write_c0_entrylo0(0); write_c0_entrylo1(0); @@ -235,7 +230,7 @@ write_c0_entryhi(page); mtc0_tlbw_hazard(); tlb_probe(); - BARRIER; + tlb_probe_hazard(); idx = read_c0_index(); write_c0_entrylo0(0); write_c0_entrylo1(0); @@ -279,7 +274,7 @@ pgdp = pgd_offset(vma->vm_mm, address); mtc0_tlbw_hazard(); tlb_probe(); - BARRIER; + tlb_probe_hazard(); pudp = pud_offset(pgdp, address); pmdp = pmd_offset(pudp, address); idx = read_c0_index(); @@ -320,7 +315,7 @@ pgdp = pgd_offset(vma->vm_mm, address); mtc0_tlbw_hazard(); tlb_probe(); - BARRIER; + tlb_probe_hazard(); pmdp = pmd_offset(pgdp, address); idx = read_c0_index(); ptep = pte_offset_map(pmdp, address); @@ -351,7 +346,7 @@ wired = read_c0_wired(); write_c0_wired(wired + 1); write_c0_index(wired); - BARRIER; + tlbw_use_hazard(); /* What is the hazard here? */ write_c0_pagemask(pagemask); write_c0_entryhi(entryhi); write_c0_entrylo0(entrylo0); @@ -361,7 +356,7 @@ tlbw_use_hazard(); write_c0_entryhi(old_ctx); - BARRIER; + tlbw_use_hazard(); /* What is the hazard here? */ write_c0_pagemask(old_pagemask); local_flush_tlb_all(); EXIT_CRITICAL(flags);
diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile index 35d5927..edefa97 100644 --- a/arch/mips/pci/Makefile +++ b/arch/mips/pci/Makefile
@@ -11,7 +11,6 @@ obj-$(CONFIG_MIPS_BONITO64) += ops-bonito64.o obj-$(CONFIG_MIPS_GT64111) += ops-gt64111.o obj-$(CONFIG_MIPS_GT64120) += ops-gt64120.o -obj-$(CONFIG_MIPS_GT96100) += ops-gt96100.o obj-$(CONFIG_PCI_MARVELL) += ops-marvell.o obj-$(CONFIG_MIPS_MSC) += ops-msc.o obj-$(CONFIG_MIPS_NILE4) += ops-nile4.o @@ -28,8 +27,7 @@ obj-$(CONFIG_LASAT) += pci-lasat.o obj-$(CONFIG_MIPS_ATLAS) += fixup-atlas.o obj-$(CONFIG_MIPS_COBALT) += fixup-cobalt.o -obj-$(CONFIG_MIPS_EV96100) += fixup-ev64120.o -obj-$(CONFIG_MIPS_EV96100) += fixup-ev96100.o pci-ev96100.o +obj-$(CONFIG_MIPS_EV64120) += fixup-ev64120.o obj-$(CONFIG_MIPS_ITE8172) += fixup-ite8172g.o obj-$(CONFIG_MIPS_IVR) += fixup-ivr.o obj-$(CONFIG_SOC_AU1500) += fixup-au1000.o ops-au1000.o
diff --git a/arch/mips/pci/fixup-atlas.c b/arch/mips/pci/fixup-atlas.c index 439510a..c6cd6e9 100644 --- a/arch/mips/pci/fixup-atlas.c +++ b/arch/mips/pci/fixup-atlas.c
@@ -21,16 +21,16 @@ #include <asm/mips-boards/atlasint.h> -#define PCIA ATLASINT_PCIA -#define PCIB ATLASINT_PCIB -#define PCIC ATLASINT_PCIC -#define PCID ATLASINT_PCID -#define INTA ATLASINT_INTA -#define INTB ATLASINT_INTB -#define ETH ATLASINT_ETH -#define INTC ATLASINT_INTC -#define SCSI ATLASINT_SCSI -#define INTD ATLASINT_INTD +#define PCIA ATLAS_INT_PCIA +#define PCIB ATLAS_INT_PCIB +#define PCIC ATLAS_INT_PCIC +#define PCID ATLAS_INT_PCID +#define INTA ATLAS_INT_INTA +#define INTB ATLAS_INT_INTB +#define ETH ATLAS_INT_ETH +#define INTC ATLAS_INT_INTC +#define SCSI ATLAS_INT_SCSI +#define INTD ATLAS_INT_INTD static char irq_tab[][5] __initdata = { /* INTA INTB INTC INTD */
diff --git a/arch/mips/pci/fixup-ev96100.c b/arch/mips/pci/fixup-ev96100.c deleted file mode 100644 index e2bc977..0000000 --- a/arch/mips/pci/fixup-ev96100.c +++ /dev/null
@@ -1,48 +0,0 @@ -/* - * - * BRIEF MODULE DESCRIPTION - * EV96100 Board specific pci fixups. - * - * Copyright 2001 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#include <linux/init.h> -#include <linux/types.h> -#include <linux/pci.h> - -static char irq_tab_ev96100[][5] __initdata = { - [8] = { 0, 5, 5, 5, 5 }, - [9] = { 0, 2, 2, 2, 2 } -}; - -int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - return irq_tab_ev96100[slot][pin]; -} - -/* Do platform specific device initialization at pci_enable_device() time */ -int pcibios_plat_dev_init(struct pci_dev *dev) -{ - return 0; -}
diff --git a/arch/mips/pci/ops-au1000.c b/arch/mips/pci/ops-au1000.c index 0c0c1e65..8ae4648 100644 --- a/arch/mips/pci/ops-au1000.c +++ b/arch/mips/pci/ops-au1000.c
@@ -110,7 +110,7 @@ if (first_cfg) { /* reserve a wired entry for pci config accesses */ first_cfg = 0; - pci_cfg_vm = get_vm_area(0x2000, 0); + pci_cfg_vm = get_vm_area(0x2000, VM_IOREMAP); if (!pci_cfg_vm) panic (KERN_ERR "PCI unable to get vm area\n"); pci_cfg_wired_entry = read_c0_wired();
diff --git a/arch/mips/pci/ops-gt96100.c b/arch/mips/pci/ops-gt96100.c deleted file mode 100644 index 9e4ea66..0000000 --- a/arch/mips/pci/ops-gt96100.c +++ /dev/null
@@ -1,169 +0,0 @@ -/* - * - * BRIEF MODULE DESCRIPTION - * Galileo EV96100 board specific pci support. - * - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * This file was derived from Carsten Langgaard's - * arch/mips/mips-boards/generic/pci.c - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/kernel.h> -#include <linux/init.h> - -#include <asm/delay.h> -#include <asm/gt64120.h> -#include <asm/galileo-boards/ev96100.h> - -#define PCI_ACCESS_READ 0 -#define PCI_ACCESS_WRITE 1 - -static int static gt96100_config_access(unsigned char access_type, - struct pci_bus *bus, unsigned int devfn, int where, u32 * data) -{ - unsigned char bus = bus->number; - u32 intr; - - /* - * Because of a bug in the galileo (for slot 31). - */ - if (bus == 0 && devfn >= PCI_DEVFN(31, 0)) - return PCIBIOS_DEVICE_NOT_FOUND; - - /* Clear cause register bits */ - GT_WRITE(GT_INTRCAUSE_OFS, ~(GT_INTRCAUSE_MASABORT0_BIT | - GT_INTRCAUSE_TARABORT0_BIT)); - - /* Setup address */ - GT_WRITE(GT_PCI0_CFGADDR_OFS, - (bus << GT_PCI0_CFGADDR_BUSNUM_SHF) | - (devfn << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | - ((where / 4) << GT_PCI0_CFGADDR_REGNUM_SHF) | - GT_PCI0_CFGADDR_CONFIGEN_BIT); - udelay(2); - - - if (access_type == PCI_ACCESS_WRITE) { - if (devfn != 0) - *data = le32_to_cpu(*data); - GT_WRITE(GT_PCI0_CFGDATA_OFS, *data); - } else { - *data = GT_READ(GT_PCI0_CFGDATA_OFS); - if (devfn != 0) - *data = le32_to_cpu(*data); - } - - udelay(2); - - /* Check for master or target abort */ - intr = GT_READ(GT_INTRCAUSE_OFS); - - if (intr & (GT_INTRCAUSE_MASABORT0_BIT | GT_INTRCAUSE_TARABORT0_BIT)) { - /* Error occured */ - - /* Clear bits */ - GT_WRITE(GT_INTRCAUSE_OFS, ~(GT_INTRCAUSE_MASABORT0_BIT | - GT_INTRCAUSE_TARABORT0_BIT)); - return -1; - } - return 0; -} - -/* - * We can't address 8 and 16 bit words directly. Instead we have to - * read/write a 32bit word and mask/modify the data we actually want. - */ -static int gt96100_pcibios_read(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 * val) -{ - u32 data = 0; - - if (gt96100_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) - return PCIBIOS_DEVICE_NOT_FOUND; - - switch (size) { - case 1: - *val = (data >> ((where & 3) << 3)) & 0xff; - break; - - case 2: - *val = (data >> ((where & 3) << 3)) & 0xffff; - break; - - case 4: - *val = data; - break; - } - return PCIBIOS_SUCCESSFUL; -} - -static int gt96100_pcibios_write(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 val) -{ - u32 data = 0; - - switch (size) { - case 1: - if (gt96100_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) - return -1; - - data = (data & ~(0xff << ((where & 3) << 3))) | - (val << ((where & 3) << 3)); - - if (gt96100_config_access(PCI_ACCESS_WRITE, bus, devfn, where, &data)) - return -1; - - return PCIBIOS_SUCCESSFUL; - - case 2: - if (gt96100_config_access(PCI_ACCESS_READ, bus, devfn, where, &data)) - return -1; - - data = (data & ~(0xffff << ((where & 3) << 3))) | - (val << ((where & 3) << 3)); - - if (gt96100_config_access(PCI_ACCESS_WRITE, dev, where, &data)) - return -1; - - - return PCIBIOS_SUCCESSFUL; - - case 4: - if (gt96100_config_access(PCI_ACCESS_WRITE, dev, where, &val)) - return -1; - - return PCIBIOS_SUCCESSFUL; - } -} - -struct pci_ops gt96100_pci_ops = { - .read = gt96100_pcibios_read, - .write = gt96100_pcibios_write -};
diff --git a/arch/mips/pci/pci-ev96100.c b/arch/mips/pci/pci-ev96100.c deleted file mode 100644 index f9457ea..0000000 --- a/arch/mips/pci/pci-ev96100.c +++ /dev/null
@@ -1,63 +0,0 @@ -/* - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. - * - * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org) - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/kernel.h> -#include <linux/init.h> - -static struct resource pci_io_resource = { - .name = "io pci IO space", - .start = 0x10000000, - .end = 0x11ffffff, - .flags = IORESOURCE_IO -}; - -static struct resource pci_mem_resource = { - .name = "ext pci memory space", - .start = 0x12000000, - .end = 0x13ffffff, - .flags = IORESOURCE_MEM -}; - -extern struct pci_ops gt96100_pci_ops; - -struct pci_controller ev96100_controller = { - .pci_ops = >96100_pci_ops, - .io_resource = &pci_io_resource, - .mem_resource = &pci_mem_resource, -}; - -static void ev96100_pci_init(void) -{ - register_pci_controller(&ev96100_controller); -} - -arch_initcall(ev96100_pci_init);
diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c index 80eb9af..405ce01 100644 --- a/arch/mips/pci/pci-ip27.c +++ b/arch/mips/pci/pci-ip27.c
@@ -16,8 +16,6 @@ #include <asm/sn/intr.h> #include <asm/sn/sn0/hub.h> -extern unsigned int allocate_irqno(void); - /* * Max #PCI busses we can handle; ie, max #PCI bridges. */
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c index efe6971..16e5682 100644 --- a/arch/mips/sgi-ip27/ip27-memory.c +++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -19,6 +19,7 @@ #include <linux/swap.h> #include <linux/bootmem.h> #include <linux/pfn.h> +#include <linux/highmem.h> #include <asm/page.h> #include <asm/sections.h> @@ -508,7 +509,7 @@ void __init paging_init(void) { - unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0}; + unsigned long zones_size[MAX_NR_ZONES] = {0, }; unsigned node; pagetable_init();
diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c index ed325f0..a0222fa 100644 --- a/arch/mips/sibyte/bcm1480/irq.c +++ b/arch/mips/sibyte/bcm1480/irq.c
@@ -469,21 +469,6 @@ #endif /* CONFIG_KGDB */ -static inline int dclz(unsigned long long x) -{ - int lz; - - __asm__ ( - " .set push \n" - " .set mips64 \n" - " dclz %0, %1 \n" - " .set pop \n" - : "=r" (lz) - : "r" (x)); - - return lz; -} - extern void bcm1480_timer_interrupt(struct pt_regs *regs); extern void bcm1480_mailbox_interrupt(struct pt_regs *regs); extern void bcm1480_kgdb_interrupt(struct pt_regs *regs); @@ -536,9 +521,9 @@ if (mask_h) { if (mask_h ^ 1) - do_IRQ(63 - dclz(mask_h), regs); + do_IRQ(fls64(mask_h) - 1, regs); else - do_IRQ(127 - dclz(mask_l), regs); + do_IRQ(63 + fls64(mask_l), regs); } } }
diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c index 1de71ad..a451b4c 100644 --- a/arch/mips/sibyte/sb1250/irq.c +++ b/arch/mips/sibyte/sb1250/irq.c
@@ -419,21 +419,6 @@ #endif /* CONFIG_KGDB */ -static inline int dclz(unsigned long long x) -{ - int lz; - - __asm__ ( - " .set push \n" - " .set mips64 \n" - " dclz %0, %1 \n" - " .set pop \n" - : "=r" (lz) - : "r" (x)); - - return lz; -} - extern void sb1250_timer_interrupt(struct pt_regs *regs); extern void sb1250_mailbox_interrupt(struct pt_regs *regs); extern void sb1250_kgdb_interrupt(struct pt_regs *regs); @@ -490,6 +475,6 @@ mask = __raw_readq(IOADDR(A_IMR_REGISTER(smp_processor_id(), R_IMR_INTERRUPT_STATUS_BASE))); if (mask) - do_IRQ(63 - dclz(mask), regs); + do_IRQ(fls64(mask) - 1, regs); } }
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index f2b96f1..25ad28d 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c
@@ -551,7 +551,7 @@ printk("Zone list for zone %d on node %d: ", j, i); for (k = 0; zl->zones[k] != NULL; k++) - printk("[%d/%s] ", zl->zones[k]->zone_pgdat->node_id, zl->zones[k]->name); + printk("[%d/%s] ", zone_to_nid(zl->zones[k]), zl->zones[k]->name); printk("\n"); } } @@ -809,7 +809,7 @@ flush_tlb_all_local(NULL); for (i = 0; i < npmem_ranges; i++) { - unsigned long zones_size[MAX_NR_ZONES] = { 0, 0, 0 }; + unsigned long zones_size[MAX_NR_ZONES] = { 0, }; /* We have an IOMMU, so all memory can go into a single ZONE_DMA zone. */
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index de1ef2f..a0dd1b0 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig
@@ -731,11 +731,10 @@ def_bool y depends on SMP && PPC_PSERIES -source "mm/Kconfig" - -config HAVE_ARCH_EARLY_PFN_TO_NID +config ARCH_POPULATES_NODE_MAP def_bool y - depends on NEED_MULTIPLE_NODES + +source "mm/Kconfig" config ARCH_MEMORY_PROBE def_bool y
diff --git a/arch/powerpc/kernel/swsusp_32.S b/arch/powerpc/kernel/swsusp_32.S index 7369f9a..69e8f86 100644 --- a/arch/powerpc/kernel/swsusp_32.S +++ b/arch/powerpc/kernel/swsusp_32.S
@@ -159,8 +159,8 @@ isync /* Load ptr the list of pages to copy in r3 */ - lis r11,(pagedir_nosave - KERNELBASE)@h - ori r11,r11,pagedir_nosave@l + lis r11,(restore_pblist - KERNELBASE)@h + ori r11,r11,restore_pblist@l lwz r10,0(r11) /* Copy the pages. This is a very basic implementation, to
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c index 2e29286..5e391fc 100644 --- a/arch/powerpc/kernel/sys_ppc32.c +++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -740,7 +740,7 @@ return sys_umask((int)mask); } -#ifdef CONFIG_SYSCTL +#ifdef CONFIG_SYSCTL_SYSCALL struct __sysctl_args32 { u32 name; int nlen;
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index eebd8b8..16fe027 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c
@@ -256,20 +256,22 @@ boot_mapsize = init_bootmem(start >> PAGE_SHIFT, total_pages); + /* Add active regions with valid PFNs */ + for (i = 0; i < lmb.memory.cnt; i++) { + unsigned long start_pfn, end_pfn; + start_pfn = lmb.memory.region[i].base >> PAGE_SHIFT; + end_pfn = start_pfn + lmb_size_pages(&lmb.memory, i); + add_active_range(0, start_pfn, end_pfn); + } + /* Add all physical memory to the bootmem map, mark each area * present. */ - for (i = 0; i < lmb.memory.cnt; i++) { - unsigned long base = lmb.memory.region[i].base; - unsigned long size = lmb_size_bytes(&lmb.memory, i); #ifdef CONFIG_HIGHMEM - if (base >= total_lowmem) - continue; - if (base + size > total_lowmem) - size = total_lowmem - base; + free_bootmem_with_active_regions(0, total_lowmem >> PAGE_SHIFT); +#else + free_bootmem_with_active_regions(0, max_pfn); #endif - free_bootmem(base, size); - } /* reserve the sections we're already using */ for (i = 0; i < lmb.reserved.cnt; i++) @@ -277,9 +279,8 @@ lmb_size_bytes(&lmb.reserved, i)); /* XXX need to clip this if using highmem? */ - for (i = 0; i < lmb.memory.cnt; i++) - memory_present(0, lmb_start_pfn(&lmb.memory, i), - lmb_end_pfn(&lmb.memory, i)); + sparse_memory_present_with_active_regions(0); + init_bootmem_done = 1; } @@ -288,10 +289,9 @@ */ void __init paging_init(void) { - unsigned long zones_size[MAX_NR_ZONES]; - unsigned long zholes_size[MAX_NR_ZONES]; unsigned long total_ram = lmb_phys_mem_size(); unsigned long top_of_ram = lmb_end_of_DRAM(); + unsigned long max_zone_pfns[MAX_NR_ZONES]; #ifdef CONFIG_HIGHMEM map_page(PKMAP_BASE, 0, 0); /* XXX gross */ @@ -307,26 +307,13 @@ top_of_ram, total_ram); printk(KERN_DEBUG "Memory hole size: %ldMB\n", (top_of_ram - total_ram) >> 20); - /* - * All pages are DMA-able so we put them all in the DMA zone. - */ - memset(zones_size, 0, sizeof(zones_size)); - memset(zholes_size, 0, sizeof(zholes_size)); - - zones_size[ZONE_DMA] = top_of_ram >> PAGE_SHIFT; - zholes_size[ZONE_DMA] = (top_of_ram - total_ram) >> PAGE_SHIFT; - #ifdef CONFIG_HIGHMEM - zones_size[ZONE_DMA] = total_lowmem >> PAGE_SHIFT; - zones_size[ZONE_HIGHMEM] = (total_memory - total_lowmem) >> PAGE_SHIFT; - zholes_size[ZONE_HIGHMEM] = (top_of_ram - total_ram) >> PAGE_SHIFT; + max_zone_pfns[0] = total_lowmem >> PAGE_SHIFT; + max_zone_pfns[1] = top_of_ram >> PAGE_SHIFT; #else - zones_size[ZONE_DMA] = top_of_ram >> PAGE_SHIFT; - zholes_size[ZONE_DMA] = (top_of_ram - total_ram) >> PAGE_SHIFT; -#endif /* CONFIG_HIGHMEM */ - - free_area_init_node(0, NODE_DATA(0), zones_size, - __pa(PAGE_OFFSET) >> PAGE_SHIFT, zholes_size); + max_zone_pfns[0] = top_of_ram >> PAGE_SHIFT; +#endif + free_area_init_nodes(max_zone_pfns); } #endif /* ! CONFIG_NEED_MULTIPLE_NODES */
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 6c0f1c7..43c2720 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c
@@ -39,96 +39,6 @@ static int min_common_depth; static int n_mem_addr_cells, n_mem_size_cells; -/* - * We need somewhere to store start/end/node for each region until we have - * allocated the real node_data structures. - */ -#define MAX_REGIONS (MAX_LMB_REGIONS*2) -static struct { - unsigned long start_pfn; - unsigned long end_pfn; - int nid; -} init_node_data[MAX_REGIONS] __initdata; - -int __init early_pfn_to_nid(unsigned long pfn) -{ - unsigned int i; - - for (i = 0; init_node_data[i].end_pfn; i++) { - unsigned long start_pfn = init_node_data[i].start_pfn; - unsigned long end_pfn = init_node_data[i].end_pfn; - - if ((start_pfn <= pfn) && (pfn < end_pfn)) - return init_node_data[i].nid; - } - - return -1; -} - -void __init add_region(unsigned int nid, unsigned long start_pfn, - unsigned long pages) -{ - unsigned int i; - - dbg("add_region nid %d start_pfn 0x%lx pages 0x%lx\n", - nid, start_pfn, pages); - - for (i = 0; init_node_data[i].end_pfn; i++) { - if (init_node_data[i].nid != nid) - continue; - if (init_node_data[i].end_pfn == start_pfn) { - init_node_data[i].end_pfn += pages; - return; - } - if (init_node_data[i].start_pfn == (start_pfn + pages)) { - init_node_data[i].start_pfn -= pages; - return; - } - } - - /* - * Leave last entry NULL so we dont iterate off the end (we use - * entry.end_pfn to terminate the walk). - */ - if (i >= (MAX_REGIONS - 1)) { - printk(KERN_ERR "WARNING: too many memory regions in " - "numa code, truncating\n"); - return; - } - - init_node_data[i].start_pfn = start_pfn; - init_node_data[i].end_pfn = start_pfn + pages; - init_node_data[i].nid = nid; -} - -/* We assume init_node_data has no overlapping regions */ -void __init get_region(unsigned int nid, unsigned long *start_pfn, - unsigned long *end_pfn, unsigned long *pages_present) -{ - unsigned int i; - - *start_pfn = -1UL; - *end_pfn = *pages_present = 0; - - for (i = 0; init_node_data[i].end_pfn; i++) { - if (init_node_data[i].nid != nid) - continue; - - *pages_present += init_node_data[i].end_pfn - - init_node_data[i].start_pfn; - - if (init_node_data[i].start_pfn < *start_pfn) - *start_pfn = init_node_data[i].start_pfn; - - if (init_node_data[i].end_pfn > *end_pfn) - *end_pfn = init_node_data[i].end_pfn; - } - - /* We didnt find a matching region, return start/end as 0 */ - if (*start_pfn == -1UL) - *start_pfn = 0; -} - static void __cpuinit map_cpu_to_node(int cpu, int node) { numa_cpu_lookup_table[cpu] = node; @@ -468,8 +378,8 @@ continue; } - add_region(nid, start >> PAGE_SHIFT, - size >> PAGE_SHIFT); + add_active_range(nid, start >> PAGE_SHIFT, + (start >> PAGE_SHIFT) + (size >> PAGE_SHIFT)); if (--ranges) goto new_range; @@ -482,6 +392,7 @@ { unsigned long top_of_ram = lmb_end_of_DRAM(); unsigned long total_ram = lmb_phys_mem_size(); + unsigned long start_pfn, end_pfn; unsigned int i; printk(KERN_DEBUG "Top of RAM: 0x%lx, Total RAM: 0x%lx\n", @@ -489,9 +400,11 @@ printk(KERN_DEBUG "Memory hole size: %ldMB\n", (top_of_ram - total_ram) >> 20); - for (i = 0; i < lmb.memory.cnt; ++i) - add_region(0, lmb.memory.region[i].base >> PAGE_SHIFT, - lmb_size_pages(&lmb.memory, i)); + for (i = 0; i < lmb.memory.cnt; ++i) { + start_pfn = lmb.memory.region[i].base >> PAGE_SHIFT; + end_pfn = start_pfn + lmb_size_pages(&lmb.memory, i); + add_active_range(0, start_pfn, end_pfn); + } node_set_online(0); } @@ -630,11 +543,11 @@ (void *)(unsigned long)boot_cpuid); for_each_online_node(nid) { - unsigned long start_pfn, end_pfn, pages_present; + unsigned long start_pfn, end_pfn; unsigned long bootmem_paddr; unsigned long bootmap_pages; - get_region(nid, &start_pfn, &end_pfn, &pages_present); + get_pfn_range_for_nid(nid, &start_pfn, &end_pfn); /* Allocate the node structure node local if possible */ NODE_DATA(nid) = careful_allocation(nid, @@ -667,19 +580,7 @@ init_bootmem_node(NODE_DATA(nid), bootmem_paddr >> PAGE_SHIFT, start_pfn, end_pfn); - /* Add free regions on this node */ - for (i = 0; init_node_data[i].end_pfn; i++) { - unsigned long start, end; - - if (init_node_data[i].nid != nid) - continue; - - start = init_node_data[i].start_pfn << PAGE_SHIFT; - end = init_node_data[i].end_pfn << PAGE_SHIFT; - - dbg("free_bootmem %lx %lx\n", start, end - start); - free_bootmem_node(NODE_DATA(nid), start, end - start); - } + free_bootmem_with_active_regions(nid, end_pfn); /* Mark reserved regions on this node */ for (i = 0; i < lmb.reserved.cnt; i++) { @@ -710,44 +611,16 @@ } } - /* Add regions into sparsemem */ - for (i = 0; init_node_data[i].end_pfn; i++) { - unsigned long start, end; - - if (init_node_data[i].nid != nid) - continue; - - start = init_node_data[i].start_pfn; - end = init_node_data[i].end_pfn; - - memory_present(nid, start, end); - } + sparse_memory_present_with_active_regions(nid); } } void __init paging_init(void) { - unsigned long zones_size[MAX_NR_ZONES]; - unsigned long zholes_size[MAX_NR_ZONES]; - int nid; - - memset(zones_size, 0, sizeof(zones_size)); - memset(zholes_size, 0, sizeof(zholes_size)); - - for_each_online_node(nid) { - unsigned long start_pfn, end_pfn, pages_present; - - get_region(nid, &start_pfn, &end_pfn, &pages_present); - - zones_size[ZONE_DMA] = end_pfn - start_pfn; - zholes_size[ZONE_DMA] = zones_size[ZONE_DMA] - pages_present; - - dbg("free_area_init node %d %lx %lx (hole: %lx)\n", nid, - zones_size[ZONE_DMA], start_pfn, zholes_size[ZONE_DMA]); - - free_area_init_node(nid, NODE_DATA(nid), zones_size, start_pfn, - zholes_size); - } + unsigned long max_zone_pfns[MAX_NR_ZONES] = { + lmb_end_of_DRAM() >> PAGE_SHIFT + }; + free_area_init_nodes(max_zone_pfns); } static int __init early_numa(char *p)
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index 7b45728..3950ddc 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -82,7 +82,6 @@ inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; out: @@ -120,7 +119,7 @@ ret = 0; inode->i_op = &spufs_file_iops; inode->i_fop = fops; - inode->u.generic_ip = SPUFS_I(inode)->i_ctx = get_spu_context(ctx); + inode->i_private = SPUFS_I(inode)->i_ctx = get_spu_context(ctx); d_add(dentry, inode); out: return ret;
diff --git a/arch/powerpc/platforms/pseries/hvCall_inst.c b/arch/powerpc/platforms/pseries/hvCall_inst.c index 641e651..446e17d 100644 --- a/arch/powerpc/platforms/pseries/hvCall_inst.c +++ b/arch/powerpc/platforms/pseries/hvCall_inst.c
@@ -85,7 +85,7 @@ rc = seq_open(file, &hcall_inst_seq_ops); seq = file->private_data; - seq->private = file->f_dentry->d_inode->u.generic_ip; + seq->private = file->f_dentry->d_inode->i_private; return rc; }
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c index b604926..723972b 100644 --- a/arch/powerpc/sysdev/mpic.c +++ b/arch/powerpc/sysdev/mpic.c
@@ -339,7 +339,7 @@ for (pos = readb(devbase + PCI_CAPABILITY_LIST); pos != 0; pos = readb(devbase + pos + PCI_CAP_LIST_NEXT)) { u8 id = readb(devbase + pos + PCI_CAP_LIST_ID); - if (id == PCI_CAP_ID_HT_IRQCONF) { + if (id == PCI_CAP_ID_HT) { id = readb(devbase + pos + 3); if (id == 0x80) break;
diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig index 8fa10cf..fdd9e7b 100644 --- a/arch/ppc/Kconfig +++ b/arch/ppc/Kconfig
@@ -953,6 +953,9 @@ config HIGHMEM bool "High memory support" +config ARCH_POPULATES_NODE_MAP + def_bool y + source kernel/Kconfig.hz source kernel/Kconfig.preempt source "mm/Kconfig"
diff --git a/arch/ppc/mm/init.c b/arch/ppc/mm/init.c index 523392d..4102000 100644 --- a/arch/ppc/mm/init.c +++ b/arch/ppc/mm/init.c
@@ -358,8 +358,8 @@ */ void __init paging_init(void) { - unsigned long zones_size[MAX_NR_ZONES], i; - + unsigned long start_pfn, end_pfn; + unsigned long max_zone_pfns[MAX_NR_ZONES]; #ifdef CONFIG_HIGHMEM map_page(PKMAP_BASE, 0, 0); /* XXX gross */ pkmap_page_table = pte_offset_kernel(pmd_offset(pgd_offset_k @@ -369,19 +369,18 @@ (KMAP_FIX_BEGIN), KMAP_FIX_BEGIN), KMAP_FIX_BEGIN); kmap_prot = PAGE_KERNEL; #endif /* CONFIG_HIGHMEM */ - - /* - * All pages are DMA-able so we put them all in the DMA zone. - */ - zones_size[ZONE_DMA] = total_lowmem >> PAGE_SHIFT; - for (i = 1; i < MAX_NR_ZONES; i++) - zones_size[i] = 0; + /* All pages are DMA-able so we put them all in the DMA zone. */ + start_pfn = __pa(PAGE_OFFSET) >> PAGE_SHIFT; + end_pfn = start_pfn + (total_memory >> PAGE_SHIFT); + add_active_range(0, start_pfn, end_pfn); #ifdef CONFIG_HIGHMEM - zones_size[ZONE_HIGHMEM] = (total_memory - total_lowmem) >> PAGE_SHIFT; + max_zone_pfns[0] = total_lowmem >> PAGE_SHIFT; + max_zone_pfns[1] = total_memory >> PAGE_SHIFT; +#else + max_zone_pfns[0] = total_memory >> PAGE_SHIFT; #endif /* CONFIG_HIGHMEM */ - - free_area_init(zones_size); + free_area_init_nodes(max_zone_pfns); } void __init mem_init(void)
diff --git a/arch/s390/appldata/appldata_mem.c b/arch/s390/appldata/appldata_mem.c index ab3b076..8aea369 100644 --- a/arch/s390/appldata/appldata_mem.c +++ b/arch/s390/appldata/appldata_mem.c
@@ -117,8 +117,7 @@ mem_data->pgpgout = ev[PGPGOUT] >> 1; mem_data->pswpin = ev[PSWPIN]; mem_data->pswpout = ev[PSWPOUT]; - mem_data->pgalloc = ev[PGALLOC_HIGH] + ev[PGALLOC_NORMAL] + - ev[PGALLOC_DMA]; + mem_data->pgalloc = ev[PGALLOC_NORMAL] + ev[PGALLOC_DMA]; mem_data->pgfault = ev[PGFAULT]; mem_data->pgmajfault = ev[PGMAJFAULT];
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c index bdade5f..813fc21 100644 --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c
@@ -91,7 +91,6 @@ ret->i_mode = mode; ret->i_uid = hypfs_info->uid; ret->i_gid = hypfs_info->gid; - ret->i_blksize = PAGE_CACHE_SIZE; ret->i_blocks = 0; ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME; if (mode & S_IFDIR) @@ -104,13 +103,13 @@ static void hypfs_drop_inode(struct inode *inode) { - kfree(inode->u.generic_ip); + kfree(inode->i_private); generic_delete_inode(inode); } static int hypfs_open(struct inode *inode, struct file *filp) { - char *data = filp->f_dentry->d_inode->u.generic_ip; + char *data = filp->f_dentry->d_inode->i_private; struct hypfs_sb_info *fs_info; if (filp->f_mode & FMODE_WRITE) { @@ -352,7 +351,7 @@ parent->d_inode->i_nlink++; } else BUG(); - inode->u.generic_ip = data; + inode->i_private = data; d_instantiate(dentry, inode); dget(dentry); return dentry;
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c index 785c9f7..91b2884 100644 --- a/arch/s390/kernel/compat_linux.c +++ b/arch/s390/kernel/compat_linux.c
@@ -708,7 +708,7 @@ return ret; } -#ifdef CONFIG_SYSCTL +#ifdef CONFIG_SYSCTL_SYSCALL struct __sysctl_args32 { u32 name; int nlen;
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c index 7ba2092..43f3d0c 100644 --- a/arch/s390/kernel/debug.c +++ b/arch/s390/kernel/debug.c
@@ -603,7 +603,7 @@ debug_info_t *debug_info, *debug_info_snapshot; down(&debug_lock); - debug_info = (struct debug_info*)file->f_dentry->d_inode->u.generic_ip; + debug_info = file->f_dentry->d_inode->i_private; /* find debug view */ for (i = 0; i < DEBUG_MAX_VIEWS; i++) { if (!debug_info->views[i])
diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c index de83f38..d9428a0 100644 --- a/arch/s390/kernel/stacktrace.c +++ b/arch/s390/kernel/stacktrace.c
@@ -59,9 +59,7 @@ } } -void save_stack_trace(struct stack_trace *trace, - struct task_struct *task, int all_contexts, - unsigned int skip) +void save_stack_trace(struct stack_trace *trace, struct task_struct *task) { register unsigned long sp asm ("15"); unsigned long orig_sp; @@ -69,22 +67,23 @@ sp &= PSW_ADDR_INSN; orig_sp = sp; - sp = save_context_stack(trace, &skip, sp, + sp = save_context_stack(trace, &trace->skip, sp, S390_lowcore.panic_stack - PAGE_SIZE, S390_lowcore.panic_stack); - if ((sp != orig_sp) && !all_contexts) + if ((sp != orig_sp) && !trace->all_contexts) return; - sp = save_context_stack(trace, &skip, sp, + sp = save_context_stack(trace, &trace->skip, sp, S390_lowcore.async_stack - ASYNC_SIZE, S390_lowcore.async_stack); - if ((sp != orig_sp) && !all_contexts) + if ((sp != orig_sp) && !trace->all_contexts) return; if (task) - save_context_stack(trace, &skip, sp, + save_context_stack(trace, &trace->skip, sp, (unsigned long) task_stack_page(task), (unsigned long) task_stack_page(task) + THREAD_SIZE); else - save_context_stack(trace, &skip, sp, S390_lowcore.thread_info, + save_context_stack(trace, &trace->skip, sp, + S390_lowcore.thread_info, S390_lowcore.thread_info + THREAD_SIZE); return; }
diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c index 786a44d..607f50e 100644 --- a/arch/s390/mm/cmm.c +++ b/arch/s390/mm/cmm.c
@@ -15,6 +15,8 @@ #include <linux/sched.h> #include <linux/sysctl.h> #include <linux/ctype.h> +#include <linux/swap.h> +#include <linux/kthread.h> #include <asm/pgalloc.h> #include <asm/uaccess.h> @@ -34,18 +36,18 @@ unsigned long pages[CMM_NR_PAGES]; }; -static long cmm_pages = 0; -static long cmm_timed_pages = 0; -static volatile long cmm_pages_target = 0; -static volatile long cmm_timed_pages_target = 0; -static long cmm_timeout_pages = 0; -static long cmm_timeout_seconds = 0; +static long cmm_pages; +static long cmm_timed_pages; +static volatile long cmm_pages_target; +static volatile long cmm_timed_pages_target; +static long cmm_timeout_pages; +static long cmm_timeout_seconds; -static struct cmm_page_array *cmm_page_list = NULL; -static struct cmm_page_array *cmm_timed_page_list = NULL; +static struct cmm_page_array *cmm_page_list; +static struct cmm_page_array *cmm_timed_page_list; +static DEFINE_SPINLOCK(cmm_lock); -static unsigned long cmm_thread_active = 0; -static struct work_struct cmm_thread_starter; +static struct task_struct *cmm_thread_ptr; static wait_queue_head_t cmm_thread_wait; static struct timer_list cmm_timer; @@ -53,71 +55,100 @@ static void cmm_set_timer(void); static long -cmm_alloc_pages(long pages, long *counter, struct cmm_page_array **list) +cmm_alloc_pages(long nr, long *counter, struct cmm_page_array **list) { - struct cmm_page_array *pa; - unsigned long page; + struct cmm_page_array *pa, *npa; + unsigned long addr; - pa = *list; - while (pages) { - page = __get_free_page(GFP_NOIO); - if (!page) + while (nr) { + addr = __get_free_page(GFP_NOIO); + if (!addr) break; + spin_lock(&cmm_lock); + pa = *list; if (!pa || pa->index >= CMM_NR_PAGES) { /* Need a new page for the page list. */ - pa = (struct cmm_page_array *) + spin_unlock(&cmm_lock); + npa = (struct cmm_page_array *) __get_free_page(GFP_NOIO); - if (!pa) { - free_page(page); + if (!npa) { + free_page(addr); break; } - pa->next = *list; - pa->index = 0; - *list = pa; + spin_lock(&cmm_lock); + pa = *list; + if (!pa || pa->index >= CMM_NR_PAGES) { + npa->next = pa; + npa->index = 0; + pa = npa; + *list = pa; + } else + free_page((unsigned long) npa); } - diag10(page); - pa->pages[pa->index++] = page; + diag10(addr); + pa->pages[pa->index++] = addr; (*counter)++; - pages--; + spin_unlock(&cmm_lock); + nr--; } - return pages; + return nr; } -static void -cmm_free_pages(long pages, long *counter, struct cmm_page_array **list) +static long +cmm_free_pages(long nr, long *counter, struct cmm_page_array **list) { struct cmm_page_array *pa; - unsigned long page; + unsigned long addr; + spin_lock(&cmm_lock); pa = *list; - while (pages) { + while (nr) { if (!pa || pa->index <= 0) break; - page = pa->pages[--pa->index]; + addr = pa->pages[--pa->index]; if (pa->index == 0) { pa = pa->next; free_page((unsigned long) *list); *list = pa; } - free_page(page); + free_page(addr); (*counter)--; - pages--; + nr--; } + spin_unlock(&cmm_lock); + return nr; } +static int cmm_oom_notify(struct notifier_block *self, + unsigned long dummy, void *parm) +{ + unsigned long *freed = parm; + long nr = 256; + + nr = cmm_free_pages(nr, &cmm_timed_pages, &cmm_timed_page_list); + if (nr > 0) + nr = cmm_free_pages(nr, &cmm_pages, &cmm_page_list); + cmm_pages_target = cmm_pages; + cmm_timed_pages_target = cmm_timed_pages; + *freed += 256 - nr; + return NOTIFY_OK; +} + +static struct notifier_block cmm_oom_nb = { + .notifier_call = cmm_oom_notify +}; + static int cmm_thread(void *dummy) { int rc; - daemonize("cmmthread"); while (1) { rc = wait_event_interruptible(cmm_thread_wait, (cmm_pages != cmm_pages_target || - cmm_timed_pages != cmm_timed_pages_target)); - if (rc == -ERESTARTSYS) { - /* Got kill signal. End thread. */ - clear_bit(0, &cmm_thread_active); + cmm_timed_pages != cmm_timed_pages_target || + kthread_should_stop())); + if (kthread_should_stop() || rc == -ERESTARTSYS) { cmm_pages_target = cmm_pages; cmm_timed_pages_target = cmm_timed_pages; break; @@ -143,16 +174,8 @@ } static void -cmm_start_thread(void) -{ - kernel_thread(cmm_thread, NULL, 0); -} - -static void cmm_kick_thread(void) { - if (!test_and_set_bit(0, &cmm_thread_active)) - schedule_work(&cmm_thread_starter); wake_up(&cmm_thread_wait); } @@ -177,21 +200,21 @@ static void cmm_timer_fn(unsigned long ignored) { - long pages; + long nr; - pages = cmm_timed_pages_target - cmm_timeout_pages; - if (pages < 0) + nr = cmm_timed_pages_target - cmm_timeout_pages; + if (nr < 0) cmm_timed_pages_target = 0; else - cmm_timed_pages_target = pages; + cmm_timed_pages_target = nr; cmm_kick_thread(); cmm_set_timer(); } void -cmm_set_pages(long pages) +cmm_set_pages(long nr) { - cmm_pages_target = pages; + cmm_pages_target = nr; cmm_kick_thread(); } @@ -202,9 +225,9 @@ } void -cmm_add_timed_pages(long pages) +cmm_add_timed_pages(long nr) { - cmm_timed_pages_target += pages; + cmm_timed_pages_target += nr; cmm_kick_thread(); } @@ -215,9 +238,9 @@ } void -cmm_set_timeout(long pages, long seconds) +cmm_set_timeout(long nr, long seconds) { - cmm_timeout_pages = pages; + cmm_timeout_pages = nr; cmm_timeout_seconds = seconds; cmm_set_timer(); } @@ -245,7 +268,7 @@ void __user *buffer, size_t *lenp, loff_t *ppos) { char buf[16], *p; - long pages; + long nr; int len; if (!*lenp || (*ppos && !write)) { @@ -260,17 +283,17 @@ return -EFAULT; buf[sizeof(buf) - 1] = '\0'; cmm_skip_blanks(buf, &p); - pages = simple_strtoul(p, &p, 0); + nr = simple_strtoul(p, &p, 0); if (ctl == &cmm_table[0]) - cmm_set_pages(pages); + cmm_set_pages(nr); else - cmm_add_timed_pages(pages); + cmm_add_timed_pages(nr); } else { if (ctl == &cmm_table[0]) - pages = cmm_get_pages(); + nr = cmm_get_pages(); else - pages = cmm_get_timed_pages(); - len = sprintf(buf, "%ld\n", pages); + nr = cmm_get_timed_pages(); + len = sprintf(buf, "%ld\n", nr); if (len > *lenp) len = *lenp; if (copy_to_user(buffer, buf, len)) @@ -286,7 +309,7 @@ void __user *buffer, size_t *lenp, loff_t *ppos) { char buf[64], *p; - long pages, seconds; + long nr, seconds; int len; if (!*lenp || (*ppos && !write)) { @@ -301,10 +324,10 @@ return -EFAULT; buf[sizeof(buf) - 1] = '\0'; cmm_skip_blanks(buf, &p); - pages = simple_strtoul(p, &p, 0); + nr = simple_strtoul(p, &p, 0); cmm_skip_blanks(p, &p); seconds = simple_strtoul(p, &p, 0); - cmm_set_timeout(pages, seconds); + cmm_set_timeout(nr, seconds); } else { len = sprintf(buf, "%ld %ld\n", cmm_timeout_pages, cmm_timeout_seconds); @@ -357,7 +380,7 @@ static void cmm_smsg_target(char *from, char *msg) { - long pages, seconds; + long nr, seconds; if (strlen(sender) > 0 && strcmp(from, sender) != 0) return; @@ -366,27 +389,27 @@ if (strncmp(msg, "SHRINK", 6) == 0) { if (!cmm_skip_blanks(msg + 6, &msg)) return; - pages = simple_strtoul(msg, &msg, 0); + nr = simple_strtoul(msg, &msg, 0); cmm_skip_blanks(msg, &msg); if (*msg == '\0') - cmm_set_pages(pages); + cmm_set_pages(nr); } else if (strncmp(msg, "RELEASE", 7) == 0) { if (!cmm_skip_blanks(msg + 7, &msg)) return; - pages = simple_strtoul(msg, &msg, 0); + nr = simple_strtoul(msg, &msg, 0); cmm_skip_blanks(msg, &msg); if (*msg == '\0') - cmm_add_timed_pages(pages); + cmm_add_timed_pages(nr); } else if (strncmp(msg, "REUSE", 5) == 0) { if (!cmm_skip_blanks(msg + 5, &msg)) return; - pages = simple_strtoul(msg, &msg, 0); + nr = simple_strtoul(msg, &msg, 0); if (!cmm_skip_blanks(msg, &msg)) return; seconds = simple_strtoul(msg, &msg, 0); cmm_skip_blanks(msg, &msg); if (*msg == '\0') - cmm_set_timeout(pages, seconds); + cmm_set_timeout(nr, seconds); } } #endif @@ -396,21 +419,49 @@ static int cmm_init (void) { + int rc = -ENOMEM; + #ifdef CONFIG_CMM_PROC cmm_sysctl_header = register_sysctl_table(cmm_dir_table, 1); + if (!cmm_sysctl_header) + goto out; #endif #ifdef CONFIG_CMM_IUCV - smsg_register_callback(SMSG_PREFIX, cmm_smsg_target); + rc = smsg_register_callback(SMSG_PREFIX, cmm_smsg_target); + if (rc < 0) + goto out_smsg; #endif - INIT_WORK(&cmm_thread_starter, (void *) cmm_start_thread, NULL); + rc = register_oom_notifier(&cmm_oom_nb); + if (rc < 0) + goto out_oom_notify; init_waitqueue_head(&cmm_thread_wait); init_timer(&cmm_timer); - return 0; + cmm_thread_ptr = kthread_run(cmm_thread, NULL, "cmmthread"); + rc = IS_ERR(cmm_thread_ptr) ? PTR_ERR(cmm_thread_ptr) : 0; + if (!rc) + goto out; + /* + * kthread_create failed. undo all the stuff from above again. + */ + unregister_oom_notifier(&cmm_oom_nb); + +out_oom_notify: +#ifdef CONFIG_CMM_IUCV + smsg_unregister_callback(SMSG_PREFIX, cmm_smsg_target); +out_smsg: +#endif +#ifdef CONFIG_CMM_PROC + unregister_sysctl_table(cmm_sysctl_header); +#endif +out: + return rc; } static void cmm_exit(void) { + kthread_stop(cmm_thread_ptr); + unregister_oom_notifier(&cmm_oom_nb); cmm_free_pages(cmm_pages, &cmm_pages, &cmm_page_list); cmm_free_pages(cmm_timed_pages, &cmm_timed_pages, &cmm_timed_page_list); #ifdef CONFIG_CMM_PROC
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 1a0db1d..1cc5c9b 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig
@@ -8,6 +8,7 @@ config SUPERH bool default y + select EMBEDDED help The SuperH is a RISC processor targeted for use in embedded systems and consumer electronics; it was also used in the Sega Dreamcast @@ -51,18 +52,23 @@ menu "System type" +config SOLUTION_ENGINE + bool + choice prompt "SuperH system type" default SH_UNKNOWN config SH_SOLUTION_ENGINE bool "SolutionEngine" + select SOLUTION_ENGINE help Select SolutionEngine if configuring for a Hitachi SH7709 or SH7750 evaluation board. config SH_7751_SOLUTION_ENGINE bool "SolutionEngine7751" + select SOLUTION_ENGINE select CPU_SUBTYPE_SH7751 help Select 7751 SolutionEngine if configuring for a Hitachi SH7751 @@ -70,17 +76,27 @@ config SH_7300_SOLUTION_ENGINE bool "SolutionEngine7300" + select SOLUTION_ENGINE select CPU_SUBTYPE_SH7300 help - Select 7300 SolutionEngine if configuring for a Hitachi SH7300(SH-Mobile V) - evaluation board. + Select 7300 SolutionEngine if configuring for a Hitachi + SH7300(SH-Mobile V) evaluation board. + +config SH_7343_SOLUTION_ENGINE + bool "SolutionEngine7343" + select SOLUTION_ENGINE + select CPU_SUBTYPE_SH7343 + help + Select 7343 SolutionEngine if configuring for a Hitachi + SH7343 (SH-Mobile 3AS) evaluation board. config SH_73180_SOLUTION_ENGINE bool "SolutionEngine73180" - select CPU_SUBTYPE_SH73180 - help - Select 73180 SolutionEngine if configuring for a Hitachi SH73180(SH-Mobile 3) - evaluation board. + select SOLUTION_ENGINE + select CPU_SUBTYPE_SH73180 + help + Select 73180 SolutionEngine if configuring for a Hitachi + SH73180(SH-Mobile 3) evaluation board. config SH_7751_SYSTEMH bool "SystemH7751R" @@ -89,12 +105,6 @@ Select SystemH if you are configuring for a Renesas SystemH 7751R evaluation board. -config SH_STB1_HARP - bool "STB1_Harp" - -config SH_STB1_OVERDRIVE - bool "STB1_Overdrive" - config SH_HP6XX bool "HP6XX" help @@ -102,19 +112,6 @@ More information (hardware only) at <http://www.hp.com/jornada/>. -config SH_CQREEK - bool "CqREEK" - help - Select CqREEK if configuring for a CqREEK SH7708 or SH7750. - More information at - <http://sources.redhat.com/ecos/hardware.html#SuperH>. - -config SH_DMIDA - bool "DMIDA" - help - Select DMIDA if configuring for a DataMyte 4000 Industrial - Digital Assistant. More information at <http://www.dmida.com/>. - config SH_EC3104 bool "EC3104" help @@ -136,25 +133,9 @@ <http://www.m17n.org/linux-sh/dreamcast/>. There is a Dreamcast project is at <http://linuxdc.sourceforge.net/>. -config SH_CAT68701 - bool "CAT68701" - config SH_BIGSUR bool "BigSur" -config SH_SH2000 - bool "SH2000" - select CPU_SUBTYPE_SH7709 - help - SH-2000 is a single-board computer based around SH7709A chip - intended for embedded applications. - It has an Ethernet interface (CS8900A), direct connected - Compact Flash socket, three serial ports and PC-104 bus. - More information at <http://sh2000.sh-linux.org>. - -config SH_ADX - bool "ADX" - config SH_MPC1211 bool "Interface MPC1211" help @@ -184,6 +165,13 @@ Select HS7751RVOIP if configuring for a Renesas Technology Sales VoIP board. +config SH_7710VOIPGW + bool "SH7710-VOIP-GW" + select CPU_SUBTYPE_SH7710 + help + Select this option to build a kernel for the SH7710 based + VOIP GW. + config SH_RTS7751R2D bool "RTS7751R2D" select CPU_SUBTYPE_SH7751R @@ -222,6 +210,12 @@ Select Titan if you are configuring for a Nimble Microsystems NetEngine NP51R. +config SH_SHMIN + bool "SHMIN" + select CPU_SUBTYPE_SH7706 + help + Select SHMIN if configureing for the SHMIN board + config SH_UNKNOWN bool "BareCPU" help @@ -238,35 +232,9 @@ source "arch/sh/mm/Kconfig" -config MEMORY_START - hex "Physical memory start address" - default "0x08000000" - ---help--- - Computers built with Hitachi SuperH processors always - map the ROM starting at address zero. But the processor - does not specify the range that RAM takes. - - The physical memory (RAM) start address will be automatically - set to 08000000. Other platforms, such as the Solution Engine - boards typically map RAM at 0C000000. - - Tweak this only when porting to a new machine which does not - already have a defconfig. Changing it from the known correct - value on any of the known systems will only lead to disaster. - -config MEMORY_SIZE - hex "Physical memory size" - default "0x00400000" - help - This sets the default memory size assumed by your SH kernel. It can - be overridden as normal by the 'mem=' argument on the kernel command - line. If unsure, consult your board specifications or just leave it - as 0x00400000 which was the default value before this became - configurable. - config CF_ENABLER bool "Compact Flash Enabler support" - depends on SH_ADX || SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_CAT68701 || SH_SH03 + depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03 ---help--- Compact Flash is a small, removable mass storage device introduced in 1994 originally as a PCMCIA device. If you say `Y' here, you @@ -294,7 +262,7 @@ - "Area5" if CompactFlash is connected to Area 5 (0x14000000) - "Area6" if it is connected to Area 6 (0x18000000) - "Area6" will work for most boards. For ADX, select "Area5". + "Area6" will work for most boards. config CF_AREA6 bool "Area6" @@ -316,19 +284,6 @@ endian byte order. These modes require different kernels. Say Y if your machine is little endian, N if it's a big endian machine. -# The SH7750 RTC module is disabled in the Dreamcast -config SH_RTC - bool - depends on !SH_DREAMCAST && !SH_SATURN && !SH_7300_SOLUTION_ENGINE && \ - !SH_73180_SOLUTION_ENGINE && !SH_LANDISK && \ - !SH_R7780RP - default y - help - Selecting this option will allow the Linux kernel to emulate - PC's RTC. - - If unsure, say N. - config SH_FPU bool "FPU support" depends on !CPU_SH3 @@ -339,14 +294,22 @@ This option must be set in order to enable the FPU. +config SH_FPU_EMU + bool "FPU emulation support" + depends on !SH_FPU && EXPERIMENTAL + default n + help + Selecting this option will enable support for software FPU emulation. + Most SH-3 users will want to say Y here, whereas most SH-4 users will + want to say N. + config SH_DSP bool "DSP support" - depends on !CPU_SH4 - default y + default y if SH4AL_DSP || !CPU_SH4 + default n help Selecting this option will enable support for SH processors that - have DSP units (ie, SH2-DSP and SH3-DSP). It is safe to say Y here - by default, as the existance of the DSP will be probed at runtime. + have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP). This option must be set in order to enable the DSP. @@ -373,6 +336,9 @@ config CPU_HAS_PINT_IRQ bool +config CPU_HAS_MASKREG_IRQ + bool + config CPU_HAS_INTC2_IRQ bool @@ -400,16 +366,19 @@ endmenu -#source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" +source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" -#source "arch/sh/boards/renesas/rts7751r2d/Kconfig" +source "arch/sh/boards/renesas/rts7751r2d/Kconfig" + +source "arch/sh/boards/renesas/r7780rp/Kconfig" config SH_PCLK_FREQ int "Peripheral clock frequency (in Hz)" default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 default "60000000" if CPU_SUBTYPE_SH7751 - default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7760 - default "27000000" if CPU_SUBTYPE_SH73180 + default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \ + CPU_SUBTYPE_SH7760 + default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343 default "66000000" if CPU_SUBTYPE_SH4_202 help This option is used to specify the peripheral clock frequency. @@ -440,10 +409,8 @@ config HEARTBEAT bool "Heartbeat LED" - depends on SH_MPC1211 || SH_SH03 || SH_CAT68701 || \ - SH_STB1_HARP || SH_STB1_OVERDRIVE || SH_BIGSUR || \ - SH_7751_SOLUTION_ENGINE || SH_7300_SOLUTION_ENGINE || \ - SH_73180_SOLUTION_ENGINE || SH_SOLUTION_ENGINE || \ + depends on SH_MPC1211 || SH_SH03 || \ + SH_BIGSUR || SOLUTION_ENGINE || \ SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK help Use the power-on LED on your machine as a load meter. The exact @@ -459,6 +426,8 @@ menu "Kernel features" +source kernel/Kconfig.hz + config KEXEC bool "kexec system call (EXPERIMENTAL)" depends on EXPERIMENTAL @@ -476,10 +445,6 @@ support. As of this writing the exact hardware interface is strongly in flux, so no good recommendation can be made. -config PREEMPT - bool "Preemptible Kernel (EXPERIMENTAL)" - depends on EXPERIMENTAL - config SMP bool "Symmetric multi-processing support" ---help--- @@ -515,6 +480,8 @@ This is purely to save memory - each supported CPU adds approximately eight kilobytes to the kernel image. +source "kernel/Kconfig.preempt" + config CPU_HAS_SR_RB bool "CPU has SR.RB" depends on CPU_SH3 || CPU_SH4 @@ -636,6 +603,16 @@ endmenu +menu "Power management options (EXPERIMENTAL)" +depends on EXPERIMENTAL + +source kernel/power/Kconfig + +config APM + bool "Advanced Power Management Emulation" + depends on PM +endmenu + source "net/Kconfig" source "drivers/Kconfig"
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug index 8fb31ab..48479e0 100644 --- a/arch/sh/Kconfig.debug +++ b/arch/sh/Kconfig.debug
@@ -30,8 +30,35 @@ when the kernel may crash or hang before the serial console is initialised. If unsure, say N. +config DEBUG_STACKOVERFLOW + bool "Check for stack overflows" + depends on DEBUG_KERNEL + help + This option will cause messages to be printed if free stack space + drops below a certain limit. + +config DEBUG_STACK_USAGE + bool "Stack utilization instrumentation" + depends on DEBUG_KERNEL + help + Enables the display of the minimum amount of free stack which each + task has ever had available in the sysrq-T and sysrq-P debug output. + + This option will slow down process creation somewhat. + +config 4KSTACKS + bool "Use 4Kb for kernel stacks instead of 8Kb" + depends on DEBUG_KERNEL + help + If you say Y here the kernel will use a 4Kb stacksize for the + kernel stack attached to each process/thread. This facilitates + running more threads on a system and also reduces the pressure + on the VM subsystem for higher order allocations. This option + will also use IRQ stacks to compensate for the reduced stackspace. + config KGDB bool "Include KGDB kernel debugger" + select FRAME_POINTER help Include in-kernel hooks for kgdb, the Linux kernel source level debugger. See <http://kgdb.sourceforge.net/> for more information. @@ -112,13 +139,4 @@ endmenu -config FRAME_POINTER - bool "Compile the kernel with frame pointers" - default y if KGDB - help - If you say Y here the resulting kernel image will be slightly larger - and slower, but it will give very useful debugging information. - If you don't debug the kernel, you can say N, but we may not be able - to solve problems without frame pointers. - endmenu
diff --git a/arch/sh/Makefile b/arch/sh/Makefile index e467a45..26d62ff 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile
@@ -18,11 +18,13 @@ cflags-$(CONFIG_CPU_LITTLE_ENDIAN) := -ml isa-y := any +isa-$(CONFIG_SH_DSP) := sh isa-$(CONFIG_CPU_SH2) := sh2 +isa-$(CONFIG_CPU_SH2A) := sh2a isa-$(CONFIG_CPU_SH3) := sh3 isa-$(CONFIG_CPU_SH4) := sh4 isa-$(CONFIG_CPU_SH4A) := sh4a -isa-$(CONFIG_CPU_SH2A) := sh2a +isa-$(CONFIG_CPU_SH4AL_DSP) := sh4al isa-$(CONFIG_SH_DSP) := $(isa-y)-dsp @@ -30,9 +32,11 @@ isa-y := $(isa-y)-nommu endif +ifndef CONFIG_SH_DSP ifndef CONFIG_SH_FPU isa-y := $(isa-y)-nofpu endif +endif cflags-y += $(call as-option,-Wa$(comma)-isa=$(isa-y),) @@ -79,24 +83,19 @@ LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) core-y += arch/sh/kernel/ arch/sh/mm/ +core-$(CONFIG_SH_FPU_EMU) += arch/sh/math-emu/ # Boards machdir-$(CONFIG_SH_SOLUTION_ENGINE) := se/770x machdir-$(CONFIG_SH_7751_SOLUTION_ENGINE) := se/7751 machdir-$(CONFIG_SH_7300_SOLUTION_ENGINE) := se/7300 +machdir-$(CONFIG_SH_7343_SOLUTION_ENGINE) := se/7343 machdir-$(CONFIG_SH_73180_SOLUTION_ENGINE) := se/73180 -machdir-$(CONFIG_SH_STB1_HARP) := harp -machdir-$(CONFIG_SH_STB1_OVERDRIVE) := overdrive machdir-$(CONFIG_SH_HP6XX) := hp6xx -machdir-$(CONFIG_SH_CQREEK) := cqreek -machdir-$(CONFIG_SH_DMIDA) := dmida machdir-$(CONFIG_SH_EC3104) := ec3104 machdir-$(CONFIG_SH_SATURN) := saturn machdir-$(CONFIG_SH_DREAMCAST) := dreamcast -machdir-$(CONFIG_SH_CAT68701) := cat68701 machdir-$(CONFIG_SH_BIGSUR) := bigsur -machdir-$(CONFIG_SH_SH2000) := sh2000 -machdir-$(CONFIG_SH_ADX) := adx machdir-$(CONFIG_SH_MPC1211) := mpc1211 machdir-$(CONFIG_SH_SH03) := sh03 machdir-$(CONFIG_SH_SECUREEDGE5410) := snapgear @@ -104,16 +103,16 @@ machdir-$(CONFIG_SH_RTS7751R2D) := renesas/rts7751r2d machdir-$(CONFIG_SH_7751_SYSTEMH) := renesas/systemh machdir-$(CONFIG_SH_EDOSK7705) := renesas/edosk7705 +machdir-$(CONFIG_SH_R7780RP) := renesas/r7780rp +machdir-$(CONFIG_SH_7710VOIPGW) := renesas/sh7710voipgw machdir-$(CONFIG_SH_SH4202_MICRODEV) := superh/microdev +machdir-$(CONFIG_SH_LANDISK) := landisk +machdir-$(CONFIG_SH_TITAN) := titan +machdir-$(CONFIG_SH_SHMIN) := shmin machdir-$(CONFIG_SH_UNKNOWN) := unknown incdir-y := $(notdir $(machdir-y)) - -incdir-$(CONFIG_SH_SOLUTION_ENGINE) := se -incdir-$(CONFIG_SH_7751_SOLUTION_ENGINE) := se7751 -incdir-$(CONFIG_SH_7300_SOLUTION_ENGINE) := se7300 -incdir-$(CONFIG_SH_73180_SOLUTION_ENGINE) := se73180 -incdir-$(CONFIG_SH_HP600) := hp6xx +incdir-$(CONFIG_SH_HP6XX) := hp6xx ifneq ($(machdir-y),) core-y += arch/sh/boards/$(machdir-y)/ @@ -137,17 +136,14 @@ CPPFLAGS_vmlinux.lds := -traditional -ifneq ($(KBUILD_SRC),) incdir-prefix := $(srctree)/include/asm-sh/ -else -incdir-prefix := -endif # Update machine arch and proc symlinks if something which affects # them changed. We use .arch and .mach to indicate when they were # updated last, otherwise make uses the target directory mtime. -include/asm-sh/.cpu: $(wildcard include/config/cpu/*.h) include/config/auto.conf +include/asm-sh/.cpu: $(wildcard include/config/cpu/*.h) \ + include/config/auto.conf FORCE @echo ' SYMLINK include/asm-sh/cpu -> include/asm-sh/$(cpuincdir-y)' $(Q)if [ ! -d include/asm-sh ]; then mkdir -p include/asm-sh; fi $(Q)ln -fsn $(incdir-prefix)$(cpuincdir-y) include/asm-sh/cpu @@ -157,7 +153,8 @@ # don't, just reference the parent directory so the semantics are # kept roughly the same. -include/asm-sh/.mach: $(wildcard include/config/sh/*.h) include/config/auto.conf +include/asm-sh/.mach: $(wildcard include/config/sh/*.h) \ + include/config/auto.conf FORCE @echo -n ' SYMLINK include/asm-sh/mach -> ' $(Q)if [ ! -d include/asm-sh ]; then mkdir -p include/asm-sh; fi $(Q)if [ -d $(incdir-prefix)$(incdir-y) ]; then \ @@ -170,7 +167,7 @@ fi @touch $@ -archprepare: maketools include/asm-sh/.cpu include/asm-sh/.mach +archprepare: include/asm-sh/.cpu include/asm-sh/.mach maketools PHONY += maketools FORCE maketools: include/linux/version.h FORCE @@ -191,4 +188,3 @@ define archhelp @echo ' zImage - Compressed kernel image (arch/sh/boot/zImage)' endef -
diff --git a/arch/sh/boards/adx/Makefile b/arch/sh/boards/adx/Makefile deleted file mode 100644 index 5b1c531..0000000 --- a/arch/sh/boards/adx/Makefile +++ /dev/null
@@ -1,6 +0,0 @@ -# -# Makefile for ADX boards -# - -obj-y := setup.o irq.o irq_maskreq.o -
diff --git a/arch/sh/boards/adx/irq.c b/arch/sh/boards/adx/irq.c deleted file mode 100644 index c6ca409..0000000 --- a/arch/sh/boards/adx/irq.c +++ /dev/null
@@ -1,31 +0,0 @@ -/* - * linux/arch/sh/boards/adx/irq.c - * - * Copyright (C) 2001 A&D Co., Ltd. - * - * I/O routine and setup routines for A&D ADX Board - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - */ - -#include <asm/irq.h> - -void init_adx_IRQ(void) -{ - int i; - -/* printk("init_adx_IRQ()\n");*/ - /* setup irq_mask_register */ - irq_mask_register = (unsigned short *)0xa6000008; - - /* cover all external interrupt area by maskreg_irq_type - * (Actually, irq15 doesn't exist) - */ - for (i = 0; i < 16; i++) { - make_maskreg_irq(i); - disable_irq(i); - } -}
diff --git a/arch/sh/boards/adx/setup.c b/arch/sh/boards/adx/setup.c deleted file mode 100644 index 4938d95..0000000 --- a/arch/sh/boards/adx/setup.c +++ /dev/null
@@ -1,56 +0,0 @@ -/* - * linux/arch/sh/board/adx/setup.c - * - * Copyright (C) 2001 A&D Co., Ltd. - * - * I/O routine and setup routines for A&D ADX Board - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - */ - -#include <asm/machvec.h> -#include <linux/module.h> - -extern void init_adx_IRQ(void); -extern void *cf_io_base; - -const char *get_system_type(void) -{ - return "A&D ADX"; -} - -unsigned long adx_isa_port2addr(unsigned long offset) -{ - /* CompactFlash (IDE) */ - if (((offset >= 0x1f0) && (offset <= 0x1f7)) || (offset == 0x3f6)) { - return (unsigned long)cf_io_base + offset; - } - - /* eth0 */ - if ((offset >= 0x300) && (offset <= 0x30f)) { - return 0xa5000000 + offset; /* COMM BOARD (AREA1) */ - } - - return offset + 0xb0000000; /* IOBUS (AREA 4)*/ -} - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_adx __initmv = { - .mv_nr_irqs = 48, - .mv_isa_port2addr = adx_isa_port2addr, - .mv_init_irq = init_adx_IRQ, -}; -ALIAS_MV(adx) - -int __init platform_setup(void) -{ - /* Nothing to see here .. */ - return 0; -} -
diff --git a/arch/sh/boards/bigsur/irq.c b/arch/sh/boards/bigsur/irq.c index ac946a2..1ab04da 100644 --- a/arch/sh/boards/bigsur/irq.c +++ b/arch/sh/boards/bigsur/irq.c
@@ -19,6 +19,7 @@ * IRQ functions for a Hitachi Big Sur Evaluation Board. * */ +#undef DEBUG #include <linux/sched.h> #include <linux/module.h> @@ -41,10 +42,8 @@ #undef BIGSUR_DEBUG #ifdef BIGSUR_DEBUG -#define DPRINTK(args...) printk(args) #define DIPRINTK(n, args...) if (BIGSUR_DEBUG>(n)) printk(args) #else -#define DPRINTK(args...) #define DIPRINTK(n, args...) #endif /* BIGSUR_DEBUG */ @@ -60,45 +59,39 @@ /* Level 1 IRQ routines */ static void disable_bigsur_l1irq(unsigned int irq) { - unsigned long flags; unsigned char mask; unsigned int mask_port = ((irq - BIGSUR_IRQ_LOW)/8) ? BIGSUR_IRLMR1 : BIGSUR_IRLMR0; unsigned char bit = (1 << ((irq - MGATE_IRQ_LOW)%8) ); if(irq >= BIGSUR_IRQ_LOW && irq < BIGSUR_IRQ_HIGH) { - DPRINTK("Disable L1 IRQ %d\n", irq); + pr_debug("Disable L1 IRQ %d\n", irq); DIPRINTK(2,"disable_bigsur_l1irq: IMR=0x%08x mask=0x%x\n", mask_port, bit); - local_irq_save(flags); /* Disable IRQ - set mask bit */ mask = inb(mask_port) | bit; outb(mask, mask_port); - local_irq_restore(flags); return; } - DPRINTK("disable_bigsur_l1irq: Invalid IRQ %d\n", irq); + pr_debug("disable_bigsur_l1irq: Invalid IRQ %d\n", irq); } static void enable_bigsur_l1irq(unsigned int irq) { - unsigned long flags; unsigned char mask; unsigned int mask_port = ((irq - BIGSUR_IRQ_LOW)/8) ? BIGSUR_IRLMR1 : BIGSUR_IRLMR0; unsigned char bit = (1 << ((irq - MGATE_IRQ_LOW)%8) ); if(irq >= BIGSUR_IRQ_LOW && irq < BIGSUR_IRQ_HIGH) { - DPRINTK("Enable L1 IRQ %d\n", irq); + pr_debug("Enable L1 IRQ %d\n", irq); DIPRINTK(2,"enable_bigsur_l1irq: IMR=0x%08x mask=0x%x\n", mask_port, bit); - local_irq_save(flags); /* Enable L1 IRQ - clear mask bit */ mask = inb(mask_port) & ~bit; outb(mask, mask_port); - local_irq_restore(flags); return; } - DPRINTK("enable_bigsur_l1irq: Invalid IRQ %d\n", irq); + pr_debug("enable_bigsur_l1irq: Invalid IRQ %d\n", irq); } @@ -126,51 +119,45 @@ /* Level 2 IRQ routines */ static void disable_bigsur_l2irq(unsigned int irq) { - unsigned long flags; unsigned char mask; unsigned char bit = 1 << ((irq-BIGSUR_2NDLVL_IRQ_LOW)%8); unsigned int mask_port = imr_base - REG_NUM(irq)*imr_offset; - if(irq >= BIGSUR_2NDLVL_IRQ_LOW && irq < BIGSUR_2NDLVL_IRQ_HIGH) { - DPRINTK("Disable L2 IRQ %d\n", irq); + if(irq >= BIGSUR_2NDLVL_IRQ_LOW && irq < BIGSUR_2NDLVL_IRQ_HIGH) { + pr_debug("Disable L2 IRQ %d\n", irq); DIPRINTK(2,"disable_bigsur_l2irq: IMR=0x%08x mask=0x%x\n", mask_port, bit); - local_irq_save(flags); /* Disable L2 IRQ - set mask bit */ mask = inb(mask_port) | bit; outb(mask, mask_port); - local_irq_restore(flags); return; } - DPRINTK("disable_bigsur_l2irq: Invalid IRQ %d\n", irq); + pr_debug("disable_bigsur_l2irq: Invalid IRQ %d\n", irq); } static void enable_bigsur_l2irq(unsigned int irq) { - unsigned long flags; unsigned char mask; unsigned char bit = 1 << ((irq-BIGSUR_2NDLVL_IRQ_LOW)%8); unsigned int mask_port = imr_base - REG_NUM(irq)*imr_offset; - if(irq >= BIGSUR_2NDLVL_IRQ_LOW && irq < BIGSUR_2NDLVL_IRQ_HIGH) { - DPRINTK("Enable L2 IRQ %d\n", irq); + if(irq >= BIGSUR_2NDLVL_IRQ_LOW && irq < BIGSUR_2NDLVL_IRQ_HIGH) { + pr_debug("Enable L2 IRQ %d\n", irq); DIPRINTK(2,"enable_bigsur_l2irq: IMR=0x%08x mask=0x%x\n", mask_port, bit); - local_irq_save(flags); /* Enable L2 IRQ - clear mask bit */ mask = inb(mask_port) & ~bit; outb(mask, mask_port); - local_irq_restore(flags); return; } - DPRINTK("enable_bigsur_l2irq: Invalid IRQ %d\n", irq); + pr_debug("enable_bigsur_l2irq: Invalid IRQ %d\n", irq); } static void mask_and_ack_bigsur(unsigned int irq) { - DPRINTK("mask_and_ack_bigsur IRQ %d\n", irq); + pr_debug("mask_and_ack_bigsur IRQ %d\n", irq); if(irq >= BIGSUR_IRQ_LOW && irq < BIGSUR_IRQ_HIGH) disable_bigsur_l1irq(irq); else @@ -179,7 +166,7 @@ static void end_bigsur_irq(unsigned int irq) { - DPRINTK("end_bigsur_irq IRQ %d\n", irq); + pr_debug("end_bigsur_irq IRQ %d\n", irq); if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) { if(irq >= BIGSUR_IRQ_LOW && irq < BIGSUR_IRQ_HIGH) enable_bigsur_l1irq(irq); @@ -193,7 +180,7 @@ u8 mask; u32 reg; - DPRINTK("startup_bigsur_irq IRQ %d\n", irq); + pr_debug("startup_bigsur_irq IRQ %d\n", irq); if(irq >= BIGSUR_IRQ_LOW && irq < BIGSUR_IRQ_HIGH) { /* Enable the L1 IRQ */ @@ -218,7 +205,7 @@ static void shutdown_bigsur_irq(unsigned int irq) { - DPRINTK("shutdown_bigsur_irq IRQ %d\n", irq); + pr_debug("shutdown_bigsur_irq IRQ %d\n", irq); if(irq >= BIGSUR_IRQ_LOW && irq < BIGSUR_IRQ_HIGH) disable_bigsur_l1irq(irq); else @@ -260,7 +247,7 @@ disable_bigsur_l1irq(irq); return; } - DPRINTK("make_bigsur_l1isr: bad irq, %d\n", irq); + pr_debug("make_bigsur_l1isr: bad irq, %d\n", irq); return; } @@ -277,7 +264,7 @@ disable_bigsur_l2irq(irq); return; } - DPRINTK("make_bigsur_l2isr: bad irq, %d\n", irq); + pr_debug("make_bigsur_l2isr: bad irq, %d\n", irq); return; }
diff --git a/arch/sh/boards/bigsur/setup.c b/arch/sh/boards/bigsur/setup.c index dfeede9..9711c20 100644 --- a/arch/sh/boards/bigsur/setup.c +++ b/arch/sh/boards/bigsur/setup.c
@@ -41,31 +41,7 @@ // Big Sur Init Routines /*===========================================================*/ -const char *get_system_type(void) -{ - return "Big Sur"; -} - -/* - * The Machine Vector - */ -extern void heartbeat_bigsur(void); -extern void init_bigsur_IRQ(void); - -struct sh_machine_vector mv_bigsur __initmv = { - .mv_nr_irqs = NR_IRQS, // Defined in <asm/irq.h> - - .mv_isa_port2addr = bigsur_isa_port2addr, - .mv_irq_demux = bigsur_irq_demux, - - .mv_init_irq = init_bigsur_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_bigsur, -#endif -}; -ALIAS_MV(bigsur) - -int __init platform_setup(void) +static void __init bigsur_setup(char **cmdline_p) { /* Mask all 2nd level IRQ's */ outb(-1,BIGSUR_IMR0); @@ -89,7 +65,24 @@ outw(1, BIGSUR_ETHR+0xe); /* set the IO port to BIGSUR_ETHER_IOPORT */ outw(BIGSUR_ETHER_IOPORT<<3, BIGSUR_ETHR+0x2); - - return 0; } +/* + * The Machine Vector + */ +extern void heartbeat_bigsur(void); +extern void init_bigsur_IRQ(void); + +struct sh_machine_vector mv_bigsur __initmv = { + .mv_name = "Big Sur", + .mv_setup = bigsur_setup, + + .mv_isa_port2addr = bigsur_isa_port2addr, + .mv_irq_demux = bigsur_irq_demux, + + .mv_init_irq = init_bigsur_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_bigsur, +#endif +}; +ALIAS_MV(bigsur)
diff --git a/arch/sh/boards/cat68701/Makefile b/arch/sh/boards/cat68701/Makefile deleted file mode 100644 index 52c1de0..0000000 --- a/arch/sh/boards/cat68701/Makefile +++ /dev/null
@@ -1,6 +0,0 @@ -# -# Makefile for the CAT-68701 specific parts of the kernel -# - -obj-y := setup.o irq.o -
diff --git a/arch/sh/boards/cat68701/irq.c b/arch/sh/boards/cat68701/irq.c deleted file mode 100644 index f9a6d18..0000000 --- a/arch/sh/boards/cat68701/irq.c +++ /dev/null
@@ -1,28 +0,0 @@ -/* - * linux/arch/sh/boards/cat68701/irq.c - * - * Copyright (C) 2000 Niibe Yutaka - * 2001 Yutaro Ebihara - * - * Setup routines for A-ONE Corp CAT-68701 SH7708 Board - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - */ - -#include <asm/irq.h> - -int cat68701_irq_demux(int irq) -{ - if(irq==13) return 14; - if(irq==7) return 10; - return irq; -} - -void init_cat68701_IRQ() -{ - make_imask_irq(10); - make_imask_irq(14); -}
diff --git a/arch/sh/boards/cat68701/setup.c b/arch/sh/boards/cat68701/setup.c deleted file mode 100644 index 90e5175..0000000 --- a/arch/sh/boards/cat68701/setup.c +++ /dev/null
@@ -1,85 +0,0 @@ -/* - * linux/arch/sh/boards/cat68701/setup.c - * - * Copyright (C) 2000 Niibe Yutaka - * 2001 Yutaro Ebihara - * - * Setup routines for A-ONE Corp CAT-68701 SH7708 Board - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - */ - -#include <asm/io.h> -#include <asm/machvec.h> -#include <asm/mach/io.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/sched.h> - -const char *get_system_type(void) -{ - return "CAT-68701"; -} - -#ifdef CONFIG_HEARTBEAT -void heartbeat_cat68701() -{ - static unsigned int cnt = 0, period = 0 , bit = 0; - cnt += 1; - if (cnt < period) { - return; - } - cnt = 0; - - /* Go through the points (roughly!): - * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110 - */ - period = 110 - ( (300<<FSHIFT)/ - ((avenrun[0]/5) + (3<<FSHIFT)) ); - - if(bit){ bit=0; }else{ bit=1; } - outw(bit<<15,0x3fe); -} -#endif /* CONFIG_HEARTBEAT */ - -unsigned long cat68701_isa_port2addr(unsigned long offset) -{ - /* CompactFlash (IDE) */ - if (((offset >= 0x1f0) && (offset <= 0x1f7)) || (offset==0x3f6)) - return 0xba000000 + offset; - - /* INPUT PORT */ - if ((offset >= 0x3fc) && (offset <= 0x3fd)) - return 0xb4007000 + offset; - - /* OUTPUT PORT */ - if ((offset >= 0x3fe) && (offset <= 0x3ff)) - return 0xb4007400 + offset; - - return offset + 0xb4000000; /* other I/O (EREA 5)*/ -} - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_cat68701 __initmv = { - .mv_nr_irqs = 32, - .mv_isa_port2addr = cat68701_isa_port2addr, - .mv_irq_demux = cat68701_irq_demux, - - .mv_init_irq = init_cat68701_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_cat68701, -#endif -}; -ALIAS_MV(cat68701) - -int __init platform_setup(void) -{ - /* dummy read erea5 (CS8900A) */ -} -
diff --git a/arch/sh/boards/cqreek/Makefile b/arch/sh/boards/cqreek/Makefile deleted file mode 100644 index 1a788a8..0000000 --- a/arch/sh/boards/cqreek/Makefile +++ /dev/null
@@ -1,6 +0,0 @@ -# -# Makefile for the CqREEK specific parts of the kernel -# - -obj-y := setup.o irq.o -
diff --git a/arch/sh/boards/cqreek/irq.c b/arch/sh/boards/cqreek/irq.c deleted file mode 100644 index 2955adc..0000000 --- a/arch/sh/boards/cqreek/irq.c +++ /dev/null
@@ -1,128 +0,0 @@ -/* $Id: irq.c,v 1.1.2.4 2002/11/04 20:33:56 lethal Exp $ - * - * arch/sh/boards/cqreek/irq.c - * - * Copyright (C) 2000 Niibe Yutaka - * - * CqREEK IDE/ISA Bridge Support. - * - */ - -#include <linux/irq.h> -#include <linux/init.h> - -#include <asm/cqreek/cqreek.h> -#include <asm/io.h> -#include <asm/io_generic.h> -#include <asm/irq.h> -#include <asm/machvec.h> -#include <asm/machvec_init.h> -#include <asm/rtc.h> - -struct cqreek_irq_data { - unsigned short mask_port; /* Port of Interrupt Mask Register */ - unsigned short stat_port; /* Port of Interrupt Status Register */ - unsigned short bit; /* Value of the bit */ -}; -static struct cqreek_irq_data cqreek_irq_data[NR_IRQS]; - -static void disable_cqreek_irq(unsigned int irq) -{ - unsigned long flags; - unsigned short mask; - unsigned short mask_port = cqreek_irq_data[irq].mask_port; - unsigned short bit = cqreek_irq_data[irq].bit; - - local_irq_save(flags); - /* Disable IRQ */ - mask = inw(mask_port) & ~bit; - outw_p(mask, mask_port); - local_irq_restore(flags); -} - -static void enable_cqreek_irq(unsigned int irq) -{ - unsigned long flags; - unsigned short mask; - unsigned short mask_port = cqreek_irq_data[irq].mask_port; - unsigned short bit = cqreek_irq_data[irq].bit; - - local_irq_save(flags); - /* Enable IRQ */ - mask = inw(mask_port) | bit; - outw_p(mask, mask_port); - local_irq_restore(flags); -} - -static void mask_and_ack_cqreek(unsigned int irq) -{ - unsigned short stat_port = cqreek_irq_data[irq].stat_port; - unsigned short bit = cqreek_irq_data[irq].bit; - - disable_cqreek_irq(irq); - /* Clear IRQ (it might be edge IRQ) */ - inw(stat_port); - outw_p(bit, stat_port); -} - -static void end_cqreek_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - enable_cqreek_irq(irq); -} - -static unsigned int startup_cqreek_irq(unsigned int irq) -{ - enable_cqreek_irq(irq); - return 0; -} - -static void shutdown_cqreek_irq(unsigned int irq) -{ - disable_cqreek_irq(irq); -} - -static struct hw_interrupt_type cqreek_irq_type = { - .typename = "CqREEK-IRQ", - .startup = startup_cqreek_irq, - .shutdown = shutdown_cqreek_irq, - .enable = enable_cqreek_irq, - .disable = disable_cqreek_irq, - .ack = mask_and_ack_cqreek, - .end = end_cqreek_irq -}; - -int cqreek_has_ide, cqreek_has_isa; - -/* XXX: This is just for test for my NE2000 ISA board - What we really need is virtualized IRQ and demultiplexer like HP600 port */ -void __init init_cqreek_IRQ(void) -{ - if (cqreek_has_ide) { - cqreek_irq_data[14].mask_port = BRIDGE_IDE_INTR_MASK; - cqreek_irq_data[14].stat_port = BRIDGE_IDE_INTR_STAT; - cqreek_irq_data[14].bit = 1; - - irq_desc[14].chip = &cqreek_irq_type; - irq_desc[14].status = IRQ_DISABLED; - irq_desc[14].action = 0; - irq_desc[14].depth = 1; - - disable_cqreek_irq(14); - } - - if (cqreek_has_isa) { - cqreek_irq_data[10].mask_port = BRIDGE_ISA_INTR_MASK; - cqreek_irq_data[10].stat_port = BRIDGE_ISA_INTR_STAT; - cqreek_irq_data[10].bit = (1 << 10); - - /* XXX: Err... we may need demultiplexer for ISA irq... */ - irq_desc[10].chip = &cqreek_irq_type; - irq_desc[10].status = IRQ_DISABLED; - irq_desc[10].action = 0; - irq_desc[10].depth = 1; - - disable_cqreek_irq(10); - } -} -
diff --git a/arch/sh/boards/cqreek/setup.c b/arch/sh/boards/cqreek/setup.c deleted file mode 100644 index eff4ed9..0000000 --- a/arch/sh/boards/cqreek/setup.c +++ /dev/null
@@ -1,100 +0,0 @@ -/* $Id: setup.c,v 1.5 2003/08/04 01:51:58 lethal Exp $ - * - * arch/sh/kernel/setup_cqreek.c - * - * Copyright (C) 2000 Niibe Yutaka - * - * CqREEK IDE/ISA Bridge Support. - * - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/irq.h> - -#include <asm/mach/cqreek.h> -#include <asm/machvec.h> -#include <asm/io.h> -#include <asm/io_generic.h> -#include <asm/irq.h> -#include <asm/rtc.h> - -#define IDE_OFFSET 0xA4000000UL -#define ISA_OFFSET 0xA4A00000UL - -const char *get_system_type(void) -{ - return "CqREEK"; -} - -static unsigned long cqreek_port2addr(unsigned long port) -{ - if (0x0000<=port && port<=0x0040) - return IDE_OFFSET + port; - if ((0x01f0<=port && port<=0x01f7) || port == 0x03f6) - return IDE_OFFSET + port; - - return ISA_OFFSET + port; -} - -/* - * The Machine Vector - */ -struct sh_machine_vector mv_cqreek __initmv = { -#if defined(CONFIG_CPU_SH4) - .mv_nr_irqs = 48, -#elif defined(CONFIG_CPU_SUBTYPE_SH7708) - .mv_nr_irqs = 32, -#elif defined(CONFIG_CPU_SUBTYPE_SH7709) - .mv_nr_irqs = 61, -#endif - - .mv_init_irq = init_cqreek_IRQ, - - .mv_isa_port2addr = cqreek_port2addr, -}; -ALIAS_MV(cqreek) - -/* - * Initialize the board - */ -void __init platform_setup(void) -{ - int i; -/* udelay is not available at setup time yet... */ -#define DELAY() do {for (i=0; i<10000; i++) ctrl_inw(0xa0000000);} while(0) - - if ((inw (BRIDGE_FEATURE) & 1)) { /* We have IDE interface */ - outw_p(0, BRIDGE_IDE_INTR_LVL); - outw_p(0, BRIDGE_IDE_INTR_MASK); - - outw_p(0, BRIDGE_IDE_CTRL); - DELAY(); - - outw_p(0x8000, BRIDGE_IDE_CTRL); - DELAY(); - - outw_p(0xffff, BRIDGE_IDE_INTR_STAT); /* Clear interrupt status */ - outw_p(0x0f-14, BRIDGE_IDE_INTR_LVL); /* Use 14 IPR */ - outw_p(1, BRIDGE_IDE_INTR_MASK); /* Enable interrupt */ - cqreek_has_ide=1; - } - - if ((inw (BRIDGE_FEATURE) & 2)) { /* We have ISA interface */ - outw_p(0, BRIDGE_ISA_INTR_LVL); - outw_p(0, BRIDGE_ISA_INTR_MASK); - - outw_p(0, BRIDGE_ISA_CTRL); - DELAY(); - outw_p(0x8000, BRIDGE_ISA_CTRL); - DELAY(); - - outw_p(0xffff, BRIDGE_ISA_INTR_STAT); /* Clear interrupt status */ - outw_p(0x0f-10, BRIDGE_ISA_INTR_LVL); /* Use 10 IPR */ - outw_p(0xfff8, BRIDGE_ISA_INTR_MASK); /* Enable interrupt */ - cqreek_has_isa=1; - } - - printk(KERN_INFO "CqREEK Setup (IDE=%d, ISA=%d)...done\n", cqreek_has_ide, cqreek_has_isa); -} -
diff --git a/arch/sh/boards/dmida/Makefile b/arch/sh/boards/dmida/Makefile deleted file mode 100644 index 75999aa..0000000 --- a/arch/sh/boards/dmida/Makefile +++ /dev/null
@@ -1,7 +0,0 @@ -# -# Makefile for the DataMyte Industrial Digital Assistant(tm) specific parts -# of the kernel -# - -obj-y := mach.o -
diff --git a/arch/sh/boards/dmida/mach.c b/arch/sh/boards/dmida/mach.c deleted file mode 100644 index d03a25f9..0000000 --- a/arch/sh/boards/dmida/mach.c +++ /dev/null
@@ -1,59 +0,0 @@ -/* - * linux/arch/sh/boards/dmida/mach.c - * - * by Greg Banks <gbanks@pocketpenguins.com> - * (c) 2000 PocketPenguins Inc - * - * Derived from mach_hp600.c, which bore the message: - * Copyright (C) 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Machine vector for the DataMyte Industrial Digital Assistant(tm). - * See http://www.dmida.com - * - */ - -#include <linux/init.h> - -#include <asm/machvec.h> -#include <asm/rtc.h> -#include <asm/machvec_init.h> - -#include <asm/io.h> -#include <asm/hd64465/hd64465.h> -#include <asm/irq.h> - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_dmida __initmv = { - .mv_nr_irqs = HD64465_IRQ_BASE+HD64465_IRQ_NUM, - - .mv_inb = hd64465_inb, - .mv_inw = hd64465_inw, - .mv_inl = hd64465_inl, - .mv_outb = hd64465_outb, - .mv_outw = hd64465_outw, - .mv_outl = hd64465_outl, - - .mv_inb_p = hd64465_inb_p, - .mv_inw_p = hd64465_inw, - .mv_inl_p = hd64465_inl, - .mv_outb_p = hd64465_outb_p, - .mv_outw_p = hd64465_outw, - .mv_outl_p = hd64465_outl, - - .mv_insb = hd64465_insb, - .mv_insw = hd64465_insw, - .mv_insl = hd64465_insl, - .mv_outsb = hd64465_outsb, - .mv_outsw = hd64465_outsw, - .mv_outsl = hd64465_outsl, - - .mv_irq_demux = hd64465_irq_demux, -}; -ALIAS_MV(dmida) -
diff --git a/arch/sh/boards/dreamcast/irq.c b/arch/sh/boards/dreamcast/irq.c index b10a6b1..5bf01f8 100644 --- a/arch/sh/boards/dreamcast/irq.c +++ b/arch/sh/boards/dreamcast/irq.c
@@ -10,7 +10,6 @@ */ #include <linux/irq.h> - #include <asm/io.h> #include <asm/irq.h> #include <asm/dreamcast/sysasic.h> @@ -26,10 +25,10 @@ event. There are three 32-bit ESRs located at 0xa05f8900 - 0xa05f6908. Event - types can be found in include/asm-sh/dc_sysasic.h. There are three groups - of EMRs that parallel the ESRs. Each EMR group corresponds to an IRQ, so - 0xa05f6910 - 0xa05f6918 triggers IRQ 13, 0xa05f6920 - 0xa05f6928 triggers - IRQ 11, and 0xa05f6930 - 0xa05f6938 triggers IRQ 9. + types can be found in include/asm-sh/dreamcast/sysasic.h. There are three + groups of EMRs that parallel the ESRs. Each EMR group corresponds to an + IRQ, so 0xa05f6910 - 0xa05f6918 triggers IRQ 13, 0xa05f6920 - 0xa05f6928 + triggers IRQ 11, and 0xa05f6930 - 0xa05f6938 triggers IRQ 9. In the kernel, these events are mapped to virtual IRQs so that drivers can respond to them as they would a normal interrupt. In order to keep this @@ -57,29 +56,23 @@ /* Disable the hardware event by masking its bit in its EMR */ static inline void disable_systemasic_irq(unsigned int irq) { - unsigned long flags; __u32 emr = EMR_BASE + (LEVEL(irq) << 4) + (LEVEL(irq) << 2); __u32 mask; - local_irq_save(flags); mask = inl(emr); mask &= ~(1 << EVENT_BIT(irq)); outl(mask, emr); - local_irq_restore(flags); } /* Enable the hardware event by setting its bit in its EMR */ static inline void enable_systemasic_irq(unsigned int irq) { - unsigned long flags; __u32 emr = EMR_BASE + (LEVEL(irq) << 4) + (LEVEL(irq) << 2); __u32 mask; - local_irq_save(flags); mask = inl(emr); mask |= (1 << EVENT_BIT(irq)); outl(mask, emr); - local_irq_restore(flags); } /* Acknowledge a hardware event by writing its bit back to its ESR */
diff --git a/arch/sh/boards/dreamcast/rtc.c b/arch/sh/boards/dreamcast/rtc.c index 379de16..b3a876a 100644 --- a/arch/sh/boards/dreamcast/rtc.c +++ b/arch/sh/boards/dreamcast/rtc.c
@@ -1,4 +1,5 @@ -/* arch/sh/kernel/rtc-aica.c +/* + * arch/sh/boards/dreamcast/rtc.c * * Dreamcast AICA RTC routines. * @@ -10,15 +11,12 @@ */ #include <linux/time.h> - +#include <asm/rtc.h> #include <asm/io.h> -extern void (*rtc_get_time)(struct timespec *); -extern int (*rtc_set_time)(const time_t); - /* The AICA RTC has an Epoch of 1/1/1950, so we must subtract 20 years (in - seconds to get the standard Unix Epoch when getting the time, and add 20 - years when setting the time. */ + seconds) to get the standard Unix Epoch when getting the time, and add + 20 years when setting the time. */ #define TWENTY_YEARS ((20 * 365LU + 5) * 86400) /* The AICA RTC is represented by a 32-bit seconds counter stored in 2 16-bit @@ -32,7 +30,8 @@ * * Grabs the current RTC seconds counter and adjusts it to the Unix Epoch. */ -void aica_rtc_gettimeofday(struct timespec *ts) { +void aica_rtc_gettimeofday(struct timespec *ts) +{ unsigned long val1, val2; do { @@ -55,7 +54,8 @@ * * Adjusts the given @tv to the AICA Epoch and sets the RTC seconds counter. */ -int aica_rtc_settimeofday(const time_t secs) { +int aica_rtc_settimeofday(const time_t secs) +{ unsigned long val1, val2; unsigned long adj = secs + TWENTY_YEARS; @@ -75,7 +75,7 @@ void aica_time_init(void) { - rtc_get_time = aica_rtc_gettimeofday; - rtc_set_time = aica_rtc_settimeofday; + rtc_sh_get_time = aica_rtc_gettimeofday; + rtc_sh_set_time = aica_rtc_settimeofday; }
diff --git a/arch/sh/boards/dreamcast/setup.c b/arch/sh/boards/dreamcast/setup.c index 0027b80..f13017e 100644 --- a/arch/sh/boards/dreamcast/setup.c +++ b/arch/sh/boards/dreamcast/setup.c
@@ -22,41 +22,21 @@ #include <linux/init.h> #include <linux/irq.h> #include <linux/device.h> - #include <asm/io.h> #include <asm/irq.h> +#include <asm/rtc.h> #include <asm/machvec.h> -#include <asm/machvec_init.h> #include <asm/mach/sysasic.h> extern struct hw_interrupt_type systemasic_int; -/* XXX: Move this into it's proper header. */ -extern void (*board_time_init)(void); extern void aica_time_init(void); extern int gapspci_init(void); extern int systemasic_irq_demux(int); -void *dreamcast_consistent_alloc(struct device *, size_t, dma_addr_t *, int); +void *dreamcast_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t); int dreamcast_consistent_free(struct device *, size_t, void *, dma_addr_t); -const char *get_system_type(void) -{ - return "Sega Dreamcast"; -} - -struct sh_machine_vector mv_dreamcast __initmv = { - .mv_nr_irqs = NR_IRQS, - - .mv_irq_demux = systemasic_irq_demux, - -#ifdef CONFIG_PCI - .mv_consistent_alloc = dreamcast_consistent_alloc, - .mv_consistent_free = dreamcast_consistent_free, -#endif -}; -ALIAS_MV(dreamcast) - -int __init platform_setup(void) +static void __init dreamcast_setup(char **cmdline_p) { int i; @@ -78,6 +58,16 @@ if (gapspci_init() < 0) printk(KERN_WARNING "GAPSPCI was not detected.\n"); #endif - - return 0; } + +struct sh_machine_vector mv_dreamcast __initmv = { + .mv_name = "Sega Dreamcast", + .mv_setup = dreamcast_setup, + .mv_irq_demux = systemasic_irq_demux, + +#ifdef CONFIG_PCI + .mv_consistent_alloc = dreamcast_consistent_alloc, + .mv_consistent_free = dreamcast_consistent_free, +#endif +}; +ALIAS_MV(dreamcast)
diff --git a/arch/sh/boards/ec3104/setup.c b/arch/sh/boards/ec3104/setup.c index 4b3ef16..902bc97 100644 --- a/arch/sh/boards/ec3104/setup.c +++ b/arch/sh/boards/ec3104/setup.c
@@ -21,22 +21,36 @@ #include <linux/init.h> #include <linux/irq.h> #include <linux/types.h> - #include <asm/io.h> #include <asm/irq.h> #include <asm/machvec.h> #include <asm/mach/ec3104.h> -const char *get_system_type(void) +static void __init ec3104_setup(char **cmdline_p) { - return "EC3104"; + char str[8]; + int i; + + for (i=0; i<8; i++) + str[i] = ctrl_readb(EC3104_BASE + i); + + for (i = EC3104_IRQBASE; i < EC3104_IRQBASE + 32; i++) + irq_desc[i].handler = &ec3104_int; + + printk("initializing EC3104 \"%.8s\" at %08x, IRQ %d, IRQ base %d\n", + str, EC3104_BASE, EC3104_IRQ, EC3104_IRQBASE); + + /* mask all interrupts. this should have been done by the boot + * loader for us but we want to be sure ... */ + ctrl_writel(0xffffffff, EC3104_IMR); } /* * The Machine Vector */ - struct sh_machine_vector mv_ec3104 __initmv = { + .mv_name = "EC3104", + .mv_setup = ec3104_setup, .mv_nr_irqs = 96, .mv_inb = ec3104_inb, @@ -48,31 +62,4 @@ .mv_irq_demux = ec3104_irq_demux, }; - ALIAS_MV(ec3104) - -int __init platform_setup(void) -{ - char str[8]; - int i; - - if (0) - return 0; - - for (i=0; i<8; i++) - str[i] = ctrl_readb(EC3104_BASE + i); - - for (i = EC3104_IRQBASE; i < EC3104_IRQBASE + 32; i++) - irq_desc[i].chip = &ec3104_int; - - printk("initializing EC3104 \"%.8s\" at %08x, IRQ %d, IRQ base %d\n", - str, EC3104_BASE, EC3104_IRQ, EC3104_IRQBASE); - - - /* mask all interrupts. this should have been done by the boot - * loader for us but we want to be sure ... */ - ctrl_writel(0xffffffff, EC3104_IMR); - - return 0; -} -
diff --git a/arch/sh/boards/harp/Makefile b/arch/sh/boards/harp/Makefile deleted file mode 100644 index eb753d3..0000000 --- a/arch/sh/boards/harp/Makefile +++ /dev/null
@@ -1,8 +0,0 @@ -# -# Makefile for STMicroelectronics board specific parts of the kernel -# - -obj-y := irq.o setup.o mach.o led.o - -obj-$(CONFIG_PCI) += pcidma.o -
diff --git a/arch/sh/boards/harp/irq.c b/arch/sh/boards/harp/irq.c deleted file mode 100644 index 96bb41c..0000000 --- a/arch/sh/boards/harp/irq.c +++ /dev/null
@@ -1,147 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Looks after interrupts on the HARP board. - * - * Bases on the IPR irq system - */ - -#include <linux/init.h> -#include <linux/irq.h> - -#include <asm/system.h> -#include <asm/io.h> -#include <asm/harp/harp.h> - - -#define NUM_EXTERNAL_IRQS 16 - -// Early versions of the STB1 Overdrive required this nasty frig -//#define INVERT_INTMASK_WRITES - -static void enable_harp_irq(unsigned int irq); -static void disable_harp_irq(unsigned int irq); - -/* shutdown is same as "disable" */ -#define shutdown_harp_irq disable_harp_irq - -static void mask_and_ack_harp(unsigned int); -static void end_harp_irq(unsigned int irq); - -static unsigned int startup_harp_irq(unsigned int irq) -{ - enable_harp_irq(irq); - return 0; /* never anything pending */ -} - -static struct hw_interrupt_type harp_irq_type = { - .typename = "Harp-IRQ", - .startup = startup_harp_irq, - .shutdown = shutdown_harp_irq, - .enable = enable_harp_irq, - .disable = disable_harp_irq, - .ack = mask_and_ack_harp, - .end = end_harp_irq -}; - -static void disable_harp_irq(unsigned int irq) -{ - unsigned val, flags; - unsigned maskReg; - unsigned mask; - int pri; - - if (irq < 0 || irq >= NUM_EXTERNAL_IRQS) - return; - - pri = 15 - irq; - - if (pri < 8) { - maskReg = EPLD_INTMASK0; - } else { - maskReg = EPLD_INTMASK1; - pri -= 8; - } - - local_irq_save(flags); - mask = ctrl_inl(maskReg); - mask &= (~(1 << pri)); -#if defined(INVERT_INTMASK_WRITES) - mask ^= 0xff; -#endif - ctrl_outl(mask, maskReg); - local_irq_restore(flags); -} - -static void enable_harp_irq(unsigned int irq) -{ - unsigned flags; - unsigned maskReg; - unsigned mask; - int pri; - - if (irq < 0 || irq >= NUM_EXTERNAL_IRQS) - return; - - pri = 15 - irq; - - if (pri < 8) { - maskReg = EPLD_INTMASK0; - } else { - maskReg = EPLD_INTMASK1; - pri -= 8; - } - - local_irq_save(flags); - mask = ctrl_inl(maskReg); - - - mask |= (1 << pri); - -#if defined(INVERT_INTMASK_WRITES) - mask ^= 0xff; -#endif - ctrl_outl(mask, maskReg); - - local_irq_restore(flags); -} - -/* This functions sets the desired irq handler to be an overdrive type */ -static void __init make_harp_irq(unsigned int irq) -{ - disable_irq_nosync(irq); - irq_desc[irq].chip = &harp_irq_type; - disable_harp_irq(irq); -} - -static void mask_and_ack_harp(unsigned int irq) -{ - disable_harp_irq(irq); -} - -static void end_harp_irq(unsigned int irq) -{ - enable_harp_irq(irq); -} - -void __init init_harp_irq(void) -{ - int i; - -#if !defined(INVERT_INTMASK_WRITES) - // On the harp these are set to enable an interrupt - ctrl_outl(0x00, EPLD_INTMASK0); - ctrl_outl(0x00, EPLD_INTMASK1); -#else - // On the Overdrive the data is inverted before being stored in the reg - ctrl_outl(0xff, EPLD_INTMASK0); - ctrl_outl(0xff, EPLD_INTMASK1); -#endif - - for (i = 0; i < NUM_EXTERNAL_IRQS; i++) { - make_harp_irq(i); - } -}
diff --git a/arch/sh/boards/harp/led.c b/arch/sh/boards/harp/led.c deleted file mode 100644 index aeb7b39..0000000 --- a/arch/sh/boards/harp/led.c +++ /dev/null
@@ -1,51 +0,0 @@ -/* - * linux/arch/sh/stboards/led.c - * - * Copyright (C) 2000 Stuart Menefy <stuart.menefy@st.com> - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * This file contains ST40STB1 HARP and compatible code. - */ - -#include <asm/io.h> -#include <asm/harp/harp.h> - -/* Harp: Flash LD10 (front pannel) connected to EPLD (IC8) */ -/* Overdrive: Flash LD1 (front panel) connected to EPLD (IC4) */ -/* Works for HARP and overdrive */ -static void mach_led(int position, int value) -{ - if (value) { - ctrl_outl(EPLD_LED_ON, EPLD_LED); - } else { - ctrl_outl(EPLD_LED_OFF, EPLD_LED); - } -} - -#ifdef CONFIG_HEARTBEAT - -#include <linux/sched.h> - -/* acts like an actual heart beat -- ie thump-thump-pause... */ -void heartbeat_harp(void) -{ - static unsigned cnt = 0, period = 0, dist = 0; - - if (cnt == 0 || cnt == dist) - mach_led( -1, 1); - else if (cnt == 7 || cnt == dist+7) - mach_led( -1, 0); - - if (++cnt > period) { - cnt = 0; - /* The hyperbolic function below modifies the heartbeat period - * length in dependency of the current (5min) load. It goes - * through the points f(0)=126, f(1)=86, f(5)=51, - * f(inf)->30. */ - period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; - dist = period / 4; - } -} -#endif
diff --git a/arch/sh/boards/harp/mach.c b/arch/sh/boards/harp/mach.c deleted file mode 100644 index a946dd1..0000000 --- a/arch/sh/boards/harp/mach.c +++ /dev/null
@@ -1,62 +0,0 @@ -/* - * linux/arch/sh/boards/harp/mach.c - * - * Copyright (C) 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Machine vector for the STMicroelectronics STB1 HARP and compatible boards - */ - -#include <linux/init.h> - -#include <asm/machvec.h> -#include <asm/rtc.h> -#include <asm/machvec_init.h> -#include <asm/hd64465/io.h> -#include <asm/hd64465/hd64465.h> - -void setup_harp(void); -void init_harp_irq(void); -void heartbeat_harp(void); - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_harp __initmv = { - .mv_nr_irqs = 89 + HD64465_IRQ_NUM, - - .mv_inb = hd64465_inb, - .mv_inw = hd64465_inw, - .mv_inl = hd64465_inl, - .mv_outb = hd64465_outb, - .mv_outw = hd64465_outw, - .mv_outl = hd64465_outl, - - .mv_inb_p = hd64465_inb_p, - .mv_inw_p = hd64465_inw, - .mv_inl_p = hd64465_inl, - .mv_outb_p = hd64465_outb_p, - .mv_outw_p = hd64465_outw, - .mv_outl_p = hd64465_outl, - - .mv_insb = hd64465_insb, - .mv_insw = hd64465_insw, - .mv_insl = hd64465_insl, - .mv_outsb = hd64465_outsb, - .mv_outsw = hd64465_outsw, - .mv_outsl = hd64465_outsl, - - .mv_isa_port2addr = hd64465_isa_port2addr, - -#ifdef CONFIG_PCI - .mv_init_irq = init_harp_irq, -#endif -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_harp, -#endif -}; - -ALIAS_MV(harp)
diff --git a/arch/sh/boards/harp/pcidma.c b/arch/sh/boards/harp/pcidma.c deleted file mode 100644 index 4753113..0000000 --- a/arch/sh/boards/harp/pcidma.c +++ /dev/null
@@ -1,42 +0,0 @@ -/* - * Copyright (C) 2001 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Dynamic DMA mapping support. - */ - -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/string.h> -#include <linux/pci.h> -#include <asm/io.h> -#include <asm/addrspace.h> - - -void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size, - dma_addr_t * dma_handle) -{ - void *ret; - int gfp = GFP_ATOMIC; - - ret = (void *) __get_free_pages(gfp, get_order(size)); - - if (ret != NULL) { - /* Is it neccessary to do the memset? */ - memset(ret, 0, size); - *dma_handle = virt_to_bus(ret); - } - /* We must flush the cache before we pass it on to the device */ - flush_cache_all(); - return P2SEGADDR(ret); -} - -void pci_free_consistent(struct pci_dev *hwdev, size_t size, - void *vaddr, dma_addr_t dma_handle) -{ - unsigned long p1addr=P1SEGADDR((unsigned long)vaddr); - - free_pages(p1addr, get_order(size)); -}
diff --git a/arch/sh/boards/harp/setup.c b/arch/sh/boards/harp/setup.c deleted file mode 100644 index 886e450..0000000 --- a/arch/sh/boards/harp/setup.c +++ /dev/null
@@ -1,90 +0,0 @@ -/* - * arch/sh/stboard/setup.c - * - * Copyright (C) 2001 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * STMicroelectronics ST40STB1 HARP and compatible support. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <asm/io.h> -#include <asm/harp/harp.h> - -const char *get_system_type(void) -{ - return "STB1 Harp"; -} - -/* - * Initialize the board - */ -int __init platform_setup(void) -{ -#ifdef CONFIG_SH_STB1_HARP - unsigned long ic8_version, ic36_version; - - ic8_version = ctrl_inl(EPLD_REVID2); - ic36_version = ctrl_inl(EPLD_REVID1); - - printk("STMicroelectronics STB1 HARP initialisaton\n"); - printk("EPLD versions: IC8: %d.%02d, IC36: %d.%02d\n", - (ic8_version >> 4) & 0xf, ic8_version & 0xf, - (ic36_version >> 4) & 0xf, ic36_version & 0xf); -#elif defined(CONFIG_SH_STB1_OVERDRIVE) - unsigned long version; - - version = ctrl_inl(EPLD_REVID); - - printk("STMicroelectronics STB1 Overdrive initialisaton\n"); - printk("EPLD version: %d.%02d\n", - (version >> 4) & 0xf, version & 0xf); -#else -#error Undefined machine -#endif - - /* Currently all STB1 chips have problems with the sleep instruction, - * so disable it here. - */ - disable_hlt(); - - return 0; -} - -/* - * pcibios_map_platform_irq - * - * This is board specific and returns the IRQ for a given PCI device. - * It is used by the PCI code (arch/sh/kernel/st40_pci*) - * - */ - -#define HARP_PCI_IRQ 1 -#define HARP_BRIDGE_IRQ 2 -#define OVERDRIVE_SLOT0_IRQ 0 - - -int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - switch (slot) { -#ifdef CONFIG_SH_STB1_HARP - case 2: /*This is the PCI slot on the */ - return HARP_PCI_IRQ; - case 1: /* this is the bridge */ - return HARP_BRIDGE_IRQ; -#elif defined(CONFIG_SH_STB1_OVERDRIVE) - case 1: - case 2: - case 3: - return slot - 1; -#else -#error Unknown board -#endif - default: - return -1; - } -} -
diff --git a/arch/sh/boards/hp6xx/Makefile b/arch/sh/boards/hp6xx/Makefile index 927fe0a..ff1b7f5 100644 --- a/arch/sh/boards/hp6xx/Makefile +++ b/arch/sh/boards/hp6xx/Makefile
@@ -2,5 +2,6 @@ # Makefile for the HP6xx specific parts of the kernel # -obj-y := mach.o setup.o - +obj-y := setup.o +obj-$(CONFIG_PM) += pm.o pm_wakeup.o +obj-$(CONFIG_APM) += hp6xx_apm.o
diff --git a/arch/sh/boards/hp6xx/hp6xx_apm.c b/arch/sh/boards/hp6xx/hp6xx_apm.c new file mode 100644 index 0000000..ad0e712 --- /dev/null +++ b/arch/sh/boards/hp6xx/hp6xx_apm.c
@@ -0,0 +1,123 @@ +/* + * bios-less APM driver for hp680 + * + * Copyright 2005 (c) Andriy Skulysh <askulysh@gmail.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License. + */ +#include <linux/config.h> +#include <linux/module.h> +#include <linux/apm_bios.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <asm/io.h> +#include <asm/apm.h> +#include <asm/adc.h> +#include <asm/hp6xx/hp6xx.h> + +#define SH7709_PGDR 0xa400012c + +#define APM_CRITICAL 10 +#define APM_LOW 30 + +#define HP680_BATTERY_MAX 875 +#define HP680_BATTERY_MIN 600 +#define HP680_BATTERY_AC_ON 900 + +#define MODNAME "hp6x0_apm" + +static int hp6x0_apm_get_info(char *buf, char **start, off_t fpos, int length) +{ + u8 pgdr; + char *p; + int battery_status; + int battery_flag; + int ac_line_status; + int time_units = APM_BATTERY_LIFE_UNKNOWN; + + int battery = adc_single(ADC_CHANNEL_BATTERY); + int backup = adc_single(ADC_CHANNEL_BACKUP); + int charging = adc_single(ADC_CHANNEL_CHARGE); + int percentage; + + percentage = 100 * (battery - HP680_BATTERY_MIN) / + (HP680_BATTERY_MAX - HP680_BATTERY_MIN); + + ac_line_status = (battery > HP680_BATTERY_AC_ON) ? + APM_AC_ONLINE : APM_AC_OFFLINE; + + p = buf; + + pgdr = ctrl_inb(SH7709_PGDR); + if (pgdr & PGDR_MAIN_BATTERY_OUT) { + battery_status = APM_BATTERY_STATUS_NOT_PRESENT; + battery_flag = 0x80; + percentage = -1; + } else if (charging < 8 ) { + battery_status = APM_BATTERY_STATUS_CHARGING; + battery_flag = 0x08; + ac_line_status = 0xff; + } else if (percentage <= APM_CRITICAL) { + battery_status = APM_BATTERY_STATUS_CRITICAL; + battery_flag = 0x04; + } else if (percentage <= APM_LOW) { + battery_status = APM_BATTERY_STATUS_LOW; + battery_flag = 0x02; + } else { + battery_status = APM_BATTERY_STATUS_HIGH; + battery_flag = 0x01; + } + + p += sprintf(p, "1.0 1.2 0x%02x 0x%02x 0x%02x 0x%02x %d%% %d %s\n", + APM_32_BIT_SUPPORT, + ac_line_status, + battery_status, + battery_flag, + percentage, + time_units, + "min"); + p += sprintf(p, "bat=%d backup=%d charge=%d\n", + battery, backup, charging); + + return p - buf; +} + +static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev, struct pt_regs *regs) +{ + if (!apm_suspended) + apm_queue_event(APM_USER_SUSPEND); + + return IRQ_HANDLED; +} + +static int __init hp6x0_apm_init(void) +{ + int ret; + + ret = request_irq(HP680_BTN_IRQ, hp6x0_apm_interrupt, + SA_INTERRUPT, MODNAME, 0); + if (unlikely(ret < 0)) { + printk(KERN_ERR MODNAME ": IRQ %d request failed\n", + HP680_BTN_IRQ); + return ret; + } + + apm_get_info = hp6x0_apm_get_info; + + return ret; +} + +static void __exit hp6x0_apm_exit(void) +{ + free_irq(HP680_BTN_IRQ, 0); + apm_get_info = 0; +} + +module_init(hp6x0_apm_init); +module_exit(hp6x0_apm_exit); + +MODULE_AUTHOR("Adriy Skulysh"); +MODULE_DESCRIPTION("hp6xx Advanced Power Management"); +MODULE_LICENSE("GPL");
diff --git a/arch/sh/boards/hp6xx/pm.c b/arch/sh/boards/hp6xx/pm.c new file mode 100644 index 0000000..0e501bc --- /dev/null +++ b/arch/sh/boards/hp6xx/pm.c
@@ -0,0 +1,88 @@ +/* + * hp6x0 Power Management Routines + * + * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License. + */ +#include <linux/config.h> +#include <linux/init.h> +#include <linux/suspend.h> +#include <linux/errno.h> +#include <linux/time.h> +#include <asm/io.h> +#include <asm/hd64461.h> +#include <asm/hp6xx/hp6xx.h> +#include <asm/cpu/dac.h> +#include <asm/pm.h> + +#define STBCR 0xffffff82 +#define STBCR2 0xffffff88 + +static int hp6x0_pm_enter(suspend_state_t state) +{ + u8 stbcr, stbcr2; +#ifdef CONFIG_HD64461_ENABLER + u8 scr; + u16 hd64461_stbcr; +#endif + + if (state != PM_SUSPEND_MEM) + return -EINVAL; + +#ifdef CONFIG_HD64461_ENABLER + outb(0, HD64461_PCC1CSCIER); + + scr = inb(HD64461_PCC1SCR); + scr |= HD64461_PCCSCR_VCC1; + outb(scr, HD64461_PCC1SCR); + + hd64461_stbcr = inw(HD64461_STBCR); + hd64461_stbcr |= HD64461_STBCR_SPC1ST; + outw(hd64461_stbcr, HD64461_STBCR); +#endif + + ctrl_outb(0x1f, DACR); + + stbcr = ctrl_inb(STBCR); + ctrl_outb(0x01, STBCR); + + stbcr2 = ctrl_inb(STBCR2); + ctrl_outb(0x7f , STBCR2); + + outw(0xf07f, HD64461_SCPUCR); + + pm_enter(); + + outw(0, HD64461_SCPUCR); + ctrl_outb(stbcr, STBCR); + ctrl_outb(stbcr2, STBCR2); + +#ifdef CONFIG_HD64461_ENABLER + hd64461_stbcr = inw(HD64461_STBCR); + hd64461_stbcr &= ~HD64461_STBCR_SPC1ST; + outw(hd64461_stbcr, HD64461_STBCR); + + outb(0x4c, HD64461_PCC1CSCIER); + outb(0x00, HD64461_PCC1CSCR); +#endif + + return 0; +} + +/* + * Set to PM_DISK_FIRMWARE so we can quickly veto suspend-to-disk. + */ +static struct pm_ops hp6x0_pm_ops = { + .pm_disk_mode = PM_DISK_FIRMWARE, + .enter = hp6x0_pm_enter, +}; + +static int __init hp6x0_pm_init(void) +{ + pm_set_ops(&hp6x0_pm_ops); + return 0; +} + +late_initcall(hp6x0_pm_init);
diff --git a/arch/sh/boards/hp6xx/pm_wakeup.S b/arch/sh/boards/hp6xx/pm_wakeup.S new file mode 100644 index 0000000..45e9bf0 --- /dev/null +++ b/arch/sh/boards/hp6xx/pm_wakeup.S
@@ -0,0 +1,58 @@ +/* + * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + */ + +#include <linux/linkage.h> +#include <asm/cpu/mmu_context.h> + +#define k0 r0 +#define k1 r1 +#define k2 r2 +#define k3 r3 +#define k4 r4 + +/* + * Kernel mode register usage: + * k0 scratch + * k1 scratch + * k2 scratch (Exception code) + * k3 scratch (Return address) + * k4 scratch + * k5 reserved + * k6 Global Interrupt Mask (0--15 << 4) + * k7 CURRENT_THREAD_INFO (pointer to current thread info) + */ + +ENTRY(wakeup_start) +! clear STBY bit + mov #-126, k2 + and #127, k0 + mov.b k0, @k2 +! enable refresh + mov.l 5f, k1 + mov.w 6f, k0 + mov.w k0, @k1 +! jump to handler + mov.l 2f, k2 + mov.l 3f, k3 + mov.l @k2, k2 + + mov.l 4f, k1 + jmp @k1 + nop + + .align 2 +1: .long EXPEVT +2: .long INTEVT +3: .long ret_from_irq +4: .long handle_exception +5: .long 0xffffff68 +6: .word 0x0524 + +ENTRY(wakeup_end) + nop
diff --git a/arch/sh/boards/hp6xx/setup.c b/arch/sh/boards/hp6xx/setup.c index 71f3156..60ab17a 100644 --- a/arch/sh/boards/hp6xx/setup.c +++ b/arch/sh/boards/hp6xx/setup.c
@@ -8,22 +8,22 @@ * * Setup code for an HP680 (internal peripherials only) */ - +#include <linux/types.h> #include <linux/init.h> -#include <asm/io.h> #include <asm/hd64461.h> +#include <asm/io.h> +#include <asm/irq.h> #include <asm/hp6xx/hp6xx.h> #include <asm/cpu/dac.h> -const char *get_system_type(void) -{ - return "HP6xx"; -} +#define SCPCR 0xa4000116 +#define SCPDR 0xa4000136 -int __init platform_setup(void) +static void __init hp6xx_setup(char **cmdline_p) { u8 v8; u16 v; + v = inw(HD64461_STBCR); v |= HD64461_STBCR_SURTST | HD64461_STBCR_SIRST | HD64461_STBCR_STM1ST | HD64461_STBCR_STM0ST | @@ -50,5 +50,51 @@ v8 &= ~DACR_DAE; ctrl_outb(v8,DACR); - return 0; + v8 = ctrl_inb(SCPDR); + v8 |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y; + v8 &= ~SCPDR_TS_SCAN_ENABLE; + ctrl_outb(v8, SCPDR); + + v = ctrl_inw(SCPCR); + v &= ~SCPCR_TS_MASK; + v |= SCPCR_TS_ENABLE; + ctrl_outw(v, SCPCR); } + +/* + * XXX: This is stupid, we should have a generic machine vector for the cchips + * and just wrap the platform setup code in to this, as it's the only thing + * that ends up being different. + */ +struct sh_machine_vector mv_hp6xx __initmv = { + .mv_name = "hp6xx", + .mv_setup = hp6xx_setup, + .mv_nr_irqs = HD64461_IRQBASE + HD64461_IRQ_NUM, + + .mv_inb = hd64461_inb, + .mv_inw = hd64461_inw, + .mv_inl = hd64461_inl, + .mv_outb = hd64461_outb, + .mv_outw = hd64461_outw, + .mv_outl = hd64461_outl, + + .mv_inb_p = hd64461_inb_p, + .mv_inw_p = hd64461_inw, + .mv_inl_p = hd64461_inl, + .mv_outb_p = hd64461_outb_p, + .mv_outw_p = hd64461_outw, + .mv_outl_p = hd64461_outl, + + .mv_insb = hd64461_insb, + .mv_insw = hd64461_insw, + .mv_insl = hd64461_insl, + .mv_outsb = hd64461_outsb, + .mv_outsw = hd64461_outsw, + .mv_outsl = hd64461_outsl, + + .mv_readw = hd64461_readw, + .mv_writew = hd64461_writew, + + .mv_irq_demux = hd64461_irq_demux, +}; +ALIAS_MV(hp6xx)
diff --git a/arch/sh/boards/landisk/Makefile b/arch/sh/boards/landisk/Makefile new file mode 100644 index 0000000..89e4beb --- /dev/null +++ b/arch/sh/boards/landisk/Makefile
@@ -0,0 +1,5 @@ +# +# Makefile for I-O DATA DEVICE, INC. "LANDISK Series" +# + +obj-y := setup.o io.o irq.o rtc.o landisk_pwb.o
diff --git a/arch/sh/boards/landisk/io.c b/arch/sh/boards/landisk/io.c new file mode 100644 index 0000000..92498b4 --- /dev/null +++ b/arch/sh/boards/landisk/io.c
@@ -0,0 +1,250 @@ +/* + * arch/sh/boards/landisk/io.c + * + * Copyright (C) 2001 Ian da Silva, Jeremy Siegel + * Based largely on io_se.c. + * + * I/O routine for I-O Data Device, Inc. LANDISK. + * + * Initial version only to support LAN access; some + * placeholder code from io_landisk.c left in with the + * expectation of later SuperIO and PCMCIA access. + */ +/* + * modifed by kogiidena + * 2005.03.03 + */ +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/pci.h> +#include <asm/landisk/iodata_landisk.h> +#include <asm/addrspace.h> +#include <asm/io.h> + +extern void *area5_io_base; /* Area 5 I/O Base address */ +extern void *area6_io_base; /* Area 6 I/O Base address */ + +static inline unsigned long port2adr(unsigned int port) +{ + if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) + if (port == 0x3f6) + return ((unsigned long)area5_io_base + 0x2c); + else + return ((unsigned long)area5_io_base + PA_PIDE_OFFSET + + ((port - 0x1f0) << 1)); + else if ((0x170 <= port && port < 0x178) || port == 0x376) + if (port == 0x376) + return ((unsigned long)area6_io_base + 0x2c); + else + return ((unsigned long)area6_io_base + PA_SIDE_OFFSET + + ((port - 0x170) << 1)); + else + maybebadio((unsigned long)port); + + return port; +} + +/* + * General outline: remap really low stuff [eventually] to SuperIO, + * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) + * is mapped through the PCI IO window. Stuff with high bits (PXSEG) + * should be way beyond the window, and is used w/o translation for + * compatibility. + */ +u8 landisk_inb(unsigned long port) +{ + if (PXSEG(port)) + return ctrl_inb(port); + else if (is_pci_ioaddr(port)) + return ctrl_inb(pci_ioaddr(port)); + + return ctrl_inw(port2adr(port)) & 0xff; +} + +u8 landisk_inb_p(unsigned long port) +{ + u8 v; + + if (PXSEG(port)) + v = ctrl_inb(port); + else if (is_pci_ioaddr(port)) + v = ctrl_inb(pci_ioaddr(port)); + else + v = ctrl_inw(port2adr(port)) & 0xff; + + ctrl_delay(); + + return v; +} + +u16 landisk_inw(unsigned long port) +{ + if (PXSEG(port)) + return ctrl_inw(port); + else if (is_pci_ioaddr(port)) + return ctrl_inw(pci_ioaddr(port)); + else + maybebadio(port); + + return 0; +} + +u32 landisk_inl(unsigned long port) +{ + if (PXSEG(port)) + return ctrl_inl(port); + else if (is_pci_ioaddr(port)) + return ctrl_inl(pci_ioaddr(port)); + else + maybebadio(port); + + return 0; +} + +void landisk_outb(u8 value, unsigned long port) +{ + if (PXSEG(port)) + ctrl_outb(value, port); + else if (is_pci_ioaddr(port)) + ctrl_outb(value, pci_ioaddr(port)); + else + ctrl_outw(value, port2adr(port)); +} + +void landisk_outb_p(u8 value, unsigned long port) +{ + if (PXSEG(port)) + ctrl_outb(value, port); + else if (is_pci_ioaddr(port)) + ctrl_outb(value, pci_ioaddr(port)); + else + ctrl_outw(value, port2adr(port)); + ctrl_delay(); +} + +void landisk_outw(u16 value, unsigned long port) +{ + if (PXSEG(port)) + ctrl_outw(value, port); + else if (is_pci_ioaddr(port)) + ctrl_outw(value, pci_ioaddr(port)); + else + maybebadio(port); +} + +void landisk_outl(u32 value, unsigned long port) +{ + if (PXSEG(port)) + ctrl_outl(value, port); + else if (is_pci_ioaddr(port)) + ctrl_outl(value, pci_ioaddr(port)); + else + maybebadio(port); +} + +void landisk_insb(unsigned long port, void *dst, unsigned long count) +{ + volatile u16 *p; + u8 *buf = dst; + + if (PXSEG(port)) { + while (count--) + *buf++ = *(volatile u8 *)port; + } else if (is_pci_ioaddr(port)) { + volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); + + while (count--) + *buf++ = *bp; + } else { + p = (volatile u16 *)port2adr(port); + while (count--) + *buf++ = *p & 0xff; + } +} + +void landisk_insw(unsigned long port, void *dst, unsigned long count) +{ + volatile u16 *p; + u16 *buf = dst; + + if (PXSEG(port)) + p = (volatile u16 *)port; + else if (is_pci_ioaddr(port)) + p = (volatile u16 *)pci_ioaddr(port); + else + p = (volatile u16 *)port2adr(port); + while (count--) + *buf++ = *p; +} + +void landisk_insl(unsigned long port, void *dst, unsigned long count) +{ + u32 *buf = dst; + + if (is_pci_ioaddr(port)) { + volatile u32 *p = (volatile u32 *)pci_ioaddr(port); + + while (count--) + *buf++ = *p; + } else + maybebadio(port); +} + +void landisk_outsb(unsigned long port, const void *src, unsigned long count) +{ + volatile u16 *p; + const u8 *buf = src; + + if (PXSEG(port)) + while (count--) + ctrl_outb(*buf++, port); + else if (is_pci_ioaddr(port)) { + volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); + + while (count--) + *bp = *buf++; + } else { + p = (volatile u16 *)port2adr(port); + while (count--) + *p = *buf++; + } +} + +void landisk_outsw(unsigned long port, const void *src, unsigned long count) +{ + volatile u16 *p; + const u16 *buf = src; + + if (PXSEG(port)) + p = (volatile u16 *)port; + else if (is_pci_ioaddr(port)) + p = (volatile u16 *)pci_ioaddr(port); + else + p = (volatile u16 *)port2adr(port); + + while (count--) + *p = *buf++; +} + +void landisk_outsl(unsigned long port, const void *src, unsigned long count) +{ + const u32 *buf = src; + + if (is_pci_ioaddr(port)) { + volatile u32 *p = (volatile u32 *)pci_ioaddr(port); + + while (count--) + *p = *buf++; + } else + maybebadio(port); +} + +void __iomem *landisk_ioport_map(unsigned long port, unsigned int size) +{ + if (PXSEG(port)) + return (void __iomem *)port; + else if (is_pci_ioaddr(port)) + return (void __iomem *)pci_ioaddr(port); + + return (void __iomem *)port2adr(port); +}
diff --git a/arch/sh/boards/landisk/irq.c b/arch/sh/boards/landisk/irq.c new file mode 100644 index 0000000..a006d64 --- /dev/null +++ b/arch/sh/boards/landisk/irq.c
@@ -0,0 +1,99 @@ +/* + * arch/sh/boards/landisk/irq.c + * + * Copyright (C) 2001 Ian da Silva, Jeremy Siegel + * Based largely on io_se.c. + * + * I/O routine for I-O Data Device, Inc. LANDISK. + * + * Initial version only to support LAN access; some + * placeholder code from io_landisk.c left in with the + * expectation of later SuperIO and PCMCIA access. + */ +/* + * modified by kogiidena + * 2005.03.03 + */ + +#include <linux/config.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/landisk/iodata_landisk.h> + +static void enable_landisk_irq(unsigned int irq); +static void disable_landisk_irq(unsigned int irq); + +/* shutdown is same as "disable" */ +#define shutdown_landisk_irq disable_landisk_irq + +static void ack_landisk_irq(unsigned int irq); +static void end_landisk_irq(unsigned int irq); + +static unsigned int startup_landisk_irq(unsigned int irq) +{ + enable_landisk_irq(irq); + return 0; /* never anything pending */ +} + +static void disable_landisk_irq(unsigned int irq) +{ + unsigned char val; + unsigned char mask = 0xff ^ (0x01 << (irq - 5)); + + /* Set the priority in IPR to 0 */ + val = ctrl_inb(PA_IMASK); + val &= mask; + ctrl_outb(val, PA_IMASK); +} + +static void enable_landisk_irq(unsigned int irq) +{ + unsigned char val; + unsigned char value = (0x01 << (irq - 5)); + + /* Set priority in IPR back to original value */ + val = ctrl_inb(PA_IMASK); + val |= value; + ctrl_outb(val, PA_IMASK); +} + +static void ack_landisk_irq(unsigned int irq) +{ + disable_landisk_irq(irq); +} + +static void end_landisk_irq(unsigned int irq) +{ + if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) + enable_landisk_irq(irq); +} + +static struct hw_interrupt_type landisk_irq_type = { + .typename = "LANDISK IRQ", + .startup = startup_landisk_irq, + .shutdown = shutdown_landisk_irq, + .enable = enable_landisk_irq, + .disable = disable_landisk_irq, + .ack = ack_landisk_irq, + .end = end_landisk_irq +}; + +static void make_landisk_irq(unsigned int irq) +{ + disable_irq_nosync(irq); + irq_desc[irq].handler = &landisk_irq_type; + disable_landisk_irq(irq); +} + +/* + * Initialize IRQ setting + */ +void __init init_landisk_IRQ(void) +{ + int i; + + for (i = 5; i < 14; i++) + make_landisk_irq(i); +}
diff --git a/arch/sh/boards/landisk/landisk_pwb.c b/arch/sh/boards/landisk/landisk_pwb.c new file mode 100644 index 0000000..e75cb57 --- /dev/null +++ b/arch/sh/boards/landisk/landisk_pwb.c
@@ -0,0 +1,348 @@ +/* + * arch/sh/boards/landisk/landisk_pwb.c -- driver for the Power control switch. + * + * This driver will also support the I-O DATA Device, Inc. LANDISK Board. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copylight (C) 2002 Atom Create Engineering Co., Ltd. + * + * LED control drive function added by kogiidena + */ + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/errno.h> +#include <linux/signal.h> +#include <linux/major.h> +#include <linux/poll.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/sched.h> +#include <linux/timer.h> +#include <linux/interrupt.h> + +#include <asm/system.h> +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/uaccess.h> +#include <asm/landisk/iodata_landisk.h> + +#define SHUTDOWN_BTN_MINOR 1 /* Shutdown button device minor no. */ +#define LED_MINOR 21 /* LED minor no. */ +#define BTN_MINOR 22 /* BUTTON minor no. */ +#define GIO_MINOR 40 /* GIO minor no. */ + +static int openCnt; +static int openCntLED; +static int openCntGio; +static int openCntBtn; +static int landisk_btn; +static int landisk_btnctrlpid; +/* + * Functions prototypes + */ + +static int gio_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, + unsigned long arg); + +static int swdrv_open(struct inode *inode, struct file *filp) +{ + int minor; + + minor = MINOR(inode->i_rdev); + filp->private_data = (void *)minor; + + if (minor == SHUTDOWN_BTN_MINOR) { + if (openCnt > 0) { + return -EALREADY; + } else { + openCnt++; + return 0; + } + } else if (minor == LED_MINOR) { + if (openCntLED > 0) { + return -EALREADY; + } else { + openCntLED++; + return 0; + } + } else if (minor == BTN_MINOR) { + if (openCntBtn > 0) { + return -EALREADY; + } else { + openCntBtn++; + return 0; + } + } else if (minor == GIO_MINOR) { + if (openCntGio > 0) { + return -EALREADY; + } else { + openCntGio++; + return 0; + } + } + return -ENOENT; + +} + +static int swdrv_close(struct inode *inode, struct file *filp) +{ + int minor; + + minor = MINOR(inode->i_rdev); + if (minor == SHUTDOWN_BTN_MINOR) { + openCnt--; + } else if (minor == LED_MINOR) { + openCntLED--; + } else if (minor == BTN_MINOR) { + openCntBtn--; + } else if (minor == GIO_MINOR) { + openCntGio--; + } + return 0; +} + +static int swdrv_read(struct file *filp, char *buff, size_t count, + loff_t * ppos) +{ + int minor; + minor = (int)(filp->private_data); + + if (!access_ok(VERIFY_WRITE, (void *)buff, count)) + return -EFAULT; + + if (minor == SHUTDOWN_BTN_MINOR) { + if (landisk_btn & 0x10) { + put_user(1, buff); + return 1; + } else { + return 0; + } + } + return 0; +} + +static int swdrv_write(struct file *filp, const char *buff, size_t count, + loff_t * ppos) +{ + int minor; + minor = (int)(filp->private_data); + + if (minor == SHUTDOWN_BTN_MINOR) { + return count; + } + return count; +} + +static irqreturn_t sw_interrupt(int irq, void *dev_id, struct pt_regs *regs) +{ + landisk_btn = (0x0ff & (~ctrl_inb(PA_STATUS))); + disable_irq(IRQ_BUTTON); + disable_irq(IRQ_POWER); + ctrl_outb(0x00, PA_PWRINT_CLR); + + if (landisk_btnctrlpid != 0) { + kill_proc(landisk_btnctrlpid, SIGUSR1, 1); + landisk_btnctrlpid = 0; + } + + return IRQ_HANDLED; +} + +static struct file_operations swdrv_fops = { + .read = swdrv_read, /* read */ + .write = swdrv_write, /* write */ + .open = swdrv_open, /* open */ + .release = swdrv_close, /* release */ + .ioctl = gio_ioctl, /* ioctl */ + +}; + +static char banner[] __initdata = + KERN_INFO "LANDISK and USL-5P Button, LED and GIO driver initialized\n"; + +int __init swdrv_init(void) +{ + int error; + + printk("%s", banner); + + openCnt = 0; + openCntLED = 0; + openCntBtn = 0; + openCntGio = 0; + landisk_btn = 0; + landisk_btnctrlpid = 0; + + if ((error = register_chrdev(SHUTDOWN_BTN_MAJOR, "swdrv", &swdrv_fops))) { + printk(KERN_ERR + "Button, LED and GIO driver:Couldn't register driver, error=%d\n", + error); + return 1; + } + + if (request_irq(IRQ_POWER, sw_interrupt, 0, "SHUTDOWNSWITCH", NULL)) { + printk(KERN_ERR "Unable to get IRQ 11.\n"); + return 1; + } + if (request_irq(IRQ_BUTTON, sw_interrupt, 0, "USL-5P BUTTON", NULL)) { + printk(KERN_ERR "Unable to get IRQ 12.\n"); + return 1; + } + ctrl_outb(0x00, PA_PWRINT_CLR); + + return 0; +} + +module_init(swdrv_init); + +/* + * gio driver + * + */ + +#include <asm/landisk/gio.h> + +static int gio_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg) +{ + int minor; + unsigned int data, mask; + static unsigned int addr = 0; + + minor = (int)(filp->private_data); + + /* access control */ + if (minor == GIO_MINOR) { + ; + } else if (minor == LED_MINOR) { + if (((cmd & 0x0ff) >= 9) && ((cmd & 0x0ff) < 20)) { + ; + } else { + return -EINVAL; + } + } else if (minor == BTN_MINOR) { + if (((cmd & 0x0ff) >= 20) && ((cmd & 0x0ff) < 30)) { + ; + } else { + return -EINVAL; + } + } else { + return -EINVAL; + } + + if (cmd & 0x01) { /* write */ + if (copy_from_user(&data, (int *)arg, sizeof(int))) { + return -EFAULT; + } + } + + switch (cmd) { + case GIODRV_IOCSGIOSETADDR: /* addres set */ + addr = data; + break; + + case GIODRV_IOCSGIODATA1: /* write byte */ + ctrl_outb((unsigned char)(0x0ff & data), addr); + break; + + case GIODRV_IOCSGIODATA2: /* write word */ + if (addr & 0x01) { + return -EFAULT; + } + ctrl_outw((unsigned short int)(0x0ffff & data), addr); + break; + + case GIODRV_IOCSGIODATA4: /* write long */ + if (addr & 0x03) { + return -EFAULT; + } + ctrl_outl(data, addr); + break; + + case GIODRV_IOCGGIODATA1: /* read byte */ + data = ctrl_inb(addr); + break; + + case GIODRV_IOCGGIODATA2: /* read word */ + if (addr & 0x01) { + return -EFAULT; + } + data = ctrl_inw(addr); + break; + + case GIODRV_IOCGGIODATA4: /* read long */ + if (addr & 0x03) { + return -EFAULT; + } + data = ctrl_inl(addr); + break; + case GIODRV_IOCSGIO_LED: /* write */ + mask = ((data & 0x00ffffff) << 8) + | ((data & 0x0000ffff) << 16) + | ((data & 0x000000ff) << 24); + landisk_ledparam = data & (~mask); + if (landisk_arch == 0) { /* arch == landisk */ + landisk_ledparam &= 0x03030303; + mask = (~(landisk_ledparam >> 22)) & 0x000c; + landisk_ledparam |= mask; + } else { /* arch == usl-5p */ + mask = (landisk_ledparam >> 24) & 0x0001; + landisk_ledparam |= mask; + landisk_ledparam &= 0x007f7f7f; + } + landisk_ledparam |= 0x80; + break; + case GIODRV_IOCGGIO_LED: /* read */ + data = landisk_ledparam; + if (landisk_arch == 0) { /* arch == landisk */ + data &= 0x03030303; + } else { /* arch == usl-5p */ + ; + } + data &= (~0x080); + break; + case GIODRV_IOCSGIO_BUZZER: /* write */ + landisk_buzzerparam = data; + landisk_ledparam |= 0x80; + break; + case GIODRV_IOCGGIO_LANDISK: /* read */ + data = landisk_arch & 0x01; + break; + case GIODRV_IOCGGIO_BTN: /* read */ + data = (0x0ff & ctrl_inb(PA_PWRINT_CLR)); + data <<= 8; + data |= (0x0ff & ctrl_inb(PA_IMASK)); + data <<= 8; + data |= (0x0ff & landisk_btn); + data <<= 8; + data |= (0x0ff & (~ctrl_inb(PA_STATUS))); + break; + case GIODRV_IOCSGIO_BTNPID: /* write */ + landisk_btnctrlpid = data; + landisk_btn = 0; + if (irq_desc[IRQ_BUTTON].depth) { + enable_irq(IRQ_BUTTON); + } + if (irq_desc[IRQ_POWER].depth) { + enable_irq(IRQ_POWER); + } + break; + case GIODRV_IOCGGIO_BTNPID: /* read */ + data = landisk_btnctrlpid; + break; + default: + return -EFAULT; + break; + } + + if ((cmd & 0x01) == 0) { /* read */ + if (copy_to_user((int *)arg, &data, sizeof(int))) { + return -EFAULT; + } + } + return 0; +}
diff --git a/arch/sh/boards/landisk/rtc.c b/arch/sh/boards/landisk/rtc.c new file mode 100644 index 0000000..35ba726 --- /dev/null +++ b/arch/sh/boards/landisk/rtc.c
@@ -0,0 +1,93 @@ +/* + * arch/sh/boards/landisk/rtc.c -- RTC support + * + * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org> + * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka + */ +/* + * modifed by kogiidena + * 2005.09.16 + */ + +#include <linux/config.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/time.h> +#include <linux/delay.h> +#include <linux/spinlock.h> +#include <linux/bcd.h> +#include <asm/rtc.h> + +extern spinlock_t rtc_lock; + +extern void +rs5c313_set_cmos_time(unsigned int BCD_yr, unsigned int BCD_mon, + unsigned int BCD_day, unsigned int BCD_hr, + unsigned int BCD_min, unsigned int BCD_sec); + +extern unsigned long +rs5c313_get_cmos_time(unsigned int *BCD_yr, unsigned int *BCD_mon, + unsigned int *BCD_day, unsigned int *BCD_hr, + unsigned int *BCD_min, unsigned int *BCD_sec); + +void landisk_rtc_gettimeofday(struct timespec *tv) +{ + unsigned int BCD_yr, BCD_mon, BCD_day, BCD_hr, BCD_min, BCD_sec; + unsigned long flags; + + spin_lock_irqsave(&rtc_lock, flags); + tv->tv_sec = rs5c313_get_cmos_time + (&BCD_yr, &BCD_mon, &BCD_day, &BCD_hr, &BCD_min, &BCD_sec); + tv->tv_nsec = 0; + spin_unlock_irqrestore(&rtc_lock, flags); +} + +int landisk_rtc_settimeofday(const time_t secs) +{ + int retval = 0; + int real_seconds, real_minutes, cmos_minutes; + unsigned long flags; + unsigned long nowtime = secs; + unsigned int BCD_yr, BCD_mon, BCD_day, BCD_hr, BCD_min, BCD_sec; + + spin_lock_irqsave(&rtc_lock, flags); + + rs5c313_get_cmos_time + (&BCD_yr, &BCD_mon, &BCD_day, &BCD_hr, &BCD_min, &BCD_sec); + cmos_minutes = BCD_min; + BCD_TO_BIN(cmos_minutes); + + /* + * since we're only adjusting minutes and seconds, + * don't interfere with hour overflow. This avoids + * messing with unknown time zones but requires your + * RTC not to be off by more than 15 minutes + */ + real_seconds = nowtime % 60; + real_minutes = nowtime / 60; + if (((abs(real_minutes - cmos_minutes) + 15) / 30) & 1) + real_minutes += 30; /* correct for half hour time zone */ + real_minutes %= 60; + + if (abs(real_minutes - cmos_minutes) < 30) { + BIN_TO_BCD(real_seconds); + BIN_TO_BCD(real_minutes); + rs5c313_set_cmos_time(BCD_yr, BCD_mon, BCD_day, BCD_hr, + real_minutes, real_seconds); + } else { + printk(KERN_WARNING + "set_rtc_time: can't update from %d to %d\n", + cmos_minutes, real_minutes); + retval = -1; + } + + spin_unlock_irqrestore(&rtc_lock, flags); + return retval; +} + +void landisk_time_init(void) +{ + rtc_sh_get_time = landisk_rtc_gettimeofday; + rtc_sh_set_time = landisk_rtc_settimeofday; +}
diff --git a/arch/sh/boards/landisk/setup.c b/arch/sh/boards/landisk/setup.c new file mode 100644 index 0000000..127b9e0 --- /dev/null +++ b/arch/sh/boards/landisk/setup.c
@@ -0,0 +1,177 @@ +/* + * arch/sh/boards/landisk/setup.c + * + * Copyright (C) 2000 Kazumoto Kojima + * Copyright (C) 2002 Paul Mundt + * + * I-O DATA Device, Inc. LANDISK Support. + * + * Modified for LANDISK by + * Atom Create Engineering Co., Ltd. 2002. + * + * modifed by kogiidena + * 2005.09.16 + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/config.h> +#include <linux/init.h> +#include <linux/pm.h> +#include <linux/mm.h> +#include <asm/machvec.h> +#include <asm/rtc.h> +#include <asm/landisk/iodata_landisk.h> +#include <asm/io.h> + +void landisk_time_init(void); +void init_landisk_IRQ(void); + +int landisk_ledparam; +int landisk_buzzerparam; +int landisk_arch; + +/* cycle the led's in the clasic knightrider/sun pattern */ +static void heartbeat_landisk(void) +{ + static unsigned int cnt = 0, blink = 0x00, period = 25; + volatile u8 *p = (volatile u8 *)PA_LED; + char data; + + if ((landisk_ledparam & 0x080) == 0) + return; + + cnt += 1; + + if (cnt < period) + return; + + cnt = 0; + blink++; + + data = (blink & 0x01) ? (landisk_ledparam >> 16) : 0; + data |= (blink & 0x02) ? (landisk_ledparam >> 8) : 0; + data |= landisk_ledparam; + + /* buzzer */ + if (landisk_buzzerparam & 0x1) { + data |= 0x80; + } else { + data &= 0x7f; + } + *p = data; + + if (((landisk_ledparam & 0x007f7f00) == 0) && + (landisk_buzzerparam == 0)) + landisk_ledparam &= (~0x0080); + + landisk_buzzerparam >>= 1; +} + +static void landisk_power_off(void) +{ + ctrl_outb(0x01, PA_SHUTDOWN); +} + +static void check_usl5p(void) +{ + volatile u8 *p = (volatile u8 *)PA_LED; + u8 tmp1, tmp2; + + tmp1 = *p; + *p = 0x40; + tmp2 = *p; + *p = tmp1; + + landisk_arch = (tmp2 == 0x40); + if (landisk_arch == 1) { + /* arch == usl-5p */ + landisk_ledparam = 0x00000380; + landisk_ledparam |= (tmp1 & 0x07c); + } else { + /* arch == landisk */ + landisk_ledparam = 0x02000180; + landisk_ledparam |= 0x04; + } +} + +void *area5_io_base; +void *area6_io_base; + +static int __init landisk_cf_init(void) +{ + pgprot_t prot; + unsigned long paddrbase, psize; + + /* open I/O area window */ + paddrbase = virt_to_phys((void *)PA_AREA5_IO); + psize = PAGE_SIZE; + prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_IO16); + area5_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); + if (!area5_io_base) { + printk("allocate_cf_area : can't open CF I/O window!\n"); + return -ENOMEM; + } + + paddrbase = virt_to_phys((void *)PA_AREA6_IO); + psize = PAGE_SIZE; + prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO16); + area6_io_base = p3_ioremap(paddrbase, psize, prot.pgprot); + if (!area6_io_base) { + printk("allocate_cf_area : can't open HDD I/O window!\n"); + return -ENOMEM; + } + + printk(KERN_INFO "Allocate Area5/6 success.\n"); + + /* XXX : do we need attribute and common-memory area also? */ + + return 0; +} + +static void __init landisk_setup(char **cmdline_p) +{ + device_initcall(landisk_cf_init); + + landisk_buzzerparam = 0; + check_usl5p(); + + printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n"); + + board_time_init = landisk_time_init; + pm_power_off = landisk_power_off; +} + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_landisk __initmv = { + .mv_name = "LANDISK", + .mv_setup = landisk_setup, + .mv_nr_irqs = 72, + .mv_inb = landisk_inb, + .mv_inw = landisk_inw, + .mv_inl = landisk_inl, + .mv_outb = landisk_outb, + .mv_outw = landisk_outw, + .mv_outl = landisk_outl, + .mv_inb_p = landisk_inb_p, + .mv_inw_p = landisk_inw, + .mv_inl_p = landisk_inl, + .mv_outb_p = landisk_outb_p, + .mv_outw_p = landisk_outw, + .mv_outl_p = landisk_outl, + .mv_insb = landisk_insb, + .mv_insw = landisk_insw, + .mv_insl = landisk_insl, + .mv_outsb = landisk_outsb, + .mv_outsw = landisk_outsw, + .mv_outsl = landisk_outsl, + .mv_ioport_map = landisk_ioport_map, + .mv_init_irq = init_landisk_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_landisk, +#endif +}; +ALIAS_MV(landisk)
diff --git a/arch/sh/boards/mpc1211/rtc.c b/arch/sh/boards/mpc1211/rtc.c index a76c655..03b123a 100644 --- a/arch/sh/boards/mpc1211/rtc.c +++ b/arch/sh/boards/mpc1211/rtc.c
@@ -130,7 +130,7 @@ void mpc1211_time_init(void) { - rtc_get_time = mpc1211_rtc_gettimeofday; - rtc_set_time = mpc1211_rtc_settimeofday; + rtc_sh_get_time = mpc1211_rtc_gettimeofday; + rtc_sh_set_time = mpc1211_rtc_settimeofday; }
diff --git a/arch/sh/boards/mpc1211/setup.c b/arch/sh/boards/mpc1211/setup.c index 2bfb221..8eb5d43 100644 --- a/arch/sh/boards/mpc1211/setup.c +++ b/arch/sh/boards/mpc1211/setup.c
@@ -10,14 +10,12 @@ #include <linux/hdreg.h> #include <linux/ide.h> #include <linux/interrupt.h> - #include <asm/io.h> #include <asm/machvec.h> #include <asm/mpc1211/mpc1211.h> #include <asm/mpc1211/pci.h> #include <asm/mpc1211/m1543c.h> - /* ALI15X3 SMBus address offsets */ #define SMBHSTSTS (0 + 0x3100) #define SMBHSTCNT (1 + 0x3100) @@ -50,11 +48,6 @@ #define ALI15X3_STS_TERM 0x80 /* terminated by abort */ #define ALI15X3_STS_ERR 0xE0 /* all the bad error bits */ -const char *get_system_type(void) -{ - return "Interface MPC-1211(CTP/PCI/MPC-SH02)"; -} - static void __init pci_write_config(unsigned long busNo, unsigned long devNo, unsigned long fncNo, @@ -80,9 +73,6 @@ static void disable_mpc1211_irq(unsigned int irq) { - unsigned long flags; - - save_and_cli(flags); if( irq < 8) { m_irq_mask |= (1 << irq); outb(m_irq_mask,I8259_M_MR); @@ -90,16 +80,11 @@ s_irq_mask |= (1 << (irq - 8)); outb(s_irq_mask,I8259_S_MR); } - restore_flags(flags); } static void enable_mpc1211_irq(unsigned int irq) { - unsigned long flags; - - save_and_cli(flags); - if( irq < 8) { m_irq_mask &= ~(1 << irq); outb(m_irq_mask,I8259_M_MR); @@ -107,7 +92,6 @@ s_irq_mask &= ~(1 << (irq - 8)); outb(s_irq_mask,I8259_S_MR); } - restore_flags(flags); } static inline int mpc1211_irq_real(unsigned int irq) @@ -131,10 +115,6 @@ static void mask_and_ack_mpc1211(unsigned int irq) { - unsigned long flags; - - save_and_cli(flags); - if(irq < 8) { if(m_irq_mask & (1<<irq)){ if(!mpc1211_irq_real(irq)){ @@ -162,7 +142,6 @@ outb(0x60+(irq-8),I8259_S_CR); /* EOI */ outb(0x60+2,I8259_M_CR); } - restore_flags(flags); } static void end_mpc1211_irq(unsigned int irq) @@ -219,7 +198,7 @@ return irq; } -void __init init_mpc1211_IRQ(void) +static void __init init_mpc1211_IRQ(void) { int i; /* @@ -255,23 +234,12 @@ } } -/* - Initialize the board -*/ - - -static void delay (void) -{ - volatile unsigned short tmp; - tmp = *(volatile unsigned short *) 0xa0000000; -} - -static void delay1000 (void) +static void delay1000(void) { int i; for (i=0; i<1000; i++) - delay (); + ctrl_delay(); } static int put_smb_blk(unsigned char *p, int address, int command, int no) @@ -314,26 +282,10 @@ return 0; } -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_mpc1211 __initmv = { - .mv_nr_irqs = 48, - .mv_irq_demux = mpc1211_irq_demux, - .mv_init_irq = init_mpc1211_IRQ, - -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_mpc1211, -#endif -}; - -ALIAS_MV(mpc1211) - /* arch/sh/boards/mpc1211/rtc.c */ void mpc1211_time_init(void); -int __init platform_setup(void) +static void __init mpc1211_setup(char **cmdline_p) { unsigned char spd_buf[128]; @@ -357,3 +309,18 @@ return 0; } +/* + * The Machine Vector + */ +struct sh_machine_vector mv_mpc1211 __initmv = { + .mv_name = "Interface MPC-1211(CTP/PCI/MPC-SH02)", + .mv_setup = mpc1211_setup, + .mv_nr_irqs = 48, + .mv_irq_demux = mpc1211_irq_demux, + .mv_init_irq = init_mpc1211_IRQ, + +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_mpc1211, +#endif +}; +ALIAS_MV(mpc1211)
diff --git a/arch/sh/boards/overdrive/Makefile b/arch/sh/boards/overdrive/Makefile deleted file mode 100644 index 245f03b..0000000 --- a/arch/sh/boards/overdrive/Makefile +++ /dev/null
@@ -1,8 +0,0 @@ -# -# Makefile for the STMicroelectronics Overdrive specific parts of the kernel -# - -obj-y := mach.o setup.o io.o irq.o led.o - -obj-$(CONFIG_PCI) += fpga.o galileo.o pcidma.o -
diff --git a/arch/sh/boards/overdrive/fpga.c b/arch/sh/boards/overdrive/fpga.c deleted file mode 100644 index 956c239..0000000 --- a/arch/sh/boards/overdrive/fpga.c +++ /dev/null
@@ -1,133 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * This file handles programming up the Altera Flex10K that interfaces to - * the Galileo, and does the PS/2 keyboard and mouse - * - */ - - -#include <linux/kernel.h> -#include <linux/smp.h> -#include <linux/smp_lock.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/pci.h> -#include <linux/delay.h> - - -#include <asm/overdriver/gt64111.h> -#include <asm/overdrive/overdrive.h> -#include <asm/overdrive/fpga.h> - -#define FPGA_NotConfigHigh() (*FPGA_ControlReg) = (*FPGA_ControlReg) | ENABLE_FPGA_BIT -#define FPGA_NotConfigLow() (*FPGA_ControlReg) = (*FPGA_ControlReg) & RESET_FPGA_MASK - -/* I need to find out what (if any) the real delay factor here is */ -/* The delay is definately not critical */ -#define long_delay() {int i;for(i=0;i<10000;i++);} -#define short_delay() {int i;for(i=0;i<100;i++);} - -static void __init program_overdrive_fpga(const unsigned char *fpgacode, - int size) -{ - int timeout = 0; - int i, j; - unsigned char b; - static volatile unsigned char *FPGA_ControlReg = - (volatile unsigned char *) (OVERDRIVE_CTRL); - static volatile unsigned char *FPGA_ProgramReg = - (volatile unsigned char *) (FPGA_DCLK_ADDRESS); - - printk("FPGA: Commencing FPGA Programming\n"); - - /* The PCI reset but MUST be low when programming the FPGA !!! */ - b = (*FPGA_ControlReg) & RESET_PCI_MASK; - - (*FPGA_ControlReg) = b; - - /* Prepare FPGA to program */ - - FPGA_NotConfigHigh(); - long_delay(); - - FPGA_NotConfigLow(); - short_delay(); - - while ((*FPGA_ProgramReg & FPGA_NOT_STATUS) != 0) { - printk("FPGA: Waiting for NotStatus to go Low ... \n"); - } - - FPGA_NotConfigHigh(); - - /* Wait for FPGA "ready to be programmed" signal */ - printk("FPGA: Waiting for NotStatus to go high (FPGA ready)... \n"); - - for (timeout = 0; - (((*FPGA_ProgramReg & FPGA_NOT_STATUS) == 0) - && (timeout < FPGA_TIMEOUT)); timeout++); - - /* Check if timeout condition occured - i.e. an error */ - - if (timeout == FPGA_TIMEOUT) { - printk - ("FPGA: Failed to program - Timeout waiting for notSTATUS to go high\n"); - return; - } - - printk("FPGA: Copying data to FPGA ... %d bytes\n", size); - - /* Copy array to FPGA - bit at a time */ - - for (i = 0; i < size; i++) { - volatile unsigned w = 0; - - for (j = 0; j < 8; j++) { - *FPGA_ProgramReg = (fpgacode[i] >> j) & 0x01; - short_delay(); - } - if ((i & 0x3ff) == 0) { - printk("."); - } - } - - /* Waiting for CONFDONE to go high - means the program is complete */ - - for (timeout = 0; - (((*FPGA_ProgramReg & FPGA_CONFDONE) == 0) - && (timeout < FPGA_TIMEOUT)); timeout++) { - - *FPGA_ProgramReg = 0x0; - long_delay(); - } - - if (timeout == FPGA_TIMEOUT) { - printk - ("FPGA: Failed to program - Timeout waiting for CONFDONE to go high\n"); - return; - } else { /* Clock another 10 times - gets the device into a working state */ - for (i = 0; i < 10; i++) { - *FPGA_ProgramReg = 0x0; - short_delay(); - } - } - - printk("FPGA: Programming complete\n"); -} - - -static const unsigned char __init fpgacode[] = { -#include "./overdrive.ttf" /* Code from maxplus2 compiler */ - , 0, 0 -}; - - -int __init init_overdrive_fpga(void) -{ - program_overdrive_fpga(fpgacode, sizeof(fpgacode)); - - return 0; -}
diff --git a/arch/sh/boards/overdrive/galileo.c b/arch/sh/boards/overdrive/galileo.c deleted file mode 100644 index 29e4897..0000000 --- a/arch/sh/boards/overdrive/galileo.c +++ /dev/null
@@ -1,587 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * This file contains the PCI routines required for the Galileo GT6411 - * PCI bridge as used on the Orion and Overdrive boards. - * - */ - -#include <linux/kernel.h> -#include <linux/smp.h> -#include <linux/smp_lock.h> -#include <linux/init.h> -#include <linux/errno.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/types.h> -#include <linux/ioport.h> - -#include <asm/overdrive/overdrive.h> -#include <asm/overdrive/gt64111.h> - - -/* After boot, we shift the Galileo registers so that they appear - * in BANK6, along with IO space. This means we can have one contingous - * lump of PCI address space without these registers appearing in the - * middle of them - */ - -#define GT64111_BASE_ADDRESS 0xbb000000 -#define GT64111_IO_BASE_ADDRESS 0x1000 -/* The GT64111 registers appear at this address to the SH4 after reset */ -#define RESET_GT64111_BASE_ADDRESS 0xb4000000 - -/* Macros used to access the Galileo registers */ -#define RESET_GT64111_REG(x) (RESET_GT64111_BASE_ADDRESS+x) -#define GT64111_REG(x) (GT64111_BASE_ADDRESS+x) - -#define RESET_GT_WRITE(x,v) writel((v),RESET_GT64111_REG(x)) - -#define RESET_GT_READ(x) readl(RESET_GT64111_REG(x)) - -#define GT_WRITE(x,v) writel((v),GT64111_REG(x)) -#define GT_WRITE_BYTE(x,v) writeb((v),GT64111_REG(x)) -#define GT_WRITE_SHORT(x,v) writew((v),GT64111_REG(x)) - -#define GT_READ(x) readl(GT64111_REG(x)) -#define GT_READ_BYTE(x) readb(GT64111_REG(x)) -#define GT_READ_SHORT(x) readw(GT64111_REG(x)) - - -/* Where the various SH banks start at */ -#define SH_BANK4_ADR 0xb0000000 -#define SH_BANK5_ADR 0xb4000000 -#define SH_BANK6_ADR 0xb8000000 - -/* Masks out everything but lines 28,27,26 */ -#define BANK_SELECT_MASK 0x1c000000 - -#define SH4_TO_BANK(x) ( (x) & BANK_SELECT_MASK) - -/* - * Masks used for address conversaion. Bank 6 is used for IO and - * has all the address bits zeroed by the FPGA. Special case this - */ -#define MEMORY_BANK_MASK 0x1fffffff -#define IO_BANK_MASK 0x03ffffff - -/* Mark bank 6 as the bank used for IO. You can change this in the FPGA code - * if you want - */ -#define IO_BANK_ADR PCI_GTIO_BASE - -/* Will select the correct mask to apply depending on the SH$ address */ -#define SELECT_BANK_MASK(x) \ - ( (SH4_TO_BANK(x)==SH4_TO_BANK(IO_BANK_ADR)) ? IO_BANK_MASK : MEMORY_BANK_MASK) - -/* Converts between PCI space and P2 region */ -#define SH4_TO_PCI(x) ((x)&SELECT_BANK_MASK(x)) - -/* Various macros for figuring out what to stick in the Galileo registers. - * You *really* don't want to figure this stuff out by hand, you always get - * it wrong - */ -#define GT_MEM_LO_ADR(x) ((((unsigned)((x)&SELECT_BANK_MASK(x)))>>21)&0x7ff) -#define GT_MEM_HI_ADR(x) ((((unsigned)((x)&SELECT_BANK_MASK(x)))>>21)&0x7f) -#define GT_MEM_SUB_ADR(x) ((((unsigned)((x)&SELECT_BANK_MASK(x)))>>20)&0xff) - -#define PROGRAM_HI_LO(block,a,s) \ - GT_WRITE(block##_LO_DEC_ADR,GT_MEM_LO_ADR(a));\ - GT_WRITE(block##_HI_DEC_ADR,GT_MEM_HI_ADR(a+s-1)) - -#define PROGRAM_SUB_HI_LO(block,a,s) \ - GT_WRITE(block##_LO_DEC_ADR,GT_MEM_SUB_ADR(a));\ - GT_WRITE(block##_HI_DEC_ADR,GT_MEM_SUB_ADR(a+s-1)) - -/* We need to set the size, and the offset register */ - -#define GT_BAR_MASK(x) ((x)&~0xfff) - -/* Macro to set up the BAR in the Galileo. Essentially used for the DRAM */ -#define PROGRAM_GT_BAR(block,a,s) \ - GT_WRITE(PCI_##block##_BANK_SIZE,GT_BAR_MASK((s-1)));\ - write_config_to_galileo(PCI_CONFIG_##block##_BASE_ADR,\ - GT_BAR_MASK(a)) - -#define DISABLE_GT_BAR(block) \ - GT_WRITE(PCI_##block##_BANK_SIZE,0),\ - GT_CONFIG_WRITE(PCI_CONFIG_##block##_BASE_ADR,\ - 0x80000000) - -/* Macros to disable things we are not going to use */ -#define DISABLE_DECODE(x) GT_WRITE(x##_LO_DEC_ADR,0x7ff);\ - GT_WRITE(x##_HI_DEC_ADR,0x00) - -#define DISABLE_SUB_DECODE(x) GT_WRITE(x##_LO_DEC_ADR,0xff);\ - GT_WRITE(x##_HI_DEC_ADR,0x00) - -static void __init reset_pci(void) -{ - /* Set RESET_PCI bit high */ - writeb(readb(OVERDRIVE_CTRL) | ENABLE_PCI_BIT, OVERDRIVE_CTRL); - udelay(250); - - /* Set RESET_PCI bit low */ - writeb(readb(OVERDRIVE_CTRL) & RESET_PCI_MASK, OVERDRIVE_CTRL); - udelay(250); - - writeb(readb(OVERDRIVE_CTRL) | ENABLE_PCI_BIT, OVERDRIVE_CTRL); - udelay(250); -} - -static int write_config_to_galileo(int where, u32 val); -#define GT_CONFIG_WRITE(where,val) write_config_to_galileo(where,val) - -#define ENABLE_PCI_DRAM - - -#ifdef TEST_DRAM -/* Test function to check out if the PCI DRAM is working OK */ -static int /* __init */ test_dram(unsigned *base, unsigned size) -{ - unsigned *p = base; - unsigned *end = (unsigned *) (((unsigned) base) + size); - unsigned w; - - for (p = base; p < end; p++) { - *p = 0xffffffff; - if (*p != 0xffffffff) { - printk("AAARGH -write failed!!! at %p is %x\n", p, - *p); - return 0; - } - *p = 0x0; - if (*p != 0x0) { - printk("AAARGH -write failed!!!\n"); - return 0; - } - } - - for (p = base; p < end; p++) { - *p = (unsigned) p; - if (*p != (unsigned) p) { - printk("Failed at 0x%p, actually is 0x%x\n", p, - *p); - return 0; - } - } - - for (p = base; p < end; p++) { - w = ((unsigned) p & 0xffff0000); - *p = w | (w >> 16); - } - - for (p = base; p < end; p++) { - w = ((unsigned) p & 0xffff0000); - w |= (w >> 16); - if (*p != w) { - printk - ("Failed at 0x%p, should be 0x%x actually is 0x%x\n", - p, w, *p); - return 0; - } - } - - return 1; -} -#endif - - -/* Function to set up and initialise the galileo. This sets up the BARS, - * maps the DRAM into the address space etc,etc - */ -int __init galileo_init(void) -{ - reset_pci(); - - /* Now shift the galileo regs into this block */ - RESET_GT_WRITE(INTERNAL_SPACE_DEC, - GT_MEM_LO_ADR(GT64111_BASE_ADDRESS)); - - /* Should have a sanity check here, that you can read back at the new - * address what you just wrote - */ - - /* Disable decode for all regions */ - DISABLE_DECODE(RAS10); - DISABLE_DECODE(RAS32); - DISABLE_DECODE(CS20); - DISABLE_DECODE(CS3); - DISABLE_DECODE(PCI_IO); - DISABLE_DECODE(PCI_MEM0); - DISABLE_DECODE(PCI_MEM1); - - /* Disable all BARS */ - GT_WRITE(BAR_ENABLE_ADR, 0x1ff); - DISABLE_GT_BAR(RAS10); - DISABLE_GT_BAR(RAS32); - DISABLE_GT_BAR(CS20); - DISABLE_GT_BAR(CS3); - - /* Tell the BAR where the IO registers now are */ - GT_CONFIG_WRITE(PCI_CONFIG_INT_REG_IO_ADR,GT_BAR_MASK( - (GT64111_IO_BASE_ADDRESS & - IO_BANK_MASK))); - /* set up a 112 Mb decode */ - PROGRAM_HI_LO(PCI_MEM0, SH_BANK4_ADR, 112 * 1024 * 1024); - - /* Set up a 32 MB io space decode */ - PROGRAM_HI_LO(PCI_IO, IO_BANK_ADR, 32 * 1024 * 1024); - -#ifdef ENABLE_PCI_DRAM - /* Program up the DRAM configuration - there is DRAM only in bank 0 */ - /* Now set up the DRAM decode */ - PROGRAM_HI_LO(RAS10, PCI_DRAM_BASE, PCI_DRAM_SIZE); - /* And the sub decode */ - PROGRAM_SUB_HI_LO(RAS0, PCI_DRAM_BASE, PCI_DRAM_SIZE); - - DISABLE_SUB_DECODE(RAS1); - - /* Set refresh rate */ - GT_WRITE(DRAM_BANK0_PARMS, 0x3f); - GT_WRITE(DRAM_CFG, 0x100); - - /* we have to lob off the top bits rememeber!! */ - PROGRAM_GT_BAR(RAS10, SH4_TO_PCI(PCI_DRAM_BASE), PCI_DRAM_SIZE); - -#endif - - /* We are only interested in decoding RAS10 and the Galileo's internal - * registers (as IO) on the PCI bus - */ -#ifdef ENABLE_PCI_DRAM - GT_WRITE(BAR_ENABLE_ADR, (~((1 << 8) | (1 << 3))) & 0x1ff); -#else - GT_WRITE(BAR_ENABLE_ADR, (~(1 << 3)) & 0x1ff); -#endif - - /* Change the class code to host bridge, it actually powers up - * as a memory controller - */ - GT_CONFIG_WRITE(8, 0x06000011); - - /* Allow the galileo to master the PCI bus */ - GT_CONFIG_WRITE(PCI_COMMAND, - PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | - PCI_COMMAND_IO); - - -#if 0 - printk("Testing PCI DRAM - "); - if(test_dram(PCI_DRAM_BASE,PCI_DRAM_SIZE)) { - printk("Passed\n"); - }else { - printk("FAILED\n"); - } -#endif - return 0; - -} - - -#define SET_CONFIG_BITS(bus,devfn,where)\ - ((1<<31) | ((bus) << 16) | ((devfn) << 8) | ((where) & ~3)) - -#define CONFIG_CMD(dev, where) SET_CONFIG_BITS((dev)->bus->number,(dev)->devfn,where) - -/* This write to the galileo config registers, unlike the functions below, can - * be used before the PCI subsystem has started up - */ -static int __init write_config_to_galileo(int where, u32 val) -{ - GT_WRITE(PCI_CFG_ADR, SET_CONFIG_BITS(0, 0, where)); - - GT_WRITE(PCI_CFG_DATA, val); - return 0; -} - -/* We exclude the galileo and slot 31, the galileo because I don't know how to stop - * the setup code shagging up the setup I have done on it, and 31 because the whole - * thing locks up if you try to access that slot (which doesn't exist of course anyway - */ - -#define EXCLUDED_DEV(dev) ((dev->bus->number==0) && ((PCI_SLOT(dev->devfn)==0) || (PCI_SLOT(dev->devfn) == 31))) - -static int galileo_read_config_byte(struct pci_dev *dev, int where, - u8 * val) -{ - - - /* I suspect this doesn't work because this drives a special cycle ? */ - if (EXCLUDED_DEV(dev)) { - *val = 0xff; - return PCIBIOS_SUCCESSFUL; - } - /* Start the config cycle */ - GT_WRITE(PCI_CFG_ADR, CONFIG_CMD(dev, where)); - /* Read back the result */ - *val = GT_READ_BYTE(PCI_CFG_DATA + (where & 3)); - - return PCIBIOS_SUCCESSFUL; -} - - -static int galileo_read_config_word(struct pci_dev *dev, int where, - u16 * val) -{ - - if (EXCLUDED_DEV(dev)) { - *val = 0xffff; - return PCIBIOS_SUCCESSFUL; - } - - GT_WRITE(PCI_CFG_ADR, CONFIG_CMD(dev, where)); - *val = GT_READ_SHORT(PCI_CFG_DATA + (where & 2)); - - return PCIBIOS_SUCCESSFUL; -} - - -static int galileo_read_config_dword(struct pci_dev *dev, int where, - u32 * val) -{ - if (EXCLUDED_DEV(dev)) { - *val = 0xffffffff; - return PCIBIOS_SUCCESSFUL; - } - - GT_WRITE(PCI_CFG_ADR, CONFIG_CMD(dev, where)); - *val = GT_READ(PCI_CFG_DATA); - - return PCIBIOS_SUCCESSFUL; -} - -static int galileo_write_config_byte(struct pci_dev *dev, int where, - u8 val) -{ - GT_WRITE(PCI_CFG_ADR, CONFIG_CMD(dev, where)); - - GT_WRITE_BYTE(PCI_CFG_DATA + (where & 3), val); - - return PCIBIOS_SUCCESSFUL; -} - - -static int galileo_write_config_word(struct pci_dev *dev, int where, - u16 val) -{ - GT_WRITE(PCI_CFG_ADR, CONFIG_CMD(dev, where)); - - GT_WRITE_SHORT(PCI_CFG_DATA + (where & 2), val); - - return PCIBIOS_SUCCESSFUL; -} - -static int galileo_write_config_dword(struct pci_dev *dev, int where, - u32 val) -{ - GT_WRITE(PCI_CFG_ADR, CONFIG_CMD(dev, where)); - - GT_WRITE(PCI_CFG_DATA, val); - - return PCIBIOS_SUCCESSFUL; -} - -static struct pci_ops pci_config_ops = { - galileo_read_config_byte, - galileo_read_config_word, - galileo_read_config_dword, - galileo_write_config_byte, - galileo_write_config_word, - galileo_write_config_dword -}; - - -/* Everything hangs off this */ -static struct pci_bus *pci_root_bus; - - -static u8 __init no_swizzle(struct pci_dev *dev, u8 * pin) -{ - return PCI_SLOT(dev->devfn); -} - -static int __init map_od_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - /* Slot 1: Galileo - * Slot 2: PCI Slot 1 - * Slot 3: PCI Slot 2 - * Slot 4: ESS - */ - switch (slot) { - case 2: - return OVERDRIVE_PCI_IRQ1; - case 3: - /* Note this assumes you have a hacked card in slot 2 */ - return OVERDRIVE_PCI_IRQ2; - case 4: - return OVERDRIVE_ESS_IRQ; - default: - /* printk("PCI: Unexpected IRQ mapping request for slot %d\n", slot); */ - return -1; - } -} - - - -void __init -pcibios_fixup_pbus_ranges(struct pci_bus *bus, struct pbus_set_ranges_data *ranges) -{ - ranges->io_start -= bus->resource[0]->start; - ranges->io_end -= bus->resource[0]->start; - ranges->mem_start -= bus->resource[1]->start; - ranges->mem_end -= bus->resource[1]->start; -} - -static void __init pci_fixup_ide_bases(struct pci_dev *d) -{ - int i; - - /* - * PCI IDE controllers use non-standard I/O port decoding, respect it. - */ - if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE) - return; - printk("PCI: IDE base address fixup for %s\n", pci_name(d)); - for(i=0; i<4; i++) { - struct resource *r = &d->resource[i]; - if ((r->start & ~0x80) == 0x374) { - r->start |= 2; - r->end = r->start; - } - } -} -DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases); - -void __init pcibios_init(void) -{ - static struct resource galio,galmem; - - /* Allocate the registers used by the Galileo */ - galio.flags = IORESOURCE_IO; - galio.name = "Galileo GT64011"; - galmem.flags = IORESOURCE_MEM|IORESOURCE_PREFETCH; - galmem.name = "Galileo GT64011 DRAM"; - - allocate_resource(&ioport_resource, &galio, 256, - GT64111_IO_BASE_ADDRESS,GT64111_IO_BASE_ADDRESS+256, 256, NULL, NULL); - allocate_resource(&iomem_resource, &galmem,PCI_DRAM_SIZE, - PHYSADDR(PCI_DRAM_BASE), PHYSADDR(PCI_DRAM_BASE)+PCI_DRAM_SIZE, - PCI_DRAM_SIZE, NULL, NULL); - - /* ok, do the scan man */ - pci_root_bus = pci_scan_bus(0, &pci_config_ops, NULL); - - pci_assign_unassigned_resources(); - pci_fixup_irqs(no_swizzle, map_od_irq); - -#ifdef TEST_DRAM - printk("Testing PCI DRAM - "); - if(test_dram(PCI_DRAM_BASE,PCI_DRAM_SIZE)) { - printk("Passed\n"); - }else { - printk("FAILED\n"); - } -#endif - -} - -char * __init pcibios_setup(char *str) -{ - return str; -} - - - -int pcibios_enable_device(struct pci_dev *dev) -{ - - u16 cmd, old_cmd; - int idx; - struct resource *r; - - pci_read_config_word(dev, PCI_COMMAND, &cmd); - old_cmd = cmd; - for (idx = 0; idx < 6; idx++) { - r = dev->resource + idx; - if (!r->start && r->end) { - printk(KERN_ERR - "PCI: Device %s not available because" - " of resource collisions\n", - pci_name(dev)); - return -EINVAL; - } - if (r->flags & IORESOURCE_IO) - cmd |= PCI_COMMAND_IO; - if (r->flags & IORESOURCE_MEM) - cmd |= PCI_COMMAND_MEMORY; - } - if (cmd != old_cmd) { - printk("PCI: enabling device %s (%04x -> %04x)\n", - pci_name(dev), old_cmd, cmd); - pci_write_config_word(dev, PCI_COMMAND, cmd); - } - return 0; - -} - -/* We should do some optimisation work here I think. Ok for now though */ -void __init pcibios_fixup_bus(struct pci_bus *bus) -{ - -} - -void pcibios_align_resource(void *data, struct resource *res, - resource_size_t size) -{ -} - -void __init pcibios_update_resource(struct pci_dev *dev, struct resource *root, - struct resource *res, int resource) -{ - - unsigned long where, size; - u32 reg; - - - printk("PCI: Assigning %3s %08lx to %s\n", - res->flags & IORESOURCE_IO ? "IO" : "MEM", - res->start, dev->name); - - where = PCI_BASE_ADDRESS_0 + resource * 4; - size = res->end - res->start; - - pci_read_config_dword(dev, where, ®); - reg = (reg & size) | (((u32) (res->start - root->start)) & ~size); - pci_write_config_dword(dev, where, reg); -} - - -void __init pcibios_update_irq(struct pci_dev *dev, int irq) -{ - printk("PCI: Assigning IRQ %02d to %s\n", irq, dev->name); - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq); -} - -/* - * If we set up a device for bus mastering, we need to check the latency - * timer as certain crappy BIOSes forget to set it properly. - */ -unsigned int pcibios_max_latency = 255; - -void pcibios_set_master(struct pci_dev *dev) -{ - u8 lat; - pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); - if (lat < 16) - lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency; - else if (lat > pcibios_max_latency) - lat = pcibios_max_latency; - else - return; - printk("PCI: Setting latency timer of device %s to %d\n", pci_name(dev), lat); - pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); -}
diff --git a/arch/sh/boards/overdrive/io.c b/arch/sh/boards/overdrive/io.c deleted file mode 100644 index 4671b6b..0000000 --- a/arch/sh/boards/overdrive/io.c +++ /dev/null
@@ -1,172 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * This file contains the I/O routines for use on the overdrive board - * - */ - -#include <linux/types.h> -#include <linux/delay.h> -#include <asm/processor.h> -#include <asm/io.h> -#include <asm/addrspace.h> - -#include <asm/overdrive/overdrive.h> - -/* - * readX/writeX() are used to access memory mapped devices. On some - * architectures the memory mapped IO stuff needs to be accessed - * differently. On the SuperH architecture, we just read/write the - * memory location directly. - */ - -#define dprintk(x...) - -/* Translates an IO address to where it is mapped in memory */ - -#define io_addr(x) (((unsigned)(x))|PCI_GTIO_BASE) - -unsigned char od_inb(unsigned long port) -{ -dprintk("od_inb(%x)\n", port); - return readb(io_addr(port)) & 0xff; -} - - -unsigned short od_inw(unsigned long port) -{ -dprintk("od_inw(%x)\n", port); - return readw(io_addr(port)) & 0xffff; -} - -unsigned int od_inl(unsigned long port) -{ -dprintk("od_inl(%x)\n", port); - return readl(io_addr(port)); -} - -void od_outb(unsigned char value, unsigned long port) -{ -dprintk("od_outb(%x, %x)\n", value, port); - writeb(value, io_addr(port)); -} - -void od_outw(unsigned short value, unsigned long port) -{ -dprintk("od_outw(%x, %x)\n", value, port); - writew(value, io_addr(port)); -} - -void od_outl(unsigned int value, unsigned long port) -{ -dprintk("od_outl(%x, %x)\n", value, port); - writel(value, io_addr(port)); -} - -/* This is horrible at the moment - needs more work to do something sensible */ -#define IO_DELAY() udelay(10) - -#define OUT_DELAY(x,type) \ -void od_out##x##_p(unsigned type value,unsigned long port){out##x(value,port);IO_DELAY();} - -#define IN_DELAY(x,type) \ -unsigned type od_in##x##_p(unsigned long port) {unsigned type tmp=in##x(port);IO_DELAY();return tmp;} - - -OUT_DELAY(b,char) -OUT_DELAY(w,short) -OUT_DELAY(l,int) - -IN_DELAY(b,char) -IN_DELAY(w,short) -IN_DELAY(l,int) - - -/* Now for the string version of these functions */ -void od_outsb(unsigned long port, const void *addr, unsigned long count) -{ - int i; - unsigned char *p = (unsigned char *) addr; - - for (i = 0; i < count; i++, p++) { - outb(*p, port); - } -} - - -void od_insb(unsigned long port, void *addr, unsigned long count) -{ - int i; - unsigned char *p = (unsigned char *) addr; - - for (i = 0; i < count; i++, p++) { - *p = inb(port); - } -} - -/* For the 16 and 32 bit string functions, we have to worry about alignment. - * The SH does not do unaligned accesses, so we have to read as bytes and - * then write as a word or dword. - * This can be optimised a lot more, especially in the case where the data - * is aligned - */ - -void od_outsw(unsigned long port, const void *addr, unsigned long count) -{ - int i; - unsigned short tmp; - unsigned char *p = (unsigned char *) addr; - - for (i = 0; i < count; i++, p += 2) { - tmp = (*p) | ((*(p + 1)) << 8); - outw(tmp, port); - } -} - - -void od_insw(unsigned long port, void *addr, unsigned long count) -{ - int i; - unsigned short tmp; - unsigned char *p = (unsigned char *) addr; - - for (i = 0; i < count; i++, p += 2) { - tmp = inw(port); - p[0] = tmp & 0xff; - p[1] = (tmp >> 8) & 0xff; - } -} - - -void od_outsl(unsigned long port, const void *addr, unsigned long count) -{ - int i; - unsigned tmp; - unsigned char *p = (unsigned char *) addr; - - for (i = 0; i < count; i++, p += 4) { - tmp = (*p) | ((*(p + 1)) << 8) | ((*(p + 2)) << 16) | - ((*(p + 3)) << 24); - outl(tmp, port); - } -} - - -void od_insl(unsigned long port, void *addr, unsigned long count) -{ - int i; - unsigned tmp; - unsigned char *p = (unsigned char *) addr; - - for (i = 0; i < count; i++, p += 4) { - tmp = inl(port); - p[0] = tmp & 0xff; - p[1] = (tmp >> 8) & 0xff; - p[2] = (tmp >> 16) & 0xff; - p[3] = (tmp >> 24) & 0xff; - - } -}
diff --git a/arch/sh/boards/overdrive/irq.c b/arch/sh/boards/overdrive/irq.c deleted file mode 100644 index 5d730c7..0000000 --- a/arch/sh/boards/overdrive/irq.c +++ /dev/null
@@ -1,191 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Looks after interrupts on the overdrive board. - * - * Bases on the IPR irq system - */ - -#include <linux/init.h> -#include <linux/irq.h> - -#include <asm/system.h> -#include <asm/io.h> - -#include <asm/overdrive/overdrive.h> - -struct od_data { - int overdrive_irq; - int irq_mask; -}; - -#define NUM_EXTERNAL_IRQS 16 -#define EXTERNAL_IRQ_NOT_IN_USE (-1) -#define EXTERNAL_IRQ_NOT_ASSIGNED (-1) - -/* - * This table is used to determine what to program into the FPGA's CT register - * for the specified Linux IRQ. - * - * The irq_mask gives the interrupt number from the PCI board (PCI_Int(6:0)) - * but is one greater than that because the because the FPGA treats 0 - * as disabled, a value of 1 asserts PCI_Int0, and so on. - * - * The overdrive_irq specifies which of the eight interrupt sources generates - * that interrupt, and but is multiplied by four to give the bit offset into - * the CT register. - * - * The seven interrupts levels (SH4 IRL's) we have available here is hardwired - * by the EPLD. The assignments here of which PCI interrupt generates each - * level is arbitary. - */ -static struct od_data od_data_table[NUM_EXTERNAL_IRQS] = { - /* overdrive_irq , irq_mask */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 0 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 7}, /* 1 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 6}, /* 2 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 3 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 5}, /* 4 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 5 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 6 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 4}, /* 7 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 8 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 9 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 3}, /* 10 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 2}, /* 11 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 12 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, 1}, /* 13 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE}, /* 14 */ - {EXTERNAL_IRQ_NOT_ASSIGNED, EXTERNAL_IRQ_NOT_IN_USE} /* 15 */ -}; - -static void set_od_data(int overdrive_irq, int irq) -{ - if (irq >= NUM_EXTERNAL_IRQS || irq < 0) - return; - od_data_table[irq].overdrive_irq = overdrive_irq << 2; -} - -static void enable_od_irq(unsigned int irq); -void disable_od_irq(unsigned int irq); - -/* shutdown is same as "disable" */ -#define shutdown_od_irq disable_od_irq - -static void mask_and_ack_od(unsigned int); -static void end_od_irq(unsigned int irq); - -static unsigned int startup_od_irq(unsigned int irq) -{ - enable_od_irq(irq); - return 0; /* never anything pending */ -} - -static struct hw_interrupt_type od_irq_type = { - .typename = "Overdrive-IRQ", - .startup = startup_od_irq, - .shutdown = shutdown_od_irq, - .enable = enable_od_irq, - .disable = disable_od_irq, - .ack = mask_and_ack_od, - .end = end_od_irq -}; - -static void disable_od_irq(unsigned int irq) -{ - unsigned val, flags; - int overdrive_irq; - unsigned mask; - - /* Not a valid interrupt */ - if (irq < 0 || irq >= NUM_EXTERNAL_IRQS) - return; - - /* Is is necessary to use a cli here? Would a spinlock not be - * mroe efficient? - */ - local_irq_save(flags); - overdrive_irq = od_data_table[irq].overdrive_irq; - if (overdrive_irq != EXTERNAL_IRQ_NOT_ASSIGNED) { - mask = ~(0x7 << overdrive_irq); - val = ctrl_inl(OVERDRIVE_INT_CT); - val &= mask; - ctrl_outl(val, OVERDRIVE_INT_CT); - } - local_irq_restore(flags); -} - -static void enable_od_irq(unsigned int irq) -{ - unsigned val, flags; - int overdrive_irq; - unsigned mask; - - /* Not a valid interrupt */ - if (irq < 0 || irq >= NUM_EXTERNAL_IRQS) - return; - - /* Set priority in OD back to original value */ - local_irq_save(flags); - /* This one is not in use currently */ - overdrive_irq = od_data_table[irq].overdrive_irq; - if (overdrive_irq != EXTERNAL_IRQ_NOT_ASSIGNED) { - val = ctrl_inl(OVERDRIVE_INT_CT); - mask = ~(0x7 << overdrive_irq); - val &= mask; - mask = od_data_table[irq].irq_mask << overdrive_irq; - val |= mask; - ctrl_outl(val, OVERDRIVE_INT_CT); - } - local_irq_restore(flags); -} - - - -/* this functions sets the desired irq handler to be an overdrive type */ -static void __init make_od_irq(unsigned int irq) -{ - disable_irq_nosync(irq); - irq_desc[irq].chip = &od_irq_type; - disable_od_irq(irq); -} - - -static void mask_and_ack_od(unsigned int irq) -{ - disable_od_irq(irq); -} - -static void end_od_irq(unsigned int irq) -{ - enable_od_irq(irq); -} - -void __init init_overdrive_irq(void) -{ - int i; - - /* Disable all interrupts */ - ctrl_outl(0, OVERDRIVE_INT_CT); - - /* Update interrupt pin mode to use encoded interrupts */ - i = ctrl_inw(INTC_ICR); - i &= ~INTC_ICR_IRLM; - ctrl_outw(i, INTC_ICR); - - for (i = 0; i < NUM_EXTERNAL_IRQS; i++) { - if (od_data_table[i].irq_mask != EXTERNAL_IRQ_NOT_IN_USE) { - make_od_irq(i); - } else if (i != 15) { // Cannot use imask on level 15 - make_imask_irq(i); - } - } - - /* Set up the interrupts */ - set_od_data(OVERDRIVE_PCI_INTA, OVERDRIVE_PCI_IRQ1); - set_od_data(OVERDRIVE_PCI_INTB, OVERDRIVE_PCI_IRQ2); - set_od_data(OVERDRIVE_AUDIO_INT, OVERDRIVE_ESS_IRQ); -}
diff --git a/arch/sh/boards/overdrive/led.c b/arch/sh/boards/overdrive/led.c deleted file mode 100644 index 860d7f2..0000000 --- a/arch/sh/boards/overdrive/led.c +++ /dev/null
@@ -1,58 +0,0 @@ -/* - * linux/arch/sh/overdrive/led.c - * - * Copyright (C) 1999 Stuart Menefy <stuart.menefy@st.com> - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * This file contains an Overdrive specific LED feature. - */ - -#include <asm/system.h> -#include <asm/io.h> -#include <asm/overdrive/overdrive.h> - -static void mach_led(int position, int value) -{ - unsigned long flags; - unsigned long reg; - - local_irq_save(flags); - - reg = readl(OVERDRIVE_CTRL); - if (value) { - reg |= (1<<3); - } else { - reg &= ~(1<<3); - } - writel(reg, OVERDRIVE_CTRL); - - local_irq_restore(flags); -} - -#ifdef CONFIG_HEARTBEAT - -#include <linux/sched.h> - -/* acts like an actual heart beat -- ie thump-thump-pause... */ -void heartbeat_od(void) -{ - static unsigned cnt = 0, period = 0, dist = 0; - - if (cnt == 0 || cnt == dist) - mach_led( -1, 1); - else if (cnt == 7 || cnt == dist+7) - mach_led( -1, 0); - - if (++cnt > period) { - cnt = 0; - /* The hyperbolic function below modifies the heartbeat period - * length in dependency of the current (5min) load. It goes - * through the points f(0)=126, f(1)=86, f(5)=51, - * f(inf)->30. */ - period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; - dist = period / 4; - } -} -#endif /* CONFIG_HEARTBEAT */
diff --git a/arch/sh/boards/overdrive/mach.c b/arch/sh/boards/overdrive/mach.c deleted file mode 100644 index 2834a03..0000000 --- a/arch/sh/boards/overdrive/mach.c +++ /dev/null
@@ -1,62 +0,0 @@ -/* - * linux/arch/sh/overdrive/mach.c - * - * Copyright (C) 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Machine vector for the STMicroelectronics Overdrive - */ - -#include <linux/init.h> - -#include <asm/machvec.h> -#include <asm/rtc.h> -#include <asm/machvec_init.h> - -#include <asm/io_unknown.h> -#include <asm/io_generic.h> -#include <asm/overdrive/io.h> - -void heartbeat_od(void); -void init_overdrive_irq(void); -void galileo_pcibios_init(void); - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_od __initmv = { - .mv_nr_irqs = 48, - - .mv_inb = od_inb, - .mv_inw = od_inw, - .mv_inl = od_inl, - .mv_outb = od_outb, - .mv_outw = od_outw, - .mv_outl = od_outl, - - .mv_inb_p = od_inb_p, - .mv_inw_p = od_inw_p, - .mv_inl_p = od_inl_p, - .mv_outb_p = od_outb_p, - .mv_outw_p = od_outw_p, - .mv_outl_p = od_outl_p, - - .mv_insb = od_insb, - .mv_insw = od_insw, - .mv_insl = od_insl, - .mv_outsb = od_outsb, - .mv_outsw = od_outsw, - .mv_outsl = od_outsl, - -#ifdef CONFIG_PCI - .mv_init_irq = init_overdrive_irq, -#endif -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_od, -#endif -}; - -ALIAS_MV(od)
diff --git a/arch/sh/boards/overdrive/pcidma.c b/arch/sh/boards/overdrive/pcidma.c deleted file mode 100644 index 1c9bfed..0000000 --- a/arch/sh/boards/overdrive/pcidma.c +++ /dev/null
@@ -1,46 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Dynamic DMA mapping support. - * - * On the overdrive, we can only DMA from memory behind the PCI bus! - * this means that all DMA'able memory must come from there. - * this restriction will not apply to later boards. - */ - -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/string.h> -#include <linux/pci.h> -#include <asm/io.h> - -void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size, - dma_addr_t * dma_handle) -{ - void *ret; - int gfp = GFP_ATOMIC; - - printk("BUG: pci_alloc_consistent() called - not yet supported\n"); - /* We ALWAYS need DMA memory on the overdrive hardware, - * due to it's extreme weirdness - * Need to flush the cache here as well, since the memory - * can still be seen through the cache! - */ - gfp |= GFP_DMA; - ret = (void *) __get_free_pages(gfp, get_order(size)); - - if (ret != NULL) { - memset(ret, 0, size); - *dma_handle = virt_to_bus(ret); - } - return ret; -} - -void pci_free_consistent(struct pci_dev *hwdev, size_t size, - void *vaddr, dma_addr_t dma_handle) -{ - free_pages((unsigned long) vaddr, get_order(size)); -}
diff --git a/arch/sh/boards/overdrive/setup.c b/arch/sh/boards/overdrive/setup.c deleted file mode 100644 index a3a7744..0000000 --- a/arch/sh/boards/overdrive/setup.c +++ /dev/null
@@ -1,36 +0,0 @@ -/* - * arch/sh/overdrive/setup.c - * - * Copyright (C) 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * STMicroelectronics Overdrive Support. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <asm/io.h> - -#include <asm/overdrive/overdrive.h> -#include <asm/overdrive/fpga.h> - -const char *get_system_type(void) -{ - return "SH7750 Overdrive"; -} - -/* - * Initialize the board - */ -int __init platform_setup(void) -{ -#ifdef CONFIG_PCI - init_overdrive_fpga(); - galileo_init(); -#endif - - /* Enable RS232 receive buffers */ - writel(0x1e, OVERDRIVE_CTRL); -}
diff --git a/arch/sh/boards/renesas/edosk7705/Makefile b/arch/sh/boards/renesas/edosk7705/Makefile index 7fccbf2..14bdd53 100644 --- a/arch/sh/boards/renesas/edosk7705/Makefile +++ b/arch/sh/boards/renesas/edosk7705/Makefile
@@ -1,10 +1,6 @@ # # Makefile for the EDOSK7705 specific parts of the kernel # -# Note! Dependencies are done automagically by 'make dep', which also -# removes any old dependencies. DON'T put your own dependencies here -# unless it's something special (ie not a .c file). -# obj-y := setup.o io.o
diff --git a/arch/sh/boards/renesas/edosk7705/setup.c b/arch/sh/boards/renesas/edosk7705/setup.c index ba143fa..ec5be01 100644 --- a/arch/sh/boards/renesas/edosk7705/setup.c +++ b/arch/sh/boards/renesas/edosk7705/setup.c
@@ -8,19 +8,21 @@ * Modified for edosk7705 development * board by S. Dunn, 2003. */ - #include <linux/init.h> #include <asm/machvec.h> -#include <asm/machvec_init.h> #include <asm/edosk7705/io.h> -static void init_edosk7705(void); +static void __init sh_edosk7705_init_irq(void) +{ + /* This is the Ethernet interrupt */ + make_imask_irq(0x09); +} /* * The Machine Vector */ - struct sh_machine_vector mv_edosk7705 __initmv = { + .mv_name = "EDOSK7705", .mv_nr_irqs = 80, .mv_inb = sh_edosk7705_inb, @@ -37,23 +39,6 @@ .mv_outsl = sh_edosk7705_outsl, .mv_isa_port2addr = sh_edosk7705_isa_port2addr, - .mv_init_irq = init_edosk7705, + .mv_init_irq = sh_edosk7705_init_irq, }; ALIAS_MV(edosk7705) - -static void __init init_edosk7705(void) -{ - /* This is the Ethernet interrupt */ - make_imask_irq(0x09); -} - -const char *get_system_type(void) -{ - return "EDOSK7705"; -} - -void __init platform_setup(void) -{ - /* Nothing .. */ -} -
diff --git a/arch/sh/boards/renesas/hs7751rvoip/Kconfig b/arch/sh/boards/renesas/hs7751rvoip/Kconfig new file mode 100644 index 0000000..1743be4 --- /dev/null +++ b/arch/sh/boards/renesas/hs7751rvoip/Kconfig
@@ -0,0 +1,12 @@ +if SH_HS7751RVOIP + +menu "HS7751RVoIP options" + +config HS7751RVOIP_CODEC + bool "Support VoIP Codec section" + help + Selecting this option will support CODEC section. + +endmenu + +endif
diff --git a/arch/sh/boards/renesas/hs7751rvoip/Makefile b/arch/sh/boards/renesas/hs7751rvoip/Makefile index e8b4109..e626377 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/Makefile +++ b/arch/sh/boards/renesas/hs7751rvoip/Makefile
@@ -1,12 +1,8 @@ # # Makefile for the HS7751RVoIP specific parts of the kernel # -# Note! Dependencies are done automagically by 'make dep', which also -# removes any old dependencies. DON'T put your own dependencies here -# unless it's something special (ie not a .c file). -# -obj-y := mach.o setup.o io.o irq.o led.o +obj-y := setup.o io.o irq.o obj-$(CONFIG_PCI) += pci.o
diff --git a/arch/sh/boards/renesas/hs7751rvoip/io.c b/arch/sh/boards/renesas/hs7751rvoip/io.c index 3a1abfa..9ea1136 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/io.c +++ b/arch/sh/boards/renesas/hs7751rvoip/io.c
@@ -10,21 +10,16 @@ * placeholder code from io_hs7751rvoip.c left in with the * expectation of later SuperIO and PCMCIA access. */ - #include <linux/kernel.h> #include <linux/types.h> +#include <linux/module.h> +#include <linux/pci.h> #include <asm/io.h> #include <asm/hs7751rvoip/hs7751rvoip.h> #include <asm/addrspace.h> -#include <linux/module.h> -#include <linux/pci.h> -#include "../../../drivers/pci/pci-sh7751.h" - -extern void *area5_io8_base; /* Area 5 8bit I/O Base address */ extern void *area6_io8_base; /* Area 6 8bit I/O Base address */ extern void *area5_io16_base; /* Area 5 16bit I/O Base address */ -extern void *area6_io16_base; /* Area 6 16bit I/O Base address */ /* * The 7751R HS7751RVoIP uses the built-in PCI controller (PCIC) @@ -33,25 +28,8 @@ * like the other Solution Engine boards. */ -#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) -#define PCI_IO_AREA SH7751_PCI_IO_BASE -#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE - -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) - -#if defined(CONFIG_HS7751RVOIP_CODEC) #define CODEC_IO_BASE 0x1000 -#endif - -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} +#define CODEC_IOMAP(a) ((unsigned long)area6_io8_base + ((a) - CODEC_IO_BASE)) static inline unsigned long port2adr(unsigned int port) { @@ -59,9 +37,10 @@ if (port == 0x3f6) return ((unsigned long)area5_io16_base + 0x0c); else - return ((unsigned long)area5_io16_base + 0x800 + ((port-0x1f0) << 1)); + return ((unsigned long)area5_io16_base + 0x800 + + ((port-0x1f0) << 1)); else - maybebadio(port2adr, (unsigned long)port); + maybebadio((unsigned long)port); return port; } @@ -78,25 +57,10 @@ } #if defined(CONFIG_HS7751RVOIP_CODEC) -static inline int -codec_port(unsigned long port) -{ - if (CODEC_IO_BASE <= port && port < (CODEC_IO_BASE+0x20)) - return 1; - else - return 0; -} -#endif - -/* In case someone configures the kernel w/o PCI support: in that */ -/* scenario, don't ever bother to check for PCI-window addresses */ - -/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ -#if defined(CONFIG_PCI) -#define CHECK_SH7751_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) +#define codec_port(port) \ + ((CODEC_IO_BASE <= (port)) && ((port) < (CODEC_IO_BASE + 0x20))) #else -#define CHECK_SH7751_PCIIO(port) (0) +#define codec_port(port) (0) #endif /* @@ -109,15 +73,13 @@ unsigned char hs7751rvoip_inb(unsigned long port) { if (PXSEG(port)) - return *(volatile unsigned char *)port; -#if defined(CONFIG_HS7751RVOIP_CODEC) + return ctrl_inb(port); else if (codec_port(port)) - return *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)); -#endif - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return *(volatile unsigned char *)PCI_IOMAP(port); + return ctrl_inb(CODEC_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return ctrl_inb(pci_ioaddr(port)); else - return (*(volatile unsigned short *)port2adr(port) & 0xff); + return ctrl_inw(port2adr(port)) & 0xff; } unsigned char hs7751rvoip_inb_p(unsigned long port) @@ -125,38 +87,36 @@ unsigned char v; if (PXSEG(port)) - v = *(volatile unsigned char *)port; -#if defined(CONFIG_HS7751RVOIP_CODEC) + v = ctrl_inb(port); else if (codec_port(port)) - v = *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)); -#endif - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - v = *(volatile unsigned char *)PCI_IOMAP(port); + v = ctrl_inb(CODEC_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + v = ctrl_inb(pci_ioaddr(port)); else - v = (*(volatile unsigned short *)port2adr(port) & 0xff); - delay(); + v = ctrl_inw(port2adr(port)) & 0xff; + ctrl_delay(); return v; } unsigned short hs7751rvoip_inw(unsigned long port) { if (PXSEG(port)) - return *(volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return *(volatile unsigned short *)PCI_IOMAP(port); + return ctrl_inw(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return ctrl_inw(pci_ioaddr(port)); else - maybebadio(inw, port); + maybebadio(port); return 0; } unsigned int hs7751rvoip_inl(unsigned long port) { if (PXSEG(port)) - return *(volatile unsigned long *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return *(volatile unsigned long *)PCI_IOMAP(port); + return ctrl_inl(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return ctrl_inl(pci_ioaddr(port)); else - maybebadio(inl, port); + maybebadio(port); return 0; } @@ -164,146 +124,160 @@ { if (PXSEG(port)) - *(volatile unsigned char *)port = value; -#if defined(CONFIG_HS7751RVOIP_CODEC) + ctrl_outb(value, port); else if (codec_port(port)) - *(volatile unsigned cjar *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value; -#endif - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(unsigned char *)PCI_IOMAP(port) = value; + ctrl_outb(value, CODEC_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outb(value, pci_ioaddr(port)); else - *(volatile unsigned short *)port2adr(port) = value; + ctrl_outb(value, port2adr(port)); } void hs7751rvoip_outb_p(unsigned char value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned char *)port = value; -#if defined(CONFIG_HS7751RVOIP_CODEC) + ctrl_outb(value, port); else if (codec_port(port)) - *(volatile unsigned cjar *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value; -#endif - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(unsigned char *)PCI_IOMAP(port) = value; + ctrl_outb(value, CODEC_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outb(value, pci_ioaddr(port)); else - *(volatile unsigned short *)port2adr(port) = value; - delay(); + ctrl_outw(value, port2adr(port)); + + ctrl_delay(); } void hs7751rvoip_outw(unsigned short value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned short *)port = value; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(unsigned short *)PCI_IOMAP(port) = value; + ctrl_outw(value, port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outw(value, pci_ioaddr(port)); else - maybebadio(outw, port); + maybebadio(port); } void hs7751rvoip_outl(unsigned int value, unsigned long port) { if (PXSEG(port)) - *(volatile unsigned long *)port = value; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *((unsigned long *)PCI_IOMAP(port)) = value; + ctrl_outl(value, port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outl(value, pci_ioaddr(port)); else - maybebadio(outl, port); + maybebadio(port); } void hs7751rvoip_insb(unsigned long port, void *addr, unsigned long count) { + u8 *buf = addr; + if (PXSEG(port)) - while (count--) *((unsigned char *) addr)++ = *(volatile unsigned char *)port; -#if defined(CONFIG_HS7751RVOIP_CODEC) + while (count--) + *buf++ = ctrl_inb(port); else if (codec_port(port)) - while (count--) *((unsigned char *) addr)++ = *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)); -#endif - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile __u8 *bp = (__u8 *)PCI_IOMAP(port); + while (count--) + *buf++ = ctrl_inb(CODEC_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); - while (count--) *((volatile unsigned char *) addr)++ = *bp; + while (count--) + *buf++ = *bp; } else { - volatile __u16 *p = (volatile unsigned short *)port2adr(port); + volatile u16 *p = (volatile u16 *)port2adr(port); - while (count--) *((unsigned char *) addr)++ = *p & 0xff; + while (count--) + *buf++ = *p & 0xff; } } void hs7751rvoip_insw(unsigned long port, void *addr, unsigned long count) { - volatile __u16 *p; + volatile u16 *p; + u16 *buf = addr; if (PXSEG(port)) - p = (volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - p = (volatile unsigned short *)PCI_IOMAP(port); + p = (volatile u16 *)port; + else if (is_pci_ioaddr(port) || shifted_port(port)) + p = (volatile u16 *)pci_ioaddr(port); else - p = (volatile unsigned short *)port2adr(port); - while (count--) *((__u16 *) addr)++ = *p; + p = (volatile u16 *)port2adr(port); + while (count--) + *buf++ = *p; } void hs7751rvoip_insl(unsigned long port, void *addr, unsigned long count) { - if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile __u32 *p = (__u32 *)PCI_IOMAP(port); - while (count--) *((__u32 *) addr)++ = *p; + if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u32 *p = (volatile u32 *)pci_ioaddr(port); + u32 *buf = addr; + + while (count--) + *buf++ = *p; } else - maybebadio(insl, port); + maybebadio(port); } void hs7751rvoip_outsb(unsigned long port, const void *addr, unsigned long count) { + const u8 *buf = addr; + if (PXSEG(port)) - while (count--) *(volatile unsigned char *)port = *((unsigned char *) addr)++; -#if defined(CONFIG_HS7751RVOIP_CODEC) + while (count--) + ctrl_outb(*buf++, port); else if (codec_port(port)) - while (count--) *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = *((unsigned char *) addr)++; -#endif - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile __u8 *bp = (__u8 *)PCI_IOMAP(port); + while (count--) + ctrl_outb(*buf++, CODEC_IOMAP(port)); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); - while (count--) *bp = *((volatile unsigned char *) addr)++; + while (count--) + *bp = *buf++; } else { - volatile __u16 *p = (volatile unsigned short *)port2adr(port); + volatile u16 *p = (volatile u16 *)port2adr(port); - while (count--) *p = *((unsigned char *) addr)++; + while (count--) + *p = *buf++; } } void hs7751rvoip_outsw(unsigned long port, const void *addr, unsigned long count) { - volatile __u16 *p; + volatile u16 *p; + const u16 *buf = addr; if (PXSEG(port)) - p = (volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - p = (volatile unsigned short *)PCI_IOMAP(port); + p = (volatile u16 *)port; + else if (is_pci_ioaddr(port) || shifted_port(port)) + p = (volatile u16 *)pci_ioaddr(port); else - p = (volatile unsigned short *)port2adr(port); - while (count--) *p = *((__u16 *) addr)++; + p = (volatile u16 *)port2adr(port); + + while (count--) + *p = *buf++; } void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count) { - if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile __u32 *p = (__u32 *)PCI_IOMAP(port); + const u32 *buf = addr; - while (count--) *p = *((__u32 *) addr)++; + if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u32 *p = (volatile u32 *)pci_ioaddr(port); + + while (count--) + *p = *buf++; } else - maybebadio(outsl, port); + maybebadio(port); } -void *hs7751rvoip_ioremap(unsigned long offset, unsigned long size) +void __iomem *hs7751rvoip_ioport_map(unsigned long port, unsigned int size) { - if (offset >= 0xfd000000) - return (void *)offset; - else - return (void *)P2SEGADDR(offset); -} -EXPORT_SYMBOL(hs7751rvoip_ioremap); + if (PXSEG(port)) + return (void __iomem *)port; + else if (unlikely(codec_port(port) && (size == 1))) + return (void __iomem *)CODEC_IOMAP(port); + else if (is_pci_ioaddr(port)) + return (void __iomem *)pci_ioaddr(port); -unsigned long hs7751rvoip_isa_port2addr(unsigned long offset) -{ - return port2adr(offset); + return (void __iomem *)port2adr(port); }
diff --git a/arch/sh/boards/renesas/hs7751rvoip/irq.c b/arch/sh/boards/renesas/hs7751rvoip/irq.c index 705b7dd..c617b18 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/irq.c +++ b/arch/sh/boards/renesas/hs7751rvoip/irq.c
@@ -35,30 +35,24 @@ static void disable_hs7751rvoip_irq(unsigned int irq) { - unsigned long flags; unsigned short val; unsigned short mask = 0xffff ^ (0x0001 << mask_pos[irq]); /* Set the priority in IPR to 0 */ - local_irq_save(flags); val = ctrl_inw(IRLCNTR3); val &= mask; ctrl_outw(val, IRLCNTR3); - local_irq_restore(flags); } static void enable_hs7751rvoip_irq(unsigned int irq) { - unsigned long flags; unsigned short val; unsigned short value = (0x0001 << mask_pos[irq]); /* Set priority in IPR back to original value */ - local_irq_save(flags); val = ctrl_inw(IRLCNTR3); val |= value; ctrl_outw(val, IRLCNTR3); - local_irq_restore(flags); } static void ack_hs7751rvoip_irq(unsigned int irq)
diff --git a/arch/sh/boards/renesas/hs7751rvoip/led.c b/arch/sh/boards/renesas/hs7751rvoip/led.c deleted file mode 100644 index b6608ff..0000000 --- a/arch/sh/boards/renesas/hs7751rvoip/led.c +++ /dev/null
@@ -1,26 +0,0 @@ -/* - * linux/arch/sh/kernel/setup_hs7751rvoip.c - * - * Copyright (C) 2000 Kazumoto Kojima - * - * Renesas Technology Sales HS7751RVoIP Support. - * - * Modified for HS7751RVoIP by - * Atom Create Engineering Co., Ltd. 2002. - * Lineo uSolutions, Inc. 2003. - */ - -#include <asm/io.h> -#include <asm/hs7751rvoip/hs7751rvoip.h> - -extern unsigned int debug_counter; - -void debug_led_disp(void) -{ - unsigned short value; - - value = (unsigned char)debug_counter++; - ctrl_outb((0xf0|value), PA_OUTPORTR); - if (value == 0x0f) - debug_counter = 0; -}
diff --git a/arch/sh/boards/renesas/hs7751rvoip/mach.c b/arch/sh/boards/renesas/hs7751rvoip/mach.c deleted file mode 100644 index caf967f..0000000 --- a/arch/sh/boards/renesas/hs7751rvoip/mach.c +++ /dev/null
@@ -1,54 +0,0 @@ -/* - * linux/arch/sh/kernel/mach_hs7751rvoip.c - * - * Minor tweak of mach_se.c file to reference hs7751rvoip-specific items. - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Machine vector for the Renesas Technology sales HS7751RVoIP - */ - -#include <linux/init.h> - -#include <asm/machvec.h> -#include <asm/rtc.h> -#include <asm/irq.h> -#include <asm/hs7751rvoip/io.h> - -extern void init_hs7751rvoip_IRQ(void); -extern void *hs7751rvoip_ioremap(unsigned long, unsigned long); - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_hs7751rvoip __initmv = { - .mv_nr_irqs = 72, - - .mv_inb = hs7751rvoip_inb, - .mv_inw = hs7751rvoip_inw, - .mv_inl = hs7751rvoip_inl, - .mv_outb = hs7751rvoip_outb, - .mv_outw = hs7751rvoip_outw, - .mv_outl = hs7751rvoip_outl, - - .mv_inb_p = hs7751rvoip_inb_p, - .mv_inw_p = hs7751rvoip_inw, - .mv_inl_p = hs7751rvoip_inl, - .mv_outb_p = hs7751rvoip_outb_p, - .mv_outw_p = hs7751rvoip_outw, - .mv_outl_p = hs7751rvoip_outl, - - .mv_insb = hs7751rvoip_insb, - .mv_insw = hs7751rvoip_insw, - .mv_insl = hs7751rvoip_insl, - .mv_outsb = hs7751rvoip_outsb, - .mv_outsw = hs7751rvoip_outsw, - .mv_outsl = hs7751rvoip_outsl, - - .mv_ioremap = hs7751rvoip_ioremap, - .mv_isa_port2addr = hs7751rvoip_isa_port2addr, - .mv_init_irq = init_hs7751rvoip_IRQ, -}; -ALIAS_MV(hs7751rvoip)
diff --git a/arch/sh/boards/renesas/hs7751rvoip/setup.c b/arch/sh/boards/renesas/hs7751rvoip/setup.c index 29fb5ff..0414c15 100644 --- a/arch/sh/boards/renesas/hs7751rvoip/setup.c +++ b/arch/sh/boards/renesas/hs7751rvoip/setup.c
@@ -1,44 +1,38 @@ /* - * linux/arch/sh/kernel/setup_hs7751rvoip.c + * Renesas Technology Sales HS7751RVoIP Support. * * Copyright (C) 2000 Kazumoto Kojima * - * Renesas Technology Sales HS7751RVoIP Support. - * * Modified for HS7751RVoIP by * Atom Create Engineering Co., Ltd. 2002. * Lineo uSolutions, Inc. 2003. */ - #include <linux/init.h> #include <linux/irq.h> - -#include <linux/hdreg.h> -#include <linux/ide.h> -#include <asm/io.h> -#include <asm/hs7751rvoip/hs7751rvoip.h> - #include <linux/mm.h> #include <linux/vmalloc.h> +#include <linux/hdreg.h> +#include <linux/ide.h> +#include <linux/pm.h> +#include <asm/io.h> +#include <asm/hs7751rvoip/hs7751rvoip.h> +#include <asm/machvec.h> +#include <asm/rtc.h> +#include <asm/irq.h> -/* defined in mm/ioremap.c */ -extern void * p3_ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags); - -unsigned int debug_counter; - -const char *get_system_type(void) +static void __init hs7751rvoip_init_irq(void) { - return "HS7751RVoIP"; +#if defined(CONFIG_HS7751RVOIP_CODEC) + make_ipr_irq(DMTE0_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY); + make_ipr_irq(DMTE1_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY); +#endif + + init_hs7751rvoip_IRQ(); } -/* - * Initialize the board - */ -void __init platform_setup(void) +static void hs7751rvoip_power_off(void) { - printk(KERN_INFO "Renesas Technology Sales HS7751RVoIP-2 support.\n"); - ctrl_outb(0xf0, PA_OUTPORTR); - debug_counter = 0; + ctrl_outw(ctrl_inw(PA_OUTPORTR) & 0xffdf, PA_OUTPORTR); } void *area5_io8_base; @@ -46,16 +40,15 @@ void *area5_io16_base; void *area6_io16_base; -int __init cf_init(void) +static int __init hs7751rvoip_cf_init(void) { pgprot_t prot; - unsigned long paddrbase, psize; + unsigned long paddrbase; /* open I/O area window */ paddrbase = virt_to_phys((void *)(PA_AREA5_IO+0x00000800)); - psize = PAGE_SIZE; prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_COM16); - area5_io16_base = p3_ioremap(paddrbase, psize, prot.pgprot); + area5_io16_base = p3_ioremap(paddrbase, PAGE_SIZE, prot.pgprot); if (!area5_io16_base) { printk("allocate_cf_area : can't open CF I/O window!\n"); return -ENOMEM; @@ -64,19 +57,18 @@ /* XXX : do we need attribute and common-memory area also? */ paddrbase = virt_to_phys((void *)PA_AREA6_IO); - psize = PAGE_SIZE; #if defined(CONFIG_HS7751RVOIP_CODEC) prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_COM8); #else prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO8); #endif - area6_io8_base = p3_ioremap(paddrbase, psize, prot.pgprot); + area6_io8_base = p3_ioremap(paddrbase, PAGE_SIZE, prot.pgprot); if (!area6_io8_base) { printk("allocate_cf_area : can't open CODEC I/O 8bit window!\n"); return -ENOMEM; } prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO16); - area6_io16_base = p3_ioremap(paddrbase, psize, prot.pgprot); + area6_io16_base = p3_ioremap(paddrbase, PAGE_SIZE, prot.pgprot); if (!area6_io16_base) { printk("allocate_cf_area : can't open CODEC I/O 16bit window!\n"); return -ENOMEM; @@ -85,4 +77,46 @@ return 0; } -__initcall (cf_init); +/* + * Initialize the board + */ +static void __init hs7751rvoip_setup(char **cmdline_p) +{ + device_initcall(hs7751rvoip_cf_init); + + ctrl_outb(0xf0, PA_OUTPORTR); + pm_power_off = hs7751rvoip_power_off; + + printk(KERN_INFO "Renesas Technology Sales HS7751RVoIP-2 support.\n"); +} + +struct sh_machine_vector mv_hs7751rvoip __initmv = { + .mv_name = "HS7751RVoIP", + .mv_setup = hs7751rvoip_setup, + .mv_nr_irqs = 72, + + .mv_inb = hs7751rvoip_inb, + .mv_inw = hs7751rvoip_inw, + .mv_inl = hs7751rvoip_inl, + .mv_outb = hs7751rvoip_outb, + .mv_outw = hs7751rvoip_outw, + .mv_outl = hs7751rvoip_outl, + + .mv_inb_p = hs7751rvoip_inb_p, + .mv_inw_p = hs7751rvoip_inw, + .mv_inl_p = hs7751rvoip_inl, + .mv_outb_p = hs7751rvoip_outb_p, + .mv_outw_p = hs7751rvoip_outw, + .mv_outl_p = hs7751rvoip_outl, + + .mv_insb = hs7751rvoip_insb, + .mv_insw = hs7751rvoip_insw, + .mv_insl = hs7751rvoip_insl, + .mv_outsb = hs7751rvoip_outsb, + .mv_outsw = hs7751rvoip_outsw, + .mv_outsl = hs7751rvoip_outsl, + + .mv_init_irq = hs7751rvoip_init_irq, + .mv_ioport_map = hs7751rvoip_ioport_map, +}; +ALIAS_MV(hs7751rvoip)
diff --git a/arch/sh/boards/renesas/r7780rp/Kconfig b/arch/sh/boards/renesas/r7780rp/Kconfig new file mode 100644 index 0000000..c26d981 --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/Kconfig
@@ -0,0 +1,14 @@ +if SH_R7780RP + +menu "R7780RP options" + +config SH_R7780MP + bool "R7780MP board support" + default y + help + Selecting this option will enable support for the mass-production + version of the R7780RP. If in doubt, say Y. + +endmenu + +endif
diff --git a/arch/sh/boards/renesas/r7780rp/Makefile b/arch/sh/boards/renesas/r7780rp/Makefile new file mode 100644 index 0000000..f1776d0 --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/Makefile
@@ -0,0 +1,6 @@ +# +# Makefile for the R7780RP-1 specific parts of the kernel +# + +obj-y := setup.o io.o irq.o +obj-$(CONFIG_HEARTBEAT) += led.o
diff --git a/arch/sh/boards/renesas/r7780rp/io.c b/arch/sh/boards/renesas/r7780rp/io.c new file mode 100644 index 0000000..db92d6e --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/io.c
@@ -0,0 +1,301 @@ +/* + * Copyright (C) 2001 Ian da Silva, Jeremy Siegel + * Based largely on io_se.c. + * + * I/O routine for Renesas Solutions Highlander R7780RP-1 + * + * Initial version only to support LAN access; some + * placeholder code from io_r7780rp.c left in with the + * expectation of later SuperIO and PCMCIA access. + */ +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <asm/r7780rp/r7780rp.h> +#include <asm/addrspace.h> +#include <asm/io.h> + +static inline unsigned long port2adr(unsigned int port) +{ + if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) + if (port == 0x3f6) + return (PA_AREA5_IO + 0x80c); + else + return (PA_AREA5_IO + 0x1000 + ((port-0x1f0) << 1)); + else + maybebadio((unsigned long)port); + + return port; +} + +static inline unsigned long port88796l(unsigned int port, int flag) +{ + unsigned long addr; + + if (flag) + addr = PA_AX88796L + ((port - AX88796L_IO_BASE) << 1); + else + addr = PA_AX88796L + ((port - AX88796L_IO_BASE) << 1) + 0x1000; + + return addr; +} + +/* The 7780 R7780RP-1 seems to have everything hooked */ +/* up pretty normally (nothing on high-bytes only...) so this */ +/* shouldn't be needed */ +static inline int shifted_port(unsigned long port) +{ + /* For IDE registers, value is not shifted */ + if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) + return 0; + else + return 1; +} + +#if defined(CONFIG_NE2000) || defined(CONFIG_NE2000_MODULE) +#define CHECK_AX88796L_PORT(port) \ + ((port >= AX88796L_IO_BASE) && (port < (AX88796L_IO_BASE+0x20))) +#else +#define CHECK_AX88796L_PORT(port) (0) +#endif + +/* + * General outline: remap really low stuff [eventually] to SuperIO, + * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) + * is mapped through the PCI IO window. Stuff with high bits (PXSEG) + * should be way beyond the window, and is used w/o translation for + * compatibility. + */ +u8 r7780rp_inb(unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + return ctrl_inw(port88796l(port, 0)) & 0xff; + else if (PXSEG(port)) + return ctrl_inb(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return ctrl_inb(pci_ioaddr(port)); + + return ctrl_inw(port2adr(port)) & 0xff; +} + +u8 r7780rp_inb_p(unsigned long port) +{ + u8 v; + + if (CHECK_AX88796L_PORT(port)) + v = ctrl_inw(port88796l(port, 0)) & 0xff; + else if (PXSEG(port)) + v = ctrl_inb(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + v = ctrl_inb(pci_ioaddr(port)); + else + v = ctrl_inw(port2adr(port)) & 0xff; + + ctrl_delay(); + + return v; +} + +u16 r7780rp_inw(unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + maybebadio(port); + else if (PXSEG(port)) + return ctrl_inw(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return ctrl_inw(pci_ioaddr(port)); + else + maybebadio(port); + + return 0; +} + +u32 r7780rp_inl(unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + maybebadio(port); + else if (PXSEG(port)) + return ctrl_inl(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return ctrl_inl(pci_ioaddr(port)); + else + maybebadio(port); + + return 0; +} + +void r7780rp_outb(u8 value, unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + ctrl_outw(value, port88796l(port, 0)); + else if (PXSEG(port)) + ctrl_outb(value, port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outb(value, pci_ioaddr(port)); + else + ctrl_outw(value, port2adr(port)); +} + +void r7780rp_outb_p(u8 value, unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + ctrl_outw(value, port88796l(port, 0)); + else if (PXSEG(port)) + ctrl_outb(value, port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outb(value, pci_ioaddr(port)); + else + ctrl_outw(value, port2adr(port)); + + ctrl_delay(); +} + +void r7780rp_outw(u16 value, unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + maybebadio(port); + else if (PXSEG(port)) + ctrl_outw(value, port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outw(value, pci_ioaddr(port)); + else + maybebadio(port); +} + +void r7780rp_outl(u32 value, unsigned long port) +{ + if (CHECK_AX88796L_PORT(port)) + maybebadio(port); + else if (PXSEG(port)) + ctrl_outl(value, port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + ctrl_outl(value, pci_ioaddr(port)); + else + maybebadio(port); +} + +void r7780rp_insb(unsigned long port, void *dst, unsigned long count) +{ + volatile u16 *p; + u8 *buf = dst; + + if (CHECK_AX88796L_PORT(port)) { + p = (volatile u16 *)port88796l(port, 0); + while (count--) + *buf++ = *p & 0xff; + } else if (PXSEG(port)) { + while (count--) + *buf++ = *(volatile u8 *)port; + } else if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); + + while (count--) + *buf++ = *bp; + } else { + p = (volatile u16 *)port2adr(port); + while (count--) + *buf++ = *p & 0xff; + } +} + +void r7780rp_insw(unsigned long port, void *dst, unsigned long count) +{ + volatile u16 *p; + u16 *buf = dst; + + if (CHECK_AX88796L_PORT(port)) + p = (volatile u16 *)port88796l(port, 1); + else if (PXSEG(port)) + p = (volatile u16 *)port; + else if (is_pci_ioaddr(port) || shifted_port(port)) + p = (volatile u16 *)pci_ioaddr(port); + else + p = (volatile u16 *)port2adr(port); + + while (count--) + *buf++ = *p; +} + +void r7780rp_insl(unsigned long port, void *dst, unsigned long count) +{ + u32 *buf = dst; + + if (CHECK_AX88796L_PORT(port)) + maybebadio(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u32 *p = (volatile u32 *)pci_ioaddr(port); + + while (count--) + *buf++ = *p; + } else + maybebadio(port); +} + +void r7780rp_outsb(unsigned long port, const void *src, unsigned long count) +{ + volatile u16 *p; + const u8 *buf = src; + + if (CHECK_AX88796L_PORT(port)) { + p = (volatile u16 *)port88796l(port, 0); + while (count--) + *p = *buf++; + } else if (PXSEG(port)) + while (count--) + ctrl_outb(*buf++, port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u8 *bp = (volatile u8 *)pci_ioaddr(port); + + while (count--) + *bp = *buf++; + } else { + p = (volatile u16 *)port2adr(port); + while (count--) + *p = *buf++; + } +} + +void r7780rp_outsw(unsigned long port, const void *src, unsigned long count) +{ + volatile u16 *p; + const u16 *buf = src; + + if (CHECK_AX88796L_PORT(port)) + p = (volatile u16 *)port88796l(port, 1); + else if (PXSEG(port)) + p = (volatile u16 *)port; + else if (is_pci_ioaddr(port) || shifted_port(port)) + p = (volatile u16 *)pci_ioaddr(port); + else + p = (volatile u16 *)port2adr(port); + + while (count--) + *p = *buf++; +} + +void r7780rp_outsl(unsigned long port, const void *src, unsigned long count) +{ + const u32 *buf = src; + + if (CHECK_AX88796L_PORT(port)) + maybebadio(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + volatile u32 *p = (volatile u32 *)pci_ioaddr(port); + + while (count--) + *p = *buf++; + } else + maybebadio(port); +} + +void __iomem *r7780rp_ioport_map(unsigned long port, unsigned int size) +{ + if (CHECK_AX88796L_PORT(port)) + return (void __iomem *)port88796l(port, size > 1); + else if (PXSEG(port)) + return (void __iomem *)port; + else if (is_pci_ioaddr(port) || shifted_port(port)) + return (void __iomem *)pci_ioaddr(port); + + return (void __iomem *)port2adr(port); +}
diff --git a/arch/sh/boards/renesas/r7780rp/irq.c b/arch/sh/boards/renesas/r7780rp/irq.c new file mode 100644 index 0000000..61d5e5d --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/irq.c
@@ -0,0 +1,117 @@ +/* + * linux/arch/sh/boards/renesas/r7780rp/irq.c + * + * Copyright (C) 2000 Kazumoto Kojima + * + * Renesas Solutions Highlander R7780RP-1 Support. + * + * Modified for R7780RP-1 by + * Atom Create Engineering Co., Ltd. 2002. + */ + +#include <linux/config.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/r7780rp/r7780rp.h> + +#ifdef CONFIG_SH_R7780MP +static int mask_pos[] = {12, 11, 9, 14, 15, 8, 13, 6, 5, 4, 3, 2, 0, 0, 1, 0}; +#else +static int mask_pos[] = {15, 14, 13, 12, 11, 10, 9, 8, 7, 5, 6, 4, 0, 1, 2, 0}; +#endif + +static void enable_r7780rp_irq(unsigned int irq); +static void disable_r7780rp_irq(unsigned int irq); + +/* shutdown is same as "disable" */ +#define shutdown_r7780rp_irq disable_r7780rp_irq + +static void ack_r7780rp_irq(unsigned int irq); +static void end_r7780rp_irq(unsigned int irq); + +static unsigned int startup_r7780rp_irq(unsigned int irq) +{ + enable_r7780rp_irq(irq); + return 0; /* never anything pending */ +} + +static void disable_r7780rp_irq(unsigned int irq) +{ + unsigned short val; + unsigned short mask = 0xffff ^ (0x0001 << mask_pos[irq]); + + /* Set the priority in IPR to 0 */ + val = ctrl_inw(IRLCNTR1); + val &= mask; + ctrl_outw(val, IRLCNTR1); +} + +static void enable_r7780rp_irq(unsigned int irq) +{ + unsigned short val; + unsigned short value = (0x0001 << mask_pos[irq]); + + /* Set priority in IPR back to original value */ + val = ctrl_inw(IRLCNTR1); + val |= value; + ctrl_outw(val, IRLCNTR1); +} + +static void ack_r7780rp_irq(unsigned int irq) +{ + disable_r7780rp_irq(irq); +} + +static void end_r7780rp_irq(unsigned int irq) +{ + if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) + enable_r7780rp_irq(irq); +} + +static struct hw_interrupt_type r7780rp_irq_type = { + .typename = "R7780RP-IRQ", + .startup = startup_r7780rp_irq, + .shutdown = shutdown_r7780rp_irq, + .enable = enable_r7780rp_irq, + .disable = disable_r7780rp_irq, + .ack = ack_r7780rp_irq, + .end = end_r7780rp_irq, +}; + +static void make_r7780rp_irq(unsigned int irq) +{ + disable_irq_nosync(irq); + irq_desc[irq].handler = &r7780rp_irq_type; + disable_r7780rp_irq(irq); +} + +/* + * Initialize IRQ setting + */ +void __init init_r7780rp_IRQ(void) +{ + int i; + + /* IRL0=PCI Slot #A + * IRL1=PCI Slot #B + * IRL2=PCI Slot #C + * IRL3=PCI Slot #D + * IRL4=CF Card + * IRL5=CF Card Insert + * IRL6=M66596 + * IRL7=SD Card + * IRL8=Touch Panel + * IRL9=SCI + * IRL10=Serial + * IRL11=Extention #A + * IRL11=Extention #B + * IRL12=Debug LAN + * IRL13=Push Switch + * IRL14=ZiggBee IO + */ + + for (i=0; i<15; i++) + make_r7780rp_irq(i); +}
diff --git a/arch/sh/boards/renesas/r7780rp/led.c b/arch/sh/boards/renesas/r7780rp/led.c new file mode 100644 index 0000000..9f02766 --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/led.c
@@ -0,0 +1,45 @@ +/* + * Copyright (C) Atom Create Engineering Co., Ltd. + * + * May be copied or modified under the terms of GNU General Public + * License. See linux/COPYING for more information. + * + * This file contains Renesas Solutions HIGHLANDER R7780RP-1 specific LED code. + */ + +#include <linux/config.h> +#include <linux/sched.h> +#include <asm/io.h> +#include <asm/r7780rp/r7780rp.h> + +/* Cycle the LED's in the clasic Knightriger/Sun pattern */ +void heartbeat_r7780rp(void) +{ + static unsigned int cnt = 0, period = 0; + volatile unsigned short *p = (volatile unsigned short *)PA_OBLED; + static unsigned bit = 0, up = 1; + unsigned bit_pos[] = {2, 1, 0, 3, 6, 5, 4, 7}; + + cnt += 1; + if (cnt < period) + return; + + cnt = 0; + + /* Go through the points (roughly!): + * f(0)=10, f(1)=16, f(2)=20, f(5)=35, f(int)->110 + */ + period = 110 - ((300 << FSHIFT)/((avenrun[0]/5) + (3<<FSHIFT))); + + *p = 1 << bit_pos[bit]; + if (up) + if (bit == 7) { + bit--; + up = 0; + } else + bit++; + else if (bit == 0) + up = 1; + else + bit--; +}
diff --git a/arch/sh/boards/renesas/r7780rp/setup.c b/arch/sh/boards/renesas/r7780rp/setup.c new file mode 100644 index 0000000..b941aa0 --- /dev/null +++ b/arch/sh/boards/renesas/r7780rp/setup.c
@@ -0,0 +1,163 @@ +/* + * arch/sh/boards/renesas/r7780rp/setup.c + * + * Copyright (C) 2002 Atom Create Engineering Co., Ltd. + * Copyright (C) 2005, 2006 Paul Mundt + * + * Renesas Solutions Highlander R7780RP-1 Support. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <linux/platform_device.h> +#include <asm/machvec.h> +#include <asm/r7780rp/r7780rp.h> +#include <asm/clock.h> +#include <asm/io.h> + +extern void heartbeat_r7780rp(void); +extern void init_r7780rp_IRQ(void); + +static struct resource m66596_usb_host_resources[] = { + [0] = { + .start = 0xa4800000, + .end = 0xa4ffffff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = 6, /* irq number */ + .end = 6, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device m66596_usb_host_device = { + .name = "m66596-hcd", + .id = 0, + .dev = { + .dma_mask = NULL, /* don't use dma */ + .coherent_dma_mask = 0xffffffff, + }, + .num_resources = ARRAY_SIZE(m66596_usb_host_resources), + .resource = m66596_usb_host_resources, +}; + +static struct platform_device *r7780rp_devices[] __initdata = { + &m66596_usb_host_device, +}; + +static int __init r7780rp_devices_setup(void) +{ + return platform_add_devices(r7780rp_devices, + ARRAY_SIZE(r7780rp_devices)); +} + +/* + * Platform specific clocks + */ +static void ivdr_clk_enable(struct clk *clk) +{ + ctrl_outw(ctrl_inw(PA_IVDRCTL) | (1 << 8), PA_IVDRCTL); +} + +static void ivdr_clk_disable(struct clk *clk) +{ + ctrl_outw(ctrl_inw(PA_IVDRCTL) & ~(1 << 8), PA_IVDRCTL); +} + +static struct clk_ops ivdr_clk_ops = { + .enable = ivdr_clk_enable, + .disable = ivdr_clk_disable, +}; + +static struct clk ivdr_clk = { + .name = "ivdr_clk", + .ops = &ivdr_clk_ops, +}; + +static struct clk *r7780rp_clocks[] = { + &ivdr_clk, +}; + +static void r7780rp_power_off(void) +{ +#ifdef CONFIG_SH_R7780MP + ctrl_outw(0x0001, PA_POFF); +#endif +} + +/* + * Initialize the board + */ +static void __init r7780rp_setup(char **cmdline_p) +{ + u16 ver = ctrl_inw(PA_VERREG); + int i; + + device_initcall(r7780rp_devices_setup); + + printk(KERN_INFO "Renesas Solutions Highlander R7780RP-1 support.\n"); + + printk(KERN_INFO "Board version: %d (revision %d), " + "FPGA version: %d (revision %d)\n", + (ver >> 12) & 0xf, (ver >> 8) & 0xf, + (ver >> 4) & 0xf, ver & 0xf); + + /* + * Enable the important clocks right away.. + */ + for (i = 0; i < ARRAY_SIZE(r7780rp_clocks); i++) { + struct clk *clk = r7780rp_clocks[i]; + + clk_register(clk); + clk_enable(clk); + } + + ctrl_outw(0x0000, PA_OBLED); /* Clear LED. */ +#ifndef CONFIG_SH_R7780MP + ctrl_outw(0x0001, PA_SDPOW); /* SD Power ON */ +#endif + ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x0100, PA_IVDRCTL); /* Si13112 */ + + pm_power_off = r7780rp_power_off; +} + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_r7780rp __initmv = { + .mv_name = "Highlander R7780RP-1", + .mv_setup = r7780rp_setup, + + .mv_nr_irqs = 109, + + .mv_inb = r7780rp_inb, + .mv_inw = r7780rp_inw, + .mv_inl = r7780rp_inl, + .mv_outb = r7780rp_outb, + .mv_outw = r7780rp_outw, + .mv_outl = r7780rp_outl, + + .mv_inb_p = r7780rp_inb_p, + .mv_inw_p = r7780rp_inw, + .mv_inl_p = r7780rp_inl, + .mv_outb_p = r7780rp_outb_p, + .mv_outw_p = r7780rp_outw, + .mv_outl_p = r7780rp_outl, + + .mv_insb = r7780rp_insb, + .mv_insw = r7780rp_insw, + .mv_insl = r7780rp_insl, + .mv_outsb = r7780rp_outsb, + .mv_outsw = r7780rp_outsw, + .mv_outsl = r7780rp_outsl, + + .mv_ioport_map = r7780rp_ioport_map, + .mv_init_irq = init_r7780rp_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_r7780rp, +#endif +}; +ALIAS_MV(r7780rp)
diff --git a/arch/sh/boards/renesas/rts7751r2d/Kconfig b/arch/sh/boards/renesas/rts7751r2d/Kconfig new file mode 100644 index 0000000..7780d1fb --- /dev/null +++ b/arch/sh/boards/renesas/rts7751r2d/Kconfig
@@ -0,0 +1,12 @@ +if SH_RTS7751R2D + +menu "RTS7751R2D options" + +config RTS7751R2D_REV11 + bool "RTS7751R2D Rev. 1.1 board support" + help + Selecting this option will support version rev. 1.1. +endmenu + +endif +
diff --git a/arch/sh/boards/renesas/rts7751r2d/Makefile b/arch/sh/boards/renesas/rts7751r2d/Makefile index daa5333..686fc9e 100644 --- a/arch/sh/boards/renesas/rts7751r2d/Makefile +++ b/arch/sh/boards/renesas/rts7751r2d/Makefile
@@ -1,10 +1,6 @@ # # Makefile for the RTS7751R2D specific parts of the kernel # -# Note! Dependencies are done automagically by 'make dep', which also -# removes any old dependencies. DON'T put your own dependencies here -# unless it's something special (ie not a .c file). -# -obj-y := mach.o setup.o io.o irq.o led.o - +obj-y := setup.o io.o irq.o +obj-$(CONFIG_HEARTBEAT) += led.o
diff --git a/arch/sh/boards/renesas/rts7751r2d/io.c b/arch/sh/boards/renesas/rts7751r2d/io.c index 123abbb..135aa0b 100644 --- a/arch/sh/boards/renesas/rts7751r2d/io.c +++ b/arch/sh/boards/renesas/rts7751r2d/io.c
@@ -1,6 +1,4 @@ /* - * linux/arch/sh/kernel/io_rts7751r2d.c - * * Copyright (C) 2001 Ian da Silva, Jeremy Siegel * Based largely on io_se.c. * @@ -10,16 +8,12 @@ * placeholder code from io_rts7751r2d.c left in with the * expectation of later SuperIO and PCMCIA access. */ - #include <linux/kernel.h> #include <linux/types.h> -#include <asm/io.h> -#include <asm/rts7751r2d/rts7751r2d.h> -#include <asm/addrspace.h> - -#include <linux/module.h> #include <linux/pci.h> -#include "../../../drivers/pci/pci-sh7751.h" +#include <asm/rts7751r2d/rts7751r2d.h> +#include <asm/io.h> +#include <asm/addrspace.h> /* * The 7751R RTS7751R2D uses the built-in PCI controller (PCIC) @@ -28,22 +22,6 @@ * like the other Solution Engine boards. */ -#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) -#define PCI_IO_AREA SH7751_PCI_IO_BASE -#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE - -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) - -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - static inline unsigned long port2adr(unsigned int port) { if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) @@ -52,7 +30,7 @@ else return (PA_AREA5_IO + 0x1000 + ((port-0x1f0) << 1)); else - maybebadio(port2adr, (unsigned long)port); + maybebadio((unsigned long)port); return port; } @@ -81,17 +59,6 @@ return 1; } -/* In case someone configures the kernel w/o PCI support: in that */ -/* scenario, don't ever bother to check for PCI-window addresses */ - -/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ -#if defined(CONFIG_PCI) -#define CHECK_SH7751_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) -#else -#define CHECK_SH7751_PCIIO(port) (0) -#endif - #if defined(CONFIG_NE2000) || defined(CONFIG_NE2000_MODULE) #define CHECK_AX88796L_PORT(port) \ ((port >= AX88796L_IO_BASE) && (port < (AX88796L_IO_BASE+0x20))) @@ -112,8 +79,8 @@ return (*(volatile unsigned short *)port88796l(port, 0)) & 0xff; else if (PXSEG(port)) return *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return *(volatile unsigned char *)pci_ioaddr(port); else return (*(volatile unsigned short *)port2adr(port) & 0xff); } @@ -126,11 +93,12 @@ v = (*(volatile unsigned short *)port88796l(port, 0)) & 0xff; else if (PXSEG(port)) v = *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - v = *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + v = *(volatile unsigned char *)pci_ioaddr(port); else v = (*(volatile unsigned short *)port2adr(port) & 0xff); - delay(); + + ctrl_delay(); return v; } @@ -138,13 +106,13 @@ unsigned short rts7751r2d_inw(unsigned long port) { if (CHECK_AX88796L_PORT(port)) - maybebadio(inw, port); + maybebadio(port); else if (PXSEG(port)) return *(volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return *(volatile unsigned short *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return *(volatile unsigned short *)pci_ioaddr(port); else - maybebadio(inw, port); + maybebadio(port); return 0; } @@ -152,13 +120,13 @@ unsigned int rts7751r2d_inl(unsigned long port) { if (CHECK_AX88796L_PORT(port)) - maybebadio(inl, port); + maybebadio(port); else if (PXSEG(port)) return *(volatile unsigned long *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - return *(volatile unsigned long *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + return *(volatile unsigned long *)pci_ioaddr(port); else - maybebadio(inl, port); + maybebadio(port); return 0; } @@ -169,8 +137,8 @@ *((volatile unsigned short *)port88796l(port, 0)) = value; else if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(volatile unsigned char *)PCI_IOMAP(port) = value; + else if (is_pci_ioaddr(port) || shifted_port(port)) + *(volatile unsigned char *)pci_ioaddr(port) = value; else *(volatile unsigned short *)port2adr(port) = value; } @@ -181,144 +149,153 @@ *((volatile unsigned short *)port88796l(port, 0)) = value; else if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(volatile unsigned char *)PCI_IOMAP(port) = value; + else if (is_pci_ioaddr(port) || shifted_port(port)) + *(volatile unsigned char *)pci_ioaddr(port) = value; else *(volatile unsigned short *)port2adr(port) = value; - delay(); + + ctrl_delay(); } void rts7751r2d_outw(unsigned short value, unsigned long port) { if (CHECK_AX88796L_PORT(port)) - maybebadio(outw, port); + maybebadio(port); else if (PXSEG(port)) *(volatile unsigned short *)port = value; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(volatile unsigned short *)PCI_IOMAP(port) = value; + else if (is_pci_ioaddr(port) || shifted_port(port)) + *(volatile unsigned short *)pci_ioaddr(port) = value; else - maybebadio(outw, port); + maybebadio(port); } void rts7751r2d_outl(unsigned int value, unsigned long port) { if (CHECK_AX88796L_PORT(port)) - maybebadio(outl, port); + maybebadio(port); else if (PXSEG(port)) *(volatile unsigned long *)port = value; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - *(volatile unsigned long *)PCI_IOMAP(port) = value; + else if (is_pci_ioaddr(port) || shifted_port(port)) + *(volatile unsigned long *)pci_ioaddr(port) = value; else - maybebadio(outl, port); + maybebadio(port); } void rts7751r2d_insb(unsigned long port, void *addr, unsigned long count) { + unsigned long a = (unsigned long)addr; volatile __u8 *bp; volatile __u16 *p; - unsigned char *s = addr; if (CHECK_AX88796L_PORT(port)) { p = (volatile unsigned short *)port88796l(port, 0); - while (count--) *s++ = *p & 0xff; + while (count--) + ctrl_outb(*p & 0xff, a++); } else if (PXSEG(port)) - while (count--) *s++ = *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - bp = (__u8 *)PCI_IOMAP(port); - while (count--) *s++ = *bp; + while (count--) + ctrl_outb(ctrl_inb(port), a++); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + bp = (__u8 *)pci_ioaddr(port); + while (count--) + ctrl_outb(*bp, a++); } else { p = (volatile unsigned short *)port2adr(port); - while (count--) *s++ = *p & 0xff; + while (count--) + ctrl_outb(*p & 0xff, a++); } } void rts7751r2d_insw(unsigned long port, void *addr, unsigned long count) { + unsigned long a = (unsigned long)addr; volatile __u16 *p; - __u16 *s = addr; if (CHECK_AX88796L_PORT(port)) p = (volatile unsigned short *)port88796l(port, 1); else if (PXSEG(port)) p = (volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - p = (volatile unsigned short *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + p = (volatile unsigned short *)pci_ioaddr(port); else p = (volatile unsigned short *)port2adr(port); - while (count--) *s++ = *p; + while (count--) + ctrl_outw(*p, a++); } void rts7751r2d_insl(unsigned long port, void *addr, unsigned long count) { if (CHECK_AX88796L_PORT(port)) - maybebadio(insl, port); - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile __u32 *p = (__u32 *)PCI_IOMAP(port); - __u32 *s = addr; + maybebadio(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + unsigned long a = (unsigned long)addr; - while (count--) *s++ = *p; + while (count--) { + ctrl_outl(ctrl_inl(pci_ioaddr(port)), a); + a += 4; + } } else - maybebadio(insl, port); + maybebadio(port); } void rts7751r2d_outsb(unsigned long port, const void *addr, unsigned long count) { + unsigned long a = (unsigned long)addr; volatile __u8 *bp; volatile __u16 *p; - const __u8 *s = addr; if (CHECK_AX88796L_PORT(port)) { p = (volatile unsigned short *)port88796l(port, 0); - while (count--) *p = *s++; + while (count--) + *p = ctrl_inb(a++); } else if (PXSEG(port)) - while (count--) *(volatile unsigned char *)port = *s++; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - bp = (__u8 *)PCI_IOMAP(port); - while (count--) *bp = *s++; + while (count--) + ctrl_outb(a++, port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + bp = (__u8 *)pci_ioaddr(port); + while (count--) + *bp = ctrl_inb(a++); } else { p = (volatile unsigned short *)port2adr(port); - while (count--) *p = *s++; + while (count--) + *p = ctrl_inb(a++); } } void rts7751r2d_outsw(unsigned long port, const void *addr, unsigned long count) { + unsigned long a = (unsigned long)addr; volatile __u16 *p; - const __u16 *s = addr; if (CHECK_AX88796L_PORT(port)) p = (volatile unsigned short *)port88796l(port, 1); else if (PXSEG(port)) p = (volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) - p = (volatile unsigned short *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) + p = (volatile unsigned short *)pci_ioaddr(port); else p = (volatile unsigned short *)port2adr(port); - while (count--) *p = *s++; + + while (count--) { + ctrl_outw(*p, a); + a += 2; + } } void rts7751r2d_outsl(unsigned long port, const void *addr, unsigned long count) { if (CHECK_AX88796L_PORT(port)) - maybebadio(outsl, port); - else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) { - volatile __u32 *p = (__u32 *)PCI_IOMAP(port); - const __u32 *s = addr; + maybebadio(port); + else if (is_pci_ioaddr(port) || shifted_port(port)) { + unsigned long a = (unsigned long)addr; - while (count--) *p = *s++; + while (count--) { + ctrl_outl(ctrl_inl(a), pci_ioaddr(port)); + a += 4; + } } else - maybebadio(outsl, port); + maybebadio(port); } -void *rts7751r2d_ioremap(unsigned long offset, unsigned long size) -{ - if (offset >= 0xfd000000) - return (void *)offset; - else - return (void *)P2SEGADDR(offset); -} -EXPORT_SYMBOL(rts7751r2d_ioremap); - unsigned long rts7751r2d_isa_port2addr(unsigned long offset) { return port2adr(offset);
diff --git a/arch/sh/boards/renesas/rts7751r2d/irq.c b/arch/sh/boards/renesas/rts7751r2d/irq.c index 1545354..c915e7a 100644 --- a/arch/sh/boards/renesas/rts7751r2d/irq.c +++ b/arch/sh/boards/renesas/rts7751r2d/irq.c
@@ -41,30 +41,24 @@ static void disable_rts7751r2d_irq(unsigned int irq) { - unsigned long flags; unsigned short val; unsigned short mask = 0xffff ^ (0x0001 << mask_pos[irq]); /* Set the priority in IPR to 0 */ - local_irq_save(flags); val = ctrl_inw(IRLCNTR1); val &= mask; ctrl_outw(val, IRLCNTR1); - local_irq_restore(flags); } static void enable_rts7751r2d_irq(unsigned int irq) { - unsigned long flags; unsigned short val; unsigned short value = (0x0001 << mask_pos[irq]); /* Set priority in IPR back to original value */ - local_irq_save(flags); val = ctrl_inw(IRLCNTR1); val |= value; ctrl_outw(val, IRLCNTR1); - local_irq_restore(flags); } int rts7751r2d_irq_demux(int irq)
diff --git a/arch/sh/boards/renesas/rts7751r2d/led.c b/arch/sh/boards/renesas/rts7751r2d/led.c index 4d16de7..e14a13d 100644 --- a/arch/sh/boards/renesas/rts7751r2d/led.c +++ b/arch/sh/boards/renesas/rts7751r2d/led.c
@@ -12,8 +12,6 @@ #include <asm/io.h> #include <asm/rts7751r2d/rts7751r2d.h> -extern unsigned int debug_counter; - #ifdef CONFIG_HEARTBEAT #include <linux/sched.h> @@ -55,12 +53,3 @@ ctrl_outw(value, PA_OUTPORT); } -void debug_led_disp(void) -{ - unsigned short value; - - value = (unsigned short)debug_counter++; - rts7751r2d_led(value); - if (value == 0xff) - debug_counter = 0; -}
diff --git a/arch/sh/boards/renesas/rts7751r2d/mach.c b/arch/sh/boards/renesas/rts7751r2d/mach.c deleted file mode 100644 index 5ed9e97..0000000 --- a/arch/sh/boards/renesas/rts7751r2d/mach.c +++ /dev/null
@@ -1,69 +0,0 @@ -/* - * linux/arch/sh/kernel/mach_rts7751r2d.c - * - * Minor tweak of mach_se.c file to reference rts7751r2d-specific items. - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Machine vector for the Renesas Technology sales RTS7751R2D - */ - -#include <linux/init.h> -#include <linux/types.h> - -#include <asm/machvec.h> -#include <asm/rtc.h> -#include <asm/irq.h> -#include <asm/rts7751r2d/io.h> - -extern void heartbeat_rts7751r2d(void); -extern void init_rts7751r2d_IRQ(void); -extern void *rts7751r2d_ioremap(unsigned long, unsigned long); -extern int rts7751r2d_irq_demux(int irq); - -extern void *voyagergx_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t); -extern int voyagergx_consistent_free(struct device *, size_t, void *, dma_addr_t); - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_rts7751r2d __initmv = { - .mv_nr_irqs = 72, - - .mv_inb = rts7751r2d_inb, - .mv_inw = rts7751r2d_inw, - .mv_inl = rts7751r2d_inl, - .mv_outb = rts7751r2d_outb, - .mv_outw = rts7751r2d_outw, - .mv_outl = rts7751r2d_outl, - - .mv_inb_p = rts7751r2d_inb_p, - .mv_inw_p = rts7751r2d_inw, - .mv_inl_p = rts7751r2d_inl, - .mv_outb_p = rts7751r2d_outb_p, - .mv_outw_p = rts7751r2d_outw, - .mv_outl_p = rts7751r2d_outl, - - .mv_insb = rts7751r2d_insb, - .mv_insw = rts7751r2d_insw, - .mv_insl = rts7751r2d_insl, - .mv_outsb = rts7751r2d_outsb, - .mv_outsw = rts7751r2d_outsw, - .mv_outsl = rts7751r2d_outsl, - - .mv_ioremap = rts7751r2d_ioremap, - .mv_isa_port2addr = rts7751r2d_isa_port2addr, - .mv_init_irq = init_rts7751r2d_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_rts7751r2d, -#endif - .mv_irq_demux = rts7751r2d_irq_demux, - -#ifdef CONFIG_USB_OHCI_HCD - .mv_consistent_alloc = voyagergx_consistent_alloc, - .mv_consistent_free = voyagergx_consistent_free, -#endif -}; -ALIAS_MV(rts7751r2d)
diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c index 2587fd1..20597a6 100644 --- a/arch/sh/boards/renesas/rts7751r2d/setup.c +++ b/arch/sh/boards/renesas/rts7751r2d/setup.c
@@ -1,31 +1,142 @@ /* - * linux/arch/sh/kernel/setup_rts7751r2d.c - * - * Copyright (C) 2000 Kazumoto Kojima - * * Renesas Technology Sales RTS7751R2D Support. * - * Modified for RTS7751R2D by - * Atom Create Engineering Co., Ltd. 2002. + * Copyright (C) 2002 Atom Create Engineering Co., Ltd. + * Copyright (C) 2004 - 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. */ - #include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/serial_8250.h> +#include <linux/pm.h> #include <asm/io.h> -#include <asm/rts7751r2d/rts7751r2d.h> +#include <asm/machvec.h> +#include <asm/mach/rts7751r2d.h> +#include <asm/voyagergx.h> -unsigned int debug_counter; +extern void heartbeat_rts7751r2d(void); +extern void init_rts7751r2d_IRQ(void); +extern int rts7751r2d_irq_demux(int irq); -const char *get_system_type(void) +extern void *voyagergx_consistent_alloc(struct device *, size_t, dma_addr_t *, gfp_t); +extern int voyagergx_consistent_free(struct device *, size_t, void *, dma_addr_t); + +static struct plat_serial8250_port uart_platform_data[] = { + { + .membase = (void *)VOYAGER_UART_BASE, + .mapbase = VOYAGER_UART_BASE, + .iotype = UPIO_MEM, + .irq = VOYAGER_UART0_IRQ, + .flags = UPF_BOOT_AUTOCONF, + .regshift = 2, + .uartclk = (9600 * 16), + }, { + .flags = 0, + }, +}; + +static void __init voyagergx_serial_init(void) { - return "RTS7751R2D"; + unsigned long val; + + /* + * GPIO Control + */ + val = inl(GPIO_MUX_HIGH); + val |= 0x00001fe0; + outl(val, GPIO_MUX_HIGH); + + /* + * Power Mode Gate + */ + val = inl(POWER_MODE0_GATE); + val |= (POWER_MODE0_GATE_U0 | POWER_MODE0_GATE_U1); + outl(val, POWER_MODE0_GATE); + + val = inl(POWER_MODE1_GATE); + val |= (POWER_MODE1_GATE_U0 | POWER_MODE1_GATE_U1); + outl(val, POWER_MODE1_GATE); +} + +static struct platform_device uart_device = { + .name = "serial8250", + .id = -1, + .dev = { + .platform_data = uart_platform_data, + }, +}; + +static struct platform_device *rts7751r2d_devices[] __initdata = { + &uart_device, +}; + +static int __init rts7751r2d_devices_setup(void) +{ + return platform_add_devices(rts7751r2d_devices, + ARRAY_SIZE(rts7751r2d_devices)); +} + +static void rts7751r2d_power_off(void) +{ + ctrl_outw(0x0001, PA_POWOFF); } /* * Initialize the board */ -void __init platform_setup(void) +static void __init rts7751r2d_setup(char **cmdline_p) { - printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n"); + device_initcall(rts7751r2d_devices_setup); + ctrl_outw(0x0000, PA_OUTPORT); - debug_counter = 0; + pm_power_off = rts7751r2d_power_off; + + voyagergx_serial_init(); + + printk(KERN_INFO "Renesas Technology Sales RTS7751R2D support.\n"); } + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_rts7751r2d __initmv = { + .mv_name = "RTS7751R2D", + .mv_setup = rts7751r2d_setup, + .mv_nr_irqs = 72, + + .mv_inb = rts7751r2d_inb, + .mv_inw = rts7751r2d_inw, + .mv_inl = rts7751r2d_inl, + .mv_outb = rts7751r2d_outb, + .mv_outw = rts7751r2d_outw, + .mv_outl = rts7751r2d_outl, + + .mv_inb_p = rts7751r2d_inb_p, + .mv_inw_p = rts7751r2d_inw, + .mv_inl_p = rts7751r2d_inl, + .mv_outb_p = rts7751r2d_outb_p, + .mv_outw_p = rts7751r2d_outw, + .mv_outl_p = rts7751r2d_outl, + + .mv_insb = rts7751r2d_insb, + .mv_insw = rts7751r2d_insw, + .mv_insl = rts7751r2d_insl, + .mv_outsb = rts7751r2d_outsb, + .mv_outsw = rts7751r2d_outsw, + .mv_outsl = rts7751r2d_outsl, + + .mv_init_irq = init_rts7751r2d_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_rts7751r2d, +#endif + .mv_irq_demux = rts7751r2d_irq_demux, + +#ifdef CONFIG_USB_SM501 + .mv_consistent_alloc = voyagergx_consistent_alloc, + .mv_consistent_free = voyagergx_consistent_free, +#endif +}; +ALIAS_MV(rts7751r2d)
diff --git a/arch/sh/boards/renesas/sh7710voipgw/Makefile b/arch/sh/boards/renesas/sh7710voipgw/Makefile new file mode 100644 index 0000000..7703756 --- /dev/null +++ b/arch/sh/boards/renesas/sh7710voipgw/Makefile
@@ -0,0 +1 @@ +obj-y := setup.o
diff --git a/arch/sh/boards/renesas/sh7710voipgw/setup.c b/arch/sh/boards/renesas/sh7710voipgw/setup.c new file mode 100644 index 0000000..e57e7af --- /dev/null +++ b/arch/sh/boards/renesas/sh7710voipgw/setup.c
@@ -0,0 +1,109 @@ +/* + * Renesas Technology SH7710 VoIP Gateway + * + * Copyright (C) 2006 Ranjit Deshpande + * Kenati Technologies Inc. + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + */ +#include <linux/init.h> +#include <asm/machvec.h> +#include <asm/irq.h> +#include <asm/io.h> +#include <asm/irq.h> + +/* + * Initialize IRQ setting + */ +static void __init sh7710voipgw_init_irq(void) +{ + /* Disable all interrupts in IPR registers */ + ctrl_outw(0x0, INTC_IPRA); + ctrl_outw(0x0, INTC_IPRB); + ctrl_outw(0x0, INTC_IPRC); + ctrl_outw(0x0, INTC_IPRD); + ctrl_outw(0x0, INTC_IPRE); + ctrl_outw(0x0, INTC_IPRF); + ctrl_outw(0x0, INTC_IPRG); + ctrl_outw(0x0, INTC_IPRH); + ctrl_outw(0x0, INTC_IPRI); + + /* Ack all interrupt sources in the IRR0 register */ + ctrl_outb(0x3f, INTC_IRR0); + + /* Use IRQ0 - IRQ3 as active low interrupt lines i.e. disable + * IRL mode. + */ + ctrl_outw(0x2aa, INTC_ICR1); + + /* Now make IPR interrupts */ + make_ipr_irq(TIMER2_IRQ, TIMER2_IPR_ADDR, + TIMER2_IPR_POS, TIMER2_PRIORITY); + make_ipr_irq(WDT_IRQ, WDT_IPR_ADDR, WDT_IPR_POS, WDT_PRIORITY); + + /* SCIF0 */ + make_ipr_irq(SCIF0_ERI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, + SCIF0_PRIORITY); + make_ipr_irq(SCIF0_RXI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, + SCIF0_PRIORITY); + make_ipr_irq(SCIF0_BRI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, + SCIF0_PRIORITY); + make_ipr_irq(SCIF0_TXI_IRQ, SCIF0_IPR_ADDR, SCIF0_IPR_POS, + SCIF0_PRIORITY); + + /* DMAC-1 */ + make_ipr_irq(DMTE0_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY); + make_ipr_irq(DMTE1_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY); + make_ipr_irq(DMTE2_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY); + make_ipr_irq(DMTE3_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY); + + /* DMAC-2 */ + make_ipr_irq(DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY); + make_ipr_irq(DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY); + + /* IPSEC */ + make_ipr_irq(IPSEC_IRQ, IPSEC_IPR_ADDR, IPSEC_IPR_POS, IPSEC_PRIORITY); + + /* EDMAC */ + make_ipr_irq(EDMAC0_IRQ, EDMAC0_IPR_ADDR, EDMAC0_IPR_POS, + EDMAC0_PRIORITY); + make_ipr_irq(EDMAC1_IRQ, EDMAC1_IPR_ADDR, EDMAC1_IPR_POS, + EDMAC1_PRIORITY); + make_ipr_irq(EDMAC2_IRQ, EDMAC2_IPR_ADDR, EDMAC2_IPR_POS, + EDMAC2_PRIORITY); + + /* SIOF0 */ + make_ipr_irq(SIOF0_ERI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, + SIOF0_PRIORITY); + make_ipr_irq(SIOF0_TXI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, + SIOF0_PRIORITY); + make_ipr_irq(SIOF0_RXI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, + SIOF0_PRIORITY); + make_ipr_irq(SIOF0_CCI_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, + SIOF0_PRIORITY); + + /* SIOF1 */ + make_ipr_irq(SIOF1_ERI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, + SIOF1_PRIORITY); + make_ipr_irq(SIOF1_TXI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, + SIOF1_PRIORITY); + make_ipr_irq(SIOF1_RXI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, + SIOF1_PRIORITY); + make_ipr_irq(SIOF1_CCI_IRQ, SIOF1_IPR_ADDR, SIOF1_IPR_POS, + SIOF1_PRIORITY); + + /* SLIC IRQ's */ + make_ipr_irq(IRQ1_IRQ, IRQ1_IPR_ADDR, IRQ1_IPR_POS, IRQ1_PRIORITY); + make_ipr_irq(IRQ2_IRQ, IRQ2_IPR_ADDR, IRQ2_IPR_POS, IRQ2_PRIORITY); +} + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_sh7710voipgw __initmv = { + .mv_name = "SH7710 VoIP Gateway", + .mv_nr_irqs = 104, + .mv_init_irq = sh7710voipgw_init_irq, +}; +ALIAS_MV(sh7710voipgw)
diff --git a/arch/sh/boards/renesas/systemh/io.c b/arch/sh/boards/renesas/systemh/io.c index cf97901..cde6e5d 100644 --- a/arch/sh/boards/renesas/systemh/io.c +++ b/arch/sh/boards/renesas/systemh/io.c
@@ -5,66 +5,25 @@ * Based largely on io_se.c. * * I/O routine for Hitachi 7751 Systemh. - * */ - #include <linux/kernel.h> #include <linux/types.h> -#include <asm/systemh/7751systemh.h> +#include <linux/pci.h> +#include <asm/systemh7751.h> #include <asm/addrspace.h> #include <asm/io.h> -#include <linux/pci.h> -#include "../../drivers/pci/pci-sh7751.h" - -/* - * The 7751 SystemH Engine uses the built-in PCI controller (PCIC) - * of the 7751 processor, and has a SuperIO accessible on its memory - * bus. - */ - -#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) -#define PCI_IO_AREA SH7751_PCI_IO_BASE -#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE - -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) #define ETHER_IOMAP(adr) (0xB3000000 + (adr)) /*map to 16bits access area of smc lan chip*/ - -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - static inline volatile __u16 * port2adr(unsigned int port) { if (port >= 0x2000) return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000)); -#if 0 - else - return (volatile __u16 *) (PA_SUPERIO + (port << 1)); -#endif - maybebadio(name,(unsigned long)port); + maybebadio((unsigned long)port); return (volatile __u16*)port; } -/* In case someone configures the kernel w/o PCI support: in that */ -/* scenario, don't ever bother to check for PCI-window addresses */ - -/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ -#if defined(CONFIG_PCI) -#define CHECK_SH7751_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) -#else -#define CHECK_SH7751_PCIIO(port) (0) -#endif - /* * General outline: remap really low stuff [eventually] to SuperIO, * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) @@ -76,8 +35,8 @@ { if (PXSEG(port)) return *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned char *)pci_ioaddr(port); else if (port <= 0x3F1) return *(volatile unsigned char *)ETHER_IOMAP(port); else @@ -90,13 +49,13 @@ if (PXSEG(port)) v = *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) - v = *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + v = *(volatile unsigned char *)pci_ioaddr(port); else if (port <= 0x3F1) v = *(volatile unsigned char *)ETHER_IOMAP(port); else v = (*port2adr(port))&0xff; - delay(); + ctrl_delay(); return v; } @@ -104,14 +63,14 @@ { if (PXSEG(port)) return *(volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned short *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned short *)pci_ioaddr(port); else if (port >= 0x2000) return *port2adr(port); else if (port <= 0x3F1) return *(volatile unsigned int *)ETHER_IOMAP(port); else - maybebadio(inw, port); + maybebadio(port); return 0; } @@ -119,14 +78,14 @@ { if (PXSEG(port)) return *(volatile unsigned long *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned int *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned int *)pci_ioaddr(port); else if (port >= 0x2000) return *port2adr(port); else if (port <= 0x3F1) return *(volatile unsigned int *)ETHER_IOMAP(port); else - maybebadio(inl, port); + maybebadio(port); return 0; } @@ -135,8 +94,8 @@ if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned char*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; else if (port <= 0x3F1) *(volatile unsigned char *)ETHER_IOMAP(port) = value; else @@ -147,37 +106,37 @@ { if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned char*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; else if (port <= 0x3F1) *(volatile unsigned char *)ETHER_IOMAP(port) = value; else *(port2adr(port)) = value; - delay(); + ctrl_delay(); } void sh7751systemh_outw(unsigned short value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned short *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned short *)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned short *)pci_ioaddr(port)) = value; else if (port >= 0x2000) *port2adr(port) = value; else if (port <= 0x3F1) *(volatile unsigned short *)ETHER_IOMAP(port) = value; else - maybebadio(outw, port); + maybebadio(port); } void sh7751systemh_outl(unsigned int value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned long *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned long*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned long*)pci_ioaddr(port)) = value; else - maybebadio(outl, port); + maybebadio(port); } void sh7751systemh_insb(unsigned long port, void *addr, unsigned long count) @@ -194,7 +153,7 @@ void sh7751systemh_insl(unsigned long port, void *addr, unsigned long count) { - maybebadio(insl, port); + maybebadio(port); } void sh7751systemh_outsb(unsigned long port, const void *addr, unsigned long count) @@ -211,73 +170,5 @@ void sh7751systemh_outsl(unsigned long port, const void *addr, unsigned long count) { - maybebadio(outsw, port); -} - -/* For read/write calls, just copy generic (pass-thru); PCIMBR is */ -/* already set up. For a larger memory space, these would need to */ -/* reset PCIMBR as needed on a per-call basis... */ - -unsigned char sh7751systemh_readb(unsigned long addr) -{ - return *(volatile unsigned char*)addr; -} - -unsigned short sh7751systemh_readw(unsigned long addr) -{ - return *(volatile unsigned short*)addr; -} - -unsigned int sh7751systemh_readl(unsigned long addr) -{ - return *(volatile unsigned long*)addr; -} - -void sh7751systemh_writeb(unsigned char b, unsigned long addr) -{ - *(volatile unsigned char*)addr = b; -} - -void sh7751systemh_writew(unsigned short b, unsigned long addr) -{ - *(volatile unsigned short*)addr = b; -} - -void sh7751systemh_writel(unsigned int b, unsigned long addr) -{ - *(volatile unsigned long*)addr = b; -} - - - -/* Map ISA bus address to the real address. Only for PCMCIA. */ - -/* ISA page descriptor. */ -static __u32 sh_isa_memmap[256]; - -#if 0 -static int -sh_isa_mmap(__u32 start, __u32 length, __u32 offset) -{ - int idx; - - if (start >= 0x100000 || (start & 0xfff) || (length != 0x1000)) - return -1; - - idx = start >> 12; - sh_isa_memmap[idx] = 0xb8000000 + (offset &~ 0xfff); - printk("sh_isa_mmap: start %x len %x offset %x (idx %x paddr %x)\n", - start, length, offset, idx, sh_isa_memmap[idx]); - return 0; -} -#endif - -unsigned long -sh7751systemh_isa_port2addr(unsigned long offset) -{ - int idx; - - idx = (offset >> 12) & 0xff; - offset &= 0xfff; - return sh_isa_memmap[idx] + offset; + maybebadio(port); }
diff --git a/arch/sh/boards/renesas/systemh/irq.c b/arch/sh/boards/renesas/systemh/irq.c index 8372d96..8d016da 100644 --- a/arch/sh/boards/renesas/systemh/irq.c +++ b/arch/sh/boards/renesas/systemh/irq.c
@@ -15,7 +15,7 @@ #include <linux/hdreg.h> #include <linux/ide.h> #include <asm/io.h> -#include <asm/mach/7751systemh.h> +#include <asm/systemh7751.h> #include <asm/smc37c93x.h> /* address of external interrupt mask register @@ -57,12 +57,9 @@ static void disable_systemh_irq(unsigned int irq) { if (systemh_irq_mask_register) { - unsigned long flags; unsigned long val, mask = 0x01 << 1; /* Clear the "irq"th bit in the mask and set it in the request */ - local_irq_save(flags); - val = ctrl_inl((unsigned long)systemh_irq_mask_register); val &= ~mask; ctrl_outl(val, (unsigned long)systemh_irq_mask_register); @@ -70,23 +67,18 @@ val = ctrl_inl((unsigned long)systemh_irq_request_register); val |= mask; ctrl_outl(val, (unsigned long)systemh_irq_request_register); - - local_irq_restore(flags); } } static void enable_systemh_irq(unsigned int irq) { if (systemh_irq_mask_register) { - unsigned long flags; unsigned long val, mask = 0x01 << 1; /* Set "irq"th bit in the mask register */ - local_irq_save(flags); val = ctrl_inl((unsigned long)systemh_irq_mask_register); val |= mask; ctrl_outl(val, (unsigned long)systemh_irq_mask_register); - local_irq_restore(flags); } }
diff --git a/arch/sh/boards/renesas/systemh/setup.c b/arch/sh/boards/renesas/systemh/setup.c index 826fa3d..a8467bf 100644 --- a/arch/sh/boards/renesas/systemh/setup.c +++ b/arch/sh/boards/renesas/systemh/setup.c
@@ -15,28 +15,21 @@ * for more details. */ #include <linux/init.h> -#include <asm/mach/7751systemh.h> -#include <asm/mach/io.h> #include <asm/machvec.h> +#include <asm/systemh7751.h> extern void make_systemh_irq(unsigned int irq); -const char *get_system_type(void) -{ - return "7751 SystemH"; -} - /* * Initialize IRQ setting */ -void __init init_7751systemh_IRQ(void) +static void __init sh7751systemh_init_irq(void) { -/* make_ipr_irq(10, BCR_ILCRD, 1, 0x0f-10); LAN */ -/* make_ipr_irq(14, BCR_ILCRA, 2, 0x0f-4); */ make_systemh_irq(0xb); /* Ethernet interrupt */ } struct sh_machine_vector mv_7751systemh __initmv = { + .mv_name = "7751 SystemH", .mv_nr_irqs = 72, .mv_inb = sh7751systemh_inb, @@ -60,21 +53,6 @@ .mv_outsw = sh7751systemh_outsw, .mv_outsl = sh7751systemh_outsl, - .mv_readb = sh7751systemh_readb, - .mv_readw = sh7751systemh_readw, - .mv_readl = sh7751systemh_readl, - .mv_writeb = sh7751systemh_writeb, - .mv_writew = sh7751systemh_writew, - .mv_writel = sh7751systemh_writel, - - .mv_isa_port2addr = sh7751systemh_isa_port2addr, - - .mv_init_irq = init_7751systemh_IRQ, + .mv_init_irq = sh7751system_init_irq, }; ALIAS_MV(7751systemh) - -int __init platform_setup(void) -{ - return 0; -} -
diff --git a/arch/sh/boards/saturn/setup.c b/arch/sh/boards/saturn/setup.c index bea6c572..a3a37c9 100644 --- a/arch/sh/boards/saturn/setup.c +++ b/arch/sh/boards/saturn/setup.c
@@ -9,22 +9,17 @@ */ #include <linux/kernel.h> #include <linux/init.h> - #include <asm/io.h> #include <asm/machvec.h> #include <asm/mach/io.h> extern int saturn_irq_demux(int irq_nr); -const char *get_system_type(void) -{ - return "Sega Saturn"; -} - /* * The Machine Vector */ struct sh_machine_vector mv_saturn __initmv = { + .mv_name = "Sega Saturn", .mv_nr_irqs = 80, /* Fix this later */ .mv_isa_port2addr = saturn_isa_port2addr, @@ -33,11 +28,4 @@ .mv_ioremap = saturn_ioremap, .mv_iounmap = saturn_iounmap, }; - ALIAS_MV(saturn) - -int __init platform_setup(void) -{ - return 0; -} -
diff --git a/arch/sh/boards/se/7300/io.c b/arch/sh/boards/se/7300/io.c index f449a94..8a03d7a 100644 --- a/arch/sh/boards/se/7300/io.c +++ b/arch/sh/boards/se/7300/io.c
@@ -9,8 +9,8 @@ */ #include <linux/kernel.h> -#include <asm/mach/se7300.h> #include <asm/io.h> +#include <asm/se7300.h> #define badio(fn, a) panic("bad i/o operation %s for %08lx.", #fn, a) @@ -99,6 +99,7 @@ badio(inw, port); } +#ifdef CONFIG_SMC91X /* MSTLANEX01 LAN at 0xb400:0000 */ static struct iop laniop = { .start = 0x300, @@ -110,6 +111,7 @@ .outb = simple_outb, .outw = simple_outw, }; +#endif /* NE2000 pc card NIC */ static struct iop neiop = { @@ -123,6 +125,7 @@ .outw = simple_outw, }; +#ifdef CONFIG_IDE /* CF in CF slot */ static struct iop cfiop = { .base = 0xb0600000, @@ -132,12 +135,13 @@ .outb = pcc_outb, .outw = simple_outw, }; +#endif static __inline__ struct iop * port2iop(unsigned long port) { if (0) ; -#if defined(CONFIG_SMC91111) +#if defined(CONFIG_SMC91X) else if (laniop.check(&laniop, port)) return &laniop; #endif
diff --git a/arch/sh/boards/se/7300/irq.c b/arch/sh/boards/se/7300/irq.c index 216a78d..ad1034f 100644 --- a/arch/sh/boards/se/7300/irq.c +++ b/arch/sh/boards/se/7300/irq.c
@@ -11,7 +11,7 @@ #include <linux/irq.h> #include <asm/irq.h> #include <asm/io.h> -#include <asm/mach/se7300.h> +#include <asm/se7300.h> /* * Initialize IRQ setting
diff --git a/arch/sh/boards/se/7300/led.c b/arch/sh/boards/se/7300/led.c index ad51f0a..4d03bb7 100644 --- a/arch/sh/boards/se/7300/led.c +++ b/arch/sh/boards/se/7300/led.c
@@ -12,24 +12,10 @@ */ #include <linux/sched.h> -#include <asm/mach/se7300.h> - -static void -mach_led(int position, int value) -{ - volatile unsigned short *p = (volatile unsigned short *) PA_LED; - - if (value) { - *p |= (1 << 8); - } else { - *p &= ~(1 << 8); - } -} - +#include <asm/se7300.h> /* Cycle the LED's in the clasic Knightrider/Sun pattern */ -void -heartbeat_7300se(void) +void heartbeat_7300se(void) { static unsigned int cnt = 0, period = 0; volatile unsigned short *p = (volatile unsigned short *) PA_LED;
diff --git a/arch/sh/boards/se/7300/setup.c b/arch/sh/boards/se/7300/setup.c index ebcd98d..6f082a72 100644 --- a/arch/sh/boards/se/7300/setup.c +++ b/arch/sh/boards/se/7300/setup.c
@@ -9,23 +9,16 @@ #include <linux/init.h> #include <asm/machvec.h> -#include <asm/machvec_init.h> -#include <asm/mach/io.h> +#include <asm/se7300.h> void heartbeat_7300se(void); void init_7300se_IRQ(void); -const char * -get_system_type(void) -{ - return "SolutionEngine 7300"; -} - /* * The Machine Vector */ - struct sh_machine_vector mv_7300se __initmv = { + .mv_name = "SolutionEngine 7300", .mv_nr_irqs = 109, .mv_inb = sh7300se_inb, .mv_inw = sh7300se_inw, @@ -53,13 +46,4 @@ .mv_heartbeat = heartbeat_7300se, #endif }; - ALIAS_MV(7300se) -/* - * Initialize the board - */ -void __init -platform_setup(void) -{ - -}
diff --git a/arch/sh/boards/se/73180/io.c b/arch/sh/boards/se/73180/io.c index 755df5a..7271557 100644 --- a/arch/sh/boards/se/73180/io.c +++ b/arch/sh/boards/se/73180/io.c
@@ -99,6 +99,7 @@ badio(inw, port); } +#ifdef CONFIG_SMC91X /* MSTLANEX01 LAN at 0xb400:0000 */ static struct iop laniop = { .start = 0x300, @@ -110,6 +111,7 @@ .outb = simple_outb, .outw = simple_outw, }; +#endif /* NE2000 pc card NIC */ static struct iop neiop = { @@ -123,6 +125,7 @@ .outw = simple_outw, }; +#ifdef CONFIG_IDE /* CF in CF slot */ static struct iop cfiop = { .base = 0xb0600000, @@ -132,12 +135,13 @@ .outb = pcc_outb, .outw = simple_outw, }; +#endif static __inline__ struct iop * port2iop(unsigned long port) { if (0) ; -#if defined(CONFIG_SMC91111) +#if defined(CONFIG_SMC91X) else if (laniop.check(&laniop, port)) return &laniop; #endif
diff --git a/arch/sh/boards/se/73180/irq.c b/arch/sh/boards/se/73180/irq.c index 4344d0e..2c62b8e 100644 --- a/arch/sh/boards/se/73180/irq.c +++ b/arch/sh/boards/se/73180/irq.c
@@ -7,7 +7,6 @@ * Modified for SH-Mobile SolutionEngine 73180 Support * by YOSHII Takashi <yoshii-takashi@hitachi-ul.co.jp> * - * */ #include <linux/init.h> @@ -17,14 +16,6 @@ #include <asm/mach/se73180.h> static int -intreq2irq(int i) -{ - if (i == 5) - return 10; - return 32 + 7 - i; -} - -static int irq2intreq(int irq) { if (irq == 10)
diff --git a/arch/sh/boards/se/73180/led.c b/arch/sh/boards/se/73180/led.c index 610439f..4b72e9a 100644 --- a/arch/sh/boards/se/73180/led.c +++ b/arch/sh/boards/se/73180/led.c
@@ -14,21 +14,8 @@ #include <linux/sched.h> #include <asm/mach/se73180.h> -static void -mach_led(int position, int value) -{ - volatile unsigned short *p = (volatile unsigned short *) PA_LED; - - if (value) { - *p |= (1 << LED_SHIFT); - } else { - *p &= ~(1 << LED_SHIFT); - } -} - /* Cycle the LED's in the clasic Knightrider/Sun pattern */ -void -heartbeat_73180se(void) +void heartbeat_73180se(void) { static unsigned int cnt = 0, period = 0; volatile unsigned short *p = (volatile unsigned short *) PA_LED;
diff --git a/arch/sh/boards/se/73180/setup.c b/arch/sh/boards/se/73180/setup.c index cdb7b5f..b38ef50 100644 --- a/arch/sh/boards/se/73180/setup.c +++ b/arch/sh/boards/se/73180/setup.c
@@ -11,23 +11,17 @@ #include <linux/init.h> #include <asm/machvec.h> -#include <asm/machvec_init.h> -#include <asm/mach/io.h> +#include <asm/se73180.h> +#include <asm/irq.h> void heartbeat_73180se(void); void init_73180se_IRQ(void); -const char * -get_system_type(void) -{ - return "SolutionEngine 73180"; -} - /* * The Machine Vector */ - struct sh_machine_vector mv_73180se __initmv = { + .mv_name = "SolutionEngine 73180", .mv_nr_irqs = 108, .mv_inb = sh73180se_inb, .mv_inw = sh73180se_inw, @@ -51,17 +45,9 @@ .mv_outsl = sh73180se_outsl, .mv_init_irq = init_73180se_IRQ, + .mv_irq_demux = shmse_irq_demux, #ifdef CONFIG_HEARTBEAT .mv_heartbeat = heartbeat_73180se, #endif }; - ALIAS_MV(73180se) -/* - * Initialize the board - */ -void __init -platform_setup(void) -{ - -}
diff --git a/arch/sh/boards/se/7343/Makefile b/arch/sh/boards/se/7343/Makefile new file mode 100644 index 0000000..4291069 --- /dev/null +++ b/arch/sh/boards/se/7343/Makefile
@@ -0,0 +1,7 @@ +# +# Makefile for the 7343 SolutionEngine specific parts of the kernel +# + +obj-y := setup.o io.o irq.o + +obj-$(CONFIG_HEARTBEAT) += led.o
diff --git a/arch/sh/boards/se/7343/io.c b/arch/sh/boards/se/7343/io.c new file mode 100644 index 0000000..646661a --- /dev/null +++ b/arch/sh/boards/se/7343/io.c
@@ -0,0 +1,275 @@ +/* + * arch/sh/boards/se/7343/io.c + * + * I/O routine for SH-Mobile3AS 7343 SolutionEngine. + * + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <asm/io.h> +#include <asm/mach/se7343.h> + +#define badio(fn, a) panic("bad i/o operation %s for %08lx.", #fn, a) + +struct iop { + unsigned long start, end; + unsigned long base; + struct iop *(*check) (struct iop * p, unsigned long port); + unsigned char (*inb) (struct iop * p, unsigned long port); + unsigned short (*inw) (struct iop * p, unsigned long port); + void (*outb) (struct iop * p, unsigned char value, unsigned long port); + void (*outw) (struct iop * p, unsigned short value, unsigned long port); +}; + +struct iop * +simple_check(struct iop *p, unsigned long port) +{ + static int count; + + if (count < 100) + count++; + + port &= 0xFFFF; + + if ((p->start <= port) && (port <= p->end)) + return p; + else + badio(check, port); +} + +struct iop * +ide_check(struct iop *p, unsigned long port) +{ + if (((0x1f0 <= port) && (port <= 0x1f7)) || (port == 0x3f7)) + return p; + return NULL; +} + +unsigned char +simple_inb(struct iop *p, unsigned long port) +{ + return *(unsigned char *) (p->base + port); +} + +unsigned short +simple_inw(struct iop *p, unsigned long port) +{ + return *(unsigned short *) (p->base + port); +} + +void +simple_outb(struct iop *p, unsigned char value, unsigned long port) +{ + *(unsigned char *) (p->base + port) = value; +} + +void +simple_outw(struct iop *p, unsigned short value, unsigned long port) +{ + *(unsigned short *) (p->base + port) = value; +} + +unsigned char +pcc_inb(struct iop *p, unsigned long port) +{ + unsigned long addr = p->base + port + 0x40000; + unsigned long v; + + if (port & 1) + addr += 0x00400000; + v = *(volatile unsigned char *) addr; + return v; +} + +void +pcc_outb(struct iop *p, unsigned char value, unsigned long port) +{ + unsigned long addr = p->base + port + 0x40000; + + if (port & 1) + addr += 0x00400000; + *(volatile unsigned char *) addr = value; +} + +unsigned char +bad_inb(struct iop *p, unsigned long port) +{ + badio(inb, port); +} + +void +bad_outb(struct iop *p, unsigned char value, unsigned long port) +{ + badio(inw, port); +} + +#ifdef CONFIG_SMC91X +/* MSTLANEX01 LAN at 0xb400:0000 */ +static struct iop laniop = { + .start = 0x00, + .end = 0x0F, + .base = 0x04000000, + .check = simple_check, + .inb = simple_inb, + .inw = simple_inw, + .outb = simple_outb, + .outw = simple_outw, +}; +#endif + +#ifdef CONFIG_NE2000 +/* NE2000 pc card NIC */ +static struct iop neiop = { + .start = 0x280, + .end = 0x29f, + .base = 0xb0600000 + 0x80, /* soft 0x280 -> hard 0x300 */ + .check = simple_check, + .inb = pcc_inb, + .inw = simple_inw, + .outb = pcc_outb, + .outw = simple_outw, +}; +#endif + +#ifdef CONFIG_IDE +/* CF in CF slot */ +static struct iop cfiop = { + .base = 0xb0600000, + .check = ide_check, + .inb = pcc_inb, + .inw = simple_inw, + .outb = pcc_outb, + .outw = simple_outw, +}; +#endif + +static __inline__ struct iop * +port2iop(unsigned long port) +{ + if (0) ; +#if defined(CONFIG_SMC91X) + else if (laniop.check(&laniop, port)) + return &laniop; +#endif +#if defined(CONFIG_NE2000) + else if (neiop.check(&neiop, port)) + return &neiop; +#endif +#if defined(CONFIG_IDE) + else if (cfiop.check(&cfiop, port)) + return &cfiop; +#endif + else + return NULL; +} + +static inline void +delay(void) +{ + ctrl_inw(0xac000000); + ctrl_inw(0xac000000); +} + +unsigned char +sh7343se_inb(unsigned long port) +{ + struct iop *p = port2iop(port); + return (p->inb) (p, port); +} + +unsigned char +sh7343se_inb_p(unsigned long port) +{ + unsigned char v = sh7343se_inb(port); + delay(); + return v; +} + +unsigned short +sh7343se_inw(unsigned long port) +{ + struct iop *p = port2iop(port); + return (p->inw) (p, port); +} + +unsigned int +sh7343se_inl(unsigned long port) +{ + badio(inl, port); +} + +void +sh7343se_outb(unsigned char value, unsigned long port) +{ + struct iop *p = port2iop(port); + (p->outb) (p, value, port); +} + +void +sh7343se_outb_p(unsigned char value, unsigned long port) +{ + sh7343se_outb(value, port); + delay(); +} + +void +sh7343se_outw(unsigned short value, unsigned long port) +{ + struct iop *p = port2iop(port); + (p->outw) (p, value, port); +} + +void +sh7343se_outl(unsigned int value, unsigned long port) +{ + badio(outl, port); +} + +void +sh7343se_insb(unsigned long port, void *addr, unsigned long count) +{ + unsigned char *a = addr; + struct iop *p = port2iop(port); + while (count--) + *a++ = (p->inb) (p, port); +} + +void +sh7343se_insw(unsigned long port, void *addr, unsigned long count) +{ + unsigned short *a = addr; + struct iop *p = port2iop(port); + while (count--) + *a++ = (p->inw) (p, port); +} + +void +sh7343se_insl(unsigned long port, void *addr, unsigned long count) +{ + badio(insl, port); +} + +void +sh7343se_outsb(unsigned long port, const void *addr, unsigned long count) +{ + unsigned char *a = (unsigned char *) addr; + struct iop *p = port2iop(port); + while (count--) + (p->outb) (p, *a++, port); +} + +void +sh7343se_outsw(unsigned long port, const void *addr, unsigned long count) +{ + unsigned short *a = (unsigned short *) addr; + struct iop *p = port2iop(port); + while (count--) + (p->outw) (p, *a++, port); +} + +void +sh7343se_outsl(unsigned long port, const void *addr, unsigned long count) +{ + badio(outsw, port); +}
diff --git a/arch/sh/boards/se/7343/irq.c b/arch/sh/boards/se/7343/irq.c new file mode 100644 index 0000000..b41e3d4 --- /dev/null +++ b/arch/sh/boards/se/7343/irq.c
@@ -0,0 +1,193 @@ +/* + * arch/sh/boards/se/7343/irq.c + * + */ + +#include <linux/config.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <asm/irq.h> +#include <asm/io.h> +#include <asm/mach/se7343.h> + +static void +disable_intreq_irq(unsigned int irq) +{ + int bit = irq - OFFCHIP_IRQ_BASE; + u16 val; + + val = ctrl_inw(PA_CPLD_IMSK); + val |= 1 << bit; + ctrl_outw(val, PA_CPLD_IMSK); +} + +static void +enable_intreq_irq(unsigned int irq) +{ + int bit = irq - OFFCHIP_IRQ_BASE; + u16 val; + + val = ctrl_inw(PA_CPLD_IMSK); + val &= ~(1 << bit); + ctrl_outw(val, PA_CPLD_IMSK); +} + +static void +mask_and_ack_intreq_irq(unsigned int irq) +{ + disable_intreq_irq(irq); +} + +static unsigned int +startup_intreq_irq(unsigned int irq) +{ + enable_intreq_irq(irq); + return 0; +} + +static void +shutdown_intreq_irq(unsigned int irq) +{ + disable_intreq_irq(irq); +} + +static void +end_intreq_irq(unsigned int irq) +{ + if (!(irq_desc[irq].status & (IRQ_DISABLED | IRQ_INPROGRESS))) + enable_intreq_irq(irq); +} + +static struct hw_interrupt_type intreq_irq_type = { + .typename = "FPGA-IRQ", + .startup = startup_intreq_irq, + .shutdown = shutdown_intreq_irq, + .enable = enable_intreq_irq, + .disable = disable_intreq_irq, + .ack = mask_and_ack_intreq_irq, + .end = end_intreq_irq +}; + +static void +make_intreq_irq(unsigned int irq) +{ + disable_irq_nosync(irq); + irq_desc[irq].handler = &intreq_irq_type; + disable_intreq_irq(irq); +} + +int +shmse_irq_demux(int irq) +{ + int bit; + volatile u16 val; + + if (irq == IRQ5_IRQ) { + /* Read status Register */ + val = ctrl_inw(PA_CPLD_ST); + bit = ffs(val); + if (bit != 0) + return OFFCHIP_IRQ_BASE + bit - 1; + } + return irq; +} + +/* IRQ5 is multiplexed between the following sources: + * 1. PC Card socket + * 2. Extension slot + * 3. USB Controller + * 4. Serial Controller + * + * We configure IRQ5 as a cascade IRQ. + */ +static struct irqaction irq5 = { no_action, 0, CPU_MASK_NONE, "IRQ5-cascade", + NULL, NULL}; + +/* + * Initialize IRQ setting + */ +void __init +init_7343se_IRQ(void) +{ + /* Setup Multiplexed interrupts */ + ctrl_outw(8, PA_CPLD_MODESET); /* Set all CPLD interrupts to active + * low. + */ + /* Mask all CPLD controller interrupts */ + ctrl_outw(0x0fff, PA_CPLD_IMSK); + + /* PC Card interrupts */ + make_intreq_irq(PC_IRQ0); + make_intreq_irq(PC_IRQ1); + make_intreq_irq(PC_IRQ2); + make_intreq_irq(PC_IRQ3); + + /* Extension Slot Interrupts */ + make_intreq_irq(EXT_IRQ0); + make_intreq_irq(EXT_IRQ1); + make_intreq_irq(EXT_IRQ2); + make_intreq_irq(EXT_IRQ3); + + /* USB Controller interrupts */ + make_intreq_irq(USB_IRQ0); + make_intreq_irq(USB_IRQ1); + + /* Serial Controller interrupts */ + make_intreq_irq(UART_IRQ0); + make_intreq_irq(UART_IRQ1); + + /* Setup all external interrupts to be active low */ + ctrl_outw(0xaaaa, INTC_ICR1); + + make_ipr_irq(IRQ5_IRQ, IRQ5_IPR_ADDR+2, IRQ5_IPR_POS, IRQ5_PRIORITY); + setup_irq(IRQ5_IRQ, &irq5); + /* Set port control to use IRQ5 */ + *(u16 *)0xA4050108 &= ~0xc; + + make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY); + make_ipr_irq(VPU_IRQ, VPU_IPR_ADDR, VPU_IPR_POS, 8); + + ctrl_outb(0x0f, INTC_IMCR5); /* enable SCIF IRQ */ + + make_ipr_irq(DMTE0_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); + make_ipr_irq(DMTE1_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); + make_ipr_irq(DMTE2_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); + make_ipr_irq(DMTE3_IRQ, DMA1_IPR_ADDR, DMA1_IPR_POS, DMA1_PRIORITY); + make_ipr_irq(DMTE4_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY); + make_ipr_irq(DMTE5_IRQ, DMA2_IPR_ADDR, DMA2_IPR_POS, DMA2_PRIORITY); + + /* I2C block */ + make_ipr_irq(IIC0_ALI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY); + make_ipr_irq(IIC0_TACKI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, + IIC0_PRIORITY); + make_ipr_irq(IIC0_WAITI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, + IIC0_PRIORITY); + make_ipr_irq(IIC0_DTEI_IRQ, IIC0_IPR_ADDR, IIC0_IPR_POS, IIC0_PRIORITY); + + make_ipr_irq(IIC1_ALI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY); + make_ipr_irq(IIC1_TACKI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, + IIC1_PRIORITY); + make_ipr_irq(IIC1_WAITI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, + IIC1_PRIORITY); + make_ipr_irq(IIC1_DTEI_IRQ, IIC1_IPR_ADDR, IIC1_IPR_POS, IIC1_PRIORITY); + + /* SIOF */ + make_ipr_irq(SIOF0_IRQ, SIOF0_IPR_ADDR, SIOF0_IPR_POS, SIOF0_PRIORITY); + + /* SIU */ + make_ipr_irq(SIU_IRQ, SIU_IPR_ADDR, SIU_IPR_POS, SIU_PRIORITY); + + /* VIO interrupt */ + make_ipr_irq(CEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY); + make_ipr_irq(BEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY); + make_ipr_irq(VEU_IRQ, VIO_IPR_ADDR, VIO_IPR_POS, VIO_PRIORITY); + + /*MFI interrupt*/ + + make_ipr_irq(MFI_IRQ, MFI_IPR_ADDR, MFI_IPR_POS, MFI_PRIORITY); + + /* LCD controller */ + make_ipr_irq(LCDC_IRQ, LCDC_IPR_ADDR, LCDC_IPR_POS, LCDC_PRIORITY); + ctrl_outw(0x2000, PA_MRSHPC + 0x0c); /* mrshpc irq enable */ +}
diff --git a/arch/sh/boards/se/7343/led.c b/arch/sh/boards/se/7343/led.c new file mode 100644 index 0000000..6a439cf --- /dev/null +++ b/arch/sh/boards/se/7343/led.c
@@ -0,0 +1,46 @@ +/* + * arch/sh/boards/se/7343/led.c + * + */ + +#include <linux/config.h> +#include <linux/sched.h> +#include <asm/mach/se7343.h> + +/* Cycle the LED's in the clasic Knightrider/Sun pattern */ +void heartbeat_7343se(void) +{ + static unsigned int cnt = 0, period = 0; + volatile unsigned short *p = (volatile unsigned short *) PA_LED; + static unsigned bit = 0, up = 1; + + cnt += 1; + if (cnt < period) { + return; + } + + cnt = 0; + + /* Go through the points (roughly!): + * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110 + */ + period = 110 - ((300 << FSHIFT) / ((avenrun[0] / 5) + (3 << FSHIFT))); + + if (up) { + if (bit == 7) { + bit--; + up = 0; + } else { + bit++; + } + } else { + if (bit == 0) { + bit++; + up = 1; + } else { + bit--; + } + } + *p = 1 << (bit + LED_SHIFT); + +}
diff --git a/arch/sh/boards/se/7343/setup.c b/arch/sh/boards/se/7343/setup.c new file mode 100644 index 0000000..7873222 --- /dev/null +++ b/arch/sh/boards/se/7343/setup.c
@@ -0,0 +1,84 @@ +#include <linux/config.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <asm/machvec.h> +#include <asm/mach/se7343.h> +#include <asm/irq.h> + +void heartbeat_7343se(void); +void init_7343se_IRQ(void); + +static struct resource smc91x_resources[] = { + [0] = { + .start = 0x10000000, + .end = 0x1000000F, + .flags = IORESOURCE_MEM, + }, + [1] = { + /* + * shared with other devices via externel + * interrupt controller in FPGA... + */ + .start = EXT_IRQ2, + .end = EXT_IRQ2, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; + +static struct platform_device *smc91x_platform_devices[] __initdata = { + &smc91x_device, +}; + +static int __init sh7343se_devices_setup(void) +{ + return platform_add_devices(smc91x_platform_devices, + ARRAY_SIZE(smc91x_platform_devices)); +} + +static void __init sh7343se_setup(char **cmdline_p) +{ + device_initcall(sh7343se_devices_setup); +} + +/* + * The Machine Vector + */ +struct sh_machine_vector mv_7343se __initmv = { + .mv_name = "SolutionEngine 7343", + .mv_setup = sh7343se_setup, + .mv_nr_irqs = 108, + .mv_inb = sh7343se_inb, + .mv_inw = sh7343se_inw, + .mv_inl = sh7343se_inl, + .mv_outb = sh7343se_outb, + .mv_outw = sh7343se_outw, + .mv_outl = sh7343se_outl, + + .mv_inb_p = sh7343se_inb_p, + .mv_inw_p = sh7343se_inw, + .mv_inl_p = sh7343se_inl, + .mv_outb_p = sh7343se_outb_p, + .mv_outw_p = sh7343se_outw, + .mv_outl_p = sh7343se_outl, + + .mv_insb = sh7343se_insb, + .mv_insw = sh7343se_insw, + .mv_insl = sh7343se_insl, + .mv_outsb = sh7343se_outsb, + .mv_outsw = sh7343se_outsw, + .mv_outsl = sh7343se_outsl, + + .mv_init_irq = init_7343se_IRQ, + .mv_irq_demux = shmse_irq_demux, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_7343se, +#endif +}; +ALIAS_MV(7343se)
diff --git a/arch/sh/boards/se/770x/Makefile b/arch/sh/boards/se/770x/Makefile index be89a73..9a5035f 100644 --- a/arch/sh/boards/se/770x/Makefile +++ b/arch/sh/boards/se/770x/Makefile
@@ -2,5 +2,5 @@ # Makefile for the 770x SolutionEngine specific parts of the kernel # -obj-y := mach.o setup.o io.o irq.o led.o - +obj-y := setup.o io.o irq.o +obj-$(CONFIG_HEARTBEAT) += led.o
diff --git a/arch/sh/boards/se/770x/io.c b/arch/sh/boards/se/770x/io.c index 9a39ee9..9941949 100644 --- a/arch/sh/boards/se/770x/io.c +++ b/arch/sh/boards/se/770x/io.c
@@ -1,4 +1,4 @@ -/* $Id: io.c,v 1.5 2004/02/22 23:08:43 kkojima Exp $ +/* $Id: io.c,v 1.7 2006/02/05 21:55:29 lethal Exp $ * * linux/arch/sh/kernel/io_se.c * @@ -11,7 +11,7 @@ #include <linux/kernel.h> #include <linux/types.h> #include <asm/io.h> -#include <asm/se/se.h> +#include <asm/se.h> /* SH pcmcia io window base, start and end. */ int sh_pcic_io_wbase = 0xb8400000; @@ -20,11 +20,6 @@ int sh_pcic_io_type; int sh_pcic_io_dummy; -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - /* MS7750 requires special versions of in*, out* routines, since PC-like io ports are located at upper half byte of 16-bit word which can be accessed only with 16-bit wide. */ @@ -52,10 +47,6 @@ return 1; } -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - unsigned char se_inb(unsigned long port) { if (sh_pcic_io_start <= port && port <= sh_pcic_io_stop) @@ -76,7 +67,7 @@ v = (*port2adr(port) >> 8); else v = (*port2adr(port))&0xff; - delay(); + ctrl_delay(); return v; } @@ -86,13 +77,13 @@ (sh_pcic_io_start <= port && port <= sh_pcic_io_stop)) return *port2adr(port); else - maybebadio(inw, port); + maybebadio(port); return 0; } unsigned int se_inl(unsigned long port) { - maybebadio(inl, port); + maybebadio(port); return 0; } @@ -114,7 +105,7 @@ *(port2adr(port)) = value << 8; else *(port2adr(port)) = value; - delay(); + ctrl_delay(); } void se_outw(unsigned short value, unsigned long port) @@ -123,12 +114,12 @@ (sh_pcic_io_start <= port && port <= sh_pcic_io_stop)) *port2adr(port) = value; else - maybebadio(outw, port); + maybebadio(port); } void se_outl(unsigned int value, unsigned long port) { - maybebadio(outl, port); + maybebadio(port); } void se_insb(unsigned long port, void *addr, unsigned long count) @@ -159,7 +150,7 @@ void se_insl(unsigned long port, void *addr, unsigned long count) { - maybebadio(insl, port); + maybebadio(port); } void se_outsb(unsigned long port, const void *addr, unsigned long count) @@ -190,37 +181,5 @@ void se_outsl(unsigned long port, const void *addr, unsigned long count) { - maybebadio(outsw, port); -} - -/* Map ISA bus address to the real address. Only for PCMCIA. */ - -/* ISA page descriptor. */ -static __u32 sh_isa_memmap[256]; - -static int -sh_isa_mmap(__u32 start, __u32 length, __u32 offset) -{ - int idx; - - if (start >= 0x100000 || (start & 0xfff) || (length != 0x1000)) - return -1; - - idx = start >> 12; - sh_isa_memmap[idx] = 0xb8000000 + (offset &~ 0xfff); -#if 0 - printk("sh_isa_mmap: start %x len %x offset %x (idx %x paddr %x)\n", - start, length, offset, idx, sh_isa_memmap[idx]); -#endif - return 0; -} - -unsigned long -se_isa_port2addr(unsigned long offset) -{ - int idx; - - idx = (offset >> 12) & 0xff; - offset &= 0xfff; - return sh_isa_memmap[idx] + offset; + maybebadio(port); }
diff --git a/arch/sh/boards/se/770x/irq.c b/arch/sh/boards/se/770x/irq.c index 3e55871..cff6700 100644 --- a/arch/sh/boards/se/770x/irq.c +++ b/arch/sh/boards/se/770x/irq.c
@@ -11,7 +11,7 @@ #include <linux/irq.h> #include <asm/irq.h> #include <asm/io.h> -#include <asm/se/se.h> +#include <asm/se.h> /* * Initialize IRQ setting
diff --git a/arch/sh/boards/se/770x/led.c b/arch/sh/boards/se/770x/led.c index 3cddbda..daf7b1e 100644 --- a/arch/sh/boards/se/770x/led.c +++ b/arch/sh/boards/se/770x/led.c
@@ -9,22 +9,8 @@ * This file contains Solution Engine specific LED code. */ -#include <asm/se/se.h> - -static void mach_led(int position, int value) -{ - volatile unsigned short* p = (volatile unsigned short*)PA_LED; - - if (value) { - *p |= (1<<8); - } else { - *p &= ~(1<<8); - } -} - -#ifdef CONFIG_HEARTBEAT - #include <linux/sched.h> +#include <asm/se.h> /* Cycle the LED's in the clasic Knightrider/Sun pattern */ void heartbeat_se(void) @@ -64,4 +50,3 @@ *p = 1<<(bit+8); } -#endif /* CONFIG_HEARTBEAT */
diff --git a/arch/sh/boards/se/770x/mach.c b/arch/sh/boards/se/770x/mach.c deleted file mode 100644 index 6ec07bd..0000000 --- a/arch/sh/boards/se/770x/mach.c +++ /dev/null
@@ -1,67 +0,0 @@ -/* - * linux/arch/sh/kernel/mach_se.c - * - * Copyright (C) 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Machine vector for the Hitachi SolutionEngine - */ - -#include <linux/init.h> - -#include <asm/machvec.h> -#include <asm/rtc.h> -#include <asm/machvec_init.h> - -#include <asm/se/io.h> - -void heartbeat_se(void); -void setup_se(void); -void init_se_IRQ(void); - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_se __initmv = { -#if defined(CONFIG_CPU_SH4) - .mv_nr_irqs = 48, -#elif defined(CONFIG_CPU_SUBTYPE_SH7708) - .mv_nr_irqs = 32, -#elif defined(CONFIG_CPU_SUBTYPE_SH7709) - .mv_nr_irqs = 61, -#elif defined(CONFIG_CPU_SUBTYPE_SH7705) - .mv_nr_irqs = 86, -#endif - - .mv_inb = se_inb, - .mv_inw = se_inw, - .mv_inl = se_inl, - .mv_outb = se_outb, - .mv_outw = se_outw, - .mv_outl = se_outl, - - .mv_inb_p = se_inb_p, - .mv_inw_p = se_inw, - .mv_inl_p = se_inl, - .mv_outb_p = se_outb_p, - .mv_outw_p = se_outw, - .mv_outl_p = se_outl, - - .mv_insb = se_insb, - .mv_insw = se_insw, - .mv_insl = se_insl, - .mv_outsb = se_outsb, - .mv_outsw = se_outsw, - .mv_outsl = se_outsl, - - .mv_isa_port2addr = se_isa_port2addr, - - .mv_init_irq = init_se_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_se, -#endif -}; -ALIAS_MV(se)
diff --git a/arch/sh/boards/se/770x/setup.c b/arch/sh/boards/se/770x/setup.c index 7d1a071..f3f82b7 100644 --- a/arch/sh/boards/se/770x/setup.c +++ b/arch/sh/boards/se/770x/setup.c
@@ -7,15 +7,17 @@ * Hitachi SolutionEngine Support. * */ - #include <linux/init.h> #include <linux/irq.h> - #include <linux/hdreg.h> #include <linux/ide.h> #include <asm/io.h> -#include <asm/se/se.h> -#include <asm/se/smc37c93x.h> +#include <asm/se.h> +#include <asm/smc37c93x.h> +#include <asm/machvec.h> + +void heartbeat_se(void); +void init_se_IRQ(void); /* * Configure the Super I/O chip @@ -26,7 +28,8 @@ outb_p(data, DATA_PORT); } -static void __init init_smsc(void) +/* XXX: Another candidate for a more generic cchip machine vector */ +static void __init smsc_setup(char **cmdline_p) { outb_p(CONFIG_ENTER, CONFIG_PORT); outb_p(CONFIG_ENTER, CONFIG_PORT); @@ -69,16 +72,46 @@ outb_p(CONFIG_EXIT, CONFIG_PORT); } -const char *get_system_type(void) -{ - return "SolutionEngine"; -} - /* - * Initialize the board + * The Machine Vector */ -void __init platform_setup(void) -{ - init_smsc(); - /* XXX: RTC setting comes here */ -} +struct sh_machine_vector mv_se __initmv = { + .mv_name = "SolutionEngine", + .mv_setup = smsc_setup, +#if defined(CONFIG_CPU_SH4) + .mv_nr_irqs = 48, +#elif defined(CONFIG_CPU_SUBTYPE_SH7708) + .mv_nr_irqs = 32, +#elif defined(CONFIG_CPU_SUBTYPE_SH7709) + .mv_nr_irqs = 61, +#elif defined(CONFIG_CPU_SUBTYPE_SH7705) + .mv_nr_irqs = 86, +#endif + + .mv_inb = se_inb, + .mv_inw = se_inw, + .mv_inl = se_inl, + .mv_outb = se_outb, + .mv_outw = se_outw, + .mv_outl = se_outl, + + .mv_inb_p = se_inb_p, + .mv_inw_p = se_inw, + .mv_inl_p = se_inl, + .mv_outb_p = se_outb_p, + .mv_outw_p = se_outw, + .mv_outl_p = se_outl, + + .mv_insb = se_insb, + .mv_insw = se_insw, + .mv_insl = se_insl, + .mv_outsb = se_outsb, + .mv_outsw = se_outsw, + .mv_outsl = se_outsl, + + .mv_init_irq = init_se_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_se, +#endif +}; +ALIAS_MV(se)
diff --git a/arch/sh/boards/se/7751/Makefile b/arch/sh/boards/se/7751/Makefile index ce7ca24..188900c 100644 --- a/arch/sh/boards/se/7751/Makefile +++ b/arch/sh/boards/se/7751/Makefile
@@ -2,7 +2,7 @@ # Makefile for the 7751 SolutionEngine specific parts of the kernel # -obj-y := mach.o setup.o io.o irq.o led.o +obj-y := setup.o io.o irq.o obj-$(CONFIG_PCI) += pci.o - +obj-$(CONFIG_HEARTBEAT) += led.o
diff --git a/arch/sh/boards/se/7751/io.c b/arch/sh/boards/se/7751/io.c index 99041b2..e8d846c 100644 --- a/arch/sh/boards/se/7751/io.c +++ b/arch/sh/boards/se/7751/io.c
@@ -1,6 +1,4 @@ -/* - * linux/arch/sh/kernel/io_7751se.c - * +/* * Copyright (C) 2001 Ian da Silva, Jeremy Siegel * Based largely on io_se.c. * @@ -10,96 +8,21 @@ * placeholder code from io_se.c left in with the * expectation of later SuperIO and PCMCIA access. */ - #include <linux/kernel.h> #include <linux/types.h> +#include <linux/pci.h> #include <asm/io.h> -#include <asm/se7751/se7751.h> +#include <asm/se7751.h> #include <asm/addrspace.h> -#include <linux/pci.h> -#include "../../../drivers/pci/pci-sh7751.h" - -#if 0 -/****************************************************************** - * Variables from io_se.c, related to PCMCIA (not PCI); we're not - * compiling them in, and have removed references from functions - * which follow. [Many checked for IO ports in the range bounded - * by sh_pcic_io_start/stop, and used sh_pcic_io_wbase as offset. - * As start/stop are uninitialized, only port 0x0 would match?] - * When used, remember to adjust names to avoid clash with io_se? - *****************************************************************/ -/* SH pcmcia io window base, start and end. */ -int sh_pcic_io_wbase = 0xb8400000; -int sh_pcic_io_start; -int sh_pcic_io_stop; -int sh_pcic_io_type; -int sh_pcic_io_dummy; -/*************************************************************/ -#endif - -/* - * The 7751 Solution Engine uses the built-in PCI controller (PCIC) - * of the 7751 processor, and has a SuperIO accessible via the PCI. - * The board also includes a PCMCIA controller on its memory bus, - * like the other Solution Engine boards. - */ - -#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) -#define PCI_IO_AREA SH7751_PCI_IO_BASE -#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE - -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) - -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - -static inline volatile __u16 * -port2adr(unsigned int port) +static inline volatile u16 *port2adr(unsigned int port) { if (port >= 0x2000) return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000)); -#if 0 - else - return (volatile __u16 *) (PA_SUPERIO + (port << 1)); -#endif - maybebadio(name,(unsigned long)port); + maybebadio((unsigned long)port); return (volatile __u16*)port; } -#if 0 -/* The 7751 Solution Engine seems to have everything hooked */ -/* up pretty normally (nothing on high-bytes only...) so this */ -/* shouldn't be needed */ -static inline int -shifted_port(unsigned long port) -{ - /* For IDE registers, value is not shifted */ - if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6) - return 0; - else - return 1; -} -#endif - -/* In case someone configures the kernel w/o PCI support: in that */ -/* scenario, don't ever bother to check for PCI-window addresses */ - -/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ -#if defined(CONFIG_PCI) -#define CHECK_SH7751_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) -#else -#define CHECK_SH7751_PCIIO(port) (0) -#endif - /* * General outline: remap really low stuff [eventually] to SuperIO, * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) @@ -111,10 +34,10 @@ { if (PXSEG(port)) return *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned char *)pci_ioaddr(port); else - return (*port2adr(port))&0xff; + return (*port2adr(port)) & 0xff; } unsigned char sh7751se_inb_p(unsigned long port) @@ -123,11 +46,11 @@ if (PXSEG(port)) v = *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) - v = *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + v = *(volatile unsigned char *)pci_ioaddr(port); else - v = (*port2adr(port))&0xff; - delay(); + v = (*port2adr(port)) & 0xff; + ctrl_delay(); return v; } @@ -135,12 +58,12 @@ { if (PXSEG(port)) return *(volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned short *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned short *)pci_ioaddr(port); else if (port >= 0x2000) return *port2adr(port); else - maybebadio(inw, port); + maybebadio(port); return 0; } @@ -148,12 +71,12 @@ { if (PXSEG(port)) return *(volatile unsigned long *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned int *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned int *)pci_ioaddr(port); else if (port >= 0x2000) return *port2adr(port); else - maybebadio(inl, port); + maybebadio(port); return 0; } @@ -162,8 +85,8 @@ if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned char*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; else *(port2adr(port)) = value; } @@ -172,73 +95,41 @@ { if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned char*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; else *(port2adr(port)) = value; - delay(); + ctrl_delay(); } void sh7751se_outw(unsigned short value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned short *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned short *)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned short *)pci_ioaddr(port)) = value; else if (port >= 0x2000) *port2adr(port) = value; else - maybebadio(outw, port); + maybebadio(port); } void sh7751se_outl(unsigned int value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned long *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned long*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned long*)pci_ioaddr(port)) = value; else - maybebadio(outl, port); + maybebadio(port); } void sh7751se_insl(unsigned long port, void *addr, unsigned long count) { - maybebadio(insl, port); + maybebadio(port); } void sh7751se_outsl(unsigned long port, const void *addr, unsigned long count) { - maybebadio(outsw, port); -} - -/* Map ISA bus address to the real address. Only for PCMCIA. */ - -/* ISA page descriptor. */ -static __u32 sh_isa_memmap[256]; - -#if 0 -static int -sh_isa_mmap(__u32 start, __u32 length, __u32 offset) -{ - int idx; - - if (start >= 0x100000 || (start & 0xfff) || (length != 0x1000)) - return -1; - - idx = start >> 12; - sh_isa_memmap[idx] = 0xb8000000 + (offset &~ 0xfff); - printk("sh_isa_mmap: start %x len %x offset %x (idx %x paddr %x)\n", - start, length, offset, idx, sh_isa_memmap[idx]); - return 0; -} -#endif - -unsigned long -sh7751se_isa_port2addr(unsigned long offset) -{ - int idx; - - idx = (offset >> 12) & 0xff; - offset &= 0xfff; - return sh_isa_memmap[idx] + offset; + maybebadio(port); }
diff --git a/arch/sh/boards/se/7751/irq.c b/arch/sh/boards/se/7751/irq.c index bf6c023..c607b0a 100644 --- a/arch/sh/boards/se/7751/irq.c +++ b/arch/sh/boards/se/7751/irq.c
@@ -12,7 +12,7 @@ #include <linux/init.h> #include <linux/irq.h> #include <asm/irq.h> -#include <asm/se7751/se7751.h> +#include <asm/se7751.h> /* * Initialize IRQ setting
diff --git a/arch/sh/boards/se/7751/led.c b/arch/sh/boards/se/7751/led.c index a878726..ff0355d 100644 --- a/arch/sh/boards/se/7751/led.c +++ b/arch/sh/boards/se/7751/led.c
@@ -8,23 +8,8 @@ * * This file contains Solution Engine specific LED code. */ - -#include <asm/se7751/se7751.h> - -static void mach_led(int position, int value) -{ - volatile unsigned short* p = (volatile unsigned short*)PA_LED; - - if (value) { - *p |= (1<<8); - } else { - *p &= ~(1<<8); - } -} - -#ifdef CONFIG_HEARTBEAT - #include <linux/sched.h> +#include <asm/se7751.h> /* Cycle the LED's in the clasic Knightrider/Sun pattern */ void heartbeat_7751se(void) @@ -64,4 +49,3 @@ *p = 1<<(bit+8); } -#endif /* CONFIG_HEARTBEAT */
diff --git a/arch/sh/boards/se/7751/mach.c b/arch/sh/boards/se/7751/mach.c deleted file mode 100644 index 62d8d3e..0000000 --- a/arch/sh/boards/se/7751/mach.c +++ /dev/null
@@ -1,54 +0,0 @@ -/* - * linux/arch/sh/kernel/mach_7751se.c - * - * Minor tweak of mach_se.c file to reference 7751se-specific items. - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Machine vector for the Hitachi 7751 SolutionEngine - */ - -#include <linux/init.h> - -#include <asm/machvec.h> -#include <asm/rtc.h> -#include <asm/machvec_init.h> - -#include <asm/se7751/io.h> - -void heartbeat_7751se(void); -void init_7751se_IRQ(void); - -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_7751se __initmv = { - .mv_nr_irqs = 72, - - .mv_inb = sh7751se_inb, - .mv_inw = sh7751se_inw, - .mv_inl = sh7751se_inl, - .mv_outb = sh7751se_outb, - .mv_outw = sh7751se_outw, - .mv_outl = sh7751se_outl, - - .mv_inb_p = sh7751se_inb_p, - .mv_inw_p = sh7751se_inw, - .mv_inl_p = sh7751se_inl, - .mv_outb_p = sh7751se_outb_p, - .mv_outw_p = sh7751se_outw, - .mv_outl_p = sh7751se_outl, - - .mv_insl = sh7751se_insl, - .mv_outsl = sh7751se_outsl, - - .mv_isa_port2addr = sh7751se_isa_port2addr, - - .mv_init_irq = init_7751se_IRQ, -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = heartbeat_7751se, -#endif -}; -ALIAS_MV(7751se)
diff --git a/arch/sh/boards/se/7751/setup.c b/arch/sh/boards/se/7751/setup.c index 48dc5ae..73e8263 100644 --- a/arch/sh/boards/se/7751/setup.c +++ b/arch/sh/boards/se/7751/setup.c
@@ -1,4 +1,4 @@ -/* +/* * linux/arch/sh/kernel/setup_7751se.c * * Copyright (C) 2000 Kazumoto Kojima @@ -11,78 +11,15 @@ #include <linux/init.h> #include <linux/irq.h> - -#include <linux/hdreg.h> #include <linux/ide.h> #include <asm/io.h> -#include <asm/se7751/se7751.h> +#include <asm/se7751.h> + +void heartbeat_7751se(void); +void init_7751se_IRQ(void); #ifdef CONFIG_SH_KGDB #include <asm/kgdb.h> -#endif - -/* - * Configure the Super I/O chip - */ -#if 0 -/* Leftover code from regular Solution Engine, for reference. */ -/* The SH7751 Solution Engine has a different SuperIO. */ -static void __init smsc_config(int index, int data) -{ - outb_p(index, INDEX_PORT); - outb_p(data, DATA_PORT); -} - -static void __init init_smsc(void) -{ - outb_p(CONFIG_ENTER, CONFIG_PORT); - outb_p(CONFIG_ENTER, CONFIG_PORT); - - /* FDC */ - smsc_config(CURRENT_LDN_INDEX, LDN_FDC); - smsc_config(ACTIVATE_INDEX, 0x01); - smsc_config(IRQ_SELECT_INDEX, 6); /* IRQ6 */ - - /* IDE1 */ - smsc_config(CURRENT_LDN_INDEX, LDN_IDE1); - smsc_config(ACTIVATE_INDEX, 0x01); - smsc_config(IRQ_SELECT_INDEX, 14); /* IRQ14 */ - - /* AUXIO (GPIO): to use IDE1 */ - smsc_config(CURRENT_LDN_INDEX, LDN_AUXIO); - smsc_config(GPIO46_INDEX, 0x00); /* nIOROP */ - smsc_config(GPIO47_INDEX, 0x00); /* nIOWOP */ - - /* COM1 */ - smsc_config(CURRENT_LDN_INDEX, LDN_COM1); - smsc_config(ACTIVATE_INDEX, 0x01); - smsc_config(IO_BASE_HI_INDEX, 0x03); - smsc_config(IO_BASE_LO_INDEX, 0xf8); - smsc_config(IRQ_SELECT_INDEX, 4); /* IRQ4 */ - - /* COM2 */ - smsc_config(CURRENT_LDN_INDEX, LDN_COM2); - smsc_config(ACTIVATE_INDEX, 0x01); - smsc_config(IO_BASE_HI_INDEX, 0x02); - smsc_config(IO_BASE_LO_INDEX, 0xf8); - smsc_config(IRQ_SELECT_INDEX, 3); /* IRQ3 */ - - /* RTC */ - smsc_config(CURRENT_LDN_INDEX, LDN_RTC); - smsc_config(ACTIVATE_INDEX, 0x01); - smsc_config(IRQ_SELECT_INDEX, 8); /* IRQ8 */ - - /* XXX: PARPORT, KBD, and MOUSE will come here... */ - outb_p(CONFIG_EXIT, CONFIG_PORT); -} -#endif - -const char *get_system_type(void) -{ - return "7751 SolutionEngine"; -} - -#ifdef CONFIG_SH_KGDB static int kgdb_uart_setup(void); static struct kgdb_sermap kgdb_uart_sermap = { "ttyS", 0, kgdb_uart_setup, NULL }; @@ -91,7 +28,7 @@ /* * Initialize the board */ -void __init platform_setup(void) +static void __init sh7751se_setup(char **cmdline_p) { /* Call init_smsc() replacement to set up SuperIO. */ /* XXX: RTC setting comes here */ @@ -225,3 +162,37 @@ return 0; } #endif /* CONFIG_SH_KGDB */ + + +/* + * The Machine Vector + */ + +struct sh_machine_vector mv_7751se __initmv = { + .mv_name = "7751 SolutionEngine", + .mv_setup = sh7751se_setup, + .mv_nr_irqs = 72, + + .mv_inb = sh7751se_inb, + .mv_inw = sh7751se_inw, + .mv_inl = sh7751se_inl, + .mv_outb = sh7751se_outb, + .mv_outw = sh7751se_outw, + .mv_outl = sh7751se_outl, + + .mv_inb_p = sh7751se_inb_p, + .mv_inw_p = sh7751se_inw, + .mv_inl_p = sh7751se_inl, + .mv_outb_p = sh7751se_outb_p, + .mv_outw_p = sh7751se_outw, + .mv_outl_p = sh7751se_outl, + + .mv_insl = sh7751se_insl, + .mv_outsl = sh7751se_outsl, + + .mv_init_irq = init_7751se_IRQ, +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = heartbeat_7751se, +#endif +}; +ALIAS_MV(7751se)
diff --git a/arch/sh/boards/sh03/rtc.c b/arch/sh/boards/sh03/rtc.c index d609863..0a9266b 100644 --- a/arch/sh/boards/sh03/rtc.c +++ b/arch/sh/boards/sh03/rtc.c
@@ -10,9 +10,10 @@ #include <linux/sched.h> #include <linux/time.h> #include <linux/bcd.h> -#include <asm/io.h> #include <linux/rtc.h> #include <linux/spinlock.h> +#include <asm/io.h> +#include <asm/rtc.h> #define RTC_BASE 0xb0000000 #define RTC_SEC1 (RTC_BASE + 0) @@ -34,8 +35,6 @@ #define RTC_BUSY 1 #define RTC_STOP 2 -extern void (*rtc_get_time)(struct timespec *); -extern int (*rtc_set_time)(const time_t); extern spinlock_t rtc_lock; unsigned long get_cmos_time(void) @@ -128,6 +127,6 @@ void sh03_time_init(void) { - rtc_get_time = sh03_rtc_gettimeofday; - rtc_set_time = sh03_rtc_settimeofday; + rtc_sh_get_time = sh03_rtc_gettimeofday; + rtc_sh_set_time = sh03_rtc_settimeofday; }
diff --git a/arch/sh/boards/sh03/setup.c b/arch/sh/boards/sh03/setup.c index 60290f8..6c31058 100644 --- a/arch/sh/boards/sh03/setup.c +++ b/arch/sh/boards/sh03/setup.c
@@ -7,22 +7,13 @@ #include <linux/init.h> #include <linux/irq.h> -#include <linux/hdreg.h> -#include <linux/ide.h> #include <asm/io.h> +#include <asm/rtc.h> #include <asm/sh03/io.h> #include <asm/sh03/sh03.h> #include <asm/addrspace.h> -#include "../../drivers/pci/pci-sh7751.h" -extern void (*board_time_init)(void); - -const char *get_system_type(void) -{ - return "Interface CTP/PCI-SH03)"; -} - -void init_sh03_IRQ(void) +static void __init init_sh03_IRQ(void) { ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR); @@ -34,38 +25,34 @@ extern void *cf_io_base; -unsigned long sh03_isa_port2addr(unsigned long port) +static void __iomem *sh03_ioport_map(unsigned long port, unsigned int size) { if (PXSEG(port)) - return port; + return (void __iomem *)port; /* CompactFlash (IDE) */ - if (((port >= 0x1f0) && (port <= 0x1f7)) || (port == 0x3f6)) { - return (unsigned long)cf_io_base + port; - } - return port + SH7751_PCI_IO_BASE; + if (((port >= 0x1f0) && (port <= 0x1f7)) || (port == 0x3f6)) + return (void __iomem *)((unsigned long)cf_io_base + port); + + return (void __iomem *)(port + PCI_IO_BASE); } -/* - * The Machine Vector - */ +/* arch/sh/boards/sh03/rtc.c */ +void sh03_time_init(void); + +static void __init sh03_setup(char **cmdline_p) +{ + board_time_init = sh03_time_init; +} struct sh_machine_vector mv_sh03 __initmv = { + .mv_name = "Interface (CTP/PCI-SH03)", + .mv_setup = sh03_setup, .mv_nr_irqs = 48, - .mv_isa_port2addr = sh03_isa_port2addr, + .mv_ioport_map = sh03_ioport_map, .mv_init_irq = init_sh03_IRQ, #ifdef CONFIG_HEARTBEAT .mv_heartbeat = heartbeat_sh03, #endif }; - ALIAS_MV(sh03) - -/* arch/sh/boards/sh03/rtc.c */ -void sh03_time_init(void); - -int __init platform_setup(void) -{ - board_time_init = sh03_time_init; - return 0; -}
diff --git a/arch/sh/boards/sh2000/Makefile b/arch/sh/boards/sh2000/Makefile deleted file mode 100644 index 05d390c..0000000 --- a/arch/sh/boards/sh2000/Makefile +++ /dev/null
@@ -1,6 +0,0 @@ -# -# Makefile for the SH2000 specific parts of the kernel -# - -obj-y := setup.o -
diff --git a/arch/sh/boards/sh2000/setup.c b/arch/sh/boards/sh2000/setup.c deleted file mode 100644 index 2fe6a11..0000000 --- a/arch/sh/boards/sh2000/setup.c +++ /dev/null
@@ -1,70 +0,0 @@ -/* - * linux/arch/sh/kernel/setup_sh2000.c - * - * Copyright (C) 2001 SUGIOKA Tochinobu - * - * SH-2000 Support. - * - */ - -#include <linux/init.h> -#include <linux/irq.h> - -#include <asm/io.h> -#include <asm/machvec.h> -#include <asm/mach/sh2000.h> - -#define CF_CIS_BASE 0xb4200000 - -#define PORT_PECR 0xa4000108 -#define PORT_PHCR 0xa400010E -#define PORT_ICR1 0xa4000010 -#define PORT_IRR0 0xa4000004 - -#define IDE_OFFSET 0xb6200000 -#define NIC_OFFSET 0xb6000000 -#define EXTBUS_OFFSET 0xba000000 - - -const char *get_system_type(void) -{ - return "sh2000"; -} - -static unsigned long sh2000_isa_port2addr(unsigned long offset) -{ - if((offset & ~7) == 0x1f0 || offset == 0x3f6) - return IDE_OFFSET + offset; - else if((offset & ~0x1f) == 0x300) - return NIC_OFFSET + offset; - return EXTBUS_OFFSET + offset; -} - -/* - * The Machine Vector - */ -struct sh_machine_vector mv_sh2000 __initmv = { - .mv_nr_irqs = 80, - .mv_isa_port2addr = sh2000_isa_port2addr, -}; -ALIAS_MV(sh2000) - -/* - * Initialize the board - */ -int __init platform_setup(void) -{ - /* XXX: RTC setting comes here */ - - /* These should be done by BIOS/IPL ... */ - /* Enable nCE2A, nCE2B output */ - ctrl_outw(ctrl_inw(PORT_PECR) & ~0xf00, PORT_PECR); - /* Enable the Compact Flash card, and set the level interrupt */ - ctrl_outw(0x0042, CF_CIS_BASE+0x0200); - /* Enable interrupt */ - ctrl_outw(ctrl_inw(PORT_PHCR) & ~0x03f3, PORT_PHCR); - ctrl_outw(1, PORT_ICR1); - ctrl_outw(ctrl_inw(PORT_IRR0) & ~0xff3f, PORT_IRR0); - printk(KERN_INFO "SH-2000 Setup...done\n"); - return 0; -}
diff --git a/arch/sh/boards/shmin/Makefile b/arch/sh/boards/shmin/Makefile new file mode 100644 index 0000000..3190cc7 --- /dev/null +++ b/arch/sh/boards/shmin/Makefile
@@ -0,0 +1,5 @@ +# +# Makefile for the SHMIN board. +# + +obj-y := setup.o
diff --git a/arch/sh/boards/shmin/setup.c b/arch/sh/boards/shmin/setup.c new file mode 100644 index 0000000..2f0c197 --- /dev/null +++ b/arch/sh/boards/shmin/setup.c
@@ -0,0 +1,41 @@ +/* + * arch/sh/boards/shmin/setup.c + * + * Copyright (C) 2006 Takashi YOSHII + * + * SHMIN Support. + */ +#include <linux/init.h> +#include <asm/machvec.h> +#include <asm/shmin/shmin.h> +#include <asm/clock.h> +#include <asm/irq.h> +#include <asm/io.h> + +#define PFC_PHCR 0xa400010e + +static void __init init_shmin_irq(void) +{ + ctrl_outw(0x2a00, PFC_PHCR); // IRQ0-3=IRQ + ctrl_outw(0x0aaa, INTC_ICR1); // IRQ0-3=IRQ-mode,Low-active. +} + +static void __iomem *shmin_ioport_map(unsigned long port, unsigned int size) +{ + static int dummy; + + if ((port & ~0x1f) == SHMIN_NE_BASE) + return (void __iomem *)(SHMIN_IO_BASE + port); + + dummy = 0; + + return &dummy; + +} + +struct sh_machine_vector mv_shmin __initmv = { + .mv_name = "SHMIN", + .mv_init_irq = init_shmin_irq, + .mv_ioport_map = shmin_ioport_map, +}; +ALIAS_MV(shmin)
diff --git a/arch/sh/boards/snapgear/io.c b/arch/sh/boards/snapgear/io.c index e2eb78f..0f48242 100644 --- a/arch/sh/boards/snapgear/io.c +++ b/arch/sh/boards/snapgear/io.c
@@ -1,6 +1,4 @@ -/* - * linux/arch/sh/kernel/io_7751se.c - * +/* * Copyright (C) 2002 David McCullough <davidm@snapgear.com> * Copyright (C) 2001 Ian da Silva, Jeremy Siegel * Based largely on io_se.c. @@ -11,67 +9,22 @@ * placeholder code from io_se.c left in with the * expectation of later SuperIO and PCMCIA access. */ - #include <linux/kernel.h> #include <linux/types.h> #include <linux/pci.h> #include <asm/io.h> #include <asm/addrspace.h> -#include <asm/pci.h> -#include "../../drivers/pci/pci-sh7751.h" - #ifdef CONFIG_SH_SECUREEDGE5410 unsigned short secureedge5410_ioport; #endif -/* - * The SnapGear uses the built-in PCI controller (PCIC) - * of the 7751 processor - */ - -#define PCIIOBR (volatile long *)PCI_REG(SH7751_PCIIOBR) -#define PCIMBR (volatile long *)PCI_REG(SH7751_PCIMBR) -#define PCI_IO_AREA SH7751_PCI_IO_BASE -#define PCI_MEM_AREA SH7751_PCI_CONFIG_BASE - - -#define PCI_IOMAP(adr) (PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK)) - - -#define maybebadio(name,port) \ - printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \ - #name, (port), (__u32) __builtin_return_address(0)) - - -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - - static inline volatile __u16 *port2adr(unsigned int port) { -#if 0 - if (port >= 0x2000) - return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000)); -#endif - maybebadio(name,(unsigned long)port); + maybebadio((unsigned long)port); return (volatile __u16*)port; } - -/* In case someone configures the kernel w/o PCI support: in that */ -/* scenario, don't ever bother to check for PCI-window addresses */ - -/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */ -#if defined(CONFIG_PCI) -#define CHECK_SH7751_PCIIO(port) \ - ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE))) -#else -#define CHECK_SH7751_PCIIO(port) (0) -#endif - /* * General outline: remap really low stuff [eventually] to SuperIO, * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO) @@ -79,148 +32,106 @@ * should be way beyond the window, and is used w/o translation for * compatibility. */ - unsigned char snapgear_inb(unsigned long port) { if (PXSEG(port)) return *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned char *)pci_ioaddr(port); else - return (*port2adr(port))&0xff; + return (*port2adr(port)) & 0xff; } - unsigned char snapgear_inb_p(unsigned long port) { unsigned char v; if (PXSEG(port)) v = *(volatile unsigned char *)port; - else if (CHECK_SH7751_PCIIO(port)) - v = *(volatile unsigned char *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + v = *(volatile unsigned char *)pci_ioaddr(port); else - v = (*port2adr(port))&0xff; - delay(); + v = (*port2adr(port))&0xff; + ctrl_delay(); return v; } - unsigned short snapgear_inw(unsigned long port) { if (PXSEG(port)) return *(volatile unsigned short *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned short *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned short *)pci_ioaddr(port); else if (port >= 0x2000) return *port2adr(port); else - maybebadio(inw, port); + maybebadio(port); return 0; } - unsigned int snapgear_inl(unsigned long port) { if (PXSEG(port)) return *(volatile unsigned long *)port; - else if (CHECK_SH7751_PCIIO(port)) - return *(volatile unsigned int *)PCI_IOMAP(port); + else if (is_pci_ioaddr(port)) + return *(volatile unsigned int *)pci_ioaddr(port); else if (port >= 0x2000) return *port2adr(port); else - maybebadio(inl, port); + maybebadio(port); return 0; } - void snapgear_outb(unsigned char value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned char*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; else *(port2adr(port)) = value; } - void snapgear_outb_p(unsigned char value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned char *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned char*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned char*)pci_ioaddr(port)) = value; else *(port2adr(port)) = value; - delay(); + ctrl_delay(); } - void snapgear_outw(unsigned short value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned short *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned short *)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned short *)pci_ioaddr(port)) = value; else if (port >= 0x2000) *port2adr(port) = value; else - maybebadio(outw, port); + maybebadio(port); } - void snapgear_outl(unsigned int value, unsigned long port) { if (PXSEG(port)) *(volatile unsigned long *)port = value; - else if (CHECK_SH7751_PCIIO(port)) - *((unsigned long*)PCI_IOMAP(port)) = value; + else if (is_pci_ioaddr(port)) + *((unsigned long*)pci_ioaddr(port)) = value; else - maybebadio(outl, port); + maybebadio(port); } void snapgear_insl(unsigned long port, void *addr, unsigned long count) { - maybebadio(insl, port); + maybebadio(port); } void snapgear_outsl(unsigned long port, const void *addr, unsigned long count) { - maybebadio(outsw, port); -} - -/* Map ISA bus address to the real address. Only for PCMCIA. */ - - -/* ISA page descriptor. */ -static __u32 sh_isa_memmap[256]; - - -#if 0 -static int sh_isa_mmap(__u32 start, __u32 length, __u32 offset) -{ - int idx; - - if (start >= 0x100000 || (start & 0xfff) || (length != 0x1000)) - return -1; - - idx = start >> 12; - sh_isa_memmap[idx] = 0xb8000000 + (offset &~ 0xfff); -#if 0 - printk("sh_isa_mmap: start %x len %x offset %x (idx %x paddr %x)\n", - start, length, offset, idx, sh_isa_memmap[idx]); -#endif - return 0; -} -#endif - -unsigned long snapgear_isa_port2addr(unsigned long offset) -{ - int idx; - - idx = (offset >> 12) & 0xff; - offset &= 0xfff; - return sh_isa_memmap[idx] + offset; + maybebadio(port); }
diff --git a/arch/sh/boards/snapgear/rtc.c b/arch/sh/boards/snapgear/rtc.c index b71e009..1659fdd 100644 --- a/arch/sh/boards/snapgear/rtc.c +++ b/arch/sh/boards/snapgear/rtc.c
@@ -17,14 +17,9 @@ #include <linux/time.h> #include <linux/rtc.h> #include <linux/mc146818rtc.h> - #include <asm/io.h> -#include <asm/rtc.h> -#include <asm/mc146818rtc.h> -/****************************************************************************/ - -static int use_ds1302 = 0; +static int use_ds1302; /****************************************************************************/ /* @@ -82,10 +77,6 @@ unsigned int val; unsigned long flags; -#if 0 - printk("SnapGear RTC: ds1302_readbyte(addr=%x)\n", addr); -#endif - local_irq_save(flags); set_dirp(get_dirp() | RTC_RESET | RTC_IODATA | RTC_SCLK); set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK)); @@ -104,10 +95,6 @@ { unsigned long flags; -#if 0 - printk("SnapGear RTC: ds1302_writebyte(addr=%x)\n", addr); -#endif - local_irq_save(flags); set_dirp(get_dirp() | RTC_RESET | RTC_IODATA | RTC_SCLK); set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK)); @@ -168,11 +155,8 @@ } if (use_ds1302) { - rtc_get_time = snapgear_rtc_gettimeofday; - rtc_set_time = snapgear_rtc_settimeofday; - } else { - rtc_get_time = sh_rtc_gettimeofday; - rtc_set_time = sh_rtc_settimeofday; + rtc_sh_get_time = snapgear_rtc_gettimeofday; + rtc_sh_set_time = snapgear_rtc_settimeofday; } printk("SnapGear RTC: using %s rtc.\n", use_ds1302 ? "ds1302" : "internal"); @@ -187,10 +171,8 @@ { unsigned int sec, min, hr, day, mon, yr; - if (!use_ds1302) { - sh_rtc_gettimeofday(ts); + if (!use_ds1302) return; - } sec = bcd2int(ds1302_readbyte(RTC_ADDR_SEC)); min = bcd2int(ds1302_readbyte(RTC_ADDR_MIN)); @@ -231,7 +213,7 @@ unsigned long nowtime; if (!use_ds1302) - return sh_rtc_settimeofday(secs); + return 0; /* * This is called direct from the kernel timer handling code. @@ -240,10 +222,6 @@ nowtime = secs; -#if 1 - printk("SnapGear RTC: snapgear_rtc_settimeofday(nowtime=%ld)\n", nowtime); -#endif - /* STOP RTC */ ds1302_writebyte(RTC_ADDR_SEC, ds1302_readbyte(RTC_ADDR_SEC) | 0x80); @@ -329,5 +307,3 @@ default: break; } } - -/****************************************************************************/
diff --git a/arch/sh/boards/snapgear/setup.c b/arch/sh/boards/snapgear/setup.c index f1f7c70..f5e98c5 100644 --- a/arch/sh/boards/snapgear/setup.c +++ b/arch/sh/boards/snapgear/setup.c
@@ -1,5 +1,4 @@ -/****************************************************************************/ -/* +/* * linux/arch/sh/boards/snapgear/setup.c * * Copyright (C) 2002 David McCullough <davidm@snapgear.com> @@ -12,8 +11,6 @@ * Modified for 7751 Solution Engine by * Ian da Silva and Jeremy Siegel, 2001. */ -/****************************************************************************/ - #include <linux/init.h> #include <linux/irq.h> #include <linux/interrupt.h> @@ -21,14 +18,13 @@ #include <linux/delay.h> #include <linux/module.h> #include <linux/sched.h> - #include <asm/machvec.h> -#include <asm/mach/io.h> +#include <asm/snapgear.h> #include <asm/irq.h> #include <asm/io.h> +#include <asm/rtc.h> #include <asm/cpu/timer.h> -extern void (*board_time_init)(void); extern void secureedge5410_rtc_init(void); extern void pcibios_init(void); @@ -85,101 +81,20 @@ make_ipr_irq(IRL3_IRQ, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY); } -/****************************************************************************/ /* - * Fast poll interrupt simulator. + * Initialize the board */ - -/* - * Leave all of the fast timer/fast poll stuff commented out for now, since - * it's not clear whether it actually works or not. Since it wasn't being used - * at all in 2.4, we'll assume it's not sane for 2.6 either.. -- PFM - */ -#if 0 -#define FAST_POLL 1000 -//#define FAST_POLL_INTR - -#define FASTTIMER_IRQ 17 -#define FASTTIMER_IPR_ADDR INTC_IPRA -#define FASTTIMER_IPR_POS 2 -#define FASTTIMER_PRIORITY 3 - -#ifdef FAST_POLL_INTR -#define TMU1_TCR_INIT 0x0020 -#else -#define TMU1_TCR_INIT 0 -#endif -#define TMU_TSTR_INIT 1 -#define TMU1_TCR_CALIB 0x0000 - - -#ifdef FAST_POLL_INTR -static void fast_timer_irq(int irq, void *dev_instance, struct pt_regs *regs) +static void __init snapgear_setup(char **cmdline_p) { - unsigned long timer_status; - timer_status = ctrl_inw(TMU1_TCR); - timer_status &= ~0x100; - ctrl_outw(timer_status, TMU1_TCR); -} -#endif - -/* - * return the current ticks on the fast timer - */ - -unsigned long fast_timer_count(void) -{ - return(ctrl_inl(TMU1_TCNT)); -} - -/* - * setup a fast timer for profiling etc etc - */ - -static void setup_fast_timer() -{ - unsigned long interval; - -#ifdef FAST_POLL_INTR - interval = (current_cpu_data.module_clock/4 + FAST_POLL/2) / FAST_POLL; - - make_ipr_irq(FASTTIMER_IRQ, FASTTIMER_IPR_ADDR, FASTTIMER_IPR_POS, - FASTTIMER_PRIORITY); - - printk("SnapGear: %dHz fast timer on IRQ %d\n",FAST_POLL,FASTTIMER_IRQ); - - if (request_irq(FASTTIMER_IRQ, fast_timer_irq, 0, "SnapGear fast timer", - NULL) != 0) - printk("%s(%d): request_irq() failed?\n", __FILE__, __LINE__); -#else - printk("SnapGear: fast timer running\n",FAST_POLL,FASTTIMER_IRQ); - interval = 0xffffffff; -#endif - - ctrl_outb(ctrl_inb(TMU_TSTR) & ~0x2, TMU_TSTR); /* disable timer 1 */ - ctrl_outw(TMU1_TCR_INIT, TMU1_TCR); - ctrl_outl(interval, TMU1_TCOR); - ctrl_outl(interval, TMU1_TCNT); - ctrl_outb(ctrl_inb(TMU_TSTR) | 0x2, TMU_TSTR); /* enable timer 1 */ - - printk("Timer count 1 = 0x%x\n", fast_timer_count()); - udelay(1000); - printk("Timer count 2 = 0x%x\n", fast_timer_count()); -} -#endif - -/****************************************************************************/ - -const char *get_system_type(void) -{ - return "SnapGear SecureEdge5410"; + board_time_init = secureedge5410_rtc_init; } /* * The Machine Vector */ - struct sh_machine_vector mv_snapgear __initmv = { + .mv_name = "SnapGear SecureEdge5410", + .mv_setup = snapgear_setup, .mv_nr_irqs = 72, .mv_inb = snapgear_inb, @@ -196,20 +111,6 @@ .mv_outw_p = snapgear_outw, .mv_outl_p = snapgear_outl, - .mv_isa_port2addr = snapgear_isa_port2addr, - .mv_init_irq = init_snapgear_IRQ, }; ALIAS_MV(snapgear) - -/* - * Initialize the board - */ - -int __init platform_setup(void) -{ - board_time_init = secureedge5410_rtc_init; - - return 0; -} -
diff --git a/arch/sh/boards/superh/microdev/irq.c b/arch/sh/boards/superh/microdev/irq.c index 236398f..8c64baa 100644 --- a/arch/sh/boards/superh/microdev/irq.c +++ b/arch/sh/boards/superh/microdev/irq.c
@@ -11,14 +11,12 @@ #include <linux/init.h> #include <linux/irq.h> - #include <asm/system.h> #include <asm/io.h> #include <asm/microdev.h> #define NUM_EXTERNAL_IRQS 16 /* IRL0 .. IRL15 */ - static const struct { unsigned char fpgaIrq; unsigned char mapped; @@ -93,53 +91,42 @@ static void disable_microdev_irq(unsigned int irq) { - unsigned int flags; unsigned int fpgaIrq; - if (irq >= NUM_EXTERNAL_IRQS) return; - if (!fpgaIrqTable[irq].mapped) return; + if (irq >= NUM_EXTERNAL_IRQS) + return; + if (!fpgaIrqTable[irq].mapped) + return; fpgaIrq = fpgaIrqTable[irq].fpgaIrq; - /* disable interrupts */ - local_irq_save(flags); - - /* disable interupts on the FPGA INTC register */ + /* disable interupts on the FPGA INTC register */ ctrl_outl(MICRODEV_FPGA_INTC_MASK(fpgaIrq), MICRODEV_FPGA_INTDSB_REG); - - /* restore interrupts */ - local_irq_restore(flags); } static void enable_microdev_irq(unsigned int irq) { unsigned long priorityReg, priorities, pri; - unsigned int flags; unsigned int fpgaIrq; - - if (irq >= NUM_EXTERNAL_IRQS) return; - if (!fpgaIrqTable[irq].mapped) return; + if (unlikely(irq >= NUM_EXTERNAL_IRQS)) + return; + if (unlikely(!fpgaIrqTable[irq].mapped)) + return; pri = 15 - irq; fpgaIrq = fpgaIrqTable[irq].fpgaIrq; priorityReg = MICRODEV_FPGA_INTPRI_REG(fpgaIrq); - /* disable interrupts */ - local_irq_save(flags); - - /* set priority for the interrupt */ + /* set priority for the interrupt */ priorities = ctrl_inl(priorityReg); priorities &= ~MICRODEV_FPGA_INTPRI_MASK(fpgaIrq); priorities |= MICRODEV_FPGA_INTPRI_LEVEL(fpgaIrq, pri); ctrl_outl(priorities, priorityReg); - /* enable interupts on the FPGA INTC register */ + /* enable interupts on the FPGA INTC register */ ctrl_outl(MICRODEV_FPGA_INTC_MASK(fpgaIrq), MICRODEV_FPGA_INTENB_REG); - - /* restore interrupts */ - local_irq_restore(flags); } /* This functions sets the desired irq handler to be a MicroDev type */ @@ -158,9 +145,7 @@ static void end_microdev_irq(unsigned int irq) { if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - { enable_microdev_irq(irq); - } } extern void __init init_microdev_irq(void) @@ -171,9 +156,7 @@ ctrl_outl(~0ul, MICRODEV_FPGA_INTDSB_REG); for (i = 0; i < NUM_EXTERNAL_IRQS; i++) - { make_microdev_irq(i); - } } extern void microdev_print_fpga_intc_status(void)
diff --git a/arch/sh/boards/superh/microdev/setup.c b/arch/sh/boards/superh/microdev/setup.c index 61b402a..031c814 100644 --- a/arch/sh/boards/superh/microdev/setup.c +++ b/arch/sh/boards/superh/microdev/setup.c
@@ -10,7 +10,6 @@ * May be copied or modified under the terms of the GNU General Public * License. See linux/COPYING for more information. */ - #include <linux/init.h> #include <linux/platform_device.h> #include <linux/ioport.h> @@ -21,41 +20,6 @@ extern void microdev_heartbeat(void); -/* - * The Machine Vector - */ - -struct sh_machine_vector mv_sh4202_microdev __initmv = { - .mv_nr_irqs = 72, /* QQQ need to check this - use the MACRO */ - - .mv_inb = microdev_inb, - .mv_inw = microdev_inw, - .mv_inl = microdev_inl, - .mv_outb = microdev_outb, - .mv_outw = microdev_outw, - .mv_outl = microdev_outl, - - .mv_inb_p = microdev_inb_p, - .mv_inw_p = microdev_inw_p, - .mv_inl_p = microdev_inl_p, - .mv_outb_p = microdev_outb_p, - .mv_outw_p = microdev_outw_p, - .mv_outl_p = microdev_outl_p, - - .mv_insb = microdev_insb, - .mv_insw = microdev_insw, - .mv_insl = microdev_insl, - .mv_outsb = microdev_outsb, - .mv_outsw = microdev_outsw, - .mv_outsl = microdev_outsl, - - .mv_init_irq = init_microdev_irq, - -#ifdef CONFIG_HEARTBEAT - .mv_heartbeat = microdev_heartbeat, -#endif -}; -ALIAS_MV(sh4202_microdev) /****************************************************************************/ @@ -113,11 +77,6 @@ /* assume a Keyboard Controller is present */ int microdev_kbd_controller_present = 1; -const char *get_system_type(void) -{ - return "SH4-202 MicroDev"; -} - static struct resource smc91x_resources[] = { [0] = { .start = 0x300, @@ -291,25 +250,9 @@ return platform_add_devices(microdev_devices, ARRAY_SIZE(microdev_devices)); } -__initcall(microdev_devices_setup); - -void __init platform_setup(void) -{ - int * const fpgaRevisionRegister = (int*)(MICRODEV_FPGA_GP_BASE + 0x8ul); - const int fpgaRevision = *fpgaRevisionRegister; - int * const CacheControlRegister = (int*)CCR; - - printk("SuperH %s board (FPGA rev: 0x%0x, CCR: 0x%0x)\n", - get_system_type(), fpgaRevision, *CacheControlRegister); -} - - -/****************************************************************************/ - - - /* - * Setup for the SMSC FDC37C93xAPM - */ +/* + * Setup for the SMSC FDC37C93xAPM + */ static int __init smsc_superio_setup(void) { @@ -412,8 +355,52 @@ return 0; } +static void __init microdev_setup(char **cmdline_p) +{ + int * const fpgaRevisionRegister = (int*)(MICRODEV_FPGA_GP_BASE + 0x8ul); + const int fpgaRevision = *fpgaRevisionRegister; + int * const CacheControlRegister = (int*)CCR; -/* This is grotty, but, because kernel is always referenced on the link line - * before any devices, this is safe. + device_initcall(microdev_devices_setup); + device_initcall(smsc_superio_setup); + + printk("SuperH %s board (FPGA rev: 0x%0x, CCR: 0x%0x)\n", + get_system_type(), fpgaRevision, *CacheControlRegister); +} + +/* + * The Machine Vector */ -__initcall(smsc_superio_setup); +struct sh_machine_vector mv_sh4202_microdev __initmv = { + .mv_name = "SH4-202 MicroDev", + .mv_setup = microdev_setup, + .mv_nr_irqs = 72, /* QQQ need to check this - use the MACRO */ + + .mv_inb = microdev_inb, + .mv_inw = microdev_inw, + .mv_inl = microdev_inl, + .mv_outb = microdev_outb, + .mv_outw = microdev_outw, + .mv_outl = microdev_outl, + + .mv_inb_p = microdev_inb_p, + .mv_inw_p = microdev_inw_p, + .mv_inl_p = microdev_inl_p, + .mv_outb_p = microdev_outb_p, + .mv_outw_p = microdev_outw_p, + .mv_outl_p = microdev_outl_p, + + .mv_insb = microdev_insb, + .mv_insw = microdev_insw, + .mv_insl = microdev_insl, + .mv_outsb = microdev_outsb, + .mv_outsw = microdev_outsw, + .mv_outsl = microdev_outsl, + + .mv_init_irq = init_microdev_irq, + +#ifdef CONFIG_HEARTBEAT + .mv_heartbeat = microdev_heartbeat, +#endif +}; +ALIAS_MV(sh4202_microdev)
diff --git a/arch/sh/boards/titan/Makefile b/arch/sh/boards/titan/Makefile new file mode 100644 index 0000000..08d7537 --- /dev/null +++ b/arch/sh/boards/titan/Makefile
@@ -0,0 +1,5 @@ +# +# Makefile for the Nimble Microsystems TITAN specific parts of the kernel +# + +obj-y := setup.o io.o
diff --git a/arch/sh/boards/titan/io.c b/arch/sh/boards/titan/io.c new file mode 100644 index 0000000..4730c1d --- /dev/null +++ b/arch/sh/boards/titan/io.c
@@ -0,0 +1,126 @@ +/* + * I/O routines for Titan + */ +#include <linux/pci.h> +#include <asm/machvec.h> +#include <asm/addrspace.h> +#include <asm/titan.h> +#include <asm/io.h> + +static inline unsigned int port2adr(unsigned int port) +{ + maybebadio((unsigned long)port); + return port; +} + +u8 titan_inb(unsigned long port) +{ + if (PXSEG(port)) + return ctrl_inb(port); + else if (is_pci_ioaddr(port)) + return ctrl_inb(pci_ioaddr(port)); + return ctrl_inw(port2adr(port)) & 0xff; +} + +u8 titan_inb_p(unsigned long port) +{ + u8 v; + + if (PXSEG(port)) + v = ctrl_inb(port); + else if (is_pci_ioaddr(port)) + v = ctrl_inb(pci_ioaddr(port)); + else + v = ctrl_inw(port2adr(port)) & 0xff; + ctrl_delay(); + return v; +} + +u16 titan_inw(unsigned long port) +{ + if (PXSEG(port)) + return ctrl_inw(port); + else if (is_pci_ioaddr(port)) + return ctrl_inw(pci_ioaddr(port)); + else if (port >= 0x2000) + return ctrl_inw(port2adr(port)); + else + maybebadio(port); + return 0; +} + +u32 titan_inl(unsigned long port) +{ + if (PXSEG(port)) + return ctrl_inl(port); + else if (is_pci_ioaddr(port)) + return ctrl_inl(pci_ioaddr(port)); + else if (port >= 0x2000) + return ctrl_inw(port2adr(port)); + else + maybebadio(port); + return 0; +} + +void titan_outb(u8 value, unsigned long port) +{ + if (PXSEG(port)) + ctrl_outb(value, port); + else if (is_pci_ioaddr(port)) + ctrl_outb(value, pci_ioaddr(port)); + else + ctrl_outw(value, port2adr(port)); +} + +void titan_outb_p(u8 value, unsigned long port) +{ + if (PXSEG(port)) + ctrl_outb(value, port); + else if (is_pci_ioaddr(port)) + ctrl_outb(value, pci_ioaddr(port)); + else + ctrl_outw(value, port2adr(port)); + ctrl_delay(); +} + +void titan_outw(u16 value, unsigned long port) +{ + if (PXSEG(port)) + ctrl_outw(value, port); + else if (is_pci_ioaddr(port)) + ctrl_outw(value, pci_ioaddr(port)); + else if (port >= 0x2000) + ctrl_outw(value, port2adr(port)); + else + maybebadio(port); +} + +void titan_outl(u32 value, unsigned long port) +{ + if (PXSEG(port)) + ctrl_outl(value, port); + else if (is_pci_ioaddr(port)) + ctrl_outl(value, pci_ioaddr(port)); + else + maybebadio(port); +} + +void titan_insl(unsigned long port, void *dst, unsigned long count) +{ + maybebadio(port); +} + +void titan_outsl(unsigned long port, const void *src, unsigned long count) +{ + maybebadio(port); +} + +void __iomem *titan_ioport_map(unsigned long port, unsigned int size) +{ + if (PXSEG(port) || is_pci_memaddr(port)) + return (void __iomem *)port; + else if (is_pci_ioaddr(port)) + return (void __iomem *)pci_ioaddr(port); + + return (void __iomem *)port2adr(port); +}
diff --git a/arch/sh/boards/titan/setup.c b/arch/sh/boards/titan/setup.c new file mode 100644 index 0000000..52b66d8 --- /dev/null +++ b/arch/sh/boards/titan/setup.c
@@ -0,0 +1,48 @@ +/* + * Setup for Titan + */ + +#include <linux/init.h> +#include <asm/irq.h> +#include <asm/titan.h> +#include <asm/io.h> + +extern void __init pcibios_init_platform(void); + +static void __init init_titan_irq(void) +{ + /* enable individual interrupt mode for externals */ + ctrl_outw(ctrl_inw(INTC_ICR) | INTC_ICR_IRLM, INTC_ICR); + + make_ipr_irq( TITAN_IRQ_WAN, IRL0_IPR_ADDR, IRL0_IPR_POS, IRL0_PRIORITY); /* PCIRQ0 */ + make_ipr_irq( TITAN_IRQ_LAN, IRL1_IPR_ADDR, IRL1_IPR_POS, IRL1_PRIORITY); /* PCIRQ1 */ + make_ipr_irq( TITAN_IRQ_MPCIA, IRL2_IPR_ADDR, IRL2_IPR_POS, IRL2_PRIORITY); /* PCIRQ2 */ + make_ipr_irq( TITAN_IRQ_USB, IRL3_IPR_ADDR, IRL3_IPR_POS, IRL3_PRIORITY); /* PCIRQ3 */ +} + +struct sh_machine_vector mv_titan __initmv = { + .mv_name = "Titan", + + .mv_inb = titan_inb, + .mv_inw = titan_inw, + .mv_inl = titan_inl, + .mv_outb = titan_outb, + .mv_outw = titan_outw, + .mv_outl = titan_outl, + + .mv_inb_p = titan_inb_p, + .mv_inw_p = titan_inw, + .mv_inl_p = titan_inl, + .mv_outb_p = titan_outb_p, + .mv_outw_p = titan_outw, + .mv_outl_p = titan_outl, + + .mv_insl = titan_insl, + .mv_outsl = titan_outsl, + + .mv_ioport_map = titan_ioport_map, + + .mv_init_irq = init_titan_irq, + .mv_init_pci = pcibios_init_platform, +}; +ALIAS_MV(titan)
diff --git a/arch/sh/boards/unknown/setup.c b/arch/sh/boards/unknown/setup.c index c5e4ed1..1c94137 100644 --- a/arch/sh/boards/unknown/setup.c +++ b/arch/sh/boards/unknown/setup.c
@@ -14,19 +14,8 @@ */ #include <linux/init.h> #include <asm/machvec.h> -#include <asm/irq.h> struct sh_machine_vector mv_unknown __initmv = { - .mv_nr_irqs = NR_IRQS, + .mv_name = "Unknown", }; ALIAS_MV(unknown) - -const char *get_system_type(void) -{ - return "Unknown"; -} - -void __init platform_setup(void) -{ -} -
diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile index 75a6876..e5f4437 100644 --- a/arch/sh/boot/compressed/Makefile +++ b/arch/sh/boot/compressed/Makefile
@@ -18,13 +18,20 @@ # Assign dummy values if these 2 variables are not defined, # in order to suppress error message. # +CONFIG_PAGE_OFFSET ?= 0x80000000 CONFIG_MEMORY_START ?= 0x0c000000 CONFIG_BOOT_LINK_OFFSET ?= 0x00800000 -IMAGE_OFFSET := $(shell printf "0x%8x" $$[0x80000000+$(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET)]) + +IMAGE_OFFSET := $(shell printf "0x%08x" $$[$(CONFIG_PAGE_OFFSET) + \ + $(CONFIG_MEMORY_START) + \ + $(CONFIG_BOOT_LINK_OFFSET)]) + +LIBGCC := $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T $(obj)/../../kernel/vmlinux.lds -$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE + +$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE $(call if_changed,ld) @:
diff --git a/arch/sh/cchips/Kconfig b/arch/sh/cchips/Kconfig index 155d139..0582ca8 100644 --- a/arch/sh/cchips/Kconfig +++ b/arch/sh/cchips/Kconfig
@@ -65,6 +65,11 @@ Do not change this unless you know what you are doing. +config HD64461_IOBASE + hex "HD64461 start address" + depends on HD64461 + default "0xb0000000" + config HD64461_ENABLER bool "HD64461 PCMCIA enabler" depends on HD64461 @@ -73,7 +78,6 @@ via the HD64461 companion chip. Otherwise, say N. - config HD64465_IOBASE hex "HD64465 start address" depends on HD64465
diff --git a/arch/sh/cchips/hd6446x/hd64461/io.c b/arch/sh/cchips/hd6446x/hd64461/io.c index ac30626..7909a1b 100644 --- a/arch/sh/cchips/hd6446x/hd64461/io.c +++ b/arch/sh/cchips/hd6446x/hd64461/io.c
@@ -1,11 +1,10 @@ /* - * $Id: io.c,v 1.6 2004/03/16 00:07:50 lethal Exp $ * Copyright (C) 2000 YAEGASHI Takeshi * Typical I/O routines for HD64461 system. */ #include <asm/io.h> -#include <asm/hd64461/hd64461.h> +#include <asm/hd64461.h> #define MEM_BASE (CONFIG_HD64461_IOBASE - HD64461_STBCR) @@ -54,11 +53,6 @@ return 0xa0000000 + (port & 0x1fffffff); } -static inline void delay(void) -{ - ctrl_inw(0xa0000000); -} - unsigned char hd64461_inb(unsigned long port) { return *(volatile unsigned char*)PORT2ADDR(port); @@ -67,7 +61,7 @@ unsigned char hd64461_inb_p(unsigned long port) { unsigned long v = *(volatile unsigned char*)PORT2ADDR(port); - delay(); + ctrl_delay(); return v; } @@ -89,7 +83,7 @@ void hd64461_outb_p(unsigned char b, unsigned long port) { *(volatile unsigned char*)PORT2ADDR(port) = b; - delay(); + ctrl_delay(); } void hd64461_outw(unsigned short b, unsigned long port) @@ -144,13 +138,13 @@ while(count--) *addr=*buf++; } -unsigned short hd64461_readw(unsigned long addr) +unsigned short hd64461_readw(void __iomem *addr) { - return *(volatile unsigned short*)(MEM_BASE+addr); + return ctrl_inw(MEM_BASE+(unsigned long __force)addr); } -void hd64461_writew(unsigned short b, unsigned long addr) +void hd64461_writew(unsigned short b, void __iomem *addr) { - *(volatile unsigned short*)(MEM_BASE+addr) = b; + ctrl_outw(b, MEM_BASE+(unsigned long __force)addr); }
diff --git a/arch/sh/cchips/hd6446x/hd64461/setup.c b/arch/sh/cchips/hd6446x/hd64461/setup.c index ad12601..38f1e81 100644 --- a/arch/sh/cchips/hd6446x/hd64461/setup.c +++ b/arch/sh/cchips/hd6446x/hd64461/setup.c
@@ -11,36 +11,28 @@ #include <linux/interrupt.h> #include <linux/init.h> #include <linux/irq.h> - #include <asm/io.h> #include <asm/irq.h> - -#include <asm/hd64461/hd64461.h> +#include <asm/hd64461.h> static void disable_hd64461_irq(unsigned int irq) { - unsigned long flags; unsigned short nimr; unsigned short mask = 1 << (irq - HD64461_IRQBASE); - local_irq_save(flags); nimr = inw(HD64461_NIMR); nimr |= mask; outw(nimr, HD64461_NIMR); - local_irq_restore(flags); } static void enable_hd64461_irq(unsigned int irq) { - unsigned long flags; unsigned short nimr; unsigned short mask = 1 << (irq - HD64461_IRQBASE); - local_irq_save(flags); nimr = inw(HD64461_NIMR); nimr &= ~mask; outw(nimr, HD64461_NIMR); - local_irq_restore(flags); } static void mask_and_ack_hd64461(unsigned int irq)
diff --git a/arch/sh/cchips/hd6446x/hd64465/setup.c b/arch/sh/cchips/hd6446x/hd64465/setup.c index d2b2851..30573d3 100644 --- a/arch/sh/cchips/hd6446x/hd64465/setup.c +++ b/arch/sh/cchips/hd6446x/hd64465/setup.c
@@ -25,31 +25,25 @@ static void disable_hd64465_irq(unsigned int irq) { - unsigned long flags; unsigned short nimr; unsigned short mask = 1 << (irq - HD64465_IRQ_BASE); pr_debug("disable_hd64465_irq(%d): mask=%x\n", irq, mask); - local_irq_save(flags); nimr = inw(HD64465_REG_NIMR); nimr |= mask; outw(nimr, HD64465_REG_NIMR); - local_irq_restore(flags); } static void enable_hd64465_irq(unsigned int irq) { - unsigned long flags; unsigned short nimr; unsigned short mask = 1 << (irq - HD64465_IRQ_BASE); pr_debug("enable_hd64465_irq(%d): mask=%x\n", irq, mask); - local_irq_save(flags); nimr = inw(HD64465_REG_NIMR); nimr &= ~mask; outw(nimr, HD64465_REG_NIMR); - local_irq_restore(flags); }
diff --git a/arch/sh/cchips/voyagergx/irq.c b/arch/sh/cchips/voyagergx/irq.c index 0dc1fb8..392c8b1 100644 --- a/arch/sh/cchips/voyagergx/irq.c +++ b/arch/sh/cchips/voyagergx/irq.c
@@ -32,37 +32,30 @@ #include <asm/io.h> #include <asm/irq.h> -#include <asm/rts7751r2d/rts7751r2d.h> -#include <asm/rts7751r2d/voyagergx_reg.h> +#include <asm/voyagergx.h> static void disable_voyagergx_irq(unsigned int irq) { - unsigned long flags, val; - unsigned long mask = 1 << (irq - VOYAGER_IRQ_BASE); + unsigned long val; + unsigned long mask = 1 << (irq - VOYAGER_IRQ_BASE); pr_debug("disable_voyagergx_irq(%d): mask=%x\n", irq, mask); - local_irq_save(flags); val = inl(VOYAGER_INT_MASK); val &= ~mask; outl(val, VOYAGER_INT_MASK); - local_irq_restore(flags); } - static void enable_voyagergx_irq(unsigned int irq) { - unsigned long flags, val; - unsigned long mask = 1 << (irq - VOYAGER_IRQ_BASE); + unsigned long val; + unsigned long mask = 1 << (irq - VOYAGER_IRQ_BASE); pr_debug("disable_voyagergx_irq(%d): mask=%x\n", irq, mask); - local_irq_save(flags); val = inl(VOYAGER_INT_MASK); val |= mask; outl(val, VOYAGER_INT_MASK); - local_irq_restore(flags); } - static void mask_and_ack_voyagergx(unsigned int irq) { disable_voyagergx_irq(irq); @@ -95,7 +88,8 @@ .end = end_voyagergx_irq, }; -static irqreturn_t voyagergx_interrupt(int irq, void *dev_id, struct pt_regs *regs) +static irqreturn_t voyagergx_interrupt(int irq, void *dev_id, + struct pt_regs *regs) { printk(KERN_INFO "VoyagerGX: spurious interrupt, status: 0x%x\n", @@ -103,9 +97,6 @@ return IRQ_HANDLED; } - -/*====================================================*/ - static struct { int (*func)(int, void *); void *dev;
diff --git a/arch/sh/cchips/voyagergx/setup.c b/arch/sh/cchips/voyagergx/setup.c index 139ca88..66b2fed 100644 --- a/arch/sh/cchips/voyagergx/setup.c +++ b/arch/sh/cchips/voyagergx/setup.c
@@ -13,7 +13,7 @@ #include <linux/init.h> #include <linux/module.h> #include <asm/io.h> -#include <asm/rts7751r2d/voyagergx_reg.h> +#include <asm/voyagergx.h> static int __init setup_voyagergx(void) {
diff --git a/arch/sh/configs/landisk_defconfig b/arch/sh/configs/landisk_defconfig new file mode 100644 index 0000000..6b43316 --- /dev/null +++ b/arch/sh/configs/landisk_defconfig
@@ -0,0 +1,1373 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.13-sh +# Sun Sep 11 13:00:46 2005 +# +CONFIG_SUPERH=y +CONFIG_UID16=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_GENERIC_IOMAP=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_CLEAN_COMPILE=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +CONFIG_HOTPLUG=y +CONFIG_KOBJECT_UEVENT=y +# CONFIG_IKCONFIG is not set +CONFIG_INITRAMFS_SOURCE="" +# CONFIG_EMBEDDED is not set +CONFIG_KALLSYMS=y +CONFIG_KALLSYMS_EXTRA_PASS=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_EPOLL=y +CONFIG_SHMEM=y +CONFIG_CC_ALIGN_FUNCTIONS=0 +CONFIG_CC_ALIGN_LABELS=0 +CONFIG_CC_ALIGN_LOOPS=0 +CONFIG_CC_ALIGN_JUMPS=0 +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +CONFIG_OBSOLETE_MODPARM=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# System type +# +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_STB1_HARP is not set +# CONFIG_SH_STB1_OVERDRIVE is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_CQREEK is not set +# CONFIG_SH_DMIDA is not set +# CONFIG_SH_EC3104 is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_CAT68701 is not set +# CONFIG_SH_BIGSUR is not set +# CONFIG_SH_SH2000 is not set +# CONFIG_SH_ADX is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +CONFIG_SH_LANDISK=y +# CONFIG_SH_TITAN is not set +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH4=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +CONFIG_CPU_SUBTYPE_SH7751=y +CONFIG_CPU_SUBTYPE_SH7751R=y +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set +CONFIG_MEMORY_START=0x0c000000 +CONFIG_MEMORY_SIZE=0x04000000 + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +CONFIG_SH_FPU=y +# CONFIG_SH_STORE_QUEUES is not set + +# +# Timer support +# +CONFIG_SH_TMU=y +CONFIG_SH_PCLK_FREQ_BOOL=y +CONFIG_SH_PCLK_FREQ=33333333 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +CONFIG_SH_DMA=y +CONFIG_NR_ONCHIP_DMA_CHANNELS=4 +# CONFIG_NR_DMA_CHANNELS_BOOL is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set +CONFIG_HEARTBEAT=y + +# +# Kernel features +# +CONFIG_KEXEC=y +# CONFIG_PREEMPT is not set +# CONFIG_SMP is not set + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00800000 +# CONFIG_UBC_WAKEUP is not set +# CONFIG_CMDLINE_BOOL is not set + +# +# Bus options +# +CONFIG_ISA=y +CONFIG_PCI=y +CONFIG_SH_PCIDMA_NONCOHERENT=y +CONFIG_PCI_AUTO=y +CONFIG_PCI_AUTO_UPDATE_RESOURCES=y +CONFIG_PCI_LEGACY_PROC=y + +# +# PCCARD (PCMCIA/CardBus) support +# +CONFIG_PCCARD=y +# CONFIG_PCMCIA_DEBUG is not set +CONFIG_PCMCIA=y +CONFIG_PCMCIA_LOAD_CIS=y +CONFIG_PCMCIA_IOCTL=y +CONFIG_CARDBUS=y + +# +# PC-card bridges +# +CONFIG_YENTA=y +# CONFIG_PD6729 is not set +# CONFIG_I82092 is not set +# CONFIG_I82365 is not set +# CONFIG_TCIC is not set +CONFIG_PCMCIA_PROBE=y +CONFIG_PCCARD_NONSTATIC=y + +# +# PCI Hotplug Support +# +# CONFIG_HOTPLUG_PCI is not set + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_ASK_IP_FIB_HASH=y +# CONFIG_IP_FIB_TRIE is not set +CONFIG_IP_FIB_HASH=y +# CONFIG_IP_MULTIPLE_TABLES is not set +# CONFIG_IP_ROUTE_MULTIPATH is not set +# CONFIG_IP_ROUTE_VERBOSE is not set +CONFIG_IP_PNP=y +# CONFIG_IP_PNP_DHCP is not set +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +# CONFIG_SYN_COOKIES is not set +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y + +# +# IP: Virtual Server Configuration +# +# CONFIG_IP_VS is not set +# CONFIG_IPV6 is not set +CONFIG_NETFILTER=y +# CONFIG_NETFILTER_DEBUG is not set +# CONFIG_NETFILTER_NETLINK is not set + +# +# IP: Netfilter Configuration +# +CONFIG_IP_NF_CONNTRACK=m +CONFIG_IP_NF_CT_ACCT=y +CONFIG_IP_NF_CONNTRACK_MARK=y +# CONFIG_IP_NF_CONNTRACK_EVENTS is not set +# CONFIG_IP_NF_CT_PROTO_SCTP is not set +CONFIG_IP_NF_FTP=m +CONFIG_IP_NF_IRC=m +# CONFIG_IP_NF_NETBIOS_NS is not set +CONFIG_IP_NF_TFTP=m +CONFIG_IP_NF_AMANDA=m +# CONFIG_IP_NF_PPTP is not set +CONFIG_IP_NF_QUEUE=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_LIMIT=m +CONFIG_IP_NF_MATCH_IPRANGE=m +CONFIG_IP_NF_MATCH_MAC=m +CONFIG_IP_NF_MATCH_PKTTYPE=m +CONFIG_IP_NF_MATCH_MARK=m +CONFIG_IP_NF_MATCH_MULTIPORT=m +CONFIG_IP_NF_MATCH_TOS=m +CONFIG_IP_NF_MATCH_RECENT=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_DSCP=m +CONFIG_IP_NF_MATCH_AH_ESP=m +CONFIG_IP_NF_MATCH_LENGTH=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_MATCH_TCPMSS=m +CONFIG_IP_NF_MATCH_HELPER=m +CONFIG_IP_NF_MATCH_STATE=m +CONFIG_IP_NF_MATCH_CONNTRACK=m +CONFIG_IP_NF_MATCH_OWNER=m +CONFIG_IP_NF_MATCH_ADDRTYPE=m +CONFIG_IP_NF_MATCH_REALM=m +CONFIG_IP_NF_MATCH_SCTP=m +# CONFIG_IP_NF_MATCH_DCCP is not set +CONFIG_IP_NF_MATCH_COMMENT=m +CONFIG_IP_NF_MATCH_CONNMARK=m +# CONFIG_IP_NF_MATCH_CONNBYTES is not set +CONFIG_IP_NF_MATCH_HASHLIMIT=m +# CONFIG_IP_NF_MATCH_STRING is not set +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_TARGET_LOG=m +CONFIG_IP_NF_TARGET_ULOG=m +CONFIG_IP_NF_TARGET_TCPMSS=m +# CONFIG_IP_NF_TARGET_NFQUEUE is not set +CONFIG_IP_NF_NAT=m +CONFIG_IP_NF_NAT_NEEDED=y +CONFIG_IP_NF_TARGET_MASQUERADE=m +CONFIG_IP_NF_TARGET_REDIRECT=m +CONFIG_IP_NF_TARGET_NETMAP=m +CONFIG_IP_NF_TARGET_SAME=m +# CONFIG_IP_NF_NAT_SNMP_BASIC is not set +CONFIG_IP_NF_NAT_IRC=m +CONFIG_IP_NF_NAT_FTP=m +CONFIG_IP_NF_NAT_TFTP=m +CONFIG_IP_NF_NAT_AMANDA=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_TOS=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_DSCP=m +CONFIG_IP_NF_TARGET_MARK=m +CONFIG_IP_NF_TARGET_CLASSIFY=m +# CONFIG_IP_NF_TARGET_TTL is not set +CONFIG_IP_NF_TARGET_CONNMARK=m +# CONFIG_IP_NF_TARGET_CLUSTERIP is not set +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_TARGET_NOTRACK=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +CONFIG_LLC=m +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +CONFIG_ATALK=m +# CONFIG_DEV_APPLETALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set +# CONFIG_NET_SCHED is not set +CONFIG_NET_CLS_ROUTE=y + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=y + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +# CONFIG_MTD is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# +# CONFIG_PNP is not set + +# +# Block devices +# +# CONFIG_BLK_CPQ_DA is not set +# CONFIG_BLK_CPQ_CISS_DA is not set +# CONFIG_BLK_DEV_DAC960 is not set +# CONFIG_BLK_DEV_UMEM is not set +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=y +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_SX8 is not set +# CONFIG_BLK_DEV_UB is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_LBD is not set +# CONFIG_CDROM_PKTCDVD is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +CONFIG_IOSCHED_DEADLINE=y +CONFIG_IOSCHED_CFQ=y +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +CONFIG_IDE=y +CONFIG_IDE_MAX_HWIFS=4 +CONFIG_BLK_DEV_IDE=y + +# +# Please see Documentation/ide.txt for help/info on IDE drives +# +# CONFIG_BLK_DEV_IDE_SATA is not set +CONFIG_BLK_DEV_IDEDISK=y +# CONFIG_IDEDISK_MULTI_MODE is not set +# CONFIG_BLK_DEV_IDECS is not set +CONFIG_BLK_DEV_IDECD=y +# CONFIG_BLK_DEV_IDETAPE is not set +# CONFIG_BLK_DEV_IDEFLOPPY is not set +CONFIG_BLK_DEV_IDESCSI=y +# CONFIG_IDE_TASK_IOCTL is not set + +# +# IDE chipset support/bugfixes +# +CONFIG_IDE_GENERIC=y +CONFIG_BLK_DEV_IDEPCI=y +CONFIG_IDEPCI_SHARE_IRQ=y +CONFIG_BLK_DEV_OFFBOARD=y +CONFIG_BLK_DEV_GENERIC=y +# CONFIG_BLK_DEV_OPTI621 is not set +CONFIG_BLK_DEV_IDEDMA_PCI=y +# CONFIG_BLK_DEV_IDEDMA_FORCED is not set +CONFIG_IDEDMA_PCI_AUTO=y +CONFIG_IDEDMA_ONLYDISK=y +CONFIG_BLK_DEV_AEC62XX=y +# CONFIG_BLK_DEV_ALI15X3 is not set +# CONFIG_BLK_DEV_AMD74XX is not set +# CONFIG_BLK_DEV_CMD64X is not set +# CONFIG_BLK_DEV_TRIFLEX is not set +# CONFIG_BLK_DEV_CY82C693 is not set +# CONFIG_BLK_DEV_CS5520 is not set +# CONFIG_BLK_DEV_CS5530 is not set +# CONFIG_BLK_DEV_HPT34X is not set +# CONFIG_BLK_DEV_HPT366 is not set +# CONFIG_BLK_DEV_SC1200 is not set +# CONFIG_BLK_DEV_PIIX is not set +# CONFIG_BLK_DEV_IT821X is not set +# CONFIG_BLK_DEV_NS87415 is not set +# CONFIG_BLK_DEV_PDC202XX_OLD is not set +# CONFIG_BLK_DEV_PDC202XX_NEW is not set +# CONFIG_BLK_DEV_SVWKS is not set +# CONFIG_BLK_DEV_SIIMAGE is not set +# CONFIG_BLK_DEV_SLC90E66 is not set +# CONFIG_BLK_DEV_TRM290 is not set +# CONFIG_BLK_DEV_VIA82CXXX is not set +CONFIG_IDE_SH=y +# CONFIG_IDE_ARM is not set +# CONFIG_IDE_CHIPSETS is not set +CONFIG_BLK_DEV_IDEDMA=y +# CONFIG_IDEDMA_IVB is not set +CONFIG_IDEDMA_AUTO=y +# CONFIG_BLK_DEV_HD is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=y +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=y +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +# CONFIG_CHR_DEV_SG is not set +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +CONFIG_SCSI_MULTI_LUN=y +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set + +# +# SCSI Transport Attributes +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set + +# +# SCSI low-level drivers +# +# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +# CONFIG_SCSI_3W_9XXX is not set +# CONFIG_SCSI_ACARD is not set +# CONFIG_SCSI_AHA152X is not set +# CONFIG_SCSI_AACRAID is not set +# CONFIG_SCSI_AIC7XXX is not set +# CONFIG_SCSI_AIC7XXX_OLD is not set +# CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_DPT_I2O is not set +# CONFIG_SCSI_IN2000 is not set +# CONFIG_MEGARAID_NEWGEN is not set +# CONFIG_MEGARAID_LEGACY is not set +# CONFIG_MEGARAID_SAS is not set +# CONFIG_SCSI_SATA is not set +# CONFIG_SCSI_DMX3191D is not set +# CONFIG_SCSI_DTC3280 is not set +# CONFIG_SCSI_FUTURE_DOMAIN is not set +# CONFIG_SCSI_GENERIC_NCR5380 is not set +# CONFIG_SCSI_GENERIC_NCR5380_MMIO is not set +# CONFIG_SCSI_IPS is not set +# CONFIG_SCSI_INITIO is not set +# CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_NCR53C406A is not set +# CONFIG_SCSI_SYM53C8XX_2 is not set +# CONFIG_SCSI_IPR is not set +# CONFIG_SCSI_PAS16 is not set +# CONFIG_SCSI_PSI240I is not set +# CONFIG_SCSI_QLOGIC_FAS is not set +# CONFIG_SCSI_QLOGIC_FC is not set +# CONFIG_SCSI_QLOGIC_1280 is not set +CONFIG_SCSI_QLA2XXX=y +# CONFIG_SCSI_QLA21XX is not set +# CONFIG_SCSI_QLA22XX is not set +# CONFIG_SCSI_QLA2300 is not set +# CONFIG_SCSI_QLA2322 is not set +# CONFIG_SCSI_QLA6312 is not set +# CONFIG_SCSI_QLA24XX is not set +# CONFIG_SCSI_LPFC is not set +# CONFIG_SCSI_SYM53C416 is not set +# CONFIG_SCSI_DC395x is not set +# CONFIG_SCSI_DC390T is not set +# CONFIG_SCSI_T128 is not set +# CONFIG_SCSI_NSP32 is not set +# CONFIG_SCSI_DEBUG is not set + +# +# PCMCIA SCSI adapter support +# +# CONFIG_PCMCIA_AHA152X is not set +# CONFIG_PCMCIA_FDOMAIN is not set +# CONFIG_PCMCIA_NINJA_SCSI is not set +# CONFIG_PCMCIA_QLOGIC is not set +# CONFIG_PCMCIA_SYM53C500 is not set + +# +# Old CD-ROM drivers (not SCSI, not IDE) +# +# CONFIG_CD_NO_IDESCSI is not set + +# +# Multi-device support (RAID and LVM) +# +CONFIG_MD=y +CONFIG_BLK_DEV_MD=m +CONFIG_MD_LINEAR=m +CONFIG_MD_RAID0=m +CONFIG_MD_RAID1=m +# CONFIG_MD_RAID10 is not set +# CONFIG_MD_RAID5 is not set +# CONFIG_MD_RAID6 is not set +# CONFIG_MD_MULTIPATH is not set +# CONFIG_MD_FAULTY is not set +# CONFIG_BLK_DEV_DM is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set +# CONFIG_FUSION_SPI is not set +# CONFIG_FUSION_FC is not set +# CONFIG_FUSION_SAS is not set + +# +# IEEE 1394 (FireWire) support +# +# CONFIG_IEEE1394 is not set + +# +# I2O device support +# +# CONFIG_I2O is not set + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +CONFIG_TUN=m + +# +# ARCnet devices +# +# CONFIG_ARCNET is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_STNIC is not set +# CONFIG_HAPPYMEAL is not set +# CONFIG_SUNGEM is not set +# CONFIG_CASSINI is not set +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_NET_VENDOR_SMC is not set +# CONFIG_SMC91X is not set +# CONFIG_NET_VENDOR_RACAL is not set + +# +# Tulip family network device support +# +# CONFIG_NET_TULIP is not set +# CONFIG_AT1700 is not set +# CONFIG_DEPCA is not set +# CONFIG_HP100 is not set +# CONFIG_NET_ISA is not set +# CONFIG_NE2000 is not set +CONFIG_NET_PCI=y +# CONFIG_PCNET32 is not set +# CONFIG_AMD8111_ETH is not set +# CONFIG_ADAPTEC_STARFIRE is not set +# CONFIG_AC3200 is not set +# CONFIG_APRICOT is not set +# CONFIG_B44 is not set +# CONFIG_FORCEDETH is not set +# CONFIG_CS89x0 is not set +# CONFIG_DGRS is not set +# CONFIG_EEPRO100 is not set +# CONFIG_E100 is not set +# CONFIG_FEALNX is not set +# CONFIG_NATSEMI is not set +# CONFIG_NE2K_PCI is not set +CONFIG_8139CP=y +# CONFIG_8139TOO is not set +# CONFIG_SIS900 is not set +# CONFIG_EPIC100 is not set +# CONFIG_SUNDANCE is not set +# CONFIG_TLAN is not set +# CONFIG_VIA_RHINE is not set + +# +# Ethernet (1000 Mbit) +# +# CONFIG_ACENIC is not set +# CONFIG_DL2K is not set +# CONFIG_E1000 is not set +# CONFIG_NS83820 is not set +# CONFIG_HAMACHI is not set +# CONFIG_YELLOWFIN is not set +# CONFIG_R8169 is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE is not set +# CONFIG_SK98LIN is not set +# CONFIG_VIA_VELOCITY is not set +# CONFIG_TIGON3 is not set +# CONFIG_BNX2 is not set + +# +# Ethernet (10000 Mbit) +# +# CONFIG_CHELSIO_T1 is not set +# CONFIG_IXGB is not set +# CONFIG_S2IO is not set + +# +# Token Ring devices +# +# CONFIG_TR is not set + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# PCMCIA network device support +# +# CONFIG_NET_PCMCIA is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_FDDI is not set +# CONFIG_HIPPI is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_NET_FC is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +CONFIG_VT=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +# CONFIG_RTC is not set +CONFIG_RS5C313_RTC=y +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_APPLICOM is not set + +# +# Ftape, the floppy tape device driver +# +# CONFIG_DRM is not set + +# +# PCMCIA character devices +# +# CONFIG_SYNCLINK_CS is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Misc devices +# + +# +# Multimedia Capabilities Port drivers +# + +# +# Multimedia devices +# +CONFIG_VIDEO_DEV=m + +# +# Video For Linux +# + +# +# Video Adapters +# +# CONFIG_VIDEO_PMS is not set +# CONFIG_VIDEO_CPIA is not set +# CONFIG_VIDEO_STRADIS is not set +# CONFIG_VIDEO_MXB is not set +# CONFIG_VIDEO_DPC is not set +# CONFIG_VIDEO_HEXIUM_ORION is not set +# CONFIG_VIDEO_HEXIUM_GEMINI is not set + +# +# Radio Adapters +# +# CONFIG_RADIO_CADET is not set +# CONFIG_RADIO_RTRACK is not set +# CONFIG_RADIO_RTRACK2 is not set +# CONFIG_RADIO_AZTECH is not set +# CONFIG_RADIO_GEMTEK is not set +# CONFIG_RADIO_GEMTEK_PCI is not set +# CONFIG_RADIO_MAXIRADIO is not set +# CONFIG_RADIO_MAESTRO is not set +# CONFIG_RADIO_SF16FMI is not set +# CONFIG_RADIO_SF16FMR2 is not set +# CONFIG_RADIO_TERRATEC is not set +# CONFIG_RADIO_TRUST is not set +# CONFIG_RADIO_TYPHOON is not set +# CONFIG_RADIO_ZOLTRIX is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_FB is not set + +# +# Console display driver support +# +# CONFIG_MDA_CONSOLE is not set +CONFIG_DUMMY_CONSOLE=y +CONFIG_FONT_8x16=y + +# +# Sound +# +CONFIG_SOUND=m + +# +# Advanced Linux Sound Architecture +# +# CONFIG_SND is not set + +# +# Open Sound System +# +CONFIG_SOUND_PRIME=m +# CONFIG_SOUND_BT878 is not set +# CONFIG_SOUND_CMPCI is not set +# CONFIG_SOUND_EMU10K1 is not set +# CONFIG_SOUND_FUSION is not set +# CONFIG_SOUND_CS4281 is not set +# CONFIG_SOUND_ES1370 is not set +# CONFIG_SOUND_ES1371 is not set +# CONFIG_SOUND_ESSSOLO1 is not set +# CONFIG_SOUND_MAESTRO is not set +# CONFIG_SOUND_MAESTRO3 is not set +# CONFIG_SOUND_ICH is not set +# CONFIG_SOUND_SONICVIBES is not set +# CONFIG_SOUND_TRIDENT is not set +# CONFIG_SOUND_MSNDCLAS is not set +# CONFIG_SOUND_MSNDPIN is not set +# CONFIG_SOUND_VIA82CXXX is not set +# CONFIG_SOUND_ALI5455 is not set +# CONFIG_SOUND_FORTE is not set +# CONFIG_SOUND_RME96XX is not set +# CONFIG_SOUND_AD1980 is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +CONFIG_USB=y +# CONFIG_USB_DEBUG is not set + +# +# Miscellaneous USB options +# +CONFIG_USB_DEVICEFS=y +# CONFIG_USB_BANDWIDTH is not set +# CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_OTG is not set + +# +# USB Host Controller Drivers +# +CONFIG_USB_EHCI_HCD=y +# CONFIG_USB_EHCI_SPLIT_ISO is not set +# CONFIG_USB_EHCI_ROOT_HUB_TT is not set +# CONFIG_USB_ISP116X_HCD is not set +CONFIG_USB_OHCI_HCD=y +# CONFIG_USB_OHCI_BIG_ENDIAN is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y +# CONFIG_USB_UHCI_HCD is not set +# CONFIG_USB_SL811_HCD is not set + +# +# USB Device Class drivers +# +CONFIG_OBSOLETE_OSS_USB_DRIVER=y +CONFIG_USB_AUDIO=m +# CONFIG_USB_BLUETOOTH_TTY is not set +CONFIG_USB_MIDI=m +# CONFIG_USB_ACM is not set +CONFIG_USB_PRINTER=m + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information +# +CONFIG_USB_STORAGE=m +# CONFIG_USB_STORAGE_DEBUG is not set +CONFIG_USB_STORAGE_DATAFAB=y +CONFIG_USB_STORAGE_FREECOM=y +CONFIG_USB_STORAGE_ISD200=y +CONFIG_USB_STORAGE_DPCM=y +# CONFIG_USB_STORAGE_USBAT is not set +CONFIG_USB_STORAGE_SDDR09=y +CONFIG_USB_STORAGE_SDDR55=y +CONFIG_USB_STORAGE_JUMPSHOT=y + +# +# USB Input Devices +# +CONFIG_USB_HID=m +CONFIG_USB_HIDINPUT=y +# CONFIG_HID_FF is not set +# CONFIG_USB_HIDDEV is not set + +# +# USB HID Boot Protocol drivers +# +# CONFIG_USB_KBD is not set +# CONFIG_USB_MOUSE is not set +# CONFIG_USB_AIPTEK is not set +# CONFIG_USB_WACOM is not set +# CONFIG_USB_ACECAD is not set +# CONFIG_USB_KBTAB is not set +# CONFIG_USB_POWERMATE is not set +# CONFIG_USB_MTOUCH is not set +# CONFIG_USB_ITMTOUCH is not set +# CONFIG_USB_EGALAX is not set +# CONFIG_USB_YEALINK is not set +# CONFIG_USB_XPAD is not set +# CONFIG_USB_ATI_REMOTE is not set +# CONFIG_USB_KEYSPAN_REMOTE is not set +# CONFIG_USB_APPLETOUCH is not set + +# +# USB Imaging devices +# +# CONFIG_USB_MDC800 is not set +# CONFIG_USB_MICROTEK is not set + +# +# USB Multimedia devices +# +CONFIG_USB_DABUSB=m +CONFIG_USB_VICAM=m +CONFIG_USB_DSBR=m +CONFIG_USB_IBMCAM=m +CONFIG_USB_KONICAWC=m +CONFIG_USB_OV511=m +CONFIG_USB_SE401=m +CONFIG_USB_SN9C102=m +CONFIG_USB_STV680=m +CONFIG_USB_PWC=m + +# +# USB Network Adapters +# +# CONFIG_USB_CATC is not set +# CONFIG_USB_KAWETH is not set +CONFIG_USB_PEGASUS=m +CONFIG_USB_RTL8150=m +# CONFIG_USB_USBNET is not set +CONFIG_USB_MON=y + +# +# USB port drivers +# + +# +# USB Serial Converter support +# +CONFIG_USB_SERIAL=m +# CONFIG_USB_SERIAL_GENERIC is not set +# CONFIG_USB_SERIAL_AIRPRIME is not set +# CONFIG_USB_SERIAL_BELKIN is not set +# CONFIG_USB_SERIAL_WHITEHEAT is not set +# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set +# CONFIG_USB_SERIAL_CP2101 is not set +# CONFIG_USB_SERIAL_CYPRESS_M8 is not set +# CONFIG_USB_SERIAL_EMPEG is not set +CONFIG_USB_SERIAL_FTDI_SIO=m +# CONFIG_USB_SERIAL_VISOR is not set +# CONFIG_USB_SERIAL_IPAQ is not set +# CONFIG_USB_SERIAL_IR is not set +# CONFIG_USB_SERIAL_EDGEPORT is not set +# CONFIG_USB_SERIAL_EDGEPORT_TI is not set +# CONFIG_USB_SERIAL_GARMIN is not set +# CONFIG_USB_SERIAL_IPW is not set +# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set +# CONFIG_USB_SERIAL_KEYSPAN is not set +# CONFIG_USB_SERIAL_KLSI is not set +# CONFIG_USB_SERIAL_KOBIL_SCT is not set +# CONFIG_USB_SERIAL_MCT_U232 is not set +CONFIG_USB_SERIAL_PL2303=m +# CONFIG_USB_SERIAL_HP4X is not set +# CONFIG_USB_SERIAL_SAFE is not set +# CONFIG_USB_SERIAL_TI is not set +# CONFIG_USB_SERIAL_CYBERJACK is not set +# CONFIG_USB_SERIAL_XIRCOM is not set +# CONFIG_USB_SERIAL_OPTION is not set +# CONFIG_USB_SERIAL_OMNINET is not set + +# +# USB Miscellaneous drivers +# +CONFIG_USB_EMI62=m +CONFIG_USB_EMI26=m +# CONFIG_USB_AUERSWALD is not set +# CONFIG_USB_RIO500 is not set +# CONFIG_USB_LEGOTOWER is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_PHIDGETKIT is not set +# CONFIG_USB_PHIDGETSERVO is not set +# CONFIG_USB_IDMOUSE is not set +CONFIG_USB_SISUSBVGA=m +CONFIG_USB_SISUSBVGA_CON=y +# CONFIG_USB_LD is not set +# CONFIG_USB_TEST is not set + +# +# USB DSL modem support +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# InfiniBand support +# +# CONFIG_INFINIBAND is not set + +# +# SN Devices +# + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +# CONFIG_EXT3_FS_POSIX_ACL is not set +# CONFIG_EXT3_FS_SECURITY is not set +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +CONFIG_REISERFS_FS=y +# CONFIG_REISERFS_CHECK is not set +# CONFIG_REISERFS_PROC_INFO is not set +# CONFIG_REISERFS_FS_XATTR is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_MINIX_FS is not set +CONFIG_ROMFS_FS=y +CONFIG_INOTIFY=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +CONFIG_ISO9660_FS=m +# CONFIG_JOLIET is not set +# CONFIG_ZISOFS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +CONFIG_NTFS_FS=m +# CONFIG_NTFS_DEBUG is not set +CONFIG_NTFS_RW=y + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +# CONFIG_PROC_KCORE is not set +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_HUGETLBFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_RELAYFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +CONFIG_UFS_FS=m +CONFIG_UFS_FS_WRITE=y + +# +# Network File Systems +# +CONFIG_NFS_FS=m +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +# CONFIG_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +CONFIG_NFSD=m +CONFIG_NFSD_V3=y +# CONFIG_NFSD_V3_ACL is not set +# CONFIG_NFSD_V4 is not set +CONFIG_NFSD_TCP=y +CONFIG_LOCKD=m +CONFIG_LOCKD_V4=y +CONFIG_EXPORTFS=m +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=m +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +CONFIG_SMB_FS=m +# CONFIG_SMB_NLS_DEFAULT is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +CONFIG_NLS_CODEPAGE_437=y +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +CONFIG_NLS_CODEPAGE_932=y +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +# CONFIG_NLS_ISO8859_1 is not set +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +# CONFIG_DEBUG_KERNEL is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_FRAME_POINTER is not set +CONFIG_SH_STANDARD_BIOS=y +# CONFIG_EARLY_SCIF_CONSOLE is not set +# CONFIG_EARLY_PRINTK is not set +# CONFIG_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set
diff --git a/arch/sh/configs/r7780rp_defconfig b/arch/sh/configs/r7780rp_defconfig new file mode 100644 index 0000000..d597fc5 --- /dev/null +++ b/arch/sh/configs/r7780rp_defconfig
@@ -0,0 +1,1099 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.15-sh +# Sat Jan 7 19:47:53 2006 +# +CONFIG_SUPERH=y +CONFIG_UID16=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_CLEAN_COMPILE=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_LOCK_KERNEL=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +# CONFIG_POSIX_MQUEUE is not set +CONFIG_BSD_PROCESS_ACCT=y +# CONFIG_BSD_PROCESS_ACCT_V3 is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +CONFIG_HOTPLUG=y +CONFIG_KOBJECT_UEVENT=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_INITRAMFS_SOURCE="" +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_EMBEDDED=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_BASE_FULL=y +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +CONFIG_SHMEM=y +CONFIG_CC_ALIGN_FUNCTIONS=0 +CONFIG_CC_ALIGN_LABELS=0 +CONFIG_CC_ALIGN_LOOPS=0 +CONFIG_CC_ALIGN_JUMPS=0 +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +CONFIG_OBSOLETE_MODPARM=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# Block layer +# +# CONFIG_LBD is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +# CONFIG_IOSCHED_AS is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_DEFAULT_AS is not set +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +CONFIG_DEFAULT_NOOP=y +CONFIG_DEFAULT_IOSCHED="noop" + +# +# System type +# +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_STB1_HARP is not set +# CONFIG_SH_STB1_OVERDRIVE is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_CQREEK is not set +# CONFIG_SH_DMIDA is not set +# CONFIG_SH_EC3104 is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_CAT68701 is not set +# CONFIG_SH_BIGSUR is not set +# CONFIG_SH_SH2000 is not set +# CONFIG_SH_ADX is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_R77703DRP is not set +CONFIG_SH_R7780RP=y +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_TITAN is not set +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH4=y +CONFIG_CPU_SH4A=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +# CONFIG_CPU_SUBTYPE_SH7751 is not set +# CONFIG_CPU_SUBTYPE_SH7751R is not set +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7770 is not set +CONFIG_CPU_SUBTYPE_SH7780=y + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_32BIT=y +CONFIG_HUGETLB_PAGE_SIZE_64K=y +# CONFIG_HUGETLB_PAGE_SIZE_1MB is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set +CONFIG_MEMORY_START=0x08000000 +CONFIG_MEMORY_SIZE=0x08000000 + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +CONFIG_SH_FPU=y +CONFIG_SH_STORE_QUEUES=y + +# +# Timer support +# +CONFIG_SH_TMU=y +CONFIG_SH_PCLK_FREQ_BOOL=y +CONFIG_SH_PCLK_FREQ=32000000 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +CONFIG_SH_DMA=y +CONFIG_NR_ONCHIP_DMA_CHANNELS=6 +# CONFIG_NR_DMA_CHANNELS_BOOL is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set + +# +# Kernel features +# +# CONFIG_KEXEC is not set +CONFIG_PREEMPT=y +# CONFIG_SMP is not set +CONFIG_CPU_HAS_INTEVT=y +CONFIG_CPU_HAS_INTC2_IRQ=y + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00800000 +# CONFIG_UBC_WAKEUP is not set +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="mem=128M console=ttySC0,115200 root=/dev/hda1" + +# +# Bus options +# +CONFIG_PCI=y +CONFIG_SH_PCIDMA_NONCOHERENT=y +CONFIG_PCI_AUTO=y +CONFIG_PCI_AUTO_UPDATE_RESOURCES=y +CONFIG_PCI_LEGACY_PROC=y +# CONFIG_PCI_DEBUG is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# +CONFIG_HOTPLUG_PCI=y +# CONFIG_HOTPLUG_PCI_FAKE is not set +# CONFIG_HOTPLUG_PCI_CPCI is not set +# CONFIG_HOTPLUG_PCI_SHPC is not set + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_ASK_IP_FIB_HASH=y +# CONFIG_IP_FIB_TRIE is not set +CONFIG_IP_FIB_HASH=y +# CONFIG_IP_MULTIPLE_TABLES is not set +# CONFIG_IP_ROUTE_MULTIPATH is not set +# CONFIG_IP_ROUTE_VERBOSE is not set +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +# CONFIG_SYN_COOKIES is not set +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y +# CONFIG_IPV6 is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set +# CONFIG_ATM is not set +CONFIG_BRIDGE=m +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=m +# CONFIG_DEBUG_DRIVER is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +# CONFIG_MTD is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_CPQ_DA is not set +# CONFIG_BLK_CPQ_CISS_DA is not set +# CONFIG_BLK_DEV_DAC960 is not set +# CONFIG_BLK_DEV_UMEM is not set +# CONFIG_BLK_DEV_COW_COMMON is not set +# CONFIG_BLK_DEV_LOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_SX8 is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +CONFIG_IDE=m +CONFIG_IDE_MAX_HWIFS=4 +CONFIG_BLK_DEV_IDE=m + +# +# Please see Documentation/ide.txt for help/info on IDE drives +# +CONFIG_BLK_DEV_IDE_SATA=y +CONFIG_BLK_DEV_IDEDISK=m +CONFIG_IDEDISK_MULTI_MODE=y +# CONFIG_BLK_DEV_IDECD is not set +# CONFIG_BLK_DEV_IDETAPE is not set +# CONFIG_BLK_DEV_IDEFLOPPY is not set +CONFIG_BLK_DEV_IDESCSI=m +# CONFIG_IDE_TASK_IOCTL is not set + +# +# IDE chipset support/bugfixes +# +CONFIG_IDE_GENERIC=m +CONFIG_BLK_DEV_IDEPCI=y +CONFIG_IDEPCI_SHARE_IRQ=y +# CONFIG_BLK_DEV_OFFBOARD is not set +CONFIG_BLK_DEV_GENERIC=m +# CONFIG_BLK_DEV_OPTI621 is not set +CONFIG_BLK_DEV_IDEDMA_PCI=y +# CONFIG_BLK_DEV_IDEDMA_FORCED is not set +CONFIG_IDEDMA_PCI_AUTO=y +# CONFIG_IDEDMA_ONLYDISK is not set +CONFIG_BLK_DEV_AEC62XX=m +# CONFIG_BLK_DEV_ALI15X3 is not set +# CONFIG_BLK_DEV_AMD74XX is not set +# CONFIG_BLK_DEV_CMD64X is not set +# CONFIG_BLK_DEV_TRIFLEX is not set +# CONFIG_BLK_DEV_CY82C693 is not set +# CONFIG_BLK_DEV_CS5520 is not set +# CONFIG_BLK_DEV_CS5530 is not set +# CONFIG_BLK_DEV_HPT34X is not set +# CONFIG_BLK_DEV_HPT366 is not set +# CONFIG_BLK_DEV_SC1200 is not set +# CONFIG_BLK_DEV_PIIX is not set +# CONFIG_BLK_DEV_IT821X is not set +# CONFIG_BLK_DEV_NS87415 is not set +# CONFIG_BLK_DEV_PDC202XX_OLD is not set +CONFIG_BLK_DEV_PDC202XX_NEW=m +# CONFIG_PDC202XX_FORCE is not set +# CONFIG_BLK_DEV_SVWKS is not set +CONFIG_BLK_DEV_SIIMAGE=m +# CONFIG_BLK_DEV_SLC90E66 is not set +# CONFIG_BLK_DEV_TRM290 is not set +# CONFIG_BLK_DEV_VIA82CXXX is not set +CONFIG_IDE_SH=y +# CONFIG_IDE_ARM is not set +CONFIG_BLK_DEV_IDEDMA=y +# CONFIG_IDEDMA_IVB is not set +CONFIG_IDEDMA_AUTO=y +# CONFIG_BLK_DEV_HD is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=m +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=m +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +# CONFIG_BLK_DEV_SR is not set +CONFIG_CHR_DEV_SG=m +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set + +# +# SCSI Transport Attributes +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set + +# +# SCSI low-level drivers +# +# CONFIG_ISCSI_TCP is not set +# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +# CONFIG_SCSI_3W_9XXX is not set +# CONFIG_SCSI_ACARD is not set +# CONFIG_SCSI_AACRAID is not set +# CONFIG_SCSI_AIC7XXX is not set +# CONFIG_SCSI_AIC7XXX_OLD is not set +# CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_DPT_I2O is not set +# CONFIG_MEGARAID_NEWGEN is not set +# CONFIG_MEGARAID_LEGACY is not set +# CONFIG_MEGARAID_SAS is not set +# CONFIG_SCSI_SATA is not set +# CONFIG_SCSI_DMX3191D is not set +# CONFIG_SCSI_FUTURE_DOMAIN is not set +# CONFIG_SCSI_IPS is not set +# CONFIG_SCSI_INITIO is not set +# CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_SYM53C8XX_2 is not set +# CONFIG_SCSI_IPR is not set +# CONFIG_SCSI_QLOGIC_FC is not set +# CONFIG_SCSI_QLOGIC_1280 is not set +CONFIG_SCSI_QLA2XXX=m +# CONFIG_SCSI_QLA21XX is not set +# CONFIG_SCSI_QLA22XX is not set +# CONFIG_SCSI_QLA2300 is not set +# CONFIG_SCSI_QLA2322 is not set +# CONFIG_SCSI_QLA6312 is not set +# CONFIG_SCSI_QLA24XX is not set +# CONFIG_SCSI_LPFC is not set +# CONFIG_SCSI_DC395x is not set +# CONFIG_SCSI_DC390T is not set +# CONFIG_SCSI_NSP32 is not set +# CONFIG_SCSI_DEBUG is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set +# CONFIG_FUSION_SPI is not set +# CONFIG_FUSION_FC is not set +# CONFIG_FUSION_SAS is not set + +# +# IEEE 1394 (FireWire) support +# +# CONFIG_IEEE1394 is not set + +# +# I2O device support +# +# CONFIG_I2O is not set + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# ARCnet devices +# +# CONFIG_ARCNET is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_STNIC is not set +# CONFIG_HAPPYMEAL is not set +# CONFIG_SUNGEM is not set +# CONFIG_CASSINI is not set +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_SMC91X is not set + +# +# Tulip family network device support +# +# CONFIG_NET_TULIP is not set +# CONFIG_HP100 is not set +CONFIG_NE2000=y +CONFIG_NET_PCI=y +CONFIG_PCNET32=m +# CONFIG_AMD8111_ETH is not set +# CONFIG_ADAPTEC_STARFIRE is not set +# CONFIG_B44 is not set +# CONFIG_FORCEDETH is not set +# CONFIG_DGRS is not set +# CONFIG_EEPRO100 is not set +# CONFIG_E100 is not set +# CONFIG_FEALNX is not set +# CONFIG_NATSEMI is not set +# CONFIG_NE2K_PCI is not set +CONFIG_8139CP=m +CONFIG_8139TOO=m +# CONFIG_8139TOO_PIO is not set +# CONFIG_8139TOO_TUNE_TWISTER is not set +CONFIG_8139TOO_8129=y +# CONFIG_8139_OLD_RX_RESET is not set +# CONFIG_SIS900 is not set +# CONFIG_EPIC100 is not set +# CONFIG_SUNDANCE is not set +# CONFIG_TLAN is not set +CONFIG_VIA_RHINE=m +CONFIG_VIA_RHINE_MMIO=y + +# +# Ethernet (1000 Mbit) +# +# CONFIG_ACENIC is not set +# CONFIG_DL2K is not set +CONFIG_E1000=m +# CONFIG_E1000_NAPI is not set +# CONFIG_NS83820 is not set +# CONFIG_HAMACHI is not set +# CONFIG_YELLOWFIN is not set +CONFIG_R8169=y +# CONFIG_R8169_NAPI is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE is not set +# CONFIG_SK98LIN is not set +# CONFIG_VIA_VELOCITY is not set +# CONFIG_TIGON3 is not set +# CONFIG_BNX2 is not set + +# +# Ethernet (10000 Mbit) +# +# CONFIG_CHELSIO_T1 is not set +# CONFIG_IXGB is not set +# CONFIG_S2IO is not set + +# +# Token Ring devices +# +# CONFIG_TR is not set + +# +# Wireless LAN (non-hamradio) +# +CONFIG_NET_RADIO=y + +# +# Obsolete Wireless cards support (pre-802.11) +# +# CONFIG_STRIP is not set + +# +# Wireless 802.11b ISA/PCI cards support +# +CONFIG_HERMES=m +# CONFIG_PLX_HERMES is not set +# CONFIG_TMD_HERMES is not set +# CONFIG_NORTEL_HERMES is not set +# CONFIG_PCI_HERMES is not set +# CONFIG_ATMEL is not set + +# +# Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support +# +CONFIG_PRISM54=m +# CONFIG_HOSTAP is not set +CONFIG_NET_WIRELESS=y + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_FDDI is not set +# CONFIG_HIPPI is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_NET_FC is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +CONFIG_INPUT_KEYBOARD=y +CONFIG_KEYBOARD_ATKBD=y +# CONFIG_KEYBOARD_SUNKBD is not set +# CONFIG_KEYBOARD_LKKBD is not set +# CONFIG_KEYBOARD_XTKBD is not set +# CONFIG_KEYBOARD_NEWTON is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +CONFIG_SERIO=y +# CONFIG_SERIO_I8042 is not set +# CONFIG_SERIO_SERPORT is not set +# CONFIG_SERIO_PCIPS2 is not set +CONFIG_SERIO_LIBPS2=y +# CONFIG_SERIO_RAW is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +# CONFIG_RTC is not set +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_APPLICOM is not set + +# +# Ftape, the floppy tape device driver +# +# CONFIG_DRM is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set +# CONFIG_TELCLOCK is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Misc devices +# + +# +# Multimedia Capabilities Port drivers +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_FB is not set + +# +# Sound +# +CONFIG_SOUND=m + +# +# Advanced Linux Sound Architecture +# +# CONFIG_SND is not set + +# +# Open Sound System +# +CONFIG_SOUND_PRIME=m +# CONFIG_OBSOLETE_OSS_DRIVER is not set +# CONFIG_SOUND_FUSION is not set +# CONFIG_SOUND_ICH is not set +# CONFIG_SOUND_TRIDENT is not set +# CONFIG_SOUND_MSNDCLAS is not set +# CONFIG_SOUND_MSNDPIN is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +# CONFIG_USB is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# InfiniBand support +# +# CONFIG_INFINIBAND is not set + +# +# SN Devices +# + +# +# File systems +# +CONFIG_EXT2_FS=y +# CONFIG_EXT2_FS_XATTR is not set +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +# CONFIG_EXT3_FS_POSIX_ACL is not set +# CONFIG_EXT3_FS_SECURITY is not set +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +CONFIG_FS_POSIX_ACL=y +# CONFIG_XFS_FS is not set +CONFIG_MINIX_FS=y +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +CONFIG_NTFS_FS=y +# CONFIG_NTFS_DEBUG is not set +CONFIG_NTFS_RW=y + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_KCORE=y +CONFIG_SYSFS=y +# CONFIG_TMPFS is not set +CONFIG_HUGETLBFS=y +CONFIG_HUGETLB_PAGE=y +CONFIG_RAMFS=y +# CONFIG_RELAYFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +CONFIG_NFS_V4=y +# CONFIG_NFS_DIRECTIO is not set +CONFIG_NFSD=y +CONFIG_NFSD_V3=y +# CONFIG_NFSD_V3_ACL is not set +CONFIG_NFSD_V4=y +CONFIG_NFSD_TCP=y +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_EXPORTFS=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +CONFIG_SUNRPC_GSS=y +CONFIG_RPCSEC_GSS_KRB5=y +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="iso8859-1" +CONFIG_NLS_CODEPAGE_437=y +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +CONFIG_NLS_CODEPAGE_932=y +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +# CONFIG_NLS_ASCII is not set +CONFIG_NLS_ISO8859_1=y +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +# CONFIG_NLS_UTF8 is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +CONFIG_DEBUG_KERNEL=y +# CONFIG_MAGIC_SYSRQ is not set +CONFIG_LOG_BUF_SHIFT=14 +CONFIG_DETECT_SOFTLOCKUP=y +# CONFIG_SCHEDSTATS is not set +# CONFIG_DEBUG_SLAB is not set +CONFIG_DEBUG_PREEMPT=y +CONFIG_DEBUG_SPINLOCK=y +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_KOBJECT is not set +# CONFIG_DEBUG_INFO is not set +CONFIG_DEBUG_FS=y +# CONFIG_DEBUG_VM is not set +CONFIG_FRAME_POINTER=y +# CONFIG_RCU_TORTURE_TEST is not set +# CONFIG_SH_STANDARD_BIOS is not set +# CONFIG_EARLY_SCIF_CONSOLE is not set +# CONFIG_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +CONFIG_CRYPTO=y +CONFIG_CRYPTO_HMAC=y +# CONFIG_CRYPTO_NULL is not set +# CONFIG_CRYPTO_MD4 is not set +CONFIG_CRYPTO_MD5=y +# CONFIG_CRYPTO_SHA1 is not set +# CONFIG_CRYPTO_SHA256 is not set +# CONFIG_CRYPTO_SHA512 is not set +# CONFIG_CRYPTO_WP512 is not set +# CONFIG_CRYPTO_TGR192 is not set +CONFIG_CRYPTO_DES=y +# CONFIG_CRYPTO_BLOWFISH is not set +# CONFIG_CRYPTO_TWOFISH is not set +# CONFIG_CRYPTO_SERPENT is not set +# CONFIG_CRYPTO_AES is not set +# CONFIG_CRYPTO_CAST5 is not set +# CONFIG_CRYPTO_CAST6 is not set +# CONFIG_CRYPTO_TEA is not set +# CONFIG_CRYPTO_ARC4 is not set +# CONFIG_CRYPTO_KHAZAD is not set +# CONFIG_CRYPTO_ANUBIS is not set +# CONFIG_CRYPTO_DEFLATE is not set +# CONFIG_CRYPTO_MICHAEL_MIC is not set +# CONFIG_CRYPTO_CRC32C is not set +# CONFIG_CRYPTO_TEST is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set
diff --git a/arch/sh/configs/se73180_defconfig b/arch/sh/configs/se73180_defconfig index d217e44..fe19feb 100644 --- a/arch/sh/configs/se73180_defconfig +++ b/arch/sh/configs/se73180_defconfig
@@ -78,6 +78,7 @@ # CONFIG_SH_SECUREEDGE5410 is not set # CONFIG_SH_HS7751RVOIP is not set # CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_R7780RP is not set # CONFIG_SH_EDOSK7705 is not set # CONFIG_SH_SH4202_MICRODEV is not set # CONFIG_SH_UNKNOWN is not set
diff --git a/arch/sh/configs/se7343_defconfig b/arch/sh/configs/se7343_defconfig new file mode 100644 index 0000000..948e507 --- /dev/null +++ b/arch/sh/configs/se7343_defconfig
@@ -0,0 +1,997 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.17 +# Mon Aug 7 20:14:44 2006 +# +CONFIG_SUPERH=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +# CONFIG_SWAP is not set +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +# CONFIG_BSD_PROCESS_ACCT is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +# CONFIG_RELAY is not set +CONFIG_INITRAMFS_SOURCE="" +CONFIG_UID16=y +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_EMBEDDED=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +# CONFIG_SHMEM is not set +CONFIG_SLAB=y +CONFIG_TINY_SHMEM=y +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set +CONFIG_OBSOLETE_INTERMODULE=y + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +# CONFIG_KMOD is not set + +# +# Block layer +# +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +# CONFIG_IOSCHED_AS is not set +CONFIG_IOSCHED_DEADLINE=y +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_DEFAULT_AS is not set +CONFIG_DEFAULT_DEADLINE=y +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="deadline" + +# +# System type +# +CONFIG_SOLUTION_ENGINE=y +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +CONFIG_SH_7343_SOLUTION_ENGINE=y +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_EC3104 is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_BIGSUR is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_7710VOIPGW is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_R7780RP is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_TITAN is not set +# CONFIG_SH_SHMIN is not set +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH4=y +CONFIG_CPU_SH4A=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7706 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set +# CONFIG_CPU_SUBTYPE_SH7710 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +# CONFIG_CPU_SUBTYPE_SH7751 is not set +# CONFIG_CPU_SUBTYPE_SH7751R is not set +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +CONFIG_CPU_SUBTYPE_SH7343=y +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_PAGE_OFFSET=0x80000000 +CONFIG_MEMORY_START=0x0c000000 +CONFIG_MEMORY_SIZE=0x01000000 +CONFIG_32BIT=y +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +# CONFIG_SH_FPU is not set +# CONFIG_SH_FPU_EMU is not set +CONFIG_SH_DSP=y +# CONFIG_SH_STORE_QUEUES is not set +CONFIG_CPU_HAS_INTEVT=y +CONFIG_CPU_HAS_SR_RB=y + +# +# Timer support +# +CONFIG_SH_TMU=y +CONFIG_SH_PCLK_FREQ=27000000 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +# CONFIG_SH_DMA is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set +CONFIG_HEARTBEAT=y + +# +# Kernel features +# +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 +# CONFIG_KEXEC is not set +# CONFIG_SMP is not set +CONFIG_PREEMPT_NONE=y +# CONFIG_PREEMPT_VOLUNTARY is not set +# CONFIG_PREEMPT is not set + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00800000 +# CONFIG_UBC_WAKEUP is not set +# CONFIG_CMDLINE_BOOL is not set + +# +# Bus options +# +# CONFIG_PCI is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options (EXPERIMENTAL) +# +# CONFIG_PM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +CONFIG_PACKET_MMAP=y +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +# CONFIG_INET_DIAG is not set +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=y + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +CONFIG_MTD_CONCAT=y +CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_REDBOOT_PARTS is not set +# CONFIG_MTD_CMDLINE_PARTS is not set + +# +# User Modules And Translation Layers +# +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set + +# +# RAM/ROM/Flash chip drivers +# +CONFIG_MTD_CFI=y +# CONFIG_MTD_JEDECPROBE is not set +CONFIG_MTD_GEN_PROBE=y +# CONFIG_MTD_CFI_ADV_OPTIONS is not set +CONFIG_MTD_MAP_BANK_WIDTH_1=y +CONFIG_MTD_MAP_BANK_WIDTH_2=y +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +CONFIG_MTD_CFI_I1=y +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +# CONFIG_MTD_CFI_INTELEXT is not set +CONFIG_MTD_CFI_AMDSTD=y +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_CFI_UTIL=y +CONFIG_MTD_RAM=y +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +# CONFIG_MTD_PHYSMAP is not set +# CONFIG_MTD_SOLUTIONENGINE is not set +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD is not set + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set + +# +# NAND Flash Device Drivers +# +# CONFIG_MTD_NAND is not set + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_DEV_COW_COMMON is not set +# CONFIG_BLK_DEV_LOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_RAM is not set +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +# CONFIG_SCSI is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set + +# +# IEEE 1394 (FireWire) support +# + +# +# I2O device support +# + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_STNIC is not set +CONFIG_SMC91X=y +# CONFIG_NE2000 is not set + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y + +# +# Userland interfaces +# +# CONFIG_INPUT_MOUSEDEV is not set +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +CONFIG_VT=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_NR_UARTS=2 +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_UNIX98_PTYS is not set +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +# CONFIG_RTC is not set +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set + +# +# Ftape, the floppy tape device driver +# +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set +# CONFIG_TELCLOCK is not set + +# +# I2C support +# +CONFIG_I2C=y +CONFIG_I2C_CHARDEV=y + +# +# I2C Algorithms +# +# CONFIG_I2C_ALGOBIT is not set +# CONFIG_I2C_ALGOPCF is not set +# CONFIG_I2C_ALGOPCA is not set + +# +# I2C Hardware Bus support +# +# CONFIG_I2C_PARPORT_LIGHT is not set +# CONFIG_I2C_STUB is not set +# CONFIG_I2C_PCA_ISA is not set +CONFIG_I2C_SH7343=y + +# +# Miscellaneous I2C Chip support +# +# CONFIG_SENSORS_DS1337 is not set +# CONFIG_SENSORS_DS1374 is not set +# CONFIG_SENSORS_EEPROM is not set +# CONFIG_SENSORS_PCF8574 is not set +# CONFIG_SENSORS_PCA9539 is not set +# CONFIG_SENSORS_PCF8591 is not set +# CONFIG_SENSORS_MAX6875 is not set +# CONFIG_I2C_DEBUG_CORE is not set +# CONFIG_I2C_DEBUG_ALGO is not set +# CONFIG_I2C_DEBUG_BUS is not set +# CONFIG_I2C_DEBUG_CHIP is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +# CONFIG_HWMON is not set +# CONFIG_HWMON_VID is not set + +# +# Misc devices +# + +# +# Multimedia devices +# +CONFIG_VIDEO_DEV=y +CONFIG_VIDEO_V4L1=y +CONFIG_VIDEO_V4L1_COMPAT=y +CONFIG_VIDEO_V4L2=y + +# +# Video Capture Adapters +# + +# +# Video Capture Adapters +# +# CONFIG_VIDEO_ADV_DEBUG is not set +# CONFIG_VIDEO_VIVI is not set +# CONFIG_VIDEO_CPIA is not set +# CONFIG_VIDEO_SAA5246A is not set +# CONFIG_VIDEO_SAA5249 is not set +# CONFIG_TUNER_3036 is not set +# CONFIG_VIDEO_OVCAMCHIP is not set + +# +# Encoders and Decoders +# +# CONFIG_VIDEO_MSP3400 is not set +# CONFIG_VIDEO_CS53L32A is not set +# CONFIG_VIDEO_WM8775 is not set +# CONFIG_VIDEO_WM8739 is not set +# CONFIG_VIDEO_CX25840 is not set +# CONFIG_VIDEO_SAA711X is not set +# CONFIG_VIDEO_SAA7127 is not set +# CONFIG_VIDEO_UPD64031A is not set +# CONFIG_VIDEO_UPD64083 is not set + +# +# Radio Adapters +# +# CONFIG_RADIO_MAESTRO is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +CONFIG_FB=y +# CONFIG_FB_CFB_FILLRECT is not set +# CONFIG_FB_CFB_COPYAREA is not set +# CONFIG_FB_CFB_IMAGEBLIT is not set +# CONFIG_FB_MACMODES is not set +CONFIG_FB_FIRMWARE_EDID=y +# CONFIG_FB_MODE_HELPERS is not set +# CONFIG_FB_TILEBLITTING is not set +# CONFIG_FB_EPSON1355 is not set +# CONFIG_FB_S1D13XXX is not set +# CONFIG_FB_VIRTUAL is not set + +# +# Console display driver support +# +CONFIG_DUMMY_CONSOLE=y +# CONFIG_FRAMEBUFFER_CONSOLE is not set + +# +# Logo configuration +# +# CONFIG_LOGO is not set +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set + +# +# Sound +# +CONFIG_SOUND=y + +# +# Advanced Linux Sound Architecture +# +CONFIG_SND=y +CONFIG_SND_TIMER=y +CONFIG_SND_PCM=y +CONFIG_SND_SEQUENCER=y +# CONFIG_SND_SEQ_DUMMY is not set +CONFIG_SND_OSSEMUL=y +# CONFIG_SND_MIXER_OSS is not set +CONFIG_SND_PCM_OSS=y +CONFIG_SND_PCM_OSS_PLUGINS=y +# CONFIG_SND_SEQUENCER_OSS is not set +# CONFIG_SND_DYNAMIC_MINORS is not set +CONFIG_SND_SUPPORT_OLD_API=y +CONFIG_SND_VERBOSE_PROCFS=y +# CONFIG_SND_VERBOSE_PRINTK is not set +# CONFIG_SND_DEBUG is not set + +# +# Generic devices +# +# CONFIG_SND_DUMMY is not set +# CONFIG_SND_VIRMIDI is not set +# CONFIG_SND_MTPAV is not set +# CONFIG_SND_SERIAL_U16550 is not set +# CONFIG_SND_MPU401 is not set + +# +# SuperH devices +# +CONFIG_SH7343_SIU=m +CONFIG_AK4537_CODEC=y + +# +# Open Sound System +# +# CONFIG_SOUND_PRIME is not set + +# +# USB support +# +# CONFIG_USB_ARCH_HAS_HCD is not set +# CONFIG_USB_ARCH_HAS_OHCI is not set +# CONFIG_USB_ARCH_HAS_EHCI is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +# CONFIG_RTC_CLASS is not set + +# +# File systems +# +# CONFIG_EXT2_FS is not set +# CONFIG_EXT3_FS is not set +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +# CONFIG_INOTIFY is not set +# CONFIG_QUOTA is not set +# CONFIG_DNOTIFY is not set +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +# CONFIG_MSDOS_FS is not set +# CONFIG_VFAT_FS is not set +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +# CONFIG_PROC_KCORE is not set +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_HUGETLBFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_JFFS_FS is not set +CONFIG_JFFS2_FS=y +CONFIG_JFFS2_FS_DEBUG=0 +CONFIG_JFFS2_FS_WRITEBUFFER=y +# CONFIG_JFFS2_SUMMARY is not set +# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set +CONFIG_JFFS2_ZLIB=y +CONFIG_JFFS2_RTIME=y +# CONFIG_JFFS2_RUBIN is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +# CONFIG_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +CONFIG_NFSD=y +# CONFIG_NFSD_V3 is not set +# CONFIG_NFSD_TCP is not set +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_EXPORTFS=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +# CONFIG_NLS is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_DEBUG_KERNEL is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_DEBUG_BUGVERBOSE is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_SH_STANDARD_BIOS is not set +# CONFIG_EARLY_SCIF_CONSOLE is not set +# CONFIG_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y +CONFIG_ZLIB_DEFLATE=y
diff --git a/arch/sh/configs/sh7710voipgw_defconfig b/arch/sh/configs/sh7710voipgw_defconfig new file mode 100644 index 0000000..ec9a3034 --- /dev/null +++ b/arch/sh/configs/sh7710voipgw_defconfig
@@ -0,0 +1,913 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.17 +# Mon Aug 7 17:07:06 2006 +# +CONFIG_SUPERH=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +# CONFIG_SWAP is not set +CONFIG_SYSVIPC=y +CONFIG_POSIX_MQUEUE=y +# CONFIG_BSD_PROCESS_ACCT is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +# CONFIG_RELAY is not set +CONFIG_INITRAMFS_SOURCE="" +CONFIG_UID16=y +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_EMBEDDED=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +# CONFIG_SHMEM is not set +CONFIG_SLAB=y +CONFIG_TINY_SHMEM=y +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set +CONFIG_OBSOLETE_INTERMODULE=y + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +# CONFIG_KMOD is not set + +# +# Block layer +# +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +# CONFIG_IOSCHED_AS is not set +CONFIG_IOSCHED_DEADLINE=y +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_DEFAULT_AS is not set +CONFIG_DEFAULT_DEADLINE=y +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="deadline" + +# +# System type +# +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_EC3104 is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_BIGSUR is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +CONFIG_SH_7710VOIPGW=y +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_R7780RP is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_TITAN is not set +# CONFIG_SH_SHMIN is not set +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH3=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7706 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set +CONFIG_CPU_SUBTYPE_SH7710=y + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +# CONFIG_CPU_SUBTYPE_SH7751 is not set +# CONFIG_CPU_SUBTYPE_SH7751R is not set +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_PAGE_OFFSET=0x80000000 +CONFIG_MEMORY_START=0x0c000000 +CONFIG_MEMORY_SIZE=0x00800000 +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +# CONFIG_SH_FPU_EMU is not set +CONFIG_SH_DSP=y +# CONFIG_SH_ADC is not set +CONFIG_CPU_HAS_INTEVT=y +CONFIG_CPU_HAS_SR_RB=y + +# +# Timer support +# +CONFIG_SH_TMU=y +CONFIG_SH_PCLK_FREQ=32768000 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +# CONFIG_SH_DMA is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set + +# +# Kernel features +# +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 +# CONFIG_KEXEC is not set +# CONFIG_PREEMPT is not set +# CONFIG_SMP is not set +CONFIG_PREEMPT_NONE=y +# CONFIG_PREEMPT_VOLUNTARY is not set + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00800000 +# CONFIG_UBC_WAKEUP is not set +# CONFIG_CMDLINE_BOOL is not set + +# +# Bus options +# +# CONFIG_PCI is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options (EXPERIMENTAL) +# +# CONFIG_PM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +# CONFIG_IP_PNP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +# CONFIG_INET_DIAG is not set +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y + +# +# IP: Virtual Server Configuration +# +# CONFIG_IP_VS is not set +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +CONFIG_NETFILTER=y +# CONFIG_NETFILTER_DEBUG is not set + +# +# Core Netfilter Configuration +# +# CONFIG_NETFILTER_NETLINK is not set +# CONFIG_NETFILTER_XTABLES is not set + +# +# IP: Netfilter Configuration +# +CONFIG_IP_NF_CONNTRACK=y +# CONFIG_IP_NF_CT_ACCT is not set +# CONFIG_IP_NF_CONNTRACK_MARK is not set +# CONFIG_IP_NF_CONNTRACK_EVENTS is not set +# CONFIG_IP_NF_CT_PROTO_SCTP is not set +CONFIG_IP_NF_FTP=m +# CONFIG_IP_NF_IRC is not set +# CONFIG_IP_NF_NETBIOS_NS is not set +# CONFIG_IP_NF_TFTP is not set +# CONFIG_IP_NF_AMANDA is not set +CONFIG_IP_NF_PPTP=m +# CONFIG_IP_NF_H323 is not set +# CONFIG_IP_NF_QUEUE is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +CONFIG_NET_SCHED=y +CONFIG_NET_SCH_CLK_JIFFIES=y +# CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set +# CONFIG_NET_SCH_CLK_CPU is not set + +# +# Queueing/Scheduling +# +CONFIG_NET_SCH_CBQ=y +# CONFIG_NET_SCH_HTB is not set +# CONFIG_NET_SCH_HFSC is not set +# CONFIG_NET_SCH_PRIO is not set +# CONFIG_NET_SCH_RED is not set +# CONFIG_NET_SCH_SFQ is not set +# CONFIG_NET_SCH_TEQL is not set +# CONFIG_NET_SCH_TBF is not set +# CONFIG_NET_SCH_GRED is not set +# CONFIG_NET_SCH_DSMARK is not set +# CONFIG_NET_SCH_NETEM is not set +CONFIG_NET_SCH_INGRESS=y + +# +# Classification +# +CONFIG_NET_CLS=y +CONFIG_NET_CLS_BASIC=y +CONFIG_NET_CLS_TCINDEX=y +CONFIG_NET_CLS_ROUTE4=y +CONFIG_NET_CLS_ROUTE=y +# CONFIG_NET_CLS_FW is not set +CONFIG_NET_CLS_U32=y +# CONFIG_CLS_U32_PERF is not set +# CONFIG_CLS_U32_MARK is not set +# CONFIG_NET_CLS_RSVP is not set +# CONFIG_NET_CLS_RSVP6 is not set +# CONFIG_NET_EMATCH is not set +# CONFIG_NET_CLS_ACT is not set +CONFIG_NET_CLS_POLICE=y +# CONFIG_NET_CLS_IND is not set +CONFIG_NET_ESTIMATOR=y + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=y + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +# CONFIG_MTD_CONCAT is not set +CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_REDBOOT_PARTS is not set +# CONFIG_MTD_CMDLINE_PARTS is not set + +# +# User Modules And Translation Layers +# +CONFIG_MTD_CHAR=y +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set + +# +# RAM/ROM/Flash chip drivers +# +CONFIG_MTD_CFI=y +# CONFIG_MTD_JEDECPROBE is not set +CONFIG_MTD_GEN_PROBE=y +# CONFIG_MTD_CFI_ADV_OPTIONS is not set +CONFIG_MTD_MAP_BANK_WIDTH_1=y +CONFIG_MTD_MAP_BANK_WIDTH_2=y +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +CONFIG_MTD_CFI_I1=y +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +# CONFIG_MTD_CFI_INTELEXT is not set +CONFIG_MTD_CFI_AMDSTD=y +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_CFI_UTIL=y +CONFIG_MTD_RAM=y +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +# CONFIG_MTD_PHYSMAP is not set +# CONFIG_MTD_SOLUTIONENGINE is not set +CONFIG_MTD_SH7710VOIPGW=y +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD is not set + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set + +# +# NAND Flash Device Drivers +# +# CONFIG_MTD_NAND is not set + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_DEV_COW_COMMON is not set +# CONFIG_BLK_DEV_LOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_RAM is not set +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +# CONFIG_SCSI is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set + +# +# IEEE 1394 (FireWire) support +# + +# +# I2O device support +# + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +# CONFIG_MII is not set +# CONFIG_STNIC is not set +# CONFIG_SMC91X is not set +# CONFIG_NE2000 is not set + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +CONFIG_PHONE=y +# CONFIG_PHONE_IXJ is not set + +# +# Input device support +# +CONFIG_INPUT=y + +# +# Userland interfaces +# +# CONFIG_INPUT_MOUSEDEV is not set +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_NR_UARTS=2 +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_UNIX98_PTYS is not set +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +# CONFIG_RTC is not set +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set + +# +# Ftape, the floppy tape device driver +# +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set +# CONFIG_TELCLOCK is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +# CONFIG_HWMON is not set +# CONFIG_HWMON_VID is not set + +# +# Misc devices +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set +CONFIG_VIDEO_V4L2=y + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_FB is not set + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# USB support +# +# CONFIG_USB_ARCH_HAS_HCD is not set +# CONFIG_USB_ARCH_HAS_OHCI is not set +# CONFIG_USB_ARCH_HAS_EHCI is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +# CONFIG_RTC_CLASS is not set + +# +# File systems +# +# CONFIG_EXT2_FS is not set +# CONFIG_EXT3_FS is not set +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +# CONFIG_INOTIFY is not set +# CONFIG_QUOTA is not set +# CONFIG_DNOTIFY is not set +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +# CONFIG_MSDOS_FS is not set +# CONFIG_VFAT_FS is not set +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +# CONFIG_PROC_KCORE is not set +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_HUGETLBFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_JFFS_FS is not set +CONFIG_JFFS2_FS=y +CONFIG_JFFS2_FS_DEBUG=0 +CONFIG_JFFS2_FS_WRITEBUFFER=y +# CONFIG_JFFS2_SUMMARY is not set +# CONFIG_JFFS2_COMPRESSION_OPTIONS is not set +CONFIG_JFFS2_ZLIB=y +CONFIG_JFFS2_RTIME=y +# CONFIG_JFFS2_RUBIN is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +# CONFIG_NFS_FS is not set +# CONFIG_NFSD is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +# CONFIG_NLS is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_DEBUG_KERNEL is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_DEBUG_BUGVERBOSE is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_SH_STANDARD_BIOS is not set +# CONFIG_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y +CONFIG_ZLIB_DEFLATE=y
diff --git a/arch/sh/configs/shmin_defconfig b/arch/sh/configs/shmin_defconfig new file mode 100644 index 0000000..382b3bd --- /dev/null +++ b/arch/sh/configs/shmin_defconfig
@@ -0,0 +1,827 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.17 +# Wed Aug 2 01:45:03 2006 +# +CONFIG_SUPERH=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_PTRACE=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +# CONFIG_SWAP is not set +# CONFIG_SYSVIPC is not set +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_SYSCTL is not set +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +# CONFIG_RELAY is not set +CONFIG_INITRAMFS_SOURCE="" +# CONFIG_UID16 is not set +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_EMBEDDED=y +# CONFIG_KALLSYMS is not set +# CONFIG_HOTPLUG is not set +CONFIG_PRINTK=y +# CONFIG_BUG is not set +# CONFIG_ELF_CORE is not set +# CONFIG_BASE_FULL is not set +# CONFIG_FUTEX is not set +# CONFIG_EPOLL is not set +# CONFIG_SHMEM is not set +# CONFIG_SLAB is not set +CONFIG_TINY_SHMEM=y +CONFIG_BASE_SMALL=1 +CONFIG_SLOB=y +CONFIG_OBSOLETE_INTERMODULE=y + +# +# Loadable module support +# +# CONFIG_MODULES is not set + +# +# Block layer +# +# CONFIG_LBD is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +# CONFIG_IOSCHED_AS is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_DEFAULT_AS is not set +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +CONFIG_DEFAULT_NOOP=y +CONFIG_DEFAULT_IOSCHED="noop" + +# +# System type +# +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7709_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +# CONFIG_SH_STB1_HARP is not set +# CONFIG_SH_STB1_OVERDRIVE is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_CQREEK is not set +# CONFIG_SH_DMIDA is not set +# CONFIG_SH_EC3104 is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_CAT68701 is not set +# CONFIG_SH_BIGSUR is not set +# CONFIG_SH_SH2000 is not set +# CONFIG_SH_ADX is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_R7780RP is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_TITAN is not set +CONFIG_SH_SHMIN=y +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH3=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +CONFIG_CPU_SUBTYPE_SH7706=y +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +# CONFIG_CPU_SUBTYPE_SH7751 is not set +# CONFIG_CPU_SUBTYPE_SH7751R is not set +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_PAGE_OFFSET=0x80000000 +CONFIG_MEMORY_START=0x0c000000 +CONFIG_MEMORY_SIZE=0x00800000 +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +# CONFIG_SH_FPU_EMU is not set +# CONFIG_SH_DSP is not set +# CONFIG_SH_ADC is not set +CONFIG_CPU_HAS_INTEVT=y +CONFIG_CPU_HAS_SR_RB=y + +# +# Timer support +# +CONFIG_SH_TMU=y +CONFIG_SH_PCLK_FREQ=32000000 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +# CONFIG_SH_DMA is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set + +# +# Kernel features +# +# CONFIG_KEXEC is not set +# CONFIG_PREEMPT is not set +# CONFIG_SMP is not set + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x00210000 +# CONFIG_UBC_WAKEUP is not set +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="console=ttySC1,115200 root=1f01 mtdparts=phys_mapped_flash:64k(firm)ro,-(sys) netdev=34,0x300,eth0 " + +# +# Bus options +# +# CONFIG_PCI is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options (EXPERIMENTAL) +# +# CONFIG_PM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +# CONFIG_PACKET is not set +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_PNP=y +# CONFIG_IP_PNP_DHCP is not set +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +# CONFIG_SYN_COOKIES is not set +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +# CONFIG_FW_LOADER is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +# CONFIG_MTD_CONCAT is not set +CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_REDBOOT_PARTS is not set +CONFIG_MTD_CMDLINE_PARTS=y + +# +# User Modules And Translation Layers +# +# CONFIG_MTD_CHAR is not set +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set + +# +# RAM/ROM/Flash chip drivers +# +# CONFIG_MTD_CFI is not set +CONFIG_MTD_JEDECPROBE=y +CONFIG_MTD_GEN_PROBE=y +# CONFIG_MTD_CFI_ADV_OPTIONS is not set +CONFIG_MTD_MAP_BANK_WIDTH_1=y +CONFIG_MTD_MAP_BANK_WIDTH_2=y +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +CONFIG_MTD_CFI_I1=y +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +# CONFIG_MTD_CFI_INTELEXT is not set +CONFIG_MTD_CFI_AMDSTD=y +# CONFIG_MTD_CFI_STAA is not set +CONFIG_MTD_CFI_UTIL=y +# CONFIG_MTD_RAM is not set +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +# CONFIG_MTD_COMPLEX_MAPPINGS is not set +CONFIG_MTD_PHYSMAP=y +CONFIG_MTD_PHYSMAP_START=0xa0000000 +CONFIG_MTD_PHYSMAP_LEN=0x80000 +CONFIG_MTD_PHYSMAP_BANKWIDTH=1 +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD is not set + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set + +# +# NAND Flash Device Drivers +# +# CONFIG_MTD_NAND is not set + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=y +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_RAM is not set +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +# CONFIG_SCSI is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set + +# +# IEEE 1394 (FireWire) support +# + +# +# I2O device support +# + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +# CONFIG_MII is not set +# CONFIG_STNIC is not set +# CONFIG_SMC91X is not set +CONFIG_NE2000=y + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +# CONFIG_INPUT is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_NR_UARTS=2 +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +# CONFIG_RTC is not set +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set + +# +# Ftape, the floppy tape device driver +# +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set +# CONFIG_TELCLOCK is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +# CONFIG_HWMON is not set +# CONFIG_HWMON_VID is not set + +# +# Misc devices +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set +CONFIG_VIDEO_V4L2=y + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_FB is not set + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# USB support +# +# CONFIG_USB_ARCH_HAS_HCD is not set +# CONFIG_USB_ARCH_HAS_OHCI is not set +# CONFIG_USB_ARCH_HAS_EHCI is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +# CONFIG_RTC_CLASS is not set + +# +# File systems +# +# CONFIG_EXT2_FS is not set +# CONFIG_EXT3_FS is not set +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +# CONFIG_INOTIFY is not set +# CONFIG_QUOTA is not set +# CONFIG_DNOTIFY is not set +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +# CONFIG_MSDOS_FS is not set +# CONFIG_VFAT_FS is not set +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +# CONFIG_PROC_KCORE is not set +# CONFIG_SYSFS is not set +CONFIG_TMPFS=y +# CONFIG_HUGETLBFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_JFFS_FS is not set +# CONFIG_JFFS2_FS is not set +CONFIG_CRAMFS=y +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +# CONFIG_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +# CONFIG_NFSD is not set +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +# CONFIG_NLS is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_DEBUG_KERNEL is not set +CONFIG_LOG_BUF_SHIFT=14 +# CONFIG_UNWIND_INFO is not set +CONFIG_SH_STANDARD_BIOS=y +CONFIG_EARLY_PRINTK=y +# CONFIG_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y
diff --git a/arch/sh/configs/titan_defconfig b/arch/sh/configs/titan_defconfig new file mode 100644 index 0000000..1db2904 --- /dev/null +++ b/arch/sh/configs/titan_defconfig
@@ -0,0 +1,1367 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.14-sh +# Wed Nov 9 00:35:56 2005 +# +CONFIG_SUPERH=y +CONFIG_UID16=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_GENERIC_IOMAP=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_CLEAN_COMPILE=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +CONFIG_SYSCTL=y +# CONFIG_AUDIT is not set +CONFIG_HOTPLUG=y +CONFIG_KOBJECT_UEVENT=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_INITRAMFS_SOURCE="" +# CONFIG_EMBEDDED is not set +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_EPOLL=y +CONFIG_SHMEM=y +CONFIG_CC_ALIGN_FUNCTIONS=0 +CONFIG_CC_ALIGN_LABELS=0 +CONFIG_CC_ALIGN_LOOPS=0 +CONFIG_CC_ALIGN_JUMPS=0 +# CONFIG_TINY_SHMEM is not set +CONFIG_BASE_SMALL=0 + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +CONFIG_MODULE_FORCE_UNLOAD=y +CONFIG_OBSOLETE_MODPARM=y +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# System type +# +# CONFIG_SH_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SOLUTION_ENGINE is not set +# CONFIG_SH_7300_SOLUTION_ENGINE is not set +# CONFIG_SH_73180_SOLUTION_ENGINE is not set +# CONFIG_SH_7751_SYSTEMH is not set +CONFIG_SH_TITAN=y +# CONFIG_SH_STB1_HARP is not set +# CONFIG_SH_STB1_OVERDRIVE is not set +# CONFIG_SH_HP6XX is not set +# CONFIG_SH_CQREEK is not set +# CONFIG_SH_DMIDA is not set +# CONFIG_SH_EC3104 is not set +# CONFIG_SH_SATURN is not set +# CONFIG_SH_DREAMCAST is not set +# CONFIG_SH_CAT68701 is not set +# CONFIG_SH_BIGSUR is not set +# CONFIG_SH_SH2000 is not set +# CONFIG_SH_ADX is not set +# CONFIG_SH_MPC1211 is not set +# CONFIG_SH_SH03 is not set +# CONFIG_SH_SECUREEDGE5410 is not set +# CONFIG_SH_HS7751RVOIP is not set +# CONFIG_SH_RTS7751R2D is not set +# CONFIG_SH_EDOSK7705 is not set +# CONFIG_SH_SH4202_MICRODEV is not set +# CONFIG_SH_LANDISK is not set +# CONFIG_SH_UNKNOWN is not set + +# +# Processor selection +# +CONFIG_CPU_SH4=y + +# +# SH-2 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7604 is not set + +# +# SH-3 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7300 is not set +# CONFIG_CPU_SUBTYPE_SH7705 is not set +# CONFIG_CPU_SUBTYPE_SH7707 is not set +# CONFIG_CPU_SUBTYPE_SH7708 is not set +# CONFIG_CPU_SUBTYPE_SH7709 is not set + +# +# SH-4 Processor Support +# +# CONFIG_CPU_SUBTYPE_SH7750 is not set +# CONFIG_CPU_SUBTYPE_SH7091 is not set +# CONFIG_CPU_SUBTYPE_SH7750R is not set +# CONFIG_CPU_SUBTYPE_SH7750S is not set +CONFIG_CPU_SUBTYPE_SH7751=y +CONFIG_CPU_SUBTYPE_SH7751R=y +# CONFIG_CPU_SUBTYPE_SH7760 is not set +# CONFIG_CPU_SUBTYPE_SH4_202 is not set + +# +# ST40 Processor Support +# +# CONFIG_CPU_SUBTYPE_ST40STB1 is not set +# CONFIG_CPU_SUBTYPE_ST40GX1 is not set + +# +# SH-4A Processor Support +# +# CONFIG_CPU_SUBTYPE_SH73180 is not set +# CONFIG_CPU_SUBTYPE_SH7770 is not set +# CONFIG_CPU_SUBTYPE_SH7780 is not set + +# +# Memory management options +# +CONFIG_MMU=y +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set + +# +# Cache configuration +# +# CONFIG_SH_DIRECT_MAPPED is not set +# CONFIG_SH_WRITETHROUGH is not set +# CONFIG_SH_OCRAM is not set +CONFIG_MEMORY_START=0x08030000 +CONFIG_MEMORY_SIZE=0x7fd0000 + +# +# Processor features +# +CONFIG_CPU_LITTLE_ENDIAN=y +CONFIG_SH_RTC=y +CONFIG_SH_FPU=y +# CONFIG_SH_STORE_QUEUES is not set + +# +# Timer support +# +CONFIG_SH_TMU=y +CONFIG_SH_PCLK_FREQ_BOOL=y +CONFIG_SH_PCLK_FREQ=30000000 + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# DMA support +# +CONFIG_SH_DMA=y +CONFIG_NR_ONCHIP_DMA_CHANNELS=8 +# CONFIG_NR_DMA_CHANNELS_BOOL is not set + +# +# Companion Chips +# +# CONFIG_HD6446X_SERIES is not set + +# +# Kernel features +# +# CONFIG_KEXEC is not set +# CONFIG_PREEMPT is not set +# CONFIG_SMP is not set + +# +# Boot options +# +CONFIG_ZERO_PAGE_OFFSET=0x00001000 +CONFIG_BOOT_LINK_OFFSET=0x009e0000 +# CONFIG_UBC_WAKEUP is not set +CONFIG_CMDLINE_BOOL=y +CONFIG_CMDLINE="console=ttySC1,38400N81 root=/dev/nfs ip=:::::eth1:autoconf" + +# +# Bus options +# +CONFIG_PCI=y +CONFIG_SH_PCIDMA_NONCOHERENT=y +CONFIG_PCI_AUTO=y +CONFIG_PCI_AUTO_UPDATE_RESOURCES=y +CONFIG_PCI_LEGACY_PROC=y +#CONFIG_PCI_DEBUG is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# +CONFIG_HOTPLUG_PCI=y +# CONFIG_HOTPLUG_PCI_FAKE is not set +# CONFIG_HOTPLUG_PCI_CPCI is not set +# CONFIG_HOTPLUG_PCI_SHPC is not set + +# +# Executable file formats +# +CONFIG_BINFMT_ELF=y +# CONFIG_BINFMT_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +CONFIG_PACKET=y +CONFIG_PACKET_MMAP=y +CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +CONFIG_NET_KEY=y +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +CONFIG_IP_ADVANCED_ROUTER=y +CONFIG_ASK_IP_FIB_HASH=y +# CONFIG_IP_FIB_TRIE is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_MULTIPLE_TABLES=y +# CONFIG_IP_ROUTE_FWMARK is not set +CONFIG_IP_ROUTE_MULTIPATH=y +CONFIG_IP_ROUTE_MULTIPATH_CACHED=y +CONFIG_IP_ROUTE_MULTIPATH_RR=m +CONFIG_IP_ROUTE_MULTIPATH_RANDOM=m +CONFIG_IP_ROUTE_MULTIPATH_WRANDOM=m +CONFIG_IP_ROUTE_MULTIPATH_DRR=m +# CONFIG_IP_ROUTE_VERBOSE is not set +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +CONFIG_IP_PNP_RARP=y +CONFIG_NET_IPIP=m +CONFIG_NET_IPGRE=m +CONFIG_NET_IPGRE_BROADCAST=y +CONFIG_IP_MROUTE=y +CONFIG_IP_PIMSM_V1=y +CONFIG_IP_PIMSM_V2=y +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +CONFIG_INET_AH=m +CONFIG_INET_ESP=m +CONFIG_INET_IPCOMP=m +CONFIG_INET_TUNNEL=m +CONFIG_INET_DIAG=m +CONFIG_INET_TCP_DIAG=m +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_BIC=y + +# +# IP: Virtual Server Configuration +# +# CONFIG_IP_VS is not set +CONFIG_IPV6=m +CONFIG_IPV6_PRIVACY=y +CONFIG_INET6_AH=m +CONFIG_INET6_ESP=m +CONFIG_INET6_IPCOMP=m +CONFIG_INET6_TUNNEL=m +CONFIG_IPV6_TUNNEL=m +CONFIG_NETFILTER=y +# CONFIG_NETFILTER_DEBUG is not set +CONFIG_BRIDGE_NETFILTER=y +CONFIG_NETFILTER_NETLINK=m +CONFIG_NETFILTER_NETLINK_QUEUE=m +CONFIG_NETFILTER_NETLINK_LOG=m + +# +# IP: Netfilter Configuration +# +CONFIG_IP_NF_CONNTRACK=m +CONFIG_IP_NF_CT_ACCT=y +CONFIG_IP_NF_CONNTRACK_MARK=y +CONFIG_IP_NF_CONNTRACK_EVENTS=y +CONFIG_IP_NF_CONNTRACK_NETLINK=m +# CONFIG_IP_NF_CT_PROTO_SCTP is not set +CONFIG_IP_NF_FTP=m +CONFIG_IP_NF_IRC=m +CONFIG_IP_NF_NETBIOS_NS=m +CONFIG_IP_NF_TFTP=m +# CONFIG_IP_NF_AMANDA is not set +CONFIG_IP_NF_PPTP=m +CONFIG_IP_NF_QUEUE=m +CONFIG_IP_NF_IPTABLES=m +CONFIG_IP_NF_MATCH_LIMIT=m +CONFIG_IP_NF_MATCH_IPRANGE=m +CONFIG_IP_NF_MATCH_MAC=m +CONFIG_IP_NF_MATCH_PKTTYPE=m +CONFIG_IP_NF_MATCH_MARK=m +CONFIG_IP_NF_MATCH_MULTIPORT=m +CONFIG_IP_NF_MATCH_TOS=m +CONFIG_IP_NF_MATCH_RECENT=m +CONFIG_IP_NF_MATCH_ECN=m +CONFIG_IP_NF_MATCH_DSCP=m +CONFIG_IP_NF_MATCH_AH_ESP=m +CONFIG_IP_NF_MATCH_LENGTH=m +CONFIG_IP_NF_MATCH_TTL=m +CONFIG_IP_NF_MATCH_TCPMSS=m +CONFIG_IP_NF_MATCH_HELPER=m +CONFIG_IP_NF_MATCH_STATE=m +CONFIG_IP_NF_MATCH_CONNTRACK=m +CONFIG_IP_NF_MATCH_OWNER=m +# CONFIG_IP_NF_MATCH_PHYSDEV is not set +CONFIG_IP_NF_MATCH_ADDRTYPE=m +CONFIG_IP_NF_MATCH_REALM=m +# CONFIG_IP_NF_MATCH_SCTP is not set +# CONFIG_IP_NF_MATCH_DCCP is not set +CONFIG_IP_NF_MATCH_COMMENT=m +CONFIG_IP_NF_MATCH_CONNMARK=m +CONFIG_IP_NF_MATCH_CONNBYTES=m +CONFIG_IP_NF_MATCH_HASHLIMIT=m +CONFIG_IP_NF_MATCH_STRING=m +CONFIG_IP_NF_FILTER=m +CONFIG_IP_NF_TARGET_REJECT=m +CONFIG_IP_NF_TARGET_LOG=m +CONFIG_IP_NF_TARGET_ULOG=m +CONFIG_IP_NF_TARGET_TCPMSS=m +CONFIG_IP_NF_TARGET_NFQUEUE=m +CONFIG_IP_NF_NAT=m +CONFIG_IP_NF_NAT_NEEDED=y +CONFIG_IP_NF_TARGET_MASQUERADE=m +CONFIG_IP_NF_TARGET_REDIRECT=m +CONFIG_IP_NF_TARGET_NETMAP=m +CONFIG_IP_NF_TARGET_SAME=m +CONFIG_IP_NF_NAT_SNMP_BASIC=m +CONFIG_IP_NF_NAT_IRC=m +CONFIG_IP_NF_NAT_FTP=m +CONFIG_IP_NF_NAT_TFTP=m +CONFIG_IP_NF_NAT_PPTP=m +CONFIG_IP_NF_MANGLE=m +CONFIG_IP_NF_TARGET_TOS=m +CONFIG_IP_NF_TARGET_ECN=m +CONFIG_IP_NF_TARGET_DSCP=m +CONFIG_IP_NF_TARGET_MARK=m +CONFIG_IP_NF_TARGET_CLASSIFY=m +CONFIG_IP_NF_TARGET_TTL=m +CONFIG_IP_NF_TARGET_CONNMARK=m +CONFIG_IP_NF_TARGET_CLUSTERIP=m +CONFIG_IP_NF_RAW=m +CONFIG_IP_NF_TARGET_NOTRACK=m +CONFIG_IP_NF_ARPTABLES=m +CONFIG_IP_NF_ARPFILTER=m +CONFIG_IP_NF_ARP_MANGLE=m + +# +# IPv6: Netfilter Configuration (EXPERIMENTAL) +# +CONFIG_IP6_NF_QUEUE=m +CONFIG_IP6_NF_IPTABLES=m +CONFIG_IP6_NF_MATCH_LIMIT=m +CONFIG_IP6_NF_MATCH_MAC=m +CONFIG_IP6_NF_MATCH_RT=m +CONFIG_IP6_NF_MATCH_OPTS=m +CONFIG_IP6_NF_MATCH_FRAG=m +CONFIG_IP6_NF_MATCH_HL=m +CONFIG_IP6_NF_MATCH_MULTIPORT=m +CONFIG_IP6_NF_MATCH_OWNER=m +CONFIG_IP6_NF_MATCH_MARK=m +CONFIG_IP6_NF_MATCH_IPV6HEADER=m +CONFIG_IP6_NF_MATCH_AHESP=m +CONFIG_IP6_NF_MATCH_LENGTH=m +CONFIG_IP6_NF_MATCH_EUI64=m +# CONFIG_IP6_NF_MATCH_PHYSDEV is not set +CONFIG_IP6_NF_FILTER=m +CONFIG_IP6_NF_TARGET_LOG=m +CONFIG_IP6_NF_TARGET_REJECT=m +CONFIG_IP6_NF_TARGET_NFQUEUE=m +CONFIG_IP6_NF_MANGLE=m +CONFIG_IP6_NF_TARGET_MARK=m +CONFIG_IP6_NF_TARGET_HL=m +CONFIG_IP6_NF_RAW=m + +# +# Bridge: Netfilter Configuration +# +# CONFIG_BRIDGE_NF_EBTABLES is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set +# CONFIG_ATM is not set +CONFIG_BRIDGE=m +CONFIG_VLAN_8021Q=m +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_NET_DIVERT is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set +CONFIG_NET_SCHED=y +CONFIG_NET_SCH_CLK_JIFFIES=y +# CONFIG_NET_SCH_CLK_GETTIMEOFDAY is not set +# CONFIG_NET_SCH_CLK_CPU is not set +CONFIG_NET_SCH_CBQ=m +CONFIG_NET_SCH_HTB=m +CONFIG_NET_SCH_HFSC=m +CONFIG_NET_SCH_PRIO=m +CONFIG_NET_SCH_RED=m +CONFIG_NET_SCH_SFQ=m +CONFIG_NET_SCH_TEQL=m +CONFIG_NET_SCH_TBF=m +CONFIG_NET_SCH_GRED=m +CONFIG_NET_SCH_DSMARK=m +CONFIG_NET_SCH_NETEM=m +CONFIG_NET_SCH_INGRESS=m +CONFIG_NET_QOS=y +CONFIG_NET_ESTIMATOR=y +CONFIG_NET_CLS=y +CONFIG_NET_CLS_BASIC=m +CONFIG_NET_CLS_TCINDEX=m +CONFIG_NET_CLS_ROUTE4=m +CONFIG_NET_CLS_ROUTE=y +CONFIG_NET_CLS_FW=m +CONFIG_NET_CLS_U32=m +CONFIG_CLS_U32_PERF=y +CONFIG_NET_CLS_IND=y +CONFIG_CLS_U32_MARK=y +CONFIG_NET_CLS_RSVP=m +CONFIG_NET_CLS_RSVP6=m +CONFIG_NET_EMATCH=y +CONFIG_NET_EMATCH_STACK=32 +CONFIG_NET_EMATCH_CMP=m +CONFIG_NET_EMATCH_NBYTE=m +CONFIG_NET_EMATCH_U32=m +CONFIG_NET_EMATCH_META=m +CONFIG_NET_EMATCH_TEXT=m +CONFIG_NET_CLS_ACT=y +CONFIG_NET_ACT_POLICE=m +CONFIG_NET_ACT_GACT=m +CONFIG_GACT_PROB=y +CONFIG_NET_ACT_MIRRED=m +CONFIG_NET_ACT_IPT=m +CONFIG_NET_ACT_PEDIT=m +# CONFIG_NET_ACT_SIMP is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=m +# CONFIG_DEBUG_DRIVER is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +CONFIG_CONNECTOR=m + +# +# Memory Technology Devices (MTD) +# +# CONFIG_MTD is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_CPQ_DA is not set +# CONFIG_BLK_CPQ_CISS_DA is not set +# CONFIG_BLK_DEV_DAC960 is not set +CONFIG_BLK_SSFDC=y +# CONFIG_BLK_DEV_UMEM is not set +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=m +# CONFIG_BLK_DEV_CRYPTOLOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_SX8 is not set +# CONFIG_BLK_DEV_UB is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_INITRD=y +# CONFIG_LBD is not set +# CONFIG_CDROM_PKTCDVD is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +CONFIG_IOSCHED_DEADLINE=y +CONFIG_IOSCHED_CFQ=y +# CONFIG_ATA_OVER_ETH is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=m +CONFIG_SCSI_PROC_FS=y + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=m +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +CONFIG_BLK_DEV_SR=m +# CONFIG_BLK_DEV_SR_VENDOR is not set +CONFIG_CHR_DEV_SG=m +# CONFIG_CHR_DEV_SCH is not set + +# +# Some SCSI devices (e.g. CD jukebox) support multiple LUNs +# +# CONFIG_SCSI_MULTI_LUN is not set +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set + +# +# SCSI Transport Attributes +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set + +# +# SCSI low-level drivers +# +# CONFIG_BLK_DEV_3W_XXXX_RAID is not set +# CONFIG_SCSI_3W_9XXX is not set +# CONFIG_SCSI_ACARD is not set +# CONFIG_SCSI_AACRAID is not set +# CONFIG_SCSI_AIC7XXX is not set +# CONFIG_SCSI_AIC7XXX_OLD is not set +# CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_DPT_I2O is not set +# CONFIG_MEGARAID_NEWGEN is not set +# CONFIG_MEGARAID_LEGACY is not set +# CONFIG_MEGARAID_SAS is not set +# CONFIG_SCSI_SATA is not set +# CONFIG_SCSI_DMX3191D is not set +# CONFIG_SCSI_FUTURE_DOMAIN is not set +# CONFIG_SCSI_IPS is not set +# CONFIG_SCSI_INITIO is not set +# CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_SYM53C8XX_2 is not set +# CONFIG_SCSI_IPR is not set +# CONFIG_SCSI_QLOGIC_FC is not set +# CONFIG_SCSI_QLOGIC_1280 is not set +CONFIG_SCSI_QLA2XXX=m +# CONFIG_SCSI_QLA21XX is not set +# CONFIG_SCSI_QLA22XX is not set +# CONFIG_SCSI_QLA2300 is not set +# CONFIG_SCSI_QLA2322 is not set +# CONFIG_SCSI_QLA6312 is not set +# CONFIG_SCSI_QLA24XX is not set +# CONFIG_SCSI_LPFC is not set +# CONFIG_SCSI_DC395x is not set +# CONFIG_SCSI_DC390T is not set +# CONFIG_SCSI_NSP32 is not set +# CONFIG_SCSI_DEBUG is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set +# CONFIG_FUSION_SPI is not set +# CONFIG_FUSION_FC is not set +# CONFIG_FUSION_SAS is not set + +# +# IEEE 1394 (FireWire) support +# +# CONFIG_IEEE1394 is not set + +# +# I2O device support +# +# CONFIG_I2O is not set + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +CONFIG_TUN=m + +# +# ARCnet devices +# +# CONFIG_ARCNET is not set + +# +# PHY device support +# +CONFIG_PHYLIB=m +CONFIG_PHYCONTROL=y + +# +# MII PHY device drivers +# +CONFIG_MARVELL_PHY=m +CONFIG_DAVICOM_PHY=m +CONFIG_QSEMI_PHY=m +CONFIG_LXT_PHY=m +CONFIG_CICADA_PHY=m + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_STNIC is not set +# CONFIG_HAPPYMEAL is not set +# CONFIG_SUNGEM is not set +CONFIG_CASSINI=m +# CONFIG_NET_VENDOR_3COM is not set +# CONFIG_SMC91X is not set + +# +# Tulip family network device support +# +# CONFIG_NET_TULIP is not set +# CONFIG_HP100 is not set +# CONFIG_NE2000 is not set +CONFIG_NET_PCI=y +# CONFIG_PCNET32 is not set +# CONFIG_AMD8111_ETH is not set +# CONFIG_ADAPTEC_STARFIRE is not set +# CONFIG_B44 is not set +# CONFIG_FORCEDETH is not set +# CONFIG_DGRS is not set +# CONFIG_EEPRO100 is not set +# CONFIG_E100 is not set +# CONFIG_FEALNX is not set +# CONFIG_NATSEMI is not set +# CONFIG_NE2K_PCI is not set +# CONFIG_8139CP is not set +CONFIG_8139TOO=y +# CONFIG_8139TOO_PIO is not set +CONFIG_8139TOO_TUNE_TWISTER=y +# CONFIG_8139TOO_8129 is not set +CONFIG_8139_OLD_RX_RESET=y +# CONFIG_SIS900 is not set +# CONFIG_EPIC100 is not set +# CONFIG_SUNDANCE is not set +# CONFIG_TLAN is not set +# CONFIG_VIA_RHINE is not set + +# +# Ethernet (1000 Mbit) +# +# CONFIG_ACENIC is not set +# CONFIG_DL2K is not set +# CONFIG_E1000 is not set +# CONFIG_NS83820 is not set +# CONFIG_HAMACHI is not set +# CONFIG_YELLOWFIN is not set +# CONFIG_R8169 is not set +# CONFIG_SIS190 is not set +# CONFIG_SKGE is not set +# CONFIG_SK98LIN is not set +# CONFIG_VIA_VELOCITY is not set +# CONFIG_TIGON3 is not set +# CONFIG_BNX2 is not set + +# +# Ethernet (10000 Mbit) +# +# CONFIG_CHELSIO_T1 is not set +# CONFIG_IXGB is not set +# CONFIG_S2IO is not set + +# +# Token Ring devices +# +# CONFIG_TR is not set + +# +# Wireless LAN (non-hamradio) +# +CONFIG_NET_RADIO=y + +# +# Obsolete Wireless cards support (pre-802.11) +# +# CONFIG_STRIP is not set + +# +# Wireless 802.11b ISA/PCI cards support +# +# CONFIG_HERMES is not set +# CONFIG_ATMEL is not set + +# +# Prism GT/Duette 802.11(a/b/g) PCI/Cardbus support +# +CONFIG_PRISM54=m +# CONFIG_HOSTAP is not set +CONFIG_NET_WIRELESS=y + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_FDDI is not set +# CONFIG_HIPPI is not set +CONFIG_PPP=m +CONFIG_PPP_MULTILINK=y +CONFIG_PPP_FILTER=y +CONFIG_PPP_ASYNC=m +CONFIG_PPP_SYNC_TTY=m +CONFIG_PPP_DEFLATE=m +CONFIG_PPP_BSDCOMP=m +CONFIG_PPPOE=m +# CONFIG_SLIP is not set +# CONFIG_NET_FC is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +# CONFIG_INPUT_MISC is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +CONFIG_VT=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_SH_SCI=y +CONFIG_SERIAL_SH_SCI_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_JSM is not set +CONFIG_UNIX98_PTYS=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +# CONFIG_RTC is not set +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_APPLICOM is not set + +# +# Ftape, the floppy tape device driver +# +# CONFIG_DRM is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Misc devices +# + +# +# Multimedia Capabilities Port drivers +# + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_FB is not set + +# +# Console display driver support +# +CONFIG_DUMMY_CONSOLE=y + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +CONFIG_USB_ARCH_HAS_OHCI=y +CONFIG_USB=m +# CONFIG_USB_DEBUG is not set + +# +# Miscellaneous USB options +# +CONFIG_USB_DEVICEFS=y +# CONFIG_USB_BANDWIDTH is not set +# CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_OTG is not set + +# +# USB Host Controller Drivers +# +CONFIG_USB_EHCI_HCD=m +# CONFIG_USB_EHCI_SPLIT_ISO is not set +# CONFIG_USB_EHCI_ROOT_HUB_TT is not set +# CONFIG_USB_ISP116X_HCD is not set +CONFIG_USB_OHCI_HCD=m +# CONFIG_USB_OHCI_BIG_ENDIAN is not set +CONFIG_USB_OHCI_LITTLE_ENDIAN=y +# CONFIG_USB_UHCI_HCD is not set +# CONFIG_USB_SL811_HCD is not set + +# +# USB Device Class drivers +# +# CONFIG_USB_BLUETOOTH_TTY is not set +# CONFIG_USB_ACM is not set +# CONFIG_USB_PRINTER is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' may also be needed; see USB_STORAGE Help for more information +# +CONFIG_USB_STORAGE=m +# CONFIG_USB_STORAGE_DEBUG is not set +# CONFIG_USB_STORAGE_DATAFAB is not set +# CONFIG_USB_STORAGE_FREECOM is not set +# CONFIG_USB_STORAGE_DPCM is not set +# CONFIG_USB_STORAGE_USBAT is not set +# CONFIG_USB_STORAGE_SDDR09 is not set +# CONFIG_USB_STORAGE_SDDR55 is not set +# CONFIG_USB_STORAGE_JUMPSHOT is not set + +# +# USB Input Devices +# +# CONFIG_USB_HID is not set + +# +# USB HID Boot Protocol drivers +# +# CONFIG_USB_KBD is not set +# CONFIG_USB_MOUSE is not set +# CONFIG_USB_AIPTEK is not set +# CONFIG_USB_WACOM is not set +# CONFIG_USB_ACECAD is not set +# CONFIG_USB_KBTAB is not set +# CONFIG_USB_POWERMATE is not set +# CONFIG_USB_MTOUCH is not set +# CONFIG_USB_ITMTOUCH is not set +# CONFIG_USB_EGALAX is not set +# CONFIG_USB_YEALINK is not set +# CONFIG_USB_XPAD is not set +# CONFIG_USB_ATI_REMOTE is not set +# CONFIG_USB_KEYSPAN_REMOTE is not set +# CONFIG_USB_APPLETOUCH is not set + +# +# USB Imaging devices +# +# CONFIG_USB_MDC800 is not set +# CONFIG_USB_MICROTEK is not set + +# +# USB Multimedia devices +# +# CONFIG_USB_DABUSB is not set + +# +# Video4Linux support is needed for USB Multimedia device support +# + +# +# USB Network Adapters +# +# CONFIG_USB_CATC is not set +# CONFIG_USB_KAWETH is not set +# CONFIG_USB_PEGASUS is not set +# CONFIG_USB_RTL8150 is not set +# CONFIG_USB_USBNET is not set +# CONFIG_USB_ZD1201 is not set +CONFIG_USB_MON=y + +# +# USB port drivers +# + +# +# USB Serial Converter support +# +CONFIG_USB_SERIAL=m +CONFIG_USB_SERIAL_GENERIC=y +# CONFIG_USB_SERIAL_AIRPRIME is not set +# CONFIG_USB_SERIAL_BELKIN is not set +# CONFIG_USB_SERIAL_WHITEHEAT is not set +# CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set +# CONFIG_USB_SERIAL_CP2101 is not set +# CONFIG_USB_SERIAL_CYPRESS_M8 is not set +# CONFIG_USB_SERIAL_EMPEG is not set +# CONFIG_USB_SERIAL_FTDI_SIO is not set +# CONFIG_USB_SERIAL_VISOR is not set +# CONFIG_USB_SERIAL_IPAQ is not set +# CONFIG_USB_SERIAL_IR is not set +# CONFIG_USB_SERIAL_EDGEPORT is not set +# CONFIG_USB_SERIAL_EDGEPORT_TI is not set +# CONFIG_USB_SERIAL_GARMIN is not set +# CONFIG_USB_SERIAL_IPW is not set +# CONFIG_USB_SERIAL_KEYSPAN_PDA is not set +# CONFIG_USB_SERIAL_KEYSPAN is not set +# CONFIG_USB_SERIAL_KLSI is not set +# CONFIG_USB_SERIAL_KOBIL_SCT is not set +# CONFIG_USB_SERIAL_MCT_U232 is not set +CONFIG_USB_SERIAL_PL2303=m +# CONFIG_USB_SERIAL_HP4X is not set +# CONFIG_USB_SERIAL_SAFE is not set +# CONFIG_USB_SERIAL_TI is not set +# CONFIG_USB_SERIAL_CYBERJACK is not set +# CONFIG_USB_SERIAL_XIRCOM is not set +# CONFIG_USB_SERIAL_OMNINET is not set + +# +# USB Miscellaneous drivers +# +# CONFIG_USB_EMI62 is not set +# CONFIG_USB_EMI26 is not set +# CONFIG_USB_AUERSWALD is not set +# CONFIG_USB_RIO500 is not set +# CONFIG_USB_LEGOTOWER is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_PHIDGETKIT is not set +# CONFIG_USB_PHIDGETSERVO is not set +# CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_SISUSBVGA is not set +# CONFIG_USB_LD is not set +# CONFIG_USB_TEST is not set + +# +# USB DSL modem support +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# InfiniBand support +# +# CONFIG_INFINIBAND is not set + +# +# SN Devices +# + +# +# File systems +# +CONFIG_EXT2_FS=y +CONFIG_EXT2_FS_XATTR=y +CONFIG_EXT2_FS_POSIX_ACL=y +CONFIG_EXT2_FS_SECURITY=y +# CONFIG_EXT2_FS_XIP is not set +CONFIG_EXT3_FS=y +CONFIG_EXT3_FS_XATTR=y +CONFIG_EXT3_FS_POSIX_ACL=y +CONFIG_EXT3_FS_SECURITY=y +CONFIG_JBD=y +# CONFIG_JBD_DEBUG is not set +CONFIG_FS_MBCACHE=y +CONFIG_REISERFS_FS=m +# CONFIG_REISERFS_CHECK is not set +# CONFIG_REISERFS_PROC_INFO is not set +# CONFIG_REISERFS_FS_XATTR is not set +# CONFIG_JFS_FS is not set +CONFIG_FS_POSIX_ACL=y +# CONFIG_XFS_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +CONFIG_FUSE_FS=m + +# +# CD-ROM/DVD Filesystems +# +CONFIG_ISO9660_FS=m +CONFIG_JOLIET=y +CONFIG_ZISOFS=y +CONFIG_ZISOFS_FS=m +CONFIG_UDF_FS=m +CONFIG_UDF_NLS=y + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=m +CONFIG_MSDOS_FS=m +CONFIG_VFAT_FS=m +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1" +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_KCORE=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_HUGETLBFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +CONFIG_RELAYFS_FS=m + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +# CONFIG_NFS_V4 is not set +# CONFIG_NFS_DIRECTIO is not set +CONFIG_NFSD=y +CONFIG_NFSD_V3=y +# CONFIG_NFSD_V3_ACL is not set +# CONFIG_NFSD_V4 is not set +CONFIG_NFSD_TCP=y +CONFIG_ROOT_NFS=y +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_EXPORTFS=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +CONFIG_SMB_FS=m +# CONFIG_SMB_NLS_DEFAULT is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +CONFIG_9P_FS=m + +# +# Partition Types +# +CONFIG_PARTITION_ADVANCED=y +# CONFIG_ACORN_PARTITION is not set +# CONFIG_OSF_PARTITION is not set +# CONFIG_AMIGA_PARTITION is not set +# CONFIG_ATARI_PARTITION is not set +# CONFIG_MAC_PARTITION is not set +CONFIG_MSDOS_PARTITION=y +# CONFIG_BSD_DISKLABEL is not set +# CONFIG_MINIX_SUBPARTITION is not set +# CONFIG_SOLARIS_X86_PARTITION is not set +# CONFIG_UNIXWARE_DISKLABEL is not set +# CONFIG_LDM_PARTITION is not set +# CONFIG_SGI_PARTITION is not set +# CONFIG_ULTRIX_PARTITION is not set +# CONFIG_SUN_PARTITION is not set +# CONFIG_EFI_PARTITION is not set + +# +# Native Language Support +# +CONFIG_NLS=m +CONFIG_NLS_DEFAULT="iso8859-1" +CONFIG_NLS_CODEPAGE_437=m +# CONFIG_NLS_CODEPAGE_737 is not set +# CONFIG_NLS_CODEPAGE_775 is not set +# CONFIG_NLS_CODEPAGE_850 is not set +# CONFIG_NLS_CODEPAGE_852 is not set +# CONFIG_NLS_CODEPAGE_855 is not set +# CONFIG_NLS_CODEPAGE_857 is not set +# CONFIG_NLS_CODEPAGE_860 is not set +# CONFIG_NLS_CODEPAGE_861 is not set +# CONFIG_NLS_CODEPAGE_862 is not set +# CONFIG_NLS_CODEPAGE_863 is not set +# CONFIG_NLS_CODEPAGE_864 is not set +# CONFIG_NLS_CODEPAGE_865 is not set +# CONFIG_NLS_CODEPAGE_866 is not set +# CONFIG_NLS_CODEPAGE_869 is not set +# CONFIG_NLS_CODEPAGE_936 is not set +# CONFIG_NLS_CODEPAGE_950 is not set +# CONFIG_NLS_CODEPAGE_932 is not set +# CONFIG_NLS_CODEPAGE_949 is not set +# CONFIG_NLS_CODEPAGE_874 is not set +# CONFIG_NLS_ISO8859_8 is not set +# CONFIG_NLS_CODEPAGE_1250 is not set +# CONFIG_NLS_CODEPAGE_1251 is not set +CONFIG_NLS_ASCII=m +CONFIG_NLS_ISO8859_1=m +# CONFIG_NLS_ISO8859_2 is not set +# CONFIG_NLS_ISO8859_3 is not set +# CONFIG_NLS_ISO8859_4 is not set +# CONFIG_NLS_ISO8859_5 is not set +# CONFIG_NLS_ISO8859_6 is not set +# CONFIG_NLS_ISO8859_7 is not set +# CONFIG_NLS_ISO8859_9 is not set +# CONFIG_NLS_ISO8859_13 is not set +# CONFIG_NLS_ISO8859_14 is not set +# CONFIG_NLS_ISO8859_15 is not set +# CONFIG_NLS_KOI8_R is not set +# CONFIG_NLS_KOI8_U is not set +CONFIG_NLS_UTF8=m + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +CONFIG_DEBUG_KERNEL=y +CONFIG_MAGIC_SYSRQ=y +CONFIG_LOG_BUF_SHIFT=16 +# CONFIG_DETECT_SOFTLOCKUP is not set +# CONFIG_SCHEDSTATS is not set +CONFIG_DEBUG_SLAB=y +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_KOBJECT is not set +# CONFIG_DEBUG_INFO is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_FRAME_POINTER is not set +# CONFIG_SH_STANDARD_BIOS is not set +CONFIG_EARLY_SCIF_CONSOLE=y +# CONFIG_EARLY_PRINTK is not set +# CONFIG_KGDB is not set + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +CONFIG_CRYPTO=y +CONFIG_CRYPTO_HMAC=y +# CONFIG_CRYPTO_NULL is not set +CONFIG_CRYPTO_MD4=m +CONFIG_CRYPTO_MD5=m +CONFIG_CRYPTO_SHA1=m +CONFIG_CRYPTO_SHA256=m +CONFIG_CRYPTO_SHA512=m +CONFIG_CRYPTO_WP512=m +CONFIG_CRYPTO_TGR192=m +CONFIG_CRYPTO_DES=m +CONFIG_CRYPTO_BLOWFISH=m +CONFIG_CRYPTO_TWOFISH=m +CONFIG_CRYPTO_SERPENT=m +CONFIG_CRYPTO_AES=m +CONFIG_CRYPTO_CAST5=m +CONFIG_CRYPTO_CAST6=m +CONFIG_CRYPTO_TEA=m +CONFIG_CRYPTO_ARC4=m +CONFIG_CRYPTO_KHAZAD=m +CONFIG_CRYPTO_ANUBIS=m +CONFIG_CRYPTO_DEFLATE=m +CONFIG_CRYPTO_MICHAEL_MIC=m +CONFIG_CRYPTO_CRC32C=m +# CONFIG_CRYPTO_TEST is not set + +# +# Hardware crypto devices +# + +# +# Library routines +# +CONFIG_CRC_CCITT=m +CONFIG_CRC16=m +CONFIG_CRC32=y +CONFIG_LIBCRC32C=m +CONFIG_ZLIB_INFLATE=m +CONFIG_ZLIB_DEFLATE=m +CONFIG_TEXTSEARCH=y +CONFIG_TEXTSEARCH_KMP=m +CONFIG_TEXTSEARCH_BM=m +CONFIG_TEXTSEARCH_FSM=m
diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig index 0f15216..defc13c 100644 --- a/arch/sh/drivers/dma/Kconfig +++ b/arch/sh/drivers/dma/Kconfig
@@ -11,6 +11,8 @@ config NR_ONCHIP_DMA_CHANNELS depends on SH_DMA int "Number of on-chip DMAC channels" + default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R + default "12" if CPU_SUBTYPE_SH7780 default "4" help This allows you to specify the number of channels that the on-chip @@ -52,4 +54,3 @@ are dual-address capable. endmenu -
diff --git a/arch/sh/drivers/dma/dma-g2.c b/arch/sh/drivers/dma/dma-g2.c index 0f866f8..9cb0709 100644 --- a/arch/sh/drivers/dma/dma-g2.c +++ b/arch/sh/drivers/dma/dma-g2.c
@@ -3,7 +3,7 @@ * * G2 bus DMA support * - * Copyright (C) 2003, 2004 Paul Mundt + * Copyright (C) 2003 - 2006 Paul Mundt * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -13,7 +13,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/interrupt.h> - +#include <asm/cacheflush.h> #include <asm/mach/sysasic.h> #include <asm/mach/dma.h> #include <asm/dma.h> @@ -47,17 +47,31 @@ static volatile struct g2_dma_info *g2_dma = (volatile struct g2_dma_info *)0xa05f7800; +#define g2_bytes_remaining(i) \ + ((g2_dma->channel[i].size - \ + g2_dma->status[i].size) & 0x0fffffff) + static irqreturn_t g2_dma_interrupt(int irq, void *dev_id, struct pt_regs *regs) { - /* FIXME: Do some meaningful completion work here.. */ - return IRQ_HANDLED; -} + int i; -static struct irqaction g2_dma_irq = { - .name = "g2 DMA handler", - .handler = g2_dma_interrupt, - .flags = IRQF_DISABLED, -}; + for (i = 0; i < G2_NR_DMA_CHANNELS; i++) { + if (g2_dma->status[i].status & 0x20000000) { + unsigned int bytes = g2_bytes_remaining(i); + + if (likely(bytes == 0)) { + struct dma_info *info = dev_id; + struct dma_channel *chan = info->channels + i; + + wake_up(&chan->wait_queue); + + return IRQ_HANDLED; + } + } + } + + return IRQ_NONE; +} static int g2_enable_dma(struct dma_channel *chan) { @@ -135,8 +149,14 @@ return 0; } +static int g2_get_residue(struct dma_channel *chan) +{ + return g2_bytes_remaining(chan->chan); +} + static struct dma_ops g2_dma_ops = { .xfer = g2_xfer_dma, + .get_residue = g2_get_residue, }; static struct dma_info g2_dma_info = { @@ -148,13 +168,22 @@ static int __init g2_dma_init(void) { - setup_irq(HW_EVENT_G2_DMA, &g2_dma_irq); + int ret; + + ret = request_irq(HW_EVENT_G2_DMA, g2_dma_interrupt, IRQF_DISABLED, + "g2 DMA handler", &g2_dma_info); + if (unlikely(ret)) + return -EINVAL; /* Magic */ g2_dma->wait_state = 27; g2_dma->magic = 0x4659404f; - return register_dmac(&g2_dma_info); + ret = register_dmac(&g2_dma_info); + if (unlikely(ret != 0)) + free_irq(HW_EVENT_G2_DMA, 0); + + return ret; } static void __exit g2_dma_exit(void) @@ -169,4 +198,3 @@ MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>"); MODULE_DESCRIPTION("G2 bus DMA driver"); MODULE_LICENSE("GPL"); -
diff --git a/arch/sh/drivers/dma/dma-pvr2.c b/arch/sh/drivers/dma/dma-pvr2.c index 30a580a..3b0b0f6 100644 --- a/arch/sh/drivers/dma/dma-pvr2.c +++ b/arch/sh/drivers/dma/dma-pvr2.c
@@ -18,8 +18,8 @@ #include <asm/dma.h> #include <asm/io.h> -static unsigned int xfer_complete = 0; -static int count = 0; +static unsigned int xfer_complete; +static int count; static irqreturn_t pvr2_dma_interrupt(int irq, void *dev_id, struct pt_regs *regs) { @@ -107,4 +107,3 @@ MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>"); MODULE_DESCRIPTION("NEC PowerVR 2 DMA driver"); MODULE_LICENSE("GPL"); -
diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c index e028a2d..cbbe8bc 100644 --- a/arch/sh/drivers/dma/dma-sh.c +++ b/arch/sh/drivers/dma/dma-sh.c
@@ -11,14 +11,10 @@ * License. See the file "COPYING" in the main directory of this archive * for more details. */ - #include <linux/init.h> -#include <linux/irq.h> #include <linux/interrupt.h> #include <linux/module.h> #include <asm/dreamcast/dma.h> -#include <asm/signal.h> -#include <asm/irq.h> #include <asm/dma.h> #include <asm/io.h> #include "dma-sh.h" @@ -84,18 +80,23 @@ static int sh_dmac_request_dma(struct dma_channel *chan) { - char name[32]; + if (unlikely(!chan->flags & DMA_TEI_CAPABLE)) + return 0; - snprintf(name, sizeof(name), "DMAC Transfer End (Channel %d)", + chan->name = kzalloc(32, GFP_KERNEL); + if (unlikely(chan->name == NULL)) + return -ENOMEM; + snprintf(chan->name, 32, "DMAC Transfer End (Channel %d)", chan->chan); return request_irq(get_dmte_irq(chan->chan), dma_tei, - IRQF_DISABLED, name, chan); + IRQF_DISABLED, chan->name, chan); } static void sh_dmac_free_dma(struct dma_channel *chan) { free_irq(get_dmte_irq(chan->chan), chan); + kfree(chan->name); } static void @@ -259,7 +260,7 @@ #ifdef CONFIG_CPU_SH4 make_ipr_irq(DMAE_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY); i = request_irq(DMAE_IRQ, dma_err, IRQF_DISABLED, "DMAC Address Error", 0); - if (i < 0) + if (unlikely(i < 0)) return i; #endif @@ -274,7 +275,7 @@ * been set. */ i = dmaor_reset(); - if (i < 0) + if (unlikely(i != 0)) return i; return register_dmac(info);
diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile index 365bc16..9e00cb8 100644 --- a/arch/sh/drivers/pci/Makefile +++ b/arch/sh/drivers/pci/Makefile
@@ -6,7 +6,8 @@ obj-$(CONFIG_PCI_AUTO) += pci-auto.o obj-$(CONFIG_CPU_SUBTYPE_ST40STB1) += pci-st40.o -obj-$(CONFIG_CPU_SUBTYPE_SH7751) += pci-sh7751.o +obj-$(CONFIG_CPU_SUBTYPE_SH7751) += pci-sh7751.o ops-sh4.o +obj-$(CONFIG_CPU_SUBTYPE_SH7780) += pci-sh7780.o ops-sh4.o obj-$(CONFIG_SH_DREAMCAST) += ops-dreamcast.o fixups-dreamcast.o \ dma-dreamcast.o @@ -14,3 +15,6 @@ obj-$(CONFIG_SH_BIGSUR) += ops-bigsur.o obj-$(CONFIG_SH_RTS7751R2D) += ops-rts7751r2d.o fixups-rts7751r2d.o obj-$(CONFIG_SH_SH03) += ops-sh03.o fixups-sh03.o +obj-$(CONFIG_SH_R7780RP) += ops-r7780rp.o fixups-r7780rp.o +obj-$(CONFIG_SH_TITAN) += ops-titan.o +obj-$(CONFIG_SH_LANDISK) += ops-landisk.o
diff --git a/arch/sh/drivers/pci/fixups-dreamcast.c b/arch/sh/drivers/pci/fixups-dreamcast.c index 63b1c6f..c0af5f7 100644 --- a/arch/sh/drivers/pci/fixups-dreamcast.c +++ b/arch/sh/drivers/pci/fixups-dreamcast.c
@@ -4,7 +4,7 @@ * PCI fixups for the Sega Dreamcast * * Copyright (C) 2001, 2002 M. R. Brown - * Copyright (C) 2002, 2003 Paul Mundt + * Copyright (C) 2002, 2003, 2006 Paul Mundt * * This file originally bore the message (with enclosed-$): * Id: pci.c,v 1.3 2003/05/04 19:29:46 lethal Exp @@ -45,36 +45,16 @@ printk("PCI: Failed resource fixup\n"); } } - DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, gapspci_fixup_resources); -void __init pcibios_fixup_bus(struct pci_bus *bus) +int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin) { - /* - * We don't have any sub bus to fix up, and this is a rather - * stupid place to put general device fixups. Don't do it. - * Use the pcibios_fixups table or suffer the consequences. + /* + * The interrupt routing semantics here are quite trivial. + * + * We basically only support one interrupt, so we only bother + * updating a device's interrupt line with this single shared + * interrupt. Keeps routing quite simple, doesn't it? */ + return GAPSPCI_IRQ; } - -void __init pcibios_fixup_irqs(void) -{ - struct pci_dev *dev = 0; - - for_each_pci_dev(dev) { - /* - * The interrupt routing semantics here are quite trivial. - * - * We basically only support one interrupt, so we only bother - * updating a device's interrupt line with this single shared - * interrupt. Keeps routing quite simple, doesn't it? - */ - printk(KERN_NOTICE "PCI: Fixing up IRQ routing for device %s\n", - pci_name(dev)); - - dev->irq = GAPSPCI_IRQ; - - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); - } -} -
diff --git a/arch/sh/drivers/pci/fixups-r7780rp.c b/arch/sh/drivers/pci/fixups-r7780rp.c new file mode 100644 index 0000000..3e321df --- /dev/null +++ b/arch/sh/drivers/pci/fixups-r7780rp.c
@@ -0,0 +1,45 @@ +/* + * arch/sh/drivers/pci/fixups-r7780rp.c + * + * Highlander R7780RP-1 PCI fixups + * + * Copyright (C) 2003 Lineo uSolutions, Inc. + * Copyright (C) 2004 - 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/pci.h> +#include "pci-sh4.h" +#include <asm/io.h> + +int pci_fixup_pcic(void) +{ + pci_write_reg(0x000043ff, SH4_PCIINTM); + pci_write_reg(0x0000380f, SH4_PCIAINTM); + + pci_write_reg(0xfbb00047, SH7780_PCICMD); + pci_write_reg(0x00000000, SH7780_PCIIBAR); + + pci_write_reg(0x00011912, SH7780_PCISVID); + pci_write_reg(0x08000000, SH7780_PCICSCR0); + pci_write_reg(0x0000001b, SH7780_PCICSAR0); + pci_write_reg(0xfd000000, SH7780_PCICSCR1); + pci_write_reg(0x0000000f, SH7780_PCICSAR1); + + pci_write_reg(0xfd000000, SH7780_PCIMBR0); + pci_write_reg(0x00fc0000, SH7780_PCIMBMR0); + +#ifdef CONFIG_32BIT + pci_write_reg(0xc0000000, SH7780_PCIMBR2); + pci_write_reg(0x20000000 - SH7780_PCI_IO_SIZE, SH7780_PCIMBMR2); +#endif + + /* Set IOBR for windows containing area specified in pci.h */ + pci_write_reg((PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE - 1)), + SH7780_PCIIOBR); + pci_write_reg(((SH7780_PCI_IO_SIZE-1) & (7<<18)), SH7780_PCIIOBMR); + + return 0; +}
diff --git a/arch/sh/drivers/pci/fixups-rts7751r2d.c b/arch/sh/drivers/pci/fixups-rts7751r2d.c index 0c590fc..e72ceb5 100644 --- a/arch/sh/drivers/pci/fixups-rts7751r2d.c +++ b/arch/sh/drivers/pci/fixups-rts7751r2d.c
@@ -10,8 +10,7 @@ * License. See the file "COPYING" in the main directory of this archive * for more details. */ -#include "pci-sh7751.h" -#include <asm/io.h> +#include "pci-sh4.h" #define PCIMCR_MRSET_OFF 0xBFFFFFFF #define PCIMCR_RFSH_OFF 0xFFFFFFFB @@ -22,22 +21,23 @@ bcr1 = inl(SH7751_BCR1); bcr1 |= 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */ - outl(bcr1, PCI_REG(SH7751_PCIBCR1)); + pci_write_reg(bcr1, SH4_PCIBCR1); /* Enable all interrupts, so we known what to fix */ - outl(0x0000c3ff, PCI_REG(SH7751_PCIINTM)); - outl(0x0000380f, PCI_REG(SH7751_PCIAINTM)); + pci_write_reg(0x0000c3ff, SH4_PCIINTM); + pci_write_reg(0x0000380f, SH4_PCIAINTM); - outl(0xfb900047, PCI_REG(SH7751_PCICONF1)); - outl(0xab000001, PCI_REG(SH7751_PCICONF4)); + pci_write_reg(0xfb900047, SH7751_PCICONF1); + pci_write_reg(0xab000001, SH7751_PCICONF4); mcr = inl(SH7751_MCR); mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF; - outl(mcr, PCI_REG(SH7751_PCIMCR)); + pci_write_reg(mcr, SH4_PCIMCR); - outl(0x0c000000, PCI_REG(SH7751_PCICONF5)); - outl(0xd0000000, PCI_REG(SH7751_PCICONF6)); - outl(0x0c000000, PCI_REG(SH7751_PCILAR0)); - outl(0x00000000, PCI_REG(SH7751_PCILAR1)); + pci_write_reg(0x0c000000, SH7751_PCICONF5); + pci_write_reg(0xd0000000, SH7751_PCICONF6); + pci_write_reg(0x0c000000, SH4_PCILAR0); + pci_write_reg(0x00000000, SH4_PCILAR1); + return 0; }
diff --git a/arch/sh/drivers/pci/fixups-sh03.c b/arch/sh/drivers/pci/fixups-sh03.c index 57ac26c..2e8a18b 100644 --- a/arch/sh/drivers/pci/fixups-sh03.c +++ b/arch/sh/drivers/pci/fixups-sh03.c
@@ -3,11 +3,7 @@ #include <linux/types.h> #include <linux/pci.h> -/* - * IRQ functions - */ - -int __init pcibios_map_platform_irq(u8 slot, u8 pin, struct pci_dev *dev) +int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin) { int irq; @@ -17,8 +13,9 @@ case 8: return 5; /* eth1 */ case 6: return 2; /* PCI bridge */ default: - printk("PCI: Bad IRQ mapping request for slot %d\n", slot); - return 2; + printk(KERN_ERR "PCI: Bad IRQ mapping request " + "for slot %d\n", slot); + return 2; } } else { switch (pin) { @@ -32,30 +29,3 @@ } return irq; } - -static u8 __init sh03_no_swizzle(struct pci_dev *dev, u8 *pin) -{ - /* no swizzling */ - return PCI_SLOT(dev->devfn); -} - -static int sh03_pci_lookup_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - int irq = -1; - - /* now lookup the actual IRQ on a platform specific basis (pci-'platform'.c) */ - irq = pcibios_map_platform_irq(slot, pin, dev); - if( irq < 0 ) { - pr_debug("PCI: Error mapping IRQ on device %s\n", pci_name(dev)); - return irq; - } - - pr_debug("Setting IRQ for slot %s to %d\n", pci_name(dev), irq); - - return irq; -} - -void __init pcibios_fixup_irqs(void) -{ - pci_fixup_irqs(sh03_no_swizzle, sh03_pci_lookup_irq); -}
diff --git a/arch/sh/drivers/pci/ops-bigsur.c b/arch/sh/drivers/pci/ops-bigsur.c index ae82c6c..5da501b 100644 --- a/arch/sh/drivers/pci/ops-bigsur.c +++ b/arch/sh/drivers/pci/ops-bigsur.c
@@ -10,15 +10,12 @@ * * PCI initialization for the Hitachi Big Sur Evaluation Board */ - #include <linux/kernel.h> #include <linux/types.h> #include <linux/init.h> -#include <linux/delay.h> #include <linux/pci.h> - #include <asm/io.h> -#include "pci-sh7751.h" +#include "pci-sh4.h" #include <asm/bigsur/bigsur.h> #define BIGSUR_PCI_IO 0x4000 @@ -41,11 +38,11 @@ extern struct pci_ops sh7751_pci_ops; struct pci_channel board_pci_channels[] = { - { &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, + { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, { 0, } }; -static struct sh7751_pci_address_map sh7751_pci_map = { +static struct sh4_pci_address_map sh7751_pci_map = { .window0 = { .base = SH7751_CS3_BASE_ADDR, .size = BIGSUR_LSR0_SIZE, @@ -58,7 +55,7 @@ }; /* - * Initialize the Big Sur PCI interface + * Initialize the Big Sur PCI interface * Setup hardware to be Central Funtion * Copy the BSR regs to the PCI interface * Setup PCI windows into local RAM @@ -68,15 +65,15 @@ return sh7751_pcic_init(&sh7751_pci_map); } -int pcibios_map_platform_irq(u8 slot, u8 pin) +int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) { - /* + /* * The Big Sur can be used in a CPCI chassis, but the SH7751 PCI * interface is on the wrong end of the board so that it can also * support a V320 CPI interface chip... Therefor the IRQ mapping is * somewhat use dependent... I'l assume a linear map for now, i.e. * INTA=slot0,pin0... INTD=slot3,pin0... - */ + */ int irq = (slot + pin-1) % 4 + BIGSUR_SH7751_PCI_IRQ_BASE; PCIDBG(2, "PCI: Mapping Big Sur IRQ for slot %d, pin %c to irq %d\n", @@ -84,4 +81,3 @@ return irq; } -
diff --git a/arch/sh/drivers/pci/ops-landisk.c b/arch/sh/drivers/pci/ops-landisk.c new file mode 100644 index 0000000..ada301c --- /dev/null +++ b/arch/sh/drivers/pci/ops-landisk.c
@@ -0,0 +1,68 @@ +/* + * arch/sh/drivers/pci/ops-landisk.c + * + * PCI initialization for the I-O DATA Device, Inc. LANDISK board + * + * Copyright (C) 2006 kogiidena + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + */ +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pci.h> +#include "pci-sh4.h" + +static struct resource sh7751_io_resource = { + .name = "SH7751 IO", + .start = 0x4000, + .end = 0x4000 + SH7751_PCI_IO_SIZE - 1, + .flags = IORESOURCE_IO +}; + +static struct resource sh7751_mem_resource = { + .name = "SH7751 mem", + .start = SH7751_PCI_MEMORY_BASE, + .end = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM +}; + +struct pci_channel board_pci_channels[] = { + {&sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0x3ff}, + {NULL, NULL, NULL, 0, 0}, +}; + +static struct sh4_pci_address_map sh7751_pci_map = { + .window0 = { + .base = SH7751_CS3_BASE_ADDR, + .size = (64 << 20), /* 64MB */ + }, + + .flags = SH4_PCIC_NO_RESET, +}; + +int __init pcibios_init_platform(void) +{ + return sh7751_pcic_init(&sh7751_pci_map); +} + +int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) +{ + /* + * slot0: pin1-4 = irq5,6,7,8 + * slot1: pin1-4 = irq6,7,8,5 + * slot2: pin1-4 = irq7,8,5,6 + * slot3: pin1-4 = irq8,5,6,7 + */ + int irq = ((slot + pin - 1) & 0x3) + 5; + + if ((slot | (pin - 1)) > 0x3) { + printk("PCI: Bad IRQ mapping request for slot %d pin %c\n", + slot, pin - 1 + 'A'); + return -1; + } + return irq; +}
diff --git a/arch/sh/drivers/pci/ops-r7780rp.c b/arch/sh/drivers/pci/ops-r7780rp.c new file mode 100644 index 0000000..554d5ed --- /dev/null +++ b/arch/sh/drivers/pci/ops-r7780rp.c
@@ -0,0 +1,75 @@ +/* + * Author: Ian DaSilva (idasilva@mvista.com) + * + * Highly leveraged from pci-bigsur.c, written by Dustin McIntire. + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + * + * PCI initialization for the Renesas SH7780 Highlander R7780RP-1 board + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pci.h> +#include <asm/r7780rp/r7780rp.h> +#include <asm/io.h> +#include "pci-sh4.h" + +int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) +{ + switch (slot) { + case 0: return IRQ_PCISLOT1; /* PCI Interrupt #1 */ + case 1: return IRQ_PCISLOT2; /* PCI Interrupt #2 */ + case 2: return IRQ_PCISLOT3; /* PCI Interrupt #3 */ + case 3: return IRQ_PCISLOT4; /* PCI Interrupt E4 */ + default: + printk(KERN_ERR "PCI: Bad IRQ mapping " + "request for slot %d, func %d\n", slot, pin-1); + return -1; + } +} + +static struct resource sh7780_io_resource = { + .name = "SH7780_IO", + .start = 0x2000, + .end = 0x2000 + SH7780_PCI_IO_SIZE - 1, + .flags = IORESOURCE_IO +}; + +static struct resource sh7780_mem_resource = { + .name = "SH7780_mem", + .start = SH7780_PCI_MEMORY_BASE, + .end = SH7780_PCI_MEMORY_BASE + SH7780_PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM +}; + +extern struct pci_ops sh7780_pci_ops; + +struct pci_channel board_pci_channels[] = { + { &sh4_pci_ops, &sh7780_io_resource, &sh7780_mem_resource, 0, 0xff }, + { NULL, NULL, NULL, 0, 0 }, +}; +EXPORT_SYMBOL(board_pci_channels); + +static struct sh4_pci_address_map sh7780_pci_map = { + .window0 = { + .base = SH7780_CS2_BASE_ADDR, + .size = 0x04000000, + }, + + .window1 = { + .base = SH7780_CS3_BASE_ADDR, + .size = 0x04000000, + }, + + .flags = SH4_PCIC_NO_RESET, +}; + +int __init pcibios_init_platform(void) +{ + return sh7780_pcic_init(&sh7780_pci_map); +}
diff --git a/arch/sh/drivers/pci/ops-rts7751r2d.c b/arch/sh/drivers/pci/ops-rts7751r2d.c index 83171d1..88f44e2 100644 --- a/arch/sh/drivers/pci/ops-rts7751r2d.c +++ b/arch/sh/drivers/pci/ops-rts7751r2d.c
@@ -17,12 +17,11 @@ #include <linux/delay.h> #include <linux/pci.h> #include <linux/module.h> - -#include <asm/io.h> -#include "pci-sh7751.h" #include <asm/rts7751r2d/rts7751r2d.h> +#include <asm/io.h> +#include "pci-sh4.h" -int __init pcibios_map_platform_irq(u8 slot, u8 pin) +int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) { switch (slot) { case 0: return IRQ_PCISLOT1; /* PCI Extend slot #1 */ @@ -52,12 +51,12 @@ extern struct pci_ops sh7751_pci_ops; struct pci_channel board_pci_channels[] = { - { &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, + { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, { NULL, NULL, NULL, 0, 0 }, }; EXPORT_SYMBOL(board_pci_channels); -static struct sh7751_pci_address_map sh7751_pci_map = { +static struct sh4_pci_address_map sh7751_pci_map = { .window0 = { .base = SH7751_CS3_BASE_ADDR, .size = 0x04000000, @@ -68,7 +67,7 @@ .size = 0x00000000, /* Unused */ }, - .flags = SH7751_PCIC_NO_RESET, + .flags = SH4_PCIC_NO_RESET, }; int __init pcibios_init_platform(void)
diff --git a/arch/sh/drivers/pci/ops-sh4.c b/arch/sh/drivers/pci/ops-sh4.c new file mode 100644 index 0000000..2d437100 --- /dev/null +++ b/arch/sh/drivers/pci/ops-sh4.c
@@ -0,0 +1,164 @@ +/* + * Generic SH-4 / SH-4A PCIC operations (SH7751, SH7780). + * + * Copyright (C) 2002 - 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License v2. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/pci.h> +#include <asm/addrspace.h> +#include <asm/io.h> +#include "pci-sh4.h" + +/* + * Direct access to PCI hardware... + */ +#define CONFIG_CMD(bus, devfn, where) \ + P1SEGADDR((bus->number << 16) | (devfn << 8) | (where & ~3)) + +static DEFINE_SPINLOCK(sh4_pci_lock); + +/* + * Functions for accessing PCI configuration space with type 1 accesses + */ +static int sh4_pci_read(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 *val) +{ + unsigned long flags; + u32 data; + + /* + * PCIPDR may only be accessed as 32 bit words, + * so we must do byte alignment by hand + */ + spin_lock_irqsave(&sh4_pci_lock, flags); + pci_write_reg(CONFIG_CMD(bus, devfn, where), SH4_PCIPAR); + data = pci_read_reg(SH4_PCIPDR); + spin_unlock_irqrestore(&sh4_pci_lock, flags); + + switch (size) { + case 1: + *val = (data >> ((where & 3) << 3)) & 0xff; + break; + case 2: + *val = (data >> ((where & 2) << 3)) & 0xffff; + break; + case 4: + *val = data; + break; + default: + return PCIBIOS_FUNC_NOT_SUPPORTED; + } + + return PCIBIOS_SUCCESSFUL; +} + +/* + * Since SH4 only does 32bit access we'll have to do a read, + * mask,write operation. + * We'll allow an odd byte offset, though it should be illegal. + */ +static int sh4_pci_write(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 val) +{ + unsigned long flags; + int shift; + u32 data; + + spin_lock_irqsave(&sh4_pci_lock, flags); + pci_write_reg(CONFIG_CMD(bus, devfn, where), SH4_PCIPAR); + data = pci_read_reg(SH4_PCIPDR); + spin_unlock_irqrestore(&sh4_pci_lock, flags); + + switch (size) { + case 1: + shift = (where & 3) << 3; + data &= ~(0xff << shift); + data |= ((val & 0xff) << shift); + break; + case 2: + shift = (where & 2) << 3; + data &= ~(0xffff << shift); + data |= ((val & 0xffff) << shift); + break; + case 4: + data = val; + break; + default: + return PCIBIOS_FUNC_NOT_SUPPORTED; + } + + pci_write_reg(data, SH4_PCIPDR); + + return PCIBIOS_SUCCESSFUL; +} + +struct pci_ops sh4_pci_ops = { + .read = sh4_pci_read, + .write = sh4_pci_write, +}; + +/* + * Not really related to pci_ops, but it's common and not worth shoving + * somewhere else for now.. + */ +static unsigned int pci_probe = PCI_PROBE_CONF1; + +int __init sh4_pci_check_direct(void) +{ + /* + * Check if configuration works. + */ + if (pci_probe & PCI_PROBE_CONF1) { + unsigned int tmp = pci_read_reg(SH4_PCIPAR); + + pci_write_reg(P1SEG, SH4_PCIPAR); + + if (pci_read_reg(SH4_PCIPAR) == P1SEG) { + pci_write_reg(tmp, SH4_PCIPAR); + printk(KERN_INFO "PCI: Using configuration type 1\n"); + request_region(PCI_REG(SH4_PCIPAR), 8, "PCI conf1"); + + return 0; + } + + pci_write_reg(tmp, SH4_PCIPAR); + } + + pr_debug("PCI: pci_check_direct failed\n"); + return -EINVAL; +} + +/* Handle generic fixups */ +static void __init pci_fixup_ide_bases(struct pci_dev *d) +{ + int i; + + /* + * PCI IDE controllers use non-standard I/O port decoding, respect it. + */ + if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE) + return; + pr_debug("PCI: IDE base address fixup for %s\n", pci_name(d)); + for(i = 0; i < 4; i++) { + struct resource *r = &d->resource[i]; + + if ((r->start & ~0x80) == 0x374) { + r->start |= 2; + r->end = r->start; + } + } +} +DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases); + +char * __init pcibios_setup(char *str) +{ + if (!strcmp(str, "off")) { + pci_probe = 0; + return NULL; + } + + return str; +}
diff --git a/arch/sh/drivers/pci/ops-snapgear.c b/arch/sh/drivers/pci/ops-snapgear.c index 3cbd14d..53dd893 100644 --- a/arch/sh/drivers/pci/ops-snapgear.c +++ b/arch/sh/drivers/pci/ops-snapgear.c
@@ -2,7 +2,7 @@ * arch/sh/drivers/pci/ops-snapgear.c * * Author: David McCullough <davidm@snapgear.com> - * + * * Ported to new API by Paul Mundt <lethal@linux-sh.org> * * Highly leveraged from pci-bigsur.c, written by Dustin McIntire. @@ -12,15 +12,11 @@ * * PCI initialization for the SnapGear boards */ - #include <linux/kernel.h> #include <linux/types.h> #include <linux/init.h> -#include <linux/delay.h> #include <linux/pci.h> - -#include <asm/io.h> -#include "pci-sh7751.h" +#include "pci-sh4.h" #define SNAPGEAR_PCI_IO 0x4000 #define SNAPGEAR_PCI_MEM 0xfd000000 @@ -43,14 +39,12 @@ .flags = IORESOURCE_MEM, }; -extern struct pci_ops sh7751_pci_ops; - struct pci_channel board_pci_channels[] = { - { &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, + { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, { 0, } }; -static struct sh7751_pci_address_map sh7751_pci_map = { +static struct sh4_pci_address_map sh7751_pci_map = { .window0 = { .base = SH7751_CS2_BASE_ADDR, .size = SNAPGEAR_LSR0_SIZE, @@ -61,11 +55,11 @@ .size = SNAPGEAR_LSR1_SIZE, }, - .flags = SH7751_PCIC_NO_RESET, + .flags = SH4_PCIC_NO_RESET, }; /* - * Initialize the SnapGear PCI interface + * Initialize the SnapGear PCI interface * Setup hardware to be Central Funtion * Copy the BSR regs to the PCI interface * Setup PCI windows into local RAM @@ -75,7 +69,7 @@ return sh7751_pcic_init(&sh7751_pci_map); } -int __init pcibios_map_platform_irq(u8 slot, u8 pin) +int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) { int irq = -1; @@ -98,4 +92,3 @@ { /* Nothing to fixup .. */ } -
diff --git a/arch/sh/drivers/pci/ops-titan.c b/arch/sh/drivers/pci/ops-titan.c new file mode 100644 index 0000000..c6097bc --- /dev/null +++ b/arch/sh/drivers/pci/ops-titan.c
@@ -0,0 +1,83 @@ +/* + * arch/sh/drivers/pci/ops-titan.c + * + * Ported to new API by Paul Mundt <lethal@linux-sh.org> + * + * Modified from ops-snapgear.c written by David McCullough + * Highly leveraged from pci-bigsur.c, written by Dustin McIntire. + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + * + * PCI initialization for the Titan boards + */ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <asm/io.h> +#include <asm/titan.h> +#include "pci-sh4.h" + +int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) +{ + int irq = -1; + + switch (slot) { + case 0: irq = TITAN_IRQ_WAN; break; /* eth0 (WAN) */ + case 1: irq = TITAN_IRQ_LAN; break; /* eth1 (LAN) */ + case 2: irq = TITAN_IRQ_MPCIA; break; /* mPCI A */ + case 3: irq = TITAN_IRQ_MPCIB; break; /* mPCI B */ + case 4: irq = TITAN_IRQ_USB; break; /* USB */ + default: + printk(KERN_INFO "PCI: Bad IRQ mapping " + "request for slot %d\n", slot); + return -1; + } + + printk("PCI: Mapping TITAN IRQ for slot %d, pin %c to irq %d\n", + slot, pin - 1 + 'A', irq); + + return irq; +} + +static struct resource sh7751_io_resource = { + .name = "SH7751_IO", + .start = SH7751_PCI_IO_BASE, + .end = SH7751_PCI_IO_BASE + SH7751_PCI_IO_SIZE - 1, + .flags = IORESOURCE_IO +}; + +static struct resource sh7751_mem_resource = { + .name = "SH7751_mem", + .start = SH7751_PCI_MEMORY_BASE, + .end = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM +}; + +struct pci_channel board_pci_channels[] = { + { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff }, + { NULL, NULL, NULL, 0, 0 }, +}; +EXPORT_SYMBOL(board_pci_channels); + +static struct sh4_pci_address_map sh7751_pci_map = { + .window0 = { + .base = SH7751_CS2_BASE_ADDR, + .size = SH7751_MEM_REGION_SIZE*2, /* cs2 and cs3 */ + }, + + .window1 = { + .base = SH7751_CS2_BASE_ADDR, + .size = SH7751_MEM_REGION_SIZE*2, + }, + + .flags = SH4_PCIC_NO_RESET, +}; + +int __init pcibios_init_platform(void) +{ + return sh7751_pcic_init(&sh7751_pci_map); +}
diff --git a/arch/sh/drivers/pci/pci-auto.c b/arch/sh/drivers/pci/pci-auto.c index 4cef4d1..ecf1634 100644 --- a/arch/sh/drivers/pci/pci-auto.c +++ b/arch/sh/drivers/pci/pci-auto.c
@@ -45,11 +45,11 @@ #include <linux/types.h> #include <linux/pci.h> -#undef DEBUG -#ifdef DEBUG +#define DEBUG +#ifdef DEBUG #define DBG(x...) printk(x) #else -#define DBG(x...) +#define DBG(x...) #endif /* @@ -102,7 +102,7 @@ static u32 pciauto_lower_memspc; static u32 pciauto_upper_memspc; -static void __init +static void __init pciauto_setup_bars(struct pci_channel *hose, int top_bus, int current_bus, @@ -116,7 +116,6 @@ int found_mem64 = 0; for (bar = PCI_BASE_ADDRESS_0; bar <= bar_limit; bar+=4) { -#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D) u32 bar_addr; /* Read the old BAR value */ @@ -125,7 +124,6 @@ pci_devfn, bar, &bar_addr); -#endif /* Tickle the BAR and get the response */ early_write_config_dword(hose, top_bus, @@ -140,8 +138,7 @@ bar, &bar_response); -#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D) - /* + /* * Write the old BAR value back out, only update the BAR * if we implicitly want resources to be updated, which * is done by the generic code further down. -- PFM. @@ -151,7 +148,6 @@ pci_devfn, bar, bar_addr); -#endif /* If BAR is not implemented go to the next BAR */ if (!bar_response) @@ -177,7 +173,7 @@ PCI_BASE_ADDRESS_MEM_TYPE_64) found_mem64 = 1; - addr_mask = PCI_BASE_ADDRESS_MEM_MASK; + addr_mask = PCI_BASE_ADDRESS_MEM_MASK; upper_limit = &pciauto_upper_memspc; lower_limit = &pciauto_lower_memspc; DBG(" Mem"); @@ -193,22 +189,22 @@ if ((bar_value + bar_size) > *upper_limit) { if (bar_response & PCI_BASE_ADDRESS_SPACE) { if (io_resource_inuse->child) { - io_resource_inuse = + io_resource_inuse = io_resource_inuse->child; - pciauto_lower_iospc = + pciauto_lower_iospc = io_resource_inuse->start; - pciauto_upper_iospc = + pciauto_upper_iospc = io_resource_inuse->end + 1; goto retry; } } else { if (mem_resource_inuse->child) { - mem_resource_inuse = + mem_resource_inuse = mem_resource_inuse->child; - pciauto_lower_memspc = + pciauto_lower_memspc = mem_resource_inuse->start; - pciauto_upper_memspc = + pciauto_upper_memspc = mem_resource_inuse->end + 1; goto retry; } @@ -230,7 +226,7 @@ * If we are a 64-bit decoder then increment to the * upper 32 bits of the bar and force it to locate * in the lower 4GB of memory. - */ + */ if (found_mem64) { bar += 4; early_write_config_dword(hose, top_bus, @@ -362,7 +358,6 @@ { u32 temp; -#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D) /* * [jsun] we always bump up baselines a little, so that if there * nothing behind P2P bridge, we don't wind up overlapping IO/MEM @@ -370,7 +365,6 @@ */ pciauto_lower_memspc += 1; pciauto_lower_iospc += 1; -#endif /* * Configure subordinate bus number. The PCI subsystem @@ -396,11 +390,6 @@ * configured by this routine to happily live behind a * P2P bridge in a system. */ -#if defined(CONFIG_SH_HS7751RVOIP) || defined(CONFIG_SH_RTS7751R2D) - pciauto_lower_memspc += 0x00400000; - pciauto_lower_iospc += 0x00004000; -#endif - /* Align memory and I/O to 4KB and 4 byte boundaries. */ pciauto_lower_memspc = (pciauto_lower_memspc + (0x1000 - 1)) & ~(0x1000 - 1); @@ -433,12 +422,12 @@ int devfn_stop = 0xff; sub_bus = current_bus; - + if (hose->first_devfn) devfn_start = hose->first_devfn; if (hose->last_devfn) devfn_stop = hose->last_devfn; - + for (pci_devfn=devfn_start; pci_devfn<devfn_stop; pci_devfn++) { if (PCI_FUNC(pci_devfn) && !found_multi) @@ -471,9 +460,6 @@ if ((pci_class >> 16) == PCI_CLASS_BRIDGE_PCI) { DBG(" Bridge: primary=%.2x, secondary=%.2x\n", current_bus, sub_bus + 1); -#if defined(CONFIG_SH_HS7751RVOIP) || defined(CONFIG_SH_RTS7751R2D) - pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_1); -#endif pciauto_prescan_setup_bridge(hose, top_bus, current_bus, pci_devfn, sub_bus); DBG("Scanning sub bus %.2x, I/O 0x%.8x, Mem 0x%.8x\n", @@ -490,10 +476,10 @@ DBG("PCI Autoconfig: Found CardBus bridge, device %d function %d\n", PCI_SLOT(pci_devfn), PCI_FUNC(pci_devfn)); /* Place CardBus Socket/ExCA registers */ pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_0); - + pciauto_prescan_setup_cardbus_bridge(hose, top_bus, current_bus, pci_devfn, sub_bus); - + DBG("Scanning sub bus %.2x, I/O 0x%.8x, Mem 0x%.8x\n", sub_bus + 1, pciauto_lower_iospc, pciauto_lower_memspc);
diff --git a/arch/sh/drivers/pci/pci-sh4.h b/arch/sh/drivers/pci/pci-sh4.h new file mode 100644 index 0000000..5a61d60 --- /dev/null +++ b/arch/sh/drivers/pci/pci-sh4.h
@@ -0,0 +1,180 @@ +#ifndef __PCI_SH4_H +#define __PCI_SH4_H + +#ifdef CONFIG_CPU_SUBTYPE_SH7780 +#include "pci-sh7780.h" +#else +#include "pci-sh7751.h" +#endif + +#include <asm/io.h> + +/* startup values */ +#define PCI_PROBE_BIOS 1 +#define PCI_PROBE_CONF1 2 +#define PCI_PROBE_CONF2 4 +#define PCI_NO_SORT 0x100 +#define PCI_BIOS_SORT 0x200 +#define PCI_NO_CHECKS 0x400 +#define PCI_ASSIGN_ROMS 0x1000 +#define PCI_BIOS_IRQ_SCAN 0x2000 + +#define SH4_PCICR 0x100 /* PCI Control Register */ + #define SH4_PCICR_PREFIX 0xA5000000 /* CR prefix for write */ + #define SH4_PCICR_FTO 0x00000400 /* TRDY/IRDY Enable */ + #define SH4_PCICR_TRSB 0x00000200 /* Target Read Single */ + #define SH4_PCICR_BSWP 0x00000100 /* Target Byte Swap */ + #define SH4_PCICR_PLUP 0x00000080 /* Enable PCI Pullup */ + #define SH4_PCICR_ARBM 0x00000040 /* PCI Arbitration Mode */ + #define SH4_PCICR_MD 0x00000030 /* MD9 and MD10 status */ + #define SH4_PCICR_SERR 0x00000008 /* SERR output assert */ + #define SH4_PCICR_INTA 0x00000004 /* INTA output assert */ + #define SH4_PCICR_PRST 0x00000002 /* PCI Reset Assert */ + #define SH4_PCICR_CFIN 0x00000001 /* Central Fun. Init Done */ +#define SH4_PCILSR0 0x104 /* PCI Local Space Register0 */ +#define SH4_PCILSR1 0x108 /* PCI Local Space Register1 */ +#define SH4_PCILAR0 0x10C /* PCI Local Addr Register1 */ +#define SH4_PCILAR1 0x110 /* PCI Local Addr Register1 */ +#define SH4_PCIINT 0x114 /* PCI Interrupt Register */ + #define SH4_PCIINT_MLCK 0x00008000 /* Master Lock Error */ + #define SH4_PCIINT_TABT 0x00004000 /* Target Abort Error */ + #define SH4_PCIINT_TRET 0x00000200 /* Target Retry Error */ + #define SH4_PCIINT_MFDE 0x00000100 /* Master Func. Disable Error */ + #define SH4_PCIINT_PRTY 0x00000080 /* Address Parity Error */ + #define SH4_PCIINT_SERR 0x00000040 /* SERR Detection Error */ + #define SH4_PCIINT_TWDP 0x00000020 /* Tgt. Write Parity Error */ + #define SH4_PCIINT_TRDP 0x00000010 /* Tgt. Read Parity Err Det. */ + #define SH4_PCIINT_MTABT 0x00000008 /* Master-Tgt. Abort Error */ + #define SH4_PCIINT_MMABT 0x00000004 /* Master-Master Abort Error */ + #define SH4_PCIINT_MWPD 0x00000002 /* Master Write PERR Detect */ + #define SH4_PCIINT_MRPD 0x00000001 /* Master Read PERR Detect */ +#define SH4_PCIINTM 0x118 /* PCI Interrupt Mask */ +#define SH4_PCIALR 0x11C /* Error Address Register */ +#define SH4_PCICLR 0x120 /* Error Command/Data */ + #define SH4_PCICLR_MPIO 0x80000000 + #define SH4_PCICLR_MDMA0 0x40000000 /* DMA0 Transfer Error */ + #define SH4_PCICLR_MDMA1 0x20000000 /* DMA1 Transfer Error */ + #define SH4_PCICLR_MDMA2 0x10000000 /* DMA2 Transfer Error */ + #define SH4_PCICLR_MDMA3 0x08000000 /* DMA3 Transfer Error */ + #define SH4_PCICLR_TGT 0x04000000 /* Target Transfer Error */ + #define SH4_PCICLR_CMDL 0x0000000F /* PCI Command at Error */ +#define SH4_PCIAINT 0x130 /* Arbiter Interrupt Register */ + #define SH4_PCIAINT_MBKN 0x00002000 /* Master Broken Interrupt */ + #define SH4_PCIAINT_TBTO 0x00001000 /* Target Bus Time Out */ + #define SH4_PCIAINT_MBTO 0x00001000 /* Master Bus Time Out */ + #define SH4_PCIAINT_TABT 0x00000008 /* Target Abort */ + #define SH4_PCIAINT_MABT 0x00000004 /* Master Abort */ + #define SH4_PCIAINT_RDPE 0x00000002 /* Read Data Parity Error */ + #define SH4_PCIAINT_WDPE 0x00000001 /* Write Data Parity Error */ +#define SH4_PCIAINTM 0x134 /* Arbiter Int. Mask Register */ +#define SH4_PCIBMLR 0x138 /* Error Bus Master Register */ + #define SH4_PCIBMLR_REQ4 0x00000010 /* REQ4 bus master at error */ + #define SH4_PCIBMLR_REQ3 0x00000008 /* REQ3 bus master at error */ + #define SH4_PCIBMLR_REQ2 0x00000004 /* REQ2 bus master at error */ + #define SH4_PCIBMLR_REQ1 0x00000002 /* REQ1 bus master at error */ + #define SH4_PCIBMLR_REQ0 0x00000001 /* REQ0 bus master at error */ +#define SH4_PCIDMABT 0x140 /* DMA Transfer Arb. Register */ + #define SH4_PCIDMABT_RRBN 0x00000001 /* DMA Arbitor Round-Robin */ +#define SH4_PCIDPA0 0x180 /* DMA0 Transfer Addr. */ +#define SH4_PCIDLA0 0x184 /* DMA0 Local Addr. */ +#define SH4_PCIDTC0 0x188 /* DMA0 Transfer Cnt. */ +#define SH4_PCIDCR0 0x18C /* DMA0 Control Register */ + #define SH4_PCIDCR_ALGN 0x00000600 /* DMA Alignment Mode */ + #define SH4_PCIDCR_MAST 0x00000100 /* DMA Termination Type */ + #define SH4_PCIDCR_INTM 0x00000080 /* DMA Interrupt Done Mask*/ + #define SH4_PCIDCR_INTS 0x00000040 /* DMA Interrupt Done Status */ + #define SH4_PCIDCR_LHLD 0x00000020 /* Local Address Control */ + #define SH4_PCIDCR_PHLD 0x00000010 /* PCI Address Control*/ + #define SH4_PCIDCR_IOSEL 0x00000008 /* PCI Address Space Type */ + #define SH4_PCIDCR_DIR 0x00000004 /* DMA Transfer Direction */ + #define SH4_PCIDCR_STOP 0x00000002 /* Force DMA Stop */ + #define SH4_PCIDCR_STRT 0x00000001 /* DMA Start */ +#define SH4_PCIDPA1 0x190 /* DMA1 Transfer Addr. */ +#define SH4_PCIDLA1 0x194 /* DMA1 Local Addr. */ +#define SH4_PCIDTC1 0x198 /* DMA1 Transfer Cnt. */ +#define SH4_PCIDCR1 0x19C /* DMA1 Control Register */ +#define SH4_PCIDPA2 0x1A0 /* DMA2 Transfer Addr. */ +#define SH4_PCIDLA2 0x1A4 /* DMA2 Local Addr. */ +#define SH4_PCIDTC2 0x1A8 /* DMA2 Transfer Cnt. */ +#define SH4_PCIDCR2 0x1AC /* DMA2 Control Register */ +#define SH4_PCIDPA3 0x1B0 /* DMA3 Transfer Addr. */ +#define SH4_PCIDLA3 0x1B4 /* DMA3 Local Addr. */ +#define SH4_PCIDTC3 0x1B8 /* DMA3 Transfer Cnt. */ +#define SH4_PCIDCR3 0x1BC /* DMA3 Control Register */ +#define SH4_PCIPAR 0x1C0 /* PIO Address Register */ + #define SH4_PCIPAR_CFGEN 0x80000000 /* Configuration Enable */ + #define SH4_PCIPAR_BUSNO 0x00FF0000 /* Config. Bus Number */ + #define SH4_PCIPAR_DEVNO 0x0000FF00 /* Config. Device Number */ + #define SH4_PCIPAR_REGAD 0x000000FC /* Register Address Number */ +#define SH4_PCIMBR 0x1C4 /* Memory Base Address */ + #define SH4_PCIMBR_MASK 0xFF000000 /* Memory Space Mask */ + #define SH4_PCIMBR_LOCK 0x00000001 /* Lock Memory Space */ +#define SH4_PCIIOBR 0x1C8 /* I/O Base Address Register */ + #define SH4_PCIIOBR_MASK 0xFFFC0000 /* IO Space Mask */ + #define SH4_PCIIOBR_LOCK 0x00000001 /* Lock IO Space */ +#define SH4_PCIPINT 0x1CC /* Power Mgmnt Int. Register */ + #define SH4_PCIPINT_D3 0x00000002 /* D3 Pwr Mgmt. Interrupt */ + #define SH4_PCIPINT_D0 0x00000001 /* D0 Pwr Mgmt. Interrupt */ +#define SH4_PCIPINTM 0x1D0 /* Power Mgmnt Mask Register */ +#define SH4_PCICLKR 0x1D4 /* Clock Ctrl. Register */ + #define SH4_PCICLKR_PCSTP 0x00000002 /* PCI Clock Stop */ + #define SH4_PCICLKR_BCSTP 0x00000001 /* BCLK Clock Stop */ +/* For definitions of BCR, MCR see ... */ +#define SH4_PCIBCR1 0x1E0 /* Memory BCR1 Register */ + #define SH4_PCIMBR0 SH4_PCIBCR1 +#define SH4_PCIBCR2 0x1E4 /* Memory BCR2 Register */ + #define SH4_PCIMBMR0 SH4_PCIBCR2 +#define SH4_PCIWCR1 0x1E8 /* Wait Control 1 Register */ +#define SH4_PCIWCR2 0x1EC /* Wait Control 2 Register */ +#define SH4_PCIWCR3 0x1F0 /* Wait Control 3 Register */ + #define SH4_PCIMBR2 SH4_PCIWCR3 +#define SH4_PCIMCR 0x1F4 /* Memory Control Register */ +#define SH4_PCIBCR3 0x1f8 /* Memory BCR3 Register */ +#define SH4_PCIPCTR 0x200 /* Port Control Register */ + #define SH4_PCIPCTR_P2EN 0x000400000 /* Port 2 Enable */ + #define SH4_PCIPCTR_P1EN 0x000200000 /* Port 1 Enable */ + #define SH4_PCIPCTR_P0EN 0x000100000 /* Port 0 Enable */ + #define SH4_PCIPCTR_P2UP 0x000000020 /* Port2 Pull Up Enable */ + #define SH4_PCIPCTR_P2IO 0x000000010 /* Port2 Output Enable */ + #define SH4_PCIPCTR_P1UP 0x000000008 /* Port1 Pull Up Enable */ + #define SH4_PCIPCTR_P1IO 0x000000004 /* Port1 Output Enable */ + #define SH4_PCIPCTR_P0UP 0x000000002 /* Port0 Pull Up Enable */ + #define SH4_PCIPCTR_P0IO 0x000000001 /* Port0 Output Enable */ +#define SH4_PCIPDTR 0x204 /* Port Data Register */ + #define SH4_PCIPDTR_PB5 0x000000020 /* Port 5 Enable */ + #define SH4_PCIPDTR_PB4 0x000000010 /* Port 4 Enable */ + #define SH4_PCIPDTR_PB3 0x000000008 /* Port 3 Enable */ + #define SH4_PCIPDTR_PB2 0x000000004 /* Port 2 Enable */ + #define SH4_PCIPDTR_PB1 0x000000002 /* Port 1 Enable */ + #define SH4_PCIPDTR_PB0 0x000000001 /* Port 0 Enable */ +#define SH4_PCIPDR 0x220 /* Port IO Data Register */ + +/* Flags */ +#define SH4_PCIC_NO_RESET 0x0001 + +/* arch/sh/kernel/drivers/pci/ops-sh4.c */ +extern struct pci_ops sh4_pci_ops; +int sh4_pci_check_direct(void); +int pci_fixup_pcic(void); + +struct sh4_pci_address_space { + unsigned long base; + unsigned long size; +}; + +struct sh4_pci_address_map { + struct sh4_pci_address_space window0; + struct sh4_pci_address_space window1; + unsigned long flags; +}; + +static inline void pci_write_reg(unsigned long val, unsigned long reg) +{ + outl(val, PCI_REG(reg)); +} + +static inline unsigned long pci_read_reg(unsigned long reg) +{ + return inl(PCI_REG(reg)); +} +#endif /* __PCI_SH4_H */
diff --git a/arch/sh/drivers/pci/pci-sh7751.c b/arch/sh/drivers/pci/pci-sh7751.c index 682f3da..dbe8378 100644 --- a/arch/sh/drivers/pci/pci-sh7751.c +++ b/arch/sh/drivers/pci/pci-sh7751.c
@@ -15,180 +15,14 @@ #undef DEBUG -#include <linux/types.h> -#include <linux/kernel.h> #include <linux/init.h> #include <linux/pci.h> -#include <linux/sched.h> -#include <linux/ioport.h> +#include <linux/types.h> #include <linux/errno.h> -#include <linux/irq.h> #include <linux/delay.h> - -#include <asm/machvec.h> +#include "pci-sh4.h" +#include <asm/addrspace.h> #include <asm/io.h> -#include "pci-sh7751.h" - -static unsigned int pci_probe = PCI_PROBE_CONF1; -extern int pci_fixup_pcic(void); - -void pcibios_fixup_irqs(void) __attribute__ ((weak)); - -/* - * Direct access to PCI hardware... - */ - -#define CONFIG_CMD(bus, devfn, where) (0x80000000 | (bus->number << 16) | (devfn << 8) | (where & ~3)) - -/* - * Functions for accessing PCI configuration space with type 1 accesses - */ -static int sh7751_pci_read(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 *val) -{ - unsigned long flags; - u32 data; - - /* - * PCIPDR may only be accessed as 32 bit words, - * so we must do byte alignment by hand - */ - local_irq_save(flags); - outl(CONFIG_CMD(bus,devfn,where), PCI_REG(SH7751_PCIPAR)); - data = inl(PCI_REG(SH7751_PCIPDR)); - local_irq_restore(flags); - - switch (size) { - case 1: - *val = (data >> ((where & 3) << 3)) & 0xff; - break; - case 2: - *val = (data >> ((where & 2) << 3)) & 0xffff; - break; - case 4: - *val = data; - break; - default: - return PCIBIOS_FUNC_NOT_SUPPORTED; - } - - return PCIBIOS_SUCCESSFUL; -} - -/* - * Since SH7751 only does 32bit access we'll have to do a read, - * mask,write operation. - * We'll allow an odd byte offset, though it should be illegal. - */ -static int sh7751_pci_write(struct pci_bus *bus, unsigned int devfn, - int where, int size, u32 val) -{ - unsigned long flags; - int shift; - u32 data; - - local_irq_save(flags); - outl(CONFIG_CMD(bus,devfn,where), PCI_REG(SH7751_PCIPAR)); - data = inl(PCI_REG(SH7751_PCIPDR)); - local_irq_restore(flags); - - switch (size) { - case 1: - shift = (where & 3) << 3; - data &= ~(0xff << shift); - data |= ((val & 0xff) << shift); - break; - case 2: - shift = (where & 2) << 3; - data &= ~(0xffff << shift); - data |= ((val & 0xffff) << shift); - break; - case 4: - data = val; - break; - default: - return PCIBIOS_FUNC_NOT_SUPPORTED; - } - - outl(data, PCI_REG(SH7751_PCIPDR)); - - return PCIBIOS_SUCCESSFUL; -} - -#undef CONFIG_CMD - -struct pci_ops sh7751_pci_ops = { - .read = sh7751_pci_read, - .write = sh7751_pci_write, -}; - -static int __init pci_check_direct(void) -{ - unsigned int tmp, id; - - /* check for SH7751/SH7751R hardware */ - id = inl(SH7751_PCIREG_BASE+SH7751_PCICONF0); - if (id != ((SH7751_DEVICE_ID << 16) | SH7751_VENDOR_ID) && - id != ((SH7751R_DEVICE_ID << 16) | SH7751_VENDOR_ID)) { - pr_debug("PCI: This is not an SH7751(R) (%x)\n", id); - return -ENODEV; - } - - /* - * Check if configuration works. - */ - if (pci_probe & PCI_PROBE_CONF1) { - tmp = inl (PCI_REG(SH7751_PCIPAR)); - outl (0x80000000, PCI_REG(SH7751_PCIPAR)); - if (inl (PCI_REG(SH7751_PCIPAR)) == 0x80000000) { - outl (tmp, PCI_REG(SH7751_PCIPAR)); - printk(KERN_INFO "PCI: Using configuration type 1\n"); - request_region(PCI_REG(SH7751_PCIPAR), 8, "PCI conf1"); - return 0; - } - outl (tmp, PCI_REG(SH7751_PCIPAR)); - } - - pr_debug("PCI: pci_check_direct failed\n"); - return -EINVAL; -} - -/***************************************************************************************/ - -/* - * Handle bus scanning and fixups .... - */ - -static void __init pci_fixup_ide_bases(struct pci_dev *d) -{ - int i; - - /* - * PCI IDE controllers use non-standard I/O port decoding, respect it. - */ - if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE) - return; - pr_debug("PCI: IDE base address fixup for %s\n", pci_name(d)); - for(i=0; i<4; i++) { - struct resource *r = &d->resource[i]; - if ((r->start & ~0x80) == 0x374) { - r->start |= 2; - r->end = r->start; - } - } -} - -DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases); - -/* - * Called after each bus is probed, but before its children - * are examined. - */ - -void __init pcibios_fixup_bus(struct pci_bus *b) -{ - pci_read_bridge_bases(b); -} /* * Initialization. Try all known PCI access methods. Note that we support @@ -196,25 +30,29 @@ * to access config space. * * Note that the platform specific initialization (BSC registers, and memory - * space mapping) will be called via the machine vectors (sh_mv.mv_pci_init()) if it - * exitst and via the platform defined function pcibios_init_platform(). - * See pci_bigsur.c for implementation; - * - * The BIOS version of the pci functions is not yet implemented but it is left - * in for completeness. Currently an error will be genereated at compile time. + * space mapping) will be called via the platform defined function + * pcibios_init_platform(). */ - static int __init sh7751_pci_init(void) { + unsigned int id; int ret; pr_debug("PCI: Starting intialization.\n"); - if ((ret = pci_check_direct()) != 0) + + /* check for SH7751/SH7751R hardware */ + id = pci_read_reg(SH7751_PCICONF0); + if (id != ((SH7751_DEVICE_ID << 16) | SH7751_VENDOR_ID) && + id != ((SH7751R_DEVICE_ID << 16) | SH7751_VENDOR_ID)) { + pr_debug("PCI: This is not an SH7751(R) (%x)\n", id); + return -ENODEV; + } + + if ((ret = sh4_pci_check_direct()) != 0) return ret; return pcibios_init_platform(); } - subsys_initcall(sh7751_pci_init); static int __init __area_sdram_check(unsigned int area) @@ -223,26 +61,26 @@ word = inl(SH7751_BCR1); /* check BCR for SDRAM in area */ - if(((word >> area) & 1) == 0) { + if (((word >> area) & 1) == 0) { printk("PCI: Area %d is not configured for SDRAM. BCR1=0x%x\n", area, word); return 0; } - outl(word, PCI_REG(SH7751_PCIBCR1)); + pci_write_reg(word, SH4_PCIBCR1); word = (u16)inw(SH7751_BCR2); /* check BCR2 for 32bit SDRAM interface*/ - if(((word >> (area << 1)) & 0x3) != 0x3) { + if (((word >> (area << 1)) & 0x3) != 0x3) { printk("PCI: Area %d is not 32 bit SDRAM. BCR2=0x%x\n", area, word); return 0; } - outl(word, PCI_REG(SH7751_PCIBCR2)); + pci_write_reg(word, SH4_PCIBCR2); return 1; } -int __init sh7751_pcic_init(struct sh7751_pci_address_map *map) +int __init sh7751_pcic_init(struct sh4_pci_address_map *map) { u32 reg; u32 word; @@ -251,39 +89,39 @@ reg = inl(SH7751_BCR1); reg |= 0x80000; outl(reg, SH7751_BCR1); - + /* Turn the clocks back on (not done in reset)*/ - outl(0, PCI_REG(SH7751_PCICLKR)); + pci_write_reg(0, SH4_PCICLKR); /* Clear Powerdown IRQ's (not done in reset) */ - word = SH7751_PCIPINT_D3 | SH7751_PCIPINT_D0; - outl(word, PCI_REG(SH7751_PCIPINT)); + word = SH4_PCIPINT_D3 | SH4_PCIPINT_D0; + pci_write_reg(word, SH4_PCIPINT); /* * This code is unused for some boards as it is done in the * bootloader and doing it here means the MAC addresses loaded * by the bootloader get lost. */ - if (!(map->flags & SH7751_PCIC_NO_RESET)) { + if (!(map->flags & SH4_PCIC_NO_RESET)) { /* toggle PCI reset pin */ - word = SH7751_PCICR_PREFIX | SH7751_PCICR_PRST; - outl(word,PCI_REG(SH7751_PCICR)); + word = SH4_PCICR_PREFIX | SH4_PCICR_PRST; + pci_write_reg(word, SH4_PCICR); /* Wait for a long time... not 1 sec. but long enough */ mdelay(100); - word = SH7751_PCICR_PREFIX; - outl(word,PCI_REG(SH7751_PCICR)); + word = SH4_PCICR_PREFIX; + pci_write_reg(word, SH4_PCICR); } - + /* set the command/status bits to: * Wait Cycle Control + Parity Enable + Bus Master + * Mem space enable */ word = SH7751_PCICONF1_WCC | SH7751_PCICONF1_PER | SH7751_PCICONF1_BUM | SH7751_PCICONF1_MES; - outl(word, PCI_REG(SH7751_PCICONF1)); + pci_write_reg(word, SH7751_PCICONF1); /* define this host as the host bridge */ - word = SH7751_PCI_HOST_BRIDGE << 24; - outl(word, PCI_REG(SH7751_PCICONF2)); + word = PCI_BASE_CLASS_BRIDGE << 24; + pci_write_reg(word, SH7751_PCICONF2); /* Set IO and Mem windows to local address * Make PCI and local address the same for easy 1 to 1 mapping @@ -291,46 +129,49 @@ * Window1 = map->window1.size @ cached area base = SDRAM */ word = map->window0.size - 1; - outl(word, PCI_REG(SH7751_PCILSR0)); + pci_write_reg(word, SH4_PCILSR0); word = map->window1.size - 1; - outl(word, PCI_REG(SH7751_PCILSR1)); + pci_write_reg(word, SH4_PCILSR1); /* Set the values on window 0 PCI config registers */ word = P2SEGADDR(map->window0.base); - outl(word, PCI_REG(SH7751_PCILAR0)); - outl(word, PCI_REG(SH7751_PCICONF5)); + pci_write_reg(word, SH4_PCILAR0); + pci_write_reg(word, SH7751_PCICONF5); /* Set the values on window 1 PCI config registers */ word = PHYSADDR(map->window1.base); - outl(word, PCI_REG(SH7751_PCILAR1)); - outl(word, PCI_REG(SH7751_PCICONF6)); + pci_write_reg(word, SH4_PCILAR1); + pci_write_reg(word, SH7751_PCICONF6); - /* Set the local 16MB PCI memory space window to + /* Set the local 16MB PCI memory space window to * the lowest PCI mapped address */ - word = PCIBIOS_MIN_MEM & SH7751_PCIMBR_MASK; - PCIDBG(2,"PCI: Setting upper bits of Memory window to 0x%x\n", word); - outl(word , PCI_REG(SH7751_PCIMBR)); + word = PCIBIOS_MIN_MEM & SH4_PCIMBR_MASK; + pr_debug("PCI: Setting upper bits of Memory window to 0x%x\n", word); + pci_write_reg(word , SH4_PCIMBR); /* Map IO space into PCI IO window * The IO window is 64K-PCIBIOS_MIN_IO in size - * IO addresses will be translated to the + * IO addresses will be translated to the * PCI IO window base address */ - PCIDBG(3,"PCI: Mapping IO address 0x%x - 0x%x to base 0x%x\n", PCIBIOS_MIN_IO, - (64*1024), SH7751_PCI_IO_BASE+PCIBIOS_MIN_IO); + pr_debug("PCI: Mapping IO address 0x%x - 0x%x to base 0x%x\n", + PCIBIOS_MIN_IO, (64 << 10), + SH4_PCI_IO_BASE + PCIBIOS_MIN_IO); - /* + /* * XXX: For now, leave this board-specific. In the event we have other * boards that need to do similar work, this can be wrapped. */ #ifdef CONFIG_SH_BIGSUR - bigsur_port_map(PCIBIOS_MIN_IO, (64*1024), SH7751_PCI_IO_BASE+PCIBIOS_MIN_IO,0); + bigsur_port_map(PCIBIOS_MIN_IO, (64 << 10), + SH4_PCI_IO_BASE + PCIBIOS_MIN_IO, 0); #endif - /* Make sure the MSB's of IO window are set to access PCI space correctly */ - word = PCIBIOS_MIN_IO & SH7751_PCIIOBR_MASK; - PCIDBG(2,"PCI: Setting upper bits of IO window to 0x%x\n", word); - outl(word, PCI_REG(SH7751_PCIIOBR)); - + /* Make sure the MSB's of IO window are set to access PCI space + * correctly */ + word = PCIBIOS_MIN_IO & SH4_PCIIOBR_MASK; + pr_debug("PCI: Setting upper bits of IO window to 0x%x\n", word); + pci_write_reg(word, SH4_PCIIOBR); + /* Set PCI WCRx, BCRx's, copy from BSC locations */ /* check BCR for SDRAM in specified area */ @@ -349,13 +190,13 @@ /* configure the wait control registers */ word = inl(SH7751_WCR1); - outl(word, PCI_REG(SH7751_PCIWCR1)); + pci_write_reg(word, SH4_PCIWCR1); word = inl(SH7751_WCR2); - outl(word, PCI_REG(SH7751_PCIWCR2)); + pci_write_reg(word, SH4_PCIWCR2); word = inl(SH7751_WCR3); - outl(word, PCI_REG(SH7751_PCIWCR3)); + pci_write_reg(word, SH4_PCIWCR3); word = inl(SH7751_MCR); - outl(word, PCI_REG(SH7751_PCIMCR)); + pci_write_reg(word, SH4_PCIMCR); /* NOTE: I'm ignoring the PCI error IRQs for now.. * TODO: add support for the internal error interrupts and @@ -368,49 +209,8 @@ /* SH7751 init done, set central function init complete */ /* use round robin mode to stop a device starving/overruning */ - word = SH7751_PCICR_PREFIX | SH7751_PCICR_CFIN | SH7751_PCICR_ARBM; - outl(word,PCI_REG(SH7751_PCICR)); + word = SH4_PCICR_PREFIX | SH4_PCICR_CFIN | SH4_PCICR_ARBM; + pci_write_reg(word, SH4_PCICR); return 1; } - -char * __init pcibios_setup(char *str) -{ - if (!strcmp(str, "off")) { - pci_probe = 0; - return NULL; - } - - return str; -} - -/* - * IRQ functions - */ -static u8 __init sh7751_no_swizzle(struct pci_dev *dev, u8 *pin) -{ - /* no swizzling */ - return PCI_SLOT(dev->devfn); -} - -static int sh7751_pci_lookup_irq(struct pci_dev *dev, u8 slot, u8 pin) -{ - int irq = -1; - - /* now lookup the actual IRQ on a platform specific basis (pci-'platform'.c) */ - irq = pcibios_map_platform_irq(slot,pin); - if( irq < 0 ) { - pr_debug("PCI: Error mapping IRQ on device %s\n", pci_name(dev)); - return irq; - } - - pr_debug("Setting IRQ for slot %s to %d\n", pci_name(dev), irq); - - return irq; -} - -void __init pcibios_fixup_irqs(void) -{ - pci_fixup_irqs(sh7751_no_swizzle, sh7751_pci_lookup_irq); -} -
diff --git a/arch/sh/drivers/pci/pci-sh7751.h b/arch/sh/drivers/pci/pci-sh7751.h index 1fee5ca..68e3cb5 100644 --- a/arch/sh/drivers/pci/pci-sh7751.h +++ b/arch/sh/drivers/pci/pci-sh7751.h
@@ -3,7 +3,7 @@ * * Dustin McIntire (dustin@sensoria.com) (c) 2001 * Paul Mundt (lethal@linux-sh.org) (c) 2003 - * + * * May be copied or modified under the terms of the GNU General Public * License. See linux/COPYING for more information. * @@ -12,28 +12,6 @@ #ifndef _PCI_SH7751_H_ #define _PCI_SH7751_H_ -#include <linux/pci.h> - -/* set debug level 4=verbose...1=terse */ -//#define DEBUG_PCI 3 -#undef DEBUG_PCI - -#ifdef DEBUG_PCI -#define PCIDBG(n, x...) { if(DEBUG_PCI>=n) printk(x); } -#else -#define PCIDBG(n, x...) -#endif - -/* startup values */ -#define PCI_PROBE_BIOS 1 -#define PCI_PROBE_CONF1 2 -#define PCI_PROBE_CONF2 4 -#define PCI_NO_SORT 0x100 -#define PCI_BIOS_SORT 0x200 -#define PCI_NO_CHECKS 0x400 -#define PCI_ASSIGN_ROMS 0x1000 -#define PCI_BIOS_IRQ_SCAN 0x2000 - /* Platform Specific Values */ #define SH7751_VENDOR_ID 0x1054 #define SH7751_DEVICE_ID 0x3505 @@ -128,131 +106,6 @@ #define SH7751_PCICONF17_PMEN 0x00010000 /* PME Enable */ #define SH7751_PCICONF17_PWST 0x00000003 /* Power State */ /* SH7715 Internal PCI Registers */ -#define SH7751_PCICR 0x100 /* PCI Control Register */ - #define SH7751_PCICR_PREFIX 0xA5000000 /* CR prefix for write */ - #define SH7751_PCICR_TRSB 0x00000200 /* Target Read Single */ - #define SH7751_PCICR_BSWP 0x00000100 /* Target Byte Swap */ - #define SH7751_PCICR_PLUP 0x00000080 /* Enable PCI Pullup */ - #define SH7751_PCICR_ARBM 0x00000040 /* PCI Arbitration Mode */ - #define SH7751_PCICR_MD 0x00000030 /* MD9 and MD10 status */ - #define SH7751_PCICR_SERR 0x00000008 /* SERR output assert */ - #define SH7751_PCICR_INTA 0x00000004 /* INTA output assert */ - #define SH7751_PCICR_PRST 0x00000002 /* PCI Reset Assert */ - #define SH7751_PCICR_CFIN 0x00000001 /* Central Fun. Init Done */ -#define SH7751_PCILSR0 0x104 /* PCI Local Space Register0 */ -#define SH7751_PCILSR1 0x108 /* PCI Local Space Register1 */ -#define SH7751_PCILAR0 0x10C /* PCI Local Address Register1 */ -#define SH7751_PCILAR1 0x110 /* PCI Local Address Register1 */ -#define SH7751_PCIINT 0x114 /* PCI Interrupt Register */ - #define SH7751_PCIINT_MLCK 0x00008000 /* Master Lock Error */ - #define SH7751_PCIINT_TABT 0x00004000 /* Target Abort Error */ - #define SH7751_PCIINT_TRET 0x00000200 /* Target Retry Error */ - #define SH7751_PCIINT_MFDE 0x00000100 /* Master Func. Disable Error */ - #define SH7751_PCIINT_PRTY 0x00000080 /* Address Parity Error */ - #define SH7751_PCIINT_SERR 0x00000040 /* SERR Detection Error */ - #define SH7751_PCIINT_TWDP 0x00000020 /* Tgt. Write Parity Error */ - #define SH7751_PCIINT_TRDP 0x00000010 /* Tgt. Read Parity Error Det. */ - #define SH7751_PCIINT_MTABT 0x00000008 /* Master-Tgt. Abort Error */ - #define SH7751_PCIINT_MMABT 0x00000004 /* Master-Master Abort Error */ - #define SH7751_PCIINT_MWPD 0x00000002 /* Master Write PERR Detect */ - #define SH7751_PCIINT_MRPD 0x00000002 /* Master Read PERR Detect */ -#define SH7751_PCIINTM 0x118 /* PCI Interrupt Mask Register */ -#define SH7751_PCIALR 0x11C /* Error Address Register */ -#define SH7751_PCICLR 0x120 /* Error Command/Data Register */ - #define SH7751_PCICLR_MPIO 0x80000000 /* Error Command/Data Register */ - #define SH7751_PCICLR_MDMA0 0x40000000 /* DMA0 Transfer Error */ - #define SH7751_PCICLR_MDMA1 0x20000000 /* DMA1 Transfer Error */ - #define SH7751_PCICLR_MDMA2 0x10000000 /* DMA2 Transfer Error */ - #define SH7751_PCICLR_MDMA3 0x08000000 /* DMA3 Transfer Error */ - #define SH7751_PCICLR_TGT 0x04000000 /* Target Transfer Error */ - #define SH7751_PCICLR_CMDL 0x0000000F /* PCI Command at Error */ -#define SH7751_PCIAINT 0x130 /* Arbiter Interrupt Register */ - #define SH7751_PCIAINT_MBKN 0x00002000 /* Master Broken Interrupt */ - #define SH7751_PCIAINT_TBTO 0x00001000 /* Target Bus Time Out */ - #define SH7751_PCIAINT_MBTO 0x00001000 /* Master Bus Time Out */ - #define SH7751_PCIAINT_TABT 0x00000008 /* Target Abort */ - #define SH7751_PCIAINT_MABT 0x00000004 /* Master Abort */ - #define SH7751_PCIAINT_RDPE 0x00000002 /* Read Data Parity Error */ - #define SH7751_PCIAINT_WDPE 0x00000002 /* Write Data Parity Error */ -#define SH7751_PCIAINTM 0x134 /* Arbiter Int. Mask Register */ -#define SH7751_PCIBMLR 0x138 /* Error Bus Master Register */ - #define SH7751_PCIBMLR_REQ4 0x00000010 /* REQ4 bus master at error */ - #define SH7751_PCIBMLR_REQ3 0x00000008 /* REQ3 bus master at error */ - #define SH7751_PCIBMLR_REQ2 0x00000004 /* REQ2 bus master at error */ - #define SH7751_PCIBMLR_REQ1 0x00000002 /* REQ1 bus master at error */ - #define SH7751_PCIBMLR_REQ0 0x00000001 /* REQ0 bus master at error */ -#define SH7751_PCIDMABT 0x140 /* DMA Transfer Arb. Register */ - #define SH7751_PCIDMABT_RRBN 0x00000001 /* DMA Arbitor Round-Robin */ -#define SH7751_PCIDPA0 0x180 /* DMA0 Transfer Addr. Register */ -#define SH7751_PCIDLA0 0x184 /* DMA0 Local Addr. Register */ -#define SH7751_PCIDTC0 0x188 /* DMA0 Transfer Cnt. Register */ -#define SH7751_PCIDCR0 0x18C /* DMA0 Control Register */ - #define SH7751_PCIDCR_ALGN 0x00000600 /* DMA Alignment Mode */ - #define SH7751_PCIDCR_MAST 0x00000100 /* DMA Termination Type */ - #define SH7751_PCIDCR_INTM 0x00000080 /* DMA Interrupt Done Mask*/ - #define SH7751_PCIDCR_INTS 0x00000040 /* DMA Interrupt Done Status */ - #define SH7751_PCIDCR_LHLD 0x00000020 /* Local Address Control */ - #define SH7751_PCIDCR_PHLD 0x00000010 /* PCI Address Control*/ - #define SH7751_PCIDCR_IOSEL 0x00000008 /* PCI Address Space Type */ - #define SH7751_PCIDCR_DIR 0x00000004 /* DMA Transfer Direction */ - #define SH7751_PCIDCR_STOP 0x00000002 /* Force DMA Stop */ - #define SH7751_PCIDCR_STRT 0x00000001 /* DMA Start */ -#define SH7751_PCIDPA1 0x190 /* DMA1 Transfer Addr. Register */ -#define SH7751_PCIDLA1 0x194 /* DMA1 Local Addr. Register */ -#define SH7751_PCIDTC1 0x198 /* DMA1 Transfer Cnt. Register */ -#define SH7751_PCIDCR1 0x19C /* DMA1 Control Register */ -#define SH7751_PCIDPA2 0x1A0 /* DMA2 Transfer Addr. Register */ -#define SH7751_PCIDLA2 0x1A4 /* DMA2 Local Addr. Register */ -#define SH7751_PCIDTC2 0x1A8 /* DMA2 Transfer Cnt. Register */ -#define SH7751_PCIDCR2 0x1AC /* DMA2 Control Register */ -#define SH7751_PCIDPA3 0x1B0 /* DMA3 Transfer Addr. Register */ -#define SH7751_PCIDLA3 0x1B4 /* DMA3 Local Addr. Register */ -#define SH7751_PCIDTC3 0x1B8 /* DMA3 Transfer Cnt. Register */ -#define SH7751_PCIDCR3 0x1BC /* DMA3 Control Register */ -#define SH7751_PCIPAR 0x1C0 /* PIO Address Register */ - #define SH7751_PCIPAR_CFGEN 0x80000000 /* Configuration Enable */ - #define SH7751_PCIPAR_BUSNO 0x00FF0000 /* Config. Bus Number */ - #define SH7751_PCIPAR_DEVNO 0x0000FF00 /* Config. Device Number */ - #define SH7751_PCIPAR_REGAD 0x000000FC /* Register Address Number */ -#define SH7751_PCIMBR 0x1C4 /* Memory Base Address Register */ - #define SH7751_PCIMBR_MASK 0xFF000000 /* Memory Space Mask */ - #define SH7751_PCIMBR_LOCK 0x00000001 /* Lock Memory Space */ -#define SH7751_PCIIOBR 0x1C8 /* I/O Base Address Register */ - #define SH7751_PCIIOBR_MASK 0xFFFC0000 /* IO Space Mask */ - #define SH7751_PCIIOBR_LOCK 0x00000001 /* Lock IO Space */ -#define SH7751_PCIPINT 0x1CC /* Power Mgmnt Int. Register */ - #define SH7751_PCIPINT_D3 0x00000002 /* D3 Pwr Mgmt. Interrupt */ - #define SH7751_PCIPINT_D0 0x00000001 /* D0 Pwr Mgmt. Interrupt */ -#define SH7751_PCIPINTM 0x1D0 /* Power Mgmnt Mask Register */ -#define SH7751_PCICLKR 0x1D4 /* Clock Ctrl. Register */ - #define SH7751_PCICLKR_PCSTP 0x00000002 /* PCI Clock Stop */ - #define SH7751_PCICLKR_BCSTP 0x00000002 /* BCLK Clock Stop */ -/* For definitions of BCR, MCR see ... */ -#define SH7751_PCIBCR1 0x1E0 /* Memory BCR1 Register */ -#define SH7751_PCIBCR2 0x1E4 /* Memory BCR2 Register */ -#define SH7751_PCIWCR1 0x1E8 /* Wait Control 1 Register */ -#define SH7751_PCIWCR2 0x1EC /* Wait Control 2 Register */ -#define SH7751_PCIWCR3 0x1F0 /* Wait Control 3 Register */ -#define SH7751_PCIMCR 0x1F4 /* Memory Control Register */ -#define SH7751_PCIBCR3 0x1f8 /* Memory BCR3 Register */ -#define SH7751_PCIPCTR 0x200 /* Port Control Register */ - #define SH7751_PCIPCTR_P2EN 0x000400000 /* Port 2 Enable */ - #define SH7751_PCIPCTR_P1EN 0x000200000 /* Port 1 Enable */ - #define SH7751_PCIPCTR_P0EN 0x000100000 /* Port 0 Enable */ - #define SH7751_PCIPCTR_P2UP 0x000000020 /* Port2 Pull Up Enable */ - #define SH7751_PCIPCTR_P2IO 0x000000010 /* Port2 Output Enable */ - #define SH7751_PCIPCTR_P1UP 0x000000008 /* Port1 Pull Up Enable */ - #define SH7751_PCIPCTR_P1IO 0x000000004 /* Port1 Output Enable */ - #define SH7751_PCIPCTR_P0UP 0x000000002 /* Port0 Pull Up Enable */ - #define SH7751_PCIPCTR_P0IO 0x000000001 /* Port0 Output Enable */ -#define SH7751_PCIPDTR 0x204 /* Port Data Register */ - #define SH7751_PCIPDTR_PB5 0x000000020 /* Port 5 Enable */ - #define SH7751_PCIPDTR_PB4 0x000000010 /* Port 4 Enable */ - #define SH7751_PCIPDTR_PB3 0x000000008 /* Port 3 Enable */ - #define SH7751_PCIPDTR_PB2 0x000000004 /* Port 2 Enable */ - #define SH7751_PCIPDTR_PB1 0x000000002 /* Port 1 Enable */ - #define SH7751_PCIPDTR_PB0 0x000000001 /* Port 0 Enable */ -#define SH7751_PCIPDR 0x220 /* Port IO Data Register */ /* Memory Control Registers */ #define SH7751_BCR1 0xFF800000 /* Memory BCR1 Register */ @@ -274,30 +127,9 @@ #define SH7751_CS5_BASE_ADDR (SH7751_CS4_BASE_ADDR + SH7751_MEM_REGION_SIZE) #define SH7751_CS6_BASE_ADDR (SH7751_CS5_BASE_ADDR + SH7751_MEM_REGION_SIZE) -/* General PCI values */ -#define SH7751_PCI_HOST_BRIDGE 0x6 - -/* Flags */ -#define SH7751_PCIC_NO_RESET 0x0001 - -/* External functions defined per platform i.e. Big Sur, SE... (these could be routed - * through the machine vectors... */ -extern int pcibios_init_platform(void); -extern int pcibios_map_platform_irq(u8 slot, u8 pin); - -struct sh7751_pci_address_space { - unsigned long base; - unsigned long size; -}; - -struct sh7751_pci_address_map { - struct sh7751_pci_address_space window0; - struct sh7751_pci_address_space window1; - unsigned long flags; -}; +struct sh4_pci_address_map; /* arch/sh/drivers/pci/pci-sh7751.c */ -extern int sh7751_pcic_init(struct sh7751_pci_address_map *map); +int sh7751_pcic_init(struct sh4_pci_address_map *map); #endif /* _PCI_SH7751_H_ */ -
diff --git a/arch/sh/drivers/pci/pci-sh7780.c b/arch/sh/drivers/pci/pci-sh7780.c new file mode 100644 index 0000000..bd3064a --- /dev/null +++ b/arch/sh/drivers/pci/pci-sh7780.c
@@ -0,0 +1,139 @@ +/* + * Low-Level PCI Support for the SH7780 + * + * Dustin McIntire (dustin@sensoria.com) + * Derived from arch/i386/kernel/pci-*.c which bore the message: + * (c) 1999--2000 Martin Mares <mj@ucw.cz> + * + * Ported to the new API by Paul Mundt <lethal@linux-sh.org> + * With cleanup by Paul van Gool <pvangool@mimotech.com> + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + * + */ + +#undef DEBUG + +#include <linux/config.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include "pci-sh4.h" + +/* + * Initialization. Try all known PCI access methods. Note that we support + * using both PCI BIOS and direct access: in such cases, we use I/O ports + * to access config space. + * + * Note that the platform specific initialization (BSC registers, and memory + * space mapping) will be called via the platform defined function + * pcibios_init_platform(). + */ +static int __init sh7780_pci_init(void) +{ + unsigned int id; + int ret; + + pr_debug("PCI: Starting intialization.\n"); + + outl(0x00000001, SH7780_PCI_VCR2); /* Enable PCIC */ + + /* check for SH7780/SH7780R hardware */ + id = pci_read_reg(SH7780_PCIVID); + if ((id != ((SH7780_DEVICE_ID << 16) | SH7780_VENDOR_ID)) && + (id != ((SH7781_DEVICE_ID << 16) | SH7780_VENDOR_ID))) { + printk(KERN_ERR "PCI: This is not an SH7780 (%x)\n", id); + return -ENODEV; + } + + /* Setup the INTC */ + ctrl_outl(0x00200000, INTC_ICR0); /* INTC SH-4 Mode */ + ctrl_outl(0x00078000, INTC_INT2MSKCR); /* enable PCIINTA - PCIINTD */ + ctrl_outl(0x40000000, INTC_INTMSK1); /* disable IRL4-7 Interrupt */ + ctrl_outl(0x0000fffe, INTC_INTMSK2); /* disable IRL4-7 Interrupt */ + ctrl_outl(0x80000000, INTC_INTMSKCLR1); /* enable IRL0-3 Interrupt */ + ctrl_outl(0xfffe0000, INTC_INTMSKCLR2); /* enable IRL0-3 Interrupt */ + + if ((ret = sh4_pci_check_direct()) != 0) + return ret; + + return pcibios_init_platform(); +} +core_initcall(sh7780_pci_init); + +int __init sh7780_pcic_init(struct sh4_pci_address_map *map) +{ + u32 word; + + /* + * This code is unused for some boards as it is done in the + * bootloader and doing it here means the MAC addresses loaded + * by the bootloader get lost. + */ + if (!(map->flags & SH4_PCIC_NO_RESET)) { + /* toggle PCI reset pin */ + word = SH4_PCICR_PREFIX | SH4_PCICR_PRST; + pci_write_reg(word, SH4_PCICR); + /* Wait for a long time... not 1 sec. but long enough */ + mdelay(100); + word = SH4_PCICR_PREFIX; + pci_write_reg(word, SH4_PCICR); + } + + /* set the command/status bits to: + * Wait Cycle Control + Parity Enable + Bus Master + + * Mem space enable + */ + pci_write_reg(0x00000046, SH7780_PCICMD); + + /* define this host as the host bridge */ + word = PCI_BASE_CLASS_BRIDGE << 24; + pci_write_reg(word, SH7780_PCIRID); + + /* Set IO and Mem windows to local address + * Make PCI and local address the same for easy 1 to 1 mapping + * Window0 = map->window0.size @ non-cached area base = SDRAM + * Window1 = map->window1.size @ cached area base = SDRAM + */ + word = ((map->window0.size - 1) & 0x1ff00001) | 0x01; + pci_write_reg(0x07f00001, SH4_PCILSR0); + word = ((map->window1.size - 1) & 0x1ff00001) | 0x01; + pci_write_reg(0x00000001, SH4_PCILSR1); + /* Set the values on window 0 PCI config registers */ + word = P2SEGADDR(map->window0.base); + pci_write_reg(0xa8000000, SH4_PCILAR0); + pci_write_reg(0x08000000, SH7780_PCIMBAR0); + /* Set the values on window 1 PCI config registers */ + word = P2SEGADDR(map->window1.base); + pci_write_reg(0x00000000, SH4_PCILAR1); + pci_write_reg(0x00000000, SH7780_PCIMBAR1); + + /* Map IO space into PCI IO window + * The IO window is 64K-PCIBIOS_MIN_IO in size + * IO addresses will be translated to the + * PCI IO window base address + */ + pr_debug("PCI: Mapping IO address 0x%x - 0x%x to base 0x%x\n", + PCIBIOS_MIN_IO, (64 << 10), + SH7780_PCI_IO_BASE + PCIBIOS_MIN_IO); + + /* NOTE: I'm ignoring the PCI error IRQs for now.. + * TODO: add support for the internal error interrupts and + * DMA interrupts... + */ + +#ifdef CONFIG_SH_R7780RP + pci_fixup_pcic(); +#endif + + /* SH7780 init done, set central function init complete */ + /* use round robin mode to stop a device starving/overruning */ + word = SH4_PCICR_PREFIX | SH4_PCICR_CFIN | SH4_PCICR_FTO; + pci_write_reg(word, SH4_PCICR); + + return 1; +}
diff --git a/arch/sh/drivers/pci/pci-sh7780.h b/arch/sh/drivers/pci/pci-sh7780.h new file mode 100644 index 0000000..f02d218 --- /dev/null +++ b/arch/sh/drivers/pci/pci-sh7780.h
@@ -0,0 +1,94 @@ +/* + * Low-Level PCI Support for SH7780 targets + * + * Dustin McIntire (dustin@sensoria.com) (c) 2001 + * Paul Mundt (lethal@linux-sh.org) (c) 2003 + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + * + */ + +#ifndef _PCI_SH7780_H_ +#define _PCI_SH7780_H_ + +/* Platform Specific Values */ +#define SH7780_VENDOR_ID 0x1912 +#define SH7780_DEVICE_ID 0x0002 +#define SH7781_DEVICE_ID 0x0001 + +/* SH7780 Control Registers */ +#define SH7780_PCI_VCR0 0xFE000000 +#define SH7780_PCI_VCR1 0xFE000004 +#define SH7780_PCI_VCR2 0xFE000008 + +/* SH7780 Specific Values */ +#define SH7780_PCI_CONFIG_BASE 0xFD000000 /* Config space base addr */ +#define SH7780_PCI_CONFIG_SIZE 0x01000000 /* Config space size */ + +#define SH7780_PCI_MEMORY_BASE 0xFD000000 /* Memory space base addr */ +#define SH7780_PCI_MEM_SIZE 0x01000000 /* Size of Memory window */ + +#define SH7780_PCI_IO_BASE 0xFE400000 /* IO space base address */ +#define SH7780_PCI_IO_SIZE 0x00400000 /* Size of IO window */ + +#define SH7780_PCIREG_BASE 0xFE040000 /* PCI regs base address */ +#define PCI_REG(n) (SH7780_PCIREG_BASE+n) + +/* SH7780 PCI Config Registers */ +#define SH7780_PCIVID 0x000 /* Vendor ID */ +#define SH7780_PCIDID 0x002 /* Device ID */ +#define SH7780_PCICMD 0x004 /* Command */ +#define SH7780_PCISTATUS 0x006 /* Status */ +#define SH7780_PCIRID 0x008 /* Revision ID */ +#define SH7780_PCIPIF 0x009 /* Program Interface */ +#define SH7780_PCISUB 0x00a /* Sub class code */ +#define SH7780_PCIBCC 0x00b /* Base class code */ +#define SH7780_PCICLS 0x00c /* Cache line size */ +#define SH7780_PCILTM 0x00d /* latency timer */ +#define SH7780_PCIHDR 0x00e /* Header type */ +#define SH7780_PCIBIST 0x00f /* BIST */ +#define SH7780_PCIIBAR 0x010 /* IO Base address */ +#define SH7780_PCIMBAR0 0x014 /* Memory base address0 */ +#define SH7780_PCIMBAR1 0x018 /* Memory base address1 */ +#define SH7780_PCISVID 0x02c /* Sub system vendor ID */ +#define SH7780_PCISID 0x02e /* Sub system ID */ +#define SH7780_PCICP 0x034 +#define SH7780_PCIINTLINE 0x03c /* Interrupt line */ +#define SH7780_PCIINTPIN 0x03d /* Interrupt pin */ +#define SH7780_PCIMINGNT 0x03e /* Minumum grand */ +#define SH7780_PCIMAXLAT 0x03f /* Maxmum latency */ +#define SH7780_PCICID 0x040 +#define SH7780_PCINIP 0x041 +#define SH7780_PCIPMC 0x042 +#define SH7780_PCIPMCSR 0x044 +#define SH7780_PCIPMCSR_BSE 0x046 +#define SH7780_PCICDD 0x047 + +#define SH7780_PCIMBR0 0x1E0 +#define SH7780_PCIMBMR0 0x1E4 +#define SH7780_PCIMBR2 0x1F0 +#define SH7780_PCIMBMR2 0x1F4 +#define SH7780_PCIIOBR 0x1F8 +#define SH7780_PCIIOBMR 0x1FC +#define SH7780_PCICSCR0 0x210 /* Cache Snoop1 Cnt. Register */ +#define SH7780_PCICSCR1 0x214 /* Cache Snoop2 Cnt. Register */ +#define SH7780_PCICSAR0 0x218 /* Cache Snoop1 Addr. Register */ +#define SH7780_PCICSAR1 0x21C /* Cache Snoop2 Addr. Register */ + +/* General Memory Config Addresses */ +#define SH7780_CS0_BASE_ADDR 0x0 +#define SH7780_MEM_REGION_SIZE 0x04000000 +#define SH7780_CS1_BASE_ADDR (SH7780_CS0_BASE_ADDR + SH7780_MEM_REGION_SIZE) +#define SH7780_CS2_BASE_ADDR (SH7780_CS1_BASE_ADDR + SH7780_MEM_REGION_SIZE) +#define SH7780_CS3_BASE_ADDR (SH7780_CS2_BASE_ADDR + SH7780_MEM_REGION_SIZE) +#define SH7780_CS4_BASE_ADDR (SH7780_CS3_BASE_ADDR + SH7780_MEM_REGION_SIZE) +#define SH7780_CS5_BASE_ADDR (SH7780_CS4_BASE_ADDR + SH7780_MEM_REGION_SIZE) +#define SH7780_CS6_BASE_ADDR (SH7780_CS5_BASE_ADDR + SH7780_MEM_REGION_SIZE) + +struct sh4_pci_address_map; + +/* arch/sh/drivers/pci/pci-sh7780.c */ +int sh7780_pcic_init(struct sh4_pci_address_map *map); + +#endif /* _PCI_SH7780_H_ */
diff --git a/arch/sh/drivers/pci/pci-st40.c b/arch/sh/drivers/pci/pci-st40.c index 7c81b8b..4ab5ea6 100644 --- a/arch/sh/drivers/pci/pci-st40.c +++ b/arch/sh/drivers/pci/pci-st40.c
@@ -70,12 +70,6 @@ static void pci_set_rbar_region(unsigned int region, unsigned long localAddr, unsigned long pciOffset, unsigned long regionSize); -/* - * The pcibios_map_platform_irq function is defined in the appropriate - * board specific code and referenced here - */ -extern int __init pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin); - static __init void SetPCIPLL(void) { { @@ -422,13 +416,6 @@ /* Everything hangs off this */ static struct pci_bus *pci_root_bus; - -static u8 __init no_swizzle(struct pci_dev *dev, u8 * pin) -{ - return PCI_SLOT(dev->devfn); -} - - static int __init pcibios_init(void) { extern unsigned long memory_start, memory_end; @@ -465,17 +452,11 @@ /* ok, do the scan man */ pci_root_bus = pci_scan_bus(0, &st40pci_config_ops, NULL); pci_assign_unassigned_resources(); - pci_fixup_irqs(no_swizzle, pcibios_map_platform_irq); return 0; } - subsys_initcall(pcibios_init); -void __init pcibios_fixup_bus(struct pci_bus *bus) -{ -} - /* * Publish a region of local address space over the PCI bus * to other devices.
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 3d546ba..d439336 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c
@@ -1,21 +1,45 @@ -/* arch/sh/kernel/pci.c - * $Id: pci.c,v 1.1 2003/08/24 19:15:45 lethal Exp $ +/* + * arch/sh/drivers/pci/pci.c * * Copyright (c) 2002 M. R. Brown <mrbrown@linux-sh.org> - * - * + * Copyright (c) 2004 - 2006 Paul Mundt <lethal@linux-sh.org> + * * These functions are collected here to reduce duplication of common * code amongst the many platform-specific PCI support code files. - * + * * These routines require the following board-specific routines: * void pcibios_fixup_irqs(); * * See include/asm-sh/pci.h for more information. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. */ - #include <linux/kernel.h> #include <linux/pci.h> #include <linux/init.h> +#include <asm/io.h> + +static inline u8 bridge_swizzle(u8 pin, u8 slot) +{ + return (((pin - 1) + slot) % 4) + 1; +} + +static u8 __init simple_swizzle(struct pci_dev *dev, u8 *pinp) +{ + u8 pin = *pinp; + + while (dev->bus->parent) { + pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)); + /* Move up the chain of bridges. */ + dev = dev->bus->self; + } + *pinp = pin; + + /* The slot is the slot of the last bridge. */ + return PCI_SLOT(dev->devfn); +} static int __init pcibios_init(void) { @@ -26,26 +50,32 @@ #ifdef CONFIG_PCI_AUTO /* assign resources */ busno = 0; - for (p = board_pci_channels; p->pci_ops != NULL; p++) { + for (p = board_pci_channels; p->pci_ops != NULL; p++) busno = pciauto_assign_resources(busno, p) + 1; - } #endif /* scan the buses */ busno = 0; - for (p= board_pci_channels; p->pci_ops != NULL; p++) { + for (p = board_pci_channels; p->pci_ops != NULL; p++) { bus = pci_scan_bus(busno, p->pci_ops, p); - busno = bus->subordinate+1; + busno = bus->subordinate + 1; } - /* board-specific fixups */ - pcibios_fixup_irqs(); + pci_fixup_irqs(simple_swizzle, pcibios_map_platform_irq); return 0; } - subsys_initcall(pcibios_init); +/* + * Called after each bus is probed, but before its children + * are examined. + */ +void __init pcibios_fixup_bus(struct pci_bus *bus) +{ + pci_read_bridge_bases(bus); +} + void pcibios_update_resource(struct pci_dev *dev, struct resource *root, struct resource *res, int resource) @@ -61,13 +91,17 @@ new |= PCI_ROM_ADDRESS_ENABLE; reg = dev->rom_base_reg; } else { - /* Somebody might have asked allocation of a non-standard resource */ + /* + * Somebody might have asked allocation of a non-standard + * resource + */ return; } - + pci_write_config_dword(dev, reg, new); pci_read_config_dword(dev, reg, &check); - if ((new ^ check) & ((new & PCI_BASE_ADDRESS_SPACE_IO) ? PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)) { + if ((new ^ check) & ((new & PCI_BASE_ADDRESS_SPACE_IO) ? + PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)) { printk(KERN_ERR "PCI: Error while updating region " "%s/%d (%08x != %08x)\n", pci_name(dev), resource, new, check); @@ -145,7 +179,8 @@ lat = pcibios_max_latency; else return; - printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n", pci_name(dev), lat); + printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n", + pci_name(dev), lat); pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); } @@ -153,3 +188,39 @@ { pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq); } + +void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) +{ + unsigned long start = pci_resource_start(dev, bar); + unsigned long len = pci_resource_len(dev, bar); + unsigned long flags = pci_resource_flags(dev, bar); + + if (unlikely(!len || !start)) + return NULL; + if (maxlen && len > maxlen) + len = maxlen; + + /* + * Presently the IORESOURCE_MEM case is a bit special, most + * SH7751 style PCI controllers have PCI memory at a fixed + * location in the address space where no remapping is desired + * (typically at 0xfd000000, but is_pci_memaddr() will know + * best). With the IORESOURCE_MEM case more care has to be taken + * to inhibit page table mapping for legacy cores, but this is + * punted off to __ioremap(). + * -- PFM. + */ + if (flags & IORESOURCE_IO) + return ioport_map(start, len); + if (flags & IORESOURCE_MEM) + return ioremap(start, len); + + return NULL; +} +EXPORT_SYMBOL(pci_iomap); + +void pci_iounmap(struct pci_dev *dev, void __iomem *addr) +{ + iounmap(addr); +} +EXPORT_SYMBOL(pci_iounmap);
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile index f05cd96..5da88a4 100644 --- a/arch/sh/kernel/Makefile +++ b/arch/sh/kernel/Makefile
@@ -6,9 +6,10 @@ obj-y := process.o signal.o entry.o traps.o irq.o \ ptrace.o setup.o time.o sys_sh.o semaphore.o \ - io.o io_generic.o sh_ksyms.o + io.o io_generic.o sh_ksyms.o syscalls.o obj-y += cpu/ timers/ +obj-$(CONFIG_VSYSCALL) += vsyscall/ obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_CF_ENABLER) += cf-enabler.o @@ -18,3 +19,5 @@ obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o +obj-$(CONFIG_APM) += apm.o +obj-$(CONFIG_PM) += pm.o
diff --git a/arch/sh/kernel/apm.c b/arch/sh/kernel/apm.c new file mode 100644 index 0000000..871e7d6 --- /dev/null +++ b/arch/sh/kernel/apm.c
@@ -0,0 +1,539 @@ +/* + * bios-less APM driver for hp680 + * + * Copyright 2005 (c) Andriy Skulysh <askulysh@gmail.com> + * + * based on ARM APM driver by + * Jamey Hicks <jamey@crl.dec.com> + * + * adapted from the APM BIOS driver for Linux by + * Stephen Rothwell (sfr@linuxcare.com) + * + * APM 1.2 Reference: + * Intel Corporation, Microsoft Corporation. Advanced Power Management + * (APM) BIOS Interface Specification, Revision 1.2, February 1996. + * + * [This document is available from Microsoft at: + * http://www.microsoft.com/hwdev/busbios/amp_12.htm] + */ +#include <linux/config.h> +#include <linux/module.h> +#include <linux/poll.h> +#include <linux/timer.h> +#include <linux/slab.h> +#include <linux/proc_fs.h> +#include <linux/miscdevice.h> +#include <linux/apm_bios.h> +#include <linux/pm.h> +#include <linux/pm_legacy.h> +#include <asm/apm.h> + +#define MODNAME "apm" + +/* + * The apm_bios device is one of the misc char devices. + * This is its minor number. + */ +#define APM_MINOR_DEV 134 + +/* + * Maximum number of events stored + */ +#define APM_MAX_EVENTS 16 + +struct apm_queue { + unsigned int event_head; + unsigned int event_tail; + apm_event_t events[APM_MAX_EVENTS]; +}; + +/* + * The per-file APM data + */ +struct apm_user { + struct list_head list; + + unsigned int suser: 1; + unsigned int writer: 1; + unsigned int reader: 1; + + int suspend_result; + unsigned int suspend_state; +#define SUSPEND_NONE 0 /* no suspend pending */ +#define SUSPEND_PENDING 1 /* suspend pending read */ +#define SUSPEND_READ 2 /* suspend read, pending ack */ +#define SUSPEND_ACKED 3 /* suspend acked */ +#define SUSPEND_DONE 4 /* suspend completed */ + + struct apm_queue queue; +}; + +/* + * Local variables + */ +static int suspends_pending; + +static DECLARE_WAIT_QUEUE_HEAD(apm_waitqueue); +static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue); + +/* + * This is a list of everyone who has opened /dev/apm_bios + */ +static DECLARE_RWSEM(user_list_lock); +static LIST_HEAD(apm_user_list); + +/* + * kapmd info. kapmd provides us a process context to handle + * "APM" events within - specifically necessary if we're going + * to be suspending the system. + */ +static DECLARE_WAIT_QUEUE_HEAD(kapmd_wait); +static DECLARE_COMPLETION(kapmd_exit); +static DEFINE_SPINLOCK(kapmd_queue_lock); +static struct apm_queue kapmd_queue; + +int apm_suspended; +EXPORT_SYMBOL(apm_suspended); + +/* Platform-specific apm_read_proc(). */ +int (*apm_get_info)(char *buf, char **start, off_t fpos, int length); +EXPORT_SYMBOL(apm_get_info); + +/* + * APM event queue management. + */ +static inline int queue_empty(struct apm_queue *q) +{ + return q->event_head == q->event_tail; +} + +static inline apm_event_t queue_get_event(struct apm_queue *q) +{ + q->event_tail = (q->event_tail + 1) % APM_MAX_EVENTS; + return q->events[q->event_tail]; +} + +static void queue_add_event(struct apm_queue *q, apm_event_t event) +{ + q->event_head = (q->event_head + 1) % APM_MAX_EVENTS; + if (q->event_head == q->event_tail) { + static int notified; + + if (notified++ == 0) + printk(KERN_ERR "apm: an event queue overflowed\n"); + + q->event_tail = (q->event_tail + 1) % APM_MAX_EVENTS; + } + q->events[q->event_head] = event; +} + +static void queue_event_one_user(struct apm_user *as, apm_event_t event) +{ + if (as->suser && as->writer) { + switch (event) { + case APM_SYS_SUSPEND: + case APM_USER_SUSPEND: + /* + * If this user already has a suspend pending, + * don't queue another one. + */ + if (as->suspend_state != SUSPEND_NONE) + return; + + as->suspend_state = SUSPEND_PENDING; + suspends_pending++; + break; + } + } + queue_add_event(&as->queue, event); +} + +static void queue_event(apm_event_t event, struct apm_user *sender) +{ + struct apm_user *as; + + down_read(&user_list_lock); + + list_for_each_entry(as, &apm_user_list, list) + if (as != sender && as->reader) + queue_event_one_user(as, event); + + up_read(&user_list_lock); + wake_up_interruptible(&apm_waitqueue); +} + +/** + * apm_queue_event - queue an APM event for kapmd + * @event: APM event + * + * Queue an APM event for kapmd to process and ultimately take the + * appropriate action. Only a subset of events are handled: + * %APM_LOW_BATTERY + * %APM_POWER_STATUS_CHANGE + * %APM_USER_SUSPEND + * %APM_SYS_SUSPEND + * %APM_CRITICAL_SUSPEND + */ +void apm_queue_event(apm_event_t event) +{ + spin_lock_irq(&kapmd_queue_lock); + queue_add_event(&kapmd_queue, event); + spin_unlock_irq(&kapmd_queue_lock); + + wake_up_interruptible(&kapmd_wait); +} +EXPORT_SYMBOL(apm_queue_event); + +static void apm_suspend(void) +{ + struct apm_user *as; + int err; + + apm_suspended = 1; + err = pm_suspend(PM_SUSPEND_MEM); + + /* + * Anyone on the APM queues will think we're still suspended. + * Send a message so everyone knows we're now awake again. + */ + queue_event(APM_NORMAL_RESUME, NULL); + + /* + * Finally, wake up anyone who is sleeping on the suspend. + */ + down_read(&user_list_lock); + list_for_each_entry(as, &apm_user_list, list) { + as->suspend_result = err; + as->suspend_state = SUSPEND_DONE; + } + up_read(&user_list_lock); + + wake_up(&apm_suspend_waitqueue); + apm_suspended = 0; +} + +static ssize_t apm_read(struct file *fp, char __user *buf, + size_t count, loff_t *ppos) +{ + struct apm_user *as = fp->private_data; + apm_event_t event; + int i = count, ret = 0; + + if (count < sizeof(apm_event_t)) + return -EINVAL; + + if (queue_empty(&as->queue) && fp->f_flags & O_NONBLOCK) + return -EAGAIN; + + wait_event_interruptible(apm_waitqueue, !queue_empty(&as->queue)); + + while ((i >= sizeof(event)) && !queue_empty(&as->queue)) { + event = queue_get_event(&as->queue); + + ret = -EFAULT; + if (copy_to_user(buf, &event, sizeof(event))) + break; + + if (event == APM_SYS_SUSPEND || event == APM_USER_SUSPEND) + as->suspend_state = SUSPEND_READ; + + buf += sizeof(event); + i -= sizeof(event); + } + + if (i < count) + ret = count - i; + + return ret; +} + +static unsigned int apm_poll(struct file *fp, poll_table * wait) +{ + struct apm_user *as = fp->private_data; + + poll_wait(fp, &apm_waitqueue, wait); + return queue_empty(&as->queue) ? 0 : POLLIN | POLLRDNORM; +} + +/* + * apm_ioctl - handle APM ioctl + * + * APM_IOC_SUSPEND + * This IOCTL is overloaded, and performs two functions. It is used to: + * - initiate a suspend + * - acknowledge a suspend read from /dev/apm_bios. + * Only when everyone who has opened /dev/apm_bios with write permission + * has acknowledge does the actual suspend happen. + */ +static int +apm_ioctl(struct inode * inode, struct file *filp, u_int cmd, u_long arg) +{ + struct apm_user *as = filp->private_data; + unsigned long flags; + int err = -EINVAL; + + if (!as->suser || !as->writer) + return -EPERM; + + switch (cmd) { + case APM_IOC_SUSPEND: + as->suspend_result = -EINTR; + + if (as->suspend_state == SUSPEND_READ) { + /* + * If we read a suspend command from /dev/apm_bios, + * then the corresponding APM_IOC_SUSPEND ioctl is + * interpreted as an acknowledge. + */ + as->suspend_state = SUSPEND_ACKED; + suspends_pending--; + } else { + /* + * Otherwise it is a request to suspend the system. + * Queue an event for all readers, and expect an + * acknowledge from all writers who haven't already + * acknowledged. + */ + queue_event(APM_USER_SUSPEND, as); + } + + /* + * If there are no further acknowledges required, suspend + * the system. + */ + if (suspends_pending == 0) + apm_suspend(); + + /* + * Wait for the suspend/resume to complete. If there are + * pending acknowledges, we wait here for them. + * + * Note that we need to ensure that the PM subsystem does + * not kick us out of the wait when it suspends the threads. + */ + flags = current->flags; + current->flags |= PF_NOFREEZE; + + /* + * Note: do not allow a thread which is acking the suspend + * to escape until the resume is complete. + */ + if (as->suspend_state == SUSPEND_ACKED) + wait_event(apm_suspend_waitqueue, + as->suspend_state == SUSPEND_DONE); + else + wait_event_interruptible(apm_suspend_waitqueue, + as->suspend_state == SUSPEND_DONE); + + current->flags = flags; + err = as->suspend_result; + as->suspend_state = SUSPEND_NONE; + break; + } + + return err; +} + +static int apm_release(struct inode * inode, struct file * filp) +{ + struct apm_user *as = filp->private_data; + filp->private_data = NULL; + + down_write(&user_list_lock); + list_del(&as->list); + up_write(&user_list_lock); + + /* + * We are now unhooked from the chain. As far as new + * events are concerned, we no longer exist. However, we + * need to balance suspends_pending, which means the + * possibility of sleeping. + */ + if (as->suspend_state != SUSPEND_NONE) { + suspends_pending -= 1; + if (suspends_pending == 0) + apm_suspend(); + } + + kfree(as); + return 0; +} + +static int apm_open(struct inode * inode, struct file * filp) +{ + struct apm_user *as; + + as = kzalloc(sizeof(*as), GFP_KERNEL); + if (as) { + /* + * XXX - this is a tiny bit broken, when we consider BSD + * process accounting. If the device is opened by root, we + * instantly flag that we used superuser privs. Who knows, + * we might close the device immediately without doing a + * privileged operation -- cevans + */ + as->suser = capable(CAP_SYS_ADMIN); + as->writer = (filp->f_mode & FMODE_WRITE) == FMODE_WRITE; + as->reader = (filp->f_mode & FMODE_READ) == FMODE_READ; + + down_write(&user_list_lock); + list_add(&as->list, &apm_user_list); + up_write(&user_list_lock); + + filp->private_data = as; + } + + return as ? 0 : -ENOMEM; +} + +static struct file_operations apm_bios_fops = { + .owner = THIS_MODULE, + .read = apm_read, + .poll = apm_poll, + .ioctl = apm_ioctl, + .open = apm_open, + .release = apm_release, +}; + +static struct miscdevice apm_device = { + .minor = APM_MINOR_DEV, + .name = "apm_bios", + .fops = &apm_bios_fops +}; + + +#ifdef CONFIG_PROC_FS +/* + * Arguments, with symbols from linux/apm_bios.h. + * + * 0) Linux driver version (this will change if format changes) + * 1) APM BIOS Version. Usually 1.0, 1.1 or 1.2. + * 2) APM flags from APM Installation Check (0x00): + * bit 0: APM_16_BIT_SUPPORT + * bit 1: APM_32_BIT_SUPPORT + * bit 2: APM_IDLE_SLOWS_CLOCK + * bit 3: APM_BIOS_DISABLED + * bit 4: APM_BIOS_DISENGAGED + * 3) AC line status + * 0x00: Off-line + * 0x01: On-line + * 0x02: On backup power (BIOS >= 1.1 only) + * 0xff: Unknown + * 4) Battery status + * 0x00: High + * 0x01: Low + * 0x02: Critical + * 0x03: Charging + * 0x04: Selected battery not present (BIOS >= 1.2 only) + * 0xff: Unknown + * 5) Battery flag + * bit 0: High + * bit 1: Low + * bit 2: Critical + * bit 3: Charging + * bit 7: No system battery + * 0xff: Unknown + * 6) Remaining battery life (percentage of charge): + * 0-100: valid + * -1: Unknown + * 7) Remaining battery life (time units): + * Number of remaining minutes or seconds + * -1: Unknown + * 8) min = minutes; sec = seconds + */ +static int apm_read_proc(char *buf, char **start, off_t fpos, int length) +{ + if (likely(apm_get_info)) + return apm_get_info(buf, start, fpos, length); + + return -EINVAL; +} +#endif + +static int kapmd(void *arg) +{ + daemonize("kapmd"); + current->flags |= PF_NOFREEZE; + + do { + apm_event_t event; + + wait_event_interruptible(kapmd_wait, + !queue_empty(&kapmd_queue) || !pm_active); + + if (!pm_active) + break; + + spin_lock_irq(&kapmd_queue_lock); + event = 0; + if (!queue_empty(&kapmd_queue)) + event = queue_get_event(&kapmd_queue); + spin_unlock_irq(&kapmd_queue_lock); + + switch (event) { + case 0: + break; + + case APM_LOW_BATTERY: + case APM_POWER_STATUS_CHANGE: + queue_event(event, NULL); + break; + + case APM_USER_SUSPEND: + case APM_SYS_SUSPEND: + queue_event(event, NULL); + if (suspends_pending == 0) + apm_suspend(); + break; + + case APM_CRITICAL_SUSPEND: + apm_suspend(); + break; + } + } while (1); + + complete_and_exit(&kapmd_exit, 0); +} + +static int __init apm_init(void) +{ + int ret; + + pm_active = 1; + + ret = kernel_thread(kapmd, NULL, CLONE_KERNEL); + if (unlikely(ret < 0)) { + pm_active = 0; + return ret; + } + + create_proc_info_entry("apm", 0, NULL, apm_read_proc); + + ret = misc_register(&apm_device); + if (unlikely(ret != 0)) { + remove_proc_entry("apm", NULL); + + pm_active = 0; + wake_up(&kapmd_wait); + wait_for_completion(&kapmd_exit); + } + + return ret; +} + +static void __exit apm_exit(void) +{ + misc_deregister(&apm_device); + remove_proc_entry("apm", NULL); + + pm_active = 0; + wake_up(&kapmd_wait); + wait_for_completion(&kapmd_exit); +} + +module_init(apm_init); +module_exit(apm_exit); + +MODULE_AUTHOR("Stephen Rothwell, Andriy Skulysh"); +MODULE_DESCRIPTION("Advanced Power Management"); +MODULE_LICENSE("GPL");
diff --git a/arch/sh/kernel/cf-enabler.c b/arch/sh/kernel/cf-enabler.c index f1f9ab8..3e5fa1e 100644 --- a/arch/sh/kernel/cf-enabler.c +++ b/arch/sh/kernel/cf-enabler.c
@@ -10,7 +10,8 @@ */ #include <linux/init.h> - +#include <linux/mm.h> +#include <linux/vmalloc.h> #include <asm/io.h> #include <asm/irq.h> @@ -32,8 +33,6 @@ /* SH4 can't access PCMCIA interface through P2 area. * we must remap it with appropreate attribute bit of the page set. * this part is based on Greg Banks' hd64465_ss.c implementation - Masahiro Abe */ -#include <linux/mm.h> -#include <linux/vmalloc.h> #if defined(CONFIG_CF_AREA6) #define slot_no 0 @@ -41,9 +40,6 @@ #define slot_no 1 #endif -/* defined in mm/ioremap.c */ -extern void * p3_ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags); - /* use this pointer to access to directly connected compact flash io area*/ void *cf_io_base; @@ -62,7 +58,7 @@ return -ENOMEM; } /* printk("p3_ioremap(paddr=0x%08lx, psize=0x%08lx, prot=0x%08lx)=0x%08lx\n", - paddrbase, psize, prot.pgprot, cf_io_base);*/ + paddrbase, psize, prot.pgprot, cf_io_base);*/ /* XXX : do we need attribute and common-memory area also? */ @@ -87,7 +83,7 @@ } #if defined(CONFIG_SH_SOLUTION_ENGINE) -#include <asm/se/se.h> +#include <asm/se.h> /* * SolutionEngine
diff --git a/arch/sh/kernel/cpu/Makefile b/arch/sh/kernel/cpu/Makefile index 59d5b74..fb5dac0 100644 --- a/arch/sh/kernel/cpu/Makefile +++ b/arch/sh/kernel/cpu/Makefile
@@ -8,6 +8,5 @@ obj-$(CONFIG_CPU_SH3) += sh3/ obj-$(CONFIG_CPU_SH4) += sh4/ -obj-$(CONFIG_SH_RTC) += rtc.o obj-$(CONFIG_UBC_WAKEUP) += ubc.o obj-$(CONFIG_SH_ADC) += adc.o
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c index 97fa37f..51ec64c 100644 --- a/arch/sh/kernel/cpu/clock.c +++ b/arch/sh/kernel/cpu/clock.c
@@ -1,7 +1,7 @@ /* * arch/sh/kernel/cpu/clock.c - SuperH clock framework * - * Copyright (C) 2005 Paul Mundt + * Copyright (C) 2005, 2006 Paul Mundt * * This clock framework is derived from the OMAP version by: * @@ -15,6 +15,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/module.h> +#include <linux/mutex.h> #include <linux/list.h> #include <linux/kref.h> #include <linux/seq_file.h> @@ -24,7 +25,7 @@ static LIST_HEAD(clock_list); static DEFINE_SPINLOCK(clock_lock); -static DECLARE_MUTEX(clock_list_sem); +static DEFINE_MUTEX(clock_list_sem); /* * Each subtype is expected to define the init routines for these clocks, @@ -140,21 +141,21 @@ int clk_register(struct clk *clk) { - down(&clock_list_sem); + mutex_lock(&clock_list_sem); list_add(&clk->node, &clock_list); kref_init(&clk->kref); - up(&clock_list_sem); + mutex_unlock(&clock_list_sem); return 0; } void clk_unregister(struct clk *clk) { - down(&clock_list_sem); + mutex_lock(&clock_list_sem); list_del(&clk->node); - up(&clock_list_sem); + mutex_unlock(&clock_list_sem); } inline unsigned long clk_get_rate(struct clk *clk) @@ -198,14 +199,14 @@ { struct clk *p, *clk = ERR_PTR(-ENOENT); - down(&clock_list_sem); + mutex_lock(&clock_list_sem); list_for_each_entry(p, &clock_list, node) { if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) { clk = p; break; } } - up(&clock_list_sem); + mutex_unlock(&clock_list_sem); return clk; } @@ -225,7 +226,7 @@ { int i, ret = 0; - BUG_ON(unlikely(!master_clk.rate)); + BUG_ON(!master_clk.rate); for (i = 0; i < ARRAY_SIZE(onchip_clocks); i++) { struct clk *clk = onchip_clocks[i];
diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c index 868e68b..bfb90eb 100644 --- a/arch/sh/kernel/cpu/init.c +++ b/arch/sh/kernel/cpu/init.c
@@ -4,6 +4,7 @@ * CPU init code * * Copyright (C) 2002, 2003 Paul Mundt + * Copyright (C) 2003 Richard Curnow * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -13,6 +14,7 @@ #include <linux/kernel.h> #include <asm/processor.h> #include <asm/uaccess.h> +#include <asm/page.h> #include <asm/system.h> #include <asm/cacheflush.h> #include <asm/cache.h> @@ -51,7 +53,15 @@ ccr = ctrl_inl(CCR); /* - * If the cache is already enabled .. flush it. + * At this point we don't know whether the cache is enabled or not - a + * bootloader may have enabled it. There are at least 2 things that + * could be dirty in the cache at this point: + * 1. kernel command line set up by boot loader + * 2. spilled registers from the prolog of this function + * => before re-initialising the cache, we must do a purge of the whole + * cache out to memory for safety. As long as nothing is spilled + * during the loop to lines that have already been done, this is safe. + * - RPC */ if (ccr & CCR_CACHE_ENABLE) { unsigned long ways, waysize, addrstart; @@ -98,6 +108,8 @@ /* Force EMODE if possible */ if (cpu_data->dcache.ways > 1) flags |= CCR_CACHE_EMODE; + else + flags &= ~CCR_CACHE_EMODE; #endif #ifdef CONFIG_SH_WRITETHROUGH @@ -112,6 +124,9 @@ /* Turn on OCRAM -- halve the OC */ flags |= CCR_CACHE_ORA; cpu_data->dcache.sets >>= 1; + + cpu_data->dcache.way_size = cpu_data->dcache.sets * + cpu_data->dcache.linesz; #endif ctrl_outl(flags, CCR); @@ -184,6 +199,10 @@ /* Init the cache */ cache_init(); + shm_align_mask = max_t(unsigned long, + cpu_data->dcache.way_size - 1, + PAGE_SIZE - 1); + /* Disable the FPU */ if (fpu_disabled) { printk("FPU Disabled\n");
diff --git a/arch/sh/kernel/cpu/irq/Makefile b/arch/sh/kernel/cpu/irq/Makefile index e3cccea..1c034c2 100644 --- a/arch/sh/kernel/cpu/irq/Makefile +++ b/arch/sh/kernel/cpu/irq/Makefile
@@ -3,5 +3,6 @@ # obj-y += ipr.o imask.o -obj-$(CONFIG_CPU_HAS_PINT_IRQ) += pint.o -obj-$(CONFIG_CPU_HAS_INTC2_IRQ) += intc2.o +obj-$(CONFIG_CPU_HAS_PINT_IRQ) += pint.o +obj-$(CONFIG_CPU_HAS_MASKREG_IRQ) += maskreg.o +obj-$(CONFIG_CPU_HAS_INTC2_IRQ) += intc2.o
diff --git a/arch/sh/kernel/cpu/irq/intc2.c b/arch/sh/kernel/cpu/irq/intc2.c index 30064bf..e30e4b7 100644 --- a/arch/sh/kernel/cpu/irq/intc2.c +++ b/arch/sh/kernel/cpu/irq/intc2.c
@@ -241,9 +241,9 @@ /* 110-111 reserved/unused */ #elif defined(CONFIG_CPU_SUBTYPE_SH7780) { TIMER_IRQ, 0, 24, 0, INTC_TMU0_MSK, 2}, -#ifdef CONFIG_SH_RTC - { RTC_IRQ, 4, 0, 0, INTC_RTC_MSK, TIMER_PRIORITY }, -#endif + { 21, 1, 0, 0, INTC_RTC_MSK, TIMER_PRIORITY }, + { 22, 1, 1, 0, INTC_RTC_MSK, TIMER_PRIORITY }, + { 23, 1, 2, 0, INTC_RTC_MSK, TIMER_PRIORITY }, { SCIF0_ERI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY }, { SCIF0_RXI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY }, { SCIF0_BRI_IRQ, 8, 24, 0, INTC_SCIF0_MSK, SCIF0_PRIORITY },
diff --git a/arch/sh/kernel/cpu/irq/ipr.c b/arch/sh/kernel/cpu/irq/ipr.c index 0f54594..f785822 100644 --- a/arch/sh/kernel/cpu/irq/ipr.c +++ b/arch/sh/kernel/cpu/irq/ipr.c
@@ -57,31 +57,27 @@ static void disable_ipr_irq(unsigned int irq) { - unsigned long val, flags; + unsigned long val; unsigned int addr = ipr_data[irq].addr; unsigned short mask = 0xffff ^ (0x0f << ipr_data[irq].shift); /* Set the priority in IPR to 0 */ - local_irq_save(flags); val = ctrl_inw(addr); val &= mask; ctrl_outw(val, addr); - local_irq_restore(flags); } static void enable_ipr_irq(unsigned int irq) { - unsigned long val, flags; + unsigned long val; unsigned int addr = ipr_data[irq].addr; int priority = ipr_data[irq].priority; unsigned short value = (priority << ipr_data[irq].shift); /* Set priority in IPR back to original value */ - local_irq_save(flags); val = ctrl_inw(addr); val |= value; ctrl_outw(val, addr); - local_irq_restore(flags); } static void mask_and_ack_ipr(unsigned int irq) @@ -89,6 +85,7 @@ disable_ipr_irq(irq); #if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) /* This is needed when we use edge triggered setting */ /* XXX: Is it really needed? */ @@ -123,7 +120,7 @@ #ifndef CONFIG_CPU_SUBTYPE_SH7780 make_ipr_irq(TIMER_IRQ, TIMER_IPR_ADDR, TIMER_IPR_POS, TIMER_PRIORITY); make_ipr_irq(TIMER1_IRQ, TIMER1_IPR_ADDR, TIMER1_IPR_POS, TIMER1_PRIORITY); -#if defined(CONFIG_SH_RTC) +#ifdef RTC_IRQ make_ipr_irq(RTC_IRQ, RTC_IPR_ADDR, RTC_IPR_POS, RTC_PRIORITY); #endif @@ -162,6 +159,7 @@ #endif #if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) /* * Initialize the Interrupt Controller (INTC) @@ -192,6 +190,8 @@ /* Perform the machine specific initialisation */ if (sh_mv.mv_init_irq != NULL) sh_mv.mv_init_irq(); + + irq_ctx_init(smp_processor_id()); } #if !defined(CONFIG_CPU_HAS_PINT_IRQ)
diff --git a/arch/sh/boards/adx/irq_maskreg.c b/arch/sh/kernel/cpu/irq/maskreg.c similarity index 63% rename from arch/sh/boards/adx/irq_maskreg.c rename to arch/sh/kernel/cpu/irq/maskreg.c index 4b2abe5..492db31 100644 --- a/arch/sh/boards/adx/irq_maskreg.c +++ b/arch/sh/kernel/cpu/irq/maskreg.c
@@ -1,30 +1,23 @@ /* - * linux/arch/sh/kernel/irq_maskreg.c + * Interrupt handling for Simple external interrupt mask register * * Copyright (C) 2001 A&D Co., Ltd. <http://www.aandd.co.jp> * - * This file may be copied or modified under the terms of the GNU - * General Public License. See linux/COPYING for more information. - * - * Interrupt handling for Simple external interrupt mask register - * * This is for the machine which have single 16 bit register * for masking external IRQ individually. - * Each bit of the register is for masking each interrupt. + * Each bit of the register is for masking each interrupt. + * + * This file may be copied or modified under the terms of the GNU + * General Public License. See linux/COPYING for more information. */ - #include <linux/kernel.h> #include <linux/init.h> #include <linux/irq.h> - #include <asm/system.h> #include <asm/io.h> -#include <asm/machvec.h> -/* address of external interrupt mask register - * address must be set prior to use these (maybe in init_XXX_irq()) - * XXX : is it better to use .config than specifying it in code? */ -unsigned short *irq_mask_register = 0; +/* address of external interrupt mask register */ +unsigned long irq_mask_register; /* forward declaration */ static unsigned int startup_maskreg_irq(unsigned int irq); @@ -36,7 +29,7 @@ /* hw_interrupt_type */ static struct hw_interrupt_type maskreg_irq_type = { - .typename = " Mask Register", + .typename = "Mask Register", .startup = startup_maskreg_irq, .shutdown = shutdown_maskreg_irq, .enable = enable_maskreg_irq, @@ -47,7 +40,7 @@ /* actual implementatin */ static unsigned int startup_maskreg_irq(unsigned int irq) -{ +{ enable_maskreg_irq(irq); return 0; /* never anything pending */ } @@ -59,32 +52,26 @@ static void disable_maskreg_irq(unsigned int irq) { - if (irq_mask_register) { - unsigned long flags; - unsigned short val, mask = 0x01 << irq; + unsigned short val, mask = 0x01 << irq; - /* Set "irq"th bit */ - local_irq_save(flags); - val = ctrl_inw((unsigned long)irq_mask_register); - val |= mask; - ctrl_outw(val, (unsigned long)irq_mask_register); - local_irq_restore(flags); - } + BUG_ON(!irq_mask_register); + + /* Set "irq"th bit */ + val = ctrl_inw(irq_mask_register); + val |= mask; + ctrl_outw(val, irq_mask_register); } static void enable_maskreg_irq(unsigned int irq) { - if (irq_mask_register) { - unsigned long flags; - unsigned short val, mask = ~(0x01 << irq); + unsigned short val, mask = ~(0x01 << irq); - /* Clear "irq"th bit */ - local_irq_save(flags); - val = ctrl_inw((unsigned long)irq_mask_register); - val &= mask; - ctrl_outw(val, (unsigned long)irq_mask_register); - local_irq_restore(flags); - } + BUG_ON(!irq_mask_register); + + /* Clear "irq"th bit */ + val = ctrl_inw(irq_mask_register); + val &= mask; + ctrl_outw(val, irq_mask_register); } static void mask_and_ack_maskreg(unsigned int irq) @@ -101,6 +88,6 @@ void make_maskreg_irq(unsigned int irq) { disable_irq_nosync(irq); - irq_desc[irq].chip = &maskreg_irq_type; + irq_desc[irq].handler = &maskreg_irq_type; disable_maskreg_irq(irq); }
diff --git a/arch/sh/kernel/cpu/irq/pint.c b/arch/sh/kernel/cpu/irq/pint.c index 80cd810..17f47b3 100644 --- a/arch/sh/kernel/cpu/irq/pint.c +++ b/arch/sh/kernel/cpu/irq/pint.c
@@ -48,26 +48,22 @@ static void disable_pint_irq(unsigned int irq) { - unsigned long val, flags; + unsigned long val; - local_irq_save(flags); val = ctrl_inw(INTC_INTER); val &= ~(1 << (irq - PINT_IRQ_BASE)); ctrl_outw(val, INTC_INTER); /* disable PINTn */ portcr_mask &= ~(3 << (irq - PINT_IRQ_BASE)*2); - local_irq_restore(flags); } static void enable_pint_irq(unsigned int irq) { - unsigned long val, flags; + unsigned long val; - local_irq_save(flags); val = ctrl_inw(INTC_INTER); val |= 1 << (irq - PINT_IRQ_BASE); ctrl_outw(val, INTC_INTER); /* enable PINTn */ portcr_mask |= 3 << (irq - PINT_IRQ_BASE)*2; - local_irq_restore(flags); } static void mask_and_ack_pint(unsigned int irq)
diff --git a/arch/sh/kernel/cpu/rtc.c b/arch/sh/kernel/cpu/rtc.c deleted file mode 100644 index 4304cf7..0000000 --- a/arch/sh/kernel/cpu/rtc.c +++ /dev/null
@@ -1,128 +0,0 @@ -/* - * linux/arch/sh/kernel/rtc.c -- SH3 / SH4 on-chip RTC support - * - * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org> - * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka - */ - -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/time.h> -#include <linux/bcd.h> -#include <asm/io.h> -#include <asm/rtc.h> - -void sh_rtc_gettimeofday(struct timespec *ts) -{ - unsigned int sec128, sec, sec2, min, hr, wk, day, mon, yr, yr100, cf_bit; - unsigned long flags; - - again: - do { - local_irq_save(flags); - ctrl_outb(0, RCR1); /* Clear CF-bit */ - sec128 = ctrl_inb(R64CNT); - sec = ctrl_inb(RSECCNT); - min = ctrl_inb(RMINCNT); - hr = ctrl_inb(RHRCNT); - wk = ctrl_inb(RWKCNT); - day = ctrl_inb(RDAYCNT); - mon = ctrl_inb(RMONCNT); -#if defined(CONFIG_CPU_SH4) - yr = ctrl_inw(RYRCNT); - yr100 = (yr >> 8); - yr &= 0xff; -#else - yr = ctrl_inb(RYRCNT); - yr100 = (yr == 0x99) ? 0x19 : 0x20; -#endif - sec2 = ctrl_inb(R64CNT); - cf_bit = ctrl_inb(RCR1) & RCR1_CF; - local_irq_restore(flags); - } while (cf_bit != 0 || ((sec128 ^ sec2) & RTC_BIT_INVERTED) != 0); - - BCD_TO_BIN(yr100); - BCD_TO_BIN(yr); - BCD_TO_BIN(mon); - BCD_TO_BIN(day); - BCD_TO_BIN(hr); - BCD_TO_BIN(min); - BCD_TO_BIN(sec); - - if (yr > 99 || mon < 1 || mon > 12 || day > 31 || day < 1 || - hr > 23 || min > 59 || sec > 59) { - printk(KERN_ERR - "SH RTC: invalid value, resetting to 1 Jan 2000\n"); - local_irq_save(flags); - ctrl_outb(RCR2_RESET, RCR2); /* Reset & Stop */ - ctrl_outb(0, RSECCNT); - ctrl_outb(0, RMINCNT); - ctrl_outb(0, RHRCNT); - ctrl_outb(6, RWKCNT); - ctrl_outb(1, RDAYCNT); - ctrl_outb(1, RMONCNT); -#if defined(CONFIG_CPU_SH4) - ctrl_outw(0x2000, RYRCNT); -#else - ctrl_outb(0, RYRCNT); -#endif - ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2); /* Start */ - goto again; - } - -#if RTC_BIT_INVERTED != 0 - if ((sec128 & RTC_BIT_INVERTED)) - sec--; -#endif - - ts->tv_sec = mktime(yr100 * 100 + yr, mon, day, hr, min, sec); - ts->tv_nsec = ((sec128 * 1000000) / 128) * 1000; -} - -/* - * Changed to only care about tv_sec, and not the full timespec struct - * (i.e. tv_nsec). It can easily be switched to timespec for future cpus - * that support setting usec or nsec RTC values. - */ -int sh_rtc_settimeofday(const time_t secs) -{ - int retval = 0; - int real_seconds, real_minutes, cmos_minutes; - unsigned long flags; - - local_irq_save(flags); - ctrl_outb(RCR2_RESET, RCR2); /* Reset pre-scaler & stop RTC */ - - cmos_minutes = ctrl_inb(RMINCNT); - BCD_TO_BIN(cmos_minutes); - - /* - * since we're only adjusting minutes and seconds, - * don't interfere with hour overflow. This avoids - * messing with unknown time zones but requires your - * RTC not to be off by more than 15 minutes - */ - real_seconds = secs % 60; - real_minutes = secs / 60; - if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1) - real_minutes += 30; /* correct for half hour time zone */ - real_minutes %= 60; - - if (abs(real_minutes - cmos_minutes) < 30) { - BIN_TO_BCD(real_seconds); - BIN_TO_BCD(real_minutes); - ctrl_outb(real_seconds, RSECCNT); - ctrl_outb(real_minutes, RMINCNT); - } else { - printk(KERN_WARNING - "set_rtc_time: can't update from %d to %d\n", - cmos_minutes, real_minutes); - retval = -1; - } - - ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2); /* Start RTC */ - local_irq_restore(flags); - - return retval; -}
diff --git a/arch/sh/kernel/cpu/sh3/Makefile b/arch/sh/kernel/cpu/sh3/Makefile index b54dbb9..58d3815 100644 --- a/arch/sh/kernel/cpu/sh3/Makefile +++ b/arch/sh/kernel/cpu/sh3/Makefile
@@ -4,10 +4,21 @@ obj-y := ex.o probe.o +# CPU subtype setup +obj-$(CONFIG_CPU_SUBTYPE_SH7705) += setup-sh7705.o +obj-$(CONFIG_CPU_SUBTYPE_SH7706) += setup-sh7709.o +obj-$(CONFIG_CPU_SUBTYPE_SH7707) += setup-sh7709.o +obj-$(CONFIG_CPU_SUBTYPE_SH7708) += setup-sh7708.o +obj-$(CONFIG_CPU_SUBTYPE_SH7709) += setup-sh7709.o +obj-$(CONFIG_CPU_SUBTYPE_SH7300) += setup-sh7300.o +obj-$(CONFIG_CPU_SUBTYPE_SH7710) += setup-sh7710.o + +# Primary on-chip clocks (common) clock-$(CONFIG_CPU_SH3) := clock-sh3.o clock-$(CONFIG_CPU_SUBTYPE_SH7300) := clock-sh7300.o clock-$(CONFIG_CPU_SUBTYPE_SH7705) := clock-sh7705.o +clock-$(CONFIG_CPU_SUBTYPE_SH7706) := clock-sh7706.o clock-$(CONFIG_CPU_SUBTYPE_SH7709) := clock-sh7709.o +clock-$(CONFIG_CPU_SUBTYPE_SH7710) := clock-sh7300.o obj-y += $(clock-y) -
diff --git a/arch/sh/kernel/cpu/sh3/clock-sh7706.c b/arch/sh/kernel/cpu/sh3/clock-sh7706.c new file mode 100644 index 0000000..0cf96f9 --- /dev/null +++ b/arch/sh/kernel/cpu/sh3/clock-sh7706.c
@@ -0,0 +1,84 @@ +/* + * arch/sh/kernel/cpu/sh3/clock-sh7706.c + * + * SH7706 support for the clock framework + * + * Copyright (C) 2006 Takashi YOSHII + * + * Based on arch/sh/kernel/cpu/sh3/clock-sh7709.c + * Copyright (C) 2005 Andriy Skulysh + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <linux/kernel.h> +#include <asm/clock.h> +#include <asm/freq.h> +#include <asm/io.h> + +static int stc_multipliers[] = { 1, 2, 4, 1, 3, 6, 1, 1 }; +static int ifc_divisors[] = { 1, 2, 4, 1, 3, 1, 1, 1 }; +static int pfc_divisors[] = { 1, 2, 4, 1, 3, 6, 1, 1 }; + +static void master_clk_init(struct clk *clk) +{ + int frqcr = ctrl_inw(FRQCR); + int idx = ((frqcr & 0x2000) >> 11) | (frqcr & 0x0003); + + clk->rate *= pfc_divisors[idx]; +} + +static struct clk_ops sh7706_master_clk_ops = { + .init = master_clk_init, +}; + +static void module_clk_recalc(struct clk *clk) +{ + int frqcr = ctrl_inw(FRQCR); + int idx = ((frqcr & 0x2000) >> 11) | (frqcr & 0x0003); + + clk->rate = clk->parent->rate / pfc_divisors[idx]; +} + +static struct clk_ops sh7706_module_clk_ops = { + .recalc = module_clk_recalc, +}; + +static void bus_clk_recalc(struct clk *clk) +{ + int frqcr = ctrl_inw(FRQCR); + int idx = ((frqcr & 0x8000) >> 13) | ((frqcr & 0x0030) >> 4); + + clk->rate = clk->parent->rate / stc_multipliers[idx]; +} + +static struct clk_ops sh7706_bus_clk_ops = { + .recalc = bus_clk_recalc, +}; + +static void cpu_clk_recalc(struct clk *clk) +{ + int frqcr = ctrl_inw(FRQCR); + int idx = ((frqcr & 0x4000) >> 12) | ((frqcr & 0x000c) >> 2); + + clk->rate = clk->parent->rate / ifc_divisors[idx]; +} + +static struct clk_ops sh7706_cpu_clk_ops = { + .recalc = cpu_clk_recalc, +}; + +static struct clk_ops *sh7706_clk_ops[] = { + &sh7706_master_clk_ops, + &sh7706_module_clk_ops, + &sh7706_bus_clk_ops, + &sh7706_cpu_clk_ops, +}; + +void __init arch_init_clk_ops(struct clk_ops **ops, int idx) +{ + if (idx < ARRAY_SIZE(sh7706_clk_ops)) + *ops = sh7706_clk_ops[idx]; +}
diff --git a/arch/sh/kernel/cpu/sh3/ex.S b/arch/sh/kernel/cpu/sh3/ex.S index cc04e9e..44daf44 100644 --- a/arch/sh/kernel/cpu/sh3/ex.S +++ b/arch/sh/kernel/cpu/sh3/ex.S
@@ -84,8 +84,12 @@ .long do_IRQ ! rovi .long do_IRQ .long do_IRQ /* 5E0 */ -#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \ - defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) +#if defined(CONFIG_CPU_SUBTYPE_SH7707) || \ + defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ + defined(CONFIG_CPU_SUBTYPE_SH7300) || \ + defined(CONFIG_CPU_SUBTYPE_SH7705) || \ + defined(CONFIG_CPU_SUBTYPE_SH7710) .long do_IRQ ! 32 IRQ irq0 /* 600 */ .long do_IRQ ! 33 irq1 .long do_IRQ ! 34 irq2 @@ -147,6 +151,51 @@ .long do_IRQ ! 62 PCC pcc0i .long do_IRQ ! 63 pcc1i /* 9E0 */ #endif +#if defined(CONFIG_CPU_SUBTYPE_SH7710) + .long exception_none ! 61 /* 9A0 */ + .long exception_none ! 62 + .long exception_none ! 63 + .long exception_none ! 64 /* A00 */ + .long exception_none ! 65 + .long exception_none ! 66 + .long exception_none ! 67 + .long exception_none ! 68 + .long exception_none ! 69 + .long exception_none ! 70 + .long exception_none ! 71 + .long exception_none ! 72 /* B00 */ + .long exception_none ! 73 + .long exception_none ! 74 + .long exception_none ! 75 + .long do_IRQ ! 76 DMAC2 dei4 /* B80 */ + .long do_IRQ ! 77 DMAC2 dei5 + .long exception_none ! 78 + .long do_IRQ ! 79 IPSEC ipseci /* BE0 */ + .long do_IRQ ! 80 EDMAC eint0 /* C00 */ + .long do_IRQ ! 81 EDMAC eint1 + .long do_IRQ ! 82 EDMAC eint2 + .long exception_none ! 83 /* C60 */ + .long exception_none ! 84 + .long exception_none ! 85 + .long exception_none ! 86 + .long exception_none ! 87 + .long exception_none ! 88 /* D00 */ + .long exception_none ! 89 + .long exception_none ! 90 + .long exception_none ! 91 + .long exception_none ! 92 + .long exception_none ! 93 + .long exception_none ! 94 + .long exception_none ! 95 + .long do_IRQ ! 96 SIOF eri0 /* E00 */ + .long do_IRQ ! 97 txi0 + .long do_IRQ ! 98 rxi0 + .long do_IRQ ! 99 cci0 + .long do_IRQ ! 100 eri1 /* E80 */ + .long do_IRQ ! 101 txi1 + .long do_IRQ ! 102 rxi2 + .long do_IRQ ! 103 cci3 +#endif #if defined(CONFIG_CPU_SUBTYPE_SH7300) .long do_IRQ ! 64 .long do_IRQ ! 65 @@ -195,4 +244,3 @@ .long do_IRQ ! 108 #endif #endif -
diff --git a/arch/sh/kernel/cpu/sh3/probe.c b/arch/sh/kernel/cpu/sh3/probe.c index 5cdc886..e670988 100644 --- a/arch/sh/kernel/cpu/sh3/probe.c +++ b/arch/sh/kernel/cpu/sh3/probe.c
@@ -72,6 +72,12 @@ cpu_data->dcache.sets = 256; cpu_data->type = CPU_SH7729; +#if defined(CONFIG_CPU_SUBTYPE_SH7706) + cpu_data->type = CPU_SH7706; +#endif +#if defined(CONFIG_CPU_SUBTYPE_SH7710) + cpu_data->type = CPU_SH7710; +#endif #if defined(CONFIG_CPU_SUBTYPE_SH7705) cpu_data->type = CPU_SH7705;
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7300.c b/arch/sh/kernel/cpu/sh3/setup-sh7300.c new file mode 100644 index 0000000..ab4d204 --- /dev/null +++ b/arch/sh/kernel/cpu/sh3/setup-sh7300.c
@@ -0,0 +1,43 @@ +/* + * SH7300 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xa4430000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCI, + .irqs = { 80, 80, 80, 80 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7300_devices[] __initdata = { + &sci_device, +}; + +static int __init sh7300_devices_setup(void) +{ + return platform_add_devices(sh7300_devices, + ARRAY_SIZE(sh7300_devices)); +} +__initcall(sh7300_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7705.c b/arch/sh/kernel/cpu/sh3/setup-sh7705.c new file mode 100644 index 0000000..a8e41c5 --- /dev/null +++ b/arch/sh/kernel/cpu/sh3/setup-sh7705.c
@@ -0,0 +1,48 @@ +/* + * SH7705 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xa4400000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 52, 53, 55, 54 }, + }, { + .mapbase = 0xa4410000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 56, 57, 59, 58 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7705_devices[] __initdata = { + &sci_device, +}; + +static int __init sh7705_devices_setup(void) +{ + return platform_add_devices(sh7705_devices, + ARRAY_SIZE(sh7705_devices)); +} +__initcall(sh7705_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7708.c b/arch/sh/kernel/cpu/sh3/setup-sh7708.c new file mode 100644 index 0000000..f933723 --- /dev/null +++ b/arch/sh/kernel/cpu/sh3/setup-sh7708.c
@@ -0,0 +1,43 @@ +/* + * SH7708 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xfffffe80, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCI, + .irqs = { 23, 24, 25, 0 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7708_devices[] __initdata = { + &sci_device, +}; + +static int __init sh7708_devices_setup(void) +{ + return platform_add_devices(sh7708_devices, + ARRAY_SIZE(sh7708_devices)); +} +__initcall(sh7708_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7709.c b/arch/sh/kernel/cpu/sh3/setup-sh7709.c new file mode 100644 index 0000000..ff43ef2 --- /dev/null +++ b/arch/sh/kernel/cpu/sh3/setup-sh7709.c
@@ -0,0 +1,53 @@ +/* + * SH7707/SH7709 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xfffffe80, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCI, + .irqs = { 23, 24, 25, 0 }, + }, { + .mapbase = 0xa4000150, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 56, 57, 59, 58 }, + }, { + .mapbase = 0xa4000140, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_IRDA, + .irqs = { 52, 53, 55, 54 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7709_devices[] __initdata = { + &sci_device, +}; + +static int __init sh7709_devices_setup(void) +{ + return platform_add_devices(sh7709_devices, + ARRAY_SIZE(sh7709_devices)); +} +__initcall(sh7709_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c new file mode 100644 index 0000000..895f99e --- /dev/null +++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
@@ -0,0 +1,43 @@ +/* + * SH7710 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xa4400000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 52, 53, 55, 54 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7710_devices[] __initdata = { + &sci_device, +}; + +static int __init sh7710_devices_setup(void) +{ + return platform_add_devices(sh7710_devices, + ARRAY_SIZE(sh7710_devices)); +} +__initcall(sh7710_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh4/Makefile b/arch/sh/kernel/cpu/sh4/Makefile index 3d5cafc..8dbf389 100644 --- a/arch/sh/kernel/cpu/sh4/Makefile +++ b/arch/sh/kernel/cpu/sh4/Makefile
@@ -7,6 +7,16 @@ obj-$(CONFIG_SH_FPU) += fpu.o obj-$(CONFIG_SH_STORE_QUEUES) += sq.o +# CPU subtype setup +obj-$(CONFIG_CPU_SUBTYPE_SH7750) += setup-sh7750.o +obj-$(CONFIG_CPU_SUBTYPE_SH7751) += setup-sh7750.o +obj-$(CONFIG_CPU_SUBTYPE_SH7760) += setup-sh7760.o +obj-$(CONFIG_CPU_SUBTYPE_SH7770) += setup-sh7770.o +obj-$(CONFIG_CPU_SUBTYPE_SH7780) += setup-sh7780.o +obj-$(CONFIG_CPU_SUBTYPE_SH73180) += setup-sh73180.o +obj-$(CONFIG_CPU_SUBTYPE_SH7343) += setup-sh7343.o +obj-$(CONFIG_CPU_SUBTYPE_SH4_202) += setup-sh4-202.o + # Primary on-chip clocks (common) clock-$(CONFIG_CPU_SH4) := clock-sh4.o clock-$(CONFIG_CPU_SUBTYPE_SH73180) := clock-sh73180.o
diff --git a/arch/sh/kernel/cpu/sh4/ex.S b/arch/sh/kernel/cpu/sh4/ex.S index 26a27df..7146893 100644 --- a/arch/sh/kernel/cpu/sh4/ex.S +++ b/arch/sh/kernel/cpu/sh4/ex.S
@@ -72,6 +72,7 @@ .long do_IRQ ! 1110 .long exception_error ! Internal hardware +#ifndef CONFIG_CPU_SUBTYPE_SH7780 .long do_IRQ ! TMU0 tuni0 /* 400 */ .long do_IRQ ! TMU1 tuni1 .long do_IRQ ! TMU2 tuni2 @@ -122,6 +123,13 @@ .long do_IRQ ! 45 dmte5 .long do_IRQ ! 46 dmte6 .long do_IRQ ! 47 dmte7 /* 7E0 */ +#elif defined(CONFIG_CPU_SUBTYPE_SH7343) + .long do_IRQ ! 44 IIC1 ali /* 780 */ + .long do_IRQ ! 45 tacki + .long do_IRQ ! 46 waiti + .long do_IRQ ! 47 dtei /* 7E0 */ + .long do_IRQ ! 48 DMAC dei0 /* 800 */ + .long do_IRQ ! 49 dei1 /* 820 */ #else .long exception_error ! 44 /* 780 */ .long exception_error ! 45 @@ -131,7 +139,8 @@ #if defined(CONFIG_SH_FPU) .long do_fpu_state_restore ! 48 /* 800 */ .long do_fpu_state_restore ! 49 /* 820 */ -#else +#elif !defined(CONFIG_CPU_SUBTYPE_SH7343) && \ + !defined(CONFIG_CPU_SUBTYPE_SH73180) .long exception_error .long exception_error #endif @@ -224,7 +233,7 @@ .long exception_error .long do_IRQ ! ADC adi .long do_IRQ ! CMT cmti /* FA0 */ -#elif defined(CONFIG_CPU_SUBTYPE_SH73180) +#elif defined(CONFIG_CPU_SUBTYPE_SH73180) || defined(CONFIG_CPU_SUBTYPE_SH7343) .long do_IRQ ! 50 0x840 .long do_IRQ ! 51 0x860 .long do_IRQ ! 52 0x880 @@ -379,5 +388,168 @@ .long exception_error ! 141 0x13a0 .long exception_error ! 142 0x13c0 .long exception_error ! 143 0x13e0 +#elif defined(CONFIG_CPU_SUBTYPE_SH7770) + .long do_IRQ ! 50 0x840 + .long do_IRQ ! 51 0x860 + .long do_IRQ ! 52 0x880 + .long do_IRQ ! 53 0x8a0 + .long do_IRQ ! 54 0x8c0 + .long do_IRQ ! 55 0x8e0 + .long do_IRQ ! 56 0x900 + .long do_IRQ ! 57 0x920 + .long do_IRQ ! 58 0x940 + .long do_IRQ ! 59 0x960 + .long do_IRQ ! 60 0x980 + .long do_IRQ ! 61 0x9a0 + .long do_IRQ ! 62 0x9c0 + .long do_IRQ ! 63 0x9e0 + .long do_IRQ ! 64 0xa00 + .long do_IRQ ! 65 0xa20 + .long do_IRQ ! 66 0xa4d + .long do_IRQ ! 67 0xa60 + .long do_IRQ ! 68 0xa80 + .long do_IRQ ! 69 0xaa0 + .long do_IRQ ! 70 0xac0 + .long do_IRQ ! 71 0xae0 + .long do_IRQ ! 72 0xb00 + .long do_IRQ ! 73 0xb20 + .long do_IRQ ! 74 0xb40 + .long do_IRQ ! 75 0xb60 + .long do_IRQ ! 76 0xb80 + .long do_IRQ ! 77 0xba0 + .long do_IRQ ! 78 0xbc0 + .long do_IRQ ! 79 0xbe0 + .long do_IRQ ! 80 0xc00 + .long do_IRQ ! 81 0xc20 + .long do_IRQ ! 82 0xc40 + .long do_IRQ ! 83 0xc60 + .long do_IRQ ! 84 0xc80 + .long do_IRQ ! 85 0xca0 + .long do_IRQ ! 86 0xcc0 + .long do_IRQ ! 87 0xce0 + .long do_IRQ ! 88 0xd00 + .long do_IRQ ! 89 0xd20 + .long do_IRQ ! 90 0xd40 + .long do_IRQ ! 91 0xd60 + .long do_IRQ ! 92 0xd80 + .long do_IRQ ! 93 0xda0 + .long do_IRQ ! 94 0xdc0 + .long do_IRQ ! 95 0xde0 + .long do_IRQ ! 96 0xe00 + .long do_IRQ ! 97 0xe20 + .long do_IRQ ! 98 0xe40 + .long do_IRQ ! 99 0xe60 + .long do_IRQ ! 100 0xe80 + .long do_IRQ ! 101 0xea0 + .long do_IRQ ! 102 0xec0 + .long do_IRQ ! 103 0xee0 + .long do_IRQ ! 104 0xf00 + .long do_IRQ ! 105 0xf20 + .long do_IRQ ! 106 0xf40 + .long do_IRQ ! 107 0xf60 + .long do_IRQ ! 108 0xf80 +#endif +#else + .long exception_error /* 400 */ + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! RTC ati + .long do_IRQ ! pri + .long do_IRQ ! cui + .long exception_error + .long exception_error /* 500 */ + .long exception_error + .long exception_error + .long do_IRQ ! WDT iti /* 560 */ + .long do_IRQ ! TMU-ch0 + .long do_IRQ ! TMU-ch1 + .long do_IRQ ! TMU-ch2 + .long do_IRQ ! ticpi2 /* 5E0 */ + .long do_IRQ ! 32 Hitachi UDI /* 600 */ + .long exception_error + .long do_IRQ ! 34 DMAC dmte0 + .long do_IRQ ! 35 dmte1 + .long do_IRQ ! 36 dmte2 + .long do_IRQ ! 37 dmte3 + .long do_IRQ ! 38 dmae + .long exception_error ! 39 /* 6E0 */ + .long do_IRQ ! 40 SCIF-ch0 eri /* 700 */ + .long do_IRQ ! 41 rxi + .long do_IRQ ! 42 bri + .long do_IRQ ! 43 txi + .long do_IRQ ! 44 DMAC dmte4 /* 780 */ + .long do_IRQ ! 45 dmte5 + .long do_IRQ ! 46 dmte6 + .long do_IRQ ! 47 dmte7 /* 7E0 */ +#if defined(CONFIG_SH_FPU) + .long do_fpu_state_restore ! 48 /* 800 */ + .long do_fpu_state_restore ! 49 /* 820 */ +#else + .long exception_error + .long exception_error +#endif + .long exception_error /* 840 */ + .long exception_error + .long exception_error + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! 56 CMT /* 900 */ + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! 60 HAC + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! PCI serr /* A00 */ + .long do_IRQ ! INTA + .long do_IRQ ! INTB + .long do_IRQ ! INTC + .long do_IRQ ! INTD + .long do_IRQ ! err + .long do_IRQ ! pwd3 + .long do_IRQ ! pwd2 + .long do_IRQ ! pwd1 /* B00 */ + .long do_IRQ ! pwd0 + .long exception_error + .long exception_error + .long do_IRQ ! SCIF-ch1 eri /* B80 */ + .long do_IRQ ! rxi + .long do_IRQ ! bri + .long do_IRQ ! txi + .long do_IRQ ! SIOF /* C00 */ + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! HSPI /* C80 */ + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! MMCIF fatat /* D00 */ + .long do_IRQ ! tran + .long do_IRQ ! err + .long do_IRQ ! frdy + .long do_IRQ ! DMAC dmint8 /* D80 */ + .long do_IRQ ! dmint9 + .long do_IRQ ! dmint10 + .long do_IRQ ! dmint11 + .long do_IRQ ! TMU-ch3 /* E00 */ + .long do_IRQ ! TMU-ch4 + .long do_IRQ ! TMU-ch5 + .long exception_error + .long do_IRQ ! SSI + .long exception_error + .long exception_error + .long exception_error + .long do_IRQ ! FLCTL flste /* F00 */ + .long do_IRQ ! fltend + .long do_IRQ ! fltrq0 + .long do_IRQ ! fltrq1 + .long do_IRQ ! GPIO gpioi0 /* F80 */ + .long do_IRQ ! gpioi1 + .long do_IRQ ! gpioi2 + .long do_IRQ ! gpioi3 #endif
diff --git a/arch/sh/kernel/cpu/sh4/probe.c b/arch/sh/kernel/cpu/sh4/probe.c index 42427b7..c294de1 100644 --- a/arch/sh/kernel/cpu/sh4/probe.c +++ b/arch/sh/kernel/cpu/sh4/probe.c
@@ -3,7 +3,7 @@ * * CPU Subtype Probing for SH-4. * - * Copyright (C) 2001, 2002, 2003, 2004 Paul Mundt + * Copyright (C) 2001 - 2006 Paul Mundt * Copyright (C) 2003 Richard Curnow * * This file is subject to the terms and conditions of the GNU General Public @@ -29,7 +29,7 @@ [9] = (1 << 16) }; - pvr = (ctrl_inl(CCN_PVR) >> 8) & 0xffff; + pvr = (ctrl_inl(CCN_PVR) >> 8) & 0xffffff; prr = (ctrl_inl(CCN_PRR) >> 4) & 0xff; cvr = (ctrl_inl(CCN_CVR)); @@ -38,7 +38,6 @@ */ cpu_data->icache.way_incr = (1 << 13); cpu_data->icache.entry_shift = 5; - cpu_data->icache.entry_mask = 0x1fe0; cpu_data->icache.sets = 256; cpu_data->icache.ways = 1; cpu_data->icache.linesz = L1_CACHE_BYTES; @@ -48,13 +47,29 @@ */ cpu_data->dcache.way_incr = (1 << 14); cpu_data->dcache.entry_shift = 5; - cpu_data->dcache.entry_mask = 0x3fe0; cpu_data->dcache.sets = 512; cpu_data->dcache.ways = 1; cpu_data->dcache.linesz = L1_CACHE_BYTES; - /* Set the FPU flag, virtually all SH-4's have one */ - cpu_data->flags |= CPU_HAS_FPU; + /* + * Setup some generic flags we can probe + * (L2 and DSP detection only work on SH-4A) + */ + if (((pvr >> 16) & 0xff) == 0x10) { + if ((cvr & 0x02000000) == 0) + cpu_data->flags |= CPU_HAS_L2_CACHE; + if ((cvr & 0x10000000) == 0) + cpu_data->flags |= CPU_HAS_DSP; + + cpu_data->flags |= CPU_HAS_LLSC; + } + + /* FPU detection works for everyone */ + if ((cvr & 0x20000000) == 1) + cpu_data->flags |= CPU_HAS_FPU; + + /* Mask off the upper chip ID */ + pvr &= 0xffff; /* * Probe the underlying processor version/revision and @@ -63,56 +78,101 @@ switch (pvr) { case 0x205: cpu_data->type = CPU_SH7750; - cpu_data->flags |= CPU_HAS_P2_FLUSH_BUG | CPU_HAS_PERF_COUNTER; + cpu_data->flags |= CPU_HAS_P2_FLUSH_BUG | CPU_HAS_FPU | + CPU_HAS_PERF_COUNTER | CPU_HAS_PTEA; break; case 0x206: cpu_data->type = CPU_SH7750S; - cpu_data->flags |= CPU_HAS_P2_FLUSH_BUG | CPU_HAS_PERF_COUNTER; + cpu_data->flags |= CPU_HAS_P2_FLUSH_BUG | CPU_HAS_FPU | + CPU_HAS_PERF_COUNTER | CPU_HAS_PTEA; break; case 0x1100: cpu_data->type = CPU_SH7751; + cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PTEA; break; case 0x2000: cpu_data->type = CPU_SH73180; cpu_data->icache.ways = 4; cpu_data->dcache.ways = 4; - cpu_data->flags &= ~CPU_HAS_FPU; + cpu_data->flags |= CPU_HAS_LLSC; + break; + case 0x2001: + case 0x2004: + cpu_data->type = CPU_SH7770; + cpu_data->icache.ways = 4; + cpu_data->dcache.ways = 4; + + cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_LLSC; + break; + case 0x2006: + case 0x200A: + if (prr == 0x61) + cpu_data->type = CPU_SH7781; + else + cpu_data->type = CPU_SH7780; + + cpu_data->icache.ways = 4; + cpu_data->dcache.ways = 4; + + cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PERF_COUNTER | + CPU_HAS_LLSC; + break; + case 0x3000: + case 0x3003: + cpu_data->type = CPU_SH7343; + cpu_data->icache.ways = 4; + cpu_data->dcache.ways = 4; + cpu_data->flags |= CPU_HAS_LLSC; break; case 0x8000: cpu_data->type = CPU_ST40RA; + cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PTEA; break; case 0x8100: cpu_data->type = CPU_ST40GX1; + cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PTEA; break; case 0x700: cpu_data->type = CPU_SH4_501; cpu_data->icache.ways = 2; cpu_data->dcache.ways = 2; - - /* No FPU on the SH4-500 series.. */ - cpu_data->flags &= ~CPU_HAS_FPU; + cpu_data->flags |= CPU_HAS_PTEA; break; case 0x600: cpu_data->type = CPU_SH4_202; cpu_data->icache.ways = 2; cpu_data->dcache.ways = 2; + cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PTEA; break; case 0x500 ... 0x501: switch (prr) { - case 0x10: cpu_data->type = CPU_SH7750R; break; - case 0x11: cpu_data->type = CPU_SH7751R; break; - case 0x50: cpu_data->type = CPU_SH7760; break; + case 0x10: + cpu_data->type = CPU_SH7750R; + break; + case 0x11: + cpu_data->type = CPU_SH7751R; + break; + case 0x50 ... 0x5f: + cpu_data->type = CPU_SH7760; + break; } cpu_data->icache.ways = 2; cpu_data->dcache.ways = 2; + cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PTEA; + break; default: cpu_data->type = CPU_SH_NONE; break; } +#ifdef CONFIG_SH_DIRECT_MAPPED + cpu_data->icache.ways = 1; + cpu_data->dcache.ways = 1; +#endif + /* * On anything that's not a direct-mapped cache, look to the CVR * for I/D-cache specifics. @@ -121,18 +181,56 @@ size = sizes[(cvr >> 20) & 0xf]; cpu_data->icache.way_incr = (size >> 1); cpu_data->icache.sets = (size >> 6); - cpu_data->icache.entry_mask = - (cpu_data->icache.way_incr - (1 << 5)); + } + /* Setup the rest of the I-cache info */ + cpu_data->icache.entry_mask = cpu_data->icache.way_incr - + cpu_data->icache.linesz; + + cpu_data->icache.way_size = cpu_data->icache.sets * + cpu_data->icache.linesz; + + /* And the rest of the D-cache */ if (cpu_data->dcache.ways > 1) { size = sizes[(cvr >> 16) & 0xf]; cpu_data->dcache.way_incr = (size >> 1); cpu_data->dcache.sets = (size >> 6); - cpu_data->dcache.entry_mask = - (cpu_data->dcache.way_incr - (1 << 5)); + } + + cpu_data->dcache.entry_mask = cpu_data->dcache.way_incr - + cpu_data->dcache.linesz; + + cpu_data->dcache.way_size = cpu_data->dcache.sets * + cpu_data->dcache.linesz; + + /* + * Setup the L2 cache desc + * + * SH-4A's have an optional PIPT L2. + */ + if (cpu_data->flags & CPU_HAS_L2_CACHE) { + /* + * Size calculation is much more sensible + * than it is for the L1. + * + * Sizes are 128KB, 258KB, 512KB, and 1MB. + */ + size = (cvr & 0xf) << 17; + + BUG_ON(!size); + + cpu_data->scache.way_incr = (1 << 16); + cpu_data->scache.entry_shift = 5; + cpu_data->scache.ways = 4; + cpu_data->scache.linesz = L1_CACHE_BYTES; + cpu_data->scache.entry_mask = + (cpu_data->scache.way_incr - cpu_data->scache.linesz); + cpu_data->scache.sets = size / + (cpu_data->scache.linesz * cpu_data->scache.ways); + cpu_data->scache.way_size = + (cpu_data->scache.sets * cpu_data->scache.linesz); } return 0; } -
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh4-202.c b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c new file mode 100644 index 0000000..6e4e965 --- /dev/null +++ b/arch/sh/kernel/cpu/sh4/setup-sh4-202.c
@@ -0,0 +1,43 @@ +/* + * SH4-202 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xffe80000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 40, 41, 43, 42 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh4202_devices[] __initdata = { + &sci_device, +}; + +static int __init sh4202_devices_setup(void) +{ + return platform_add_devices(sh4202_devices, + ARRAY_SIZE(sh4202_devices)); +} +__initcall(sh4202_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh73180.c b/arch/sh/kernel/cpu/sh4/setup-sh73180.c new file mode 100644 index 0000000..cc9ea1e --- /dev/null +++ b/arch/sh/kernel/cpu/sh4/setup-sh73180.c
@@ -0,0 +1,43 @@ +/* + * SH73180 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xffe80000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 80, 81, 83, 82 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh73180_devices[] __initdata = { + &sci_device, +}; + +static int __init sh73180_devices_setup(void) +{ + return platform_add_devices(sh73180_devices, + ARRAY_SIZE(sh73180_devices)); +} +__initcall(sh73180_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7343.c b/arch/sh/kernel/cpu/sh4/setup-sh7343.c new file mode 100644 index 0000000..91d61cf --- /dev/null +++ b/arch/sh/kernel/cpu/sh4/setup-sh7343.c
@@ -0,0 +1,43 @@ +/* + * SH7343 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xffe00000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 80, 81, 83, 82 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7343_devices[] __initdata = { + &sci_device, +}; + +static int __init sh7343_devices_setup(void) +{ + return platform_add_devices(sh7343_devices, + ARRAY_SIZE(sh7343_devices)); +} +__initcall(sh7343_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c new file mode 100644 index 0000000..50812d5 --- /dev/null +++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -0,0 +1,48 @@ +/* + * SH7750/SH7751 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xffe00000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCI, + .irqs = { 23, 24, 25, 0 }, + }, { + .mapbase = 0xffe80000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 40, 41, 43, 42 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7750_devices[] __initdata = { + &sci_device, +}; + +static int __init sh7750_devices_setup(void) +{ + return platform_add_devices(sh7750_devices, + ARRAY_SIZE(sh7750_devices)); +} +__initcall(sh7750_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7760.c b/arch/sh/kernel/cpu/sh4/setup-sh7760.c new file mode 100644 index 0000000..97f1c9a --- /dev/null +++ b/arch/sh/kernel/cpu/sh4/setup-sh7760.c
@@ -0,0 +1,53 @@ +/* + * SH7760 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xfe600000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 52, 53, 55, 54 }, + }, { + .mapbase = 0xfe610000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 72, 73, 75, 74 }, + }, { + .mapbase = 0xfe620000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 76, 77, 79, 78 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7760_devices[] __initdata = { + &sci_device, +}; + +static int __init sh7760_devices_setup(void) +{ + return platform_add_devices(sh7760_devices, + ARRAY_SIZE(sh7760_devices)); +} +__initcall(sh7760_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7770.c b/arch/sh/kernel/cpu/sh4/setup-sh7770.c new file mode 100644 index 0000000..6a04cc5 --- /dev/null +++ b/arch/sh/kernel/cpu/sh4/setup-sh7770.c
@@ -0,0 +1,53 @@ +/* + * SH7770 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xff923000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 61, 61, 61, 61 }, + }, { + .mapbase = 0xff924000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 62, 62, 62, 62 }, + }, { + .mapbase = 0xff925000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 63, 63, 63, 63 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7770_devices[] __initdata = { + &sci_device, +}; + +static int __init sh7770_devices_setup(void) +{ + return platform_add_devices(sh7770_devices, + ARRAY_SIZE(sh7770_devices)); +} +__initcall(sh7770_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7780.c b/arch/sh/kernel/cpu/sh4/setup-sh7780.c new file mode 100644 index 0000000..72493f2 --- /dev/null +++ b/arch/sh/kernel/cpu/sh4/setup-sh7780.c
@@ -0,0 +1,79 @@ +/* + * SH7780 Setup + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/platform_device.h> +#include <linux/init.h> +#include <linux/serial.h> +#include <asm/sci.h> + +static struct resource rtc_resources[] = { + [0] = { + .start = 0xffe80000, + .end = 0xffe80000 + 0x58 - 1, + .flags = IORESOURCE_IO, + }, + [1] = { + /* Period IRQ */ + .start = 21, + .flags = IORESOURCE_IRQ, + }, + [2] = { + /* Carry IRQ */ + .start = 22, + .flags = IORESOURCE_IRQ, + }, + [3] = { + /* Alarm IRQ */ + .start = 23, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device rtc_device = { + .name = "sh-rtc", + .id = -1, + .num_resources = ARRAY_SIZE(rtc_resources), + .resource = rtc_resources, +}; + +static struct plat_sci_port sci_platform_data[] = { + { + .mapbase = 0xffe00000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 40, 41, 43, 42 }, + }, { + .mapbase = 0xffe10000, + .flags = UPF_BOOT_AUTOCONF, + .type = PORT_SCIF, + .irqs = { 76, 77, 79, 78 }, + }, { + .flags = 0, + } +}; + +static struct platform_device sci_device = { + .name = "sh-sci", + .id = -1, + .dev = { + .platform_data = sci_platform_data, + }, +}; + +static struct platform_device *sh7780_devices[] __initdata = { + &rtc_device, + &sci_device, +}; + +static int __init sh7780_devices_setup(void) +{ + return platform_add_devices(sh7780_devices, + ARRAY_SIZE(sh7780_devices)); +} +__initcall(sh7780_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c index b09805f..7bcc73f 100644 --- a/arch/sh/kernel/cpu/sh4/sq.c +++ b/arch/sh/kernel/cpu/sh4/sq.c
@@ -1,49 +1,52 @@ /* - * arch/sh/kernel/cpu/sq.c + * arch/sh/kernel/cpu/sh4/sq.c * * General management API for SH-4 integrated Store Queues * - * Copyright (C) 2001, 2002, 2003, 2004 Paul Mundt + * Copyright (C) 2001 - 2006 Paul Mundt * Copyright (C) 2001, 2002 M. R. Brown * - * Some of this code has been adopted directly from the old arch/sh/mm/sq.c - * hack that was part of the LinuxDC project. For all intents and purposes, - * this is a completely new interface that really doesn't have much in common - * with the old zone-based approach at all. In fact, it's only listed here for - * general completeness. - * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #include <linux/init.h> +#include <linux/cpu.h> +#include <linux/bitmap.h> +#include <linux/sysdev.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> -#include <linux/list.h> -#include <linux/proc_fs.h> -#include <linux/miscdevice.h> #include <linux/vmalloc.h> - +#include <linux/mm.h> #include <asm/io.h> #include <asm/page.h> -#include <asm/mmu_context.h> +#include <asm/cacheflush.h> #include <asm/cpu/sq.h> -static LIST_HEAD(sq_mapping_list); -static DEFINE_SPINLOCK(sq_mapping_lock); +struct sq_mapping; -/** - * sq_flush - Flush (prefetch) the store queue cache - * @addr: the store queue address to flush - * - * Executes a prefetch instruction on the specified store queue cache, - * so that the cached data is written to physical memory. - */ -inline void sq_flush(void *addr) -{ - __asm__ __volatile__ ("pref @%0" : : "r" (addr) : "memory"); -} +struct sq_mapping { + const char *name; + + unsigned long sq_addr; + unsigned long addr; + unsigned int size; + + struct sq_mapping *next; +}; + +static struct sq_mapping *sq_mapping_list; +static DEFINE_SPINLOCK(sq_mapping_lock); +static kmem_cache_t *sq_cache; +static unsigned long *sq_bitmap; + +#define store_queue_barrier() \ +do { \ + (void)ctrl_inl(P4SEG_STORE_QUE); \ + ctrl_outl(0, P4SEG_STORE_QUE + 0); \ + ctrl_outl(0, P4SEG_STORE_QUE + 8); \ +} while (0); /** * sq_flush_range - Flush (prefetch) a specific SQ range @@ -56,152 +59,73 @@ void sq_flush_range(unsigned long start, unsigned int len) { volatile unsigned long *sq = (unsigned long *)start; - unsigned long dummy; /* Flush the queues */ for (len >>= 5; len--; sq += 8) - sq_flush((void *)sq); + prefetchw((void *)sq); /* Wait for completion */ - dummy = ctrl_inl(P4SEG_STORE_QUE); - - ctrl_outl(0, P4SEG_STORE_QUE + 0); - ctrl_outl(0, P4SEG_STORE_QUE + 8); + store_queue_barrier(); } -static struct sq_mapping *__sq_alloc_mapping(unsigned long virt, unsigned long phys, unsigned long size, const char *name) +static inline void sq_mapping_list_add(struct sq_mapping *map) { - struct sq_mapping *map; + struct sq_mapping **p, *tmp; - if (virt + size > SQ_ADDRMAX) - return ERR_PTR(-ENOSPC); + spin_lock_irq(&sq_mapping_lock); - map = kmalloc(sizeof(struct sq_mapping), GFP_KERNEL); - if (!map) - return ERR_PTR(-ENOMEM); + p = &sq_mapping_list; + while ((tmp = *p) != NULL) + p = &tmp->next; - INIT_LIST_HEAD(&map->list); + map->next = tmp; + *p = map; - map->sq_addr = virt; - map->addr = phys; - map->size = size + 1; - map->name = name; - - list_add(&map->list, &sq_mapping_list); - - return map; + spin_unlock_irq(&sq_mapping_lock); } -static unsigned long __sq_get_next_addr(void) +static inline void sq_mapping_list_del(struct sq_mapping *map) { - if (!list_empty(&sq_mapping_list)) { - struct list_head *pos, *tmp; + struct sq_mapping **p, *tmp; - /* - * Read one off the list head, as it will have the highest - * mapped allocation. Set the next one up right above it. - * - * This is somewhat sub-optimal, as we don't look at - * gaps between allocations or anything lower then the - * highest-level allocation. - * - * However, in the interest of performance and the general - * lack of desire to do constant list rebalancing, we don't - * worry about it. - */ - list_for_each_safe(pos, tmp, &sq_mapping_list) { - struct sq_mapping *entry; + spin_lock_irq(&sq_mapping_lock); - entry = list_entry(pos, typeof(*entry), list); - - return entry->sq_addr + entry->size; + for (p = &sq_mapping_list; (tmp = *p); p = &tmp->next) + if (tmp == map) { + *p = tmp->next; + break; } - } - return P4SEG_STORE_QUE; + spin_unlock_irq(&sq_mapping_lock); } -/** - * __sq_remap - Perform a translation from the SQ to a phys addr - * @map: sq mapping containing phys and store queue addresses. - * - * Maps the store queue address specified in the mapping to the physical - * address specified in the mapping. - */ -static struct sq_mapping *__sq_remap(struct sq_mapping *map) +static int __sq_remap(struct sq_mapping *map, unsigned long flags) { - unsigned long flags, pteh, ptel; +#if defined(CONFIG_MMU) struct vm_struct *vma; - pgprot_t pgprot; + vma = __get_vm_area(map->size, VM_ALLOC, map->sq_addr, SQ_ADDRMAX); + if (!vma) + return -ENOMEM; + + vma->phys_addr = map->addr; + + if (remap_area_pages((unsigned long)vma->addr, vma->phys_addr, + map->size, flags)) { + vunmap(vma->addr); + return -EAGAIN; + } +#else /* * Without an MMU (or with it turned off), this is much more * straightforward, as we can just load up each queue's QACR with * the physical address appropriately masked. */ - ctrl_outl(((map->addr >> 26) << 2) & 0x1c, SQ_QACR0); ctrl_outl(((map->addr >> 26) << 2) & 0x1c, SQ_QACR1); +#endif -#ifdef CONFIG_MMU - /* - * With an MMU on the other hand, things are slightly more involved. - * Namely, we have to have a direct mapping between the SQ addr and - * the associated physical address in the UTLB by way of setting up - * a virt<->phys translation by hand. We do this by simply specifying - * the SQ addr in UTLB.VPN and the associated physical address in - * UTLB.PPN. - * - * Notably, even though this is a special case translation, and some - * of the configuration bits are meaningless, we're still required - * to have a valid ASID context in PTEH. - * - * We could also probably get by without explicitly setting PTEA, but - * we do it here just for good measure. - */ - spin_lock_irqsave(&sq_mapping_lock, flags); - - pteh = map->sq_addr; - ctrl_outl((pteh & MMU_VPN_MASK) | get_asid(), MMU_PTEH); - - ptel = map->addr & PAGE_MASK; - ctrl_outl(((ptel >> 28) & 0xe) | (ptel & 0x1), MMU_PTEA); - - pgprot = pgprot_noncached(PAGE_KERNEL); - - ptel &= _PAGE_FLAGS_HARDWARE_MASK; - ptel |= pgprot_val(pgprot); - ctrl_outl(ptel, MMU_PTEL); - - __asm__ __volatile__ ("ldtlb" : : : "memory"); - - spin_unlock_irqrestore(&sq_mapping_lock, flags); - - /* - * Next, we need to map ourselves in the kernel page table, so that - * future accesses after a TLB flush will be handled when we take a - * page fault. - * - * Theoretically we could just do this directly and not worry about - * setting up the translation by hand ahead of time, but for the - * cases where we want a one-shot SQ mapping followed by a quick - * writeout before we hit the TLB flush, we do it anyways. This way - * we at least save ourselves the initial page fault overhead. - */ - vma = __get_vm_area(map->size, VM_ALLOC, map->sq_addr, SQ_ADDRMAX); - if (!vma) - return ERR_PTR(-ENOMEM); - - vma->phys_addr = map->addr; - - if (remap_area_pages((unsigned long)vma->addr, vma->phys_addr, - map->size, pgprot_val(pgprot))) { - vunmap(vma->addr); - return NULL; - } -#endif /* CONFIG_MMU */ - - return map; + return 0; } /** @@ -209,42 +133,65 @@ * @phys: Physical address of mapping. * @size: Length of mapping. * @name: User invoking mapping. + * @flags: Protection flags. * * Remaps the physical address @phys through the next available store queue * address of @size length. @name is logged at boot time as well as through - * the procfs interface. - * - * A pre-allocated and filled sq_mapping pointer is returned, and must be - * cleaned up with a call to sq_unmap() when the user is done with the - * mapping. + * the sysfs interface. */ -struct sq_mapping *sq_remap(unsigned long phys, unsigned int size, const char *name) +unsigned long sq_remap(unsigned long phys, unsigned int size, + const char *name, unsigned long flags) { struct sq_mapping *map; - unsigned long virt, end; + unsigned long end; unsigned int psz; + int ret, page; /* Don't allow wraparound or zero size */ end = phys + size - 1; - if (!size || end < phys) - return NULL; + if (unlikely(!size || end < phys)) + return -EINVAL; /* Don't allow anyone to remap normal memory.. */ - if (phys < virt_to_phys(high_memory)) - return NULL; + if (unlikely(phys < virt_to_phys(high_memory))) + return -EINVAL; phys &= PAGE_MASK; + size = PAGE_ALIGN(end + 1) - phys; - size = PAGE_ALIGN(end + 1) - phys; - virt = __sq_get_next_addr(); - psz = (size + (PAGE_SIZE - 1)) / PAGE_SIZE; - map = __sq_alloc_mapping(virt, phys, size, name); + map = kmem_cache_alloc(sq_cache, GFP_KERNEL); + if (unlikely(!map)) + return -ENOMEM; - printk("sqremap: %15s [%4d page%s] va 0x%08lx pa 0x%08lx\n", - map->name ? map->name : "???", - psz, psz == 1 ? " " : "s", - map->sq_addr, map->addr); + map->addr = phys; + map->size = size; + map->name = name; - return __sq_remap(map); + page = bitmap_find_free_region(sq_bitmap, 0x04000000, + get_order(map->size)); + if (unlikely(page < 0)) { + ret = -ENOSPC; + goto out; + } + + map->sq_addr = P4SEG_STORE_QUE + (page << PAGE_SHIFT); + + ret = __sq_remap(map, flags); + if (unlikely(ret != 0)) + goto out; + + psz = (size + (PAGE_SIZE - 1)) >> PAGE_SHIFT; + pr_info("sqremap: %15s [%4d page%s] va 0x%08lx pa 0x%08lx\n", + likely(map->name) ? map->name : "???", + psz, psz == 1 ? " " : "s", + map->sq_addr, map->addr); + + sq_mapping_list_add(map); + + return map->sq_addr; + +out: + kmem_cache_free(sq_cache, map); + return ret; } /** @@ -255,188 +202,198 @@ * sq_remap(). Also frees up the pte that was previously inserted into * the kernel page table and discards the UTLB translation. */ -void sq_unmap(struct sq_mapping *map) +void sq_unmap(unsigned long vaddr) { - if (map->sq_addr > (unsigned long)high_memory) - vfree((void *)(map->sq_addr & PAGE_MASK)); + struct sq_mapping **p, *map; + struct vm_struct *vma; + int page; - list_del(&map->list); - kfree(map); -} + for (p = &sq_mapping_list; (map = *p); p = &map->next) + if (map->sq_addr == vaddr) + break; -/** - * sq_clear - Clear a store queue range - * @addr: Address to start clearing from. - * @len: Length to clear. - * - * A quick zero-fill implementation for clearing out memory that has been - * remapped through the store queues. - */ -void sq_clear(unsigned long addr, unsigned int len) -{ - int i; - - /* Clear out both queues linearly */ - for (i = 0; i < 8; i++) { - ctrl_outl(0, addr + i + 0); - ctrl_outl(0, addr + i + 8); + if (unlikely(!map)) { + printk("%s: bad store queue address 0x%08lx\n", + __FUNCTION__, vaddr); + return; } - sq_flush_range(addr, len); -} + page = (map->sq_addr - P4SEG_STORE_QUE) >> PAGE_SHIFT; + bitmap_release_region(sq_bitmap, page, get_order(map->size)); -/** - * sq_vma_unmap - Unmap a VMA range - * @area: VMA containing range. - * @addr: Start of range. - * @len: Length of range. - * - * Searches the sq_mapping_list for a mapping matching the sq addr @addr, - * and subsequently frees up the entry. Further cleanup is done by generic - * code. - */ -static void sq_vma_unmap(struct vm_area_struct *area, - unsigned long addr, size_t len) -{ - struct list_head *pos, *tmp; - - list_for_each_safe(pos, tmp, &sq_mapping_list) { - struct sq_mapping *entry; - - entry = list_entry(pos, typeof(*entry), list); - - if (entry->sq_addr == addr) { - /* - * We could probably get away without doing the tlb flush - * here, as generic code should take care of most of this - * when unmapping the rest of the VMA range for us. Leave - * it in for added sanity for the time being.. - */ - __flush_tlb_page(get_asid(), entry->sq_addr & PAGE_MASK); - - list_del(&entry->list); - kfree(entry); - - return; - } +#ifdef CONFIG_MMU + vma = remove_vm_area((void *)(map->sq_addr & PAGE_MASK)); + if (!vma) { + printk(KERN_ERR "%s: bad address 0x%08lx\n", + __FUNCTION__, map->sq_addr); + return; } +#endif + + sq_mapping_list_del(map); + + kmem_cache_free(sq_cache, map); } -/** - * sq_vma_sync - Sync a VMA range - * @area: VMA containing range. - * @start: Start of range. - * @len: Length of range. - * @flags: Additional flags. +/* + * Needlessly complex sysfs interface. Unfortunately it doesn't seem like + * there is any other easy way to add things on a per-cpu basis without + * putting the directory entries somewhere stupid and having to create + * links in sysfs by hand back in to the per-cpu directories. * - * Synchronizes an sq mapped range by flushing the store queue cache for - * the duration of the mapping. - * - * Used internally for user mappings, which must use msync() to prefetch - * the store queue cache. + * Some day we may want to have an additional abstraction per store + * queue, but considering the kobject hell we already have to deal with, + * it's simply not worth the trouble. */ -static int sq_vma_sync(struct vm_area_struct *area, - unsigned long start, size_t len, unsigned int flags) -{ - sq_flush_range(start, len); +static struct kobject *sq_kobject[NR_CPUS]; - return 0; -} - -static struct vm_operations_struct sq_vma_ops = { - .unmap = sq_vma_unmap, - .sync = sq_vma_sync, +struct sq_sysfs_attr { + struct attribute attr; + ssize_t (*show)(char *buf); + ssize_t (*store)(const char *buf, size_t count); }; -/** - * sq_mmap - mmap() for /dev/cpu/sq - * @file: unused. - * @vma: VMA to remap. - * - * Remap the specified vma @vma through the store queues, and setup associated - * information for the new mapping. Also build up the page tables for the new - * area. - */ -static int sq_mmap(struct file *file, struct vm_area_struct *vma) +#define to_sq_sysfs_attr(attr) container_of(attr, struct sq_sysfs_attr, attr) + +static ssize_t sq_sysfs_show(struct kobject *kobj, struct attribute *attr, + char *buf) { - unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; - unsigned long size = vma->vm_end - vma->vm_start; - struct sq_mapping *map; + struct sq_sysfs_attr *sattr = to_sq_sysfs_attr(attr); - /* - * We're not interested in any arbitrary virtual address that has - * been stuck in the VMA, as we already know what addresses we - * want. Save off the size, and reposition the VMA to begin at - * the next available sq address. - */ - vma->vm_start = __sq_get_next_addr(); - vma->vm_end = vma->vm_start + size; + if (likely(sattr->show)) + return sattr->show(buf); - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - - vma->vm_flags |= VM_IO | VM_RESERVED; - - map = __sq_alloc_mapping(vma->vm_start, offset, size, "Userspace"); - - if (io_remap_pfn_range(vma, map->sq_addr, map->addr >> PAGE_SHIFT, - size, vma->vm_page_prot)) - return -EAGAIN; - - vma->vm_ops = &sq_vma_ops; - - return 0; + return -EIO; } -#ifdef CONFIG_PROC_FS -static int sq_mapping_read_proc(char *buf, char **start, off_t off, - int len, int *eof, void *data) +static ssize_t sq_sysfs_store(struct kobject *kobj, struct attribute *attr, + const char *buf, size_t count) { - struct list_head *pos; + struct sq_sysfs_attr *sattr = to_sq_sysfs_attr(attr); + + if (likely(sattr->store)) + return sattr->store(buf, count); + + return -EIO; +} + +static ssize_t mapping_show(char *buf) +{ + struct sq_mapping **list, *entry; char *p = buf; - list_for_each_prev(pos, &sq_mapping_list) { - struct sq_mapping *entry; - - entry = list_entry(pos, typeof(*entry), list); - - p += sprintf(p, "%08lx-%08lx [%08lx]: %s\n", entry->sq_addr, - entry->sq_addr + entry->size - 1, entry->addr, - entry->name); - } + for (list = &sq_mapping_list; (entry = *list); list = &entry->next) + p += sprintf(p, "%08lx-%08lx [%08lx]: %s\n", + entry->sq_addr, entry->sq_addr + entry->size, + entry->addr, entry->name); return p - buf; } -#endif -static struct file_operations sq_fops = { - .owner = THIS_MODULE, - .mmap = sq_mmap, +static ssize_t mapping_store(const char *buf, size_t count) +{ + unsigned long base = 0, len = 0; + + sscanf(buf, "%lx %lx", &base, &len); + if (!base) + return -EIO; + + if (likely(len)) { + int ret = sq_remap(base, len, "Userspace", + pgprot_val(PAGE_SHARED)); + if (ret < 0) + return ret; + } else + sq_unmap(base); + + return count; +} + +static struct sq_sysfs_attr mapping_attr = + __ATTR(mapping, 0644, mapping_show, mapping_store); + +static struct attribute *sq_sysfs_attrs[] = { + &mapping_attr.attr, + NULL, }; -static struct miscdevice sq_dev = { - .minor = STORE_QUEUE_MINOR, - .name = "sq", - .fops = &sq_fops, +static struct sysfs_ops sq_sysfs_ops = { + .show = sq_sysfs_show, + .store = sq_sysfs_store, +}; + +static struct kobj_type ktype_percpu_entry = { + .sysfs_ops = &sq_sysfs_ops, + .default_attrs = sq_sysfs_attrs, +}; + +static int __devinit sq_sysdev_add(struct sys_device *sysdev) +{ + unsigned int cpu = sysdev->id; + struct kobject *kobj; + + sq_kobject[cpu] = kzalloc(sizeof(struct kobject), GFP_KERNEL); + if (unlikely(!sq_kobject[cpu])) + return -ENOMEM; + + kobj = sq_kobject[cpu]; + kobj->parent = &sysdev->kobj; + kobject_set_name(kobj, "%s", "sq"); + kobj->ktype = &ktype_percpu_entry; + + return kobject_register(kobj); +} + +static int __devexit sq_sysdev_remove(struct sys_device *sysdev) +{ + unsigned int cpu = sysdev->id; + struct kobject *kobj = sq_kobject[cpu]; + + kobject_unregister(kobj); + return 0; +} + +static struct sysdev_driver sq_sysdev_driver = { + .add = sq_sysdev_add, + .remove = __devexit_p(sq_sysdev_remove), }; static int __init sq_api_init(void) { - int ret; + unsigned int nr_pages = 0x04000000 >> PAGE_SHIFT; + unsigned int size = (nr_pages + (BITS_PER_LONG - 1)) / BITS_PER_LONG; + int ret = -ENOMEM; + printk(KERN_NOTICE "sq: Registering store queue API.\n"); - create_proc_read_entry("sq_mapping", 0, 0, sq_mapping_read_proc, 0); + sq_cache = kmem_cache_create("store_queue_cache", + sizeof(struct sq_mapping), 0, 0, + NULL, NULL); + if (unlikely(!sq_cache)) + return ret; - ret = misc_register(&sq_dev); - if (ret) - remove_proc_entry("sq_mapping", NULL); + sq_bitmap = kzalloc(size, GFP_KERNEL); + if (unlikely(!sq_bitmap)) + goto out; + + ret = sysdev_driver_register(&cpu_sysdev_class, &sq_sysdev_driver); + if (unlikely(ret != 0)) + goto out; + + return 0; + +out: + kfree(sq_bitmap); + kmem_cache_destroy(sq_cache); return ret; } static void __exit sq_api_exit(void) { - misc_deregister(&sq_dev); - remove_proc_entry("sq_mapping", NULL); + sysdev_driver_unregister(&cpu_sysdev_class, &sq_sysdev_driver); + kfree(sq_bitmap); + kmem_cache_destroy(sq_cache); } module_init(sq_api_init); @@ -445,11 +402,7 @@ MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>, M. R. Brown <mrbrown@0xd6.org>"); MODULE_DESCRIPTION("Simple API for SH-4 integrated Store Queues"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_MISCDEV(STORE_QUEUE_MINOR); EXPORT_SYMBOL(sq_remap); EXPORT_SYMBOL(sq_unmap); -EXPORT_SYMBOL(sq_clear); -EXPORT_SYMBOL(sq_flush); EXPORT_SYMBOL(sq_flush_range); -
diff --git a/arch/sh/kernel/early_printk.c b/arch/sh/kernel/early_printk.c index 1378db3..a000227 100644 --- a/arch/sh/kernel/early_printk.c +++ b/arch/sh/kernel/early_printk.c
@@ -3,7 +3,7 @@ * * Copyright (C) 1999, 2000 Niibe Yutaka * Copyright (C) 2002 M. R. Brown - * Copyright (C) 2004 Paul Mundt + * Copyright (C) 2004 - 2006 Paul Mundt * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -49,7 +49,7 @@ return 0; } -static struct console early_console = { +static struct console bios_console = { .name = "bios", .write = sh_console_write, .setup = sh_console_setup, @@ -59,34 +59,43 @@ #endif #ifdef CONFIG_EARLY_SCIF_CONSOLE +#include <linux/serial_core.h> +#include "../../../drivers/serial/sh-sci.h" + +#ifdef CONFIG_CPU_SH4 #define SCIF_REG 0xffe80000 +#elif defined(CONFIG_CPU_SUBTYPE_SH72060) +#define SCIF_REG 0xfffe9800 +#else +#error "Undefined SCIF for this subtype" +#endif + +static struct uart_port scif_port = { + .mapbase = SCIF_REG, + .membase = (char __iomem *)SCIF_REG, +}; static void scif_sercon_putc(int c) { - while (!(ctrl_inw(SCIF_REG + 0x10) & 0x20)) ; + while (((sci_in(&scif_port, SCFDR) & 0x1f00 >> 8) == 16)) + ; - ctrl_outb(c, SCIF_REG + 12); - ctrl_outw((ctrl_inw(SCIF_REG + 0x10) & 0x9f), SCIF_REG + 0x10); + sci_out(&scif_port, SCxTDR, c); + sci_in(&scif_port, SCxSR); + sci_out(&scif_port, SCxSR, 0xf3 & ~(0x20 | 0x40)); + + while ((sci_in(&scif_port, SCxSR) & 0x40) == 0); + ; if (c == '\n') scif_sercon_putc('\r'); } -static void scif_sercon_flush(void) -{ - ctrl_outw((ctrl_inw(SCIF_REG + 0x10) & 0xbf), SCIF_REG + 0x10); - - while (!(ctrl_inw(SCIF_REG + 0x10) & 0x40)) ; - - ctrl_outw((ctrl_inw(SCIF_REG + 0x10) & 0xbf), SCIF_REG + 0x10); -} - -static void scif_sercon_write(struct console *con, const char *s, unsigned count) +static void scif_sercon_write(struct console *con, const char *s, + unsigned count) { while (count-- > 0) scif_sercon_putc(*s++); - - scif_sercon_flush(); } static int __init scif_sercon_setup(struct console *con, char *options) @@ -96,7 +105,7 @@ return 0; } -static struct console early_console = { +static struct console scif_console = { .name = "sercon", .write = scif_sercon_write, .setup = scif_sercon_setup, @@ -104,7 +113,7 @@ .index = -1, }; -void scif_sercon_init(int baud) +static void scif_sercon_init(int baud) { ctrl_outw(0, SCIF_REG + 8); ctrl_outw(0, SCIF_REG); @@ -122,16 +131,61 @@ } #endif -void __init enable_early_printk(void) -{ -#ifdef CONFIG_EARLY_SCIF_CONSOLE - scif_sercon_init(115200); +/* + * Setup a default console, if more than one is compiled in, rely on the + * earlyprintk= parsing to give priority. + */ +static struct console *early_console = +#ifdef CONFIG_SH_STANDARD_BIOS + &bios_console +#elif defined(CONFIG_EARLY_SCIF_CONSOLE) + &scif_console +#else + NULL #endif - register_console(&early_console); -} + ; -void disable_early_printk(void) +static int __initdata keep_early; + +int __init setup_early_printk(char *opt) { - unregister_console(&early_console); -} + char *space; + char buf[256]; + strlcpy(buf, opt, sizeof(buf)); + space = strchr(buf, ' '); + if (space) + *space = 0; + + if (strstr(buf, "keep")) + keep_early = 1; + +#ifdef CONFIG_SH_STANDARD_BIOS + if (!strncmp(buf, "bios", 4)) + early_console = &bios_console; +#endif +#if defined(CONFIG_EARLY_SCIF_CONSOLE) + if (!strncmp(buf, "serial", 6)) { + early_console = &scif_console; + +#ifdef CONFIG_CPU_SH4 + scif_sercon_init(115200); +#endif + } +#endif + + if (likely(early_console)) + register_console(early_console); + + return 1; +} +__setup("earlyprintk=", setup_early_printk); + +void __init disable_early_printk(void) +{ + if (!keep_early) { + printk("disabling early console\n"); + unregister_console(early_console); + } else + printk("keeping early console\n"); +}
diff --git a/arch/sh/kernel/entry.S b/arch/sh/kernel/entry.S index 7dfd2ba..fe82218 100644 --- a/arch/sh/kernel/entry.S +++ b/arch/sh/kernel/entry.S
@@ -18,24 +18,6 @@ #include <asm/cpu/mmu_context.h> #include <asm/unistd.h> -#if !defined(CONFIG_NFSD) && !defined(CONFIG_NFSD_MODULE) -#define sys_nfsservctl sys_ni_syscall -#endif - -#if !defined(CONFIG_MMU) -#define sys_madvise sys_ni_syscall -#define sys_readahead sys_ni_syscall -#define sys_mprotect sys_ni_syscall -#define sys_msync sys_ni_syscall -#define sys_mlock sys_ni_syscall -#define sys_munlock sys_ni_syscall -#define sys_mlockall sys_ni_syscall -#define sys_munlockall sys_ni_syscall -#define sys_mremap sys_ni_syscall -#define sys_mincore sys_ni_syscall -#define sys_remap_file_pages sys_ni_syscall -#endif - ! NOTE: ! GNU as (as of 2.9.1) changes bf/s into bt/s and bra, when the address ! to be jumped is too far, but it causes illegal slot exception. @@ -326,7 +308,7 @@ .align 2 ret_from_exception: preempt_stop() -ret_from_irq: +ENTRY(ret_from_irq) ! mov #OFF_SR, r0 mov.l @(r0,r15), r0 ! get status register @@ -389,11 +371,12 @@ ! r8: current_thread_info ! t: result of "tst #_TIF_NEED_RESCHED, r0" bf/s work_resched - tst #_TIF_SIGPENDING, r0 + tst #(_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK), r0 work_notifysig: bt/s restore_all mov r15, r4 - mov #0, r5 + mov r12, r5 ! set arg1(save_r0) + mov r0, r6 mov.l 2f, r1 mova restore_all, r0 jmp @r1 @@ -431,7 +414,7 @@ .align 2 1: .long schedule -2: .long do_signal +2: .long do_notify_resume .align 2 syscall_exit_work: @@ -552,6 +535,7 @@ mov.l @r9, r8 jsr @r8 ! jump to specific syscall handler nop + mov.l @(OFF_R0,r15), r12 ! save r0 mov.l r0, @(OFF_R0,r15) ! save the return value ! syscall_exit: @@ -644,7 +628,7 @@ ! #if defined(CONFIG_KGDB_NMI) ! Clear in_nmi - mov.l 4f, k0 + mov.l 6f, k0 mov #0, k1 mov.b k1, @k0 #endif @@ -722,7 +706,7 @@ ! ! .align 2 -handle_exception: +ENTRY(handle_exception) ! Using k0, k1 for scratch registers (r0_bank1, r1_bank), ! save all registers onto stack. ! @@ -732,8 +716,8 @@ bt/s 1f ! It's a kernel to kernel transition. mov r15, k0 ! save original stack to k0 /* User space to kernel */ - mov #0x20, k1 - shll8 k1 ! k1 := 8192 (== THREAD_SIZE) + mov #(THREAD_SIZE >> 8), k1 + shll8 k1 ! k1 := THREAD_SIZE add current, k1 mov k1, r15 ! change to kernel stack ! @@ -838,300 +822,3 @@ rts nop - .data -ENTRY(sys_call_table) - .long sys_ni_syscall /* 0 - old "setup()" system call*/ - .long sys_exit - .long sys_fork - .long sys_read - .long sys_write - .long sys_open /* 5 */ - .long sys_close - .long sys_waitpid - .long sys_creat - .long sys_link - .long sys_unlink /* 10 */ - .long sys_execve - .long sys_chdir - .long sys_time - .long sys_mknod - .long sys_chmod /* 15 */ - .long sys_lchown16 - .long sys_ni_syscall /* old break syscall holder */ - .long sys_stat - .long sys_lseek - .long sys_getpid /* 20 */ - .long sys_mount - .long sys_oldumount - .long sys_setuid16 - .long sys_getuid16 - .long sys_stime /* 25 */ - .long sys_ptrace - .long sys_alarm - .long sys_fstat - .long sys_pause - .long sys_utime /* 30 */ - .long sys_ni_syscall /* old stty syscall holder */ - .long sys_ni_syscall /* old gtty syscall holder */ - .long sys_access - .long sys_nice - .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ - .long sys_sync - .long sys_kill - .long sys_rename - .long sys_mkdir - .long sys_rmdir /* 40 */ - .long sys_dup - .long sys_pipe - .long sys_times - .long sys_ni_syscall /* old prof syscall holder */ - .long sys_brk /* 45 */ - .long sys_setgid16 - .long sys_getgid16 - .long sys_signal - .long sys_geteuid16 - .long sys_getegid16 /* 50 */ - .long sys_acct - .long sys_umount /* recycled never used phys() */ - .long sys_ni_syscall /* old lock syscall holder */ - .long sys_ioctl - .long sys_fcntl /* 55 */ - .long sys_ni_syscall /* old mpx syscall holder */ - .long sys_setpgid - .long sys_ni_syscall /* old ulimit syscall holder */ - .long sys_ni_syscall /* sys_olduname */ - .long sys_umask /* 60 */ - .long sys_chroot - .long sys_ustat - .long sys_dup2 - .long sys_getppid - .long sys_getpgrp /* 65 */ - .long sys_setsid - .long sys_sigaction - .long sys_sgetmask - .long sys_ssetmask - .long sys_setreuid16 /* 70 */ - .long sys_setregid16 - .long sys_sigsuspend - .long sys_sigpending - .long sys_sethostname - .long sys_setrlimit /* 75 */ - .long sys_old_getrlimit - .long sys_getrusage - .long sys_gettimeofday - .long sys_settimeofday - .long sys_getgroups16 /* 80 */ - .long sys_setgroups16 - .long sys_ni_syscall /* sys_oldselect */ - .long sys_symlink - .long sys_lstat - .long sys_readlink /* 85 */ - .long sys_uselib - .long sys_swapon - .long sys_reboot - .long old_readdir - .long old_mmap /* 90 */ - .long sys_munmap - .long sys_truncate - .long sys_ftruncate - .long sys_fchmod - .long sys_fchown16 /* 95 */ - .long sys_getpriority - .long sys_setpriority - .long sys_ni_syscall /* old profil syscall holder */ - .long sys_statfs - .long sys_fstatfs /* 100 */ - .long sys_ni_syscall /* ioperm */ - .long sys_socketcall - .long sys_syslog - .long sys_setitimer - .long sys_getitimer /* 105 */ - .long sys_newstat - .long sys_newlstat - .long sys_newfstat - .long sys_uname - .long sys_ni_syscall /* 110 */ /* iopl */ - .long sys_vhangup - .long sys_ni_syscall /* idle */ - .long sys_ni_syscall /* vm86old */ - .long sys_wait4 - .long sys_swapoff /* 115 */ - .long sys_sysinfo - .long sys_ipc - .long sys_fsync - .long sys_sigreturn - .long sys_clone /* 120 */ - .long sys_setdomainname - .long sys_newuname - .long sys_ni_syscall /* sys_modify_ldt */ - .long sys_adjtimex - .long sys_mprotect /* 125 */ - .long sys_sigprocmask - .long sys_ni_syscall /* old "create_module" */ - .long sys_init_module - .long sys_delete_module - .long sys_ni_syscall /* 130: old "get_kernel_syms" */ - .long sys_quotactl - .long sys_getpgid - .long sys_fchdir - .long sys_bdflush - .long sys_sysfs /* 135 */ - .long sys_personality - .long sys_ni_syscall /* for afs_syscall */ - .long sys_setfsuid16 - .long sys_setfsgid16 - .long sys_llseek /* 140 */ - .long sys_getdents - .long sys_select - .long sys_flock - .long sys_msync - .long sys_readv /* 145 */ - .long sys_writev - .long sys_getsid - .long sys_fdatasync - .long sys_sysctl - .long sys_mlock /* 150 */ - .long sys_munlock - .long sys_mlockall - .long sys_munlockall - .long sys_sched_setparam - .long sys_sched_getparam /* 155 */ - .long sys_sched_setscheduler - .long sys_sched_getscheduler - .long sys_sched_yield - .long sys_sched_get_priority_max - .long sys_sched_get_priority_min /* 160 */ - .long sys_sched_rr_get_interval - .long sys_nanosleep - .long sys_mremap - .long sys_setresuid16 - .long sys_getresuid16 /* 165 */ - .long sys_ni_syscall /* vm86 */ - .long sys_ni_syscall /* old "query_module" */ - .long sys_poll - .long sys_nfsservctl - .long sys_setresgid16 /* 170 */ - .long sys_getresgid16 - .long sys_prctl - .long sys_rt_sigreturn - .long sys_rt_sigaction - .long sys_rt_sigprocmask /* 175 */ - .long sys_rt_sigpending - .long sys_rt_sigtimedwait - .long sys_rt_sigqueueinfo - .long sys_rt_sigsuspend - .long sys_pread_wrapper /* 180 */ - .long sys_pwrite_wrapper - .long sys_chown16 - .long sys_getcwd - .long sys_capget - .long sys_capset /* 185 */ - .long sys_sigaltstack - .long sys_sendfile - .long sys_ni_syscall /* streams1 */ - .long sys_ni_syscall /* streams2 */ - .long sys_vfork /* 190 */ - .long sys_getrlimit - .long sys_mmap2 - .long sys_truncate64 - .long sys_ftruncate64 - .long sys_stat64 /* 195 */ - .long sys_lstat64 - .long sys_fstat64 - .long sys_lchown - .long sys_getuid - .long sys_getgid /* 200 */ - .long sys_geteuid - .long sys_getegid - .long sys_setreuid - .long sys_setregid - .long sys_getgroups /* 205 */ - .long sys_setgroups - .long sys_fchown - .long sys_setresuid - .long sys_getresuid - .long sys_setresgid /* 210 */ - .long sys_getresgid - .long sys_chown - .long sys_setuid - .long sys_setgid - .long sys_setfsuid /* 215 */ - .long sys_setfsgid - .long sys_pivot_root - .long sys_mincore - .long sys_madvise - .long sys_getdents64 /* 220 */ - .long sys_fcntl64 - .long sys_ni_syscall /* reserved for TUX */ - .long sys_ni_syscall /* Reserved for Security */ - .long sys_gettid - .long sys_readahead /* 225 */ - .long sys_setxattr - .long sys_lsetxattr - .long sys_fsetxattr - .long sys_getxattr - .long sys_lgetxattr /* 230 */ - .long sys_fgetxattr - .long sys_listxattr - .long sys_llistxattr - .long sys_flistxattr - .long sys_removexattr /* 235 */ - .long sys_lremovexattr - .long sys_fremovexattr - .long sys_tkill - .long sys_sendfile64 - .long sys_futex /* 240 */ - .long sys_sched_setaffinity - .long sys_sched_getaffinity - .long sys_ni_syscall - .long sys_ni_syscall - .long sys_io_setup /* 245 */ - .long sys_io_destroy - .long sys_io_getevents - .long sys_io_submit - .long sys_io_cancel - .long sys_fadvise64 /* 250 */ - .long sys_ni_syscall - .long sys_exit_group - .long sys_lookup_dcookie - .long sys_epoll_create - .long sys_epoll_ctl /* 255 */ - .long sys_epoll_wait - .long sys_remap_file_pages - .long sys_set_tid_address - .long sys_timer_create - .long sys_timer_settime /* 260 */ - .long sys_timer_gettime - .long sys_timer_getoverrun - .long sys_timer_delete - .long sys_clock_settime - .long sys_clock_gettime /* 265 */ - .long sys_clock_getres - .long sys_clock_nanosleep - .long sys_statfs64 - .long sys_fstatfs64 - .long sys_tgkill /* 270 */ - .long sys_utimes - .long sys_fadvise64_64_wrapper - .long sys_ni_syscall /* Reserved for vserver */ - .long sys_ni_syscall /* Reserved for mbind */ - .long sys_ni_syscall /* 275 - get_mempolicy */ - .long sys_ni_syscall /* set_mempolicy */ - .long sys_mq_open - .long sys_mq_unlink - .long sys_mq_timedsend - .long sys_mq_timedreceive /* 280 */ - .long sys_mq_notify - .long sys_mq_getsetattr - .long sys_ni_syscall /* Reserved for kexec */ - .long sys_waitid - .long sys_add_key /* 285 */ - .long sys_request_key - .long sys_keyctl - .long sys_ioprio_set - .long sys_ioprio_get - .long sys_inotify_init /* 290 */ - .long sys_inotify_add_watch - .long sys_inotify_rm_watch - -/* End of entry.S */
diff --git a/arch/sh/kernel/head.S b/arch/sh/kernel/head.S index 9b9e6ef..f5f53d1 100644 --- a/arch/sh/kernel/head.S +++ b/arch/sh/kernel/head.S
@@ -11,6 +11,18 @@ * Head.S contains the SH exception handlers and startup code. */ #include <linux/linkage.h> +#include <asm/thread_info.h> + +#ifdef CONFIG_CPU_SH4A +#define SYNCO() synco + +#define PREFI(label, reg) \ + mov.l label, reg; \ + prefi @reg +#else +#define SYNCO() +#define PREFI(label, reg) +#endif .section .empty_zero_page, "aw" ENTRY(empty_zero_page) @@ -42,18 +54,25 @@ ! Initialize global interrupt mask mov #0, r0 ldc r0, r6_bank + + /* + * Prefetch if possible to reduce cache miss penalty. + * + * We do this early on for SH-4A as a micro-optimization, + * as later on we will have speculative execution enabled + * and this will become less of an issue. + */ + PREFI(5f, r0) + PREFI(6f, r0) + ! mov.l 2f, r0 mov r0, r15 ! Set initial r15 (stack pointer) - mov #0x20, r1 ! - shll8 r1 ! r1 = 8192 + mov #(THREAD_SIZE >> 8), r1 + shll8 r1 ! r1 = THREAD_SIZE sub r1, r0 ! ldc r0, r7_bank ! ... and initial thread_info - ! - ! Additional CPU initialization - mov.l 6f, r0 - jsr @r0 - nop + ! Clear BSS area mov.l 3f, r1 add #4, r1 @@ -62,6 +81,14 @@ 9: cmp/hs r2, r1 bf/s 9b ! while (r1 < r2) mov.l r0,@-r2 + + ! Additional CPU initialization + mov.l 6f, r0 + jsr @r0 + nop + + SYNCO() ! Wait for pending instructions.. + ! Start kernel mov.l 5f, r0 jmp @r0 @@ -69,7 +96,7 @@ .balign 4 1: .long 0x400080F0 ! MD=1, RB=0, BL=0, FD=1, IMASK=0xF -2: .long stack +2: .long init_thread_union+THREAD_SIZE 3: .long __bss_start 4: .long _end 5: .long start_kernel
diff --git a/arch/sh/kernel/io.c b/arch/sh/kernel/io.c index 71c9fde..501fe03 100644 --- a/arch/sh/kernel/io.c +++ b/arch/sh/kernel/io.c
@@ -61,6 +61,73 @@ } EXPORT_SYMBOL(memset_io); +void __raw_readsl(unsigned long addr, void *datap, int len) +{ + u32 *data; + + for (data = datap; (len != 0) && (((u32)data & 0x1f) != 0); len--) + *data++ = ctrl_inl(addr); + + if (likely(len >= (0x20 >> 2))) { + int tmp2, tmp3, tmp4, tmp5, tmp6; + + __asm__ __volatile__( + "1: \n\t" + "mov.l @%7, r0 \n\t" + "mov.l @%7, %2 \n\t" +#ifdef CONFIG_CPU_SH4 + "movca.l r0, @%0 \n\t" +#else + "mov.l r0, @%0 \n\t" +#endif + "mov.l @%7, %3 \n\t" + "mov.l @%7, %4 \n\t" + "mov.l @%7, %5 \n\t" + "mov.l @%7, %6 \n\t" + "mov.l @%7, r7 \n\t" + "mov.l @%7, r0 \n\t" + "mov.l %2, @(0x04,%0) \n\t" + "mov #0x20>>2, %2 \n\t" + "mov.l %3, @(0x08,%0) \n\t" + "sub %2, %1 \n\t" + "mov.l %4, @(0x0c,%0) \n\t" + "cmp/hi %1, %2 ! T if 32 > len \n\t" + "mov.l %5, @(0x10,%0) \n\t" + "mov.l %6, @(0x14,%0) \n\t" + "mov.l r7, @(0x18,%0) \n\t" + "mov.l r0, @(0x1c,%0) \n\t" + "bf.s 1b \n\t" + " add #0x20, %0 \n\t" + : "=&r" (data), "=&r" (len), + "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4), + "=&r" (tmp5), "=&r" (tmp6) + : "r"(addr), "0" (data), "1" (len) + : "r0", "r7", "t", "memory"); + } + + for (; len != 0; len--) + *data++ = ctrl_inl(addr); +} +EXPORT_SYMBOL(__raw_readsl); + +void __raw_writesl(unsigned long addr, const void *data, int len) +{ + if (likely(len != 0)) { + int tmp1; + + __asm__ __volatile__ ( + "1: \n\t" + "mov.l @%0+, %1 \n\t" + "dt %3 \n\t" + "bf.s 1b \n\t" + " mov.l %1, @%4 \n\t" + : "=&r" (data), "=&r" (tmp1) + : "0" (data), "r" (len), "r"(addr) + : "t", "memory"); + } +} +EXPORT_SYMBOL(__raw_writesl); + void __iomem *ioport_map(unsigned long port, unsigned int nr) { return sh_mv.mv_ioport_map(port, nr);
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c index c2e07f7..c7ebd6a 100644 --- a/arch/sh/kernel/irq.c +++ b/arch/sh/kernel/irq.c
@@ -1,5 +1,4 @@ -/* $Id: irq.c,v 1.20 2004/01/13 05:52:11 kkojima Exp $ - * +/* * linux/arch/sh/kernel/irq.c * * Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar @@ -7,13 +6,15 @@ * * SuperH version: Copyright (C) 1999 Niibe Yutaka */ - #include <linux/irq.h> #include <linux/interrupt.h> +#include <linux/module.h> #include <linux/kernel_stat.h> #include <linux/seq_file.h> #include <asm/irq.h> #include <asm/processor.h> +#include <asm/uaccess.h> +#include <asm/thread_info.h> #include <asm/cpu/mmu_context.h> /* @@ -60,15 +61,46 @@ } #endif +#ifdef CONFIG_4KSTACKS +/* + * per-CPU IRQ handling contexts (thread information and stack) + */ +union irq_ctx { + struct thread_info tinfo; + u32 stack[THREAD_SIZE/sizeof(u32)]; +}; + +static union irq_ctx *hardirq_ctx[NR_CPUS]; +static union irq_ctx *softirq_ctx[NR_CPUS]; +#endif asmlinkage int do_IRQ(unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7, struct pt_regs regs) { int irq = r4; +#ifdef CONFIG_4KSTACKS + union irq_ctx *curctx, *irqctx; +#endif irq_enter(); +#ifdef CONFIG_DEBUG_STACKOVERFLOW + /* Debugging check for stack overflow: is there less than 1KB free? */ + { + long sp; + + __asm__ __volatile__ ("and r15, %0" : + "=r" (sp) : "0" (THREAD_SIZE - 1)); + + if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) { + printk("do_IRQ: stack overflow: %ld\n", + sp - sizeof(struct thread_info)); + dump_stack(); + } + } +#endif + #ifdef CONFIG_CPU_HAS_INTEVT __asm__ __volatile__ ( #ifdef CONFIG_CPU_HAS_SR_RB @@ -87,7 +119,135 @@ #endif irq = irq_demux(irq); - __do_IRQ(irq, ®s); + +#ifdef CONFIG_4KSTACKS + curctx = (union irq_ctx *)current_thread_info(); + irqctx = hardirq_ctx[smp_processor_id()]; + + /* + * this is where we switch to the IRQ stack. However, if we are + * already using the IRQ stack (because we interrupted a hardirq + * handler) we can't do that and just have to keep using the + * current stack (which is the irq stack already after all) + */ + if (curctx != irqctx) { + u32 *isp; + + isp = (u32 *)((char *)irqctx + sizeof(*irqctx)); + irqctx->tinfo.task = curctx->tinfo.task; + irqctx->tinfo.previous_sp = current_stack_pointer; + + __asm__ __volatile__ ( + "mov %0, r4 \n" + "mov %1, r5 \n" + "mov r15, r9 \n" + "jsr @%2 \n" + /* swith to the irq stack */ + " mov %3, r15 \n" + /* restore the stack (ring zero) */ + "mov r9, r15 \n" + : /* no outputs */ + : "r" (irq), "r" (®s), "r" (__do_IRQ), "r" (isp) + /* XXX: A somewhat excessive clobber list? -PFM */ + : "memory", "r0", "r1", "r2", "r3", "r4", + "r5", "r6", "r7", "r8", "t", "pr" + ); + } else +#endif + __do_IRQ(irq, ®s); + irq_exit(); + return 1; } + +#ifdef CONFIG_4KSTACKS +/* + * These should really be __section__(".bss.page_aligned") as well, but + * gcc's 3.0 and earlier don't handle that correctly. + */ +static char softirq_stack[NR_CPUS * THREAD_SIZE] + __attribute__((__aligned__(THREAD_SIZE))); + +static char hardirq_stack[NR_CPUS * THREAD_SIZE] + __attribute__((__aligned__(THREAD_SIZE))); + +/* + * allocate per-cpu stacks for hardirq and for softirq processing + */ +void irq_ctx_init(int cpu) +{ + union irq_ctx *irqctx; + + if (hardirq_ctx[cpu]) + return; + + irqctx = (union irq_ctx *)&hardirq_stack[cpu * THREAD_SIZE]; + irqctx->tinfo.task = NULL; + irqctx->tinfo.exec_domain = NULL; + irqctx->tinfo.cpu = cpu; + irqctx->tinfo.preempt_count = HARDIRQ_OFFSET; + irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); + + hardirq_ctx[cpu] = irqctx; + + irqctx = (union irq_ctx *)&softirq_stack[cpu * THREAD_SIZE]; + irqctx->tinfo.task = NULL; + irqctx->tinfo.exec_domain = NULL; + irqctx->tinfo.cpu = cpu; + irqctx->tinfo.preempt_count = SOFTIRQ_OFFSET; + irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); + + softirq_ctx[cpu] = irqctx; + + printk("CPU %u irqstacks, hard=%p soft=%p\n", + cpu, hardirq_ctx[cpu], softirq_ctx[cpu]); +} + +void irq_ctx_exit(int cpu) +{ + hardirq_ctx[cpu] = NULL; +} + +extern asmlinkage void __do_softirq(void); + +asmlinkage void do_softirq(void) +{ + unsigned long flags; + struct thread_info *curctx; + union irq_ctx *irqctx; + u32 *isp; + + if (in_interrupt()) + return; + + local_irq_save(flags); + + if (local_softirq_pending()) { + curctx = current_thread_info(); + irqctx = softirq_ctx[smp_processor_id()]; + irqctx->tinfo.task = curctx->task; + irqctx->tinfo.previous_sp = current_stack_pointer; + + /* build the stack frame on the softirq stack */ + isp = (u32 *)((char *)irqctx + sizeof(*irqctx)); + + __asm__ __volatile__ ( + "mov r15, r9 \n" + "jsr @%0 \n" + /* switch to the softirq stack */ + " mov %1, r15 \n" + /* restore the thread stack */ + "mov r9, r15 \n" + : /* no outputs */ + : "r" (__do_softirq), "r" (isp) + /* XXX: A somewhat excessive clobber list? -PFM */ + : "memory", "r0", "r1", "r2", "r3", "r4", + "r5", "r6", "r7", "r8", "r9", "r15", "t", "pr" + ); + } + + local_irq_restore(flags); +} +EXPORT_SYMBOL(do_softirq); +#endif
diff --git a/arch/sh/kernel/kgdb_stub.c b/arch/sh/kernel/kgdb_stub.c index 42638b9..9c6315f 100644 --- a/arch/sh/kernel/kgdb_stub.c +++ b/arch/sh/kernel/kgdb_stub.c
@@ -101,16 +101,17 @@ #include <linux/linkage.h> #include <linux/init.h> +#ifdef CONFIG_SH_KGDB_CONSOLE +#include <linux/console.h> +#endif + #include <asm/system.h> #include <asm/current.h> #include <asm/signal.h> #include <asm/pgtable.h> #include <asm/ptrace.h> #include <asm/kgdb.h> - -#ifdef CONFIG_SH_KGDB_CONSOLE -#include <linux/console.h> -#endif +#include <asm/io.h> /* Function pointers for linkage */ kgdb_debug_hook_t *kgdb_debug_hook; @@ -240,7 +241,6 @@ /* Misc static */ static int stepped_address; static short stepped_opcode; -static const char hexchars[] = "0123456789abcdef"; static char in_buffer[BUFMAX]; static char out_buffer[OUTBUFMAX]; @@ -253,29 +253,6 @@ #define BUF_THREAD_ID_SIZE 16 #endif -/* Return addr as a real volatile address */ -static inline unsigned int ctrl_inl(const unsigned long addr) -{ - return *(volatile unsigned long *) addr; -} - -/* Correctly set *addr using volatile */ -static inline void ctrl_outl(const unsigned int b, unsigned long addr) -{ - *(volatile unsigned long *) addr = b; -} - -/* Get high hex bits */ -static char highhex(const int x) -{ - return hexchars[(x >> 4) & 0xf]; -} - -/* Get low hex bits */ -static char lowhex(const int x) -{ - return hexchars[x & 0xf]; -} /* Convert ch to hex */ static int hex(const char ch)
diff --git a/arch/sh/kernel/machine_kexec.c b/arch/sh/kernel/machine_kexec.c index 6bcd8d9..08587cd 100644 --- a/arch/sh/kernel/machine_kexec.c +++ b/arch/sh/kernel/machine_kexec.c
@@ -29,12 +29,6 @@ extern const unsigned int relocate_new_kernel_size; extern void *gdb_vbr_vector; -/* - * Provide a dummy crash_notes definition while crash dump arrives to ppc. - * This prevents breakage of crash_notes attribute in kernel/ksysfs.c. - */ -void *crash_notes = NULL; - void machine_shutdown(void) { }
diff --git a/arch/sh/kernel/pm.c b/arch/sh/kernel/pm.c new file mode 100644 index 0000000..10ab62c --- /dev/null +++ b/arch/sh/kernel/pm.c
@@ -0,0 +1,88 @@ +/* + * Generic Power Management Routine + * + * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License. + */ +#include <linux/suspend.h> +#include <linux/delay.h> +#include <linux/gfp.h> +#include <asm/freq.h> +#include <asm/io.h> +#include <asm/watchdog.h> +#include <asm/pm.h> + +#define INTR_OFFSET 0x600 + +#define STBCR 0xffffff82 +#define STBCR2 0xffffff88 + +#define STBCR_STBY 0x80 +#define STBCR_MSTP2 0x04 + +#define MCR 0xffffff68 +#define RTCNT 0xffffff70 + +#define MCR_RMODE 2 +#define MCR_RFSH 4 + +void pm_enter(void) +{ + u8 stbcr, csr; + u16 frqcr, mcr; + u32 vbr_new, vbr_old; + + set_bl_bit(); + + /* set wdt */ + csr = sh_wdt_read_csr(); + csr &= ~WTCSR_TME; + csr |= WTCSR_CKS_4096; + sh_wdt_write_csr(csr); + csr = sh_wdt_read_csr(); + sh_wdt_write_cnt(0); + + /* disable PLL1 */ + frqcr = ctrl_inw(FRQCR); + frqcr &= ~(FRQCR_PLLEN | FRQCR_PSTBY); + ctrl_outw(frqcr, FRQCR); + + /* enable standby */ + stbcr = ctrl_inb(STBCR); + ctrl_outb(stbcr | STBCR_STBY | STBCR_MSTP2, STBCR); + + /* set self-refresh */ + mcr = ctrl_inw(MCR); + ctrl_outw(mcr & ~MCR_RFSH, MCR); + + /* set interrupt handler */ + asm volatile("stc vbr, %0" : "=r" (vbr_old)); + vbr_new = get_zeroed_page(GFP_ATOMIC); + udelay(50); + memcpy((void*)(vbr_new + INTR_OFFSET), + &wakeup_start, &wakeup_end - &wakeup_start); + asm volatile("ldc %0, vbr" : : "r" (vbr_new)); + + ctrl_outw(0, RTCNT); + ctrl_outw(mcr | MCR_RFSH | MCR_RMODE, MCR); + + cpu_sleep(); + + asm volatile("ldc %0, vbr" : : "r" (vbr_old)); + + free_page(vbr_new); + + /* enable PLL1 */ + frqcr = ctrl_inw(FRQCR); + frqcr |= FRQCR_PSTBY; + ctrl_outw(frqcr, FRQCR); + udelay(50); + frqcr |= FRQCR_PLLEN; + ctrl_outw(frqcr, FRQCR); + + ctrl_outb(stbcr, STBCR); + + clear_bl_bit(); +}
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index f203131..0b1d5dd 100644 --- a/arch/sh/kernel/process.c +++ b/arch/sh/kernel/process.c
@@ -81,16 +81,6 @@ void machine_restart(char * __unused) { - -#ifdef CONFIG_KEXEC - struct kimage *image; - image = xchg(&kexec_image, 0); - if (image) { - machine_shutdown(); - machine_kexec(image); - } -#endif - /* SR.BL=1 and invoke address error to let CPU reset (manual reset) */ asm volatile("ldc %0, sr\n\t" "mov.l @%1, %0" : : "r" (0x10000000), "r" (0x80000001)); @@ -263,6 +253,7 @@ unsigned long unused, struct task_struct *p, struct pt_regs *regs) { + struct thread_info *ti = task_thread_info(p); struct pt_regs *childregs; #if defined(CONFIG_SH_FPU) struct task_struct *tsk = current; @@ -277,8 +268,10 @@ if (user_mode(regs)) { childregs->regs[15] = usp; + ti->addr_limit = USER_DS; } else { childregs->regs[15] = (unsigned long)task_stack_page(p) + THREAD_SIZE; + ti->addr_limit = KERNEL_DS; } if (clone_flags & CLONE_SETTLS) { childregs->gbr = childregs->regs[0]; @@ -299,13 +292,15 @@ { ctrl_outl(pc, UBC_BARA); +#ifdef CONFIG_MMU /* We don't have any ASID settings for the SH-2! */ if (cpu_data->type != CPU_SH7604) ctrl_outb(asid, UBC_BASRA); +#endif ctrl_outl(0, UBC_BAMRA); - if (cpu_data->type == CPU_SH7729) { + if (cpu_data->type == CPU_SH7729 || cpu_data->type == CPU_SH7710) { ctrl_outw(BBR_INST | BBR_READ | BBR_CPU, UBC_BBRA); ctrl_outl(BRCR_PCBA | BRCR_PCTE, UBC_BRCR); } else { @@ -344,6 +339,7 @@ } #endif +#ifdef CONFIG_MMU /* * Restore the kernel mode register * k7 (r7_bank1) @@ -351,19 +347,21 @@ asm volatile("ldc %0, r7_bank" : /* no output */ : "r" (task_thread_info(next))); +#endif -#ifdef CONFIG_MMU /* If no tasks are using the UBC, we're done */ if (ubc_usercnt == 0) /* If no tasks are using the UBC, we're done */; else if (next->thread.ubc_pc && next->mm) { - ubc_set_tracing(next->mm->context & MMU_CONTEXT_ASID_MASK, - next->thread.ubc_pc); + int asid = 0; +#ifdef CONFIG_MMU + asid |= next->mm->context.id & MMU_CONTEXT_ASID_MASK; +#endif + ubc_set_tracing(asid, next->thread.ubc_pc); } else { ctrl_outw(0, UBC_BBRA); ctrl_outw(0, UBC_BBRB); } -#endif return prev; }
diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c index f7eebbd..04ca13a0 100644 --- a/arch/sh/kernel/ptrace.c +++ b/arch/sh/kernel/ptrace.c
@@ -224,7 +224,6 @@ case PTRACE_SETDSPREGS: { unsigned long dp; - int i; ret = -EIO; dp = ((unsigned long) child) + THREAD_SIZE -
diff --git a/arch/sh/kernel/semaphore.c b/arch/sh/kernel/semaphore.c index a3c24dc..184119e 100644 --- a/arch/sh/kernel/semaphore.c +++ b/arch/sh/kernel/semaphore.c
@@ -14,7 +14,7 @@ #include <asm/semaphore.h> #include <asm/semaphore-helper.h> -spinlock_t semaphore_wake_lock; +DEFINE_SPINLOCK(semaphore_wake_lock); /* * Semaphores are implemented using a two-way counter:
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index e75189c..5f58733 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c
@@ -43,27 +43,14 @@ * The bigger value means no problem. */ struct sh_cpuinfo boot_cpu_data = { CPU_SH_NONE, 10000000, }; +#ifdef CONFIG_VT struct screen_info screen_info; +#endif #if defined(CONFIG_SH_UNKNOWN) struct sh_machine_vector sh_mv; #endif -/* We need this to satisfy some external references. */ -struct screen_info screen_info = { - 0, 25, /* orig-x, orig-y */ - 0, /* unused */ - 0, /* orig-video-page */ - 0, /* orig-video-mode */ - 80, /* orig-video-cols */ - 0,0,0, /* ega_ax, ega_bx, ega_cx */ - 25, /* orig-video-lines */ - 0, /* orig-video-isVGA */ - 16 /* orig-video-points */ -}; - -extern void platform_setup(void); -extern char *get_system_type(void); extern int root_mountflags; #define MV_NAME_SIZE 32 @@ -90,29 +77,8 @@ static char command_line[COMMAND_LINE_SIZE] = { 0, }; -struct resource standard_io_resources[] = { - { "dma1", 0x00, 0x1f }, - { "pic1", 0x20, 0x3f }, - { "timer", 0x40, 0x5f }, - { "keyboard", 0x60, 0x6f }, - { "dma page reg", 0x80, 0x8f }, - { "pic2", 0xa0, 0xbf }, - { "dma2", 0xc0, 0xdf }, - { "fpu", 0xf0, 0xff } -}; - -#define STANDARD_IO_RESOURCES (sizeof(standard_io_resources)/sizeof(struct resource)) - -/* System RAM - interrupted by the 640kB-1M hole */ -#define code_resource (ram_resources[3]) -#define data_resource (ram_resources[4]) -static struct resource ram_resources[] = { - { "System RAM", 0x000000, 0x09ffff, IORESOURCE_BUSY }, - { "System RAM", 0x100000, 0x100000, IORESOURCE_BUSY }, - { "Video RAM area", 0x0a0000, 0x0bffff }, - { "Kernel code", 0x100000, 0 }, - { "Kernel data", 0, 0 } -}; +static struct resource code_resource = { .name = "Kernel code", }; +static struct resource data_resource = { .name = "Kernel data", }; unsigned long memory_start, memory_end; @@ -145,6 +111,24 @@ memory_end = memory_start + mem_size; } } + +#ifdef CONFIG_EARLY_PRINTK + if (c == ' ' && !memcmp(from, "earlyprintk=", 12)) { + char *ep_end; + + if (to != command_line) + to--; + + from += 12; + ep_end = strchr(from, ' '); + + setup_early_printk(from); + printk("early console enabled\n"); + + from = ep_end; + } +#endif + if (c == ' ' && !memcmp(from, "sh_mv=", 6)) { char* mv_end; char* mv_comma; @@ -237,6 +221,9 @@ __set_io_port_base(mv_io_base); #endif + if (!sh_mv.mv_nr_irqs) + sh_mv.mv_nr_irqs = NR_IRQS; + return 0; } @@ -245,11 +232,6 @@ unsigned long bootmap_size; unsigned long start_pfn, max_pfn, max_low_pfn; -#ifdef CONFIG_EARLY_PRINTK - extern void enable_early_printk(void); - - enable_early_printk(); -#endif #ifdef CONFIG_CMDLINE_BOOL strcpy(COMMAND_LINE, CONFIG_CMDLINE); #endif @@ -368,14 +350,14 @@ #endif /* Perform the machine specific initialisation */ - platform_setup(); + if (likely(sh_mv.mv_setup)) + sh_mv.mv_setup(cmdline_p); paging_init(); } struct sh_machine_vector* __init get_mv_byname(const char* name) { - extern int strcasecmp(const char *, const char *); extern long __machvec_start, __machvec_end; struct sh_machine_vector *all_vecs = (struct sh_machine_vector *)&__machvec_start; @@ -410,25 +392,18 @@ subsys_initcall(topology_init); static const char *cpu_name[] = { - [CPU_SH7604] = "SH7604", - [CPU_SH7705] = "SH7705", - [CPU_SH7708] = "SH7708", - [CPU_SH7729] = "SH7729", - [CPU_SH7300] = "SH7300", - [CPU_SH7750] = "SH7750", - [CPU_SH7750S] = "SH7750S", - [CPU_SH7750R] = "SH7750R", - [CPU_SH7751] = "SH7751", - [CPU_SH7751R] = "SH7751R", - [CPU_SH7760] = "SH7760", - [CPU_SH73180] = "SH73180", - [CPU_ST40RA] = "ST40RA", - [CPU_ST40GX1] = "ST40GX1", - [CPU_SH4_202] = "SH4-202", - [CPU_SH4_501] = "SH4-501", - [CPU_SH7770] = "SH7770", - [CPU_SH7780] = "SH7780", - [CPU_SH7781] = "SH7781", + [CPU_SH7604] = "SH7604", [CPU_SH7300] = "SH7300", + [CPU_SH7705] = "SH7705", [CPU_SH7706] = "SH7706", + [CPU_SH7707] = "SH7707", [CPU_SH7708] = "SH7708", + [CPU_SH7709] = "SH7709", [CPU_SH7710] = "SH7710", + [CPU_SH7729] = "SH7729", [CPU_SH7750] = "SH7750", + [CPU_SH7750S] = "SH7750S", [CPU_SH7750R] = "SH7750R", + [CPU_SH7751] = "SH7751", [CPU_SH7751R] = "SH7751R", + [CPU_SH7760] = "SH7760", [CPU_SH73180] = "SH73180", + [CPU_ST40RA] = "ST40RA", [CPU_ST40GX1] = "ST40GX1", + [CPU_SH4_202] = "SH4-202", [CPU_SH4_501] = "SH4-501", + [CPU_SH7770] = "SH7770", [CPU_SH7780] = "SH7780", + [CPU_SH7781] = "SH7781", [CPU_SH7343] = "SH7343", [CPU_SH_NONE] = "Unknown" }; @@ -438,8 +413,10 @@ } #ifdef CONFIG_PROC_FS +/* Symbolic CPU flags, keep in sync with asm/cpu-features.h */ static const char *cpu_flags[] = { - "none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr", "ptea", NULL + "none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr", + "ptea", "llsc", "l2", NULL }; static void show_cpuflags(struct seq_file *m) @@ -460,7 +437,8 @@ seq_printf(m, "\n"); } -static void show_cacheinfo(struct seq_file *m, const char *type, struct cache_info info) +static void show_cacheinfo(struct seq_file *m, const char *type, + struct cache_info info) { unsigned int cache_size; @@ -493,7 +471,7 @@ * unified cache on the SH-2 and SH-3, as well as the harvard * style cache on the SH-4. */ - if (test_bit(SH_CACHE_COMBINED, &(boot_cpu_data.icache.flags))) { + if (boot_cpu_data.icache.flags & SH_CACHE_COMBINED) { seq_printf(m, "unified\n"); show_cacheinfo(m, "cache", boot_cpu_data.icache); } else { @@ -502,6 +480,10 @@ show_cacheinfo(m, "dcache", boot_cpu_data.dcache); } + /* Optional secondary cache */ + if (boot_cpu_data.flags & CPU_HAS_L2_CACHE) + show_cacheinfo(m, "scache", boot_cpu_data.scache); + seq_printf(m, "bogomips\t: %lu.%02lu\n", boot_cpu_data.loops_per_jiffy/(500000/HZ), (boot_cpu_data.loops_per_jiffy/(5000/HZ)) % 100); @@ -617,4 +599,3 @@ } __setup("kgdb=", kgdb_parse_options); #endif /* CONFIG_SH_KGDB */ -
diff --git a/arch/sh/kernel/sh_ksyms.c b/arch/sh/kernel/sh_ksyms.c index 245ed8f..d3cbfa2 100644 --- a/arch/sh/kernel/sh_ksyms.c +++ b/arch/sh/kernel/sh_ksyms.c
@@ -27,21 +27,11 @@ /* platform dependent support */ EXPORT_SYMBOL(dump_fpu); -EXPORT_SYMBOL(iounmap); -EXPORT_SYMBOL(enable_irq); -EXPORT_SYMBOL(disable_irq); -EXPORT_SYMBOL(probe_irq_mask); EXPORT_SYMBOL(kernel_thread); -EXPORT_SYMBOL(disable_irq_nosync); EXPORT_SYMBOL(irq_desc); EXPORT_SYMBOL(no_irq_type); -EXPORT_SYMBOL(strstr); EXPORT_SYMBOL(strlen); -EXPORT_SYMBOL(strnlen); -EXPORT_SYMBOL(strchr); -EXPORT_SYMBOL(strcat); -EXPORT_SYMBOL(strncat); /* PCI exports */ #ifdef CONFIG_PCI @@ -52,13 +42,8 @@ /* mem exports */ EXPORT_SYMBOL(memchr); EXPORT_SYMBOL(memcpy); -EXPORT_SYMBOL(memcpy_fromio); -EXPORT_SYMBOL(memcpy_toio); EXPORT_SYMBOL(memset); -EXPORT_SYMBOL(memset_io); EXPORT_SYMBOL(memmove); -EXPORT_SYMBOL(memcmp); -EXPORT_SYMBOL(memscan); EXPORT_SYMBOL(__copy_user); EXPORT_SYMBOL(boot_cpu_data); @@ -94,7 +79,9 @@ DECLARE_EXPORT(__movstr_i4_even); DECLARE_EXPORT(__movstr_i4_odd); DECLARE_EXPORT(__movstrSI12_i4); +#endif +#if defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB) /* needed by some modules */ EXPORT_SYMBOL(flush_cache_all); EXPORT_SYMBOL(flush_cache_range); @@ -102,11 +89,9 @@ EXPORT_SYMBOL(__flush_purge_region); #endif -#if defined(CONFIG_SH7705_CACHE_32KB) -EXPORT_SYMBOL(flush_cache_all); -EXPORT_SYMBOL(flush_cache_range); -EXPORT_SYMBOL(flush_dcache_page); -EXPORT_SYMBOL(__flush_purge_region); +#if defined(CONFIG_MMU) && (defined(CONFIG_CPU_SH4) || \ + defined(CONFIG_SH7705_CACHE_32KB)) +EXPORT_SYMBOL(clear_user_page); #endif EXPORT_SYMBOL(flush_tlb_page); @@ -116,7 +101,12 @@ EXPORT_SYMBOL(synchronize_irq); #endif +#ifdef CONFIG_PM +EXPORT_SYMBOL(pm_suspend); +#endif + EXPORT_SYMBOL(csum_partial); +#ifdef CONFIG_IPV6 EXPORT_SYMBOL(csum_ipv6_magic); -EXPORT_SYMBOL(consistent_sync); +#endif EXPORT_SYMBOL(clear_page);
diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c index b475c4d..5213f5b 100644 --- a/arch/sh/kernel/signal.c +++ b/arch/sh/kernel/signal.c
@@ -8,7 +8,6 @@ * SuperH version: Copyright (C) 1999, 2000 Niibe Yutaka & Kaz Kojima * */ - #include <linux/sched.h> #include <linux/mm.h> #include <linux/smp.h> @@ -21,6 +20,7 @@ #include <linux/unistd.h> #include <linux/stddef.h> #include <linux/tty.h> +#include <linux/elf.h> #include <linux/personality.h> #include <linux/binfmts.h> @@ -29,12 +29,8 @@ #include <asm/pgtable.h> #include <asm/cacheflush.h> -#define DEBUG_SIG 0 - #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) -asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset); - /* * Atomically swap in the new signal mask, and wait for a signal. */ @@ -43,51 +39,17 @@ unsigned long r5, unsigned long r6, unsigned long r7, struct pt_regs regs) { - sigset_t saveset; - mask &= _BLOCKABLE; spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; + current->saved_sigmask = current->blocked; siginitset(¤t->blocked, mask); recalc_sigpending(); spin_unlock_irq(¤t->sighand->siglock); - regs.regs[0] = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(®s, &saveset)) - return -EINTR; - } -} - -asmlinkage int -sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize, - unsigned long r6, unsigned long r7, - struct pt_regs regs) -{ - sigset_t saveset, newset; - - /* XXX: Don't preclude handling different sized sigset_t's. */ - if (sigsetsize != sizeof(sigset_t)) - return -EINVAL; - - if (copy_from_user(&newset, unewset, sizeof(newset))) - return -EFAULT; - sigdelsetmask(&newset, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - regs.regs[0] = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(®s, &saveset)) - return -EINTR; - } + current->state = TASK_INTERRUPTIBLE; + schedule(); + set_thread_flag(TIF_RESTORE_SIGMASK); + return -ERESTARTNOHAND; } asmlinkage int @@ -348,7 +310,12 @@ return (void __user *)((sp - frame_size) & -8ul); } -static void setup_frame(int sig, struct k_sigaction *ka, +/* These symbols are defined with the addresses in the vsyscall page. + See vsyscall-trapa.S. */ +extern void __user __kernel_sigreturn; +extern void __user __kernel_rt_sigreturn; + +static int setup_frame(int sig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *regs) { struct sigframe __user *frame; @@ -368,15 +335,18 @@ err |= setup_sigcontext(&frame->sc, regs, set->sig[0]); - if (_NSIG_WORDS > 1) { + if (_NSIG_WORDS > 1) err |= __copy_to_user(frame->extramask, &set->sig[1], sizeof(frame->extramask)); - } /* Set up to return from userspace. If provided, use a stub already in userspace. */ if (ka->sa.sa_flags & SA_RESTORER) { regs->pr = (unsigned long) ka->sa.sa_restorer; +#ifdef CONFIG_VSYSCALL + } else if (likely(current->mm->context.vdso)) { + regs->pr = VDSO_SYM(&__kernel_sigreturn); +#endif } else { /* Generate return code (system call to sigreturn) */ err |= __put_user(MOVW(7), &frame->retcode[0]); @@ -402,21 +372,22 @@ set_fs(USER_DS); -#if DEBUG_SIG - printk("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n", - current->comm, current->pid, frame, regs->pc, regs->pr); -#endif + pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n", + current->comm, current->pid, frame, regs->pc, regs->pr); flush_cache_sigtramp(regs->pr); + if ((-regs->pr & (L1_CACHE_BYTES-1)) < sizeof(frame->retcode)) flush_cache_sigtramp(regs->pr + L1_CACHE_BYTES); - return; + + return 0; give_sigsegv: force_sigsegv(sig, current); + return -EFAULT; } -static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, +static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *set, struct pt_regs *regs) { struct rt_sigframe __user *frame; @@ -452,6 +423,10 @@ already in userspace. */ if (ka->sa.sa_flags & SA_RESTORER) { regs->pr = (unsigned long) ka->sa.sa_restorer; +#ifdef CONFIG_VSYSCALL + } else if (likely(current->mm->context.vdso)) { + regs->pr = VDSO_SYM(&__kernel_rt_sigreturn); +#endif } else { /* Generate return code (system call to rt_sigreturn) */ err |= __put_user(MOVW(7), &frame->retcode[0]); @@ -477,28 +452,31 @@ set_fs(USER_DS); -#if DEBUG_SIG - printk("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n", - current->comm, current->pid, frame, regs->pc, regs->pr); -#endif + pr_debug("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n", + current->comm, current->pid, frame, regs->pc, regs->pr); flush_cache_sigtramp(regs->pr); + if ((-regs->pr & (L1_CACHE_BYTES-1)) < sizeof(frame->retcode)) flush_cache_sigtramp(regs->pr + L1_CACHE_BYTES); - return; + + return 0; give_sigsegv: force_sigsegv(sig, current); + return -EFAULT; } /* * OK, we're invoking a handler */ -static void +static int handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *oldset, struct pt_regs *regs) { + int ret; + /* Are we from a system call? */ if (regs->tra >= 0) { /* If so, check system call restarting.. */ @@ -539,19 +517,23 @@ /* Set up the stack frame */ if (ka->sa.sa_flags & SA_SIGINFO) - setup_rt_frame(sig, ka, info, oldset, regs); + ret = setup_rt_frame(sig, ka, info, oldset, regs); else - setup_frame(sig, ka, oldset, regs); + ret = setup_frame(sig, ka, oldset, regs); if (ka->sa.sa_flags & SA_ONESHOT) ka->sa.sa_handler = SIG_DFL; - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked,sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + if (ret == 0) { + spin_lock_irq(¤t->sighand->siglock); + sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + if (!(ka->sa.sa_flags & SA_NODEFER)) + sigaddset(¤t->blocked,sig); + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + } + + return ret; } /* @@ -563,11 +545,12 @@ * the kernel can handle, and then we build all the user-level signal handling * stack-frames in one go after that. */ -int do_signal(struct pt_regs *regs, sigset_t *oldset) +static void do_signal(struct pt_regs *regs, unsigned int save_r0) { siginfo_t info; int signr; struct k_sigaction ka; + sigset_t *oldset; /* * We want the common case to go fast, which @@ -576,19 +559,27 @@ * if so. */ if (!user_mode(regs)) - return 1; + return; if (try_to_freeze()) goto no_signal; - if (!oldset) + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + oldset = ¤t->saved_sigmask; + else oldset = ¤t->blocked; signr = get_signal_to_deliver(&info, &ka, regs, NULL); if (signr > 0) { /* Whee! Actually deliver the signal. */ - handle_signal(signr, &ka, &info, oldset, regs); - return 1; + if (handle_signal(signr, &ka, &info, oldset, regs) == 0) { + /* a signal was successfully delivered; the saved + * sigmask will have been stored in the signal frame, + * and will be restored by sigreturn, so we can simply + * clear the TIF_RESTORE_SIGMASK flag */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + clear_thread_flag(TIF_RESTORE_SIGMASK); + } } no_signal: @@ -597,10 +588,27 @@ /* Restart the system call - no handlers present */ if (regs->regs[0] == -ERESTARTNOHAND || regs->regs[0] == -ERESTARTSYS || - regs->regs[0] == -ERESTARTNOINTR || - regs->regs[0] == -ERESTART_RESTARTBLOCK) { + regs->regs[0] == -ERESTARTNOINTR) { + regs->regs[0] = save_r0; regs->pc -= 2; + } else if (regs->regs[0] == -ERESTART_RESTARTBLOCK) { + regs->pc -= 2; + regs->regs[3] = __NR_restart_syscall; } } - return 0; + + /* if there's no signal to deliver, we just put the saved sigmask + * back */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) { + clear_thread_flag(TIF_RESTORE_SIGMASK); + sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + } +} + +asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0, + __u32 thread_info_flags) +{ + /* deal with pending signal delivery */ + if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)) + do_signal(regs, save_r0); }
diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c index 917b2f3..b68ff70 100644 --- a/arch/sh/kernel/sys_sh.c +++ b/arch/sh/kernel/sys_sh.c
@@ -21,7 +21,8 @@ #include <linux/mman.h> #include <linux/file.h> #include <linux/utsname.h> - +#include <linux/module.h> +#include <asm/cacheflush.h> #include <asm/uaccess.h> #include <asm/ipc.h> @@ -44,11 +45,16 @@ return error; } -#if defined(HAVE_ARCH_UNMAPPED_AREA) +unsigned long shm_align_mask = PAGE_SIZE - 1; /* Sane caches */ + +EXPORT_SYMBOL(shm_align_mask); + /* - * To avoid cache alias, we map the shard page with same color. + * To avoid cache aliases, we map the shared page with same color. */ -#define COLOUR_ALIGN(addr) (((addr)+SHMLBA-1)&~(SHMLBA-1)) +#define COLOUR_ALIGN(addr, pgoff) \ + ((((addr) + shm_align_mask) & ~shm_align_mask) + \ + (((pgoff) << PAGE_SHIFT) & shm_align_mask)) unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags) @@ -56,43 +62,52 @@ struct mm_struct *mm = current->mm; struct vm_area_struct *vma; unsigned long start_addr; + int do_colour_align; if (flags & MAP_FIXED) { /* We do not accept a shared mapping if it would violate * cache aliasing constraints. */ - if ((flags & MAP_SHARED) && (addr & (SHMLBA - 1))) + if ((flags & MAP_SHARED) && (addr & shm_align_mask)) return -EINVAL; return addr; } - if (len > TASK_SIZE) + if (unlikely(len > TASK_SIZE)) return -ENOMEM; + do_colour_align = 0; + if (filp || (flags & MAP_SHARED)) + do_colour_align = 1; + if (addr) { - if (flags & MAP_PRIVATE) - addr = PAGE_ALIGN(addr); + if (do_colour_align) + addr = COLOUR_ALIGN(addr, pgoff); else - addr = COLOUR_ALIGN(addr); + addr = PAGE_ALIGN(addr); + vma = find_vma(mm, addr); if (TASK_SIZE - len >= addr && (!vma || addr + len <= vma->vm_start)) return addr; } - if (len <= mm->cached_hole_size) { + + if (len > mm->cached_hole_size) { + start_addr = addr = mm->free_area_cache; + } else { mm->cached_hole_size = 0; - mm->free_area_cache = TASK_UNMAPPED_BASE; + start_addr = addr = TASK_UNMAPPED_BASE; } - if (flags & MAP_PRIVATE) - addr = PAGE_ALIGN(mm->free_area_cache); - else - addr = COLOUR_ALIGN(mm->free_area_cache); - start_addr = addr; full_search: + if (do_colour_align) + addr = COLOUR_ALIGN(addr, pgoff); + else + addr = PAGE_ALIGN(mm->free_area_cache); + for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { /* At this point: (!vma || addr < vma->vm_end). */ - if (TASK_SIZE - len < addr) { + if (unlikely(TASK_SIZE - len < addr)) { /* * Start a new search - just in case we missed * some holes. @@ -104,7 +119,7 @@ } return -ENOMEM; } - if (!vma || addr + len <= vma->vm_start) { + if (likely(!vma || addr + len <= vma->vm_start)) { /* * Remember the place where we stopped the search: */ @@ -115,11 +130,10 @@ mm->cached_hole_size = vma->vm_start - addr; addr = vma->vm_end; - if (!(flags & MAP_PRIVATE)) - addr = COLOUR_ALIGN(addr); + if (do_colour_align) + addr = COLOUR_ALIGN(addr, pgoff); } } -#endif static inline long do_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
diff --git a/arch/sh/kernel/syscalls.S b/arch/sh/kernel/syscalls.S new file mode 100644 index 0000000..768334e --- /dev/null +++ b/arch/sh/kernel/syscalls.S
@@ -0,0 +1,353 @@ +/* + * arch/sh/kernel/syscalls.S + * + * System call table for SuperH + * + * Copyright (C) 1999, 2000, 2002 Niibe Yutaka + * Copyright (C) 2003 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + */ +#include <linux/sys.h> +#include <linux/linkage.h> + +#if !defined(CONFIG_NFSD) && !defined(CONFIG_NFSD_MODULE) +#define sys_nfsservctl sys_ni_syscall +#endif + +#if !defined(CONFIG_MMU) +#define sys_madvise sys_ni_syscall +#define sys_readahead sys_ni_syscall +#define sys_mprotect sys_ni_syscall +#define sys_msync sys_ni_syscall +#define sys_mlock sys_ni_syscall +#define sys_munlock sys_ni_syscall +#define sys_mlockall sys_ni_syscall +#define sys_munlockall sys_ni_syscall +#define sys_mremap sys_ni_syscall +#define sys_mincore sys_ni_syscall +#define sys_remap_file_pages sys_ni_syscall +#endif + + .data +ENTRY(sys_call_table) + .long sys_restart_syscall /* 0 - old "setup()" system call*/ + .long sys_exit + .long sys_fork + .long sys_read + .long sys_write + .long sys_open /* 5 */ + .long sys_close + .long sys_waitpid + .long sys_creat + .long sys_link + .long sys_unlink /* 10 */ + .long sys_execve + .long sys_chdir + .long sys_time + .long sys_mknod + .long sys_chmod /* 15 */ + .long sys_lchown16 + .long sys_ni_syscall /* old break syscall holder */ + .long sys_stat + .long sys_lseek + .long sys_getpid /* 20 */ + .long sys_mount + .long sys_oldumount + .long sys_setuid16 + .long sys_getuid16 + .long sys_stime /* 25 */ + .long sys_ptrace + .long sys_alarm + .long sys_fstat + .long sys_pause + .long sys_utime /* 30 */ + .long sys_ni_syscall /* old stty syscall holder */ + .long sys_ni_syscall /* old gtty syscall holder */ + .long sys_access + .long sys_nice + .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ + .long sys_sync + .long sys_kill + .long sys_rename + .long sys_mkdir + .long sys_rmdir /* 40 */ + .long sys_dup + .long sys_pipe + .long sys_times + .long sys_ni_syscall /* old prof syscall holder */ + .long sys_brk /* 45 */ + .long sys_setgid16 + .long sys_getgid16 + .long sys_signal + .long sys_geteuid16 + .long sys_getegid16 /* 50 */ + .long sys_acct + .long sys_umount /* recycled never used phys() */ + .long sys_ni_syscall /* old lock syscall holder */ + .long sys_ioctl + .long sys_fcntl /* 55 */ + .long sys_ni_syscall /* old mpx syscall holder */ + .long sys_setpgid + .long sys_ni_syscall /* old ulimit syscall holder */ + .long sys_ni_syscall /* sys_olduname */ + .long sys_umask /* 60 */ + .long sys_chroot + .long sys_ustat + .long sys_dup2 + .long sys_getppid + .long sys_getpgrp /* 65 */ + .long sys_setsid + .long sys_sigaction + .long sys_sgetmask + .long sys_ssetmask + .long sys_setreuid16 /* 70 */ + .long sys_setregid16 + .long sys_sigsuspend + .long sys_sigpending + .long sys_sethostname + .long sys_setrlimit /* 75 */ + .long sys_old_getrlimit + .long sys_getrusage + .long sys_gettimeofday + .long sys_settimeofday + .long sys_getgroups16 /* 80 */ + .long sys_setgroups16 + .long sys_ni_syscall /* sys_oldselect */ + .long sys_symlink + .long sys_lstat + .long sys_readlink /* 85 */ + .long sys_uselib + .long sys_swapon + .long sys_reboot + .long old_readdir + .long old_mmap /* 90 */ + .long sys_munmap + .long sys_truncate + .long sys_ftruncate + .long sys_fchmod + .long sys_fchown16 /* 95 */ + .long sys_getpriority + .long sys_setpriority + .long sys_ni_syscall /* old profil syscall holder */ + .long sys_statfs + .long sys_fstatfs /* 100 */ + .long sys_ni_syscall /* ioperm */ + .long sys_socketcall + .long sys_syslog + .long sys_setitimer + .long sys_getitimer /* 105 */ + .long sys_newstat + .long sys_newlstat + .long sys_newfstat + .long sys_uname + .long sys_ni_syscall /* 110 */ /* iopl */ + .long sys_vhangup + .long sys_ni_syscall /* idle */ + .long sys_ni_syscall /* vm86old */ + .long sys_wait4 + .long sys_swapoff /* 115 */ + .long sys_sysinfo + .long sys_ipc + .long sys_fsync + .long sys_sigreturn + .long sys_clone /* 120 */ + .long sys_setdomainname + .long sys_newuname + .long sys_ni_syscall /* sys_modify_ldt */ + .long sys_adjtimex + .long sys_mprotect /* 125 */ + .long sys_sigprocmask + .long sys_ni_syscall /* old "create_module" */ + .long sys_init_module + .long sys_delete_module + .long sys_ni_syscall /* 130: old "get_kernel_syms" */ + .long sys_quotactl + .long sys_getpgid + .long sys_fchdir + .long sys_bdflush + .long sys_sysfs /* 135 */ + .long sys_personality + .long sys_ni_syscall /* for afs_syscall */ + .long sys_setfsuid16 + .long sys_setfsgid16 + .long sys_llseek /* 140 */ + .long sys_getdents + .long sys_select + .long sys_flock + .long sys_msync + .long sys_readv /* 145 */ + .long sys_writev + .long sys_getsid + .long sys_fdatasync + .long sys_sysctl + .long sys_mlock /* 150 */ + .long sys_munlock + .long sys_mlockall + .long sys_munlockall + .long sys_sched_setparam + .long sys_sched_getparam /* 155 */ + .long sys_sched_setscheduler + .long sys_sched_getscheduler + .long sys_sched_yield + .long sys_sched_get_priority_max + .long sys_sched_get_priority_min /* 160 */ + .long sys_sched_rr_get_interval + .long sys_nanosleep + .long sys_mremap + .long sys_setresuid16 + .long sys_getresuid16 /* 165 */ + .long sys_ni_syscall /* vm86 */ + .long sys_ni_syscall /* old "query_module" */ + .long sys_poll + .long sys_nfsservctl + .long sys_setresgid16 /* 170 */ + .long sys_getresgid16 + .long sys_prctl + .long sys_rt_sigreturn + .long sys_rt_sigaction + .long sys_rt_sigprocmask /* 175 */ + .long sys_rt_sigpending + .long sys_rt_sigtimedwait + .long sys_rt_sigqueueinfo + .long sys_rt_sigsuspend + .long sys_pread_wrapper /* 180 */ + .long sys_pwrite_wrapper + .long sys_chown16 + .long sys_getcwd + .long sys_capget + .long sys_capset /* 185 */ + .long sys_sigaltstack + .long sys_sendfile + .long sys_ni_syscall /* streams1 */ + .long sys_ni_syscall /* streams2 */ + .long sys_vfork /* 190 */ + .long sys_getrlimit + .long sys_mmap2 + .long sys_truncate64 + .long sys_ftruncate64 + .long sys_stat64 /* 195 */ + .long sys_lstat64 + .long sys_fstat64 + .long sys_lchown + .long sys_getuid + .long sys_getgid /* 200 */ + .long sys_geteuid + .long sys_getegid + .long sys_setreuid + .long sys_setregid + .long sys_getgroups /* 205 */ + .long sys_setgroups + .long sys_fchown + .long sys_setresuid + .long sys_getresuid + .long sys_setresgid /* 210 */ + .long sys_getresgid + .long sys_chown + .long sys_setuid + .long sys_setgid + .long sys_setfsuid /* 215 */ + .long sys_setfsgid + .long sys_pivot_root + .long sys_mincore + .long sys_madvise + .long sys_getdents64 /* 220 */ + .long sys_fcntl64 + .long sys_ni_syscall /* reserved for TUX */ + .long sys_ni_syscall /* Reserved for Security */ + .long sys_gettid + .long sys_readahead /* 225 */ + .long sys_setxattr + .long sys_lsetxattr + .long sys_fsetxattr + .long sys_getxattr + .long sys_lgetxattr /* 230 */ + .long sys_fgetxattr + .long sys_listxattr + .long sys_llistxattr + .long sys_flistxattr + .long sys_removexattr /* 235 */ + .long sys_lremovexattr + .long sys_fremovexattr + .long sys_tkill + .long sys_sendfile64 + .long sys_futex /* 240 */ + .long sys_sched_setaffinity + .long sys_sched_getaffinity + .long sys_ni_syscall + .long sys_ni_syscall + .long sys_io_setup /* 245 */ + .long sys_io_destroy + .long sys_io_getevents + .long sys_io_submit + .long sys_io_cancel + .long sys_fadvise64 /* 250 */ + .long sys_ni_syscall + .long sys_exit_group + .long sys_lookup_dcookie + .long sys_epoll_create + .long sys_epoll_ctl /* 255 */ + .long sys_epoll_wait + .long sys_remap_file_pages + .long sys_set_tid_address + .long sys_timer_create + .long sys_timer_settime /* 260 */ + .long sys_timer_gettime + .long sys_timer_getoverrun + .long sys_timer_delete + .long sys_clock_settime + .long sys_clock_gettime /* 265 */ + .long sys_clock_getres + .long sys_clock_nanosleep + .long sys_statfs64 + .long sys_fstatfs64 + .long sys_tgkill /* 270 */ + .long sys_utimes + .long sys_fadvise64_64_wrapper + .long sys_ni_syscall /* Reserved for vserver */ + .long sys_ni_syscall /* Reserved for mbind */ + .long sys_ni_syscall /* 275 - get_mempolicy */ + .long sys_ni_syscall /* set_mempolicy */ + .long sys_mq_open + .long sys_mq_unlink + .long sys_mq_timedsend + .long sys_mq_timedreceive /* 280 */ + .long sys_mq_notify + .long sys_mq_getsetattr + .long sys_kexec_load + .long sys_waitid + .long sys_ni_syscall /* 285 */ + .long sys_add_key + .long sys_request_key + .long sys_keyctl + .long sys_ioprio_set + .long sys_ioprio_get /* 290 */ + .long sys_inotify_init + .long sys_inotify_add_watch + .long sys_inotify_rm_watch + .long sys_migrate_pages + .long sys_openat /* 295 */ + .long sys_mkdirat + .long sys_mknodat + .long sys_fchownat + .long sys_futimesat + .long sys_fstatat64 /* 300 */ + .long sys_unlinkat + .long sys_renameat + .long sys_linkat + .long sys_symlinkat + .long sys_readlinkat /* 305 */ + .long sys_fchmodat + .long sys_faccessat + .long sys_pselect6 + .long sys_ppoll + .long sys_unshare /* 310 */ + .long sys_set_robust_list + .long sys_get_robust_list + .long sys_splice + .long sys_sync_file_range + .long sys_tee /* 315 */ + .long sys_vmsplice
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c index a1589f8..149d971 100644 --- a/arch/sh/kernel/time.c +++ b/arch/sh/kernel/time.c
@@ -3,13 +3,12 @@ * * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org> - * Copyright (C) 2002, 2003, 2004, 2005 Paul Mundt + * Copyright (C) 2002 - 2006 Paul Mundt * Copyright (C) 2002 M. R. Brown <mrbrown@linux-sh.org> * * Some code taken from i386 version. * Copyright (C) 1991, 1992, 1995 Linus Torvalds */ - #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> @@ -26,15 +25,20 @@ DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL(rtc_lock); -/* XXX: Can we initialize this in a routine somewhere? Dreamcast doesn't want - * these routines anywhere... */ -#ifdef CONFIG_SH_RTC -void (*rtc_get_time)(struct timespec *) = sh_rtc_gettimeofday; -int (*rtc_set_time)(const time_t) = sh_rtc_settimeofday; -#else -void (*rtc_get_time)(struct timespec *); -int (*rtc_set_time)(const time_t); -#endif +/* Dummy RTC ops */ +static void null_rtc_get_time(struct timespec *tv) +{ + tv->tv_sec = mktime(2000, 1, 1, 0, 0, 0); + tv->tv_nsec = 0; +} + +static int null_rtc_set_time(const time_t secs) +{ + return 0; +} + +void (*rtc_sh_get_time)(struct timespec *) = null_rtc_get_time; +int (*rtc_sh_set_time)(const time_t) = null_rtc_set_time; /* * Scheduler clock - returns current time in nanosec units. @@ -70,7 +74,6 @@ tv->tv_sec = sec; tv->tv_usec = usec; } - EXPORT_SYMBOL(do_gettimeofday); int do_settimeofday(struct timespec *tv) @@ -103,7 +106,6 @@ return 0; } - EXPORT_SYMBOL(do_settimeofday); /* last time the RTC clock got updated */ @@ -135,7 +137,7 @@ xtime.tv_sec > last_rtc_update + 660 && (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 && (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) { - if (rtc_set_time(xtime.tv_sec) == 0) + if (rtc_sh_set_time(xtime.tv_sec) == 0) last_rtc_update = xtime.tv_sec; else /* do it again in 60s */ @@ -143,8 +145,33 @@ } } +#ifdef CONFIG_PM +int timer_suspend(struct sys_device *dev, pm_message_t state) +{ + struct sys_timer *sys_timer = container_of(dev, struct sys_timer, dev); + + sys_timer->ops->stop(); + + return 0; +} + +int timer_resume(struct sys_device *dev) +{ + struct sys_timer *sys_timer = container_of(dev, struct sys_timer, dev); + + sys_timer->ops->start(); + + return 0; +} +#else +#define timer_suspend NULL +#define timer_resume NULL +#endif + static struct sysdev_class timer_sysclass = { set_kset_name("timer"), + .suspend = timer_suspend, + .resume = timer_resume, }; static int __init timer_init_sysfs(void) @@ -156,7 +183,6 @@ sys_timer->dev.cls = &timer_sysclass; return sysdev_register(&sys_timer->dev); } - device_initcall(timer_init_sysfs); void (*board_time_init)(void); @@ -168,15 +194,9 @@ clk_init(); - if (rtc_get_time) { - rtc_get_time(&xtime); - } else { - xtime.tv_sec = mktime(2000, 1, 1, 0, 0, 0); - xtime.tv_nsec = 0; - } - - set_normalized_timespec(&wall_to_monotonic, - -xtime.tv_sec, -xtime.tv_nsec); + rtc_sh_get_time(&xtime); + set_normalized_timespec(&wall_to_monotonic, + -xtime.tv_sec, -xtime.tv_nsec); /* * Find the timer to use as the system timer, it will be
diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c index d4212ad..205816f 100644 --- a/arch/sh/kernel/timers/timer-tmu.c +++ b/arch/sh/kernel/timers/timer-tmu.c
@@ -132,17 +132,17 @@ ctrl_outl(0xffffffff, TMU0_TCOR); ctrl_outl(0xffffffff, TMU0_TCNT); - rtc_get_time(&ts2); + rtc_sh_get_time(&ts2); do { - rtc_get_time(&ts1); + rtc_sh_get_time(&ts1); } while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec); /* actually start the timer */ ctrl_outb(TMU_TSTR_INIT, TMU_TSTR); do { - rtc_get_time(&ts2); + rtc_sh_get_time(&ts2); } while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec); freq = 0xffffffff - ctrl_inl(TMU0_TCNT); @@ -188,6 +188,18 @@ .ops = &tmu_clk_ops, }; +static int tmu_timer_start(void) +{ + ctrl_outb(TMU_TSTR_INIT, TMU_TSTR); + return 0; +} + +static int tmu_timer_stop(void) +{ + ctrl_outb(0, TMU_TSTR); + return 0; +} + static int tmu_timer_init(void) { unsigned long interval; @@ -197,7 +209,7 @@ tmu0_clk.parent = clk_get("module_clk"); /* Start TMU0 */ - ctrl_outb(0, TMU_TSTR); + tmu_timer_stop(); #if !defined(CONFIG_CPU_SUBTYPE_SH7300) && !defined(CONFIG_CPU_SUBTYPE_SH7760) ctrl_outb(TMU_TOCR_INIT, TMU_TOCR); #endif @@ -211,13 +223,15 @@ ctrl_outl(interval, TMU0_TCOR); ctrl_outl(interval, TMU0_TCNT); - ctrl_outb(TMU_TSTR_INIT, TMU_TSTR); + tmu_timer_start(); return 0; } struct sys_timer_ops tmu_timer_ops = { .init = tmu_timer_init, + .start = tmu_timer_start, + .stop = tmu_timer_stop, .get_frequency = tmu_timer_get_frequency, .get_offset = tmu_timer_get_offset, };
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c index d9db118..c2c597e 100644 --- a/arch/sh/kernel/traps.c +++ b/arch/sh/kernel/traps.c
@@ -36,40 +36,15 @@ #ifdef CONFIG_SH_KGDB #include <asm/kgdb.h> -#define CHK_REMOTE_DEBUG(regs) \ -{ \ - if ((kgdb_debug_hook != (kgdb_debug_hook_t *) NULL) && (!user_mode(regs))) \ - { \ - (*kgdb_debug_hook)(regs); \ - } \ +#define CHK_REMOTE_DEBUG(regs) \ +{ \ + if (kgdb_debug_hook && !user_mode(regs))\ + (*kgdb_debug_hook)(regs); \ } #else #define CHK_REMOTE_DEBUG(regs) #endif -#define DO_ERROR(trapnr, signr, str, name, tsk) \ -asmlinkage void do_##name(unsigned long r4, unsigned long r5, \ - unsigned long r6, unsigned long r7, \ - struct pt_regs regs) \ -{ \ - unsigned long error_code; \ - \ - /* Check if it's a DSP instruction */ \ - if (is_dsp_inst(®s)) { \ - /* Enable DSP mode, and restart instruction. */ \ - regs.sr |= SR_DSP; \ - return; \ - } \ - \ - asm volatile("stc r2_bank, %0": "=r" (error_code)); \ - local_irq_enable(); \ - tsk->thread.error_code = error_code; \ - tsk->thread.trap_no = trapnr; \ - CHK_REMOTE_DEBUG(®s); \ - force_sig(signr, tsk); \ - die_if_no_fixup(str,®s,error_code); \ -} - #ifdef CONFIG_CPU_SH2 #define TRAP_RESERVED_INST 4 #define TRAP_ILLEGAL_SLOT_INST 6 @@ -86,7 +61,7 @@ #define VMALLOC_OFFSET (8*1024*1024) #define MODULE_RANGE (8*1024*1024) -spinlock_t die_lock; +DEFINE_SPINLOCK(die_lock); void die(const char * str, struct pt_regs * regs, long err) { @@ -575,8 +550,117 @@ #define is_dsp_inst(regs) (0) #endif /* CONFIG_SH_DSP */ -DO_ERROR(TRAP_RESERVED_INST, SIGILL, "reserved instruction", reserved_inst, current) -DO_ERROR(TRAP_ILLEGAL_SLOT_INST, SIGILL, "illegal slot instruction", illegal_slot_inst, current) +extern int do_fpu_inst(unsigned short, struct pt_regs*); + +asmlinkage void do_reserved_inst(unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7, + struct pt_regs regs) +{ + unsigned long error_code; + struct task_struct *tsk = current; + +#ifdef CONFIG_SH_FPU_EMU + unsigned short inst; + int err; + + get_user(inst, (unsigned short*)regs.pc); + + err = do_fpu_inst(inst, ®s); + if (!err) { + regs.pc += 2; + return; + } + /* not a FPU inst. */ +#endif + +#ifdef CONFIG_SH_DSP + /* Check if it's a DSP instruction */ + if (is_dsp_inst(®s)) { + /* Enable DSP mode, and restart instruction. */ + regs.sr |= SR_DSP; + return; + } +#endif + + asm volatile("stc r2_bank, %0": "=r" (error_code)); + local_irq_enable(); + tsk->thread.error_code = error_code; + tsk->thread.trap_no = TRAP_RESERVED_INST; + CHK_REMOTE_DEBUG(®s); + force_sig(SIGILL, tsk); + die_if_no_fixup("reserved instruction", ®s, error_code); +} + +#ifdef CONFIG_SH_FPU_EMU +static int emulate_branch(unsigned short inst, struct pt_regs* regs) +{ + /* + * bfs: 8fxx: PC+=d*2+4; + * bts: 8dxx: PC+=d*2+4; + * bra: axxx: PC+=D*2+4; + * bsr: bxxx: PC+=D*2+4 after PR=PC+4; + * braf:0x23: PC+=Rn*2+4; + * bsrf:0x03: PC+=Rn*2+4 after PR=PC+4; + * jmp: 4x2b: PC=Rn; + * jsr: 4x0b: PC=Rn after PR=PC+4; + * rts: 000b: PC=PR; + */ + if ((inst & 0xfd00) == 0x8d00) { + regs->pc += SH_PC_8BIT_OFFSET(inst); + return 0; + } + + if ((inst & 0xe000) == 0xa000) { + regs->pc += SH_PC_12BIT_OFFSET(inst); + return 0; + } + + if ((inst & 0xf0df) == 0x0003) { + regs->pc += regs->regs[(inst & 0x0f00) >> 8] + 4; + return 0; + } + + if ((inst & 0xf0df) == 0x400b) { + regs->pc = regs->regs[(inst & 0x0f00) >> 8]; + return 0; + } + + if ((inst & 0xffff) == 0x000b) { + regs->pc = regs->pr; + return 0; + } + + return 1; +} +#endif + +asmlinkage void do_illegal_slot_inst(unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7, + struct pt_regs regs) +{ + unsigned long error_code; + struct task_struct *tsk = current; +#ifdef CONFIG_SH_FPU_EMU + unsigned short inst; + + get_user(inst, (unsigned short *)regs.pc + 1); + if (!do_fpu_inst(inst, ®s)) { + get_user(inst, (unsigned short *)regs.pc); + if (!emulate_branch(inst, ®s)) + return; + /* fault in branch.*/ + } + /* not a FPU inst. */ +#endif + + asm volatile("stc r2_bank, %0": "=r" (error_code)); + local_irq_enable(); + tsk->thread.error_code = error_code; + tsk->thread.trap_no = TRAP_RESERVED_INST; + CHK_REMOTE_DEBUG(®s); + force_sig(SIGILL, tsk); + die_if_no_fixup("illegal slot instruction", ®s, error_code); +} asmlinkage void do_exception_error(unsigned long r4, unsigned long r5, unsigned long r6, unsigned long r7, @@ -634,14 +718,16 @@ exception_handling_table[TRAP_ILLEGAL_SLOT_INST] = (void *)do_illegal_slot_inst; -#ifdef CONFIG_CPU_SH4 - if (!(cpu_data->flags & CPU_HAS_FPU)) { - /* For SH-4 lacking an FPU, treat floating point instructions - as reserved. */ - /* entry 64 corresponds to EXPEVT=0x800 */ - exception_handling_table[64] = (void *)do_reserved_inst; - exception_handling_table[65] = (void *)do_illegal_slot_inst; - } +#if defined(CONFIG_CPU_SH4) && !defined(CONFIG_SH_FPU) || \ + defined(CONFIG_SH_FPU_EMU) + /* + * For SH-4 lacking an FPU, treat floating point instructions as + * reserved. They'll be handled in the math-emu case, or faulted on + * otherwise. + */ + /* entry 64 corresponds to EXPEVT=0x800 */ + exception_handling_table[64] = (void *)do_reserved_inst; + exception_handling_table[65] = (void *)do_illegal_slot_inst; #endif /* Setup VBR for boot cpu */ @@ -655,20 +741,12 @@ unsigned long module_end = VMALLOC_END; int i = 1; - if (tsk && !sp) { + if (!tsk) + tsk = current; + if (tsk == current) + sp = (unsigned long *)current_stack_pointer; + else sp = (unsigned long *)tsk->thread.sp; - } - - if (!sp) { - __asm__ __volatile__ ( - "mov r15, %0\n\t" - "stc r7_bank, %1\n\t" - : "=r" (module_start), - "=r" (module_end) - ); - - sp = (unsigned long *)module_start; - } stack = sp;
diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S index 95fdd91..5eb9309 100644 --- a/arch/sh/kernel/vmlinux.lds.S +++ b/arch/sh/kernel/vmlinux.lds.S
@@ -2,6 +2,7 @@ * ld script to make SuperH Linux kernel * Written by Niibe Yutaka */ +#include <asm/thread_info.h> #include <asm-generic/vmlinux.lds.h> #ifdef CONFIG_CPU_LITTLE_ENDIAN @@ -13,7 +14,7 @@ ENTRY(_start) SECTIONS { - . = 0x80000000 + CONFIG_MEMORY_START + CONFIG_ZERO_PAGE_OFFSET; + . = CONFIG_PAGE_OFFSET + CONFIG_MEMORY_START + CONFIG_ZERO_PAGE_OFFSET; _text = .; /* Text and read-only data */ text = .; /* Text and read-only data */ .empty_zero_page : { @@ -40,16 +41,16 @@ *(.data) /* Align the initial ramdisk image (INITRD) on page boundaries. */ - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __rd_start = .; *(.initrd) - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __rd_end = .; CONSTRUCTORS } - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); .data.page_aligned : { *(.data.idt) } . = ALIGN(32); @@ -60,12 +61,10 @@ _edata = .; /* End of data section */ - . = ALIGN(8192); /* init_task */ + . = ALIGN(THREAD_SIZE); /* init_task */ .data.init_task : { *(.data.init_task) } - /* stack */ - .stack : { stack = .; _stack = .; } - . = ALIGN(4096); /* Init code and data */ + . = ALIGN(PAGE_SIZE); /* Init code and data */ __init_begin = .; _sinittext = .; .init.text : { *(.init.text) } @@ -96,7 +95,7 @@ __machvec_start = .; .init.machvec : { *(.init.machvec) } __machvec_end = .; - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __init_end = .; . = ALIGN(4);
diff --git a/arch/sh/kernel/vsyscall/Makefile b/arch/sh/kernel/vsyscall/Makefile new file mode 100644 index 0000000..4bbce1c --- /dev/null +++ b/arch/sh/kernel/vsyscall/Makefile
@@ -0,0 +1,36 @@ +obj-y += vsyscall.o vsyscall-syscall.o + +$(obj)/vsyscall-syscall.o: \ + $(foreach F,trapa,$(obj)/vsyscall-$F.so) + +# Teach kbuild about targets +targets += $(foreach F,trapa,vsyscall-$F.o vsyscall-$F.so) +targets += vsyscall-note.o vsyscall.lds + +# The DSO images are built using a special linker script +quiet_cmd_syscall = SYSCALL $@ + cmd_syscall = $(CC) -nostdlib $(SYSCFLAGS_$(@F)) \ + -Wl,-T,$(filter-out FORCE,$^) -o $@ + +export CPPFLAGS_vsyscall.lds += -P -C -Ush + +vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \ + $(call ld-option, -Wl$(comma)--hash-style=sysv) + +SYSCFLAGS_vsyscall-trapa.so = $(vsyscall-flags) + +$(obj)/vsyscall-trapa.so: \ +$(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE + $(call if_changed,syscall) + +# We also create a special relocatable object that should mirror the symbol +# table and layout of the linked DSO. With ld -R we can then refer to +# these symbols in the kernel code rather than hand-coded addresses. +extra-y += vsyscall-syms.o +$(obj)/built-in.o: $(obj)/vsyscall-syms.o +$(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o + +SYSCFLAGS_vsyscall-syms.o = -r +$(obj)/vsyscall-syms.o: $(src)/vsyscall.lds \ + $(obj)/vsyscall-trapa.o $(obj)/vsyscall-note.o FORCE + $(call if_changed,syscall)
diff --git a/arch/sh/kernel/vsyscall/vsyscall-note.S b/arch/sh/kernel/vsyscall/vsyscall-note.S new file mode 100644 index 0000000..d4b5be4 --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall-note.S
@@ -0,0 +1,25 @@ +/* + * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text. + * Here we can supply some information useful to userland. + */ + +#include <linux/uts.h> +#include <linux/version.h> + +#define ASM_ELF_NOTE_BEGIN(name, flags, vendor, type) \ + .section name, flags; \ + .balign 4; \ + .long 1f - 0f; /* name length */ \ + .long 3f - 2f; /* data length */ \ + .long type; /* note type */ \ +0: .asciz vendor; /* vendor name */ \ +1: .balign 4; \ +2: + +#define ASM_ELF_NOTE_END \ +3: .balign 4; /* pad out section */ \ + .previous + + ASM_ELF_NOTE_BEGIN(".note.kernel-version", "a", UTS_SYSNAME, 0) + .long LINUX_VERSION_CODE + ASM_ELF_NOTE_END
diff --git a/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S new file mode 100644 index 0000000..555a64f --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S
@@ -0,0 +1,39 @@ +#include <asm/unistd.h> + + .text + .balign 32 + .globl __kernel_sigreturn + .type __kernel_sigreturn,@function +__kernel_sigreturn: +.LSTART_sigreturn: + mov.w 1f, r3 + trapa #0x10 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + +1: .short __NR_sigreturn +.LEND_sigreturn: + .size __kernel_sigreturn,.-.LSTART_sigreturn + + .balign 32 + .globl __kernel_rt_sigreturn + .type __kernel_rt_sigreturn,@function +__kernel_rt_sigreturn: +.LSTART_rt_sigreturn: + mov.w 1f, r3 + trapa #0x10 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + or r0, r0 + +1: .short __NR_rt_sigreturn +.LEND_rt_sigreturn: + .size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn + + .section .eh_frame,"a",@progbits + .previous
diff --git a/arch/sh/kernel/vsyscall/vsyscall-syscall.S b/arch/sh/kernel/vsyscall/vsyscall-syscall.S new file mode 100644 index 0000000..c2ac7f0 --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall-syscall.S
@@ -0,0 +1,10 @@ +#include <linux/init.h> + +__INITDATA + + .globl vsyscall_trapa_start, vsyscall_trapa_end +vsyscall_trapa_start: + .incbin "arch/sh/kernel/vsyscall/vsyscall-trapa.so" +vsyscall_trapa_end: + +__FINIT
diff --git a/arch/sh/kernel/vsyscall/vsyscall-trapa.S b/arch/sh/kernel/vsyscall/vsyscall-trapa.S new file mode 100644 index 0000000..3b6eb34 --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall-trapa.S
@@ -0,0 +1,42 @@ + .text + .globl __kernel_vsyscall + .type __kernel_vsyscall,@function +__kernel_vsyscall: +.LSTART_vsyscall: + /* XXX: We'll have to do something here once we opt to use the vDSO + * page for something other than the signal trampoline.. as well as + * fill out .eh_frame -- PFM. */ +.LEND_vsyscall: + .size __kernel_vsyscall,.-.LSTART_vsyscall + .previous + + .section .eh_frame,"a",@progbits +.LCIE: + .ualong .LCIE_end - .LCIE_start +.LCIE_start: + .ualong 0 /* CIE ID */ + .byte 0x1 /* Version number */ + .string "zRS" /* NUL-terminated augmentation string */ + .uleb128 0x1 /* Code alignment factor */ + .sleb128 -4 /* Data alignment factor */ + .byte 0x11 /* Return address register column */ + /* Augmentation length and data (none) */ + .byte 0xc /* DW_CFA_def_cfa */ + .uleb128 0xf /* r15 */ + .uleb128 0x0 /* offset 0 */ + + .align 2 +.LCIE_end: + + .ualong .LFDE_end-.LFDE_start /* Length FDE */ +.LFDE_start: + .ualong .LCIE /* CIE pointer */ + .ualong .LSTART_vsyscall-. /* start address */ + .ualong .LEND_vsyscall-.LSTART_vsyscall + .uleb128 0 + .align 2 +.LFDE_end: + .previous + +/* Get the common code for the sigreturn entry points */ +#include "vsyscall-sigreturn.S"
diff --git a/arch/sh/kernel/vsyscall/vsyscall.c b/arch/sh/kernel/vsyscall/vsyscall.c new file mode 100644 index 0000000..075d6cc --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall.c
@@ -0,0 +1,150 @@ +/* + * arch/sh/kernel/vsyscall.c + * + * Copyright (C) 2006 Paul Mundt + * + * vDSO randomization + * Copyright(C) 2005-2006, Red Hat, Inc., Ingo Molnar + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/gfp.h> +#include <linux/module.h> +#include <linux/elf.h> + +/* + * Should the kernel map a VDSO page into processes and pass its + * address down to glibc upon exec()? + */ +unsigned int __read_mostly vdso_enabled = 1; +EXPORT_SYMBOL_GPL(vdso_enabled); + +static int __init vdso_setup(char *s) +{ + vdso_enabled = simple_strtoul(s, NULL, 0); + return 1; +} +__setup("vdso=", vdso_setup); + +/* + * These symbols are defined by vsyscall.o to mark the bounds + * of the ELF DSO images included therein. + */ +extern const char vsyscall_trapa_start, vsyscall_trapa_end; +static void *syscall_page; + +int __init vsyscall_init(void) +{ + syscall_page = (void *)get_zeroed_page(GFP_ATOMIC); + + /* + * XXX: Map this page to a fixmap entry if we get around + * to adding the page to ELF core dumps + */ + + memcpy(syscall_page, + &vsyscall_trapa_start, + &vsyscall_trapa_end - &vsyscall_trapa_start); + + return 0; +} + +static struct page *syscall_vma_nopage(struct vm_area_struct *vma, + unsigned long address, int *type) +{ + unsigned long offset = address - vma->vm_start; + struct page *page; + + if (address < vma->vm_start || address > vma->vm_end) + return NOPAGE_SIGBUS; + + page = virt_to_page(syscall_page + offset); + + get_page(page); + + return page; +} + +/* Prevent VMA merging */ +static void syscall_vma_close(struct vm_area_struct *vma) +{ +} + +static struct vm_operations_struct syscall_vm_ops = { + .nopage = syscall_vma_nopage, + .close = syscall_vma_close, +}; + +/* Setup a VMA at program startup for the vsyscall page */ +int arch_setup_additional_pages(struct linux_binprm *bprm, + int executable_stack) +{ + struct vm_area_struct *vma; + struct mm_struct *mm = current->mm; + unsigned long addr; + int ret; + + down_write(&mm->mmap_sem); + addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0); + if (IS_ERR_VALUE(addr)) { + ret = addr; + goto up_fail; + } + + vma = kmem_cache_zalloc(vm_area_cachep, SLAB_KERNEL); + if (!vma) { + ret = -ENOMEM; + goto up_fail; + } + + vma->vm_start = addr; + vma->vm_end = addr + PAGE_SIZE; + /* MAYWRITE to allow gdb to COW and set breakpoints */ + vma->vm_flags = VM_READ|VM_EXEC|VM_MAYREAD|VM_MAYEXEC|VM_MAYWRITE; + vma->vm_flags |= mm->def_flags; + vma->vm_page_prot = protection_map[vma->vm_flags & 7]; + vma->vm_ops = &syscall_vm_ops; + vma->vm_mm = mm; + + ret = insert_vm_struct(mm, vma); + if (unlikely(ret)) { + kmem_cache_free(vm_area_cachep, vma); + goto up_fail; + } + + current->mm->context.vdso = (void *)addr; + + mm->total_vm++; +up_fail: + up_write(&mm->mmap_sem); + return ret; +} + +const char *arch_vma_name(struct vm_area_struct *vma) +{ + if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso) + return "[vdso]"; + + return NULL; +} + +struct vm_area_struct *get_gate_vma(struct task_struct *task) +{ + return NULL; +} + +int in_gate_area(struct task_struct *task, unsigned long address) +{ + return 0; +} + +int in_gate_area_no_task(unsigned long address) +{ + return 0; +}
diff --git a/arch/sh/kernel/vsyscall/vsyscall.lds.S b/arch/sh/kernel/vsyscall/vsyscall.lds.S new file mode 100644 index 0000000..b13c3d4 --- /dev/null +++ b/arch/sh/kernel/vsyscall/vsyscall.lds.S
@@ -0,0 +1,74 @@ +/* + * Linker script for vsyscall DSO. The vsyscall page is an ELF shared + * object prelinked to its virtual address, and with only one read-only + * segment (that fits in one page). This script controls its layout. + */ +#include <asm/asm-offsets.h> + +#ifdef CONFIG_CPU_LITTLE_ENDIAN +OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux") +#else +OUTPUT_FORMAT("elf32-shbig-linux", "elf32-shbig-linux", "elf32-shbig-linux") +#endif +OUTPUT_ARCH(sh) + +/* The ELF entry point can be used to set the AT_SYSINFO value. */ +ENTRY(__kernel_vsyscall); + +SECTIONS +{ + . = SIZEOF_HEADERS; + + .hash : { *(.hash) } :text + .gnu.hash : { *(.gnu.hash) } + .dynsym : { *(.dynsym) } + .dynstr : { *(.dynstr) } + .gnu.version : { *(.gnu.version) } + .gnu.version_d : { *(.gnu.version_d) } + .gnu.version_r : { *(.gnu.version_r) } + + /* This linker script is used both with -r and with -shared. + For the layouts to match, we need to skip more than enough + space for the dynamic symbol table et al. If this amount + is insufficient, ld -shared will barf. Just increase it here. */ + . = 0x400; + + .text : { *(.text) } :text =0x90909090 + .note : { *(.note.*) } :text :note + .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr + .eh_frame : { KEEP (*(.eh_frame)) } :text + .dynamic : { *(.dynamic) } :text :dynamic + .useless : { + *(.got.plt) *(.got) + *(.data .data.* .gnu.linkonce.d.*) + *(.dynbss) + *(.bss .bss.* .gnu.linkonce.b.*) + } :text +} + +/* + * We must supply the ELF program headers explicitly to get just one + * PT_LOAD segment, and set the flags explicitly to make segments read-only. + */ +PHDRS +{ + text PT_LOAD FILEHDR PHDRS FLAGS(5); /* PF_R|PF_X */ + dynamic PT_DYNAMIC FLAGS(4); /* PF_R */ + note PT_NOTE FLAGS(4); /* PF_R */ + eh_frame_hdr 0x6474e550; /* PT_GNU_EH_FRAME, but ld doesn't match the name */ +} + +/* + * This controls what symbols we export from the DSO. + */ +VERSION +{ + LINUX_2.6 { + global: + __kernel_vsyscall; + __kernel_sigreturn; + __kernel_rt_sigreturn; + + local: *; + }; +}
diff --git a/arch/sh/lib/checksum.S b/arch/sh/lib/checksum.S index 7c50dfe..cbdd0d4 100644 --- a/arch/sh/lib/checksum.S +++ b/arch/sh/lib/checksum.S
@@ -202,8 +202,9 @@ cmp/pz r6 ! Jump if we had at least two bytes. bt/s 1f clrt + add #2,r6 ! r6 was < 2. Deal with it. bra 4f - add #2,r6 ! r6 was < 2. Deal with it. + mov r6,r2 3: ! Handle different src and dest alignments. ! This is not common, so simple byte by byte copy will do.
diff --git a/arch/sh/lib/memcpy-sh4.S b/arch/sh/lib/memcpy-sh4.S index db6b736..560bc17 100644 --- a/arch/sh/lib/memcpy-sh4.S +++ b/arch/sh/lib/memcpy-sh4.S
@@ -727,8 +727,8 @@ mov.l @(0x04,r5), r11 ! 18 LS (latency=2) xtrct r9, r8 ! 48 EX - mov.w @(0x02,r5), r12 ! 18 LS (latency=2) - xtrct r10, r9 ! 48 EX + mov.l @(0x00,r5), r12 ! 18 LS (latency=2) + xtrct r10, r9 ! 48 EX movca.l r0,@r1 ! 40 LS (latency=3-7) add #-0x1c, r1 ! 50 EX
diff --git a/arch/sh/lib/memset.S b/arch/sh/lib/memset.S index 9567009..af91fe2 100644 --- a/arch/sh/lib/memset.S +++ b/arch/sh/lib/memset.S
@@ -29,6 +29,7 @@ bf/s 1b mov.b r5,@-r4 2: ! make VVVV + extu.b r5,r5 swap.b r5,r0 ! V0 or r0,r5 ! VV swap.w r5,r0 ! VV00
diff --git a/arch/sh/math-emu/Makefile b/arch/sh/math-emu/Makefile new file mode 100644 index 0000000..638b342c --- /dev/null +++ b/arch/sh/math-emu/Makefile
@@ -0,0 +1 @@ +obj-y := math.o
diff --git a/arch/sh/math-emu/math.c b/arch/sh/math-emu/math.c new file mode 100644 index 0000000..26b6046 --- /dev/null +++ b/arch/sh/math-emu/math.c
@@ -0,0 +1,624 @@ +/* + * arch/sh/math-emu/math.c + * + * Copyright (C) 2006 Takashi YOSHII <takasi-y@ops.dti.ne.jp> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/types.h> +#include <linux/sched.h> +#include <linux/signal.h> + +#include <asm/system.h> +#include <asm/uaccess.h> +#include <asm/processor.h> +#include <asm/io.h> + +#include "sfp-util.h" +#include <math-emu/soft-fp.h> +#include <math-emu/single.h> +#include <math-emu/double.h> + +#define FPUL (fregs->fpul) +#define FPSCR (fregs->fpscr) +#define FPSCR_RM (FPSCR&3) +#define FPSCR_DN ((FPSCR>>18)&1) +#define FPSCR_PR ((FPSCR>>19)&1) +#define FPSCR_SZ ((FPSCR>>20)&1) +#define FPSCR_FR ((FPSCR>>21)&1) +#define FPSCR_MASK 0x003fffffUL + +#define BANK(n) (n^(FPSCR_FR?16:0)) +#define FR ((unsigned long*)(fregs->fp_regs)) +#define FR0 (FR[BANK(0)]) +#define FRn (FR[BANK(n)]) +#define FRm (FR[BANK(m)]) +#define DR ((unsigned long long*)(fregs->fp_regs)) +#define DRn (DR[BANK(n)/2]) +#define DRm (DR[BANK(m)/2]) + +#define XREG(n) (n^16) +#define XFn (FR[BANK(XREG(n))]) +#define XFm (FR[BANK(XREG(m))]) +#define XDn (DR[BANK(XREG(n))/2]) +#define XDm (DR[BANK(XREG(m))/2]) + +#define R0 (regs->regs[0]) +#define Rn (regs->regs[n]) +#define Rm (regs->regs[m]) + +#define WRITE(d,a) ({if(put_user(d, (typeof (d)*)a)) return -EFAULT;}) +#define READ(d,a) ({if(get_user(d, (typeof (d)*)a)) return -EFAULT;}) + +#define PACK_S(r,f) FP_PACK_SP(&r,f) +#define UNPACK_S(f,r) FP_UNPACK_SP(f,&r) +#define PACK_D(r,f) \ + {u32 t[2]; FP_PACK_DP(t,f); ((u32*)&r)[0]=t[1]; ((u32*)&r)[1]=t[0];} +#define UNPACK_D(f,r) \ + {u32 t[2]; t[0]=((u32*)&r)[1]; t[1]=((u32*)&r)[0]; FP_UNPACK_DP(f,t);} + +// 2 args instructions. +#define BOTH_PRmn(op,x) \ + FP_DECL_EX; if(FPSCR_PR) op(D,x,DRm,DRn); else op(S,x,FRm,FRn); + +#define CMP_X(SZ,R,M,N) do{ \ + FP_DECL_##SZ(Fm); FP_DECL_##SZ(Fn); \ + UNPACK_##SZ(Fm, M); UNPACK_##SZ(Fn, N); \ + FP_CMP_##SZ(R, Fn, Fm, 2); }while(0) +#define EQ_X(SZ,R,M,N) do{ \ + FP_DECL_##SZ(Fm); FP_DECL_##SZ(Fn); \ + UNPACK_##SZ(Fm, M); UNPACK_##SZ(Fn, N); \ + FP_CMP_EQ_##SZ(R, Fn, Fm); }while(0) +#define CMP(OP) ({ int r; BOTH_PRmn(OP##_X,r); r; }) + +static int +fcmp_gt(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + if (CMP(CMP) > 0) + regs->sr |= 1; + else + regs->sr &= ~1; + + return 0; +} + +static int +fcmp_eq(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + if (CMP(CMP /*EQ*/) == 0) + regs->sr |= 1; + else + regs->sr &= ~1; + return 0; +} + +#define ARITH_X(SZ,OP,M,N) do{ \ + FP_DECL_##SZ(Fm); FP_DECL_##SZ(Fn); FP_DECL_##SZ(Fr); \ + UNPACK_##SZ(Fm, M); UNPACK_##SZ(Fn, N); \ + FP_##OP##_##SZ(Fr, Fn, Fm); \ + PACK_##SZ(N, Fr); }while(0) + +static int +fadd(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + BOTH_PRmn(ARITH_X, ADD); + return 0; +} + +static int +fsub(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + BOTH_PRmn(ARITH_X, SUB); + return 0; +} + +static int +fmul(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + BOTH_PRmn(ARITH_X, MUL); + return 0; +} + +static int +fdiv(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + BOTH_PRmn(ARITH_X, DIV); + return 0; +} + +static int +fmac(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + FP_DECL_EX; + FP_DECL_S(Fr); + FP_DECL_S(Ft); + FP_DECL_S(F0); + FP_DECL_S(Fm); + FP_DECL_S(Fn); + UNPACK_S(F0, FR0); + UNPACK_S(Fm, FRm); + UNPACK_S(Fn, FRn); + FP_MUL_S(Ft, Fm, F0); + FP_ADD_S(Fr, Fn, Ft); + PACK_S(FRn, Fr); + return 0; +} + +// to process fmov's extention (odd n for DR access XD). +#define FMOV_EXT(x) if(x&1) x+=16-1 + +static int +fmov_idx_reg(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(n); + READ(FRn, Rm + R0 + 4); + n++; + READ(FRn, Rm + R0); + } else { + READ(FRn, Rm + R0); + } + + return 0; +} + +static int +fmov_mem_reg(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(n); + READ(FRn, Rm + 4); + n++; + READ(FRn, Rm); + } else { + READ(FRn, Rm); + } + + return 0; +} + +static int +fmov_inc_reg(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(n); + READ(FRn, Rm + 4); + n++; + READ(FRn, Rm); + Rm += 8; + } else { + READ(FRn, Rm); + Rm += 4; + } + + return 0; +} + +static int +fmov_reg_idx(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(m); + WRITE(FRm, Rn + R0 + 4); + m++; + WRITE(FRm, Rn + R0); + } else { + WRITE(FRm, Rn + R0); + } + + return 0; +} + +static int +fmov_reg_mem(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(m); + WRITE(FRm, Rn + 4); + m++; + WRITE(FRm, Rn); + } else { + WRITE(FRm, Rn); + } + + return 0; +} + +static int +fmov_reg_dec(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(m); + Rn -= 8; + WRITE(FRm, Rn + 4); + m++; + WRITE(FRm, Rn); + } else { + Rn -= 4; + WRITE(FRm, Rn); + } + + return 0; +} + +static int +fmov_reg_reg(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, + int n) +{ + if (FPSCR_SZ) { + FMOV_EXT(m); + FMOV_EXT(n); + DRn = DRm; + } else { + FRn = FRm; + } + + return 0; +} + +static int +fnop_mn(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n) +{ + return -EINVAL; +} + +// 1 arg instructions. +#define NOTYETn(i) static int i(struct sh_fpu_soft_struct *fregs, int n) \ + { printk( #i " not yet done.\n"); return 0; } + +NOTYETn(ftrv) +NOTYETn(fsqrt) +NOTYETn(fipr) +NOTYETn(fsca) +NOTYETn(fsrra) + +#define EMU_FLOAT_X(SZ,N) do { \ + FP_DECL_##SZ(Fn); \ + FP_FROM_INT_##SZ(Fn, FPUL, 32, int); \ + PACK_##SZ(N, Fn); }while(0) +static int ffloat(struct sh_fpu_soft_struct *fregs, int n) +{ + FP_DECL_EX; + + if (FPSCR_PR) + EMU_FLOAT_X(D, DRn); + else + EMU_FLOAT_X(S, FRn); + + return 0; +} + +#define EMU_FTRC_X(SZ,N) do { \ + FP_DECL_##SZ(Fn); \ + UNPACK_##SZ(Fn, N); \ + FP_TO_INT_##SZ(FPUL, Fn, 32, 1); }while(0) +static int ftrc(struct sh_fpu_soft_struct *fregs, int n) +{ + FP_DECL_EX; + + if (FPSCR_PR) + EMU_FTRC_X(D, DRn); + else + EMU_FTRC_X(S, FRn); + + return 0; +} + +static int fcnvsd(struct sh_fpu_soft_struct *fregs, int n) +{ + FP_DECL_EX; + FP_DECL_S(Fn); + FP_DECL_D(Fr); + UNPACK_S(Fn, FPUL); + FP_CONV(D, S, 2, 1, Fr, Fn); + PACK_D(DRn, Fr); + return 0; +} + +static int fcnvds(struct sh_fpu_soft_struct *fregs, int n) +{ + FP_DECL_EX; + FP_DECL_D(Fn); + FP_DECL_S(Fr); + UNPACK_D(Fn, DRn); + FP_CONV(S, D, 1, 2, Fr, Fn); + PACK_S(FPUL, Fr); + return 0; +} + +static int fxchg(struct sh_fpu_soft_struct *fregs, int flag) +{ + FPSCR ^= flag; + return 0; +} + +static int fsts(struct sh_fpu_soft_struct *fregs, int n) +{ + FRn = FPUL; + return 0; +} + +static int flds(struct sh_fpu_soft_struct *fregs, int n) +{ + FPUL = FRn; + return 0; +} + +static int fneg(struct sh_fpu_soft_struct *fregs, int n) +{ + FRn ^= (1 << (_FP_W_TYPE_SIZE - 1)); + return 0; +} + +static int fabs(struct sh_fpu_soft_struct *fregs, int n) +{ + FRn &= ~(1 << (_FP_W_TYPE_SIZE - 1)); + return 0; +} + +static int fld0(struct sh_fpu_soft_struct *fregs, int n) +{ + FRn = 0; + return 0; +} + +static int fld1(struct sh_fpu_soft_struct *fregs, int n) +{ + FRn = (_FP_EXPBIAS_S << (_FP_FRACBITS_S - 1)); + return 0; +} + +static int fnop_n(struct sh_fpu_soft_struct *fregs, int n) +{ + return -EINVAL; +} + +/// Instruction decoders. + +static int id_fxfd(struct sh_fpu_soft_struct *, int); +static int id_fnxd(struct sh_fpu_soft_struct *, struct pt_regs *, int, int); + +static int (*fnxd[])(struct sh_fpu_soft_struct *, int) = { + fsts, flds, ffloat, ftrc, fneg, fabs, fsqrt, fsrra, + fld0, fld1, fcnvsd, fcnvds, fnop_n, fnop_n, fipr, id_fxfd +}; + +static int (*fnmx[])(struct sh_fpu_soft_struct *, struct pt_regs *, int, int) = { + fadd, fsub, fmul, fdiv, fcmp_eq, fcmp_gt, fmov_idx_reg, fmov_reg_idx, + fmov_mem_reg, fmov_inc_reg, fmov_reg_mem, fmov_reg_dec, + fmov_reg_reg, id_fnxd, fmac, fnop_mn}; + +static int id_fxfd(struct sh_fpu_soft_struct *fregs, int x) +{ + const int flag[] = { FPSCR_SZ, FPSCR_PR, FPSCR_FR, 0 }; + switch (x & 3) { + case 3: + fxchg(fregs, flag[x >> 2]); + break; + case 1: + ftrv(fregs, x - 1); + break; + default: + fsca(fregs, x); + } + return 0; +} + +static int +id_fnxd(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int x, int n) +{ + return (fnxd[x])(fregs, n); +} + +static int +id_fnmx(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, u16 code) +{ + int n = (code >> 8) & 0xf, m = (code >> 4) & 0xf, x = code & 0xf; + return (fnmx[x])(fregs, regs, m, n); +} + +static int +id_sys(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, u16 code) +{ + int n = ((code >> 8) & 0xf); + unsigned long *reg = (code & 0x0010) ? &FPUL : &FPSCR; + + switch (code & 0xf0ff) { + case 0x005a: + case 0x006a: + Rn = *reg; + break; + case 0x405a: + case 0x406a: + *reg = Rn; + break; + case 0x4052: + case 0x4062: + Rn -= 4; + WRITE(*reg, Rn); + break; + case 0x4056: + case 0x4066: + READ(*reg, Rn); + Rn += 4; + break; + default: + return -EINVAL; + } + + return 0; +} + +static int fpu_emulate(u16 code, struct sh_fpu_soft_struct *fregs, struct pt_regs *regs) +{ + if ((code & 0xf000) == 0xf000) + return id_fnmx(fregs, regs, code); + else + return id_sys(fregs, regs, code); +} + +/** + * denormal_to_double - Given denormalized float number, + * store double float + * + * @fpu: Pointer to sh_fpu_hard structure + * @n: Index to FP register + */ +static void denormal_to_double(struct sh_fpu_hard_struct *fpu, int n) +{ + unsigned long du, dl; + unsigned long x = fpu->fpul; + int exp = 1023 - 126; + + if (x != 0 && (x & 0x7f800000) == 0) { + du = (x & 0x80000000); + while ((x & 0x00800000) == 0) { + x <<= 1; + exp--; + } + x &= 0x007fffff; + du |= (exp << 20) | (x >> 3); + dl = x << 29; + + fpu->fp_regs[n] = du; + fpu->fp_regs[n+1] = dl; + } +} + +/** + * ieee_fpe_handler - Handle denormalized number exception + * + * @regs: Pointer to register structure + * + * Returns 1 when it's handled (should not cause exception). + */ +static int ieee_fpe_handler(struct pt_regs *regs) +{ + unsigned short insn = *(unsigned short *)regs->pc; + unsigned short finsn; + unsigned long nextpc; + int nib[4] = { + (insn >> 12) & 0xf, + (insn >> 8) & 0xf, + (insn >> 4) & 0xf, + insn & 0xf}; + + if (nib[0] == 0xb || + (nib[0] == 0x4 && nib[2] == 0x0 && nib[3] == 0xb)) /* bsr & jsr */ + regs->pr = regs->pc + 4; + + if (nib[0] == 0xa || nib[0] == 0xb) { /* bra & bsr */ + nextpc = regs->pc + 4 + ((short) ((insn & 0xfff) << 4) >> 3); + finsn = *(unsigned short *) (regs->pc + 2); + } else if (nib[0] == 0x8 && nib[1] == 0xd) { /* bt/s */ + if (regs->sr & 1) + nextpc = regs->pc + 4 + ((char) (insn & 0xff) << 1); + else + nextpc = regs->pc + 4; + finsn = *(unsigned short *) (regs->pc + 2); + } else if (nib[0] == 0x8 && nib[1] == 0xf) { /* bf/s */ + if (regs->sr & 1) + nextpc = regs->pc + 4; + else + nextpc = regs->pc + 4 + ((char) (insn & 0xff) << 1); + finsn = *(unsigned short *) (regs->pc + 2); + } else if (nib[0] == 0x4 && nib[3] == 0xb && + (nib[2] == 0x0 || nib[2] == 0x2)) { /* jmp & jsr */ + nextpc = regs->regs[nib[1]]; + finsn = *(unsigned short *) (regs->pc + 2); + } else if (nib[0] == 0x0 && nib[3] == 0x3 && + (nib[2] == 0x0 || nib[2] == 0x2)) { /* braf & bsrf */ + nextpc = regs->pc + 4 + regs->regs[nib[1]]; + finsn = *(unsigned short *) (regs->pc + 2); + } else if (insn == 0x000b) { /* rts */ + nextpc = regs->pr; + finsn = *(unsigned short *) (regs->pc + 2); + } else { + nextpc = regs->pc + 2; + finsn = insn; + } + + if ((finsn & 0xf1ff) == 0xf0ad) { /* fcnvsd */ + struct task_struct *tsk = current; + + if ((tsk->thread.fpu.hard.fpscr & (1 << 17))) { + /* FPU error */ + denormal_to_double (&tsk->thread.fpu.hard, + (finsn >> 8) & 0xf); + tsk->thread.fpu.hard.fpscr &= + ~(FPSCR_CAUSE_MASK | FPSCR_FLAG_MASK); + set_tsk_thread_flag(tsk, TIF_USEDFPU); + } else { + tsk->thread.trap_no = 11; + tsk->thread.error_code = 0; + force_sig(SIGFPE, tsk); + } + + regs->pc = nextpc; + return 1; + } + + return 0; +} + +asmlinkage void do_fpu_error(unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7, + struct pt_regs regs) +{ + struct task_struct *tsk = current; + + if (ieee_fpe_handler (®s)) + return; + + regs.pc += 2; + tsk->thread.trap_no = 11; + tsk->thread.error_code = 0; + force_sig(SIGFPE, tsk); +} + +/** + * fpu_init - Initialize FPU registers + * @fpu: Pointer to software emulated FPU registers. + */ +static void fpu_init(struct sh_fpu_soft_struct *fpu) +{ + int i; + + fpu->fpscr = FPSCR_INIT; + fpu->fpul = 0; + + for (i = 0; i < 16; i++) { + fpu->fp_regs[i] = 0; + fpu->xfp_regs[i]= 0; + } +} + +/** + * do_fpu_inst - Handle reserved instructions for FPU emulation + * @inst: instruction code. + * @regs: registers on stack. + */ +int do_fpu_inst(unsigned short inst, struct pt_regs *regs) +{ + struct task_struct *tsk = current; + struct sh_fpu_soft_struct *fpu = &(tsk->thread.fpu.soft); + + if (!test_tsk_thread_flag(tsk, TIF_USEDFPU)) { + /* initialize once. */ + fpu_init(fpu); + set_tsk_thread_flag(tsk, TIF_USEDFPU); + } + + return fpu_emulate(inst, fpu, regs); +}
diff --git a/arch/sh/math-emu/sfp-util.h b/arch/sh/math-emu/sfp-util.h new file mode 100644 index 0000000..8ae1bd3 --- /dev/null +++ b/arch/sh/math-emu/sfp-util.h
@@ -0,0 +1,72 @@ +/* + * These are copied from glibc/stdlib/longlong.h + */ + +#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ + do { \ + UWtype __x; \ + __x = (al) + (bl); \ + (sh) = (ah) + (bh) + (__x < (al)); \ + (sl) = __x; \ + } while (0) + +#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ + do { \ + UWtype __x; \ + __x = (al) - (bl); \ + (sh) = (ah) - (bh) - (__x > (al)); \ + (sl) = __x; \ + } while (0) + +#define umul_ppmm(w1, w0, u, v) \ + __asm__ ("dmulu.l %2,%3\n\tsts macl,%1\n\tsts mach,%0" \ + : "=r" ((u32)(w1)), "=r" ((u32)(w0)) \ + : "r" ((u32)(u)), "r" ((u32)(v)) \ + : "macl", "mach") + +#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2)) +#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1)) +#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2)) + +#define udiv_qrnnd(q, r, n1, n0, d) \ + do { \ + UWtype __d1, __d0, __q1, __q0; \ + UWtype __r1, __r0, __m; \ + __d1 = __ll_highpart (d); \ + __d0 = __ll_lowpart (d); \ + \ + __r1 = (n1) % __d1; \ + __q1 = (n1) / __d1; \ + __m = (UWtype) __q1 * __d0; \ + __r1 = __r1 * __ll_B | __ll_highpart (n0); \ + if (__r1 < __m) \ + { \ + __q1--, __r1 += (d); \ + if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\ + if (__r1 < __m) \ + __q1--, __r1 += (d); \ + } \ + __r1 -= __m; \ + \ + __r0 = __r1 % __d1; \ + __q0 = __r1 / __d1; \ + __m = (UWtype) __q0 * __d0; \ + __r0 = __r0 * __ll_B | __ll_lowpart (n0); \ + if (__r0 < __m) \ + { \ + __q0--, __r0 += (d); \ + if (__r0 >= (d)) \ + if (__r0 < __m) \ + __q0--, __r0 += (d); \ + } \ + __r0 -= __m; \ + \ + (q) = (UWtype) __q1 * __ll_B | __q0; \ + (r) = __r0; \ + } while (0) + +#define abort() return 0 + +#define __BYTE_ORDER __LITTLE_ENDIAN + +
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index fb586b1..9dd6064 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig
@@ -20,7 +20,10 @@ config CPU_SH4A bool select CPU_SH4 - select CPU_HAS_INTC2_IRQ + +config CPU_SH4AL_DSP + bool + select CPU_SH4A config CPU_SUBTYPE_ST40 bool @@ -48,6 +51,12 @@ select CPU_SH3 select CPU_HAS_PINT_IRQ +config CPU_SUBTYPE_SH7706 + bool "Support SH7706 processor" + select CPU_SH3 + help + Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. + config CPU_SUBTYPE_SH7707 bool "Support SH7707 processor" select CPU_SH3 @@ -69,6 +78,12 @@ help Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. +config CPU_SUBTYPE_SH7710 + bool "Support SH7710 processor" + select CPU_SH3 + help + Select SH7710 if you have a SH3-DSP SH7710 CPU. + comment "SH-4 Processor Support" config CPU_SUBTYPE_SH7750 @@ -133,10 +148,6 @@ comment "SH-4A Processor Support" -config CPU_SUBTYPE_SH73180 - bool "Support SH73180 processor" - select CPU_SH4A - config CPU_SUBTYPE_SH7770 bool "Support SH7770 processor" select CPU_SH4A @@ -144,6 +155,17 @@ config CPU_SUBTYPE_SH7780 bool "Support SH7780 processor" select CPU_SH4A + select CPU_HAS_INTC2_IRQ + +comment "SH4AL-DSP Processor Support" + +config CPU_SUBTYPE_SH73180 + bool "Support SH73180 processor" + select CPU_SH4AL_DSP + +config CPU_SUBTYPE_SH7343 + bool "Support SH7343 processor" + select CPU_SH4AL_DSP endmenu @@ -161,15 +183,59 @@ turning this off will boot the kernel on these machines with the MMU implicitly switched off. +config PAGE_OFFSET + hex + default "0x80000000" if MMU + default "0x00000000" + +config MEMORY_START + hex "Physical memory start address" + default "0x08000000" + ---help--- + Computers built with Hitachi SuperH processors always + map the ROM starting at address zero. But the processor + does not specify the range that RAM takes. + + The physical memory (RAM) start address will be automatically + set to 08000000. Other platforms, such as the Solution Engine + boards typically map RAM at 0C000000. + + Tweak this only when porting to a new machine which does not + already have a defconfig. Changing it from the known correct + value on any of the known systems will only lead to disaster. + +config MEMORY_SIZE + hex "Physical memory size" + default "0x00400000" + help + This sets the default memory size assumed by your SH kernel. It can + be overridden as normal by the 'mem=' argument on the kernel command + line. If unsure, consult your board specifications or just leave it + as 0x00400000 which was the default value before this became + configurable. + config 32BIT bool "Support 32-bit physical addressing through PMB" - depends on CPU_SH4A + depends on CPU_SH4A && MMU default y help If you say Y here, physical addressing will be extended to 32-bits through the SH-4A PMB. If this is not set, legacy 29-bit physical addressing will be used. +config VSYSCALL + bool "Support vsyscall page" + depends on MMU + default y + help + This will enable support for the kernel mapping a vDSO page + in process space, and subsequently handing down the entry point + to the libc through the ELF auxiliary vector. + + From the kernel side this is used for the signal trampoline. + For systems with an MMU that can afford to give up a page, + (the default value) say Y. + choice prompt "HugeTLB page size" depends on HUGETLB_PAGE && CPU_SH4 && MMU
diff --git a/arch/sh/mm/Makefile b/arch/sh/mm/Makefile index 9489a14..3ffd7f6 100644 --- a/arch/sh/mm/Makefile +++ b/arch/sh/mm/Makefile
@@ -6,20 +6,26 @@ obj-$(CONFIG_CPU_SH2) += cache-sh2.o obj-$(CONFIG_CPU_SH3) += cache-sh3.o -obj-$(CONFIG_CPU_SH4) += cache-sh4.o pg-sh4.o +obj-$(CONFIG_CPU_SH4) += cache-sh4.o obj-$(CONFIG_DMA_PAGE_OPS) += pg-dma.o obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o mmu-y := fault-nommu.o tlb-nommu.o pg-nommu.o -mmu-$(CONFIG_MMU) := fault.o clear_page.o copy_page.o +mmu-$(CONFIG_MMU) := fault.o clear_page.o copy_page.o tlb-flush.o \ + ioremap.o obj-y += $(mmu-y) +ifdef CONFIG_DEBUG_FS +obj-$(CONFIG_CPU_SH4) += cache-debugfs.o +endif + ifdef CONFIG_MMU -obj-$(CONFIG_CPU_SH3) += tlb-sh3.o -obj-$(CONFIG_CPU_SH4) += tlb-sh4.o ioremap.o +obj-$(CONFIG_CPU_SH3) += tlb-sh3.o +obj-$(CONFIG_CPU_SH4) += tlb-sh4.o pg-sh4.o obj-$(CONFIG_SH7705_CACHE_32KB) += pg-sh7705.o endif -obj-$(CONFIG_SH7705_CACHE_32KB) += cache-sh7705.o +obj-$(CONFIG_SH7705_CACHE_32KB) += cache-sh7705.o +obj-$(CONFIG_32BIT) += pmb.o
diff --git a/arch/sh/mm/cache-debugfs.c b/arch/sh/mm/cache-debugfs.c new file mode 100644 index 0000000..a22d914 --- /dev/null +++ b/arch/sh/mm/cache-debugfs.c
@@ -0,0 +1,147 @@ +/* + * debugfs ops for the L1 cache + * + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <linux/module.h> +#include <linux/debugfs.h> +#include <linux/seq_file.h> +#include <asm/processor.h> +#include <asm/uaccess.h> +#include <asm/cache.h> +#include <asm/io.h> + +enum cache_type { + CACHE_TYPE_ICACHE, + CACHE_TYPE_DCACHE, + CACHE_TYPE_UNIFIED, +}; + +static int cache_seq_show(struct seq_file *file, void *iter) +{ + unsigned int cache_type = (unsigned int)file->private; + struct cache_info *cache; + unsigned int waysize, way, cache_size; + unsigned long ccr, base; + static unsigned long addrstart = 0; + + /* + * Go uncached immediately so we don't skew the results any + * more than we already are.. + */ + jump_to_P2(); + + ccr = ctrl_inl(CCR); + if ((ccr & CCR_CACHE_ENABLE) == 0) { + back_to_P1(); + + seq_printf(file, "disabled\n"); + return 0; + } + + if (cache_type == CACHE_TYPE_DCACHE) { + base = CACHE_OC_ADDRESS_ARRAY; + cache = &cpu_data->dcache; + } else { + base = CACHE_IC_ADDRESS_ARRAY; + cache = &cpu_data->icache; + } + + /* + * Due to the amount of data written out (depending on the cache size), + * we may be iterated over multiple times. In this case, keep track of + * the entry position in addrstart, and rewind it when we've hit the + * end of the cache. + * + * Likewise, the same code is used for multiple caches, so care must + * be taken for bouncing addrstart back and forth so the appropriate + * cache is hit. + */ + cache_size = cache->ways * cache->sets * cache->linesz; + if (((addrstart & 0xff000000) != base) || + (addrstart & 0x00ffffff) > cache_size) + addrstart = base; + + waysize = cache->sets; + + /* + * If the OC is already in RAM mode, we only have + * half of the entries to consider.. + */ + if ((ccr & CCR_CACHE_ORA) && cache_type == CACHE_TYPE_DCACHE) + waysize >>= 1; + + waysize <<= cache->entry_shift; + + for (way = 0; way < cache->ways; way++) { + unsigned long addr; + unsigned int line; + + seq_printf(file, "-----------------------------------------\n"); + seq_printf(file, "Way %d\n", way); + seq_printf(file, "-----------------------------------------\n"); + + for (addr = addrstart, line = 0; + addr < addrstart + waysize; + addr += cache->linesz, line++) { + unsigned long data = ctrl_inl(addr); + + /* Check the V bit, ignore invalid cachelines */ + if ((data & 1) == 0) + continue; + + /* U: Dirty, cache tag is 10 bits up */ + seq_printf(file, "%3d: %c 0x%lx\n", + line, data & 2 ? 'U' : ' ', + data & 0x1ffffc00); + } + + addrstart += cache->way_incr; + } + + back_to_P1(); + + return 0; +} + +static int cache_debugfs_open(struct inode *inode, struct file *file) +{ + return single_open(file, cache_seq_show, inode->u.generic_ip); +} + +static struct file_operations cache_debugfs_fops = { + .owner = THIS_MODULE, + .open = cache_debugfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +static int __init cache_debugfs_init(void) +{ + struct dentry *dcache_dentry, *icache_dentry; + + dcache_dentry = debugfs_create_file("dcache", S_IRUSR, NULL, + (unsigned int *)CACHE_TYPE_DCACHE, + &cache_debugfs_fops); + if (IS_ERR(dcache_dentry)) + return PTR_ERR(dcache_dentry); + + icache_dentry = debugfs_create_file("icache", S_IRUSR, NULL, + (unsigned int *)CACHE_TYPE_ICACHE, + &cache_debugfs_fops); + if (IS_ERR(icache_dentry)) { + debugfs_remove(dcache_dentry); + return PTR_ERR(icache_dentry); + } + + return 0; +} +module_init(cache_debugfs_init); + +MODULE_LICENSE("GPL v2");
diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c index 524cea5..e48cc22 100644 --- a/arch/sh/mm/cache-sh4.c +++ b/arch/sh/mm/cache-sh4.c
@@ -2,49 +2,120 @@ * arch/sh/mm/cache-sh4.c * * Copyright (C) 1999, 2000, 2002 Niibe Yutaka - * Copyright (C) 2001, 2002, 2003, 2004 Paul Mundt + * Copyright (C) 2001 - 2006 Paul Mundt * Copyright (C) 2003 Richard Curnow * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ - #include <linux/init.h> -#include <linux/mman.h> #include <linux/mm.h> -#include <linux/threads.h> #include <asm/addrspace.h> -#include <asm/page.h> #include <asm/pgtable.h> #include <asm/processor.h> #include <asm/cache.h> #include <asm/io.h> -#include <asm/uaccess.h> #include <asm/pgalloc.h> #include <asm/mmu_context.h> #include <asm/cacheflush.h> -extern void __flush_cache_4096_all(unsigned long start); -static void __flush_cache_4096_all_ex(unsigned long start); -extern void __flush_dcache_all(void); -static void __flush_dcache_all_ex(void); +/* + * The maximum number of pages we support up to when doing ranged dcache + * flushing. Anything exceeding this will simply flush the dcache in its + * entirety. + */ +#define MAX_DCACHE_PAGES 64 /* XXX: Tune for ways */ + +static void __flush_dcache_segment_1way(unsigned long start, + unsigned long extent); +static void __flush_dcache_segment_2way(unsigned long start, + unsigned long extent); +static void __flush_dcache_segment_4way(unsigned long start, + unsigned long extent); + +static void __flush_cache_4096(unsigned long addr, unsigned long phys, + unsigned long exec_offset); + +/* + * This is initialised here to ensure that it is not placed in the BSS. If + * that were to happen, note that cache_init gets called before the BSS is + * cleared, so this would get nulled out which would be hopeless. + */ +static void (*__flush_dcache_segment_fn)(unsigned long, unsigned long) = + (void (*)(unsigned long, unsigned long))0xdeadbeef; + +static void compute_alias(struct cache_info *c) +{ + c->alias_mask = ((c->sets - 1) << c->entry_shift) & ~(PAGE_SIZE - 1); + c->n_aliases = (c->alias_mask >> PAGE_SHIFT) + 1; +} + +static void __init emit_cache_params(void) +{ + printk("PVR=%08x CVR=%08x PRR=%08x\n", + ctrl_inl(CCN_PVR), + ctrl_inl(CCN_CVR), + ctrl_inl(CCN_PRR)); + printk("I-cache : n_ways=%d n_sets=%d way_incr=%d\n", + cpu_data->icache.ways, + cpu_data->icache.sets, + cpu_data->icache.way_incr); + printk("I-cache : entry_mask=0x%08x alias_mask=0x%08x n_aliases=%d\n", + cpu_data->icache.entry_mask, + cpu_data->icache.alias_mask, + cpu_data->icache.n_aliases); + printk("D-cache : n_ways=%d n_sets=%d way_incr=%d\n", + cpu_data->dcache.ways, + cpu_data->dcache.sets, + cpu_data->dcache.way_incr); + printk("D-cache : entry_mask=0x%08x alias_mask=0x%08x n_aliases=%d\n", + cpu_data->dcache.entry_mask, + cpu_data->dcache.alias_mask, + cpu_data->dcache.n_aliases); + + if (!__flush_dcache_segment_fn) + panic("unknown number of cache ways\n"); +} /* * SH-4 has virtually indexed and physically tagged cache. */ -struct semaphore p3map_sem[4]; +/* Worst case assumed to be 64k cache, direct-mapped i.e. 4 synonym bits. */ +#define MAX_P3_SEMAPHORES 16 + +struct semaphore p3map_sem[MAX_P3_SEMAPHORES]; void __init p3_cache_init(void) { - if (remap_area_pages(P3SEG, 0, PAGE_SIZE*4, _PAGE_CACHABLE)) + int i; + + compute_alias(&cpu_data->icache); + compute_alias(&cpu_data->dcache); + + switch (cpu_data->dcache.ways) { + case 1: + __flush_dcache_segment_fn = __flush_dcache_segment_1way; + break; + case 2: + __flush_dcache_segment_fn = __flush_dcache_segment_2way; + break; + case 4: + __flush_dcache_segment_fn = __flush_dcache_segment_4way; + break; + default: + __flush_dcache_segment_fn = NULL; + break; + } + + emit_cache_params(); + + if (remap_area_pages(P3SEG, 0, PAGE_SIZE * 4, _PAGE_CACHABLE)) panic("%s failed.", __FUNCTION__); - sema_init (&p3map_sem[0], 1); - sema_init (&p3map_sem[1], 1); - sema_init (&p3map_sem[2], 1); - sema_init (&p3map_sem[3], 1); + for (i = 0; i < cpu_data->dcache.n_aliases; i++) + sema_init(&p3map_sem[i], 1); } /* @@ -89,7 +160,6 @@ } } - /* * No write back please */ @@ -108,40 +178,6 @@ } } -static void __flush_dcache_all_ex(void) -{ - unsigned long addr, end_addr, entry_offset; - - end_addr = CACHE_OC_ADDRESS_ARRAY + (cpu_data->dcache.sets << cpu_data->dcache.entry_shift) * cpu_data->dcache.ways; - entry_offset = 1 << cpu_data->dcache.entry_shift; - for (addr = CACHE_OC_ADDRESS_ARRAY; addr < end_addr; addr += entry_offset) { - ctrl_outl(0, addr); - } -} - -static void __flush_cache_4096_all_ex(unsigned long start) -{ - unsigned long addr, entry_offset; - int i; - - entry_offset = 1 << cpu_data->dcache.entry_shift; - for (i = 0; i < cpu_data->dcache.ways; i++, start += cpu_data->dcache.way_incr) { - for (addr = CACHE_OC_ADDRESS_ARRAY + start; - addr < CACHE_OC_ADDRESS_ARRAY + 4096 + start; - addr += entry_offset) { - ctrl_outl(0, addr); - } - } -} - -void flush_cache_4096_all(unsigned long start) -{ - if (cpu_data->dcache.ways == 1) - __flush_cache_4096_all(start); - else - __flush_cache_4096_all_ex(start); -} - /* * Write back the range of D-cache, and purge the I-cache. * @@ -153,14 +189,14 @@ } /* - * Write back the D-cache and purge the I-cache for signal trampoline. + * Write back the D-cache and purge the I-cache for signal trampoline. * .. which happens to be the same behavior as flush_icache_range(). * So, we simply flush out a line. */ void flush_cache_sigtramp(unsigned long addr) { unsigned long v, index; - unsigned long flags; + unsigned long flags; int i; v = addr & ~(L1_CACHE_BYTES-1); @@ -172,30 +208,33 @@ local_irq_save(flags); jump_to_P2(); - for(i = 0; i < cpu_data->icache.ways; i++, index += cpu_data->icache.way_incr) + + for (i = 0; i < cpu_data->icache.ways; + i++, index += cpu_data->icache.way_incr) ctrl_outl(0, index); /* Clear out Valid-bit */ + back_to_P1(); + wmb(); local_irq_restore(flags); } static inline void flush_cache_4096(unsigned long start, unsigned long phys) { - unsigned long flags; - extern void __flush_cache_4096(unsigned long addr, unsigned long phys, unsigned long exec_offset); + unsigned long flags, exec_offset = 0; /* - * SH7751, SH7751R, and ST40 have no restriction to handle cache. - * (While SH7750 must do that at P2 area.) + * All types of SH-4 require PC to be in P2 to operate on the I-cache. + * Some types of SH-4 require PC to be in P2 to operate on the D-cache. */ - if ((cpu_data->flags & CPU_HAS_P2_FLUSH_BUG) - || start < CACHE_OC_ADDRESS_ARRAY) { - local_irq_save(flags); - __flush_cache_4096(start | SH_CACHE_ASSOC, P1SEGADDR(phys), 0x20000000); - local_irq_restore(flags); - } else { - __flush_cache_4096(start | SH_CACHE_ASSOC, P1SEGADDR(phys), 0); - } + if ((cpu_data->flags & CPU_HAS_P2_FLUSH_BUG) || + (start < CACHE_OC_ADDRESS_ARRAY)) + exec_offset = 0x20000000; + + local_irq_save(flags); + __flush_cache_4096(start | SH_CACHE_ASSOC, + P1SEGADDR(phys), exec_offset); + local_irq_restore(flags); } /* @@ -206,15 +245,19 @@ { if (test_bit(PG_mapped, &page->flags)) { unsigned long phys = PHYSADDR(page_address(page)); + unsigned long addr = CACHE_OC_ADDRESS_ARRAY; + int i, n; /* Loop all the D-cache */ - flush_cache_4096(CACHE_OC_ADDRESS_ARRAY, phys); - flush_cache_4096(CACHE_OC_ADDRESS_ARRAY | 0x1000, phys); - flush_cache_4096(CACHE_OC_ADDRESS_ARRAY | 0x2000, phys); - flush_cache_4096(CACHE_OC_ADDRESS_ARRAY | 0x3000, phys); + n = cpu_data->dcache.n_aliases; + for (i = 0; i < n; i++, addr += PAGE_SIZE) + flush_cache_4096(addr, phys); } + + wmb(); } +/* TODO: Selective icache invalidation through IC address array.. */ static inline void flush_icache_all(void) { unsigned long flags, ccr; @@ -227,34 +270,142 @@ ccr |= CCR_CACHE_ICI; ctrl_outl(ccr, CCR); + /* + * back_to_P1() will take care of the barrier for us, don't add + * another one! + */ + back_to_P1(); local_irq_restore(flags); } +void flush_dcache_all(void) +{ + (*__flush_dcache_segment_fn)(0UL, cpu_data->dcache.way_size); + wmb(); +} + void flush_cache_all(void) { - if (cpu_data->dcache.ways == 1) - __flush_dcache_all(); - else - __flush_dcache_all_ex(); + flush_dcache_all(); flush_icache_all(); } +static void __flush_cache_mm(struct mm_struct *mm, unsigned long start, + unsigned long end) +{ + unsigned long d = 0, p = start & PAGE_MASK; + unsigned long alias_mask = cpu_data->dcache.alias_mask; + unsigned long n_aliases = cpu_data->dcache.n_aliases; + unsigned long select_bit; + unsigned long all_aliases_mask; + unsigned long addr_offset; + pgd_t *dir; + pmd_t *pmd; + pud_t *pud; + pte_t *pte; + int i; + + dir = pgd_offset(mm, p); + pud = pud_offset(dir, p); + pmd = pmd_offset(pud, p); + end = PAGE_ALIGN(end); + + all_aliases_mask = (1 << n_aliases) - 1; + + do { + if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd))) { + p &= PMD_MASK; + p += PMD_SIZE; + pmd++; + + continue; + } + + pte = pte_offset_kernel(pmd, p); + + do { + unsigned long phys; + pte_t entry = *pte; + + if (!(pte_val(entry) & _PAGE_PRESENT)) { + pte++; + p += PAGE_SIZE; + continue; + } + + phys = pte_val(entry) & PTE_PHYS_MASK; + + if ((p ^ phys) & alias_mask) { + d |= 1 << ((p & alias_mask) >> PAGE_SHIFT); + d |= 1 << ((phys & alias_mask) >> PAGE_SHIFT); + + if (d == all_aliases_mask) + goto loop_exit; + } + + pte++; + p += PAGE_SIZE; + } while (p < end && ((unsigned long)pte & ~PAGE_MASK)); + pmd++; + } while (p < end); + +loop_exit: + addr_offset = 0; + select_bit = 1; + + for (i = 0; i < n_aliases; i++) { + if (d & select_bit) { + (*__flush_dcache_segment_fn)(addr_offset, PAGE_SIZE); + wmb(); + } + + select_bit <<= 1; + addr_offset += PAGE_SIZE; + } +} + +/* + * Note : (RPC) since the caches are physically tagged, the only point + * of flush_cache_mm for SH-4 is to get rid of aliases from the + * D-cache. The assumption elsewhere, e.g. flush_cache_range, is that + * lines can stay resident so long as the virtual address they were + * accessed with (hence cache set) is in accord with the physical + * address (i.e. tag). It's no different here. So I reckon we don't + * need to flush the I-cache, since aliases don't matter for that. We + * should try that. + * + * Caller takes mm->mmap_sem. + */ void flush_cache_mm(struct mm_struct *mm) { - /* Is there any good way? */ - /* XXX: possibly call flush_cache_range for each vm area */ - /* - * FIXME: Really, the optimal solution here would be able to flush out - * individual lines created by the specified context, but this isn't - * feasible for a number of architectures (such as MIPS, and some - * SPARC) .. is this possible for SuperH? - * - * In the meantime, we'll just flush all of the caches.. this - * seems to be the simplest way to avoid at least a few wasted - * cache flushes. -Lethal + /* + * If cache is only 4k-per-way, there are never any 'aliases'. Since + * the cache is physically tagged, the data can just be left in there. */ - flush_cache_all(); + if (cpu_data->dcache.n_aliases == 0) + return; + + /* + * Don't bother groveling around the dcache for the VMA ranges + * if there are too many PTEs to make it worthwhile. + */ + if (mm->nr_ptes >= MAX_DCACHE_PAGES) + flush_dcache_all(); + else { + struct vm_area_struct *vma; + + /* + * In this case there are reasonably sized ranges to flush, + * iterate through the VMA list and take care of any aliases. + */ + for (vma = mm->mmap; vma; vma = vma->vm_next) + __flush_cache_mm(mm, vma->vm_start, vma->vm_end); + } + + /* Only touch the icache if one of the VMAs has VM_EXEC set. */ + if (mm->exec_vm) + flush_icache_all(); } /* @@ -263,27 +414,40 @@ * ADDR: Virtual Address (U0 address) * PFN: Physical page number */ -void flush_cache_page(struct vm_area_struct *vma, unsigned long address, unsigned long pfn) +void flush_cache_page(struct vm_area_struct *vma, unsigned long address, + unsigned long pfn) { unsigned long phys = pfn << PAGE_SHIFT; + unsigned int alias_mask; + + alias_mask = cpu_data->dcache.alias_mask; /* We only need to flush D-cache when we have alias */ - if ((address^phys) & CACHE_ALIAS) { + if ((address^phys) & alias_mask) { /* Loop 4K of the D-cache */ flush_cache_4096( - CACHE_OC_ADDRESS_ARRAY | (address & CACHE_ALIAS), + CACHE_OC_ADDRESS_ARRAY | (address & alias_mask), phys); /* Loop another 4K of the D-cache */ flush_cache_4096( - CACHE_OC_ADDRESS_ARRAY | (phys & CACHE_ALIAS), + CACHE_OC_ADDRESS_ARRAY | (phys & alias_mask), phys); } - if (vma->vm_flags & VM_EXEC) - /* Loop 4K (half) of the I-cache */ + alias_mask = cpu_data->icache.alias_mask; + if (vma->vm_flags & VM_EXEC) { + /* + * Evict entries from the portion of the cache from which code + * may have been executed at this address (virtual). There's + * no need to evict from the portion corresponding to the + * physical address as for the D-cache, because we know the + * kernel has never executed the code through its identity + * translation. + */ flush_cache_4096( - CACHE_IC_ADDRESS_ARRAY | (address & 0x1000), + CACHE_IC_ADDRESS_ARRAY | (address & alias_mask), phys); + } } /* @@ -298,52 +462,31 @@ void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { - unsigned long p = start & PAGE_MASK; - pgd_t *dir; - pmd_t *pmd; - pte_t *pte; - pte_t entry; - unsigned long phys; - unsigned long d = 0; + /* + * If cache is only 4k-per-way, there are never any 'aliases'. Since + * the cache is physically tagged, the data can just be left in there. + */ + if (cpu_data->dcache.n_aliases == 0) + return; - dir = pgd_offset(vma->vm_mm, p); - pmd = pmd_offset(dir, p); + /* + * Don't bother with the lookup and alias check if we have a + * wide range to cover, just blow away the dcache in its + * entirety instead. -- PFM. + */ + if (((end - start) >> PAGE_SHIFT) >= MAX_DCACHE_PAGES) + flush_dcache_all(); + else + __flush_cache_mm(vma->vm_mm, start, end); - do { - if (pmd_none(*pmd) || pmd_bad(*pmd)) { - p &= ~((1 << PMD_SHIFT) -1); - p += (1 << PMD_SHIFT); - pmd++; - continue; - } - pte = pte_offset_kernel(pmd, p); - do { - entry = *pte; - if ((pte_val(entry) & _PAGE_PRESENT)) { - phys = pte_val(entry)&PTE_PHYS_MASK; - if ((p^phys) & CACHE_ALIAS) { - d |= 1 << ((p & CACHE_ALIAS)>>12); - d |= 1 << ((phys & CACHE_ALIAS)>>12); - if (d == 0x0f) - goto loop_exit; - } - } - pte++; - p += PAGE_SIZE; - } while (p < end && ((unsigned long)pte & ~PAGE_MASK)); - pmd++; - } while (p < end); - loop_exit: - if (d & 1) - flush_cache_4096_all(0); - if (d & 2) - flush_cache_4096_all(0x1000); - if (d & 4) - flush_cache_4096_all(0x2000); - if (d & 8) - flush_cache_4096_all(0x3000); - if (vma->vm_flags & VM_EXEC) + if (vma->vm_flags & VM_EXEC) { + /* + * TODO: Is this required??? Need to look at how I-cache + * coherency is assured when new programs are loaded to see if + * this matters. + */ flush_icache_all(); + } } /* @@ -357,5 +500,273 @@ struct page *page, unsigned long addr, int len) { flush_cache_page(vma, addr, page_to_pfn(page)); + mb(); } +/** + * __flush_cache_4096 + * + * @addr: address in memory mapped cache array + * @phys: P1 address to flush (has to match tags if addr has 'A' bit + * set i.e. associative write) + * @exec_offset: set to 0x20000000 if flush has to be executed from P2 + * region else 0x0 + * + * The offset into the cache array implied by 'addr' selects the + * 'colour' of the virtual address range that will be flushed. The + * operation (purge/write-back) is selected by the lower 2 bits of + * 'phys'. + */ +static void __flush_cache_4096(unsigned long addr, unsigned long phys, + unsigned long exec_offset) +{ + int way_count; + unsigned long base_addr = addr; + struct cache_info *dcache; + unsigned long way_incr; + unsigned long a, ea, p; + unsigned long temp_pc; + + dcache = &cpu_data->dcache; + /* Write this way for better assembly. */ + way_count = dcache->ways; + way_incr = dcache->way_incr; + + /* + * Apply exec_offset (i.e. branch to P2 if required.). + * + * FIXME: + * + * If I write "=r" for the (temp_pc), it puts this in r6 hence + * trashing exec_offset before it's been added on - why? Hence + * "=&r" as a 'workaround' + */ + asm volatile("mov.l 1f, %0\n\t" + "add %1, %0\n\t" + "jmp @%0\n\t" + "nop\n\t" + ".balign 4\n\t" + "1: .long 2f\n\t" + "2:\n" : "=&r" (temp_pc) : "r" (exec_offset)); + + /* + * We know there will be >=1 iteration, so write as do-while to avoid + * pointless nead-of-loop check for 0 iterations. + */ + do { + ea = base_addr + PAGE_SIZE; + a = base_addr; + p = phys; + + do { + *(volatile unsigned long *)a = p; + /* + * Next line: intentionally not p+32, saves an add, p + * will do since only the cache tag bits need to + * match. + */ + *(volatile unsigned long *)(a+32) = p; + a += 64; + p += 64; + } while (a < ea); + + base_addr += way_incr; + } while (--way_count != 0); +} + +/* + * Break the 1, 2 and 4 way variants of this out into separate functions to + * avoid nearly all the overhead of having the conditional stuff in the function + * bodies (+ the 1 and 2 way cases avoid saving any registers too). + */ +static void __flush_dcache_segment_1way(unsigned long start, + unsigned long extent_per_way) +{ + unsigned long orig_sr, sr_with_bl; + unsigned long base_addr; + unsigned long way_incr, linesz, way_size; + struct cache_info *dcache; + register unsigned long a0, a0e; + + asm volatile("stc sr, %0" : "=r" (orig_sr)); + sr_with_bl = orig_sr | (1<<28); + base_addr = ((unsigned long)&empty_zero_page[0]); + + /* + * The previous code aligned base_addr to 16k, i.e. the way_size of all + * existing SH-4 D-caches. Whilst I don't see a need to have this + * aligned to any better than the cache line size (which it will be + * anyway by construction), let's align it to at least the way_size of + * any existing or conceivable SH-4 D-cache. -- RPC + */ + base_addr = ((base_addr >> 16) << 16); + base_addr |= start; + + dcache = &cpu_data->dcache; + linesz = dcache->linesz; + way_incr = dcache->way_incr; + way_size = dcache->way_size; + + a0 = base_addr; + a0e = base_addr + extent_per_way; + do { + asm volatile("ldc %0, sr" : : "r" (sr_with_bl)); + asm volatile("movca.l r0, @%0\n\t" + "ocbi @%0" : : "r" (a0)); + a0 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "ocbi @%0" : : "r" (a0)); + a0 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "ocbi @%0" : : "r" (a0)); + a0 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "ocbi @%0" : : "r" (a0)); + asm volatile("ldc %0, sr" : : "r" (orig_sr)); + a0 += linesz; + } while (a0 < a0e); +} + +static void __flush_dcache_segment_2way(unsigned long start, + unsigned long extent_per_way) +{ + unsigned long orig_sr, sr_with_bl; + unsigned long base_addr; + unsigned long way_incr, linesz, way_size; + struct cache_info *dcache; + register unsigned long a0, a1, a0e; + + asm volatile("stc sr, %0" : "=r" (orig_sr)); + sr_with_bl = orig_sr | (1<<28); + base_addr = ((unsigned long)&empty_zero_page[0]); + + /* See comment under 1-way above */ + base_addr = ((base_addr >> 16) << 16); + base_addr |= start; + + dcache = &cpu_data->dcache; + linesz = dcache->linesz; + way_incr = dcache->way_incr; + way_size = dcache->way_size; + + a0 = base_addr; + a1 = a0 + way_incr; + a0e = base_addr + extent_per_way; + do { + asm volatile("ldc %0, sr" : : "r" (sr_with_bl)); + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "ocbi @%0\n\t" + "ocbi @%1" : : + "r" (a0), "r" (a1)); + a0 += linesz; + a1 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "ocbi @%0\n\t" + "ocbi @%1" : : + "r" (a0), "r" (a1)); + a0 += linesz; + a1 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "ocbi @%0\n\t" + "ocbi @%1" : : + "r" (a0), "r" (a1)); + a0 += linesz; + a1 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "ocbi @%0\n\t" + "ocbi @%1" : : + "r" (a0), "r" (a1)); + asm volatile("ldc %0, sr" : : "r" (orig_sr)); + a0 += linesz; + a1 += linesz; + } while (a0 < a0e); +} + +static void __flush_dcache_segment_4way(unsigned long start, + unsigned long extent_per_way) +{ + unsigned long orig_sr, sr_with_bl; + unsigned long base_addr; + unsigned long way_incr, linesz, way_size; + struct cache_info *dcache; + register unsigned long a0, a1, a2, a3, a0e; + + asm volatile("stc sr, %0" : "=r" (orig_sr)); + sr_with_bl = orig_sr | (1<<28); + base_addr = ((unsigned long)&empty_zero_page[0]); + + /* See comment under 1-way above */ + base_addr = ((base_addr >> 16) << 16); + base_addr |= start; + + dcache = &cpu_data->dcache; + linesz = dcache->linesz; + way_incr = dcache->way_incr; + way_size = dcache->way_size; + + a0 = base_addr; + a1 = a0 + way_incr; + a2 = a1 + way_incr; + a3 = a2 + way_incr; + a0e = base_addr + extent_per_way; + do { + asm volatile("ldc %0, sr" : : "r" (sr_with_bl)); + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "movca.l r0, @%2\n\t" + "movca.l r0, @%3\n\t" + "ocbi @%0\n\t" + "ocbi @%1\n\t" + "ocbi @%2\n\t" + "ocbi @%3\n\t" : : + "r" (a0), "r" (a1), "r" (a2), "r" (a3)); + a0 += linesz; + a1 += linesz; + a2 += linesz; + a3 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "movca.l r0, @%2\n\t" + "movca.l r0, @%3\n\t" + "ocbi @%0\n\t" + "ocbi @%1\n\t" + "ocbi @%2\n\t" + "ocbi @%3\n\t" : : + "r" (a0), "r" (a1), "r" (a2), "r" (a3)); + a0 += linesz; + a1 += linesz; + a2 += linesz; + a3 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "movca.l r0, @%2\n\t" + "movca.l r0, @%3\n\t" + "ocbi @%0\n\t" + "ocbi @%1\n\t" + "ocbi @%2\n\t" + "ocbi @%3\n\t" : : + "r" (a0), "r" (a1), "r" (a2), "r" (a3)); + a0 += linesz; + a1 += linesz; + a2 += linesz; + a3 += linesz; + asm volatile("movca.l r0, @%0\n\t" + "movca.l r0, @%1\n\t" + "movca.l r0, @%2\n\t" + "movca.l r0, @%3\n\t" + "ocbi @%0\n\t" + "ocbi @%1\n\t" + "ocbi @%2\n\t" + "ocbi @%3\n\t" : : + "r" (a0), "r" (a1), "r" (a2), "r" (a3)); + asm volatile("ldc %0, sr" : : "r" (orig_sr)); + a0 += linesz; + a1 += linesz; + a2 += linesz; + a3 += linesz; + } while (a0 < a0e); +}
diff --git a/arch/sh/mm/cache-sh7705.c b/arch/sh/mm/cache-sh7705.c index ad8ed7d..045abdf 100644 --- a/arch/sh/mm/cache-sh7705.c +++ b/arch/sh/mm/cache-sh7705.c
@@ -9,7 +9,6 @@ * for more details. * */ - #include <linux/init.h> #include <linux/mman.h> #include <linux/mm.h> @@ -25,14 +24,10 @@ #include <asm/mmu_context.h> #include <asm/cacheflush.h> -/* The 32KB cache on the SH7705 suffers from the same synonym problem - * as SH4 CPUs */ - -#define __pte_offset(address) \ - ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) -#define pte_offset(dir, address) ((pte_t *) pmd_page_kernel(*(dir)) + \ - __pte_offset(address)) - +/* + * The 32KB cache on the SH7705 suffers from the same synonym problem + * as SH4 CPUs + */ static inline void cache_wback_all(void) { unsigned long ways, waysize, addrstart; @@ -73,7 +68,6 @@ __flush_wback_region((void *)start, end - start); } - /* * Writeback&Invalidate the D-cache of the page */ @@ -128,7 +122,6 @@ local_irq_restore(flags); } - /* * Write back & invalidate the D-cache of the page. * (To avoid "alias" issues) @@ -186,7 +179,8 @@ * * ADDRESS: Virtual Address (U0 address) */ -void flush_cache_page(struct vm_area_struct *vma, unsigned long address, unsigned long pfn) +void flush_cache_page(struct vm_area_struct *vma, unsigned long address, + unsigned long pfn) { __flush_dcache_page(pfn << PAGE_SHIFT); } @@ -203,4 +197,3 @@ { __flush_purge_region(page_address(page), PAGE_SIZE); } -
diff --git a/arch/sh/mm/clear_page.S b/arch/sh/mm/clear_page.S index 08acead..7b96425 100644 --- a/arch/sh/mm/clear_page.S +++ b/arch/sh/mm/clear_page.S
@@ -193,102 +193,5 @@ nop .L4096: .word 4096 -ENTRY(__flush_cache_4096) - mov.l 1f,r3 - add r6,r3 - mov r4,r0 - mov #64,r2 - shll r2 - mov #64,r6 - jmp @r3 - mov #96,r7 - .align 2 -1: .long 2f -2: - .rept 32 - mov.l r5,@r0 - mov.l r5,@(32,r0) - mov.l r5,@(r0,r6) - mov.l r5,@(r0,r7) - add r2,r5 - add r2,r0 - .endr - nop - nop - nop - nop - nop - nop - nop - rts - nop - -ENTRY(__flush_dcache_all) - mov.l 2f,r0 - mov.l 3f,r4 - and r0,r4 ! r4 = (unsigned long)&empty_zero_page[0] & ~0xffffc000 - stc sr,r1 ! save SR - mov.l 4f,r2 - or r1,r2 - mov #32,r3 - shll2 r3 -1: - ldc r2,sr ! set BL bit - movca.l r0,@r4 - ocbi @r4 - add #32,r4 - movca.l r0,@r4 - ocbi @r4 - add #32,r4 - movca.l r0,@r4 - ocbi @r4 - add #32,r4 - movca.l r0,@r4 - ocbi @r4 - ldc r1,sr ! restore SR - dt r3 - bf/s 1b - add #32,r4 - - rts - nop - .align 2 -2: .long 0xffffc000 -3: .long empty_zero_page -4: .long 0x10000000 ! BL bit - -/* __flush_cache_4096_all(unsigned long addr) */ -ENTRY(__flush_cache_4096_all) - mov.l 2f,r0 - mov.l 3f,r2 - and r0,r2 - or r2,r4 ! r4 = addr | (unsigned long)&empty_zero_page[0] & ~0x3fff - stc sr,r1 ! save SR - mov.l 4f,r2 - or r1,r2 - mov #32,r3 -1: - ldc r2,sr ! set BL bit - movca.l r0,@r4 - ocbi @r4 - add #32,r4 - movca.l r0,@r4 - ocbi @r4 - add #32,r4 - movca.l r0,@r4 - ocbi @r4 - add #32,r4 - movca.l r0,@r4 - ocbi @r4 - ldc r1,sr ! restore SR - dt r3 - bf/s 1b - add #32,r4 - - rts - nop - .align 2 -2: .long 0xffffc000 -3: .long empty_zero_page -4: .long 0x10000000 ! BL bit #endif +
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c index ee73e30..c81e6b6 100644 --- a/arch/sh/mm/consistent.c +++ b/arch/sh/mm/consistent.c
@@ -9,6 +9,8 @@ */ #include <linux/mm.h> #include <linux/dma-mapping.h> +#include <asm/cacheflush.h> +#include <asm/addrspace.h> #include <asm/io.h> void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *handle)
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index 775f86c..c69fd60 100644 --- a/arch/sh/mm/fault.c +++ b/arch/sh/mm/fault.c
@@ -1,33 +1,22 @@ -/* $Id: fault.c,v 1.14 2004/01/13 05:52:11 kkojima Exp $ +/* + * Page fault handler for SH with an MMU. * - * linux/arch/sh/mm/fault.c * Copyright (C) 1999 Niibe Yutaka * Copyright (C) 2003 Paul Mundt * * Based on linux/arch/i386/mm/fault.c: * Copyright (C) 1995 Linus Torvalds + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. */ - -#include <linux/signal.h> -#include <linux/sched.h> #include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/ptrace.h> -#include <linux/mman.h> #include <linux/mm.h> -#include <linux/smp.h> -#include <linux/smp_lock.h> -#include <linux/interrupt.h> -#include <linux/module.h> - +#include <linux/hardirq.h> +#include <linux/kprobes.h> #include <asm/system.h> -#include <asm/io.h> -#include <asm/uaccess.h> -#include <asm/pgalloc.h> #include <asm/mmu_context.h> -#include <asm/cacheflush.h> #include <asm/kgdb.h> extern void die(const char *,struct pt_regs *,long); @@ -187,18 +176,30 @@ goto no_context; } +#ifdef CONFIG_SH_STORE_QUEUES /* - * Called with interrupt disabled. + * This is a special case for the SH-4 store queues, as pages for this + * space still need to be faulted in before it's possible to flush the + * store queue cache for writeout to the remapped region. */ -asmlinkage int __do_page_fault(struct pt_regs *regs, unsigned long writeaccess, - unsigned long address) +#define P3_ADDR_MAX (P4SEG_STORE_QUE + 0x04000000) +#else +#define P3_ADDR_MAX P4SEG +#endif + +/* + * Called with interrupts disabled. + */ +asmlinkage int __kprobes __do_page_fault(struct pt_regs *regs, + unsigned long writeaccess, + unsigned long address) { - unsigned long addrmax = P4SEG; pgd_t *pgd; + pud_t *pud; pmd_t *pmd; pte_t *pte; pte_t entry; - struct mm_struct *mm; + struct mm_struct *mm = current->mm; spinlock_t *ptl; int ret = 1; @@ -207,31 +208,37 @@ kgdb_bus_err_hook(); #endif -#ifdef CONFIG_SH_STORE_QUEUES - addrmax = P4SEG_STORE_QUE + 0x04000000; -#endif - - if (address >= P3SEG && address < addrmax) { + /* + * We don't take page faults for P1, P2, and parts of P4, these + * are always mapped, whether it be due to legacy behaviour in + * 29-bit mode, or due to PMB configuration in 32-bit mode. + */ + if (address >= P3SEG && address < P3_ADDR_MAX) { pgd = pgd_offset_k(address); mm = NULL; - } else if (address >= TASK_SIZE) - return 1; - else if (!(mm = current->mm)) - return 1; - else - pgd = pgd_offset(mm, address); + } else { + if (unlikely(address >= TASK_SIZE || !mm)) + return 1; - pmd = pmd_offset(pgd, address); + pgd = pgd_offset(mm, address); + } + + pud = pud_offset(pgd, address); + if (pud_none_or_clear_bad(pud)) + return 1; + pmd = pmd_offset(pud, address); if (pmd_none_or_clear_bad(pmd)) return 1; + if (mm) pte = pte_offset_map_lock(mm, pmd, address, &ptl); else pte = pte_offset_kernel(pmd, address); entry = *pte; - if (pte_none(entry) || pte_not_present(entry) - || (writeaccess && !pte_write(entry))) + if (unlikely(pte_none(entry) || pte_not_present(entry))) + goto unlock; + if (unlikely(writeaccess && !pte_write(entry))) goto unlock; if (writeaccess) @@ -243,13 +250,7 @@ * ITLB is not affected by "ldtlb" instruction. * So, we need to flush the entry by ourselves. */ - - { - unsigned long flags; - local_irq_save(flags); - __flush_tlb_page(get_asid(), address&PAGE_MASK); - local_irq_restore(flags); - } + __flush_tlb_page(get_asid(), address & PAGE_MASK); #endif set_pte(pte, entry); @@ -260,121 +261,3 @@ pte_unmap_unlock(pte, ptl); return ret; } - -void flush_tlb_page(struct vm_area_struct *vma, unsigned long page) -{ - if (vma->vm_mm && vma->vm_mm->context != NO_CONTEXT) { - unsigned long flags; - unsigned long asid; - unsigned long saved_asid = MMU_NO_ASID; - - asid = vma->vm_mm->context & MMU_CONTEXT_ASID_MASK; - page &= PAGE_MASK; - - local_irq_save(flags); - if (vma->vm_mm != current->mm) { - saved_asid = get_asid(); - set_asid(asid); - } - __flush_tlb_page(asid, page); - if (saved_asid != MMU_NO_ASID) - set_asid(saved_asid); - local_irq_restore(flags); - } -} - -void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end) -{ - struct mm_struct *mm = vma->vm_mm; - - if (mm->context != NO_CONTEXT) { - unsigned long flags; - int size; - - local_irq_save(flags); - size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT; - if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */ - mm->context = NO_CONTEXT; - if (mm == current->mm) - activate_context(mm); - } else { - unsigned long asid = mm->context&MMU_CONTEXT_ASID_MASK; - unsigned long saved_asid = MMU_NO_ASID; - - start &= PAGE_MASK; - end += (PAGE_SIZE - 1); - end &= PAGE_MASK; - if (mm != current->mm) { - saved_asid = get_asid(); - set_asid(asid); - } - while (start < end) { - __flush_tlb_page(asid, start); - start += PAGE_SIZE; - } - if (saved_asid != MMU_NO_ASID) - set_asid(saved_asid); - } - local_irq_restore(flags); - } -} - -void flush_tlb_kernel_range(unsigned long start, unsigned long end) -{ - unsigned long flags; - int size; - - local_irq_save(flags); - size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT; - if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */ - flush_tlb_all(); - } else { - unsigned long asid = init_mm.context&MMU_CONTEXT_ASID_MASK; - unsigned long saved_asid = get_asid(); - - start &= PAGE_MASK; - end += (PAGE_SIZE - 1); - end &= PAGE_MASK; - set_asid(asid); - while (start < end) { - __flush_tlb_page(asid, start); - start += PAGE_SIZE; - } - set_asid(saved_asid); - } - local_irq_restore(flags); -} - -void flush_tlb_mm(struct mm_struct *mm) -{ - /* Invalidate all TLB of this process. */ - /* Instead of invalidating each TLB, we get new MMU context. */ - if (mm->context != NO_CONTEXT) { - unsigned long flags; - - local_irq_save(flags); - mm->context = NO_CONTEXT; - if (mm == current->mm) - activate_context(mm); - local_irq_restore(flags); - } -} - -void flush_tlb_all(void) -{ - unsigned long flags, status; - - /* - * Flush all the TLB. - * - * Write to the MMU control register's bit: - * TF-bit for SH-3, TI-bit for SH-4. - * It's same position, bit #2. - */ - local_irq_save(flags); - status = ctrl_inl(MMUCR); - status |= 0x04; - ctrl_outl(status, MMUCR); - local_irq_restore(flags); -}
diff --git a/arch/sh/mm/hugetlbpage.c b/arch/sh/mm/hugetlbpage.c index 2a85bc1..329059d 100644 --- a/arch/sh/mm/hugetlbpage.c +++ b/arch/sh/mm/hugetlbpage.c
@@ -26,63 +26,43 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr) { pgd_t *pgd; + pud_t *pud; pmd_t *pmd; pte_t *pte = NULL; pgd = pgd_offset(mm, addr); if (pgd) { - pmd = pmd_alloc(mm, pgd, addr); - if (pmd) - pte = pte_alloc_map(mm, pmd, addr); + pud = pud_alloc(mm, pgd, addr); + if (pud) { + pmd = pmd_alloc(mm, pud, addr); + if (pmd) + pte = pte_alloc_map(mm, pmd, addr); + } } + return pte; } pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr) { pgd_t *pgd; + pud_t *pud; pmd_t *pmd; pte_t *pte = NULL; pgd = pgd_offset(mm, addr); if (pgd) { - pmd = pmd_offset(pgd, addr); - if (pmd) - pte = pte_offset_map(pmd, addr); + pud = pud_offset(pgd, addr); + if (pud) { + pmd = pmd_offset(pud, addr); + if (pmd) + pte = pte_offset_map(pmd, addr); + } } + return pte; } -void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t entry) -{ - int i; - - for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) { - set_pte_at(mm, addr, ptep, entry); - ptep++; - addr += PAGE_SIZE; - pte_val(entry) += PAGE_SIZE; - } -} - -pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, - pte_t *ptep) -{ - pte_t entry; - int i; - - entry = *ptep; - - for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) { - pte_clear(mm, addr, ptep); - addr += PAGE_SIZE; - ptep++; - } - - return entry; -} - struct page *follow_huge_addr(struct mm_struct *mm, unsigned long address, int write) {
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index 8ea27ca..7154d1c 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c
@@ -24,7 +24,7 @@ #include <linux/highmem.h> #include <linux/bootmem.h> #include <linux/pagemap.h> - +#include <linux/proc_fs.h> #include <asm/processor.h> #include <asm/system.h> #include <asm/uaccess.h> @@ -80,6 +80,7 @@ static void set_pte_phys(unsigned long addr, unsigned long phys, pgprot_t prot) { pgd_t *pgd; + pud_t *pud; pmd_t *pmd; pte_t *pte; @@ -89,7 +90,17 @@ return; } - pmd = pmd_offset(pgd, addr); + pud = pud_offset(pgd, addr); + if (pud_none(*pud)) { + pmd = (pmd_t *)get_zeroed_page(GFP_ATOMIC); + set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | _PAGE_USER)); + if (pmd != pmd_offset(pud, 0)) { + pud_ERROR(*pud); + return; + } + } + + pmd = pmd_offset(pud, addr); if (pmd_none(*pmd)) { pte = (pte_t *)get_zeroed_page(GFP_ATOMIC); set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE | _PAGE_USER)); @@ -212,6 +223,8 @@ free_area_init_node(0, NODE_DATA(0), zones_size, __MEMORY_START >> PAGE_SHIFT, 0); } +static struct kcore_list kcore_mem, kcore_vmalloc; + void __init mem_init(void) { extern unsigned long empty_zero_page[1024]; @@ -237,8 +250,13 @@ * Setup wrappers for copy/clear_page(), these will get overridden * later in the boot process if a better method is available. */ +#ifdef CONFIG_MMU copy_page = copy_page_slow; clear_page = clear_page_slow; +#else + copy_page = copy_page_nommu; + clear_page = clear_page_nommu; +#endif /* this will put all low memory onto the freelists */ totalram_pages += free_all_bootmem_node(NODE_DATA(0)); @@ -254,7 +272,12 @@ datasize = (unsigned long) &_edata - (unsigned long) &_etext; initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; - printk("Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n", + kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT); + kclist_add(&kcore_vmalloc, (void *)VMALLOC_START, + VMALLOC_END - VMALLOC_START); + + printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, " + "%dk reserved, %dk data, %dk init)\n", (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), max_mapnr << (PAGE_SHIFT-10), codesize >> 10, @@ -263,6 +286,9 @@ initsize >> 10); p3_cache_init(); + + /* Initialize the vDSO */ + vsyscall_init(); } void free_initmem(void)
diff --git a/arch/sh/mm/ioremap.c b/arch/sh/mm/ioremap.c index 96fa4a9..a9fe80c 100644 --- a/arch/sh/mm/ioremap.c +++ b/arch/sh/mm/ioremap.c
@@ -15,6 +15,7 @@ #include <linux/vmalloc.h> #include <linux/module.h> #include <linux/mm.h> +#include <linux/pci.h> #include <asm/io.h> #include <asm/page.h> #include <asm/pgalloc.h> @@ -135,6 +136,20 @@ return (void __iomem *)phys_to_virt(phys_addr); /* + * If we're on an SH7751 or SH7780 PCI controller, PCI memory is + * mapped at the end of the address space (typically 0xfd000000) + * in a non-translatable area, so mapping through page tables for + * this area is not only pointless, but also fundamentally + * broken. Just return the physical address instead. + * + * For boards that map a small PCI memory aperture somewhere in + * P1/P2 space, ioremap() will already do the right thing, + * and we'll never get this far. + */ + if (is_pci_memaddr(phys_addr) && is_pci_memaddr(last_addr)) + return (void __iomem *)phys_addr; + + /* * Don't allow anybody to remap normal RAM that we're using.. */ if (phys_addr < virt_to_phys(high_memory)) @@ -192,7 +207,7 @@ unsigned long vaddr = (unsigned long __force)addr; struct vm_struct *p; - if (PXSEG(vaddr) < P3SEG) + if (PXSEG(vaddr) < P3SEG || is_pci_memaddr(vaddr)) return; #ifdef CONFIG_32BIT
diff --git a/arch/sh/mm/pg-nommu.c b/arch/sh/mm/pg-nommu.c index 8f9165a..d15221b 100644 --- a/arch/sh/mm/pg-nommu.c +++ b/arch/sh/mm/pg-nommu.c
@@ -14,23 +14,24 @@ #include <linux/string.h> #include <asm/page.h> -static void copy_page_nommu(void *to, void *from) +void copy_page_nommu(void *to, void *from) { memcpy(to, from, PAGE_SIZE); } -static void clear_page_nommu(void *to) +void clear_page_nommu(void *to) { memset(to, 0, PAGE_SIZE); } -static int __init pg_nommu_init(void) +__kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n) { - copy_page = copy_page_nommu; - clear_page = clear_page_nommu; - + memcpy(to, from, n); return 0; } -subsys_initcall(pg_nommu_init); - +__kernel_size_t __clear_user(void *to, __kernel_size_t n) +{ + memset(to, 0, n); + return 0; +}
diff --git a/arch/sh/mm/pg-sh4.c b/arch/sh/mm/pg-sh4.c index c776b60..07371ed 100644 --- a/arch/sh/mm/pg-sh4.c +++ b/arch/sh/mm/pg-sh4.c
@@ -2,7 +2,7 @@ * arch/sh/mm/pg-sh4.c * * Copyright (C) 1999, 2000, 2002 Niibe Yutaka - * Copyright (C) 2002 Paul Mundt + * Copyright (C) 2002 - 2005 Paul Mundt * * Released under the terms of the GNU GPL v2.0. */ @@ -23,6 +23,8 @@ extern struct semaphore p3map_sem[]; +#define CACHE_ALIAS (cpu_data->dcache.alias_mask) + /* * clear_user_page * @to: P1 address @@ -35,14 +37,15 @@ if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) clear_page(to); else { - pgprot_t pgprot = __pgprot(_PAGE_PRESENT | + pgprot_t pgprot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_CACHABLE | - _PAGE_DIRTY | _PAGE_ACCESSED | + _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_HW_SHARED | _PAGE_FLAGS_HARD); unsigned long phys_addr = PHYSADDR(to); unsigned long p3_addr = P3SEG + (address & CACHE_ALIAS); - pgd_t *dir = pgd_offset_k(p3_addr); - pmd_t *pmd = pmd_offset(dir, p3_addr); + pgd_t *pgd = pgd_offset_k(p3_addr); + pud_t *pud = pud_offset(pgd, p3_addr); + pmd_t *pmd = pmd_offset(pud, p3_addr); pte_t *pte = pte_offset_kernel(pmd, p3_addr); pte_t entry; unsigned long flags; @@ -67,21 +70,22 @@ * @address: U0 address to be mapped * @page: page (virt_to_page(to)) */ -void copy_user_page(void *to, void *from, unsigned long address, +void copy_user_page(void *to, void *from, unsigned long address, struct page *page) { __set_bit(PG_mapped, &page->flags); if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) copy_page(to, from); else { - pgprot_t pgprot = __pgprot(_PAGE_PRESENT | + pgprot_t pgprot = __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_CACHABLE | - _PAGE_DIRTY | _PAGE_ACCESSED | + _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_HW_SHARED | _PAGE_FLAGS_HARD); unsigned long phys_addr = PHYSADDR(to); unsigned long p3_addr = P3SEG + (address & CACHE_ALIAS); - pgd_t *dir = pgd_offset_k(p3_addr); - pmd_t *pmd = pmd_offset(dir, p3_addr); + pgd_t *pgd = pgd_offset_k(p3_addr); + pud_t *pud = pud_offset(pgd, p3_addr); + pmd_t *pmd = pmd_offset(pud, p3_addr); pte_t *pte = pte_offset_kernel(pmd, p3_addr); pte_t entry; unsigned long flags;
diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c new file mode 100644 index 0000000..92e7453 --- /dev/null +++ b/arch/sh/mm/pmb.c
@@ -0,0 +1,400 @@ +/* + * arch/sh/mm/pmb.c + * + * Privileged Space Mapping Buffer (PMB) Support. + * + * Copyright (C) 2005, 2006 Paul Mundt + * + * P1/P2 Section mapping definitions from map32.h, which was: + * + * Copyright 2003 (c) Lineo Solutions,Inc. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/bitops.h> +#include <linux/debugfs.h> +#include <linux/fs.h> +#include <linux/seq_file.h> +#include <linux/err.h> +#include <asm/system.h> +#include <asm/uaccess.h> +#include <asm/pgtable.h> +#include <asm/mmu.h> +#include <asm/io.h> + +#define NR_PMB_ENTRIES 16 + +static kmem_cache_t *pmb_cache; +static unsigned long pmb_map; + +static struct pmb_entry pmb_init_map[] = { + /* vpn ppn flags (ub/sz/c/wt) */ + + /* P1 Section Mappings */ + { 0x80000000, 0x00000000, PMB_SZ_64M | PMB_C, }, + { 0x84000000, 0x04000000, PMB_SZ_64M | PMB_C, }, + { 0x88000000, 0x08000000, PMB_SZ_128M | PMB_C, }, + { 0x90000000, 0x10000000, PMB_SZ_64M | PMB_C, }, + { 0x94000000, 0x14000000, PMB_SZ_64M | PMB_C, }, + { 0x98000000, 0x18000000, PMB_SZ_64M | PMB_C, }, + + /* P2 Section Mappings */ + { 0xa0000000, 0x00000000, PMB_UB | PMB_SZ_64M | PMB_WT, }, + { 0xa4000000, 0x04000000, PMB_UB | PMB_SZ_64M | PMB_WT, }, + { 0xa8000000, 0x08000000, PMB_UB | PMB_SZ_128M | PMB_WT, }, + { 0xb0000000, 0x10000000, PMB_UB | PMB_SZ_64M | PMB_WT, }, + { 0xb4000000, 0x14000000, PMB_UB | PMB_SZ_64M | PMB_WT, }, + { 0xb8000000, 0x18000000, PMB_UB | PMB_SZ_64M | PMB_WT, }, +}; + +static inline unsigned long mk_pmb_entry(unsigned int entry) +{ + return (entry & PMB_E_MASK) << PMB_E_SHIFT; +} + +static inline unsigned long mk_pmb_addr(unsigned int entry) +{ + return mk_pmb_entry(entry) | PMB_ADDR; +} + +static inline unsigned long mk_pmb_data(unsigned int entry) +{ + return mk_pmb_entry(entry) | PMB_DATA; +} + +struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn, + unsigned long flags) +{ + struct pmb_entry *pmbe; + + pmbe = kmem_cache_alloc(pmb_cache, GFP_KERNEL); + if (!pmbe) + return ERR_PTR(-ENOMEM); + + pmbe->vpn = vpn; + pmbe->ppn = ppn; + pmbe->flags = flags; + + return pmbe; +} + +void pmb_free(struct pmb_entry *pmbe) +{ + kmem_cache_free(pmb_cache, pmbe); +} + +/* + * Must be in P2 for __set_pmb_entry() + */ +int __set_pmb_entry(unsigned long vpn, unsigned long ppn, + unsigned long flags, int *entry) +{ + unsigned int pos = *entry; + + if (unlikely(pos == PMB_NO_ENTRY)) + pos = find_first_zero_bit(&pmb_map, NR_PMB_ENTRIES); + +repeat: + if (unlikely(pos > NR_PMB_ENTRIES)) + return -ENOSPC; + + if (test_and_set_bit(pos, &pmb_map)) { + pos = find_first_zero_bit(&pmb_map, NR_PMB_ENTRIES); + goto repeat; + } + + ctrl_outl(vpn | PMB_V, mk_pmb_addr(pos)); + +#ifdef CONFIG_SH_WRITETHROUGH + /* + * When we are in 32-bit address extended mode, CCR.CB becomes + * invalid, so care must be taken to manually adjust cacheable + * translations. + */ + if (likely(flags & PMB_C)) + flags |= PMB_WT; +#endif + + ctrl_outl(ppn | flags | PMB_V, mk_pmb_data(pos)); + + *entry = pos; + + return 0; +} + +int set_pmb_entry(struct pmb_entry *pmbe) +{ + int ret; + + jump_to_P2(); + ret = __set_pmb_entry(pmbe->vpn, pmbe->ppn, pmbe->flags, &pmbe->entry); + back_to_P1(); + + return ret; +} + +void clear_pmb_entry(struct pmb_entry *pmbe) +{ + unsigned int entry = pmbe->entry; + unsigned long addr; + + /* + * Don't allow clearing of wired init entries, P1 or P2 access + * without a corresponding mapping in the PMB will lead to reset + * by the TLB. + */ + if (unlikely(entry < ARRAY_SIZE(pmb_init_map) || + entry >= NR_PMB_ENTRIES)) + return; + + jump_to_P2(); + + /* Clear V-bit */ + addr = mk_pmb_addr(entry); + ctrl_outl(ctrl_inl(addr) & ~PMB_V, addr); + + addr = mk_pmb_data(entry); + ctrl_outl(ctrl_inl(addr) & ~PMB_V, addr); + + back_to_P1(); + + clear_bit(entry, &pmb_map); +} + +static DEFINE_SPINLOCK(pmb_list_lock); +static struct pmb_entry *pmb_list; + +static inline void pmb_list_add(struct pmb_entry *pmbe) +{ + struct pmb_entry **p, *tmp; + + p = &pmb_list; + while ((tmp = *p) != NULL) + p = &tmp->next; + + pmbe->next = tmp; + *p = pmbe; +} + +static inline void pmb_list_del(struct pmb_entry *pmbe) +{ + struct pmb_entry **p, *tmp; + + for (p = &pmb_list; (tmp = *p); p = &tmp->next) + if (tmp == pmbe) { + *p = tmp->next; + return; + } +} + +static struct { + unsigned long size; + int flag; +} pmb_sizes[] = { + { .size = 0x20000000, .flag = PMB_SZ_512M, }, + { .size = 0x08000000, .flag = PMB_SZ_128M, }, + { .size = 0x04000000, .flag = PMB_SZ_64M, }, + { .size = 0x01000000, .flag = PMB_SZ_16M, }, +}; + +long pmb_remap(unsigned long vaddr, unsigned long phys, + unsigned long size, unsigned long flags) +{ + struct pmb_entry *pmbp; + unsigned long wanted; + int pmb_flags, i; + + /* Convert typical pgprot value to the PMB equivalent */ + if (flags & _PAGE_CACHABLE) { + if (flags & _PAGE_WT) + pmb_flags = PMB_WT; + else + pmb_flags = PMB_C; + } else + pmb_flags = PMB_WT | PMB_UB; + + pmbp = NULL; + wanted = size; + +again: + for (i = 0; i < ARRAY_SIZE(pmb_sizes); i++) { + struct pmb_entry *pmbe; + int ret; + + if (size < pmb_sizes[i].size) + continue; + + pmbe = pmb_alloc(vaddr, phys, pmb_flags | pmb_sizes[i].flag); + if (IS_ERR(pmbe)) + return PTR_ERR(pmbe); + + ret = set_pmb_entry(pmbe); + if (ret != 0) { + pmb_free(pmbe); + return -EBUSY; + } + + phys += pmb_sizes[i].size; + vaddr += pmb_sizes[i].size; + size -= pmb_sizes[i].size; + + /* + * Link adjacent entries that span multiple PMB entries + * for easier tear-down. + */ + if (likely(pmbp)) + pmbp->link = pmbe; + + pmbp = pmbe; + } + + if (size >= 0x1000000) + goto again; + + return wanted - size; +} + +void pmb_unmap(unsigned long addr) +{ + struct pmb_entry **p, *pmbe; + + for (p = &pmb_list; (pmbe = *p); p = &pmbe->next) + if (pmbe->vpn == addr) + break; + + if (unlikely(!pmbe)) + return; + + WARN_ON(!test_bit(pmbe->entry, &pmb_map)); + + do { + struct pmb_entry *pmblink = pmbe; + + clear_pmb_entry(pmbe); + pmbe = pmblink->link; + + pmb_free(pmblink); + } while (pmbe); +} + +static void pmb_cache_ctor(void *pmb, kmem_cache_t *cachep, unsigned long flags) +{ + struct pmb_entry *pmbe = pmb; + + memset(pmb, 0, sizeof(struct pmb_entry)); + + spin_lock_irq(&pmb_list_lock); + + pmbe->entry = PMB_NO_ENTRY; + pmb_list_add(pmbe); + + spin_unlock_irq(&pmb_list_lock); +} + +static void pmb_cache_dtor(void *pmb, kmem_cache_t *cachep, unsigned long flags) +{ + spin_lock_irq(&pmb_list_lock); + pmb_list_del(pmb); + spin_unlock_irq(&pmb_list_lock); +} + +static int __init pmb_init(void) +{ + unsigned int nr_entries = ARRAY_SIZE(pmb_init_map); + unsigned int entry; + + BUG_ON(unlikely(nr_entries >= NR_PMB_ENTRIES)); + + pmb_cache = kmem_cache_create("pmb", sizeof(struct pmb_entry), + 0, 0, pmb_cache_ctor, pmb_cache_dtor); + BUG_ON(!pmb_cache); + + jump_to_P2(); + + /* + * Ordering is important, P2 must be mapped in the PMB before we + * can set PMB.SE, and P1 must be mapped before we jump back to + * P1 space. + */ + for (entry = 0; entry < nr_entries; entry++) { + struct pmb_entry *pmbe = pmb_init_map + entry; + + __set_pmb_entry(pmbe->vpn, pmbe->ppn, pmbe->flags, &entry); + } + + ctrl_outl(0, PMB_IRMCR); + + /* PMB.SE and UB[7] */ + ctrl_outl((1 << 31) | (1 << 7), PMB_PASCR); + + back_to_P1(); + + return 0; +} +arch_initcall(pmb_init); + +static int pmb_seq_show(struct seq_file *file, void *iter) +{ + int i; + + seq_printf(file, "V: Valid, C: Cacheable, WT: Write-Through\n" + "CB: Copy-Back, B: Buffered, UB: Unbuffered\n"); + seq_printf(file, "ety vpn ppn size flags\n"); + + for (i = 0; i < NR_PMB_ENTRIES; i++) { + unsigned long addr, data; + unsigned int size; + char *sz_str = NULL; + + addr = ctrl_inl(mk_pmb_addr(i)); + data = ctrl_inl(mk_pmb_data(i)); + + size = data & PMB_SZ_MASK; + sz_str = (size == PMB_SZ_16M) ? " 16MB": + (size == PMB_SZ_64M) ? " 64MB": + (size == PMB_SZ_128M) ? "128MB": + "512MB"; + + /* 02: V 0x88 0x08 128MB C CB B */ + seq_printf(file, "%02d: %c 0x%02lx 0x%02lx %s %c %s %s\n", + i, ((addr & PMB_V) && (data & PMB_V)) ? 'V' : ' ', + (addr >> 24) & 0xff, (data >> 24) & 0xff, + sz_str, (data & PMB_C) ? 'C' : ' ', + (data & PMB_WT) ? "WT" : "CB", + (data & PMB_UB) ? "UB" : " B"); + } + + return 0; +} + +static int pmb_debugfs_open(struct inode *inode, struct file *file) +{ + return single_open(file, pmb_seq_show, NULL); +} + +static struct file_operations pmb_debugfs_fops = { + .owner = THIS_MODULE, + .open = pmb_debugfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = seq_release, +}; + +static int __init pmb_debugfs_init(void) +{ + struct dentry *dentry; + + dentry = debugfs_create_file("pmb", S_IFREG | S_IRUGO, + NULL, NULL, &pmb_debugfs_fops); + if (IS_ERR(dentry)) + return PTR_ERR(dentry); + + return 0; +} +postcore_initcall(pmb_debugfs_init);
diff --git a/arch/sh/mm/tlb-flush.c b/arch/sh/mm/tlb-flush.c new file mode 100644 index 0000000..73ec7f6 --- /dev/null +++ b/arch/sh/mm/tlb-flush.c
@@ -0,0 +1,134 @@ +/* + * TLB flushing operations for SH with an MMU. + * + * Copyright (C) 1999 Niibe Yutaka + * Copyright (C) 2003 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/mm.h> +#include <asm/mmu_context.h> +#include <asm/tlbflush.h> + +void flush_tlb_page(struct vm_area_struct *vma, unsigned long page) +{ + if (vma->vm_mm && vma->vm_mm->context.id != NO_CONTEXT) { + unsigned long flags; + unsigned long asid; + unsigned long saved_asid = MMU_NO_ASID; + + asid = vma->vm_mm->context.id & MMU_CONTEXT_ASID_MASK; + page &= PAGE_MASK; + + local_irq_save(flags); + if (vma->vm_mm != current->mm) { + saved_asid = get_asid(); + set_asid(asid); + } + __flush_tlb_page(asid, page); + if (saved_asid != MMU_NO_ASID) + set_asid(saved_asid); + local_irq_restore(flags); + } +} + +void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end) +{ + struct mm_struct *mm = vma->vm_mm; + + if (mm->context.id != NO_CONTEXT) { + unsigned long flags; + int size; + + local_irq_save(flags); + size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT; + if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */ + mm->context.id = NO_CONTEXT; + if (mm == current->mm) + activate_context(mm); + } else { + unsigned long asid; + unsigned long saved_asid = MMU_NO_ASID; + + asid = mm->context.id & MMU_CONTEXT_ASID_MASK; + start &= PAGE_MASK; + end += (PAGE_SIZE - 1); + end &= PAGE_MASK; + if (mm != current->mm) { + saved_asid = get_asid(); + set_asid(asid); + } + while (start < end) { + __flush_tlb_page(asid, start); + start += PAGE_SIZE; + } + if (saved_asid != MMU_NO_ASID) + set_asid(saved_asid); + } + local_irq_restore(flags); + } +} + +void flush_tlb_kernel_range(unsigned long start, unsigned long end) +{ + unsigned long flags; + int size; + + local_irq_save(flags); + size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT; + if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */ + flush_tlb_all(); + } else { + unsigned long asid; + unsigned long saved_asid = get_asid(); + + asid = init_mm.context.id & MMU_CONTEXT_ASID_MASK; + start &= PAGE_MASK; + end += (PAGE_SIZE - 1); + end &= PAGE_MASK; + set_asid(asid); + while (start < end) { + __flush_tlb_page(asid, start); + start += PAGE_SIZE; + } + set_asid(saved_asid); + } + local_irq_restore(flags); +} + +void flush_tlb_mm(struct mm_struct *mm) +{ + /* Invalidate all TLB of this process. */ + /* Instead of invalidating each TLB, we get new MMU context. */ + if (mm->context.id != NO_CONTEXT) { + unsigned long flags; + + local_irq_save(flags); + mm->context.id = NO_CONTEXT; + if (mm == current->mm) + activate_context(mm); + local_irq_restore(flags); + } +} + +void flush_tlb_all(void) +{ + unsigned long flags, status; + + /* + * Flush all the TLB. + * + * Write to the MMU control register's bit: + * TF-bit for SH-3, TI-bit for SH-4. + * It's same position, bit #2. + */ + local_irq_save(flags); + status = ctrl_inl(MMUCR); + status |= 0x04; + ctrl_outl(status, MMUCR); + ctrl_barrier(); + local_irq_restore(flags); +}
diff --git a/arch/sh/mm/tlb-sh4.c b/arch/sh/mm/tlb-sh4.c index 115b1b6..812b2d5 100644 --- a/arch/sh/mm/tlb-sh4.c +++ b/arch/sh/mm/tlb-sh4.c
@@ -36,7 +36,6 @@ unsigned long vpn; struct page *page; unsigned long pfn; - unsigned long ptea; /* Ptrace may call this routine. */ if (vma && current->active_mm != vma->vm_mm) @@ -59,10 +58,11 @@ ctrl_outl(vpn, MMU_PTEH); pteval = pte_val(pte); + /* Set PTEA register */ - /* TODO: make this look less hacky */ - ptea = ((pteval >> 28) & 0xe) | (pteval & 0x1); - ctrl_outl(ptea, MMU_PTEA); + if (cpu_data->flags & CPU_HAS_PTEA) + /* TODO: make this look less hacky */ + ctrl_outl(((pteval >> 28) & 0xe) | (pteval & 0x1), MMU_PTEA); /* Set PTEL register */ pteval &= _PAGE_FLAGS_HARDWARE_MASK; /* drop software flags */
diff --git a/arch/sh/oprofile/Makefile b/arch/sh/oprofile/Makefile index 686738d..1f25d9b 100644 --- a/arch/sh/oprofile/Makefile +++ b/arch/sh/oprofile/Makefile
@@ -7,7 +7,11 @@ timer_int.o ) profdrvr-y := op_model_null.o + +# SH7750-style performance counters exist across 7750/7750S and 7091. +profdrvr-$(CONFIG_CPU_SUBTYPE_SH7750S) := op_model_sh7750.o profdrvr-$(CONFIG_CPU_SUBTYPE_SH7750) := op_model_sh7750.o +profdrvr-$(CONFIG_CPU_SUBTYPE_SH7091) := op_model_sh7750.o oprofile-y := $(DRIVER_OBJS) $(profdrvr-y)
diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types index 182fe90..ac57638 100644 --- a/arch/sh/tools/mach-types +++ b/arch/sh/tools/mach-types
@@ -8,16 +8,15 @@ SE SH_SOLUTION_ENGINE 7751SE SH_7751_SOLUTION_ENGINE 7300SE SH_7300_SOLUTION_ENGINE +7343SE SH_7343_SOLUTION_ENGINE 73180SE SH_73180_SOLUTION_ENGINE 7751SYSTEMH SH_7751_SYSTEMH HP6XX SH_HP6XX HD64461 HD64461 HD64465 HD64465 -SH2000 SH_SH2000 SATURN SH_SATURN DREAMCAST SH_DREAMCAST BIGSUR SH_BIGSUR -ADX SH_ADX MPC1211 SH_MPC1211 SNAPGEAR SH_SECUREEDGE5410 HS7751RVOIP SH_HS7751RVOIP @@ -25,4 +24,9 @@ EDOSK7705 SH_EDOSK7705 SH4202_MICRODEV SH_SH4202_MICRODEV SH03 SH_SH03 - +LANDISK SH_LANDISK +R7780RP SH_R7780RP +R7780MP SH_R7780MP +TITAN SH_TITAN +SHMIN SH_SHMIN +7710VOIPGW SH_7710VOIPGW
diff --git a/arch/sh64/mm/init.c b/arch/sh64/mm/init.c index 1169757..83295bd 100644 --- a/arch/sh64/mm/init.c +++ b/arch/sh64/mm/init.c
@@ -110,7 +110,7 @@ */ void __init paging_init(void) { - unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0}; + unsigned long zones_size[MAX_NR_ZONES] = {0, }; pgd_init((unsigned long)swapper_pg_dir); pgd_init((unsigned long)swapper_pg_dir +
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index 16e13f6..b27a506 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c
@@ -2175,7 +2175,7 @@ BTFIXUPSET_CALL(pte_pfn, srmmu_pte_pfn, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(pmd_page, srmmu_pmd_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pgd_page, srmmu_pgd_page, BTFIXUPCALL_NORM); + BTFIXUPSET_CALL(pgd_page_vaddr, srmmu_pgd_page, BTFIXUPCALL_NORM); BTFIXUPSET_SETHI(none_mask, 0xF0000000);
diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c index 7fdddf3..436021c 100644 --- a/arch/sparc/mm/sun4c.c +++ b/arch/sparc/mm/sun4c.c
@@ -2280,5 +2280,5 @@ /* These should _never_ get called with two level tables. */ BTFIXUPSET_CALL(pgd_set, sun4c_pgd_set, BTFIXUPCALL_NOP); - BTFIXUPSET_CALL(pgd_page, sun4c_pgd_page, BTFIXUPCALL_RETO0); + BTFIXUPSET_CALL(pgd_page_vaddr, sun4c_pgd_page, BTFIXUPCALL_RETO0); }
diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig index 51cf602..0fbdaa5 100644 --- a/arch/sparc64/defconfig +++ b/arch/sparc64/defconfig
@@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit # Linux kernel version: 2.6.18 -# Sat Sep 23 18:32:19 2006 +# Tue Sep 26 23:09:35 2006 # CONFIG_SPARC=y CONFIG_SPARC64=y @@ -141,6 +141,7 @@ CONFIG_SUN_IO=y CONFIG_PCI=y CONFIG_PCI_DOMAINS=y +# CONFIG_PCI_MULTITHREAD_PROBE is not set # CONFIG_PCI_DEBUG is not set CONFIG_SUN_OPENPROMFS=m CONFIG_SPARC32_COMPAT=y @@ -194,21 +195,9 @@ CONFIG_INET_XFRM_MODE_TUNNEL=y CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y -CONFIG_TCP_CONG_ADVANCED=y - -# -# TCP congestion control -# -CONFIG_TCP_CONG_BIC=y -CONFIG_TCP_CONG_CUBIC=m -CONFIG_TCP_CONG_WESTWOOD=m -CONFIG_TCP_CONG_HTCP=m -CONFIG_TCP_CONG_HSTCP=m -CONFIG_TCP_CONG_HYBLA=m -CONFIG_TCP_CONG_VEGAS=m -CONFIG_TCP_CONG_SCALABLE=m -CONFIG_TCP_CONG_LP=m -CONFIG_TCP_CONG_VENO=m +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" CONFIG_IPV6=m CONFIG_IPV6_PRIVACY=y CONFIG_IPV6_ROUTER_PREF=y @@ -247,6 +236,7 @@ # DCCP Kernel Hacking # # CONFIG_IP_DCCP_DEBUG is not set +# CONFIG_NET_DCCPPROBE is not set # # SCTP Configuration (EXPERIMENTAL) @@ -401,6 +391,7 @@ # CONFIG_RAID_ATTRS=m CONFIG_SCSI=y +CONFIG_SCSI_NETLINK=y CONFIG_SCSI_PROC_FS=y # @@ -422,12 +413,13 @@ # CONFIG_SCSI_LOGGING is not set # -# SCSI Transport Attributes +# SCSI Transports # CONFIG_SCSI_SPI_ATTRS=y CONFIG_SCSI_FC_ATTRS=y CONFIG_SCSI_ISCSI_ATTRS=m # CONFIG_SCSI_SAS_ATTRS is not set +# CONFIG_SCSI_SAS_LIBSAS is not set # # SCSI low-level drivers @@ -440,16 +432,18 @@ # CONFIG_SCSI_AIC7XXX is not set # CONFIG_SCSI_AIC7XXX_OLD is not set # CONFIG_SCSI_AIC79XX is not set +# CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_ARCMSR is not set # CONFIG_MEGARAID_NEWGEN is not set # CONFIG_MEGARAID_LEGACY is not set # CONFIG_MEGARAID_SAS is not set -# CONFIG_SCSI_SATA is not set # CONFIG_SCSI_HPTIOP is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_FUTURE_DOMAIN is not set # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set # CONFIG_SCSI_QLOGIC_1280 is not set @@ -462,6 +456,11 @@ # CONFIG_SCSI_SUNESP is not set # +# Serial ATA (prod) and Parallel ATA (experimental) drivers +# +# CONFIG_ATA is not set + +# # Multi-device support (RAID and LVM) # CONFIG_MD=y @@ -575,6 +574,7 @@ # CONFIG_VIA_VELOCITY is not set CONFIG_TIGON3=m CONFIG_BNX2=m +# CONFIG_QLA3XXX is not set # # Ethernet (10000 Mbit) @@ -1006,6 +1006,7 @@ # CONFIG_SND_VIA82XX_MODEM is not set # CONFIG_SND_VX222 is not set # CONFIG_SND_YMFPCI is not set +# CONFIG_SND_AC97_POWER_SAVE is not set # # USB devices @@ -1353,6 +1354,7 @@ # Kernel hacking # CONFIG_PRINTK_TIME=y +CONFIG_ENABLE_MUST_CHECK=y CONFIG_MAGIC_SYSRQ=y # CONFIG_UNUSED_SYMBOLS is not set CONFIG_DEBUG_KERNEL=y
diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c index c88ae23..69444f2 100644 --- a/arch/sparc64/kernel/sys_sparc32.c +++ b/arch/sparc64/kernel/sys_sparc32.c
@@ -1016,7 +1016,7 @@ asmlinkage long sys32_sysctl(struct __sysctl_args32 __user *args) { -#ifndef CONFIG_SYSCTL +#ifndef CONFIG_SYSCTL_SYSCALL return -ENOSYS; #else struct __sysctl_args32 tmp;
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index dcba4e6..09cb7fc 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c
@@ -920,8 +920,7 @@ if (sparc_ramdisk_image || sparc_ramdisk_image64) { unsigned long ramdisk_image = sparc_ramdisk_image ? sparc_ramdisk_image : sparc_ramdisk_image64; - if (ramdisk_image >= (unsigned long)_end - 2 * PAGE_SIZE) - ramdisk_image -= KERNBASE; + ramdisk_image -= KERNBASE; initrd_start = ramdisk_image + phys_base; initrd_end = initrd_start + sparc_ramdisk_size; if (initrd_end > end_of_phys_memory) {
diff --git a/arch/sparc64/solaris/misc.c b/arch/sparc64/solaris/misc.c index 8135ec3..6425417 100644 --- a/arch/sparc64/solaris/misc.c +++ b/arch/sparc64/solaris/misc.c
@@ -736,20 +736,15 @@ extern int init_socksys(void); -#ifdef MODULE - MODULE_AUTHOR("Jakub Jelinek (jj@ultra.linux.cz), Patrik Rak (prak3264@ss1000.ms.mff.cuni.cz)"); MODULE_DESCRIPTION("Solaris binary emulation module"); MODULE_LICENSE("GPL"); -#ifdef __sparc_v9__ extern u32 tl0_solaris[8]; #define update_ttable(x) \ tl0_solaris[3] = (((long)(x) - (long)tl0_solaris - 3) >> 2) | 0x40000000; \ wmb(); \ __asm__ __volatile__ ("flush %0" : : "r" (&tl0_solaris[3])) -#else -#endif extern u32 solaris_sparc_syscall[]; extern u32 solaris_syscall[]; @@ -757,7 +752,7 @@ extern u32 entry64_personality_patch; -int init_module(void) +static int __init solaris_init(void) { int ret; @@ -777,19 +772,12 @@ return 0; } -void cleanup_module(void) +static void __exit solaris_exit(void) { update_ttable(solaris_syscall); cleanup_socksys(); unregister_exec_domain(&solaris_exec_domain); } -#else -int init_solaris_emul(void) -{ - register_exec_domain(&solaris_exec_domain); - init_socksys(); - return 0; -} -#endif - +module_init(solaris_init); +module_exit(solaris_exit);
diff --git a/arch/sparc64/solaris/socksys.c b/arch/sparc64/solaris/socksys.c index bc3df95..7c90e41 100644 --- a/arch/sparc64/solaris/socksys.c +++ b/arch/sparc64/solaris/socksys.c
@@ -168,8 +168,7 @@ .release = socksys_release, }; -int __init -init_socksys(void) +int __init init_socksys(void) { int ret; struct file * file; @@ -199,8 +198,7 @@ return 0; } -void -cleanup_socksys(void) +void __exit cleanup_socksys(void) { if (unregister_chrdev(30, "socksys")) printk ("Couldn't unregister socksys character device\n");
diff --git a/arch/um/Makefile-x86_64 b/arch/um/Makefile-x86_64 index 9558a7c..11154b6 100644 --- a/arch/um/Makefile-x86_64 +++ b/arch/um/Makefile-x86_64
@@ -4,10 +4,13 @@ core-y += arch/um/sys-x86_64/ START := 0x60000000 +_extra_flags_ = -fno-builtin -m64 -mcmodel=kernel + #We #undef __x86_64__ for kernelspace, not for userspace where #it's needed for headers to work! -CFLAGS += -U__$(SUBARCH)__ -fno-builtin -m64 -USER_CFLAGS += -fno-builtin -m64 +CFLAGS += -U__$(SUBARCH)__ $(_extra_flags_) +USER_CFLAGS += $(_extra_flags_) + CHECKFLAGS += -m64 AFLAGS += -m64 LDFLAGS += -m elf_x86_64
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c index 7218c75..3576b3c 100644 --- a/arch/um/drivers/chan_kern.c +++ b/arch/um/drivers/chan_kern.c
@@ -110,7 +110,7 @@ "UML\n"); } -static struct chan_ops not_configged_ops = { +static const struct chan_ops not_configged_ops = { .init = not_configged_init, .open = not_configged_open, .close = not_configged_close, @@ -373,7 +373,7 @@ } int console_open_chan(struct line *line, struct console *co, - struct chan_opts *opts) + const struct chan_opts *opts) { int err; @@ -494,10 +494,10 @@ struct chan_type { char *key; - struct chan_ops *ops; + const struct chan_ops *ops; }; -static struct chan_type chan_table[] = { +static const struct chan_type chan_table[] = { { "fd", &fd_ops }, #ifdef CONFIG_NULL_CHAN @@ -534,17 +534,17 @@ }; static struct chan *parse_chan(struct line *line, char *str, int device, - struct chan_opts *opts) + const struct chan_opts *opts) { - struct chan_type *entry; - struct chan_ops *ops; + const struct chan_type *entry; + const struct chan_ops *ops; struct chan *chan; void *data; int i; ops = NULL; data = NULL; - for(i = 0; i < sizeof(chan_table)/sizeof(chan_table[0]); i++){ + for(i = 0; i < ARRAY_SIZE(chan_table); i++){ entry = &chan_table[i]; if(!strncmp(str, entry->key, strlen(entry->key))){ ops = entry->ops; @@ -582,7 +582,7 @@ } int parse_chan_pair(char *str, struct line *line, int device, - struct chan_opts *opts) + const struct chan_opts *opts) { struct list_head *chans = &line->chan_list; struct chan *new, *chan;
diff --git a/arch/um/drivers/daemon.h b/arch/um/drivers/daemon.h index 7326c42..3bc3cf6 100644 --- a/arch/um/drivers/daemon.h +++ b/arch/um/drivers/daemon.h
@@ -18,7 +18,7 @@ void *dev; }; -extern struct net_user_info daemon_user_info; +extern const struct net_user_info daemon_user_info; extern int daemon_user_write(int fd, void *buf, int len, struct daemon_data *pri);
diff --git a/arch/um/drivers/daemon_kern.c b/arch/um/drivers/daemon_kern.c index 53d09ed..8243869 100644 --- a/arch/um/drivers/daemon_kern.c +++ b/arch/um/drivers/daemon_kern.c
@@ -57,7 +57,7 @@ (struct daemon_data *) &lp->user)); } -static struct net_kern_info daemon_kern_info = { +static const struct net_kern_info daemon_kern_info = { .init = daemon_init, .protocol = eth_protocol, .read = daemon_read,
diff --git a/arch/um/drivers/daemon_user.c b/arch/um/drivers/daemon_user.c index c944265..77954ea 100644 --- a/arch/um/drivers/daemon_user.c +++ b/arch/um/drivers/daemon_user.c
@@ -182,7 +182,7 @@ return(mtu); } -struct net_user_info daemon_user_info = { +const struct net_user_info daemon_user_info = { .init = daemon_user_init, .open = daemon_open, .close = NULL,
diff --git a/arch/um/drivers/fd.c b/arch/um/drivers/fd.c index c41f75e..108b7da 100644 --- a/arch/um/drivers/fd.c +++ b/arch/um/drivers/fd.c
@@ -20,7 +20,7 @@ char str[sizeof("1234567890\0")]; }; -static void *fd_init(char *str, int device, struct chan_opts *opts) +static void *fd_init(char *str, int device, const struct chan_opts *opts) { struct fd_chan *data; char *end; @@ -77,7 +77,7 @@ } } -struct chan_ops fd_ops = { +const struct chan_ops fd_ops = { .type = "fd", .init = fd_init, .open = fd_open,
diff --git a/arch/um/drivers/hostaudio_kern.c b/arch/um/drivers/hostaudio_kern.c index 37232f9..d247ef4 100644 --- a/arch/um/drivers/hostaudio_kern.c +++ b/arch/um/drivers/hostaudio_kern.c
@@ -280,7 +280,7 @@ /* kernel module operations */ -static struct file_operations hostaudio_fops = { +static const struct file_operations hostaudio_fops = { .owner = THIS_MODULE, .llseek = no_llseek, .read = hostaudio_read, @@ -292,7 +292,7 @@ .release = hostaudio_release, }; -static struct file_operations hostmixer_fops = { +static const struct file_operations hostmixer_fops = { .owner = THIS_MODULE, .llseek = no_llseek, .ioctl = hostmixer_ioctl_mixdev,
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c index ebebaab..563ce76 100644 --- a/arch/um/drivers/line.c +++ b/arch/um/drivers/line.c
@@ -251,7 +251,7 @@ /* nothing */ } -static struct { +static const struct { int cmd; char *level; char *name; @@ -405,7 +405,7 @@ int line_setup_irq(int fd, int input, int output, struct line *line, void *data) { - struct line_driver *driver = line->driver; + const struct line_driver *driver = line->driver; int err = 0, flags = IRQF_DISABLED | IRQF_SHARED | IRQF_SAMPLE_RANDOM; if (input) @@ -558,7 +558,7 @@ } int line_config(struct line *lines, unsigned int num, char *str, - struct chan_opts *opts) + const struct chan_opts *opts) { struct line *line; char *new;
diff --git a/arch/um/drivers/mcast.h b/arch/um/drivers/mcast.h index a2c6db2..bc56af9 100644 --- a/arch/um/drivers/mcast.h +++ b/arch/um/drivers/mcast.h
@@ -13,7 +13,7 @@ void *dev; }; -extern struct net_user_info mcast_user_info; +extern const struct net_user_info mcast_user_info; extern int mcast_user_write(int fd, void *buf, int len, struct mcast_data *pri);
diff --git a/arch/um/drivers/mcast_kern.c b/arch/um/drivers/mcast_kern.c index 3a7af18..c090fbd 100644 --- a/arch/um/drivers/mcast_kern.c +++ b/arch/um/drivers/mcast_kern.c
@@ -61,7 +61,7 @@ (struct mcast_data *) &lp->user); } -static struct net_kern_info mcast_kern_info = { +static const struct net_kern_info mcast_kern_info = { .init = mcast_init, .protocol = eth_protocol, .read = mcast_read,
diff --git a/arch/um/drivers/mcast_user.c b/arch/um/drivers/mcast_user.c index afe85bf..4d2bd39 100644 --- a/arch/um/drivers/mcast_user.c +++ b/arch/um/drivers/mcast_user.c
@@ -152,7 +152,7 @@ return(mtu); } -struct net_user_info mcast_user_info = { +const struct net_user_info mcast_user_info = { .init = mcast_user_init, .open = mcast_open, .close = mcast_close,
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index b414522..79610b5 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c
@@ -497,7 +497,7 @@ } error = NULL; - size = sizeof(default_buf)/sizeof(default_buf[0]); + size = ARRAY_SIZE(default_buf); buf = default_buf; while(1){
diff --git a/arch/um/drivers/mconsole_user.c b/arch/um/drivers/mconsole_user.c index 9bfd405..5b2f5fe 100644 --- a/arch/um/drivers/mconsole_user.c +++ b/arch/um/drivers/mconsole_user.c
@@ -16,6 +16,7 @@ #include "user.h" #include "mconsole.h" #include "umid.h" +#include "user_util.h" static struct mconsole_command commands[] = { /* With uts namespaces, uts information becomes process-specific, so @@ -65,14 +66,14 @@ struct mconsole_command *cmd; int i; - for(i=0;i<sizeof(commands)/sizeof(commands[0]);i++){ + for(i = 0; i < ARRAY_SIZE(commands); i++){ cmd = &commands[i]; if(!strncmp(req->request.data, cmd->command, strlen(cmd->command))){ - return(cmd); + return cmd; } } - return(NULL); + return NULL; } #define MIN(a,b) ((a)<(b) ? (a):(b))
diff --git a/arch/um/drivers/mmapper_kern.c b/arch/um/drivers/mmapper_kern.c index 022f67b..9a3b5da 100644 --- a/arch/um/drivers/mmapper_kern.c +++ b/arch/um/drivers/mmapper_kern.c
@@ -85,7 +85,7 @@ return 0; } -static struct file_operations mmapper_fops = { +static const struct file_operations mmapper_fops = { .owner = THIS_MODULE, .read = mmapper_read, .write = mmapper_write, @@ -95,7 +95,7 @@ .release = mmapper_release, }; -static struct miscdevice mmapper_dev = { +static const struct miscdevice mmapper_dev = { .minor = MISC_DYNAMIC_MINOR, .name = "mmapper", .fops = &mmapper_fops
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c index 501f956..664c2e2 100644 --- a/arch/um/drivers/net_kern.c +++ b/arch/um/drivers/net_kern.c
@@ -31,6 +31,11 @@ #include "irq_user.h" #include "irq_kern.h" +static inline void set_ether_mac(struct net_device *dev, unsigned char *addr) +{ + memcpy(dev->dev_addr, addr, ETH_ALEN); +} + #define DRIVER_NAME "uml-netdev" static DEFINE_SPINLOCK(opened_lock); @@ -109,8 +114,6 @@ struct uml_net_private *lp = dev->priv; int err; - spin_lock(&lp->lock); - if(lp->fd >= 0){ err = -ENXIO; goto out; @@ -144,8 +147,6 @@ */ while((err = uml_net_rx(dev)) > 0) ; - spin_unlock(&lp->lock); - spin_lock(&opened_lock); list_add(&lp->list, &opened); spin_unlock(&opened_lock); @@ -155,7 +156,6 @@ if(lp->close != NULL) (*lp->close)(lp->fd, &lp->user); lp->fd = -1; out: - spin_unlock(&lp->lock); return err; } @@ -164,15 +164,12 @@ struct uml_net_private *lp = dev->priv; netif_stop_queue(dev); - spin_lock(&lp->lock); free_irq(dev->irq, dev); if(lp->close != NULL) (*lp->close)(lp->fd, &lp->user); lp->fd = -1; - spin_unlock(&lp->lock); - spin_lock(&opened_lock); list_del(&lp->list); spin_unlock(&opened_lock); @@ -241,9 +238,9 @@ struct uml_net_private *lp = dev->priv; struct sockaddr *hwaddr = addr; - spin_lock(&lp->lock); - memcpy(dev->dev_addr, hwaddr->sa_data, ETH_ALEN); - spin_unlock(&lp->lock); + spin_lock_irq(&lp->lock); + set_ether_mac(dev, hwaddr->sa_data); + spin_unlock_irq(&lp->lock); return(0); } @@ -253,7 +250,7 @@ struct uml_net_private *lp = dev->priv; int err = 0; - spin_lock(&lp->lock); + spin_lock_irq(&lp->lock); new_mtu = (*lp->set_mtu)(new_mtu, &lp->user); if(new_mtu < 0){ @@ -264,7 +261,7 @@ dev->mtu = new_mtu; out: - spin_unlock(&lp->lock); + spin_unlock_irq(&lp->lock); return err; } @@ -564,12 +561,13 @@ int n, err; err = eth_parse(str, &n, &str); - if(err) return(1); + if(err) + return 1; - new = alloc_bootmem(sizeof(new)); + new = alloc_bootmem(sizeof(*new)); if (new == NULL){ printk("eth_init : alloc_bootmem failed\n"); - return(1); + return 1; } INIT_LIST_HEAD(&new->list); @@ -577,7 +575,7 @@ new->init = str; list_add_tail(&new->list, ð_cmd_line); - return(1); + return 1; } __setup("eth", eth_setup); @@ -790,13 +788,6 @@ memcpy(bin_buf, &in->ifa_address, sizeof(in->ifa_address)); } -void set_ether_mac(void *d, unsigned char *addr) -{ - struct net_device *dev = d; - - memcpy(dev->dev_addr, addr, ETH_ALEN); -} - struct sk_buff *ether_adjust_skb(struct sk_buff *skb, int extra) { if((skb != NULL) && (skb_tailroom(skb) < extra)){
diff --git a/arch/um/drivers/null.c b/arch/um/drivers/null.c index 14cc5f7..3683ed4 100644 --- a/arch/um/drivers/null.c +++ b/arch/um/drivers/null.c
@@ -10,7 +10,7 @@ static int null_chan; -static void *null_init(char *str, int device, struct chan_opts *opts) +static void *null_init(char *str, int device, const struct chan_opts *opts) { return(&null_chan); } @@ -31,7 +31,7 @@ { } -struct chan_ops null_ops = { +const struct chan_ops null_ops = { .type = "null", .init = null_init, .open = null_open,
diff --git a/arch/um/drivers/pcap_kern.c b/arch/um/drivers/pcap_kern.c index 466ff2c..6e1ef85 100644 --- a/arch/um/drivers/pcap_kern.c +++ b/arch/um/drivers/pcap_kern.c
@@ -46,7 +46,7 @@ return(-EPERM); } -static struct net_kern_info pcap_kern_info = { +static const struct net_kern_info pcap_kern_info = { .init = pcap_init, .protocol = eth_protocol, .read = pcap_read, @@ -76,7 +76,7 @@ if(host_if != NULL) init->host_if = host_if; - for(i = 0; i < sizeof(options)/sizeof(options[0]); i++){ + for(i = 0; i < ARRAY_SIZE(options); i++){ if(options[i] == NULL) continue; if(!strcmp(options[i], "promisc"))
diff --git a/arch/um/drivers/pcap_user.c b/arch/um/drivers/pcap_user.c index edfcb29..2ef641d 100644 --- a/arch/um/drivers/pcap_user.c +++ b/arch/um/drivers/pcap_user.c
@@ -120,7 +120,7 @@ return(hdata.len); } -struct net_user_info pcap_user_info = { +const struct net_user_info pcap_user_info = { .init = pcap_user_init, .open = pcap_open, .close = NULL,
diff --git a/arch/um/drivers/port_user.c b/arch/um/drivers/port_user.c index c43e8bb..f2e8fc4 100644 --- a/arch/um/drivers/port_user.c +++ b/arch/um/drivers/port_user.c
@@ -27,7 +27,7 @@ char dev[sizeof("32768\0")]; }; -static void *port_init(char *str, int device, struct chan_opts *opts) +static void *port_init(char *str, int device, const struct chan_opts *opts) { struct port_chan *data; void *kern_data; @@ -100,7 +100,7 @@ os_close_file(fd); } -struct chan_ops port_ops = { +const struct chan_ops port_ops = { .type = "port", .init = port_init, .open = port_open,
diff --git a/arch/um/drivers/pty.c b/arch/um/drivers/pty.c index 1c555c3..abec620 100644 --- a/arch/um/drivers/pty.c +++ b/arch/um/drivers/pty.c
@@ -22,7 +22,7 @@ char dev_name[sizeof("/dev/pts/0123456\0")]; }; -static void *pty_chan_init(char *str, int device, struct chan_opts *opts) +static void *pty_chan_init(char *str, int device, const struct chan_opts *opts) { struct pty_chan *data; @@ -118,7 +118,7 @@ return(fd); } -struct chan_ops pty_ops = { +const struct chan_ops pty_ops = { .type = "pty", .init = pty_chan_init, .open = pty_open, @@ -131,7 +131,7 @@ .winch = 0, }; -struct chan_ops pts_ops = { +const struct chan_ops pts_ops = { .type = "pts", .init = pty_chan_init, .open = pts_open,
diff --git a/arch/um/drivers/random.c b/arch/um/drivers/random.c index ba471f5..ae99094 100644 --- a/arch/um/drivers/random.c +++ b/arch/um/drivers/random.c
@@ -68,7 +68,7 @@ return ret; } -static struct file_operations rng_chrdev_ops = { +static const struct file_operations rng_chrdev_ops = { .owner = THIS_MODULE, .open = rng_dev_open, .read = rng_dev_read,
diff --git a/arch/um/drivers/slip.h b/arch/um/drivers/slip.h index bb0dab4..c64f8c6 100644 --- a/arch/um/drivers/slip.h +++ b/arch/um/drivers/slip.h
@@ -12,7 +12,7 @@ struct slip_proto slip; }; -extern struct net_user_info slip_user_info; +extern const struct net_user_info slip_user_info; extern int slip_user_read(int fd, void *buf, int len, struct slip_data *pri); extern int slip_user_write(int fd, void *buf, int len, struct slip_data *pri);
diff --git a/arch/um/drivers/slip_kern.c b/arch/um/drivers/slip_kern.c index 163ee0d..ccea2d7 100644 --- a/arch/um/drivers/slip_kern.c +++ b/arch/um/drivers/slip_kern.c
@@ -61,7 +61,7 @@ (struct slip_data *) &lp->user)); } -struct net_kern_info slip_kern_info = { +const struct net_kern_info slip_kern_info = { .init = slip_init, .protocol = slip_protocol, .read = slip_read,
diff --git a/arch/um/drivers/slip_user.c b/arch/um/drivers/slip_user.c index 89fbec1..8460285 100644 --- a/arch/um/drivers/slip_user.c +++ b/arch/um/drivers/slip_user.c
@@ -241,7 +241,7 @@ close_addr(addr, netmask, pri->name); } -struct net_user_info slip_user_info = { +const struct net_user_info slip_user_info = { .init = slip_user_init, .open = slip_open, .close = slip_close,
diff --git a/arch/um/drivers/slirp.h b/arch/um/drivers/slirp.h index 6cf88ab..89ccf83 100644 --- a/arch/um/drivers/slirp.h +++ b/arch/um/drivers/slirp.h
@@ -24,7 +24,7 @@ struct slip_proto slip; }; -extern struct net_user_info slirp_user_info; +extern const struct net_user_info slirp_user_info; extern int slirp_user_read(int fd, void *buf, int len, struct slirp_data *pri); extern int slirp_user_write(int fd, void *buf, int len,
diff --git a/arch/um/drivers/slirp_kern.c b/arch/um/drivers/slirp_kern.c index 95e50c9..ae322e1 100644 --- a/arch/um/drivers/slirp_kern.c +++ b/arch/um/drivers/slirp_kern.c
@@ -64,7 +64,7 @@ (struct slirp_data *) &lp->user)); } -struct net_kern_info slirp_kern_info = { +const struct net_kern_info slirp_kern_info = { .init = slirp_init, .protocol = slirp_protocol, .read = slirp_read,
diff --git a/arch/um/drivers/slirp_user.c b/arch/um/drivers/slirp_user.c index 33c5f6e..ce5e85d 100644 --- a/arch/um/drivers/slirp_user.c +++ b/arch/um/drivers/slirp_user.c
@@ -126,7 +126,7 @@ return(mtu); } -struct net_user_info slirp_user_info = { +const struct net_user_info slirp_user_info = { .init = slirp_user_init, .open = slirp_open, .close = slirp_close,
diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c index 6dafd6f..6f13e7c 100644 --- a/arch/um/drivers/ssl.c +++ b/arch/um/drivers/ssl.c
@@ -23,7 +23,7 @@ #include "irq_user.h" #include "mconsole_kern.h" -static int ssl_version = 1; +static const int ssl_version = 1; /* Referenced only by tty_driver below - presumably it's locked correctly * by the tty driver. @@ -123,7 +123,7 @@ } #endif -static struct tty_operations ssl_ops = { +static const struct tty_operations ssl_ops = { .open = ssl_open, .close = line_close, .write = line_write,
diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c index 856f568..5e44adb 100644 --- a/arch/um/drivers/stdio_console.c +++ b/arch/um/drivers/stdio_console.c
@@ -110,7 +110,7 @@ static int con_init_done = 0; -static struct tty_operations console_ops = { +static const struct tty_operations console_ops = { .open = con_open, .close = line_close, .write = line_write,
diff --git a/arch/um/drivers/tty.c b/arch/um/drivers/tty.c index 9f70edf..11de3ac 100644 --- a/arch/um/drivers/tty.c +++ b/arch/um/drivers/tty.c
@@ -18,7 +18,7 @@ struct termios tt; }; -static void *tty_chan_init(char *str, int device, struct chan_opts *opts) +static void *tty_chan_init(char *str, int device, const struct chan_opts *opts) { struct tty_chan *data; @@ -62,7 +62,7 @@ return fd; } -struct chan_ops tty_ops = { +const struct chan_ops tty_ops = { .type = "tty", .init = tty_chan_init, .open = tty_open,
diff --git a/arch/um/drivers/xterm.c b/arch/um/drivers/xterm.c index aaa63666..386f8b9 100644 --- a/arch/um/drivers/xterm.c +++ b/arch/um/drivers/xterm.c
@@ -31,7 +31,7 @@ }; /* Not static because it's called directly by the tt mode gdb code */ -void *xterm_init(char *str, int device, struct chan_opts *opts) +void *xterm_init(char *str, int device, const struct chan_opts *opts) { struct xterm_chan *data; @@ -194,7 +194,7 @@ free(d); } -struct chan_ops xterm_ops = { +const struct chan_ops xterm_ops = { .type = "xterm", .init = xterm_init, .open = xterm_open,
diff --git a/arch/um/include/chan_kern.h b/arch/um/include/chan_kern.h index 1bb5e9d..572d286 100644 --- a/arch/um/include/chan_kern.h +++ b/arch/um/include/chan_kern.h
@@ -23,21 +23,21 @@ unsigned int opened:1; unsigned int enabled:1; int fd; - struct chan_ops *ops; + const struct chan_ops *ops; void *data; }; extern void chan_interrupt(struct list_head *chans, struct work_struct *task, struct tty_struct *tty, int irq); extern int parse_chan_pair(char *str, struct line *line, int device, - struct chan_opts *opts); + const struct chan_opts *opts); extern int open_chan(struct list_head *chans); extern int write_chan(struct list_head *chans, const char *buf, int len, int write_irq); extern int console_write_chan(struct list_head *chans, const char *buf, int len); extern int console_open_chan(struct line *line, struct console *co, - struct chan_opts *opts); + const struct chan_opts *opts); extern void deactivate_chan(struct list_head *chans, int irq); extern void reactivate_chan(struct list_head *chans, int irq); extern void chan_enable_winch(struct list_head *chans, struct tty_struct *tty);
diff --git a/arch/um/include/chan_user.h b/arch/um/include/chan_user.h index 659bb3c..a795547 100644 --- a/arch/um/include/chan_user.h +++ b/arch/um/include/chan_user.h
@@ -20,7 +20,7 @@ struct chan_ops { char *type; - void *(*init)(char *, int, struct chan_opts *); + void *(*init)(char *, int, const struct chan_opts *); int (*open)(int, int, int, void *, char **); void (*close)(int, void *); int (*read)(int, char *, void *); @@ -31,8 +31,8 @@ int winch; }; -extern struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops, tty_ops, - xterm_ops; +extern const struct chan_ops fd_ops, null_ops, port_ops, pts_ops, pty_ops, + tty_ops, xterm_ops; extern void generic_close(int fd, void *unused); extern int generic_read(int fd, char *c_out, void *unused);
diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h index b98bdd8..59cfa9e 100644 --- a/arch/um/include/kern_util.h +++ b/arch/um/include/kern_util.h
@@ -21,13 +21,12 @@ kern_hndl timer_handler; }; -extern struct kern_handlers handlinfo_kern; +extern const struct kern_handlers handlinfo_kern; extern int ncpus; extern char *linux_prog; extern char *gdb_init; extern int kmalloc_ok; -extern int timer_irq_inited; extern int jail; extern int nsyscalls;
diff --git a/arch/um/include/line.h b/arch/um/include/line.h index 27bf2f6..642c9a0 100644 --- a/arch/um/include/line.h +++ b/arch/um/include/line.h
@@ -52,7 +52,7 @@ int sigio; struct work_struct task; - struct line_driver *driver; + const struct line_driver *driver; int have_irq; }; @@ -99,7 +99,7 @@ extern void close_lines(struct line *lines, int nlines); extern int line_config(struct line *lines, unsigned int sizeof_lines, - char *str, struct chan_opts *opts); + char *str, const struct chan_opts *opts); extern int line_id(char **str, int *start_out, int *end_out); extern int line_remove(struct line *lines, unsigned int sizeof_lines, int n); extern int line_get_config(char *dev, struct line *lines,
diff --git a/arch/um/include/longjmp.h b/arch/um/include/longjmp.h index 1b5c013..e93c6d3 100644 --- a/arch/um/include/longjmp.h +++ b/arch/um/include/longjmp.h
@@ -1,9 +1,12 @@ #ifndef __UML_LONGJMP_H #define __UML_LONGJMP_H -#include <setjmp.h> +#include "sysdep/archsetjmp.h" #include "os.h" +extern int setjmp(jmp_buf); +extern void longjmp(jmp_buf, int); + #define UML_LONGJMP(buf, val) do { \ longjmp(*buf, val); \ } while(0)
diff --git a/arch/um/include/net_kern.h b/arch/um/include/net_kern.h index f7de6df..769fba4 100644 --- a/arch/um/include/net_kern.h +++ b/arch/um/include/net_kern.h
@@ -54,8 +54,8 @@ struct list_head list; char *name; int (*setup)(char *, char **, void *); - struct net_user_info *user; - struct net_kern_info *kern; + const struct net_user_info *user; + const struct net_kern_info *kern; int private_size; int setup_size; };
diff --git a/arch/um/include/net_user.h b/arch/um/include/net_user.h index 800c403..47ef7cb 100644 --- a/arch/um/include/net_user.h +++ b/arch/um/include/net_user.h
@@ -26,7 +26,6 @@ extern void ether_user_init(void *data, void *dev); extern void dev_ip_addr(void *d, unsigned char *bin_buf); -extern void set_ether_mac(void *d, unsigned char *addr); extern void iter_addresses(void *d, void (*cb)(unsigned char *, unsigned char *, void *), void *arg);
diff --git a/arch/um/include/os.h b/arch/um/include/os.h index 5316e8a..120ca21 100644 --- a/arch/um/include/os.h +++ b/arch/um/include/os.h
@@ -14,6 +14,7 @@ #include "skas/mm_id.h" #include "irq_user.h" #include "sysdep/tls.h" +#include "sysdep/archsetjmp.h" #define OS_TYPE_FILE 1 #define OS_TYPE_DIR 2 @@ -198,7 +199,9 @@ extern int os_getpid(void); extern int os_getpgrp(void); +#ifdef UML_CONFIG_MODE_TT extern void init_new_thread_stack(void *sig_stack, void (*usr1_handler)(int)); +#endif extern void init_new_thread_signals(void); extern int run_kernel_thread(int (*fn)(void *), void *arg, void **jmp_ptr); @@ -216,7 +219,6 @@ */ extern void forward_ipi(int fd, int pid); extern void kill_child_dead(int pid); -extern void stop(void); extern int wait_for_stop(int pid, int sig, int cont_type, void *relay); extern int protect_memory(unsigned long addr, unsigned long len, int r, int w, int x, int must_succeed); @@ -276,9 +278,11 @@ extern void switch_timers(int to_real); extern void idle_sleep(int secs); +extern int set_interval(int is_virtual); +#ifdef CONFIG_MODE_TT extern void enable_timer(void); +#endif extern void disable_timer(void); -extern void user_time_init(void); extern void uml_idle_timer(void); extern unsigned long long os_nsecs(void); @@ -305,12 +309,9 @@ extern void userspace(union uml_pt_regs *regs); extern void map_stub_pages(int fd, unsigned long code, unsigned long data, unsigned long stack); -extern void new_thread(void *stack, void **switch_buf_ptr, - void **fork_buf_ptr, void (*handler)(int)); -extern void thread_wait(void *sw, void *fb); -extern void switch_threads(void *me, void *next); -extern int start_idle_thread(void *stack, void *switch_buf_ptr, - void **fork_buf_ptr); +extern void new_thread(void *stack, jmp_buf *buf, void (*handler)(void)); +extern void switch_threads(jmp_buf *me, jmp_buf *you); +extern int start_idle_thread(void *stack, jmp_buf *switch_buf); extern void initial_thread_cb_skas(void (*proc)(void *), void *arg); extern void halt_skas(void); @@ -329,6 +330,7 @@ extern void init_irq_signals(int on_sigstack); /* sigio.c */ +extern int add_sigio_fd(int fd); extern int ignore_sigio_fd(int fd); extern void maybe_sigio_broken(int fd, int read);
diff --git a/arch/um/include/registers.h b/arch/um/include/registers.h index 83b688c..f845b36 100644 --- a/arch/um/include/registers.h +++ b/arch/um/include/registers.h
@@ -7,6 +7,7 @@ #define __REGISTERS_H #include "sysdep/ptrace.h" +#include "sysdep/archsetjmp.h" extern void init_thread_registers(union uml_pt_regs *to); extern int save_fp_registers(int pid, unsigned long *fp_regs); @@ -15,6 +16,6 @@ extern void restore_registers(int pid, union uml_pt_regs *regs); extern void init_registers(int pid); extern void get_safe_registers(unsigned long * regs, unsigned long * fp_regs); -extern void get_thread_regs(union uml_pt_regs *uml_regs, void *buffer); +extern unsigned long get_thread_reg(int reg, jmp_buf *buf); #endif
diff --git a/arch/um/include/skas/skas.h b/arch/um/include/skas/skas.h index 853b26f..e88926b 100644 --- a/arch/um/include/skas/skas.h +++ b/arch/um/include/skas/skas.h
@@ -14,8 +14,7 @@ extern int skas_needs_stub; extern int user_thread(unsigned long stack, int flags); -extern void new_thread_proc(void *stack, void (*handler)(int sig)); -extern void new_thread_handler(int sig); +extern void new_thread_handler(void); extern void handle_syscall(union uml_pt_regs *regs); extern int new_mm(unsigned long stack); extern void get_skas_faultinfo(int pid, struct faultinfo * fi);
diff --git a/arch/um/include/sysdep-i386/archsetjmp.h b/arch/um/include/sysdep-i386/archsetjmp.h new file mode 100644 index 0000000..11bafab --- /dev/null +++ b/arch/um/include/sysdep-i386/archsetjmp.h
@@ -0,0 +1,22 @@ +/* + * arch/i386/include/klibc/archsetjmp.h + */ + +#ifndef _KLIBC_ARCHSETJMP_H +#define _KLIBC_ARCHSETJMP_H + +struct __jmp_buf { + unsigned int __ebx; + unsigned int __esp; + unsigned int __ebp; + unsigned int __esi; + unsigned int __edi; + unsigned int __eip; +}; + +typedef struct __jmp_buf jmp_buf[1]; + +#define JB_IP __eip +#define JB_SP __esp + +#endif /* _SETJMP_H */
diff --git a/arch/um/include/sysdep-i386/signal.h b/arch/um/include/sysdep-i386/signal.h deleted file mode 100644 index 07518b1..0000000 --- a/arch/um/include/sysdep-i386/signal.h +++ /dev/null
@@ -1,27 +0,0 @@ -/* - * Copyright (C) 2004 PathScale, Inc - * Licensed under the GPL - */ - -#ifndef __I386_SIGNAL_H_ -#define __I386_SIGNAL_H_ - -#include <signal.h> - -#define ARCH_SIGHDLR_PARAM int sig - -#define ARCH_GET_SIGCONTEXT(sc, sig) \ - do sc = (struct sigcontext *) (&sig + 1); while(0) - -#endif - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */
diff --git a/arch/um/include/sysdep-x86_64/archsetjmp.h b/arch/um/include/sysdep-x86_64/archsetjmp.h new file mode 100644 index 0000000..9a5e1a6 --- /dev/null +++ b/arch/um/include/sysdep-x86_64/archsetjmp.h
@@ -0,0 +1,24 @@ +/* + * arch/x86_64/include/klibc/archsetjmp.h + */ + +#ifndef _KLIBC_ARCHSETJMP_H +#define _KLIBC_ARCHSETJMP_H + +struct __jmp_buf { + unsigned long __rbx; + unsigned long __rsp; + unsigned long __rbp; + unsigned long __r12; + unsigned long __r13; + unsigned long __r14; + unsigned long __r15; + unsigned long __rip; +}; + +typedef struct __jmp_buf jmp_buf[1]; + +#define JB_IP __rip +#define JB_SP __rsp + +#endif /* _SETJMP_H */
diff --git a/arch/um/include/sysdep-x86_64/ptrace.h b/arch/um/include/sysdep-x86_64/ptrace.h index 8d353f0..617bb9ef 100644 --- a/arch/um/include/sysdep-x86_64/ptrace.h +++ b/arch/um/include/sysdep-x86_64/ptrace.h
@@ -50,6 +50,21 @@ #define HOST_FS 25 #define HOST_GS 26 +/* Also defined in asm/ptrace-x86_64.h, but not in libc headers. So, these + * are already defined for kernel code, but not for userspace code. + */ +#ifndef FS_BASE +/* These aren't defined in ptrace.h, but exist in struct user_regs_struct, + * which is what x86_64 ptrace actually uses. + */ +#define FS_BASE (HOST_FS_BASE * sizeof(long)) +#define GS_BASE (HOST_GS_BASE * sizeof(long)) +#define DS (HOST_DS * sizeof(long)) +#define ES (HOST_ES * sizeof(long)) +#define FS (HOST_FS * sizeof(long)) +#define GS (HOST_GS * sizeof(long)) +#endif + #define REGS_FS_BASE(r) ((r)[HOST_FS_BASE]) #define REGS_GS_BASE(r) ((r)[HOST_GS_BASE]) #define REGS_DS(r) ((r)[HOST_DS]) @@ -89,9 +104,12 @@ #endif #ifdef UML_CONFIG_MODE_SKAS struct skas_regs { - /* XXX */ - unsigned long regs[27]; - unsigned long fp[65]; + /* x86_64 ptrace uses sizeof(user_regs_struct) as its register + * file size, while i386 uses FRAME_SIZE. Therefore, we need + * to use UM_FRAME_SIZE here instead of HOST_FRAME_SIZE. + */ + unsigned long regs[UM_FRAME_SIZE]; + unsigned long fp[HOST_FP_SIZE]; struct faultinfo faultinfo; long syscall; int is_user; @@ -120,11 +138,16 @@ #define UPT_R14(r) __CHOOSE_MODE(SC_R14(UPT_SC(r)), REGS_R14((r)->skas.regs)) #define UPT_R15(r) __CHOOSE_MODE(SC_R15(UPT_SC(r)), REGS_R15((r)->skas.regs)) #define UPT_CS(r) __CHOOSE_MODE(SC_CS(UPT_SC(r)), REGS_CS((r)->skas.regs)) +#define UPT_FS_BASE(r) \ + __CHOOSE_MODE(SC_FS_BASE(UPT_SC(r)), REGS_FS_BASE((r)->skas.regs)) #define UPT_FS(r) __CHOOSE_MODE(SC_FS(UPT_SC(r)), REGS_FS((r)->skas.regs)) +#define UPT_GS_BASE(r) \ + __CHOOSE_MODE(SC_GS_BASE(UPT_SC(r)), REGS_GS_BASE((r)->skas.regs)) #define UPT_GS(r) __CHOOSE_MODE(SC_GS(UPT_SC(r)), REGS_GS((r)->skas.regs)) #define UPT_DS(r) __CHOOSE_MODE(SC_DS(UPT_SC(r)), REGS_DS((r)->skas.regs)) #define UPT_ES(r) __CHOOSE_MODE(SC_ES(UPT_SC(r)), REGS_ES((r)->skas.regs)) #define UPT_CS(r) __CHOOSE_MODE(SC_CS(UPT_SC(r)), REGS_CS((r)->skas.regs)) +#define UPT_SS(r) __CHOOSE_MODE(SC_SS(UPT_SC(r)), REGS_SS((r)->skas.regs)) #define UPT_ORIG_RAX(r) \ __CHOOSE_MODE((r)->tt.orig_rax, REGS_ORIG_RAX((r)->skas.regs)) @@ -183,6 +206,13 @@ case RBP: val = UPT_RBP(regs); break; \ case ORIG_RAX: val = UPT_ORIG_RAX(regs); break; \ case CS: val = UPT_CS(regs); break; \ + case SS: val = UPT_SS(regs); break; \ + case FS_BASE: val = UPT_FS_BASE(regs); break; \ + case GS_BASE: val = UPT_GS_BASE(regs); break; \ + case DS: val = UPT_DS(regs); break; \ + case ES: val = UPT_ES(regs); break; \ + case FS : val = UPT_FS (regs); break; \ + case GS: val = UPT_GS(regs); break; \ case EFLAGS: val = UPT_EFLAGS(regs); break; \ default : \ panic("Bad register in UPT_REG : %d\n", reg); \ @@ -214,6 +244,13 @@ case RBP: UPT_RBP(regs) = __upt_val; break; \ case ORIG_RAX: UPT_ORIG_RAX(regs) = __upt_val; break; \ case CS: UPT_CS(regs) = __upt_val; break; \ + case SS: UPT_SS(regs) = __upt_val; break; \ + case FS_BASE: UPT_FS_BASE(regs) = __upt_val; break; \ + case GS_BASE: UPT_GS_BASE(regs) = __upt_val; break; \ + case DS: UPT_DS(regs) = __upt_val; break; \ + case ES: UPT_ES(regs) = __upt_val; break; \ + case FS: UPT_FS(regs) = __upt_val; break; \ + case GS: UPT_GS(regs) = __upt_val; break; \ case EFLAGS: UPT_EFLAGS(regs) = __upt_val; break; \ default : \ panic("Bad register in UPT_SET : %d\n", reg); \
diff --git a/arch/um/include/sysdep-x86_64/sc.h b/arch/um/include/sysdep-x86_64/sc.h index a160d9f..8aee45b 100644 --- a/arch/um/include/sysdep-x86_64/sc.h +++ b/arch/um/include/sysdep-x86_64/sc.h
@@ -35,11 +35,11 @@ #define SC_GS(sc) SC_OFFSET(sc, SC_GS) #define SC_EFLAGS(sc) SC_OFFSET(sc, SC_EFLAGS) #define SC_SIGMASK(sc) SC_OFFSET(sc, SC_SIGMASK) +#define SC_SS(sc) SC_OFFSET(sc, SC_SS) #if 0 #define SC_ORIG_RAX(sc) SC_OFFSET(sc, SC_ORIG_RAX) #define SC_DS(sc) SC_OFFSET(sc, SC_DS) #define SC_ES(sc) SC_OFFSET(sc, SC_ES) -#define SC_SS(sc) SC_OFFSET(sc, SC_SS) #endif #endif
diff --git a/arch/um/include/sysdep-x86_64/signal.h b/arch/um/include/sysdep-x86_64/signal.h deleted file mode 100644 index 6142897..0000000 --- a/arch/um/include/sysdep-x86_64/signal.h +++ /dev/null
@@ -1,29 +0,0 @@ -/* - * Copyright (C) 2004 PathScale, Inc - * Licensed under the GPL - */ - -#ifndef __X86_64_SIGNAL_H_ -#define __X86_64_SIGNAL_H_ - -#define ARCH_SIGHDLR_PARAM int sig - -#define ARCH_GET_SIGCONTEXT(sc, sig_addr) \ - do { \ - struct ucontext *__uc; \ - asm("movq %%rdx, %0" : "=r" (__uc)); \ - sc = (struct sigcontext *) &__uc->uc_mcontext; \ - } while(0) - -#endif - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */
diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile index a2d9306..6fa63a2 100644 --- a/arch/um/kernel/Makefile +++ b/arch/um/kernel/Makefile
@@ -7,7 +7,7 @@ clean-files := obj-y = config.o exec.o exitcode.o init_task.o irq.o ksyms.o mem.o \ - physmem.o process_kern.o ptrace.o reboot.o resource.o sigio.o \ + physmem.o process.o ptrace.o reboot.o resource.o sigio.o \ signal.o smp.o syscall.o sysrq.o time.o tlb.o trap.o uaccess.o \ um_arch.o umid.o
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c index fc38a6d..0561c43 100644 --- a/arch/um/kernel/exec.c +++ b/arch/um/kernel/exec.c
@@ -41,9 +41,11 @@ long error; #ifdef CONFIG_TTY_LOG - task_lock(current); + mutex_lock(&tty_mutex); + task_lock(current); /* FIXME: is this needed ? */ log_exec(argv, current->signal->tty); task_unlock(current); + mutex_unlock(&tty_mutex); #endif error = do_execve(file, argv, env, ¤t->thread.regs); if (error == 0){
diff --git a/arch/um/kernel/gmon_syms.c b/arch/um/kernel/gmon_syms.c index 2c86e7f..13aa115 100644 --- a/arch/um/kernel/gmon_syms.c +++ b/arch/um/kernel/gmon_syms.c
@@ -5,7 +5,7 @@ #include "linux/module.h" -extern void __bb_init_func(void *); +extern void __bb_init_func(void *) __attribute__((weak)); EXPORT_SYMBOL(__bb_init_func); /* This is defined (and referred to in profiling stub code) only by some GCC @@ -21,14 +21,3 @@ extern void __gcov_merge_add(void *) __attribute__((weak)); EXPORT_SYMBOL(__gcov_merge_add); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c index 589c69a..ce7f233 100644 --- a/arch/um/kernel/irq.c +++ b/arch/um/kernel/irq.c
@@ -142,19 +142,6 @@ .events = events, .current_events = 0 } ); - /* Critical section - locked by a spinlock because this stuff can - * be changed from interrupt handlers. The stuff above is done - * outside the lock because it allocates memory. - */ - - /* Actually, it only looks like it can be called from interrupt - * context. The culprit is reactivate_fd, which calls - * maybe_sigio_broken, which calls write_sigio_workaround, - * which calls activate_fd. However, write_sigio_workaround should - * only be called once, at boot time. That would make it clear that - * this is called only from process context, and can be locked with - * a semaphore. - */ spin_lock_irqsave(&irq_lock, flags); for (irq_fd = active_fds; irq_fd != NULL; irq_fd = irq_fd->next) { if ((irq_fd->fd == fd) && (irq_fd->type == type)) { @@ -165,7 +152,6 @@ } } - /*-------------*/ if (type == IRQ_WRITE) fd = -1; @@ -198,7 +184,6 @@ spin_lock_irqsave(&irq_lock, flags); } - /*-------------*/ *last_irq_ptr = new_fd; last_irq_ptr = &new_fd->next; @@ -210,14 +195,14 @@ */ maybe_sigio_broken(fd, (type == IRQ_READ)); - return(0); + return 0; out_unlock: spin_unlock_irqrestore(&irq_lock, flags); out_kfree: kfree(new_fd); out: - return(err); + return err; } static void free_irq_by_cb(int (*test)(struct irq_fd *, void *), void *arg) @@ -302,10 +287,7 @@ os_set_pollfd(i, irq->fd); spin_unlock_irqrestore(&irq_lock, flags); - /* This calls activate_fd, so it has to be outside the critical - * section. - */ - maybe_sigio_broken(fd, (irq->type == IRQ_READ)); + add_sigio_fd(fd); } void deactivate_fd(int fd, int irqnum) @@ -316,11 +298,15 @@ spin_lock_irqsave(&irq_lock, flags); irq = find_irq_by_fd(fd, irqnum, &i); - if (irq == NULL) - goto out; + if(irq == NULL){ + spin_unlock_irqrestore(&irq_lock, flags); + return; + } + os_set_pollfd(i, -1); - out: spin_unlock_irqrestore(&irq_lock, flags); + + ignore_sigio_fd(fd); } int deactivate_all_fds(void)
diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c index c97045d..f030e44 100644 --- a/arch/um/kernel/ksyms.c +++ b/arch/um/kernel/ksyms.c
@@ -21,7 +21,6 @@ #include "mem_user.h" #include "os.h" -EXPORT_SYMBOL(stop); EXPORT_SYMBOL(uml_physmem); EXPORT_SYMBOL(set_signals); EXPORT_SYMBOL(get_signals); @@ -41,12 +40,14 @@ EXPORT_SYMBOL(find_iomem); #ifdef CONFIG_MODE_TT +EXPORT_SYMBOL(stop); EXPORT_SYMBOL(strncpy_from_user_tt); EXPORT_SYMBOL(copy_from_user_tt); EXPORT_SYMBOL(copy_to_user_tt); #endif #ifdef CONFIG_MODE_SKAS +EXPORT_SYMBOL(strnlen_user_skas); EXPORT_SYMBOL(strncpy_from_user_skas); EXPORT_SYMBOL(copy_to_user_skas); EXPORT_SYMBOL(copy_from_user_skas);
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index 6128016..c95855b 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c
@@ -79,8 +79,10 @@ /* this will put all low memory onto the freelists */ totalram_pages = free_all_bootmem(); +#ifdef CONFIG_HIGHMEM totalhigh_pages = highmem >> PAGE_SHIFT; totalram_pages += totalhigh_pages; +#endif num_physpages = totalram_pages; max_pfn = totalram_pages; printk(KERN_INFO "Memory: %luk available\n", @@ -221,10 +223,14 @@ empty_zero_page = (unsigned long *) alloc_bootmem_low_pages(PAGE_SIZE); empty_bad_page = (unsigned long *) alloc_bootmem_low_pages(PAGE_SIZE); - for(i=0;i<sizeof(zones_size)/sizeof(zones_size[0]);i++) + for(i = 0; i < ARRAY_SIZE(zones_size); i++) zones_size[i] = 0; - zones_size[ZONE_DMA] = (end_iomem >> PAGE_SHIFT) - (uml_physmem >> PAGE_SHIFT); + + zones_size[ZONE_NORMAL] = (end_iomem >> PAGE_SHIFT) - + (uml_physmem >> PAGE_SHIFT); +#ifdef CONFIG_HIGHMEM zones_size[ZONE_HIGHMEM] = highmem >> PAGE_SHIFT; +#endif free_area_init(zones_size); /*
diff --git a/arch/um/kernel/process_kern.c b/arch/um/kernel/process.c similarity index 95% rename from arch/um/kernel/process_kern.c rename to arch/um/kernel/process.c index f6a5a50..fe6c64a 100644 --- a/arch/um/kernel/process_kern.c +++ b/arch/um/kernel/process.c
@@ -1,10 +1,9 @@ -/* +/* * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) * Copyright 2003 PathScale, Inc. * Licensed under the GPL */ -#include "linux/config.h" #include "linux/kernel.h" #include "linux/sched.h" #include "linux/interrupt.h" @@ -23,6 +22,7 @@ #include "linux/proc_fs.h" #include "linux/ptrace.h" #include "linux/random.h" +#include "linux/personality.h" #include "asm/unistd.h" #include "asm/mman.h" #include "asm/segment.h" @@ -112,11 +112,11 @@ void *_switch_to(void *prev, void *next, void *last) { - struct task_struct *from = prev; - struct task_struct *to= next; + struct task_struct *from = prev; + struct task_struct *to= next; - to->thread.prev_sched = from; - set_current(to); + to->thread.prev_sched = from; + set_current(to); do { current->thread.saved_task = NULL ; @@ -127,7 +127,7 @@ prev= current; } while(current->thread.saved_task); - return(current->thread.prev_sched); + return(current->thread.prev_sched); } @@ -141,19 +141,19 @@ { CHOOSE_MODE(release_thread_tt(task), release_thread_skas(task)); } - + void exit_thread(void) { unprotect_stack((unsigned long) current_thread); } - + void *get_current(void) { return(current); } int copy_thread(int nr, unsigned long clone_flags, unsigned long sp, - unsigned long stack_top, struct task_struct * p, + unsigned long stack_top, struct task_struct * p, struct pt_regs *regs) { int ret; @@ -182,11 +182,11 @@ int save_kmalloc_ok = kmalloc_ok; kmalloc_ok = 0; - CHOOSE_MODE_PROC(initial_thread_cb_tt, initial_thread_cb_skas, proc, + CHOOSE_MODE_PROC(initial_thread_cb_tt, initial_thread_cb_skas, proc, arg); kmalloc_ok = save_kmalloc_ok; } - + unsigned long stack_sp(unsigned long page) { return(page + PAGE_SIZE - sizeof(void *)); @@ -210,7 +210,7 @@ */ if(need_resched()) schedule(); - + idle_sleep(10); } } @@ -225,7 +225,7 @@ return(PAGE_SIZE); } -void *um_virt_to_phys(struct task_struct *task, unsigned long addr, +void *um_virt_to_phys(struct task_struct *task, unsigned long addr, pte_t *pte_out) { pgd_t *pgd; @@ -234,7 +234,7 @@ pte_t *pte; pte_t ptent; - if(task->mm == NULL) + if(task->mm == NULL) return(ERR_PTR(-EINVAL)); pgd = pgd_offset(task->mm, addr); if(!pgd_present(*pgd)) @@ -245,7 +245,7 @@ return(ERR_PTR(-EINVAL)); pmd = pmd_offset(pud, addr); - if(!pmd_present(*pmd)) + if(!pmd_present(*pmd)) return(ERR_PTR(-EINVAL)); pte = pte_offset_kernel(pmd, addr); @@ -270,7 +270,7 @@ void force_sigbus(void) { - printk(KERN_ERR "Killing pid %d because of a lack of memory\n", + printk(KERN_ERR "Killing pid %d because of a lack of memory\n", current->pid); lock_kernel(); sigaddset(¤t->pending.signal, SIGBUS); @@ -476,7 +476,7 @@ #ifndef arch_align_stack unsigned long arch_align_stack(unsigned long sp) { - if (randomize_va_space) + if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) sp -= get_random_int() % 8192; return sp & ~0xf; }
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c index 3ef73bf..f602623 100644 --- a/arch/um/kernel/reboot.c +++ b/arch/um/kernel/reboot.c
@@ -22,7 +22,7 @@ struct task_struct *p; int i; - for(i = 0; i < sizeof(idle_threads)/sizeof(idle_threads[0]); i++){ + for(i = 0; i < ARRAY_SIZE(idle_threads); i++){ p = idle_threads[i]; if((p != NULL) && (p->thread.mode.tt.extern_pid != me)) os_kill_process(p->thread.mode.tt.extern_pid, 0); @@ -62,14 +62,3 @@ { machine_power_off(); } - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */
diff --git a/arch/um/kernel/skas/Makefile b/arch/um/kernel/skas/Makefile index ea3a8e4..3e3fa7e 100644 --- a/arch/um/kernel/skas/Makefile +++ b/arch/um/kernel/skas/Makefile
@@ -3,8 +3,7 @@ # Licensed under the GPL # -obj-y := clone.o exec_kern.o mem.o mmu.o process_kern.o \ - syscall.o tlb.o uaccess.o +obj-y := clone.o exec.o mem.o mmu.o process.o syscall.o tlb.o uaccess.o # clone.o is in the stub, so it can't be built with profiling # GCC hardened also auto-enables -fpic, but we need %ebx so it can't work ->
diff --git a/arch/um/kernel/skas/exec.c b/arch/um/kernel/skas/exec.c new file mode 100644 index 0000000..54b7959 --- /dev/null +++ b/arch/um/kernel/skas/exec.c
@@ -0,0 +1,30 @@ +/* + * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#include "linux/kernel.h" +#include "asm/current.h" +#include "asm/page.h" +#include "asm/signal.h" +#include "asm/ptrace.h" +#include "asm/uaccess.h" +#include "asm/mmu_context.h" +#include "tlb.h" +#include "skas.h" +#include "um_mmu.h" +#include "os.h" + +void flush_thread_skas(void) +{ + force_flush_all(); + switch_mm_skas(¤t->mm->context.skas.id); +} + +void start_thread_skas(struct pt_regs *regs, unsigned long eip, + unsigned long esp) +{ + set_fs(USER_DS); + PT_REGS_IP(regs) = eip; + PT_REGS_SP(regs) = esp; +}
diff --git a/arch/um/kernel/skas/exec_kern.c b/arch/um/kernel/skas/exec_kern.c deleted file mode 100644 index 77ed7bb..0000000 --- a/arch/um/kernel/skas/exec_kern.c +++ /dev/null
@@ -1,41 +0,0 @@ -/* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) - * Licensed under the GPL - */ - -#include "linux/kernel.h" -#include "asm/current.h" -#include "asm/page.h" -#include "asm/signal.h" -#include "asm/ptrace.h" -#include "asm/uaccess.h" -#include "asm/mmu_context.h" -#include "tlb.h" -#include "skas.h" -#include "um_mmu.h" -#include "os.h" - -void flush_thread_skas(void) -{ - force_flush_all(); - switch_mm_skas(¤t->mm->context.skas.id); -} - -void start_thread_skas(struct pt_regs *regs, unsigned long eip, - unsigned long esp) -{ - set_fs(USER_DS); - PT_REGS_IP(regs) = eip; - PT_REGS_SP(regs) = esp; -} - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c index 624ca23..79c2270 100644 --- a/arch/um/kernel/skas/mmu.c +++ b/arch/um/kernel/skas/mmu.c
@@ -55,7 +55,7 @@ * destroy_context_skas. */ - mm->context.skas.last_page_table = pmd_page_kernel(*pmd); + mm->context.skas.last_page_table = pmd_page_vaddr(*pmd); #ifdef CONFIG_3_LEVEL_PGTABLES mm->context.skas.last_pmd = (unsigned long) __va(pud_val(*pud)); #endif
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c new file mode 100644 index 0000000..ae4fa71 --- /dev/null +++ b/arch/um/kernel/skas/process.c
@@ -0,0 +1,217 @@ +/* + * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#include "linux/sched.h" +#include "linux/slab.h" +#include "linux/ptrace.h" +#include "linux/proc_fs.h" +#include "linux/file.h" +#include "linux/errno.h" +#include "linux/init.h" +#include "asm/uaccess.h" +#include "asm/atomic.h" +#include "kern_util.h" +#include "skas.h" +#include "os.h" +#include "user_util.h" +#include "tlb.h" +#include "kern.h" +#include "mode.h" +#include "registers.h" + +void switch_to_skas(void *prev, void *next) +{ + struct task_struct *from, *to; + + from = prev; + to = next; + + /* XXX need to check runqueues[cpu].idle */ + if(current->pid == 0) + switch_timers(0); + + switch_threads(&from->thread.mode.skas.switch_buf, + &to->thread.mode.skas.switch_buf); + + arch_switch_to_skas(current->thread.prev_sched, current); + + if(current->pid == 0) + switch_timers(1); +} + +extern void schedule_tail(struct task_struct *prev); + +/* This is called magically, by its address being stuffed in a jmp_buf + * and being longjmp-d to. + */ +void new_thread_handler(void) +{ + int (*fn)(void *), n; + void *arg; + + if(current->thread.prev_sched != NULL) + schedule_tail(current->thread.prev_sched); + current->thread.prev_sched = NULL; + + fn = current->thread.request.u.thread.proc; + arg = current->thread.request.u.thread.arg; + + /* The return value is 1 if the kernel thread execs a process, + * 0 if it just exits + */ + n = run_kernel_thread(fn, arg, ¤t->thread.exec_buf); + if(n == 1){ + /* Handle any immediate reschedules or signals */ + interrupt_end(); + userspace(¤t->thread.regs.regs); + } + else do_exit(0); +} + +void release_thread_skas(struct task_struct *task) +{ +} + +/* Called magically, see new_thread_handler above */ +void fork_handler(void) +{ + force_flush_all(); + if(current->thread.prev_sched == NULL) + panic("blech"); + + schedule_tail(current->thread.prev_sched); + + /* XXX: if interrupt_end() calls schedule, this call to + * arch_switch_to_skas isn't needed. We could want to apply this to + * improve performance. -bb */ + arch_switch_to_skas(current->thread.prev_sched, current); + + current->thread.prev_sched = NULL; + +/* Handle any immediate reschedules or signals */ + interrupt_end(); + + userspace(¤t->thread.regs.regs); +} + +int copy_thread_skas(int nr, unsigned long clone_flags, unsigned long sp, + unsigned long stack_top, struct task_struct * p, + struct pt_regs *regs) +{ + void (*handler)(void); + + if(current->thread.forking){ + memcpy(&p->thread.regs.regs.skas, ®s->regs.skas, + sizeof(p->thread.regs.regs.skas)); + REGS_SET_SYSCALL_RETURN(p->thread.regs.regs.skas.regs, 0); + if(sp != 0) REGS_SP(p->thread.regs.regs.skas.regs) = sp; + + handler = fork_handler; + + arch_copy_thread(¤t->thread.arch, &p->thread.arch); + } + else { + init_thread_registers(&p->thread.regs.regs); + p->thread.request.u.thread = current->thread.request.u.thread; + handler = new_thread_handler; + } + + new_thread(task_stack_page(p), &p->thread.mode.skas.switch_buf, + handler); + return(0); +} + +int new_mm(unsigned long stack) +{ + int fd; + + fd = os_open_file("/proc/mm", of_cloexec(of_write(OPENFLAGS())), 0); + if(fd < 0) + return(fd); + + if(skas_needs_stub) + map_stub_pages(fd, CONFIG_STUB_CODE, CONFIG_STUB_DATA, stack); + + return(fd); +} + +void init_idle_skas(void) +{ + cpu_tasks[current_thread->cpu].pid = os_getpid(); + default_idle(); +} + +extern void start_kernel(void); + +static int start_kernel_proc(void *unused) +{ + int pid; + + block_signals(); + pid = os_getpid(); + + cpu_tasks[0].pid = pid; + cpu_tasks[0].task = current; +#ifdef CONFIG_SMP + cpu_online_map = cpumask_of_cpu(0); +#endif + start_kernel(); + return(0); +} + +extern int userspace_pid[]; + +int start_uml_skas(void) +{ + if(proc_mm) + userspace_pid[0] = start_userspace(0); + + init_new_thread_signals(); + + init_task.thread.request.u.thread.proc = start_kernel_proc; + init_task.thread.request.u.thread.arg = NULL; + return(start_idle_thread(task_stack_page(&init_task), + &init_task.thread.mode.skas.switch_buf)); +} + +int external_pid_skas(struct task_struct *task) +{ +#warning Need to look up userspace_pid by cpu + return(userspace_pid[0]); +} + +int thread_pid_skas(struct task_struct *task) +{ +#warning Need to look up userspace_pid by cpu + return(userspace_pid[0]); +} + +void kill_off_processes_skas(void) +{ + if(proc_mm) +#warning need to loop over userspace_pids in kill_off_processes_skas + os_kill_ptraced_process(userspace_pid[0], 1); + else { + struct task_struct *p; + int pid, me; + + me = os_getpid(); + for_each_process(p){ + if(p->mm == NULL) + continue; + + pid = p->mm->context.skas.id.u.pid; + os_kill_ptraced_process(pid, 1); + } + } +} + +unsigned long current_stub_stack(void) +{ + if(current->mm == NULL) + return(0); + + return(current->mm->context.skas.id.stack); +}
diff --git a/arch/um/kernel/skas/process_kern.c b/arch/um/kernel/skas/process_kern.c index 55caeec..0f3d5d0 100644 --- a/arch/um/kernel/skas/process_kern.c +++ b/arch/um/kernel/skas/process_kern.c
@@ -1,227 +1,484 @@ /* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) + * Copyright 2003 PathScale, Inc. * Licensed under the GPL */ +#include "linux/config.h" +#include "linux/kernel.h" #include "linux/sched.h" +#include "linux/interrupt.h" +#include "linux/string.h" +#include "linux/mm.h" #include "linux/slab.h" -#include "linux/ptrace.h" -#include "linux/proc_fs.h" -#include "linux/file.h" -#include "linux/errno.h" +#include "linux/utsname.h" +#include "linux/fs.h" +#include "linux/utime.h" +#include "linux/smp_lock.h" +#include "linux/module.h" #include "linux/init.h" +#include "linux/capability.h" +#include "linux/vmalloc.h" +#include "linux/spinlock.h" +#include "linux/proc_fs.h" +#include "linux/ptrace.h" +#include "linux/random.h" +#include "linux/personality.h" +#include "asm/unistd.h" +#include "asm/mman.h" +#include "asm/segment.h" +#include "asm/stat.h" +#include "asm/pgtable.h" +#include "asm/processor.h" +#include "asm/tlbflush.h" #include "asm/uaccess.h" -#include "asm/atomic.h" -#include "kern_util.h" -#include "skas.h" -#include "os.h" +#include "asm/user.h" #include "user_util.h" -#include "tlb.h" +#include "kern_util.h" #include "kern.h" +#include "signal_kern.h" +#include "init.h" +#include "irq_user.h" +#include "mem_user.h" +#include "tlb.h" +#include "frame_kern.h" +#include "sigcontext.h" +#include "os.h" #include "mode.h" -#include "registers.h" +#include "mode_kern.h" +#include "choose-mode.h" -void switch_to_skas(void *prev, void *next) +/* This is a per-cpu array. A processor only modifies its entry and it only + * cares about its entry, so it's OK if another processor is modifying its + * entry. + */ +struct cpu_task cpu_tasks[NR_CPUS] = { [0 ... NR_CPUS - 1] = { -1, NULL } }; + +int external_pid(void *t) { - struct task_struct *from, *to; + struct task_struct *task = t ? t : current; - from = prev; - to = next; - - /* XXX need to check runqueues[cpu].idle */ - if(current->pid == 0) - switch_timers(0); - - switch_threads(&from->thread.mode.skas.switch_buf, - to->thread.mode.skas.switch_buf); - - arch_switch_to_skas(current->thread.prev_sched, current); - - if(current->pid == 0) - switch_timers(1); + return(CHOOSE_MODE_PROC(external_pid_tt, external_pid_skas, task)); } -extern void schedule_tail(struct task_struct *prev); - -void new_thread_handler(int sig) +int pid_to_processor_id(int pid) { - int (*fn)(void *), n; - void *arg; + int i; - fn = current->thread.request.u.thread.proc; - arg = current->thread.request.u.thread.arg; - os_usr1_signal(1); - thread_wait(¤t->thread.mode.skas.switch_buf, - current->thread.mode.skas.fork_buf); - - if(current->thread.prev_sched != NULL) - schedule_tail(current->thread.prev_sched); - current->thread.prev_sched = NULL; - - /* The return value is 1 if the kernel thread execs a process, - * 0 if it just exits - */ - n = run_kernel_thread(fn, arg, ¤t->thread.exec_buf); - if(n == 1){ - /* Handle any immediate reschedules or signals */ - interrupt_end(); - userspace(¤t->thread.regs.regs); + for(i = 0; i < ncpus; i++){ + if(cpu_tasks[i].pid == pid) return(i); } - else do_exit(0); + return(-1); } -void new_thread_proc(void *stack, void (*handler)(int sig)) +void free_stack(unsigned long stack, int order) { - init_new_thread_stack(stack, handler); - os_usr1_process(os_getpid()); + free_pages(stack, order); } -void release_thread_skas(struct task_struct *task) +unsigned long alloc_stack(int order, int atomic) { + unsigned long page; + gfp_t flags = GFP_KERNEL; + + if (atomic) + flags = GFP_ATOMIC; + page = __get_free_pages(flags, order); + if(page == 0) + return(0); + stack_protections(page); + return(page); } -void fork_handler(int sig) -{ - os_usr1_signal(1); - thread_wait(¤t->thread.mode.skas.switch_buf, - current->thread.mode.skas.fork_buf); - - force_flush_all(); - if(current->thread.prev_sched == NULL) - panic("blech"); - - schedule_tail(current->thread.prev_sched); - - /* XXX: if interrupt_end() calls schedule, this call to - * arch_switch_to_skas isn't needed. We could want to apply this to - * improve performance. -bb */ - arch_switch_to_skas(current->thread.prev_sched, current); - - current->thread.prev_sched = NULL; - -/* Handle any immediate reschedules or signals */ - interrupt_end(); - - userspace(¤t->thread.regs.regs); -} - -int copy_thread_skas(int nr, unsigned long clone_flags, unsigned long sp, - unsigned long stack_top, struct task_struct * p, - struct pt_regs *regs) -{ - void (*handler)(int); - - if(current->thread.forking){ - memcpy(&p->thread.regs.regs.skas, ®s->regs.skas, - sizeof(p->thread.regs.regs.skas)); - REGS_SET_SYSCALL_RETURN(p->thread.regs.regs.skas.regs, 0); - if(sp != 0) REGS_SP(p->thread.regs.regs.skas.regs) = sp; - - handler = fork_handler; - - arch_copy_thread(¤t->thread.arch, &p->thread.arch); - } - else { - init_thread_registers(&p->thread.regs.regs); - p->thread.request.u.thread = current->thread.request.u.thread; - handler = new_thread_handler; - } - - new_thread(task_stack_page(p), &p->thread.mode.skas.switch_buf, - &p->thread.mode.skas.fork_buf, handler); - return(0); -} - -int new_mm(unsigned long stack) -{ - int fd; - - fd = os_open_file("/proc/mm", of_cloexec(of_write(OPENFLAGS())), 0); - if(fd < 0) - return(fd); - - if(skas_needs_stub) - map_stub_pages(fd, CONFIG_STUB_CODE, CONFIG_STUB_DATA, stack); - - return(fd); -} - -void init_idle_skas(void) -{ - cpu_tasks[current_thread->cpu].pid = os_getpid(); - default_idle(); -} - -extern void start_kernel(void); - -static int start_kernel_proc(void *unused) +int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) { int pid; - block_signals(); - pid = os_getpid(); - - cpu_tasks[0].pid = pid; - cpu_tasks[0].task = current; -#ifdef CONFIG_SMP - cpu_online_map = cpumask_of_cpu(0); -#endif - start_kernel(); - return(0); + current->thread.request.u.thread.proc = fn; + current->thread.request.u.thread.arg = arg; + pid = do_fork(CLONE_VM | CLONE_UNTRACED | flags, 0, + ¤t->thread.regs, 0, NULL, NULL); + if(pid < 0) + panic("do_fork failed in kernel_thread, errno = %d", pid); + return(pid); } -extern int userspace_pid[]; - -int start_uml_skas(void) +void set_current(void *t) { - if(proc_mm) - userspace_pid[0] = start_userspace(0); + struct task_struct *task = t; - init_new_thread_signals(); - - init_task.thread.request.u.thread.proc = start_kernel_proc; - init_task.thread.request.u.thread.arg = NULL; - return(start_idle_thread(task_stack_page(&init_task), - &init_task.thread.mode.skas.switch_buf, - &init_task.thread.mode.skas.fork_buf)); + cpu_tasks[task_thread_info(task)->cpu] = ((struct cpu_task) + { external_pid(task), task }); } -int external_pid_skas(struct task_struct *task) +void *_switch_to(void *prev, void *next, void *last) { -#warning Need to look up userspace_pid by cpu - return(userspace_pid[0]); + struct task_struct *from = prev; + struct task_struct *to= next; + + to->thread.prev_sched = from; + set_current(to); + + do { + current->thread.saved_task = NULL ; + CHOOSE_MODE_PROC(switch_to_tt, switch_to_skas, prev, next); + if(current->thread.saved_task) + show_regs(&(current->thread.regs)); + next= current->thread.saved_task; + prev= current; + } while(current->thread.saved_task); + + return(current->thread.prev_sched); + } -int thread_pid_skas(struct task_struct *task) +void interrupt_end(void) { -#warning Need to look up userspace_pid by cpu - return(userspace_pid[0]); + if(need_resched()) schedule(); + if(test_tsk_thread_flag(current, TIF_SIGPENDING)) do_signal(); } -void kill_off_processes_skas(void) +void release_thread(struct task_struct *task) { - if(proc_mm) -#warning need to loop over userspace_pids in kill_off_processes_skas - os_kill_ptraced_process(userspace_pid[0], 1); - else { - struct task_struct *p; - int pid, me; + CHOOSE_MODE(release_thread_tt(task), release_thread_skas(task)); +} - me = os_getpid(); - for_each_process(p){ - if(p->mm == NULL) - continue; +void exit_thread(void) +{ + unprotect_stack((unsigned long) current_thread); +} - pid = p->mm->context.skas.id.u.pid; - os_kill_ptraced_process(pid, 1); - } +void *get_current(void) +{ + return(current); +} + +int copy_thread(int nr, unsigned long clone_flags, unsigned long sp, + unsigned long stack_top, struct task_struct * p, + struct pt_regs *regs) +{ + int ret; + + p->thread = (struct thread_struct) INIT_THREAD; + ret = CHOOSE_MODE_PROC(copy_thread_tt, copy_thread_skas, nr, + clone_flags, sp, stack_top, p, regs); + + if (ret || !current->thread.forking) + goto out; + + clear_flushed_tls(p); + + /* + * Set a new TLS for the child thread? + */ + if (clone_flags & CLONE_SETTLS) + ret = arch_copy_tls(p); + +out: + return ret; +} + +void initial_thread_cb(void (*proc)(void *), void *arg) +{ + int save_kmalloc_ok = kmalloc_ok; + + kmalloc_ok = 0; + CHOOSE_MODE_PROC(initial_thread_cb_tt, initial_thread_cb_skas, proc, + arg); + kmalloc_ok = save_kmalloc_ok; +} + +unsigned long stack_sp(unsigned long page) +{ + return(page + PAGE_SIZE - sizeof(void *)); +} + +int current_pid(void) +{ + return(current->pid); +} + +void default_idle(void) +{ + CHOOSE_MODE(uml_idle_timer(), (void) 0); + + while(1){ + /* endless idle loop with no priority at all */ + + /* + * although we are an idle CPU, we do not want to + * get into the scheduler unnecessarily. + */ + if(need_resched()) + schedule(); + + idle_sleep(10); } } -unsigned long current_stub_stack(void) +void cpu_idle(void) { - if(current->mm == NULL) + CHOOSE_MODE(init_idle_tt(), init_idle_skas()); +} + +int page_size(void) +{ + return(PAGE_SIZE); +} + +void *um_virt_to_phys(struct task_struct *task, unsigned long addr, + pte_t *pte_out) +{ + pgd_t *pgd; + pud_t *pud; + pmd_t *pmd; + pte_t *pte; + pte_t ptent; + + if(task->mm == NULL) + return(ERR_PTR(-EINVAL)); + pgd = pgd_offset(task->mm, addr); + if(!pgd_present(*pgd)) + return(ERR_PTR(-EINVAL)); + + pud = pud_offset(pgd, addr); + if(!pud_present(*pud)) + return(ERR_PTR(-EINVAL)); + + pmd = pmd_offset(pud, addr); + if(!pmd_present(*pmd)) + return(ERR_PTR(-EINVAL)); + + pte = pte_offset_kernel(pmd, addr); + ptent = *pte; + if(!pte_present(ptent)) + return(ERR_PTR(-EINVAL)); + + if(pte_out != NULL) + *pte_out = ptent; + return((void *) (pte_val(ptent) & PAGE_MASK) + (addr & ~PAGE_MASK)); +} + +char *current_cmd(void) +{ +#if defined(CONFIG_SMP) || defined(CONFIG_HIGHMEM) + return("(Unknown)"); +#else + void *addr = um_virt_to_phys(current, current->mm->arg_start, NULL); + return IS_ERR(addr) ? "(Unknown)": __va((unsigned long) addr); +#endif +} + +void force_sigbus(void) +{ + printk(KERN_ERR "Killing pid %d because of a lack of memory\n", + current->pid); + lock_kernel(); + sigaddset(¤t->pending.signal, SIGBUS); + recalc_sigpending(); + current->flags |= PF_SIGNALED; + do_exit(SIGBUS | 0x80); +} + +void dump_thread(struct pt_regs *regs, struct user *u) +{ +} + +void enable_hlt(void) +{ + panic("enable_hlt"); +} + +EXPORT_SYMBOL(enable_hlt); + +void disable_hlt(void) +{ + panic("disable_hlt"); +} + +EXPORT_SYMBOL(disable_hlt); + +void *um_kmalloc(int size) +{ + return kmalloc(size, GFP_KERNEL); +} + +void *um_kmalloc_atomic(int size) +{ + return kmalloc(size, GFP_ATOMIC); +} + +void *um_vmalloc(int size) +{ + return vmalloc(size); +} + +void *um_vmalloc_atomic(int size) +{ + return __vmalloc(size, GFP_ATOMIC | __GFP_HIGHMEM, PAGE_KERNEL); +} + +int __cant_sleep(void) { + return in_atomic() || irqs_disabled() || in_interrupt(); + /* Is in_interrupt() really needed? */ +} + +unsigned long get_fault_addr(void) +{ + return((unsigned long) current->thread.fault_addr); +} + +EXPORT_SYMBOL(get_fault_addr); + +void not_implemented(void) +{ + printk(KERN_DEBUG "Something isn't implemented in here\n"); +} + +EXPORT_SYMBOL(not_implemented); + +int user_context(unsigned long sp) +{ + unsigned long stack; + + stack = sp & (PAGE_MASK << CONFIG_KERNEL_STACK_ORDER); + return(stack != (unsigned long) current_thread); +} + +extern exitcall_t __uml_exitcall_begin, __uml_exitcall_end; + +void do_uml_exitcalls(void) +{ + exitcall_t *call; + + call = &__uml_exitcall_end; + while (--call >= &__uml_exitcall_begin) + (*call)(); +} + +char *uml_strdup(char *string) +{ + return kstrdup(string, GFP_KERNEL); +} + +int copy_to_user_proc(void __user *to, void *from, int size) +{ + return(copy_to_user(to, from, size)); +} + +int copy_from_user_proc(void *to, void __user *from, int size) +{ + return(copy_from_user(to, from, size)); +} + +int clear_user_proc(void __user *buf, int size) +{ + return(clear_user(buf, size)); +} + +int strlen_user_proc(char __user *str) +{ + return(strlen_user(str)); +} + +int smp_sigio_handler(void) +{ +#ifdef CONFIG_SMP + int cpu = current_thread->cpu; + IPI_handler(cpu); + if(cpu != 0) + return(1); +#endif + return(0); +} + +int cpu(void) +{ + return(current_thread->cpu); +} + +static atomic_t using_sysemu = ATOMIC_INIT(0); +int sysemu_supported; + +void set_using_sysemu(int value) +{ + if (value > sysemu_supported) + return; + atomic_set(&using_sysemu, value); +} + +int get_using_sysemu(void) +{ + return atomic_read(&using_sysemu); +} + +static int proc_read_sysemu(char *buf, char **start, off_t offset, int size,int *eof, void *data) +{ + if (snprintf(buf, size, "%d\n", get_using_sysemu()) < size) /*No overflow*/ + *eof = 1; + + return strlen(buf); +} + +static int proc_write_sysemu(struct file *file,const char __user *buf, unsigned long count,void *data) +{ + char tmp[2]; + + if (copy_from_user(tmp, buf, 1)) + return -EFAULT; + + if (tmp[0] >= '0' && tmp[0] <= '2') + set_using_sysemu(tmp[0] - '0'); + return count; /*We use the first char, but pretend to write everything*/ +} + +int __init make_proc_sysemu(void) +{ + struct proc_dir_entry *ent; + if (!sysemu_supported) + return 0; + + ent = create_proc_entry("sysemu", 0600, &proc_root); + + if (ent == NULL) + { + printk(KERN_WARNING "Failed to register /proc/sysemu\n"); + return(0); + } + + ent->read_proc = proc_read_sysemu; + ent->write_proc = proc_write_sysemu; + + return 0; +} + +late_initcall(make_proc_sysemu); + +int singlestepping(void * t) +{ + struct task_struct *task = t ? t : current; + + if ( ! (task->ptrace & PT_DTRACE) ) return(0); - return(current->mm->context.skas.id.stack); + if (task->thread.singlestep_syscall) + return(1); + + return 2; } + +/* + * Only x86 and x86_64 have an arch_align_stack(). + * All other arches have "#define arch_align_stack(x) (x)" + * in their asm/system.h + * As this is included in UML from asm-um/system-generic.h, + * we can use it to behave as the subarch does. + */ +#ifndef arch_align_stack +unsigned long arch_align_stack(unsigned long sp) +{ + if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) + sp -= get_random_int() % 8192; + return sp & ~0xf; +} +#endif
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c index 552ca1c..820affb 100644 --- a/arch/um/kernel/time.c +++ b/arch/um/kernel/time.c
@@ -35,9 +35,6 @@ return (unsigned long long)jiffies_64 * (1000000000 / HZ); } -/* Changed at early boot */ -int timer_irq_inited = 0; - static unsigned long long prev_nsecs; #ifdef CONFIG_UML_REAL_TIME_CLOCK static long long delta; /* Deviation per interval */ @@ -98,7 +95,7 @@ do_timer(regs); - nsecs = get_time() + local_offset; + nsecs = get_time(); xtime.tv_sec = nsecs / NSEC_PER_SEC; xtime.tv_nsec = nsecs - xtime.tv_sec * NSEC_PER_SEC; @@ -113,12 +110,13 @@ err = request_irq(TIMER_IRQ, um_timer, IRQF_DISABLED, "timer", NULL); if(err != 0) - printk(KERN_ERR "timer_init : request_irq failed - " + printk(KERN_ERR "register_timer : request_irq failed - " "errno = %d\n", -err); - timer_irq_inited = 1; - - user_time_init(); + err = set_interval(1); + if(err != 0) + printk(KERN_ERR "register_timer : set_interval failed - " + "errno = %d\n", -err); } extern void (*late_time_init)(void);
diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c index f5b0636..54a5ff2 100644 --- a/arch/um/kernel/tlb.c +++ b/arch/um/kernel/tlb.c
@@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) * Licensed under the GPL */ @@ -16,12 +16,12 @@ #include "os.h" static int add_mmap(unsigned long virt, unsigned long phys, unsigned long len, - int r, int w, int x, struct host_vm_op *ops, int *index, + int r, int w, int x, struct host_vm_op *ops, int *index, int last_filled, union mm_context *mmu, void **flush, int (*do_ops)(union mm_context *, struct host_vm_op *, int, int, void **)) { - __u64 offset; + __u64 offset; struct host_vm_op *last; int fd, ret = 0; @@ -89,7 +89,7 @@ static int add_mprotect(unsigned long addr, unsigned long len, int r, int w, int x, struct host_vm_op *ops, int *index, int last_filled, union mm_context *mmu, void **flush, - int (*do_ops)(union mm_context *, struct host_vm_op *, + int (*do_ops)(union mm_context *, struct host_vm_op *, int, int, void **)) { struct host_vm_op *last; @@ -124,105 +124,105 @@ #define ADD_ROUND(n, inc) (((n) + (inc)) & ~((inc) - 1)) void fix_range_common(struct mm_struct *mm, unsigned long start_addr, - unsigned long end_addr, int force, + unsigned long end_addr, int force, int (*do_ops)(union mm_context *, struct host_vm_op *, int, int, void **)) { - pgd_t *npgd; - pud_t *npud; - pmd_t *npmd; - pte_t *npte; - union mm_context *mmu = &mm->context; - unsigned long addr, end; - int r, w, x; - struct host_vm_op ops[1]; - void *flush = NULL; - int op_index = -1, last_op = sizeof(ops) / sizeof(ops[0]) - 1; - int ret = 0; + pgd_t *npgd; + pud_t *npud; + pmd_t *npmd; + pte_t *npte; + union mm_context *mmu = &mm->context; + unsigned long addr, end; + int r, w, x; + struct host_vm_op ops[1]; + void *flush = NULL; + int op_index = -1, last_op = ARRAY_SIZE(ops) - 1; + int ret = 0; - if(mm == NULL) return; + if(mm == NULL) + return; - ops[0].type = NONE; - for(addr = start_addr; addr < end_addr && !ret;){ - npgd = pgd_offset(mm, addr); - if(!pgd_present(*npgd)){ - end = ADD_ROUND(addr, PGDIR_SIZE); - if(end > end_addr) - end = end_addr; - if(force || pgd_newpage(*npgd)){ - ret = add_munmap(addr, end - addr, ops, - &op_index, last_op, mmu, - &flush, do_ops); - pgd_mkuptodate(*npgd); - } - addr = end; - continue; - } + ops[0].type = NONE; + for(addr = start_addr; addr < end_addr && !ret;){ + npgd = pgd_offset(mm, addr); + if(!pgd_present(*npgd)){ + end = ADD_ROUND(addr, PGDIR_SIZE); + if(end > end_addr) + end = end_addr; + if(force || pgd_newpage(*npgd)){ + ret = add_munmap(addr, end - addr, ops, + &op_index, last_op, mmu, + &flush, do_ops); + pgd_mkuptodate(*npgd); + } + addr = end; + continue; + } - npud = pud_offset(npgd, addr); - if(!pud_present(*npud)){ - end = ADD_ROUND(addr, PUD_SIZE); - if(end > end_addr) - end = end_addr; - if(force || pud_newpage(*npud)){ - ret = add_munmap(addr, end - addr, ops, - &op_index, last_op, mmu, - &flush, do_ops); - pud_mkuptodate(*npud); - } - addr = end; - continue; - } + npud = pud_offset(npgd, addr); + if(!pud_present(*npud)){ + end = ADD_ROUND(addr, PUD_SIZE); + if(end > end_addr) + end = end_addr; + if(force || pud_newpage(*npud)){ + ret = add_munmap(addr, end - addr, ops, + &op_index, last_op, mmu, + &flush, do_ops); + pud_mkuptodate(*npud); + } + addr = end; + continue; + } - npmd = pmd_offset(npud, addr); - if(!pmd_present(*npmd)){ - end = ADD_ROUND(addr, PMD_SIZE); - if(end > end_addr) - end = end_addr; - if(force || pmd_newpage(*npmd)){ - ret = add_munmap(addr, end - addr, ops, - &op_index, last_op, mmu, - &flush, do_ops); - pmd_mkuptodate(*npmd); - } - addr = end; - continue; - } + npmd = pmd_offset(npud, addr); + if(!pmd_present(*npmd)){ + end = ADD_ROUND(addr, PMD_SIZE); + if(end > end_addr) + end = end_addr; + if(force || pmd_newpage(*npmd)){ + ret = add_munmap(addr, end - addr, ops, + &op_index, last_op, mmu, + &flush, do_ops); + pmd_mkuptodate(*npmd); + } + addr = end; + continue; + } - npte = pte_offset_kernel(npmd, addr); - r = pte_read(*npte); - w = pte_write(*npte); - x = pte_exec(*npte); + npte = pte_offset_kernel(npmd, addr); + r = pte_read(*npte); + w = pte_write(*npte); + x = pte_exec(*npte); if (!pte_young(*npte)) { r = 0; w = 0; } else if (!pte_dirty(*npte)) { w = 0; } - if(force || pte_newpage(*npte)){ - if(pte_present(*npte)) - ret = add_mmap(addr, - pte_val(*npte) & PAGE_MASK, - PAGE_SIZE, r, w, x, ops, - &op_index, last_op, mmu, - &flush, do_ops); + if(force || pte_newpage(*npte)){ + if(pte_present(*npte)) + ret = add_mmap(addr, + pte_val(*npte) & PAGE_MASK, + PAGE_SIZE, r, w, x, ops, + &op_index, last_op, mmu, + &flush, do_ops); else ret = add_munmap(addr, PAGE_SIZE, ops, &op_index, last_op, mmu, &flush, do_ops); - } - else if(pte_newprot(*npte)) + } + else if(pte_newprot(*npte)) ret = add_mprotect(addr, PAGE_SIZE, r, w, x, ops, &op_index, last_op, mmu, &flush, do_ops); - *npte = pte_mkuptodate(*npte); - addr += PAGE_SIZE; - } - + *npte = pte_mkuptodate(*npte); + addr += PAGE_SIZE; + } if(!ret) ret = (*do_ops)(mmu, ops, op_index, 1, &flush); - /* This is not an else because ret is modified above */ +/* This is not an else because ret is modified above */ if(ret) { printk("fix_range_common: failed, killing current process\n"); force_sig(SIGKILL, current); @@ -231,160 +231,160 @@ int flush_tlb_kernel_range_common(unsigned long start, unsigned long end) { - struct mm_struct *mm; - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *pte; - unsigned long addr, last; - int updated = 0, err; + struct mm_struct *mm; + pgd_t *pgd; + pud_t *pud; + pmd_t *pmd; + pte_t *pte; + unsigned long addr, last; + int updated = 0, err; - mm = &init_mm; - for(addr = start; addr < end;){ - pgd = pgd_offset(mm, addr); - if(!pgd_present(*pgd)){ - last = ADD_ROUND(addr, PGDIR_SIZE); - if(last > end) - last = end; - if(pgd_newpage(*pgd)){ - updated = 1; - err = os_unmap_memory((void *) addr, - last - addr); - if(err < 0) - panic("munmap failed, errno = %d\n", - -err); - } - addr = last; - continue; - } + mm = &init_mm; + for(addr = start; addr < end;){ + pgd = pgd_offset(mm, addr); + if(!pgd_present(*pgd)){ + last = ADD_ROUND(addr, PGDIR_SIZE); + if(last > end) + last = end; + if(pgd_newpage(*pgd)){ + updated = 1; + err = os_unmap_memory((void *) addr, + last - addr); + if(err < 0) + panic("munmap failed, errno = %d\n", + -err); + } + addr = last; + continue; + } - pud = pud_offset(pgd, addr); - if(!pud_present(*pud)){ - last = ADD_ROUND(addr, PUD_SIZE); - if(last > end) - last = end; - if(pud_newpage(*pud)){ - updated = 1; - err = os_unmap_memory((void *) addr, - last - addr); - if(err < 0) - panic("munmap failed, errno = %d\n", - -err); - } - addr = last; - continue; - } + pud = pud_offset(pgd, addr); + if(!pud_present(*pud)){ + last = ADD_ROUND(addr, PUD_SIZE); + if(last > end) + last = end; + if(pud_newpage(*pud)){ + updated = 1; + err = os_unmap_memory((void *) addr, + last - addr); + if(err < 0) + panic("munmap failed, errno = %d\n", + -err); + } + addr = last; + continue; + } - pmd = pmd_offset(pud, addr); - if(!pmd_present(*pmd)){ - last = ADD_ROUND(addr, PMD_SIZE); - if(last > end) - last = end; - if(pmd_newpage(*pmd)){ - updated = 1; - err = os_unmap_memory((void *) addr, - last - addr); - if(err < 0) - panic("munmap failed, errno = %d\n", - -err); - } - addr = last; - continue; - } + pmd = pmd_offset(pud, addr); + if(!pmd_present(*pmd)){ + last = ADD_ROUND(addr, PMD_SIZE); + if(last > end) + last = end; + if(pmd_newpage(*pmd)){ + updated = 1; + err = os_unmap_memory((void *) addr, + last - addr); + if(err < 0) + panic("munmap failed, errno = %d\n", + -err); + } + addr = last; + continue; + } - pte = pte_offset_kernel(pmd, addr); - if(!pte_present(*pte) || pte_newpage(*pte)){ - updated = 1; - err = os_unmap_memory((void *) addr, - PAGE_SIZE); - if(err < 0) - panic("munmap failed, errno = %d\n", - -err); - if(pte_present(*pte)) - map_memory(addr, - pte_val(*pte) & PAGE_MASK, - PAGE_SIZE, 1, 1, 1); - } - else if(pte_newprot(*pte)){ - updated = 1; - os_protect_memory((void *) addr, PAGE_SIZE, 1, 1, 1); - } - addr += PAGE_SIZE; - } - return(updated); + pte = pte_offset_kernel(pmd, addr); + if(!pte_present(*pte) || pte_newpage(*pte)){ + updated = 1; + err = os_unmap_memory((void *) addr, + PAGE_SIZE); + if(err < 0) + panic("munmap failed, errno = %d\n", + -err); + if(pte_present(*pte)) + map_memory(addr, + pte_val(*pte) & PAGE_MASK, + PAGE_SIZE, 1, 1, 1); + } + else if(pte_newprot(*pte)){ + updated = 1; + os_protect_memory((void *) addr, PAGE_SIZE, 1, 1, 1); + } + addr += PAGE_SIZE; + } + return(updated); } pgd_t *pgd_offset_proc(struct mm_struct *mm, unsigned long address) { - return(pgd_offset(mm, address)); + return(pgd_offset(mm, address)); } pud_t *pud_offset_proc(pgd_t *pgd, unsigned long address) { - return(pud_offset(pgd, address)); + return(pud_offset(pgd, address)); } pmd_t *pmd_offset_proc(pud_t *pud, unsigned long address) { - return(pmd_offset(pud, address)); + return(pmd_offset(pud, address)); } pte_t *pte_offset_proc(pmd_t *pmd, unsigned long address) { - return(pte_offset_kernel(pmd, address)); + return(pte_offset_kernel(pmd, address)); } pte_t *addr_pte(struct task_struct *task, unsigned long addr) { - pgd_t *pgd = pgd_offset(task->mm, addr); - pud_t *pud = pud_offset(pgd, addr); - pmd_t *pmd = pmd_offset(pud, addr); + pgd_t *pgd = pgd_offset(task->mm, addr); + pud_t *pud = pud_offset(pgd, addr); + pmd_t *pmd = pmd_offset(pud, addr); - return(pte_offset_map(pmd, addr)); + return(pte_offset_map(pmd, addr)); } void flush_tlb_page(struct vm_area_struct *vma, unsigned long address) { - address &= PAGE_MASK; - flush_tlb_range(vma, address, address + PAGE_SIZE); + address &= PAGE_MASK; + flush_tlb_range(vma, address, address + PAGE_SIZE); } void flush_tlb_all(void) { - flush_tlb_mm(current->mm); + flush_tlb_mm(current->mm); } void flush_tlb_kernel_range(unsigned long start, unsigned long end) { - CHOOSE_MODE_PROC(flush_tlb_kernel_range_tt, - flush_tlb_kernel_range_common, start, end); + CHOOSE_MODE_PROC(flush_tlb_kernel_range_tt, + flush_tlb_kernel_range_common, start, end); } void flush_tlb_kernel_vm(void) { - CHOOSE_MODE(flush_tlb_kernel_vm_tt(), - flush_tlb_kernel_range_common(start_vm, end_vm)); + CHOOSE_MODE(flush_tlb_kernel_vm_tt(), + flush_tlb_kernel_range_common(start_vm, end_vm)); } void __flush_tlb_one(unsigned long addr) { - CHOOSE_MODE_PROC(__flush_tlb_one_tt, __flush_tlb_one_skas, addr); + CHOOSE_MODE_PROC(__flush_tlb_one_tt, __flush_tlb_one_skas, addr); } void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { - CHOOSE_MODE_PROC(flush_tlb_range_tt, flush_tlb_range_skas, vma, start, - end); + CHOOSE_MODE_PROC(flush_tlb_range_tt, flush_tlb_range_skas, vma, start, + end); } void flush_tlb_mm(struct mm_struct *mm) { - CHOOSE_MODE_PROC(flush_tlb_mm_tt, flush_tlb_mm_skas, mm); + CHOOSE_MODE_PROC(flush_tlb_mm_tt, flush_tlb_mm_skas, mm); } void force_flush_all(void) { - CHOOSE_MODE(force_flush_all_tt(), force_flush_all_skas()); + CHOOSE_MODE(force_flush_all_tt(), force_flush_all_skas()); }
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c index ac70fa5..61a23ff 100644 --- a/arch/um/kernel/trap.c +++ b/arch/um/kernel/trap.c
@@ -140,14 +140,6 @@ segv(*fi, UPT_IP(regs), UPT_IS_USER(regs), regs); } -struct kern_handlers handlinfo_kern = { - .relay_signal = relay_signal, - .winch = winch, - .bus_handler = relay_signal, - .page_fault = segv_handler, - .sigio_handler = sigio_handler, - .timer_handler = timer_handler -}; /* * We give a *copy* of the faultinfo in the regs to segv. * This must be done, since nesting SEGVs could overwrite @@ -227,9 +219,16 @@ void relay_signal(int sig, union uml_pt_regs *regs) { - if(arch_handle_signal(sig, regs)) return; - if(!UPT_IS_USER(regs)) + if(arch_handle_signal(sig, regs)) + return; + + if(!UPT_IS_USER(regs)){ + if(sig == SIGBUS) + printk("Bus error - the /dev/shm or /tmp mount likely " + "just ran out of space\n"); panic("Kernel mode signal %d", sig); + } + current->thread.arch.faultinfo = *UPT_FAULTINFO(regs); force_sig(sig, current); } @@ -246,6 +245,15 @@ do_IRQ(WINCH_IRQ, regs); } +const struct kern_handlers handlinfo_kern = { + .relay_signal = relay_signal, + .winch = winch, + .bus_handler = bus_handler, + .page_fault = segv_handler, + .sigio_handler = sigio_handler, + .timer_handler = timer_handler +}; + void trap_init(void) { }
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index 7896cf9..5500571 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c
@@ -106,7 +106,7 @@ { } -struct seq_operations cpuinfo_op = { +const struct seq_operations cpuinfo_op = { .start = c_start, .next = c_next, .stop = c_stop,
diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile index f4bfc4c..b418392 100644 --- a/arch/um/os-Linux/Makefile +++ b/arch/um/os-Linux/Makefile
@@ -4,15 +4,19 @@ # obj-y = aio.o elf_aux.o file.o helper.o irq.o main.o mem.o process.o sigio.o \ - signal.o start_up.o time.o trap.o tt.o tty.o uaccess.o umid.o tls.o \ + signal.o start_up.o time.o trap.o tty.o uaccess.o umid.o tls.o \ user_syms.o util.o drivers/ sys-$(SUBARCH)/ obj-$(CONFIG_MODE_SKAS) += skas/ + +obj-$(CONFIG_MODE_TT) += tt.o +user-objs-$(CONFIG_MODE_TT) += tt.o + obj-$(CONFIG_TTY_LOG) += tty_log.o user-objs-$(CONFIG_TTY_LOG) += tty_log.o USER_OBJS := $(user-objs-y) aio.o elf_aux.o file.o helper.o irq.o main.o mem.o \ - process.o sigio.o signal.o start_up.o time.o trap.o tt.o tty.o tls.o \ + process.o sigio.o signal.o start_up.o time.o trap.o tty.o tls.o \ uaccess.o umid.o util.o CFLAGS_user_syms.o += -DSUBARCH_$(SUBARCH)
diff --git a/arch/um/os-Linux/drivers/etap.h b/arch/um/os-Linux/drivers/etap.h index b84f6c4..57ecdaf 100644 --- a/arch/um/os-Linux/drivers/etap.h +++ b/arch/um/os-Linux/drivers/etap.h
@@ -13,7 +13,7 @@ void *dev; }; -extern struct net_user_info ethertap_user_info; +extern const struct net_user_info ethertap_user_info; /* * Overrides for Emacs so that we follow Linus's tabbing style.
diff --git a/arch/um/os-Linux/drivers/ethertap_kern.c b/arch/um/os-Linux/drivers/ethertap_kern.c index 768606b..16385e2 100644 --- a/arch/um/os-Linux/drivers/ethertap_kern.c +++ b/arch/um/os-Linux/drivers/ethertap_kern.c
@@ -65,7 +65,7 @@ return(net_send(fd, (*skb)->data, (*skb)->len)); } -struct net_kern_info ethertap_kern_info = { +const struct net_kern_info ethertap_kern_info = { .init = etap_init, .protocol = eth_protocol, .read = etap_read,
diff --git a/arch/um/os-Linux/drivers/ethertap_user.c b/arch/um/os-Linux/drivers/ethertap_user.c index 8f49507..f559bdf7 100644 --- a/arch/um/os-Linux/drivers/ethertap_user.c +++ b/arch/um/os-Linux/drivers/ethertap_user.c
@@ -216,7 +216,7 @@ etap_close_addr(addr, netmask, &pri->control_fd); } -struct net_user_info ethertap_user_info = { +const struct net_user_info ethertap_user_info = { .init = etap_user_init, .open = etap_open, .close = etap_close,
diff --git a/arch/um/os-Linux/drivers/tuntap.h b/arch/um/os-Linux/drivers/tuntap.h index 25d4a28..d3e8d3a 100644 --- a/arch/um/os-Linux/drivers/tuntap.h +++ b/arch/um/os-Linux/drivers/tuntap.h
@@ -16,7 +16,7 @@ void *dev; }; -extern struct net_user_info tuntap_user_info; +extern const struct net_user_info tuntap_user_info; #endif
diff --git a/arch/um/os-Linux/drivers/tuntap_kern.c b/arch/um/os-Linux/drivers/tuntap_kern.c index 190009a..0edbac6 100644 --- a/arch/um/os-Linux/drivers/tuntap_kern.c +++ b/arch/um/os-Linux/drivers/tuntap_kern.c
@@ -53,7 +53,7 @@ return(net_write(fd, (*skb)->data, (*skb)->len)); } -struct net_kern_info tuntap_kern_info = { +const struct net_kern_info tuntap_kern_info = { .init = tuntap_init, .protocol = eth_protocol, .read = tuntap_read,
diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c index 87c3aa0..e846b23 100644 --- a/arch/um/os-Linux/drivers/tuntap_user.c +++ b/arch/um/os-Linux/drivers/tuntap_user.c
@@ -205,7 +205,7 @@ return(mtu); } -struct net_user_info tuntap_user_info = { +const struct net_user_info tuntap_user_info = { .init = tuntap_user_init, .open = tuntap_open, .close = tuntap_close,
diff --git a/arch/um/os-Linux/helper.c b/arch/um/os-Linux/helper.c index 6987d1d..cd15b9d 100644 --- a/arch/um/os-Linux/helper.c +++ b/arch/um/os-Linux/helper.c
@@ -42,7 +42,7 @@ if(data->pre_exec != NULL) (*data->pre_exec)(data->pre_data); execvp(argv[0], argv); - errval = errno; + errval = -errno; printk("helper_child - execve of '%s' failed - errno = %d\n", argv[0], errno); os_write_file(data->fd, &errval, sizeof(errval)); kill(os_getpid(), SIGKILL); @@ -62,7 +62,7 @@ stack = *stack_out; else stack = alloc_stack(0, __cant_sleep()); if(stack == 0) - return(-ENOMEM); + return -ENOMEM; ret = os_pipe(fds, 1, 0); if(ret < 0){ @@ -95,16 +95,16 @@ /* Read the errno value from the child, if the exec failed, or get 0 if * the exec succeeded because the pipe fd was set as close-on-exec. */ n = os_read_file(fds[0], &ret, sizeof(ret)); - if (n < 0) { - printk("run_helper : read on pipe failed, ret = %d\n", -n); - ret = n; - kill(pid, SIGKILL); - CATCH_EINTR(waitpid(pid, NULL, 0)); - } else if(n != 0){ - CATCH_EINTR(n = waitpid(pid, NULL, 0)); - ret = -errno; - } else { + if(n == 0) ret = pid; + else { + if(n < 0){ + printk("run_helper : read on pipe failed, ret = %d\n", + -n); + ret = n; + kill(pid, SIGKILL); + } + CATCH_EINTR(waitpid(pid, NULL, 0)); } out_close:
diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c index 7555bf9..a97206d 100644 --- a/arch/um/os-Linux/irq.c +++ b/arch/um/os-Linux/irq.c
@@ -132,7 +132,7 @@ void os_set_ioignore(void) { - set_handler(SIGIO, SIG_IGN, 0, -1); + signal(SIGIO, SIG_IGN); } void init_irq_signals(int on_sigstack)
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c index 90912aa..d1c5670 100644 --- a/arch/um/os-Linux/main.c +++ b/arch/um/os-Linux/main.c
@@ -67,13 +67,32 @@ static void last_ditch_exit(int sig) { - signal(SIGINT, SIG_DFL); - signal(SIGTERM, SIG_DFL); - signal(SIGHUP, SIG_DFL); uml_cleanup(); exit(1); } +static void install_fatal_handler(int sig) +{ + struct sigaction action; + + /* All signals are enabled in this handler ... */ + sigemptyset(&action.sa_mask); + + /* ... including the signal being handled, plus we want the + * handler reset to the default behavior, so that if an exit + * handler is hanging for some reason, the UML will just die + * after this signal is sent a second time. + */ + action.sa_flags = SA_RESETHAND | SA_NODEFER; + action.sa_restorer = NULL; + action.sa_handler = last_ditch_exit; + if(sigaction(sig, &action, NULL) < 0){ + printf("failed to install handler for signal %d - errno = %d\n", + errno); + exit(1); + } +} + #define UML_LIB_PATH ":/usr/lib/uml" static void setup_env_path(void) @@ -158,9 +177,12 @@ } new_argv[argc] = NULL; - set_handler(SIGINT, last_ditch_exit, SA_ONESHOT | SA_NODEFER, -1); - set_handler(SIGTERM, last_ditch_exit, SA_ONESHOT | SA_NODEFER, -1); - set_handler(SIGHUP, last_ditch_exit, SA_ONESHOT | SA_NODEFER, -1); + /* Allow these signals to bring down a UML if all other + * methods of control fail. + */ + install_fatal_handler(SIGINT); + install_fatal_handler(SIGTERM); + install_fatal_handler(SIGHUP); scan_elf_aux( envp);
diff --git a/arch/um/os-Linux/mem.c b/arch/um/os-Linux/mem.c index 560c806..b170b47 100644 --- a/arch/um/os-Linux/mem.c +++ b/arch/um/os-Linux/mem.c
@@ -114,14 +114,14 @@ } while(1){ - found = next(fd, buf, sizeof(buf) / sizeof(buf[0]), ' '); + found = next(fd, buf, ARRAY_SIZE(buf), ' '); if(found != 1) break; if(!strncmp(buf, "/dev/shm", strlen("/dev/shm"))) goto found; - found = next(fd, buf, sizeof(buf) / sizeof(buf[0]), '\n'); + found = next(fd, buf, ARRAY_SIZE(buf), '\n'); if(found != 1) break; } @@ -135,7 +135,7 @@ return; found: - found = next(fd, buf, sizeof(buf) / sizeof(buf[0]), ' '); + found = next(fd, buf, ARRAY_SIZE(buf), ' '); if(found != 1) goto err;
diff --git a/arch/um/os-Linux/process.c b/arch/um/os-Linux/process.c index b98d3ca..ff20362 100644 --- a/arch/um/os-Linux/process.c +++ b/arch/um/os-Linux/process.c
@@ -7,7 +7,6 @@ #include <stdio.h> #include <errno.h> #include <signal.h> -#include <setjmp.h> #include <linux/unistd.h> #include <sys/mman.h> #include <sys/wait.h> @@ -247,7 +246,17 @@ set_sigstack(sig_stack, pages * page_size()); flags = SA_ONSTACK; } - if(usr1_handler) set_handler(SIGUSR1, usr1_handler, flags, -1); + if(usr1_handler){ + struct sigaction sa; + + sa.sa_handler = usr1_handler; + sigemptyset(&sa.sa_mask); + sa.sa_flags = flags; + sa.sa_restorer = NULL; + if(sigaction(SIGUSR1, &sa, NULL) < 0) + panic("init_new_thread_stack - sigaction failed - " + "errno = %d\n", errno); + } } void init_new_thread_signals(void)
diff --git a/arch/um/os-Linux/sigio.c b/arch/um/os-Linux/sigio.c index 0ecac56..f645776 100644 --- a/arch/um/os-Linux/sigio.c +++ b/arch/um/os-Linux/sigio.c
@@ -43,17 +43,9 @@ /* Protected by sigio_lock(). Used by the sigio thread, but the UML thread * synchronizes with it. */ -static struct pollfds current_poll = { - .poll = NULL, - .size = 0, - .used = 0 -}; - -static struct pollfds next_poll = { - .poll = NULL, - .size = 0, - .used = 0 -}; +static struct pollfds current_poll; +static struct pollfds next_poll; +static struct pollfds all_sigio_fds; static int write_sigio_thread(void *unused) { @@ -78,7 +70,8 @@ n = os_read_file(sigio_private[1], &c, sizeof(c)); if(n != sizeof(c)) printk("write_sigio_thread : " - "read failed, err = %d\n", -n); + "read on socket failed, " + "err = %d\n", -n); tmp = current_poll; current_poll = next_poll; next_poll = tmp; @@ -93,35 +86,36 @@ n = os_write_file(respond_fd, &c, sizeof(c)); if(n != sizeof(c)) - printk("write_sigio_thread : write failed, " - "err = %d\n", -n); + printk("write_sigio_thread : write on socket " + "failed, err = %d\n", -n); } } return 0; } -static int need_poll(int n) +static int need_poll(struct pollfds *polls, int n) { - if(n <= next_poll.size){ - next_poll.used = n; - return(0); + if(n <= polls->size){ + polls->used = n; + return 0; } - kfree(next_poll.poll); - next_poll.poll = um_kmalloc_atomic(n * sizeof(struct pollfd)); - if(next_poll.poll == NULL){ + kfree(polls->poll); + polls->poll = um_kmalloc_atomic(n * sizeof(struct pollfd)); + if(polls->poll == NULL){ printk("need_poll : failed to allocate new pollfds\n"); - next_poll.size = 0; - next_poll.used = 0; - return(-1); + polls->size = 0; + polls->used = 0; + return -ENOMEM; } - next_poll.size = n; - next_poll.used = n; - return(0); + polls->size = n; + polls->used = n; + return 0; } /* Must be called with sigio_lock held, because it's needed by the marked - * critical section. */ + * critical section. + */ static void update_thread(void) { unsigned long flags; @@ -156,34 +150,39 @@ set_signals(flags); } -static int add_sigio_fd(int fd, int read) +int add_sigio_fd(int fd) { - int err = 0, i, n, events; + struct pollfd *p; + int err = 0, i, n; sigio_lock(); + for(i = 0; i < all_sigio_fds.used; i++){ + if(all_sigio_fds.poll[i].fd == fd) + break; + } + if(i == all_sigio_fds.used) + goto out; + + p = &all_sigio_fds.poll[i]; + for(i = 0; i < current_poll.used; i++){ if(current_poll.poll[i].fd == fd) goto out; } n = current_poll.used + 1; - err = need_poll(n); + err = need_poll(&next_poll, n); if(err) goto out; for(i = 0; i < current_poll.used; i++) next_poll.poll[i] = current_poll.poll[i]; - if(read) events = POLLIN; - else events = POLLOUT; - - next_poll.poll[n - 1] = ((struct pollfd) { .fd = fd, - .events = events, - .revents = 0 }); + next_poll.poll[n - 1] = *p; update_thread(); out: sigio_unlock(); - return(err); + return err; } int ignore_sigio_fd(int fd) @@ -205,18 +204,14 @@ if(i == current_poll.used) goto out; - err = need_poll(current_poll.used - 1); + err = need_poll(&next_poll, current_poll.used - 1); if(err) goto out; for(i = 0; i < current_poll.used; i++){ p = ¤t_poll.poll[i]; - if(p->fd != fd) next_poll.poll[n++] = current_poll.poll[i]; - } - if(n == i){ - printk("ignore_sigio_fd : fd %d not found\n", fd); - err = -1; - goto out; + if(p->fd != fd) + next_poll.poll[n++] = *p; } update_thread(); @@ -234,7 +229,7 @@ printk("setup_initial_poll : failed to allocate poll\n"); return NULL; } - *p = ((struct pollfd) { .fd = fd, + *p = ((struct pollfd) { .fd = fd, .events = POLLIN, .revents = 0 }); return p; @@ -323,6 +318,8 @@ void maybe_sigio_broken(int fd, int read) { + int err; + if(!isatty(fd)) return; @@ -330,7 +327,19 @@ return; write_sigio_workaround(); - add_sigio_fd(fd, read); + + sigio_lock(); + err = need_poll(&all_sigio_fds, all_sigio_fds.used + 1); + if(err){ + printk("maybe_sigio_broken - failed to add pollfd\n"); + goto out; + } + all_sigio_fds.poll[all_sigio_fds.used++] = + ((struct pollfd) { .fd = fd, + .events = read ? POLLIN : POLLOUT, + .revents = 0 }); +out: + sigio_unlock(); } static void sigio_cleanup(void)
diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c index 60e4fae..6b81739 100644 --- a/arch/um/os-Linux/signal.c +++ b/arch/um/os-Linux/signal.c
@@ -15,7 +15,6 @@ #include "user.h" #include "signal_kern.h" #include "sysdep/sigcontext.h" -#include "sysdep/signal.h" #include "sigcontext.h" #include "mode.h" #include "os.h" @@ -38,18 +37,10 @@ static int signals_enabled = 1; static int pending = 0; -void sig_handler(ARCH_SIGHDLR_PARAM) +void sig_handler(int sig, struct sigcontext *sc) { - struct sigcontext *sc; int enabled; - /* Must be the first thing that this handler does - x86_64 stores - * the sigcontext in %rdx, and we need to save it before it has a - * chance to get trashed. - */ - - ARCH_GET_SIGCONTEXT(sc, sig); - enabled = signals_enabled; if(!enabled && (sig == SIGIO)){ pending |= SIGIO_MASK; @@ -64,15 +55,8 @@ set_signals(enabled); } -extern int timer_irq_inited; - static void real_alarm_handler(int sig, struct sigcontext *sc) { - if(!timer_irq_inited){ - signals_enabled = 1; - return; - } - if(sig == SIGALRM) switch_timers(0); @@ -84,13 +68,10 @@ } -void alarm_handler(ARCH_SIGHDLR_PARAM) +void alarm_handler(int sig, struct sigcontext *sc) { - struct sigcontext *sc; int enabled; - ARCH_GET_SIGCONTEXT(sc, sig); - enabled = signals_enabled; if(!signals_enabled){ if(sig == SIGVTALRM) @@ -126,6 +107,10 @@ panic("disabling signal stack failed, errno = %d\n", errno); } +void (*handlers[_NSIG])(int sig, struct sigcontext *sc); + +extern void hard_handler(int sig); + void set_handler(int sig, void (*handler)(int), int flags, ...) { struct sigaction action; @@ -133,13 +118,16 @@ sigset_t sig_mask; int mask; - va_start(ap, flags); - action.sa_handler = handler; + handlers[sig] = (void (*)(int, struct sigcontext *)) handler; + action.sa_handler = hard_handler; + sigemptyset(&action.sa_mask); - while((mask = va_arg(ap, int)) != -1){ + + va_start(ap, flags); + while((mask = va_arg(ap, int)) != -1) sigaddset(&action.sa_mask, mask); - } va_end(ap); + action.sa_flags = flags; action.sa_restorer = NULL; if(sigaction(sig, &action, NULL) < 0)
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index 7baf90f..cb9ab54 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c
@@ -8,7 +8,6 @@ #include <unistd.h> #include <errno.h> #include <signal.h> -#include <setjmp.h> #include <sched.h> #include "ptrace_user.h" #include <sys/wait.h> @@ -156,11 +155,15 @@ static int userspace_tramp(void *stack) { void *addr; + int err; ptrace(PTRACE_TRACEME, 0, 0, 0); init_new_thread_signals(); - enable_timer(); + err = set_interval(1); + if(err) + panic("userspace_tramp - setting timer failed, errno = %d\n", + err); if(!proc_mm){ /* This has a pte, but it can't be mapped in with the usual @@ -190,14 +193,25 @@ } } if(!ptrace_faultinfo && (stack != NULL)){ + struct sigaction sa; + unsigned long v = UML_CONFIG_STUB_CODE + (unsigned long) stub_segv_handler - (unsigned long) &__syscall_stub_start; set_sigstack((void *) UML_CONFIG_STUB_DATA, page_size()); - set_handler(SIGSEGV, (void *) v, SA_ONSTACK, - SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, - SIGUSR1, -1); + sigemptyset(&sa.sa_mask); + sigaddset(&sa.sa_mask, SIGIO); + sigaddset(&sa.sa_mask, SIGWINCH); + sigaddset(&sa.sa_mask, SIGALRM); + sigaddset(&sa.sa_mask, SIGVTALRM); + sigaddset(&sa.sa_mask, SIGUSR1); + sa.sa_flags = SA_ONSTACK; + sa.sa_handler = (void *) v; + sa.sa_restorer = NULL; + if(sigaction(SIGSEGV, &sa, NULL) < 0) + panic("userspace_tramp - setting SIGSEGV handler " + "failed - errno = %d\n", errno); } os_stop_process(os_getpid()); @@ -430,56 +444,22 @@ } } -void new_thread(void *stack, void **switch_buf_ptr, void **fork_buf_ptr, - void (*handler)(int)) +void new_thread(void *stack, jmp_buf *buf, void (*handler)(void)) { - unsigned long flags; - jmp_buf switch_buf, fork_buf; - - *switch_buf_ptr = &switch_buf; - *fork_buf_ptr = &fork_buf; - - /* Somewhat subtle - siglongjmp restores the signal mask before doing - * the longjmp. This means that when jumping from one stack to another - * when the target stack has interrupts enabled, an interrupt may occur - * on the source stack. This is bad when starting up a process because - * it's not supposed to get timer ticks until it has been scheduled. - * So, we disable interrupts around the sigsetjmp to ensure that - * they can't happen until we get back here where they are safe. - */ - flags = get_signals(); - block_signals(); - if(UML_SETJMP(&fork_buf) == 0) - new_thread_proc(stack, handler); - - remove_sigstack(); - - set_signals(flags); + (*buf)[0].JB_IP = (unsigned long) handler; + (*buf)[0].JB_SP = (unsigned long) stack + + (PAGE_SIZE << UML_CONFIG_KERNEL_STACK_ORDER) - sizeof(void *); } #define INIT_JMP_NEW_THREAD 0 -#define INIT_JMP_REMOVE_SIGSTACK 1 -#define INIT_JMP_CALLBACK 2 -#define INIT_JMP_HALT 3 -#define INIT_JMP_REBOOT 4 +#define INIT_JMP_CALLBACK 1 +#define INIT_JMP_HALT 2 +#define INIT_JMP_REBOOT 3 -void thread_wait(void *sw, void *fb) +void switch_threads(jmp_buf *me, jmp_buf *you) { - jmp_buf buf, **switch_buf = sw, *fork_buf; - - *switch_buf = &buf; - fork_buf = fb; - if(UML_SETJMP(&buf) == 0) - siglongjmp(*fork_buf, INIT_JMP_REMOVE_SIGSTACK); -} - -void switch_threads(void *me, void *next) -{ - jmp_buf my_buf, **me_ptr = me, *next_buf = next; - - *me_ptr = &my_buf; - if(UML_SETJMP(&my_buf) == 0) - UML_LONGJMP(next_buf, 1); + if(UML_SETJMP(me) == 0) + UML_LONGJMP(you, 1); } static jmp_buf initial_jmpbuf; @@ -489,23 +469,21 @@ static void *cb_arg; static jmp_buf *cb_back; -int start_idle_thread(void *stack, void *switch_buf_ptr, void **fork_buf_ptr) +int start_idle_thread(void *stack, jmp_buf *switch_buf) { - jmp_buf **switch_buf = switch_buf_ptr; int n; set_handler(SIGWINCH, (__sighandler_t) sig_handler, SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGALRM, SIGVTALRM, -1); - *fork_buf_ptr = &initial_jmpbuf; n = UML_SETJMP(&initial_jmpbuf); switch(n){ case INIT_JMP_NEW_THREAD: - new_thread_proc((void *) stack, new_thread_handler); - break; - case INIT_JMP_REMOVE_SIGSTACK: - remove_sigstack(); + (*switch_buf)[0].JB_IP = (unsigned long) new_thread_handler; + (*switch_buf)[0].JB_SP = (unsigned long) stack + + (PAGE_SIZE << UML_CONFIG_KERNEL_STACK_ORDER) - + sizeof(void *); break; case INIT_JMP_CALLBACK: (*cb_proc)(cb_arg); @@ -520,7 +498,7 @@ default: panic("Bad sigsetjmp return in start_idle_thread - %d\n", n); } - UML_LONGJMP(*switch_buf, 1); + UML_LONGJMP(switch_buf, 1); } void initial_thread_cb_skas(void (*proc)(void *), void *arg)
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c index 5031485..7fe9268 100644 --- a/arch/um/os-Linux/start_up.c +++ b/arch/um/os-Linux/start_up.c
@@ -14,7 +14,6 @@ #include <sched.h> #include <fcntl.h> #include <errno.h> -#include <setjmp.h> #include <sys/time.h> #include <sys/wait.h> #include <sys/mman.h>
diff --git a/arch/um/os-Linux/sys-i386/Makefile b/arch/um/os-Linux/sys-i386/Makefile index b321361..3780662 100644 --- a/arch/um/os-Linux/sys-i386/Makefile +++ b/arch/um/os-Linux/sys-i386/Makefile
@@ -3,7 +3,7 @@ # Licensed under the GPL # -obj-$(CONFIG_MODE_SKAS) = registers.o tls.o +obj-$(CONFIG_MODE_SKAS) = registers.o signal.o tls.o USER_OBJS := $(obj-y)
diff --git a/arch/um/os-Linux/sys-i386/registers.c b/arch/um/os-Linux/sys-i386/registers.c index 516f66d..7cd0369 100644 --- a/arch/um/os-Linux/sys-i386/registers.c +++ b/arch/um/os-Linux/sys-i386/registers.c
@@ -5,12 +5,12 @@ #include <errno.h> #include <string.h> -#include <setjmp.h> #include "sysdep/ptrace_user.h" #include "sysdep/ptrace.h" #include "uml-config.h" #include "skas_ptregs.h" #include "registers.h" +#include "longjmp.h" #include "user.h" /* These are set once at boot time and not changed thereafter */ @@ -130,11 +130,14 @@ HOST_FP_SIZE * sizeof(unsigned long)); } -void get_thread_regs(union uml_pt_regs *uml_regs, void *buffer) +unsigned long get_thread_reg(int reg, jmp_buf *buf) { - struct __jmp_buf_tag *jmpbuf = buffer; - - UPT_SET(uml_regs, EIP, jmpbuf->__jmpbuf[JB_PC]); - UPT_SET(uml_regs, UESP, jmpbuf->__jmpbuf[JB_SP]); - UPT_SET(uml_regs, EBP, jmpbuf->__jmpbuf[JB_BP]); + switch(reg){ + case EIP: return buf[0]->__eip; + case UESP: return buf[0]->__esp; + case EBP: return buf[0]->__ebp; + default: + printk("get_thread_regs - unknown register %d\n", reg); + return 0; + } }
diff --git a/arch/um/os-Linux/sys-i386/signal.c b/arch/um/os-Linux/sys-i386/signal.c new file mode 100644 index 0000000..0d3eae5 --- /dev/null +++ b/arch/um/os-Linux/sys-i386/signal.c
@@ -0,0 +1,15 @@ +/* + * Copyright (C) 2006 Jeff Dike (jdike@addtoit.com) + * Licensed under the GPL + */ + +#include <signal.h> + +extern void (*handlers[])(int sig, struct sigcontext *sc); + +void hard_handler(int sig) +{ + struct sigcontext *sc = (struct sigcontext *) (&sig + 1); + + (*handlers[sig])(sig, sc); +}
diff --git a/arch/um/os-Linux/sys-x86_64/Makefile b/arch/um/os-Linux/sys-x86_64/Makefile index 340ef26..f67842a 100644 --- a/arch/um/os-Linux/sys-x86_64/Makefile +++ b/arch/um/os-Linux/sys-x86_64/Makefile
@@ -3,7 +3,7 @@ # Licensed under the GPL # -obj-$(CONFIG_MODE_SKAS) = registers.o +obj-$(CONFIG_MODE_SKAS) = registers.o signal.o USER_OBJS := $(obj-y)
diff --git a/arch/um/os-Linux/sys-x86_64/registers.c b/arch/um/os-Linux/sys-x86_64/registers.c index becd898..cb8e8a2 100644 --- a/arch/um/os-Linux/sys-x86_64/registers.c +++ b/arch/um/os-Linux/sys-x86_64/registers.c
@@ -5,11 +5,11 @@ #include <errno.h> #include <string.h> -#include <setjmp.h> #include "ptrace_user.h" #include "uml-config.h" #include "skas_ptregs.h" #include "registers.h" +#include "longjmp.h" #include "user.h" /* These are set once at boot time and not changed thereafter */ @@ -78,11 +78,14 @@ HOST_FP_SIZE * sizeof(unsigned long)); } -void get_thread_regs(union uml_pt_regs *uml_regs, void *buffer) +unsigned long get_thread_reg(int reg, jmp_buf *buf) { - struct __jmp_buf_tag *jmpbuf = buffer; - - UPT_SET(uml_regs, RIP, jmpbuf->__jmpbuf[JB_PC]); - UPT_SET(uml_regs, RSP, jmpbuf->__jmpbuf[JB_RSP]); - UPT_SET(uml_regs, RBP, jmpbuf->__jmpbuf[JB_RBP]); + switch(reg){ + case RIP: return buf[0]->__rip; + case RSP: return buf[0]->__rsp; + case RBP: return buf[0]->__rbp; + default: + printk("get_thread_regs - unknown register %d\n", reg); + return 0; + } }
diff --git a/arch/um/os-Linux/sys-x86_64/signal.c b/arch/um/os-Linux/sys-x86_64/signal.c new file mode 100644 index 0000000..3f369e5 --- /dev/null +++ b/arch/um/os-Linux/sys-x86_64/signal.c
@@ -0,0 +1,16 @@ +/* + * Copyright (C) 2006 Jeff Dike (jdike@addtoit.com) + * Licensed under the GPL + */ + +#include <signal.h> + +extern void (*handlers[])(int sig, struct sigcontext *sc); + +void hard_handler(int sig) +{ + struct ucontext *uc; + asm("movq %%rdx, %0" : "=r" (uc)); + + (*handlers[sig])(sig, (struct sigcontext *) &uc->uc_mcontext); +}
diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c index 4ae73c0..38be096 100644 --- a/arch/um/os-Linux/time.c +++ b/arch/um/os-Linux/time.c
@@ -17,20 +17,25 @@ #include "kern_constants.h" #include "os.h" -static void set_interval(int timer_type) +int set_interval(int is_virtual) { int usec = 1000000/hz(); + int timer_type = is_virtual ? ITIMER_VIRTUAL : ITIMER_REAL; struct itimerval interval = ((struct itimerval) { { 0, usec }, { 0, usec } }); if(setitimer(timer_type, &interval, NULL) == -1) - panic("setitimer failed - errno = %d\n", errno); + return -errno; + + return 0; } +#ifdef CONFIG_MODE_TT void enable_timer(void) { - set_interval(ITIMER_VIRTUAL); + set_interval(1); } +#endif void disable_timer(void) { @@ -40,8 +45,8 @@ printk("disnable_timer - setitimer failed, errno = %d\n", errno); /* If there are signals already queued, after unblocking ignore them */ - set_handler(SIGALRM, SIG_IGN, 0, -1); - set_handler(SIGVTALRM, SIG_IGN, 0, -1); + signal(SIGALRM, SIG_IGN); + signal(SIGVTALRM, SIG_IGN); } void switch_timers(int to_real) @@ -74,7 +79,7 @@ set_handler(SIGALRM, (__sighandler_t) alarm_handler, SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGVTALRM, -1); - set_interval(ITIMER_REAL); + set_interval(0); } #endif @@ -94,8 +99,3 @@ ts.tv_nsec = 0; nanosleep(&ts, NULL); } - -void user_time_init(void) -{ - set_interval(ITIMER_VIRTUAL); -}
diff --git a/arch/um/os-Linux/trap.c b/arch/um/os-Linux/trap.c index 90b29ae..1df231a 100644 --- a/arch/um/os-Linux/trap.c +++ b/arch/um/os-Linux/trap.c
@@ -5,7 +5,6 @@ #include <stdlib.h> #include <signal.h> -#include <setjmp.h> #include "kern_util.h" #include "user_util.h" #include "os.h"
diff --git a/arch/um/os-Linux/uaccess.c b/arch/um/os-Linux/uaccess.c index 865f6a6..bbb73a6 100644 --- a/arch/um/os-Linux/uaccess.c +++ b/arch/um/os-Linux/uaccess.c
@@ -4,8 +4,7 @@ * Licensed under the GPL */ -#include <setjmp.h> -#include <string.h> +#include <stddef.h> #include "longjmp.h" unsigned long __do_user_copy(void *to, const void *from, int n,
diff --git a/arch/um/os-Linux/util.c b/arch/um/os-Linux/util.c index c47a2a7..3f5b151 100644 --- a/arch/um/os-Linux/util.c +++ b/arch/um/os-Linux/util.c
@@ -7,7 +7,6 @@ #include <stdlib.h> #include <unistd.h> #include <limits.h> -#include <setjmp.h> #include <sys/mman.h> #include <sys/stat.h> #include <sys/utsname.h> @@ -107,11 +106,11 @@ jmp_buf buf; int n; - n = sigsetjmp(buf, 1); + n = UML_SETJMP(&buf); if(n == 0){ va_start(args, proc); (*proc)(&buf, &args); } va_end(args); - return(n); + return n; }
diff --git a/arch/um/sys-i386/Makefile b/arch/um/sys-i386/Makefile index 374d61a..0e32adf 100644 --- a/arch/um/sys-i386/Makefile +++ b/arch/um/sys-i386/Makefile
@@ -1,10 +1,10 @@ obj-y = bugs.o checksum.o delay.o fault.o ksyms.o ldt.o ptrace.o \ - ptrace_user.o signal.o sigcontext.o syscalls.o sysrq.o \ + ptrace_user.o setjmp.o signal.o sigcontext.o syscalls.o sysrq.o \ sys_call_table.o tls.o obj-$(CONFIG_MODE_SKAS) += stub.o stub_segv.o -subarch-obj-y = lib/bitops.o kernel/semaphore.o +subarch-obj-y = lib/bitops.o lib/semaphore.o subarch-obj-$(CONFIG_HIGHMEM) += mm/highmem.o subarch-obj-$(CONFIG_MODULES) += kernel/module.o
diff --git a/arch/um/sys-i386/bugs.c b/arch/um/sys-i386/bugs.c index 41b0ab2..f1bcd39 100644 --- a/arch/um/sys-i386/bugs.c +++ b/arch/um/sys-i386/bugs.c
@@ -13,6 +13,7 @@ #include "sysdep/ptrace.h" #include "task.h" #include "os.h" +#include "user_util.h" #define MAXTOKEN 64 @@ -104,17 +105,17 @@ static int check_cpu_flag(char *feature, int *have_it) { char buf[MAXTOKEN], c; - int fd, len = sizeof(buf)/sizeof(buf[0]); + int fd, len = ARRAY_SIZE(buf); printk("Checking for host processor %s support...", feature); fd = os_open_file("/proc/cpuinfo", of_read(OPENFLAGS()), 0); if(fd < 0){ printk("Couldn't open /proc/cpuinfo, err = %d\n", -fd); - return(0); + return 0; } *have_it = 0; - if(!find_cpuinfo_line(fd, "flags", buf, sizeof(buf) / sizeof(buf[0]))) + if(!find_cpuinfo_line(fd, "flags", buf, ARRAY_SIZE(buf))) goto out; c = token(fd, buf, len - 1, ' '); @@ -138,7 +139,7 @@ if(*have_it == 0) printk("No\n"); else if(*have_it == 1) printk("Yes\n"); os_close_file(fd); - return(1); + return 1; } #if 0 /* This doesn't work in tt mode, plus it's causing compilation problems
diff --git a/arch/um/sys-i386/ldt.c b/arch/um/sys-i386/ldt.c index fe0877b..69971b7 100644 --- a/arch/um/sys-i386/ldt.c +++ b/arch/um/sys-i386/ldt.c
@@ -424,9 +424,8 @@ size++; } - if(size < sizeof(dummy_list)/sizeof(dummy_list[0])) { + if(size < ARRAY_SIZE(dummy_list)) host_ldt_entries = dummy_list; - } else { size = (size + 1) * sizeof(dummy_list[0]); host_ldt_entries = (short *)kmalloc(size, GFP_KERNEL);
diff --git a/arch/um/sys-i386/ptrace_user.c b/arch/um/sys-i386/ptrace_user.c index 40aa885..5f3cc668 100644 --- a/arch/um/sys-i386/ptrace_user.c +++ b/arch/um/sys-i386/ptrace_user.c
@@ -15,6 +15,7 @@ #include "user.h" #include "os.h" #include "uml-config.h" +#include "user_util.h" int ptrace_getregs(long pid, unsigned long *regs_out) { @@ -51,7 +52,7 @@ int nregs, i; dummy = NULL; - nregs = sizeof(dummy->u_debugreg)/sizeof(dummy->u_debugreg[0]); + nregs = ARRAY_SIZE(dummy->u_debugreg); for(i = 0; i < nregs; i++){ if((i == 4) || (i == 5)) continue; if(ptrace(PTRACE_POKEUSR, pid, &dummy->u_debugreg[i], @@ -68,7 +69,7 @@ int nregs, i; dummy = NULL; - nregs = sizeof(dummy->u_debugreg)/sizeof(dummy->u_debugreg[0]); + nregs = ARRAY_SIZE(dummy->u_debugreg); for(i = 0; i < nregs; i++){ regs[i] = ptrace(PTRACE_PEEKUSR, pid, &dummy->u_debugreg[i], 0);
diff --git a/arch/um/sys-i386/setjmp.S b/arch/um/sys-i386/setjmp.S new file mode 100644 index 0000000..b766792 --- /dev/null +++ b/arch/um/sys-i386/setjmp.S
@@ -0,0 +1,58 @@ +# +# arch/i386/setjmp.S +# +# setjmp/longjmp for the i386 architecture +# + +# +# The jmp_buf is assumed to contain the following, in order: +# %ebx +# %esp +# %ebp +# %esi +# %edi +# <return address> +# + + .text + .align 4 + .globl setjmp + .type setjmp, @function +setjmp: +#ifdef _REGPARM + movl %eax,%edx +#else + movl 4(%esp),%edx +#endif + popl %ecx # Return address, and adjust the stack + xorl %eax,%eax # Return value + movl %ebx,(%edx) + movl %esp,4(%edx) # Post-return %esp! + pushl %ecx # Make the call/return stack happy + movl %ebp,8(%edx) + movl %esi,12(%edx) + movl %edi,16(%edx) + movl %ecx,20(%edx) # Return address + ret + + .size setjmp,.-setjmp + + .text + .align 4 + .globl longjmp + .type longjmp, @function +longjmp: +#ifdef _REGPARM + xchgl %eax,%edx +#else + movl 4(%esp),%edx # jmp_ptr address + movl 8(%esp),%eax # Return value +#endif + movl (%edx),%ebx + movl 4(%edx),%esp + movl 8(%edx),%ebp + movl 12(%edx),%esi + movl 16(%edx),%edi + jmp *20(%edx) + + .size longjmp,.-longjmp
diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile index c19794d..f41768b 100644 --- a/arch/um/sys-x86_64/Makefile +++ b/arch/um/sys-x86_64/Makefile
@@ -5,8 +5,8 @@ # obj-y = bugs.o delay.o fault.o ldt.o mem.o ptrace.o ptrace_user.o \ - sigcontext.o signal.o syscalls.o syscall_table.o sysrq.o ksyms.o \ - tls.o + setjmp.o sigcontext.o signal.o syscalls.o syscall_table.o sysrq.o \ + ksyms.o tls.o obj-$(CONFIG_MODE_SKAS) += stub.o stub_segv.o obj-$(CONFIG_MODULES) += um_module.o
diff --git a/arch/um/sys-x86_64/setjmp.S b/arch/um/sys-x86_64/setjmp.S new file mode 100644 index 0000000..45f547b --- /dev/null +++ b/arch/um/sys-x86_64/setjmp.S
@@ -0,0 +1,54 @@ +# +# arch/x86_64/setjmp.S +# +# setjmp/longjmp for the x86-64 architecture +# + +# +# The jmp_buf is assumed to contain the following, in order: +# %rbx +# %rsp (post-return) +# %rbp +# %r12 +# %r13 +# %r14 +# %r15 +# <return address> +# + + .text + .align 4 + .globl setjmp + .type setjmp, @function +setjmp: + pop %rsi # Return address, and adjust the stack + xorl %eax,%eax # Return value + movq %rbx,(%rdi) + movq %rsp,8(%rdi) # Post-return %rsp! + push %rsi # Make the call/return stack happy + movq %rbp,16(%rdi) + movq %r12,24(%rdi) + movq %r13,32(%rdi) + movq %r14,40(%rdi) + movq %r15,48(%rdi) + movq %rsi,56(%rdi) # Return address + ret + + .size setjmp,.-setjmp + + .text + .align 4 + .globl longjmp + .type longjmp, @function +longjmp: + movl %esi,%eax # Return value (int) + movq (%rdi),%rbx + movq 8(%rdi),%rsp + movq 16(%rdi),%rbp + movq 24(%rdi),%r12 + movq 32(%rdi),%r13 + movq 40(%rdi),%r14 + movq 48(%rdi),%r15 + jmp *56(%rdi) + + .size longjmp,.-longjmp
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 6cd4878..32ae137 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig
@@ -24,6 +24,10 @@ bool default y +config ZONE_DMA32 + bool + default y + config LOCKDEP_SUPPORT bool default y @@ -81,6 +85,9 @@ bool default y +config ARCH_POPULATES_NODE_MAP + def_bool y + config DMI bool default y @@ -105,6 +112,7 @@ config X86_VSMP bool "Support for ScaleMP vSMP" + depends on PCI help Support for ScaleMP vSMP systems. Say 'Y' here if this kernel is supposed to run on these EM64T-based machines. Only choose this option @@ -163,6 +171,7 @@ config MICROCODE tristate "/dev/cpu/microcode - Intel CPU microcode support" + select FW_LOADER ---help--- If you say Y here the 'File systems' section, you will be able to update the microcode on Intel processors. You will @@ -178,6 +187,11 @@ If you use modprobe or kmod you may also want to add the line 'alias char-major-10-184 microcode' to your /etc/modules.conf file. +config MICROCODE_OLD_INTERFACE + bool + depends on MICROCODE + default y + config X86_MSR tristate "/dev/cpu/*/msr - Model-specific register support" help @@ -291,7 +305,7 @@ config K8_NUMA bool "Old style AMD Opteron NUMA detection" - depends on NUMA + depends on NUMA && PCI default y help Enable K8 NUMA node topology detection. You should say Y here if @@ -421,7 +435,6 @@ config CALGARY_IOMMU bool "IBM Calgary IOMMU support" - default y select SWIOTLB depends on PCI && EXPERIMENTAL help @@ -468,8 +481,7 @@ the DRAM Error Threshold. config KEXEC - bool "kexec system call (EXPERIMENTAL)" - depends on EXPERIMENTAL + bool "kexec system call" help kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot @@ -488,7 +500,14 @@ bool "kernel crash dumps (EXPERIMENTAL)" depends on EXPERIMENTAL help - Generate crash dump after being started by kexec. + Generate crash dump after being started by kexec. + This should be normally only set in special crash dump kernels + which are loaded in the main kernel with kexec-tools into + a specially reserved region and then later executed after + a crash by kdump/kexec. The crash dump kernel must be compiled + to a memory address not used by the main kernel or BIOS using + PHYSICAL_START. + For more details see Documentation/kdump/kdump.txt config PHYSICAL_START hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP) @@ -526,6 +545,30 @@ If unsure, say Y. Only embedded should say N here. +config CC_STACKPROTECTOR + bool "Enable -fstack-protector buffer overflow detection (EXPRIMENTAL)" + depends on EXPERIMENTAL + help + This option turns on the -fstack-protector GCC feature. This + feature puts, at the beginning of critical functions, a canary + value on the stack just before the return address, and validates + the value just before actually returning. Stack based buffer + overflows (that need to overwrite this return address) now also + overwrite the canary, which gets detected and the attack is then + neutralized via a kernel panic. + + This feature requires gcc version 4.2 or above, or a distribution + gcc with the feature backported. Older versions are automatically + detected and for those versions, this configuration option is ignored. + +config CC_STACKPROTECTOR_ALL + bool "Use stack-protector for all functions" + depends on CC_STACKPROTECTOR + help + Normally, GCC only inserts the canary value protection for + functions that use large-ish on-stack buffers. By enabling + this option, GCC will be asked to do this for ALL functions. + source kernel/Kconfig.hz config REORDER
diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile index 431bb4b..1c0f18d 100644 --- a/arch/x86_64/Makefile +++ b/arch/x86_64/Makefile
@@ -54,6 +54,16 @@ cflags-y += $(call cc-option,-funit-at-a-time) # prevent gcc from generating any FP code by mistake cflags-y += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,) +# do binutils support CFI? +cflags-y += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) +AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_endproc,-DCONFIG_AS_CFI=1,) + +# is .cfi_signal_frame supported too? +cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) +AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) + +cflags-$(CONFIG_CC_STACKPROTECTOR) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh $(CC) -fstack-protector ) +cflags-$(CONFIG_CC_STACKPROTECTOR_ALL) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh $(CC) -fstack-protector-all ) CFLAGS += $(cflags-y) CFLAGS_KERNEL += $(cflags-kernel-y)
diff --git a/arch/x86_64/boot/compressed/Makefile b/arch/x86_64/boot/compressed/Makefile index f89d96f..e70fa6e 100644 --- a/arch/x86_64/boot/compressed/Makefile +++ b/arch/x86_64/boot/compressed/Makefile
@@ -7,7 +7,8 @@ # targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o -EXTRA_AFLAGS := -traditional -m32 +EXTRA_AFLAGS := -traditional +AFLAGS := $(subst -m64,-m32,$(AFLAGS)) # cannot use EXTRA_CFLAGS because base CFLAGS contains -mkernel which conflicts with # -m32
diff --git a/arch/x86_64/boot/setup.S b/arch/x86_64/boot/setup.S index a50b631..c3bfd22 100644 --- a/arch/x86_64/boot/setup.S +++ b/arch/x86_64/boot/setup.S
@@ -526,12 +526,12 @@ movw %cs, %ax # aka SETUPSEG subw $DELTA_INITSEG, %ax # aka INITSEG movw %ax, %ds - movw $0, (0x1ff) # default is no pointing device + movb $0, (0x1ff) # default is no pointing device int $0x11 # int 0x11: equipment list testb $0x04, %al # check if mouse installed jz no_psmouse - movw $0xAA, (0x1ff) # device present + movb $0xAA, (0x1ff) # device present no_psmouse: #include "../../i386/boot/edd.S"
diff --git a/arch/x86_64/defconfig b/arch/x86_64/defconfig index 5fb9707..647610e 100644 --- a/arch/x86_64/defconfig +++ b/arch/x86_64/defconfig
@@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.18-rc4 -# Thu Aug 24 21:05:55 2006 +# Linux kernel version: 2.6.18-git5 +# Tue Sep 26 09:30:47 2006 # CONFIG_X86_64=y CONFIG_64BIT=y @@ -19,6 +19,7 @@ CONFIG_GENERIC_IOMAP=y CONFIG_ARCH_MAY_HAVE_PC_FDC=y CONFIG_DMI=y +CONFIG_AUDIT_ARCH=y CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # @@ -38,16 +39,16 @@ CONFIG_POSIX_MQUEUE=y # CONFIG_BSD_PROCESS_ACCT is not set # CONFIG_TASKSTATS is not set -CONFIG_SYSCTL=y # CONFIG_AUDIT is not set CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y # CONFIG_CPUSETS is not set # CONFIG_RELAY is not set CONFIG_INITRAMFS_SOURCE="" -CONFIG_UID16=y CONFIG_CC_OPTIMIZE_FOR_SIZE=y # CONFIG_EMBEDDED is not set +CONFIG_UID16=y +CONFIG_SYSCTL=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y # CONFIG_KALLSYMS_EXTRA_PASS is not set @@ -56,12 +57,12 @@ CONFIG_BUG=y CONFIG_ELF_CORE=y CONFIG_BASE_FULL=y -CONFIG_RT_MUTEXES=y CONFIG_FUTEX=y CONFIG_EPOLL=y CONFIG_SHMEM=y CONFIG_SLAB=y CONFIG_VM_EVENT_COUNTERS=y +CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 # CONFIG_SLOB is not set @@ -160,6 +161,7 @@ # CONFIG_CRASH_DUMP is not set CONFIG_PHYSICAL_START=0x200000 CONFIG_SECCOMP=y +# CONFIG_CC_STACKPROTECTOR is not set # CONFIG_HZ_100 is not set CONFIG_HZ_250=y # CONFIG_HZ_1000 is not set @@ -307,18 +309,23 @@ CONFIG_INET_DIAG=y CONFIG_INET_TCP_DIAG=y # CONFIG_TCP_CONG_ADVANCED is not set -CONFIG_TCP_CONG_BIC=y +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" CONFIG_IPV6=y # CONFIG_IPV6_PRIVACY is not set # CONFIG_IPV6_ROUTER_PREF is not set # CONFIG_INET6_AH is not set # CONFIG_INET6_ESP is not set # CONFIG_INET6_IPCOMP is not set +# CONFIG_IPV6_MIP6 is not set # CONFIG_INET6_XFRM_TUNNEL is not set # CONFIG_INET6_TUNNEL is not set # CONFIG_INET6_XFRM_MODE_TRANSPORT is not set # CONFIG_INET6_XFRM_MODE_TUNNEL is not set +# CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set # CONFIG_IPV6_TUNNEL is not set +# CONFIG_IPV6_SUBTREES is not set +# CONFIG_IPV6_MULTIPLE_TABLES is not set # CONFIG_NETWORK_SECMARK is not set # CONFIG_NETFILTER is not set @@ -345,7 +352,6 @@ # CONFIG_ATALK is not set # CONFIG_X25 is not set # CONFIG_LAPB is not set -# CONFIG_NET_DIVERT is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set @@ -487,6 +493,7 @@ # # CONFIG_RAID_ATTRS is not set CONFIG_SCSI=y +CONFIG_SCSI_NETLINK=y # CONFIG_SCSI_PROC_FS is not set # @@ -508,12 +515,13 @@ # CONFIG_SCSI_LOGGING is not set # -# SCSI Transport Attributes +# SCSI Transports # CONFIG_SCSI_SPI_ATTRS=y CONFIG_SCSI_FC_ATTRS=y # CONFIG_SCSI_ISCSI_ATTRS is not set CONFIG_SCSI_SAS_ATTRS=y +# CONFIG_SCSI_SAS_LIBSAS is not set # # SCSI low-level drivers @@ -532,29 +540,14 @@ # CONFIG_AIC79XX_DEBUG_ENABLE is not set CONFIG_AIC79XX_DEBUG_MASK=0 # CONFIG_AIC79XX_REG_PRETTY_PRINT is not set +# CONFIG_SCSI_AIC94XX is not set +# CONFIG_SCSI_ARCMSR is not set CONFIG_MEGARAID_NEWGEN=y CONFIG_MEGARAID_MM=y CONFIG_MEGARAID_MAILBOX=y # CONFIG_MEGARAID_LEGACY is not set CONFIG_MEGARAID_SAS=y -CONFIG_SCSI_SATA=y -CONFIG_SCSI_SATA_AHCI=y -CONFIG_SCSI_SATA_SVW=y -CONFIG_SCSI_ATA_PIIX=y -# CONFIG_SCSI_SATA_MV is not set -CONFIG_SCSI_SATA_NV=y -# CONFIG_SCSI_PDC_ADMA is not set # CONFIG_SCSI_HPTIOP is not set -# CONFIG_SCSI_SATA_QSTOR is not set -# CONFIG_SCSI_SATA_PROMISE is not set -# CONFIG_SCSI_SATA_SX4 is not set -CONFIG_SCSI_SATA_SIL=y -# CONFIG_SCSI_SATA_SIL24 is not set -# CONFIG_SCSI_SATA_SIS is not set -# CONFIG_SCSI_SATA_ULI is not set -CONFIG_SCSI_SATA_VIA=y -# CONFIG_SCSI_SATA_VITESSE is not set -CONFIG_SCSI_SATA_INTEL_COMBINED=y # CONFIG_SCSI_BUSLOGIC is not set # CONFIG_SCSI_DMX3191D is not set # CONFIG_SCSI_EATA is not set @@ -563,6 +556,7 @@ # CONFIG_SCSI_IPS is not set # CONFIG_SCSI_INITIO is not set # CONFIG_SCSI_INIA100 is not set +# CONFIG_SCSI_STEX is not set # CONFIG_SCSI_SYM53C8XX_2 is not set # CONFIG_SCSI_IPR is not set # CONFIG_SCSI_QLOGIC_1280 is not set @@ -573,6 +567,62 @@ # CONFIG_SCSI_DEBUG is not set # +# Serial ATA (prod) and Parallel ATA (experimental) drivers +# +CONFIG_ATA=y +CONFIG_SATA_AHCI=y +CONFIG_SATA_SVW=y +CONFIG_ATA_PIIX=y +# CONFIG_SATA_MV is not set +CONFIG_SATA_NV=y +# CONFIG_PDC_ADMA is not set +# CONFIG_SATA_QSTOR is not set +# CONFIG_SATA_PROMISE is not set +# CONFIG_SATA_SX4 is not set +CONFIG_SATA_SIL=y +# CONFIG_SATA_SIL24 is not set +# CONFIG_SATA_SIS is not set +# CONFIG_SATA_ULI is not set +CONFIG_SATA_VIA=y +# CONFIG_SATA_VITESSE is not set +CONFIG_SATA_INTEL_COMBINED=y +# CONFIG_PATA_ALI is not set +# CONFIG_PATA_AMD is not set +# CONFIG_PATA_ARTOP is not set +# CONFIG_PATA_ATIIXP is not set +# CONFIG_PATA_CMD64X is not set +# CONFIG_PATA_CS5520 is not set +# CONFIG_PATA_CS5530 is not set +# CONFIG_PATA_CYPRESS is not set +# CONFIG_PATA_EFAR is not set +# CONFIG_ATA_GENERIC is not set +# CONFIG_PATA_HPT366 is not set +# CONFIG_PATA_HPT37X is not set +# CONFIG_PATA_HPT3X2N is not set +# CONFIG_PATA_HPT3X3 is not set +# CONFIG_PATA_IT821X is not set +# CONFIG_PATA_JMICRON is not set +# CONFIG_PATA_LEGACY is not set +# CONFIG_PATA_TRIFLEX is not set +# CONFIG_PATA_MPIIX is not set +# CONFIG_PATA_OLDPIIX is not set +# CONFIG_PATA_NETCELL is not set +# CONFIG_PATA_NS87410 is not set +# CONFIG_PATA_OPTI is not set +# CONFIG_PATA_OPTIDMA is not set +# CONFIG_PATA_PDC_OLD is not set +# CONFIG_PATA_QDI is not set +# CONFIG_PATA_RADISYS is not set +# CONFIG_PATA_RZ1000 is not set +# CONFIG_PATA_SC1200 is not set +# CONFIG_PATA_SERVERWORKS is not set +# CONFIG_PATA_PDC2027X is not set +# CONFIG_PATA_SIL680 is not set +# CONFIG_PATA_SIS is not set +# CONFIG_PATA_VIA is not set +# CONFIG_PATA_WINBOND is not set + +# # Multi-device support (RAID and LVM) # CONFIG_MD=y @@ -678,6 +728,7 @@ # CONFIG_ADAPTEC_STARFIRE is not set CONFIG_B44=y CONFIG_FORCEDETH=y +# CONFIG_FORCEDETH_NAPI is not set # CONFIG_DGRS is not set # CONFIG_EEPRO100 is not set CONFIG_E100=y @@ -714,6 +765,7 @@ # CONFIG_VIA_VELOCITY is not set CONFIG_TIGON3=y CONFIG_BNX2=y +# CONFIG_QLA3XXX is not set # # Ethernet (10000 Mbit) @@ -1036,6 +1088,7 @@ # Open Sound System # CONFIG_SOUND_PRIME=y +CONFIG_OSS_OBSOLETE_DRIVER=y # CONFIG_SOUND_BT878 is not set # CONFIG_SOUND_EMU10K1 is not set # CONFIG_SOUND_FUSION is not set @@ -1046,7 +1099,6 @@ # CONFIG_SOUND_MSNDPIN is not set # CONFIG_SOUND_VIA82CXXX is not set # CONFIG_SOUND_OSS is not set -# CONFIG_SOUND_TVMIXER is not set # # USB support @@ -1203,7 +1255,6 @@ # InfiniBand support # # CONFIG_INFINIBAND is not set -# CONFIG_IPATH_CORE is not set # # EDAC - error detection and reporting (RAS) (EXPERIMENTAL) @@ -1449,10 +1500,6 @@ # CONFIG_CRYPTO is not set # -# Hardware crypto devices -# - -# # Library routines # # CONFIG_CRC_CCITT is not set
diff --git a/arch/x86_64/ia32/ia32_aout.c b/arch/x86_64/ia32/ia32_aout.c index 3bf58af..396d3c1 100644 --- a/arch/x86_64/ia32/ia32_aout.c +++ b/arch/x86_64/ia32/ia32_aout.c
@@ -333,7 +333,8 @@ return error; } - error = bprm->file->f_op->read(bprm->file, (char *)text_addr, + error = bprm->file->f_op->read(bprm->file, + (char __user *)text_addr, ex.a_text+ex.a_data, &pos); if ((signed long)error < 0) { send_sig(SIGKILL, current, 0); @@ -366,7 +367,8 @@ down_write(¤t->mm->mmap_sem); do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data); up_write(¤t->mm->mmap_sem); - bprm->file->f_op->read(bprm->file,(char *)N_TXTADDR(ex), + bprm->file->f_op->read(bprm->file, + (char __user *)N_TXTADDR(ex), ex.a_text+ex.a_data, &pos); flush_icache_range((unsigned long) N_TXTADDR(ex), (unsigned long) N_TXTADDR(ex) + @@ -477,7 +479,7 @@ do_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss); up_write(¤t->mm->mmap_sem); - file->f_op->read(file, (char *)start_addr, + file->f_op->read(file, (char __user *)start_addr, ex.a_text + ex.a_data, &pos); flush_icache_range((unsigned long) start_addr, (unsigned long) start_addr + ex.a_text + ex.a_data);
diff --git a/arch/x86_64/ia32/ia32_signal.c b/arch/x86_64/ia32/ia32_signal.c index 25e5ca2..a6ba995 100644 --- a/arch/x86_64/ia32/ia32_signal.c +++ b/arch/x86_64/ia32/ia32_signal.c
@@ -113,25 +113,19 @@ } asmlinkage long -sys32_sigsuspend(int history0, int history1, old_sigset_t mask, - struct pt_regs *regs) +sys32_sigsuspend(int history0, int history1, old_sigset_t mask) { - sigset_t saveset; - mask &= _BLOCKABLE; spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; + current->saved_sigmask = current->blocked; siginitset(¤t->blocked, mask); recalc_sigpending(); spin_unlock_irq(¤t->sighand->siglock); - regs->rax = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(regs, &saveset)) - return -EINTR; - } + current->state = TASK_INTERRUPTIBLE; + schedule(); + set_thread_flag(TIF_RESTORE_SIGMASK); + return -ERESTARTNOHAND; } asmlinkage long @@ -437,15 +431,7 @@ if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) goto give_sigsegv; - { - struct exec_domain *ed = current_thread_info()->exec_domain; - err |= __put_user((ed - && ed->signal_invmap - && sig < 32 - ? ed->signal_invmap[sig] - : sig), - &frame->sig); - } + err |= __put_user(sig, &frame->sig); if (err) goto give_sigsegv; @@ -492,6 +478,11 @@ regs->rsp = (unsigned long) frame; regs->rip = (unsigned long) ka->sa.sa_handler; + /* Make -mregparm=3 work */ + regs->rax = sig; + regs->rdx = 0; + regs->rcx = 0; + asm volatile("movl %0,%%ds" :: "r" (__USER32_DS)); asm volatile("movl %0,%%es" :: "r" (__USER32_DS)); @@ -499,20 +490,20 @@ regs->ss = __USER32_DS; set_fs(USER_DS); - regs->eflags &= ~TF_MASK; - if (test_thread_flag(TIF_SINGLESTEP)) - ptrace_notify(SIGTRAP); + regs->eflags &= ~TF_MASK; + if (test_thread_flag(TIF_SINGLESTEP)) + ptrace_notify(SIGTRAP); #if DEBUG_SIG printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n", current->comm, current->pid, frame, regs->rip, frame->pretcode); #endif - return 1; + return 0; give_sigsegv: force_sigsegv(sig, current); - return 0; + return -EFAULT; } int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, @@ -595,18 +586,18 @@ regs->ss = __USER32_DS; set_fs(USER_DS); - regs->eflags &= ~TF_MASK; - if (test_thread_flag(TIF_SINGLESTEP)) - ptrace_notify(SIGTRAP); + regs->eflags &= ~TF_MASK; + if (test_thread_flag(TIF_SINGLESTEP)) + ptrace_notify(SIGTRAP); #if DEBUG_SIG printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n", current->comm, current->pid, frame, regs->rip, frame->pretcode); #endif - return 1; + return 0; give_sigsegv: force_sigsegv(sig, current); - return 0; + return -EFAULT; }
diff --git a/arch/x86_64/ia32/ia32entry.S b/arch/x86_64/ia32/ia32entry.S index 5d4a7d1..b4aa875 100644 --- a/arch/x86_64/ia32/ia32entry.S +++ b/arch/x86_64/ia32/ia32entry.S
@@ -71,6 +71,7 @@ */ ENTRY(ia32_sysenter_target) CFI_STARTPROC32 simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,0 CFI_REGISTER rsp,rbp swapgs @@ -186,6 +187,7 @@ */ ENTRY(ia32_cstar_target) CFI_STARTPROC32 simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,PDA_STACKOFFSET CFI_REGISTER rip,rcx /*CFI_REGISTER rflags,r11*/ @@ -293,6 +295,7 @@ ENTRY(ia32_syscall) CFI_STARTPROC simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,SS+8-RIP /*CFI_REL_OFFSET ss,SS-RIP*/ CFI_REL_OFFSET rsp,RSP-RIP @@ -370,6 +373,7 @@ popq %r11 CFI_ENDPROC CFI_STARTPROC32 simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,SS+8-ARGOFFSET CFI_REL_OFFSET rax,RAX-ARGOFFSET CFI_REL_OFFSET rcx,RCX-ARGOFFSET @@ -703,8 +707,8 @@ .quad sys_readlinkat /* 305 */ .quad sys_fchmodat .quad sys_faccessat - .quad quiet_ni_syscall /* pselect6 for now */ - .quad quiet_ni_syscall /* ppoll for now */ + .quad compat_sys_pselect6 + .quad compat_sys_ppoll .quad sys_unshare /* 310 */ .quad compat_sys_set_robust_list .quad compat_sys_get_robust_list @@ -713,4 +717,5 @@ .quad sys_tee .quad compat_sys_vmsplice .quad compat_sys_move_pages + .quad sys_getcpu ia32_syscall_end:
diff --git a/arch/x86_64/ia32/ptrace32.c b/arch/x86_64/ia32/ptrace32.c index 659c072..d18198e 100644 --- a/arch/x86_64/ia32/ptrace32.c +++ b/arch/x86_64/ia32/ptrace32.c
@@ -117,6 +117,10 @@ if ((0x5454 >> ((val >> (16 + 4*i)) & 0xf)) & 1) return -EIO; child->thread.debugreg7 = val; + if (val) + set_tsk_thread_flag(child, TIF_DEBUG); + else + clear_tsk_thread_flag(child, TIF_DEBUG); break; default: @@ -371,8 +375,10 @@ ret = -EIO; if (!access_ok(VERIFY_READ, u, sizeof(*u))) break; - /* no checking to be bug-to-bug compatible with i386 */ - __copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u)); + /* no checking to be bug-to-bug compatible with i386. */ + /* but silence warning */ + if (__copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u))) + ; set_stopped_child_used_math(child); child->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask; ret = 0;
diff --git a/arch/x86_64/ia32/sys_ia32.c b/arch/x86_64/ia32/sys_ia32.c index 9c13099..f280d36 100644 --- a/arch/x86_64/ia32/sys_ia32.c +++ b/arch/x86_64/ia32/sys_ia32.c
@@ -60,6 +60,7 @@ #include <linux/highuid.h> #include <linux/vmalloc.h> #include <linux/fsnotify.h> +#include <linux/sysctl.h> #include <asm/mman.h> #include <asm/types.h> #include <asm/uaccess.h> @@ -389,7 +390,9 @@ } } set_fs (KERNEL_DS); - ret = sys_rt_sigprocmask(how, set ? &s : NULL, oset ? &s : NULL, + ret = sys_rt_sigprocmask(how, + set ? (sigset_t __user *)&s : NULL, + oset ? (sigset_t __user *)&s : NULL, sigsetsize); set_fs (old_fs); if (ret) return ret; @@ -541,7 +544,7 @@ int bitcount = 0; set_fs (KERNEL_DS); - ret = sys_sysinfo(&s); + ret = sys_sysinfo((struct sysinfo __user *)&s); set_fs (old_fs); /* Check to see if any memory value is too large for 32-bit and scale @@ -589,7 +592,7 @@ mm_segment_t old_fs = get_fs (); set_fs (KERNEL_DS); - ret = sys_sched_rr_get_interval(pid, &t); + ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t); set_fs (old_fs); if (put_compat_timespec(&t, interval)) return -EFAULT; @@ -605,7 +608,7 @@ mm_segment_t old_fs = get_fs(); set_fs (KERNEL_DS); - ret = sys_rt_sigpending(&s, sigsetsize); + ret = sys_rt_sigpending((sigset_t __user *)&s, sigsetsize); set_fs (old_fs); if (!ret) { switch (_NSIG_WORDS) { @@ -630,7 +633,7 @@ if (copy_siginfo_from_user32(&info, uinfo)) return -EFAULT; set_fs (KERNEL_DS); - ret = sys_rt_sigqueueinfo(pid, sig, &info); + ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *)&info); set_fs (old_fs); return ret; } @@ -645,7 +648,7 @@ } -#ifdef CONFIG_SYSCTL +#ifdef CONFIG_SYSCTL_SYSCALL struct sysctl_ia32 { unsigned int name; int nlen; @@ -666,9 +669,6 @@ size_t oldlen; int __user *namep; long ret; - extern int do_sysctl(int *name, int nlen, void *oldval, size_t *oldlenp, - void *newval, size_t newlen); - if (copy_from_user(&a32, args32, sizeof (a32))) return -EFAULT; @@ -692,7 +692,8 @@ set_fs(KERNEL_DS); lock_kernel(); - ret = do_sysctl(namep, a32.nlen, oldvalp, &oldlen, newvalp, (size_t) a32.newlen); + ret = do_sysctl(namep, a32.nlen, oldvalp, (size_t __user *)&oldlen, + newvalp, (size_t) a32.newlen); unlock_kernel(); set_fs(old_fs); @@ -743,7 +744,8 @@ return -EFAULT; set_fs(KERNEL_DS); - ret = sys_sendfile(out_fd, in_fd, offset ? &of : NULL, count); + ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, + count); set_fs(old_fs); if (offset && put_user(of, offset)) @@ -778,7 +780,7 @@ asmlinkage long sys32_olduname(struct oldold_utsname __user * name) { - int error; + int err; if (!name) return -EFAULT; @@ -787,27 +789,31 @@ down_read(&uts_sem); - error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN); - __put_user(0,name->sysname+__OLD_UTS_LEN); - __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN); - __put_user(0,name->nodename+__OLD_UTS_LEN); - __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN); - __put_user(0,name->release+__OLD_UTS_LEN); - __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN); - __put_user(0,name->version+__OLD_UTS_LEN); + err = __copy_to_user(&name->sysname,&system_utsname.sysname, + __OLD_UTS_LEN); + err |= __put_user(0,name->sysname+__OLD_UTS_LEN); + err |= __copy_to_user(&name->nodename,&system_utsname.nodename, + __OLD_UTS_LEN); + err |= __put_user(0,name->nodename+__OLD_UTS_LEN); + err |= __copy_to_user(&name->release,&system_utsname.release, + __OLD_UTS_LEN); + err |= __put_user(0,name->release+__OLD_UTS_LEN); + err |= __copy_to_user(&name->version,&system_utsname.version, + __OLD_UTS_LEN); + err |= __put_user(0,name->version+__OLD_UTS_LEN); { char *arch = "x86_64"; if (personality(current->personality) == PER_LINUX32) arch = "i686"; - __copy_to_user(&name->machine,arch,strlen(arch)+1); + err |= __copy_to_user(&name->machine,arch,strlen(arch)+1); } up_read(&uts_sem); - error = error ? -EFAULT : 0; + err = err ? -EFAULT : 0; - return error; + return err; } long sys32_uname(struct old_utsname __user * name) @@ -831,7 +837,7 @@ seg = get_fs(); set_fs(KERNEL_DS); - ret = sys_ustat(dev,&u); + ret = sys_ustat(dev, (struct ustat __user *)&u); set_fs(seg); if (ret >= 0) { if (!access_ok(VERIFY_WRITE,u32p,sizeof(struct ustat32)) ||
diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile index b5aaeaf..3c7cbff 100644 --- a/arch/x86_64/kernel/Makefile +++ b/arch/x86_64/kernel/Makefile
@@ -11,7 +11,7 @@ pci-dma.o pci-nommu.o alternative.o obj-$(CONFIG_STACKTRACE) += stacktrace.o -obj-$(CONFIG_X86_MCE) += mce.o +obj-$(CONFIG_X86_MCE) += mce.o therm_throt.o obj-$(CONFIG_X86_MCE_INTEL) += mce_intel.o obj-$(CONFIG_X86_MCE_AMD) += mce_amd.o obj-$(CONFIG_MTRR) += ../../i386/kernel/cpu/mtrr/ @@ -20,8 +20,8 @@ obj-$(CONFIG_MICROCODE) += microcode.o obj-$(CONFIG_X86_CPUID) += cpuid.o obj-$(CONFIG_SMP) += smp.o smpboot.o trampoline.o -obj-$(CONFIG_X86_LOCAL_APIC) += apic.o nmi.o -obj-$(CONFIG_X86_IO_APIC) += io_apic.o mpparse.o \ +obj-y += apic.o nmi.o +obj-y += io_apic.o mpparse.o \ genapic.o genapic_cluster.o genapic_flat.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o crash.o obj-$(CONFIG_CRASH_DUMP) += crash_dump.o @@ -39,12 +39,14 @@ obj-$(CONFIG_AUDIT) += audit.o obj-$(CONFIG_MODULES) += module.o +obj-$(CONFIG_PCI) += early-quirks.o obj-y += topology.o obj-y += intel_cacheinfo.o CFLAGS_vsyscall.o := $(PROFILING) -g0 +therm_throt-y += ../../i386/kernel/cpu/mcheck/therm_throt.o bootflag-y += ../../i386/kernel/bootflag.o cpuid-$(subst m,y,$(CONFIG_X86_CPUID)) += ../../i386/kernel/cpuid.o topology-y += ../../i386/kernel/topology.o @@ -54,4 +56,3 @@ i8237-y += ../../i386/kernel/i8237.o msr-$(subst m,y,$(CONFIG_X86_MSR)) += ../../i386/kernel/msr.o alternative-y += ../../i386/kernel/alternative.o -
diff --git a/arch/x86_64/kernel/aperture.c b/arch/x86_64/kernel/aperture.c index 58af8e7..b487396 100644 --- a/arch/x86_64/kernel/aperture.c +++ b/arch/x86_64/kernel/aperture.c
@@ -17,6 +17,7 @@ #include <linux/pci_ids.h> #include <linux/pci.h> #include <linux/bitops.h> +#include <linux/ioport.h> #include <asm/e820.h> #include <asm/io.h> #include <asm/proto.h> @@ -33,6 +34,18 @@ int fix_aperture __initdata = 1; +static struct resource gart_resource = { + .name = "GART", + .flags = IORESOURCE_MEM, +}; + +static void __init insert_aperture_resource(u32 aper_base, u32 aper_size) +{ + gart_resource.start = aper_base; + gart_resource.end = aper_base + aper_size - 1; + insert_resource(&iomem_resource, &gart_resource); +} + /* This code runs before the PCI subsystem is initialized, so just access the northbridge directly. */ @@ -48,7 +61,7 @@ /* * Aperture has to be naturally aligned. This means an 2GB aperture won't - * have much chances to find a place in the lower 4GB of memory. + * have much chance of finding a place in the lower 4GB of memory. * Unfortunately we cannot move it up because that would make the * IOMMU useless. */ @@ -62,6 +75,7 @@ } printk("Mapping aperture over %d KB of RAM @ %lx\n", aper_size >> 10, __pa(p)); + insert_aperture_resource((u32)__pa(p), aper_size); return (u32)__pa(p); } @@ -198,7 +212,7 @@ u64 aper_base, last_aper_base = 0; int valid_agp = 0; - if (iommu_aperture_disabled || !fix_aperture) + if (iommu_aperture_disabled || !fix_aperture || !early_pci_allowed()) return; printk("Checking aperture...\n"); @@ -233,8 +247,13 @@ last_aper_base = aper_base; } - if (!fix && !fallback_aper_force) + if (!fix && !fallback_aper_force) { + if (last_aper_base) { + unsigned long n = (32 * 1024 * 1024) << last_aper_order; + insert_aperture_resource((u32)last_aper_base, n); + } return; + } if (!fallback_aper_force) aper_alloc = search_agp_bridge(&aper_order, &valid_agp);
diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c index 2b8cef0..135ff25 100644 --- a/arch/x86_64/kernel/apic.c +++ b/arch/x86_64/kernel/apic.c
@@ -25,6 +25,7 @@ #include <linux/kernel_stat.h> #include <linux/sysdev.h> #include <linux/module.h> +#include <linux/ioport.h> #include <asm/atomic.h> #include <asm/smp.h> @@ -36,13 +37,20 @@ #include <asm/idle.h> #include <asm/proto.h> #include <asm/timex.h> +#include <asm/apic.h> +int apic_mapped; int apic_verbosity; int apic_runs_main_timer; int apic_calibrate_pmtmr __initdata; int disable_apic_timer __initdata; +static struct resource lapic_resource = { + .name = "Local APIC", + .flags = IORESOURCE_MEM | IORESOURCE_BUSY, +}; + /* * cpu_mask that denotes the CPUs that needs timer interrupt coming in as * IPIs in place of local APIC timers @@ -136,72 +144,40 @@ apic_read(APIC_ESR); } -void __init connect_bsp_APIC(void) -{ - if (pic_mode) { - /* - * Do not trust the local APIC being empty at bootup. - */ - clear_local_APIC(); - /* - * PIC mode, enable APIC mode in the IMCR, i.e. - * connect BSP's local APIC to INT and NMI lines. - */ - apic_printk(APIC_VERBOSE, "leaving PIC mode, enabling APIC mode.\n"); - outb(0x70, 0x22); - outb(0x01, 0x23); - } -} - void disconnect_bsp_APIC(int virt_wire_setup) { - if (pic_mode) { - /* - * Put the board back into PIC mode (has an effect - * only on certain older boards). Note that APIC - * interrupts, including IPIs, won't work beyond - * this point! The only exception are INIT IPIs. - */ - apic_printk(APIC_QUIET, "disabling APIC mode, entering PIC mode.\n"); - outb(0x70, 0x22); - outb(0x00, 0x23); + /* Go back to Virtual Wire compatibility mode */ + unsigned long value; + + /* For the spurious interrupt use vector F, and enable it */ + value = apic_read(APIC_SPIV); + value &= ~APIC_VECTOR_MASK; + value |= APIC_SPIV_APIC_ENABLED; + value |= 0xf; + apic_write(APIC_SPIV, value); + + if (!virt_wire_setup) { + /* For LVT0 make it edge triggered, active high, external and enabled */ + value = apic_read(APIC_LVT0); + value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING | + APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR | + APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED ); + value |= APIC_LVT_REMOTE_IRR | APIC_SEND_PENDING; + value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_EXTINT); + apic_write(APIC_LVT0, value); + } else { + /* Disable LVT0 */ + apic_write(APIC_LVT0, APIC_LVT_MASKED); } - else { - /* Go back to Virtual Wire compatibility mode */ - unsigned long value; - /* For the spurious interrupt use vector F, and enable it */ - value = apic_read(APIC_SPIV); - value &= ~APIC_VECTOR_MASK; - value |= APIC_SPIV_APIC_ENABLED; - value |= 0xf; - apic_write(APIC_SPIV, value); - - if (!virt_wire_setup) { - /* For LVT0 make it edge triggered, active high, external and enabled */ - value = apic_read(APIC_LVT0); - value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING | - APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR | - APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED ); - value |= APIC_LVT_REMOTE_IRR | APIC_SEND_PENDING; - value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_EXTINT); - apic_write(APIC_LVT0, value); - } - else { - /* Disable LVT0 */ - apic_write(APIC_LVT0, APIC_LVT_MASKED); - } - - /* For LVT1 make it edge triggered, active high, nmi and enabled */ - value = apic_read(APIC_LVT1); - value &= ~( - APIC_MODE_MASK | APIC_SEND_PENDING | + /* For LVT1 make it edge triggered, active high, nmi and enabled */ + value = apic_read(APIC_LVT1); + value &= ~(APIC_MODE_MASK | APIC_SEND_PENDING | APIC_INPUT_POLARITY | APIC_LVT_REMOTE_IRR | APIC_LVT_LEVEL_TRIGGER | APIC_LVT_MASKED); - value |= APIC_LVT_REMOTE_IRR | APIC_SEND_PENDING; - value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_NMI); - apic_write(APIC_LVT1, value); - } + value |= APIC_LVT_REMOTE_IRR | APIC_SEND_PENDING; + value = SET_APIC_DELIVERY_MODE(value, APIC_MODE_NMI); + apic_write(APIC_LVT1, value); } void disable_local_APIC(void) @@ -297,8 +273,6 @@ | APIC_DM_INIT); } -extern void __error_in_apic_c (void); - /* * An initial setup of the virtual wire mode. */ @@ -345,8 +319,7 @@ value = apic_read(APIC_LVR); - if ((SPURIOUS_APIC_VECTOR & 0x0f) != 0x0f) - __error_in_apic_c(); + BUILD_BUG_ON((SPURIOUS_APIC_VECTOR & 0x0f) != 0x0f); /* * Double-check whether this APIC is really registered. @@ -399,32 +372,8 @@ */ value |= APIC_SPIV_APIC_ENABLED; - /* - * Some unknown Intel IO/APIC (or APIC) errata is biting us with - * certain networking cards. If high frequency interrupts are - * happening on a particular IOAPIC pin, plus the IOAPIC routing - * entry is masked/unmasked at a high rate as well then sooner or - * later IOAPIC line gets 'stuck', no more interrupts are received - * from the device. If focus CPU is disabled then the hang goes - * away, oh well :-( - * - * [ This bug can be reproduced easily with a level-triggered - * PCI Ne2000 networking cards and PII/PIII processors, dual - * BX chipset. ] - */ - /* - * Actually disabling the focus CPU check just makes the hang less - * frequent as it makes the interrupt distributon model be more - * like LRU than MRU (the short-term load is more even across CPUs). - * See also the comment in end_level_ioapic_irq(). --macro - */ -#if 1 - /* Enable focus processor (bit==0) */ - value &= ~APIC_SPIV_FOCUS_DISABLED; -#else - /* Disable focus processor (bit==1) */ - value |= APIC_SPIV_FOCUS_DISABLED; -#endif + /* We always use processor focus */ + /* * Set spurious IRQ vector */ @@ -442,7 +391,7 @@ * TODO: set up through-local-APIC from through-I/O-APIC? --macro */ value = apic_read(APIC_LVT0) & APIC_LVT_MASKED; - if (!smp_processor_id() && (pic_mode || !value)) { + if (!smp_processor_id() && !value) { value = APIC_DM_EXTINT; apic_printk(APIC_VERBOSE, "enabled ExtINT on CPU#%d\n", smp_processor_id()); } else { @@ -479,8 +428,7 @@ } nmi_watchdog_default(); - if (nmi_watchdog == NMI_LOCAL_APIC) - setup_apic_nmi_watchdog(); + setup_apic_nmi_watchdog(NULL); apic_pm_activate(); } @@ -527,8 +475,7 @@ apic_pm_state.apic_tmict = apic_read(APIC_TMICT); apic_pm_state.apic_tdcr = apic_read(APIC_TDCR); apic_pm_state.apic_thmr = apic_read(APIC_LVTTHMR); - local_save_flags(flags); - local_irq_disable(); + local_irq_save(flags); disable_local_APIC(); local_irq_restore(flags); return 0; @@ -606,18 +553,24 @@ static int __init apic_set_verbosity(char *str) { + if (str == NULL) { + skip_ioapic_setup = 0; + ioapic_force = 1; + return 0; + } if (strcmp("debug", str) == 0) apic_verbosity = APIC_DEBUG; else if (strcmp("verbose", str) == 0) apic_verbosity = APIC_VERBOSE; - else + else { printk(KERN_WARNING "APIC Verbosity level %s not recognised" - " use apic=verbose or apic=debug", str); + " use apic=verbose or apic=debug\n", str); + return -EINVAL; + } - return 1; + return 0; } - -__setup("apic=", apic_set_verbosity); +early_param("apic", apic_set_verbosity); /* * Detect and enable local APICs on non-SMP boards. @@ -638,6 +591,40 @@ return 0; } +#ifdef CONFIG_X86_IO_APIC +static struct resource * __init ioapic_setup_resources(void) +{ +#define IOAPIC_RESOURCE_NAME_SIZE 11 + unsigned long n; + struct resource *res; + char *mem; + int i; + + if (nr_ioapics <= 0) + return NULL; + + n = IOAPIC_RESOURCE_NAME_SIZE + sizeof(struct resource); + n *= nr_ioapics; + + res = alloc_bootmem(n); + + if (!res) + return NULL; + + memset(res, 0, n); + mem = (void *)&res[nr_ioapics]; + + for (i = 0; i < nr_ioapics; i++) { + res[i].name = mem; + res[i].flags = IORESOURCE_MEM | IORESOURCE_BUSY; + snprintf(mem, IOAPIC_RESOURCE_NAME_SIZE, "IOAPIC %u", i); + mem += IOAPIC_RESOURCE_NAME_SIZE; + } + + return res; +} +#endif + void __init init_apic_mappings(void) { unsigned long apic_phys; @@ -654,19 +641,26 @@ apic_phys = mp_lapic_addr; set_fixmap_nocache(FIX_APIC_BASE, apic_phys); + apic_mapped = 1; apic_printk(APIC_VERBOSE,"mapped APIC to %16lx (%16lx)\n", APIC_BASE, apic_phys); + /* Put local APIC into the resource map. */ + lapic_resource.start = apic_phys; + lapic_resource.end = lapic_resource.start + PAGE_SIZE - 1; + insert_resource(&iomem_resource, &lapic_resource); + /* * Fetch the APIC ID of the BSP in case we have a * default configuration (or the MP table is broken). */ boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID)); -#ifdef CONFIG_X86_IO_APIC { unsigned long ioapic_phys, idx = FIX_IO_APIC_BASE_0; int i; + struct resource *ioapic_res; + ioapic_res = ioapic_setup_resources(); for (i = 0; i < nr_ioapics; i++) { if (smp_found_config) { ioapic_phys = mp_ioapics[i].mpc_apicaddr; @@ -678,9 +672,15 @@ apic_printk(APIC_VERBOSE,"mapped IOAPIC to %016lx (%016lx)\n", __fix_to_virt(idx), ioapic_phys); idx++; + + if (ioapic_res) { + ioapic_res->start = ioapic_phys; + ioapic_res->end = ioapic_phys + (4 * 1024) - 1; + insert_resource(&iomem_resource, ioapic_res); + ioapic_res++; + } } } -#endif } /* @@ -951,7 +951,7 @@ * We take the 'long' return path, and there every subsystem * grabs the appropriate locks (kernel lock/ irq lock). * - * we might want to decouple profiling from the 'long path', + * We might want to decouple profiling from the 'long path', * and do the profiling totally in assembly. * * Currently this isn't too much of an issue (performance wise), @@ -1123,19 +1123,15 @@ verify_local_APIC(); - connect_bsp_APIC(); - phys_cpu_present_map = physid_mask_of_physid(boot_cpu_id); apic_write(APIC_ID, SET_APIC_ID(boot_cpu_id)); setup_local_APIC(); -#ifdef CONFIG_X86_IO_APIC if (smp_found_config && !skip_ioapic_setup && nr_ioapics) - setup_IO_APIC(); + setup_IO_APIC(); else nr_ioapics = 0; -#endif setup_boot_APIC_clock(); check_nmi_watchdog(); return 0; @@ -1144,14 +1140,17 @@ static __init int setup_disableapic(char *str) { disable_apic = 1; - return 1; -} + clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability); + return 0; +} +early_param("disableapic", setup_disableapic); +/* same as disableapic, for compatibility */ static __init int setup_nolapic(char *str) { - disable_apic = 1; - return 1; + return setup_disableapic(str); } +early_param("nolapic", setup_nolapic); static __init int setup_noapictimer(char *str) { @@ -1184,11 +1183,5 @@ } __setup("apicpmtimer", setup_apicpmtimer); -/* dummy parsing: see setup.c */ - -__setup("disableapic", setup_disableapic); -__setup("nolapic", setup_nolapic); /* same as disableapic, for compatibility */ - __setup("noapictimer", setup_noapictimer); -/* no "lapic" flag - we only use the lapic when the BIOS tells us so. */
diff --git a/arch/x86_64/kernel/crash.c b/arch/x86_64/kernel/crash.c index d8d5750..3525f88 100644 --- a/arch/x86_64/kernel/crash.c +++ b/arch/x86_64/kernel/crash.c
@@ -23,6 +23,7 @@ #include <asm/nmi.h> #include <asm/hw_irq.h> #include <asm/mach_apic.h> +#include <asm/kdebug.h> /* This keeps a track of which one is crashing cpu. */ static int crashing_cpu; @@ -68,7 +69,7 @@ * for the data I pass, and I need tags * on the data to indicate what information I have * squirrelled away. ELF notes happen to provide - * all of that that no need to invent something new. + * all of that, no need to invent something new. */ buf = (u32*)per_cpu_ptr(crash_notes, cpu); @@ -95,15 +96,25 @@ #ifdef CONFIG_SMP static atomic_t waiting_for_crash_ipi; -static int crash_nmi_callback(struct pt_regs *regs, int cpu) +static int crash_nmi_callback(struct notifier_block *self, + unsigned long val, void *data) { + struct pt_regs *regs; + int cpu; + + if (val != DIE_NMI_IPI) + return NOTIFY_OK; + + regs = ((struct die_args *)data)->regs; + cpu = raw_smp_processor_id(); + /* * Don't do anything if this handler is invoked on crashing cpu. * Otherwise, system will completely hang. Crashing cpu can get * an NMI if system was initially booted with nmi_watchdog parameter. */ if (cpu == crashing_cpu) - return 1; + return NOTIFY_STOP; local_irq_disable(); crash_save_this_cpu(regs, cpu); @@ -127,12 +138,17 @@ * cpu hotplug shouldn't matter. */ +static struct notifier_block crash_nmi_nb = { + .notifier_call = crash_nmi_callback, +}; + static void nmi_shootdown_cpus(void) { unsigned long msecs; atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1); - set_nmi_callback(crash_nmi_callback); + if (register_die_notifier(&crash_nmi_nb)) + return; /* return what? */ /* * Ensure the new callback function is set before sending @@ -178,9 +194,7 @@ if(cpu_has_apic) disable_local_APIC(); -#if defined(CONFIG_X86_IO_APIC) disable_IO_APIC(); -#endif crash_save_self(regs); }
diff --git a/arch/x86_64/kernel/e820.c b/arch/x86_64/kernel/e820.c index d6d7f73..b3f0908 100644 --- a/arch/x86_64/kernel/e820.c +++ b/arch/x86_64/kernel/e820.c
@@ -16,6 +16,7 @@ #include <linux/string.h> #include <linux/kexec.h> #include <linux/module.h> +#include <linux/mm.h> #include <asm/pgtable.h> #include <asm/page.h> @@ -24,6 +25,8 @@ #include <asm/bootsetup.h> #include <asm/sections.h> +struct e820map e820 __initdata; + /* * PFN of last memory page. */ @@ -40,7 +43,7 @@ /* * Last pfn which the user wants to use. */ -unsigned long end_user_pfn = MAXMEM>>PAGE_SHIFT; +static unsigned long __initdata end_user_pfn = MAXMEM>>PAGE_SHIFT; extern struct resource code_resource, data_resource; @@ -69,12 +72,7 @@ return 1; } #endif - /* kernel code + 640k memory hole (later should not be needed, but - be paranoid for now) */ - if (last >= 640*1024 && addr < 1024*1024) { - *addrp = 1024*1024; - return 1; - } + /* kernel code */ if (last >= __pa_symbol(&_text) && last < __pa_symbol(&_end)) { *addrp = __pa_symbol(&_end); return 1; @@ -164,59 +162,14 @@ return -1UL; } -/* - * Free bootmem based on the e820 table for a node. - */ -void __init e820_bootmem_free(pg_data_t *pgdat, unsigned long start,unsigned long end) -{ - int i; - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; - unsigned long last, addr; - - if (ei->type != E820_RAM || - ei->addr+ei->size <= start || - ei->addr >= end) - continue; - - addr = round_up(ei->addr, PAGE_SIZE); - if (addr < start) - addr = start; - - last = round_down(ei->addr + ei->size, PAGE_SIZE); - if (last >= end) - last = end; - - if (last > addr && last-addr >= PAGE_SIZE) - free_bootmem_node(pgdat, addr, last-addr); - } -} - /* * Find the highest page frame number we have available */ unsigned long __init e820_end_of_ram(void) { - int i; unsigned long end_pfn = 0; + end_pfn = find_max_pfn_with_active_regions(); - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; - unsigned long start, end; - - start = round_up(ei->addr, PAGE_SIZE); - end = round_down(ei->addr + ei->size, PAGE_SIZE); - if (start >= end) - continue; - if (ei->type == E820_RAM) { - if (end > end_pfn<<PAGE_SHIFT) - end_pfn = end>>PAGE_SHIFT; - } else { - if (end > end_pfn_map<<PAGE_SHIFT) - end_pfn_map = end>>PAGE_SHIFT; - } - } - if (end_pfn > end_pfn_map) end_pfn_map = end_pfn; if (end_pfn_map > MAXMEM>>PAGE_SHIFT) @@ -226,43 +179,10 @@ if (end_pfn > end_pfn_map) end_pfn = end_pfn_map; + printk("end_pfn_map = %lu\n", end_pfn_map); return end_pfn; } -/* - * Compute how much memory is missing in a range. - * Unlike the other functions in this file the arguments are in page numbers. - */ -unsigned long __init -e820_hole_size(unsigned long start_pfn, unsigned long end_pfn) -{ - unsigned long ram = 0; - unsigned long start = start_pfn << PAGE_SHIFT; - unsigned long end = end_pfn << PAGE_SHIFT; - int i; - for (i = 0; i < e820.nr_map; i++) { - struct e820entry *ei = &e820.map[i]; - unsigned long last, addr; - - if (ei->type != E820_RAM || - ei->addr+ei->size <= start || - ei->addr >= end) - continue; - - addr = round_up(ei->addr, PAGE_SIZE); - if (addr < start) - addr = start; - - last = round_down(ei->addr + ei->size, PAGE_SIZE); - if (last >= end) - last = end; - - if (last > addr) - ram += last - addr; - } - return ((end - start) - ram) >> PAGE_SHIFT; -} - /* * Mark e820 reserved areas as busy for the resource manager. */ @@ -297,6 +217,96 @@ } } +/* Mark pages corresponding to given address range as nosave */ +static void __init +e820_mark_nosave_range(unsigned long start, unsigned long end) +{ + unsigned long pfn, max_pfn; + + if (start >= end) + return; + + printk("Nosave address range: %016lx - %016lx\n", start, end); + max_pfn = end >> PAGE_SHIFT; + for (pfn = start >> PAGE_SHIFT; pfn < max_pfn; pfn++) + if (pfn_valid(pfn)) + SetPageNosave(pfn_to_page(pfn)); +} + +/* + * Find the ranges of physical addresses that do not correspond to + * e820 RAM areas and mark the corresponding pages as nosave for software + * suspend and suspend to RAM. + * + * This function requires the e820 map to be sorted and without any + * overlapping entries and assumes the first e820 area to be RAM. + */ +void __init e820_mark_nosave_regions(void) +{ + int i; + unsigned long paddr; + + paddr = round_down(e820.map[0].addr + e820.map[0].size, PAGE_SIZE); + for (i = 1; i < e820.nr_map; i++) { + struct e820entry *ei = &e820.map[i]; + + if (paddr < ei->addr) + e820_mark_nosave_range(paddr, + round_up(ei->addr, PAGE_SIZE)); + + paddr = round_down(ei->addr + ei->size, PAGE_SIZE); + if (ei->type != E820_RAM) + e820_mark_nosave_range(round_up(ei->addr, PAGE_SIZE), + paddr); + + if (paddr >= (end_pfn << PAGE_SHIFT)) + break; + } +} + +/* Walk the e820 map and register active regions within a node */ +void __init +e820_register_active_regions(int nid, unsigned long start_pfn, + unsigned long end_pfn) +{ + int i; + unsigned long ei_startpfn, ei_endpfn; + for (i = 0; i < e820.nr_map; i++) { + struct e820entry *ei = &e820.map[i]; + ei_startpfn = round_up(ei->addr, PAGE_SIZE) >> PAGE_SHIFT; + ei_endpfn = round_down(ei->addr + ei->size, PAGE_SIZE) + >> PAGE_SHIFT; + + /* Skip map entries smaller than a page */ + if (ei_startpfn > ei_endpfn) + continue; + + /* Check if end_pfn_map should be updated */ + if (ei->type != E820_RAM && ei_endpfn > end_pfn_map) + end_pfn_map = ei_endpfn; + + /* Skip if map is outside the node */ + if (ei->type != E820_RAM || + ei_endpfn <= start_pfn || + ei_startpfn >= end_pfn) + continue; + + /* Check for overlaps */ + if (ei_startpfn < start_pfn) + ei_startpfn = start_pfn; + if (ei_endpfn > end_pfn) + ei_endpfn = end_pfn; + + /* Obey end_user_pfn to save on memmap */ + if (ei_startpfn >= end_user_pfn) + continue; + if (ei_endpfn > end_user_pfn) + ei_endpfn = end_user_pfn; + + add_active_range(nid, ei_startpfn, ei_endpfn); + } +} + /* * Add a memory region to the kernel e820 map. */ @@ -517,13 +527,6 @@ * If we're lucky and live on a modern system, the setup code * will have given us a memory map that we can use to properly * set up memory. If we aren't, we'll fake a memory map. - * - * We check to see that the memory map contains at least 2 elements - * before we'll use it, because the detection code in setup.S may - * not be perfect and most every PC known to man has two memory - * regions: one from 0 to 640k, and one from 1mb up. (The IBM - * thinkpad 560x, for example, does not cooperate with the memory - * detection code.) */ static int __init copy_e820_map(struct e820entry * biosmap, int nr_map) { @@ -541,34 +544,19 @@ if (start > end) return -1; - /* - * Some BIOSes claim RAM in the 640k - 1M region. - * Not right. Fix it up. - * - * This should be removed on Hammer which is supposed to not - * have non e820 covered ISA mappings there, but I had some strange - * problems so it stays for now. -AK - */ - if (type == E820_RAM) { - if (start < 0x100000ULL && end > 0xA0000ULL) { - if (start < 0xA0000ULL) - add_memory_region(start, 0xA0000ULL-start, type); - if (end <= 0x100000ULL) - continue; - start = 0x100000ULL; - size = end - start; - } - } - add_memory_region(start, size, type); } while (biosmap++,--nr_map); return 0; } +void early_panic(char *msg) +{ + early_printk(msg); + panic(msg); +} + void __init setup_memory_region(void) { - char *who = "BIOS-e820"; - /* * Try to copy the BIOS-supplied E820-map. * @@ -576,51 +564,70 @@ * the next section from 1mb->appropriate_mem_k */ sanitize_e820_map(E820_MAP, &E820_MAP_NR); - if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) { - unsigned long mem_size; - - /* compare results from other methods and take the greater */ - if (ALT_MEM_K < EXT_MEM_K) { - mem_size = EXT_MEM_K; - who = "BIOS-88"; - } else { - mem_size = ALT_MEM_K; - who = "BIOS-e801"; - } - - e820.nr_map = 0; - add_memory_region(0, LOWMEMSIZE(), E820_RAM); - add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM); - } + if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) + early_panic("Cannot find a valid memory map"); printk(KERN_INFO "BIOS-provided physical RAM map:\n"); - e820_print_map(who); + e820_print_map("BIOS-e820"); } -void __init parse_memopt(char *p, char **from) -{ - end_user_pfn = memparse(p, from); - end_user_pfn >>= PAGE_SHIFT; -} - -void __init parse_memmapopt(char *p, char **from) +static int __init parse_memopt(char *p) { + if (!p) + return -EINVAL; + end_user_pfn = memparse(p, &p); + end_user_pfn >>= PAGE_SHIFT; + return 0; +} +early_param("mem", parse_memopt); + +static int userdef __initdata; + +static int __init parse_memmap_opt(char *p) +{ + char *oldp; unsigned long long start_at, mem_size; - mem_size = memparse(p, from); - p = *from; + if (!strcmp(p, "exactmap")) { +#ifdef CONFIG_CRASH_DUMP + /* If we are doing a crash dump, we + * still need to know the real mem + * size before original memory map is + * reset. + */ + saved_max_pfn = e820_end_of_ram(); +#endif + end_pfn_map = 0; + e820.nr_map = 0; + userdef = 1; + return 0; + } + + oldp = p; + mem_size = memparse(p, &p); + if (p == oldp) + return -EINVAL; if (*p == '@') { - start_at = memparse(p+1, from); + start_at = memparse(p+1, &p); add_memory_region(start_at, mem_size, E820_RAM); } else if (*p == '#') { - start_at = memparse(p+1, from); + start_at = memparse(p+1, &p); add_memory_region(start_at, mem_size, E820_ACPI); } else if (*p == '$') { - start_at = memparse(p+1, from); + start_at = memparse(p+1, &p); add_memory_region(start_at, mem_size, E820_RESERVED); } else { end_user_pfn = (mem_size >> PAGE_SHIFT); } - p = *from; + return *p == '\0' ? 0 : -EINVAL; +} +early_param("memmap", parse_memmap_opt); + +void finish_e820_parsing(void) +{ + if (userdef) { + printk(KERN_INFO "user-defined physical RAM map:\n"); + e820_print_map("user"); + } } unsigned long pci_mem_start = 0xaeedbabe;
diff --git a/arch/x86_64/kernel/early-quirks.c b/arch/x86_64/kernel/early-quirks.c new file mode 100644 index 0000000..208e38a --- /dev/null +++ b/arch/x86_64/kernel/early-quirks.c
@@ -0,0 +1,122 @@ +/* Various workarounds for chipset bugs. + This code runs very early and can't use the regular PCI subsystem + The entries are keyed to PCI bridges which usually identify chipsets + uniquely. + This is only for whole classes of chipsets with specific problems which + need early invasive action (e.g. before the timers are initialized). + Most PCI device specific workarounds can be done later and should be + in standard PCI quirks + Mainboard specific bugs should be handled by DMI entries. + CPU specific bugs in setup.c */ + +#include <linux/pci.h> +#include <linux/acpi.h> +#include <linux/pci_ids.h> +#include <asm/pci-direct.h> +#include <asm/proto.h> +#include <asm/dma.h> + +static void via_bugs(void) +{ +#ifdef CONFIG_IOMMU + if ((end_pfn > MAX_DMA32_PFN || force_iommu) && + !iommu_aperture_allowed) { + printk(KERN_INFO + "Looks like a VIA chipset. Disabling IOMMU. Override with iommu=allowed\n"); + iommu_aperture_disabled = 1; + } +#endif +} + +#ifdef CONFIG_ACPI + +static int nvidia_hpet_detected __initdata; + +static int __init nvidia_hpet_check(unsigned long phys, unsigned long size) +{ + nvidia_hpet_detected = 1; + return 0; +} +#endif + +static void nvidia_bugs(void) +{ +#ifdef CONFIG_ACPI + /* + * All timer overrides on Nvidia are + * wrong unless HPET is enabled. + */ + nvidia_hpet_detected = 0; + acpi_table_parse(ACPI_HPET, nvidia_hpet_check); + if (nvidia_hpet_detected == 0) { + acpi_skip_timer_override = 1; + printk(KERN_INFO "Nvidia board " + "detected. Ignoring ACPI " + "timer override.\n"); + } +#endif + /* RED-PEN skip them on mptables too? */ + +} + +static void ati_bugs(void) +{ +#if 1 /* for testing */ + printk("ATI board detected\n"); +#endif + /* No bugs right now */ +} + +struct chipset { + u16 vendor; + void (*f)(void); +}; + +static struct chipset early_qrk[] = { + { PCI_VENDOR_ID_NVIDIA, nvidia_bugs }, + { PCI_VENDOR_ID_VIA, via_bugs }, + { PCI_VENDOR_ID_ATI, ati_bugs }, + {} +}; + +void __init early_quirks(void) +{ + int num, slot, func; + + if (!early_pci_allowed()) + return; + + /* Poor man's PCI discovery */ + for (num = 0; num < 32; num++) { + for (slot = 0; slot < 32; slot++) { + for (func = 0; func < 8; func++) { + u32 class; + u32 vendor; + u8 type; + int i; + class = read_pci_config(num,slot,func, + PCI_CLASS_REVISION); + if (class == 0xffffffff) + break; + + if ((class >> 16) != PCI_CLASS_BRIDGE_PCI) + continue; + + vendor = read_pci_config(num, slot, func, + PCI_VENDOR_ID); + vendor &= 0xffff; + + for (i = 0; early_qrk[i].f; i++) + if (early_qrk[i].vendor == vendor) { + early_qrk[i].f(); + return; + } + + type = read_pci_config_byte(num, slot, func, + PCI_HEADER_TYPE); + if (!(type & 0x80)) + break; + } + } + } +}
diff --git a/arch/x86_64/kernel/early_printk.c b/arch/x86_64/kernel/early_printk.c index 140051e..e22ecd5 100644 --- a/arch/x86_64/kernel/early_printk.c +++ b/arch/x86_64/kernel/early_printk.c
@@ -215,20 +215,16 @@ static int __initdata keep_early; -int __init setup_early_printk(char *opt) +static int __init setup_early_printk(char *buf) { - char *space; - char buf[256]; + if (!buf) + return 0; if (early_console_initialized) - return 1; + return 0; + early_console_initialized = 1; - strlcpy(buf,opt,sizeof(buf)); - space = strchr(buf, ' '); - if (space) - *space = 0; - - if (strstr(buf,"keep")) + if (!strcmp(buf,"keep")) keep_early = 1; if (!strncmp(buf, "serial", 6)) { @@ -248,11 +244,12 @@ early_console = &simnow_console; keep_early = 1; } - early_console_initialized = 1; register_console(early_console); return 0; } +early_param("earlyprintk", setup_early_printk); + void __init disable_early_printk(void) { if (!early_console_initialized || !early_console) @@ -266,4 +263,3 @@ } } -__setup("earlyprintk=", setup_early_printk);
diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S index aa8d893..2802524 100644 --- a/arch/x86_64/kernel/entry.S +++ b/arch/x86_64/kernel/entry.S
@@ -4,8 +4,6 @@ * Copyright (C) 1991, 1992 Linus Torvalds * Copyright (C) 2000, 2001, 2002 Andi Kleen SuSE Labs * Copyright (C) 2000 Pavel Machek <pavel@suse.cz> - * - * $Id$ */ /* @@ -22,15 +20,25 @@ * at the top of the kernel process stack. * - partial stack frame: partially saved registers upto R11. * - full stack frame: Like partial stack frame, but all register saved. - * - * TODO: - * - schedule it carefully for the final hardware. + * + * Some macro usage: + * - CFI macros are used to generate dwarf2 unwind information for better + * backtraces. They don't change any code. + * - SAVE_ALL/RESTORE_ALL - Save/restore all registers + * - SAVE_ARGS/RESTORE_ARGS - Save/restore registers that C functions modify. + * There are unfortunately lots of special cases where some registers + * not touched. The macro is a big mess that should be cleaned up. + * - SAVE_REST/RESTORE_REST - Handle the registers not saved by SAVE_ARGS. + * Gives a full stack frame. + * - ENTRY/END Define functions in the symbol table. + * - FIXUP_TOP_OF_STACK/RESTORE_TOP_OF_STACK - Fix up the hardware stack + * frame that is otherwise undefined after a SYSCALL + * - TRACE_IRQ_* - Trace hard interrupt state for lock debugging. + * - errorentry/paranoidentry/zeroentry - Define exception entry points. */ -#define ASSEMBLY 1 #include <linux/linkage.h> #include <asm/segment.h> -#include <asm/smp.h> #include <asm/cache.h> #include <asm/errno.h> #include <asm/dwarf2.h> @@ -115,6 +123,7 @@ .macro CFI_DEFAULT_STACK start=1 .if \start CFI_STARTPROC simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,SS+8 .else CFI_DEF_CFA_OFFSET SS+8 @@ -146,6 +155,10 @@ /* rdi: prev */ ENTRY(ret_from_fork) CFI_DEFAULT_STACK + push kernel_eflags(%rip) + CFI_ADJUST_CFA_OFFSET 4 + popf # reset kernel eflags + CFI_ADJUST_CFA_OFFSET -4 call schedule_tail GET_THREAD_INFO(%rcx) testl $(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT),threadinfo_flags(%rcx) @@ -199,6 +212,7 @@ ENTRY(system_call) CFI_STARTPROC simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,PDA_STACKOFFSET CFI_REGISTER rip,rcx /*CFI_REGISTER rflags,r11*/ @@ -316,6 +330,7 @@ */ ENTRY(int_ret_from_sys_call) CFI_STARTPROC simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,SS+8-ARGOFFSET /*CFI_REL_OFFSET ss,SS-ARGOFFSET*/ CFI_REL_OFFSET rsp,RSP-ARGOFFSET @@ -476,6 +491,7 @@ */ .macro _frame ref CFI_STARTPROC simple + CFI_SIGNAL_FRAME CFI_DEF_CFA rsp,SS+8-\ref /*CFI_REL_OFFSET ss,SS-\ref*/ CFI_REL_OFFSET rsp,RSP-\ref @@ -511,7 +527,12 @@ testl $3,CS(%rdi) je 1f swapgs -1: incl %gs:pda_irqcount # RED-PEN should check preempt count + /* irqcount is used to check if a CPU is already on an interrupt + stack or not. While this is essentially redundant with preempt_count + it is a little cheaper to use a separate counter in the PDA + (short of moving irq_enter into assembly, which would be too + much work) */ +1: incl %gs:pda_irqcount cmoveq %gs:pda_irqstackptr,%rsp push %rbp # backlink for old unwinder /* @@ -619,8 +640,7 @@ #ifdef CONFIG_PREEMPT /* Returning to kernel space. Check if we need preemption */ /* rcx: threadinfo. interrupts off. */ - .p2align -retint_kernel: +ENTRY(retint_kernel) cmpl $0,threadinfo_preempt_count(%rcx) jnz retint_restore_args bt $TIF_NEED_RESCHED,threadinfo_flags(%rcx) @@ -679,7 +699,6 @@ END(call_function_interrupt) #endif -#ifdef CONFIG_X86_LOCAL_APIC ENTRY(apic_timer_interrupt) apicinterrupt LOCAL_TIMER_VECTOR,smp_apic_timer_interrupt END(apic_timer_interrupt) @@ -691,7 +710,6 @@ ENTRY(spurious_interrupt) apicinterrupt SPURIOUS_APIC_VECTOR,smp_spurious_interrupt END(spurious_interrupt) -#endif /* * Exception entry points. @@ -768,7 +786,9 @@ testl $3,CS(%rsp) jnz paranoid_userspace\trace paranoid_swapgs\trace: + .if \trace TRACE_IRQS_IRETQ 0 + .endif swapgs paranoid_restore\trace: RESTORE_ALL 8 @@ -814,7 +834,7 @@ * Exception entry point. This expects an error code/orig_rax on the stack * and the exception handler in %rax. */ -ENTRY(error_entry) +KPROBE_ENTRY(error_entry) _frame RDI /* rdi slot contains rax, oldrax contains error code */ cld @@ -898,7 +918,7 @@ cmpq $gs_change,RIP(%rsp) je error_swapgs jmp error_sti -END(error_entry) +KPROBE_END(error_entry) /* Reload gs selector with exception handling */ /* edi: new selector */ @@ -1020,8 +1040,7 @@ KPROBE_ENTRY(page_fault) errorentry do_page_fault -END(page_fault) - .previous .text +KPROBE_END(page_fault) ENTRY(coprocessor_error) zeroentry do_coprocessor_error @@ -1042,8 +1061,7 @@ CFI_ADJUST_CFA_OFFSET 8 paranoidentry do_debug, DEBUG_STACK paranoidexit -END(debug) - .previous .text +KPROBE_END(debug) /* runs on exception stack */ KPROBE_ENTRY(nmi) @@ -1057,8 +1075,7 @@ jmp paranoid_exit1 CFI_ENDPROC #endif -END(nmi) - .previous .text +KPROBE_END(nmi) KPROBE_ENTRY(int3) INTR_FRAME @@ -1067,8 +1084,7 @@ paranoidentry do_int3, DEBUG_STACK jmp paranoid_exit1 CFI_ENDPROC -END(int3) - .previous .text +KPROBE_END(int3) ENTRY(overflow) zeroentry do_overflow @@ -1116,8 +1132,7 @@ KPROBE_ENTRY(general_protection) errorentry do_general_protection -END(general_protection) - .previous .text +KPROBE_END(general_protection) ENTRY(alignment_check) errorentry do_alignment_check
diff --git a/arch/x86_64/kernel/genapic_cluster.c b/arch/x86_64/kernel/genapic_cluster.c index 3020917..cdb90e6 100644 --- a/arch/x86_64/kernel/genapic_cluster.c +++ b/arch/x86_64/kernel/genapic_cluster.c
@@ -118,7 +118,6 @@ .name = "clustered", .int_delivery_mode = dest_Fixed, .int_dest_mode = (APIC_DEST_PHYSICAL != 0), - .int_delivery_dest = APIC_DEST_PHYSICAL | APIC_DM_FIXED, .target_cpus = cluster_target_cpus, .apic_id_registered = cluster_apic_id_registered, .init_apic_ldr = cluster_init_apic_ldr,
diff --git a/arch/x86_64/kernel/genapic_flat.c b/arch/x86_64/kernel/genapic_flat.c index eb86d37..50ad153 100644 --- a/arch/x86_64/kernel/genapic_flat.c +++ b/arch/x86_64/kernel/genapic_flat.c
@@ -49,8 +49,7 @@ unsigned long cfg; unsigned long flags; - local_save_flags(flags); - local_irq_disable(); + local_irq_save(flags); /* * Wait for idle. @@ -121,7 +120,6 @@ .name = "flat", .int_delivery_mode = dest_LowestPrio, .int_dest_mode = (APIC_DEST_LOGICAL != 0), - .int_delivery_dest = APIC_DEST_LOGICAL | APIC_DM_LOWEST, .target_cpus = flat_target_cpus, .apic_id_registered = flat_apic_id_registered, .init_apic_ldr = flat_init_apic_ldr, @@ -180,7 +178,6 @@ .name = "physical flat", .int_delivery_mode = dest_Fixed, .int_dest_mode = (APIC_DEST_PHYSICAL != 0), - .int_delivery_dest = APIC_DEST_PHYSICAL | APIC_DM_FIXED, .target_cpus = physflat_target_cpus, .apic_id_registered = flat_apic_id_registered, .init_apic_ldr = flat_init_apic_ldr,/*not needed, but shouldn't hurt*/
diff --git a/arch/x86_64/kernel/head.S b/arch/x86_64/kernel/head.S index c9739ca..1e6f808 100644 --- a/arch/x86_64/kernel/head.S +++ b/arch/x86_64/kernel/head.S
@@ -5,8 +5,6 @@ * Copyright (C) 2000 Pavel Machek <pavel@suse.cz> * Copyright (C) 2000 Karsten Keil <kkeil@suse.de> * Copyright (C) 2001,2002 Andi Kleen <ak@suse.de> - * - * $Id: head.S,v 1.49 2002/03/19 17:39:25 ak Exp $ */ @@ -187,12 +185,15 @@ /* Finally jump to run C code and to be on real kernel address * Since we are running on identity-mapped space we have to jump - * to the full 64bit address , this is only possible as indirect - * jump + * to the full 64bit address, this is only possible as indirect + * jump. In addition we need to ensure %cs is set so we make this + * a far return. */ movq initial_code(%rip),%rax - pushq $0 # fake return address - jmp *%rax + pushq $0 # fake return address to stop unwinder + pushq $__KERNEL_CS # set correct cs + pushq %rax # target address in negative space + lretq /* SMP bootup changes these two */ .align 8 @@ -371,7 +372,7 @@ .quad 0,0 /* TSS */ .quad 0,0 /* LDT */ .quad 0,0,0 /* three TLS descriptors */ - .quad 0 /* unused */ + .quad 0x0000f40000000000 /* node/CPU stored in limit */ gdt_end: /* asm/segment.h:GDT_ENTRIES must match this */ /* This should be a multiple of the cache line size */
diff --git a/arch/x86_64/kernel/head64.c b/arch/x86_64/kernel/head64.c index 36647ce..9561eb3 100644 --- a/arch/x86_64/kernel/head64.c +++ b/arch/x86_64/kernel/head64.c
@@ -45,38 +45,16 @@ new_data = *(int *) (x86_boot_params + NEW_CL_POINTER); if (!new_data) { if (OLD_CL_MAGIC != * (u16 *) OLD_CL_MAGIC_ADDR) { - printk("so old bootloader that it does not support commandline?!\n"); return; } new_data = OLD_CL_BASE_ADDR + * (u16 *) OLD_CL_OFFSET; - printk("old bootloader convention, maybe loadlin?\n"); } command_line = (char *) ((u64)(new_data)); memcpy(saved_command_line, command_line, COMMAND_LINE_SIZE); - printk("Bootdata ok (command line is %s)\n", saved_command_line); -} - -static void __init setup_boot_cpu_data(void) -{ - unsigned int dummy, eax; - - /* get vendor info */ - cpuid(0, (unsigned int *)&boot_cpu_data.cpuid_level, - (unsigned int *)&boot_cpu_data.x86_vendor_id[0], - (unsigned int *)&boot_cpu_data.x86_vendor_id[8], - (unsigned int *)&boot_cpu_data.x86_vendor_id[4]); - - /* get cpu type */ - cpuid(1, &eax, &dummy, &dummy, - (unsigned int *) &boot_cpu_data.x86_capability); - boot_cpu_data.x86 = (eax >> 8) & 0xf; - boot_cpu_data.x86_model = (eax >> 4) & 0xf; - boot_cpu_data.x86_mask = eax & 0xf; } void __init x86_64_start_kernel(char * real_mode_data) { - char *s; int i; for (i = 0; i < 256; i++) @@ -84,10 +62,7 @@ asm volatile("lidt %0" :: "m" (idt_descr)); clear_bss(); - /* - * This must be called really, really early: - */ - lockdep_init(); + early_printk("Kernel alive\n"); /* * switch to init_level4_pgt from boot_level4_pgt @@ -103,22 +78,5 @@ #ifdef CONFIG_SMP cpu_set(0, cpu_online_map); #endif - s = strstr(saved_command_line, "earlyprintk="); - if (s != NULL) - setup_early_printk(strchr(s, '=') + 1); -#ifdef CONFIG_NUMA - s = strstr(saved_command_line, "numa="); - if (s != NULL) - numa_setup(s+5); -#endif -#ifdef CONFIG_X86_IO_APIC - if (strstr(saved_command_line, "disableapic")) - disable_apic = 1; -#endif - /* You need early console to see that */ - if (__pa_symbol(&_end) >= KERNEL_TEXT_SIZE) - panic("Kernel too big for kernel mapping\n"); - - setup_boot_cpu_data(); start_kernel(); }
diff --git a/arch/x86_64/kernel/i8259.c b/arch/x86_64/kernel/i8259.c index 0434b1f..2dd51f3 100644 --- a/arch/x86_64/kernel/i8259.c +++ b/arch/x86_64/kernel/i8259.c
@@ -55,7 +55,6 @@ */ BUILD_16_IRQS(0x0) -#ifdef CONFIG_X86_LOCAL_APIC /* * The IO-APIC gives us many more interrupt sources. Most of these * are unused but an SMP system is supposed to have enough memory ... @@ -75,8 +74,6 @@ BUILD_15_IRQS(0xe) #endif -#endif - #undef BUILD_16_IRQS #undef BUILD_15_IRQS #undef BI @@ -100,7 +97,6 @@ void (*interrupt[NR_IRQS])(void) = { IRQLIST_16(0x0), -#ifdef CONFIG_X86_IO_APIC IRQLIST_16(0x1), IRQLIST_16(0x2), IRQLIST_16(0x3), IRQLIST_16(0x4), IRQLIST_16(0x5), IRQLIST_16(0x6), IRQLIST_16(0x7), IRQLIST_16(0x8), IRQLIST_16(0x9), IRQLIST_16(0xa), IRQLIST_16(0xb), @@ -110,7 +106,6 @@ , IRQLIST_15(0xe) #endif -#endif }; #undef IRQ @@ -128,6 +123,8 @@ DEFINE_SPINLOCK(i8259A_lock); +static int i8259A_auto_eoi; + static void end_8259A_irq (unsigned int irq) { if (irq > 256) { @@ -341,6 +338,8 @@ { unsigned long flags; + i8259A_auto_eoi = auto_eoi; + spin_lock_irqsave(&i8259A_lock, flags); outb(0xff, 0x21); /* mask all of 8259A-1 */ @@ -399,7 +398,7 @@ static int i8259A_resume(struct sys_device *dev) { - init_8259A(0); + init_8259A(i8259A_auto_eoi); restore_ELCR(irq_trigger); return 0; } @@ -453,9 +452,7 @@ { int i; -#ifdef CONFIG_X86_LOCAL_APIC init_bsp_APIC(); -#endif init_8259A(0); for (i = 0; i < NR_IRQS; i++) { @@ -581,14 +578,12 @@ set_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt); set_intr_gate(THRESHOLD_APIC_VECTOR, threshold_interrupt); -#ifdef CONFIG_X86_LOCAL_APIC /* self generated IPI for local APIC timer */ set_intr_gate(LOCAL_TIMER_VECTOR, apic_timer_interrupt); /* IPI vectors for APIC spurious and error interrupts */ set_intr_gate(SPURIOUS_APIC_VECTOR, spurious_interrupt); set_intr_gate(ERROR_APIC_VECTOR, error_interrupt); -#endif /* * Set the clock to HZ Hz, we already have a valid
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c index 924a4a3..0491019 100644 --- a/arch/x86_64/kernel/io_apic.c +++ b/arch/x86_64/kernel/io_apic.c
@@ -48,7 +48,7 @@ static int no_timer_check; -int disable_timer_pin_1 __initdata; +static int disable_timer_pin_1 __initdata; int timer_over_8254 __initdata = 0; @@ -111,6 +111,33 @@ FINAL; \ } +union entry_union { + struct { u32 w1, w2; }; + struct IO_APIC_route_entry entry; +}; + +static struct IO_APIC_route_entry ioapic_read_entry(int apic, int pin) +{ + union entry_union eu; + unsigned long flags; + spin_lock_irqsave(&ioapic_lock, flags); + eu.w1 = io_apic_read(apic, 0x10 + 2 * pin); + eu.w2 = io_apic_read(apic, 0x11 + 2 * pin); + spin_unlock_irqrestore(&ioapic_lock, flags); + return eu.entry; +} + +static void ioapic_write_entry(int apic, int pin, struct IO_APIC_route_entry e) +{ + unsigned long flags; + union entry_union eu; + eu.entry = e; + spin_lock_irqsave(&ioapic_lock, flags); + io_apic_write(apic, 0x10 + 2*pin, eu.w1); + io_apic_write(apic, 0x11 + 2*pin, eu.w2); + spin_unlock_irqrestore(&ioapic_lock, flags); +} + #ifdef CONFIG_SMP static void set_ioapic_affinity_irq(unsigned int irq, cpumask_t mask) { @@ -196,13 +223,9 @@ static void clear_IO_APIC_pin(unsigned int apic, unsigned int pin) { struct IO_APIC_route_entry entry; - unsigned long flags; /* Check delivery_mode to be sure we're not clearing an SMI pin */ - spin_lock_irqsave(&ioapic_lock, flags); - *(((int*)&entry) + 0) = io_apic_read(apic, 0x10 + 2 * pin); - *(((int*)&entry) + 1) = io_apic_read(apic, 0x11 + 2 * pin); - spin_unlock_irqrestore(&ioapic_lock, flags); + entry = ioapic_read_entry(apic, pin); if (entry.delivery_mode == dest_SMI) return; /* @@ -210,10 +233,7 @@ */ memset(&entry, 0, sizeof(entry)); entry.mask = 1; - spin_lock_irqsave(&ioapic_lock, flags); - io_apic_write(apic, 0x10 + 2 * pin, *(((int *)&entry) + 0)); - io_apic_write(apic, 0x11 + 2 * pin, *(((int *)&entry) + 1)); - spin_unlock_irqrestore(&ioapic_lock, flags); + ioapic_write_entry(apic, pin, entry); } static void clear_IO_APIC (void) @@ -225,14 +245,6 @@ clear_IO_APIC_pin(apic, pin); } -/* - * support for broken MP BIOSs, enables hand-redirection of PIRQ0-7 to - * specific CPU-side IRQs. - */ - -#define MAX_PIRQS 8 -static int pirq_entries [MAX_PIRQS]; -static int pirqs_enabled; int skip_ioapic_setup; int ioapic_force; @@ -241,18 +253,17 @@ static int __init disable_ioapic_setup(char *str) { skip_ioapic_setup = 1; - return 1; + return 0; } +early_param("noapic", disable_ioapic_setup); -static int __init enable_ioapic_setup(char *str) +/* Actually the next is obsolete, but keep it for paranoid reasons -AK */ +static int __init disable_timer_pin_setup(char *arg) { - ioapic_force = 1; - skip_ioapic_setup = 0; + disable_timer_pin_1 = 1; return 1; } - -__setup("noapic", disable_ioapic_setup); -__setup("apic", enable_ioapic_setup); +__setup("disable_timer_pin_1", disable_timer_pin_setup); static int __init setup_disable_8254_timer(char *s) { @@ -268,135 +279,6 @@ __setup("disable_8254_timer", setup_disable_8254_timer); __setup("enable_8254_timer", setup_enable_8254_timer); -#include <asm/pci-direct.h> -#include <linux/pci_ids.h> -#include <linux/pci.h> - - -#ifdef CONFIG_ACPI - -static int nvidia_hpet_detected __initdata; - -static int __init nvidia_hpet_check(unsigned long phys, unsigned long size) -{ - nvidia_hpet_detected = 1; - return 0; -} -#endif - -/* Temporary Hack. Nvidia and VIA boards currently only work with IO-APIC - off. Check for an Nvidia or VIA PCI bridge and turn it off. - Use pci direct infrastructure because this runs before the PCI subsystem. - - Can be overwritten with "apic" - - And another hack to disable the IOMMU on VIA chipsets. - - ... and others. Really should move this somewhere else. - - Kludge-O-Rama. */ -void __init check_ioapic(void) -{ - int num,slot,func; - /* Poor man's PCI discovery */ - for (num = 0; num < 32; num++) { - for (slot = 0; slot < 32; slot++) { - for (func = 0; func < 8; func++) { - u32 class; - u32 vendor; - u8 type; - class = read_pci_config(num,slot,func, - PCI_CLASS_REVISION); - if (class == 0xffffffff) - break; - - if ((class >> 16) != PCI_CLASS_BRIDGE_PCI) - continue; - - vendor = read_pci_config(num, slot, func, - PCI_VENDOR_ID); - vendor &= 0xffff; - switch (vendor) { - case PCI_VENDOR_ID_VIA: -#ifdef CONFIG_IOMMU - if ((end_pfn > MAX_DMA32_PFN || - force_iommu) && - !iommu_aperture_allowed) { - printk(KERN_INFO - "Looks like a VIA chipset. Disabling IOMMU. Override with \"iommu=allowed\"\n"); - iommu_aperture_disabled = 1; - } -#endif - return; - case PCI_VENDOR_ID_NVIDIA: -#ifdef CONFIG_ACPI - /* - * All timer overrides on Nvidia are - * wrong unless HPET is enabled. - */ - nvidia_hpet_detected = 0; - acpi_table_parse(ACPI_HPET, - nvidia_hpet_check); - if (nvidia_hpet_detected == 0) { - acpi_skip_timer_override = 1; - printk(KERN_INFO "Nvidia board " - "detected. Ignoring ACPI " - "timer override.\n"); - } -#endif - /* RED-PEN skip them on mptables too? */ - return; - - /* This should be actually default, but - for 2.6.16 let's do it for ATI only where - it's really needed. */ - case PCI_VENDOR_ID_ATI: - if (timer_over_8254 == 1) { - timer_over_8254 = 0; - printk(KERN_INFO - "ATI board detected. Disabling timer routing over 8254.\n"); - } - return; - } - - - /* No multi-function device? */ - type = read_pci_config_byte(num,slot,func, - PCI_HEADER_TYPE); - if (!(type & 0x80)) - break; - } - } - } -} - -static int __init ioapic_pirq_setup(char *str) -{ - int i, max; - int ints[MAX_PIRQS+1]; - - get_options(str, ARRAY_SIZE(ints), ints); - - for (i = 0; i < MAX_PIRQS; i++) - pirq_entries[i] = -1; - - pirqs_enabled = 1; - apic_printk(APIC_VERBOSE, "PIRQ redirection, working around broken MP-BIOS.\n"); - max = MAX_PIRQS; - if (ints[0] < MAX_PIRQS) - max = ints[0]; - - for (i = 0; i < max; i++) { - apic_printk(APIC_VERBOSE, "... PIRQ%d -> IRQ %d\n", i, ints[i+1]); - /* - * PIRQs are mapped upside down, usually. - */ - pirq_entries[MAX_PIRQS-i-1] = ints[i+1]; - } - return 1; -} - -__setup("pirq=", ioapic_pirq_setup); /* * Find the IRQ entry number of a certain pin. @@ -425,9 +307,7 @@ for (i = 0; i < mp_irq_entries; i++) { int lbus = mp_irqs[i].mpc_srcbus; - if ((mp_bus_id_to_type[lbus] == MP_BUS_ISA || - mp_bus_id_to_type[lbus] == MP_BUS_EISA || - mp_bus_id_to_type[lbus] == MP_BUS_MCA) && + if (test_bit(lbus, mp_bus_not_pci) && (mp_irqs[i].mpc_irqtype == type) && (mp_irqs[i].mpc_srcbusirq == irq)) @@ -443,9 +323,7 @@ for (i = 0; i < mp_irq_entries; i++) { int lbus = mp_irqs[i].mpc_srcbus; - if ((mp_bus_id_to_type[lbus] == MP_BUS_ISA || - mp_bus_id_to_type[lbus] == MP_BUS_EISA || - mp_bus_id_to_type[lbus] == MP_BUS_MCA) && + if (test_bit(lbus, mp_bus_not_pci) && (mp_irqs[i].mpc_irqtype == type) && (mp_irqs[i].mpc_srcbusirq == irq)) break; @@ -485,7 +363,7 @@ mp_irqs[i].mpc_dstapic == MP_APIC_ALL) break; - if ((mp_bus_id_to_type[lbus] == MP_BUS_PCI) && + if (!test_bit(lbus, mp_bus_not_pci) && !mp_irqs[i].mpc_irqtype && (bus == lbus) && (slot == ((mp_irqs[i].mpc_srcbusirq >> 2) & 0x1f))) { @@ -508,27 +386,6 @@ return best_guess; } -/* - * EISA Edge/Level control register, ELCR - */ -static int EISA_ELCR(unsigned int irq) -{ - if (irq < 16) { - unsigned int port = 0x4d0 + (irq >> 3); - return (inb(port) >> (irq & 7)) & 1; - } - apic_printk(APIC_VERBOSE, "Broken MPtable reports ISA irq %d\n", irq); - return 0; -} - -/* EISA interrupts are always polarity zero and can be edge or level - * trigger depending on the ELCR value. If an interrupt is listed as - * EISA conforming in the MP table, that means its trigger type must - * be read in from the ELCR */ - -#define default_EISA_trigger(idx) (EISA_ELCR(mp_irqs[idx].mpc_srcbusirq)) -#define default_EISA_polarity(idx) (0) - /* ISA interrupts are always polarity zero edge triggered, * when listed as conforming in the MP table. */ @@ -541,12 +398,6 @@ #define default_PCI_trigger(idx) (1) #define default_PCI_polarity(idx) (1) -/* MCA interrupts are always polarity zero level triggered, - * when listed as conforming in the MP table. */ - -#define default_MCA_trigger(idx) (1) -#define default_MCA_polarity(idx) (0) - static int __init MPBIOS_polarity(int idx) { int bus = mp_irqs[idx].mpc_srcbus; @@ -558,38 +409,11 @@ switch (mp_irqs[idx].mpc_irqflag & 3) { case 0: /* conforms, ie. bus-type dependent polarity */ - { - switch (mp_bus_id_to_type[bus]) - { - case MP_BUS_ISA: /* ISA pin */ - { - polarity = default_ISA_polarity(idx); - break; - } - case MP_BUS_EISA: /* EISA pin */ - { - polarity = default_EISA_polarity(idx); - break; - } - case MP_BUS_PCI: /* PCI pin */ - { - polarity = default_PCI_polarity(idx); - break; - } - case MP_BUS_MCA: /* MCA pin */ - { - polarity = default_MCA_polarity(idx); - break; - } - default: - { - printk(KERN_WARNING "broken BIOS!!\n"); - polarity = 1; - break; - } - } + if (test_bit(bus, mp_bus_not_pci)) + polarity = default_ISA_polarity(idx); + else + polarity = default_PCI_polarity(idx); break; - } case 1: /* high active */ { polarity = 0; @@ -627,38 +451,11 @@ switch ((mp_irqs[idx].mpc_irqflag>>2) & 3) { case 0: /* conforms, ie. bus-type dependent */ - { - switch (mp_bus_id_to_type[bus]) - { - case MP_BUS_ISA: /* ISA pin */ - { - trigger = default_ISA_trigger(idx); - break; - } - case MP_BUS_EISA: /* EISA pin */ - { - trigger = default_EISA_trigger(idx); - break; - } - case MP_BUS_PCI: /* PCI pin */ - { - trigger = default_PCI_trigger(idx); - break; - } - case MP_BUS_MCA: /* MCA pin */ - { - trigger = default_MCA_trigger(idx); - break; - } - default: - { - printk(KERN_WARNING "broken BIOS!!\n"); - trigger = 1; - break; - } - } + if (test_bit(bus, mp_bus_not_pci)) + trigger = default_ISA_trigger(idx); + else + trigger = default_PCI_trigger(idx); break; - } case 1: /* edge */ { trigger = 0; @@ -764,49 +561,17 @@ if (mp_irqs[idx].mpc_dstirq != pin) printk(KERN_ERR "broken BIOS or MPTABLE parser, ayiee!!\n"); - switch (mp_bus_id_to_type[bus]) - { - case MP_BUS_ISA: /* ISA pin */ - case MP_BUS_EISA: - case MP_BUS_MCA: - { - irq = mp_irqs[idx].mpc_srcbusirq; - break; - } - case MP_BUS_PCI: /* PCI pin */ - { - /* - * PCI IRQs are mapped in order - */ - i = irq = 0; - while (i < apic) - irq += nr_ioapic_registers[i++]; - irq += pin; - irq = gsi_irq_sharing(irq); - break; - } - default: - { - printk(KERN_ERR "unknown bus type %d.\n",bus); - irq = 0; - break; - } - } - BUG_ON(irq >= NR_IRQS); - - /* - * PCI IRQ command line redirection. Yes, limits are hardcoded. - */ - if ((pin >= 16) && (pin <= 23)) { - if (pirq_entries[pin-16] != -1) { - if (!pirq_entries[pin-16]) { - apic_printk(APIC_VERBOSE, "disabling PIRQ%d\n", pin-16); - } else { - irq = pirq_entries[pin-16]; - apic_printk(APIC_VERBOSE, "using PIRQ%d -> IRQ %d\n", - pin-16, irq); - } - } + if (test_bit(bus, mp_bus_not_pci)) { + irq = mp_irqs[idx].mpc_srcbusirq; + } else { + /* + * PCI IRQs are mapped in order + */ + i = irq = 0; + while (i < apic) + irq += nr_ioapic_registers[i++]; + irq += pin; + irq = gsi_irq_sharing(irq); } BUG_ON(irq >= NR_IRQS); return irq; @@ -943,9 +708,9 @@ if (!apic && (irq < 16)) disable_8259A_irq(irq); } + ioapic_write_entry(apic, pin, entry); + spin_lock_irqsave(&ioapic_lock, flags); - io_apic_write(apic, 0x11+2*pin, *(((int *)&entry)+1)); - io_apic_write(apic, 0x10+2*pin, *(((int *)&entry)+0)); set_native_irq_info(irq, TARGET_CPUS); spin_unlock_irqrestore(&ioapic_lock, flags); } @@ -1083,10 +848,7 @@ for (i = 0; i <= reg_01.bits.entries; i++) { struct IO_APIC_route_entry entry; - spin_lock_irqsave(&ioapic_lock, flags); - *(((int *)&entry)+0) = io_apic_read(apic, 0x10+i*2); - *(((int *)&entry)+1) = io_apic_read(apic, 0x11+i*2); - spin_unlock_irqrestore(&ioapic_lock, flags); + entry = ioapic_read_entry(apic, i); printk(KERN_DEBUG " %02x %03X %02X ", i, @@ -1281,9 +1043,6 @@ irq_2_pin[i].pin = -1; irq_2_pin[i].next = 0; } - if (!pirqs_enabled) - for (i = 0; i < MAX_PIRQS; i++) - pirq_entries[i] = -1; /* * The number of IO-APIC IRQ registers (== #pins): @@ -1299,11 +1058,7 @@ /* See if any of the pins is in ExtINT mode */ for (pin = 0; pin < nr_ioapic_registers[apic]; pin++) { struct IO_APIC_route_entry entry; - spin_lock_irqsave(&ioapic_lock, flags); - *(((int *)&entry) + 0) = io_apic_read(apic, 0x10 + 2 * pin); - *(((int *)&entry) + 1) = io_apic_read(apic, 0x11 + 2 * pin); - spin_unlock_irqrestore(&ioapic_lock, flags); - + entry = ioapic_read_entry(apic, pin); /* If the interrupt line is enabled and in ExtInt mode * I have found the pin where the i8259 is connected. @@ -1355,7 +1110,6 @@ */ if (ioapic_i8259.pin != -1) { struct IO_APIC_route_entry entry; - unsigned long flags; memset(&entry, 0, sizeof(entry)); entry.mask = 0; /* Enabled */ @@ -1372,84 +1126,13 @@ /* * Add it to the IO-APIC irq-routing table: */ - spin_lock_irqsave(&ioapic_lock, flags); - io_apic_write(ioapic_i8259.apic, 0x11+2*ioapic_i8259.pin, - *(((int *)&entry)+1)); - io_apic_write(ioapic_i8259.apic, 0x10+2*ioapic_i8259.pin, - *(((int *)&entry)+0)); - spin_unlock_irqrestore(&ioapic_lock, flags); + ioapic_write_entry(ioapic_i8259.apic, ioapic_i8259.pin, entry); } disconnect_bsp_APIC(ioapic_i8259.pin != -1); } /* - * function to set the IO-APIC physical IDs based on the - * values stored in the MPC table. - * - * by Matt Domsch <Matt_Domsch@dell.com> Tue Dec 21 12:25:05 CST 1999 - */ - -static void __init setup_ioapic_ids_from_mpc (void) -{ - union IO_APIC_reg_00 reg_00; - int apic; - int i; - unsigned char old_id; - unsigned long flags; - - /* - * Set the IOAPIC ID to the value stored in the MPC table. - */ - for (apic = 0; apic < nr_ioapics; apic++) { - - /* Read the register 0 value */ - spin_lock_irqsave(&ioapic_lock, flags); - reg_00.raw = io_apic_read(apic, 0); - spin_unlock_irqrestore(&ioapic_lock, flags); - - old_id = mp_ioapics[apic].mpc_apicid; - - - printk(KERN_INFO "Using IO-APIC %d\n", mp_ioapics[apic].mpc_apicid); - - - /* - * We need to adjust the IRQ routing table - * if the ID changed. - */ - if (old_id != mp_ioapics[apic].mpc_apicid) - for (i = 0; i < mp_irq_entries; i++) - if (mp_irqs[i].mpc_dstapic == old_id) - mp_irqs[i].mpc_dstapic - = mp_ioapics[apic].mpc_apicid; - - /* - * Read the right value from the MPC table and - * write it into the ID register. - */ - apic_printk(APIC_VERBOSE,KERN_INFO "...changing IO-APIC physical APIC ID to %d ...", - mp_ioapics[apic].mpc_apicid); - - reg_00.bits.ID = mp_ioapics[apic].mpc_apicid; - spin_lock_irqsave(&ioapic_lock, flags); - io_apic_write(apic, 0, reg_00.raw); - spin_unlock_irqrestore(&ioapic_lock, flags); - - /* - * Sanity check - */ - spin_lock_irqsave(&ioapic_lock, flags); - reg_00.raw = io_apic_read(apic, 0); - spin_unlock_irqrestore(&ioapic_lock, flags); - if (reg_00.bits.ID != mp_ioapics[apic].mpc_apicid) - printk("could not set ID!\n"); - else - apic_printk(APIC_VERBOSE," ok.\n"); - } -} - -/* * There is a nasty bug in some older SMP boards, their mptable lies * about the timer IRQ. We do the following to work around the situation: * @@ -1964,11 +1647,6 @@ apic_printk(APIC_VERBOSE, "ENABLING IO-APIC IRQs\n"); - /* - * Set up the IO-APIC IRQ routing table. - */ - if (!acpi_ioapic) - setup_ioapic_ids_from_mpc(); sync_Arb_IDs(); setup_IO_APIC_irqs(); init_IO_APIC_traps(); @@ -1987,17 +1665,12 @@ { struct IO_APIC_route_entry *entry; struct sysfs_ioapic_data *data; - unsigned long flags; int i; data = container_of(dev, struct sysfs_ioapic_data, dev); entry = data->entry; - spin_lock_irqsave(&ioapic_lock, flags); - for (i = 0; i < nr_ioapic_registers[dev->id]; i ++, entry ++ ) { - *(((int *)entry) + 1) = io_apic_read(dev->id, 0x11 + 2 * i); - *(((int *)entry) + 0) = io_apic_read(dev->id, 0x10 + 2 * i); - } - spin_unlock_irqrestore(&ioapic_lock, flags); + for (i = 0; i < nr_ioapic_registers[dev->id]; i ++, entry ++ ) + *entry = ioapic_read_entry(dev->id, i); return 0; } @@ -2019,11 +1692,9 @@ reg_00.bits.ID = mp_ioapics[dev->id].mpc_apicid; io_apic_write(dev->id, 0, reg_00.raw); } - for (i = 0; i < nr_ioapic_registers[dev->id]; i ++, entry ++ ) { - io_apic_write(dev->id, 0x11+2*i, *(((int *)entry)+1)); - io_apic_write(dev->id, 0x10+2*i, *(((int *)entry)+0)); - } spin_unlock_irqrestore(&ioapic_lock, flags); + for (i = 0; i < nr_ioapic_registers[dev->id]; i++) + ioapic_write_entry(dev->id, i, entry[i]); return 0; } @@ -2077,19 +1748,6 @@ #define IO_APIC_MAX_ID 0xFE -int __init io_apic_get_version (int ioapic) -{ - union IO_APIC_reg_01 reg_01; - unsigned long flags; - - spin_lock_irqsave(&ioapic_lock, flags); - reg_01.raw = io_apic_read(ioapic, 1); - spin_unlock_irqrestore(&ioapic_lock, flags); - - return reg_01.bits.version; -} - - int __init io_apic_get_redir_entries (int ioapic) { union IO_APIC_reg_01 reg_01; @@ -2148,10 +1806,10 @@ if (!ioapic && (irq < 16)) disable_8259A_irq(irq); + ioapic_write_entry(ioapic, pin, entry); + spin_lock_irqsave(&ioapic_lock, flags); - io_apic_write(ioapic, 0x11+2*pin, *(((int *)&entry)+1)); - io_apic_write(ioapic, 0x10+2*pin, *(((int *)&entry)+0)); - set_native_irq_info(use_pci_vector() ? entry.vector : irq, TARGET_CPUS); + set_native_irq_info(use_pci_vector() ? entry.vector : irq, TARGET_CPUS); spin_unlock_irqrestore(&ioapic_lock, flags); return 0;
diff --git a/arch/x86_64/kernel/ioport.c b/arch/x86_64/kernel/ioport.c index b816149..fe063d3 100644 --- a/arch/x86_64/kernel/ioport.c +++ b/arch/x86_64/kernel/ioport.c
@@ -56,6 +56,7 @@ memset(bitmap, 0xff, IO_BITMAP_BYTES); t->io_bitmap_ptr = bitmap; + set_thread_flag(TIF_IO_BITMAP); } /*
diff --git a/arch/x86_64/kernel/irq.c b/arch/x86_64/kernel/irq.c index 5221a53..b3677e6 100644 --- a/arch/x86_64/kernel/irq.c +++ b/arch/x86_64/kernel/irq.c
@@ -20,11 +20,6 @@ #include <asm/idle.h> atomic_t irq_err_count; -#ifdef CONFIG_X86_IO_APIC -#ifdef APIC_MISMATCH_DEBUG -atomic_t irq_mis_count; -#endif -#endif #ifdef CONFIG_DEBUG_STACKOVERFLOW /* @@ -92,18 +87,11 @@ for_each_online_cpu(j) seq_printf(p, "%10u ", cpu_pda(j)->__nmi_count); seq_putc(p, '\n'); -#ifdef CONFIG_X86_LOCAL_APIC seq_printf(p, "LOC: "); for_each_online_cpu(j) seq_printf(p, "%10u ", cpu_pda(j)->apic_timer_irqs); seq_putc(p, '\n'); -#endif seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count)); -#ifdef CONFIG_X86_IO_APIC -#ifdef APIC_MISMATCH_DEBUG - seq_printf(p, "MIS: %10u\n", atomic_read(&irq_mis_count)); -#endif -#endif } return 0; }
diff --git a/arch/x86_64/kernel/machine_kexec.c b/arch/x86_64/kernel/machine_kexec.c index 106076b..0497e3b 100644 --- a/arch/x86_64/kernel/machine_kexec.c +++ b/arch/x86_64/kernel/machine_kexec.c
@@ -15,6 +15,15 @@ #include <asm/mmu_context.h> #include <asm/io.h> +#define PAGE_ALIGNED __attribute__ ((__aligned__(PAGE_SIZE))) +static u64 kexec_pgd[512] PAGE_ALIGNED; +static u64 kexec_pud0[512] PAGE_ALIGNED; +static u64 kexec_pmd0[512] PAGE_ALIGNED; +static u64 kexec_pte0[512] PAGE_ALIGNED; +static u64 kexec_pud1[512] PAGE_ALIGNED; +static u64 kexec_pmd1[512] PAGE_ALIGNED; +static u64 kexec_pte1[512] PAGE_ALIGNED; + static void init_level2_page(pmd_t *level2p, unsigned long addr) { unsigned long end_addr; @@ -144,32 +153,19 @@ ); } -typedef NORET_TYPE void (*relocate_new_kernel_t)(unsigned long indirection_page, - unsigned long control_code_buffer, - unsigned long start_address, - unsigned long pgtable) ATTRIB_NORET; - -extern const unsigned char relocate_new_kernel[]; -extern const unsigned long relocate_new_kernel_size; - int machine_kexec_prepare(struct kimage *image) { - unsigned long start_pgtable, control_code_buffer; + unsigned long start_pgtable; int result; /* Calculate the offsets */ start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT; - control_code_buffer = start_pgtable + PAGE_SIZE; /* Setup the identity mapped 64bit page table */ result = init_pgtable(image, start_pgtable); if (result) return result; - /* Place the code in the reboot code buffer */ - memcpy(__va(control_code_buffer), relocate_new_kernel, - relocate_new_kernel_size); - return 0; } @@ -184,28 +180,34 @@ */ NORET_TYPE void machine_kexec(struct kimage *image) { - unsigned long page_list; - unsigned long control_code_buffer; - unsigned long start_pgtable; - relocate_new_kernel_t rnk; + unsigned long page_list[PAGES_NR]; + void *control_page; /* Interrupts aren't acceptable while we reboot */ local_irq_disable(); - /* Calculate the offsets */ - page_list = image->head; - start_pgtable = page_to_pfn(image->control_code_page) << PAGE_SHIFT; - control_code_buffer = start_pgtable + PAGE_SIZE; + control_page = page_address(image->control_code_page) + PAGE_SIZE; + memcpy(control_page, relocate_kernel, PAGE_SIZE); - /* Set the low half of the page table to my identity mapped - * page table for kexec. Leave the high half pointing at the - * kernel pages. Don't bother to flush the global pages - * as that will happen when I fully switch to my identity mapped - * page table anyway. - */ - memcpy(__va(read_cr3()), __va(start_pgtable), PAGE_SIZE/2); - __flush_tlb(); + page_list[PA_CONTROL_PAGE] = __pa(control_page); + page_list[VA_CONTROL_PAGE] = (unsigned long)relocate_kernel; + page_list[PA_PGD] = __pa(kexec_pgd); + page_list[VA_PGD] = (unsigned long)kexec_pgd; + page_list[PA_PUD_0] = __pa(kexec_pud0); + page_list[VA_PUD_0] = (unsigned long)kexec_pud0; + page_list[PA_PMD_0] = __pa(kexec_pmd0); + page_list[VA_PMD_0] = (unsigned long)kexec_pmd0; + page_list[PA_PTE_0] = __pa(kexec_pte0); + page_list[VA_PTE_0] = (unsigned long)kexec_pte0; + page_list[PA_PUD_1] = __pa(kexec_pud1); + page_list[VA_PUD_1] = (unsigned long)kexec_pud1; + page_list[PA_PMD_1] = __pa(kexec_pmd1); + page_list[VA_PMD_1] = (unsigned long)kexec_pmd1; + page_list[PA_PTE_1] = __pa(kexec_pte1); + page_list[VA_PTE_1] = (unsigned long)kexec_pte1; + page_list[PA_TABLE_PAGE] = + (unsigned long)__pa(page_address(image->control_code_page)); /* The segment registers are funny things, they have both a * visible and an invisible part. Whenever the visible part is @@ -222,7 +224,36 @@ */ set_gdt(phys_to_virt(0),0); set_idt(phys_to_virt(0),0); + /* now call it */ - rnk = (relocate_new_kernel_t) control_code_buffer; - (*rnk)(page_list, control_code_buffer, image->start, start_pgtable); + relocate_kernel((unsigned long)image->head, (unsigned long)page_list, + image->start); } + +/* crashkernel=size@addr specifies the location to reserve for + * a crash kernel. By reserving this memory we guarantee + * that linux never set's it up as a DMA target. + * Useful for holding code to do something appropriate + * after a kernel panic. + */ +static int __init setup_crashkernel(char *arg) +{ + unsigned long size, base; + char *p; + if (!arg) + return -EINVAL; + size = memparse(arg, &p); + if (arg == p) + return -EINVAL; + if (*p == '@') { + base = memparse(p+1, &p); + /* FIXME: Do I want a sanity check to validate the + * memory range? Yes you do, but it's too early for + * e820 -AK */ + crashk_res.start = base; + crashk_res.end = base + size - 1; + } + return 0; +} +early_param("crashkernel", setup_crashkernel); +
diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c index 4e017fb..bbea888 100644 --- a/arch/x86_64/kernel/mce.c +++ b/arch/x86_64/kernel/mce.c
@@ -182,7 +182,7 @@ goto out2; memset(&m, 0, sizeof(struct mce)); - m.cpu = safe_smp_processor_id(); + m.cpu = smp_processor_id(); rdmsrl(MSR_IA32_MCG_STATUS, m.mcgstatus); if (!(m.mcgstatus & MCG_STATUS_RIPV)) kill_it = 1; @@ -274,6 +274,33 @@ atomic_dec(&mce_entry); } +#ifdef CONFIG_X86_MCE_INTEL +/*** + * mce_log_therm_throt_event - Logs the thermal throttling event to mcelog + * @cpu: The CPU on which the event occured. + * @status: Event status information + * + * This function should be called by the thermal interrupt after the + * event has been processed and the decision was made to log the event + * further. + * + * The status parameter will be saved to the 'status' field of 'struct mce' + * and historically has been the register value of the + * MSR_IA32_THERMAL_STATUS (Intel) msr. + */ +void mce_log_therm_throt_event(unsigned int cpu, __u64 status) +{ + struct mce m; + + memset(&m, 0, sizeof(m)); + m.cpu = cpu; + m.bank = MCE_THERMAL_BANK; + m.status = status; + rdtscll(m.tsc); + mce_log(&m); +} +#endif /* CONFIG_X86_MCE_INTEL */ + /* * Periodic polling timer for "silent" machine check errors. */
diff --git a/arch/x86_64/kernel/mce_intel.c b/arch/x86_64/kernel/mce_intel.c index 8f533d2..6551505 100644 --- a/arch/x86_64/kernel/mce_intel.c +++ b/arch/x86_64/kernel/mce_intel.c
@@ -11,36 +11,21 @@ #include <asm/mce.h> #include <asm/hw_irq.h> #include <asm/idle.h> - -static DEFINE_PER_CPU(unsigned long, next_check); +#include <asm/therm_throt.h> asmlinkage void smp_thermal_interrupt(void) { - struct mce m; + __u64 msr_val; ack_APIC_irq(); exit_idle(); irq_enter(); - if (time_before(jiffies, __get_cpu_var(next_check))) - goto done; - __get_cpu_var(next_check) = jiffies + HZ*300; - memset(&m, 0, sizeof(m)); - m.cpu = smp_processor_id(); - m.bank = MCE_THERMAL_BANK; - rdtscll(m.tsc); - rdmsrl(MSR_IA32_THERM_STATUS, m.status); - if (m.status & 0x1) { - printk(KERN_EMERG - "CPU%d: Temperature above threshold, cpu clock throttled\n", m.cpu); - add_taint(TAINT_MACHINE_CHECK); - } else { - printk(KERN_EMERG "CPU%d: Temperature/speed normal\n", m.cpu); - } + rdmsrl(MSR_IA32_THERM_STATUS, msr_val); + if (therm_throt_process(msr_val & 1)) + mce_log_therm_throt_event(smp_processor_id(), msr_val); - mce_log(&m); -done: irq_exit(); } @@ -92,6 +77,9 @@ apic_write(APIC_LVTTHMR, l & ~APIC_LVT_MASKED); printk(KERN_INFO "CPU%d: Thermal monitoring enabled (%s)\n", cpu, tm2 ? "TM2" : "TM1"); + + /* enable thermal throttle processing */ + atomic_set(&therm_throt_en, 1); return; }
diff --git a/arch/x86_64/kernel/mpparse.c b/arch/x86_64/kernel/mpparse.c index a1ab419..20e88f4 100644 --- a/arch/x86_64/kernel/mpparse.c +++ b/arch/x86_64/kernel/mpparse.c
@@ -41,8 +41,7 @@ * Various Linux-internal data structures created from the * MP-table. */ -unsigned char apic_version [MAX_APICS]; -unsigned char mp_bus_id_to_type [MAX_MP_BUSSES] = { [0 ... MAX_MP_BUSSES-1] = -1 }; +DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES); int mp_bus_id_to_pci_bus [MAX_MP_BUSSES] = { [0 ... MAX_MP_BUSSES-1] = -1 }; static int mp_current_pci_id = 0; @@ -56,7 +55,6 @@ int mp_irq_entries; int nr_ioapics; -int pic_mode; unsigned long mp_lapic_addr = 0; @@ -71,19 +69,6 @@ /* Bitmask of physically existing CPUs */ physid_mask_t phys_cpu_present_map = PHYSID_MASK_NONE; -/* ACPI MADT entry parsing functions */ -#ifdef CONFIG_ACPI -extern struct acpi_boot_flags acpi_boot; -#ifdef CONFIG_X86_LOCAL_APIC -extern int acpi_parse_lapic (acpi_table_entry_header *header); -extern int acpi_parse_lapic_addr_ovr (acpi_table_entry_header *header); -extern int acpi_parse_lapic_nmi (acpi_table_entry_header *header); -#endif /*CONFIG_X86_LOCAL_APIC*/ -#ifdef CONFIG_X86_IO_APIC -extern int acpi_parse_ioapic (acpi_table_entry_header *header); -#endif /*CONFIG_X86_IO_APIC*/ -#endif /*CONFIG_ACPI*/ - u8 bios_cpu_apicid[NR_CPUS] = { [0 ... NR_CPUS-1] = BAD_APICID }; @@ -108,24 +93,20 @@ static void __cpuinit MP_processor_info (struct mpc_config_processor *m) { int cpu; - unsigned char ver; cpumask_t tmp_map; + char *bootup_cpu = ""; if (!(m->mpc_cpuflag & CPU_ENABLED)) { disabled_cpus++; return; } - - printk(KERN_INFO "Processor #%d %d:%d APIC version %d\n", - m->mpc_apicid, - (m->mpc_cpufeature & CPU_FAMILY_MASK)>>8, - (m->mpc_cpufeature & CPU_MODEL_MASK)>>4, - m->mpc_apicver); - if (m->mpc_cpuflag & CPU_BOOTPROCESSOR) { - Dprintk(" Bootup CPU\n"); + bootup_cpu = " (Bootup-CPU)"; boot_cpu_id = m->mpc_apicid; } + + printk(KERN_INFO "Processor #%d%s\n", m->mpc_apicid, bootup_cpu); + if (num_processors >= NR_CPUS) { printk(KERN_WARNING "WARNING: NR_CPUS limit of %i reached." " Processor ignored.\n", NR_CPUS); @@ -136,24 +117,7 @@ cpus_complement(tmp_map, cpu_present_map); cpu = first_cpu(tmp_map); -#if MAX_APICS < 255 - if ((int)m->mpc_apicid > MAX_APICS) { - printk(KERN_ERR "Processor #%d INVALID. (Max ID: %d).\n", - m->mpc_apicid, MAX_APICS); - return; - } -#endif - ver = m->mpc_apicver; - physid_set(m->mpc_apicid, phys_cpu_present_map); - /* - * Validate version - */ - if (ver == 0x0) { - printk(KERN_ERR "BIOS bug, APIC version is 0 for CPU#%d! fixing up to 0x10. (tell your hw vendor)\n", m->mpc_apicid); - ver = 0x10; - } - apic_version[m->mpc_apicid] = ver; if (m->mpc_cpuflag & CPU_BOOTPROCESSOR) { /* * bios_cpu_apicid is required to have processors listed @@ -178,15 +142,11 @@ Dprintk("Bus #%d is %s\n", m->mpc_busid, str); if (strncmp(str, "ISA", 3) == 0) { - mp_bus_id_to_type[m->mpc_busid] = MP_BUS_ISA; - } else if (strncmp(str, "EISA", 4) == 0) { - mp_bus_id_to_type[m->mpc_busid] = MP_BUS_EISA; + set_bit(m->mpc_busid, mp_bus_not_pci); } else if (strncmp(str, "PCI", 3) == 0) { - mp_bus_id_to_type[m->mpc_busid] = MP_BUS_PCI; + clear_bit(m->mpc_busid, mp_bus_not_pci); mp_bus_id_to_pci_bus[m->mpc_busid] = mp_current_pci_id; mp_current_pci_id++; - } else if (strncmp(str, "MCA", 3) == 0) { - mp_bus_id_to_type[m->mpc_busid] = MP_BUS_MCA; } else { printk(KERN_ERR "Unknown bustype %s\n", str); } @@ -197,8 +157,8 @@ if (!(m->mpc_flags & MPC_APIC_USABLE)) return; - printk("I/O APIC #%d Version %d at 0x%X.\n", - m->mpc_apicid, m->mpc_apicver, m->mpc_apicaddr); + printk("I/O APIC #%d at 0x%X.\n", + m->mpc_apicid, m->mpc_apicaddr); if (nr_ioapics >= MAX_IO_APICS) { printk(KERN_ERR "Max # of I/O APICs (%d) exceeded (found %d).\n", MAX_IO_APICS, nr_ioapics); @@ -232,19 +192,6 @@ m->mpc_irqtype, m->mpc_irqflag & 3, (m->mpc_irqflag >> 2) &3, m->mpc_srcbusid, m->mpc_srcbusirq, m->mpc_destapic, m->mpc_destapiclint); - /* - * Well it seems all SMP boards in existence - * use ExtINT/LVT1 == LINT0 and - * NMI/LVT2 == LINT1 - the following check - * will show us if this assumptions is false. - * Until then we do not have to add baggage. - */ - if ((m->mpc_irqtype == mp_ExtINT) && - (m->mpc_destapiclint != 0)) - BUG(); - if ((m->mpc_irqtype == mp_NMI) && - (m->mpc_destapiclint != 1)) - BUG(); } /* @@ -258,7 +205,7 @@ unsigned char *mpt=((unsigned char *)mpc)+count; if (memcmp(mpc->mpc_signature,MPC_SIGNATURE,4)) { - printk("SMP mptable: bad signature [%c%c%c%c]!\n", + printk("MPTABLE: bad signature [%c%c%c%c]!\n", mpc->mpc_signature[0], mpc->mpc_signature[1], mpc->mpc_signature[2], @@ -266,31 +213,31 @@ return 0; } if (mpf_checksum((unsigned char *)mpc,mpc->mpc_length)) { - printk("SMP mptable: checksum error!\n"); + printk("MPTABLE: checksum error!\n"); return 0; } if (mpc->mpc_spec!=0x01 && mpc->mpc_spec!=0x04) { - printk(KERN_ERR "SMP mptable: bad table version (%d)!!\n", + printk(KERN_ERR "MPTABLE: bad table version (%d)!!\n", mpc->mpc_spec); return 0; } if (!mpc->mpc_lapic) { - printk(KERN_ERR "SMP mptable: null local APIC address!\n"); + printk(KERN_ERR "MPTABLE: null local APIC address!\n"); return 0; } memcpy(str,mpc->mpc_oem,8); - str[8]=0; - printk(KERN_INFO "OEM ID: %s ",str); + str[8] = 0; + printk(KERN_INFO "MPTABLE: OEM ID: %s ",str); memcpy(str,mpc->mpc_productid,12); - str[12]=0; - printk("Product ID: %s ",str); + str[12] = 0; + printk("MPTABLE: Product ID: %s ",str); - printk("APIC at: 0x%X\n",mpc->mpc_lapic); + printk("MPTABLE: APIC at: 0x%X\n",mpc->mpc_lapic); /* save the local APIC address, it might be non-default */ if (!acpi_lapic) - mp_lapic_addr = mpc->mpc_lapic; + mp_lapic_addr = mpc->mpc_lapic; /* * Now process the configuration blocks. @@ -302,7 +249,7 @@ struct mpc_config_processor *m= (struct mpc_config_processor *)mpt; if (!acpi_lapic) - MP_processor_info(m); + MP_processor_info(m); mpt += sizeof(*m); count += sizeof(*m); break; @@ -321,8 +268,8 @@ struct mpc_config_ioapic *m= (struct mpc_config_ioapic *)mpt; MP_ioapic_info(m); - mpt+=sizeof(*m); - count+=sizeof(*m); + mpt += sizeof(*m); + count += sizeof(*m); break; } case MP_INTSRC: @@ -331,8 +278,8 @@ (struct mpc_config_intsrc *)mpt; MP_intsrc_info(m); - mpt+=sizeof(*m); - count+=sizeof(*m); + mpt += sizeof(*m); + count += sizeof(*m); break; } case MP_LINTSRC: @@ -340,15 +287,15 @@ struct mpc_config_lintsrc *m= (struct mpc_config_lintsrc *)mpt; MP_lintsrc_info(m); - mpt+=sizeof(*m); - count+=sizeof(*m); + mpt += sizeof(*m); + count += sizeof(*m); break; } } } clustered_apic_check(); if (!num_processors) - printk(KERN_ERR "SMP mptable: no processors registered!\n"); + printk(KERN_ERR "MPTABLE: no processors registered!\n"); return num_processors; } @@ -444,13 +391,10 @@ * 2 CPUs, numbered 0 & 1. */ processor.mpc_type = MP_PROCESSOR; - /* Either an integrated APIC or a discrete 82489DX. */ - processor.mpc_apicver = mpc_default_type > 4 ? 0x10 : 0x01; + processor.mpc_apicver = 0; processor.mpc_cpuflag = CPU_ENABLED; - processor.mpc_cpufeature = (boot_cpu_data.x86 << 8) | - (boot_cpu_data.x86_model << 4) | - boot_cpu_data.x86_mask; - processor.mpc_featureflag = boot_cpu_data.x86_capability[0]; + processor.mpc_cpufeature = 0; + processor.mpc_featureflag = 0; processor.mpc_reserved[0] = 0; processor.mpc_reserved[1] = 0; for (i = 0; i < 2; i++) { @@ -469,14 +413,6 @@ case 5: memcpy(bus.mpc_bustype, "ISA ", 6); break; - case 2: - case 6: - case 3: - memcpy(bus.mpc_bustype, "EISA ", 6); - break; - case 4: - case 7: - memcpy(bus.mpc_bustype, "MCA ", 6); } MP_bus_info(&bus); if (mpc_default_type > 4) { @@ -487,7 +423,7 @@ ioapic.mpc_type = MP_IOAPIC; ioapic.mpc_apicid = 2; - ioapic.mpc_apicver = mpc_default_type > 4 ? 0x10 : 0x01; + ioapic.mpc_apicver = 0; ioapic.mpc_flags = MPC_APIC_USABLE; ioapic.mpc_apicaddr = 0xFEC00000; MP_ioapic_info(&ioapic); @@ -530,13 +466,6 @@ printk(KERN_INFO "Using ACPI for processor (LAPIC) configuration information\n"); printk("Intel MultiProcessor Specification v1.%d\n", mpf->mpf_specification); - if (mpf->mpf_feature2 & (1<<7)) { - printk(KERN_INFO " IMCR and PIC compatibility mode.\n"); - pic_mode = 1; - } else { - printk(KERN_INFO " Virtual Wire compatibility mode.\n"); - pic_mode = 0; - } /* * Now see if we need to read further. @@ -616,7 +545,7 @@ return 0; } -void __init find_intel_smp (void) +void __init find_smp_config(void) { unsigned int address; @@ -633,9 +562,7 @@ smp_scan_config(0xF0000,0x10000)) return; /* - * If it is an SMP machine we should know now, unless the - * configuration is in an EISA/MCA bus machine with an - * extended bios data area. + * If it is an SMP machine we should know now. * * there is a real-mode segmented pointer pointing to the * 4K EBDA area at 0x40E, calculate and scan it here. @@ -656,69 +583,41 @@ printk(KERN_INFO "No mptable found.\n"); } -/* - * - Intel MP Configuration Table - */ -void __init find_smp_config (void) -{ -#ifdef CONFIG_X86_LOCAL_APIC - find_intel_smp(); -#endif -} - - /* -------------------------------------------------------------------------- ACPI-based MP Configuration -------------------------------------------------------------------------- */ #ifdef CONFIG_ACPI -void __init mp_register_lapic_address ( - u64 address) +void __init mp_register_lapic_address(u64 address) { mp_lapic_addr = (unsigned long) address; - set_fixmap_nocache(FIX_APIC_BASE, mp_lapic_addr); - if (boot_cpu_id == -1U) boot_cpu_id = GET_APIC_ID(apic_read(APIC_ID)); - - Dprintk("Boot CPU = %d\n", boot_cpu_physical_apicid); } - -void __cpuinit mp_register_lapic ( - u8 id, - u8 enabled) +void __cpuinit mp_register_lapic (u8 id, u8 enabled) { struct mpc_config_processor processor; int boot_cpu = 0; - if (id >= MAX_APICS) { - printk(KERN_WARNING "Processor #%d invalid (max %d)\n", - id, MAX_APICS); - return; - } - - if (id == boot_cpu_physical_apicid) + if (id == boot_cpu_id) boot_cpu = 1; processor.mpc_type = MP_PROCESSOR; processor.mpc_apicid = id; - processor.mpc_apicver = GET_APIC_VERSION(apic_read(APIC_LVR)); + processor.mpc_apicver = 0; processor.mpc_cpuflag = (enabled ? CPU_ENABLED : 0); processor.mpc_cpuflag |= (boot_cpu ? CPU_BOOTPROCESSOR : 0); - processor.mpc_cpufeature = (boot_cpu_data.x86 << 8) | - (boot_cpu_data.x86_model << 4) | boot_cpu_data.x86_mask; - processor.mpc_featureflag = boot_cpu_data.x86_capability[0]; + processor.mpc_cpufeature = 0; + processor.mpc_featureflag = 0; processor.mpc_reserved[0] = 0; processor.mpc_reserved[1] = 0; MP_processor_info(&processor); } -#ifdef CONFIG_X86_IO_APIC - #define MP_ISA_BUS 0 #define MP_MAX_IOAPIC_PIN 127 @@ -729,11 +628,9 @@ u32 pin_programmed[4]; } mp_ioapic_routing[MAX_IO_APICS]; - -static int mp_find_ioapic ( - int gsi) +static int mp_find_ioapic(int gsi) { - int i = 0; + int i = 0; /* Find the IOAPIC that manages this GSI. */ for (i = 0; i < nr_ioapics; i++) { @@ -743,17 +640,12 @@ } printk(KERN_ERR "ERROR: Unable to locate IOAPIC for GSI %d\n", gsi); - return -1; } - -void __init mp_register_ioapic ( - u8 id, - u32 address, - u32 gsi_base) +void __init mp_register_ioapic(u8 id, u32 address, u32 gsi_base) { - int idx = 0; + int idx = 0; if (nr_ioapics >= MAX_IO_APICS) { printk(KERN_ERR "ERROR: Max # of I/O APICs (%d) exceeded " @@ -774,7 +666,7 @@ set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address); mp_ioapics[idx].mpc_apicid = id; - mp_ioapics[idx].mpc_apicver = io_apic_get_version(idx); + mp_ioapics[idx].mpc_apicver = 0; /* * Build basic IRQ lookup table to facilitate gsi->io_apic lookups @@ -785,21 +677,15 @@ mp_ioapic_routing[idx].gsi_end = gsi_base + io_apic_get_redir_entries(idx); - printk(KERN_INFO "IOAPIC[%d]: apic_id %d, version %d, address 0x%x, " + printk(KERN_INFO "IOAPIC[%d]: apic_id %d, address 0x%x, " "GSI %d-%d\n", idx, mp_ioapics[idx].mpc_apicid, - mp_ioapics[idx].mpc_apicver, mp_ioapics[idx].mpc_apicaddr, + mp_ioapics[idx].mpc_apicaddr, mp_ioapic_routing[idx].gsi_start, mp_ioapic_routing[idx].gsi_end); - - return; } - -void __init mp_override_legacy_irq ( - u8 bus_irq, - u8 polarity, - u8 trigger, - u32 gsi) +void __init +mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32 gsi) { struct mpc_config_intsrc intsrc; int ioapic = -1; @@ -837,22 +723,18 @@ mp_irqs[mp_irq_entries] = intsrc; if (++mp_irq_entries == MAX_IRQ_SOURCES) panic("Max # of irq sources exceeded!\n"); - - return; } - -void __init mp_config_acpi_legacy_irqs (void) +void __init mp_config_acpi_legacy_irqs(void) { struct mpc_config_intsrc intsrc; - int i = 0; - int ioapic = -1; + int i = 0; + int ioapic = -1; /* * Fabricate the legacy ISA bus (bus #31). */ - mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA; - Dprintk("Bus #%d is ISA\n", MP_ISA_BUS); + set_bit(MP_ISA_BUS, mp_bus_not_pci); /* * Locate the IOAPIC that manages the ISA IRQs (0-15). @@ -905,24 +787,22 @@ if (++mp_irq_entries == MAX_IRQ_SOURCES) panic("Max # of irq sources exceeded!\n"); } - - return; } #define MAX_GSI_NUM 4096 int mp_register_gsi(u32 gsi, int triggering, int polarity) { - int ioapic = -1; - int ioapic_pin = 0; - int idx, bit = 0; - static int pci_irq = 16; + int ioapic = -1; + int ioapic_pin = 0; + int idx, bit = 0; + static int pci_irq = 16; /* * Mapping between Global System Interrupts, which * represent all possible interrupts, to the IRQs * assigned to actual devices. */ - static int gsi_to_irq[MAX_GSI_NUM]; + static int gsi_to_irq[MAX_GSI_NUM]; if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC) return gsi; @@ -996,6 +876,4 @@ polarity == ACPI_ACTIVE_HIGH ? 0 : 1); return gsi; } - -#endif /*CONFIG_X86_IO_APIC*/ #endif /*CONFIG_ACPI*/
diff --git a/arch/x86_64/kernel/nmi.c b/arch/x86_64/kernel/nmi.c index 5baa0c7..4d6fb04 100644 --- a/arch/x86_64/kernel/nmi.c +++ b/arch/x86_64/kernel/nmi.c
@@ -28,71 +28,138 @@ #include <asm/mce.h> #include <asm/intel_arch_perfmon.h> -/* - * lapic_nmi_owner tracks the ownership of the lapic NMI hardware: - * - it may be reserved by some other driver, or not - * - when not reserved by some other driver, it may be used for - * the NMI watchdog, or not - * - * This is maintained separately from nmi_active because the NMI - * watchdog may also be driven from the I/O APIC timer. +/* perfctr_nmi_owner tracks the ownership of the perfctr registers: + * evtsel_nmi_owner tracks the ownership of the event selection + * - different performance counters/ event selection may be reserved for + * different subsystems this reservation system just tries to coordinate + * things a little */ -static DEFINE_SPINLOCK(lapic_nmi_owner_lock); -static unsigned int lapic_nmi_owner; -#define LAPIC_NMI_WATCHDOG (1<<0) -#define LAPIC_NMI_RESERVED (1<<1) +static DEFINE_PER_CPU(unsigned, perfctr_nmi_owner); +static DEFINE_PER_CPU(unsigned, evntsel_nmi_owner[2]); + +/* this number is calculated from Intel's MSR_P4_CRU_ESCR5 register and it's + * offset from MSR_P4_BSU_ESCR0. It will be the max for all platforms (for now) + */ +#define NMI_MAX_COUNTER_BITS 66 /* nmi_active: - * +1: the lapic NMI watchdog is active, but can be disabled - * 0: the lapic NMI watchdog has not been set up, and cannot + * >0: the lapic NMI watchdog is active, but can be disabled + * <0: the lapic NMI watchdog has not been set up, and cannot * be enabled - * -1: the lapic NMI watchdog is disabled, but can be enabled + * 0: the lapic NMI watchdog is disabled, but can be enabled */ -int nmi_active; /* oprofile uses this */ +atomic_t nmi_active = ATOMIC_INIT(0); /* oprofile uses this */ int panic_on_timeout; unsigned int nmi_watchdog = NMI_DEFAULT; static unsigned int nmi_hz = HZ; -static unsigned int nmi_perfctr_msr; /* the MSR to reset in NMI handler */ -static unsigned int nmi_p4_cccr_val; -/* Note that these events don't tick when the CPU idles. This means - the frequency varies with CPU load. */ +struct nmi_watchdog_ctlblk { + int enabled; + u64 check_bit; + unsigned int cccr_msr; + unsigned int perfctr_msr; /* the MSR to reset in NMI handler */ + unsigned int evntsel_msr; /* the MSR to select the events to handle */ +}; +static DEFINE_PER_CPU(struct nmi_watchdog_ctlblk, nmi_watchdog_ctlblk); -#define K7_EVNTSEL_ENABLE (1 << 22) -#define K7_EVNTSEL_INT (1 << 20) -#define K7_EVNTSEL_OS (1 << 17) -#define K7_EVNTSEL_USR (1 << 16) -#define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76 -#define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING +/* local prototypes */ +static int unknown_nmi_panic_callback(struct pt_regs *regs, int cpu); -#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL -#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK +/* converts an msr to an appropriate reservation bit */ +static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr) +{ + /* returns the bit offset of the performance counter register */ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + return (msr - MSR_K7_PERFCTR0); + case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) + return (msr - MSR_ARCH_PERFMON_PERFCTR0); + else + return (msr - MSR_P4_BPU_PERFCTR0); + } + return 0; +} -#define MSR_P4_MISC_ENABLE 0x1A0 -#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) -#define MSR_P4_MISC_ENABLE_PEBS_UNAVAIL (1<<12) -#define MSR_P4_PERFCTR0 0x300 -#define MSR_P4_CCCR0 0x360 -#define P4_ESCR_EVENT_SELECT(N) ((N)<<25) -#define P4_ESCR_OS (1<<3) -#define P4_ESCR_USR (1<<2) -#define P4_CCCR_OVF_PMI0 (1<<26) -#define P4_CCCR_OVF_PMI1 (1<<27) -#define P4_CCCR_THRESHOLD(N) ((N)<<20) -#define P4_CCCR_COMPLEMENT (1<<19) -#define P4_CCCR_COMPARE (1<<18) -#define P4_CCCR_REQUIRED (3<<16) -#define P4_CCCR_ESCR_SELECT(N) ((N)<<13) -#define P4_CCCR_ENABLE (1<<12) -/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter - CRU_ESCR0 (with any non-null event selector) through a complemented - max threshold. [IA32-Vol3, Section 14.9.9] */ -#define MSR_P4_IQ_COUNTER0 0x30C -#define P4_NMI_CRU_ESCR0 (P4_ESCR_EVENT_SELECT(0x3F)|P4_ESCR_OS|P4_ESCR_USR) -#define P4_NMI_IQ_CCCR0 \ - (P4_CCCR_OVF_PMI0|P4_CCCR_THRESHOLD(15)|P4_CCCR_COMPLEMENT| \ - P4_CCCR_COMPARE|P4_CCCR_REQUIRED|P4_CCCR_ESCR_SELECT(4)|P4_CCCR_ENABLE) +/* converts an msr to an appropriate reservation bit */ +static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr) +{ + /* returns the bit offset of the event selection register */ + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + return (msr - MSR_K7_EVNTSEL0); + case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) + return (msr - MSR_ARCH_PERFMON_EVENTSEL0); + else + return (msr - MSR_P4_BSU_ESCR0); + } + return 0; +} + +/* checks for a bit availability (hack for oprofile) */ +int avail_to_resrv_perfctr_nmi_bit(unsigned int counter) +{ + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + return (!test_bit(counter, &__get_cpu_var(perfctr_nmi_owner))); +} + +/* checks the an msr for availability */ +int avail_to_resrv_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + return (!test_bit(counter, &__get_cpu_var(perfctr_nmi_owner))); +} + +int reserve_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + if (!test_and_set_bit(counter, &__get_cpu_var(perfctr_nmi_owner))) + return 1; + return 0; +} + +void release_perfctr_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_perfctr_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + clear_bit(counter, &__get_cpu_var(perfctr_nmi_owner)); +} + +int reserve_evntsel_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_evntsel_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + if (!test_and_set_bit(counter, &__get_cpu_var(evntsel_nmi_owner))) + return 1; + return 0; +} + +void release_evntsel_nmi(unsigned int msr) +{ + unsigned int counter; + + counter = nmi_evntsel_msr_to_bit(msr); + BUG_ON(counter > NMI_MAX_COUNTER_BITS); + + clear_bit(counter, &__get_cpu_var(evntsel_nmi_owner)); +} static __cpuinit inline int nmi_known_cpu(void) { @@ -109,7 +176,7 @@ } /* Run after command line and cpu_init init, but before all other checks */ -void __cpuinit nmi_watchdog_default(void) +void nmi_watchdog_default(void) { if (nmi_watchdog != NMI_DEFAULT) return; @@ -145,6 +212,12 @@ int *counts; int cpu; + if ((nmi_watchdog == NMI_NONE) || (nmi_watchdog == NMI_DEFAULT)) + return 0; + + if (!atomic_read(&nmi_active)) + return 0; + counts = kmalloc(NR_CPUS * sizeof(int), GFP_KERNEL); if (!counts) return -1; @@ -162,26 +235,43 @@ mdelay((10*1000)/nmi_hz); // wait 10 ticks for_each_online_cpu(cpu) { + if (!per_cpu(nmi_watchdog_ctlblk, cpu).enabled) + continue; if (cpu_pda(cpu)->__nmi_count - counts[cpu] <= 5) { - endflag = 1; printk("CPU#%d: NMI appears to be stuck (%d->%d)!\n", cpu, counts[cpu], cpu_pda(cpu)->__nmi_count); - nmi_active = 0; - lapic_nmi_owner &= ~LAPIC_NMI_WATCHDOG; - nmi_perfctr_msr = 0; - kfree(counts); - return -1; + per_cpu(nmi_watchdog_ctlblk, cpu).enabled = 0; + atomic_dec(&nmi_active); } } + if (!atomic_read(&nmi_active)) { + kfree(counts); + atomic_set(&nmi_active, -1); + return -1; + } endflag = 1; printk("OK.\n"); /* now that we know it works we can reduce NMI frequency to something more reasonable; makes a difference in some configs */ - if (nmi_watchdog == NMI_LOCAL_APIC) + if (nmi_watchdog == NMI_LOCAL_APIC) { + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + nmi_hz = 1; + /* + * On Intel CPUs with ARCH_PERFMON only 32 bits in the counter + * are writable, with higher bits sign extending from bit 31. + * So, we can only program the counter with 31 bit values and + * 32nd bit should be 1, for 33.. to be 1. + * Find the appropriate nmi_hz + */ + if (wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0 && + ((u64)cpu_khz * 1000) > 0x7fffffffULL) { + nmi_hz = ((u64)cpu_khz * 1000) / 0x7fffffffUL + 1; + } + } kfree(counts); return 0; @@ -201,91 +291,65 @@ get_option(&str, &nmi); - if (nmi >= NMI_INVALID) + if ((nmi >= NMI_INVALID) || (nmi < NMI_NONE)) return 0; + + if ((nmi == NMI_LOCAL_APIC) && (nmi_known_cpu() == 0)) + return 0; /* no lapic support */ nmi_watchdog = nmi; return 1; } __setup("nmi_watchdog=", setup_nmi_watchdog); -static void disable_intel_arch_watchdog(void); - static void disable_lapic_nmi_watchdog(void) { - if (nmi_active <= 0) + BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); + + if (atomic_read(&nmi_active) <= 0) return; - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - wrmsr(MSR_K7_EVNTSEL0, 0, 0); - break; - case X86_VENDOR_INTEL: - if (boot_cpu_data.x86 == 15) { - wrmsr(MSR_P4_IQ_CCCR0, 0, 0); - wrmsr(MSR_P4_CRU_ESCR0, 0, 0); - } else if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - disable_intel_arch_watchdog(); - } - break; - } - nmi_active = -1; - /* tell do_nmi() and others that we're not active any more */ - nmi_watchdog = 0; + + on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); + + BUG_ON(atomic_read(&nmi_active) != 0); } static void enable_lapic_nmi_watchdog(void) { - if (nmi_active < 0) { - nmi_watchdog = NMI_LOCAL_APIC; - touch_nmi_watchdog(); - setup_apic_nmi_watchdog(); - } -} + BUG_ON(nmi_watchdog != NMI_LOCAL_APIC); -int reserve_lapic_nmi(void) -{ - unsigned int old_owner; + /* are we already enabled */ + if (atomic_read(&nmi_active) != 0) + return; - spin_lock(&lapic_nmi_owner_lock); - old_owner = lapic_nmi_owner; - lapic_nmi_owner |= LAPIC_NMI_RESERVED; - spin_unlock(&lapic_nmi_owner_lock); - if (old_owner & LAPIC_NMI_RESERVED) - return -EBUSY; - if (old_owner & LAPIC_NMI_WATCHDOG) - disable_lapic_nmi_watchdog(); - return 0; -} + /* are we lapic aware */ + if (nmi_known_cpu() <= 0) + return; -void release_lapic_nmi(void) -{ - unsigned int new_owner; - - spin_lock(&lapic_nmi_owner_lock); - new_owner = lapic_nmi_owner & ~LAPIC_NMI_RESERVED; - lapic_nmi_owner = new_owner; - spin_unlock(&lapic_nmi_owner_lock); - if (new_owner & LAPIC_NMI_WATCHDOG) - enable_lapic_nmi_watchdog(); + on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); + touch_nmi_watchdog(); } void disable_timer_nmi_watchdog(void) { - if ((nmi_watchdog != NMI_IO_APIC) || (nmi_active <= 0)) + BUG_ON(nmi_watchdog != NMI_IO_APIC); + + if (atomic_read(&nmi_active) <= 0) return; disable_irq(0); - unset_nmi_callback(); - nmi_active = -1; - nmi_watchdog = NMI_NONE; + on_each_cpu(stop_apic_nmi_watchdog, NULL, 0, 1); + + BUG_ON(atomic_read(&nmi_active) != 0); } void enable_timer_nmi_watchdog(void) { - if (nmi_active < 0) { - nmi_watchdog = NMI_IO_APIC; + BUG_ON(nmi_watchdog != NMI_IO_APIC); + + if (atomic_read(&nmi_active) == 0) { touch_nmi_watchdog(); - nmi_active = 1; + on_each_cpu(setup_apic_nmi_watchdog, NULL, 0, 1); enable_irq(0); } } @@ -296,15 +360,20 @@ static int lapic_nmi_suspend(struct sys_device *dev, pm_message_t state) { - nmi_pm_active = nmi_active; - disable_lapic_nmi_watchdog(); + /* only CPU0 goes here, other CPUs should be offline */ + nmi_pm_active = atomic_read(&nmi_active); + stop_apic_nmi_watchdog(NULL); + BUG_ON(atomic_read(&nmi_active) != 0); return 0; } static int lapic_nmi_resume(struct sys_device *dev) { - if (nmi_pm_active > 0) - enable_lapic_nmi_watchdog(); + /* only CPU0 goes here, other CPUs should be offline */ + if (nmi_pm_active > 0) { + setup_apic_nmi_watchdog(NULL); + touch_nmi_watchdog(); + } return 0; } @@ -323,7 +392,13 @@ { int error; - if (nmi_active == 0 || nmi_watchdog != NMI_LOCAL_APIC) + /* should really be a BUG_ON but b/c this is an + * init call, it just doesn't work. -dcz + */ + if (nmi_watchdog != NMI_LOCAL_APIC) + return 0; + + if ( atomic_read(&nmi_active) < 0 ) return 0; error = sysdev_class_register(&nmi_sysclass); @@ -341,74 +416,209 @@ * Original code written by Keith Owens. */ -static void clear_msr_range(unsigned int base, unsigned int n) -{ - unsigned int i; +/* Note that these events don't tick when the CPU idles. This means + the frequency varies with CPU load. */ - for(i = 0; i < n; ++i) - wrmsr(base+i, 0, 0); -} +#define K7_EVNTSEL_ENABLE (1 << 22) +#define K7_EVNTSEL_INT (1 << 20) +#define K7_EVNTSEL_OS (1 << 17) +#define K7_EVNTSEL_USR (1 << 16) +#define K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING 0x76 +#define K7_NMI_EVENT K7_EVENT_CYCLES_PROCESSOR_IS_RUNNING -static void setup_k7_watchdog(void) +static int setup_k7_watchdog(void) { - int i; + unsigned int perfctr_msr, evntsel_msr; unsigned int evntsel; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - nmi_perfctr_msr = MSR_K7_PERFCTR0; + perfctr_msr = MSR_K7_PERFCTR0; + evntsel_msr = MSR_K7_EVNTSEL0; + if (!reserve_perfctr_nmi(perfctr_msr)) + goto fail; - for(i = 0; i < 4; ++i) { - /* Simulator may not support it */ - if (checking_wrmsrl(MSR_K7_EVNTSEL0+i, 0UL)) { - nmi_perfctr_msr = 0; - return; - } - wrmsrl(MSR_K7_PERFCTR0+i, 0UL); - } + if (!reserve_evntsel_nmi(evntsel_msr)) + goto fail1; + + /* Simulator may not support it */ + if (checking_wrmsrl(evntsel_msr, 0UL)) + goto fail2; + wrmsrl(perfctr_msr, 0UL); evntsel = K7_EVNTSEL_INT | K7_EVNTSEL_OS | K7_EVNTSEL_USR | K7_NMI_EVENT; - wrmsr(MSR_K7_EVNTSEL0, evntsel, 0); - wrmsrl(MSR_K7_PERFCTR0, -((u64)cpu_khz * 1000 / nmi_hz)); + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + wrmsrl(perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); apic_write(APIC_LVTPC, APIC_DM_NMI); evntsel |= K7_EVNTSEL_ENABLE; - wrmsr(MSR_K7_EVNTSEL0, evntsel, 0); + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + wd->check_bit = 1ULL<<63; + return 1; +fail2: + release_evntsel_nmi(evntsel_msr); +fail1: + release_perfctr_nmi(perfctr_msr); +fail: + return 0; } -static void disable_intel_arch_watchdog(void) +static void stop_k7_watchdog(void) { - unsigned ebx; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - /* - * Check whether the Architectural PerfMon supports - * Unhalted Core Cycles Event or not. - * NOTE: Corresponding bit = 0 in ebp indicates event present. - */ - ebx = cpuid_ebx(10); - if (!(ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) - wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, 0, 0); + wrmsr(wd->evntsel_msr, 0, 0); + + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); } +/* Note that these events don't tick when the CPU idles. This means + the frequency varies with CPU load. */ + +#define MSR_P4_MISC_ENABLE_PERF_AVAIL (1<<7) +#define P4_ESCR_EVENT_SELECT(N) ((N)<<25) +#define P4_ESCR_OS (1<<3) +#define P4_ESCR_USR (1<<2) +#define P4_CCCR_OVF_PMI0 (1<<26) +#define P4_CCCR_OVF_PMI1 (1<<27) +#define P4_CCCR_THRESHOLD(N) ((N)<<20) +#define P4_CCCR_COMPLEMENT (1<<19) +#define P4_CCCR_COMPARE (1<<18) +#define P4_CCCR_REQUIRED (3<<16) +#define P4_CCCR_ESCR_SELECT(N) ((N)<<13) +#define P4_CCCR_ENABLE (1<<12) +#define P4_CCCR_OVF (1<<31) +/* Set up IQ_COUNTER0 to behave like a clock, by having IQ_CCCR0 filter + CRU_ESCR0 (with any non-null event selector) through a complemented + max threshold. [IA32-Vol3, Section 14.9.9] */ + +static int setup_p4_watchdog(void) +{ + unsigned int perfctr_msr, evntsel_msr, cccr_msr; + unsigned int evntsel, cccr_val; + unsigned int misc_enable, dummy; + unsigned int ht_num; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + rdmsr(MSR_IA32_MISC_ENABLE, misc_enable, dummy); + if (!(misc_enable & MSR_P4_MISC_ENABLE_PERF_AVAIL)) + return 0; + +#ifdef CONFIG_SMP + /* detect which hyperthread we are on */ + if (smp_num_siblings == 2) { + unsigned int ebx, apicid; + + ebx = cpuid_ebx(1); + apicid = (ebx >> 24) & 0xff; + ht_num = apicid & 1; + } else +#endif + ht_num = 0; + + /* performance counters are shared resources + * assign each hyperthread its own set + * (re-use the ESCR0 register, seems safe + * and keeps the cccr_val the same) + */ + if (!ht_num) { + /* logical cpu 0 */ + perfctr_msr = MSR_P4_IQ_PERFCTR0; + evntsel_msr = MSR_P4_CRU_ESCR0; + cccr_msr = MSR_P4_IQ_CCCR0; + cccr_val = P4_CCCR_OVF_PMI0 | P4_CCCR_ESCR_SELECT(4); + } else { + /* logical cpu 1 */ + perfctr_msr = MSR_P4_IQ_PERFCTR1; + evntsel_msr = MSR_P4_CRU_ESCR0; + cccr_msr = MSR_P4_IQ_CCCR1; + cccr_val = P4_CCCR_OVF_PMI1 | P4_CCCR_ESCR_SELECT(4); + } + + if (!reserve_perfctr_nmi(perfctr_msr)) + goto fail; + + if (!reserve_evntsel_nmi(evntsel_msr)) + goto fail1; + + evntsel = P4_ESCR_EVENT_SELECT(0x3F) + | P4_ESCR_OS + | P4_ESCR_USR; + + cccr_val |= P4_CCCR_THRESHOLD(15) + | P4_CCCR_COMPLEMENT + | P4_CCCR_COMPARE + | P4_CCCR_REQUIRED; + + wrmsr(evntsel_msr, evntsel, 0); + wrmsr(cccr_msr, cccr_val, 0); + wrmsrl(perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); + apic_write(APIC_LVTPC, APIC_DM_NMI); + cccr_val |= P4_CCCR_ENABLE; + wrmsr(cccr_msr, cccr_val, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = cccr_msr; + wd->check_bit = 1ULL<<39; + return 1; +fail1: + release_perfctr_nmi(perfctr_msr); +fail: + return 0; +} + +static void stop_p4_watchdog(void) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + wrmsr(wd->cccr_msr, 0, 0); + wrmsr(wd->evntsel_msr, 0, 0); + + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); +} + +#define ARCH_PERFMON_NMI_EVENT_SEL ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL +#define ARCH_PERFMON_NMI_EVENT_UMASK ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK + static int setup_intel_arch_watchdog(void) { + unsigned int ebx; + union cpuid10_eax eax; + unsigned int unused; + unsigned int perfctr_msr, evntsel_msr; unsigned int evntsel; - unsigned ebx; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); /* * Check whether the Architectural PerfMon supports * Unhalted Core Cycles Event or not. - * NOTE: Corresponding bit = 0 in ebp indicates event present. + * NOTE: Corresponding bit = 0 in ebx indicates event present. */ - ebx = cpuid_ebx(10); - if ((ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) - return 0; + cpuid(10, &(eax.full), &ebx, &unused, &unused); + if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || + (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) + goto fail; - nmi_perfctr_msr = MSR_ARCH_PERFMON_PERFCTR0; + perfctr_msr = MSR_ARCH_PERFMON_PERFCTR0; + evntsel_msr = MSR_ARCH_PERFMON_EVENTSEL0; - clear_msr_range(MSR_ARCH_PERFMON_EVENTSEL0, 2); - clear_msr_range(MSR_ARCH_PERFMON_PERFCTR0, 2); + if (!reserve_perfctr_nmi(perfctr_msr)) + goto fail; + + if (!reserve_evntsel_nmi(evntsel_msr)) + goto fail1; + + wrmsrl(perfctr_msr, 0UL); evntsel = ARCH_PERFMON_EVENTSEL_INT | ARCH_PERFMON_EVENTSEL_OS @@ -416,84 +626,122 @@ | ARCH_PERFMON_NMI_EVENT_SEL | ARCH_PERFMON_NMI_EVENT_UMASK; - wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, evntsel, 0); - wrmsrl(MSR_ARCH_PERFMON_PERFCTR0, -((u64)cpu_khz * 1000 / nmi_hz)); + /* setup the timer */ + wrmsr(evntsel_msr, evntsel, 0); + wrmsrl(perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); + apic_write(APIC_LVTPC, APIC_DM_NMI); evntsel |= ARCH_PERFMON_EVENTSEL0_ENABLE; - wrmsr(MSR_ARCH_PERFMON_EVENTSEL0, evntsel, 0); + wrmsr(evntsel_msr, evntsel, 0); + + wd->perfctr_msr = perfctr_msr; + wd->evntsel_msr = evntsel_msr; + wd->cccr_msr = 0; //unused + wd->check_bit = 1ULL << (eax.split.bit_width - 1); return 1; +fail1: + release_perfctr_nmi(perfctr_msr); +fail: + return 0; } - -static int setup_p4_watchdog(void) +static void stop_intel_arch_watchdog(void) { - unsigned int misc_enable, dummy; + unsigned int ebx; + union cpuid10_eax eax; + unsigned int unused; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); - rdmsr(MSR_P4_MISC_ENABLE, misc_enable, dummy); - if (!(misc_enable & MSR_P4_MISC_ENABLE_PERF_AVAIL)) - return 0; + /* + * Check whether the Architectural PerfMon supports + * Unhalted Core Cycles Event or not. + * NOTE: Corresponding bit = 0 in ebx indicates event present. + */ + cpuid(10, &(eax.full), &ebx, &unused, &unused); + if ((eax.split.mask_length < (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX+1)) || + (ebx & ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT)) + return; - nmi_perfctr_msr = MSR_P4_IQ_COUNTER0; - nmi_p4_cccr_val = P4_NMI_IQ_CCCR0; -#ifdef CONFIG_SMP - if (smp_num_siblings == 2) - nmi_p4_cccr_val |= P4_CCCR_OVF_PMI1; -#endif + wrmsr(wd->evntsel_msr, 0, 0); - if (!(misc_enable & MSR_P4_MISC_ENABLE_PEBS_UNAVAIL)) - clear_msr_range(0x3F1, 2); - /* MSR 0x3F0 seems to have a default value of 0xFC00, but current - docs doesn't fully define it, so leave it alone for now. */ - if (boot_cpu_data.x86_model >= 0x3) { - /* MSR_P4_IQ_ESCR0/1 (0x3ba/0x3bb) removed */ - clear_msr_range(0x3A0, 26); - clear_msr_range(0x3BC, 3); - } else { - clear_msr_range(0x3A0, 31); - } - clear_msr_range(0x3C0, 6); - clear_msr_range(0x3C8, 6); - clear_msr_range(0x3E0, 2); - clear_msr_range(MSR_P4_CCCR0, 18); - clear_msr_range(MSR_P4_PERFCTR0, 18); - - wrmsr(MSR_P4_CRU_ESCR0, P4_NMI_CRU_ESCR0, 0); - wrmsr(MSR_P4_IQ_CCCR0, P4_NMI_IQ_CCCR0 & ~P4_CCCR_ENABLE, 0); - Dprintk("setting P4_IQ_COUNTER0 to 0x%08lx\n", -(cpu_khz * 1000UL / nmi_hz)); - wrmsrl(MSR_P4_IQ_COUNTER0, -((u64)cpu_khz * 1000 / nmi_hz)); - apic_write(APIC_LVTPC, APIC_DM_NMI); - wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0); - return 1; + release_evntsel_nmi(wd->evntsel_msr); + release_perfctr_nmi(wd->perfctr_msr); } -void setup_apic_nmi_watchdog(void) +void setup_apic_nmi_watchdog(void *unused) { - switch (boot_cpu_data.x86_vendor) { - case X86_VENDOR_AMD: - if (boot_cpu_data.x86 != 15) - return; - if (strstr(boot_cpu_data.x86_model_id, "Screwdriver")) - return; - setup_k7_watchdog(); - break; - case X86_VENDOR_INTEL: - if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - if (!setup_intel_arch_watchdog()) + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + /* only support LOCAL and IO APICs for now */ + if ((nmi_watchdog != NMI_LOCAL_APIC) && + (nmi_watchdog != NMI_IO_APIC)) + return; + + if (wd->enabled == 1) + return; + + /* cheap hack to support suspend/resume */ + /* if cpu0 is not active neither should the other cpus */ + if ((smp_processor_id() != 0) && (atomic_read(&nmi_active) <= 0)) + return; + + if (nmi_watchdog == NMI_LOCAL_APIC) { + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + if (strstr(boot_cpu_data.x86_model_id, "Screwdriver")) return; - } else if (boot_cpu_data.x86 == 15) { + if (!setup_k7_watchdog()) + return; + break; + case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { + if (!setup_intel_arch_watchdog()) + return; + break; + } if (!setup_p4_watchdog()) return; - } else { + break; + default: return; } - - break; - - default: - return; } - lapic_nmi_owner = LAPIC_NMI_WATCHDOG; - nmi_active = 1; + wd->enabled = 1; + atomic_inc(&nmi_active); +} + +void stop_apic_nmi_watchdog(void *unused) +{ + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + + /* only support LOCAL and IO APICs for now */ + if ((nmi_watchdog != NMI_LOCAL_APIC) && + (nmi_watchdog != NMI_IO_APIC)) + return; + + if (wd->enabled == 0) + return; + + if (nmi_watchdog == NMI_LOCAL_APIC) { + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + if (strstr(boot_cpu_data.x86_model_id, "Screwdriver")) + return; + stop_k7_watchdog(); + break; + case X86_VENDOR_INTEL: + if (cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { + stop_intel_arch_watchdog(); + break; + } + stop_p4_watchdog(); + break; + default: + return; + } + } + wd->enabled = 0; + atomic_dec(&nmi_active); } /* @@ -526,93 +774,109 @@ touch_softlockup_watchdog(); } -void __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) +int __kprobes nmi_watchdog_tick(struct pt_regs * regs, unsigned reason) { int sum; int touched = 0; + struct nmi_watchdog_ctlblk *wd = &__get_cpu_var(nmi_watchdog_ctlblk); + u64 dummy; + int rc=0; + + /* check for other users first */ + if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) + == NOTIFY_STOP) { + rc = 1; + touched = 1; + } sum = read_pda(apic_timer_irqs); if (__get_cpu_var(nmi_touch)) { __get_cpu_var(nmi_touch) = 0; touched = 1; } + #ifdef CONFIG_X86_MCE /* Could check oops_in_progress here too, but it's safer not too */ if (atomic_read(&mce_entry) > 0) touched = 1; #endif + /* if the apic timer isn't firing, this cpu isn't doing much */ if (!touched && __get_cpu_var(last_irq_sum) == sum) { /* * Ayiee, looks like this CPU is stuck ... * wait a few IRQs (5 seconds) before doing the oops ... */ local_inc(&__get_cpu_var(alert_counter)); - if (local_read(&__get_cpu_var(alert_counter)) == 5*nmi_hz) { - if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) - == NOTIFY_STOP) { - local_set(&__get_cpu_var(alert_counter), 0); - return; - } - die_nmi("NMI Watchdog detected LOCKUP on CPU %d\n", regs); - } + if (local_read(&__get_cpu_var(alert_counter)) == 5*nmi_hz) + die_nmi("NMI Watchdog detected LOCKUP on CPU %d\n", regs, + panic_on_timeout); } else { __get_cpu_var(last_irq_sum) = sum; local_set(&__get_cpu_var(alert_counter), 0); } - if (nmi_perfctr_msr) { - if (nmi_perfctr_msr == MSR_P4_IQ_COUNTER0) { - /* - * P4 quirks: - * - An overflown perfctr will assert its interrupt - * until the OVF flag in its CCCR is cleared. - * - LVTPC is masked on interrupt and must be - * unmasked by the LVTPC handler. - */ - wrmsr(MSR_P4_IQ_CCCR0, nmi_p4_cccr_val, 0); - apic_write(APIC_LVTPC, APIC_DM_NMI); - } else if (nmi_perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) { - /* - * For Intel based architectural perfmon - * - LVTPC is masked on interrupt and must be - * unmasked by the LVTPC handler. + + /* see if the nmi watchdog went off */ + if (wd->enabled) { + if (nmi_watchdog == NMI_LOCAL_APIC) { + rdmsrl(wd->perfctr_msr, dummy); + if (dummy & wd->check_bit){ + /* this wasn't a watchdog timer interrupt */ + goto done; + } + + /* only Intel uses the cccr msr */ + if (wd->cccr_msr != 0) { + /* + * P4 quirks: + * - An overflown perfctr will assert its interrupt + * until the OVF flag in its CCCR is cleared. + * - LVTPC is masked on interrupt and must be + * unmasked by the LVTPC handler. + */ + rdmsrl(wd->cccr_msr, dummy); + dummy &= ~P4_CCCR_OVF; + wrmsrl(wd->cccr_msr, dummy); + apic_write(APIC_LVTPC, APIC_DM_NMI); + } else if (wd->perfctr_msr == MSR_ARCH_PERFMON_PERFCTR0) { + /* + * ArchPerfom/Core Duo needs to re-unmask + * the apic vector + */ + apic_write(APIC_LVTPC, APIC_DM_NMI); + } + /* start the cycle over again */ + wrmsrl(wd->perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); + rc = 1; + } else if (nmi_watchdog == NMI_IO_APIC) { + /* don't know how to accurately check for this. + * just assume it was a watchdog timer interrupt + * This matches the old behaviour. */ - apic_write(APIC_LVTPC, APIC_DM_NMI); - } - wrmsrl(nmi_perfctr_msr, -((u64)cpu_khz * 1000 / nmi_hz)); + rc = 1; + } else + printk(KERN_WARNING "Unknown enabled NMI hardware?!\n"); } +done: + return rc; } -static __kprobes int dummy_nmi_callback(struct pt_regs * regs, int cpu) -{ - return 0; -} - -static nmi_callback_t nmi_callback = dummy_nmi_callback; - asmlinkage __kprobes void do_nmi(struct pt_regs * regs, long error_code) { - int cpu = safe_smp_processor_id(); - nmi_enter(); add_pda(__nmi_count,1); - if (!rcu_dereference(nmi_callback)(regs, cpu)) - default_do_nmi(regs); + default_do_nmi(regs); nmi_exit(); } -void set_nmi_callback(nmi_callback_t callback) +int do_nmi_callback(struct pt_regs * regs, int cpu) { - vmalloc_sync_all(); - rcu_assign_pointer(nmi_callback, callback); +#ifdef CONFIG_SYSCTL + if (unknown_nmi_panic) + return unknown_nmi_panic_callback(regs, cpu); +#endif + return 0; } -EXPORT_SYMBOL_GPL(set_nmi_callback); - -void unset_nmi_callback(void) -{ - nmi_callback = dummy_nmi_callback; -} -EXPORT_SYMBOL_GPL(unset_nmi_callback); #ifdef CONFIG_SYSCTL @@ -621,36 +885,42 @@ unsigned char reason = get_nmi_reason(); char buf[64]; - if (!(reason & 0xc0)) { - sprintf(buf, "NMI received for unknown reason %02x\n", reason); - die_nmi(buf,regs); - } + sprintf(buf, "NMI received for unknown reason %02x\n", reason); + die_nmi(buf, regs, 1); /* Always panic here */ return 0; } /* - * proc handler for /proc/sys/kernel/unknown_nmi_panic + * proc handler for /proc/sys/kernel/nmi */ -int proc_unknown_nmi_panic(struct ctl_table *table, int write, struct file *file, +int proc_nmi_enabled(struct ctl_table *table, int write, struct file *file, void __user *buffer, size_t *length, loff_t *ppos) { int old_state; - old_state = unknown_nmi_panic; + nmi_watchdog_enabled = (atomic_read(&nmi_active) > 0) ? 1 : 0; + old_state = nmi_watchdog_enabled; proc_dointvec(table, write, file, buffer, length, ppos); - if (!!old_state == !!unknown_nmi_panic) + if (!!old_state == !!nmi_watchdog_enabled) return 0; - if (unknown_nmi_panic) { - if (reserve_lapic_nmi() < 0) { - unknown_nmi_panic = 0; - return -EBUSY; - } else { - set_nmi_callback(unknown_nmi_panic_callback); - } + if (atomic_read(&nmi_active) < 0) { + printk( KERN_WARNING "NMI watchdog is permanently disabled\n"); + return -EIO; + } + + /* if nmi_watchdog is not set yet, then set it */ + nmi_watchdog_default(); + + if (nmi_watchdog == NMI_LOCAL_APIC) { + if (nmi_watchdog_enabled) + enable_lapic_nmi_watchdog(); + else + disable_lapic_nmi_watchdog(); } else { - release_lapic_nmi(); - unset_nmi_callback(); + printk( KERN_WARNING + "NMI watchdog doesn't know what hardware to touch\n"); + return -EIO; } return 0; } @@ -659,8 +929,12 @@ EXPORT_SYMBOL(nmi_active); EXPORT_SYMBOL(nmi_watchdog); -EXPORT_SYMBOL(reserve_lapic_nmi); -EXPORT_SYMBOL(release_lapic_nmi); +EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi); +EXPORT_SYMBOL(avail_to_resrv_perfctr_nmi_bit); +EXPORT_SYMBOL(reserve_perfctr_nmi); +EXPORT_SYMBOL(release_perfctr_nmi); +EXPORT_SYMBOL(reserve_evntsel_nmi); +EXPORT_SYMBOL(release_evntsel_nmi); EXPORT_SYMBOL(disable_timer_nmi_watchdog); EXPORT_SYMBOL(enable_timer_nmi_watchdog); EXPORT_SYMBOL(touch_nmi_watchdog);
diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c index 146924b..cfb09b0 100644 --- a/arch/x86_64/kernel/pci-calgary.c +++ b/arch/x86_64/kernel/pci-calgary.c
@@ -86,7 +86,8 @@ #define MAX_NUM_OF_PHBS 8 /* how many PHBs in total? */ #define MAX_NUM_CHASSIS 8 /* max number of chassis */ -#define MAX_PHB_BUS_NUM (MAX_NUM_OF_PHBS * MAX_NUM_CHASSIS * 2) /* max dev->bus->number */ +/* MAX_PHB_BUS_NUM is the maximal possible dev->bus->number */ +#define MAX_PHB_BUS_NUM (MAX_NUM_OF_PHBS * MAX_NUM_CHASSIS * 2) #define PHBS_PER_CALGARY 4 /* register offsets in Calgary's internal register space */ @@ -111,31 +112,49 @@ 0xB000 /* PHB3 */ }; -static char bus_to_phb[MAX_PHB_BUS_NUM]; -void* tce_table_kva[MAX_PHB_BUS_NUM]; unsigned int specified_table_size = TCE_TABLE_SIZE_UNSPECIFIED; static int translate_empty_slots __read_mostly = 0; static int calgary_detected __read_mostly = 0; -/* - * the bitmap of PHBs the user requested that we disable - * translation on. - */ -static DECLARE_BITMAP(translation_disabled, MAX_PHB_BUS_NUM); +struct calgary_bus_info { + void *tce_space; + unsigned char translation_disabled; + signed char phbid; +}; + +static struct calgary_bus_info bus_info[MAX_PHB_BUS_NUM] = { { NULL, 0, 0 }, }; static void tce_cache_blast(struct iommu_table *tbl); /* enable this to stress test the chip's TCE cache */ #ifdef CONFIG_IOMMU_DEBUG -static inline void tce_cache_blast_stress(struct iommu_table *tbl) +int debugging __read_mostly = 1; + +static inline unsigned long verify_bit_range(unsigned long* bitmap, + int expected, unsigned long start, unsigned long end) { - tce_cache_blast(tbl); + unsigned long idx = start; + + BUG_ON(start >= end); + + while (idx < end) { + if (!!test_bit(idx, bitmap) != expected) + return idx; + ++idx; + } + + /* all bits have the expected value */ + return ~0UL; } -#else -static inline void tce_cache_blast_stress(struct iommu_table *tbl) +#else /* debugging is disabled */ +int debugging __read_mostly = 0; + +static inline unsigned long verify_bit_range(unsigned long* bitmap, + int expected, unsigned long start, unsigned long end) { + return ~0UL; } -#endif /* BLAST_TCE_CACHE_ON_UNMAP */ +#endif /* CONFIG_IOMMU_DEBUG */ static inline unsigned int num_dma_pages(unsigned long dma, unsigned int dmalen) { @@ -149,7 +168,7 @@ static inline int translate_phb(struct pci_dev* dev) { - int disabled = test_bit(dev->bus->number, translation_disabled); + int disabled = bus_info[dev->bus->number].translation_disabled; return !disabled; } @@ -158,6 +177,7 @@ { unsigned long index; unsigned long end; + unsigned long badbit; index = start_addr >> PAGE_SHIFT; @@ -169,14 +189,15 @@ if (end > tbl->it_size) /* don't go off the table */ end = tbl->it_size; - while (index < end) { - if (test_bit(index, tbl->it_map)) + badbit = verify_bit_range(tbl->it_map, 0, index, end); + if (badbit != ~0UL) { + if (printk_ratelimit()) printk(KERN_ERR "Calgary: entry already allocated at " "0x%lx tbl %p dma 0x%lx npages %u\n", - index, tbl, start_addr, npages); - ++index; + badbit, tbl, start_addr, npages); } - set_bit_string(tbl->it_map, start_addr >> PAGE_SHIFT, npages); + + set_bit_string(tbl->it_map, index, npages); } static unsigned long iommu_range_alloc(struct iommu_table *tbl, @@ -243,7 +264,7 @@ unsigned int npages) { unsigned long entry; - unsigned long i; + unsigned long badbit; entry = dma_addr >> PAGE_SHIFT; @@ -251,16 +272,15 @@ tce_free(tbl, entry, npages); - for (i = 0; i < npages; ++i) { - if (!test_bit(entry + i, tbl->it_map)) + badbit = verify_bit_range(tbl->it_map, 1, entry, entry + npages); + if (badbit != ~0UL) { + if (printk_ratelimit()) printk(KERN_ERR "Calgary: bit is off at 0x%lx " "tbl %p dma 0x%Lx entry 0x%lx npages %u\n", - entry + i, tbl, dma_addr, entry, npages); + badbit, tbl, dma_addr, entry, npages); } __clear_bit_string(tbl->it_map, entry, npages); - - tce_cache_blast_stress(tbl); } static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr, @@ -454,7 +474,7 @@ static inline int busno_to_phbid(unsigned char num) { - return bus_to_phb[num]; + return bus_info[num].phbid; } static inline unsigned long split_queue_offset(unsigned char num) @@ -631,6 +651,10 @@ if (ret) return ret; + tbl = dev->sysdata; + tbl->it_base = (unsigned long)bus_info[dev->bus->number].tce_space; + tce_free(tbl, 0, tbl->it_size); + calgary_reserve_regions(dev); /* set TARs for each PHB */ @@ -654,11 +678,12 @@ return 0; } -static void __init calgary_free_tar(struct pci_dev *dev) +static void __init calgary_free_bus(struct pci_dev *dev) { u64 val64; struct iommu_table *tbl = dev->sysdata; void __iomem *target; + unsigned int bitmapsz; target = calgary_reg(tbl->bbar, tar_offset(dev->bus->number)); val64 = be64_to_cpu(readq(target)); @@ -666,8 +691,15 @@ writeq(cpu_to_be64(val64), target); readq(target); /* flush */ + bitmapsz = tbl->it_size / BITS_PER_BYTE; + free_pages((unsigned long)tbl->it_map, get_order(bitmapsz)); + tbl->it_map = NULL; + kfree(tbl); dev->sysdata = NULL; + + /* Can't free bootmem allocated memory after system is up :-( */ + bus_info[dev->bus->number].tce_space = NULL; } static void calgary_watchdog(unsigned long data) @@ -772,12 +804,11 @@ return address; } -static int __init calgary_init_one_nontraslated(struct pci_dev *dev) +static void __init calgary_init_one_nontraslated(struct pci_dev *dev) { + pci_dev_get(dev); dev->sysdata = NULL; dev->bus->self = dev; - - return 0; } static int __init calgary_init_one(struct pci_dev *dev) @@ -798,6 +829,7 @@ if (ret) goto iounmap; + pci_dev_get(dev); dev->bus->self = dev; calgary_enable_translation(dev); @@ -824,10 +856,9 @@ calgary_init_one_nontraslated(dev); continue; } - if (!tce_table_kva[dev->bus->number] && !translate_empty_slots) { - pci_dev_put(dev); + if (!bus_info[dev->bus->number].tce_space && !translate_empty_slots) continue; - } + ret = calgary_init_one(dev); if (ret) goto error; @@ -840,15 +871,18 @@ dev = pci_find_device_reverse(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CALGARY, dev); + if (!dev) + break; if (!translate_phb(dev)) { pci_dev_put(dev); continue; } - if (!tce_table_kva[dev->bus->number] && !translate_empty_slots) + if (!bus_info[dev->bus->number].tce_space && !translate_empty_slots) continue; + calgary_disable_translation(dev); - calgary_free_tar(dev); - pci_dev_put(dev); + calgary_free_bus(dev); + pci_dev_put(dev); /* Undo calgary_init_one()'s pci_dev_get() */ } return ret; @@ -890,13 +924,15 @@ if (swiotlb || no_iommu || iommu_detected) return; + if (!early_pci_allowed()) + return; + specified_table_size = determine_tce_table_size(end_pfn * PAGE_SIZE); for (bus = 0; bus < MAX_PHB_BUS_NUM; bus++) { int dev; - - tce_table_kva[bus] = NULL; - bus_to_phb[bus] = -1; + struct calgary_bus_info *info = &bus_info[bus]; + info->phbid = -1; if (read_pci_config(bus, 0, 0, 0) != PCI_VENDOR_DEVICE_ID_CALGARY) continue; @@ -907,12 +943,9 @@ */ phb = (phb + 1) % PHBS_PER_CALGARY; - if (test_bit(bus, translation_disabled)) { - printk(KERN_INFO "Calgary: translation is disabled for " - "PHB 0x%x\n", bus); - /* skip this phb, don't allocate a tbl for it */ + if (info->translation_disabled) continue; - } + /* * Scan the slots of the PCI bus to see if there is a device present. * The parent bus will be the zero-ith device, so start at 1. @@ -923,8 +956,8 @@ tbl = alloc_tce_table(); if (!tbl) goto cleanup; - tce_table_kva[bus] = tbl; - bus_to_phb[bus] = phb; + info->tce_space = tbl; + info->phbid = phb; calgary_found = 1; break; } @@ -934,15 +967,20 @@ if (calgary_found) { iommu_detected = 1; calgary_detected = 1; - printk(KERN_INFO "PCI-DMA: Calgary IOMMU detected. " - "TCE table spec is %d.\n", specified_table_size); + printk(KERN_INFO "PCI-DMA: Calgary IOMMU detected.\n"); + printk(KERN_INFO "PCI-DMA: Calgary TCE table spec is %d, " + "CONFIG_IOMMU_DEBUG is %s.\n", specified_table_size, + debugging ? "enabled" : "disabled"); } return; cleanup: - for (--bus; bus >= 0; --bus) - if (tce_table_kva[bus]) - free_tce_table(tce_table_kva[bus]); + for (--bus; bus >= 0; --bus) { + struct calgary_bus_info *info = &bus_info[bus]; + + if (info->tce_space) + free_tce_table(info->tce_space); + } } int __init calgary_iommu_init(void) @@ -1016,7 +1054,7 @@ if (bridge < MAX_PHB_BUS_NUM) { printk(KERN_INFO "Calgary: disabling " "translation for PHB 0x%x\n", bridge); - set_bit(bridge, translation_disabled); + bus_info[bridge].translation_disabled = 1; } }
diff --git a/arch/x86_64/kernel/pci-dma.c b/arch/x86_64/kernel/pci-dma.c index 9c44f4f..4dcb671 100644 --- a/arch/x86_64/kernel/pci-dma.c +++ b/arch/x86_64/kernel/pci-dma.c
@@ -236,6 +236,9 @@ { iommu_merge = 1; + if (!p) + return -EINVAL; + while (*p) { if (!strncmp(p,"off",3)) no_iommu = 1; @@ -278,9 +281,9 @@ if (*p == ',') ++p; } - return 1; + return 0; } -__setup("iommu=", iommu_setup); +early_param("iommu", iommu_setup); void __init pci_iommu_alloc(void) {
diff --git a/arch/x86_64/kernel/pci-gart.c b/arch/x86_64/kernel/pci-gart.c index 6d3e61b..16261a8 100644 --- a/arch/x86_64/kernel/pci-gart.c +++ b/arch/x86_64/kernel/pci-gart.c
@@ -239,8 +239,6 @@ { unsigned long phys_mem, bus; - BUG_ON(dir == DMA_NONE); - if (!dev) dev = &fallback_dev; @@ -383,7 +381,6 @@ unsigned long pages = 0; int need = 0, nextneed; - BUG_ON(dir == DMA_NONE); if (nents == 0) return 0;
diff --git a/arch/x86_64/kernel/pci-nommu.c b/arch/x86_64/kernel/pci-nommu.c index aad7609..df09ab0 100644 --- a/arch/x86_64/kernel/pci-nommu.c +++ b/arch/x86_64/kernel/pci-nommu.c
@@ -59,7 +59,6 @@ { int i; - BUG_ON(direction == DMA_NONE); for (i = 0; i < nents; i++ ) { struct scatterlist *s = &sg[i]; BUG_ON(!s->page);
diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c index bb6745d..458006a 100644 --- a/arch/x86_64/kernel/process.c +++ b/arch/x86_64/kernel/process.c
@@ -80,25 +80,25 @@ } EXPORT_SYMBOL(idle_notifier_unregister); -enum idle_state { CPU_IDLE, CPU_NOT_IDLE }; -static DEFINE_PER_CPU(enum idle_state, idle_state) = CPU_NOT_IDLE; - void enter_idle(void) { - __get_cpu_var(idle_state) = CPU_IDLE; + write_pda(isidle, 1); atomic_notifier_call_chain(&idle_notifier, IDLE_START, NULL); } static void __exit_idle(void) { - __get_cpu_var(idle_state) = CPU_NOT_IDLE; + if (read_pda(isidle) == 0) + return; + write_pda(isidle, 0); atomic_notifier_call_chain(&idle_notifier, IDLE_END, NULL); } /* Called from interrupts to signify idle end */ void exit_idle(void) { - if (current->pid | read_pda(irqcount)) + /* idle loop has pid 0 */ + if (current->pid) return; __exit_idle(); } @@ -220,6 +220,9 @@ play_dead(); enter_idle(); idle(); + /* In many cases the interrupt that ended idle + has already called exit_idle. But some idle + loops can be woken up without interrupt. */ __exit_idle(); } @@ -350,6 +353,7 @@ kfree(t->io_bitmap_ptr); t->io_bitmap_ptr = NULL; + clear_thread_flag(TIF_IO_BITMAP); /* * Careful, clear this in the TSS too: */ @@ -369,6 +373,7 @@ if (t->flags & _TIF_IA32) current_thread_info()->status |= TS_COMPAT; } + t->flags &= ~_TIF_DEBUG; tsk->thread.debugreg0 = 0; tsk->thread.debugreg1 = 0; @@ -461,7 +466,7 @@ asm("mov %%es,%0" : "=m" (p->thread.es)); asm("mov %%ds,%0" : "=m" (p->thread.ds)); - if (unlikely(me->thread.io_bitmap_ptr != NULL)) { + if (unlikely(test_tsk_thread_flag(me, TIF_IO_BITMAP))) { p->thread.io_bitmap_ptr = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL); if (!p->thread.io_bitmap_ptr) { p->thread.io_bitmap_max = 0; @@ -469,6 +474,7 @@ } memcpy(p->thread.io_bitmap_ptr, me->thread.io_bitmap_ptr, IO_BITMAP_BYTES); + set_tsk_thread_flag(p, TIF_IO_BITMAP); } /* @@ -498,6 +504,40 @@ */ #define loaddebug(thread,r) set_debugreg(thread->debugreg ## r, r) +static inline void __switch_to_xtra(struct task_struct *prev_p, + struct task_struct *next_p, + struct tss_struct *tss) +{ + struct thread_struct *prev, *next; + + prev = &prev_p->thread, + next = &next_p->thread; + + if (test_tsk_thread_flag(next_p, TIF_DEBUG)) { + loaddebug(next, 0); + loaddebug(next, 1); + loaddebug(next, 2); + loaddebug(next, 3); + /* no 4 and 5 */ + loaddebug(next, 6); + loaddebug(next, 7); + } + + if (test_tsk_thread_flag(next_p, TIF_IO_BITMAP)) { + /* + * Copy the relevant range of the IO bitmap. + * Normally this is 128 bytes or less: + */ + memcpy(tss->io_bitmap, next->io_bitmap_ptr, + max(prev->io_bitmap_max, next->io_bitmap_max)); + } else if (test_tsk_thread_flag(prev_p, TIF_IO_BITMAP)) { + /* + * Clear any possible leftover bits: + */ + memset(tss->io_bitmap, 0xff, prev->io_bitmap_max); + } +} + /* * switch_to(x,y) should switch tasks from x to y. * @@ -515,6 +555,10 @@ int cpu = smp_processor_id(); struct tss_struct *tss = &per_cpu(init_tss, cpu); + /* we're going to use this soon, after a few expensive things */ + if (next_p->fpu_counter>5) + prefetch(&next->i387.fxsave); + /* * Reload esp0, LDT and the page table pointer: */ @@ -583,41 +627,29 @@ And the AMD workaround requires it to be after DS reload. */ unlazy_fpu(prev_p); write_pda(kernelstack, - task_stack_page(next_p) + THREAD_SIZE - PDA_STACKOFFSET); + (unsigned long)task_stack_page(next_p) + THREAD_SIZE - PDA_STACKOFFSET); +#ifdef CONFIG_CC_STACKPROTECTOR + write_pda(stack_canary, next_p->stack_canary); + /* + * Build time only check to make sure the stack_canary is at + * offset 40 in the pda; this is a gcc ABI requirement + */ + BUILD_BUG_ON(offsetof(struct x8664_pda, stack_canary) != 40); +#endif /* - * Now maybe reload the debug registers + * Now maybe reload the debug registers and handle I/O bitmaps */ - if (unlikely(next->debugreg7)) { - loaddebug(next, 0); - loaddebug(next, 1); - loaddebug(next, 2); - loaddebug(next, 3); - /* no 4 and 5 */ - loaddebug(next, 6); - loaddebug(next, 7); - } + if (unlikely((task_thread_info(next_p)->flags & _TIF_WORK_CTXSW)) + || test_tsk_thread_flag(prev_p, TIF_IO_BITMAP)) + __switch_to_xtra(prev_p, next_p, tss); - - /* - * Handle the IO bitmap - */ - if (unlikely(prev->io_bitmap_ptr || next->io_bitmap_ptr)) { - if (next->io_bitmap_ptr) - /* - * Copy the relevant range of the IO bitmap. - * Normally this is 128 bytes or less: - */ - memcpy(tss->io_bitmap, next->io_bitmap_ptr, - max(prev->io_bitmap_max, next->io_bitmap_max)); - else { - /* - * Clear any possible leftover bits: - */ - memset(tss->io_bitmap, 0xff, prev->io_bitmap_max); - } - } - + /* If the task has used fpu the last 5 timeslices, just do a full + * restore of the math state immediately to avoid the trap; the + * chances of needing FPU soon are obviously high now + */ + if (next_p->fpu_counter>5) + math_state_restore(); return prev_p; } @@ -834,7 +866,7 @@ unsigned long arch_align_stack(unsigned long sp) { - if (randomize_va_space) + if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) sp -= get_random_int() % 8192; return sp & ~0xf; }
diff --git a/arch/x86_64/kernel/ptrace.c b/arch/x86_64/kernel/ptrace.c index 2d50024..addc14a 100644 --- a/arch/x86_64/kernel/ptrace.c +++ b/arch/x86_64/kernel/ptrace.c
@@ -116,17 +116,17 @@ return addr; } -static int is_at_popf(struct task_struct *child, struct pt_regs *regs) +static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs) { int i, copied; - unsigned char opcode[16]; + unsigned char opcode[15]; unsigned long addr = convert_rip_to_linear(child, regs); copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0); for (i = 0; i < copied; i++) { switch (opcode[i]) { - /* popf */ - case 0x9d: + /* popf and iret */ + case 0x9d: case 0xcf: return 1; /* CHECKME: 64 65 */ @@ -138,14 +138,17 @@ case 0x26: case 0x2e: case 0x36: case 0x3e: case 0x64: case 0x65: - case 0xf0: case 0xf2: case 0xf3: + case 0xf2: case 0xf3: continue; - /* REX prefixes */ case 0x40 ... 0x4f: + if (regs->cs != __USER_CS) + /* 32-bit mode: register increment */ + return 0; + /* 64-bit mode: REX prefix */ continue; - /* CHECKME: f0, f2, f3 */ + /* CHECKME: f2, f3 */ /* * pushf: NOTE! We should probably not let @@ -186,10 +189,8 @@ * ..but if TF is changed by the instruction we will trace, * don't mark it as being "us" that set it, so that we * won't clear it by hand later. - * - * AK: this is not enough, LAHF and IRET can change TF in user space too. */ - if (is_at_popf(child, regs)) + if (is_setting_trap_flag(child, regs)) return; child->ptrace |= PT_DTRACE; @@ -420,9 +421,13 @@ if ((0x5554 >> ((data >> (16 + 4*i)) & 0xf)) & 1) break; if (i == 4) { - child->thread.debugreg7 = data; + child->thread.debugreg7 = data; + if (data) + set_tsk_thread_flag(child, TIF_DEBUG); + else + clear_tsk_thread_flag(child, TIF_DEBUG); ret = 0; - } + } break; } break;
diff --git a/arch/x86_64/kernel/relocate_kernel.S b/arch/x86_64/kernel/relocate_kernel.S index d24fa9b..14e9587 100644 --- a/arch/x86_64/kernel/relocate_kernel.S +++ b/arch/x86_64/kernel/relocate_kernel.S
@@ -7,31 +7,169 @@ */ #include <linux/linkage.h> +#include <asm/page.h> +#include <asm/kexec.h> - /* - * Must be relocatable PIC code callable as a C function, that once - * it starts can not use the previous processes stack. - */ - .globl relocate_new_kernel +/* + * Must be relocatable PIC code callable as a C function + */ + +#define PTR(x) (x << 3) +#define PAGE_ALIGNED (1 << PAGE_SHIFT) +#define PAGE_ATTR 0x63 /* _PAGE_PRESENT|_PAGE_RW|_PAGE_ACCESSED|_PAGE_DIRTY */ + + .text + .align PAGE_ALIGNED .code64 -relocate_new_kernel: - /* %rdi page_list - * %rsi reboot_code_buffer + .globl relocate_kernel +relocate_kernel: + /* %rdi indirection_page + * %rsi page_list * %rdx start address - * %rcx page_table - * %r8 arg5 - * %r9 arg6 + */ + + /* map the control page at its virtual address */ + + movq $0x0000ff8000000000, %r10 /* mask */ + mov $(39 - 3), %cl /* bits to shift */ + movq PTR(VA_CONTROL_PAGE)(%rsi), %r11 /* address to map */ + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PGD)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_PUD_0)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + shrq $9, %r10 + sub $9, %cl + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PUD_0)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_PMD_0)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + shrq $9, %r10 + sub $9, %cl + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PMD_0)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_PTE_0)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + shrq $9, %r10 + sub $9, %cl + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PTE_0)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_CONTROL_PAGE)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + /* identity map the control page at its physical address */ + + movq $0x0000ff8000000000, %r10 /* mask */ + mov $(39 - 3), %cl /* bits to shift */ + movq PTR(PA_CONTROL_PAGE)(%rsi), %r11 /* address to map */ + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PGD)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_PUD_1)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + shrq $9, %r10 + sub $9, %cl + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PUD_1)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_PMD_1)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + shrq $9, %r10 + sub $9, %cl + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PMD_1)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_PTE_1)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + + shrq $9, %r10 + sub $9, %cl + + movq %r11, %r9 + andq %r10, %r9 + shrq %cl, %r9 + + movq PTR(VA_PTE_1)(%rsi), %r8 + addq %r8, %r9 + movq PTR(PA_CONTROL_PAGE)(%rsi), %r8 + orq $PAGE_ATTR, %r8 + movq %r8, (%r9) + +relocate_new_kernel: + /* %rdi indirection_page + * %rsi page_list + * %rdx start address */ /* zero out flags, and disable interrupts */ pushq $0 popfq - /* set a new stack at the bottom of our page... */ - lea 4096(%rsi), %rsp + /* get physical address of control page now */ + /* this is impossible after page table switch */ + movq PTR(PA_CONTROL_PAGE)(%rsi), %r8 - /* store the parameters back on the stack */ - pushq %rdx /* store the start address */ + /* get physical address of page table now too */ + movq PTR(PA_TABLE_PAGE)(%rsi), %rcx + + /* switch to new set of page tables */ + movq PTR(PA_PGD)(%rsi), %r9 + movq %r9, %cr3 + + /* setup a new stack at the end of the physical control page */ + lea 4096(%r8), %rsp + + /* jump to identity mapped page */ + addq $(identity_mapped - relocate_kernel), %r8 + pushq %r8 + ret + +identity_mapped: + /* store the start address on the stack */ + pushq %rdx /* Set cr0 to a known state: * 31 1 == Paging enabled @@ -136,8 +274,3 @@ xorq %r15, %r15 ret -relocate_new_kernel_end: - - .globl relocate_new_kernel_size -relocate_new_kernel_size: - .quad relocate_new_kernel_end - relocate_new_kernel
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 34afad7..0b00bb2 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c
@@ -74,16 +74,6 @@ unsigned long mmu_cr4_features; -int acpi_disabled; -EXPORT_SYMBOL(acpi_disabled); -#ifdef CONFIG_ACPI -extern int __initdata acpi_ht; -extern acpi_interrupt_flags acpi_sci_flags; -int __initdata acpi_force = 0; -#endif - -int acpi_numa __initdata; - /* Boot loader ID as an integer, for the benefit of proc_dointvec */ int bootloader_type; @@ -107,7 +97,6 @@ struct edid_info edid_info; EXPORT_SYMBOL_GPL(edid_info); -struct e820map e820; extern int root_mountflags; @@ -276,184 +265,21 @@ } } -/* Check for full argument with no trailing characters */ -static int fullarg(char *p, char *arg) -{ - int l = strlen(arg); - return !memcmp(p, arg, l) && (p[l] == 0 || isspace(p[l])); -} - -static __init void parse_cmdline_early (char ** cmdline_p) -{ - char c = ' ', *to = command_line, *from = COMMAND_LINE; - int len = 0; - int userdef = 0; - - for (;;) { - if (c != ' ') - goto next_char; - -#ifdef CONFIG_SMP - /* - * If the BIOS enumerates physical processors before logical, - * maxcpus=N at enumeration-time can be used to disable HT. - */ - else if (!memcmp(from, "maxcpus=", 8)) { - extern unsigned int maxcpus; - - maxcpus = simple_strtoul(from + 8, NULL, 0); - } -#endif -#ifdef CONFIG_ACPI - /* "acpi=off" disables both ACPI table parsing and interpreter init */ - if (fullarg(from,"acpi=off")) - disable_acpi(); - - if (fullarg(from, "acpi=force")) { - /* add later when we do DMI horrors: */ - acpi_force = 1; - acpi_disabled = 0; - } - - /* acpi=ht just means: do ACPI MADT parsing - at bootup, but don't enable the full ACPI interpreter */ - if (fullarg(from, "acpi=ht")) { - if (!acpi_force) - disable_acpi(); - acpi_ht = 1; - } - else if (fullarg(from, "pci=noacpi")) - acpi_disable_pci(); - else if (fullarg(from, "acpi=noirq")) - acpi_noirq_set(); - - else if (fullarg(from, "acpi_sci=edge")) - acpi_sci_flags.trigger = 1; - else if (fullarg(from, "acpi_sci=level")) - acpi_sci_flags.trigger = 3; - else if (fullarg(from, "acpi_sci=high")) - acpi_sci_flags.polarity = 1; - else if (fullarg(from, "acpi_sci=low")) - acpi_sci_flags.polarity = 3; - - /* acpi=strict disables out-of-spec workarounds */ - else if (fullarg(from, "acpi=strict")) { - acpi_strict = 1; - } -#ifdef CONFIG_X86_IO_APIC - else if (fullarg(from, "acpi_skip_timer_override")) - acpi_skip_timer_override = 1; -#endif -#endif - - if (fullarg(from, "disable_timer_pin_1")) - disable_timer_pin_1 = 1; - if (fullarg(from, "enable_timer_pin_1")) - disable_timer_pin_1 = -1; - - if (fullarg(from, "nolapic") || fullarg(from, "disableapic")) { - clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability); - disable_apic = 1; - } - - if (fullarg(from, "noapic")) - skip_ioapic_setup = 1; - - if (fullarg(from,"apic")) { - skip_ioapic_setup = 0; - ioapic_force = 1; - } - - if (!memcmp(from, "mem=", 4)) - parse_memopt(from+4, &from); - - if (!memcmp(from, "memmap=", 7)) { - /* exactmap option is for used defined memory */ - if (!memcmp(from+7, "exactmap", 8)) { -#ifdef CONFIG_CRASH_DUMP - /* If we are doing a crash dump, we - * still need to know the real mem - * size before original memory map is - * reset. - */ - saved_max_pfn = e820_end_of_ram(); -#endif - from += 8+7; - end_pfn_map = 0; - e820.nr_map = 0; - userdef = 1; - } - else { - parse_memmapopt(from+7, &from); - userdef = 1; - } - } - -#ifdef CONFIG_NUMA - if (!memcmp(from, "numa=", 5)) - numa_setup(from+5); -#endif - - if (!memcmp(from,"iommu=",6)) { - iommu_setup(from+6); - } - - if (fullarg(from,"oops=panic")) - panic_on_oops = 1; - - if (!memcmp(from, "noexec=", 7)) - nonx_setup(from + 7); - -#ifdef CONFIG_KEXEC - /* crashkernel=size@addr specifies the location to reserve for - * a crash kernel. By reserving this memory we guarantee - * that linux never set's it up as a DMA target. - * Useful for holding code to do something appropriate - * after a kernel panic. - */ - else if (!memcmp(from, "crashkernel=", 12)) { - unsigned long size, base; - size = memparse(from+12, &from); - if (*from == '@') { - base = memparse(from+1, &from); - /* FIXME: Do I want a sanity check - * to validate the memory range? - */ - crashk_res.start = base; - crashk_res.end = base + size - 1; - } - } -#endif - #ifdef CONFIG_PROC_VMCORE - /* elfcorehdr= specifies the location of elf core header - * stored by the crashed kernel. This option will be passed - * by kexec loader to the capture kernel. - */ - else if(!memcmp(from, "elfcorehdr=", 11)) - elfcorehdr_addr = memparse(from+11, &from); -#endif - -#ifdef CONFIG_HOTPLUG_CPU - else if (!memcmp(from, "additional_cpus=", 16)) - setup_additional_cpus(from+16); -#endif - - next_char: - c = *(from++); - if (!c) - break; - if (COMMAND_LINE_SIZE <= ++len) - break; - *(to++) = c; - } - if (userdef) { - printk(KERN_INFO "user-defined physical RAM map:\n"); - e820_print_map("user"); - } - *to = '\0'; - *cmdline_p = command_line; +/* elfcorehdr= specifies the location of elf core header + * stored by the crashed kernel. This option will be passed + * by kexec loader to the capture kernel. + */ +static int __init setup_elfcorehdr(char *arg) +{ + char *end; + if (!arg) + return -EINVAL; + elfcorehdr_addr = memparse(arg, &end); + return end > arg ? 0 : -EINVAL; } +early_param("elfcorehdr", setup_elfcorehdr); +#endif #ifndef CONFIG_NUMA static void __init @@ -466,7 +292,8 @@ if (bootmap == -1L) panic("Cannot find bootmem map of size %ld\n",bootmap_size); bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn); - e820_bootmem_free(NODE_DATA(0), 0, end_pfn << PAGE_SHIFT); + e820_register_active_regions(0, start_pfn, end_pfn); + free_bootmem_with_active_regions(0, end_pfn); reserve_bootmem(bootmap, bootmap_size); } #endif @@ -521,6 +348,8 @@ void __init setup_arch(char **cmdline_p) { + printk(KERN_INFO "Command line: %s\n", saved_command_line); + ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV); screen_info = SCREEN_INFO; edid_info = EDID_INFO; @@ -547,16 +376,22 @@ data_resource.start = virt_to_phys(&_etext); data_resource.end = virt_to_phys(&_edata)-1; - parse_cmdline_early(cmdline_p); - early_identify_cpu(&boot_cpu_data); + strlcpy(command_line, saved_command_line, COMMAND_LINE_SIZE); + *cmdline_p = command_line; + + parse_early_param(); + + finish_e820_parsing(); + + e820_register_active_regions(0, 0, -1UL); /* * partially used pages are not usable - thus * we are rounding upwards: */ end_pfn = e820_end_of_ram(); - num_physpages = end_pfn; /* for pfn_valid */ + num_physpages = end_pfn; check_efer(); @@ -576,6 +411,14 @@ acpi_boot_table_init(); #endif + /* How many end-of-memory variables you have, grandma! */ + max_low_pfn = end_pfn; + max_pfn = end_pfn; + high_memory = (void *)__va(end_pfn * PAGE_SIZE - 1) + 1; + + /* Remove active ranges so rediscovery with NUMA-awareness happens */ + remove_all_active_ranges(); + #ifdef CONFIG_ACPI_NUMA /* * Parse SRAT to discover nodes. @@ -625,12 +468,10 @@ */ acpi_reserve_bootmem(); #endif -#ifdef CONFIG_X86_LOCAL_APIC /* * Find and reserve possible boot-time SMP configuration: */ find_smp_config(); -#endif #ifdef CONFIG_BLK_DEV_INITRD if (LOADER_TYPE && INITRD_START) { if (INITRD_START + INITRD_SIZE <= (end_pfn << PAGE_SHIFT)) { @@ -657,7 +498,9 @@ paging_init(); - check_ioapic(); +#ifdef CONFIG_PCI + early_quirks(); +#endif /* * set this early, so we dont allocate cpu0 @@ -674,14 +517,12 @@ init_cpu_to_node(); -#ifdef CONFIG_X86_LOCAL_APIC /* * get boot-time SMP configuration: */ if (smp_found_config) get_smp_config(); init_apic_mappings(); -#endif /* * Request address space for all standard RAM and ROM resources @@ -689,6 +530,7 @@ */ probe_roms(); e820_reserve_resources(); + e820_mark_nosave_regions(); request_resource(&iomem_resource, &video_ram_resource); @@ -838,7 +680,7 @@ #endif } -static void __init init_amd(struct cpuinfo_x86 *c) +static void __cpuinit init_amd(struct cpuinfo_x86 *c) { unsigned level; @@ -894,6 +736,12 @@ /* Fix cpuid4 emulation for more */ num_cache_leaves = 3; + + /* When there is only one core no need to synchronize RDTSC */ + if (num_possible_cpus() == 1) + set_bit(X86_FEATURE_SYNC_RDTSC, &c->x86_capability); + else + clear_bit(X86_FEATURE_SYNC_RDTSC, &c->x86_capability); } static void __cpuinit detect_ht(struct cpuinfo_x86 *c) @@ -975,8 +823,7 @@ node = first_node(node_online_map); numa_set_node(cpu, node); - if (acpi_numa > 0) - printk(KERN_INFO "CPU %d/%x -> Node %d\n", cpu, apicid, node); + printk(KERN_INFO "CPU %d/%x -> Node %d\n", cpu, apicid, node); #endif } @@ -1010,6 +857,8 @@ if ((c->x86 == 0xf && c->x86_model >= 0x03) || (c->x86 == 0x6 && c->x86_model >= 0x0e)) set_bit(X86_FEATURE_CONSTANT_TSC, &c->x86_capability); + if (c->x86 == 6) + set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability); set_bit(X86_FEATURE_SYNC_RDTSC, &c->x86_capability); c->x86_max_cores = intel_num_cpu_cores(c); @@ -1228,8 +1077,8 @@ /* Intel-defined (#2) */ "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est", - "tm2", NULL, "cid", NULL, NULL, "cx16", "xtpr", NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL, + NULL, NULL, "dca", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* VIA/Cyrix/Centaur-defined */
diff --git a/arch/x86_64/kernel/setup64.c b/arch/x86_64/kernel/setup64.c index 417de56..8c4b80f 100644 --- a/arch/x86_64/kernel/setup64.c +++ b/arch/x86_64/kernel/setup64.c
@@ -24,7 +24,7 @@ #include <asm/proto.h> #include <asm/sections.h> -char x86_boot_params[BOOT_PARAM_SIZE] __initdata = {0,}; +char x86_boot_params[BOOT_PARAM_SIZE] __initdata; cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE; @@ -46,8 +46,10 @@ on Enable(default) off Disable */ -int __init nonx_setup(char *str) +static int __init nonx_setup(char *str) { + if (!str) + return -EINVAL; if (!strncmp(str, "on", 2)) { __supported_pte_mask |= _PAGE_NX; do_not_nx = 0; @@ -55,9 +57,9 @@ do_not_nx = 1; __supported_pte_mask &= ~_PAGE_NX; } - return 1; + return 0; } -__setup("noexec=", nonx_setup); /* parsed early actually */ +early_param("noexec", nonx_setup); int force_personality32 = 0; @@ -93,12 +95,9 @@ #endif /* Copy section for each CPU (we discard the original) */ - size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES); -#ifdef CONFIG_MODULES - if (size < PERCPU_ENOUGH_ROOM) - size = PERCPU_ENOUGH_ROOM; -#endif + size = PERCPU_ENOUGH_ROOM; + printk(KERN_INFO "PERCPU: Allocating %lu bytes of per cpu data\n", size); for_each_cpu_mask (i, cpu_possible_map) { char *ptr; @@ -122,7 +121,10 @@ /* Setup up data that may be needed in __get_free_pages early */ asm volatile("movl %0,%%fs ; movl %0,%%gs" :: "r" (0)); + /* Memory clobbers used to order PDA accessed */ + mb(); wrmsrl(MSR_GS_BASE, pda); + mb(); pda->cpunumber = cpu; pda->irqcount = -1; @@ -178,6 +180,8 @@ } } +unsigned long kernel_eflags; + /* * cpu_init() initializes state that is per-CPU. Some data is already * initialized (naturally) in the bootstrap process, such as the GDT @@ -235,28 +239,17 @@ * set up and load the per-CPU TSS */ for (v = 0; v < N_EXCEPTION_STACKS; v++) { + static const unsigned int order[N_EXCEPTION_STACKS] = { + [0 ... N_EXCEPTION_STACKS - 1] = EXCEPTION_STACK_ORDER, + [DEBUG_STACK - 1] = DEBUG_STACK_ORDER + }; if (cpu) { - static const unsigned int order[N_EXCEPTION_STACKS] = { - [0 ... N_EXCEPTION_STACKS - 1] = EXCEPTION_STACK_ORDER, - [DEBUG_STACK - 1] = DEBUG_STACK_ORDER - }; - estacks = (char *)__get_free_pages(GFP_ATOMIC, order[v]); if (!estacks) panic("Cannot allocate exception stack %ld %d\n", v, cpu); } - switch (v + 1) { -#if DEBUG_STKSZ > EXCEPTION_STKSZ - case DEBUG_STACK: - cpu_pda(cpu)->debugstack = (unsigned long)estacks; - estacks += DEBUG_STKSZ; - break; -#endif - default: - estacks += EXCEPTION_STKSZ; - break; - } + estacks += PAGE_SIZE << order[v]; orig_ist->ist[v] = t->ist[v] = (unsigned long)estacks; } @@ -290,4 +283,6 @@ set_debugreg(0UL, 7); fpu_init(); + + raw_local_save_flags(kernel_eflags); }
diff --git a/arch/x86_64/kernel/signal.c b/arch/x86_64/kernel/signal.c index 2816117..49ec324 100644 --- a/arch/x86_64/kernel/signal.c +++ b/arch/x86_64/kernel/signal.c
@@ -38,37 +38,6 @@ sigset_t *set, struct pt_regs * regs); asmlinkage long -sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize, struct pt_regs *regs) -{ - sigset_t saveset, newset; - - /* XXX: Don't preclude handling different sized sigset_t's. */ - if (sigsetsize != sizeof(sigset_t)) - return -EINVAL; - - if (copy_from_user(&newset, unewset, sizeof(newset))) - return -EFAULT; - sigdelsetmask(&newset, ~_BLOCKABLE); - - spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); -#ifdef DEBUG_SIG - printk("rt_sigsuspend savset(%lx) newset(%lx) regs(%p) rip(%lx)\n", - saveset, newset, regs, regs->rip); -#endif - regs->rax = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(regs, &saveset)) - return -EINTR; - } -} - -asmlinkage long sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss, struct pt_regs *regs) { @@ -308,11 +277,6 @@ #endif /* Set up registers for signal handler */ - { - struct exec_domain *ed = current_thread_info()->exec_domain; - if (unlikely(ed && ed->signal_invmap && sig < 32)) - sig = ed->signal_invmap[sig]; - } regs->rdi = sig; /* In case the signal handler was declared without prototypes */ regs->rax = 0; @@ -341,11 +305,11 @@ current->comm, current->pid, frame, regs->rip, frame->pretcode); #endif - return 1; + return 0; give_sigsegv: force_sigsegv(sig, current); - return 0; + return -EFAULT; } /* @@ -408,7 +372,7 @@ #endif ret = setup_rt_frame(sig, ka, info, oldset, regs); - if (ret) { + if (ret == 0) { spin_lock_irq(¤t->sighand->siglock); sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); if (!(ka->sa.sa_flags & SA_NODEFER)) @@ -425,11 +389,12 @@ * want to handle. Thus you cannot kill init even with a SIGKILL even by * mistake. */ -int do_signal(struct pt_regs *regs, sigset_t *oldset) +static void do_signal(struct pt_regs *regs) { struct k_sigaction ka; siginfo_t info; int signr; + sigset_t *oldset; /* * We want the common case to go fast, which @@ -438,9 +403,11 @@ * if so. */ if (!user_mode(regs)) - return 1; + return; - if (!oldset) + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + oldset = ¤t->saved_sigmask; + else oldset = ¤t->blocked; signr = get_signal_to_deliver(&info, &ka, regs, NULL); @@ -454,30 +421,46 @@ set_debugreg(current->thread.debugreg7, 7); /* Whee! Actually deliver the signal. */ - return handle_signal(signr, &info, &ka, oldset, regs); + if (handle_signal(signr, &info, &ka, oldset, regs) == 0) { + /* a signal was successfully delivered; the saved + * sigmask will have been stored in the signal frame, + * and will be restored by sigreturn, so we can simply + * clear the TIF_RESTORE_SIGMASK flag */ + clear_thread_flag(TIF_RESTORE_SIGMASK); + } + return; } /* Did we come from a system call? */ if ((long)regs->orig_rax >= 0) { /* Restart the system call - no handlers present */ long res = regs->rax; - if (res == -ERESTARTNOHAND || - res == -ERESTARTSYS || - res == -ERESTARTNOINTR) { + switch (res) { + case -ERESTARTNOHAND: + case -ERESTARTSYS: + case -ERESTARTNOINTR: regs->rax = regs->orig_rax; regs->rip -= 2; - } - if (regs->rax == (unsigned long)-ERESTART_RESTARTBLOCK) { + break; + case -ERESTART_RESTARTBLOCK: regs->rax = test_thread_flag(TIF_IA32) ? __NR_ia32_restart_syscall : __NR_restart_syscall; regs->rip -= 2; + break; } } - return 0; + + /* if there's no signal to deliver, we just put the saved sigmask + back. */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) { + clear_thread_flag(TIF_RESTORE_SIGMASK); + sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + } } -void do_notify_resume(struct pt_regs *regs, sigset_t *oldset, __u32 thread_info_flags) +void +do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags) { #ifdef DEBUG_SIG printk("do_notify_resume flags:%x rip:%lx rsp:%lx caller:%lx pending:%lx\n", @@ -491,8 +474,8 @@ } /* deal with pending signal delivery */ - if (thread_info_flags & _TIF_SIGPENDING) - do_signal(regs,oldset); + if (thread_info_flags & (_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK)) + do_signal(regs); } void signal_fault(struct pt_regs *regs, void __user *frame, char *where)
diff --git a/arch/x86_64/kernel/smp.c b/arch/x86_64/kernel/smp.c index 06af6ca..4f67697 100644 --- a/arch/x86_64/kernel/smp.c +++ b/arch/x86_64/kernel/smp.c
@@ -522,26 +522,3 @@ } } -int safe_smp_processor_id(void) -{ - unsigned apicid, i; - - if (disable_apic) - return 0; - - apicid = hard_smp_processor_id(); - if (apicid < NR_CPUS && x86_cpu_to_apicid[apicid] == apicid) - return apicid; - - for (i = 0; i < NR_CPUS; ++i) { - if (x86_cpu_to_apicid[i] == apicid) - return i; - } - - /* No entries in x86_cpu_to_apicid? Either no MPS|ACPI, - * or called too early. Either way, we must be CPU 0. */ - if (x86_cpu_to_apicid[0] == BAD_APICID) - return 0; - - return 0; /* Should not happen */ -}
diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index 9753802..7b7a687 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c
@@ -46,9 +46,10 @@ #include <linux/bootmem.h> #include <linux/thread_info.h> #include <linux/module.h> - #include <linux/delay.h> #include <linux/mc146818rtc.h> +#include <linux/smp.h> + #include <asm/mtrr.h> #include <asm/pgalloc.h> #include <asm/desc.h> @@ -1090,7 +1091,6 @@ /* * Switch from PIC to APIC mode. */ - connect_bsp_APIC(); setup_local_APIC(); if (GET_APIC_ID(apic_read(APIC_ID)) != boot_cpu_id) { @@ -1175,12 +1175,9 @@ void __init smp_cpus_done(unsigned int max_cpus) { smp_cleanup_boot(); - -#ifdef CONFIG_X86_IO_APIC setup_ioapic_dest(); -#endif - check_nmi_watchdog(); + time_init_gtod(); } #ifdef CONFIG_HOTPLUG_CPU @@ -1233,6 +1230,8 @@ if (cpu == 0) return -EBUSY; + if (nmi_watchdog == NMI_LOCAL_APIC) + stop_apic_nmi_watchdog(NULL); clear_local_APIC(); /* @@ -1272,11 +1271,11 @@ printk(KERN_ERR "CPU %u didn't die...\n", cpu); } -__init int setup_additional_cpus(char *s) +static __init int setup_additional_cpus(char *s) { - return get_option(&s, &additional_cpus); + return s && get_option(&s, &additional_cpus) ? 0 : -EINVAL; } -__setup("additional_cpus=", setup_additional_cpus); +early_param("additional_cpus", setup_additional_cpus); #else /* ... !CONFIG_HOTPLUG_CPU */
diff --git a/arch/x86_64/kernel/stacktrace.c b/arch/x86_64/kernel/stacktrace.c index 32cf55e..6026b31 100644 --- a/arch/x86_64/kernel/stacktrace.c +++ b/arch/x86_64/kernel/stacktrace.c
@@ -7,215 +7,49 @@ */ #include <linux/sched.h> #include <linux/stacktrace.h> +#include <linux/module.h> +#include <asm/stacktrace.h> -#include <asm/smp.h> - -static inline int -in_range(unsigned long start, unsigned long addr, unsigned long end) +static void save_stack_warning(void *data, char *msg) { - return addr >= start && addr <= end; } -static unsigned long -get_stack_end(struct task_struct *task, unsigned long stack) +static void +save_stack_warning_symbol(void *data, char *msg, unsigned long symbol) { - unsigned long stack_start, stack_end, flags; - int i, cpu; - - /* - * The most common case is that we are in the task stack: - */ - stack_start = (unsigned long)task->thread_info; - stack_end = stack_start + THREAD_SIZE; - - if (in_range(stack_start, stack, stack_end)) - return stack_end; - - /* - * We are in an interrupt if irqstackptr is set: - */ - raw_local_irq_save(flags); - cpu = safe_smp_processor_id(); - stack_end = (unsigned long)cpu_pda(cpu)->irqstackptr; - - if (stack_end) { - stack_start = stack_end & ~(IRQSTACKSIZE-1); - if (in_range(stack_start, stack, stack_end)) - goto out_restore; - /* - * We get here if we are in an IRQ context but we - * are also in an exception stack. - */ - } - - /* - * Iterate over all exception stacks, and figure out whether - * 'stack' is in one of them: - */ - for (i = 0; i < N_EXCEPTION_STACKS; i++) { - /* - * set 'end' to the end of the exception stack. - */ - stack_end = per_cpu(init_tss, cpu).ist[i]; - stack_start = stack_end - EXCEPTION_STKSZ; - - /* - * Is 'stack' above this exception frame's end? - * If yes then skip to the next frame. - */ - if (stack >= stack_end) - continue; - /* - * Is 'stack' above this exception frame's start address? - * If yes then we found the right frame. - */ - if (stack >= stack_start) - goto out_restore; - - /* - * If this is a debug stack, and if it has a larger size than - * the usual exception stacks, then 'stack' might still - * be within the lower portion of the debug stack: - */ -#if DEBUG_STKSZ > EXCEPTION_STKSZ - if (i == DEBUG_STACK - 1 && stack >= stack_end - DEBUG_STKSZ) { - /* - * Black magic. A large debug stack is composed of - * multiple exception stack entries, which we - * iterate through now. Dont look: - */ - do { - stack_end -= EXCEPTION_STKSZ; - stack_start -= EXCEPTION_STKSZ; - } while (stack < stack_start); - - goto out_restore; - } -#endif - } - /* - * Ok, 'stack' is not pointing to any of the system stacks. - */ - stack_end = 0; - -out_restore: - raw_local_irq_restore(flags); - - return stack_end; } - -/* - * Save stack-backtrace addresses into a stack_trace buffer: - */ -static inline unsigned long -save_context_stack(struct stack_trace *trace, unsigned int skip, - unsigned long stack, unsigned long stack_end) +static int save_stack_stack(void *data, char *name) { - unsigned long addr; - -#ifdef CONFIG_FRAME_POINTER - unsigned long prev_stack = 0; - - while (in_range(prev_stack, stack, stack_end)) { - pr_debug("stack: %p\n", (void *)stack); - addr = (unsigned long)(((unsigned long *)stack)[1]); - pr_debug("addr: %p\n", (void *)addr); - if (!skip) - trace->entries[trace->nr_entries++] = addr-1; - else - skip--; - if (trace->nr_entries >= trace->max_entries) - break; - if (!addr) - return 0; - /* - * Stack frames must go forwards (otherwise a loop could - * happen if the stackframe is corrupted), so we move - * prev_stack forwards: - */ - prev_stack = stack; - stack = (unsigned long)(((unsigned long *)stack)[0]); - } - pr_debug("invalid: %p\n", (void *)stack); -#else - while (stack < stack_end) { - addr = ((unsigned long *)stack)[0]; - stack += sizeof(long); - if (__kernel_text_address(addr)) { - if (!skip) - trace->entries[trace->nr_entries++] = addr-1; - else - skip--; - if (trace->nr_entries >= trace->max_entries) - break; - } - } -#endif - return stack; + struct stack_trace *trace = (struct stack_trace *)data; + return trace->all_contexts ? 0 : -1; } -#define MAX_STACKS 10 +static void save_stack_address(void *data, unsigned long addr) +{ + struct stack_trace *trace = (struct stack_trace *)data; + if (trace->skip > 0) { + trace->skip--; + return; + } + if (trace->nr_entries < trace->max_entries - 1) + trace->entries[trace->nr_entries++] = addr; +} + +static struct stacktrace_ops save_stack_ops = { + .warning = save_stack_warning, + .warning_symbol = save_stack_warning_symbol, + .stack = save_stack_stack, + .address = save_stack_address, +}; /* * Save stack-backtrace addresses into a stack_trace buffer. - * If all_contexts is set, all contexts (hardirq, softirq and process) - * are saved. If not set then only the current context is saved. */ -void save_stack_trace(struct stack_trace *trace, - struct task_struct *task, int all_contexts, - unsigned int skip) +void save_stack_trace(struct stack_trace *trace, struct task_struct *task) { - unsigned long stack = (unsigned long)&stack; - int i, nr_stacks = 0, stacks_done[MAX_STACKS]; - - WARN_ON(trace->nr_entries || !trace->max_entries); - - if (!task) - task = current; - - pr_debug("task: %p, ti: %p\n", task, task->thread_info); - - if (!task || task == current) { - /* Grab rbp right from our regs: */ - asm ("mov %%rbp, %0" : "=r" (stack)); - pr_debug("rbp: %p\n", (void *)stack); - } else { - /* rbp is the last reg pushed by switch_to(): */ - stack = task->thread.rsp; - pr_debug("other task rsp: %p\n", (void *)stack); - stack = (unsigned long)(((unsigned long *)stack)[0]); - pr_debug("other task rbp: %p\n", (void *)stack); - } - - while (1) { - unsigned long stack_end = get_stack_end(task, stack); - - pr_debug("stack: %p\n", (void *)stack); - pr_debug("stack end: %p\n", (void *)stack_end); - - /* - * Invalid stack addres? - */ - if (!stack_end) - return; - /* - * Were we in this stack already? (recursion) - */ - for (i = 0; i < nr_stacks; i++) - if (stacks_done[i] == stack_end) - return; - stacks_done[nr_stacks] = stack_end; - - stack = save_context_stack(trace, skip, stack, stack_end); - if (!all_contexts || !stack || - trace->nr_entries >= trace->max_entries) - return; - trace->entries[trace->nr_entries++] = ULONG_MAX; - if (trace->nr_entries >= trace->max_entries) - return; - if (++nr_stacks >= MAX_STACKS) - return; - } + dump_trace(task, NULL, NULL, &save_stack_ops, trace); + trace->entries[trace->nr_entries++] = ULONG_MAX; } +EXPORT_SYMBOL(save_stack_trace);
diff --git a/arch/x86_64/kernel/suspend_asm.S b/arch/x86_64/kernel/suspend_asm.S index 320b6fb..bfbe007 100644 --- a/arch/x86_64/kernel/suspend_asm.S +++ b/arch/x86_64/kernel/suspend_asm.S
@@ -54,7 +54,7 @@ movq %rcx, %cr3; movq %rax, %cr4; # turn PGE back on - movq pagedir_nosave(%rip), %rdx + movq restore_pblist(%rip), %rdx loop: testq %rdx, %rdx jz done
diff --git a/arch/x86_64/kernel/tce.c b/arch/x86_64/kernel/tce.c index 5530dda..cbabfdf 100644 --- a/arch/x86_64/kernel/tce.c +++ b/arch/x86_64/kernel/tce.c
@@ -1,4 +1,6 @@ /* + * This file manages the translation entries for the IBM Calgary IOMMU. + * * Derived from arch/powerpc/platforms/pseries/iommu.c * * Copyright (C) IBM Corporation, 2006 @@ -104,14 +106,6 @@ /* set the tce table size - measured in entries */ tbl->it_size = table_size_to_number_of_entries(specified_table_size); - tbl->it_base = (unsigned long)tce_table_kva[dev->bus->number]; - if (!tbl->it_base) { - printk(KERN_ERR "Calgary: iommu_table_setparms: " - "no table allocated?!\n"); - ret = -ENOMEM; - goto done; - } - /* * number of bytes needed for the bitmap size in number of * entries; we need one bit per entry @@ -160,8 +154,6 @@ if (ret) goto free_tbl; - tce_free(tbl, 0, tbl->it_size); - tbl->bbar = bbar; /*
diff --git a/arch/x86_64/kernel/time.c b/arch/x86_64/kernel/time.c index 7a9b182..1c255ee 100644 --- a/arch/x86_64/kernel/time.c +++ b/arch/x86_64/kernel/time.c
@@ -24,6 +24,8 @@ #include <linux/device.h> #include <linux/sysdev.h> #include <linux/bcd.h> +#include <linux/notifier.h> +#include <linux/cpu.h> #include <linux/kallsyms.h> #include <linux/acpi.h> #ifdef CONFIG_ACPI @@ -39,9 +41,7 @@ #include <asm/sections.h> #include <linux/cpufreq.h> #include <linux/hpet.h> -#ifdef CONFIG_X86_LOCAL_APIC #include <asm/apic.h> -#endif #ifdef CONFIG_CPU_FREQ static void cpufreq_delayed_get(void); @@ -49,7 +49,7 @@ extern void i8254_timer_resume(void); extern int using_apic_timer; -static char *time_init_gtod(void); +static char *timename = NULL; DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL(rtc_lock); @@ -187,20 +187,15 @@ { unsigned long pc = instruction_pointer(regs); - /* Assume the lock function has either no stack frame or only a single - word. This checks if the address on the stack looks like a kernel - text address. - There is a small window for false hits, but in that case the tick - is just accounted to the spinlock function. - Better would be to write these functions in assembler again - and check exactly. */ + /* Assume the lock function has either no stack frame or a copy + of eflags from PUSHF + Eflags always has bits 22 and up cleared unlike kernel addresses. */ if (!user_mode(regs) && in_lock_functions(pc)) { - char *v = *(char **)regs->rsp; - if ((v >= _stext && v <= _etext) || - (v >= _sinittext && v <= _einittext) || - (v >= (char *)MODULES_VADDR && v <= (char *)MODULES_END)) - return (unsigned long)v; - return ((unsigned long *)regs->rsp)[1]; + unsigned long *sp = (unsigned long *)regs->rsp; + if (sp[0] >> 22) + return sp[0]; + if (sp[1] >> 22) + return sp[1]; } return pc; } @@ -281,6 +276,7 @@ * Note: This function is required to return accurate * time even in the absence of multiple timer ticks. */ +static inline unsigned long long cycles_2_ns(unsigned long long cyc); unsigned long long monotonic_clock(void) { unsigned long seq; @@ -305,8 +301,7 @@ base = monotonic_base; } while (read_seqretry(&xtime_lock, seq)); this_offset = get_cycles_sync(); - /* FIXME: 1000 or 1000000? */ - offset = (this_offset - last_offset)*1000 / cpu_khz; + offset = cycles_2_ns(this_offset - last_offset); } return base + offset; } @@ -410,8 +405,7 @@ offset %= USEC_PER_TICK; } - /* FIXME: 1000 or 1000000? */ - monotonic_base += (tsc - vxtime.last_tsc) * 1000000 / cpu_khz; + monotonic_base += cycles_2_ns(tsc - vxtime.last_tsc); vxtime.last_tsc = tsc - vxtime.quot * delay / vxtime.tsc_quot; @@ -441,12 +435,8 @@ * have to call the local interrupt handler. */ -#ifndef CONFIG_X86_LOCAL_APIC - profile_tick(CPU_PROFILING, regs); -#else if (!using_apic_timer) smp_local_timer_interrupt(regs); -#endif /* * If we have an externally synchronized Linux clock, then update CMOS clock @@ -470,10 +460,8 @@ if (apic_runs_main_timer > 1) return IRQ_HANDLED; main_timer_handler(regs); -#ifdef CONFIG_X86_LOCAL_APIC if (using_apic_timer) smp_send_timer_broadcast_ipi(); -#endif return IRQ_HANDLED; } @@ -893,11 +881,17 @@ timer_interrupt, IRQF_DISABLED, CPU_MASK_NONE, "timer", NULL, NULL }; +static int __cpuinit +time_cpu_notifier(struct notifier_block *nb, unsigned long action, void *hcpu) +{ + unsigned cpu = (unsigned long) hcpu; + if (action == CPU_ONLINE) + vsyscall_set_cpu(cpu); + return NOTIFY_DONE; +} + void __init time_init(void) { - char *timename; - char *gtod; - if (nohpet) vxtime.hpet_address = 0; @@ -931,18 +925,17 @@ } vxtime.mode = VXTIME_TSC; - gtod = time_init_gtod(); - - printk(KERN_INFO "time.c: Using %ld.%06ld MHz WALL %s GTOD %s timer.\n", - vxtime_hz / 1000000, vxtime_hz % 1000000, timename, gtod); - printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n", - cpu_khz / 1000, cpu_khz % 1000); vxtime.quot = (USEC_PER_SEC << US_SCALE) / vxtime_hz; vxtime.tsc_quot = (USEC_PER_MSEC << US_SCALE) / cpu_khz; vxtime.last_tsc = get_cycles_sync(); - setup_irq(0, &irq0); - set_cyc2ns_scale(cpu_khz); + setup_irq(0, &irq0); + hotcpu_notifier(time_cpu_notifier, 0); + time_cpu_notifier(NULL, CPU_ONLINE, (void *)(long)smp_processor_id()); + +#ifndef CONFIG_SMP + time_init_gtod(); +#endif } /* @@ -973,12 +966,18 @@ /* * Decide what mode gettimeofday should use. */ -__init static char *time_init_gtod(void) +void time_init_gtod(void) { char *timetype; if (unsynchronized_tsc()) notsc = 1; + + if (cpu_has(&boot_cpu_data, X86_FEATURE_RDTSCP)) + vgetcpu_mode = VGETCPU_RDTSCP; + else + vgetcpu_mode = VGETCPU_LSL; + if (vxtime.hpet_address && notsc) { timetype = hpet_use_timer ? "HPET" : "PIT/HPET"; if (hpet_use_timer) @@ -1001,7 +1000,16 @@ timetype = hpet_use_timer ? "HPET/TSC" : "PIT/TSC"; vxtime.mode = VXTIME_TSC; } - return timetype; + + printk(KERN_INFO "time.c: Using %ld.%06ld MHz WALL %s GTOD %s timer.\n", + vxtime_hz / 1000000, vxtime_hz % 1000000, timename, timetype); + printk(KERN_INFO "time.c: Detected %d.%03d MHz processor.\n", + cpu_khz / 1000, cpu_khz % 1000); + vxtime.quot = (USEC_PER_SEC << US_SCALE) / vxtime_hz; + vxtime.tsc_quot = (USEC_PER_MSEC << US_SCALE) / cpu_khz; + vxtime.last_tsc = get_cycles_sync(); + + set_cyc2ns_scale(cpu_khz); } __setup("report_lost_ticks", time_setup); @@ -1031,8 +1039,16 @@ unsigned long flags; unsigned long sec; unsigned long ctime = get_cmos_time(); - unsigned long sleep_length = (ctime - sleep_start) * HZ; + long sleep_length = (ctime - sleep_start) * HZ; + if (sleep_length < 0) { + printk(KERN_WARNING "Time skew detected in timer resume!\n"); + /* The time after the resume must not be earlier than the time + * before the suspend or some nasty things will happen + */ + sleep_length = 0; + ctime = sleep_start; + } if (vxtime.hpet_address) hpet_reenable(); else @@ -1148,23 +1164,25 @@ hpet_rtc_int_freq = DEFAULT_RTC_INT_FREQ; local_irq_save(flags); + cnt = hpet_readl(HPET_COUNTER); cnt += ((hpet_tick*HZ)/hpet_rtc_int_freq); hpet_writel(cnt, HPET_T1_CMP); hpet_t1_cmp = cnt; - local_irq_restore(flags); cfg = hpet_readl(HPET_T1_CFG); cfg &= ~HPET_TN_PERIODIC; cfg |= HPET_TN_ENABLE | HPET_TN_32BIT; hpet_writel(cfg, HPET_T1_CFG); + local_irq_restore(flags); + return 1; } static void hpet_rtc_timer_reinit(void) { - unsigned int cfg, cnt; + unsigned int cfg, cnt, ticks_per_int, lost_ints; if (unlikely(!(PIE_on | AIE_on | UIE_on))) { cfg = hpet_readl(HPET_T1_CFG); @@ -1179,10 +1197,33 @@ hpet_rtc_int_freq = DEFAULT_RTC_INT_FREQ; /* It is more accurate to use the comparator value than current count.*/ - cnt = hpet_t1_cmp; - cnt += hpet_tick*HZ/hpet_rtc_int_freq; - hpet_writel(cnt, HPET_T1_CMP); - hpet_t1_cmp = cnt; + ticks_per_int = hpet_tick * HZ / hpet_rtc_int_freq; + hpet_t1_cmp += ticks_per_int; + hpet_writel(hpet_t1_cmp, HPET_T1_CMP); + + /* + * If the interrupt handler was delayed too long, the write above tries + * to schedule the next interrupt in the past and the hardware would + * not interrupt until the counter had wrapped around. + * So we have to check that the comparator wasn't set to a past time. + */ + cnt = hpet_readl(HPET_COUNTER); + if (unlikely((int)(cnt - hpet_t1_cmp) > 0)) { + lost_ints = (cnt - hpet_t1_cmp) / ticks_per_int + 1; + /* Make sure that, even with the time needed to execute + * this code, the next scheduled interrupt has been moved + * back to the future: */ + lost_ints++; + + hpet_t1_cmp += lost_ints * ticks_per_int; + hpet_writel(hpet_t1_cmp, HPET_T1_CMP); + + if (PIE_on) + PIE_count += lost_ints; + + printk(KERN_WARNING "rtc: lost some interrupts at %ldHz.\n", + hpet_rtc_int_freq); + } } /*
diff --git a/arch/x86_64/kernel/trampoline.S b/arch/x86_64/kernel/trampoline.S index 23a03eb9..c79b99a 100644 --- a/arch/x86_64/kernel/trampoline.S +++ b/arch/x86_64/kernel/trampoline.S
@@ -64,7 +64,7 @@ .word 0, 0 # idt base = 0L gdt_48: - .short __KERNEL32_CS + 7 # gdt limit + .short GDT_ENTRIES*8 - 1 # gdt limit .long cpu_gdt_table-__START_KERNEL_map .globl trampoline_end
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index b124977..01f2a8d 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c
@@ -45,6 +45,7 @@ #include <asm/pda.h> #include <asm/proto.h> #include <asm/nmi.h> +#include <asm/stacktrace.h> asmlinkage void divide_error(void); asmlinkage void debug(void); @@ -142,7 +143,7 @@ #endif static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack, - unsigned *usedp, const char **idp) + unsigned *usedp, char **idp) { static char ids[][8] = { [DEBUG_STACK - 1] = "#DB", @@ -161,26 +162,7 @@ * 'stack' is in one of them: */ for (k = 0; k < N_EXCEPTION_STACKS; k++) { - unsigned long end; - - /* - * set 'end' to the end of the exception stack. - */ - switch (k + 1) { - /* - * TODO: this block is not needed i think, because - * setup64.c:cpu_init() sets up t->ist[DEBUG_STACK] - * properly too. - */ -#if DEBUG_STKSZ > EXCEPTION_STKSZ - case DEBUG_STACK: - end = cpu_pda(cpu)->debugstack + DEBUG_STKSZ; - break; -#endif - default: - end = per_cpu(orig_ist, cpu).ist[k]; - break; - } + unsigned long end = per_cpu(orig_ist, cpu).ist[k]; /* * Is 'stack' above this exception frame's end? * If yes then skip to the next frame. @@ -234,13 +216,19 @@ return NULL; } -static int show_trace_unwind(struct unwind_frame_info *info, void *context) +struct ops_and_data { + struct stacktrace_ops *ops; + void *data; +}; + +static int dump_trace_unwind(struct unwind_frame_info *info, void *context) { + struct ops_and_data *oad = (struct ops_and_data *)context; int n = 0; while (unwind(info) == 0 && UNW_PC(info)) { n++; - printk_address(UNW_PC(info)); + oad->ops->address(oad->data, UNW_PC(info)); if (arch_unw_user_mode(info)) break; } @@ -254,45 +242,53 @@ * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack */ -void show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * stack) +void dump_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long * stack, + struct stacktrace_ops *ops, void *data) { - const unsigned cpu = safe_smp_processor_id(); + const unsigned cpu = smp_processor_id(); unsigned long *irqstack_end = (unsigned long *)cpu_pda(cpu)->irqstackptr; unsigned used = 0; - printk("\nCall Trace:\n"); - if (!tsk) tsk = current; if (call_trace >= 0) { int unw_ret = 0; struct unwind_frame_info info; + struct ops_and_data oad = { .ops = ops, .data = data }; if (regs) { if (unwind_init_frame_info(&info, tsk, regs) == 0) - unw_ret = show_trace_unwind(&info, NULL); + unw_ret = dump_trace_unwind(&info, &oad); } else if (tsk == current) - unw_ret = unwind_init_running(&info, show_trace_unwind, NULL); + unw_ret = unwind_init_running(&info, dump_trace_unwind, &oad); else { if (unwind_init_blocked(&info, tsk) == 0) - unw_ret = show_trace_unwind(&info, NULL); + unw_ret = dump_trace_unwind(&info, &oad); } if (unw_ret > 0) { if (call_trace == 1 && !arch_unw_user_mode(&info)) { - print_symbol("DWARF2 unwinder stuck at %s\n", + ops->warning_symbol(data, "DWARF2 unwinder stuck at %s\n", UNW_PC(&info)); if ((long)UNW_SP(&info) < 0) { - printk("Leftover inexact backtrace:\n"); + ops->warning(data, "Leftover inexact backtrace:\n"); stack = (unsigned long *)UNW_SP(&info); + if (!stack) + return; } else - printk("Full inexact backtrace again:\n"); + ops->warning(data, "Full inexact backtrace again:\n"); } else if (call_trace >= 1) return; else - printk("Full inexact backtrace again:\n"); + ops->warning(data, "Full inexact backtrace again:\n"); } else - printk("Inexact backtrace:\n"); + ops->warning(data, "Inexact backtrace:\n"); + } + if (!stack) { + unsigned long dummy; + stack = &dummy; + if (tsk && tsk != current) + stack = (unsigned long *)tsk->thread.rsp; } /* @@ -303,7 +299,9 @@ #define HANDLE_STACK(cond) \ do while (cond) { \ unsigned long addr = *stack++; \ - if (kernel_text_address(addr)) { \ + if (oops_in_progress ? \ + __kernel_text_address(addr) : \ + kernel_text_address(addr)) { \ /* \ * If the address is either in the text segment of the \ * kernel, or in the region which contains vmalloc'ed \ @@ -312,7 +310,7 @@ * down the cause of the crash will be able to figure \ * out the call path that was taken. \ */ \ - printk_address(addr); \ + ops->address(data, addr); \ } \ } while (0) @@ -321,16 +319,17 @@ * current stack address. If the stacks consist of nested * exceptions */ - for ( ; ; ) { - const char *id; + for (;;) { + char *id; unsigned long *estack_end; estack_end = in_exception_stack(cpu, (unsigned long)stack, &used, &id); if (estack_end) { - printk(" <%s>", id); + if (ops->stack(data, id) < 0) + break; HANDLE_STACK (stack < estack_end); - printk(" <EOE>"); + ops->stack(data, "<EOE>"); /* * We link to the next stack via the * second-to-last pointer (index -2 to end) in the @@ -345,7 +344,8 @@ (IRQSTACKSIZE - 64) / sizeof(*irqstack); if (stack >= irqstack && stack < irqstack_end) { - printk(" <IRQ>"); + if (ops->stack(data, "IRQ") < 0) + break; HANDLE_STACK (stack < irqstack_end); /* * We link to the next stack (which would be @@ -354,7 +354,7 @@ */ stack = (unsigned long *) (irqstack_end[-1]); irqstack_end = NULL; - printk(" <EOI>"); + ops->stack(data, "EOI"); continue; } } @@ -362,19 +362,57 @@ } /* - * This prints the process stack: + * This handles the process stack: */ HANDLE_STACK (((long) stack & (THREAD_SIZE-1)) != 0); #undef HANDLE_STACK +} +EXPORT_SYMBOL(dump_trace); +static void +print_trace_warning_symbol(void *data, char *msg, unsigned long symbol) +{ + print_symbol(msg, symbol); printk("\n"); } -static void _show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long * rsp) +static void print_trace_warning(void *data, char *msg) +{ + printk("%s\n", msg); +} + +static int print_trace_stack(void *data, char *name) +{ + printk(" <%s> ", name); + return 0; +} + +static void print_trace_address(void *data, unsigned long addr) +{ + printk_address(addr); +} + +static struct stacktrace_ops print_trace_ops = { + .warning = print_trace_warning, + .warning_symbol = print_trace_warning_symbol, + .stack = print_trace_stack, + .address = print_trace_address, +}; + +void +show_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long *stack) +{ + printk("\nCall Trace:\n"); + dump_trace(tsk, regs, stack, &print_trace_ops, NULL); + printk("\n"); +} + +static void +_show_stack(struct task_struct *tsk, struct pt_regs *regs, unsigned long *rsp) { unsigned long *stack; int i; - const int cpu = safe_smp_processor_id(); + const int cpu = smp_processor_id(); unsigned long *irqstack_end = (unsigned long *) (cpu_pda(cpu)->irqstackptr); unsigned long *irqstack = (unsigned long *) (cpu_pda(cpu)->irqstackptr - IRQSTACKSIZE); @@ -428,7 +466,7 @@ int i; int in_kernel = !user_mode(regs); unsigned long rsp; - const int cpu = safe_smp_processor_id(); + const int cpu = smp_processor_id(); struct task_struct *cur = cpu_pda(cpu)->pcurrent; rsp = regs->rsp; @@ -503,9 +541,11 @@ unsigned __kprobes long oops_begin(void) { - int cpu = safe_smp_processor_id(); + int cpu = smp_processor_id(); unsigned long flags; + oops_enter(); + /* racy, but better than risking deadlock. */ local_irq_save(flags); if (!spin_trylock(&die_lock)) { @@ -534,6 +574,7 @@ spin_unlock_irqrestore(&die_lock, flags); if (panic_on_oops) panic("Fatal exception"); + oops_exit(); } void __kprobes __die(const char * str, struct pt_regs * regs, long err) @@ -570,7 +611,7 @@ do_exit(SIGSEGV); } -void __kprobes die_nmi(char *str, struct pt_regs *regs) +void __kprobes die_nmi(char *str, struct pt_regs *regs, int do_panic) { unsigned long flags = oops_begin(); @@ -578,13 +619,12 @@ * We are in trouble anyway, lets at least try * to get a message out. */ - printk(str, safe_smp_processor_id()); + printk(str, smp_processor_id()); show_registers(regs); if (kexec_should_crash(current)) crash_kexec(regs); - if (panic_on_timeout || panic_on_oops) - panic("nmi watchdog"); - printk("console shuts up ...\n"); + if (do_panic || panic_on_oops) + panic("Non maskable interrupt"); oops_end(flags); nmi_exit(); local_irq_enable(); @@ -730,8 +770,15 @@ static __kprobes void mem_parity_error(unsigned char reason, struct pt_regs * regs) { - printk("Uhhuh. NMI received. Dazed and confused, but trying to continue\n"); - printk("You probably have a hardware problem with your RAM chips\n"); + printk(KERN_EMERG "Uhhuh. NMI received for unknown reason %02x.\n", + reason); + printk(KERN_EMERG "You probably have a hardware problem with your " + "RAM chips\n"); + + if (panic_on_unrecovered_nmi) + panic("NMI: Not continuing"); + + printk(KERN_EMERG "Dazed and confused, but trying to continue\n"); /* Clear and disable the memory parity error line. */ reason = (reason & 0xf) | 4; @@ -754,9 +801,15 @@ static __kprobes void unknown_nmi_error(unsigned char reason, struct pt_regs * regs) -{ printk("Uhhuh. NMI received for unknown reason %02x.\n", reason); - printk("Dazed and confused, but trying to continue\n"); - printk("Do you have a strange power saving mode enabled?\n"); +{ + printk(KERN_EMERG "Uhhuh. NMI received for unknown reason %02x.\n", + reason); + printk(KERN_EMERG "Do you have a strange power saving mode enabled?\n"); + + if (panic_on_unrecovered_nmi) + panic("NMI: Not continuing"); + + printk(KERN_EMERG "Dazed and confused, but trying to continue\n"); } /* Runs on IST stack. This code must keep interrupts off all the time. @@ -776,17 +829,15 @@ if (notify_die(DIE_NMI_IPI, "nmi_ipi", regs, reason, 2, SIGINT) == NOTIFY_STOP) return; -#ifdef CONFIG_X86_LOCAL_APIC /* * Ok, so this is none of the documented NMI sources, * so it must be the NMI watchdog. */ - if (nmi_watchdog > 0) { - nmi_watchdog_tick(regs,reason); + if (nmi_watchdog_tick(regs,reason)) return; - } -#endif - unknown_nmi_error(reason, regs); + if (!do_nmi_callback(regs,cpu)) + unknown_nmi_error(reason, regs); + return; } if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP) @@ -1071,6 +1122,7 @@ init_fpu(me); restore_fpu_checking(&me->thread.i387.fxsave); task_thread_info(me)->status |= TS_USEDFPU; + me->fpu_counter++; } void __init trap_init(void) @@ -1109,24 +1161,30 @@ } -/* Actual parsing is done early in setup.c. */ -static int __init oops_dummy(char *s) +static int __init oops_setup(char *s) { - panic_on_oops = 1; - return 1; + if (!s) + return -EINVAL; + if (!strcmp(s, "panic")) + panic_on_oops = 1; + return 0; } -__setup("oops=", oops_dummy); +early_param("oops", oops_setup); static int __init kstack_setup(char *s) { + if (!s) + return -EINVAL; kstack_depth_to_print = simple_strtoul(s,NULL,0); - return 1; + return 0; } -__setup("kstack=", kstack_setup); +early_param("kstack", kstack_setup); #ifdef CONFIG_STACK_UNWIND static int __init call_trace_setup(char *s) { + if (!s) + return -EINVAL; if (strcmp(s, "old") == 0) call_trace = -1; else if (strcmp(s, "both") == 0) @@ -1135,7 +1193,7 @@ call_trace = 1; else if (strcmp(s, "new") == 0) call_trace = 2; - return 1; + return 0; } -__setup("call_trace=", call_trace_setup); +early_param("call_trace", call_trace_setup); #endif
diff --git a/arch/x86_64/kernel/vmlinux.lds.S b/arch/x86_64/kernel/vmlinux.lds.S index 7c4de31..d0564f1 100644 --- a/arch/x86_64/kernel/vmlinux.lds.S +++ b/arch/x86_64/kernel/vmlinux.lds.S
@@ -13,6 +13,12 @@ OUTPUT_ARCH(i386:x86-64) ENTRY(phys_startup_64) jiffies_64 = jiffies; +PHDRS { + text PT_LOAD FLAGS(5); /* R_E */ + data PT_LOAD FLAGS(7); /* RWE */ + user PT_LOAD FLAGS(7); /* RWE */ + note PT_NOTE FLAGS(4); /* R__ */ +} SECTIONS { . = __START_KERNEL; @@ -31,7 +37,7 @@ KPROBES_TEXT *(.fixup) *(.gnu.warning) - } = 0x9090 + } :text = 0x9090 /* out-of-line lock text */ .text.lock : AT(ADDR(.text.lock) - LOAD_OFFSET) { *(.text.lock) } @@ -57,7 +63,7 @@ .data : AT(ADDR(.data) - LOAD_OFFSET) { *(.data) CONSTRUCTORS - } + } :data _edata = .; /* End of data section */ @@ -89,7 +95,7 @@ #define VVIRT(x) (ADDR(x) - VVIRT_OFFSET) . = VSYSCALL_ADDR; - .vsyscall_0 : AT(VSYSCALL_PHYS_ADDR) { *(.vsyscall_0) } + .vsyscall_0 : AT(VSYSCALL_PHYS_ADDR) { *(.vsyscall_0) } :user __vsyscall_0 = VSYSCALL_VIRT_ADDR; . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); @@ -99,6 +105,9 @@ .vxtime : AT(VLOAD(.vxtime)) { *(.vxtime) } vxtime = VVIRT(.vxtime); + .vgetcpu_mode : AT(VLOAD(.vgetcpu_mode)) { *(.vgetcpu_mode) } + vgetcpu_mode = VVIRT(.vgetcpu_mode); + .wall_jiffies : AT(VLOAD(.wall_jiffies)) { *(.wall_jiffies) } wall_jiffies = VVIRT(.wall_jiffies); @@ -132,7 +141,7 @@ . = ALIGN(8192); /* init_task */ .data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET) { *(.data.init_task) - } + } :data . = ALIGN(4096); .data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET) { @@ -207,14 +216,12 @@ __initramfs_start = .; .init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) { *(.init.ramfs) } __initramfs_end = .; - /* temporary here to work around NR_CPUS. If you see this comment in 2.6.17+ - complain */ - . = ALIGN(4096); - __init_end = .; - . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); + . = ALIGN(CONFIG_X86_L1_CACHE_BYTES); __per_cpu_start = .; .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { *(.data.percpu) } __per_cpu_end = .; + . = ALIGN(4096); + __init_end = .; . = ALIGN(4096); __nosave_begin = .;
diff --git a/arch/x86_64/kernel/vsmp.c b/arch/x86_64/kernel/vsmp.c index 92f70c7..044e852 100644 --- a/arch/x86_64/kernel/vsmp.c +++ b/arch/x86_64/kernel/vsmp.c
@@ -20,6 +20,9 @@ void *address; unsigned int cap, ctl; + if (!early_pci_allowed()) + return 0; + /* Check if we are running on a ScaleMP vSMP box */ if ((read_pci_config_16(0, 0x1f, 0, PCI_VENDOR_ID) != PCI_VENDOR_ID_SCALEMP) || (read_pci_config_16(0, 0x1f, 0, PCI_DEVICE_ID) != PCI_DEVICE_ID_SCALEMP_VSMP_CTL))
diff --git a/arch/x86_64/kernel/vsyscall.c b/arch/x86_64/kernel/vsyscall.c index f603037..ac48c38 100644 --- a/arch/x86_64/kernel/vsyscall.c +++ b/arch/x86_64/kernel/vsyscall.c
@@ -26,6 +26,7 @@ #include <linux/seqlock.h> #include <linux/jiffies.h> #include <linux/sysctl.h> +#include <linux/getcpu.h> #include <asm/vsyscall.h> #include <asm/pgtable.h> @@ -33,11 +34,15 @@ #include <asm/fixmap.h> #include <asm/errno.h> #include <asm/io.h> +#include <asm/segment.h> +#include <asm/desc.h> +#include <asm/topology.h> #define __vsyscall(nr) __attribute__ ((unused,__section__(".vsyscall_" #nr))) int __sysctl_vsyscall __section_sysctl_vsyscall = 1; seqlock_t __xtime_lock __section_xtime_lock = SEQLOCK_UNLOCKED; +int __vgetcpu_mode __section_vgetcpu_mode; #include <asm/unistd.h> @@ -72,7 +77,8 @@ __vxtime.tsc_quot) >> 32; /* See comment in x86_64 do_gettimeofday. */ } else { - usec += ((readl((void *)fix_to_virt(VSYSCALL_HPET) + 0xf0) - + usec += ((readl((void __iomem *) + fix_to_virt(VSYSCALL_HPET) + 0xf0) - __vxtime.last) * __vxtime.quot) >> 32; } } while (read_seqretry(&__xtime_lock, sequence)); @@ -127,9 +133,46 @@ return __xtime.tv_sec; } -long __vsyscall(2) venosys_0(void) +/* Fast way to get current CPU and node. + This helps to do per node and per CPU caches in user space. + The result is not guaranteed without CPU affinity, but usually + works out because the scheduler tries to keep a thread on the same + CPU. + + tcache must point to a two element sized long array. + All arguments can be NULL. */ +long __vsyscall(2) +vgetcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache) { - return -ENOSYS; + unsigned int dummy, p; + unsigned long j = 0; + + /* Fast cache - only recompute value once per jiffies and avoid + relatively costly rdtscp/cpuid otherwise. + This works because the scheduler usually keeps the process + on the same CPU and this syscall doesn't guarantee its + results anyways. + We do this here because otherwise user space would do it on + its own in a likely inferior way (no access to jiffies). + If you don't like it pass NULL. */ + if (tcache && tcache->t0 == (j = __jiffies)) { + p = tcache->t1; + } else if (__vgetcpu_mode == VGETCPU_RDTSCP) { + /* Load per CPU data from RDTSCP */ + rdtscp(dummy, dummy, p); + } else { + /* Load per CPU data from GDT */ + asm("lsl %1,%0" : "=r" (p) : "r" (__PER_CPU_SEG)); + } + if (tcache) { + tcache->t0 = j; + tcache->t1 = p; + } + if (cpu) + *cpu = p & 0xfff; + if (node) + *node = p >> 12; + return 0; } long __vsyscall(3) venosys_1(void) @@ -149,7 +192,8 @@ void __user *buffer, size_t *lenp, loff_t *ppos) { extern u16 vsysc1, vsysc2; - u16 *map1, *map2; + u16 __iomem *map1; + u16 __iomem *map2; int ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos); if (!write) return ret; @@ -164,11 +208,11 @@ goto out; } if (!sysctl_vsyscall) { - *map1 = SYSCALL; - *map2 = SYSCALL; + writew(SYSCALL, map1); + writew(SYSCALL, map2); } else { - *map1 = NOP2; - *map2 = NOP2; + writew(NOP2, map1); + writew(NOP2, map2); } iounmap(map2); out: @@ -200,6 +244,43 @@ #endif +static void __cpuinit write_rdtscp_cb(void *info) +{ + write_rdtscp_aux((unsigned long)info); +} + +void __cpuinit vsyscall_set_cpu(int cpu) +{ + unsigned long *d; + unsigned long node = 0; +#ifdef CONFIG_NUMA + node = cpu_to_node[cpu]; +#endif + if (cpu_has(&cpu_data[cpu], X86_FEATURE_RDTSCP)) { + void *info = (void *)((node << 12) | cpu); + /* Can happen on preemptive kernel */ + if (get_cpu() == cpu) + write_rdtscp_cb(info); +#ifdef CONFIG_SMP + else { + /* the notifier is unfortunately not executed on the + target CPU */ + smp_call_function_single(cpu,write_rdtscp_cb,info,0,1); + } +#endif + put_cpu(); + } + + /* Store cpu number in limit so that it can be loaded quickly + in user space in vgetcpu. + 12 bits for the CPU and 8 bits for the node. */ + d = (unsigned long *)(cpu_gdt(cpu) + GDT_ENTRY_PER_CPU); + *d = 0x0f40000000000ULL; + *d |= cpu; + *d |= (node & 0xf) << 12; + *d |= (node >> 4) << 48; +} + static void __init map_vsyscall(void) { extern char __vsyscall_0; @@ -214,6 +295,7 @@ VSYSCALL_ADDR(__NR_vgettimeofday))); BUG_ON((unsigned long) &vtime != VSYSCALL_ADDR(__NR_vtime)); BUG_ON((VSYSCALL_ADDR(0) != __fix_to_virt(VSYSCALL_FIRST_PAGE))); + BUG_ON((unsigned long) &vgetcpu != VSYSCALL_ADDR(__NR_vgetcpu)); map_vsyscall(); #ifdef CONFIG_SYSCTL register_sysctl_table(kernel_root_table2, 0);
diff --git a/arch/x86_64/kernel/x8664_ksyms.c b/arch/x86_64/kernel/x8664_ksyms.c index 370952c..c3454af 100644 --- a/arch/x86_64/kernel/x8664_ksyms.c +++ b/arch/x86_64/kernel/x8664_ksyms.c
@@ -29,6 +29,7 @@ EXPORT_SYMBOL(copy_user_generic); EXPORT_SYMBOL(copy_from_user); EXPORT_SYMBOL(copy_to_user); +EXPORT_SYMBOL(__copy_from_user_inatomic); EXPORT_SYMBOL(copy_page); EXPORT_SYMBOL(clear_page);
diff --git a/arch/x86_64/lib/Makefile b/arch/x86_64/lib/Makefile index ccef6ae..b78d417 100644 --- a/arch/x86_64/lib/Makefile +++ b/arch/x86_64/lib/Makefile
@@ -9,4 +9,4 @@ lib-y := csum-partial.o csum-copy.o csum-wrappers.o delay.o \ usercopy.o getuser.o putuser.o \ thunk.o clear_page.o copy_page.o bitstr.o bitops.o -lib-y += memcpy.o memmove.o memset.o copy_user.o +lib-y += memcpy.o memmove.o memset.o copy_user.o rwlock.o
diff --git a/arch/x86_64/lib/clear_page.S b/arch/x86_64/lib/clear_page.S index 1f81b79..9a10a78 100644 --- a/arch/x86_64/lib/clear_page.S +++ b/arch/x86_64/lib/clear_page.S
@@ -1,10 +1,22 @@ +#include <linux/linkage.h> +#include <asm/dwarf2.h> + /* * Zero a page. * rdi page */ - .globl clear_page - .p2align 4 -clear_page: + ALIGN +clear_page_c: + CFI_STARTPROC + movl $4096/8,%ecx + xorl %eax,%eax + rep stosq + ret + CFI_ENDPROC +ENDPROC(clear_page) + +ENTRY(clear_page) + CFI_STARTPROC xorl %eax,%eax movl $4096/64,%ecx .p2align 4 @@ -23,28 +35,25 @@ jnz .Lloop nop ret -clear_page_end: + CFI_ENDPROC +.Lclear_page_end: +ENDPROC(clear_page) /* Some CPUs run faster using the string instructions. It is also a lot simpler. Use this when possible */ #include <asm/cpufeature.h> + .section .altinstr_replacement,"ax" +1: .byte 0xeb /* jmp <disp8> */ + .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */ +2: + .previous .section .altinstructions,"a" .align 8 - .quad clear_page - .quad clear_page_c - .byte X86_FEATURE_REP_GOOD - .byte clear_page_end-clear_page - .byte clear_page_c_end-clear_page_c - .previous - - .section .altinstr_replacement,"ax" -clear_page_c: - movl $4096/8,%ecx - xorl %eax,%eax - rep - stosq - ret -clear_page_c_end: + .quad clear_page + .quad 1b + .byte X86_FEATURE_REP_GOOD + .byte .Lclear_page_end - clear_page + .byte 2b - 1b .previous
diff --git a/arch/x86_64/lib/copy_page.S b/arch/x86_64/lib/copy_page.S index 8fa19d9..0ebb03b 100644 --- a/arch/x86_64/lib/copy_page.S +++ b/arch/x86_64/lib/copy_page.S
@@ -1,17 +1,33 @@ /* Written 2003 by Andi Kleen, based on a kernel by Evandro Menezes */ +#include <linux/config.h> +#include <linux/linkage.h> +#include <asm/dwarf2.h> + + ALIGN +copy_page_c: + CFI_STARTPROC + movl $4096/8,%ecx + rep movsq + ret + CFI_ENDPROC +ENDPROC(copy_page_c) + /* Don't use streaming store because it's better when the target ends up in cache. */ /* Could vary the prefetch distance based on SMP/UP */ - .globl copy_page - .p2align 4 -copy_page: +ENTRY(copy_page) + CFI_STARTPROC subq $3*8,%rsp + CFI_ADJUST_CFA_OFFSET 3*8 movq %rbx,(%rsp) + CFI_REL_OFFSET rbx, 0 movq %r12,1*8(%rsp) + CFI_REL_OFFSET r12, 1*8 movq %r13,2*8(%rsp) + CFI_REL_OFFSET r13, 2*8 movl $(4096/64)-5,%ecx .p2align 4 @@ -72,30 +88,33 @@ jnz .Loop2 movq (%rsp),%rbx + CFI_RESTORE rbx movq 1*8(%rsp),%r12 + CFI_RESTORE r12 movq 2*8(%rsp),%r13 + CFI_RESTORE r13 addq $3*8,%rsp + CFI_ADJUST_CFA_OFFSET -3*8 ret +.Lcopy_page_end: + CFI_ENDPROC +ENDPROC(copy_page) /* Some CPUs run faster using the string copy instructions. It is also a lot simpler. Use this when possible */ #include <asm/cpufeature.h> + .section .altinstr_replacement,"ax" +1: .byte 0xeb /* jmp <disp8> */ + .byte (copy_page_c - copy_page) - (2f - 1b) /* offset */ +2: + .previous .section .altinstructions,"a" .align 8 - .quad copy_page - .quad copy_page_c - .byte X86_FEATURE_REP_GOOD - .byte copy_page_c_end-copy_page_c - .byte copy_page_c_end-copy_page_c - .previous - - .section .altinstr_replacement,"ax" -copy_page_c: - movl $4096/8,%ecx - rep - movsq - ret -copy_page_c_end: + .quad copy_page + .quad 1b + .byte X86_FEATURE_REP_GOOD + .byte .Lcopy_page_end - copy_page + .byte 2b - 1b .previous
diff --git a/arch/x86_64/lib/copy_user.S b/arch/x86_64/lib/copy_user.S index f64569b..70bebd3 100644 --- a/arch/x86_64/lib/copy_user.S +++ b/arch/x86_64/lib/copy_user.S
@@ -4,56 +4,78 @@ * Functions to copy from and to user space. */ +#include <linux/linkage.h> +#include <asm/dwarf2.h> + #define FIX_ALIGNMENT 1 - #include <asm/current.h> - #include <asm/asm-offsets.h> - #include <asm/thread_info.h> - #include <asm/cpufeature.h> +#include <asm/current.h> +#include <asm/asm-offsets.h> +#include <asm/thread_info.h> +#include <asm/cpufeature.h> + + .macro ALTERNATIVE_JUMP feature,orig,alt +0: + .byte 0xe9 /* 32bit jump */ + .long \orig-1f /* by default jump to orig */ +1: + .section .altinstr_replacement,"ax" +2: .byte 0xe9 /* near jump with 32bit immediate */ + .long \alt-1b /* offset */ /* or alternatively to alt */ + .previous + .section .altinstructions,"a" + .align 8 + .quad 0b + .quad 2b + .byte \feature /* when feature is set */ + .byte 5 + .byte 5 + .previous + .endm /* Standard copy_to_user with segment limit checking */ - .globl copy_to_user - .p2align 4 -copy_to_user: +ENTRY(copy_to_user) + CFI_STARTPROC GET_THREAD_INFO(%rax) movq %rdi,%rcx addq %rdx,%rcx jc bad_to_user cmpq threadinfo_addr_limit(%rax),%rcx jae bad_to_user -2: - .byte 0xe9 /* 32bit jump */ - .long .Lcug-1f -1: + xorl %eax,%eax /* clear zero flag */ + ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string + CFI_ENDPROC - .section .altinstr_replacement,"ax" -3: .byte 0xe9 /* replacement jmp with 8 bit immediate */ - .long copy_user_generic_c-1b /* offset */ - .previous - .section .altinstructions,"a" - .align 8 - .quad 2b - .quad 3b - .byte X86_FEATURE_REP_GOOD - .byte 5 - .byte 5 - .previous +ENTRY(copy_user_generic) + CFI_STARTPROC + movl $1,%ecx /* set zero flag */ + ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string + CFI_ENDPROC + +ENTRY(__copy_from_user_inatomic) + CFI_STARTPROC + xorl %ecx,%ecx /* clear zero flag */ + ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string + CFI_ENDPROC /* Standard copy_from_user with segment limit checking */ - .globl copy_from_user - .p2align 4 -copy_from_user: +ENTRY(copy_from_user) + CFI_STARTPROC GET_THREAD_INFO(%rax) movq %rsi,%rcx addq %rdx,%rcx jc bad_from_user cmpq threadinfo_addr_limit(%rax),%rcx jae bad_from_user - /* FALL THROUGH to copy_user_generic */ + movl $1,%ecx /* set zero flag */ + ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,copy_user_generic_unrolled,copy_user_generic_string + CFI_ENDPROC +ENDPROC(copy_from_user) .section .fixup,"ax" /* must zero dest */ bad_from_user: + CFI_STARTPROC movl %edx,%ecx xorl %eax,%eax rep @@ -61,40 +83,32 @@ bad_to_user: movl %edx,%eax ret + CFI_ENDPROC +END(bad_from_user) .previous /* - * copy_user_generic - memory copy with exception handling. + * copy_user_generic_unrolled - memory copy with exception handling. + * This version is for CPUs like P4 that don't have efficient micro code for rep movsq * * Input: * rdi destination * rsi source * rdx count + * ecx zero flag -- if true zero destination on error * * Output: * eax uncopied bytes or 0 if successful. */ - .globl copy_user_generic - .p2align 4 -copy_user_generic: - .byte 0x66,0x66,0x90 /* 5 byte nop for replacement jump */ - .byte 0x66,0x90 -1: - .section .altinstr_replacement,"ax" -2: .byte 0xe9 /* near jump with 32bit immediate */ - .long copy_user_generic_c-1b /* offset */ - .previous - .section .altinstructions,"a" - .align 8 - .quad copy_user_generic - .quad 2b - .byte X86_FEATURE_REP_GOOD - .byte 5 - .byte 5 - .previous -.Lcug: +ENTRY(copy_user_generic_unrolled) + CFI_STARTPROC pushq %rbx + CFI_ADJUST_CFA_OFFSET 8 + CFI_REL_OFFSET rbx, 0 + pushq %rcx + CFI_ADJUST_CFA_OFFSET 8 + CFI_REL_OFFSET rcx, 0 xorl %eax,%eax /*zero for the exception handler */ #ifdef FIX_ALIGNMENT @@ -168,9 +182,16 @@ decl %ecx jnz .Lloop_1 + CFI_REMEMBER_STATE .Lende: + popq %rcx + CFI_ADJUST_CFA_OFFSET -8 + CFI_RESTORE rcx popq %rbx + CFI_ADJUST_CFA_OFFSET -8 + CFI_RESTORE rbx ret + CFI_RESTORE_STATE #ifdef FIX_ALIGNMENT /* align destination */ @@ -252,6 +273,8 @@ addl %ecx,%edx /* edx: bytes to zero, rdi: dest, eax:zero */ .Lzero_rest: + cmpl $0,(%rsp) + jz .Le_zero movq %rdx,%rcx .Le_byte: xorl %eax,%eax @@ -261,6 +284,9 @@ .Le_zero: movq %rdx,%rax jmp .Lende + CFI_ENDPROC +ENDPROC(copy_user_generic) + /* Some CPUs run faster using the string copy instructions. This is also a lot simpler. Use them when possible. @@ -270,6 +296,7 @@ /* rdi destination * rsi source * rdx count + * ecx zero flag * * Output: * eax uncopied bytes or 0 if successfull. @@ -280,22 +307,48 @@ * And more would be dangerous because both Intel and AMD have * errata with rep movsq > 4GB. If someone feels the need to fix * this please consider this. - */ -copy_user_generic_c: + */ +ENTRY(copy_user_generic_string) + CFI_STARTPROC + movl %ecx,%r8d /* save zero flag */ movl %edx,%ecx shrl $3,%ecx andl $7,%edx + jz 10f 1: rep movsq movl %edx,%ecx 2: rep movsb -4: movl %ecx,%eax +9: movl %ecx,%eax ret -3: lea (%rdx,%rcx,8),%rax + + /* multiple of 8 byte */ +10: rep + movsq + xor %eax,%eax ret + /* exception handling */ +3: lea (%rdx,%rcx,8),%rax /* exception on quad loop */ + jmp 6f +5: movl %ecx,%eax /* exception on byte loop */ + /* eax: left over bytes */ +6: testl %r8d,%r8d /* zero flag set? */ + jz 7f + movl %eax,%ecx /* initialize x86 loop counter */ + push %rax + xorl %eax,%eax +8: rep + stosb /* zero the rest */ +11: pop %rax +7: ret + CFI_ENDPROC +END(copy_user_generic_c) + .section __ex_table,"a" .quad 1b,3b - .quad 2b,4b + .quad 2b,5b + .quad 8b,11b + .quad 10b,3b .previous
diff --git a/arch/x86_64/lib/csum-copy.S b/arch/x86_64/lib/csum-copy.S index 72fd55e..f0dba36 100644 --- a/arch/x86_64/lib/csum-copy.S +++ b/arch/x86_64/lib/csum-copy.S
@@ -5,8 +5,9 @@ * License. See the file COPYING in the main directory of this archive * for more details. No warranty for anything given at all. */ - #include <linux/linkage.h> - #include <asm/errno.h> +#include <linux/linkage.h> +#include <asm/dwarf2.h> +#include <asm/errno.h> /* * Checksum copy with exception handling. @@ -53,19 +54,24 @@ .endm - .globl csum_partial_copy_generic - .p2align 4 -csum_partial_copy_generic: +ENTRY(csum_partial_copy_generic) + CFI_STARTPROC cmpl $3*64,%edx jle .Lignore .Lignore: subq $7*8,%rsp + CFI_ADJUST_CFA_OFFSET 7*8 movq %rbx,2*8(%rsp) + CFI_REL_OFFSET rbx, 2*8 movq %r12,3*8(%rsp) + CFI_REL_OFFSET r12, 3*8 movq %r14,4*8(%rsp) + CFI_REL_OFFSET r14, 4*8 movq %r13,5*8(%rsp) + CFI_REL_OFFSET r13, 5*8 movq %rbp,6*8(%rsp) + CFI_REL_OFFSET rbp, 6*8 movq %r8,(%rsp) movq %r9,1*8(%rsp) @@ -208,14 +214,22 @@ addl %ebx,%eax adcl %r9d,%eax /* carry */ + CFI_REMEMBER_STATE .Lende: movq 2*8(%rsp),%rbx + CFI_RESTORE rbx movq 3*8(%rsp),%r12 + CFI_RESTORE r12 movq 4*8(%rsp),%r14 + CFI_RESTORE r14 movq 5*8(%rsp),%r13 + CFI_RESTORE r13 movq 6*8(%rsp),%rbp + CFI_RESTORE rbp addq $7*8,%rsp + CFI_ADJUST_CFA_OFFSET -7*8 ret + CFI_RESTORE_STATE /* Exception handlers. Very simple, zeroing is done in the wrappers */ .Lbad_source: @@ -231,3 +245,5 @@ jz .Lende movl $-EFAULT,(%rax) jmp .Lende + CFI_ENDPROC +ENDPROC(csum_partial_copy_generic)
diff --git a/arch/x86_64/lib/getuser.S b/arch/x86_64/lib/getuser.S index 3844d5e..5448876 100644 --- a/arch/x86_64/lib/getuser.S +++ b/arch/x86_64/lib/getuser.S
@@ -27,25 +27,26 @@ */ #include <linux/linkage.h> +#include <asm/dwarf2.h> #include <asm/page.h> #include <asm/errno.h> #include <asm/asm-offsets.h> #include <asm/thread_info.h> .text - .p2align 4 -.globl __get_user_1 -__get_user_1: +ENTRY(__get_user_1) + CFI_STARTPROC GET_THREAD_INFO(%r8) cmpq threadinfo_addr_limit(%r8),%rcx jae bad_get_user 1: movzb (%rcx),%edx xorl %eax,%eax ret + CFI_ENDPROC +ENDPROC(__get_user_1) - .p2align 4 -.globl __get_user_2 -__get_user_2: +ENTRY(__get_user_2) + CFI_STARTPROC GET_THREAD_INFO(%r8) addq $1,%rcx jc 20f @@ -57,10 +58,11 @@ ret 20: decq %rcx jmp bad_get_user + CFI_ENDPROC +ENDPROC(__get_user_2) - .p2align 4 -.globl __get_user_4 -__get_user_4: +ENTRY(__get_user_4) + CFI_STARTPROC GET_THREAD_INFO(%r8) addq $3,%rcx jc 30f @@ -72,10 +74,11 @@ ret 30: subq $3,%rcx jmp bad_get_user + CFI_ENDPROC +ENDPROC(__get_user_4) - .p2align 4 -.globl __get_user_8 -__get_user_8: +ENTRY(__get_user_8) + CFI_STARTPROC GET_THREAD_INFO(%r8) addq $7,%rcx jc 40f @@ -87,11 +90,16 @@ ret 40: subq $7,%rcx jmp bad_get_user + CFI_ENDPROC +ENDPROC(__get_user_8) bad_get_user: + CFI_STARTPROC xorl %edx,%edx movq $(-EFAULT),%rax ret + CFI_ENDPROC +END(bad_get_user) .section __ex_table,"a" .quad 1b,bad_get_user
diff --git a/arch/x86_64/lib/iomap_copy.S b/arch/x86_64/lib/iomap_copy.S index 8bbade5..05a95e7 100644 --- a/arch/x86_64/lib/iomap_copy.S +++ b/arch/x86_64/lib/iomap_copy.S
@@ -15,12 +15,16 @@ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ +#include <linux/linkage.h> +#include <asm/dwarf2.h> + /* * override generic version in lib/iomap_copy.c */ - .globl __iowrite32_copy - .p2align 4 -__iowrite32_copy: +ENTRY(__iowrite32_copy) + CFI_STARTPROC movl %edx,%ecx rep movsd ret + CFI_ENDPROC +ENDPROC(__iowrite32_copy)
diff --git a/arch/x86_64/lib/memcpy.S b/arch/x86_64/lib/memcpy.S index 5554948..967b22f 100644 --- a/arch/x86_64/lib/memcpy.S +++ b/arch/x86_64/lib/memcpy.S
@@ -1,6 +1,10 @@ /* Copyright 2002 Andi Kleen */ - #include <asm/cpufeature.h> +#include <linux/config.h> +#include <linux/linkage.h> +#include <asm/dwarf2.h> +#include <asm/cpufeature.h> + /* * memcpy - Copy a memory block. * @@ -13,12 +17,26 @@ * rax original destination */ - .globl __memcpy - .globl memcpy - .p2align 4 -__memcpy: -memcpy: + ALIGN +memcpy_c: + CFI_STARTPROC + movq %rdi,%rax + movl %edx,%ecx + shrl $3,%ecx + andl $7,%edx + rep movsq + movl %edx,%ecx + rep movsb + ret + CFI_ENDPROC +ENDPROC(memcpy_c) + +ENTRY(__memcpy) +ENTRY(memcpy) + CFI_STARTPROC pushq %rbx + CFI_ADJUST_CFA_OFFSET 8 + CFI_REL_OFFSET rbx, 0 movq %rdi,%rax movl %edx,%ecx @@ -86,36 +104,27 @@ .Lende: popq %rbx + CFI_ADJUST_CFA_OFFSET -8 + CFI_RESTORE rbx ret .Lfinal: + CFI_ENDPROC +ENDPROC(memcpy) +ENDPROC(__memcpy) /* Some CPUs run faster using the string copy instructions. It is also a lot simpler. Use this when possible */ + .section .altinstr_replacement,"ax" +1: .byte 0xeb /* jmp <disp8> */ + .byte (memcpy_c - memcpy) - (2f - 1b) /* offset */ +2: + .previous .section .altinstructions,"a" .align 8 - .quad memcpy - .quad memcpy_c - .byte X86_FEATURE_REP_GOOD - .byte .Lfinal-memcpy - .byte memcpy_c_end-memcpy_c - .previous - - .section .altinstr_replacement,"ax" - /* rdi destination - * rsi source - * rdx count - */ -memcpy_c: - movq %rdi,%rax - movl %edx,%ecx - shrl $3,%ecx - andl $7,%edx - rep - movsq - movl %edx,%ecx - rep - movsb - ret -memcpy_c_end: + .quad memcpy + .quad 1b + .byte X86_FEATURE_REP_GOOD + .byte .Lfinal - memcpy + .byte 2b - 1b .previous
diff --git a/arch/x86_64/lib/memset.S b/arch/x86_64/lib/memset.S index ad397f2..09ed1f6 100644 --- a/arch/x86_64/lib/memset.S +++ b/arch/x86_64/lib/memset.S
@@ -1,4 +1,9 @@ /* Copyright 2002 Andi Kleen, SuSE Labs */ + +#include <linux/config.h> +#include <linux/linkage.h> +#include <asm/dwarf2.h> + /* * ISO C memset - set a memory block to a byte value. * @@ -8,11 +13,29 @@ * * rax original destination */ - .globl __memset - .globl memset - .p2align 4 -memset: -__memset: + ALIGN +memset_c: + CFI_STARTPROC + movq %rdi,%r9 + movl %edx,%r8d + andl $7,%r8d + movl %edx,%ecx + shrl $3,%ecx + /* expand byte value */ + movzbl %sil,%esi + movabs $0x0101010101010101,%rax + mulq %rsi /* with rax, clobbers rdx */ + rep stosq + movl %r8d,%ecx + rep stosb + movq %r9,%rax + ret + CFI_ENDPROC +ENDPROC(memset_c) + +ENTRY(memset) +ENTRY(__memset) + CFI_STARTPROC movq %rdi,%r10 movq %rdx,%r11 @@ -25,6 +48,7 @@ movl %edi,%r9d andl $7,%r9d jnz .Lbad_alignment + CFI_REMEMBER_STATE .Lafter_bad_alignment: movl %r11d,%ecx @@ -75,6 +99,7 @@ movq %r10,%rax ret + CFI_RESTORE_STATE .Lbad_alignment: cmpq $7,%r11 jbe .Lhandle_7 @@ -84,42 +109,26 @@ addq %r8,%rdi subq %r8,%r11 jmp .Lafter_bad_alignment +.Lfinal: + CFI_ENDPROC +ENDPROC(memset) +ENDPROC(__memset) /* Some CPUs run faster using the string instructions. It is also a lot simpler. Use this when possible */ #include <asm/cpufeature.h> + .section .altinstr_replacement,"ax" +1: .byte 0xeb /* jmp <disp8> */ + .byte (memset_c - memset) - (2f - 1b) /* offset */ +2: + .previous .section .altinstructions,"a" .align 8 - .quad memset - .quad memset_c - .byte X86_FEATURE_REP_GOOD - .byte memset_c_end-memset_c - .byte memset_c_end-memset_c - .previous - - .section .altinstr_replacement,"ax" - /* rdi destination - * rsi value - * rdx count - */ -memset_c: - movq %rdi,%r9 - movl %edx,%r8d - andl $7,%r8d - movl %edx,%ecx - shrl $3,%ecx - /* expand byte value */ - movzbl %sil,%esi - movabs $0x0101010101010101,%rax - mulq %rsi /* with rax, clobbers rdx */ - rep - stosq - movl %r8d,%ecx - rep - stosb - movq %r9,%rax - ret -memset_c_end: + .quad memset + .quad 1b + .byte X86_FEATURE_REP_GOOD + .byte .Lfinal - memset + .byte 2b - 1b .previous
diff --git a/arch/x86_64/lib/putuser.S b/arch/x86_64/lib/putuser.S index 7f55939..4989f5a 100644 --- a/arch/x86_64/lib/putuser.S +++ b/arch/x86_64/lib/putuser.S
@@ -25,25 +25,26 @@ */ #include <linux/linkage.h> +#include <asm/dwarf2.h> #include <asm/page.h> #include <asm/errno.h> #include <asm/asm-offsets.h> #include <asm/thread_info.h> .text - .p2align 4 -.globl __put_user_1 -__put_user_1: +ENTRY(__put_user_1) + CFI_STARTPROC GET_THREAD_INFO(%r8) cmpq threadinfo_addr_limit(%r8),%rcx jae bad_put_user 1: movb %dl,(%rcx) xorl %eax,%eax ret + CFI_ENDPROC +ENDPROC(__put_user_1) - .p2align 4 -.globl __put_user_2 -__put_user_2: +ENTRY(__put_user_2) + CFI_STARTPROC GET_THREAD_INFO(%r8) addq $1,%rcx jc 20f @@ -55,10 +56,11 @@ ret 20: decq %rcx jmp bad_put_user + CFI_ENDPROC +ENDPROC(__put_user_2) - .p2align 4 -.globl __put_user_4 -__put_user_4: +ENTRY(__put_user_4) + CFI_STARTPROC GET_THREAD_INFO(%r8) addq $3,%rcx jc 30f @@ -70,10 +72,11 @@ ret 30: subq $3,%rcx jmp bad_put_user + CFI_ENDPROC +ENDPROC(__put_user_4) - .p2align 4 -.globl __put_user_8 -__put_user_8: +ENTRY(__put_user_8) + CFI_STARTPROC GET_THREAD_INFO(%r8) addq $7,%rcx jc 40f @@ -85,10 +88,15 @@ ret 40: subq $7,%rcx jmp bad_put_user + CFI_ENDPROC +ENDPROC(__put_user_8) bad_put_user: + CFI_STARTPROC movq $(-EFAULT),%rax ret + CFI_ENDPROC +END(bad_put_user) .section __ex_table,"a" .quad 1b,bad_put_user
diff --git a/arch/x86_64/lib/rwlock.S b/arch/x86_64/lib/rwlock.S new file mode 100644 index 0000000..0cde1f8 --- /dev/null +++ b/arch/x86_64/lib/rwlock.S
@@ -0,0 +1,38 @@ +/* Slow paths of read/write spinlocks. */ + +#include <linux/linkage.h> +#include <asm/rwlock.h> +#include <asm/alternative-asm.i> +#include <asm/dwarf2.h> + +/* rdi: pointer to rwlock_t */ +ENTRY(__write_lock_failed) + CFI_STARTPROC + LOCK_PREFIX + addl $RW_LOCK_BIAS,(%rdi) +1: rep + nop + cmpl $RW_LOCK_BIAS,(%rdi) + jne 1b + LOCK_PREFIX + subl $RW_LOCK_BIAS,(%rdi) + jnz __write_lock_failed + ret + CFI_ENDPROC +END(__write_lock_failed) + +/* rdi: pointer to rwlock_t */ +ENTRY(__read_lock_failed) + CFI_STARTPROC + LOCK_PREFIX + incl (%rdi) +1: rep + nop + cmpl $1,(%rdi) + js 1b + LOCK_PREFIX + decl (%rdi) + js __read_lock_failed + ret + CFI_ENDPROC +END(__read_lock_failed)
diff --git a/arch/x86_64/lib/thunk.S b/arch/x86_64/lib/thunk.S index 332ea5d..0025535 100644 --- a/arch/x86_64/lib/thunk.S +++ b/arch/x86_64/lib/thunk.S
@@ -1,10 +1,9 @@ - /* - * Save registers before calling assembly functions. This avoids - * disturbance of register allocation in some inline assembly constructs. - * Copyright 2001,2002 by Andi Kleen, SuSE Labs. - * Subject to the GNU public license, v.2. No warranty of any kind. - * $Id: thunk.S,v 1.2 2002/03/13 20:06:58 ak Exp $ - */ +/* + * Save registers before calling assembly functions. This avoids + * disturbance of register allocation in some inline assembly constructs. + * Copyright 2001,2002 by Andi Kleen, SuSE Labs. + * Subject to the GNU public license, v.2. No warranty of any kind. + */ #include <linux/config.h> #include <linux/linkage.h> @@ -67,33 +66,3 @@ RESTORE_ARGS 1 ret CFI_ENDPROC - -#ifdef CONFIG_SMP -/* Support for read/write spinlocks. */ - .text -/* rax: pointer to rwlock_t */ -ENTRY(__write_lock_failed) - lock - addl $RW_LOCK_BIAS,(%rax) -1: rep - nop - cmpl $RW_LOCK_BIAS,(%rax) - jne 1b - lock - subl $RW_LOCK_BIAS,(%rax) - jnz __write_lock_failed - ret - -/* rax: pointer to rwlock_t */ -ENTRY(__read_lock_failed) - lock - incl (%rax) -1: rep - nop - cmpl $1,(%rax) - js 1b - lock - decl (%rax) - js __read_lock_failed - ret -#endif
diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c index ac8ea66..1a17b07 100644 --- a/arch/x86_64/mm/fault.c +++ b/arch/x86_64/mm/fault.c
@@ -40,8 +40,7 @@ #define PF_RSVD (1<<3) #define PF_INSTR (1<<4) -#ifdef CONFIG_KPROBES -ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); +static ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain); /* Hook to register for page fault notifications */ int register_page_fault_notifier(struct notifier_block *nb) @@ -49,11 +48,13 @@ vmalloc_sync_all(); return atomic_notifier_chain_register(¬ify_page_fault_chain, nb); } +EXPORT_SYMBOL_GPL(register_page_fault_notifier); int unregister_page_fault_notifier(struct notifier_block *nb) { return atomic_notifier_chain_unregister(¬ify_page_fault_chain, nb); } +EXPORT_SYMBOL_GPL(unregister_page_fault_notifier); static inline int notify_page_fault(enum die_val val, const char *str, struct pt_regs *regs, long err, int trap, int sig) @@ -67,13 +68,6 @@ }; return atomic_notifier_call_chain(¬ify_page_fault_chain, val, &args); } -#else -static inline int notify_page_fault(enum die_val val, const char *str, - struct pt_regs *regs, long err, int trap, int sig) -{ - return NOTIFY_DONE; -} -#endif void bust_spinlocks(int yes) { @@ -102,7 +96,7 @@ static noinline int is_prefetch(struct pt_regs *regs, unsigned long addr, unsigned long error_code) { - unsigned char *instr; + unsigned char __user *instr; int scan_more = 1; int prefetch = 0; unsigned char *max_instr; @@ -111,7 +105,7 @@ if (error_code & PF_INSTR) return 0; - instr = (unsigned char *)convert_rip_to_linear(current, regs); + instr = (unsigned char __user *)convert_rip_to_linear(current, regs); max_instr = instr + 15; if (user_mode(regs) && instr >= (unsigned char *)TASK_SIZE) @@ -122,7 +116,7 @@ unsigned char instr_hi; unsigned char instr_lo; - if (__get_user(opcode, instr)) + if (__get_user(opcode, (char __user *)instr)) break; instr_hi = opcode & 0xf0; @@ -160,7 +154,7 @@ case 0x00: /* Prefetch instruction is 0x0F0D or 0x0F18 */ scan_more = 0; - if (__get_user(opcode, instr)) + if (__get_user(opcode, (char __user *)instr)) break; prefetch = (instr_lo == 0xF) && (opcode == 0x0D || opcode == 0x18); @@ -176,7 +170,7 @@ static int bad_address(void *p) { unsigned long dummy; - return __get_user(dummy, (unsigned long *)p); + return __get_user(dummy, (unsigned long __user *)p); } void dump_pagetable(unsigned long address) @@ -299,7 +293,7 @@ if (pgd_none(*pgd)) set_pgd(pgd, *pgd_ref); else - BUG_ON(pgd_page(*pgd) != pgd_page(*pgd_ref)); + BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref)); /* Below here mismatches are bugs because these lower tables are shared */ @@ -308,7 +302,7 @@ pud_ref = pud_offset(pgd_ref, address); if (pud_none(*pud_ref)) return -1; - if (pud_none(*pud) || pud_page(*pud) != pud_page(*pud_ref)) + if (pud_none(*pud) || pud_page_vaddr(*pud) != pud_page_vaddr(*pud_ref)) BUG(); pmd = pmd_offset(pud, address); pmd_ref = pmd_offset(pud_ref, address); @@ -641,7 +635,7 @@ if (pgd_none(*pgd)) set_pgd(pgd, *pgd_ref); else - BUG_ON(pgd_page(*pgd) != pgd_page(*pgd_ref)); + BUG_ON(pgd_page_vaddr(*pgd) != pgd_page_vaddr(*pgd_ref)); } spin_unlock(&pgd_lock); set_bit(pgd_index(address), insync);
diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c index d14fb2d..3e16fe0 100644 --- a/arch/x86_64/mm/init.c +++ b/arch/x86_64/mm/init.c
@@ -229,7 +229,6 @@ /* actually usually some more */ if (size >= LARGE_PAGE_SIZE) { - printk("SMBIOS area too long %lu\n", size); return NULL; } set_pmd(temp_mappings[0].pmd, __pmd(map | _KERNPG_TABLE | _PAGE_PSE)); @@ -250,12 +249,13 @@ } static void __meminit -phys_pmd_init(pmd_t *pmd, unsigned long address, unsigned long end) +phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end) { - int i; + int i = pmd_index(address); - for (i = 0; i < PTRS_PER_PMD; pmd++, i++, address += PMD_SIZE) { + for (; i < PTRS_PER_PMD; i++, address += PMD_SIZE) { unsigned long entry; + pmd_t *pmd = pmd_page + pmd_index(address); if (address >= end) { if (!after_bootmem) @@ -263,6 +263,10 @@ set_pmd(pmd, __pmd(0)); break; } + + if (pmd_val(*pmd)) + continue; + entry = _PAGE_NX|_PAGE_PSE|_KERNPG_TABLE|_PAGE_GLOBAL|address; entry &= __supported_pte_mask; set_pmd(pmd, __pmd(entry)); @@ -272,45 +276,41 @@ static void __meminit phys_pmd_update(pud_t *pud, unsigned long address, unsigned long end) { - pmd_t *pmd = pmd_offset(pud, (unsigned long)__va(address)); - - if (pmd_none(*pmd)) { - spin_lock(&init_mm.page_table_lock); - phys_pmd_init(pmd, address, end); - spin_unlock(&init_mm.page_table_lock); - __flush_tlb_all(); - } + pmd_t *pmd = pmd_offset(pud,0); + spin_lock(&init_mm.page_table_lock); + phys_pmd_init(pmd, address, end); + spin_unlock(&init_mm.page_table_lock); + __flush_tlb_all(); } -static void __meminit phys_pud_init(pud_t *pud, unsigned long address, unsigned long end) +static void __meminit phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end) { - long i = pud_index(address); + int i = pud_index(addr); - pud = pud + i; - if (after_bootmem && pud_val(*pud)) { - phys_pmd_update(pud, address, end); - return; - } - - for (; i < PTRS_PER_PUD; pud++, i++) { + for (; i < PTRS_PER_PUD; i++, addr = (addr & PUD_MASK) + PUD_SIZE ) { int map; - unsigned long paddr, pmd_phys; + unsigned long pmd_phys; + pud_t *pud = pud_page + pud_index(addr); pmd_t *pmd; - paddr = (address & PGDIR_MASK) + i*PUD_SIZE; - if (paddr >= end) + if (addr >= end) break; - if (!after_bootmem && !e820_any_mapped(paddr, paddr+PUD_SIZE, 0)) { + if (!after_bootmem && !e820_any_mapped(addr,addr+PUD_SIZE,0)) { set_pud(pud, __pud(0)); continue; } + if (pud_val(*pud)) { + phys_pmd_update(pud, addr, end); + continue; + } + pmd = alloc_low_page(&map, &pmd_phys); spin_lock(&init_mm.page_table_lock); set_pud(pud, __pud(pmd_phys | _KERNPG_TABLE)); - phys_pmd_init(pmd, paddr, end); + phys_pmd_init(pmd, addr, end); spin_unlock(&init_mm.page_table_lock); unmap_low_page(map); } @@ -403,69 +403,15 @@ __flush_tlb_all(); } -/* Compute zone sizes for the DMA and DMA32 zones in a node. */ -__init void -size_zones(unsigned long *z, unsigned long *h, - unsigned long start_pfn, unsigned long end_pfn) -{ - int i; - unsigned long w; - - for (i = 0; i < MAX_NR_ZONES; i++) - z[i] = 0; - - if (start_pfn < MAX_DMA_PFN) - z[ZONE_DMA] = MAX_DMA_PFN - start_pfn; - if (start_pfn < MAX_DMA32_PFN) { - unsigned long dma32_pfn = MAX_DMA32_PFN; - if (dma32_pfn > end_pfn) - dma32_pfn = end_pfn; - z[ZONE_DMA32] = dma32_pfn - start_pfn; - } - z[ZONE_NORMAL] = end_pfn - start_pfn; - - /* Remove lower zones from higher ones. */ - w = 0; - for (i = 0; i < MAX_NR_ZONES; i++) { - if (z[i]) - z[i] -= w; - w += z[i]; - } - - /* Compute holes */ - w = start_pfn; - for (i = 0; i < MAX_NR_ZONES; i++) { - unsigned long s = w; - w += z[i]; - h[i] = e820_hole_size(s, w); - } - - /* Add the space pace needed for mem_map to the holes too. */ - for (i = 0; i < MAX_NR_ZONES; i++) - h[i] += (z[i] * sizeof(struct page)) / PAGE_SIZE; - - /* The 16MB DMA zone has the kernel and other misc mappings. - Account them too */ - if (h[ZONE_DMA]) { - h[ZONE_DMA] += dma_reserve; - if (h[ZONE_DMA] >= z[ZONE_DMA]) { - printk(KERN_WARNING - "Kernel too large and filling up ZONE_DMA?\n"); - h[ZONE_DMA] = z[ZONE_DMA]; - } - } -} - #ifndef CONFIG_NUMA void __init paging_init(void) { - unsigned long zones[MAX_NR_ZONES], holes[MAX_NR_ZONES]; - + unsigned long max_zone_pfns[MAX_NR_ZONES] = {MAX_DMA_PFN, + MAX_DMA32_PFN, + end_pfn}; memory_present(0, 0, end_pfn); sparse_init(); - size_zones(zones, holes, 0, end_pfn); - free_area_init_node(0, NODE_DATA(0), zones, - __pa(PAGE_OFFSET) >> PAGE_SHIFT, holes); + free_area_init_nodes(max_zone_pfns); } #endif @@ -536,7 +482,7 @@ int arch_add_memory(int nid, u64 start, u64 size) { struct pglist_data *pgdat = NODE_DATA(nid); - struct zone *zone = pgdat->node_zones + MAX_NR_ZONES-2; + struct zone *zone = pgdat->node_zones + ZONE_NORMAL; unsigned long start_pfn = start >> PAGE_SHIFT; unsigned long nr_pages = size >> PAGE_SHIFT; int ret; @@ -597,12 +543,6 @@ pci_iommu_alloc(); - /* How many end-of-memory variables you have, grandma! */ - max_low_pfn = end_pfn; - max_pfn = end_pfn; - num_physpages = end_pfn; - high_memory = (void *) __va(end_pfn * PAGE_SIZE); - /* clear the zero-page */ memset(empty_zero_page, 0, PAGE_SIZE); @@ -614,7 +554,8 @@ #else totalram_pages = free_all_bootmem(); #endif - reservedpages = end_pfn - totalram_pages - e820_hole_size(0, end_pfn); + reservedpages = end_pfn - totalram_pages - + absent_pages_in_range(0, end_pfn); after_bootmem = 1; @@ -714,8 +655,10 @@ #else reserve_bootmem(phys, len); #endif - if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) + if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) { dma_reserve += len / PAGE_SIZE; + set_dma_reserve(dma_reserve); + } } int kern_addr_valid(unsigned long addr)
diff --git a/arch/x86_64/mm/k8topology.c b/arch/x86_64/mm/k8topology.c index 7c45c2d..b5b8dba 100644 --- a/arch/x86_64/mm/k8topology.c +++ b/arch/x86_64/mm/k8topology.c
@@ -54,6 +54,9 @@ nodes_clear(nodes_parsed); + if (!early_pci_allowed()) + return -1; + nb = find_northbridge(); if (nb < 0) return nb; @@ -146,6 +149,9 @@ nodes[nodeid].start = base; nodes[nodeid].end = limit; + e820_register_active_regions(nodeid, + nodes[nodeid].start >> PAGE_SHIFT, + nodes[nodeid].end >> PAGE_SHIFT); prevbase = base;
diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c index b2fac14..829a008b 100644 --- a/arch/x86_64/mm/numa.c +++ b/arch/x86_64/mm/numa.c
@@ -161,7 +161,7 @@ bootmap_start >> PAGE_SHIFT, start_pfn, end_pfn); - e820_bootmem_free(NODE_DATA(nodeid), start, end); + free_bootmem_with_active_regions(nodeid, end); reserve_bootmem_node(NODE_DATA(nodeid), nodedata_phys, pgdat_size); reserve_bootmem_node(NODE_DATA(nodeid), bootmap_start, bootmap_pages<<PAGE_SHIFT); @@ -175,13 +175,11 @@ void __init setup_node_zones(int nodeid) { unsigned long start_pfn, end_pfn, memmapsize, limit; - unsigned long zones[MAX_NR_ZONES]; - unsigned long holes[MAX_NR_ZONES]; start_pfn = node_start_pfn(nodeid); end_pfn = node_end_pfn(nodeid); - Dprintk(KERN_INFO "Setting up node %d %lx-%lx\n", + Dprintk(KERN_INFO "Setting up memmap for node %d %lx-%lx\n", nodeid, start_pfn, end_pfn); /* Try to allocate mem_map at end to not fill up precious <4GB @@ -195,10 +193,6 @@ round_down(limit - memmapsize, PAGE_SIZE), limit); #endif - - size_zones(zones, holes, start_pfn, end_pfn); - free_area_init_node(nodeid, NODE_DATA(nodeid), zones, - start_pfn, holes); } void __init numa_init_array(void) @@ -225,7 +219,7 @@ int numa_fake __initdata = 0; /* Numa emulation */ -static int numa_emulation(unsigned long start_pfn, unsigned long end_pfn) +static int __init numa_emulation(unsigned long start_pfn, unsigned long end_pfn) { int i; struct bootnode nodes[MAX_NUMNODES]; @@ -259,8 +253,11 @@ printk(KERN_ERR "No NUMA hash function found. Emulation disabled.\n"); return -1; } - for_each_online_node(i) + for_each_online_node(i) { + e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT, + nodes[i].end >> PAGE_SHIFT); setup_node_bootmem(i, nodes[i].start, nodes[i].end); + } numa_init_array(); return 0; } @@ -299,6 +296,7 @@ for (i = 0; i < NR_CPUS; i++) numa_set_node(i, 0); node_to_cpumask[0] = cpumask_of_cpu(0); + e820_register_active_regions(0, start_pfn, end_pfn); setup_node_bootmem(0, start_pfn << PAGE_SHIFT, end_pfn << PAGE_SHIFT); } @@ -340,17 +338,23 @@ void __init paging_init(void) { int i; + unsigned long max_zone_pfns[MAX_NR_ZONES] = { MAX_DMA_PFN, + MAX_DMA32_PFN, + end_pfn}; arch_sparse_init(); for_each_online_node(i) { setup_node_zones(i); } + + free_area_init_nodes(max_zone_pfns); } -/* [numa=off] */ -__init int numa_setup(char *opt) +static __init int numa_setup(char *opt) { + if (!opt) + return -EINVAL; if (!strncmp(opt,"off",3)) numa_off = 1; #ifdef CONFIG_NUMA_EMU @@ -366,9 +370,11 @@ if (!strncmp(opt,"hotadd=", 7)) hotadd_percent = simple_strtoul(opt+7, NULL, 10); #endif - return 1; + return 0; } +early_param("numa", numa_setup); + /* * Setup early cpu_to_node. *
diff --git a/arch/x86_64/mm/pageattr.c b/arch/x86_64/mm/pageattr.c index 2685b1f..3e231d76 100644 --- a/arch/x86_64/mm/pageattr.c +++ b/arch/x86_64/mm/pageattr.c
@@ -108,8 +108,8 @@ BUG_ON(pud_none(*pud)); pmd = pmd_offset(pud, address); BUG_ON(pmd_val(*pmd) & _PAGE_PSE); - pgprot_val(ref_prot) |= _PAGE_PSE; large_pte = mk_pte_phys(__pa(address) & LARGE_PAGE_MASK, ref_prot); + large_pte = pte_mkhuge(large_pte); set_pte((pte_t *)pmd, large_pte); } @@ -119,32 +119,28 @@ { pte_t *kpte; struct page *kpte_page; - unsigned kpte_flags; pgprot_t ref_prot2; kpte = lookup_address(address); if (!kpte) return 0; kpte_page = virt_to_page(((unsigned long)kpte) & PAGE_MASK); - kpte_flags = pte_val(*kpte); if (pgprot_val(prot) != pgprot_val(ref_prot)) { - if ((kpte_flags & _PAGE_PSE) == 0) { + if (!pte_huge(*kpte)) { set_pte(kpte, pfn_pte(pfn, prot)); } else { /* * split_large_page will take the reference for this * change_page_attr on the split page. */ - struct page *split; - ref_prot2 = __pgprot(pgprot_val(pte_pgprot(*lookup_address(address))) & ~(1<<_PAGE_BIT_PSE)); - + ref_prot2 = pte_pgprot(pte_clrhuge(*kpte)); split = split_large_page(address, prot, ref_prot2); if (!split) return -ENOMEM; - set_pte(kpte,mk_pte(split, ref_prot2)); + set_pte(kpte, mk_pte(split, ref_prot2)); kpte_page = split; - } + } page_private(kpte_page)++; - } else if ((kpte_flags & _PAGE_PSE) == 0) { + } else if (!pte_huge(*kpte)) { set_pte(kpte, pfn_pte(pfn, ref_prot)); BUG_ON(page_private(kpte_page) == 0); page_private(kpte_page)--; @@ -190,10 +186,12 @@ * lowmem */ if (__pa(address) < KERNEL_TEXT_SIZE) { unsigned long addr2; - pgprot_t prot2 = prot; + pgprot_t prot2; addr2 = __START_KERNEL_map + __pa(address); - pgprot_val(prot2) &= ~_PAGE_NX; - err = __change_page_attr(addr2, pfn, prot2, PAGE_KERNEL_EXEC); + /* Make sure the kernel mappings stay executable */ + prot2 = pte_pgprot(pte_mkexec(pfn_pte(0, prot))); + err = __change_page_attr(addr2, pfn, prot2, + PAGE_KERNEL_EXEC); } } up_write(&init_mm.mmap_sem);
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c index 502fce6..f8c04d6 100644 --- a/arch/x86_64/mm/srat.c +++ b/arch/x86_64/mm/srat.c
@@ -21,6 +21,8 @@ #include <asm/numa.h> #include <asm/e820.h> +int acpi_numa __initdata; + #if (defined(CONFIG_ACPI_HOTPLUG_MEMORY) || \ defined(CONFIG_ACPI_HOTPLUG_MEMORY_MODULE)) \ && !defined(CONFIG_MEMORY_HOTPLUG) @@ -91,6 +93,7 @@ apicid_to_node[i] = NUMA_NO_NODE; for (i = 0; i < MAX_NUMNODES; i++) nodes_add[i].start = nodes[i].end = 0; + remove_all_active_ranges(); } static __init inline int srat_disabled(void) @@ -173,7 +176,7 @@ if (mem < 0) return 0; - allowed = (end_pfn - e820_hole_size(0, end_pfn)) * PAGE_SIZE; + allowed = (end_pfn - absent_pages_in_range(0, end_pfn)) * PAGE_SIZE; allowed = (allowed / 100) * hotadd_percent; if (allocated + mem > allowed) { unsigned long range; @@ -223,8 +226,10 @@ } /* This check might be a bit too strict, but I'm keeping it for now. */ - if (e820_hole_size(s_pfn, e_pfn) != e_pfn - s_pfn) { - printk(KERN_ERR "SRAT: Hotplug area has existing memory\n"); + if (absent_pages_in_range(s_pfn, e_pfn) != e_pfn - s_pfn) { + printk(KERN_ERR + "SRAT: Hotplug area %lu -> %lu has existing memory\n", + s_pfn, e_pfn); return -1; } @@ -317,6 +322,10 @@ printk(KERN_INFO "SRAT: Node %u PXM %u %Lx-%Lx\n", node, pxm, nd->start, nd->end); + e820_register_active_regions(node, nd->start >> PAGE_SHIFT, + nd->end >> PAGE_SHIFT); + push_node_boundaries(node, nd->start >> PAGE_SHIFT, + nd->end >> PAGE_SHIFT); #ifdef RESERVE_HOTADD if (ma->flags.hot_pluggable && reserve_hotadd(node, start, end) < 0) { @@ -341,13 +350,13 @@ unsigned long s = nodes[i].start >> PAGE_SHIFT; unsigned long e = nodes[i].end >> PAGE_SHIFT; pxmram += e - s; - pxmram -= e820_hole_size(s, e); + pxmram -= absent_pages_in_range(s, e); pxmram -= nodes_add[i].end - nodes_add[i].start; if ((long)pxmram < 0) pxmram = 0; } - e820ram = end_pfn - e820_hole_size(0, end_pfn); + e820ram = end_pfn - absent_pages_in_range(0, end_pfn); /* We seem to lose 3 pages somewhere. Allow a bit of slack. */ if ((long)(e820ram - pxmram) >= 1*1024*1024) { printk(KERN_ERR
diff --git a/arch/x86_64/pci/Makefile b/arch/x86_64/pci/Makefile index a3f6ad5..1eb18f4 100644 --- a/arch/x86_64/pci/Makefile +++ b/arch/x86_64/pci/Makefile
@@ -9,7 +9,7 @@ obj-$(CONFIG_PCI_DIRECT)+= direct.o obj-y += fixup.o init.o obj-$(CONFIG_ACPI) += acpi.o -obj-y += legacy.o irq.o common.o +obj-y += legacy.o irq.o common.o early.o # mmconfig has a 64bit special obj-$(CONFIG_PCI_MMCONFIG) += mmconfig.o direct.o @@ -23,3 +23,4 @@ fixup-y += ../../i386/pci/fixup.o i386-y += ../../i386/pci/i386.o init-y += ../../i386/pci/init.o +early-y += ../../i386/pci/early.o
diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c index 3c55c76..7732f42 100644 --- a/arch/x86_64/pci/mmconfig.c +++ b/arch/x86_64/pci/mmconfig.c
@@ -156,15 +156,45 @@ addr = pci_dev_base(0, k, PCI_DEVFN(i, 0)); if (addr == NULL|| readl(addr) != val1) { set_bit(i + 32*k, fallback_slots); - printk(KERN_NOTICE - "PCI: No mmconfig possible on device %x:%x\n", - k, i); + printk(KERN_NOTICE "PCI: No mmconfig possible" + " on device %02x:%02x\n", k, i); } } } } -void __init pci_mmcfg_init(void) +static __init void pci_mmcfg_insert_resources(void) +{ +#define PCI_MMCFG_RESOURCE_NAME_LEN 19 + int i; + struct resource *res; + char *names; + unsigned num_buses; + + res = kcalloc(PCI_MMCFG_RESOURCE_NAME_LEN + sizeof(*res), + pci_mmcfg_config_num, GFP_KERNEL); + + if (!res) { + printk(KERN_ERR "PCI: Unable to allocate MMCONFIG resources\n"); + return; + } + + names = (void *)&res[pci_mmcfg_config_num]; + for (i = 0; i < pci_mmcfg_config_num; i++, res++) { + num_buses = pci_mmcfg_config[i].end_bus_number - + pci_mmcfg_config[i].start_bus_number + 1; + res->name = names; + snprintf(names, PCI_MMCFG_RESOURCE_NAME_LEN, "PCI MMCONFIG %u", + pci_mmcfg_config[i].pci_segment_group_number); + res->start = pci_mmcfg_config[i].base_address; + res->end = res->start + (num_buses << 20) - 1; + res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + insert_resource(&iomem_resource, res); + names += PCI_MMCFG_RESOURCE_NAME_LEN; + } +} + +void __init pci_mmcfg_init(int type) { int i; @@ -177,7 +207,9 @@ (pci_mmcfg_config[0].base_address == 0)) return; - if (!e820_all_mapped(pci_mmcfg_config[0].base_address, + /* Only do this check when type 1 works. If it doesn't work + assume we run on a Mac and always use MCFG */ + if (type == 1 && !e820_all_mapped(pci_mmcfg_config[0].base_address, pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN, E820_RESERVED)) { printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n", @@ -186,7 +218,6 @@ return; } - /* RED-PEN i386 doesn't do _nocache right now */ pci_mmcfg_virt = kmalloc(sizeof(*pci_mmcfg_virt) * pci_mmcfg_config_num, GFP_KERNEL); if (pci_mmcfg_virt == NULL) { printk("PCI: Can not allocate memory for mmconfig structures\n"); @@ -205,6 +236,7 @@ } unreachable_devices(); + pci_mmcfg_insert_resources(); raw_pci_ops = &pci_mmcfg; pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;
diff --git a/block/blktrace.c b/block/blktrace.c index 265f7a8..2b4ef2b 100644 --- a/block/blktrace.c +++ b/block/blktrace.c
@@ -217,7 +217,7 @@ static int blk_dropped_open(struct inode *inode, struct file *filp) { - filp->private_data = inode->u.generic_ip; + filp->private_data = inode->i_private; return 0; }
diff --git a/drivers/acorn/char/i2c.c b/drivers/acorn/char/i2c.c index c26c08b..bdb9c8b 100644 --- a/drivers/acorn/char/i2c.c +++ b/drivers/acorn/char/i2c.c
@@ -308,7 +308,6 @@ .getsda = ioc_getsda, .getscl = ioc_getscl, .udelay = 80, - .mdelay = 80, .timeout = 100 };
diff --git a/drivers/acpi/i2c_ec.c b/drivers/acpi/i2c_ec.c index 6809c28..6342e61 100644 --- a/drivers/acpi/i2c_ec.c +++ b/drivers/acpi/i2c_ec.c
@@ -293,7 +293,7 @@ I2C_FUNC_SMBUS_I2C_BLOCK | I2C_FUNC_SMBUS_HWPEC_CALC); } -static struct i2c_algorithm acpi_ec_smbus_algorithm = { +static const struct i2c_algorithm acpi_ec_smbus_algorithm = { .smbus_xfer = acpi_ec_smb_access, .functionality = acpi_ec_smb_func, };
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 507f051..20beea7 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c
@@ -1079,7 +1079,7 @@ acpi_status acpi_os_delete_cache(acpi_cache_t * cache) { - (void)kmem_cache_destroy(cache); + kmem_cache_destroy(cache); return (AE_OK); }
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 99837d9..3f4aa0c 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig
@@ -311,7 +311,7 @@ config PATA_LEGACY tristate "Legacy ISA PATA support (Experimental)" - depends on PCI && EXPERIMENTAL + depends on ISA && EXPERIMENTAL help This option enables support for ISA/VLB bus legacy PATA ports and allows them to be accessed via the new ATA layer. @@ -400,6 +400,7 @@ config PATA_QDI tristate "QDI VLB PATA support" + depends on ISA help Support for QDI 6500 and 6580 PATA controllers on VESA local bus.
diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c index 1d1c30a..377425e 100644 --- a/drivers/ata/ata_generic.c +++ b/drivers/ata/ata_generic.c
@@ -143,7 +143,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear,
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index ab2eccc..5719704 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c
@@ -643,11 +643,9 @@ { struct pci_dev *pdev = to_pci_dev(ap->host->dev); - if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->port_no])) { - ata_port_printk(ap, KERN_INFO, "port disabled. ignoring.\n"); - ap->eh_context.i.action &= ~ATA_EH_RESET_MASK; - return 0; - } + if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->port_no])) + return -ENOENT; + ap->cbl = ATA_CBL_PATA40; return ata_std_prereset(ap); } @@ -851,7 +849,7 @@ * @ap: Port whose timings we are configuring * @adev: Drive in question * @udma: udma mode, 0 - 6 - * @is_ich: set if the chip is an ICH device + * @isich: set if the chip is an ICH device * * Set UDMA mode for device, in host controller PCI config space. *
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 753b015..b4abd68 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c
@@ -5453,6 +5453,11 @@ int rc; DPRINTK("ENTER\n"); + + if (ent->irq == 0) { + dev_printk(KERN_ERR, dev, "is not available: No interrupt assigned.\n"); + return 0; + } /* alloc a container for our list of ATA ports (buses) */ host = kzalloc(sizeof(struct ata_host) + (ent->n_ports * sizeof(void *)), GFP_KERNEL);
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 3fa80f0..02b2b27 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c
@@ -1515,7 +1515,11 @@ if (prereset) { rc = prereset(ap); if (rc) { - ata_port_printk(ap, KERN_ERR, + if (rc == -ENOENT) { + ata_port_printk(ap, KERN_DEBUG, "port disabled. ignoring.\n"); + ap->eh_context.i.action &= ~ATA_EH_RESET_MASK; + } else + ata_port_printk(ap, KERN_ERR, "prereset failed (errno=%d)\n", rc); return rc; }
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 688bb55..08b3a40 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c
@@ -881,7 +881,7 @@ probe_ent->private_data = port[0]->private_data; if (port_mask & ATA_PORT_PRIMARY) { - probe_ent->irq = 14; + probe_ent->irq = ATA_PRIMARY_IRQ; probe_ent->port[0].cmd_addr = ATA_PRIMARY_CMD; probe_ent->port[0].altstatus_addr = probe_ent->port[0].ctl_addr = ATA_PRIMARY_CTL; @@ -896,9 +896,9 @@ if (port_mask & ATA_PORT_SECONDARY) { if (probe_ent->irq) - probe_ent->irq2 = 15; + probe_ent->irq2 = ATA_SECONDARY_IRQ; else - probe_ent->irq = 15; + probe_ent->irq = ATA_SECONDARY_IRQ; probe_ent->port[1].cmd_addr = ATA_SECONDARY_CMD; probe_ent->port[1].altstatus_addr = probe_ent->port[1].ctl_addr = ATA_SECONDARY_CTL;
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c index 8448ee6..87af3b5 100644 --- a/drivers/ata/pata_ali.c +++ b/drivers/ata/pata_ali.c
@@ -369,7 +369,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -410,7 +410,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -448,7 +448,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -485,7 +485,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c index 3293cf9..599ee26 100644 --- a/drivers/ata/pata_amd.c +++ b/drivers/ata/pata_amd.c
@@ -25,7 +25,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_amd" -#define DRV_VERSION "0.2.3" +#define DRV_VERSION "0.2.4" /** * timing_setup - shared timing computation and load @@ -137,11 +137,8 @@ struct pci_dev *pdev = to_pci_dev(ap->host->dev); u8 ata66; - if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no])) + return -ENOENT; pci_read_config_byte(pdev, 0x42, &ata66); if (ata66 & bitmask[ap->port_no]) @@ -167,11 +164,9 @@ { 0x40, 1, 0x01, 0x01 } }; - if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no])) + return -ENOENT; + /* No host side cable detection */ ap->cbl = ATA_CBL_PATA80; return ata_std_prereset(ap); @@ -262,12 +257,8 @@ u8 ata66; u16 udma; - if (!pci_test_config_bits(pdev, &nv_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } - + if (!pci_test_config_bits(pdev, &nv_enable_bits[ap->port_no])) + return -ENOENT; pci_read_config_byte(pdev, 0x52, &ata66); if (ata66 & bitmask[ap->port_no]) @@ -368,7 +359,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -402,7 +393,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -436,7 +427,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -470,7 +461,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -504,7 +495,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -538,7 +529,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c index d6ef3bf..c4ccb75 100644 --- a/drivers/ata/pata_artop.c +++ b/drivers/ata/pata_artop.c
@@ -28,7 +28,7 @@ #include <linux/ata.h> #define DRV_NAME "pata_artop" -#define DRV_VERSION "0.4.1" +#define DRV_VERSION "0.4.2" /* * The ARTOP has 33 Mhz and "over clocked" timing tables. Until we @@ -47,11 +47,9 @@ { 0x4AU, 1U, 0x04UL, 0x04UL }, /* port 1 */ }; - if (!pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no])) + return -ENOENT; + ap->cbl = ATA_CBL_PATA40; return ata_std_prereset(ap); } @@ -90,11 +88,9 @@ u8 tmp; /* Odd numbered device ids are the units with enable bits (the -R cards) */ - if (pdev->device % 1 && !pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (pdev->device % 1 && !pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no])) + return -ENOENT; + pci_read_config_byte(pdev, 0x49, &tmp); if (tmp & (1 >> ap->port_no)) ap->cbl = ATA_CBL_PATA40; @@ -344,7 +340,7 @@ .bmdma_status = ata_bmdma_status, .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -379,8 +375,6 @@ .qc_issue = ata_qc_issue_prot, .data_xfer = ata_pio_data_xfer, - .eng_timeout = ata_eng_timeout, - .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear,
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c index 3f78a1e..6c2269b 100644 --- a/drivers/ata/pata_atiixp.c +++ b/drivers/ata/pata_atiixp.c
@@ -22,7 +22,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_atiixp" -#define DRV_VERSION "0.4.2" +#define DRV_VERSION "0.4.3" enum { ATIIXP_IDE_PIO_TIMING = 0x40, @@ -41,11 +41,9 @@ { 0x48, 1, 0x08, 0x00 } }; - if (!pci_test_config_bits(pdev, &atiixp_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pci_test_config_bits(pdev, &atiixp_enable_bits[ap->port_no])) + return -ENOENT; + ap->cbl = ATA_CBL_PATA80; return ata_std_prereset(ap); } @@ -244,7 +242,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c index abf1bb7..e92b0ef 100644 --- a/drivers/ata/pata_cmd64x.c +++ b/drivers/ata/pata_cmd64x.c
@@ -301,7 +301,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -335,7 +335,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -369,7 +369,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c index 792ce48..a6c6ceb 100644 --- a/drivers/ata/pata_cs5520.c +++ b/drivers/ata/pata_cs5520.c
@@ -193,8 +193,6 @@ .qc_issue = ata_qc_issue_prot, .data_xfer = ata_pio_data_xfer, - .eng_timeout = ata_eng_timeout, - .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear,
diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c index f3d8a3b..7bba4d95 100644 --- a/drivers/ata/pata_cs5530.c +++ b/drivers/ata/pata_cs5530.c
@@ -207,7 +207,7 @@ .qc_prep = ata_qc_prep, .qc_issue = cs5530_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_cs5535.c b/drivers/ata/pata_cs5535.c index 69d6b42..d64fcdc 100644 --- a/drivers/ata/pata_cs5535.c +++ b/drivers/ata/pata_cs5535.c
@@ -211,7 +211,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_cypress.c b/drivers/ata/pata_cypress.c index fd55474..dfa5ac5 100644 --- a/drivers/ata/pata_cypress.c +++ b/drivers/ata/pata_cypress.c
@@ -162,7 +162,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_efar.c b/drivers/ata/pata_efar.c index c30bc18..95cd1ca 100644 --- a/drivers/ata/pata_efar.c +++ b/drivers/ata/pata_efar.c
@@ -22,7 +22,7 @@ #include <linux/ata.h> #define DRV_NAME "pata_efar" -#define DRV_VERSION "0.4.1" +#define DRV_VERSION "0.4.2" /** * efar_pre_reset - check for 40/80 pin @@ -42,11 +42,9 @@ struct pci_dev *pdev = to_pci_dev(ap->host->dev); u8 tmp; - if (!pci_test_config_bits(pdev, &efar_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pci_test_config_bits(pdev, &efar_enable_bits[ap->port_no])) + return -ENOENT; + pci_read_config_byte(pdev, 0x47, &tmp); if (tmp & (2 >> ap->port_no)) ap->cbl = ATA_CBL_PATA40; @@ -263,8 +261,6 @@ .qc_issue = ata_qc_issue_prot, .data_xfer = ata_pio_data_xfer, - .eng_timeout = ata_eng_timeout, - .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear,
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c index 94bb1df..cf656ec 100644 --- a/drivers/ata/pata_hpt366.c +++ b/drivers/ata/pata_hpt366.c
@@ -360,7 +360,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c index 532a792..10318c0 100644 --- a/drivers/ata/pata_hpt37x.c +++ b/drivers/ata/pata_hpt37x.c
@@ -793,7 +793,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -832,7 +832,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -872,7 +872,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -912,7 +912,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_hpt3x2n.c b/drivers/ata/pata_hpt3x2n.c index 06c8db0..5c5d4f6 100644 --- a/drivers/ata/pata_hpt3x2n.c +++ b/drivers/ata/pata_hpt3x2n.c
@@ -372,7 +372,7 @@ .qc_prep = ata_qc_prep, .qc_issue = hpt3x2n_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_hpt3x3.c b/drivers/ata/pata_hpt3x3.c index 1527701..1f084ab 100644 --- a/drivers/ata/pata_hpt3x3.c +++ b/drivers/ata/pata_hpt3x3.c
@@ -145,7 +145,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c index 73948c8..640b8b0 100644 --- a/drivers/ata/pata_isapnp.c +++ b/drivers/ata/pata_isapnp.c
@@ -52,7 +52,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c index af39097..82a46ff 100644 --- a/drivers/ata/pata_it821x.c +++ b/drivers/ata/pata_it821x.c
@@ -703,7 +703,7 @@ .qc_prep = ata_qc_prep, .qc_issue = it821x_smart_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -739,7 +739,7 @@ .qc_prep = ata_qc_prep, .qc_issue = it821x_passthru_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_clear = ata_bmdma_irq_clear,
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c index 6832a64..be3a866 100644 --- a/drivers/ata/pata_jmicron.c +++ b/drivers/ata/pata_jmicron.c
@@ -51,7 +51,7 @@ /* Check if our port is enabled */ pci_read_config_dword(pdev, 0x40, &control); if ((control & port_mask) == 0) - return 0; + return -ENOENT; /* There are two basic mappings. One has the two SATA ports merged as master/slave and the secondary as PATA, the other has only the @@ -164,8 +164,7 @@ .qc_issue = ata_qc_issue_prot, .data_xfer = ata_pio_data_xfer, - /* Timeout handling. Special recovery hooks here */ - .eng_timeout = ata_eng_timeout, + /* IRQ-related hooks */ .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear,
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c index ad37c22..10231ef 100644 --- a/drivers/ata/pata_legacy.c +++ b/drivers/ata/pata_legacy.c
@@ -161,7 +161,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer_noirq, .irq_handler = ata_interrupt, @@ -186,7 +186,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer_noirq, .irq_handler = ata_interrupt, @@ -296,7 +296,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = pdc_data_xfer_vlb, .irq_handler = ata_interrupt, @@ -348,7 +348,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, /* Check vlb/noirq */ .irq_handler = ata_interrupt, @@ -411,7 +411,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, /* FIXME: Check 32bit and noirq */ .irq_handler = ata_interrupt, @@ -529,7 +529,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -659,7 +659,7 @@ .qc_prep = ata_qc_prep, .qc_issue = opti82c46x_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_mpiix.c b/drivers/ata/pata_mpiix.c index 1958c4e..3c65393 100644 --- a/drivers/ata/pata_mpiix.c +++ b/drivers/ata/pata_mpiix.c
@@ -18,7 +18,7 @@ * The driver conciously keeps this logic internally to avoid pushing quirky * PATA history into the clean libata layer. * - * Thinkpad specific note: If you boot an MPIIX using thinkpad with a PCMCIA + * Thinkpad specific note: If you boot an MPIIX using a thinkpad with a PCMCIA * hard disk present this driver will not detect it. This is not a bug. In this * configuration the secondary port of the MPIIX is disabled and the addresses * are decoded by the PCMCIA bridge and therefore are for a generic IDE driver @@ -35,7 +35,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_mpiix" -#define DRV_VERSION "0.7.1" +#define DRV_VERSION "0.7.2" enum { IDETIM = 0x6C, /* IDE control register */ @@ -54,11 +54,8 @@ { 0x6F, 1, 0x80, 0x80 } }; - if (!pci_test_config_bits(pdev, &mpiix_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pci_test_config_bits(pdev, &mpiix_enable_bits[ap->port_no])) + return -ENOENT; ap->cbl = ATA_CBL_PATA40; return ata_std_prereset(ap); }
diff --git a/drivers/ata/pata_netcell.c b/drivers/ata/pata_netcell.c index 16cb254..76eb9c9 100644 --- a/drivers/ata/pata_netcell.c +++ b/drivers/ata/pata_netcell.c
@@ -90,8 +90,7 @@ .qc_issue = ata_qc_issue_prot, .data_xfer = ata_pio_data_xfer, - /* Timeout handling. Special recovery hooks here */ - .eng_timeout = ata_eng_timeout, + /* IRQ-related hooks */ .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear,
diff --git a/drivers/ata/pata_ns87410.c b/drivers/ata/pata_ns87410.c index 93d6646..2005a95 100644 --- a/drivers/ata/pata_ns87410.c +++ b/drivers/ata/pata_ns87410.c
@@ -45,11 +45,8 @@ { 0x47, 1, 0x08, 0x08 } }; - if (!pci_test_config_bits(pdev, &ns87410_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pci_test_config_bits(pdev, &ns87410_enable_bits[ap->port_no])) + return -ENOENT; ap->cbl = ATA_CBL_PATA40; return ata_std_prereset(ap); } @@ -179,7 +176,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ns87410_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_oldpiix.c b/drivers/ata/pata_oldpiix.c index 04c618a..31a285c 100644 --- a/drivers/ata/pata_oldpiix.c +++ b/drivers/ata/pata_oldpiix.c
@@ -25,7 +25,7 @@ #include <linux/ata.h> #define DRV_NAME "pata_oldpiix" -#define DRV_VERSION "0.5.1" +#define DRV_VERSION "0.5.2" /** * oldpiix_pre_reset - probe begin @@ -42,11 +42,8 @@ { 0x43U, 1U, 0x80UL, 0x80UL }, /* port 1 */ }; - if (!pci_test_config_bits(pdev, &oldpiix_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pci_test_config_bits(pdev, &oldpiix_enable_bits[ap->port_no])) + return -ENOENT; ap->cbl = ATA_CBL_PATA40; return ata_std_prereset(ap); }
diff --git a/drivers/ata/pata_opti.c b/drivers/ata/pata_opti.c index c3d0132..57fe21f 100644 --- a/drivers/ata/pata_opti.c +++ b/drivers/ata/pata_opti.c
@@ -34,7 +34,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_opti" -#define DRV_VERSION "0.2.4" +#define DRV_VERSION "0.2.5" enum { READ_REG = 0, /* index of Read cycle timing register */ @@ -59,11 +59,9 @@ { 0x40, 1, 0x08, 0x00 } }; - if (!pci_test_config_bits(pdev, &opti_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pci_test_config_bits(pdev, &opti_enable_bits[ap->port_no])) + return -ENOENT; + ap->cbl = ATA_CBL_PATA40; return ata_std_prereset(ap); } @@ -229,7 +227,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_optidma.c b/drivers/ata/pata_optidma.c index 177a455..7296a20 100644 --- a/drivers/ata/pata_optidma.c +++ b/drivers/ata/pata_optidma.c
@@ -33,7 +33,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_optidma" -#define DRV_VERSION "0.2.1" +#define DRV_VERSION "0.2.2" enum { READ_REG = 0, /* index of Read cycle timing register */ @@ -59,11 +59,9 @@ 0x40, 1, 0x08, 0x00 }; - if (ap->port_no && !pci_test_config_bits(pdev, &optidma_enable_bits)) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (ap->port_no && !pci_test_config_bits(pdev, &optidma_enable_bits)) + return -ENOENT; + ap->cbl = ATA_CBL_PATA40; return ata_std_prereset(ap); } @@ -388,7 +386,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -423,7 +421,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c index 62b25cd..cb501e1 100644 --- a/drivers/ata/pata_pcmcia.c +++ b/drivers/ata/pata_pcmcia.c
@@ -87,7 +87,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer_noirq, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c index 31ab9c8..bd4ed67 100644 --- a/drivers/ata/pata_pdc2027x.c +++ b/drivers/ata/pata_pdc2027x.c
@@ -36,7 +36,7 @@ #include <asm/io.h> #define DRV_NAME "pata_pdc2027x" -#define DRV_VERSION "0.74-ac3" +#define DRV_VERSION "0.74-ac5" #undef PDC_DEBUG #ifdef PDC_DEBUG @@ -311,10 +311,8 @@ static int pdc2027x_prereset(struct ata_port *ap) { /* Check whether port enabled */ - if (!pdc2027x_port_enabled(ap)) { - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pdc2027x_port_enabled(ap)) + return -ENOENT; pdc2027x_cbl_detect(ap); return ata_std_prereset(ap); }
diff --git a/drivers/ata/pata_qdi.c b/drivers/ata/pata_qdi.c index 35cfdf0a..7977f47 100644 --- a/drivers/ata/pata_qdi.c +++ b/drivers/ata/pata_qdi.c
@@ -184,7 +184,7 @@ .qc_prep = ata_qc_prep, .qc_issue = qdi_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = qdi_data_xfer, .irq_handler = ata_interrupt, @@ -212,7 +212,7 @@ .qc_prep = ata_qc_prep, .qc_issue = qdi_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = qdi_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_radisys.c b/drivers/ata/pata_radisys.c index 277f841..c20bcf4 100644 --- a/drivers/ata/pata_radisys.c +++ b/drivers/ata/pata_radisys.c
@@ -255,8 +255,6 @@ .qc_issue = radisys_qc_issue_prot, .data_xfer = ata_pio_data_xfer, - .eng_timeout = ata_eng_timeout, - .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear,
diff --git a/drivers/ata/pata_rz1000.c b/drivers/ata/pata_rz1000.c index 3c6d84f..eccc6fd 100644 --- a/drivers/ata/pata_rz1000.c +++ b/drivers/ata/pata_rz1000.c
@@ -112,7 +112,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .freeze = ata_bmdma_freeze,
diff --git a/drivers/ata/pata_sc1200.c b/drivers/ata/pata_sc1200.c index 4166c1a..107e6cd 100644 --- a/drivers/ata/pata_sc1200.c +++ b/drivers/ata/pata_sc1200.c
@@ -217,7 +217,7 @@ .qc_prep = ata_qc_prep, .qc_issue = sc1200_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c index af45611..a5c8d7e 100644 --- a/drivers/ata/pata_serverworks.c +++ b/drivers/ata/pata_serverworks.c
@@ -41,7 +41,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_serverworks" -#define DRV_VERSION "0.3.6" +#define DRV_VERSION "0.3.7" #define SVWKS_CSB5_REVISION_NEW 0x92 /* min PCI_REVISION_ID for UDMA5 (A2.0) */ #define SVWKS_CSB6_REVISION 0xa0 /* min PCI_REVISION_ID for UDMA4 (A1.0) */ @@ -128,7 +128,7 @@ { PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_VENDOR_ID_DELL, dell_cable }, { PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_VENDOR_ID_DELL, dell_cable }, { PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_VENDOR_ID_SUN, sun_cable }, - { PCI_DEVICE_ID_SERVERWORKS_OSB4, PCI_ANY_ID, osb4_cable }, + { PCI_DEVICE_ID_SERVERWORKS_OSB4IDE, PCI_ANY_ID, osb4_cable }, { PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_ANY_ID, csb_cable }, { PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_ANY_ID, csb_cable }, { PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2, PCI_ANY_ID, csb_cable }, @@ -352,10 +352,12 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, + .irq_clear = ata_bmdma_irq_clear, + .port_start = ata_port_start, .port_stop = ata_port_stop, .host_stop = ata_host_stop @@ -385,10 +387,12 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, + .irq_clear = ata_bmdma_irq_clear, + .port_start = ata_port_start, .port_stop = ata_port_stop, .host_stop = ata_host_stop
diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c index 8f7db96..c8b2e26 100644 --- a/drivers/ata/pata_sil680.c +++ b/drivers/ata/pata_sil680.c
@@ -251,7 +251,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c index 2e555168..17791e2 100644 --- a/drivers/ata/pata_sis.c +++ b/drivers/ata/pata_sis.c
@@ -34,7 +34,7 @@ #include <linux/ata.h> #define DRV_NAME "pata_sis" -#define DRV_VERSION "0.4.3" +#define DRV_VERSION "0.4.4" struct sis_chipset { u16 device; /* PCI host ID */ @@ -74,11 +74,9 @@ struct pci_dev *pdev = to_pci_dev(ap->host->dev); u16 tmp; - if (!pci_test_config_bits(pdev, &sis_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pci_test_config_bits(pdev, &sis_enable_bits[ap->port_no])) + return -ENOENT; + /* The top bit of this register is the cable detect bit */ pci_read_config_word(pdev, 0x50 + 2 * ap->port_no, &tmp); if (tmp & 0x8000) @@ -575,8 +573,6 @@ .qc_issue = ata_qc_issue_prot, .data_xfer = ata_pio_data_xfer, - .eng_timeout = ata_eng_timeout, - .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear, @@ -610,8 +606,6 @@ .qc_issue = ata_qc_issue_prot, .data_xfer = ata_pio_data_xfer, - .eng_timeout = ata_eng_timeout, - .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear, @@ -646,8 +640,6 @@ .qc_issue = ata_qc_issue_prot, .data_xfer = ata_pio_data_xfer, - .eng_timeout = ata_eng_timeout, - .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear, @@ -681,8 +673,6 @@ .qc_issue = ata_qc_issue_prot, .data_xfer = ata_pio_data_xfer, - .eng_timeout = ata_eng_timeout, - .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear, @@ -716,8 +706,6 @@ .qc_issue = ata_qc_issue_prot, .data_xfer = ata_pio_data_xfer, - .eng_timeout = ata_eng_timeout, - .irq_handler = ata_interrupt, .irq_clear = ata_bmdma_irq_clear,
diff --git a/drivers/ata/pata_sl82c105.c b/drivers/ata/pata_sl82c105.c index f849978..5b762ac 100644 --- a/drivers/ata/pata_sl82c105.c +++ b/drivers/ata/pata_sl82c105.c
@@ -19,7 +19,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_sl82c105" -#define DRV_VERSION "0.2.2" +#define DRV_VERSION "0.2.3" enum { /* @@ -49,11 +49,8 @@ }; struct pci_dev *pdev = to_pci_dev(ap->host->dev); - if (ap->port_no && !pci_test_config_bits(pdev, &sl82c105_enable_bits[ap->port_no])) { - ata_port_disable(ap); - dev_printk(KERN_INFO, &pdev->dev, "port disabled. ignoring.\n"); - return 0; - } + if (ap->port_no && !pci_test_config_bits(pdev, &sl82c105_enable_bits[ap->port_no])) + return -ENOENT; ap->cbl = ATA_CBL_PATA40; return ata_std_prereset(ap); } @@ -264,7 +261,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_triflex.c b/drivers/ata/pata_triflex.c index 36f7887..a954ed9 100644 --- a/drivers/ata/pata_triflex.c +++ b/drivers/ata/pata_triflex.c
@@ -46,13 +46,13 @@ #define DRV_VERSION "0.2.5" /** - * triflex_probe_init - probe begin + * triflex_prereset - probe begin * @ap: ATA port * * Set up cable type and use generic probe init */ -static int triflex_probe_init(struct ata_port *ap) +static int triflex_prereset(struct ata_port *ap) { static const struct pci_bits triflex_enable_bits[] = { { 0x80, 1, 0x01, 0x01 }, @@ -61,11 +61,8 @@ struct pci_dev *pdev = to_pci_dev(ap->host->dev); - if (!pci_test_config_bits(pdev, &triflex_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pci_test_config_bits(pdev, &triflex_enable_bits[ap->port_no])) + return -ENOENT; ap->cbl = ATA_CBL_PATA40; return ata_std_prereset(ap); } @@ -74,7 +71,7 @@ static void triflex_error_handler(struct ata_port *ap) { - ata_bmdma_drive_eh(ap, triflex_probe_init, ata_std_softreset, NULL, ata_std_postreset); + ata_bmdma_drive_eh(ap, triflex_prereset, ata_std_softreset, NULL, ata_std_postreset); } /** @@ -221,7 +218,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c index 1b2ff13..7b5dd23 100644 --- a/drivers/ata/pata_via.c +++ b/drivers/ata/pata_via.c
@@ -60,7 +60,7 @@ #include <linux/libata.h> #define DRV_NAME "pata_via" -#define DRV_VERSION "0.1.13" +#define DRV_VERSION "0.1.14" /* * The following comes directly from Vojtech Pavlik's ide/pci/via82cxxx @@ -155,11 +155,8 @@ struct pci_dev *pdev = to_pci_dev(ap->host->dev); - if (!pci_test_config_bits(pdev, &via_enable_bits[ap->port_no])) { - ata_port_disable(ap); - printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id); - return 0; - } + if (!pci_test_config_bits(pdev, &via_enable_bits[ap->port_no])) + return -ENOENT; } if ((config->flags & VIA_UDMA) >= VIA_UDMA_66) @@ -325,7 +322,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer, .irq_handler = ata_interrupt, @@ -360,7 +357,7 @@ .qc_prep = ata_qc_prep, .qc_issue = ata_qc_issue_prot, - .eng_timeout = ata_eng_timeout, + .data_xfer = ata_pio_data_xfer_noirq, .irq_handler = ata_interrupt,
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index fdce6e0..c01496d 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c
@@ -463,6 +463,7 @@ .qc_prep = mv_qc_prep_iie, .qc_issue = mv_qc_issue, + .data_xfer = ata_mmio_data_xfer, .eng_timeout = mv_eng_timeout,
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 27c22fe..8cd730f 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c
@@ -484,7 +484,7 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) { static int printed_version = 0; - struct ata_port_info *ppi; + struct ata_port_info *ppi[2]; struct ata_probe_ent *probe_ent; int pci_dev_busy = 0; int rc; @@ -520,8 +520,8 @@ rc = -ENOMEM; - ppi = &nv_port_info[ent->driver_data]; - probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); + ppi[0] = ppi[1] = &nv_port_info[ent->driver_data]; + probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); if (!probe_ent) goto err_out_regions;
diff --git a/drivers/ata/sata_sis.c b/drivers/ata/sata_sis.c index 9b17375..18d49ff 100644 --- a/drivers/ata/sata_sis.c +++ b/drivers/ata/sata_sis.c
@@ -240,7 +240,7 @@ struct ata_probe_ent *probe_ent = NULL; int rc; u32 genctl; - struct ata_port_info *ppi; + struct ata_port_info *ppi[2]; int pci_dev_busy = 0; u8 pmr; u8 port2_start; @@ -265,8 +265,8 @@ if (rc) goto err_out_regions; - ppi = &sis_port_info; - probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); + ppi[0] = ppi[1] = &sis_port_info; + probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); if (!probe_ent) { rc = -ENOMEM; goto err_out_regions;
diff --git a/drivers/ata/sata_uli.c b/drivers/ata/sata_uli.c index 8fc6e80..dd76f37 100644 --- a/drivers/ata/sata_uli.c +++ b/drivers/ata/sata_uli.c
@@ -185,7 +185,7 @@ { static int printed_version; struct ata_probe_ent *probe_ent; - struct ata_port_info *ppi; + struct ata_port_info *ppi[2]; int rc; unsigned int board_idx = (unsigned int) ent->driver_data; int pci_dev_busy = 0; @@ -211,8 +211,8 @@ if (rc) goto err_out_regions; - ppi = &uli_port_info; - probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); + ppi[0] = ppi[1] = &uli_port_info; + probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); if (!probe_ent) { rc = -ENOMEM; goto err_out_regions;
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index 7f087ae..a72a238 100644 --- a/drivers/ata/sata_via.c +++ b/drivers/ata/sata_via.c
@@ -318,9 +318,10 @@ static struct ata_probe_ent *vt6420_init_probe_ent(struct pci_dev *pdev) { struct ata_probe_ent *probe_ent; - struct ata_port_info *ppi = &vt6420_port_info; - - probe_ent = ata_pci_init_native_mode(pdev, &ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); + struct ata_port_info *ppi[2]; + + ppi[0] = ppi[1] = &vt6420_port_info; + probe_ent = ata_pci_init_native_mode(pdev, ppi, ATA_PORT_PRIMARY | ATA_PORT_SECONDARY); if (!probe_ent) return NULL;
diff --git a/drivers/atm/he.c b/drivers/atm/he.c index 41e052f..f2511b4 100644 --- a/drivers/atm/he.c +++ b/drivers/atm/he.c
@@ -454,7 +454,7 @@ return (NONZERO | (exp << 9) | (rate & 0x1ff)); } -static void __init +static void __devinit he_init_rx_lbfp0(struct he_dev *he_dev) { unsigned i, lbm_offset, lbufd_index, lbuf_addr, lbuf_count; @@ -485,7 +485,7 @@ he_writel(he_dev, he_dev->r0_numbuffs, RLBF0_C); } -static void __init +static void __devinit he_init_rx_lbfp1(struct he_dev *he_dev) { unsigned i, lbm_offset, lbufd_index, lbuf_addr, lbuf_count; @@ -516,7 +516,7 @@ he_writel(he_dev, he_dev->r1_numbuffs, RLBF1_C); } -static void __init +static void __devinit he_init_tx_lbfp(struct he_dev *he_dev) { unsigned i, lbm_offset, lbufd_index, lbuf_addr, lbuf_count; @@ -546,7 +546,7 @@ he_writel(he_dev, lbufd_index - 1, TLBF_T); } -static int __init +static int __devinit he_init_tpdrq(struct he_dev *he_dev) { he_dev->tpdrq_base = pci_alloc_consistent(he_dev->pci_dev, @@ -568,7 +568,7 @@ return 0; } -static void __init +static void __devinit he_init_cs_block(struct he_dev *he_dev) { unsigned clock, rate, delta; @@ -664,7 +664,7 @@ } -static int __init +static int __devinit he_init_cs_block_rcm(struct he_dev *he_dev) { unsigned (*rategrid)[16][16]; @@ -785,7 +785,7 @@ return 0; } -static int __init +static int __devinit he_init_group(struct he_dev *he_dev, int group) { int i; @@ -955,7 +955,7 @@ return 0; } -static int __init +static int __devinit he_init_irq(struct he_dev *he_dev) { int i;
diff --git a/drivers/base/base.h b/drivers/base/base.h index c3b8dc9..d26644a 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h
@@ -16,7 +16,7 @@ extern int attribute_container_init(void); extern int bus_add_device(struct device * dev); -extern void bus_attach_device(struct device * dev); +extern int bus_attach_device(struct device * dev); extern void bus_remove_device(struct device * dev); extern struct bus_type *get_bus(struct bus_type * bus); extern void put_bus(struct bus_type * bus);
diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 2e954d0..12173d1 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c
@@ -371,12 +371,20 @@ if (bus) { pr_debug("bus %s: add device %s\n", bus->name, dev->bus_id); error = device_add_attrs(bus, dev); - if (!error) { - sysfs_create_link(&bus->devices.kobj, &dev->kobj, dev->bus_id); - sysfs_create_link(&dev->kobj, &dev->bus->subsys.kset.kobj, "subsystem"); - sysfs_create_link(&dev->kobj, &dev->bus->subsys.kset.kobj, "bus"); - } + if (error) + goto out; + error = sysfs_create_link(&bus->devices.kobj, + &dev->kobj, dev->bus_id); + if (error) + goto out; + error = sysfs_create_link(&dev->kobj, + &dev->bus->subsys.kset.kobj, "subsystem"); + if (error) + goto out; + error = sysfs_create_link(&dev->kobj, + &dev->bus->subsys.kset.kobj, "bus"); } +out: return error; } @@ -384,16 +392,24 @@ * bus_attach_device - add device to bus * @dev: device tried to attach to a driver * + * - Add device to bus's list of devices. * - Try to attach to driver. */ -void bus_attach_device(struct device * dev) +int bus_attach_device(struct device * dev) { - struct bus_type * bus = dev->bus; + struct bus_type *bus = dev->bus; + int ret = 0; if (bus) { - device_attach(dev); - klist_add_tail(&dev->knode_bus, &bus->klist_devices); + dev->is_registered = 1; + ret = device_attach(dev); + if (ret >= 0) { + klist_add_tail(&dev->knode_bus, &bus->klist_devices); + ret = 0; + } else + dev->is_registered = 0; } + return ret; } /** @@ -412,7 +428,8 @@ sysfs_remove_link(&dev->kobj, "bus"); sysfs_remove_link(&dev->bus->devices.kobj, dev->bus_id); device_remove_attrs(dev->bus, dev); - klist_remove(&dev->knode_bus); + dev->is_registered = 0; + klist_del(&dev->knode_bus); pr_debug("bus %s: remove device %s\n", dev->bus->name, dev->bus_id); device_release_driver(dev); put_bus(dev->bus); @@ -455,10 +472,17 @@ * Thanks to drivers making their tables __devinit, we can't allow manual * bind and unbind from userspace unless CONFIG_HOTPLUG is enabled. */ -static void add_bind_files(struct device_driver *drv) +static int __must_check add_bind_files(struct device_driver *drv) { - driver_create_file(drv, &driver_attr_unbind); - driver_create_file(drv, &driver_attr_bind); + int ret; + + ret = driver_create_file(drv, &driver_attr_unbind); + if (ret == 0) { + ret = driver_create_file(drv, &driver_attr_bind); + if (ret) + driver_remove_file(drv, &driver_attr_unbind); + } + return ret; } static void remove_bind_files(struct device_driver *drv) @@ -467,7 +491,7 @@ driver_remove_file(drv, &driver_attr_unbind); } #else -static inline void add_bind_files(struct device_driver *drv) {} +static inline int add_bind_files(struct device_driver *drv) { return 0; } static inline void remove_bind_files(struct device_driver *drv) {} #endif @@ -476,7 +500,7 @@ * @drv: driver. * */ -int bus_add_driver(struct device_driver * drv) +int bus_add_driver(struct device_driver *drv) { struct bus_type * bus = get_bus(drv->bus); int error = 0; @@ -484,27 +508,39 @@ if (bus) { pr_debug("bus %s: add driver %s\n", bus->name, drv->name); error = kobject_set_name(&drv->kobj, "%s", drv->name); - if (error) { - put_bus(bus); - return error; - } + if (error) + goto out_put_bus; drv->kobj.kset = &bus->drivers; - if ((error = kobject_register(&drv->kobj))) { - put_bus(bus); - return error; - } + if ((error = kobject_register(&drv->kobj))) + goto out_put_bus; - driver_attach(drv); + error = driver_attach(drv); + if (error) + goto out_unregister; klist_add_tail(&drv->knode_bus, &bus->klist_drivers); module_add_driver(drv->owner, drv); - driver_add_attrs(bus, drv); - add_bind_files(drv); + error = driver_add_attrs(bus, drv); + if (error) { + /* How the hell do we get out of this pickle? Give up */ + printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n", + __FUNCTION__, drv->name); + } + error = add_bind_files(drv); + if (error) { + /* Ditto */ + printk(KERN_ERR "%s: add_bind_files(%s) failed\n", + __FUNCTION__, drv->name); + } } return error; +out_unregister: + kobject_unregister(&drv->kobj); +out_put_bus: + put_bus(bus); + return error; } - /** * bus_remove_driver - delete driver from bus's knowledge. * @drv: driver. @@ -530,16 +566,21 @@ /* Helper for bus_rescan_devices's iter */ -static int bus_rescan_devices_helper(struct device *dev, void *data) +static int __must_check bus_rescan_devices_helper(struct device *dev, + void *data) { + int ret = 0; + if (!dev->driver) { if (dev->parent) /* Needed for USB */ down(&dev->parent->sem); - device_attach(dev); + ret = device_attach(dev); if (dev->parent) up(&dev->parent->sem); + if (ret > 0) + ret = 0; } - return 0; + return ret < 0 ? ret : 0; } /** @@ -550,9 +591,9 @@ * attached and rescan it against existing drivers to see if it matches * any by calling device_attach() for the unbound devices. */ -void bus_rescan_devices(struct bus_type * bus) +int bus_rescan_devices(struct bus_type * bus) { - bus_for_each_dev(bus, NULL, NULL, bus_rescan_devices_helper); + return bus_for_each_dev(bus, NULL, NULL, bus_rescan_devices_helper); } /** @@ -564,7 +605,7 @@ * to use if probing criteria changed during a devices lifetime and * driver attachment should change accordingly. */ -void device_reprobe(struct device *dev) +int device_reprobe(struct device *dev) { if (dev->driver) { if (dev->parent) /* Needed for USB */ @@ -573,14 +614,14 @@ if (dev->parent) up(&dev->parent->sem); } - - bus_rescan_devices_helper(dev, NULL); + return bus_rescan_devices_helper(dev, NULL); } EXPORT_SYMBOL_GPL(device_reprobe); -struct bus_type * get_bus(struct bus_type * bus) +struct bus_type *get_bus(struct bus_type *bus) { - return bus ? container_of(subsys_get(&bus->subsys), struct bus_type, subsys) : NULL; + return bus ? container_of(subsys_get(&bus->subsys), + struct bus_type, subsys) : NULL; } void put_bus(struct bus_type * bus) @@ -655,22 +696,6 @@ put_device(dev); } -static void klist_drivers_get(struct klist_node *n) -{ - struct device_driver *drv = container_of(n, struct device_driver, - knode_bus); - - get_driver(drv); -} - -static void klist_drivers_put(struct klist_node *n) -{ - struct device_driver *drv = container_of(n, struct device_driver, - knode_bus); - - put_driver(drv); -} - /** * bus_register - register a bus with the system. * @bus: bus. @@ -706,7 +731,7 @@ goto bus_drivers_fail; klist_init(&bus->klist_devices, klist_devices_get, klist_devices_put); - klist_init(&bus->klist_drivers, klist_drivers_get, klist_drivers_put); + klist_init(&bus->klist_drivers, NULL, NULL); bus_add_attrs(bus); pr_debug("bus type '%s' registered\n", bus->name);
diff --git a/drivers/base/class.c b/drivers/base/class.c index de89083..b06b0e2 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c
@@ -19,6 +19,8 @@ #include <linux/slab.h> #include "base.h" +extern struct subsystem devices_subsys; + #define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr) #define to_class(obj) container_of(obj, struct class, subsys.kset.kobj) @@ -197,7 +199,7 @@ * Note, the pointer created here is to be destroyed when finished by * making a call to class_destroy(). */ -struct class *class_create(struct module *owner, char *name) +struct class *class_create(struct module *owner, const char *name) { struct class *cls; int retval; @@ -361,7 +363,7 @@ pr_debug("%s - name = %s\n", __FUNCTION__, class_dev->class_id); if (class_dev->dev) { - /* add physical device, backing this device */ + /* add device, backing this class device (deprecated) */ struct device *dev = class_dev->dev; char *path = kobject_get_path(&dev->kobj, GFP_KERNEL); @@ -679,7 +681,8 @@ struct class_device *class_device_create(struct class *cls, struct class_device *parent, dev_t devt, - struct device *device, char *fmt, ...) + struct device *device, + const char *fmt, ...) { va_list args; struct class_device *class_dev = NULL; @@ -839,6 +842,7 @@ { struct class *parent; struct class_device *class_dev; + struct device *dev; if (!class_intf || !class_intf->class) return -ENODEV; @@ -853,6 +857,10 @@ list_for_each_entry(class_dev, &parent->children, node) class_intf->add(class_dev, class_intf); } + if (class_intf->add_dev) { + list_for_each_entry(dev, &parent->devices, node) + class_intf->add_dev(dev, class_intf); + } up(&parent->sem); return 0; @@ -862,6 +870,7 @@ { struct class * parent = class_intf->class; struct class_device *class_dev; + struct device *dev; if (!parent) return; @@ -872,12 +881,31 @@ list_for_each_entry(class_dev, &parent->children, node) class_intf->remove(class_dev, class_intf); } + if (class_intf->remove_dev) { + list_for_each_entry(dev, &parent->devices, node) + class_intf->remove_dev(dev, class_intf); + } up(&parent->sem); class_put(parent); } +int virtual_device_parent(struct device *dev) +{ + if (!dev->class) + return -ENODEV; + if (!dev->class->virtual_dir) { + static struct kobject *virtual_dir = NULL; + + if (!virtual_dir) + virtual_dir = kobject_add_dir(&devices_subsys.kset.kobj, "virtual"); + dev->class->virtual_dir = kobject_add_dir(virtual_dir, dev->class->name); + } + + dev->kobj.parent = dev->class->virtual_dir; + return 0; +} int __init classes_init(void) {
diff --git a/drivers/base/core.c b/drivers/base/core.c index be6b5bc..b224bb4 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c
@@ -3,6 +3,8 @@ * * Copyright (c) 2002-3 Patrick Mochel * Copyright (c) 2002-3 Open Source Development Labs + * Copyright (c) 2006 Greg Kroah-Hartman <gregkh@suse.de> + * Copyright (c) 2006 Novell, Inc. * * This file is released under the GPLv2 * @@ -92,6 +94,8 @@ if (dev->release) dev->release(dev); + else if (dev->class && dev->class->dev_release) + dev->class->dev_release(dev); else { printk(KERN_ERR "Device '%s' does not have a release() function, " "it is broken and must be fixed.\n", @@ -149,17 +153,21 @@ "MINOR=%u", MINOR(dev->devt)); } - /* add bus name of physical device */ + /* add bus name (same as SUBSYSTEM, deprecated) */ if (dev->bus) add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, "PHYSDEVBUS=%s", dev->bus->name); - /* add driver name of physical device */ - if (dev->driver) + /* add driver name (PHYSDEV* values are deprecated)*/ + if (dev->driver) { + add_uevent_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "DRIVER=%s", dev->driver->name); add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, "PHYSDEVDRIVER=%s", dev->driver->name); + } /* terminate, set to next free slot, shrink available space */ envp[i] = NULL; @@ -177,6 +185,15 @@ } } + if (dev->class && dev->class->dev_uevent) { + /* have the class specific function add its stuff */ + retval = dev->class->dev_uevent(dev, envp, num_envp, buffer, buffer_size); + if (retval) { + pr_debug("%s - dev_uevent() returned %d\n", + __FUNCTION__, retval); + } + } + return retval; } @@ -193,6 +210,72 @@ return count; } +static int device_add_groups(struct device *dev) +{ + int i; + int error = 0; + + if (dev->groups) { + for (i = 0; dev->groups[i]; i++) { + error = sysfs_create_group(&dev->kobj, dev->groups[i]); + if (error) { + while (--i >= 0) + sysfs_remove_group(&dev->kobj, dev->groups[i]); + goto out; + } + } + } +out: + return error; +} + +static void device_remove_groups(struct device *dev) +{ + int i; + if (dev->groups) { + for (i = 0; dev->groups[i]; i++) { + sysfs_remove_group(&dev->kobj, dev->groups[i]); + } + } +} + +static int device_add_attrs(struct device *dev) +{ + struct class *class = dev->class; + int error = 0; + int i; + + if (!class) + return 0; + + if (class->dev_attrs) { + for (i = 0; attr_name(class->dev_attrs[i]); i++) { + error = device_create_file(dev, &class->dev_attrs[i]); + if (error) + break; + } + } + if (error) + while (--i >= 0) + device_remove_file(dev, &class->dev_attrs[i]); + return error; +} + +static void device_remove_attrs(struct device *dev) +{ + struct class *class = dev->class; + int i; + + if (!class) + return; + + if (class->dev_attrs) { + for (i = 0; attr_name(class->dev_attrs[i]); i++) + device_remove_file(dev, &class->dev_attrs[i]); + } +} + + static ssize_t show_dev(struct device *dev, struct device_attribute *attr, char *buf) { @@ -236,6 +319,32 @@ } } +/** + * device_create_bin_file - create sysfs binary attribute file for device. + * @dev: device. + * @attr: device binary attribute descriptor. + */ +int device_create_bin_file(struct device *dev, struct bin_attribute *attr) +{ + int error = -EINVAL; + if (dev) + error = sysfs_create_bin_file(&dev->kobj, attr); + return error; +} +EXPORT_SYMBOL_GPL(device_create_bin_file); + +/** + * device_remove_bin_file - remove sysfs binary attribute file + * @dev: device. + * @attr: device binary attribute descriptor. + */ +void device_remove_bin_file(struct device *dev, struct bin_attribute *attr) +{ + if (dev) + sysfs_remove_bin_file(&dev->kobj, attr); +} +EXPORT_SYMBOL_GPL(device_remove_bin_file); + static void klist_children_get(struct klist_node *n) { struct device *dev = container_of(n, struct device, knode_parent); @@ -289,12 +398,20 @@ { struct device *parent = NULL; char *class_name = NULL; + struct class_interface *class_intf; int error = -EINVAL; dev = get_device(dev); if (!dev || !strlen(dev->bus_id)) goto Error; + /* if this is a class device, and has no parent, create one */ + if ((dev->class) && (dev->parent == NULL)) { + error = virtual_device_parent(dev); + if (error) + goto Error; + } + parent = get_device(dev->parent); pr_debug("DEV: registering device: ID = '%s'\n", dev->bus_id); @@ -307,6 +424,10 @@ if ((error = kobject_add(&dev->kobj))) goto Error; + /* notify platform of device entry */ + if (platform_notify) + platform_notify(dev); + dev->uevent_attr.attr.name = "uevent"; dev->uevent_attr.attr.mode = S_IWUSR; if (dev->driver) @@ -340,12 +461,17 @@ "subsystem"); sysfs_create_link(&dev->class->subsys.kset.kobj, &dev->kobj, dev->bus_id); - - sysfs_create_link(&dev->kobj, &dev->parent->kobj, "device"); - class_name = make_class_name(dev->class->name, &dev->kobj); - sysfs_create_link(&dev->parent->kobj, &dev->kobj, class_name); + if (parent) { + sysfs_create_link(&dev->kobj, &dev->parent->kobj, "device"); + class_name = make_class_name(dev->class->name, &dev->kobj); + sysfs_create_link(&dev->parent->kobj, &dev->kobj, class_name); + } } + if ((error = device_add_attrs(dev))) + goto AttrsError; + if ((error = device_add_groups(dev))) + goto GroupError; if ((error = device_pm_add(dev))) goto PMError; if ((error = bus_add_device(dev))) @@ -356,15 +482,16 @@ klist_add_tail(&dev->knode_parent, &parent->klist_children); if (dev->class) { - /* tie the class to the device */ down(&dev->class->sem); + /* tie the class to the device */ list_add_tail(&dev->node, &dev->class->devices); + + /* notify any interfaces that the device is here */ + list_for_each_entry(class_intf, &dev->class->interfaces, node) + if (class_intf->add_dev) + class_intf->add_dev(dev, class_intf); up(&dev->class->sem); } - - /* notify platform of device entry */ - if (platform_notify) - platform_notify(dev); Done: kfree(class_name); put_device(dev); @@ -372,6 +499,10 @@ BusError: device_pm_remove(dev); PMError: + device_remove_groups(dev); + GroupError: + device_remove_attrs(dev); + AttrsError: if (dev->devt_attr) { device_remove_file(dev, dev->devt_attr); kfree(dev->devt_attr); @@ -449,6 +580,7 @@ { struct device * parent = dev->parent; char *class_name = NULL; + struct class_interface *class_intf; if (parent) klist_del(&dev->knode_parent); @@ -458,14 +590,23 @@ sysfs_remove_link(&dev->kobj, "subsystem"); sysfs_remove_link(&dev->class->subsys.kset.kobj, dev->bus_id); class_name = make_class_name(dev->class->name, &dev->kobj); - sysfs_remove_link(&dev->kobj, "device"); - sysfs_remove_link(&dev->parent->kobj, class_name); + if (parent) { + sysfs_remove_link(&dev->kobj, "device"); + sysfs_remove_link(&dev->parent->kobj, class_name); + } kfree(class_name); down(&dev->class->sem); + /* notify any interfaces that the device is now gone */ + list_for_each_entry(class_intf, &dev->class->interfaces, node) + if (class_intf->remove_dev) + class_intf->remove_dev(dev, class_intf); + /* remove the device from the class list */ list_del_init(&dev->node); up(&dev->class->sem); } device_remove_file(dev, &dev->uevent_attr); + device_remove_groups(dev); + device_remove_attrs(dev); /* Notify the platform of the removal, in case they * need to do anything... @@ -579,7 +720,7 @@ * been created with a call to class_create(). */ struct device *device_create(struct class *class, struct device *parent, - dev_t devt, char *fmt, ...) + dev_t devt, const char *fmt, ...) { va_list args; struct device *dev = NULL; @@ -587,10 +728,6 @@ if (class == NULL || IS_ERR(class)) goto error; - if (parent == NULL) { - printk(KERN_WARNING "%s does not work yet for NULL parents\n", __FUNCTION__); - goto error; - } dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (!dev) { @@ -644,3 +781,58 @@ device_unregister(dev); } EXPORT_SYMBOL_GPL(device_destroy); + +/** + * device_rename - renames a device + * @dev: the pointer to the struct device to be renamed + * @new_name: the new name of the device + */ +int device_rename(struct device *dev, char *new_name) +{ + char *old_class_name = NULL; + char *new_class_name = NULL; + char *old_symlink_name = NULL; + int error; + + dev = get_device(dev); + if (!dev) + return -EINVAL; + + pr_debug("DEVICE: renaming '%s' to '%s'\n", dev->bus_id, new_name); + + if ((dev->class) && (dev->parent)) + old_class_name = make_class_name(dev->class->name, &dev->kobj); + + if (dev->class) { + old_symlink_name = kmalloc(BUS_ID_SIZE, GFP_KERNEL); + if (!old_symlink_name) + return -ENOMEM; + strlcpy(old_symlink_name, dev->bus_id, BUS_ID_SIZE); + } + + strlcpy(dev->bus_id, new_name, BUS_ID_SIZE); + + error = kobject_rename(&dev->kobj, new_name); + + if (old_class_name) { + new_class_name = make_class_name(dev->class->name, &dev->kobj); + if (new_class_name) { + sysfs_create_link(&dev->parent->kobj, &dev->kobj, + new_class_name); + sysfs_remove_link(&dev->parent->kobj, old_class_name); + } + } + if (dev->class) { + sysfs_remove_link(&dev->class->subsys.kset.kobj, + old_symlink_name); + sysfs_create_link(&dev->class->subsys.kset.kobj, &dev->kobj, + dev->bus_id); + } + put_device(dev); + + kfree(old_class_name); + kfree(new_class_name); + kfree(old_symlink_name); + + return error; +}
diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 889c711..b5f43c3 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c
@@ -17,6 +17,7 @@ #include <linux/device.h> #include <linux/module.h> +#include <linux/kthread.h> #include "base.h" #include "power/power.h" @@ -38,66 +39,73 @@ * * This function must be called with @dev->sem held. */ -void device_bind_driver(struct device * dev) +int device_bind_driver(struct device *dev) { - if (klist_node_attached(&dev->knode_driver)) - return; + int ret; + + if (klist_node_attached(&dev->knode_driver)) { + printk(KERN_WARNING "%s: device %s already bound\n", + __FUNCTION__, kobject_name(&dev->kobj)); + return 0; + } pr_debug("bound device '%s' to driver '%s'\n", dev->bus_id, dev->driver->name); klist_add_tail(&dev->knode_driver, &dev->driver->klist_devices); - sysfs_create_link(&dev->driver->kobj, &dev->kobj, + ret = sysfs_create_link(&dev->driver->kobj, &dev->kobj, kobject_name(&dev->kobj)); - sysfs_create_link(&dev->kobj, &dev->driver->kobj, "driver"); + if (ret == 0) { + ret = sysfs_create_link(&dev->kobj, &dev->driver->kobj, + "driver"); + if (ret) + sysfs_remove_link(&dev->driver->kobj, + kobject_name(&dev->kobj)); + } + return ret; } -/** - * driver_probe_device - attempt to bind device & driver. - * @drv: driver. - * @dev: device. - * - * First, we call the bus's match function, if one present, which - * should compare the device IDs the driver supports with the - * device IDs of the device. Note we don't do this ourselves - * because we don't know the format of the ID structures, nor what - * is to be considered a match and what is not. - * - * This function returns 1 if a match is found, an error if one - * occurs (that is not -ENODEV or -ENXIO), and 0 otherwise. - * - * This function must be called with @dev->sem held. When called - * for a USB interface, @dev->parent->sem must be held as well. - */ -int driver_probe_device(struct device_driver * drv, struct device * dev) +struct stupid_thread_structure { + struct device_driver *drv; + struct device *dev; +}; + +static atomic_t probe_count = ATOMIC_INIT(0); +static int really_probe(void *void_data) { + struct stupid_thread_structure *data = void_data; + struct device_driver *drv = data->drv; + struct device *dev = data->dev; int ret = 0; - if (drv->bus->match && !drv->bus->match(dev, drv)) - goto Done; + atomic_inc(&probe_count); + pr_debug("%s: Probing driver %s with device %s\n", + drv->bus->name, drv->name, dev->bus_id); - pr_debug("%s: Matched Device %s with Driver %s\n", - drv->bus->name, dev->bus_id, drv->name); dev->driver = drv; if (dev->bus->probe) { ret = dev->bus->probe(dev); if (ret) { dev->driver = NULL; - goto ProbeFailed; + goto probe_failed; } } else if (drv->probe) { ret = drv->probe(dev); if (ret) { dev->driver = NULL; - goto ProbeFailed; + goto probe_failed; } } - device_bind_driver(dev); + if (device_bind_driver(dev)) { + printk(KERN_ERR "%s: device_bind_driver(%s) failed\n", + __FUNCTION__, dev->bus_id); + /* How does undo a ->probe? We're screwed. */ + } ret = 1; pr_debug("%s: Bound Device %s to Driver %s\n", drv->bus->name, dev->bus_id, drv->name); - goto Done; + goto done; - ProbeFailed: +probe_failed: if (ret == -ENODEV || ret == -ENXIO) { /* Driver matched, but didn't support device * or device not found. @@ -110,7 +118,71 @@ "%s: probe of %s failed with error %d\n", drv->name, dev->bus_id, ret); } - Done: +done: + kfree(data); + atomic_dec(&probe_count); + return ret; +} + +/** + * driver_probe_done + * Determine if the probe sequence is finished or not. + * + * Should somehow figure out how to use a semaphore, not an atomic variable... + */ +int driver_probe_done(void) +{ + pr_debug("%s: probe_count = %d\n", __FUNCTION__, + atomic_read(&probe_count)); + if (atomic_read(&probe_count)) + return -EBUSY; + return 0; +} + +/** + * driver_probe_device - attempt to bind device & driver together + * @drv: driver to bind a device to + * @dev: device to try to bind to the driver + * + * First, we call the bus's match function, if one present, which should + * compare the device IDs the driver supports with the device IDs of the + * device. Note we don't do this ourselves because we don't know the + * format of the ID structures, nor what is to be considered a match and + * what is not. + * + * This function returns 1 if a match is found, an error if one occurs + * (that is not -ENODEV or -ENXIO), and 0 otherwise. + * + * This function must be called with @dev->sem held. When called for a + * USB interface, @dev->parent->sem must be held as well. + */ +int driver_probe_device(struct device_driver * drv, struct device * dev) +{ + struct stupid_thread_structure *data; + struct task_struct *probe_task; + int ret = 0; + + if (!device_is_registered(dev)) + return -ENODEV; + if (drv->bus->match && !drv->bus->match(dev, drv)) + goto done; + + pr_debug("%s: Matched Device %s with Driver %s\n", + drv->bus->name, dev->bus_id, drv->name); + + data = kmalloc(sizeof(*data), GFP_KERNEL); + data->drv = drv; + data->dev = dev; + + if (drv->multithread_probe) { + probe_task = kthread_run(really_probe, data, + "probe-%s", dev->bus_id); + if (IS_ERR(probe_task)) + ret = PTR_ERR(probe_task); + } else + ret = really_probe(data); + +done: return ret; } @@ -139,8 +211,9 @@ down(&dev->sem); if (dev->driver) { - device_bind_driver(dev); - ret = 1; + ret = device_bind_driver(dev); + if (ret == 0) + ret = 1; } else ret = bus_for_each_drv(dev->bus, NULL, dev, __device_attach); up(&dev->sem); @@ -182,9 +255,9 @@ * returns 0 and the @dev->driver is set, we've found a * compatible pair. */ -void driver_attach(struct device_driver * drv) +int driver_attach(struct device_driver * drv) { - bus_for_each_dev(drv->bus, NULL, drv, __driver_attach); + return bus_for_each_dev(drv->bus, NULL, drv, __driver_attach); } /**
diff --git a/drivers/base/driver.c b/drivers/base/driver.c index 562600d..1214cbd 100644 --- a/drivers/base/driver.c +++ b/drivers/base/driver.c
@@ -142,20 +142,6 @@ kobject_put(&drv->kobj); } -static void klist_devices_get(struct klist_node *n) -{ - struct device *dev = container_of(n, struct device, knode_driver); - - get_device(dev); -} - -static void klist_devices_put(struct klist_node *n) -{ - struct device *dev = container_of(n, struct device, knode_driver); - - put_device(dev); -} - /** * driver_register - register driver with bus * @drv: driver to register @@ -175,7 +161,7 @@ (drv->bus->shutdown && drv->shutdown)) { printk(KERN_WARNING "Driver '%s' needs updating - please use bus_type methods\n", drv->name); } - klist_init(&drv->klist_devices, klist_devices_get, klist_devices_put); + klist_init(&drv->klist_devices, NULL, NULL); init_completion(&drv->unloaded); return bus_add_driver(drv); }
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index 5d6c011..77bf882 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c
@@ -602,7 +602,7 @@ class_unregister(&firmware_class); } -module_init(firmware_class_init); +fs_initcall(firmware_class_init); module_exit(firmware_class_exit); EXPORT_SYMBOL(release_firmware);
diff --git a/drivers/base/node.c b/drivers/base/node.c index e9b0957..001e6f6 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c
@@ -54,10 +54,12 @@ "Node %d MemUsed: %8lu kB\n" "Node %d Active: %8lu kB\n" "Node %d Inactive: %8lu kB\n" +#ifdef CONFIG_HIGHMEM "Node %d HighTotal: %8lu kB\n" "Node %d HighFree: %8lu kB\n" "Node %d LowTotal: %8lu kB\n" "Node %d LowFree: %8lu kB\n" +#endif "Node %d Dirty: %8lu kB\n" "Node %d Writeback: %8lu kB\n" "Node %d FilePages: %8lu kB\n" @@ -66,16 +68,20 @@ "Node %d PageTables: %8lu kB\n" "Node %d NFS_Unstable: %8lu kB\n" "Node %d Bounce: %8lu kB\n" - "Node %d Slab: %8lu kB\n", + "Node %d Slab: %8lu kB\n" + "Node %d SReclaimable: %8lu kB\n" + "Node %d SUnreclaim: %8lu kB\n", nid, K(i.totalram), nid, K(i.freeram), nid, K(i.totalram - i.freeram), nid, K(active), nid, K(inactive), +#ifdef CONFIG_HIGHMEM nid, K(i.totalhigh), nid, K(i.freehigh), nid, K(i.totalram - i.totalhigh), nid, K(i.freeram - i.freehigh), +#endif nid, K(node_page_state(nid, NR_FILE_DIRTY)), nid, K(node_page_state(nid, NR_WRITEBACK)), nid, K(node_page_state(nid, NR_FILE_PAGES)), @@ -84,7 +90,10 @@ nid, K(node_page_state(nid, NR_PAGETABLE)), nid, K(node_page_state(nid, NR_UNSTABLE_NFS)), nid, K(node_page_state(nid, NR_BOUNCE)), - nid, K(node_page_state(nid, NR_SLAB))); + nid, K(node_page_state(nid, NR_SLAB_RECLAIMABLE) + + node_page_state(nid, NR_SLAB_UNRECLAIMABLE)), + nid, K(node_page_state(nid, NR_SLAB_RECLAIMABLE)), + nid, K(node_page_state(nid, NR_SLAB_UNRECLAIMABLE))); n += hugetlb_report_node_meminfo(nid, buf + n); return n; }
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 2b8755d..940ce41 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c
@@ -505,12 +505,36 @@ return (strncmp(pdev->name, drv->name, BUS_ID_SIZE) == 0); } -static int platform_suspend(struct device * dev, pm_message_t state) +static int platform_suspend(struct device *dev, pm_message_t mesg) { int ret = 0; if (dev->driver && dev->driver->suspend) - ret = dev->driver->suspend(dev, state); + ret = dev->driver->suspend(dev, mesg); + + return ret; +} + +static int platform_suspend_late(struct device *dev, pm_message_t mesg) +{ + struct platform_driver *drv = to_platform_driver(dev->driver); + struct platform_device *pdev = container_of(dev, struct platform_device, dev); + int ret = 0; + + if (dev->driver && drv->suspend_late) + ret = drv->suspend_late(pdev, mesg); + + return ret; +} + +static int platform_resume_early(struct device *dev) +{ + struct platform_driver *drv = to_platform_driver(dev->driver); + struct platform_device *pdev = container_of(dev, struct platform_device, dev); + int ret = 0; + + if (dev->driver && drv->resume_early) + ret = drv->resume_early(pdev); return ret; } @@ -531,6 +555,8 @@ .match = platform_match, .uevent = platform_uevent, .suspend = platform_suspend, + .suspend_late = platform_suspend_late, + .resume_early = platform_resume_early, .resume = platform_resume, }; EXPORT_SYMBOL_GPL(platform_bus_type);
diff --git a/drivers/base/power/resume.c b/drivers/base/power/resume.c index 826093e..020be36 100644 --- a/drivers/base/power/resume.c +++ b/drivers/base/power/resume.c
@@ -38,13 +38,35 @@ dev_dbg(dev,"resuming\n"); error = dev->bus->resume(dev); } + if (dev->class && dev->class->resume) { + dev_dbg(dev,"class resume\n"); + error = dev->class->resume(dev); + } up(&dev->sem); TRACE_RESUME(error); return error; } +static int resume_device_early(struct device * dev) +{ + int error = 0; + TRACE_DEVICE(dev); + TRACE_RESUME(0); + if (dev->bus && dev->bus->resume_early) { + dev_dbg(dev,"EARLY resume\n"); + error = dev->bus->resume_early(dev); + } + TRACE_RESUME(error); + return error; +} + +/* + * Resume the devices that have either not gone through + * the late suspend, or that did go through it but also + * went through the early resume + */ void dpm_resume(void) { down(&dpm_list_sem); @@ -74,6 +96,7 @@ void device_resume(void) { + might_sleep(); down(&dpm_sem); dpm_resume(); up(&dpm_sem); @@ -83,12 +106,12 @@ /** - * device_power_up_irq - Power on some devices. + * dpm_power_up - Power on some devices. * * Walk the dpm_off_irq list and power each device up. This * is used for devices that required they be powered down with - * interrupts disabled. As devices are powered on, they are moved to - * the dpm_suspended list. + * interrupts disabled. As devices are powered on, they are moved + * to the dpm_active list. * * Interrupts must be disabled when calling this. */ @@ -99,16 +122,14 @@ struct list_head * entry = dpm_off_irq.next; struct device * dev = to_device(entry); - get_device(dev); - list_move_tail(entry, &dpm_active); - resume_device(dev); - put_device(dev); + list_move_tail(entry, &dpm_off); + resume_device_early(dev); } } /** - * device_pm_power_up - Turn on all devices that need special attention. + * device_power_up - Turn on all devices that need special attention. * * Power on system devices then devices that required we shut them down * with interrupts disabled.
diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c index 69509e0..ece136b 100644 --- a/drivers/base/power/suspend.c +++ b/drivers/base/power/suspend.c
@@ -34,6 +34,7 @@ switch (event) { case PM_EVENT_SUSPEND: return "suspend"; case PM_EVENT_FREEZE: return "freeze"; + case PM_EVENT_PRETHAW: return "prethaw"; default: return "(unknown suspend event)"; } } @@ -65,7 +66,19 @@ dev->power.prev_state = dev->power.power_state; - if (dev->bus && dev->bus->suspend && !dev->power.power_state.event) { + if (dev->class && dev->class->suspend && !dev->power.power_state.event) { + dev_dbg(dev, "class %s%s\n", + suspend_verb(state.event), + ((state.event == PM_EVENT_SUSPEND) + && device_may_wakeup(dev)) + ? ", may wakeup" + : "" + ); + error = dev->class->suspend(dev, state); + suspend_report_result(dev->class->suspend, error); + } + + if (!error && dev->bus && dev->bus->suspend && !dev->power.power_state.event) { dev_dbg(dev, "%s%s\n", suspend_verb(state.event), ((state.event == PM_EVENT_SUSPEND) @@ -81,15 +94,42 @@ } +/* + * This is called with interrupts off, only a single CPU + * running. We can't do down() on a semaphore (and we don't + * need the protection) + */ +static int suspend_device_late(struct device *dev, pm_message_t state) +{ + int error = 0; + + if (dev->bus && dev->bus->suspend_late && !dev->power.power_state.event) { + dev_dbg(dev, "LATE %s%s\n", + suspend_verb(state.event), + ((state.event == PM_EVENT_SUSPEND) + && device_may_wakeup(dev)) + ? ", may wakeup" + : "" + ); + error = dev->bus->suspend_late(dev, state); + suspend_report_result(dev->bus->suspend_late, error); + } + return error; +} + /** * device_suspend - Save state and stop all devices in system. * @state: Power state to put each device in. * * Walk the dpm_active list, call ->suspend() for each device, and move - * it to dpm_off. - * Check the return value for each. If it returns 0, then we move the - * the device to the dpm_off list. If it returns -EAGAIN, we move it to - * the dpm_off_irq list. If we get a different error, try and back out. + * it to the dpm_off list. + * + * (For historical reasons, if it returns -EAGAIN, that used to mean + * that the device would be called again with interrupts disabled. + * These days, we use the "suspend_late()" callback for that, so we + * print a warning and consider it an error). + * + * If we get a different error, try and back out. * * If we hit a failure with any of the devices, call device_resume() * above to bring the suspended devices back to life. @@ -100,6 +140,7 @@ { int error = 0; + might_sleep(); down(&dpm_sem); down(&dpm_list_sem); while (!list_empty(&dpm_active) && error == 0) { @@ -115,39 +156,27 @@ /* Check if the device got removed */ if (!list_empty(&dev->power.entry)) { - /* Move it to the dpm_off or dpm_off_irq list */ + /* Move it to the dpm_off list */ if (!error) list_move(&dev->power.entry, &dpm_off); - else if (error == -EAGAIN) { - list_move(&dev->power.entry, &dpm_off_irq); - error = 0; - } } if (error) printk(KERN_ERR "Could not suspend device %s: " - "error %d\n", kobject_name(&dev->kobj), error); + "error %d%s\n", + kobject_name(&dev->kobj), error, + error == -EAGAIN ? " (please convert to suspend_late)" : ""); put_device(dev); } up(&dpm_list_sem); - if (error) { - /* we failed... before resuming, bring back devices from - * dpm_off_irq list back to main dpm_off list, we do want - * to call resume() on them, in case they partially suspended - * despite returning -EAGAIN - */ - while (!list_empty(&dpm_off_irq)) { - struct list_head * entry = dpm_off_irq.next; - list_move(entry, &dpm_off); - } + if (error) dpm_resume(); - } + up(&dpm_sem); return error; } EXPORT_SYMBOL_GPL(device_suspend); - /** * device_power_down - Shut down special devices. * @state: Power state to enter. @@ -162,14 +191,17 @@ int error = 0; struct device * dev; - list_for_each_entry_reverse(dev, &dpm_off_irq, power.entry) { - if ((error = suspend_device(dev, state))) - break; + while (!list_empty(&dpm_off)) { + struct list_head * entry = dpm_off.prev; + + dev = to_device(entry); + error = suspend_device_late(dev, state); + if (error) + goto Error; + list_move(&dev->power.entry, &dpm_off_irq); } - if (error) - goto Error; - if ((error = sysdev_suspend(state))) - goto Error; + + error = sysdev_suspend(state); Done: return error; Error:
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c index 40d7242..2d47517 100644 --- a/drivers/base/power/sysfs.c +++ b/drivers/base/power/sysfs.c
@@ -7,22 +7,29 @@ #include "power.h" +#ifdef CONFIG_PM_SYSFS_DEPRECATED + /** * state - Control current power state of device * * show() returns the current power state of the device. '0' indicates - * the device is on. Other values (1-3) indicate the device is in a low + * the device is on. Other values (2) indicate the device is in some low * power state. * - * store() sets the current power state, which is an integer value - * between 0-3. If the device is on ('0'), and the value written is - * greater than 0, then the device is placed directly into the low-power - * state (via its driver's ->suspend() method). - * If the device is currently in a low-power state, and the value is 0, - * the device is powered back on (via the ->resume() method). - * If the device is in a low-power state, and a different low-power state - * is requested, the device is first resumed, then suspended into the new - * low-power state. + * store() sets the current power state, which is an integer valued + * 0, 2, or 3. Devices with bus.suspend_late(), or bus.resume_early() + * methods fail this operation; those methods couldn't be called. + * Otherwise, + * + * - If the recorded dev->power.power_state.event matches the + * target value, nothing is done. + * - If the recorded event code is nonzero, the device is reactivated + * by calling bus.resume() and/or class.resume(). + * - If the target value is nonzero, the device is suspended by + * calling class.suspend() and/or bus.suspend() with event code + * PM_EVENT_SUSPEND. + * + * This mechanism is DEPRECATED and should only be used for testing. */ static ssize_t state_show(struct device * dev, struct device_attribute *attr, char * buf) @@ -38,6 +45,10 @@ pm_message_t state; int error = -EINVAL; + /* disallow incomplete suspend sequences */ + if (dev->bus && (dev->bus->suspend_late || dev->bus->resume_early)) + return error; + state.event = PM_EVENT_SUSPEND; /* Older apps expected to write "3" here - confused with PCI D3 */ if ((n == 1) && !strcmp(buf, "3")) @@ -57,6 +68,8 @@ static DEVICE_ATTR(state, 0644, state_show, state_store); +#endif /* CONFIG_PM_SYSFS_DEPRECATED */ + /* * wakeup - Report/change current wakeup option for device * @@ -130,7 +143,9 @@ static struct attribute * power_attrs[] = { +#ifdef CONFIG_PM_SYSFS_DEPRECATED &dev_attr_state.attr, +#endif &dev_attr_wakeup.attr, NULL, };
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 7b3b94d..c774121 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c
@@ -662,7 +662,8 @@ mapping_set_gfp_mask(old_file->f_mapping, lo->old_gfp_mask); lo->lo_backing_file = file; - lo->lo_blocksize = mapping->host->i_blksize; + lo->lo_blocksize = S_ISBLK(mapping->host->i_mode) ? + mapping->host->i_bdev->bd_block_size : PAGE_SIZE; lo->old_gfp_mask = mapping_gfp_mask(mapping); mapping_set_gfp_mask(mapping, lo->old_gfp_mask & ~(__GFP_IO|__GFP_FS)); complete(&p->wait); @@ -794,7 +795,9 @@ if (!(lo_flags & LO_FLAGS_USE_AOPS) && !file->f_op->write) lo_flags |= LO_FLAGS_READ_ONLY; - lo_blocksize = inode->i_blksize; + lo_blocksize = S_ISBLK(inode->i_mode) ? + inode->i_bdev->bd_block_size : PAGE_SIZE; + error = 0; } else { goto out_putf;
diff --git a/drivers/block/ub.c b/drivers/block/ub.c index d62b49f..45a8f40 100644 --- a/drivers/block/ub.c +++ b/drivers/block/ub.c
@@ -358,7 +358,7 @@ static void ub_cmd_build_packet(struct ub_dev *sc, struct ub_lun *lun, struct ub_scsi_cmd *cmd, struct ub_request *urq); static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd); -static void ub_end_rq(struct request *rq, int uptodate); +static void ub_end_rq(struct request *rq, unsigned int status); static int ub_rw_cmd_retry(struct ub_dev *sc, struct ub_lun *lun, struct ub_request *urq, struct ub_scsi_cmd *cmd); static int ub_submit_scsi(struct ub_dev *sc, struct ub_scsi_cmd *cmd); @@ -639,9 +639,15 @@ struct ub_request *urq; int n_elem; - if (atomic_read(&sc->poison) || lun->changed) { + if (atomic_read(&sc->poison)) { blkdev_dequeue_request(rq); - ub_end_rq(rq, 0); + ub_end_rq(rq, DID_NO_CONNECT << 16); + return 0; + } + + if (lun->changed && !blk_pc_request(rq)) { + blkdev_dequeue_request(rq); + ub_end_rq(rq, SAM_STAT_CHECK_CONDITION); return 0; } @@ -693,7 +699,7 @@ drop: ub_put_cmd(lun, cmd); - ub_end_rq(rq, 0); + ub_end_rq(rq, DID_ERROR << 16); return 0; } @@ -761,47 +767,53 @@ struct ub_lun *lun = cmd->lun; struct ub_request *urq = cmd->back; struct request *rq; - int uptodate; + unsigned int scsi_status; rq = urq->rq; if (cmd->error == 0) { - uptodate = 1; - if (blk_pc_request(rq)) { if (cmd->act_len >= rq->data_len) rq->data_len = 0; else rq->data_len -= cmd->act_len; } + scsi_status = 0; } else { - uptodate = 0; - if (blk_pc_request(rq)) { /* UB_SENSE_SIZE is smaller than SCSI_SENSE_BUFFERSIZE */ memcpy(rq->sense, sc->top_sense, UB_SENSE_SIZE); rq->sense_len = UB_SENSE_SIZE; if (sc->top_sense[0] != 0) - rq->errors = SAM_STAT_CHECK_CONDITION; + scsi_status = SAM_STAT_CHECK_CONDITION; else - rq->errors = DID_ERROR << 16; + scsi_status = DID_ERROR << 16; } else { if (cmd->error == -EIO) { if (ub_rw_cmd_retry(sc, lun, urq, cmd) == 0) return; } + scsi_status = SAM_STAT_CHECK_CONDITION; } } urq->rq = NULL; ub_put_cmd(lun, cmd); - ub_end_rq(rq, uptodate); + ub_end_rq(rq, scsi_status); blk_start_queue(lun->disk->queue); } -static void ub_end_rq(struct request *rq, int uptodate) +static void ub_end_rq(struct request *rq, unsigned int scsi_status) { + int uptodate; + + if (scsi_status == 0) { + uptodate = 1; + } else { + uptodate = 0; + rq->errors = scsi_status; + } end_that_request_first(rq, uptodate, rq->hard_nr_sectors); end_that_request_last(rq, uptodate); }
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 52ea94b..1b21c3a 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig
@@ -439,6 +439,14 @@ If you have an SGI Altix with an attached SABrick say Y or M here, otherwise say N. +config MSPEC + tristate "Memory special operations driver" + depends on IA64 + help + If you have an ia64 and you want to enable memory special + operations support (formerly known as fetchop), say Y here, + otherwise say N. + source "drivers/serial/Kconfig" config UNIX98_PTYS @@ -739,7 +747,7 @@ config RTC tristate "Enhanced Real Time Clock Support" - depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV && !ARM + depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV && !ARM && !SUPERH ---help--- If you say Y here and create a character special file /dev/rtc with major number 10 and minor number 135 using mknod ("man mknod"), you
diff --git a/drivers/char/Makefile b/drivers/char/Makefile index 8c6dfc62..b583d0c 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile
@@ -47,6 +47,7 @@ obj-$(CONFIG_HVC_DRIVER) += hvc_console.o obj-$(CONFIG_RAW_DRIVER) += raw.o obj-$(CONFIG_SGI_SNSC) += snsc.o snsc_event.o +obj-$(CONFIG_MSPEC) += mspec.o obj-$(CONFIG_MMTIMER) += mmtimer.o obj-$(CONFIG_VIOCONS) += viocons.o obj-$(CONFIG_VIOTAPE) += viotape.o
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index 8afba33..58b0eb5 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c
@@ -868,8 +868,8 @@ do_div(temp, period); hpetp->hp_tick_freq = temp; /* ticks per second */ - printk(KERN_INFO "hpet%d: at MMIO 0x%lx (virtual 0x%p), IRQ%s", - hpetp->hp_which, hdp->hd_phys_address, hdp->hd_address, + printk(KERN_INFO "hpet%d: at MMIO 0x%lx, IRQ%s", + hpetp->hp_which, hdp->hd_phys_address, hpetp->hp_ntimer > 1 ? "s" : ""); for (i = 0; i < hpetp->hp_ntimer; i++) printk("%s %d", i > 0 ? "," : "", hdp->hd_irq[i]);
diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 917b204..4ac70ec 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c
@@ -238,6 +238,32 @@ } #endif +#ifndef CONFIG_MMU +static unsigned long get_unmapped_area_mem(struct file *file, + unsigned long addr, + unsigned long len, + unsigned long pgoff, + unsigned long flags) +{ + if (!valid_mmap_phys_addr_range(pgoff, len)) + return (unsigned long) -EINVAL; + return pgoff; +} + +/* can't do an in-place private mapping if there's no MMU */ +static inline int private_mapping_ok(struct vm_area_struct *vma) +{ + return vma->vm_flags & VM_MAYSHARE; +} +#else +#define get_unmapped_area_mem NULL + +static inline int private_mapping_ok(struct vm_area_struct *vma) +{ + return 1; +} +#endif + static int mmap_mem(struct file * file, struct vm_area_struct * vma) { size_t size = vma->vm_end - vma->vm_start; @@ -245,6 +271,9 @@ if (!valid_mmap_phys_addr_range(vma->vm_pgoff, size)) return -EINVAL; + if (!private_mapping_ok(vma)) + return -ENOSYS; + vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff, size, vma->vm_page_prot); @@ -782,6 +811,7 @@ .write = write_mem, .mmap = mmap_mem, .open = open_mem, + .get_unmapped_area = get_unmapped_area_mem, }; static const struct file_operations kmem_fops = { @@ -790,6 +820,7 @@ .write = write_kmem, .mmap = mmap_kmem, .open = open_kmem, + .get_unmapped_area = get_unmapped_area_mem, }; static const struct file_operations null_fops = { @@ -815,6 +846,10 @@ .mmap = mmap_zero, }; +/* + * capabilities for /dev/zero + * - permits private mappings, "copies" are taken of the source of zeros + */ static struct backing_dev_info zero_bdi = { .capabilities = BDI_CAP_MAP_COPY, }; @@ -862,9 +897,13 @@ switch (iminor(inode)) { case 1: filp->f_op = &mem_fops; + filp->f_mapping->backing_dev_info = + &directly_mappable_cdev_bdi; break; case 2: filp->f_op = &kmem_fops; + filp->f_mapping->backing_dev_info = + &directly_mappable_cdev_bdi; break; case 3: filp->f_op = &null_fops;
diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c new file mode 100644 index 0000000..5426b1e --- /dev/null +++ b/drivers/char/mspec.c
@@ -0,0 +1,421 @@ +/* + * Copyright (C) 2001-2006 Silicon Graphics, Inc. All rights + * reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License + * as published by the Free Software Foundation. + */ + +/* + * SN Platform Special Memory (mspec) Support + * + * This driver exports the SN special memory (mspec) facility to user + * processes. + * There are three types of memory made available thru this driver: + * fetchops, uncached and cached. + * + * Fetchops are atomic memory operations that are implemented in the + * memory controller on SGI SN hardware. + * + * Uncached are used for memory write combining feature of the ia64 + * cpu. + * + * Cached are used for areas of memory that are used as cached addresses + * on our partition and used as uncached addresses from other partitions. + * Due to a design constraint of the SN2 Shub, you can not have processors + * on the same FSB perform both a cached and uncached reference to the + * same cache line. These special memory cached regions prevent the + * kernel from ever dropping in a TLB entry and therefore prevent the + * processor from ever speculating a cache line from this page. + */ + +#include <linux/config.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/miscdevice.h> +#include <linux/spinlock.h> +#include <linux/mm.h> +#include <linux/vmalloc.h> +#include <linux/string.h> +#include <linux/slab.h> +#include <linux/numa.h> +#include <asm/page.h> +#include <asm/system.h> +#include <asm/pgtable.h> +#include <asm/atomic.h> +#include <asm/tlbflush.h> +#include <asm/uncached.h> +#include <asm/sn/addrs.h> +#include <asm/sn/arch.h> +#include <asm/sn/mspec.h> +#include <asm/sn/sn_cpuid.h> +#include <asm/sn/io.h> +#include <asm/sn/bte.h> +#include <asm/sn/shubio.h> + + +#define FETCHOP_ID "SGI Fetchop," +#define CACHED_ID "Cached," +#define UNCACHED_ID "Uncached" +#define REVISION "4.0" +#define MSPEC_BASENAME "mspec" + +/* + * Page types allocated by the device. + */ +enum { + MSPEC_FETCHOP = 1, + MSPEC_CACHED, + MSPEC_UNCACHED +}; + +static int is_sn2; + +/* + * One of these structures is allocated when an mspec region is mmaped. The + * structure is pointed to by the vma->vm_private_data field in the vma struct. + * This structure is used to record the addresses of the mspec pages. + */ +struct vma_data { + atomic_t refcnt; /* Number of vmas sharing the data. */ + spinlock_t lock; /* Serialize access to the vma. */ + int count; /* Number of pages allocated. */ + int type; /* Type of pages allocated. */ + unsigned long maddr[0]; /* Array of MSPEC addresses. */ +}; + +/* used on shub2 to clear FOP cache in the HUB */ +static unsigned long scratch_page[MAX_NUMNODES]; +#define SH2_AMO_CACHE_ENTRIES 4 + +static inline int +mspec_zero_block(unsigned long addr, int len) +{ + int status; + + if (is_sn2) { + if (is_shub2()) { + int nid; + void *p; + int i; + + nid = nasid_to_cnodeid(get_node_number(__pa(addr))); + p = (void *)TO_AMO(scratch_page[nid]); + + for (i=0; i < SH2_AMO_CACHE_ENTRIES; i++) { + FETCHOP_LOAD_OP(p, FETCHOP_LOAD); + p += FETCHOP_VAR_SIZE; + } + } + + status = bte_copy(0, addr & ~__IA64_UNCACHED_OFFSET, len, + BTE_WACQUIRE | BTE_ZERO_FILL, NULL); + } else { + memset((char *) addr, 0, len); + status = 0; + } + return status; +} + +/* + * mspec_open + * + * Called when a device mapping is created by a means other than mmap + * (via fork, etc.). Increments the reference count on the underlying + * mspec data so it is not freed prematurely. + */ +static void +mspec_open(struct vm_area_struct *vma) +{ + struct vma_data *vdata; + + vdata = vma->vm_private_data; + atomic_inc(&vdata->refcnt); +} + +/* + * mspec_close + * + * Called when unmapping a device mapping. Frees all mspec pages + * belonging to the vma. + */ +static void +mspec_close(struct vm_area_struct *vma) +{ + struct vma_data *vdata; + int i, pages, result, vdata_size; + + vdata = vma->vm_private_data; + if (!atomic_dec_and_test(&vdata->refcnt)) + return; + + pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + vdata_size = sizeof(struct vma_data) + pages * sizeof(long); + for (i = 0; i < pages; i++) { + if (vdata->maddr[i] == 0) + continue; + /* + * Clear the page before sticking it back + * into the pool. + */ + result = mspec_zero_block(vdata->maddr[i], PAGE_SIZE); + if (!result) + uncached_free_page(vdata->maddr[i]); + else + printk(KERN_WARNING "mspec_close(): " + "failed to zero page %i\n", + result); + } + + if (vdata_size <= PAGE_SIZE) + kfree(vdata); + else + vfree(vdata); +} + + +/* + * mspec_nopfn + * + * Creates a mspec page and maps it to user space. + */ +static unsigned long +mspec_nopfn(struct vm_area_struct *vma, unsigned long address) +{ + unsigned long paddr, maddr; + unsigned long pfn; + int index; + struct vma_data *vdata = vma->vm_private_data; + + index = (address - vma->vm_start) >> PAGE_SHIFT; + maddr = (volatile unsigned long) vdata->maddr[index]; + if (maddr == 0) { + maddr = uncached_alloc_page(numa_node_id()); + if (maddr == 0) + return NOPFN_OOM; + + spin_lock(&vdata->lock); + if (vdata->maddr[index] == 0) { + vdata->count++; + vdata->maddr[index] = maddr; + } else { + uncached_free_page(maddr); + maddr = vdata->maddr[index]; + } + spin_unlock(&vdata->lock); + } + + if (vdata->type == MSPEC_FETCHOP) + paddr = TO_AMO(maddr); + else + paddr = __pa(TO_CAC(maddr)); + + pfn = paddr >> PAGE_SHIFT; + + return pfn; +} + +static struct vm_operations_struct mspec_vm_ops = { + .open = mspec_open, + .close = mspec_close, + .nopfn = mspec_nopfn +}; + +/* + * mspec_mmap + * + * Called when mmaping the device. Initializes the vma with a fault handler + * and private data structure necessary to allocate, track, and free the + * underlying pages. + */ +static int +mspec_mmap(struct file *file, struct vm_area_struct *vma, int type) +{ + struct vma_data *vdata; + int pages, vdata_size; + + if (vma->vm_pgoff != 0) + return -EINVAL; + + if ((vma->vm_flags & VM_SHARED) == 0) + return -EINVAL; + + if ((vma->vm_flags & VM_WRITE) == 0) + return -EPERM; + + pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + vdata_size = sizeof(struct vma_data) + pages * sizeof(long); + if (vdata_size <= PAGE_SIZE) + vdata = kmalloc(vdata_size, GFP_KERNEL); + else + vdata = vmalloc(vdata_size); + if (!vdata) + return -ENOMEM; + memset(vdata, 0, vdata_size); + + vdata->type = type; + spin_lock_init(&vdata->lock); + vdata->refcnt = ATOMIC_INIT(1); + vma->vm_private_data = vdata; + + vma->vm_flags |= (VM_IO | VM_LOCKED | VM_RESERVED | VM_PFNMAP); + if (vdata->type == MSPEC_FETCHOP || vdata->type == MSPEC_UNCACHED) + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + vma->vm_ops = &mspec_vm_ops; + + return 0; +} + +static int +fetchop_mmap(struct file *file, struct vm_area_struct *vma) +{ + return mspec_mmap(file, vma, MSPEC_FETCHOP); +} + +static int +cached_mmap(struct file *file, struct vm_area_struct *vma) +{ + return mspec_mmap(file, vma, MSPEC_CACHED); +} + +static int +uncached_mmap(struct file *file, struct vm_area_struct *vma) +{ + return mspec_mmap(file, vma, MSPEC_UNCACHED); +} + +static struct file_operations fetchop_fops = { + .owner = THIS_MODULE, + .mmap = fetchop_mmap +}; + +static struct miscdevice fetchop_miscdev = { + .minor = MISC_DYNAMIC_MINOR, + .name = "sgi_fetchop", + .fops = &fetchop_fops +}; + +static struct file_operations cached_fops = { + .owner = THIS_MODULE, + .mmap = cached_mmap +}; + +static struct miscdevice cached_miscdev = { + .minor = MISC_DYNAMIC_MINOR, + .name = "mspec_cached", + .fops = &cached_fops +}; + +static struct file_operations uncached_fops = { + .owner = THIS_MODULE, + .mmap = uncached_mmap +}; + +static struct miscdevice uncached_miscdev = { + .minor = MISC_DYNAMIC_MINOR, + .name = "mspec_uncached", + .fops = &uncached_fops +}; + +/* + * mspec_init + * + * Called at boot time to initialize the mspec facility. + */ +static int __init +mspec_init(void) +{ + int ret; + int nid; + + /* + * The fetchop device only works on SN2 hardware, uncached and cached + * memory drivers should both be valid on all ia64 hardware + */ + if (ia64_platform_is("sn2")) { + is_sn2 = 1; + if (is_shub2()) { + ret = -ENOMEM; + for_each_online_node(nid) { + int actual_nid; + int nasid; + unsigned long phys; + + scratch_page[nid] = uncached_alloc_page(nid); + if (scratch_page[nid] == 0) + goto free_scratch_pages; + phys = __pa(scratch_page[nid]); + nasid = get_node_number(phys); + actual_nid = nasid_to_cnodeid(nasid); + if (actual_nid != nid) + goto free_scratch_pages; + } + } + + ret = misc_register(&fetchop_miscdev); + if (ret) { + printk(KERN_ERR + "%s: failed to register device %i\n", + FETCHOP_ID, ret); + goto free_scratch_pages; + } + } + ret = misc_register(&cached_miscdev); + if (ret) { + printk(KERN_ERR "%s: failed to register device %i\n", + CACHED_ID, ret); + if (is_sn2) + misc_deregister(&fetchop_miscdev); + goto free_scratch_pages; + } + ret = misc_register(&uncached_miscdev); + if (ret) { + printk(KERN_ERR "%s: failed to register device %i\n", + UNCACHED_ID, ret); + misc_deregister(&cached_miscdev); + if (is_sn2) + misc_deregister(&fetchop_miscdev); + goto free_scratch_pages; + } + + printk(KERN_INFO "%s %s initialized devices: %s %s %s\n", + MSPEC_BASENAME, REVISION, is_sn2 ? FETCHOP_ID : "", + CACHED_ID, UNCACHED_ID); + + return 0; + + free_scratch_pages: + for_each_node(nid) { + if (scratch_page[nid] != 0) + uncached_free_page(scratch_page[nid]); + } + return ret; +} + +static void __exit +mspec_exit(void) +{ + int nid; + + misc_deregister(&uncached_miscdev); + misc_deregister(&cached_miscdev); + if (is_sn2) { + misc_deregister(&fetchop_miscdev); + + for_each_node(nid) { + if (scratch_page[nid] != 0) + uncached_free_page(scratch_page[nid]); + } + } +} + +module_init(mspec_init); +module_exit(mspec_exit); + +MODULE_AUTHOR("Silicon Graphics, Inc. <linux-altix@sgi.com>"); +MODULE_DESCRIPTION("Driver for SGI SN special memory operations"); +MODULE_LICENSE("GPL");
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c index 6e6a7c7..ab6429b 100644 --- a/drivers/char/rtc.c +++ b/drivers/char/rtc.c
@@ -209,11 +209,12 @@ */ static inline unsigned char rtc_is_updating(void) { + unsigned long flags; unsigned char uip; - spin_lock_irq(&rtc_lock); + spin_lock_irqsave(&rtc_lock, flags); uip = (CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP); - spin_unlock_irq(&rtc_lock); + spin_unlock_irqrestore(&rtc_lock, flags); return uip; }
diff --git a/drivers/char/watchdog/Kconfig b/drivers/char/watchdog/Kconfig index fff89c2..f114d7b 100644 --- a/drivers/char/watchdog/Kconfig +++ b/drivers/char/watchdog/Kconfig
@@ -510,6 +510,14 @@ To compile this driver as a module, choose M here: the module will be called shwdt. +config SH_WDT_MMAP + bool "Allow mmap of SH WDT" + default n + depends on SH_WDT + help + If you say Y here, user applications will be able to mmap the + WDT/CPG registers. +# # SPARC64 Architecture config WATCHDOG_CP1XXX
diff --git a/drivers/char/watchdog/shwdt.c b/drivers/char/watchdog/shwdt.c index 1355038..e5b8c64 100644 --- a/drivers/char/watchdog/shwdt.c +++ b/drivers/char/watchdog/shwdt.c
@@ -27,7 +27,7 @@ #include <linux/notifier.h> #include <linux/ioport.h> #include <linux/fs.h> - +#include <linux/mm.h> #include <asm/io.h> #include <asm/uaccess.h> #include <asm/watchdog.h> @@ -125,7 +125,6 @@ /** * sh_wdt_stop - Stop the Watchdog - * * Stops the watchdog. */ static void sh_wdt_stop(void) @@ -141,22 +140,20 @@ /** * sh_wdt_keepalive - Keep the Userspace Watchdog Alive - * * The Userspace watchdog got a KeepAlive: schedule the next heartbeat. */ -static void sh_wdt_keepalive(void) +static inline void sh_wdt_keepalive(void) { next_heartbeat = jiffies + (heartbeat * HZ); } /** * sh_wdt_set_heartbeat - Set the Userspace Watchdog heartbeat - * * Set the Userspace Watchdog heartbeat */ static int sh_wdt_set_heartbeat(int t) { - if ((t < 1) || (t > 3600)) /* arbitrary upper limit */ + if (unlikely((t < 1) || (t > 3600))) /* arbitrary upper limit */ return -EINVAL; heartbeat = t; @@ -165,7 +162,6 @@ /** * sh_wdt_ping - Ping the Watchdog - * * @data: Unused * * Clears overflow bit, resets timer counter. @@ -182,14 +178,13 @@ sh_wdt_write_cnt(0); mod_timer(&timer, next_ping_period(clock_division_ratio)); - } else { - printk(KERN_WARNING PFX "Heartbeat lost! Will not ping the watchdog\n"); - } + } else + printk(KERN_WARNING PFX "Heartbeat lost! Will not ping " + "the watchdog\n"); } /** * sh_wdt_open - Open the Device - * * @inode: inode of device * @file: file handle of device * @@ -209,7 +204,6 @@ /** * sh_wdt_close - Close the Device - * * @inode: inode of device * @file: file handle of device * @@ -220,7 +214,8 @@ if (shwdt_expect_close == 42) { sh_wdt_stop(); } else { - printk(KERN_CRIT PFX "Unexpected close, not stopping watchdog!\n"); + printk(KERN_CRIT PFX "Unexpected close, not " + "stopping watchdog!\n"); sh_wdt_keepalive(); } @@ -232,7 +227,6 @@ /** * sh_wdt_write - Write to Device - * * @file: file handle of device * @buf: buffer to write * @count: length of buffer @@ -264,8 +258,56 @@ } /** - * sh_wdt_ioctl - Query Device + * sh_wdt_mmap - map WDT/CPG registers into userspace + * @file: file structure for the device + * @vma: VMA to map the registers into * + * A simple mmap() implementation for the corner cases where the counter + * needs to be mapped in userspace directly. Due to the relatively small + * size of the area, neighbouring registers not necessarily tied to the + * CPG will also be accessible through the register page, so this remains + * configurable for users that really know what they're doing. + * + * Additionaly, the register page maps in the CPG register base relative + * to the nearest page-aligned boundary, which requires that userspace do + * the appropriate CPU subtype math for calculating the page offset for + * the counter value. + */ +static int sh_wdt_mmap(struct file *file, struct vm_area_struct *vma) +{ + int ret = -ENOSYS; + +#ifdef CONFIG_SH_WDT_MMAP + unsigned long addr; + + /* Only support the simple cases where we map in a register page. */ + if (((vma->vm_end - vma->vm_start) != PAGE_SIZE) || vma->vm_pgoff) + return -EINVAL; + + /* + * Pick WTCNT as the start, it's usually the first register after the + * FRQCR, and neither one are generally page-aligned out of the box. + */ + addr = WTCNT & ~(PAGE_SIZE - 1); + + vma->vm_flags |= VM_IO; + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + + if (io_remap_pfn_range(vma, vma->vm_start, addr >> PAGE_SHIFT, + PAGE_SIZE, vma->vm_page_prot)) { + printk(KERN_ERR PFX "%s: io_remap_pfn_range failed\n", + __FUNCTION__); + return -EAGAIN; + } + + ret = 0; +#endif + + return ret; +} + +/** + * sh_wdt_ioctl - Query Device * @inode: inode of device * @file: file handle of device * @cmd: watchdog command @@ -326,7 +368,6 @@ /** * sh_wdt_notify_sys - Notifier Handler - * * @this: notifier block * @code: notifier event * @unused: unused @@ -337,9 +378,8 @@ static int sh_wdt_notify_sys(struct notifier_block *this, unsigned long code, void *unused) { - if (code == SYS_DOWN || code == SYS_HALT) { + if (code == SYS_DOWN || code == SYS_HALT) sh_wdt_stop(); - } return NOTIFY_DONE; } @@ -351,10 +391,12 @@ .ioctl = sh_wdt_ioctl, .open = sh_wdt_open, .release = sh_wdt_close, + .mmap = sh_wdt_mmap, }; static struct watchdog_info sh_wdt_info = { - .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE, + .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | + WDIOF_MAGICCLOSE, .firmware_version = 1, .identity = "SH WDT", }; @@ -371,7 +413,6 @@ /** * sh_wdt_init - Initialize module - * * Registers the device and notifier handler. Actual device * initialization is handled by sh_wdt_open(). */ @@ -381,15 +422,15 @@ if ((clock_division_ratio < 0x5) || (clock_division_ratio > 0x7)) { clock_division_ratio = WTCSR_CKS_4096; - printk(KERN_INFO PFX "clock_division_ratio value must be 0x5<=x<=0x7, using %d\n", - clock_division_ratio); + printk(KERN_INFO PFX "clock_division_ratio value must " + "be 0x5<=x<=0x7, using %d\n", clock_division_ratio); } - if (sh_wdt_set_heartbeat(heartbeat)) - { + rc = sh_wdt_set_heartbeat(heartbeat); + if (unlikely(rc)) { heartbeat = WATCHDOG_HEARTBEAT; - printk(KERN_INFO PFX "heartbeat value must be 1<=x<=3600, using %d\n", - heartbeat); + printk(KERN_INFO PFX "heartbeat value must " + "be 1<=x<=3600, using %d\n", heartbeat); } init_timer(&timer); @@ -397,15 +438,16 @@ timer.data = 0; rc = register_reboot_notifier(&sh_wdt_notifier); - if (rc) { - printk(KERN_ERR PFX "Can't register reboot notifier (err=%d)\n", rc); + if (unlikely(rc)) { + printk(KERN_ERR PFX "Can't register reboot notifier (err=%d)\n", + rc); return rc; } rc = misc_register(&sh_wdt_miscdev); - if (rc) { - printk(KERN_ERR PFX "Can't register miscdev on minor=%d (err=%d)\n", - sh_wdt_miscdev.minor, rc); + if (unlikely(rc)) { + printk(KERN_ERR PFX "Can't register miscdev on " + "minor=%d (err=%d)\n", sh_wdt_miscdev.minor, rc); unregister_reboot_notifier(&sh_wdt_notifier); return rc; } @@ -418,7 +460,6 @@ /** * sh_wdt_exit - Deinitialize module - * * Unregisters the device and notifier handler. Actual device * deinitialization is handled by sh_wdt_close(). */ @@ -434,14 +475,13 @@ MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); module_param(clock_division_ratio, int, 0); -MODULE_PARM_DESC(clock_division_ratio, "Clock division ratio. Valid ranges are from 0x5 (1.31ms) to 0x7 (5.25ms). Defaults to 0x7."); +MODULE_PARM_DESC(clock_division_ratio, "Clock division ratio. Valid ranges are from 0x5 (1.31ms) to 0x7 (5.25ms). (default=" __MODULE_STRING(clock_division_ratio) ")"); module_param(heartbeat, int, 0); MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (1<=heartbeat<=3600, default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); module_param(nowayout, int, 0); -MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)"); +MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); module_init(sh_wdt_init); module_exit(sh_wdt_exit); -
diff --git a/drivers/eisa/eisa-bus.c b/drivers/eisa/eisa-bus.c index 6078e2f..3a365e1 100644 --- a/drivers/eisa/eisa-bus.c +++ b/drivers/eisa/eisa-bus.c
@@ -128,9 +128,23 @@ return 0; } +static int eisa_bus_uevent(struct device *dev, char **envp, int num_envp, + char *buffer, int buffer_size) +{ + struct eisa_device *edev = to_eisa_device(dev); + int i = 0; + int length = 0; + + add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &length, + "MODALIAS=" EISA_DEVICE_MODALIAS_FMT, edev->id.sig); + envp[i] = NULL; + return 0; +} + struct bus_type eisa_bus_type = { .name = "eisa", .match = eisa_bus_match, + .uevent = eisa_bus_uevent, }; int eisa_driver_register (struct eisa_driver *edrv) @@ -160,6 +174,14 @@ static DEVICE_ATTR(enabled, S_IRUGO, eisa_show_state, NULL); +static ssize_t eisa_show_modalias (struct device *dev, struct device_attribute *attr, char *buf) +{ + struct eisa_device *edev = to_eisa_device (dev); + return sprintf (buf, EISA_DEVICE_MODALIAS_FMT "\n", edev->id.sig); +} + +static DEVICE_ATTR(modalias, S_IRUGO, eisa_show_modalias, NULL); + static int __init eisa_init_device (struct eisa_root_device *root, struct eisa_device *edev, int slot) @@ -209,6 +231,7 @@ device_create_file (&edev->dev, &dev_attr_signature); device_create_file (&edev->dev, &dev_attr_enabled); + device_create_file (&edev->dev, &dev_attr_modalias); return 0; }
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index 06df92b..b0ee574 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c
@@ -243,6 +243,7 @@ static struct i2c_driver it87_isa_driver = { .driver = { + .owner = THIS_MODULE, .name = "it87-isa", }, .attach_adapter = it87_isa_attach_adapter,
diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c index a6ce7ab..fa1715b 100644 --- a/drivers/hwmon/lm78.c +++ b/drivers/hwmon/lm78.c
@@ -175,6 +175,7 @@ static struct i2c_driver lm78_isa_driver = { .driver = { + .owner = THIS_MODULE, .name = "lm78-isa", }, .attach_adapter = lm78_isa_attach_adapter,
diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c index ae05e48..236f9f2 100644 --- a/drivers/hwmon/pc87360.c +++ b/drivers/hwmon/pc87360.c
@@ -238,6 +238,7 @@ static struct i2c_driver pc87360_driver = { .driver = { + .owner = THIS_MODULE, .name = "pc87360", }, .attach_adapter = pc87360_detect,
diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c index 063f71c..3783af4 100644 --- a/drivers/hwmon/sis5595.c +++ b/drivers/hwmon/sis5595.c
@@ -200,6 +200,7 @@ static struct i2c_driver sis5595_driver = { .driver = { + .owner = THIS_MODULE, .name = "sis5595", }, .attach_adapter = sis5595_detect,
diff --git a/drivers/hwmon/smsc47b397.c b/drivers/hwmon/smsc47b397.c index b608618..a858693 100644 --- a/drivers/hwmon/smsc47b397.c +++ b/drivers/hwmon/smsc47b397.c
@@ -228,6 +228,7 @@ static struct i2c_driver smsc47b397_driver = { .driver = { + .owner = THIS_MODULE, .name = "smsc47b397", }, .attach_adapter = smsc47b397_detect,
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c index 825e8f7..6c81b84 100644 --- a/drivers/hwmon/smsc47m1.c +++ b/drivers/hwmon/smsc47m1.c
@@ -128,6 +128,7 @@ static struct i2c_driver smsc47m1_driver = { .driver = { + .owner = THIS_MODULE, .name = "smsc47m1", }, .attach_adapter = smsc47m1_detect,
diff --git a/drivers/hwmon/via686a.c b/drivers/hwmon/via686a.c index 166298f..95ae056 100644 --- a/drivers/hwmon/via686a.c +++ b/drivers/hwmon/via686a.c
@@ -574,6 +574,7 @@ smbus_driver and isa_driver, and clients could be of either kind */ static struct i2c_driver via686a_driver = { .driver = { + .owner = THIS_MODULE, .name = "via686a", }, .attach_adapter = via686a_detect,
diff --git a/drivers/hwmon/vt8231.c b/drivers/hwmon/vt8231.c index 686f3de..236ccf0 100644 --- a/drivers/hwmon/vt8231.c +++ b/drivers/hwmon/vt8231.c
@@ -587,6 +587,7 @@ static struct i2c_driver vt8231_driver = { .driver = { + .owner = THIS_MODULE, .name = "vt8231", }, .attach_adapter = vt8231_detect,
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 40301bc..b21d6b9 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c
@@ -903,6 +903,7 @@ static struct i2c_driver w83627ehf_driver = { .driver = { + .owner = THIS_MODULE, .name = "w83627ehf", }, .attach_adapter = w83627ehf_detect,
diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index 79368d5..30295028 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c
@@ -339,6 +339,7 @@ static struct i2c_driver w83627hf_driver = { .driver = { + .owner = THIS_MODULE, .name = "w83627hf", }, .attach_adapter = w83627hf_detect,
diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c index 7be469e..95221b1 100644 --- a/drivers/hwmon/w83781d.c +++ b/drivers/hwmon/w83781d.c
@@ -288,6 +288,7 @@ static struct i2c_driver w83781d_isa_driver = { .driver = { + .owner = THIS_MODULE, .name = "w83781d-isa", }, .attach_adapter = w83781d_isa_attach_adapter,
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig index 24383af..11935f6 100644 --- a/drivers/i2c/Kconfig +++ b/drivers/i2c/Kconfig
@@ -1,5 +1,5 @@ # -# Character device configuration +# I2C subsystem configuration # menu "I2C support"
diff --git a/drivers/i2c/algos/Kconfig b/drivers/i2c/algos/Kconfig index 3040801..c034820 100644 --- a/drivers/i2c/algos/Kconfig +++ b/drivers/i2c/algos/Kconfig
@@ -53,12 +53,6 @@ tristate "MPC8xx CPM I2C interface" depends on 8xx && I2C -config I2C_ALGO_SIBYTE - tristate "SiByte SMBus interface" - depends on SIBYTE_SB1xxx_SOC && I2C - help - Supports the SiByte SOC on-chip I2C interfaces (2 channels). - config I2C_ALGO_SGI tristate "I2C SGI interfaces" depends on I2C && (SGI_IP22 || SGI_IP32 || X86_VISWS)
diff --git a/drivers/i2c/algos/Makefile b/drivers/i2c/algos/Makefile index 867fe1f..208be04 100644 --- a/drivers/i2c/algos/Makefile +++ b/drivers/i2c/algos/Makefile
@@ -6,7 +6,6 @@ obj-$(CONFIG_I2C_ALGOPCF) += i2c-algo-pcf.o obj-$(CONFIG_I2C_ALGOPCA) += i2c-algo-pca.o obj-$(CONFIG_I2C_ALGOITE) += i2c-algo-ite.o -obj-$(CONFIG_I2C_ALGO_SIBYTE) += i2c-algo-sibyte.o obj-$(CONFIG_I2C_ALGO_SGI) += i2c-algo-sgi.o ifeq ($(CONFIG_I2C_DEBUG_ALGO),y)
diff --git a/drivers/i2c/algos/i2c-algo-bit.c b/drivers/i2c/algos/i2c-algo-bit.c index ab230c0..21c36bf 100644 --- a/drivers/i2c/algos/i2c-algo-bit.c +++ b/drivers/i2c/algos/i2c-algo-bit.c
@@ -76,17 +76,15 @@ * Raise scl line, and do checking for delays. This is necessary for slower * devices. */ -static inline int sclhi(struct i2c_algo_bit_data *adap) +static int sclhi(struct i2c_algo_bit_data *adap) { unsigned long start; setscl(adap,1); /* Not all adapters have scl sense line... */ - if (adap->getscl == NULL ) { - udelay(adap->udelay); - return 0; - } + if (!adap->getscl) + goto done; start=jiffies; while (! getscl(adap) ) { @@ -101,6 +99,8 @@ cond_resched(); } DEBSTAT(printk(KERN_DEBUG "needed %ld jiffies\n", jiffies-start)); + +done: udelay(adap->udelay); return 0; } @@ -121,7 +121,6 @@ DEBPROTO(printk(" Sr ")); setsda(adap,1); sclhi(adap); - udelay(adap->udelay); sdalo(adap); scllo(adap); @@ -306,7 +305,7 @@ * 0 chip did not answer * -x transmission error */ -static inline int try_address(struct i2c_adapter *i2c_adap, +static int try_address(struct i2c_adapter *i2c_adap, unsigned char addr, int retries) { struct i2c_algo_bit_data *adap = i2c_adap->algo_data; @@ -354,15 +353,11 @@ return (retval<0)? retval : -EFAULT; /* got a better one ?? */ } -#if 0 - /* from asm/delay.h */ - __delay(adap->mdelay * (loops_per_sec / 1000) ); -#endif } return wrcount; } -static inline int readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) +static int readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) { int inval; int rdcount=0; /* counts bytes read */ @@ -412,7 +407,7 @@ * -x an error occurred (like: -EREMOTEIO if the device did not answer, or * -ETIMEDOUT, for example if the lines are stuck...) */ -static inline int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) +static int bit_doAddress(struct i2c_adapter *i2c_adap, struct i2c_msg *msg) { unsigned short flags = msg->flags; unsigned short nak_ok = msg->flags & I2C_M_IGNORE_NAK; @@ -517,7 +512,7 @@ /* -----exported algorithm data: ------------------------------------- */ -static struct i2c_algorithm i2c_bit_algo = { +static const struct i2c_algorithm i2c_bit_algo = { .master_xfer = bit_xfer, .functionality = bit_func, };
diff --git a/drivers/i2c/algos/i2c-algo-pca.c b/drivers/i2c/algos/i2c-algo-pca.c index b88a6fc..9081c9f 100644 --- a/drivers/i2c/algos/i2c-algo-pca.c +++ b/drivers/i2c/algos/i2c-algo-pca.c
@@ -355,7 +355,7 @@ return 0; } -static struct i2c_algorithm pca_algo = { +static const struct i2c_algorithm pca_algo = { .master_xfer = pca_xfer, .functionality = pca_func, };
diff --git a/drivers/i2c/algos/i2c-algo-pcf.c b/drivers/i2c/algos/i2c-algo-pcf.c index 5b24930..3b20033 100644 --- a/drivers/i2c/algos/i2c-algo-pcf.c +++ b/drivers/i2c/algos/i2c-algo-pcf.c
@@ -458,7 +458,7 @@ /* -----exported algorithm data: ------------------------------------- */ -static struct i2c_algorithm pcf_algo = { +static const struct i2c_algorithm pcf_algo = { .master_xfer = pcf_xfer, .functionality = pcf_func, };
diff --git a/drivers/i2c/algos/i2c-algo-sgi.c b/drivers/i2c/algos/i2c-algo-sgi.c index 932c4fa..490d999 100644 --- a/drivers/i2c/algos/i2c-algo-sgi.c +++ b/drivers/i2c/algos/i2c-algo-sgi.c
@@ -157,7 +157,7 @@ return I2C_FUNC_SMBUS_EMUL; } -static struct i2c_algorithm sgi_algo = { +static const struct i2c_algorithm sgi_algo = { .master_xfer = sgi_xfer, .functionality = sgi_func, };
diff --git a/drivers/i2c/algos/i2c-algo-sibyte.c b/drivers/i2c/algos/i2c-algo-sibyte.c deleted file mode 100644 index 32d41c6..0000000 --- a/drivers/i2c/algos/i2c-algo-sibyte.c +++ /dev/null
@@ -1,215 +0,0 @@ -/* ------------------------------------------------------------------------- */ -/* i2c-algo-sibyte.c i2c driver algorithms for bit-shift adapters */ -/* ------------------------------------------------------------------------- */ -/* Copyright (C) 2001,2002,2003 Broadcom Corporation - Copyright (C) 1995-2000 Simon G. Vogl - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* ------------------------------------------------------------------------- */ - -/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even - Frodo Looijaard <frodol@dds.nl>. */ - -/* Ported for SiByte SOCs by Broadcom Corporation. */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> - -#include <asm/io.h> -#include <asm/sibyte/sb1250_regs.h> -#include <asm/sibyte/sb1250_smbus.h> - -#include <linux/i2c.h> -#include <linux/i2c-algo-sibyte.h> - -/* ----- global defines ----------------------------------------------- */ -#define SMB_CSR(a,r) ((long)(a->reg_base + r)) - -/* ----- global variables --------------------------------------------- */ - -/* module parameters: - */ -static int bit_scan; /* have a look at what's hanging 'round */ - - -static int smbus_xfer(struct i2c_adapter *i2c_adap, u16 addr, - unsigned short flags, char read_write, - u8 command, int size, union i2c_smbus_data * data) -{ - struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data; - int data_bytes = 0; - int error; - - while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY) - ; - - switch (size) { - case I2C_SMBUS_QUICK: - csr_out32((V_SMB_ADDR(addr) | (read_write == I2C_SMBUS_READ ? M_SMB_QDATA : 0) | - V_SMB_TT_QUICKCMD), SMB_CSR(adap, R_SMB_START)); - break; - case I2C_SMBUS_BYTE: - if (read_write == I2C_SMBUS_READ) { - csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_RD1BYTE), - SMB_CSR(adap, R_SMB_START)); - data_bytes = 1; - } else { - csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD)); - csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR1BYTE), - SMB_CSR(adap, R_SMB_START)); - } - break; - case I2C_SMBUS_BYTE_DATA: - csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD)); - if (read_write == I2C_SMBUS_READ) { - csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_CMD_RD1BYTE), - SMB_CSR(adap, R_SMB_START)); - data_bytes = 1; - } else { - csr_out32(V_SMB_LB(data->byte), SMB_CSR(adap, R_SMB_DATA)); - csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR2BYTE), - SMB_CSR(adap, R_SMB_START)); - } - break; - case I2C_SMBUS_WORD_DATA: - csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD)); - if (read_write == I2C_SMBUS_READ) { - csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_CMD_RD2BYTE), - SMB_CSR(adap, R_SMB_START)); - data_bytes = 2; - } else { - csr_out32(V_SMB_LB(data->word & 0xff), SMB_CSR(adap, R_SMB_DATA)); - csr_out32(V_SMB_MB(data->word >> 8), SMB_CSR(adap, R_SMB_DATA)); - csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR2BYTE), - SMB_CSR(adap, R_SMB_START)); - } - break; - default: - return -1; /* XXXKW better error code? */ - } - - while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY) - ; - - error = csr_in32(SMB_CSR(adap, R_SMB_STATUS)); - if (error & M_SMB_ERROR) { - /* Clear error bit by writing a 1 */ - csr_out32(M_SMB_ERROR, SMB_CSR(adap, R_SMB_STATUS)); - return -1; /* XXXKW better error code? */ - } - - if (data_bytes == 1) - data->byte = csr_in32(SMB_CSR(adap, R_SMB_DATA)) & 0xff; - if (data_bytes == 2) - data->word = csr_in32(SMB_CSR(adap, R_SMB_DATA)) & 0xffff; - - return 0; -} - -static int algo_control(struct i2c_adapter *adapter, - unsigned int cmd, unsigned long arg) -{ - return 0; -} - -static u32 bit_func(struct i2c_adapter *adap) -{ - return (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | - I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA); -} - - -/* -----exported algorithm data: ------------------------------------- */ - -static struct i2c_algorithm i2c_sibyte_algo = { - .smbus_xfer = smbus_xfer, - .algo_control = algo_control, /* ioctl */ - .functionality = bit_func, -}; - -/* - * registering functions to load algorithms at runtime - */ -int i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed) -{ - int i; - struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data; - - /* register new adapter to i2c module... */ - i2c_adap->algo = &i2c_sibyte_algo; - - /* Set the frequency to 100 kHz */ - csr_out32(speed, SMB_CSR(adap,R_SMB_FREQ)); - csr_out32(0, SMB_CSR(adap,R_SMB_CONTROL)); - - /* scan bus */ - if (bit_scan) { - union i2c_smbus_data data; - int rc; - printk(KERN_INFO " i2c-algo-sibyte.o: scanning bus %s.\n", - i2c_adap->name); - for (i = 0x00; i < 0x7f; i++) { - /* XXXKW is this a realistic probe? */ - rc = smbus_xfer(i2c_adap, i, 0, I2C_SMBUS_READ, 0, - I2C_SMBUS_BYTE_DATA, &data); - if (!rc) { - printk("(%02x)",i); - } else - printk("."); - } - printk("\n"); - } - - return i2c_add_adapter(i2c_adap); -} - - -int i2c_sibyte_del_bus(struct i2c_adapter *adap) -{ - int res; - - if ((res = i2c_del_adapter(adap)) < 0) - return res; - - return 0; -} - -int __init i2c_algo_sibyte_init (void) -{ - printk("i2c-algo-sibyte.o: i2c SiByte algorithm module\n"); - return 0; -} - - -EXPORT_SYMBOL(i2c_sibyte_add_bus); -EXPORT_SYMBOL(i2c_sibyte_del_bus); - -#ifdef MODULE -MODULE_AUTHOR("Kip Walker, Broadcom Corp."); -MODULE_DESCRIPTION("SiByte I2C-Bus algorithm"); -module_param(bit_scan, int, 0); -MODULE_PARM_DESC(bit_scan, "Scan for active chips on the bus"); -MODULE_LICENSE("GPL"); - -int init_module(void) -{ - return i2c_algo_sibyte_init(); -} - -void cleanup_module(void) -{ -} -#endif
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 884320e..9e56c39 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig
@@ -75,11 +75,11 @@ will be called i2c-amd8111. config I2C_AU1550 - tristate "Au1550 SMBus interface" - depends on I2C && SOC_AU1550 + tristate "Au1550/Au1200 SMBus interface" + depends on I2C && (SOC_AU1550 || SOC_AU1200) help If you say yes to this option, support will be included for the - Au1550 SMBus interface. + Au1550 and Au1200 SMBus interface. This driver can also be built as a module. If so, the module will be called i2c-au1550. @@ -287,6 +287,16 @@ This driver can also be built as a module. If so, the module will be called i2c-ocores. +config I2C_OMAP + tristate "OMAP I2C adapter" + depends on I2C && ARCH_OMAP + default y if MACH_OMAP_H3 || MACH_OMAP_OSK + help + If you say yes to this option, support will be included for the + I2C interface on the Texas Instruments OMAP1/2 family of processors. + Like OMAP1510/1610/1710/5912 and OMAP242x. + For details see http://www.ti.com/omap. + config I2C_PARPORT tristate "Parallel port adapter" depends on I2C && PARPORT @@ -482,19 +492,19 @@ will be called i2c-via. config I2C_VIAPRO - tristate "VIA 82C596/82C686/823x" + tristate "VIA 82C596/82C686/82xx" depends on I2C && PCI help If you say yes to this option, support will be included for the VIA - 82C596/82C686/823x I2C interfaces. Specifically, the following + 82C596/82C686/82xx I2C interfaces. Specifically, the following chipsets are supported: - 82C596A/B - 82C686A/B - 8231 - 8233 - 8233A - 8235 - 8237 + VT82C596A/B + VT82C686A/B + VT8231 + VT8233/A + VT8235 + VT8237R/A + VT8251 This driver can also be built as a module. If so, the module will be called i2c-viapro.
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile index ac56df5..493c872 100644 --- a/drivers/i2c/busses/Makefile +++ b/drivers/i2c/busses/Makefile
@@ -24,6 +24,7 @@ obj-$(CONFIG_I2C_MV64XXX) += i2c-mv64xxx.o obj-$(CONFIG_I2C_NFORCE2) += i2c-nforce2.o obj-$(CONFIG_I2C_OCORES) += i2c-ocores.o +obj-$(CONFIG_I2C_OMAP) += i2c-omap.o obj-$(CONFIG_I2C_PARPORT) += i2c-parport.o obj-$(CONFIG_I2C_PARPORT_LIGHT) += i2c-parport-light.o obj-$(CONFIG_I2C_PCA_ISA) += i2c-pca-isa.o
diff --git a/drivers/i2c/busses/i2c-ali1535.c b/drivers/i2c/busses/i2c-ali1535.c index d3ef46a..e75d339 100644 --- a/drivers/i2c/busses/i2c-ali1535.c +++ b/drivers/i2c/busses/i2c-ali1535.c
@@ -468,7 +468,7 @@ I2C_FUNC_SMBUS_BLOCK_DATA; } -static struct i2c_algorithm smbus_algorithm = { +static const struct i2c_algorithm smbus_algorithm = { .smbus_xfer = ali1535_access, .functionality = ali1535_func, };
diff --git a/drivers/i2c/busses/i2c-ali1563.c b/drivers/i2c/busses/i2c-ali1563.c index e6f6320..33fbb47 100644 --- a/drivers/i2c/busses/i2c-ali1563.c +++ b/drivers/i2c/busses/i2c-ali1563.c
@@ -367,7 +367,7 @@ release_region(ali1563_smba,ALI1563_SMB_IOSIZE); } -static struct i2c_algorithm ali1563_algorithm = { +static const struct i2c_algorithm ali1563_algorithm = { .smbus_xfer = ali1563_access, .functionality = ali1563_func, };
diff --git a/drivers/i2c/busses/i2c-ali15x3.c b/drivers/i2c/busses/i2c-ali15x3.c index 7a5c094..3f11b6e 100644 --- a/drivers/i2c/busses/i2c-ali15x3.c +++ b/drivers/i2c/busses/i2c-ali15x3.c
@@ -463,7 +463,7 @@ I2C_FUNC_SMBUS_BLOCK_DATA; } -static struct i2c_algorithm smbus_algorithm = { +static const struct i2c_algorithm smbus_algorithm = { .smbus_xfer = ali15x3_access, .functionality = ali15x3_func, };
diff --git a/drivers/i2c/busses/i2c-amd756.c b/drivers/i2c/busses/i2c-amd756.c index 1750ded..2d21afd 100644 --- a/drivers/i2c/busses/i2c-amd756.c +++ b/drivers/i2c/busses/i2c-amd756.c
@@ -294,7 +294,7 @@ I2C_FUNC_SMBUS_BLOCK_DATA | I2C_FUNC_SMBUS_PROC_CALL; } -static struct i2c_algorithm smbus_algorithm = { +static const struct i2c_algorithm smbus_algorithm = { .smbus_xfer = amd756_access, .functionality = amd756_func, };
diff --git a/drivers/i2c/busses/i2c-amd8111.c b/drivers/i2c/busses/i2c-amd8111.c index e5ef560..0fbc718 100644 --- a/drivers/i2c/busses/i2c-amd8111.c +++ b/drivers/i2c/busses/i2c-amd8111.c
@@ -316,7 +316,7 @@ I2C_FUNC_SMBUS_I2C_BLOCK | I2C_FUNC_SMBUS_HWPEC_CALC; } -static struct i2c_algorithm smbus_algorithm = { +static const struct i2c_algorithm smbus_algorithm = { .smbus_xfer = amd8111_access, .functionality = amd8111_func, };
diff --git a/drivers/i2c/busses/i2c-au1550.c b/drivers/i2c/busses/i2c-au1550.c index d06edce..d7e7c35 100644 --- a/drivers/i2c/busses/i2c-au1550.c +++ b/drivers/i2c/busses/i2c-au1550.c
@@ -34,8 +34,7 @@ #include <linux/errno.h> #include <linux/i2c.h> -#include <asm/mach-au1x00/au1000.h> -#include <asm/mach-pb1x00/pb1550.h> +#include <asm/mach-au1x00/au1xxx.h> #include <asm/mach-au1x00/au1xxx_psc.h> #include "i2c-au1550.h" @@ -118,13 +117,19 @@ /* Reset the FIFOs, clear events. */ - sp->psc_smbpcr = PSC_SMBPCR_DC; + stat = sp->psc_smbstat; sp->psc_smbevnt = PSC_SMBEVNT_ALLCLR; au_sync(); - do { - stat = sp->psc_smbpcr; + + if (!(stat & PSC_SMBSTAT_TE) || !(stat & PSC_SMBSTAT_RE)) { + sp->psc_smbpcr = PSC_SMBPCR_DC; au_sync(); - } while ((stat & PSC_SMBPCR_DC) != 0); + do { + stat = sp->psc_smbpcr; + au_sync(); + } while ((stat & PSC_SMBPCR_DC) != 0); + udelay(50); + } /* Write out the i2c chip address and specify operation */ @@ -279,10 +284,10 @@ static u32 au1550_func(struct i2c_adapter *adap) { - return I2C_FUNC_I2C; + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; } -static struct i2c_algorithm au1550_algo = { +static const struct i2c_algorithm au1550_algo = { .master_xfer = au1550_xfer, .functionality = au1550_func, };
diff --git a/drivers/i2c/busses/i2c-elektor.c b/drivers/i2c/busses/i2c-elektor.c index 59f8308..caa8e5c 100644 --- a/drivers/i2c/busses/i2c-elektor.c +++ b/drivers/i2c/busses/i2c-elektor.c
@@ -196,7 +196,6 @@ .getclock = pcf_isa_getclock, .waitforpin = pcf_isa_waitforpin, .udelay = 10, - .mdelay = 10, .timeout = 100, };
diff --git a/drivers/i2c/busses/i2c-hydra.c b/drivers/i2c/busses/i2c-hydra.c index e0cb3b0..457d48a 100644 --- a/drivers/i2c/busses/i2c-hydra.c +++ b/drivers/i2c/busses/i2c-hydra.c
@@ -99,7 +99,6 @@ .getsda = hydra_bit_getsda, .getscl = hydra_bit_getscl, .udelay = 5, - .mdelay = 5, .timeout = HZ };
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 7be1d0a..bbb2fbe 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c
@@ -434,7 +434,7 @@ | (isich4 ? I2C_FUNC_SMBUS_HWPEC_CALC : 0); } -static struct i2c_algorithm smbus_algorithm = { +static const struct i2c_algorithm smbus_algorithm = { .smbus_xfer = i801_access, .functionality = i801_func, };
diff --git a/drivers/i2c/busses/i2c-i810.c b/drivers/i2c/busses/i2c-i810.c index 748be30..b66fb6b 100644 --- a/drivers/i2c/busses/i2c-i810.c +++ b/drivers/i2c/busses/i2c-i810.c
@@ -166,7 +166,6 @@ .getsda = bit_i810i2c_getsda, .getscl = bit_i810i2c_getscl, .udelay = CYCLE_DELAY, - .mdelay = CYCLE_DELAY, .timeout = TIMEOUT, }; @@ -182,7 +181,6 @@ .getsda = bit_i810ddc_getsda, .getscl = bit_i810ddc_getscl, .udelay = CYCLE_DELAY, - .mdelay = CYCLE_DELAY, .timeout = TIMEOUT, };
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c index 0599bbd..5bccb5d 100644 --- a/drivers/i2c/busses/i2c-ibm_iic.c +++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -625,7 +625,7 @@ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR; } -static struct i2c_algorithm iic_algo = { +static const struct i2c_algorithm iic_algo = { .master_xfer = iic_xfer, .functionality = iic_func };
diff --git a/drivers/i2c/busses/i2c-iop3xx.c b/drivers/i2c/busses/i2c-iop3xx.c index 48c5693..8e41315 100644 --- a/drivers/i2c/busses/i2c-iop3xx.c +++ b/drivers/i2c/busses/i2c-iop3xx.c
@@ -401,7 +401,7 @@ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; } -static struct i2c_algorithm iop3xx_i2c_algo = { +static const struct i2c_algorithm iop3xx_i2c_algo = { .master_xfer = iop3xx_i2c_master_xfer, .algo_control = iop3xx_i2c_algo_control, .functionality = iop3xx_i2c_func,
diff --git a/drivers/i2c/busses/i2c-isa.c b/drivers/i2c/busses/i2c-isa.c index c3e1d3e8..4380653 100644 --- a/drivers/i2c/busses/i2c-isa.c +++ b/drivers/i2c/busses/i2c-isa.c
@@ -43,7 +43,7 @@ static u32 isa_func(struct i2c_adapter *adapter); /* This is the actual algorithm we define */ -static struct i2c_algorithm isa_algorithm = { +static const struct i2c_algorithm isa_algorithm = { .functionality = isa_func, }; @@ -89,9 +89,14 @@ dev_dbg(&isa_adapter.dev, "Driver %s registered\n", driver->driver.name); /* Now look for clients */ - driver->attach_adapter(&isa_adapter); - - return 0; + res = driver->attach_adapter(&isa_adapter); + if (res) { + dev_err(&isa_adapter.dev, + "Driver %s failed to attach adapter, unregistering\n", + driver->driver.name); + driver_unregister(&driver->driver); + } + return res; } int i2c_isa_del_driver(struct i2c_driver *driver) @@ -125,6 +130,8 @@ static int __init i2c_isa_init(void) { + int err; + mutex_init(&isa_adapter.clist_lock); INIT_LIST_HEAD(&isa_adapter.clients); @@ -133,8 +140,16 @@ sprintf(isa_adapter.dev.bus_id, "i2c-%d", isa_adapter.nr); isa_adapter.dev.driver = &i2c_adapter_driver; isa_adapter.dev.release = &i2c_adapter_dev_release; - device_register(&isa_adapter.dev); - device_create_file(&isa_adapter.dev, &dev_attr_name); + err = device_register(&isa_adapter.dev); + if (err) { + printk(KERN_ERR "i2c-isa: Failed to register device\n"); + goto exit; + } + err = device_create_file(&isa_adapter.dev, &dev_attr_name); + if (err) { + printk(KERN_ERR "i2c-isa: Failed to create name file\n"); + goto exit_unregister; + } /* Add this adapter to the i2c_adapter class */ memset(&isa_adapter.class_dev, 0x00, sizeof(struct class_device)); @@ -142,11 +157,24 @@ isa_adapter.class_dev.class = &i2c_adapter_class; strlcpy(isa_adapter.class_dev.class_id, isa_adapter.dev.bus_id, BUS_ID_SIZE); - class_device_register(&isa_adapter.class_dev); + err = class_device_register(&isa_adapter.class_dev); + if (err) { + printk(KERN_ERR "i2c-isa: Failed to register class device\n"); + goto exit_remove_name; + } dev_dbg(&isa_adapter.dev, "%s registered\n", isa_adapter.name); return 0; + +exit_remove_name: + device_remove_file(&isa_adapter.dev, &dev_attr_name); +exit_unregister: + init_completion(&isa_adapter.dev_released); /* Needed? */ + device_unregister(&isa_adapter.dev); + wait_for_completion(&isa_adapter.dev_released); +exit: + return err; } static void __exit i2c_isa_exit(void)
diff --git a/drivers/i2c/busses/i2c-ixp2000.c b/drivers/i2c/busses/i2c-ixp2000.c index cd6f45d..dd3f4cd 100644 --- a/drivers/i2c/busses/i2c-ixp2000.c +++ b/drivers/i2c/busses/i2c-ixp2000.c
@@ -114,7 +114,6 @@ drv_data->algo_data.getsda = ixp2000_bit_getsda; drv_data->algo_data.getscl = ixp2000_bit_getscl; drv_data->algo_data.udelay = 6; - drv_data->algo_data.mdelay = 6; drv_data->algo_data.timeout = 100; drv_data->adapter.id = I2C_HW_B_IXP2000,
diff --git a/drivers/i2c/busses/i2c-ixp4xx.c b/drivers/i2c/busses/i2c-ixp4xx.c index 2ed0711..ab57325 100644 --- a/drivers/i2c/busses/i2c-ixp4xx.c +++ b/drivers/i2c/busses/i2c-ixp4xx.c
@@ -122,7 +122,6 @@ drv_data->algo_data.getsda = ixp4xx_bit_getsda; drv_data->algo_data.getscl = ixp4xx_bit_getscl; drv_data->algo_data.udelay = 10; - drv_data->algo_data.mdelay = 10; drv_data->algo_data.timeout = 100; drv_data->adapter.id = I2C_HW_B_IXP4XX;
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c index 377ab40..155a986 100644 --- a/drivers/i2c/busses/i2c-mpc.c +++ b/drivers/i2c/busses/i2c-mpc.c
@@ -272,7 +272,7 @@ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; } -static struct i2c_algorithm mpc_algo = { +static const struct i2c_algorithm mpc_algo = { .master_xfer = mpc_xfer, .functionality = mpc_functionality, };
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c index ac5cde1..eacbaf7 100644 --- a/drivers/i2c/busses/i2c-mv64xxx.c +++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -431,7 +431,7 @@ return num; } -static struct i2c_algorithm mv64xxx_i2c_algo = { +static const struct i2c_algorithm mv64xxx_i2c_algo = { .master_xfer = mv64xxx_i2c_xfer, .functionality = mv64xxx_i2c_functionality, };
diff --git a/drivers/i2c/busses/i2c-nforce2.c b/drivers/i2c/busses/i2c-nforce2.c index 604b49e..e0292e4 100644 --- a/drivers/i2c/busses/i2c-nforce2.c +++ b/drivers/i2c/busses/i2c-nforce2.c
@@ -109,7 +109,7 @@ static u32 nforce2_func(struct i2c_adapter *adapter); -static struct i2c_algorithm smbus_algorithm = { +static const struct i2c_algorithm smbus_algorithm = { .smbus_xfer = nforce2_access, .functionality = nforce2_func, };
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c index 5928240..952a28d 100644 --- a/drivers/i2c/busses/i2c-ocores.c +++ b/drivers/i2c/busses/i2c-ocores.c
@@ -199,7 +199,7 @@ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; } -static struct i2c_algorithm ocores_algorithm = { +static const struct i2c_algorithm ocores_algorithm = { .master_xfer = ocores_xfer, .functionality = ocores_func, };
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c new file mode 100644 index 0000000..81d87d2 --- /dev/null +++ b/drivers/i2c/busses/i2c-omap.c
@@ -0,0 +1,676 @@ +/* + * TI OMAP I2C master mode driver + * + * Copyright (C) 2003 MontaVista Software, Inc. + * Copyright (C) 2004 Texas Instruments. + * + * Updated to work with multiple I2C interfaces on 24xx by + * Tony Lindgren <tony@atomide.com> and Imre Deak <imre.deak@nokia.com> + * Copyright (C) 2005 Nokia Corporation + * + * Cleaned up by Juha Yrjölä <juha.yrjola@nokia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/err.h> +#include <linux/interrupt.h> +#include <linux/completion.h> +#include <linux/platform_device.h> +#include <linux/clk.h> + +#include <asm/io.h> + +/* timeout waiting for the controller to respond */ +#define OMAP_I2C_TIMEOUT (msecs_to_jiffies(1000)) + +#define OMAP_I2C_REV_REG 0x00 +#define OMAP_I2C_IE_REG 0x04 +#define OMAP_I2C_STAT_REG 0x08 +#define OMAP_I2C_IV_REG 0x0c +#define OMAP_I2C_SYSS_REG 0x10 +#define OMAP_I2C_BUF_REG 0x14 +#define OMAP_I2C_CNT_REG 0x18 +#define OMAP_I2C_DATA_REG 0x1c +#define OMAP_I2C_SYSC_REG 0x20 +#define OMAP_I2C_CON_REG 0x24 +#define OMAP_I2C_OA_REG 0x28 +#define OMAP_I2C_SA_REG 0x2c +#define OMAP_I2C_PSC_REG 0x30 +#define OMAP_I2C_SCLL_REG 0x34 +#define OMAP_I2C_SCLH_REG 0x38 +#define OMAP_I2C_SYSTEST_REG 0x3c + +/* I2C Interrupt Enable Register (OMAP_I2C_IE): */ +#define OMAP_I2C_IE_XRDY (1 << 4) /* TX data ready int enable */ +#define OMAP_I2C_IE_RRDY (1 << 3) /* RX data ready int enable */ +#define OMAP_I2C_IE_ARDY (1 << 2) /* Access ready int enable */ +#define OMAP_I2C_IE_NACK (1 << 1) /* No ack interrupt enable */ +#define OMAP_I2C_IE_AL (1 << 0) /* Arbitration lost int ena */ + +/* I2C Status Register (OMAP_I2C_STAT): */ +#define OMAP_I2C_STAT_SBD (1 << 15) /* Single byte data */ +#define OMAP_I2C_STAT_BB (1 << 12) /* Bus busy */ +#define OMAP_I2C_STAT_ROVR (1 << 11) /* Receive overrun */ +#define OMAP_I2C_STAT_XUDF (1 << 10) /* Transmit underflow */ +#define OMAP_I2C_STAT_AAS (1 << 9) /* Address as slave */ +#define OMAP_I2C_STAT_AD0 (1 << 8) /* Address zero */ +#define OMAP_I2C_STAT_XRDY (1 << 4) /* Transmit data ready */ +#define OMAP_I2C_STAT_RRDY (1 << 3) /* Receive data ready */ +#define OMAP_I2C_STAT_ARDY (1 << 2) /* Register access ready */ +#define OMAP_I2C_STAT_NACK (1 << 1) /* No ack interrupt enable */ +#define OMAP_I2C_STAT_AL (1 << 0) /* Arbitration lost int ena */ + +/* I2C Buffer Configuration Register (OMAP_I2C_BUF): */ +#define OMAP_I2C_BUF_RDMA_EN (1 << 15) /* RX DMA channel enable */ +#define OMAP_I2C_BUF_XDMA_EN (1 << 7) /* TX DMA channel enable */ + +/* I2C Configuration Register (OMAP_I2C_CON): */ +#define OMAP_I2C_CON_EN (1 << 15) /* I2C module enable */ +#define OMAP_I2C_CON_BE (1 << 14) /* Big endian mode */ +#define OMAP_I2C_CON_STB (1 << 11) /* Start byte mode (master) */ +#define OMAP_I2C_CON_MST (1 << 10) /* Master/slave mode */ +#define OMAP_I2C_CON_TRX (1 << 9) /* TX/RX mode (master only) */ +#define OMAP_I2C_CON_XA (1 << 8) /* Expand address */ +#define OMAP_I2C_CON_RM (1 << 2) /* Repeat mode (master only) */ +#define OMAP_I2C_CON_STP (1 << 1) /* Stop cond (master only) */ +#define OMAP_I2C_CON_STT (1 << 0) /* Start condition (master) */ + +/* I2C System Test Register (OMAP_I2C_SYSTEST): */ +#ifdef DEBUG +#define OMAP_I2C_SYSTEST_ST_EN (1 << 15) /* System test enable */ +#define OMAP_I2C_SYSTEST_FREE (1 << 14) /* Free running mode */ +#define OMAP_I2C_SYSTEST_TMODE_MASK (3 << 12) /* Test mode select */ +#define OMAP_I2C_SYSTEST_TMODE_SHIFT (12) /* Test mode select */ +#define OMAP_I2C_SYSTEST_SCL_I (1 << 3) /* SCL line sense in */ +#define OMAP_I2C_SYSTEST_SCL_O (1 << 2) /* SCL line drive out */ +#define OMAP_I2C_SYSTEST_SDA_I (1 << 1) /* SDA line sense in */ +#define OMAP_I2C_SYSTEST_SDA_O (1 << 0) /* SDA line drive out */ +#endif + +/* I2C System Status register (OMAP_I2C_SYSS): */ +#define OMAP_I2C_SYSS_RDONE (1 << 0) /* Reset Done */ + +/* I2C System Configuration Register (OMAP_I2C_SYSC): */ +#define OMAP_I2C_SYSC_SRST (1 << 1) /* Soft Reset */ + +/* REVISIT: Use platform_data instead of module parameters */ +/* Fast Mode = 400 kHz, Standard = 100 kHz */ +static int clock = 100; /* Default: 100 kHz */ +module_param(clock, int, 0); +MODULE_PARM_DESC(clock, "Set I2C clock in kHz: 400=fast mode (default == 100)"); + +struct omap_i2c_dev { + struct device *dev; + void __iomem *base; /* virtual */ + int irq; + struct clk *iclk; /* Interface clock */ + struct clk *fclk; /* Functional clock */ + struct completion cmd_complete; + struct resource *ioarea; + u16 cmd_err; + u8 *buf; + size_t buf_len; + struct i2c_adapter adapter; + unsigned rev1:1; +}; + +static inline void omap_i2c_write_reg(struct omap_i2c_dev *i2c_dev, + int reg, u16 val) +{ + __raw_writew(val, i2c_dev->base + reg); +} + +static inline u16 omap_i2c_read_reg(struct omap_i2c_dev *i2c_dev, int reg) +{ + return __raw_readw(i2c_dev->base + reg); +} + +static int omap_i2c_get_clocks(struct omap_i2c_dev *dev) +{ + if (cpu_is_omap16xx() || cpu_is_omap24xx()) { + dev->iclk = clk_get(dev->dev, "i2c_ick"); + if (IS_ERR(dev->iclk)) { + dev->iclk = NULL; + return -ENODEV; + } + } + + dev->fclk = clk_get(dev->dev, "i2c_fck"); + if (IS_ERR(dev->fclk)) { + if (dev->iclk != NULL) { + clk_put(dev->iclk); + dev->iclk = NULL; + } + dev->fclk = NULL; + return -ENODEV; + } + + return 0; +} + +static void omap_i2c_put_clocks(struct omap_i2c_dev *dev) +{ + clk_put(dev->fclk); + dev->fclk = NULL; + if (dev->iclk != NULL) { + clk_put(dev->iclk); + dev->iclk = NULL; + } +} + +static void omap_i2c_enable_clocks(struct omap_i2c_dev *dev) +{ + if (dev->iclk != NULL) + clk_enable(dev->iclk); + clk_enable(dev->fclk); +} + +static void omap_i2c_disable_clocks(struct omap_i2c_dev *dev) +{ + if (dev->iclk != NULL) + clk_disable(dev->iclk); + clk_disable(dev->fclk); +} + +static int omap_i2c_init(struct omap_i2c_dev *dev) +{ + u16 psc = 0; + unsigned long fclk_rate = 12000000; + unsigned long timeout; + + if (!dev->rev1) { + omap_i2c_write_reg(dev, OMAP_I2C_SYSC_REG, OMAP_I2C_SYSC_SRST); + /* For some reason we need to set the EN bit before the + * reset done bit gets set. */ + timeout = jiffies + OMAP_I2C_TIMEOUT; + omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, OMAP_I2C_CON_EN); + while (!(omap_i2c_read_reg(dev, OMAP_I2C_SYSS_REG) & + OMAP_I2C_SYSS_RDONE)) { + if (time_after(jiffies, timeout)) { + dev_warn(dev->dev, "timeout waiting" + "for controller reset\n"); + return -ETIMEDOUT; + } + msleep(1); + } + } + omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0); + + if (cpu_class_is_omap1()) { + struct clk *armxor_ck; + + armxor_ck = clk_get(NULL, "armxor_ck"); + if (IS_ERR(armxor_ck)) + dev_warn(dev->dev, "Could not get armxor_ck\n"); + else { + fclk_rate = clk_get_rate(armxor_ck); + clk_put(armxor_ck); + } + /* TRM for 5912 says the I2C clock must be prescaled to be + * between 7 - 12 MHz. The XOR input clock is typically + * 12, 13 or 19.2 MHz. So we should have code that produces: + * + * XOR MHz Divider Prescaler + * 12 1 0 + * 13 2 1 + * 19.2 2 1 + */ + if (fclk_rate > 16000000) + psc = (fclk_rate + 8000000) / 12000000; + } + + /* Setup clock prescaler to obtain approx 12MHz I2C module clock: */ + omap_i2c_write_reg(dev, OMAP_I2C_PSC_REG, psc); + + /* Program desired operating rate */ + fclk_rate /= (psc + 1) * 1000; + if (psc > 2) + psc = 2; + + omap_i2c_write_reg(dev, OMAP_I2C_SCLL_REG, + fclk_rate / (clock * 2) - 7 + psc); + omap_i2c_write_reg(dev, OMAP_I2C_SCLH_REG, + fclk_rate / (clock * 2) - 7 + psc); + + /* Take the I2C module out of reset: */ + omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, OMAP_I2C_CON_EN); + + /* Enable interrupts */ + omap_i2c_write_reg(dev, OMAP_I2C_IE_REG, + (OMAP_I2C_IE_XRDY | OMAP_I2C_IE_RRDY | + OMAP_I2C_IE_ARDY | OMAP_I2C_IE_NACK | + OMAP_I2C_IE_AL)); + return 0; +} + +/* + * Waiting on Bus Busy + */ +static int omap_i2c_wait_for_bb(struct omap_i2c_dev *dev) +{ + unsigned long timeout; + + timeout = jiffies + OMAP_I2C_TIMEOUT; + while (omap_i2c_read_reg(dev, OMAP_I2C_STAT_REG) & OMAP_I2C_STAT_BB) { + if (time_after(jiffies, timeout)) { + dev_warn(dev->dev, "timeout waiting for bus ready\n"); + return -ETIMEDOUT; + } + msleep(1); + } + + return 0; +} + +/* + * Low level master read/write transaction. + */ +static int omap_i2c_xfer_msg(struct i2c_adapter *adap, + struct i2c_msg *msg, int stop) +{ + struct omap_i2c_dev *dev = i2c_get_adapdata(adap); + int r; + u16 w; + + dev_dbg(dev->dev, "addr: 0x%04x, len: %d, flags: 0x%x, stop: %d\n", + msg->addr, msg->len, msg->flags, stop); + + if (msg->len == 0) + return -EINVAL; + + omap_i2c_write_reg(dev, OMAP_I2C_SA_REG, msg->addr); + + /* REVISIT: Could the STB bit of I2C_CON be used with probing? */ + dev->buf = msg->buf; + dev->buf_len = msg->len; + + omap_i2c_write_reg(dev, OMAP_I2C_CNT_REG, dev->buf_len); + + init_completion(&dev->cmd_complete); + dev->cmd_err = 0; + + w = OMAP_I2C_CON_EN | OMAP_I2C_CON_MST | OMAP_I2C_CON_STT; + if (msg->flags & I2C_M_TEN) + w |= OMAP_I2C_CON_XA; + if (!(msg->flags & I2C_M_RD)) + w |= OMAP_I2C_CON_TRX; + if (stop) + w |= OMAP_I2C_CON_STP; + omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, w); + + r = wait_for_completion_interruptible_timeout(&dev->cmd_complete, + OMAP_I2C_TIMEOUT); + dev->buf_len = 0; + if (r < 0) + return r; + if (r == 0) { + dev_err(dev->dev, "controller timed out\n"); + omap_i2c_init(dev); + return -ETIMEDOUT; + } + + if (likely(!dev->cmd_err)) + return 0; + + /* We have an error */ + if (dev->cmd_err & (OMAP_I2C_STAT_AL | OMAP_I2C_STAT_ROVR | + OMAP_I2C_STAT_XUDF)) { + omap_i2c_init(dev); + return -EIO; + } + + if (dev->cmd_err & OMAP_I2C_STAT_NACK) { + if (msg->flags & I2C_M_IGNORE_NAK) + return 0; + if (stop) { + w = omap_i2c_read_reg(dev, OMAP_I2C_CON_REG); + w |= OMAP_I2C_CON_STP; + omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, w); + } + return -EREMOTEIO; + } + return -EIO; +} + + +/* + * Prepare controller for a transaction and call omap_i2c_xfer_msg + * to do the work during IRQ processing. + */ +static int +omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num) +{ + struct omap_i2c_dev *dev = i2c_get_adapdata(adap); + int i; + int r; + + omap_i2c_enable_clocks(dev); + + /* REVISIT: initialize and use adap->retries. This is an optional + * feature */ + if ((r = omap_i2c_wait_for_bb(dev)) < 0) + goto out; + + for (i = 0; i < num; i++) { + r = omap_i2c_xfer_msg(adap, &msgs[i], (i == (num - 1))); + if (r != 0) + break; + } + + if (r == 0) + r = num; +out: + omap_i2c_disable_clocks(dev); + return r; +} + +static u32 +omap_i2c_func(struct i2c_adapter *adap) +{ + return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK); +} + +static inline void +omap_i2c_complete_cmd(struct omap_i2c_dev *dev, u16 err) +{ + dev->cmd_err |= err; + complete(&dev->cmd_complete); +} + +static inline void +omap_i2c_ack_stat(struct omap_i2c_dev *dev, u16 stat) +{ + omap_i2c_write_reg(dev, OMAP_I2C_STAT_REG, stat); +} + +static irqreturn_t +omap_i2c_rev1_isr(int this_irq, void *dev_id, struct pt_regs *regs) +{ + struct omap_i2c_dev *dev = dev_id; + u16 iv, w; + + iv = omap_i2c_read_reg(dev, OMAP_I2C_IV_REG); + switch (iv) { + case 0x00: /* None */ + break; + case 0x01: /* Arbitration lost */ + dev_err(dev->dev, "Arbitration lost\n"); + omap_i2c_complete_cmd(dev, OMAP_I2C_STAT_AL); + break; + case 0x02: /* No acknowledgement */ + omap_i2c_complete_cmd(dev, OMAP_I2C_STAT_NACK); + omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, OMAP_I2C_CON_STP); + break; + case 0x03: /* Register access ready */ + omap_i2c_complete_cmd(dev, 0); + break; + case 0x04: /* Receive data ready */ + if (dev->buf_len) { + w = omap_i2c_read_reg(dev, OMAP_I2C_DATA_REG); + *dev->buf++ = w; + dev->buf_len--; + if (dev->buf_len) { + *dev->buf++ = w >> 8; + dev->buf_len--; + } + } else + dev_err(dev->dev, "RRDY IRQ while no data requested\n"); + break; + case 0x05: /* Transmit data ready */ + if (dev->buf_len) { + w = *dev->buf++; + dev->buf_len--; + if (dev->buf_len) { + w |= *dev->buf++ << 8; + dev->buf_len--; + } + omap_i2c_write_reg(dev, OMAP_I2C_DATA_REG, w); + } else + dev_err(dev->dev, "XRDY IRQ while no data to send\n"); + break; + default: + return IRQ_NONE; + } + + return IRQ_HANDLED; +} + +static irqreturn_t +omap_i2c_isr(int this_irq, void *dev_id, struct pt_regs *regs) +{ + struct omap_i2c_dev *dev = dev_id; + u16 bits; + u16 stat, w; + int count = 0; + + bits = omap_i2c_read_reg(dev, OMAP_I2C_IE_REG); + while ((stat = (omap_i2c_read_reg(dev, OMAP_I2C_STAT_REG))) & bits) { + dev_dbg(dev->dev, "IRQ (ISR = 0x%04x)\n", stat); + if (count++ == 100) { + dev_warn(dev->dev, "Too much work in one IRQ\n"); + break; + } + + omap_i2c_write_reg(dev, OMAP_I2C_STAT_REG, stat); + + if (stat & OMAP_I2C_STAT_ARDY) { + omap_i2c_complete_cmd(dev, 0); + continue; + } + if (stat & OMAP_I2C_STAT_RRDY) { + w = omap_i2c_read_reg(dev, OMAP_I2C_DATA_REG); + if (dev->buf_len) { + *dev->buf++ = w; + dev->buf_len--; + if (dev->buf_len) { + *dev->buf++ = w >> 8; + dev->buf_len--; + } + } else + dev_err(dev->dev, "RRDY IRQ while no data" + "requested\n"); + omap_i2c_ack_stat(dev, OMAP_I2C_STAT_RRDY); + continue; + } + if (stat & OMAP_I2C_STAT_XRDY) { + w = 0; + if (dev->buf_len) { + w = *dev->buf++; + dev->buf_len--; + if (dev->buf_len) { + w |= *dev->buf++ << 8; + dev->buf_len--; + } + } else + dev_err(dev->dev, "XRDY IRQ while no" + "data to send\n"); + omap_i2c_write_reg(dev, OMAP_I2C_DATA_REG, w); + omap_i2c_ack_stat(dev, OMAP_I2C_STAT_XRDY); + continue; + } + if (stat & OMAP_I2C_STAT_ROVR) { + dev_err(dev->dev, "Receive overrun\n"); + dev->cmd_err |= OMAP_I2C_STAT_ROVR; + } + if (stat & OMAP_I2C_STAT_XUDF) { + dev_err(dev->dev, "Transmit overflow\n"); + dev->cmd_err |= OMAP_I2C_STAT_XUDF; + } + if (stat & OMAP_I2C_STAT_NACK) { + omap_i2c_complete_cmd(dev, OMAP_I2C_STAT_NACK); + omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, + OMAP_I2C_CON_STP); + } + if (stat & OMAP_I2C_STAT_AL) { + dev_err(dev->dev, "Arbitration lost\n"); + omap_i2c_complete_cmd(dev, OMAP_I2C_STAT_AL); + } + } + + return count ? IRQ_HANDLED : IRQ_NONE; +} + +static const struct i2c_algorithm omap_i2c_algo = { + .master_xfer = omap_i2c_xfer, + .functionality = omap_i2c_func, +}; + +static int +omap_i2c_probe(struct platform_device *pdev) +{ + struct omap_i2c_dev *dev; + struct i2c_adapter *adap; + struct resource *mem, *irq, *ioarea; + int r; + + /* NOTE: driver uses the static register mapping */ + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem) { + dev_err(&pdev->dev, "no mem resource?\n"); + return -ENODEV; + } + irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!irq) { + dev_err(&pdev->dev, "no irq resource?\n"); + return -ENODEV; + } + + ioarea = request_mem_region(mem->start, (mem->end - mem->start) + 1, + pdev->name); + if (!ioarea) { + dev_err(&pdev->dev, "I2C region already claimed\n"); + return -EBUSY; + } + + if (clock > 200) + clock = 400; /* Fast mode */ + else + clock = 100; /* Standard mode */ + + dev = kzalloc(sizeof(struct omap_i2c_dev), GFP_KERNEL); + if (!dev) { + r = -ENOMEM; + goto err_release_region; + } + + dev->dev = &pdev->dev; + dev->irq = irq->start; + dev->base = (void __iomem *) IO_ADDRESS(mem->start); + platform_set_drvdata(pdev, dev); + + if ((r = omap_i2c_get_clocks(dev)) != 0) + goto err_free_mem; + + omap_i2c_enable_clocks(dev); + + if (cpu_is_omap15xx()) + dev->rev1 = omap_i2c_read_reg(dev, OMAP_I2C_REV_REG) < 0x20; + + /* reset ASAP, clearing any IRQs */ + omap_i2c_init(dev); + + r = request_irq(dev->irq, dev->rev1 ? omap_i2c_rev1_isr : omap_i2c_isr, + 0, pdev->name, dev); + + if (r) { + dev_err(dev->dev, "failure requesting irq %i\n", dev->irq); + goto err_unuse_clocks; + } + r = omap_i2c_read_reg(dev, OMAP_I2C_REV_REG) & 0xff; + dev_info(dev->dev, "bus %d rev%d.%d at %d kHz\n", + pdev->id, r >> 4, r & 0xf, clock); + + adap = &dev->adapter; + i2c_set_adapdata(adap, dev); + adap->owner = THIS_MODULE; + adap->class = I2C_CLASS_HWMON; + strncpy(adap->name, "OMAP I2C adapter", sizeof(adap->name)); + adap->algo = &omap_i2c_algo; + adap->dev.parent = &pdev->dev; + + /* i2c device drivers may be active on return from add_adapter() */ + r = i2c_add_adapter(adap); + if (r) { + dev_err(dev->dev, "failure adding adapter\n"); + goto err_free_irq; + } + + omap_i2c_disable_clocks(dev); + + return 0; + +err_free_irq: + free_irq(dev->irq, dev); +err_unuse_clocks: + omap_i2c_disable_clocks(dev); + omap_i2c_put_clocks(dev); +err_free_mem: + platform_set_drvdata(pdev, NULL); + kfree(dev); +err_release_region: + omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0); + release_mem_region(mem->start, (mem->end - mem->start) + 1); + + return r; +} + +static int +omap_i2c_remove(struct platform_device *pdev) +{ + struct omap_i2c_dev *dev = platform_get_drvdata(pdev); + struct resource *mem; + + platform_set_drvdata(pdev, NULL); + + free_irq(dev->irq, dev); + i2c_del_adapter(&dev->adapter); + omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0); + omap_i2c_put_clocks(dev); + kfree(dev); + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + release_mem_region(mem->start, (mem->end - mem->start) + 1); + return 0; +} + +static struct platform_driver omap_i2c_driver = { + .probe = omap_i2c_probe, + .remove = omap_i2c_remove, + .driver = { + .name = "i2c_omap", + .owner = THIS_MODULE, + }, +}; + +/* I2C may be needed to bring up other drivers */ +static int __init +omap_i2c_init_driver(void) +{ + return platform_driver_register(&omap_i2c_driver); +} +subsys_initcall(omap_i2c_init_driver); + +static void __exit omap_i2c_exit_driver(void) +{ + platform_driver_unregister(&omap_i2c_driver); +} +module_exit(omap_i2c_exit_driver); + +MODULE_AUTHOR("MontaVista Software, Inc. (and others)"); +MODULE_DESCRIPTION("TI OMAP I2C bus adapter"); +MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/busses/i2c-parport-light.c b/drivers/i2c/busses/i2c-parport-light.c index e09ebbb..5eb2bd2 100644 --- a/drivers/i2c/busses/i2c-parport-light.c +++ b/drivers/i2c/busses/i2c-parport-light.c
@@ -103,7 +103,6 @@ .getsda = parport_getsda, .getscl = parport_getscl, .udelay = 50, - .mdelay = 50, .timeout = HZ, };
diff --git a/drivers/i2c/busses/i2c-parport.c b/drivers/i2c/busses/i2c-parport.c index 934bd55..48a8294 100644 --- a/drivers/i2c/busses/i2c-parport.c +++ b/drivers/i2c/busses/i2c-parport.c
@@ -138,7 +138,6 @@ .getsda = parport_getsda, .getscl = parport_getscl, .udelay = 60, - .mdelay = 60, .timeout = HZ, };
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c index 8f2f65b..30c7a1b 100644 --- a/drivers/i2c/busses/i2c-piix4.c +++ b/drivers/i2c/busses/i2c-piix4.c
@@ -376,7 +376,7 @@ I2C_FUNC_SMBUS_BLOCK_DATA; } -static struct i2c_algorithm smbus_algorithm = { +static const struct i2c_algorithm smbus_algorithm = { .smbus_xfer = piix4_access, .functionality = piix4_func, };
diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c index d658d91..a508cb9 100644 --- a/drivers/i2c/busses/i2c-powermac.c +++ b/drivers/i2c/busses/i2c-powermac.c
@@ -175,7 +175,7 @@ } /* For now, we only handle smbus */ -static struct i2c_algorithm i2c_powermac_algorithm = { +static const struct i2c_algorithm i2c_powermac_algorithm = { .smbus_xfer = i2c_powermac_smbus_xfer, .master_xfer = i2c_powermac_master_xfer, .functionality = i2c_powermac_func,
diff --git a/drivers/i2c/busses/i2c-prosavage.c b/drivers/i2c/busses/i2c-prosavage.c index 9479525..7745e21 100644 --- a/drivers/i2c/busses/i2c-prosavage.c +++ b/drivers/i2c/busses/i2c-prosavage.c
@@ -180,7 +180,6 @@ p->algo.getsda = bit_s3via_getsda; p->algo.getscl = bit_s3via_getscl; p->algo.udelay = CYCLE_DELAY; - p->algo.mdelay = CYCLE_DELAY; p->algo.timeout = TIMEOUT; p->algo.data = p; p->mmvga = mmvga;
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c index ee114b4..cd4ad98 100644 --- a/drivers/i2c/busses/i2c-pxa.c +++ b/drivers/i2c/busses/i2c-pxa.c
@@ -926,7 +926,7 @@ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; } -static struct i2c_algorithm i2c_pxa_algorithm = { +static const struct i2c_algorithm i2c_pxa_algorithm = { .master_xfer = i2c_pxa_xfer, .functionality = i2c_pxa_functionality, };
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c index 5d2950e..9ebe429 100644 --- a/drivers/i2c/busses/i2c-s3c2410.c +++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -566,7 +566,7 @@ /* i2c bus registration info */ -static struct i2c_algorithm s3c24xx_i2c_algorithm = { +static const struct i2c_algorithm s3c24xx_i2c_algorithm = { .master_xfer = s3c24xx_i2c_xfer, .functionality = s3c24xx_i2c_func, };
diff --git a/drivers/i2c/busses/i2c-savage4.c b/drivers/i2c/busses/i2c-savage4.c index 0c85182..209f47e 100644 --- a/drivers/i2c/busses/i2c-savage4.c +++ b/drivers/i2c/busses/i2c-savage4.c
@@ -140,7 +140,6 @@ .getsda = bit_savi2c_getsda, .getscl = bit_savi2c_getscl, .udelay = CYCLE_DELAY, - .mdelay = CYCLE_DELAY, .timeout = TIMEOUT };
diff --git a/drivers/i2c/busses/i2c-sibyte.c b/drivers/i2c/busses/i2c-sibyte.c index fa503ed..8f2b1f0 100644 --- a/drivers/i2c/busses/i2c-sibyte.c +++ b/drivers/i2c/busses/i2c-sibyte.c
@@ -1,6 +1,7 @@ /* * Copyright (C) 2004 Steven J. Hill * Copyright (C) 2001,2002,2003 Broadcom Corporation + * Copyright (C) 1995-2000 Simon G. Vogl * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -17,11 +18,162 @@ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#include <linux/kernel.h> #include <linux/module.h> -#include <linux/i2c-algo-sibyte.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <asm/io.h> #include <asm/sibyte/sb1250_regs.h> #include <asm/sibyte/sb1250_smbus.h> + +struct i2c_algo_sibyte_data { + void *data; /* private data */ + int bus; /* which bus */ + void *reg_base; /* CSR base */ +}; + +/* ----- global defines ----------------------------------------------- */ +#define SMB_CSR(a,r) ((long)(a->reg_base + r)) + +/* ----- global variables --------------------------------------------- */ + +/* module parameters: + */ +static int bit_scan; /* have a look at what's hanging 'round */ +module_param(bit_scan, int, 0); +MODULE_PARM_DESC(bit_scan, "Scan for active chips on the bus"); + + +static int smbus_xfer(struct i2c_adapter *i2c_adap, u16 addr, + unsigned short flags, char read_write, + u8 command, int size, union i2c_smbus_data * data) +{ + struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data; + int data_bytes = 0; + int error; + + while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY) + ; + + switch (size) { + case I2C_SMBUS_QUICK: + csr_out32((V_SMB_ADDR(addr) | + (read_write == I2C_SMBUS_READ ? M_SMB_QDATA : 0) | + V_SMB_TT_QUICKCMD), SMB_CSR(adap, R_SMB_START)); + break; + case I2C_SMBUS_BYTE: + if (read_write == I2C_SMBUS_READ) { + csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_RD1BYTE), + SMB_CSR(adap, R_SMB_START)); + data_bytes = 1; + } else { + csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD)); + csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR1BYTE), + SMB_CSR(adap, R_SMB_START)); + } + break; + case I2C_SMBUS_BYTE_DATA: + csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD)); + if (read_write == I2C_SMBUS_READ) { + csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_CMD_RD1BYTE), + SMB_CSR(adap, R_SMB_START)); + data_bytes = 1; + } else { + csr_out32(V_SMB_LB(data->byte), + SMB_CSR(adap, R_SMB_DATA)); + csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR2BYTE), + SMB_CSR(adap, R_SMB_START)); + } + break; + case I2C_SMBUS_WORD_DATA: + csr_out32(V_SMB_CMD(command), SMB_CSR(adap, R_SMB_CMD)); + if (read_write == I2C_SMBUS_READ) { + csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_CMD_RD2BYTE), + SMB_CSR(adap, R_SMB_START)); + data_bytes = 2; + } else { + csr_out32(V_SMB_LB(data->word & 0xff), + SMB_CSR(adap, R_SMB_DATA)); + csr_out32(V_SMB_MB(data->word >> 8), + SMB_CSR(adap, R_SMB_DATA)); + csr_out32((V_SMB_ADDR(addr) | V_SMB_TT_WR2BYTE), + SMB_CSR(adap, R_SMB_START)); + } + break; + default: + return -1; /* XXXKW better error code? */ + } + + while (csr_in32(SMB_CSR(adap, R_SMB_STATUS)) & M_SMB_BUSY) + ; + + error = csr_in32(SMB_CSR(adap, R_SMB_STATUS)); + if (error & M_SMB_ERROR) { + /* Clear error bit by writing a 1 */ + csr_out32(M_SMB_ERROR, SMB_CSR(adap, R_SMB_STATUS)); + return -1; /* XXXKW better error code? */ + } + + if (data_bytes == 1) + data->byte = csr_in32(SMB_CSR(adap, R_SMB_DATA)) & 0xff; + if (data_bytes == 2) + data->word = csr_in32(SMB_CSR(adap, R_SMB_DATA)) & 0xffff; + + return 0; +} + +static u32 bit_func(struct i2c_adapter *adap) +{ + return (I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | + I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA); +} + + +/* -----exported algorithm data: ------------------------------------- */ + +static const struct i2c_algorithm i2c_sibyte_algo = { + .smbus_xfer = smbus_xfer, + .functionality = bit_func, +}; + +/* + * registering functions to load algorithms at runtime + */ +int i2c_sibyte_add_bus(struct i2c_adapter *i2c_adap, int speed) +{ + int i; + struct i2c_algo_sibyte_data *adap = i2c_adap->algo_data; + + /* register new adapter to i2c module... */ + i2c_adap->algo = &i2c_sibyte_algo; + + /* Set the frequency to 100 kHz */ + csr_out32(speed, SMB_CSR(adap,R_SMB_FREQ)); + csr_out32(0, SMB_CSR(adap,R_SMB_CONTROL)); + + /* scan bus */ + if (bit_scan) { + union i2c_smbus_data data; + int rc; + printk(KERN_INFO " i2c-algo-sibyte.o: scanning bus %s.\n", + i2c_adap->name); + for (i = 0x00; i < 0x7f; i++) { + /* XXXKW is this a realistic probe? */ + rc = smbus_xfer(i2c_adap, i, 0, I2C_SMBUS_READ, 0, + I2C_SMBUS_BYTE_DATA, &data); + if (!rc) { + printk("(%02x)",i); + } else + printk("."); + } + printk("\n"); + } + + return i2c_add_adapter(i2c_adap); +} + + static struct i2c_algo_sibyte_data sibyte_board_data[2] = { { NULL, 0, (void *) (CKSEG1+A_SMB_BASE(0)) }, { NULL, 1, (void *) (CKSEG1+A_SMB_BASE(1)) } @@ -58,13 +210,13 @@ static void __exit i2c_sibyte_exit(void) { - i2c_sibyte_del_bus(&sibyte_board_adapter[0]); - i2c_sibyte_del_bus(&sibyte_board_adapter[1]); + i2c_del_bus(&sibyte_board_adapter[0]); + i2c_del_bus(&sibyte_board_adapter[1]); } module_init(i2c_sibyte_init); module_exit(i2c_sibyte_exit); -MODULE_AUTHOR("Kip Walker <kwalker@broadcom.com>, Steven J. Hill <sjhill@realitydiluted.com>"); +MODULE_AUTHOR("Kip Walker (Broadcom Corp.), Steven J. Hill <sjhill@realitydiluted.com>"); MODULE_DESCRIPTION("SMBus adapter routines for SiByte boards"); MODULE_LICENSE("GPL");
diff --git a/drivers/i2c/busses/i2c-sis5595.c b/drivers/i2c/busses/i2c-sis5595.c index b57ab74d..38bbfd8 100644 --- a/drivers/i2c/busses/i2c-sis5595.c +++ b/drivers/i2c/busses/i2c-sis5595.c
@@ -358,7 +358,7 @@ I2C_FUNC_SMBUS_PROC_CALL; } -static struct i2c_algorithm smbus_algorithm = { +static const struct i2c_algorithm smbus_algorithm = { .smbus_xfer = sis5595_access, .functionality = sis5595_func, };
diff --git a/drivers/i2c/busses/i2c-sis630.c b/drivers/i2c/busses/i2c-sis630.c index acb75e2..dec0baf 100644 --- a/drivers/i2c/busses/i2c-sis630.c +++ b/drivers/i2c/busses/i2c-sis630.c
@@ -450,7 +450,7 @@ } -static struct i2c_algorithm smbus_algorithm = { +static const struct i2c_algorithm smbus_algorithm = { .smbus_xfer = sis630_access, .functionality = sis630_func, };
diff --git a/drivers/i2c/busses/i2c-sis96x.c b/drivers/i2c/busses/i2c-sis96x.c index 1a73c05..7fd07fb 100644 --- a/drivers/i2c/busses/i2c-sis96x.c +++ b/drivers/i2c/busses/i2c-sis96x.c
@@ -242,7 +242,7 @@ I2C_FUNC_SMBUS_PROC_CALL; } -static struct i2c_algorithm smbus_algorithm = { +static const struct i2c_algorithm smbus_algorithm = { .smbus_xfer = sis96x_access, .functionality = sis96x_func, };
diff --git a/drivers/i2c/busses/i2c-stub.c b/drivers/i2c/busses/i2c-stub.c index 73f481e..a54adc5 100644 --- a/drivers/i2c/busses/i2c-stub.c +++ b/drivers/i2c/busses/i2c-stub.c
@@ -27,6 +27,10 @@ #include <linux/errno.h> #include <linux/i2c.h> +static unsigned short chip_addr; +module_param(chip_addr, ushort, S_IRUGO); +MODULE_PARM_DESC(chip_addr, "Chip address (between 0x03 and 0x77)\n"); + static u8 stub_pointer; static u8 stub_bytes[256]; static u16 stub_words[256]; @@ -37,6 +41,9 @@ { s32 ret; + if (addr != chip_addr) + return -ENODEV; + switch (size) { case I2C_SMBUS_QUICK: @@ -108,7 +115,7 @@ I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA; } -static struct i2c_algorithm smbus_algorithm = { +static const struct i2c_algorithm smbus_algorithm = { .functionality = stub_func, .smbus_xfer = stub_xfer, }; @@ -122,7 +129,17 @@ static int __init i2c_stub_init(void) { - printk(KERN_INFO "i2c-stub loaded\n"); + if (!chip_addr) { + printk(KERN_ERR "i2c-stub: Please specify a chip address\n"); + return -ENODEV; + } + if (chip_addr < 0x03 || chip_addr > 0x77) { + printk(KERN_ERR "i2c-stub: Invalid chip address 0x%02x\n", + chip_addr); + return -EINVAL; + } + + printk(KERN_INFO "i2c-stub: Virtual chip at 0x%02x\n", chip_addr); return i2c_add_adapter(&stub_adapter); }
diff --git a/drivers/i2c/busses/i2c-via.c b/drivers/i2c/busses/i2c-via.c index 484bbac..910e200 100644 --- a/drivers/i2c/busses/i2c-via.c +++ b/drivers/i2c/busses/i2c-via.c
@@ -81,7 +81,6 @@ .getsda = bit_via_getsda, .getscl = bit_via_getscl, .udelay = 5, - .mdelay = 5, .timeout = HZ };
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c index 47e52bf..efc6bbf 100644 --- a/drivers/i2c/busses/i2c-viapro.c +++ b/drivers/i2c/busses/i2c-viapro.c
@@ -34,6 +34,8 @@ VT8233A 0x3147 yes? VT8235 0x3177 yes VT8237R 0x3227 yes + VT8237A 0x3337 yes + VT8251 0x3287 yes Note: we assume there can only be one device, with one SMBus interface. */ @@ -297,7 +299,7 @@ return func; } -static struct i2c_algorithm smbus_algorithm = { +static const struct i2c_algorithm smbus_algorithm = { .smbus_xfer = vt596_access, .functionality = vt596_func, }; @@ -381,7 +383,9 @@ dev_dbg(&pdev->dev, "VT596_smba = 0x%X\n", vt596_smba); switch (pdev->device) { + case PCI_DEVICE_ID_VIA_8251: case PCI_DEVICE_ID_VIA_8237: + case PCI_DEVICE_ID_VIA_8237A: case PCI_DEVICE_ID_VIA_8235: case PCI_DEVICE_ID_VIA_8233A: case PCI_DEVICE_ID_VIA_8233_0: @@ -432,8 +436,12 @@ .driver_data = SMBBA3 }, { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237), .driver_data = SMBBA3 }, + { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A), + .driver_data = SMBBA3 }, { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4), .driver_data = SMBBA1 }, + { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8251), + .driver_data = SMBBA3 }, { 0, } };
diff --git a/drivers/i2c/busses/i2c-voodoo3.c b/drivers/i2c/busses/i2c-voodoo3.c index b675773..6c8d251 100644 --- a/drivers/i2c/busses/i2c-voodoo3.c +++ b/drivers/i2c/busses/i2c-voodoo3.c
@@ -160,7 +160,6 @@ .getsda = bit_vooi2c_getsda, .getscl = bit_vooi2c_getscl, .udelay = CYCLE_DELAY, - .mdelay = CYCLE_DELAY, .timeout = TIMEOUT }; @@ -177,7 +176,6 @@ .getsda = bit_vooddc_getsda, .getscl = bit_vooddc_getscl, .udelay = CYCLE_DELAY, - .mdelay = CYCLE_DELAY, .timeout = TIMEOUT };
diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c index eae9e81..32aab0d 100644 --- a/drivers/i2c/busses/scx200_acb.c +++ b/drivers/i2c/busses/scx200_acb.c
@@ -383,7 +383,7 @@ } /* For now, we only handle combined mode (smbus) */ -static struct i2c_algorithm scx200_acb_algorithm = { +static const struct i2c_algorithm scx200_acb_algorithm = { .smbus_xfer = scx200_acb_smbus_xfer, .functionality = scx200_acb_func, };
diff --git a/drivers/i2c/busses/scx200_i2c.c b/drivers/i2c/busses/scx200_i2c.c index cb3ef5a..8b65a5c 100644 --- a/drivers/i2c/busses/scx200_i2c.c +++ b/drivers/i2c/busses/scx200_i2c.c
@@ -71,12 +71,12 @@ */ static struct i2c_algo_bit_data scx200_i2c_data = { - NULL, - scx200_i2c_setsda, - scx200_i2c_setscl, - scx200_i2c_getsda, - scx200_i2c_getscl, - 10, 10, 100, /* waits, timeout */ + .setsda = scx200_i2c_setsda, + .setscl = scx200_i2c_setscl, + .getsda = scx200_i2c_getsda, + .getscl = scx200_i2c_getscl, + .udelay = 10, + .timeout = 100, }; static struct i2c_adapter scx200_i2c_ops = {
diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c index 13c1082..cec3a0c 100644 --- a/drivers/i2c/chips/eeprom.c +++ b/drivers/i2c/chips/eeprom.c
@@ -209,10 +209,14 @@ } /* create the sysfs eeprom file */ - sysfs_create_bin_file(&new_client->dev.kobj, &eeprom_attr); + err = sysfs_create_bin_file(&new_client->dev.kobj, &eeprom_attr); + if (err) + goto exit_detach; return 0; +exit_detach: + i2c_detach_client(new_client); exit_kfree: kfree(data); exit: @@ -223,6 +227,8 @@ { int err; + sysfs_remove_bin_file(&client->dev.kobj, &eeprom_attr); + err = i2c_detach_client(client); if (err) return err;
diff --git a/drivers/i2c/chips/isp1301_omap.c b/drivers/i2c/chips/isp1301_omap.c index f92505b..182f049 100644 --- a/drivers/i2c/chips/isp1301_omap.c +++ b/drivers/i2c/chips/isp1301_omap.c
@@ -30,7 +30,7 @@ #include <linux/usb_ch9.h> #include <linux/usb_gadget.h> #include <linux/usb.h> -#include <linux/usb_otg.h> +#include <linux/usb/otg.h> #include <linux/i2c.h> #include <linux/workqueue.h>
diff --git a/drivers/i2c/chips/max6875.c b/drivers/i2c/chips/max6875.c index 88d2dde..76645c1 100644 --- a/drivers/i2c/chips/max6875.c +++ b/drivers/i2c/chips/max6875.c
@@ -199,8 +199,7 @@ mutex_init(&data->update_lock); /* Init fake client data */ - /* set the client data to the i2c_client so that it will get freed */ - i2c_set_clientdata(fake_client, fake_client); + i2c_set_clientdata(fake_client, NULL); fake_client->addr = address | 1; fake_client->adapter = adapter; fake_client->driver = &max6875_driver; @@ -214,13 +213,17 @@ goto exit_kfree2; if ((err = i2c_attach_client(fake_client)) != 0) - goto exit_detach; + goto exit_detach1; - sysfs_create_bin_file(&real_client->dev.kobj, &user_eeprom_attr); + err = sysfs_create_bin_file(&real_client->dev.kobj, &user_eeprom_attr); + if (err) + goto exit_detach2; return 0; -exit_detach: +exit_detach2: + i2c_detach_client(fake_client); +exit_detach1: i2c_detach_client(real_client); exit_kfree2: kfree(fake_client); @@ -229,14 +232,24 @@ return err; } +/* Will be called for both the real client and the fake client */ static int max6875_detach_client(struct i2c_client *client) { int err; + struct max6875_data *data = i2c_get_clientdata(client); + + /* data is NULL for the fake client */ + if (data) + sysfs_remove_bin_file(&client->dev.kobj, &user_eeprom_attr); err = i2c_detach_client(client); if (err) return err; - kfree(i2c_get_clientdata(client)); + + if (data) /* real client */ + kfree(data); + else /* fake client */ + kfree(client); return 0; }
diff --git a/drivers/i2c/chips/pca9539.c b/drivers/i2c/chips/pca9539.c index cb22280..f43c4e7 100644 --- a/drivers/i2c/chips/pca9539.c +++ b/drivers/i2c/chips/pca9539.c
@@ -148,11 +148,16 @@ if ((err = i2c_attach_client(new_client))) goto exit_kfree; - /* Register sysfs hooks (don't care about failure) */ - sysfs_create_group(&new_client->dev.kobj, &pca9539_defattr_group); + /* Register sysfs hooks */ + err = sysfs_create_group(&new_client->dev.kobj, + &pca9539_defattr_group); + if (err) + goto exit_detach; return 0; +exit_detach: + i2c_detach_client(new_client); exit_kfree: kfree(data); exit: @@ -163,6 +168,8 @@ { int err; + sysfs_remove_group(&client->dev.kobj, &pca9539_defattr_group); + if ((err = i2c_detach_client(client))) return err;
diff --git a/drivers/i2c/chips/pcf8574.c b/drivers/i2c/chips/pcf8574.c index c3e6449..32b2542 100644 --- a/drivers/i2c/chips/pcf8574.c +++ b/drivers/i2c/chips/pcf8574.c
@@ -105,6 +105,16 @@ static DEVICE_ATTR(write, S_IWUSR | S_IRUGO, show_write, set_write); +static struct attribute *pcf8574_attributes[] = { + &dev_attr_read.attr, + &dev_attr_write.attr, + NULL +}; + +static const struct attribute_group pcf8574_attr_group = { + .attrs = pcf8574_attributes, +}; + /* * Real code */ @@ -166,13 +176,13 @@ pcf8574_init_client(new_client); /* Register sysfs hooks */ - device_create_file(&new_client->dev, &dev_attr_read); - device_create_file(&new_client->dev, &dev_attr_write); + err = sysfs_create_group(&new_client->dev.kobj, &pcf8574_attr_group); + if (err) + goto exit_detach; return 0; -/* OK, this is not exactly good programming practice, usually. But it is - very code-efficient in this case. */ - + exit_detach: + i2c_detach_client(new_client); exit_free: kfree(data); exit: @@ -183,6 +193,8 @@ { int err; + sysfs_remove_group(&client->dev.kobj, &pcf8574_attr_group); + if ((err = i2c_detach_client(client))) return err;
diff --git a/drivers/i2c/chips/pcf8591.c b/drivers/i2c/chips/pcf8591.c index 925a6b3..4dc3637 100644 --- a/drivers/i2c/chips/pcf8591.c +++ b/drivers/i2c/chips/pcf8591.c
@@ -158,6 +158,28 @@ static DEVICE_ATTR(out0_enable, S_IWUSR | S_IRUGO, show_out0_enable, set_out0_enable); +static struct attribute *pcf8591_attributes[] = { + &dev_attr_out0_enable.attr, + &dev_attr_out0_output.attr, + &dev_attr_in0_input.attr, + &dev_attr_in1_input.attr, + NULL +}; + +static const struct attribute_group pcf8591_attr_group = { + .attrs = pcf8591_attributes, +}; + +static struct attribute *pcf8591_attributes_opt[] = { + &dev_attr_in2_input.attr, + &dev_attr_in3_input.attr, + NULL +}; + +static const struct attribute_group pcf8591_attr_group_opt = { + .attrs = pcf8591_attributes_opt, +}; + /* * Real code */ @@ -211,24 +233,31 @@ pcf8591_init_client(new_client); /* Register sysfs hooks */ - device_create_file(&new_client->dev, &dev_attr_out0_enable); - device_create_file(&new_client->dev, &dev_attr_out0_output); - device_create_file(&new_client->dev, &dev_attr_in0_input); - device_create_file(&new_client->dev, &dev_attr_in1_input); + err = sysfs_create_group(&new_client->dev.kobj, &pcf8591_attr_group); + if (err) + goto exit_detach; /* Register input2 if not in "two differential inputs" mode */ - if (input_mode != 3 ) - device_create_file(&new_client->dev, &dev_attr_in2_input); - - /* Register input3 only in "four single ended inputs" mode */ - if (input_mode == 0) - device_create_file(&new_client->dev, &dev_attr_in3_input); - - return 0; - - /* OK, this is not exactly good programming practice, usually. But it is - very code-efficient in this case. */ + if (input_mode != 3) { + if ((err = device_create_file(&new_client->dev, + &dev_attr_in2_input))) + goto exit_sysfs_remove; + } + /* Register input3 only in "four single ended inputs" mode */ + if (input_mode == 0) { + if ((err = device_create_file(&new_client->dev, + &dev_attr_in3_input))) + goto exit_sysfs_remove; + } + + return 0; + +exit_sysfs_remove: + sysfs_remove_group(&new_client->dev.kobj, &pcf8591_attr_group_opt); + sysfs_remove_group(&new_client->dev.kobj, &pcf8591_attr_group); +exit_detach: + i2c_detach_client(new_client); exit_kfree: kfree(data); exit: @@ -239,6 +268,9 @@ { int err; + sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group_opt); + sysfs_remove_group(&client->dev.kobj, &pcf8591_attr_group); + if ((err = i2c_detach_client(client))) return err;
diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c index 0be6fd6..6a75782 100644 --- a/drivers/i2c/chips/tps65010.c +++ b/drivers/i2c/chips/tps65010.c
@@ -305,7 +305,7 @@ static int dbg_tps_open(struct inode *inode, struct file *file) { - return single_open(file, dbg_show, inode->u.generic_ip); + return single_open(file, dbg_show, inode->i_private); } static struct file_operations debug_fops = {
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 9cb277d..01233f0 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c
@@ -183,15 +183,21 @@ sprintf(adap->dev.bus_id, "i2c-%d", adap->nr); adap->dev.driver = &i2c_adapter_driver; adap->dev.release = &i2c_adapter_dev_release; - device_register(&adap->dev); - device_create_file(&adap->dev, &dev_attr_name); + res = device_register(&adap->dev); + if (res) + goto out_list; + res = device_create_file(&adap->dev, &dev_attr_name); + if (res) + goto out_unregister; /* Add this adapter to the i2c_adapter class */ memset(&adap->class_dev, 0x00, sizeof(struct class_device)); adap->class_dev.dev = &adap->dev; adap->class_dev.class = &i2c_adapter_class; strlcpy(adap->class_dev.class_id, adap->dev.bus_id, BUS_ID_SIZE); - class_device_register(&adap->class_dev); + res = class_device_register(&adap->class_dev); + if (res) + goto out_remove_name; dev_dbg(&adap->dev, "adapter [%s] registered\n", adap->name); @@ -206,6 +212,17 @@ out_unlock: mutex_unlock(&core_lists); return res; + +out_remove_name: + device_remove_file(&adap->dev, &dev_attr_name); +out_unregister: + init_completion(&adap->dev_released); /* Needed? */ + device_unregister(&adap->dev); + wait_for_completion(&adap->dev_released); +out_list: + list_del(&adap->list); + idr_remove(&i2c_adapter_idr, adap->nr); + goto out_unlock; } @@ -394,14 +411,14 @@ int i2c_attach_client(struct i2c_client *client) { struct i2c_adapter *adapter = client->adapter; + int res = 0; mutex_lock(&adapter->clist_lock); if (__i2c_check_addr(client->adapter, client->addr)) { - mutex_unlock(&adapter->clist_lock); - return -EBUSY; + res = -EBUSY; + goto out_unlock; } list_add_tail(&client->list,&adapter->clients); - mutex_unlock(&adapter->clist_lock); if (adapter->client_register) { if (adapter->client_register(client)) { @@ -422,10 +439,26 @@ "%d-%04x", i2c_adapter_id(adapter), client->addr); dev_dbg(&adapter->dev, "client [%s] registered with bus id %s\n", client->name, client->dev.bus_id); - device_register(&client->dev); - device_create_file(&client->dev, &dev_attr_client_name); - - return 0; + res = device_register(&client->dev); + if (res) + goto out_list; + res = device_create_file(&client->dev, &dev_attr_client_name); + if (res) + goto out_unregister; + +out_unlock: + mutex_unlock(&adapter->clist_lock); + return res; + +out_unregister: + init_completion(&client->released); /* Needed? */ + device_unregister(&client->dev); + wait_for_completion(&client->released); +out_list: + list_del(&client->list); + dev_err(&adapter->dev, "Failed to attach i2c client %s at 0x%02x " + "(%d)\n", client->name, client->addr, res); + goto out_unlock; } @@ -674,11 +707,16 @@ /* Finally call the custom detection function */ err = found_proc(adapter, addr, kind); - /* -ENODEV can be returned if there is a chip at the given address but it isn't supported by this chip driver. We catch it here as this isn't an error. */ - return (err == -ENODEV) ? 0 : err; + if (err == -ENODEV) + err = 0; + + if (err) + dev_warn(&adapter->dev, "Client creation failed at 0x%x (%d)\n", + addr, err); + return err; } int i2c_probe(struct i2c_adapter *adapter, @@ -868,7 +906,7 @@ I2C_SMBUS_READ,0,I2C_SMBUS_BYTE, &data)) return -1; else - return 0x0FF & data.byte; + return data.byte; } s32 i2c_smbus_write_byte(struct i2c_client *client, u8 value) @@ -884,7 +922,7 @@ I2C_SMBUS_READ,command, I2C_SMBUS_BYTE_DATA,&data)) return -1; else - return 0x0FF & data.byte; + return data.byte; } s32 i2c_smbus_write_byte_data(struct i2c_client *client, u8 command, u8 value) @@ -903,7 +941,7 @@ I2C_SMBUS_READ,command, I2C_SMBUS_WORD_DATA, &data)) return -1; else - return 0x0FFFF & data.word; + return data.word; } s32 i2c_smbus_write_word_data(struct i2c_client *client, u8 command, u16 value) @@ -1006,7 +1044,7 @@ else { msg[0].len=3; msgbuf0[1] = data->word & 0xff; - msgbuf0[2] = (data->word >> 8) & 0xff; + msgbuf0[2] = data->word >> 8; } break; case I2C_SMBUS_PROC_CALL: @@ -1015,7 +1053,7 @@ msg[0].len = 3; msg[1].len = 2; msgbuf0[1] = data->word & 0xff; - msgbuf0[2] = (data->word >> 8) & 0xff; + msgbuf0[2] = data->word >> 8; break; case I2C_SMBUS_BLOCK_DATA: if (read_write == I2C_SMBUS_READ) {
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c index 58ccddd..3f86903 100644 --- a/drivers/i2c/i2c-dev.c +++ b/drivers/i2c/i2c-dev.c
@@ -32,43 +32,35 @@ #include <linux/slab.h> #include <linux/smp_lock.h> #include <linux/init.h> +#include <linux/list.h> #include <linux/i2c.h> #include <linux/i2c-dev.h> -#include <linux/platform_device.h> #include <asm/uaccess.h> -static struct i2c_client i2cdev_client_template; +static struct i2c_driver i2cdev_driver; struct i2c_dev { - int minor; + struct list_head list; struct i2c_adapter *adap; struct class_device *class_dev; }; -#define to_i2c_dev(d) container_of(d, struct i2c_dev, class_dev) #define I2C_MINORS 256 -static struct i2c_dev *i2c_dev_array[I2C_MINORS]; -static DEFINE_SPINLOCK(i2c_dev_array_lock); +static LIST_HEAD(i2c_dev_list); +static DEFINE_SPINLOCK(i2c_dev_list_lock); static struct i2c_dev *i2c_dev_get_by_minor(unsigned index) { struct i2c_dev *i2c_dev; - spin_lock(&i2c_dev_array_lock); - i2c_dev = i2c_dev_array[index]; - spin_unlock(&i2c_dev_array_lock); - return i2c_dev; -} - -static struct i2c_dev *i2c_dev_get_by_adapter(struct i2c_adapter *adap) -{ - struct i2c_dev *i2c_dev = NULL; - - spin_lock(&i2c_dev_array_lock); - if ((i2c_dev_array[adap->nr]) && - (i2c_dev_array[adap->nr]->adap == adap)) - i2c_dev = i2c_dev_array[adap->nr]; - spin_unlock(&i2c_dev_array_lock); + spin_lock(&i2c_dev_list_lock); + list_for_each_entry(i2c_dev, &i2c_dev_list, list) { + if (i2c_dev->adap->nr == index) + goto found; + } + i2c_dev = NULL; +found: + spin_unlock(&i2c_dev_list_lock); return i2c_dev; } @@ -76,30 +68,28 @@ { struct i2c_dev *i2c_dev; + if (adap->nr >= I2C_MINORS) { + printk(KERN_ERR "i2c-dev: Out of device minors (%d)\n", + adap->nr); + return ERR_PTR(-ENODEV); + } + i2c_dev = kzalloc(sizeof(*i2c_dev), GFP_KERNEL); if (!i2c_dev) return ERR_PTR(-ENOMEM); + i2c_dev->adap = adap; - spin_lock(&i2c_dev_array_lock); - if (i2c_dev_array[adap->nr]) { - spin_unlock(&i2c_dev_array_lock); - dev_err(&adap->dev, "i2c-dev already has a device assigned to this adapter\n"); - goto error; - } - i2c_dev->minor = adap->nr; - i2c_dev_array[adap->nr] = i2c_dev; - spin_unlock(&i2c_dev_array_lock); + spin_lock(&i2c_dev_list_lock); + list_add_tail(&i2c_dev->list, &i2c_dev_list); + spin_unlock(&i2c_dev_list_lock); return i2c_dev; -error: - kfree(i2c_dev); - return ERR_PTR(-ENODEV); } static void return_i2c_dev(struct i2c_dev *i2c_dev) { - spin_lock(&i2c_dev_array_lock); - i2c_dev_array[i2c_dev->minor] = NULL; - spin_unlock(&i2c_dev_array_lock); + spin_lock(&i2c_dev_list_lock); + list_del(&i2c_dev->list); + spin_unlock(&i2c_dev_list_lock); } static ssize_t show_adapter_name(struct class_device *class_dev, char *buf) @@ -375,12 +365,13 @@ if (!adap) return -ENODEV; - client = kmalloc(sizeof(*client), GFP_KERNEL); + client = kzalloc(sizeof(*client), GFP_KERNEL); if (!client) { i2c_put_adapter(adap); return -ENOMEM; } - memcpy(client, &i2cdev_client_template, sizeof(*client)); + snprintf(client->name, I2C_NAME_SIZE, "i2c-dev %d", adap->nr); + client->driver = &i2cdev_driver; /* registered with adapter, passed as client to user */ client->adapter = adap; @@ -415,41 +406,47 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap) { struct i2c_dev *i2c_dev; - struct device *dev; + int res; i2c_dev = get_free_i2c_dev(adap); if (IS_ERR(i2c_dev)) return PTR_ERR(i2c_dev); - pr_debug("i2c-dev: adapter [%s] registered as minor %d\n", - adap->name, i2c_dev->minor); - /* register this i2c device with the driver core */ - i2c_dev->adap = adap; - dev = &adap->dev; i2c_dev->class_dev = class_device_create(i2c_dev_class, NULL, - MKDEV(I2C_MAJOR, i2c_dev->minor), - dev, "i2c-%d", i2c_dev->minor); - if (!i2c_dev->class_dev) + MKDEV(I2C_MAJOR, adap->nr), + &adap->dev, "i2c-%d", + adap->nr); + if (!i2c_dev->class_dev) { + res = -ENODEV; goto error; - class_device_create_file(i2c_dev->class_dev, &class_device_attr_name); + } + res = class_device_create_file(i2c_dev->class_dev, &class_device_attr_name); + if (res) + goto error_destroy; + + pr_debug("i2c-dev: adapter [%s] registered as minor %d\n", + adap->name, adap->nr); return 0; +error_destroy: + class_device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr)); error: return_i2c_dev(i2c_dev); kfree(i2c_dev); - return -ENODEV; + return res; } static int i2cdev_detach_adapter(struct i2c_adapter *adap) { struct i2c_dev *i2c_dev; - i2c_dev = i2c_dev_get_by_adapter(adap); - if (!i2c_dev) - return -ENODEV; + i2c_dev = i2c_dev_get_by_minor(adap->nr); + if (!i2c_dev) /* attach_adapter must have failed */ + return 0; + class_device_remove_file(i2c_dev->class_dev, &class_device_attr_name); return_i2c_dev(i2c_dev); - class_device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, i2c_dev->minor)); + class_device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr)); kfree(i2c_dev); pr_debug("i2c-dev: adapter [%s] unregistered\n", adap->name); @@ -471,12 +468,6 @@ .detach_client = i2cdev_detach_client, }; -static struct i2c_client i2cdev_client_template = { - .name = "I2C /dev entry", - .addr = -1, - .driver = &i2cdev_driver, -}; - static int __init i2c_dev_init(void) { int res;
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index defd4b4..9c8468d 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c
@@ -1207,7 +1207,7 @@ EXPORT_SYMBOL(system_bus_clock); -static int generic_ide_suspend(struct device *dev, pm_message_t state) +static int generic_ide_suspend(struct device *dev, pm_message_t mesg) { ide_drive_t *drive = dev->driver_data; struct request rq; @@ -1221,7 +1221,9 @@ rq.special = &args; rq.end_io_data = &rqpm; rqpm.pm_step = ide_pm_state_start_suspend; - rqpm.pm_state = state.event; + if (mesg.event == PM_EVENT_PRETHAW) + mesg.event = PM_EVENT_FREEZE; + rqpm.pm_state = mesg.event; return ide_do_drive_cmd(drive, &rq, ide_wait); }
diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c index 71f27e9..c7854ea 100644 --- a/drivers/ide/mips/au1xxx-ide.c +++ b/drivers/ide/mips/au1xxx-ide.c
@@ -476,13 +476,13 @@ return 0; } -static void auide_ddma_tx_callback(int irq, void *param, struct pt_regs *regs) +static void auide_ddma_tx_callback(int irq, void *param) { _auide_hwif *ahwif = (_auide_hwif*)param; ahwif->drive->waiting_for_dma = 0; } -static void auide_ddma_rx_callback(int irq, void *param, struct pt_regs *regs) +static void auide_ddma_rx_callback(int irq, void *param) { _auide_hwif *ahwif = (_auide_hwif*)param; ahwif->drive->waiting_for_dma = 0;
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c index 996c694..31ad79f 100644 --- a/drivers/ide/ppc/pmac.c +++ b/drivers/ide/ppc/pmac.c
@@ -1369,15 +1369,16 @@ } static int -pmac_ide_macio_suspend(struct macio_dev *mdev, pm_message_t state) +pmac_ide_macio_suspend(struct macio_dev *mdev, pm_message_t mesg) { ide_hwif_t *hwif = (ide_hwif_t *)dev_get_drvdata(&mdev->ofdev.dev); int rc = 0; - if (state.event != mdev->ofdev.dev.power.power_state.event && state.event >= PM_EVENT_SUSPEND) { + if (mesg.event != mdev->ofdev.dev.power.power_state.event + && mesg.event == PM_EVENT_SUSPEND) { rc = pmac_ide_do_suspend(hwif); if (rc == 0) - mdev->ofdev.dev.power.power_state = state; + mdev->ofdev.dev.power.power_state = mesg; } return rc; @@ -1473,15 +1474,16 @@ } static int -pmac_ide_pci_suspend(struct pci_dev *pdev, pm_message_t state) +pmac_ide_pci_suspend(struct pci_dev *pdev, pm_message_t mesg) { ide_hwif_t *hwif = (ide_hwif_t *)pci_get_drvdata(pdev); int rc = 0; - if (state.event != pdev->dev.power.power_state.event && state.event >= 2) { + if (mesg.event != pdev->dev.power.power_state.event + && mesg.event == PM_EVENT_SUSPEND) { rc = pmac_ide_do_suspend(hwif); if (rc == 0) - pdev->dev.power.power_state = state; + pdev->dev.power.power_state = mesg; } return rc;
diff --git a/drivers/ieee1394/pcilynx.c b/drivers/ieee1394/pcilynx.c index e6f4123..b4f146f2 100644 --- a/drivers/ieee1394/pcilynx.c +++ b/drivers/ieee1394/pcilynx.c
@@ -137,7 +137,6 @@ .getsda = bit_getsda, .getscl = bit_getscl, .udelay = 5, - .mdelay = 5, .timeout = 100, };
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 082f03c..493f4c6 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c
@@ -2987,10 +2987,7 @@ static void __exit ib_mad_cleanup_module(void) { ib_unregister_client(&mad_client); - - if (kmem_cache_destroy(ib_mad_cache)) { - printk(KERN_DEBUG PFX "Failed to destroy ib_mad cache\n"); - } + kmem_cache_destroy(ib_mad_cache); } module_init(ib_mad_init_module);
diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c index a5eb30a..c8a8af0 100644 --- a/drivers/infiniband/hw/ipath/ipath_fs.c +++ b/drivers/infiniband/hw/ipath/ipath_fs.c
@@ -61,10 +61,9 @@ inode->i_mode = mode; inode->i_uid = 0; inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; - inode->u.generic_ip = data; + inode->i_private = data; if ((mode & S_IFMT) == S_IFDIR) { inode->i_op = &simple_dir_inode_operations; inode->i_nlink++; @@ -119,7 +118,7 @@ u16 i; struct ipath_devdata *dd; - dd = file->f_dentry->d_inode->u.generic_ip; + dd = file->f_dentry->d_inode->i_private; for (i = 0; i < NUM_COUNTERS; i++) counters[i] = ipath_snap_cntr(dd, i); @@ -139,7 +138,7 @@ struct ipath_devdata *dd; u64 guid; - dd = file->f_dentry->d_inode->u.generic_ip; + dd = file->f_dentry->d_inode->i_private; guid = be64_to_cpu(dd->ipath_guid); @@ -178,7 +177,7 @@ u32 tmp, tmp2; struct ipath_devdata *dd; - dd = file->f_dentry->d_inode->u.generic_ip; + dd = file->f_dentry->d_inode->i_private; /* so we only initialize non-zero fields. */ memset(portinfo, 0, sizeof portinfo); @@ -325,7 +324,7 @@ goto bail; } - dd = file->f_dentry->d_inode->u.generic_ip; + dd = file->f_dentry->d_inode->i_private; if (ipath_eeprom_read(dd, pos, tmp, count)) { ipath_dev_err(dd, "failed to read from flash\n"); ret = -ENXIO; @@ -381,7 +380,7 @@ goto bail_tmp; } - dd = file->f_dentry->d_inode->u.generic_ip; + dd = file->f_dentry->d_inode->i_private; if (ipath_eeprom_write(dd, pos, tmp, count)) { ret = -ENXIO; ipath_dev_err(dd, "failed to write to flash\n");
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c index bf2455a..5c9b509 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6110.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -742,7 +742,6 @@ return 0; } -#define HT_CAPABILITY_ID 0x08 /* HT capabilities not defined in kernel */ #define HT_INTR_DISC_CONFIG 0x80 /* HT interrupt and discovery cap */ #define HT_INTR_REG_INDEX 2 /* intconfig requires indirect accesses */ @@ -973,7 +972,7 @@ * do this early, before we ever enable errors or hardware errors, * mostly to avoid causing the chip to enter freeze mode. */ - pos = pci_find_capability(pdev, HT_CAPABILITY_ID); + pos = pci_find_capability(pdev, PCI_CAP_ID_HT); if (!pos) { ipath_dev_err(dd, "Couldn't find HyperTransport " "capability; no interrupts\n"); @@ -996,7 +995,7 @@ else if (cap_type == HT_INTR_DISC_CONFIG) ihandler = set_int_handler(dd, pdev, pos); } while ((pos = pci_find_next_capability(pdev, pos, - HT_CAPABILITY_ID))); + PCI_CAP_ID_HT))); if (!ihandler) { ipath_dev_err(dd, "Couldn't find interrupt handler in "
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_fs.c b/drivers/infiniband/ulp/ipoib/ipoib_fs.c index 5dde380..f1cb836 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_fs.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_fs.c
@@ -141,7 +141,7 @@ return ret; seq = file->private_data; - seq->private = inode->u.generic_ip; + seq->private = inode->i_private; return 0; } @@ -247,7 +247,7 @@ return ret; seq = file->private_data; - seq->private = inode->u.generic_ip; + seq->private = inode->i_private; return 0; }
diff --git a/drivers/input/touchscreen/hp680_ts_input.c b/drivers/input/touchscreen/hp680_ts_input.c index fa97e0f..ee6c2f4 100644 --- a/drivers/input/touchscreen/hp680_ts_input.c +++ b/drivers/input/touchscreen/hp680_ts_input.c
@@ -15,7 +15,6 @@ #define HP680_TS_ABS_Y_MIN 80 #define HP680_TS_ABS_Y_MAX 910 -#define SCPCR 0xa4000116 #define PHDR 0xa400012e #define SCPDR 0xa4000136 @@ -77,19 +76,6 @@ static int __init hp680_ts_init(void) { - u8 scpdr; - u16 scpcr; - - scpdr = ctrl_inb(SCPDR); - scpdr |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y; - scpdr &= ~SCPDR_TS_SCAN_ENABLE; - ctrl_outb(scpdr, SCPDR); - - scpcr = ctrl_inw(SCPCR); - scpcr &= ~SCPCR_TS_MASK; - scpcr |= SCPCR_TS_ENABLE; - ctrl_outw(scpcr, SCPCR); - hp680_ts_dev = input_allocate_device(); if (!hp680_ts_dev) return -ENOMEM;
diff --git a/drivers/isdn/capi/capifs.c b/drivers/isdn/capi/capifs.c index 9ea6bd0..2dd1b57 100644 --- a/drivers/isdn/capi/capifs.c +++ b/drivers/isdn/capi/capifs.c
@@ -104,7 +104,6 @@ inode->i_ino = 1; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; inode->i_blocks = 0; - inode->i_blksize = 1024; inode->i_uid = inode->i_gid = 0; inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR; inode->i_op = &simple_dir_inode_operations; @@ -149,7 +148,6 @@ if (!inode) return; inode->i_ino = number+2; - inode->i_blksize = 1024; inode->i_uid = config.setuid ? config.uid : current->fsuid; inode->i_gid = config.setgid ? config.gid : current->fsgid; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c index 3845def..5cfbe6a 100644 --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c
@@ -192,7 +192,7 @@ return "bit stuffing error, timeout, or unknown USB error"; case -EILSEQ: return "CRC mismatch, timeout, or unknown USB error"; - case -ETIMEDOUT: + case -ETIME: return "timed out"; case -EPIPE: return "endpoint stalled";
diff --git a/drivers/isdn/hisax/hfc_usb.h b/drivers/isdn/hisax/hfc_usb.h index ec52c1a..6349367 100644 --- a/drivers/isdn/hisax/hfc_usb.h +++ b/drivers/isdn/hisax/hfc_usb.h
@@ -137,11 +137,11 @@ {-ENXIO, "URB already queued"}, {-EFBIG, "Too much ISO frames requested"}, {-ENOSR, "Buffer error (overrun)"}, - {-EPIPE, "Specified endpoint is stalled (device not responding)"}, + {-EPIPE, "Specified endpoint is stalled"}, {-EOVERFLOW, "Babble (bad cable?)"}, {-EPROTO, "Bit-stuff error (bad cable?)"}, - {-EILSEQ, "CRC/Timeout"}, - {-ETIMEDOUT, "NAK (device does not respond)"}, + {-EILSEQ, "CRC or missing token"}, + {-ETIME, "Device did not respond"}, {-ESHUTDOWN, "Device unplugged"}, {-1, NULL} };
diff --git a/drivers/media/dvb/cinergyT2/cinergyT2.c b/drivers/media/dvb/cinergyT2/cinergyT2.c index 001c71b..410fa6d 100644 --- a/drivers/media/dvb/cinergyT2/cinergyT2.c +++ b/drivers/media/dvb/cinergyT2/cinergyT2.c
@@ -981,7 +981,7 @@ if (cinergyt2->disconnect_pending || mutex_lock_interruptible(&cinergyt2->sem)) return -ERESTARTSYS; - if (state.event > PM_EVENT_ON) { + if (1) { struct cinergyt2 *cinergyt2 = usb_get_intfdata (intf); cinergyt2_suspend_rc(cinergyt2);
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-urb.c b/drivers/media/dvb/dvb-usb/dvb-usb-urb.c index 9002f35..88b2837 100644 --- a/drivers/media/dvb/dvb-usb/dvb-usb-urb.c +++ b/drivers/media/dvb/dvb-usb/dvb-usb-urb.c
@@ -80,7 +80,6 @@ switch (urb->status) { case 0: /* success */ - case -ETIMEDOUT: /* NAK */ break; case -ECONNRESET: /* kill */ case -ENOENT:
diff --git a/drivers/media/dvb/ttusb-dec/ttusb_dec.c b/drivers/media/dvb/ttusb-dec/ttusb_dec.c index 6c1cb77..c9d66354 100644 --- a/drivers/media/dvb/ttusb-dec/ttusb_dec.c +++ b/drivers/media/dvb/ttusb-dec/ttusb_dec.c
@@ -215,7 +215,7 @@ case -ECONNRESET: case -ENOENT: case -ESHUTDOWN: - case -ETIMEDOUT: + case -ETIME: /* this urb is dead, cleanup */ dprintk("%s:urb shutting down with status: %d\n", __FUNCTION__, urb->status);
diff --git a/drivers/media/video/bt8xx/bttv-i2c.c b/drivers/media/video/bt8xx/bttv-i2c.c index 4b562b3..0dfbcc8 100644 --- a/drivers/media/video/bt8xx/bttv-i2c.c +++ b/drivers/media/video/bt8xx/bttv-i2c.c
@@ -100,7 +100,6 @@ .getsda = bttv_bit_getsda, .getscl = bttv_bit_getscl, .udelay = 16, - .mdelay = 10, .timeout = 200, };
diff --git a/drivers/media/video/cx88/cx88-i2c.c b/drivers/media/video/cx88/cx88-i2c.c index 7066380..7bea347 100644 --- a/drivers/media/video/cx88/cx88-i2c.c +++ b/drivers/media/video/cx88/cx88-i2c.c
@@ -155,7 +155,6 @@ .getsda = cx8800_bit_getsda, .getscl = cx8800_bit_getscl, .udelay = 16, - .mdelay = 10, .timeout = 200, };
diff --git a/drivers/media/video/cx88/cx88-vp3054-i2c.c b/drivers/media/video/cx88/cx88-vp3054-i2c.c index 751a754..2b4f197 100644 --- a/drivers/media/video/cx88/cx88-vp3054-i2c.c +++ b/drivers/media/video/cx88/cx88-vp3054-i2c.c
@@ -100,7 +100,6 @@ .getsda = vp3054_bit_getsda, .getscl = vp3054_bit_getscl, .udelay = 16, - .mdelay = 10, .timeout = 200, };
diff --git a/drivers/media/video/ov511.c b/drivers/media/video/ov511.c index 1b07a61..5d8cd28 100644 --- a/drivers/media/video/ov511.c +++ b/drivers/media/video/ov511.c
@@ -301,10 +301,11 @@ static struct symbolic_list urb_errlist[] = { { -ENOSR, "Buffer error (overrun)" }, { -EPIPE, "Stalled (device not responding)" }, - { -EOVERFLOW, "Babble (bad cable?)" }, + { -EOVERFLOW, "Babble (device sends too much data)" }, { -EPROTO, "Bit-stuff error (bad cable?)" }, - { -EILSEQ, "CRC/Timeout" }, - { -ETIMEDOUT, "NAK (device does not respond)" }, + { -EILSEQ, "CRC/Timeout (bad cable?)" }, + { -ETIME, "Device does not respond to token" }, + { -ETIMEDOUT, "Device does not respond to command" }, { -1, NULL } };
diff --git a/drivers/media/video/pwc/pwc-if.c b/drivers/media/video/pwc/pwc-if.c index d470394..53c4b57 100644 --- a/drivers/media/video/pwc/pwc-if.c +++ b/drivers/media/video/pwc/pwc-if.c
@@ -711,7 +711,7 @@ case -EOVERFLOW: errmsg = "Babble (bad cable?)"; break; case -EPROTO: errmsg = "Bit-stuff error (bad cable?)"; break; case -EILSEQ: errmsg = "CRC/Timeout (could be anything)"; break; - case -ETIMEDOUT: errmsg = "NAK (device does not respond)"; break; + case -ETIME: errmsg = "Device does not respond"; break; } PWC_DEBUG_FLOW("pwc_isoc_handler() called with status %d [%s].\n", urb->status, errmsg); /* Give up after a number of contiguous errors on the USB bus.
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c index 88bf2af..edd7b83 100644 --- a/drivers/media/video/videodev.c +++ b/drivers/media/video/videodev.c
@@ -836,7 +836,7 @@ break; } - if (index<=0 || index >= vfd->tvnormsize) { + if (index < 0 || index >= vfd->tvnormsize) { ret=-EINVAL; break; }
diff --git a/drivers/media/video/w9968cf.c b/drivers/media/video/w9968cf.c index 20f211b..2912326 100644 --- a/drivers/media/video/w9968cf.c +++ b/drivers/media/video/w9968cf.c
@@ -586,15 +586,14 @@ { -EFBIG, "Too much ISO frames requested" }, { -ENOSR, "Buffer error (overrun)" }, { -EPIPE, "Specified endpoint is stalled (device not responding)"}, - { -EOVERFLOW, "Babble (bad cable?)" }, + { -EOVERFLOW, "Babble (too much data)" }, { -EPROTO, "Bit-stuff error (bad cable?)" }, { -EILSEQ, "CRC/Timeout" }, - { -ETIMEDOUT, "NAK (device does not respond)" }, + { -ETIME, "Device does not respond to token" }, + { -ETIMEDOUT, "Device does not respond to command" }, { -1, NULL } }; - - /**************************************************************************** * Memory management functions * ****************************************************************************/
diff --git a/drivers/media/video/zoran_card.c b/drivers/media/video/zoran_card.c index f2249ed..29f59c3 100644 --- a/drivers/media/video/zoran_card.c +++ b/drivers/media/video/zoran_card.c
@@ -820,7 +820,6 @@ .getsda = zoran_i2c_getsda, .getscl = zoran_i2c_getscl, .udelay = 10, - .mdelay = 0, .timeout = 100, };
diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c index 4a35caf..b99dc50 100644 --- a/drivers/misc/ibmasm/ibmasmfs.c +++ b/drivers/misc/ibmasm/ibmasmfs.c
@@ -147,7 +147,6 @@ if (ret) { ret->i_mode = mode; ret->i_uid = ret->i_gid = 0; - ret->i_blksize = PAGE_CACHE_SIZE; ret->i_blocks = 0; ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME; } @@ -175,7 +174,7 @@ } inode->i_fop = fops; - inode->u.generic_ip = data; + inode->i_private = data; d_add(dentry, inode); return dentry; @@ -244,7 +243,7 @@ { struct ibmasmfs_command_data *command_data; - if (!inode->u.generic_ip) + if (!inode->i_private) return -ENODEV; command_data = kmalloc(sizeof(struct ibmasmfs_command_data), GFP_KERNEL); @@ -252,7 +251,7 @@ return -ENOMEM; command_data->command = NULL; - command_data->sp = inode->u.generic_ip; + command_data->sp = inode->i_private; file->private_data = command_data; return 0; } @@ -351,10 +350,10 @@ struct ibmasmfs_event_data *event_data; struct service_processor *sp; - if (!inode->u.generic_ip) + if (!inode->i_private) return -ENODEV; - sp = inode->u.generic_ip; + sp = inode->i_private; event_data = kmalloc(sizeof(struct ibmasmfs_event_data), GFP_KERNEL); if (!event_data) @@ -439,14 +438,14 @@ { struct ibmasmfs_heartbeat_data *rhbeat; - if (!inode->u.generic_ip) + if (!inode->i_private) return -ENODEV; rhbeat = kmalloc(sizeof(struct ibmasmfs_heartbeat_data), GFP_KERNEL); if (!rhbeat) return -ENOMEM; - rhbeat->sp = (struct service_processor *)inode->u.generic_ip; + rhbeat->sp = inode->i_private; rhbeat->active = 0; ibmasm_init_reverse_heartbeat(rhbeat->sp, &rhbeat->heartbeat); file->private_data = rhbeat; @@ -508,7 +507,7 @@ static int remote_settings_file_open(struct inode *inode, struct file *file) { - file->private_data = inode->u.generic_ip; + file->private_data = inode->i_private; return 0; }
diff --git a/drivers/mmc/au1xmmc.c b/drivers/mmc/au1xmmc.c index fb60616..61268da 100644 --- a/drivers/mmc/au1xmmc.c +++ b/drivers/mmc/au1xmmc.c
@@ -731,7 +731,7 @@ } } -static void au1xmmc_dma_callback(int irq, void *dev_id, struct pt_regs *regs) +static void au1xmmc_dma_callback(int irq, void *dev_id) { struct au1xmmc_host *host = (struct au1xmmc_host *) dev_id;
diff --git a/drivers/net/3c509.c b/drivers/net/3c509.c index 59c3392..b936373 100644 --- a/drivers/net/3c509.c +++ b/drivers/net/3c509.c
@@ -225,6 +225,7 @@ { "TCM5095" }, { "" } }; +MODULE_DEVICE_TABLE(eisa, el3_eisa_ids); static int el3_eisa_probe (struct device *device);
diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c index af301f0..df42e28 100644 --- a/drivers/net/3c59x.c +++ b/drivers/net/3c59x.c
@@ -851,6 +851,7 @@ { "TCM5970", CH_3C597 }, { "" } }; +MODULE_DEVICE_TABLE(eisa, vortex_eisa_ids); static int vortex_eisa_probe(struct device *device); static int vortex_eisa_remove(struct device *device);
diff --git a/drivers/net/acenic.c b/drivers/net/acenic.c index a075246..71a4f60 100644 --- a/drivers/net/acenic.c +++ b/drivers/net/acenic.c
@@ -163,11 +163,7 @@ #define SET_NETDEV_DEV(net, pdev) do{} while(0) #endif -#if LINUX_VERSION_CODE >= 0x2051c #define ace_sync_irq(irq) synchronize_irq(irq) -#else -#define ace_sync_irq(irq) synchronize_irq() -#endif #ifndef offset_in_page #define offset_in_page(ptr) ((unsigned long)(ptr) & ~PAGE_MASK)
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c index 6a40707..3fb354d 100644 --- a/drivers/net/bonding/bond_3ad.c +++ b/drivers/net/bonding/bond_3ad.c
@@ -85,6 +85,7 @@ #define AD_LINK_SPEED_BITMASK_10MBPS 0x2 #define AD_LINK_SPEED_BITMASK_100MBPS 0x4 #define AD_LINK_SPEED_BITMASK_1000MBPS 0x8 +#define AD_LINK_SPEED_BITMASK_10000MBPS 0x10 //endalloun // compare MAC addresses @@ -99,7 +100,7 @@ static u8 __get_duplex(struct port *port); static inline void __initialize_port_locks(struct port *port); //conversions -static void __ntohs_lacpdu(struct lacpdu *lacpdu); +static void __htons_lacpdu(struct lacpdu *lacpdu); static u16 __ad_timer_to_ticks(u16 timer_type, u16 Par); @@ -330,7 +331,8 @@ * 0, * %AD_LINK_SPEED_BITMASK_10MBPS, * %AD_LINK_SPEED_BITMASK_100MBPS, - * %AD_LINK_SPEED_BITMASK_1000MBPS + * %AD_LINK_SPEED_BITMASK_1000MBPS, + * %AD_LINK_SPEED_BITMASK_10000MBPS */ static u16 __get_link_speed(struct port *port) { @@ -357,6 +359,10 @@ speed = AD_LINK_SPEED_BITMASK_1000MBPS; break; + case SPEED_10000: + speed = AD_LINK_SPEED_BITMASK_10000MBPS; + break; + default: speed = 0; // unknown speed value from ethtool. shouldn't happen break; @@ -414,23 +420,23 @@ //conversions /** - * __ntohs_lacpdu - convert the contents of a LACPDU to host byte order + * __htons_lacpdu - convert the contents of a LACPDU to network byte order * @lacpdu: the speicifed lacpdu * * For each multi-byte field in the lacpdu, convert its content */ -static void __ntohs_lacpdu(struct lacpdu *lacpdu) +static void __htons_lacpdu(struct lacpdu *lacpdu) { if (lacpdu) { - lacpdu->actor_system_priority = ntohs(lacpdu->actor_system_priority); - lacpdu->actor_key = ntohs(lacpdu->actor_key); - lacpdu->actor_port_priority = ntohs(lacpdu->actor_port_priority); - lacpdu->actor_port = ntohs(lacpdu->actor_port); - lacpdu->partner_system_priority = ntohs(lacpdu->partner_system_priority); - lacpdu->partner_key = ntohs(lacpdu->partner_key); - lacpdu->partner_port_priority = ntohs(lacpdu->partner_port_priority); - lacpdu->partner_port = ntohs(lacpdu->partner_port); - lacpdu->collector_max_delay = ntohs(lacpdu->collector_max_delay); + lacpdu->actor_system_priority = htons(lacpdu->actor_system_priority); + lacpdu->actor_key = htons(lacpdu->actor_key); + lacpdu->actor_port_priority = htons(lacpdu->actor_port_priority); + lacpdu->actor_port = htons(lacpdu->actor_port); + lacpdu->partner_system_priority = htons(lacpdu->partner_system_priority); + lacpdu->partner_key = htons(lacpdu->partner_key); + lacpdu->partner_port_priority = htons(lacpdu->partner_port_priority); + lacpdu->partner_port = htons(lacpdu->partner_port); + lacpdu->collector_max_delay = htons(lacpdu->collector_max_delay); } } @@ -490,11 +496,11 @@ // validate lacpdu and port if (lacpdu && port) { // record the new parameter values for the partner operational - port->partner_oper_port_number = lacpdu->actor_port; - port->partner_oper_port_priority = lacpdu->actor_port_priority; + port->partner_oper_port_number = ntohs(lacpdu->actor_port); + port->partner_oper_port_priority = ntohs(lacpdu->actor_port_priority); port->partner_oper_system = lacpdu->actor_system; - port->partner_oper_system_priority = lacpdu->actor_system_priority; - port->partner_oper_key = lacpdu->actor_key; + port->partner_oper_system_priority = ntohs(lacpdu->actor_system_priority); + port->partner_oper_key = ntohs(lacpdu->actor_key); // zero partener's lase states port->partner_oper_port_state = 0; port->partner_oper_port_state |= (lacpdu->actor_state & AD_STATE_LACP_ACTIVITY); @@ -561,11 +567,11 @@ // validate lacpdu and port if (lacpdu && port) { // check if any parameter is different - if ((lacpdu->actor_port != port->partner_oper_port_number) || - (lacpdu->actor_port_priority != port->partner_oper_port_priority) || + if ((ntohs(lacpdu->actor_port) != port->partner_oper_port_number) || + (ntohs(lacpdu->actor_port_priority) != port->partner_oper_port_priority) || MAC_ADDRESS_COMPARE(&(lacpdu->actor_system), &(port->partner_oper_system)) || - (lacpdu->actor_system_priority != port->partner_oper_system_priority) || - (lacpdu->actor_key != port->partner_oper_key) || + (ntohs(lacpdu->actor_system_priority) != port->partner_oper_system_priority) || + (ntohs(lacpdu->actor_key) != port->partner_oper_key) || ((lacpdu->actor_state & AD_STATE_AGGREGATION) != (port->partner_oper_port_state & AD_STATE_AGGREGATION)) ) { // update the state machine Selected variable @@ -628,11 +634,11 @@ // validate lacpdu and port if (lacpdu && port) { // check if all parameters are alike - if (((lacpdu->partner_port == port->actor_port_number) && - (lacpdu->partner_port_priority == port->actor_port_priority) && + if (((ntohs(lacpdu->partner_port) == port->actor_port_number) && + (ntohs(lacpdu->partner_port_priority) == port->actor_port_priority) && !MAC_ADDRESS_COMPARE(&(lacpdu->partner_system), &(port->actor_system)) && - (lacpdu->partner_system_priority == port->actor_system_priority) && - (lacpdu->partner_key == port->actor_oper_port_key) && + (ntohs(lacpdu->partner_system_priority) == port->actor_system_priority) && + (ntohs(lacpdu->partner_key) == port->actor_oper_port_key) && ((lacpdu->partner_state & AD_STATE_AGGREGATION) == (port->actor_oper_port_state & AD_STATE_AGGREGATION))) || // or this is individual link(aggregation == FALSE) ((lacpdu->actor_state & AD_STATE_AGGREGATION) == 0) @@ -662,11 +668,11 @@ // validate lacpdu and port if (lacpdu && port) { // check if any parameter is different - if ((lacpdu->partner_port != port->actor_port_number) || - (lacpdu->partner_port_priority != port->actor_port_priority) || + if ((ntohs(lacpdu->partner_port) != port->actor_port_number) || + (ntohs(lacpdu->partner_port_priority) != port->actor_port_priority) || MAC_ADDRESS_COMPARE(&(lacpdu->partner_system), &(port->actor_system)) || - (lacpdu->partner_system_priority != port->actor_system_priority) || - (lacpdu->partner_key != port->actor_oper_port_key) || + (ntohs(lacpdu->partner_system_priority) != port->actor_system_priority) || + (ntohs(lacpdu->partner_key) != port->actor_oper_port_key) || ((lacpdu->partner_state & AD_STATE_LACP_ACTIVITY) != (port->actor_oper_port_state & AD_STATE_LACP_ACTIVITY)) || ((lacpdu->partner_state & AD_STATE_LACP_TIMEOUT) != (port->actor_oper_port_state & AD_STATE_LACP_TIMEOUT)) || ((lacpdu->partner_state & AD_STATE_SYNCHRONIZATION) != (port->actor_oper_port_state & AD_STATE_SYNCHRONIZATION)) || @@ -775,6 +781,9 @@ case AD_LINK_SPEED_BITMASK_1000MBPS: bandwidth = aggregator->num_of_ports * 1000; break; + case AD_LINK_SPEED_BITMASK_10000MBPS: + bandwidth = aggregator->num_of_ports * 10000; + break; default: bandwidth=0; // to silent the compilor .... } @@ -847,7 +856,7 @@ */ /* Convert all non u8 parameters to Big Endian for transmit */ - __ntohs_lacpdu(lacpdu); + __htons_lacpdu(lacpdu); } ////////////////////////////////////////////////////////////////////////////////////// @@ -2171,7 +2180,6 @@ switch (lacpdu->subtype) { case AD_TYPE_LACPDU: - __ntohs_lacpdu(lacpdu); dprintk("Received LACPDU on port %d\n", port->actor_port_number); ad_rx_machine(lacpdu, port); break;
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 850aae2..0fb5f65 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c
@@ -96,6 +96,7 @@ static char *xmit_hash_policy = NULL; static int arp_interval = BOND_LINK_ARP_INTERV; static char *arp_ip_target[BOND_MAX_ARP_TARGETS] = { NULL, }; +static char *arp_validate = NULL; struct bond_params bonding_defaults; module_param(max_bonds, int, 0); @@ -127,6 +128,8 @@ MODULE_PARM_DESC(arp_interval, "arp interval in milliseconds"); module_param_array(arp_ip_target, charp, NULL, 0); MODULE_PARM_DESC(arp_ip_target, "arp targets in n.n.n.n form"); +module_param(arp_validate, charp, 0); +MODULE_PARM_DESC(arp_validate, "validate src/dst of ARP probes: none (default), active, backup or all"); /*----------------------------- Global variables ----------------------------*/ @@ -170,6 +173,14 @@ { NULL, -1}, }; +struct bond_parm_tbl arp_validate_tbl[] = { +{ "none", BOND_ARP_VALIDATE_NONE}, +{ "active", BOND_ARP_VALIDATE_ACTIVE}, +{ "backup", BOND_ARP_VALIDATE_BACKUP}, +{ "all", BOND_ARP_VALIDATE_ALL}, +{ NULL, -1}, +}; + /*-------------------------- Forward declarations ---------------------------*/ static void bond_send_gratuitous_arp(struct bonding *bond); @@ -638,6 +649,7 @@ case SPEED_10: case SPEED_100: case SPEED_1000: + case SPEED_10000: break; default: return -1; @@ -1210,10 +1222,14 @@ unsigned long features = BOND_INTERSECT_FEATURES; struct slave *slave; struct net_device *bond_dev = bond->dev; + unsigned short max_hard_header_len = ETH_HLEN; int i; - bond_for_each_slave(bond, slave, i) + bond_for_each_slave(bond, slave, i) { features &= (slave->dev->features & BOND_INTERSECT_FEATURES); + if (slave->dev->hard_header_len > max_hard_header_len) + max_hard_header_len = slave->dev->hard_header_len; + } if ((features & NETIF_F_SG) && !(features & NETIF_F_ALL_CSUM)) @@ -1231,6 +1247,7 @@ features |= (bond_dev->features & ~BOND_INTERSECT_FEATURES); bond_dev->features = features; + bond_dev->hard_header_len = max_hard_header_len; return 0; } @@ -1365,6 +1382,7 @@ } new_slave->dev = slave_dev; + slave_dev->priv_flags |= IFF_BONDING; if ((bond->params.mode == BOND_MODE_TLB) || (bond->params.mode == BOND_MODE_ALB)) { @@ -1417,6 +1435,8 @@ bond_compute_features(bond); + new_slave->last_arp_rx = jiffies; + if (bond->params.miimon && !bond->params.use_carrier) { link_reporting = bond_check_dev_link(bond, slave_dev, 1); @@ -1493,29 +1513,8 @@ switch (bond->params.mode) { case BOND_MODE_ACTIVEBACKUP: - /* if we're in active-backup mode, we need one and - * only one active interface. The backup interfaces - * will have their SLAVE_INACTIVE flag set because we - * need them to be drop all packets. Thus, since we - * guarantee that curr_active_slave always point to - * the last usable interface, we just have to verify - * this interface's flag. - */ - if (((!bond->curr_active_slave) || - (bond->curr_active_slave->dev->priv_flags & IFF_SLAVE_INACTIVE)) && - (new_slave->link != BOND_LINK_DOWN)) { - /* first slave or no active slave yet, and this link - is OK, so make this interface the active one */ - bond_change_active_slave(bond, new_slave); - printk(KERN_INFO DRV_NAME - ": %s: first active interface up!\n", - bond->dev->name); - netif_carrier_on(bond->dev); - - } else { - dprintk("This is just a backup slave\n"); - bond_set_slave_inactive_flags(new_slave); - } + bond_set_slave_inactive_flags(new_slave); + bond_select_active_slave(bond); break; case BOND_MODE_8023AD: /* in 802.3ad mode, the internal mechanism @@ -1778,7 +1777,8 @@ dev_set_mac_address(slave_dev, &addr); slave_dev->priv_flags &= ~(IFF_MASTER_8023AD | IFF_MASTER_ALB | - IFF_SLAVE_INACTIVE); + IFF_SLAVE_INACTIVE | IFF_BONDING | + IFF_SLAVE_NEEDARP); kfree(slave); @@ -2291,6 +2291,25 @@ return 0; } +static int bond_has_this_ip(struct bonding *bond, u32 ip) +{ + struct vlan_entry *vlan, *vlan_next; + + if (ip == bond->master_ip) + return 1; + + if (list_empty(&bond->vlan_list)) + return 0; + + list_for_each_entry_safe(vlan, vlan_next, &bond->vlan_list, + vlan_list) { + if (ip == vlan->vlan_ip) + return 1; + } + + return 0; +} + /* * We go to the (large) trouble of VLAN tagging ARP frames because * switches in VLAN mode (especially if ports are configured as @@ -2429,6 +2448,93 @@ } } +static void bond_validate_arp(struct bonding *bond, struct slave *slave, u32 sip, u32 tip) +{ + int i; + u32 *targets = bond->params.arp_targets; + + targets = bond->params.arp_targets; + for (i = 0; (i < BOND_MAX_ARP_TARGETS) && targets[i]; i++) { + dprintk("bva: sip %u.%u.%u.%u tip %u.%u.%u.%u t[%d] " + "%u.%u.%u.%u bhti(tip) %d\n", + NIPQUAD(sip), NIPQUAD(tip), i, NIPQUAD(targets[i]), + bond_has_this_ip(bond, tip)); + if (sip == targets[i]) { + if (bond_has_this_ip(bond, tip)) + slave->last_arp_rx = jiffies; + return; + } + } +} + +static int bond_arp_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) +{ + struct arphdr *arp; + struct slave *slave; + struct bonding *bond; + unsigned char *arp_ptr; + u32 sip, tip; + + if (!(dev->priv_flags & IFF_BONDING) || !(dev->flags & IFF_MASTER)) + goto out; + + bond = dev->priv; + read_lock(&bond->lock); + + dprintk("bond_arp_rcv: bond %s skb->dev %s orig_dev %s\n", + bond->dev->name, skb->dev ? skb->dev->name : "NULL", + orig_dev ? orig_dev->name : "NULL"); + + slave = bond_get_slave_by_dev(bond, orig_dev); + if (!slave || !slave_do_arp_validate(bond, slave)) + goto out_unlock; + + /* ARP header, plus 2 device addresses, plus 2 IP addresses. */ + if (!pskb_may_pull(skb, (sizeof(struct arphdr) + + (2 * dev->addr_len) + + (2 * sizeof(u32))))) + goto out_unlock; + + arp = skb->nh.arph; + if (arp->ar_hln != dev->addr_len || + skb->pkt_type == PACKET_OTHERHOST || + skb->pkt_type == PACKET_LOOPBACK || + arp->ar_hrd != htons(ARPHRD_ETHER) || + arp->ar_pro != htons(ETH_P_IP) || + arp->ar_pln != 4) + goto out_unlock; + + arp_ptr = (unsigned char *)(arp + 1); + arp_ptr += dev->addr_len; + memcpy(&sip, arp_ptr, 4); + arp_ptr += 4 + dev->addr_len; + memcpy(&tip, arp_ptr, 4); + + dprintk("bond_arp_rcv: %s %s/%d av %d sv %d sip %u.%u.%u.%u" + " tip %u.%u.%u.%u\n", bond->dev->name, slave->dev->name, + slave->state, bond->params.arp_validate, + slave_do_arp_validate(bond, slave), NIPQUAD(sip), NIPQUAD(tip)); + + /* + * Backup slaves won't see the ARP reply, but do come through + * here for each ARP probe (so we swap the sip/tip to validate + * the probe). In a "redundant switch, common router" type of + * configuration, the ARP probe will (hopefully) travel from + * the active, through one switch, the router, then the other + * switch before reaching the backup. + */ + if (slave->state == BOND_STATE_ACTIVE) + bond_validate_arp(bond, slave, sip, tip); + else + bond_validate_arp(bond, slave, tip, sip); + +out_unlock: + read_unlock(&bond->lock); +out: + dev_kfree_skb(skb); + return NET_RX_SUCCESS; +} + /* * this function is called regularly to monitor each slave's link * ensuring that traffic is being sent and received when arp monitoring @@ -2593,7 +2699,8 @@ */ bond_for_each_slave(bond, slave, i) { if (slave->link != BOND_LINK_UP) { - if ((jiffies - slave->dev->last_rx) <= delta_in_ticks) { + if ((jiffies - slave_last_rx(bond, slave)) <= + delta_in_ticks) { slave->link = BOND_LINK_UP; @@ -2638,7 +2745,7 @@ if ((slave != bond->curr_active_slave) && (!bond->current_arp_slave) && - (((jiffies - slave->dev->last_rx) >= 3*delta_in_ticks) && + (((jiffies - slave_last_rx(bond, slave)) >= 3*delta_in_ticks) && bond_has_ip(bond))) { /* a backup slave has gone down; three times * the delta allows the current slave to be @@ -2685,7 +2792,7 @@ * if it is up and needs to take over as the curr_active_slave */ if ((((jiffies - slave->dev->trans_start) >= (2*delta_in_ticks)) || - (((jiffies - slave->dev->last_rx) >= (2*delta_in_ticks)) && + (((jiffies - slave_last_rx(bond, slave)) >= (2*delta_in_ticks)) && bond_has_ip(bond))) && ((jiffies - slave->jiffies) >= 2*delta_in_ticks)) { @@ -2950,7 +3057,7 @@ seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name); seq_printf(seq, "MII Status: %s\n", (slave->link == BOND_LINK_UP) ? "up" : "down"); - seq_printf(seq, "Link Failure Count: %d\n", + seq_printf(seq, "Link Failure Count: %u\n", slave->link_failure_count); seq_printf(seq, @@ -3210,6 +3317,9 @@ (event_dev ? event_dev->name : "None"), event); + if (!(event_dev->priv_flags & IFF_BONDING)) + return NOTIFY_DONE; + if (event_dev->flags & IFF_MASTER) { dprintk("IFF_MASTER\n"); return bond_master_netdev_event(event, event_dev); @@ -3305,6 +3415,21 @@ dev_remove_pack(&(BOND_AD_INFO(bond).ad_pkt_type)); } +void bond_register_arp(struct bonding *bond) +{ + struct packet_type *pt = &bond->arp_mon_pt; + + pt->type = htons(ETH_P_ARP); + pt->dev = NULL; /*bond->dev;XXX*/ + pt->func = bond_arp_rcv; + dev_add_pack(pt); +} + +void bond_unregister_arp(struct bonding *bond) +{ + dev_remove_pack(&bond->arp_mon_pt); +} + /*---------------------------- Hashing Policies -----------------------------*/ /* @@ -3391,6 +3516,9 @@ } else { arp_timer->function = (void *)&bond_loadbalance_arp_mon; } + if (bond->params.arp_validate) + bond_register_arp(bond); + add_timer(arp_timer); } @@ -3418,9 +3546,11 @@ bond_unregister_lacpdu(bond); } + if (bond->params.arp_validate) + bond_unregister_arp(bond); + write_lock_bh(&bond->lock); - bond_mc_list_destroy(bond); /* signal timers not to re-arm */ bond->kill_timers = 1; @@ -3451,8 +3581,6 @@ break; } - /* Release the bonded slaves */ - bond_release_all(bond_dev); if ((bond->params.mode == BOND_MODE_TLB) || (bond->params.mode == BOND_MODE_ALB)) { @@ -4179,6 +4307,7 @@ /* Initialize the device options */ bond_dev->tx_queue_len = 0; bond_dev->flags |= IFF_MASTER|IFF_MULTICAST; + bond_dev->priv_flags |= IFF_BONDING; /* At first, we block adding VLANs. That's the only way to * prevent problems that occur when adding VLANs over an @@ -4237,6 +4366,9 @@ list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list) { struct net_device *bond_dev = bond->dev; + bond_mc_list_destroy(bond); + /* Release the bonded slaves */ + bond_release_all(bond_dev); unregister_netdevice(bond_dev); bond_deinit(bond_dev); } @@ -4270,6 +4402,8 @@ static int bond_check_params(struct bond_params *params) { + int arp_validate_value; + /* * Convert string parameters. */ @@ -4473,6 +4607,29 @@ arp_interval = 0; } + if (arp_validate) { + if (bond_mode != BOND_MODE_ACTIVEBACKUP) { + printk(KERN_ERR DRV_NAME + ": arp_validate only supported in active-backup mode\n"); + return -EINVAL; + } + if (!arp_interval) { + printk(KERN_ERR DRV_NAME + ": arp_validate requires arp_interval\n"); + return -EINVAL; + } + + arp_validate_value = bond_parse_parm(arp_validate, + arp_validate_tbl); + if (arp_validate_value == -1) { + printk(KERN_ERR DRV_NAME + ": Error: invalid arp_validate \"%s\"\n", + arp_validate == NULL ? "NULL" : arp_validate); + return -EINVAL; + } + } else + arp_validate_value = 0; + if (miimon) { printk(KERN_INFO DRV_NAME ": MII link monitoring set to %d ms\n", @@ -4481,8 +4638,10 @@ int i; printk(KERN_INFO DRV_NAME - ": ARP monitoring set to %d ms with %d target(s):", - arp_interval, arp_ip_count); + ": ARP monitoring set to %d ms, validate %s, with %d target(s):", + arp_interval, + arp_validate_tbl[arp_validate_value].modename, + arp_ip_count); for (i = 0; i < arp_ip_count; i++) printk (" %s", arp_ip_target[i]); @@ -4516,6 +4675,7 @@ params->xmit_policy = xmit_hashtype; params->miimon = miimon; params->arp_interval = arp_interval; + params->arp_validate = arp_validate_value; params->updelay = updelay; params->downdelay = downdelay; params->use_carrier = use_carrier;
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index cfe4dc3..ced9ed8 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c
@@ -51,6 +51,7 @@ extern struct bond_parm_tbl bond_mode_tbl[]; extern struct bond_parm_tbl bond_lacp_tbl[]; extern struct bond_parm_tbl xmit_hashtype_tbl[]; +extern struct bond_parm_tbl arp_validate_tbl[]; static int expected_refcount = -1; static struct class *netdev_class; @@ -503,6 +504,53 @@ static CLASS_DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, bonding_show_xmit_hash, bonding_store_xmit_hash); /* + * Show and set arp_validate. + */ +static ssize_t bonding_show_arp_validate(struct class_device *cd, char *buf) +{ + struct bonding *bond = to_bond(cd); + + return sprintf(buf, "%s %d\n", + arp_validate_tbl[bond->params.arp_validate].modename, + bond->params.arp_validate) + 1; +} + +static ssize_t bonding_store_arp_validate(struct class_device *cd, const char *buf, size_t count) +{ + int new_value; + struct bonding *bond = to_bond(cd); + + new_value = bond_parse_parm((char *)buf, arp_validate_tbl); + if (new_value < 0) { + printk(KERN_ERR DRV_NAME + ": %s: Ignoring invalid arp_validate value %s\n", + bond->dev->name, buf); + return -EINVAL; + } + if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { + printk(KERN_ERR DRV_NAME + ": %s: arp_validate only supported in active-backup mode.\n", + bond->dev->name); + return -EINVAL; + } + printk(KERN_INFO DRV_NAME ": %s: setting arp_validate to %s (%d).\n", + bond->dev->name, arp_validate_tbl[new_value].modename, + new_value); + + if (!bond->params.arp_validate && new_value) { + bond_register_arp(bond); + } else if (bond->params.arp_validate && !new_value) { + bond_unregister_arp(bond); + } + + bond->params.arp_validate = new_value; + + return count; +} + +static CLASS_DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, bonding_store_arp_validate); + +/* * Show and set the arp timer interval. There are two tricky bits * here. First, if ARP monitoring is activated, then we must disable * MII monitoring. Second, if the ARP timer isn't running, we must @@ -914,6 +962,11 @@ "ARP monitoring. Disabling ARP monitoring...\n", bond->dev->name); bond->params.arp_interval = 0; + if (bond->params.arp_validate) { + bond_unregister_arp(bond); + bond->params.arp_validate = + BOND_ARP_VALIDATE_NONE; + } /* Kill ARP timer, else it brings bond's link down */ if (bond->mii_timer.function) { printk(KERN_INFO DRV_NAME @@ -1093,7 +1146,7 @@ strlen(slave->dev->name)) == 0) { old_active = bond->curr_active_slave; new_active = slave; - if (new_active && (new_active == old_active)) { + if (new_active == old_active) { /* do nothing */ printk(KERN_INFO DRV_NAME ": %s: %s is already the current active slave.\n", @@ -1273,6 +1326,7 @@ static struct attribute *per_bond_attrs[] = { &class_device_attr_slaves.attr, &class_device_attr_mode.attr, + &class_device_attr_arp_validate.attr, &class_device_attr_arp_interval.attr, &class_device_attr_arp_ip_target.attr, &class_device_attr_downdelay.attr,
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index 0bdfe2c..dc434fb 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h
@@ -22,8 +22,8 @@ #include "bond_3ad.h" #include "bond_alb.h" -#define DRV_VERSION "3.0.3" -#define DRV_RELDATE "March 23, 2006" +#define DRV_VERSION "3.1.1" +#define DRV_RELDATE "September 26, 2006" #define DRV_NAME "bonding" #define DRV_DESCRIPTION "Ethernet Channel Bonding Driver" @@ -126,6 +126,7 @@ int xmit_policy; int miimon; int arp_interval; + int arp_validate; int use_carrier; int updelay; int downdelay; @@ -149,8 +150,9 @@ struct net_device *dev; /* first - useful for panic debug */ struct slave *next; struct slave *prev; - s16 delay; + int delay; u32 jiffies; + u32 last_arp_rx; s8 link; /* one of BOND_LINK_XXXX */ s8 state; /* one of BOND_STATE_XXXX */ u32 original_flags; @@ -198,6 +200,7 @@ struct bond_params params; struct list_head vlan_list; struct vlan_group *vlgrp; + struct packet_type arp_mon_pt; }; /** @@ -228,6 +231,25 @@ return (struct bonding *)slave->dev->master->priv; } +#define BOND_ARP_VALIDATE_NONE 0 +#define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) +#define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) +#define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ + BOND_ARP_VALIDATE_BACKUP) + +extern inline int slave_do_arp_validate(struct bonding *bond, struct slave *slave) +{ + return bond->params.arp_validate & (1 << slave->state); +} + +extern inline u32 slave_last_rx(struct bonding *bond, struct slave *slave) +{ + if (slave_do_arp_validate(bond, slave)) + return slave->last_arp_rx; + + return slave->dev->last_rx; +} + static inline void bond_set_slave_inactive_flags(struct slave *slave) { struct bonding *bond = slave->dev->master->priv; @@ -235,12 +257,14 @@ bond->params.mode != BOND_MODE_ALB) slave->state = BOND_STATE_BACKUP; slave->dev->priv_flags |= IFF_SLAVE_INACTIVE; + if (slave_do_arp_validate(bond, slave)) + slave->dev->priv_flags |= IFF_SLAVE_NEEDARP; } static inline void bond_set_slave_active_flags(struct slave *slave) { slave->state = BOND_STATE_ACTIVE; - slave->dev->priv_flags &= ~IFF_SLAVE_INACTIVE; + slave->dev->priv_flags &= ~(IFF_SLAVE_INACTIVE | IFF_SLAVE_NEEDARP); } static inline void bond_set_master_3ad_flags(struct bonding *bond) @@ -284,6 +308,8 @@ const char *bond_mode_name(int mode); void bond_select_active_slave(struct bonding *bond); void bond_change_active_slave(struct bonding *bond, struct slave *new_active); +void bond_register_arp(struct bonding *); +void bond_unregister_arp(struct bonding *); #endif /* _LINUX_BONDING_H */
diff --git a/drivers/net/e1000/e1000_hw.h b/drivers/net/e1000/e1000_hw.h index a170e96..4020acb 100644 --- a/drivers/net/e1000/e1000_hw.h +++ b/drivers/net/e1000/e1000_hw.h
@@ -1367,8 +1367,8 @@ /* Structure containing variables used by the shared code (e1000_hw.c) */ struct e1000_hw { - uint8_t *hw_addr; - uint8_t *flash_address; + uint8_t __iomem *hw_addr; + uint8_t __iomem *flash_address; e1000_mac_type mac_type; e1000_phy_type phy_type; uint32_t phy_init_script;
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 97db910..eea1d66 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c
@@ -3789,6 +3789,12 @@ /* setup packet for tx */ pkt_len = ETH_DATA_LEN; tx_skb = dev_alloc_skb(pkt_len); + if (!tx_skb) { + printk(KERN_ERR "dev_alloc_skb() failed during loopback test" + " of %s\n", dev->name); + ret = 0; + goto out; + } pkt_data = skb_put(tx_skb, pkt_len); for (i = 0; i < pkt_len; i++) pkt_data[i] = (u8)(i & 0xff); @@ -3853,7 +3859,7 @@ tx_skb->end-tx_skb->data, PCI_DMA_TODEVICE); dev_kfree_skb_any(tx_skb); - + out: /* stop engines */ nv_stop_rx(dev); nv_stop_tx(dev);
diff --git a/drivers/net/gt64240eth.h b/drivers/net/gt64240eth.h deleted file mode 100644 index 0d6f486..0000000 --- a/drivers/net/gt64240eth.h +++ /dev/null
@@ -1,402 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 2001 Patton Electronics Company - * Copyright (C) 2002 Momentum Computer - * - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * stevel@mvista.com or support@mvista.com - * - * This program is free software; you can distribute it and/or modify it - * under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * Ethernet driver definitions for the MIPS GT96100 Advanced - * Communication Controller. - * - * Modified for the Marvellous GT64240 Retarded Communication Controller. - */ -#ifndef _GT64240ETH_H -#define _GT64240ETH_H - -#include <asm/gt64240.h> - -#define ETHERNET_PORTS_DIFFERENCE_OFFSETS 0x400 - -/* Translate those weanie names from Galileo/VxWorks header files: */ - -#define GT64240_MRR MAIN_ROUTING_REGISTER -#define GT64240_CIU_ARBITER_CONFIG COMM_UNIT_ARBITER_CONFIGURATION_REGISTER -#define GT64240_CIU_ARBITER_CONTROL COMM_UNIT_ARBITER_CONTROL -#define GT64240_MAIN_LOW_CAUSE LOW_INTERRUPT_CAUSE_REGISTER -#define GT64240_MAIN_HIGH_CAUSE HIGH_INTERRUPT_CAUSE_REGISTER -#define GT64240_CPU_LOW_MASK CPU_INTERRUPT_MASK_REGISTER_LOW -#define GT64240_CPU_HIGH_MASK CPU_INTERRUPT_MASK_REGISTER_HIGH -#define GT64240_CPU_SELECT_CAUSE CPU_SELECT_CAUSE_REGISTER - -#define GT64240_ETH_PHY_ADDR_REG ETHERNET_PHY_ADDRESS_REGISTER -#define GT64240_ETH_PORT_CONFIG ETHERNET0_PORT_CONFIGURATION_REGISTER -#define GT64240_ETH_PORT_CONFIG_EXT ETHERNET0_PORT_CONFIGURATION_EXTEND_REGISTER -#define GT64240_ETH_PORT_COMMAND ETHERNET0_PORT_COMMAND_REGISTER -#define GT64240_ETH_PORT_STATUS ETHERNET0_PORT_STATUS_REGISTER -#define GT64240_ETH_IO_SIZE ETHERNET_PORTS_DIFFERENCE_OFFSETS -#define GT64240_ETH_SMI_REG ETHERNET_SMI_REGISTER -#define GT64240_ETH_MIB_COUNT_BASE ETHERNET0_MIB_COUNTER_BASE -#define GT64240_ETH_SDMA_CONFIG ETHERNET0_SDMA_CONFIGURATION_REGISTER -#define GT64240_ETH_SDMA_COMM ETHERNET0_SDMA_COMMAND_REGISTER -#define GT64240_ETH_INT_MASK ETHERNET0_INTERRUPT_MASK_REGISTER -#define GT64240_ETH_INT_CAUSE ETHERNET0_INTERRUPT_CAUSE_REGISTER -#define GT64240_ETH_CURR_TX_DESC_PTR0 ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER0 -#define GT64240_ETH_CURR_TX_DESC_PTR1 ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER1 -#define GT64240_ETH_1ST_RX_DESC_PTR0 ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER0 -#define GT64240_ETH_CURR_RX_DESC_PTR0 ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER0 -#define GT64240_ETH_HASH_TBL_PTR ETHERNET0_HASH_TABLE_POINTER_REGISTER - -/* Turn on NAPI by default */ - -#define GT64240_NAPI 1 - -/* Some 64240 settings that SHOULD eventually be setup in PROM monitor: */ -/* (Board-specific to the DSL3224 Rev A board ONLY!) */ -#define D3224_MPP_CTRL0_SETTING 0x66669900 -#define D3224_MPP_CTRL1_SETTING 0x00000000 -#define D3224_MPP_CTRL2_SETTING 0x00887700 -#define D3224_MPP_CTRL3_SETTING 0x00000044 -#define D3224_GPP_IO_CTRL_SETTING 0x0000e800 -#define D3224_GPP_LEVEL_CTRL_SETTING 0xf001f703 -#define D3224_GPP_VALUE_SETTING 0x00000000 - -/* Keep the ring sizes a power of two for efficiency. */ -//-#define TX_RING_SIZE 16 -#define TX_RING_SIZE 64 /* TESTING !!! */ -#define RX_RING_SIZE 32 -#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer. */ - -#define RX_HASH_TABLE_SIZE 16384 -#define HASH_HOP_NUMBER 12 - -#define NUM_INTERFACES 3 - -#define GT64240ETH_TX_TIMEOUT HZ/4 - -#define MIPS_GT64240_BASE 0xf4000000 -#define GT64240_ETH0_BASE (MIPS_GT64240_BASE + GT64240_ETH_PORT_CONFIG) -#define GT64240_ETH1_BASE (GT64240_ETH0_BASE + GT64240_ETH_IO_SIZE) -#define GT64240_ETH2_BASE (GT64240_ETH1_BASE + GT64240_ETH_IO_SIZE) - -#if defined(CONFIG_MIPS_DSL3224) -#define GT64240_ETHER0_IRQ 4 -#define GT64240_ETHER1_IRQ 4 -#else -#define GT64240_ETHER0_IRQ -1 -#define GT64240_ETHER1_IRQ -1 -#endif - -#define REV_GT64240 0x1 -#define REV_GT64240A 0x10 - -#define GT64240ETH_READ(gp, offset) \ - GT_READ((gp)->port_offset + (offset)) - -#define GT64240ETH_WRITE(gp, offset, data) \ - GT_WRITE((gp)->port_offset + (offset), (data)) - -#define GT64240ETH_SETBIT(gp, offset, bits) \ - GT64240ETH_WRITE((gp), (offset), \ - GT64240ETH_READ((gp), (offset)) | (bits)) - -#define GT64240ETH_CLRBIT(gp, offset, bits) \ - GT64240ETH_WRITE((gp), (offset), \ - GT64240ETH_READ((gp), (offset)) & ~(bits)) - -#define GT64240_READ(ofs) GT_READ(ofs) -#define GT64240_WRITE(ofs, data) GT_WRITE((ofs), (data)) - -/* Bit definitions of the SMI Reg */ -enum { - smirDataMask = 0xffff, - smirPhyAdMask = 0x1f << 16, - smirPhyAdBit = 16, - smirRegAdMask = 0x1f << 21, - smirRegAdBit = 21, - smirOpCode = 1 << 26, - smirReadValid = 1 << 27, - smirBusy = 1 << 28 -}; - -/* Bit definitions of the Port Config Reg */ -enum pcr_bits { - pcrPM = 1 << 0, - pcrRBM = 1 << 1, - pcrPBF = 1 << 2, - pcrEN = 1 << 7, - pcrLPBKMask = 0x3 << 8, - pcrLPBKBit = 1 << 8, - pcrFC = 1 << 10, - pcrHS = 1 << 12, - pcrHM = 1 << 13, - pcrHDM = 1 << 14, - pcrHD = 1 << 15, - pcrISLMask = 0x7 << 28, - pcrISLBit = 28, - pcrACCS = 1 << 31 -}; - -/* Bit definitions of the Port Config Extend Reg */ -enum pcxr_bits { - pcxrIGMP = 1, - pcxrSPAN = 2, - pcxrPAR = 4, - pcxrPRIOtxMask = 0x7 << 3, - pcxrPRIOtxBit = 3, - pcxrPRIOrxMask = 0x3 << 6, - pcxrPRIOrxBit = 6, - pcxrPRIOrxOverride = 1 << 8, - pcxrDPLXen = 1 << 9, - pcxrFCTLen = 1 << 10, - pcxrFLP = 1 << 11, - pcxrFCTL = 1 << 12, - pcxrMFLMask = 0x3 << 14, - pcxrMFLBit = 14, - pcxrMIBclrMode = 1 << 16, - pcxrSpeed = 1 << 18, - pcxrSpeeden = 1 << 19, - pcxrRMIIen = 1 << 20, - pcxrDSCPen = 1 << 21 -}; - -/* Bit definitions of the Port Command Reg */ -enum pcmr_bits { - pcmrFJ = 1 << 15 -}; - - -/* Bit definitions of the Port Status Reg */ -enum psr_bits { - psrSpeed = 1, - psrDuplex = 2, - psrFctl = 4, - psrLink = 8, - psrPause = 1 << 4, - psrTxLow = 1 << 5, - psrTxHigh = 1 << 6, - psrTxInProg = 1 << 7 -}; - -/* Bit definitions of the SDMA Config Reg */ -enum sdcr_bits { - sdcrRCMask = 0xf << 2, - sdcrRCBit = 2, - sdcrBLMR = 1 << 6, - sdcrBLMT = 1 << 7, - sdcrPOVR = 1 << 8, - sdcrRIFB = 1 << 9, - sdcrBSZMask = 0x3 << 12, - sdcrBSZBit = 12 -}; - -/* Bit definitions of the SDMA Command Reg */ -enum sdcmr_bits { - sdcmrERD = 1 << 7, - sdcmrAR = 1 << 15, - sdcmrSTDH = 1 << 16, - sdcmrSTDL = 1 << 17, - sdcmrTXDH = 1 << 23, - sdcmrTXDL = 1 << 24, - sdcmrAT = 1 << 31 -}; - -/* Bit definitions of the Interrupt Cause Reg */ -enum icr_bits { - icrRxBuffer = 1, - icrTxBufferHigh = 1 << 2, - icrTxBufferLow = 1 << 3, - icrTxEndHigh = 1 << 6, - icrTxEndLow = 1 << 7, - icrRxError = 1 << 8, - icrTxErrorHigh = 1 << 10, - icrTxErrorLow = 1 << 11, - icrRxOVR = 1 << 12, - icrTxUdr = 1 << 13, - icrRxBufferQ0 = 1 << 16, - icrRxBufferQ1 = 1 << 17, - icrRxBufferQ2 = 1 << 18, - icrRxBufferQ3 = 1 << 19, - icrRxErrorQ0 = 1 << 20, - icrRxErrorQ1 = 1 << 21, - icrRxErrorQ2 = 1 << 22, - icrRxErrorQ3 = 1 << 23, - icrMIIPhySTC = 1 << 28, - icrSMIdone = 1 << 29, - icrEtherIntSum = 1 << 31 -}; - - -/* The Rx and Tx descriptor lists. */ -#ifdef __LITTLE_ENDIAN -typedef struct { - u32 cmdstat; - u16 reserved; //-prk21aug01 u32 reserved:16; - u16 byte_cnt; //-prk21aug01 u32 byte_cnt:16; - u32 buff_ptr; - u32 next; -} gt64240_td_t; - -typedef struct { - u32 cmdstat; - u16 byte_cnt; //-prk21aug01 u32 byte_cnt:16; - u16 buff_sz; //-prk21aug01 u32 buff_sz:16; - u32 buff_ptr; - u32 next; -} gt64240_rd_t; -#elif defined(__BIG_ENDIAN) -typedef struct { - u16 byte_cnt; //-prk21aug01 u32 byte_cnt:16; - u16 reserved; //-prk21aug01 u32 reserved:16; - u32 cmdstat; - u32 next; - u32 buff_ptr; -} gt64240_td_t; - -typedef struct { - u16 buff_sz; //-prk21aug01 u32 buff_sz:16; - u16 byte_cnt; //-prk21aug01 u32 byte_cnt:16; - u32 cmdstat; - u32 next; - u32 buff_ptr; -} gt64240_rd_t; -#else -#error Either __BIG_ENDIAN or __LITTLE_ENDIAN must be defined! -#endif - - -/* Values for the Tx command-status descriptor entry. */ -enum td_cmdstat { - txOwn = 1 << 31, - txAutoMode = 1 << 30, - txEI = 1 << 23, - txGenCRC = 1 << 22, - txPad = 1 << 18, - txFirst = 1 << 17, - txLast = 1 << 16, - txErrorSummary = 1 << 15, - txReTxCntMask = 0x0f << 10, - txReTxCntBit = 10, - txCollision = 1 << 9, - txReTxLimit = 1 << 8, - txUnderrun = 1 << 6, - txLateCollision = 1 << 5 -}; - - -/* Values for the Rx command-status descriptor entry. */ -enum rd_cmdstat { - rxOwn = 1 << 31, - rxAutoMode = 1 << 30, - rxEI = 1 << 23, - rxFirst = 1 << 17, - rxLast = 1 << 16, - rxErrorSummary = 1 << 15, - rxIGMP = 1 << 14, - rxHashExpired = 1 << 13, - rxMissedFrame = 1 << 12, - rxFrameType = 1 << 11, - rxShortFrame = 1 << 8, - rxMaxFrameLen = 1 << 7, - rxOverrun = 1 << 6, - rxCollision = 1 << 4, - rxCRCError = 1 -}; - -/* Bit fields of a Hash Table Entry */ -enum hash_table_entry { - hteValid = 1, - hteSkip = 2, - hteRD = 4 -}; - -// The MIB counters -typedef struct { - u32 byteReceived; - u32 byteSent; - u32 framesReceived; - u32 framesSent; - u32 totalByteReceived; - u32 totalFramesReceived; - u32 broadcastFramesReceived; - u32 multicastFramesReceived; - u32 cRCError; - u32 oversizeFrames; - u32 fragments; - u32 jabber; - u32 collision; - u32 lateCollision; - u32 frames64; - u32 frames65_127; - u32 frames128_255; - u32 frames256_511; - u32 frames512_1023; - u32 frames1024_MaxSize; - u32 macRxError; - u32 droppedFrames; - u32 outMulticastFrames; - u32 outBroadcastFrames; - u32 undersizeFrames; -} mib_counters_t; - - -struct gt64240_private { - gt64240_rd_t *rx_ring; - gt64240_td_t *tx_ring; - // The Rx and Tx rings must be 16-byte aligned - dma_addr_t rx_ring_dma; - dma_addr_t tx_ring_dma; - char *hash_table; - // The Hash Table must be 8-byte aligned - dma_addr_t hash_table_dma; - int hash_mode; - - // The Rx buffers must be 8-byte aligned - char *rx_buff; - dma_addr_t rx_buff_dma; - // Tx buffers (tx_skbuff[i]->data) with less than 8 bytes - // of payload must be 8-byte aligned - struct sk_buff *tx_skbuff[TX_RING_SIZE]; - int rx_next_out; /* The next free ring entry to receive */ - int tx_next_in; /* The next free ring entry to send */ - int tx_next_out; /* The last ring entry the ISR processed */ - int tx_count; /* current # of pkts waiting to be sent in Tx ring */ - int intr_work_done; /* number of Rx and Tx pkts processed in the isr */ - int tx_full; /* Tx ring is full */ - - mib_counters_t mib; - struct net_device_stats stats; - - int io_size; - int port_num; // 0 or 1 - u32 port_offset; - - int phy_addr; // PHY address - u32 last_psr; // last value of the port status register - - int options; /* User-settable misc. driver options. */ - int drv_flags; - spinlock_t lock; /* Serialise access to device */ - struct mii_if_info mii_if; - - u32 msg_enable; -}; - -#endif /* _GT64240ETH_H */
diff --git a/drivers/net/irda/irda-usb.c b/drivers/net/irda/irda-usb.c index 2a0d538..383cef1 100644 --- a/drivers/net/irda/irda-usb.c +++ b/drivers/net/irda/irda-usb.c
@@ -671,10 +671,8 @@ * Jean II */ done = 1; break; - case -ECONNABORTED: /* -103 */ - case -ECONNRESET: /* -104 */ - case -ETIMEDOUT: /* -110 */ - case -ENOENT: /* -2 (urb unlinked by us) */ + case -ECONNRESET: + case -ENOENT: /* urb unlinked by us */ default: /* ??? - Play safe */ urb->status = 0; netif_wake_queue(self->netdev); @@ -712,10 +710,8 @@ * Jean II */ done = 1; break; - case -ECONNABORTED: /* -103 */ - case -ECONNRESET: /* -104 */ - case -ETIMEDOUT: /* -110 */ - case -ENOENT: /* -2 (urb unlinked by us) */ + case -ECONNRESET: + case -ENOENT: /* urb unlinked by us */ default: /* ??? - Play safe */ if(skb != NULL) { dev_kfree_skb_any(skb); @@ -845,14 +841,14 @@ self->stats.rx_crc_errors++; /* Also precursor to a hot-unplug on UHCI. */ /* Fallthrough... */ - case -ECONNRESET: /* -104 */ + case -ECONNRESET: /* Random error, if I remember correctly */ /* uhci_cleanup_unlink() is going to kill the Rx * URB just after we return. No problem, at this * point the URB will be idle ;-) - Jean II */ - case -ESHUTDOWN: /* -108 */ + case -ESHUTDOWN: /* That's usually a hot-unplug. Submit will fail... */ - case -ETIMEDOUT: /* -110 */ + case -ETIME: /* Usually precursor to a hot-unplug on OHCI. */ default: self->stats.rx_errors++;
diff --git a/drivers/net/irda/vlsi_ir.h b/drivers/net/irda/vlsi_ir.h index a82a4ba..c37f0bc 100644 --- a/drivers/net/irda/vlsi_ir.h +++ b/drivers/net/irda/vlsi_ir.h
@@ -58,7 +58,7 @@ /* PDE() introduced in 2.5.4 */ #ifdef CONFIG_PROC_FS -#define PDE(inode) ((inode)->u.generic_ip) +#define PDE(inode) ((inode)->i_private) #endif /* irda crc16 calculation exported in 2.5.42 */
diff --git a/drivers/net/ne3210.c b/drivers/net/ne3210.c index 0fa8e4d..d663289 100644 --- a/drivers/net/ne3210.c +++ b/drivers/net/ne3210.c
@@ -343,6 +343,7 @@ { "NVL1801" }, { "" }, }; +MODULE_DEVICE_TABLE(eisa, ne3210_ids); static struct eisa_driver ne3210_eisa_driver = { .id_table = ne3210_ids,
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 2d1ecfd..ecd3da1 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c
@@ -522,7 +522,7 @@ static int genphy_config_init(struct phy_device *phydev) { - u32 val; + int val; u32 features; /* For now, I'll claim that the generic driver supports
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c index f5dbeb2..1bf23e4 100644 --- a/drivers/net/s2io.c +++ b/drivers/net/s2io.c
@@ -2904,7 +2904,7 @@ { u64 val64 = 0x0; nic_t *sp = dev->priv; - XENA_dev_config_t *bar0 = (XENA_dev_config_t *)sp->bar0; + XENA_dev_config_t __iomem *bar0 = sp->bar0; //address transaction val64 = val64 | MDIO_MMD_INDX_ADDR(addr) @@ -2953,7 +2953,7 @@ u64 val64 = 0x0; u64 rval64 = 0x0; nic_t *sp = dev->priv; - XENA_dev_config_t *bar0 = (XENA_dev_config_t *)sp->bar0; + XENA_dev_config_t __iomem *bar0 = sp->bar0; /* address transaction */ val64 = val64 | MDIO_MMD_INDX_ADDR(addr) @@ -3276,7 +3276,7 @@ * SUCCESS on success and FAILURE on failure. */ -static int wait_for_cmd_complete(void *addr, u64 busy_bit) +static int wait_for_cmd_complete(void __iomem *addr, u64 busy_bit) { int ret = FAILURE, cnt = 0; u64 val64; @@ -4303,11 +4303,11 @@ sp->stats.tx_errors = le32_to_cpu(mac_control->stats_info->tmac_any_err_frms); sp->stats.rx_errors = - le32_to_cpu(mac_control->stats_info->rmac_drop_frms); + le64_to_cpu(mac_control->stats_info->rmac_drop_frms); sp->stats.multicast = le32_to_cpu(mac_control->stats_info->rmac_vld_mcst_frms); sp->stats.rx_length_errors = - le32_to_cpu(mac_control->stats_info->rmac_long_frms); + le64_to_cpu(mac_control->stats_info->rmac_long_frms); return (&sp->stats); }
diff --git a/drivers/net/skge.c b/drivers/net/skge.c index 9142d91..705e9a8 100644 --- a/drivers/net/skge.c +++ b/drivers/net/skge.c
@@ -58,6 +58,7 @@ #define TX_WATCHDOG (5 * HZ) #define NAPI_WEIGHT 64 #define BLINK_MS 250 +#define LINK_HZ (HZ/2) MODULE_DESCRIPTION("SysKonnect Gigabit Ethernet driver"); MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>"); @@ -605,7 +606,12 @@ if (hw->chip_id == CHIP_ID_GENESIS) { switch (mode) { case LED_MODE_OFF: - xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF); + if (hw->phy_type == SK_PHY_BCOM) + xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_OFF); + else { + skge_write32(hw, SK_REG(port, TX_LED_VAL), 0); + skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_T_OFF); + } skge_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); skge_write32(hw, SK_REG(port, RX_LED_VAL), 0); skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_T_OFF); @@ -625,8 +631,14 @@ skge_write32(hw, SK_REG(port, RX_LED_VAL), 100); skge_write8(hw, SK_REG(port, RX_LED_CTRL), LED_START); - xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON); - break; + if (hw->phy_type == SK_PHY_BCOM) + xm_phy_write(hw, port, PHY_BCOM_P_EXT_CTRL, PHY_B_PEC_LED_ON); + else { + skge_write8(hw, SK_REG(port, TX_LED_TST), LED_T_ON); + skge_write32(hw, SK_REG(port, TX_LED_VAL), 100); + skge_write8(hw, SK_REG(port, TX_LED_CTRL), LED_START); + } + } } else { switch (mode) { @@ -879,6 +891,9 @@ xm_write16(hw, port, XM_PHY_ADDR, reg | hw->phy_addr); *val = xm_read16(hw, port, XM_PHY_DATA); + if (hw->phy_type == SK_PHY_XMAC) + goto ready; + for (i = 0; i < PHY_RETRIES; i++) { if (xm_read16(hw, port, XM_MMU_CMD) & XM_MMU_PHY_RDY) goto ready; @@ -965,7 +980,8 @@ xm_write16(hw, port, XM_RX_CMD, 0); /* reset RX CMD Reg */ /* disable Broadcom PHY IRQ */ - xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff); + if (hw->phy_type == SK_PHY_BCOM) + xm_write16(hw, port, PHY_BCOM_INT_MASK, 0xffff); xm_outhash(hw, port, XM_HSM, zero); } @@ -1000,60 +1016,64 @@ if (netif_carrier_ok(dev)) skge_link_down(skge); - } else { - if (skge->autoneg == AUTONEG_ENABLE && - (status & PHY_ST_AN_OVER)) { - u16 lpa = xm_phy_read(hw, port, PHY_BCOM_AUNE_LP); - u16 aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT); + return; + } - if (lpa & PHY_B_AN_RF) { - printk(KERN_NOTICE PFX "%s: remote fault\n", - dev->name); - return; - } + if (skge->autoneg == AUTONEG_ENABLE) { + u16 lpa, aux; - /* Check Duplex mismatch */ - switch (aux & PHY_B_AS_AN_RES_MSK) { - case PHY_B_RES_1000FD: - skge->duplex = DUPLEX_FULL; - break; - case PHY_B_RES_1000HD: - skge->duplex = DUPLEX_HALF; - break; - default: - printk(KERN_NOTICE PFX "%s: duplex mismatch\n", - dev->name); - return; - } + if (!(status & PHY_ST_AN_OVER)) + return; - - /* We are using IEEE 802.3z/D5.0 Table 37-4 */ - switch (aux & PHY_B_AS_PAUSE_MSK) { - case PHY_B_AS_PAUSE_MSK: - skge->flow_control = FLOW_MODE_SYMMETRIC; - break; - case PHY_B_AS_PRR: - skge->flow_control = FLOW_MODE_REM_SEND; - break; - case PHY_B_AS_PRT: - skge->flow_control = FLOW_MODE_LOC_SEND; - break; - default: - skge->flow_control = FLOW_MODE_NONE; - } - - skge->speed = SPEED_1000; + lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP); + if (lpa & PHY_B_AN_RF) { + printk(KERN_NOTICE PFX "%s: remote fault\n", + dev->name); + return; } - if (!netif_carrier_ok(dev)) - genesis_link_up(skge); + aux = xm_phy_read(hw, port, PHY_BCOM_AUX_STAT); + + /* Check Duplex mismatch */ + switch (aux & PHY_B_AS_AN_RES_MSK) { + case PHY_B_RES_1000FD: + skge->duplex = DUPLEX_FULL; + break; + case PHY_B_RES_1000HD: + skge->duplex = DUPLEX_HALF; + break; + default: + printk(KERN_NOTICE PFX "%s: duplex mismatch\n", + dev->name); + return; + } + + + /* We are using IEEE 802.3z/D5.0 Table 37-4 */ + switch (aux & PHY_B_AS_PAUSE_MSK) { + case PHY_B_AS_PAUSE_MSK: + skge->flow_control = FLOW_MODE_SYMMETRIC; + break; + case PHY_B_AS_PRR: + skge->flow_control = FLOW_MODE_REM_SEND; + break; + case PHY_B_AS_PRT: + skge->flow_control = FLOW_MODE_LOC_SEND; + break; + default: + skge->flow_control = FLOW_MODE_NONE; + } + skge->speed = SPEED_1000; } + + if (!netif_carrier_ok(dev)) + genesis_link_up(skge); } /* Broadcom 5400 only supports giagabit! SysKonnect did not put an additional * Phy on for 100 or 10Mbit operation */ -static void bcom_phy_init(struct skge_port *skge, int jumbo) +static void bcom_phy_init(struct skge_port *skge) { struct skge_hw *hw = skge->hw; int port = skge->port; @@ -1144,7 +1164,7 @@ phy_pause_map[skge->flow_control] | PHY_AN_CSMA); /* Handle Jumbo frames */ - if (jumbo) { + if (hw->dev[port]->mtu > ETH_DATA_LEN) { xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, PHY_B_AC_TX_TST | PHY_B_AC_LONG_PACK); @@ -1157,8 +1177,154 @@ /* Use link status change interrupt */ xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); +} - bcom_check_link(hw, port); +static void xm_phy_init(struct skge_port *skge) +{ + struct skge_hw *hw = skge->hw; + int port = skge->port; + u16 ctrl = 0; + + if (skge->autoneg == AUTONEG_ENABLE) { + if (skge->advertising & ADVERTISED_1000baseT_Half) + ctrl |= PHY_X_AN_HD; + if (skge->advertising & ADVERTISED_1000baseT_Full) + ctrl |= PHY_X_AN_FD; + + switch(skge->flow_control) { + case FLOW_MODE_NONE: + ctrl |= PHY_X_P_NO_PAUSE; + break; + case FLOW_MODE_LOC_SEND: + ctrl |= PHY_X_P_ASYM_MD; + break; + case FLOW_MODE_SYMMETRIC: + ctrl |= PHY_X_P_BOTH_MD; + break; + } + + xm_phy_write(hw, port, PHY_XMAC_AUNE_ADV, ctrl); + + /* Restart Auto-negotiation */ + ctrl = PHY_CT_ANE | PHY_CT_RE_CFG; + } else { + /* Set DuplexMode in Config register */ + if (skge->duplex == DUPLEX_FULL) + ctrl |= PHY_CT_DUP_MD; + /* + * Do NOT enable Auto-negotiation here. This would hold + * the link down because no IDLEs are transmitted + */ + } + + xm_phy_write(hw, port, PHY_XMAC_CTRL, ctrl); + + /* Poll PHY for status changes */ + schedule_delayed_work(&skge->link_thread, LINK_HZ); +} + +static void xm_check_link(struct net_device *dev) +{ + struct skge_port *skge = netdev_priv(dev); + struct skge_hw *hw = skge->hw; + int port = skge->port; + u16 status; + + /* read twice because of latch */ + (void) xm_phy_read(hw, port, PHY_XMAC_STAT); + status = xm_phy_read(hw, port, PHY_XMAC_STAT); + + if ((status & PHY_ST_LSYNC) == 0) { + u16 cmd = xm_read16(hw, port, XM_MMU_CMD); + cmd &= ~(XM_MMU_ENA_RX | XM_MMU_ENA_TX); + xm_write16(hw, port, XM_MMU_CMD, cmd); + /* dummy read to ensure writing */ + (void) xm_read16(hw, port, XM_MMU_CMD); + + if (netif_carrier_ok(dev)) + skge_link_down(skge); + return; + } + + if (skge->autoneg == AUTONEG_ENABLE) { + u16 lpa, res; + + if (!(status & PHY_ST_AN_OVER)) + return; + + lpa = xm_phy_read(hw, port, PHY_XMAC_AUNE_LP); + if (lpa & PHY_B_AN_RF) { + printk(KERN_NOTICE PFX "%s: remote fault\n", + dev->name); + return; + } + + res = xm_phy_read(hw, port, PHY_XMAC_RES_ABI); + + /* Check Duplex mismatch */ + switch (res & (PHY_X_RS_HD | PHY_X_RS_FD)) { + case PHY_X_RS_FD: + skge->duplex = DUPLEX_FULL; + break; + case PHY_X_RS_HD: + skge->duplex = DUPLEX_HALF; + break; + default: + printk(KERN_NOTICE PFX "%s: duplex mismatch\n", + dev->name); + return; + } + + /* We are using IEEE 802.3z/D5.0 Table 37-4 */ + if (lpa & PHY_X_P_SYM_MD) + skge->flow_control = FLOW_MODE_SYMMETRIC; + else if ((lpa & PHY_X_RS_PAUSE) == PHY_X_P_ASYM_MD) + skge->flow_control = FLOW_MODE_REM_SEND; + else if ((lpa & PHY_X_RS_PAUSE) == PHY_X_P_BOTH_MD) + skge->flow_control = FLOW_MODE_LOC_SEND; + else + skge->flow_control = FLOW_MODE_NONE; + + + skge->speed = SPEED_1000; + } + + if (!netif_carrier_ok(dev)) + genesis_link_up(skge); +} + +/* Poll to check for link coming up. + * Since internal PHY is wired to a level triggered pin, can't + * get an interrupt when carrier is detected. + */ +static void xm_link_timer(void *arg) +{ + struct net_device *dev = arg; + struct skge_port *skge = netdev_priv(arg); + struct skge_hw *hw = skge->hw; + int port = skge->port; + + if (!netif_running(dev)) + return; + + if (netif_carrier_ok(dev)) { + xm_read16(hw, port, XM_ISRC); + if (!(xm_read16(hw, port, XM_ISRC) & XM_IS_INP_ASS)) + goto nochange; + } else { + if (xm_read32(hw, port, XM_GP_PORT) & XM_GP_INP_ASS) + goto nochange; + xm_read16(hw, port, XM_ISRC); + if (xm_read16(hw, port, XM_ISRC) & XM_IS_INP_ASS) + goto nochange; + } + + mutex_lock(&hw->phy_mutex); + xm_check_link(dev); + mutex_unlock(&hw->phy_mutex); + +nochange: + schedule_delayed_work(&skge->link_thread, LINK_HZ); } static void genesis_mac_init(struct skge_hw *hw, int port) @@ -1189,20 +1355,29 @@ * namely for the 1000baseTX cards that use the XMAC's * GMII mode. */ - /* Take external Phy out of reset */ - r = skge_read32(hw, B2_GP_IO); - if (port == 0) - r |= GP_DIR_0|GP_IO_0; - else - r |= GP_DIR_2|GP_IO_2; + if (hw->phy_type != SK_PHY_XMAC) { + /* Take external Phy out of reset */ + r = skge_read32(hw, B2_GP_IO); + if (port == 0) + r |= GP_DIR_0|GP_IO_0; + else + r |= GP_DIR_2|GP_IO_2; - skge_write32(hw, B2_GP_IO, r); + skge_write32(hw, B2_GP_IO, r); + + /* Enable GMII interface */ + xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD); + } - /* Enable GMII interface */ - xm_write16(hw, port, XM_HW_CFG, XM_HW_GMII_MD); - - bcom_phy_init(skge, jumbo); + switch(hw->phy_type) { + case SK_PHY_XMAC: + xm_phy_init(skge); + break; + case SK_PHY_BCOM: + bcom_phy_init(skge); + bcom_check_link(hw, port); + } /* Set Station Address */ xm_outaddr(hw, port, XM_SA, dev->dev_addr); @@ -1335,16 +1510,18 @@ skge_write16(hw, SK_REG(port, TX_MFF_CTRL1), MFF_SET_MAC_RST); /* For external PHYs there must be special handling */ - reg = skge_read32(hw, B2_GP_IO); - if (port == 0) { - reg |= GP_DIR_0; - reg &= ~GP_IO_0; - } else { - reg |= GP_DIR_2; - reg &= ~GP_IO_2; + if (hw->phy_type != SK_PHY_XMAC) { + reg = skge_read32(hw, B2_GP_IO); + if (port == 0) { + reg |= GP_DIR_0; + reg &= ~GP_IO_0; + } else { + reg |= GP_DIR_2; + reg &= ~GP_IO_2; + } + skge_write32(hw, B2_GP_IO, reg); + skge_read32(hw, B2_GP_IO); } - skge_write32(hw, B2_GP_IO, reg); - skge_read32(hw, B2_GP_IO); xm_write16(hw, port, XM_MMU_CMD, xm_read16(hw, port, XM_MMU_CMD) @@ -1406,7 +1583,7 @@ struct skge_hw *hw = skge->hw; int port = skge->port; u16 cmd; - u32 mode, msk; + u32 mode; cmd = xm_read16(hw, port, XM_MMU_CMD); @@ -1454,27 +1631,24 @@ } xm_write32(hw, port, XM_MODE, mode); - - msk = XM_DEF_MSK; - /* disable GP0 interrupt bit for external Phy */ - msk |= XM_IS_INP_ASS; - - xm_write16(hw, port, XM_IMSK, msk); + xm_write16(hw, port, XM_IMSK, XM_DEF_MSK); xm_read16(hw, port, XM_ISRC); /* get MMU Command Reg. */ cmd = xm_read16(hw, port, XM_MMU_CMD); - if (skge->duplex == DUPLEX_FULL) + if (hw->phy_type != SK_PHY_XMAC && skge->duplex == DUPLEX_FULL) cmd |= XM_MMU_GMII_FD; /* * Workaround BCOM Errata (#10523) for all BCom Phys * Enable Power Management after link up */ - xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, - xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL) - & ~PHY_B_AC_DIS_PM); - xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); + if (hw->phy_type == SK_PHY_BCOM) { + xm_phy_write(hw, port, PHY_BCOM_AUX_CTRL, + xm_phy_read(hw, port, PHY_BCOM_AUX_CTRL) + & ~PHY_B_AC_DIS_PM); + xm_phy_write(hw, port, PHY_BCOM_INT_MASK, PHY_B_DEF_MSK); + } /* enable Rx/Tx */ xm_write16(hw, port, XM_MMU_CMD, @@ -2240,6 +2414,8 @@ printk(KERN_INFO PFX "%s: disabling interface\n", dev->name); netif_stop_queue(dev); + if (hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC) + cancel_rearming_delayed_work(&skge->link_thread); skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF); if (hw->chip_id == CHIP_ID_GENESIS) @@ -2862,7 +3038,7 @@ if (netif_running(dev)) { if (hw->chip_id != CHIP_ID_GENESIS) yukon_phy_intr(skge); - else + else if (hw->phy_type == SK_PHY_BCOM) bcom_phy_intr(skge); } } @@ -3014,7 +3190,7 @@ { u32 reg; u16 ctst, pci_status; - u8 t8, mac_cfg, pmd_type, phy_type; + u8 t8, mac_cfg, pmd_type; int i; ctst = skge_read16(hw, B0_CTST); @@ -3038,19 +3214,22 @@ ctst & (CS_CLK_RUN_HOT|CS_CLK_RUN_RST|CS_CLK_RUN_ENA)); hw->chip_id = skge_read8(hw, B2_CHIP_ID); - phy_type = skge_read8(hw, B2_E_1) & 0xf; + hw->phy_type = skge_read8(hw, B2_E_1) & 0xf; pmd_type = skge_read8(hw, B2_PMD_TYP); hw->copper = (pmd_type == 'T' || pmd_type == '1'); switch (hw->chip_id) { case CHIP_ID_GENESIS: - switch (phy_type) { + switch (hw->phy_type) { + case SK_PHY_XMAC: + hw->phy_addr = PHY_ADDR_XMAC; + break; case SK_PHY_BCOM: hw->phy_addr = PHY_ADDR_BCOM; break; default: printk(KERN_ERR PFX "%s: unsupported phy type 0x%x\n", - pci_name(hw->pdev), phy_type); + pci_name(hw->pdev), hw->phy_type); return -EOPNOTSUPP; } break; @@ -3058,7 +3237,7 @@ case CHIP_ID_YUKON: case CHIP_ID_YUKON_LITE: case CHIP_ID_YUKON_LP: - if (phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S') + if (hw->phy_type < SK_PHY_MARV_COPPER && pmd_type != 'S') hw->copper = 1; hw->phy_addr = PHY_ADDR_MARV; @@ -3089,10 +3268,13 @@ else hw->ram_size = t8 * 4096; - hw->intr_mask = IS_HW_ERR | IS_EXT_REG | IS_PORT_1; + hw->intr_mask = IS_HW_ERR | IS_PORT_1; if (hw->ports > 1) hw->intr_mask |= IS_PORT_2; + if (!(hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC)) + hw->intr_mask |= IS_EXT_REG; + if (hw->chip_id == CHIP_ID_GENESIS) genesis_init(hw); else { @@ -3226,6 +3408,9 @@ skge->port = port; + /* Only used for Genesis XMAC */ + INIT_WORK(&skge->link_thread, xm_link_timer, dev); + if (hw->chip_id != CHIP_ID_GENESIS) { dev->features |= NETIF_F_IP_CSUM | NETIF_F_SG; skge->rx_csum = 1;
diff --git a/drivers/net/skge.h b/drivers/net/skge.h index 79e0927..d0b47d4 100644 --- a/drivers/net/skge.h +++ b/drivers/net/skge.h
@@ -934,7 +934,7 @@ PHY_XMAC_AUNE_ADV = 0x04,/* 16 bit r/w Auto-Neg. Advertisement */ PHY_XMAC_AUNE_LP = 0x05,/* 16 bit r/o Link Partner Abi Reg */ PHY_XMAC_AUNE_EXP = 0x06,/* 16 bit r/o Auto-Neg. Expansion Reg */ - PHY_XMAC_NEPG = 0x07,/* 16 bit r/w Next Page Register */ + PHY_XMAC_NEPG = 0x07,/* 16 bit r/w Next Page Register */ PHY_XMAC_NEPG_LP = 0x08,/* 16 bit r/o Next Page Link Partner */ PHY_XMAC_EXT_STAT = 0x0f,/* 16 bit r/o Ext Status Register */ @@ -1097,13 +1097,36 @@ /* Pause Bits (PHY_X_AN_PAUSE and PHY_X_RS_PAUSE) encoding */ enum { - PHY_X_P_NO_PAUSE = 0<<7,/* Bit 8..7: no Pause Mode */ + PHY_X_P_NO_PAUSE= 0<<7,/* Bit 8..7: no Pause Mode */ PHY_X_P_SYM_MD = 1<<7, /* Bit 8..7: symmetric Pause Mode */ PHY_X_P_ASYM_MD = 2<<7,/* Bit 8..7: asymmetric Pause Mode */ PHY_X_P_BOTH_MD = 3<<7,/* Bit 8..7: both Pause Mode */ }; +/***** PHY_XMAC_EXT_STAT 16 bit r/w Extended Status Register *****/ +enum { + PHY_X_EX_FD = 1<<15, /* Bit 15: Device Supports Full Duplex */ + PHY_X_EX_HD = 1<<14, /* Bit 14: Device Supports Half Duplex */ +}; + +/***** PHY_XMAC_RES_ABI 16 bit r/o PHY Resolved Ability *****/ +enum { + PHY_X_RS_PAUSE = 3<<7, /* Bit 8..7: selected Pause Mode */ + PHY_X_RS_HD = 1<<6, /* Bit 6: Half Duplex Mode selected */ + PHY_X_RS_FD = 1<<5, /* Bit 5: Full Duplex Mode selected */ + PHY_X_RS_ABLMIS = 1<<4, /* Bit 4: duplex or pause cap mismatch */ + PHY_X_RS_PAUMIS = 1<<3, /* Bit 3: pause capability mismatch */ +}; + +/* Remote Fault Bits (PHY_X_AN_RFB) encoding */ +enum { + X_RFB_OK = 0<<12,/* Bit 13..12 No errors, Link OK */ + X_RFB_LF = 1<<12,/* Bit 13..12 Link Failure */ + X_RFB_OFF = 2<<12,/* Bit 13..12 Offline */ + X_RFB_AN_ERR = 3<<12,/* Bit 13..12 Auto-Negotiation Error */ +}; + /* Broadcom-Specific */ /***** PHY_BCOM_1000T_CTRL 16 bit r/w 1000Base-T Control Reg *****/ enum { @@ -2158,8 +2181,8 @@ XM_IS_LNK_AE = 1<<14, /* Bit 14: Link Asynchronous Event */ XM_IS_TX_ABORT = 1<<13, /* Bit 13: Transmit Abort, late Col. etc */ XM_IS_FRC_INT = 1<<12, /* Bit 12: Force INT bit set in GP */ - XM_IS_INP_ASS = 1<<11, /* Bit 11: Input Asserted, GP bit 0 set */ - XM_IS_LIPA_RC = 1<<10, /* Bit 10: Link Partner requests config */ + XM_IS_INP_ASS = 1<<11, /* Bit 11: Input Asserted, GP bit 0 set */ + XM_IS_LIPA_RC = 1<<10, /* Bit 10: Link Partner requests config */ XM_IS_RX_PAGE = 1<<9, /* Bit 9: Page Received */ XM_IS_TX_PAGE = 1<<8, /* Bit 8: Next Page Loaded for Transmit */ XM_IS_AND = 1<<7, /* Bit 7: Auto-Negotiation Done */ @@ -2172,9 +2195,7 @@ XM_IS_RX_COMP = 1<<0, /* Bit 0: Frame Rx Complete */ }; -#define XM_DEF_MSK (~(XM_IS_INP_ASS | XM_IS_LIPA_RC | XM_IS_RX_PAGE | \ - XM_IS_AND | XM_IS_RXC_OV | XM_IS_TXC_OV | \ - XM_IS_RXF_OV | XM_IS_TXF_UR)) +#define XM_DEF_MSK (~(XM_IS_RXC_OV | XM_IS_TXC_OV | XM_IS_RXF_OV | XM_IS_TXF_UR)) /* XM_HW_CFG 16 bit r/w Hardware Config Register */ @@ -2396,6 +2417,7 @@ u8 chip_rev; u8 copper; u8 ports; + u8 phy_type; u32 ram_size; u32 ram_offset; @@ -2422,6 +2444,7 @@ struct net_device_stats net_stats; + struct work_struct link_thread; u8 rx_csum; u8 blink_on; u8 flow_control;
diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h index 7aa7fba..c660e33 100644 --- a/drivers/net/smc91x.h +++ b/drivers/net/smc91x.h
@@ -379,6 +379,24 @@ #define SMC_IRQ_FLAGS (0) +#elif defined(CONFIG_ARCH_VERSATILE) + +#define SMC_CAN_USE_8BIT 1 +#define SMC_CAN_USE_16BIT 1 +#define SMC_CAN_USE_32BIT 1 +#define SMC_NOWAIT 1 + +#define SMC_inb(a, r) readb((a) + (r)) +#define SMC_inw(a, r) readw((a) + (r)) +#define SMC_inl(a, r) readl((a) + (r)) +#define SMC_outb(v, a, r) writeb(v, (a) + (r)) +#define SMC_outw(v, a, r) writew(v, (a) + (r)) +#define SMC_outl(v, a, r) writel(v, (a) + (r)) +#define SMC_insl(a, r, p, l) readsl((a) + (r), p, l) +#define SMC_outsl(a, r, p, l) writesl((a) + (r), p, l) + +#define SMC_IRQ_FLAGS (0) + #else #define SMC_CAN_USE_8BIT 1
diff --git a/drivers/net/stnic.c b/drivers/net/stnic.c index 3fd7a4f..e6f9042 100644 --- a/drivers/net/stnic.c +++ b/drivers/net/stnic.c
@@ -19,7 +19,7 @@ #include <asm/system.h> #include <asm/io.h> -#include <asm/se/se.h> +#include <asm/se.h> #include <asm/machvec.h> #ifdef CONFIG_SH_STANDARD_BIOS #include <asm/sh_bios.h>
diff --git a/drivers/net/sunlance.c b/drivers/net/sunlance.c index 7767074..feb42db 100644 --- a/drivers/net/sunlance.c +++ b/drivers/net/sunlance.c
@@ -1323,9 +1323,9 @@ .get_link = sparc_lance_get_link, }; -static int __init sparc_lance_probe_one(struct sbus_dev *sdev, - struct sbus_dma *ledma, - struct sbus_dev *lebuffer) +static int __devinit sparc_lance_probe_one(struct sbus_dev *sdev, + struct sbus_dma *ledma, + struct sbus_dev *lebuffer) { static unsigned version_printed; struct net_device *dev; @@ -1515,7 +1515,7 @@ } /* On 4m, find the associated dma for the lance chip */ -static inline struct sbus_dma *find_ledma(struct sbus_dev *sdev) +static struct sbus_dma * __devinit find_ledma(struct sbus_dev *sdev) { struct sbus_dma *p; @@ -1533,7 +1533,7 @@ /* Find all the lance cards on the system and initialize them */ static struct sbus_dev sun4_sdev; -static int __init sparc_lance_init(void) +static int __devinit sparc_lance_init(void) { if ((idprom->id_machtype == (SM_SUN4|SM_4_330)) || (idprom->id_machtype == (SM_SUN4|SM_4_470))) {
diff --git a/drivers/net/tokenring/lanstreamer.c b/drivers/net/tokenring/lanstreamer.c index 0d66700..bfc8c3e 100644 --- a/drivers/net/tokenring/lanstreamer.c +++ b/drivers/net/tokenring/lanstreamer.c
@@ -1876,7 +1876,6 @@ datap[size+1]=io_word & 0xff; } - size = sprintf(buffer, "\n%6s: Adapter Address : Node Address : Functional Addr\n", dev->name); size += sprintf(buffer + size, @@ -1932,64 +1931,6 @@ #endif #endif -#if STREAMER_IOCTL && (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) -static int streamer_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -{ - int i; - struct streamer_private *streamer_priv = (struct streamer_private *) dev->priv; - u8 __iomem *streamer_mmio = streamer_priv->streamer_mmio; - - switch(cmd) { - case IOCTL_SISR_MASK: - writew(SISR_MI, streamer_mmio + SISR_MASK_SUM); - break; - case IOCTL_SPIN_LOCK_TEST: - printk(KERN_INFO "spin_lock() called.\n"); - spin_lock(&streamer_priv->streamer_lock); - spin_unlock(&streamer_priv->streamer_lock); - printk(KERN_INFO "spin_unlock() finished.\n"); - break; - case IOCTL_PRINT_BDAS: - printk(KERN_INFO "bdas: RXBDA: %x RXLBDA: %x TX2FDA: %x TX2LFDA: %x\n", - readw(streamer_mmio + RXBDA), - readw(streamer_mmio + RXLBDA), - readw(streamer_mmio + TX2FDA), - readw(streamer_mmio + TX2LFDA)); - break; - case IOCTL_PRINT_REGISTERS: - printk(KERN_INFO "registers:\n"); - printk(KERN_INFO "SISR: %04x MISR: %04x LISR: %04x BCTL: %04x BMCTL: %04x\nmask %04x mask %04x\n", - readw(streamer_mmio + SISR), - readw(streamer_mmio + MISR_RUM), - readw(streamer_mmio + LISR), - readw(streamer_mmio + BCTL), - readw(streamer_mmio + BMCTL_SUM), - readw(streamer_mmio + SISR_MASK), - readw(streamer_mmio + MISR_MASK)); - break; - case IOCTL_PRINT_RX_BUFS: - printk(KERN_INFO "Print rx bufs:\n"); - for(i=0; i<STREAMER_RX_RING_SIZE; i++) - printk(KERN_INFO "rx_ring %d status: 0x%x\n", i, - streamer_priv->streamer_rx_ring[i].status); - break; - case IOCTL_PRINT_TX_BUFS: - printk(KERN_INFO "Print tx bufs:\n"); - for(i=0; i<STREAMER_TX_RING_SIZE; i++) - printk(KERN_INFO "tx_ring %d status: 0x%x\n", i, - streamer_priv->streamer_tx_ring[i].status); - break; - case IOCTL_RX_CMD: - streamer_rx(dev); - printk(KERN_INFO "Sent rx command.\n"); - break; - default: - printk(KERN_INFO "Bad ioctl!\n"); - } - return 0; -} -#endif - static struct pci_driver streamer_pci_driver = { .name = "lanstreamer", .id_table = streamer_pci_tbl,
diff --git a/drivers/net/tokenring/lanstreamer.h b/drivers/net/tokenring/lanstreamer.h index 5557d8e..e7bb349 100644 --- a/drivers/net/tokenring/lanstreamer.h +++ b/drivers/net/tokenring/lanstreamer.h
@@ -62,18 +62,6 @@ #include <linux/version.h> -#if STREAMER_IOCTL && (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) -#include <asm/ioctl.h> -#define IOCTL_PRINT_RX_BUFS SIOCDEVPRIVATE -#define IOCTL_PRINT_TX_BUFS SIOCDEVPRIVATE+1 -#define IOCTL_RX_CMD SIOCDEVPRIVATE+2 -#define IOCTL_TX_CMD SIOCDEVPRIVATE+3 -#define IOCTL_PRINT_REGISTERS SIOCDEVPRIVATE+4 -#define IOCTL_PRINT_BDAS SIOCDEVPRIVATE+5 -#define IOCTL_SPIN_LOCK_TEST SIOCDEVPRIVATE+6 -#define IOCTL_SISR_MASK SIOCDEVPRIVATE+7 -#endif - /* MAX_INTR - the maximum number of times we can loop * inside the interrupt function before returning * control to the OS (maximum value is 256)
diff --git a/drivers/net/tulip/de4x5.c b/drivers/net/tulip/de4x5.c index e661d0a9..fb5fa7d 100644 --- a/drivers/net/tulip/de4x5.c +++ b/drivers/net/tulip/de4x5.c
@@ -2114,6 +2114,7 @@ { "DEC4250", 0 }, /* 0 is the board name index... */ { "" } }; +MODULE_DEVICE_TABLE(eisa, de4x5_eisa_ids); static struct eisa_driver de4x5_eisa_driver = { .id_table = de4x5_eisa_ids,
diff --git a/drivers/net/typhoon.c b/drivers/net/typhoon.c index 8f6f6fd..d5c32e9 100644 --- a/drivers/net/typhoon.c +++ b/drivers/net/typhoon.c
@@ -333,11 +333,7 @@ #define TYPHOON_RESET_TIMEOUT_NOSLEEP ((6 * 1000000) / TYPHOON_UDELAY) #define TYPHOON_WAIT_TIMEOUT ((1000000 / 2) / TYPHOON_UDELAY) -#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 28) -#define typhoon_synchronize_irq(x) synchronize_irq() -#else #define typhoon_synchronize_irq(x) synchronize_irq(x) -#endif #if defined(NETIF_F_TSO) #define skb_tso_size(x) (skb_shinfo(x)->gso_size)
diff --git a/drivers/net/wan/Kconfig b/drivers/net/wan/Kconfig index 54b8e49..58b7efb 100644 --- a/drivers/net/wan/Kconfig +++ b/drivers/net/wan/Kconfig
@@ -154,7 +154,7 @@ If unsure, say N. config HDLC_RAW - bool "Raw HDLC support" + tristate "Raw HDLC support" depends on HDLC help Generic HDLC driver supporting raw HDLC over WAN connections. @@ -162,7 +162,7 @@ If unsure, say N. config HDLC_RAW_ETH - bool "Raw HDLC Ethernet device support" + tristate "Raw HDLC Ethernet device support" depends on HDLC help Generic HDLC driver supporting raw HDLC Ethernet device emulation @@ -173,7 +173,7 @@ If unsure, say N. config HDLC_CISCO - bool "Cisco HDLC support" + tristate "Cisco HDLC support" depends on HDLC help Generic HDLC driver supporting Cisco HDLC over WAN connections. @@ -181,7 +181,7 @@ If unsure, say N. config HDLC_FR - bool "Frame Relay support" + tristate "Frame Relay support" depends on HDLC help Generic HDLC driver supporting Frame Relay over WAN connections. @@ -189,7 +189,7 @@ If unsure, say N. config HDLC_PPP - bool "Synchronous Point-to-Point Protocol (PPP) support" + tristate "Synchronous Point-to-Point Protocol (PPP) support" depends on HDLC help Generic HDLC driver supporting PPP over WAN connections. @@ -197,7 +197,7 @@ If unsure, say N. config HDLC_X25 - bool "X.25 protocol support" + tristate "X.25 protocol support" depends on HDLC && (LAPB=m && HDLC=m || LAPB=y) help Generic HDLC driver supporting X.25 over WAN connections.
diff --git a/drivers/net/wan/Makefile b/drivers/net/wan/Makefile index 316ca68..83ec2c8 100644 --- a/drivers/net/wan/Makefile +++ b/drivers/net/wan/Makefile
@@ -9,14 +9,13 @@ cyclomx-$(CONFIG_CYCLOMX_X25) += cycx_x25.o cyclomx-objs := $(cyclomx-y) -hdlc-y := hdlc_generic.o -hdlc-$(CONFIG_HDLC_RAW) += hdlc_raw.o -hdlc-$(CONFIG_HDLC_RAW_ETH) += hdlc_raw_eth.o -hdlc-$(CONFIG_HDLC_CISCO) += hdlc_cisco.o -hdlc-$(CONFIG_HDLC_FR) += hdlc_fr.o -hdlc-$(CONFIG_HDLC_PPP) += hdlc_ppp.o -hdlc-$(CONFIG_HDLC_X25) += hdlc_x25.o -hdlc-objs := $(hdlc-y) +obj-$(CONFIG_HDLC) += hdlc.o +obj-$(CONFIG_HDLC_RAW) += hdlc_raw.o +obj-$(CONFIG_HDLC_RAW_ETH) += hdlc_raw_eth.o +obj-$(CONFIG_HDLC_CISCO) += hdlc_cisco.o +obj-$(CONFIG_HDLC_FR) += hdlc_fr.o +obj-$(CONFIG_HDLC_PPP) += hdlc_ppp.o syncppp.o +obj-$(CONFIG_HDLC_X25) += hdlc_x25.o pc300-y := pc300_drv.o pc300-$(CONFIG_PC300_MLPPP) += pc300_tty.o @@ -38,10 +37,6 @@ obj-$(CONFIG_LAPBETHER) += lapbether.o obj-$(CONFIG_SBNI) += sbni.o obj-$(CONFIG_PC300) += pc300.o -obj-$(CONFIG_HDLC) += hdlc.o -ifeq ($(CONFIG_HDLC_PPP),y) - obj-$(CONFIG_HDLC) += syncppp.o -endif obj-$(CONFIG_N2) += n2.o obj-$(CONFIG_C101) += c101.o obj-$(CONFIG_WANXL) += wanxl.o
diff --git a/drivers/net/wan/hdlc_generic.c b/drivers/net/wan/hdlc.c similarity index 67% rename from drivers/net/wan/hdlc_generic.c rename to drivers/net/wan/hdlc.c index 04ca1f7..db354e0 100644 --- a/drivers/net/wan/hdlc_generic.c +++ b/drivers/net/wan/hdlc.c
@@ -1,7 +1,7 @@ /* * Generic HDLC support routines for Linux * - * Copyright (C) 1999 - 2005 Krzysztof Halasa <khc@pm.waw.pl> + * Copyright (C) 1999 - 2006 Krzysztof Halasa <khc@pm.waw.pl> * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License @@ -17,9 +17,9 @@ * Use sethdlc utility to set line parameters, protocol and PVCs * * How does it work: - * - proto.open(), close(), start(), stop() calls are serialized. + * - proto->open(), close(), start(), stop() calls are serialized. * The order is: open, [ start, stop ... ] close ... - * - proto.start() and stop() are called with spin_lock_irq held. + * - proto->start() and stop() are called with spin_lock_irq held. */ #include <linux/module.h> @@ -38,10 +38,12 @@ #include <linux/hdlc.h> -static const char* version = "HDLC support module revision 1.19"; +static const char* version = "HDLC support module revision 1.20"; #undef DEBUG_LINK +static struct hdlc_proto *first_proto = NULL; + static int hdlc_change_mtu(struct net_device *dev, int new_mtu) { @@ -63,11 +65,11 @@ static int hdlc_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *p, struct net_device *orig_dev) { - hdlc_device *hdlc = dev_to_hdlc(dev); - if (hdlc->proto.netif_rx) - return hdlc->proto.netif_rx(skb); + struct hdlc_device_desc *desc = dev_to_desc(dev); + if (desc->netif_rx) + return desc->netif_rx(skb); - hdlc->stats.rx_dropped++; /* Shouldn't happen */ + desc->stats.rx_dropped++; /* Shouldn't happen */ dev_kfree_skb(skb); return NET_RX_DROP; } @@ -77,8 +79,8 @@ static inline void hdlc_proto_start(struct net_device *dev) { hdlc_device *hdlc = dev_to_hdlc(dev); - if (hdlc->proto.start) - return hdlc->proto.start(dev); + if (hdlc->proto->start) + return hdlc->proto->start(dev); } @@ -86,8 +88,8 @@ static inline void hdlc_proto_stop(struct net_device *dev) { hdlc_device *hdlc = dev_to_hdlc(dev); - if (hdlc->proto.stop) - return hdlc->proto.stop(dev); + if (hdlc->proto->stop) + return hdlc->proto->stop(dev); } @@ -144,15 +146,15 @@ { hdlc_device *hdlc = dev_to_hdlc(dev); #ifdef DEBUG_LINK - printk(KERN_DEBUG "hdlc_open() carrier %i open %i\n", + printk(KERN_DEBUG "%s: hdlc_open() carrier %i open %i\n", dev->name, hdlc->carrier, hdlc->open); #endif - if (hdlc->proto.id == -1) + if (hdlc->proto == NULL) return -ENOSYS; /* no protocol attached */ - if (hdlc->proto.open) { - int result = hdlc->proto.open(dev); + if (hdlc->proto->open) { + int result = hdlc->proto->open(dev); if (result) return result; } @@ -178,7 +180,7 @@ { hdlc_device *hdlc = dev_to_hdlc(dev); #ifdef DEBUG_LINK - printk(KERN_DEBUG "hdlc_close() carrier %i open %i\n", + printk(KERN_DEBUG "%s: hdlc_close() carrier %i open %i\n", dev->name, hdlc->carrier, hdlc->open); #endif @@ -190,68 +192,34 @@ spin_unlock_irq(&hdlc->state_lock); - if (hdlc->proto.close) - hdlc->proto.close(dev); + if (hdlc->proto->close) + hdlc->proto->close(dev); } -#ifndef CONFIG_HDLC_RAW -#define hdlc_raw_ioctl(dev, ifr) -ENOSYS -#endif - -#ifndef CONFIG_HDLC_RAW_ETH -#define hdlc_raw_eth_ioctl(dev, ifr) -ENOSYS -#endif - -#ifndef CONFIG_HDLC_PPP -#define hdlc_ppp_ioctl(dev, ifr) -ENOSYS -#endif - -#ifndef CONFIG_HDLC_CISCO -#define hdlc_cisco_ioctl(dev, ifr) -ENOSYS -#endif - -#ifndef CONFIG_HDLC_FR -#define hdlc_fr_ioctl(dev, ifr) -ENOSYS -#endif - -#ifndef CONFIG_HDLC_X25 -#define hdlc_x25_ioctl(dev, ifr) -ENOSYS -#endif - - int hdlc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { - hdlc_device *hdlc = dev_to_hdlc(dev); - unsigned int proto; + struct hdlc_proto *proto = first_proto; + int result; if (cmd != SIOCWANDEV) return -EINVAL; - switch(ifr->ifr_settings.type) { - case IF_PROTO_HDLC: - case IF_PROTO_HDLC_ETH: - case IF_PROTO_PPP: - case IF_PROTO_CISCO: - case IF_PROTO_FR: - case IF_PROTO_X25: - proto = ifr->ifr_settings.type; - break; - - default: - proto = hdlc->proto.id; + if (dev_to_hdlc(dev)->proto) { + result = dev_to_hdlc(dev)->proto->ioctl(dev, ifr); + if (result != -EINVAL) + return result; } - switch(proto) { - case IF_PROTO_HDLC: return hdlc_raw_ioctl(dev, ifr); - case IF_PROTO_HDLC_ETH: return hdlc_raw_eth_ioctl(dev, ifr); - case IF_PROTO_PPP: return hdlc_ppp_ioctl(dev, ifr); - case IF_PROTO_CISCO: return hdlc_cisco_ioctl(dev, ifr); - case IF_PROTO_FR: return hdlc_fr_ioctl(dev, ifr); - case IF_PROTO_X25: return hdlc_x25_ioctl(dev, ifr); - default: return -EINVAL; + /* Not handled by currently attached protocol (if any) */ + + while (proto) { + if ((result = proto->ioctl(dev, ifr)) != -EINVAL) + return result; + proto = proto->next; } + return -EINVAL; } void hdlc_setup(struct net_device *dev) @@ -267,8 +235,6 @@ dev->flags = IFF_POINTOPOINT | IFF_NOARP; - hdlc->proto.id = -1; - hdlc->proto.detach = NULL; hdlc->carrier = 1; hdlc->open = 0; spin_lock_init(&hdlc->state_lock); @@ -277,7 +243,8 @@ struct net_device *alloc_hdlcdev(void *priv) { struct net_device *dev; - dev = alloc_netdev(sizeof(hdlc_device), "hdlc%d", hdlc_setup); + dev = alloc_netdev(sizeof(struct hdlc_device_desc) + + sizeof(hdlc_device), "hdlc%d", hdlc_setup); if (dev) dev_to_hdlc(dev)->priv = priv; return dev; @@ -286,13 +253,71 @@ void unregister_hdlc_device(struct net_device *dev) { rtnl_lock(); - hdlc_proto_detach(dev_to_hdlc(dev)); unregister_netdevice(dev); + detach_hdlc_protocol(dev); rtnl_unlock(); } +int attach_hdlc_protocol(struct net_device *dev, struct hdlc_proto *proto, + int (*rx)(struct sk_buff *skb), size_t size) +{ + detach_hdlc_protocol(dev); + + if (!try_module_get(proto->module)) + return -ENOSYS; + + if (size) + if ((dev_to_hdlc(dev)->state = kmalloc(size, + GFP_KERNEL)) == NULL) { + printk(KERN_WARNING "Memory squeeze on" + " hdlc_proto_attach()\n"); + module_put(proto->module); + return -ENOBUFS; + } + dev_to_hdlc(dev)->proto = proto; + dev_to_desc(dev)->netif_rx = rx; + return 0; +} + + +void detach_hdlc_protocol(struct net_device *dev) +{ + hdlc_device *hdlc = dev_to_hdlc(dev); + + if (hdlc->proto) { + if (hdlc->proto->detach) + hdlc->proto->detach(dev); + module_put(hdlc->proto->module); + hdlc->proto = NULL; + } + kfree(hdlc->state); + hdlc->state = NULL; +} + + +void register_hdlc_protocol(struct hdlc_proto *proto) +{ + proto->next = first_proto; + first_proto = proto; +} + + +void unregister_hdlc_protocol(struct hdlc_proto *proto) +{ + struct hdlc_proto **p = &first_proto; + while (*p) { + if (*p == proto) { + *p = proto->next; + return; + } + p = &((*p)->next); + } +} + + + MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>"); MODULE_DESCRIPTION("HDLC support module"); MODULE_LICENSE("GPL v2"); @@ -303,6 +328,10 @@ EXPORT_SYMBOL(hdlc_setup); EXPORT_SYMBOL(alloc_hdlcdev); EXPORT_SYMBOL(unregister_hdlc_device); +EXPORT_SYMBOL(register_hdlc_protocol); +EXPORT_SYMBOL(unregister_hdlc_protocol); +EXPORT_SYMBOL(attach_hdlc_protocol); +EXPORT_SYMBOL(detach_hdlc_protocol); static struct packet_type hdlc_packet_type = { .type = __constant_htons(ETH_P_HDLC),
diff --git a/drivers/net/wan/hdlc_cisco.c b/drivers/net/wan/hdlc_cisco.c index f289dab..7ec2b2f 100644 --- a/drivers/net/wan/hdlc_cisco.c +++ b/drivers/net/wan/hdlc_cisco.c
@@ -2,7 +2,7 @@ * Generic HDLC support routines for Linux * Cisco HDLC support * - * Copyright (C) 2000 - 2003 Krzysztof Halasa <khc@pm.waw.pl> + * Copyright (C) 2000 - 2006 Krzysztof Halasa <khc@pm.waw.pl> * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License @@ -34,17 +34,56 @@ #define CISCO_KEEPALIVE_REQ 2 /* Cisco keepalive request */ +struct hdlc_header { + u8 address; + u8 control; + u16 protocol; +}__attribute__ ((packed)); + + +struct cisco_packet { + u32 type; /* code */ + u32 par1; + u32 par2; + u16 rel; /* reliability */ + u32 time; +}__attribute__ ((packed)); +#define CISCO_PACKET_LEN 18 +#define CISCO_BIG_PACKET_LEN 20 + + +struct cisco_state { + cisco_proto settings; + + struct timer_list timer; + unsigned long last_poll; + int up; + int request_sent; + u32 txseq; /* TX sequence number */ + u32 rxseq; /* RX sequence number */ +}; + + +static int cisco_ioctl(struct net_device *dev, struct ifreq *ifr); + + +static inline struct cisco_state * state(hdlc_device *hdlc) +{ + return(struct cisco_state *)(hdlc->state); +} + + static int cisco_hard_header(struct sk_buff *skb, struct net_device *dev, u16 type, void *daddr, void *saddr, unsigned int len) { - hdlc_header *data; + struct hdlc_header *data; #ifdef DEBUG_HARD_HEADER printk(KERN_DEBUG "%s: cisco_hard_header called\n", dev->name); #endif - skb_push(skb, sizeof(hdlc_header)); - data = (hdlc_header*)skb->data; + skb_push(skb, sizeof(struct hdlc_header)); + data = (struct hdlc_header*)skb->data; if (type == CISCO_KEEPALIVE) data->address = CISCO_MULTICAST; else @@ -52,7 +91,7 @@ data->control = 0; data->protocol = htons(type); - return sizeof(hdlc_header); + return sizeof(struct hdlc_header); } @@ -61,9 +100,10 @@ u32 par1, u32 par2) { struct sk_buff *skb; - cisco_packet *data; + struct cisco_packet *data; - skb = dev_alloc_skb(sizeof(hdlc_header) + sizeof(cisco_packet)); + skb = dev_alloc_skb(sizeof(struct hdlc_header) + + sizeof(struct cisco_packet)); if (!skb) { printk(KERN_WARNING "%s: Memory squeeze on cisco_keepalive_send()\n", @@ -72,7 +112,7 @@ } skb_reserve(skb, 4); cisco_hard_header(skb, dev, CISCO_KEEPALIVE, NULL, NULL, 0); - data = (cisco_packet*)(skb->data + 4); + data = (struct cisco_packet*)(skb->data + 4); data->type = htonl(type); data->par1 = htonl(par1); @@ -81,7 +121,7 @@ /* we will need do_div here if 1000 % HZ != 0 */ data->time = htonl((jiffies - INITIAL_JIFFIES) * (1000 / HZ)); - skb_put(skb, sizeof(cisco_packet)); + skb_put(skb, sizeof(struct cisco_packet)); skb->priority = TC_PRIO_CONTROL; skb->dev = dev; skb->nh.raw = skb->data; @@ -93,9 +133,9 @@ static __be16 cisco_type_trans(struct sk_buff *skb, struct net_device *dev) { - hdlc_header *data = (hdlc_header*)skb->data; + struct hdlc_header *data = (struct hdlc_header*)skb->data; - if (skb->len < sizeof(hdlc_header)) + if (skb->len < sizeof(struct hdlc_header)) return __constant_htons(ETH_P_HDLC); if (data->address != CISCO_MULTICAST && @@ -106,7 +146,7 @@ case __constant_htons(ETH_P_IP): case __constant_htons(ETH_P_IPX): case __constant_htons(ETH_P_IPV6): - skb_pull(skb, sizeof(hdlc_header)); + skb_pull(skb, sizeof(struct hdlc_header)); return data->protocol; default: return __constant_htons(ETH_P_HDLC); @@ -118,12 +158,12 @@ { struct net_device *dev = skb->dev; hdlc_device *hdlc = dev_to_hdlc(dev); - hdlc_header *data = (hdlc_header*)skb->data; - cisco_packet *cisco_data; + struct hdlc_header *data = (struct hdlc_header*)skb->data; + struct cisco_packet *cisco_data; struct in_device *in_dev; u32 addr, mask; - if (skb->len < sizeof(hdlc_header)) + if (skb->len < sizeof(struct hdlc_header)) goto rx_error; if (data->address != CISCO_MULTICAST && @@ -137,15 +177,17 @@ return NET_RX_SUCCESS; case CISCO_KEEPALIVE: - if (skb->len != sizeof(hdlc_header) + CISCO_PACKET_LEN && - skb->len != sizeof(hdlc_header) + CISCO_BIG_PACKET_LEN) { - printk(KERN_INFO "%s: Invalid length of Cisco " - "control packet (%d bytes)\n", - dev->name, skb->len); + if ((skb->len != sizeof(struct hdlc_header) + + CISCO_PACKET_LEN) && + (skb->len != sizeof(struct hdlc_header) + + CISCO_BIG_PACKET_LEN)) { + printk(KERN_INFO "%s: Invalid length of Cisco control" + " packet (%d bytes)\n", dev->name, skb->len); goto rx_error; } - cisco_data = (cisco_packet*)(skb->data + sizeof(hdlc_header)); + cisco_data = (struct cisco_packet*)(skb->data + sizeof + (struct hdlc_header)); switch(ntohl (cisco_data->type)) { case CISCO_ADDR_REQ: /* Stolen from syncppp.c :-) */ @@ -178,11 +220,11 @@ goto rx_error; case CISCO_KEEPALIVE_REQ: - hdlc->state.cisco.rxseq = ntohl(cisco_data->par1); - if (hdlc->state.cisco.request_sent && - ntohl(cisco_data->par2)==hdlc->state.cisco.txseq) { - hdlc->state.cisco.last_poll = jiffies; - if (!hdlc->state.cisco.up) { + state(hdlc)->rxseq = ntohl(cisco_data->par1); + if (state(hdlc)->request_sent && + ntohl(cisco_data->par2) == state(hdlc)->txseq) { + state(hdlc)->last_poll = jiffies; + if (!state(hdlc)->up) { u32 sec, min, hrs, days; sec = ntohl(cisco_data->time) / 1000; min = sec / 60; sec -= min * 60; @@ -193,7 +235,7 @@ dev->name, days, hrs, min, sec); netif_dormant_off(dev); - hdlc->state.cisco.up = 1; + state(hdlc)->up = 1; } } @@ -208,7 +250,7 @@ return NET_RX_DROP; rx_error: - hdlc->stats.rx_errors++; /* Mark error */ + dev_to_desc(dev)->stats.rx_errors++; /* Mark error */ dev_kfree_skb_any(skb); return NET_RX_DROP; } @@ -220,23 +262,22 @@ struct net_device *dev = (struct net_device *)arg; hdlc_device *hdlc = dev_to_hdlc(dev); - if (hdlc->state.cisco.up && - time_after(jiffies, hdlc->state.cisco.last_poll + - hdlc->state.cisco.settings.timeout * HZ)) { - hdlc->state.cisco.up = 0; + if (state(hdlc)->up && + time_after(jiffies, state(hdlc)->last_poll + + state(hdlc)->settings.timeout * HZ)) { + state(hdlc)->up = 0; printk(KERN_INFO "%s: Link down\n", dev->name); netif_dormant_on(dev); } - cisco_keepalive_send(dev, CISCO_KEEPALIVE_REQ, - ++hdlc->state.cisco.txseq, - hdlc->state.cisco.rxseq); - hdlc->state.cisco.request_sent = 1; - hdlc->state.cisco.timer.expires = jiffies + - hdlc->state.cisco.settings.interval * HZ; - hdlc->state.cisco.timer.function = cisco_timer; - hdlc->state.cisco.timer.data = arg; - add_timer(&hdlc->state.cisco.timer); + cisco_keepalive_send(dev, CISCO_KEEPALIVE_REQ, ++state(hdlc)->txseq, + state(hdlc)->rxseq); + state(hdlc)->request_sent = 1; + state(hdlc)->timer.expires = jiffies + + state(hdlc)->settings.interval * HZ; + state(hdlc)->timer.function = cisco_timer; + state(hdlc)->timer.data = arg; + add_timer(&state(hdlc)->timer); } @@ -244,15 +285,15 @@ static void cisco_start(struct net_device *dev) { hdlc_device *hdlc = dev_to_hdlc(dev); - hdlc->state.cisco.up = 0; - hdlc->state.cisco.request_sent = 0; - hdlc->state.cisco.txseq = hdlc->state.cisco.rxseq = 0; + state(hdlc)->up = 0; + state(hdlc)->request_sent = 0; + state(hdlc)->txseq = state(hdlc)->rxseq = 0; - init_timer(&hdlc->state.cisco.timer); - hdlc->state.cisco.timer.expires = jiffies + HZ; /*First poll after 1s*/ - hdlc->state.cisco.timer.function = cisco_timer; - hdlc->state.cisco.timer.data = (unsigned long)dev; - add_timer(&hdlc->state.cisco.timer); + init_timer(&state(hdlc)->timer); + state(hdlc)->timer.expires = jiffies + HZ; /*First poll after 1s*/ + state(hdlc)->timer.function = cisco_timer; + state(hdlc)->timer.data = (unsigned long)dev; + add_timer(&state(hdlc)->timer); } @@ -260,15 +301,24 @@ static void cisco_stop(struct net_device *dev) { hdlc_device *hdlc = dev_to_hdlc(dev); - del_timer_sync(&hdlc->state.cisco.timer); + del_timer_sync(&state(hdlc)->timer); netif_dormant_on(dev); - hdlc->state.cisco.up = 0; - hdlc->state.cisco.request_sent = 0; + state(hdlc)->up = 0; + state(hdlc)->request_sent = 0; } -int hdlc_cisco_ioctl(struct net_device *dev, struct ifreq *ifr) +static struct hdlc_proto proto = { + .start = cisco_start, + .stop = cisco_stop, + .type_trans = cisco_type_trans, + .ioctl = cisco_ioctl, + .module = THIS_MODULE, +}; + + +static int cisco_ioctl(struct net_device *dev, struct ifreq *ifr) { cisco_proto __user *cisco_s = ifr->ifr_settings.ifs_ifsu.cisco; const size_t size = sizeof(cisco_proto); @@ -278,12 +328,14 @@ switch (ifr->ifr_settings.type) { case IF_GET_PROTO: + if (dev_to_hdlc(dev)->proto != &proto) + return -EINVAL; ifr->ifr_settings.type = IF_PROTO_CISCO; if (ifr->ifr_settings.size < size) { ifr->ifr_settings.size = size; /* data size wanted */ return -ENOBUFS; } - if (copy_to_user(cisco_s, &hdlc->state.cisco.settings, size)) + if (copy_to_user(cisco_s, &state(hdlc)->settings, size)) return -EFAULT; return 0; @@ -302,19 +354,15 @@ return -EINVAL; result=hdlc->attach(dev, ENCODING_NRZ,PARITY_CRC16_PR1_CCITT); - if (result) return result; - hdlc_proto_detach(hdlc); - memcpy(&hdlc->state.cisco.settings, &new_settings, size); - memset(&hdlc->proto, 0, sizeof(hdlc->proto)); + result = attach_hdlc_protocol(dev, &proto, cisco_rx, + sizeof(struct cisco_state)); + if (result) + return result; - hdlc->proto.start = cisco_start; - hdlc->proto.stop = cisco_stop; - hdlc->proto.netif_rx = cisco_rx; - hdlc->proto.type_trans = cisco_type_trans; - hdlc->proto.id = IF_PROTO_CISCO; + memcpy(&state(hdlc)->settings, &new_settings, size); dev->hard_start_xmit = hdlc->xmit; dev->hard_header = cisco_hard_header; dev->hard_header_cache = NULL; @@ -327,3 +375,25 @@ return -EINVAL; } + + +static int __init mod_init(void) +{ + register_hdlc_protocol(&proto); + return 0; +} + + + +static void __exit mod_exit(void) +{ + unregister_hdlc_protocol(&proto); +} + + +module_init(mod_init); +module_exit(mod_exit); + +MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>"); +MODULE_DESCRIPTION("Cisco HDLC protocol support for generic HDLC"); +MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c index 7bb737b..b45ab68 100644 --- a/drivers/net/wan/hdlc_fr.c +++ b/drivers/net/wan/hdlc_fr.c
@@ -2,7 +2,7 @@ * Generic HDLC support routines for Linux * Frame Relay support * - * Copyright (C) 1999 - 2005 Krzysztof Halasa <khc@pm.waw.pl> + * Copyright (C) 1999 - 2006 Krzysztof Halasa <khc@pm.waw.pl> * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License @@ -52,6 +52,8 @@ #undef DEBUG_PKT #undef DEBUG_ECN #undef DEBUG_LINK +#undef DEBUG_PROTO +#undef DEBUG_PVC #define FR_UI 0x03 #define FR_PAD 0x00 @@ -115,13 +117,53 @@ }__attribute__ ((packed)) fr_hdr; +typedef struct pvc_device_struct { + struct net_device *frad; + struct net_device *main; + struct net_device *ether; /* bridged Ethernet interface */ + struct pvc_device_struct *next; /* Sorted in ascending DLCI order */ + int dlci; + int open_count; + + struct { + unsigned int new: 1; + unsigned int active: 1; + unsigned int exist: 1; + unsigned int deleted: 1; + unsigned int fecn: 1; + unsigned int becn: 1; + unsigned int bandwidth; /* Cisco LMI reporting only */ + }state; +}pvc_device; + + +struct frad_state { + fr_proto settings; + pvc_device *first_pvc; + int dce_pvc_count; + + struct timer_list timer; + unsigned long last_poll; + int reliable; + int dce_changed; + int request; + int fullrep_sent; + u32 last_errors; /* last errors bit list */ + u8 n391cnt; + u8 txseq; /* TX sequence number */ + u8 rxseq; /* RX sequence number */ +}; + + +static int fr_ioctl(struct net_device *dev, struct ifreq *ifr); + + static inline u16 q922_to_dlci(u8 *hdr) { return ((hdr[0] & 0xFC) << 2) | ((hdr[1] & 0xF0) >> 4); } - static inline void dlci_to_q922(u8 *hdr, u16 dlci) { hdr[0] = (dlci >> 2) & 0xFC; @@ -129,10 +171,21 @@ } +static inline struct frad_state * state(hdlc_device *hdlc) +{ + return(struct frad_state *)(hdlc->state); +} + + +static __inline__ pvc_device* dev_to_pvc(struct net_device *dev) +{ + return dev->priv; +} + static inline pvc_device* find_pvc(hdlc_device *hdlc, u16 dlci) { - pvc_device *pvc = hdlc->state.fr.first_pvc; + pvc_device *pvc = state(hdlc)->first_pvc; while (pvc) { if (pvc->dlci == dlci) @@ -146,10 +199,10 @@ } -static inline pvc_device* add_pvc(struct net_device *dev, u16 dlci) +static pvc_device* add_pvc(struct net_device *dev, u16 dlci) { hdlc_device *hdlc = dev_to_hdlc(dev); - pvc_device *pvc, **pvc_p = &hdlc->state.fr.first_pvc; + pvc_device *pvc, **pvc_p = &state(hdlc)->first_pvc; while (*pvc_p) { if ((*pvc_p)->dlci == dlci) @@ -160,12 +213,15 @@ } pvc = kmalloc(sizeof(pvc_device), GFP_ATOMIC); +#ifdef DEBUG_PVC + printk(KERN_DEBUG "add_pvc: allocated pvc %p, frad %p\n", pvc, dev); +#endif if (!pvc) return NULL; memset(pvc, 0, sizeof(pvc_device)); pvc->dlci = dlci; - pvc->master = dev; + pvc->frad = dev; pvc->next = *pvc_p; /* Put it in the chain */ *pvc_p = pvc; return pvc; @@ -174,7 +230,7 @@ static inline int pvc_is_used(pvc_device *pvc) { - return pvc->main != NULL || pvc->ether != NULL; + return pvc->main || pvc->ether; } @@ -200,11 +256,14 @@ static inline void delete_unused_pvcs(hdlc_device *hdlc) { - pvc_device **pvc_p = &hdlc->state.fr.first_pvc; + pvc_device **pvc_p = &state(hdlc)->first_pvc; while (*pvc_p) { if (!pvc_is_used(*pvc_p)) { pvc_device *pvc = *pvc_p; +#ifdef DEBUG_PVC + printk(KERN_DEBUG "freeing unused pvc: %p\n", pvc); +#endif *pvc_p = pvc->next; kfree(pvc); continue; @@ -295,16 +354,16 @@ { pvc_device *pvc = dev_to_pvc(dev); - if ((pvc->master->flags & IFF_UP) == 0) - return -EIO; /* Master must be UP in order to activate PVC */ + if ((pvc->frad->flags & IFF_UP) == 0) + return -EIO; /* Frad must be UP in order to activate PVC */ if (pvc->open_count++ == 0) { - hdlc_device *hdlc = dev_to_hdlc(pvc->master); - if (hdlc->state.fr.settings.lmi == LMI_NONE) - pvc->state.active = netif_carrier_ok(pvc->master); + hdlc_device *hdlc = dev_to_hdlc(pvc->frad); + if (state(hdlc)->settings.lmi == LMI_NONE) + pvc->state.active = netif_carrier_ok(pvc->frad); pvc_carrier(pvc->state.active, pvc); - hdlc->state.fr.dce_changed = 1; + state(hdlc)->dce_changed = 1; } return 0; } @@ -316,12 +375,12 @@ pvc_device *pvc = dev_to_pvc(dev); if (--pvc->open_count == 0) { - hdlc_device *hdlc = dev_to_hdlc(pvc->master); - if (hdlc->state.fr.settings.lmi == LMI_NONE) + hdlc_device *hdlc = dev_to_hdlc(pvc->frad); + if (state(hdlc)->settings.lmi == LMI_NONE) pvc->state.active = 0; - if (hdlc->state.fr.settings.dce) { - hdlc->state.fr.dce_changed = 1; + if (state(hdlc)->settings.dce) { + state(hdlc)->dce_changed = 1; pvc->state.active = 0; } } @@ -348,7 +407,7 @@ } info.dlci = pvc->dlci; - memcpy(info.master, pvc->master->name, IFNAMSIZ); + memcpy(info.master, pvc->frad->name, IFNAMSIZ); if (copy_to_user(ifr->ifr_settings.ifs_ifsu.fr_pvc_info, &info, sizeof(info))) return -EFAULT; @@ -361,7 +420,7 @@ static inline struct net_device_stats *pvc_get_stats(struct net_device *dev) { - return netdev_priv(dev); + return &dev_to_desc(dev)->stats; } @@ -393,7 +452,7 @@ stats->tx_packets++; if (pvc->state.fecn) /* TX Congestion counter */ stats->tx_compressed++; - skb->dev = pvc->master; + skb->dev = pvc->frad; dev_queue_xmit(skb); return 0; } @@ -419,7 +478,7 @@ static inline void fr_log_dlci_active(pvc_device *pvc) { printk(KERN_INFO "%s: DLCI %d [%s%s%s]%s %s\n", - pvc->master->name, + pvc->frad->name, pvc->dlci, pvc->main ? pvc->main->name : "", pvc->main && pvc->ether ? " " : "", @@ -438,21 +497,20 @@ } - static void fr_lmi_send(struct net_device *dev, int fullrep) { hdlc_device *hdlc = dev_to_hdlc(dev); struct sk_buff *skb; - pvc_device *pvc = hdlc->state.fr.first_pvc; - int lmi = hdlc->state.fr.settings.lmi; - int dce = hdlc->state.fr.settings.dce; + pvc_device *pvc = state(hdlc)->first_pvc; + int lmi = state(hdlc)->settings.lmi; + int dce = state(hdlc)->settings.dce; int len = lmi == LMI_ANSI ? LMI_ANSI_LENGTH : LMI_CCITT_CISCO_LENGTH; int stat_len = (lmi == LMI_CISCO) ? 6 : 3; u8 *data; int i = 0; if (dce && fullrep) { - len += hdlc->state.fr.dce_pvc_count * (2 + stat_len); + len += state(hdlc)->dce_pvc_count * (2 + stat_len); if (len > HDLC_MAX_MRU) { printk(KERN_WARNING "%s: Too many PVCs while sending " "LMI full report\n", dev->name); @@ -486,8 +544,9 @@ data[i++] = fullrep ? LMI_FULLREP : LMI_INTEGRITY; data[i++] = lmi == LMI_CCITT ? LMI_CCITT_ALIVE : LMI_ANSI_CISCO_ALIVE; data[i++] = LMI_INTEG_LEN; - data[i++] = hdlc->state.fr.txseq =fr_lmi_nextseq(hdlc->state.fr.txseq); - data[i++] = hdlc->state.fr.rxseq; + data[i++] = state(hdlc)->txseq = + fr_lmi_nextseq(state(hdlc)->txseq); + data[i++] = state(hdlc)->rxseq; if (dce && fullrep) { while (pvc) { @@ -496,7 +555,7 @@ data[i++] = stat_len; /* LMI start/restart */ - if (hdlc->state.fr.reliable && !pvc->state.exist) { + if (state(hdlc)->reliable && !pvc->state.exist) { pvc->state.exist = pvc->state.new = 1; fr_log_dlci_active(pvc); } @@ -541,15 +600,15 @@ static void fr_set_link_state(int reliable, struct net_device *dev) { hdlc_device *hdlc = dev_to_hdlc(dev); - pvc_device *pvc = hdlc->state.fr.first_pvc; + pvc_device *pvc = state(hdlc)->first_pvc; - hdlc->state.fr.reliable = reliable; + state(hdlc)->reliable = reliable; if (reliable) { netif_dormant_off(dev); - hdlc->state.fr.n391cnt = 0; /* Request full status */ - hdlc->state.fr.dce_changed = 1; + state(hdlc)->n391cnt = 0; /* Request full status */ + state(hdlc)->dce_changed = 1; - if (hdlc->state.fr.settings.lmi == LMI_NONE) { + if (state(hdlc)->settings.lmi == LMI_NONE) { while (pvc) { /* Activate all PVCs */ pvc_carrier(1, pvc); pvc->state.exist = pvc->state.active = 1; @@ -563,7 +622,7 @@ pvc_carrier(0, pvc); pvc->state.exist = pvc->state.active = 0; pvc->state.new = 0; - if (!hdlc->state.fr.settings.dce) + if (!state(hdlc)->settings.dce) pvc->state.bandwidth = 0; pvc = pvc->next; } @@ -571,7 +630,6 @@ } - static void fr_timer(unsigned long arg) { struct net_device *dev = (struct net_device *)arg; @@ -579,62 +637,61 @@ int i, cnt = 0, reliable; u32 list; - if (hdlc->state.fr.settings.dce) { - reliable = hdlc->state.fr.request && - time_before(jiffies, hdlc->state.fr.last_poll + - hdlc->state.fr.settings.t392 * HZ); - hdlc->state.fr.request = 0; + if (state(hdlc)->settings.dce) { + reliable = state(hdlc)->request && + time_before(jiffies, state(hdlc)->last_poll + + state(hdlc)->settings.t392 * HZ); + state(hdlc)->request = 0; } else { - hdlc->state.fr.last_errors <<= 1; /* Shift the list */ - if (hdlc->state.fr.request) { - if (hdlc->state.fr.reliable) + state(hdlc)->last_errors <<= 1; /* Shift the list */ + if (state(hdlc)->request) { + if (state(hdlc)->reliable) printk(KERN_INFO "%s: No LMI status reply " "received\n", dev->name); - hdlc->state.fr.last_errors |= 1; + state(hdlc)->last_errors |= 1; } - list = hdlc->state.fr.last_errors; - for (i = 0; i < hdlc->state.fr.settings.n393; i++, list >>= 1) + list = state(hdlc)->last_errors; + for (i = 0; i < state(hdlc)->settings.n393; i++, list >>= 1) cnt += (list & 1); /* errors count */ - reliable = (cnt < hdlc->state.fr.settings.n392); + reliable = (cnt < state(hdlc)->settings.n392); } - if (hdlc->state.fr.reliable != reliable) { + if (state(hdlc)->reliable != reliable) { printk(KERN_INFO "%s: Link %sreliable\n", dev->name, reliable ? "" : "un"); fr_set_link_state(reliable, dev); } - if (hdlc->state.fr.settings.dce) - hdlc->state.fr.timer.expires = jiffies + - hdlc->state.fr.settings.t392 * HZ; + if (state(hdlc)->settings.dce) + state(hdlc)->timer.expires = jiffies + + state(hdlc)->settings.t392 * HZ; else { - if (hdlc->state.fr.n391cnt) - hdlc->state.fr.n391cnt--; + if (state(hdlc)->n391cnt) + state(hdlc)->n391cnt--; - fr_lmi_send(dev, hdlc->state.fr.n391cnt == 0); + fr_lmi_send(dev, state(hdlc)->n391cnt == 0); - hdlc->state.fr.last_poll = jiffies; - hdlc->state.fr.request = 1; - hdlc->state.fr.timer.expires = jiffies + - hdlc->state.fr.settings.t391 * HZ; + state(hdlc)->last_poll = jiffies; + state(hdlc)->request = 1; + state(hdlc)->timer.expires = jiffies + + state(hdlc)->settings.t391 * HZ; } - hdlc->state.fr.timer.function = fr_timer; - hdlc->state.fr.timer.data = arg; - add_timer(&hdlc->state.fr.timer); + state(hdlc)->timer.function = fr_timer; + state(hdlc)->timer.data = arg; + add_timer(&state(hdlc)->timer); } - static int fr_lmi_recv(struct net_device *dev, struct sk_buff *skb) { hdlc_device *hdlc = dev_to_hdlc(dev); pvc_device *pvc; u8 rxseq, txseq; - int lmi = hdlc->state.fr.settings.lmi; - int dce = hdlc->state.fr.settings.dce; + int lmi = state(hdlc)->settings.lmi; + int dce = state(hdlc)->settings.dce; int stat_len = (lmi == LMI_CISCO) ? 6 : 3, reptype, error, no_ram, i; if (skb->len < (lmi == LMI_ANSI ? LMI_ANSI_LENGTH : @@ -645,8 +702,8 @@ if (skb->data[3] != (lmi == LMI_CISCO ? NLPID_CISCO_LMI : NLPID_CCITT_ANSI_LMI)) { - printk(KERN_INFO "%s: Received non-LMI frame with LMI" - " DLCI\n", dev->name); + printk(KERN_INFO "%s: Received non-LMI frame with LMI DLCI\n", + dev->name); return 1; } @@ -706,53 +763,53 @@ } i++; - hdlc->state.fr.rxseq = skb->data[i++]; /* TX sequence from peer */ + state(hdlc)->rxseq = skb->data[i++]; /* TX sequence from peer */ rxseq = skb->data[i++]; /* Should confirm our sequence */ - txseq = hdlc->state.fr.txseq; + txseq = state(hdlc)->txseq; if (dce) - hdlc->state.fr.last_poll = jiffies; + state(hdlc)->last_poll = jiffies; error = 0; - if (!hdlc->state.fr.reliable) + if (!state(hdlc)->reliable) error = 1; - if (rxseq == 0 || rxseq != txseq) { - hdlc->state.fr.n391cnt = 0; /* Ask for full report next time */ + if (rxseq == 0 || rxseq != txseq) { /* Ask for full report next time */ + state(hdlc)->n391cnt = 0; error = 1; } if (dce) { - if (hdlc->state.fr.fullrep_sent && !error) { + if (state(hdlc)->fullrep_sent && !error) { /* Stop sending full report - the last one has been confirmed by DTE */ - hdlc->state.fr.fullrep_sent = 0; - pvc = hdlc->state.fr.first_pvc; + state(hdlc)->fullrep_sent = 0; + pvc = state(hdlc)->first_pvc; while (pvc) { if (pvc->state.new) { pvc->state.new = 0; /* Tell DTE that new PVC is now active */ - hdlc->state.fr.dce_changed = 1; + state(hdlc)->dce_changed = 1; } pvc = pvc->next; } } - if (hdlc->state.fr.dce_changed) { + if (state(hdlc)->dce_changed) { reptype = LMI_FULLREP; - hdlc->state.fr.fullrep_sent = 1; - hdlc->state.fr.dce_changed = 0; + state(hdlc)->fullrep_sent = 1; + state(hdlc)->dce_changed = 0; } - hdlc->state.fr.request = 1; /* got request */ + state(hdlc)->request = 1; /* got request */ fr_lmi_send(dev, reptype == LMI_FULLREP ? 1 : 0); return 0; } /* DTE */ - hdlc->state.fr.request = 0; /* got response, no request pending */ + state(hdlc)->request = 0; /* got response, no request pending */ if (error) return 0; @@ -760,7 +817,7 @@ if (reptype != LMI_FULLREP) return 0; - pvc = hdlc->state.fr.first_pvc; + pvc = state(hdlc)->first_pvc; while (pvc) { pvc->state.deleted = 1; @@ -827,7 +884,7 @@ i += stat_len; } - pvc = hdlc->state.fr.first_pvc; + pvc = state(hdlc)->first_pvc; while (pvc) { if (pvc->state.deleted && pvc->state.exist) { @@ -841,17 +898,16 @@ } /* Next full report after N391 polls */ - hdlc->state.fr.n391cnt = hdlc->state.fr.settings.n391; + state(hdlc)->n391cnt = state(hdlc)->settings.n391; return 0; } - static int fr_rx(struct sk_buff *skb) { - struct net_device *ndev = skb->dev; - hdlc_device *hdlc = dev_to_hdlc(ndev); + struct net_device *frad = skb->dev; + hdlc_device *hdlc = dev_to_hdlc(frad); fr_hdr *fh = (fr_hdr*)skb->data; u8 *data = skb->data; u16 dlci; @@ -864,11 +920,11 @@ dlci = q922_to_dlci(skb->data); if ((dlci == LMI_CCITT_ANSI_DLCI && - (hdlc->state.fr.settings.lmi == LMI_ANSI || - hdlc->state.fr.settings.lmi == LMI_CCITT)) || + (state(hdlc)->settings.lmi == LMI_ANSI || + state(hdlc)->settings.lmi == LMI_CCITT)) || (dlci == LMI_CISCO_DLCI && - hdlc->state.fr.settings.lmi == LMI_CISCO)) { - if (fr_lmi_recv(ndev, skb)) + state(hdlc)->settings.lmi == LMI_CISCO)) { + if (fr_lmi_recv(frad, skb)) goto rx_error; dev_kfree_skb_any(skb); return NET_RX_SUCCESS; @@ -878,7 +934,7 @@ if (!pvc) { #ifdef DEBUG_PKT printk(KERN_INFO "%s: No PVC for received frame's DLCI %d\n", - ndev->name, dlci); + frad->name, dlci); #endif dev_kfree_skb_any(skb); return NET_RX_DROP; @@ -886,7 +942,7 @@ if (pvc->state.fecn != fh->fecn) { #ifdef DEBUG_ECN - printk(KERN_DEBUG "%s: DLCI %d FECN O%s\n", ndev->name, + printk(KERN_DEBUG "%s: DLCI %d FECN O%s\n", frad->name, dlci, fh->fecn ? "N" : "FF"); #endif pvc->state.fecn ^= 1; @@ -894,7 +950,7 @@ if (pvc->state.becn != fh->becn) { #ifdef DEBUG_ECN - printk(KERN_DEBUG "%s: DLCI %d BECN O%s\n", ndev->name, + printk(KERN_DEBUG "%s: DLCI %d BECN O%s\n", frad->name, dlci, fh->becn ? "N" : "FF"); #endif pvc->state.becn ^= 1; @@ -902,7 +958,7 @@ if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) { - hdlc->stats.rx_dropped++; + dev_to_desc(frad)->stats.rx_dropped++; return NET_RX_DROP; } @@ -938,13 +994,13 @@ default: printk(KERN_INFO "%s: Unsupported protocol, OUI=%x " - "PID=%x\n", ndev->name, oui, pid); + "PID=%x\n", frad->name, oui, pid); dev_kfree_skb_any(skb); return NET_RX_DROP; } } else { printk(KERN_INFO "%s: Unsupported protocol, NLPID=%x " - "length = %i\n", ndev->name, data[3], skb->len); + "length = %i\n", frad->name, data[3], skb->len); dev_kfree_skb_any(skb); return NET_RX_DROP; } @@ -964,7 +1020,7 @@ } rx_error: - hdlc->stats.rx_errors++; /* Mark error */ + dev_to_desc(frad)->stats.rx_errors++; /* Mark error */ dev_kfree_skb_any(skb); return NET_RX_DROP; } @@ -977,44 +1033,42 @@ #ifdef DEBUG_LINK printk(KERN_DEBUG "fr_start\n"); #endif - if (hdlc->state.fr.settings.lmi != LMI_NONE) { - hdlc->state.fr.reliable = 0; - hdlc->state.fr.dce_changed = 1; - hdlc->state.fr.request = 0; - hdlc->state.fr.fullrep_sent = 0; - hdlc->state.fr.last_errors = 0xFFFFFFFF; - hdlc->state.fr.n391cnt = 0; - hdlc->state.fr.txseq = hdlc->state.fr.rxseq = 0; + if (state(hdlc)->settings.lmi != LMI_NONE) { + state(hdlc)->reliable = 0; + state(hdlc)->dce_changed = 1; + state(hdlc)->request = 0; + state(hdlc)->fullrep_sent = 0; + state(hdlc)->last_errors = 0xFFFFFFFF; + state(hdlc)->n391cnt = 0; + state(hdlc)->txseq = state(hdlc)->rxseq = 0; - init_timer(&hdlc->state.fr.timer); + init_timer(&state(hdlc)->timer); /* First poll after 1 s */ - hdlc->state.fr.timer.expires = jiffies + HZ; - hdlc->state.fr.timer.function = fr_timer; - hdlc->state.fr.timer.data = (unsigned long)dev; - add_timer(&hdlc->state.fr.timer); + state(hdlc)->timer.expires = jiffies + HZ; + state(hdlc)->timer.function = fr_timer; + state(hdlc)->timer.data = (unsigned long)dev; + add_timer(&state(hdlc)->timer); } else fr_set_link_state(1, dev); } - static void fr_stop(struct net_device *dev) { hdlc_device *hdlc = dev_to_hdlc(dev); #ifdef DEBUG_LINK printk(KERN_DEBUG "fr_stop\n"); #endif - if (hdlc->state.fr.settings.lmi != LMI_NONE) - del_timer_sync(&hdlc->state.fr.timer); + if (state(hdlc)->settings.lmi != LMI_NONE) + del_timer_sync(&state(hdlc)->timer); fr_set_link_state(0, dev); } - static void fr_close(struct net_device *dev) { hdlc_device *hdlc = dev_to_hdlc(dev); - pvc_device *pvc = hdlc->state.fr.first_pvc; + pvc_device *pvc = state(hdlc)->first_pvc; while (pvc) { /* Shutdown all PVCs for this FRAD */ if (pvc->main) @@ -1025,7 +1079,8 @@ } } -static void dlci_setup(struct net_device *dev) + +static void pvc_setup(struct net_device *dev) { dev->type = ARPHRD_DLCI; dev->flags = IFF_POINTOPOINT; @@ -1033,9 +1088,9 @@ dev->addr_len = 2; } -static int fr_add_pvc(struct net_device *master, unsigned int dlci, int type) +static int fr_add_pvc(struct net_device *frad, unsigned int dlci, int type) { - hdlc_device *hdlc = dev_to_hdlc(master); + hdlc_device *hdlc = dev_to_hdlc(frad); pvc_device *pvc = NULL; struct net_device *dev; int result, used; @@ -1044,9 +1099,9 @@ if (type == ARPHRD_ETHER) prefix = "pvceth%d"; - if ((pvc = add_pvc(master, dlci)) == NULL) { + if ((pvc = add_pvc(frad, dlci)) == NULL) { printk(KERN_WARNING "%s: Memory squeeze on fr_add_pvc()\n", - master->name); + frad->name); return -ENOBUFS; } @@ -1060,11 +1115,11 @@ "pvceth%d", ether_setup); else dev = alloc_netdev(sizeof(struct net_device_stats), - "pvc%d", dlci_setup); + "pvc%d", pvc_setup); if (!dev) { printk(KERN_WARNING "%s: Memory squeeze on fr_pvc()\n", - master->name); + frad->name); delete_unused_pvcs(hdlc); return -ENOBUFS; } @@ -1102,8 +1157,8 @@ dev->destructor = free_netdev; *get_dev_p(pvc, type) = dev; if (!used) { - hdlc->state.fr.dce_changed = 1; - hdlc->state.fr.dce_pvc_count++; + state(hdlc)->dce_changed = 1; + state(hdlc)->dce_pvc_count++; } return 0; } @@ -1128,8 +1183,8 @@ *get_dev_p(pvc, type) = NULL; if (!pvc_is_used(pvc)) { - hdlc->state.fr.dce_pvc_count--; - hdlc->state.fr.dce_changed = 1; + state(hdlc)->dce_pvc_count--; + state(hdlc)->dce_changed = 1; } delete_unused_pvcs(hdlc); return 0; @@ -1137,14 +1192,13 @@ -static void fr_destroy(hdlc_device *hdlc) +static void fr_destroy(struct net_device *frad) { - pvc_device *pvc; - - pvc = hdlc->state.fr.first_pvc; - hdlc->state.fr.first_pvc = NULL; /* All PVCs destroyed */ - hdlc->state.fr.dce_pvc_count = 0; - hdlc->state.fr.dce_changed = 1; + hdlc_device *hdlc = dev_to_hdlc(frad); + pvc_device *pvc = state(hdlc)->first_pvc; + state(hdlc)->first_pvc = NULL; /* All PVCs destroyed */ + state(hdlc)->dce_pvc_count = 0; + state(hdlc)->dce_changed = 1; while (pvc) { pvc_device *next = pvc->next; @@ -1161,8 +1215,17 @@ } +static struct hdlc_proto proto = { + .close = fr_close, + .start = fr_start, + .stop = fr_stop, + .detach = fr_destroy, + .ioctl = fr_ioctl, + .module = THIS_MODULE, +}; -int hdlc_fr_ioctl(struct net_device *dev, struct ifreq *ifr) + +static int fr_ioctl(struct net_device *dev, struct ifreq *ifr) { fr_proto __user *fr_s = ifr->ifr_settings.ifs_ifsu.fr; const size_t size = sizeof(fr_proto); @@ -1173,12 +1236,14 @@ switch (ifr->ifr_settings.type) { case IF_GET_PROTO: + if (dev_to_hdlc(dev)->proto != &proto) /* Different proto */ + return -EINVAL; ifr->ifr_settings.type = IF_PROTO_FR; if (ifr->ifr_settings.size < size) { ifr->ifr_settings.size = size; /* data size wanted */ return -ENOBUFS; } - if (copy_to_user(fr_s, &hdlc->state.fr.settings, size)) + if (copy_to_user(fr_s, &state(hdlc)->settings, size)) return -EFAULT; return 0; @@ -1213,20 +1278,16 @@ if (result) return result; - if (hdlc->proto.id != IF_PROTO_FR) { - hdlc_proto_detach(hdlc); - hdlc->state.fr.first_pvc = NULL; - hdlc->state.fr.dce_pvc_count = 0; + if (dev_to_hdlc(dev)->proto != &proto) { /* Different proto */ + result = attach_hdlc_protocol(dev, &proto, fr_rx, + sizeof(struct frad_state)); + if (result) + return result; + state(hdlc)->first_pvc = NULL; + state(hdlc)->dce_pvc_count = 0; } - memcpy(&hdlc->state.fr.settings, &new_settings, size); - memset(&hdlc->proto, 0, sizeof(hdlc->proto)); + memcpy(&state(hdlc)->settings, &new_settings, size); - hdlc->proto.close = fr_close; - hdlc->proto.start = fr_start; - hdlc->proto.stop = fr_stop; - hdlc->proto.detach = fr_destroy; - hdlc->proto.netif_rx = fr_rx; - hdlc->proto.id = IF_PROTO_FR; dev->hard_start_xmit = hdlc->xmit; dev->hard_header = NULL; dev->type = ARPHRD_FRAD; @@ -1238,6 +1299,9 @@ case IF_PROTO_FR_DEL_PVC: case IF_PROTO_FR_ADD_ETH_PVC: case IF_PROTO_FR_DEL_ETH_PVC: + if (dev_to_hdlc(dev)->proto != &proto) /* Different proto */ + return -EINVAL; + if(!capable(CAP_NET_ADMIN)) return -EPERM; @@ -1263,3 +1327,24 @@ return -EINVAL; } + + +static int __init mod_init(void) +{ + register_hdlc_protocol(&proto); + return 0; +} + + +static void __exit mod_exit(void) +{ + unregister_hdlc_protocol(&proto); +} + + +module_init(mod_init); +module_exit(mod_exit); + +MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>"); +MODULE_DESCRIPTION("Frame-Relay protocol support for generic HDLC"); +MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/wan/hdlc_ppp.c b/drivers/net/wan/hdlc_ppp.c index fbaab5b..e9f7170 100644 --- a/drivers/net/wan/hdlc_ppp.c +++ b/drivers/net/wan/hdlc_ppp.c
@@ -2,7 +2,7 @@ * Generic HDLC support routines for Linux * Point-to-point protocol support * - * Copyright (C) 1999 - 2003 Krzysztof Halasa <khc@pm.waw.pl> + * Copyright (C) 1999 - 2006 Krzysztof Halasa <khc@pm.waw.pl> * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License @@ -22,6 +22,21 @@ #include <linux/lapb.h> #include <linux/rtnetlink.h> #include <linux/hdlc.h> +#include <net/syncppp.h> + +struct ppp_state { + struct ppp_device pppdev; + struct ppp_device *syncppp_ptr; + int (*old_change_mtu)(struct net_device *dev, int new_mtu); +}; + +static int ppp_ioctl(struct net_device *dev, struct ifreq *ifr); + + +static inline struct ppp_state* state(hdlc_device *hdlc) +{ + return(struct ppp_state *)(hdlc->state); +} static int ppp_open(struct net_device *dev) @@ -30,16 +45,16 @@ void *old_ioctl; int result; - dev->priv = &hdlc->state.ppp.syncppp_ptr; - hdlc->state.ppp.syncppp_ptr = &hdlc->state.ppp.pppdev; - hdlc->state.ppp.pppdev.dev = dev; + dev->priv = &state(hdlc)->syncppp_ptr; + state(hdlc)->syncppp_ptr = &state(hdlc)->pppdev; + state(hdlc)->pppdev.dev = dev; old_ioctl = dev->do_ioctl; - hdlc->state.ppp.old_change_mtu = dev->change_mtu; - sppp_attach(&hdlc->state.ppp.pppdev); + state(hdlc)->old_change_mtu = dev->change_mtu; + sppp_attach(&state(hdlc)->pppdev); /* sppp_attach nukes them. We don't need syncppp's ioctl */ dev->do_ioctl = old_ioctl; - hdlc->state.ppp.pppdev.sppp.pp_flags &= ~PP_CISCO; + state(hdlc)->pppdev.sppp.pp_flags &= ~PP_CISCO; dev->type = ARPHRD_PPP; result = sppp_open(dev); if (result) { @@ -59,7 +74,7 @@ sppp_close(dev); sppp_detach(dev); dev->rebuild_header = NULL; - dev->change_mtu = hdlc->state.ppp.old_change_mtu; + dev->change_mtu = state(hdlc)->old_change_mtu; dev->mtu = HDLC_MAX_MTU; dev->hard_header_len = 16; } @@ -73,13 +88,24 @@ -int hdlc_ppp_ioctl(struct net_device *dev, struct ifreq *ifr) +static struct hdlc_proto proto = { + .open = ppp_open, + .close = ppp_close, + .type_trans = ppp_type_trans, + .ioctl = ppp_ioctl, + .module = THIS_MODULE, +}; + + +static int ppp_ioctl(struct net_device *dev, struct ifreq *ifr) { hdlc_device *hdlc = dev_to_hdlc(dev); int result; switch (ifr->ifr_settings.type) { case IF_GET_PROTO: + if (dev_to_hdlc(dev)->proto != &proto) + return -EINVAL; ifr->ifr_settings.type = IF_PROTO_PPP; return 0; /* return protocol only, no settable parameters */ @@ -96,13 +122,10 @@ if (result) return result; - hdlc_proto_detach(hdlc); - memset(&hdlc->proto, 0, sizeof(hdlc->proto)); - - hdlc->proto.open = ppp_open; - hdlc->proto.close = ppp_close; - hdlc->proto.type_trans = ppp_type_trans; - hdlc->proto.id = IF_PROTO_PPP; + result = attach_hdlc_protocol(dev, &proto, NULL, + sizeof(struct ppp_state)); + if (result) + return result; dev->hard_start_xmit = hdlc->xmit; dev->hard_header = NULL; dev->type = ARPHRD_PPP; @@ -113,3 +136,25 @@ return -EINVAL; } + + +static int __init mod_init(void) +{ + register_hdlc_protocol(&proto); + return 0; +} + + + +static void __exit mod_exit(void) +{ + unregister_hdlc_protocol(&proto); +} + + +module_init(mod_init); +module_exit(mod_exit); + +MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>"); +MODULE_DESCRIPTION("PPP protocol support for generic HDLC"); +MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/wan/hdlc_raw.c b/drivers/net/wan/hdlc_raw.c index f15aa6b..fe3cae5 100644 --- a/drivers/net/wan/hdlc_raw.c +++ b/drivers/net/wan/hdlc_raw.c
@@ -2,7 +2,7 @@ * Generic HDLC support routines for Linux * HDLC support * - * Copyright (C) 1999 - 2003 Krzysztof Halasa <khc@pm.waw.pl> + * Copyright (C) 1999 - 2006 Krzysztof Halasa <khc@pm.waw.pl> * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License @@ -24,6 +24,8 @@ #include <linux/hdlc.h> +static int raw_ioctl(struct net_device *dev, struct ifreq *ifr); + static __be16 raw_type_trans(struct sk_buff *skb, struct net_device *dev) { return __constant_htons(ETH_P_IP); @@ -31,7 +33,14 @@ -int hdlc_raw_ioctl(struct net_device *dev, struct ifreq *ifr) +static struct hdlc_proto proto = { + .type_trans = raw_type_trans, + .ioctl = raw_ioctl, + .module = THIS_MODULE, +}; + + +static int raw_ioctl(struct net_device *dev, struct ifreq *ifr) { raw_hdlc_proto __user *raw_s = ifr->ifr_settings.ifs_ifsu.raw_hdlc; const size_t size = sizeof(raw_hdlc_proto); @@ -41,12 +50,14 @@ switch (ifr->ifr_settings.type) { case IF_GET_PROTO: + if (dev_to_hdlc(dev)->proto != &proto) + return -EINVAL; ifr->ifr_settings.type = IF_PROTO_HDLC; if (ifr->ifr_settings.size < size) { ifr->ifr_settings.size = size; /* data size wanted */ return -ENOBUFS; } - if (copy_to_user(raw_s, &hdlc->state.raw_hdlc.settings, size)) + if (copy_to_user(raw_s, hdlc->state, size)) return -EFAULT; return 0; @@ -71,12 +82,11 @@ if (result) return result; - hdlc_proto_detach(hdlc); - memcpy(&hdlc->state.raw_hdlc.settings, &new_settings, size); - memset(&hdlc->proto, 0, sizeof(hdlc->proto)); - - hdlc->proto.type_trans = raw_type_trans; - hdlc->proto.id = IF_PROTO_HDLC; + result = attach_hdlc_protocol(dev, &proto, NULL, + sizeof(raw_hdlc_proto)); + if (result) + return result; + memcpy(hdlc->state, &new_settings, size); dev->hard_start_xmit = hdlc->xmit; dev->hard_header = NULL; dev->type = ARPHRD_RAWHDLC; @@ -88,3 +98,25 @@ return -EINVAL; } + + +static int __init mod_init(void) +{ + register_hdlc_protocol(&proto); + return 0; +} + + + +static void __exit mod_exit(void) +{ + unregister_hdlc_protocol(&proto); +} + + +module_init(mod_init); +module_exit(mod_exit); + +MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>"); +MODULE_DESCRIPTION("Raw HDLC protocol support for generic HDLC"); +MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/wan/hdlc_raw_eth.c b/drivers/net/wan/hdlc_raw_eth.c index d188498..1a69a9a 100644 --- a/drivers/net/wan/hdlc_raw_eth.c +++ b/drivers/net/wan/hdlc_raw_eth.c
@@ -2,7 +2,7 @@ * Generic HDLC support routines for Linux * HDLC Ethernet emulation support * - * Copyright (C) 2002-2003 Krzysztof Halasa <khc@pm.waw.pl> + * Copyright (C) 2002-2006 Krzysztof Halasa <khc@pm.waw.pl> * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License @@ -25,6 +25,7 @@ #include <linux/etherdevice.h> #include <linux/hdlc.h> +static int raw_eth_ioctl(struct net_device *dev, struct ifreq *ifr); static int eth_tx(struct sk_buff *skb, struct net_device *dev) { @@ -44,7 +45,14 @@ } -int hdlc_raw_eth_ioctl(struct net_device *dev, struct ifreq *ifr) +static struct hdlc_proto proto = { + .type_trans = eth_type_trans, + .ioctl = raw_eth_ioctl, + .module = THIS_MODULE, +}; + + +static int raw_eth_ioctl(struct net_device *dev, struct ifreq *ifr) { raw_hdlc_proto __user *raw_s = ifr->ifr_settings.ifs_ifsu.raw_hdlc; const size_t size = sizeof(raw_hdlc_proto); @@ -56,12 +64,14 @@ switch (ifr->ifr_settings.type) { case IF_GET_PROTO: + if (dev_to_hdlc(dev)->proto != &proto) + return -EINVAL; ifr->ifr_settings.type = IF_PROTO_HDLC_ETH; if (ifr->ifr_settings.size < size) { ifr->ifr_settings.size = size; /* data size wanted */ return -ENOBUFS; } - if (copy_to_user(raw_s, &hdlc->state.raw_hdlc.settings, size)) + if (copy_to_user(raw_s, hdlc->state, size)) return -EFAULT; return 0; @@ -86,12 +96,11 @@ if (result) return result; - hdlc_proto_detach(hdlc); - memcpy(&hdlc->state.raw_hdlc.settings, &new_settings, size); - memset(&hdlc->proto, 0, sizeof(hdlc->proto)); - - hdlc->proto.type_trans = eth_type_trans; - hdlc->proto.id = IF_PROTO_HDLC_ETH; + result = attach_hdlc_protocol(dev, &proto, NULL, + sizeof(raw_hdlc_proto)); + if (result) + return result; + memcpy(hdlc->state, &new_settings, size); dev->hard_start_xmit = eth_tx; old_ch_mtu = dev->change_mtu; old_qlen = dev->tx_queue_len; @@ -106,3 +115,25 @@ return -EINVAL; } + + +static int __init mod_init(void) +{ + register_hdlc_protocol(&proto); + return 0; +} + + + +static void __exit mod_exit(void) +{ + unregister_hdlc_protocol(&proto); +} + + +module_init(mod_init); +module_exit(mod_exit); + +MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>"); +MODULE_DESCRIPTION("Ethernet encapsulation support for generic HDLC"); +MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/wan/hdlc_x25.c b/drivers/net/wan/hdlc_x25.c index a867fb4..e4bb9f8 100644 --- a/drivers/net/wan/hdlc_x25.c +++ b/drivers/net/wan/hdlc_x25.c
@@ -2,7 +2,7 @@ * Generic HDLC support routines for Linux * X.25 support * - * Copyright (C) 1999 - 2003 Krzysztof Halasa <khc@pm.waw.pl> + * Copyright (C) 1999 - 2006 Krzysztof Halasa <khc@pm.waw.pl> * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License @@ -25,6 +25,8 @@ #include <net/x25device.h> +static int x25_ioctl(struct net_device *dev, struct ifreq *ifr); + /* These functions are callbacks called by LAPB layer */ static void x25_connect_disconnect(struct net_device *dev, int reason, int code) @@ -162,30 +164,39 @@ static int x25_rx(struct sk_buff *skb) { - hdlc_device *hdlc = dev_to_hdlc(skb->dev); + struct hdlc_device_desc *desc = dev_to_desc(skb->dev); if ((skb = skb_share_check(skb, GFP_ATOMIC)) == NULL) { - hdlc->stats.rx_dropped++; + desc->stats.rx_dropped++; return NET_RX_DROP; } if (lapb_data_received(skb->dev, skb) == LAPB_OK) return NET_RX_SUCCESS; - hdlc->stats.rx_errors++; + desc->stats.rx_errors++; dev_kfree_skb_any(skb); return NET_RX_DROP; } +static struct hdlc_proto proto = { + .open = x25_open, + .close = x25_close, + .ioctl = x25_ioctl, + .module = THIS_MODULE, +}; -int hdlc_x25_ioctl(struct net_device *dev, struct ifreq *ifr) + +static int x25_ioctl(struct net_device *dev, struct ifreq *ifr) { hdlc_device *hdlc = dev_to_hdlc(dev); int result; switch (ifr->ifr_settings.type) { case IF_GET_PROTO: + if (dev_to_hdlc(dev)->proto != &proto) + return -EINVAL; ifr->ifr_settings.type = IF_PROTO_X25; return 0; /* return protocol only, no settable parameters */ @@ -200,14 +211,9 @@ if (result) return result; - hdlc_proto_detach(hdlc); - memset(&hdlc->proto, 0, sizeof(hdlc->proto)); - - hdlc->proto.open = x25_open; - hdlc->proto.close = x25_close; - hdlc->proto.netif_rx = x25_rx; - hdlc->proto.type_trans = NULL; - hdlc->proto.id = IF_PROTO_X25; + if ((result = attach_hdlc_protocol(dev, &proto, + x25_rx, 0)) != 0) + return result; dev->hard_start_xmit = x25_xmit; dev->hard_header = NULL; dev->type = ARPHRD_X25; @@ -218,3 +224,25 @@ return -EINVAL; } + + +static int __init mod_init(void) +{ + register_hdlc_protocol(&proto); + return 0; +} + + + +static void __exit mod_exit(void) +{ + unregister_hdlc_protocol(&proto); +} + + +module_init(mod_init); +module_exit(mod_exit); + +MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>"); +MODULE_DESCRIPTION("X.25 protocol support for generic HDLC"); +MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/wan/pc300.h b/drivers/net/wan/pc300.h index 2024b26..63e9fcf 100644 --- a/drivers/net/wan/pc300.h +++ b/drivers/net/wan/pc300.h
@@ -100,6 +100,7 @@ #define _PC300_H #include <linux/hdlc.h> +#include <net/syncppp.h> #include "hd64572.h" #include "pc300-falc-lh.h"
diff --git a/drivers/net/wan/pc300_drv.c b/drivers/net/wan/pc300_drv.c index 56e6940..8d9b959 100644 --- a/drivers/net/wan/pc300_drv.c +++ b/drivers/net/wan/pc300_drv.c
@@ -2016,7 +2016,6 @@ pc300ch_t *chan = &card->chan[ch]; pc300dev_t *d = &chan->d; struct net_device *dev = d->dev; - hdlc_device *hdlc = dev_to_hdlc(dev); spin_lock(&card->card_lock); @@ -2049,8 +2048,8 @@ } cpc_net_rx(dev); /* Discard invalid frames */ - hdlc->stats.rx_errors++; - hdlc->stats.rx_over_errors++; + hdlc_stats(dev)->rx_errors++; + hdlc_stats(dev)->rx_over_errors++; chan->rx_first_bd = 0; chan->rx_last_bd = N_DMA_RX_BUF - 1; rx_dma_start(card, ch); @@ -2116,8 +2115,8 @@ card->hw.cpld_reg2) & ~ (CPLD_REG2_FALC_LED1 << (2 * ch))); } - hdlc->stats.tx_errors++; - hdlc->stats.tx_fifo_errors++; + hdlc_stats(dev)->tx_errors++; + hdlc_stats(dev)->tx_fifo_errors++; sca_tx_intr(d); } } @@ -2534,7 +2533,6 @@ static int cpc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { - hdlc_device *hdlc = dev_to_hdlc(dev); pc300dev_t *d = (pc300dev_t *) dev->priv; pc300ch_t *chan = (pc300ch_t *) d->chan; pc300_t *card = (pc300_t *) chan->card; @@ -2552,10 +2550,10 @@ case SIOCGPC300CONF: #ifdef CONFIG_PC300_MLPPP if (conf->proto != PC300_PROTO_MLPPP) { - conf->proto = hdlc->proto.id; + conf->proto = /* FIXME hdlc->proto.id */ 0; } #else - conf->proto = hdlc->proto.id; + conf->proto = /* FIXME hdlc->proto.id */ 0; #endif memcpy(&conf_aux.conf, conf, sizeof(pc300chconf_t)); memcpy(&conf_aux.hw, &card->hw, sizeof(pc300hw_t)); @@ -2588,12 +2586,12 @@ } } else { memcpy(conf, &conf_aux.conf, sizeof(pc300chconf_t)); - hdlc->proto.id = conf->proto; + /* FIXME hdlc->proto.id = conf->proto; */ } } #else memcpy(conf, &conf_aux.conf, sizeof(pc300chconf_t)); - hdlc->proto.id = conf->proto; + /* FIXME hdlc->proto.id = conf->proto; */ #endif return 0; case SIOCGPC300STATUS: @@ -2606,7 +2604,7 @@ case SIOCGPC300UTILSTATS: { if (!arg) { /* clear statistics */ - memset(&hdlc->stats, 0, sizeof(struct net_device_stats)); + memset(hdlc_stats(dev), 0, sizeof(struct net_device_stats)); if (card->hw.type == PC300_TE) { memset(&chan->falc, 0, sizeof(falc_t)); } @@ -2617,7 +2615,7 @@ pc300stats.hw_type = card->hw.type; pc300stats.line_on = card->chan[ch].d.line_on; pc300stats.line_off = card->chan[ch].d.line_off; - memcpy(&pc300stats.gen_stats, &hdlc->stats, + memcpy(&pc300stats.gen_stats, hdlc_stats(dev), sizeof(struct net_device_stats)); if (card->hw.type == PC300_TE) memcpy(&pc300stats.te_stats,&chan->falc,sizeof(falc_t)); @@ -3147,7 +3145,6 @@ int cpc_open(struct net_device *dev) { - hdlc_device *hdlc = dev_to_hdlc(dev); pc300dev_t *d = (pc300dev_t *) dev->priv; struct ifreq ifr; int result; @@ -3156,12 +3153,14 @@ printk("pc300: cpc_open"); #endif +#ifdef FIXME if (hdlc->proto.id == IF_PROTO_PPP) { d->if_ptr = &hdlc->state.ppp.pppdev; } +#endif result = hdlc_open(dev); - if (hdlc->proto.id == IF_PROTO_PPP) { + if (/* FIXME hdlc->proto.id == IF_PROTO_PPP*/ 0) { dev->priv = d; } if (result) { @@ -3176,7 +3175,6 @@ static int cpc_close(struct net_device *dev) { - hdlc_device *hdlc = dev_to_hdlc(dev); pc300dev_t *d = (pc300dev_t *) dev->priv; pc300ch_t *chan = (pc300ch_t *) d->chan; pc300_t *card = (pc300_t *) chan->card; @@ -3193,7 +3191,7 @@ CPC_UNLOCK(card, flags); hdlc_close(dev); - if (hdlc->proto.id == IF_PROTO_PPP) { + if (/* FIXME hdlc->proto.id == IF_PROTO_PPP*/ 0) { d->if_ptr = NULL; } #ifdef CONFIG_PC300_MLPPP
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c index bff04cb..ba737c6 100644 --- a/drivers/net/wireless/airo.c +++ b/drivers/net/wireless/airo.c
@@ -5868,7 +5868,7 @@ int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; /* Check the size of the string */ - if(dwrq->length > IW_ESSID_MAX_SIZE+1) { + if(dwrq->length > IW_ESSID_MAX_SIZE) { return -E2BIG ; } /* Check if index is valid */ @@ -5880,7 +5880,7 @@ memset(SSID_rid.ssids[index].ssid, 0, sizeof(SSID_rid.ssids[index].ssid)); memcpy(SSID_rid.ssids[index].ssid, extra, dwrq->length); - SSID_rid.ssids[index].len = dwrq->length - 1; + SSID_rid.ssids[index].len = dwrq->length; } SSID_rid.len = sizeof(SSID_rid); /* Write it to the card */ @@ -5990,7 +5990,7 @@ struct airo_info *local = dev->priv; /* Check the size of the string */ - if(dwrq->length > 16 + 1) { + if(dwrq->length > 16) { return -E2BIG; } readConfigRid(local, 1); @@ -6015,7 +6015,7 @@ readConfigRid(local, 1); strncpy(extra, local->config.nodeName, 16); extra[16] = '\0'; - dwrq->length = strlen(extra) + 1; + dwrq->length = strlen(extra); return 0; } @@ -6767,9 +6767,9 @@ } readConfigRid(local, 1); if(vwrq->flags & IW_RETRY_LIMIT) { - if(vwrq->flags & IW_RETRY_MAX) + if(vwrq->flags & IW_RETRY_LONG) local->config.longRetryLimit = vwrq->value; - else if (vwrq->flags & IW_RETRY_MIN) + else if (vwrq->flags & IW_RETRY_SHORT) local->config.shortRetryLimit = vwrq->value; else { /* No modifier : set both */ @@ -6805,14 +6805,14 @@ if((vwrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) { vwrq->flags = IW_RETRY_LIFETIME; vwrq->value = (int)local->config.txLifetime * 1024; - } else if((vwrq->flags & IW_RETRY_MAX)) { - vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; + } else if((vwrq->flags & IW_RETRY_LONG)) { + vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; vwrq->value = (int)local->config.longRetryLimit; } else { vwrq->flags = IW_RETRY_LIMIT; vwrq->value = (int)local->config.shortRetryLimit; if((int)local->config.shortRetryLimit != (int)local->config.longRetryLimit) - vwrq->flags |= IW_RETRY_MIN; + vwrq->flags |= IW_RETRY_SHORT; } return 0; @@ -6990,6 +6990,7 @@ local->config.rmode |= RXMODE_BC_MC_ADDR; set_bit (FLAG_COMMIT, &local->flags); case IW_POWER_ON: + /* This is broken, fixme ;-) */ break; default: return -EINVAL;
diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c index 995c7be..0fc267d 100644 --- a/drivers/net/wireless/atmel.c +++ b/drivers/net/wireless/atmel.c
@@ -1656,13 +1656,13 @@ priv->connect_to_any_BSS = 0; /* Check the size of the string */ - if (dwrq->length > MAX_SSID_LENGTH + 1) + if (dwrq->length > MAX_SSID_LENGTH) return -E2BIG; if (index != 0) return -EINVAL; - memcpy(priv->new_SSID, extra, dwrq->length - 1); - priv->new_SSID_size = dwrq->length - 1; + memcpy(priv->new_SSID, extra, dwrq->length); + priv->new_SSID_size = dwrq->length; } return -EINPROGRESS; @@ -2120,9 +2120,9 @@ struct atmel_private *priv = netdev_priv(dev); if (!vwrq->disabled && (vwrq->flags & IW_RETRY_LIMIT)) { - if (vwrq->flags & IW_RETRY_MAX) + if (vwrq->flags & IW_RETRY_LONG) priv->long_retry = vwrq->value; - else if (vwrq->flags & IW_RETRY_MIN) + else if (vwrq->flags & IW_RETRY_SHORT) priv->short_retry = vwrq->value; else { /* No modifier : set both */ @@ -2144,15 +2144,15 @@ vwrq->disabled = 0; /* Can't be disabled */ - /* Note : by default, display the min retry number */ - if (vwrq->flags & IW_RETRY_MAX) { - vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; + /* Note : by default, display the short retry number */ + if (vwrq->flags & IW_RETRY_LONG) { + vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; vwrq->value = priv->long_retry; } else { vwrq->flags = IW_RETRY_LIMIT; vwrq->value = priv->short_retry; if (priv->long_retry != priv->short_retry) - vwrq->flags |= IW_RETRY_MIN; + vwrq->flags |= IW_RETRY_SHORT; } return 0;
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx.h b/drivers/net/wireless/bcm43xx/bcm43xx.h index 6d4ea36..d6a8bf0 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx.h +++ b/drivers/net/wireless/bcm43xx/bcm43xx.h
@@ -666,7 +666,6 @@ }; struct bcm43xx_stats { - u8 link_quality; u8 noise; struct iw_statistics wstats; /* Store the last TX/RX times here for updating the leds. */
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c b/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c index 923275e..b9df06a 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_debugfs.c
@@ -54,7 +54,7 @@ static int open_file_generic(struct inode *inode, struct file *file) { - file->private_data = inode->u.generic_ip; + file->private_data = inode->i_private; return 0; }
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_main.c b/drivers/net/wireless/bcm43xx/bcm43xx_main.c index cb9a3ae..eb65db7 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_main.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
@@ -2405,9 +2405,10 @@ BCM43xx_UCODE_TIME) & 0x1f); if ( value16 > 0x128 ) { - dprintk(KERN_ERR PFX - "Firmware: no support for microcode rev > 0x128\n"); - err = -1; + printk(KERN_ERR PFX + "Firmware: no support for microcode extracted " + "from version 4.x binary drivers.\n"); + err = -EOPNOTSUPP; goto err_release_fw; } @@ -3169,8 +3170,7 @@ * be preemtible. */ mutex_lock(&bcm->mutex); - netif_stop_queue(bcm->net_dev); - synchronize_net(); + netif_tx_disable(bcm->net_dev); spin_lock_irqsave(&bcm->irq_lock, flags); bcm43xx_mac_suspend(bcm); if (bcm43xx_using_pio(bcm))
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_phy.c b/drivers/net/wireless/bcm43xx/bcm43xx_phy.c index eafd0f6..52ce2a9 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_phy.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_phy.c
@@ -361,7 +361,7 @@ if (phy->rev <= 2) for (i = 0; i < BCM43xx_ILT_NOISESCALEG_SIZE; i++) bcm43xx_ilt_write(bcm, 0x1400 + i, bcm43xx_ilt_noisescaleg1[i]); - else if ((phy->rev == 7) && (bcm43xx_phy_read(bcm, 0x0449) & 0x0200)) + else if ((phy->rev >= 7) && (bcm43xx_phy_read(bcm, 0x0449) & 0x0200)) for (i = 0; i < BCM43xx_ILT_NOISESCALEG_SIZE; i++) bcm43xx_ilt_write(bcm, 0x1400 + i, bcm43xx_ilt_noisescaleg3[i]); else @@ -371,7 +371,7 @@ if (phy->rev == 2) for (i = 0; i < BCM43xx_ILT_SIGMASQR_SIZE; i++) bcm43xx_ilt_write(bcm, 0x5000 + i, bcm43xx_ilt_sigmasqr1[i]); - else if ((phy->rev > 2) && (phy->rev <= 7)) + else if ((phy->rev > 2) && (phy->rev <= 8)) for (i = 0; i < BCM43xx_ILT_SIGMASQR_SIZE; i++) bcm43xx_ilt_write(bcm, 0x5000 + i, bcm43xx_ilt_sigmasqr2[i]); @@ -1197,7 +1197,7 @@ if (phy->rev == 1) bcm43xx_phy_initb5(bcm); - else if (phy->rev >= 2 && phy->rev <= 7) + else bcm43xx_phy_initb6(bcm); if (phy->rev >= 2 || phy->connected) bcm43xx_phy_inita(bcm); @@ -1241,23 +1241,22 @@ bcm43xx_phy_lo_g_measure(bcm); } else { if (radio->version == 0x2050 && radio->revision == 8) { - //FIXME + bcm43xx_radio_write16(bcm, 0x0052, + (radio->txctl1 << 4) | radio->txctl2); } else { bcm43xx_radio_write16(bcm, 0x0052, (bcm43xx_radio_read16(bcm, 0x0052) & 0xFFF0) | radio->txctl1); } if (phy->rev >= 6) { - /* bcm43xx_phy_write(bcm, 0x0036, (bcm43xx_phy_read(bcm, 0x0036) - & 0xF000) | (FIXME << 12)); - */ + & 0xF000) | (radio->txctl2 << 12)); } if (bcm->sprom.boardflags & BCM43xx_BFL_PACTRL) bcm43xx_phy_write(bcm, 0x002E, 0x8075); else - bcm43xx_phy_write(bcm, 0x003E, 0x807F); + bcm43xx_phy_write(bcm, 0x002E, 0x807F); if (phy->rev < 2) bcm43xx_phy_write(bcm, 0x002F, 0x0101); else
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_wx.c b/drivers/net/wireless/bcm43xx/bcm43xx_wx.c index 888077f..9b7b15c 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_wx.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_wx.c
@@ -334,7 +334,7 @@ size_t len; mutex_lock(&bcm->mutex); - len = strlen(bcm->nick) + 1; + len = strlen(bcm->nick); memcpy(extra, bcm->nick, len); data->data.length = (__u16)len; data->data.flags = 1;
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_xmit.c b/drivers/net/wireless/bcm43xx/bcm43xx_xmit.c index c0efbfe..0159e4e 100644 --- a/drivers/net/wireless/bcm43xx/bcm43xx_xmit.c +++ b/drivers/net/wireless/bcm43xx/bcm43xx_xmit.c
@@ -496,15 +496,14 @@ stats.signal = bcm43xx_rssi_postprocess(bcm, rxhdr->rssi, is_ofdm, !!(rxflags1 & BCM43xx_RXHDR_FLAGS1_2053RSSIADJ), !!(rxflags3 & BCM43xx_RXHDR_FLAGS3_2050RSSIADJ)); -//TODO stats.noise = + stats.noise = bcm->stats.noise; if (is_ofdm) stats.rate = bcm43xx_plcp_get_bitrate_ofdm(plcp); else stats.rate = bcm43xx_plcp_get_bitrate_cck(plcp); stats.received_channel = radio->channel; -//TODO stats.control = stats.mask = IEEE80211_STATMASK_SIGNAL | -//TODO IEEE80211_STATMASK_NOISE | + IEEE80211_STATMASK_NOISE | IEEE80211_STATMASK_RATE | IEEE80211_STATMASK_RSSI; if (phy->type == BCM43xx_PHYTYPE_A)
diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c index 7a49785..d061fb3 100644 --- a/drivers/net/wireless/hostap/hostap_ioctl.c +++ b/drivers/net/wireless/hostap/hostap_ioctl.c
@@ -1412,9 +1412,9 @@ /* what could be done, if firmware would support this.. */ if (rrq->flags & IW_RETRY_LIMIT) { - if (rrq->flags & IW_RETRY_MAX) + if (rrq->flags & IW_RETRY_LONG) HFA384X_RID_LONGRETRYLIMIT = rrq->value; - else if (rrq->flags & IW_RETRY_MIN) + else if (rrq->flags & IW_RETRY_SHORT) HFA384X_RID_SHORTRETRYLIMIT = rrq->value; else { HFA384X_RID_LONGRETRYLIMIT = rrq->value; @@ -1468,14 +1468,14 @@ rrq->value = le16_to_cpu(altretry); else rrq->value = local->manual_retry_count; - } else if ((rrq->flags & IW_RETRY_MAX)) { - rrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; + } else if ((rrq->flags & IW_RETRY_LONG)) { + rrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; rrq->value = longretry; } else { rrq->flags = IW_RETRY_LIMIT; rrq->value = shortretry; if (shortretry != longretry) - rrq->flags |= IW_RETRY_MIN; + rrq->flags |= IW_RETRY_SHORT; } } return 0;
diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c index b4d81a0..6c5add7 100644 --- a/drivers/net/wireless/ipw2100.c +++ b/drivers/net/wireless/ipw2100.c
@@ -6958,7 +6958,7 @@ } if (wrqu->essid.flags && wrqu->essid.length) { - length = wrqu->essid.length - 1; + length = wrqu->essid.length; essid = extra; } @@ -7051,7 +7051,7 @@ struct ipw2100_priv *priv = ieee80211_priv(dev); - wrqu->data.length = strlen(priv->nick) + 1; + wrqu->data.length = strlen(priv->nick); memcpy(extra, priv->nick, wrqu->data.length); wrqu->data.flags = 1; /* active */ @@ -7343,14 +7343,14 @@ goto done; } - if (wrqu->retry.flags & IW_RETRY_MIN) { + if (wrqu->retry.flags & IW_RETRY_SHORT) { err = ipw2100_set_short_retry(priv, wrqu->retry.value); IPW_DEBUG_WX("SET Short Retry Limit -> %d \n", wrqu->retry.value); goto done; } - if (wrqu->retry.flags & IW_RETRY_MAX) { + if (wrqu->retry.flags & IW_RETRY_LONG) { err = ipw2100_set_long_retry(priv, wrqu->retry.value); IPW_DEBUG_WX("SET Long Retry Limit -> %d \n", wrqu->retry.value); @@ -7383,14 +7383,14 @@ if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) return -EINVAL; - if (wrqu->retry.flags & IW_RETRY_MAX) { - wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX; + if (wrqu->retry.flags & IW_RETRY_LONG) { + wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG; wrqu->retry.value = priv->long_retry_limit; } else { wrqu->retry.flags = (priv->short_retry_limit != priv->long_retry_limit) ? - IW_RETRY_LIMIT | IW_RETRY_MIN : IW_RETRY_LIMIT; + IW_RETRY_LIMIT | IW_RETRY_SHORT : IW_RETRY_LIMIT; wrqu->retry.value = priv->short_retry_limit; }
diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c index 7358664..5685d7b 100644 --- a/drivers/net/wireless/ipw2200.c +++ b/drivers/net/wireless/ipw2200.c
@@ -8875,8 +8875,6 @@ } length = min((int)wrqu->essid.length, IW_ESSID_MAX_SIZE); - if (!extra[length - 1]) - length--; priv->config |= CFG_STATIC_ESSID; @@ -8953,7 +8951,7 @@ struct ipw_priv *priv = ieee80211_priv(dev); IPW_DEBUG_WX("Getting nick\n"); mutex_lock(&priv->mutex); - wrqu->data.length = strlen(priv->nick) + 1; + wrqu->data.length = strlen(priv->nick); memcpy(extra, priv->nick, wrqu->data.length); wrqu->data.flags = 1; /* active */ mutex_unlock(&priv->mutex); @@ -9276,9 +9274,9 @@ return -EINVAL; mutex_lock(&priv->mutex); - if (wrqu->retry.flags & IW_RETRY_MIN) + if (wrqu->retry.flags & IW_RETRY_SHORT) priv->short_retry_limit = (u8) wrqu->retry.value; - else if (wrqu->retry.flags & IW_RETRY_MAX) + else if (wrqu->retry.flags & IW_RETRY_LONG) priv->long_retry_limit = (u8) wrqu->retry.value; else { priv->short_retry_limit = (u8) wrqu->retry.value; @@ -9307,11 +9305,11 @@ return -EINVAL; } - if (wrqu->retry.flags & IW_RETRY_MAX) { - wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX; + if (wrqu->retry.flags & IW_RETRY_LONG) { + wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG; wrqu->retry.value = priv->long_retry_limit; - } else if (wrqu->retry.flags & IW_RETRY_MIN) { - wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN; + } else if (wrqu->retry.flags & IW_RETRY_SHORT) { + wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT; wrqu->retry.value = priv->short_retry_limit; } else { wrqu->retry.flags = IW_RETRY_LIMIT;
diff --git a/drivers/net/wireless/orinoco.c b/drivers/net/wireless/orinoco.c index 1840b69..9e19a96 100644 --- a/drivers/net/wireless/orinoco.c +++ b/drivers/net/wireless/orinoco.c
@@ -3037,7 +3037,7 @@ } erq->flags = 1; - erq->length = strlen(essidbuf) + 1; + erq->length = strlen(essidbuf); return 0; } @@ -3078,7 +3078,7 @@ memcpy(nickbuf, priv->nick, IW_ESSID_MAX_SIZE+1); orinoco_unlock(priv, &flags); - nrq->length = strlen(nickbuf)+1; + nrq->length = strlen(nickbuf); return 0; } @@ -3575,14 +3575,14 @@ rrq->value = lifetime * 1000; /* ??? */ } else { /* By default, display the min number */ - if ((rrq->flags & IW_RETRY_MAX)) { - rrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; + if ((rrq->flags & IW_RETRY_LONG)) { + rrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; rrq->value = long_limit; } else { rrq->flags = IW_RETRY_LIMIT; rrq->value = short_limit; if(short_limit != long_limit) - rrq->flags |= IW_RETRY_MIN; + rrq->flags |= IW_RETRY_SHORT; } }
diff --git a/drivers/net/wireless/prism54/isl_ioctl.c b/drivers/net/wireless/prism54/isl_ioctl.c index c09fbf7..286325c 100644 --- a/drivers/net/wireless/prism54/isl_ioctl.c +++ b/drivers/net/wireless/prism54/isl_ioctl.c
@@ -742,9 +742,9 @@ /* Check if we were asked for `any' */ if (dwrq->flags && dwrq->length) { - if (dwrq->length > min(33, IW_ESSID_MAX_SIZE + 1)) + if (dwrq->length > 32) return -E2BIG; - essid.length = dwrq->length - 1; + essid.length = dwrq->length; memcpy(essid.octets, extra, dwrq->length); } else essid.length = 0; @@ -814,7 +814,7 @@ dwrq->length = 0; down_read(&priv->mib_sem); - dwrq->length = strlen(priv->nickname) + 1; + dwrq->length = strlen(priv->nickname); memcpy(extra, priv->nickname, dwrq->length); up_read(&priv->mib_sem); @@ -992,9 +992,9 @@ return -EINVAL; if (vwrq->flags & IW_RETRY_LIMIT) { - if (vwrq->flags & IW_RETRY_MIN) + if (vwrq->flags & IW_RETRY_SHORT) slimit = vwrq->value; - else if (vwrq->flags & IW_RETRY_MAX) + else if (vwrq->flags & IW_RETRY_LONG) llimit = vwrq->value; else { /* we are asked to set both */ @@ -1035,18 +1035,18 @@ mgt_get_request(priv, DOT11_OID_MAXTXLIFETIME, 0, NULL, &r); vwrq->value = r.u * 1024; vwrq->flags = IW_RETRY_LIFETIME; - } else if ((vwrq->flags & IW_RETRY_MAX)) { + } else if ((vwrq->flags & IW_RETRY_LONG)) { /* we are asked for the long retry limit */ rvalue |= mgt_get_request(priv, DOT11_OID_LONGRETRIES, 0, NULL, &r); vwrq->value = r.u; - vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; + vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; } else { /* default. get the short retry limit */ rvalue |= mgt_get_request(priv, DOT11_OID_SHORTRETRIES, 0, NULL, &r); vwrq->value = r.u; - vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_MIN; + vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_SHORT; } return rvalue;
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c index 4574290..e82548e 100644 --- a/drivers/net/wireless/ray_cs.c +++ b/drivers/net/wireless/ray_cs.c
@@ -1173,7 +1173,7 @@ return -EOPNOTSUPP; } else { /* Check the size of the string */ - if(dwrq->length > IW_ESSID_MAX_SIZE + 1) { + if(dwrq->length > IW_ESSID_MAX_SIZE) { return -E2BIG; }
diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c index e0d294c..e3ae5f6 100644 --- a/drivers/net/wireless/wl3501_cs.c +++ b/drivers/net/wireless/wl3501_cs.c
@@ -1802,15 +1802,15 @@ &retry, sizeof(retry)); if (rc) goto out; - if (wrqu->retry.flags & IW_RETRY_MAX) { - wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX; + if (wrqu->retry.flags & IW_RETRY_LONG) { + wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_LONG; goto set_value; } rc = wl3501_get_mib_value(this, WL3501_MIB_ATTR_SHORT_RETRY_LIMIT, &retry, sizeof(retry)); if (rc) goto out; - wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN; + wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_SHORT; set_value: wrqu->retry.value = retry; wrqu->retry.disabled = 0;
diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c index c52e9bcf..80af9a9 100644 --- a/drivers/net/wireless/zd1201.c +++ b/drivers/net/wireless/zd1201.c
@@ -119,7 +119,7 @@ switch(urb->status) { case -EILSEQ: case -ENODEV: - case -ETIMEDOUT: + case -ETIME: case -ENOENT: case -EPIPE: case -EOVERFLOW: @@ -201,7 +201,7 @@ switch(urb->status) { case -EILSEQ: case -ENODEV: - case -ETIMEDOUT: + case -ETIME: case -ENOENT: case -EPIPE: case -EOVERFLOW: @@ -1218,7 +1218,7 @@ return -EINVAL; if (data->length < 1) data->length = 1; - zd->essidlen = data->length-1; + zd->essidlen = data->length; memset(zd->essid, 0, IW_ESSID_MAX_SIZE+1); memcpy(zd->essid, essid, data->length); return zd1201_join(zd, zd->essid, zd->essidlen);
diff --git a/drivers/net/wireless/zd1211rw/zd_chip.c b/drivers/net/wireless/zd1211rw/zd_chip.c index 7c4e32c..aa661b2 100644 --- a/drivers/net/wireless/zd1211rw/zd_chip.c +++ b/drivers/net/wireless/zd1211rw/zd_chip.c
@@ -249,7 +249,6 @@ { int r; - ZD_ASSERT(!mutex_is_locked(&chip->mutex)); mutex_lock(&chip->mutex); r = zd_ioread16_locked(chip, value, addr); mutex_unlock(&chip->mutex); @@ -260,7 +259,6 @@ { int r; - ZD_ASSERT(!mutex_is_locked(&chip->mutex)); mutex_lock(&chip->mutex); r = zd_ioread32_locked(chip, value, addr); mutex_unlock(&chip->mutex); @@ -271,7 +269,6 @@ { int r; - ZD_ASSERT(!mutex_is_locked(&chip->mutex)); mutex_lock(&chip->mutex); r = zd_iowrite16_locked(chip, value, addr); mutex_unlock(&chip->mutex); @@ -282,7 +279,6 @@ { int r; - ZD_ASSERT(!mutex_is_locked(&chip->mutex)); mutex_lock(&chip->mutex); r = zd_iowrite32_locked(chip, value, addr); mutex_unlock(&chip->mutex); @@ -294,7 +290,6 @@ { int r; - ZD_ASSERT(!mutex_is_locked(&chip->mutex)); mutex_lock(&chip->mutex); r = zd_ioread32v_locked(chip, values, addresses, count); mutex_unlock(&chip->mutex); @@ -306,7 +301,6 @@ { int r; - ZD_ASSERT(!mutex_is_locked(&chip->mutex)); mutex_lock(&chip->mutex); r = zd_iowrite32a_locked(chip, ioreqs, count); mutex_unlock(&chip->mutex); @@ -331,13 +325,22 @@ chip->patch_cr157 = (value >> 13) & 0x1; chip->patch_6m_band_edge = (value >> 21) & 0x1; chip->new_phy_layout = (value >> 31) & 0x1; + chip->link_led = ((value >> 4) & 1) ? LED1 : LED2; + chip->supports_tx_led = 1; + if (value & (1 << 24)) { /* LED scenario */ + if (value & (1 << 29)) + chip->supports_tx_led = 0; + } dev_dbg_f(zd_chip_dev(chip), "RF %s %#01x PA type %#01x patch CCK %d patch CR157 %d " - "patch 6M %d new PHY %d\n", + "patch 6M %d new PHY %d link LED%d tx led %d\n", zd_rf_name(*rf_type), *rf_type, chip->pa_type, chip->patch_cck_gain, - chip->patch_cr157, chip->patch_6m_band_edge, chip->new_phy_layout); + chip->patch_cr157, chip->patch_6m_band_edge, + chip->new_phy_layout, + chip->link_led == LED1 ? 1 : 2, + chip->supports_tx_led); return 0; error: *rf_type = 0; @@ -1181,7 +1184,7 @@ u8 value = chip->pwr_int_values[channel - 1]; dev_dbg_f(zd_chip_dev(chip), "channel %d pwr_int %#04x\n", channel, value); - return zd_iowrite32_locked(chip, value, CR31); + return zd_iowrite16_locked(chip, value, CR31); } static int update_pwr_cal(struct zd_chip *chip, u8 channel) @@ -1189,12 +1192,12 @@ u8 value = chip->pwr_cal_values[channel-1]; dev_dbg_f(zd_chip_dev(chip), "channel %d pwr_cal %#04x\n", channel, value); - return zd_iowrite32_locked(chip, value, CR68); + return zd_iowrite16_locked(chip, value, CR68); } static int update_ofdm_cal(struct zd_chip *chip, u8 channel) { - struct zd_ioreq32 ioreqs[3]; + struct zd_ioreq16 ioreqs[3]; ioreqs[0].addr = CR67; ioreqs[0].value = chip->ofdm_cal_values[OFDM_36M_INDEX][channel-1]; @@ -1206,7 +1209,7 @@ dev_dbg_f(zd_chip_dev(chip), "channel %d ofdm_cal 36M %#04x 48M %#04x 54M %#04x\n", channel, ioreqs[0].value, ioreqs[1].value, ioreqs[2].value); - return zd_iowrite32a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); + return zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); } static int update_channel_integration_and_calibration(struct zd_chip *chip, @@ -1218,7 +1221,7 @@ if (r) return r; if (chip->is_zd1211b) { - static const struct zd_ioreq32 ioreqs[] = { + static const struct zd_ioreq16 ioreqs[] = { { CR69, 0x28 }, {}, { CR69, 0x2a }, @@ -1230,7 +1233,7 @@ r = update_pwr_cal(chip, channel); if (r) return r; - r = zd_iowrite32a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); + r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); if (r) return r; } @@ -1252,7 +1255,7 @@ if (r) return r; dev_dbg_f(zd_chip_dev(chip), "patching value %x\n", value & 0xff); - return zd_iowrite32_locked(chip, value & 0xff, CR47); + return zd_iowrite16_locked(chip, value & 0xff, CR47); } int zd_chip_set_channel(struct zd_chip *chip, u8 channel) @@ -1295,92 +1298,63 @@ return channel; } -static u16 led_mask(int led) +int zd_chip_control_leds(struct zd_chip *chip, enum led_status status) { - switch (led) { - case 1: - return LED1; - case 2: - return LED2; - default: - return 0; - } -} + static const zd_addr_t a[] = { + FW_LINK_STATUS, + CR_LED, + }; -static int read_led_reg(struct zd_chip *chip, u16 *status) -{ - ZD_ASSERT(mutex_is_locked(&chip->mutex)); - return zd_ioread16_locked(chip, status, CR_LED); -} + int r; + u16 v[ARRAY_SIZE(a)]; + struct zd_ioreq16 ioreqs[ARRAY_SIZE(a)] = { + [0] = { FW_LINK_STATUS }, + [1] = { CR_LED }, + }; + u16 other_led; -static int write_led_reg(struct zd_chip *chip, u16 status) -{ - ZD_ASSERT(mutex_is_locked(&chip->mutex)); - return zd_iowrite16_locked(chip, status, CR_LED); -} - -int zd_chip_led_status(struct zd_chip *chip, int led, enum led_status status) -{ - int r, ret; - u16 mask = led_mask(led); - u16 reg; - - if (!mask) - return -EINVAL; mutex_lock(&chip->mutex); - r = read_led_reg(chip, ®); + r = zd_ioread16v_locked(chip, v, (const zd_addr_t *)a, ARRAY_SIZE(a)); if (r) - return r; + goto out; + + other_led = chip->link_led == LED1 ? LED2 : LED1; + switch (status) { - case LED_STATUS: - return (reg & mask) ? LED_ON : LED_OFF; case LED_OFF: - reg &= ~mask; - ret = LED_OFF; + ioreqs[0].value = FW_LINK_OFF; + ioreqs[1].value = v[1] & ~(LED1|LED2); break; - case LED_FLIP: - reg ^= mask; - ret = (reg&mask) ? LED_ON : LED_OFF; + case LED_SCANNING: + ioreqs[0].value = FW_LINK_OFF; + ioreqs[1].value = v[1] & ~other_led; + if (get_seconds() % 3 == 0) { + ioreqs[1].value &= ~chip->link_led; + } else { + ioreqs[1].value |= chip->link_led; + } break; - case LED_ON: - reg |= mask; - ret = LED_ON; + case LED_ASSOCIATED: + ioreqs[0].value = FW_LINK_TX; + ioreqs[1].value = v[1] & ~other_led; + ioreqs[1].value |= chip->link_led; break; default: - return -EINVAL; - } - r = write_led_reg(chip, reg); - if (r) { - ret = r; + r = -EINVAL; goto out; } + + if (v[0] != ioreqs[0].value || v[1] != ioreqs[1].value) { + r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs)); + if (r) + goto out; + } + r = 0; out: mutex_unlock(&chip->mutex); return r; } -int zd_chip_led_flip(struct zd_chip *chip, int led, - const unsigned int *phases_msecs, unsigned int count) -{ - int i, r; - enum led_status status; - - r = zd_chip_led_status(chip, led, LED_STATUS); - if (r) - return r; - status = r; - for (i = 0; i < count; i++) { - r = zd_chip_led_status(chip, led, LED_FLIP); - if (r < 0) - goto out; - msleep(phases_msecs[i]); - } - -out: - zd_chip_led_status(chip, led, status); - return r; -} - int zd_chip_set_basic_rates(struct zd_chip *chip, u16 cr_rates) { int r; @@ -1679,4 +1653,3 @@ return 0; } -
diff --git a/drivers/net/wireless/zd1211rw/zd_chip.h b/drivers/net/wireless/zd1211rw/zd_chip.h index 4b12508..ae59597 100644 --- a/drivers/net/wireless/zd1211rw/zd_chip.h +++ b/drivers/net/wireless/zd1211rw/zd_chip.h
@@ -428,6 +428,7 @@ /* masks for controlling LEDs */ #define LED1 0x0100 #define LED2 0x0200 +#define LED_SW 0x0400 /* Seems to indicate that the configuration is over. */ @@ -629,6 +630,10 @@ #define FW_SOFT_RESET FW_REG(4) #define FW_FLASH_CHK FW_REG(5) +#define FW_LINK_OFF 0x0 +#define FW_LINK_TX 0x1 +/* 0x2 - link led on? */ + enum { CR_BASE_OFFSET = 0x9000, FW_START_OFFSET = 0xee00, @@ -663,8 +668,11 @@ u8 pwr_int_values[E2P_CHANNEL_COUNT]; /* SetPointOFDM in the vendor driver */ u8 ofdm_cal_values[3][E2P_CHANNEL_COUNT]; - u8 pa_type:4, patch_cck_gain:1, patch_cr157:1, patch_6m_band_edge:1, - new_phy_layout:1, is_zd1211b:1; + u16 link_led; + unsigned int pa_type:4, + patch_cck_gain:1, patch_cr157:1, patch_6m_band_edge:1, + new_phy_layout:1, + is_zd1211b:1, supports_tx_led:1; }; static inline struct zd_chip *zd_usb_to_chip(struct zd_usb *usb) @@ -812,15 +820,12 @@ int zd_chip_unlock_phy_regs(struct zd_chip *chip); enum led_status { - LED_OFF = 0, - LED_ON = 1, - LED_FLIP = 2, - LED_STATUS = 3, + LED_OFF = 0, + LED_SCANNING = 1, + LED_ASSOCIATED = 2, }; -int zd_chip_led_status(struct zd_chip *chip, int led, enum led_status status); -int zd_chip_led_flip(struct zd_chip *chip, int led, - const unsigned int *phases_msecs, unsigned int count); +int zd_chip_control_leds(struct zd_chip *chip, enum led_status status); int zd_set_beacon_interval(struct zd_chip *chip, u32 interval);
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.c b/drivers/net/wireless/zd1211rw/zd_mac.c index 1989f1c..2d12837 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.c +++ b/drivers/net/wireless/zd1211rw/zd_mac.c
@@ -33,6 +33,10 @@ static void ieee_init(struct ieee80211_device *ieee); static void softmac_init(struct ieee80211softmac_device *sm); +static void housekeeping_init(struct zd_mac *mac); +static void housekeeping_enable(struct zd_mac *mac); +static void housekeeping_disable(struct zd_mac *mac); + int zd_mac_init(struct zd_mac *mac, struct net_device *netdev, struct usb_interface *intf) @@ -46,6 +50,7 @@ ieee_init(ieee); softmac_init(ieee80211_priv(netdev)); zd_chip_init(&mac->chip, netdev, intf); + housekeeping_init(mac); return 0; } @@ -178,6 +183,7 @@ if (r < 0) goto disable_rx; + housekeeping_enable(mac); ieee80211softmac_start(netdev); return 0; disable_rx: @@ -204,6 +210,7 @@ */ zd_chip_disable_rx(chip); + housekeeping_disable(mac); ieee80211softmac_stop(netdev); zd_chip_disable_hwint(chip); @@ -1080,3 +1087,46 @@ } } #endif /* DEBUG */ + +#define LINK_LED_WORK_DELAY HZ + +static void link_led_handler(void *p) +{ + struct zd_mac *mac = p; + struct zd_chip *chip = &mac->chip; + struct ieee80211softmac_device *sm = ieee80211_priv(mac->netdev); + int is_associated; + int r; + + spin_lock_irq(&mac->lock); + is_associated = sm->associated != 0; + spin_unlock_irq(&mac->lock); + + r = zd_chip_control_leds(chip, + is_associated ? LED_ASSOCIATED : LED_SCANNING); + if (r) + dev_err(zd_mac_dev(mac), "zd_chip_control_leds error %d\n", r); + + queue_delayed_work(zd_workqueue, &mac->housekeeping.link_led_work, + LINK_LED_WORK_DELAY); +} + +static void housekeeping_init(struct zd_mac *mac) +{ + INIT_WORK(&mac->housekeeping.link_led_work, link_led_handler, mac); +} + +static void housekeeping_enable(struct zd_mac *mac) +{ + dev_dbg_f(zd_mac_dev(mac), "\n"); + queue_delayed_work(zd_workqueue, &mac->housekeeping.link_led_work, + 0); +} + +static void housekeeping_disable(struct zd_mac *mac) +{ + dev_dbg_f(zd_mac_dev(mac), "\n"); + cancel_rearming_delayed_workqueue(zd_workqueue, + &mac->housekeeping.link_led_work); + zd_chip_control_leds(&mac->chip, LED_OFF); +}
diff --git a/drivers/net/wireless/zd1211rw/zd_mac.h b/drivers/net/wireless/zd1211rw/zd_mac.h index 29b51fd..b8ea3de 100644 --- a/drivers/net/wireless/zd1211rw/zd_mac.h +++ b/drivers/net/wireless/zd1211rw/zd_mac.h
@@ -120,6 +120,10 @@ MAC_FIXED_CHANNEL = 0x01, }; +struct housekeeping { + struct work_struct link_led_work; +}; + #define ZD_MAC_STATS_BUFFER_SIZE 16 struct zd_mac { @@ -128,6 +132,7 @@ struct net_device *netdev; /* Unlocked reading possible */ struct iw_statistics iw_stats; + struct housekeeping housekeeping; unsigned int stats_count; u8 qual_buffer[ZD_MAC_STATS_BUFFER_SIZE]; u8 rssi_buffer[ZD_MAC_STATS_BUFFER_SIZE];
diff --git a/drivers/net/wireless/zd1211rw/zd_netdev.c b/drivers/net/wireless/zd1211rw/zd_netdev.c index 440ef24..af3a7b3 100644 --- a/drivers/net/wireless/zd1211rw/zd_netdev.c +++ b/drivers/net/wireless/zd1211rw/zd_netdev.c
@@ -82,7 +82,7 @@ union iwreq_data *req, char *extra) { strcpy(extra, "zd1211"); - req->data.length = strlen(extra) + 1; + req->data.length = strlen(extra); req->data.flags = 1; return 0; }
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c index 31027e5..5c265ad 100644 --- a/drivers/net/wireless/zd1211rw/zd_usb.c +++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -24,6 +24,7 @@ #include <linux/errno.h> #include <linux/skbuff.h> #include <linux/usb.h> +#include <linux/workqueue.h> #include <net/ieee80211.h> #include "zd_def.h" @@ -1112,12 +1113,20 @@ .disconnect = disconnect, }; +struct workqueue_struct *zd_workqueue; + static int __init usb_init(void) { int r; pr_debug("usb_init()\n"); + zd_workqueue = create_singlethread_workqueue(driver.name); + if (zd_workqueue == NULL) { + printk(KERN_ERR "%s: couldn't create workqueue\n", driver.name); + return -ENOMEM; + } + r = usb_register(&driver); if (r) { printk(KERN_ERR "usb_register() failed. Error number %d\n", r); @@ -1132,6 +1141,7 @@ { pr_debug("usb_exit()\n"); usb_deregister(&driver); + destroy_workqueue(zd_workqueue); } module_init(usb_init);
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.h b/drivers/net/wireless/zd1211rw/zd_usb.h index ded39de..e81a2d3 100644 --- a/drivers/net/wireless/zd1211rw/zd_usb.h +++ b/drivers/net/wireless/zd1211rw/zd_usb.h
@@ -238,4 +238,6 @@ int zd_usb_rfwrite(struct zd_usb *usb, u32 value, u8 bits); +extern struct workqueue_struct *zd_workqueue; + #endif /* _ZD_USB_H */
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c index 71c2da2..5756401 100644 --- a/drivers/oprofile/oprofilefs.c +++ b/drivers/oprofile/oprofilefs.c
@@ -31,7 +31,6 @@ inode->i_mode = mode; inode->i_uid = 0; inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; } @@ -110,8 +109,8 @@ static int default_open(struct inode * inode, struct file * filp) { - if (inode->u.generic_ip) - filp->private_data = inode->u.generic_ip; + if (inode->i_private) + filp->private_data = inode->i_private; return 0; } @@ -158,7 +157,7 @@ if (!d) return -EFAULT; - d->d_inode->u.generic_ip = val; + d->d_inode->i_private = val; return 0; } @@ -171,7 +170,7 @@ if (!d) return -EFAULT; - d->d_inode->u.generic_ip = val; + d->d_inode->i_private = val; return 0; } @@ -197,7 +196,7 @@ if (!d) return -EFAULT; - d->d_inode->u.generic_ip = val; + d->d_inode->i_private = val; return 0; }
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index 4d762fc..c27e782 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig
@@ -17,6 +17,31 @@ If you don't know what to do here, say N. +config PCI_MULTITHREAD_PROBE + bool "PCI Multi-threaded probe (EXPERIMENTAL)" + depends on PCI && EXPERIMENTAL + help + Say Y here if you want the PCI core to spawn a new thread for + every PCI device that is probed. This can cause a huge + speedup in boot times on multiprocessor machines, and even a + smaller speedup on single processor machines. + + But it can also cause lots of bad things to happen. A number + of PCI drivers can not properly handle running in this way, + some will just not work properly at all, while others might + decide to blow up power supplies with a huge load all at once, + so use this option at your own risk. + + It is very unwise to use this option if you are not using a + boot process that can handle devices being created in any + order. A program that can create persistant block and network + device names (like udev) is a good idea if you wish to use + this option. + + Again, use this option at your own risk, you have been warned! + + When in doubt, say N. + config PCI_DEBUG bool "PCI Debugging" depends on PCI && DEBUG_KERNEL
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 5f7db9d..aadaa3c 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c
@@ -77,9 +77,12 @@ * This adds a single pci device to the global * device list and adds sysfs and procfs entries */ -void __devinit pci_bus_add_device(struct pci_dev *dev) +int __devinit pci_bus_add_device(struct pci_dev *dev) { - device_add(&dev->dev); + int retval; + retval = device_add(&dev->dev); + if (retval) + return retval; down_write(&pci_bus_sem); list_add_tail(&dev->global_list, &pci_devices); @@ -87,6 +90,7 @@ pci_proc_attach_device(dev); pci_create_sysfs_dev_files(dev); + return 0; } /** @@ -104,6 +108,7 @@ void __devinit pci_bus_add_devices(struct pci_bus *bus) { struct pci_dev *dev; + int retval; list_for_each_entry(dev, &bus->devices, bus_list) { /* @@ -112,7 +117,9 @@ */ if (!list_empty(&dev->global_list)) continue; - pci_bus_add_device(dev); + retval = pci_bus_add_device(dev); + if (retval) + dev_err(&dev->dev, "Error adding device, continuing\n"); } list_for_each_entry(dev, &bus->devices, bus_list) { @@ -129,10 +136,13 @@ list_add_tail(&dev->subordinate->node, &dev->bus->children); up_write(&pci_bus_sem); - } + } pci_bus_add_devices(dev->subordinate); - - sysfs_create_link(&dev->subordinate->class_dev.kobj, &dev->dev.kobj, "bridge"); + retval = sysfs_create_link(&dev->subordinate->class_dev.kobj, + &dev->dev.kobj, "bridge"); + if (retval) + dev_err(&dev->dev, "Error creating sysfs " + "bridge symlink, continuing...\n"); } } }
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h index be104ec..7fff07e 100644 --- a/drivers/pci/hotplug/acpiphp.h +++ b/drivers/pci/hotplug/acpiphp.h
@@ -150,6 +150,11 @@ struct module *owner; }; +struct acpiphp_ioapic { + struct pci_dev *dev; + u32 gsi_base; + struct list_head list; +}; /* PCI bus bridge HID */ #define ACPI_PCI_HOST_HID "PNP0A03"
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index ae67a8f..83e8e44 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -53,6 +53,8 @@ #include "acpiphp.h" static LIST_HEAD(bridge_list); +static LIST_HEAD(ioapic_list); +static DEFINE_SPINLOCK(ioapic_list_lock); #define MY_NAME "acpiphp_glue" @@ -797,6 +799,7 @@ struct pci_dev *pdev; u32 gsi_base; u64 phys_addr; + struct acpiphp_ioapic *ioapic; /* Evaluate _STA if present */ status = acpi_evaluate_integer(handle, "_STA", NULL, &sta); @@ -811,41 +814,107 @@ if (get_gsi_base(handle, &gsi_base)) return AE_OK; + ioapic = kmalloc(sizeof(*ioapic), GFP_KERNEL); + if (!ioapic) + return AE_NO_MEMORY; + pdev = get_apic_pci_info(handle); if (!pdev) - return AE_OK; + goto exit_kfree; - if (pci_enable_device(pdev)) { - pci_dev_put(pdev); - return AE_OK; - } + if (pci_enable_device(pdev)) + goto exit_pci_dev_put; pci_set_master(pdev); - if (pci_request_region(pdev, 0, "I/O APIC(acpiphp)")) { - pci_disable_device(pdev); - pci_dev_put(pdev); - return AE_OK; - } + if (pci_request_region(pdev, 0, "I/O APIC(acpiphp)")) + goto exit_pci_disable_device; phys_addr = pci_resource_start(pdev, 0); - if (acpi_register_ioapic(handle, phys_addr, gsi_base)) { - pci_release_region(pdev, 0); - pci_disable_device(pdev); - pci_dev_put(pdev); + if (acpi_register_ioapic(handle, phys_addr, gsi_base)) + goto exit_pci_release_region; + + ioapic->gsi_base = gsi_base; + ioapic->dev = pdev; + spin_lock(&ioapic_list_lock); + list_add_tail(&ioapic->list, &ioapic_list); + spin_unlock(&ioapic_list_lock); + + return AE_OK; + + exit_pci_release_region: + pci_release_region(pdev, 0); + exit_pci_disable_device: + pci_disable_device(pdev); + exit_pci_dev_put: + pci_dev_put(pdev); + exit_kfree: + kfree(ioapic); + + return AE_OK; +} + +static acpi_status +ioapic_remove(acpi_handle handle, u32 lvl, void *context, void **rv) +{ + acpi_status status; + unsigned long sta; + acpi_handle tmp; + u32 gsi_base; + struct acpiphp_ioapic *pos, *n, *ioapic = NULL; + + /* Evaluate _STA if present */ + status = acpi_evaluate_integer(handle, "_STA", NULL, &sta); + if (ACPI_SUCCESS(status) && sta != ACPI_STA_ALL) + return AE_CTRL_DEPTH; + + /* Scan only PCI bus scope */ + status = acpi_get_handle(handle, "_HID", &tmp); + if (ACPI_SUCCESS(status)) + return AE_CTRL_DEPTH; + + if (get_gsi_base(handle, &gsi_base)) return AE_OK; + + acpi_unregister_ioapic(handle, gsi_base); + + spin_lock(&ioapic_list_lock); + list_for_each_entry_safe(pos, n, &ioapic_list, list) { + if (pos->gsi_base != gsi_base) + continue; + ioapic = pos; + list_del(&ioapic->list); + break; } + spin_unlock(&ioapic_list_lock); + + if (!ioapic) + return AE_OK; + + pci_release_region(ioapic->dev, 0); + pci_disable_device(ioapic->dev); + pci_dev_put(ioapic->dev); + kfree(ioapic); return AE_OK; } static int acpiphp_configure_ioapics(acpi_handle handle) { + ioapic_add(handle, 0, NULL, NULL); acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, ACPI_UINT32_MAX, ioapic_add, NULL, NULL); return 0; } +static int acpiphp_unconfigure_ioapics(acpi_handle handle) +{ + ioapic_remove(handle, 0, NULL, NULL); + acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, + ACPI_UINT32_MAX, ioapic_remove, NULL, NULL); + return 0; +} + static int power_on_slot(struct acpiphp_slot *slot) { acpi_status status; @@ -997,7 +1066,7 @@ * @handle: handle to acpi namespace * */ -int acpiphp_bus_trim(acpi_handle handle) +static int acpiphp_bus_trim(acpi_handle handle) { struct acpi_device *device; int retval; @@ -1074,10 +1143,11 @@ pci_bus_assign_resources(bus); acpiphp_sanitize_bus(bus); + acpiphp_set_hpp_values(slot->bridge->handle, bus); + list_for_each_entry(func, &slot->funcs, sibling) + acpiphp_configure_ioapics(func->handle); pci_enable_bridges(bus); pci_bus_add_devices(bus); - acpiphp_set_hpp_values(slot->bridge->handle, bus); - acpiphp_configure_ioapics(slot->bridge->handle); /* associate pci_dev to our representation */ list_for_each (l, &slot->funcs) { @@ -1103,6 +1173,16 @@ return retval; } +static void disable_bridges(struct pci_bus *bus) +{ + struct pci_dev *dev; + list_for_each_entry(dev, &bus->devices, bus_list) { + if (dev->subordinate) { + disable_bridges(dev->subordinate); + pci_disable_device(dev); + } + } +} /** * disable_device - disable a slot @@ -1127,6 +1207,19 @@ func->bridge = NULL; } + if (func->pci_dev) { + pci_stop_bus_device(func->pci_dev); + if (func->pci_dev->subordinate) { + disable_bridges(func->pci_dev->subordinate); + pci_disable_device(func->pci_dev); + } + } + } + + list_for_each (l, &slot->funcs) { + func = list_entry(l, struct acpiphp_func, sibling); + + acpiphp_unconfigure_ioapics(func->handle); acpiphp_bus_trim(func->handle); /* try to remove anyway. * acpiphp_bus_add might have been failed */
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c index 317457d..d0a07d9 100644 --- a/drivers/pci/hotplug/acpiphp_ibm.c +++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -487,9 +487,7 @@ if (ACPI_FAILURE(status)) err("%s: Notification handler removal failed\n", __FUNCTION__); /* remove the /sys entries */ - if (sysfs_remove_bin_file(sysdir, &ibm_apci_table_attr)) - err("%s: removal of sysfs file apci_table failed\n", - __FUNCTION__); + sysfs_remove_bin_file(sysdir, &ibm_apci_table_attr); } module_init(ibm_acpiphp_init);
diff --git a/drivers/pci/hotplug/cpqphp_sysfs.c b/drivers/pci/hotplug/cpqphp_sysfs.c index 8b3da00..5bab666 100644 --- a/drivers/pci/hotplug/cpqphp_sysfs.c +++ b/drivers/pci/hotplug/cpqphp_sysfs.c
@@ -140,7 +140,7 @@ static int open(struct inode *inode, struct file *file) { - struct controller *ctrl = inode->u.generic_ip; + struct controller *ctrl = inode->i_private; struct ctrl_dbg *dbg; int retval = -ENOMEM;
diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c index dd2b762..05a4f0f 100644 --- a/drivers/pci/hotplug/fakephp.c +++ b/drivers/pci/hotplug/fakephp.c
@@ -176,7 +176,9 @@ struct pci_bus *bus = temp->bus; struct pci_dev *dev; int func; + int retval; u8 hdr_type; + if (!pci_read_config_byte(temp, PCI_HEADER_TYPE, &hdr_type)) { temp->hdr_type = hdr_type & 0x7f; if (!pci_find_slot(bus->number, temp->devfn)) { @@ -185,8 +187,12 @@ dbg("New device on %s function %x:%x\n", bus->name, temp->devfn >> 3, temp->devfn & 7); - pci_bus_add_device(dev); - add_slot(dev); + retval = pci_bus_add_device(dev); + if (retval) + dev_err(&dev->dev, "error adding " + "device, continuing.\n"); + else + add_slot(dev); } } /* multifunction device? */ @@ -205,8 +211,12 @@ dbg("New device on %s function %x:%x\n", bus->name, temp->devfn >> 3, temp->devfn & 7); - pci_bus_add_device(dev); - add_slot(dev); + retval = pci_bus_add_device(dev); + if (retval) + dev_err(&dev->dev, "error adding " + "device, continuing.\n"); + else + add_slot(dev); } } }
diff --git a/drivers/pci/hotplug/pci_hotplug.h b/drivers/pci/hotplug/pci_hotplug.h index e929b7c..772523d 100644 --- a/drivers/pci/hotplug/pci_hotplug.h +++ b/drivers/pci/hotplug/pci_hotplug.h
@@ -172,8 +172,8 @@ extern int pci_hp_register (struct hotplug_slot *slot); extern int pci_hp_deregister (struct hotplug_slot *slot); -extern int pci_hp_change_slot_info (struct hotplug_slot *slot, - struct hotplug_slot_info *info); +extern int __must_check pci_hp_change_slot_info (struct hotplug_slot *slot, + struct hotplug_slot_info *info); extern struct subsystem pci_hotplug_slots_subsys; /* PCI Setting Record (Type 0) */
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c index b7b378d..e2823ea 100644 --- a/drivers/pci/hotplug/pci_hotplug_core.c +++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -482,31 +482,95 @@ static int fs_add_slot (struct hotplug_slot *slot) { - if (has_power_file(slot) == 0) - sysfs_create_file(&slot->kobj, &hotplug_slot_attr_power.attr); + int retval = 0; - if (has_attention_file(slot) == 0) - sysfs_create_file(&slot->kobj, &hotplug_slot_attr_attention.attr); + if (has_power_file(slot) == 0) { + retval = sysfs_create_file(&slot->kobj, &hotplug_slot_attr_power.attr); + if (retval) + goto exit_power; + } - if (has_latch_file(slot) == 0) - sysfs_create_file(&slot->kobj, &hotplug_slot_attr_latch.attr); + if (has_attention_file(slot) == 0) { + retval = sysfs_create_file(&slot->kobj, + &hotplug_slot_attr_attention.attr); + if (retval) + goto exit_attention; + } - if (has_adapter_file(slot) == 0) - sysfs_create_file(&slot->kobj, &hotplug_slot_attr_presence.attr); + if (has_latch_file(slot) == 0) { + retval = sysfs_create_file(&slot->kobj, + &hotplug_slot_attr_latch.attr); + if (retval) + goto exit_latch; + } - if (has_address_file(slot) == 0) - sysfs_create_file(&slot->kobj, &hotplug_slot_attr_address.attr); + if (has_adapter_file(slot) == 0) { + retval = sysfs_create_file(&slot->kobj, + &hotplug_slot_attr_presence.attr); + if (retval) + goto exit_adapter; + } - if (has_max_bus_speed_file(slot) == 0) - sysfs_create_file(&slot->kobj, &hotplug_slot_attr_max_bus_speed.attr); + if (has_address_file(slot) == 0) { + retval = sysfs_create_file(&slot->kobj, + &hotplug_slot_attr_address.attr); + if (retval) + goto exit_address; + } + if (has_max_bus_speed_file(slot) == 0) { + retval = sysfs_create_file(&slot->kobj, + &hotplug_slot_attr_max_bus_speed.attr); + if (retval) + goto exit_max_speed; + } + + if (has_cur_bus_speed_file(slot) == 0) { + retval = sysfs_create_file(&slot->kobj, + &hotplug_slot_attr_cur_bus_speed.attr); + if (retval) + goto exit_cur_speed; + } + + if (has_test_file(slot) == 0) { + retval = sysfs_create_file(&slot->kobj, + &hotplug_slot_attr_test.attr); + if (retval) + goto exit_test; + } + + goto exit; + +exit_test: if (has_cur_bus_speed_file(slot) == 0) - sysfs_create_file(&slot->kobj, &hotplug_slot_attr_cur_bus_speed.attr); + sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_cur_bus_speed.attr); - if (has_test_file(slot) == 0) - sysfs_create_file(&slot->kobj, &hotplug_slot_attr_test.attr); +exit_cur_speed: + if (has_max_bus_speed_file(slot) == 0) + sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_max_bus_speed.attr); - return 0; +exit_max_speed: + if (has_address_file(slot) == 0) + sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_address.attr); + +exit_address: + if (has_adapter_file(slot) == 0) + sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_presence.attr); + +exit_adapter: + if (has_latch_file(slot) == 0) + sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_latch.attr); + +exit_latch: + if (has_attention_file(slot) == 0) + sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_attention.attr); + +exit_attention: + if (has_power_file(slot) == 0) + sysfs_remove_file(&slot->kobj, &hotplug_slot_attr_power.attr); +exit_power: +exit: + return retval; } static void fs_remove_slot (struct hotplug_slot *slot) @@ -626,8 +690,11 @@ * * Returns 0 if successful, anything else for an error. */ -int pci_hp_change_slot_info (struct hotplug_slot *slot, struct hotplug_slot_info *info) +int __must_check pci_hp_change_slot_info(struct hotplug_slot *slot, + struct hotplug_slot_info *info) { + int retval; + if ((slot == NULL) || (info == NULL)) return -ENODEV; @@ -636,32 +703,60 @@ * for the files referring to the fields that have now changed. */ if ((has_power_file(slot) == 0) && - (slot->info->power_status != info->power_status)) - sysfs_update_file(&slot->kobj, &hotplug_slot_attr_power.attr); + (slot->info->power_status != info->power_status)) { + retval = sysfs_update_file(&slot->kobj, + &hotplug_slot_attr_power.attr); + if (retval) + return retval; + } if ((has_attention_file(slot) == 0) && - (slot->info->attention_status != info->attention_status)) - sysfs_update_file(&slot->kobj, &hotplug_slot_attr_attention.attr); + (slot->info->attention_status != info->attention_status)) { + retval = sysfs_update_file(&slot->kobj, + &hotplug_slot_attr_attention.attr); + if (retval) + return retval; + } if ((has_latch_file(slot) == 0) && - (slot->info->latch_status != info->latch_status)) - sysfs_update_file(&slot->kobj, &hotplug_slot_attr_latch.attr); + (slot->info->latch_status != info->latch_status)) { + retval = sysfs_update_file(&slot->kobj, + &hotplug_slot_attr_latch.attr); + if (retval) + return retval; + } if ((has_adapter_file(slot) == 0) && - (slot->info->adapter_status != info->adapter_status)) - sysfs_update_file(&slot->kobj, &hotplug_slot_attr_presence.attr); + (slot->info->adapter_status != info->adapter_status)) { + retval = sysfs_update_file(&slot->kobj, + &hotplug_slot_attr_presence.attr); + if (retval) + return retval; + } if ((has_address_file(slot) == 0) && - (slot->info->address != info->address)) - sysfs_update_file(&slot->kobj, &hotplug_slot_attr_address.attr); + (slot->info->address != info->address)) { + retval = sysfs_update_file(&slot->kobj, + &hotplug_slot_attr_address.attr); + if (retval) + return retval; + } if ((has_max_bus_speed_file(slot) == 0) && - (slot->info->max_bus_speed != info->max_bus_speed)) - sysfs_update_file(&slot->kobj, &hotplug_slot_attr_max_bus_speed.attr); + (slot->info->max_bus_speed != info->max_bus_speed)) { + retval = sysfs_update_file(&slot->kobj, + &hotplug_slot_attr_max_bus_speed.attr); + if (retval) + return retval; + } if ((has_cur_bus_speed_file(slot) == 0) && - (slot->info->cur_bus_speed != info->cur_bus_speed)) - sysfs_update_file(&slot->kobj, &hotplug_slot_attr_cur_bus_speed.attr); + (slot->info->cur_bus_speed != info->cur_bus_speed)) { + retval = sysfs_update_file(&slot->kobj, + &hotplug_slot_attr_cur_bus_speed.attr); + if (retval) + return retval; + } memcpy (slot->info, info, sizeof (struct hotplug_slot_info));
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c index 33d1987..41290a1 100644 --- a/drivers/pci/hotplug/pciehp_ctrl.c +++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -762,14 +762,14 @@ if (rc || !getstatus) { info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number); mutex_unlock(&p_slot->ctrl->crit_sect); - return 1; + return -ENODEV; } if (MRL_SENS(p_slot->ctrl->ctrlcap)) { rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); if (rc || getstatus) { info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number); mutex_unlock(&p_slot->ctrl->crit_sect); - return 1; + return -ENODEV; } } @@ -778,7 +778,7 @@ if (rc || getstatus) { info("%s: already enabled on slot(%x)\n", __FUNCTION__, p_slot->number); mutex_unlock(&p_slot->ctrl->crit_sect); - return 1; + return -EINVAL; } } mutex_unlock(&p_slot->ctrl->crit_sect); @@ -813,7 +813,7 @@ if (ret || !getstatus) { info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number); mutex_unlock(&p_slot->ctrl->crit_sect); - return 1; + return -ENODEV; } } @@ -822,7 +822,7 @@ if (ret || getstatus) { info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number); mutex_unlock(&p_slot->ctrl->crit_sect); - return 1; + return -ENODEV; } } @@ -831,7 +831,7 @@ if (ret || !getstatus) { info("%s: already disabled slot(%x)\n", __FUNCTION__, p_slot->number); mutex_unlock(&p_slot->ctrl->crit_sect); - return 1; + return -EINVAL; } }
diff --git a/drivers/pci/hotplug/pcihp_skeleton.c b/drivers/pci/hotplug/pcihp_skeleton.c index 8ad4466..2b9e10e 100644 --- a/drivers/pci/hotplug/pcihp_skeleton.c +++ b/drivers/pci/hotplug/pcihp_skeleton.c
@@ -1,5 +1,5 @@ /* - * PCI Hot Plug Controller Skeleton Driver - 0.2 + * PCI Hot Plug Controller Skeleton Driver - 0.3 * * Copyright (C) 2001,2003 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2001,2003 IBM Corp. @@ -21,7 +21,7 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * - * This driver is to be used as a skeleton driver to be show how to interface + * This driver is to be used as a skeleton driver to show how to interface * with the pci hotplug core easily. * * Send feedback to <greg@kroah.com> @@ -58,8 +58,6 @@ #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg) #define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", MY_NAME , ## arg) - - /* local variables */ static int debug; static int num_slots; @@ -109,7 +107,6 @@ return retval; } - static int disable_slot(struct hotplug_slot *hotplug_slot) { struct slot *slot = hotplug_slot->private; @@ -342,7 +339,7 @@ info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); /* * Do specific initialization stuff for your driver here - * Like initializing your controller hardware (if any) and + * like initializing your controller hardware (if any) and * determining the number of slots you have in the system * right now. */
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h index 7208b95..c7103ac 100644 --- a/drivers/pci/hotplug/shpchp.h +++ b/drivers/pci/hotplug/shpchp.h
@@ -173,7 +173,7 @@ #define msg_button_cancel "PCI slot #%s - action canceled due to button press.\n" /* sysfs functions for the hotplug controller info */ -extern void shpchp_create_ctrl_files (struct controller *ctrl); +extern int __must_check shpchp_create_ctrl_files(struct controller *ctrl); extern int shpchp_sysfs_enable_slot(struct slot *slot); extern int shpchp_sysfs_disable_slot(struct slot *slot);
diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c index a14e7de..235c18a 100644 --- a/drivers/pci/hotplug/shpchp_core.c +++ b/drivers/pci/hotplug/shpchp_core.c
@@ -449,10 +449,14 @@ ctrl->speed = PCI_SPEED_33MHz; } - shpchp_create_ctrl_files(ctrl); + rc = shpchp_create_ctrl_files(ctrl); + if (rc) + goto err_cleanup_slots; return 0; +err_cleanup_slots: + cleanup_slots(ctrl); err_out_release_ctlr: ctrl->hpc_ops->release_ctlr(ctrl); err_out_free_ctrl:
diff --git a/drivers/pci/hotplug/shpchp_sysfs.c b/drivers/pci/hotplug/shpchp_sysfs.c index 620e113..29fa9d2 100644 --- a/drivers/pci/hotplug/shpchp_sysfs.c +++ b/drivers/pci/hotplug/shpchp_sysfs.c
@@ -91,9 +91,9 @@ } static DEVICE_ATTR (ctrl, S_IRUGO, show_ctrl, NULL); -void shpchp_create_ctrl_files (struct controller *ctrl) +int __must_check shpchp_create_ctrl_files (struct controller *ctrl) { - device_create_file (&ctrl->pci_dev->dev, &dev_attr_ctrl); + return device_create_file (&ctrl->pci_dev->dev, &dev_attr_ctrl); } void shpchp_remove_ctrl_files(struct controller *ctrl)
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index a83c1f5..27a0574 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c
@@ -45,16 +45,10 @@ return 0; } -static void msi_cache_ctor(void *p, kmem_cache_t *cache, unsigned long flags) -{ - memset(p, 0, sizeof(struct msi_desc)); -} - static int msi_cache_init(void) { - msi_cachep = kmem_cache_create("msi_cache", - sizeof(struct msi_desc), - 0, SLAB_HWCACHE_ALIGN, msi_cache_ctor, NULL); + msi_cachep = kmem_cache_create("msi_cache", sizeof(struct msi_desc), + 0, SLAB_HWCACHE_ALIGN, NULL, NULL); if (!msi_cachep) return -ENOMEM; @@ -402,11 +396,10 @@ { struct msi_desc *entry; - entry = kmem_cache_alloc(msi_cachep, SLAB_KERNEL); + entry = kmem_cache_zalloc(msi_cachep, GFP_KERNEL); if (!entry) return NULL; - memset(entry, 0, sizeof(struct msi_desc)); entry->link.tail = entry->link.head = 0; /* single message */ entry->dev = NULL; @@ -901,6 +894,33 @@ } /** + * pci_msi_supported - check whether MSI may be enabled on device + * @dev: pointer to the pci_dev data structure of MSI device function + * + * MSI must be globally enabled and supported by the device and its root + * bus. But, the root bus is not easy to find since some architectures + * have virtual busses on top of the PCI hierarchy (for instance the + * hypertransport bus), while the actual bus where MSI must be supported + * is below. So we test the MSI flag on all parent busses and assume + * that no quirk will ever set the NO_MSI flag on a non-root bus. + **/ +static +int pci_msi_supported(struct pci_dev * dev) +{ + struct pci_bus *bus; + + if (!pci_msi_enable || !dev || dev->no_msi) + return -EINVAL; + + /* check MSI flags of all parent busses */ + for (bus = dev->bus; bus; bus = bus->parent) + if (bus->bus_flags & PCI_BUS_FLAGS_NO_MSI) + return -EINVAL; + + return 0; +} + +/** * pci_enable_msi - configure device's MSI capability structure * @dev: pointer to the pci_dev data structure of MSI device function * @@ -912,19 +932,11 @@ **/ int pci_enable_msi(struct pci_dev* dev) { - struct pci_bus *bus; - int pos, temp, status = -EINVAL; + int pos, temp, status; u16 control; - if (!pci_msi_enable || !dev) - return status; - - if (dev->no_msi) - return status; - - for (bus = dev->bus; bus; bus = bus->parent) - if (bus->bus_flags & PCI_BUS_FLAGS_NO_MSI) - return -EINVAL; + if (pci_msi_supported(dev) < 0) + return -EINVAL; temp = dev->irq; @@ -1134,22 +1146,14 @@ **/ int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec) { - struct pci_bus *bus; int status, pos, nr_entries, free_vectors; int i, j, temp; u16 control; unsigned long flags; - if (!pci_msi_enable || !dev || !entries) + if (!entries || pci_msi_supported(dev) < 0) return -EINVAL; - if (dev->no_msi) - return -EINVAL; - - for (bus = dev->bus; bus; bus = bus->parent) - if (bus->bus_flags & PCI_BUS_FLAGS_NO_MSI) - return -EINVAL; - status = msi_init(); if (status < 0) return status;
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 474e9cd..b1c0c70 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c
@@ -17,6 +17,16 @@ * Registration of PCI drivers and handling of hot-pluggable devices. */ +/* multithreaded probe logic */ +static int pci_multithread_probe = +#ifdef CONFIG_PCI_MULTITHREAD_PROBE + 1; +#else + 0; +#endif +__module_param_call("", pci_multithread_probe, param_set_bool, param_get_bool, &pci_multithread_probe, 0644); + + /* * Dynamic device IDs are disabled for !CONFIG_HOTPLUG */ @@ -46,6 +56,7 @@ subdevice=PCI_ANY_ID, class=0, class_mask=0; unsigned long driver_data=0; int fields=0; + int retval = 0; fields = sscanf(buf, "%x %x %x %x %x %x %lux", &vendor, &device, &subvendor, &subdevice, @@ -72,10 +83,12 @@ spin_unlock(&pdrv->dynids.lock); if (get_driver(&pdrv->driver)) { - driver_attach(&pdrv->driver); + retval = driver_attach(&pdrv->driver); put_driver(&pdrv->driver); } + if (retval) + return retval; return count; } static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id); @@ -279,6 +292,18 @@ return i; } +static int pci_device_suspend_late(struct device * dev, pm_message_t state) +{ + struct pci_dev * pci_dev = to_pci_dev(dev); + struct pci_driver * drv = pci_dev->driver; + int i = 0; + + if (drv && drv->suspend_late) { + i = drv->suspend_late(pci_dev, state); + suspend_report_result(drv->suspend_late, i); + } + return i; +} /* * Default resume method for devices that have no driver provided resume, @@ -313,6 +338,17 @@ return error; } +static int pci_device_resume_early(struct device * dev) +{ + int error = 0; + struct pci_dev * pci_dev = to_pci_dev(dev); + struct pci_driver * drv = pci_dev->driver; + + if (drv && drv->resume_early) + error = drv->resume_early(pci_dev); + return error; +} + static void pci_device_shutdown(struct device *dev) { struct pci_dev *pci_dev = to_pci_dev(dev); @@ -386,6 +422,11 @@ drv->driver.owner = owner; drv->driver.kobj.ktype = &pci_driver_kobj_type; + if (pci_multithread_probe) + drv->driver.multithread_probe = pci_multithread_probe; + else + drv->driver.multithread_probe = drv->multithread_probe; + spin_lock_init(&drv->dynids.lock); INIT_LIST_HEAD(&drv->dynids.list); @@ -509,8 +550,10 @@ .probe = pci_device_probe, .remove = pci_device_remove, .suspend = pci_device_suspend, - .shutdown = pci_device_shutdown, + .suspend_late = pci_device_suspend_late, + .resume_early = pci_device_resume_early, .resume = pci_device_resume, + .shutdown = pci_device_shutdown, .dev_attrs = pci_dev_attrs, };
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index fdefa7d..a1d2e97 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c
@@ -117,6 +117,7 @@ const char *buf, size_t count) { struct pci_dev *pdev = to_pci_dev(dev); + int retval = 0; /* this can crash the machine when done on the "wrong" device */ if (!capable(CAP_SYS_ADMIN)) @@ -126,11 +127,53 @@ pci_disable_device(pdev); if (*buf == '1') - pci_enable_device(pdev); + retval = pci_enable_device(pdev); + if (retval) + return retval; return count; } +static ssize_t +msi_bus_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct pci_dev *pdev = to_pci_dev(dev); + + if (!pdev->subordinate) + return 0; + + return sprintf (buf, "%u\n", + !(pdev->subordinate->bus_flags & PCI_BUS_FLAGS_NO_MSI)); +} + +static ssize_t +msi_bus_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct pci_dev *pdev = to_pci_dev(dev); + + /* bad things may happen if the no_msi flag is changed + * while some drivers are loaded */ + if (!capable(CAP_SYS_ADMIN)) + return count; + + if (!pdev->subordinate) + return count; + + if (*buf == '0') { + pdev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; + dev_warn(&pdev->dev, "forced subordinate bus to not support MSI," + " bad things could happen.\n"); + } + + if (*buf == '1') { + pdev->subordinate->bus_flags &= ~PCI_BUS_FLAGS_NO_MSI; + dev_warn(&pdev->dev, "forced subordinate bus to support MSI," + " bad things could happen.\n"); + } + + return count; +} struct device_attribute pci_dev_attrs[] = { __ATTR_RO(resource), @@ -145,6 +188,7 @@ __ATTR(enable, 0600, is_enabled_show, is_enabled_store), __ATTR(broken_parity_status,(S_IRUGO|S_IWUSR), broken_parity_status_show,broken_parity_status_store), + __ATTR(msi_bus, 0644, msi_bus_show, msi_bus_store), __ATTR_NULL, }; @@ -385,15 +429,38 @@ } /** + * pci_remove_resource_files - cleanup resource files + * @dev: dev to cleanup + * + * If we created resource files for @dev, remove them from sysfs and + * free their resources. + */ +static void +pci_remove_resource_files(struct pci_dev *pdev) +{ + int i; + + for (i = 0; i < PCI_ROM_RESOURCE; i++) { + struct bin_attribute *res_attr; + + res_attr = pdev->res_attr[i]; + if (res_attr) { + sysfs_remove_bin_file(&pdev->dev.kobj, res_attr); + kfree(res_attr); + } + } +} + +/** * pci_create_resource_files - create resource files in sysfs for @dev * @dev: dev in question * * Walk the resources in @dev creating files for each resource available. */ -static void -pci_create_resource_files(struct pci_dev *pdev) +static int pci_create_resource_files(struct pci_dev *pdev) { int i; + int retval; /* Expose the PCI resources from this device as files */ for (i = 0; i < PCI_ROM_RESOURCE; i++) { @@ -416,35 +483,19 @@ res_attr->size = pci_resource_len(pdev, i); res_attr->mmap = pci_mmap_resource; res_attr->private = &pdev->resource[i]; - sysfs_create_bin_file(&pdev->dev.kobj, res_attr); + retval = sysfs_create_bin_file(&pdev->dev.kobj, res_attr); + if (retval) { + pci_remove_resource_files(pdev); + return retval; + } + } else { + return -ENOMEM; } } -} - -/** - * pci_remove_resource_files - cleanup resource files - * @dev: dev to cleanup - * - * If we created resource files for @dev, remove them from sysfs and - * free their resources. - */ -static void -pci_remove_resource_files(struct pci_dev *pdev) -{ - int i; - - for (i = 0; i < PCI_ROM_RESOURCE; i++) { - struct bin_attribute *res_attr; - - res_attr = pdev->res_attr[i]; - if (res_attr) { - sysfs_remove_bin_file(&pdev->dev.kobj, res_attr); - kfree(res_attr); - } - } + return 0; } #else /* !HAVE_PCI_MMAP */ -static inline void pci_create_resource_files(struct pci_dev *dev) { return; } +static inline int pci_create_resource_files(struct pci_dev *dev) { return 0; } static inline void pci_remove_resource_files(struct pci_dev *dev) { return; } #endif /* HAVE_PCI_MMAP */ @@ -529,22 +580,27 @@ .write = pci_write_config, }; -int pci_create_sysfs_dev_files (struct pci_dev *pdev) +int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) { + struct bin_attribute *rom_attr = NULL; + int retval; + if (!sysfs_initialized) return -EACCES; if (pdev->cfg_size < 4096) - sysfs_create_bin_file(&pdev->dev.kobj, &pci_config_attr); + retval = sysfs_create_bin_file(&pdev->dev.kobj, &pci_config_attr); else - sysfs_create_bin_file(&pdev->dev.kobj, &pcie_config_attr); + retval = sysfs_create_bin_file(&pdev->dev.kobj, &pcie_config_attr); + if (retval) + goto err; - pci_create_resource_files(pdev); + retval = pci_create_resource_files(pdev); + if (retval) + goto err_bin_file; /* If the device has a ROM, try to expose it in sysfs. */ if (pci_resource_len(pdev, PCI_ROM_RESOURCE)) { - struct bin_attribute *rom_attr; - rom_attr = kzalloc(sizeof(*rom_attr), GFP_ATOMIC); if (rom_attr) { pdev->rom_attr = rom_attr; @@ -554,13 +610,28 @@ rom_attr->attr.owner = THIS_MODULE; rom_attr->read = pci_read_rom; rom_attr->write = pci_write_rom; - sysfs_create_bin_file(&pdev->dev.kobj, rom_attr); + retval = sysfs_create_bin_file(&pdev->dev.kobj, rom_attr); + if (retval) + goto err_rom; + } else { + retval = -ENOMEM; + goto err_bin_file; } } /* add platform-specific attributes */ pcibios_add_platform_entries(pdev); - + return 0; + +err_rom: + kfree(rom_attr); +err_bin_file: + if (pdev->cfg_size < 4096) + sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr); + else + sysfs_remove_bin_file(&pdev->dev.kobj, &pcie_config_attr); +err: + return retval; } /** @@ -589,10 +660,14 @@ static int __init pci_sysfs_init(void) { struct pci_dev *pdev = NULL; - + int retval; + sysfs_initialized = 1; - for_each_pci_dev(pdev) - pci_create_sysfs_dev_files(pdev); + for_each_pci_dev(pdev) { + retval = pci_create_sysfs_dev_files(pdev); + if (retval) + return retval; + } return 0; }
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 9f79dd6..a544997 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c
@@ -432,10 +432,12 @@ case PM_EVENT_ON: return PCI_D0; case PM_EVENT_FREEZE: + case PM_EVENT_PRETHAW: + /* REVISIT both freeze and pre-thaw "should" use D0 */ case PM_EVENT_SUSPEND: return PCI_D3hot; default: - printk("They asked me for state %d\n", state.event); + printk("Unrecognized suspend event %d\n", state.event); BUG(); } return PCI_D0; @@ -443,6 +445,51 @@ EXPORT_SYMBOL(pci_choose_state); +static int pci_save_pcie_state(struct pci_dev *dev) +{ + int pos, i = 0; + struct pci_cap_saved_state *save_state; + u16 *cap; + + pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + if (pos <= 0) + return 0; + + save_state = kzalloc(sizeof(*save_state) + sizeof(u16) * 4, GFP_KERNEL); + if (!save_state) { + dev_err(&dev->dev, "Out of memory in pci_save_pcie_state\n"); + return -ENOMEM; + } + cap = (u16 *)&save_state->data[0]; + + pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &cap[i++]); + pci_read_config_word(dev, pos + PCI_EXP_LNKCTL, &cap[i++]); + pci_read_config_word(dev, pos + PCI_EXP_SLTCTL, &cap[i++]); + pci_read_config_word(dev, pos + PCI_EXP_RTCTL, &cap[i++]); + pci_add_saved_cap(dev, save_state); + return 0; +} + +static void pci_restore_pcie_state(struct pci_dev *dev) +{ + int i = 0, pos; + struct pci_cap_saved_state *save_state; + u16 *cap; + + save_state = pci_find_saved_cap(dev, PCI_CAP_ID_EXP); + pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + if (!save_state || pos <= 0) + return; + cap = (u16 *)&save_state->data[0]; + + pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, cap[i++]); + pci_write_config_word(dev, pos + PCI_EXP_LNKCTL, cap[i++]); + pci_write_config_word(dev, pos + PCI_EXP_SLTCTL, cap[i++]); + pci_write_config_word(dev, pos + PCI_EXP_RTCTL, cap[i++]); + pci_remove_saved_cap(save_state); + kfree(save_state); +} + /** * pci_save_state - save the PCI configuration space of a device before suspending * @dev: - PCI device that we're dealing with @@ -458,6 +505,8 @@ return i; if ((i = pci_save_msix_state(dev)) != 0) return i; + if ((i = pci_save_pcie_state(dev)) != 0) + return i; return 0; } @@ -471,6 +520,9 @@ int i; int val; + /* PCI Express register must be restored first */ + pci_restore_pcie_state(dev); + /* * The Base Address register should be programmed before the command * register(s) @@ -953,13 +1005,12 @@ } str = k; } - return 1; + return 0; } +early_param("pci", pci_setup); device_initcall(pci_init); -__setup("pci=", pci_setup); - #if defined(CONFIG_ISA) || defined(CONFIG_EISA) /* FIXME: Some boxes have multiple ISA bridges! */ struct pci_dev *isa_bridge;
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 08d58fc..6bf327d 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h
@@ -42,7 +42,7 @@ /* Lock for read/write access to pci device and bus lists */ extern struct rw_semaphore pci_bus_sem; -#ifdef CONFIG_X86_IO_APIC +#ifdef CONFIG_PCI_MSI extern int pci_msi_quirk; #else #define pci_msi_quirk 0
diff --git a/drivers/pci/pcie/Kconfig b/drivers/pci/pcie/Kconfig index 1012db8..0ad92a8 100644 --- a/drivers/pci/pcie/Kconfig +++ b/drivers/pci/pcie/Kconfig
@@ -34,3 +34,4 @@ When in doubt, say N. +source "drivers/pci/pcie/aer/Kconfig"
diff --git a/drivers/pci/pcie/Makefile b/drivers/pci/pcie/Makefile index 984fa87..e00fb99 100644 --- a/drivers/pci/pcie/Makefile +++ b/drivers/pci/pcie/Makefile
@@ -5,3 +5,6 @@ pcieportdrv-y := portdrv_core.o portdrv_pci.o portdrv_bus.o obj-$(CONFIG_PCIEPORTBUS) += pcieportdrv.o + +# Build PCI Express AER if needed +obj-$(CONFIG_PCIEAER) += aer/
diff --git a/drivers/pci/pcie/aer/Kconfig b/drivers/pci/pcie/aer/Kconfig new file mode 100644 index 0000000..3f37a60 --- /dev/null +++ b/drivers/pci/pcie/aer/Kconfig
@@ -0,0 +1,12 @@ +# +# PCI Express Root Port Device AER Configuration +# + +config PCIEAER + boolean "Root Port Advanced Error Reporting support" + depends on PCIEPORTBUS && ACPI + default y + help + This enables PCI Express Root Port Advanced Error Reporting + (AER) driver support. Error reporting messages sent to Root + Port will be handled by PCI Express AER driver.
diff --git a/drivers/pci/pcie/aer/Makefile b/drivers/pci/pcie/aer/Makefile new file mode 100644 index 0000000..15a4f40 --- /dev/null +++ b/drivers/pci/pcie/aer/Makefile
@@ -0,0 +1,8 @@ +# +# Makefile for PCI-Express Root Port Advanced Error Reporting Driver +# + +obj-$(CONFIG_PCIEAER) += aerdriver.o + +aerdriver-objs := aerdrv_errprint.o aerdrv_core.o aerdrv.o aerdrv_acpi.o +
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c new file mode 100644 index 0000000..0d4ac02 --- /dev/null +++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -0,0 +1,346 @@ +/* + * drivers/pci/pcie/aer/aerdrv.c + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * This file implements the AER root port service driver. The driver will + * register an irq handler. When root port triggers an AER interrupt, the irq + * handler will collect root port status and schedule a work. + * + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + * + */ + +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/pm.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/pcieport_if.h> + +#include "aerdrv.h" + +/* + * Version Information + */ +#define DRIVER_VERSION "v1.0" +#define DRIVER_AUTHOR "tom.l.nguyen@intel.com" +#define DRIVER_DESC "Root Port Advanced Error Reporting Driver" +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); + +static int __devinit aer_probe (struct pcie_device *dev, + const struct pcie_port_service_id *id ); +static void aer_remove(struct pcie_device *dev); +static int aer_suspend(struct pcie_device *dev, pm_message_t state) +{return 0;} +static int aer_resume(struct pcie_device *dev) {return 0;} +static pci_ers_result_t aer_error_detected(struct pci_dev *dev, + enum pci_channel_state error); +static void aer_error_resume(struct pci_dev *dev); +static pci_ers_result_t aer_root_reset(struct pci_dev *dev); + +/* + * PCI Express bus's AER Root service driver data structure + */ +static struct pcie_port_service_id aer_id[] = { + { + .vendor = PCI_ANY_ID, + .device = PCI_ANY_ID, + .port_type = PCIE_RC_PORT, + .service_type = PCIE_PORT_SERVICE_AER, + }, + { /* end: all zeroes */ } +}; + +static struct pci_error_handlers aer_error_handlers = { + .error_detected = aer_error_detected, + .resume = aer_error_resume, +}; + +static struct pcie_port_service_driver aerdrv = { + .name = "aer", + .id_table = &aer_id[0], + + .probe = aer_probe, + .remove = aer_remove, + + .suspend = aer_suspend, + .resume = aer_resume, + + .err_handler = &aer_error_handlers, + + .reset_link = aer_root_reset, +}; + +/** + * aer_irq - Root Port's ISR + * @irq: IRQ assigned to Root Port + * @context: pointer to Root Port data structure + * @r: pointer struct pt_regs + * + * Invoked when Root Port detects AER messages. + **/ +static irqreturn_t aer_irq(int irq, void *context, struct pt_regs * r) +{ + unsigned int status, id; + struct pcie_device *pdev = (struct pcie_device *)context; + struct aer_rpc *rpc = get_service_data(pdev); + int next_prod_idx; + unsigned long flags; + int pos; + + pos = pci_find_aer_capability(pdev->port); + /* + * Must lock access to Root Error Status Reg, Root Error ID Reg, + * and Root error producer/consumer index + */ + spin_lock_irqsave(&rpc->e_lock, flags); + + /* Read error status */ + pci_read_config_dword(pdev->port, pos + PCI_ERR_ROOT_STATUS, &status); + if (!(status & ROOT_ERR_STATUS_MASKS)) { + spin_unlock_irqrestore(&rpc->e_lock, flags); + return IRQ_NONE; + } + + /* Read error source and clear error status */ + pci_read_config_dword(pdev->port, pos + PCI_ERR_ROOT_COR_SRC, &id); + pci_write_config_dword(pdev->port, pos + PCI_ERR_ROOT_STATUS, status); + + /* Store error source for later DPC handler */ + next_prod_idx = rpc->prod_idx + 1; + if (next_prod_idx == AER_ERROR_SOURCES_MAX) + next_prod_idx = 0; + if (next_prod_idx == rpc->cons_idx) { + /* + * Error Storm Condition - possibly the same error occurred. + * Drop the error. + */ + spin_unlock_irqrestore(&rpc->e_lock, flags); + return IRQ_HANDLED; + } + rpc->e_sources[rpc->prod_idx].status = status; + rpc->e_sources[rpc->prod_idx].id = id; + rpc->prod_idx = next_prod_idx; + spin_unlock_irqrestore(&rpc->e_lock, flags); + + /* Invoke DPC handler */ + schedule_work(&rpc->dpc_handler); + + return IRQ_HANDLED; +} + +/** + * aer_alloc_rpc - allocate Root Port data structure + * @dev: pointer to the pcie_dev data structure + * + * Invoked when Root Port's AER service is loaded. + **/ +static struct aer_rpc* aer_alloc_rpc(struct pcie_device *dev) +{ + struct aer_rpc *rpc; + + if (!(rpc = (struct aer_rpc *)kmalloc(sizeof(struct aer_rpc), + GFP_KERNEL))) + return NULL; + + memset(rpc, 0, sizeof(struct aer_rpc)); + /* + * Initialize Root lock access, e_lock, to Root Error Status Reg, + * Root Error ID Reg, and Root error producer/consumer index. + */ + rpc->e_lock = SPIN_LOCK_UNLOCKED; + + rpc->rpd = dev; + INIT_WORK(&rpc->dpc_handler, aer_isr, (void *)dev); + rpc->prod_idx = rpc->cons_idx = 0; + mutex_init(&rpc->rpc_mutex); + init_waitqueue_head(&rpc->wait_release); + + /* Use PCIE bus function to store rpc into PCIE device */ + set_service_data(dev, rpc); + + return rpc; +} + +/** + * aer_remove - clean up resources + * @dev: pointer to the pcie_dev data structure + * + * Invoked when PCI Express bus unloads or AER probe fails. + **/ +static void aer_remove(struct pcie_device *dev) +{ + struct aer_rpc *rpc = get_service_data(dev); + + if (rpc) { + /* If register interrupt service, it must be free. */ + if (rpc->isr) + free_irq(dev->irq, dev); + + wait_event(rpc->wait_release, rpc->prod_idx == rpc->cons_idx); + + aer_delete_rootport(rpc); + set_service_data(dev, NULL); + } +} + +/** + * aer_probe - initialize resources + * @dev: pointer to the pcie_dev data structure + * @id: pointer to the service id data structure + * + * Invoked when PCI Express bus loads AER service driver. + **/ +static int __devinit aer_probe (struct pcie_device *dev, + const struct pcie_port_service_id *id ) +{ + int status; + struct aer_rpc *rpc; + struct device *device = &dev->device; + + /* Init */ + if ((status = aer_init(dev))) + return status; + + /* Alloc rpc data structure */ + if (!(rpc = aer_alloc_rpc(dev))) { + printk(KERN_DEBUG "%s: Alloc rpc fails on PCIE device[%s]\n", + __FUNCTION__, device->bus_id); + aer_remove(dev); + return -ENOMEM; + } + + /* Request IRQ ISR */ + if ((status = request_irq(dev->irq, aer_irq, SA_SHIRQ, "aerdrv", + dev))) { + printk(KERN_DEBUG "%s: Request ISR fails on PCIE device[%s]\n", + __FUNCTION__, device->bus_id); + aer_remove(dev); + return status; + } + + rpc->isr = 1; + + aer_enable_rootport(rpc); + + return status; +} + +/** + * aer_root_reset - reset link on Root Port + * @dev: pointer to Root Port's pci_dev data structure + * + * Invoked by Port Bus driver when performing link reset at Root Port. + **/ +static pci_ers_result_t aer_root_reset(struct pci_dev *dev) +{ + u16 p2p_ctrl; + u32 status; + int pos; + + pos = pci_find_aer_capability(dev); + + /* Disable Root's interrupt in response to error messages */ + pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, 0); + + /* Assert Secondary Bus Reset */ + pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &p2p_ctrl); + p2p_ctrl |= PCI_CB_BRIDGE_CTL_CB_RESET; + pci_write_config_word(dev, PCI_BRIDGE_CONTROL, p2p_ctrl); + + /* De-assert Secondary Bus Reset */ + p2p_ctrl &= ~PCI_CB_BRIDGE_CTL_CB_RESET; + pci_write_config_word(dev, PCI_BRIDGE_CONTROL, p2p_ctrl); + + /* + * System software must wait for at least 100ms from the end + * of a reset of one or more device before it is permitted + * to issue Configuration Requests to those devices. + */ + msleep(200); + printk(KERN_DEBUG "Complete link reset at Root[%s]\n", dev->dev.bus_id); + + /* Enable Root Port's interrupt in response to error messages */ + pci_read_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, &status); + pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, status); + pci_write_config_dword(dev, + pos + PCI_ERR_ROOT_COMMAND, + ROOT_PORT_INTR_ON_MESG_MASK); + + return PCI_ERS_RESULT_RECOVERED; +} + +/** + * aer_error_detected - update severity status + * @dev: pointer to Root Port's pci_dev data structure + * @error: error severity being notified by port bus + * + * Invoked by Port Bus driver during error recovery. + **/ +static pci_ers_result_t aer_error_detected(struct pci_dev *dev, + enum pci_channel_state error) +{ + /* Root Port has no impact. Always recovers. */ + return PCI_ERS_RESULT_CAN_RECOVER; +} + +/** + * aer_error_resume - clean up corresponding error status bits + * @dev: pointer to Root Port's pci_dev data structure + * + * Invoked by Port Bus driver during nonfatal recovery. + **/ +static void aer_error_resume(struct pci_dev *dev) +{ + int pos; + u32 status, mask; + u16 reg16; + + /* Clean up Root device status */ + pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, ®16); + pci_write_config_word(dev, pos + PCI_EXP_DEVSTA, reg16); + + /* Clean AER Root Error Status */ + pos = pci_find_aer_capability(dev); + pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status); + pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &mask); + if (dev->error_state == pci_channel_io_normal) + status &= ~mask; /* Clear corresponding nonfatal bits */ + else + status &= mask; /* Clear corresponding fatal bits */ + pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, status); +} + +/** + * aer_service_init - register AER root service driver + * + * Invoked when AER root service driver is loaded. + **/ +static int __init aer_service_init(void) +{ + return pcie_port_service_register(&aerdrv); +} + +/** + * aer_service_exit - unregister AER root service driver + * + * Invoked when AER root service driver is unloaded. + **/ +static void __exit aer_service_exit(void) +{ + pcie_port_service_unregister(&aerdrv); +} + +module_init(aer_service_init); +module_exit(aer_service_exit);
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h new file mode 100644 index 0000000..daf0cad --- /dev/null +++ b/drivers/pci/pcie/aer/aerdrv.h
@@ -0,0 +1,125 @@ +/* + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + * + */ + +#ifndef _AERDRV_H_ +#define _AERDRV_H_ + +#include <linux/pcieport_if.h> +#include <linux/aer.h> + +#define AER_NONFATAL 0 +#define AER_FATAL 1 +#define AER_CORRECTABLE 2 +#define AER_UNCORRECTABLE 4 +#define AER_ERROR_MASK 0x001fffff +#define AER_ERROR(d) (d & AER_ERROR_MASK) + +#define OSC_METHOD_RUN_SUCCESS 0 +#define OSC_METHOD_NOT_SUPPORTED 1 +#define OSC_METHOD_RUN_FAILURE 2 + +/* Root Error Status Register Bits */ +#define ROOT_ERR_STATUS_MASKS 0x0f + +#define SYSTEM_ERROR_INTR_ON_MESG_MASK (PCI_EXP_RTCTL_SECEE| \ + PCI_EXP_RTCTL_SENFEE| \ + PCI_EXP_RTCTL_SEFEE) +#define ROOT_PORT_INTR_ON_MESG_MASK (PCI_ERR_ROOT_CMD_COR_EN| \ + PCI_ERR_ROOT_CMD_NONFATAL_EN| \ + PCI_ERR_ROOT_CMD_FATAL_EN) +#define ERR_COR_ID(d) (d & 0xffff) +#define ERR_UNCOR_ID(d) (d >> 16) + +#define AER_SUCCESS 0 +#define AER_UNSUCCESS 1 +#define AER_ERROR_SOURCES_MAX 100 + +#define AER_LOG_TLP_MASKS (PCI_ERR_UNC_POISON_TLP| \ + PCI_ERR_UNC_ECRC| \ + PCI_ERR_UNC_UNSUP| \ + PCI_ERR_UNC_COMP_ABORT| \ + PCI_ERR_UNC_UNX_COMP| \ + PCI_ERR_UNC_MALF_TLP) + +/* AER Error Info Flags */ +#define AER_TLP_HEADER_VALID_FLAG 0x00000001 +#define AER_MULTI_ERROR_VALID_FLAG 0x00000002 + +#define ERR_CORRECTABLE_ERROR_MASK 0x000031c1 +#define ERR_UNCORRECTABLE_ERROR_MASK 0x001ff010 + +struct header_log_regs { + unsigned int dw0; + unsigned int dw1; + unsigned int dw2; + unsigned int dw3; +}; + +struct aer_err_info { + int severity; /* 0:NONFATAL | 1:FATAL | 2:COR */ + int flags; + unsigned int status; /* COR/UNCOR Error Status */ + struct header_log_regs tlp; /* TLP Header */ +}; + +struct aer_err_source { + unsigned int status; + unsigned int id; +}; + +struct aer_rpc { + struct pcie_device *rpd; /* Root Port device */ + struct work_struct dpc_handler; + struct aer_err_source e_sources[AER_ERROR_SOURCES_MAX]; + unsigned short prod_idx; /* Error Producer Index */ + unsigned short cons_idx; /* Error Consumer Index */ + int isr; + spinlock_t e_lock; /* + * Lock access to Error Status/ID Regs + * and error producer/consumer index + */ + struct mutex rpc_mutex; /* + * only one thread could do + * recovery on the same + * root port hierachy + */ + wait_queue_head_t wait_release; +}; + +struct aer_broadcast_data { + enum pci_channel_state state; + enum pci_ers_result result; +}; + +static inline pci_ers_result_t merge_result(enum pci_ers_result orig, + enum pci_ers_result new) +{ + switch (orig) { + case PCI_ERS_RESULT_CAN_RECOVER: + case PCI_ERS_RESULT_RECOVERED: + orig = new; + break; + case PCI_ERS_RESULT_DISCONNECT: + if (new == PCI_ERS_RESULT_NEED_RESET) + orig = new; + break; + default: + break; + } + + return orig; +} + +extern struct bus_type pcie_port_bus_type; +extern void aer_enable_rootport(struct aer_rpc *rpc); +extern void aer_delete_rootport(struct aer_rpc *rpc); +extern int aer_init(struct pcie_device *dev); +extern void aer_isr(void *context); +extern void aer_print_error(struct pci_dev *dev, struct aer_err_info *info); +extern int aer_osc_setup(struct pci_dev *dev); + +#endif //_AERDRV_H_
diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c new file mode 100644 index 0000000..fa68e89 --- /dev/null +++ b/drivers/pci/pcie/aer/aerdrv_acpi.c
@@ -0,0 +1,68 @@ +/* + * Access ACPI _OSC method + * + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + * + */ + +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/pm.h> +#include <linux/suspend.h> +#include <linux/acpi.h> +#include <linux/pci-acpi.h> +#include <linux/delay.h> +#include "aerdrv.h" + +/** + * aer_osc_setup - run ACPI _OSC method + * + * Return: + * Zero if success. Nonzero for otherwise. + * + * Invoked when PCIE bus loads AER service driver. To avoid conflict with + * BIOS AER support requires BIOS to yield AER control to OS native driver. + **/ +int aer_osc_setup(struct pci_dev *dev) +{ + int retval = OSC_METHOD_RUN_SUCCESS; + acpi_status status; + acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev); + struct pci_dev *pdev = dev; + struct pci_bus *parent; + + while (!handle) { + if (!pdev || !pdev->bus->parent) + break; + parent = pdev->bus->parent; + if (!parent->self) + /* Parent must be a host bridge */ + handle = acpi_get_pci_rootbridge_handle( + pci_domain_nr(parent), + parent->number); + else + handle = DEVICE_ACPI_HANDLE( + &(parent->self->dev)); + pdev = parent->self; + } + + if (!handle) + return OSC_METHOD_NOT_SUPPORTED; + + pci_osc_support_set(OSC_EXT_PCI_CONFIG_SUPPORT); + status = pci_osc_control_set(handle, OSC_PCI_EXPRESS_AER_CONTROL | + OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL); + if (ACPI_FAILURE(status)) { + if (status == AE_SUPPORT) + retval = OSC_METHOD_NOT_SUPPORTED; + else + retval = OSC_METHOD_RUN_FAILURE; + } + + return retval; +} +
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c new file mode 100644 index 0000000..1c7e660 --- /dev/null +++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -0,0 +1,758 @@ +/* + * drivers/pci/pcie/aer/aerdrv_core.c + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * This file implements the core part of PCI-Express AER. When an pci-express + * error is delivered, an error message will be collected and printed to + * console, then, an error recovery procedure will be executed by following + * the pci error recovery rules. + * + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + * + */ + +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/pm.h> +#include <linux/suspend.h> +#include <linux/acpi.h> +#include <linux/pci-acpi.h> +#include <linux/delay.h> +#include "aerdrv.h" + +static int forceload; +module_param(forceload, bool, 0); + +#define PCI_CFG_SPACE_SIZE (0x100) +int pci_find_aer_capability(struct pci_dev *dev) +{ + int pos; + u32 reg32 = 0; + + /* Check if it's a pci-express device */ + pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + if (!pos) + return 0; + + /* Check if it supports pci-express AER */ + pos = PCI_CFG_SPACE_SIZE; + while (pos) { + if (pci_read_config_dword(dev, pos, ®32)) + return 0; + + /* some broken boards return ~0 */ + if (reg32 == 0xffffffff) + return 0; + + if (PCI_EXT_CAP_ID(reg32) == PCI_EXT_CAP_ID_ERR) + break; + + pos = reg32 >> 20; + } + + return pos; +} + +int pci_enable_pcie_error_reporting(struct pci_dev *dev) +{ + u16 reg16 = 0; + int pos; + + pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + if (!pos) + return -EIO; + + pci_read_config_word(dev, pos+PCI_EXP_DEVCTL, ®16); + reg16 = reg16 | + PCI_EXP_DEVCTL_CERE | + PCI_EXP_DEVCTL_NFERE | + PCI_EXP_DEVCTL_FERE | + PCI_EXP_DEVCTL_URRE; + pci_write_config_word(dev, pos+PCI_EXP_DEVCTL, + reg16); + return 0; +} + +int pci_disable_pcie_error_reporting(struct pci_dev *dev) +{ + u16 reg16 = 0; + int pos; + + pos = pci_find_capability(dev, PCI_CAP_ID_EXP); + if (!pos) + return -EIO; + + pci_read_config_word(dev, pos+PCI_EXP_DEVCTL, ®16); + reg16 = reg16 & ~(PCI_EXP_DEVCTL_CERE | + PCI_EXP_DEVCTL_NFERE | + PCI_EXP_DEVCTL_FERE | + PCI_EXP_DEVCTL_URRE); + pci_write_config_word(dev, pos+PCI_EXP_DEVCTL, + reg16); + return 0; +} + +int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev) +{ + int pos; + u32 status, mask; + + pos = pci_find_aer_capability(dev); + if (!pos) + return -EIO; + + pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status); + pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &mask); + if (dev->error_state == pci_channel_io_normal) + status &= ~mask; /* Clear corresponding nonfatal bits */ + else + status &= mask; /* Clear corresponding fatal bits */ + pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, status); + + return 0; +} + +static int find_device_iter(struct device *device, void *data) +{ + struct pci_dev *dev; + u16 id = *(unsigned long *)data; + u8 secondary, subordinate, d_bus = id >> 8; + + if (device->bus == &pci_bus_type) { + dev = to_pci_dev(device); + if (id == ((dev->bus->number << 8) | dev->devfn)) { + /* + * Device ID match + */ + *(unsigned long*)data = (unsigned long)device; + return 1; + } + + /* + * If device is P2P, check if it is an upstream? + */ + if (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE) { + pci_read_config_byte(dev, PCI_SECONDARY_BUS, + &secondary); + pci_read_config_byte(dev, PCI_SUBORDINATE_BUS, + &subordinate); + if (d_bus >= secondary && d_bus <= subordinate) { + *(unsigned long*)data = (unsigned long)device; + return 1; + } + } + } + + return 0; +} + +/** + * find_source_device - search through device hierarchy for source device + * @p_dev: pointer to Root Port pci_dev data structure + * @id: device ID of agent who sends an error message to this Root Port + * + * Invoked when error is detected at the Root Port. + **/ +static struct device* find_source_device(struct pci_dev *parent, u16 id) +{ + struct pci_dev *dev = parent; + struct device *device; + unsigned long device_addr; + int status; + + /* Is Root Port an agent that sends error message? */ + if (id == ((dev->bus->number << 8) | dev->devfn)) + return &dev->dev; + + do { + device_addr = id; + if ((status = device_for_each_child(&dev->dev, + &device_addr, find_device_iter))) { + device = (struct device*)device_addr; + dev = to_pci_dev(device); + if (id == ((dev->bus->number << 8) | dev->devfn)) + return device; + } + }while (status); + + return NULL; +} + +static void report_error_detected(struct pci_dev *dev, void *data) +{ + pci_ers_result_t vote; + struct pci_error_handlers *err_handler; + struct aer_broadcast_data *result_data; + result_data = (struct aer_broadcast_data *) data; + + dev->error_state = result_data->state; + + if (!dev->driver || + !dev->driver->err_handler || + !dev->driver->err_handler->error_detected) { + if (result_data->state == pci_channel_io_frozen && + !(dev->hdr_type & PCI_HEADER_TYPE_BRIDGE)) { + /* + * In case of fatal recovery, if one of down- + * stream device has no driver. We might be + * unable to recover because a later insmod + * of a driver for this device is unaware of + * its hw state. + */ + printk(KERN_DEBUG "Device ID[%s] has %s\n", + dev->dev.bus_id, (dev->driver) ? + "no AER-aware driver" : "no driver"); + } + return; + } + + err_handler = dev->driver->err_handler; + vote = err_handler->error_detected(dev, result_data->state); + result_data->result = merge_result(result_data->result, vote); + return; +} + +static void report_mmio_enabled(struct pci_dev *dev, void *data) +{ + pci_ers_result_t vote; + struct pci_error_handlers *err_handler; + struct aer_broadcast_data *result_data; + result_data = (struct aer_broadcast_data *) data; + + if (!dev->driver || + !dev->driver->err_handler || + !dev->driver->err_handler->mmio_enabled) + return; + + err_handler = dev->driver->err_handler; + vote = err_handler->mmio_enabled(dev); + result_data->result = merge_result(result_data->result, vote); + return; +} + +static void report_slot_reset(struct pci_dev *dev, void *data) +{ + pci_ers_result_t vote; + struct pci_error_handlers *err_handler; + struct aer_broadcast_data *result_data; + result_data = (struct aer_broadcast_data *) data; + + if (!dev->driver || + !dev->driver->err_handler || + !dev->driver->err_handler->slot_reset) + return; + + err_handler = dev->driver->err_handler; + vote = err_handler->slot_reset(dev); + result_data->result = merge_result(result_data->result, vote); + return; +} + +static void report_resume(struct pci_dev *dev, void *data) +{ + struct pci_error_handlers *err_handler; + + dev->error_state = pci_channel_io_normal; + + if (!dev->driver || + !dev->driver->err_handler || + !dev->driver->err_handler->slot_reset) + return; + + err_handler = dev->driver->err_handler; + err_handler->resume(dev); + return; +} + +/** + * broadcast_error_message - handle message broadcast to downstream drivers + * @device: pointer to from where in a hierarchy message is broadcasted down + * @api: callback to be broadcasted + * @state: error state + * + * Invoked during error recovery process. Once being invoked, the content + * of error severity will be broadcasted to all downstream drivers in a + * hierarchy in question. + **/ +static pci_ers_result_t broadcast_error_message(struct pci_dev *dev, + enum pci_channel_state state, + char *error_mesg, + void (*cb)(struct pci_dev *, void *)) +{ + struct aer_broadcast_data result_data; + + printk(KERN_DEBUG "Broadcast %s message\n", error_mesg); + result_data.state = state; + if (cb == report_error_detected) + result_data.result = PCI_ERS_RESULT_CAN_RECOVER; + else + result_data.result = PCI_ERS_RESULT_RECOVERED; + + if (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE) { + /* + * If the error is reported by a bridge, we think this error + * is related to the downstream link of the bridge, so we + * do error recovery on all subordinates of the bridge instead + * of the bridge and clear the error status of the bridge. + */ + if (cb == report_error_detected) + dev->error_state = state; + pci_walk_bus(dev->subordinate, cb, &result_data); + if (cb == report_resume) { + pci_cleanup_aer_uncorrect_error_status(dev); + dev->error_state = pci_channel_io_normal; + } + } + else { + /* + * If the error is reported by an end point, we think this + * error is related to the upstream link of the end point. + */ + pci_walk_bus(dev->bus, cb, &result_data); + } + + return result_data.result; +} + +struct find_aer_service_data { + struct pcie_port_service_driver *aer_driver; + int is_downstream; +}; + +static int find_aer_service_iter(struct device *device, void *data) +{ + struct device_driver *driver; + struct pcie_port_service_driver *service_driver; + struct pcie_device *pcie_dev; + struct find_aer_service_data *result; + + result = (struct find_aer_service_data *) data; + + if (device->bus == &pcie_port_bus_type) { + pcie_dev = to_pcie_device(device); + if (pcie_dev->id.port_type == PCIE_SW_DOWNSTREAM_PORT) + result->is_downstream = 1; + + driver = device->driver; + if (driver) { + service_driver = to_service_driver(driver); + if (service_driver->id_table->service_type == + PCIE_PORT_SERVICE_AER) { + result->aer_driver = service_driver; + return 1; + } + } + } + + return 0; +} + +static void find_aer_service(struct pci_dev *dev, + struct find_aer_service_data *data) +{ + int retval; + retval = device_for_each_child(&dev->dev, data, find_aer_service_iter); +} + +static pci_ers_result_t reset_link(struct pcie_device *aerdev, + struct pci_dev *dev) +{ + struct pci_dev *udev; + pci_ers_result_t status; + struct find_aer_service_data data; + + if (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE) + udev = dev; + else + udev= dev->bus->self; + + data.is_downstream = 0; + data.aer_driver = NULL; + find_aer_service(udev, &data); + + /* + * Use the aer driver of the error agent firstly. + * If it hasn't the aer driver, use the root port's + */ + if (!data.aer_driver || !data.aer_driver->reset_link) { + if (data.is_downstream && + aerdev->device.driver && + to_service_driver(aerdev->device.driver)->reset_link) { + data.aer_driver = + to_service_driver(aerdev->device.driver); + } else { + printk(KERN_DEBUG "No link-reset support to Device ID" + "[%s]\n", + dev->dev.bus_id); + return PCI_ERS_RESULT_DISCONNECT; + } + } + + status = data.aer_driver->reset_link(udev); + if (status != PCI_ERS_RESULT_RECOVERED) { + printk(KERN_DEBUG "Link reset at upstream Device ID" + "[%s] failed\n", + udev->dev.bus_id); + return PCI_ERS_RESULT_DISCONNECT; + } + + return status; +} + +/** + * do_recovery - handle nonfatal/fatal error recovery process + * @aerdev: pointer to a pcie_device data structure of root port + * @dev: pointer to a pci_dev data structure of agent detecting an error + * @severity: error severity type + * + * Invoked when an error is nonfatal/fatal. Once being invoked, broadcast + * error detected message to all downstream drivers within a hierarchy in + * question and return the returned code. + **/ +static pci_ers_result_t do_recovery(struct pcie_device *aerdev, + struct pci_dev *dev, + int severity) +{ + pci_ers_result_t status, result = PCI_ERS_RESULT_RECOVERED; + enum pci_channel_state state; + + if (severity == AER_FATAL) + state = pci_channel_io_frozen; + else + state = pci_channel_io_normal; + + status = broadcast_error_message(dev, + state, + "error_detected", + report_error_detected); + + if (severity == AER_FATAL) { + result = reset_link(aerdev, dev); + if (result != PCI_ERS_RESULT_RECOVERED) { + /* TODO: Should panic here? */ + return result; + } + } + + if (status == PCI_ERS_RESULT_CAN_RECOVER) + status = broadcast_error_message(dev, + state, + "mmio_enabled", + report_mmio_enabled); + + if (status == PCI_ERS_RESULT_NEED_RESET) { + /* + * TODO: Should call platform-specific + * functions to reset slot before calling + * drivers' slot_reset callbacks? + */ + status = broadcast_error_message(dev, + state, + "slot_reset", + report_slot_reset); + } + + if (status == PCI_ERS_RESULT_RECOVERED) + broadcast_error_message(dev, + state, + "resume", + report_resume); + + return status; +} + +/** + * handle_error_source - handle logging error into an event log + * @aerdev: pointer to pcie_device data structure of the root port + * @dev: pointer to pci_dev data structure of error source device + * @info: comprehensive error information + * + * Invoked when an error being detected by Root Port. + **/ +static void handle_error_source(struct pcie_device * aerdev, + struct pci_dev *dev, + struct aer_err_info info) +{ + pci_ers_result_t status = 0; + int pos; + + if (info.severity == AER_CORRECTABLE) { + /* + * Correctable error does not need software intevention. + * No need to go through error recovery process. + */ + pos = pci_find_aer_capability(dev); + if (pos) + pci_write_config_dword(dev, pos + PCI_ERR_COR_STATUS, + info.status); + } else { + status = do_recovery(aerdev, dev, info.severity); + if (status == PCI_ERS_RESULT_RECOVERED) { + printk(KERN_DEBUG "AER driver successfully recovered\n"); + } else { + /* TODO: Should kernel panic here? */ + printk(KERN_DEBUG "AER driver didn't recover\n"); + } + } +} + +/** + * aer_enable_rootport - enable Root Port's interrupts when receiving messages + * @rpc: pointer to a Root Port data structure + * + * Invoked when PCIE bus loads AER service driver. + **/ +void aer_enable_rootport(struct aer_rpc *rpc) +{ + struct pci_dev *pdev = rpc->rpd->port; + int pos, aer_pos; + u16 reg16; + u32 reg32; + + pos = pci_find_capability(pdev, PCI_CAP_ID_EXP); + /* Clear PCIE Capability's Device Status */ + pci_read_config_word(pdev, pos+PCI_EXP_DEVSTA, ®16); + pci_write_config_word(pdev, pos+PCI_EXP_DEVSTA, reg16); + + /* Disable system error generation in response to error messages */ + pci_read_config_word(pdev, pos + PCI_EXP_RTCTL, ®16); + reg16 &= ~(SYSTEM_ERROR_INTR_ON_MESG_MASK); + pci_write_config_word(pdev, pos + PCI_EXP_RTCTL, reg16); + + aer_pos = pci_find_aer_capability(pdev); + /* Clear error status */ + pci_read_config_dword(pdev, aer_pos + PCI_ERR_ROOT_STATUS, ®32); + pci_write_config_dword(pdev, aer_pos + PCI_ERR_ROOT_STATUS, reg32); + pci_read_config_dword(pdev, aer_pos + PCI_ERR_COR_STATUS, ®32); + pci_write_config_dword(pdev, aer_pos + PCI_ERR_COR_STATUS, reg32); + pci_read_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, ®32); + pci_write_config_dword(pdev, aer_pos + PCI_ERR_UNCOR_STATUS, reg32); + + /* Enable Root Port device reporting error itself */ + pci_read_config_word(pdev, pos+PCI_EXP_DEVCTL, ®16); + reg16 = reg16 | + PCI_EXP_DEVCTL_CERE | + PCI_EXP_DEVCTL_NFERE | + PCI_EXP_DEVCTL_FERE | + PCI_EXP_DEVCTL_URRE; + pci_write_config_word(pdev, pos+PCI_EXP_DEVCTL, + reg16); + + /* Enable Root Port's interrupt in response to error messages */ + pci_write_config_dword(pdev, + aer_pos + PCI_ERR_ROOT_COMMAND, + ROOT_PORT_INTR_ON_MESG_MASK); +} + +/** + * disable_root_aer - disable Root Port's interrupts when receiving messages + * @rpc: pointer to a Root Port data structure + * + * Invoked when PCIE bus unloads AER service driver. + **/ +static void disable_root_aer(struct aer_rpc *rpc) +{ + struct pci_dev *pdev = rpc->rpd->port; + u32 reg32; + int pos; + + pos = pci_find_aer_capability(pdev); + /* Disable Root's interrupt in response to error messages */ + pci_write_config_dword(pdev, pos + PCI_ERR_ROOT_COMMAND, 0); + + /* Clear Root's error status reg */ + pci_read_config_dword(pdev, pos + PCI_ERR_ROOT_STATUS, ®32); + pci_write_config_dword(pdev, pos + PCI_ERR_ROOT_STATUS, reg32); +} + +/** + * get_e_source - retrieve an error source + * @rpc: pointer to the root port which holds an error + * + * Invoked by DPC handler to consume an error. + **/ +static struct aer_err_source* get_e_source(struct aer_rpc *rpc) +{ + struct aer_err_source *e_source; + unsigned long flags; + + /* Lock access to Root error producer/consumer index */ + spin_lock_irqsave(&rpc->e_lock, flags); + if (rpc->prod_idx == rpc->cons_idx) { + spin_unlock_irqrestore(&rpc->e_lock, flags); + return NULL; + } + e_source = &rpc->e_sources[rpc->cons_idx]; + rpc->cons_idx++; + if (rpc->cons_idx == AER_ERROR_SOURCES_MAX) + rpc->cons_idx = 0; + spin_unlock_irqrestore(&rpc->e_lock, flags); + + return e_source; +} + +static int get_device_error_info(struct pci_dev *dev, struct aer_err_info *info) +{ + int pos; + + pos = pci_find_aer_capability(dev); + + /* The device might not support AER */ + if (!pos) + return AER_SUCCESS; + + if (info->severity == AER_CORRECTABLE) { + pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS, + &info->status); + if (!(info->status & ERR_CORRECTABLE_ERROR_MASK)) + return AER_UNSUCCESS; + } else if (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE || + info->severity == AER_NONFATAL) { + + /* Link is still healthy for IO reads */ + pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, + &info->status); + if (!(info->status & ERR_UNCORRECTABLE_ERROR_MASK)) + return AER_UNSUCCESS; + + if (info->status & AER_LOG_TLP_MASKS) { + info->flags |= AER_TLP_HEADER_VALID_FLAG; + pci_read_config_dword(dev, + pos + PCI_ERR_HEADER_LOG, &info->tlp.dw0); + pci_read_config_dword(dev, + pos + PCI_ERR_HEADER_LOG + 4, &info->tlp.dw1); + pci_read_config_dword(dev, + pos + PCI_ERR_HEADER_LOG + 8, &info->tlp.dw2); + pci_read_config_dword(dev, + pos + PCI_ERR_HEADER_LOG + 12, &info->tlp.dw3); + } + } + + return AER_SUCCESS; +} + +/** + * aer_isr_one_error - consume an error detected by root port + * @p_device: pointer to error root port service device + * @e_src: pointer to an error source + **/ +static void aer_isr_one_error(struct pcie_device *p_device, + struct aer_err_source *e_src) +{ + struct device *s_device; + struct aer_err_info e_info = {0, 0, 0,}; + int i; + u16 id; + + /* + * There is a possibility that both correctable error and + * uncorrectable error being logged. Report correctable error first. + */ + for (i = 1; i & ROOT_ERR_STATUS_MASKS ; i <<= 2) { + if (i > 4) + break; + if (!(e_src->status & i)) + continue; + + /* Init comprehensive error information */ + if (i & PCI_ERR_ROOT_COR_RCV) { + id = ERR_COR_ID(e_src->id); + e_info.severity = AER_CORRECTABLE; + } else { + id = ERR_UNCOR_ID(e_src->id); + e_info.severity = ((e_src->status >> 6) & 1); + } + if (e_src->status & + (PCI_ERR_ROOT_MULTI_COR_RCV | + PCI_ERR_ROOT_MULTI_UNCOR_RCV)) + e_info.flags |= AER_MULTI_ERROR_VALID_FLAG; + if (!(s_device = find_source_device(p_device->port, id))) { + printk(KERN_DEBUG "%s->can't find device of ID%04x\n", + __FUNCTION__, id); + continue; + } + if (get_device_error_info(to_pci_dev(s_device), &e_info) == + AER_SUCCESS) { + aer_print_error(to_pci_dev(s_device), &e_info); + handle_error_source(p_device, + to_pci_dev(s_device), + e_info); + } + } +} + +/** + * aer_isr - consume errors detected by root port + * @context: pointer to a private data of pcie device + * + * Invoked, as DPC, when root port records new detected error + **/ +void aer_isr(void *context) +{ + struct pcie_device *p_device = (struct pcie_device *) context; + struct aer_rpc *rpc = get_service_data(p_device); + struct aer_err_source *e_src; + + mutex_lock(&rpc->rpc_mutex); + e_src = get_e_source(rpc); + while (e_src) { + aer_isr_one_error(p_device, e_src); + e_src = get_e_source(rpc); + } + mutex_unlock(&rpc->rpc_mutex); + + wake_up(&rpc->wait_release); +} + +/** + * aer_delete_rootport - disable root port aer and delete service data + * @rpc: pointer to a root port device being deleted + * + * Invoked when AER service unloaded on a specific Root Port + **/ +void aer_delete_rootport(struct aer_rpc *rpc) +{ + /* Disable root port AER itself */ + disable_root_aer(rpc); + + kfree(rpc); +} + +/** + * aer_init - provide AER initialization + * @dev: pointer to AER pcie device + * + * Invoked when AER service driver is loaded. + **/ +int aer_init(struct pcie_device *dev) +{ + int status; + + /* Run _OSC Method */ + status = aer_osc_setup(dev->port); + + if(status != OSC_METHOD_RUN_SUCCESS) { + printk(KERN_DEBUG "%s: AER service init fails - %s\n", + __FUNCTION__, + (status == OSC_METHOD_NOT_SUPPORTED) ? + "No ACPI _OSC support" : "Run ACPI _OSC fails"); + + if (!forceload) + return status; + } + + return AER_SUCCESS; +} + +EXPORT_SYMBOL_GPL(pci_find_aer_capability); +EXPORT_SYMBOL_GPL(pci_enable_pcie_error_reporting); +EXPORT_SYMBOL_GPL(pci_disable_pcie_error_reporting); +EXPORT_SYMBOL_GPL(pci_cleanup_aer_uncorrect_error_status); +
diff --git a/drivers/pci/pcie/aer/aerdrv_errprint.c b/drivers/pci/pcie/aer/aerdrv_errprint.c new file mode 100644 index 0000000..3933d4f3 --- /dev/null +++ b/drivers/pci/pcie/aer/aerdrv_errprint.c
@@ -0,0 +1,248 @@ +/* + * drivers/pci/pcie/aer/aerdrv_errprint.c + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Format error messages and print them to console. + * + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + * + */ + +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/pm.h> +#include <linux/suspend.h> + +#include "aerdrv.h" + +#define AER_AGENT_RECEIVER 0 +#define AER_AGENT_REQUESTER 1 +#define AER_AGENT_COMPLETER 2 +#define AER_AGENT_TRANSMITTER 3 + +#define AER_AGENT_REQUESTER_MASK (PCI_ERR_UNC_COMP_TIME| \ + PCI_ERR_UNC_UNSUP) + +#define AER_AGENT_COMPLETER_MASK PCI_ERR_UNC_COMP_ABORT + +#define AER_AGENT_TRANSMITTER_MASK(t, e) (e & (PCI_ERR_COR_REP_ROLL| \ + ((t == AER_CORRECTABLE) ? PCI_ERR_COR_REP_TIMER: 0))) + +#define AER_GET_AGENT(t, e) \ + ((e & AER_AGENT_COMPLETER_MASK) ? AER_AGENT_COMPLETER : \ + (e & AER_AGENT_REQUESTER_MASK) ? AER_AGENT_REQUESTER : \ + (AER_AGENT_TRANSMITTER_MASK(t, e)) ? AER_AGENT_TRANSMITTER : \ + AER_AGENT_RECEIVER) + +#define AER_PHYSICAL_LAYER_ERROR_MASK PCI_ERR_COR_RCVR +#define AER_DATA_LINK_LAYER_ERROR_MASK(t, e) \ + (PCI_ERR_UNC_DLP| \ + PCI_ERR_COR_BAD_TLP| \ + PCI_ERR_COR_BAD_DLLP| \ + PCI_ERR_COR_REP_ROLL| \ + ((t == AER_CORRECTABLE) ? \ + PCI_ERR_COR_REP_TIMER: 0)) + +#define AER_PHYSICAL_LAYER_ERROR 0 +#define AER_DATA_LINK_LAYER_ERROR 1 +#define AER_TRANSACTION_LAYER_ERROR 2 + +#define AER_GET_LAYER_ERROR(t, e) \ + ((e & AER_PHYSICAL_LAYER_ERROR_MASK) ? \ + AER_PHYSICAL_LAYER_ERROR : \ + (e & AER_DATA_LINK_LAYER_ERROR_MASK(t, e)) ? \ + AER_DATA_LINK_LAYER_ERROR : \ + AER_TRANSACTION_LAYER_ERROR) + +/* + * AER error strings + */ +static char* aer_error_severity_string[] = { + "Uncorrected (Non-Fatal)", + "Uncorrected (Fatal)", + "Corrected" +}; + +static char* aer_error_layer[] = { + "Physical Layer", + "Data Link Layer", + "Transaction Layer" +}; +static char* aer_correctable_error_string[] = { + "Receiver Error ", /* Bit Position 0 */ + NULL, + NULL, + NULL, + NULL, + NULL, + "Bad TLP ", /* Bit Position 6 */ + "Bad DLLP ", /* Bit Position 7 */ + "RELAY_NUM Rollover ", /* Bit Position 8 */ + NULL, + NULL, + NULL, + "Replay Timer Timeout ", /* Bit Position 12 */ + "Advisory Non-Fatal ", /* Bit Position 13 */ + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, +}; + +static char* aer_uncorrectable_error_string[] = { + NULL, + NULL, + NULL, + NULL, + "Data Link Protocol ", /* Bit Position 4 */ + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + "Poisoned TLP ", /* Bit Position 12 */ + "Flow Control Protocol ", /* Bit Position 13 */ + "Completion Timeout ", /* Bit Position 14 */ + "Completer Abort ", /* Bit Position 15 */ + "Unexpected Completion ", /* Bit Position 16 */ + "Receiver Overflow ", /* Bit Position 17 */ + "Malformed TLP ", /* Bit Position 18 */ + "ECRC ", /* Bit Position 19 */ + "Unsupported Request ", /* Bit Position 20 */ + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, +}; + +static char* aer_agent_string[] = { + "Receiver ID", + "Requester ID", + "Completer ID", + "Transmitter ID" +}; + +static char * aer_get_error_source_name(int severity, + unsigned int status, + char errmsg_buff[]) +{ + int i; + char * errmsg = NULL; + + for (i = 0; i < 32; i++) { + if (!(status & (1 << i))) + continue; + + if (severity == AER_CORRECTABLE) + errmsg = aer_correctable_error_string[i]; + else + errmsg = aer_uncorrectable_error_string[i]; + + if (!errmsg) { + sprintf(errmsg_buff, "Unknown Error Bit %2d ", i); + errmsg = errmsg_buff; + } + + break; + } + + return errmsg; +} + +static DEFINE_SPINLOCK(logbuf_lock); +static char errmsg_buff[100]; +void aer_print_error(struct pci_dev *dev, struct aer_err_info *info) +{ + char * errmsg; + int err_layer, agent; + char * loglevel; + + if (info->severity == AER_CORRECTABLE) + loglevel = KERN_WARNING; + else + loglevel = KERN_ERR; + + printk("%s+------ PCI-Express Device Error ------+\n", loglevel); + printk("%sError Severity\t\t: %s\n", loglevel, + aer_error_severity_string[info->severity]); + + if ( info->status == 0) { + printk("%sPCIE Bus Error type\t: (Unaccessible)\n", loglevel); + printk("%sUnaccessible Received\t: %s\n", loglevel, + info->flags & AER_MULTI_ERROR_VALID_FLAG ? + "Multiple" : "First"); + printk("%sUnregistered Agent ID\t: %04x\n", loglevel, + (dev->bus->number << 8) | dev->devfn); + } else { + err_layer = AER_GET_LAYER_ERROR(info->severity, info->status); + printk("%sPCIE Bus Error type\t: %s\n", loglevel, + aer_error_layer[err_layer]); + + spin_lock(&logbuf_lock); + errmsg = aer_get_error_source_name(info->severity, + info->status, + errmsg_buff); + printk("%s%s\t: %s\n", loglevel, errmsg, + info->flags & AER_MULTI_ERROR_VALID_FLAG ? + "Multiple" : "First"); + spin_unlock(&logbuf_lock); + + agent = AER_GET_AGENT(info->severity, info->status); + printk("%s%s\t\t: %04x\n", loglevel, + aer_agent_string[agent], + (dev->bus->number << 8) | dev->devfn); + + printk("%sVendorID=%04xh, DeviceID=%04xh," + " Bus=%02xh, Device=%02xh, Function=%02xh\n", + loglevel, + dev->vendor, + dev->device, + dev->bus->number, + PCI_SLOT(dev->devfn), + PCI_FUNC(dev->devfn)); + + if (info->flags & AER_TLP_HEADER_VALID_FLAG) { + unsigned char *tlp = (unsigned char *) &info->tlp; + printk("%sTLB Header:\n", loglevel); + printk("%s%02x%02x%02x%02x %02x%02x%02x%02x" + " %02x%02x%02x%02x %02x%02x%02x%02x\n", + loglevel, + *(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp, + *(tlp + 7), *(tlp + 6), *(tlp + 5), *(tlp + 4), + *(tlp + 11), *(tlp + 10), *(tlp + 9), + *(tlp + 8), *(tlp + 15), *(tlp + 14), + *(tlp + 13), *(tlp + 12)); + } + } +} +
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h index 1d317d2..67fcd17 100644 --- a/drivers/pci/pcie/portdrv.h +++ b/drivers/pci/pcie/portdrv.h
@@ -39,7 +39,7 @@ extern int pcie_port_device_resume(struct pci_dev *dev); #endif extern void pcie_port_device_remove(struct pci_dev *dev); -extern void pcie_port_bus_register(void); +extern int pcie_port_bus_register(void); extern void pcie_port_bus_unregister(void); #endif /* _PORTDRV_H_ */
diff --git a/drivers/pci/pcie/portdrv_bus.c b/drivers/pci/pcie/portdrv_bus.c index 3e84b50..3f09768 100644 --- a/drivers/pci/pcie/portdrv_bus.c +++ b/drivers/pci/pcie/portdrv_bus.c
@@ -24,6 +24,7 @@ .suspend = pcie_port_bus_suspend, .resume = pcie_port_bus_resume, }; +EXPORT_SYMBOL_GPL(pcie_port_bus_type); static int pcie_port_bus_match(struct device *dev, struct device_driver *drv) {
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c index 55c6622..bd6615b 100644 --- a/drivers/pci/pcie/portdrv_core.c +++ b/drivers/pci/pcie/portdrv_core.c
@@ -6,6 +6,7 @@ * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com) */ +#include <linux/compiler.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/kernel.h> @@ -339,8 +340,7 @@ int pcie_port_device_suspend(struct pci_dev *dev, pm_message_t state) { - device_for_each_child(&dev->dev, &state, suspend_iter); - return 0; + return device_for_each_child(&dev->dev, &state, suspend_iter); } static int resume_iter(struct device *dev, void *data) @@ -358,8 +358,7 @@ int pcie_port_device_resume(struct pci_dev *dev) { - device_for_each_child(&dev->dev, NULL, resume_iter); - return 0; + return device_for_each_child(&dev->dev, NULL, resume_iter); } #endif @@ -402,9 +401,9 @@ pci_disable_msi(dev); } -void pcie_port_bus_register(void) +int __must_check pcie_port_bus_register(void) { - bus_register(&pcie_port_bus_type); + return bus_register(&pcie_port_bus_type); } void pcie_port_bus_unregister(void)
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c index 478d0d2..037690e 100644 --- a/drivers/pci/pcie/portdrv_pci.c +++ b/drivers/pci/pcie/portdrv_pci.c
@@ -14,8 +14,10 @@ #include <linux/init.h> #include <linux/slab.h> #include <linux/pcieport_if.h> +#include <linux/aer.h> #include "portdrv.h" +#include "aer/aerdrv.h" /* * Version Information @@ -30,6 +32,43 @@ /* global data */ static const char device_name[] = "pcieport-driver"; +static int pcie_portdrv_save_config(struct pci_dev *dev) +{ + return pci_save_state(dev); +} + +#ifdef CONFIG_PM +static int pcie_portdrv_restore_config(struct pci_dev *dev) +{ + int retval; + + pci_restore_state(dev); + retval = pci_enable_device(dev); + if (retval) + return retval; + pci_set_master(dev); + return 0; +} + +static int pcie_portdrv_suspend(struct pci_dev *dev, pm_message_t state) +{ + int ret = pcie_port_device_suspend(dev, state); + + if (!ret) + ret = pcie_portdrv_save_config(dev); + return ret; +} + +static int pcie_portdrv_resume(struct pci_dev *dev) +{ + pcie_portdrv_restore_config(dev); + return pcie_port_device_resume(dev); +} +#else +#define pcie_portdrv_suspend NULL +#define pcie_portdrv_resume NULL +#endif + /* * pcie_portdrv_probe - Probe PCI-Express port devices * @dev: PCI-Express port device being probed @@ -61,6 +100,10 @@ return -ENOMEM; } + pcie_portdrv_save_config(dev); + + pci_enable_pcie_error_reporting(dev); + return 0; } @@ -70,39 +113,151 @@ kfree(pci_get_drvdata(dev)); } -#ifdef CONFIG_PM -static int pcie_portdrv_save_config(struct pci_dev *dev) +static int error_detected_iter(struct device *device, void *data) { - return pci_save_state(dev); -} + struct pcie_device *pcie_device; + struct pcie_port_service_driver *driver; + struct aer_broadcast_data *result_data; + pci_ers_result_t status; -static int pcie_portdrv_restore_config(struct pci_dev *dev) -{ - int retval; + result_data = (struct aer_broadcast_data *) data; - pci_restore_state(dev); - retval = pci_enable_device(dev); - if (retval) - return retval; - pci_set_master(dev); + if (device->bus == &pcie_port_bus_type && device->driver) { + driver = to_service_driver(device->driver); + if (!driver || + !driver->err_handler || + !driver->err_handler->error_detected) + return 0; + + pcie_device = to_pcie_device(device); + + /* Forward error detected message to service drivers */ + status = driver->err_handler->error_detected( + pcie_device->port, + result_data->state); + result_data->result = + merge_result(result_data->result, status); + } + return 0; } -static int pcie_portdrv_suspend (struct pci_dev *dev, pm_message_t state) +static pci_ers_result_t pcie_portdrv_error_detected(struct pci_dev *dev, + enum pci_channel_state error) { - int ret = pcie_port_device_suspend(dev, state); + struct aer_broadcast_data result_data = + {error, PCI_ERS_RESULT_CAN_RECOVER}; + int retval; - if (!ret) - ret = pcie_portdrv_save_config(dev); - return ret; + /* can not fail */ + retval = device_for_each_child(&dev->dev, &result_data, error_detected_iter); + + return result_data.result; } -static int pcie_portdrv_resume (struct pci_dev *dev) +static int mmio_enabled_iter(struct device *device, void *data) { - pcie_portdrv_restore_config(dev); - return pcie_port_device_resume(dev); + struct pcie_device *pcie_device; + struct pcie_port_service_driver *driver; + pci_ers_result_t status, *result; + + result = (pci_ers_result_t *) data; + + if (device->bus == &pcie_port_bus_type && device->driver) { + driver = to_service_driver(device->driver); + if (driver && + driver->err_handler && + driver->err_handler->mmio_enabled) { + pcie_device = to_pcie_device(device); + + /* Forward error message to service drivers */ + status = driver->err_handler->mmio_enabled( + pcie_device->port); + *result = merge_result(*result, status); + } + } + + return 0; } -#endif + +static pci_ers_result_t pcie_portdrv_mmio_enabled(struct pci_dev *dev) +{ + pci_ers_result_t status = PCI_ERS_RESULT_RECOVERED; + int retval; + + /* get true return value from &status */ + retval = device_for_each_child(&dev->dev, &status, mmio_enabled_iter); + return status; +} + +static int slot_reset_iter(struct device *device, void *data) +{ + struct pcie_device *pcie_device; + struct pcie_port_service_driver *driver; + pci_ers_result_t status, *result; + + result = (pci_ers_result_t *) data; + + if (device->bus == &pcie_port_bus_type && device->driver) { + driver = to_service_driver(device->driver); + if (driver && + driver->err_handler && + driver->err_handler->slot_reset) { + pcie_device = to_pcie_device(device); + + /* Forward error message to service drivers */ + status = driver->err_handler->slot_reset( + pcie_device->port); + *result = merge_result(*result, status); + } + } + + return 0; +} + +static pci_ers_result_t pcie_portdrv_slot_reset(struct pci_dev *dev) +{ + pci_ers_result_t status; + int retval; + + /* If fatal, restore cfg space for possible link reset at upstream */ + if (dev->error_state == pci_channel_io_frozen) { + pcie_portdrv_restore_config(dev); + pci_enable_pcie_error_reporting(dev); + } + + /* get true return value from &status */ + retval = device_for_each_child(&dev->dev, &status, slot_reset_iter); + + return status; +} + +static int resume_iter(struct device *device, void *data) +{ + struct pcie_device *pcie_device; + struct pcie_port_service_driver *driver; + + if (device->bus == &pcie_port_bus_type && device->driver) { + driver = to_service_driver(device->driver); + if (driver && + driver->err_handler && + driver->err_handler->resume) { + pcie_device = to_pcie_device(device); + + /* Forward error message to service drivers */ + driver->err_handler->resume(pcie_device->port); + } + } + + return 0; +} + +static void pcie_portdrv_err_resume(struct pci_dev *dev) +{ + int retval; + /* nothing to do with error value, if it ever happens */ + retval = device_for_each_child(&dev->dev, NULL, resume_iter); +} /* * LINUX Device Driver Model @@ -114,6 +269,13 @@ }; MODULE_DEVICE_TABLE(pci, port_pci_ids); +static struct pci_error_handlers pcie_portdrv_err_handler = { + .error_detected = pcie_portdrv_error_detected, + .mmio_enabled = pcie_portdrv_mmio_enabled, + .slot_reset = pcie_portdrv_slot_reset, + .resume = pcie_portdrv_err_resume, +}; + static struct pci_driver pcie_portdrv = { .name = (char *)device_name, .id_table = &port_pci_ids[0], @@ -121,20 +283,25 @@ .probe = pcie_portdrv_probe, .remove = pcie_portdrv_remove, -#ifdef CONFIG_PM .suspend = pcie_portdrv_suspend, .resume = pcie_portdrv_resume, -#endif /* PM */ + + .err_handler = &pcie_portdrv_err_handler, }; static int __init pcie_portdrv_init(void) { - int retval = 0; + int retval; - pcie_port_bus_register(); + retval = pcie_port_bus_register(); + if (retval) { + printk(KERN_WARNING "PCIE: bus_register error: %d\n", retval); + goto out; + } retval = pci_register_driver(&pcie_portdrv); if (retval) pcie_port_bus_unregister(); + out: return retval; }
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index c5a58d1..a3b0a5e 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c
@@ -339,6 +339,7 @@ { struct pci_bus *child; int i; + int retval; /* * Allocate a new bus, and inherit stuff from the parent.. @@ -356,8 +357,13 @@ child->class_dev.class = &pcibus_class; sprintf(child->class_dev.class_id, "%04x:%02x", pci_domain_nr(child), busnr); - class_device_register(&child->class_dev); - class_device_create_file(&child->class_dev, &class_device_attr_cpuaffinity); + retval = class_device_register(&child->class_dev); + if (retval) + goto error_register; + retval = class_device_create_file(&child->class_dev, + &class_device_attr_cpuaffinity); + if (retval) + goto error_file_create; /* * Set up the primary, secondary and subordinate @@ -375,6 +381,12 @@ bridge->subordinate = child; return child; + +error_file_create: + class_device_unregister(&child->class_dev); +error_register: + kfree(child); + return NULL; } struct pci_bus * __devinit pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index def78a2..08cd86a 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c
@@ -577,8 +577,6 @@ } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_ANY_ID, quirk_ioapic_rmw ); -int pci_msi_quirk; - #define AMD8131_revA0 0x01 #define AMD8131_revB0 0x11 #define AMD8131_MISC 0x40 @@ -587,12 +585,6 @@ { unsigned char revid, tmp; - if (dev->subordinate) { - printk(KERN_WARNING "PCI: MSI quirk detected. " - "PCI_BUS_FLAGS_NO_MSI set for subordinate bus.\n"); - dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; - } - if (nr_ioapics == 0) return; @@ -605,13 +597,6 @@ } } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_ioapic); - -static void __init quirk_svw_msi(struct pci_dev *dev) -{ - pci_msi_quirk = 1; - printk(KERN_WARNING "PCI: MSI quirk detected. pci_msi_quirk set.\n"); -} -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_svw_msi ); #endif /* CONFIG_X86_IO_APIC */ @@ -1690,6 +1675,95 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, quirk_nvidia_ck804_pcie_aer_ext_cap); +#ifdef CONFIG_PCI_MSI +/* To disable MSI globally */ +int pci_msi_quirk; + +/* The Serverworks PCI-X chipset does not support MSI. We cannot easily rely + * on setting PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually + * some other busses controlled by the chipset even if Linux is not aware of it. + * Instead of setting the flag on all busses in the machine, simply disable MSI + * globally. + */ +static void __init quirk_svw_msi(struct pci_dev *dev) +{ + pci_msi_quirk = 1; + printk(KERN_WARNING "PCI: MSI quirk detected. pci_msi_quirk set.\n"); +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_svw_msi); + +/* Disable MSI on chipsets that are known to not support it */ +static void __devinit quirk_disable_msi(struct pci_dev *dev) +{ + if (dev->subordinate) { + printk(KERN_WARNING "PCI: MSI quirk detected. " + "PCI_BUS_FLAGS_NO_MSI set for %s subordinate bus.\n", + pci_name(dev)); + dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; + } +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi); + +/* Go through the list of Hypertransport capabilities and + * return 1 if a HT MSI capability is found and enabled */ +static int __devinit msi_ht_cap_enabled(struct pci_dev *dev) +{ + u8 pos; + int ttl; + for (pos = pci_find_capability(dev, PCI_CAP_ID_HT), ttl = 48; + pos && ttl; + pos = pci_find_next_capability(dev, pos, PCI_CAP_ID_HT), ttl--) { + u32 cap_hdr; + /* MSI mapping section according to Hypertransport spec */ + if (pci_read_config_dword(dev, pos, &cap_hdr) == 0 + && (cap_hdr & 0xf8000000) == 0xa8000000 /* MSI mapping */) { + printk(KERN_INFO "PCI: Found HT MSI mapping on %s with capability %s\n", + pci_name(dev), cap_hdr & 0x10000 ? "enabled" : "disabled"); + return (cap_hdr & 0x10000) != 0; /* MSI mapping cap enabled */ + } + } + return 0; +} + +/* Check the hypertransport MSI mapping to know whether MSI is enabled or not */ +static void __devinit quirk_msi_ht_cap(struct pci_dev *dev) +{ + if (dev->subordinate && !msi_ht_cap_enabled(dev)) { + printk(KERN_WARNING "PCI: MSI quirk detected. " + "MSI disabled on chipset %s.\n", + pci_name(dev)); + dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; + } +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE, + quirk_msi_ht_cap); + +/* The nVidia CK804 chipset may have 2 HT MSI mappings. + * MSI are supported if the MSI capability set in any of these mappings. + */ +static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev) +{ + struct pci_dev *pdev; + + if (!dev->subordinate) + return; + + /* check HT MSI cap on this chipset and the root one. + * a single one having MSI is enough to be sure that MSI are supported. + */ + pdev = pci_find_slot(dev->bus->number, 0); + if (dev->subordinate && !msi_ht_cap_enabled(dev) + && !msi_ht_cap_enabled(pdev)) { + printk(KERN_WARNING "PCI: MSI quirk detected. " + "MSI disabled on chipset %s.\n", + pci_name(dev)); + dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; + } +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, + quirk_nvidia_ck804_msi_ht_cap); +#endif /* CONFIG_PCI_MSI */ + EXPORT_SYMBOL(pcie_mch_quirk); #ifdef CONFIG_HOTPLUG EXPORT_SYMBOL(pci_fixup_device);
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c index 99ffbd4..430281b 100644 --- a/drivers/pci/remove.c +++ b/drivers/pci/remove.c
@@ -16,8 +16,11 @@ } } -static void pci_destroy_dev(struct pci_dev *dev) +static void pci_stop_dev(struct pci_dev *dev) { + if (!dev->global_list.next) + return; + if (!list_empty(&dev->global_list)) { pci_proc_detach_device(dev); pci_remove_sysfs_dev_files(dev); @@ -27,6 +30,11 @@ dev->global_list.next = dev->global_list.prev = NULL; up_write(&pci_bus_sem); } +} + +static void pci_destroy_dev(struct pci_dev *dev) +{ + pci_stop_dev(dev); /* Remove the device from the device lists, and prevent any further * list accesses from this device */ @@ -119,5 +127,32 @@ } } +static void pci_stop_bus_devices(struct pci_bus *bus) +{ + struct list_head *l, *n; + + list_for_each_safe(l, n, &bus->devices) { + struct pci_dev *dev = pci_dev_b(l); + pci_stop_bus_device(dev); + } +} + +/** + * pci_stop_bus_device - stop a PCI device and any children + * @dev: the device to stop + * + * Stop a PCI device (detach the driver, remove from the global list + * and so on). This also stop any subordinate buses and children in a + * depth-first manner. + */ +void pci_stop_bus_device(struct pci_dev *dev) +{ + if (dev->subordinate) + pci_stop_bus_devices(dev->subordinate); + + pci_stop_dev(dev); +} + EXPORT_SYMBOL(pci_remove_bus_device); EXPORT_SYMBOL(pci_remove_behind_bridge); +EXPORT_SYMBOL_GPL(pci_stop_bus_device);
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 47c1071..5440491 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c
@@ -55,12 +55,19 @@ list_for_each_entry(dev, &bus->devices, bus_list) { u16 class = dev->class >> 8; - /* Don't touch classless devices or host bridges or ioapics. */ + /* Don't touch classless devices or host bridges. */ if (class == PCI_CLASS_NOT_DEFINED || - class == PCI_CLASS_BRIDGE_HOST || - class == PCI_CLASS_SYSTEM_PIC) + class == PCI_CLASS_BRIDGE_HOST) continue; + /* Don't touch ioapics if it has the assigned resources. */ + if (class == PCI_CLASS_SYSTEM_PIC) { + res = &dev->resource[0]; + if (res[0].start || res[1].start || res[2].start || + res[3].start || res[4].start || res[5].start) + continue; + } + pdev_sort_resources(dev, &head); }
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 7ff1d88..33a7b72 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig
@@ -238,6 +238,16 @@ To compile this driver as a module, choose M here: the module will be called rtc-sa1100. +config RTC_DRV_SH + tristate "SuperH On-Chip RTC" + depends on RTC_CLASS && SUPERH + help + Say Y here to enable support for the on-chip RTC found in + most SuperH processors. + + To compile this driver as a module, choose M here: the + module will be called rtc-sh. + config RTC_DRV_VR41XX tristate "NEC VR41XX" depends on RTC_CLASS && CPU_VR41XX
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index bbcfb09..e72d467 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile
@@ -31,3 +31,4 @@ obj-$(CONFIG_RTC_DRV_MAX6902) += rtc-max6902.o obj-$(CONFIG_RTC_DRV_V3020) += rtc-v3020.o obj-$(CONFIG_RTC_DRV_AT91) += rtc-at91.o +obj-$(CONFIG_RTC_DRV_SH) += rtc-sh.o
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c new file mode 100644 index 0000000..d2ce0c8 --- /dev/null +++ b/drivers/rtc/rtc-sh.c
@@ -0,0 +1,467 @@ +/* + * SuperH On-Chip RTC Support + * + * Copyright (C) 2006 Paul Mundt + * + * Based on the old arch/sh/kernel/cpu/rtc.c by: + * + * Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org> + * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/bcd.h> +#include <linux/rtc.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/seq_file.h> +#include <linux/interrupt.h> +#include <linux/spinlock.h> +#include <asm/io.h> + +#ifdef CONFIG_CPU_SH3 +#define rtc_reg_size sizeof(u16) +#define RTC_BIT_INVERTED 0 /* No bug on SH7708, SH7709A */ +#elif defined(CONFIG_CPU_SH4) +#define rtc_reg_size sizeof(u32) +#define RTC_BIT_INVERTED 0x40 /* bug on SH7750, SH7750S */ +#endif + +#define RTC_REG(r) ((r) * rtc_reg_size) + +#define R64CNT RTC_REG(0) +#define RSECCNT RTC_REG(1) +#define RMINCNT RTC_REG(2) +#define RHRCNT RTC_REG(3) +#define RWKCNT RTC_REG(4) +#define RDAYCNT RTC_REG(5) +#define RMONCNT RTC_REG(6) +#define RYRCNT RTC_REG(7) +#define RSECAR RTC_REG(8) +#define RMINAR RTC_REG(9) +#define RHRAR RTC_REG(10) +#define RWKAR RTC_REG(11) +#define RDAYAR RTC_REG(12) +#define RMONAR RTC_REG(13) +#define RCR1 RTC_REG(14) +#define RCR2 RTC_REG(15) + +/* RCR1 Bits */ +#define RCR1_CF 0x80 /* Carry Flag */ +#define RCR1_CIE 0x10 /* Carry Interrupt Enable */ +#define RCR1_AIE 0x08 /* Alarm Interrupt Enable */ +#define RCR1_AF 0x01 /* Alarm Flag */ + +/* RCR2 Bits */ +#define RCR2_PEF 0x80 /* PEriodic interrupt Flag */ +#define RCR2_PESMASK 0x70 /* Periodic interrupt Set */ +#define RCR2_RTCEN 0x08 /* ENable RTC */ +#define RCR2_ADJ 0x04 /* ADJustment (30-second) */ +#define RCR2_RESET 0x02 /* Reset bit */ +#define RCR2_START 0x01 /* Start bit */ + +struct sh_rtc { + void __iomem *regbase; + unsigned long regsize; + struct resource *res; + unsigned int alarm_irq, periodic_irq, carry_irq; + struct rtc_device *rtc_dev; + spinlock_t lock; +}; + +static irqreturn_t sh_rtc_interrupt(int irq, void *id, struct pt_regs *regs) +{ + struct platform_device *pdev = id; + struct sh_rtc *rtc = platform_get_drvdata(pdev); + unsigned int tmp, events = 0; + + spin_lock(&rtc->lock); + + tmp = readb(rtc->regbase + RCR1); + + if (tmp & RCR1_AF) + events |= RTC_AF | RTC_IRQF; + + tmp &= ~(RCR1_CF | RCR1_AF); + + writeb(tmp, rtc->regbase + RCR1); + + rtc_update_irq(&rtc->rtc_dev->class_dev, 1, events); + + spin_unlock(&rtc->lock); + + return IRQ_HANDLED; +} + +static irqreturn_t sh_rtc_periodic(int irq, void *id, struct pt_regs *regs) +{ + struct sh_rtc *rtc = dev_get_drvdata(id); + + spin_lock(&rtc->lock); + + rtc_update_irq(&rtc->rtc_dev->class_dev, 1, RTC_PF | RTC_IRQF); + + spin_unlock(&rtc->lock); + + return IRQ_HANDLED; +} + +static inline void sh_rtc_setpie(struct device *dev, unsigned int enable) +{ + struct sh_rtc *rtc = dev_get_drvdata(dev); + unsigned int tmp; + + spin_lock_irq(&rtc->lock); + + tmp = readb(rtc->regbase + RCR2); + + if (enable) { + tmp &= ~RCR2_PESMASK; + tmp |= RCR2_PEF | (2 << 4); + } else + tmp &= ~(RCR2_PESMASK | RCR2_PEF); + + writeb(tmp, rtc->regbase + RCR2); + + spin_unlock_irq(&rtc->lock); +} + +static inline void sh_rtc_setaie(struct device *dev, unsigned int enable) +{ + struct sh_rtc *rtc = dev_get_drvdata(dev); + unsigned int tmp; + + spin_lock_irq(&rtc->lock); + + tmp = readb(rtc->regbase + RCR1); + + if (enable) + tmp |= RCR1_AIE; + else + tmp &= ~RCR1_AIE; + + writeb(tmp, rtc->regbase + RCR1); + + spin_unlock_irq(&rtc->lock); +} + +static int sh_rtc_open(struct device *dev) +{ + struct sh_rtc *rtc = dev_get_drvdata(dev); + unsigned int tmp; + int ret; + + tmp = readb(rtc->regbase + RCR1); + tmp &= ~RCR1_CF; + tmp |= RCR1_CIE; + writeb(tmp, rtc->regbase + RCR1); + + ret = request_irq(rtc->periodic_irq, sh_rtc_periodic, SA_INTERRUPT, + "sh-rtc period", dev); + if (unlikely(ret)) { + dev_err(dev, "request period IRQ failed with %d, IRQ %d\n", + ret, rtc->periodic_irq); + return ret; + } + + ret = request_irq(rtc->carry_irq, sh_rtc_interrupt, SA_INTERRUPT, + "sh-rtc carry", dev); + if (unlikely(ret)) { + dev_err(dev, "request carry IRQ failed with %d, IRQ %d\n", + ret, rtc->carry_irq); + free_irq(rtc->periodic_irq, dev); + goto err_bad_carry; + } + + ret = request_irq(rtc->alarm_irq, sh_rtc_interrupt, SA_INTERRUPT, + "sh-rtc alarm", dev); + if (unlikely(ret)) { + dev_err(dev, "request alarm IRQ failed with %d, IRQ %d\n", + ret, rtc->alarm_irq); + goto err_bad_alarm; + } + + return 0; + +err_bad_alarm: + free_irq(rtc->carry_irq, dev); +err_bad_carry: + free_irq(rtc->periodic_irq, dev); + + return ret; +} + +static void sh_rtc_release(struct device *dev) +{ + struct sh_rtc *rtc = dev_get_drvdata(dev); + + sh_rtc_setpie(dev, 0); + + free_irq(rtc->periodic_irq, dev); + free_irq(rtc->carry_irq, dev); + free_irq(rtc->alarm_irq, dev); +} + +static int sh_rtc_proc(struct device *dev, struct seq_file *seq) +{ + struct sh_rtc *rtc = dev_get_drvdata(dev); + unsigned int tmp; + + tmp = readb(rtc->regbase + RCR1); + seq_printf(seq, "alarm_IRQ\t: %s\n", + (tmp & RCR1_AIE) ? "yes" : "no"); + seq_printf(seq, "carry_IRQ\t: %s\n", + (tmp & RCR1_CIE) ? "yes" : "no"); + + tmp = readb(rtc->regbase + RCR2); + seq_printf(seq, "periodic_IRQ\t: %s\n", + (tmp & RCR2_PEF) ? "yes" : "no"); + + return 0; +} + +static int sh_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +{ + unsigned int ret = -ENOIOCTLCMD; + + switch (cmd) { + case RTC_PIE_OFF: + case RTC_PIE_ON: + sh_rtc_setpie(dev, cmd == RTC_PIE_ON); + ret = 0; + break; + case RTC_AIE_OFF: + case RTC_AIE_ON: + sh_rtc_setaie(dev, cmd == RTC_AIE_ON); + ret = 0; + break; + } + + return ret; +} + +static int sh_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + struct platform_device *pdev = to_platform_device(dev); + struct sh_rtc *rtc = platform_get_drvdata(pdev); + unsigned int sec128, sec2, yr, yr100, cf_bit; + + do { + unsigned int tmp; + + spin_lock_irq(&rtc->lock); + + tmp = readb(rtc->regbase + RCR1); + tmp &= ~RCR1_CF; /* Clear CF-bit */ + tmp |= RCR1_CIE; + writeb(tmp, rtc->regbase + RCR1); + + sec128 = readb(rtc->regbase + R64CNT); + + tm->tm_sec = BCD2BIN(readb(rtc->regbase + RSECCNT)); + tm->tm_min = BCD2BIN(readb(rtc->regbase + RMINCNT)); + tm->tm_hour = BCD2BIN(readb(rtc->regbase + RHRCNT)); + tm->tm_wday = BCD2BIN(readb(rtc->regbase + RWKCNT)); + tm->tm_mday = BCD2BIN(readb(rtc->regbase + RDAYCNT)); + tm->tm_mon = BCD2BIN(readb(rtc->regbase + RMONCNT)); + +#if defined(CONFIG_CPU_SH4) + yr = readw(rtc->regbase + RYRCNT); + yr100 = BCD2BIN(yr >> 8); + yr &= 0xff; +#else + yr = readb(rtc->regbase + RYRCNT); + yr100 = BCD2BIN((yr == 0x99) ? 0x19 : 0x20); +#endif + + tm->tm_year = (yr100 * 100 + BCD2BIN(yr)) - 1900; + + sec2 = readb(rtc->regbase + R64CNT); + cf_bit = readb(rtc->regbase + RCR1) & RCR1_CF; + + spin_unlock_irq(&rtc->lock); + } while (cf_bit != 0 || ((sec128 ^ sec2) & RTC_BIT_INVERTED) != 0); + +#if RTC_BIT_INVERTED != 0 + if ((sec128 & RTC_BIT_INVERTED)) + tm->tm_sec--; +#endif + + dev_dbg(&dev, "%s: tm is secs=%d, mins=%d, hours=%d, " + "mday=%d, mon=%d, year=%d, wday=%d\n", + __FUNCTION__, + tm->tm_sec, tm->tm_min, tm->tm_hour, + tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday); + + if (rtc_valid_tm(tm) < 0) + dev_err(dev, "invalid date\n"); + + return 0; +} + +static int sh_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + struct platform_device *pdev = to_platform_device(dev); + struct sh_rtc *rtc = platform_get_drvdata(pdev); + unsigned int tmp; + int year; + + spin_lock_irq(&rtc->lock); + + /* Reset pre-scaler & stop RTC */ + tmp = readb(rtc->regbase + RCR2); + tmp |= RCR2_RESET; + writeb(tmp, rtc->regbase + RCR2); + + writeb(BIN2BCD(tm->tm_sec), rtc->regbase + RSECCNT); + writeb(BIN2BCD(tm->tm_min), rtc->regbase + RMINCNT); + writeb(BIN2BCD(tm->tm_hour), rtc->regbase + RHRCNT); + writeb(BIN2BCD(tm->tm_wday), rtc->regbase + RWKCNT); + writeb(BIN2BCD(tm->tm_mday), rtc->regbase + RDAYCNT); + writeb(BIN2BCD(tm->tm_mon), rtc->regbase + RMONCNT); + +#ifdef CONFIG_CPU_SH3 + year = tm->tm_year % 100; + writeb(BIN2BCD(year), rtc->regbase + RYRCNT); +#else + year = (BIN2BCD((tm->tm_year + 1900) / 100) << 8) | + BIN2BCD(tm->tm_year % 100); + writew(year, rtc->regbase + RYRCNT); +#endif + + /* Start RTC */ + tmp = readb(rtc->regbase + RCR2); + tmp &= ~RCR2_RESET; + tmp |= RCR2_RTCEN | RCR2_START; + writeb(tmp, rtc->regbase + RCR2); + + spin_unlock_irq(&rtc->lock); + + return 0; +} + +static struct rtc_class_ops sh_rtc_ops = { + .open = sh_rtc_open, + .release = sh_rtc_release, + .ioctl = sh_rtc_ioctl, + .read_time = sh_rtc_read_time, + .set_time = sh_rtc_set_time, + .proc = sh_rtc_proc, +}; + +static int __devinit sh_rtc_probe(struct platform_device *pdev) +{ + struct sh_rtc *rtc; + struct resource *res; + int ret = -ENOENT; + + rtc = kzalloc(sizeof(struct sh_rtc), GFP_KERNEL); + if (unlikely(!rtc)) + return -ENOMEM; + + spin_lock_init(&rtc->lock); + + rtc->periodic_irq = platform_get_irq(pdev, 0); + if (unlikely(rtc->periodic_irq < 0)) { + dev_err(&pdev->dev, "No IRQ for period\n"); + goto err_badres; + } + + rtc->carry_irq = platform_get_irq(pdev, 1); + if (unlikely(rtc->carry_irq < 0)) { + dev_err(&pdev->dev, "No IRQ for carry\n"); + goto err_badres; + } + + rtc->alarm_irq = platform_get_irq(pdev, 2); + if (unlikely(rtc->alarm_irq < 0)) { + dev_err(&pdev->dev, "No IRQ for alarm\n"); + goto err_badres; + } + + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (unlikely(res == NULL)) { + dev_err(&pdev->dev, "No IO resource\n"); + goto err_badres; + } + + rtc->regsize = res->end - res->start + 1; + + rtc->res = request_mem_region(res->start, rtc->regsize, pdev->name); + if (unlikely(!rtc->res)) { + ret = -EBUSY; + goto err_badres; + } + + rtc->regbase = (void __iomem *)rtc->res->start; + if (unlikely(!rtc->regbase)) { + ret = -EINVAL; + goto err_badmap; + } + + rtc->rtc_dev = rtc_device_register("sh", &pdev->dev, + &sh_rtc_ops, THIS_MODULE); + if (IS_ERR(rtc)) { + ret = PTR_ERR(rtc->rtc_dev); + goto err_badmap; + } + + platform_set_drvdata(pdev, rtc); + + return 0; + +err_badmap: + release_resource(rtc->res); +err_badres: + kfree(rtc); + + return ret; +} + +static int __devexit sh_rtc_remove(struct platform_device *pdev) +{ + struct sh_rtc *rtc = platform_get_drvdata(pdev); + + if (likely(rtc->rtc_dev)) + rtc_device_unregister(rtc->rtc_dev); + + sh_rtc_setpie(&pdev->dev, 0); + sh_rtc_setaie(&pdev->dev, 0); + + release_resource(rtc->res); + + platform_set_drvdata(pdev, NULL); + + kfree(rtc); + + return 0; +} +static struct platform_driver sh_rtc_platform_driver = { + .driver = { + .name = "sh-rtc", + .owner = THIS_MODULE, + }, + .probe = sh_rtc_probe, + .remove = __devexit_p(sh_rtc_remove), +}; + +static int __init sh_rtc_init(void) +{ + return platform_driver_register(&sh_rtc_platform_driver); +} + +static void __exit sh_rtc_exit(void) +{ + platform_driver_unregister(&sh_rtc_platform_driver); +} + +module_init(sh_rtc_init); +module_exit(sh_rtc_exit); + +MODULE_DESCRIPTION("SuperH on-chip RTC driver"); +MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>"); +MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/aha1740.c b/drivers/scsi/aha1740.c index 0e4a7eb..6b35ed8 100644 --- a/drivers/scsi/aha1740.c +++ b/drivers/scsi/aha1740.c
@@ -681,6 +681,7 @@ { "ADP0400" }, /* 1744 */ { "" } }; +MODULE_DEVICE_TABLE(eisa, aha1740_ids); static struct eisa_driver aha1740_driver = { .id_table = aha1740_ids,
diff --git a/drivers/scsi/aic7xxx/aic7770_osm.c b/drivers/scsi/aic7xxx/aic7770_osm.c index 867cbe2..1ac1197 100644 --- a/drivers/scsi/aic7xxx/aic7770_osm.c +++ b/drivers/scsi/aic7xxx/aic7770_osm.c
@@ -132,7 +132,8 @@ { "ADP7770", 5 }, /* AIC7770 generic */ { "" } }; - +MODULE_DEVICE_TABLE(eisa, aic7770_ids); + static struct eisa_driver aic7770_driver = { .id_table = aic7770_ids, .driver = {
diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c index 592b52a..683fc7a 100644 --- a/drivers/scsi/mesh.c +++ b/drivers/scsi/mesh.c
@@ -1756,16 +1756,23 @@ pmac_call_feature(PMAC_FTR_MESH_ENABLE, macio_get_of_node(ms->mdev), 0, 0); msleep(10); } -} +} #ifdef CONFIG_PM -static int mesh_suspend(struct macio_dev *mdev, pm_message_t state) +static int mesh_suspend(struct macio_dev *mdev, pm_message_t mesg) { struct mesh_state *ms = (struct mesh_state *)macio_get_drvdata(mdev); unsigned long flags; - if (state.event == mdev->ofdev.dev.power.power_state.event || state.event < 2) + switch (mesg.event) { + case PM_EVENT_SUSPEND: + case PM_EVENT_FREEZE: + break; + default: + return 0; + } + if (mesg.event == mdev->ofdev.dev.power.power_state.event) return 0; scsi_block_requests(ms->host); @@ -1780,7 +1787,7 @@ disable_irq(ms->meshintr); set_mesh_power(ms, 0); - mdev->ofdev.dev.power.power_state = state; + mdev->ofdev.dev.power.power_state = mesg; return 0; }
diff --git a/drivers/scsi/sim710.c b/drivers/scsi/sim710.c index b27e854..551bacc 100644 --- a/drivers/scsi/sim710.c +++ b/drivers/scsi/sim710.c
@@ -282,6 +282,7 @@ { "HWP0C80" }, { "" } }; +MODULE_DEVICE_TABLE(eisa, sim710_eisa_ids); static __init int sim710_eisa_probe(struct device *dev)
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index 5b48ac2..261eaa4 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig
@@ -642,12 +642,17 @@ select SERIAL_CORE_CONSOLE config SERIAL_SH_SCI - tristate "SH SCI(F) serial port support" + tristate "SuperH SCI(F) serial port support" depends on SUPERH || H8300 select SERIAL_CORE +config SERIAL_SH_SCI_NR_UARTS + int "Maximum number of SCI(F) serial ports" + depends on SERIAL_SH_SCI + default "2" + config SERIAL_SH_SCI_CONSOLE - bool "Support for console on SH SCI(F)" + bool "Support for console on SuperH SCI(F)" depends on SERIAL_SH_SCI=y select SERIAL_CORE_CONSOLE
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index 372e47f..5f7ba1ad 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c
@@ -1929,6 +1929,13 @@ mutex_lock(&state->mutex); +#ifdef CONFIG_DISABLE_CONSOLE_SUSPEND + if (uart_console(port)) { + mutex_unlock(&state->mutex); + return 0; + } +#endif + if (state->info && state->info->flags & UIF_INITIALIZED) { const struct uart_ops *ops = port->ops; @@ -1967,6 +1974,13 @@ mutex_lock(&state->mutex); +#ifdef CONFIG_DISABLE_CONSOLE_SUSPEND + if (uart_console(port)) { + mutex_unlock(&state->mutex); + return 0; + } +#endif + uart_change_pm(state, 0); /*
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c index cbede06..f336ba6 100644 --- a/drivers/serial/sh-sci.c +++ b/drivers/serial/sh-sci.c
@@ -3,7 +3,7 @@ * * SuperH on-chip serial module support. (SCI with no FIFO / with FIFO) * - * Copyright (C) 2002, 2003, 2004 Paul Mundt + * Copyright (C) 2002 - 2006 Paul Mundt * * based off of the old drivers/char/sh-sci.c by: * @@ -20,10 +20,9 @@ #undef DEBUG +#include <linux/config.h> #include <linux/module.h> #include <linux/errno.h> -#include <linux/signal.h> -#include <linux/sched.h> #include <linux/timer.h> #include <linux/interrupt.h> #include <linux/tty.h> @@ -32,34 +31,25 @@ #include <linux/major.h> #include <linux/string.h> #include <linux/sysrq.h> -#include <linux/fcntl.h> -#include <linux/ptrace.h> #include <linux/ioport.h> #include <linux/mm.h> -#include <linux/slab.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/console.h> -#include <linux/bitops.h> -#include <linux/generic_serial.h> +#include <linux/platform_device.h> #ifdef CONFIG_CPU_FREQ #include <linux/notifier.h> #include <linux/cpufreq.h> #endif -#include <asm/system.h> -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/uaccess.h> - #if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64) #include <asm/clock.h> +#include <asm/sh_bios.h> +#include <asm/kgdb.h> #endif -#ifdef CONFIG_SH_STANDARD_BIOS -#include <asm/sh_bios.h> -#endif +#include <asm/sci.h> #if defined(CONFIG_SERIAL_SH_SCI_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) #define SUPPORT_SYSRQ @@ -67,36 +57,51 @@ #include "sh-sci.h" -#ifdef CONFIG_SH_KGDB -#include <asm/kgdb.h> +struct sci_port { + struct uart_port port; -static int kgdb_get_char(struct sci_port *port); -static void kgdb_put_char(struct sci_port *port, char c); -static void kgdb_handle_error(struct sci_port *port); + /* Port type */ + unsigned int type; + + /* Port IRQs: ERI, RXI, TXI, BRI (optional) */ + unsigned int irqs[SCIx_NR_IRQS]; + + /* Port pin configuration */ + void (*init_pins)(struct uart_port *port, + unsigned int cflag); + + /* Port enable callback */ + void (*enable)(struct uart_port *port); + + /* Port disable callback */ + void (*disable)(struct uart_port *port); + + /* Break timer */ + struct timer_list break_timer; + int break_flag; +}; + +#ifdef CONFIG_SH_KGDB static struct sci_port *kgdb_sci_port; -#endif /* CONFIG_SH_KGDB */ +#endif #ifdef CONFIG_SERIAL_SH_SCI_CONSOLE -static struct sci_port *serial_console_port = 0; -#endif /* CONFIG_SERIAL_SH_SCI_CONSOLE */ +static struct sci_port *serial_console_port; +#endif /* Function prototypes */ static void sci_stop_tx(struct uart_port *port); -static void sci_start_tx(struct uart_port *port); -static void sci_start_rx(struct uart_port *port, unsigned int tty_start); -static void sci_stop_rx(struct uart_port *port); -static int sci_request_irq(struct sci_port *port); -static void sci_free_irq(struct sci_port *port); -static struct sci_port sci_ports[]; +#define SCI_NPORTS CONFIG_SERIAL_SH_SCI_NR_UARTS + +static struct sci_port sci_ports[SCI_NPORTS]; static struct uart_driver sci_uart_driver; -#define SCI_NPORTS sci_uart_driver.nr - -#if defined(CONFIG_SH_STANDARD_BIOS) || defined(CONFIG_SH_KGDB) - -static void handle_error(struct uart_port *port) -{ /* Clear error flags */ +#if defined(CONFIG_SERIAL_SH_SCI_CONSOLE) && \ + defined(CONFIG_SH_STANDARD_BIOS) || defined(CONFIG_SH_KGDB) +static inline void handle_error(struct uart_port *port) +{ + /* Clear error flags */ sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port)); } @@ -106,8 +111,8 @@ unsigned short status; int c; - local_irq_save(flags); - do { + spin_lock_irqsave(&port->lock, flags); + do { status = sci_in(port, SCxSR); if (status & SCxSR_ERRORS(port)) { handle_error(port); @@ -117,38 +122,19 @@ c = sci_in(port, SCxRDR); sci_in(port, SCxSR); /* Dummy read */ sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port)); - local_irq_restore(flags); + spin_unlock_irqrestore(&port->lock, flags); return c; } - -/* Taken from sh-stub.c of GDB 4.18 */ -static const char hexchars[] = "0123456789abcdef"; - -static __inline__ char highhex(int x) -{ - return hexchars[(x >> 4) & 0xf]; -} - -static __inline__ char lowhex(int x) -{ - return hexchars[x & 0xf]; -} - #endif /* CONFIG_SH_STANDARD_BIOS || CONFIG_SH_KGDB */ -/* - * Send the packet in buffer. The host gets one chance to read it. - * This routine does not wait for a positive acknowledge. - */ - -#ifdef CONFIG_SERIAL_SH_SCI_CONSOLE +#if defined(CONFIG_SERIAL_SH_SCI_CONSOLE) || defined(CONFIG_SH_KGDB) static void put_char(struct uart_port *port, char c) { unsigned long flags; unsigned short status; - local_irq_save(flags); + spin_lock_irqsave(&port->lock, flags); do { status = sci_in(port, SCxSR); @@ -158,9 +144,11 @@ sci_in(port, SCxSR); /* Dummy read */ sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port)); - local_irq_restore(flags); + spin_unlock_irqrestore(&port->lock, flags); } +#endif +#ifdef CONFIG_SERIAL_SH_SCI_CONSOLE static void put_string(struct sci_port *sci_port, const char *buffer, int count) { struct uart_port *port = &sci_port->port; @@ -213,96 +201,28 @@ } #endif /* CONFIG_SERIAL_SH_SCI_CONSOLE */ - #ifdef CONFIG_SH_KGDB - -/* Is the SCI ready, ie is there a char waiting? */ -static int kgdb_is_char_ready(struct sci_port *port) -{ - unsigned short status = sci_in(port, SCxSR); - - if (status & (SCxSR_ERRORS(port) | SCxSR_BRK(port))) - kgdb_handle_error(port); - - return (status & SCxSR_RDxF(port)); -} - -/* Write a char */ -static void kgdb_put_char(struct sci_port *port, char c) -{ - unsigned short status; - - do - status = sci_in(port, SCxSR); - while (!(status & SCxSR_TDxE(port))); - - sci_out(port, SCxTDR, c); - sci_in(port, SCxSR); /* Dummy read */ - sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port)); -} - -/* Get a char if there is one, else ret -1 */ -static int kgdb_get_char(struct sci_port *port) +static int kgdb_sci_getchar(void) { int c; - if (kgdb_is_char_ready(port) == 0) - c = -1; - else { - c = sci_in(port, SCxRDR); - sci_in(port, SCxSR); /* Dummy read */ - sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port)); - } - - return c; -} - -/* Called from kgdbstub.c to get a character, i.e. is blocking */ -static int kgdb_sci_getchar(void) -{ - volatile int c; - /* Keep trying to read a character, this could be neater */ - while ((c = kgdb_get_char(kgdb_sci_port)) < 0); + while ((c = get_char(kgdb_sci_port)) < 0) + cpu_relax(); return c; } -/* Called from kgdbstub.c to put a character, just a wrapper */ -static void kgdb_sci_putchar(int c) +static inline void kgdb_sci_putchar(int c) { - - kgdb_put_char(kgdb_sci_port, c); + put_char(kgdb_sci_port, c); } - -/* Clear any errors on the SCI */ -static void kgdb_handle_error(struct sci_port *port) -{ - sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port)); /* Clear error flags */ -} - -/* Breakpoint if there's a break sent on the serial port */ -static void kgdb_break_interrupt(int irq, void *ptr, struct pt_regs *regs) -{ - struct sci_port *port = ptr; - unsigned short status = sci_in(port, SCxSR); - - if (status & SCxSR_BRK(port)) { - - /* Break into the debugger if a break is detected */ - BREAKPOINT(); - - /* Clear */ - sci_out(port, SCxSR, SCxSR_BREAK_CLEAR(port)); - } -} - #endif /* CONFIG_SH_KGDB */ #if defined(__H8300S__) enum { sci_disable, sci_enable }; -static void h8300_sci_enable(struct uart_port* port, unsigned int ctrl) +static void h8300_sci_config(struct uart_port* port, unsigned int ctrl) { volatile unsigned char *mstpcrl=(volatile unsigned char *)MSTPCRL; int ch = (port->mapbase - SMR0) >> 3; @@ -314,32 +234,66 @@ *mstpcrl &= ~mask; } } + +static inline void h8300_sci_enable(struct uart_port *port) +{ + h8300_sci_config(port, sci_enable); +} + +static inline void h8300_sci_disable(struct uart_port *port) +{ + h8300_sci_config(port, sci_disable); +} #endif -#if defined(SCI_ONLY) || defined(SCI_AND_SCIF) -#if defined(__H8300H__) || defined(__H8300S__) +#if defined(SCI_ONLY) || defined(SCI_AND_SCIF) && \ + defined(__H8300H__) || defined(__H8300S__) static void sci_init_pins_sci(struct uart_port* port, unsigned int cflag) { int ch = (port->mapbase - SMR0) >> 3; /* set DDR regs */ - H8300_GPIO_DDR(h8300_sci_pins[ch].port,h8300_sci_pins[ch].rx,H8300_GPIO_INPUT); - H8300_GPIO_DDR(h8300_sci_pins[ch].port,h8300_sci_pins[ch].tx,H8300_GPIO_OUTPUT); + H8300_GPIO_DDR(h8300_sci_pins[ch].port, + h8300_sci_pins[ch].rx, + H8300_GPIO_INPUT); + H8300_GPIO_DDR(h8300_sci_pins[ch].port, + h8300_sci_pins[ch].tx, + H8300_GPIO_OUTPUT); + /* tx mark output*/ H8300_SCI_DR(ch) |= h8300_sci_pins[ch].tx; } +#else +#define sci_init_pins_sci NULL #endif + +#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) +static void sci_init_pins_irda(struct uart_port *port, unsigned int cflag) +{ + unsigned int fcr_val = 0; + + if (cflag & CRTSCTS) + fcr_val |= SCFCR_MCE; + + sci_out(port, SCFCR, fcr_val); +} +#else +#define sci_init_pins_irda NULL +#endif + +#ifdef SCI_ONLY +#define sci_init_pins_scif NULL #endif #if defined(SCIF_ONLY) || defined(SCI_AND_SCIF) -#if defined(CONFIG_CPU_SUBTYPE_SH7300) +#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7710) /* SH7300 doesn't use RTS/CTS */ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) { sci_out(port, SCFCR, 0); } #elif defined(CONFIG_CPU_SH3) -/* For SH7705, SH7707, SH7709, SH7709A, SH7729 */ +/* For SH7705, SH7706, SH7707, SH7709, SH7709A, SH7729 */ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) { unsigned int fcr_val = 0; @@ -366,20 +320,7 @@ sci_out(port, SCFCR, fcr_val); } - -#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) -static void sci_init_pins_irda(struct uart_port *port, unsigned int cflag) -{ - unsigned int fcr_val = 0; - - if (cflag & CRTSCTS) - fcr_val |= SCFCR_MCE; - - sci_out(port, SCFCR, fcr_val); -} -#endif #else - /* For SH7750 */ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag) { @@ -388,7 +329,9 @@ if (cflag & CRTSCTS) { fcr_val |= SCFCR_MCE; } else { -#ifdef CONFIG_CPU_SUBTYPE_SH7780 +#ifdef CONFIG_CPU_SUBTYPE_SH7343 + /* Nothing */ +#elif defined(CONFIG_CPU_SUBTYPE_SH7780) ctrl_outw(0x0080, SCSPTR0); /* Set RTS = 1 */ #else ctrl_outw(0x0080, SCSPTR2); /* Set RTS = 1 */ @@ -396,10 +339,41 @@ } sci_out(port, SCFCR, fcr_val); } +#endif +#if defined(CONFIG_CPU_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780) +static inline int scif_txroom(struct uart_port *port) +{ + return SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0x7f); +} + +static inline int scif_rxroom(struct uart_port *port) +{ + return sci_in(port, SCRFDR) & 0x7f; +} +#else +static inline int scif_txroom(struct uart_port *port) +{ + return SCIF_TXROOM_MAX - (sci_in(port, SCFDR) >> 8); +} + +static inline int scif_rxroom(struct uart_port *port) +{ + return sci_in(port, SCFDR) & SCIF_RFDC_MASK; +} #endif #endif /* SCIF_ONLY || SCI_AND_SCIF */ +static inline int sci_txroom(struct uart_port *port) +{ + return ((sci_in(port, SCxSR) & SCI_TDRE) != 0); +} + +static inline int sci_rxroom(struct uart_port *port) +{ + return ((sci_in(port, SCxSR) & SCxSR_RDxF(port)) != 0); +} + /* ********************************************************************** * * the interrupt related routines * * ********************************************************************** */ @@ -408,14 +382,12 @@ { struct circ_buf *xmit = &port->info->xmit; unsigned int stopped = uart_tx_stopped(port); - unsigned long flags; unsigned short status; unsigned short ctrl; - int count, txroom; + int count; status = sci_in(port, SCxSR); if (!(status & SCxSR_TDxE(port))) { - local_irq_save(flags); ctrl = sci_in(port, SCSCR); if (uart_circ_empty(xmit)) { ctrl &= ~SCI_CTRL_FLAGS_TIE; @@ -423,25 +395,15 @@ ctrl |= SCI_CTRL_FLAGS_TIE; } sci_out(port, SCSCR, ctrl); - local_irq_restore(flags); return; } -#if !defined(SCI_ONLY) - if (port->type == PORT_SCIF) { -#if defined(CONFIG_CPU_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780) - txroom = SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0x7f); -#else - txroom = SCIF_TXROOM_MAX - (sci_in(port, SCFDR)>>8); +#ifndef SCI_ONLY + if (port->type == PORT_SCIF) + count = scif_txroom(port); + else #endif - } else { - txroom = (sci_in(port, SCxSR) & SCI_TDRE)?1:0; - } -#else - txroom = (sci_in(port, SCxSR) & SCI_TDRE)?1:0; -#endif - - count = txroom; + count = sci_txroom(port); do { unsigned char c; @@ -468,7 +430,6 @@ if (uart_circ_empty(xmit)) { sci_stop_tx(port); } else { - local_irq_save(flags); ctrl = sci_in(port, SCSCR); #if !defined(SCI_ONLY) @@ -480,7 +441,6 @@ ctrl |= SCI_CTRL_FLAGS_TIE; sci_out(port, SCSCR, ctrl); - local_irq_restore(flags); } } @@ -490,6 +450,7 @@ static inline void sci_receive_chars(struct uart_port *port, struct pt_regs *regs) { + struct sci_port *sci_port = (struct sci_port *)port; struct tty_struct *tty = port->info->tty; int i, count, copied = 0; unsigned short status; @@ -501,18 +462,11 @@ while (1) { #if !defined(SCI_ONLY) - if (port->type == PORT_SCIF) { -#if defined(CONFIG_CPU_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780) - count = sci_in(port, SCRFDR) & 0x7f; -#else - count = sci_in(port, SCFDR)&SCIF_RFDC_MASK ; + if (port->type == PORT_SCIF) + count = scif_rxroom(port); + else #endif - } else { - count = (sci_in(port, SCxSR)&SCxSR_RDxF(port))?1:0; - } -#else - count = (sci_in(port, SCxSR)&SCxSR_RDxF(port))?1:0; -#endif + count = sci_rxroom(port); /* Don't copy more bytes than there is room for in the buffer */ count = tty_buffer_request_room(tty, count); @@ -523,11 +477,10 @@ if (port->type == PORT_SCI) { char c = sci_in(port, SCxRDR); - if(((struct sci_port *)port)->break_flag - || uart_handle_sysrq_char(port, c, regs)) { + if (uart_handle_sysrq_char(port, c, regs) || sci_port->break_flag) count = 0; - } else { - tty_insert_flip_char(tty, c, TTY_NORMAL); + else { + tty_insert_flip_char(tty, c, TTY_NORMAL); } } else { for (i=0; i<count; i++) { @@ -535,15 +488,17 @@ status = sci_in(port, SCxSR); #if defined(CONFIG_CPU_SH3) /* Skip "chars" during break */ - if (((struct sci_port *)port)->break_flag) { + if (sci_port->break_flag) { if ((c == 0) && (status & SCxSR_FER(port))) { count--; i--; continue; } + /* Nonzero => end-of-break */ pr_debug("scif: debounce<%02x>\n", c); - ((struct sci_port *)port)->break_flag = 0; + sci_port->break_flag = 0; + if (STEPFN(c)) { count--; i--; continue; @@ -600,15 +555,17 @@ /* Ensure that two consecutive samples find the break over. */ static void sci_break_timer(unsigned long data) { - struct sci_port * port = (struct sci_port *)data; - if(sci_rxd_in(&port->port) == 0) { + struct sci_port *port = (struct sci_port *)data; + + if (sci_rxd_in(&port->port) == 0) { port->break_flag = 1; - sci_schedule_break_timer(port); - } else if(port->break_flag == 1){ + sci_schedule_break_timer(port); + } else if (port->break_flag == 1) { /* break is over. */ port->break_flag = 2; - sci_schedule_break_timer(port); - } else port->break_flag = 0; + sci_schedule_break_timer(port); + } else + port->break_flag = 0; } static inline int sci_handle_errors(struct uart_port *port) @@ -617,40 +574,41 @@ unsigned short status = sci_in(port, SCxSR); struct tty_struct *tty = port->info->tty; - if (status&SCxSR_ORER(port)) { + if (status & SCxSR_ORER(port)) { /* overrun error */ - if(tty_insert_flip_char(tty, 0, TTY_OVERRUN)) + if (tty_insert_flip_char(tty, 0, TTY_OVERRUN)) copied++; pr_debug("sci: overrun error\n"); } - if (status&SCxSR_FER(port)) { + if (status & SCxSR_FER(port)) { if (sci_rxd_in(port) == 0) { /* Notify of BREAK */ - struct sci_port * sci_port = (struct sci_port *)port; - if(!sci_port->break_flag) { - sci_port->break_flag = 1; - sci_schedule_break_timer((struct sci_port *)port); + struct sci_port *sci_port = (struct sci_port *)port; + + if (!sci_port->break_flag) { + sci_port->break_flag = 1; + sci_schedule_break_timer(sci_port); + /* Do sysrq handling. */ - if(uart_handle_break(port)) + if (uart_handle_break(port)) return 0; pr_debug("sci: BREAK detected\n"); - if(tty_insert_flip_char(tty, 0, TTY_BREAK)) + if (tty_insert_flip_char(tty, 0, TTY_BREAK)) copied++; } - } - else { + } else { /* frame error */ - if(tty_insert_flip_char(tty, 0, TTY_FRAME)) + if (tty_insert_flip_char(tty, 0, TTY_FRAME)) copied++; pr_debug("sci: frame error\n"); } } - if (status&SCxSR_PER(port)) { - if(tty_insert_flip_char(tty, 0, TTY_PARITY)) - copied++; + if (status & SCxSR_PER(port)) { /* parity error */ + if (tty_insert_flip_char(tty, 0, TTY_PARITY)) + copied++; pr_debug("sci: parity error\n"); } @@ -673,7 +631,7 @@ s->break_flag = 1; #endif /* Notify of BREAK */ - if(tty_insert_flip_char(tty, 0, TTY_BREAK)) + if (tty_insert_flip_char(tty, 0, TTY_BREAK)) copied++; pr_debug("sci: BREAK detected\n"); } @@ -682,7 +640,7 @@ /* XXX: Handle SCIF overrun error */ if (port->type == PORT_SCIF && (sci_in(port, SCLSR) & SCIF_ORER) != 0) { sci_out(port, SCLSR, 0); - if(tty_insert_flip_char(tty, 0, TTY_OVERRUN)) { + if (tty_insert_flip_char(tty, 0, TTY_OVERRUN)) { copied++; pr_debug("sci: overrun error\n"); } @@ -691,13 +649,12 @@ if (copied) tty_flip_buffer_push(tty); + return copied; } -static irqreturn_t sci_rx_interrupt(int irq, void *ptr, struct pt_regs *regs) +static irqreturn_t sci_rx_interrupt(int irq, void *port, struct pt_regs *regs) { - struct uart_port *port = ptr; - /* I think sci_receive_chars has to be called irrespective * of whether the I_IXOFF is set, otherwise, how is the interrupt * to be disabled? @@ -711,7 +668,9 @@ { struct uart_port *port = ptr; + spin_lock_irq(&port->lock); sci_transmit_chars(port); + spin_unlock_irq(&port->lock); return IRQ_HANDLED; } @@ -755,6 +714,12 @@ /* Handle BREAKs */ sci_handle_breaks(port); + +#ifdef CONFIG_SH_KGDB + /* Break into the debugger if a break is detected */ + BREAKPOINT(); +#endif + sci_out(port, SCxSR, SCxSR_BREAK_CLEAR(port)); return IRQ_HANDLED; @@ -769,16 +734,16 @@ scr_status = sci_in(port,SCSCR); /* Tx Interrupt */ - if ((ssr_status&0x0020) && (scr_status&0x0080)) + if ((ssr_status & 0x0020) && (scr_status & 0x0080)) sci_tx_interrupt(irq, ptr, regs); /* Rx Interrupt */ - if ((ssr_status&0x0002) && (scr_status&0x0040)) + if ((ssr_status & 0x0002) && (scr_status & 0x0040)) sci_rx_interrupt(irq, ptr, regs); /* Error Interrupt */ - if ((ssr_status&0x0080) && (scr_status&0x0400)) + if ((ssr_status & 0x0080) && (scr_status & 0x0400)) sci_er_interrupt(irq, ptr, regs); /* Break Interrupt */ - if ((ssr_status&0x0010) && (scr_status&0x0200)) + if ((ssr_status & 0x0010) && (scr_status & 0x0200)) sci_br_interrupt(irq, ptr, regs); return IRQ_HANDLED; @@ -789,7 +754,8 @@ * Here we define a transistion notifier so that we can update all of our * ports' baud rate when the peripheral clock changes. */ -static int sci_notifier(struct notifier_block *self, unsigned long phase, void *p) +static int sci_notifier(struct notifier_block *self, + unsigned long phase, void *p) { struct cpufreq_freqs *freqs = p; int i; @@ -816,8 +782,9 @@ clk_put(clk); } - printk("%s: got a postchange notification for cpu %d (old %d, new %d)\n", - __FUNCTION__, freqs->cpu, freqs->old, freqs->new); + printk(KERN_INFO "%s: got a postchange notification " + "for cpu %d (old %d, new %d)\n", + __FUNCTION__, freqs->cpu, freqs->old, freqs->new); } return NOTIFY_OK; @@ -841,8 +808,9 @@ printk(KERN_ERR "sci: Cannot allocate irq.(IRQ=0)\n"); return -ENODEV; } - if (request_irq(port->irqs[0], sci_mpxed_interrupt, IRQF_DISABLED, - "sci", port)) { + + if (request_irq(port->irqs[0], sci_mpxed_interrupt, + SA_INTERRUPT, "sci", port)) { printk(KERN_ERR "sci: Cannot allocate irq.\n"); return -ENODEV; } @@ -850,8 +818,8 @@ for (i = 0; i < ARRAY_SIZE(handlers); i++) { if (!port->irqs[i]) continue; - if (request_irq(port->irqs[i], handlers[i], IRQF_DISABLED, - desc[i], port)) { + if (request_irq(port->irqs[i], handlers[i], + SA_INTERRUPT, desc[i], port)) { printk(KERN_ERR "sci: Cannot allocate irq.\n"); return -ENODEV; } @@ -903,50 +871,42 @@ static void sci_start_tx(struct uart_port *port) { - struct sci_port *s = &sci_ports[port->line]; + unsigned short ctrl; - disable_irq(s->irqs[SCIx_TXI_IRQ]); - sci_transmit_chars(port); - enable_irq(s->irqs[SCIx_TXI_IRQ]); + /* Set TIE (Transmit Interrupt Enable) bit in SCSCR */ + ctrl = sci_in(port, SCSCR); + ctrl |= SCI_CTRL_FLAGS_TIE; + sci_out(port, SCSCR, ctrl); } static void sci_stop_tx(struct uart_port *port) { - unsigned long flags; unsigned short ctrl; /* Clear TIE (Transmit Interrupt Enable) bit in SCSCR */ - local_irq_save(flags); ctrl = sci_in(port, SCSCR); ctrl &= ~SCI_CTRL_FLAGS_TIE; sci_out(port, SCSCR, ctrl); - local_irq_restore(flags); } static void sci_start_rx(struct uart_port *port, unsigned int tty_start) { - unsigned long flags; unsigned short ctrl; /* Set RIE (Receive Interrupt Enable) bit in SCSCR */ - local_irq_save(flags); ctrl = sci_in(port, SCSCR); ctrl |= SCI_CTRL_FLAGS_RIE | SCI_CTRL_FLAGS_REIE; sci_out(port, SCSCR, ctrl); - local_irq_restore(flags); } static void sci_stop_rx(struct uart_port *port) { - unsigned long flags; unsigned short ctrl; /* Clear RIE (Receive Interrupt Enable) bit in SCSCR */ - local_irq_save(flags); ctrl = sci_in(port, SCSCR); ctrl &= ~(SCI_CTRL_FLAGS_RIE | SCI_CTRL_FLAGS_REIE); sci_out(port, SCSCR, ctrl); - local_irq_restore(flags); } static void sci_enable_ms(struct uart_port *port) @@ -963,9 +923,8 @@ { struct sci_port *s = &sci_ports[port->line]; -#if defined(__H8300S__) - h8300_sci_enable(port, sci_enable); -#endif + if (s->enable) + s->enable(port); sci_request_irq(s); sci_start_tx(port); @@ -982,9 +941,8 @@ sci_stop_tx(port); sci_free_irq(s); -#if defined(__H8300S__) - h8300_sci_enable(port, sci_disable); -#endif + if (s->disable) + s->disable(port); } static void sci_set_termios(struct uart_port *port, struct termios *termios, @@ -997,34 +955,6 @@ baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16); - spin_lock_irqsave(&port->lock, flags); - - do { - status = sci_in(port, SCxSR); - } while (!(status & SCxSR_TEND(port))); - - sci_out(port, SCSCR, 0x00); /* TE=0, RE=0, CKE1=0 */ - -#if !defined(SCI_ONLY) - if (port->type == PORT_SCIF) { - sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST); - } -#endif - - smr_val = sci_in(port, SCSMR) & 3; - if ((termios->c_cflag & CSIZE) == CS7) - smr_val |= 0x40; - if (termios->c_cflag & PARENB) - smr_val |= 0x20; - if (termios->c_cflag & PARODD) - smr_val |= 0x30; - if (termios->c_cflag & CSTOPB) - smr_val |= 0x08; - - uart_update_timeout(port, termios->c_cflag, baud); - - sci_out(port, SCSMR, smr_val); - switch (baud) { case 0: t = -1; @@ -1042,6 +972,33 @@ break; } + spin_lock_irqsave(&port->lock, flags); + + do { + status = sci_in(port, SCxSR); + } while (!(status & SCxSR_TEND(port))); + + sci_out(port, SCSCR, 0x00); /* TE=0, RE=0, CKE1=0 */ + +#if !defined(SCI_ONLY) + if (port->type == PORT_SCIF) + sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST); +#endif + + smr_val = sci_in(port, SCSMR) & 3; + if ((termios->c_cflag & CSIZE) == CS7) + smr_val |= 0x40; + if (termios->c_cflag & PARENB) + smr_val |= 0x20; + if (termios->c_cflag & PARODD) + smr_val |= 0x30; + if (termios->c_cflag & CSTOPB) + smr_val |= 0x08; + + uart_update_timeout(port, termios->c_cflag, baud); + + sci_out(port, SCSMR, smr_val); + if (t > 0) { if(t >= 256) { sci_out(port, SCSMR, (sci_in(port, SCSMR) & ~3) | 1); @@ -1092,11 +1049,23 @@ port->type = s->type; + switch (port->type) { + case PORT_SCI: + s->init_pins = sci_init_pins_sci; + break; + case PORT_SCIF: + s->init_pins = sci_init_pins_scif; + break; + case PORT_IRDA: + s->init_pins = sci_init_pins_irda; + break; + } + #if defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103) if (port->mapbase == 0) port->mapbase = onchip_remap(SCIF_ADDR_SH5, 1024, "SCIF"); - port->membase = (void *)port->mapbase; + port->membase = (void __iomem *)port->mapbase; #endif } @@ -1132,412 +1101,61 @@ .verify_port = sci_verify_port, }; -static struct sci_port sci_ports[] = { -#if defined(CONFIG_CPU_SUBTYPE_SH7708) - { - .port = { - .membase = (void *)0xfffffe80, - .mapbase = 0xfffffe80, - .iotype = UPIO_MEM, - .irq = 25, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCI, - .irqs = SCI_IRQS, - }, -#elif defined(CONFIG_CPU_SUBTYPE_SH7705) - { - .port = { - .membase = (void *)SCIF0, - .mapbase = SCIF0, - .iotype = UPIO_MEM, - .irq = 55, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCIF, - .irqs = SH3_IRDA_IRQS, - .init_pins = sci_init_pins_scif, - }, - { - .port = { - .membase = (void *)SCIF2, - .mapbase = SCIF2, - .iotype = UPIO_MEM, - .irq = 59, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 1, - }, - .type = PORT_SCIF, - .irqs = SH3_SCIF_IRQS, - .init_pins = sci_init_pins_scif, - } -#elif defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) - { - .port = { - .membase = (void *)0xfffffe80, - .mapbase = 0xfffffe80, - .iotype = UPIO_MEM, - .irq = 25, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCI, - .irqs = SCI_IRQS, - }, - { - .port = { - .membase = (void *)0xa4000150, - .mapbase = 0xa4000150, - .iotype = UPIO_MEM, - .irq = 59, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 1, - }, - .type = PORT_SCIF, - .irqs = SH3_SCIF_IRQS, - .init_pins = sci_init_pins_scif, - }, - { - .port = { - .membase = (void *)0xa4000140, - .mapbase = 0xa4000140, - .iotype = UPIO_MEM, - .irq = 55, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 2, - }, - .type = PORT_IRDA, - .irqs = SH3_IRDA_IRQS, - .init_pins = sci_init_pins_irda, - } -#elif defined(CONFIG_CPU_SUBTYPE_SH7300) - { - .port = { - .membase = (void *)0xA4430000, - .mapbase = 0xA4430000, - .iotype = UPIO_MEM, - .irq = 25, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCIF, - .irqs = SH7300_SCIF0_IRQS, - .init_pins = sci_init_pins_scif, - }, -#elif defined(CONFIG_CPU_SUBTYPE_SH73180) - { - .port = { - .membase = (void *)0xffe00000, - .mapbase = 0xffe00000, - .iotype = UPIO_MEM, - .irq = 25, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCIF, - .irqs = SH73180_SCIF_IRQS, - .init_pins = sci_init_pins_scif, - }, -#elif defined(CONFIG_CPU_SUBTYPE_SH4_202) - { - .port = { - .membase = (void *)0xffe80000, - .mapbase = 0xffe80000, - .iotype = UPIO_MEM, - .irq = 43, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCIF, - .irqs = SH4_SCIF_IRQS, - .init_pins = sci_init_pins_scif, - }, -#elif defined(CONFIG_CPU_SUBTYPE_SH7750) || defined(CONFIG_CPU_SUBTYPE_SH7751) - { - .port = { - .membase = (void *)0xffe00000, - .mapbase = 0xffe00000, - .iotype = UPIO_MEM, - .irq = 25, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCI, - .irqs = SCI_IRQS, - }, - { - .port = { - .membase = (void *)0xffe80000, - .mapbase = 0xffe80000, - .iotype = UPIO_MEM, - .irq = 43, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 1, - }, - .type = PORT_SCIF, - .irqs = SH4_SCIF_IRQS, - .init_pins = sci_init_pins_scif, - }, -#elif defined(CONFIG_CPU_SUBTYPE_SH7760) - { - .port = { - .membase = (void *)0xfe600000, - .mapbase = 0xfe600000, - .iotype = UPIO_MEM, - .irq = 55, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCIF, - .irqs = SH7760_SCIF0_IRQS, - .init_pins = sci_init_pins_scif, - }, - { - .port = { - .membase = (void *)0xfe610000, - .mapbase = 0xfe610000, - .iotype = UPIO_MEM, - .irq = 75, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 1, - }, - .type = PORT_SCIF, - .irqs = SH7760_SCIF1_IRQS, - .init_pins = sci_init_pins_scif, - }, - { - .port = { - .membase = (void *)0xfe620000, - .mapbase = 0xfe620000, - .iotype = UPIO_MEM, - .irq = 79, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 2, - }, - .type = PORT_SCIF, - .irqs = SH7760_SCIF2_IRQS, - .init_pins = sci_init_pins_scif, - }, -#elif defined(CONFIG_CPU_SUBTYPE_ST40STB1) - { - .port = { - .membase = (void *)0xffe00000, - .mapbase = 0xffe00000, - .iotype = UPIO_MEM, - .irq = 26, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCIF, - .irqs = STB1_SCIF1_IRQS, - .init_pins = sci_init_pins_scif, - }, - { - .port = { - .membase = (void *)0xffe80000, - .mapbase = 0xffe80000, - .iotype = UPIO_MEM, - .irq = 43, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 1, - }, - .type = PORT_SCIF, - .irqs = SH4_SCIF_IRQS, - .init_pins = sci_init_pins_scif, - }, -#elif defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103) - { - .port = { - .iotype = UPIO_MEM, - .irq = 42, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCIF, - .irqs = SH5_SCIF_IRQS, - .init_pins = sci_init_pins_scif, - }, -#elif defined(CONFIG_H83007) || defined(CONFIG_H83068) - { - .port = { - .membase = (void *)0x00ffffb0, - .mapbase = 0x00ffffb0, - .iotype = UPIO_MEM, - .irq = 54, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCI, - .irqs = H8300H_SCI_IRQS0, - .init_pins = sci_init_pins_sci, - }, - { - .port = { - .membase = (void *)0x00ffffb8, - .mapbase = 0x00ffffb8, - .iotype = UPIO_MEM, - .irq = 58, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 1, - }, - .type = PORT_SCI, - .irqs = H8300H_SCI_IRQS1, - .init_pins = sci_init_pins_sci, - }, - { - .port = { - .membase = (void *)0x00ffffc0, - .mapbase = 0x00ffffc0, - .iotype = UPIO_MEM, - .irq = 62, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 2, - }, - .type = PORT_SCI, - .irqs = H8300H_SCI_IRQS2, - .init_pins = sci_init_pins_sci, - }, -#elif defined(CONFIG_H8S2678) - { - .port = { - .membase = (void *)0x00ffff78, - .mapbase = 0x00ffff78, - .iotype = UPIO_MEM, - .irq = 90, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCI, - .irqs = H8S_SCI_IRQS0, - .init_pins = sci_init_pins_sci, - }, - { - .port = { - .membase = (void *)0x00ffff80, - .mapbase = 0x00ffff80, - .iotype = UPIO_MEM, - .irq = 94, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 1, - }, - .type = PORT_SCI, - .irqs = H8S_SCI_IRQS1, - .init_pins = sci_init_pins_sci, - }, - { - .port = { - .membase = (void *)0x00ffff88, - .mapbase = 0x00ffff88, - .iotype = UPIO_MEM, - .irq = 98, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 2, - }, - .type = PORT_SCI, - .irqs = H8S_SCI_IRQS2, - .init_pins = sci_init_pins_sci, - }, -#elif defined(CONFIG_CPU_SUBTYPE_SH7770) - { - .port = { - .membase = (void *)0xff923000, - .mapbase = 0xff923000, - .iotype = UPIO_MEM, - .irq = 61, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCIF, - .irqs = SH7770_SCIF0_IRQS, - .init_pins = sci_init_pins_scif, - }, - { - .port = { - .membase = (void *)0xff924000, - .mapbase = 0xff924000, - .iotype = UPIO_MEM, - .irq = 62, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 1, - }, - .type = PORT_SCIF, - .irqs = SH7770_SCIF1_IRQS, - .init_pins = sci_init_pins_scif, - }, - { - .port = { - .membase = (void *)0xff925000, - .mapbase = 0xff925000, - .iotype = UPIO_MEM, - .irq = 63, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 2, - }, - .type = PORT_SCIF, - .irqs = SH7770_SCIF2_IRQS, - .init_pins = sci_init_pins_scif, - }, -#elif defined(CONFIG_CPU_SUBTYPE_SH7780) - { - .port = { - .membase = (void *)0xffe00000, - .mapbase = 0xffe00000, - .iotype = UPIO_MEM, - .irq = 43, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 0, - }, - .type = PORT_SCIF, - .irqs = SH7780_SCIF0_IRQS, - .init_pins = sci_init_pins_scif, - }, - { - .port = { - .membase = (void *)0xffe10000, - .mapbase = 0xffe10000, - .iotype = UPIO_MEM, - .irq = 79, - .ops = &sci_uart_ops, - .flags = UPF_BOOT_AUTOCONF, - .line = 1, - }, - .type = PORT_SCIF, - .irqs = SH7780_SCIF1_IRQS, - .init_pins = sci_init_pins_scif, - }, -#else -#error "CPU subtype not defined" +static void __init sci_init_ports(void) +{ + static int first = 1; + int i; + + if (!first) + return; + + first = 0; + + for (i = 0; i < SCI_NPORTS; i++) { + sci_ports[i].port.ops = &sci_uart_ops; + sci_ports[i].port.iotype = UPIO_MEM; + sci_ports[i].port.line = i; + sci_ports[i].port.fifosize = 1; + +#if defined(__H8300H__) || defined(__H8300S__) +#ifdef __H8300S__ + sci_ports[i].enable = h8300_sci_enable; + sci_ports[i].disable = h8300_sci_disable; #endif -}; + sci_ports[i].port.uartclk = CONFIG_CPU_CLOCK; +#elif defined(CONFIG_SUPERH64) + sci_ports[i].port.uartclk = current_cpu_data.module_clock * 16; +#else + /* + * XXX: We should use a proper SCI/SCIF clock + */ + { + struct clk *clk = clk_get("module_clk"); + sci_ports[i].port.uartclk = clk_get_rate(clk) * 16; + clk_put(clk); + } +#endif + + sci_ports[i].break_timer.data = (unsigned long)&sci_ports[i]; + sci_ports[i].break_timer.function = sci_break_timer; + + init_timer(&sci_ports[i].break_timer); + } +} + +int __init early_sci_setup(struct uart_port *port) +{ + if (unlikely(port->line > SCI_NPORTS)) + return -ENODEV; + + sci_init_ports(); + + sci_ports[port->line].port.membase = port->membase; + sci_ports[port->line].port.mapbase = port->mapbase; + sci_ports[port->line].port.type = port->type; + + return 0; +} #ifdef CONFIG_SERIAL_SH_SCI_CONSOLE /* @@ -1559,34 +1177,38 @@ int flow = 'n'; int ret; + /* + * Check whether an invalid uart number has been specified, and + * if so, search for the first available port that does have + * console support. + */ + if (co->index >= SCI_NPORTS) + co->index = 0; + serial_console_port = &sci_ports[co->index]; port = &serial_console_port->port; - port->type = serial_console_port->type; - -#ifdef CONFIG_SUPERH64 - /* This is especially needed on sh64 to remap the SCIF */ - sci_config_port(port, 0); -#endif /* - * We need to set the initial uartclk here, since otherwise it will - * only ever be setup at sci_init() time. + * Also need to check port->type, we don't actually have any + * UPIO_PORT ports, but uart_report_port() handily misreports + * it anyways if we don't have a port available by the time this is + * called. */ -#if defined(__H8300H__) || defined(__H8300S__) - port->uartclk = CONFIG_CPU_CLOCK; + if (!port->type) + return -ENODEV; + if (!port->membase || !port->mapbase) + return -ENODEV; -#if defined(__H8300S__) - h8300_sci_enable(port, sci_enable); -#endif -#elif defined(CONFIG_SUPERH64) - port->uartclk = current_cpu_data.module_clock * 16; -#else - { - struct clk *clk = clk_get("module_clk"); - port->uartclk = clk_get_rate(clk) * 16; - clk_put(clk); - } -#endif + spin_lock_init(&port->lock); + + port->type = serial_console_port->type; + + if (port->flags & UPF_IOREMAP) + sci_config_port(port, 0); + + if (serial_console_port->enable) + serial_console_port->enable(port); + if (options) uart_parse_options(options, &baud, &parity, &bits, &flow); @@ -1604,17 +1226,17 @@ .device = uart_console_device, .write = serial_console_write, .setup = serial_console_setup, - .flags = CON_PRINTBUFFER, + .flags = CON_PRINTBUFFER, .index = -1, .data = &sci_uart_driver, }; static int __init sci_console_init(void) { + sci_init_ports(); register_console(&serial_console); return 0; } - console_initcall(sci_console_init); #endif /* CONFIG_SERIAL_SH_SCI_CONSOLE */ @@ -1649,6 +1271,8 @@ int parity = 'n'; int flow = 'n'; + spin_lock_init(&port->lock); + if (co->index != kgdb_portnum) co->index = kgdb_portnum; @@ -1677,10 +1301,10 @@ /* Register the KGDB console so we get messages (d'oh!) */ static int __init kgdb_console_init(void) { + sci_init_ports(); register_console(&kgdb_console); return 0; } - console_initcall(kgdb_console_init); #endif /* CONFIG_SH_KGDB_CONSOLE */ @@ -1701,60 +1325,132 @@ .dev_name = "ttySC", .major = SCI_MAJOR, .minor = SCI_MINOR_START, + .nr = SCI_NPORTS, .cons = SCI_CONSOLE, }; -static int __init sci_init(void) +/* + * Register a set of serial devices attached to a platform device. The + * list is terminated with a zero flags entry, which means we expect + * all entries to have at least UPF_BOOT_AUTOCONF set. Platforms that need + * remapping (such as sh64) should also set UPF_IOREMAP. + */ +static int __devinit sci_probe(struct platform_device *dev) { - int chan, ret; + struct plat_sci_port *p = dev->dev.platform_data; + int i; - printk("%s", banner); + for (i = 0; p && p->flags != 0 && i < SCI_NPORTS; p++, i++) { + struct sci_port *sciport = &sci_ports[i]; - sci_uart_driver.nr = ARRAY_SIZE(sci_ports); + sciport->port.mapbase = p->mapbase; - ret = uart_register_driver(&sci_uart_driver); - if (ret == 0) { - for (chan = 0; chan < SCI_NPORTS; chan++) { - struct sci_port *sciport = &sci_ports[chan]; + /* + * For the simple (and majority of) cases where we don't need + * to do any remapping, just cast the cookie directly. + */ + if (p->mapbase && !p->membase && !(p->flags & UPF_IOREMAP)) + p->membase = (void __iomem *)p->mapbase; -#if defined(__H8300H__) || defined(__H8300S__) - sciport->port.uartclk = CONFIG_CPU_CLOCK; -#elif defined(CONFIG_SUPERH64) - sciport->port.uartclk = current_cpu_data.module_clock * 16; -#else - struct clk *clk = clk_get("module_clk"); - sciport->port.uartclk = clk_get_rate(clk) * 16; - clk_put(clk); -#endif - uart_add_one_port(&sci_uart_driver, &sciport->port); - sciport->break_timer.data = (unsigned long)sciport; - sciport->break_timer.function = sci_break_timer; - init_timer(&sciport->break_timer); - } + sciport->port.membase = p->membase; + + sciport->port.irq = p->irqs[SCIx_TXI_IRQ]; + sciport->port.flags = p->flags; + sciport->port.dev = &dev->dev; + + sciport->type = sciport->port.type = p->type; + + memcpy(&sciport->irqs, &p->irqs, sizeof(p->irqs)); + + uart_add_one_port(&sci_uart_driver, &sciport->port); } #ifdef CONFIG_CPU_FREQ cpufreq_register_notifier(&sci_nb, CPUFREQ_TRANSITION_NOTIFIER); - printk("sci: CPU frequency notifier registered\n"); + dev_info(&dev->dev, "sci: CPU frequency notifier registered\n"); #endif #ifdef CONFIG_SH_STANDARD_BIOS sh_bios_gdb_detach(); #endif + return 0; +} + +static int __devexit sci_remove(struct platform_device *dev) +{ + int i; + + for (i = 0; i < SCI_NPORTS; i++) + uart_remove_one_port(&sci_uart_driver, &sci_ports[i].port); + + return 0; +} + +static int sci_suspend(struct platform_device *dev, pm_message_t state) +{ + int i; + + for (i = 0; i < SCI_NPORTS; i++) { + struct sci_port *p = &sci_ports[i]; + + if (p->type != PORT_UNKNOWN && p->port.dev == &dev->dev) + uart_suspend_port(&sci_uart_driver, &p->port); + } + + return 0; +} + +static int sci_resume(struct platform_device *dev) +{ + int i; + + for (i = 0; i < SCI_NPORTS; i++) { + struct sci_port *p = &sci_ports[i]; + + if (p->type != PORT_UNKNOWN && p->port.dev == &dev->dev) + uart_resume_port(&sci_uart_driver, &p->port); + } + + return 0; +} + +static struct platform_driver sci_driver = { + .probe = sci_probe, + .remove = __devexit_p(sci_remove), + .suspend = sci_suspend, + .resume = sci_resume, + .driver = { + .name = "sh-sci", + .owner = THIS_MODULE, + }, +}; + +static int __init sci_init(void) +{ + int ret; + + printk(banner); + + sci_init_ports(); + + ret = uart_register_driver(&sci_uart_driver); + if (likely(ret == 0)) { + ret = platform_driver_register(&sci_driver); + if (unlikely(ret)) + uart_unregister_driver(&sci_uart_driver); + } + return ret; } static void __exit sci_exit(void) { - int chan; - - for (chan = 0; chan < SCI_NPORTS; chan++) - uart_remove_one_port(&sci_uart_driver, &sci_ports[chan].port); - + platform_driver_unregister(&sci_driver); uart_unregister_driver(&sci_uart_driver); } module_init(sci_init); module_exit(sci_exit); +MODULE_LICENSE("GPL");
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h index ab320fa..28643c4 100644 --- a/drivers/serial/sh-sci.h +++ b/drivers/serial/sh-sci.h
@@ -10,7 +10,9 @@ * Modified to support SH7300(SH-Mobile) SCIF. Takashi Kusuda (Jun 2003). * Modified to support H8/300 Series Yoshinori Sato (Feb 2004). */ +#include <linux/config.h> #include <linux/serial_core.h> +#include <asm/io.h> #if defined(__H8300H__) || defined(__H8300S__) #include <asm/gpio.h> @@ -22,40 +24,13 @@ #endif #endif -/* Offsets into the sci_port->irqs array */ -#define SCIx_ERI_IRQ 0 -#define SCIx_RXI_IRQ 1 -#define SCIx_TXI_IRQ 2 - -/* ERI, RXI, TXI, BRI */ -#define SCI_IRQS { 23, 24, 25, 0 } -#define SH3_SCIF_IRQS { 56, 57, 59, 58 } -#define SH3_IRDA_IRQS { 52, 53, 55, 54 } -#define SH4_SCIF_IRQS { 40, 41, 43, 42 } -#define STB1_SCIF1_IRQS {23, 24, 26, 25 } -#define SH7760_SCIF0_IRQS { 52, 53, 55, 54 } -#define SH7760_SCIF1_IRQS { 72, 73, 75, 74 } -#define SH7760_SCIF2_IRQS { 76, 77, 79, 78 } -#define SH7300_SCIF0_IRQS {80, 80, 80, 80 } -#define SH73180_SCIF_IRQS {80, 81, 83, 82 } -#define H8300H_SCI_IRQS0 {52, 53, 54, 0 } -#define H8300H_SCI_IRQS1 {56, 57, 58, 0 } -#define H8300H_SCI_IRQS2 {60, 61, 62, 0 } -#define H8S_SCI_IRQS0 {88, 89, 90, 0 } -#define H8S_SCI_IRQS1 {92, 93, 94, 0 } -#define H8S_SCI_IRQS2 {96, 97, 98, 0 } -#define SH5_SCIF_IRQS {39, 40, 42, 0 } -#define SH7770_SCIF0_IRQS {61, 61, 61, 61 } -#define SH7770_SCIF1_IRQS {62, 62, 62, 62 } -#define SH7770_SCIF2_IRQS {63, 63, 63, 63 } -#define SH7780_SCIF0_IRQS {40, 41, 43, 42 } -#define SH7780_SCIF1_IRQS {76, 77, 79, 78 } - #if defined(CONFIG_CPU_SUBTYPE_SH7708) # define SCSPTR 0xffffff7c /* 8 bit */ # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ # define SCI_ONLY -#elif defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) +#elif defined(CONFIG_CPU_SUBTYPE_SH7707) || \ + defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) # define SCPCR 0xA4000116 /* 16 bit SCI and SCIF */ # define SCPDR 0xA4000136 /* 8 bit SCI and SCIF */ # define SCSCR_INIT(port) 0x30 /* TIE=0,RIE=0,TE=1,RE=1 */ @@ -99,12 +74,23 @@ # define SCPDR 0xA4050136 /* 16 bit SCIF */ # define SCSCR_INIT(port) 0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */ # define SCIF_ONLY +#elif defined(CONFIG_CPU_SUBTYPE_SH7710) +# define SCSPTR0 0xA4400000 /* 16 bit SCIF */ +# define SCSCR_INIT(port) 0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */ +# define SCIF_ONLY #elif defined(CONFIG_CPU_SUBTYPE_SH73180) # define SCPDR 0xA4050138 /* 16 bit SCIF */ # define SCSPTR2 SCPDR # define SCIF_ORER 0x0001 /* overrun error bit */ # define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1 */ # define SCIF_ONLY +#elif defined(CONFIG_CPU_SUBTYPE_SH7343) +# define SCSPTR0 0xffe00010 /* 16 bit SCIF */ +# define SCSPTR1 0xffe10010 /* 16 bit SCIF */ +# define SCSPTR2 0xffe20010 /* 16 bit SCIF */ +# define SCSPTR3 0xffe30010 /* 16 bit SCIF */ +# define SCSCR_INIT(port) 0x32 /* TIE=0,RIE=0,TE=1,RE=1,REIE=0,CKE=1 */ +# define SCIF_ONLY #elif defined(CONFIG_CPU_SUBTYPE_SH4_202) # define SCSPTR2 0xffe80020 /* 16 bit SCIF */ # define SCIF_ORER 0x0001 /* overrun error bit */ @@ -145,7 +131,7 @@ #elif defined(CONFIG_CPU_SUBTYPE_SH7780) # define SCSPTR0 0xffe00024 /* 16 bit SCIF */ # define SCSPTR1 0xffe10024 /* 16 bit SCIF */ -# define SCIF_OPER 0x0001 /* Overrun error bit */ +# define SCIF_ORER 0x0001 /* Overrun error bit */ # define SCSCR_INIT(port) 0x3a /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */ # define SCIF_ONLY #else @@ -273,15 +259,6 @@ */ #define SCI_EVENT_WRITE_WAKEUP 0 -struct sci_port { - struct uart_port port; - int type; - unsigned char irqs[4]; /* ERI, RXI, TXI, BRI */ - void (*init_pins)(struct uart_port *port, unsigned int cflag); - int break_flag; - struct timer_list break_timer; -}; - #define SCI_IN(size, offset) \ unsigned int addr = port->mapbase + (offset); \ if ((size) == 8) { \ @@ -336,7 +313,9 @@ } #ifdef CONFIG_CPU_SH3 -#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) +#if defined(CONFIG_CPU_SUBTYPE_SH7300) || \ + defined(CONFIG_CPU_SUBTYPE_SH7705) || \ + defined(CONFIG_CPU_SUBTYPE_SH7710) #define SCIF_FNS(name, scif_offset, scif_size) \ CPU_SCIF_FNS(name, scif_offset, scif_size) #else @@ -362,7 +341,9 @@ CPU_SCIF_FNS(name, sh4_scif_offset, sh4_scif_size) #endif -#if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) +#if defined(CONFIG_CPU_SUBTYPE_SH7300) || \ + defined(CONFIG_CPU_SUBTYPE_SH7705) || \ + defined(CONFIG_CPU_SUBTYPE_SH7710) SCIF_FNS(SCSMR, 0x00, 16) SCIF_FNS(SCBRR, 0x04, 8) SCIF_FNS(SCSCR, 0x08, 16) @@ -447,7 +428,9 @@ return ctrl_inb(SCSPTR)&0x01 ? 1 : 0; /* SCI */ return 1; } -#elif defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) +#elif defined(CONFIG_CPU_SUBTYPE_SH7707) || \ + defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) static inline int sci_rxd_in(struct uart_port *port) { if (port->mapbase == 0xfffffe80) @@ -467,6 +450,13 @@ return ctrl_inb(SCPDR)&0x10 ? 1 : 0; /* SCIF */ return 1; } +#elif defined(CONFIG_CPU_SUBTYPE_SH7710) +static inline int sci_rxd_in(struct uart_port *port) +{ + if (port->mapbase == SCSPTR0) + return ctrl_inw(SCSPTR0 + 0x10) & 0x01 ? 1 : 0; + return 1; +} #elif defined(CONFIG_CPU_SUBTYPE_SH7750) || \ defined(CONFIG_CPU_SUBTYPE_SH7751) || \ defined(CONFIG_CPU_SUBTYPE_SH4_202) @@ -504,6 +494,19 @@ { return ctrl_inb(SCPDR)&0x01 ? 1 : 0; /* SCIF0 */ } +#elif defined(CONFIG_CPU_SUBTYPE_SH7343) +static inline int sci_rxd_in(struct uart_port *port) +{ + if (port->mapbase == 0xffe00000) + return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */ + if (port->mapbase == 0xffe10000) + return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */ + if (port->mapbase == 0xffe20000) + return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */ + if (port->mapbase == 0xffe30000) + return ctrl_inw(SCSPTR3) & 0x0001 ? 1 : 0; /* SCIF */ + return 1; +} #elif defined(CONFIG_CPU_SUBTYPE_ST40STB1) static inline int sci_rxd_in(struct uart_port *port) { @@ -587,4 +590,3 @@ #else /* Generic SH */ #define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1) #endif -
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index 0050431..f9b1719 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig
@@ -25,6 +25,7 @@ default y if PXA27x default y if ARCH_EP93XX default y if (ARCH_AT91RM9200 || ARCH_AT91SAM9261) + default y if ARCH_PNX4008 # PPC: default y if STB03xxx default y if PPC_MPC52xx
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index 4710eb0..97d57cf 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_USB_OHCI_HCD) += host/ obj-$(CONFIG_USB_UHCI_HCD) += host/ obj-$(CONFIG_USB_SL811_HCD) += host/ +obj-$(CONFIG_USB_U132_HCD) += host/ obj-$(CONFIG_ETRAX_USB_HOST) += host/ obj-$(CONFIG_USB_OHCI_AT91) += host/ @@ -23,6 +24,7 @@ obj-$(CONFIG_USB_STORAGE) += storage/ obj-$(CONFIG_USB) += storage/ +obj-$(CONFIG_USB_ACECAD) += input/ obj-$(CONFIG_USB_AIPTEK) += input/ obj-$(CONFIG_USB_ATI_REMOTE) += input/ obj-$(CONFIG_USB_HID) += input/ @@ -31,8 +33,8 @@ obj-$(CONFIG_USB_MOUSE) += input/ obj-$(CONFIG_USB_MTOUCH) += input/ obj-$(CONFIG_USB_POWERMATE) += input/ +obj-$(CONFIG_USB_TRANCEVIBRATOR)+= input/ obj-$(CONFIG_USB_WACOM) += input/ -obj-$(CONFIG_USB_ACECAD) += input/ obj-$(CONFIG_USB_XPAD) += input/ obj-$(CONFIG_USB_CATC) += net/ @@ -47,22 +49,24 @@ obj-$(CONFIG_USB_SERIAL) += serial/ +obj-$(CONFIG_USB_ADUTUX) += misc/ +obj-$(CONFIG_USB_APPLEDISPLAY) += misc/ obj-$(CONFIG_USB_AUERSWALD) += misc/ obj-$(CONFIG_USB_CYPRESS_CY7C63)+= misc/ obj-$(CONFIG_USB_CYTHERM) += misc/ obj-$(CONFIG_USB_EMI26) += misc/ obj-$(CONFIG_USB_EMI62) += misc/ +obj-$(CONFIG_USB_FTDI_ELAN) += misc/ obj-$(CONFIG_USB_IDMOUSE) += misc/ obj-$(CONFIG_USB_LCD) += misc/ obj-$(CONFIG_USB_LD) += misc/ obj-$(CONFIG_USB_LED) += misc/ obj-$(CONFIG_USB_LEGOTOWER) += misc/ +obj-$(CONFIG_USB_PHIDGETSERVO) += misc/ obj-$(CONFIG_USB_RIO500) += misc/ +obj-$(CONFIG_USB_SISUSBVGA) += misc/ obj-$(CONFIG_USB_TEST) += misc/ obj-$(CONFIG_USB_USS720) += misc/ -obj-$(CONFIG_USB_PHIDGETSERVO) += misc/ -obj-$(CONFIG_USB_SISUSBVGA) += misc/ -obj-$(CONFIG_USB_APPLEDISPLAY) += misc/ obj-$(CONFIG_USB_ATM) += atm/ obj-$(CONFIG_USB_SPEEDTOUCH) += atm/
diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c index b38990a..465961a26 100644 --- a/drivers/usb/atm/ueagle-atm.c +++ b/drivers/usb/atm/ueagle-atm.c
@@ -1621,26 +1621,32 @@ return ret; } -static void create_fs_entries(struct uea_softc *sc, struct usb_interface *intf) +static struct attribute *attrs[] = { + &dev_attr_stat_status.attr, + &dev_attr_stat_mflags.attr, + &dev_attr_stat_human_status.attr, + &dev_attr_stat_delin.attr, + &dev_attr_stat_vidcpe.attr, + &dev_attr_stat_usrate.attr, + &dev_attr_stat_dsrate.attr, + &dev_attr_stat_usattenuation.attr, + &dev_attr_stat_dsattenuation.attr, + &dev_attr_stat_usmargin.attr, + &dev_attr_stat_dsmargin.attr, + &dev_attr_stat_txflow.attr, + &dev_attr_stat_rxflow.attr, + &dev_attr_stat_uscorr.attr, + &dev_attr_stat_dscorr.attr, + &dev_attr_stat_usunc.attr, + &dev_attr_stat_dsunc.attr, +}; +static struct attribute_group attr_grp = { + .attrs = attrs, +}; + +static int create_fs_entries(struct usb_interface *intf) { - /* sysfs interface */ - device_create_file(&intf->dev, &dev_attr_stat_status); - device_create_file(&intf->dev, &dev_attr_stat_mflags); - device_create_file(&intf->dev, &dev_attr_stat_human_status); - device_create_file(&intf->dev, &dev_attr_stat_delin); - device_create_file(&intf->dev, &dev_attr_stat_vidcpe); - device_create_file(&intf->dev, &dev_attr_stat_usrate); - device_create_file(&intf->dev, &dev_attr_stat_dsrate); - device_create_file(&intf->dev, &dev_attr_stat_usattenuation); - device_create_file(&intf->dev, &dev_attr_stat_dsattenuation); - device_create_file(&intf->dev, &dev_attr_stat_usmargin); - device_create_file(&intf->dev, &dev_attr_stat_dsmargin); - device_create_file(&intf->dev, &dev_attr_stat_txflow); - device_create_file(&intf->dev, &dev_attr_stat_rxflow); - device_create_file(&intf->dev, &dev_attr_stat_uscorr); - device_create_file(&intf->dev, &dev_attr_stat_dscorr); - device_create_file(&intf->dev, &dev_attr_stat_usunc); - device_create_file(&intf->dev, &dev_attr_stat_dsunc); + return sysfs_create_group(&intf->dev.kobj, &attr_grp); } static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf, @@ -1708,37 +1714,25 @@ return ret; } - create_fs_entries(sc, intf); + ret = create_fs_entries(intf); + if (ret) { + uea_stop(sc); + kfree(sc); + return ret; + } return 0; } -static void destroy_fs_entries(struct uea_softc *sc, struct usb_interface *intf) +static void destroy_fs_entries(struct usb_interface *intf) { - /* sysfs interface */ - device_remove_file(&intf->dev, &dev_attr_stat_status); - device_remove_file(&intf->dev, &dev_attr_stat_mflags); - device_remove_file(&intf->dev, &dev_attr_stat_human_status); - device_remove_file(&intf->dev, &dev_attr_stat_delin); - device_remove_file(&intf->dev, &dev_attr_stat_vidcpe); - device_remove_file(&intf->dev, &dev_attr_stat_usrate); - device_remove_file(&intf->dev, &dev_attr_stat_dsrate); - device_remove_file(&intf->dev, &dev_attr_stat_usattenuation); - device_remove_file(&intf->dev, &dev_attr_stat_dsattenuation); - device_remove_file(&intf->dev, &dev_attr_stat_usmargin); - device_remove_file(&intf->dev, &dev_attr_stat_dsmargin); - device_remove_file(&intf->dev, &dev_attr_stat_txflow); - device_remove_file(&intf->dev, &dev_attr_stat_rxflow); - device_remove_file(&intf->dev, &dev_attr_stat_uscorr); - device_remove_file(&intf->dev, &dev_attr_stat_dscorr); - device_remove_file(&intf->dev, &dev_attr_stat_usunc); - device_remove_file(&intf->dev, &dev_attr_stat_dsunc); + sysfs_remove_group(&intf->dev.kobj, &attr_grp); } static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf) { struct uea_softc *sc = usbatm->driver_data; - destroy_fs_entries(sc, intf); + destroy_fs_entries(intf); uea_stop(sc); kfree(sc); }
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index 48dee4b8..9cac11c 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c
@@ -813,7 +813,7 @@ return 0; } -static struct file_operations usblp_fops = { +static const struct file_operations usblp_fops = { .owner = THIS_MODULE, .read = usblp_read, .write = usblp_write, @@ -927,7 +927,9 @@ /* Retrieve and store the device ID string. */ usblp_cache_device_id_string(usblp); - device_create_file(&intf->dev, &dev_attr_ieee1284_id); + retval = device_create_file(&intf->dev, &dev_attr_ieee1284_id); + if (retval) + goto abort_intfdata; #ifdef DEBUG usblp_check_status(usblp, 0); @@ -1021,18 +1023,13 @@ for (e = 0; e < ifd->desc.bNumEndpoints; e++) { epd = &ifd->endpoint[e].desc; - if ((epd->bmAttributes&USB_ENDPOINT_XFERTYPE_MASK)!= - USB_ENDPOINT_XFER_BULK) - continue; - - if (!(epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK)) { + if (usb_endpoint_is_bulk_out(epd)) if (!epwrite) epwrite = epd; - } else { + if (usb_endpoint_is_bulk_in(epd)) if (!epread) epread = epd; - } } /* Ignore buggy hardware without the right endpoints. */
diff --git a/drivers/usb/core/Makefile b/drivers/usb/core/Makefile index ec51092..34e9bac 100644 --- a/drivers/usb/core/Makefile +++ b/drivers/usb/core/Makefile
@@ -4,7 +4,7 @@ usbcore-objs := usb.o hub.o hcd.o urb.o message.o driver.o \ config.o file.o buffer.o sysfs.o endpoint.o \ - devio.o notify.o + devio.o notify.o generic.o ifeq ($(CONFIG_PCI),y) usbcore-objs += hcd-pci.o
diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c index f4f4ef0..840442a 100644 --- a/drivers/usb/core/buffer.c +++ b/drivers/usb/core/buffer.c
@@ -104,7 +104,7 @@ dma_addr_t *dma ) { - struct usb_hcd *hcd = bus->hcpriv; + struct usb_hcd *hcd = bus_to_hcd(bus); int i; /* some USB hosts just use PIO */ @@ -127,7 +127,7 @@ dma_addr_t dma ) { - struct usb_hcd *hcd = bus->hcpriv; + struct usb_hcd *hcd = bus_to_hcd(bus); int i; if (!addr)
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c index 4c9e63e..bfb3731 100644 --- a/drivers/usb/core/config.c +++ b/drivers/usb/core/config.c
@@ -475,7 +475,9 @@ if (result < 0) { dev_err(ddev, "unable to read config index %d " "descriptor/%s\n", cfgno, "start"); - goto err; + dev_err(ddev, "chopping to %d config(s)\n", cfgno); + dev->descriptor.bNumConfigurations = cfgno; + break; } else if (result < 4) { dev_err(ddev, "config index %d descriptor too short " "(expected %i, got %i)\n", cfgno,
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c index c0f3734..3538c2f 100644 --- a/drivers/usb/core/devices.c +++ b/drivers/usb/core/devices.c
@@ -593,7 +593,7 @@ /* Kernel lock for "lastev" protection */ static unsigned int usb_device_poll(struct file *file, struct poll_table_struct *wait) { - struct usb_device_status *st = (struct usb_device_status *)file->private_data; + struct usb_device_status *st = file->private_data; unsigned int mask = 0; lock_kernel(); @@ -603,7 +603,7 @@ unlock_kernel(); return POLLIN; } - + /* we may have dropped BKL - need to check for having lost the race */ if (file->private_data) { kfree(st); @@ -667,7 +667,7 @@ return ret; } -struct file_operations usbfs_devices_fops = { +const struct file_operations usbfs_devices_fops = { .llseek = usb_device_lseek, .read = usb_device_read, .poll = usb_device_poll,
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 218621b..a94c63b 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c
@@ -59,6 +59,9 @@ #define USB_DEVICE_MAX USB_MAXBUS * 128 static struct class *usb_device_class; +/* Mutual exclusion for removal, open, and release */ +DEFINE_MUTEX(usbfs_mutex); + struct async { struct list_head asynclist; struct dev_state *ps; @@ -87,9 +90,10 @@ #define MAX_USBFS_BUFFER_SIZE 16384 -static inline int connected (struct usb_device *dev) +static inline int connected (struct dev_state *ps) { - return dev->state != USB_STATE_NOTATTACHED; + return (!list_empty(&ps->list) && + ps->dev->state != USB_STATE_NOTATTACHED); } static loff_t usbdev_lseek(struct file *file, loff_t offset, int orig) @@ -118,7 +122,7 @@ static ssize_t usbdev_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { - struct dev_state *ps = (struct dev_state *)file->private_data; + struct dev_state *ps = file->private_data; struct usb_device *dev = ps->dev; ssize_t ret = 0; unsigned len; @@ -127,7 +131,7 @@ pos = *ppos; usb_lock_device(dev); - if (!connected(dev)) { + if (!connected(ps)) { ret = -ENODEV; goto err; } else if (pos < 0) { @@ -301,7 +305,7 @@ static void async_completed(struct urb *urb, struct pt_regs *regs) { - struct async *as = (struct async *)urb->context; + struct async *as = urb->context; struct dev_state *ps = as->ps; struct siginfo sinfo; @@ -541,25 +545,25 @@ struct dev_state *ps; int ret; - /* - * no locking necessary here, as chrdev_open has the kernel lock - * (still acquire the kernel lock for safety) - */ + /* Protect against simultaneous removal or release */ + mutex_lock(&usbfs_mutex); + ret = -ENOMEM; if (!(ps = kmalloc(sizeof(struct dev_state), GFP_KERNEL))) - goto out_nolock; + goto out; - lock_kernel(); ret = -ENOENT; /* check if we are called from a real node or usbfs */ if (imajor(inode) == USB_DEVICE_MAJOR) dev = usbdev_lookup_minor(iminor(inode)); if (!dev) - dev = inode->u.generic_ip; - if (!dev) { - kfree(ps); + dev = inode->i_private; + if (!dev) goto out; - } + ret = usb_autoresume_device(dev, 1); + if (ret) + goto out; + usb_get_dev(dev); ret = 0; ps->dev = dev; @@ -579,30 +583,36 @@ list_add_tail(&ps->list, &dev->filelist); file->private_data = ps; out: - unlock_kernel(); - out_nolock: - return ret; + if (ret) + kfree(ps); + mutex_unlock(&usbfs_mutex); + return ret; } static int usbdev_release(struct inode *inode, struct file *file) { - struct dev_state *ps = (struct dev_state *)file->private_data; + struct dev_state *ps = file->private_data; struct usb_device *dev = ps->dev; unsigned int ifnum; usb_lock_device(dev); + + /* Protect against simultaneous open */ + mutex_lock(&usbfs_mutex); list_del_init(&ps->list); + mutex_unlock(&usbfs_mutex); + for (ifnum = 0; ps->ifclaimed && ifnum < 8*sizeof(ps->ifclaimed); ifnum++) { if (test_bit(ifnum, &ps->ifclaimed)) releaseintf(ps, ifnum); } destroy_all_async(ps); + usb_autosuspend_device(dev, 1); usb_unlock_device(dev); usb_put_dev(dev); - ps->dev = NULL; kfree(ps); - return 0; + return 0; } static int proc_control(struct dev_state *ps, void __user *arg) @@ -1322,7 +1332,7 @@ } } - if (!connected(ps->dev)) { + if (!connected(ps)) { kfree(buf); return -ENODEV; } @@ -1349,7 +1359,7 @@ /* let kernel drivers try to (re)bind to the interface */ case USBDEVFS_CONNECT: usb_unlock_device(ps->dev); - bus_rescan_devices(intf->dev.bus); + retval = bus_rescan_devices(intf->dev.bus); usb_lock_device(ps->dev); break; @@ -1413,7 +1423,7 @@ */ static int usbdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { - struct dev_state *ps = (struct dev_state *)file->private_data; + struct dev_state *ps = file->private_data; struct usb_device *dev = ps->dev; void __user *p = (void __user *)arg; int ret = -ENOTTY; @@ -1421,7 +1431,7 @@ if (!(file->f_mode & FMODE_WRITE)) return -EPERM; usb_lock_device(dev); - if (!connected(dev)) { + if (!connected(ps)) { usb_unlock_device(dev); return -ENODEV; } @@ -1556,18 +1566,18 @@ /* No kernel lock - fine */ static unsigned int usbdev_poll(struct file *file, struct poll_table_struct *wait) { - struct dev_state *ps = (struct dev_state *)file->private_data; - unsigned int mask = 0; + struct dev_state *ps = file->private_data; + unsigned int mask = 0; poll_wait(file, &ps->wait, wait); if (file->f_mode & FMODE_WRITE && !list_empty(&ps->async_completed)) mask |= POLLOUT | POLLWRNORM; - if (!connected(ps->dev)) + if (!connected(ps)) mask |= POLLERR | POLLHUP; return mask; } -struct file_operations usbfs_device_file_operations = { +const struct file_operations usbfs_device_file_operations = { .llseek = usbdev_lseek, .read = usbdev_read, .poll = usbdev_poll,
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index ec89065..b104632 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c
@@ -17,7 +17,8 @@ * * NOTE! This is not actually a driver at all, rather this is * just a collection of helper routines that implement the - * generic USB things that the real drivers can use.. + * matching, probing, releasing, suspending and resuming for + * real drivers. * */ @@ -34,38 +35,6 @@ struct usb_device_id id; }; - -static int generic_probe(struct device *dev) -{ - return 0; -} -static int generic_remove(struct device *dev) -{ - struct usb_device *udev = to_usb_device(dev); - - /* if this is only an unbind, not a physical disconnect, then - * unconfigure the device */ - if (udev->state == USB_STATE_CONFIGURED) - usb_set_configuration(udev, 0); - - /* in case the call failed or the device was suspended */ - if (udev->state >= USB_STATE_CONFIGURED) - usb_disable_device(udev, 0); - return 0; -} - -struct device_driver usb_generic_driver = { - .owner = THIS_MODULE, - .name = "usb", - .bus = &usb_bus_type, - .probe = generic_probe, - .remove = generic_remove, -}; - -/* Fun hack to determine if the struct device is a - * usb device or a usb interface. */ -int usb_generic_driver_data; - #ifdef CONFIG_HOTPLUG /* @@ -80,6 +49,7 @@ u32 idVendor = 0; u32 idProduct = 0; int fields = 0; + int retval = 0; fields = sscanf(buf, "%x %x", &idVendor, &idProduct); if (fields < 2) @@ -99,10 +69,12 @@ spin_unlock(&usb_drv->dynids.lock); if (get_driver(driver)) { - driver_attach(driver); + retval = driver_attach(driver); put_driver(driver); } + if (retval) + return retval; return count; } static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id); @@ -115,7 +87,7 @@ goto exit; if (usb_drv->probe != NULL) - error = sysfs_create_file(&usb_drv->driver.kobj, + error = sysfs_create_file(&usb_drv->drvwrap.driver.kobj, &driver_attr_new_id.attr); exit: return error; @@ -127,7 +99,7 @@ return; if (usb_drv->probe != NULL) - sysfs_remove_file(&usb_drv->driver.kobj, + sysfs_remove_file(&usb_drv->drvwrap.driver.kobj, &driver_attr_new_id.attr); } @@ -174,21 +146,57 @@ } -/* called from driver core with usb_bus_type.subsys writelock */ +/* called from driver core with dev locked */ +static int usb_probe_device(struct device *dev) +{ + struct usb_device_driver *udriver = to_usb_device_driver(dev->driver); + struct usb_device *udev; + int error = -ENODEV; + + dev_dbg(dev, "%s\n", __FUNCTION__); + + if (!is_usb_device(dev)) /* Sanity check */ + return error; + + udev = to_usb_device(dev); + + /* TODO: Add real matching code */ + + /* The device should always appear to be in use + * unless the driver suports autosuspend. + */ + udev->pm_usage_cnt = !(udriver->supports_autosuspend); + + error = udriver->probe(udev); + return error; +} + +/* called from driver core with dev locked */ +static int usb_unbind_device(struct device *dev) +{ + struct usb_device_driver *udriver = to_usb_device_driver(dev->driver); + + udriver->disconnect(to_usb_device(dev)); + return 0; +} + + +/* called from driver core with dev locked */ static int usb_probe_interface(struct device *dev) { - struct usb_interface * intf = to_usb_interface(dev); - struct usb_driver * driver = to_usb_driver(dev->driver); + struct usb_driver *driver = to_usb_driver(dev->driver); + struct usb_interface *intf; + struct usb_device *udev; const struct usb_device_id *id; int error = -ENODEV; dev_dbg(dev, "%s\n", __FUNCTION__); - if (!driver->probe) + if (is_usb_device(dev)) /* Sanity check */ return error; - /* FIXME we'd much prefer to just resume it ... */ - if (interface_to_usbdev(intf)->state == USB_STATE_SUSPENDED) - return -EHOSTUNREACH; + + intf = to_usb_interface(dev); + udev = interface_to_usbdev(intf); id = usb_match_id(intf, driver->id_table); if (!id) @@ -196,48 +204,165 @@ if (id) { dev_dbg(dev, "%s - got id\n", __FUNCTION__); + error = usb_autoresume_device(udev, 1); + if (error) + return error; + /* Interface "power state" doesn't correspond to any hardware * state whatsoever. We use it to record when it's bound to * a driver that may start I/0: it's not frozen/quiesced. */ mark_active(intf); intf->condition = USB_INTERFACE_BINDING; + + /* The interface should always appear to be in use + * unless the driver suports autosuspend. + */ + intf->pm_usage_cnt = !(driver->supports_autosuspend); + error = driver->probe(intf, id); if (error) { mark_quiesced(intf); + intf->needs_remote_wakeup = 0; intf->condition = USB_INTERFACE_UNBOUND; } else intf->condition = USB_INTERFACE_BOUND; + + usb_autosuspend_device(udev, 1); } return error; } -/* called from driver core with usb_bus_type.subsys writelock */ +/* called from driver core with dev locked */ static int usb_unbind_interface(struct device *dev) { + struct usb_driver *driver = to_usb_driver(dev->driver); struct usb_interface *intf = to_usb_interface(dev); - struct usb_driver *driver = to_usb_driver(intf->dev.driver); + struct usb_device *udev; + int error; intf->condition = USB_INTERFACE_UNBINDING; + /* Autoresume for set_interface call below */ + udev = interface_to_usbdev(intf); + error = usb_autoresume_device(udev, 1); + /* release all urbs for this interface */ usb_disable_interface(interface_to_usbdev(intf), intf); - if (driver && driver->disconnect) - driver->disconnect(intf); + driver->disconnect(intf); /* reset other interface state */ usb_set_interface(interface_to_usbdev(intf), intf->altsetting[0].desc.bInterfaceNumber, 0); usb_set_intfdata(intf, NULL); + intf->condition = USB_INTERFACE_UNBOUND; mark_quiesced(intf); + intf->needs_remote_wakeup = 0; + + if (!error) + usb_autosuspend_device(udev, 1); return 0; } +/** + * usb_driver_claim_interface - bind a driver to an interface + * @driver: the driver to be bound + * @iface: the interface to which it will be bound; must be in the + * usb device's active configuration + * @priv: driver data associated with that interface + * + * This is used by usb device drivers that need to claim more than one + * interface on a device when probing (audio and acm are current examples). + * No device driver should directly modify internal usb_interface or + * usb_device structure members. + * + * Few drivers should need to use this routine, since the most natural + * way to bind to an interface is to return the private data from + * the driver's probe() method. + * + * Callers must own the device lock and the driver model's usb_bus_type.subsys + * writelock. So driver probe() entries don't need extra locking, + * but other call contexts may need to explicitly claim those locks. + */ +int usb_driver_claim_interface(struct usb_driver *driver, + struct usb_interface *iface, void* priv) +{ + struct device *dev = &iface->dev; + struct usb_device *udev = interface_to_usbdev(iface); + int retval = 0; + + if (dev->driver) + return -EBUSY; + + dev->driver = &driver->drvwrap.driver; + usb_set_intfdata(iface, priv); + + mutex_lock_nested(&udev->pm_mutex, udev->level); + iface->condition = USB_INTERFACE_BOUND; + mark_active(iface); + iface->pm_usage_cnt = !(driver->supports_autosuspend); + mutex_unlock(&udev->pm_mutex); + + /* if interface was already added, bind now; else let + * the future device_add() bind it, bypassing probe() + */ + if (device_is_registered(dev)) + retval = device_bind_driver(dev); + + return retval; +} +EXPORT_SYMBOL(usb_driver_claim_interface); + +/** + * usb_driver_release_interface - unbind a driver from an interface + * @driver: the driver to be unbound + * @iface: the interface from which it will be unbound + * + * This can be used by drivers to release an interface without waiting + * for their disconnect() methods to be called. In typical cases this + * also causes the driver disconnect() method to be called. + * + * This call is synchronous, and may not be used in an interrupt context. + * Callers must own the device lock and the driver model's usb_bus_type.subsys + * writelock. So driver disconnect() entries don't need extra locking, + * but other call contexts may need to explicitly claim those locks. + */ +void usb_driver_release_interface(struct usb_driver *driver, + struct usb_interface *iface) +{ + struct device *dev = &iface->dev; + struct usb_device *udev = interface_to_usbdev(iface); + + /* this should never happen, don't release something that's not ours */ + if (!dev->driver || dev->driver != &driver->drvwrap.driver) + return; + + /* don't release from within disconnect() */ + if (iface->condition != USB_INTERFACE_BOUND) + return; + + /* don't release if the interface hasn't been added yet */ + if (device_is_registered(dev)) { + iface->condition = USB_INTERFACE_UNBINDING; + device_release_driver(dev); + } + + dev->driver = NULL; + usb_set_intfdata(iface, NULL); + + mutex_lock_nested(&udev->pm_mutex, udev->level); + iface->condition = USB_INTERFACE_UNBOUND; + mark_quiesced(iface); + iface->needs_remote_wakeup = 0; + mutex_unlock(&udev->pm_mutex); +} +EXPORT_SYMBOL(usb_driver_release_interface); + /* returns 0 if no match, 1 if match */ static int usb_match_one_id(struct usb_interface *interface, const struct usb_device_id *id) @@ -381,35 +506,223 @@ int usb_device_match(struct device *dev, struct device_driver *drv) { - struct usb_interface *intf; - struct usb_driver *usb_drv; - const struct usb_device_id *id; + /* devices and interfaces are handled separately */ + if (is_usb_device(dev)) { - /* check for generic driver, which we don't match any device with */ - if (drv == &usb_generic_driver) - return 0; + /* interface drivers never match devices */ + if (!is_usb_device_driver(drv)) + return 0; - intf = to_usb_interface(dev); - usb_drv = to_usb_driver(drv); - - id = usb_match_id(intf, usb_drv->id_table); - if (id) + /* TODO: Add real matching code */ return 1; - id = usb_match_dynamic_id(intf, usb_drv); - if (id) - return 1; + } else { + struct usb_interface *intf; + struct usb_driver *usb_drv; + const struct usb_device_id *id; + + /* device drivers never match interfaces */ + if (is_usb_device_driver(drv)) + return 0; + + intf = to_usb_interface(dev); + usb_drv = to_usb_driver(drv); + + id = usb_match_id(intf, usb_drv->id_table); + if (id) + return 1; + + id = usb_match_dynamic_id(intf, usb_drv); + if (id) + return 1; + } + return 0; } +#ifdef CONFIG_HOTPLUG + +/* + * This sends an uevent to userspace, typically helping to load driver + * or other modules, configure the device, and more. Drivers can provide + * a MODULE_DEVICE_TABLE to help with module loading subtasks. + * + * We're called either from khubd (the typical case) or from root hub + * (init, kapmd, modprobe, rmmod, etc), but the agents need to handle + * delays in event delivery. Use sysfs (and DEVPATH) to make sure the + * device (and this configuration!) are still present. + */ +static int usb_uevent(struct device *dev, char **envp, int num_envp, + char *buffer, int buffer_size) +{ + struct usb_interface *intf; + struct usb_device *usb_dev; + struct usb_host_interface *alt; + int i = 0; + int length = 0; + + if (!dev) + return -ENODEV; + + /* driver is often null here; dev_dbg() would oops */ + pr_debug ("usb %s: uevent\n", dev->bus_id); + + if (is_usb_device(dev)) { + usb_dev = to_usb_device(dev); + alt = NULL; + } else { + intf = to_usb_interface(dev); + usb_dev = interface_to_usbdev(intf); + alt = intf->cur_altsetting; + } + + if (usb_dev->devnum < 0) { + pr_debug ("usb %s: already deleted?\n", dev->bus_id); + return -ENODEV; + } + if (!usb_dev->bus) { + pr_debug ("usb %s: bus removed?\n", dev->bus_id); + return -ENODEV; + } + +#ifdef CONFIG_USB_DEVICEFS + /* If this is available, userspace programs can directly read + * all the device descriptors we don't tell them about. Or + * even act as usermode drivers. + * + * FIXME reduce hardwired intelligence here + */ + if (add_uevent_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "DEVICE=/proc/bus/usb/%03d/%03d", + usb_dev->bus->busnum, usb_dev->devnum)) + return -ENOMEM; +#endif + + /* per-device configurations are common */ + if (add_uevent_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "PRODUCT=%x/%x/%x", + le16_to_cpu(usb_dev->descriptor.idVendor), + le16_to_cpu(usb_dev->descriptor.idProduct), + le16_to_cpu(usb_dev->descriptor.bcdDevice))) + return -ENOMEM; + + /* class-based driver binding models */ + if (add_uevent_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "TYPE=%d/%d/%d", + usb_dev->descriptor.bDeviceClass, + usb_dev->descriptor.bDeviceSubClass, + usb_dev->descriptor.bDeviceProtocol)) + return -ENOMEM; + + if (!is_usb_device(dev)) { + + if (add_uevent_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "INTERFACE=%d/%d/%d", + alt->desc.bInterfaceClass, + alt->desc.bInterfaceSubClass, + alt->desc.bInterfaceProtocol)) + return -ENOMEM; + + if (add_uevent_var(envp, num_envp, &i, + buffer, buffer_size, &length, + "MODALIAS=usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic%02Xisc%02Xip%02X", + le16_to_cpu(usb_dev->descriptor.idVendor), + le16_to_cpu(usb_dev->descriptor.idProduct), + le16_to_cpu(usb_dev->descriptor.bcdDevice), + usb_dev->descriptor.bDeviceClass, + usb_dev->descriptor.bDeviceSubClass, + usb_dev->descriptor.bDeviceProtocol, + alt->desc.bInterfaceClass, + alt->desc.bInterfaceSubClass, + alt->desc.bInterfaceProtocol)) + return -ENOMEM; + } + + envp[i] = NULL; + + return 0; +} + +#else + +static int usb_uevent(struct device *dev, char **envp, + int num_envp, char *buffer, int buffer_size) +{ + return -ENODEV; +} + +#endif /* CONFIG_HOTPLUG */ + /** - * usb_register_driver - register a USB driver - * @new_driver: USB operations for the driver + * usb_register_device_driver - register a USB device (not interface) driver + * @new_udriver: USB operations for the device driver * @owner: module owner of this driver. * - * Registers a USB driver with the USB core. The list of unattached - * interfaces will be rescanned whenever a new driver is added, allowing - * the new driver to attach to any recognized devices. + * Registers a USB device driver with the USB core. The list of + * unattached devices will be rescanned whenever a new driver is + * added, allowing the new driver to attach to any recognized devices. + * Returns a negative error code on failure and 0 on success. + */ +int usb_register_device_driver(struct usb_device_driver *new_udriver, + struct module *owner) +{ + int retval = 0; + + if (usb_disabled()) + return -ENODEV; + + new_udriver->drvwrap.for_devices = 1; + new_udriver->drvwrap.driver.name = (char *) new_udriver->name; + new_udriver->drvwrap.driver.bus = &usb_bus_type; + new_udriver->drvwrap.driver.probe = usb_probe_device; + new_udriver->drvwrap.driver.remove = usb_unbind_device; + new_udriver->drvwrap.driver.owner = owner; + + retval = driver_register(&new_udriver->drvwrap.driver); + + if (!retval) { + pr_info("%s: registered new device driver %s\n", + usbcore_name, new_udriver->name); + usbfs_update_special(); + } else { + printk(KERN_ERR "%s: error %d registering device " + " driver %s\n", + usbcore_name, retval, new_udriver->name); + } + + return retval; +} +EXPORT_SYMBOL_GPL(usb_register_device_driver); + +/** + * usb_deregister_device_driver - unregister a USB device (not interface) driver + * @udriver: USB operations of the device driver to unregister + * Context: must be able to sleep + * + * Unlinks the specified driver from the internal USB driver list. + */ +void usb_deregister_device_driver(struct usb_device_driver *udriver) +{ + pr_info("%s: deregistering device driver %s\n", + usbcore_name, udriver->name); + + driver_unregister(&udriver->drvwrap.driver); + usbfs_update_special(); +} +EXPORT_SYMBOL_GPL(usb_deregister_device_driver); + +/** + * usb_register_driver - register a USB interface driver + * @new_driver: USB operations for the interface driver + * @owner: module owner of this driver. + * + * Registers a USB interface driver with the USB core. The list of + * unattached interfaces will be rescanned whenever a new driver is + * added, allowing the new driver to attach to any recognized interfaces. * Returns a negative error code on failure and 0 on success. * * NOTE: if you want your driver to use the USB major number, you must call @@ -423,23 +736,25 @@ if (usb_disabled()) return -ENODEV; - new_driver->driver.name = (char *)new_driver->name; - new_driver->driver.bus = &usb_bus_type; - new_driver->driver.probe = usb_probe_interface; - new_driver->driver.remove = usb_unbind_interface; - new_driver->driver.owner = owner; + new_driver->drvwrap.for_devices = 0; + new_driver->drvwrap.driver.name = (char *) new_driver->name; + new_driver->drvwrap.driver.bus = &usb_bus_type; + new_driver->drvwrap.driver.probe = usb_probe_interface; + new_driver->drvwrap.driver.remove = usb_unbind_interface; + new_driver->drvwrap.driver.owner = owner; spin_lock_init(&new_driver->dynids.lock); INIT_LIST_HEAD(&new_driver->dynids.list); - retval = driver_register(&new_driver->driver); + retval = driver_register(&new_driver->drvwrap.driver); if (!retval) { - pr_info("%s: registered new driver %s\n", + pr_info("%s: registered new interface driver %s\n", usbcore_name, new_driver->name); usbfs_update_special(); usb_create_newid_file(new_driver); } else { - printk(KERN_ERR "%s: error %d registering driver %s\n", + printk(KERN_ERR "%s: error %d registering interface " + " driver %s\n", usbcore_name, retval, new_driver->name); } @@ -448,8 +763,8 @@ EXPORT_SYMBOL_GPL_FUTURE(usb_register_driver); /** - * usb_deregister - unregister a USB driver - * @driver: USB operations of the driver to unregister + * usb_deregister - unregister a USB interface driver + * @driver: USB operations of the interface driver to unregister * Context: must be able to sleep * * Unlinks the specified driver from the internal USB driver list. @@ -460,12 +775,554 @@ */ void usb_deregister(struct usb_driver *driver) { - pr_info("%s: deregistering driver %s\n", usbcore_name, driver->name); + pr_info("%s: deregistering interface driver %s\n", + usbcore_name, driver->name); usb_remove_newid_file(driver); usb_free_dynids(driver); - driver_unregister(&driver->driver); + driver_unregister(&driver->drvwrap.driver); usbfs_update_special(); } EXPORT_SYMBOL_GPL_FUTURE(usb_deregister); + +#ifdef CONFIG_PM + +/* Caller has locked udev->pm_mutex */ +static int suspend_device(struct usb_device *udev, pm_message_t msg) +{ + struct usb_device_driver *udriver; + int status = 0; + + if (udev->state == USB_STATE_NOTATTACHED || + udev->state == USB_STATE_SUSPENDED) + goto done; + + /* For devices that don't have a driver, we do a standard suspend. */ + if (udev->dev.driver == NULL) { + udev->do_remote_wakeup = 0; + status = usb_port_suspend(udev); + goto done; + } + + udriver = to_usb_device_driver(udev->dev.driver); + status = udriver->suspend(udev, msg); + +done: + // dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); + if (status == 0) + udev->dev.power.power_state.event = msg.event; + return status; +} + +/* Caller has locked udev->pm_mutex */ +static int resume_device(struct usb_device *udev) +{ + struct usb_device_driver *udriver; + int status = 0; + + if (udev->state == USB_STATE_NOTATTACHED || + udev->state != USB_STATE_SUSPENDED) + goto done; + + /* Can't resume it if it doesn't have a driver. */ + if (udev->dev.driver == NULL) { + status = -ENOTCONN; + goto done; + } + + udriver = to_usb_device_driver(udev->dev.driver); + status = udriver->resume(udev); + +done: + // dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); + if (status == 0) + udev->dev.power.power_state.event = PM_EVENT_ON; + return status; +} + +/* Caller has locked intf's usb_device's pm_mutex */ +static int suspend_interface(struct usb_interface *intf, pm_message_t msg) +{ + struct usb_driver *driver; + int status = 0; + + /* with no hardware, USB interfaces only use FREEZE and ON states */ + if (interface_to_usbdev(intf)->state == USB_STATE_NOTATTACHED || + !is_active(intf)) + goto done; + + if (intf->condition == USB_INTERFACE_UNBOUND) /* This can't happen */ + goto done; + driver = to_usb_driver(intf->dev.driver); + + if (driver->suspend && driver->resume) { + status = driver->suspend(intf, msg); + if (status == 0) + mark_quiesced(intf); + else if (!interface_to_usbdev(intf)->auto_pm) + dev_err(&intf->dev, "%s error %d\n", + "suspend", status); + } else { + // FIXME else if there's no suspend method, disconnect... + // Not possible if auto_pm is set... + dev_warn(&intf->dev, "no suspend for driver %s?\n", + driver->name); + mark_quiesced(intf); + } + +done: + // dev_dbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status); + if (status == 0) + intf->dev.power.power_state.event = msg.event; + return status; +} + +/* Caller has locked intf's usb_device's pm_mutex */ +static int resume_interface(struct usb_interface *intf) +{ + struct usb_driver *driver; + int status = 0; + + if (interface_to_usbdev(intf)->state == USB_STATE_NOTATTACHED || + is_active(intf)) + goto done; + + /* Don't let autoresume interfere with unbinding */ + if (intf->condition == USB_INTERFACE_UNBINDING) + goto done; + + /* Can't resume it if it doesn't have a driver. */ + if (intf->condition == USB_INTERFACE_UNBOUND) { + status = -ENOTCONN; + goto done; + } + driver = to_usb_driver(intf->dev.driver); + + if (driver->resume) { + status = driver->resume(intf); + if (status) + dev_err(&intf->dev, "%s error %d\n", + "resume", status); + else + mark_active(intf); + } else { + dev_warn(&intf->dev, "no resume for driver %s?\n", + driver->name); + mark_active(intf); + } + +done: + // dev_dbg(&intf->dev, "%s: status %d\n", __FUNCTION__, status); + if (status == 0) + intf->dev.power.power_state.event = PM_EVENT_ON; + return status; +} + +/** + * usb_suspend_both - suspend a USB device and its interfaces + * @udev: the usb_device to suspend + * @msg: Power Management message describing this state transition + * + * This is the central routine for suspending USB devices. It calls the + * suspend methods for all the interface drivers in @udev and then calls + * the suspend method for @udev itself. If an error occurs at any stage, + * all the interfaces which were suspended are resumed so that they remain + * in the same state as the device. + * + * If an autosuspend is in progress (@udev->auto_pm is set), the routine + * checks first to make sure that neither the device itself or any of its + * active interfaces is in use (pm_usage_cnt is greater than 0). If they + * are, the autosuspend fails. + * + * If the suspend succeeds, the routine recursively queues an autosuspend + * request for @udev's parent device, thereby propagating the change up + * the device tree. If all of the parent's children are now suspended, + * the parent will autosuspend in turn. + * + * The suspend method calls are subject to mutual exclusion under control + * of @udev's pm_mutex. Many of these calls are also under the protection + * of @udev's device lock (including all requests originating outside the + * USB subsystem), but autosuspend requests generated by a child device or + * interface driver may not be. Usbcore will insure that the method calls + * do not arrive during bind, unbind, or reset operations. However, drivers + * must be prepared to handle suspend calls arriving at unpredictable times. + * The only way to block such calls is to do an autoresume (preventing + * autosuspends) while holding @udev's device lock (preventing outside + * suspends). + * + * The caller must hold @udev->pm_mutex. + * + * This routine can run only in process context. + */ +int usb_suspend_both(struct usb_device *udev, pm_message_t msg) +{ + int status = 0; + int i = 0; + struct usb_interface *intf; + struct usb_device *parent = udev->parent; + + cancel_delayed_work(&udev->autosuspend); + if (udev->state == USB_STATE_NOTATTACHED) + return 0; + if (udev->state == USB_STATE_SUSPENDED) + return 0; + + udev->do_remote_wakeup = device_may_wakeup(&udev->dev); + + /* For autosuspend, fail fast if anything is in use. + * Also fail if any interfaces require remote wakeup but it + * isn't available. */ + if (udev->auto_pm) { + if (udev->pm_usage_cnt > 0) + return -EBUSY; + if (udev->actconfig) { + for (; i < udev->actconfig->desc.bNumInterfaces; i++) { + intf = udev->actconfig->interface[i]; + if (!is_active(intf)) + continue; + if (intf->pm_usage_cnt > 0) + return -EBUSY; + if (intf->needs_remote_wakeup && + !udev->do_remote_wakeup) { + dev_dbg(&udev->dev, + "remote wakeup needed for autosuspend\n"); + return -EOPNOTSUPP; + } + } + i = 0; + } + } + + /* Suspend all the interfaces and then udev itself */ + if (udev->actconfig) { + for (; i < udev->actconfig->desc.bNumInterfaces; i++) { + intf = udev->actconfig->interface[i]; + status = suspend_interface(intf, msg); + if (status != 0) + break; + } + } + if (status == 0) + status = suspend_device(udev, msg); + + /* If the suspend failed, resume interfaces that did get suspended */ + if (status != 0) { + while (--i >= 0) { + intf = udev->actconfig->interface[i]; + resume_interface(intf); + } + + /* If the suspend succeeded, propagate it up the tree */ + } else if (parent) + usb_autosuspend_device(parent, 0); + + // dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); + return status; +} + +/** + * usb_resume_both - resume a USB device and its interfaces + * @udev: the usb_device to resume + * + * This is the central routine for resuming USB devices. It calls the + * the resume method for @udev and then calls the resume methods for all + * the interface drivers in @udev. + * + * Before starting the resume, the routine calls itself recursively for + * the parent device of @udev, thereby propagating the change up the device + * tree and assuring that @udev will be able to resume. If the parent is + * unable to resume successfully, the routine fails. + * + * The resume method calls are subject to mutual exclusion under control + * of @udev's pm_mutex. Many of these calls are also under the protection + * of @udev's device lock (including all requests originating outside the + * USB subsystem), but autoresume requests generated by a child device or + * interface driver may not be. Usbcore will insure that the method calls + * do not arrive during bind, unbind, or reset operations. However, drivers + * must be prepared to handle resume calls arriving at unpredictable times. + * The only way to block such calls is to do an autoresume (preventing + * other autoresumes) while holding @udev's device lock (preventing outside + * resumes). + * + * The caller must hold @udev->pm_mutex. + * + * This routine can run only in process context. + */ +int usb_resume_both(struct usb_device *udev) +{ + int status = 0; + int i; + struct usb_interface *intf; + struct usb_device *parent = udev->parent; + + cancel_delayed_work(&udev->autosuspend); + if (udev->state == USB_STATE_NOTATTACHED) + return -ENODEV; + + /* Propagate the resume up the tree, if necessary */ + if (udev->state == USB_STATE_SUSPENDED) { + if (parent) { + mutex_lock_nested(&parent->pm_mutex, parent->level); + parent->auto_pm = 1; + status = usb_resume_both(parent); + } else { + + /* We can't progagate beyond the USB subsystem, + * so if a root hub's controller is suspended + * then we're stuck. */ + if (udev->dev.parent->power.power_state.event != + PM_EVENT_ON) + status = -EHOSTUNREACH; + } + if (status == 0) + status = resume_device(udev); + if (parent) + mutex_unlock(&parent->pm_mutex); + } else { + + /* Needed only for setting udev->dev.power.power_state.event + * and for possible debugging message. */ + status = resume_device(udev); + } + + /* Now the parent won't suspend until we are finished */ + + if (status == 0 && udev->actconfig) { + for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { + intf = udev->actconfig->interface[i]; + resume_interface(intf); + } + } + + // dev_dbg(&udev->dev, "%s: status %d\n", __FUNCTION__, status); + return status; +} + +#ifdef CONFIG_USB_SUSPEND + +/** + * usb_autosuspend_device - delayed autosuspend of a USB device and its interfaces + * @udev - the usb_device to autosuspend + * @dec_usage_cnt - flag to decrement @udev's PM-usage counter + * + * This routine should be called when a core subsystem is finished using + * @udev and wants to allow it to autosuspend. Examples would be when + * @udev's device file in usbfs is closed or after a configuration change. + * + * @dec_usage_cnt should be 1 if the subsystem previously incremented + * @udev's usage counter (such as by passing 1 to usb_autoresume_device); + * otherwise it should be 0. + * + * If the usage counter for @udev or any of its active interfaces is greater + * than 0, the autosuspend request will not be queued. (If an interface + * driver does not support autosuspend then its usage counter is permanently + * positive.) Likewise, if an interface driver requires remote-wakeup + * capability during autosuspend but remote wakeup is disabled, the + * autosuspend will fail. + * + * Often the caller will hold @udev's device lock, but this is not + * necessary. + * + * This routine can run only in process context. + */ +void usb_autosuspend_device(struct usb_device *udev, int dec_usage_cnt) +{ + mutex_lock_nested(&udev->pm_mutex, udev->level); + udev->pm_usage_cnt -= dec_usage_cnt; + if (udev->pm_usage_cnt <= 0) + schedule_delayed_work(&udev->autosuspend, + USB_AUTOSUSPEND_DELAY); + mutex_unlock(&udev->pm_mutex); + // dev_dbg(&udev->dev, "%s: cnt %d\n", + // __FUNCTION__, udev->pm_usage_cnt); +} + +/** + * usb_autoresume_device - immediately autoresume a USB device and its interfaces + * @udev - the usb_device to autoresume + * @inc_usage_cnt - flag to increment @udev's PM-usage counter + * + * This routine should be called when a core subsystem wants to use @udev + * and needs to guarantee that it is not suspended. In addition, the + * caller can prevent @udev from being autosuspended subsequently. (Note + * that this will not prevent suspend events originating in the PM core.) + * Examples would be when @udev's device file in usbfs is opened (autosuspend + * should be prevented until the file is closed) or when a remote-wakeup + * request is received (later autosuspends should not be prevented). + * + * @inc_usage_cnt should be 1 to increment @udev's usage counter and prevent + * autosuspends. This prevention will persist until the usage counter is + * decremented again (such as by passing 1 to usb_autosuspend_device). + * Otherwise @inc_usage_cnt should be 0 to leave the usage counter unchanged. + * Regardless, if the autoresume fails then the usage counter is not + * incremented. + * + * Often the caller will hold @udev's device lock, but this is not + * necessary (and attempting it might cause deadlock). + * + * This routine can run only in process context. + */ +int usb_autoresume_device(struct usb_device *udev, int inc_usage_cnt) +{ + int status; + + mutex_lock_nested(&udev->pm_mutex, udev->level); + udev->pm_usage_cnt += inc_usage_cnt; + udev->auto_pm = 1; + status = usb_resume_both(udev); + if (status != 0) + udev->pm_usage_cnt -= inc_usage_cnt; + mutex_unlock(&udev->pm_mutex); + // dev_dbg(&udev->dev, "%s: status %d cnt %d\n", + // __FUNCTION__, status, udev->pm_usage_cnt); + return status; +} + +/** + * usb_autopm_put_interface - decrement a USB interface's PM-usage counter + * @intf - the usb_interface whose counter should be decremented + * + * This routine should be called by an interface driver when it is + * finished using @intf and wants to allow it to autosuspend. A typical + * example would be a character-device driver when its device file is + * closed. + * + * The routine decrements @intf's usage counter. When the counter reaches + * 0, a delayed autosuspend request for @intf's device is queued. When + * the delay expires, if @intf->pm_usage_cnt is still <= 0 along with all + * the other usage counters for the sibling interfaces and @intf's + * usb_device, the device and all its interfaces will be autosuspended. + * + * Note that @intf->pm_usage_cnt is owned by the interface driver. The + * core will not change its value other than the increment and decrement + * in usb_autopm_get_interface and usb_autopm_put_interface. The driver + * may use this simple counter-oriented discipline or may set the value + * any way it likes. + * + * If the driver has set @intf->needs_remote_wakeup then autosuspend will + * take place only if the device's remote-wakeup facility is enabled. + * + * Suspend method calls queued by this routine can arrive at any time + * while @intf is resumed and its usage counter is equal to 0. They are + * not protected by the usb_device's lock but only by its pm_mutex. + * Drivers must provide their own synchronization. + * + * This routine can run only in process context. + */ +void usb_autopm_put_interface(struct usb_interface *intf) +{ + struct usb_device *udev = interface_to_usbdev(intf); + + mutex_lock_nested(&udev->pm_mutex, udev->level); + if (intf->condition != USB_INTERFACE_UNBOUND) { + if (--intf->pm_usage_cnt <= 0) + schedule_delayed_work(&udev->autosuspend, + USB_AUTOSUSPEND_DELAY); + } + mutex_unlock(&udev->pm_mutex); + // dev_dbg(&intf->dev, "%s: cnt %d\n", + // __FUNCTION__, intf->pm_usage_cnt); +} +EXPORT_SYMBOL_GPL(usb_autopm_put_interface); + +/** + * usb_autopm_get_interface - increment a USB interface's PM-usage counter + * @intf - the usb_interface whose counter should be incremented + * + * This routine should be called by an interface driver when it wants to + * use @intf and needs to guarantee that it is not suspended. In addition, + * the routine prevents @intf from being autosuspended subsequently. (Note + * that this will not prevent suspend events originating in the PM core.) + * This prevention will persist until usb_autopm_put_interface() is called + * or @intf is unbound. A typical example would be a character-device + * driver when its device file is opened. + * + * The routine increments @intf's usage counter. So long as the counter + * is greater than 0, autosuspend will not be allowed for @intf or its + * usb_device. When the driver is finished using @intf it should call + * usb_autopm_put_interface() to decrement the usage counter and queue + * a delayed autosuspend request (if the counter is <= 0). + * + * Note that @intf->pm_usage_cnt is owned by the interface driver. The + * core will not change its value other than the increment and decrement + * in usb_autopm_get_interface and usb_autopm_put_interface. The driver + * may use this simple counter-oriented discipline or may set the value + * any way it likes. + * + * Resume method calls generated by this routine can arrive at any time + * while @intf is suspended. They are not protected by the usb_device's + * lock but only by its pm_mutex. Drivers must provide their own + * synchronization. + * + * This routine can run only in process context. + */ +int usb_autopm_get_interface(struct usb_interface *intf) +{ + struct usb_device *udev = interface_to_usbdev(intf); + int status; + + mutex_lock_nested(&udev->pm_mutex, udev->level); + if (intf->condition == USB_INTERFACE_UNBOUND) + status = -ENODEV; + else { + ++intf->pm_usage_cnt; + udev->auto_pm = 1; + status = usb_resume_both(udev); + if (status != 0) + --intf->pm_usage_cnt; + } + mutex_unlock(&udev->pm_mutex); + // dev_dbg(&intf->dev, "%s: status %d cnt %d\n", + // __FUNCTION__, status, intf->pm_usage_cnt); + return status; +} +EXPORT_SYMBOL_GPL(usb_autopm_get_interface); + +#endif /* CONFIG_USB_SUSPEND */ + +static int usb_suspend(struct device *dev, pm_message_t message) +{ + int status; + + if (is_usb_device(dev)) { + struct usb_device *udev = to_usb_device(dev); + + mutex_lock_nested(&udev->pm_mutex, udev->level); + udev->auto_pm = 0; + status = usb_suspend_both(udev, message); + mutex_unlock(&udev->pm_mutex); + } else + status = 0; + return status; +} + +static int usb_resume(struct device *dev) +{ + int status; + + if (is_usb_device(dev)) { + struct usb_device *udev = to_usb_device(dev); + + mutex_lock_nested(&udev->pm_mutex, udev->level); + udev->auto_pm = 0; + status = usb_resume_both(udev); + mutex_unlock(&udev->pm_mutex); + + /* Rebind drivers that had no suspend method? */ + } else + status = 0; + return status; +} + +#endif /* CONFIG_PM */ + +struct bus_type usb_bus_type = { + .name = "usb", + .match = usb_device_match, + .uevent = usb_uevent, +#ifdef CONFIG_PM + .suspend = usb_suspend, + .resume = usb_resume, +#endif +};
diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c index 247b5a4..3ebb901 100644 --- a/drivers/usb/core/endpoint.c +++ b/drivers/usb/core/endpoint.c
@@ -207,9 +207,9 @@ kfree(ep_dev); } -void usb_create_ep_files(struct device *parent, - struct usb_host_endpoint *endpoint, - struct usb_device *udev) +int usb_create_ep_files(struct device *parent, + struct usb_host_endpoint *endpoint, + struct usb_device *udev) { char name[8]; struct ep_device *ep_dev; @@ -242,19 +242,33 @@ retval = device_register(&ep_dev->dev); if (retval) goto error; - sysfs_create_group(&ep_dev->dev.kobj, &ep_dev_attr_grp); + retval = sysfs_create_group(&ep_dev->dev.kobj, &ep_dev_attr_grp); + if (retval) + goto error_group; endpoint->ep_dev = ep_dev; /* create the symlink to the old-style "ep_XX" directory */ sprintf(name, "ep_%02x", endpoint->desc.bEndpointAddress); - sysfs_create_link(&parent->kobj, &endpoint->ep_dev->dev.kobj, name); - + retval = sysfs_create_link(&parent->kobj, + &endpoint->ep_dev->dev.kobj, name); + if (retval) + goto error_link; exit: - return; + return retval; + +error_link: + sysfs_remove_group(&ep_dev->dev.kobj, &ep_dev_attr_grp); + +error_group: + device_unregister(&ep_dev->dev); + endpoint->ep_dev = NULL; + destroy_endpoint_class(); + return retval; error: kfree(ep_dev); - return; + destroy_endpoint_class(); + return retval; } void usb_remove_ep_files(struct usb_host_endpoint *endpoint)
diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c index 8de4f8c..c376c65 100644 --- a/drivers/usb/core/file.c +++ b/drivers/usb/core/file.c
@@ -55,7 +55,7 @@ return err; } -static struct file_operations usb_fops = { +static const struct file_operations usb_fops = { .owner = THIS_MODULE, .open = usb_open, };
diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c new file mode 100644 index 0000000..16332cc --- /dev/null +++ b/drivers/usb/core/generic.c
@@ -0,0 +1,208 @@ +/* + * drivers/usb/generic.c - generic driver for USB devices (not interfaces) + * + * (C) Copyright 2005 Greg Kroah-Hartman <gregkh@suse.de> + * + * based on drivers/usb/usb.c which had the following copyrights: + * (C) Copyright Linus Torvalds 1999 + * (C) Copyright Johannes Erdfelt 1999-2001 + * (C) Copyright Andreas Gal 1999 + * (C) Copyright Gregory P. Smith 1999 + * (C) Copyright Deti Fliegl 1999 (new USB architecture) + * (C) Copyright Randy Dunlap 2000 + * (C) Copyright David Brownell 2000-2004 + * (C) Copyright Yggdrasil Computing, Inc. 2000 + * (usb_device_id matching changes by Adam J. Richter) + * (C) Copyright Greg Kroah-Hartman 2002-2003 + * + */ + +#include <linux/config.h> +#include <linux/usb.h> +#include "usb.h" + +static inline const char *plural(int n) +{ + return (n == 1 ? "" : "s"); +} + +static int choose_configuration(struct usb_device *udev) +{ + int i; + int num_configs; + int insufficient_power = 0; + struct usb_host_config *c, *best; + + best = NULL; + c = udev->config; + num_configs = udev->descriptor.bNumConfigurations; + for (i = 0; i < num_configs; (i++, c++)) { + struct usb_interface_descriptor *desc = NULL; + + /* It's possible that a config has no interfaces! */ + if (c->desc.bNumInterfaces > 0) + desc = &c->intf_cache[0]->altsetting->desc; + + /* + * HP's USB bus-powered keyboard has only one configuration + * and it claims to be self-powered; other devices may have + * similar errors in their descriptors. If the next test + * were allowed to execute, such configurations would always + * be rejected and the devices would not work as expected. + * In the meantime, we run the risk of selecting a config + * that requires external power at a time when that power + * isn't available. It seems to be the lesser of two evils. + * + * Bugzilla #6448 reports a device that appears to crash + * when it receives a GET_DEVICE_STATUS request! We don't + * have any other way to tell whether a device is self-powered, + * but since we don't use that information anywhere but here, + * the call has been removed. + * + * Maybe the GET_DEVICE_STATUS call and the test below can + * be reinstated when device firmwares become more reliable. + * Don't hold your breath. + */ +#if 0 + /* Rule out self-powered configs for a bus-powered device */ + if (bus_powered && (c->desc.bmAttributes & + USB_CONFIG_ATT_SELFPOWER)) + continue; +#endif + + /* + * The next test may not be as effective as it should be. + * Some hubs have errors in their descriptor, claiming + * to be self-powered when they are really bus-powered. + * We will overestimate the amount of current such hubs + * make available for each port. + * + * This is a fairly benign sort of failure. It won't + * cause us to reject configurations that we should have + * accepted. + */ + + /* Rule out configs that draw too much bus current */ + if (c->desc.bMaxPower * 2 > udev->bus_mA) { + insufficient_power++; + continue; + } + + /* If the first config's first interface is COMM/2/0xff + * (MSFT RNDIS), rule it out unless Linux has host-side + * RNDIS support. */ + if (i == 0 && desc + && desc->bInterfaceClass == USB_CLASS_COMM + && desc->bInterfaceSubClass == 2 + && desc->bInterfaceProtocol == 0xff) { +#ifndef CONFIG_USB_NET_RNDIS_HOST + continue; +#else + best = c; +#endif + } + + /* From the remaining configs, choose the first one whose + * first interface is for a non-vendor-specific class. + * Reason: Linux is more likely to have a class driver + * than a vendor-specific driver. */ + else if (udev->descriptor.bDeviceClass != + USB_CLASS_VENDOR_SPEC && + (!desc || desc->bInterfaceClass != + USB_CLASS_VENDOR_SPEC)) { + best = c; + break; + } + + /* If all the remaining configs are vendor-specific, + * choose the first one. */ + else if (!best) + best = c; + } + + if (insufficient_power > 0) + dev_info(&udev->dev, "rejected %d configuration%s " + "due to insufficient available bus power\n", + insufficient_power, plural(insufficient_power)); + + if (best) { + i = best->desc.bConfigurationValue; + dev_info(&udev->dev, + "configuration #%d chosen from %d choice%s\n", + i, num_configs, plural(num_configs)); + } else { + i = -1; + dev_warn(&udev->dev, + "no configuration chosen from %d choice%s\n", + num_configs, plural(num_configs)); + } + return i; +} + +static int generic_probe(struct usb_device *udev) +{ + int err, c; + + /* put device-specific files into sysfs */ + usb_create_sysfs_dev_files(udev); + + /* Choose and set the configuration. This registers the interfaces + * with the driver core and lets interface drivers bind to them. + */ + c = choose_configuration(udev); + if (c >= 0) { + err = usb_set_configuration(udev, c); + if (err) { + dev_err(&udev->dev, "can't set config #%d, error %d\n", + c, err); + /* This need not be fatal. The user can try to + * set other configurations. */ + } + } + + /* USB device state == configured ... usable */ + usb_notify_add_device(udev); + + return 0; +} + +static void generic_disconnect(struct usb_device *udev) +{ + usb_notify_remove_device(udev); + + /* if this is only an unbind, not a physical disconnect, then + * unconfigure the device */ + if (udev->actconfig) + usb_set_configuration(udev, 0); + + usb_remove_sysfs_dev_files(udev); +} + +#ifdef CONFIG_PM + +static int generic_suspend(struct usb_device *udev, pm_message_t msg) +{ + /* USB devices enter SUSPEND state through their hubs, but can be + * marked for FREEZE as soon as their children are already idled. + * But those semantics are useless, so we equate the two (sigh). + */ + return usb_port_suspend(udev); +} + +static int generic_resume(struct usb_device *udev) +{ + return usb_port_resume(udev); +} + +#endif /* CONFIG_PM */ + +struct usb_device_driver usb_generic_driver = { + .name = "usb", + .probe = generic_probe, + .disconnect = generic_disconnect, +#ifdef CONFIG_PM + .suspend = generic_suspend, + .resume = generic_resume, +#endif + .supports_autosuspend = 1, +};
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index 5078fb3..edf4300 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c
@@ -281,7 +281,7 @@ (void) usb_hcd_pci_resume (dev); } - } else { + } else if (hcd->state != HC_STATE_HALT) { dev_dbg (hcd->self.controller, "hcd state %d; not suspended\n", hcd->state); WARN_ON(1); @@ -413,4 +413,20 @@ #endif /* CONFIG_PM */ +/** + * usb_hcd_pci_shutdown - shutdown host controller + * @dev: USB Host Controller being shutdown + */ +void usb_hcd_pci_shutdown (struct pci_dev *dev) +{ + struct usb_hcd *hcd; + + hcd = pci_get_drvdata(dev); + if (!hcd) + return; + + if (hcd->driver->shutdown) + hcd->driver->shutdown(hcd); +} +EXPORT_SYMBOL (usb_hcd_pci_shutdown);
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index fb4d058..e86f629 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c
@@ -36,6 +36,7 @@ #include <linux/mutex.h> #include <asm/irq.h> #include <asm/byteorder.h> +#include <linux/platform_device.h> #include <linux/usb.h> @@ -632,31 +633,20 @@ /*-------------------------------------------------------------------------*/ -/* Asynchronous unlinks of root-hub control URBs are legal, but they - * don't do anything. Status URB unlinks must be made in process context - * with interrupts enabled. +/* Unlinks of root-hub control URBs are legal, but they don't do anything + * since these URBs always execute synchronously. */ static int usb_rh_urb_dequeue (struct usb_hcd *hcd, struct urb *urb) { + unsigned long flags; + if (usb_pipeendpoint(urb->pipe) == 0) { /* Control URB */ - if (in_interrupt()) - return 0; /* nothing to do */ - - spin_lock_irq(&urb->lock); /* from usb_kill_urb */ - ++urb->reject; - spin_unlock_irq(&urb->lock); - - wait_event(usb_kill_urb_queue, - atomic_read(&urb->use_count) == 0); - - spin_lock_irq(&urb->lock); - --urb->reject; - spin_unlock_irq(&urb->lock); + ; /* Do nothing */ } else { /* Status URB */ if (!hcd->uses_new_polling) - del_timer_sync (&hcd->rh_timer); - local_irq_disable (); + del_timer (&hcd->rh_timer); + local_irq_save (flags); spin_lock (&hcd_root_hub_lock); if (urb == hcd->status_urb) { hcd->status_urb = NULL; @@ -666,7 +656,7 @@ spin_unlock (&hcd_root_hub_lock); if (urb) usb_hcd_giveback_urb (hcd, urb, NULL); - local_irq_enable (); + local_irq_restore (flags); } return 0; @@ -674,31 +664,6 @@ /*-------------------------------------------------------------------------*/ -/* exported only within usbcore */ -struct usb_bus *usb_bus_get(struct usb_bus *bus) -{ - if (bus) - kref_get(&bus->kref); - return bus; -} - -static void usb_host_release(struct kref *kref) -{ - struct usb_bus *bus = container_of(kref, struct usb_bus, kref); - - if (bus->release) - bus->release(bus); -} - -/* exported only within usbcore */ -void usb_bus_put(struct usb_bus *bus) -{ - if (bus) - kref_put(&bus->kref, usb_host_release); -} - -/*-------------------------------------------------------------------------*/ - static struct class *usb_host_class; int usb_host_init(void) @@ -730,39 +695,12 @@ bus->devnum_next = 1; bus->root_hub = NULL; - bus->hcpriv = NULL; bus->busnum = -1; bus->bandwidth_allocated = 0; bus->bandwidth_int_reqs = 0; bus->bandwidth_isoc_reqs = 0; INIT_LIST_HEAD (&bus->bus_list); - - kref_init(&bus->kref); -} - -/** - * usb_alloc_bus - creates a new USB host controller structure - * @op: pointer to a struct usb_operations that this bus structure should use - * Context: !in_interrupt() - * - * Creates a USB host controller bus structure with the specified - * usb_operations and initializes all the necessary internal objects. - * - * If no memory is available, NULL is returned. - * - * The caller should call usb_put_bus() when it is finished with the structure. - */ -struct usb_bus *usb_alloc_bus (struct usb_operations *op) -{ - struct usb_bus *bus; - - bus = kzalloc (sizeof *bus, GFP_KERNEL); - if (!bus) - return NULL; - usb_bus_init (bus); - bus->op = op; - return bus; } /*-------------------------------------------------------------------------*/ @@ -1112,10 +1050,10 @@ * expects usb_submit_urb() to have sanity checked and conditioned all * inputs in the urb */ -static int hcd_submit_urb (struct urb *urb, gfp_t mem_flags) +int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags) { int status; - struct usb_hcd *hcd = urb->dev->bus->hcpriv; + struct usb_hcd *hcd = bus_to_hcd(urb->dev->bus); struct usb_host_endpoint *ep; unsigned long flags; @@ -1186,7 +1124,7 @@ /* lower level hcd code should use *_dma exclusively, * unless it uses pio or talks to another transport. */ - if (hcd->self.controller->dma_mask) { + if (hcd->self.uses_dma) { if (usb_pipecontrol (urb->pipe) && !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP)) urb->setup_dma = dma_map_single ( @@ -1221,9 +1159,10 @@ /*-------------------------------------------------------------------------*/ /* called in any context */ -static int hcd_get_frame_number (struct usb_device *udev) +int usb_hcd_get_frame_number (struct usb_device *udev) { - struct usb_hcd *hcd = (struct usb_hcd *)udev->bus->hcpriv; + struct usb_hcd *hcd = bus_to_hcd(udev->bus); + if (!HC_IS_RUNNING (hcd->state)) return -ESHUTDOWN; return hcd->driver->get_frame_number (hcd); @@ -1263,7 +1202,7 @@ * caller guarantees urb won't be recycled till both unlink() * and the urb's completion function return */ -static int hcd_unlink_urb (struct urb *urb, int status) +int usb_hcd_unlink_urb (struct urb *urb, int status) { struct usb_host_endpoint *ep; struct usb_hcd *hcd = NULL; @@ -1296,7 +1235,7 @@ spin_lock (&hcd_data_lock); sys = &urb->dev->dev; - hcd = urb->dev->bus->hcpriv; + hcd = bus_to_hcd(urb->dev->bus); if (hcd == NULL) { retval = -ENODEV; goto done; @@ -1354,41 +1293,33 @@ /*-------------------------------------------------------------------------*/ /* disables the endpoint: cancels any pending urbs, then synchronizes with - * the hcd to make sure all endpoint state is gone from hardware. use for + * the hcd to make sure all endpoint state is gone from hardware, and then + * waits until the endpoint's queue is completely drained. use for * set_configuration, set_interface, driver removal, physical disconnect. * * example: a qh stored in ep->hcpriv, holding state related to endpoint * type, maxpacket size, toggle, halt status, and scheduling. */ -static void -hcd_endpoint_disable (struct usb_device *udev, struct usb_host_endpoint *ep) +void usb_hcd_endpoint_disable (struct usb_device *udev, + struct usb_host_endpoint *ep) { struct usb_hcd *hcd; struct urb *urb; - hcd = udev->bus->hcpriv; + hcd = bus_to_hcd(udev->bus); WARN_ON (!HC_IS_RUNNING (hcd->state) && hcd->state != HC_STATE_HALT && udev->state != USB_STATE_NOTATTACHED); local_irq_disable (); - /* FIXME move most of this into message.c as part of its - * endpoint disable logic - */ - /* ep is already gone from udev->ep_{in,out}[]; no more submits */ rescan: spin_lock (&hcd_data_lock); list_for_each_entry (urb, &ep->urb_list, urb_list) { int tmp; - /* another cpu may be in hcd, spinning on hcd_data_lock - * to giveback() this urb. the races here should be - * small, but a full fix needs a new "can't submit" - * urb state. - * FIXME urb->reject should allow that... - */ + /* the urb may already have been unlinked */ if (urb->status != -EINPROGRESS) continue; usb_get_urb (urb); @@ -1430,6 +1361,30 @@ might_sleep (); if (hcd->driver->endpoint_disable) hcd->driver->endpoint_disable (hcd, ep); + + /* Wait until the endpoint queue is completely empty. Most HCDs + * will have done this already in their endpoint_disable method, + * but some might not. And there could be root-hub control URBs + * still pending since they aren't affected by the HCDs' + * endpoint_disable methods. + */ + while (!list_empty (&ep->urb_list)) { + spin_lock_irq (&hcd_data_lock); + + /* The list may have changed while we acquired the spinlock */ + urb = NULL; + if (!list_empty (&ep->urb_list)) { + urb = list_entry (ep->urb_list.prev, struct urb, + urb_list); + usb_get_urb (urb); + } + spin_unlock_irq (&hcd_data_lock); + + if (urb) { + usb_kill_urb (urb); + usb_put_urb (urb); + } + } } /*-------------------------------------------------------------------------*/ @@ -1476,50 +1431,6 @@ return status; } -/* - * usb_hcd_suspend_root_hub - HCD autosuspends downstream ports - * @hcd: host controller for this root hub - * - * This call arranges that usb_hcd_resume_root_hub() is safe to call later; - * that the HCD's root hub polling is deactivated; and that the root's hub - * driver is suspended. HCDs may call this to autosuspend when their root - * hub's downstream ports are all inactive: unpowered, disconnected, - * disabled, or suspended. - * - * The HCD will autoresume on device connect change detection (using SRP - * or a D+/D- pullup). The HCD also autoresumes on remote wakeup signaling - * from any ports that are suspended (if that is enabled). In most cases, - * overcurrent signaling (on powered ports) will also start autoresume. - * - * Always called with IRQs blocked. - */ -void usb_hcd_suspend_root_hub (struct usb_hcd *hcd) -{ - struct urb *urb; - - spin_lock (&hcd_root_hub_lock); - usb_suspend_root_hub (hcd->self.root_hub); - - /* force status urb to complete/unlink while suspended */ - if (hcd->status_urb) { - urb = hcd->status_urb; - urb->status = -ECONNRESET; - urb->hcpriv = NULL; - urb->actual_length = 0; - - del_timer (&hcd->rh_timer); - hcd->poll_pending = 0; - hcd->status_urb = NULL; - } else - urb = NULL; - spin_unlock (&hcd_root_hub_lock); - hcd->state = HC_STATE_SUSPENDED; - - if (urb) - usb_hcd_giveback_urb (hcd, urb, NULL); -} -EXPORT_SYMBOL_GPL(usb_hcd_suspend_root_hub); - /** * usb_hcd_resume_root_hub - called by HCD to resume its root hub * @hcd: host controller for this root hub @@ -1583,20 +1494,6 @@ /*-------------------------------------------------------------------------*/ -/* - * usb_hcd_operations - adapts usb_bus framework to HCD framework (bus glue) - */ -static struct usb_operations usb_hcd_operations = { - .get_frame_number = hcd_get_frame_number, - .submit_urb = hcd_submit_urb, - .unlink_urb = hcd_unlink_urb, - .buffer_alloc = hcd_buffer_alloc, - .buffer_free = hcd_buffer_free, - .disable = hcd_endpoint_disable, -}; - -/*-------------------------------------------------------------------------*/ - /** * usb_hcd_giveback_urb - return URB from HCD to device driver * @hcd: host controller returning the URB @@ -1617,8 +1514,9 @@ at_root_hub = (urb->dev == hcd->self.root_hub); urb_unlink (urb); - /* lower level hcd code should use *_dma exclusively */ - if (hcd->self.controller->dma_mask && !at_root_hub) { + /* lower level hcd code should use *_dma exclusively if the + * host controller does DMA */ + if (hcd->self.uses_dma && !at_root_hub) { if (usb_pipecontrol (urb->pipe) && !(urb->transfer_flags & URB_NO_SETUP_DMA_MAP)) dma_unmap_single (hcd->self.controller, urb->setup_dma, @@ -1704,14 +1602,6 @@ /*-------------------------------------------------------------------------*/ -static void hcd_release (struct usb_bus *bus) -{ - struct usb_hcd *hcd; - - hcd = container_of(bus, struct usb_hcd, self); - kfree(hcd); -} - /** * usb_create_hcd - create and initialize an HCD structure * @driver: HC driver that will use this hcd @@ -1736,13 +1626,12 @@ return NULL; } dev_set_drvdata(dev, hcd); + kref_init(&hcd->kref); usb_bus_init(&hcd->self); - hcd->self.op = &usb_hcd_operations; - hcd->self.hcpriv = hcd; - hcd->self.release = &hcd_release; hcd->self.controller = dev; hcd->self.bus_name = bus_name; + hcd->self.uses_dma = (dev->dma_mask != NULL); init_timer(&hcd->rh_timer); hcd->rh_timer.function = rh_timer_func; @@ -1756,10 +1645,25 @@ } EXPORT_SYMBOL (usb_create_hcd); +static void hcd_release (struct kref *kref) +{ + struct usb_hcd *hcd = container_of (kref, struct usb_hcd, kref); + + kfree(hcd); +} + +struct usb_hcd *usb_get_hcd (struct usb_hcd *hcd) +{ + if (hcd) + kref_get (&hcd->kref); + return hcd; +} +EXPORT_SYMBOL (usb_get_hcd); + void usb_put_hcd (struct usb_hcd *hcd) { - dev_set_drvdata(hcd->self.controller, NULL); - usb_bus_put(&hcd->self); + if (hcd) + kref_put (&hcd->kref, hcd_release); } EXPORT_SYMBOL (usb_put_hcd); @@ -1915,6 +1819,16 @@ } EXPORT_SYMBOL (usb_remove_hcd); +void +usb_hcd_platform_shutdown(struct platform_device* dev) +{ + struct usb_hcd *hcd = platform_get_drvdata(dev); + + if (hcd->driver->shutdown) + hcd->driver->shutdown(hcd); +} +EXPORT_SYMBOL (usb_hcd_platform_shutdown); + /*-------------------------------------------------------------------------*/ #if defined(CONFIG_USB_MON)
diff --git a/drivers/usb/core/hcd.h b/drivers/usb/core/hcd.h index 7022aaf..676877c 100644 --- a/drivers/usb/core/hcd.h +++ b/drivers/usb/core/hcd.h
@@ -55,12 +55,13 @@ /*-------------------------------------------------------------------------*/ -struct usb_hcd { /* usb_bus.hcpriv points to this */ +struct usb_hcd { /* * housekeeping */ struct usb_bus self; /* hcd is-a bus */ + struct kref kref; /* reference counter */ const char *product_desc; /* product/vendor string */ char irq_descr[24]; /* driver + bus # */ @@ -85,6 +86,7 @@ unsigned uses_new_polling:1; unsigned poll_rh:1; /* poll for rh status? */ unsigned poll_pending:1; /* status has changed? */ + unsigned wireless:1; /* Wireless USB HCD */ int irq; /* irq allocated */ void __iomem *regs; /* device memory/io */ @@ -128,8 +130,10 @@ return &hcd->self; } - -// urb.hcpriv is really hardware-specific +static inline struct usb_hcd *bus_to_hcd (struct usb_bus *bus) +{ + return container_of(bus, struct usb_hcd, self); +} struct hcd_timeout { /* timeouts we allocate */ struct list_head timeout_list; @@ -138,28 +142,6 @@ /*-------------------------------------------------------------------------*/ -/* - * FIXME usb_operations should vanish or become hc_driver, - * when usb_bus and usb_hcd become the same thing. - */ - -struct usb_operations { - int (*get_frame_number) (struct usb_device *usb_dev); - int (*submit_urb) (struct urb *urb, gfp_t mem_flags); - int (*unlink_urb) (struct urb *urb, int status); - - /* allocate dma-consistent buffer for URB_DMA_NOMAPPING */ - void *(*buffer_alloc)(struct usb_bus *bus, size_t size, - gfp_t mem_flags, - dma_addr_t *dma); - void (*buffer_free)(struct usb_bus *bus, size_t size, - void *addr, dma_addr_t dma); - - void (*disable)(struct usb_device *udev, - struct usb_host_endpoint *ep); -}; - -/* each driver provides one of these, and hardware init support */ struct pt_regs; @@ -192,6 +174,9 @@ /* cleanly make HCD stop writing memory and doing I/O */ void (*stop) (struct usb_hcd *hcd); + /* shutdown HCD */ + void (*shutdown) (struct usb_hcd *hcd); + /* return current frame number */ int (*get_frame_number) (struct usb_hcd *hcd); @@ -218,15 +203,25 @@ /* Needed only if port-change IRQs are level-triggered */ }; -extern void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb, struct pt_regs *regs); +extern int usb_hcd_submit_urb (struct urb *urb, gfp_t mem_flags); +extern int usb_hcd_unlink_urb (struct urb *urb, int status); +extern void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb, + struct pt_regs *regs); +extern void usb_hcd_endpoint_disable (struct usb_device *udev, + struct usb_host_endpoint *ep); +extern int usb_hcd_get_frame_number (struct usb_device *udev); extern struct usb_hcd *usb_create_hcd (const struct hc_driver *driver, struct device *dev, char *bus_name); +extern struct usb_hcd *usb_get_hcd (struct usb_hcd *hcd); extern void usb_put_hcd (struct usb_hcd *hcd); extern int usb_add_hcd(struct usb_hcd *hcd, unsigned int irqnum, unsigned long irqflags); extern void usb_remove_hcd(struct usb_hcd *hcd); +struct platform_device; +extern void usb_hcd_platform_shutdown(struct platform_device* dev); + #ifdef CONFIG_PCI struct pci_dev; struct pci_device_id; @@ -239,6 +234,8 @@ extern int usb_hcd_pci_resume (struct pci_dev *dev); #endif /* CONFIG_PM */ +extern void usb_hcd_pci_shutdown (struct pci_dev *dev); + #endif /* CONFIG_PCI */ /* pci-ish (pdev null is ok) buffer alloc/mapping support */ @@ -352,8 +349,6 @@ /*-------------------------------------------------------------------------*/ -extern struct usb_bus *usb_alloc_bus (struct usb_operations *); - extern void usb_set_device_state(struct usb_device *udev, enum usb_device_state new_state); @@ -365,9 +360,6 @@ extern struct mutex usb_bus_list_lock; extern wait_queue_head_t usb_kill_urb_queue; -extern struct usb_bus *usb_bus_get (struct usb_bus *bus); -extern void usb_bus_put (struct usb_bus *bus); - extern void usb_enable_root_hub_irq (struct usb_bus *bus); extern int usb_find_interface_driver (struct usb_device *dev, @@ -376,17 +368,11 @@ #define usb_endpoint_out(ep_dir) (!((ep_dir) & USB_DIR_IN)) #ifdef CONFIG_PM -extern void usb_hcd_suspend_root_hub (struct usb_hcd *hcd); extern void usb_hcd_resume_root_hub (struct usb_hcd *hcd); extern void usb_root_hub_lost_power (struct usb_device *rhdev); extern int hcd_bus_suspend (struct usb_bus *bus); extern int hcd_bus_resume (struct usb_bus *bus); #else -static inline void usb_hcd_suspend_root_hub(struct usb_hcd *hcd) -{ - return; -} - static inline void usb_hcd_resume_root_hub(struct usb_hcd *hcd) { return;
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 26c8cb5..2a8cb3c 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c
@@ -293,7 +293,7 @@ /* completion function, fires on port status changes and various faults */ static void hub_irq(struct urb *urb, struct pt_regs *regs) { - struct usb_hub *hub = (struct usb_hub *)urb->context; + struct usb_hub *hub = urb->context; int status; int i; unsigned long bits; @@ -311,7 +311,7 @@ goto resubmit; hub->error = urb->status; /* FALL THROUGH */ - + /* let khubd handle things */ case 0: /* we got data: port status changed */ bits = 0; @@ -452,18 +452,14 @@ msleep(max(pgood_delay, (unsigned) 100)); } -static inline void __hub_quiesce(struct usb_hub *hub) +static void hub_quiesce(struct usb_hub *hub) { /* (nonblocking) khubd and related activity won't re-trigger */ hub->quiescing = 1; hub->activating = 0; hub->resume_root_hub = 0; -} -static void hub_quiesce(struct usb_hub *hub) -{ /* (blocking) stop khubd and related activity */ - __hub_quiesce(hub); usb_kill_urb(hub->urb); if (hub->has_indicators) cancel_delayed_work(&hub->leds); @@ -868,13 +864,8 @@ endpoint = &desc->endpoint[0].desc; - /* Output endpoint? Curiouser and curiouser.. */ - if (!(endpoint->bEndpointAddress & USB_DIR_IN)) - goto descriptor_error; - - /* If it's not an interrupt endpoint, we'd better punt! */ - if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) - != USB_ENDPOINT_XFER_INT) + /* If it's not an interrupt in endpoint, we'd better punt! */ + if (!usb_endpoint_is_int_in(endpoint)) goto descriptor_error; /* We found a hub */ @@ -1022,26 +1013,29 @@ if (udev->state == USB_STATE_NOTATTACHED) ; /* do nothing */ else if (new_state != USB_STATE_NOTATTACHED) { - udev->state = new_state; /* root hub wakeup capabilities are managed out-of-band * and may involve silicon errata ... ignore them here. */ if (udev->parent) { - if (new_state == USB_STATE_CONFIGURED) + if (udev->state == USB_STATE_SUSPENDED + || new_state == USB_STATE_SUSPENDED) + ; /* No change to wakeup settings */ + else if (new_state == USB_STATE_CONFIGURED) device_init_wakeup(&udev->dev, (udev->actconfig->desc.bmAttributes & USB_CONFIG_ATT_WAKEUP)); - else if (new_state != USB_STATE_SUSPENDED) + else device_init_wakeup(&udev->dev, 0); } + udev->state = new_state; } else recursively_mark_NOTATTACHED(udev); spin_unlock_irqrestore(&device_state_lock, flags); } -#ifdef CONFIG_PM +#ifdef CONFIG_PM /** * usb_root_hub_lost_power - called by HCD if the root hub lost Vbus power @@ -1059,6 +1053,12 @@ unsigned long flags; dev_warn(&rhdev->dev, "root hub lost power or was reset\n"); + + /* Make sure no potential wakeup events get lost, + * by forcing the root hub to be resumed. + */ + rhdev->dev.power.prev_state.event = PM_EVENT_ON; + spin_lock_irqsave(&device_state_lock, flags); hub = hdev_to_hub(rhdev); for (port1 = 1; port1 <= rhdev->maxchild; ++port1) { @@ -1072,7 +1072,7 @@ } EXPORT_SYMBOL_GPL(usb_root_hub_lost_power); -#endif +#endif /* CONFIG_PM */ static void choose_address(struct usb_device *udev) { @@ -1148,144 +1148,28 @@ * cleaning up all state associated with the current configuration * so that the hardware is now fully quiesced. */ + dev_dbg (&udev->dev, "unregistering device\n"); usb_disable_device(udev, 0); - usb_notify_remove_device(udev); + usb_unlock_device(udev); - /* Free the device number, remove the /proc/bus/usb entry and - * the sysfs attributes, and delete the parent's children[] + /* Unregister the device. The device driver is responsible + * for removing the device files from usbfs and sysfs and for + * de-configuring the device. + */ + device_del(&udev->dev); + + /* Free the device number and delete the parent's children[] * (or root_hub) pointer. */ - dev_dbg (&udev->dev, "unregistering device\n"); release_address(udev); - usb_remove_sysfs_dev_files(udev); /* Avoid races with recursively_mark_NOTATTACHED() */ spin_lock_irq(&device_state_lock); *pdev = NULL; spin_unlock_irq(&device_state_lock); - usb_unlock_device(udev); - - device_unregister(&udev->dev); -} - -static inline const char *plural(int n) -{ - return (n == 1 ? "" : "s"); -} - -static int choose_configuration(struct usb_device *udev) -{ - int i; - int num_configs; - int insufficient_power = 0; - struct usb_host_config *c, *best; - - best = NULL; - c = udev->config; - num_configs = udev->descriptor.bNumConfigurations; - for (i = 0; i < num_configs; (i++, c++)) { - struct usb_interface_descriptor *desc = NULL; - - /* It's possible that a config has no interfaces! */ - if (c->desc.bNumInterfaces > 0) - desc = &c->intf_cache[0]->altsetting->desc; - - /* - * HP's USB bus-powered keyboard has only one configuration - * and it claims to be self-powered; other devices may have - * similar errors in their descriptors. If the next test - * were allowed to execute, such configurations would always - * be rejected and the devices would not work as expected. - * In the meantime, we run the risk of selecting a config - * that requires external power at a time when that power - * isn't available. It seems to be the lesser of two evils. - * - * Bugzilla #6448 reports a device that appears to crash - * when it receives a GET_DEVICE_STATUS request! We don't - * have any other way to tell whether a device is self-powered, - * but since we don't use that information anywhere but here, - * the call has been removed. - * - * Maybe the GET_DEVICE_STATUS call and the test below can - * be reinstated when device firmwares become more reliable. - * Don't hold your breath. - */ -#if 0 - /* Rule out self-powered configs for a bus-powered device */ - if (bus_powered && (c->desc.bmAttributes & - USB_CONFIG_ATT_SELFPOWER)) - continue; -#endif - - /* - * The next test may not be as effective as it should be. - * Some hubs have errors in their descriptor, claiming - * to be self-powered when they are really bus-powered. - * We will overestimate the amount of current such hubs - * make available for each port. - * - * This is a fairly benign sort of failure. It won't - * cause us to reject configurations that we should have - * accepted. - */ - - /* Rule out configs that draw too much bus current */ - if (c->desc.bMaxPower * 2 > udev->bus_mA) { - insufficient_power++; - continue; - } - - /* If the first config's first interface is COMM/2/0xff - * (MSFT RNDIS), rule it out unless Linux has host-side - * RNDIS support. */ - if (i == 0 && desc - && desc->bInterfaceClass == USB_CLASS_COMM - && desc->bInterfaceSubClass == 2 - && desc->bInterfaceProtocol == 0xff) { -#ifndef CONFIG_USB_NET_RNDIS_HOST - continue; -#else - best = c; -#endif - } - - /* From the remaining configs, choose the first one whose - * first interface is for a non-vendor-specific class. - * Reason: Linux is more likely to have a class driver - * than a vendor-specific driver. */ - else if (udev->descriptor.bDeviceClass != - USB_CLASS_VENDOR_SPEC && - (!desc || desc->bInterfaceClass != - USB_CLASS_VENDOR_SPEC)) { - best = c; - break; - } - - /* If all the remaining configs are vendor-specific, - * choose the first one. */ - else if (!best) - best = c; - } - - if (insufficient_power > 0) - dev_info(&udev->dev, "rejected %d configuration%s " - "due to insufficient available bus power\n", - insufficient_power, plural(insufficient_power)); - - if (best) { - i = best->desc.bConfigurationValue; - dev_info(&udev->dev, - "configuration #%d chosen from %d choice%s\n", - i, num_configs, plural(num_configs)); - } else { - i = -1; - dev_warn(&udev->dev, - "no configuration chosen from %d choice%s\n", - num_configs, plural(num_configs)); - } - return i; + put_device(&udev->dev); } #ifdef DEBUG @@ -1328,7 +1212,6 @@ int usb_new_device(struct usb_device *udev) { int err; - int c; err = usb_get_configuration(udev); if (err < 0) { @@ -1371,8 +1254,7 @@ USB_DT_OTG, (void **) &desc) == 0) { if (desc->bmAttributes & USB_OTG_HNP) { unsigned port1 = udev->portnum; - struct usb_device *root = udev->parent; - + dev_info(&udev->dev, "Dual-Role OTG device on %sHNP port\n", (port1 == bus->otg_port) @@ -1407,9 +1289,9 @@ * (Includes HNP test device.) */ if (udev->bus->b_hnp_enable || udev->bus->is_b_host) { - static int __usb_suspend_device(struct usb_device *, + static int __usb_port_suspend(struct usb_device *, int port1); - err = __usb_suspend_device(udev, udev->bus->otg_port); + err = __usb_port_suspend(udev, udev->bus->otg_port); if (err < 0) dev_dbg(&udev->dev, "HNP fail, %d\n", err); } @@ -1418,34 +1300,15 @@ } #endif - /* put device-specific files into sysfs */ + /* Register the device. The device driver is responsible + * for adding the device files to usbfs and sysfs and for + * configuring the device. + */ err = device_add (&udev->dev); if (err) { dev_err(&udev->dev, "can't device_add, error %d\n", err); goto fail; } - usb_create_sysfs_dev_files (udev); - - usb_lock_device(udev); - - /* choose and set the configuration. that registers the interfaces - * with the driver core, and lets usb device drivers bind to them. - */ - c = choose_configuration(udev); - if (c >= 0) { - err = usb_set_configuration(udev, c); - if (err) { - dev_err(&udev->dev, "can't set config #%d, error %d\n", - c, err); - /* This need not be fatal. The user can try to - * set other configurations. */ - } - } - - /* USB device state == configured ... usable */ - usb_notify_add_device(udev); - - usb_unlock_device(udev); return 0; @@ -1472,6 +1335,18 @@ return ret; } + +/* Returns 1 if @hub is a WUSB root hub, 0 otherwise */ +static unsigned hub_is_wusb(struct usb_hub *hub) +{ + struct usb_hcd *hcd; + if (hub->hdev->parent != NULL) /* not a root hub? */ + return 0; + hcd = container_of(hub->hdev->bus, struct usb_hcd, self); + return hcd->wireless; +} + + #define PORT_RESET_TRIES 5 #define SET_ADDRESS_TRIES 2 #define GET_DESCRIPTOR_TRIES 2 @@ -1512,7 +1387,9 @@ /* if we`ve finished resetting, then break out of the loop */ if (!(portstatus & USB_PORT_STAT_RESET) && (portstatus & USB_PORT_STAT_ENABLE)) { - if (portstatus & USB_PORT_STAT_HIGH_SPEED) + if (hub_is_wusb(hub)) + udev->speed = USB_SPEED_VARIABLE; + else if (portstatus & USB_PORT_STAT_HIGH_SPEED) udev->speed = USB_SPEED_HIGH; else if (portstatus & USB_PORT_STAT_LOW_SPEED) udev->speed = USB_SPEED_LOW; @@ -1607,6 +1484,7 @@ kick_khubd(hub); } +#ifdef CONFIG_PM #ifdef CONFIG_USB_SUSPEND @@ -1633,7 +1511,7 @@ * NOTE: OTG devices may issue remote wakeup (or SRP) even when * we don't explicitly enable it here. */ - if (device_may_wakeup(&udev->dev)) { + if (udev->do_remote_wakeup) { status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), USB_REQ_SET_FEATURE, USB_RECIP_DEVICE, USB_DEVICE_REMOTE_WAKEUP, 0, @@ -1659,7 +1537,8 @@ USB_CTRL_SET_TIMEOUT); } else { /* device has up to 10 msec to fully suspend */ - dev_dbg(&udev->dev, "usb suspend\n"); + dev_dbg(&udev->dev, "usb %ssuspend\n", + udev->auto_pm ? "auto-" : ""); usb_set_device_state(udev, USB_STATE_SUSPENDED); msleep(10); } @@ -1684,7 +1563,7 @@ * the root hub for their bus goes into global suspend ... so we don't * (falsely) update the device power state to say it suspended. */ -static int __usb_suspend_device (struct usb_device *udev, int port1) +static int __usb_port_suspend (struct usb_device *udev, int port1) { int status = 0; @@ -1692,49 +1571,29 @@ if (port1 < 0) return port1; - if (udev->state == USB_STATE_SUSPENDED - || udev->state == USB_STATE_NOTATTACHED) { - return 0; - } - - /* all interfaces must already be suspended */ - if (udev->actconfig) { - int i; - - for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { - struct usb_interface *intf; - - intf = udev->actconfig->interface[i]; - if (is_active(intf)) { - dev_dbg(&intf->dev, "nyet suspended\n"); - return -EBUSY; - } - } - } - - /* we only change a device's upstream USB link. - * root hubs have no upstream USB link. + /* we change the device's upstream USB link, + * but root hubs have no upstream USB link. */ if (udev->parent) status = hub_port_suspend(hdev_to_hub(udev->parent), port1, udev); - - if (status == 0) - udev->dev.power.power_state = PMSG_SUSPEND; + else { + dev_dbg(&udev->dev, "usb %ssuspend\n", + udev->auto_pm ? "auto-" : ""); + usb_set_device_state(udev, USB_STATE_SUSPENDED); + } return status; } -#endif - /* - * usb_suspend_device - suspend a usb device + * usb_port_suspend - suspend a usb device's upstream port * @udev: device that's no longer in active use * Context: must be able to sleep; device not locked; pm locks held * * Suspends a USB device that isn't in active use, conserving power. * Devices may wake out of a suspend, if anything important happens, * using the remote wakeup mechanism. They may also be taken out of - * suspend by the host, using usb_resume_device(). It's also routine + * suspend by the host, using usb_port_resume(). It's also routine * to disconnect devices while they are suspended. * * This only affects the USB hardware for a device; its interfaces @@ -1746,17 +1605,9 @@ * * Returns 0 on success, else negative errno. */ -int usb_suspend_device(struct usb_device *udev) +int usb_port_suspend(struct usb_device *udev) { -#ifdef CONFIG_USB_SUSPEND - if (udev->state == USB_STATE_NOTATTACHED) - return -ENODEV; - return __usb_suspend_device(udev, udev->portnum); -#else - /* NOTE: udev->state unchanged, it's not lying ... */ - udev->dev.power.power_state = PMSG_SUSPEND; - return 0; -#endif + return __usb_port_suspend(udev, udev->portnum); } /* @@ -1767,7 +1618,7 @@ * resume (by host) or remote wakeup (by device) ... now see what changed * in the tree that's rooted at this device. */ -static int finish_device_resume(struct usb_device *udev) +static int finish_port_resume(struct usb_device *udev) { int status; u16 devstatus; @@ -1783,7 +1634,6 @@ usb_set_device_state(udev, udev->actconfig ? USB_STATE_CONFIGURED : USB_STATE_ADDRESS); - udev->dev.power.power_state = PMSG_ON; /* 10.5.4.5 says be sure devices in the tree are still there. * For now let's assume the device didn't go crazy on resume, @@ -1798,9 +1648,6 @@ "gone after usb resume? status %d\n", status); else if (udev->actconfig) { - unsigned i; - int (*resume)(struct device *); - le16_to_cpus(&devstatus); if ((devstatus & (1 << USB_DEVICE_REMOTE_WAKEUP)) && udev->parent) { @@ -1811,24 +1658,9 @@ USB_DEVICE_REMOTE_WAKEUP, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); - if (status) { + if (status) dev_dbg(&udev->dev, "disable remote " "wakeup, status %d\n", status); - status = 0; - } - } - - /* resume interface drivers; if this is a hub, it - * may have a child resume event to deal with soon - */ - resume = udev->dev.bus->resume; - for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { - struct device *dev = - &udev->actconfig->interface[i]->dev; - - down(&dev->sem); - (void) resume(dev); - up(&dev->sem); } status = 0; @@ -1839,8 +1671,6 @@ return status; } -#ifdef CONFIG_USB_SUSPEND - static int hub_port_resume(struct usb_hub *hub, int port1, struct usb_device *udev) { @@ -1848,6 +1678,8 @@ // dev_dbg(hub->intfdev, "resume port %d\n", port1); + set_bit(port1, hub->busy_bits); + /* see 7.1.7.7; affects power usage, but not budgeting */ status = clear_port_feature(hub->hdev, port1, USB_PORT_FEAT_SUSPEND); @@ -1861,7 +1693,8 @@ /* drive resume for at least 20 msec */ if (udev) - dev_dbg(&udev->dev, "RESUME\n"); + dev_dbg(&udev->dev, "usb %sresume\n", + udev->auto_pm ? "auto-" : ""); msleep(25); #define LIVE_FLAGS ( USB_PORT_STAT_POWER \ @@ -1891,19 +1724,21 @@ /* TRSMRCY = 10 msec */ msleep(10); if (udev) - status = finish_device_resume(udev); + status = finish_port_resume(udev); } } if (status < 0) hub_port_logical_disconnect(hub, port1); + clear_bit(port1, hub->busy_bits); + if (!hub->hdev->parent && !hub->busy_bits[0]) + usb_enable_root_hub_irq(hub->hdev->bus); + return status; } -#endif - /* - * usb_resume_device - re-activate a suspended usb device + * usb_port_resume - re-activate a suspended usb device's upstream port * @udev: device to re-activate * Context: must be able to sleep; device not locked; pm locks held * @@ -1915,36 +1750,24 @@ * * Returns 0 on success, else negative errno. */ -int usb_resume_device(struct usb_device *udev) +int usb_port_resume(struct usb_device *udev) { int status; - if (udev->state == USB_STATE_NOTATTACHED) - return -ENODEV; - - /* selective resume of one downstream hub-to-device port */ + /* we change the device's upstream USB link, + * but root hubs have no upstream USB link. + */ if (udev->parent) { -#ifdef CONFIG_USB_SUSPEND - if (udev->state == USB_STATE_SUSPENDED) { - // NOTE swsusp may bork us, device state being wrong... - // NOTE this fails if parent is also suspended... - status = hub_port_resume(hdev_to_hub(udev->parent), - udev->portnum, udev); - } else -#endif - status = 0; - } else - status = finish_device_resume(udev); - if (status < 0) - dev_dbg(&udev->dev, "can't resume, status %d\n", - status); - - /* rebind drivers that had no suspend() */ - if (status == 0) { - usb_unlock_device(udev); - bus_rescan_devices(&usb_bus_type); - usb_lock_device(udev); + // NOTE this fails if parent is also suspended... + status = hub_port_resume(hdev_to_hub(udev->parent), + udev->portnum, udev); + } else { + dev_dbg(&udev->dev, "usb %sresume\n", + udev->auto_pm ? "auto-" : ""); + status = finish_port_resume(udev); } + if (status < 0) + dev_dbg(&udev->dev, "can't resume, status %d\n", status); return status; } @@ -1952,23 +1775,60 @@ { int status = 0; -#ifdef CONFIG_USB_SUSPEND + /* All this just to avoid sending a port-resume message + * to the parent hub! */ - /* don't repeat RESUME sequence if this device - * was already woken up by some other task - */ usb_lock_device(udev); + mutex_lock_nested(&udev->pm_mutex, udev->level); if (udev->state == USB_STATE_SUSPENDED) { - dev_dbg(&udev->dev, "RESUME (wakeup)\n"); + dev_dbg(&udev->dev, "usb %sresume\n", "wakeup-"); /* TRSMRCY = 10 msec */ msleep(10); - status = finish_device_resume(udev); + status = finish_port_resume(udev); + if (status == 0) + udev->dev.power.power_state.event = PM_EVENT_ON; } + mutex_unlock(&udev->pm_mutex); + + if (status == 0) + usb_autoresume_device(udev, 0); usb_unlock_device(udev); -#endif return status; } +#else /* CONFIG_USB_SUSPEND */ + +/* When CONFIG_USB_SUSPEND isn't set, we never suspend or resume any ports. */ + +int usb_port_suspend(struct usb_device *udev) +{ + return 0; +} + +static inline int +finish_port_resume(struct usb_device *udev) +{ + return 0; +} + +static inline int +hub_port_resume(struct usb_hub *hub, int port1, struct usb_device *udev) +{ + return 0; +} + +int usb_port_resume(struct usb_device *udev) +{ + return 0; +} + +static inline int remote_wakeup(struct usb_device *udev) +{ + return 0; +} + +#endif + static int hub_suspend(struct usb_interface *intf, pm_message_t msg) { struct usb_hub *hub = usb_get_intfdata (intf); @@ -1980,13 +1840,17 @@ struct usb_device *udev; udev = hdev->children [port1-1]; - if (udev && (udev->dev.power.power_state.event - == PM_EVENT_ON + if (udev && msg.event == PM_EVENT_SUSPEND && #ifdef CONFIG_USB_SUSPEND - || udev->state != USB_STATE_SUSPENDED + udev->state != USB_STATE_SUSPENDED +#else + udev->dev.power.power_state.event + == PM_EVENT_ON #endif - )) { - dev_dbg(&intf->dev, "port %d nyet suspended\n", port1); + ) { + if (!hdev->auto_pm) + dev_dbg(&intf->dev, "port %d nyet suspended\n", + port1); return -EBUSY; } } @@ -2035,66 +1899,22 @@ } } + /* tell khubd to look for changes on this hub */ hub_activate(hub); - - /* REVISIT: this recursion probably shouldn't exist. Remove - * this code sometime, after retesting with different root and - * external hubs. - */ -#ifdef CONFIG_USB_SUSPEND - { - unsigned port1; - - for (port1 = 1; port1 <= hdev->maxchild; port1++) { - struct usb_device *udev; - u16 portstat, portchange; - - udev = hdev->children [port1-1]; - status = hub_port_status(hub, port1, &portstat, &portchange); - if (status == 0) { - if (portchange & USB_PORT_STAT_C_SUSPEND) { - clear_port_feature(hdev, port1, - USB_PORT_FEAT_C_SUSPEND); - portchange &= ~USB_PORT_STAT_C_SUSPEND; - } - - /* let khubd handle disconnects etc */ - if (portchange) - continue; - } - - if (!udev || status < 0) - continue; - usb_lock_device(udev); - if (portstat & USB_PORT_STAT_SUSPEND) - status = hub_port_resume(hub, port1, udev); - else { - status = finish_device_resume(udev); - if (status < 0) { - dev_dbg(&intf->dev, "resume port %d --> %d\n", - port1, status); - hub_port_logical_disconnect(hub, port1); - } - } - usb_unlock_device(udev); - } - } -#endif return 0; } -void usb_suspend_root_hub(struct usb_device *hdev) -{ - struct usb_hub *hub = hdev_to_hub(hdev); +#else /* CONFIG_PM */ - /* This also makes any led blinker stop retriggering. We're called - * from irq, so the blinker might still be scheduled. Caller promises - * that the root hub status URB will be canceled. - */ - __hub_quiesce(hub); - mark_quiesced(to_usb_interface(hub->intfdev)); +static inline int remote_wakeup(struct usb_device *udev) +{ + return 0; } +#define hub_suspend NULL +#define hub_resume NULL +#endif + void usb_resume_root_hub(struct usb_device *hdev) { struct usb_hub *hub = hdev_to_hub(hdev); @@ -2214,6 +2034,7 @@ int i, j, retval; unsigned delay = HUB_SHORT_RESET_TIME; enum usb_device_speed oldspeed = udev->speed; + char *speed, *type; /* root hub ports have a slightly longer reset period * (from USB 2.0 spec, section 7.1.7.5) @@ -2246,8 +2067,13 @@ /* USB 2.0 section 5.5.3 talks about ep0 maxpacket ... * it's fixed size except for full speed devices. + * For Wireless USB devices, ep0 max packet is always 512 (tho + * reported as 0xff in the device descriptor). WUSB1.0[4.8.1]. */ switch (udev->speed) { + case USB_SPEED_VARIABLE: /* fixed at 512 */ + udev->ep0.desc.wMaxPacketSize = __constant_cpu_to_le16(512); + break; case USB_SPEED_HIGH: /* fixed at 64 */ udev->ep0.desc.wMaxPacketSize = __constant_cpu_to_le16(64); break; @@ -2265,17 +2091,21 @@ goto fail; } + type = ""; + switch (udev->speed) { + case USB_SPEED_LOW: speed = "low"; break; + case USB_SPEED_FULL: speed = "full"; break; + case USB_SPEED_HIGH: speed = "high"; break; + case USB_SPEED_VARIABLE: + speed = "variable"; + type = "Wireless "; + break; + default: speed = "?"; break; + } dev_info (&udev->dev, - "%s %s speed USB device using %s and address %d\n", - (udev->config) ? "reset" : "new", - ({ char *speed; switch (udev->speed) { - case USB_SPEED_LOW: speed = "low"; break; - case USB_SPEED_FULL: speed = "full"; break; - case USB_SPEED_HIGH: speed = "high"; break; - default: speed = "?"; break; - }; speed;}), - udev->bus->controller->driver->name, - udev->devnum); + "%s %s speed %sUSB device using %s and address %d\n", + (udev->config) ? "reset" : "new", speed, type, + udev->bus->controller->driver->name, udev->devnum); /* Set up TT records, if needed */ if (hdev->tt) { @@ -2317,6 +2147,8 @@ * down tremendously by NAKing the unexpectedly * early status stage. Also, retry on all errors; * some devices are flakey. + * 255 is for WUSB devices, we actually need to use 512. + * WUSB1.0[4.8.1]. */ for (j = 0; j < 3; ++j) { buf->bMaxPacketSize0 = 0; @@ -2326,7 +2158,7 @@ buf, GET_DESCRIPTOR_BUFSIZE, (i ? USB_CTRL_GET_TIMEOUT : 1000)); switch (buf->bMaxPacketSize0) { - case 8: case 16: case 32: case 64: + case 8: case 16: case 32: case 64: case 255: if (buf->bDescriptorType == USB_DT_DEVICE) { r = 0; @@ -2400,7 +2232,8 @@ if (retval) goto fail; - i = udev->descriptor.bMaxPacketSize0; + i = udev->descriptor.bMaxPacketSize0 == 0xff? + 512 : udev->descriptor.bMaxPacketSize0; if (le16_to_cpu(udev->ep0.desc.wMaxPacketSize) != i) { if (udev->speed != USB_SPEED_FULL || !(i == 8 || i == 16 || i == 32 || i == 64)) { @@ -2585,6 +2418,7 @@ usb_set_device_state(udev, USB_STATE_POWERED); udev->speed = USB_SPEED_UNKNOWN; udev->bus_mA = hub->mA_per_port; + udev->level = hdev->level + 1; /* set the address */ choose_address(udev); @@ -2736,17 +2570,6 @@ usb_get_intf(intf); spin_unlock_irq(&hub_event_lock); - /* Is this is a root hub wanting to reactivate the downstream - * ports? If so, be sure the interface resumes even if its - * stub "device" node was never suspended. - */ - if (i) { - dpm_runtime_resume(&hdev->dev); - dpm_runtime_resume(&intf->dev); - usb_put_intf(intf); - continue; - } - /* Lock the device, then check to see if we were * disconnected while waiting for the lock to succeed. */ if (locktree(hdev) < 0) { @@ -2763,6 +2586,13 @@ goto loop; } + /* Is this is a root hub wanting to reactivate the downstream + * ports? If so, be sure the interface resumes even if its + * stub "device" node was never suspended. + */ + if (i) + usb_autoresume_device(hdev, 0); + /* If this is an inactive or suspended hub, do nothing */ if (hub->quiescing) goto loop; @@ -2900,7 +2730,7 @@ /* If this is a root hub, tell the HCD it's okay to * re-enable port-change interrupts now. */ - if (!hdev->parent) + if (!hdev->parent && !hub->busy_bits[0]) usb_enable_root_hub_irq(hdev->bus); loop: @@ -3075,6 +2905,9 @@ break; } clear_bit(port1, parent_hub->busy_bits); + if (!parent_hdev->parent && !parent_hub->busy_bits[0]) + usb_enable_root_hub_irq(parent_hdev->bus); + if (ret < 0) goto re_enumerate; @@ -3128,6 +2961,7 @@ hub_port_logical_disconnect(parent_hub, port1); return -ENODEV; } +EXPORT_SYMBOL(usb_reset_device); /** * usb_reset_composite_device - warn interface drivers and perform a USB port reset @@ -3163,6 +2997,9 @@ return -EINVAL; } + /* Prevent autosuspend during the reset */ + usb_autoresume_device(udev, 1); + if (iface && iface->condition != USB_INTERFACE_BINDING) iface = NULL; @@ -3204,5 +3041,7 @@ } } + usb_autosuspend_device(udev, 1); return ret; } +EXPORT_SYMBOL(usb_reset_composite_device);
diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h index 29d5f45..0f8e82a 100644 --- a/drivers/usb/core/hub.h +++ b/drivers/usb/core/hub.h
@@ -212,7 +212,8 @@ unsigned long event_bits[1]; /* status change bitmask */ unsigned long change_bits[1]; /* ports with logical connect status change */ - unsigned long busy_bits[1]; /* ports being reset */ + unsigned long busy_bits[1]; /* ports being reset or + resumed */ #if USB_MAXCHILDREN > 31 /* 8*sizeof(unsigned long) - 1 */ #error event_bits[] is too short! #endif
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c index 3182c22..df3d152 100644 --- a/drivers/usb/core/inode.c +++ b/drivers/usb/core/inode.c
@@ -44,7 +44,7 @@ #include "hcd.h" static struct super_operations usbfs_ops; -static struct file_operations default_file_operations; +static const struct file_operations default_file_operations; static struct vfsmount *usbfs_mount; static int usbfs_mount_count; /* = 0 */ static int ignore_mount = 0; @@ -249,7 +249,6 @@ inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; switch (mode & S_IFMT) { @@ -402,13 +401,13 @@ static int default_open (struct inode *inode, struct file *file) { - if (inode->u.generic_ip) - file->private_data = inode->u.generic_ip; + if (inode->i_private) + file->private_data = inode->i_private; return 0; } -static struct file_operations default_file_operations = { +static const struct file_operations default_file_operations = { .read = default_read_file, .write = default_write_file, .open = default_open, @@ -495,7 +494,7 @@ static struct dentry *fs_create_file (const char *name, mode_t mode, struct dentry *parent, void *data, - struct file_operations *fops, + const struct file_operations *fops, uid_t uid, gid_t gid) { struct dentry *dentry; @@ -509,7 +508,7 @@ } else { if (dentry->d_inode) { if (data) - dentry->d_inode->u.generic_ip = data; + dentry->d_inode->i_private = data; if (fops) dentry->d_inode->i_fop = fops; dentry->d_inode->i_uid = uid;
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 4cc8d3e..85b1cd1 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c
@@ -23,59 +23,44 @@ } -static void timeout_kill(unsigned long data) -{ - struct urb *urb = (struct urb *) data; - - usb_unlink_urb(urb); -} - -// Starts urb and waits for completion or timeout -// note that this call is NOT interruptible, while -// many device driver i/o requests should be interruptible -static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length) +/* + * Starts urb and waits for completion or timeout. Note that this call + * is NOT interruptible. Many device driver i/o requests should be + * interruptible and therefore these drivers should implement their + * own interruptible routines. + */ +static int usb_start_wait_urb(struct urb *urb, int timeout, int *actual_length) { - struct completion done; - struct timer_list timer; - int status; + struct completion done; + unsigned long expire; + int status; init_completion(&done); urb->context = &done; urb->actual_length = 0; status = usb_submit_urb(urb, GFP_NOIO); + if (unlikely(status)) + goto out; - if (status == 0) { - if (timeout > 0) { - init_timer(&timer); - timer.expires = jiffies + msecs_to_jiffies(timeout); - timer.data = (unsigned long)urb; - timer.function = timeout_kill; - /* grr. timeout _should_ include submit delays. */ - add_timer(&timer); - } - wait_for_completion(&done); + expire = timeout ? msecs_to_jiffies(timeout) : MAX_SCHEDULE_TIMEOUT; + if (!wait_for_completion_timeout(&done, expire)) { + + dev_dbg(&urb->dev->dev, + "%s timed out on ep%d%s len=%d/%d\n", + current->comm, + usb_pipeendpoint(urb->pipe), + usb_pipein(urb->pipe) ? "in" : "out", + urb->actual_length, + urb->transfer_buffer_length); + + usb_kill_urb(urb); + status = urb->status == -ENOENT ? -ETIMEDOUT : urb->status; + } else status = urb->status; - /* note: HCDs return ETIMEDOUT for other reasons too */ - if (status == -ECONNRESET) { - dev_dbg(&urb->dev->dev, - "%s timed out on ep%d%s len=%d/%d\n", - current->comm, - usb_pipeendpoint(urb->pipe), - usb_pipein(urb->pipe) ? "in" : "out", - urb->actual_length, - urb->transfer_buffer_length - ); - if (urb->actual_length > 0) - status = 0; - else - status = -ETIMEDOUT; - } - if (timeout > 0) - del_timer_sync(&timer); - } - +out: if (actual_length) *actual_length = urb->actual_length; + usb_free_urb(urb); return status; } @@ -263,7 +248,7 @@ static void sg_complete (struct urb *urb, struct pt_regs *regs) { - struct usb_sg_request *io = (struct usb_sg_request *) urb->context; + struct usb_sg_request *io = urb->context; spin_lock (&io->lock); @@ -999,8 +984,8 @@ ep = dev->ep_in[epnum]; dev->ep_in[epnum] = NULL; } - if (ep && dev->bus && dev->bus->op && dev->bus->op->disable) - dev->bus->op->disable(dev, ep); + if (ep && dev->bus) + usb_hcd_endpoint_disable(dev, ep); } /** @@ -1381,9 +1366,6 @@ if (cp && configuration == 0) dev_warn(&dev->dev, "config 0 descriptor??\n"); - if (dev->state == USB_STATE_SUSPENDED) - return -EHOSTUNREACH; - /* Allocate memory for new interfaces before doing anything else, * so that if we run out then nothing will have changed. */ n = nintf = 0; @@ -1418,6 +1400,11 @@ configuration, -i); } + /* Wake up the device so we can send it the Set-Config request */ + ret = usb_autoresume_device(dev, 1); + if (ret) + goto free_interfaces; + /* if it's already configured, clear out old state first. * getting rid of old interfaces means unbinding their drivers. */ @@ -1437,6 +1424,7 @@ dev->actconfig = cp; if (!cp) { usb_set_device_state(dev, USB_STATE_ADDRESS); + usb_autosuspend_device(dev, 1); goto free_interfaces; } usb_set_device_state(dev, USB_STATE_CONFIGURED); @@ -1505,9 +1493,69 @@ usb_create_sysfs_intf_files (intf); } + usb_autosuspend_device(dev, 1); return 0; } +struct set_config_request { + struct usb_device *udev; + int config; + struct work_struct work; +}; + +/* Worker routine for usb_driver_set_configuration() */ +static void driver_set_config_work(void *_req) +{ + struct set_config_request *req = _req; + + usb_lock_device(req->udev); + usb_set_configuration(req->udev, req->config); + usb_unlock_device(req->udev); + usb_put_dev(req->udev); + kfree(req); +} + +/** + * usb_driver_set_configuration - Provide a way for drivers to change device configurations + * @udev: the device whose configuration is being updated + * @config: the configuration being chosen. + * Context: In process context, must be able to sleep + * + * Device interface drivers are not allowed to change device configurations. + * This is because changing configurations will destroy the interface the + * driver is bound to and create new ones; it would be like a floppy-disk + * driver telling the computer to replace the floppy-disk drive with a + * tape drive! + * + * Still, in certain specialized circumstances the need may arise. This + * routine gets around the normal restrictions by using a work thread to + * submit the change-config request. + * + * Returns 0 if the request was succesfully queued, error code otherwise. + * The caller has no way to know whether the queued request will eventually + * succeed. + */ +int usb_driver_set_configuration(struct usb_device *udev, int config) +{ + struct set_config_request *req; + + req = kmalloc(sizeof(*req), GFP_KERNEL); + if (!req) + return -ENOMEM; + req->udev = udev; + req->config = config; + INIT_WORK(&req->work, driver_set_config_work, req); + + usb_get_dev(udev); + if (!schedule_work(&req->work)) { + usb_put_dev(udev); + kfree(req); + return -EINVAL; + } + return 0; +} +EXPORT_SYMBOL_GPL(usb_driver_set_configuration); + // synchronous request completion model EXPORT_SYMBOL(usb_control_msg); EXPORT_SYMBOL(usb_bulk_msg);
diff --git a/drivers/usb/core/notify.c b/drivers/usb/core/notify.c index b042676..6b36897 100644 --- a/drivers/usb/core/notify.c +++ b/drivers/usb/core/notify.c
@@ -50,8 +50,11 @@ void usb_notify_remove_device(struct usb_device *udev) { + /* Protect against simultaneous usbfs open */ + mutex_lock(&usbfs_mutex); blocking_notifier_call_chain(&usb_notifier_list, USB_DEVICE_REMOVE, udev); + mutex_unlock(&usbfs_mutex); } void usb_notify_add_bus(struct usb_bus *ubus)
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index dec973a..55d8f57 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c
@@ -60,7 +60,7 @@ set_bConfigurationValue (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct usb_device *udev = udev = to_usb_device (dev); + struct usb_device *udev = to_usb_device (dev); int config, value; if (sscanf (buf, "%u", &config) != 1 || config > 255) @@ -186,6 +186,7 @@ static struct attribute *dev_attrs[] = { /* current configuration's attributes */ + &dev_attr_configuration.attr, &dev_attr_bNumInterfaces.attr, &dev_attr_bConfigurationValue.attr, &dev_attr_bmAttributes.attr, @@ -209,20 +210,40 @@ .attrs = dev_attrs, }; -void usb_create_sysfs_dev_files (struct usb_device *udev) +int usb_create_sysfs_dev_files(struct usb_device *udev) { struct device *dev = &udev->dev; + int retval; - sysfs_create_group(&dev->kobj, &dev_attr_grp); + retval = sysfs_create_group(&dev->kobj, &dev_attr_grp); + if (retval) + return retval; - if (udev->manufacturer) - device_create_file (dev, &dev_attr_manufacturer); - if (udev->product) - device_create_file (dev, &dev_attr_product); - if (udev->serial) - device_create_file (dev, &dev_attr_serial); - device_create_file (dev, &dev_attr_configuration); - usb_create_ep_files(dev, &udev->ep0, udev); + if (udev->manufacturer) { + retval = device_create_file (dev, &dev_attr_manufacturer); + if (retval) + goto error; + } + if (udev->product) { + retval = device_create_file (dev, &dev_attr_product); + if (retval) + goto error; + } + if (udev->serial) { + retval = device_create_file (dev, &dev_attr_serial); + if (retval) + goto error; + } + retval = usb_create_ep_files(dev, &udev->ep0, udev); + if (retval) + goto error; + return 0; +error: + usb_remove_ep_files(&udev->ep0); + device_remove_file(dev, &dev_attr_manufacturer); + device_remove_file(dev, &dev_attr_product); + device_remove_file(dev, &dev_attr_serial); + return retval; } void usb_remove_sysfs_dev_files (struct usb_device *udev) @@ -238,7 +259,6 @@ device_remove_file(dev, &dev_attr_product); if (udev->serial) device_remove_file(dev, &dev_attr_serial); - device_remove_file (dev, &dev_attr_configuration); } /* Interface fields */ @@ -340,18 +360,28 @@ usb_remove_ep_files(&iface_desc->endpoint[i]); } -void usb_create_sysfs_intf_files (struct usb_interface *intf) +int usb_create_sysfs_intf_files(struct usb_interface *intf) { struct usb_device *udev = interface_to_usbdev(intf); struct usb_host_interface *alt = intf->cur_altsetting; + int retval; - sysfs_create_group(&intf->dev.kobj, &intf_attr_grp); + retval = sysfs_create_group(&intf->dev.kobj, &intf_attr_grp); + if (retval) + goto error; if (alt->string == NULL) alt->string = usb_cache_string(udev, alt->desc.iInterface); if (alt->string) - device_create_file(&intf->dev, &dev_attr_interface); + retval = device_create_file(&intf->dev, &dev_attr_interface); usb_create_intf_ep_files(intf, udev); + return 0; +error: + if (alt->string) + device_remove_file(&intf->dev, &dev_attr_interface); + sysfs_remove_group(&intf->dev.kobj, &intf_attr_grp); + usb_remove_intf_ep_files(intf); + return retval; } void usb_remove_sysfs_intf_files (struct usb_interface *intf)
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 9864988..9801d08e 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c
@@ -57,7 +57,7 @@ { struct urb *urb; - urb = (struct urb *)kmalloc(sizeof(struct urb) + + urb = kmalloc(sizeof(struct urb) + iso_packets * sizeof(struct usb_iso_packet_descriptor), mem_flags); if (!urb) { @@ -221,7 +221,6 @@ { int pipe, temp, max; struct usb_device *dev; - struct usb_operations *op; int is_out; if (!urb || urb->hcpriv || !urb->complete) @@ -233,8 +232,6 @@ if (dev->bus->controller->power.power_state.event != PM_EVENT_ON || dev->state == USB_STATE_SUSPENDED) return -EHOSTUNREACH; - if (!(op = dev->bus->op) || !op->submit_urb) - return -ENODEV; urb->status = -EINPROGRESS; urb->actual_length = 0; @@ -376,7 +373,7 @@ urb->interval = temp; } - return op->submit_urb (urb, mem_flags); + return usb_hcd_submit_urb (urb, mem_flags); } /*-------------------------------------------------------------------*/ @@ -440,9 +437,9 @@ { if (!urb) return -EINVAL; - if (!(urb->dev && urb->dev->bus && urb->dev->bus->op)) + if (!(urb->dev && urb->dev->bus)) return -ENODEV; - return urb->dev->bus->op->unlink_urb(urb, -ECONNRESET); + return usb_hcd_unlink_urb(urb, -ECONNRESET); } /** @@ -468,13 +465,13 @@ void usb_kill_urb(struct urb *urb) { might_sleep(); - if (!(urb && urb->dev && urb->dev->bus && urb->dev->bus->op)) + if (!(urb && urb->dev && urb->dev->bus)) return; spin_lock_irq(&urb->lock); ++urb->reject; spin_unlock_irq(&urb->lock); - urb->dev->bus->op->unlink_urb(urb, -ENOENT); + usb_hcd_unlink_urb(urb, -ENOENT); wait_event(usb_kill_urb_queue, atomic_read(&urb->use_count) == 0); spin_lock_irq(&urb->lock);
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 184c246..60ef4ef 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c
@@ -67,7 +67,8 @@ * Don't call this function unless you are bound to one of the interfaces * on this device or you have locked the device! */ -struct usb_interface *usb_ifnum_to_if(struct usb_device *dev, unsigned ifnum) +struct usb_interface *usb_ifnum_to_if(const struct usb_device *dev, + unsigned ifnum) { struct usb_host_config *config = dev->actconfig; int i; @@ -100,8 +101,8 @@ * Don't call this function unless you are bound to the intf interface * or you have locked the device! */ -struct usb_host_interface *usb_altnum_to_altsetting(struct usb_interface *intf, - unsigned int altnum) +struct usb_host_interface *usb_altnum_to_altsetting(const struct usb_interface *intf, + unsigned int altnum) { int i; @@ -112,87 +113,6 @@ return NULL; } -/** - * usb_driver_claim_interface - bind a driver to an interface - * @driver: the driver to be bound - * @iface: the interface to which it will be bound; must be in the - * usb device's active configuration - * @priv: driver data associated with that interface - * - * This is used by usb device drivers that need to claim more than one - * interface on a device when probing (audio and acm are current examples). - * No device driver should directly modify internal usb_interface or - * usb_device structure members. - * - * Few drivers should need to use this routine, since the most natural - * way to bind to an interface is to return the private data from - * the driver's probe() method. - * - * Callers must own the device lock and the driver model's usb_bus_type.subsys - * writelock. So driver probe() entries don't need extra locking, - * but other call contexts may need to explicitly claim those locks. - */ -int usb_driver_claim_interface(struct usb_driver *driver, - struct usb_interface *iface, void* priv) -{ - struct device *dev = &iface->dev; - - if (dev->driver) - return -EBUSY; - - dev->driver = &driver->driver; - usb_set_intfdata(iface, priv); - iface->condition = USB_INTERFACE_BOUND; - mark_active(iface); - - /* if interface was already added, bind now; else let - * the future device_add() bind it, bypassing probe() - */ - if (device_is_registered(dev)) - device_bind_driver(dev); - - return 0; -} - -/** - * usb_driver_release_interface - unbind a driver from an interface - * @driver: the driver to be unbound - * @iface: the interface from which it will be unbound - * - * This can be used by drivers to release an interface without waiting - * for their disconnect() methods to be called. In typical cases this - * also causes the driver disconnect() method to be called. - * - * This call is synchronous, and may not be used in an interrupt context. - * Callers must own the device lock and the driver model's usb_bus_type.subsys - * writelock. So driver disconnect() entries don't need extra locking, - * but other call contexts may need to explicitly claim those locks. - */ -void usb_driver_release_interface(struct usb_driver *driver, - struct usb_interface *iface) -{ - struct device *dev = &iface->dev; - - /* this should never happen, don't release something that's not ours */ - if (!dev->driver || dev->driver != &driver->driver) - return; - - /* don't release from within disconnect() */ - if (iface->condition != USB_INTERFACE_BOUND) - return; - - /* don't release if the interface hasn't been added yet */ - if (device_is_registered(dev)) { - iface->condition = USB_INTERFACE_UNBINDING; - device_release_driver(dev); - } - - dev->driver = NULL; - usb_set_intfdata(iface, NULL); - iface->condition = USB_INTERFACE_UNBOUND; - mark_quiesced(iface); -} - struct find_interface_arg { int minor; struct usb_interface *interface; @@ -204,7 +124,7 @@ struct usb_interface *intf; /* can't look at usb devices, only interfaces */ - if (dev->driver == &usb_generic_driver) + if (is_usb_device(dev)) return 0; intf = to_usb_interface(dev); @@ -227,127 +147,16 @@ struct usb_interface *usb_find_interface(struct usb_driver *drv, int minor) { struct find_interface_arg argb; + int retval; argb.minor = minor; argb.interface = NULL; - driver_for_each_device(&drv->driver, NULL, &argb, __find_interface); + /* eat the error, it will be in argb.interface */ + retval = driver_for_each_device(&drv->drvwrap.driver, NULL, &argb, + __find_interface); return argb.interface; } -#ifdef CONFIG_HOTPLUG - -/* - * This sends an uevent to userspace, typically helping to load driver - * or other modules, configure the device, and more. Drivers can provide - * a MODULE_DEVICE_TABLE to help with module loading subtasks. - * - * We're called either from khubd (the typical case) or from root hub - * (init, kapmd, modprobe, rmmod, etc), but the agents need to handle - * delays in event delivery. Use sysfs (and DEVPATH) to make sure the - * device (and this configuration!) are still present. - */ -static int usb_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) -{ - struct usb_interface *intf; - struct usb_device *usb_dev; - struct usb_host_interface *alt; - int i = 0; - int length = 0; - - if (!dev) - return -ENODEV; - - /* driver is often null here; dev_dbg() would oops */ - pr_debug ("usb %s: uevent\n", dev->bus_id); - - /* Must check driver_data here, as on remove driver is always NULL */ - if ((dev->driver == &usb_generic_driver) || - (dev->driver_data == &usb_generic_driver_data)) - return 0; - - intf = to_usb_interface(dev); - usb_dev = interface_to_usbdev (intf); - alt = intf->cur_altsetting; - - if (usb_dev->devnum < 0) { - pr_debug ("usb %s: already deleted?\n", dev->bus_id); - return -ENODEV; - } - if (!usb_dev->bus) { - pr_debug ("usb %s: bus removed?\n", dev->bus_id); - return -ENODEV; - } - -#ifdef CONFIG_USB_DEVICEFS - /* If this is available, userspace programs can directly read - * all the device descriptors we don't tell them about. Or - * even act as usermode drivers. - * - * FIXME reduce hardwired intelligence here - */ - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "DEVICE=/proc/bus/usb/%03d/%03d", - usb_dev->bus->busnum, usb_dev->devnum)) - return -ENOMEM; -#endif - - /* per-device configurations are common */ - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "PRODUCT=%x/%x/%x", - le16_to_cpu(usb_dev->descriptor.idVendor), - le16_to_cpu(usb_dev->descriptor.idProduct), - le16_to_cpu(usb_dev->descriptor.bcdDevice))) - return -ENOMEM; - - /* class-based driver binding models */ - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "TYPE=%d/%d/%d", - usb_dev->descriptor.bDeviceClass, - usb_dev->descriptor.bDeviceSubClass, - usb_dev->descriptor.bDeviceProtocol)) - return -ENOMEM; - - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "INTERFACE=%d/%d/%d", - alt->desc.bInterfaceClass, - alt->desc.bInterfaceSubClass, - alt->desc.bInterfaceProtocol)) - return -ENOMEM; - - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MODALIAS=usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02Xic%02Xisc%02Xip%02X", - le16_to_cpu(usb_dev->descriptor.idVendor), - le16_to_cpu(usb_dev->descriptor.idProduct), - le16_to_cpu(usb_dev->descriptor.bcdDevice), - usb_dev->descriptor.bDeviceClass, - usb_dev->descriptor.bDeviceSubClass, - usb_dev->descriptor.bDeviceProtocol, - alt->desc.bInterfaceClass, - alt->desc.bInterfaceSubClass, - alt->desc.bInterfaceProtocol)) - return -ENOMEM; - - envp[i] = NULL; - - return 0; -} - -#else - -static int usb_uevent(struct device *dev, char **envp, - int num_envp, char *buffer, int buffer_size) -{ - return -ENODEV; -} - -#endif /* CONFIG_HOTPLUG */ - /** * usb_release_dev - free a usb device structure when all users of it are finished. * @dev: device that's been disconnected @@ -361,14 +170,33 @@ udev = to_usb_device(dev); +#ifdef CONFIG_PM + cancel_delayed_work(&udev->autosuspend); + flush_scheduled_work(); +#endif usb_destroy_configuration(udev); - usb_bus_put(udev->bus); + usb_put_hcd(bus_to_hcd(udev->bus)); kfree(udev->product); kfree(udev->manufacturer); kfree(udev->serial); kfree(udev); } +#ifdef CONFIG_PM + +/* usb_autosuspend_work - callback routine to autosuspend a USB device */ +static void usb_autosuspend_work(void *_udev) +{ + struct usb_device *udev = _udev; + + mutex_lock_nested(&udev->pm_mutex, udev->level); + udev->auto_pm = 1; + usb_suspend_both(udev, PMSG_SUSPEND); + mutex_unlock(&udev->pm_mutex); +} + +#endif + /** * usb_alloc_dev - usb device constructor (usbcore-internal) * @parent: hub to which device is connected; null to allocate a root hub @@ -390,8 +218,7 @@ if (!dev) return NULL; - bus = usb_bus_get(bus); - if (!bus) { + if (!usb_get_hcd(bus_to_hcd(bus))) { kfree(dev); return NULL; } @@ -399,11 +226,12 @@ device_initialize(&dev->dev); dev->dev.bus = &usb_bus_type; dev->dev.dma_mask = bus->controller->dma_mask; - dev->dev.driver_data = &usb_generic_driver_data; - dev->dev.driver = &usb_generic_driver; dev->dev.release = usb_release_dev; dev->state = USB_STATE_ATTACHED; + /* This magic assignment distinguishes devices from interfaces */ + dev->dev.platform_data = &usb_generic_driver; + INIT_LIST_HEAD(&dev->ep0.urb_list); dev->ep0.desc.bLength = USB_DT_ENDPOINT_SIZE; dev->ep0.desc.bDescriptorType = USB_DT_ENDPOINT; @@ -444,6 +272,10 @@ dev->parent = parent; INIT_LIST_HEAD(&dev->filelist); +#ifdef CONFIG_PM + mutex_init(&dev->pm_mutex); + INIT_WORK(&dev->autosuspend, usb_autosuspend_work, dev); +#endif return dev; } @@ -549,7 +381,7 @@ * case the driver already owns the device lock.) */ int usb_lock_device_for_reset(struct usb_device *udev, - struct usb_interface *iface) + const struct usb_interface *iface) { unsigned long jiffies_expire = jiffies + HZ; @@ -672,7 +504,139 @@ */ int usb_get_current_frame_number(struct usb_device *dev) { - return dev->bus->op->get_frame_number (dev); + return usb_hcd_get_frame_number (dev); +} + +/** + * usb_endpoint_dir_in - check if the endpoint has IN direction + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type IN, otherwise it returns false. + */ +int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN); +} + +/** + * usb_endpoint_dir_out - check if the endpoint has OUT direction + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type OUT, otherwise it returns false. + */ +int usb_endpoint_dir_out(const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT); +} + +/** + * usb_endpoint_xfer_bulk - check if the endpoint has bulk transfer type + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type bulk, otherwise it returns false. + */ +int usb_endpoint_xfer_bulk(const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_BULK); +} + +/** + * usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type interrupt, otherwise it returns + * false. + */ +int usb_endpoint_xfer_int(const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_INT); +} + +/** + * usb_endpoint_xfer_isoc - check if the endpoint has isochronous transfer type + * @epd: endpoint to be checked + * + * Returns true if the endpoint is of type isochronous, otherwise it returns + * false. + */ +int usb_endpoint_xfer_isoc(const struct usb_endpoint_descriptor *epd) +{ + return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_ISOC); +} + +/** + * usb_endpoint_is_bulk_in - check if the endpoint is bulk IN + * @epd: endpoint to be checked + * + * Returns true if the endpoint has bulk transfer type and IN direction, + * otherwise it returns false. + */ +int usb_endpoint_is_bulk_in(const struct usb_endpoint_descriptor *epd) +{ + return (usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd)); +} + +/** + * usb_endpoint_is_bulk_out - check if the endpoint is bulk OUT + * @epd: endpoint to be checked + * + * Returns true if the endpoint has bulk transfer type and OUT direction, + * otherwise it returns false. + */ +int usb_endpoint_is_bulk_out(const struct usb_endpoint_descriptor *epd) +{ + return (usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd)); +} + +/** + * usb_endpoint_is_int_in - check if the endpoint is interrupt IN + * @epd: endpoint to be checked + * + * Returns true if the endpoint has interrupt transfer type and IN direction, + * otherwise it returns false. + */ +int usb_endpoint_is_int_in(const struct usb_endpoint_descriptor *epd) +{ + return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd)); +} + +/** + * usb_endpoint_is_int_out - check if the endpoint is interrupt OUT + * @epd: endpoint to be checked + * + * Returns true if the endpoint has interrupt transfer type and OUT direction, + * otherwise it returns false. + */ +int usb_endpoint_is_int_out(const struct usb_endpoint_descriptor *epd) +{ + return (usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd)); +} + +/** + * usb_endpoint_is_isoc_in - check if the endpoint is isochronous IN + * @epd: endpoint to be checked + * + * Returns true if the endpoint has isochronous transfer type and IN direction, + * otherwise it returns false. + */ +int usb_endpoint_is_isoc_in(const struct usb_endpoint_descriptor *epd) +{ + return (usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd)); +} + +/** + * usb_endpoint_is_isoc_out - check if the endpoint is isochronous OUT + * @epd: endpoint to be checked + * + * Returns true if the endpoint has isochronous transfer type and OUT direction, + * otherwise it returns false. + */ +int usb_endpoint_is_isoc_out(const struct usb_endpoint_descriptor *epd) +{ + return (usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd)); } /*-------------------------------------------------------------------*/ @@ -737,9 +701,9 @@ dma_addr_t *dma ) { - if (!dev || !dev->bus || !dev->bus->op || !dev->bus->op->buffer_alloc) + if (!dev || !dev->bus) return NULL; - return dev->bus->op->buffer_alloc (dev->bus, size, mem_flags, dma); + return hcd_buffer_alloc (dev->bus, size, mem_flags, dma); } /** @@ -760,9 +724,11 @@ dma_addr_t dma ) { - if (!dev || !dev->bus || !dev->bus->op || !dev->bus->op->buffer_free) - return; - dev->bus->op->buffer_free (dev->bus, size, addr, dma); + if (!dev || !dev->bus) + return; + if (!addr) + return; + hcd_buffer_free (dev->bus, size, addr, dma); } /** @@ -911,8 +877,8 @@ * * Reverse the effect of this call with usb_buffer_unmap_sg(). */ -int usb_buffer_map_sg (struct usb_device *dev, unsigned pipe, - struct scatterlist *sg, int nents) +int usb_buffer_map_sg(const struct usb_device *dev, unsigned pipe, + struct scatterlist *sg, int nents) { struct usb_bus *bus; struct device *controller; @@ -946,8 +912,8 @@ * Use this when you are re-using a scatterlist's data buffers for * another USB request. */ -void usb_buffer_dmasync_sg (struct usb_device *dev, unsigned pipe, - struct scatterlist *sg, int n_hw_ents) +void usb_buffer_dmasync_sg(const struct usb_device *dev, unsigned pipe, + struct scatterlist *sg, int n_hw_ents) { struct usb_bus *bus; struct device *controller; @@ -972,8 +938,8 @@ * * Reverses the effect of usb_buffer_map_sg(). */ -void usb_buffer_unmap_sg (struct usb_device *dev, unsigned pipe, - struct scatterlist *sg, int n_hw_ents) +void usb_buffer_unmap_sg(const struct usb_device *dev, unsigned pipe, + struct scatterlist *sg, int n_hw_ents) { struct usb_bus *bus; struct device *controller; @@ -988,116 +954,6 @@ usb_pipein (pipe) ? DMA_FROM_DEVICE : DMA_TO_DEVICE); } -static int verify_suspended(struct device *dev, void *unused) -{ - if (dev->driver == NULL) - return 0; - return (dev->power.power_state.event == PM_EVENT_ON) ? -EBUSY : 0; -} - -static int usb_generic_suspend(struct device *dev, pm_message_t message) -{ - struct usb_interface *intf; - struct usb_driver *driver; - int status; - - /* USB devices enter SUSPEND state through their hubs, but can be - * marked for FREEZE as soon as their children are already idled. - * But those semantics are useless, so we equate the two (sigh). - */ - if (dev->driver == &usb_generic_driver) { - if (dev->power.power_state.event == message.event) - return 0; - /* we need to rule out bogus requests through sysfs */ - status = device_for_each_child(dev, NULL, verify_suspended); - if (status) - return status; - return usb_suspend_device (to_usb_device(dev)); - } - - if ((dev->driver == NULL) || - (dev->driver_data == &usb_generic_driver_data)) - return 0; - - intf = to_usb_interface(dev); - driver = to_usb_driver(dev->driver); - - /* with no hardware, USB interfaces only use FREEZE and ON states */ - if (!is_active(intf)) - return 0; - - if (driver->suspend && driver->resume) { - status = driver->suspend(intf, message); - if (status) - dev_err(dev, "%s error %d\n", "suspend", status); - else - mark_quiesced(intf); - } else { - // FIXME else if there's no suspend method, disconnect... - dev_warn(dev, "no suspend for driver %s?\n", driver->name); - mark_quiesced(intf); - status = 0; - } - return status; -} - -static int usb_generic_resume(struct device *dev) -{ - struct usb_interface *intf; - struct usb_driver *driver; - struct usb_device *udev; - int status; - - if (dev->power.power_state.event == PM_EVENT_ON) - return 0; - - /* mark things as "on" immediately, no matter what errors crop up */ - dev->power.power_state.event = PM_EVENT_ON; - - /* devices resume through their hubs */ - if (dev->driver == &usb_generic_driver) { - udev = to_usb_device(dev); - if (udev->state == USB_STATE_NOTATTACHED) - return 0; - return usb_resume_device (to_usb_device(dev)); - } - - if ((dev->driver == NULL) || - (dev->driver_data == &usb_generic_driver_data)) { - dev->power.power_state.event = PM_EVENT_FREEZE; - return 0; - } - - intf = to_usb_interface(dev); - driver = to_usb_driver(dev->driver); - - udev = interface_to_usbdev(intf); - if (udev->state == USB_STATE_NOTATTACHED) - return 0; - - /* if driver was suspended, it has a resume method; - * however, sysfs can wrongly mark things as suspended - * (on the "no suspend method" FIXME path above) - */ - if (driver->resume) { - status = driver->resume(intf); - if (status) { - dev_err(dev, "%s error %d\n", "resume", status); - mark_quiesced(intf); - } - } else - dev_warn(dev, "no resume for driver %s?\n", driver->name); - return 0; -} - -struct bus_type usb_bus_type = { - .name = "usb", - .match = usb_device_match, - .uevent = usb_uevent, - .suspend = usb_generic_suspend, - .resume = usb_generic_resume, -}; - /* format to disable USB on kernel command line is: nousb */ __module_param_call("", nousb, param_set_bool, param_get_bool, &nousb, 0444); @@ -1141,7 +997,7 @@ retval = usb_hub_init(); if (retval) goto hub_init_failed; - retval = driver_register(&usb_generic_driver); + retval = usb_register_device_driver(&usb_generic_driver, THIS_MODULE); if (!retval) goto out; @@ -1171,7 +1027,7 @@ if (nousb) return; - driver_unregister(&usb_generic_driver); + usb_deregister_device_driver(&usb_generic_driver); usb_major_cleanup(); usbfs_cleanup(); usb_deregister(&usbfs_driver); @@ -1201,20 +1057,27 @@ EXPORT_SYMBOL(usb_lock_device_for_reset); -EXPORT_SYMBOL(usb_driver_claim_interface); -EXPORT_SYMBOL(usb_driver_release_interface); EXPORT_SYMBOL(usb_find_interface); EXPORT_SYMBOL(usb_ifnum_to_if); EXPORT_SYMBOL(usb_altnum_to_altsetting); -EXPORT_SYMBOL(usb_reset_device); -EXPORT_SYMBOL(usb_reset_composite_device); - EXPORT_SYMBOL(__usb_get_extra_descriptor); EXPORT_SYMBOL(usb_find_device); EXPORT_SYMBOL(usb_get_current_frame_number); +EXPORT_SYMBOL_GPL(usb_endpoint_dir_in); +EXPORT_SYMBOL_GPL(usb_endpoint_dir_out); +EXPORT_SYMBOL_GPL(usb_endpoint_xfer_bulk); +EXPORT_SYMBOL_GPL(usb_endpoint_xfer_int); +EXPORT_SYMBOL_GPL(usb_endpoint_xfer_isoc); +EXPORT_SYMBOL_GPL(usb_endpoint_is_bulk_in); +EXPORT_SYMBOL_GPL(usb_endpoint_is_bulk_out); +EXPORT_SYMBOL_GPL(usb_endpoint_is_int_in); +EXPORT_SYMBOL_GPL(usb_endpoint_is_int_out); +EXPORT_SYMBOL_GPL(usb_endpoint_is_isoc_in); +EXPORT_SYMBOL_GPL(usb_endpoint_is_isoc_out); + EXPORT_SYMBOL (usb_buffer_alloc); EXPORT_SYMBOL (usb_buffer_free);
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index 49f6923..0c09ecc 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h
@@ -1,10 +1,10 @@ /* Functions local to drivers/usb/core/ */ -extern void usb_create_sysfs_dev_files (struct usb_device *dev); +extern int usb_create_sysfs_dev_files (struct usb_device *dev); extern void usb_remove_sysfs_dev_files (struct usb_device *dev); -extern void usb_create_sysfs_intf_files (struct usb_interface *intf); +extern int usb_create_sysfs_intf_files (struct usb_interface *intf); extern void usb_remove_sysfs_intf_files (struct usb_interface *intf); -extern void usb_create_ep_files(struct device *parent, struct usb_host_endpoint *endpoint, +extern int usb_create_ep_files(struct device *parent, struct usb_host_endpoint *endpoint, struct usb_device *udev); extern void usb_remove_ep_files(struct usb_host_endpoint *endpoint); @@ -20,7 +20,6 @@ extern int usb_set_configuration(struct usb_device *dev, int configuration); extern void usb_kick_khubd(struct usb_device *dev); -extern void usb_suspend_root_hub(struct usb_device *hdev); extern void usb_resume_root_hub(struct usb_device *dev); extern int usb_hub_init(void); @@ -30,28 +29,74 @@ extern int usb_host_init(void); extern void usb_host_cleanup(void); -extern int usb_suspend_device(struct usb_device *dev); -extern int usb_resume_device(struct usb_device *dev); +#ifdef CONFIG_PM -extern struct device_driver usb_generic_driver; -extern int usb_generic_driver_data; -extern int usb_device_match(struct device *dev, struct device_driver *drv); +extern int usb_suspend_both(struct usb_device *udev, pm_message_t msg); +extern int usb_resume_both(struct usb_device *udev); +extern int usb_port_suspend(struct usb_device *dev); +extern int usb_port_resume(struct usb_device *dev); + +#else + +#define usb_suspend_both(udev, msg) 0 +static inline int usb_resume_both(struct usb_device *udev) +{ + return 0; +} +#define usb_port_suspend(dev) 0 +#define usb_port_resume(dev) 0 + +#endif + +#ifdef CONFIG_USB_SUSPEND + +#define USB_AUTOSUSPEND_DELAY (HZ*2) + +extern void usb_autosuspend_device(struct usb_device *udev, int dec_busy_cnt); +extern int usb_autoresume_device(struct usb_device *udev, int inc_busy_cnt); + +#else + +#define usb_autosuspend_device(udev, dec_busy_cnt) do {} while (0) +#define usb_autoresume_device(udev, inc_busy_cnt) 0 + +#endif + +extern struct bus_type usb_bus_type; +extern struct usb_device_driver usb_generic_driver; + +/* Here's how we tell apart devices and interfaces. Luckily there's + * no such thing as a platform USB device, so we can steal the use + * of the platform_data field. */ + +static inline int is_usb_device(const struct device *dev) +{ + return dev->platform_data == &usb_generic_driver; +} + +/* Do the same for device drivers and interface drivers. */ + +static inline int is_usb_device_driver(struct device_driver *drv) +{ + return container_of(drv, struct usbdrv_wrap, driver)-> + for_devices; +} /* Interfaces and their "power state" are owned by usbcore */ static inline void mark_active(struct usb_interface *f) { - f->dev.power.power_state.event = PM_EVENT_ON; + f->is_active = 1; } static inline void mark_quiesced(struct usb_interface *f) { - f->dev.power.power_state.event = PM_EVENT_FREEZE; + f->is_active = 0; } -static inline int is_active(struct usb_interface *f) +static inline int is_active(const struct usb_interface *f) { - return f->dev.power.power_state.event == PM_EVENT_ON; + return f->is_active; } @@ -59,9 +104,10 @@ extern const char *usbcore_name; /* usbfs stuff */ +extern struct mutex usbfs_mutex; extern struct usb_driver usbfs_driver; -extern struct file_operations usbfs_devices_fops; -extern struct file_operations usbfs_device_file_operations; +extern const struct file_operations usbfs_devices_fops; +extern const struct file_operations usbfs_device_file_operations; extern void usbfs_conn_disc_event(void); extern int usbdev_init(void);
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 1a32d96..8e5dd6f 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig
@@ -26,7 +26,7 @@ you need a low level bus controller driver, and some software talking to it. Peripheral controllers are often discrete silicon, or are integrated with the CPU in a microcontroller. The more - familiar host side controllers have names like like "EHCI", "OHCI", + familiar host side controllers have names like "EHCI", "OHCI", or "UHCI", and are usually integrated into southbridges on PC motherboards. @@ -404,6 +404,20 @@ which includes instructions and a "driver info file" needed to make MS-Windows work with this driver. +config USB_MIDI_GADGET + tristate "MIDI Gadget (EXPERIMENTAL)" + depends on SND && EXPERIMENTAL + select SND_RAWMIDI + help + The MIDI Gadget acts as a USB Audio device, with one MIDI + input and one MIDI output. These MIDI jacks appear as + a sound "card" in the ALSA sound system. Other MIDI + connections can then be made on the gadget system, using + ALSA's aconnect utility etc. + + Say "y" to link the driver statically, or "m" to build a + dynamically linked module called "g_midi". + # put drivers that need isochronous transfer support (for audio # or video class gadget drivers), or specific hardware, here.
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 5a28e613..e71e086 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile
@@ -15,6 +15,7 @@ g_zero-objs := zero.o usbstring.o config.o epautoconf.o g_ether-objs := ether.o usbstring.o config.o epautoconf.o g_serial-objs := serial.o usbstring.o config.o epautoconf.o +g_midi-objs := gmidi.o usbstring.o config.o epautoconf.o gadgetfs-objs := inode.o g_file_storage-objs := file_storage.o usbstring.o config.o \ epautoconf.o @@ -28,4 +29,5 @@ obj-$(CONFIG_USB_GADGETFS) += gadgetfs.o obj-$(CONFIG_USB_FILE_STORAGE) += g_file_storage.o obj-$(CONFIG_USB_G_SERIAL) += g_serial.o +obj-$(CONFIG_USB_MIDI_GADGET) += g_midi.o
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index cfebca0..d00958a 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c
@@ -247,7 +247,7 @@ return single_open(file, proc_udc_show, PDE(inode)->data); } -static struct file_operations proc_ops = { +static const struct file_operations proc_ops = { .open = proc_udc_open, .read = seq_read, .llseek = seq_lseek,
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 7d1c22c..fdab97a 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c
@@ -889,11 +889,9 @@ static void dummy_gadget_release (struct device *dev) { -#if 0 /* usb_bus_put isn't EXPORTed! */ struct dummy *dum = gadget_dev_to_dummy (dev); - usb_bus_put (&dummy_to_hcd (dum)->self); -#endif + usb_put_hcd (dummy_to_hcd (dum)); } static int dummy_udc_probe (struct platform_device *pdev) @@ -915,9 +913,7 @@ if (rc < 0) return rc; -#if 0 /* usb_bus_get isn't EXPORTed! */ - usb_bus_get (&dummy_to_hcd (dum)->self); -#endif + usb_get_hcd (dummy_to_hcd (dum)); platform_set_drvdata (pdev, dum); device_create_file (&dum->gadget.dev, &dev_attr_function);
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index 30299c6..366dc0a 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c
@@ -262,7 +262,7 @@ #define DEV_CONFIG_CDC #endif -#ifdef CONFIG_USB_GADGET_MUSBHDRC +#ifdef CONFIG_USB_GADGET_MUSB_HDRC #define DEV_CONFIG_CDC #endif @@ -2014,7 +2014,7 @@ static int rndis_control_ack (struct net_device *net) { struct eth_dev *dev = netdev_priv(net); - u32 length; + int length; struct usb_request *resp = dev->stat_req; /* in case RNDIS calls this after disconnect */ @@ -2230,6 +2230,9 @@ if (gadget_is_pxa (gadget)) { /* pxa doesn't support altsettings */ cdc = 0; + } else if (gadget_is_musbhdrc(gadget)) { + /* reduce tx dma overhead by avoiding special cases */ + zlp = 0; } else if (gadget_is_sh(gadget)) { /* sh doesn't support multiple interfaces or configs */ cdc = 0; @@ -2564,7 +2567,7 @@ .function = (char *) driver_desc, .bind = eth_bind, - .unbind = __exit_p(eth_unbind), + .unbind = eth_unbind, .setup = eth_setup, .disconnect = eth_disconnect,
diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c new file mode 100644 index 0000000..b68cecd --- /dev/null +++ b/drivers/usb/gadget/gmidi.c
@@ -0,0 +1,1337 @@ +/* + * gmidi.c -- USB MIDI Gadget Driver + * + * Copyright (C) 2006 Thumtronics Pty Ltd. + * Developed for Thumtronics by Grey Innovation + * Ben Williamson <ben.williamson@greyinnovation.com> + * + * This software is distributed under the terms of the GNU General Public + * License ("GPL") version 2, as published by the Free Software Foundation. + * + * This code is based in part on: + * + * Gadget Zero driver, Copyright (C) 2003-2004 David Brownell. + * USB Audio driver, Copyright (C) 2002 by Takashi Iwai. + * USB MIDI driver, Copyright (C) 2002-2005 Clemens Ladisch. + * + * Refer to the USB Device Class Definition for MIDI Devices: + * http://www.usb.org/developers/devclass_docs/midi10.pdf + */ + +#define DEBUG 1 +// #define VERBOSE + +#include <linux/config.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/utsname.h> +#include <linux/device.h> +#include <linux/moduleparam.h> + +#include <sound/driver.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/rawmidi.h> + +#include <linux/usb_ch9.h> +#include <linux/usb_gadget.h> +#include <linux/usb/audio.h> +#include <linux/usb/midi.h> + +#include "gadget_chips.h" + +MODULE_AUTHOR("Ben Williamson"); +MODULE_LICENSE("GPL v2"); + +#define DRIVER_VERSION "25 Jul 2006" + +static const char shortname[] = "g_midi"; +static const char longname[] = "MIDI Gadget"; + +static int index = SNDRV_DEFAULT_IDX1; +static char *id = SNDRV_DEFAULT_STR1; + +module_param(index, int, 0444); +MODULE_PARM_DESC(index, "Index value for the USB MIDI Gadget adapter."); +module_param(id, charp, 0444); +MODULE_PARM_DESC(id, "ID string for the USB MIDI Gadget adapter."); + +/* Some systems will want different product identifers published in the + * device descriptor, either numbers or strings or both. These string + * parameters are in UTF-8 (superset of ASCII's 7 bit characters). + */ + +static ushort idVendor; +module_param(idVendor, ushort, S_IRUGO); +MODULE_PARM_DESC(idVendor, "USB Vendor ID"); + +static ushort idProduct; +module_param(idProduct, ushort, S_IRUGO); +MODULE_PARM_DESC(idProduct, "USB Product ID"); + +static ushort bcdDevice; +module_param(bcdDevice, ushort, S_IRUGO); +MODULE_PARM_DESC(bcdDevice, "USB Device version (BCD)"); + +static char *iManufacturer; +module_param(iManufacturer, charp, S_IRUGO); +MODULE_PARM_DESC(iManufacturer, "USB Manufacturer string"); + +static char *iProduct; +module_param(iProduct, charp, S_IRUGO); +MODULE_PARM_DESC(iProduct, "USB Product string"); + +static char *iSerialNumber; +module_param(iSerialNumber, charp, S_IRUGO); +MODULE_PARM_DESC(iSerialNumber, "SerialNumber"); + +/* + * this version autoconfigures as much as possible, + * which is reasonable for most "bulk-only" drivers. + */ +static const char *EP_IN_NAME; +static const char *EP_OUT_NAME; + + +/* big enough to hold our biggest descriptor */ +#define USB_BUFSIZ 256 + + +/* This is a gadget, and the IN/OUT naming is from the host's perspective. + USB -> OUT endpoint -> rawmidi + USB <- IN endpoint <- rawmidi */ +struct gmidi_in_port { + struct gmidi_device* dev; + int active; + uint8_t cable; /* cable number << 4 */ + uint8_t state; +#define STATE_UNKNOWN 0 +#define STATE_1PARAM 1 +#define STATE_2PARAM_1 2 +#define STATE_2PARAM_2 3 +#define STATE_SYSEX_0 4 +#define STATE_SYSEX_1 5 +#define STATE_SYSEX_2 6 + uint8_t data[2]; +}; + +struct gmidi_device { + spinlock_t lock; + struct usb_gadget *gadget; + struct usb_request *req; /* for control responses */ + u8 config; + struct usb_ep *in_ep, *out_ep; + struct snd_card *card; + struct snd_rawmidi *rmidi; + struct snd_rawmidi_substream *in_substream; + struct snd_rawmidi_substream *out_substream; + + /* For the moment we only support one port in + each direction, but in_port is kept as a + separate struct so we can have more later. */ + struct gmidi_in_port in_port; + unsigned long out_triggered; + struct tasklet_struct tasklet; +}; + +static void gmidi_transmit(struct gmidi_device* dev, struct usb_request* req); + + +#define xprintk(d,level,fmt,args...) \ + dev_printk(level , &(d)->gadget->dev , fmt , ## args) + +#ifdef DEBUG +#define DBG(dev,fmt,args...) \ + xprintk(dev , KERN_DEBUG , fmt , ## args) +#else +#define DBG(dev,fmt,args...) \ + do { } while (0) +#endif /* DEBUG */ + +#ifdef VERBOSE +#define VDBG DBG +#else +#define VDBG(dev,fmt,args...) \ + do { } while (0) +#endif /* VERBOSE */ + +#define ERROR(dev,fmt,args...) \ + xprintk(dev , KERN_ERR , fmt , ## args) +#define WARN(dev,fmt,args...) \ + xprintk(dev , KERN_WARNING , fmt , ## args) +#define INFO(dev,fmt,args...) \ + xprintk(dev , KERN_INFO , fmt , ## args) + + +static unsigned buflen = 256; +static unsigned qlen = 32; + +module_param(buflen, uint, S_IRUGO); +module_param(qlen, uint, S_IRUGO); + + +/* Thanks to Grey Innovation for donating this product ID. + * + * DO NOT REUSE THESE IDs with a protocol-incompatible driver!! Ever!! + * Instead: allocate your own, using normal USB-IF procedures. + */ +#define DRIVER_VENDOR_NUM 0x17b3 /* Grey Innovation */ +#define DRIVER_PRODUCT_NUM 0x0004 /* Linux-USB "MIDI Gadget" */ + + +/* + * DESCRIPTORS ... most are static, but strings and (full) + * configuration descriptors are built on demand. + */ + +#define STRING_MANUFACTURER 25 +#define STRING_PRODUCT 42 +#define STRING_SERIAL 101 +#define STRING_MIDI_GADGET 250 + +/* We only have the one configuration, it's number 1. */ +#define GMIDI_CONFIG 1 + +/* We have two interfaces- AudioControl and MIDIStreaming */ +#define GMIDI_AC_INTERFACE 0 +#define GMIDI_MS_INTERFACE 1 +#define GMIDI_NUM_INTERFACES 2 + +DECLARE_USB_AC_HEADER_DESCRIPTOR(1); +DECLARE_USB_MIDI_OUT_JACK_DESCRIPTOR(1); +DECLARE_USB_MS_ENDPOINT_DESCRIPTOR(1); + +/* B.1 Device Descriptor */ +static struct usb_device_descriptor device_desc = { + .bLength = USB_DT_DEVICE_SIZE, + .bDescriptorType = USB_DT_DEVICE, + .bcdUSB = __constant_cpu_to_le16(0x0200), + .bDeviceClass = USB_CLASS_PER_INTERFACE, + .idVendor = __constant_cpu_to_le16(DRIVER_VENDOR_NUM), + .idProduct = __constant_cpu_to_le16(DRIVER_PRODUCT_NUM), + .iManufacturer = STRING_MANUFACTURER, + .iProduct = STRING_PRODUCT, + .bNumConfigurations = 1, +}; + +/* B.2 Configuration Descriptor */ +static struct usb_config_descriptor config_desc = { + .bLength = USB_DT_CONFIG_SIZE, + .bDescriptorType = USB_DT_CONFIG, + /* compute wTotalLength on the fly */ + .bNumInterfaces = GMIDI_NUM_INTERFACES, + .bConfigurationValue = GMIDI_CONFIG, + .iConfiguration = STRING_MIDI_GADGET, + /* + * FIXME: When embedding this driver in a device, + * these need to be set to reflect the actual + * power properties of the device. Is it selfpowered? + */ + .bmAttributes = USB_CONFIG_ATT_ONE, + .bMaxPower = 1, +}; + +/* B.3.1 Standard AC Interface Descriptor */ +static const struct usb_interface_descriptor ac_interface_desc = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = GMIDI_AC_INTERFACE, + .bNumEndpoints = 0, + .bInterfaceClass = USB_CLASS_AUDIO, + .bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL, + .iInterface = STRING_MIDI_GADGET, +}; + +/* B.3.2 Class-Specific AC Interface Descriptor */ +static const struct usb_ac_header_descriptor_1 ac_header_desc = { + .bLength = USB_DT_AC_HEADER_SIZE(1), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubtype = USB_MS_HEADER, + .bcdADC = __constant_cpu_to_le16(0x0100), + .wTotalLength = USB_DT_AC_HEADER_SIZE(1), + .bInCollection = 1, + .baInterfaceNr = { + [0] = GMIDI_MS_INTERFACE, + } +}; + +/* B.4.1 Standard MS Interface Descriptor */ +static const struct usb_interface_descriptor ms_interface_desc = { + .bLength = USB_DT_INTERFACE_SIZE, + .bDescriptorType = USB_DT_INTERFACE, + .bInterfaceNumber = GMIDI_MS_INTERFACE, + .bNumEndpoints = 2, + .bInterfaceClass = USB_CLASS_AUDIO, + .bInterfaceSubClass = USB_SUBCLASS_MIDISTREAMING, + .iInterface = STRING_MIDI_GADGET, +}; + +/* B.4.2 Class-Specific MS Interface Descriptor */ +static const struct usb_ms_header_descriptor ms_header_desc = { + .bLength = USB_DT_MS_HEADER_SIZE, + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubtype = USB_MS_HEADER, + .bcdMSC = __constant_cpu_to_le16(0x0100), + .wTotalLength = USB_DT_MS_HEADER_SIZE + + 2*USB_DT_MIDI_IN_SIZE + + 2*USB_DT_MIDI_OUT_SIZE(1), +}; + +#define JACK_IN_EMB 1 +#define JACK_IN_EXT 2 +#define JACK_OUT_EMB 3 +#define JACK_OUT_EXT 4 + +/* B.4.3 MIDI IN Jack Descriptors */ +static const struct usb_midi_in_jack_descriptor jack_in_emb_desc = { + .bLength = USB_DT_MIDI_IN_SIZE, + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubtype = USB_MS_MIDI_IN_JACK, + .bJackType = USB_MS_EMBEDDED, + .bJackID = JACK_IN_EMB, +}; + +static const struct usb_midi_in_jack_descriptor jack_in_ext_desc = { + .bLength = USB_DT_MIDI_IN_SIZE, + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubtype = USB_MS_MIDI_IN_JACK, + .bJackType = USB_MS_EXTERNAL, + .bJackID = JACK_IN_EXT, +}; + +/* B.4.4 MIDI OUT Jack Descriptors */ +static const struct usb_midi_out_jack_descriptor_1 jack_out_emb_desc = { + .bLength = USB_DT_MIDI_OUT_SIZE(1), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubtype = USB_MS_MIDI_OUT_JACK, + .bJackType = USB_MS_EMBEDDED, + .bJackID = JACK_OUT_EMB, + .bNrInputPins = 1, + .pins = { + [0] = { + .baSourceID = JACK_IN_EXT, + .baSourcePin = 1, + } + } +}; + +static const struct usb_midi_out_jack_descriptor_1 jack_out_ext_desc = { + .bLength = USB_DT_MIDI_OUT_SIZE(1), + .bDescriptorType = USB_DT_CS_INTERFACE, + .bDescriptorSubtype = USB_MS_MIDI_OUT_JACK, + .bJackType = USB_MS_EXTERNAL, + .bJackID = JACK_OUT_EXT, + .bNrInputPins = 1, + .pins = { + [0] = { + .baSourceID = JACK_IN_EMB, + .baSourcePin = 1, + } + } +}; + +/* B.5.1 Standard Bulk OUT Endpoint Descriptor */ +static struct usb_endpoint_descriptor bulk_out_desc = { + .bLength = USB_DT_ENDPOINT_AUDIO_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = USB_DIR_OUT, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +/* B.5.2 Class-specific MS Bulk OUT Endpoint Descriptor */ +static const struct usb_ms_endpoint_descriptor_1 ms_out_desc = { + .bLength = USB_DT_MS_ENDPOINT_SIZE(1), + .bDescriptorType = USB_DT_CS_ENDPOINT, + .bDescriptorSubtype = USB_MS_GENERAL, + .bNumEmbMIDIJack = 1, + .baAssocJackID = { + [0] = JACK_IN_EMB, + } +}; + +/* B.6.1 Standard Bulk IN Endpoint Descriptor */ +static struct usb_endpoint_descriptor bulk_in_desc = { + .bLength = USB_DT_ENDPOINT_AUDIO_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_XFER_BULK, +}; + +/* B.6.2 Class-specific MS Bulk IN Endpoint Descriptor */ +static const struct usb_ms_endpoint_descriptor_1 ms_in_desc = { + .bLength = USB_DT_MS_ENDPOINT_SIZE(1), + .bDescriptorType = USB_DT_CS_ENDPOINT, + .bDescriptorSubtype = USB_MS_GENERAL, + .bNumEmbMIDIJack = 1, + .baAssocJackID = { + [0] = JACK_OUT_EMB, + } +}; + +static const struct usb_descriptor_header *gmidi_function [] = { + (struct usb_descriptor_header *)&ac_interface_desc, + (struct usb_descriptor_header *)&ac_header_desc, + (struct usb_descriptor_header *)&ms_interface_desc, + + (struct usb_descriptor_header *)&ms_header_desc, + (struct usb_descriptor_header *)&jack_in_emb_desc, + (struct usb_descriptor_header *)&jack_in_ext_desc, + (struct usb_descriptor_header *)&jack_out_emb_desc, + (struct usb_descriptor_header *)&jack_out_ext_desc, + /* If you add more jacks, update ms_header_desc.wTotalLength */ + + (struct usb_descriptor_header *)&bulk_out_desc, + (struct usb_descriptor_header *)&ms_out_desc, + (struct usb_descriptor_header *)&bulk_in_desc, + (struct usb_descriptor_header *)&ms_in_desc, + NULL, +}; + +static char manufacturer[50]; +static char product_desc[40] = "MIDI Gadget"; +static char serial_number[20]; + +/* static strings, in UTF-8 */ +static struct usb_string strings [] = { + { STRING_MANUFACTURER, manufacturer, }, + { STRING_PRODUCT, product_desc, }, + { STRING_SERIAL, serial_number, }, + { STRING_MIDI_GADGET, longname, }, + { } /* end of list */ +}; + +static struct usb_gadget_strings stringtab = { + .language = 0x0409, /* en-us */ + .strings = strings, +}; + +static int config_buf(struct usb_gadget *gadget, + u8 *buf, u8 type, unsigned index) +{ + int len; + + /* only one configuration */ + if (index != 0) { + return -EINVAL; + } + len = usb_gadget_config_buf(&config_desc, + buf, USB_BUFSIZ, gmidi_function); + if (len < 0) { + return len; + } + ((struct usb_config_descriptor *)buf)->bDescriptorType = type; + return len; +} + +static struct usb_request* alloc_ep_req(struct usb_ep *ep, unsigned length) +{ + struct usb_request *req; + + req = usb_ep_alloc_request(ep, GFP_ATOMIC); + if (req) { + req->length = length; + req->buf = kmalloc(length, GFP_ATOMIC); + if (!req->buf) { + usb_ep_free_request(ep, req); + req = NULL; + } + } + return req; +} + +static void free_ep_req(struct usb_ep *ep, struct usb_request *req) +{ + kfree(req->buf); + usb_ep_free_request(ep, req); +} + +static const uint8_t gmidi_cin_length[] = { + 0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1 +}; + +/* + * Receives a chunk of MIDI data. + */ +static void gmidi_read_data(struct usb_ep *ep, int cable, + uint8_t* data, int length) +{ + struct gmidi_device *dev = ep->driver_data; + /* cable is ignored, because for now we only have one. */ + + if (!dev->out_substream) { + /* Nobody is listening - throw it on the floor. */ + return; + } + if (!test_bit(dev->out_substream->number, &dev->out_triggered)) { + return; + } + snd_rawmidi_receive(dev->out_substream, data, length); +} + +static void gmidi_handle_out_data(struct usb_ep *ep, struct usb_request *req) +{ + unsigned i; + u8 *buf = req->buf; + + for (i = 0; i + 3 < req->actual; i += 4) { + if (buf[i] != 0) { + int cable = buf[i] >> 4; + int length = gmidi_cin_length[buf[i] & 0x0f]; + gmidi_read_data(ep, cable, &buf[i + 1], length); + } + } +} + +static void gmidi_complete(struct usb_ep *ep, struct usb_request *req) +{ + struct gmidi_device *dev = ep->driver_data; + int status = req->status; + + switch (status) { + case 0: /* normal completion */ + if (ep == dev->out_ep) { + /* we received stuff. + req is queued again, below */ + gmidi_handle_out_data(ep, req); + } else if (ep == dev->in_ep) { + /* our transmit completed. + see if there's more to go. + gmidi_transmit eats req, don't queue it again. */ + gmidi_transmit(dev, req); + return; + } + break; + + /* this endpoint is normally active while we're configured */ + case -ECONNABORTED: /* hardware forced ep reset */ + case -ECONNRESET: /* request dequeued */ + case -ESHUTDOWN: /* disconnect from host */ + VDBG(dev, "%s gone (%d), %d/%d\n", ep->name, status, + req->actual, req->length); + if (ep == dev->out_ep) { + gmidi_handle_out_data(ep, req); + } + free_ep_req(ep, req); + return; + + case -EOVERFLOW: /* buffer overrun on read means that + * we didn't provide a big enough + * buffer. + */ + default: + DBG(dev, "%s complete --> %d, %d/%d\n", ep->name, + status, req->actual, req->length); + break; + case -EREMOTEIO: /* short read */ + break; + } + + status = usb_ep_queue(ep, req, GFP_ATOMIC); + if (status) { + ERROR(dev, "kill %s: resubmit %d bytes --> %d\n", + ep->name, req->length, status); + usb_ep_set_halt(ep); + /* FIXME recover later ... somehow */ + } +} + +static int set_gmidi_config(struct gmidi_device *dev, gfp_t gfp_flags) +{ + int err = 0; + struct usb_request *req; + struct usb_ep* ep; + unsigned i; + + err = usb_ep_enable(dev->in_ep, &bulk_in_desc); + if (err) { + ERROR(dev, "can't start %s: %d\n", dev->in_ep->name, err); + goto fail; + } + dev->in_ep->driver_data = dev; + + err = usb_ep_enable(dev->out_ep, &bulk_out_desc); + if (err) { + ERROR(dev, "can't start %s: %d\n", dev->out_ep->name, err); + goto fail; + } + dev->out_ep->driver_data = dev; + + /* allocate a bunch of read buffers and queue them all at once. */ + ep = dev->out_ep; + for (i = 0; i < qlen && err == 0; i++) { + req = alloc_ep_req(ep, buflen); + if (req) { + req->complete = gmidi_complete; + err = usb_ep_queue(ep, req, GFP_ATOMIC); + if (err) { + DBG(dev, "%s queue req: %d\n", ep->name, err); + } + } else { + err = -ENOMEM; + } + } +fail: + /* caller is responsible for cleanup on error */ + return err; +} + + +static void gmidi_reset_config(struct gmidi_device *dev) +{ + if (dev->config == 0) { + return; + } + + DBG(dev, "reset config\n"); + + /* just disable endpoints, forcing completion of pending i/o. + * all our completion handlers free their requests in this case. + */ + usb_ep_disable(dev->in_ep); + usb_ep_disable(dev->out_ep); + dev->config = 0; +} + +/* change our operational config. this code must agree with the code + * that returns config descriptors, and altsetting code. + * + * it's also responsible for power management interactions. some + * configurations might not work with our current power sources. + * + * note that some device controller hardware will constrain what this + * code can do, perhaps by disallowing more than one configuration or + * by limiting configuration choices (like the pxa2xx). + */ +static int +gmidi_set_config(struct gmidi_device *dev, unsigned number, gfp_t gfp_flags) +{ + int result = 0; + struct usb_gadget *gadget = dev->gadget; + +#if 0 + /* FIXME */ + /* Hacking this bit out fixes a bug where on receipt of two + USB_REQ_SET_CONFIGURATION messages, we end up with no + buffered OUT requests waiting for data. This is clearly + hiding a bug elsewhere, because if the config didn't + change then we really shouldn't do anything. */ + /* Having said that, when we do "change" from config 1 + to config 1, we at least gmidi_reset_config() which + clears out any requests on endpoints, so it's not like + we leak or anything. */ + if (number == dev->config) { + return 0; + } +#endif + + if (gadget_is_sa1100(gadget) && dev->config) { + /* tx fifo is full, but we can't clear it...*/ + INFO(dev, "can't change configurations\n"); + return -ESPIPE; + } + gmidi_reset_config(dev); + + switch (number) { + case GMIDI_CONFIG: + result = set_gmidi_config(dev, gfp_flags); + break; + default: + result = -EINVAL; + /* FALL THROUGH */ + case 0: + return result; + } + + if (!result && (!dev->in_ep || !dev->out_ep)) { + result = -ENODEV; + } + if (result) { + gmidi_reset_config(dev); + } else { + char *speed; + + switch (gadget->speed) { + case USB_SPEED_LOW: speed = "low"; break; + case USB_SPEED_FULL: speed = "full"; break; + case USB_SPEED_HIGH: speed = "high"; break; + default: speed = "?"; break; + } + + dev->config = number; + INFO(dev, "%s speed\n", speed); + } + return result; +} + + +static void gmidi_setup_complete(struct usb_ep *ep, struct usb_request *req) +{ + if (req->status || req->actual != req->length) { + DBG((struct gmidi_device *) ep->driver_data, + "setup complete --> %d, %d/%d\n", + req->status, req->actual, req->length); + } +} + +/* + * The setup() callback implements all the ep0 functionality that's + * not handled lower down, in hardware or the hardware driver (like + * device and endpoint feature flags, and their status). It's all + * housekeeping for the gadget function we're implementing. Most of + * the work is in config-specific setup. + */ +static int gmidi_setup(struct usb_gadget *gadget, + const struct usb_ctrlrequest *ctrl) +{ + struct gmidi_device *dev = get_gadget_data(gadget); + struct usb_request *req = dev->req; + int value = -EOPNOTSUPP; + u16 w_index = le16_to_cpu(ctrl->wIndex); + u16 w_value = le16_to_cpu(ctrl->wValue); + u16 w_length = le16_to_cpu(ctrl->wLength); + + /* usually this stores reply data in the pre-allocated ep0 buffer, + * but config change events will reconfigure hardware. + */ + req->zero = 0; + switch (ctrl->bRequest) { + + case USB_REQ_GET_DESCRIPTOR: + if (ctrl->bRequestType != USB_DIR_IN) { + goto unknown; + } + switch (w_value >> 8) { + + case USB_DT_DEVICE: + value = min(w_length, (u16) sizeof(device_desc)); + memcpy(req->buf, &device_desc, value); + break; + case USB_DT_CONFIG: + value = config_buf(gadget, req->buf, + w_value >> 8, + w_value & 0xff); + if (value >= 0) { + value = min(w_length, (u16)value); + } + break; + + case USB_DT_STRING: + /* wIndex == language code. + * this driver only handles one language, you can + * add string tables for other languages, using + * any UTF-8 characters + */ + value = usb_gadget_get_string(&stringtab, + w_value & 0xff, req->buf); + if (value >= 0) { + value = min(w_length, (u16)value); + } + break; + } + break; + + /* currently two configs, two speeds */ + case USB_REQ_SET_CONFIGURATION: + if (ctrl->bRequestType != 0) { + goto unknown; + } + if (gadget->a_hnp_support) { + DBG(dev, "HNP available\n"); + } else if (gadget->a_alt_hnp_support) { + DBG(dev, "HNP needs a different root port\n"); + } else { + VDBG(dev, "HNP inactive\n"); + } + spin_lock(&dev->lock); + value = gmidi_set_config(dev, w_value, GFP_ATOMIC); + spin_unlock(&dev->lock); + break; + case USB_REQ_GET_CONFIGURATION: + if (ctrl->bRequestType != USB_DIR_IN) { + goto unknown; + } + *(u8 *)req->buf = dev->config; + value = min(w_length, (u16)1); + break; + + /* until we add altsetting support, or other interfaces, + * only 0/0 are possible. pxa2xx only supports 0/0 (poorly) + * and already killed pending endpoint I/O. + */ + case USB_REQ_SET_INTERFACE: + if (ctrl->bRequestType != USB_RECIP_INTERFACE) { + goto unknown; + } + spin_lock(&dev->lock); + if (dev->config && w_index < GMIDI_NUM_INTERFACES + && w_value == 0) + { + u8 config = dev->config; + + /* resets interface configuration, forgets about + * previous transaction state (queued bufs, etc) + * and re-inits endpoint state (toggle etc) + * no response queued, just zero status == success. + * if we had more than one interface we couldn't + * use this "reset the config" shortcut. + */ + gmidi_reset_config(dev); + gmidi_set_config(dev, config, GFP_ATOMIC); + value = 0; + } + spin_unlock(&dev->lock); + break; + case USB_REQ_GET_INTERFACE: + if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE)) { + goto unknown; + } + if (!dev->config) { + break; + } + if (w_index >= GMIDI_NUM_INTERFACES) { + value = -EDOM; + break; + } + *(u8 *)req->buf = 0; + value = min(w_length, (u16)1); + break; + + default: +unknown: + VDBG(dev, "unknown control req%02x.%02x v%04x i%04x l%d\n", + ctrl->bRequestType, ctrl->bRequest, + w_value, w_index, w_length); + } + + /* respond with data transfer before status phase? */ + if (value >= 0) { + req->length = value; + req->zero = value < w_length; + value = usb_ep_queue(gadget->ep0, req, GFP_ATOMIC); + if (value < 0) { + DBG(dev, "ep_queue --> %d\n", value); + req->status = 0; + gmidi_setup_complete(gadget->ep0, req); + } + } + + /* device either stalls (value < 0) or reports success */ + return value; +} + +static void gmidi_disconnect(struct usb_gadget *gadget) +{ + struct gmidi_device *dev = get_gadget_data(gadget); + unsigned long flags; + + spin_lock_irqsave(&dev->lock, flags); + gmidi_reset_config(dev); + + /* a more significant application might have some non-usb + * activities to quiesce here, saving resources like power + * or pushing the notification up a network stack. + */ + spin_unlock_irqrestore(&dev->lock, flags); + + /* next we may get setup() calls to enumerate new connections; + * or an unbind() during shutdown (including removing module). + */ +} + +static void /* __init_or_exit */ gmidi_unbind(struct usb_gadget *gadget) +{ + struct gmidi_device *dev = get_gadget_data(gadget); + struct snd_card* card; + + DBG(dev, "unbind\n"); + + card = dev->card; + dev->card = NULL; + if (card) { + snd_card_free(card); + } + + /* we've already been disconnected ... no i/o is active */ + if (dev->req) { + dev->req->length = USB_BUFSIZ; + free_ep_req(gadget->ep0, dev->req); + } + kfree(dev); + set_gadget_data(gadget, NULL); +} + +static int gmidi_snd_free(struct snd_device *device) +{ + return 0; +} + +static void gmidi_transmit_packet(struct usb_request* req, uint8_t p0, + uint8_t p1, uint8_t p2, uint8_t p3) +{ + unsigned length = req->length; + + uint8_t* buf = (uint8_t*)req->buf + length; + buf[0] = p0; + buf[1] = p1; + buf[2] = p2; + buf[3] = p3; + req->length = length + 4; +} + +/* + * Converts MIDI commands to USB MIDI packets. + */ +static void gmidi_transmit_byte(struct usb_request* req, + struct gmidi_in_port* port, uint8_t b) +{ + uint8_t p0 = port->cable; + + if (b >= 0xf8) { + gmidi_transmit_packet(req, p0 | 0x0f, b, 0, 0); + } else if (b >= 0xf0) { + switch (b) { + case 0xf0: + port->data[0] = b; + port->state = STATE_SYSEX_1; + break; + case 0xf1: + case 0xf3: + port->data[0] = b; + port->state = STATE_1PARAM; + break; + case 0xf2: + port->data[0] = b; + port->state = STATE_2PARAM_1; + break; + case 0xf4: + case 0xf5: + port->state = STATE_UNKNOWN; + break; + case 0xf6: + gmidi_transmit_packet(req, p0 | 0x05, 0xf6, 0, 0); + port->state = STATE_UNKNOWN; + break; + case 0xf7: + switch (port->state) { + case STATE_SYSEX_0: + gmidi_transmit_packet(req, + p0 | 0x05, 0xf7, 0, 0); + break; + case STATE_SYSEX_1: + gmidi_transmit_packet(req, + p0 | 0x06, port->data[0], 0xf7, 0); + break; + case STATE_SYSEX_2: + gmidi_transmit_packet(req, + p0 | 0x07, port->data[0], + port->data[1], 0xf7); + break; + } + port->state = STATE_UNKNOWN; + break; + } + } else if (b >= 0x80) { + port->data[0] = b; + if (b >= 0xc0 && b <= 0xdf) + port->state = STATE_1PARAM; + else + port->state = STATE_2PARAM_1; + } else { /* b < 0x80 */ + switch (port->state) { + case STATE_1PARAM: + if (port->data[0] < 0xf0) { + p0 |= port->data[0] >> 4; + } else { + p0 |= 0x02; + port->state = STATE_UNKNOWN; + } + gmidi_transmit_packet(req, p0, port->data[0], b, 0); + break; + case STATE_2PARAM_1: + port->data[1] = b; + port->state = STATE_2PARAM_2; + break; + case STATE_2PARAM_2: + if (port->data[0] < 0xf0) { + p0 |= port->data[0] >> 4; + port->state = STATE_2PARAM_1; + } else { + p0 |= 0x03; + port->state = STATE_UNKNOWN; + } + gmidi_transmit_packet(req, + p0, port->data[0], port->data[1], b); + break; + case STATE_SYSEX_0: + port->data[0] = b; + port->state = STATE_SYSEX_1; + break; + case STATE_SYSEX_1: + port->data[1] = b; + port->state = STATE_SYSEX_2; + break; + case STATE_SYSEX_2: + gmidi_transmit_packet(req, + p0 | 0x04, port->data[0], port->data[1], b); + port->state = STATE_SYSEX_0; + break; + } + } +} + +static void gmidi_transmit(struct gmidi_device* dev, struct usb_request* req) +{ + struct usb_ep* ep = dev->in_ep; + struct gmidi_in_port* port = &dev->in_port; + + if (!ep) { + return; + } + if (!req) { + req = alloc_ep_req(ep, buflen); + } + if (!req) { + ERROR(dev, "gmidi_transmit: alloc_ep_request failed\n"); + return; + } + req->length = 0; + req->complete = gmidi_complete; + + if (port->active) { + while (req->length + 3 < buflen) { + uint8_t b; + if (snd_rawmidi_transmit(dev->in_substream, &b, 1) + != 1) + { + port->active = 0; + break; + } + gmidi_transmit_byte(req, port, b); + } + } + if (req->length > 0) { + usb_ep_queue(ep, req, GFP_ATOMIC); + } else { + free_ep_req(ep, req); + } +} + +static void gmidi_in_tasklet(unsigned long data) +{ + struct gmidi_device* dev = (struct gmidi_device*)data; + + gmidi_transmit(dev, NULL); +} + +static int gmidi_in_open(struct snd_rawmidi_substream *substream) +{ + struct gmidi_device* dev = substream->rmidi->private_data; + + VDBG(dev, "gmidi_in_open\n"); + dev->in_substream = substream; + dev->in_port.state = STATE_UNKNOWN; + return 0; +} + +static int gmidi_in_close(struct snd_rawmidi_substream *substream) +{ + VDBG(dev, "gmidi_in_close\n"); + return 0; +} + +static void gmidi_in_trigger(struct snd_rawmidi_substream *substream, int up) +{ + struct gmidi_device* dev = substream->rmidi->private_data; + + VDBG(dev, "gmidi_in_trigger %d\n", up); + dev->in_port.active = up; + if (up) { + tasklet_hi_schedule(&dev->tasklet); + } +} + +static int gmidi_out_open(struct snd_rawmidi_substream *substream) +{ + struct gmidi_device* dev = substream->rmidi->private_data; + + VDBG(dev, "gmidi_out_open\n"); + dev->out_substream = substream; + return 0; +} + +static int gmidi_out_close(struct snd_rawmidi_substream *substream) +{ + VDBG(dev, "gmidi_out_close\n"); + return 0; +} + +static void gmidi_out_trigger(struct snd_rawmidi_substream *substream, int up) +{ + struct gmidi_device* dev = substream->rmidi->private_data; + + VDBG(dev, "gmidi_out_trigger %d\n", up); + if (up) { + set_bit(substream->number, &dev->out_triggered); + } else { + clear_bit(substream->number, &dev->out_triggered); + } +} + +static struct snd_rawmidi_ops gmidi_in_ops = { + .open = gmidi_in_open, + .close = gmidi_in_close, + .trigger = gmidi_in_trigger, +}; + +static struct snd_rawmidi_ops gmidi_out_ops = { + .open = gmidi_out_open, + .close = gmidi_out_close, + .trigger = gmidi_out_trigger +}; + +/* register as a sound "card" */ +static int gmidi_register_card(struct gmidi_device *dev) +{ + struct snd_card *card; + struct snd_rawmidi *rmidi; + int err; + int out_ports = 1; + int in_ports = 1; + static struct snd_device_ops ops = { + .dev_free = gmidi_snd_free, + }; + + card = snd_card_new(index, id, THIS_MODULE, 0); + if (!card) { + ERROR(dev, "snd_card_new failed\n"); + err = -ENOMEM; + goto fail; + } + dev->card = card; + + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, dev, &ops); + if (err < 0) { + ERROR(dev, "snd_device_new failed: error %d\n", err); + goto fail; + } + + strcpy(card->driver, longname); + strcpy(card->longname, longname); + strcpy(card->shortname, shortname); + + /* Set up rawmidi */ + dev->in_port.dev = dev; + dev->in_port.active = 0; + snd_component_add(card, "MIDI"); + err = snd_rawmidi_new(card, "USB MIDI Gadget", 0, + out_ports, in_ports, &rmidi); + if (err < 0) { + ERROR(dev, "snd_rawmidi_new failed: error %d\n", err); + goto fail; + } + dev->rmidi = rmidi; + strcpy(rmidi->name, card->shortname); + rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | + SNDRV_RAWMIDI_INFO_INPUT | + SNDRV_RAWMIDI_INFO_DUPLEX; + rmidi->private_data = dev; + + /* Yes, rawmidi OUTPUT = USB IN, and rawmidi INPUT = USB OUT. + It's an upside-down world being a gadget. */ + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &gmidi_in_ops); + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &gmidi_out_ops); + + snd_card_set_dev(card, &dev->gadget->dev); + + /* register it - we're ready to go */ + err = snd_card_register(card); + if (err < 0) { + ERROR(dev, "snd_card_register failed\n"); + goto fail; + } + + VDBG(dev, "gmidi_register_card finished ok\n"); + return 0; + +fail: + if (dev->card) { + snd_card_free(dev->card); + dev->card = NULL; + } + return err; +} + +/* + * Creates an output endpoint, and initializes output ports. + */ +static int __devinit gmidi_bind(struct usb_gadget *gadget) +{ + struct gmidi_device *dev; + struct usb_ep *in_ep, *out_ep; + int gcnum, err = 0; + + /* support optional vendor/distro customization */ + if (idVendor) { + if (!idProduct) { + printk(KERN_ERR "idVendor needs idProduct!\n"); + return -ENODEV; + } + device_desc.idVendor = cpu_to_le16(idVendor); + device_desc.idProduct = cpu_to_le16(idProduct); + if (bcdDevice) { + device_desc.bcdDevice = cpu_to_le16(bcdDevice); + } + } + if (iManufacturer) { + strlcpy(manufacturer, iManufacturer, sizeof(manufacturer)); + } else { + snprintf(manufacturer, sizeof(manufacturer), "%s %s with %s", + system_utsname.sysname, system_utsname.release, + gadget->name); + } + if (iProduct) { + strlcpy(product_desc, iProduct, sizeof(product_desc)); + } + if (iSerialNumber) { + device_desc.iSerialNumber = STRING_SERIAL, + strlcpy(serial_number, iSerialNumber, sizeof(serial_number)); + } + + /* Bulk-only drivers like this one SHOULD be able to + * autoconfigure on any sane usb controller driver, + * but there may also be important quirks to address. + */ + usb_ep_autoconfig_reset(gadget); + in_ep = usb_ep_autoconfig(gadget, &bulk_in_desc); + if (!in_ep) { +autoconf_fail: + printk(KERN_ERR "%s: can't autoconfigure on %s\n", + shortname, gadget->name); + return -ENODEV; + } + EP_IN_NAME = in_ep->name; + in_ep->driver_data = in_ep; /* claim */ + + out_ep = usb_ep_autoconfig(gadget, &bulk_out_desc); + if (!out_ep) { + goto autoconf_fail; + } + EP_OUT_NAME = out_ep->name; + out_ep->driver_data = out_ep; /* claim */ + + gcnum = usb_gadget_controller_number(gadget); + if (gcnum >= 0) { + device_desc.bcdDevice = cpu_to_le16(0x0200 + gcnum); + } else { + /* gmidi is so simple (no altsettings) that + * it SHOULD NOT have problems with bulk-capable hardware. + * so warn about unrecognized controllers, don't panic. + */ + printk(KERN_WARNING "%s: controller '%s' not recognized\n", + shortname, gadget->name); + device_desc.bcdDevice = __constant_cpu_to_le16(0x9999); + } + + + /* ok, we made sense of the hardware ... */ + dev = kzalloc(sizeof(*dev), SLAB_KERNEL); + if (!dev) { + return -ENOMEM; + } + spin_lock_init(&dev->lock); + dev->gadget = gadget; + dev->in_ep = in_ep; + dev->out_ep = out_ep; + set_gadget_data(gadget, dev); + tasklet_init(&dev->tasklet, gmidi_in_tasklet, (unsigned long)dev); + + /* preallocate control response and buffer */ + dev->req = usb_ep_alloc_request(gadget->ep0, GFP_KERNEL); + if (!dev->req) { + err = -ENOMEM; + goto fail; + } + dev->req->buf = usb_ep_alloc_buffer(gadget->ep0, USB_BUFSIZ, + &dev->req->dma, GFP_KERNEL); + if (!dev->req->buf) { + err = -ENOMEM; + goto fail; + } + + dev->req->complete = gmidi_setup_complete; + + device_desc.bMaxPacketSize0 = gadget->ep0->maxpacket; + + gadget->ep0->driver_data = dev; + + INFO(dev, "%s, version: " DRIVER_VERSION "\n", longname); + INFO(dev, "using %s, OUT %s IN %s\n", gadget->name, + EP_OUT_NAME, EP_IN_NAME); + + /* register as an ALSA sound card */ + err = gmidi_register_card(dev); + if (err < 0) { + goto fail; + } + + VDBG(dev, "gmidi_bind finished ok\n"); + return 0; + +fail: + gmidi_unbind(gadget); + return err; +} + + +static void gmidi_suspend(struct usb_gadget *gadget) +{ + struct gmidi_device *dev = get_gadget_data(gadget); + + if (gadget->speed == USB_SPEED_UNKNOWN) { + return; + } + + DBG(dev, "suspend\n"); +} + +static void gmidi_resume(struct usb_gadget *gadget) +{ + struct gmidi_device *dev = get_gadget_data(gadget); + + DBG(dev, "resume\n"); +} + + +static struct usb_gadget_driver gmidi_driver = { + .speed = USB_SPEED_FULL, + .function = (char *)longname, + .bind = gmidi_bind, + .unbind = __exit_p(gmidi_unbind), + + .setup = gmidi_setup, + .disconnect = gmidi_disconnect, + + .suspend = gmidi_suspend, + .resume = gmidi_resume, + + .driver = { + .name = (char *)shortname, + .owner = THIS_MODULE, + }, +}; + +static int __init gmidi_init(void) +{ + return usb_gadget_register_driver(&gmidi_driver); +} +module_init(gmidi_init); + +static void __exit gmidi_cleanup(void) +{ + usb_gadget_unregister_driver(&gmidi_driver); +} +module_exit(gmidi_cleanup); +
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 3bdc5e3..4655522 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c
@@ -32,6 +32,7 @@ #include <linux/compiler.h> #include <asm/uaccess.h> #include <linux/slab.h> +#include <linux/poll.h> #include <linux/device.h> #include <linux/moduleparam.h> @@ -222,7 +223,6 @@ /* needs no more cleanup */ BUG_ON (!list_empty (&data->epfiles)); BUG_ON (waitqueue_active (&data->wait)); - BUG_ON (down_trylock (&data->lock) != 0); kfree (data); } @@ -477,6 +477,10 @@ ep_release (struct inode *inode, struct file *fd) { struct ep_data *data = fd->private_data; + int value; + + if ((value = down_interruptible(&data->lock)) < 0) + return value; /* clean up if this can be reopened */ if (data->state != STATE_EP_UNBOUND) { @@ -485,6 +489,7 @@ data->hs_desc.bDescriptorType = 0; usb_ep_disable(data->ep); } + up (&data->lock); put_ep (data); return 0; } @@ -709,7 +714,7 @@ /*----------------------------------------------------------------------*/ /* used after endpoint configuration */ -static struct file_operations ep_io_operations = { +static const struct file_operations ep_io_operations = { .owner = THIS_MODULE, .llseek = no_llseek, @@ -741,7 +746,7 @@ struct ep_data *data = fd->private_data; struct usb_ep *ep; u32 tag; - int value; + int value, length = len; if ((value = down_interruptible (&data->lock)) < 0) return value; @@ -792,7 +797,6 @@ goto fail0; } } - value = len; spin_lock_irq (&data->dev->lock); if (data->dev->state == STATE_DEV_UNBOUND) { @@ -822,8 +826,10 @@ data->name); data->state = STATE_EP_DEFER_ENABLE; } - if (value == 0) + if (value == 0) { fd->f_op = &ep_io_operations; + value = length; + } gone: spin_unlock_irq (&data->dev->lock); if (value < 0) { @@ -844,7 +850,7 @@ static int ep_open (struct inode *inode, struct file *fd) { - struct ep_data *data = inode->u.generic_ip; + struct ep_data *data = inode->i_private; int value = -EBUSY; if (down_interruptible (&data->lock) != 0) @@ -867,7 +873,7 @@ } /* used before endpoint configuration */ -static struct file_operations ep_config_operations = { +static const struct file_operations ep_config_operations = { .owner = THIS_MODULE, .llseek = no_llseek, @@ -1009,7 +1015,7 @@ else { len = min (len, (size_t)dev->req->actual); // FIXME don't call this with the spinlock held ... - if (copy_to_user (buf, &dev->req->buf, len)) + if (copy_to_user (buf, dev->req->buf, len)) retval = -EFAULT; clean_req (dev->gadget->ep0, dev->req); /* NOTE userspace can't yet choose to stall */ @@ -1229,6 +1235,35 @@ return 0; } +static unsigned int +ep0_poll (struct file *fd, poll_table *wait) +{ + struct dev_data *dev = fd->private_data; + int mask = 0; + + poll_wait(fd, &dev->wait, wait); + + spin_lock_irq (&dev->lock); + + /* report fd mode change before acting on it */ + if (dev->setup_abort) { + dev->setup_abort = 0; + mask = POLLHUP; + goto out; + } + + if (dev->state == STATE_SETUP) { + if (dev->setup_in || dev->setup_can_stall) + mask = POLLOUT; + } else { + if (dev->ev_next != 0) + mask = POLLIN; + } +out: + spin_unlock_irq(&dev->lock); + return mask; +} + static int dev_ioctl (struct inode *inode, struct file *fd, unsigned code, unsigned long value) { @@ -1241,14 +1276,14 @@ } /* used after device configuration */ -static struct file_operations ep0_io_operations = { +static const struct file_operations ep0_io_operations = { .owner = THIS_MODULE, .llseek = no_llseek, .read = ep0_read, .write = ep0_write, .fasync = ep0_fasync, - // .poll = ep0_poll, + .poll = ep0_poll, .ioctl = dev_ioctl, .release = dev_release, }; @@ -1696,16 +1731,17 @@ { struct dev_data *dev = get_gadget_data (gadget); + spin_lock (&dev->lock); if (dev->state == STATE_UNCONNECTED) { DBG (dev, "already unconnected\n"); - return; + goto exit; } dev->state = STATE_UNCONNECTED; INFO (dev, "disconnected\n"); - spin_lock (&dev->lock); next_event (dev, GADGETFS_DISCONNECT); ep0_readable (dev); +exit: spin_unlock (&dev->lock); } @@ -1909,7 +1945,7 @@ static int dev_open (struct inode *inode, struct file *fd) { - struct dev_data *dev = inode->u.generic_ip; + struct dev_data *dev = inode->i_private; int value = -EBUSY; if (dev->state == STATE_DEV_DISABLED) { @@ -1922,7 +1958,7 @@ return value; } -static struct file_operations dev_init_operations = { +static const struct file_operations dev_init_operations = { .owner = THIS_MODULE, .llseek = no_llseek, @@ -1966,11 +2002,10 @@ inode->i_mode = mode; inode->i_uid = default_uid; inode->i_gid = default_gid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; - inode->u.generic_ip = data; + inode->i_private = data; inode->i_fop = fops; } return inode;
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index 0924323..3bda37f 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c
@@ -2,7 +2,7 @@ * Driver for the PLX NET2280 USB device controller. * Specs and errata are available from <http://www.plxtech.com>. * - * PLX Technology Inc. (formerly NetChip Technology) supported the + * PLX Technology Inc. (formerly NetChip Technology) supported the * development of this driver. * * @@ -26,7 +26,8 @@ * Copyright (C) 2003 David Brownell * Copyright (C) 2003-2005 PLX Technology, Inc. * - * Modified Seth Levy 2005 PLX Technology, Inc. to provide compatibility with 2282 chip + * Modified Seth Levy 2005 PLX Technology, Inc. to provide compatibility + * with 2282 chip * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -85,7 +86,7 @@ static const char driver_desc [] = DRIVER_DESC; static const char ep0name [] = "ep0"; -static const char *ep_name [] = { +static const char *const ep_name [] = { ep0name, "ep-a", "ep-b", "ep-c", "ep-d", "ep-e", "ep-f", @@ -225,7 +226,9 @@ if (!ep->is_in) writel ((1 << SET_NAK_OUT_PACKETS), &ep->regs->ep_rsp); else if (dev->pdev->device != 0x2280) { - /* Added for 2282, Don't use nak packets on an in endpoint, this was ignored on 2280 */ + /* Added for 2282, Don't use nak packets on an in endpoint, + * this was ignored on 2280 + */ writel ((1 << CLEAR_NAK_OUT_PACKETS) | (1 << CLEAR_NAK_OUT_PACKETS_MODE), &ep->regs->ep_rsp); } @@ -288,7 +291,7 @@ return -ETIMEDOUT; } -static struct usb_ep_ops net2280_ep_ops; +static const struct usb_ep_ops net2280_ep_ops; static void ep_reset (struct net2280_regs __iomem *regs, struct net2280_ep *ep) { @@ -449,34 +452,15 @@ /*-------------------------------------------------------------------------*/ -#undef USE_KMALLOC - -/* many common platforms have dma-coherent caches, which means that it's - * safe to use kmalloc() memory for all i/o buffers without using any - * cache flushing calls. (unless you're trying to share cache lines - * between dma and non-dma activities, which is a slow idea in any case.) +/* + * dma-coherent memory allocation (for dma-capable endpoints) * - * other platforms need more care, with 2.5 having a moderately general - * solution (which falls down for allocations smaller than one page) - * that improves significantly on the 2.4 PCI allocators by removing - * the restriction that memory never be freed in_interrupt(). + * NOTE: the dma_*_coherent() API calls suck. Most implementations are + * (a) page-oriented, so small buffers lose big; and (b) asymmetric with + * respect to calls with irqs disabled: alloc is safe, free is not. + * We currently work around (b), but not (a). */ -#if defined(CONFIG_X86) -#define USE_KMALLOC -#elif defined(CONFIG_PPC) && !defined(CONFIG_NOT_COHERENT_CACHE) -#define USE_KMALLOC - -#elif defined(CONFIG_MIPS) && !defined(CONFIG_DMA_NONCOHERENT) -#define USE_KMALLOC - -/* FIXME there are other cases, including an x86-64 one ... */ -#endif - -/* allocating buffers this way eliminates dma mapping overhead, which - * on some platforms will mean eliminating a per-io buffer copy. with - * some kinds of system caches, further tweaks may still be needed. - */ static void * net2280_alloc_buffer ( struct usb_ep *_ep, @@ -493,43 +477,71 @@ return NULL; *dma = DMA_ADDR_INVALID; -#if defined(USE_KMALLOC) - retval = kmalloc(bytes, gfp_flags); - if (retval) - *dma = virt_to_phys(retval); -#else - if (ep->dma) { - /* the main problem with this call is that it wastes memory - * on typical 1/N page allocations: it allocates 1-N pages. - */ -#warning Using dma_alloc_coherent even with buffers smaller than a page. + if (ep->dma) retval = dma_alloc_coherent(&ep->dev->pdev->dev, bytes, dma, gfp_flags); - } else + else retval = kmalloc(bytes, gfp_flags); -#endif return retval; } +static DEFINE_SPINLOCK(buflock); +static LIST_HEAD(buffers); + +struct free_record { + struct list_head list; + struct device *dev; + unsigned bytes; + dma_addr_t dma; +}; + +static void do_free(unsigned long ignored) +{ + spin_lock_irq(&buflock); + while (!list_empty(&buffers)) { + struct free_record *buf; + + buf = list_entry(buffers.next, struct free_record, list); + list_del(&buf->list); + spin_unlock_irq(&buflock); + + dma_free_coherent(buf->dev, buf->bytes, buf, buf->dma); + + spin_lock_irq(&buflock); + } + spin_unlock_irq(&buflock); +} + +static DECLARE_TASKLET(deferred_free, do_free, 0); + static void net2280_free_buffer ( struct usb_ep *_ep, - void *buf, + void *address, dma_addr_t dma, unsigned bytes ) { /* free memory into the right allocator */ -#ifndef USE_KMALLOC if (dma != DMA_ADDR_INVALID) { struct net2280_ep *ep; + struct free_record *buf = address; + unsigned long flags; ep = container_of(_ep, struct net2280_ep, ep); if (!_ep) return; - dma_free_coherent(&ep->dev->pdev->dev, bytes, buf, dma); + + ep = container_of (_ep, struct net2280_ep, ep); + buf->dev = &ep->dev->pdev->dev; + buf->bytes = bytes; + buf->dma = dma; + + spin_lock_irqsave(&buflock, flags); + list_add_tail(&buf->list, &buffers); + tasklet_schedule(&deferred_free); + spin_unlock_irqrestore(&buflock, flags); } else -#endif - kfree (buf); + kfree (address); } /*-------------------------------------------------------------------------*/ @@ -737,7 +749,8 @@ */ if (ep->is_in) dmacount |= (1 << DMA_DIRECTION); - if ((!ep->is_in && (dmacount % ep->ep.maxpacket) != 0) || ep->dev->pdev->device != 0x2280) + if ((!ep->is_in && (dmacount % ep->ep.maxpacket) != 0) + || ep->dev->pdev->device != 0x2280) dmacount |= (1 << END_OF_CHAIN); req->valid = valid; @@ -812,7 +825,7 @@ /* previous OUT packet might have been short */ if (!ep->is_in && ((tmp = readl (&ep->regs->ep_stat)) - & (1 << NAK_OUT_PACKETS)) != 0) { + & (1 << NAK_OUT_PACKETS)) != 0) { writel ((1 << SHORT_PACKET_TRANSFERRED_INTERRUPT), &ep->regs->ep_stat); @@ -1373,7 +1386,7 @@ (void) readl (&ep->regs->ep_rsp); } -static struct usb_ep_ops net2280_ep_ops = { +static const struct usb_ep_ops net2280_ep_ops = { .enable = net2280_enable, .disable = net2280_disable, @@ -1631,7 +1644,7 @@ } /* Indexed Registers */ - // none yet + // none yet /* Statistics */ t = scnprintf (next, size, "\nirqs: "); @@ -1691,11 +1704,11 @@ ({ char *val; switch (d->bmAttributes & 0x03) { case USB_ENDPOINT_XFER_BULK: - val = "bulk"; break; + val = "bulk"; break; case USB_ENDPOINT_XFER_INT: - val = "intr"; break; + val = "intr"; break; default: - val = "iso"; break; + val = "iso"; break; }; val; }), le16_to_cpu (d->wMaxPacketSize) & 0x1fff, ep->dma ? "dma" : "pio", ep->fifo_size @@ -1808,8 +1821,8 @@ * net2280_set_fifo_mode - change allocation of fifo buffers * @gadget: access to the net2280 device that will be updated * @mode: 0 for default, four 1kB buffers (ep-a through ep-d); - * 1 for two 2kB buffers (ep-a and ep-b only); - * 2 for one 2kB buffer (ep-a) and two 1kB ones (ep-b, ep-c). + * 1 for two 2kB buffers (ep-a and ep-b only); + * 2 for one 2kB buffer (ep-a) and two 1kB ones (ep-b, ep-c). * * returns zero on success, else negative errno. when this succeeds, * the contents of gadget->ep_list may have changed. @@ -2241,7 +2254,8 @@ req->td->dmacount = 0; t = readl (&ep->regs->ep_avail); dma_done (ep, req, count, - (ep->out_overflow || t) ? -EOVERFLOW : 0); + (ep->out_overflow || t) + ? -EOVERFLOW : 0); } /* also flush to prevent erratum 0106 trouble */ @@ -2411,7 +2425,7 @@ , &ep->regs->ep_stat); u.raw [0] = readl (&dev->usb->setup0123); u.raw [1] = readl (&dev->usb->setup4567); - + cpu_to_le32s (&u.raw [0]); cpu_to_le32s (&u.raw [1]); @@ -2578,14 +2592,16 @@ /* VBUS disconnect is indicated by VBUS_PIN and VBUS_INTERRUPT set. * Root Port Reset is indicated by ROOT_PORT_RESET_INTERRRUPT set and - * both HIGH_SPEED and FULL_SPEED clear (as ROOT_PORT_RESET_INTERRUPT + * both HIGH_SPEED and FULL_SPEED clear (as ROOT_PORT_RESET_INTERRUPT * only indicates a change in the reset state). */ if (stat & tmp) { writel (tmp, &dev->regs->irqstat1); - if ((((stat & (1 << ROOT_PORT_RESET_INTERRUPT)) && - ((readl (&dev->usb->usbstat) & mask) == 0)) - || ((readl (&dev->usb->usbctl) & (1 << VBUS_PIN)) == 0) + if ((((stat & (1 << ROOT_PORT_RESET_INTERRUPT)) + && ((readl (&dev->usb->usbstat) & mask) + == 0)) + || ((readl (&dev->usb->usbctl) + & (1 << VBUS_PIN)) == 0) ) && ( dev->gadget.speed != USB_SPEED_UNKNOWN)) { DEBUG (dev, "disconnect %s\n", dev->driver->driver.name); @@ -2852,7 +2868,7 @@ /* now all the pci goodies ... */ if (pci_enable_device (pdev) < 0) { - retval = -ENODEV; + retval = -ENODEV; goto done; } dev->enabled = 1; @@ -2870,6 +2886,10 @@ } dev->region = 1; + /* FIXME provide firmware download interface to put + * 8051 code into the chip, e.g. to turn on PCI PM. + */ + base = ioremap_nocache (resource, len); if (base == NULL) { DEBUG (dev, "can't map memory\n"); @@ -2984,16 +3004,16 @@ /*-------------------------------------------------------------------------*/ -static struct pci_device_id pci_ids [] = { { - .class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe), - .class_mask = ~0, +static const struct pci_device_id pci_ids [] = { { + .class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe), + .class_mask = ~0, .vendor = 0x17cc, .device = 0x2280, .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, }, { - .class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe), - .class_mask = ~0, + .class = ((PCI_CLASS_SERIAL_USB << 8) | 0xfe), + .class_mask = ~0, .vendor = 0x17cc, .device = 0x2282, .subvendor = PCI_ANY_ID,
diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index 2de9748..0a64504 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c
@@ -40,7 +40,7 @@ #include <linux/platform_device.h> #include <linux/usb_ch9.h> #include <linux/usb_gadget.h> -#include <linux/usb_otg.h> +#include <linux/usb/otg.h> #include <linux/dma-mapping.h> #include <asm/byteorder.h> @@ -2437,7 +2437,7 @@ return single_open(file, proc_udc_show, NULL); } -static struct file_operations proc_ops = { +static const struct file_operations proc_ops = { .open = proc_udc_open, .read = seq_read, .llseek = seq_lseek,
diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c index fff027d..f1adcf8 100644 --- a/drivers/usb/gadget/pxa2xx_udc.c +++ b/drivers/usb/gadget/pxa2xx_udc.c
@@ -150,6 +150,39 @@ static void pxa2xx_ep_fifo_flush (struct usb_ep *ep); static void nuke (struct pxa2xx_ep *, int status); +/* one GPIO should be used to detect VBUS from the host */ +static int is_vbus_present(void) +{ + struct pxa2xx_udc_mach_info *mach = the_controller->mach; + + if (mach->gpio_vbus) + return pxa_gpio_get(mach->gpio_vbus); + if (mach->udc_is_connected) + return mach->udc_is_connected(); + return 1; +} + +/* one GPIO should control a D+ pullup, so host sees this device (or not) */ +static void pullup_off(void) +{ + struct pxa2xx_udc_mach_info *mach = the_controller->mach; + + if (mach->gpio_pullup) + pxa_gpio_set(mach->gpio_pullup, 0); + else if (mach->udc_command) + mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT); +} + +static void pullup_on(void) +{ + struct pxa2xx_udc_mach_info *mach = the_controller->mach; + + if (mach->gpio_pullup) + pxa_gpio_set(mach->gpio_pullup, 1); + else if (mach->udc_command) + mach->udc_command(PXA2XX_UDC_CMD_CONNECT); +} + static void pio_irq_enable(int bEndpointAddress) { bEndpointAddress &= 0xf; @@ -1721,6 +1754,16 @@ #endif +static irqreturn_t +udc_vbus_irq(int irq, void *_dev, struct pt_regs *r) +{ + struct pxa2xx_udc *dev = _dev; + int vbus = pxa_gpio_get(dev->mach->gpio_vbus); + + pxa2xx_udc_vbus_session(&dev->gadget, vbus); + return IRQ_HANDLED; +} + /*-------------------------------------------------------------------------*/ @@ -2438,7 +2481,7 @@ static int __init pxa2xx_udc_probe(struct platform_device *pdev) { struct pxa2xx_udc *dev = &memory; - int retval, out_dma = 1; + int retval, out_dma = 1, vbus_irq; u32 chiprev; /* insist on Intel/ARM/XScale */ @@ -2502,6 +2545,16 @@ /* other non-static parts of init */ dev->dev = &pdev->dev; dev->mach = pdev->dev.platform_data; + if (dev->mach->gpio_vbus) { + vbus_irq = IRQ_GPIO(dev->mach->gpio_vbus & GPIO_MD_MASK_NR); + pxa_gpio_mode((dev->mach->gpio_vbus & GPIO_MD_MASK_NR) + | GPIO_IN); + set_irq_type(vbus_irq, IRQT_BOTHEDGE); + } else + vbus_irq = 0; + if (dev->mach->gpio_pullup) + pxa_gpio_mode((dev->mach->gpio_pullup & GPIO_MD_MASK_NR) + | GPIO_OUT | GPIO_DFLT_LOW); init_timer(&dev->timer); dev->timer.function = udc_watchdog; @@ -2557,8 +2610,19 @@ HEX_DISPLAY(dev->stats.irqs); LUB_DISC_BLNK_LED &= 0xff; #endif - } + } else #endif + if (vbus_irq) { + retval = request_irq(vbus_irq, udc_vbus_irq, + SA_INTERRUPT | SA_SAMPLE_RANDOM, + driver_name, dev); + if (retval != 0) { + printk(KERN_ERR "%s: can't get irq %i, err %d\n", + driver_name, vbus_irq, retval); + free_irq(IRQ_USB, dev); + return -EBUSY; + } + } create_proc_files(); return 0; @@ -2587,6 +2651,8 @@ free_irq(LUBBOCK_USB_IRQ, dev); } #endif + if (dev->mach->gpio_vbus) + free_irq(IRQ_GPIO(dev->mach->gpio_vbus), dev); platform_set_drvdata(pdev, NULL); the_controller = NULL; return 0;
diff --git a/drivers/usb/gadget/pxa2xx_udc.h b/drivers/usb/gadget/pxa2xx_udc.h index 19a883f..8e598c8 100644 --- a/drivers/usb/gadget/pxa2xx_udc.h +++ b/drivers/usb/gadget/pxa2xx_udc.h
@@ -177,27 +177,19 @@ static struct pxa2xx_udc *the_controller; -/* one GPIO should be used to detect VBUS from the host */ -static inline int is_vbus_present(void) +static inline int pxa_gpio_get(unsigned gpio) { - if (!the_controller->mach->udc_is_connected) - return 1; - return the_controller->mach->udc_is_connected(); + return (GPLR(gpio) & GPIO_bit(gpio)) != 0; } -/* one GPIO should control a D+ pullup, so host sees this device (or not) */ -static inline void pullup_off(void) +static inline void pxa_gpio_set(unsigned gpio, int is_on) { - if (!the_controller->mach->udc_command) - return; - the_controller->mach->udc_command(PXA2XX_UDC_CMD_DISCONNECT); -} + int mask = GPIO_bit(gpio); -static inline void pullup_on(void) -{ - if (!the_controller->mach->udc_command) - return; - the_controller->mach->udc_command(PXA2XX_UDC_CMD_CONNECT); + if (is_on) + GPSR(gpio) = mask; + else + GPCR(gpio) = mask; } /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index e762aa1..b893e31 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c
@@ -1120,12 +1120,15 @@ gs_debug_level(3, "gs_send: len=%d, 0x%2.2x 0x%2.2x 0x%2.2x ...\n", len, *((unsigned char *)req->buf), *((unsigned char *)req->buf+1), *((unsigned char *)req->buf+2)); list_del(&req_entry->re_entry); req->length = len; + spin_unlock_irqrestore(&dev->dev_lock, flags); if ((ret=usb_ep_queue(ep, req, GFP_ATOMIC))) { printk(KERN_ERR "gs_send: cannot queue read request, ret=%d\n", ret); + spin_lock_irqsave(&dev->dev_lock, flags); break; } + spin_lock_irqsave(&dev->dev_lock, flags); } else { break; }
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index b93d71d..cf10cbc 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig
@@ -83,6 +83,7 @@ tristate "OHCI HCD support" depends on USB && USB_ARCH_HAS_OHCI select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 + select I2C if ARCH_PNX4008 ---help--- The Open Host Controller Interface (OHCI) is a standard for accessing USB 1.1 host controller hardware. It does more in hardware than Intel's @@ -141,6 +142,34 @@ To compile this driver as a module, choose M here: the module will be called uhci-hcd. +config USB_U132_HCD + tristate "Elan U132 Adapter Host Controller" + depends on USB && USB_FTDI_ELAN + default M + help + The U132 adapter is a USB to CardBus adapter specifically designed + for PC cards that contain an OHCI host controller. Typical PC cards + are the Orange Mobile 3G Option GlobeTrotter Fusion card. The U132 + adapter will *NOT* work with PC cards that do not contain an OHCI + controller. + + For those PC cards that contain multiple OHCI controllers only ther + first one is used. + + The driver consists of two modules, the "ftdi-elan" module is a + USB client driver that interfaces to the FTDI chip within ELAN's + USB-to-PCMCIA adapter, and this "u132-hcd" module is a USB host + controller driver that talks to the OHCI controller within the + CardBus cards that are inserted in the U132 adapter. + + This driver has been tested with a CardBus OHCI USB adapter, and + worked with a USB PEN Drive inserted into the first USB port of + the PCCARD. A rather pointless thing to do, but useful for testing. + + It is safe to say M here. + + See also <http://www.elandigitalsystems.com/support/ufaq/u132linux.php> + config USB_SL811_HCD tristate "SL811HS HCD support" depends on USB
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index e3020f4b..a2e58c8 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile
@@ -14,4 +14,5 @@ obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o obj-$(CONFIG_USB_SL811_HCD) += sl811-hcd.o obj-$(CONFIG_USB_SL811_CS) += sl811_cs.o +obj-$(CONFIG_USB_U132_HCD) += u132-hcd.o obj-$(CONFIG_ETRAX_ARCH_V10) += hc_crisv10.o
diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c index 26ed757..5d1b12a 100644 --- a/drivers/usb/host/ehci-au1xxx.c +++ b/drivers/usb/host/ehci-au1xxx.c
@@ -200,6 +200,7 @@ .reset = ehci_init, .start = ehci_run, .stop = ehci_stop, + .shutdown = ehci_shutdown, /* * managing i/o requests and associated device resources @@ -268,6 +269,7 @@ static struct platform_driver ehci_hcd_au1xxx_driver = { .probe = ehci_hcd_au1xxx_drv_probe, .remove = ehci_hcd_au1xxx_drv_remove, + .shutdown = usb_hcd_platform_shutdown, /*.suspend = ehci_hcd_au1xxx_drv_suspend, */ /*.resume = ehci_hcd_au1xxx_drv_resume, */ .driver = {
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 65ac9fe..23b95b2 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c
@@ -1,6 +1,6 @@ /* * Copyright (c) 2001-2002 by David Brownell - * + * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your @@ -65,7 +65,7 @@ for (i = 0; i < HCS_N_PORTS (params); i++) { // FIXME MIPS won't readb() ... byte = readb (&ehci->caps->portroute[(i>>1)]); - sprintf(tmp, "%d ", + sprintf(tmp, "%d ", ((i & 0x1) ? ((byte)&0xf) : ((byte>>4)&0xf))); strcat(buf, tmp); } @@ -141,12 +141,12 @@ } static void __attribute__((__unused__)) -dbg_itd (const char *label, struct ehci_hcd *ehci, struct ehci_itd *itd) +dbg_itd (const char *label, struct ehci_hcd *ehci, struct ehci_itd *itd) { ehci_dbg (ehci, "%s [%d] itd %p, next %08x, urb %p\n", label, itd->frame, itd, le32_to_cpu(itd->hw_next), itd->urb); ehci_dbg (ehci, - " trans: %08x %08x %08x %08x %08x %08x %08x %08x\n", + " trans: %08x %08x %08x %08x %08x %08x %08x %08x\n", le32_to_cpu(itd->hw_transaction[0]), le32_to_cpu(itd->hw_transaction[1]), le32_to_cpu(itd->hw_transaction[2]), @@ -156,7 +156,7 @@ le32_to_cpu(itd->hw_transaction[6]), le32_to_cpu(itd->hw_transaction[7])); ehci_dbg (ehci, - " buf: %08x %08x %08x %08x %08x %08x %08x\n", + " buf: %08x %08x %08x %08x %08x %08x %08x\n", le32_to_cpu(itd->hw_bufp[0]), le32_to_cpu(itd->hw_bufp[1]), le32_to_cpu(itd->hw_bufp[2]), @@ -171,12 +171,12 @@ } static void __attribute__((__unused__)) -dbg_sitd (const char *label, struct ehci_hcd *ehci, struct ehci_sitd *sitd) +dbg_sitd (const char *label, struct ehci_hcd *ehci, struct ehci_sitd *sitd) { ehci_dbg (ehci, "%s [%d] sitd %p, next %08x, urb %p\n", label, sitd->frame, sitd, le32_to_cpu(sitd->hw_next), sitd->urb); ehci_dbg (ehci, - " addr %08x sched %04x result %08x buf %08x %08x\n", + " addr %08x sched %04x result %08x buf %08x %08x\n", le32_to_cpu(sitd->hw_fullspeed_ep), le32_to_cpu(sitd->hw_uframe), le32_to_cpu(sitd->hw_results), @@ -451,7 +451,7 @@ *buf = 0; bus = class_get_devdata(class_dev); - hcd = bus->hcpriv; + hcd = bus_to_hcd(bus); ehci = hcd_to_ehci (hcd); next = buf; size = PAGE_SIZE; @@ -497,7 +497,7 @@ seen_count = 0; bus = class_get_devdata(class_dev); - hcd = bus->hcpriv; + hcd = bus_to_hcd(bus); ehci = hcd_to_ehci (hcd); next = buf; size = PAGE_SIZE; @@ -634,7 +634,7 @@ static char label [] = ""; bus = class_get_devdata(class_dev); - hcd = bus->hcpriv; + hcd = bus_to_hcd(bus); ehci = hcd_to_ehci (hcd); next = buf; size = PAGE_SIZE; @@ -754,9 +754,7 @@ } if (ehci->reclaim) { - temp = scnprintf (next, size, "reclaim qh %p%s\n", - ehci->reclaim, - ehci->reclaim_ready ? " ready" : ""); + temp = scnprintf (next, size, "reclaim qh %p\n", ehci->reclaim); size -= temp; next += temp; } @@ -785,10 +783,11 @@ static inline void create_debug_files (struct ehci_hcd *ehci) { struct class_device *cldev = ehci_to_hcd(ehci)->self.class_dev; + int retval; - class_device_create_file(cldev, &class_device_attr_async); - class_device_create_file(cldev, &class_device_attr_periodic); - class_device_create_file(cldev, &class_device_attr_registers); + retval = class_device_create_file(cldev, &class_device_attr_async); + retval = class_device_create_file(cldev, &class_device_attr_periodic); + retval = class_device_create_file(cldev, &class_device_attr_registers); } static inline void remove_debug_files (struct ehci_hcd *ehci)
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index d030516..1a915e9 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c
@@ -285,6 +285,7 @@ .resume = ehci_bus_resume, #endif .stop = ehci_stop, + .shutdown = ehci_shutdown, /* * managing i/o requests and associated device resources @@ -329,6 +330,7 @@ static struct platform_driver ehci_fsl_driver = { .probe = ehci_fsl_drv_probe, .remove = ehci_fsl_drv_remove, + .shutdown = usb_hcd_platform_shutdown, .driver = { .name = "fsl-ehci", },
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index d63177a..5ac9185 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c
@@ -1,6 +1,6 @@ /* * Copyright (c) 2000-2004 by David Brownell - * + * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your @@ -70,7 +70,7 @@ * 2002-08-06 Handling for bulk and interrupt transfers is mostly shared; * only scheduling is different, no arbitrary limitations. * 2002-07-25 Sanity check PCI reads, mostly for better cardbus support, - * clean up HC run state handshaking. + * clean up HC run state handshaking. * 2002-05-24 Preliminary FS/LS interrupts, using scheduling shortcuts * 2002-05-11 Clear TT errors for FS/LS ctrl/bulk. Fill in some other * missing pieces: enabling 64bit dma, handoff from BIOS/SMM. @@ -111,7 +111,7 @@ #define EHCI_TUNE_MULT_TT 1 #define EHCI_TUNE_FLS 2 /* (small) 256 frame schedule */ -#define EHCI_IAA_JIFFIES (HZ/100) /* arbitrary; ~10 msec */ +#define EHCI_IAA_MSECS 10 /* arbitrary */ #define EHCI_IO_JIFFIES (HZ/10) /* io watchdog > irq_thresh */ #define EHCI_ASYNC_JIFFIES (HZ/20) /* async idle timeout */ #define EHCI_SHRINK_JIFFIES (HZ/200) /* async qh unlink delay */ @@ -254,6 +254,7 @@ /*-------------------------------------------------------------------------*/ +static void end_unlink_async (struct ehci_hcd *ehci, struct pt_regs *regs); static void ehci_work(struct ehci_hcd *ehci, struct pt_regs *regs); #include "ehci-hub.c" @@ -263,6 +264,29 @@ /*-------------------------------------------------------------------------*/ +static void ehci_iaa_watchdog (unsigned long param) +{ + struct ehci_hcd *ehci = (struct ehci_hcd *) param; + unsigned long flags; + u32 status; + + spin_lock_irqsave (&ehci->lock, flags); + WARN_ON(!ehci->reclaim); + + /* lost IAA irqs wedge things badly; seen first with a vt8235 */ + if (ehci->reclaim) { + status = readl (&ehci->regs->status); + if (status & STS_IAA) { + ehci_vdbg (ehci, "lost IAA\n"); + COUNT (ehci->stats.lost_iaa); + writel (STS_IAA, &ehci->regs->status); + end_unlink_async (ehci, NULL); + } + } + + spin_unlock_irqrestore (&ehci->lock, flags); +} + static void ehci_watchdog (unsigned long param) { struct ehci_hcd *ehci = (struct ehci_hcd *) param; @@ -270,21 +294,9 @@ spin_lock_irqsave (&ehci->lock, flags); - /* lost IAA irqs wedge things badly; seen with a vt8235 */ - if (ehci->reclaim) { - u32 status = readl (&ehci->regs->status); - - if (status & STS_IAA) { - ehci_vdbg (ehci, "lost IAA\n"); - COUNT (ehci->stats.lost_iaa); - writel (STS_IAA, &ehci->regs->status); - ehci->reclaim_ready = 1; - } - } - - /* stop async processing after it's idled a bit */ + /* stop async processing after it's idled a bit */ if (test_bit (TIMER_ASYNC_OFF, &ehci->actions)) - start_unlink_async (ehci, ehci->async); + start_unlink_async (ehci, ehci->async); /* ehci could run by timer, without IRQs ... */ ehci_work (ehci, NULL); @@ -292,21 +304,20 @@ spin_unlock_irqrestore (&ehci->lock, flags); } -/* Reboot notifiers kick in for silicon on any bus (not just pci, etc). +/* ehci_shutdown kick in for silicon on any bus (not just pci, etc). * This forcibly disables dma and IRQs, helping kexec and other cases * where the next system software may expect clean state. */ -static int -ehci_reboot (struct notifier_block *self, unsigned long code, void *null) +static void +ehci_shutdown (struct usb_hcd *hcd) { - struct ehci_hcd *ehci; + struct ehci_hcd *ehci; - ehci = container_of (self, struct ehci_hcd, reboot_notifier); + ehci = hcd_to_ehci (hcd); (void) ehci_halt (ehci); /* make BIOS/etc use companion controller during reboot */ writel (0, &ehci->regs->configured_flag); - return 0; } static void ehci_port_power (struct ehci_hcd *ehci, int is_on) @@ -334,8 +345,6 @@ static void ehci_work (struct ehci_hcd *ehci, struct pt_regs *regs) { timer_action_done (ehci, TIMER_IO_WATCHDOG); - if (ehci->reclaim_ready) - end_unlink_async (ehci, regs); /* another CPU may drop ehci->lock during a schedule scan while * it reports urb completions. this flag guards against bogus @@ -370,6 +379,7 @@ /* no more interrupts ... */ del_timer_sync (&ehci->watchdog); + del_timer_sync (&ehci->iaa_watchdog); spin_lock_irq(&ehci->lock); if (HC_IS_RUNNING (hcd->state)) @@ -381,7 +391,6 @@ /* let companion controllers work when we aren't */ writel (0, &ehci->regs->configured_flag); - unregister_reboot_notifier (&ehci->reboot_notifier); remove_debug_files (ehci); @@ -417,6 +426,10 @@ ehci->watchdog.function = ehci_watchdog; ehci->watchdog.data = (unsigned long) ehci; + init_timer(&ehci->iaa_watchdog); + ehci->iaa_watchdog.function = ehci_iaa_watchdog; + ehci->iaa_watchdog.data = (unsigned long) ehci; + /* * hw default: 1K periodic list heads, one per frame. * periodic_size can shrink by USBCMD update if hcc_params allows. @@ -427,13 +440,12 @@ /* controllers may cache some of the periodic schedule ... */ hcc_params = readl(&ehci->caps->hcc_params); - if (HCC_ISOC_CACHE(hcc_params)) // full frame cache + if (HCC_ISOC_CACHE(hcc_params)) // full frame cache ehci->i_thresh = 8; else // N microframes cached ehci->i_thresh = 2 + HCC_ISOC_THRES(hcc_params); ehci->reclaim = NULL; - ehci->reclaim_ready = 0; ehci->next_uframe = -1; /* @@ -483,9 +495,6 @@ } ehci->command = temp; - ehci->reboot_notifier.notifier_call = ehci_reboot; - register_reboot_notifier(&ehci->reboot_notifier); - return 0; } @@ -499,7 +508,6 @@ /* EHCI spec section 4.1 */ if ((retval = ehci_reset(ehci)) != 0) { - unregister_reboot_notifier(&ehci->reboot_notifier); ehci_mem_cleanup(ehci); return retval; } @@ -611,7 +619,7 @@ /* complete the unlinking of some qh [4.15.2.3] */ if (status & STS_IAA) { COUNT (ehci->stats.reclaim); - ehci->reclaim_ready = 1; + end_unlink_async (ehci, regs); bh = 1; } @@ -715,10 +723,14 @@ static void unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh) { - /* if we need to use IAA and it's busy, defer */ - if (qh->qh_state == QH_STATE_LINKED - && ehci->reclaim - && HC_IS_RUNNING (ehci_to_hcd(ehci)->state)) { + // BUG_ON(qh->qh_state != QH_STATE_LINKED); + + /* failfast */ + if (!HC_IS_RUNNING (ehci_to_hcd(ehci)->state)) + end_unlink_async (ehci, NULL); + + /* defer till later if busy */ + else if (ehci->reclaim) { struct ehci_qh *last; for (last = ehci->reclaim; @@ -728,12 +740,8 @@ qh->qh_state = QH_STATE_UNLINK_WAIT; last->reclaim = qh; - /* bypass IAA if the hc can't care */ - } else if (!HC_IS_RUNNING (ehci_to_hcd(ehci)->state) && ehci->reclaim) - end_unlink_async (ehci, NULL); - - /* something else might have unlinked the qh by now */ - if (qh->qh_state == QH_STATE_LINKED) + /* start IAA cycle */ + } else start_unlink_async (ehci, qh); } @@ -755,7 +763,19 @@ qh = (struct ehci_qh *) urb->hcpriv; if (!qh) break; - unlink_async (ehci, qh); + switch (qh->qh_state) { + case QH_STATE_LINKED: + case QH_STATE_COMPLETING: + unlink_async (ehci, qh); + break; + case QH_STATE_UNLINK: + case QH_STATE_UNLINK_WAIT: + /* already started */ + break; + case QH_STATE_IDLE: + WARN_ON(1); + break; + } break; case PIPE_INTERRUPT: @@ -847,6 +867,7 @@ unlink_async (ehci, qh); /* FALL THROUGH */ case QH_STATE_UNLINK: /* wait for hw to finish? */ + case QH_STATE_UNLINK_WAIT: idle_timeout: spin_unlock_irqrestore (&ehci->lock, flags); schedule_timeout_uninterruptible(1);
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index d03e3ca..b2ee13c 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c
@@ -1,6 +1,6 @@ /* * Copyright (C) 2001-2004 by David Brownell - * + * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your @@ -48,7 +48,7 @@ } ehci->command = readl (&ehci->regs->command); if (ehci->reclaim) - ehci->reclaim_ready = 1; + end_unlink_async (ehci, NULL); ehci_work(ehci, NULL); /* suspend any active/unsuspended ports, maybe allow wakeup */ @@ -103,10 +103,10 @@ /* re-init operational registers in case we lost power */ if (readl (&ehci->regs->intr_enable) == 0) { - /* at least some APM implementations will try to deliver + /* at least some APM implementations will try to deliver * IRQs right away, so delay them until we're ready. - */ - intr_enable = 1; + */ + intr_enable = 1; writel (0, &ehci->regs->segment); writel (ehci->periodic_dma, &ehci->regs->frame_list); writel ((u32)ehci->async->qh_dma, &ehci->regs->async_next); @@ -232,7 +232,7 @@ buf [1] = 0; retval++; } - + /* no hub change reports (bit 0) for now (power, ...) */ /* port N changes (bit N)? */ @@ -304,7 +304,7 @@ /*-------------------------------------------------------------------------*/ -#define PORT_WAKE_BITS (PORT_WKOC_E|PORT_WKDISC_E|PORT_WKCONN_E) +#define PORT_WAKE_BITS (PORT_WKOC_E|PORT_WKDISC_E|PORT_WKCONN_E) static int ehci_hub_control ( struct usb_hcd *hcd,
diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c index 766061e..a8ba2e1 100644 --- a/drivers/usb/host/ehci-mem.c +++ b/drivers/usb/host/ehci-mem.c
@@ -1,6 +1,6 @@ /* * Copyright (c) 2001 by David Brownell - * + * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your @@ -25,7 +25,7 @@ * - data used only by the HCD ... kmalloc is fine * - async and periodic schedules, shared by HC and HCD ... these * need to use dma_pool or dma_alloc_coherent - * - driver buffers, read/written by HC ... single shot DMA mapped + * - driver buffers, read/written by HC ... single shot DMA mapped * * There's also PCI "register" data, which is memory mapped. * No memory seen by this driver is pageable. @@ -119,7 +119,7 @@ /*-------------------------------------------------------------------------*/ -/* The queue heads and transfer descriptors are managed from pools tied +/* The queue heads and transfer descriptors are managed from pools tied * to each of the "per device" structures. * This is the initialisation and cleanup code. */ @@ -165,7 +165,7 @@ int i; /* QTDs for control/bulk/intr transfers */ - ehci->qtd_pool = dma_pool_create ("ehci_qtd", + ehci->qtd_pool = dma_pool_create ("ehci_qtd", ehci_to_hcd(ehci)->self.controller, sizeof (struct ehci_qtd), 32 /* byte alignment (for hw parts) */, @@ -175,7 +175,7 @@ } /* QHs for control/bulk/intr transfers */ - ehci->qh_pool = dma_pool_create ("ehci_qh", + ehci->qh_pool = dma_pool_create ("ehci_qh", ehci_to_hcd(ehci)->self.controller, sizeof (struct ehci_qh), 32 /* byte alignment (for hw parts) */, @@ -189,7 +189,7 @@ } /* ITD for high speed ISO transfers */ - ehci->itd_pool = dma_pool_create ("ehci_itd", + ehci->itd_pool = dma_pool_create ("ehci_itd", ehci_to_hcd(ehci)->self.controller, sizeof (struct ehci_itd), 32 /* byte alignment (for hw parts) */, @@ -199,7 +199,7 @@ } /* SITD for full/low speed split ISO transfers */ - ehci->sitd_pool = dma_pool_create ("ehci_sitd", + ehci->sitd_pool = dma_pool_create ("ehci_sitd", ehci_to_hcd(ehci)->self.controller, sizeof (struct ehci_sitd), 32 /* byte alignment (for hw parts) */,
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index cadffac..08d0472 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c
@@ -238,6 +238,12 @@ writel (0, &ehci->regs->intr_enable); (void)readl(&ehci->regs->intr_enable); + /* make sure snapshot being resumed re-enumerates everything */ + if (message.event == PM_EVENT_PRETHAW) { + ehci_halt(ehci); + ehci_reset(ehci); + } + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); bail: spin_unlock_irqrestore (&ehci->lock, flags); @@ -297,7 +303,7 @@ /* emptying the schedule aborts any urbs */ spin_lock_irq(&ehci->lock); if (ehci->reclaim) - ehci->reclaim_ready = 1; + end_unlink_async (ehci, NULL); ehci_work(ehci, NULL); spin_unlock_irq(&ehci->lock); @@ -332,6 +338,7 @@ .resume = ehci_pci_resume, #endif .stop = ehci_stop, + .shutdown = ehci_shutdown, /* * managing i/o requests and associated device resources @@ -378,4 +385,5 @@ .suspend = usb_hcd_pci_suspend, .resume = usb_hcd_pci_resume, #endif + .shutdown = usb_hcd_pci_shutdown, };
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index e469221..7fc25b6 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c
@@ -1,6 +1,6 @@ /* * Copyright (C) 2001-2004 by David Brownell - * + * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your @@ -31,7 +31,7 @@ * ISO traffic uses "ISO TD" (itd, and sitd) records, and (along with * interrupts) needs careful scheduling. Performance improvements can be * an ongoing challenge. That's in "ehci-sched.c". - * + * * USB 1.1 devices are handled (a) by "companion" OHCI or UHCI root hubs, * or otherwise through transaction translators (TTs) in USB 2.0 hubs using * (b) special fields in qh entries or (c) split iso entries. TTs will @@ -199,7 +199,7 @@ && ((token & QTD_STS_MMF) != 0 || QTD_CERR(token) == 0) && (!ehci_is_TDI(ehci) - || urb->dev->tt->hub != + || urb->dev->tt->hub != ehci_to_hcd(ehci)->self.root_hub)) { #ifdef DEBUG struct usb_device *tt = urb->dev->tt->hub; @@ -364,7 +364,7 @@ */ if (likely (urb->status == -EINPROGRESS)) continue; - + /* issue status after short control reads */ if (unlikely (do_status != 0) && QTD_PID (token) == 0 /* OUT */) { @@ -388,7 +388,7 @@ wmb (); } } - + /* remove it from the queue */ spin_lock (&urb->lock); qtd_copy_status (ehci, urb, qtd->length, token); @@ -518,7 +518,7 @@ /* for zero length DATA stages, STATUS is always IN */ if (len == 0) token |= (1 /* "in" */ << 8); - } + } /* * data transfer stage: buffer setup @@ -759,7 +759,7 @@ } break; default: - dbg ("bogus dev %p speed %d", urb->dev, urb->dev->speed); + dbg ("bogus dev %p speed %d", urb->dev, urb->dev->speed); done: qh_put (qh); return NULL; @@ -967,17 +967,16 @@ struct ehci_qh *qh = ehci->reclaim; struct ehci_qh *next; - timer_action_done (ehci, TIMER_IAA_WATCHDOG); + iaa_watchdog_done (ehci); // qh->hw_next = cpu_to_le32 (qh->qh_dma); qh->qh_state = QH_STATE_IDLE; qh->qh_next.qh = NULL; - qh_put (qh); // refcount from reclaim + qh_put (qh); // refcount from reclaim /* other unlink(s) may be pending (in QH_STATE_UNLINK_WAIT) */ next = qh->reclaim; ehci->reclaim = next; - ehci->reclaim_ready = 0; qh->reclaim = NULL; qh_completions (ehci, qh, regs); @@ -1031,7 +1030,7 @@ timer_action_done (ehci, TIMER_ASYNC_OFF); } return; - } + } qh->qh_state = QH_STATE_UNLINK; ehci->reclaim = qh = qh_get (qh); @@ -1046,17 +1045,16 @@ if (unlikely (ehci_to_hcd(ehci)->state == HC_STATE_HALT)) { /* if (unlikely (qh->reclaim != 0)) - * this will recurse, probably not much + * this will recurse, probably not much */ end_unlink_async (ehci, NULL); return; } - ehci->reclaim_ready = 0; cmd |= CMD_IAAD; writel (cmd, &ehci->regs->command); (void) readl (&ehci->regs->command); - timer_action (ehci, TIMER_IAA_WATCHDOG); + iaa_watchdog_start (ehci); } /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 4859900..e5e9c65 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c
@@ -1,7 +1,7 @@ /* * Copyright (c) 2001-2004 by David Brownell * Copyright (c) 2003 Michal Sojka, for high-speed iso transfers - * + * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your @@ -613,7 +613,7 @@ /*-------------------------------------------------------------------------*/ static int check_period ( - struct ehci_hcd *ehci, + struct ehci_hcd *ehci, unsigned frame, unsigned uframe, unsigned period, @@ -629,7 +629,7 @@ /* * 80% periodic == 100 usec/uframe available - * convert "usecs we need" to "max already claimed" + * convert "usecs we need" to "max already claimed" */ usecs = 100 - usecs; @@ -659,14 +659,14 @@ } static int check_intr_schedule ( - struct ehci_hcd *ehci, + struct ehci_hcd *ehci, unsigned frame, unsigned uframe, const struct ehci_qh *qh, __le32 *c_maskp ) { - int retval = -ENOSPC; + int retval = -ENOSPC; u8 mask = 0; if (qh->c_usecs && uframe >= 6) /* FSTN territory? */ @@ -701,7 +701,7 @@ /* Make sure this tt's buffer is also available for CSPLITs. * We pessimize a bit; probably the typical full speed case * doesn't need the second CSPLIT. - * + * * NOTE: both SPLIT and CSPLIT could be checked in just * one smart pass... */ @@ -728,7 +728,7 @@ */ static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh) { - int status; + int status; unsigned uframe; __le32 c_mask; unsigned frame; /* 0..(qh->period - 1), or NO_FRAME */ @@ -784,7 +784,7 @@ ehci_dbg (ehci, "reused qh %p schedule\n", qh); /* stuff into the periodic schedule */ - status = qh_link_periodic (ehci, qh); + status = qh_link_periodic (ehci, qh); done: return status; } @@ -1681,7 +1681,7 @@ status = -ESHUTDOWN; else status = iso_stream_schedule (ehci, urb, stream); - if (likely (status == 0)) + if (likely (status == 0)) itd_link_urb (ehci, urb, ehci->periodic_size << 3, stream); spin_unlock_irqrestore (&ehci->lock, flags); @@ -1738,7 +1738,7 @@ if (packet->buf1 != (buf & ~(u64)0x0fff)) packet->cross = 1; - /* OUT uses multiple start-splits */ + /* OUT uses multiple start-splits */ if (stream->bEndpointAddress & USB_DIR_IN) continue; length = (length + 187) / 188; @@ -1925,7 +1925,7 @@ /*-------------------------------------------------------------------------*/ #define SITD_ERRS (SITD_STS_ERR | SITD_STS_DBE | SITD_STS_BABBLE \ - | SITD_STS_XACT | SITD_STS_MMF) + | SITD_STS_XACT | SITD_STS_MMF) static unsigned sitd_complete ( @@ -2043,7 +2043,7 @@ status = -ESHUTDOWN; else status = iso_stream_schedule (ehci, urb, stream); - if (status == 0) + if (status == 0) sitd_link_urb (ehci, urb, ehci->periodic_size << 3, stream); spin_unlock_irqrestore (&ehci->lock, flags); @@ -2226,5 +2226,5 @@ now_uframe++; now_uframe %= mod; } - } + } }
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 679c1cd..6aac39f 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h
@@ -1,6 +1,6 @@ /* * Copyright (c) 2001-2002 by David Brownell - * + * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your @@ -58,7 +58,6 @@ /* async schedule support */ struct ehci_qh *async; struct ehci_qh *reclaim; - unsigned reclaim_ready : 1; unsigned scanning : 1; /* periodic schedule support */ @@ -81,8 +80,8 @@ struct dma_pool *itd_pool; /* itd per iso urb */ struct dma_pool *sitd_pool; /* sitd per split iso urb */ + struct timer_list iaa_watchdog; struct timer_list watchdog; - struct notifier_block reboot_notifier; unsigned long actions; unsigned stamp; unsigned long next_statechange; @@ -104,7 +103,7 @@ #endif }; -/* convert between an HCD pointer and the corresponding EHCI_HCD */ +/* convert between an HCD pointer and the corresponding EHCI_HCD */ static inline struct ehci_hcd *hcd_to_ehci (struct usb_hcd *hcd) { return (struct ehci_hcd *) (hcd->hcd_priv); @@ -115,9 +114,21 @@ } +static inline void +iaa_watchdog_start (struct ehci_hcd *ehci) +{ + WARN_ON(timer_pending(&ehci->iaa_watchdog)); + mod_timer (&ehci->iaa_watchdog, + jiffies + msecs_to_jiffies(EHCI_IAA_MSECS)); +} + +static inline void iaa_watchdog_done (struct ehci_hcd *ehci) +{ + del_timer (&ehci->iaa_watchdog); +} + enum ehci_timer_action { TIMER_IO_WATCHDOG, - TIMER_IAA_WATCHDOG, TIMER_ASYNC_SHRINK, TIMER_ASYNC_OFF, }; @@ -135,9 +146,6 @@ unsigned long t; switch (action) { - case TIMER_IAA_WATCHDOG: - t = EHCI_IAA_JIFFIES; - break; case TIMER_IO_WATCHDOG: t = EHCI_IO_JIFFIES; break; @@ -154,8 +162,7 @@ // async queue SHRINK often precedes IAA. while it's ready // to go OFF neither can matter, and afterwards the IO // watchdog stops unless there's still periodic traffic. - if (action != TIMER_IAA_WATCHDOG - && t > ehci->watchdog.expires + if (time_before_eq(t, ehci->watchdog.expires) && timer_pending (&ehci->watchdog)) return; mod_timer (&ehci->watchdog, t); @@ -179,8 +186,8 @@ #define HCS_INDICATOR(p) ((p)&(1 << 16)) /* true: has port indicators */ #define HCS_N_CC(p) (((p)>>12)&0xf) /* bits 15:12, #companion HCs */ #define HCS_N_PCC(p) (((p)>>8)&0xf) /* bits 11:8, ports per CC */ -#define HCS_PORTROUTED(p) ((p)&(1 << 7)) /* true: port routing */ -#define HCS_PPC(p) ((p)&(1 << 4)) /* true: port power control */ +#define HCS_PORTROUTED(p) ((p)&(1 << 7)) /* true: port routing */ +#define HCS_PPC(p) ((p)&(1 << 4)) /* true: port power control */ #define HCS_N_PORTS(p) (((p)>>0)&0xf) /* bits 3:0, ports on HC */ u32 hcc_params; /* HCCPARAMS - offset 0x8 */ @@ -205,7 +212,7 @@ #define CMD_LRESET (1<<7) /* partial reset (no ports, etc) */ #define CMD_IAAD (1<<6) /* "doorbell" interrupt async advance */ #define CMD_ASE (1<<5) /* async schedule enable */ -#define CMD_PSE (1<<4) /* periodic schedule enable */ +#define CMD_PSE (1<<4) /* periodic schedule enable */ /* 3:2 is periodic frame list size */ #define CMD_RESET (1<<1) /* reset HC not bus */ #define CMD_RUN (1<<0) /* start/stop HC */ @@ -231,9 +238,9 @@ /* FRINDEX: offset 0x0C */ u32 frame_index; /* current microframe number */ /* CTRLDSSEGMENT: offset 0x10 */ - u32 segment; /* address bits 63:32 if needed */ + u32 segment; /* address bits 63:32 if needed */ /* PERIODICLISTBASE: offset 0x14 */ - u32 frame_list; /* points to periodic list */ + u32 frame_list; /* points to periodic list */ /* ASYNCLISTADDR: offset 0x18 */ u32 async_next; /* address of next async queue head */ @@ -302,7 +309,7 @@ /* * EHCI Specification 0.95 Section 3.5 - * QTD: describe data transfer components (buffer, direction, ...) + * QTD: describe data transfer components (buffer, direction, ...) * See Fig 3-6 "Queue Element Transfer Descriptor Block Diagram". * * These are associated only with "QH" (Queue Head) structures, @@ -312,7 +319,7 @@ /* first part defined by EHCI spec */ __le32 hw_next; /* see EHCI 3.5.1 */ __le32 hw_alt_next; /* see EHCI 3.5.2 */ - __le32 hw_token; /* see EHCI 3.5.3 */ + __le32 hw_token; /* see EHCI 3.5.3 */ #define QTD_TOGGLE (1 << 31) /* data toggle */ #define QTD_LENGTH(tok) (((tok)>>16) & 0x7fff) #define QTD_IOC (1 << 15) /* interrupt on complete */ @@ -349,8 +356,8 @@ /* values for that type tag */ #define Q_TYPE_ITD __constant_cpu_to_le32 (0 << 1) #define Q_TYPE_QH __constant_cpu_to_le32 (1 << 1) -#define Q_TYPE_SITD __constant_cpu_to_le32 (2 << 1) -#define Q_TYPE_FSTN __constant_cpu_to_le32 (3 << 1) +#define Q_TYPE_SITD __constant_cpu_to_le32 (2 << 1) +#define Q_TYPE_FSTN __constant_cpu_to_le32 (3 << 1) /* next async queue entry, or pointer to interrupt/periodic QH */ #define QH_NEXT(dma) (cpu_to_le32(((u32)dma)&~0x01f)|Q_TYPE_QH) @@ -367,7 +374,7 @@ * For entries in the async schedule, the type tag always says "qh". */ union ehci_shadow { - struct ehci_qh *qh; /* Q_TYPE_QH */ + struct ehci_qh *qh; /* Q_TYPE_QH */ struct ehci_itd *itd; /* Q_TYPE_ITD */ struct ehci_sitd *sitd; /* Q_TYPE_SITD */ struct ehci_fstn *fstn; /* Q_TYPE_FSTN */ @@ -397,7 +404,7 @@ #define QH_HUBPORT 0x3f800000 #define QH_MULT 0xc0000000 __le32 hw_current; /* qtd list - see EHCI 3.6.4 */ - + /* qtd overlay (hardware parts of a struct ehci_qtd) */ __le32 hw_qtd_next; __le32 hw_alt_next; @@ -472,7 +479,7 @@ struct list_head td_list; /* queued itds/sitds */ struct list_head free_list; /* list of unused itds/sitds */ struct usb_device *udev; - struct usb_host_endpoint *ep; + struct usb_host_endpoint *ep; /* output of (re)scheduling */ unsigned long start; /* jiffies */ @@ -492,8 +499,8 @@ unsigned bandwidth; /* This is used to initialize iTD's hw_bufp fields */ - __le32 buf0; - __le32 buf1; + __le32 buf0; + __le32 buf1; __le32 buf2; /* this is used to initialize sITD's tt info */ @@ -521,7 +528,7 @@ #define ITD_ACTIVE __constant_cpu_to_le32(EHCI_ISOC_ACTIVE) - __le32 hw_bufp [7]; /* see EHCI 3.3.3 */ + __le32 hw_bufp [7]; /* see EHCI 3.3.3 */ __le32 hw_bufp_hi [7]; /* Appendix B */ /* the rest is HCD-private */ @@ -542,7 +549,7 @@ /*-------------------------------------------------------------------------*/ /* - * EHCI Specification 0.95 Section 3.4 + * EHCI Specification 0.95 Section 3.4 * siTD, aka split-transaction isochronous Transfer Descriptor * ... describe full speed iso xfers through TT in hubs * see Figure 3-5 "Split-transaction Isochronous Transaction Descriptor (siTD)
diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 5147ed4..a72e041 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c
@@ -1204,10 +1204,10 @@ static int isp116x_open_seq(struct inode *inode, struct file *file) { - return single_open(file, isp116x_show_dbg, inode->u.generic_ip); + return single_open(file, isp116x_show_dbg, inode->i_private); } -static struct file_operations isp116x_debug_fops = { +static const struct file_operations isp116x_debug_fops = { .open = isp116x_open_seq, .read = seq_read, .llseek = seq_lseek,
diff --git a/drivers/usb/host/isp116x.h b/drivers/usb/host/isp116x.h index a1b7c38..b91e2ed 100644 --- a/drivers/usb/host/isp116x.h +++ b/drivers/usb/host/isp116x.h
@@ -233,7 +233,7 @@ /* Bit Stuff */ -EPROTO, /* Data Togg */ -EILSEQ, /* Stall */ -EPIPE, - /* DevNotResp */ -ETIMEDOUT, + /* DevNotResp */ -ETIME, /* PIDCheck */ -EPROTO, /* UnExpPID */ -EPROTO, /* DataOver */ -EOVERFLOW,
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 85cc059..b466581 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c
@@ -193,7 +193,7 @@ if ((ret = ohci_init(ohci)) < 0) return ret; - root->maxchild = board->ports; + ohci->num_ports = board->ports; if ((ret = ohci_run(ohci)) < 0) { err("can't start %s", hcd->self.bus_name); @@ -221,6 +221,7 @@ */ .start = ohci_at91_start, .stop = ohci_stop, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -239,7 +240,7 @@ */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, - + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -296,6 +297,7 @@ if (!clocked) { clk_enable(iclk); clk_enable(fclk); + clocked = 1; } return 0; @@ -310,6 +312,7 @@ static struct platform_driver ohci_hcd_at91_driver = { .probe = ohci_hcd_at91_drv_probe, .remove = ohci_hcd_at91_drv_remove, + .shutdown = usb_hcd_platform_shutdown, .suspend = ohci_hcd_at91_drv_suspend, .resume = ohci_hcd_at91_drv_resume, .driver = {
diff --git a/drivers/usb/host/ohci-au1xxx.c b/drivers/usb/host/ohci-au1xxx.c index f7a975d..24e23c5 100644 --- a/drivers/usb/host/ohci-au1xxx.c +++ b/drivers/usb/host/ohci-au1xxx.c
@@ -268,11 +268,8 @@ * basic lifecycle operations */ .start = ohci_au1xxx_start, -#ifdef CONFIG_PM - /* suspend: ohci_au1xxx_suspend, -- tbd */ - /* resume: ohci_au1xxx_resume, -- tbd */ -#endif /*CONFIG_PM*/ .stop = ohci_stop, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -291,6 +288,7 @@ */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -338,6 +336,7 @@ static struct platform_driver ohci_hcd_au1xxx_driver = { .probe = ohci_hcd_au1xxx_drv_probe, .remove = ohci_hcd_au1xxx_drv_remove, + .shutdown = usb_hcd_platform_shutdown, /*.suspend = ohci_hcd_au1xxx_drv_suspend, */ /*.resume = ohci_hcd_au1xxx_drv_resume, */ .driver = {
diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index 7bfffcb..8293c1d 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c
@@ -477,7 +477,7 @@ unsigned long flags; bus = class_get_devdata(class_dev); - hcd = bus->hcpriv; + hcd = bus_to_hcd(bus); ohci = hcd_to_ohci(hcd); /* display control and bulk lists together, for simplicity */ @@ -510,7 +510,7 @@ seen_count = 0; bus = class_get_devdata(class_dev); - hcd = bus->hcpriv; + hcd = bus_to_hcd(bus); ohci = hcd_to_ohci(hcd); next = buf; size = PAGE_SIZE; @@ -607,7 +607,7 @@ u32 rdata; bus = class_get_devdata(class_dev); - hcd = bus->hcpriv; + hcd = bus_to_hcd(bus); ohci = hcd_to_ohci(hcd); regs = ohci->regs; next = buf; @@ -667,6 +667,11 @@ size -= temp; next += temp; + temp = scnprintf (next, size, "hub poll timer %s\n", + ohci_to_hcd(ohci)->poll_rh ? "ON" : "off"); + size -= temp; + next += temp; + /* roothub */ ohci_dump_roothub (ohci, 1, &next, &size); @@ -680,10 +685,11 @@ static inline void create_debug_files (struct ohci_hcd *ohci) { struct class_device *cldev = ohci_to_hcd(ohci)->self.class_dev; + int retval; - class_device_create_file(cldev, &class_device_attr_async); - class_device_create_file(cldev, &class_device_attr_periodic); - class_device_create_file(cldev, &class_device_attr_registers); + retval = class_device_create_file(cldev, &class_device_attr_async); + retval = class_device_create_file(cldev, &class_device_attr_periodic); + retval = class_device_create_file(cldev, &class_device_attr_registers); ohci_dbg (ohci, "created debug files\n"); }
diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c index 6531c4d..1bf5e7a 100644 --- a/drivers/usb/host/ohci-ep93xx.c +++ b/drivers/usb/host/ohci-ep93xx.c
@@ -128,12 +128,14 @@ .flags = HCD_USB11 | HCD_MEMORY, .start = ohci_ep93xx_start, .stop = ohci_stop, + .shutdown = ohci_shutdown, .urb_enqueue = ohci_urb_enqueue, .urb_dequeue = ohci_urb_dequeue, .endpoint_disable = ohci_endpoint_disable, .get_frame_number = ohci_get_frame, .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -202,6 +204,7 @@ static struct platform_driver ohci_hcd_ep93xx_driver = { .probe = ohci_hcd_ep93xx_drv_probe, .remove = ohci_hcd_ep93xx_drv_remove, + .shutdown = usb_hcd_platform_shutdown, #ifdef CONFIG_PM .suspend = ohci_hcd_ep93xx_drv_suspend, .resume = ohci_hcd_ep93xx_drv_resume,
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 94d8cf4..1027aa0 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c
@@ -88,7 +88,7 @@ #include <linux/timer.h> #include <linux/list.h> #include <linux/usb.h> -#include <linux/usb_otg.h> +#include <linux/usb/otg.h> #include <linux/dma-mapping.h> #include <linux/dmapool.h> #include <linux/reboot.h> @@ -101,7 +101,7 @@ #include "../core/hcd.h" -#define DRIVER_VERSION "2005 April 22" +#define DRIVER_VERSION "2006 August 04" #define DRIVER_AUTHOR "Roman Weissgaerber, David Brownell" #define DRIVER_DESC "USB 1.1 'Open' Host Controller (OHCI) Driver" @@ -110,9 +110,10 @@ #undef OHCI_VERBOSE_DEBUG /* not always helpful */ /* For initializing controller (mask in an HCFS mode too) */ -#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR +#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR #define OHCI_INTR_INIT \ - (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_WDH) + (OHCI_INTR_MIE | OHCI_INTR_RHSC | OHCI_INTR_UE \ + | OHCI_INTR_RD | OHCI_INTR_WDH) #ifdef __hppa__ /* On PA-RISC, PDC can leave IR set incorrectly; ignore it there. */ @@ -128,12 +129,13 @@ static const char hcd_name [] = "ohci_hcd"; +#define STATECHANGE_DELAY msecs_to_jiffies(300) + #include "ohci.h" static void ohci_dump (struct ohci_hcd *ohci, int verbose); static int ohci_init (struct ohci_hcd *ohci); static void ohci_stop (struct usb_hcd *hcd); -static int ohci_reboot (struct notifier_block *, unsigned long , void *); #include "ohci-hub.c" #include "ohci-dbg.c" @@ -416,21 +418,20 @@ ohci_writel (ohci, ohci->hc_control, &ohci->regs->control); } -/* reboot notifier forcibly disables IRQs and DMA, helping kexec and +/* ohci_shutdown forcibly disables IRQs and DMA, helping kexec and * other cases where the next software may expect clean state from the * "firmware". this is bus-neutral, unlike shutdown() methods. */ -static int -ohci_reboot (struct notifier_block *block, unsigned long code, void *null) +static void +ohci_shutdown (struct usb_hcd *hcd) { struct ohci_hcd *ohci; - ohci = container_of (block, struct ohci_hcd, reboot_notifier); + ohci = hcd_to_ohci (hcd); ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); ohci_usb_reset (ohci); /* flush the writes */ (void) ohci_readl (ohci, &ohci->regs->control); - return 0; } /*-------------------------------------------------------------------------* @@ -446,7 +447,6 @@ disable (ohci); ohci->regs = hcd->regs; - ohci->next_statechange = jiffies; /* REVISIT this BIOS handshake is now moved into PCI "quirks", and * was never needed for most non-PCI systems ... remove the code? @@ -502,7 +502,6 @@ if ((ret = ohci_mem_init (ohci)) < 0) ohci_stop (hcd); else { - register_reboot_notifier (&ohci->reboot_notifier); create_debug_files (ohci); } @@ -637,10 +636,14 @@ return -EOVERFLOW; } - /* start controller operations */ + /* use rhsc irqs after khubd is fully initialized */ + hcd->poll_rh = 1; + hcd->uses_new_polling = 1; + + /* start controller operations */ ohci->hc_control &= OHCI_CTRL_RWC; - ohci->hc_control |= OHCI_CONTROL_INIT | OHCI_USB_OPER; - ohci_writel (ohci, ohci->hc_control, &ohci->regs->control); + ohci->hc_control |= OHCI_CONTROL_INIT | OHCI_USB_OPER; + ohci_writel (ohci, ohci->hc_control, &ohci->regs->control); hcd->state = HC_STATE_RUNNING; /* wake on ConnectStatusChange, matching external hubs */ @@ -648,7 +651,7 @@ /* Choose the interrupts we care about now, others later on demand */ mask = OHCI_INTR_INIT; - ohci_writel (ohci, mask, &ohci->regs->intrstatus); + ohci_writel (ohci, ~0, &ohci->regs->intrstatus); ohci_writel (ohci, mask, &ohci->regs->intrenable); /* handle root hub init quirks ... */ @@ -672,6 +675,7 @@ // flush those writes (void) ohci_readl (ohci, &ohci->regs->control); + ohci->next_statechange = jiffies + STATECHANGE_DELAY; spin_unlock_irq (&ohci->lock); // POTPGT delay is bits 24-31, in 2 ms units. @@ -709,7 +713,23 @@ /* interrupt for some other device? */ } else if ((ints &= ohci_readl (ohci, ®s->intrenable)) == 0) { return IRQ_NOTMINE; - } + } + + /* NOTE: vendors didn't always make the same implementation + * choices for RHSC. Sometimes it triggers on an edge (like + * setting and maybe clearing a port status change bit); and + * it's level-triggered on other silicon, active until khubd + * clears all active port status change bits. Poll by timer + * til it's fully debounced and the difference won't matter. + */ + if (ints & OHCI_INTR_RHSC) { + ohci_vdbg (ohci, "rhsc\n"); + ohci_writel (ohci, OHCI_INTR_RHSC, ®s->intrdisable); + hcd->poll_rh = 1; + ohci->next_statechange = jiffies + STATECHANGE_DELAY; + ohci_writel (ohci, OHCI_INTR_RHSC, ®s->intrstatus); + usb_hcd_poll_rh_status(hcd); + } if (ints & OHCI_INTR_UE) { disable (ohci); @@ -775,9 +795,10 @@ ohci_usb_reset (ohci); ohci_writel (ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); - + free_irq(hcd->irq, hcd); + hcd->irq = -1; + remove_debug_files (ohci); - unregister_reboot_notifier (&ohci->reboot_notifier); ohci_mem_cleanup (ohci); if (ohci->hcca) { dma_free_coherent (hcd->self.controller, @@ -917,6 +938,10 @@ #include "ohci-at91.c" #endif +#ifdef CONFIG_ARCH_PNX4008 +#include "ohci-pnx4008.c" +#endif + #if !(defined(CONFIG_PCI) \ || defined(CONFIG_SA1111) \ || defined(CONFIG_ARCH_S3C2410) \ @@ -928,6 +953,7 @@ || defined (CONFIG_USB_OHCI_HCD_PPC_SOC) \ || defined (CONFIG_ARCH_AT91RM9200) \ || defined (CONFIG_ARCH_AT91SAM9261) \ + || defined (CONFIG_ARCH_PNX4008) \ ) #error "missing bus glue for ohci-hcd" #endif
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index 5b0a23f..0b89933 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c
@@ -36,6 +36,14 @@ /*-------------------------------------------------------------------------*/ +/* hcd->hub_irq_enable() */ +static void ohci_rhsc_enable (struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci (hcd); + + ohci_writel (ohci, OHCI_INTR_RHSC, &ohci->regs->intrenable); +} + #ifdef CONFIG_PM #define OHCI_SCHED_ENABLES \ @@ -123,10 +131,10 @@ /* no resumes until devices finish suspending */ ohci->next_statechange = jiffies + msecs_to_jiffies (5); + /* no timer polling */ + hcd->poll_rh = 0; + done: - /* external suspend vs self autosuspend ... same effect */ - if (status == 0) - usb_hcd_suspend_root_hub(hcd); spin_unlock_irqrestore (&ohci->lock, flags); return status; } @@ -256,8 +264,8 @@ /* TRSMRCY */ msleep (10); - /* keep it alive for ~5x suspend + resume costs */ - ohci->next_statechange = jiffies + msecs_to_jiffies (250); + /* keep it alive for more than ~5x suspend + resume costs */ + ohci->next_statechange = jiffies + STATECHANGE_DELAY; /* maybe turn schedules back on */ enables = 0; @@ -302,9 +310,10 @@ { struct ohci_hcd *ohci = hcd_to_ohci (hcd); int i, changed = 0, length = 1; - int can_suspend = device_may_wakeup(&hcd->self.root_hub->dev); + int can_suspend; unsigned long flags; + can_suspend = device_may_wakeup(&hcd->self.root_hub->dev); spin_lock_irqsave (&ohci->lock, flags); /* handle autosuspended root: finish resuming before @@ -339,6 +348,10 @@ for (i = 0; i < ohci->num_ports; i++) { u32 status = roothub_portstatus (ohci, i); + /* can't autosuspend with active ports */ + if ((status & RH_PS_PES) && !(status & RH_PS_PSS)) + can_suspend = 0; + if (status & (RH_PS_CSC | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | RH_PS_PRSC)) { changed = 1; @@ -348,32 +361,41 @@ buf [1] |= 1 << (i - 7); continue; } - - /* can suspend if no ports are enabled; or if all all - * enabled ports are suspended AND remote wakeup is on. - */ - if (!(status & RH_PS_CCS)) - continue; - if ((status & RH_PS_PSS) && can_suspend) - continue; - can_suspend = 0; } -done: - spin_unlock_irqrestore (&ohci->lock, flags); -#ifdef CONFIG_PM - /* save power by suspending idle root hubs; - * INTR_RD wakes us when there's work + /* after root hub changes, stop polling after debouncing + * for a while and maybe kicking in autosuspend */ - if (can_suspend - && !changed + if (changed) { + ohci->next_statechange = jiffies + STATECHANGE_DELAY; + can_suspend = 0; + } else if (time_before (jiffies, ohci->next_statechange)) { + can_suspend = 0; + } else { +#ifdef CONFIG_PM + can_suspend = can_suspend && !ohci->ed_rm_list && ((OHCI_CTRL_HCFS | OHCI_SCHED_ENABLES) & ohci->hc_control) - == OHCI_USB_OPER - && time_after (jiffies, ohci->next_statechange) - && usb_trylock_device (hcd->self.root_hub) == 0 - ) { + == OHCI_USB_OPER; +#endif + if (hcd->uses_new_polling) { + hcd->poll_rh = 0; + /* use INTR_RHSC iff INTR_RD won't apply */ + if (!can_suspend) + ohci_writel (ohci, OHCI_INTR_RHSC, + &ohci->regs->intrenable); + } + } + +done: + spin_unlock_irqrestore (&ohci->lock, flags); + +#ifdef CONFIG_PM + /* save power by autosuspending idle root hubs; + * INTR_RD wakes us when there's work + */ + if (can_suspend && usb_trylock_device (hcd->self.root_hub) == 0) { ohci_vdbg (ohci, "autosuspend\n"); (void) ohci_bus_suspend (hcd); usb_unlock_device (hcd->self.root_hub);
diff --git a/drivers/usb/host/ohci-lh7a404.c b/drivers/usb/host/ohci-lh7a404.c index 5602da9..e121d97 100644 --- a/drivers/usb/host/ohci-lh7a404.c +++ b/drivers/usb/host/ohci-lh7a404.c
@@ -173,11 +173,8 @@ * basic lifecycle operations */ .start = ohci_lh7a404_start, -#ifdef CONFIG_PM - /* suspend: ohci_lh7a404_suspend, -- tbd */ - /* resume: ohci_lh7a404_resume, -- tbd */ -#endif /*CONFIG_PM*/ .stop = ohci_stop, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -196,6 +193,7 @@ */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -244,6 +242,7 @@ static struct platform_driver ohci_hcd_lh7a404_driver = { .probe = ohci_hcd_lh7a404_drv_probe, .remove = ohci_hcd_lh7a404_drv_remove, + .shutdown = usb_hcd_platform_shutdown, /*.suspend = ohci_hcd_lh7a404_drv_suspend, */ /*.resume = ohci_hcd_lh7a404_drv_resume, */ .driver = {
diff --git a/drivers/usb/host/ohci-mem.c b/drivers/usb/host/ohci-mem.c index bfbe328..d976614 100644 --- a/drivers/usb/host/ohci-mem.c +++ b/drivers/usb/host/ohci-mem.c
@@ -28,7 +28,6 @@ ohci->next_statechange = jiffies; spin_lock_init (&ohci->lock); INIT_LIST_HEAD (&ohci->pending); - ohci->reboot_notifier.notifier_call = ohci_reboot; } /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index c4c4bab..9c02177 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c
@@ -4,7 +4,7 @@ * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> * (C) Copyright 2000-2005 David Brownell * (C) Copyright 2002 Hewlett-Packard Company - * + * * OMAP Bus Glue * * Modified for OMAP by Tony Lindgren <tony@atomide.com> @@ -66,15 +66,20 @@ extern int ocpi_enable(void); static struct clk *usb_host_ck; +static struct clk *usb_dc_ck; +static int host_enabled; +static int host_initialized; static void omap_ohci_clock_power(int on) { if (on) { + clk_enable(usb_dc_ck); clk_enable(usb_host_ck); /* guesstimate for T5 == 1x 32K clock + APLL lock time */ udelay(100); } else { clk_disable(usb_host_ck); + clk_disable(usb_dc_ck); } } @@ -87,14 +92,14 @@ if (on) { if (machine_is_omap_innovator() && cpu_is_omap1510()) fpga_write(fpga_read(INNOVATOR_FPGA_CAM_USB_CONTROL) - | ((1 << 5/*usb1*/) | (1 << 3/*usb2*/)), + | ((1 << 5/*usb1*/) | (1 << 3/*usb2*/)), INNOVATOR_FPGA_CAM_USB_CONTROL); else if (machine_is_omap_osk()) tps65010_set_gpio_out_value(GPIO1, LOW); } else { if (machine_is_omap_innovator() && cpu_is_omap1510()) fpga_write(fpga_read(INNOVATOR_FPGA_CAM_USB_CONTROL) - & ~((1 << 5/*usb1*/) | (1 << 3/*usb2*/)), + & ~((1 << 5/*usb1*/) | (1 << 3/*usb2*/)), INNOVATOR_FPGA_CAM_USB_CONTROL); else if (machine_is_omap_osk()) tps65010_set_gpio_out_value(GPIO1, HIGH); @@ -103,6 +108,7 @@ return 0; } +#ifdef CONFIG_ARCH_OMAP15XX /* * OMAP-1510 specific Local Bus clock on/off */ @@ -121,8 +127,8 @@ /* * OMAP-1510 specific Local Bus initialization * NOTE: This assumes 32MB memory size in OMAP1510LB_MEMSIZE. - * See also arch/mach-omap/memory.h for __virt_to_dma() and - * __dma_to_virt() which need to match with the physical + * See also arch/mach-omap/memory.h for __virt_to_dma() and + * __dma_to_virt() which need to match with the physical * Local Bus address below. */ static int omap_1510_local_bus_init(void) @@ -130,7 +136,7 @@ unsigned int tlb; unsigned long lbaddr, physaddr; - omap_writel((omap_readl(OMAP1510_LB_CLOCK_DIV) & 0xfffffff8) | 0x4, + omap_writel((omap_readl(OMAP1510_LB_CLOCK_DIV) & 0xfffffff8) | 0x4, OMAP1510_LB_CLOCK_DIV); /* Configure the Local Bus MMU table */ @@ -138,7 +144,7 @@ lbaddr = tlb * 0x00100000 + OMAP1510_LB_OFFSET; physaddr = tlb * 0x00100000 + PHYS_OFFSET; omap_writel((lbaddr & 0x0fffffff) >> 22, OMAP1510_LB_MMU_CAM_H); - omap_writel(((lbaddr & 0x003ffc00) >> 6) | 0xc, + omap_writel(((lbaddr & 0x003ffc00) >> 6) | 0xc, OMAP1510_LB_MMU_CAM_L); omap_writel(physaddr >> 16, OMAP1510_LB_MMU_RAM_H); omap_writel((physaddr & 0x0000fc00) | 0x300, OMAP1510_LB_MMU_RAM_L); @@ -152,6 +158,10 @@ return 0; } +#else +#define omap_1510_local_bus_power(x) {} +#define omap_1510_local_bus_init() {} +#endif #ifdef CONFIG_USB_OTG @@ -173,13 +183,14 @@ /*-------------------------------------------------------------------------*/ -static int omap_start_hc(struct ohci_hcd *ohci, struct platform_device *pdev) +static int ohci_omap_init(struct usb_hcd *hcd) { - struct omap_usb_config *config = pdev->dev.platform_data; + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + struct omap_usb_config *config = hcd->self.controller->platform_data; int need_transceiver = (config->otg != 0); int ret; - dev_dbg(&pdev->dev, "starting USB Controller\n"); + dev_dbg(hcd->self.controller, "starting USB Controller\n"); if (config->otg) { ohci_to_hcd(ohci)->self.otg_port = config->otg; @@ -200,7 +211,7 @@ if (ohci->transceiver) { int status = otg_set_host(ohci->transceiver, &ohci_to_hcd(ohci)->self); - dev_dbg(&pdev->dev, "init %s transceiver, status %d\n", + dev_dbg(hcd->self.controller, "init %s transceiver, status %d\n", ohci->transceiver->label, status); if (status) { if (ohci->transceiver) @@ -208,7 +219,7 @@ return status; } } else { - dev_err(&pdev->dev, "can't find transceiver\n"); + dev_err(hcd->self.controller, "can't find transceiver\n"); return -ENODEV; } } @@ -247,6 +258,10 @@ } ohci_writel(ohci, rh, &ohci->regs->roothub.a); distrust_firmware = 0; + } else if (machine_is_nokia770()) { + /* We require a self-powered hub, which should have + * plenty of power. */ + ohci_to_hcd(ohci)->power_budget = 0; } /* FIXME khubd hub requests should manage power switching */ @@ -260,21 +275,15 @@ return 0; } -static void omap_stop_hc(struct platform_device *pdev) +static void ohci_omap_stop(struct usb_hcd *hcd) { - dev_dbg(&pdev->dev, "stopping USB Controller\n"); + dev_dbg(hcd->self.controller, "stopping USB Controller\n"); omap_ohci_clock_power(0); } /*-------------------------------------------------------------------------*/ -void usb_hcd_omap_remove (struct usb_hcd *, struct platform_device *); - -/* configure so an HC device and id are always provided */ -/* always called with process context; sleeping is OK */ - - /** * usb_hcd_omap_probe - initialize OMAP-based HCDs * Context: !in_interrupt() @@ -283,7 +292,7 @@ * then invokes the start() method for the HCD associated with it * through the hotplug entry's driver_data. */ -int usb_hcd_omap_probe (const struct hc_driver *driver, +static int usb_hcd_omap_probe (const struct hc_driver *driver, struct platform_device *pdev) { int retval, irq; @@ -291,12 +300,12 @@ struct ohci_hcd *ohci; if (pdev->num_resources != 2) { - printk(KERN_ERR "hcd probe: invalid num_resources: %i\n", + printk(KERN_ERR "hcd probe: invalid num_resources: %i\n", pdev->num_resources); return -ENODEV; } - if (pdev->resource[0].flags != IORESOURCE_MEM + if (pdev->resource[0].flags != IORESOURCE_MEM || pdev->resource[1].flags != IORESOURCE_IRQ) { printk(KERN_ERR "hcd probe: invalid resource type\n"); return -ENODEV; @@ -306,6 +315,17 @@ if (IS_ERR(usb_host_ck)) return PTR_ERR(usb_host_ck); + if (!cpu_is_omap1510()) + usb_dc_ck = clk_get(0, "usb_dc_ck"); + else + usb_dc_ck = clk_get(0, "lb_ck"); + + if (IS_ERR(usb_dc_ck)) { + clk_put(usb_host_ck); + return PTR_ERR(usb_dc_ck); + } + + hcd = usb_create_hcd (driver, &pdev->dev, pdev->dev.bus_id); if (!hcd) { retval = -ENOMEM; @@ -325,9 +345,8 @@ ohci = hcd_to_ohci(hcd); ohci_hcd_init(ohci); - retval = omap_start_hc(ohci, pdev); - if (retval < 0) - goto err2; + host_initialized = 0; + host_enabled = 1; irq = platform_get_irq(pdev, 0); if (irq < 0) { @@ -335,15 +354,21 @@ goto err2; } retval = usb_add_hcd(hcd, irq, IRQF_DISABLED); - if (retval == 0) - return retval; + if (retval) + goto err2; - omap_stop_hc(pdev); + host_initialized = 1; + + if (!host_enabled) + omap_ohci_clock_power(0); + + return 0; err2: release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err1: usb_put_hcd(hcd); err0: + clk_put(usb_dc_ck); clk_put(usb_host_ck); return retval; } @@ -359,31 +384,41 @@ * Reverses the effect of usb_hcd_omap_probe(), first invoking * the HCD's stop() method. It is always called from a thread * context, normally "rmmod", "apmd", or something similar. - * */ -void usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev) +static inline void +usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev) { + struct ohci_hcd *ohci = hcd_to_ohci (hcd); + usb_remove_hcd(hcd); + if (ohci->transceiver) { + (void) otg_set_host(ohci->transceiver, 0); + put_device(ohci->transceiver->dev); + } if (machine_is_omap_osk()) omap_free_gpio(9); - omap_stop_hc(pdev); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); + clk_put(usb_dc_ck); clk_put(usb_host_ck); } /*-------------------------------------------------------------------------*/ -static int __devinit +static int ohci_omap_start (struct usb_hcd *hcd) { struct omap_usb_config *config; struct ohci_hcd *ohci = hcd_to_ohci (hcd); int ret; + if (!host_enabled) + return 0; config = hcd->self.controller->platform_data; - if (config->otg || config->rwc) + if (config->otg || config->rwc) { + ohci->hc_control = OHCI_CTRL_RWC; writel(OHCI_CTRL_RWC, &ohci->regs->control); + } if ((ret = ohci_run (ohci)) < 0) { dev_err(hcd->self.controller, "can't start\n"); @@ -409,8 +444,10 @@ /* * basic lifecycle operations */ + .reset = ohci_omap_init, .start = ohci_omap_start, - .stop = ohci_stop, + .stop = ohci_omap_stop, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -429,6 +466,7 @@ */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -446,13 +484,8 @@ static int ohci_hcd_omap_drv_remove(struct platform_device *dev) { struct usb_hcd *hcd = platform_get_drvdata(dev); - struct ohci_hcd *ohci = hcd_to_ohci (hcd); usb_hcd_omap_remove(hcd, dev); - if (ohci->transceiver) { - (void) otg_set_host(ohci->transceiver, 0); - put_device(ohci->transceiver->dev); - } platform_set_drvdata(dev, NULL); return 0; @@ -472,7 +505,7 @@ omap_ohci_clock_power(0); ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED; - dev->power.power_state = PMSG_SUSPEND; + dev->dev.power.power_state = PMSG_SUSPEND; return 0; } @@ -485,8 +518,8 @@ ohci->next_statechange = jiffies; omap_ohci_clock_power(1); - dev->power.power_state = PMSG_ON; - usb_hcd_resume_root_hub(dev_get_drvdata(dev)); + dev->dev.power.power_state = PMSG_ON; + usb_hcd_resume_root_hub(platform_get_drvdata(dev)); return 0; } @@ -500,6 +533,7 @@ static struct platform_driver ohci_hcd_omap_driver = { .probe = ohci_hcd_omap_drv_probe, .remove = ohci_hcd_omap_drv_remove, + .shutdown = usb_hcd_platform_shutdown, #ifdef CONFIG_PM .suspend = ohci_omap_suspend, .resume = ohci_omap_resume,
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index b268537..3732db7 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c
@@ -135,6 +135,11 @@ } ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable); (void)ohci_readl(ohci, &ohci->regs->intrdisable); + + /* make sure snapshot being resumed re-enumerates everything */ + if (message.event == PM_EVENT_PRETHAW) + ohci_usb_reset(ohci); + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); bail: spin_unlock_irqrestore (&ohci->lock, flags); @@ -171,11 +176,14 @@ */ .reset = ohci_pci_reset, .start = ohci_pci_start, + .stop = ohci_stop, + .shutdown = ohci_shutdown, + #ifdef CONFIG_PM + /* these suspend/resume entries are for upstream PCI glue ONLY */ .suspend = ohci_pci_suspend, .resume = ohci_pci_resume, #endif - .stop = ohci_stop, /* * managing i/o requests and associated device resources @@ -194,6 +202,7 @@ */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -224,6 +233,8 @@ .suspend = usb_hcd_pci_suspend, .resume = usb_hcd_pci_resume, #endif + + .shutdown = usb_hcd_pci_shutdown, };
diff --git a/drivers/usb/host/ohci-pnx4008.c b/drivers/usb/host/ohci-pnx4008.c new file mode 100644 index 0000000..82cb22f --- /dev/null +++ b/drivers/usb/host/ohci-pnx4008.c
@@ -0,0 +1,476 @@ +/* + * drivers/usb/host/ohci-pnx4008.c + * + * driver for Philips PNX4008 USB Host + * + * Authors: Dmitry Chigirev <source@mvista.com> + * Vitaly Wool <vitalywool@gmail.com> + * + * register initialization is based on code examples provided by Philips + * Copyright (c) 2005 Koninklijke Philips Electronics N.V. + * + * NOTE: This driver does not have suspend/resume functionality + * This driver is intended for engineering development purposes only + * + * 2005-2006 (c) MontaVista Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + */ +#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/i2c.h> + +#include <asm/hardware.h> +#include <asm/io.h> +#include <asm/mach-types.h> + +#include <asm/arch/platform.h> +#include <asm/arch/irqs.h> +#include <asm/arch/gpio.h> + +#define USB_CTRL IO_ADDRESS(PNX4008_PWRMAN_BASE + 0x64) + +/* USB_CTRL bit defines */ +#define USB_SLAVE_HCLK_EN (1 << 24) +#define USB_HOST_NEED_CLK_EN (1 << 21) + +#define USB_OTG_CLK_CTRL IO_ADDRESS(PNX4008_USB_CONFIG_BASE + 0xFF4) +#define USB_OTG_CLK_STAT IO_ADDRESS(PNX4008_USB_CONFIG_BASE + 0xFF8) + +/* USB_OTG_CLK_CTRL bit defines */ +#define AHB_M_CLOCK_ON (1 << 4) +#define OTG_CLOCK_ON (1 << 3) +#define I2C_CLOCK_ON (1 << 2) +#define DEV_CLOCK_ON (1 << 1) +#define HOST_CLOCK_ON (1 << 0) + +#define USB_OTG_STAT_CONTROL IO_ADDRESS(PNX4008_USB_CONFIG_BASE + 0x110) + +/* USB_OTG_STAT_CONTROL bit defines */ +#define TRANSPARENT_I2C_EN (1 << 7) +#define HOST_EN (1 << 0) + +/* ISP1301 USB transceiver I2C registers */ +#define ISP1301_MODE_CONTROL_1 0x04 /* u8 read, set, +1 clear */ + +#define MC1_SPEED_REG (1 << 0) +#define MC1_SUSPEND_REG (1 << 1) +#define MC1_DAT_SE0 (1 << 2) +#define MC1_TRANSPARENT (1 << 3) +#define MC1_BDIS_ACON_EN (1 << 4) +#define MC1_OE_INT_EN (1 << 5) +#define MC1_UART_EN (1 << 6) +#define MC1_MASK 0x7f + +#define ISP1301_MODE_CONTROL_2 0x12 /* u8 read, set, +1 clear */ + +#define MC2_GLOBAL_PWR_DN (1 << 0) +#define MC2_SPD_SUSP_CTRL (1 << 1) +#define MC2_BI_DI (1 << 2) +#define MC2_TRANSP_BDIR0 (1 << 3) +#define MC2_TRANSP_BDIR1 (1 << 4) +#define MC2_AUDIO_EN (1 << 5) +#define MC2_PSW_EN (1 << 6) +#define MC2_EN2V7 (1 << 7) + +#define ISP1301_OTG_CONTROL_1 0x06 /* u8 read, set, +1 clear */ +# define OTG1_DP_PULLUP (1 << 0) +# define OTG1_DM_PULLUP (1 << 1) +# define OTG1_DP_PULLDOWN (1 << 2) +# define OTG1_DM_PULLDOWN (1 << 3) +# define OTG1_ID_PULLDOWN (1 << 4) +# define OTG1_VBUS_DRV (1 << 5) +# define OTG1_VBUS_DISCHRG (1 << 6) +# define OTG1_VBUS_CHRG (1 << 7) +#define ISP1301_OTG_STATUS 0x10 /* u8 readonly */ +# define OTG_B_SESS_END (1 << 6) +# define OTG_B_SESS_VLD (1 << 7) + +#define ISP1301_I2C_ADDR 0x2C + +#define ISP1301_I2C_MODE_CONTROL_1 0x4 +#define ISP1301_I2C_MODE_CONTROL_2 0x12 +#define ISP1301_I2C_OTG_CONTROL_1 0x6 +#define ISP1301_I2C_OTG_CONTROL_2 0x10 +#define ISP1301_I2C_INTERRUPT_SOURCE 0x8 +#define ISP1301_I2C_INTERRUPT_LATCH 0xA +#define ISP1301_I2C_INTERRUPT_FALLING 0xC +#define ISP1301_I2C_INTERRUPT_RISING 0xE +#define ISP1301_I2C_REG_CLEAR_ADDR 1 + +struct i2c_driver isp1301_driver; +struct i2c_client *isp1301_i2c_client; + +extern int usb_disabled(void); +extern int ocpi_enable(void); + +static struct clk *usb_clk; + +static int isp1301_probe(struct i2c_adapter *adap); +static int isp1301_detach(struct i2c_client *client); +static int isp1301_command(struct i2c_client *client, unsigned int cmd, + void *arg); + +static unsigned short normal_i2c[] = + { ISP1301_I2C_ADDR, ISP1301_I2C_ADDR + 1, I2C_CLIENT_END }; +static unsigned short dummy_i2c_addrlist[] = { I2C_CLIENT_END }; + +static struct i2c_client_address_data addr_data = { + .normal_i2c = normal_i2c, + .probe = dummy_i2c_addrlist, + .ignore = dummy_i2c_addrlist, +}; + +struct i2c_driver isp1301_driver = { + .id = I2C_DRIVERID_I2CDEV, /* Fake Id */ + .class = I2C_CLASS_HWMON, + .attach_adapter = isp1301_probe, + .detach_client = isp1301_detach, + .command = isp1301_command +}; + +static int isp1301_attach(struct i2c_adapter *adap, int addr, int kind) +{ + struct i2c_client *c; + + c = (struct i2c_client *)kzalloc(sizeof(*c), SLAB_KERNEL); + + if (!c) + return -ENOMEM; + + strcpy(c->name, "isp1301"); + c->flags = 0; + c->addr = addr; + c->adapter = adap; + c->driver = &isp1301_driver; + + isp1301_i2c_client = c; + + return i2c_attach_client(c); +} + +static int isp1301_probe(struct i2c_adapter *adap) +{ + return i2c_probe(adap, &addr_data, isp1301_attach); +} + +static int isp1301_detach(struct i2c_client *client) +{ + i2c_detach_client(client); + kfree(isp1301_i2c_client); + return 0; +} + +/* No commands defined */ +static int isp1301_command(struct i2c_client *client, unsigned int cmd, + void *arg) +{ + return 0; +} + +static void i2c_write(u8 buf, u8 subaddr) +{ + char tmpbuf[2]; + + tmpbuf[0] = subaddr; /*register number */ + tmpbuf[1] = buf; /*register data */ + i2c_master_send(isp1301_i2c_client, &tmpbuf[0], 2); +} + +static void isp1301_configure(void) +{ + /* PNX4008 only supports DAT_SE0 USB mode */ + /* PNX4008 R2A requires setting the MAX603 to output 3.6V */ + /* Power up externel charge-pump */ + + i2c_write(MC1_DAT_SE0 | MC1_SPEED_REG, ISP1301_I2C_MODE_CONTROL_1); + i2c_write(~(MC1_DAT_SE0 | MC1_SPEED_REG), + ISP1301_I2C_MODE_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR); + i2c_write(MC2_BI_DI | MC2_PSW_EN | MC2_SPD_SUSP_CTRL, + ISP1301_I2C_MODE_CONTROL_2); + i2c_write(~(MC2_BI_DI | MC2_PSW_EN | MC2_SPD_SUSP_CTRL), + ISP1301_I2C_MODE_CONTROL_2 | ISP1301_I2C_REG_CLEAR_ADDR); + i2c_write(OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN, + ISP1301_I2C_OTG_CONTROL_1); + i2c_write(~(OTG1_DM_PULLDOWN | OTG1_DP_PULLDOWN), + ISP1301_I2C_OTG_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR); + i2c_write(0xFF, + ISP1301_I2C_INTERRUPT_LATCH | ISP1301_I2C_REG_CLEAR_ADDR); + i2c_write(0xFF, + ISP1301_I2C_INTERRUPT_FALLING | ISP1301_I2C_REG_CLEAR_ADDR); + i2c_write(0xFF, + ISP1301_I2C_INTERRUPT_RISING | ISP1301_I2C_REG_CLEAR_ADDR); + +} + +static inline void isp1301_vbus_on(void) +{ + i2c_write(OTG1_VBUS_DRV, ISP1301_I2C_OTG_CONTROL_1); +} + +static inline void isp1301_vbus_off(void) +{ + i2c_write(OTG1_VBUS_DRV, + ISP1301_I2C_OTG_CONTROL_1 | ISP1301_I2C_REG_CLEAR_ADDR); +} + +static void pnx4008_start_hc(void) +{ + unsigned long tmp = __raw_readl(USB_OTG_STAT_CONTROL) | HOST_EN; + __raw_writel(tmp, USB_OTG_STAT_CONTROL); + isp1301_vbus_on(); +} + +static void pnx4008_stop_hc(void) +{ + unsigned long tmp; + isp1301_vbus_off(); + tmp = __raw_readl(USB_OTG_STAT_CONTROL) & ~HOST_EN; + __raw_writel(tmp, USB_OTG_STAT_CONTROL); +} + +static int __devinit ohci_pnx4008_start(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + int ret; + + if ((ret = ohci_init(ohci)) < 0) + return ret; + + if ((ret = ohci_run(ohci)) < 0) { + dev_err(hcd->self.controller, "can't start\n"); + ohci_stop(hcd); + return ret; + } + return 0; +} + +static const struct hc_driver ohci_pnx4008_hc_driver = { + .description = hcd_name, + .product_desc = "pnx4008 OHCI", + + /* + * generic hardware linkage + */ + .irq = ohci_irq, + .flags = HCD_USB11 | HCD_MEMORY, + + .hcd_priv_size = sizeof(struct ohci_hcd), + /* + * basic lifecycle operations + */ + .start = ohci_pnx4008_start, + .stop = ohci_stop, + + /* + * managing i/o requests and associated device resources + */ + .urb_enqueue = ohci_urb_enqueue, + .urb_dequeue = ohci_urb_dequeue, + .endpoint_disable = ohci_endpoint_disable, + + /* + * scheduling support + */ + .get_frame_number = ohci_get_frame, + + /* + * root hub support + */ + .hub_status_data = ohci_hub_status_data, + .hub_control = ohci_hub_control, + + .start_port_reset = ohci_start_port_reset, +}; + +#define USB_CLOCK_MASK (AHB_M_CLOCK_ON| OTG_CLOCK_ON | HOST_CLOCK_ON | I2C_CLOCK_ON) + +static void pnx4008_set_usb_bits(void) +{ + start_int_set_falling_edge(SE_USB_OTG_ATX_INT_N); + start_int_ack(SE_USB_OTG_ATX_INT_N); + start_int_umask(SE_USB_OTG_ATX_INT_N); + + start_int_set_rising_edge(SE_USB_OTG_TIMER_INT); + start_int_ack(SE_USB_OTG_TIMER_INT); + start_int_umask(SE_USB_OTG_TIMER_INT); + + start_int_set_rising_edge(SE_USB_I2C_INT); + start_int_ack(SE_USB_I2C_INT); + start_int_umask(SE_USB_I2C_INT); + + start_int_set_rising_edge(SE_USB_INT); + start_int_ack(SE_USB_INT); + start_int_umask(SE_USB_INT); + + start_int_set_rising_edge(SE_USB_NEED_CLK_INT); + start_int_ack(SE_USB_NEED_CLK_INT); + start_int_umask(SE_USB_NEED_CLK_INT); + + start_int_set_rising_edge(SE_USB_AHB_NEED_CLK_INT); + start_int_ack(SE_USB_AHB_NEED_CLK_INT); + start_int_umask(SE_USB_AHB_NEED_CLK_INT); +} + +static void pnx4008_unset_usb_bits(void) +{ + start_int_mask(SE_USB_OTG_ATX_INT_N); + start_int_mask(SE_USB_OTG_TIMER_INT); + start_int_mask(SE_USB_I2C_INT); + start_int_mask(SE_USB_INT); + start_int_mask(SE_USB_NEED_CLK_INT); + start_int_mask(SE_USB_AHB_NEED_CLK_INT); +} + +static int __devinit usb_hcd_pnx4008_probe(struct platform_device *pdev) +{ + struct usb_hcd *hcd = 0; + struct ohci_hcd *ohci; + const struct hc_driver *driver = &ohci_pnx4008_hc_driver; + + int ret = 0, irq; + + dev_dbg(&pdev->dev, "%s: " DRIVER_INFO " (pnx4008)\n", hcd_name); + if (usb_disabled()) { + err("USB is disabled"); + ret = -ENODEV; + goto out; + } + + if (pdev->num_resources != 2 + || pdev->resource[0].flags != IORESOURCE_MEM + || pdev->resource[1].flags != IORESOURCE_IRQ) { + err("Invalid resource configuration"); + ret = -ENODEV; + goto out; + } + + /* Enable AHB slave USB clock, needed for further USB clock control */ + __raw_writel(USB_SLAVE_HCLK_EN | (1 << 19), USB_CTRL); + + ret = i2c_add_driver(&isp1301_driver); + if (ret < 0) { + err("failed to connect I2C to ISP1301 USB Transceiver"); + goto out; + } + + isp1301_configure(); + + /* Enable USB PLL */ + usb_clk = clk_get(&pdev->dev, "ck_pll5"); + if (IS_ERR(usb_clk)) { + err("failed to acquire USB PLL"); + ret = PTR_ERR(usb_clk); + goto out1; + } + + ret = clk_enable(usb_clk); + if (ret < 0) { + err("failed to start USB PLL"); + goto out2; + } + + ret = clk_set_rate(usb_clk, 48000); + if (ret < 0) { + err("failed to set USB clock rate"); + goto out3; + } + + __raw_writel(__raw_readl(USB_CTRL) | USB_HOST_NEED_CLK_EN, USB_CTRL); + + /* Set to enable all needed USB clocks */ + __raw_writel(USB_CLOCK_MASK, USB_OTG_CLK_CTRL); + + while ((__raw_readl(USB_OTG_CLK_STAT) & USB_CLOCK_MASK) != + USB_CLOCK_MASK) ; + + hcd = usb_create_hcd (driver, &pdev->dev, pdev->dev.bus_id); + if (!hcd) { + err("Failed to allocate HC buffer"); + ret = -ENOMEM; + goto out3; + } + + /* Set all USB bits in the Start Enable register */ + pnx4008_set_usb_bits(); + + hcd->rsrc_start = pdev->resource[0].start; + hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1; + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { + dev_dbg(&pdev->dev, "request_mem_region failed\n"); + ret = -ENOMEM; + goto out4; + } + hcd->regs = (void __iomem *)pdev->resource[0].start; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + ret = -ENXIO; + goto out4; + } + + hcd->self.hcpriv = (void *)hcd; + + pnx4008_start_hc(); + platform_set_drvdata(pdev, hcd); + ohci = hcd_to_ohci(hcd); + ohci_hcd_init(ohci); + + dev_info(&pdev->dev, "at 0x%p, irq %d\n", hcd->regs, hcd->irq); + ret = usb_add_hcd(hcd, irq, SA_INTERRUPT); + if (ret == 0) + return ret; + + pnx4008_stop_hc(); +out4: + pnx4008_unset_usb_bits(); + usb_put_hcd(hcd); +out3: + clk_disable(usb_clk); +out2: + clk_put(usb_clk); +out1: + i2c_del_driver(&isp1301_driver); +out: + return ret; +} + +static int usb_hcd_pnx4008_remove(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + + usb_remove_hcd(hcd); + pnx4008_stop_hc(); + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); + pnx4008_unset_usb_bits(); + clk_disable(usb_clk); + clk_put(usb_clk); + i2c_del_driver(&isp1301_driver); + + platform_set_drvdata(pdev, NULL); + + return 0; +} + +static struct platform_driver usb_hcd_pnx4008_driver = { + .driver = { + .name = "usb-ohci", + }, + .probe = usb_hcd_pnx4008_probe, + .remove = usb_hcd_pnx4008_remove, +}; + +static int __init usb_hcd_pnx4008_init(void) +{ + return platform_driver_register(&usb_hcd_pnx4008_driver); +} + +static void __exit usb_hcd_pnx4008_cleanup(void) +{ + return platform_driver_unregister(&usb_hcd_pnx4008_driver); +} + +module_init(usb_hcd_pnx4008_init); +module_exit(usb_hcd_pnx4008_cleanup);
diff --git a/drivers/usb/host/ohci-ppc-soc.c b/drivers/usb/host/ohci-ppc-soc.c index 9fe56ff..d9d1ae2 100644 --- a/drivers/usb/host/ohci-ppc-soc.c +++ b/drivers/usb/host/ohci-ppc-soc.c
@@ -148,6 +148,7 @@ */ .start = ohci_ppc_soc_start, .stop = ohci_stop, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -166,6 +167,7 @@ */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -195,6 +197,7 @@ static struct platform_driver ohci_hcd_ppc_soc_driver = { .probe = ohci_hcd_ppc_soc_drv_probe, .remove = ohci_hcd_ppc_soc_drv_remove, + .shutdown = usb_hcd_platform_shutdown, #ifdef CONFIG_PM /*.suspend = ohci_hcd_ppc_soc_drv_suspend,*/ /*.resume = ohci_hcd_ppc_soc_drv_resume,*/
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 6f559e1..e176b04 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c
@@ -270,6 +270,7 @@ */ .start = ohci_pxa27x_start, .stop = ohci_stop, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -288,6 +289,7 @@ */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -357,6 +359,7 @@ static struct platform_driver ohci_hcd_pxa27x_driver = { .probe = ohci_hcd_pxa27x_drv_probe, .remove = ohci_hcd_pxa27x_drv_remove, + .shutdown = usb_hcd_platform_shutdown, #ifdef CONFIG_PM .suspend = ohci_hcd_pxa27x_drv_suspend, .resume = ohci_hcd_pxa27x_drv_resume,
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c index d2fc696..59e4364 100644 --- a/drivers/usb/host/ohci-s3c2410.c +++ b/drivers/usb/host/ohci-s3c2410.c
@@ -370,7 +370,7 @@ goto err_mem; } - usb_clk = clk_get(&dev->dev, "upll"); + usb_clk = clk_get(&dev->dev, "usb-bus-host"); if (IS_ERR(usb_clk)) { dev_err(&dev->dev, "cannot get usb-host clock\n"); retval = -ENOENT; @@ -447,6 +447,7 @@ */ .start = ohci_s3c2410_start, .stop = ohci_stop, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -465,6 +466,7 @@ */ .hub_status_data = ohci_s3c2410_hub_status_data, .hub_control = ohci_s3c2410_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume, @@ -490,6 +492,7 @@ static struct platform_driver ohci_hcd_s3c2410_driver = { .probe = ohci_hcd_s3c2410_drv_probe, .remove = ohci_hcd_s3c2410_drv_remove, + .shutdown = usb_hcd_platform_shutdown, /*.suspend = ohci_hcd_s3c2410_drv_suspend, */ /*.resume = ohci_hcd_s3c2410_drv_resume, */ .driver = {
diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c index ce3de10..71371de 100644 --- a/drivers/usb/host/ohci-sa1111.c +++ b/drivers/usb/host/ohci-sa1111.c
@@ -212,10 +212,6 @@ * basic lifecycle operations */ .start = ohci_sa1111_start, -#ifdef CONFIG_PM - /* suspend: ohci_sa1111_suspend, -- tbd */ - /* resume: ohci_sa1111_resume, -- tbd */ -#endif .stop = ohci_stop, /* @@ -235,6 +231,7 @@ */ .hub_status_data = ohci_hub_status_data, .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, #ifdef CONFIG_PM .bus_suspend = ohci_bus_suspend, .bus_resume = ohci_bus_resume,
diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h index caacf14..93fdc3c 100644 --- a/drivers/usb/host/ohci.h +++ b/drivers/usb/host/ohci.h
@@ -159,7 +159,7 @@ /* Bit Stuff */ -EPROTO, /* Data Togg */ -EILSEQ, /* Stall */ -EPIPE, - /* DevNotResp */ -ETIMEDOUT, + /* DevNotResp */ -ETIME, /* PIDCheck */ -EPROTO, /* UnExpPID */ -EPROTO, /* DataOver */ -EOVERFLOW, @@ -389,8 +389,6 @@ unsigned long next_statechange; /* suspend/resume */ u32 fminterval; /* saved register */ - struct notifier_block reboot_notifier; - unsigned long flags; /* for HC bugs */ #define OHCI_QUIRK_AMD756 0x01 /* erratum #4 */ #define OHCI_QUIRK_SUPERIO 0x02 /* natsemi */
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index fa34092..3a586aa 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c
@@ -597,7 +597,7 @@ /* error? retry, until "3 strikes" */ } else if (++ep->error_count >= 3) { if (status & SL11H_STATMASK_TMOUT) - urbstat = -ETIMEDOUT; + urbstat = -ETIME; else if (status & SL11H_STATMASK_OVF) urbstat = -EOVERFLOW; else @@ -1517,7 +1517,7 @@ return single_open(file, proc_sl811h_show, PDE(inode)->data); } -static struct file_operations proc_ops = { +static const struct file_operations proc_ops = { .open = proc_sl811h_open, .read = seq_read, .llseek = seq_lseek, @@ -1783,10 +1783,15 @@ struct sl811 *sl811 = hcd_to_sl811(hcd); int retval = 0; - if (state.event == PM_EVENT_FREEZE) + switch (state.event) { + case PM_EVENT_FREEZE: retval = sl811h_bus_suspend(hcd); - else if (state.event == PM_EVENT_SUSPEND) + break; + case PM_EVENT_SUSPEND: + case PM_EVENT_PRETHAW: /* explicitly discard hw state */ port_power(sl811, 0); + break; + } if (retval == 0) dev->dev.power.power_state = state; return retval;
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c new file mode 100644 index 0000000..cb2e2a6 --- /dev/null +++ b/drivers/usb/host/u132-hcd.c
@@ -0,0 +1,3295 @@ +/* +* Host Controller Driver for the Elan Digital Systems U132 adapter +* +* Copyright(C) 2006 Elan Digital Systems Limited +* http://www.elandigitalsystems.com +* +* Author and Maintainer - Tony Olech - Elan Digital Systems +* tony.olech@elandigitalsystems.com +* +* This program is free software;you can redistribute it and/or +* modify it under the terms of the GNU General Public License as +* published by the Free Software Foundation, version 2. +* +* +* This driver was written by Tony Olech(tony.olech@elandigitalsystems.com) +* based on various USB host drivers in the 2.6.15 linux kernel +* with constant reference to the 3rd Edition of Linux Device Drivers +* published by O'Reilly +* +* The U132 adapter is a USB to CardBus adapter specifically designed +* for PC cards that contain an OHCI host controller. Typical PC cards +* are the Orange Mobile 3G Option GlobeTrotter Fusion card. +* +* The U132 adapter will *NOT *work with PC cards that do not contain +* an OHCI controller. A simple way to test whether a PC card has an +* OHCI controller as an interface is to insert the PC card directly +* into a laptop(or desktop) with a CardBus slot and if "lspci" shows +* a new USB controller and "lsusb -v" shows a new OHCI Host Controller +* then there is a good chance that the U132 adapter will support the +* PC card.(you also need the specific client driver for the PC card) +* +* Please inform the Author and Maintainer about any PC cards that +* contain OHCI Host Controller and work when directly connected to +* an embedded CardBus slot but do not work when they are connected +* via an ELAN U132 adapter. +* +*/ +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/delay.h> +#include <linux/ioport.h> +#include <linux/sched.h> +#include <linux/slab.h> +#include <linux/smp_lock.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/timer.h> +#include <linux/list.h> +#include <linux/interrupt.h> +#include <linux/usb.h> +#include <linux/workqueue.h> +#include <linux/platform_device.h> +#include <linux/pci_ids.h> +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/system.h> +#include <asm/byteorder.h> +#include "../core/hcd.h" +#include "ohci.h" +#define OHCI_CONTROL_INIT OHCI_CTRL_CBSR +#define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \ + OHCI_INTR_WDH) +MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited"); +MODULE_DESCRIPTION("U132 USB Host Controller Driver"); +MODULE_LICENSE("GPL"); +#define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444) +INT_MODULE_PARM(testing, 0); +/* Some boards misreport power switching/overcurrent*/ +static int distrust_firmware = 1; +module_param(distrust_firmware, bool, 0); +MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren" + "t setup"); +DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait); +/* +* u132_module_lock exists to protect access to global variables +* +*/ +static struct semaphore u132_module_lock; +static int u132_exiting = 0; +static int u132_instances = 0; +static struct list_head u132_static_list; +/* +* end of the global variables protected by u132_module_lock +*/ +static struct workqueue_struct *workqueue; +#define MAX_U132_PORTS 7 +#define MAX_U132_ADDRS 128 +#define MAX_U132_UDEVS 4 +#define MAX_U132_ENDPS 100 +#define MAX_U132_RINGS 4 +static const char *cc_to_text[16] = { + "No Error ", + "CRC Error ", + "Bit Stuff ", + "Data Togg ", + "Stall ", + "DevNotResp ", + "PIDCheck ", + "UnExpPID ", + "DataOver ", + "DataUnder ", + "(for hw) ", + "(for hw) ", + "BufferOver ", + "BuffUnder ", + "(for HCD) ", + "(for HCD) " +}; +struct u132_port { + struct u132 *u132; + int reset; + int enable; + int power; + int Status; +}; +struct u132_addr { + u8 address; +}; +struct u132_udev { + struct kref kref; + struct usb_device *usb_device; + u8 enumeration; + u8 udev_number; + u8 usb_addr; + u8 portnumber; + u8 endp_number_in[16]; + u8 endp_number_out[16]; +}; +#define ENDP_QUEUE_SHIFT 3 +#define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT) +#define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1) +struct u132_urbq { + struct list_head urb_more; + struct urb *urb; +}; +struct u132_spin { + spinlock_t slock; +}; +struct u132_endp { + struct kref kref; + u8 udev_number; + u8 endp_number; + u8 usb_addr; + u8 usb_endp; + struct u132 *u132; + struct list_head endp_ring; + struct u132_ring *ring; + unsigned toggle_bits:2; + unsigned active:1; + unsigned delayed:1; + unsigned input:1; + unsigned output:1; + unsigned pipetype:2; + unsigned dequeueing:1; + unsigned edset_flush:1; + unsigned spare_bits:14; + unsigned long jiffies; + struct usb_host_endpoint *hep; + struct u132_spin queue_lock; + u16 queue_size; + u16 queue_last; + u16 queue_next; + struct urb *urb_list[ENDP_QUEUE_SIZE]; + struct list_head urb_more; + struct work_struct scheduler; +}; +struct u132_ring { + unsigned in_use:1; + unsigned length:7; + u8 number; + struct u132 *u132; + struct u132_endp *curr_endp; + struct work_struct scheduler; +}; +#define OHCI_QUIRK_AMD756 0x01 +#define OHCI_QUIRK_SUPERIO 0x02 +#define OHCI_QUIRK_INITRESET 0x04 +#define OHCI_BIG_ENDIAN 0x08 +#define OHCI_QUIRK_ZFMICRO 0x10 +struct u132 { + struct kref kref; + struct list_head u132_list; + struct semaphore sw_lock; + struct semaphore scheduler_lock; + struct u132_platform_data *board; + struct platform_device *platform_dev; + struct u132_ring ring[MAX_U132_RINGS]; + int sequence_num; + int going; + int power; + int reset; + int num_ports; + u32 hc_control; + u32 hc_fminterval; + u32 hc_roothub_status; + u32 hc_roothub_a; + u32 hc_roothub_portstatus[MAX_ROOT_PORTS]; + int flags; + unsigned long next_statechange; + struct work_struct monitor; + int num_endpoints; + struct u132_addr addr[MAX_U132_ADDRS]; + struct u132_udev udev[MAX_U132_UDEVS]; + struct u132_port port[MAX_U132_PORTS]; + struct u132_endp *endp[MAX_U132_ENDPS]; +}; +int usb_ftdi_elan_read_reg(struct platform_device *pdev, u32 *data); +int usb_ftdi_elan_read_pcimem(struct platform_device *pdev, u8 addressofs, + u8 width, u32 *data); +int usb_ftdi_elan_write_pcimem(struct platform_device *pdev, u8 addressofs, + u8 width, u32 data); +/* +* these can not be inlines because we need the structure offset!! +* Does anyone have a better way????? +*/ +#define u132_read_pcimem(u132, member, data) \ + usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \ + ohci_regs, member), 0, data); +#define u132_write_pcimem(u132, member, data) \ + usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ + ohci_regs, member), 0, data); +#define u132_write_pcimem_byte(u132, member, data) \ + usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ + ohci_regs, member), 0x0e, data); +static inline struct u132 *udev_to_u132(struct u132_udev *udev) +{ + u8 udev_number = udev->udev_number; + return container_of(udev, struct u132, udev[udev_number]); +} + +static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd) +{ + return (struct u132 *)(hcd->hcd_priv); +} + +static inline struct usb_hcd *u132_to_hcd(struct u132 *u132) +{ + return container_of((void *)u132, struct usb_hcd, hcd_priv); +} + +static inline void u132_disable(struct u132 *u132) +{ + u132_to_hcd(u132)->state = HC_STATE_HALT; +} + + +#define kref_to_u132(d) container_of(d, struct u132, kref) +#define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref) +#define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref) +#include "../misc/usb_u132.h" +static const char hcd_name[] = "u132_hcd"; +#define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \ + USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \ + USB_PORT_STAT_C_RESET) << 16) +static void u132_hcd_delete(struct kref *kref) +{ + struct u132 *u132 = kref_to_u132(kref); + struct platform_device *pdev = u132->platform_dev; + struct usb_hcd *hcd = u132_to_hcd(u132); + u132->going += 1; + down(&u132_module_lock); + list_del_init(&u132->u132_list); + u132_instances -= 1; + up(&u132_module_lock); + dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13" + "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev); + usb_put_hcd(hcd); +} + +static inline void u132_u132_put_kref(struct u132 *u132) +{ + kref_put(&u132->kref, u132_hcd_delete); +} + +static inline void u132_u132_init_kref(struct u132 *u132) +{ + kref_init(&u132->kref); +} + +static void u132_udev_delete(struct kref *kref) +{ + struct u132_udev *udev = kref_to_u132_udev(kref); + udev->udev_number = 0; + udev->usb_device = NULL; + udev->usb_addr = 0; + udev->enumeration = 0; +} + +static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev) +{ + kref_put(&udev->kref, u132_udev_delete); +} + +static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev) +{ + kref_get(&udev->kref); +} + +static inline void u132_udev_init_kref(struct u132 *u132, + struct u132_udev *udev) +{ + kref_init(&udev->kref); +} + +static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring) +{ + kref_put(&u132->kref, u132_hcd_delete); +} + +static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring, + unsigned int delta) +{ + if (delta > 0) { + if (queue_delayed_work(workqueue, &ring->scheduler, delta)) + return; + } else if (queue_work(workqueue, &ring->scheduler)) + return; + kref_put(&u132->kref, u132_hcd_delete); + return; +} + +static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring, + unsigned int delta) +{ + kref_get(&u132->kref); + u132_ring_requeue_work(u132, ring, delta); + return; +} + +static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring) +{ + if (cancel_delayed_work(&ring->scheduler)) { + kref_put(&u132->kref, u132_hcd_delete); + } +} + +static void u132_endp_delete(struct kref *kref) +{ + struct u132_endp *endp = kref_to_u132_endp(kref); + struct u132 *u132 = endp->u132; + u8 usb_addr = endp->usb_addr; + u8 usb_endp = endp->usb_endp; + u8 address = u132->addr[usb_addr].address; + struct u132_udev *udev = &u132->udev[address]; + u8 endp_number = endp->endp_number; + struct usb_host_endpoint *hep = endp->hep; + struct u132_ring *ring = endp->ring; + struct list_head *head = &endp->endp_ring; + ring->length -= 1; + if (endp == ring->curr_endp) { + if (list_empty(head)) { + ring->curr_endp = NULL; + list_del(head); + } else { + struct u132_endp *next_endp = list_entry(head->next, + struct u132_endp, endp_ring); + ring->curr_endp = next_endp; + list_del(head); + }} else + list_del(head); + if (endp->input) { + udev->endp_number_in[usb_endp] = 0; + u132_udev_put_kref(u132, udev); + } + if (endp->output) { + udev->endp_number_out[usb_endp] = 0; + u132_udev_put_kref(u132, udev); + } + u132->endp[endp_number - 1] = NULL; + hep->hcpriv = NULL; + kfree(endp); + u132_u132_put_kref(u132); +} + +static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp) +{ + kref_put(&endp->kref, u132_endp_delete); +} + +static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp) +{ + kref_get(&endp->kref); +} + +static inline void u132_endp_init_kref(struct u132 *u132, + struct u132_endp *endp) +{ + kref_init(&endp->kref); + kref_get(&u132->kref); +} + +static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp, + unsigned int delta) +{ + if (delta > 0) { + if (queue_delayed_work(workqueue, &endp->scheduler, delta)) + kref_get(&endp->kref); + } else if (queue_work(workqueue, &endp->scheduler)) + kref_get(&endp->kref); + return; +} + +static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp) +{ + if (cancel_delayed_work(&endp->scheduler)) + kref_put(&endp->kref, u132_endp_delete); +} + +static inline void u132_monitor_put_kref(struct u132 *u132) +{ + kref_put(&u132->kref, u132_hcd_delete); +} + +static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta) +{ + if (delta > 0) { + if (queue_delayed_work(workqueue, &u132->monitor, delta)) { + kref_get(&u132->kref); + } + } else if (queue_work(workqueue, &u132->monitor)) + kref_get(&u132->kref); + return; +} + +static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta) +{ + if (delta > 0) { + if (queue_delayed_work(workqueue, &u132->monitor, delta)) + return; + } else if (queue_work(workqueue, &u132->monitor)) + return; + kref_put(&u132->kref, u132_hcd_delete); + return; +} + +static void u132_monitor_cancel_work(struct u132 *u132) +{ + if (cancel_delayed_work(&u132->monitor)) + kref_put(&u132->kref, u132_hcd_delete); +} + +static int read_roothub_info(struct u132 *u132) +{ + u32 revision; + int retval; + retval = u132_read_pcimem(u132, revision, &revision); + if (retval) { + dev_err(&u132->platform_dev->dev, "error %d accessing device co" + "ntrol\n", retval); + return retval; + } else if ((revision & 0xFF) == 0x10) { + } else if ((revision & 0xFF) == 0x11) { + } else { + dev_err(&u132->platform_dev->dev, "device revision is not valid" + " %08X\n", revision); + return -ENODEV; + } + retval = u132_read_pcimem(u132, control, &u132->hc_control); + if (retval) { + dev_err(&u132->platform_dev->dev, "error %d accessing device co" + "ntrol\n", retval); + return retval; + } + retval = u132_read_pcimem(u132, roothub.status, + &u132->hc_roothub_status); + if (retval) { + dev_err(&u132->platform_dev->dev, "error %d accessing device re" + "g roothub.status\n", retval); + return retval; + } + retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a); + if (retval) { + dev_err(&u132->platform_dev->dev, "error %d accessing device re" + "g roothub.a\n", retval); + return retval; + } + { + int I = u132->num_ports; + int i = 0; + while (I-- > 0) { + retval = u132_read_pcimem(u132, roothub.portstatus[i], + &u132->hc_roothub_portstatus[i]); + if (retval) { + dev_err(&u132->platform_dev->dev, "error %d acc" + "essing device roothub.portstatus[%d]\n" + , retval, i); + return retval; + } else + i += 1; + } + } + return 0; +} + +static void u132_hcd_monitor_work(void *data) +{ + struct u132 *u132 = data; + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + u132_monitor_put_kref(u132); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed\n"); + u132_monitor_put_kref(u132); + return; + } else { + int retval; + down(&u132->sw_lock); + retval = read_roothub_info(u132); + if (retval) { + struct usb_hcd *hcd = u132_to_hcd(u132); + u132_disable(u132); + u132->going = 1; + up(&u132->sw_lock); + usb_hc_died(hcd); + ftdi_elan_gone_away(u132->platform_dev); + u132_monitor_put_kref(u132); + return; + } else { + u132_monitor_requeue_work(u132, 500); + up(&u132->sw_lock); + return; + } + } +} + +static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp, + struct urb *urb, int status) +{ + struct u132_ring *ring; + unsigned long irqs; + struct usb_hcd *hcd = u132_to_hcd(u132); + urb->error_count = 0; + urb->status = status; + urb->hcpriv = NULL; + spin_lock_irqsave(&endp->queue_lock.slock, irqs); + endp->queue_next += 1; + if (ENDP_QUEUE_SIZE > --endp->queue_size) { + endp->active = 0; + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + } else { + struct list_head *next = endp->urb_more.next; + struct u132_urbq *urbq = list_entry(next, struct u132_urbq, + urb_more); + list_del(next); + endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = + urbq->urb; + endp->active = 0; + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + kfree(urbq); + } down(&u132->scheduler_lock); + ring = endp->ring; + ring->in_use = 0; + u132_ring_cancel_work(u132, ring); + u132_ring_queue_work(u132, ring, 0); + up(&u132->scheduler_lock); + u132_endp_put_kref(u132, endp); + usb_hcd_giveback_urb(hcd, urb, NULL); + return; +} + +static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp, + struct urb *urb, int status) +{ + u132_endp_put_kref(u132, endp); +} + +static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp, + struct urb *urb, int status) +{ + unsigned long irqs; + struct usb_hcd *hcd = u132_to_hcd(u132); + urb->error_count = 0; + urb->status = status; + urb->hcpriv = NULL; + spin_lock_irqsave(&endp->queue_lock.slock, irqs); + endp->queue_next += 1; + if (ENDP_QUEUE_SIZE > --endp->queue_size) { + endp->active = 0; + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + } else { + struct list_head *next = endp->urb_more.next; + struct u132_urbq *urbq = list_entry(next, struct u132_urbq, + urb_more); + list_del(next); + endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = + urbq->urb; + endp->active = 0; + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + kfree(urbq); + } usb_hcd_giveback_urb(hcd, urb, NULL); + return; +} + +static inline int edset_input(struct u132 *u132, struct u132_ring *ring, + struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp, + urb, address, endp->usb_endp, toggle_bits, callback); +} + +static inline int edset_setup(struct u132 *u132, struct u132_ring *ring, + struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp, + urb, address, endp->usb_endp, toggle_bits, callback); +} + +static inline int edset_single(struct u132 *u132, struct u132_ring *ring, + struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number, + endp, urb, address, endp->usb_endp, toggle_bits, callback); +} + +static inline int edset_output(struct u132 *u132, struct u132_ring *ring, + struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number, + endp, urb, address, endp->usb_endp, toggle_bits, callback); +} + + +/* +* must not LOCK sw_lock +* +*/ +static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf, + int len, int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, int non_null) +{ + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + u8 address = u132->addr[endp->usb_addr].address; + struct u132_udev *udev = &u132->udev[address]; + down(&u132->scheduler_lock); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + up(&u132->scheduler_lock); + u132_hcd_forget_urb(u132, endp, urb, -ENODEV); + return; + } else if (endp->dequeueing) { + endp->dequeueing = 0; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -EINTR); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); + return; + } else if (urb->status == -EINPROGRESS) { + struct u132_ring *ring = endp->ring; + u8 *u = urb->transfer_buffer + urb->actual_length; + u8 *b = buf; + int L = len; + while (L-- > 0) { + *u++ = *b++; + } + urb->actual_length += len; + if ((condition_code == TD_CC_NOERROR) && + (urb->transfer_buffer_length > urb->actual_length)) { + endp->toggle_bits = toggle_bits; + usb_settoggle(udev->usb_device, endp->usb_endp, 0, + 1 & toggle_bits); + if (urb->actual_length > 0) { + int retval; + up(&u132->scheduler_lock); + retval = edset_single(u132, ring, endp, urb, + address, endp->toggle_bits, + u132_hcd_interrupt_recv); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, + retval); + } else { + ring->in_use = 0; + endp->active = 0; + endp->jiffies = jiffies + + msecs_to_jiffies(urb->interval); + u132_ring_cancel_work(u132, ring); + u132_ring_queue_work(u132, ring, 0); + up(&u132->scheduler_lock); + u132_endp_put_kref(u132, endp); + } + return; + } else if ((condition_code == TD_DATAUNDERRUN) && + ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { + endp->toggle_bits = toggle_bits; + usb_settoggle(udev->usb_device, endp->usb_endp, 0, + 1 & toggle_bits); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, 0); + return; + } else { + if (condition_code == TD_CC_NOERROR) { + endp->toggle_bits = toggle_bits; + usb_settoggle(udev->usb_device, endp->usb_endp, + 0, 1 & toggle_bits); + } else if (condition_code == TD_CC_STALL) { + endp->toggle_bits = 0x2; + usb_settoggle(udev->usb_device, endp->usb_endp, + 0, 0); + } else { + endp->toggle_bits = 0x2; + usb_settoggle(udev->usb_device, endp->usb_endp, + 0, 0); + dev_err(&u132->platform_dev->dev, "urb=%p givin" + "g back INTERRUPT %s\n", urb, + cc_to_text[condition_code]); + } + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, + cc_to_error[condition_code]); + return; + } + } else { + dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" + "s=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, urb->status); + return; + } +} + +static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf, + int len, int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, int non_null) +{ + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + u8 address = u132->addr[endp->usb_addr].address; + down(&u132->scheduler_lock); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + up(&u132->scheduler_lock); + u132_hcd_forget_urb(u132, endp, urb, -ENODEV); + return; + } else if (endp->dequeueing) { + endp->dequeueing = 0; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -EINTR); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); + return; + } else if (urb->status == -EINPROGRESS) { + struct u132_ring *ring = endp->ring; + urb->actual_length += len; + endp->toggle_bits = toggle_bits; + if (urb->transfer_buffer_length > urb->actual_length) { + int retval; + up(&u132->scheduler_lock); + retval = edset_output(u132, ring, endp, urb, address, + endp->toggle_bits, u132_hcd_bulk_output_sent); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, retval); + return; + } else { + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, 0); + return; + } + } else { + dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" + "s=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, urb->status); + return; + } +} + +static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf, + int len, int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, int non_null) +{ + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + u8 address = u132->addr[endp->usb_addr].address; + struct u132_udev *udev = &u132->udev[address]; + down(&u132->scheduler_lock); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + up(&u132->scheduler_lock); + u132_hcd_forget_urb(u132, endp, urb, -ENODEV); + return; + } else if (endp->dequeueing) { + endp->dequeueing = 0; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -EINTR); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); + return; + } else if (urb->status == -EINPROGRESS) { + struct u132_ring *ring = endp->ring; + u8 *u = urb->transfer_buffer + urb->actual_length; + u8 *b = buf; + int L = len; + while (L-- > 0) { + *u++ = *b++; + } + urb->actual_length += len; + if ((condition_code == TD_CC_NOERROR) && + (urb->transfer_buffer_length > urb->actual_length)) { + int retval; + endp->toggle_bits = toggle_bits; + usb_settoggle(udev->usb_device, endp->usb_endp, 0, + 1 & toggle_bits); + up(&u132->scheduler_lock); + retval = usb_ftdi_elan_edset_input(u132->platform_dev, + ring->number, endp, urb, address, + endp->usb_endp, endp->toggle_bits, + u132_hcd_bulk_input_recv); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, retval); + return; + } else if (condition_code == TD_CC_NOERROR) { + endp->toggle_bits = toggle_bits; + usb_settoggle(udev->usb_device, endp->usb_endp, 0, + 1 & toggle_bits); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, + cc_to_error[condition_code]); + return; + } else if ((condition_code == TD_DATAUNDERRUN) && + ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) { + endp->toggle_bits = toggle_bits; + usb_settoggle(udev->usb_device, endp->usb_endp, 0, + 1 & toggle_bits); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, 0); + return; + } else if (condition_code == TD_DATAUNDERRUN) { + endp->toggle_bits = toggle_bits; + usb_settoggle(udev->usb_device, endp->usb_endp, 0, + 1 & toggle_bits); + dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK" + ") giving back BULK IN %s\n", urb, + cc_to_text[condition_code]); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, 0); + return; + } else if (condition_code == TD_CC_STALL) { + endp->toggle_bits = 0x2; + usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, + cc_to_error[condition_code]); + return; + } else { + endp->toggle_bits = 0x2; + usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0); + dev_err(&u132->platform_dev->dev, "urb=%p giving back B" + "ULK IN code=%d %s\n", urb, condition_code, + cc_to_text[condition_code]); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, + cc_to_error[condition_code]); + return; + } + } else { + dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" + "s=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, urb->status); + return; + } +} + +static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf, + int len, int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, int non_null) +{ + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + down(&u132->scheduler_lock); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + up(&u132->scheduler_lock); + u132_hcd_forget_urb(u132, endp, urb, -ENODEV); + return; + } else if (endp->dequeueing) { + endp->dequeueing = 0; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -EINTR); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); + return; + } else if (urb->status == -EINPROGRESS) { + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, 0); + return; + } else { + dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" + "s=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, urb->status); + return; + } +} + +static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf, + int len, int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, int non_null) +{ + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + u8 address = u132->addr[endp->usb_addr].address; + down(&u132->scheduler_lock); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + up(&u132->scheduler_lock); + u132_hcd_forget_urb(u132, endp, urb, -ENODEV); + return; + } else if (endp->dequeueing) { + endp->dequeueing = 0; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -EINTR); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); + return; + } else if (urb->status == -EINPROGRESS) { + struct u132_ring *ring = endp->ring; + u8 *u = urb->transfer_buffer; + u8 *b = buf; + int L = len; + while (L-- > 0) { + *u++ = *b++; + } + urb->actual_length = len; + if ((condition_code == TD_CC_NOERROR) || ((condition_code == + TD_DATAUNDERRUN) && ((urb->transfer_flags & + URB_SHORT_NOT_OK) == 0))) { + int retval; + up(&u132->scheduler_lock); + retval = usb_ftdi_elan_edset_empty(u132->platform_dev, + ring->number, endp, urb, address, + endp->usb_endp, 0x3, + u132_hcd_configure_empty_sent); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, retval); + return; + } else if (condition_code == TD_CC_STALL) { + up(&u132->scheduler_lock); + dev_warn(&u132->platform_dev->dev, "giving back SETUP I" + "NPUT STALL urb %p\n", urb); + u132_hcd_giveback_urb(u132, endp, urb, + cc_to_error[condition_code]); + return; + } else { + up(&u132->scheduler_lock); + dev_err(&u132->platform_dev->dev, "giving back SETUP IN" + "PUT %s urb %p\n", cc_to_text[condition_code], + urb); + u132_hcd_giveback_urb(u132, endp, urb, + cc_to_error[condition_code]); + return; + } + } else { + dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" + "s=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, urb->status); + return; + } +} + +static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf, + int len, int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, int non_null) +{ + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + down(&u132->scheduler_lock); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + up(&u132->scheduler_lock); + u132_hcd_forget_urb(u132, endp, urb, -ENODEV); + return; + } else if (endp->dequeueing) { + endp->dequeueing = 0; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -EINTR); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); + return; + } else if (urb->status == -EINPROGRESS) { + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, 0); + return; + } else { + dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" + "s=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, urb->status); + return; + } +} + +static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf, + int len, int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, int non_null) +{ + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + u8 address = u132->addr[endp->usb_addr].address; + down(&u132->scheduler_lock); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + up(&u132->scheduler_lock); + u132_hcd_forget_urb(u132, endp, urb, -ENODEV); + return; + } else if (endp->dequeueing) { + endp->dequeueing = 0; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -EINTR); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); + return; + } else if (urb->status == -EINPROGRESS) { + if (usb_pipein(urb->pipe)) { + int retval; + struct u132_ring *ring = endp->ring; + up(&u132->scheduler_lock); + retval = usb_ftdi_elan_edset_input(u132->platform_dev, + ring->number, endp, urb, address, + endp->usb_endp, 0, + u132_hcd_configure_input_recv); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, retval); + return; + } else { + int retval; + struct u132_ring *ring = endp->ring; + up(&u132->scheduler_lock); + retval = usb_ftdi_elan_edset_input(u132->platform_dev, + ring->number, endp, urb, address, + endp->usb_endp, 0, + u132_hcd_configure_empty_recv); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, retval); + return; + } + } else { + dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" + "s=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, urb->status); + return; + } +} + +static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb, + u8 *buf, int len, int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, int non_null) +{ + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + u8 address = u132->addr[endp->usb_addr].address; + struct u132_udev *udev = &u132->udev[address]; + down(&u132->scheduler_lock); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + up(&u132->scheduler_lock); + u132_hcd_forget_urb(u132, endp, urb, -ENODEV); + return; + } else if (endp->dequeueing) { + endp->dequeueing = 0; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -EINTR); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); + return; + } else if (urb->status == -EINPROGRESS) { + u132->addr[0].address = 0; + endp->usb_addr = udev->usb_addr; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, 0); + return; + } else { + dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" + "s=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, urb->status); + return; + } +} + +static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb, + u8 *buf, int len, int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, int non_null) +{ + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + down(&u132->scheduler_lock); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + up(&u132->scheduler_lock); + u132_hcd_forget_urb(u132, endp, urb, -ENODEV); + return; + } else if (endp->dequeueing) { + endp->dequeueing = 0; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -EINTR); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); + return; + } else if (urb->status == -EINPROGRESS) { + int retval; + struct u132_ring *ring = endp->ring; + up(&u132->scheduler_lock); + retval = usb_ftdi_elan_edset_input(u132->platform_dev, + ring->number, endp, urb, 0, endp->usb_endp, 0, + u132_hcd_enumeration_empty_recv); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, retval); + return; + } else { + dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" + "s=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, urb->status); + return; + } +} + +static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf, + int len, int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, int non_null) +{ + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + down(&u132->scheduler_lock); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + up(&u132->scheduler_lock); + u132_hcd_forget_urb(u132, endp, urb, -ENODEV); + return; + } else if (endp->dequeueing) { + endp->dequeueing = 0; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -EINTR); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); + return; + } else if (urb->status == -EINPROGRESS) { + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, 0); + return; + } else { + dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" + "s=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, urb->status); + return; + } +} + +static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf, + int len, int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, int non_null) +{ + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + u8 address = u132->addr[endp->usb_addr].address; + down(&u132->scheduler_lock); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + up(&u132->scheduler_lock); + u132_hcd_forget_urb(u132, endp, urb, -ENODEV); + return; + } else if (endp->dequeueing) { + endp->dequeueing = 0; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -EINTR); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); + return; + } else if (urb->status == -EINPROGRESS) { + int retval; + struct u132_ring *ring = endp->ring; + u8 *u = urb->transfer_buffer; + u8 *b = buf; + int L = len; + while (L-- > 0) { + *u++ = *b++; + } + urb->actual_length = len; + up(&u132->scheduler_lock); + retval = usb_ftdi_elan_edset_empty(u132->platform_dev, + ring->number, endp, urb, address, endp->usb_endp, 0x3, + u132_hcd_initial_empty_sent); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, retval); + return; + } else { + dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" + "s=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, urb->status); + return; + } +} + +static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf, + int len, int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, int non_null) +{ + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + u8 address = u132->addr[endp->usb_addr].address; + down(&u132->scheduler_lock); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + up(&u132->scheduler_lock); + u132_hcd_forget_urb(u132, endp, urb, -ENODEV); + return; + } else if (endp->dequeueing) { + endp->dequeueing = 0; + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -EINTR); + return; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, -ENODEV); + return; + } else if (urb->status == -EINPROGRESS) { + int retval; + struct u132_ring *ring = endp->ring; + up(&u132->scheduler_lock); + retval = usb_ftdi_elan_edset_input(u132->platform_dev, + ring->number, endp, urb, address, endp->usb_endp, 0, + u132_hcd_initial_input_recv); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, retval); + return; + } else { + dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu" + "s=%d\n", urb, urb->status); + up(&u132->scheduler_lock); + u132_hcd_giveback_urb(u132, endp, urb, urb->status); + return; + } +} + +static void u132_hcd_ring_work_scheduler(void *data); +static void u132_hcd_endp_work_scheduler(void *data); +/* +* this work function is only executed from the work queue +* +*/ +static void u132_hcd_ring_work_scheduler(void *data) +{ + struct u132_ring *ring = data; + struct u132 *u132 = ring->u132; + down(&u132->scheduler_lock); + if (ring->in_use) { + up(&u132->scheduler_lock); + u132_ring_put_kref(u132, ring); + return; + } else if (ring->curr_endp) { + struct u132_endp *last_endp = ring->curr_endp; + struct list_head *scan; + struct list_head *head = &last_endp->endp_ring; + unsigned long wakeup = 0; + list_for_each(scan, head) { + struct u132_endp *endp = list_entry(scan, + struct u132_endp, endp_ring); + if (endp->queue_next == endp->queue_last) { + } else if ((endp->delayed == 0) + || time_after_eq(jiffies, endp->jiffies)) { + ring->curr_endp = endp; + u132_endp_cancel_work(u132, last_endp); + u132_endp_queue_work(u132, last_endp, 0); + up(&u132->scheduler_lock); + u132_ring_put_kref(u132, ring); + return; + } else { + unsigned long delta = endp->jiffies - jiffies; + if (delta > wakeup) + wakeup = delta; + } + } + if (last_endp->queue_next == last_endp->queue_last) { + } else if ((last_endp->delayed == 0) || time_after_eq(jiffies, + last_endp->jiffies)) { + u132_endp_cancel_work(u132, last_endp); + u132_endp_queue_work(u132, last_endp, 0); + up(&u132->scheduler_lock); + u132_ring_put_kref(u132, ring); + return; + } else { + unsigned long delta = last_endp->jiffies - jiffies; + if (delta > wakeup) + wakeup = delta; + } + if (wakeup > 0) { + u132_ring_requeue_work(u132, ring, wakeup); + up(&u132->scheduler_lock); + return; + } else { + up(&u132->scheduler_lock); + u132_ring_put_kref(u132, ring); + return; + } + } else { + up(&u132->scheduler_lock); + u132_ring_put_kref(u132, ring); + return; + } +} + +static void u132_hcd_endp_work_scheduler(void *data) +{ + struct u132_ring *ring; + struct u132_endp *endp = data; + struct u132 *u132 = endp->u132; + down(&u132->scheduler_lock); + ring = endp->ring; + if (endp->edset_flush) { + endp->edset_flush = 0; + if (endp->dequeueing) + usb_ftdi_elan_edset_flush(u132->platform_dev, + ring->number, endp); + up(&u132->scheduler_lock); + u132_endp_put_kref(u132, endp); + return; + } else if (endp->active) { + up(&u132->scheduler_lock); + u132_endp_put_kref(u132, endp); + return; + } else if (ring->in_use) { + up(&u132->scheduler_lock); + u132_endp_put_kref(u132, endp); + return; + } else if (endp->queue_next == endp->queue_last) { + up(&u132->scheduler_lock); + u132_endp_put_kref(u132, endp); + return; + } else if (endp->pipetype == PIPE_INTERRUPT) { + u8 address = u132->addr[endp->usb_addr].address; + if (ring->in_use) { + up(&u132->scheduler_lock); + u132_endp_put_kref(u132, endp); + return; + } else { + int retval; + struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & + endp->queue_next]; + endp->active = 1; + ring->curr_endp = endp; + ring->in_use = 1; + up(&u132->scheduler_lock); + retval = edset_single(u132, ring, endp, urb, address, + endp->toggle_bits, u132_hcd_interrupt_recv); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, retval); + return; + } + } else if (endp->pipetype == PIPE_CONTROL) { + u8 address = u132->addr[endp->usb_addr].address; + if (ring->in_use) { + up(&u132->scheduler_lock); + u132_endp_put_kref(u132, endp); + return; + } else if (address == 0) { + int retval; + struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & + endp->queue_next]; + endp->active = 1; + ring->curr_endp = endp; + ring->in_use = 1; + up(&u132->scheduler_lock); + retval = edset_setup(u132, ring, endp, urb, address, + 0x2, u132_hcd_initial_setup_sent); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, retval); + return; + } else if (endp->usb_addr == 0) { + int retval; + struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & + endp->queue_next]; + endp->active = 1; + ring->curr_endp = endp; + ring->in_use = 1; + up(&u132->scheduler_lock); + retval = edset_setup(u132, ring, endp, urb, 0, 0x2, + u132_hcd_enumeration_address_sent); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, retval); + return; + } else { + int retval; + u8 address = u132->addr[endp->usb_addr].address; + struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK & + endp->queue_next]; + endp->active = 1; + ring->curr_endp = endp; + ring->in_use = 1; + up(&u132->scheduler_lock); + retval = edset_setup(u132, ring, endp, urb, address, + 0x2, u132_hcd_configure_setup_sent); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, retval); + return; + } + } else { + if (endp->input) { + u8 address = u132->addr[endp->usb_addr].address; + if (ring->in_use) { + up(&u132->scheduler_lock); + u132_endp_put_kref(u132, endp); + return; + } else { + int retval; + struct urb *urb = endp->urb_list[ + ENDP_QUEUE_MASK & endp->queue_next]; + endp->active = 1; + ring->curr_endp = endp; + ring->in_use = 1; + up(&u132->scheduler_lock); + retval = edset_input(u132, ring, endp, urb, + address, endp->toggle_bits, + u132_hcd_bulk_input_recv); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, + retval); + return; + } + } else { /* output pipe */ + u8 address = u132->addr[endp->usb_addr].address; + if (ring->in_use) { + up(&u132->scheduler_lock); + u132_endp_put_kref(u132, endp); + return; + } else { + int retval; + struct urb *urb = endp->urb_list[ + ENDP_QUEUE_MASK & endp->queue_next]; + endp->active = 1; + ring->curr_endp = endp; + ring->in_use = 1; + up(&u132->scheduler_lock); + retval = edset_output(u132, ring, endp, urb, + address, endp->toggle_bits, + u132_hcd_bulk_output_sent); + if (retval == 0) { + } else + u132_hcd_giveback_urb(u132, endp, urb, + retval); + return; + } + } + } +} + +static void port_power(struct u132 *u132, int pn, int is_on) +{ + u132->port[pn].power = is_on; +} + +static void u132_power(struct u132 *u132, int is_on) +{ + struct usb_hcd *hcd = u132_to_hcd(u132) + ; /* hub is inactive unless the port is powered */ + if (is_on) { + if (u132->power) + return; + u132->power = 1; + hcd->self.controller->power.power_state = PMSG_ON; + } else { + u132->power = 0; + hcd->state = HC_STATE_HALT; + hcd->self.controller->power.power_state = PMSG_SUSPEND; + } +} + +static int u132_periodic_reinit(struct u132 *u132) +{ + int retval; + u32 fi = u132->hc_fminterval & 0x03fff; + u32 fit; + u32 fminterval; + retval = u132_read_pcimem(u132, fminterval, &fminterval); + if (retval) + return retval; + fit = fminterval & FIT; + retval = u132_write_pcimem(u132, fminterval, + (fit ^ FIT) | u132->hc_fminterval); + if (retval) + return retval; + retval = u132_write_pcimem(u132, periodicstart, + ((9 *fi) / 10) & 0x3fff); + if (retval) + return retval; + return 0; +} + +static char *hcfs2string(int state) +{ + switch (state) { + case OHCI_USB_RESET: + return "reset"; + case OHCI_USB_RESUME: + return "resume"; + case OHCI_USB_OPER: + return "operational"; + case OHCI_USB_SUSPEND: + return "suspend"; + } + return "?"; +} + +static int u132_usb_reset(struct u132 *u132) +{ + int retval; + retval = u132_read_pcimem(u132, control, &u132->hc_control); + if (retval) + return retval; + u132->hc_control &= OHCI_CTRL_RWC; + retval = u132_write_pcimem(u132, control, u132->hc_control); + if (retval) + return retval; + return 0; +} + +static int u132_init(struct u132 *u132) +{ + int retval; + u32 control; + u132_disable(u132); + u132->next_statechange = + jiffies; /* SMM owns the HC? not for long! */ { + u32 control; + retval = u132_read_pcimem(u132, control, &control); + if (retval) + return retval; + if (control & OHCI_CTRL_IR) { + u32 temp = 50; + retval = u132_write_pcimem(u132, intrenable, + OHCI_INTR_OC); + if (retval) + return retval; + retval = u132_write_pcimem_byte(u132, cmdstatus, + OHCI_OCR); + if (retval) + return retval; + check:{ + retval = u132_read_pcimem(u132, control, + &control); + if (retval) + return retval; + } + if (control & OHCI_CTRL_IR) { + msleep(10); + if (--temp == 0) { + dev_err(&u132->platform_dev->dev, "USB " + "HC takeover failed!(BIOS/SMM b" + "ug) control=%08X\n", control); + return -EBUSY; + } + goto check; + } + u132_usb_reset(u132); + } + } + retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE); + if (retval) + return retval; + retval = u132_read_pcimem(u132, control, &control); + if (retval) + return retval; + if (u132->num_ports == 0) { + u32 rh_a = -1; + retval = u132_read_pcimem(u132, roothub.a, &rh_a); + if (retval) + return retval; + u132->num_ports = rh_a & RH_A_NDP; + retval = read_roothub_info(u132); + if (retval) + return retval; + } + if (u132->num_ports > MAX_U132_PORTS) { + return -EINVAL; + } + return 0; +} + + +/* Start an OHCI controller, set the BUS operational +* resets USB and controller +* enable interrupts +*/ +static int u132_run(struct u132 *u132) +{ + int retval; + u32 control; + u32 status; + u32 fminterval; + u32 periodicstart; + u32 cmdstatus; + u32 roothub_a; + int mask = OHCI_INTR_INIT; + int first = u132->hc_fminterval == 0; + int sleep_time = 0; + int reset_timeout = 30; /* ... allow extra time */ + u132_disable(u132); + if (first) { + u32 temp; + retval = u132_read_pcimem(u132, fminterval, &temp); + if (retval) + return retval; + u132->hc_fminterval = temp & 0x3fff; + if (u132->hc_fminterval != FI) { + } + u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16; + } + retval = u132_read_pcimem(u132, control, &u132->hc_control); + if (retval) + return retval; + dev_info(&u132->platform_dev->dev, "resetting from state '%s', control " + "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS), + u132->hc_control); + switch (u132->hc_control & OHCI_CTRL_HCFS) { + case OHCI_USB_OPER: + sleep_time = 0; + break; + case OHCI_USB_SUSPEND: + case OHCI_USB_RESUME: + u132->hc_control &= OHCI_CTRL_RWC; + u132->hc_control |= OHCI_USB_RESUME; + sleep_time = 10; + break; + default: + u132->hc_control &= OHCI_CTRL_RWC; + u132->hc_control |= OHCI_USB_RESET; + sleep_time = 50; + break; + } + retval = u132_write_pcimem(u132, control, u132->hc_control); + if (retval) + return retval; + retval = u132_read_pcimem(u132, control, &control); + if (retval) + return retval; + msleep(sleep_time); + retval = u132_read_pcimem(u132, roothub.a, &roothub_a); + if (retval) + return retval; + if (!(roothub_a & RH_A_NPS)) { + int temp; /* power down each port */ + for (temp = 0; temp < u132->num_ports; temp++) { + retval = u132_write_pcimem(u132, + roothub.portstatus[temp], RH_PS_LSDA); + if (retval) + return retval; + } + } + retval = u132_read_pcimem(u132, control, &control); + if (retval) + return retval; + retry:retval = u132_read_pcimem(u132, cmdstatus, &status); + if (retval) + return retval; + retval = u132_write_pcimem_byte(u132, cmdstatus, OHCI_HCR); + if (retval) + return retval; + extra:{ + retval = u132_read_pcimem(u132, cmdstatus, &status); + if (retval) + return retval; + if (0 != (status & OHCI_HCR)) { + if (--reset_timeout == 0) { + dev_err(&u132->platform_dev->dev, "USB HC reset" + " timed out!\n"); + return -ENODEV; + } else { + msleep(5); + goto extra; + } + } + } + if (u132->flags & OHCI_QUIRK_INITRESET) { + retval = u132_write_pcimem(u132, control, u132->hc_control); + if (retval) + return retval; + retval = u132_read_pcimem(u132, control, &control); + if (retval) + return retval; + } + retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000); + if (retval) + return retval; + retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000); + if (retval) + return retval; + retval = u132_write_pcimem(u132, hcca, 0x00000000); + if (retval) + return retval; + retval = u132_periodic_reinit(u132); + if (retval) + return retval; + retval = u132_read_pcimem(u132, fminterval, &fminterval); + if (retval) + return retval; + retval = u132_read_pcimem(u132, periodicstart, &periodicstart); + if (retval) + return retval; + if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) { + if (!(u132->flags & OHCI_QUIRK_INITRESET)) { + u132->flags |= OHCI_QUIRK_INITRESET; + goto retry; + } else + dev_err(&u132->platform_dev->dev, "init err(%08x %04x)" + "\n", fminterval, periodicstart); + } /* start controller operations */ + u132->hc_control &= OHCI_CTRL_RWC; + u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER; + retval = u132_write_pcimem(u132, control, u132->hc_control); + if (retval) + return retval; + retval = u132_write_pcimem_byte(u132, cmdstatus, OHCI_BLF); + if (retval) + return retval; + retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus); + if (retval) + return retval; + retval = u132_read_pcimem(u132, control, &control); + if (retval) + return retval; + u132_to_hcd(u132)->state = HC_STATE_RUNNING; + retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE); + if (retval) + return retval; + retval = u132_write_pcimem(u132, intrstatus, mask); + if (retval) + return retval; + retval = u132_write_pcimem(u132, intrdisable, + OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO | + OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH | + OHCI_INTR_SO); + if (retval) + return retval; /* handle root hub init quirks ... */ + retval = u132_read_pcimem(u132, roothub.a, &roothub_a); + if (retval) + return retval; + roothub_a &= ~(RH_A_PSM | RH_A_OCPM); + if (u132->flags & OHCI_QUIRK_SUPERIO) { + roothub_a |= RH_A_NOCP; + roothub_a &= ~(RH_A_POTPGT | RH_A_NPS); + retval = u132_write_pcimem(u132, roothub.a, roothub_a); + if (retval) + return retval; + } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) { + roothub_a |= RH_A_NPS; + retval = u132_write_pcimem(u132, roothub.a, roothub_a); + if (retval) + return retval; + } + retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC); + if (retval) + return retval; + retval = u132_write_pcimem(u132, roothub.b, + (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM); + if (retval) + return retval; + retval = u132_read_pcimem(u132, control, &control); + if (retval) + return retval; + mdelay((roothub_a >> 23) & 0x1fe); + u132_to_hcd(u132)->state = HC_STATE_RUNNING; + return 0; +} + +static void u132_hcd_stop(struct usb_hcd *hcd) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" + "ed\n", hcd); + } else { + down(&u132->sw_lock); + msleep(100); + u132_power(u132, 0); + up(&u132->sw_lock); + } +} + +static int u132_hcd_start(struct usb_hcd *hcd) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed\n"); + return -ESHUTDOWN; + } else if (hcd->self.controller) { + int retval; + struct platform_device *pdev = + to_platform_device(hcd->self.controller); + u16 vendor = ((struct u132_platform_data *) + (pdev->dev.platform_data))->vendor; + u16 device = ((struct u132_platform_data *) + (pdev->dev.platform_data))->device; + down(&u132->sw_lock); + msleep(10); + if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) { + u132->flags = OHCI_QUIRK_AMD756; + } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) { + dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar" + "ounds unavailable\n"); + } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8) + u132->flags |= OHCI_QUIRK_ZFMICRO; + retval = u132_run(u132); + if (retval) { + u132_disable(u132); + u132->going = 1; + } + msleep(100); + up(&u132->sw_lock); + return retval; + } else { + dev_err(&u132->platform_dev->dev, "platform_device missing\n"); + return -ENODEV; + } +} + +static int u132_hcd_reset(struct usb_hcd *hcd) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed\n"); + return -ESHUTDOWN; + } else { + int retval; + down(&u132->sw_lock); + retval = u132_init(u132); + if (retval) { + u132_disable(u132); + u132->going = 1; + } + up(&u132->sw_lock); + return retval; + } +} + +static int create_endpoint_and_queue_int(struct u132 *u132, + struct u132_udev *udev, struct usb_host_endpoint *hep, struct urb *urb, + struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, + gfp_t mem_flags) +{ + struct u132_ring *ring; + unsigned long irqs; + u8 endp_number = ++u132->num_endpoints; + struct u132_endp *endp = hep->hcpriv = u132->endp[endp_number - 1] = + kmalloc(sizeof(struct u132_endp), mem_flags); + if (!endp) { + return -ENOMEM; + } + INIT_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler, (void *)endp); + spin_lock_init(&endp->queue_lock.slock); + INIT_LIST_HEAD(&endp->urb_more); + ring = endp->ring = &u132->ring[0]; + if (ring->curr_endp) { + list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); + } else { + INIT_LIST_HEAD(&endp->endp_ring); + ring->curr_endp = endp; + } + ring->length += 1; + endp->dequeueing = 0; + endp->edset_flush = 0; + endp->active = 0; + endp->delayed = 0; + endp->endp_number = endp_number; + endp->u132 = u132; + endp->hep = hep; + endp->pipetype = usb_pipetype(urb->pipe); + u132_endp_init_kref(u132, endp); + if (usb_pipein(urb->pipe)) { + endp->toggle_bits = 0x2; + usb_settoggle(udev->usb_device, usb_endp, 0, 0); + endp->input = 1; + endp->output = 0; + udev->endp_number_in[usb_endp] = endp_number; + u132_udev_get_kref(u132, udev); + } else { + endp->toggle_bits = 0x2; + usb_settoggle(udev->usb_device, usb_endp, 1, 0); + endp->input = 0; + endp->output = 1; + udev->endp_number_out[usb_endp] = endp_number; + u132_udev_get_kref(u132, udev); + } + urb->hcpriv = u132; + spin_lock_irqsave(&endp->queue_lock.slock, irqs); + endp->delayed = 1; + endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); + endp->udev_number = address; + endp->usb_addr = usb_addr; + endp->usb_endp = usb_endp; + endp->queue_size = 1; + endp->queue_last = 0; + endp->queue_next = 0; + endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval)); + return 0; +} + +static int queue_int_on_old_endpoint(struct u132 *u132, struct u132_udev *udev, + struct usb_host_endpoint *hep, struct urb *urb, + struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, + u8 usb_endp, u8 address) +{ + urb->hcpriv = u132; + endp->delayed = 1; + endp->jiffies = jiffies + msecs_to_jiffies(urb->interval); + if (endp->queue_size++ < ENDP_QUEUE_SIZE) { + endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; + } else { + struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), + GFP_ATOMIC); + if (urbq == NULL) { + endp->queue_size -= 1; + return -ENOMEM; + } else { + list_add_tail(&urbq->urb_more, &endp->urb_more); + urbq->urb = urb; + } + } + return 0; +} + +static int create_endpoint_and_queue_bulk(struct u132 *u132, + struct u132_udev *udev, struct usb_host_endpoint *hep, struct urb *urb, + struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address, + gfp_t mem_flags) +{ + int ring_number; + struct u132_ring *ring; + unsigned long irqs; + u8 endp_number = ++u132->num_endpoints; + struct u132_endp *endp = hep->hcpriv = u132->endp[endp_number - 1] = + kmalloc(sizeof(struct u132_endp), mem_flags); + if (!endp) { + return -ENOMEM; + } + INIT_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler, (void *)endp); + spin_lock_init(&endp->queue_lock.slock); + INIT_LIST_HEAD(&endp->urb_more); + endp->dequeueing = 0; + endp->edset_flush = 0; + endp->active = 0; + endp->delayed = 0; + endp->endp_number = endp_number; + endp->u132 = u132; + endp->hep = hep; + endp->pipetype = usb_pipetype(urb->pipe); + u132_endp_init_kref(u132, endp); + if (usb_pipein(urb->pipe)) { + endp->toggle_bits = 0x2; + usb_settoggle(udev->usb_device, usb_endp, 0, 0); + ring_number = 3; + endp->input = 1; + endp->output = 0; + udev->endp_number_in[usb_endp] = endp_number; + u132_udev_get_kref(u132, udev); + } else { + endp->toggle_bits = 0x2; + usb_settoggle(udev->usb_device, usb_endp, 1, 0); + ring_number = 2; + endp->input = 0; + endp->output = 1; + udev->endp_number_out[usb_endp] = endp_number; + u132_udev_get_kref(u132, udev); + } + ring = endp->ring = &u132->ring[ring_number - 1]; + if (ring->curr_endp) { + list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); + } else { + INIT_LIST_HEAD(&endp->endp_ring); + ring->curr_endp = endp; + } + ring->length += 1; + urb->hcpriv = u132; + spin_lock_irqsave(&endp->queue_lock.slock, irqs); + endp->udev_number = address; + endp->usb_addr = usb_addr; + endp->usb_endp = usb_endp; + endp->queue_size = 1; + endp->queue_last = 0; + endp->queue_next = 0; + endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + u132_endp_queue_work(u132, endp, 0); + return 0; +} + +static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev, + struct usb_host_endpoint *hep, struct urb *urb, + struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, + u8 usb_endp, u8 address) +{ + urb->hcpriv = u132; + if (endp->queue_size++ < ENDP_QUEUE_SIZE) { + endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; + } else { + struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq), + GFP_ATOMIC); + if (urbq == NULL) { + endp->queue_size -= 1; + return -ENOMEM; + } else { + list_add_tail(&urbq->urb_more, &endp->urb_more); + urbq->urb = urb; + } + } + return 0; +} + +static int create_endpoint_and_queue_control(struct u132 *u132, + struct usb_host_endpoint *hep, struct urb *urb, + struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, + gfp_t mem_flags) +{ + struct u132_ring *ring; + u8 endp_number = ++u132->num_endpoints; + struct u132_endp *endp = hep->hcpriv = u132->endp[endp_number - 1] = + kmalloc(sizeof(struct u132_endp), mem_flags); + if (!endp) { + return -ENOMEM; + } + INIT_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler, (void *)endp); + spin_lock_init(&endp->queue_lock.slock); + INIT_LIST_HEAD(&endp->urb_more); + ring = endp->ring = &u132->ring[0]; + if (ring->curr_endp) { + list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring); + } else { + INIT_LIST_HEAD(&endp->endp_ring); + ring->curr_endp = endp; + } + ring->length += 1; + endp->dequeueing = 0; + endp->edset_flush = 0; + endp->active = 0; + endp->delayed = 0; + endp->endp_number = endp_number; + endp->u132 = u132; + endp->hep = hep; + u132_endp_init_kref(u132, endp); + u132_endp_get_kref(u132, endp); + if (usb_addr == 0) { + unsigned long irqs; + u8 address = u132->addr[usb_addr].address; + struct u132_udev *udev = &u132->udev[address]; + endp->udev_number = address; + endp->usb_addr = usb_addr; + endp->usb_endp = usb_endp; + endp->input = 1; + endp->output = 1; + endp->pipetype = usb_pipetype(urb->pipe); + u132_udev_init_kref(u132, udev); + u132_udev_get_kref(u132, udev); + udev->endp_number_in[usb_endp] = endp_number; + udev->endp_number_out[usb_endp] = endp_number; + urb->hcpriv = u132; + spin_lock_irqsave(&endp->queue_lock.slock, irqs); + endp->queue_size = 1; + endp->queue_last = 0; + endp->queue_next = 0; + endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + u132_endp_queue_work(u132, endp, 0); + return 0; + } else { /*(usb_addr > 0) */ + unsigned long irqs; + u8 address = u132->addr[usb_addr].address; + struct u132_udev *udev = &u132->udev[address]; + endp->udev_number = address; + endp->usb_addr = usb_addr; + endp->usb_endp = usb_endp; + endp->input = 1; + endp->output = 1; + endp->pipetype = usb_pipetype(urb->pipe); + u132_udev_get_kref(u132, udev); + udev->enumeration = 2; + udev->endp_number_in[usb_endp] = endp_number; + udev->endp_number_out[usb_endp] = endp_number; + urb->hcpriv = u132; + spin_lock_irqsave(&endp->queue_lock.slock, irqs); + endp->queue_size = 1; + endp->queue_last = 0; + endp->queue_next = 0; + endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb; + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + u132_endp_queue_work(u132, endp, 0); + return 0; + } +} + +static int queue_control_on_old_endpoint(struct u132 *u132, + struct usb_host_endpoint *hep, struct urb *urb, + struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr, + u8 usb_endp) +{ + if (usb_addr == 0) { + if (usb_pipein(urb->pipe)) { + urb->hcpriv = u132; + if (endp->queue_size++ < ENDP_QUEUE_SIZE) { + endp->urb_list[ENDP_QUEUE_MASK & + endp->queue_last++] = urb; + } else { + struct u132_urbq *urbq = + kmalloc(sizeof(struct u132_urbq), + GFP_ATOMIC); + if (urbq == NULL) { + endp->queue_size -= 1; + return -ENOMEM; + } else { + list_add_tail(&urbq->urb_more, + &endp->urb_more); + urbq->urb = urb; + } + } + return 0; + } else { /* usb_pipeout(urb->pipe) */ + struct u132_addr *addr = &u132->addr[usb_dev->devnum]; + int I = MAX_U132_UDEVS; + int i = 0; + while (--I > 0) { + struct u132_udev *udev = &u132->udev[++i]; + if (udev->usb_device) { + continue; + } else { + udev->enumeration = 1; + u132->addr[0].address = i; + endp->udev_number = i; + udev->udev_number = i; + udev->usb_addr = usb_dev->devnum; + u132_udev_init_kref(u132, udev); + udev->endp_number_in[usb_endp] = + endp->endp_number; + u132_udev_get_kref(u132, udev); + udev->endp_number_out[usb_endp] = + endp->endp_number; + udev->usb_device = usb_dev; + ((u8 *) (urb->setup_packet))[2] = + addr->address = i; + u132_udev_get_kref(u132, udev); + break; + } + } + if (I == 0) { + dev_err(&u132->platform_dev->dev, "run out of d" + "evice space\n"); + return -EINVAL; + } + urb->hcpriv = u132; + if (endp->queue_size++ < ENDP_QUEUE_SIZE) { + endp->urb_list[ENDP_QUEUE_MASK & + endp->queue_last++] = urb; + } else { + struct u132_urbq *urbq = + kmalloc(sizeof(struct u132_urbq), + GFP_ATOMIC); + if (urbq == NULL) { + endp->queue_size -= 1; + return -ENOMEM; + } else { + list_add_tail(&urbq->urb_more, + &endp->urb_more); + urbq->urb = urb; + } + } + return 0; + } + } else { /*(usb_addr > 0) */ + u8 address = u132->addr[usb_addr].address; + struct u132_udev *udev = &u132->udev[address]; + urb->hcpriv = u132; + if (udev->enumeration == 2) { + } else + udev->enumeration = 2; + if (endp->queue_size++ < ENDP_QUEUE_SIZE) { + endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = + urb; + } else { + struct u132_urbq *urbq = + kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC); + if (urbq == NULL) { + endp->queue_size -= 1; + return -ENOMEM; + } else { + list_add_tail(&urbq->urb_more, &endp->urb_more); + urbq->urb = urb; + } + } + return 0; + } +} + +static int u132_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *hep, + struct urb *urb, gfp_t mem_flags) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (irqs_disabled()) { + if (__GFP_WAIT & mem_flags) { + printk(KERN_ERR "invalid context for function that migh" + "t sleep\n"); + return -EINVAL; + } + } + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed urb=" + "%p status=%d\n", urb, urb->status); + return -ESHUTDOWN; + } else { + u8 usb_addr = usb_pipedevice(urb->pipe); + u8 usb_endp = usb_pipeendpoint(urb->pipe); + struct usb_device *usb_dev = urb->dev; + if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { + u8 address = u132->addr[usb_addr].address; + struct u132_udev *udev = &u132->udev[address]; + struct u132_endp *endp = hep->hcpriv; + urb->actual_length = 0; + if (endp) { + unsigned long irqs; + int retval; + spin_lock_irqsave(&endp->queue_lock.slock, + irqs); + retval = queue_int_on_old_endpoint(u132, udev, + hep, urb, usb_dev, endp, usb_addr, + usb_endp, address); + spin_unlock_irqrestore(&endp->queue_lock.slock, + irqs); + if (retval) { + return retval; + } else { + u132_endp_queue_work(u132, endp, + msecs_to_jiffies(urb->interval)) + ; + return 0; + } + } else if (u132->num_endpoints == MAX_U132_ENDPS) { + return -EINVAL; + } else { /*(endp == NULL) */ + return create_endpoint_and_queue_int(u132, udev, + hep, urb, usb_dev, usb_addr, usb_endp, + address, mem_flags); + } + } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { + dev_err(&u132->platform_dev->dev, "the hardware does no" + "t support PIPE_ISOCHRONOUS\n"); + return -EINVAL; + } else if (usb_pipetype(urb->pipe) == PIPE_BULK) { + u8 address = u132->addr[usb_addr].address; + struct u132_udev *udev = &u132->udev[address]; + struct u132_endp *endp = hep->hcpriv; + urb->actual_length = 0; + if (endp) { + unsigned long irqs; + int retval; + spin_lock_irqsave(&endp->queue_lock.slock, + irqs); + retval = queue_bulk_on_old_endpoint(u132, udev, + hep, urb, usb_dev, endp, usb_addr, + usb_endp, address); + spin_unlock_irqrestore(&endp->queue_lock.slock, + irqs); + if (retval) { + return retval; + } else { + u132_endp_queue_work(u132, endp, 0); + return 0; + } + } else if (u132->num_endpoints == MAX_U132_ENDPS) { + return -EINVAL; + } else + return create_endpoint_and_queue_bulk(u132, + udev, hep, urb, usb_dev, usb_addr, + usb_endp, address, mem_flags); + } else { + struct u132_endp *endp = hep->hcpriv; + u16 urb_size = 8; + u8 *b = urb->setup_packet; + int i = 0; + char data[30 *3 + 4]; + char *d = data; + int m = (sizeof(data) - 1) / 3; + int l = 0; + data[0] = 0; + while (urb_size-- > 0) { + if (i > m) { + } else if (i++ < m) { + int w = sprintf(d, " %02X", *b++); + d += w; + l += w; + } else + d += sprintf(d, " .."); + } + if (endp) { + unsigned long irqs; + int retval; + spin_lock_irqsave(&endp->queue_lock.slock, + irqs); + retval = queue_control_on_old_endpoint(u132, + hep, urb, usb_dev, endp, usb_addr, + usb_endp); + spin_unlock_irqrestore(&endp->queue_lock.slock, + irqs); + if (retval) { + return retval; + } else { + u132_endp_queue_work(u132, endp, 0); + return 0; + } + } else if (u132->num_endpoints == MAX_U132_ENDPS) { + return -EINVAL; + } else + return create_endpoint_and_queue_control(u132, + hep, urb, usb_dev, usb_addr, usb_endp, + mem_flags); + } + } +} + +static int dequeue_from_overflow_chain(struct u132 *u132, + struct u132_endp *endp, struct urb *urb) +{ + struct list_head *scan; + struct list_head *head = &endp->urb_more; + list_for_each(scan, head) { + struct u132_urbq *urbq = list_entry(scan, struct u132_urbq, + urb_more); + if (urbq->urb == urb) { + struct usb_hcd *hcd = u132_to_hcd(u132); + list_del(scan); + endp->queue_size -= 1; + urb->error_count = 0; + urb->hcpriv = NULL; + usb_hcd_giveback_urb(hcd, urb, NULL); + return 0; + } else + continue; + } + dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring" + "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X" + "\n", urb, endp->endp_number, endp, endp->ring->number, + endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', + endp->usb_endp, endp->usb_addr, endp->queue_size, + endp->queue_next, endp->queue_last); + return -EINVAL; +} + +static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp, + struct urb *urb) +{ + unsigned long irqs; + spin_lock_irqsave(&endp->queue_lock.slock, irqs); + if (endp->queue_size == 0) { + dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]" + "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb, + endp->endp_number, endp, endp->ring->number, + endp->input ? 'I' : ' ', endp->output ? 'O' : ' ', + endp->usb_endp, endp->usb_addr); + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + return -EINVAL; + } + if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) { + if (endp->active) { + endp->dequeueing = 1; + endp->edset_flush = 1; + u132_endp_queue_work(u132, endp, 0); + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + urb->hcpriv = NULL; + return 0; + } else { + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + u132_hcd_abandon_urb(u132, endp, urb, urb->status); + return 0; + } + } else { + u16 queue_list = 0; + u16 queue_size = endp->queue_size; + u16 queue_scan = endp->queue_next; + struct urb **urb_slot = NULL; + while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { + if (urb == endp->urb_list[ENDP_QUEUE_MASK & + ++queue_scan]) { + urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & + queue_scan]; + break; + } else + continue; + } + while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) { + *urb_slot = endp->urb_list[ENDP_QUEUE_MASK & + ++queue_scan]; + urb_slot = &endp->urb_list[ENDP_QUEUE_MASK & + queue_scan]; + } + if (urb_slot) { + struct usb_hcd *hcd = u132_to_hcd(u132); + endp->queue_size -= 1; + if (list_empty(&endp->urb_more)) { + spin_unlock_irqrestore(&endp->queue_lock.slock, + irqs); + } else { + struct list_head *next = endp->urb_more.next; + struct u132_urbq *urbq = list_entry(next, + struct u132_urbq, urb_more); + list_del(next); + *urb_slot = urbq->urb; + spin_unlock_irqrestore(&endp->queue_lock.slock, + irqs); + kfree(urbq); + } urb->error_count = 0; + urb->hcpriv = NULL; + usb_hcd_giveback_urb(hcd, urb, NULL); + return 0; + } else if (list_empty(&endp->urb_more)) { + dev_err(&u132->platform_dev->dev, "urb=%p not found in " + "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr" + "=%d size=%d next=%04X last=%04X\n", urb, + endp->endp_number, endp, endp->ring->number, + endp->input ? 'I' : ' ', + endp->output ? 'O' : ' ', endp->usb_endp, + endp->usb_addr, endp->queue_size, + endp->queue_next, endp->queue_last); + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + return -EINVAL; + } else { + int retval = dequeue_from_overflow_chain(u132, endp, + urb); + spin_unlock_irqrestore(&endp->queue_lock.slock, irqs); + return retval; + } + } +} + +static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 2) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else { + u8 usb_addr = usb_pipedevice(urb->pipe); + u8 usb_endp = usb_pipeendpoint(urb->pipe); + u8 address = u132->addr[usb_addr].address; + struct u132_udev *udev = &u132->udev[address]; + if (usb_pipein(urb->pipe)) { + u8 endp_number = udev->endp_number_in[usb_endp]; + struct u132_endp *endp = u132->endp[endp_number - 1]; + return u132_endp_urb_dequeue(u132, endp, urb); + } else { + u8 endp_number = udev->endp_number_out[usb_endp]; + struct u132_endp *endp = u132->endp[endp_number - 1]; + return u132_endp_urb_dequeue(u132, endp, urb); + } + } +} + +static void u132_endpoint_disable(struct usb_hcd *hcd, + struct usb_host_endpoint *hep) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 2) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + } else { + struct u132_endp *endp = hep->hcpriv; + if (endp) + u132_endp_put_kref(u132, endp); + } +} + +static int u132_get_frame(struct usb_hcd *hcd) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed\n"); + return -ESHUTDOWN; + } else { + int frame = 0; + dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n"); + msleep(100); + return frame; + } +} + +static int u132_roothub_descriptor(struct u132 *u132, + struct usb_hub_descriptor *desc) +{ + int retval; + u16 temp; + u32 rh_a = -1; + u32 rh_b = -1; + retval = u132_read_pcimem(u132, roothub.a, &rh_a); + if (retval) + return retval; + desc->bDescriptorType = 0x29; + desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24; + desc->bHubContrCurrent = 0; + desc->bNbrPorts = u132->num_ports; + temp = 1 + (u132->num_ports / 8); + desc->bDescLength = 7 + 2 *temp; + temp = 0; + if (rh_a & RH_A_NPS) + temp |= 0x0002; + if (rh_a & RH_A_PSM) + temp |= 0x0001; + if (rh_a & RH_A_NOCP) { + temp |= 0x0010; + } else if (rh_a & RH_A_OCPM) + temp |= 0x0008; + desc->wHubCharacteristics = cpu_to_le16(temp); + retval = u132_read_pcimem(u132, roothub.b, &rh_b); + if (retval) + return retval; + memset(desc->bitmap, 0xff, sizeof(desc->bitmap)); + desc->bitmap[0] = rh_b & RH_B_DR; + if (u132->num_ports > 7) { + desc->bitmap[1] = (rh_b & RH_B_DR) >> 8; + desc->bitmap[2] = 0xff; + } else + desc->bitmap[1] = 0xff; + return 0; +} + +static int u132_roothub_status(struct u132 *u132, __le32 *desc) +{ + u32 rh_status = -1; + int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status); + *desc = cpu_to_le32(rh_status); + return ret_status; +} + +static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex) +{ + if (wIndex == 0 || wIndex > u132->num_ports) { + return -EINVAL; + } else { + int port = wIndex - 1; + u32 rh_portstatus = -1; + int ret_portstatus = u132_read_pcimem(u132, + roothub.portstatus[port], &rh_portstatus); + *desc = cpu_to_le32(rh_portstatus); + if (*(u16 *) (desc + 2)) { + dev_info(&u132->platform_dev->dev, "Port %d Status Chan" + "ge = %08X\n", port, *desc); + } + return ret_portstatus; + } +} + + +/* this timer value might be vendor-specific ... */ +#define PORT_RESET_HW_MSEC 10 +#define PORT_RESET_MSEC 10 +/* wrap-aware logic morphed from <linux/jiffies.h> */ +#define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0) +static int u132_roothub_portreset(struct u132 *u132, int port_index) +{ + int retval; + u32 fmnumber; + u16 now; + u16 reset_done; + retval = u132_read_pcimem(u132, fmnumber, &fmnumber); + if (retval) + return retval; + now = fmnumber; + reset_done = now + PORT_RESET_MSEC; + do { + u32 portstat; + do { + retval = u132_read_pcimem(u132, + roothub.portstatus[port_index], &portstat); + if (retval) + return retval; + if (RH_PS_PRS & portstat) { + continue; + } else + break; + } while (tick_before(now, reset_done)); + if (RH_PS_PRS & portstat) + return -ENODEV; + if (RH_PS_CCS & portstat) { + if (RH_PS_PRSC & portstat) { + retval = u132_write_pcimem(u132, + roothub.portstatus[port_index], + RH_PS_PRSC); + if (retval) + return retval; + } + } else + break; /* start the next reset, + sleep till it's probably done */ + retval = u132_write_pcimem(u132, roothub.portstatus[port_index], + RH_PS_PRS); + if (retval) + return retval; + msleep(PORT_RESET_HW_MSEC); + retval = u132_read_pcimem(u132, fmnumber, &fmnumber); + if (retval) + return retval; + now = fmnumber; + } while (tick_before(now, reset_done)); + return 0; +} + +static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue, + u16 wIndex) +{ + if (wIndex == 0 || wIndex > u132->num_ports) { + return -EINVAL; + } else { + int retval; + int port_index = wIndex - 1; + struct u132_port *port = &u132->port[port_index]; + port->Status &= ~(1 << wValue); + switch (wValue) { + case USB_PORT_FEAT_SUSPEND: + retval = u132_write_pcimem(u132, + roothub.portstatus[port_index], RH_PS_PSS); + if (retval) + return retval; + return 0; + case USB_PORT_FEAT_POWER: + retval = u132_write_pcimem(u132, + roothub.portstatus[port_index], RH_PS_PPS); + if (retval) + return retval; + return 0; + case USB_PORT_FEAT_RESET: + retval = u132_roothub_portreset(u132, port_index); + if (retval) + return retval; + return 0; + default: + return -EPIPE; + } + } +} + +static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue, + u16 wIndex) +{ + if (wIndex == 0 || wIndex > u132->num_ports) { + return -EINVAL; + } else { + int port_index = wIndex - 1; + u32 temp; + int retval; + struct u132_port *port = &u132->port[port_index]; + port->Status &= ~(1 << wValue); + switch (wValue) { + case USB_PORT_FEAT_ENABLE: + temp = RH_PS_CCS; + break; + case USB_PORT_FEAT_C_ENABLE: + temp = RH_PS_PESC; + break; + case USB_PORT_FEAT_SUSPEND: + temp = RH_PS_POCI; + if ((u132->hc_control & OHCI_CTRL_HCFS) + != OHCI_USB_OPER) { + dev_err(&u132->platform_dev->dev, "TODO resume_" + "root_hub\n"); + } + break; + case USB_PORT_FEAT_C_SUSPEND: + temp = RH_PS_PSSC; + break; + case USB_PORT_FEAT_POWER: + temp = RH_PS_LSDA; + break; + case USB_PORT_FEAT_C_CONNECTION: + temp = RH_PS_CSC; + break; + case USB_PORT_FEAT_C_OVER_CURRENT: + temp = RH_PS_OCIC; + break; + case USB_PORT_FEAT_C_RESET: + temp = RH_PS_PRSC; + break; + default: + return -EPIPE; + } + retval = u132_write_pcimem(u132, roothub.portstatus[port_index], + temp); + if (retval) + return retval; + return 0; + } +} + + +/* the virtual root hub timer IRQ checks for hub status*/ +static int u132_hub_status_data(struct usb_hcd *hcd, char *buf) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov" + "ed %d\n", hcd, u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" + "ed\n", hcd); + dump_stack(); + return -ESHUTDOWN; + } else { + int i, changed = 0, length = 1; + if (u132->flags & OHCI_QUIRK_AMD756) { + if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) { + dev_err(&u132->platform_dev->dev, "bogus NDP, r" + "ereads as NDP=%d\n", + u132->hc_roothub_a & RH_A_NDP); + goto done; + } + } + if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC)) { + buf[0] = changed = 1; + } else + buf[0] = 0; + if (u132->num_ports > 7) { + buf[1] = 0; + length++; + } + for (i = 0; i < u132->num_ports; i++) { + if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC | + RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | + RH_PS_PRSC)) { + changed = 1; + if (i < 7) { + buf[0] |= 1 << (i + 1); + } else + buf[1] |= 1 << (i - 7); + continue; + } + if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS)) { + continue; + } + if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS)) { + continue; + } + } + done:return changed ? length : 0; + } +} + +static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, + u16 wIndex, char *buf, u16 wLength) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed\n"); + return -ESHUTDOWN; + } else { + int retval = 0; + down(&u132->sw_lock); + switch (typeReq) { + case ClearHubFeature: + switch (wValue) { + case C_HUB_OVER_CURRENT: + case C_HUB_LOCAL_POWER: + break; + default: + goto stall; + } + break; + case SetHubFeature: + switch (wValue) { + case C_HUB_OVER_CURRENT: + case C_HUB_LOCAL_POWER: + break; + default: + goto stall; + } + break; + case ClearPortFeature:{ + retval = u132_roothub_clearportfeature(u132, + wValue, wIndex); + if (retval) + goto error; + break; + } + case GetHubDescriptor:{ + retval = u132_roothub_descriptor(u132, + (struct usb_hub_descriptor *)buf); + if (retval) + goto error; + break; + } + case GetHubStatus:{ + retval = u132_roothub_status(u132, + (__le32 *) buf); + if (retval) + goto error; + break; + } + case GetPortStatus:{ + retval = u132_roothub_portstatus(u132, + (__le32 *) buf, wIndex); + if (retval) + goto error; + break; + } + case SetPortFeature:{ + retval = u132_roothub_setportfeature(u132, + wValue, wIndex); + if (retval) + goto error; + break; + } + default: + goto stall; + error:u132_disable(u132); + u132->going = 1; + break; + stall:retval = -EPIPE; + break; + } + up(&u132->sw_lock); + return retval; + } +} + +static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed\n"); + return -ESHUTDOWN; + } else + return 0; +} + +static void u132_hub_irq_enable(struct usb_hcd *hcd) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + } else if (u132->going > 0) + dev_err(&u132->platform_dev->dev, "device is being removed\n"); +} + + +#ifdef CONFIG_PM +static int u132_hcd_suspend(struct usb_hcd *hcd, pm_message_t message) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed\n"); + return -ESHUTDOWN; + } else + return 0; +} + +static int u132_hcd_resume(struct usb_hcd *hcd) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed\n"); + return -ESHUTDOWN; + } else + return 0; +} + +static int u132_bus_suspend(struct usb_hcd *hcd) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed\n"); + return -ESHUTDOWN; + } else + return 0; +} + +static int u132_bus_resume(struct usb_hcd *hcd) +{ + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed\n"); + return -ESHUTDOWN; + } else + return 0; +} + +#else +#define u132_hcd_suspend NULL +#define u132_hcd_resume NULL +#define u132_bus_suspend NULL +#define u132_bus_resume NULL +#endif +static struct hc_driver u132_hc_driver = { + .description = hcd_name, + .hcd_priv_size = sizeof(struct u132), + .irq = NULL, + .flags = HCD_USB11 | HCD_MEMORY, + .reset = u132_hcd_reset, + .start = u132_hcd_start, + .suspend = u132_hcd_suspend, + .resume = u132_hcd_resume, + .stop = u132_hcd_stop, + .urb_enqueue = u132_urb_enqueue, + .urb_dequeue = u132_urb_dequeue, + .endpoint_disable = u132_endpoint_disable, + .get_frame_number = u132_get_frame, + .hub_status_data = u132_hub_status_data, + .hub_control = u132_hub_control, + .bus_suspend = u132_bus_suspend, + .bus_resume = u132_bus_resume, + .start_port_reset = u132_start_port_reset, + .hub_irq_enable = u132_hub_irq_enable, +}; + +/* +* This function may be called by the USB core whilst the "usb_all_devices_rwsem" +* is held for writing, thus this module must not call usb_remove_hcd() +* synchronously - but instead should immediately stop activity to the +* device and ansynchronously call usb_remove_hcd() +*/ +static int __devexit u132_remove(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + if (hcd) { + struct u132 *u132 = hcd_to_u132(hcd); + dump_stack(); + if (u132->going++ > 1) { + return -ENODEV; + } else { + int rings = MAX_U132_RINGS; + int endps = MAX_U132_ENDPS; + msleep(100); + down(&u132->sw_lock); + u132_monitor_cancel_work(u132); + while (rings-- > 0) { + struct u132_ring *ring = &u132->ring[rings]; + u132_ring_cancel_work(u132, ring); + } while (endps-- > 0) { + struct u132_endp *endp = u132->endp[endps]; + if (endp) + u132_endp_cancel_work(u132, endp); + } + u132->going += 1; + printk(KERN_INFO "removing device u132.%d\n", + u132->sequence_num); + up(&u132->sw_lock); + usb_remove_hcd(hcd); + u132_u132_put_kref(u132); + return 0; + } + } else + return 0; +} + +static void u132_initialise(struct u132 *u132, struct platform_device *pdev) +{ + int rings = MAX_U132_RINGS; + int ports = MAX_U132_PORTS; + int addrs = MAX_U132_ADDRS; + int udevs = MAX_U132_UDEVS; + int endps = MAX_U132_ENDPS; + u132->board = pdev->dev.platform_data; + u132->platform_dev = pdev; + u132->power = 0; + u132->reset = 0; + init_MUTEX(&u132->sw_lock); + init_MUTEX(&u132->scheduler_lock); + while (rings-- > 0) { + struct u132_ring *ring = &u132->ring[rings]; + ring->u132 = u132; + ring->number = rings + 1; + ring->length = 0; + ring->curr_endp = NULL; + INIT_WORK(&ring->scheduler, u132_hcd_ring_work_scheduler, + (void *)ring); + } down(&u132->sw_lock); + INIT_WORK(&u132->monitor, u132_hcd_monitor_work, (void *)u132); + while (ports-- > 0) { + struct u132_port *port = &u132->port[ports]; + port->u132 = u132; + port->reset = 0; + port->enable = 0; + port->power = 0; + port->Status = 0; + } while (addrs-- > 0) { + struct u132_addr *addr = &u132->addr[addrs]; + addr->address = 0; + } while (udevs-- > 0) { + struct u132_udev *udev = &u132->udev[udevs]; + int i = ARRAY_SIZE(udev->endp_number_in); + int o = ARRAY_SIZE(udev->endp_number_out); + udev->usb_device = NULL; + udev->udev_number = 0; + udev->usb_addr = 0; + udev->portnumber = 0; + while (i-- > 0) { + udev->endp_number_in[i] = 0; + } + while (o-- > 0) { + udev->endp_number_out[o] = 0; + } + } + while (endps-- > 0) { + u132->endp[endps] = NULL; + } + up(&u132->sw_lock); + return; +} + +static int __devinit u132_probe(struct platform_device *pdev) +{ + struct usb_hcd *hcd; + msleep(100); + if (u132_exiting > 0) { + return -ENODEV; + } /* refuse to confuse usbcore */ + if (pdev->dev.dma_mask) { + return -EINVAL; + } + hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, pdev->dev.bus_id); + if (!hcd) { + printk(KERN_ERR "failed to create the usb hcd struct for U132\n" + ); + ftdi_elan_gone_away(pdev); + return -ENOMEM; + } else { + int retval = 0; + struct u132 *u132 = hcd_to_u132(hcd); + hcd->rsrc_start = 0; + down(&u132_module_lock); + list_add_tail(&u132->u132_list, &u132_static_list); + u132->sequence_num = ++u132_instances; + up(&u132_module_lock); + u132_u132_init_kref(u132); + u132_initialise(u132, pdev); + hcd->product_desc = "ELAN U132 Host Controller"; + retval = usb_add_hcd(hcd, 0, 0); + if (retval != 0) { + dev_err(&u132->platform_dev->dev, "init error %d\n", + retval); + u132_u132_put_kref(u132); + return retval; + } else { + u132_monitor_queue_work(u132, 100); + return 0; + } + } +} + + +#ifdef CONFIG_PM +/* for this device there's no useful distinction between the controller +* and its root hub, except that the root hub only gets direct PM calls +* when CONFIG_USB_SUSPEND is enabled. +*/ +static int u132_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed\n"); + return -ESHUTDOWN; + } else { + int retval = 0; + if (state.event == PM_EVENT_FREEZE) { + retval = u132_bus_suspend(hcd); + } else if (state.event == PM_EVENT_SUSPEND) { + int ports = MAX_U132_PORTS; + while (ports-- > 0) { + port_power(u132, ports, 0); + } + } + if (retval == 0) + pdev->dev.power.power_state = state; + return retval; + } +} + +static int u132_resume(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct u132 *u132 = hcd_to_u132(hcd); + if (u132->going > 1) { + dev_err(&u132->platform_dev->dev, "device has been removed %d\n" + , u132->going); + return -ENODEV; + } else if (u132->going > 0) { + dev_err(&u132->platform_dev->dev, "device is being removed\n"); + return -ESHUTDOWN; + } else { + int retval = 0; + if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) { + int ports = MAX_U132_PORTS; + while (ports-- > 0) { + port_power(u132, ports, 1); + } + retval = 0; + } else { + pdev->dev.power.power_state = PMSG_ON; + retval = u132_bus_resume(hcd); + } + return retval; + } +} + +#else +#define u132_suspend NULL +#define u132_resume NULL +#endif +/* +* this driver is loaded explicitely by ftdi_u132 +* +* the platform_driver struct is static because it is per type of module +*/ +static struct platform_driver u132_platform_driver = { + .probe = u132_probe, + .remove = __devexit_p(u132_remove), + .suspend = u132_suspend, + .resume = u132_resume, + .driver = { + .name = (char *)hcd_name, + .owner = THIS_MODULE, + }, +}; +static int __init u132_hcd_init(void) +{ + int retval; + INIT_LIST_HEAD(&u132_static_list); + u132_instances = 0; + u132_exiting = 0; + init_MUTEX(&u132_module_lock); + if (usb_disabled()) + return -ENODEV; + printk(KERN_INFO "driver %s built at %s on %s\n", hcd_name, __TIME__, + __DATE__); + workqueue = create_singlethread_workqueue("u132"); + retval = platform_driver_register(&u132_platform_driver); + return retval; +} + + +module_init(u132_hcd_init); +static void __exit u132_hcd_exit(void) +{ + struct u132 *u132; + struct u132 *temp; + down(&u132_module_lock); + u132_exiting += 1; + up(&u132_module_lock); + list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) { + platform_device_unregister(u132->platform_dev); + } platform_driver_unregister(&u132_platform_driver); + printk(KERN_INFO "u132-hcd driver deregistered\n"); + wait_event(u132_hcd_wait, u132_instances == 0); + flush_workqueue(workqueue); + destroy_workqueue(workqueue); +} + + +module_exit(u132_hcd_exit); +MODULE_LICENSE("GPL");
diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c index dc286a4..e345f15 100644 --- a/drivers/usb/host/uhci-debug.c +++ b/drivers/usb/host/uhci-debug.c
@@ -16,7 +16,7 @@ #include "uhci-hcd.h" -#define uhci_debug_operations (* (struct file_operations *) NULL) +#define uhci_debug_operations (* (const struct file_operations *) NULL) static struct dentry *uhci_debugfs_root; #ifdef DEBUG @@ -428,7 +428,7 @@ static int uhci_debug_open(struct inode *inode, struct file *file) { - struct uhci_hcd *uhci = inode->u.generic_ip; + struct uhci_hcd *uhci = inode->i_private; struct uhci_debug *up; int ret = -ENOMEM; unsigned long flags; @@ -500,7 +500,7 @@ } #undef uhci_debug_operations -static struct file_operations uhci_debug_operations = { +static const struct file_operations uhci_debug_operations = { .owner = THIS_MODULE, .open = uhci_debug_open, .llseek = uhci_debug_lseek,
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index 4151f61..eb4eab9 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c
@@ -734,6 +734,10 @@ /* FIXME: Enable non-PME# remote wakeup? */ + /* make sure snapshot being resumed re-enumerates everything */ + if (message.event == PM_EVENT_PRETHAW) + uhci_hc_died(uhci); + done_okay: clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); done: @@ -909,8 +913,7 @@ return 0; init_failed: - if (kmem_cache_destroy(uhci_up_cachep)) - warn("not all urb_privs were freed!"); + kmem_cache_destroy(uhci_up_cachep); up_failed: debugfs_remove(uhci_debugfs_root); @@ -926,10 +929,7 @@ static void __exit uhci_hcd_cleanup(void) { pci_unregister_driver(&uhci_pci_driver); - - if (kmem_cache_destroy(uhci_up_cachep)) - warn("not all urb_privs were freed!"); - + kmem_cache_destroy(uhci_up_cachep); debugfs_remove(uhci_debugfs_root); kfree(errbuf); }
diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c index c545ef9..16fb72e 100644 --- a/drivers/usb/host/uhci-hub.c +++ b/drivers/usb/host/uhci-hub.c
@@ -84,6 +84,7 @@ unsigned long port_addr) { int status; + int i; if (inw(port_addr) & (USBPORTSC_SUSP | USBPORTSC_RD)) { CLR_RH_PORTSTAT(USBPORTSC_SUSP | USBPORTSC_RD); @@ -92,9 +93,14 @@ /* The controller won't actually turn off the RD bit until * it has had a chance to send a low-speed EOP sequence, - * which takes 3 bit times (= 2 microseconds). We'll delay - * slightly longer for good luck. */ - udelay(4); + * which is supposed to take 3 bit times (= 2 microseconds). + * Experiments show that some controllers take longer, so + * we'll poll for completion. */ + for (i = 0; i < 10; ++i) { + if (!(inw(port_addr) & USBPORTSC_RD)) + break; + udelay(1); + } } clear_bit(port, &uhci->resuming_ports); }
diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c index 08daf40..ca6305c 100644 --- a/drivers/usb/image/mdc800.c +++ b/drivers/usb/image/mdc800.c
@@ -424,7 +424,7 @@ ***************************************************************************/ static struct usb_driver mdc800_usb_driver; -static struct file_operations mdc800_device_ops; +static const struct file_operations mdc800_device_ops; static struct usb_class_driver mdc800_class = { .name = "mdc800%d", .fops = &mdc800_device_ops, @@ -941,7 +941,7 @@ ****************************************************************************/ /* File Operations of this drivers */ -static struct file_operations mdc800_device_ops = +static const struct file_operations mdc800_device_ops = { .owner = THIS_MODULE, .read = mdc800_device_read,
diff --git a/drivers/usb/input/Kconfig b/drivers/usb/input/Kconfig index 650103b..a102a58 100644 --- a/drivers/usb/input/Kconfig +++ b/drivers/usb/input/Kconfig
@@ -205,10 +205,12 @@ depends on USB && INPUT ---help--- USB Touchscreen driver for: - - eGalax Touchkit USB + - eGalax Touchkit USB (also includes eTurboTouch CT-410/510/700) - PanJit TouchSet USB - - 3M MicroTouch USB + - 3M MicroTouch USB (EX II series) - ITM + - some other eTurboTouch + - Gunze AHL61 Have a look at <http://linux.chapter7.ch/touchkit/> for a usage description and the required user-space stuff. @@ -218,7 +220,7 @@ config USB_TOUCHSCREEN_EGALAX default y - bool "eGalax device support" if EMBEDDED + bool "eGalax, eTurboTouch CT-410/510/700 device support" if EMBEDDED depends on USB_TOUCHSCREEN config USB_TOUCHSCREEN_PANJIT @@ -228,7 +230,7 @@ config USB_TOUCHSCREEN_3M default y - bool "3M/Microtouch device support" if EMBEDDED + bool "3M/Microtouch EX II series device support" if EMBEDDED depends on USB_TOUCHSCREEN config USB_TOUCHSCREEN_ITM @@ -236,6 +238,16 @@ bool "ITM device support" if EMBEDDED depends on USB_TOUCHSCREEN +config USB_TOUCHSCREEN_ETURBO + default y + bool "eTurboTouch (non-eGalax compatible) device support" if EMBEDDED + depends on USB_TOUCHSCREEN + +config USB_TOUCHSCREEN_GUNZE + default y + bool "Gunze AHL61 device support" if EMBEDDED + depends on USB_TOUCHSCREEN + config USB_YEALINK tristate "Yealink usb-p1k voip phone" depends on USB && INPUT && EXPERIMENTAL @@ -326,3 +338,13 @@ To compile this driver as a module, choose M here: the module will be called appletouch. + +config USB_TRANCEVIBRATOR + tristate "PlayStation 2 Trance Vibrator driver support" + depends on USB + help + Say Y here if you want to connect a PlayStation 2 Trance Vibrator + device to your computer's USB port. + + To compile this driver as a module, choose M here: the + module will be called trancevibrator.
diff --git a/drivers/usb/input/Makefile b/drivers/usb/input/Makefile index 7641145..48551be 100644 --- a/drivers/usb/input/Makefile +++ b/drivers/usb/input/Makefile
@@ -3,6 +3,7 @@ # # Multipart objects. +wacom-objs := wacom_sys.o wacom_wac.o usbhid-objs := hid-core.o # Optional parts of multipart objects. @@ -44,6 +45,7 @@ obj-$(CONFIG_USB_YEALINK) += yealink.o obj-$(CONFIG_USB_XPAD) += xpad.o obj-$(CONFIG_USB_APPLETOUCH) += appletouch.o +obj-$(CONFIG_USB_TRANCEVIBRATOR) += trancevibrator.o ifeq ($(CONFIG_USB_DEBUG),y) EXTRA_CFLAGS += -DDEBUG
diff --git a/drivers/usb/input/acecad.c b/drivers/usb/input/acecad.c index 18c10e1..d83603b 100644 --- a/drivers/usb/input/acecad.c +++ b/drivers/usb/input/acecad.c
@@ -141,10 +141,7 @@ endpoint = &interface->endpoint[0].desc; - if (!(endpoint->bEndpointAddress & 0x80)) - return -ENODEV; - - if ((endpoint->bmAttributes & 3) != 3) + if (!usb_endpoint_is_int_in(endpoint)) return -ENODEV; pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
diff --git a/drivers/usb/input/appletouch.c b/drivers/usb/input/appletouch.c index 044faa0..0aa9cc2 100644 --- a/drivers/usb/input/appletouch.c +++ b/drivers/usb/input/appletouch.c
@@ -436,10 +436,7 @@ iface_desc = iface->cur_altsetting; for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { endpoint = &iface_desc->endpoint[i].desc; - if (!int_in_endpointAddr && - (endpoint->bEndpointAddress & USB_DIR_IN) && - ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) - == USB_ENDPOINT_XFER_INT)) { + if (!int_in_endpointAddr && usb_endpoint_is_int_in(endpoint)) { /* we found an interrupt in endpoint */ int_in_endpointAddr = endpoint->bEndpointAddress; break;
diff --git a/drivers/usb/input/ati_remote.c b/drivers/usb/input/ati_remote.c index 3719fcb..3558d7e 100644 --- a/drivers/usb/input/ati_remote.c +++ b/drivers/usb/input/ati_remote.c
@@ -732,12 +732,8 @@ endpoint_in = &iface_host->endpoint[0].desc; endpoint_out = &iface_host->endpoint[1].desc; - if (!(endpoint_in->bEndpointAddress & USB_DIR_IN)) { - err("%s: Unexpected endpoint_in->bEndpointAddress\n", __FUNCTION__); - return -ENODEV; - } - if ((endpoint_in->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT) { - err("%s: Unexpected endpoint_in->bmAttributes\n", __FUNCTION__); + if (!usb_endpoint_is_int_in(endpoint_in)) { + err("%s: Unexpected endpoint_in\n", __FUNCTION__); return -ENODEV; } if (le16_to_cpu(endpoint_in->wMaxPacketSize) == 0) {
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c index 3305fb6..2a3e9e9b 100644 --- a/drivers/usb/input/hid-core.c +++ b/drivers/usb/input/hid-core.c
@@ -1023,7 +1023,8 @@ return; case -EILSEQ: /* protocol error or unplug */ case -EPROTO: /* protocol error or unplug */ - case -ETIMEDOUT: /* NAK */ + case -ETIME: /* protocol error or unplug */ + case -ETIMEDOUT: /* Should never happen, but... */ clear_bit(HID_IN_RUNNING, &hid->iofl); hid_io_error(hid); return; @@ -1535,13 +1536,17 @@ #define USB_VENDOR_ID_GLAB 0x06c2 #define USB_DEVICE_ID_4_PHIDGETSERVO_30 0x0038 #define USB_DEVICE_ID_1_PHIDGETSERVO_30 0x0039 -#define USB_DEVICE_ID_8_8_8_IF_KIT 0x0045 #define USB_DEVICE_ID_0_0_4_IF_KIT 0x0040 +#define USB_DEVICE_ID_0_16_16_IF_KIT 0x0044 +#define USB_DEVICE_ID_8_8_8_IF_KIT 0x0045 +#define USB_DEVICE_ID_0_8_7_IF_KIT 0x0051 #define USB_DEVICE_ID_0_8_8_IF_KIT 0x0053 +#define USB_DEVICE_ID_PHIDGET_MOTORCONTROL 0x0058 #define USB_VENDOR_ID_WISEGROUP 0x0925 #define USB_DEVICE_ID_1_PHIDGETSERVO_20 0x8101 #define USB_DEVICE_ID_4_PHIDGETSERVO_20 0x8104 +#define USB_DEVICE_ID_8_8_4_IF_KIT 0x8201 #define USB_DEVICE_ID_DUAL_USB_JOYPAD 0x8866 #define USB_VENDOR_ID_WISEGROUP_LTD 0x6677 @@ -1591,6 +1596,10 @@ #define USB_VENDOR_ID_YEALINK 0x6993 #define USB_DEVICE_ID_YEALINK_P1K_P4K_B2K 0xb001 + +#define USB_VENDOR_ID_ALCOR 0x058f +#define USB_DEVICE_ID_ALCOR_USBRS232 0x9720 + /* * Alphabetically sorted blacklist by quirk type. */ @@ -1608,6 +1617,7 @@ { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW40, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW24, HID_QUIRK_IGNORE }, @@ -1620,9 +1630,12 @@ { USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30, HID_QUIRK_IGNORE }, - { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90, HID_QUIRK_IGNORE }, @@ -1690,7 +1703,11 @@ { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE }, @@ -1701,6 +1718,7 @@ { USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20, HID_QUIRK_IGNORE }, + { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K, HID_QUIRK_IGNORE }, { USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR, HID_QUIRK_IGNORE },
diff --git a/drivers/usb/input/hiddev.c b/drivers/usb/input/hiddev.c index f6b839c..a2b419d 100644 --- a/drivers/usb/input/hiddev.c +++ b/drivers/usb/input/hiddev.c
@@ -722,7 +722,7 @@ return -EINVAL; } -static struct file_operations hiddev_fops = { +static const struct file_operations hiddev_fops = { .owner = THIS_MODULE, .read = hiddev_read, .write = hiddev_write,
diff --git a/drivers/usb/input/itmtouch.c b/drivers/usb/input/itmtouch.c index 86acb5f..61966d7 100644 --- a/drivers/usb/input/itmtouch.c +++ b/drivers/usb/input/itmtouch.c
@@ -87,7 +87,7 @@ case 0: /* success */ break; - case -ETIMEDOUT: + case -ETIME: /* this urb is timing out */ dbg("%s - urb timed out - was the device unplugged?", __FUNCTION__);
diff --git a/drivers/usb/input/keyspan_remote.c b/drivers/usb/input/keyspan_remote.c index 4723b31..a903595 100644 --- a/drivers/usb/input/keyspan_remote.c +++ b/drivers/usb/input/keyspan_remote.c
@@ -420,8 +420,7 @@ for (i = 0; i < iface->desc.bNumEndpoints; ++i) { endpoint = &iface->endpoint[i].desc; - if ((endpoint->bEndpointAddress & USB_DIR_IN) && - ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) { + if (usb_endpoint_is_int_in(endpoint)) { /* we found our interrupt in endpoint */ return endpoint; }
diff --git a/drivers/usb/input/mtouchusb.c b/drivers/usb/input/mtouchusb.c index a9ccda8..5dce951 100644 --- a/drivers/usb/input/mtouchusb.c +++ b/drivers/usb/input/mtouchusb.c
@@ -107,7 +107,7 @@ case 0: /* success */ break; - case -ETIMEDOUT: + case -ETIME: /* this urb is timing out */ dbg("%s - urb timed out - was the device unplugged?", __FUNCTION__);
diff --git a/drivers/usb/input/powermate.c b/drivers/usb/input/powermate.c index b3c0d0c..f0f8db6 100644 --- a/drivers/usb/input/powermate.c +++ b/drivers/usb/input/powermate.c
@@ -313,9 +313,7 @@ interface = intf->cur_altsetting; endpoint = &interface->endpoint[0].desc; - if (!(endpoint->bEndpointAddress & 0x80)) - return -EIO; - if ((endpoint->bmAttributes & 3) != 3) + if (!usb_endpoint_is_int_in(endpoint)) return -EIO; usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
diff --git a/drivers/usb/input/touchkitusb.c b/drivers/usb/input/touchkitusb.c index 0149043..30b9f82 100644 --- a/drivers/usb/input/touchkitusb.c +++ b/drivers/usb/input/touchkitusb.c
@@ -201,7 +201,7 @@ case 0: /* success */ break; - case -ETIMEDOUT: + case -ETIME: /* this urb is timing out */ dbg("%s - urb timed out - was the device unplugged?", __FUNCTION__);
diff --git a/drivers/usb/input/trancevibrator.c b/drivers/usb/input/trancevibrator.c new file mode 100644 index 0000000..33cd91d --- /dev/null +++ b/drivers/usb/input/trancevibrator.c
@@ -0,0 +1,159 @@ +/* + * PlayStation 2 Trance Vibrator driver + * + * Copyright (C) 2006 Sam Hocevar <sam@zoy.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* Standard include files */ +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/usb.h> + +/* Version Information */ +#define DRIVER_VERSION "v1.1" +#define DRIVER_AUTHOR "Sam Hocevar, sam@zoy.org" +#define DRIVER_DESC "PlayStation 2 Trance Vibrator driver" + +#define TRANCEVIBRATOR_VENDOR_ID 0x0b49 /* ASCII Corporation */ +#define TRANCEVIBRATOR_PRODUCT_ID 0x064f /* Trance Vibrator */ + +static struct usb_device_id id_table [] = { + { USB_DEVICE(TRANCEVIBRATOR_VENDOR_ID, TRANCEVIBRATOR_PRODUCT_ID) }, + { }, +}; +MODULE_DEVICE_TABLE (usb, id_table); + +/* Driver-local specific stuff */ +struct trancevibrator { + struct usb_device *udev; + unsigned int speed; +}; + +static ssize_t show_speed(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct trancevibrator *tv = usb_get_intfdata(intf); + + return sprintf(buf, "%d\n", tv->speed); +} + +static ssize_t set_speed(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct trancevibrator *tv = usb_get_intfdata(intf); + int temp, retval; + + temp = simple_strtoul(buf, NULL, 10); + if (temp > 255) + temp = 255; + else if (temp < 0) + temp = 0; + tv->speed = temp; + + dev_dbg(&tv->udev->dev, "speed = %d\n", tv->speed); + + /* Set speed */ + retval = usb_control_msg(tv->udev, usb_sndctrlpipe(tv->udev, 0), + 0x01, /* vendor request: set speed */ + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, + tv->speed, /* speed value */ + 0, NULL, 0, USB_CTRL_GET_TIMEOUT); + if (retval) { + dev_dbg(&tv->udev->dev, "retval = %d\n", retval); + return retval; + } + return count; +} + +static DEVICE_ATTR(speed, S_IWUGO | S_IRUGO, show_speed, set_speed); + +static int tv_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(interface); + struct trancevibrator *dev; + int retval; + + dev = kzalloc(sizeof(struct trancevibrator), GFP_KERNEL); + if (dev == NULL) { + dev_err(&interface->dev, "Out of memory\n"); + retval = -ENOMEM; + goto error; + } + + dev->udev = usb_get_dev(udev); + usb_set_intfdata(interface, dev); + retval = device_create_file(&interface->dev, &dev_attr_speed); + if (retval) + goto error_create_file; + + return 0; + +error_create_file: + usb_put_dev(udev); + usb_set_intfdata(interface, NULL); +error: + kfree(dev); + return retval; +} + +static void tv_disconnect(struct usb_interface *interface) +{ + struct trancevibrator *dev; + + dev = usb_get_intfdata (interface); + usb_set_intfdata(interface, NULL); + device_remove_file(&interface->dev, &dev_attr_speed); + usb_put_dev(dev->udev); + kfree(dev); +} + +/* USB subsystem object */ +static struct usb_driver tv_driver = { + .name = "trancevibrator", + .probe = tv_probe, + .disconnect = tv_disconnect, + .id_table = id_table, +}; + +static int __init tv_init(void) +{ + int retval = usb_register(&tv_driver); + if (retval) { + err("usb_register failed. Error number %d", retval); + return retval; + } + + info(DRIVER_VERSION ":" DRIVER_DESC); + return 0; +} + +static void __exit tv_exit(void) +{ + usb_deregister(&tv_driver); +} + +module_init (tv_init); +module_exit (tv_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL");
diff --git a/drivers/usb/input/usbmouse.c b/drivers/usb/input/usbmouse.c index 446935b..0fb792b 100644 --- a/drivers/usb/input/usbmouse.c +++ b/drivers/usb/input/usbmouse.c
@@ -218,7 +218,7 @@ static struct usb_device_id usb_mouse_id_table [] = { { USB_INTERFACE_INFO(3, 1, 2) }, - { } /* Terminating entry */ + { } /* Terminating entry */ }; MODULE_DEVICE_TABLE (usb, usb_mouse_id_table);
diff --git a/drivers/usb/input/usbtouchscreen.c b/drivers/usb/input/usbtouchscreen.c index a338bf4..4640d10 100644 --- a/drivers/usb/input/usbtouchscreen.c +++ b/drivers/usb/input/usbtouchscreen.c
@@ -2,9 +2,12 @@ * usbtouchscreen.c * Driver for USB Touchscreens, supporting those devices: * - eGalax Touchkit - * - 3M/Microtouch + * includes eTurboTouch CT-410/510/700 + * - 3M/Microtouch EX II series * - ITM * - PanJit TouchSet + * - eTurboTouch + * - Gunze AHL61 * * Copyright (C) 2004-2006 by Daniel Ritz <daniel.ritz@gmx.ch> * Copyright (C) by Todd E. Johnson (mtouchusb.c) @@ -42,7 +45,7 @@ #include <linux/usb/input.h> -#define DRIVER_VERSION "v0.3" +#define DRIVER_VERSION "v0.4" #define DRIVER_AUTHOR "Daniel Ritz <daniel.ritz@gmx.ch>" #define DRIVER_DESC "USB Touchscreen Driver" @@ -60,6 +63,7 @@ int flags; void (*process_pkt) (struct usbtouch_usb *usbtouch, struct pt_regs *regs, unsigned char *pkt, int len); + int (*get_pkt_len) (unsigned char *pkt, int len); int (*read_data) (unsigned char *pkt, int *x, int *y, int *touch, int *press); int (*init) (struct usbtouch_usb *usbtouch); }; @@ -81,8 +85,16 @@ char phys[64]; }; -static void usbtouch_process_pkt(struct usbtouch_usb *usbtouch, - struct pt_regs *regs, unsigned char *pkt, int len); + +#if defined(CONFIG_USB_TOUCHSCREEN_EGALAX) || defined(CONFIG_USB_TOUCHSCREEN_ETURBO) +#define MULTI_PACKET +#endif + +#ifdef MULTI_PACKET +static void usbtouch_process_multi(struct usbtouch_usb *usbtouch, + struct pt_regs *regs, + unsigned char *pkt, int len); +#endif /* device types */ enum { @@ -91,14 +103,19 @@ DEVTYPE_PANJIT, DEVTYPE_3M, DEVTYPE_ITM, + DEVTYPE_ETURBO, + DEVTYPE_GUNZE, }; static struct usb_device_id usbtouch_devices[] = { #ifdef CONFIG_USB_TOUCHSCREEN_EGALAX {USB_DEVICE(0x3823, 0x0001), .driver_info = DEVTYPE_EGALAX}, + {USB_DEVICE(0x3823, 0x0002), .driver_info = DEVTYPE_EGALAX}, {USB_DEVICE(0x0123, 0x0001), .driver_info = DEVTYPE_EGALAX}, {USB_DEVICE(0x0eef, 0x0001), .driver_info = DEVTYPE_EGALAX}, {USB_DEVICE(0x0eef, 0x0002), .driver_info = DEVTYPE_EGALAX}, + {USB_DEVICE(0x1234, 0x0001), .driver_info = DEVTYPE_EGALAX}, + {USB_DEVICE(0x1234, 0x0002), .driver_info = DEVTYPE_EGALAX}, #endif #ifdef CONFIG_USB_TOUCHSCREEN_PANJIT @@ -116,6 +133,14 @@ {USB_DEVICE(0x0403, 0xf9e9), .driver_info = DEVTYPE_ITM}, #endif +#ifdef CONFIG_USB_TOUCHSCREEN_ETURBO + {USB_DEVICE(0x1234, 0x5678), .driver_info = DEVTYPE_ETURBO}, +#endif + +#ifdef CONFIG_USB_TOUCHSCREEN_GUNZE + {USB_DEVICE(0x0637, 0x0001), .driver_info = DEVTYPE_GUNZE}, +#endif + {} }; @@ -140,82 +165,23 @@ *touch = pkt[0] & 0x01; return 1; - } -static int egalax_get_pkt_len(unsigned char *buf) +static int egalax_get_pkt_len(unsigned char *buf, int len) { switch (buf[0] & EGALAX_PKT_TYPE_MASK) { case EGALAX_PKT_TYPE_REPT: return 5; case EGALAX_PKT_TYPE_DIAG: + if (len < 2) + return -1; + return buf[1] + 2; } return 0; } - -static void egalax_process(struct usbtouch_usb *usbtouch, struct pt_regs *regs, - unsigned char *pkt, int len) -{ - unsigned char *buffer; - int pkt_len, buf_len, pos; - - /* if the buffer contains data, append */ - if (unlikely(usbtouch->buf_len)) { - int tmp; - - /* if only 1 byte in buffer, add another one to get length */ - if (usbtouch->buf_len == 1) - usbtouch->buffer[1] = pkt[0]; - - pkt_len = egalax_get_pkt_len(usbtouch->buffer); - - /* unknown packet: drop everything */ - if (!pkt_len) - return; - - /* append, process */ - tmp = pkt_len - usbtouch->buf_len; - memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, tmp); - usbtouch_process_pkt(usbtouch, regs, usbtouch->buffer, pkt_len); - - buffer = pkt + tmp; - buf_len = len - tmp; - } else { - buffer = pkt; - buf_len = len; - } - - /* only one byte left in buffer */ - if (unlikely(buf_len == 1)) { - usbtouch->buffer[0] = buffer[0]; - usbtouch->buf_len = 1; - return; - } - - /* loop over the buffer */ - pos = 0; - while (pos < buf_len) { - /* get packet len */ - pkt_len = egalax_get_pkt_len(buffer + pos); - - /* unknown packet: drop everything */ - if (unlikely(!pkt_len)) - return; - - /* full packet: process */ - if (likely(pkt_len <= buf_len)) { - usbtouch_process_pkt(usbtouch, regs, buffer + pos, pkt_len); - } else { - /* incomplete packet: save in buffer */ - memcpy(usbtouch->buffer, buffer + pos, buf_len - pos); - usbtouch->buf_len = buf_len - pos; - } - pos += pkt_len; - } -} #endif @@ -254,7 +220,7 @@ static int mtouch_init(struct usbtouch_usb *usbtouch) { - int ret; + int ret, i; ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0), MTOUCHUSB_RESET, @@ -264,15 +230,20 @@ __FUNCTION__, ret); if (ret < 0) return ret; + msleep(150); - ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0), - MTOUCHUSB_ASYNC_REPORT, - USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, - 1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT); - dbg("%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d", - __FUNCTION__, ret); - if (ret < 0) - return ret; + for (i = 0; i < 3; i++) { + ret = usb_control_msg(usbtouch->udev, usb_rcvctrlpipe(usbtouch->udev, 0), + MTOUCHUSB_ASYNC_REPORT, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, + 1, 1, NULL, 0, USB_CTRL_SET_TIMEOUT); + dbg("%s - usb_control_msg - MTOUCHUSB_ASYNC_REPORT - bytes|err: %d", + __FUNCTION__, ret); + if (ret >= 0) + break; + if (ret != -EPIPE) + return ret; + } return 0; } @@ -296,6 +267,54 @@ /***************************************************************************** + * eTurboTouch part + */ +#ifdef CONFIG_USB_TOUCHSCREEN_ETURBO +static int eturbo_read_data(unsigned char *pkt, int *x, int *y, int *touch, int *press) +{ + unsigned int shift; + + /* packets should start with sync */ + if (!(pkt[0] & 0x80)) + return 0; + + shift = (6 - (pkt[0] & 0x03)); + *x = ((pkt[3] << 7) | pkt[4]) >> shift; + *y = ((pkt[1] << 7) | pkt[2]) >> shift; + *touch = (pkt[0] & 0x10) ? 1 : 0; + + return 1; +} + +static int eturbo_get_pkt_len(unsigned char *buf, int len) +{ + if (buf[0] & 0x80) + return 5; + if (buf[0] == 0x01) + return 3; + return 0; +} +#endif + + +/***************************************************************************** + * Gunze part + */ +#ifdef CONFIG_USB_TOUCHSCREEN_GUNZE +static int gunze_read_data(unsigned char *pkt, int *x, int *y, int *touch, int *press) +{ + if (!(pkt[0] & 0x80) || ((pkt[1] | pkt[2] | pkt[3]) & 0x80)) + return 0; + + *x = ((pkt[0] & 0x1F) << 7) | (pkt[2] & 0x7F); + *y = ((pkt[1] & 0x1F) << 7) | (pkt[3] & 0x7F); + *touch = pkt[0] & 0x20; + + return 1; +} +#endif + +/***************************************************************************** * the different device descriptors */ static struct usbtouch_device_info usbtouch_dev_info[] = { @@ -307,7 +326,8 @@ .max_yc = 0x07ff, .rept_size = 16, .flags = USBTOUCH_FLG_BUFFER, - .process_pkt = egalax_process, + .process_pkt = usbtouch_process_multi, + .get_pkt_len = egalax_get_pkt_len, .read_data = egalax_read_data, }, #endif @@ -346,6 +366,31 @@ .read_data = itm_read_data, }, #endif + +#ifdef CONFIG_USB_TOUCHSCREEN_ETURBO + [DEVTYPE_ETURBO] = { + .min_xc = 0x0, + .max_xc = 0x07ff, + .min_yc = 0x0, + .max_yc = 0x07ff, + .rept_size = 8, + .flags = USBTOUCH_FLG_BUFFER, + .process_pkt = usbtouch_process_multi, + .get_pkt_len = eturbo_get_pkt_len, + .read_data = eturbo_read_data, + }, +#endif + +#ifdef CONFIG_USB_TOUCHSCREEN_GUNZE + [DEVTYPE_GUNZE] = { + .min_xc = 0x0, + .max_xc = 0x0fff, + .min_yc = 0x0, + .max_yc = 0x0fff, + .rept_size = 4, + .read_data = gunze_read_data, + }, +#endif }; @@ -377,6 +422,83 @@ } +#ifdef MULTI_PACKET +static void usbtouch_process_multi(struct usbtouch_usb *usbtouch, + struct pt_regs *regs, + unsigned char *pkt, int len) +{ + unsigned char *buffer; + int pkt_len, pos, buf_len, tmp; + + /* process buffer */ + if (unlikely(usbtouch->buf_len)) { + /* try to get size */ + pkt_len = usbtouch->type->get_pkt_len( + usbtouch->buffer, usbtouch->buf_len); + + /* drop? */ + if (unlikely(!pkt_len)) + goto out_flush_buf; + + /* need to append -pkt_len bytes before able to get size */ + if (unlikely(pkt_len < 0)) { + int append = -pkt_len; + if (unlikely(append > len)) + append = len; + if (usbtouch->buf_len + append >= usbtouch->type->rept_size) + goto out_flush_buf; + memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, append); + usbtouch->buf_len += append; + + pkt_len = usbtouch->type->get_pkt_len( + usbtouch->buffer, usbtouch->buf_len); + if (pkt_len < 0) + return; + } + + /* append */ + tmp = pkt_len - usbtouch->buf_len; + if (usbtouch->buf_len + tmp >= usbtouch->type->rept_size) + goto out_flush_buf; + memcpy(usbtouch->buffer + usbtouch->buf_len, pkt, tmp); + usbtouch_process_pkt(usbtouch, regs, usbtouch->buffer, pkt_len); + + buffer = pkt + tmp; + buf_len = len - tmp; + } else { + buffer = pkt; + buf_len = len; + } + + /* loop over the received packet, process */ + pos = 0; + while (pos < buf_len) { + /* get packet len */ + pkt_len = usbtouch->type->get_pkt_len(buffer + pos, len); + + /* unknown packet: drop everything */ + if (unlikely(!pkt_len)) + goto out_flush_buf; + + /* full packet: process */ + if (likely((pkt_len > 0) && (pkt_len <= buf_len - pos))) { + usbtouch_process_pkt(usbtouch, regs, buffer + pos, pkt_len); + } else { + /* incomplete packet: save in buffer */ + memcpy(usbtouch->buffer, buffer + pos, buf_len - pos); + usbtouch->buf_len = buf_len - pos; + return; + } + pos += pkt_len; + } + +out_flush_buf: + usbtouch->buf_len = 0; + return; +} +#endif + + static void usbtouch_irq(struct urb *urb, struct pt_regs *regs) { struct usbtouch_usb *usbtouch = urb->context; @@ -386,7 +508,7 @@ case 0: /* success */ break; - case -ETIMEDOUT: + case -ETIME: /* this urb is timing out */ dbg("%s - urb timed out - was the device unplugged?", __FUNCTION__); @@ -452,7 +574,7 @@ struct usb_endpoint_descriptor *endpoint; struct usb_device *udev = interface_to_usbdev(intf); struct usbtouch_device_info *type; - int err; + int err = -ENOMEM; interface = intf->cur_altsetting; endpoint = &interface->endpoint[0].desc; @@ -526,6 +648,7 @@ usbtouch->data, type->rept_size, usbtouch_irq, usbtouch, endpoint->bInterval); + usbtouch->irq->dev = usbtouch->udev; usbtouch->irq->transfer_dma = usbtouch->data_dma; usbtouch->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; @@ -553,7 +676,7 @@ out_free: input_free_device(input_dev); kfree(usbtouch); - return -ENOMEM; + return err; } static void usbtouch_disconnect(struct usb_interface *intf)
diff --git a/drivers/usb/input/wacom.c b/drivers/usb/input/wacom.c deleted file mode 100644 index 369461a..0000000 --- a/drivers/usb/input/wacom.c +++ /dev/null
@@ -1,1003 +0,0 @@ -/* - * USB Wacom Graphire and Wacom Intuos tablet support - * - * Copyright (c) 2000-2004 Vojtech Pavlik <vojtech@ucw.cz> - * Copyright (c) 2000 Andreas Bach Aaen <abach@stofanet.dk> - * Copyright (c) 2000 Clifford Wolf <clifford@clifford.at> - * Copyright (c) 2000 Sam Mosel <sam.mosel@computer.org> - * Copyright (c) 2000 James E. Blair <corvus@gnu.org> - * Copyright (c) 2000 Daniel Egger <egger@suse.de> - * Copyright (c) 2001 Frederic Lepied <flepied@mandrakesoft.com> - * Copyright (c) 2004 Panagiotis Issaris <panagiotis.issaris@mech.kuleuven.ac.be> - * Copyright (c) 2002-2006 Ping Cheng <pingc@wacom.com> - * - * ChangeLog: - * v0.1 (vp) - Initial release - * v0.2 (aba) - Support for all buttons / combinations - * v0.3 (vp) - Support for Intuos added - * v0.4 (sm) - Support for more Intuos models, menustrip - * relative mode, proximity. - * v0.5 (vp) - Big cleanup, nifty features removed, - * they belong in userspace - * v1.8 (vp) - Submit URB only when operating, moved to CVS, - * use input_report_key instead of report_btn and - * other cleanups - * v1.11 (vp) - Add URB ->dev setting for new kernels - * v1.11 (jb) - Add support for the 4D Mouse & Lens - * v1.12 (de) - Add support for two more inking pen IDs - * v1.14 (vp) - Use new USB device id probing scheme. - * Fix Wacom Graphire mouse wheel - * v1.18 (vp) - Fix mouse wheel direction - * Make mouse relative - * v1.20 (fl) - Report tool id for Intuos devices - * - Multi tools support - * - Corrected Intuos protocol decoding (airbrush, 4D mouse, lens cursor...) - * - Add PL models support - * - Fix Wacom Graphire mouse wheel again - * v1.21 (vp) - Removed protocol descriptions - * - Added MISC_SERIAL for tool serial numbers - * (gb) - Identify version on module load. - * v1.21.1 (fl) - added Graphire2 support - * v1.21.2 (fl) - added Intuos2 support - * - added all the PL ids - * v1.21.3 (fl) - added another eraser id from Neil Okamoto - * - added smooth filter for Graphire from Peri Hankey - * - added PenPartner support from Olaf van Es - * - new tool ids from Ole Martin Bjoerndalen - * v1.29 (pc) - Add support for more tablets - * - Fix pressure reporting - * v1.30 (vp) - Merge 2.4 and 2.5 drivers - * - Since 2.5 now has input_sync(), remove MSC_SERIAL abuse - * - Cleanups here and there - * v1.30.1 (pi) - Added Graphire3 support - * v1.40 (pc) - Add support for several new devices, fix eraser reporting, ... - * v1.43 (pc) - Added support for Cintiq 21UX - * - Fixed a Graphire bug - * - Merged wacom_intuos3_irq into wacom_intuos_irq - * v1.44 (pc) - Added support for Graphire4, Cintiq 710, Intuos3 6x11, etc. - * - Report Device IDs - * v1.45 (pc) - Added support for DTF 521, Intuos3 12x12 and 12x19 - * - Minor data report fix - */ - -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/usb/input.h> -#include <asm/unaligned.h> - -/* - * Version Information - */ -#define DRIVER_VERSION "v1.45" -#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>" -#define DRIVER_DESC "USB Wacom Graphire and Wacom Intuos tablet driver" -#define DRIVER_LICENSE "GPL" - -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE(DRIVER_LICENSE); - -#define USB_VENDOR_ID_WACOM 0x056a -#define STYLUS_DEVICE_ID 0x02 -#define CURSOR_DEVICE_ID 0x06 -#define ERASER_DEVICE_ID 0x0A - -enum { - PENPARTNER = 0, - GRAPHIRE, - WACOM_G4, - PL, - INTUOS, - INTUOS3, - INTUOS312, - INTUOS319, - CINTIQ, - MAX_TYPE -}; - -struct wacom_features { - char *name; - int pktlen; - int x_max; - int y_max; - int pressure_max; - int distance_max; - int type; - usb_complete_t irq; -}; - -struct wacom { - signed char *data; - dma_addr_t data_dma; - struct input_dev *dev; - struct usb_device *usbdev; - struct urb *irq; - struct wacom_features *features; - int tool[2]; - int id[2]; - __u32 serial[2]; - char phys[32]; -}; - -#define USB_REQ_GET_REPORT 0x01 -#define USB_REQ_SET_REPORT 0x09 - -static int usb_get_report(struct usb_interface *intf, unsigned char type, - unsigned char id, void *buf, int size) -{ - return usb_control_msg(interface_to_usbdev(intf), - usb_rcvctrlpipe(interface_to_usbdev(intf), 0), - USB_REQ_GET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE, - (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber, - buf, size, 100); -} - -static int usb_set_report(struct usb_interface *intf, unsigned char type, - unsigned char id, void *buf, int size) -{ - return usb_control_msg(interface_to_usbdev(intf), - usb_sndctrlpipe(interface_to_usbdev(intf), 0), - USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE, - (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber, - buf, size, 1000); -} - -static void wacom_pl_irq(struct urb *urb, struct pt_regs *regs) -{ - struct wacom *wacom = urb->context; - unsigned char *data = wacom->data; - struct input_dev *dev = wacom->dev; - int prox, pressure, id; - int retval; - - switch (urb->status) { - case 0: - /* success */ - break; - case -ECONNRESET: - case -ENOENT: - case -ESHUTDOWN: - /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); - return; - default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); - goto exit; - } - - if (data[0] != 2) { - dbg("wacom_pl_irq: received unknown report #%d", data[0]); - goto exit; - } - - prox = data[1] & 0x40; - - input_regs(dev, regs); - - id = ERASER_DEVICE_ID; - if (prox) { - - pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1)); - if (wacom->features->pressure_max > 255) - pressure = (pressure << 1) | ((data[4] >> 6) & 1); - pressure += (wacom->features->pressure_max + 1) / 2; - - /* - * if going from out of proximity into proximity select between the eraser - * and the pen based on the state of the stylus2 button, choose eraser if - * pressed else choose pen. if not a proximity change from out to in, send - * an out of proximity for previous tool then a in for new tool. - */ - if (!wacom->tool[0]) { - /* Eraser bit set for DTF */ - if (data[1] & 0x10) - wacom->tool[1] = BTN_TOOL_RUBBER; - else - /* Going into proximity select tool */ - wacom->tool[1] = (data[4] & 0x20) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN; - } else { - /* was entered with stylus2 pressed */ - if (wacom->tool[1] == BTN_TOOL_RUBBER && !(data[4] & 0x20)) { - /* report out proximity for previous tool */ - input_report_key(dev, wacom->tool[1], 0); - input_sync(dev); - wacom->tool[1] = BTN_TOOL_PEN; - goto exit; - } - } - if (wacom->tool[1] != BTN_TOOL_RUBBER) { - /* Unknown tool selected default to pen tool */ - wacom->tool[1] = BTN_TOOL_PEN; - id = STYLUS_DEVICE_ID; - } - input_report_key(dev, wacom->tool[1], prox); /* report in proximity for tool */ - input_report_abs(dev, ABS_MISC, id); /* report tool id */ - input_report_abs(dev, ABS_X, data[3] | (data[2] << 7) | ((data[1] & 0x03) << 14)); - input_report_abs(dev, ABS_Y, data[6] | (data[5] << 7) | ((data[4] & 0x03) << 14)); - input_report_abs(dev, ABS_PRESSURE, pressure); - - input_report_key(dev, BTN_TOUCH, data[4] & 0x08); - input_report_key(dev, BTN_STYLUS, data[4] & 0x10); - /* Only allow the stylus2 button to be reported for the pen tool. */ - input_report_key(dev, BTN_STYLUS2, (wacom->tool[1] == BTN_TOOL_PEN) && (data[4] & 0x20)); - } else { - /* report proximity-out of a (valid) tool */ - if (wacom->tool[1] != BTN_TOOL_RUBBER) { - /* Unknown tool selected default to pen tool */ - wacom->tool[1] = BTN_TOOL_PEN; - } - input_report_key(dev, wacom->tool[1], prox); - } - - wacom->tool[0] = prox; /* Save proximity state */ - input_sync(dev); - - exit: - retval = usb_submit_urb (urb, GFP_ATOMIC); - if (retval) - err ("%s - usb_submit_urb failed with result %d", - __FUNCTION__, retval); -} - -static void wacom_ptu_irq(struct urb *urb, struct pt_regs *regs) -{ - struct wacom *wacom = urb->context; - unsigned char *data = wacom->data; - struct input_dev *dev = wacom->dev; - int retval, id; - - switch (urb->status) { - case 0: - /* success */ - break; - case -ECONNRESET: - case -ENOENT: - case -ESHUTDOWN: - /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); - return; - default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); - goto exit; - } - - if (data[0] != 2) { - printk(KERN_INFO "wacom_ptu_irq: received unknown report #%d\n", data[0]); - goto exit; - } - - input_regs(dev, regs); - if (data[1] & 0x04) { - input_report_key(dev, BTN_TOOL_RUBBER, data[1] & 0x20); - input_report_key(dev, BTN_TOUCH, data[1] & 0x08); - id = ERASER_DEVICE_ID; - } else { - input_report_key(dev, BTN_TOOL_PEN, data[1] & 0x20); - input_report_key(dev, BTN_TOUCH, data[1] & 0x01); - id = STYLUS_DEVICE_ID; - } - input_report_abs(dev, ABS_MISC, id); /* report tool id */ - input_report_abs(dev, ABS_X, le16_to_cpu(*(__le16 *) &data[2])); - input_report_abs(dev, ABS_Y, le16_to_cpu(*(__le16 *) &data[4])); - input_report_abs(dev, ABS_PRESSURE, le16_to_cpu(*(__le16 *) &data[6])); - input_report_key(dev, BTN_STYLUS, data[1] & 0x02); - input_report_key(dev, BTN_STYLUS2, data[1] & 0x10); - - input_sync(dev); - - exit: - retval = usb_submit_urb (urb, GFP_ATOMIC); - if (retval) - err ("%s - usb_submit_urb failed with result %d", - __FUNCTION__, retval); -} - -static void wacom_penpartner_irq(struct urb *urb, struct pt_regs *regs) -{ - struct wacom *wacom = urb->context; - unsigned char *data = wacom->data; - struct input_dev *dev = wacom->dev; - int retval; - - switch (urb->status) { - case 0: - /* success */ - break; - case -ECONNRESET: - case -ENOENT: - case -ESHUTDOWN: - /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); - return; - default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); - goto exit; - } - - if (data[0] != 2) { - printk(KERN_INFO "wacom_penpartner_irq: received unknown report #%d\n", data[0]); - goto exit; - } - - input_regs(dev, regs); - input_report_key(dev, BTN_TOOL_PEN, 1); - input_report_abs(dev, ABS_MISC, STYLUS_DEVICE_ID); /* report tool id */ - input_report_abs(dev, ABS_X, le16_to_cpu(*(__le16 *) &data[1])); - input_report_abs(dev, ABS_Y, le16_to_cpu(*(__le16 *) &data[3])); - input_report_abs(dev, ABS_PRESSURE, (signed char)data[6] + 127); - input_report_key(dev, BTN_TOUCH, ((signed char)data[6] > -80) && !(data[5] & 0x20)); - input_report_key(dev, BTN_STYLUS, (data[5] & 0x40)); - input_sync(dev); - - exit: - retval = usb_submit_urb (urb, GFP_ATOMIC); - if (retval) - err ("%s - usb_submit_urb failed with result %d", - __FUNCTION__, retval); -} - -static void wacom_graphire_irq(struct urb *urb, struct pt_regs *regs) -{ - struct wacom *wacom = urb->context; - unsigned char *data = wacom->data; - struct input_dev *dev = wacom->dev; - int x, y, id, rw; - int retval; - - switch (urb->status) { - case 0: - /* success */ - break; - case -ECONNRESET: - case -ENOENT: - case -ESHUTDOWN: - /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); - return; - default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); - goto exit; - } - - if (data[0] == 99) return; /* for Volito tablets */ - - if (data[0] != 2) { - dbg("wacom_graphire_irq: received unknown report #%d", data[0]); - goto exit; - } - - input_regs(dev, regs); - - id = STYLUS_DEVICE_ID; - if (data[1] & 0x10) { /* in prox */ - - switch ((data[1] >> 5) & 3) { - - case 0: /* Pen */ - wacom->tool[0] = BTN_TOOL_PEN; - break; - - case 1: /* Rubber */ - wacom->tool[0] = BTN_TOOL_RUBBER; - id = ERASER_DEVICE_ID; - break; - - case 2: /* Mouse with wheel */ - input_report_key(dev, BTN_MIDDLE, data[1] & 0x04); - if (wacom->features->type == WACOM_G4) { - rw = data[7] & 0x04 ? (data[7] & 0x03)-4 : (data[7] & 0x03); - input_report_rel(dev, REL_WHEEL, -rw); - } else - input_report_rel(dev, REL_WHEEL, -(signed char) data[6]); - /* fall through */ - - case 3: /* Mouse without wheel */ - wacom->tool[0] = BTN_TOOL_MOUSE; - id = CURSOR_DEVICE_ID; - input_report_key(dev, BTN_LEFT, data[1] & 0x01); - input_report_key(dev, BTN_RIGHT, data[1] & 0x02); - if (wacom->features->type == WACOM_G4) - input_report_abs(dev, ABS_DISTANCE, data[6]); - else - input_report_abs(dev, ABS_DISTANCE, data[7]); - break; - } - } - - if (data[1] & 0x90) { - x = le16_to_cpu(*(__le16 *) &data[2]); - y = le16_to_cpu(*(__le16 *) &data[4]); - input_report_abs(dev, ABS_X, x); - input_report_abs(dev, ABS_Y, y); - if (wacom->tool[0] != BTN_TOOL_MOUSE) { - input_report_abs(dev, ABS_PRESSURE, data[6] | ((data[7] & 0x01) << 8)); - input_report_key(dev, BTN_TOUCH, data[1] & 0x01); - input_report_key(dev, BTN_STYLUS, data[1] & 0x02); - input_report_key(dev, BTN_STYLUS2, data[1] & 0x04); - } - } - - if (data[1] & 0x10) - input_report_abs(dev, ABS_MISC, id); /* report tool id */ - else - input_report_abs(dev, ABS_MISC, 0); /* reset tool id */ - input_report_key(dev, wacom->tool[0], data[1] & 0x10); - input_sync(dev); - - /* send pad data */ - if (wacom->features->type == WACOM_G4) { - if ((wacom->serial[1] & 0xc0) != (data[7] & 0xf8)) { - wacom->id[1] = 1; - wacom->serial[1] = (data[7] & 0xf8); - input_report_key(dev, BTN_0, (data[7] & 0x40)); - input_report_key(dev, BTN_4, (data[7] & 0x80)); - rw = ((data[7] & 0x18) >> 3) - ((data[7] & 0x20) >> 3); - input_report_rel(dev, REL_WHEEL, rw); - input_report_key(dev, BTN_TOOL_FINGER, 0xf0); - input_event(dev, EV_MSC, MSC_SERIAL, 0xf0); - } else if (wacom->id[1]) { - wacom->id[1] = 0; - input_report_key(dev, BTN_TOOL_FINGER, 0); - input_event(dev, EV_MSC, MSC_SERIAL, 0xf0); - } - input_sync(dev); - } - exit: - retval = usb_submit_urb (urb, GFP_ATOMIC); - if (retval) - err ("%s - usb_submit_urb failed with result %d", - __FUNCTION__, retval); -} - -static int wacom_intuos_inout(struct urb *urb) -{ - struct wacom *wacom = urb->context; - unsigned char *data = wacom->data; - struct input_dev *dev = wacom->dev; - int idx; - - /* tool number */ - idx = data[1] & 0x01; - - /* Enter report */ - if ((data[1] & 0xfc) == 0xc0) { - /* serial number of the tool */ - wacom->serial[idx] = ((data[3] & 0x0f) << 28) + - (data[4] << 20) + (data[5] << 12) + - (data[6] << 4) + (data[7] >> 4); - - wacom->id[idx] = (data[2] << 4) | (data[3] >> 4); - switch (wacom->id[idx]) { - case 0x812: /* Inking pen */ - case 0x801: /* Intuos3 Inking pen */ - case 0x012: - wacom->tool[idx] = BTN_TOOL_PENCIL; - break; - case 0x822: /* Pen */ - case 0x842: - case 0x852: - case 0x823: /* Intuos3 Grip Pen */ - case 0x813: /* Intuos3 Classic Pen */ - case 0x885: /* Intuos3 Marker Pen */ - case 0x022: - wacom->tool[idx] = BTN_TOOL_PEN; - break; - case 0x832: /* Stroke pen */ - case 0x032: - wacom->tool[idx] = BTN_TOOL_BRUSH; - break; - case 0x007: /* Mouse 4D and 2D */ - case 0x09c: - case 0x094: - case 0x017: /* Intuos3 2D Mouse */ - wacom->tool[idx] = BTN_TOOL_MOUSE; - break; - case 0x096: /* Lens cursor */ - case 0x097: /* Intuos3 Lens cursor */ - wacom->tool[idx] = BTN_TOOL_LENS; - break; - case 0x82a: /* Eraser */ - case 0x85a: - case 0x91a: - case 0xd1a: - case 0x0fa: - case 0x82b: /* Intuos3 Grip Pen Eraser */ - case 0x81b: /* Intuos3 Classic Pen Eraser */ - case 0x91b: /* Intuos3 Airbrush Eraser */ - wacom->tool[idx] = BTN_TOOL_RUBBER; - break; - case 0xd12: - case 0x912: - case 0x112: - case 0x913: /* Intuos3 Airbrush */ - wacom->tool[idx] = BTN_TOOL_AIRBRUSH; - break; - default: /* Unknown tool */ - wacom->tool[idx] = BTN_TOOL_PEN; - } - if(!((wacom->tool[idx] == BTN_TOOL_LENS) && - ((wacom->features->type == INTUOS312) - || (wacom->features->type == INTUOS319)))) { - input_report_abs(dev, ABS_MISC, wacom->id[idx]); /* report tool id */ - input_report_key(dev, wacom->tool[idx], 1); - input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]); - input_sync(dev); - } - return 1; - } - - /* Exit report */ - if ((data[1] & 0xfe) == 0x80) { - input_report_key(dev, wacom->tool[idx], 0); - input_report_abs(dev, ABS_MISC, 0); /* reset tool id */ - input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]); - input_sync(dev); - return 1; - } - - if((wacom->tool[idx] == BTN_TOOL_LENS) && ((wacom->features->type == INTUOS312) - || (wacom->features->type == INTUOS319))) - return 1; - else - return 0; -} - -static void wacom_intuos_general(struct urb *urb) -{ - struct wacom *wacom = urb->context; - unsigned char *data = wacom->data; - struct input_dev *dev = wacom->dev; - unsigned int t; - - /* general pen packet */ - if ((data[1] & 0xb8) == 0xa0) { - t = (data[6] << 2) | ((data[7] >> 6) & 3); - input_report_abs(dev, ABS_PRESSURE, t); - input_report_abs(dev, ABS_TILT_X, - ((data[7] << 1) & 0x7e) | (data[8] >> 7)); - input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f); - input_report_key(dev, BTN_STYLUS, data[1] & 2); - input_report_key(dev, BTN_STYLUS2, data[1] & 4); - input_report_key(dev, BTN_TOUCH, t > 10); - } - - /* airbrush second packet */ - if ((data[1] & 0xbc) == 0xb4) { - input_report_abs(dev, ABS_WHEEL, - (data[6] << 2) | ((data[7] >> 6) & 3)); - input_report_abs(dev, ABS_TILT_X, - ((data[7] << 1) & 0x7e) | (data[8] >> 7)); - input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f); - } - return; -} - -static void wacom_intuos_irq(struct urb *urb, struct pt_regs *regs) -{ - struct wacom *wacom = urb->context; - unsigned char *data = wacom->data; - struct input_dev *dev = wacom->dev; - unsigned int t; - int idx; - int retval; - - switch (urb->status) { - case 0: - /* success */ - break; - case -ECONNRESET: - case -ENOENT: - case -ESHUTDOWN: - /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); - return; - default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); - goto exit; - } - - if (data[0] != 2 && data[0] != 5 && data[0] != 6 && data[0] != 12) { - dbg("wacom_intuos_irq: received unknown report #%d", data[0]); - goto exit; - } - - input_regs(dev, regs); - - /* tool number */ - idx = data[1] & 0x01; - - /* pad packets. Works as a second tool and is always in prox */ - if (data[0] == 12) { - /* initiate the pad as a device */ - if (wacom->tool[1] != BTN_TOOL_FINGER) - wacom->tool[1] = BTN_TOOL_FINGER; - - input_report_key(dev, BTN_0, (data[5] & 0x01)); - input_report_key(dev, BTN_1, (data[5] & 0x02)); - input_report_key(dev, BTN_2, (data[5] & 0x04)); - input_report_key(dev, BTN_3, (data[5] & 0x08)); - input_report_key(dev, BTN_4, (data[6] & 0x01)); - input_report_key(dev, BTN_5, (data[6] & 0x02)); - input_report_key(dev, BTN_6, (data[6] & 0x04)); - input_report_key(dev, BTN_7, (data[6] & 0x08)); - input_report_abs(dev, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]); - input_report_abs(dev, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]); - - if((data[5] & 0x0f) | (data[6] & 0x0f) | (data[1] & 0x1f) | data[2]) - input_report_key(dev, wacom->tool[1], 1); - else - input_report_key(dev, wacom->tool[1], 0); - input_event(dev, EV_MSC, MSC_SERIAL, 0xffffffff); - input_sync(dev); - goto exit; - } - - /* process in/out prox events */ - if (wacom_intuos_inout(urb)) - goto exit; - - /* Cintiq doesn't send data when RDY bit isn't set */ - if ((wacom->features->type == CINTIQ) && !(data[1] & 0x40)) - goto exit; - - if (wacom->features->type >= INTUOS3) { - input_report_abs(dev, ABS_X, (data[2] << 9) | (data[3] << 1) | ((data[9] >> 1) & 1)); - input_report_abs(dev, ABS_Y, (data[4] << 9) | (data[5] << 1) | (data[9] & 1)); - input_report_abs(dev, ABS_DISTANCE, ((data[9] >> 2) & 0x3f)); - } else { - input_report_abs(dev, ABS_X, be16_to_cpu(*(__be16 *) &data[2])); - input_report_abs(dev, ABS_Y, be16_to_cpu(*(__be16 *) &data[4])); - input_report_abs(dev, ABS_DISTANCE, ((data[9] >> 3) & 0x1f)); - } - - /* process general packets */ - wacom_intuos_general(urb); - - /* 4D mouse, 2D mouse, marker pen rotation, or Lens cursor packets */ - if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0) { - - if (data[1] & 0x02) { - /* Rotation packet */ - if (wacom->features->type >= INTUOS3) { - /* I3 marker pen rotation reported as wheel - * due to valuator limitation - */ - t = (data[6] << 3) | ((data[7] >> 5) & 7); - t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) : - ((t-1) / 2 + 450)) : (450 - t / 2) ; - input_report_abs(dev, ABS_WHEEL, t); - } else { - /* 4D mouse rotation packet */ - t = (data[6] << 3) | ((data[7] >> 5) & 7); - input_report_abs(dev, ABS_RZ, (data[7] & 0x20) ? - ((t - 1) / 2) : -t / 2); - } - - } else if (!(data[1] & 0x10) && wacom->features->type < INTUOS3) { - /* 4D mouse packet */ - input_report_key(dev, BTN_LEFT, data[8] & 0x01); - input_report_key(dev, BTN_MIDDLE, data[8] & 0x02); - input_report_key(dev, BTN_RIGHT, data[8] & 0x04); - - input_report_key(dev, BTN_SIDE, data[8] & 0x20); - input_report_key(dev, BTN_EXTRA, data[8] & 0x10); - t = (data[6] << 2) | ((data[7] >> 6) & 3); - input_report_abs(dev, ABS_THROTTLE, (data[8] & 0x08) ? -t : t); - - } else if (wacom->tool[idx] == BTN_TOOL_MOUSE) { - /* 2D mouse packet */ - input_report_key(dev, BTN_LEFT, data[8] & 0x04); - input_report_key(dev, BTN_MIDDLE, data[8] & 0x08); - input_report_key(dev, BTN_RIGHT, data[8] & 0x10); - input_report_rel(dev, REL_WHEEL, (data[8] & 0x01) - - ((data[8] & 0x02) >> 1)); - - /* I3 2D mouse side buttons */ - if (wacom->features->type == INTUOS3) { - input_report_key(dev, BTN_SIDE, data[8] & 0x40); - input_report_key(dev, BTN_EXTRA, data[8] & 0x20); - } - - } else if (wacom->features->type < INTUOS3) { - /* Lens cursor packets */ - input_report_key(dev, BTN_LEFT, data[8] & 0x01); - input_report_key(dev, BTN_MIDDLE, data[8] & 0x02); - input_report_key(dev, BTN_RIGHT, data[8] & 0x04); - input_report_key(dev, BTN_SIDE, data[8] & 0x10); - input_report_key(dev, BTN_EXTRA, data[8] & 0x08); - } - } - - input_report_abs(dev, ABS_MISC, wacom->id[idx]); /* report tool id */ - input_report_key(dev, wacom->tool[idx], 1); - input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]); - input_sync(dev); - -exit: - retval = usb_submit_urb (urb, GFP_ATOMIC); - if (retval) - err ("%s - usb_submit_urb failed with result %d", - __FUNCTION__, retval); -} - -static struct wacom_features wacom_features[] = { - { "Wacom Penpartner", 7, 5040, 3780, 255, 32, PENPARTNER, wacom_penpartner_irq }, - { "Wacom Graphire", 8, 10206, 7422, 511, 32, GRAPHIRE, wacom_graphire_irq }, - { "Wacom Graphire2 4x5", 8, 10206, 7422, 511, 32, GRAPHIRE, wacom_graphire_irq }, - { "Wacom Graphire2 5x7", 8, 13918, 10206, 511, 32, GRAPHIRE, wacom_graphire_irq }, - { "Wacom Graphire3", 8, 10208, 7424, 511, 32, GRAPHIRE, wacom_graphire_irq }, - { "Wacom Graphire3 6x8", 8, 16704, 12064, 511, 32, GRAPHIRE, wacom_graphire_irq }, - { "Wacom Graphire4 4x5", 8, 10208, 7424, 511, 32, WACOM_G4, wacom_graphire_irq }, - { "Wacom Graphire4 6x8", 8, 16704, 12064, 511, 32, WACOM_G4, wacom_graphire_irq }, - { "Wacom Volito", 8, 5104, 3712, 511, 32, GRAPHIRE, wacom_graphire_irq }, - { "Wacom PenStation2", 8, 3250, 2320, 255, 32, GRAPHIRE, wacom_graphire_irq }, - { "Wacom Volito2 4x5", 8, 5104, 3712, 511, 32, GRAPHIRE, wacom_graphire_irq }, - { "Wacom Volito2 2x3", 8, 3248, 2320, 511, 32, GRAPHIRE, wacom_graphire_irq }, - { "Wacom PenPartner2", 8, 3250, 2320, 255, 32, GRAPHIRE, wacom_graphire_irq }, - { "Wacom Intuos 4x5", 10, 12700, 10600, 1023, 15, INTUOS, wacom_intuos_irq }, - { "Wacom Intuos 6x8", 10, 20320, 16240, 1023, 15, INTUOS, wacom_intuos_irq }, - { "Wacom Intuos 9x12", 10, 30480, 24060, 1023, 15, INTUOS, wacom_intuos_irq }, - { "Wacom Intuos 12x12", 10, 30480, 31680, 1023, 15, INTUOS, wacom_intuos_irq }, - { "Wacom Intuos 12x18", 10, 45720, 31680, 1023, 15, INTUOS, wacom_intuos_irq }, - { "Wacom PL400", 8, 5408, 4056, 255, 32, PL, wacom_pl_irq }, - { "Wacom PL500", 8, 6144, 4608, 255, 32, PL, wacom_pl_irq }, - { "Wacom PL600", 8, 6126, 4604, 255, 32, PL, wacom_pl_irq }, - { "Wacom PL600SX", 8, 6260, 5016, 255, 32, PL, wacom_pl_irq }, - { "Wacom PL550", 8, 6144, 4608, 511, 32, PL, wacom_pl_irq }, - { "Wacom PL800", 8, 7220, 5780, 511, 32, PL, wacom_pl_irq }, - { "Wacom PL700", 8, 6758, 5406, 511, 32, PL, wacom_pl_irq }, - { "Wacom PL510", 8, 6282, 4762, 511, 32, PL, wacom_pl_irq }, - { "Wacom DTU710", 8, 34080, 27660, 511, 32, PL, wacom_pl_irq }, - { "Wacom DTF521", 8, 6282, 4762, 511, 32, PL, wacom_pl_irq }, - { "Wacom DTF720", 8, 6858, 5506, 511, 32, PL, wacom_pl_irq }, - { "Wacom Cintiq Partner",8, 20480, 15360, 511, 32, PL, wacom_ptu_irq }, - { "Wacom Intuos2 4x5", 10, 12700, 10600, 1023, 15, INTUOS, wacom_intuos_irq }, - { "Wacom Intuos2 6x8", 10, 20320, 16240, 1023, 15, INTUOS, wacom_intuos_irq }, - { "Wacom Intuos2 9x12", 10, 30480, 24060, 1023, 15, INTUOS, wacom_intuos_irq }, - { "Wacom Intuos2 12x12", 10, 30480, 31680, 1023, 15, INTUOS, wacom_intuos_irq }, - { "Wacom Intuos2 12x18", 10, 45720, 31680, 1023, 15, INTUOS, wacom_intuos_irq }, - { "Wacom Intuos3 4x5", 10, 25400, 20320, 1023, 15, INTUOS3, wacom_intuos_irq }, - { "Wacom Intuos3 6x8", 10, 40640, 30480, 1023, 15, INTUOS3, wacom_intuos_irq }, - { "Wacom Intuos3 9x12", 10, 60960, 45720, 1023, 15, INTUOS3, wacom_intuos_irq }, - { "Wacom Intuos3 12x12", 10, 60960, 60960, 1023, 15, INTUOS312, wacom_intuos_irq }, - { "Wacom Intuos3 12x19", 10, 97536, 60960, 1023, 15, INTUOS319, wacom_intuos_irq }, - { "Wacom Intuos3 6x11", 10, 54204, 31750, 1023, 15, INTUOS3, wacom_intuos_irq }, - { "Wacom Cintiq 21UX", 10, 87200, 65600, 1023, 15, CINTIQ, wacom_intuos_irq }, - { "Wacom Intuos2 6x8", 10, 20320, 16240, 1023, 15, INTUOS, wacom_intuos_irq }, - { } -}; - -static struct usb_device_id wacom_ids[] = { - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x00) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x10) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x11) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x12) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x13) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x14) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x15) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x16) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x60) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x61) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x62) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x63) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x64) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x20) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x21) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x22) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x23) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x24) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x30) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x31) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x32) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x33) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x34) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x35) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x37) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x38) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x39) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC0) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC3) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x03) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x41) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x42) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x43) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x44) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x45) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB0) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB1) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB2) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB3) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB4) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB5) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x3F) }, - { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x47) }, - { } -}; - -MODULE_DEVICE_TABLE(usb, wacom_ids); - -static int wacom_open(struct input_dev *dev) -{ - struct wacom *wacom = dev->private; - - wacom->irq->dev = wacom->usbdev; - if (usb_submit_urb(wacom->irq, GFP_KERNEL)) - return -EIO; - - return 0; -} - -static void wacom_close(struct input_dev *dev) -{ - struct wacom *wacom = dev->private; - - usb_kill_urb(wacom->irq); -} - -static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) -{ - struct usb_device *dev = interface_to_usbdev(intf); - struct usb_endpoint_descriptor *endpoint; - struct wacom *wacom; - struct input_dev *input_dev; - char rep_data[2], limit = 0; - - wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!wacom || !input_dev) - goto fail1; - - wacom->data = usb_buffer_alloc(dev, 10, GFP_KERNEL, &wacom->data_dma); - if (!wacom->data) - goto fail1; - - wacom->irq = usb_alloc_urb(0, GFP_KERNEL); - if (!wacom->irq) - goto fail2; - - wacom->usbdev = dev; - wacom->dev = input_dev; - usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); - strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); - - wacom->features = wacom_features + (id - wacom_ids); - if (wacom->features->pktlen > 10) - BUG(); - - input_dev->name = wacom->features->name; - usb_to_input_id(dev, &input_dev->id); - - input_dev->cdev.dev = &intf->dev; - input_dev->private = wacom; - input_dev->open = wacom_open; - input_dev->close = wacom_close; - - input_dev->evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS); - input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) | BIT(BTN_TOUCH) | BIT(BTN_STYLUS); - input_set_abs_params(input_dev, ABS_X, 0, wacom->features->x_max, 4, 0); - input_set_abs_params(input_dev, ABS_Y, 0, wacom->features->y_max, 4, 0); - input_set_abs_params(input_dev, ABS_PRESSURE, 0, wacom->features->pressure_max, 0, 0); - input_dev->absbit[LONG(ABS_MISC)] |= BIT(ABS_MISC); - - switch (wacom->features->type) { - case WACOM_G4: - input_dev->evbit[0] |= BIT(EV_MSC); - input_dev->mscbit[0] |= BIT(MSC_SERIAL); - input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_FINGER); - input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_0) | BIT(BTN_1) | BIT(BTN_2) | BIT(BTN_3) | BIT(BTN_4) | BIT(BTN_5) | BIT(BTN_6) | BIT(BTN_7); - /* fall through */ - - case GRAPHIRE: - input_dev->evbit[0] |= BIT(EV_REL); - input_dev->relbit[0] |= BIT(REL_WHEEL); - input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE); - input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_STYLUS2); - input_set_abs_params(input_dev, ABS_DISTANCE, 0, wacom->features->distance_max, 0, 0); - break; - - case INTUOS3: - case INTUOS312: - case INTUOS319: - case CINTIQ: - input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_FINGER); - input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_0) | BIT(BTN_1) | BIT(BTN_2) | BIT(BTN_3) | BIT(BTN_4) | BIT(BTN_5) | BIT(BTN_6) | BIT(BTN_7); - input_set_abs_params(input_dev, ABS_RX, 0, 4097, 0, 0); - input_set_abs_params(input_dev, ABS_RY, 0, 4097, 0, 0); - /* fall through */ - - case INTUOS: - input_dev->evbit[0] |= BIT(EV_MSC) | BIT(EV_REL); - input_dev->mscbit[0] |= BIT(MSC_SERIAL); - input_dev->relbit[0] |= BIT(REL_WHEEL); - input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE) | BIT(BTN_SIDE) | BIT(BTN_EXTRA); - input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_TOOL_BRUSH) - | BIT(BTN_TOOL_PENCIL) | BIT(BTN_TOOL_AIRBRUSH) | BIT(BTN_TOOL_LENS) | BIT(BTN_STYLUS2); - input_set_abs_params(input_dev, ABS_DISTANCE, 0, wacom->features->distance_max, 0, 0); - input_set_abs_params(input_dev, ABS_WHEEL, 0, 1023, 0, 0); - input_set_abs_params(input_dev, ABS_TILT_X, 0, 127, 0, 0); - input_set_abs_params(input_dev, ABS_TILT_Y, 0, 127, 0, 0); - input_set_abs_params(input_dev, ABS_RZ, -900, 899, 0, 0); - input_set_abs_params(input_dev, ABS_THROTTLE, -1023, 1023, 0, 0); - break; - - case PL: - input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_STYLUS2) | BIT(BTN_TOOL_RUBBER); - break; - } - - endpoint = &intf->cur_altsetting->endpoint[0].desc; - - if (wacom->features->pktlen > 10) - BUG(); - - usb_fill_int_urb(wacom->irq, dev, - usb_rcvintpipe(dev, endpoint->bEndpointAddress), - wacom->data, wacom->features->pktlen, - wacom->features->irq, wacom, endpoint->bInterval); - wacom->irq->transfer_dma = wacom->data_dma; - wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; - - input_register_device(wacom->dev); - - /* Ask the tablet to report tablet data. Repeat until it succeeds */ - do { - rep_data[0] = 2; - rep_data[1] = 2; - usb_set_report(intf, 3, 2, rep_data, 2); - usb_get_report(intf, 3, 2, rep_data, 2); - } while (rep_data[1] != 2 && limit++ < 5); - - usb_set_intfdata(intf, wacom); - return 0; - -fail2: usb_buffer_free(dev, 10, wacom->data, wacom->data_dma); -fail1: input_free_device(input_dev); - kfree(wacom); - return -ENOMEM; -} - -static void wacom_disconnect(struct usb_interface *intf) -{ - struct wacom *wacom = usb_get_intfdata (intf); - - usb_set_intfdata(intf, NULL); - if (wacom) { - usb_kill_urb(wacom->irq); - input_unregister_device(wacom->dev); - usb_free_urb(wacom->irq); - usb_buffer_free(interface_to_usbdev(intf), 10, wacom->data, wacom->data_dma); - kfree(wacom); - } -} - -static struct usb_driver wacom_driver = { - .name = "wacom", - .probe = wacom_probe, - .disconnect = wacom_disconnect, - .id_table = wacom_ids, -}; - -static int __init wacom_init(void) -{ - int result = usb_register(&wacom_driver); - if (result == 0) - info(DRIVER_VERSION ":" DRIVER_DESC); - return result; -} - -static void __exit wacom_exit(void) -{ - usb_deregister(&wacom_driver); -} - -module_init(wacom_init); -module_exit(wacom_exit);
diff --git a/drivers/usb/input/wacom.h b/drivers/usb/input/wacom.h new file mode 100644 index 0000000..832737b --- /dev/null +++ b/drivers/usb/input/wacom.h
@@ -0,0 +1,132 @@ +/* + * drivers/usb/input/wacom.h + * + * USB Wacom Graphire and Wacom Intuos tablet support + * + * Copyright (c) 2000-2004 Vojtech Pavlik <vojtech@ucw.cz> + * Copyright (c) 2000 Andreas Bach Aaen <abach@stofanet.dk> + * Copyright (c) 2000 Clifford Wolf <clifford@clifford.at> + * Copyright (c) 2000 Sam Mosel <sam.mosel@computer.org> + * Copyright (c) 2000 James E. Blair <corvus@gnu.org> + * Copyright (c) 2000 Daniel Egger <egger@suse.de> + * Copyright (c) 2001 Frederic Lepied <flepied@mandrakesoft.com> + * Copyright (c) 2004 Panagiotis Issaris <panagiotis.issaris@mech.kuleuven.ac.be> + * Copyright (c) 2002-2006 Ping Cheng <pingc@wacom.com> + * + * ChangeLog: + * v0.1 (vp) - Initial release + * v0.2 (aba) - Support for all buttons / combinations + * v0.3 (vp) - Support for Intuos added + * v0.4 (sm) - Support for more Intuos models, menustrip + * relative mode, proximity. + * v0.5 (vp) - Big cleanup, nifty features removed, + * they belong in userspace + * v1.8 (vp) - Submit URB only when operating, moved to CVS, + * use input_report_key instead of report_btn and + * other cleanups + * v1.11 (vp) - Add URB ->dev setting for new kernels + * v1.11 (jb) - Add support for the 4D Mouse & Lens + * v1.12 (de) - Add support for two more inking pen IDs + * v1.14 (vp) - Use new USB device id probing scheme. + * Fix Wacom Graphire mouse wheel + * v1.18 (vp) - Fix mouse wheel direction + * Make mouse relative + * v1.20 (fl) - Report tool id for Intuos devices + * - Multi tools support + * - Corrected Intuos protocol decoding (airbrush, 4D mouse, lens cursor...) + * - Add PL models support + * - Fix Wacom Graphire mouse wheel again + * v1.21 (vp) - Removed protocol descriptions + * - Added MISC_SERIAL for tool serial numbers + * (gb) - Identify version on module load. + * v1.21.1 (fl) - added Graphire2 support + * v1.21.2 (fl) - added Intuos2 support + * - added all the PL ids + * v1.21.3 (fl) - added another eraser id from Neil Okamoto + * - added smooth filter for Graphire from Peri Hankey + * - added PenPartner support from Olaf van Es + * - new tool ids from Ole Martin Bjoerndalen + * v1.29 (pc) - Add support for more tablets + * - Fix pressure reporting + * v1.30 (vp) - Merge 2.4 and 2.5 drivers + * - Since 2.5 now has input_sync(), remove MSC_SERIAL abuse + * - Cleanups here and there + * v1.30.1 (pi) - Added Graphire3 support + * v1.40 (pc) - Add support for several new devices, fix eraser reporting, ... + * v1.43 (pc) - Added support for Cintiq 21UX + * - Fixed a Graphire bug + * - Merged wacom_intuos3_irq into wacom_intuos_irq + * v1.44 (pc) - Added support for Graphire4, Cintiq 710, Intuos3 6x11, etc. + * - Report Device IDs + * v1.45 (pc) - Added support for DTF 521, Intuos3 12x12 and 12x19 + * - Minor data report fix + * v1.46 (pc) - Split wacom.c into wacom_sys.c and wacom_wac.c, + * - where wacom_sys.c deals with system specific code, + * - and wacom_wac.c deals with Wacom specific code + */ + +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ +#ifndef WACOM_H +#define WACOM_H +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/usb/input.h> +#include <asm/unaligned.h> + +/* + * Version Information + */ +#define DRIVER_VERSION "v1.46" +#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>" +#define DRIVER_DESC "USB Wacom Graphire and Wacom Intuos tablet driver" +#define DRIVER_LICENSE "GPL" + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE(DRIVER_LICENSE); + +#define USB_VENDOR_ID_WACOM 0x056a + +struct wacom { + dma_addr_t data_dma; + struct input_dev *dev; + struct usb_device *usbdev; + struct urb *irq; + struct wacom_wac * wacom_wac; + char phys[32]; +}; + +struct wacom_combo { + struct wacom * wacom; + struct urb * urb; + struct pt_regs *regs; +}; + +extern int wacom_wac_irq(struct wacom_wac * wacom_wac, void * wcombo); +extern void wacom_sys_irq(struct urb *urb, struct pt_regs *regs); +extern void wacom_report_abs(void *wcombo, unsigned int abs_type, int abs_data); +extern void wacom_report_rel(void *wcombo, unsigned int rel_type, int rel_data); +extern void wacom_report_key(void *wcombo, unsigned int key_type, int key_data); +extern void wacom_input_event(void *wcombo, unsigned int type, unsigned int code, int value); +extern void wacom_input_regs(void *wcombo); +extern void wacom_input_sync(void *wcombo); +extern void wacom_init_input_dev(struct input_dev *input_dev, struct wacom_wac *wacom_wac); +extern void input_dev_g4(struct input_dev *input_dev, struct wacom_wac *wacom_wac); +extern void input_dev_g(struct input_dev *input_dev, struct wacom_wac *wacom_wac); +extern void input_dev_i3(struct input_dev *input_dev, struct wacom_wac *wacom_wac); +extern void input_dev_i(struct input_dev *input_dev, struct wacom_wac *wacom_wac); +extern void input_dev_pl(struct input_dev *input_dev, struct wacom_wac *wacom_wac); +extern void input_dev_pt(struct input_dev *input_dev, struct wacom_wac *wacom_wac); +extern __u16 wacom_le16_to_cpu(unsigned char *data); +extern __u16 wacom_be16_to_cpu(unsigned char *data); +extern struct wacom_features * get_wacom_feature(const struct usb_device_id *id); +extern const struct usb_device_id * get_device_table(void); + +#endif
diff --git a/drivers/usb/input/wacom_sys.c b/drivers/usb/input/wacom_sys.c new file mode 100644 index 0000000..7c3b52b --- /dev/null +++ b/drivers/usb/input/wacom_sys.c
@@ -0,0 +1,315 @@ +/* + * drivers/usb/input/wacom_sys.c + * + * USB Wacom Graphire and Wacom Intuos tablet support - system specific code + */ + +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include "wacom.h" +#include "wacom_wac.h" + +#define USB_REQ_GET_REPORT 0x01 +#define USB_REQ_SET_REPORT 0x09 + +static int usb_get_report(struct usb_interface *intf, unsigned char type, + unsigned char id, void *buf, int size) +{ + return usb_control_msg(interface_to_usbdev(intf), + usb_rcvctrlpipe(interface_to_usbdev(intf), 0), + USB_REQ_GET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE, + (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber, + buf, size, 100); +} + +static int usb_set_report(struct usb_interface *intf, unsigned char type, + unsigned char id, void *buf, int size) +{ + return usb_control_msg(interface_to_usbdev(intf), + usb_sndctrlpipe(interface_to_usbdev(intf), 0), + USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE, + (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber, + buf, size, 1000); +} + +static struct input_dev * get_input_dev(struct wacom_combo *wcombo) +{ + return wcombo->wacom->dev; +} + +void wacom_sys_irq(struct urb *urb, struct pt_regs *regs) +{ + struct wacom *wacom = urb->context; + struct wacom_combo wcombo; + int retval; + + switch (urb->status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* this urb is terminated, clean up */ + dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + return; + default: + dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); + goto exit; + } + + wcombo.wacom = wacom; + wcombo.urb = urb; + wcombo.regs = regs; + + if (wacom_wac_irq(wacom->wacom_wac, (void *)&wcombo)) + input_sync(get_input_dev(&wcombo)); + + exit: + retval = usb_submit_urb (urb, GFP_ATOMIC); + if (retval) + err ("%s - usb_submit_urb failed with result %d", + __FUNCTION__, retval); +} + +void wacom_report_key(void *wcombo, unsigned int key_type, int key_data) +{ + input_report_key(get_input_dev((struct wacom_combo *)wcombo), key_type, key_data); + return; +} + +void wacom_report_abs(void *wcombo, unsigned int abs_type, int abs_data) +{ + input_report_abs(get_input_dev((struct wacom_combo *)wcombo), abs_type, abs_data); + return; +} + +void wacom_report_rel(void *wcombo, unsigned int rel_type, int rel_data) +{ + input_report_rel(get_input_dev((struct wacom_combo *)wcombo), rel_type, rel_data); + return; +} + +void wacom_input_event(void *wcombo, unsigned int type, unsigned int code, int value) +{ + input_event(get_input_dev((struct wacom_combo *)wcombo), type, code, value); + return; +} + +__u16 wacom_be16_to_cpu(unsigned char *data) +{ + __u16 value; + value = be16_to_cpu(*(__be16 *) data); + return value; +} + +__u16 wacom_le16_to_cpu(unsigned char *data) +{ + __u16 value; + value = be16_to_cpu(*(__be16 *) data); + return value; +} + +void wacom_input_regs(void *wcombo) +{ + input_regs(get_input_dev((struct wacom_combo *)wcombo), ((struct wacom_combo *)wcombo)->regs); + return; +} + +void wacom_input_sync(void *wcombo) +{ + input_sync(get_input_dev((struct wacom_combo *)wcombo)); + return; +} + +static int wacom_open(struct input_dev *dev) +{ + struct wacom *wacom = dev->private; + + wacom->irq->dev = wacom->usbdev; + if (usb_submit_urb(wacom->irq, GFP_KERNEL)) + return -EIO; + + return 0; +} + +static void wacom_close(struct input_dev *dev) +{ + struct wacom *wacom = dev->private; + + usb_kill_urb(wacom->irq); +} + +void input_dev_g4(struct input_dev *input_dev, struct wacom_wac *wacom_wac) +{ + input_dev->evbit[0] |= BIT(EV_MSC); + input_dev->mscbit[0] |= BIT(MSC_SERIAL); + input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_FINGER); + input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_0) | BIT(BTN_1) | BIT(BTN_2) | BIT(BTN_3) | BIT(BTN_4) | BIT(BTN_5) | BIT(BTN_6) | BIT(BTN_7); +} + +void input_dev_g(struct input_dev *input_dev, struct wacom_wac *wacom_wac) +{ + input_dev->evbit[0] |= BIT(EV_REL); + input_dev->relbit[0] |= BIT(REL_WHEEL); + input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE); + input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_STYLUS2); + input_set_abs_params(input_dev, ABS_DISTANCE, 0, wacom_wac->features->distance_max, 0, 0); +} + +void input_dev_i3(struct input_dev *input_dev, struct wacom_wac *wacom_wac) +{ + input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_FINGER); + input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_0) | BIT(BTN_1) | BIT(BTN_2) | BIT(BTN_3) | BIT(BTN_4) | BIT(BTN_5) | BIT(BTN_6) | BIT(BTN_7); + input_set_abs_params(input_dev, ABS_RX, 0, 4097, 0, 0); + input_set_abs_params(input_dev, ABS_RY, 0, 4097, 0, 0); +} + +void input_dev_i(struct input_dev *input_dev, struct wacom_wac *wacom_wac) +{ + input_dev->evbit[0] |= BIT(EV_MSC) | BIT(EV_REL); + input_dev->mscbit[0] |= BIT(MSC_SERIAL); + input_dev->relbit[0] |= BIT(REL_WHEEL); + input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE) | BIT(BTN_SIDE) | BIT(BTN_EXTRA); + input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_TOOL_BRUSH) + | BIT(BTN_TOOL_PENCIL) | BIT(BTN_TOOL_AIRBRUSH) | BIT(BTN_TOOL_LENS) | BIT(BTN_STYLUS2); + input_set_abs_params(input_dev, ABS_DISTANCE, 0, wacom_wac->features->distance_max, 0, 0); + input_set_abs_params(input_dev, ABS_WHEEL, 0, 1023, 0, 0); + input_set_abs_params(input_dev, ABS_TILT_X, 0, 127, 0, 0); + input_set_abs_params(input_dev, ABS_TILT_Y, 0, 127, 0, 0); + input_set_abs_params(input_dev, ABS_RZ, -900, 899, 0, 0); + input_set_abs_params(input_dev, ABS_THROTTLE, -1023, 1023, 0, 0); +} + +void input_dev_pl(struct input_dev *input_dev, struct wacom_wac *wacom_wac) +{ + input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_STYLUS2) | BIT(BTN_TOOL_RUBBER); +} + +void input_dev_pt(struct input_dev *input_dev, struct wacom_wac *wacom_wac) +{ + input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER); +} + +static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id) +{ + struct usb_device *dev = interface_to_usbdev(intf); + struct usb_endpoint_descriptor *endpoint; + struct wacom *wacom; + struct wacom_wac *wacom_wac; + struct input_dev *input_dev; + char rep_data[2], limit = 0; + + wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); + wacom_wac = kzalloc(sizeof(struct wacom_wac), GFP_KERNEL); + input_dev = input_allocate_device(); + if (!wacom || !input_dev || !wacom_wac) + goto fail1; + + wacom_wac->data = usb_buffer_alloc(dev, 10, GFP_KERNEL, &wacom->data_dma); + if (!wacom_wac->data) + goto fail1; + + wacom->irq = usb_alloc_urb(0, GFP_KERNEL); + if (!wacom->irq) + goto fail2; + + wacom->usbdev = dev; + wacom->dev = input_dev; + usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); + strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); + + wacom_wac->features = get_wacom_feature(id); + if (wacom_wac->features->pktlen > 10) + BUG(); + + input_dev->name = wacom_wac->features->name; + wacom->wacom_wac = wacom_wac; + usb_to_input_id(dev, &input_dev->id); + + input_dev->cdev.dev = &intf->dev; + input_dev->private = wacom; + input_dev->open = wacom_open; + input_dev->close = wacom_close; + + input_dev->evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS); + input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) | BIT(BTN_TOUCH) | BIT(BTN_STYLUS); + input_set_abs_params(input_dev, ABS_X, 0, wacom_wac->features->x_max, 4, 0); + input_set_abs_params(input_dev, ABS_Y, 0, wacom_wac->features->y_max, 4, 0); + input_set_abs_params(input_dev, ABS_PRESSURE, 0, wacom_wac->features->pressure_max, 0, 0); + input_dev->absbit[LONG(ABS_MISC)] |= BIT(ABS_MISC); + + wacom_init_input_dev(input_dev, wacom_wac); + + endpoint = &intf->cur_altsetting->endpoint[0].desc; + + usb_fill_int_urb(wacom->irq, dev, + usb_rcvintpipe(dev, endpoint->bEndpointAddress), + wacom_wac->data, wacom_wac->features->pktlen, + wacom_wac->features->irq, wacom, endpoint->bInterval); + wacom->irq->transfer_dma = wacom->data_dma; + wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + input_register_device(wacom->dev); + + /* Ask the tablet to report tablet data. Repeat until it succeeds */ + do { + rep_data[0] = 2; + rep_data[1] = 2; + usb_set_report(intf, 3, 2, rep_data, 2); + usb_get_report(intf, 3, 2, rep_data, 2); + } while (rep_data[1] != 2 && limit++ < 5); + + usb_set_intfdata(intf, wacom); + return 0; + +fail2: usb_buffer_free(dev, 10, wacom_wac->data, wacom->data_dma); +fail1: input_free_device(input_dev); + kfree(wacom); + kfree(wacom_wac); + return -ENOMEM; +} + +static void wacom_disconnect(struct usb_interface *intf) +{ + struct wacom *wacom = usb_get_intfdata (intf); + + usb_set_intfdata(intf, NULL); + if (wacom) { + usb_kill_urb(wacom->irq); + input_unregister_device(wacom->dev); + usb_free_urb(wacom->irq); + usb_buffer_free(interface_to_usbdev(intf), 10, wacom->wacom_wac->data, wacom->data_dma); + kfree(wacom); + kfree(wacom->wacom_wac); + } +} + +static struct usb_driver wacom_driver = { + .name = "wacom", + .probe = wacom_probe, + .disconnect = wacom_disconnect, +}; + +static int __init wacom_init(void) +{ + int result; + wacom_driver.id_table = get_device_table(); + result = usb_register(&wacom_driver); + if (result == 0) + info(DRIVER_VERSION ":" DRIVER_DESC); + return result; +} + +static void __exit wacom_exit(void) +{ + usb_deregister(&wacom_driver); +} + +module_init(wacom_init); +module_exit(wacom_exit);
diff --git a/drivers/usb/input/wacom_wac.c b/drivers/usb/input/wacom_wac.c new file mode 100644 index 0000000..85d458c --- /dev/null +++ b/drivers/usb/input/wacom_wac.c
@@ -0,0 +1,646 @@ +/* + * drivers/usb/input/wacom_wac.c + * + * USB Wacom Graphire and Wacom Intuos tablet support - Wacom specific code + * + */ + +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ +#include "wacom.h" +#include "wacom_wac.h" + +static int wacom_penpartner_irq(struct wacom_wac *wacom, void *wcombo) +{ + unsigned char *data = wacom->data; + + switch (data[0]) { + case 1: + wacom_input_regs(wcombo); + if (data[5] & 0x80) { + wacom->tool[0] = (data[5] & 0x20) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN; + wacom->id[0] = (data[5] & 0x20) ? ERASER_DEVICE_ID : STYLUS_DEVICE_ID; + wacom_report_key(wcombo, wacom->tool[0], 1); + wacom_report_abs(wcombo, ABS_MISC, wacom->id[0]); /* report tool id */ + wacom_report_abs(wcombo, ABS_X, wacom_le16_to_cpu(&data[1])); + wacom_report_abs(wcombo, ABS_Y, wacom_le16_to_cpu(&data[3])); + wacom_report_abs(wcombo, ABS_PRESSURE, (signed char)data[6] + 127); + wacom_report_key(wcombo, BTN_TOUCH, ((signed char)data[6] > -127)); + wacom_report_key(wcombo, BTN_STYLUS, (data[5] & 0x40)); + } else { + wacom_report_key(wcombo, wacom->tool[0], 0); + wacom_report_abs(wcombo, ABS_MISC, 0); /* report tool id */ + wacom_report_abs(wcombo, ABS_PRESSURE, -1); + wacom_report_key(wcombo, BTN_TOUCH, 0); + } + break; + case 2: + wacom_input_regs(wcombo); + wacom_report_key(wcombo, BTN_TOOL_PEN, 1); + wacom_report_abs(wcombo, ABS_MISC, STYLUS_DEVICE_ID); /* report tool id */ + wacom_report_abs(wcombo, ABS_X, wacom_le16_to_cpu(&data[1])); + wacom_report_abs(wcombo, ABS_Y, wacom_le16_to_cpu(&data[3])); + wacom_report_abs(wcombo, ABS_PRESSURE, (signed char)data[6] + 127); + wacom_report_key(wcombo, BTN_TOUCH, ((signed char)data[6] > -80) && !(data[5] & 0x20)); + wacom_report_key(wcombo, BTN_STYLUS, (data[5] & 0x40)); + break; + default: + printk(KERN_INFO "wacom_penpartner_irq: received unknown report #%d\n", data[0]); + return 0; + } + return 1; +} + +static int wacom_pl_irq(struct wacom_wac *wacom, void *wcombo) +{ + unsigned char *data = wacom->data; + int prox, id, pressure; + + if (data[0] != 2) { + dbg("wacom_pl_irq: received unknown report #%d", data[0]); + return 0; + } + + prox = data[1] & 0x40; + + wacom_input_regs(wcombo); + + id = ERASER_DEVICE_ID; + if (prox) { + + pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1)); + if (wacom->features->pressure_max > 255) + pressure = (pressure << 1) | ((data[4] >> 6) & 1); + pressure += (wacom->features->pressure_max + 1) / 2; + + /* + * if going from out of proximity into proximity select between the eraser + * and the pen based on the state of the stylus2 button, choose eraser if + * pressed else choose pen. if not a proximity change from out to in, send + * an out of proximity for previous tool then a in for new tool. + */ + if (!wacom->tool[0]) { + /* Eraser bit set for DTF */ + if (data[1] & 0x10) + wacom->tool[1] = BTN_TOOL_RUBBER; + else + /* Going into proximity select tool */ + wacom->tool[1] = (data[4] & 0x20) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN; + } else { + /* was entered with stylus2 pressed */ + if (wacom->tool[1] == BTN_TOOL_RUBBER && !(data[4] & 0x20)) { + /* report out proximity for previous tool */ + wacom_report_key(wcombo, wacom->tool[1], 0); + wacom_input_sync(wcombo); + wacom->tool[1] = BTN_TOOL_PEN; + return 0; + } + } + if (wacom->tool[1] != BTN_TOOL_RUBBER) { + /* Unknown tool selected default to pen tool */ + wacom->tool[1] = BTN_TOOL_PEN; + id = STYLUS_DEVICE_ID; + } + wacom_report_key(wcombo, wacom->tool[1], prox); /* report in proximity for tool */ + wacom_report_abs(wcombo, ABS_MISC, id); /* report tool id */ + wacom_report_abs(wcombo, ABS_X, data[3] | (data[2] << 7) | ((data[1] & 0x03) << 14)); + wacom_report_abs(wcombo, ABS_Y, data[6] | (data[5] << 7) | ((data[4] & 0x03) << 14)); + wacom_report_abs(wcombo, ABS_PRESSURE, pressure); + + wacom_report_key(wcombo, BTN_TOUCH, data[4] & 0x08); + wacom_report_key(wcombo, BTN_STYLUS, data[4] & 0x10); + /* Only allow the stylus2 button to be reported for the pen tool. */ + wacom_report_key(wcombo, BTN_STYLUS2, (wacom->tool[1] == BTN_TOOL_PEN) && (data[4] & 0x20)); + } else { + /* report proximity-out of a (valid) tool */ + if (wacom->tool[1] != BTN_TOOL_RUBBER) { + /* Unknown tool selected default to pen tool */ + wacom->tool[1] = BTN_TOOL_PEN; + } + wacom_report_key(wcombo, wacom->tool[1], prox); + } + + wacom->tool[0] = prox; /* Save proximity state */ + return 1; +} + +static int wacom_ptu_irq(struct wacom_wac *wacom, void *wcombo) +{ + unsigned char *data = wacom->data; + int id; + + if (data[0] != 2) { + printk(KERN_INFO "wacom_ptu_irq: received unknown report #%d\n", data[0]); + return 0; + } + + wacom_input_regs(wcombo); + if (data[1] & 0x04) { + wacom_report_key(wcombo, BTN_TOOL_RUBBER, data[1] & 0x20); + wacom_report_key(wcombo, BTN_TOUCH, data[1] & 0x08); + id = ERASER_DEVICE_ID; + } else { + wacom_report_key(wcombo, BTN_TOOL_PEN, data[1] & 0x20); + wacom_report_key(wcombo, BTN_TOUCH, data[1] & 0x01); + id = STYLUS_DEVICE_ID; + } + wacom_report_abs(wcombo, ABS_MISC, id); /* report tool id */ + wacom_report_abs(wcombo, ABS_X, wacom_le16_to_cpu(&data[2])); + wacom_report_abs(wcombo, ABS_Y, wacom_le16_to_cpu(&data[4])); + wacom_report_abs(wcombo, ABS_PRESSURE, wacom_le16_to_cpu(&data[6])); + wacom_report_key(wcombo, BTN_STYLUS, data[1] & 0x02); + wacom_report_key(wcombo, BTN_STYLUS2, data[1] & 0x10); + return 1; +} + +static int wacom_graphire_irq(struct wacom_wac *wacom, void *wcombo) +{ + unsigned char *data = wacom->data; + int x, y, id, rw; + + if (data[0] != 2) { + dbg("wacom_graphire_irq: received unknown report #%d", data[0]); + return 0; + } + + wacom_input_regs(wcombo); + + id = STYLUS_DEVICE_ID; + if (data[1] & 0x10) { /* in prox */ + + switch ((data[1] >> 5) & 3) { + + case 0: /* Pen */ + wacom->tool[0] = BTN_TOOL_PEN; + break; + + case 1: /* Rubber */ + wacom->tool[0] = BTN_TOOL_RUBBER; + id = ERASER_DEVICE_ID; + break; + + case 2: /* Mouse with wheel */ + wacom_report_key(wcombo, BTN_MIDDLE, data[1] & 0x04); + if (wacom->features->type == WACOM_G4) { + rw = data[7] & 0x04 ? (data[7] & 0x03)-4 : (data[7] & 0x03); + wacom_report_rel(wcombo, REL_WHEEL, -rw); + } else + wacom_report_rel(wcombo, REL_WHEEL, -(signed char) data[6]); + /* fall through */ + + case 3: /* Mouse without wheel */ + wacom->tool[0] = BTN_TOOL_MOUSE; + id = CURSOR_DEVICE_ID; + wacom_report_key(wcombo, BTN_LEFT, data[1] & 0x01); + wacom_report_key(wcombo, BTN_RIGHT, data[1] & 0x02); + if (wacom->features->type == WACOM_G4) + wacom_report_abs(wcombo, ABS_DISTANCE, data[6]); + else + wacom_report_abs(wcombo, ABS_DISTANCE, data[7]); + break; + } + } + + if (data[1] & 0x90) { + x = wacom_le16_to_cpu(&data[2]); + y = wacom_le16_to_cpu(&data[4]); + wacom_report_abs(wcombo, ABS_X, x); + wacom_report_abs(wcombo, ABS_Y, y); + if (wacom->tool[0] != BTN_TOOL_MOUSE) { + wacom_report_abs(wcombo, ABS_PRESSURE, data[6] | ((data[7] & 0x01) << 8)); + wacom_report_key(wcombo, BTN_TOUCH, data[1] & 0x01); + wacom_report_key(wcombo, BTN_STYLUS, data[1] & 0x02); + wacom_report_key(wcombo, BTN_STYLUS2, data[1] & 0x04); + } + } + + if (data[1] & 0x10) + wacom_report_abs(wcombo, ABS_MISC, id); /* report tool id */ + else + wacom_report_abs(wcombo, ABS_MISC, 0); /* reset tool id */ + wacom_report_key(wcombo, wacom->tool[0], data[1] & 0x10); + wacom_input_sync(wcombo); + + /* send pad data */ + if (wacom->features->type == WACOM_G4) { + if ( (wacom->serial[1] & 0xc0) != (data[7] & 0xf8) ) { + wacom->id[1] = 1; + wacom->serial[1] = (data[7] & 0xf8); + wacom_report_key(wcombo, BTN_0, (data[7] & 0x40)); + wacom_report_key(wcombo, BTN_4, (data[7] & 0x80)); + rw = ((data[7] & 0x18) >> 3) - ((data[7] & 0x20) >> 3); + wacom_report_rel(wcombo, REL_WHEEL, rw); + wacom_report_key(wcombo, BTN_TOOL_FINGER, 0xf0); + wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xf0); + } else if (wacom->id[1]) { + wacom->id[1] = 0; + wacom_report_key(wcombo, BTN_TOOL_FINGER, 0); + wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xf0); + } + } + return 1; +} + +static int wacom_intuos_inout(struct wacom_wac *wacom, void *wcombo) +{ + unsigned char *data = wacom->data; + int idx; + + /* tool number */ + idx = data[1] & 0x01; + + /* Enter report */ + if ((data[1] & 0xfc) == 0xc0) { + /* serial number of the tool */ + wacom->serial[idx] = ((data[3] & 0x0f) << 28) + + (data[4] << 20) + (data[5] << 12) + + (data[6] << 4) + (data[7] >> 4); + + wacom->id[idx] = (data[2] << 4) | (data[3] >> 4); + switch (wacom->id[idx]) { + case 0x812: /* Inking pen */ + case 0x801: /* Intuos3 Inking pen */ + case 0x012: + wacom->tool[idx] = BTN_TOOL_PENCIL; + break; + case 0x822: /* Pen */ + case 0x842: + case 0x852: + case 0x823: /* Intuos3 Grip Pen */ + case 0x813: /* Intuos3 Classic Pen */ + case 0x885: /* Intuos3 Marker Pen */ + case 0x022: + wacom->tool[idx] = BTN_TOOL_PEN; + break; + case 0x832: /* Stroke pen */ + case 0x032: + wacom->tool[idx] = BTN_TOOL_BRUSH; + break; + case 0x007: /* Mouse 4D and 2D */ + case 0x09c: + case 0x094: + case 0x017: /* Intuos3 2D Mouse */ + wacom->tool[idx] = BTN_TOOL_MOUSE; + break; + case 0x096: /* Lens cursor */ + case 0x097: /* Intuos3 Lens cursor */ + wacom->tool[idx] = BTN_TOOL_LENS; + break; + case 0x82a: /* Eraser */ + case 0x85a: + case 0x91a: + case 0xd1a: + case 0x0fa: + case 0x82b: /* Intuos3 Grip Pen Eraser */ + case 0x81b: /* Intuos3 Classic Pen Eraser */ + case 0x91b: /* Intuos3 Airbrush Eraser */ + wacom->tool[idx] = BTN_TOOL_RUBBER; + break; + case 0xd12: + case 0x912: + case 0x112: + case 0x913: /* Intuos3 Airbrush */ + wacom->tool[idx] = BTN_TOOL_AIRBRUSH; + break; + default: /* Unknown tool */ + wacom->tool[idx] = BTN_TOOL_PEN; + } + /* only large I3 support Lens Cursor */ + if(!((wacom->tool[idx] == BTN_TOOL_LENS) && + (wacom->features->type == INTUOS3))) { + wacom_report_abs(wcombo, ABS_MISC, wacom->id[idx]); /* report tool id */ + wacom_report_key(wcombo, wacom->tool[idx], 1); + wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, wacom->serial[idx]); + return 2; + } + return 1; + } + + /* Exit report */ + if ((data[1] & 0xfe) == 0x80) { + wacom_report_key(wcombo, wacom->tool[idx], 0); + wacom_report_abs(wcombo, ABS_MISC, 0); /* reset tool id */ + wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, wacom->serial[idx]); + return 2; + } + return 0; +} + +static void wacom_intuos_general(struct wacom_wac *wacom, void *wcombo) +{ + unsigned char *data = wacom->data; + unsigned int t; + + /* general pen packet */ + if ((data[1] & 0xb8) == 0xa0) { + t = (data[6] << 2) | ((data[7] >> 6) & 3); + wacom_report_abs(wcombo, ABS_PRESSURE, t); + wacom_report_abs(wcombo, ABS_TILT_X, + ((data[7] << 1) & 0x7e) | (data[8] >> 7)); + wacom_report_abs(wcombo, ABS_TILT_Y, data[8] & 0x7f); + wacom_report_key(wcombo, BTN_STYLUS, data[1] & 2); + wacom_report_key(wcombo, BTN_STYLUS2, data[1] & 4); + wacom_report_key(wcombo, BTN_TOUCH, t > 10); + } + + /* airbrush second packet */ + if ((data[1] & 0xbc) == 0xb4) { + wacom_report_abs(wcombo, ABS_WHEEL, + (data[6] << 2) | ((data[7] >> 6) & 3)); + wacom_report_abs(wcombo, ABS_TILT_X, + ((data[7] << 1) & 0x7e) | (data[8] >> 7)); + wacom_report_abs(wcombo, ABS_TILT_Y, data[8] & 0x7f); + } + return; +} + +static int wacom_intuos_irq(struct wacom_wac *wacom, void *wcombo) +{ + unsigned char *data = wacom->data; + unsigned int t; + int idx, result; + + if (data[0] != 2 && data[0] != 5 && data[0] != 6 && data[0] != 12) { + dbg("wacom_intuos_irq: received unknown report #%d", data[0]); + return 0; + } + + wacom_input_regs(wcombo); + + /* tool number */ + idx = data[1] & 0x01; + + /* pad packets. Works as a second tool and is always in prox */ + if (data[0] == 12) { + /* initiate the pad as a device */ + if (wacom->tool[1] != BTN_TOOL_FINGER) + wacom->tool[1] = BTN_TOOL_FINGER; + + wacom_report_key(wcombo, BTN_0, (data[5] & 0x01)); + wacom_report_key(wcombo, BTN_1, (data[5] & 0x02)); + wacom_report_key(wcombo, BTN_2, (data[5] & 0x04)); + wacom_report_key(wcombo, BTN_3, (data[5] & 0x08)); + wacom_report_key(wcombo, BTN_4, (data[6] & 0x01)); + wacom_report_key(wcombo, BTN_5, (data[6] & 0x02)); + wacom_report_key(wcombo, BTN_6, (data[6] & 0x04)); + wacom_report_key(wcombo, BTN_7, (data[6] & 0x08)); + wacom_report_abs(wcombo, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]); + wacom_report_abs(wcombo, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]); + + if((data[5] & 0x0f) | (data[6] & 0x0f) | (data[1] & 0x1f) | data[2]) + wacom_report_key(wcombo, wacom->tool[1], 1); + else + wacom_report_key(wcombo, wacom->tool[1], 0); + wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, 0xffffffff); + return 1; + } + + /* process in/out prox events */ + result = wacom_intuos_inout(wacom, wcombo); + if (result) + return result-1; + + /* Cintiq doesn't send data when RDY bit isn't set */ + if ((wacom->features->type == CINTIQ) && !(data[1] & 0x40)) + return 0; + + if (wacom->features->type >= INTUOS3) { + wacom_report_abs(wcombo, ABS_X, (data[2] << 9) | (data[3] << 1) | ((data[9] >> 1) & 1)); + wacom_report_abs(wcombo, ABS_Y, (data[4] << 9) | (data[5] << 1) | (data[9] & 1)); + wacom_report_abs(wcombo, ABS_DISTANCE, ((data[9] >> 2) & 0x3f)); + } else { + wacom_report_abs(wcombo, ABS_X, wacom_be16_to_cpu(&data[2])); + wacom_report_abs(wcombo, ABS_Y, wacom_be16_to_cpu(&data[4])); + wacom_report_abs(wcombo, ABS_DISTANCE, ((data[9] >> 3) & 0x1f)); + } + + /* process general packets */ + wacom_intuos_general(wacom, wcombo); + + /* 4D mouse, 2D mouse, marker pen rotation, or Lens cursor packets */ + if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0) { + + if (data[1] & 0x02) { + /* Rotation packet */ + if (wacom->features->type >= INTUOS3) { + /* I3 marker pen rotation reported as wheel + * due to valuator limitation + */ + t = (data[6] << 3) | ((data[7] >> 5) & 7); + t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) : + ((t-1) / 2 + 450)) : (450 - t / 2) ; + wacom_report_abs(wcombo, ABS_WHEEL, t); + } else { + /* 4D mouse rotation packet */ + t = (data[6] << 3) | ((data[7] >> 5) & 7); + wacom_report_abs(wcombo, ABS_RZ, (data[7] & 0x20) ? + ((t - 1) / 2) : -t / 2); + } + + } else if (!(data[1] & 0x10) && wacom->features->type < INTUOS3) { + /* 4D mouse packet */ + wacom_report_key(wcombo, BTN_LEFT, data[8] & 0x01); + wacom_report_key(wcombo, BTN_MIDDLE, data[8] & 0x02); + wacom_report_key(wcombo, BTN_RIGHT, data[8] & 0x04); + + wacom_report_key(wcombo, BTN_SIDE, data[8] & 0x20); + wacom_report_key(wcombo, BTN_EXTRA, data[8] & 0x10); + t = (data[6] << 2) | ((data[7] >> 6) & 3); + wacom_report_abs(wcombo, ABS_THROTTLE, (data[8] & 0x08) ? -t : t); + + } else if (wacom->tool[idx] == BTN_TOOL_MOUSE) { + /* 2D mouse packet */ + wacom_report_key(wcombo, BTN_LEFT, data[8] & 0x04); + wacom_report_key(wcombo, BTN_MIDDLE, data[8] & 0x08); + wacom_report_key(wcombo, BTN_RIGHT, data[8] & 0x10); + wacom_report_rel(wcombo, REL_WHEEL, (data[8] & 0x01) + - ((data[8] & 0x02) >> 1)); + + /* I3 2D mouse side buttons */ + if (wacom->features->type == INTUOS3) { + wacom_report_key(wcombo, BTN_SIDE, data[8] & 0x40); + wacom_report_key(wcombo, BTN_EXTRA, data[8] & 0x20); + } + + } else if (wacom->features->type < INTUOS3) { + /* Lens cursor packets */ + wacom_report_key(wcombo, BTN_LEFT, data[8] & 0x01); + wacom_report_key(wcombo, BTN_MIDDLE, data[8] & 0x02); + wacom_report_key(wcombo, BTN_RIGHT, data[8] & 0x04); + wacom_report_key(wcombo, BTN_SIDE, data[8] & 0x10); + wacom_report_key(wcombo, BTN_EXTRA, data[8] & 0x08); + } + } + + wacom_report_abs(wcombo, ABS_MISC, wacom->id[idx]); /* report tool id */ + wacom_report_key(wcombo, wacom->tool[idx], 1); + wacom_input_event(wcombo, EV_MSC, MSC_SERIAL, wacom->serial[idx]); + return 1; +} + +int wacom_wac_irq(struct wacom_wac *wacom_wac, void *wcombo) +{ + switch (wacom_wac->features->type) { + case PENPARTNER: + return (wacom_penpartner_irq(wacom_wac, wcombo)); + break; + case PL: + return (wacom_pl_irq(wacom_wac, wcombo)); + break; + case WACOM_G4: + case GRAPHIRE: + return (wacom_graphire_irq(wacom_wac, wcombo)); + break; + case PTU: + return (wacom_ptu_irq(wacom_wac, wcombo)); + break; + case INTUOS: + case INTUOS3: + case INTUOS3L: + case CINTIQ: + return (wacom_intuos_irq(wacom_wac, wcombo)); + break; + default: + return 0; + } + return 0; +} + +void wacom_init_input_dev(struct input_dev *input_dev, struct wacom_wac *wacom_wac) +{ + switch (wacom_wac->features->type) { + case WACOM_G4: + input_dev_g4(input_dev, wacom_wac); + /* fall through */ + case GRAPHIRE: + input_dev_g(input_dev, wacom_wac); + break; + case INTUOS3: + case INTUOS3L: + case CINTIQ: + input_dev_i3(input_dev, wacom_wac); + /* fall through */ + case INTUOS: + input_dev_i(input_dev, wacom_wac); + break; + case PL: + case PTU: + input_dev_pl(input_dev, wacom_wac); + break; + case PENPARTNER: + input_dev_pt(input_dev, wacom_wac); + break; + } + return; +} + +static struct wacom_features wacom_features[] = { + { "Wacom Penpartner", 7, 5040, 3780, 255, 32, PENPARTNER, wacom_sys_irq }, + { "Wacom Graphire", 8, 10206, 7422, 511, 32, GRAPHIRE, wacom_sys_irq }, + { "Wacom Graphire2 4x5", 8, 10206, 7422, 511, 32, GRAPHIRE, wacom_sys_irq }, + { "Wacom Graphire2 5x7", 8, 13918, 10206, 511, 32, GRAPHIRE, wacom_sys_irq }, + { "Wacom Graphire3", 8, 10208, 7424, 511, 32, GRAPHIRE, wacom_sys_irq }, + { "Wacom Graphire3 6x8", 8, 16704, 12064, 511, 32, GRAPHIRE, wacom_sys_irq }, + { "Wacom Graphire4 4x5", 8, 10208, 7424, 511, 32, WACOM_G4, wacom_sys_irq }, + { "Wacom Graphire4 6x8", 8, 16704, 12064, 511, 32, WACOM_G4, wacom_sys_irq }, + { "Wacom Volito", 8, 5104, 3712, 511, 32, GRAPHIRE, wacom_sys_irq }, + { "Wacom PenStation2", 8, 3250, 2320, 255, 32, GRAPHIRE, wacom_sys_irq }, + { "Wacom Volito2 4x5", 8, 5104, 3712, 511, 32, GRAPHIRE, wacom_sys_irq }, + { "Wacom Volito2 2x3", 8, 3248, 2320, 511, 32, GRAPHIRE, wacom_sys_irq }, + { "Wacom PenPartner2", 8, 3250, 2320, 255, 32, GRAPHIRE, wacom_sys_irq }, + { "Wacom Intuos 4x5", 10, 12700, 10600, 1023, 15, INTUOS, wacom_sys_irq}, + { "Wacom Intuos 6x8", 10, 20320, 16240, 1023, 15, INTUOS, wacom_sys_irq }, + { "Wacom Intuos 9x12", 10, 30480, 24060, 1023, 15, INTUOS, wacom_sys_irq }, + { "Wacom Intuos 12x12", 10, 30480, 31680, 1023, 15, INTUOS, wacom_sys_irq }, + { "Wacom Intuos 12x18", 10, 45720, 31680, 1023, 15, INTUOS, wacom_sys_irq}, + { "Wacom PL400", 8, 5408, 4056, 255, 32, PL, wacom_sys_irq }, + { "Wacom PL500", 8, 6144, 4608, 255, 32, PL, wacom_sys_irq }, + { "Wacom PL600", 8, 6126, 4604, 255, 32, PL, wacom_sys_irq }, + { "Wacom PL600SX", 8, 6260, 5016, 255, 32, PL, wacom_sys_irq }, + { "Wacom PL550", 8, 6144, 4608, 511, 32, PL, wacom_sys_irq }, + { "Wacom PL800", 8, 7220, 5780, 511, 32, PL, wacom_sys_irq }, + { "Wacom PL700", 8, 6758, 5406, 511, 32, PL, wacom_sys_irq }, + { "Wacom PL510", 8, 6282, 4762, 511, 32, PL, wacom_sys_irq }, + { "Wacom DTU710", 8, 34080, 27660, 511, 32, PL, wacom_sys_irq }, + { "Wacom DTF521", 8, 6282, 4762, 511, 32, PL, wacom_sys_irq }, + { "Wacom DTF720", 8, 6858, 5506, 511, 32, PL, wacom_sys_irq }, + { "Wacom Cintiq Partner",8, 20480, 15360, 511, 32, PTU, wacom_sys_irq }, + { "Wacom Intuos2 4x5", 10, 12700, 10600, 1023, 15, INTUOS, wacom_sys_irq }, + { "Wacom Intuos2 6x8", 10, 20320, 16240, 1023, 15, INTUOS, wacom_sys_irq }, + { "Wacom Intuos2 9x12", 10, 30480, 24060, 1023, 15, INTUOS, wacom_sys_irq }, + { "Wacom Intuos2 12x12", 10, 30480, 31680, 1023, 15, INTUOS, wacom_sys_irq }, + { "Wacom Intuos2 12x18", 10, 45720, 31680, 1023, 15, INTUOS, wacom_sys_irq }, + { "Wacom Intuos3 4x5", 10, 25400, 20320, 1023, 15, INTUOS3, wacom_sys_irq }, + { "Wacom Intuos3 6x8", 10, 40640, 30480, 1023, 15, INTUOS3, wacom_sys_irq }, + { "Wacom Intuos3 9x12", 10, 60960, 45720, 1023, 15, INTUOS3, wacom_sys_irq }, + { "Wacom Intuos3 12x12", 10, 60960, 60960, 1023, 15, INTUOS3L, wacom_sys_irq }, + { "Wacom Intuos3 12x19", 10, 97536, 60960, 1023, 15, INTUOS3L, wacom_sys_irq }, + { "Wacom Intuos3 6x11", 10, 54204, 31750, 1023, 15, INTUOS3, wacom_sys_irq }, + { "Wacom Cintiq 21UX", 10, 87200, 65600, 1023, 15, CINTIQ, wacom_sys_irq }, + { "Wacom Intuos2 6x8", 10, 20320, 16240, 1023, 15, INTUOS, wacom_sys_irq }, + { } +}; + +static struct usb_device_id wacom_ids[] = { + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x00) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x10) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x11) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x12) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x13) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x14) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x15) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x16) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x60) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x61) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x62) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x63) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x64) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x20) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x21) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x22) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x23) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x24) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x30) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x31) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x32) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x33) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x34) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x35) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x37) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x38) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x39) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC0) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xC4) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x03) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x41) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x42) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x43) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x44) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x45) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB0) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB1) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB2) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB3) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB4) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB5) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x3F) }, + { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x47) }, + { } +}; + +const struct usb_device_id * get_device_table(void) { + const struct usb_device_id * id_table = wacom_ids; + return id_table; +} + +struct wacom_features * get_wacom_feature(const struct usb_device_id * id) { + int index = id - wacom_ids; + struct wacom_features *wf = &wacom_features[index]; + return wf; +} + +MODULE_DEVICE_TABLE(usb, wacom_ids);
diff --git a/drivers/usb/input/wacom_wac.h b/drivers/usb/input/wacom_wac.h new file mode 100644 index 0000000..ceae7bf --- /dev/null +++ b/drivers/usb/input/wacom_wac.h
@@ -0,0 +1,48 @@ +/* + * drivers/usb/input/wacom_wac.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ +#ifndef WACOM_WAC_H +#define WACOM_WAC_H + +#define STYLUS_DEVICE_ID 0x02 +#define CURSOR_DEVICE_ID 0x06 +#define ERASER_DEVICE_ID 0x0A + +enum { + PENPARTNER = 0, + GRAPHIRE, + WACOM_G4, + PTU, + PL, + INTUOS, + INTUOS3, + INTUOS3L, + CINTIQ, + MAX_TYPE +}; + +struct wacom_features { + char *name; + int pktlen; + int x_max; + int y_max; + int pressure_max; + int distance_max; + int type; + usb_complete_t irq; +}; + +struct wacom_wac { + signed char *data; + int tool[2]; + int id[2]; + __u32 serial[2]; + struct wacom_features *features; +}; + +#endif
diff --git a/drivers/usb/input/yealink.c b/drivers/usb/input/yealink.c index 7b45fd3..7291e7a 100644 --- a/drivers/usb/input/yealink.c +++ b/drivers/usb/input/yealink.c
@@ -971,7 +971,7 @@ DRIVER_VERSION, sizeof(DRIVER_VERSION)); /* Register sysfs hooks (don't care about failure) */ - sysfs_create_group(&intf->dev.kobj, &yld_attr_group); + ret = sysfs_create_group(&intf->dev.kobj, &yld_attr_group); return 0; }
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig index 88928a4..c29658f 100644 --- a/drivers/usb/misc/Kconfig +++ b/drivers/usb/misc/Kconfig
@@ -32,6 +32,16 @@ To compile this driver as a module, choose M here: the module will be called emi26. +config USB_ADUTUX + tristate "ADU devices from Ontrak Control Systems (EXPERIMENTAL)" + depends on USB && EXPERIMENTAL + help + Say Y if you want to use an ADU device from Ontrak Control + Systems. + + To compile this driver as a module, choose M here. The module + will be called adutux. + config USB_AUERSWALD tristate "USB Auerswald ISDN support (EXPERIMENTAL)" depends on USB && EXPERIMENTAL @@ -115,19 +125,36 @@ To compile this driver as a module, choose M here: the module will be called cytherm. -config USB_PHIDGETKIT - tristate "USB PhidgetKit support" +config USB_PHIDGET + tristate "USB Phidgets drivers" depends on USB help - Say Y here if you want to connect a PhidgetKit USB device from - Phidgets Inc. + Say Y here to enable the various drivers for devices from + Phidgets inc. + +config USB_PHIDGETKIT + tristate "USB PhidgetInterfaceKit support" + depends on USB_PHIDGET + help + Say Y here if you want to connect a PhidgetInterfaceKit USB device + from Phidgets Inc. To compile this driver as a module, choose M here: the module will be called phidgetkit. +config USB_PHIDGETMOTORCONTROL + tristate "USB PhidgetMotorControl support" + depends on USB_PHIDGET + help + Say Y here if you want to connect a PhidgetMotorControl USB device + from Phidgets Inc. + + To compile this driver as a module, choose M here: the + module will be called phidgetmotorcontrol. + config USB_PHIDGETSERVO tristate "USB PhidgetServo support" - depends on USB + depends on USB_PHIDGET help Say Y here if you want to connect an 1 or 4 Motor PhidgetServo servo controller version 2.0 or 3.0. @@ -151,6 +178,30 @@ See also <http://www.fs.tum.de/~echtler/idmouse/>. +config USB_FTDI_ELAN + tristate "Elan PCMCIA CardBus Adapter USB Client" + depends on USB + default M + help + ELAN's Uxxx series of adapters are USB to PCMCIA CardBus adapters. + Currently only the U132 adapter is available. + + The U132 is specifically designed for CardBus PC cards that contain + an OHCI host controller. Typical PC cards are the Orange Mobile 3G + Option GlobeTrotter Fusion card. The U132 adapter will *NOT* work + with PC cards that do not contain an OHCI controller. To use a U132 + adapter you will need this "ftdi-elan" module as well as the "u132-hcd" + module which is a USB host controller driver that talks to the OHCI + controller within CardBus card that are inserted in the U132 adapter. + + This driver has been tested with a CardBus OHCI USB adapter, and + worked with a USB PEN Drive inserted into the first USB port of + the PCCARD. A rather pointless thing to do, but useful for testing. + + See also the USB_U132_HCD entry "Elan U132 Adapter Host Controller" + + It is safe to say M here. + config USB_APPLEDISPLAY tristate "Apple Cinema Display support" depends on USB
diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile index 2927260..2be70fa 100644 --- a/drivers/usb/misc/Makefile +++ b/drivers/usb/misc/Makefile
@@ -3,22 +3,25 @@ # (the ones that don't fit into any other categories) # +obj-$(CONFIG_USB_ADUTUX) += adutux.o obj-$(CONFIG_USB_AUERSWALD) += auerswald.o obj-$(CONFIG_USB_CYPRESS_CY7C63)+= cypress_cy7c63.o obj-$(CONFIG_USB_CYTHERM) += cytherm.o obj-$(CONFIG_USB_EMI26) += emi26.o obj-$(CONFIG_USB_EMI62) += emi62.o +obj-$(CONFIG_USB_FTDI_ELAN) += ftdi-elan.o obj-$(CONFIG_USB_IDMOUSE) += idmouse.o obj-$(CONFIG_USB_LCD) += usblcd.o obj-$(CONFIG_USB_LD) += ldusb.o obj-$(CONFIG_USB_LED) += usbled.o obj-$(CONFIG_USB_LEGOTOWER) += legousbtower.o +obj-$(CONFIG_USB_PHIDGET) += phidget.o obj-$(CONFIG_USB_PHIDGETKIT) += phidgetkit.o +obj-$(CONFIG_USB_PHIDGETMOTORCONTROL) += phidgetmotorcontrol.o obj-$(CONFIG_USB_PHIDGETSERVO) += phidgetservo.o obj-$(CONFIG_USB_RIO500) += rio500.o obj-$(CONFIG_USB_TEST) += usbtest.o obj-$(CONFIG_USB_USS720) += uss720.o -obj-$(CONFIG_USB_APPLEDISPLAY) += appledisplay.o obj-$(CONFIG_USB_SISUSBVGA) += sisusbvga/
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c new file mode 100644 index 0000000..d396319 --- /dev/null +++ b/drivers/usb/misc/adutux.c
@@ -0,0 +1,900 @@ +/* + * adutux - driver for ADU devices from Ontrak Control Systems + * This is an experimental driver. Use at your own risk. + * This driver is not supported by Ontrak Control Systems. + * + * Copyright (c) 2003 John Homppi (SCO, leave this notice here) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * derived from the Lego USB Tower driver 0.56: + * Copyright (c) 2003 David Glance <davidgsf@sourceforge.net> + * 2001 Juergen Stuber <stuber@loria.fr> + * that was derived from USB Skeleton driver - 0.5 + * Copyright (c) 2001 Greg Kroah-Hartman (greg@kroah.com) + * + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/usb.h> +#include <asm/uaccess.h> + +#ifdef CONFIG_USB_DEBUG +static int debug = 5; +#else +static int debug = 1; +#endif + +/* Use our own dbg macro */ +#undef dbg +#define dbg(lvl, format, arg...) \ +do { \ + if (debug >= lvl) \ + printk(KERN_DEBUG __FILE__ " : " format " \n", ## arg); \ +} while (0) + + +/* Version Information */ +#define DRIVER_VERSION "v0.0.13" +#define DRIVER_AUTHOR "John Homppi" +#define DRIVER_DESC "adutux (see www.ontrak.net)" + +/* Module parameters */ +module_param(debug, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Debug enabled or not"); + +/* Define these values to match your device */ +#define ADU_VENDOR_ID 0x0a07 +#define ADU_PRODUCT_ID 0x0064 + +/* table of devices that work with this driver */ +static struct usb_device_id device_table [] = { + { USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID) }, /* ADU100 */ + { USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+20) }, /* ADU120 */ + { USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+30) }, /* ADU130 */ + { USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+100) }, /* ADU200 */ + { USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+108) }, /* ADU208 */ + { USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+118) }, /* ADU218 */ + { }/* Terminating entry */ +}; + +MODULE_DEVICE_TABLE(usb, device_table); + +#ifdef CONFIG_USB_DYNAMIC_MINORS +#define ADU_MINOR_BASE 0 +#else +#define ADU_MINOR_BASE 67 +#endif + +/* we can have up to this number of device plugged in at once */ +#define MAX_DEVICES 16 + +#define COMMAND_TIMEOUT (2*HZ) /* 60 second timeout for a command */ + +/* Structure to hold all of our device specific stuff */ +struct adu_device { + struct semaphore sem; /* locks this structure */ + struct usb_device* udev; /* save off the usb device pointer */ + struct usb_interface* interface; + unsigned char minor; /* the starting minor number for this device */ + char serial_number[8]; + + int open_count; /* number of times this port has been opened */ + + char* read_buffer_primary; + int read_buffer_length; + char* read_buffer_secondary; + int secondary_head; + int secondary_tail; + spinlock_t buflock; + + wait_queue_head_t read_wait; + wait_queue_head_t write_wait; + + char* interrupt_in_buffer; + struct usb_endpoint_descriptor* interrupt_in_endpoint; + struct urb* interrupt_in_urb; + int read_urb_finished; + + char* interrupt_out_buffer; + struct usb_endpoint_descriptor* interrupt_out_endpoint; + struct urb* interrupt_out_urb; +}; + +/* prevent races between open() and disconnect */ +static DEFINE_MUTEX(disconnect_mutex); +static struct usb_driver adu_driver; + +static void adu_debug_data(int level, const char *function, int size, + const unsigned char *data) +{ + int i; + + if (debug < level) + return; + + printk(KERN_DEBUG __FILE__": %s - length = %d, data = ", + function, size); + for (i = 0; i < size; ++i) + printk("%.2x ", data[i]); + printk("\n"); +} + +/** + * adu_abort_transfers + * aborts transfers and frees associated data structures + */ +static void adu_abort_transfers(struct adu_device *dev) +{ + dbg(2," %s : enter", __FUNCTION__); + + if (dev == NULL) { + dbg(1," %s : dev is null", __FUNCTION__); + goto exit; + } + + if (dev->udev == NULL) { + dbg(1," %s : udev is null", __FUNCTION__); + goto exit; + } + + dbg(2," %s : udev state %d", __FUNCTION__, dev->udev->state); + if (dev->udev->state == USB_STATE_NOTATTACHED) { + dbg(1," %s : udev is not attached", __FUNCTION__); + goto exit; + } + + /* shutdown transfer */ + usb_unlink_urb(dev->interrupt_in_urb); + usb_unlink_urb(dev->interrupt_out_urb); + +exit: + dbg(2," %s : leave", __FUNCTION__); +} + +static void adu_delete(struct adu_device *dev) +{ + dbg(2, "%s enter", __FUNCTION__); + + adu_abort_transfers(dev); + + /* free data structures */ + usb_free_urb(dev->interrupt_in_urb); + usb_free_urb(dev->interrupt_out_urb); + kfree(dev->read_buffer_primary); + kfree(dev->read_buffer_secondary); + kfree(dev->interrupt_in_buffer); + kfree(dev->interrupt_out_buffer); + kfree(dev); + + dbg(2, "%s : leave", __FUNCTION__); +} + +static void adu_interrupt_in_callback(struct urb *urb, struct pt_regs *regs) +{ + struct adu_device *dev = urb->context; + + dbg(4," %s : enter, status %d", __FUNCTION__, urb->status); + adu_debug_data(5, __FUNCTION__, urb->actual_length, + urb->transfer_buffer); + + spin_lock(&dev->buflock); + + if (urb->status != 0) { + if ((urb->status != -ENOENT) && (urb->status != -ECONNRESET)) { + dbg(1," %s : nonzero status received: %d", + __FUNCTION__, urb->status); + } + goto exit; + } + + if (urb->actual_length > 0 && dev->interrupt_in_buffer[0] != 0x00) { + if (dev->read_buffer_length < + (4 * le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize)) - + (urb->actual_length)) { + memcpy (dev->read_buffer_primary + + dev->read_buffer_length, + dev->interrupt_in_buffer, urb->actual_length); + + dev->read_buffer_length += urb->actual_length; + dbg(2," %s reading %d ", __FUNCTION__, + urb->actual_length); + } else { + dbg(1," %s : read_buffer overflow", __FUNCTION__); + } + } + +exit: + dev->read_urb_finished = 1; + spin_unlock(&dev->buflock); + /* always wake up so we recover from errors */ + wake_up_interruptible(&dev->read_wait); + adu_debug_data(5, __FUNCTION__, urb->actual_length, + urb->transfer_buffer); + dbg(4," %s : leave, status %d", __FUNCTION__, urb->status); +} + +static void adu_interrupt_out_callback(struct urb *urb, struct pt_regs *regs) +{ + struct adu_device *dev = urb->context; + + dbg(4," %s : enter, status %d", __FUNCTION__, urb->status); + adu_debug_data(5,__FUNCTION__, urb->actual_length, urb->transfer_buffer); + + if (urb->status != 0) { + if ((urb->status != -ENOENT) && + (urb->status != -ECONNRESET)) { + dbg(1, " %s :nonzero status received: %d", + __FUNCTION__, urb->status); + } + goto exit; + } + + wake_up_interruptible(&dev->write_wait); +exit: + + adu_debug_data(5, __FUNCTION__, urb->actual_length, + urb->transfer_buffer); + dbg(4," %s : leave, status %d", __FUNCTION__, urb->status); +} + +static int adu_open(struct inode *inode, struct file *file) +{ + struct adu_device *dev = NULL; + struct usb_interface *interface; + int subminor; + int retval = 0; + + dbg(2,"%s : enter", __FUNCTION__); + + subminor = iminor(inode); + + mutex_lock(&disconnect_mutex); + + interface = usb_find_interface(&adu_driver, subminor); + if (!interface) { + err("%s - error, can't find device for minor %d", + __FUNCTION__, subminor); + retval = -ENODEV; + goto exit_no_device; + } + + dev = usb_get_intfdata(interface); + if (!dev) { + retval = -ENODEV; + goto exit_no_device; + } + + /* lock this device */ + if ((retval = down_interruptible(&dev->sem))) { + dbg(2, "%s : sem down failed", __FUNCTION__); + goto exit_no_device; + } + + /* increment our usage count for the device */ + ++dev->open_count; + dbg(2,"%s : open count %d", __FUNCTION__, dev->open_count); + + /* save device in the file's private structure */ + file->private_data = dev; + + /* initialize in direction */ + dev->read_buffer_length = 0; + + /* fixup first read by having urb waiting for it */ + usb_fill_int_urb(dev->interrupt_in_urb,dev->udev, + usb_rcvintpipe(dev->udev, + dev->interrupt_in_endpoint->bEndpointAddress), + dev->interrupt_in_buffer, + le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize), + adu_interrupt_in_callback, dev, + dev->interrupt_in_endpoint->bInterval); + /* dev->interrupt_in_urb->transfer_flags |= URB_ASYNC_UNLINK; */ + dev->read_urb_finished = 0; + usb_submit_urb(dev->interrupt_in_urb, GFP_KERNEL); + /* we ignore failure */ + /* end of fixup for first read */ + + up(&dev->sem); + +exit_no_device: + mutex_unlock(&disconnect_mutex); + dbg(2,"%s : leave, return value %d ", __FUNCTION__, retval); + + return retval; +} + +static int adu_release_internal(struct adu_device *dev) +{ + int retval = 0; + + dbg(2," %s : enter", __FUNCTION__); + + if (dev->udev == NULL) { + /* the device was unplugged before the file was released */ + adu_delete(dev); + goto exit; + } + + /* decrement our usage count for the device */ + --dev->open_count; + dbg(2," %s : open count %d", __FUNCTION__, dev->open_count); + if (dev->open_count <= 0) { + adu_abort_transfers(dev); + dev->open_count = 0; + } + +exit: + dbg(2," %s : leave", __FUNCTION__); + return retval; +} + +static int adu_release(struct inode *inode, struct file *file) +{ + struct adu_device *dev = NULL; + int retval = 0; + + dbg(2," %s : enter", __FUNCTION__); + + if (file == NULL) { + dbg(1," %s : file is NULL", __FUNCTION__); + retval = -ENODEV; + goto exit; + } + + dev = file->private_data; + + if (dev == NULL) { + dbg(1," %s : object is NULL", __FUNCTION__); + retval = -ENODEV; + goto exit; + } + + /* lock our device */ + down(&dev->sem); /* not interruptible */ + + if (dev->open_count <= 0) { + dbg(1," %s : device not opened", __FUNCTION__); + retval = -ENODEV; + goto exit; + } + + /* do the work */ + retval = adu_release_internal(dev); + +exit: + up(&dev->sem); + dbg(2," %s : leave, return value %d", __FUNCTION__, retval); + return retval; +} + +static ssize_t adu_read(struct file *file, __user char *buffer, size_t count, + loff_t *ppos) +{ + struct adu_device *dev; + size_t bytes_read = 0; + size_t bytes_to_read = count; + int i; + int retval = 0; + int timeout = 0; + int should_submit = 0; + unsigned long flags; + DECLARE_WAITQUEUE(wait, current); + + dbg(2," %s : enter, count = %Zd, file=%p", __FUNCTION__, count, file); + + dev = file->private_data; + dbg(2," %s : dev=%p", __FUNCTION__, dev); + /* lock this object */ + if (down_interruptible(&dev->sem)) + return -ERESTARTSYS; + + /* verify that the device wasn't unplugged */ + if (dev->udev == NULL || dev->minor == 0) { + retval = -ENODEV; + err("No device or device unplugged %d", retval); + goto exit; + } + + /* verify that some data was requested */ + if (count == 0) { + dbg(1," %s : read request of 0 bytes", __FUNCTION__); + goto exit; + } + + timeout = COMMAND_TIMEOUT; + dbg(2," %s : about to start looping", __FUNCTION__); + while (bytes_to_read) { + int data_in_secondary = dev->secondary_tail - dev->secondary_head; + dbg(2," %s : while, data_in_secondary=%d, status=%d", + __FUNCTION__, data_in_secondary, + dev->interrupt_in_urb->status); + + if (data_in_secondary) { + /* drain secondary buffer */ + int amount = bytes_to_read < data_in_secondary ? bytes_to_read : data_in_secondary; + i = copy_to_user(buffer, dev->read_buffer_secondary+dev->secondary_head, amount); + if (i < 0) { + retval = -EFAULT; + goto exit; + } + dev->secondary_head += (amount - i); + bytes_read += (amount - i); + bytes_to_read -= (amount - i); + if (i) { + retval = bytes_read ? bytes_read : -EFAULT; + goto exit; + } + } else { + /* we check the primary buffer */ + spin_lock_irqsave (&dev->buflock, flags); + if (dev->read_buffer_length) { + /* we secure access to the primary */ + char *tmp; + dbg(2," %s : swap, read_buffer_length = %d", + __FUNCTION__, dev->read_buffer_length); + tmp = dev->read_buffer_secondary; + dev->read_buffer_secondary = dev->read_buffer_primary; + dev->read_buffer_primary = tmp; + dev->secondary_head = 0; + dev->secondary_tail = dev->read_buffer_length; + dev->read_buffer_length = 0; + spin_unlock_irqrestore(&dev->buflock, flags); + /* we have a free buffer so use it */ + should_submit = 1; + } else { + /* even the primary was empty - we may need to do IO */ + if (dev->interrupt_in_urb->status == -EINPROGRESS) { + /* somebody is doing IO */ + spin_unlock_irqrestore(&dev->buflock, flags); + dbg(2," %s : submitted already", __FUNCTION__); + } else { + /* we must initiate input */ + dbg(2," %s : initiate input", __FUNCTION__); + dev->read_urb_finished = 0; + + usb_fill_int_urb(dev->interrupt_in_urb,dev->udev, + usb_rcvintpipe(dev->udev, + dev->interrupt_in_endpoint->bEndpointAddress), + dev->interrupt_in_buffer, + le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize), + adu_interrupt_in_callback, + dev, + dev->interrupt_in_endpoint->bInterval); + retval = usb_submit_urb(dev->interrupt_in_urb, GFP_KERNEL); + if (!retval) { + spin_unlock_irqrestore(&dev->buflock, flags); + dbg(2," %s : submitted OK", __FUNCTION__); + } else { + if (retval == -ENOMEM) { + retval = bytes_read ? bytes_read : -ENOMEM; + } + spin_unlock_irqrestore(&dev->buflock, flags); + dbg(2," %s : submit failed", __FUNCTION__); + goto exit; + } + } + + /* we wait for I/O to complete */ + set_current_state(TASK_INTERRUPTIBLE); + add_wait_queue(&dev->read_wait, &wait); + if (!dev->read_urb_finished) + timeout = schedule_timeout(COMMAND_TIMEOUT); + else + set_current_state(TASK_RUNNING); + remove_wait_queue(&dev->read_wait, &wait); + + if (timeout <= 0) { + dbg(2," %s : timeout", __FUNCTION__); + retval = bytes_read ? bytes_read : -ETIMEDOUT; + goto exit; + } + + if (signal_pending(current)) { + dbg(2," %s : signal pending", __FUNCTION__); + retval = bytes_read ? bytes_read : -EINTR; + goto exit; + } + } + } + } + + retval = bytes_read; + /* if the primary buffer is empty then use it */ + if (should_submit && !dev->interrupt_in_urb->status==-EINPROGRESS) { + usb_fill_int_urb(dev->interrupt_in_urb,dev->udev, + usb_rcvintpipe(dev->udev, + dev->interrupt_in_endpoint->bEndpointAddress), + dev->interrupt_in_buffer, + le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize), + adu_interrupt_in_callback, + dev, + dev->interrupt_in_endpoint->bInterval); + /* dev->interrupt_in_urb->transfer_flags |= URB_ASYNC_UNLINK; */ + dev->read_urb_finished = 0; + usb_submit_urb(dev->interrupt_in_urb, GFP_KERNEL); + /* we ignore failure */ + } + +exit: + /* unlock the device */ + up(&dev->sem); + + dbg(2," %s : leave, return value %d", __FUNCTION__, retval); + return retval; +} + +static ssize_t adu_write(struct file *file, const __user char *buffer, + size_t count, loff_t *ppos) +{ + struct adu_device *dev; + size_t bytes_written = 0; + size_t bytes_to_write; + size_t buffer_size; + int retval = 0; + int timeout = 0; + + dbg(2," %s : enter, count = %Zd", __FUNCTION__, count); + + dev = file->private_data; + + /* lock this object */ + down_interruptible(&dev->sem); + + /* verify that the device wasn't unplugged */ + if (dev->udev == NULL || dev->minor == 0) { + retval = -ENODEV; + err("No device or device unplugged %d", retval); + goto exit; + } + + /* verify that we actually have some data to write */ + if (count == 0) { + dbg(1," %s : write request of 0 bytes", __FUNCTION__); + goto exit; + } + + + while (count > 0) { + if (dev->interrupt_out_urb->status == -EINPROGRESS) { + timeout = COMMAND_TIMEOUT; + + while (timeout > 0) { + if (signal_pending(current)) { + dbg(1," %s : interrupted", __FUNCTION__); + retval = -EINTR; + goto exit; + } + up(&dev->sem); + timeout = interruptible_sleep_on_timeout(&dev->write_wait, timeout); + down_interruptible(&dev->sem); + if (timeout > 0) { + break; + } + dbg(1," %s : interrupted timeout: %d", __FUNCTION__, timeout); + } + + + dbg(1," %s : final timeout: %d", __FUNCTION__, timeout); + + if (timeout == 0) { + dbg(1, "%s - command timed out.", __FUNCTION__); + retval = -ETIMEDOUT; + goto exit; + } + + dbg(4," %s : in progress, count = %Zd", __FUNCTION__, count); + + } else { + dbg(4," %s : sending, count = %Zd", __FUNCTION__, count); + + /* write the data into interrupt_out_buffer from userspace */ + buffer_size = le16_to_cpu(dev->interrupt_out_endpoint->wMaxPacketSize); + bytes_to_write = count > buffer_size ? buffer_size : count; + dbg(4," %s : buffer_size = %Zd, count = %Zd, bytes_to_write = %Zd", + __FUNCTION__, buffer_size, count, bytes_to_write); + + if (copy_from_user(dev->interrupt_out_buffer, buffer, bytes_to_write) != 0) { + retval = -EFAULT; + goto exit; + } + + /* send off the urb */ + usb_fill_int_urb( + dev->interrupt_out_urb, + dev->udev, + usb_sndintpipe(dev->udev, dev->interrupt_out_endpoint->bEndpointAddress), + dev->interrupt_out_buffer, + bytes_to_write, + adu_interrupt_out_callback, + dev, + dev->interrupt_in_endpoint->bInterval); + /* dev->interrupt_in_urb->transfer_flags |= URB_ASYNC_UNLINK; */ + dev->interrupt_out_urb->actual_length = bytes_to_write; + retval = usb_submit_urb(dev->interrupt_out_urb, GFP_KERNEL); + if (retval < 0) { + err("Couldn't submit interrupt_out_urb %d", retval); + goto exit; + } + + buffer += bytes_to_write; + count -= bytes_to_write; + + bytes_written += bytes_to_write; + } + } + + retval = bytes_written; + +exit: + /* unlock the device */ + up(&dev->sem); + + dbg(2," %s : leave, return value %d", __FUNCTION__, retval); + + return retval; +} + +/* file operations needed when we register this driver */ +static struct file_operations adu_fops = { + .owner = THIS_MODULE, + .read = adu_read, + .write = adu_write, + .open = adu_open, + .release = adu_release, +}; + +/* + * usb class driver info in order to get a minor number from the usb core, + * and to have the device registered with devfs and the driver core + */ +static struct usb_class_driver adu_class = { + .name = "usb/adutux%d", + .fops = &adu_fops, + .minor_base = ADU_MINOR_BASE, +}; + +/** + * adu_probe + * + * Called by the usb core when a new device is connected that it thinks + * this driver might be interested in. + */ +static int adu_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct usb_device *udev = interface_to_usbdev(interface); + struct adu_device *dev = NULL; + struct usb_host_interface *iface_desc; + struct usb_endpoint_descriptor *endpoint; + int retval = -ENODEV; + int in_end_size; + int out_end_size; + int i; + + dbg(2," %s : enter", __FUNCTION__); + + if (udev == NULL) { + dev_err(&interface->dev, "udev is NULL.\n"); + goto exit; + } + + /* allocate memory for our device state and intialize it */ + dev = kzalloc(sizeof(struct adu_device), GFP_KERNEL); + if (dev == NULL) { + dev_err(&interface->dev, "Out of memory\n"); + retval = -ENOMEM; + goto exit; + } + + init_MUTEX(&dev->sem); + spin_lock_init(&dev->buflock); + dev->udev = udev; + init_waitqueue_head(&dev->read_wait); + init_waitqueue_head(&dev->write_wait); + + iface_desc = &interface->altsetting[0]; + + /* set up the endpoint information */ + for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { + endpoint = &iface_desc->endpoint[i].desc; + + if (usb_endpoint_is_int_in(endpoint)) + dev->interrupt_in_endpoint = endpoint; + + if (usb_endpoint_is_int_out(endpoint)) + dev->interrupt_out_endpoint = endpoint; + } + if (dev->interrupt_in_endpoint == NULL) { + dev_err(&interface->dev, "interrupt in endpoint not found\n"); + goto error; + } + if (dev->interrupt_out_endpoint == NULL) { + dev_err(&interface->dev, "interrupt out endpoint not found\n"); + goto error; + } + + in_end_size = le16_to_cpu(dev->interrupt_in_endpoint->wMaxPacketSize); + out_end_size = le16_to_cpu(dev->interrupt_out_endpoint->wMaxPacketSize); + + dev->read_buffer_primary = kmalloc((4 * in_end_size), GFP_KERNEL); + if (!dev->read_buffer_primary) { + dev_err(&interface->dev, "Couldn't allocate read_buffer_primary\n"); + retval = -ENOMEM; + goto error; + } + + /* debug code prime the buffer */ + memset(dev->read_buffer_primary, 'a', in_end_size); + memset(dev->read_buffer_primary + in_end_size, 'b', in_end_size); + memset(dev->read_buffer_primary + (2 * in_end_size), 'c', in_end_size); + memset(dev->read_buffer_primary + (3 * in_end_size), 'd', in_end_size); + + dev->read_buffer_secondary = kmalloc((4 * in_end_size), GFP_KERNEL); + if (!dev->read_buffer_secondary) { + dev_err(&interface->dev, "Couldn't allocate read_buffer_secondary\n"); + retval = -ENOMEM; + goto error; + } + + /* debug code prime the buffer */ + memset(dev->read_buffer_secondary, 'e', in_end_size); + memset(dev->read_buffer_secondary + in_end_size, 'f', in_end_size); + memset(dev->read_buffer_secondary + (2 * in_end_size), 'g', in_end_size); + memset(dev->read_buffer_secondary + (3 * in_end_size), 'h', in_end_size); + + dev->interrupt_in_buffer = kmalloc(in_end_size, GFP_KERNEL); + if (!dev->interrupt_in_buffer) { + dev_err(&interface->dev, "Couldn't allocate interrupt_in_buffer\n"); + goto error; + } + + /* debug code prime the buffer */ + memset(dev->interrupt_in_buffer, 'i', in_end_size); + + dev->interrupt_in_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!dev->interrupt_in_urb) { + dev_err(&interface->dev, "Couldn't allocate interrupt_in_urb\n"); + goto error; + } + dev->interrupt_out_buffer = kmalloc(out_end_size, GFP_KERNEL); + if (!dev->interrupt_out_buffer) { + dev_err(&interface->dev, "Couldn't allocate interrupt_out_buffer\n"); + goto error; + } + dev->interrupt_out_urb = usb_alloc_urb(0, GFP_KERNEL); + if (!dev->interrupt_out_urb) { + dev_err(&interface->dev, "Couldn't allocate interrupt_out_urb\n"); + goto error; + } + + if (!usb_string(udev, udev->descriptor.iSerialNumber, dev->serial_number, + sizeof(dev->serial_number))) { + dev_err(&interface->dev, "Could not retrieve serial number\n"); + goto error; + } + dbg(2," %s : serial_number=%s", __FUNCTION__, dev->serial_number); + + /* we can register the device now, as it is ready */ + usb_set_intfdata(interface, dev); + + retval = usb_register_dev(interface, &adu_class); + + if (retval) { + /* something prevented us from registering this driver */ + dev_err(&interface->dev, "Not able to get a minor for this device.\n"); + usb_set_intfdata(interface, NULL); + goto error; + } + + dev->minor = interface->minor; + + /* let the user know what node this device is now attached to */ + dev_info(&interface->dev, "ADU%d %s now attached to /dev/usb/adutux%d", + udev->descriptor.idProduct, dev->serial_number, + (dev->minor - ADU_MINOR_BASE)); +exit: + dbg(2," %s : leave, return value %p (dev)", __FUNCTION__, dev); + + return retval; + +error: + adu_delete(dev); + return retval; +} + +/** + * adu_disconnect + * + * Called by the usb core when the device is removed from the system. + */ +static void adu_disconnect(struct usb_interface *interface) +{ + struct adu_device *dev; + int minor; + + dbg(2," %s : enter", __FUNCTION__); + + mutex_lock(&disconnect_mutex); /* not interruptible */ + + dev = usb_get_intfdata(interface); + usb_set_intfdata(interface, NULL); + + down(&dev->sem); /* not interruptible */ + + minor = dev->minor; + + /* give back our minor */ + usb_deregister_dev(interface, &adu_class); + dev->minor = 0; + + /* if the device is not opened, then we clean up right now */ + dbg(2," %s : open count %d", __FUNCTION__, dev->open_count); + if (!dev->open_count) { + up(&dev->sem); + adu_delete(dev); + } else { + dev->udev = NULL; + up(&dev->sem); + } + + mutex_unlock(&disconnect_mutex); + + dev_info(&interface->dev, "ADU device adutux%d now disconnected", + (minor - ADU_MINOR_BASE)); + + dbg(2," %s : leave", __FUNCTION__); +} + +/* usb specific object needed to register this driver with the usb subsystem */ +static struct usb_driver adu_driver = { + .name = "adutux", + .probe = adu_probe, + .disconnect = adu_disconnect, + .id_table = device_table, +}; + +static int __init adu_init(void) +{ + int result; + + dbg(2," %s : enter", __FUNCTION__); + + /* register this driver with the USB subsystem */ + result = usb_register(&adu_driver); + if (result < 0) { + err("usb_register failed for the "__FILE__" driver. " + "Error number %d", result); + goto exit; + } + + info("adutux " DRIVER_DESC " " DRIVER_VERSION); + info("adutux is an experimental driver. Use at your own risk"); + +exit: + dbg(2," %s : leave, return value %d", __FUNCTION__, result); + + return result; +} + +static void __exit adu_exit(void) +{ + dbg(2," %s : enter", __FUNCTION__); + /* deregister this driver with the USB subsystem */ + usb_deregister(&adu_driver); + dbg(2," %s : leave", __FUNCTION__); +} + +module_init(adu_init); +module_exit(adu_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL");
diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c index 1fef36e..4fd2110 100644 --- a/drivers/usb/misc/auerswald.c +++ b/drivers/usb/misc/auerswald.c
@@ -806,7 +806,7 @@ 0 Initial, OK -EINPROGRESS during submission until end -ENOENT if urb is unlinked --ETIMEDOUT Transfer timed out, NAK +-ETIME Device did not respond -ENOMEM Memory Overflow -ENODEV Specified USB-device or bus doesn't exist -ENXIO URB already queued @@ -832,7 +832,7 @@ { switch (status) { case 0: - case -ETIMEDOUT: + case -ETIME: case -EOVERFLOW: case -EAGAIN: case -EPIPE: @@ -1858,7 +1858,7 @@ /*----------------------------------------------------------------------*/ /* File operation structure */ -static struct file_operations auerswald_fops = +static const struct file_operations auerswald_fops = { .owner = THIS_MODULE, .llseek = no_llseek,
diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c index 9c46746..b63b5f3 100644 --- a/drivers/usb/misc/cypress_cy7c63.c +++ b/drivers/usb/misc/cypress_cy7c63.c
@@ -209,7 +209,7 @@ dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (dev == NULL) { dev_err(&interface->dev, "Out of memory!\n"); - goto error; + goto error_mem; } dev->udev = usb_get_dev(interface_to_usbdev(interface)); @@ -218,15 +218,26 @@ usb_set_intfdata(interface, dev); /* create device attribute files */ - device_create_file(&interface->dev, &dev_attr_port0); - device_create_file(&interface->dev, &dev_attr_port1); + retval = device_create_file(&interface->dev, &dev_attr_port0); + if (retval) + goto error; + retval = device_create_file(&interface->dev, &dev_attr_port1); + if (retval) + goto error; /* let the user know that the device is now attached */ dev_info(&interface->dev, "Cypress CY7C63xxx device now attached\n"); + return 0; - retval = 0; error: + device_remove_file(&interface->dev, &dev_attr_port0); + device_remove_file(&interface->dev, &dev_attr_port1); + usb_set_intfdata(interface, NULL); + usb_put_dev(dev->udev); + kfree(dev); + +error_mem: return retval; }
diff --git a/drivers/usb/misc/cytherm.c b/drivers/usb/misc/cytherm.c index b20bec4..04e87ac 100644 --- a/drivers/usb/misc/cytherm.c +++ b/drivers/usb/misc/cytherm.c
@@ -353,7 +353,7 @@ dev = kzalloc (sizeof(struct usb_cytherm), GFP_KERNEL); if (dev == NULL) { dev_err (&interface->dev, "Out of memory\n"); - goto error; + goto error_mem; } dev->udev = usb_get_dev(udev); @@ -362,18 +362,35 @@ dev->brightness = 0xFF; - device_create_file(&interface->dev, &dev_attr_brightness); - device_create_file(&interface->dev, &dev_attr_temp); - device_create_file(&interface->dev, &dev_attr_button); - device_create_file(&interface->dev, &dev_attr_port0); - device_create_file(&interface->dev, &dev_attr_port1); + retval = device_create_file(&interface->dev, &dev_attr_brightness); + if (retval) + goto error; + retval = device_create_file(&interface->dev, &dev_attr_temp); + if (retval) + goto error; + retval = device_create_file(&interface->dev, &dev_attr_button); + if (retval) + goto error; + retval = device_create_file(&interface->dev, &dev_attr_port0); + if (retval) + goto error; + retval = device_create_file(&interface->dev, &dev_attr_port1); + if (retval) + goto error; - dev_info (&interface->dev, + dev_info (&interface->dev, "Cypress thermometer device now attached\n"); return 0; - - error: +error: + device_remove_file(&interface->dev, &dev_attr_brightness); + device_remove_file(&interface->dev, &dev_attr_temp); + device_remove_file(&interface->dev, &dev_attr_button); + device_remove_file(&interface->dev, &dev_attr_port0); + device_remove_file(&interface->dev, &dev_attr_port1); + usb_set_intfdata (interface, NULL); + usb_put_dev(dev->udev); kfree(dev); +error_mem: return retval; }
diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c new file mode 100644 index 0000000..b88a094 --- /dev/null +++ b/drivers/usb/misc/ftdi-elan.c
@@ -0,0 +1,2809 @@ +/* +* USB FTDI client driver for Elan Digital Systems's Uxxx adapters +* +* Copyright(C) 2006 Elan Digital Systems Limited +* http://www.elandigitalsystems.com +* +* Author and Maintainer - Tony Olech - Elan Digital Systems +* tony.olech@elandigitalsystems.com +* +* This program is free software;you can redistribute it and/or +* modify it under the terms of the GNU General Public License as +* published by the Free Software Foundation, version 2. +* +* +* This driver was written by Tony Olech(tony.olech@elandigitalsystems.com) +* based on various USB client drivers in the 2.6.15 linux kernel +* with constant reference to the 3rd Edition of Linux Device Drivers +* published by O'Reilly +* +* The U132 adapter is a USB to CardBus adapter specifically designed +* for PC cards that contain an OHCI host controller. Typical PC cards +* are the Orange Mobile 3G Option GlobeTrotter Fusion card. +* +* The U132 adapter will *NOT *work with PC cards that do not contain +* an OHCI controller. A simple way to test whether a PC card has an +* OHCI controller as an interface is to insert the PC card directly +* into a laptop(or desktop) with a CardBus slot and if "lspci" shows +* a new USB controller and "lsusb -v" shows a new OHCI Host Controller +* then there is a good chance that the U132 adapter will support the +* PC card.(you also need the specific client driver for the PC card) +* +* Please inform the Author and Maintainer about any PC cards that +* contain OHCI Host Controller and work when directly connected to +* an embedded CardBus slot but do not work when they are connected +* via an ELAN U132 adapter. +* +*/ +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/ioctl.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/kref.h> +#include <asm/uaccess.h> +#include <linux/usb.h> +#include <linux/workqueue.h> +#include <linux/platform_device.h> +MODULE_AUTHOR("Tony Olech"); +MODULE_DESCRIPTION("FTDI ELAN driver"); +MODULE_LICENSE("GPL"); +#define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444) +extern struct platform_driver u132_platform_driver; +static struct workqueue_struct *status_queue; +static struct workqueue_struct *command_queue; +static struct workqueue_struct *respond_queue; +/* +* ftdi_module_lock exists to protect access to global variables +* +*/ +static struct semaphore ftdi_module_lock; +static int ftdi_instances = 0; +static struct list_head ftdi_static_list; +/* +* end of the global variables protected by ftdi_module_lock +*/ +#include "usb_u132.h" +#define TD_DEVNOTRESP 5 +/* Define these values to match your devices*/ +#define USB_FTDI_ELAN_VENDOR_ID 0x0403 +#define USB_FTDI_ELAN_PRODUCT_ID 0xd6ea +/* table of devices that work with this driver*/ +static struct usb_device_id ftdi_elan_table[] = { + {USB_DEVICE(USB_FTDI_ELAN_VENDOR_ID, USB_FTDI_ELAN_PRODUCT_ID)}, + { /* Terminating entry */ } +}; + +MODULE_DEVICE_TABLE(usb, ftdi_elan_table); +/* only the jtag(firmware upgrade device) interface requires +* a device file and corresponding minor number, but the +* interface is created unconditionally - I suppose it could +* be configured or not according to a module parameter. +* But since we(now) require one interface per device, +* and since it unlikely that a normal installation would +* require more than a couple of elan-ftdi devices, 8 seems +* like a reasonable limit to have here, and if someone +* really requires more than 8 devices, then they can frig the +* code and recompile +*/ +#define USB_FTDI_ELAN_MINOR_BASE 192 +#define COMMAND_BITS 5 +#define COMMAND_SIZE (1<<COMMAND_BITS) +#define COMMAND_MASK (COMMAND_SIZE-1) +struct u132_command { + u8 header; + u16 length; + u8 address; + u8 width; + u32 value; + int follows; + void *buffer; +}; +#define RESPOND_BITS 5 +#define RESPOND_SIZE (1<<RESPOND_BITS) +#define RESPOND_MASK (RESPOND_SIZE-1) +struct u132_respond { + u8 header; + u8 address; + u32 *value; + int *result; + struct completion wait_completion; +}; +struct u132_target { + void *endp; + struct urb *urb; + int toggle_bits; + int error_count; + int condition_code; + int repeat_number; + int halted; + int skipped; + int actual; + int non_null; + int active; + int abandoning; + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, + int repeat_number, int halted, int skipped, int actual, + int non_null); +}; +/* Structure to hold all of our device specific stuff*/ +struct usb_ftdi { + struct list_head ftdi_list; + struct semaphore u132_lock; + int command_next; + int command_head; + struct u132_command command[COMMAND_SIZE]; + int respond_next; + int respond_head; + struct u132_respond respond[RESPOND_SIZE]; + struct u132_target target[4]; + char device_name[16]; + unsigned synchronized:1; + unsigned enumerated:1; + unsigned registered:1; + unsigned initialized:1; + unsigned card_ejected:1; + int function; + int sequence_num; + int disconnected; + int gone_away; + int stuck_status; + int status_queue_delay; + struct semaphore sw_lock; + struct usb_device *udev; + struct usb_interface *interface; + struct usb_class_driver *class; + struct work_struct status_work; + struct work_struct command_work; + struct work_struct respond_work; + struct u132_platform_data platform_data; + struct resource resources[0]; + struct platform_device platform_dev; + unsigned char *bulk_in_buffer; + size_t bulk_in_size; + size_t bulk_in_last; + size_t bulk_in_left; + __u8 bulk_in_endpointAddr; + __u8 bulk_out_endpointAddr; + struct kref kref; + u32 controlreg; + u8 response[4 + 1024]; + int expected; + int recieved; + int ed_found; +}; +#define kref_to_usb_ftdi(d) container_of(d, struct usb_ftdi, kref) +#define platform_device_to_usb_ftdi(d) container_of(d, struct usb_ftdi, \ + platform_dev) +static struct usb_driver ftdi_elan_driver; +static void ftdi_elan_delete(struct kref *kref) +{ + struct usb_ftdi *ftdi = kref_to_usb_ftdi(kref); + dev_warn(&ftdi->udev->dev, "FREEING ftdi=%p\n", ftdi); + usb_put_dev(ftdi->udev); + ftdi->disconnected += 1; + down(&ftdi_module_lock); + list_del_init(&ftdi->ftdi_list); + ftdi_instances -= 1; + up(&ftdi_module_lock); + kfree(ftdi->bulk_in_buffer); + ftdi->bulk_in_buffer = NULL; +} + +static void ftdi_elan_put_kref(struct usb_ftdi *ftdi) +{ + kref_put(&ftdi->kref, ftdi_elan_delete); +} + +static void ftdi_elan_get_kref(struct usb_ftdi *ftdi) +{ + kref_get(&ftdi->kref); +} + +static void ftdi_elan_init_kref(struct usb_ftdi *ftdi) +{ + kref_init(&ftdi->kref); +} + +static void ftdi_status_requeue_work(struct usb_ftdi *ftdi, unsigned int delta) +{ + if (delta > 0) { + if (queue_delayed_work(status_queue, &ftdi->status_work, delta)) + return; + } else if (queue_work(status_queue, &ftdi->status_work)) + return; + kref_put(&ftdi->kref, ftdi_elan_delete); + return; +} + +static void ftdi_status_queue_work(struct usb_ftdi *ftdi, unsigned int delta) +{ + if (delta > 0) { + if (queue_delayed_work(status_queue, &ftdi->status_work, delta)) + kref_get(&ftdi->kref); + } else if (queue_work(status_queue, &ftdi->status_work)) + kref_get(&ftdi->kref); + return; +} + +static void ftdi_status_cancel_work(struct usb_ftdi *ftdi) +{ + if (cancel_delayed_work(&ftdi->status_work)) + kref_put(&ftdi->kref, ftdi_elan_delete); +} + +static void ftdi_command_requeue_work(struct usb_ftdi *ftdi, unsigned int delta) +{ + if (delta > 0) { + if (queue_delayed_work(command_queue, &ftdi->command_work, + delta)) + return; + } else if (queue_work(command_queue, &ftdi->command_work)) + return; + kref_put(&ftdi->kref, ftdi_elan_delete); + return; +} + +static void ftdi_command_queue_work(struct usb_ftdi *ftdi, unsigned int delta) +{ + if (delta > 0) { + if (queue_delayed_work(command_queue, &ftdi->command_work, + delta)) + kref_get(&ftdi->kref); + } else if (queue_work(command_queue, &ftdi->command_work)) + kref_get(&ftdi->kref); + return; +} + +static void ftdi_command_cancel_work(struct usb_ftdi *ftdi) +{ + if (cancel_delayed_work(&ftdi->command_work)) + kref_put(&ftdi->kref, ftdi_elan_delete); +} + +static void ftdi_response_requeue_work(struct usb_ftdi *ftdi, + unsigned int delta) +{ + if (delta > 0) { + if (queue_delayed_work(respond_queue, &ftdi->respond_work, + delta)) + return; + } else if (queue_work(respond_queue, &ftdi->respond_work)) + return; + kref_put(&ftdi->kref, ftdi_elan_delete); + return; +} + +static void ftdi_respond_queue_work(struct usb_ftdi *ftdi, unsigned int delta) +{ + if (delta > 0) { + if (queue_delayed_work(respond_queue, &ftdi->respond_work, + delta)) + kref_get(&ftdi->kref); + } else if (queue_work(respond_queue, &ftdi->respond_work)) + kref_get(&ftdi->kref); + return; +} + +static void ftdi_response_cancel_work(struct usb_ftdi *ftdi) +{ + if (cancel_delayed_work(&ftdi->respond_work)) + kref_put(&ftdi->kref, ftdi_elan_delete); +} + +void ftdi_elan_gone_away(struct platform_device *pdev) +{ + struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); + ftdi->gone_away += 1; + ftdi_elan_put_kref(ftdi); +} + + +EXPORT_SYMBOL_GPL(ftdi_elan_gone_away); +void ftdi_release_platform_dev(struct device *dev) +{ + dev->parent = NULL; +} + +static void ftdi_elan_do_callback(struct usb_ftdi *ftdi, + struct u132_target *target, u8 *buffer, int length); +static void ftdi_elan_kick_command_queue(struct usb_ftdi *ftdi); +static void ftdi_elan_kick_respond_queue(struct usb_ftdi *ftdi); +static int ftdi_elan_setupOHCI(struct usb_ftdi *ftdi); +static int ftdi_elan_checkingPCI(struct usb_ftdi *ftdi); +static int ftdi_elan_enumeratePCI(struct usb_ftdi *ftdi); +static int ftdi_elan_synchronize(struct usb_ftdi *ftdi); +static int ftdi_elan_stuck_waiting(struct usb_ftdi *ftdi); +static int ftdi_elan_command_engine(struct usb_ftdi *ftdi); +static int ftdi_elan_respond_engine(struct usb_ftdi *ftdi); +static int ftdi_elan_hcd_init(struct usb_ftdi *ftdi) +{ + int result; + if (ftdi->platform_dev.dev.parent) + return -EBUSY; + ftdi_elan_get_kref(ftdi); + ftdi->platform_data.potpg = 100; + ftdi->platform_data.reset = NULL; + ftdi->platform_dev.id = ftdi->sequence_num; + ftdi->platform_dev.resource = ftdi->resources; + ftdi->platform_dev.num_resources = ARRAY_SIZE(ftdi->resources); + ftdi->platform_dev.dev.platform_data = &ftdi->platform_data; + ftdi->platform_dev.dev.parent = NULL; + ftdi->platform_dev.dev.release = ftdi_release_platform_dev; + ftdi->platform_dev.dev.dma_mask = NULL; + snprintf(ftdi->device_name, sizeof(ftdi->device_name), "u132_hcd"); + ftdi->platform_dev.name = ftdi->device_name; + dev_info(&ftdi->udev->dev, "requesting module '%s'\n", "u132_hcd"); + request_module("u132_hcd"); + dev_info(&ftdi->udev->dev, "registering '%s'\n", + ftdi->platform_dev.name); + result = platform_device_register(&ftdi->platform_dev); + return result; +} + +static void ftdi_elan_abandon_completions(struct usb_ftdi *ftdi) +{ + down(&ftdi->u132_lock); + while (ftdi->respond_next > ftdi->respond_head) { + struct u132_respond *respond = &ftdi->respond[RESPOND_MASK & + ftdi->respond_head++]; + *respond->result = -ESHUTDOWN; + *respond->value = 0; + complete(&respond->wait_completion); + } up(&ftdi->u132_lock); +} + +static void ftdi_elan_abandon_targets(struct usb_ftdi *ftdi) +{ + int ed_number = 4; + down(&ftdi->u132_lock); + while (ed_number-- > 0) { + struct u132_target *target = &ftdi->target[ed_number]; + if (target->active == 1) { + target->condition_code = TD_DEVNOTRESP; + up(&ftdi->u132_lock); + ftdi_elan_do_callback(ftdi, target, NULL, 0); + down(&ftdi->u132_lock); + } + } + ftdi->recieved = 0; + ftdi->expected = 4; + ftdi->ed_found = 0; + up(&ftdi->u132_lock); +} + +static void ftdi_elan_flush_targets(struct usb_ftdi *ftdi) +{ + int ed_number = 4; + down(&ftdi->u132_lock); + while (ed_number-- > 0) { + struct u132_target *target = &ftdi->target[ed_number]; + target->abandoning = 1; + wait_1:if (target->active == 1) { + int command_size = ftdi->command_next - + ftdi->command_head; + if (command_size < COMMAND_SIZE) { + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + command->header = 0x80 | (ed_number << 5) | 0x4; + command->length = 0x00; + command->address = 0x00; + command->width = 0x00; + command->follows = 0; + command->value = 0; + command->buffer = &command->value; + ftdi->command_next += 1; + ftdi_elan_kick_command_queue(ftdi); + } else { + up(&ftdi->u132_lock); + msleep(100); + down(&ftdi->u132_lock); + goto wait_1; + } + } + wait_2:if (target->active == 1) { + int command_size = ftdi->command_next - + ftdi->command_head; + if (command_size < COMMAND_SIZE) { + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + command->header = 0x90 | (ed_number << 5); + command->length = 0x00; + command->address = 0x00; + command->width = 0x00; + command->follows = 0; + command->value = 0; + command->buffer = &command->value; + ftdi->command_next += 1; + ftdi_elan_kick_command_queue(ftdi); + } else { + up(&ftdi->u132_lock); + msleep(100); + down(&ftdi->u132_lock); + goto wait_2; + } + } + } + ftdi->recieved = 0; + ftdi->expected = 4; + ftdi->ed_found = 0; + up(&ftdi->u132_lock); +} + +static void ftdi_elan_cancel_targets(struct usb_ftdi *ftdi) +{ + int ed_number = 4; + down(&ftdi->u132_lock); + while (ed_number-- > 0) { + struct u132_target *target = &ftdi->target[ed_number]; + target->abandoning = 1; + wait:if (target->active == 1) { + int command_size = ftdi->command_next - + ftdi->command_head; + if (command_size < COMMAND_SIZE) { + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + command->header = 0x80 | (ed_number << 5) | 0x4; + command->length = 0x00; + command->address = 0x00; + command->width = 0x00; + command->follows = 0; + command->value = 0; + command->buffer = &command->value; + ftdi->command_next += 1; + ftdi_elan_kick_command_queue(ftdi); + } else { + up(&ftdi->u132_lock); + msleep(100); + down(&ftdi->u132_lock); + goto wait; + } + } + } + ftdi->recieved = 0; + ftdi->expected = 4; + ftdi->ed_found = 0; + up(&ftdi->u132_lock); +} + +static void ftdi_elan_kick_command_queue(struct usb_ftdi *ftdi) +{ + ftdi_command_queue_work(ftdi, 0); + return; +} + +static void ftdi_elan_command_work(void *data) +{ + struct usb_ftdi *ftdi = data; + if (ftdi->disconnected > 0) { + ftdi_elan_put_kref(ftdi); + return; + } else { + int retval = ftdi_elan_command_engine(ftdi); + if (retval == -ESHUTDOWN) { + ftdi->disconnected += 1; + } else if (retval == -ENODEV) { + ftdi->disconnected += 1; + } else if (retval) + dev_err(&ftdi->udev->dev, "command error %d\n", retval); + ftdi_command_requeue_work(ftdi, msecs_to_jiffies(10)); + return; + } +} + +static void ftdi_elan_kick_respond_queue(struct usb_ftdi *ftdi) +{ + ftdi_respond_queue_work(ftdi, 0); + return; +} + +static void ftdi_elan_respond_work(void *data) +{ + struct usb_ftdi *ftdi = data; + if (ftdi->disconnected > 0) { + ftdi_elan_put_kref(ftdi); + return; + } else { + int retval = ftdi_elan_respond_engine(ftdi); + if (retval == 0) { + } else if (retval == -ESHUTDOWN) { + ftdi->disconnected += 1; + } else if (retval == -ENODEV) { + ftdi->disconnected += 1; + } else if (retval == -ENODEV) { + ftdi->disconnected += 1; + } else if (retval == -EILSEQ) { + ftdi->disconnected += 1; + } else { + ftdi->disconnected += 1; + dev_err(&ftdi->udev->dev, "respond error %d\n", retval); + } + if (ftdi->disconnected > 0) { + ftdi_elan_abandon_completions(ftdi); + ftdi_elan_abandon_targets(ftdi); + } + ftdi_response_requeue_work(ftdi, msecs_to_jiffies(10)); + return; + } +} + + +/* +* the sw_lock is initially held and will be freed +* after the FTDI has been synchronized +* +*/ +static void ftdi_elan_status_work(void *data) +{ + struct usb_ftdi *ftdi = data; + int work_delay_in_msec = 0; + if (ftdi->disconnected > 0) { + ftdi_elan_put_kref(ftdi); + return; + } else if (ftdi->synchronized == 0) { + down(&ftdi->sw_lock); + if (ftdi_elan_synchronize(ftdi) == 0) { + ftdi->synchronized = 1; + ftdi_command_queue_work(ftdi, 1); + ftdi_respond_queue_work(ftdi, 1); + up(&ftdi->sw_lock); + work_delay_in_msec = 100; + } else { + dev_err(&ftdi->udev->dev, "synchronize failed\n"); + up(&ftdi->sw_lock); + work_delay_in_msec = 10 *1000; + } + } else if (ftdi->stuck_status > 0) { + if (ftdi_elan_stuck_waiting(ftdi) == 0) { + ftdi->stuck_status = 0; + ftdi->synchronized = 0; + } else if ((ftdi->stuck_status++ % 60) == 1) { + dev_err(&ftdi->udev->dev, "WRONG type of card inserted " + "- please remove\n"); + } else + dev_err(&ftdi->udev->dev, "WRONG type of card inserted " + "- checked %d times\n", ftdi->stuck_status); + work_delay_in_msec = 100; + } else if (ftdi->enumerated == 0) { + if (ftdi_elan_enumeratePCI(ftdi) == 0) { + ftdi->enumerated = 1; + work_delay_in_msec = 250; + } else + work_delay_in_msec = 1000; + } else if (ftdi->initialized == 0) { + if (ftdi_elan_setupOHCI(ftdi) == 0) { + ftdi->initialized = 1; + work_delay_in_msec = 500; + } else { + dev_err(&ftdi->udev->dev, "initialized failed - trying " + "again in 10 seconds\n"); + work_delay_in_msec = 10 *1000; + } + } else if (ftdi->registered == 0) { + work_delay_in_msec = 10; + if (ftdi_elan_hcd_init(ftdi) == 0) { + ftdi->registered = 1; + } else + dev_err(&ftdi->udev->dev, "register failed\n"); + work_delay_in_msec = 250; + } else { + if (ftdi_elan_checkingPCI(ftdi) == 0) { + work_delay_in_msec = 250; + } else if (ftdi->controlreg & 0x00400000) { + if (ftdi->gone_away > 0) { + dev_err(&ftdi->udev->dev, "PCI device eject con" + "firmed platform_dev.dev.parent=%p plat" + "form_dev.dev=%p\n", + ftdi->platform_dev.dev.parent, + &ftdi->platform_dev.dev); + platform_device_unregister(&ftdi->platform_dev); + ftdi->platform_dev.dev.parent = NULL; + ftdi->registered = 0; + ftdi->enumerated = 0; + ftdi->card_ejected = 0; + ftdi->initialized = 0; + ftdi->gone_away = 0; + } else + ftdi_elan_flush_targets(ftdi); + work_delay_in_msec = 250; + } else { + dev_err(&ftdi->udev->dev, "PCI device has disappeared\n" + ); + ftdi_elan_cancel_targets(ftdi); + work_delay_in_msec = 500; + ftdi->enumerated = 0; + ftdi->initialized = 0; + } + } + if (ftdi->disconnected > 0) { + ftdi_elan_put_kref(ftdi); + return; + } else { + ftdi_status_requeue_work(ftdi, + msecs_to_jiffies(work_delay_in_msec)); + return; + } +} + + +/* +* file_operations for the jtag interface +* +* the usage count for the device is incremented on open() +* and decremented on release() +*/ +static int ftdi_elan_open(struct inode *inode, struct file *file) +{ + int subminor = iminor(inode); + struct usb_interface *interface = usb_find_interface(&ftdi_elan_driver, + subminor); + if (!interface) { + printk(KERN_ERR "can't find device for minor %d\n", subminor); + return -ENODEV; + } else { + struct usb_ftdi *ftdi = usb_get_intfdata(interface); + if (!ftdi) { + return -ENODEV; + } else { + if (down_interruptible(&ftdi->sw_lock)) { + return -EINTR; + } else { + ftdi_elan_get_kref(ftdi); + file->private_data = ftdi; + return 0; + } + } + } +} + +static int ftdi_elan_release(struct inode *inode, struct file *file) +{ + struct usb_ftdi *ftdi = (struct usb_ftdi *)file->private_data; + if (ftdi == NULL) + return -ENODEV; + up(&ftdi->sw_lock); /* decrement the count on our device */ + ftdi_elan_put_kref(ftdi); + return 0; +} + + +#define FTDI_ELAN_IOC_MAGIC 0xA1 +#define FTDI_ELAN_IOCDEBUG _IOC(_IOC_WRITE, FTDI_ELAN_IOC_MAGIC, 1, 132) +static int ftdi_elan_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + switch (cmd) { + case FTDI_ELAN_IOCDEBUG:{ + char line[132]; + int size = strncpy_from_user(line, + (const char __user *)arg, sizeof(line)); + if (size < 0) { + return -EINVAL; + } else { + printk(KERN_ERR "TODO: ioctl %s\n", line); + return 0; + } + } + default: + return -EFAULT; + } +} + + +/* +* +* blocking bulk reads are used to get data from the device +* +*/ +static ssize_t ftdi_elan_read(struct file *file, char __user *buffer, + size_t count, loff_t *ppos) +{ + char data[30 *3 + 4]; + char *d = data; + int m = (sizeof(data) - 1) / 3; + int bytes_read = 0; + int retry_on_empty = 10; + int retry_on_timeout = 5; + struct usb_ftdi *ftdi = (struct usb_ftdi *)file->private_data; + if (ftdi->disconnected > 0) { + return -ENODEV; + } + data[0] = 0; + have:if (ftdi->bulk_in_left > 0) { + if (count-- > 0) { + char *p = ++ftdi->bulk_in_last + ftdi->bulk_in_buffer; + ftdi->bulk_in_left -= 1; + if (bytes_read < m) { + d += sprintf(d, " %02X", 0x000000FF & *p); + } else if (bytes_read > m) { + } else + d += sprintf(d, " .."); + if (copy_to_user(buffer++, p, 1)) { + return -EFAULT; + } else { + bytes_read += 1; + goto have; + } + } else + return bytes_read; + } + more:if (count > 0) { + int packet_bytes = 0; + int retval = usb_bulk_msg(ftdi->udev, + usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), + ftdi->bulk_in_buffer, ftdi->bulk_in_size, + &packet_bytes, msecs_to_jiffies(50)); + if (packet_bytes > 2) { + ftdi->bulk_in_left = packet_bytes - 2; + ftdi->bulk_in_last = 1; + goto have; + } else if (retval == -ETIMEDOUT) { + if (retry_on_timeout-- > 0) { + goto more; + } else if (bytes_read > 0) { + return bytes_read; + } else + return retval; + } else if (retval == 0) { + if (retry_on_empty-- > 0) { + goto more; + } else + return bytes_read; + } else + return retval; + } else + return bytes_read; +} + +static void ftdi_elan_write_bulk_callback(struct urb *urb, struct pt_regs *regs) +{ + struct usb_ftdi *ftdi = (struct usb_ftdi *)urb->context; + if (urb->status && !(urb->status == -ENOENT || urb->status == + -ECONNRESET || urb->status == -ESHUTDOWN)) { + dev_err(&ftdi->udev->dev, "urb=%p write bulk status received: %" + "d\n", urb, urb->status); + } + usb_buffer_free(urb->dev, urb->transfer_buffer_length, + urb->transfer_buffer, urb->transfer_dma); +} + +static int fill_buffer_with_all_queued_commands(struct usb_ftdi *ftdi, + char *buf, int command_size, int total_size) +{ + int ed_commands = 0; + int b = 0; + int I = command_size; + int i = ftdi->command_head; + while (I-- > 0) { + struct u132_command *command = &ftdi->command[COMMAND_MASK & + i++]; + int F = command->follows; + u8 *f = command->buffer; + if (command->header & 0x80) { + ed_commands |= 1 << (0x3 & (command->header >> 5)); + } + buf[b++] = command->header; + buf[b++] = (command->length >> 0) & 0x00FF; + buf[b++] = (command->length >> 8) & 0x00FF; + buf[b++] = command->address; + buf[b++] = command->width; + while (F-- > 0) { + buf[b++] = *f++; + } + } + return ed_commands; +} + +static int ftdi_elan_total_command_size(struct usb_ftdi *ftdi, int command_size) +{ + int total_size = 0; + int I = command_size; + int i = ftdi->command_head; + while (I-- > 0) { + struct u132_command *command = &ftdi->command[COMMAND_MASK & + i++]; + total_size += 5 + command->follows; + } return total_size; +} + +static int ftdi_elan_command_engine(struct usb_ftdi *ftdi) +{ + int retval; + char *buf; + int ed_commands; + int total_size; + struct urb *urb; + int command_size = ftdi->command_next - ftdi->command_head; + if (command_size == 0) + return 0; + total_size = ftdi_elan_total_command_size(ftdi, command_size); + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) { + dev_err(&ftdi->udev->dev, "could not get a urb to write %d comm" + "ands totaling %d bytes to the Uxxx\n", command_size, + total_size); + return -ENOMEM; + } + buf = usb_buffer_alloc(ftdi->udev, total_size, GFP_KERNEL, + &urb->transfer_dma); + if (!buf) { + dev_err(&ftdi->udev->dev, "could not get a buffer to write %d c" + "ommands totaling %d bytes to the Uxxx\n", command_size, + total_size); + usb_free_urb(urb); + return -ENOMEM; + } + ed_commands = fill_buffer_with_all_queued_commands(ftdi, buf, + command_size, total_size); + usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev, + ftdi->bulk_out_endpointAddr), buf, total_size, + ftdi_elan_write_bulk_callback, ftdi); + urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + if (ed_commands) { + char diag[40 *3 + 4]; + char *d = diag; + int m = total_size; + u8 *c = buf; + int s = (sizeof(diag) - 1) / 3; + diag[0] = 0; + while (s-- > 0 && m-- > 0) { + if (s > 0 || m == 0) { + d += sprintf(d, " %02X", *c++); + } else + d += sprintf(d, " .."); + } + } + retval = usb_submit_urb(urb, GFP_KERNEL); + if (retval) { + dev_err(&ftdi->udev->dev, "failed %d to submit urb %p to write " + "%d commands totaling %d bytes to the Uxxx\n", retval, + urb, command_size, total_size); + usb_buffer_free(ftdi->udev, total_size, buf, urb->transfer_dma); + usb_free_urb(urb); + return retval; + } + usb_free_urb(urb); /* release our reference to this urb, + the USB core will eventually free it entirely */ + ftdi->command_head += command_size; + ftdi_elan_kick_respond_queue(ftdi); + return 0; +} + +static void ftdi_elan_do_callback(struct usb_ftdi *ftdi, + struct u132_target *target, u8 *buffer, int length) +{ + struct urb *urb = target->urb; + int halted = target->halted; + int skipped = target->skipped; + int actual = target->actual; + int non_null = target->non_null; + int toggle_bits = target->toggle_bits; + int error_count = target->error_count; + int condition_code = target->condition_code; + int repeat_number = target->repeat_number; + void (*callback) (void *, struct urb *, u8 *, int, int, int, int, int, + int, int, int, int) = target->callback; + target->active -= 1; + target->callback = NULL; + (*callback) (target->endp, urb, buffer, length, toggle_bits, + error_count, condition_code, repeat_number, halted, skipped, + actual, non_null); +} + +static char *have_ed_set_response(struct usb_ftdi *ftdi, + struct u132_target *target, u16 ed_length, int ed_number, int ed_type, + char *b) +{ + int payload = (ed_length >> 0) & 0x07FF; + down(&ftdi->u132_lock); + target->actual = 0; + target->non_null = (ed_length >> 15) & 0x0001; + target->repeat_number = (ed_length >> 11) & 0x000F; + if (ed_type == 0x02) { + if (payload == 0 || target->abandoning > 0) { + target->abandoning = 0; + up(&ftdi->u132_lock); + ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, + payload); + ftdi->recieved = 0; + ftdi->expected = 4; + ftdi->ed_found = 0; + return ftdi->response; + } else { + ftdi->expected = 4 + payload; + ftdi->ed_found = 1; + up(&ftdi->u132_lock); + return b; + } + } else if (ed_type == 0x03) { + if (payload == 0 || target->abandoning > 0) { + target->abandoning = 0; + up(&ftdi->u132_lock); + ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, + payload); + ftdi->recieved = 0; + ftdi->expected = 4; + ftdi->ed_found = 0; + return ftdi->response; + } else { + ftdi->expected = 4 + payload; + ftdi->ed_found = 1; + up(&ftdi->u132_lock); + return b; + } + } else if (ed_type == 0x01) { + target->abandoning = 0; + up(&ftdi->u132_lock); + ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, + payload); + ftdi->recieved = 0; + ftdi->expected = 4; + ftdi->ed_found = 0; + return ftdi->response; + } else { + target->abandoning = 0; + up(&ftdi->u132_lock); + ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, + payload); + ftdi->recieved = 0; + ftdi->expected = 4; + ftdi->ed_found = 0; + return ftdi->response; + } +} + +static char *have_ed_get_response(struct usb_ftdi *ftdi, + struct u132_target *target, u16 ed_length, int ed_number, int ed_type, + char *b) +{ + down(&ftdi->u132_lock); + target->condition_code = TD_DEVNOTRESP; + target->actual = (ed_length >> 0) & 0x01FF; + target->non_null = (ed_length >> 15) & 0x0001; + target->repeat_number = (ed_length >> 11) & 0x000F; + up(&ftdi->u132_lock); + if (target->active) + ftdi_elan_do_callback(ftdi, target, NULL, 0); + target->abandoning = 0; + ftdi->recieved = 0; + ftdi->expected = 4; + ftdi->ed_found = 0; + return ftdi->response; +} + + +/* +* The engine tries to empty the FTDI fifo +* +* all responses found in the fifo data are dispatched thus +* the response buffer can only ever hold a maximum sized +* response from the Uxxx. +* +*/ +static int ftdi_elan_respond_engine(struct usb_ftdi *ftdi) +{ + u8 *b = ftdi->response + ftdi->recieved; + int bytes_read = 0; + int retry_on_empty = 1; + int retry_on_timeout = 3; + int empty_packets = 0; + read:{ + int packet_bytes = 0; + int retval = usb_bulk_msg(ftdi->udev, + usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), + ftdi->bulk_in_buffer, ftdi->bulk_in_size, + &packet_bytes, msecs_to_jiffies(500)); + char diag[30 *3 + 4]; + char *d = diag; + int m = packet_bytes; + u8 *c = ftdi->bulk_in_buffer; + int s = (sizeof(diag) - 1) / 3; + diag[0] = 0; + while (s-- > 0 && m-- > 0) { + if (s > 0 || m == 0) { + d += sprintf(d, " %02X", *c++); + } else + d += sprintf(d, " .."); + } + if (packet_bytes > 2) { + ftdi->bulk_in_left = packet_bytes - 2; + ftdi->bulk_in_last = 1; + goto have; + } else if (retval == -ETIMEDOUT) { + if (retry_on_timeout-- > 0) { + dev_err(&ftdi->udev->dev, "TIMED OUT with packe" + "t_bytes = %d with total %d bytes%s\n", + packet_bytes, bytes_read, diag); + goto more; + } else if (bytes_read > 0) { + dev_err(&ftdi->udev->dev, "ONLY %d bytes%s\n", + bytes_read, diag); + return -ENOMEM; + } else { + dev_err(&ftdi->udev->dev, "TIMED OUT with packe" + "t_bytes = %d with total %d bytes%s\n", + packet_bytes, bytes_read, diag); + return -ENOMEM; + } + } else if (retval == -EILSEQ) { + dev_err(&ftdi->udev->dev, "error = %d with packet_bytes" + " = %d with total %d bytes%s\n", retval, + packet_bytes, bytes_read, diag); + return retval; + } else if (retval) { + dev_err(&ftdi->udev->dev, "error = %d with packet_bytes" + " = %d with total %d bytes%s\n", retval, + packet_bytes, bytes_read, diag); + return retval; + } else if (packet_bytes == 2) { + unsigned char s0 = ftdi->bulk_in_buffer[0]; + unsigned char s1 = ftdi->bulk_in_buffer[1]; + empty_packets += 1; + if (s0 == 0x31 && s1 == 0x60) { + if (retry_on_empty-- > 0) { + goto more; + } else + return 0; + } else if (s0 == 0x31 && s1 == 0x00) { + if (retry_on_empty-- > 0) { + goto more; + } else + return 0; + } else { + if (retry_on_empty-- > 0) { + goto more; + } else + return 0; + } + } else if (packet_bytes == 1) { + if (retry_on_empty-- > 0) { + goto more; + } else + return 0; + } else { + if (retry_on_empty-- > 0) { + goto more; + } else + return 0; + } + } + more:{ + goto read; + } + have:if (ftdi->bulk_in_left > 0) { + u8 c = ftdi->bulk_in_buffer[++ftdi->bulk_in_last]; + bytes_read += 1; + ftdi->bulk_in_left -= 1; + if (ftdi->recieved == 0 && c == 0xFF) { + goto have; + } else + *b++ = c; + if (++ftdi->recieved < ftdi->expected) { + goto have; + } else if (ftdi->ed_found) { + int ed_number = (ftdi->response[0] >> 5) & 0x03; + u16 ed_length = (ftdi->response[2] << 8) | + ftdi->response[1]; + struct u132_target *target = &ftdi->target[ed_number]; + int payload = (ed_length >> 0) & 0x07FF; + char diag[30 *3 + 4]; + char *d = diag; + int m = payload; + u8 *c = 4 + ftdi->response; + int s = (sizeof(diag) - 1) / 3; + diag[0] = 0; + while (s-- > 0 && m-- > 0) { + if (s > 0 || m == 0) { + d += sprintf(d, " %02X", *c++); + } else + d += sprintf(d, " .."); + } + ftdi_elan_do_callback(ftdi, target, 4 + ftdi->response, + payload); + ftdi->recieved = 0; + ftdi->expected = 4; + ftdi->ed_found = 0; + b = ftdi->response; + goto have; + } else if (ftdi->expected == 8) { + u8 buscmd; + int respond_head = ftdi->respond_head++; + struct u132_respond *respond = &ftdi->respond[ + RESPOND_MASK & respond_head]; + u32 data = ftdi->response[7]; + data <<= 8; + data |= ftdi->response[6]; + data <<= 8; + data |= ftdi->response[5]; + data <<= 8; + data |= ftdi->response[4]; + *respond->value = data; + *respond->result = 0; + complete(&respond->wait_completion); + ftdi->recieved = 0; + ftdi->expected = 4; + ftdi->ed_found = 0; + b = ftdi->response; + buscmd = (ftdi->response[0] >> 0) & 0x0F; + if (buscmd == 0x00) { + } else if (buscmd == 0x02) { + } else if (buscmd == 0x06) { + } else if (buscmd == 0x0A) { + } else + dev_err(&ftdi->udev->dev, "Uxxx unknown(%0X) va" + "lue = %08X\n", buscmd, data); + goto have; + } else { + if ((ftdi->response[0] & 0x80) == 0x00) { + ftdi->expected = 8; + goto have; + } else { + int ed_number = (ftdi->response[0] >> 5) & 0x03; + int ed_type = (ftdi->response[0] >> 0) & 0x03; + u16 ed_length = (ftdi->response[2] << 8) | + ftdi->response[1]; + struct u132_target *target = &ftdi->target[ + ed_number]; + target->halted = (ftdi->response[0] >> 3) & + 0x01; + target->skipped = (ftdi->response[0] >> 2) & + 0x01; + target->toggle_bits = (ftdi->response[3] >> 6) + & 0x03; + target->error_count = (ftdi->response[3] >> 4) + & 0x03; + target->condition_code = (ftdi->response[ + 3] >> 0) & 0x0F; + if ((ftdi->response[0] & 0x10) == 0x00) { + b = have_ed_set_response(ftdi, target, + ed_length, ed_number, ed_type, + b); + goto have; + } else { + b = have_ed_get_response(ftdi, target, + ed_length, ed_number, ed_type, + b); + goto have; + } + } + } + } else + goto more; +} + + +/* +* create a urb, and a buffer for it, and copy the data to the urb +* +*/ +static ssize_t ftdi_elan_write(struct file *file, + const char __user *user_buffer, size_t count, + loff_t *ppos) +{ + int retval = 0; + struct urb *urb; + char *buf; + char data[30 *3 + 4]; + char *d = data; + const char __user *s = user_buffer; + int m = (sizeof(data) - 1) / 3; + struct usb_ftdi *ftdi = (struct usb_ftdi *)file->private_data; + if (ftdi->disconnected > 0) { + return -ENODEV; + } + if (count == 0) { + goto exit; + } + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) { + retval = -ENOMEM; + goto error_1; + } + buf = usb_buffer_alloc(ftdi->udev, count, GFP_KERNEL, + &urb->transfer_dma); + if (!buf) { + retval = -ENOMEM; + goto error_2; + } + if (copy_from_user(buf, user_buffer, count)) { + retval = -EFAULT; + goto error_3; + } + usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev, + ftdi->bulk_out_endpointAddr), buf, count, + ftdi_elan_write_bulk_callback, ftdi); + urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + retval = usb_submit_urb(urb, GFP_KERNEL); + if (retval) { + dev_err(&ftdi->udev->dev, "failed submitting write urb, error %" + "d\n", retval); + goto error_4; + } + usb_free_urb(urb); + exit:; + if (count > m) { + int I = m - 1; + while (I-- > 0) { + d += sprintf(d, " %02X", 0x000000FF & *s++); + } + d += sprintf(d, " .."); + } else { + int I = count; + while (I-- > 0) { + d += sprintf(d, " %02X", 0x000000FF & *s++); + } + } + return count; + error_4: error_3:usb_buffer_free(ftdi->udev, count, buf, + urb->transfer_dma); + error_2:usb_free_urb(urb); + error_1:return retval; +} + +static struct file_operations ftdi_elan_fops = { + .owner = THIS_MODULE, + .llseek = no_llseek, + .ioctl = ftdi_elan_ioctl, + .read = ftdi_elan_read, + .write = ftdi_elan_write, + .open = ftdi_elan_open, + .release = ftdi_elan_release, +}; + +/* +* usb class driver info in order to get a minor number from the usb core, +* and to have the device registered with the driver core +*/ +static struct usb_class_driver ftdi_elan_jtag_class = { + .name = "ftdi-%d-jtag", + .fops = &ftdi_elan_fops, + .minor_base = USB_FTDI_ELAN_MINOR_BASE, +}; + +/* +* the following definitions are for the +* ELAN FPGA state machgine processor that +* lies on the other side of the FTDI chip +*/ +#define cPCIu132rd 0x0 +#define cPCIu132wr 0x1 +#define cPCIiord 0x2 +#define cPCIiowr 0x3 +#define cPCImemrd 0x6 +#define cPCImemwr 0x7 +#define cPCIcfgrd 0xA +#define cPCIcfgwr 0xB +#define cPCInull 0xF +#define cU132cmd_status 0x0 +#define cU132flash 0x1 +#define cPIDsetup 0x0 +#define cPIDout 0x1 +#define cPIDin 0x2 +#define cPIDinonce 0x3 +#define cCCnoerror 0x0 +#define cCCcrc 0x1 +#define cCCbitstuff 0x2 +#define cCCtoggle 0x3 +#define cCCstall 0x4 +#define cCCnoresp 0x5 +#define cCCbadpid1 0x6 +#define cCCbadpid2 0x7 +#define cCCdataoverrun 0x8 +#define cCCdataunderrun 0x9 +#define cCCbuffoverrun 0xC +#define cCCbuffunderrun 0xD +#define cCCnotaccessed 0xF +static int ftdi_elan_write_reg(struct usb_ftdi *ftdi, u32 data) +{ + wait:if (ftdi->disconnected > 0) { + return -ENODEV; + } else { + int command_size; + down(&ftdi->u132_lock); + command_size = ftdi->command_next - ftdi->command_head; + if (command_size < COMMAND_SIZE) { + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + command->header = 0x00 | cPCIu132wr; + command->length = 0x04; + command->address = 0x00; + command->width = 0x00; + command->follows = 4; + command->value = data; + command->buffer = &command->value; + ftdi->command_next += 1; + ftdi_elan_kick_command_queue(ftdi); + up(&ftdi->u132_lock); + return 0; + } else { + up(&ftdi->u132_lock); + msleep(100); + goto wait; + } + } +} + +static int ftdi_elan_write_config(struct usb_ftdi *ftdi, int config_offset, + u8 width, u32 data) +{ + u8 addressofs = config_offset / 4; + wait:if (ftdi->disconnected > 0) { + return -ENODEV; + } else { + int command_size; + down(&ftdi->u132_lock); + command_size = ftdi->command_next - ftdi->command_head; + if (command_size < COMMAND_SIZE) { + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + command->header = 0x00 | (cPCIcfgwr & 0x0F); + command->length = 0x04; + command->address = addressofs; + command->width = 0x00 | (width & 0x0F); + command->follows = 4; + command->value = data; + command->buffer = &command->value; + ftdi->command_next += 1; + ftdi_elan_kick_command_queue(ftdi); + up(&ftdi->u132_lock); + return 0; + } else { + up(&ftdi->u132_lock); + msleep(100); + goto wait; + } + } +} + +static int ftdi_elan_write_pcimem(struct usb_ftdi *ftdi, int mem_offset, + u8 width, u32 data) +{ + u8 addressofs = mem_offset / 4; + wait:if (ftdi->disconnected > 0) { + return -ENODEV; + } else { + int command_size; + down(&ftdi->u132_lock); + command_size = ftdi->command_next - ftdi->command_head; + if (command_size < COMMAND_SIZE) { + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + command->header = 0x00 | (cPCImemwr & 0x0F); + command->length = 0x04; + command->address = addressofs; + command->width = 0x00 | (width & 0x0F); + command->follows = 4; + command->value = data; + command->buffer = &command->value; + ftdi->command_next += 1; + ftdi_elan_kick_command_queue(ftdi); + up(&ftdi->u132_lock); + return 0; + } else { + up(&ftdi->u132_lock); + msleep(100); + goto wait; + } + } +} + +int usb_ftdi_elan_write_pcimem(struct platform_device *pdev, int mem_offset, + u8 width, u32 data) +{ + struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); + return ftdi_elan_write_pcimem(ftdi, mem_offset, width, data); +} + + +EXPORT_SYMBOL_GPL(usb_ftdi_elan_write_pcimem); +static int ftdi_elan_read_reg(struct usb_ftdi *ftdi, u32 *data) +{ + wait:if (ftdi->disconnected > 0) { + return -ENODEV; + } else { + int command_size; + int respond_size; + down(&ftdi->u132_lock); + command_size = ftdi->command_next - ftdi->command_head; + respond_size = ftdi->respond_next - ftdi->respond_head; + if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE) + { + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + struct u132_respond *respond = &ftdi->respond[ + RESPOND_MASK & ftdi->respond_next]; + int result = -ENODEV; + respond->result = &result; + respond->header = command->header = 0x00 | cPCIu132rd; + command->length = 0x04; + respond->address = command->address = cU132cmd_status; + command->width = 0x00; + command->follows = 0; + command->value = 0; + command->buffer = NULL; + respond->value = data; + init_completion(&respond->wait_completion); + ftdi->command_next += 1; + ftdi->respond_next += 1; + ftdi_elan_kick_command_queue(ftdi); + up(&ftdi->u132_lock); + wait_for_completion(&respond->wait_completion); + return result; + } else { + up(&ftdi->u132_lock); + msleep(100); + goto wait; + } + } +} + +int usb_ftdi_elan_read_reg(struct platform_device *pdev, u32 *data) +{ + struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); + return ftdi_elan_read_reg(ftdi, data); +} + + +EXPORT_SYMBOL_GPL(usb_ftdi_elan_read_reg); +static int ftdi_elan_read_config(struct usb_ftdi *ftdi, int config_offset, + u8 width, u32 *data) +{ + u8 addressofs = config_offset / 4; + wait:if (ftdi->disconnected > 0) { + return -ENODEV; + } else { + int command_size; + int respond_size; + down(&ftdi->u132_lock); + command_size = ftdi->command_next - ftdi->command_head; + respond_size = ftdi->respond_next - ftdi->respond_head; + if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE) + { + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + struct u132_respond *respond = &ftdi->respond[ + RESPOND_MASK & ftdi->respond_next]; + int result = -ENODEV; + respond->result = &result; + respond->header = command->header = 0x00 | (cPCIcfgrd & + 0x0F); + command->length = 0x04; + respond->address = command->address = addressofs; + command->width = 0x00 | (width & 0x0F); + command->follows = 0; + command->value = 0; + command->buffer = NULL; + respond->value = data; + init_completion(&respond->wait_completion); + ftdi->command_next += 1; + ftdi->respond_next += 1; + ftdi_elan_kick_command_queue(ftdi); + up(&ftdi->u132_lock); + wait_for_completion(&respond->wait_completion); + return result; + } else { + up(&ftdi->u132_lock); + msleep(100); + goto wait; + } + } +} + +static int ftdi_elan_read_pcimem(struct usb_ftdi *ftdi, int mem_offset, + u8 width, u32 *data) +{ + u8 addressofs = mem_offset / 4; + wait:if (ftdi->disconnected > 0) { + return -ENODEV; + } else { + int command_size; + int respond_size; + down(&ftdi->u132_lock); + command_size = ftdi->command_next - ftdi->command_head; + respond_size = ftdi->respond_next - ftdi->respond_head; + if (command_size < COMMAND_SIZE && respond_size < RESPOND_SIZE) + { + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + struct u132_respond *respond = &ftdi->respond[ + RESPOND_MASK & ftdi->respond_next]; + int result = -ENODEV; + respond->result = &result; + respond->header = command->header = 0x00 | (cPCImemrd & + 0x0F); + command->length = 0x04; + respond->address = command->address = addressofs; + command->width = 0x00 | (width & 0x0F); + command->follows = 0; + command->value = 0; + command->buffer = NULL; + respond->value = data; + init_completion(&respond->wait_completion); + ftdi->command_next += 1; + ftdi->respond_next += 1; + ftdi_elan_kick_command_queue(ftdi); + up(&ftdi->u132_lock); + wait_for_completion(&respond->wait_completion); + return result; + } else { + up(&ftdi->u132_lock); + msleep(100); + goto wait; + } + } +} + +int usb_ftdi_elan_read_pcimem(struct platform_device *pdev, int mem_offset, + u8 width, u32 *data) +{ + struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); + if (ftdi->initialized == 0) { + return -ENODEV; + } else + return ftdi_elan_read_pcimem(ftdi, mem_offset, width, data); +} + + +EXPORT_SYMBOL_GPL(usb_ftdi_elan_read_pcimem); +static int ftdi_elan_edset_setup(struct usb_ftdi *ftdi, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + u8 ed = ed_number - 1; + wait:if (ftdi->disconnected > 0) { + return -ENODEV; + } else if (ftdi->initialized == 0) { + return -ENODEV; + } else { + int command_size; + down(&ftdi->u132_lock); + command_size = ftdi->command_next - ftdi->command_head; + if (command_size < COMMAND_SIZE) { + struct u132_target *target = &ftdi->target[ed]; + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + command->header = 0x80 | (ed << 5); + command->length = 0x8007; + command->address = (toggle_bits << 6) | (ep_number << 2) + | (address << 0); + command->width = usb_maxpacket(urb->dev, urb->pipe, + usb_pipeout(urb->pipe)); + command->follows = 8; + command->value = 0; + command->buffer = urb->setup_packet; + target->callback = callback; + target->endp = endp; + target->urb = urb; + target->active = 1; + ftdi->command_next += 1; + ftdi_elan_kick_command_queue(ftdi); + up(&ftdi->u132_lock); + return 0; + } else { + up(&ftdi->u132_lock); + msleep(100); + goto wait; + } + } +} + +int usb_ftdi_elan_edset_setup(struct platform_device *pdev, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); + return ftdi_elan_edset_setup(ftdi, ed_number, endp, urb, address, + ep_number, toggle_bits, callback); +} + + +EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_setup); +static int ftdi_elan_edset_input(struct usb_ftdi *ftdi, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + u8 ed = ed_number - 1; + wait:if (ftdi->disconnected > 0) { + return -ENODEV; + } else if (ftdi->initialized == 0) { + return -ENODEV; + } else { + int command_size; + down(&ftdi->u132_lock); + command_size = ftdi->command_next - ftdi->command_head; + if (command_size < COMMAND_SIZE) { + struct u132_target *target = &ftdi->target[ed]; + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + int remaining_length = urb->transfer_buffer_length - + urb->actual_length; + command->header = 0x82 | (ed << 5); + if (remaining_length == 0) { + command->length = 0x0000; + } else if (remaining_length > 1024) { + command->length = 0x8000 | 1023; + } else + command->length = 0x8000 | (remaining_length - + 1); + command->address = (toggle_bits << 6) | (ep_number << 2) + | (address << 0); + command->width = usb_maxpacket(urb->dev, urb->pipe, + usb_pipeout(urb->pipe)); + command->follows = 0; + command->value = 0; + command->buffer = NULL; + target->callback = callback; + target->endp = endp; + target->urb = urb; + target->active = 1; + ftdi->command_next += 1; + ftdi_elan_kick_command_queue(ftdi); + up(&ftdi->u132_lock); + return 0; + } else { + up(&ftdi->u132_lock); + msleep(100); + goto wait; + } + } +} + +int usb_ftdi_elan_edset_input(struct platform_device *pdev, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); + return ftdi_elan_edset_input(ftdi, ed_number, endp, urb, address, + ep_number, toggle_bits, callback); +} + + +EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_input); +static int ftdi_elan_edset_empty(struct usb_ftdi *ftdi, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + u8 ed = ed_number - 1; + wait:if (ftdi->disconnected > 0) { + return -ENODEV; + } else if (ftdi->initialized == 0) { + return -ENODEV; + } else { + int command_size; + down(&ftdi->u132_lock); + command_size = ftdi->command_next - ftdi->command_head; + if (command_size < COMMAND_SIZE) { + struct u132_target *target = &ftdi->target[ed]; + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + command->header = 0x81 | (ed << 5); + command->length = 0x0000; + command->address = (toggle_bits << 6) | (ep_number << 2) + | (address << 0); + command->width = usb_maxpacket(urb->dev, urb->pipe, + usb_pipeout(urb->pipe)); + command->follows = 0; + command->value = 0; + command->buffer = NULL; + target->callback = callback; + target->endp = endp; + target->urb = urb; + target->active = 1; + ftdi->command_next += 1; + ftdi_elan_kick_command_queue(ftdi); + up(&ftdi->u132_lock); + return 0; + } else { + up(&ftdi->u132_lock); + msleep(100); + goto wait; + } + } +} + +int usb_ftdi_elan_edset_empty(struct platform_device *pdev, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); + return ftdi_elan_edset_empty(ftdi, ed_number, endp, urb, address, + ep_number, toggle_bits, callback); +} + + +EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_empty); +static int ftdi_elan_edset_output(struct usb_ftdi *ftdi, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + u8 ed = ed_number - 1; + wait:if (ftdi->disconnected > 0) { + return -ENODEV; + } else if (ftdi->initialized == 0) { + return -ENODEV; + } else { + int command_size; + down(&ftdi->u132_lock); + command_size = ftdi->command_next - ftdi->command_head; + if (command_size < COMMAND_SIZE) { + u8 *b; + u16 urb_size; + int i = 0; + char data[30 *3 + 4]; + char *d = data; + int m = (sizeof(data) - 1) / 3; + int l = 0; + struct u132_target *target = &ftdi->target[ed]; + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + command->header = 0x81 | (ed << 5); + command->address = (toggle_bits << 6) | (ep_number << 2) + | (address << 0); + command->width = usb_maxpacket(urb->dev, urb->pipe, + usb_pipeout(urb->pipe)); + command->follows = min(1024, + urb->transfer_buffer_length - + urb->actual_length); + command->value = 0; + command->buffer = urb->transfer_buffer + + urb->actual_length; + command->length = 0x8000 | (command->follows - 1); + b = command->buffer; + urb_size = command->follows; + data[0] = 0; + while (urb_size-- > 0) { + if (i > m) { + } else if (i++ < m) { + int w = sprintf(d, " %02X", *b++); + d += w; + l += w; + } else + d += sprintf(d, " .."); + } + target->callback = callback; + target->endp = endp; + target->urb = urb; + target->active = 1; + ftdi->command_next += 1; + ftdi_elan_kick_command_queue(ftdi); + up(&ftdi->u132_lock); + return 0; + } else { + up(&ftdi->u132_lock); + msleep(100); + goto wait; + } + } +} + +int usb_ftdi_elan_edset_output(struct platform_device *pdev, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); + return ftdi_elan_edset_output(ftdi, ed_number, endp, urb, address, + ep_number, toggle_bits, callback); +} + + +EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_output); +static int ftdi_elan_edset_single(struct usb_ftdi *ftdi, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + u8 ed = ed_number - 1; + wait:if (ftdi->disconnected > 0) { + return -ENODEV; + } else if (ftdi->initialized == 0) { + return -ENODEV; + } else { + int command_size; + down(&ftdi->u132_lock); + command_size = ftdi->command_next - ftdi->command_head; + if (command_size < COMMAND_SIZE) { + int remaining_length = urb->transfer_buffer_length - + urb->actual_length; + struct u132_target *target = &ftdi->target[ed]; + struct u132_command *command = &ftdi->command[ + COMMAND_MASK & ftdi->command_next]; + command->header = 0x83 | (ed << 5); + if (remaining_length == 0) { + command->length = 0x0000; + } else if (remaining_length > 1024) { + command->length = 0x8000 | 1023; + } else + command->length = 0x8000 | (remaining_length - + 1); + command->address = (toggle_bits << 6) | (ep_number << 2) + | (address << 0); + command->width = usb_maxpacket(urb->dev, urb->pipe, + usb_pipeout(urb->pipe)); + command->follows = 0; + command->value = 0; + command->buffer = NULL; + target->callback = callback; + target->endp = endp; + target->urb = urb; + target->active = 1; + ftdi->command_next += 1; + ftdi_elan_kick_command_queue(ftdi); + up(&ftdi->u132_lock); + return 0; + } else { + up(&ftdi->u132_lock); + msleep(100); + goto wait; + } + } +} + +int usb_ftdi_elan_edset_single(struct platform_device *pdev, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)) +{ + struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); + return ftdi_elan_edset_single(ftdi, ed_number, endp, urb, address, + ep_number, toggle_bits, callback); +} + + +EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_single); +static int ftdi_elan_edset_flush(struct usb_ftdi *ftdi, u8 ed_number, + void *endp) +{ + u8 ed = ed_number - 1; + if (ftdi->disconnected > 0) { + return -ENODEV; + } else if (ftdi->initialized == 0) { + return -ENODEV; + } else { + struct u132_target *target = &ftdi->target[ed]; + down(&ftdi->u132_lock); + if (target->abandoning > 0) { + up(&ftdi->u132_lock); + return 0; + } else { + target->abandoning = 1; + wait_1:if (target->active == 1) { + int command_size = ftdi->command_next - + ftdi->command_head; + if (command_size < COMMAND_SIZE) { + struct u132_command *command = + &ftdi->command[COMMAND_MASK & + ftdi->command_next]; + command->header = 0x80 | (ed << 5) | + 0x4; + command->length = 0x00; + command->address = 0x00; + command->width = 0x00; + command->follows = 0; + command->value = 0; + command->buffer = &command->value; + ftdi->command_next += 1; + ftdi_elan_kick_command_queue(ftdi); + } else { + up(&ftdi->u132_lock); + msleep(100); + down(&ftdi->u132_lock); + goto wait_1; + } + } + up(&ftdi->u132_lock); + return 0; + } + } +} + +int usb_ftdi_elan_edset_flush(struct platform_device *pdev, u8 ed_number, + void *endp) +{ + struct usb_ftdi *ftdi = platform_device_to_usb_ftdi(pdev); + return ftdi_elan_edset_flush(ftdi, ed_number, endp); +} + + +EXPORT_SYMBOL_GPL(usb_ftdi_elan_edset_flush); +static int ftdi_elan_flush_input_fifo(struct usb_ftdi *ftdi) +{ + int retry_on_empty = 10; + int retry_on_timeout = 5; + int retry_on_status = 20; + more:{ + int packet_bytes = 0; + int retval = usb_bulk_msg(ftdi->udev, + usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), + ftdi->bulk_in_buffer, ftdi->bulk_in_size, + &packet_bytes, msecs_to_jiffies(100)); + if (packet_bytes > 2) { + char diag[30 *3 + 4]; + char *d = diag; + int m = (sizeof(diag) - 1) / 3; + char *b = ftdi->bulk_in_buffer; + int bytes_read = 0; + diag[0] = 0; + while (packet_bytes-- > 0) { + char c = *b++; + if (bytes_read < m) { + d += sprintf(d, " %02X", + 0x000000FF & c); + } else if (bytes_read > m) { + } else + d += sprintf(d, " .."); + bytes_read += 1; + continue; + } + goto more; + } else if (packet_bytes > 1) { + char s1 = ftdi->bulk_in_buffer[0]; + char s2 = ftdi->bulk_in_buffer[1]; + if (s1 == 0x31 && s2 == 0x60) { + return 0; + } else if (retry_on_status-- > 0) { + goto more; + } else { + dev_err(&ftdi->udev->dev, "STATUS ERROR retry l" + "imit reached\n"); + return -EFAULT; + } + } else if (packet_bytes > 0) { + char b1 = ftdi->bulk_in_buffer[0]; + dev_err(&ftdi->udev->dev, "only one byte flushed from F" + "TDI = %02X\n", b1); + if (retry_on_status-- > 0) { + goto more; + } else { + dev_err(&ftdi->udev->dev, "STATUS ERROR retry l" + "imit reached\n"); + return -EFAULT; + } + } else if (retval == -ETIMEDOUT) { + if (retry_on_timeout-- > 0) { + goto more; + } else { + dev_err(&ftdi->udev->dev, "TIMED OUT retry limi" + "t reached\n"); + return -ENOMEM; + } + } else if (retval == 0) { + if (retry_on_empty-- > 0) { + goto more; + } else { + dev_err(&ftdi->udev->dev, "empty packet retry l" + "imit reached\n"); + return -ENOMEM; + } + } else { + dev_err(&ftdi->udev->dev, "error = %d\n", retval); + return retval; + } + } + return -1; +} + + +/* +* send the long flush sequence +* +*/ +static int ftdi_elan_synchronize_flush(struct usb_ftdi *ftdi) +{ + int retval; + struct urb *urb; + char *buf; + int I = 257; + int i = 0; + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) { + dev_err(&ftdi->udev->dev, "could not alloc a urb for flush sequ" + "ence\n"); + return -ENOMEM; + } + buf = usb_buffer_alloc(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma); + if (!buf) { + dev_err(&ftdi->udev->dev, "could not get a buffer for flush seq" + "uence\n"); + usb_free_urb(urb); + return -ENOMEM; + } + while (I-- > 0) + buf[i++] = 0x55; + usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev, + ftdi->bulk_out_endpointAddr), buf, i, + ftdi_elan_write_bulk_callback, ftdi); + urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + retval = usb_submit_urb(urb, GFP_KERNEL); + if (retval) { + dev_err(&ftdi->udev->dev, "failed to submit urb containing the " + "flush sequence\n"); + usb_buffer_free(ftdi->udev, i, buf, urb->transfer_dma); + usb_free_urb(urb); + return -ENOMEM; + } + usb_free_urb(urb); + return 0; +} + + +/* +* send the reset sequence +* +*/ +static int ftdi_elan_synchronize_reset(struct usb_ftdi *ftdi) +{ + int retval; + struct urb *urb; + char *buf; + int I = 4; + int i = 0; + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) { + dev_err(&ftdi->udev->dev, "could not get a urb for the reset se" + "quence\n"); + return -ENOMEM; + } + buf = usb_buffer_alloc(ftdi->udev, I, GFP_KERNEL, &urb->transfer_dma); + if (!buf) { + dev_err(&ftdi->udev->dev, "could not get a buffer for the reset" + " sequence\n"); + usb_free_urb(urb); + return -ENOMEM; + } + buf[i++] = 0x55; + buf[i++] = 0xAA; + buf[i++] = 0x5A; + buf[i++] = 0xA5; + usb_fill_bulk_urb(urb, ftdi->udev, usb_sndbulkpipe(ftdi->udev, + ftdi->bulk_out_endpointAddr), buf, i, + ftdi_elan_write_bulk_callback, ftdi); + urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + retval = usb_submit_urb(urb, GFP_KERNEL); + if (retval) { + dev_err(&ftdi->udev->dev, "failed to submit urb containing the " + "reset sequence\n"); + usb_buffer_free(ftdi->udev, i, buf, urb->transfer_dma); + usb_free_urb(urb); + return -ENOMEM; + } + usb_free_urb(urb); + return 0; +} + +static int ftdi_elan_synchronize(struct usb_ftdi *ftdi) +{ + int retval; + int long_stop = 10; + int retry_on_timeout = 5; + int retry_on_empty = 10; + int err_count = 0; + retval = ftdi_elan_flush_input_fifo(ftdi); + if (retval) + return retval; + ftdi->bulk_in_left = 0; + ftdi->bulk_in_last = -1; + while (long_stop-- > 0) { + int read_stop; + int read_stuck; + retval = ftdi_elan_synchronize_flush(ftdi); + if (retval) + return retval; + retval = ftdi_elan_flush_input_fifo(ftdi); + if (retval) + return retval; + reset:retval = ftdi_elan_synchronize_reset(ftdi); + if (retval) + return retval; + read_stop = 100; + read_stuck = 10; + read:{ + int packet_bytes = 0; + retval = usb_bulk_msg(ftdi->udev, + usb_rcvbulkpipe(ftdi->udev, + ftdi->bulk_in_endpointAddr), + ftdi->bulk_in_buffer, ftdi->bulk_in_size, + &packet_bytes, msecs_to_jiffies(500)); + if (packet_bytes > 2) { + char diag[30 *3 + 4]; + char *d = diag; + int m = (sizeof(diag) - 1) / 3; + char *b = ftdi->bulk_in_buffer; + int bytes_read = 0; + unsigned char c = 0; + diag[0] = 0; + while (packet_bytes-- > 0) { + c = *b++; + if (bytes_read < m) { + d += sprintf(d, " %02X", c); + } else if (bytes_read > m) { + } else + d += sprintf(d, " .."); + bytes_read += 1; + continue; + } + if (c == 0x7E) { + return 0; + } else { + if (c == 0x55) { + goto read; + } else if (read_stop-- > 0) { + goto read; + } else { + dev_err(&ftdi->udev->dev, "retr" + "y limit reached\n"); + continue; + } + } + } else if (packet_bytes > 1) { + unsigned char s1 = ftdi->bulk_in_buffer[0]; + unsigned char s2 = ftdi->bulk_in_buffer[1]; + if (s1 == 0x31 && s2 == 0x00) { + if (read_stuck-- > 0) { + goto read; + } else + goto reset; + } else if (s1 == 0x31 && s2 == 0x60) { + if (read_stop-- > 0) { + goto read; + } else { + dev_err(&ftdi->udev->dev, "retr" + "y limit reached\n"); + continue; + } + } else { + if (read_stop-- > 0) { + goto read; + } else { + dev_err(&ftdi->udev->dev, "retr" + "y limit reached\n"); + continue; + } + } + } else if (packet_bytes > 0) { + if (read_stop-- > 0) { + goto read; + } else { + dev_err(&ftdi->udev->dev, "retry limit " + "reached\n"); + continue; + } + } else if (retval == -ETIMEDOUT) { + if (retry_on_timeout-- > 0) { + goto read; + } else { + dev_err(&ftdi->udev->dev, "TIMED OUT re" + "try limit reached\n"); + continue; + } + } else if (retval == 0) { + if (retry_on_empty-- > 0) { + goto read; + } else { + dev_err(&ftdi->udev->dev, "empty packet" + " retry limit reached\n"); + continue; + } + } else { + err_count += 1; + dev_err(&ftdi->udev->dev, "error = %d\n", + retval); + if (read_stop-- > 0) { + goto read; + } else { + dev_err(&ftdi->udev->dev, "retry limit " + "reached\n"); + continue; + } + } + } + } + dev_err(&ftdi->udev->dev, "failed to synchronize\n"); + return -EFAULT; +} + +static int ftdi_elan_stuck_waiting(struct usb_ftdi *ftdi) +{ + int retry_on_empty = 10; + int retry_on_timeout = 5; + int retry_on_status = 50; + more:{ + int packet_bytes = 0; + int retval = usb_bulk_msg(ftdi->udev, + usb_rcvbulkpipe(ftdi->udev, ftdi->bulk_in_endpointAddr), + ftdi->bulk_in_buffer, ftdi->bulk_in_size, + &packet_bytes, msecs_to_jiffies(1000)); + if (packet_bytes > 2) { + char diag[30 *3 + 4]; + char *d = diag; + int m = (sizeof(diag) - 1) / 3; + char *b = ftdi->bulk_in_buffer; + int bytes_read = 0; + diag[0] = 0; + while (packet_bytes-- > 0) { + char c = *b++; + if (bytes_read < m) { + d += sprintf(d, " %02X", + 0x000000FF & c); + } else if (bytes_read > m) { + } else + d += sprintf(d, " .."); + bytes_read += 1; + continue; + } + goto more; + } else if (packet_bytes > 1) { + char s1 = ftdi->bulk_in_buffer[0]; + char s2 = ftdi->bulk_in_buffer[1]; + if (s1 == 0x31 && s2 == 0x60) { + return 0; + } else if (retry_on_status-- > 0) { + msleep(5); + goto more; + } else + return -EFAULT; + } else if (packet_bytes > 0) { + char b1 = ftdi->bulk_in_buffer[0]; + dev_err(&ftdi->udev->dev, "only one byte flushed from F" + "TDI = %02X\n", b1); + if (retry_on_status-- > 0) { + msleep(5); + goto more; + } else { + dev_err(&ftdi->udev->dev, "STATUS ERROR retry l" + "imit reached\n"); + return -EFAULT; + } + } else if (retval == -ETIMEDOUT) { + if (retry_on_timeout-- > 0) { + goto more; + } else { + dev_err(&ftdi->udev->dev, "TIMED OUT retry limi" + "t reached\n"); + return -ENOMEM; + } + } else if (retval == 0) { + if (retry_on_empty-- > 0) { + goto more; + } else { + dev_err(&ftdi->udev->dev, "empty packet retry l" + "imit reached\n"); + return -ENOMEM; + } + } else { + dev_err(&ftdi->udev->dev, "error = %d\n", retval); + return -ENOMEM; + } + } + return -1; +} + +static int ftdi_elan_checkingPCI(struct usb_ftdi *ftdi) +{ + int UxxxStatus = ftdi_elan_read_reg(ftdi, &ftdi->controlreg); + if (UxxxStatus) + return UxxxStatus; + if (ftdi->controlreg & 0x00400000) { + if (ftdi->card_ejected) { + } else { + ftdi->card_ejected = 1; + dev_err(&ftdi->udev->dev, "CARD EJECTED - controlreg = " + "%08X\n", ftdi->controlreg); + } + return -ENODEV; + } else { + u8 fn = ftdi->function - 1; + int activePCIfn = fn << 8; + u32 pcidata; + u32 pciVID; + u32 pciPID; + int reg = 0; + UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, + &pcidata); + if (UxxxStatus) + return UxxxStatus; + pciVID = pcidata & 0xFFFF; + pciPID = (pcidata >> 16) & 0xFFFF; + if (pciVID == ftdi->platform_data.vendor && pciPID == + ftdi->platform_data.device) { + return 0; + } else { + dev_err(&ftdi->udev->dev, "vendor=%04X pciVID=%04X devi" + "ce=%04X pciPID=%04X\n", + ftdi->platform_data.vendor, pciVID, + ftdi->platform_data.device, pciPID); + return -ENODEV; + } + } +} + +static int ftdi_elan_enumeratePCI(struct usb_ftdi *ftdi) +{ + u32 latence_timer; + u32 controlreg; + int UxxxStatus; + u32 pcidata; + int reg = 0; + int foundOHCI = 0; + u8 fn; + int activePCIfn = 0; + u32 pciVID = 0; + u32 pciPID = 0; + UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000000L); + if (UxxxStatus) + return UxxxStatus; + msleep(750); + UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000200L | 0x100); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_write_reg(ftdi, 0x00000200L | 0x500); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020CL | 0x000); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020DL | 0x000); + if (UxxxStatus) + return UxxxStatus; + msleep(250); + UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000020FL | 0x000); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x800); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_read_reg(ftdi, &controlreg); + if (UxxxStatus) + return UxxxStatus; + msleep(1000); + for (fn = 0; (fn < 4) && (!foundOHCI); fn++) { + activePCIfn = fn << 8; + ftdi->function = fn + 1; + UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, + &pcidata); + if (UxxxStatus) + return UxxxStatus; + pciVID = pcidata & 0xFFFF; + pciPID = (pcidata >> 16) & 0xFFFF; + if ((pciVID == 0x1045) && (pciPID == 0xc861)) { + foundOHCI = 1; + } else if ((pciVID == 0x1033) && (pciPID == 0x0035)) { + foundOHCI = 1; + } else if ((pciVID == 0x10b9) && (pciPID == 0x5237)) { + foundOHCI = 1; + } else if ((pciVID == 0x11c1) && (pciPID == 0x5802)) { + foundOHCI = 1; + } else if ((pciVID == 0x11AB) && (pciPID == 0x1FA6)) { + } + } + if (foundOHCI == 0) { + return -ENXIO; + } + ftdi->platform_data.vendor = pciVID; + ftdi->platform_data.device = pciPID; + UxxxStatus = ftdi_elan_write_reg(ftdi, 0x0000025FL | 0x2800); + if (UxxxStatus) + return UxxxStatus; + reg = 16; + UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0, + 0xFFFFFFFF); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, + &pcidata); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0, + 0xF0000000); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, + &pcidata); + if (UxxxStatus) + return UxxxStatus; + reg = 12; + UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, + &latence_timer); + if (UxxxStatus) + return UxxxStatus; + latence_timer &= 0xFFFF00FF; + latence_timer |= 0x00001600; + UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00, + latence_timer); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, + &pcidata); + if (UxxxStatus) + return UxxxStatus; + reg = 4; + UxxxStatus = ftdi_elan_write_config(ftdi, activePCIfn | reg, 0x00, + 0x06); + if (UxxxStatus) + return UxxxStatus; + UxxxStatus = ftdi_elan_read_config(ftdi, activePCIfn | reg, 0, + &pcidata); + if (UxxxStatus) + return UxxxStatus; + return 0; +} + +static int ftdi_elan_setupOHCI(struct usb_ftdi *ftdi) +{ + u32 pcidata; + int U132Status; + int reg; + int reset_repeat = 0; + do_reset:reg = 8; + U132Status = ftdi_elan_write_pcimem(ftdi, reg, 0x0e, 0x01); + if (U132Status) + return U132Status; + reset_check:{ + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + if (pcidata & 1) { + msleep(500); + if (reset_repeat++ > 100) { + reset_repeat = 0; + goto do_reset; + } else + goto reset_check; + } + } + goto dump_regs; + msleep(500); + reg = 0x28; + U132Status = ftdi_elan_write_pcimem(ftdi, reg, 0x00, 0x11000000); + if (U132Status) + return U132Status; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 0x40; + U132Status = ftdi_elan_write_pcimem(ftdi, reg, 0x00, 0x2edf); + if (U132Status) + return U132Status; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 0x34; + U132Status = ftdi_elan_write_pcimem(ftdi, reg, 0x00, 0x2edf2edf); + if (U132Status) + return U132Status; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 4; + U132Status = ftdi_elan_write_pcimem(ftdi, reg, 0x00, 0xA0); + if (U132Status) + return U132Status; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + msleep(250); + reg = 8; + U132Status = ftdi_elan_write_pcimem(ftdi, reg, 0x0e, 0x04); + if (U132Status) + return U132Status; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 0x28; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 8; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 0x48; + U132Status = ftdi_elan_write_pcimem(ftdi, reg, 0x00, 0x00001200); + if (U132Status) + return U132Status; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 0x54; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 0x58; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 0x34; + U132Status = ftdi_elan_write_pcimem(ftdi, reg, 0x00, 0x28002edf); + if (U132Status) + return U132Status; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + msleep(100); + reg = 0x50; + U132Status = ftdi_elan_write_pcimem(ftdi, reg, 0x00, 0x10000); + if (U132Status) + return U132Status; + reg = 0x54; + power_check:U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + if (!(pcidata & 1)) { + msleep(500); + goto power_check; + } + msleep(3000); + reg = 0x54; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 0x58; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 0x54; + U132Status = ftdi_elan_write_pcimem(ftdi, reg, 0x00, 0x02); + if (U132Status) + return U132Status; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 0x54; + U132Status = ftdi_elan_write_pcimem(ftdi, reg, 0x00, 0x10); + if (U132Status) + return U132Status; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + msleep(750); + reg = 0x54; + if (0) { + U132Status = ftdi_elan_write_pcimem(ftdi, reg, 0x00, 0x02); + if (U132Status) + return U132Status; + } + if (0) { + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + } + reg = 0x54; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + reg = 0x58; + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + dump_regs:for (reg = 0; reg <= 0x54; reg += 4) { + U132Status = ftdi_elan_read_pcimem(ftdi, reg, 0, &pcidata); + if (U132Status) + return U132Status; + } + return 0; +} + + +/* +* we use only the first bulk-in and bulk-out endpoints +*/ +static int ftdi_elan_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct usb_host_interface *iface_desc; + struct usb_endpoint_descriptor *endpoint; + size_t buffer_size; + int i; + int retval = -ENOMEM; + struct usb_ftdi *ftdi = kmalloc(sizeof(struct usb_ftdi), GFP_KERNEL); + if (ftdi == NULL) { + printk(KERN_ERR "Out of memory\n"); + return -ENOMEM; + } + memset(ftdi, 0x00, sizeof(struct usb_ftdi)); + down(&ftdi_module_lock); + list_add_tail(&ftdi->ftdi_list, &ftdi_static_list); + ftdi->sequence_num = ++ftdi_instances; + up(&ftdi_module_lock); + ftdi_elan_init_kref(ftdi); + init_MUTEX(&ftdi->sw_lock); + ftdi->udev = usb_get_dev(interface_to_usbdev(interface)); + ftdi->interface = interface; + init_MUTEX(&ftdi->u132_lock); + ftdi->expected = 4; + iface_desc = interface->cur_altsetting; + for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { + endpoint = &iface_desc->endpoint[i].desc; + if (!ftdi->bulk_in_endpointAddr && + ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) + == USB_DIR_IN) && ((endpoint->bmAttributes & + USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK)) + { + buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); + ftdi->bulk_in_size = buffer_size; + ftdi->bulk_in_endpointAddr = endpoint->bEndpointAddress; + ftdi->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL); + if (!ftdi->bulk_in_buffer) { + dev_err(&ftdi->udev->dev, "Could not allocate b" + "ulk_in_buffer\n"); + retval = -ENOMEM; + goto error; + } + } + if (!ftdi->bulk_out_endpointAddr && + ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) + == USB_DIR_OUT) && ((endpoint->bmAttributes & + USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_BULK)) + { + ftdi->bulk_out_endpointAddr = + endpoint->bEndpointAddress; + } + } + if (!(ftdi->bulk_in_endpointAddr && ftdi->bulk_out_endpointAddr)) { + dev_err(&ftdi->udev->dev, "Could not find both bulk-in and bulk" + "-out endpoints\n"); + retval = -ENODEV; + goto error; + } + dev_info(&ftdi->udev->dev, "interface %d has I=%02X O=%02X\n", + iface_desc->desc.bInterfaceNumber, ftdi->bulk_in_endpointAddr, + ftdi->bulk_out_endpointAddr); + usb_set_intfdata(interface, ftdi); + if (iface_desc->desc.bInterfaceNumber == 0 && + ftdi->bulk_in_endpointAddr == 0x81 && + ftdi->bulk_out_endpointAddr == 0x02) { + retval = usb_register_dev(interface, &ftdi_elan_jtag_class); + if (retval) { + dev_err(&ftdi->udev->dev, "Not able to get a minor for " + "this device.\n"); + usb_set_intfdata(interface, NULL); + retval = -ENOMEM; + goto error; + } else { + ftdi->class = &ftdi_elan_jtag_class; + dev_info(&ftdi->udev->dev, "USB FDTI=%p JTAG interface " + "%d now attached to ftdi%d\n", ftdi, + iface_desc->desc.bInterfaceNumber, + interface->minor); + return 0; + } + } else if (iface_desc->desc.bInterfaceNumber == 1 && + ftdi->bulk_in_endpointAddr == 0x83 && + ftdi->bulk_out_endpointAddr == 0x04) { + ftdi->class = NULL; + dev_info(&ftdi->udev->dev, "USB FDTI=%p ELAN interface %d now a" + "ctivated\n", ftdi, iface_desc->desc.bInterfaceNumber); + INIT_WORK(&ftdi->status_work, ftdi_elan_status_work, + (void *)ftdi); + INIT_WORK(&ftdi->command_work, ftdi_elan_command_work, + (void *)ftdi); + INIT_WORK(&ftdi->respond_work, ftdi_elan_respond_work, + (void *)ftdi); + ftdi_status_queue_work(ftdi, msecs_to_jiffies(3 *1000)); + return 0; + } else { + dev_err(&ftdi->udev->dev, + "Could not find ELAN's U132 device\n"); + retval = -ENODEV; + goto error; + } + error:if (ftdi) { + ftdi_elan_put_kref(ftdi); + } + return retval; +} + +static void ftdi_elan_disconnect(struct usb_interface *interface) +{ + struct usb_ftdi *ftdi = usb_get_intfdata(interface); + ftdi->disconnected += 1; + if (ftdi->class) { + int minor = interface->minor; + struct usb_class_driver *class = ftdi->class; + usb_set_intfdata(interface, NULL); + usb_deregister_dev(interface, class); + dev_info(&ftdi->udev->dev, "USB FTDI U132 jtag interface on min" + "or %d now disconnected\n", minor); + } else { + ftdi_status_cancel_work(ftdi); + ftdi_command_cancel_work(ftdi); + ftdi_response_cancel_work(ftdi); + ftdi_elan_abandon_completions(ftdi); + ftdi_elan_abandon_targets(ftdi); + if (ftdi->registered) { + platform_device_unregister(&ftdi->platform_dev); + ftdi->synchronized = 0; + ftdi->enumerated = 0; + ftdi->registered = 0; + } + flush_workqueue(status_queue); + flush_workqueue(command_queue); + flush_workqueue(respond_queue); + ftdi->disconnected += 1; + usb_set_intfdata(interface, NULL); + dev_info(&ftdi->udev->dev, "USB FTDI U132 host controller inter" + "face now disconnected\n"); + } + ftdi_elan_put_kref(ftdi); +} + +static struct usb_driver ftdi_elan_driver = { + .name = "ftdi-elan", + .probe = ftdi_elan_probe, + .disconnect = ftdi_elan_disconnect, + .id_table = ftdi_elan_table, +}; +static int __init ftdi_elan_init(void) +{ + int result; + printk(KERN_INFO "driver %s built at %s on %s\n", ftdi_elan_driver.name, + __TIME__, __DATE__); + init_MUTEX(&ftdi_module_lock); + INIT_LIST_HEAD(&ftdi_static_list); + status_queue = create_singlethread_workqueue("ftdi-status-control"); + command_queue = create_singlethread_workqueue("ftdi-command-engine"); + respond_queue = create_singlethread_workqueue("ftdi-respond-engine"); + result = usb_register(&ftdi_elan_driver); + if (result) + printk(KERN_ERR "usb_register failed. Error number %d\n", + result); + return result; +} + +static void __exit ftdi_elan_exit(void) +{ + struct usb_ftdi *ftdi; + struct usb_ftdi *temp; + usb_deregister(&ftdi_elan_driver); + printk(KERN_INFO "ftdi_u132 driver deregistered\n"); + list_for_each_entry_safe(ftdi, temp, &ftdi_static_list, ftdi_list) { + ftdi_status_cancel_work(ftdi); + ftdi_command_cancel_work(ftdi); + ftdi_response_cancel_work(ftdi); + } flush_workqueue(status_queue); + destroy_workqueue(status_queue); + status_queue = NULL; + flush_workqueue(command_queue); + destroy_workqueue(command_queue); + command_queue = NULL; + flush_workqueue(respond_queue); + destroy_workqueue(respond_queue); + respond_queue = NULL; +} + + +module_init(ftdi_elan_init); +module_exit(ftdi_elan_exit);
diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c index fcd69c5..8e6e195 100644 --- a/drivers/usb/misc/idmouse.c +++ b/drivers/usb/misc/idmouse.c
@@ -98,7 +98,7 @@ static void idmouse_disconnect(struct usb_interface *interface); /* file operation pointers */ -static struct file_operations idmouse_fops = { +static const struct file_operations idmouse_fops = { .owner = THIS_MODULE, .read = idmouse_read, .open = idmouse_open,
diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c index f30ab1f..10b6403 100644 --- a/drivers/usb/misc/ldusb.c +++ b/drivers/usb/misc/ldusb.c
@@ -589,7 +589,7 @@ } /* file operations needed when we register this driver */ -static struct file_operations ld_usb_fops = { +static const struct file_operations ld_usb_fops = { .owner = THIS_MODULE, .read = ld_usb_read, .write = ld_usb_write, @@ -657,15 +657,11 @@ for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { endpoint = &iface_desc->endpoint[i].desc; - if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) && - ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) { + if (usb_endpoint_is_int_in(endpoint)) dev->interrupt_in_endpoint = endpoint; - } - if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) && - ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)) { + if (usb_endpoint_is_int_out(endpoint)) dev->interrupt_out_endpoint = endpoint; - } } if (dev->interrupt_in_endpoint == NULL) { dev_err(&intf->dev, "Interrupt in endpoint not found\n");
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c index 7699d97..77c36e6 100644 --- a/drivers/usb/misc/legousbtower.c +++ b/drivers/usb/misc/legousbtower.c
@@ -259,7 +259,7 @@ static DEFINE_MUTEX (disconnect_mutex); /* file operations needed when we register this driver */ -static struct file_operations tower_fops = { +static const struct file_operations tower_fops = { .owner = THIS_MODULE, .read = tower_read, .write = tower_write,
diff --git a/drivers/usb/misc/phidget.c b/drivers/usb/misc/phidget.c new file mode 100644 index 0000000..735ed33 --- /dev/null +++ b/drivers/usb/misc/phidget.c
@@ -0,0 +1,43 @@ +/* + * USB Phidgets class + * + * Copyright (C) 2006 Sean Young <sean@mess.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/device.h> + +struct class *phidget_class; + +static int __init init_phidget(void) +{ + phidget_class = class_create(THIS_MODULE, "phidget"); + + if (IS_ERR(phidget_class)) + return PTR_ERR(phidget_class); + + return 0; +} + +static void __exit cleanup_phidget(void) +{ + class_destroy(phidget_class); +} + +EXPORT_SYMBOL_GPL(phidget_class); + +module_init(init_phidget); +module_exit(cleanup_phidget); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Sean Young <sean@mess.org>"); +MODULE_DESCRIPTION("Container module for phidget class"); +
diff --git a/drivers/usb/misc/phidget.h b/drivers/usb/misc/phidget.h new file mode 100644 index 0000000..c401190 --- /dev/null +++ b/drivers/usb/misc/phidget.h
@@ -0,0 +1,12 @@ +/* + * USB Phidgets class + * + * Copyright (C) 2006 Sean Young <sean@mess.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +extern struct class *phidget_class;
diff --git a/drivers/usb/misc/phidgetkit.c b/drivers/usb/misc/phidgetkit.c index bfbbbfb..9a8d137 100644 --- a/drivers/usb/misc/phidgetkit.c +++ b/drivers/usb/misc/phidgetkit.c
@@ -20,6 +20,8 @@ #include <linux/module.h> #include <linux/usb.h> +#include "phidget.h" + #define DRIVER_AUTHOR "Sean Young <sean@mess.org>" #define DRIVER_DESC "USB PhidgetInterfaceKit Driver" @@ -57,11 +59,15 @@ ifkit(0, 8, 8, 1); ifkit(0, 16, 16, 0); +static unsigned long device_no; + struct interfacekit { struct usb_device *udev; struct usb_interface *intf; struct driver_interfacekit *ifkit; + struct device *dev; unsigned long outputs; + int dev_no; u8 inputs[MAX_INTERFACES]; u16 sensors[MAX_INTERFACES]; u8 lcd_files_on; @@ -180,21 +186,24 @@ } #define set_lcd_line(number) \ -static ssize_t lcd_line_##number(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \ -{ \ - struct usb_interface *intf = to_usb_interface(dev); \ - struct interfacekit *kit = usb_get_intfdata(intf); \ - change_string(kit, buf, number - 1); \ - return count; \ -} \ -static DEVICE_ATTR(lcd_line_##number, S_IWUGO, NULL, lcd_line_##number); +static ssize_t lcd_line_##number(struct device *dev, \ + struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct interfacekit *kit = dev_get_drvdata(dev); \ + change_string(kit, buf, number - 1); \ + return count; \ +} + +#define lcd_line_attr(number) \ + __ATTR(lcd_line_##number, S_IWUGO, NULL, lcd_line_##number) + set_lcd_line(1); set_lcd_line(2); static ssize_t set_backlight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct usb_interface *intf = to_usb_interface(dev); - struct interfacekit *kit = usb_get_intfdata(intf); + struct interfacekit *kit = dev_get_drvdata(dev); int enabled; unsigned char *buffer; int retval = -ENOMEM; @@ -226,23 +235,30 @@ kfree(buffer); return retval; } -static DEVICE_ATTR(backlight, S_IWUGO, NULL, set_backlight); + +static struct device_attribute dev_lcd_line_attrs[] = { + lcd_line_attr(1), + lcd_line_attr(2), + __ATTR(backlight, S_IWUGO, NULL, set_backlight) +}; static void remove_lcd_files(struct interfacekit *kit) { + int i; + if (kit->lcd_files_on) { dev_dbg(&kit->udev->dev, "Removing lcd files\n"); - device_remove_file(&kit->intf->dev, &dev_attr_lcd_line_1); - device_remove_file(&kit->intf->dev, &dev_attr_lcd_line_2); - device_remove_file(&kit->intf->dev, &dev_attr_backlight); + + for (i=0; i<ARRAY_SIZE(dev_lcd_line_attrs); i++) + device_remove_file(kit->dev, &dev_lcd_line_attrs[i]); } } static ssize_t enable_lcd_files(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct usb_interface *intf = to_usb_interface(dev); - struct interfacekit *kit = usb_get_intfdata(intf); + struct interfacekit *kit = dev_get_drvdata(dev); int enable; + int i, rc; if (kit->ifkit->has_lcd == 0) return -ENODEV; @@ -253,9 +269,12 @@ if (enable) { if (!kit->lcd_files_on) { dev_dbg(&kit->udev->dev, "Adding lcd files\n"); - device_create_file(&kit->intf->dev, &dev_attr_lcd_line_1); - device_create_file(&kit->intf->dev, &dev_attr_lcd_line_2); - device_create_file(&kit->intf->dev, &dev_attr_backlight); + for (i=0; i<ARRAY_SIZE(dev_lcd_line_attrs); i++) { + rc = device_create_file(kit->dev, + &dev_lcd_line_attrs[i]); + if (rc) + goto out; + } kit->lcd_files_on = 1; } } else { @@ -266,7 +285,13 @@ } return count; +out: + while (i-- > 0) + device_remove_file(kit->dev, &dev_lcd_line_attrs[i]); + + return rc; } + static DEVICE_ATTR(lcd, S_IWUGO, NULL, enable_lcd_files); static void interfacekit_irq(struct urb *urb, struct pt_regs *regs) @@ -362,24 +387,24 @@ for (i=0; i<kit->ifkit->inputs; i++) { if (test_and_clear_bit(i, &kit->input_events)) { sprintf(sysfs_file, "input%d", i + 1); - sysfs_notify(&kit->intf->dev.kobj, NULL, sysfs_file); + sysfs_notify(&kit->dev->kobj, NULL, sysfs_file); } } for (i=0; i<kit->ifkit->sensors; i++) { if (test_and_clear_bit(i, &kit->sensor_events)) { sprintf(sysfs_file, "sensor%d", i + 1); - sysfs_notify(&kit->intf->dev.kobj, NULL, sysfs_file); + sysfs_notify(&kit->dev->kobj, NULL, sysfs_file); } } } #define show_set_output(value) \ -static ssize_t set_output##value(struct device *dev, struct device_attribute *attr, const char *buf, \ - size_t count) \ +static ssize_t set_output##value(struct device *dev, \ + struct device_attribute *attr, \ + const char *buf, size_t count) \ { \ - struct usb_interface *intf = to_usb_interface(dev); \ - struct interfacekit *kit = usb_get_intfdata(intf); \ + struct interfacekit *kit = dev_get_drvdata(dev); \ int enabled; \ int retval; \ \ @@ -391,15 +416,19 @@ return retval ? retval : count; \ } \ \ -static ssize_t show_output##value(struct device *dev, struct device_attribute *attr, char *buf) \ +static ssize_t show_output##value(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ { \ - struct usb_interface *intf = to_usb_interface(dev); \ - struct interfacekit *kit = usb_get_intfdata(intf); \ + struct interfacekit *kit = dev_get_drvdata(dev); \ \ return sprintf(buf, "%d\n", !!test_bit(value - 1, &kit->outputs));\ -} \ -static DEVICE_ATTR(output##value, S_IWUGO | S_IRUGO, \ - show_output##value, set_output##value); +} + +#define output_attr(value) \ + __ATTR(output##value, S_IWUGO | S_IRUGO, \ + show_output##value, set_output##value) + show_set_output(1); show_set_output(2); show_set_output(3); @@ -417,15 +446,24 @@ show_set_output(15); show_set_output(16); +static struct device_attribute dev_output_attrs[] = { + output_attr(1), output_attr(2), output_attr(3), output_attr(4), + output_attr(5), output_attr(6), output_attr(7), output_attr(8), + output_attr(9), output_attr(10), output_attr(11), output_attr(12), + output_attr(13), output_attr(14), output_attr(15), output_attr(16) +}; + #define show_input(value) \ -static ssize_t show_input##value(struct device *dev, struct device_attribute *attr, char *buf) \ +static ssize_t show_input##value(struct device *dev, \ + struct device_attribute *attr, char *buf) \ { \ - struct usb_interface *intf = to_usb_interface(dev); \ - struct interfacekit *kit = usb_get_intfdata(intf); \ + struct interfacekit *kit = dev_get_drvdata(dev); \ \ return sprintf(buf, "%d\n", (int)kit->inputs[value - 1]); \ -} \ -static DEVICE_ATTR(input##value, S_IRUGO, show_input##value, NULL); +} + +#define input_attr(value) \ + __ATTR(input##value, S_IRUGO, show_input##value, NULL) show_input(1); show_input(2); @@ -444,15 +482,25 @@ show_input(15); show_input(16); +static struct device_attribute dev_input_attrs[] = { + input_attr(1), input_attr(2), input_attr(3), input_attr(4), + input_attr(5), input_attr(6), input_attr(7), input_attr(8), + input_attr(9), input_attr(10), input_attr(11), input_attr(12), + input_attr(13), input_attr(14), input_attr(15), input_attr(16) +}; + #define show_sensor(value) \ -static ssize_t show_sensor##value(struct device *dev, struct device_attribute *attr, char *buf) \ +static ssize_t show_sensor##value(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ { \ - struct usb_interface *intf = to_usb_interface(dev); \ - struct interfacekit *kit = usb_get_intfdata(intf); \ + struct interfacekit *kit = dev_get_drvdata(dev); \ \ return sprintf(buf, "%d\n", (int)kit->sensors[value - 1]); \ -} \ -static DEVICE_ATTR(sensor##value, S_IRUGO, show_sensor##value, NULL); +} + +#define sensor_attr(value) \ + __ATTR(sensor##value, S_IRUGO, show_sensor##value, NULL) show_sensor(1); show_sensor(2); @@ -463,6 +511,11 @@ show_sensor(7); show_sensor(8); +static struct device_attribute dev_sensor_attrs[] = { + sensor_attr(1), sensor_attr(2), sensor_attr(3), sensor_attr(4), + sensor_attr(5), sensor_attr(6), sensor_attr(7), sensor_attr(8) +}; + static int interfacekit_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *dev = interface_to_usbdev(intf); @@ -471,6 +524,7 @@ struct interfacekit *kit; struct driver_interfacekit *ifkit; int pipe, maxp, rc = -ENOMEM; + int bit, value, i; ifkit = (struct driver_interfacekit *)id->driver_info; if (!ifkit) @@ -493,6 +547,7 @@ if (!kit) goto out; + kit->dev_no = -1; kit->ifkit = ifkit; kit->data = usb_buffer_alloc(dev, URB_INT_SIZE, SLAB_ATOMIC, &kit->data_dma); if (!kit->data) @@ -513,85 +568,80 @@ usb_set_intfdata(intf, kit); + do { + bit = find_first_zero_bit(&device_no, sizeof(device_no)); + value = test_and_set_bit(bit, &device_no); + } while(value); + kit->dev_no = bit; + + kit->dev = device_create(phidget_class, &kit->udev->dev, 0, + "interfacekit%d", kit->dev_no); + if (IS_ERR(kit->dev)) { + rc = PTR_ERR(kit->dev); + kit->dev = NULL; + goto out; + } + dev_set_drvdata(kit->dev, kit); + if (usb_submit_urb(kit->irq, GFP_KERNEL)) { rc = -EIO; goto out; } - if (ifkit->outputs >= 4) { - device_create_file(&intf->dev, &dev_attr_output1); - device_create_file(&intf->dev, &dev_attr_output2); - device_create_file(&intf->dev, &dev_attr_output3); - device_create_file(&intf->dev, &dev_attr_output4); - } - if (ifkit->outputs >= 8) { - device_create_file(&intf->dev, &dev_attr_output5); - device_create_file(&intf->dev, &dev_attr_output6); - device_create_file(&intf->dev, &dev_attr_output7); - device_create_file(&intf->dev, &dev_attr_output8); - } - if (ifkit->outputs == 16) { - device_create_file(&intf->dev, &dev_attr_output9); - device_create_file(&intf->dev, &dev_attr_output10); - device_create_file(&intf->dev, &dev_attr_output11); - device_create_file(&intf->dev, &dev_attr_output12); - device_create_file(&intf->dev, &dev_attr_output13); - device_create_file(&intf->dev, &dev_attr_output14); - device_create_file(&intf->dev, &dev_attr_output15); - device_create_file(&intf->dev, &dev_attr_output16); + for (i=0; i<ifkit->outputs; i++ ) { + rc = device_create_file(kit->dev, &dev_output_attrs[i]); + if (rc) + goto out2; } - if (ifkit->inputs >= 4) { - device_create_file(&intf->dev, &dev_attr_input1); - device_create_file(&intf->dev, &dev_attr_input2); - device_create_file(&intf->dev, &dev_attr_input3); - device_create_file(&intf->dev, &dev_attr_input4); - } - if (ifkit->inputs >= 8) { - device_create_file(&intf->dev, &dev_attr_input5); - device_create_file(&intf->dev, &dev_attr_input6); - device_create_file(&intf->dev, &dev_attr_input7); - device_create_file(&intf->dev, &dev_attr_input8); - } - if (ifkit->inputs == 16) { - device_create_file(&intf->dev, &dev_attr_input9); - device_create_file(&intf->dev, &dev_attr_input10); - device_create_file(&intf->dev, &dev_attr_input11); - device_create_file(&intf->dev, &dev_attr_input12); - device_create_file(&intf->dev, &dev_attr_input13); - device_create_file(&intf->dev, &dev_attr_input14); - device_create_file(&intf->dev, &dev_attr_input15); - device_create_file(&intf->dev, &dev_attr_input16); + for (i=0; i<ifkit->inputs; i++ ) { + rc = device_create_file(kit->dev, &dev_input_attrs[i]); + if (rc) + goto out3; } - if (ifkit->sensors >= 4) { - device_create_file(&intf->dev, &dev_attr_sensor1); - device_create_file(&intf->dev, &dev_attr_sensor2); - device_create_file(&intf->dev, &dev_attr_sensor3); - device_create_file(&intf->dev, &dev_attr_sensor4); + for (i=0; i<ifkit->sensors; i++ ) { + rc = device_create_file(kit->dev, &dev_sensor_attrs[i]); + if (rc) + goto out4; } - if (ifkit->sensors >= 7) { - device_create_file(&intf->dev, &dev_attr_sensor5); - device_create_file(&intf->dev, &dev_attr_sensor6); - device_create_file(&intf->dev, &dev_attr_sensor7); - } - if (ifkit->sensors == 8) - device_create_file(&intf->dev, &dev_attr_sensor8); - if (ifkit->has_lcd) - device_create_file(&intf->dev, &dev_attr_lcd); + if (ifkit->has_lcd) { + rc = device_create_file(kit->dev, &dev_attr_lcd); + if (rc) + goto out4; + + } dev_info(&intf->dev, "USB PhidgetInterfaceKit %d/%d/%d attached\n", ifkit->sensors, ifkit->inputs, ifkit->outputs); return 0; +out4: + while (i-- > 0) + device_remove_file(kit->dev, &dev_sensor_attrs[i]); + + i = ifkit->inputs; +out3: + while (i-- > 0) + device_remove_file(kit->dev, &dev_input_attrs[i]); + + i = ifkit->outputs; +out2: + while (i-- > 0) + device_remove_file(kit->dev, &dev_output_attrs[i]); out: if (kit) { if (kit->irq) usb_free_urb(kit->irq); if (kit->data) usb_buffer_free(dev, URB_INT_SIZE, kit->data, kit->data_dma); + if (kit->dev) + device_unregister(kit->dev); + if (kit->dev_no >= 0) + clear_bit(kit->dev_no, &device_no); + kfree(kit); } @@ -601,6 +651,7 @@ static void interfacekit_disconnect(struct usb_interface *interface) { struct interfacekit *kit; + int i; kit = usb_get_intfdata(interface); usb_set_intfdata(interface, NULL); @@ -613,73 +664,28 @@ cancel_delayed_work(&kit->do_notify); - if (kit->ifkit->outputs >= 4) { - device_remove_file(&interface->dev, &dev_attr_output1); - device_remove_file(&interface->dev, &dev_attr_output2); - device_remove_file(&interface->dev, &dev_attr_output3); - device_remove_file(&interface->dev, &dev_attr_output4); - } - if (kit->ifkit->outputs >= 8) { - device_remove_file(&interface->dev, &dev_attr_output5); - device_remove_file(&interface->dev, &dev_attr_output6); - device_remove_file(&interface->dev, &dev_attr_output7); - device_remove_file(&interface->dev, &dev_attr_output8); - } - if (kit->ifkit->outputs == 16) { - device_remove_file(&interface->dev, &dev_attr_output9); - device_remove_file(&interface->dev, &dev_attr_output10); - device_remove_file(&interface->dev, &dev_attr_output11); - device_remove_file(&interface->dev, &dev_attr_output12); - device_remove_file(&interface->dev, &dev_attr_output13); - device_remove_file(&interface->dev, &dev_attr_output14); - device_remove_file(&interface->dev, &dev_attr_output15); - device_remove_file(&interface->dev, &dev_attr_output16); + for (i=0; i<kit->ifkit->outputs; i++) + device_remove_file(kit->dev, &dev_output_attrs[i]); + + for (i=0; i<kit->ifkit->inputs; i++) + device_remove_file(kit->dev, &dev_input_attrs[i]); + + for (i=0; i<kit->ifkit->sensors; i++) + device_remove_file(kit->dev, &dev_sensor_attrs[i]); + + if (kit->ifkit->has_lcd) { + device_remove_file(kit->dev, &dev_attr_lcd); + remove_lcd_files(kit); } - if (kit->ifkit->inputs >= 4) { - device_remove_file(&interface->dev, &dev_attr_input1); - device_remove_file(&interface->dev, &dev_attr_input2); - device_remove_file(&interface->dev, &dev_attr_input3); - device_remove_file(&interface->dev, &dev_attr_input4); - } - if (kit->ifkit->inputs >= 8) { - device_remove_file(&interface->dev, &dev_attr_input5); - device_remove_file(&interface->dev, &dev_attr_input6); - device_remove_file(&interface->dev, &dev_attr_input7); - device_remove_file(&interface->dev, &dev_attr_input8); - } - if (kit->ifkit->inputs == 16) { - device_remove_file(&interface->dev, &dev_attr_input9); - device_remove_file(&interface->dev, &dev_attr_input10); - device_remove_file(&interface->dev, &dev_attr_input11); - device_remove_file(&interface->dev, &dev_attr_input12); - device_remove_file(&interface->dev, &dev_attr_input13); - device_remove_file(&interface->dev, &dev_attr_input14); - device_remove_file(&interface->dev, &dev_attr_input15); - device_remove_file(&interface->dev, &dev_attr_input16); - } - - if (kit->ifkit->sensors >= 4) { - device_remove_file(&interface->dev, &dev_attr_sensor1); - device_remove_file(&interface->dev, &dev_attr_sensor2); - device_remove_file(&interface->dev, &dev_attr_sensor3); - device_remove_file(&interface->dev, &dev_attr_sensor4); - } - if (kit->ifkit->sensors >= 7) { - device_remove_file(&interface->dev, &dev_attr_sensor5); - device_remove_file(&interface->dev, &dev_attr_sensor6); - device_remove_file(&interface->dev, &dev_attr_sensor7); - } - if (kit->ifkit->sensors == 8) - device_remove_file(&interface->dev, &dev_attr_sensor8); - - if (kit->ifkit->has_lcd) - device_remove_file(&interface->dev, &dev_attr_lcd); + device_unregister(kit->dev); dev_info(&interface->dev, "USB PhidgetInterfaceKit %d/%d/%d detached\n", kit->ifkit->sensors, kit->ifkit->inputs, kit->ifkit->outputs); usb_put_dev(kit->udev); + clear_bit(kit->dev_no, &device_no); + kfree(kit); }
diff --git a/drivers/usb/misc/phidgetmotorcontrol.c b/drivers/usb/misc/phidgetmotorcontrol.c new file mode 100644 index 0000000..6b59b62 --- /dev/null +++ b/drivers/usb/misc/phidgetmotorcontrol.c
@@ -0,0 +1,466 @@ +/* + * USB Phidget MotorControl driver + * + * Copyright (C) 2006 Sean Young <sean@mess.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/usb.h> + +#include "phidget.h" + +#define DRIVER_AUTHOR "Sean Young <sean@mess.org>" +#define DRIVER_DESC "USB PhidgetMotorControl Driver" + +#define USB_VENDOR_ID_GLAB 0x06c2 +#define USB_DEVICE_ID_MOTORCONTROL 0x0058 + +#define URB_INT_SIZE 8 + +static unsigned long device_no; + +struct motorcontrol { + struct usb_device *udev; + struct usb_interface *intf; + struct device *dev; + int dev_no; + u8 inputs[4]; + s8 desired_speed[2]; + s8 speed[2]; + s16 _current[2]; + s8 acceleration[2]; + struct urb *irq; + unsigned char *data; + dma_addr_t data_dma; + + struct work_struct do_notify; + unsigned long input_events; + unsigned long speed_events; + unsigned long exceed_events; +}; + +static struct usb_device_id id_table[] = { + { USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_MOTORCONTROL) }, + {} +}; +MODULE_DEVICE_TABLE(usb, id_table); + +static int set_motor(struct motorcontrol *mc, int motor) +{ + u8 *buffer; + int speed, speed2, acceleration; + int retval; + + buffer = kzalloc(8, GFP_KERNEL); + if (!buffer) { + dev_err(&mc->intf->dev, "%s - out of memory\n", __FUNCTION__); + return -ENOMEM; + } + + acceleration = mc->acceleration[motor] * 10; + /* -127 <= speed <= 127 */ + speed = (mc->desired_speed[motor] * 127) / 100; + /* -0x7300 <= speed2 <= 0x7300 */ + speed2 = (mc->desired_speed[motor] * 230 * 128) / 100; + + buffer[0] = motor; + buffer[1] = speed; + buffer[2] = acceleration >> 8; + buffer[3] = acceleration; + buffer[4] = speed2 >> 8; + buffer[5] = speed2; + + retval = usb_control_msg(mc->udev, + usb_sndctrlpipe(mc->udev, 0), + 0x09, 0x21, 0x0200, 0x0000, buffer, 8, 2000); + + if (retval != 8) + dev_err(&mc->intf->dev, "usb_control_msg returned %d\n", + retval); + kfree(buffer); + + return retval < 0 ? retval : 0; +} + +static void motorcontrol_irq(struct urb *urb, struct pt_regs *regs) +{ + struct motorcontrol *mc = urb->context; + unsigned char *buffer = mc->data; + int i, level; + int status; + + switch (urb->status) { + case 0: /* success */ + break; + case -ECONNRESET: /* unlink */ + case -ENOENT: + case -ESHUTDOWN: + return; + /* -EPIPE: should clear the halt */ + default: /* error */ + goto resubmit; + } + + /* digital inputs */ + for (i=0; i<4; i++) { + level = (buffer[0] >> i) & 1; + if (mc->inputs[i] != level) { + mc->inputs[i] = level; + set_bit(i, &mc->input_events); + } + } + + /* motor speed */ + if (buffer[2] == 0) { + for (i=0; i<2; i++) { + level = ((s8)buffer[4+i]) * 100 / 127; + if (mc->speed[i] != level) { + mc->speed[i] = level; + set_bit(i, &mc->speed_events); + } + } + } else { + int index = buffer[3] & 1; + + level = ((s8)buffer[4] << 8) | buffer[5]; + level = level * 100 / 29440; + if (mc->speed[index] != level) { + mc->speed[index] = level; + set_bit(index, &mc->speed_events); + } + + level = ((s8)buffer[6] << 8) | buffer[7]; + mc->_current[index] = level * 100 / 1572; + } + + if (buffer[1] & 1) + set_bit(0, &mc->exceed_events); + + if (buffer[1] & 2) + set_bit(1, &mc->exceed_events); + + if (mc->input_events || mc->exceed_events || mc->speed_events) + schedule_work(&mc->do_notify); + +resubmit: + status = usb_submit_urb(urb, SLAB_ATOMIC); + if (status) + dev_err(&mc->intf->dev, + "can't resubmit intr, %s-%s/motorcontrol0, status %d", + mc->udev->bus->bus_name, + mc->udev->devpath, status); +} + +static void do_notify(void *data) +{ + struct motorcontrol *mc = data; + int i; + char sysfs_file[8]; + + for (i=0; i<4; i++) { + if (test_and_clear_bit(i, &mc->input_events)) { + sprintf(sysfs_file, "input%d", i); + sysfs_notify(&mc->dev->kobj, NULL, sysfs_file); + } + } + + for (i=0; i<2; i++) { + if (test_and_clear_bit(i, &mc->speed_events)) { + sprintf(sysfs_file, "speed%d", i); + sysfs_notify(&mc->dev->kobj, NULL, sysfs_file); + } + } + + for (i=0; i<2; i++) { + if (test_and_clear_bit(i, &mc->exceed_events)) + dev_warn(&mc->intf->dev, + "motor #%d exceeds 1.5 Amp current limit\n", i); + } +} + +#define show_set_speed(value) \ +static ssize_t set_speed##value(struct device *dev, \ + struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct motorcontrol *mc = dev_get_drvdata(dev); \ + int speed; \ + int retval; \ + \ + if (sscanf(buf, "%d", &speed) < 1) \ + return -EINVAL; \ + \ + if (speed < -100 || speed > 100) \ + return -EINVAL; \ + \ + mc->desired_speed[value] = speed; \ + \ + retval = set_motor(mc, value); \ + \ + return retval ? retval : count; \ +} \ + \ +static ssize_t show_speed##value(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + struct motorcontrol *mc = dev_get_drvdata(dev); \ + \ + return sprintf(buf, "%d\n", mc->speed[value]); \ +} + +#define speed_attr(value) \ + __ATTR(speed##value, S_IWUGO | S_IRUGO, \ + show_speed##value, set_speed##value) + +show_set_speed(0); +show_set_speed(1); + +#define show_set_acceleration(value) \ +static ssize_t set_acceleration##value(struct device *dev, \ + struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct motorcontrol *mc = dev_get_drvdata(dev); \ + int acceleration; \ + int retval; \ + \ + if (sscanf(buf, "%d", &acceleration) < 1) \ + return -EINVAL; \ + \ + if (acceleration < 0 || acceleration > 100) \ + return -EINVAL; \ + \ + mc->acceleration[value] = acceleration; \ + \ + retval = set_motor(mc, value); \ + \ + return retval ? retval : count; \ +} \ + \ +static ssize_t show_acceleration##value(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + struct motorcontrol *mc = dev_get_drvdata(dev); \ + \ + return sprintf(buf, "%d\n", mc->acceleration[value]); \ +} + +#define acceleration_attr(value) \ + __ATTR(acceleration##value, S_IWUGO | S_IRUGO, \ + show_acceleration##value, set_acceleration##value) + +show_set_acceleration(0); +show_set_acceleration(1); + +#define show_current(value) \ +static ssize_t show_current##value(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + struct motorcontrol *mc = dev_get_drvdata(dev); \ + \ + return sprintf(buf, "%dmA\n", (int)mc->_current[value]); \ +} + +#define current_attr(value) \ + __ATTR(current##value, S_IRUGO, show_current##value, NULL) + +show_current(0); +show_current(1); + +#define show_input(value) \ +static ssize_t show_input##value(struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + struct motorcontrol *mc = dev_get_drvdata(dev); \ + \ + return sprintf(buf, "%d\n", (int)mc->inputs[value]); \ +} + +#define input_attr(value) \ + __ATTR(input##value, S_IRUGO, show_input##value, NULL) + +show_input(0); +show_input(1); +show_input(2); +show_input(3); + +static struct device_attribute dev_attrs[] = { + input_attr(0), + input_attr(1), + input_attr(2), + input_attr(3), + speed_attr(0), + speed_attr(1), + acceleration_attr(0), + acceleration_attr(1), + current_attr(0), + current_attr(1) +}; + +static int motorcontrol_probe(struct usb_interface *intf, const struct usb_device_id *id) +{ + struct usb_device *dev = interface_to_usbdev(intf); + struct usb_host_interface *interface; + struct usb_endpoint_descriptor *endpoint; + struct motorcontrol *mc; + int pipe, maxp, rc = -ENOMEM; + int bit, value, i; + + interface = intf->cur_altsetting; + if (interface->desc.bNumEndpoints != 1) + return -ENODEV; + + endpoint = &interface->endpoint[0].desc; + if (!(endpoint->bEndpointAddress & 0x80)) + return -ENODEV; + + /* + * bmAttributes + */ + pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); + maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); + + mc = kzalloc(sizeof(*mc), GFP_KERNEL); + if (!mc) + goto out; + + mc->dev_no = -1; + mc->data = usb_buffer_alloc(dev, URB_INT_SIZE, SLAB_ATOMIC, &mc->data_dma); + if (!mc->data) + goto out; + + mc->irq = usb_alloc_urb(0, GFP_KERNEL); + if (!mc->irq) + goto out; + + mc->udev = usb_get_dev(dev); + mc->intf = intf; + mc->acceleration[0] = mc->acceleration[1] = 10; + INIT_WORK(&mc->do_notify, do_notify, mc); + usb_fill_int_urb(mc->irq, mc->udev, pipe, mc->data, + maxp > URB_INT_SIZE ? URB_INT_SIZE : maxp, + motorcontrol_irq, mc, endpoint->bInterval); + mc->irq->transfer_dma = mc->data_dma; + mc->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + usb_set_intfdata(intf, mc); + + do { + bit = find_first_zero_bit(&device_no, sizeof(device_no)); + value = test_and_set_bit(bit, &device_no); + } while(value); + mc->dev_no = bit; + + mc->dev = device_create(phidget_class, &mc->udev->dev, 0, + "motorcontrol%d", mc->dev_no); + if (IS_ERR(mc->dev)) { + rc = PTR_ERR(mc->dev); + mc->dev = NULL; + goto out; + } + + dev_set_drvdata(mc->dev, mc); + + if (usb_submit_urb(mc->irq, GFP_KERNEL)) { + rc = -EIO; + goto out; + } + + for (i=0; i<ARRAY_SIZE(dev_attrs); i++) { + rc = device_create_file(mc->dev, &dev_attrs[i]); + if (rc) + goto out2; + } + + dev_info(&intf->dev, "USB PhidgetMotorControl attached\n"); + + return 0; +out2: + while (i-- > 0) + device_remove_file(mc->dev, &dev_attrs[i]); +out: + if (mc) { + if (mc->irq) + usb_free_urb(mc->irq); + if (mc->data) + usb_buffer_free(dev, URB_INT_SIZE, mc->data, mc->data_dma); + if (mc->dev) + device_unregister(mc->dev); + if (mc->dev_no >= 0) + clear_bit(mc->dev_no, &device_no); + + kfree(mc); + } + + return rc; +} + +static void motorcontrol_disconnect(struct usb_interface *interface) +{ + struct motorcontrol *mc; + int i; + + mc = usb_get_intfdata(interface); + usb_set_intfdata(interface, NULL); + if (!mc) + return; + + usb_kill_urb(mc->irq); + usb_free_urb(mc->irq); + usb_buffer_free(mc->udev, URB_INT_SIZE, mc->data, mc->data_dma); + + cancel_delayed_work(&mc->do_notify); + + for (i=0; i<ARRAY_SIZE(dev_attrs); i++) + device_remove_file(mc->dev, &dev_attrs[i]); + + device_unregister(mc->dev); + + usb_put_dev(mc->udev); + clear_bit(mc->dev_no, &device_no); + kfree(mc); + + dev_info(&interface->dev, "USB PhidgetMotorControl detached\n"); +} + +static struct usb_driver motorcontrol_driver = { + .name = "phidgetmotorcontrol", + .probe = motorcontrol_probe, + .disconnect = motorcontrol_disconnect, + .id_table = id_table +}; + +static int __init motorcontrol_init(void) +{ + int retval = 0; + + retval = usb_register(&motorcontrol_driver); + if (retval) + err("usb_register failed. Error number %d", retval); + + return retval; +} + +static void __exit motorcontrol_exit(void) +{ + usb_deregister(&motorcontrol_driver); +} + +module_init(motorcontrol_init); +module_exit(motorcontrol_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL");
diff --git a/drivers/usb/misc/phidgetservo.c b/drivers/usb/misc/phidgetservo.c index c0df79c9..7163f05 100644 --- a/drivers/usb/misc/phidgetservo.c +++ b/drivers/usb/misc/phidgetservo.c
@@ -1,7 +1,7 @@ /* * USB PhidgetServo driver 1.0 * - * Copyright (C) 2004 Sean Young <sean@mess.org> + * Copyright (C) 2004, 2006 Sean Young <sean@mess.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -15,14 +15,6 @@ * * CAUTION: Generally you should use 0 < degrees < 180 as anything else * is probably beyond the range of your servo and may damage it. - * - * Jun 16, 2004: Sean Young <sean@mess.org> - * - cleanups - * - was using memory after kfree() - * Aug 8, 2004: Sean Young <sean@mess.org> - * - set the highest angle as high as the hardware allows, there are - * some odd servos out there - * */ #include <linux/kernel.h> @@ -32,6 +24,8 @@ #include <linux/module.h> #include <linux/usb.h> +#include "phidget.h" + #define DRIVER_AUTHOR "Sean Young <sean@mess.org>" #define DRIVER_DESC "USB PhidgetServo Driver" @@ -70,8 +64,12 @@ MODULE_DEVICE_TABLE(usb, id_table); +static int unsigned long device_no; + struct phidget_servo { struct usb_device *udev; + struct device *dev; + int dev_no; ulong type; int pulse[4]; int degrees[4]; @@ -203,16 +201,16 @@ } #define show_set(value) \ -static ssize_t set_servo##value (struct device *dev, struct device_attribute *attr, \ +static ssize_t set_servo##value (struct device *dev, \ + struct device_attribute *attr, \ const char *buf, size_t count) \ { \ int degrees, minutes, retval; \ - struct usb_interface *intf = to_usb_interface (dev); \ - struct phidget_servo *servo = usb_get_intfdata (intf); \ + struct phidget_servo *servo = dev_get_drvdata(dev); \ \ minutes = 0; \ /* must at least convert degrees */ \ - if (sscanf (buf, "%d.%d", °rees, &minutes) < 1) { \ + if (sscanf(buf, "%d.%d", °rees, &minutes) < 1) { \ return -EINVAL; \ } \ \ @@ -220,86 +218,127 @@ return -EINVAL; \ \ if (servo->type & SERVO_VERSION_30) \ - retval = change_position_v30 (servo, value, degrees, \ + retval = change_position_v30(servo, value, degrees, \ minutes); \ else \ - retval = change_position_v20 (servo, value, degrees, \ + retval = change_position_v20(servo, value, degrees, \ minutes); \ \ return retval < 0 ? retval : count; \ } \ \ -static ssize_t show_servo##value (struct device *dev, struct device_attribute *attr, char *buf) \ +static ssize_t show_servo##value (struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ { \ - struct usb_interface *intf = to_usb_interface (dev); \ - struct phidget_servo *servo = usb_get_intfdata (intf); \ + struct phidget_servo *servo = dev_get_drvdata(dev); \ \ - return sprintf (buf, "%d.%02d\n", servo->degrees[value], \ + return sprintf(buf, "%d.%02d\n", servo->degrees[value], \ servo->minutes[value]); \ -} \ -static DEVICE_ATTR(servo##value, S_IWUGO | S_IRUGO, \ - show_servo##value, set_servo##value); +} +#define servo_attr(value) \ + __ATTR(servo##value, S_IWUGO | S_IRUGO, \ + show_servo##value, set_servo##value) show_set(0); show_set(1); show_set(2); show_set(3); +static struct device_attribute dev_attrs[] = { + servo_attr(0), servo_attr(1), servo_attr(2), servo_attr(3) +}; + static int servo_probe(struct usb_interface *interface, const struct usb_device_id *id) { struct usb_device *udev = interface_to_usbdev(interface); struct phidget_servo *dev; + int bit, value, rc; + int servo_count, i; dev = kzalloc(sizeof (struct phidget_servo), GFP_KERNEL); if (dev == NULL) { dev_err(&interface->dev, "%s - out of memory\n", __FUNCTION__); - return -ENOMEM; + rc = -ENOMEM; + goto out; } dev->udev = usb_get_dev(udev); dev->type = id->driver_info; + dev->dev_no = -1; usb_set_intfdata(interface, dev); - device_create_file(&interface->dev, &dev_attr_servo0); - if (dev->type & SERVO_COUNT_QUAD) { - device_create_file(&interface->dev, &dev_attr_servo1); - device_create_file(&interface->dev, &dev_attr_servo2); - device_create_file(&interface->dev, &dev_attr_servo3); + do { + bit = find_first_zero_bit(&device_no, sizeof(device_no)); + value = test_and_set_bit(bit, &device_no); + } while (value); + dev->dev_no = bit; + + dev->dev = device_create(phidget_class, &dev->udev->dev, 0, + "servo%d", dev->dev_no); + if (IS_ERR(dev->dev)) { + rc = PTR_ERR(dev->dev); + dev->dev = NULL; + goto out; + } + + servo_count = dev->type & SERVO_COUNT_QUAD ? 4 : 1; + + for (i=0; i<servo_count; i++) { + rc = device_create_file(dev->dev, &dev_attrs[i]); + if (rc) + goto out2; } dev_info(&interface->dev, "USB %d-Motor PhidgetServo v%d.0 attached\n", - dev->type & SERVO_COUNT_QUAD ? 4 : 1, - dev->type & SERVO_VERSION_30 ? 3 : 2); + servo_count, dev->type & SERVO_VERSION_30 ? 3 : 2); - if(!(dev->type & SERVO_VERSION_30)) + if (!(dev->type & SERVO_VERSION_30)) dev_info(&interface->dev, "WARNING: v2.0 not tested! Please report if it works.\n"); return 0; +out2: + while (i-- > 0) + device_remove_file(dev->dev, &dev_attrs[i]); +out: + if (dev) { + if (dev->dev) + device_unregister(dev->dev); + if (dev->dev_no >= 0) + clear_bit(dev->dev_no, &device_no); + + kfree(dev); + } + + return rc; } static void servo_disconnect(struct usb_interface *interface) { struct phidget_servo *dev; + int servo_count, i; dev = usb_get_intfdata(interface); usb_set_intfdata(interface, NULL); - device_remove_file(&interface->dev, &dev_attr_servo0); - if (dev->type & SERVO_COUNT_QUAD) { - device_remove_file(&interface->dev, &dev_attr_servo1); - device_remove_file(&interface->dev, &dev_attr_servo2); - device_remove_file(&interface->dev, &dev_attr_servo3); - } + if (!dev) + return; + servo_count = dev->type & SERVO_COUNT_QUAD ? 4 : 1; + + for (i=0; i<servo_count; i++) + device_remove_file(dev->dev, &dev_attrs[i]); + + device_unregister(dev->dev); usb_put_dev(dev->udev); dev_info(&interface->dev, "USB %d-Motor PhidgetServo v%d.0 detached\n", - dev->type & SERVO_COUNT_QUAD ? 4 : 1, - dev->type & SERVO_VERSION_30 ? 3 : 2); + servo_count, dev->type & SERVO_VERSION_30 ? 3 : 2); + clear_bit(dev->dev_no, &device_no); kfree(dev); }
diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index e16582f..a44124c 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -3179,7 +3179,7 @@ } #endif -static struct file_operations usb_sisusb_fops = { +static const struct file_operations usb_sisusb_fops = { .owner = THIS_MODULE, .open = sisusb_open, .release = sisusb_release,
diff --git a/drivers/usb/misc/usb_u132.h b/drivers/usb/misc/usb_u132.h new file mode 100644 index 0000000..551ba89 --- /dev/null +++ b/drivers/usb/misc/usb_u132.h
@@ -0,0 +1,97 @@ +/* +* Common Header File for the Elan Digital Systems U132 adapter +* this file should be included by both the "ftdi-u132" and +* the "u132-hcd" modules. +* +* Copyright(C) 2006 Elan Digital Systems Limited +*(http://www.elandigitalsystems.com) +* +* Author and Maintainer - Tony Olech - Elan Digital Systems +*(tony.olech@elandigitalsystems.com) +* +* This program is free software;you can redistribute it and/or +* modify it under the terms of the GNU General Public License as +* published by the Free Software Foundation, version 2. +* +* +* The driver was written by Tony Olech(tony.olech@elandigitalsystems.com) +* based on various USB client drivers in the 2.6.15 linux kernel +* with constant reference to the 3rd Edition of Linux Device Drivers +* published by O'Reilly +* +* The U132 adapter is a USB to CardBus adapter specifically designed +* for PC cards that contain an OHCI host controller. Typical PC cards +* are the Orange Mobile 3G Option GlobeTrotter Fusion card. +* +* The U132 adapter will *NOT *work with PC cards that do not contain +* an OHCI controller. A simple way to test whether a PC card has an +* OHCI controller as an interface is to insert the PC card directly +* into a laptop(or desktop) with a CardBus slot and if "lspci" shows +* a new USB controller and "lsusb -v" shows a new OHCI Host Controller +* then there is a good chance that the U132 adapter will support the +* PC card.(you also need the specific client driver for the PC card) +* +* Please inform the Author and Maintainer about any PC cards that +* contain OHCI Host Controller and work when directly connected to +* an embedded CardBus slot but do not work when they are connected +* via an ELAN U132 adapter. +* +* The driver consists of two modules, the "ftdi-u132" module is +* a USB client driver that interfaces to the FTDI chip within +* the U132 adapter manufactured by Elan Digital Systems, and the +* "u132-hcd" module is a USB host controller driver that talks +* to the OHCI controller within CardBus card that are inserted +* in the U132 adapter. +* +* The "ftdi-u132" module should be loaded automatically by the +* hot plug system when the U132 adapter is plugged in. The module +* initialises the adapter which mostly consists of synchronising +* the FTDI chip, before continuously polling the adapter to detect +* PC card insertions. As soon as a PC card containing a recognised +* OHCI controller is seen the "ftdi-u132" module explicitly requests +* the kernel to load the "u132-hcd" module. +* +* The "ftdi-u132" module provides the interface to the inserted +* PC card and the "u132-hcd" module uses the API to send and recieve +* data. The API features call-backs, so that part of the "u132-hcd" +* module code will run in the context of one of the kernel threads +* of the "ftdi-u132" module. +* +*/ +int ftdi_elan_switch_on_diagnostics(int number); +void ftdi_elan_gone_away(struct platform_device *pdev); +void start_usb_lock_device_tracing(void); +struct u132_platform_data { + u16 vendor; + u16 device; + u8 potpg; + void (*port_power) (struct device *dev, int is_on); + void (*reset) (struct device *dev); +}; +int usb_ftdi_elan_edset_single(struct platform_device *pdev, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)); +int usb_ftdi_elan_edset_output(struct platform_device *pdev, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)); +int usb_ftdi_elan_edset_empty(struct platform_device *pdev, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)); +int usb_ftdi_elan_edset_input(struct platform_device *pdev, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)); +int usb_ftdi_elan_edset_setup(struct platform_device *pdev, u8 ed_number, + void *endp, struct urb *urb, u8 address, u8 ep_number, u8 toggle_bits, + void (*callback) (void *endp, struct urb *urb, u8 *buf, int len, + int toggle_bits, int error_count, int condition_code, int repeat_number, + int halted, int skipped, int actual, int non_null)); +int usb_ftdi_elan_edset_flush(struct platform_device *pdev, u8 ed_number, + void *endp);
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c index e095772..dbaca9f 100644 --- a/drivers/usb/misc/usblcd.c +++ b/drivers/usb/misc/usblcd.c
@@ -239,7 +239,7 @@ return retval; } -static struct file_operations lcd_fops = { +static const struct file_operations lcd_fops = { .owner = THIS_MODULE, .read = lcd_read, .write = lcd_write, @@ -290,9 +290,7 @@ endpoint = &iface_desc->endpoint[i].desc; if (!dev->bulk_in_endpointAddr && - (endpoint->bEndpointAddress & USB_DIR_IN) && - ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) - == USB_ENDPOINT_XFER_BULK)) { + usb_endpoint_is_bulk_in(endpoint)) { /* we found a bulk in endpoint */ buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); dev->bulk_in_size = buffer_size; @@ -305,9 +303,7 @@ } if (!dev->bulk_out_endpointAddr && - !(endpoint->bEndpointAddress & USB_DIR_IN) && - ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) - == USB_ENDPOINT_XFER_BULK)) { + usb_endpoint_is_bulk_out(endpoint)) { /* we found a bulk out endpoint */ dev->bulk_out_endpointAddr = endpoint->bEndpointAddress; }
diff --git a/drivers/usb/misc/usbled.c b/drivers/usb/misc/usbled.c index 0c5ee0a..49c5c5c 100644 --- a/drivers/usb/misc/usbled.c +++ b/drivers/usb/misc/usbled.c
@@ -108,22 +108,34 @@ dev = kzalloc(sizeof(struct usb_led), GFP_KERNEL); if (dev == NULL) { dev_err(&interface->dev, "Out of memory\n"); - goto error; + goto error_mem; } dev->udev = usb_get_dev(udev); usb_set_intfdata (interface, dev); - device_create_file(&interface->dev, &dev_attr_blue); - device_create_file(&interface->dev, &dev_attr_red); - device_create_file(&interface->dev, &dev_attr_green); + retval = device_create_file(&interface->dev, &dev_attr_blue); + if (retval) + goto error; + retval = device_create_file(&interface->dev, &dev_attr_red); + if (retval) + goto error; + retval = device_create_file(&interface->dev, &dev_attr_green); + if (retval) + goto error; dev_info(&interface->dev, "USB LED device now attached\n"); return 0; error: + device_remove_file(&interface->dev, &dev_attr_blue); + device_remove_file(&interface->dev, &dev_attr_red); + device_remove_file(&interface->dev, &dev_attr_green); + usb_set_intfdata (interface, NULL); + usb_put_dev(dev->udev); kfree(dev); +error_mem: return retval; }
diff --git a/drivers/usb/mon/mon_main.c b/drivers/usb/mon/mon_main.c index 275a66f..394bbf2 100644 --- a/drivers/usb/mon/mon_main.c +++ b/drivers/usb/mon/mon_main.c
@@ -265,7 +265,6 @@ ubus->mon_bus = NULL; mbus->u_bus = NULL; mb(); - // usb_bus_put(ubus); } /* @@ -297,12 +296,12 @@ INIT_LIST_HEAD(&mbus->r_list); /* - * This usb_bus_get here is superfluous, because we receive - * a notification if usb_bus is about to be removed. + * We don't need to take a reference to ubus, because we receive + * a notification if the bus is about to be removed. */ - // usb_bus_get(ubus); mbus->u_bus = ubus; ubus->mon_bus = mbus; + mbus->uses_dma = ubus->uses_dma; rc = snprintf(name, NAMESZ, "%dt", ubus->busnum); if (rc <= 0 || rc >= NAMESZ)
diff --git a/drivers/usb/mon/mon_stat.c b/drivers/usb/mon/mon_stat.c index 1fe01d9..f6d1491 100644 --- a/drivers/usb/mon/mon_stat.c +++ b/drivers/usb/mon/mon_stat.c
@@ -28,7 +28,7 @@ if ((sp = kmalloc(sizeof(struct snap), GFP_KERNEL)) == NULL) return -ENOMEM; - mbus = inode->u.generic_ip; + mbus = inode->i_private; sp->slen = snprintf(sp->str, STAT_BUF_SIZE, "nreaders %d events %u text_lost %u\n", @@ -62,7 +62,7 @@ return 0; } -struct file_operations mon_fops_stat = { +const struct file_operations mon_fops_stat = { .owner = THIS_MODULE, .open = mon_stat_open, .llseek = no_llseek,
diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c index f961a77..7a2346c 100644 --- a/drivers/usb/mon/mon_text.c +++ b/drivers/usb/mon/mon_text.c
@@ -75,13 +75,13 @@ */ static inline char mon_text_get_setup(struct mon_event_text *ep, - struct urb *urb, char ev_type) + struct urb *urb, char ev_type, struct mon_bus *mbus) { if (!usb_pipecontrol(urb->pipe) || ev_type != 'S') return '-'; - if (urb->transfer_flags & URB_NO_SETUP_DMA_MAP) + if (mbus->uses_dma && (urb->transfer_flags & URB_NO_SETUP_DMA_MAP)) return mon_dmapeek(ep->setup, urb->setup_dma, SETUP_MAX); if (urb->setup_packet == NULL) return 'Z'; /* '0' would be not as pretty. */ @@ -91,7 +91,7 @@ } static inline char mon_text_get_data(struct mon_event_text *ep, struct urb *urb, - int len, char ev_type) + int len, char ev_type, struct mon_bus *mbus) { int pipe = urb->pipe; @@ -117,7 +117,7 @@ * contain non-NULL garbage in case the upper level promised to * set DMA for the HCD. */ - if (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP) + if (mbus->uses_dma && (urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) return mon_dmapeek(ep->data, urb->transfer_dma, len); if (urb->transfer_buffer == NULL) @@ -161,8 +161,9 @@ /* Collecting status makes debugging sense for submits, too */ ep->status = urb->status; - ep->setup_flag = mon_text_get_setup(ep, urb, ev_type); - ep->data_flag = mon_text_get_data(ep, urb, ep->length, ev_type); + ep->setup_flag = mon_text_get_setup(ep, urb, ev_type, rp->r.m_bus); + ep->data_flag = mon_text_get_data(ep, urb, ep->length, ev_type, + rp->r.m_bus); rp->nevents++; list_add_tail(&ep->e_link, &rp->e_list); @@ -238,7 +239,7 @@ int rc; mutex_lock(&mon_lock); - mbus = inode->u.generic_ip; + mbus = inode->i_private; ubus = mbus->u_bus; rp = kzalloc(sizeof(struct mon_reader_text), GFP_KERNEL); @@ -401,7 +402,7 @@ struct mon_event_text *ep; mutex_lock(&mon_lock); - mbus = inode->u.generic_ip; + mbus = inode->i_private; if (mbus->nreaders <= 0) { printk(KERN_ERR TAG ": consistency error on close\n"); @@ -435,7 +436,7 @@ return 0; } -struct file_operations mon_fops_text = { +const struct file_operations mon_fops_text = { .owner = THIS_MODULE, .open = mon_text_open, .llseek = no_llseek,
diff --git a/drivers/usb/mon/usb_mon.h b/drivers/usb/mon/usb_mon.h index 33678c2..ab9d02d 100644 --- a/drivers/usb/mon/usb_mon.h +++ b/drivers/usb/mon/usb_mon.h
@@ -20,6 +20,7 @@ struct dentry *dent_s; /* Debugging file */ struct dentry *dent_t; /* Text interface file */ struct usb_bus *u_bus; + int uses_dma; /* Ref */ int nreaders; /* Under mon_lock AND mbus->lock */ @@ -53,7 +54,7 @@ extern struct mutex mon_lock; -extern struct file_operations mon_fops_text; -extern struct file_operations mon_fops_stat; +extern const struct file_operations mon_fops_text; +extern const struct file_operations mon_fops_stat; #endif /* __USB_MON_H */
diff --git a/drivers/usb/net/asix.c b/drivers/usb/net/asix.c index 2e2bbc00..9b97aa6 100644 --- a/drivers/usb/net/asix.c +++ b/drivers/usb/net/asix.c
@@ -1,7 +1,8 @@ /* * ASIX AX8817X based USB 2.0 Ethernet Devices - * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com> + * Copyright (C) 2003-2006 David Hollis <dhollis@davehollis.com> * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net> + * Copyright (C) 2006 James Painter <jamie.painter@iname.com> * Copyright (c) 2002-2003 TiVo Inc. * * This program is free software; you can redistribute it and/or modify @@ -36,6 +37,9 @@ #include "usbnet.h" +#define DRIVER_VERSION "14-Jun-2006" +static const char driver_name [] = "asix"; + /* ASIX AX8817X based USB 2.0 Ethernet Devices */ #define AX_CMD_SET_SW_MII 0x06 @@ -46,23 +50,25 @@ #define AX_CMD_WRITE_EEPROM 0x0c #define AX_CMD_WRITE_ENABLE 0x0d #define AX_CMD_WRITE_DISABLE 0x0e +#define AX_CMD_READ_RX_CTL 0x0f #define AX_CMD_WRITE_RX_CTL 0x10 #define AX_CMD_READ_IPG012 0x11 #define AX_CMD_WRITE_IPG0 0x12 #define AX_CMD_WRITE_IPG1 0x13 +#define AX_CMD_READ_NODE_ID 0x13 #define AX_CMD_WRITE_IPG2 0x14 #define AX_CMD_WRITE_MULTI_FILTER 0x16 -#define AX_CMD_READ_NODE_ID 0x17 +#define AX88172_CMD_READ_NODE_ID 0x17 #define AX_CMD_READ_PHY_ID 0x19 #define AX_CMD_READ_MEDIUM_STATUS 0x1a #define AX_CMD_WRITE_MEDIUM_MODE 0x1b #define AX_CMD_READ_MONITOR_MODE 0x1c #define AX_CMD_WRITE_MONITOR_MODE 0x1d +#define AX_CMD_READ_GPIOS 0x1e #define AX_CMD_WRITE_GPIOS 0x1f #define AX_CMD_SW_RESET 0x20 #define AX_CMD_SW_PHY_STATUS 0x21 #define AX_CMD_SW_PHY_SELECT 0x22 -#define AX88772_CMD_READ_NODE_ID 0x13 #define AX_MONITOR_MODE 0x01 #define AX_MONITOR_LINK 0x02 @@ -70,15 +76,15 @@ #define AX_MONITOR_HSFS 0x10 /* AX88172 Medium Status Register values */ -#define AX_MEDIUM_FULL_DUPLEX 0x02 -#define AX_MEDIUM_TX_ABORT_ALLOW 0x04 -#define AX_MEDIUM_FLOW_CONTROL_EN 0x10 +#define AX88172_MEDIUM_FD 0x02 +#define AX88172_MEDIUM_TX 0x04 +#define AX88172_MEDIUM_FC 0x10 +#define AX88172_MEDIUM_DEFAULT \ + ( AX88172_MEDIUM_FD | AX88172_MEDIUM_TX | AX88172_MEDIUM_FC ) #define AX_MCAST_FILTER_SIZE 8 #define AX_MAX_MCAST 64 -#define AX_EEPROM_LEN 0x40 - #define AX_SWRESET_CLEAR 0x00 #define AX_SWRESET_RR 0x01 #define AX_SWRESET_RT 0x02 @@ -92,23 +98,78 @@ #define AX88772_IPG1_DEFAULT 0x0c #define AX88772_IPG2_DEFAULT 0x12 -#define AX88772_MEDIUM_FULL_DUPLEX 0x0002 -#define AX88772_MEDIUM_RESERVED 0x0004 -#define AX88772_MEDIUM_RX_FC_ENABLE 0x0010 -#define AX88772_MEDIUM_TX_FC_ENABLE 0x0020 -#define AX88772_MEDIUM_PAUSE_FORMAT 0x0080 -#define AX88772_MEDIUM_RX_ENABLE 0x0100 -#define AX88772_MEDIUM_100MB 0x0200 -#define AX88772_MEDIUM_DEFAULT \ - (AX88772_MEDIUM_FULL_DUPLEX | AX88772_MEDIUM_RX_FC_ENABLE | \ - AX88772_MEDIUM_TX_FC_ENABLE | AX88772_MEDIUM_100MB | \ - AX88772_MEDIUM_RESERVED | AX88772_MEDIUM_RX_ENABLE ) +/* AX88772 & AX88178 Medium Mode Register */ +#define AX_MEDIUM_PF 0x0080 +#define AX_MEDIUM_JFE 0x0040 +#define AX_MEDIUM_TFC 0x0020 +#define AX_MEDIUM_RFC 0x0010 +#define AX_MEDIUM_ENCK 0x0008 +#define AX_MEDIUM_AC 0x0004 +#define AX_MEDIUM_FD 0x0002 +#define AX_MEDIUM_GM 0x0001 +#define AX_MEDIUM_SM 0x1000 +#define AX_MEDIUM_SBP 0x0800 +#define AX_MEDIUM_PS 0x0200 +#define AX_MEDIUM_RE 0x0100 -#define AX_EEPROM_MAGIC 0xdeadbeef +#define AX88178_MEDIUM_DEFAULT \ + (AX_MEDIUM_PS | AX_MEDIUM_FD | AX_MEDIUM_AC | \ + AX_MEDIUM_RFC | AX_MEDIUM_TFC | AX_MEDIUM_JFE | \ + AX_MEDIUM_RE ) + +#define AX88772_MEDIUM_DEFAULT \ + (AX_MEDIUM_FD | AX_MEDIUM_RFC | \ + AX_MEDIUM_TFC | AX_MEDIUM_PS | \ + AX_MEDIUM_AC | AX_MEDIUM_RE ) + +/* AX88772 & AX88178 RX_CTL values */ +#define AX_RX_CTL_SO 0x0080 +#define AX_RX_CTL_AP 0x0020 +#define AX_RX_CTL_AM 0x0010 +#define AX_RX_CTL_AB 0x0008 +#define AX_RX_CTL_SEP 0x0004 +#define AX_RX_CTL_AMALL 0x0002 +#define AX_RX_CTL_PRO 0x0001 +#define AX_RX_CTL_MFB_2048 0x0000 +#define AX_RX_CTL_MFB_4096 0x0100 +#define AX_RX_CTL_MFB_8192 0x0200 +#define AX_RX_CTL_MFB_16384 0x0300 + +#define AX_DEFAULT_RX_CTL \ + (AX_RX_CTL_SO | AX_RX_CTL_AB ) + +/* GPIO 0 .. 2 toggles */ +#define AX_GPIO_GPO0EN 0x01 /* GPIO0 Output enable */ +#define AX_GPIO_GPO_0 0x02 /* GPIO0 Output value */ +#define AX_GPIO_GPO1EN 0x04 /* GPIO1 Output enable */ +#define AX_GPIO_GPO_1 0x08 /* GPIO1 Output value */ +#define AX_GPIO_GPO2EN 0x10 /* GPIO2 Output enable */ +#define AX_GPIO_GPO_2 0x20 /* GPIO2 Output value */ +#define AX_GPIO_RESERVED 0x40 /* Reserved */ +#define AX_GPIO_RSE 0x80 /* Reload serial EEPROM */ + +#define AX_EEPROM_MAGIC 0xdeadbeef +#define AX88172_EEPROM_LEN 0x40 +#define AX88772_EEPROM_LEN 0xff + +#define PHY_MODE_MARVELL 0x0000 +#define MII_MARVELL_LED_CTRL 0x0018 +#define MII_MARVELL_STATUS 0x001b +#define MII_MARVELL_CTRL 0x0014 + +#define MARVELL_LED_MANUAL 0x0019 + +#define MARVELL_STATUS_HWCFG 0x0004 + +#define MARVELL_CTRL_TXDELAY 0x0002 +#define MARVELL_CTRL_RXDELAY 0x0080 /* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */ struct asix_data { u8 multi_filter[AX_MCAST_FILTER_SIZE]; + u8 phymode; + u8 ledmode; + u8 eeprom_len; }; struct ax88172_int_data { @@ -122,6 +183,8 @@ static int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data) { + devdbg(dev,"asix_read_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d", + cmd, value, index, size); return usb_control_msg( dev->udev, usb_rcvctrlpipe(dev->udev, 0), @@ -137,6 +200,8 @@ static int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data) { + devdbg(dev,"asix_write_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d", + cmd, value, index, size); return usb_control_msg( dev->udev, usb_sndctrlpipe(dev->udev, 0), @@ -161,65 +226,139 @@ usb_free_urb(urb); } -static inline int asix_set_sw_mii(struct usbnet *dev) +static void +asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, + u16 size, void *data) { - int ret; - ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL); - if (ret < 0) - devdbg(dev, "Failed to enable software MII access"); - return ret; -} + struct usb_ctrlrequest *req; + int status; + struct urb *urb; -static inline int asix_set_hw_mii(struct usbnet *dev) -{ - int ret; - ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL); - if (ret < 0) - devdbg(dev, "Failed to enable hardware MII access"); - return ret; -} - -static inline int asix_get_phyid(struct usbnet *dev) -{ - int ret = 0; - void *buf; - - buf = kmalloc(2, GFP_KERNEL); - if (!buf) - goto out1; - - if ((ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, - 0, 0, 2, buf)) < 2) { - devdbg(dev, "Error reading PHYID register: %02x", ret); - goto out2; + devdbg(dev,"asix_write_cmd_async() cmd=0x%02x value=0x%04x index=0x%04x size=%d", + cmd, value, index, size); + if ((urb = usb_alloc_urb(0, GFP_ATOMIC)) == NULL) { + deverr(dev, "Error allocating URB in write_cmd_async!"); + return; } - ret = *((u8 *)buf + 1); -out2: - kfree(buf); -out1: - return ret; + + if ((req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC)) == NULL) { + deverr(dev, "Failed to allocate memory for control request"); + usb_free_urb(urb); + return; + } + + req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE; + req->bRequest = cmd; + req->wValue = value; + req->wIndex = index; + req->wLength = size; + + usb_fill_control_urb(urb, dev->udev, + usb_sndctrlpipe(dev->udev, 0), + (void *)req, data, size, + asix_async_cmd_callback, req); + + if((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { + deverr(dev, "Error submitting the control message: status=%d", + status); + kfree(req); + usb_free_urb(urb); + } } -static int asix_sw_reset(struct usbnet *dev, u8 flags) +static int asix_rx_fixup(struct usbnet *dev, struct sk_buff *skb) { - int ret; + u8 *head; + u32 header; + char *packet; + struct sk_buff *ax_skb; + u16 size; - ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL); - if (ret < 0) - devdbg(dev,"Failed to send software reset: %02x", ret); + head = (u8 *) skb->data; + memcpy(&header, head, sizeof(header)); + le32_to_cpus(&header); + packet = head + sizeof(header); - return ret; + skb_pull(skb, 4); + + while (skb->len > 0) { + if ((short)(header & 0x0000ffff) != + ~((short)((header & 0xffff0000) >> 16))) { + deverr(dev,"asix_rx_fixup() Bad Header Length"); + } + /* get the packet length */ + size = (u16) (header & 0x0000ffff); + + if ((skb->len) - ((size + 1) & 0xfffe) == 0) + return 2; + if (size > ETH_FRAME_LEN) { + deverr(dev,"asix_rx_fixup() Bad RX Length %d", size); + return 0; + } + ax_skb = skb_clone(skb, GFP_ATOMIC); + if (ax_skb) { + ax_skb->len = size; + ax_skb->data = packet; + ax_skb->tail = packet + size; + usbnet_skb_return(dev, ax_skb); + } else { + return 0; + } + + skb_pull(skb, (size + 1) & 0xfffe); + + if (skb->len == 0) + break; + + head = (u8 *) skb->data; + memcpy(&header, head, sizeof(header)); + le32_to_cpus(&header); + packet = head + sizeof(header); + skb_pull(skb, 4); + } + + if (skb->len < 0) { + deverr(dev,"asix_rx_fixup() Bad SKB Length %d", skb->len); + return 0; + } + return 1; } -static int asix_write_rx_ctl(struct usbnet *dev, u16 mode) +static struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb, + gfp_t flags) { - int ret; + int padlen; + int headroom = skb_headroom(skb); + int tailroom = skb_tailroom(skb); + u32 packet_len; + u32 padbytes = 0xffff0000; - ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL); - if (ret < 0) - devdbg(dev, "Failed to write RX_CTL mode: %02x", ret); + padlen = ((skb->len + 4) % 512) ? 0 : 4; - return ret; + if ((!skb_cloned(skb)) + && ((headroom + tailroom) >= (4 + padlen))) { + if ((headroom < 4) || (tailroom < padlen)) { + skb->data = memmove(skb->head + 4, skb->data, skb->len); + skb->tail = skb->data + skb->len; + } + } else { + struct sk_buff *skb2; + skb2 = skb_copy_expand(skb, 4, padlen, flags); + dev_kfree_skb_any(skb); + skb = skb2; + if (!skb) + return NULL; + } + + skb_push(skb, 4); + packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4); + memcpy(skb->data, &packet_len, sizeof(packet_len)); + + if ((skb->len % 512) == 0) { + memcpy( skb->tail, &padbytes, sizeof(padbytes)); + skb_put(skb, sizeof(padbytes)); + } + return skb; } static void asix_status(struct usbnet *dev, struct urb *urb) @@ -242,55 +381,157 @@ } } -static void -asix_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index, - u16 size, void *data) +static inline int asix_set_sw_mii(struct usbnet *dev) { - struct usb_ctrlrequest *req; - int status; - struct urb *urb; - - if ((urb = usb_alloc_urb(0, GFP_ATOMIC)) == NULL) { - devdbg(dev, "Error allocating URB in write_cmd_async!"); - return; - } - - if ((req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC)) == NULL) { - deverr(dev, "Failed to allocate memory for control request"); - usb_free_urb(urb); - return; - } - - req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE; - req->bRequest = cmd; - req->wValue = cpu_to_le16(value); - req->wIndex = cpu_to_le16(index); - req->wLength = cpu_to_le16(size); - - usb_fill_control_urb(urb, dev->udev, - usb_sndctrlpipe(dev->udev, 0), - (void *)req, data, size, - asix_async_cmd_callback, req); - - if((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { - deverr(dev, "Error submitting the control message: status=%d", - status); - kfree(req); - usb_free_urb(urb); - } + int ret; + ret = asix_write_cmd(dev, AX_CMD_SET_SW_MII, 0x0000, 0, 0, NULL); + if (ret < 0) + deverr(dev, "Failed to enable software MII access"); + return ret; } +static inline int asix_set_hw_mii(struct usbnet *dev) +{ + int ret; + ret = asix_write_cmd(dev, AX_CMD_SET_HW_MII, 0x0000, 0, 0, NULL); + if (ret < 0) + deverr(dev, "Failed to enable hardware MII access"); + return ret; +} + +static inline int asix_get_phy_addr(struct usbnet *dev) +{ + int ret = 0; + void *buf; + + devdbg(dev, "asix_get_phy_addr()"); + + buf = kmalloc(2, GFP_KERNEL); + if (!buf) + goto out1; + + if ((ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, + 0, 0, 2, buf)) < 2) { + deverr(dev, "Error reading PHYID register: %02x", ret); + goto out2; + } + devdbg(dev, "asix_get_phy_addr() returning 0x%04x", *((u16 *)buf)); + ret = *((u8 *)buf + 1); +out2: + kfree(buf); +out1: + return ret; +} + +static int asix_sw_reset(struct usbnet *dev, u8 flags) +{ + int ret; + + ret = asix_write_cmd(dev, AX_CMD_SW_RESET, flags, 0, 0, NULL); + if (ret < 0) + deverr(dev,"Failed to send software reset: %02x", ret); + + return ret; +} + +static u16 asix_read_rx_ctl(struct usbnet *dev) +{ + u16 ret = 0; + void *buf; + + buf = kmalloc(2, GFP_KERNEL); + if (!buf) + goto out1; + + if ((ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, + 0, 0, 2, buf)) < 2) { + deverr(dev, "Error reading RX_CTL register: %02x", ret); + goto out2; + } + ret = le16_to_cpu(*((u16 *)buf)); +out2: + kfree(buf); +out1: + return ret; +} + +static int asix_write_rx_ctl(struct usbnet *dev, u16 mode) +{ + int ret; + + devdbg(dev,"asix_write_rx_ctl() - mode = 0x%04x", mode); + ret = asix_write_cmd(dev, AX_CMD_WRITE_RX_CTL, mode, 0, 0, NULL); + if (ret < 0) + deverr(dev, "Failed to write RX_CTL mode to 0x%04x: %02x", + mode, ret); + + return ret; +} + +static u16 asix_read_medium_status(struct usbnet *dev) +{ + u16 ret = 0; + void *buf; + + buf = kmalloc(2, GFP_KERNEL); + if (!buf) + goto out1; + + if ((ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS, + 0, 0, 2, buf)) < 2) { + deverr(dev, "Error reading Medium Status register: %02x", ret); + goto out2; + } + ret = le16_to_cpu(*((u16 *)buf)); +out2: + kfree(buf); +out1: + return ret; +} + +static int asix_write_medium_mode(struct usbnet *dev, u16 mode) +{ + int ret; + + devdbg(dev,"asix_write_medium_mode() - mode = 0x%04x", mode); + ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); + if (ret < 0) + deverr(dev, "Failed to write Medium Mode mode to 0x%04x: %02x", + mode, ret); + + return ret; +} + +static int asix_write_gpio(struct usbnet *dev, u16 value, int sleep) +{ + int ret; + + devdbg(dev,"asix_write_gpio() - value = 0x%04x", value); + ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, value, 0, 0, NULL); + if (ret < 0) + deverr(dev, "Failed to write GPIO value 0x%04x: %02x", + value, ret); + + if (sleep) + msleep(sleep); + + return ret; +} + +/* + * AX88772 & AX88178 have a 16-bit RX_CTL value + */ static void asix_set_multicast(struct net_device *net) { struct usbnet *dev = netdev_priv(net); struct asix_data *data = (struct asix_data *)&dev->data; - u8 rx_ctl = 0x8c; + u16 rx_ctl = AX_DEFAULT_RX_CTL; if (net->flags & IFF_PROMISC) { - rx_ctl |= 0x01; + rx_ctl |= AX_RX_CTL_PRO; } else if (net->flags & IFF_ALLMULTI || net->mc_count > AX_MAX_MCAST) { - rx_ctl |= 0x02; + rx_ctl |= AX_RX_CTL_AMALL; } else if (net->mc_count == 0) { /* just broadcast and directed */ } else { @@ -317,7 +558,7 @@ asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0, AX_MCAST_FILTER_SIZE, data->multi_filter); - rx_ctl |= 0x10; + rx_ctl |= AX_RX_CTL_AM; } asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); @@ -333,50 +574,43 @@ (__u16)loc, 2, (u16 *)&res); asix_set_hw_mii(dev); - return res & 0xffff; -} + devdbg(dev, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x", phy_id, loc, le16_to_cpu(res & 0xffff)); -/* same as above, but converts resulting value to cpu byte order */ -static int asix_mdio_read_le(struct net_device *netdev, int phy_id, int loc) -{ - return le16_to_cpu(asix_mdio_read(netdev,phy_id, loc)); + return le16_to_cpu(res & 0xffff); } static void asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val) { struct usbnet *dev = netdev_priv(netdev); - u16 res = val; + u16 res = cpu_to_le16(val); + devdbg(dev, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x", phy_id, loc, val); asix_set_sw_mii(dev); asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res); asix_set_hw_mii(dev); } -/* same as above, but converts new value to le16 byte order before writing */ -static void -asix_mdio_write_le(struct net_device *netdev, int phy_id, int loc, int val) +/* Get the PHY Identifier from the PHYSID1 & PHYSID2 MII registers */ +static u32 asix_get_phyid(struct usbnet *dev) { - asix_mdio_write( netdev, phy_id, loc, cpu_to_le16(val) ); -} + int phy_reg; + u32 phy_id; -static int ax88172_link_reset(struct usbnet *dev) -{ - u16 lpa; - u16 adv; - u16 res; - u8 mode; + phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID1); + if (phy_reg < 0) + return 0; - mode = AX_MEDIUM_TX_ABORT_ALLOW | AX_MEDIUM_FLOW_CONTROL_EN; - lpa = asix_mdio_read_le(dev->net, dev->mii.phy_id, MII_LPA); - adv = asix_mdio_read_le(dev->net, dev->mii.phy_id, MII_ADVERTISE); - res = mii_nway_result(lpa|adv); - if (res & LPA_DUPLEX) - mode |= AX_MEDIUM_FULL_DUPLEX; - asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); + phy_id = (phy_reg & 0xffff) << 16; - return 0; + phy_reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_PHYSID2); + if (phy_reg < 0) + return 0; + + phy_id |= (phy_reg & 0xffff); + + return phy_id; } static void @@ -423,7 +657,10 @@ static int asix_get_eeprom_len(struct net_device *net) { - return AX_EEPROM_LEN; + struct usbnet *dev = netdev_priv(net); + struct asix_data *data = (struct asix_data *)&dev->data; + + return data->eeprom_len; } static int asix_get_eeprom(struct net_device *net, @@ -453,9 +690,14 @@ static void asix_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info) { + struct usbnet *dev = netdev_priv(net); + struct asix_data *data = (struct asix_data *)&dev->data; + /* Inherit standard device info */ usbnet_get_drvinfo(net, info); - info->eedump_len = 0x3e; + strncpy (info->driver, driver_name, sizeof info->driver); + strncpy (info->version, DRIVER_VERSION, sizeof info->version); + info->eedump_len = data->eeprom_len; } static int asix_get_settings(struct net_device *net, struct ethtool_cmd *cmd) @@ -468,8 +710,34 @@ static int asix_set_settings(struct net_device *net, struct ethtool_cmd *cmd) { struct usbnet *dev = netdev_priv(net); + int res = mii_ethtool_sset(&dev->mii,cmd); - return mii_ethtool_sset(&dev->mii,cmd); + /* link speed/duplex might have changed */ + if (dev->driver_info->link_reset) + dev->driver_info->link_reset(dev); + + return res; +} + +static int asix_nway_reset(struct net_device *net) +{ + struct usbnet *dev = netdev_priv(net); + + return mii_nway_restart(&dev->mii); +} + +static u32 asix_get_link(struct net_device *net) +{ + struct usbnet *dev = netdev_priv(net); + + return mii_link_ok(&dev->mii); +} + +static int asix_ioctl (struct net_device *net, struct ifreq *rq, int cmd) +{ + struct usbnet *dev = netdev_priv(net); + + return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); } /* We need to override some ethtool_ops so we require our @@ -477,7 +745,8 @@ devices that may be connected at the same time. */ static struct ethtool_ops ax88172_ethtool_ops = { .get_drvinfo = asix_get_drvinfo, - .get_link = ethtool_op_get_link, + .get_link = asix_get_link, + .nway_reset = asix_nway_reset, .get_msglevel = usbnet_get_msglevel, .set_msglevel = usbnet_set_msglevel, .get_wol = asix_get_wol, @@ -488,11 +757,66 @@ .set_settings = asix_set_settings, }; -static int asix_ioctl (struct net_device *net, struct ifreq *rq, int cmd) +static void ax88172_set_multicast(struct net_device *net) { struct usbnet *dev = netdev_priv(net); + struct asix_data *data = (struct asix_data *)&dev->data; + u8 rx_ctl = 0x8c; - return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL); + if (net->flags & IFF_PROMISC) { + rx_ctl |= 0x01; + } else if (net->flags & IFF_ALLMULTI + || net->mc_count > AX_MAX_MCAST) { + rx_ctl |= 0x02; + } else if (net->mc_count == 0) { + /* just broadcast and directed */ + } else { + /* We use the 20 byte dev->data + * for our 8 byte filter buffer + * to avoid allocating memory that + * is tricky to free later */ + struct dev_mc_list *mc_list = net->mc_list; + u32 crc_bits; + int i; + + memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE); + + /* Build the multicast hash filter. */ + for (i = 0; i < net->mc_count; i++) { + crc_bits = + ether_crc(ETH_ALEN, + mc_list->dmi_addr) >> 26; + data->multi_filter[crc_bits >> 3] |= + 1 << (crc_bits & 7); + mc_list = mc_list->next; + } + + asix_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0, + AX_MCAST_FILTER_SIZE, data->multi_filter); + + rx_ctl |= 0x10; + } + + asix_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL); +} + +static int ax88172_link_reset(struct usbnet *dev) +{ + u8 mode; + struct ethtool_cmd ecmd; + + mii_check_media(&dev->mii, 1, 1); + mii_ethtool_gset(&dev->mii, &ecmd); + mode = AX88172_MEDIUM_DEFAULT; + + if (ecmd.duplex != DUPLEX_FULL) + mode |= ~AX88172_MEDIUM_FD; + + devdbg(dev, "ax88172_link_reset() speed: %d duplex: %d setting mode to 0x%04x", ecmd.speed, ecmd.duplex, mode); + + asix_write_medium_mode(dev, mode); + + return 0; } static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf) @@ -501,6 +825,9 @@ void *buf; int i; unsigned long gpio_bits = dev->driver_info->data; + struct asix_data *data = (struct asix_data *)&dev->data; + + data->eeprom_len = AX88172_EEPROM_LEN; usbnet_get_endpoints(dev,intf); @@ -519,12 +846,12 @@ msleep(5); } - if ((ret = asix_write_rx_ctl(dev,0x80)) < 0) + if ((ret = asix_write_rx_ctl(dev, 0x80)) < 0) goto out2; /* Get the MAC address */ memset(buf, 0, ETH_ALEN); - if ((ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, + if ((ret = asix_read_cmd(dev, AX88172_CMD_READ_NODE_ID, 0, 0, 6, buf)) < 0) { dbg("read AX_CMD_READ_NODE_ID failed: %d", ret); goto out2; @@ -537,14 +864,14 @@ dev->mii.mdio_write = asix_mdio_write; dev->mii.phy_id_mask = 0x3f; dev->mii.reg_num_mask = 0x1f; - dev->mii.phy_id = asix_get_phyid(dev); + dev->mii.phy_id = asix_get_phy_addr(dev); dev->net->do_ioctl = asix_ioctl; - dev->net->set_multicast_list = asix_set_multicast; + dev->net->set_multicast_list = ax88172_set_multicast; dev->net->ethtool_ops = &ax88172_ethtool_ops; - asix_mdio_write_le(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); - asix_mdio_write_le(dev->net, dev->mii.phy_id, MII_ADVERTISE, + asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); + asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP); mii_nway_restart(&dev->mii); @@ -557,7 +884,8 @@ static struct ethtool_ops ax88772_ethtool_ops = { .get_drvinfo = asix_get_drvinfo, - .get_link = ethtool_op_get_link, + .get_link = asix_get_link, + .nway_reset = asix_nway_reset, .get_msglevel = usbnet_get_msglevel, .set_msglevel = usbnet_set_msglevel, .get_wol = asix_get_wol, @@ -568,10 +896,37 @@ .set_settings = asix_set_settings, }; +static int ax88772_link_reset(struct usbnet *dev) +{ + u16 mode; + struct ethtool_cmd ecmd; + + mii_check_media(&dev->mii, 1, 1); + mii_ethtool_gset(&dev->mii, &ecmd); + mode = AX88772_MEDIUM_DEFAULT; + + if (ecmd.speed != SPEED_100) + mode &= ~AX_MEDIUM_PS; + + if (ecmd.duplex != DUPLEX_FULL) + mode &= ~AX_MEDIUM_FD; + + devdbg(dev, "ax88772_link_reset() speed: %d duplex: %d setting mode to 0x%04x", ecmd.speed, ecmd.duplex, mode); + + asix_write_medium_mode(dev, mode); + + return 0; +} + static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf) { int ret; void *buf; + u16 rx_ctl; + struct asix_data *data = (struct asix_data *)&dev->data; + u32 phyid; + + data->eeprom_len = AX88772_EEPROM_LEN; usbnet_get_endpoints(dev,intf); @@ -582,13 +937,12 @@ goto out1; } - if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS, - 0x00B0, 0, 0, buf)) < 0) + if ((ret = asix_write_gpio(dev, + AX_GPIO_RSE | AX_GPIO_GPO_2 | AX_GPIO_GPO2EN, 5)) < 0) goto out2; - msleep(5); if ((ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT, - 0x0001, 0, 0, buf)) < 0) { + 0x0000, 0, 0, buf)) < 0) { dbg("Select PHY #1 failed: %d", ret); goto out2; } @@ -605,36 +959,34 @@ goto out2; msleep(150); - if ((ret = asix_write_rx_ctl(dev, 0x00)) < 0) + rx_ctl = asix_read_rx_ctl(dev); + dbg("RX_CTL is 0x%04x after software reset", rx_ctl); + if ((ret = asix_write_rx_ctl(dev, 0x0000)) < 0) goto out2; + rx_ctl = asix_read_rx_ctl(dev); + dbg("RX_CTL is 0x%04x setting to 0x0000", rx_ctl); + /* Get the MAC address */ memset(buf, 0, ETH_ALEN); - if ((ret = asix_read_cmd(dev, AX88772_CMD_READ_NODE_ID, + if ((ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf)) < 0) { dbg("Failed to read MAC address: %d", ret); goto out2; } memcpy(dev->net->dev_addr, buf, ETH_ALEN); - if ((ret = asix_set_sw_mii(dev)) < 0) - goto out2; - - if (((ret = asix_read_cmd(dev, AX_CMD_READ_MII_REG, - 0x0010, 2, 2, buf)) < 0) - || (*((u16 *)buf) != 0x003b)) { - dbg("Read PHY register 2 must be 0x3b00: %d", ret); - goto out2; - } - /* Initialize MII structure */ dev->mii.dev = dev->net; dev->mii.mdio_read = asix_mdio_read; dev->mii.mdio_write = asix_mdio_write; - dev->mii.phy_id_mask = 0xff; - dev->mii.reg_num_mask = 0xff; + dev->mii.phy_id_mask = 0x1f; + dev->mii.reg_num_mask = 0x1f; dev->net->do_ioctl = asix_ioctl; - dev->mii.phy_id = asix_get_phyid(dev); + dev->mii.phy_id = asix_get_phy_addr(dev); + + phyid = asix_get_phyid(dev); + dbg("PHYID=0x%08x", phyid); if ((ret = asix_sw_reset(dev, AX_SWRESET_PRL)) < 0) goto out2; @@ -649,16 +1001,13 @@ dev->net->set_multicast_list = asix_set_multicast; dev->net->ethtool_ops = &ax88772_ethtool_ops; - asix_mdio_write_le(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); - asix_mdio_write_le(dev->net, dev->mii.phy_id, MII_ADVERTISE, + asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET); + asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, ADVERTISE_ALL | ADVERTISE_CSMA); mii_nway_restart(&dev->mii); - if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, - AX88772_MEDIUM_DEFAULT, 0, 0, buf)) < 0) { - dbg("Write medium mode register: %d", ret); + if ((ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT)) < 0) goto out2; - } if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0, AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT, @@ -666,13 +1015,17 @@ dbg("Write IPG,IPG1,IPG2 failed: %d", ret); goto out2; } - if ((ret = asix_set_hw_mii(dev)) < 0) - goto out2; /* Set RX_CTL to default values with 2k buffer, and enable cactus */ - if ((ret = asix_write_rx_ctl(dev, 0x0088)) < 0) + if ((ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL)) < 0) goto out2; + rx_ctl = asix_read_rx_ctl(dev); + dbg("RX_CTL is 0x%04x after all initializations", rx_ctl); + + rx_ctl = asix_read_medium_status(dev); + dbg("Medium Status is 0x%04x after all initializations", rx_ctl); + kfree(buf); /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */ @@ -690,122 +1043,287 @@ return ret; } -static int ax88772_rx_fixup(struct usbnet *dev, struct sk_buff *skb) +static struct ethtool_ops ax88178_ethtool_ops = { + .get_drvinfo = asix_get_drvinfo, + .get_link = asix_get_link, + .nway_reset = asix_nway_reset, + .get_msglevel = usbnet_get_msglevel, + .set_msglevel = usbnet_set_msglevel, + .get_wol = asix_get_wol, + .set_wol = asix_set_wol, + .get_eeprom_len = asix_get_eeprom_len, + .get_eeprom = asix_get_eeprom, + .get_settings = asix_get_settings, + .set_settings = asix_set_settings, +}; + +static int marvell_phy_init(struct usbnet *dev) { - u8 *head; - u32 header; - char *packet; - struct sk_buff *ax_skb; - u16 size; + struct asix_data *data = (struct asix_data *)&dev->data; + u16 reg; - head = (u8 *) skb->data; - memcpy(&header, head, sizeof(header)); - le32_to_cpus(&header); - packet = head + sizeof(header); + devdbg(dev,"marvell_phy_init()"); - skb_pull(skb, 4); + reg = asix_mdio_read(dev->net, dev->mii.phy_id, MII_MARVELL_STATUS); + devdbg(dev,"MII_MARVELL_STATUS = 0x%04x", reg); - while (skb->len > 0) { - if ((short)(header & 0x0000ffff) != - ~((short)((header & 0xffff0000) >> 16))) { - devdbg(dev,"header length data is error"); - } - /* get the packet length */ - size = (u16) (header & 0x0000ffff); + asix_mdio_write(dev->net, dev->mii.phy_id, MII_MARVELL_CTRL, + MARVELL_CTRL_RXDELAY | MARVELL_CTRL_TXDELAY); - if ((skb->len) - ((size + 1) & 0xfffe) == 0) - return 2; - if (size > ETH_FRAME_LEN) { - devdbg(dev,"invalid rx length %d", size); - return 0; - } - ax_skb = skb_clone(skb, GFP_ATOMIC); - if (ax_skb) { - ax_skb->len = size; - ax_skb->data = packet; - ax_skb->tail = packet + size; - usbnet_skb_return(dev, ax_skb); - } else { - return 0; - } + if (data->ledmode) { + reg = asix_mdio_read(dev->net, dev->mii.phy_id, + MII_MARVELL_LED_CTRL); + devdbg(dev,"MII_MARVELL_LED_CTRL (1) = 0x%04x", reg); - skb_pull(skb, (size + 1) & 0xfffe); + reg &= 0xf8ff; + reg |= (1 + 0x0100); + asix_mdio_write(dev->net, dev->mii.phy_id, + MII_MARVELL_LED_CTRL, reg); - if (skb->len == 0) - break; - - head = (u8 *) skb->data; - memcpy(&header, head, sizeof(header)); - le32_to_cpus(&header); - packet = head + sizeof(header); - skb_pull(skb, 4); + reg = asix_mdio_read(dev->net, dev->mii.phy_id, + MII_MARVELL_LED_CTRL); + devdbg(dev,"MII_MARVELL_LED_CTRL (2) = 0x%04x", reg); + reg &= 0xfc0f; } - if (skb->len < 0) { - devdbg(dev,"invalid rx length %d", skb->len); - return 0; - } - return 1; -} - -static struct sk_buff *ax88772_tx_fixup(struct usbnet *dev, struct sk_buff *skb, - gfp_t flags) -{ - int padlen; - int headroom = skb_headroom(skb); - int tailroom = skb_tailroom(skb); - u32 packet_len; - u32 padbytes = 0xffff0000; - - padlen = ((skb->len + 4) % 512) ? 0 : 4; - - if ((!skb_cloned(skb)) - && ((headroom + tailroom) >= (4 + padlen))) { - if ((headroom < 4) || (tailroom < padlen)) { - skb->data = memmove(skb->head + 4, skb->data, skb->len); - skb->tail = skb->data + skb->len; - } - } else { - struct sk_buff *skb2; - skb2 = skb_copy_expand(skb, 4, padlen, flags); - dev_kfree_skb_any(skb); - skb = skb2; - if (!skb) - return NULL; - } - - skb_push(skb, 4); - packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4); - memcpy(skb->data, &packet_len, sizeof(packet_len)); - - if ((skb->len % 512) == 0) { - memcpy( skb->tail, &padbytes, sizeof(padbytes)); - skb_put(skb, sizeof(padbytes)); - } - return skb; -} - -static int ax88772_link_reset(struct usbnet *dev) -{ - u16 lpa; - u16 adv; - u16 res; - u16 mode; - - mode = AX88772_MEDIUM_DEFAULT; - lpa = asix_mdio_read_le(dev->net, dev->mii.phy_id, MII_LPA); - adv = asix_mdio_read_le(dev->net, dev->mii.phy_id, MII_ADVERTISE); - res = mii_nway_result(lpa|adv); - - if ((res & LPA_DUPLEX) == 0) - mode &= ~AX88772_MEDIUM_FULL_DUPLEX; - if ((res & LPA_100) == 0) - mode &= ~AX88772_MEDIUM_100MB; - asix_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL); - return 0; } +static int marvell_led_status(struct usbnet *dev, u16 speed) +{ + u16 reg = asix_mdio_read(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL); + + devdbg(dev, "marvell_led_status() read 0x%04x", reg); + + /* Clear out the center LED bits - 0x03F0 */ + reg &= 0xfc0f; + + switch (speed) { + case SPEED_1000: + reg |= 0x03e0; + break; + case SPEED_100: + reg |= 0x03b0; + break; + default: + reg |= 0x02f0; + } + + devdbg(dev, "marvell_led_status() writing 0x%04x", reg); + asix_mdio_write(dev->net, dev->mii.phy_id, MARVELL_LED_MANUAL, reg); + + return 0; +} + +static int ax88178_link_reset(struct usbnet *dev) +{ + u16 mode; + struct ethtool_cmd ecmd; + struct asix_data *data = (struct asix_data *)&dev->data; + + devdbg(dev,"ax88178_link_reset()"); + + mii_check_media(&dev->mii, 1, 1); + mii_ethtool_gset(&dev->mii, &ecmd); + mode = AX88178_MEDIUM_DEFAULT; + + if (ecmd.speed == SPEED_1000) + mode |= AX_MEDIUM_GM | AX_MEDIUM_ENCK; + else if (ecmd.speed == SPEED_100) + mode |= AX_MEDIUM_PS; + else + mode &= ~(AX_MEDIUM_PS | AX_MEDIUM_GM); + + if (ecmd.duplex == DUPLEX_FULL) + mode |= AX_MEDIUM_FD; + else + mode &= ~AX_MEDIUM_FD; + + devdbg(dev, "ax88178_link_reset() speed: %d duplex: %d setting mode to 0x%04x", ecmd.speed, ecmd.duplex, mode); + + asix_write_medium_mode(dev, mode); + + if (data->phymode == PHY_MODE_MARVELL && data->ledmode) + marvell_led_status(dev, ecmd.speed); + + return 0; +} + +static void ax88178_set_mfb(struct usbnet *dev) +{ + u16 mfb = AX_RX_CTL_MFB_16384; + u16 rxctl; + u16 medium; + int old_rx_urb_size = dev->rx_urb_size; + + if (dev->hard_mtu < 2048) { + dev->rx_urb_size = 2048; + mfb = AX_RX_CTL_MFB_2048; + } else if (dev->hard_mtu < 4096) { + dev->rx_urb_size = 4096; + mfb = AX_RX_CTL_MFB_4096; + } else if (dev->hard_mtu < 8192) { + dev->rx_urb_size = 8192; + mfb = AX_RX_CTL_MFB_8192; + } else if (dev->hard_mtu < 16384) { + dev->rx_urb_size = 16384; + mfb = AX_RX_CTL_MFB_16384; + } + + rxctl = asix_read_rx_ctl(dev); + asix_write_rx_ctl(dev, (rxctl & ~AX_RX_CTL_MFB_16384) | mfb); + + medium = asix_read_medium_status(dev); + if (dev->net->mtu > 1500) + medium |= AX_MEDIUM_JFE; + else + medium &= ~AX_MEDIUM_JFE; + asix_write_medium_mode(dev, medium); + + if (dev->rx_urb_size > old_rx_urb_size) + usbnet_unlink_rx_urbs(dev); +} + +static int ax88178_change_mtu(struct net_device *net, int new_mtu) +{ + struct usbnet *dev = netdev_priv(net); + int ll_mtu = new_mtu + net->hard_header_len + 4; + + devdbg(dev, "ax88178_change_mtu() new_mtu=%d", new_mtu); + + if (new_mtu <= 0 || ll_mtu > 16384) + return -EINVAL; + + if ((ll_mtu % dev->maxpacket) == 0) + return -EDOM; + + net->mtu = new_mtu; + dev->hard_mtu = net->mtu + net->hard_header_len; + ax88178_set_mfb(dev); + + return 0; +} + +static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf) +{ + struct asix_data *data = (struct asix_data *)&dev->data; + int ret; + void *buf; + u16 eeprom; + int gpio0 = 0; + u32 phyid; + + usbnet_get_endpoints(dev,intf); + + buf = kmalloc(6, GFP_KERNEL); + if(!buf) { + dbg ("Cannot allocate memory for buffer"); + ret = -ENOMEM; + goto out1; + } + + eeprom = 0; + asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &eeprom); + dbg("GPIO Status: 0x%04x", eeprom); + + asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0, 0, 0, NULL); + asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom); + asix_write_cmd(dev, AX_CMD_WRITE_DISABLE, 0, 0, 0, NULL); + + dbg("EEPROM index 0x17 is 0x%04x", eeprom); + + if (eeprom == 0xffff) { + data->phymode = PHY_MODE_MARVELL; + data->ledmode = 0; + gpio0 = 1; + } else { + data->phymode = eeprom & 7; + data->ledmode = eeprom >> 8; + gpio0 = (eeprom & 0x80) ? 0 : 1; + } + dbg("GPIO0: %d, PhyMode: %d", gpio0, data->phymode); + + asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_1 | AX_GPIO_GPO1EN, 40); + if ((eeprom >> 8) != 1) { + asix_write_gpio(dev, 0x003c, 30); + asix_write_gpio(dev, 0x001c, 300); + asix_write_gpio(dev, 0x003c, 30); + } else { + dbg("gpio phymode == 1 path"); + asix_write_gpio(dev, AX_GPIO_GPO1EN, 30); + asix_write_gpio(dev, AX_GPIO_GPO1EN | AX_GPIO_GPO_1, 30); + } + + asix_sw_reset(dev, 0); + msleep(150); + + asix_sw_reset(dev, AX_SWRESET_PRL | AX_SWRESET_IPPD); + msleep(150); + + asix_write_rx_ctl(dev, 0); + + /* Get the MAC address */ + memset(buf, 0, ETH_ALEN); + if ((ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, + 0, 0, ETH_ALEN, buf)) < 0) { + dbg("Failed to read MAC address: %d", ret); + goto out2; + } + memcpy(dev->net->dev_addr, buf, ETH_ALEN); + + /* Initialize MII structure */ + dev->mii.dev = dev->net; + dev->mii.mdio_read = asix_mdio_read; + dev->mii.mdio_write = asix_mdio_write; + dev->mii.phy_id_mask = 0x1f; + dev->mii.reg_num_mask = 0xff; + dev->mii.supports_gmii = 1; + dev->net->do_ioctl = asix_ioctl; + dev->mii.phy_id = asix_get_phy_addr(dev); + dev->net->set_multicast_list = asix_set_multicast; + dev->net->ethtool_ops = &ax88178_ethtool_ops; + dev->net->change_mtu = &ax88178_change_mtu; + + phyid = asix_get_phyid(dev); + dbg("PHYID=0x%08x", phyid); + + if (data->phymode == PHY_MODE_MARVELL) { + marvell_phy_init(dev); + msleep(60); + } + + asix_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, + BMCR_RESET | BMCR_ANENABLE); + asix_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE, + ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP); + asix_mdio_write(dev->net, dev->mii.phy_id, MII_CTRL1000, + ADVERTISE_1000FULL); + + mii_nway_restart(&dev->mii); + + if ((ret = asix_write_medium_mode(dev, AX88178_MEDIUM_DEFAULT)) < 0) + goto out2; + + if ((ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL)) < 0) + goto out2; + + kfree(buf); + + /* Asix framing packs multiple eth frames into a 2K usb bulk transfer */ + if (dev->driver_info->flags & FLAG_FRAMING_AX) { + /* hard_mtu is still the default - the device does not support + jumbo eth frames */ + dev->rx_urb_size = 2048; + } + + return 0; + +out2: + kfree(buf); +out1: + return ret; +} + static const struct driver_info ax8817x_info = { .description = "ASIX AX8817x USB 2.0 Ethernet", .bind = ax88172_bind, @@ -853,8 +1371,19 @@ .link_reset = ax88772_link_reset, .reset = ax88772_link_reset, .flags = FLAG_ETHER | FLAG_FRAMING_AX, - .rx_fixup = ax88772_rx_fixup, - .tx_fixup = ax88772_tx_fixup, + .rx_fixup = asix_rx_fixup, + .tx_fixup = asix_tx_fixup, +}; + +static const struct driver_info ax88178_info = { + .description = "ASIX AX88178 USB 2.0 Ethernet", + .bind = ax88178_bind, + .status = asix_status, + .link_reset = ax88178_link_reset, + .reset = ax88178_link_reset, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .rx_fixup = asix_rx_fixup, + .tx_fixup = asix_tx_fixup, }; static const struct usb_device_id products [] = { @@ -913,7 +1442,7 @@ }, { // ASIX AX88178 10/100/1000 USB_DEVICE (0x0b95, 0x1780), - .driver_info = (unsigned long) &ax88772_info, + .driver_info = (unsigned long) &ax88178_info, }, { // Linksys USB200M Rev 2 USB_DEVICE (0x13b1, 0x0018), @@ -922,6 +1451,14 @@ // 0Q0 cable ethernet USB_DEVICE (0x1557, 0x7720), .driver_info = (unsigned long) &ax88772_info, +}, { + // DLink DUB-E100 H/W Ver B1 + USB_DEVICE (0x07d1, 0x3c05), + .driver_info = (unsigned long) &ax88772_info, +}, { + // Linksys USB1000 + USB_DEVICE (0x1737, 0x0039), + .driver_info = (unsigned long) &ax88178_info, }, { }, // END };
diff --git a/drivers/usb/net/net1080.c b/drivers/usb/net/net1080.c index a9b6eea..301baa7 100644 --- a/drivers/usb/net/net1080.c +++ b/drivers/usb/net/net1080.c
@@ -498,25 +498,24 @@ static struct sk_buff * net1080_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags) { - int padlen; struct sk_buff *skb2; struct nc_header *header = NULL; struct nc_trailer *trailer = NULL; + int padlen = sizeof (struct nc_trailer); int len = skb->len; - padlen = ((len + sizeof (struct nc_header) - + sizeof (struct nc_trailer)) & 0x01) ? 0 : 1; + if (!((len + padlen + sizeof (struct nc_header)) & 0x01)) + padlen++; if (!skb_cloned(skb)) { int headroom = skb_headroom(skb); int tailroom = skb_tailroom(skb); - if ((padlen + sizeof (struct nc_trailer)) <= tailroom - && sizeof (struct nc_header) <= headroom) + if (padlen <= tailroom && + sizeof(struct nc_header) <= headroom) /* There's enough head and tail room */ goto encapsulate; - if ((sizeof (struct nc_header) + padlen - + sizeof (struct nc_trailer)) < + if ((sizeof (struct nc_header) + padlen) < (headroom + tailroom)) { /* There's enough total room, so just readjust */ skb->data = memmove(skb->head @@ -530,7 +529,7 @@ /* Create a new skb to use with the correct size */ skb2 = skb_copy_expand(skb, sizeof (struct nc_header), - sizeof (struct nc_trailer) + padlen, + padlen, flags); dev_kfree_skb_any(skb); if (!skb2)
diff --git a/drivers/usb/net/pegasus.c b/drivers/usb/net/pegasus.c index ab21f96..b8e25af 100644 --- a/drivers/usb/net/pegasus.c +++ b/drivers/usb/net/pegasus.c
@@ -619,7 +619,7 @@ switch (urb->status) { case 0: break; - case -ETIMEDOUT: + case -ETIME: if (netif_msg_rx_err(pegasus)) pr_debug("%s: reset MAC\n", net->name); pegasus->flags &= ~PEGASUS_RX_BUSY;
diff --git a/drivers/usb/net/rtl8150.c b/drivers/usb/net/rtl8150.c index a72685b..2364c20 100644 --- a/drivers/usb/net/rtl8150.c +++ b/drivers/usb/net/rtl8150.c
@@ -438,7 +438,7 @@ break; case -ENOENT: return; /* the urb is in unlink state */ - case -ETIMEDOUT: + case -ETIME: warn("may be reset is needed?.."); goto goon; default:
diff --git a/drivers/usb/net/usbnet.c b/drivers/usb/net/usbnet.c index 54183e1..98a522f 100644 --- a/drivers/usb/net/usbnet.c +++ b/drivers/usb/net/usbnet.c
@@ -61,8 +61,11 @@ * let the USB host controller be busy for 5msec or more before an irq * is required, under load. Jumbograms change the equation. */ -#define RX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) -#define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4) +#define RX_MAX_QUEUE_MEMORY (60 * 1518) +#define RX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? \ + (RX_MAX_QUEUE_MEMORY/(dev)->rx_urb_size) : 4) +#define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? \ + (RX_MAX_QUEUE_MEMORY/(dev)->hard_mtu) : 4) // reawaken network queue this soon after stopping; else watchdog barks #define TX_TIMEOUT_JIFFIES (5*HZ) @@ -227,13 +230,23 @@ { struct usbnet *dev = netdev_priv(net); int ll_mtu = new_mtu + net->hard_header_len; + int old_hard_mtu = dev->hard_mtu; + int old_rx_urb_size = dev->rx_urb_size; - if (new_mtu <= 0 || ll_mtu > dev->hard_mtu) + if (new_mtu <= 0) return -EINVAL; // no second zero-length packet read wanted after mtu-sized packets if ((ll_mtu % dev->maxpacket) == 0) return -EDOM; net->mtu = new_mtu; + + dev->hard_mtu = net->mtu + net->hard_header_len; + if (dev->rx_urb_size == old_hard_mtu) { + dev->rx_urb_size = dev->hard_mtu; + if (dev->rx_urb_size > old_rx_urb_size) + usbnet_unlink_rx_urbs(dev); + } + return 0; } @@ -412,9 +425,9 @@ // we get controller i/o faults during khubd disconnect() delays. // throttle down resubmits, to avoid log floods; just temporarily, // so we still recover when the fault isn't a khubd delay. - case -EPROTO: // ehci - case -ETIMEDOUT: // ohci - case -EILSEQ: // uhci + case -EPROTO: + case -ETIME: + case -EILSEQ: dev->stats.rx_errors++; if (!timer_pending (&dev->delay)) { mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES); @@ -521,6 +534,17 @@ return count; } +// Flush all pending rx urbs +// minidrivers may need to do this when the MTU changes + +void usbnet_unlink_rx_urbs(struct usbnet *dev) +{ + if (netif_running(dev->net)) { + (void) unlink_urbs (dev, &dev->rxq); + tasklet_schedule(&dev->bh); + } +} +EXPORT_SYMBOL_GPL(usbnet_unlink_rx_urbs); /*-------------------------------------------------------------------------*/ @@ -629,7 +653,7 @@ devinfo (dev, "open: enable queueing " "(rx %d, tx %d) mtu %d %s framing", - RX_QLEN (dev), TX_QLEN (dev), dev->net->mtu, + (int)RX_QLEN (dev), (int)TX_QLEN (dev), dev->net->mtu, framing); } @@ -797,9 +821,9 @@ // like rx, tx gets controller i/o faults during khubd delays // and so it uses the same throttling mechanism. - case -EPROTO: // ehci - case -ETIMEDOUT: // ohci - case -EILSEQ: // uhci + case -EPROTO: + case -ETIME: + case -EILSEQ: if (!timer_pending (&dev->delay)) { mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES);
diff --git a/drivers/usb/net/usbnet.h b/drivers/usb/net/usbnet.h index 89fc495..c0746f0 100644 --- a/drivers/usb/net/usbnet.h +++ b/drivers/usb/net/usbnet.h
@@ -166,6 +166,7 @@ extern int usbnet_get_endpoints(struct usbnet *, struct usb_interface *); extern void usbnet_defer_kevent (struct usbnet *, int); extern void usbnet_skb_return (struct usbnet *, struct sk_buff *); +extern void usbnet_unlink_rx_urbs(struct usbnet *); extern u32 usbnet_get_msglevel (struct net_device *); extern void usbnet_set_msglevel (struct net_device *, u32);
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig index f5b9438..5076b9d 100644 --- a/drivers/usb/serial/Kconfig +++ b/drivers/usb/serial/Kconfig
@@ -53,6 +53,15 @@ support" be compiled as a module for this driver to be used properly. +config USB_SERIAL_AIRCABLE + tristate "AIRcable USB Bluetooth Dongle Driver (EXPERIMENTAL)" + depends on USB_SERIAL && EXPERIMENTAL + help + Say Y here if you want to use AIRcable USB Bluetoot Dongle. + + To compile this driver as a module, choose M here: the module + will be called aircable. + config USB_SERIAL_AIRPRIME tristate "USB AirPrime CDMA Wireless Driver" depends on USB_SERIAL @@ -413,6 +422,21 @@ To compile this driver as a module, choose M here: the module will be called mct_u232. +config USB_SERIAL_MOS7840 + tristate "USB Moschip 7840/7820 USB Serial Driver" + depends on USB_SERIAL + ---help--- + Say Y here if you want to use a MCS7840 Quad-Serial or MCS7820 + Dual-Serial port device from MosChip Semiconductor. + + The MCS7840 and MCS7820 have been developed to connect a wide range + of standard serial devices to a USB host. The MCS7840 has a USB + device controller connected to four (4) individual UARTs while the + MCS7820 controller connects to two (2) individual UARTs. + + To compile this driver as a module, choose M here: the + module will be called mos7840. If unsure, choose N. + config USB_SERIAL_NAVMAN tristate "USB Navman GPS device" depends on USB_SERIAL @@ -526,5 +550,6 @@ depends on USB_SERIAL_KEYSPAN_PDA || USB_SERIAL_XIRCOM || USB_SERIAL_KEYSPAN || USB_SERIAL_WHITEHEAT default y + endmenu
diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile index 8efed2c..8dce833 100644 --- a/drivers/usb/serial/Makefile +++ b/drivers/usb/serial/Makefile
@@ -11,6 +11,7 @@ usbserial-objs := usb-serial.o generic.o bus.o $(usbserial-obj-y) +obj-$(CONFIG_USB_SERIAL_AIRCABLE) += aircable.o obj-$(CONFIG_USB_SERIAL_AIRPRIME) += airprime.o obj-$(CONFIG_USB_SERIAL_ARK3116) += ark3116.o obj-$(CONFIG_USB_SERIAL_BELKIN) += belkin_sa.o @@ -33,6 +34,7 @@ obj-$(CONFIG_USB_SERIAL_KLSI) += kl5kusb105.o obj-$(CONFIG_USB_SERIAL_KOBIL_SCT) += kobil_sct.o obj-$(CONFIG_USB_SERIAL_MCT_U232) += mct_u232.o +obj-$(CONFIG_USB_SERIAL_MOS7840) += mos7840.o obj-$(CONFIG_USB_SERIAL_NAVMAN) += navman.o obj-$(CONFIG_USB_SERIAL_OMNINET) += omninet.o obj-$(CONFIG_USB_SERIAL_OPTION) += option.o
diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c new file mode 100644 index 0000000..2ccd9de --- /dev/null +++ b/drivers/usb/serial/aircable.c
@@ -0,0 +1,625 @@ +/* + * AIRcable USB Bluetooth Dongle Driver. + * + * Copyright (C) 2006 Manuel Francisco Naranjo (naranjo.manuel@gmail.com) + * This program is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License version 2 as published by the + * Free Software Foundation. + * + * The device works as an standard CDC device, it has 2 interfaces, the first + * one is for firmware access and the second is the serial one. + * The protocol is very simply, there are two posibilities reading or writing. + * When writting the first urb must have a Header that starts with 0x20 0x29 the + * next two bytes must say how much data will be sended. + * When reading the process is almost equal except that the header starts with + * 0x00 0x20. + * + * The device simply need some stuff to understand data comming from the usb + * buffer: The First and Second byte is used for a Header, the Third and Fourth + * tells the device the amount of information the package holds. + * Packages are 60 bytes long Header Stuff. + * When writting to the device the first two bytes of the header are 0x20 0x29 + * When reading the bytes are 0x00 0x20, or 0x00 0x10, there is an strange + * situation, when too much data arrives to the device because it sends the data + * but with out the header. I will use a simply hack to override this situation, + * if there is data coming that does not contain any header, then that is data + * that must go directly to the tty, as there is no documentation about if there + * is any other control code, I will simply check for the first + * one. + * + * The driver registers himself with the USB-serial core and the USB Core. I had + * to implement a probe function agains USB-serial, because other way, the + * driver was attaching himself to both interfaces. I have tryed with different + * configurations of usb_serial_driver with out exit, only the probe function + * could handle this correctly. + * + * I have taken some info from a Greg Kroah-Hartman article: + * http://www.linuxjournal.com/article/6573 + * And from Linux Device Driver Kit CD, which is a great work, the authors taken + * the work to recompile lots of information an knowladge in drivers development + * and made it all avaible inside a cd. + * URL: http://kernel.org/pub/linux/kernel/people/gregkh/ddk/ + * + */ + +#include <linux/tty.h> +#include <linux/tty_flip.h> +#include <linux/circ_buf.h> +#include <linux/usb.h> +#include <linux/usb/serial.h> + +static int debug; + +/* Vendor and Product ID */ +#define AIRCABLE_VID 0x16CA +#define AIRCABLE_USB_PID 0x1502 + +/* write buffer size defines */ +#define AIRCABLE_BUF_SIZE 2048 + +/* Protocol Stuff */ +#define HCI_HEADER_LENGTH 0x4 +#define TX_HEADER_0 0x20 +#define TX_HEADER_1 0x29 +#define RX_HEADER_0 0x00 +#define RX_HEADER_1 0x20 +#define MAX_HCI_FRAMESIZE 60 +#define HCI_COMPLETE_FRAME 64 + +/* rx_flags */ +#define THROTTLED 0x01 +#define ACTUALLY_THROTTLED 0x02 + +/* + * Version Information + */ +#define DRIVER_VERSION "v1.0b2" +#define DRIVER_AUTHOR "Naranjo, Manuel Francisco <naranjo.manuel@gmail.com>" +#define DRIVER_DESC "AIRcable USB Driver" + +/* ID table that will be registered with USB core */ +static struct usb_device_id id_table [] = { + { USB_DEVICE(AIRCABLE_VID, AIRCABLE_USB_PID) }, + { }, +}; +MODULE_DEVICE_TABLE(usb, id_table); + + +/* Internal Structure */ +struct aircable_private { + spinlock_t rx_lock; /* spinlock for the receive lines */ + struct circ_buf *tx_buf; /* write buffer */ + struct circ_buf *rx_buf; /* read buffer */ + int rx_flags; /* for throttilng */ + struct work_struct rx_work; /* work cue for the receiving line */ +}; + +/* Private methods */ + +/* Circular Buffer Methods, code from ti_usb_3410_5052 used */ +/* + * serial_buf_clear + * + * Clear out all data in the circular buffer. + */ +static void serial_buf_clear(struct circ_buf *cb) +{ + cb->head = cb->tail = 0; +} + +/* + * serial_buf_alloc + * + * Allocate a circular buffer and all associated memory. + */ +static struct circ_buf *serial_buf_alloc(void) +{ + struct circ_buf *cb; + cb = kmalloc(sizeof(struct circ_buf), GFP_KERNEL); + if (cb == NULL) + return NULL; + cb->buf = kmalloc(AIRCABLE_BUF_SIZE, GFP_KERNEL); + if (cb->buf == NULL) { + kfree(cb); + return NULL; + } + serial_buf_clear(cb); + return cb; +} + +/* + * serial_buf_free + * + * Free the buffer and all associated memory. + */ +static void serial_buf_free(struct circ_buf *cb) +{ + kfree(cb->buf); + kfree(cb); +} + +/* + * serial_buf_data_avail + * + * Return the number of bytes of data available in the circular + * buffer. + */ +static int serial_buf_data_avail(struct circ_buf *cb) +{ + return CIRC_CNT(cb->head,cb->tail,AIRCABLE_BUF_SIZE); +} + +/* + * serial_buf_put + * + * Copy data data from a user buffer and put it into the circular buffer. + * Restrict to the amount of space available. + * + * Return the number of bytes copied. + */ +static int serial_buf_put(struct circ_buf *cb, const char *buf, int count) +{ + int c, ret = 0; + while (1) { + c = CIRC_SPACE_TO_END(cb->head, cb->tail, AIRCABLE_BUF_SIZE); + if (count < c) + c = count; + if (c <= 0) + break; + memcpy(cb->buf + cb->head, buf, c); + cb->head = (cb->head + c) & (AIRCABLE_BUF_SIZE-1); + buf += c; + count -= c; + ret= c; + } + return ret; +} + +/* + * serial_buf_get + * + * Get data from the circular buffer and copy to the given buffer. + * Restrict to the amount of data available. + * + * Return the number of bytes copied. + */ +static int serial_buf_get(struct circ_buf *cb, char *buf, int count) +{ + int c, ret = 0; + while (1) { + c = CIRC_CNT_TO_END(cb->head, cb->tail, AIRCABLE_BUF_SIZE); + if (count < c) + c = count; + if (c <= 0) + break; + memcpy(buf, cb->buf + cb->tail, c); + cb->tail = (cb->tail + c) & (AIRCABLE_BUF_SIZE-1); + buf += c; + count -= c; + ret= c; + } + return ret; +} + +/* End of circula buffer methods */ + +static void aircable_send(struct usb_serial_port *port) +{ + int count, result; + struct aircable_private *priv = usb_get_serial_port_data(port); + unsigned char* buf; + dbg("%s - port %d", __FUNCTION__, port->number); + if (port->write_urb_busy) + return; + + count = min(serial_buf_data_avail(priv->tx_buf), MAX_HCI_FRAMESIZE); + if (count == 0) + return; + + buf = kzalloc(count + HCI_HEADER_LENGTH, GFP_ATOMIC); + if (!buf) { + err("%s- kzalloc(%d) failed.", __FUNCTION__, + count + HCI_HEADER_LENGTH); + return; + } + + buf[0] = TX_HEADER_0; + buf[1] = TX_HEADER_1; + buf[2] = (unsigned char)count; + buf[3] = (unsigned char)(count >> 8); + serial_buf_get(priv->tx_buf,buf + HCI_HEADER_LENGTH, MAX_HCI_FRAMESIZE); + + memcpy(port->write_urb->transfer_buffer, buf, + count + HCI_HEADER_LENGTH); + + kfree(buf); + port->write_urb_busy = 1; + usb_serial_debug_data(debug, &port->dev, __FUNCTION__, + count + HCI_HEADER_LENGTH, + port->write_urb->transfer_buffer); + port->write_urb->transfer_buffer_length = count + HCI_HEADER_LENGTH; + port->write_urb->dev = port->serial->dev; + result = usb_submit_urb(port->write_urb, GFP_ATOMIC); + + if (result) { + dev_err(&port->dev, + "%s - failed submitting write urb, error %d\n", + __FUNCTION__, result); + port->write_urb_busy = 0; + } + + schedule_work(&port->work); +} + +static void aircable_read(void *params) +{ + struct usb_serial_port *port = params; + struct aircable_private *priv = usb_get_serial_port_data(port); + struct tty_struct *tty; + unsigned char *data; + int count; + if (priv->rx_flags & THROTTLED){ + if (priv->rx_flags & ACTUALLY_THROTTLED) + schedule_work(&priv->rx_work); + return; + } + + /* By now I will flush data to the tty in packages of no more than + * 64 bytes, to ensure I do not get throttled. + * Ask USB mailing list for better aproach. + */ + tty = port->tty; + + if (!tty) + schedule_work(&priv->rx_work); + + count = min(64, serial_buf_data_avail(priv->rx_buf)); + + if (count <= 0) + return; //We have finished sending everything. + + tty_prepare_flip_string(tty, &data, count); + if (!data){ + err("%s- kzalloc(%d) failed.", __FUNCTION__, count); + return; + } + + serial_buf_get(priv->rx_buf, data, count); + + tty_flip_buffer_push(tty); + + if (serial_buf_data_avail(priv->rx_buf)) + schedule_work(&priv->rx_work); + + return; +} +/* End of private methods */ + +static int aircable_probe(struct usb_serial *serial, + const struct usb_device_id *id) +{ + struct usb_host_interface *iface_desc = serial->interface->cur_altsetting; + struct usb_endpoint_descriptor *endpoint; + int num_bulk_out=0; + int i; + + for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { + endpoint = &iface_desc->endpoint[i].desc; + if (((endpoint->bEndpointAddress & 0x80) == 0x00) && + ((endpoint->bmAttributes & 3) == 0x02)) { + /* we found our bulk out endpoint */ + dbg("found bulk out on endpoint %d", i); + ++num_bulk_out; + } + } + + if (num_bulk_out == 0) { + dbg("Invalid interface, discarding"); + return -ENODEV; + } + + return 0; +} + +static int aircable_attach (struct usb_serial *serial) +{ + struct usb_serial_port *port = serial->port[0]; + struct aircable_private *priv; + + priv = kzalloc(sizeof(struct aircable_private), GFP_KERNEL); + if (!priv){ + err("%s- kmalloc(%Zd) failed.", __FUNCTION__, + sizeof(struct aircable_private)); + return -ENOMEM; + } + + /* Allocation of Circular Buffers */ + priv->tx_buf = serial_buf_alloc(); + if (priv->tx_buf == NULL) { + kfree(priv); + return -ENOMEM; + } + + priv->rx_buf = serial_buf_alloc(); + if (priv->rx_buf == NULL) { + kfree(priv->tx_buf); + kfree(priv); + return -ENOMEM; + } + + priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); + INIT_WORK(&priv->rx_work, aircable_read, port); + + usb_set_serial_port_data(serial->port[0], priv); + + return 0; +} + +static void aircable_shutdown(struct usb_serial *serial) +{ + + struct usb_serial_port *port = serial->port[0]; + struct aircable_private *priv = usb_get_serial_port_data(port); + + dbg("%s", __FUNCTION__); + + if (priv) { + serial_buf_free(priv->tx_buf); + serial_buf_free(priv->rx_buf); + usb_set_serial_port_data(port, NULL); + kfree(priv); + } +} + +static int aircable_write_room(struct usb_serial_port *port) +{ + struct aircable_private *priv = usb_get_serial_port_data(port); + return serial_buf_data_avail(priv->tx_buf); +} + +static int aircable_write(struct usb_serial_port *port, + const unsigned char *source, int count) +{ + struct aircable_private *priv = usb_get_serial_port_data(port); + int temp; + + dbg("%s - port %d, %d bytes", __FUNCTION__, port->number, count); + + usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, source); + + if (!count){ + dbg("%s - write request of 0 bytes", __FUNCTION__); + return count; + } + + temp = serial_buf_put(priv->tx_buf, source, count); + + aircable_send(port); + + if (count > AIRCABLE_BUF_SIZE) + count = AIRCABLE_BUF_SIZE; + + return count; + +} + +static void aircable_write_bulk_callback(struct urb *urb, struct pt_regs *regs) +{ + struct usb_serial_port *port = urb->context; + int result; + + dbg("%s - urb->status: %d", __FUNCTION__ , urb->status); + + /* This has been taken from cypress_m8.c cypress_write_int_callback */ + switch (urb->status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* this urb is terminated, clean up */ + dbg("%s - urb shutting down with status: %d", + __FUNCTION__, urb->status); + port->write_urb_busy = 0; + return; + default: + /* error in the urb, so we have to resubmit it */ + dbg("%s - Overflow in write", __FUNCTION__); + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, urb->status); + port->write_urb->transfer_buffer_length = 1; + port->write_urb->dev = port->serial->dev; + result = usb_submit_urb(port->write_urb, GFP_KERNEL); + if (result) + dev_err(&urb->dev->dev, + "%s - failed resubmitting write urb, error %d\n", + __FUNCTION__, result); + else + return; + } + + port->write_urb_busy = 0; + + aircable_send(port); +} + +static void aircable_read_bulk_callback(struct urb *urb, struct pt_regs *regs) +{ + struct usb_serial_port *port = urb->context; + struct aircable_private *priv = usb_get_serial_port_data(port); + struct tty_struct *tty; + unsigned long no_packages, remaining, package_length, i; + int result, shift = 0; + unsigned char *temp; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (urb->status) { + dbg("%s - urb->status = %d", __FUNCTION__, urb->status); + if (!port->open_count) { + dbg("%s - port is closed, exiting.", __FUNCTION__); + return; + } + if (urb->status == -EPROTO) { + dbg("%s - caught -EPROTO, resubmitting the urb", + __FUNCTION__); + usb_fill_bulk_urb(port->read_urb, port->serial->dev, + usb_rcvbulkpipe(port->serial->dev, + port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, + port->read_urb->transfer_buffer_length, + aircable_read_bulk_callback, port); + + result = usb_submit_urb(urb, GFP_ATOMIC); + if (result) + dev_err(&urb->dev->dev, + "%s - failed resubmitting read urb, error %d\n", + __FUNCTION__, result); + return; + } + dbg("%s - unable to handle the error, exiting.", __FUNCTION__); + return; + } + + usb_serial_debug_data(debug, &port->dev, __FUNCTION__, + urb->actual_length,urb->transfer_buffer); + + tty = port->tty; + if (tty && urb->actual_length) { + if (urb->actual_length <= 2) { + /* This is an incomplete package */ + serial_buf_put(priv->rx_buf, urb->transfer_buffer, + urb->actual_length); + } else { + temp = urb->transfer_buffer; + if (temp[0] == RX_HEADER_0) + shift = HCI_HEADER_LENGTH; + + remaining = urb->actual_length; + no_packages = urb->actual_length / (HCI_COMPLETE_FRAME); + + if (urb->actual_length % HCI_COMPLETE_FRAME != 0) + no_packages+=1; + + for (i = 0; i < no_packages ;i++) { + if (remaining > (HCI_COMPLETE_FRAME)) + package_length = HCI_COMPLETE_FRAME; + else + package_length = remaining; + remaining -= package_length; + + serial_buf_put(priv->rx_buf, + urb->transfer_buffer + shift + + (HCI_COMPLETE_FRAME) * (i), + package_length - shift); + } + } + aircable_read(port); + } + + /* Schedule the next read _if_ we are still open */ + if (port->open_count) { + usb_fill_bulk_urb(port->read_urb, port->serial->dev, + usb_rcvbulkpipe(port->serial->dev, + port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, + port->read_urb->transfer_buffer_length, + aircable_read_bulk_callback, port); + + result = usb_submit_urb(urb, GFP_ATOMIC); + if (result) + dev_err(&urb->dev->dev, + "%s - failed resubmitting read urb, error %d\n", + __FUNCTION__, result); + } + + return; +} + +/* Based on ftdi_sio.c throttle */ +static void aircable_throttle(struct usb_serial_port *port) +{ + struct aircable_private *priv = usb_get_serial_port_data(port); + unsigned long flags; + + dbg("%s - port %d", __FUNCTION__, port->number); + + spin_lock_irqsave(&priv->rx_lock, flags); + priv->rx_flags |= THROTTLED; + spin_unlock_irqrestore(&priv->rx_lock, flags); +} + +/* Based on ftdi_sio.c unthrottle */ +static void aircable_unthrottle(struct usb_serial_port *port) +{ + struct aircable_private *priv = usb_get_serial_port_data(port); + int actually_throttled; + unsigned long flags; + + dbg("%s - port %d", __FUNCTION__, port->number); + + spin_lock_irqsave(&priv->rx_lock, flags); + actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; + priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); + spin_unlock_irqrestore(&priv->rx_lock, flags); + + if (actually_throttled) + schedule_work(&priv->rx_work); +} + +static struct usb_serial_driver aircable_device = { + .description = "aircable", + .id_table = id_table, + .num_ports = 1, + .attach = aircable_attach, + .probe = aircable_probe, + .shutdown = aircable_shutdown, + .write = aircable_write, + .write_room = aircable_write_room, + .write_bulk_callback = aircable_write_bulk_callback, + .read_bulk_callback = aircable_read_bulk_callback, + .throttle = aircable_throttle, + .unthrottle = aircable_unthrottle, +}; + +static struct usb_driver aircable_driver = { + .name = "aircable", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .id_table = id_table, +}; + +static int __init aircable_init (void) +{ + int retval; + retval = usb_serial_register(&aircable_device); + if (retval) + goto failed_serial_register; + retval = usb_register(&aircable_driver); + if (retval) + goto failed_usb_register; + return 0; + +failed_serial_register: + usb_serial_deregister(&aircable_device); +failed_usb_register: + return retval; +} + +static void __exit aircable_exit (void) +{ + usb_deregister(&aircable_driver); + usb_serial_deregister(&aircable_device); +} + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_VERSION(DRIVER_VERSION); +MODULE_LICENSE("GPL"); + +module_init(aircable_init); +module_exit(aircable_exit); + +module_param(debug, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/airprime.c b/drivers/usb/serial/airprime.c index 6208253..6e1a84a 100644 --- a/drivers/usb/serial/airprime.c +++ b/drivers/usb/serial/airprime.c
@@ -1,7 +1,7 @@ /* * AirPrime CDMA Wireless Serial USB driver * - * Copyright (C) 2005 Greg Kroah-Hartman <gregkh@suse.de> + * Copyright (C) 2005-2006 Greg Kroah-Hartman <gregkh@suse.de> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version @@ -11,26 +11,264 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/tty.h> +#include <linux/tty_flip.h> #include <linux/module.h> #include <linux/usb.h> #include <linux/usb/serial.h> static struct usb_device_id id_table [] = { { USB_DEVICE(0x0c88, 0x17da) }, /* Kyocera Wireless KPC650/Passport */ - { USB_DEVICE(0xf3d, 0x0112) }, /* AirPrime CDMA Wireless PC Card */ - { USB_DEVICE(0x1410, 0x1110) }, /* Novatel Wireless Merlin CDMA */ + { USB_DEVICE(0x0f3d, 0x0112) }, /* AirPrime CDMA Wireless PC Card */ + { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */ + { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */ { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless Aircard 580 */ { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */ + { USB_DEVICE(0x1410, 0x1110) }, /* Novatel Wireless Merlin CDMA */ { }, }; MODULE_DEVICE_TABLE(usb, id_table); +#define URB_TRANSFER_BUFFER_SIZE 4096 +#define NUM_READ_URBS 4 +#define NUM_WRITE_URBS 4 +#define NUM_BULK_EPS 3 +#define MAX_BULK_EPS 6 + +/* if overridden by the user, then use their value for the size of the + * read and write urbs, and the number of endpoints */ +static int buffer_size = URB_TRANSFER_BUFFER_SIZE; +static int endpoints = NUM_BULK_EPS; +static int debug; +struct airprime_private { + spinlock_t lock; + int outstanding_urbs; + int throttled; + struct urb *read_urbp[NUM_READ_URBS]; +}; + +static void airprime_read_bulk_callback(struct urb *urb, struct pt_regs *regs) +{ + struct usb_serial_port *port = urb->context; + unsigned char *data = urb->transfer_buffer; + struct tty_struct *tty; + int result; + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (urb->status) { + dbg("%s - nonzero read bulk status received: %d", + __FUNCTION__, urb->status); + /* something happened, so free up the memory for this urb */ + if (urb->transfer_buffer) { + kfree (urb->transfer_buffer); + urb->transfer_buffer = NULL; + } + return; + } + usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data); + + tty = port->tty; + if (tty && urb->actual_length) { + tty_insert_flip_string (tty, data, urb->actual_length); + tty_flip_buffer_push (tty); + } + + result = usb_submit_urb (urb, GFP_ATOMIC); + if (result) + dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", + __FUNCTION__, result); + return; +} + +static void airprime_write_bulk_callback(struct urb *urb, struct pt_regs *regs) +{ + struct usb_serial_port *port = urb->context; + struct airprime_private *priv = usb_get_serial_port_data(port); + unsigned long flags; + + dbg("%s - port %d", __FUNCTION__, port->number); + + /* free up the transfer buffer, as usb_free_urb() does not do this */ + kfree (urb->transfer_buffer); + + if (urb->status) + dbg("%s - nonzero write bulk status received: %d", + __FUNCTION__, urb->status); + spin_lock_irqsave(&priv->lock, flags); + --priv->outstanding_urbs; + spin_unlock_irqrestore(&priv->lock, flags); + + usb_serial_port_softint(port); +} + +static int airprime_open(struct usb_serial_port *port, struct file *filp) +{ + struct airprime_private *priv = usb_get_serial_port_data(port); + struct usb_serial *serial = port->serial; + struct urb *urb; + char *buffer = NULL; + int i; + int result = 0; + + dbg("%s - port %d", __FUNCTION__, port->number); + + /* initialize our private data structure if it isn't already created */ + if (!priv) { + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) { + result = -ENOMEM; + goto out; + } + spin_lock_init(&priv->lock); + usb_set_serial_port_data(port, priv); + } + + for (i = 0; i < NUM_READ_URBS; ++i) { + buffer = kmalloc(buffer_size, GFP_KERNEL); + if (!buffer) { + dev_err(&port->dev, "%s - out of memory.\n", + __FUNCTION__); + result = -ENOMEM; + goto errout; + } + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) { + dev_err(&port->dev, "%s - no more urbs?\n", + __FUNCTION__); + result = -ENOMEM; + goto errout; + } + usb_fill_bulk_urb(urb, serial->dev, + usb_rcvbulkpipe(serial->dev, + port->bulk_out_endpointAddress), + buffer, buffer_size, + airprime_read_bulk_callback, port); + result = usb_submit_urb(urb, GFP_KERNEL); + if (result) { + dev_err(&port->dev, + "%s - failed submitting read urb %d for port %d, error %d\n", + __FUNCTION__, i, port->number, result); + goto errout; + } + /* remember this urb so we can kill it when the port is closed */ + priv->read_urbp[i] = urb; + } + goto out; + + errout: + /* some error happened, cancel any submitted urbs and clean up anything that + got allocated successfully */ + + for ( ; i >= 0; --i) { + urb = priv->read_urbp[i]; + if (urb) { + /* This urb was submitted successfully. So we have to + cancel it. + Unlinking the urb will invoke read_bulk_callback() + with an error status, so its transfer buffer will + be freed there */ + if (usb_unlink_urb (urb) != -EINPROGRESS) { + /* comments in drivers/usb/core/urb.c say this + can only happen if the urb was never submitted, + or has completed already. + Either way we may have to free the transfer + buffer here. */ + if (urb->transfer_buffer) { + kfree (urb->transfer_buffer); + urb->transfer_buffer = NULL; + } + } + usb_free_urb (urb); + } + } + + out: + return result; +} + +static void airprime_close(struct usb_serial_port *port, struct file * filp) +{ + struct airprime_private *priv = usb_get_serial_port_data(port); + int i; + + dbg("%s - port %d", __FUNCTION__, port->number); + + /* killing the urb will invoke read_bulk_callback() with an error status, + so the transfer buffer will be freed there */ + for (i = 0; i < NUM_READ_URBS; ++i) { + usb_kill_urb (priv->read_urbp[i]); + usb_free_urb (priv->read_urbp[i]); + } + + /* free up private structure */ + kfree (priv); + usb_set_serial_port_data(port, NULL); +} + +static int airprime_write(struct usb_serial_port *port, + const unsigned char *buf, int count) +{ + struct airprime_private *priv = usb_get_serial_port_data(port); + struct usb_serial *serial = port->serial; + struct urb *urb; + unsigned char *buffer; + unsigned long flags; + int status; + dbg("%s - port %d", __FUNCTION__, port->number); + + spin_lock_irqsave(&priv->lock, flags); + if (priv->outstanding_urbs > NUM_WRITE_URBS) { + spin_unlock_irqrestore(&priv->lock, flags); + dbg("%s - write limit hit\n", __FUNCTION__); + return 0; + } + spin_unlock_irqrestore(&priv->lock, flags); + buffer = kmalloc(count, GFP_ATOMIC); + if (!buffer) { + dev_err(&port->dev, "out of memory\n"); + return -ENOMEM; + } + urb = usb_alloc_urb(0, GFP_ATOMIC); + if (!urb) { + dev_err(&port->dev, "no more free urbs\n"); + kfree (buffer); + return -ENOMEM; + } + memcpy (buffer, buf, count); + + usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, buffer); + + usb_fill_bulk_urb(urb, serial->dev, + usb_sndbulkpipe(serial->dev, + port->bulk_out_endpointAddress), + buffer, count, + airprime_write_bulk_callback, port); + + /* send it down the pipe */ + status = usb_submit_urb(urb, GFP_ATOMIC); + if (status) { + dev_err(&port->dev, + "%s - usb_submit_urb(write bulk) failed with status = %d\n", + __FUNCTION__, status); + count = status; + kfree (buffer); + } else { + spin_lock_irqsave(&priv->lock, flags); + ++priv->outstanding_urbs; + spin_unlock_irqrestore(&priv->lock, flags); + } + /* we are done with this urb, so let the host driver + * really free it when it is finished with it */ + usb_free_urb (urb); + return count; +} + static struct usb_driver airprime_driver = { .name = "airprime", .probe = usb_serial_probe, .disconnect = usb_serial_disconnect, .id_table = id_table, - .no_dynamic_id = 1, + .no_dynamic_id = 1, }; static struct usb_serial_driver airprime_device = { @@ -42,13 +280,17 @@ .num_interrupt_in = NUM_DONT_CARE, .num_bulk_in = NUM_DONT_CARE, .num_bulk_out = NUM_DONT_CARE, - .num_ports = 1, + .open = airprime_open, + .close = airprime_close, + .write = airprime_write, }; static int __init airprime_init(void) { int retval; + airprime_device.num_ports = + (endpoints > 0 && endpoints <= MAX_BULK_EPS) ? endpoints : NUM_BULK_EPS; retval = usb_serial_register(&airprime_device); if (retval) return retval; @@ -60,6 +302,8 @@ static void __exit airprime_exit(void) { + dbg("%s", __FUNCTION__); + usb_deregister(&airprime_driver); usb_serial_deregister(&airprime_device); } @@ -67,3 +311,10 @@ module_init(airprime_init); module_exit(airprime_exit); MODULE_LICENSE("GPL"); + +module_param(debug, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Debug enabled"); +module_param(buffer_size, int, 0); +MODULE_PARM_DESC(buffer_size, "Size of the transfer buffers in bytes (default 4096)"); +module_param(endpoints, int, 0); +MODULE_PARM_DESC(endpoints, "Number of bulk EPs to configure (default 3)");
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index 970d9ef..ca52f12 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c
@@ -1,4 +1,7 @@ /* + * Copyright (C) 2006 + * Simon Schulz (ark3116_driver <at> auctionant.de) + * * ark3116 * - implements a driver for the arkmicro ark3116 chipset (vendor=0x6547, * productid=0x0232) (used in a datacable called KQ-U8A) @@ -8,8 +11,6 @@ * * - based on logs created by usbsnoopy * - * Author : Simon Schulz [ark3116_driver<AT>auctionant.de] - * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your @@ -22,6 +23,8 @@ #include <linux/module.h> #include <linux/usb.h> #include <linux/usb/serial.h> +#include <linux/serial.h> +#include <asm/uaccess.h> static int debug; @@ -43,10 +46,10 @@ { int result; result = usb_control_msg(serial->dev, - usb_sndctrlpipe(serial->dev,0), + usb_sndctrlpipe(serial->dev, 0), request, requesttype, value, index, - NULL,0x00, 1000); - dbg("%03d > ok",seq); + NULL, 0x00, 1000); + dbg("%03d > ok", seq); } static inline void ARK3116_RCV(struct usb_serial *serial, int seq, @@ -56,27 +59,25 @@ { int result; result = usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev,0), - request, requesttype, value, index, - buf, 0x0000001, 1000); + usb_rcvctrlpipe(serial->dev, 0), + request, requesttype, value, index, + buf, 0x0000001, 1000); if (result) - dbg("%03d < %d bytes [0x%02X]",seq, result, buf[0]); + dbg("%03d < %d bytes [0x%02X]", seq, result, buf[0]); else dbg("%03d < 0 bytes", seq); } - static inline void ARK3116_RCV_QUIET(struct usb_serial *serial, __u8 request, __u8 requesttype, __u16 value, __u16 index, char *buf) { usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev,0), + usb_rcvctrlpipe(serial->dev, 0), request, requesttype, value, index, buf, 0x0000001, 1000); } - static int ark3116_attach(struct usb_serial *serial) { char *buf; @@ -84,10 +85,10 @@ int i; for (i = 0; i < serial->num_ports; ++i) { - priv = kmalloc (sizeof (struct ark3116_private), GFP_KERNEL); + priv = kmalloc(sizeof (struct ark3116_private), GFP_KERNEL); if (!priv) goto cleanup; - memset (priv, 0x00, sizeof (struct ark3116_private)); + memset(priv, 0x00, sizeof (struct ark3116_private)); spin_lock_init(&priv->lock); usb_set_serial_port_data(serial->port[i], priv); @@ -95,63 +96,62 @@ buf = kmalloc(1, GFP_KERNEL); if (!buf) { - dbg("error kmalloc -> out of mem ?"); + dbg("error kmalloc -> out of mem?"); goto cleanup; } /* 3 */ - ARK3116_SND(serial, 3,0xFE,0x40,0x0008,0x0002); - ARK3116_SND(serial, 4,0xFE,0x40,0x0008,0x0001); - ARK3116_SND(serial, 5,0xFE,0x40,0x0000,0x0008); - ARK3116_SND(serial, 6,0xFE,0x40,0x0000,0x000B); + ARK3116_SND(serial, 3, 0xFE, 0x40, 0x0008, 0x0002); + ARK3116_SND(serial, 4, 0xFE, 0x40, 0x0008, 0x0001); + ARK3116_SND(serial, 5, 0xFE, 0x40, 0x0000, 0x0008); + ARK3116_SND(serial, 6, 0xFE, 0x40, 0x0000, 0x000B); /* <-- seq7 */ - ARK3116_RCV(serial, 7,0xFE,0xC0,0x0000,0x0003, 0x00, buf); - ARK3116_SND(serial, 8,0xFE,0x40,0x0080,0x0003); - ARK3116_SND(serial, 9,0xFE,0x40,0x001A,0x0000); - ARK3116_SND(serial,10,0xFE,0x40,0x0000,0x0001); - ARK3116_SND(serial,11,0xFE,0x40,0x0000,0x0003); + ARK3116_RCV(serial, 7, 0xFE, 0xC0, 0x0000, 0x0003, 0x00, buf); + ARK3116_SND(serial, 8, 0xFE, 0x40, 0x0080, 0x0003); + ARK3116_SND(serial, 9, 0xFE, 0x40, 0x001A, 0x0000); + ARK3116_SND(serial, 10, 0xFE, 0x40, 0x0000, 0x0001); + ARK3116_SND(serial, 11, 0xFE, 0x40, 0x0000, 0x0003); /* <-- seq12 */ - ARK3116_RCV(serial,12,0xFE,0xC0,0x0000,0x0004, 0x00, buf); - ARK3116_SND(serial,13,0xFE,0x40,0x0000,0x0004); + ARK3116_RCV(serial, 12, 0xFE, 0xC0, 0x0000, 0x0004, 0x00, buf); + ARK3116_SND(serial, 13, 0xFE, 0x40, 0x0000, 0x0004); /* 14 */ - ARK3116_RCV(serial,14,0xFE,0xC0,0x0000,0x0004, 0x00, buf); - ARK3116_SND(serial,15,0xFE,0x40,0x0000,0x0004); + ARK3116_RCV(serial, 14, 0xFE, 0xC0, 0x0000, 0x0004, 0x00, buf); + ARK3116_SND(serial, 15, 0xFE, 0x40, 0x0000, 0x0004); /* 16 */ - ARK3116_RCV(serial,16,0xFE,0xC0,0x0000,0x0004, 0x00, buf); + ARK3116_RCV(serial, 16, 0xFE, 0xC0, 0x0000, 0x0004, 0x00, buf); /* --> seq17 */ - ARK3116_SND(serial,17,0xFE,0x40,0x0001,0x0004); + ARK3116_SND(serial, 17, 0xFE, 0x40, 0x0001, 0x0004); /* <-- seq18 */ - ARK3116_RCV(serial,18,0xFE,0xC0,0x0000,0x0004, 0x01, buf); + ARK3116_RCV(serial, 18, 0xFE, 0xC0, 0x0000, 0x0004, 0x01, buf); /* --> seq19 */ - ARK3116_SND(serial,19,0xFE,0x40,0x0003,0x0004); - + ARK3116_SND(serial, 19, 0xFE, 0x40, 0x0003, 0x0004); /* <-- seq20 */ - /* seems like serial port status info (RTS, CTS,...) */ - /* returns modem control line status ?! */ - ARK3116_RCV(serial,20,0xFE,0xC0,0x0000,0x0006, 0xFF, buf); + /* seems like serial port status info (RTS, CTS, ...) */ + /* returns modem control line status?! */ + ARK3116_RCV(serial, 20, 0xFE, 0xC0, 0x0000, 0x0006, 0xFF, buf); - /* set 9600 baud & do some init ?! */ - ARK3116_SND(serial,147,0xFE,0x40,0x0083,0x0003); - ARK3116_SND(serial,148,0xFE,0x40,0x0038,0x0000); - ARK3116_SND(serial,149,0xFE,0x40,0x0001,0x0001); - ARK3116_SND(serial,150,0xFE,0x40,0x0003,0x0003); - ARK3116_RCV(serial,151,0xFE,0xC0,0x0000,0x0004,0x03, buf); - ARK3116_SND(serial,152,0xFE,0x40,0x0000,0x0003); - ARK3116_RCV(serial,153,0xFE,0xC0,0x0000,0x0003,0x00, buf); - ARK3116_SND(serial,154,0xFE,0x40,0x0003,0x0003); + /* set 9600 baud & do some init?! */ + ARK3116_SND(serial, 147, 0xFE, 0x40, 0x0083, 0x0003); + ARK3116_SND(serial, 148, 0xFE, 0x40, 0x0038, 0x0000); + ARK3116_SND(serial, 149, 0xFE, 0x40, 0x0001, 0x0001); + ARK3116_SND(serial, 150, 0xFE, 0x40, 0x0003, 0x0003); + ARK3116_RCV(serial, 151, 0xFE, 0xC0, 0x0000, 0x0004, 0x03, buf); + ARK3116_SND(serial, 152, 0xFE, 0x40, 0x0000, 0x0003); + ARK3116_RCV(serial, 153, 0xFE, 0xC0, 0x0000, 0x0003, 0x00, buf); + ARK3116_SND(serial, 154, 0xFE, 0x40, 0x0003, 0x0003); kfree(buf); - return(0); + return 0; cleanup: - for (--i; i>=0; --i) + for (--i; i >= 0; --i) usb_set_serial_port_data(serial->port[i], NULL); return -ENOMEM; } @@ -180,7 +180,8 @@ spin_lock_irqsave(&priv->lock, flags); if (!priv->termios_initialized) { *(port->tty->termios) = tty_std_termios; - port->tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; + port->tty->termios->c_cflag = B9600 | CS8 + | CREAD | HUPCL | CLOCAL; priv->termios_initialized = 1; } spin_unlock_irqrestore(&priv->lock, flags); @@ -204,8 +205,8 @@ } /* set data bit count (8/7/6/5) */ - if (cflag & CSIZE){ - switch (cflag & CSIZE){ + if (cflag & CSIZE) { + switch (cflag & CSIZE) { case CS5: config |= 0x00; dbg("setting CS5"); @@ -219,7 +220,8 @@ dbg("setting CS7"); break; default: - err ("CSIZE was set but not CS5-CS8, using CS8!"); + err("CSIZE was set but not CS5-CS8, using CS8!"); + /* fall through */ case CS8: config |= 0x03; dbg("setting CS8"); @@ -227,8 +229,8 @@ } } - /* set parity (NONE,EVEN,ODD) */ - if (cflag & PARENB){ + /* set parity (NONE/EVEN/ODD) */ + if (cflag & PARENB) { if (cflag & PARODD) { config |= 0x08; dbg("setting parity to ODD"); @@ -240,20 +242,19 @@ dbg("setting parity to NONE"); } - /* SET STOPBIT (1/2) */ + /* set stop bit (1/2) */ if (cflag & CSTOPB) { config |= 0x04; - dbg ("setting 2 stop bits"); + dbg("setting 2 stop bits"); } else { - dbg ("setting 1 stop bit"); + dbg("setting 1 stop bit"); } - - /* set baudrate: */ + /* set baudrate */ baud = 0; - switch (cflag & CBAUD){ + switch (cflag & CBAUD) { case B0: - err("can't set 0baud, using 9600 instead"); + err("can't set 0 baud, using 9600 instead"); break; case B75: baud = 75; break; case B150: baud = 150; break; @@ -285,38 +286,40 @@ */ if (baud == 460800) /* strange, for 460800 the formula is wrong - * (dont use round(), then 9600baud is wrong) */ + * if using round() then 9600baud is wrong) */ ark3116_baud = 7; else ark3116_baud = 3000000 / baud; /* ? */ - ARK3116_RCV(serial,0,0xFE,0xC0,0x0000,0x0003, 0x03, buf); + ARK3116_RCV(serial, 0, 0xFE, 0xC0, 0x0000, 0x0003, 0x03, buf); + /* offset = buf[0]; */ /* offset = 0x03; */ - /* dbg("using 0x%04X as target for 0x0003:",0x0080+offset); */ - + /* dbg("using 0x%04X as target for 0x0003:", 0x0080 + offset); */ /* set baudrate */ - dbg("setting baudrate to %d (->reg=%d)",baud,ark3116_baud); - ARK3116_SND(serial,147,0xFE,0x40,0x0083,0x0003); - ARK3116_SND(serial,148,0xFE,0x40,(ark3116_baud & 0x00FF) ,0x0000); - ARK3116_SND(serial,149,0xFE,0x40,(ark3116_baud & 0xFF00)>>8,0x0001); - ARK3116_SND(serial,150,0xFE,0x40,0x0003,0x0003); + dbg("setting baudrate to %d (->reg=%d)", baud, ark3116_baud); + ARK3116_SND(serial, 147, 0xFE, 0x40, 0x0083, 0x0003); + ARK3116_SND(serial, 148, 0xFE, 0x40, + (ark3116_baud & 0x00FF), 0x0000); + ARK3116_SND(serial, 149, 0xFE, 0x40, + (ark3116_baud & 0xFF00) >> 8, 0x0001); + ARK3116_SND(serial, 150, 0xFE, 0x40, 0x0003, 0x0003); /* ? */ - ARK3116_RCV(serial,151,0xFE,0xC0,0x0000,0x0004,0x03, buf); - ARK3116_SND(serial,152,0xFE,0x40,0x0000,0x0003); + ARK3116_RCV(serial, 151, 0xFE, 0xC0, 0x0000, 0x0004, 0x03, buf); + ARK3116_SND(serial, 152, 0xFE, 0x40, 0x0000, 0x0003); /* set data bit count, stop bit count & parity: */ dbg("updating bit count, stop bit or parity (cfg=0x%02X)", config); - ARK3116_RCV(serial,153,0xFE,0xC0,0x0000,0x0003,0x00, buf); - ARK3116_SND(serial,154,0xFE,0x40,config,0x0003); + ARK3116_RCV(serial, 153, 0xFE, 0xC0, 0x0000, 0x0003, 0x00, buf); + ARK3116_SND(serial, 154, 0xFE, 0x40, config, 0x0003); if (cflag & CRTSCTS) - dbg("CRTSCTS not supported by chipset ?!"); + dbg("CRTSCTS not supported by chipset?!"); - /* TEST ARK3116_SND(154,0xFE,0x40,0xFFFF, 0x0006); */ + /* TEST ARK3116_SND(154, 0xFE, 0x40, 0xFFFF, 0x0006); */ kfree(buf); return; @@ -329,11 +332,11 @@ char *buf; int result = 0; - dbg("%s - port %d", __FUNCTION__, port->number); + dbg("%s - port %d", __FUNCTION__, port->number); buf = kmalloc(1, GFP_KERNEL); if (!buf) { - dbg("error kmalloc -> out of mem ?"); + dbg("error kmalloc -> out of mem?"); return -ENOMEM; } @@ -342,44 +345,68 @@ return result; /* open */ - ARK3116_RCV(serial,111,0xFE,0xC0,0x0000,0x0003, 0x02, buf); + ARK3116_RCV(serial, 111, 0xFE, 0xC0, 0x0000, 0x0003, 0x02, buf); - ARK3116_SND(serial,112,0xFE,0x40,0x0082,0x0003); - ARK3116_SND(serial,113,0xFE,0x40,0x001A,0x0000); - ARK3116_SND(serial,114,0xFE,0x40,0x0000,0x0001); - ARK3116_SND(serial,115,0xFE,0x40,0x0002,0x0003); + ARK3116_SND(serial, 112, 0xFE, 0x40, 0x0082, 0x0003); + ARK3116_SND(serial, 113, 0xFE, 0x40, 0x001A, 0x0000); + ARK3116_SND(serial, 114, 0xFE, 0x40, 0x0000, 0x0001); + ARK3116_SND(serial, 115, 0xFE, 0x40, 0x0002, 0x0003); - ARK3116_RCV(serial,116,0xFE,0xC0,0x0000,0x0004, 0x03, buf); - ARK3116_SND(serial,117,0xFE,0x40,0x0002,0x0004); + ARK3116_RCV(serial, 116, 0xFE, 0xC0, 0x0000, 0x0004, 0x03, buf); + ARK3116_SND(serial, 117, 0xFE, 0x40, 0x0002, 0x0004); - ARK3116_RCV(serial,118,0xFE,0xC0,0x0000,0x0004, 0x02, buf); - ARK3116_SND(serial,119,0xFE,0x40,0x0000,0x0004); + ARK3116_RCV(serial, 118, 0xFE, 0xC0, 0x0000, 0x0004, 0x02, buf); + ARK3116_SND(serial, 119, 0xFE, 0x40, 0x0000, 0x0004); - ARK3116_RCV(serial,120,0xFE,0xC0,0x0000,0x0004, 0x00, buf); + ARK3116_RCV(serial, 120, 0xFE, 0xC0, 0x0000, 0x0004, 0x00, buf); - ARK3116_SND(serial,121,0xFE,0x40,0x0001,0x0004); + ARK3116_SND(serial, 121, 0xFE, 0x40, 0x0001, 0x0004); - ARK3116_RCV(serial,122,0xFE,0xC0,0x0000,0x0004, 0x01, buf); + ARK3116_RCV(serial, 122, 0xFE, 0xC0, 0x0000, 0x0004, 0x01, buf); - ARK3116_SND(serial,123,0xFE,0x40,0x0003,0x0004); + ARK3116_SND(serial, 123, 0xFE, 0x40, 0x0003, 0x0004); - /* returns different values (control lines ?!) */ - ARK3116_RCV(serial,124,0xFE,0xC0,0x0000,0x0006, 0xFF, buf); + /* returns different values (control lines?!) */ + ARK3116_RCV(serial, 124, 0xFE, 0xC0, 0x0000, 0x0006, 0xFF, buf); - /* initialise termios: */ + /* initialise termios */ if (port->tty) ark3116_set_termios(port, &tmp_termios); kfree(buf); return result; - } static int ark3116_ioctl(struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg) { - dbg("ioctl not supported yet..."); + struct serial_struct serstruct; + void __user *user_arg = (void __user *)arg; + + switch (cmd) { + case TIOCGSERIAL: + /* XXX: Some of these values are probably wrong. */ + memset(&serstruct, 0, sizeof (serstruct)); + serstruct.type = PORT_16654; + serstruct.line = port->serial->minor; + serstruct.port = port->number; + serstruct.custom_divisor = 0; + serstruct.baud_base = 460800; + + if (copy_to_user(user_arg, &serstruct, sizeof (serstruct))) + return -EFAULT; + + return 0; + case TIOCSSERIAL: + if (copy_from_user(&serstruct, user_arg, sizeof (serstruct))) + return -EFAULT; + return 0; + default: + dbg("%s cmd 0x%04x not supported", __FUNCTION__, cmd); + break; + } + return -ENOIOCTLCMD; } @@ -389,7 +416,7 @@ char *buf; char temp; - /* seems like serial port status info (RTS, CTS,...) is stored + /* seems like serial port status info (RTS, CTS, ...) is stored * in reg(?) 0x0006 * pcb connection point 11 = GND -> sets bit4 of response * pcb connection point 7 = GND -> sets bit6 of response @@ -401,16 +428,16 @@ return -ENOMEM; } - /* read register: */ - ARK3116_RCV_QUIET(serial,0xFE,0xC0,0x0000,0x0006,buf); + /* read register */ + ARK3116_RCV_QUIET(serial, 0xFE, 0xC0, 0x0000, 0x0006, buf); temp = buf[0]; kfree(buf); - /* i do not really know if bit4=CTS and bit6=DSR... was just a - * quick guess !! + /* i do not really know if bit4=CTS and bit6=DSR... just a + * quick guess! */ - return (temp & (1<<4) ? TIOCM_CTS : 0) | - (temp & (1<<6) ? TIOCM_DSR : 0); + return (temp & (1<<4) ? TIOCM_CTS : 0) + | (temp & (1<<6) ? TIOCM_DSR : 0); } static struct usb_driver ark3116_driver = {
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index ee70fdd..e1173c1 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c
@@ -129,6 +129,9 @@ int cmd_ctrl; /* always set this to 1 before issuing a command */ struct cypress_buf *buf; /* write buffer */ int write_urb_in_use; /* write urb in use indicator */ + int write_urb_interval; /* interval to use for write urb */ + int read_urb_interval; /* interval to use for read urb */ + int comm_is_ok; /* true if communication is (still) ok */ int termios_initialized; __u8 line_control; /* holds dtr / rts value */ __u8 current_status; /* received from last read - info on dsr,cts,cd,ri,etc */ @@ -168,6 +171,7 @@ static int cypress_chars_in_buffer (struct usb_serial_port *port); static void cypress_throttle (struct usb_serial_port *port); static void cypress_unthrottle (struct usb_serial_port *port); +static void cypress_set_dead (struct usb_serial_port *port); static void cypress_read_int_callback (struct urb *urb, struct pt_regs *regs); static void cypress_write_int_callback (struct urb *urb, struct pt_regs *regs); /* baud helper functions */ @@ -288,6 +292,9 @@ priv = usb_get_serial_port_data(port); + if (!priv->comm_is_ok) + return -ENODEV; + switch(cypress_request_type) { case CYPRESS_SET_CONFIG: @@ -365,13 +372,12 @@ if (tries++ >= 3) break; - if (retval == EPIPE) - usb_clear_halt(port->serial->dev, 0x00); - } while (retval != 8 && retval != ENODEV); + } while (retval != 8 && retval != -ENODEV); - if (retval != 8) + if (retval != 8) { err("%s - failed sending serial line settings - %d", __FUNCTION__, retval); - else { + cypress_set_dead(port); + } else { spin_lock_irqsave(&priv->lock, flags); priv->baud_rate = new_baudrate; priv->cbr_mask = baud_mask; @@ -392,12 +398,11 @@ if (tries++ >= 3) break; - if (retval == EPIPE) - usb_clear_halt(port->serial->dev, 0x00); - } while (retval != 5 && retval != ENODEV); + } while (retval != 5 && retval != -ENODEV); if (retval != 5) { err("%s - failed to retrieve serial line settings - %d", __FUNCTION__, retval); + cypress_set_dead(port); return retval; } else { spin_lock_irqsave(&priv->lock, flags); @@ -419,6 +424,24 @@ } /* cypress_serial_control */ +static void cypress_set_dead(struct usb_serial_port *port) +{ + struct cypress_private *priv = usb_get_serial_port_data(port); + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + if (!priv->comm_is_ok) { + spin_unlock_irqrestore(&priv->lock, flags); + return; + } + priv->comm_is_ok = 0; + spin_unlock_irqrestore(&priv->lock, flags); + + err("cypress_m8 suspending failing port %d - interval might be too short", + port->number); +} + + /* given a baud mask, it will return integer baud on success */ static int mask_to_rate (unsigned mask) { @@ -472,13 +495,15 @@ static int generic_startup (struct usb_serial *serial) { struct cypress_private *priv; + struct usb_serial_port *port = serial->port[0]; - dbg("%s - port %d", __FUNCTION__, serial->port[0]->number); + dbg("%s - port %d", __FUNCTION__, port->number); priv = kzalloc(sizeof (struct cypress_private), GFP_KERNEL); if (!priv) return -ENOMEM; + priv->comm_is_ok = !0; spin_lock_init(&priv->lock); priv->buf = cypress_buf_alloc(CYPRESS_BUF_SIZE); if (priv->buf == NULL) { @@ -489,13 +514,24 @@ usb_reset_configuration (serial->dev); - interval = 1; priv->cmd_ctrl = 0; priv->line_control = 0; priv->termios_initialized = 0; priv->rx_flags = 0; priv->cbr_mask = B300; - usb_set_serial_port_data(serial->port[0], priv); + if (interval > 0) { + priv->write_urb_interval = interval; + priv->read_urb_interval = interval; + dbg("%s - port %d read & write intervals forced to %d", + __FUNCTION__,port->number,interval); + } else { + priv->write_urb_interval = port->interrupt_out_urb->interval; + priv->read_urb_interval = port->interrupt_in_urb->interval; + dbg("%s - port %d intervals: read=%d write=%d", + __FUNCTION__,port->number, + priv->read_urb_interval,priv->write_urb_interval); + } + usb_set_serial_port_data(port, priv); return 0; } @@ -585,6 +621,9 @@ dbg("%s - port %d", __FUNCTION__, port->number); + if (!priv->comm_is_ok) + return -EIO; + /* clear halts before open */ usb_clear_halt(serial->dev, 0x81); usb_clear_halt(serial->dev, 0x02); @@ -624,11 +663,12 @@ usb_fill_int_urb(port->interrupt_in_urb, serial->dev, usb_rcvintpipe(serial->dev, port->interrupt_in_endpointAddress), port->interrupt_in_urb->transfer_buffer, port->interrupt_in_urb->transfer_buffer_length, - cypress_read_int_callback, port, interval); + cypress_read_int_callback, port, priv->read_urb_interval); result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (result){ dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __FUNCTION__, result); + cypress_set_dead(port); } return result; @@ -733,6 +773,9 @@ struct cypress_private *priv = usb_get_serial_port_data(port); unsigned long flags; + if (!priv->comm_is_ok) + return; + dbg("%s - port %d", __FUNCTION__, port->number); dbg("%s - interrupt out size is %d", __FUNCTION__, port->interrupt_out_size); @@ -806,14 +849,16 @@ usb_serial_debug_data(debug, &port->dev, __FUNCTION__, port->interrupt_out_size, port->interrupt_out_urb->transfer_buffer); - port->interrupt_out_urb->transfer_buffer_length = actual_size; - port->interrupt_out_urb->dev = port->serial->dev; - port->interrupt_out_urb->interval = interval; + usb_fill_int_urb(port->interrupt_out_urb, port->serial->dev, + usb_sndintpipe(port->serial->dev, port->interrupt_out_endpointAddress), + port->interrupt_out_buffer, port->interrupt_out_size, + cypress_write_int_callback, port, priv->write_urb_interval); result = usb_submit_urb (port->interrupt_out_urb, GFP_ATOMIC); if (result) { dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __FUNCTION__, result); priv->write_urb_in_use = 0; + cypress_set_dead(port); } spin_lock_irqsave(&priv->lock, flags); @@ -1214,13 +1259,18 @@ priv->rx_flags = 0; spin_unlock_irqrestore(&priv->lock, flags); + if (!priv->comm_is_ok) + return; + if (actually_throttled) { port->interrupt_in_urb->dev = port->serial->dev; result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); - if (result) + if (result) { dev_err(&port->dev, "%s - failed submitting read urb, " "error %d\n", __FUNCTION__, result); + cypress_set_dead(port); + } } } @@ -1240,9 +1290,22 @@ dbg("%s - port %d", __FUNCTION__, port->number); - if (urb->status) { - dbg("%s - nonzero read status received: %d", __FUNCTION__, - urb->status); + switch (urb->status) { + case 0: /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* precursor to disconnect so just go away */ + return; + case -EPIPE: + usb_clear_halt(port->serial->dev,0x81); + break; + default: + /* something ugly is going on... */ + dev_err(&urb->dev->dev,"%s - unexpected nonzero read status received: %d\n", + __FUNCTION__,urb->status); + cypress_set_dead(port); return; } @@ -1343,18 +1406,20 @@ /* Continue trying to always read... unless the port has closed. */ - if (port->open_count > 0) { + if (port->open_count > 0 && priv->comm_is_ok) { usb_fill_int_urb(port->interrupt_in_urb, port->serial->dev, usb_rcvintpipe(port->serial->dev, port->interrupt_in_endpointAddress), port->interrupt_in_urb->transfer_buffer, port->interrupt_in_urb->transfer_buffer_length, - cypress_read_int_callback, port, interval); + cypress_read_int_callback, port, priv->read_urb_interval); result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); - if (result) + if (result) { dev_err(&urb->dev->dev, "%s - failed resubmitting " "read urb, error %d\n", __FUNCTION__, result); + cypress_set_dead(port); + } } return; @@ -1380,20 +1445,26 @@ dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); priv->write_urb_in_use = 0; return; - case -EPIPE: /* no break needed */ + case -EPIPE: /* no break needed; clear halt and resubmit */ + if (!priv->comm_is_ok) + break; usb_clear_halt(port->serial->dev, 0x02); - default: /* error in the urb, so we have to resubmit it */ - dbg("%s - Overflow in write", __FUNCTION__); dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); port->interrupt_out_urb->transfer_buffer_length = 1; port->interrupt_out_urb->dev = port->serial->dev; result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC); - if (result) - dev_err(&urb->dev->dev, "%s - failed resubmitting write urb, error %d\n", - __FUNCTION__, result); - else + if (!result) return; + dev_err(&urb->dev->dev, "%s - failed resubmitting write urb, error %d\n", + __FUNCTION__, result); + cypress_set_dead(port); + break; + default: + dev_err(&urb->dev->dev,"%s - unexpected nonzero write status received: %d\n", + __FUNCTION__,urb->status); + cypress_set_dead(port); + break; } priv->write_urb_in_use = 0;
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index c6115aa..1f7b725 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c
@@ -1101,25 +1101,29 @@ static DEVICE_ATTR(latency_timer, S_IWUSR | S_IRUGO, show_latency_timer, store_latency_timer); static DEVICE_ATTR(event_char, S_IWUSR, NULL, store_event_char); -static void create_sysfs_attrs(struct usb_serial *serial) -{ +static int create_sysfs_attrs(struct usb_serial *serial) +{ struct ftdi_private *priv; struct usb_device *udev; + int retval = 0; dbg("%s",__FUNCTION__); - + priv = usb_get_serial_port_data(serial->port[0]); udev = serial->dev; - + /* XXX I've no idea if the original SIO supports the event_char * sysfs parameter, so I'm playing it safe. */ if (priv->chip_type != SIO) { dbg("sysfs attributes for %s", ftdi_chip_name[priv->chip_type]); - device_create_file(&udev->dev, &dev_attr_event_char); - if (priv->chip_type == FT232BM || priv->chip_type == FT2232C) { - device_create_file(&udev->dev, &dev_attr_latency_timer); + retval = device_create_file(&udev->dev, &dev_attr_event_char); + if ((!retval) && + (priv->chip_type == FT232BM || priv->chip_type == FT2232C)) { + retval = device_create_file(&udev->dev, + &dev_attr_latency_timer); } } + return retval; } static void remove_sysfs_attrs(struct usb_serial *serial) @@ -1162,7 +1166,8 @@ struct usb_serial_port *port = serial->port[0]; struct ftdi_private *priv; struct ftdi_sio_quirk *quirk; - + int retval; + dbg("%s",__FUNCTION__); priv = kzalloc(sizeof(struct ftdi_private), GFP_KERNEL); @@ -1203,15 +1208,18 @@ usb_set_serial_port_data(serial->port[0], priv); ftdi_determine_type (serial->port[0]); - create_sysfs_attrs(serial); + retval = create_sysfs_attrs(serial); + if (retval) + dev_err(&serial->dev->dev, "Error creating sysfs files, " + "continuing\n"); /* Check for device requiring special set up. */ quirk = (struct ftdi_sio_quirk *)usb_get_serial_data(serial); if (quirk && quirk->setup) { quirk->setup(serial); } - - return (0); + + return 0; } /* ftdi_sio_attach */
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index 7278526..4b1196a 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c
@@ -1,7 +1,7 @@ /* * Garmin GPS driver * - * Copyright (C) 2004 Hermann Kneissel herkne@users.sourceforge.net + * Copyright (C) 2006 Hermann Kneissel herkne@users.sourceforge.net * * The latest version of the driver can be found at * http://sourceforge.net/projects/garmin-gps/ @@ -37,6 +37,8 @@ #include <linux/usb.h> #include <linux/usb/serial.h> +#include <linux/version.h> + /* the mode to be set when the port ist opened */ static int initial_mode = 1; @@ -50,7 +52,7 @@ */ #define VERSION_MAJOR 0 -#define VERSION_MINOR 23 +#define VERSION_MINOR 28 #define _STR(s) #s #define _DRIVER_VERSION(a,b) "v" _STR(a) "." _STR(b) @@ -164,7 +166,8 @@ #define FLAGS_SESSION_REPLY1_SEEN 0x0080 #define FLAGS_SESSION_REPLY2_SEEN 0x0040 #define FLAGS_BULK_IN_ACTIVE 0x0020 -#define FLAGS_THROTTLED 0x0010 +#define FLAGS_BULK_IN_RESTART 0x0010 +#define FLAGS_THROTTLED 0x0008 #define CLEAR_HALT_REQUIRED 0x0001 #define FLAGS_QUEUING 0x0100 @@ -224,7 +227,7 @@ .probe = usb_serial_probe, .disconnect = usb_serial_disconnect, .id_table = id_table, - .no_dynamic_id = 1, + .no_dynamic_id = 1, }; @@ -270,7 +273,7 @@ static void send_to_tty(struct usb_serial_port *port, - char *data, unsigned int actual_length) + char *data, unsigned int actual_length) { struct tty_struct *tty = port->tty; @@ -294,15 +297,15 @@ * queue a received (usb-)packet for later processing */ static int pkt_add(struct garmin_data * garmin_data_p, - unsigned char *data, unsigned int data_length) + unsigned char *data, unsigned int data_length) { + int state = 0; int result = 0; unsigned long flags; struct garmin_packet *pkt; /* process only packets containg data ... */ if (data_length) { - garmin_data_p->flags |= FLAGS_QUEUING; pkt = kmalloc(sizeof(struct garmin_packet)+data_length, GFP_ATOMIC); if (pkt == NULL) { @@ -313,14 +316,16 @@ memcpy(pkt->data, data, data_length); spin_lock_irqsave(&garmin_data_p->lock, flags); + garmin_data_p->flags |= FLAGS_QUEUING; result = list_empty(&garmin_data_p->pktlist); pkt->seq = garmin_data_p->seq_counter++; list_add_tail(&pkt->list, &garmin_data_p->pktlist); + state = garmin_data_p->state; spin_unlock_irqrestore(&garmin_data_p->lock, flags); /* in serial mode, if someone is waiting for data from the device, iconvert and send the next packet to tty. */ - if (result && (garmin_data_p->state == STATE_GSP_WAIT_DATA)) { + if (result && (state == STATE_GSP_WAIT_DATA)) { gsp_next_packet(garmin_data_p); } } @@ -370,9 +375,9 @@ static int gsp_send_ack(struct garmin_data * garmin_data_p, __u8 pkt_id) { __u8 pkt[10]; - __u8 cksum = 0; - __u8 *ptr = pkt; - unsigned l = 0; + __u8 cksum = 0; + __u8 *ptr = pkt; + unsigned l = 0; dbg("%s - pkt-id: 0x%X.", __FUNCTION__, 0xFF & pkt_id); @@ -416,7 +421,7 @@ static int gsp_rec_packet(struct garmin_data * garmin_data_p, int count) { const __u8* recpkt = garmin_data_p->inbuffer+GSP_INITIAL_OFFSET; - __le32 *usbdata = (__le32 *) garmin_data_p->inbuffer; + __le32 *usbdata = (__le32 *) garmin_data_p->inbuffer; int cksum = 0; int n = 0; @@ -447,11 +452,11 @@ n++; } - if ((0xff & (cksum + *recpkt)) != 0) { - dbg("%s - invalid checksum, expected %02x, got %02x", - __FUNCTION__, 0xff & -cksum, 0xff & *recpkt); - return -EINVPKT; - } + if ((0xff & (cksum + *recpkt)) != 0) { + dbg("%s - invalid checksum, expected %02x, got %02x", + __FUNCTION__, 0xff & -cksum, 0xff & *recpkt); + return -EINVPKT; + } usbdata[0] = __cpu_to_le32(GARMIN_LAYERID_APPL); usbdata[1] = __cpu_to_le32(pktid); @@ -491,20 +496,28 @@ */ static int gsp_receive(struct garmin_data * garmin_data_p, - const unsigned char *buf, int count) + const unsigned char *buf, int count) { + unsigned long flags; int offs = 0; int ack_or_nak_seen = 0; int i = 0; - __u8 *dest = garmin_data_p->inbuffer; - int size = garmin_data_p->insize; + __u8 *dest; + int size; // dleSeen: set if last byte read was a DLE - int dleSeen = garmin_data_p->flags & FLAGS_GSP_DLESEEN; + int dleSeen; // skip: if set, skip incoming data until possible start of // new packet - int skip = garmin_data_p->flags & FLAGS_GSP_SKIP; + int skip; __u8 data; + spin_lock_irqsave(&garmin_data_p->lock, flags); + dest = garmin_data_p->inbuffer; + size = garmin_data_p->insize; + dleSeen = garmin_data_p->flags & FLAGS_GSP_DLESEEN; + skip = garmin_data_p->flags & FLAGS_GSP_SKIP; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); + dbg("%s - dle=%d skip=%d size=%d count=%d", __FUNCTION__, dleSeen, skip, size, count); @@ -572,6 +585,8 @@ } } + spin_lock_irqsave(&garmin_data_p->lock, flags); + garmin_data_p->insize = size; // copy flags back to structure @@ -587,6 +602,11 @@ if (ack_or_nak_seen) { garmin_data_p->state = STATE_GSP_WAIT_DATA; + } + + spin_unlock_irqrestore(&garmin_data_p->lock, flags); + + if (ack_or_nak_seen) { gsp_next_packet(garmin_data_p); } @@ -676,7 +696,7 @@ src = garmin_data_p->outbuffer+GARMIN_PKTHDR_LENGTH; if (k > (GARMIN_PKTHDR_LENGTH-2)) { /* can't add stuffing DLEs in place, move data to end - of buffer ... */ + of buffer ... */ dst = garmin_data_p->outbuffer+GPS_OUT_BUFSIZ-datalen; memcpy(dst, src, datalen); src = dst; @@ -755,8 +775,9 @@ * or even incomplete packets */ static int nat_receive(struct garmin_data * garmin_data_p, - const unsigned char *buf, int count) + const unsigned char *buf, int count) { + unsigned long flags; __u8 * dest; int offs = 0; int result = count; @@ -803,7 +824,9 @@ /* if this was an abort-transfer command, flush all queued data. */ if (isAbortTrfCmnd(garmin_data_p->inbuffer)) { + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags |= FLAGS_DROP_DATA; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); pkt_clear(garmin_data_p); } } @@ -839,12 +862,15 @@ static int process_resetdev_request(struct usb_serial_port *port) { + unsigned long flags; int status; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags &= ~(CLEAR_HALT_REQUIRED); garmin_data_p->state = STATE_RESET; garmin_data_p->serial_num = 0; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); usb_kill_urb (port->interrupt_in_urb); dbg("%s - usb_reset_device", __FUNCTION__ ); @@ -862,6 +888,7 @@ */ static int garmin_clear(struct garmin_data * garmin_data_p) { + unsigned long flags; int status = 0; struct usb_serial_port *port = garmin_data_p->port; @@ -875,8 +902,10 @@ /* flush all queued data */ pkt_clear(garmin_data_p); + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->insize = 0; garmin_data_p->outsize = 0; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); return status; } @@ -888,6 +917,7 @@ static int garmin_init_session(struct usb_serial_port *port) { + unsigned long flags; struct usb_serial *serial = port->serial; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); int status = 0; @@ -913,7 +943,9 @@ if (status >= 0) { + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->ignorePkts++; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); /* not needed, but the win32 driver does it too ... */ status = garmin_write_bulk(port, @@ -921,7 +953,9 @@ sizeof(GARMIN_START_SESSION_REQ2)); if (status >= 0) { status = 0; + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->ignorePkts++; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); } } } @@ -935,6 +969,7 @@ static int garmin_open (struct usb_serial_port *port, struct file *filp) { + unsigned long flags; int status = 0; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); @@ -948,9 +983,11 @@ if (port->tty) port->tty->low_latency = 1; + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->mode = initial_mode; garmin_data_p->count = 0; garmin_data_p->flags = 0; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); /* shutdown any bulk reads that might be going on */ usb_kill_urb (port->write_urb); @@ -996,6 +1033,7 @@ static void garmin_write_bulk_callback (struct urb *urb, struct pt_regs *regs) { + unsigned long flags; struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); @@ -1007,7 +1045,9 @@ if (urb->status) { dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags |= CLEAR_HALT_REQUIRED; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); } usb_serial_port_softint(port); @@ -1015,8 +1055,9 @@ static int garmin_write_bulk (struct usb_serial_port *port, - const unsigned char *buf, int count) + const unsigned char *buf, int count) { + unsigned long flags; struct usb_serial *serial = port->serial; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); struct urb *urb; @@ -1026,7 +1067,9 @@ dbg("%s - port %d, state %d", __FUNCTION__, port->number, garmin_data_p->state); + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags &= ~FLAGS_DROP_DATA; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); buffer = kmalloc (count, GFP_ATOMIC); if (!buffer) { @@ -1053,7 +1096,9 @@ urb->transfer_flags |= URB_ZERO_PACKET; if (GARMIN_LAYERID_APPL == getLayerId(buffer)) { + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags |= FLAGS_APP_REQ_SEEN; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); if (garmin_data_p->mode == MODE_GARMIN_SERIAL) { pkt_clear(garmin_data_p); garmin_data_p->state = STATE_GSP_WAIT_DATA; @@ -1087,8 +1132,9 @@ static int garmin_write (struct usb_serial_port *port, - const unsigned char *buf, int count) + const unsigned char *buf, int count) { + unsigned long flags; int pktid, pktsiz, len; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); __le32 *privpkt = (__le32 *)garmin_data_p->privpkt; @@ -1139,7 +1185,9 @@ break; case PRIV_PKTID_RESET_REQ: + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags |= FLAGS_APP_REQ_SEEN; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); break; case PRIV_PKTID_SET_DEF_MODE: @@ -1155,6 +1203,8 @@ } } + garmin_data_p->ignorePkts = 0; + if (garmin_data_p->mode == MODE_GARMIN_SERIAL) { return gsp_receive(garmin_data_p, buf, count); } else { /* MODE_NATIVE */ @@ -1177,10 +1227,10 @@ { /* * Report back the number of bytes currently in our input buffer. - * Will this lock up the driver - the buffer contains an incomplete - * package which will not be written to the device until it - * has been completed ? - */ + * Will this lock up the driver - the buffer contains an incomplete + * package which will not be written to the device until it + * has been completed ? + */ //struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); //return garmin_data_p->insize; return 0; @@ -1190,6 +1240,8 @@ static void garmin_read_process(struct garmin_data * garmin_data_p, unsigned char *data, unsigned data_length) { + unsigned long flags; + if (garmin_data_p->flags & FLAGS_DROP_DATA) { /* abort-transfer cmd is actice */ dbg("%s - pkt dropped", __FUNCTION__); @@ -1200,11 +1252,14 @@ if a reset is required or not when closing the device */ if (0 == memcmp(data, GARMIN_APP_LAYER_REPLY, - sizeof(GARMIN_APP_LAYER_REPLY))) + sizeof(GARMIN_APP_LAYER_REPLY))) { + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags |= FLAGS_APP_RESP_SEEN; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); + } /* if throttling is active or postprecessing is required - put the received data in th input queue, otherwise + put the received data in the input queue, otherwise send it directly to the tty port */ if (garmin_data_p->flags & FLAGS_QUEUING) { pkt_add(garmin_data_p, data, data_length); @@ -1221,6 +1276,7 @@ static void garmin_read_bulk_callback (struct urb *urb, struct pt_regs *regs) { + unsigned long flags; struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct usb_serial *serial = port->serial; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); @@ -1245,19 +1301,30 @@ garmin_read_process(garmin_data_p, data, urb->actual_length); - /* Continue trying to read until nothing more is received */ - if (urb->actual_length > 0) { - usb_fill_bulk_urb (port->read_urb, serial->dev, - usb_rcvbulkpipe (serial->dev, - port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, - port->read_urb->transfer_buffer_length, - garmin_read_bulk_callback, port); + if (urb->actual_length == 0 && + 0 != (garmin_data_p->flags & FLAGS_BULK_IN_RESTART)) { + spin_lock_irqsave(&garmin_data_p->lock, flags); + garmin_data_p->flags &= ~FLAGS_BULK_IN_RESTART; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); status = usb_submit_urb(port->read_urb, GFP_ATOMIC); if (status) dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, status); + } else if (urb->actual_length > 0) { + /* Continue trying to read until nothing more is received */ + if (0 == (garmin_data_p->flags & FLAGS_THROTTLED)) { + status = usb_submit_urb(port->read_urb, GFP_ATOMIC); + if (status) + dev_err(&port->dev, + "%s - failed resubmitting read urb, error %d\n", + __FUNCTION__, status); + } + } else { + dbg("%s - end of bulk data", __FUNCTION__); + spin_lock_irqsave(&garmin_data_p->lock, flags); + garmin_data_p->flags &= ~FLAGS_BULK_IN_ACTIVE; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); } return; } @@ -1265,6 +1332,7 @@ static void garmin_read_int_callback (struct urb *urb, struct pt_regs *regs) { + unsigned long flags; int status; struct usb_serial_port *port = (struct usb_serial_port *)urb->context; struct usb_serial *serial = port->serial; @@ -1297,25 +1365,41 @@ dbg("%s - bulk data available.", __FUNCTION__); - /* bulk data available */ - usb_fill_bulk_urb (port->read_urb, serial->dev, - usb_rcvbulkpipe (serial->dev, - port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, - port->read_urb->transfer_buffer_length, - garmin_read_bulk_callback, port); - status = usb_submit_urb(port->read_urb, GFP_KERNEL); - if (status) { - dev_err(&port->dev, - "%s - failed submitting read urb, error %d\n", - __FUNCTION__, status); + if (0 == (garmin_data_p->flags & FLAGS_BULK_IN_ACTIVE)) { + + /* bulk data available */ + usb_fill_bulk_urb (port->read_urb, serial->dev, + usb_rcvbulkpipe (serial->dev, + port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, + port->read_urb->transfer_buffer_length, + garmin_read_bulk_callback, port); + status = usb_submit_urb(port->read_urb, GFP_ATOMIC); + if (status) { + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", + __FUNCTION__, status); + } else { + spin_lock_irqsave(&garmin_data_p->lock, flags); + garmin_data_p->flags |= FLAGS_BULK_IN_ACTIVE; + /* do not send this packet to the user */ + garmin_data_p->ignorePkts = 1; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); + } + } else { + /* bulk-in transfer still active */ + spin_lock_irqsave(&garmin_data_p->lock, flags); + garmin_data_p->flags |= FLAGS_BULK_IN_RESTART; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); } } else if (urb->actual_length == (4+sizeof(GARMIN_START_SESSION_REPLY)) && 0 == memcmp(data, GARMIN_START_SESSION_REPLY, sizeof(GARMIN_START_SESSION_REPLY))) { + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags |= FLAGS_SESSION_REPLY1_SEEN; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); /* save the serial number */ garmin_data_p->serial_num @@ -1330,7 +1414,9 @@ ignore it. */ dbg("%s - pkt ignored (%d)", __FUNCTION__, garmin_data_p->ignorePkts); + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->ignorePkts--; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); } else { garmin_read_process(garmin_data_p, data, urb->actual_length); } @@ -1351,18 +1437,20 @@ */ static int garmin_flush_queue(struct garmin_data * garmin_data_p) { + unsigned long flags; struct garmin_packet *pkt; if ((garmin_data_p->flags & FLAGS_THROTTLED) == 0) { pkt = pkt_pop(garmin_data_p); if (pkt != NULL) { - send_to_tty(garmin_data_p->port, pkt->data, pkt->size); kfree(pkt); mod_timer(&garmin_data_p->timer, (1)+jiffies); } else { + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags &= ~FLAGS_QUEUING; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); } } return 0; @@ -1371,26 +1459,41 @@ static void garmin_throttle (struct usb_serial_port *port) { + unsigned long flags; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); dbg("%s - port %d", __FUNCTION__, port->number); /* set flag, data received will be put into a queue for later processing */ + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags |= FLAGS_QUEUING|FLAGS_THROTTLED; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); } static void garmin_unthrottle (struct usb_serial_port *port) { + unsigned long flags; struct garmin_data * garmin_data_p = usb_get_serial_port_data(port); + int status; dbg("%s - port %d", __FUNCTION__, port->number); + spin_lock_irqsave(&garmin_data_p->lock, flags); garmin_data_p->flags &= ~FLAGS_THROTTLED; + spin_unlock_irqrestore(&garmin_data_p->lock, flags); /* in native mode send queued data to tty, in serial mode nothing needs to be done here */ if (garmin_data_p->mode == MODE_NATIVE) garmin_flush_queue(garmin_data_p); + + if (0 != (garmin_data_p->flags & FLAGS_BULK_IN_ACTIVE)) { + status = usb_submit_urb(port->read_urb, GFP_ATOMIC); + if (status) + dev_err(&port->dev, + "%s - failed resubmitting read urb, error %d\n", + __FUNCTION__, status); + } } @@ -1420,11 +1523,12 @@ dbg("%s", __FUNCTION__); - garmin_data_p = kzalloc(sizeof(struct garmin_data), GFP_KERNEL); + garmin_data_p = kmalloc (sizeof(struct garmin_data), GFP_KERNEL); if (garmin_data_p == NULL) { dev_err(&port->dev, "%s - Out of memory\n", __FUNCTION__); return -ENOMEM; } + memset (garmin_data_p, 0, sizeof(struct garmin_data)); init_timer(&garmin_data_p->timer); spin_lock_init(&garmin_data_p->lock); INIT_LIST_HEAD(&garmin_data_p->pktlist); @@ -1459,10 +1563,10 @@ /* All of the device info needed */ static struct usb_serial_driver garmin_device = { .driver = { - .owner = THIS_MODULE, - .name = "garmin_gps", + .owner = THIS_MODULE, + .name = "garmin_gps", }, - .description = "Garmin GPS usb/tty", + .description = "Garmin GPS usb/tty", .id_table = id_table, .num_interrupt_in = 1, .num_bulk_in = 1, @@ -1483,6 +1587,7 @@ }; + static int __init garmin_init (void) { int retval;
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 9840bad..bfc6998 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c
@@ -652,11 +652,6 @@ port->bulk_out_size = port->write_urb->transfer_buffer_length = URBDATA_SIZE; msleep(1000*initial_wait); - /* Start reading from the device */ - usb_fill_bulk_urb(port->read_urb, serial->dev, - usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length, - ipaq_read_bulk_callback, port); /* * Send out control message observed in win98 sniffs. Not sure what @@ -670,18 +665,31 @@ result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), 0x22, 0x21, 0x1, 0, NULL, 0, 100); - if (result == 0) { - result = usb_submit_urb(port->read_urb, GFP_KERNEL); - if (result) { - err("%s - failed submitting read urb, error %d", __FUNCTION__, result); - goto error; - } - return 0; - } + if (!result) + break; + msleep(1000); } - err("%s - failed doing control urb, error %d", __FUNCTION__, result); - goto error; + + if (!retries && result) { + err("%s - failed doing control urb, error %d", __FUNCTION__, + result); + goto error; + } + + /* Start reading from the device */ + usb_fill_bulk_urb(port->read_urb, serial->dev, + usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress), + port->read_urb->transfer_buffer, port->read_urb->transfer_buffer_length, + ipaq_read_bulk_callback, port); + + result = usb_submit_urb(port->read_urb, GFP_KERNEL); + if (result) { + err("%s - failed submitting read urb, error %d", __FUNCTION__, result); + goto error; + } + + return 0; enomem: result = -ENOMEM;
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c new file mode 100644 index 0000000..95bf571 --- /dev/null +++ b/drivers/usb/serial/mos7840.c
@@ -0,0 +1,2962 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Clean ups from Moschip version and a few ioctl implementations by: + * Paul B Schroeder <pschroeder "at" uplogix "dot" com> + * + * Originally based on drivers/usb/serial/io_edgeport.c which is: + * Copyright (C) 2000 Inside Out Networks, All rights reserved. + * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> + * + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/tty.h> +#include <linux/tty_driver.h> +#include <linux/tty_flip.h> +#include <linux/module.h> +#include <linux/serial.h> +#include <linux/usb.h> +#include <linux/usb/serial.h> +#include <asm/uaccess.h> + +/* + * Version Information + */ +#define DRIVER_VERSION "1.3.1" +#define DRIVER_DESC "Moschip 7840/7820 USB Serial Driver" + +/* + * 16C50 UART register defines + */ + +#define LCR_BITS_5 0x00 /* 5 bits/char */ +#define LCR_BITS_6 0x01 /* 6 bits/char */ +#define LCR_BITS_7 0x02 /* 7 bits/char */ +#define LCR_BITS_8 0x03 /* 8 bits/char */ +#define LCR_BITS_MASK 0x03 /* Mask for bits/char field */ + +#define LCR_STOP_1 0x00 /* 1 stop bit */ +#define LCR_STOP_1_5 0x04 /* 1.5 stop bits (if 5 bits/char) */ +#define LCR_STOP_2 0x04 /* 2 stop bits (if 6-8 bits/char) */ +#define LCR_STOP_MASK 0x04 /* Mask for stop bits field */ + +#define LCR_PAR_NONE 0x00 /* No parity */ +#define LCR_PAR_ODD 0x08 /* Odd parity */ +#define LCR_PAR_EVEN 0x18 /* Even parity */ +#define LCR_PAR_MARK 0x28 /* Force parity bit to 1 */ +#define LCR_PAR_SPACE 0x38 /* Force parity bit to 0 */ +#define LCR_PAR_MASK 0x38 /* Mask for parity field */ + +#define LCR_SET_BREAK 0x40 /* Set Break condition */ +#define LCR_DL_ENABLE 0x80 /* Enable access to divisor latch */ + +#define MCR_DTR 0x01 /* Assert DTR */ +#define MCR_RTS 0x02 /* Assert RTS */ +#define MCR_OUT1 0x04 /* Loopback only: Sets state of RI */ +#define MCR_MASTER_IE 0x08 /* Enable interrupt outputs */ +#define MCR_LOOPBACK 0x10 /* Set internal (digital) loopback mode */ +#define MCR_XON_ANY 0x20 /* Enable any char to exit XOFF mode */ + +#define MOS7840_MSR_CTS 0x10 /* Current state of CTS */ +#define MOS7840_MSR_DSR 0x20 /* Current state of DSR */ +#define MOS7840_MSR_RI 0x40 /* Current state of RI */ +#define MOS7840_MSR_CD 0x80 /* Current state of CD */ + +/* + * Defines used for sending commands to port + */ + +#define WAIT_FOR_EVER (HZ * 0 ) /* timeout urb is wait for ever */ +#define MOS_WDR_TIMEOUT (HZ * 5 ) /* default urb timeout */ + +#define MOS_PORT1 0x0200 +#define MOS_PORT2 0x0300 +#define MOS_VENREG 0x0000 +#define MOS_MAX_PORT 0x02 +#define MOS_WRITE 0x0E +#define MOS_READ 0x0D + +/* Requests */ +#define MCS_RD_RTYPE 0xC0 +#define MCS_WR_RTYPE 0x40 +#define MCS_RDREQ 0x0D +#define MCS_WRREQ 0x0E +#define MCS_CTRL_TIMEOUT 500 +#define VENDOR_READ_LENGTH (0x01) + +#define MAX_NAME_LEN 64 + +#define ZLP_REG1 0x3A //Zero_Flag_Reg1 58 +#define ZLP_REG5 0x3E //Zero_Flag_Reg5 62 + +/* For higher baud Rates use TIOCEXBAUD */ +#define TIOCEXBAUD 0x5462 + +/* vendor id and device id defines */ + +#define USB_VENDOR_ID_MOSCHIP 0x9710 +#define MOSCHIP_DEVICE_ID_7840 0x7840 +#define MOSCHIP_DEVICE_ID_7820 0x7820 + +/* Interrupt Rotinue Defines */ + +#define SERIAL_IIR_RLS 0x06 +#define SERIAL_IIR_MS 0x00 + +/* + * Emulation of the bit mask on the LINE STATUS REGISTER. + */ +#define SERIAL_LSR_DR 0x0001 +#define SERIAL_LSR_OE 0x0002 +#define SERIAL_LSR_PE 0x0004 +#define SERIAL_LSR_FE 0x0008 +#define SERIAL_LSR_BI 0x0010 + +#define MOS_MSR_DELTA_CTS 0x10 +#define MOS_MSR_DELTA_DSR 0x20 +#define MOS_MSR_DELTA_RI 0x40 +#define MOS_MSR_DELTA_CD 0x80 + +// Serial Port register Address +#define INTERRUPT_ENABLE_REGISTER ((__u16)(0x01)) +#define FIFO_CONTROL_REGISTER ((__u16)(0x02)) +#define LINE_CONTROL_REGISTER ((__u16)(0x03)) +#define MODEM_CONTROL_REGISTER ((__u16)(0x04)) +#define LINE_STATUS_REGISTER ((__u16)(0x05)) +#define MODEM_STATUS_REGISTER ((__u16)(0x06)) +#define SCRATCH_PAD_REGISTER ((__u16)(0x07)) +#define DIVISOR_LATCH_LSB ((__u16)(0x00)) +#define DIVISOR_LATCH_MSB ((__u16)(0x01)) + +#define CLK_MULTI_REGISTER ((__u16)(0x02)) +#define CLK_START_VALUE_REGISTER ((__u16)(0x03)) + +#define SERIAL_LCR_DLAB ((__u16)(0x0080)) + +/* + * URB POOL related defines + */ +#define NUM_URBS 16 /* URB Count */ +#define URB_TRANSFER_BUFFER_SIZE 32 /* URB Size */ + + +static struct usb_device_id moschip_port_id_table[] = { + {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)}, + {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)}, + {} /* terminating entry */ +}; + +static __devinitdata struct usb_device_id moschip_id_table_combined[] = { + {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7840)}, + {USB_DEVICE(USB_VENDOR_ID_MOSCHIP, MOSCHIP_DEVICE_ID_7820)}, + {} /* terminating entry */ +}; + +MODULE_DEVICE_TABLE(usb, moschip_id_table_combined); + +/* This structure holds all of the local port information */ + +struct moschip_port { + int port_num; /*Actual port number in the device(1,2,etc) */ + struct urb *write_urb; /* write URB for this port */ + struct urb *read_urb; /* read URB for this port */ + __u8 shadowLCR; /* last LCR value received */ + __u8 shadowMCR; /* last MCR value received */ + char open; + wait_queue_head_t wait_chase; /* for handling sleeping while waiting for chase to finish */ + wait_queue_head_t delta_msr_wait; /* for handling sleeping while waiting for msr change to happen */ + int delta_msr_cond; + struct async_icount icount; + struct usb_serial_port *port; /* loop back to the owner of this object */ + + /*Offsets */ + __u8 SpRegOffset; + __u8 ControlRegOffset; + __u8 DcrRegOffset; + //for processing control URBS in interrupt context + struct urb *control_urb; + char *ctrl_buf; + int MsrLsr; + + struct urb *write_urb_pool[NUM_URBS]; +}; + + +static int debug; +static int mos7840_num_ports; //this says the number of ports in the device +static int mos7840_num_open_ports; + + +/* + * mos7840_set_reg_sync + * To set the Control register by calling usb_fill_control_urb function + * by passing usb_sndctrlpipe function as parameter. + */ + +static int mos7840_set_reg_sync(struct usb_serial_port *port, __u16 reg, + __u16 val) +{ + struct usb_device *dev = port->serial->dev; + val = val & 0x00ff; + dbg("mos7840_set_reg_sync offset is %x, value %x\n", reg, val); + + return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), MCS_WRREQ, + MCS_WR_RTYPE, val, reg, NULL, 0, + MOS_WDR_TIMEOUT); +} + +/* + * mos7840_get_reg_sync + * To set the Uart register by calling usb_fill_control_urb function by + * passing usb_rcvctrlpipe function as parameter. + */ + +static int mos7840_get_reg_sync(struct usb_serial_port *port, __u16 reg, + __u16 * val) +{ + struct usb_device *dev = port->serial->dev; + int ret = 0; + + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ, + MCS_RD_RTYPE, 0, reg, val, VENDOR_READ_LENGTH, + MOS_WDR_TIMEOUT); + dbg("mos7840_get_reg_sync offset is %x, return val %x\n", reg, *val); + *val = (*val) & 0x00ff; + return ret; +} + +/* + * mos7840_set_uart_reg + * To set the Uart register by calling usb_fill_control_urb function by + * passing usb_sndctrlpipe function as parameter. + */ + +static int mos7840_set_uart_reg(struct usb_serial_port *port, __u16 reg, + __u16 val) +{ + + struct usb_device *dev = port->serial->dev; + val = val & 0x00ff; + // For the UART control registers, the application number need to be Or'ed + if (mos7840_num_ports == 4) { + val |= + (((__u16) port->number - (__u16) (port->serial->minor)) + + 1) << 8; + dbg("mos7840_set_uart_reg application number is %x\n", val); + } else { + if (((__u16) port->number - (__u16) (port->serial->minor)) == 0) { + val |= + (((__u16) port->number - + (__u16) (port->serial->minor)) + 1) << 8; + dbg("mos7840_set_uart_reg application number is %x\n", + val); + } else { + val |= + (((__u16) port->number - + (__u16) (port->serial->minor)) + 2) << 8; + dbg("mos7840_set_uart_reg application number is %x\n", + val); + } + } + return usb_control_msg(dev, usb_sndctrlpipe(dev, 0), MCS_WRREQ, + MCS_WR_RTYPE, val, reg, NULL, 0, + MOS_WDR_TIMEOUT); + +} + +/* + * mos7840_get_uart_reg + * To set the Control register by calling usb_fill_control_urb function + * by passing usb_rcvctrlpipe function as parameter. + */ +static int mos7840_get_uart_reg(struct usb_serial_port *port, __u16 reg, + __u16 * val) +{ + struct usb_device *dev = port->serial->dev; + int ret = 0; + __u16 Wval; + + //dbg("application number is %4x \n",(((__u16)port->number - (__u16)(port->serial->minor))+1)<<8); + /*Wval is same as application number */ + if (mos7840_num_ports == 4) { + Wval = + (((__u16) port->number - (__u16) (port->serial->minor)) + + 1) << 8; + dbg("mos7840_get_uart_reg application number is %x\n", Wval); + } else { + if (((__u16) port->number - (__u16) (port->serial->minor)) == 0) { + Wval = + (((__u16) port->number - + (__u16) (port->serial->minor)) + 1) << 8; + dbg("mos7840_get_uart_reg application number is %x\n", + Wval); + } else { + Wval = + (((__u16) port->number - + (__u16) (port->serial->minor)) + 2) << 8; + dbg("mos7840_get_uart_reg application number is %x\n", + Wval); + } + } + ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), MCS_RDREQ, + MCS_RD_RTYPE, Wval, reg, val, VENDOR_READ_LENGTH, + MOS_WDR_TIMEOUT); + *val = (*val) & 0x00ff; + return ret; +} + +static void mos7840_dump_serial_port(struct moschip_port *mos7840_port) +{ + + dbg("***************************************\n"); + dbg("SpRegOffset is %2x\n", mos7840_port->SpRegOffset); + dbg("ControlRegOffset is %2x \n", mos7840_port->ControlRegOffset); + dbg("DCRRegOffset is %2x \n", mos7840_port->DcrRegOffset); + dbg("***************************************\n"); + +} + +/************************************************************************/ +/************************************************************************/ +/* I N T E R F A C E F U N C T I O N S */ +/* I N T E R F A C E F U N C T I O N S */ +/************************************************************************/ +/************************************************************************/ + +static inline void mos7840_set_port_private(struct usb_serial_port *port, + struct moschip_port *data) +{ + usb_set_serial_port_data(port, (void *)data); +} + +static inline struct moschip_port *mos7840_get_port_private(struct + usb_serial_port + *port) +{ + return (struct moschip_port *)usb_get_serial_port_data(port); +} + +static int mos7840_handle_new_msr(struct moschip_port *port, __u8 new_msr) +{ + struct moschip_port *mos7840_port; + struct async_icount *icount; + mos7840_port = port; + icount = &mos7840_port->icount; + if (new_msr & + (MOS_MSR_DELTA_CTS | MOS_MSR_DELTA_DSR | MOS_MSR_DELTA_RI | + MOS_MSR_DELTA_CD)) { + icount = &mos7840_port->icount; + + /* update input line counters */ + if (new_msr & MOS_MSR_DELTA_CTS) { + icount->cts++; + } + if (new_msr & MOS_MSR_DELTA_DSR) { + icount->dsr++; + } + if (new_msr & MOS_MSR_DELTA_CD) { + icount->dcd++; + } + if (new_msr & MOS_MSR_DELTA_RI) { + icount->rng++; + } + } + + return 0; +} + +static int mos7840_handle_new_lsr(struct moschip_port *port, __u8 new_lsr) +{ + struct async_icount *icount; + + dbg("%s - %02x", __FUNCTION__, new_lsr); + + if (new_lsr & SERIAL_LSR_BI) { + // + // Parity and Framing errors only count if they + // occur exclusive of a break being + // received. + // + new_lsr &= (__u8) (SERIAL_LSR_OE | SERIAL_LSR_BI); + } + + /* update input line counters */ + icount = &port->icount; + if (new_lsr & SERIAL_LSR_BI) { + icount->brk++; + } + if (new_lsr & SERIAL_LSR_OE) { + icount->overrun++; + } + if (new_lsr & SERIAL_LSR_PE) { + icount->parity++; + } + if (new_lsr & SERIAL_LSR_FE) { + icount->frame++; + } + + return 0; +} + +/************************************************************************/ +/************************************************************************/ +/* U S B C A L L B A C K F U N C T I O N S */ +/* U S B C A L L B A C K F U N C T I O N S */ +/************************************************************************/ +/************************************************************************/ + +static void mos7840_control_callback(struct urb *urb, struct pt_regs *regs) +{ + unsigned char *data; + struct moschip_port *mos7840_port; + __u8 regval = 0x0; + + if (!urb) { + dbg("%s", "Invalid Pointer !!!!:\n"); + return; + } + + switch (urb->status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* this urb is terminated, clean up */ + dbg("%s - urb shutting down with status: %d", __FUNCTION__, + urb->status); + return; + default: + dbg("%s - nonzero urb status received: %d", __FUNCTION__, + urb->status); + goto exit; + } + + mos7840_port = (struct moschip_port *)urb->context; + + dbg("%s urb buffer size is %d\n", __FUNCTION__, urb->actual_length); + dbg("%s mos7840_port->MsrLsr is %d port %d\n", __FUNCTION__, + mos7840_port->MsrLsr, mos7840_port->port_num); + data = urb->transfer_buffer; + regval = (__u8) data[0]; + dbg("%s data is %x\n", __FUNCTION__, regval); + if (mos7840_port->MsrLsr == 0) + mos7840_handle_new_msr(mos7840_port, regval); + else if (mos7840_port->MsrLsr == 1) + mos7840_handle_new_lsr(mos7840_port, regval); + + exit: + return; +} + +static int mos7840_get_reg(struct moschip_port *mcs, __u16 Wval, __u16 reg, + __u16 * val) +{ + struct usb_device *dev = mcs->port->serial->dev; + struct usb_ctrlrequest *dr = NULL; + unsigned char *buffer = NULL; + int ret = 0; + buffer = (__u8 *) mcs->ctrl_buf; + +// dr=(struct usb_ctrlrequest *)(buffer); + dr = (void *)(buffer + 2); + dr->bRequestType = MCS_RD_RTYPE; + dr->bRequest = MCS_RDREQ; + dr->wValue = cpu_to_le16(Wval); //0; + dr->wIndex = cpu_to_le16(reg); + dr->wLength = cpu_to_le16(2); + + usb_fill_control_urb(mcs->control_urb, dev, usb_rcvctrlpipe(dev, 0), + (unsigned char *)dr, buffer, 2, + mos7840_control_callback, mcs); + mcs->control_urb->transfer_buffer_length = 2; + ret = usb_submit_urb(mcs->control_urb, GFP_ATOMIC); + return ret; +} + +/***************************************************************************** + * mos7840_interrupt_callback + * this is the callback function for when we have received data on the + * interrupt endpoint. + *****************************************************************************/ + +static void mos7840_interrupt_callback(struct urb *urb, struct pt_regs *regs) +{ + int result; + int length; + struct moschip_port *mos7840_port; + struct usb_serial *serial; + __u16 Data; + unsigned char *data; + __u8 sp[5], st; + int i; + __u16 wval; + + dbg("%s", " : Entering\n"); + if (!urb) { + dbg("%s", "Invalid Pointer !!!!:\n"); + return; + } + + switch (urb->status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + /* this urb is terminated, clean up */ + dbg("%s - urb shutting down with status: %d", __FUNCTION__, + urb->status); + return; + default: + dbg("%s - nonzero urb status received: %d", __FUNCTION__, + urb->status); + goto exit; + } + + length = urb->actual_length; + data = urb->transfer_buffer; + + serial = (struct usb_serial *)urb->context; + + /* Moschip get 5 bytes + * Byte 1 IIR Port 1 (port.number is 0) + * Byte 2 IIR Port 2 (port.number is 1) + * Byte 3 IIR Port 3 (port.number is 2) + * Byte 4 IIR Port 4 (port.number is 3) + * Byte 5 FIFO status for both */ + + if (length && length > 5) { + dbg("%s \n", "Wrong data !!!"); + return; + } + + sp[0] = (__u8) data[0]; + sp[1] = (__u8) data[1]; + sp[2] = (__u8) data[2]; + sp[3] = (__u8) data[3]; + st = (__u8) data[4]; + + for (i = 0; i < serial->num_ports; i++) { + mos7840_port = mos7840_get_port_private(serial->port[i]); + wval = + (((__u16) serial->port[i]->number - + (__u16) (serial->minor)) + 1) << 8; + if (mos7840_port->open) { + if (sp[i] & 0x01) { + dbg("SP%d No Interrupt !!!\n", i); + } else { + switch (sp[i] & 0x0f) { + case SERIAL_IIR_RLS: + dbg("Serial Port %d: Receiver status error or ", i); + dbg("address bit detected in 9-bit mode\n"); + mos7840_port->MsrLsr = 1; + mos7840_get_reg(mos7840_port, wval, + LINE_STATUS_REGISTER, + &Data); + break; + case SERIAL_IIR_MS: + dbg("Serial Port %d: Modem status change\n", i); + mos7840_port->MsrLsr = 0; + mos7840_get_reg(mos7840_port, wval, + MODEM_STATUS_REGISTER, + &Data); + break; + } + } + } + } + exit: + result = usb_submit_urb(urb, GFP_ATOMIC); + if (result) { + dev_err(&urb->dev->dev, + "%s - Error %d submitting interrupt urb\n", + __FUNCTION__, result); + } + + return; + +} + +static int mos7840_port_paranoia_check(struct usb_serial_port *port, + const char *function) +{ + if (!port) { + dbg("%s - port == NULL", function); + return -1; + } + if (!port->serial) { + dbg("%s - port->serial == NULL", function); + return -1; + } + + return 0; +} + +/* Inline functions to check the sanity of a pointer that is passed to us */ +static int mos7840_serial_paranoia_check(struct usb_serial *serial, + const char *function) +{ + if (!serial) { + dbg("%s - serial == NULL", function); + return -1; + } + if (!serial->type) { + dbg("%s - serial->type == NULL!", function); + return -1; + } + + return 0; +} + +static struct usb_serial *mos7840_get_usb_serial(struct usb_serial_port *port, + const char *function) +{ + /* if no port was specified, or it fails a paranoia check */ + if (!port || + mos7840_port_paranoia_check(port, function) || + mos7840_serial_paranoia_check(port->serial, function)) { + /* then say that we don't have a valid usb_serial thing, which will * end up genrating -ENODEV return values */ + return NULL; + } + + return port->serial; +} + +/***************************************************************************** + * mos7840_bulk_in_callback + * this is the callback function for when we have received data on the + * bulk in endpoint. + *****************************************************************************/ + +static void mos7840_bulk_in_callback(struct urb *urb, struct pt_regs *regs) +{ + int status; + unsigned char *data; + struct usb_serial *serial; + struct usb_serial_port *port; + struct moschip_port *mos7840_port; + struct tty_struct *tty; + + if (!urb) { + dbg("%s", "Invalid Pointer !!!!:\n"); + return; + } + + if (urb->status) { + dbg("nonzero read bulk status received: %d", urb->status); + return; + } + + mos7840_port = (struct moschip_port *)urb->context; + if (!mos7840_port) { + dbg("%s", "NULL mos7840_port pointer \n"); + return; + } + + port = (struct usb_serial_port *)mos7840_port->port; + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Port Paranoia failed \n"); + return; + } + + serial = mos7840_get_usb_serial(port, __FUNCTION__); + if (!serial) { + dbg("%s\n", "Bad serial pointer "); + return; + } + + dbg("%s\n", "Entering... \n"); + + data = urb->transfer_buffer; + + dbg("%s", "Entering ........... \n"); + + if (urb->actual_length) { + tty = mos7840_port->port->tty; + if (tty) { + tty_buffer_request_room(tty, urb->actual_length); + tty_insert_flip_string(tty, data, urb->actual_length); + dbg(" %s \n", data); + tty_flip_buffer_push(tty); + } + mos7840_port->icount.rx += urb->actual_length; + dbg("mos7840_port->icount.rx is %d:\n", + mos7840_port->icount.rx); + } + + if (!mos7840_port->read_urb) { + dbg("%s", "URB KILLED !!!\n"); + return; + } + + if (mos7840_port->read_urb->status != -EINPROGRESS) { + mos7840_port->read_urb->dev = serial->dev; + + status = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC); + + if (status) { + dbg(" usb_submit_urb(read bulk) failed, status = %d", + status); + } + } +} + +/***************************************************************************** + * mos7840_bulk_out_data_callback + * this is the callback function for when we have finished sending serial data + * on the bulk out endpoint. + *****************************************************************************/ + +static void mos7840_bulk_out_data_callback(struct urb *urb, + struct pt_regs *regs) +{ + struct moschip_port *mos7840_port; + struct tty_struct *tty; + if (!urb) { + dbg("%s", "Invalid Pointer !!!!:\n"); + return; + } + + if (urb->status) { + dbg("nonzero write bulk status received:%d\n", urb->status); + return; + } + + mos7840_port = (struct moschip_port *)urb->context; + if (!mos7840_port) { + dbg("%s", "NULL mos7840_port pointer \n"); + return; + } + + if (mos7840_port_paranoia_check(mos7840_port->port, __FUNCTION__)) { + dbg("%s", "Port Paranoia failed \n"); + return; + } + + dbg("%s \n", "Entering ........."); + + tty = mos7840_port->port->tty; + + if (tty && mos7840_port->open) { + /* let the tty driver wakeup if it has a special * + * write_wakeup function */ + + if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) + && tty->ldisc.write_wakeup) { + (tty->ldisc.write_wakeup) (tty); + } + + /* tell the tty driver that something has changed */ + wake_up_interruptible(&tty->write_wait); + } + +} + +/************************************************************************/ +/* D R I V E R T T Y I N T E R F A C E F U N C T I O N S */ +/************************************************************************/ +#ifdef MCSSerialProbe +static int mos7840_serial_probe(struct usb_serial *serial, + const struct usb_device_id *id) +{ + + /*need to implement the mode_reg reading and updating\ + structures usb_serial_ device_type\ + (i.e num_ports, num_bulkin,bulkout etc) */ + /* Also we can update the changes attach */ + return 1; +} +#endif + +/***************************************************************************** + * mos7840_open + * this function is called by the tty driver when a port is opened + * If successful, we return 0 + * Otherwise we return a negative error number. + *****************************************************************************/ + +static int mos7840_open(struct usb_serial_port *port, struct file *filp) +{ + int response; + int j; + struct usb_serial *serial; + struct urb *urb; + __u16 Data; + int status; + struct moschip_port *mos7840_port; + + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Port Paranoia failed \n"); + return -ENODEV; + } + + mos7840_num_open_ports++; + serial = port->serial; + + if (mos7840_serial_paranoia_check(serial, __FUNCTION__)) { + dbg("%s", "Serial Paranoia failed \n"); + return -ENODEV; + } + + mos7840_port = mos7840_get_port_private(port); + + if (mos7840_port == NULL) + return -ENODEV; + + usb_clear_halt(serial->dev, port->write_urb->pipe); + usb_clear_halt(serial->dev, port->read_urb->pipe); + + /* Initialising the write urb pool */ + for (j = 0; j < NUM_URBS; ++j) { + urb = usb_alloc_urb(0, SLAB_ATOMIC); + mos7840_port->write_urb_pool[j] = urb; + + if (urb == NULL) { + err("No more urbs???"); + continue; + } + + urb->transfer_buffer = NULL; + urb->transfer_buffer = + kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); + if (!urb->transfer_buffer) { + err("%s-out of memory for urb buffers.", __FUNCTION__); + continue; + } + } + +/***************************************************************************** + * Initialize MCS7840 -- Write Init values to corresponding Registers + * + * Register Index + * 1 : IER + * 2 : FCR + * 3 : LCR + * 4 : MCR + * + * 0x08 : SP1/2 Control Reg + *****************************************************************************/ + +//NEED to check the following Block + + status = 0; + Data = 0x0; + status = mos7840_get_reg_sync(port, mos7840_port->SpRegOffset, &Data); + if (status < 0) { + dbg("Reading Spreg failed\n"); + return -1; + } + Data |= 0x80; + status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data); + if (status < 0) { + dbg("writing Spreg failed\n"); + return -1; + } + + Data &= ~0x80; + status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data); + if (status < 0) { + dbg("writing Spreg failed\n"); + return -1; + } +//End of block to be checked + + status = 0; + Data = 0x0; + status = + mos7840_get_reg_sync(port, mos7840_port->ControlRegOffset, &Data); + if (status < 0) { + dbg("Reading Controlreg failed\n"); + return -1; + } + Data |= 0x08; //Driver done bit + Data |= 0x20; //rx_disable + status = 0; + status = + mos7840_set_reg_sync(port, mos7840_port->ControlRegOffset, Data); + if (status < 0) { + dbg("writing Controlreg failed\n"); + return -1; + } + //do register settings here + // Set all regs to the device default values. + //////////////////////////////////// + // First Disable all interrupts. + //////////////////////////////////// + + Data = 0x00; + status = 0; + status = mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data); + if (status < 0) { + dbg("disableing interrupts failed\n"); + return -1; + } + // Set FIFO_CONTROL_REGISTER to the default value + Data = 0x00; + status = 0; + status = mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data); + if (status < 0) { + dbg("Writing FIFO_CONTROL_REGISTER failed\n"); + return -1; + } + + Data = 0xcf; + status = 0; + status = mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data); + if (status < 0) { + dbg("Writing FIFO_CONTROL_REGISTER failed\n"); + return -1; + } + + Data = 0x03; + status = 0; + status = mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data); + mos7840_port->shadowLCR = Data; + + Data = 0x0b; + status = 0; + status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, Data); + mos7840_port->shadowMCR = Data; + + Data = 0x00; + status = 0; + status = mos7840_get_uart_reg(port, LINE_CONTROL_REGISTER, &Data); + mos7840_port->shadowLCR = Data; + + Data |= SERIAL_LCR_DLAB; //data latch enable in LCR 0x80 + status = 0; + status = mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data); + + Data = 0x0c; + status = 0; + status = mos7840_set_uart_reg(port, DIVISOR_LATCH_LSB, Data); + + Data = 0x0; + status = 0; + status = mos7840_set_uart_reg(port, DIVISOR_LATCH_MSB, Data); + + Data = 0x00; + status = 0; + status = mos7840_get_uart_reg(port, LINE_CONTROL_REGISTER, &Data); + + Data = Data & ~SERIAL_LCR_DLAB; + status = 0; + status = mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data); + mos7840_port->shadowLCR = Data; + + //clearing Bulkin and Bulkout Fifo + Data = 0x0; + status = 0; + status = mos7840_get_reg_sync(port, mos7840_port->SpRegOffset, &Data); + + Data = Data | 0x0c; + status = 0; + status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data); + + Data = Data & ~0x0c; + status = 0; + status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data); + //Finally enable all interrupts + Data = 0x0; + Data = 0x0c; + status = 0; + status = mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data); + + //clearing rx_disable + Data = 0x0; + status = 0; + status = + mos7840_get_reg_sync(port, mos7840_port->ControlRegOffset, &Data); + Data = Data & ~0x20; + status = 0; + status = + mos7840_set_reg_sync(port, mos7840_port->ControlRegOffset, Data); + + // rx_negate + Data = 0x0; + status = 0; + status = + mos7840_get_reg_sync(port, mos7840_port->ControlRegOffset, &Data); + Data = Data | 0x10; + status = 0; + status = + mos7840_set_reg_sync(port, mos7840_port->ControlRegOffset, Data); + + /* force low_latency on so that our tty_push actually forces * + * the data through,otherwise it is scheduled, and with * + * high data rates (like with OHCI) data can get lost. */ + + if (port->tty) + port->tty->low_latency = 1; +/* Check to see if we've set up our endpoint info yet * + * (can't set it up in mos7840_startup as the structures * + * were not set up at that time.) */ + if (mos7840_num_open_ports == 1) { + if (serial->port[0]->interrupt_in_buffer == NULL) { + + /* set up interrupt urb */ + + usb_fill_int_urb(serial->port[0]->interrupt_in_urb, + serial->dev, + usb_rcvintpipe(serial->dev, + serial->port[0]-> + interrupt_in_endpointAddress), + serial->port[0]->interrupt_in_buffer, + serial->port[0]->interrupt_in_urb-> + transfer_buffer_length, + mos7840_interrupt_callback, + serial, + serial->port[0]->interrupt_in_urb-> + interval); + + /* start interrupt read for mos7840 * + * will continue as long as mos7840 is connected */ + + response = + usb_submit_urb(serial->port[0]->interrupt_in_urb, + GFP_KERNEL); + if (response) { + err("%s - Error %d submitting interrupt urb", + __FUNCTION__, response); + } + + } + + } + + /* see if we've set up our endpoint info yet * + * (can't set it up in mos7840_startup as the * + * structures were not set up at that time.) */ + + dbg("port number is %d \n", port->number); + dbg("serial number is %d \n", port->serial->minor); + dbg("Bulkin endpoint is %d \n", port->bulk_in_endpointAddress); + dbg("BulkOut endpoint is %d \n", port->bulk_out_endpointAddress); + dbg("Interrupt endpoint is %d \n", port->interrupt_in_endpointAddress); + dbg("port's number in the device is %d\n", mos7840_port->port_num); + mos7840_port->read_urb = port->read_urb; + + /* set up our bulk in urb */ + + usb_fill_bulk_urb(mos7840_port->read_urb, + serial->dev, + usb_rcvbulkpipe(serial->dev, + port->bulk_in_endpointAddress), + port->bulk_in_buffer, + mos7840_port->read_urb->transfer_buffer_length, + mos7840_bulk_in_callback, mos7840_port); + + dbg("mos7840_open: bulkin endpoint is %d\n", + port->bulk_in_endpointAddress); + response = usb_submit_urb(mos7840_port->read_urb, GFP_KERNEL); + if (response) { + err("%s - Error %d submitting control urb", __FUNCTION__, + response); + } + + /* initialize our wait queues */ + init_waitqueue_head(&mos7840_port->wait_chase); + init_waitqueue_head(&mos7840_port->delta_msr_wait); + + /* initialize our icount structure */ + memset(&(mos7840_port->icount), 0x00, sizeof(mos7840_port->icount)); + + /* initialize our port settings */ + mos7840_port->shadowMCR = MCR_MASTER_IE; /* Must set to enable ints! */ + /* send a open port command */ + mos7840_port->open = 1; + //mos7840_change_port_settings(mos7840_port,old_termios); + mos7840_port->icount.tx = 0; + mos7840_port->icount.rx = 0; + + dbg("\n\nusb_serial serial:%x mos7840_port:%x\n usb_serial_port port:%x\n\n", (unsigned int)serial, (unsigned int)mos7840_port, (unsigned int)port); + + return 0; + +} + +/***************************************************************************** + * mos7840_chars_in_buffer + * this function is called by the tty driver when it wants to know how many + * bytes of data we currently have outstanding in the port (data that has + * been written, but hasn't made it out the port yet) + * If successful, we return the number of bytes left to be written in the + * system, + * Otherwise we return a negative error number. + *****************************************************************************/ + +static int mos7840_chars_in_buffer(struct usb_serial_port *port) +{ + int i; + int chars = 0; + struct moschip_port *mos7840_port; + + dbg("%s \n", " mos7840_chars_in_buffer:entering ..........."); + + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Invalid port \n"); + return -1; + } + + mos7840_port = mos7840_get_port_private(port); + if (mos7840_port == NULL) { + dbg("%s \n", "mos7840_break:leaving ..........."); + return -1; + } + + for (i = 0; i < NUM_URBS; ++i) { + if (mos7840_port->write_urb_pool[i]->status == -EINPROGRESS) { + chars += URB_TRANSFER_BUFFER_SIZE; + } + } + dbg("%s - returns %d", __FUNCTION__, chars); + return (chars); + +} + +/************************************************************************ + * + * mos7840_block_until_tx_empty + * + * This function will block the close until one of the following: + * 1. TX count are 0 + * 2. The mos7840 has stopped + * 3. A timout of 3 seconds without activity has expired + * + ************************************************************************/ +static void mos7840_block_until_tx_empty(struct moschip_port *mos7840_port) +{ + int timeout = HZ / 10; + int wait = 30; + int count; + + while (1) { + + count = mos7840_chars_in_buffer(mos7840_port->port); + + /* Check for Buffer status */ + if (count <= 0) { + return; + } + + /* Block the thread for a while */ + interruptible_sleep_on_timeout(&mos7840_port->wait_chase, + timeout); + + /* No activity.. count down section */ + wait--; + if (wait == 0) { + dbg("%s - TIMEOUT", __FUNCTION__); + return; + } else { + /* Reset timout value back to seconds */ + wait = 30; + } + } +} + +/***************************************************************************** + * mos7840_close + * this function is called by the tty driver when a port is closed + *****************************************************************************/ + +static void mos7840_close(struct usb_serial_port *port, struct file *filp) +{ + struct usb_serial *serial; + struct moschip_port *mos7840_port; + int j; + __u16 Data; + + dbg("%s\n", "mos7840_close:entering..."); + + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Port Paranoia failed \n"); + return; + } + + serial = mos7840_get_usb_serial(port, __FUNCTION__); + if (!serial) { + dbg("%s", "Serial Paranoia failed \n"); + return; + } + + mos7840_port = mos7840_get_port_private(port); + + if (mos7840_port == NULL) { + return; + } + + for (j = 0; j < NUM_URBS; ++j) + usb_kill_urb(mos7840_port->write_urb_pool[j]); + + /* Freeing Write URBs */ + for (j = 0; j < NUM_URBS; ++j) { + if (mos7840_port->write_urb_pool[j]) { + if (mos7840_port->write_urb_pool[j]->transfer_buffer) + kfree(mos7840_port->write_urb_pool[j]-> + transfer_buffer); + + usb_free_urb(mos7840_port->write_urb_pool[j]); + } + } + + if (serial->dev) { + /* flush and block until tx is empty */ + mos7840_block_until_tx_empty(mos7840_port); + } + + /* While closing port, shutdown all bulk read, write * + * and interrupt read if they exists */ + if (serial->dev) { + + if (mos7840_port->write_urb) { + dbg("%s", "Shutdown bulk write\n"); + usb_kill_urb(mos7840_port->write_urb); + } + + if (mos7840_port->read_urb) { + dbg("%s", "Shutdown bulk read\n"); + usb_kill_urb(mos7840_port->read_urb); + } + if ((&mos7840_port->control_urb)) { + dbg("%s", "Shutdown control read\n"); + // usb_kill_urb (mos7840_port->control_urb); + + } + } +// if(mos7840_port->ctrl_buf != NULL) +// kfree(mos7840_port->ctrl_buf); + mos7840_num_open_ports--; + dbg("mos7840_num_open_ports in close%d:in port%d\n", + mos7840_num_open_ports, port->number); + if (mos7840_num_open_ports == 0) { + if (serial->port[0]->interrupt_in_urb) { + dbg("%s", "Shutdown interrupt_in_urb\n"); + } + } + + if (mos7840_port->write_urb) { + /* if this urb had a transfer buffer already (old tx) free it */ + + if (mos7840_port->write_urb->transfer_buffer != NULL) { + kfree(mos7840_port->write_urb->transfer_buffer); + } + usb_free_urb(mos7840_port->write_urb); + } + + Data = 0x0; + mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, Data); + + Data = 0x00; + mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data); + + mos7840_port->open = 0; + + dbg("%s \n", "Leaving ............"); +} + +/************************************************************************ + * + * mos7840_block_until_chase_response + * + * This function will block the close until one of the following: + * 1. Response to our Chase comes from mos7840 + * 2. A timout of 10 seconds without activity has expired + * (1K of mos7840 data @ 2400 baud ==> 4 sec to empty) + * + ************************************************************************/ + +static void mos7840_block_until_chase_response(struct moschip_port + *mos7840_port) +{ + int timeout = 1 * HZ; + int wait = 10; + int count; + + while (1) { + count = mos7840_chars_in_buffer(mos7840_port->port); + + /* Check for Buffer status */ + if (count <= 0) { + return; + } + + /* Block the thread for a while */ + interruptible_sleep_on_timeout(&mos7840_port->wait_chase, + timeout); + /* No activity.. count down section */ + wait--; + if (wait == 0) { + dbg("%s - TIMEOUT", __FUNCTION__); + return; + } else { + /* Reset timout value back to seconds */ + wait = 10; + } + } + +} + +/***************************************************************************** + * mos7840_break + * this function sends a break to the port + *****************************************************************************/ +static void mos7840_break(struct usb_serial_port *port, int break_state) +{ + unsigned char data; + struct usb_serial *serial; + struct moschip_port *mos7840_port; + + dbg("%s \n", "Entering ..........."); + dbg("mos7840_break: Start\n"); + + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Port Paranoia failed \n"); + return; + } + + serial = mos7840_get_usb_serial(port, __FUNCTION__); + if (!serial) { + dbg("%s", "Serial Paranoia failed \n"); + return; + } + + mos7840_port = mos7840_get_port_private(port); + + if (mos7840_port == NULL) { + return; + } + + if (serial->dev) { + + /* flush and block until tx is empty */ + mos7840_block_until_chase_response(mos7840_port); + } + + if (break_state == -1) { + data = mos7840_port->shadowLCR | LCR_SET_BREAK; + } else { + data = mos7840_port->shadowLCR & ~LCR_SET_BREAK; + } + + mos7840_port->shadowLCR = data; + dbg("mcs7840_break mos7840_port->shadowLCR is %x\n", + mos7840_port->shadowLCR); + mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, + mos7840_port->shadowLCR); + + return; +} + +/***************************************************************************** + * mos7840_write_room + * this function is called by the tty driver when it wants to know how many + * bytes of data we can accept for a specific port. + * If successful, we return the amount of room that we have for this port + * Otherwise we return a negative error number. + *****************************************************************************/ + +static int mos7840_write_room(struct usb_serial_port *port) +{ + int i; + int room = 0; + struct moschip_port *mos7840_port; + + dbg("%s \n", " mos7840_write_room:entering ..........."); + + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Invalid port \n"); + dbg("%s \n", " mos7840_write_room:leaving ..........."); + return -1; + } + + mos7840_port = mos7840_get_port_private(port); + if (mos7840_port == NULL) { + dbg("%s \n", "mos7840_break:leaving ..........."); + return -1; + } + + for (i = 0; i < NUM_URBS; ++i) { + if (mos7840_port->write_urb_pool[i]->status != -EINPROGRESS) { + room += URB_TRANSFER_BUFFER_SIZE; + } + } + + dbg("%s - returns %d", __FUNCTION__, room); + return (room); + +} + +/***************************************************************************** + * mos7840_write + * this function is called by the tty driver when data should be written to + * the port. + * If successful, we return the number of bytes written, otherwise we + * return a negative error number. + *****************************************************************************/ + +static int mos7840_write(struct usb_serial_port *port, + const unsigned char *data, int count) +{ + int status; + int i; + int bytes_sent = 0; + int transfer_size; + int from_user = 0; + + struct moschip_port *mos7840_port; + struct usb_serial *serial; + struct urb *urb; + //__u16 Data; + const unsigned char *current_position = data; + unsigned char *data1; + dbg("%s \n", "entering ..........."); + //dbg("mos7840_write: mos7840_port->shadowLCR is %x\n",mos7840_port->shadowLCR); + +#ifdef NOTMOS7840 + Data = 0x00; + status = 0; + status = mos7840_get_uart_reg(port, LINE_CONTROL_REGISTER, &Data); + mos7840_port->shadowLCR = Data; + dbg("mos7840_write: LINE_CONTROL_REGISTER is %x\n", Data); + dbg("mos7840_write: mos7840_port->shadowLCR is %x\n", + mos7840_port->shadowLCR); + + //Data = 0x03; + //status = mos7840_set_uart_reg(port,LINE_CONTROL_REGISTER,Data); + //mos7840_port->shadowLCR=Data;//Need to add later + + Data |= SERIAL_LCR_DLAB; //data latch enable in LCR 0x80 + status = 0; + status = mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data); + + //Data = 0x0c; + //status = mos7840_set_uart_reg(port,DIVISOR_LATCH_LSB,Data); + Data = 0x00; + status = 0; + status = mos7840_get_uart_reg(port, DIVISOR_LATCH_LSB, &Data); + dbg("mos7840_write:DLL value is %x\n", Data); + + Data = 0x0; + status = 0; + status = mos7840_get_uart_reg(port, DIVISOR_LATCH_MSB, &Data); + dbg("mos7840_write:DLM value is %x\n", Data); + + Data = Data & ~SERIAL_LCR_DLAB; + dbg("mos7840_write: mos7840_port->shadowLCR is %x\n", + mos7840_port->shadowLCR); + status = 0; + status = mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data); +#endif + + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Port Paranoia failed \n"); + return -1; + } + + serial = port->serial; + if (mos7840_serial_paranoia_check(serial, __FUNCTION__)) { + dbg("%s", "Serial Paranoia failed \n"); + return -1; + } + + mos7840_port = mos7840_get_port_private(port); + if (mos7840_port == NULL) { + dbg("%s", "mos7840_port is NULL\n"); + return -1; + } + + /* try to find a free urb in the list */ + urb = NULL; + + for (i = 0; i < NUM_URBS; ++i) { + if (mos7840_port->write_urb_pool[i]->status != -EINPROGRESS) { + urb = mos7840_port->write_urb_pool[i]; + dbg("\nURB:%d", i); + break; + } + } + + if (urb == NULL) { + dbg("%s - no more free urbs", __FUNCTION__); + goto exit; + } + + if (urb->transfer_buffer == NULL) { + urb->transfer_buffer = + kmalloc(URB_TRANSFER_BUFFER_SIZE, GFP_KERNEL); + + if (urb->transfer_buffer == NULL) { + err("%s no more kernel memory...", __FUNCTION__); + goto exit; + } + } + transfer_size = min(count, URB_TRANSFER_BUFFER_SIZE); + + if (from_user) { + if (copy_from_user + (urb->transfer_buffer, current_position, transfer_size)) { + bytes_sent = -EFAULT; + goto exit; + } + } else { + memcpy(urb->transfer_buffer, current_position, transfer_size); + } + + /* fill urb with data and submit */ + usb_fill_bulk_urb(urb, + serial->dev, + usb_sndbulkpipe(serial->dev, + port->bulk_out_endpointAddress), + urb->transfer_buffer, + transfer_size, + mos7840_bulk_out_data_callback, mos7840_port); + + data1 = urb->transfer_buffer; + dbg("\nbulkout endpoint is %d", port->bulk_out_endpointAddress); + + /* send it down the pipe */ + status = usb_submit_urb(urb, GFP_ATOMIC); + + if (status) { + err("%s - usb_submit_urb(write bulk) failed with status = %d", + __FUNCTION__, status); + bytes_sent = status; + goto exit; + } + bytes_sent = transfer_size; + mos7840_port->icount.tx += transfer_size; + dbg("mos7840_port->icount.tx is %d:\n", mos7840_port->icount.tx); + exit: + + return bytes_sent; + +} + +/***************************************************************************** + * mos7840_throttle + * this function is called by the tty driver when it wants to stop the data + * being read from the port. + *****************************************************************************/ + +static void mos7840_throttle(struct usb_serial_port *port) +{ + struct moschip_port *mos7840_port; + struct tty_struct *tty; + int status; + + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Invalid port \n"); + return; + } + + dbg("- port %d\n", port->number); + + mos7840_port = mos7840_get_port_private(port); + + if (mos7840_port == NULL) + return; + + if (!mos7840_port->open) { + dbg("%s\n", "port not opened"); + return; + } + + dbg("%s", "Entering .......... \n"); + + tty = port->tty; + if (!tty) { + dbg("%s - no tty available", __FUNCTION__); + return; + } + + /* if we are implementing XON/XOFF, send the stop character */ + if (I_IXOFF(tty)) { + unsigned char stop_char = STOP_CHAR(tty); + status = mos7840_write(port, &stop_char, 1); + if (status <= 0) { + return; + } + } + + /* if we are implementing RTS/CTS, toggle that line */ + if (tty->termios->c_cflag & CRTSCTS) { + mos7840_port->shadowMCR &= ~MCR_RTS; + status = 0; + status = + mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, + mos7840_port->shadowMCR); + + if (status < 0) { + return; + } + } + + return; +} + +/***************************************************************************** + * mos7840_unthrottle + * this function is called by the tty driver when it wants to resume the data + * being read from the port (called after SerialThrottle is called) + *****************************************************************************/ +static void mos7840_unthrottle(struct usb_serial_port *port) +{ + struct tty_struct *tty; + int status; + struct moschip_port *mos7840_port = mos7840_get_port_private(port); + + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Invalid port \n"); + return; + } + + if (mos7840_port == NULL) + return; + + if (!mos7840_port->open) { + dbg("%s - port not opened", __FUNCTION__); + return; + } + + dbg("%s", "Entering .......... \n"); + + tty = port->tty; + if (!tty) { + dbg("%s - no tty available", __FUNCTION__); + return; + } + + /* if we are implementing XON/XOFF, send the start character */ + if (I_IXOFF(tty)) { + unsigned char start_char = START_CHAR(tty); + status = mos7840_write(port, &start_char, 1); + if (status <= 0) { + return; + } + } + + /* if we are implementing RTS/CTS, toggle that line */ + if (tty->termios->c_cflag & CRTSCTS) { + mos7840_port->shadowMCR |= MCR_RTS; + status = 0; + status = + mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, + mos7840_port->shadowMCR); + if (status < 0) { + return; + } + } + + return; +} + +static int mos7840_tiocmget(struct usb_serial_port *port, struct file *file) +{ + struct moschip_port *mos7840_port; + unsigned int result; + __u16 msr; + __u16 mcr; + int status = 0; + mos7840_port = mos7840_get_port_private(port); + + dbg("%s - port %d", __FUNCTION__, port->number); + + if (mos7840_port == NULL) + return -ENODEV; + + status = mos7840_get_uart_reg(port, MODEM_STATUS_REGISTER, &msr); + status = mos7840_get_uart_reg(port, MODEM_CONTROL_REGISTER, &mcr); + result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) + | ((mcr & MCR_RTS) ? TIOCM_RTS : 0) + | ((mcr & MCR_LOOPBACK) ? TIOCM_LOOP : 0) + | ((msr & MOS7840_MSR_CTS) ? TIOCM_CTS : 0) + | ((msr & MOS7840_MSR_CD) ? TIOCM_CAR : 0) + | ((msr & MOS7840_MSR_RI) ? TIOCM_RI : 0) + | ((msr & MOS7840_MSR_DSR) ? TIOCM_DSR : 0); + + dbg("%s - 0x%04X", __FUNCTION__, result); + + return result; +} + +static int mos7840_tiocmset(struct usb_serial_port *port, struct file *file, + unsigned int set, unsigned int clear) +{ + struct moschip_port *mos7840_port; + unsigned int mcr; + unsigned int status; + + dbg("%s - port %d", __FUNCTION__, port->number); + + mos7840_port = mos7840_get_port_private(port); + + if (mos7840_port == NULL) + return -ENODEV; + + mcr = mos7840_port->shadowMCR; + if (clear & TIOCM_RTS) + mcr &= ~MCR_RTS; + if (clear & TIOCM_DTR) + mcr &= ~MCR_DTR; + if (clear & TIOCM_LOOP) + mcr &= ~MCR_LOOPBACK; + + if (set & TIOCM_RTS) + mcr |= MCR_RTS; + if (set & TIOCM_DTR) + mcr |= MCR_DTR; + if (set & TIOCM_LOOP) + mcr |= MCR_LOOPBACK; + + mos7840_port->shadowMCR = mcr; + + status = 0; + status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, mcr); + if (status < 0) { + dbg("setting MODEM_CONTROL_REGISTER Failed\n"); + return -1; + } + + return 0; +} + +/***************************************************************************** + * mos7840_calc_baud_rate_divisor + * this function calculates the proper baud rate divisor for the specified + * baud rate. + *****************************************************************************/ +static int mos7840_calc_baud_rate_divisor(int baudRate, int *divisor, + __u16 * clk_sel_val) +{ + + dbg("%s - %d", __FUNCTION__, baudRate); + + if (baudRate <= 115200) { + *divisor = 115200 / baudRate; + *clk_sel_val = 0x0; + } + if ((baudRate > 115200) && (baudRate <= 230400)) { + *divisor = 230400 / baudRate; + *clk_sel_val = 0x10; + } else if ((baudRate > 230400) && (baudRate <= 403200)) { + *divisor = 403200 / baudRate; + *clk_sel_val = 0x20; + } else if ((baudRate > 403200) && (baudRate <= 460800)) { + *divisor = 460800 / baudRate; + *clk_sel_val = 0x30; + } else if ((baudRate > 460800) && (baudRate <= 806400)) { + *divisor = 806400 / baudRate; + *clk_sel_val = 0x40; + } else if ((baudRate > 806400) && (baudRate <= 921600)) { + *divisor = 921600 / baudRate; + *clk_sel_val = 0x50; + } else if ((baudRate > 921600) && (baudRate <= 1572864)) { + *divisor = 1572864 / baudRate; + *clk_sel_val = 0x60; + } else if ((baudRate > 1572864) && (baudRate <= 3145728)) { + *divisor = 3145728 / baudRate; + *clk_sel_val = 0x70; + } + return 0; + +#ifdef NOTMCS7840 + + for (i = 0; i < ARRAY_SIZE(mos7840_divisor_table); i++) { + if (mos7840_divisor_table[i].BaudRate == baudrate) { + *divisor = mos7840_divisor_table[i].Divisor; + return 0; + } + } + + /* After trying for all the standard baud rates * + * Try calculating the divisor for this baud rate */ + + if (baudrate > 75 && baudrate < 230400) { + /* get the divisor */ + custom = (__u16) (230400L / baudrate); + + /* Check for round off */ + round1 = (__u16) (2304000L / baudrate); + round = (__u16) (round1 - (custom * 10)); + if (round > 4) { + custom++; + } + *divisor = custom; + + dbg(" Baud %d = %d\n", baudrate, custom); + return 0; + } + + dbg("%s\n", " Baud calculation Failed..."); + return -1; +#endif +} + +/***************************************************************************** + * mos7840_send_cmd_write_baud_rate + * this function sends the proper command to change the baud rate of the + * specified port. + *****************************************************************************/ + +static int mos7840_send_cmd_write_baud_rate(struct moschip_port *mos7840_port, + int baudRate) +{ + int divisor = 0; + int status; + __u16 Data; + unsigned char number; + __u16 clk_sel_val; + struct usb_serial_port *port; + + if (mos7840_port == NULL) + return -1; + + port = (struct usb_serial_port *)mos7840_port->port; + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Invalid port \n"); + return -1; + } + + if (mos7840_serial_paranoia_check(port->serial, __FUNCTION__)) { + dbg("%s", "Invalid Serial \n"); + return -1; + } + + dbg("%s", "Entering .......... \n"); + + number = mos7840_port->port->number - mos7840_port->port->serial->minor; + + dbg("%s - port = %d, baud = %d", __FUNCTION__, + mos7840_port->port->number, baudRate); + //reset clk_uart_sel in spregOffset + if (baudRate > 115200) { +#ifdef HW_flow_control + //NOTE: need to see the pther register to modify + //setting h/w flow control bit to 1; + status = 0; + Data = 0x2b; + mos7840_port->shadowMCR = Data; + status = + mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, Data); + if (status < 0) { + dbg("Writing spreg failed in set_serial_baud\n"); + return -1; + } +#endif + + } else { +#ifdef HW_flow_control + //setting h/w flow control bit to 0; + status = 0; + Data = 0xb; + mos7840_port->shadowMCR = Data; + status = + mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, Data); + if (status < 0) { + dbg("Writing spreg failed in set_serial_baud\n"); + return -1; + } +#endif + + } + + if (1) //baudRate <= 115200) + { + clk_sel_val = 0x0; + Data = 0x0; + status = 0; + status = + mos7840_calc_baud_rate_divisor(baudRate, &divisor, + &clk_sel_val); + status = + mos7840_get_reg_sync(port, mos7840_port->SpRegOffset, + &Data); + if (status < 0) { + dbg("reading spreg failed in set_serial_baud\n"); + return -1; + } + Data = (Data & 0x8f) | clk_sel_val; + status = 0; + status = + mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data); + if (status < 0) { + dbg("Writing spreg failed in set_serial_baud\n"); + return -1; + } + /* Calculate the Divisor */ + + if (status) { + err("%s - bad baud rate", __FUNCTION__); + dbg("%s\n", "bad baud rate"); + return status; + } + /* Enable access to divisor latch */ + Data = mos7840_port->shadowLCR | SERIAL_LCR_DLAB; + mos7840_port->shadowLCR = Data; + mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data); + + /* Write the divisor */ + Data = (unsigned char)(divisor & 0xff); + dbg("set_serial_baud Value to write DLL is %x\n", Data); + mos7840_set_uart_reg(port, DIVISOR_LATCH_LSB, Data); + + Data = (unsigned char)((divisor & 0xff00) >> 8); + dbg("set_serial_baud Value to write DLM is %x\n", Data); + mos7840_set_uart_reg(port, DIVISOR_LATCH_MSB, Data); + + /* Disable access to divisor latch */ + Data = mos7840_port->shadowLCR & ~SERIAL_LCR_DLAB; + mos7840_port->shadowLCR = Data; + mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data); + + } + + return status; +} + +/***************************************************************************** + * mos7840_change_port_settings + * This routine is called to set the UART on the device to match + * the specified new settings. + *****************************************************************************/ + +static void mos7840_change_port_settings(struct moschip_port *mos7840_port, + struct termios *old_termios) +{ + struct tty_struct *tty; + int baud; + unsigned cflag; + unsigned iflag; + __u8 lData; + __u8 lParity; + __u8 lStop; + int status; + __u16 Data; + struct usb_serial_port *port; + struct usb_serial *serial; + + if (mos7840_port == NULL) + return; + + port = (struct usb_serial_port *)mos7840_port->port; + + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Invalid port \n"); + return; + } + + if (mos7840_serial_paranoia_check(port->serial, __FUNCTION__)) { + dbg("%s", "Invalid Serial \n"); + return; + } + + serial = port->serial; + + dbg("%s - port %d", __FUNCTION__, mos7840_port->port->number); + + if (!mos7840_port->open) { + dbg("%s - port not opened", __FUNCTION__); + return; + } + + tty = mos7840_port->port->tty; + + if ((!tty) || (!tty->termios)) { + dbg("%s - no tty structures", __FUNCTION__); + return; + } + + dbg("%s", "Entering .......... \n"); + + lData = LCR_BITS_8; + lStop = LCR_STOP_1; + lParity = LCR_PAR_NONE; + + cflag = tty->termios->c_cflag; + iflag = tty->termios->c_iflag; + + /* Change the number of bits */ + if (cflag & CSIZE) { + switch (cflag & CSIZE) { + case CS5: + lData = LCR_BITS_5; + break; + + case CS6: + lData = LCR_BITS_6; + break; + + case CS7: + lData = LCR_BITS_7; + break; + default: + case CS8: + lData = LCR_BITS_8; + break; + } + } + /* Change the Parity bit */ + if (cflag & PARENB) { + if (cflag & PARODD) { + lParity = LCR_PAR_ODD; + dbg("%s - parity = odd", __FUNCTION__); + } else { + lParity = LCR_PAR_EVEN; + dbg("%s - parity = even", __FUNCTION__); + } + + } else { + dbg("%s - parity = none", __FUNCTION__); + } + + if (cflag & CMSPAR) { + lParity = lParity | 0x20; + } + + /* Change the Stop bit */ + if (cflag & CSTOPB) { + lStop = LCR_STOP_2; + dbg("%s - stop bits = 2", __FUNCTION__); + } else { + lStop = LCR_STOP_1; + dbg("%s - stop bits = 1", __FUNCTION__); + } + + /* Update the LCR with the correct value */ + mos7840_port->shadowLCR &= + ~(LCR_BITS_MASK | LCR_STOP_MASK | LCR_PAR_MASK); + mos7840_port->shadowLCR |= (lData | lParity | lStop); + + dbg("mos7840_change_port_settings mos7840_port->shadowLCR is %x\n", + mos7840_port->shadowLCR); + /* Disable Interrupts */ + Data = 0x00; + mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data); + + Data = 0x00; + mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data); + + Data = 0xcf; + mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data); + + /* Send the updated LCR value to the mos7840 */ + Data = mos7840_port->shadowLCR; + + mos7840_set_uart_reg(port, LINE_CONTROL_REGISTER, Data); + + Data = 0x00b; + mos7840_port->shadowMCR = Data; + mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, Data); + Data = 0x00b; + mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, Data); + + /* set up the MCR register and send it to the mos7840 */ + + mos7840_port->shadowMCR = MCR_MASTER_IE; + if (cflag & CBAUD) { + mos7840_port->shadowMCR |= (MCR_DTR | MCR_RTS); + } + + if (cflag & CRTSCTS) { + mos7840_port->shadowMCR |= (MCR_XON_ANY); + + } else { + mos7840_port->shadowMCR &= ~(MCR_XON_ANY); + } + + Data = mos7840_port->shadowMCR; + mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, Data); + + /* Determine divisor based on baud rate */ + baud = tty_get_baud_rate(tty); + + if (!baud) { + /* pick a default, any default... */ + dbg("%s\n", "Picked default baud..."); + baud = 9600; + } + + dbg("%s - baud rate = %d", __FUNCTION__, baud); + status = mos7840_send_cmd_write_baud_rate(mos7840_port, baud); + + /* Enable Interrupts */ + Data = 0x0c; + mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data); + + if (mos7840_port->read_urb->status != -EINPROGRESS) { + mos7840_port->read_urb->dev = serial->dev; + + status = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC); + + if (status) { + dbg(" usb_submit_urb(read bulk) failed, status = %d", + status); + } + } + wake_up(&mos7840_port->delta_msr_wait); + mos7840_port->delta_msr_cond = 1; + dbg("mos7840_change_port_settings mos7840_port->shadowLCR is End %x\n", + mos7840_port->shadowLCR); + + return; +} + +/***************************************************************************** + * mos7840_set_termios + * this function is called by the tty driver when it wants to change + * the termios structure + *****************************************************************************/ + +static void mos7840_set_termios(struct usb_serial_port *port, + struct termios *old_termios) +{ + int status; + unsigned int cflag; + struct usb_serial *serial; + struct moschip_port *mos7840_port; + struct tty_struct *tty; + dbg("mos7840_set_termios: START\n"); + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Invalid port \n"); + return; + } + + serial = port->serial; + + if (mos7840_serial_paranoia_check(serial, __FUNCTION__)) { + dbg("%s", "Invalid Serial \n"); + return; + } + + mos7840_port = mos7840_get_port_private(port); + + if (mos7840_port == NULL) + return; + + tty = port->tty; + + if (!port->tty || !port->tty->termios) { + dbg("%s - no tty or termios", __FUNCTION__); + return; + } + + if (!mos7840_port->open) { + dbg("%s - port not opened", __FUNCTION__); + return; + } + + dbg("%s\n", "setting termios - "); + + cflag = tty->termios->c_cflag; + + if (!cflag) { + dbg("%s %s\n", __FUNCTION__, "cflag is NULL"); + return; + } + + /* check that they really want us to change something */ + if (old_termios) { + if ((cflag == old_termios->c_cflag) && + (RELEVANT_IFLAG(tty->termios->c_iflag) == + RELEVANT_IFLAG(old_termios->c_iflag))) { + dbg("%s\n", "Nothing to change"); + return; + } + } + + dbg("%s - clfag %08x iflag %08x", __FUNCTION__, + tty->termios->c_cflag, RELEVANT_IFLAG(tty->termios->c_iflag)); + + if (old_termios) { + dbg("%s - old clfag %08x old iflag %08x", __FUNCTION__, + old_termios->c_cflag, RELEVANT_IFLAG(old_termios->c_iflag)); + } + + dbg("%s - port %d", __FUNCTION__, port->number); + + /* change the port settings to the new ones specified */ + + mos7840_change_port_settings(mos7840_port, old_termios); + + if (!mos7840_port->read_urb) { + dbg("%s", "URB KILLED !!!!!\n"); + return; + } + + if (mos7840_port->read_urb->status != -EINPROGRESS) { + mos7840_port->read_urb->dev = serial->dev; + status = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC); + if (status) { + dbg(" usb_submit_urb(read bulk) failed, status = %d", + status); + } + } + return; +} + +/***************************************************************************** + * mos7840_get_lsr_info - get line status register info + * + * Purpose: Let user call ioctl() to get info when the UART physically + * is emptied. On bus types like RS485, the transmitter must + * release the bus after transmitting. This must be done when + * the transmit shift register is empty, not be done when the + * transmit holding register is empty. This functionality + * allows an RS485 driver to be written in user space. + *****************************************************************************/ + +static int mos7840_get_lsr_info(struct moschip_port *mos7840_port, + unsigned int *value) +{ + int count; + unsigned int result = 0; + + count = mos7840_chars_in_buffer(mos7840_port->port); + if (count == 0) { + dbg("%s -- Empty", __FUNCTION__); + result = TIOCSER_TEMT; + } + + if (copy_to_user(value, &result, sizeof(int))) + return -EFAULT; + return 0; +} + +/***************************************************************************** + * mos7840_get_bytes_avail - get number of bytes available + * + * Purpose: Let user call ioctl to get the count of number of bytes available. + *****************************************************************************/ + +static int mos7840_get_bytes_avail(struct moschip_port *mos7840_port, + unsigned int *value) +{ + unsigned int result = 0; + struct tty_struct *tty = mos7840_port->port->tty; + + if (!tty) + return -ENOIOCTLCMD; + + result = tty->read_cnt; + + dbg("%s(%d) = %d", __FUNCTION__, mos7840_port->port->number, result); + if (copy_to_user(value, &result, sizeof(int))) + return -EFAULT; + + return -ENOIOCTLCMD; +} + +/***************************************************************************** + * mos7840_set_modem_info + * function to set modem info + *****************************************************************************/ + +static int mos7840_set_modem_info(struct moschip_port *mos7840_port, + unsigned int cmd, unsigned int *value) +{ + unsigned int mcr; + unsigned int arg; + __u16 Data; + int status; + struct usb_serial_port *port; + + if (mos7840_port == NULL) + return -1; + + port = (struct usb_serial_port *)mos7840_port->port; + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Invalid port \n"); + return -1; + } + + mcr = mos7840_port->shadowMCR; + + if (copy_from_user(&arg, value, sizeof(int))) + return -EFAULT; + + switch (cmd) { + case TIOCMBIS: + if (arg & TIOCM_RTS) + mcr |= MCR_RTS; + if (arg & TIOCM_DTR) + mcr |= MCR_RTS; + if (arg & TIOCM_LOOP) + mcr |= MCR_LOOPBACK; + break; + + case TIOCMBIC: + if (arg & TIOCM_RTS) + mcr &= ~MCR_RTS; + if (arg & TIOCM_DTR) + mcr &= ~MCR_RTS; + if (arg & TIOCM_LOOP) + mcr &= ~MCR_LOOPBACK; + break; + + case TIOCMSET: + /* turn off the RTS and DTR and LOOPBACK + * and then only turn on what was asked to */ + mcr &= ~(MCR_RTS | MCR_DTR | MCR_LOOPBACK); + mcr |= ((arg & TIOCM_RTS) ? MCR_RTS : 0); + mcr |= ((arg & TIOCM_DTR) ? MCR_DTR : 0); + mcr |= ((arg & TIOCM_LOOP) ? MCR_LOOPBACK : 0); + break; + } + + mos7840_port->shadowMCR = mcr; + + Data = mos7840_port->shadowMCR; + status = 0; + status = mos7840_set_uart_reg(port, MODEM_CONTROL_REGISTER, Data); + if (status < 0) { + dbg("setting MODEM_CONTROL_REGISTER Failed\n"); + return -1; + } + + return 0; +} + +/***************************************************************************** + * mos7840_get_modem_info + * function to get modem info + *****************************************************************************/ + +static int mos7840_get_modem_info(struct moschip_port *mos7840_port, + unsigned int *value) +{ + unsigned int result = 0; + __u16 msr; + unsigned int mcr = mos7840_port->shadowMCR; + int status = 0; + status = + mos7840_get_uart_reg(mos7840_port->port, MODEM_STATUS_REGISTER, + &msr); + result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) /* 0x002 */ + |((mcr & MCR_RTS) ? TIOCM_RTS : 0) /* 0x004 */ + |((msr & MOS7840_MSR_CTS) ? TIOCM_CTS : 0) /* 0x020 */ + |((msr & MOS7840_MSR_CD) ? TIOCM_CAR : 0) /* 0x040 */ + |((msr & MOS7840_MSR_RI) ? TIOCM_RI : 0) /* 0x080 */ + |((msr & MOS7840_MSR_DSR) ? TIOCM_DSR : 0); /* 0x100 */ + + dbg("%s -- %x", __FUNCTION__, result); + + if (copy_to_user(value, &result, sizeof(int))) + return -EFAULT; + return 0; +} + +/***************************************************************************** + * mos7840_get_serial_info + * function to get information about serial port + *****************************************************************************/ + +static int mos7840_get_serial_info(struct moschip_port *mos7840_port, + struct serial_struct *retinfo) +{ + struct serial_struct tmp; + + if (mos7840_port == NULL) + return -1; + + if (!retinfo) + return -EFAULT; + + memset(&tmp, 0, sizeof(tmp)); + + tmp.type = PORT_16550A; + tmp.line = mos7840_port->port->serial->minor; + tmp.port = mos7840_port->port->number; + tmp.irq = 0; + tmp.flags = ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ; + tmp.xmit_fifo_size = NUM_URBS * URB_TRANSFER_BUFFER_SIZE; + tmp.baud_base = 9600; + tmp.close_delay = 5 * HZ; + tmp.closing_wait = 30 * HZ; + + if (copy_to_user(retinfo, &tmp, sizeof(*retinfo))) + return -EFAULT; + return 0; +} + +/***************************************************************************** + * SerialIoctl + * this function handles any ioctl calls to the driver + *****************************************************************************/ + +static int mos7840_ioctl(struct usb_serial_port *port, struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct moschip_port *mos7840_port; + struct tty_struct *tty; + + struct async_icount cnow; + struct async_icount cprev; + struct serial_icounter_struct icount; + int mosret = 0; + int retval; + struct tty_ldisc *ld; + + if (mos7840_port_paranoia_check(port, __FUNCTION__)) { + dbg("%s", "Invalid port \n"); + return -1; + } + + mos7840_port = mos7840_get_port_private(port); + tty = mos7840_port->port->tty; + + if (mos7840_port == NULL) + return -1; + + dbg("%s - port %d, cmd = 0x%x", __FUNCTION__, port->number, cmd); + + switch (cmd) { + /* return number of bytes available */ + + case TIOCINQ: + dbg("%s (%d) TIOCINQ", __FUNCTION__, port->number); + return mos7840_get_bytes_avail(mos7840_port, + (unsigned int *)arg); + break; + + case TIOCOUTQ: + dbg("%s (%d) TIOCOUTQ", __FUNCTION__, port->number); + return put_user(tty->driver->chars_in_buffer ? + tty->driver->chars_in_buffer(tty) : 0, + (int __user *)arg); + break; + + case TCFLSH: + retval = tty_check_change(tty); + if (retval) + return retval; + + ld = tty_ldisc_ref(tty); + switch (arg) { + case TCIFLUSH: + if (ld && ld->flush_buffer) + ld->flush_buffer(tty); + break; + case TCIOFLUSH: + if (ld && ld->flush_buffer) + ld->flush_buffer(tty); + /* fall through */ + case TCOFLUSH: + if (tty->driver->flush_buffer) + tty->driver->flush_buffer(tty); + break; + default: + tty_ldisc_deref(ld); + return -EINVAL; + } + tty_ldisc_deref(ld); + return 0; + + case TCGETS: + if (kernel_termios_to_user_termios + ((struct termios __user *)arg, tty->termios)) + return -EFAULT; + return 0; + + case TIOCSERGETLSR: + dbg("%s (%d) TIOCSERGETLSR", __FUNCTION__, port->number); + return mos7840_get_lsr_info(mos7840_port, (unsigned int *)arg); + return 0; + + case TIOCMBIS: + case TIOCMBIC: + case TIOCMSET: + dbg("%s (%d) TIOCMSET/TIOCMBIC/TIOCMSET", __FUNCTION__, + port->number); + mosret = + mos7840_set_modem_info(mos7840_port, cmd, + (unsigned int *)arg); + return mosret; + + case TIOCMGET: + dbg("%s (%d) TIOCMGET", __FUNCTION__, port->number); + return mos7840_get_modem_info(mos7840_port, + (unsigned int *)arg); + + case TIOCGSERIAL: + dbg("%s (%d) TIOCGSERIAL", __FUNCTION__, port->number); + return mos7840_get_serial_info(mos7840_port, + (struct serial_struct *)arg); + + case TIOCSSERIAL: + dbg("%s (%d) TIOCSSERIAL", __FUNCTION__, port->number); + break; + + case TIOCMIWAIT: + dbg("%s (%d) TIOCMIWAIT", __FUNCTION__, port->number); + cprev = mos7840_port->icount; + while (1) { + //interruptible_sleep_on(&mos7840_port->delta_msr_wait); + mos7840_port->delta_msr_cond = 0; + wait_event_interruptible(mos7840_port->delta_msr_wait, + (mos7840_port-> + delta_msr_cond == 1)); + + /* see if a signal did it */ + if (signal_pending(current)) + return -ERESTARTSYS; + cnow = mos7840_port->icount; + if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && + cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) + return -EIO; /* no change => error */ + if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || + ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || + ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || + ((arg & TIOCM_CTS) && (cnow.cts != cprev.cts))) { + return 0; + } + cprev = cnow; + } + /* NOTREACHED */ + break; + + case TIOCGICOUNT: + cnow = mos7840_port->icount; + icount.cts = cnow.cts; + icount.dsr = cnow.dsr; + icount.rng = cnow.rng; + icount.dcd = cnow.dcd; + icount.rx = cnow.rx; + icount.tx = cnow.tx; + icount.frame = cnow.frame; + icount.overrun = cnow.overrun; + icount.parity = cnow.parity; + icount.brk = cnow.brk; + icount.buf_overrun = cnow.buf_overrun; + + dbg("%s (%d) TIOCGICOUNT RX=%d, TX=%d", __FUNCTION__, + port->number, icount.rx, icount.tx); + if (copy_to_user((void *)arg, &icount, sizeof(icount))) + return -EFAULT; + return 0; + + case TIOCEXBAUD: + return 0; + default: + break; + } + + return -ENOIOCTLCMD; +} + +static int mos7840_calc_num_ports(struct usb_serial *serial) +{ + + dbg("numberofendpoints: %d \n", + (int)serial->interface->cur_altsetting->desc.bNumEndpoints); + dbg("numberofendpoints: %d \n", + (int)serial->interface->altsetting->desc.bNumEndpoints); + if (serial->interface->cur_altsetting->desc.bNumEndpoints == 5) { + mos7840_num_ports = 2; + serial->type->num_ports = 2; + } else if (serial->interface->cur_altsetting->desc.bNumEndpoints == 9) { + mos7840_num_ports = 4; + serial->type->num_bulk_in = 4; + serial->type->num_bulk_out = 4; + serial->type->num_ports = 4; + } + + return mos7840_num_ports; +} + +/**************************************************************************** + * mos7840_startup + ****************************************************************************/ + +static int mos7840_startup(struct usb_serial *serial) +{ + struct moschip_port *mos7840_port; + struct usb_device *dev; + int i, status; + + __u16 Data; + dbg("%s \n", " mos7840_startup :entering.........."); + + if (!serial) { + dbg("%s\n", "Invalid Handler"); + return -1; + } + + dev = serial->dev; + + dbg("%s\n", "Entering..."); + + /* we set up the pointers to the endpoints in the mos7840_open * + * function, as the structures aren't created yet. */ + + /* set up port private structures */ + for (i = 0; i < serial->num_ports; ++i) { + mos7840_port = kmalloc(sizeof(struct moschip_port), GFP_KERNEL); + if (mos7840_port == NULL) { + err("%s - Out of memory", __FUNCTION__); + return -ENOMEM; + } + memset(mos7840_port, 0, sizeof(struct moschip_port)); + + /* Initialize all port interrupt end point to port 0 int endpoint * + * Our device has only one interrupt end point comman to all port */ + + mos7840_port->port = serial->port[i]; + mos7840_set_port_private(serial->port[i], mos7840_port); + + mos7840_port->port_num = ((serial->port[i]->number - + (serial->port[i]->serial->minor)) + + 1); + + if (mos7840_port->port_num == 1) { + mos7840_port->SpRegOffset = 0x0; + mos7840_port->ControlRegOffset = 0x1; + mos7840_port->DcrRegOffset = 0x4; + } else if ((mos7840_port->port_num == 2) + && (mos7840_num_ports == 4)) { + mos7840_port->SpRegOffset = 0x8; + mos7840_port->ControlRegOffset = 0x9; + mos7840_port->DcrRegOffset = 0x16; + } else if ((mos7840_port->port_num == 2) + && (mos7840_num_ports == 2)) { + mos7840_port->SpRegOffset = 0xa; + mos7840_port->ControlRegOffset = 0xb; + mos7840_port->DcrRegOffset = 0x19; + } else if ((mos7840_port->port_num == 3) + && (mos7840_num_ports == 4)) { + mos7840_port->SpRegOffset = 0xa; + mos7840_port->ControlRegOffset = 0xb; + mos7840_port->DcrRegOffset = 0x19; + } else if ((mos7840_port->port_num == 4) + && (mos7840_num_ports == 4)) { + mos7840_port->SpRegOffset = 0xc; + mos7840_port->ControlRegOffset = 0xd; + mos7840_port->DcrRegOffset = 0x1c; + } + mos7840_dump_serial_port(mos7840_port); + + mos7840_set_port_private(serial->port[i], mos7840_port); + + //enable rx_disable bit in control register + + status = + mos7840_get_reg_sync(serial->port[i], + mos7840_port->ControlRegOffset, &Data); + if (status < 0) { + dbg("Reading ControlReg failed status-0x%x\n", status); + break; + } else + dbg("ControlReg Reading success val is %x, status%d\n", + Data, status); + Data |= 0x08; //setting driver done bit + Data |= 0x04; //sp1_bit to have cts change reflect in modem status reg + + //Data |= 0x20; //rx_disable bit + status = 0; + status = + mos7840_set_reg_sync(serial->port[i], + mos7840_port->ControlRegOffset, Data); + if (status < 0) { + dbg("Writing ControlReg failed(rx_disable) status-0x%x\n", status); + break; + } else + dbg("ControlReg Writing success(rx_disable) status%d\n", + status); + + //Write default values in DCR (i.e 0x01 in DCR0, 0x05 in DCR2 and 0x24 in DCR3 + Data = 0x01; + status = 0; + status = + mos7840_set_reg_sync(serial->port[i], + (__u16) (mos7840_port->DcrRegOffset + + 0), Data); + if (status < 0) { + dbg("Writing DCR0 failed status-0x%x\n", status); + break; + } else + dbg("DCR0 Writing success status%d\n", status); + + Data = 0x05; + status = 0; + status = + mos7840_set_reg_sync(serial->port[i], + (__u16) (mos7840_port->DcrRegOffset + + 1), Data); + if (status < 0) { + dbg("Writing DCR1 failed status-0x%x\n", status); + break; + } else + dbg("DCR1 Writing success status%d\n", status); + + Data = 0x24; + status = 0; + status = + mos7840_set_reg_sync(serial->port[i], + (__u16) (mos7840_port->DcrRegOffset + + 2), Data); + if (status < 0) { + dbg("Writing DCR2 failed status-0x%x\n", status); + break; + } else + dbg("DCR2 Writing success status%d\n", status); + + // write values in clkstart0x0 and clkmulti 0x20 + Data = 0x0; + status = 0; + status = + mos7840_set_reg_sync(serial->port[i], + CLK_START_VALUE_REGISTER, Data); + if (status < 0) { + dbg("Writing CLK_START_VALUE_REGISTER failed status-0x%x\n", status); + break; + } else + dbg("CLK_START_VALUE_REGISTER Writing success status%d\n", status); + + Data = 0x20; + status = 0; + status = + mos7840_set_reg_sync(serial->port[i], CLK_MULTI_REGISTER, + Data); + if (status < 0) { + dbg("Writing CLK_MULTI_REGISTER failed status-0x%x\n", + status); + break; + } else + dbg("CLK_MULTI_REGISTER Writing success status%d\n", + status); + + //write value 0x0 to scratchpad register + Data = 0x00; + status = 0; + status = + mos7840_set_uart_reg(serial->port[i], SCRATCH_PAD_REGISTER, + Data); + if (status < 0) { + dbg("Writing SCRATCH_PAD_REGISTER failed status-0x%x\n", + status); + break; + } else + dbg("SCRATCH_PAD_REGISTER Writing success status%d\n", + status); + + //Zero Length flag register + if ((mos7840_port->port_num != 1) + && (mos7840_num_ports == 2)) { + + Data = 0xff; + status = 0; + status = mos7840_set_reg_sync(serial->port[i], + (__u16) (ZLP_REG1 + + ((__u16) + mos7840_port-> + port_num)), + Data); + dbg("ZLIP offset%x\n", + (__u16) (ZLP_REG1 + + ((__u16) mos7840_port->port_num))); + if (status < 0) { + dbg("Writing ZLP_REG%d failed status-0x%x\n", + i + 2, status); + break; + } else + dbg("ZLP_REG%d Writing success status%d\n", + i + 2, status); + } else { + Data = 0xff; + status = 0; + status = mos7840_set_reg_sync(serial->port[i], + (__u16) (ZLP_REG1 + + ((__u16) + mos7840_port-> + port_num) - + 0x1), Data); + dbg("ZLIP offset%x\n", + (__u16) (ZLP_REG1 + + ((__u16) mos7840_port->port_num) - 0x1)); + if (status < 0) { + dbg("Writing ZLP_REG%d failed status-0x%x\n", + i + 1, status); + break; + } else + dbg("ZLP_REG%d Writing success status%d\n", + i + 1, status); + + } + mos7840_port->control_urb = usb_alloc_urb(0, SLAB_ATOMIC); + mos7840_port->ctrl_buf = kmalloc(16, GFP_KERNEL); + + } + + //Zero Length flag enable + Data = 0x0f; + status = 0; + status = mos7840_set_reg_sync(serial->port[0], ZLP_REG5, Data); + if (status < 0) { + dbg("Writing ZLP_REG5 failed status-0x%x\n", status); + return -1; + } else + dbg("ZLP_REG5 Writing success status%d\n", status); + + /* setting configuration feature to one */ + usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), + (__u8) 0x03, 0x00, 0x01, 0x00, 0x00, 0x00, 5 * HZ); + return 0; +} + +/**************************************************************************** + * mos7840_shutdown + * This function is called whenever the device is removed from the usb bus. + ****************************************************************************/ + +static void mos7840_shutdown(struct usb_serial *serial) +{ + int i; + struct moschip_port *mos7840_port; + dbg("%s \n", " shutdown :entering.........."); + + if (!serial) { + dbg("%s", "Invalid Handler \n"); + return; + } + + /* check for the ports to be closed,close the ports and disconnect */ + + /* free private structure allocated for serial port * + * stop reads and writes on all ports */ + + for (i = 0; i < serial->num_ports; ++i) { + mos7840_port = mos7840_get_port_private(serial->port[i]); + kfree(mos7840_port->ctrl_buf); + usb_kill_urb(mos7840_port->control_urb); + kfree(mos7840_port); + mos7840_set_port_private(serial->port[i], NULL); + } + + dbg("%s\n", "Thank u :: "); + +} + +static struct usb_serial_driver moschip7840_4port_device = { + .driver = { + .owner = THIS_MODULE, + .name = "mos7840", + }, + .description = DRIVER_DESC, + .id_table = moschip_port_id_table, + .num_interrupt_in = 1, //NUM_DONT_CARE,//1, +#ifdef check + .num_bulk_in = 4, + .num_bulk_out = 4, + .num_ports = 4, +#endif + .open = mos7840_open, + .close = mos7840_close, + .write = mos7840_write, + .write_room = mos7840_write_room, + .chars_in_buffer = mos7840_chars_in_buffer, + .throttle = mos7840_throttle, + .unthrottle = mos7840_unthrottle, + .calc_num_ports = mos7840_calc_num_ports, +#ifdef MCSSerialProbe + .probe = mos7840_serial_probe, +#endif + .ioctl = mos7840_ioctl, + .set_termios = mos7840_set_termios, + .break_ctl = mos7840_break, + .tiocmget = mos7840_tiocmget, + .tiocmset = mos7840_tiocmset, + .attach = mos7840_startup, + .shutdown = mos7840_shutdown, + .read_bulk_callback = mos7840_bulk_in_callback, + .read_int_callback = mos7840_interrupt_callback, +}; + +static struct usb_driver io_driver = { + .name = "mos7840", + .probe = usb_serial_probe, + .disconnect = usb_serial_disconnect, + .id_table = moschip_id_table_combined, +}; + +/**************************************************************************** + * moschip7840_init + * This is called by the module subsystem, or on startup to initialize us + ****************************************************************************/ +static int __init moschip7840_init(void) +{ + int retval; + + dbg("%s \n", " mos7840_init :entering.........."); + + /* Register with the usb serial */ + retval = usb_serial_register(&moschip7840_4port_device); + + if (retval) + goto failed_port_device_register; + + dbg("%s\n", "Entring..."); + info(DRIVER_DESC " " DRIVER_VERSION); + + /* Register with the usb */ + retval = usb_register(&io_driver); + + if (retval) + goto failed_usb_register; + + if (retval == 0) { + dbg("%s\n", "Leaving..."); + return 0; + } + + failed_usb_register: + usb_serial_deregister(&moschip7840_4port_device); + + failed_port_device_register: + + return retval; +} + +/**************************************************************************** + * moschip7840_exit + * Called when the driver is about to be unloaded. + ****************************************************************************/ +static void __exit moschip7840_exit(void) +{ + + dbg("%s \n", " mos7840_exit :entering.........."); + + usb_deregister(&io_driver); + + usb_serial_deregister(&moschip7840_4port_device); + + dbg("%s\n", "Entring..."); +} + +module_init(moschip7840_init); +module_exit(moschip7840_exit); + +/* Module information */ +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); + +module_param(debug, bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(debug, "Debug enabled or not");
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 65e4d04..1036d43 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c
@@ -81,10 +81,11 @@ { USB_DEVICE(SPEEDDRAGON_VENDOR_ID, SPEEDDRAGON_PRODUCT_ID) }, { USB_DEVICE(DATAPILOT_U2_VENDOR_ID, DATAPILOT_U2_PRODUCT_ID) }, { USB_DEVICE(BELKIN_VENDOR_ID, BELKIN_PRODUCT_ID) }, + { USB_DEVICE(ALCOR_VENDOR_ID, ALCOR_PRODUCT_ID) }, { } /* Terminating entry */ }; -MODULE_DEVICE_TABLE (usb, id_table); +MODULE_DEVICE_TABLE(usb, id_table); static struct usb_driver pl2303_driver = { .name = "pl2303", @@ -127,65 +128,6 @@ #define UART_OVERRUN_ERROR 0x40 #define UART_CTS 0x80 -/* function prototypes for a PL2303 serial converter */ -static int pl2303_open (struct usb_serial_port *port, struct file *filp); -static void pl2303_close (struct usb_serial_port *port, struct file *filp); -static void pl2303_set_termios (struct usb_serial_port *port, - struct termios *old); -static int pl2303_ioctl (struct usb_serial_port *port, struct file *file, - unsigned int cmd, unsigned long arg); -static void pl2303_read_int_callback (struct urb *urb, struct pt_regs *regs); -static void pl2303_read_bulk_callback (struct urb *urb, struct pt_regs *regs); -static void pl2303_write_bulk_callback (struct urb *urb, struct pt_regs *regs); -static int pl2303_write (struct usb_serial_port *port, - const unsigned char *buf, int count); -static void pl2303_send (struct usb_serial_port *port); -static int pl2303_write_room(struct usb_serial_port *port); -static int pl2303_chars_in_buffer(struct usb_serial_port *port); -static void pl2303_break_ctl(struct usb_serial_port *port,int break_state); -static int pl2303_tiocmget (struct usb_serial_port *port, struct file *file); -static int pl2303_tiocmset (struct usb_serial_port *port, struct file *file, - unsigned int set, unsigned int clear); -static int pl2303_startup (struct usb_serial *serial); -static void pl2303_shutdown (struct usb_serial *serial); -static struct pl2303_buf *pl2303_buf_alloc(unsigned int size); -static void pl2303_buf_free(struct pl2303_buf *pb); -static void pl2303_buf_clear(struct pl2303_buf *pb); -static unsigned int pl2303_buf_data_avail(struct pl2303_buf *pb); -static unsigned int pl2303_buf_space_avail(struct pl2303_buf *pb); -static unsigned int pl2303_buf_put(struct pl2303_buf *pb, const char *buf, - unsigned int count); -static unsigned int pl2303_buf_get(struct pl2303_buf *pb, char *buf, - unsigned int count); - - -/* All of the device info needed for the PL2303 SIO serial converter */ -static struct usb_serial_driver pl2303_device = { - .driver = { - .owner = THIS_MODULE, - .name = "pl2303", - }, - .id_table = id_table, - .num_interrupt_in = NUM_DONT_CARE, - .num_bulk_in = 1, - .num_bulk_out = 1, - .num_ports = 1, - .open = pl2303_open, - .close = pl2303_close, - .write = pl2303_write, - .ioctl = pl2303_ioctl, - .break_ctl = pl2303_break_ctl, - .set_termios = pl2303_set_termios, - .tiocmget = pl2303_tiocmget, - .tiocmset = pl2303_tiocmset, - .read_bulk_callback = pl2303_read_bulk_callback, - .read_int_callback = pl2303_read_int_callback, - .write_bulk_callback = pl2303_write_bulk_callback, - .write_room = pl2303_write_room, - .chars_in_buffer = pl2303_chars_in_buffer, - .attach = pl2303_startup, - .shutdown = pl2303_shutdown, -}; enum pl2303_type { type_0, /* don't know the difference between type 0 and */ @@ -204,8 +146,166 @@ enum pl2303_type type; }; +/* + * pl2303_buf_alloc + * + * Allocate a circular buffer and all associated memory. + */ +static struct pl2303_buf *pl2303_buf_alloc(unsigned int size) +{ + struct pl2303_buf *pb; -static int pl2303_startup (struct usb_serial *serial) + if (size == 0) + return NULL; + + pb = (struct pl2303_buf *)kmalloc(sizeof(struct pl2303_buf), GFP_KERNEL); + if (pb == NULL) + return NULL; + + pb->buf_buf = kmalloc(size, GFP_KERNEL); + if (pb->buf_buf == NULL) { + kfree(pb); + return NULL; + } + + pb->buf_size = size; + pb->buf_get = pb->buf_put = pb->buf_buf; + + return pb; +} + +/* + * pl2303_buf_free + * + * Free the buffer and all associated memory. + */ +static void pl2303_buf_free(struct pl2303_buf *pb) +{ + if (pb) { + kfree(pb->buf_buf); + kfree(pb); + } +} + +/* + * pl2303_buf_clear + * + * Clear out all data in the circular buffer. + */ +static void pl2303_buf_clear(struct pl2303_buf *pb) +{ + if (pb != NULL) + pb->buf_get = pb->buf_put; + /* equivalent to a get of all data available */ +} + +/* + * pl2303_buf_data_avail + * + * Return the number of bytes of data available in the circular + * buffer. + */ +static unsigned int pl2303_buf_data_avail(struct pl2303_buf *pb) +{ + if (pb == NULL) + return 0; + + return ((pb->buf_size + pb->buf_put - pb->buf_get) % pb->buf_size); +} + +/* + * pl2303_buf_space_avail + * + * Return the number of bytes of space available in the circular + * buffer. + */ +static unsigned int pl2303_buf_space_avail(struct pl2303_buf *pb) +{ + if (pb == NULL) + return 0; + + return ((pb->buf_size + pb->buf_get - pb->buf_put - 1) % pb->buf_size); +} + +/* + * pl2303_buf_put + * + * Copy data data from a user buffer and put it into the circular buffer. + * Restrict to the amount of space available. + * + * Return the number of bytes copied. + */ +static unsigned int pl2303_buf_put(struct pl2303_buf *pb, const char *buf, + unsigned int count) +{ + unsigned int len; + + if (pb == NULL) + return 0; + + len = pl2303_buf_space_avail(pb); + if (count > len) + count = len; + + if (count == 0) + return 0; + + len = pb->buf_buf + pb->buf_size - pb->buf_put; + if (count > len) { + memcpy(pb->buf_put, buf, len); + memcpy(pb->buf_buf, buf+len, count - len); + pb->buf_put = pb->buf_buf + count - len; + } else { + memcpy(pb->buf_put, buf, count); + if (count < len) + pb->buf_put += count; + else /* count == len */ + pb->buf_put = pb->buf_buf; + } + + return count; +} + +/* + * pl2303_buf_get + * + * Get data from the circular buffer and copy to the given buffer. + * Restrict to the amount of data available. + * + * Return the number of bytes copied. + */ +static unsigned int pl2303_buf_get(struct pl2303_buf *pb, char *buf, + unsigned int count) +{ + unsigned int len; + + if (pb == NULL) + return 0; + + len = pl2303_buf_data_avail(pb); + if (count > len) + count = len; + + if (count == 0) + return 0; + + len = pb->buf_buf + pb->buf_size - pb->buf_get; + if (count > len) { + memcpy(buf, pb->buf_get, len); + memcpy(buf+len, pb->buf_buf, count - len); + pb->buf_get = pb->buf_buf + count - len; + } else { + memcpy(buf, pb->buf_get, count); + if (count < len) + pb->buf_get += count; + else /* count == len */ + pb->buf_get = pb->buf_buf; + } + + return count; +} + +static int pl2303_startup(struct usb_serial *serial) { struct pl2303_private *priv; enum pl2303_type type = type_0; @@ -247,36 +347,17 @@ return -ENOMEM; } -static int set_control_lines (struct usb_device *dev, u8 value) +static int set_control_lines(struct usb_device *dev, u8 value) { int retval; - retval = usb_control_msg (dev, usb_sndctrlpipe (dev, 0), - SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE, - value, 0, NULL, 0, 100); + retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), + SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE, + value, 0, NULL, 0, 100); dbg("%s - value = %d, retval = %d", __FUNCTION__, value, retval); return retval; } -static int pl2303_write (struct usb_serial_port *port, const unsigned char *buf, int count) -{ - struct pl2303_private *priv = usb_get_serial_port_data(port); - unsigned long flags; - - dbg("%s - port %d, %d bytes", __FUNCTION__, port->number, count); - - if (!count) - return count; - - spin_lock_irqsave(&priv->lock, flags); - count = pl2303_buf_put(priv->buf, buf, count); - spin_unlock_irqrestore(&priv->lock, flags); - - pl2303_send(port); - - return count; -} - static void pl2303_send(struct usb_serial_port *port) { int count, result; @@ -293,7 +374,7 @@ } count = pl2303_buf_get(priv->buf, port->write_urb->transfer_buffer, - port->bulk_out_size); + port->bulk_out_size); if (count == 0) { spin_unlock_irqrestore(&priv->lock, flags); @@ -304,13 +385,15 @@ spin_unlock_irqrestore(&priv->lock, flags); - usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, port->write_urb->transfer_buffer); + usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count, + port->write_urb->transfer_buffer); port->write_urb->transfer_buffer_length = count; port->write_urb->dev = port->serial->dev; - result = usb_submit_urb (port->write_urb, GFP_ATOMIC); + result = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (result) { - dev_err(&port->dev, "%s - failed submitting write urb, error %d\n", __FUNCTION__, result); + dev_err(&port->dev, "%s - failed submitting write urb," + " error %d\n", __FUNCTION__, result); priv->write_urb_in_use = 0; // TODO: reschedule pl2303_send } @@ -318,6 +401,26 @@ usb_serial_port_softint(port); } +static int pl2303_write(struct usb_serial_port *port, const unsigned char *buf, + int count) +{ + struct pl2303_private *priv = usb_get_serial_port_data(port); + unsigned long flags; + + dbg("%s - port %d, %d bytes", __FUNCTION__, port->number, count); + + if (!count) + return count; + + spin_lock_irqsave(&priv->lock, flags); + count = pl2303_buf_put(priv->buf, buf, count); + spin_unlock_irqrestore(&priv->lock, flags); + + pl2303_send(port); + + return count; +} + static int pl2303_write_room(struct usb_serial_port *port) { struct pl2303_private *priv = usb_get_serial_port_data(port); @@ -350,7 +453,8 @@ return chars; } -static void pl2303_set_termios (struct usb_serial_port *port, struct termios *old_termios) +static void pl2303_set_termios(struct usb_serial_port *port, + struct termios *old_termios) { struct usb_serial *serial = port->serial; struct pl2303_private *priv = usb_get_serial_port_data(port); @@ -371,7 +475,8 @@ spin_lock_irqsave(&priv->lock, flags); if (!priv->termios_initialized) { *(port->tty->termios) = tty_std_termios; - port->tty->termios->c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; + port->tty->termios->c_cflag = B9600 | CS8 | CREAD | + HUPCL | CLOCAL; priv->termios_initialized = 1; } spin_unlock_irqrestore(&priv->lock, flags); @@ -380,24 +485,24 @@ /* check that they really want us to change something */ if (old_termios) { if ((cflag == old_termios->c_cflag) && - (RELEVANT_IFLAG(port->tty->termios->c_iflag) == RELEVANT_IFLAG(old_termios->c_iflag))) { - dbg("%s - nothing to change...", __FUNCTION__); - return; + (RELEVANT_IFLAG(port->tty->termios->c_iflag) == + RELEVANT_IFLAG(old_termios->c_iflag))) { + dbg("%s - nothing to change...", __FUNCTION__); + return; } } - buf = kzalloc (7, GFP_KERNEL); + buf = kzalloc(7, GFP_KERNEL); if (!buf) { dev_err(&port->dev, "%s - out of memory.\n", __FUNCTION__); return; } - - i = usb_control_msg (serial->dev, usb_rcvctrlpipe (serial->dev, 0), - GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, - 0, 0, buf, 7, 100); - dbg ("0xa1:0x21:0:0 %d - %x %x %x %x %x %x %x", i, - buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]); + i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), + GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, + 0, 0, buf, 7, 100); + dbg("0xa1:0x21:0:0 %d - %x %x %x %x %x %x %x", i, + buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]); if (cflag & CSIZE) { switch (cflag & CSIZE) { @@ -429,7 +534,8 @@ case B230400: baud = 230400; break; case B460800: baud = 460800; break; default: - dev_err(&port->dev, "pl2303 driver does not support the baudrate requested (fix it)\n"); + dev_err(&port->dev, "pl2303 driver does not support" + " the baudrate requested (fix it)\n"); break; } dbg("%s - baud = %d", __FUNCTION__, baud); @@ -469,10 +575,10 @@ dbg("%s - parity = none", __FUNCTION__); } - i = usb_control_msg (serial->dev, usb_sndctrlpipe (serial->dev, 0), - SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE, - 0, 0, buf, 7, 100); - dbg ("0x21:0x20:0:0 %d", i); + i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), + SET_LINE_REQUEST, SET_LINE_REQUEST_TYPE, + 0, 0, buf, 7, 100); + dbg("0x21:0x20:0:0 %d", i); /* change control lines if we are switching to or from B0 */ spin_lock_irqsave(&priv->lock, flags); @@ -488,13 +594,13 @@ } else { spin_unlock_irqrestore(&priv->lock, flags); } - + buf[0] = buf[1] = buf[2] = buf[3] = buf[4] = buf[5] = buf[6] = 0; - i = usb_control_msg (serial->dev, usb_rcvctrlpipe (serial->dev, 0), - GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, - 0, 0, buf, 7, 100); - dbg ("0xa1:0x21:0:0 %d - %x %x %x %x %x %x %x", i, + i = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), + GET_LINE_REQUEST, GET_LINE_REQUEST_TYPE, + 0, 0, buf, 7, 100); + dbg("0xa1:0x21:0:0 %d - %x %x %x %x %x %x %x", i, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]); if (cflag & CRTSCTS) { @@ -503,18 +609,82 @@ index = 0x61; else index = 0x41; - i = usb_control_msg(serial->dev, + i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), VENDOR_WRITE_REQUEST, VENDOR_WRITE_REQUEST_TYPE, 0x0, index, NULL, 0, 100); - dbg ("0x40:0x1:0x0:0x%x %d", index, i); + dbg("0x40:0x1:0x0:0x%x %d", index, i); } - kfree (buf); + kfree(buf); } -static int pl2303_open (struct usb_serial_port *port, struct file *filp) +static void pl2303_close(struct usb_serial_port *port, struct file *filp) +{ + struct pl2303_private *priv = usb_get_serial_port_data(port); + unsigned long flags; + unsigned int c_cflag; + int bps; + long timeout; + wait_queue_t wait; + + dbg("%s - port %d", __FUNCTION__, port->number); + + /* wait for data to drain from the buffer */ + spin_lock_irqsave(&priv->lock, flags); + timeout = PL2303_CLOSING_WAIT; + init_waitqueue_entry(&wait, current); + add_wait_queue(&port->tty->write_wait, &wait); + for (;;) { + set_current_state(TASK_INTERRUPTIBLE); + if (pl2303_buf_data_avail(priv->buf) == 0 || + timeout == 0 || signal_pending(current) || + !usb_get_intfdata(port->serial->interface)) /* disconnect */ + break; + spin_unlock_irqrestore(&priv->lock, flags); + timeout = schedule_timeout(timeout); + spin_lock_irqsave(&priv->lock, flags); + } + set_current_state(TASK_RUNNING); + remove_wait_queue(&port->tty->write_wait, &wait); + /* clear out any remaining data in the buffer */ + pl2303_buf_clear(priv->buf); + spin_unlock_irqrestore(&priv->lock, flags); + + /* wait for characters to drain from the device */ + /* (this is long enough for the entire 256 byte */ + /* pl2303 hardware buffer to drain with no flow */ + /* control for data rates of 1200 bps or more, */ + /* for lower rates we should really know how much */ + /* data is in the buffer to compute a delay */ + /* that is not unnecessarily long) */ + bps = tty_get_baud_rate(port->tty); + if (bps > 1200) + timeout = max((HZ*2560)/bps,HZ/10); + else + timeout = 2*HZ; + schedule_timeout_interruptible(timeout); + + /* shutdown our urbs */ + dbg("%s - shutting down urbs", __FUNCTION__); + usb_kill_urb(port->write_urb); + usb_kill_urb(port->read_urb); + usb_kill_urb(port->interrupt_in_urb); + + if (port->tty) { + c_cflag = port->tty->termios->c_cflag; + if (c_cflag & HUPCL) { + /* drop DTR and RTS */ + spin_lock_irqsave(&priv->lock, flags); + priv->line_control = 0; + spin_unlock_irqrestore(&priv->lock, flags); + set_control_lines(port->serial->dev, 0); + } + } +} + +static int pl2303_open(struct usb_serial_port *port, struct file *filp) { struct termios tmp_termios; struct usb_serial *serial = port->serial; @@ -568,98 +738,35 @@ /* Setup termios */ if (port->tty) { - pl2303_set_termios (port, &tmp_termios); + pl2303_set_termios(port, &tmp_termios); } //FIXME: need to assert RTS and DTR if CRTSCTS off dbg("%s - submitting read urb", __FUNCTION__); port->read_urb->dev = serial->dev; - result = usb_submit_urb (port->read_urb, GFP_KERNEL); + result = usb_submit_urb(port->read_urb, GFP_KERNEL); if (result) { - dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", __FUNCTION__, result); - pl2303_close (port, NULL); + dev_err(&port->dev, "%s - failed submitting read urb," + " error %d\n", __FUNCTION__, result); + pl2303_close(port, NULL); return -EPROTO; } dbg("%s - submitting interrupt urb", __FUNCTION__); port->interrupt_in_urb->dev = serial->dev; - result = usb_submit_urb (port->interrupt_in_urb, GFP_KERNEL); + result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (result) { - dev_err(&port->dev, "%s - failed submitting interrupt urb, error %d\n", __FUNCTION__, result); - pl2303_close (port, NULL); + dev_err(&port->dev, "%s - failed submitting interrupt urb," + " error %d\n", __FUNCTION__, result); + pl2303_close(port, NULL); return -EPROTO; } return 0; } - -static void pl2303_close (struct usb_serial_port *port, struct file *filp) -{ - struct pl2303_private *priv = usb_get_serial_port_data(port); - unsigned long flags; - unsigned int c_cflag; - int bps; - long timeout; - wait_queue_t wait; - - dbg("%s - port %d", __FUNCTION__, port->number); - - /* wait for data to drain from the buffer */ - spin_lock_irqsave(&priv->lock, flags); - timeout = PL2303_CLOSING_WAIT; - init_waitqueue_entry(&wait, current); - add_wait_queue(&port->tty->write_wait, &wait); - for (;;) { - set_current_state(TASK_INTERRUPTIBLE); - if (pl2303_buf_data_avail(priv->buf) == 0 - || timeout == 0 || signal_pending(current) - || !usb_get_intfdata(port->serial->interface)) /* disconnect */ - break; - spin_unlock_irqrestore(&priv->lock, flags); - timeout = schedule_timeout(timeout); - spin_lock_irqsave(&priv->lock, flags); - } - set_current_state(TASK_RUNNING); - remove_wait_queue(&port->tty->write_wait, &wait); - /* clear out any remaining data in the buffer */ - pl2303_buf_clear(priv->buf); - spin_unlock_irqrestore(&priv->lock, flags); - - /* wait for characters to drain from the device */ - /* (this is long enough for the entire 256 byte */ - /* pl2303 hardware buffer to drain with no flow */ - /* control for data rates of 1200 bps or more, */ - /* for lower rates we should really know how much */ - /* data is in the buffer to compute a delay */ - /* that is not unnecessarily long) */ - bps = tty_get_baud_rate(port->tty); - if (bps > 1200) - timeout = max((HZ*2560)/bps,HZ/10); - else - timeout = 2*HZ; - schedule_timeout_interruptible(timeout); - - /* shutdown our urbs */ - dbg("%s - shutting down urbs", __FUNCTION__); - usb_kill_urb(port->write_urb); - usb_kill_urb(port->read_urb); - usb_kill_urb(port->interrupt_in_urb); - - if (port->tty) { - c_cflag = port->tty->termios->c_cflag; - if (c_cflag & HUPCL) { - /* drop DTR and RTS */ - spin_lock_irqsave(&priv->lock, flags); - priv->line_control = 0; - spin_unlock_irqrestore (&priv->lock, flags); - set_control_lines (port->serial->dev, 0); - } - } -} - -static int pl2303_tiocmset (struct usb_serial_port *port, struct file *file, - unsigned int set, unsigned int clear) +static int pl2303_tiocmset(struct usb_serial_port *port, struct file *file, + unsigned int set, unsigned int clear) { struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -668,7 +775,7 @@ if (!usb_get_intfdata(port->serial->interface)) return -ENODEV; - spin_lock_irqsave (&priv->lock, flags); + spin_lock_irqsave(&priv->lock, flags); if (set & TIOCM_RTS) priv->line_control |= CONTROL_RTS; if (set & TIOCM_DTR) @@ -678,12 +785,12 @@ if (clear & TIOCM_DTR) priv->line_control &= ~CONTROL_DTR; control = priv->line_control; - spin_unlock_irqrestore (&priv->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags); - return set_control_lines (port->serial->dev, control); + return set_control_lines(port->serial->dev, control); } -static int pl2303_tiocmget (struct usb_serial_port *port, struct file *file) +static int pl2303_tiocmget(struct usb_serial_port *port, struct file *file) { struct pl2303_private *priv = usb_get_serial_port_data(port); unsigned long flags; @@ -696,10 +803,10 @@ if (!usb_get_intfdata(port->serial->interface)) return -ENODEV; - spin_lock_irqsave (&priv->lock, flags); + spin_lock_irqsave(&priv->lock, flags); mcr = priv->line_control; status = priv->line_status; - spin_unlock_irqrestore (&priv->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags); result = ((mcr & CONTROL_DTR) ? TIOCM_DTR : 0) | ((mcr & CONTROL_RTS) ? TIOCM_RTS : 0) @@ -721,22 +828,22 @@ unsigned int status; unsigned int changed; - spin_lock_irqsave (&priv->lock, flags); + spin_lock_irqsave(&priv->lock, flags); prevstatus = priv->line_status; - spin_unlock_irqrestore (&priv->lock, flags); + spin_unlock_irqrestore(&priv->lock, flags); while (1) { interruptible_sleep_on(&priv->delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; - - spin_lock_irqsave (&priv->lock, flags); + + spin_lock_irqsave(&priv->lock, flags); status = priv->line_status; - spin_unlock_irqrestore (&priv->lock, flags); - + spin_unlock_irqrestore(&priv->lock, flags); + changed=prevstatus^status; - + if (((arg & TIOCM_RNG) && (changed & UART_RING)) || ((arg & TIOCM_DSR) && (changed & UART_DSR)) || ((arg & TIOCM_CD) && (changed & UART_DCD)) || @@ -749,7 +856,8 @@ return 0; } -static int pl2303_ioctl (struct usb_serial_port *port, struct file *file, unsigned int cmd, unsigned long arg) +static int pl2303_ioctl(struct usb_serial_port *port, struct file *file, + unsigned int cmd, unsigned long arg) { dbg("%s (%d) cmd = 0x%04x", __FUNCTION__, port->number, cmd); @@ -766,7 +874,7 @@ return -ENOIOCTLCMD; } -static void pl2303_break_ctl (struct usb_serial_port *port, int break_state) +static void pl2303_break_ctl(struct usb_serial_port *port, int break_state) { struct usb_serial *serial = port->serial; u16 state; @@ -780,15 +888,14 @@ state = BREAK_ON; dbg("%s - turning break %s", __FUNCTION__, state==BREAK_OFF ? "off" : "on"); - result = usb_control_msg (serial->dev, usb_sndctrlpipe (serial->dev, 0), - BREAK_REQUEST, BREAK_REQUEST_TYPE, state, - 0, NULL, 0, 100); + result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), + BREAK_REQUEST, BREAK_REQUEST_TYPE, state, + 0, NULL, 0, 100); if (result) dbg("%s - error sending break = %d", __FUNCTION__, result); } - -static void pl2303_shutdown (struct usb_serial *serial) +static void pl2303_shutdown(struct usb_serial *serial) { int i; struct pl2303_private *priv; @@ -802,7 +909,7 @@ kfree(priv); usb_set_serial_port_data(serial->port[i], NULL); } - } + } } static void pl2303_update_line_status(struct usb_serial_port *port, @@ -814,29 +921,33 @@ unsigned long flags; u8 status_idx = UART_STATE; u8 length = UART_STATE + 1; + u16 idv, idp; - if ((le16_to_cpu(port->serial->dev->descriptor.idVendor) == SIEMENS_VENDOR_ID) && - (le16_to_cpu(port->serial->dev->descriptor.idProduct) == SIEMENS_PRODUCT_ID_X65 || - le16_to_cpu(port->serial->dev->descriptor.idProduct) == SIEMENS_PRODUCT_ID_SX1 || - le16_to_cpu(port->serial->dev->descriptor.idProduct) == SIEMENS_PRODUCT_ID_X75)) { - length = 1; - status_idx = 0; + idv = le16_to_cpu(port->serial->dev->descriptor.idVendor); + idp = le16_to_cpu(port->serial->dev->descriptor.idProduct); + + + if (idv == SIEMENS_VENDOR_ID) { + if (idp == SIEMENS_PRODUCT_ID_X65 || + idp == SIEMENS_PRODUCT_ID_SX1 || + idp == SIEMENS_PRODUCT_ID_X75) { + + length = 1; + status_idx = 0; + } } if (actual_length < length) - goto exit; + return; /* Save off the uart status for others to look at */ spin_lock_irqsave(&priv->lock, flags); priv->line_status = data[status_idx]; spin_unlock_irqrestore(&priv->lock, flags); - wake_up_interruptible (&priv->delta_msr_wait); - -exit: - return; + wake_up_interruptible(&priv->delta_msr_wait); } -static void pl2303_read_int_callback (struct urb *urb, struct pt_regs *regs) +static void pl2303_read_int_callback(struct urb *urb, struct pt_regs *regs) { struct usb_serial_port *port = (struct usb_serial_port *) urb->context; unsigned char *data = urb->transfer_buffer; @@ -853,25 +964,29 @@ case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", __FUNCTION__, + urb->status); return; default: - dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status); + dbg("%s - nonzero urb status received: %d", __FUNCTION__, + urb->status); goto exit; } - usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, urb->transfer_buffer); + usb_serial_debug_data(debug, &port->dev, __FUNCTION__, + urb->actual_length, urb->transfer_buffer); + pl2303_update_line_status(port, data, actual_length); exit: - status = usb_submit_urb (urb, GFP_ATOMIC); + status = usb_submit_urb(urb, GFP_ATOMIC); if (status) - dev_err(&urb->dev->dev, "%s - usb_submit_urb failed with result %d\n", + dev_err(&urb->dev->dev, + "%s - usb_submit_urb failed with result %d\n", __FUNCTION__, status); } - -static void pl2303_read_bulk_callback (struct urb *urb, struct pt_regs *regs) +static void pl2303_read_bulk_callback(struct urb *urb, struct pt_regs *regs) { struct usb_serial_port *port = (struct usb_serial_port *) urb->context; struct pl2303_private *priv = usb_get_serial_port_data(port); @@ -892,20 +1007,25 @@ return; } if (urb->status == -EPROTO) { - /* PL2303 mysteriously fails with -EPROTO reschedule the read */ - dbg("%s - caught -EPROTO, resubmitting the urb", __FUNCTION__); + /* PL2303 mysteriously fails with -EPROTO reschedule + * the read */ + dbg("%s - caught -EPROTO, resubmitting the urb", + __FUNCTION__); urb->status = 0; urb->dev = port->serial->dev; result = usb_submit_urb(urb, GFP_ATOMIC); if (result) - dev_err(&urb->dev->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result); + dev_err(&urb->dev->dev, "%s - failed" + " resubmitting read urb, error %d\n", + __FUNCTION__, result); return; } dbg("%s - unable to handle the error, exiting.", __FUNCTION__); return; } - usb_serial_debug_data(debug, &port->dev, __FUNCTION__, urb->actual_length, data); + usb_serial_debug_data(debug, &port->dev, __FUNCTION__, + urb->actual_length, data); /* get tty_flag from status */ tty_flag = TTY_NORMAL; @@ -914,7 +1034,7 @@ status = priv->line_status; priv->line_status &= ~UART_STATE_TRANSIENT_MASK; spin_unlock_irqrestore(&priv->lock, flags); - wake_up_interruptible (&priv->delta_msr_wait); + wake_up_interruptible(&priv->delta_msr_wait); /* break takes precedence over parity, */ /* which takes precedence over framing errors */ @@ -933,8 +1053,8 @@ if (status & UART_OVERRUN_ERROR) tty_insert_flip_char(tty, 0, TTY_OVERRUN); for (i = 0; i < urb->actual_length; ++i) - tty_insert_flip_char (tty, data[i], tty_flag); - tty_flip_buffer_push (tty); + tty_insert_flip_char(tty, data[i], tty_flag); + tty_flip_buffer_push(tty); } /* Schedule the next read _if_ we are still open */ @@ -942,15 +1062,14 @@ urb->dev = port->serial->dev; result = usb_submit_urb(urb, GFP_ATOMIC); if (result) - dev_err(&urb->dev->dev, "%s - failed resubmitting read urb, error %d\n", __FUNCTION__, result); + dev_err(&urb->dev->dev, "%s - failed resubmitting" + " read urb, error %d\n", __FUNCTION__, result); } return; } - - -static void pl2303_write_bulk_callback (struct urb *urb, struct pt_regs *regs) +static void pl2303_write_bulk_callback(struct urb *urb, struct pt_regs *regs) { struct usb_serial_port *port = (struct usb_serial_port *) urb->context; struct pl2303_private *priv = usb_get_serial_port_data(port); @@ -966,18 +1085,21 @@ case -ENOENT: case -ESHUTDOWN: /* this urb is terminated, clean up */ - dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status); + dbg("%s - urb shutting down with status: %d", __FUNCTION__, + urb->status); priv->write_urb_in_use = 0; return; default: /* error in the urb, so we have to resubmit it */ dbg("%s - Overflow in write", __FUNCTION__); - dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); + dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, + urb->status); port->write_urb->transfer_buffer_length = 1; port->write_urb->dev = port->serial->dev; - result = usb_submit_urb (port->write_urb, GFP_ATOMIC); + result = usb_submit_urb(port->write_urb, GFP_ATOMIC); if (result) - dev_err(&urb->dev->dev, "%s - failed resubmitting write urb, error %d\n", __FUNCTION__, result); + dev_err(&urb->dev->dev, "%s - failed resubmitting write" + " urb, error %d\n", __FUNCTION__, result); else return; } @@ -988,191 +1110,38 @@ pl2303_send(port); } +/* All of the device info needed for the PL2303 SIO serial converter */ +static struct usb_serial_driver pl2303_device = { + .driver = { + .owner = THIS_MODULE, + .name = "pl2303", + }, + .id_table = id_table, + .num_interrupt_in = NUM_DONT_CARE, + .num_bulk_in = 1, + .num_bulk_out = 1, + .num_ports = 1, + .open = pl2303_open, + .close = pl2303_close, + .write = pl2303_write, + .ioctl = pl2303_ioctl, + .break_ctl = pl2303_break_ctl, + .set_termios = pl2303_set_termios, + .tiocmget = pl2303_tiocmget, + .tiocmset = pl2303_tiocmset, + .read_bulk_callback = pl2303_read_bulk_callback, + .read_int_callback = pl2303_read_int_callback, + .write_bulk_callback = pl2303_write_bulk_callback, + .write_room = pl2303_write_room, + .chars_in_buffer = pl2303_chars_in_buffer, + .attach = pl2303_startup, + .shutdown = pl2303_shutdown, +}; -/* - * pl2303_buf_alloc - * - * Allocate a circular buffer and all associated memory. - */ - -static struct pl2303_buf *pl2303_buf_alloc(unsigned int size) -{ - - struct pl2303_buf *pb; - - - if (size == 0) - return NULL; - - pb = (struct pl2303_buf *)kmalloc(sizeof(struct pl2303_buf), GFP_KERNEL); - if (pb == NULL) - return NULL; - - pb->buf_buf = kmalloc(size, GFP_KERNEL); - if (pb->buf_buf == NULL) { - kfree(pb); - return NULL; - } - - pb->buf_size = size; - pb->buf_get = pb->buf_put = pb->buf_buf; - - return pb; - -} - - -/* - * pl2303_buf_free - * - * Free the buffer and all associated memory. - */ - -static void pl2303_buf_free(struct pl2303_buf *pb) -{ - if (pb) { - kfree(pb->buf_buf); - kfree(pb); - } -} - - -/* - * pl2303_buf_clear - * - * Clear out all data in the circular buffer. - */ - -static void pl2303_buf_clear(struct pl2303_buf *pb) -{ - if (pb != NULL) - pb->buf_get = pb->buf_put; - /* equivalent to a get of all data available */ -} - - -/* - * pl2303_buf_data_avail - * - * Return the number of bytes of data available in the circular - * buffer. - */ - -static unsigned int pl2303_buf_data_avail(struct pl2303_buf *pb) -{ - if (pb != NULL) - return ((pb->buf_size + pb->buf_put - pb->buf_get) % pb->buf_size); - else - return 0; -} - - -/* - * pl2303_buf_space_avail - * - * Return the number of bytes of space available in the circular - * buffer. - */ - -static unsigned int pl2303_buf_space_avail(struct pl2303_buf *pb) -{ - if (pb != NULL) - return ((pb->buf_size + pb->buf_get - pb->buf_put - 1) % pb->buf_size); - else - return 0; -} - - -/* - * pl2303_buf_put - * - * Copy data data from a user buffer and put it into the circular buffer. - * Restrict to the amount of space available. - * - * Return the number of bytes copied. - */ - -static unsigned int pl2303_buf_put(struct pl2303_buf *pb, const char *buf, - unsigned int count) -{ - - unsigned int len; - - - if (pb == NULL) - return 0; - - len = pl2303_buf_space_avail(pb); - if (count > len) - count = len; - - if (count == 0) - return 0; - - len = pb->buf_buf + pb->buf_size - pb->buf_put; - if (count > len) { - memcpy(pb->buf_put, buf, len); - memcpy(pb->buf_buf, buf+len, count - len); - pb->buf_put = pb->buf_buf + count - len; - } else { - memcpy(pb->buf_put, buf, count); - if (count < len) - pb->buf_put += count; - else /* count == len */ - pb->buf_put = pb->buf_buf; - } - - return count; - -} - - -/* - * pl2303_buf_get - * - * Get data from the circular buffer and copy to the given buffer. - * Restrict to the amount of data available. - * - * Return the number of bytes copied. - */ - -static unsigned int pl2303_buf_get(struct pl2303_buf *pb, char *buf, - unsigned int count) -{ - - unsigned int len; - - - if (pb == NULL) - return 0; - - len = pl2303_buf_data_avail(pb); - if (count > len) - count = len; - - if (count == 0) - return 0; - - len = pb->buf_buf + pb->buf_size - pb->buf_get; - if (count > len) { - memcpy(buf, pb->buf_get, len); - memcpy(buf+len, pb->buf_buf, count - len); - pb->buf_get = pb->buf_buf + count - len; - } else { - memcpy(buf, pb->buf_get, count); - if (count < len) - pb->buf_get += count; - else /* count == len */ - pb->buf_get = pb->buf_buf; - } - - return count; - -} - -static int __init pl2303_init (void) +static int __init pl2303_init(void) { int retval; + retval = usb_serial_register(&pl2303_device); if (retval) goto failed_usb_serial_register; @@ -1187,14 +1156,12 @@ return retval; } - -static void __exit pl2303_exit (void) +static void __exit pl2303_exit(void) { - usb_deregister (&pl2303_driver); - usb_serial_deregister (&pl2303_device); + usb_deregister(&pl2303_driver); + usb_serial_deregister(&pl2303_device); } - module_init(pl2303_init); module_exit(pl2303_exit);
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h index 55195e7..762cc29 100644 --- a/drivers/usb/serial/pl2303.h +++ b/drivers/usb/serial/pl2303.h
@@ -89,3 +89,7 @@ /* Belkin "F5U257" Serial Adapter */ #define BELKIN_VENDOR_ID 0x050d #define BELKIN_PRODUCT_ID 0x0257 + +/* Alcor Micro Corp. USB 2.0 TO RS-232 */ +#define ALCOR_VENDOR_ID 0x058F +#define ALCOR_PRODUCT_ID 0x9720
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index e06a41b..0222d92 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c
@@ -676,33 +676,29 @@ iface_desc = interface->cur_altsetting; for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { endpoint = &iface_desc->endpoint[i].desc; - - if ((endpoint->bEndpointAddress & 0x80) && - ((endpoint->bmAttributes & 3) == 0x02)) { + + if (usb_endpoint_is_bulk_in(endpoint)) { /* we found a bulk in endpoint */ dbg("found bulk in on endpoint %d", i); bulk_in_endpoint[num_bulk_in] = endpoint; ++num_bulk_in; } - if (((endpoint->bEndpointAddress & 0x80) == 0x00) && - ((endpoint->bmAttributes & 3) == 0x02)) { + if (usb_endpoint_is_bulk_out(endpoint)) { /* we found a bulk out endpoint */ dbg("found bulk out on endpoint %d", i); bulk_out_endpoint[num_bulk_out] = endpoint; ++num_bulk_out; } - - if ((endpoint->bEndpointAddress & 0x80) && - ((endpoint->bmAttributes & 3) == 0x03)) { + + if (usb_endpoint_is_int_in(endpoint)) { /* we found a interrupt in endpoint */ dbg("found interrupt in on endpoint %d", i); interrupt_in_endpoint[num_interrupt_in] = endpoint; ++num_interrupt_in; } - if (((endpoint->bEndpointAddress & 0x80) == 0x00) && - ((endpoint->bmAttributes & 3) == 0x03)) { + if (usb_endpoint_is_int_out(endpoint)) { /* we found an interrupt out endpoint */ dbg("found interrupt out on endpoint %d", i); interrupt_out_endpoint[num_interrupt_out] = endpoint; @@ -716,14 +712,15 @@ if (((le16_to_cpu(dev->descriptor.idVendor) == PL2303_VENDOR_ID) && (le16_to_cpu(dev->descriptor.idProduct) == PL2303_PRODUCT_ID)) || ((le16_to_cpu(dev->descriptor.idVendor) == ATEN_VENDOR_ID) && - (le16_to_cpu(dev->descriptor.idProduct) == ATEN_PRODUCT_ID))) { + (le16_to_cpu(dev->descriptor.idProduct) == ATEN_PRODUCT_ID)) || + ((le16_to_cpu(dev->descriptor.idVendor) == ALCOR_VENDOR_ID) && + (le16_to_cpu(dev->descriptor.idProduct) == ALCOR_PRODUCT_ID))) { if (interface != dev->actconfig->interface[0]) { /* check out the endpoints of the other interface*/ iface_desc = dev->actconfig->interface[0]->cur_altsetting; for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { endpoint = &iface_desc->endpoint[i].desc; - if ((endpoint->bEndpointAddress & 0x80) && - ((endpoint->bmAttributes & 3) == 0x03)) { + if (usb_endpoint_is_int_in(endpoint)) { /* we found a interrupt in endpoint */ dbg("found interrupt in for Prolific device on separate interface"); interrupt_in_endpoint[num_interrupt_in] = endpoint; @@ -937,7 +934,10 @@ snprintf (&port->dev.bus_id[0], sizeof(port->dev.bus_id), "ttyUSB%d", port->number); dbg ("%s - registering %s", __FUNCTION__, port->dev.bus_id); - device_register (&port->dev); + retval = device_register(&port->dev); + if (retval) + dev_err(&port->dev, "Error registering port device, " + "continuing\n"); } usb_serial_console_init (debug, minor);
diff --git a/drivers/usb/storage/Kconfig b/drivers/usb/storage/Kconfig index be9eec2..86e48c4 100644 --- a/drivers/usb/storage/Kconfig +++ b/drivers/usb/storage/Kconfig
@@ -135,6 +135,18 @@ this input in any keybinding software. (e.g. gnome's keyboard short- cuts) +config USB_STORAGE_KARMA + bool "Support for Rio Karma music player" + depends on USB_STORAGE + help + Say Y here to include additional code to support the Rio Karma + USB interface. + + This code places the Rio Karma into mass storage mode, enabling + it to be mounted as an ordinary filesystem. Performing an eject + on the resulting scsi device node returns the Karma to normal + operation. + config USB_LIBUSUAL bool "The shared table of common (or usual) storage devices" depends on USB
diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile index 8cbba22..023969b 100644 --- a/drivers/usb/storage/Makefile +++ b/drivers/usb/storage/Makefile
@@ -20,6 +20,7 @@ usb-storage-obj-$(CONFIG_USB_STORAGE_JUMPSHOT) += jumpshot.o usb-storage-obj-$(CONFIG_USB_STORAGE_ALAUDA) += alauda.o usb-storage-obj-$(CONFIG_USB_STORAGE_ONETOUCH) += onetouch.o +usb-storage-obj-$(CONFIG_USB_STORAGE_KARMA) += karma.o usb-storage-objs := scsiglue.o protocol.o transport.o usb.o \ initializers.o $(usb-storage-obj-y)
diff --git a/drivers/usb/storage/initializers.c b/drivers/usb/storage/initializers.c index ab173b3..5b06f92 100644 --- a/drivers/usb/storage/initializers.c +++ b/drivers/usb/storage/initializers.c
@@ -45,12 +45,6 @@ #include "debug.h" #include "transport.h" -#define RIO_MSC 0x08 -#define RIOP_INIT "RIOP\x00\x01\x08" -#define RIOP_INIT_LEN 7 -#define RIO_SEND_LEN 40 -#define RIO_RECV_LEN 0x200 - /* This places the Shuttle/SCM USB<->SCSI bridge devices in multi-target * mode */ int usb_stor_euscsi_init(struct us_data *us) @@ -97,70 +91,3 @@ return (res ? -1 : 0); } - -/* Place the Rio Karma into mass storage mode. - * - * The initialization begins by sending 40 bytes starting - * RIOP\x00\x01\x08\x00, which the device will ack with a 512-byte - * packet with the high four bits set and everything else null. - * - * Next, we send RIOP\x80\x00\x08\x00. Each time, a 512 byte response - * must be read, but we must loop until byte 5 in the response is 0x08, - * indicating success. */ -int rio_karma_init(struct us_data *us) -{ - int result, partial; - char *recv; - unsigned long timeout; - - // us->iobuf is big enough to hold cmd but not receive - if (!(recv = kmalloc(RIO_RECV_LEN, GFP_KERNEL))) - goto die_nomem; - - US_DEBUGP("Initializing Karma...\n"); - - memset(us->iobuf, 0, RIO_SEND_LEN); - memcpy(us->iobuf, RIOP_INIT, RIOP_INIT_LEN); - - result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, - us->iobuf, RIO_SEND_LEN, &partial); - if (result != USB_STOR_XFER_GOOD) - goto die; - - result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, - recv, RIO_RECV_LEN, &partial); - if (result != USB_STOR_XFER_GOOD) - goto die; - - us->iobuf[4] = 0x80; - us->iobuf[5] = 0; - timeout = jiffies + msecs_to_jiffies(3000); - for (;;) { - US_DEBUGP("Sending init command\n"); - result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, - us->iobuf, RIO_SEND_LEN, &partial); - if (result != USB_STOR_XFER_GOOD) - goto die; - - result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, - recv, RIO_RECV_LEN, &partial); - if (result != USB_STOR_XFER_GOOD) - goto die; - - if (recv[5] == RIO_MSC) - break; - if (time_after(jiffies, timeout)) - goto die; - msleep(10); - } - US_DEBUGP("Karma initialized.\n"); - kfree(recv); - return 0; - -die: - kfree(recv); -die_nomem: - US_DEBUGP("Could not initialize karma.\n"); - return USB_STOR_TRANSPORT_FAILED; -} -
diff --git a/drivers/usb/storage/initializers.h b/drivers/usb/storage/initializers.h index 927f778..e2967a4 100644 --- a/drivers/usb/storage/initializers.h +++ b/drivers/usb/storage/initializers.h
@@ -47,4 +47,3 @@ /* This function is required to activate all four slots on the UCR-61S2B * flash reader */ int usb_stor_ucr61s2b_init(struct us_data *us); -int rio_karma_init(struct us_data *us);
diff --git a/drivers/usb/storage/karma.c b/drivers/usb/storage/karma.c new file mode 100644 index 0000000..0d79ae5 --- /dev/null +++ b/drivers/usb/storage/karma.c
@@ -0,0 +1,155 @@ +/* Driver for Rio Karma + * + * (c) 2006 Bob Copeland <me@bobcopeland.com> + * (c) 2006 Keith Bennett <keith@mcs.st-and.ac.uk> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_device.h> + +#include "usb.h" +#include "transport.h" +#include "debug.h" +#include "karma.h" + +#define RIO_PREFIX "RIOP\x00" +#define RIO_PREFIX_LEN 5 +#define RIO_SEND_LEN 40 +#define RIO_RECV_LEN 0x200 + +#define RIO_ENTER_STORAGE 0x1 +#define RIO_LEAVE_STORAGE 0x2 +#define RIO_RESET 0xC + +extern int usb_stor_Bulk_transport(struct scsi_cmnd *, struct us_data *); + +struct karma_data { + int in_storage; + char *recv; +}; + +/* + * Send commands to Rio Karma. + * + * For each command we send 40 bytes starting 'RIOP\0' followed by + * the command number and a sequence number, which the device will ack + * with a 512-byte packet with the high four bits set and everything + * else null. Then we send 'RIOP\x80' followed by a zero and the + * sequence number, until byte 5 in the response repeats the sequence + * number. + */ +static int rio_karma_send_command(char cmd, struct us_data *us) +{ + int result, partial; + unsigned long timeout; + static unsigned char seq = 1; + struct karma_data *data = (struct karma_data *) us->extra; + + US_DEBUGP("karma: sending command %04x\n", cmd); + memset(us->iobuf, 0, RIO_SEND_LEN); + memcpy(us->iobuf, RIO_PREFIX, RIO_PREFIX_LEN); + us->iobuf[5] = cmd; + us->iobuf[6] = seq; + + timeout = jiffies + msecs_to_jiffies(6000); + for (;;) { + result = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, + us->iobuf, RIO_SEND_LEN, &partial); + if (result != USB_STOR_XFER_GOOD) + goto err; + + result = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, + data->recv, RIO_RECV_LEN, &partial); + if (result != USB_STOR_XFER_GOOD) + goto err; + + if (data->recv[5] == seq) + break; + + if (time_after(jiffies, timeout)) + goto err; + + us->iobuf[4] = 0x80; + us->iobuf[5] = 0; + msleep(50); + } + + seq++; + if (seq == 0) + seq = 1; + + US_DEBUGP("karma: sent command %04x\n", cmd); + return 0; +err: + US_DEBUGP("karma: command %04x failed\n", cmd); + return USB_STOR_TRANSPORT_FAILED; +} + +/* + * Trap START_STOP and READ_10 to leave/re-enter storage mode. + * Everything else is propagated to the normal bulk layer. + */ +int rio_karma_transport(struct scsi_cmnd *srb, struct us_data *us) +{ + int ret; + struct karma_data *data = (struct karma_data *) us->extra; + + if (srb->cmnd[0] == READ_10 && !data->in_storage) { + ret = rio_karma_send_command(RIO_ENTER_STORAGE, us); + if (ret) + return ret; + + data->in_storage = 1; + return usb_stor_Bulk_transport(srb, us); + } else if (srb->cmnd[0] == START_STOP) { + ret = rio_karma_send_command(RIO_LEAVE_STORAGE, us); + if (ret) + return ret; + + data->in_storage = 0; + return rio_karma_send_command(RIO_RESET, us); + } + return usb_stor_Bulk_transport(srb, us); +} + +static void rio_karma_destructor(void *extra) +{ + struct karma_data *data = (struct karma_data *) extra; + kfree(data->recv); +} + +int rio_karma_init(struct us_data *us) +{ + int ret = 0; + struct karma_data *data = kzalloc(sizeof(struct karma_data), GFP_NOIO); + if (!data) + goto out; + + data->recv = kmalloc(RIO_RECV_LEN, GFP_NOIO); + if (!data->recv) { + kfree(data); + goto out; + } + + us->extra = data; + us->extra_destructor = rio_karma_destructor; + ret = rio_karma_send_command(RIO_ENTER_STORAGE, us); + data->in_storage = (ret == 0); +out: + return ret; +}
diff --git a/drivers/usb/storage/karma.h b/drivers/usb/storage/karma.h new file mode 100644 index 0000000..8a60972 --- /dev/null +++ b/drivers/usb/storage/karma.h
@@ -0,0 +1,7 @@ +#ifndef _KARMA_USB_H +#define _KARMA_USB_H + +extern int rio_karma_init(struct us_data *us); +extern int rio_karma_transport(struct scsi_cmnd *srb, struct us_data *us); + +#endif
diff --git a/drivers/usb/storage/libusual.c b/drivers/usb/storage/libusual.c index b1ec4a7..599ad10 100644 --- a/drivers/usb/storage/libusual.c +++ b/drivers/usb/storage/libusual.c
@@ -8,6 +8,7 @@ #include <linux/usb.h> #include <linux/usb_usual.h> #include <linux/vmalloc.h> +#include <linux/kthread.h> /* */ @@ -117,7 +118,7 @@ const struct usb_device_id *id) { unsigned long type; - int rc; + struct task_struct* task; unsigned long flags; type = USB_US_TYPE(id->driver_info); @@ -132,8 +133,9 @@ stat[type].fls |= USU_MOD_FL_THREAD; spin_unlock_irqrestore(&usu_lock, flags); - rc = kernel_thread(usu_probe_thread, (void*)type, CLONE_VM); - if (rc < 0) { + task = kthread_run(usu_probe_thread, (void*)type, "libusual_%d", type); + if (IS_ERR(task)) { + int rc = PTR_ERR(task); printk(KERN_WARNING "libusual: " "Unable to start the thread for %s: %d\n", bias_names[type], rc); @@ -175,8 +177,6 @@ int rc; unsigned long flags; - daemonize("libusual_%d", type); /* "usb-storage" is kinda too long */ - /* A completion does not work here because it's counted. */ down(&usu_init_notify); up(&usu_init_notify);
diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c index 313920d..f843a0b 100644 --- a/drivers/usb/storage/onetouch.c +++ b/drivers/usb/storage/onetouch.c
@@ -135,6 +135,7 @@ struct usb_onetouch *onetouch; struct input_dev *input_dev; int pipe, maxp; + int error = -ENOMEM; interface = ss->pusb_intf->cur_altsetting; @@ -211,15 +212,18 @@ ss->suspend_resume_hook = usb_onetouch_pm_hook; #endif - input_register_device(onetouch->dev); + error = input_register_device(onetouch->dev); + if (error) + goto fail3; return 0; + fail3: usb_free_urb(onetouch->irq); fail2: usb_buffer_free(udev, ONETOUCH_PKT_LEN, onetouch->data, onetouch->data_dma); fail1: kfree(onetouch); input_free_device(input_dev); - return -ENOMEM; + return error; } void onetouch_release_input(void *onetouch_)
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index a4b7df9..e1072d5 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c
@@ -72,12 +72,27 @@ static int slave_alloc (struct scsi_device *sdev) { + struct us_data *us = host_to_us(sdev->host); + /* * Set the INQUIRY transfer length to 36. We don't use any of * the extra data and many devices choke if asked for more or * less than 36 bytes. */ sdev->inquiry_len = 36; + + /* + * The UFI spec treates the Peripheral Qualifier bits in an + * INQUIRY result as reserved and requires devices to set them + * to 0. However the SCSI spec requires these bits to be set + * to 3 to indicate when a LUN is not present. + * + * Let the scanning code know if this target merely sets + * Peripheral Device Type to 0x1f to indicate no LUN. + */ + if (us->subclass == US_SC_UFI) + sdev->sdev_target->pdt_1f_for_no_lun = 1; + return 0; }
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index d6acc92..f23514c 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c
@@ -294,11 +294,6 @@ return USB_STOR_XFER_ERROR; return USB_STOR_XFER_STALLED; - /* timeout or excessively long NAK */ - case -ETIMEDOUT: - US_DEBUGP("-- timeout or NAK\n"); - return USB_STOR_XFER_ERROR; - /* babble - the device tried to send more than we wanted to read */ case -EOVERFLOW: US_DEBUGP("-- babble\n");
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index b130e17..40bf159 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h
@@ -218,10 +218,12 @@ US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_NOT_LOCKABLE ), +#ifdef CONFIG_USB_STORAGE_KARMA UNUSUAL_DEV( 0x045a, 0x5210, 0x0101, 0x0101, "Rio", "Rio Karma", - US_SC_SCSI, US_PR_BULK, rio_karma_init, 0), + US_SC_SCSI, US_PR_KARMA, rio_karma_init, 0), +#endif /* Patch submitted by Philipp Friedrich <philipp@void.at> */ UNUSUAL_DEV( 0x0482, 0x0100, 0x0100, 0x0100, @@ -631,6 +633,13 @@ "Digital Camera EX-20 DSC", US_SC_8070, US_PR_DEVICE, NULL, 0 ), +/* Reported by <Hendryk.Pfeiffer@gmx.de> */ +UNUSUAL_DEV( 0x059f, 0x0643, 0x0000, 0x0000, + "LaCie", + "DVD+-RW", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_GO_SLOW ), + /* Submitted by Joel Bourquard <numlock@freesurf.ch> * Some versions of this device need the SubClass and Protocol overrides * while others don't. @@ -1254,6 +1263,13 @@ US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_NO_WP_DETECT ), +/* Reported by Jan Mate <mate@fiit.stuba.sk> */ +UNUSUAL_DEV( 0x0fce, 0xe030, 0x0000, 0x0000, + "Sony Ericsson", + "P990i", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_FIX_CAPACITY ), + /* Reported by Emmanuel Vasilakis <evas@forthnet.gr> */ UNUSUAL_DEV( 0x0fce, 0xe031, 0x0000, 0x0000, "Sony Ericsson",
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index 8d7bdcb..b8d6031 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c
@@ -98,6 +98,9 @@ #ifdef CONFIG_USB_STORAGE_ALAUDA #include "alauda.h" #endif +#ifdef CONFIG_USB_STORAGE_KARMA +#include "karma.h" +#endif /* Some informational data */ MODULE_AUTHOR("Matthew Dharm <mdharm-usb@one-eyed-alien.net>"); @@ -646,6 +649,14 @@ break; #endif +#ifdef CONFIG_USB_STORAGE_KARMA + case US_PR_KARMA: + us->transport_name = "Rio Karma/Bulk"; + us->transport = rio_karma_transport; + us->transport_reset = usb_stor_Bulk_reset; + break; +#endif + default: return -EIO; }
diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c index b362039..1b51d31 100644 --- a/drivers/usb/usb-skeleton.c +++ b/drivers/usb/usb-skeleton.c
@@ -1,5 +1,5 @@ /* - * USB Skeleton driver - 2.0 + * USB Skeleton driver - 2.2 * * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com) * @@ -7,9 +7,8 @@ * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, version 2. * - * This driver is based on the 2.6.3 version of drivers/usb/usb-skeleton.c - * but has been rewritten to be easy to read and use, as no locks are now - * needed anymore. + * This driver is based on the 2.6.3 version of drivers/usb/usb-skeleton.c + * but has been rewritten to be easier to read and use. * */ @@ -21,6 +20,7 @@ #include <linux/kref.h> #include <asm/uaccess.h> #include <linux/usb.h> +#include <linux/mutex.h> /* Define these values to match your devices */ @@ -32,38 +32,39 @@ { USB_DEVICE(USB_SKEL_VENDOR_ID, USB_SKEL_PRODUCT_ID) }, { } /* Terminating entry */ }; -MODULE_DEVICE_TABLE (usb, skel_table); +MODULE_DEVICE_TABLE(usb, skel_table); /* Get a minor range for your devices from the usb maintainer */ #define USB_SKEL_MINOR_BASE 192 /* our private defines. if this grows any larger, use your own .h file */ -#define MAX_TRANSFER ( PAGE_SIZE - 512 ) +#define MAX_TRANSFER (PAGE_SIZE - 512) #define WRITES_IN_FLIGHT 8 /* Structure to hold all of our device specific stuff */ struct usb_skel { - struct usb_device * udev; /* the usb device for this device */ - struct usb_interface * interface; /* the interface for this device */ + struct usb_device *dev; /* the usb device for this device */ + struct usb_interface *interface; /* the interface for this device */ struct semaphore limit_sem; /* limiting the number of writes in progress */ - unsigned char * bulk_in_buffer; /* the buffer to receive data */ + unsigned char *bulk_in_buffer; /* the buffer to receive data */ size_t bulk_in_size; /* the size of the receive buffer */ __u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */ __u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */ struct kref kref; + struct mutex io_mutex; /* synchronize I/O with disconnect */ }; #define to_skel_dev(d) container_of(d, struct usb_skel, kref) static struct usb_driver skel_driver; static void skel_delete(struct kref *kref) -{ +{ struct usb_skel *dev = to_skel_dev(kref); usb_put_dev(dev->udev); - kfree (dev->bulk_in_buffer); - kfree (dev); + kfree(dev->bulk_in_buffer); + kfree(dev); } static int skel_open(struct inode *inode, struct file *file) @@ -89,6 +90,11 @@ goto exit; } + /* prevent the device from being autosuspended */ + retval = usb_autopm_get_interface(interface); + if (retval) + goto exit; + /* increment our usage count for the device */ kref_get(&dev->kref); @@ -107,6 +113,12 @@ if (dev == NULL) return -ENODEV; + /* allow the device to be autosuspended */ + mutex_lock(&dev->io_mutex); + if (dev->interface) + usb_autopm_put_interface(dev->interface); + mutex_unlock(&dev->io_mutex); + /* decrement the count on our device */ kref_put(&dev->kref, skel_delete); return 0; @@ -115,11 +127,17 @@ static ssize_t skel_read(struct file *file, char *buffer, size_t count, loff_t *ppos) { struct usb_skel *dev; - int retval = 0; + int retval; int bytes_read; dev = (struct usb_skel *)file->private_data; - + + mutex_lock(&dev->io_mutex); + if (!dev->interface) { /* disconnect() was called */ + retval = -ENODEV; + goto exit; + } + /* do a blocking bulk read to get data from the device */ retval = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev, dev->bulk_in_endpointAddr), @@ -135,6 +153,8 @@ retval = bytes_read; } +exit: + mutex_unlock(&dev->io_mutex); return retval; } @@ -145,16 +165,16 @@ dev = (struct usb_skel *)urb->context; /* sync/async unlink faults aren't errors */ - if (urb->status && - !(urb->status == -ENOENT || + if (urb->status && + !(urb->status == -ENOENT || urb->status == -ECONNRESET || urb->status == -ESHUTDOWN)) { - dbg("%s - nonzero write bulk status received: %d", + err("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); } /* free up our allocated buffer */ - usb_buffer_free(urb->dev, urb->transfer_buffer_length, + usb_buffer_free(urb->dev, urb->transfer_buffer_length, urb->transfer_buffer, urb->transfer_dma); up(&dev->limit_sem); } @@ -179,6 +199,12 @@ goto exit; } + mutex_lock(&dev->io_mutex); + if (!dev->interface) { /* disconnect() was called */ + retval = -ENODEV; + goto error; + } + /* create a urb, and a buffer for it, and copy the data to the urb */ urb = usb_alloc_urb(0, GFP_KERNEL); if (!urb) { @@ -213,17 +239,22 @@ /* release our reference to this urb, the USB core will eventually free it entirely */ usb_free_urb(urb); -exit: + mutex_unlock(&dev->io_mutex); return writesize; error: - usb_buffer_free(dev->udev, writesize, buf, urb->transfer_dma); - usb_free_urb(urb); + if (urb) { + usb_buffer_free(dev->udev, writesize, buf, urb->transfer_dma); + usb_free_urb(urb); + } + mutex_unlock(&dev->io_mutex); up(&dev->limit_sem); + +exit: return retval; } -static struct file_operations skel_fops = { +static const struct file_operations skel_fops = { .owner = THIS_MODULE, .read = skel_read, .write = skel_write, @@ -231,7 +262,7 @@ .release = skel_release, }; -/* +/* * usb class driver info in order to get a minor number from the usb core, * and to have the device registered with the driver core */ @@ -243,7 +274,7 @@ static int skel_probe(struct usb_interface *interface, const struct usb_device_id *id) { - struct usb_skel *dev = NULL; + struct usb_skel *dev; struct usb_host_interface *iface_desc; struct usb_endpoint_descriptor *endpoint; size_t buffer_size; @@ -252,12 +283,13 @@ /* allocate memory for our device state and initialize it */ dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (dev == NULL) { + if (!dev) { err("Out of memory"); goto error; } kref_init(&dev->kref); sema_init(&dev->limit_sem, WRITES_IN_FLIGHT); + mutex_init(&dev->io_mutex); dev->udev = usb_get_dev(interface_to_usbdev(interface)); dev->interface = interface; @@ -269,10 +301,7 @@ endpoint = &iface_desc->endpoint[i].desc; if (!dev->bulk_in_endpointAddr && - ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) - == USB_DIR_IN) && - ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) - == USB_ENDPOINT_XFER_BULK)) { + usb_endpoint_is_bulk_in(endpoint)) { /* we found a bulk in endpoint */ buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); dev->bulk_in_size = buffer_size; @@ -285,10 +314,7 @@ } if (!dev->bulk_out_endpointAddr && - ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) - == USB_DIR_OUT) && - ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) - == USB_ENDPOINT_XFER_BULK)) { + usb_endpoint_is_bulk_out(endpoint)) { /* we found a bulk out endpoint */ dev->bulk_out_endpointAddr = endpoint->bEndpointAddress; } @@ -334,6 +360,11 @@ /* give back our minor */ usb_deregister_dev(interface, &skel_class); + /* prevent more I/O from starting */ + mutex_lock(&dev->io_mutex); + dev->interface = NULL; + mutex_unlock(&dev->io_mutex); + unlock_kernel(); /* decrement our usage count */ @@ -367,7 +398,7 @@ usb_deregister(&skel_driver); } -module_init (usb_skel_init); -module_exit (usb_skel_exit); +module_init(usb_skel_init); +module_exit(usb_skel_exit); MODULE_LICENSE("GPL");
diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c index e308ed2..365de5d 100644 --- a/drivers/video/aty/radeon_pm.c +++ b/drivers/video/aty/radeon_pm.c
@@ -2621,25 +2621,28 @@ } -int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t state) +int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t mesg) { struct fb_info *info = pci_get_drvdata(pdev); struct radeonfb_info *rinfo = info->par; int i; - if (state.event == pdev->dev.power.power_state.event) + if (mesg.event == pdev->dev.power.power_state.event) return 0; - printk(KERN_DEBUG "radeonfb (%s): suspending to state: %d...\n", - pci_name(pdev), state.event); + printk(KERN_DEBUG "radeonfb (%s): suspending for event: %d...\n", + pci_name(pdev), mesg.event); /* For suspend-to-disk, we cheat here. We don't suspend anything and * let fbcon continue drawing until we are all set. That shouldn't * really cause any problem at this point, provided that the wakeup * code knows that any state in memory may not match the HW */ - if (state.event == PM_EVENT_FREEZE) + switch (mesg.event) { + case PM_EVENT_FREEZE: /* about to take snapshot */ + case PM_EVENT_PRETHAW: /* before restoring snapshot */ goto done; + } acquire_console_sem(); @@ -2706,7 +2709,7 @@ release_console_sem(); done: - pdev->dev.power.power_state = state; + pdev->dev.power.power_state = mesg; return 0; }
diff --git a/drivers/video/backlight/hp680_bl.c b/drivers/video/backlight/hp680_bl.c index ffc72ae..fe14883 100644 --- a/drivers/video/backlight/hp680_bl.c +++ b/drivers/video/backlight/hp680_bl.c
@@ -20,7 +20,7 @@ #include <asm/cpu/dac.h> #include <asm/hp6xx/hp6xx.h> -#include <asm/hd64461/hd64461.h> +#include <asm/hd64461.h> #define HP680_MAX_INTENSITY 255 #define HP680_DEFAULT_INTENSITY 10 @@ -163,6 +163,6 @@ module_init(hp680bl_init); module_exit(hp680bl_exit); -MODULE_AUTHOR("Andriy Skulysh <askulysh@image.kiev.ua>"); +MODULE_AUTHOR("Andriy Skulysh <askulysh@gmail.com>"); MODULE_DESCRIPTION("HP Jornada 680 Backlight Driver"); MODULE_LICENSE("GPL");
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig index 4444bef..aa3935d 100644 --- a/drivers/video/console/Kconfig +++ b/drivers/video/console/Kconfig
@@ -6,7 +6,7 @@ config VGA_CONSOLE bool "VGA text console" if EMBEDDED || !X86 - depends on !ARCH_ACORN && !ARCH_EBSA110 && !4xx && !8xx && !SPARC && !M68K && !PARISC && !FRV && !ARCH_VERSATILE + depends on !ARCH_ACORN && !ARCH_EBSA110 && !4xx && !8xx && !SPARC && !M68K && !PARISC && !FRV && !ARCH_VERSATILE && !SUPERH default y help Saying Y here will allow you to use Linux in text mode through a
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c index 4f78f23..c151dcf 100644 --- a/drivers/video/fbsysfs.c +++ b/drivers/video/fbsysfs.c
@@ -397,6 +397,12 @@ u8 tmp_curve[FB_BACKLIGHT_LEVELS]; unsigned int i; + /* Some drivers don't use framebuffer_alloc(), but those also + * don't have backlights. + */ + if (!fb_info || !fb_info->bl_dev) + return -ENODEV; + if (count != (FB_BACKLIGHT_LEVELS / 8 * 24)) return -EINVAL; @@ -430,6 +436,12 @@ ssize_t len = 0; unsigned int i; + /* Some drivers don't use framebuffer_alloc(), but those also + * don't have backlights. + */ + if (!fb_info || !fb_info->bl_dev) + return -ENODEV; + mutex_lock(&fb_info->bl_mutex); for (i = 0; i < FB_BACKLIGHT_LEVELS; i += 8) len += snprintf(&buf[len], PAGE_SIZE,
diff --git a/drivers/video/hitfb.c b/drivers/video/hitfb.c index 4cc6b45..3afb472 100644 --- a/drivers/video/hitfb.c +++ b/drivers/video/hitfb.c
@@ -4,7 +4,7 @@ * (C) 1999 Mihai Spatar * (C) 2000 YAEGASHI Takeshi * (C) 2003, 2004 Paul Mundt - * (C) 2003, 2004 Andriy Skulysh + * (C) 2003, 2004, 2006 Andriy Skulysh * * This file is subject to the terms and conditions of the GNU General Public * License. See the file COPYING in the main directory of this archive for @@ -20,18 +20,16 @@ #include <linux/slab.h> #include <linux/delay.h> #include <linux/init.h> +#include <linux/platform_device.h> #include <linux/fb.h> #include <asm/machvec.h> #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/io.h> -#include <asm/hd64461/hd64461.h> - -#ifdef MACH_HP600 +#include <asm/hd64461.h> #include <asm/cpu/dac.h> #include <asm/hp6xx/hp6xx.h> -#endif #define WIDTH 640 @@ -45,7 +43,6 @@ static struct fb_fix_screeninfo hitfb_fix __initdata = { .id = "Hitachi HD64461", .type = FB_TYPE_PACKED_PIXELS, - .ypanstep = 8, .accel = FB_ACCEL_NONE, }; @@ -73,26 +70,14 @@ if (truecolor) saddr <<= 1; - fb_writew(width, HD64461_BBTDWR); - fb_writew(height, HD64461_BBTDHR); + fb_writew(width-1, HD64461_BBTDWR); + fb_writew(height-1, HD64461_BBTDHR); fb_writew(saddr & 0xffff, HD64461_BBTDSARL); fb_writew(saddr >> 16, HD64461_BBTDSARH); } -static inline void hitfb_accel_solidfill(int truecolor, u16 dx, u16 dy, - u16 width, u16 height, u16 color) -{ - hitfb_accel_set_dest(truecolor, dx, dy, width, height); - - fb_writew(0x00f0, HD64461_BBTROPR); - fb_writew(16, HD64461_BBTMDR); - fb_writew(color, HD64461_GRSCR); - - hitfb_accel_start(truecolor); -} - static inline void hitfb_accel_bitblt(int truecolor, u16 sx, u16 sy, u16 dx, u16 dy, u16 width, u16 height, u16 rop, u32 mask_addr) @@ -100,6 +85,8 @@ u32 saddr, daddr; u32 maddr = 0; + height--; + width--; fb_writew(rop, HD64461_BBTROPR); if ((sy < dy) || ((sy == dy) && (sx <= dx))) { saddr = WIDTH * (sy + height) + sx + width; @@ -146,6 +133,7 @@ if (rect->rop != ROP_COPY) cfb_fillrect(p, rect); else { + hitfb_accel_wait(); fb_writew(0x00f0, HD64461_BBTROPR); fb_writew(16, HD64461_BBTMDR); @@ -161,16 +149,15 @@ rect->height); hitfb_accel_start(0); } - hitfb_accel_wait(); } } static void hitfb_copyarea(struct fb_info *p, const struct fb_copyarea *area) { + hitfb_accel_wait(); hitfb_accel_bitblt(p->var.bits_per_pixel == 16, area->sx, area->sy, area->dx, area->dy, area->width, area->height, 0x00cc, 0); - hitfb_accel_wait(); } static int hitfb_pan_display(struct fb_var_screeninfo *var, @@ -182,7 +169,7 @@ if (xoffset != 0) return -EINVAL; - fb_writew(yoffset, HD64461_LCDCBAR); + fb_writew((yoffset*info->fix.line_length)>>10, HD64461_LCDCBAR); return 0; } @@ -192,12 +179,6 @@ unsigned short v; if (blank_mode) { -#ifdef MACH_HP600 - sh_dac_disable(DAC_LCD_BRIGHTNESS); - v = fb_readw(HD64461_GPBDR); - v |= HD64461_GPBDR_LCDOFF; - fb_writew(v, HD64461_GPBDR); -#endif v = fb_readw(HD64461_LDR1); v &= ~HD64461_LDR1_DON; fb_writew(v, HD64461_LDR1); @@ -213,19 +194,18 @@ v = fb_readw(HD64461_STBCR); v &= ~HD64461_STBCR_SLCDST; fb_writew(v, HD64461_STBCR); -#ifdef MACH_HP600 - sh_dac_enable(DAC_LCD_BRIGHTNESS); - v = fb_readw(HD64461_GPBDR); - v &= ~HD64461_GPBDR_LCDOFF; - fb_writew(v, HD64461_GPBDR); -#endif + + v = fb_readw(HD64461_LCDCCR); + v &= ~(HD64461_LCDCCR_MOFF | HD64461_LCDCCR_STREQ); + fb_writew(v, HD64461_LCDCCR); + + do { + v = fb_readw(HD64461_LCDCCR); + } while(v&HD64461_LCDCCR_STBACK); + v = fb_readw(HD64461_LDR1); v |= HD64461_LDR1_DON; fb_writew(v, HD64461_LDR1); - - v = fb_readw(HD64461_LCDCCR); - v &= ~HD64461_LCDCCR_MOFF; - fb_writew(v, HD64461_LCDCCR); } return 0; } @@ -233,7 +213,7 @@ static int hitfb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue, unsigned transp, struct fb_info *info) { - if (regno >= info->cmap.len) + if (regno >= 256) return 1; switch (info->var.bits_per_pixel) { @@ -244,6 +224,8 @@ fb_writew(blue >> 10, HD64461_CPTWDR); break; case 16: + if (regno >= 16) + return 1; ((u32 *) (info->pseudo_palette))[regno] = ((red & 0xf800)) | ((green & 0xfc00) >> 5) | ((blue & 0xf800) >> 11); @@ -252,26 +234,113 @@ return 0; } +static int hitfb_sync(struct fb_info *info) +{ + hitfb_accel_wait(); + + return 0; +} + +static int hitfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) +{ + int maxy; + + var->xres = info->var.xres; + var->xres_virtual = info->var.xres; + var->yres = info->var.yres; + + if ((var->bits_per_pixel != 8) && (var->bits_per_pixel != 16)) + var->bits_per_pixel = info->var.bits_per_pixel; + + if (var->yres_virtual < var->yres) + var->yres_virtual = var->yres; + + maxy = info->fix.smem_len / var->xres; + + if (var->bits_per_pixel == 16) + maxy /= 2; + + if (var->yres_virtual > maxy) + var->yres_virtual = maxy; + + var->xoffset = 0; + var->yoffset = 0; + + switch (var->bits_per_pixel) { + case 8: + var->red.offset = 0; + var->red.length = 8; + var->green.offset = 0; + var->green.length = 8; + var->blue.offset = 0; + var->blue.length = 8; + var->transp.offset = 0; + var->transp.length = 0; + break; + case 16: /* RGB 565 */ + var->red.offset = 11; + var->red.length = 5; + var->green.offset = 5; + var->green.length = 6; + var->blue.offset = 0; + var->blue.length = 5; + var->transp.offset = 0; + var->transp.length = 0; + break; + } + + return 0; +} + +static int hitfb_set_par(struct fb_info *info) +{ + unsigned short ldr3; + + switch (info->var.bits_per_pixel) { + case 8: + info->fix.line_length = info->var.xres; + info->fix.visual = FB_VISUAL_PSEUDOCOLOR; + info->fix.ypanstep = 16; + break; + case 16: + info->fix.line_length = info->var.xres*2; + info->fix.visual = FB_VISUAL_TRUECOLOR; + info->fix.ypanstep = 8; + break; + } + + fb_writew(info->fix.line_length, HD64461_LCDCLOR); + ldr3 = fb_readw(HD64461_LDR3); + ldr3 &= ~15; + ldr3 |= (info->var.bits_per_pixel == 8) ? 4 : 8; + fb_writew(ldr3, HD64461_LDR3); + return 0; +} + static struct fb_ops hitfb_ops = { .owner = THIS_MODULE, + .fb_check_var = hitfb_check_var, + .fb_set_par = hitfb_set_par, .fb_setcolreg = hitfb_setcolreg, .fb_blank = hitfb_blank, + .fb_sync = hitfb_sync, .fb_pan_display = hitfb_pan_display, .fb_fillrect = hitfb_fillrect, .fb_copyarea = hitfb_copyarea, .fb_imageblit = cfb_imageblit, }; -int __init hitfb_init(void) +static int __init hitfb_probe(struct platform_device *dev) { unsigned short lcdclor, ldr3, ldvndr; - int size; if (fb_get_options("hitfb", NULL)) return -ENODEV; + hitfb_fix.mmio_start = CONFIG_HD64461_IOBASE+0x1000; + hitfb_fix.mmio_len = 0x1000; hitfb_fix.smem_start = CONFIG_HD64461_IOBASE + 0x02000000; - hitfb_fix.smem_len = (MACH_HP690) ? 1024 * 1024 : 512 * 1024; + hitfb_fix.smem_len = 512 * 1024; lcdclor = fb_readw(HD64461_LCDCLOR); ldvndr = fb_readw(HD64461_LDVNDR); @@ -321,12 +390,12 @@ fb_info.var = hitfb_var; fb_info.fix = hitfb_fix; fb_info.pseudo_palette = pseudo_palette; - fb_info.flags = FBINFO_DEFAULT; + fb_info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN | + FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_COPYAREA; fb_info.screen_base = (void *)hitfb_fix.smem_start; - size = (fb_info.var.bits_per_pixel == 8) ? 256 : 16; - fb_alloc_cmap(&fb_info.cmap, size, 0); + fb_alloc_cmap(&fb_info.cmap, 256, 0); if (register_framebuffer(&fb_info) < 0) return -EINVAL; @@ -336,9 +405,75 @@ return 0; } +static int __devexit hitfb_remove(struct platform_device *dev) +{ + return unregister_framebuffer(&fb_info); +} + +#ifdef CONFIG_PM +static int hitfb_suspend(struct platform_device *dev, pm_message_t state) +{ + u16 v; + + hitfb_blank(1,0); + v = fb_readw(HD64461_STBCR); + v |= HD64461_STBCR_SLCKE_IST; + fb_writew(v, HD64461_STBCR); + + return 0; +} + +static int hitfb_resume(struct platform_device *dev) +{ + u16 v; + + v = fb_readw(HD64461_STBCR); + v &= ~HD64461_STBCR_SLCKE_OST; + msleep(100); + v = fb_readw(HD64461_STBCR); + v &= ~HD64461_STBCR_SLCKE_IST; + fb_writew(v, HD64461_STBCR); + hitfb_blank(0,0); + + return 0; +} +#endif + +static struct platform_driver hitfb_driver = { + .probe = hitfb_probe, + .remove = __devexit_p(hitfb_remove), +#ifdef CONFIG_PM + .suspend = hitfb_suspend, + .resume = hitfb_resume, +#endif + .driver = { + .name = "hitfb", + }, +}; + +static struct platform_device hitfb_device = { + .name = "hitfb", + .id = -1, +}; + +static int __init hitfb_init(void) +{ + int ret; + + ret = platform_driver_register(&hitfb_driver); + if (!ret) { + ret = platform_device_register(&hitfb_device); + if (ret) + platform_driver_unregister(&hitfb_driver); + } + return ret; +} + + static void __exit hitfb_exit(void) { - unregister_framebuffer(&fb_info); + platform_device_unregister(&hitfb_device); + platform_driver_unregister(&hitfb_driver); } module_init(hitfb_init);
diff --git a/drivers/video/i810/i810-i2c.c b/drivers/video/i810/i810-i2c.c index c1f7b49..7d06b38 100644 --- a/drivers/video/i810/i810-i2c.c +++ b/drivers/video/i810/i810-i2c.c
@@ -98,7 +98,6 @@ chan->algo.getsda = i810i2c_getsda; chan->algo.getscl = i810i2c_getscl; chan->algo.udelay = 10; - chan->algo.mdelay = 10; chan->algo.timeout = (HZ/2); chan->algo.data = chan;
diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c index a6ca02f..d42edac 100644 --- a/drivers/video/i810/i810_main.c +++ b/drivers/video/i810/i810_main.c
@@ -1554,15 +1554,17 @@ /*********************************************************************** * Power Management * ***********************************************************************/ -static int i810fb_suspend(struct pci_dev *dev, pm_message_t state) +static int i810fb_suspend(struct pci_dev *dev, pm_message_t mesg) { struct fb_info *info = pci_get_drvdata(dev); struct i810fb_par *par = info->par; - par->cur_state = state.event; + par->cur_state = mesg.event; - if (state.event == PM_EVENT_FREEZE) { - dev->dev.power.power_state = state; + switch (mesg.event) { + case PM_EVENT_FREEZE: + case PM_EVENT_PRETHAW: + dev->dev.power.power_state = mesg; return 0; } @@ -1578,7 +1580,7 @@ pci_save_state(dev); pci_disable_device(dev); - pci_set_power_state(dev, pci_choose_state(dev, state)); + pci_set_power_state(dev, pci_choose_state(dev, mesg)); release_console_sem(); return 0;
diff --git a/drivers/video/matrox/i2c-matroxfb.c b/drivers/video/matrox/i2c-matroxfb.c index 57abbae..795c1a9 100644 --- a/drivers/video/matrox/i2c-matroxfb.c +++ b/drivers/video/matrox/i2c-matroxfb.c
@@ -95,12 +95,12 @@ static struct i2c_algo_bit_data matrox_i2c_algo_template = { - NULL, - matroxfb_gpio_setsda, - matroxfb_gpio_setscl, - matroxfb_gpio_getsda, - matroxfb_gpio_getscl, - 10, 10, 100, + .setsda = matroxfb_gpio_setsda, + .setscl = matroxfb_gpio_setscl, + .getsda = matroxfb_gpio_getsda, + .getscl = matroxfb_gpio_getscl, + .udelay = 10, + .timeout = 100, }; static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo,
diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c index d4f8501..f8cd4c5 100644 --- a/drivers/video/nvidia/nvidia.c +++ b/drivers/video/nvidia/nvidia.c
@@ -950,24 +950,25 @@ }; #ifdef CONFIG_PM -static int nvidiafb_suspend(struct pci_dev *dev, pm_message_t state) +static int nvidiafb_suspend(struct pci_dev *dev, pm_message_t mesg) { struct fb_info *info = pci_get_drvdata(dev); struct nvidia_par *par = info->par; + if (mesg.event == PM_EVENT_PRETHAW) + mesg.event = PM_EVENT_FREEZE; acquire_console_sem(); - par->pm_state = state.event; + par->pm_state = mesg.event; - if (state.event == PM_EVENT_FREEZE) { - dev->dev.power.power_state = state; - } else { + if (mesg.event == PM_EVENT_SUSPEND) { fb_set_suspend(info, 1); nvidiafb_blank(FB_BLANK_POWERDOWN, info); nvidia_write_regs(par, &par->SavedReg); pci_save_state(dev); pci_disable_device(dev); - pci_set_power_state(dev, pci_choose_state(dev, state)); + pci_set_power_state(dev, pci_choose_state(dev, mesg)); } + dev->dev.power.power_state = mesg; release_console_sem(); return 0;
diff --git a/drivers/video/pvr2fb.c b/drivers/video/pvr2fb.c index 940ba2b..78dc59a 100644 --- a/drivers/video/pvr2fb.c +++ b/drivers/video/pvr2fb.c
@@ -187,7 +187,7 @@ static unsigned int is_blanked = 0; /* Is the screen blanked? */ #ifdef CONFIG_SH_STORE_QUEUES -static struct sq_mapping *pvr2fb_map; +static unsigned long pvr2fb_map; #endif #ifdef CONFIG_SH_DMA @@ -213,15 +213,17 @@ static int pvr2_init_cable(void); static int pvr2_get_param(const struct pvr2_params *p, const char *s, int val, int size); +#ifdef CONFIG_SH_DMA static ssize_t pvr2fb_write(struct file *file, const char *buf, size_t count, loff_t *ppos); +#endif static struct fb_ops pvr2fb_ops = { - .owner = THIS_MODULE, - .fb_setcolreg = pvr2fb_setcolreg, - .fb_blank = pvr2fb_blank, - .fb_check_var = pvr2fb_check_var, - .fb_set_par = pvr2fb_set_par, + .owner = THIS_MODULE, + .fb_setcolreg = pvr2fb_setcolreg, + .fb_blank = pvr2fb_blank, + .fb_check_var = pvr2fb_check_var, + .fb_set_par = pvr2fb_set_par, #ifdef CONFIG_SH_DMA .fb_write = pvr2fb_write, #endif @@ -783,7 +785,7 @@ goto out_err; } - fb_memset((unsigned long)fb_info->screen_base, 0, pvr2_fix.smem_len); + fb_memset(fb_info->screen_base, 0, pvr2_fix.smem_len); pvr2_fix.ypanstep = nopan ? 0 : 1; pvr2_fix.ywrapstep = nowrap ? 0 : 1; @@ -820,7 +822,7 @@ modememused >> 10, (unsigned long)(fb_info->fix.smem_len >> 10)); printk("fb%d: Mode %dx%d-%d pitch = %ld cable: %s video output: %s\n", fb_info->node, fb_info->var.xres, fb_info->var.yres, - fb_info->var.bits_per_pixel, + fb_info->var.bits_per_pixel, get_line_length(fb_info->var.xres, fb_info->var.bits_per_pixel), (char *)pvr2_get_param(cables, NULL, cable_type, 3), (char *)pvr2_get_param(outputs, NULL, video_output, 3)); @@ -829,10 +831,10 @@ printk(KERN_NOTICE "fb%d: registering with SQ API\n", fb_info->node); pvr2fb_map = sq_remap(fb_info->fix.smem_start, fb_info->fix.smem_len, - fb_info->fix.id); + fb_info->fix.id, pgprot_val(PAGE_SHARED)); printk(KERN_NOTICE "fb%d: Mapped video memory to SQ addr 0x%lx\n", - fb_info->node, pvr2fb_map->sq_addr); + fb_info->node, pvr2fb_map); #endif return 0;
diff --git a/drivers/video/savage/savagefb-i2c.c b/drivers/video/savage/savagefb-i2c.c index e83befd..d7d810db 100644 --- a/drivers/video/savage/savagefb-i2c.c +++ b/drivers/video/savage/savagefb-i2c.c
@@ -148,7 +148,6 @@ chan->adapter.algo_data = &chan->algo; chan->adapter.dev.parent = &chan->par->pcidev->dev; chan->algo.udelay = 40; - chan->algo.mdelay = 5; chan->algo.timeout = 20; chan->algo.data = chan;
diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c index 461e094..82b3dea 100644 --- a/drivers/video/savage/savagefb_driver.c +++ b/drivers/video/savage/savagefb_driver.c
@@ -2323,24 +2323,24 @@ } } -static int savagefb_suspend(struct pci_dev* dev, pm_message_t state) +static int savagefb_suspend(struct pci_dev *dev, pm_message_t mesg) { struct fb_info *info = pci_get_drvdata(dev); struct savagefb_par *par = info->par; DBG("savagefb_suspend"); - - par->pm_state = state.event; + if (mesg.event == PM_EVENT_PRETHAW) + mesg.event = PM_EVENT_FREEZE; + par->pm_state = mesg.event; + dev->dev.power.power_state = mesg; /* * For PM_EVENT_FREEZE, do not power down so the console * can remain active. */ - if (state.event == PM_EVENT_FREEZE) { - dev->dev.power.power_state = state; + if (mesg.event == PM_EVENT_FREEZE) return 0; - } acquire_console_sem(); fb_set_suspend(info, 1); @@ -2353,7 +2353,7 @@ savage_disable_mmio(par); pci_save_state(dev); pci_disable_device(dev); - pci_set_power_state(dev, pci_choose_state(dev, state)); + pci_set_power_state(dev, pci_choose_state(dev, mesg)); release_console_sem(); return 0;
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index eae50c9..7a7ec2d 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c
@@ -204,7 +204,6 @@ inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = sb->s_blocksize; inode->i_blocks = 0; inode->i_rdev = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; @@ -950,9 +949,8 @@ inode->i_size = stat->length; - inode->i_blksize = sb->s_blocksize; inode->i_blocks = - (inode->i_size + inode->i_blksize - 1) >> sb->s_blocksize_bits; + (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits; } /**
diff --git a/fs/Kconfig b/fs/Kconfig index ca9affd..c968b9c 100644 --- a/fs/Kconfig +++ b/fs/Kconfig
@@ -827,6 +827,25 @@ help Exports the dump image of crashed kernel in ELF format. +config PROC_SYSCTL + bool "Sysctl support (/proc/sys)" if EMBEDDED + depends on PROC_FS + select SYSCTL + default y + ---help--- + The sysctl interface provides a means of dynamically changing + certain kernel parameters and variables on the fly without requiring + a recompile of the kernel or reboot of the system. The primary + interface is through /proc/sys. If you say Y here a tree of + modifiable sysctl entries will be generated beneath the + /proc/sys directory. They are explained in the files + in <file:Documentation/sysctl/>. Note that enabling this + option will enlarge the kernel by at least 8 KB. + + As it is generally a good thing, you should say Y here unless + building a kernel for install/rescue disks or your system is very + limited in memory. + config SYSFS bool "sysfs file system support" if EMBEDDED default y
diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c index 534f3ee..7e7a04b 100644 --- a/fs/adfs/inode.c +++ b/fs/adfs/inode.c
@@ -269,7 +269,6 @@ inode->i_ino = obj->file_id; inode->i_size = obj->size; inode->i_nlink = 2; - inode->i_blksize = PAGE_SIZE; inode->i_blocks = (inode->i_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
diff --git a/fs/adfs/super.c b/fs/adfs/super.c index 8201101..9ade139 100644 --- a/fs/adfs/super.c +++ b/fs/adfs/super.c
@@ -251,8 +251,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(adfs_inode_cachep)) - printk(KERN_INFO "adfs_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(adfs_inode_cachep); } static struct super_operations adfs_sops = { @@ -339,11 +338,10 @@ sb->s_flags |= MS_NODIRATIME; - asb = kmalloc(sizeof(*asb), GFP_KERNEL); + asb = kzalloc(sizeof(*asb), GFP_KERNEL); if (!asb) return -ENOMEM; sb->s_fs_info = asb; - memset(asb, 0, sizeof(*asb)); /* set default options */ asb->s_uid = 0;
diff --git a/fs/affs/super.c b/fs/affs/super.c index 1735201..5ea72c3 100644 --- a/fs/affs/super.c +++ b/fs/affs/super.c
@@ -109,8 +109,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(affs_inode_cachep)) - printk(KERN_INFO "affs_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(affs_inode_cachep); } static struct super_operations affs_sops = { @@ -280,11 +279,10 @@ sb->s_op = &affs_sops; sb->s_flags |= MS_NODIRATIME; - sbi = kmalloc(sizeof(struct affs_sb_info), GFP_KERNEL); + sbi = kzalloc(sizeof(struct affs_sb_info), GFP_KERNEL); if (!sbi) return -ENOMEM; sb->s_fs_info = sbi; - memset(sbi, 0, sizeof(*sbi)); init_MUTEX(&sbi->s_bmlock); if (!parse_options(data,&uid,&gid,&i,&reserved,&root_block,
diff --git a/fs/afs/inode.c b/fs/afs/inode.c index 4ebb30a..6f37754 100644 --- a/fs/afs/inode.c +++ b/fs/afs/inode.c
@@ -72,7 +72,6 @@ inode->i_ctime.tv_sec = vnode->status.mtime_server; inode->i_ctime.tv_nsec = 0; inode->i_atime = inode->i_mtime = inode->i_ctime; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_version = vnode->fid.unique; inode->i_mapping->a_ops = &afs_fs_aops;
diff --git a/fs/afs/vlocation.c b/fs/afs/vlocation.c index 331f730..782ee7c 100644 --- a/fs/afs/vlocation.c +++ b/fs/afs/vlocation.c
@@ -281,11 +281,10 @@ spin_unlock(&cell->vl_gylock); /* not in the cell's in-memory lists - create a new record */ - vlocation = kmalloc(sizeof(struct afs_vlocation), GFP_KERNEL); + vlocation = kzalloc(sizeof(struct afs_vlocation), GFP_KERNEL); if (!vlocation) return -ENOMEM; - memset(vlocation, 0, sizeof(struct afs_vlocation)); atomic_set(&vlocation->usage, 1); INIT_LIST_HEAD(&vlocation->link); rwlock_init(&vlocation->lock);
diff --git a/fs/afs/volume.c b/fs/afs/volume.c index 0ff4b86..768c6db 100644 --- a/fs/afs/volume.c +++ b/fs/afs/volume.c
@@ -186,11 +186,10 @@ _debug("creating new volume record"); ret = -ENOMEM; - volume = kmalloc(sizeof(struct afs_volume), GFP_KERNEL); + volume = kzalloc(sizeof(struct afs_volume), GFP_KERNEL); if (!volume) goto error_up; - memset(volume, 0, sizeof(struct afs_volume)); atomic_set(&volume->usage, 1); volume->type = type; volume->type_force = force;
diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c index af2efbb..2c9759ba 100644 --- a/fs/autofs/inode.c +++ b/fs/autofs/inode.c
@@ -129,10 +129,9 @@ struct autofs_sb_info *sbi; int minproto, maxproto; - sbi = kmalloc(sizeof(*sbi), GFP_KERNEL); + sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); if ( !sbi ) goto fail_unlock; - memset(sbi, 0, sizeof(*sbi)); DPRINTK(("autofs: starting up, sbi = %p\n",sbi)); s->s_fs_info = sbi; @@ -217,7 +216,6 @@ inode->i_nlink = 2; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; inode->i_blocks = 0; - inode->i_blksize = 1024; if ( ino == AUTOFS_ROOT_INO ) { inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR; @@ -242,7 +240,7 @@ inode->i_op = &autofs_symlink_inode_operations; sl = &sbi->symlink[n]; - inode->u.generic_ip = sl; + inode->i_private = sl; inode->i_mode = S_IFLNK | S_IRWXUGO; inode->i_mtime.tv_sec = inode->i_ctime.tv_sec = sl->mtime; inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec = 0;
diff --git a/fs/autofs/symlink.c b/fs/autofs/symlink.c index 52e8772..c74f2eb 100644 --- a/fs/autofs/symlink.c +++ b/fs/autofs/symlink.c
@@ -15,7 +15,7 @@ /* Nothing to release.. */ static void *autofs_follow_link(struct dentry *dentry, struct nameidata *nd) { - char *s=((struct autofs_symlink *)dentry->d_inode->u.generic_ip)->data; + char *s=((struct autofs_symlink *)dentry->d_inode->i_private)->data; nd_set_link(nd, s); return NULL; }
diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index 8dbd44f..d96e5c1 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c
@@ -32,7 +32,7 @@ if (!do_now) { /* Too young to die */ - if (time_after(ino->last_used + timeout, now)) + if (!timeout || time_after(ino->last_used + timeout, now)) return 0; /* update last_used here :- @@ -253,7 +253,7 @@ struct dentry *root = dget(sb->s_root); int do_now = how & AUTOFS_EXP_IMMEDIATE; - if (!sbi->exp_timeout || !root) + if (!root) return NULL; now = jiffies; @@ -293,7 +293,7 @@ int do_now = how & AUTOFS_EXP_IMMEDIATE; int exp_leaves = how & AUTOFS_EXP_LEAVES; - if ( !sbi->exp_timeout || !root ) + if (!root) return NULL; now = jiffies;
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c index 11a6a9a..800ce87 100644 --- a/fs/autofs4/inode.c +++ b/fs/autofs4/inode.c
@@ -447,7 +447,6 @@ inode->i_uid = 0; inode->i_gid = 0; } - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c index 5100f984..27e17f9 100644 --- a/fs/autofs4/root.c +++ b/fs/autofs4/root.c
@@ -137,7 +137,9 @@ nd.flags = LOOKUP_DIRECTORY; ret = (dentry->d_op->d_revalidate)(dentry, &nd); - if (!ret) { + if (ret <= 0) { + if (ret < 0) + status = ret; dcache_dir_close(inode, file); goto out; } @@ -400,13 +402,23 @@ struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb); int oz_mode = autofs4_oz_mode(sbi); int flags = nd ? nd->flags : 0; - int status = 0; + int status = 1; /* Pending dentry */ if (autofs4_ispending(dentry)) { - if (!oz_mode) - status = try_to_fill_dentry(dentry, flags); - return !status; + /* The daemon never causes a mount to trigger */ + if (oz_mode) + return 1; + + /* + * A zero status is success otherwise we have a + * negative error code. + */ + status = try_to_fill_dentry(dentry, flags); + if (status == 0) + return 1; + + return status; } /* Negative dentry.. invalidate if "old" */ @@ -421,9 +433,19 @@ DPRINTK("dentry=%p %.*s, emptydir", dentry, dentry->d_name.len, dentry->d_name.name); spin_unlock(&dcache_lock); - if (!oz_mode) - status = try_to_fill_dentry(dentry, flags); - return !status; + /* The daemon never causes a mount to trigger */ + if (oz_mode) + return 1; + + /* + * A zero status is success otherwise we have a + * negative error code. + */ + status = try_to_fill_dentry(dentry, flags); + if (status == 0) + return 1; + + return status; } spin_unlock(&dcache_lock);
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index 50cfca5..57020c7 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c
@@ -365,7 +365,6 @@ inode->i_mtime.tv_nsec = 0; /* lower 16 bits are not a time */ inode->i_ctime = inode->i_mtime; inode->i_atime = inode->i_mtime; - inode->i_blksize = befs_sb->block_size; befs_ino->i_inode_num = fsrun_to_cpu(sb, raw_inode->inode_num); befs_ino->i_parent = fsrun_to_cpu(sb, raw_inode->parent); @@ -446,9 +445,7 @@ static void befs_destroy_inodecache(void) { - if (kmem_cache_destroy(befs_inode_cachep)) - printk(KERN_ERR "befs_destroy_inodecache: " - "not all structures were freed\n"); + kmem_cache_destroy(befs_inode_cachep); } /*
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c index 26fad96..dcf04cb 100644 --- a/fs/bfs/dir.c +++ b/fs/bfs/dir.c
@@ -102,7 +102,7 @@ inode->i_uid = current->fsuid; inode->i_gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; inode->i_op = &bfs_file_inops; inode->i_fop = &bfs_file_operations; inode->i_mapping->a_ops = &bfs_aops;
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c index cf74f3d..ed27ffb 100644 --- a/fs/bfs/inode.c +++ b/fs/bfs/inode.c
@@ -76,7 +76,6 @@ inode->i_size = BFS_FILESIZE(di); inode->i_blocks = BFS_FILEBLOCKS(di); if (inode->i_size || inode->i_blocks) dprintf("Registered inode with %lld size, %ld blocks\n", inode->i_size, inode->i_blocks); - inode->i_blksize = PAGE_SIZE; inode->i_atime.tv_sec = le32_to_cpu(di->i_atime); inode->i_mtime.tv_sec = le32_to_cpu(di->i_mtime); inode->i_ctime.tv_sec = le32_to_cpu(di->i_ctime); @@ -268,8 +267,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(bfs_inode_cachep)) - printk(KERN_INFO "bfs_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(bfs_inode_cachep); } static struct super_operations bfs_sops = { @@ -311,11 +309,10 @@ unsigned i, imap_len; struct bfs_sb_info * info; - info = kmalloc(sizeof(*info), GFP_KERNEL); + info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; s->s_fs_info = info; - memset(info, 0, sizeof(*info)); sb_set_blocksize(s, BFS_BSIZE); @@ -338,10 +335,9 @@ + BFS_ROOT_INO - 1; imap_len = info->si_lasti/8 + 1; - info->si_imap = kmalloc(imap_len, GFP_KERNEL); + info->si_imap = kzalloc(imap_len, GFP_KERNEL); if (!info->si_imap) goto out; - memset(info->si_imap, 0, imap_len); for (i=0; i<BFS_ROOT_INO; i++) set_bit(i, info->si_imap);
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index 672a3b9..dfd8cfb 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c
@@ -515,7 +515,8 @@ { unsigned int random_variable = 0; - if (current->flags & PF_RANDOMIZE) { + if ((current->flags & PF_RANDOMIZE) && + !(current->personality & ADDR_NO_RANDOMIZE)) { random_variable = get_random_int() & STACK_RND_MASK; random_variable <<= PAGE_SHIFT; } @@ -1262,7 +1263,7 @@ return; } -static void fill_elf_note_phdr(struct elf_phdr *phdr, int sz, off_t offset) +static void fill_elf_note_phdr(struct elf_phdr *phdr, int sz, loff_t offset) { phdr->p_type = PT_NOTE; phdr->p_offset = offset; @@ -1428,7 +1429,7 @@ int i; struct vm_area_struct *vma; struct elfhdr *elf = NULL; - off_t offset = 0, dataoff; + loff_t offset = 0, dataoff; unsigned long limit = current->signal->rlim[RLIMIT_CORE].rlim_cur; int numnote; struct memelfnote *notes = NULL; @@ -1661,11 +1662,11 @@ ELF_CORE_WRITE_EXTRA_DATA; #endif - if ((off_t)file->f_pos != offset) { + if (file->f_pos != offset) { /* Sanity check */ printk(KERN_WARNING - "elf_core_dump: file->f_pos (%ld) != offset (%ld)\n", - (off_t)file->f_pos, offset); + "elf_core_dump: file->f_pos (%Ld) != offset (%Ld)\n", + file->f_pos, offset); } end_coredump:
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c index 34ebbc1..66ba137 100644 --- a/fs/binfmt_misc.c +++ b/fs/binfmt_misc.c
@@ -507,7 +507,6 @@ inode->i_mode = mode; inode->i_uid = 0; inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = current_fs_time(inode->i_sb); @@ -517,7 +516,7 @@ static void bm_clear_inode(struct inode *inode) { - kfree(inode->u.generic_ip); + kfree(inode->i_private); } static void kill_node(Node *e) @@ -545,7 +544,7 @@ static ssize_t bm_entry_read(struct file * file, char __user * buf, size_t nbytes, loff_t *ppos) { - Node *e = file->f_dentry->d_inode->u.generic_ip; + Node *e = file->f_dentry->d_inode->i_private; loff_t pos = *ppos; ssize_t res; char *page; @@ -579,7 +578,7 @@ size_t count, loff_t *ppos) { struct dentry *root; - Node *e = file->f_dentry->d_inode->u.generic_ip; + Node *e = file->f_dentry->d_inode->i_private; int res = parse_command(buffer, count); switch (res) { @@ -646,7 +645,7 @@ } e->dentry = dget(dentry); - inode->u.generic_ip = e; + inode->i_private = e; inode->i_fop = &bm_entry_operations; d_instantiate(dentry, inode);
diff --git a/fs/buffer.c b/fs/buffer.c index 71649ef..3b6d701 100644 --- a/fs/buffer.c +++ b/fs/buffer.c
@@ -2987,6 +2987,7 @@ spin_lock(&mapping->private_lock); ret = drop_buffers(page, &buffers_to_free); + spin_unlock(&mapping->private_lock); if (ret) { /* * If the filesystem writes its buffers by hand (eg ext3) @@ -2998,7 +2999,6 @@ */ clear_page_dirty(page); } - spin_unlock(&mapping->private_lock); out: if (buffers_to_free) { struct buffer_head *bh = buffers_to_free;
diff --git a/fs/char_dev.c b/fs/char_dev.c index 3483d3c..0009346 100644 --- a/fs/char_dev.c +++ b/fs/char_dev.c
@@ -19,11 +19,30 @@ #include <linux/kobj_map.h> #include <linux/cdev.h> #include <linux/mutex.h> +#include <linux/backing-dev.h> #ifdef CONFIG_KMOD #include <linux/kmod.h> #endif +/* + * capabilities for /dev/mem, /dev/kmem and similar directly mappable character + * devices + * - permits shared-mmap for read, write and/or exec + * - does not permit private mmap in NOMMU mode (can't do COW) + * - no readahead or I/O queue unplugging required + */ +struct backing_dev_info directly_mappable_cdev_bdi = { + .capabilities = ( +#ifdef CONFIG_MMU + /* permit private copies of the data to be taken */ + BDI_CAP_MAP_COPY | +#endif + /* permit direct mmap, for read, write or exec */ + BDI_CAP_MAP_DIRECT | + BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP), +}; + static struct kobj_map *cdev_map; static DEFINE_MUTEX(chrdevs_lock); @@ -461,3 +480,4 @@ EXPORT_SYMBOL(cdev_add); EXPORT_SYMBOL(register_chrdev); EXPORT_SYMBOL(unregister_chrdev); +EXPORT_SYMBOL(directly_mappable_cdev_bdi);
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index c3ef1c0..22bcf4d 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c
@@ -253,7 +253,6 @@ file data or metadata */ cifs_inode->clientCanCacheRead = FALSE; cifs_inode->clientCanCacheAll = FALSE; - cifs_inode->vfs_inode.i_blksize = CIFS_MAX_MSGSIZE; cifs_inode->vfs_inode.i_blkbits = 14; /* 2**14 = CIFS_MAX_MSGSIZE */ cifs_inode->vfs_inode.i_flags = S_NOATIME | S_NOCMTIME; INIT_LIST_HEAD(&cifs_inode->openFileList); @@ -699,8 +698,7 @@ static void cifs_destroy_inodecache(void) { - if (kmem_cache_destroy(cifs_inode_cachep)) - printk(KERN_WARNING "cifs_inode_cache: error freeing\n"); + kmem_cache_destroy(cifs_inode_cachep); } static int @@ -778,13 +776,9 @@ cifs_destroy_request_bufs(void) { mempool_destroy(cifs_req_poolp); - if (kmem_cache_destroy(cifs_req_cachep)) - printk(KERN_WARNING - "cifs_destroy_request_cache: error not all structures were freed\n"); + kmem_cache_destroy(cifs_req_cachep); mempool_destroy(cifs_sm_req_poolp); - if (kmem_cache_destroy(cifs_sm_req_cachep)) - printk(KERN_WARNING - "cifs_destroy_request_cache: cifs_small_rq free error\n"); + kmem_cache_destroy(cifs_sm_req_cachep); } static int @@ -819,13 +813,8 @@ cifs_destroy_mids(void) { mempool_destroy(cifs_mid_poolp); - if (kmem_cache_destroy(cifs_mid_cachep)) - printk(KERN_WARNING - "cifs_destroy_mids: error not all structures were freed\n"); - - if (kmem_cache_destroy(cifs_oplock_cachep)) - printk(KERN_WARNING - "error not all oplock structures were freed\n"); + kmem_cache_destroy(cifs_mid_cachep); + kmem_cache_destroy(cifs_oplock_cachep); } static int cifs_oplock_thread(void * dummyarg)
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c index 9aeb58a..b27b345 100644 --- a/fs/cifs/readdir.c +++ b/fs/cifs/readdir.c
@@ -216,10 +216,9 @@ if (allocation_size < end_of_file) cFYI(1, ("May be sparse file, allocation less than file size")); - cFYI(1, ("File Size %ld and blocks %llu and blocksize %ld", + cFYI(1, ("File Size %ld and blocks %llu", (unsigned long)tmp_inode->i_size, - (unsigned long long)tmp_inode->i_blocks, - tmp_inode->i_blksize)); + (unsigned long long)tmp_inode->i_blocks)); if (S_ISREG(tmp_inode->i_mode)) { cFYI(1, ("File inode")); tmp_inode->i_op = &cifs_file_inode_ops;
diff --git a/fs/coda/coda_linux.c b/fs/coda/coda_linux.c index 5597080..95a5425 100644 --- a/fs/coda/coda_linux.c +++ b/fs/coda/coda_linux.c
@@ -110,8 +110,6 @@ inode->i_nlink = attr->va_nlink; if (attr->va_size != -1) inode->i_size = attr->va_size; - if (attr->va_blocksize != -1) - inode->i_blksize = attr->va_blocksize; if (attr->va_size != -1) inode->i_blocks = (attr->va_size + 511) >> 9; if (attr->va_atime.tv_sec != -1)
diff --git a/fs/coda/dir.c b/fs/coda/dir.c index 71f2ea6..8651ea6 100644 --- a/fs/coda/dir.c +++ b/fs/coda/dir.c
@@ -513,7 +513,7 @@ ino_t ino; int ret, i; - vdir = (struct venus_dirent *)kmalloc(sizeof(*vdir), GFP_KERNEL); + vdir = kmalloc(sizeof(*vdir), GFP_KERNEL); if (!vdir) return -ENOMEM; i = filp->f_pos;
diff --git a/fs/coda/inode.c b/fs/coda/inode.c index 87f1dc8..88d1233 100644 --- a/fs/coda/inode.c +++ b/fs/coda/inode.c
@@ -80,8 +80,7 @@ void coda_destroy_inodecache(void) { - if (kmem_cache_destroy(coda_inode_cachep)) - printk(KERN_INFO "coda_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(coda_inode_cachep); } static int coda_remount(struct super_block *sb, int *flags, char *data)
diff --git a/fs/compat.c b/fs/compat.c index e31e9cf..ce982f6 100644 --- a/fs/compat.c +++ b/fs/compat.c
@@ -1855,7 +1855,7 @@ } while (!ret && !timeout && tsp && (ts.tv_sec || ts.tv_nsec)); - if (tsp && !(current->personality & STICKY_TIMEOUTS)) { + if (ret == 0 && tsp && !(current->personality & STICKY_TIMEOUTS)) { struct compat_timespec rts; rts.tv_sec = timeout / HZ; @@ -1866,7 +1866,8 @@ } if (compat_timespec_compare(&rts, &ts) >= 0) rts = ts; - copy_to_user(tsp, &rts, sizeof(rts)); + if (copy_to_user(tsp, &rts, sizeof(rts))) + ret = -EFAULT; } if (ret == -ERESTARTNOHAND) {
diff --git a/fs/configfs/file.c b/fs/configfs/file.c index f499803..85105e5 100644 --- a/fs/configfs/file.c +++ b/fs/configfs/file.c
@@ -274,9 +274,8 @@ /* No error? Great, allocate a buffer for the file, and store it * it in file->private_data for easy access. */ - buffer = kmalloc(sizeof(struct configfs_buffer),GFP_KERNEL); + buffer = kzalloc(sizeof(struct configfs_buffer),GFP_KERNEL); if (buffer) { - memset(buffer,0,sizeof(struct configfs_buffer)); init_MUTEX(&buffer->sem); buffer->needs_read_fill = 1; buffer->ops = ops;
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c index e14488c..fb18917 100644 --- a/fs/configfs/inode.c +++ b/fs/configfs/inode.c
@@ -76,11 +76,10 @@ if (!sd_iattr) { /* setting attributes for the first time, allocate now */ - sd_iattr = kmalloc(sizeof(struct iattr), GFP_KERNEL); + sd_iattr = kzalloc(sizeof(struct iattr), GFP_KERNEL); if (!sd_iattr) return -ENOMEM; /* assign default attributes */ - memset(sd_iattr, 0, sizeof(struct iattr)); sd_iattr->ia_mode = sd->s_mode; sd_iattr->ia_uid = 0; sd_iattr->ia_gid = 0; @@ -136,7 +135,6 @@ { struct inode * inode = new_inode(configfs_sb); if (inode) { - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mapping->a_ops = &configfs_aops; inode->i_mapping->backing_dev_info = &configfs_backing_dev_info;
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 223c043..ad96b69 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c
@@ -73,7 +73,6 @@ inode->i_uid = cramfs_inode->uid; inode->i_size = cramfs_inode->size; inode->i_blocks = (cramfs_inode->size - 1) / 512 + 1; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_gid = cramfs_inode->gid; /* Struct copy intentional */ inode->i_mtime = inode->i_atime = inode->i_ctime = zerotime; @@ -242,11 +241,10 @@ sb->s_flags |= MS_RDONLY; - sbi = kmalloc(sizeof(struct cramfs_sb_info), GFP_KERNEL); + sbi = kzalloc(sizeof(struct cramfs_sb_info), GFP_KERNEL); if (!sbi) return -ENOMEM; sb->s_fs_info = sbi; - memset(sbi, 0, sizeof(struct cramfs_sb_info)); /* Invalidate the read buffers on mount: think disk change.. */ mutex_lock(&read_mutex);
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c index 39640fd..bf3901a 100644 --- a/fs/debugfs/file.c +++ b/fs/debugfs/file.c
@@ -32,8 +32,8 @@ static int default_open(struct inode *inode, struct file *file) { - if (inode->u.generic_ip) - file->private_data = inode->u.generic_ip; + if (inode->i_private) + file->private_data = inode->i_private; return 0; } @@ -55,12 +55,11 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_u8, debugfs_u8_get, debugfs_u8_set, "%llu\n"); /** - * debugfs_create_u8 - create a file in the debugfs filesystem that is used to read and write an unsigned 8 bit value. - * + * debugfs_create_u8 - create a debugfs file that is used to read and write an unsigned 8-bit value * @name: a pointer to a string containing the name of the file to create. * @mode: the permission that the file should have * @parent: a pointer to the parent dentry for this file. This should be a - * directory dentry if set. If this paramater is NULL, then the + * directory dentry if set. If this parameter is %NULL, then the * file will be created in the root of the debugfs filesystem. * @value: a pointer to the variable that the file should read to and write * from. @@ -72,11 +71,11 @@ * This function will return a pointer to a dentry if it succeeds. This * pointer must be passed to the debugfs_remove() function when the file is * to be removed (no automatic cleanup happens if your module is unloaded, - * you are responsible here.) If an error occurs, NULL will be returned. + * you are responsible here.) If an error occurs, %NULL will be returned. * - * If debugfs is not enabled in the kernel, the value -ENODEV will be + * If debugfs is not enabled in the kernel, the value -%ENODEV will be * returned. It is not wise to check for this value, but rather, check for - * NULL or !NULL instead as to eliminate the need for #ifdef in the calling + * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling * code. */ struct dentry *debugfs_create_u8(const char *name, mode_t mode, @@ -97,12 +96,11 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_u16, debugfs_u16_get, debugfs_u16_set, "%llu\n"); /** - * debugfs_create_u16 - create a file in the debugfs filesystem that is used to read and write an unsigned 16 bit value. - * + * debugfs_create_u16 - create a debugfs file that is used to read and write an unsigned 16-bit value * @name: a pointer to a string containing the name of the file to create. * @mode: the permission that the file should have * @parent: a pointer to the parent dentry for this file. This should be a - * directory dentry if set. If this paramater is NULL, then the + * directory dentry if set. If this parameter is %NULL, then the * file will be created in the root of the debugfs filesystem. * @value: a pointer to the variable that the file should read to and write * from. @@ -114,11 +112,11 @@ * This function will return a pointer to a dentry if it succeeds. This * pointer must be passed to the debugfs_remove() function when the file is * to be removed (no automatic cleanup happens if your module is unloaded, - * you are responsible here.) If an error occurs, NULL will be returned. + * you are responsible here.) If an error occurs, %NULL will be returned. * - * If debugfs is not enabled in the kernel, the value -ENODEV will be + * If debugfs is not enabled in the kernel, the value -%ENODEV will be * returned. It is not wise to check for this value, but rather, check for - * NULL or !NULL instead as to eliminate the need for #ifdef in the calling + * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling * code. */ struct dentry *debugfs_create_u16(const char *name, mode_t mode, @@ -139,12 +137,11 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_u32, debugfs_u32_get, debugfs_u32_set, "%llu\n"); /** - * debugfs_create_u32 - create a file in the debugfs filesystem that is used to read and write an unsigned 32 bit value. - * + * debugfs_create_u32 - create a debugfs file that is used to read and write an unsigned 32-bit value * @name: a pointer to a string containing the name of the file to create. * @mode: the permission that the file should have * @parent: a pointer to the parent dentry for this file. This should be a - * directory dentry if set. If this paramater is NULL, then the + * directory dentry if set. If this parameter is %NULL, then the * file will be created in the root of the debugfs filesystem. * @value: a pointer to the variable that the file should read to and write * from. @@ -156,11 +153,11 @@ * This function will return a pointer to a dentry if it succeeds. This * pointer must be passed to the debugfs_remove() function when the file is * to be removed (no automatic cleanup happens if your module is unloaded, - * you are responsible here.) If an error occurs, NULL will be returned. + * you are responsible here.) If an error occurs, %NULL will be returned. * - * If debugfs is not enabled in the kernel, the value -ENODEV will be + * If debugfs is not enabled in the kernel, the value -%ENODEV will be * returned. It is not wise to check for this value, but rather, check for - * NULL or !NULL instead as to eliminate the need for #ifdef in the calling + * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling * code. */ struct dentry *debugfs_create_u32(const char *name, mode_t mode, @@ -219,12 +216,11 @@ }; /** - * debugfs_create_bool - create a file in the debugfs filesystem that is used to read and write a boolean value. - * + * debugfs_create_bool - create a debugfs file that is used to read and write a boolean value * @name: a pointer to a string containing the name of the file to create. * @mode: the permission that the file should have * @parent: a pointer to the parent dentry for this file. This should be a - * directory dentry if set. If this paramater is NULL, then the + * directory dentry if set. If this parameter is %NULL, then the * file will be created in the root of the debugfs filesystem. * @value: a pointer to the variable that the file should read to and write * from. @@ -236,11 +232,11 @@ * This function will return a pointer to a dentry if it succeeds. This * pointer must be passed to the debugfs_remove() function when the file is * to be removed (no automatic cleanup happens if your module is unloaded, - * you are responsible here.) If an error occurs, NULL will be returned. + * you are responsible here.) If an error occurs, %NULL will be returned. * - * If debugfs is not enabled in the kernel, the value -ENODEV will be + * If debugfs is not enabled in the kernel, the value -%ENODEV will be * returned. It is not wise to check for this value, but rather, check for - * NULL or !NULL instead as to eliminate the need for #ifdef in the calling + * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling * code. */ struct dentry *debugfs_create_bool(const char *name, mode_t mode, @@ -264,13 +260,11 @@ }; /** - * debugfs_create_blob - create a file in the debugfs filesystem that is - * used to read and write a binary blob. - * + * debugfs_create_blob - create a debugfs file that is used to read and write a binary blob * @name: a pointer to a string containing the name of the file to create. * @mode: the permission that the file should have * @parent: a pointer to the parent dentry for this file. This should be a - * directory dentry if set. If this paramater is NULL, then the + * directory dentry if set. If this parameter is %NULL, then the * file will be created in the root of the debugfs filesystem. * @blob: a pointer to a struct debugfs_blob_wrapper which contains a pointer * to the blob data and the size of the data. @@ -282,11 +276,11 @@ * This function will return a pointer to a dentry if it succeeds. This * pointer must be passed to the debugfs_remove() function when the file is * to be removed (no automatic cleanup happens if your module is unloaded, - * you are responsible here.) If an error occurs, NULL will be returned. + * you are responsible here.) If an error occurs, %NULL will be returned. * - * If debugfs is not enabled in the kernel, the value -ENODEV will be + * If debugfs is not enabled in the kernel, the value -%ENODEV will be * returned. It is not wise to check for this value, but rather, check for - * NULL or !NULL instead as to eliminate the need for #ifdef in the calling + * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling * code. */ struct dentry *debugfs_create_blob(const char *name, mode_t mode,
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index e8ae304..269e649 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c
@@ -40,7 +40,6 @@ inode->i_mode = mode; inode->i_uid = 0; inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; switch (mode & S_IFMT) { @@ -162,14 +161,13 @@ /** * debugfs_create_file - create a file in the debugfs filesystem - * * @name: a pointer to a string containing the name of the file to create. * @mode: the permission that the file should have * @parent: a pointer to the parent dentry for this file. This should be a * directory dentry if set. If this paramater is NULL, then the * file will be created in the root of the debugfs filesystem. * @data: a pointer to something that the caller will want to get to later - * on. The inode.u.generic_ip pointer will point to this value on + * on. The inode.i_private pointer will point to this value on * the open() call. * @fops: a pointer to a struct file_operations that should be used for * this file. @@ -182,11 +180,11 @@ * This function will return a pointer to a dentry if it succeeds. This * pointer must be passed to the debugfs_remove() function when the file is * to be removed (no automatic cleanup happens if your module is unloaded, - * you are responsible here.) If an error occurs, NULL will be returned. + * you are responsible here.) If an error occurs, %NULL will be returned. * - * If debugfs is not enabled in the kernel, the value -ENODEV will be + * If debugfs is not enabled in the kernel, the value -%ENODEV will be * returned. It is not wise to check for this value, but rather, check for - * NULL or !NULL instead as to eliminate the need for #ifdef in the calling + * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling * code. */ struct dentry *debugfs_create_file(const char *name, mode_t mode, @@ -210,7 +208,7 @@ if (dentry->d_inode) { if (data) - dentry->d_inode->u.generic_ip = data; + dentry->d_inode->i_private = data; if (fops) dentry->d_inode->i_fop = fops; } @@ -221,7 +219,6 @@ /** * debugfs_create_dir - create a directory in the debugfs filesystem - * * @name: a pointer to a string containing the name of the directory to * create. * @parent: a pointer to the parent dentry for this file. This should be a @@ -233,11 +230,11 @@ * This function will return a pointer to a dentry if it succeeds. This * pointer must be passed to the debugfs_remove() function when the file is * to be removed (no automatic cleanup happens if your module is unloaded, - * you are responsible here.) If an error occurs, NULL will be returned. + * you are responsible here.) If an error occurs, %NULL will be returned. * - * If debugfs is not enabled in the kernel, the value -ENODEV will be + * If debugfs is not enabled in the kernel, the value -%ENODEV will be * returned. It is not wise to check for this value, but rather, check for - * NULL or !NULL instead as to eliminate the need for #ifdef in the calling + * %NULL or !%NULL instead as to eliminate the need for #ifdef in the calling * code. */ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent) @@ -250,7 +247,6 @@ /** * debugfs_remove - removes a file or directory from the debugfs filesystem - * * @dentry: a pointer to a the dentry of the file or directory to be * removed. *
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c index f7aef5b..5f7b5a6 100644 --- a/fs/devpts/inode.c +++ b/fs/devpts/inode.c
@@ -113,7 +113,6 @@ inode->i_ino = 1; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; inode->i_blocks = 0; - inode->i_blksize = 1024; inode->i_uid = inode->i_gid = 0; inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR; inode->i_op = &simple_dir_inode_operations; @@ -172,12 +171,11 @@ return -ENOMEM; inode->i_ino = number+2; - inode->i_blksize = 1024; inode->i_uid = config.setuid ? config.uid : current->fsuid; inode->i_gid = config.setgid ? config.gid : current->fsgid; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; init_special_inode(inode, S_IFCHR|config.mode, device); - inode->u.generic_ip = tty; + inode->i_private = tty; dentry = get_node(number); if (!IS_ERR(dentry) && !dentry->d_inode) @@ -196,7 +194,7 @@ tty = NULL; if (!IS_ERR(dentry)) { if (dentry->d_inode) - tty = dentry->d_inode->u.generic_ip; + tty = dentry->d_inode->i_private; dput(dentry); }
diff --git a/fs/efs/super.c b/fs/efs/super.c index 8ac2462..b3f5065 100644 --- a/fs/efs/super.c +++ b/fs/efs/super.c
@@ -90,8 +90,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(efs_inode_cachep)) - printk(KERN_INFO "efs_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(efs_inode_cachep); } static void efs_put_super(struct super_block *s) @@ -248,11 +247,10 @@ struct buffer_head *bh; struct inode *root; - sb = kmalloc(sizeof(struct efs_sb_info), GFP_KERNEL); + sb = kzalloc(sizeof(struct efs_sb_info), GFP_KERNEL); if (!sb) return -ENOMEM; s->s_fs_info = sb; - memset(sb, 0, sizeof(struct efs_sb_info)); s->s_magic = EFS_SUPER_MAGIC; if (!sb_set_blocksize(s, EFS_BLOCKSIZE)) {
diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 3a35674..8d54433 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c
@@ -1590,7 +1590,6 @@ inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; - inode->i_blksize = PAGE_SIZE; return inode; eexit_1:
diff --git a/fs/exec.c b/fs/exec.c index 54135df..97df6e0 100644 --- a/fs/exec.c +++ b/fs/exec.c
@@ -595,7 +595,7 @@ if (!newsighand) return -ENOMEM; - if (thread_group_empty(current)) + if (thread_group_empty(tsk)) goto no_thread_group; /* @@ -620,17 +620,17 @@ * Reparenting needs write_lock on tasklist_lock, * so it is safe to do it under read_lock. */ - if (unlikely(current->group_leader == child_reaper)) - child_reaper = current; + if (unlikely(tsk->group_leader == child_reaper)) + child_reaper = tsk; - zap_other_threads(current); + zap_other_threads(tsk); read_unlock(&tasklist_lock); /* * Account for the thread group leader hanging around: */ count = 1; - if (!thread_group_leader(current)) { + if (!thread_group_leader(tsk)) { count = 2; /* * The SIGALRM timer survives the exec, but needs to point @@ -639,14 +639,14 @@ * synchronize with any firing (by calling del_timer_sync) * before we can safely let the old group leader die. */ - sig->tsk = current; + sig->tsk = tsk; spin_unlock_irq(lock); if (hrtimer_cancel(&sig->real_timer)) hrtimer_restart(&sig->real_timer); spin_lock_irq(lock); } while (atomic_read(&sig->count) > count) { - sig->group_exit_task = current; + sig->group_exit_task = tsk; sig->notify_count = count; __set_current_state(TASK_UNINTERRUPTIBLE); spin_unlock_irq(lock); @@ -662,13 +662,13 @@ * do is to wait for the thread group leader to become inactive, * and to assume its PID: */ - if (!thread_group_leader(current)) { + if (!thread_group_leader(tsk)) { /* * Wait for the thread group leader to be a zombie. * It should already be zombie at this point, most * of the time. */ - leader = current->group_leader; + leader = tsk->group_leader; while (leader->exit_state != EXIT_ZOMBIE) yield(); @@ -682,12 +682,12 @@ * When we take on its identity by switching to its PID, we * also take its birthdate (always earlier than our own). */ - current->start_time = leader->start_time; + tsk->start_time = leader->start_time; write_lock_irq(&tasklist_lock); - BUG_ON(leader->tgid != current->tgid); - BUG_ON(current->pid == current->tgid); + BUG_ON(leader->tgid != tsk->tgid); + BUG_ON(tsk->pid == tsk->tgid); /* * An exec() starts a new thread group with the * TGID of the previous thread group. Rehash the @@ -696,24 +696,21 @@ */ /* Become a process group leader with the old leader's pid. - * Note: The old leader also uses thispid until release_task + * The old leader becomes a thread of the this thread group. + * Note: The old leader also uses this pid until release_task * is called. Odd but simple and correct. */ - detach_pid(current, PIDTYPE_PID); - current->pid = leader->pid; - attach_pid(current, PIDTYPE_PID, current->pid); - attach_pid(current, PIDTYPE_PGID, current->signal->pgrp); - attach_pid(current, PIDTYPE_SID, current->signal->session); - list_replace_rcu(&leader->tasks, ¤t->tasks); + detach_pid(tsk, PIDTYPE_PID); + tsk->pid = leader->pid; + attach_pid(tsk, PIDTYPE_PID, tsk->pid); + transfer_pid(leader, tsk, PIDTYPE_PGID); + transfer_pid(leader, tsk, PIDTYPE_SID); + list_replace_rcu(&leader->tasks, &tsk->tasks); - current->group_leader = current; - leader->group_leader = current; + tsk->group_leader = tsk; + leader->group_leader = tsk; - /* Reduce leader to a thread */ - detach_pid(leader, PIDTYPE_PGID); - detach_pid(leader, PIDTYPE_SID); - - current->exit_signal = SIGCHLD; + tsk->exit_signal = SIGCHLD; BUG_ON(leader->exit_state != EXIT_ZOMBIE); leader->exit_state = EXIT_DEAD; @@ -753,7 +750,7 @@ spin_lock(&oldsighand->siglock); spin_lock_nested(&newsighand->siglock, SINGLE_DEPTH_NESTING); - rcu_assign_pointer(current->sighand, newsighand); + rcu_assign_pointer(tsk->sighand, newsighand); recalc_sigpending(); spin_unlock(&newsighand->siglock); @@ -764,7 +761,7 @@ kmem_cache_free(sighand_cachep, oldsighand); } - BUG_ON(!thread_group_leader(current)); + BUG_ON(!thread_group_leader(tsk)); return 0; }
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c index da52b4a..7c420b8 100644 --- a/fs/ext2/acl.c +++ b/fs/ext2/acl.c
@@ -89,8 +89,8 @@ size_t n; *size = ext2_acl_size(acl->a_count); - ext_acl = (ext2_acl_header *)kmalloc(sizeof(ext2_acl_header) + - acl->a_count * sizeof(ext2_acl_entry), GFP_KERNEL); + ext_acl = kmalloc(sizeof(ext2_acl_header) + acl->a_count * + sizeof(ext2_acl_entry), GFP_KERNEL); if (!ext_acl) return ERR_PTR(-ENOMEM); ext_acl->a_version = cpu_to_le32(EXT2_ACL_VERSION);
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c index 695f69c..2cb545b 100644 --- a/fs/ext2/ialloc.c +++ b/fs/ext2/ialloc.c
@@ -574,7 +574,6 @@ inode->i_mode = mode; inode->i_ino = ino; - inode->i_blksize = PAGE_SIZE; /* This is the optimal IO size (for stat), not the fs block size */ inode->i_blocks = 0; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; memset(ei->i_data, 0, sizeof(ei->i_data));
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index fb4d322..dd4e14c 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c
@@ -1094,7 +1094,6 @@ brelse (bh); goto bad_inode; } - inode->i_blksize = PAGE_SIZE; /* This is the optimal IO size (for stat), not the fs block size */ inode->i_blocks = le32_to_cpu(raw_inode->i_blocks); ei->i_flags = le32_to_cpu(raw_inode->i_flags); ei->i_faddr = le32_to_cpu(raw_inode->i_faddr);
diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 4286ff6..513cd42 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c
@@ -184,8 +184,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(ext2_inode_cachep)) - printk(KERN_INFO "ext2_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(ext2_inode_cachep); } static void ext2_clear_inode(struct inode *inode) @@ -544,17 +543,24 @@ int i; int desc_block = 0; struct ext2_sb_info *sbi = EXT2_SB(sb); - unsigned long block = le32_to_cpu(sbi->s_es->s_first_data_block); + unsigned long first_block = le32_to_cpu(sbi->s_es->s_first_data_block); + unsigned long last_block; struct ext2_group_desc * gdp = NULL; ext2_debug ("Checking group descriptors"); for (i = 0; i < sbi->s_groups_count; i++) { + if (i == sbi->s_groups_count - 1) + last_block = le32_to_cpu(sbi->s_es->s_blocks_count) - 1; + else + last_block = first_block + + (EXT2_BLOCKS_PER_GROUP(sb) - 1); + if ((i % EXT2_DESC_PER_BLOCK(sb)) == 0) gdp = (struct ext2_group_desc *) sbi->s_group_desc[desc_block++]->b_data; - if (le32_to_cpu(gdp->bg_block_bitmap) < block || - le32_to_cpu(gdp->bg_block_bitmap) >= block + EXT2_BLOCKS_PER_GROUP(sb)) + if (le32_to_cpu(gdp->bg_block_bitmap) < first_block || + le32_to_cpu(gdp->bg_block_bitmap) > last_block) { ext2_error (sb, "ext2_check_descriptors", "Block bitmap for group %d" @@ -562,8 +568,8 @@ i, (unsigned long) le32_to_cpu(gdp->bg_block_bitmap)); return 0; } - if (le32_to_cpu(gdp->bg_inode_bitmap) < block || - le32_to_cpu(gdp->bg_inode_bitmap) >= block + EXT2_BLOCKS_PER_GROUP(sb)) + if (le32_to_cpu(gdp->bg_inode_bitmap) < first_block || + le32_to_cpu(gdp->bg_inode_bitmap) > last_block) { ext2_error (sb, "ext2_check_descriptors", "Inode bitmap for group %d" @@ -571,9 +577,9 @@ i, (unsigned long) le32_to_cpu(gdp->bg_inode_bitmap)); return 0; } - if (le32_to_cpu(gdp->bg_inode_table) < block || - le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group >= - block + EXT2_BLOCKS_PER_GROUP(sb)) + if (le32_to_cpu(gdp->bg_inode_table) < first_block || + le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group > + last_block) { ext2_error (sb, "ext2_check_descriptors", "Inode table for group %d" @@ -581,7 +587,7 @@ i, (unsigned long) le32_to_cpu(gdp->bg_inode_table)); return 0; } - block += EXT2_BLOCKS_PER_GROUP(sb); + first_block += EXT2_BLOCKS_PER_GROUP(sb); gdp++; } return 1; @@ -648,11 +654,10 @@ int i, j; __le32 features; - sbi = kmalloc(sizeof(*sbi), GFP_KERNEL); + sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); if (!sbi) return -ENOMEM; sb->s_fs_info = sbi; - memset(sbi, 0, sizeof(*sbi)); /* * See what the current blocksize for the device is, and @@ -861,10 +866,9 @@ if (EXT2_BLOCKS_PER_GROUP(sb) == 0) goto cantfind_ext2; - sbi->s_groups_count = (le32_to_cpu(es->s_blocks_count) - - le32_to_cpu(es->s_first_data_block) + - EXT2_BLOCKS_PER_GROUP(sb) - 1) / - EXT2_BLOCKS_PER_GROUP(sb); + sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) - + le32_to_cpu(es->s_first_data_block) - 1) + / EXT2_BLOCKS_PER_GROUP(sb)) + 1; db_count = (sbi->s_groups_count + EXT2_DESC_PER_BLOCK(sb) - 1) / EXT2_DESC_PER_BLOCK(sb); sbi->s_group_desc = kmalloc (db_count * sizeof (struct buffer_head *), GFP_KERNEL);
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c index 86ae8e9..af52a7f 100644 --- a/fs/ext2/xattr.c +++ b/fs/ext2/xattr.c
@@ -521,11 +521,10 @@ } } else { /* Allocate a buffer where we construct the new block. */ - header = kmalloc(sb->s_blocksize, GFP_KERNEL); + header = kzalloc(sb->s_blocksize, GFP_KERNEL); error = -ENOMEM; if (header == NULL) goto cleanup; - memset(header, 0, sb->s_blocksize); end = (char *)header + sb->s_blocksize; header->h_magic = cpu_to_le32(EXT2_XATTR_MAGIC); header->h_blocks = header->h_refcount = cpu_to_le32(1);
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c index 0d21d55..1e5038d 100644 --- a/fs/ext3/acl.c +++ b/fs/ext3/acl.c
@@ -90,8 +90,8 @@ size_t n; *size = ext3_acl_size(acl->a_count); - ext_acl = (ext3_acl_header *)kmalloc(sizeof(ext3_acl_header) + - acl->a_count * sizeof(ext3_acl_entry), GFP_KERNEL); + ext_acl = kmalloc(sizeof(ext3_acl_header) + acl->a_count * + sizeof(ext3_acl_entry), GFP_KERNEL); if (!ext_acl) return ERR_PTR(-ENOMEM); ext_acl->a_version = cpu_to_le32(EXT3_ACL_VERSION); @@ -258,7 +258,7 @@ default: return -EINVAL; } - if (acl) { + if (acl) { value = ext3_acl_to_disk(acl, &size); if (IS_ERR(value)) return (int)PTR_ERR(value);
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c index 063d994..b41a7d7 100644 --- a/fs/ext3/balloc.c +++ b/fs/ext3/balloc.c
@@ -38,6 +38,13 @@ #define in_range(b, first, len) ((b) >= (first) && (b) <= (first) + (len) - 1) +/** + * ext3_get_group_desc() -- load group descriptor from disk + * @sb: super block + * @block_group: given block group + * @bh: pointer to the buffer head to store the block + * group descriptor + */ struct ext3_group_desc * ext3_get_group_desc(struct super_block * sb, unsigned int block_group, struct buffer_head ** bh) @@ -73,8 +80,12 @@ return desc + offset; } -/* - * Read the bitmap for a given block_group, reading into the specified +/** + * read_block_bitmap() + * @sb: super block + * @block_group: given block group + * + * Read the bitmap for a given block_group, reading into the specified * slot in the superblock's bitmap cache. * * Return buffer_head on success or NULL in case of failure. @@ -103,15 +114,22 @@ * Operations include: * dump, find, add, remove, is_empty, find_next_reservable_window, etc. * - * We use sorted double linked list for the per-filesystem reservation - * window list. (like in vm_region). + * We use a red-black tree to represent per-filesystem reservation + * windows. * - * Initially, we keep those small operations in the abstract functions, - * so later if we need a better searching tree than double linked-list, - * we could easily switch to that without changing too much - * code. */ -#if 0 + +/** + * __rsv_window_dump() -- Dump the filesystem block allocation reservation map + * @rb_root: root of per-filesystem reservation rb tree + * @verbose: verbose mode + * @fn: function which wishes to dump the reservation map + * + * If verbose is turned on, it will print the whole block reservation + * windows(start, end). Otherwise, it will only print out the "bad" windows, + * those windows that overlap with their immediate neighbors. + */ +#if 1 static void __rsv_window_dump(struct rb_root *root, int verbose, const char *fn) { @@ -129,7 +147,7 @@ rsv = list_entry(n, struct ext3_reserve_window_node, rsv_node); if (verbose) printk("reservation window 0x%p " - "start: %d, end: %d\n", + "start: %lu, end: %lu\n", rsv, rsv->rsv_start, rsv->rsv_end); if (rsv->rsv_start && rsv->rsv_start >= rsv->rsv_end) { printk("Bad reservation %p (start >= end)\n", @@ -161,6 +179,22 @@ #define rsv_window_dump(root, verbose) do {} while (0) #endif +/** + * goal_in_my_reservation() + * @rsv: inode's reservation window + * @grp_goal: given goal block relative to the allocation block group + * @group: the current allocation block group + * @sb: filesystem super block + * + * Test if the given goal block (group relative) is within the file's + * own block reservation window range. + * + * If the reservation window is outside the goal allocation group, return 0; + * grp_goal (given goal block) could be -1, which means no specific + * goal block. In this case, always return 1. + * If the goal block is within the reservation window, return 1; + * otherwise, return 0; + */ static int goal_in_my_reservation(struct ext3_reserve_window *rsv, ext3_grpblk_t grp_goal, unsigned int group, struct super_block * sb) @@ -168,7 +202,7 @@ ext3_fsblk_t group_first_block, group_last_block; group_first_block = ext3_group_first_block_no(sb, group); - group_last_block = group_first_block + EXT3_BLOCKS_PER_GROUP(sb) - 1; + group_last_block = group_first_block + (EXT3_BLOCKS_PER_GROUP(sb) - 1); if ((rsv->_rsv_start > group_last_block) || (rsv->_rsv_end < group_first_block)) @@ -179,7 +213,11 @@ return 1; } -/* +/** + * search_reserve_window() + * @rb_root: root of reservation tree + * @goal: target allocation block + * * Find the reserved window which includes the goal, or the previous one * if the goal is not in any window. * Returns NULL if there are no windows or if all windows start after the goal. @@ -216,6 +254,13 @@ return rsv; } +/** + * ext3_rsv_window_add() -- Insert a window to the block reservation rb tree. + * @sb: super block + * @rsv: reservation window to add + * + * Must be called with rsv_lock hold. + */ void ext3_rsv_window_add(struct super_block *sb, struct ext3_reserve_window_node *rsv) { @@ -236,14 +281,25 @@ p = &(*p)->rb_left; else if (start > this->rsv_end) p = &(*p)->rb_right; - else + else { + rsv_window_dump(root, 1); BUG(); + } } rb_link_node(node, parent, p); rb_insert_color(node, root); } +/** + * ext3_rsv_window_remove() -- unlink a window from the reservation rb tree + * @sb: super block + * @rsv: reservation window to remove + * + * Mark the block reservation window as not allocated, and unlink it + * from the filesystem reservation window rb tree. Must be called with + * rsv_lock hold. + */ static void rsv_window_remove(struct super_block *sb, struct ext3_reserve_window_node *rsv) { @@ -253,11 +309,39 @@ rb_erase(&rsv->rsv_node, &EXT3_SB(sb)->s_rsv_window_root); } +/* + * rsv_is_empty() -- Check if the reservation window is allocated. + * @rsv: given reservation window to check + * + * returns 1 if the end block is EXT3_RESERVE_WINDOW_NOT_ALLOCATED. + */ static inline int rsv_is_empty(struct ext3_reserve_window *rsv) { /* a valid reservation end block could not be 0 */ - return (rsv->_rsv_end == EXT3_RESERVE_WINDOW_NOT_ALLOCATED); + return rsv->_rsv_end == EXT3_RESERVE_WINDOW_NOT_ALLOCATED; } + +/** + * ext3_init_block_alloc_info() + * @inode: file inode structure + * + * Allocate and initialize the reservation window structure, and + * link the window to the ext3 inode structure at last + * + * The reservation window structure is only dynamically allocated + * and linked to ext3 inode the first time the open file + * needs a new block. So, before every ext3_new_block(s) call, for + * regular files, we should check whether the reservation window + * structure exists or not. In the latter case, this function is called. + * Fail to do so will result in block reservation being turned off for that + * open file. + * + * This function is called from ext3_get_blocks_handle(), also called + * when setting the reservation window size through ioctl before the file + * is open for write (needs block allocation). + * + * Needs truncate_mutex protection prior to call this function. + */ void ext3_init_block_alloc_info(struct inode *inode) { struct ext3_inode_info *ei = EXT3_I(inode); @@ -271,7 +355,7 @@ rsv->rsv_start = EXT3_RESERVE_WINDOW_NOT_ALLOCATED; rsv->rsv_end = EXT3_RESERVE_WINDOW_NOT_ALLOCATED; - /* + /* * if filesystem is mounted with NORESERVATION, the goal * reservation window size is set to zero to indicate * block reservation is off @@ -287,6 +371,19 @@ ei->i_block_alloc_info = block_i; } +/** + * ext3_discard_reservation() + * @inode: inode + * + * Discard(free) block reservation window on last file close, or truncate + * or at last iput(). + * + * It is being called in three cases: + * ext3_release_file(): last writer close the file + * ext3_clear_inode(): last iput(), when nobody link to this file. + * ext3_truncate(): when the block indirect map is about to change. + * + */ void ext3_discard_reservation(struct inode *inode) { struct ext3_inode_info *ei = EXT3_I(inode); @@ -306,7 +403,14 @@ } } -/* Free given blocks, update quota and i_blocks field */ +/** + * ext3_free_blocks_sb() -- Free given blocks and update quota + * @handle: handle to this transaction + * @sb: super block + * @block: start physcial block to free + * @count: number of blocks to free + * @pdquot_freed_blocks: pointer to quota + */ void ext3_free_blocks_sb(handle_t *handle, struct super_block *sb, ext3_fsblk_t block, unsigned long count, unsigned long *pdquot_freed_blocks) @@ -419,8 +523,8 @@ } /* @@@ This prevents newly-allocated data from being * freed and then reallocated within the same - * transaction. - * + * transaction. + * * Ideally we would want to allow that to happen, but to * do so requires making journal_forget() capable of * revoking the queued write of a data block, which @@ -433,7 +537,7 @@ * safe not to set the allocation bit in the committed * bitmap, because we know that there is no outstanding * activity on the buffer any more and so it is safe to - * reallocate it. + * reallocate it. */ BUFFER_TRACE(bitmap_bh, "set in b_committed_data"); J_ASSERT_BH(bitmap_bh, @@ -490,7 +594,13 @@ return; } -/* Free given blocks, update quota and i_blocks field */ +/** + * ext3_free_blocks() -- Free given blocks and update quota + * @handle: handle for this transaction + * @inode: inode + * @block: start physical block to free + * @count: number of blocks to count + */ void ext3_free_blocks(handle_t *handle, struct inode *inode, ext3_fsblk_t block, unsigned long count) { @@ -508,7 +618,11 @@ return; } -/* +/** + * ext3_test_allocatable() + * @nr: given allocation block group + * @bh: bufferhead contains the bitmap of the given block group + * * For ext3 allocations, we must not reuse any blocks which are * allocated in the bitmap buffer's "last committed data" copy. This * prevents deletes from freeing up the page for reuse until we have @@ -518,7 +632,7 @@ * data would allow the old block to be overwritten before the * transaction committed (because we force data to disk before commit). * This would lead to corruption if we crashed between overwriting the - * data and committing the delete. + * data and committing the delete. * * @@@ We may want to make this allocation behaviour conditional on * data-writes at some point, and disable it for metadata allocations or @@ -541,6 +655,16 @@ return ret; } +/** + * bitmap_search_next_usable_block() + * @start: the starting block (group relative) of the search + * @bh: bufferhead contains the block group bitmap + * @maxblocks: the ending block (group relative) of the reservation + * + * The bitmap search --- search forward alternately through the actual + * bitmap on disk and the last-committed copy in journal, until we find a + * bit free in both bitmaps. + */ static ext3_grpblk_t bitmap_search_next_usable_block(ext3_grpblk_t start, struct buffer_head *bh, ext3_grpblk_t maxblocks) @@ -548,11 +672,6 @@ ext3_grpblk_t next; struct journal_head *jh = bh2jh(bh); - /* - * The bitmap search --- search forward alternately through the actual - * bitmap and the last-committed copy until we find a bit free in - * both - */ while (start < maxblocks) { next = ext3_find_next_zero_bit(bh->b_data, maxblocks, start); if (next >= maxblocks) @@ -562,14 +681,20 @@ jbd_lock_bh_state(bh); if (jh->b_committed_data) start = ext3_find_next_zero_bit(jh->b_committed_data, - maxblocks, next); + maxblocks, next); jbd_unlock_bh_state(bh); } return -1; } -/* - * Find an allocatable block in a bitmap. We honour both the bitmap and +/** + * find_next_usable_block() + * @start: the starting block (group relative) to find next + * allocatable block in bitmap. + * @bh: bufferhead contains the block group bitmap + * @maxblocks: the ending block (group relative) for the search + * + * Find an allocatable block in a bitmap. We honor both the bitmap and * its last-committed copy (if that exists), and perform the "most * appropriate allocation" algorithm of looking for a free block near * the initial goal; then for a free byte somewhere in the bitmap; then @@ -584,7 +709,7 @@ if (start > 0) { /* - * The goal was occupied; search forward for a free + * The goal was occupied; search forward for a free * block within the next XX blocks. * * end_goal is more or less random, but it has to be @@ -620,7 +745,11 @@ return here; } -/* +/** + * claim_block() + * @block: the free block (group relative) to allocate + * @bh: the bufferhead containts the block group bitmap + * * We think we can allocate this block in this bitmap. Try to set the bit. * If that succeeds then check that nobody has allocated and then freed the * block since we saw that is was not marked in b_committed_data. If it _was_ @@ -646,7 +775,26 @@ return ret; } -/* +/** + * ext3_try_to_allocate() + * @sb: superblock + * @handle: handle to this transaction + * @group: given allocation block group + * @bitmap_bh: bufferhead holds the block bitmap + * @grp_goal: given target block within the group + * @count: target number of blocks to allocate + * @my_rsv: reservation window + * + * Attempt to allocate blocks within a give range. Set the range of allocation + * first, then find the first free bit(s) from the bitmap (within the range), + * and at last, allocate the blocks by claiming the found free bit as allocated. + * + * To set the range of this allocation: + * if there is a reservation window, only try to allocate block(s) from the + * file's own reservation window; + * Otherwise, the allocation range starts from the give goal block, ends at + * the block group's last block. + * * If we failed to allocate the desired block then we may end up crossing to a * new bitmap. In that case we must release write access to the old one via * ext3_journal_release_buffer(), else we'll run out of credits. @@ -703,7 +851,8 @@ } start = grp_goal; - if (!claim_block(sb_bgl_lock(EXT3_SB(sb), group), grp_goal, bitmap_bh)) { + if (!claim_block(sb_bgl_lock(EXT3_SB(sb), group), + grp_goal, bitmap_bh)) { /* * The block was allocated by another thread, or it was * allocated and then freed by another thread @@ -718,7 +867,8 @@ grp_goal++; while (num < *count && grp_goal < end && ext3_test_allocatable(grp_goal, bitmap_bh) - && claim_block(sb_bgl_lock(EXT3_SB(sb), group), grp_goal, bitmap_bh)) { + && claim_block(sb_bgl_lock(EXT3_SB(sb), group), + grp_goal, bitmap_bh)) { num++; grp_goal++; } @@ -730,12 +880,12 @@ } /** - * find_next_reservable_window(): + * find_next_reservable_window(): * find a reservable space within the given range. * It does not allocate the reservation window for now: * alloc_new_reservation() will do the work later. * - * @search_head: the head of the searching list; + * @search_head: the head of the searching list; * This is not necessarily the list head of the whole filesystem * * We have both head and start_block to assist the search @@ -743,12 +893,12 @@ * but we will shift to the place where start_block is, * then start from there, when looking for a reservable space. * - * @size: the target new reservation window size + * @size: the target new reservation window size * - * @group_first_block: the first block we consider to start + * @group_first_block: the first block we consider to start * the real search from * - * @last_block: + * @last_block: * the maximum block number that our goal reservable space * could start from. This is normally the last block in this * group. The search will end when we found the start of next @@ -756,10 +906,10 @@ * This could handle the cross boundary reservation window * request. * - * basically we search from the given range, rather than the whole - * reservation double linked list, (start_block, last_block) - * to find a free region that is of my size and has not - * been reserved. + * basically we search from the given range, rather than the whole + * reservation double linked list, (start_block, last_block) + * to find a free region that is of my size and has not + * been reserved. * */ static int find_next_reservable_window( @@ -812,7 +962,7 @@ /* * Found a reserveable space big enough. We could * have a reservation across the group boundary here - */ + */ break; } } @@ -848,7 +998,7 @@ } /** - * alloc_new_reservation()--allocate a new reservation window + * alloc_new_reservation()--allocate a new reservation window * * To make a new reservation, we search part of the filesystem * reservation list (the list that inside the group). We try to @@ -897,7 +1047,7 @@ spinlock_t *rsv_lock = &EXT3_SB(sb)->s_rsv_window_lock; group_first_block = ext3_group_first_block_no(sb, group); - group_end_block = group_first_block + EXT3_BLOCKS_PER_GROUP(sb) - 1; + group_end_block = group_first_block + (EXT3_BLOCKS_PER_GROUP(sb) - 1); if (grp_goal < 0) start_block = group_first_block; @@ -929,9 +1079,10 @@ if ((my_rsv->rsv_alloc_hit > (my_rsv->rsv_end - my_rsv->rsv_start + 1) / 2)) { /* - * if we previously allocation hit ration is greater than half - * we double the size of reservation window next time - * otherwise keep the same + * if the previously allocation hit ratio is + * greater than 1/2, then we double the size of + * the reservation window the next time, + * otherwise we keep the same size window */ size = size * 2; if (size > EXT3_MAX_RESERVE_BLOCKS) @@ -1010,6 +1161,23 @@ goto retry; } +/** + * try_to_extend_reservation() + * @my_rsv: given reservation window + * @sb: super block + * @size: the delta to extend + * + * Attempt to expand the reservation window large enough to have + * required number of free blocks + * + * Since ext3_try_to_allocate() will always allocate blocks within + * the reservation window range, if the window size is too small, + * multiple blocks allocation has to stop at the end of the reservation + * window. To make this more efficient, given the total number of + * blocks needed and the current size of the window, we try to + * expand the reservation window size if necessary on a best-effort + * basis before ext3_new_blocks() tries to allocate blocks, + */ static void try_to_extend_reservation(struct ext3_reserve_window_node *my_rsv, struct super_block *sb, int size) { @@ -1035,7 +1203,17 @@ spin_unlock(rsv_lock); } -/* +/** + * ext3_try_to_allocate_with_rsv() + * @sb: superblock + * @handle: handle to this transaction + * @group: given allocation block group + * @bitmap_bh: bufferhead holds the block bitmap + * @grp_goal: given target block within the group + * @count: target number of blocks to allocate + * @my_rsv: reservation window + * @errp: pointer to store the error code + * * This is the main function used to allocate a new block and its reservation * window. * @@ -1051,9 +1229,7 @@ * reservation), and there are lots of free blocks, but they are all * being reserved. * - * We use a sorted double linked list for the per-filesystem reservation list. - * The insert, remove and find a free space(non-reserved) operations for the - * sorted double linked list should be fast. + * We use a red-black tree for the per-filesystem reservation list. * */ static ext3_grpblk_t @@ -1063,7 +1239,7 @@ struct ext3_reserve_window_node * my_rsv, unsigned long *count, int *errp) { - ext3_fsblk_t group_first_block; + ext3_fsblk_t group_first_block, group_last_block; ext3_grpblk_t ret = 0; int fatal; unsigned long num = *count; @@ -1100,6 +1276,7 @@ * first block is the block number of the first block in this group */ group_first_block = ext3_group_first_block_no(sb, group); + group_last_block = group_first_block + (EXT3_BLOCKS_PER_GROUP(sb) - 1); /* * Basically we will allocate a new block from inode's reservation @@ -1118,7 +1295,8 @@ */ while (1) { if (rsv_is_empty(&my_rsv->rsv_window) || (ret < 0) || - !goal_in_my_reservation(&my_rsv->rsv_window, grp_goal, group, sb)) { + !goal_in_my_reservation(&my_rsv->rsv_window, + grp_goal, group, sb)) { if (my_rsv->rsv_goal_size < *count) my_rsv->rsv_goal_size = *count; ret = alloc_new_reservation(my_rsv, grp_goal, sb, @@ -1126,17 +1304,21 @@ if (ret < 0) break; /* failed */ - if (!goal_in_my_reservation(&my_rsv->rsv_window, grp_goal, group, sb)) + if (!goal_in_my_reservation(&my_rsv->rsv_window, + grp_goal, group, sb)) grp_goal = -1; - } else if (grp_goal > 0 && (my_rsv->rsv_end-grp_goal+1) < *count) + } else if (grp_goal > 0 && + (my_rsv->rsv_end-grp_goal+1) < *count) try_to_extend_reservation(my_rsv, sb, *count-my_rsv->rsv_end + grp_goal - 1); - if ((my_rsv->rsv_start >= group_first_block + EXT3_BLOCKS_PER_GROUP(sb)) - || (my_rsv->rsv_end < group_first_block)) + if ((my_rsv->rsv_start > group_last_block) || + (my_rsv->rsv_end < group_first_block)) { + rsv_window_dump(&EXT3_SB(sb)->s_rsv_window_root, 1); BUG(); - ret = ext3_try_to_allocate(sb, handle, group, bitmap_bh, grp_goal, - &num, &my_rsv->rsv_window); + } + ret = ext3_try_to_allocate(sb, handle, group, bitmap_bh, + grp_goal, &num, &my_rsv->rsv_window); if (ret >= 0) { my_rsv->rsv_alloc_hit += num; *count = num; @@ -1161,6 +1343,12 @@ return ret; } +/** + * ext3_has_free_blocks() + * @sbi: in-core super block structure. + * + * Check if filesystem has at least 1 free block available for allocation. + */ static int ext3_has_free_blocks(struct ext3_sb_info *sbi) { ext3_fsblk_t free_blocks, root_blocks; @@ -1175,11 +1363,17 @@ return 1; } -/* +/** + * ext3_should_retry_alloc() + * @sb: super block + * @retries number of attemps has been made + * * ext3_should_retry_alloc() is called when ENOSPC is returned, and if * it is profitable to retry the operation, this function will wait * for the current or commiting transaction to complete, and then * return TRUE. + * + * if the total number of retries exceed three times, return FALSE. */ int ext3_should_retry_alloc(struct super_block *sb, int *retries) { @@ -1191,13 +1385,19 @@ return journal_force_commit_nested(EXT3_SB(sb)->s_journal); } -/* - * ext3_new_block uses a goal block to assist allocation. If the goal is - * free, or there is a free block within 32 blocks of the goal, that block - * is allocated. Otherwise a forward search is made for a free block; within - * each block group the search first looks for an entire free byte in the block - * bitmap, and then for any free bit if that fails. - * This function also updates quota and i_blocks field. +/** + * ext3_new_blocks() -- core block(s) allocation function + * @handle: handle to this transaction + * @inode: file inode + * @goal: given target block(filesystem wide) + * @count: target number of blocks to allocate + * @errp: error code + * + * ext3_new_blocks uses a goal block to assist allocation. It tries to + * allocate block(s) from the block group contains the goal block first. If that + * fails, it will try to allocate block(s) from other block groups without + * any specific goal block. + * */ ext3_fsblk_t ext3_new_blocks(handle_t *handle, struct inode *inode, ext3_fsblk_t goal, unsigned long *count, int *errp) @@ -1303,7 +1503,7 @@ smp_rmb(); /* - * Now search the rest of the groups. We assume that + * Now search the rest of the groups. We assume that * i and gdp correctly point to the last group visited. */ for (bgi = 0; bgi < ngroups; bgi++) { @@ -1428,7 +1628,7 @@ spin_lock(sb_bgl_lock(sbi, group_no)); gdp->bg_free_blocks_count = - cpu_to_le16(le16_to_cpu(gdp->bg_free_blocks_count) - num); + cpu_to_le16(le16_to_cpu(gdp->bg_free_blocks_count)-num); spin_unlock(sb_bgl_lock(sbi, group_no)); percpu_counter_mod(&sbi->s_freeblocks_counter, -num); @@ -1471,6 +1671,12 @@ return ext3_new_blocks(handle, inode, goal, &count, errp); } +/** + * ext3_count_free_blocks() -- count filesystem free blocks + * @sb: superblock + * + * Adds up the number of free blocks from each block group. + */ ext3_fsblk_t ext3_count_free_blocks(struct super_block *sb) { ext3_fsblk_t desc_count;
diff --git a/fs/ext3/bitmap.c b/fs/ext3/bitmap.c index ce4f82b..b9176ee 100644 --- a/fs/ext3/bitmap.c +++ b/fs/ext3/bitmap.c
@@ -20,7 +20,7 @@ unsigned int i; unsigned long sum = 0; - if (!map) + if (!map) return (0); for (i = 0; i < numchars; i++) sum += nibblemap[map->b_data[i] & 0xf] +
diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c index fbb0d4e..429acbb 100644 --- a/fs/ext3/dir.c +++ b/fs/ext3/dir.c
@@ -59,7 +59,7 @@ return (ext3_filetype_table[filetype]); } - + int ext3_check_dir_entry (const char * function, struct inode * dir, struct ext3_dir_entry_2 * de, @@ -67,7 +67,7 @@ unsigned long offset) { const char * error_msg = NULL; - const int rlen = le16_to_cpu(de->rec_len); + const int rlen = le16_to_cpu(de->rec_len); if (rlen < EXT3_DIR_REC_LEN(1)) error_msg = "rec_len is smaller than minimal"; @@ -162,7 +162,7 @@ * to make sure. */ if (filp->f_version != inode->i_version) { for (i = 0; i < sb->s_blocksize && i < offset; ) { - de = (struct ext3_dir_entry_2 *) + de = (struct ext3_dir_entry_2 *) (bh->b_data + i); /* It's too expensive to do a full * dirent test each time round this @@ -181,7 +181,7 @@ filp->f_version = inode->i_version; } - while (!error && filp->f_pos < inode->i_size + while (!error && filp->f_pos < inode->i_size && offset < sb->s_blocksize) { de = (struct ext3_dir_entry_2 *) (bh->b_data + offset); if (!ext3_check_dir_entry ("ext3_readdir", inode, de, @@ -229,7 +229,7 @@ /* * These functions convert from the major/minor hash to an f_pos * value. - * + * * Currently we only use major hash numer. This is unfortunate, but * on 32-bit machines, the same VFS interface is used for lseek and * llseek, so if we use the 64 bit offset, then the 32-bit versions of @@ -250,7 +250,7 @@ struct fname { __u32 hash; __u32 minor_hash; - struct rb_node rb_hash; + struct rb_node rb_hash; struct fname *next; __u32 inode; __u8 name_len; @@ -343,10 +343,9 @@ /* Create and allocate the fname structure */ len = sizeof(struct fname) + dirent->name_len + 1; - new_fn = kmalloc(len, GFP_KERNEL); + new_fn = kzalloc(len, GFP_KERNEL); if (!new_fn) return -ENOMEM; - memset(new_fn, 0, len); new_fn->hash = hash; new_fn->minor_hash = minor_hash; new_fn->inode = le32_to_cpu(dirent->inode); @@ -410,7 +409,7 @@ curr_pos = hash2pos(fname->hash, fname->minor_hash); while (fname) { error = filldir(dirent, fname->name, - fname->name_len, curr_pos, + fname->name_len, curr_pos, fname->inode, get_dtype(sb, fname->file_type)); if (error) { @@ -465,7 +464,7 @@ /* * Fill the rbtree if we have no more entries, * or the inode has changed since we last read in the - * cached entries. + * cached entries. */ if ((!info->curr_node) || (filp->f_version != inode->i_version)) {
diff --git a/fs/ext3/file.c b/fs/ext3/file.c index 1efefb6..994efd1 100644 --- a/fs/ext3/file.c +++ b/fs/ext3/file.c
@@ -100,7 +100,7 @@ force_commit: err = ext3_force_commit(inode->i_sb); - if (err) + if (err) return err; return ret; }
diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c index 49382a2..dd1fd3c 100644 --- a/fs/ext3/fsync.c +++ b/fs/ext3/fsync.c
@@ -8,14 +8,14 @@ * Universite Pierre et Marie Curie (Paris VI) * from * linux/fs/minix/truncate.c Copyright (C) 1991, 1992 Linus Torvalds - * + * * ext3fs fsync primitive * * Big-endian to little-endian byte-swapping/bitmaps by * David S. Miller (davem@caip.rutgers.edu), 1995 - * + * * Removed unnecessary code duplication for little endian machines - * and excessive __inline__s. + * and excessive __inline__s. * Andi Kleen, 1997 * * Major simplications and cleanup - we only need to do the metadata, because
diff --git a/fs/ext3/hash.c b/fs/ext3/hash.c index 5a2d123..deeb27b 100644 --- a/fs/ext3/hash.c +++ b/fs/ext3/hash.c
@@ -4,7 +4,7 @@ * Copyright (C) 2002 by Theodore Ts'o * * This file is released under the GPL v2. - * + * * This file may be redistributed under the terms of the GNU Public * License. */ @@ -80,11 +80,11 @@ * Returns the hash of a filename. If len is 0 and name is NULL, then * this function can be used to test whether or not a hash version is * supported. - * + * * The seed is an 4 longword (32 bits) "secret" which can be used to * uniquify a hash. If the seed is all zero's, then some default seed * may be used. - * + * * A particular hash version specifies whether or not the seed is * represented, and whether or not the returned hash is 32 bits or 64 * bits. 32 bit hashes will return 0 for the minor hash. @@ -95,7 +95,7 @@ __u32 minor_hash = 0; const char *p; int i; - __u32 in[8], buf[4]; + __u32 in[8], buf[4]; /* Initialize the default seed for the hash checksum functions */ buf[0] = 0x67452301;
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c index 36546ed..e45dbd6 100644 --- a/fs/ext3/ialloc.c +++ b/fs/ext3/ialloc.c
@@ -202,7 +202,7 @@ static int find_group_dir(struct super_block *sb, struct inode *parent) { int ngroups = EXT3_SB(sb)->s_groups_count; - int freei, avefreei; + unsigned int freei, avefreei; struct ext3_group_desc *desc, *best_desc = NULL; struct buffer_head *bh; int group, best_group = -1; @@ -216,7 +216,7 @@ continue; if (le16_to_cpu(desc->bg_free_inodes_count) < avefreei) continue; - if (!best_desc || + if (!best_desc || (le16_to_cpu(desc->bg_free_blocks_count) > le16_to_cpu(best_desc->bg_free_blocks_count))) { best_group = group; @@ -226,30 +226,30 @@ return best_group; } -/* - * Orlov's allocator for directories. - * +/* + * Orlov's allocator for directories. + * * We always try to spread first-level directories. * - * If there are blockgroups with both free inodes and free blocks counts - * not worse than average we return one with smallest directory count. - * Otherwise we simply return a random group. - * - * For the rest rules look so: - * - * It's OK to put directory into a group unless - * it has too many directories already (max_dirs) or - * it has too few free inodes left (min_inodes) or - * it has too few free blocks left (min_blocks) or - * it's already running too large debt (max_debt). - * Parent's group is prefered, if it doesn't satisfy these - * conditions we search cyclically through the rest. If none - * of the groups look good we just look for a group with more - * free inodes than average (starting at parent's group). - * - * Debt is incremented each time we allocate a directory and decremented - * when we allocate an inode, within 0--255. - */ + * If there are blockgroups with both free inodes and free blocks counts + * not worse than average we return one with smallest directory count. + * Otherwise we simply return a random group. + * + * For the rest rules look so: + * + * It's OK to put directory into a group unless + * it has too many directories already (max_dirs) or + * it has too few free inodes left (min_inodes) or + * it has too few free blocks left (min_blocks) or + * it's already running too large debt (max_debt). + * Parent's group is prefered, if it doesn't satisfy these + * conditions we search cyclically through the rest. If none + * of the groups look good we just look for a group with more + * free inodes than average (starting at parent's group). + * + * Debt is incremented each time we allocate a directory and decremented + * when we allocate an inode, within 0--255. + */ #define INODE_COST 64 #define BLOCK_COST 256 @@ -261,10 +261,10 @@ struct ext3_super_block *es = sbi->s_es; int ngroups = sbi->s_groups_count; int inodes_per_group = EXT3_INODES_PER_GROUP(sb); - int freei, avefreei; + unsigned int freei, avefreei; ext3_fsblk_t freeb, avefreeb; ext3_fsblk_t blocks_per_dir; - int ndirs; + unsigned int ndirs; int max_debt, max_dirs, min_inodes; ext3_grpblk_t min_blocks; int group = -1, i; @@ -454,7 +454,7 @@ group = find_group_dir(sb, dir); else group = find_group_orlov(sb, dir); - } else + } else group = find_group_other(sb, dir); err = -ENOSPC; @@ -559,7 +559,6 @@ inode->i_ino = ino; /* This is the optimal IO size (for stat), not the fs block size */ - inode->i_blksize = PAGE_SIZE; inode->i_blocks = 0; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index 84be02e..dcf4f1d 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c
@@ -13,11 +13,11 @@ * Copyright (C) 1991, 1992 Linus Torvalds * * Goal-directed block allocation by Stephen Tweedie - * (sct@redhat.com), 1993, 1998 + * (sct@redhat.com), 1993, 1998 * Big-endian to little-endian byte-swapping/bitmaps by * David S. Miller (davem@caip.rutgers.edu), 1995 * 64-bit file support on 64-bit platforms by Jakub Jelinek - * (jj@sunsite.ms.mff.cuni.cz) + * (jj@sunsite.ms.mff.cuni.cz) * * Assorted race fixes, rewrite of ext3_get_block() by Al Viro, 2000 */ @@ -55,7 +55,7 @@ /* * The ext3 forget function must perform a revoke if we are freeing data * which has been journaled. Metadata (eg. indirect blocks) must be - * revoked in all cases. + * revoked in all cases. * * "bh" may be NULL: a metadata block may have been freed from memory * but there may still be a record of it in the journal, and that record @@ -105,7 +105,7 @@ * Work out how many blocks we need to proceed with the next chunk of a * truncate transaction. */ -static unsigned long blocks_for_truncate(struct inode *inode) +static unsigned long blocks_for_truncate(struct inode *inode) { unsigned long needed; @@ -122,13 +122,13 @@ /* But we need to bound the transaction so we don't overflow the * journal. */ - if (needed > EXT3_MAX_TRANS_DATA) + if (needed > EXT3_MAX_TRANS_DATA) needed = EXT3_MAX_TRANS_DATA; return EXT3_DATA_TRANS_BLOCKS(inode->i_sb) + needed; } -/* +/* * Truncate transactions can be complex and absolutely huge. So we need to * be able to restart the transaction at a conventient checkpoint to make * sure we don't overflow the journal. @@ -136,9 +136,9 @@ * start_transaction gets us a new handle for a truncate transaction, * and extend_transaction tries to extend the existing one a bit. If * extend fails, we need to propagate the failure up and restart the - * transaction in the top-level truncate loop. --sct + * transaction in the top-level truncate loop. --sct */ -static handle_t *start_transaction(struct inode *inode) +static handle_t *start_transaction(struct inode *inode) { handle_t *result; @@ -215,12 +215,12 @@ ext3_orphan_del(handle, inode); EXT3_I(inode)->i_dtime = get_seconds(); - /* + /* * One subtle ordering requirement: if anything has gone wrong * (transaction abort, IO errors, whatever), then we can still * do these next steps (the fs will already have been marked as * having errors), but we can't free the inode if the mark_dirty - * fails. + * fails. */ if (ext3_mark_inode_dirty(handle, inode)) /* If that failed, just do the required in-core inode clear. */ @@ -398,7 +398,7 @@ * + if there is a block to the left of our position - allocate near it. * + if pointer will live in indirect block - allocate near that block. * + if pointer will live in inode - allocate in the same - * cylinder group. + * cylinder group. * * In the latter case we colour the starting block by the callers PID to * prevent it from clashing with concurrent allocations for a different inode @@ -470,7 +470,7 @@ * ext3_blks_to_allocate: Look up the block map and count the number * of direct blocks need to be allocated for the given branch. * - * @branch: chain of indirect blocks + * @branch: chain of indirect blocks * @k: number of blocks need for indirect blocks * @blks: number of data blocks to be mapped. * @blocks_to_boundary: the offset in the indirect block @@ -744,7 +744,7 @@ jbd_debug(5, "splicing indirect only\n"); BUFFER_TRACE(where->bh, "call ext3_journal_dirty_metadata"); err = ext3_journal_dirty_metadata(handle, where->bh); - if (err) + if (err) goto err_out; } else { /* @@ -1098,7 +1098,7 @@ for ( bh = head, block_start = 0; ret == 0 && (bh != head || !block_start); - block_start = block_end, bh = next) + block_start = block_end, bh = next) { next = bh->b_this_page; block_end = block_start + blocksize; @@ -1137,7 +1137,7 @@ * So what we do is to rely on the fact that journal_stop/journal_start * will _not_ run commit under these circumstances because handle->h_ref * is elevated. We'll still have enough credits for the tiny quotafile - * write. + * write. */ static int do_journal_get_write_access(handle_t *handle, struct buffer_head *bh) @@ -1282,7 +1282,7 @@ if (inode->i_size > EXT3_I(inode)->i_disksize) { EXT3_I(inode)->i_disksize = inode->i_size; ret2 = ext3_mark_inode_dirty(handle, inode); - if (!ret) + if (!ret) ret = ret2; } ret2 = ext3_journal_stop(handle); @@ -1291,7 +1291,7 @@ return ret; } -/* +/* * bmap() is special. It gets used by applications such as lilo and by * the swapper to find the on-disk block of a specific piece of data. * @@ -1300,10 +1300,10 @@ * filesystem and enables swap, then they may get a nasty shock when the * data getting swapped to that swapfile suddenly gets overwritten by * the original zero's written out previously to the journal and - * awaiting writeback in the kernel's buffer cache. + * awaiting writeback in the kernel's buffer cache. * * So, if we see any bmap calls here on a modified, data-journaled file, - * take extra steps to flush any blocks which might be in the cache. + * take extra steps to flush any blocks which might be in the cache. */ static sector_t ext3_bmap(struct address_space *mapping, sector_t block) { @@ -1312,16 +1312,16 @@ int err; if (EXT3_I(inode)->i_state & EXT3_STATE_JDATA) { - /* + /* * This is a REALLY heavyweight approach, but the use of * bmap on dirty files is expected to be extremely rare: * only if we run lilo or swapon on a freshly made file - * do we expect this to happen. + * do we expect this to happen. * * (bmap requires CAP_SYS_RAWIO so this does not * represent an unprivileged user DOS attack --- we'd be * in trouble if mortal users could trigger this path at - * will.) + * will.) * * NB. EXT3_STATE_JDATA is not set on files other than * regular files. If somebody wants to bmap a directory @@ -1457,7 +1457,7 @@ */ /* - * And attach them to the current transaction. But only if + * And attach them to the current transaction. But only if * block_write_full_page() succeeded. Otherwise they are unmapped, * and generally junk. */ @@ -1644,7 +1644,7 @@ } } - ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, + ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, offset, nr_segs, ext3_get_block, NULL); @@ -2025,7 +2025,7 @@ __le32 *first, __le32 *last) { ext3_fsblk_t block_to_free = 0; /* Starting block # of a run */ - unsigned long count = 0; /* Number of blocks in the run */ + unsigned long count = 0; /* Number of blocks in the run */ __le32 *block_to_free_p = NULL; /* Pointer into inode/ind corresponding to block_to_free */ @@ -2054,7 +2054,7 @@ } else if (nr == block_to_free + count) { count++; } else { - ext3_clear_blocks(handle, inode, this_bh, + ext3_clear_blocks(handle, inode, this_bh, block_to_free, count, block_to_free_p, p); block_to_free = nr; @@ -2115,7 +2115,7 @@ */ if (!bh) { ext3_error(inode->i_sb, "ext3_free_branches", - "Read failure, inode=%ld, block="E3FSBLK, + "Read failure, inode=%lu, block="E3FSBLK, inode->i_ino, nr); continue; } @@ -2184,7 +2184,7 @@ *p = 0; BUFFER_TRACE(parent_bh, "call ext3_journal_dirty_metadata"); - ext3_journal_dirty_metadata(handle, + ext3_journal_dirty_metadata(handle, parent_bh); } } @@ -2632,9 +2632,6 @@ * recovery code: that's fine, we're about to complete * the process of deleting those. */ } - inode->i_blksize = PAGE_SIZE; /* This is the optimal IO size - * (for stat), not the fs block - * size */ inode->i_blocks = le32_to_cpu(raw_inode->i_blocks); ei->i_flags = le32_to_cpu(raw_inode->i_flags); #ifdef EXT3_FRAGMENTS @@ -2704,7 +2701,7 @@ if (raw_inode->i_block[0]) init_special_inode(inode, inode->i_mode, old_decode_dev(le32_to_cpu(raw_inode->i_block[0]))); - else + else init_special_inode(inode, inode->i_mode, new_decode_dev(le32_to_cpu(raw_inode->i_block[1]))); } @@ -2724,8 +2721,8 @@ * * The caller must have write access to iloc->bh. */ -static int ext3_do_update_inode(handle_t *handle, - struct inode *inode, +static int ext3_do_update_inode(handle_t *handle, + struct inode *inode, struct ext3_iloc *iloc) { struct ext3_inode *raw_inode = ext3_raw_inode(iloc); @@ -2900,7 +2897,7 @@ * commit will leave the blocks being flushed in an unused state on * disk. (On recovery, the inode will get truncated and the blocks will * be freed, so we have a strong guarantee that no future commit will - * leave these blocks visible to the user.) + * leave these blocks visible to the user.) * * Called with inode->sem down. */ @@ -3043,13 +3040,13 @@ return err; } -/* +/* * On success, We end up with an outstanding reference count against - * iloc->bh. This _must_ be cleaned up later. + * iloc->bh. This _must_ be cleaned up later. */ int -ext3_reserve_inode_write(handle_t *handle, struct inode *inode, +ext3_reserve_inode_write(handle_t *handle, struct inode *inode, struct ext3_iloc *iloc) { int err = 0; @@ -3139,7 +3136,7 @@ } #if 0 -/* +/* * Bind an inode's backing buffer_head into this transaction, to prevent * it from being flushed to disk early. Unlike * ext3_reserve_inode_write, this leaves behind no bh reference and @@ -3157,7 +3154,7 @@ BUFFER_TRACE(iloc.bh, "get_write_access"); err = journal_get_write_access(handle, iloc.bh); if (!err) - err = ext3_journal_dirty_metadata(handle, + err = ext3_journal_dirty_metadata(handle, iloc.bh); brelse(iloc.bh); }
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c index 2aa7101..85d132c 100644 --- a/fs/ext3/namei.c +++ b/fs/ext3/namei.c
@@ -15,13 +15,13 @@ * Big-endian to little-endian byte-swapping/bitmaps by * David S. Miller (davem@caip.rutgers.edu), 1995 * Directory entry file type support and forward compatibility hooks - * for B-tree directories by Theodore Ts'o (tytso@mit.edu), 1998 + * for B-tree directories by Theodore Ts'o (tytso@mit.edu), 1998 * Hash Tree Directory indexing (c) - * Daniel Phillips, 2001 + * Daniel Phillips, 2001 * Hash Tree Directory indexing porting - * Christopher Li, 2002 + * Christopher Li, 2002 * Hash Tree Directory indexing cleanup - * Theodore Ts'o, 2002 + * Theodore Ts'o, 2002 */ #include <linux/fs.h> @@ -76,7 +76,7 @@ #ifdef DX_DEBUG #define dxtrace(command) command #else -#define dxtrace(command) +#define dxtrace(command) #endif struct fake_dirent @@ -169,7 +169,7 @@ static void dx_insert_block (struct dx_frame *frame, u32 hash, u32 block); static int ext3_htree_next_block(struct inode *dir, __u32 hash, struct dx_frame *frame, - struct dx_frame *frames, + struct dx_frame *frames, __u32 *start_hash); static struct buffer_head * ext3_dx_find_entry(struct dentry *dentry, struct ext3_dir_entry_2 **res_dir, int *err); @@ -250,7 +250,7 @@ } struct stats -{ +{ unsigned names; unsigned space; unsigned bcount; @@ -278,7 +278,7 @@ ((char *) de - base)); } space += EXT3_DIR_REC_LEN(de->name_len); - names++; + names++; } de = (struct ext3_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len)); } @@ -464,7 +464,7 @@ */ static int ext3_htree_next_block(struct inode *dir, __u32 hash, struct dx_frame *frame, - struct dx_frame *frames, + struct dx_frame *frames, __u32 *start_hash) { struct dx_frame *p; @@ -632,7 +632,7 @@ } count += ret; hashval = ~0; - ret = ext3_htree_next_block(dir, HASH_NB_ALWAYS, + ret = ext3_htree_next_block(dir, HASH_NB_ALWAYS, frame, frames, &hashval); *next_hash = hashval; if (ret < 0) { @@ -649,7 +649,7 @@ break; } dx_release(frames); - dxtrace(printk("Fill tree: returned %d entries, next hash: %x\n", + dxtrace(printk("Fill tree: returned %d entries, next hash: %x\n", count, *next_hash)); return count; errout: @@ -1050,7 +1050,7 @@ parent = ERR_PTR(-ENOMEM); } return parent; -} +} #define S_SHIFT 12 static unsigned char ext3_type_by_mode[S_IFMT >> S_SHIFT] = { @@ -1198,7 +1198,7 @@ * add_dirent_to_buf will attempt search the directory block for * space. It will return -ENOSPC if no space is available, and -EIO * and -EEXIST if directory entry already exists. - * + * * NOTE! bh is NOT released in the case where ENOSPC is returned. In * all other cases bh is released. */ @@ -1572,7 +1572,7 @@ * ext3_delete_entry deletes a directory entry by merging it with the * previous entry */ -static int ext3_delete_entry (handle_t *handle, +static int ext3_delete_entry (handle_t *handle, struct inode * dir, struct ext3_dir_entry_2 * de_del, struct buffer_head * bh) @@ -1643,12 +1643,12 @@ * is so far negative - it has no inode. * * If the create succeeds, we fill in the inode information - * with d_instantiate(). + * with d_instantiate(). */ static int ext3_create (struct inode * dir, struct dentry * dentry, int mode, struct nameidata *nd) { - handle_t *handle; + handle_t *handle; struct inode * inode; int err, retries = 0; @@ -1688,7 +1688,7 @@ retry: handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) + - EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 + + EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 + 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb)); if (IS_ERR(handle)) return PTR_ERR(handle); @@ -1813,10 +1813,10 @@ de1 = (struct ext3_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len)); if (le32_to_cpu(de->inode) != inode->i_ino || - !le32_to_cpu(de1->inode) || + !le32_to_cpu(de1->inode) || strcmp (".", de->name) || strcmp ("..", de1->name)) { - ext3_warning (inode->i_sb, "empty_dir", + ext3_warning (inode->i_sb, "empty_dir", "bad directory (dir #%lu) - no `.' or `..'", inode->i_ino); brelse (bh); @@ -1883,7 +1883,7 @@ * being truncated, or files being unlinked. */ /* @@@ FIXME: Observation from aviro: - * I think I can trigger J_ASSERT in ext3_orphan_add(). We block + * I think I can trigger J_ASSERT in ext3_orphan_add(). We block * here (on lock_super()), so race with ext3_link() which might bump * ->i_nlink. For, say it, character device. Not a regular file, * not a directory, not a symlink and ->i_nlink > 0. @@ -1919,8 +1919,8 @@ if (!err) list_add(&EXT3_I(inode)->i_orphan, &EXT3_SB(sb)->s_orphan); - jbd_debug(4, "superblock will point to %ld\n", inode->i_ino); - jbd_debug(4, "orphan inode %ld will point to %d\n", + jbd_debug(4, "superblock will point to %lu\n", inode->i_ino); + jbd_debug(4, "orphan inode %lu will point to %d\n", inode->i_ino, NEXT_ORPHAN(inode)); out_unlock: unlock_super(sb); @@ -2129,7 +2129,7 @@ retry: handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) + - EXT3_INDEX_EXTRA_TRANS_BLOCKS + 5 + + EXT3_INDEX_EXTRA_TRANS_BLOCKS + 5 + 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb)); if (IS_ERR(handle)) return PTR_ERR(handle); @@ -2227,7 +2227,7 @@ DQUOT_INIT(new_dentry->d_inode); handle = ext3_journal_start(old_dir, 2 * EXT3_DATA_TRANS_BLOCKS(old_dir->i_sb) + - EXT3_INDEX_EXTRA_TRANS_BLOCKS + 2); + EXT3_INDEX_EXTRA_TRANS_BLOCKS + 2); if (IS_ERR(handle)) return PTR_ERR(handle); @@ -2393,4 +2393,4 @@ .removexattr = generic_removexattr, #endif .permission = ext3_permission, -}; +};
diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c index 5e1337f..b73cba1 100644 --- a/fs/ext3/resize.c +++ b/fs/ext3/resize.c
@@ -336,7 +336,7 @@ unsigned five = 5; unsigned seven = 7; unsigned grp; - __u32 *p = (__u32 *)primary->b_data; + __le32 *p = (__le32 *)primary->b_data; int gdbackups = 0; while ((grp = ext3_list_backups(sb, &three, &five, &seven)) < end) { @@ -380,7 +380,7 @@ struct buffer_head *dind; int gdbackups; struct ext3_iloc iloc; - __u32 *data; + __le32 *data; int err; if (test_opt(sb, DEBUG)) @@ -417,7 +417,7 @@ goto exit_bh; } - data = (__u32 *)dind->b_data; + data = (__le32 *)dind->b_data; if (le32_to_cpu(data[gdb_num % EXT3_ADDR_PER_BLOCK(sb)]) != gdblock) { ext3_warning(sb, __FUNCTION__, "new group %u GDT block "E3FSBLK" not reserved", @@ -439,8 +439,8 @@ if ((err = ext3_reserve_inode_write(handle, inode, &iloc))) goto exit_dindj; - n_group_desc = (struct buffer_head **)kmalloc((gdb_num + 1) * - sizeof(struct buffer_head *), GFP_KERNEL); + n_group_desc = kmalloc((gdb_num + 1) * sizeof(struct buffer_head *), + GFP_KERNEL); if (!n_group_desc) { err = -ENOMEM; ext3_warning (sb, __FUNCTION__, @@ -519,7 +519,7 @@ struct buffer_head *dind; struct ext3_iloc iloc; ext3_fsblk_t blk; - __u32 *data, *end; + __le32 *data, *end; int gdbackups = 0; int res, i; int err; @@ -536,8 +536,8 @@ } blk = EXT3_SB(sb)->s_sbh->b_blocknr + 1 + EXT3_SB(sb)->s_gdb_count; - data = (__u32 *)dind->b_data + EXT3_SB(sb)->s_gdb_count; - end = (__u32 *)dind->b_data + EXT3_ADDR_PER_BLOCK(sb); + data = (__le32 *)dind->b_data + EXT3_SB(sb)->s_gdb_count; + end = (__le32 *)dind->b_data + EXT3_ADDR_PER_BLOCK(sb); /* Get each reserved primary GDT block and verify it holds backups */ for (res = 0; res < reserved_gdb; res++, blk++) { @@ -545,7 +545,8 @@ ext3_warning(sb, __FUNCTION__, "reserved block "E3FSBLK " not at offset %ld", - blk, (long)(data - (__u32 *)dind->b_data)); + blk, + (long)(data - (__le32 *)dind->b_data)); err = -EINVAL; goto exit_bh; } @@ -560,7 +561,7 @@ goto exit_bh; } if (++data >= end) - data = (__u32 *)dind->b_data; + data = (__le32 *)dind->b_data; } for (i = 0; i < reserved_gdb; i++) { @@ -584,7 +585,7 @@ blk = input->group * EXT3_BLOCKS_PER_GROUP(sb); for (i = 0; i < reserved_gdb; i++) { int err2; - data = (__u32 *)primary[i]->b_data; + data = (__le32 *)primary[i]->b_data; /* printk("reserving backup %lu[%u] = %lu\n", primary[i]->b_blocknr, gdbackups, blk + primary[i]->b_blocknr); */ @@ -689,7 +690,7 @@ "can't update backup for group %d (err %d), " "forcing fsck on next reboot", group, err); sbi->s_mount_state &= ~EXT3_VALID_FS; - sbi->s_es->s_state &= ~cpu_to_le16(EXT3_VALID_FS); + sbi->s_es->s_state &= cpu_to_le16(~EXT3_VALID_FS); mark_buffer_dirty(sbi->s_sbh); } } @@ -730,6 +731,18 @@ return -EPERM; } + if (le32_to_cpu(es->s_blocks_count) + input->blocks_count < + le32_to_cpu(es->s_blocks_count)) { + ext3_warning(sb, __FUNCTION__, "blocks_count overflow\n"); + return -EINVAL; + } + + if (le32_to_cpu(es->s_inodes_count) + EXT3_INODES_PER_GROUP(sb) < + le32_to_cpu(es->s_inodes_count)) { + ext3_warning(sb, __FUNCTION__, "inodes_count overflow\n"); + return -EINVAL; + } + if (reserved_gdb || gdb_off == 0) { if (!EXT3_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_RESIZE_INODE)){ @@ -958,6 +971,11 @@ add = EXT3_BLOCKS_PER_GROUP(sb) - last; + if (o_blocks_count + add < o_blocks_count) { + ext3_warning(sb, __FUNCTION__, "blocks_count overflow"); + return -EINVAL; + } + if (o_blocks_count + add > n_blocks_count) add = n_blocks_count - o_blocks_count;
diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 3559086..8bfd56e 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c
@@ -45,7 +45,7 @@ static int ext3_load_journal(struct super_block *, struct ext3_super_block *, unsigned long journal_devnum); static int ext3_create_journal(struct super_block *, struct ext3_super_block *, - int); + unsigned int); static void ext3_commit_super (struct super_block * sb, struct ext3_super_block * es, int sync); @@ -62,13 +62,13 @@ static void ext3_write_super (struct super_block * sb); static void ext3_write_super_lockfs(struct super_block *sb); -/* +/* * Wrappers for journal_start/end. * * The only special thing we need to do here is to make sure that all * journal_end calls result in the superblock being marked dirty, so * that sync() will call the filesystem's write_super callback if - * appropriate. + * appropriate. */ handle_t *ext3_journal_start_sb(struct super_block *sb, int nblocks) { @@ -90,11 +90,11 @@ return journal_start(journal, nblocks); } -/* +/* * The only special thing we need to do here is to make sure that all * journal_stop calls result in the superblock being marked dirty, so * that sync() will call the filesystem's write_super callback if - * appropriate. + * appropriate. */ int __ext3_journal_stop(const char *where, handle_t *handle) { @@ -159,20 +159,21 @@ if (sb->s_flags & MS_RDONLY) return; - if (test_opt (sb, ERRORS_RO)) { - printk (KERN_CRIT "Remounting filesystem read-only\n"); - sb->s_flags |= MS_RDONLY; - } else { + if (!test_opt (sb, ERRORS_CONT)) { journal_t *journal = EXT3_SB(sb)->s_journal; EXT3_SB(sb)->s_mount_opt |= EXT3_MOUNT_ABORT; if (journal) journal_abort(journal, -EIO); } + if (test_opt (sb, ERRORS_RO)) { + printk (KERN_CRIT "Remounting filesystem read-only\n"); + sb->s_flags |= MS_RDONLY; + } + ext3_commit_super(sb, es, 1); if (test_opt(sb, ERRORS_PANIC)) panic("EXT3-fs (device %s): panic forced after error\n", sb->s_id); - ext3_commit_super(sb, es, 1); } void ext3_error (struct super_block * sb, const char * function, @@ -369,16 +370,16 @@ { struct list_head *l; - printk(KERN_ERR "sb orphan head is %d\n", + printk(KERN_ERR "sb orphan head is %d\n", le32_to_cpu(sbi->s_es->s_last_orphan)); printk(KERN_ERR "sb_info orphan list:\n"); list_for_each(l, &sbi->s_orphan) { struct inode *inode = orphan_list_entry(l); printk(KERN_ERR " " - "inode %s:%ld at %p: mode %o, nlink %d, next %d\n", + "inode %s:%lu at %p: mode %o, nlink %d, next %d\n", inode->i_sb->s_id, inode->i_ino, inode, - inode->i_mode, inode->i_nlink, + inode->i_mode, inode->i_nlink, NEXT_ORPHAN(inode)); } } @@ -475,7 +476,7 @@ inode_init_once(&ei->vfs_inode); } } - + static int init_inodecache(void) { ext3_inode_cachep = kmem_cache_create("ext3_inode_cache", @@ -490,8 +491,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(ext3_inode_cachep)) - printk(KERN_INFO "ext3_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(ext3_inode_cachep); } static void ext3_clear_inode(struct inode *inode) @@ -733,8 +733,8 @@ static ext3_fsblk_t get_sb_block(void **data) { - ext3_fsblk_t sb_block; - char *options = (char *) *data; + ext3_fsblk_t sb_block; + char *options = (char *) *data; if (!options || strncmp(options, "sb=", 3) != 0) return 1; /* Default location */ @@ -753,7 +753,7 @@ } static int parse_options (char *options, struct super_block *sb, - unsigned long *inum, unsigned long *journal_devnum, + unsigned int *inum, unsigned long *journal_devnum, ext3_fsblk_t *n_blocks_count, int is_remount) { struct ext3_sb_info *sbi = EXT3_SB(sb); @@ -1174,7 +1174,8 @@ static int ext3_check_descriptors (struct super_block * sb) { struct ext3_sb_info *sbi = EXT3_SB(sb); - ext3_fsblk_t block = le32_to_cpu(sbi->s_es->s_first_data_block); + ext3_fsblk_t first_block = le32_to_cpu(sbi->s_es->s_first_data_block); + ext3_fsblk_t last_block; struct ext3_group_desc * gdp = NULL; int desc_block = 0; int i; @@ -1183,12 +1184,17 @@ for (i = 0; i < sbi->s_groups_count; i++) { + if (i == sbi->s_groups_count - 1) + last_block = le32_to_cpu(sbi->s_es->s_blocks_count) - 1; + else + last_block = first_block + + (EXT3_BLOCKS_PER_GROUP(sb) - 1); + if ((i % EXT3_DESC_PER_BLOCK(sb)) == 0) gdp = (struct ext3_group_desc *) sbi->s_group_desc[desc_block++]->b_data; - if (le32_to_cpu(gdp->bg_block_bitmap) < block || - le32_to_cpu(gdp->bg_block_bitmap) >= - block + EXT3_BLOCKS_PER_GROUP(sb)) + if (le32_to_cpu(gdp->bg_block_bitmap) < first_block || + le32_to_cpu(gdp->bg_block_bitmap) > last_block) { ext3_error (sb, "ext3_check_descriptors", "Block bitmap for group %d" @@ -1197,9 +1203,8 @@ le32_to_cpu(gdp->bg_block_bitmap)); return 0; } - if (le32_to_cpu(gdp->bg_inode_bitmap) < block || - le32_to_cpu(gdp->bg_inode_bitmap) >= - block + EXT3_BLOCKS_PER_GROUP(sb)) + if (le32_to_cpu(gdp->bg_inode_bitmap) < first_block || + le32_to_cpu(gdp->bg_inode_bitmap) > last_block) { ext3_error (sb, "ext3_check_descriptors", "Inode bitmap for group %d" @@ -1208,9 +1213,9 @@ le32_to_cpu(gdp->bg_inode_bitmap)); return 0; } - if (le32_to_cpu(gdp->bg_inode_table) < block || - le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group >= - block + EXT3_BLOCKS_PER_GROUP(sb)) + if (le32_to_cpu(gdp->bg_inode_table) < first_block || + le32_to_cpu(gdp->bg_inode_table) + sbi->s_itb_per_group > + last_block) { ext3_error (sb, "ext3_check_descriptors", "Inode table for group %d" @@ -1219,7 +1224,7 @@ le32_to_cpu(gdp->bg_inode_table)); return 0; } - block += EXT3_BLOCKS_PER_GROUP(sb); + first_block += EXT3_BLOCKS_PER_GROUP(sb); gdp++; } @@ -1301,17 +1306,17 @@ DQUOT_INIT(inode); if (inode->i_nlink) { printk(KERN_DEBUG - "%s: truncating inode %ld to %Ld bytes\n", + "%s: truncating inode %lu to %Ld bytes\n", __FUNCTION__, inode->i_ino, inode->i_size); - jbd_debug(2, "truncating inode %ld to %Ld bytes\n", + jbd_debug(2, "truncating inode %lu to %Ld bytes\n", inode->i_ino, inode->i_size); ext3_truncate(inode); nr_truncates++; } else { printk(KERN_DEBUG - "%s: deleting unreferenced inode %ld\n", + "%s: deleting unreferenced inode %lu\n", __FUNCTION__, inode->i_ino); - jbd_debug(2, "deleting unreferenced inode %ld\n", + jbd_debug(2, "deleting unreferenced inode %lu\n", inode->i_ino); nr_orphans++; } @@ -1390,7 +1395,7 @@ ext3_fsblk_t sb_block = get_sb_block(&data); ext3_fsblk_t logic_sb_block; unsigned long offset = 0; - unsigned long journal_inum = 0; + unsigned int journal_inum = 0; unsigned long journal_devnum = 0; unsigned long def_mount_opts; struct inode *root; @@ -1401,11 +1406,10 @@ int needs_recovery; __le32 features; - sbi = kmalloc(sizeof(*sbi), GFP_KERNEL); + sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); if (!sbi) return -ENOMEM; sb->s_fs_info = sbi; - memset(sbi, 0, sizeof(*sbi)); sbi->s_mount_opt = 0; sbi->s_resuid = EXT3_DEF_RESUID; sbi->s_resgid = EXT3_DEF_RESGID; @@ -1483,7 +1487,7 @@ (EXT3_HAS_COMPAT_FEATURE(sb, ~0U) || EXT3_HAS_RO_COMPAT_FEATURE(sb, ~0U) || EXT3_HAS_INCOMPAT_FEATURE(sb, ~0U))) - printk(KERN_WARNING + printk(KERN_WARNING "EXT3-fs warning: feature flags set on rev 0 fs, " "running e2fsck is recommended\n"); /* @@ -1509,7 +1513,7 @@ if (blocksize < EXT3_MIN_BLOCK_SIZE || blocksize > EXT3_MAX_BLOCK_SIZE) { - printk(KERN_ERR + printk(KERN_ERR "EXT3-fs: Unsupported filesystem blocksize %d on %s.\n", blocksize, sb->s_id); goto failed_mount; @@ -1533,14 +1537,14 @@ offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize; bh = sb_bread(sb, logic_sb_block); if (!bh) { - printk(KERN_ERR + printk(KERN_ERR "EXT3-fs: Can't read superblock on 2nd try.\n"); goto failed_mount; } es = (struct ext3_super_block *)(((char *)bh->b_data) + offset); sbi->s_es = es; if (es->s_magic != cpu_to_le16(EXT3_SUPER_MAGIC)) { - printk (KERN_ERR + printk (KERN_ERR "EXT3-fs: Magic mismatch, very weird !\n"); goto failed_mount; } @@ -1622,10 +1626,9 @@ if (EXT3_BLOCKS_PER_GROUP(sb) == 0) goto cantfind_ext3; - sbi->s_groups_count = (le32_to_cpu(es->s_blocks_count) - - le32_to_cpu(es->s_first_data_block) + - EXT3_BLOCKS_PER_GROUP(sb) - 1) / - EXT3_BLOCKS_PER_GROUP(sb); + sbi->s_groups_count = ((le32_to_cpu(es->s_blocks_count) - + le32_to_cpu(es->s_first_data_block) - 1) + / EXT3_BLOCKS_PER_GROUP(sb)) + 1; db_count = (sbi->s_groups_count + EXT3_DESC_PER_BLOCK(sb) - 1) / EXT3_DESC_PER_BLOCK(sb); sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *), @@ -1820,7 +1823,7 @@ /* * Setup any per-fs journal parameters now. We'll do this both on * initial mount, once the journal has been initialised but before we've - * done any recovery; and again on any subsequent remount. + * done any recovery; and again on any subsequent remount. */ static void ext3_init_journal_params(struct super_block *sb, journal_t *journal) { @@ -1840,7 +1843,8 @@ spin_unlock(&journal->j_state_lock); } -static journal_t *ext3_get_journal(struct super_block *sb, int journal_inum) +static journal_t *ext3_get_journal(struct super_block *sb, + unsigned int journal_inum) { struct inode *journal_inode; journal_t *journal; @@ -1975,7 +1979,7 @@ unsigned long journal_devnum) { journal_t *journal; - int journal_inum = le32_to_cpu(es->s_journal_inum); + unsigned int journal_inum = le32_to_cpu(es->s_journal_inum); dev_t journal_dev; int err = 0; int really_read_only; @@ -2061,7 +2065,7 @@ static int ext3_create_journal(struct super_block * sb, struct ext3_super_block * es, - int journal_inum) + unsigned int journal_inum) { journal_t *journal; @@ -2074,7 +2078,7 @@ if (!(journal = ext3_get_journal(sb, journal_inum))) return -EINVAL; - printk(KERN_INFO "EXT3-fs: creating new journal on inode %d\n", + printk(KERN_INFO "EXT3-fs: creating new journal on inode %u\n", journal_inum); if (journal_create(journal)) { @@ -2342,10 +2346,8 @@ */ ext3_clear_journal_err(sb, es); sbi->s_mount_state = le16_to_cpu(es->s_state); - if ((ret = ext3_group_extend(sb, es, n_blocks_count))) { - err = ret; + if ((err = ext3_group_extend(sb, es, n_blocks_count))) goto restore_opts; - } if (!ext3_setup_super (sb, es, 0)) sb->s_flags &= ~MS_RDONLY; } @@ -2734,7 +2736,7 @@ out: destroy_inodecache(); out1: - exit_ext3_xattr(); + exit_ext3_xattr(); return err; }
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c index a44a056..f86f248 100644 --- a/fs/ext3/xattr.c +++ b/fs/ext3/xattr.c
@@ -75,7 +75,7 @@ #ifdef EXT3_XATTR_DEBUG # define ea_idebug(inode, f...) do { \ - printk(KERN_DEBUG "inode %s:%ld: ", \ + printk(KERN_DEBUG "inode %s:%lu: ", \ inode->i_sb->s_id, inode->i_ino); \ printk(f); \ printk("\n"); \ @@ -233,7 +233,7 @@ atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount)); if (ext3_xattr_check_block(bh)) { bad_block: ext3_error(inode->i_sb, __FUNCTION__, - "inode %ld: bad block "E3FSBLK, inode->i_ino, + "inode %lu: bad block "E3FSBLK, inode->i_ino, EXT3_I(inode)->i_file_acl); error = -EIO; goto cleanup; @@ -375,7 +375,7 @@ atomic_read(&(bh->b_count)), le32_to_cpu(BHDR(bh)->h_refcount)); if (ext3_xattr_check_block(bh)) { ext3_error(inode->i_sb, __FUNCTION__, - "inode %ld: bad block "E3FSBLK, inode->i_ino, + "inode %lu: bad block "E3FSBLK, inode->i_ino, EXT3_I(inode)->i_file_acl); error = -EIO; goto cleanup; @@ -647,7 +647,7 @@ le32_to_cpu(BHDR(bs->bh)->h_refcount)); if (ext3_xattr_check_block(bs->bh)) { ext3_error(sb, __FUNCTION__, - "inode %ld: bad block "E3FSBLK, inode->i_ino, + "inode %lu: bad block "E3FSBLK, inode->i_ino, EXT3_I(inode)->i_file_acl); error = -EIO; goto cleanup; @@ -848,7 +848,7 @@ bad_block: ext3_error(inode->i_sb, __FUNCTION__, - "inode %ld: bad block "E3FSBLK, inode->i_ino, + "inode %lu: bad block "E3FSBLK, inode->i_ino, EXT3_I(inode)->i_file_acl); goto cleanup; @@ -1077,14 +1077,14 @@ bh = sb_bread(inode->i_sb, EXT3_I(inode)->i_file_acl); if (!bh) { ext3_error(inode->i_sb, __FUNCTION__, - "inode %ld: block "E3FSBLK" read error", inode->i_ino, + "inode %lu: block "E3FSBLK" read error", inode->i_ino, EXT3_I(inode)->i_file_acl); goto cleanup; } if (BHDR(bh)->h_magic != cpu_to_le32(EXT3_XATTR_MAGIC) || BHDR(bh)->h_blocks != cpu_to_le32(1)) { ext3_error(inode->i_sb, __FUNCTION__, - "inode %ld: bad block "E3FSBLK, inode->i_ino, + "inode %lu: bad block "E3FSBLK, inode->i_ino, EXT3_I(inode)->i_file_acl); goto cleanup; } @@ -1211,7 +1211,7 @@ bh = sb_bread(inode->i_sb, ce->e_block); if (!bh) { ext3_error(inode->i_sb, __FUNCTION__, - "inode %ld: block %lu read error", + "inode %lu: block %lu read error", inode->i_ino, (unsigned long) ce->e_block); } else if (le32_to_cpu(BHDR(bh)->h_refcount) >= EXT3_XATTR_REFCOUNT_MAX) {
diff --git a/fs/fat/cache.c b/fs/fat/cache.c index 97b967b..82cc4f59 100644 --- a/fs/fat/cache.c +++ b/fs/fat/cache.c
@@ -58,8 +58,7 @@ void fat_cache_destroy(void) { - if (kmem_cache_destroy(fat_cache_cachep)) - printk(KERN_INFO "fat_cache: not all structures were freed\n"); + kmem_cache_destroy(fat_cache_cachep); } static inline struct fat_cache *fat_cache_alloc(struct inode *inode)
diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 31b7174..ab96ae8 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c
@@ -50,14 +50,14 @@ return err; } -static int __fat_get_blocks(struct inode *inode, sector_t iblock, - unsigned long *max_blocks, - struct buffer_head *bh_result, int create) +static inline int __fat_get_block(struct inode *inode, sector_t iblock, + unsigned long *max_blocks, + struct buffer_head *bh_result, int create) { struct super_block *sb = inode->i_sb; struct msdos_sb_info *sbi = MSDOS_SB(sb); - sector_t phys; unsigned long mapped_blocks; + sector_t phys; int err, offset; err = fat_bmap(inode, iblock, &phys, &mapped_blocks); @@ -73,7 +73,7 @@ if (iblock != MSDOS_I(inode)->mmu_private >> sb->s_blocksize_bits) { fat_fs_panic(sb, "corrupted file size (i_pos %lld, %lld)", - MSDOS_I(inode)->i_pos, MSDOS_I(inode)->mmu_private); + MSDOS_I(inode)->i_pos, MSDOS_I(inode)->mmu_private); return -EIO; } @@ -93,32 +93,27 @@ err = fat_bmap(inode, iblock, &phys, &mapped_blocks); if (err) return err; + BUG_ON(!phys); BUG_ON(*max_blocks != mapped_blocks); set_buffer_new(bh_result); map_bh(bh_result, sb, phys); - return 0; -} -static int fat_get_blocks(struct inode *inode, sector_t iblock, - struct buffer_head *bh_result, int create) -{ - struct super_block *sb = inode->i_sb; - int err; - unsigned long max_blocks = bh_result->b_size >> inode->i_blkbits; - - err = __fat_get_blocks(inode, iblock, &max_blocks, bh_result, create); - if (err) - return err; - bh_result->b_size = max_blocks << sb->s_blocksize_bits; return 0; } static int fat_get_block(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create) { - unsigned long max_blocks = 1; - return __fat_get_blocks(inode, iblock, &max_blocks, bh_result, create); + struct super_block *sb = inode->i_sb; + unsigned long max_blocks = bh_result->b_size >> inode->i_blkbits; + int err; + + err = __fat_get_block(inode, iblock, &max_blocks, bh_result, create); + if (err) + return err; + bh_result->b_size = max_blocks << sb->s_blocksize_bits; + return 0; } static int fat_writepage(struct page *page, struct writeback_control *wbc) @@ -188,7 +183,7 @@ * condition of fat_get_block() and ->truncate(). */ return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, - offset, nr_segs, fat_get_blocks, NULL); + offset, nr_segs, fat_get_block, NULL); } static sector_t _fat_bmap(struct address_space *mapping, sector_t block) @@ -375,8 +370,6 @@ inode->i_flags |= S_IMMUTABLE; } MSDOS_I(inode)->i_attrs = de->attr & ATTR_UNUSED; - /* this is as close to the truth as we can get ... */ - inode->i_blksize = sbi->cluster_size; inode->i_blocks = ((inode->i_size + (sbi->cluster_size - 1)) & ~((loff_t)sbi->cluster_size - 1)) >> 9; inode->i_mtime.tv_sec = @@ -528,8 +521,7 @@ static void __exit fat_destroy_inodecache(void) { - if (kmem_cache_destroy(fat_inode_cachep)) - printk(KERN_INFO "fat_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(fat_inode_cachep); } static int fat_remount(struct super_block *sb, int *flags, char *data) @@ -1137,7 +1129,6 @@ MSDOS_I(inode)->i_start = 0; inode->i_size = sbi->dir_entries * sizeof(struct msdos_dir_entry); } - inode->i_blksize = sbi->cluster_size; inode->i_blocks = ((inode->i_size + (sbi->cluster_size - 1)) & ~((loff_t)sbi->cluster_size - 1)) >> 9; MSDOS_I(inode)->i_logstart = 0; @@ -1168,11 +1159,10 @@ long error; char buf[50]; - sbi = kmalloc(sizeof(struct msdos_sb_info), GFP_KERNEL); + sbi = kzalloc(sizeof(struct msdos_sb_info), GFP_KERNEL); if (!sbi) return -ENOMEM; sb->s_fs_info = sbi; - memset(sbi, 0, sizeof(struct msdos_sb_info)); sb->s_flags |= MS_NODIRATIME; sb->s_magic = MSDOS_SUPER_MAGIC;
diff --git a/fs/file.c b/fs/file.c index b3c6b82..8d3bfca 100644 --- a/fs/file.c +++ b/fs/file.c
@@ -281,10 +281,8 @@ out2: nfds = fdt->max_fdset; out: - if (new_openset) - free_fdset(new_openset, nfds); - if (new_execset) - free_fdset(new_execset, nfds); + free_fdset(new_openset, nfds); + free_fdset(new_execset, nfds); kfree(fdt); return NULL; }
diff --git a/fs/file_table.c b/fs/file_table.c index 0131ba0..bc35a40 100644 --- a/fs/file_table.c +++ b/fs/file_table.c
@@ -169,7 +169,7 @@ if (file->f_op && file->f_op->release) file->f_op->release(inode, file); security_file_free(file); - if (unlikely(inode->i_cdev != NULL)) + if (unlikely(S_ISCHR(inode->i_mode) && inode->i_cdev != NULL)) cdev_put(inode->i_cdev); fops_put(file->f_op); if (file->f_mode & FMODE_WRITE)
diff --git a/fs/freevxfs/vxfs.h b/fs/freevxfs/vxfs.h index d35979a..c8a9265 100644 --- a/fs/freevxfs/vxfs.h +++ b/fs/freevxfs/vxfs.h
@@ -252,7 +252,7 @@ * Get filesystem private data from VFS inode. */ #define VXFS_INO(ip) \ - ((struct vxfs_inode_info *)(ip)->u.generic_ip) + ((struct vxfs_inode_info *)(ip)->i_private) /* * Get filesystem private data from VFS superblock.
diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c index ca6a397..4786d51 100644 --- a/fs/freevxfs/vxfs_inode.c +++ b/fs/freevxfs/vxfs_inode.c
@@ -239,11 +239,10 @@ ip->i_ctime.tv_nsec = 0; ip->i_mtime.tv_nsec = 0; - ip->i_blksize = PAGE_SIZE; ip->i_blocks = vip->vii_blocks; ip->i_generation = vip->vii_gen; - ip->u.generic_ip = (void *)vip; + ip->i_private = vip; } @@ -338,5 +337,5 @@ void vxfs_clear_inode(struct inode *ip) { - kmem_cache_free(vxfs_inode_cachep, ip->u.generic_ip); + kmem_cache_free(vxfs_inode_cachep, ip->i_private); }
diff --git a/fs/fuse/control.c b/fs/fuse/control.c index 46fe60b..79ec1f2 100644 --- a/fs/fuse/control.c +++ b/fs/fuse/control.c
@@ -23,7 +23,7 @@ { struct fuse_conn *fc; mutex_lock(&fuse_mutex); - fc = file->f_dentry->d_inode->u.generic_ip; + fc = file->f_dentry->d_inode->i_private; if (fc) fc = fuse_conn_get(fc); mutex_unlock(&fuse_mutex); @@ -98,7 +98,7 @@ inode->i_op = iop; inode->i_fop = fop; inode->i_nlink = nlink; - inode->u.generic_ip = fc; + inode->i_private = fc; d_add(dentry, inode); return dentry; } @@ -150,7 +150,7 @@ for (i = fc->ctl_ndents - 1; i >= 0; i--) { struct dentry *dentry = fc->ctl_dentry[i]; - dentry->d_inode->u.generic_ip = NULL; + dentry->d_inode->i_private = NULL; d_drop(dentry); dput(dentry); }
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 7d25092..cb7cadb 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c
@@ -118,7 +118,6 @@ inode->i_uid = attr->uid; inode->i_gid = attr->gid; i_size_write(inode, attr->size); - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = attr->blocks; inode->i_atime.tv_sec = attr->atime; inode->i_atime.tv_nsec = attr->atimensec;
diff --git a/fs/hfs/bnode.c b/fs/hfs/bnode.c index 13231dd..0d20006 100644 --- a/fs/hfs/bnode.c +++ b/fs/hfs/bnode.c
@@ -249,10 +249,9 @@ sb = tree->inode->i_sb; size = sizeof(struct hfs_bnode) + tree->pages_per_bnode * sizeof(struct page *); - node = kmalloc(size, GFP_KERNEL); + node = kzalloc(size, GFP_KERNEL); if (!node) return NULL; - memset(node, 0, size); node->tree = tree; node->this = cnid; set_bit(HFS_BNODE_NEW, &node->flags);
diff --git a/fs/hfs/btree.c b/fs/hfs/btree.c index 4003579..5fd0ed7 100644 --- a/fs/hfs/btree.c +++ b/fs/hfs/btree.c
@@ -21,10 +21,9 @@ struct page *page; unsigned int size; - tree = kmalloc(sizeof(*tree), GFP_KERNEL); + tree = kzalloc(sizeof(*tree), GFP_KERNEL); if (!tree) return NULL; - memset(tree, 0, sizeof(*tree)); init_MUTEX(&tree->tree_lock); spin_lock_init(&tree->hash_lock);
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c index 315cf44..d05641c 100644 --- a/fs/hfs/inode.c +++ b/fs/hfs/inode.c
@@ -154,7 +154,6 @@ inode->i_gid = current->fsgid; inode->i_nlink = 1; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; - inode->i_blksize = HFS_SB(sb)->alloc_blksz; HFS_I(inode)->flags = 0; HFS_I(inode)->rsrc_inode = NULL; HFS_I(inode)->fs_blocks = 0; @@ -284,7 +283,6 @@ inode->i_uid = hsb->s_uid; inode->i_gid = hsb->s_gid; inode->i_nlink = 1; - inode->i_blksize = HFS_SB(inode->i_sb)->alloc_blksz; if (idata->key) HFS_I(inode)->cat_key = *idata->key;
diff --git a/fs/hfs/super.c b/fs/hfs/super.c index 34937ee..d43b4fc 100644 --- a/fs/hfs/super.c +++ b/fs/hfs/super.c
@@ -356,11 +356,10 @@ struct inode *root_inode; int res; - sbi = kmalloc(sizeof(struct hfs_sb_info), GFP_KERNEL); + sbi = kzalloc(sizeof(struct hfs_sb_info), GFP_KERNEL); if (!sbi) return -ENOMEM; sb->s_fs_info = sbi; - memset(sbi, 0, sizeof(struct hfs_sb_info)); INIT_HLIST_HEAD(&sbi->rsrc_inodes); res = -EINVAL; @@ -455,8 +454,7 @@ static void __exit exit_hfs_fs(void) { unregister_filesystem(&hfs_fs_type); - if (kmem_cache_destroy(hfs_inode_cachep)) - printk(KERN_ERR "hfs_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(hfs_inode_cachep); } module_init(init_hfs_fs)
diff --git a/fs/hfsplus/bnode.c b/fs/hfsplus/bnode.c index 77bf434..29da657 100644 --- a/fs/hfsplus/bnode.c +++ b/fs/hfsplus/bnode.c
@@ -409,10 +409,9 @@ sb = tree->inode->i_sb; size = sizeof(struct hfs_bnode) + tree->pages_per_bnode * sizeof(struct page *); - node = kmalloc(size, GFP_KERNEL); + node = kzalloc(size, GFP_KERNEL); if (!node) return NULL; - memset(node, 0, size); node->tree = tree; node->this = cnid; set_bit(HFS_BNODE_NEW, &node->flags);
diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c index cfc852f..a9b9e87 100644 --- a/fs/hfsplus/btree.c +++ b/fs/hfsplus/btree.c
@@ -24,10 +24,9 @@ struct page *page; unsigned int size; - tree = kmalloc(sizeof(*tree), GFP_KERNEL); + tree = kzalloc(sizeof(*tree), GFP_KERNEL); if (!tree) return NULL; - memset(tree, 0, sizeof(*tree)); init_MUTEX(&tree->tree_lock); spin_lock_init(&tree->hash_lock);
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c index 924ecde..0eb1a60 100644 --- a/fs/hfsplus/inode.c +++ b/fs/hfsplus/inode.c
@@ -304,7 +304,6 @@ inode->i_gid = current->fsgid; inode->i_nlink = 1; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; - inode->i_blksize = HFSPLUS_SB(sb).alloc_blksz; INIT_LIST_HEAD(&HFSPLUS_I(inode).open_dir_list); init_MUTEX(&HFSPLUS_I(inode).extents_lock); atomic_set(&HFSPLUS_I(inode).opencnt, 0); @@ -407,7 +406,6 @@ type = hfs_bnode_read_u16(fd->bnode, fd->entryoffset); HFSPLUS_I(inode).dev = 0; - inode->i_blksize = HFSPLUS_SB(inode->i_sb).alloc_blksz; if (type == HFSPLUS_FOLDER) { struct hfsplus_cat_folder *folder = &entry.folder;
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c index d279d59..194eede 100644 --- a/fs/hfsplus/super.c +++ b/fs/hfsplus/super.c
@@ -493,8 +493,7 @@ static void __exit exit_hfsplus_fs(void) { unregister_filesystem(&hfsplus_fs_type); - if (kmem_cache_destroy(hfsplus_inode_cachep)) - printk(KERN_ERR "hfsplus_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(hfsplus_inode_cachep); } module_init(init_hfsplus_fs)
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index b82e3d9..322e876 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c
@@ -156,7 +156,6 @@ ino->i_mode = i_mode; ino->i_nlink = i_nlink; ino->i_size = i_size; - ino->i_blksize = i_blksize; ino->i_blocks = i_blocks; return(0); }
diff --git a/fs/hpfs/buffer.c b/fs/hpfs/buffer.c index 2807aa8..b52b738 100644 --- a/fs/hpfs/buffer.c +++ b/fs/hpfs/buffer.c
@@ -76,7 +76,7 @@ return NULL; } - qbh->data = data = (char *)kmalloc(2048, GFP_NOFS); + qbh->data = data = kmalloc(2048, GFP_NOFS); if (!data) { printk("HPFS: hpfs_map_4sectors: out of memory\n"); goto bail;
diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c index 56f2c33..bcf6ee3 100644 --- a/fs/hpfs/inode.c +++ b/fs/hpfs/inode.c
@@ -17,7 +17,6 @@ i->i_gid = hpfs_sb(sb)->sb_gid; i->i_mode = hpfs_sb(sb)->sb_mode; hpfs_inode->i_conv = hpfs_sb(sb)->sb_conv; - i->i_blksize = 512; i->i_size = -1; i->i_blocks = -1;
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c index 8fe51c3..450b5e0 100644 --- a/fs/hpfs/super.c +++ b/fs/hpfs/super.c
@@ -203,8 +203,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(hpfs_inode_cachep)) - printk(KERN_INFO "hpfs_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(hpfs_inode_cachep); } /* @@ -462,11 +461,10 @@ int o; - sbi = kmalloc(sizeof(*sbi), GFP_KERNEL); + sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); if (!sbi) return -ENOMEM; s->s_fs_info = sbi; - memset(sbi, 0, sizeof(*sbi)); sbi->sb_bmp_dir = NULL; sbi->sb_cp_table = NULL;
diff --git a/fs/hppfs/hppfs_kern.c b/fs/hppfs/hppfs_kern.c index 3a9bdf58..dcb6d2e 100644 --- a/fs/hppfs/hppfs_kern.c +++ b/fs/hppfs/hppfs_kern.c
@@ -152,7 +152,6 @@ ino->i_mode = proc_ino->i_mode; ino->i_nlink = proc_ino->i_nlink; ino->i_size = proc_ino->i_size; - ino->i_blksize = proc_ino->i_blksize; ino->i_blocks = proc_ino->i_blocks; }
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index c3920c9..e025a31 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c
@@ -357,7 +357,6 @@ inode->i_mode = mode; inode->i_uid = uid; inode->i_gid = gid; - inode->i_blksize = HPAGE_SIZE; inode->i_blocks = 0; inode->i_mapping->a_ops = &hugetlbfs_aops; inode->i_mapping->backing_dev_info =&hugetlbfs_backing_dev_info;
diff --git a/fs/inode.c b/fs/inode.c index 0bf9f04..f5c04dd 100644 --- a/fs/inode.c +++ b/fs/inode.c
@@ -163,7 +163,7 @@ bdi = sb->s_bdev->bd_inode->i_mapping->backing_dev_info; mapping->backing_dev_info = bdi; } - memset(&inode->u, 0, sizeof(inode->u)); + inode->i_private = 0; inode->i_mapping = mapping; } return inode; @@ -254,9 +254,9 @@ DQUOT_DROP(inode); if (inode->i_sb && inode->i_sb->s_op->clear_inode) inode->i_sb->s_op->clear_inode(inode); - if (inode->i_bdev) + if (S_ISBLK(inode->i_mode) && inode->i_bdev) bd_forget(inode); - if (inode->i_cdev) + if (S_ISCHR(inode->i_mode) && inode->i_cdev) cd_forget(inode); inode->i_state = I_CLEAR; }
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index 1439136..4527692 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c
@@ -96,9 +96,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(isofs_inode_cachep)) - printk(KERN_INFO "iso_inode_cache: not all structures were " - "freed\n"); + kmem_cache_destroy(isofs_inode_cachep); } static int isofs_remount(struct super_block *sb, int *flags, char *data) @@ -557,11 +555,10 @@ struct iso9660_options opt; struct isofs_sb_info * sbi; - sbi = kmalloc(sizeof(*sbi), GFP_KERNEL); + sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); if (!sbi) return -ENOMEM; s->s_fs_info = sbi; - memset(sbi, 0, sizeof(*sbi)); if (!parse_options((char *)data, &opt)) goto out_freesbi; @@ -1238,7 +1235,7 @@ } inode->i_uid = sbi->s_uid; inode->i_gid = sbi->s_gid; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; ei->i_format_parm[0] = 0; ei->i_format_parm[1] = 0; @@ -1294,7 +1291,6 @@ isonum_711 (de->ext_attr_length)); /* Set the number of blocks for stat() - should be done before RR */ - inode->i_blksize = PAGE_CACHE_SIZE; /* For stat() only */ inode->i_blocks = (inode->i_size + 511) >> 9; /*
diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c index 47678a2..0208cc7 100644 --- a/fs/jbd/checkpoint.c +++ b/fs/jbd/checkpoint.c
@@ -1,6 +1,6 @@ /* * linux/fs/checkpoint.c - * + * * Written by Stephen C. Tweedie <sct@redhat.com>, 1999 * * Copyright 1999 Red Hat Software --- All Rights Reserved @@ -9,8 +9,8 @@ * the terms of the GNU General Public License, version 2, or at your * option, any later version, incorporated herein by reference. * - * Checkpoint routines for the generic filesystem journaling code. - * Part of the ext2fs journaling system. + * Checkpoint routines for the generic filesystem journaling code. + * Part of the ext2fs journaling system. * * Checkpointing is the process of ensuring that a section of the log is * committed fully to disk, so that that portion of the log can be @@ -145,6 +145,7 @@ * jbd_unlock_bh_state(). */ static void jbd_sync_bh(journal_t *journal, struct buffer_head *bh) + __releases(journal->j_list_lock) { get_bh(bh); spin_unlock(&journal->j_list_lock); @@ -225,7 +226,7 @@ * Try to flush one buffer from the checkpoint list to disk. * * Return 1 if something happened which requires us to abort the current - * scan of the checkpoint list. + * scan of the checkpoint list. * * Called with j_list_lock held and drops it if 1 is returned * Called under jbd_lock_bh_state(jh2bh(jh)), and drops it @@ -269,7 +270,7 @@ * possibly block, while still holding the journal lock. * We cannot afford to let the transaction logic start * messing around with this buffer before we write it to - * disk, as that would break recoverability. + * disk, as that would break recoverability. */ BUFFER_TRACE(bh, "queue"); get_bh(bh); @@ -292,7 +293,7 @@ * Perform an actual checkpoint. We take the first transaction on the * list of transactions to be checkpointed and send all its buffers * to disk. We submit larger chunks of data at once. - * + * * The journal should be locked before calling this function. */ int log_do_checkpoint(journal_t *journal) @@ -303,10 +304,10 @@ jbd_debug(1, "Start checkpoint\n"); - /* + /* * First thing: if there are any transactions in the log which * don't need checkpointing, just eliminate them from the - * journal straight away. + * journal straight away. */ result = cleanup_journal_tail(journal); jbd_debug(1, "cleanup_journal_tail returned %d\n", result); @@ -384,9 +385,9 @@ * we have already got rid of any since the last update of the log tail * in the journal superblock. If so, we can instantly roll the * superblock forward to remove those transactions from the log. - * + * * Return <0 on error, 0 on success, 1 if there was nothing to clean up. - * + * * Called with the journal lock held. * * This is the only part of the journaling code which really needs to be @@ -403,8 +404,8 @@ unsigned long blocknr, freed; /* OK, work out the oldest transaction remaining in the log, and - * the log block it starts at. - * + * the log block it starts at. + * * If the log is now empty, we need to work out which is the * next transaction ID we will write, and where it will * start. */ @@ -479,7 +480,7 @@ if (!jh) return 0; - last_jh = jh->b_cpprev; + last_jh = jh->b_cpprev; do { jh = next_jh; next_jh = jh->b_cpnext; @@ -557,7 +558,7 @@ return ret; } -/* +/* * journal_remove_checkpoint: called after a buffer has been committed * to disk (either by being write-back flushed to disk, or being * committed to the log). @@ -635,7 +636,7 @@ * Called with the journal locked. * Called with j_list_lock held. */ -void __journal_insert_checkpoint(struct journal_head *jh, +void __journal_insert_checkpoint(struct journal_head *jh, transaction_t *transaction) { JBUFFER_TRACE(jh, "entry"); @@ -657,7 +658,7 @@ /* * We've finished with this transaction structure: adios... - * + * * The transaction must have no links except for the checkpoint by this * point. *
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c index 42da607..32a8caf 100644 --- a/fs/jbd/commit.c +++ b/fs/jbd/commit.c
@@ -160,6 +160,117 @@ return (ret == -EIO); } +static void journal_do_submit_data(struct buffer_head **wbuf, int bufs) +{ + int i; + + for (i = 0; i < bufs; i++) { + wbuf[i]->b_end_io = end_buffer_write_sync; + /* We use-up our safety reference in submit_bh() */ + submit_bh(WRITE, wbuf[i]); + } +} + +/* + * Submit all the data buffers to disk + */ +static void journal_submit_data_buffers(journal_t *journal, + transaction_t *commit_transaction) +{ + struct journal_head *jh; + struct buffer_head *bh; + int locked; + int bufs = 0; + struct buffer_head **wbuf = journal->j_wbuf; + + /* + * Whenever we unlock the journal and sleep, things can get added + * onto ->t_sync_datalist, so we have to keep looping back to + * write_out_data until we *know* that the list is empty. + * + * Cleanup any flushed data buffers from the data list. Even in + * abort mode, we want to flush this out as soon as possible. + */ +write_out_data: + cond_resched(); + spin_lock(&journal->j_list_lock); + + while (commit_transaction->t_sync_datalist) { + jh = commit_transaction->t_sync_datalist; + bh = jh2bh(jh); + locked = 0; + + /* Get reference just to make sure buffer does not disappear + * when we are forced to drop various locks */ + get_bh(bh); + /* If the buffer is dirty, we need to submit IO and hence + * we need the buffer lock. We try to lock the buffer without + * blocking. If we fail, we need to drop j_list_lock and do + * blocking lock_buffer(). + */ + if (buffer_dirty(bh)) { + if (test_set_buffer_locked(bh)) { + BUFFER_TRACE(bh, "needs blocking lock"); + spin_unlock(&journal->j_list_lock); + /* Write out all data to prevent deadlocks */ + journal_do_submit_data(wbuf, bufs); + bufs = 0; + lock_buffer(bh); + spin_lock(&journal->j_list_lock); + } + locked = 1; + } + /* We have to get bh_state lock. Again out of order, sigh. */ + if (!inverted_lock(journal, bh)) { + jbd_lock_bh_state(bh); + spin_lock(&journal->j_list_lock); + } + /* Someone already cleaned up the buffer? */ + if (!buffer_jbd(bh) + || jh->b_transaction != commit_transaction + || jh->b_jlist != BJ_SyncData) { + jbd_unlock_bh_state(bh); + if (locked) + unlock_buffer(bh); + BUFFER_TRACE(bh, "already cleaned up"); + put_bh(bh); + continue; + } + if (locked && test_clear_buffer_dirty(bh)) { + BUFFER_TRACE(bh, "needs writeout, adding to array"); + wbuf[bufs++] = bh; + __journal_file_buffer(jh, commit_transaction, + BJ_Locked); + jbd_unlock_bh_state(bh); + if (bufs == journal->j_wbufsize) { + spin_unlock(&journal->j_list_lock); + journal_do_submit_data(wbuf, bufs); + bufs = 0; + goto write_out_data; + } + } + else { + BUFFER_TRACE(bh, "writeout complete: unfile"); + __journal_unfile_buffer(jh); + jbd_unlock_bh_state(bh); + if (locked) + unlock_buffer(bh); + journal_remove_journal_head(bh); + /* Once for our safety reference, once for + * journal_remove_journal_head() */ + put_bh(bh); + put_bh(bh); + } + + if (lock_need_resched(&journal->j_list_lock)) { + spin_unlock(&journal->j_list_lock); + goto write_out_data; + } + } + spin_unlock(&journal->j_list_lock); + journal_do_submit_data(wbuf, bufs); +} + /* * journal_commit_transaction * @@ -313,80 +424,13 @@ * Now start flushing things to disk, in the order they appear * on the transaction lists. Data blocks go first. */ - err = 0; - /* - * Whenever we unlock the journal and sleep, things can get added - * onto ->t_sync_datalist, so we have to keep looping back to - * write_out_data until we *know* that the list is empty. - */ - bufs = 0; - /* - * Cleanup any flushed data buffers from the data list. Even in - * abort mode, we want to flush this out as soon as possible. - */ -write_out_data: - cond_resched(); - spin_lock(&journal->j_list_lock); - - while (commit_transaction->t_sync_datalist) { - struct buffer_head *bh; - - jh = commit_transaction->t_sync_datalist; - commit_transaction->t_sync_datalist = jh->b_tnext; - bh = jh2bh(jh); - if (buffer_locked(bh)) { - BUFFER_TRACE(bh, "locked"); - if (!inverted_lock(journal, bh)) - goto write_out_data; - __journal_temp_unlink_buffer(jh); - __journal_file_buffer(jh, commit_transaction, - BJ_Locked); - jbd_unlock_bh_state(bh); - if (lock_need_resched(&journal->j_list_lock)) { - spin_unlock(&journal->j_list_lock); - goto write_out_data; - } - } else { - if (buffer_dirty(bh)) { - BUFFER_TRACE(bh, "start journal writeout"); - get_bh(bh); - wbuf[bufs++] = bh; - if (bufs == journal->j_wbufsize) { - jbd_debug(2, "submit %d writes\n", - bufs); - spin_unlock(&journal->j_list_lock); - ll_rw_block(SWRITE, bufs, wbuf); - journal_brelse_array(wbuf, bufs); - bufs = 0; - goto write_out_data; - } - } else { - BUFFER_TRACE(bh, "writeout complete: unfile"); - if (!inverted_lock(journal, bh)) - goto write_out_data; - __journal_unfile_buffer(jh); - jbd_unlock_bh_state(bh); - journal_remove_journal_head(bh); - put_bh(bh); - if (lock_need_resched(&journal->j_list_lock)) { - spin_unlock(&journal->j_list_lock); - goto write_out_data; - } - } - } - } - - if (bufs) { - spin_unlock(&journal->j_list_lock); - ll_rw_block(SWRITE, bufs, wbuf); - journal_brelse_array(wbuf, bufs); - spin_lock(&journal->j_list_lock); - } + journal_submit_data_buffers(journal, commit_transaction); /* * Wait for all previously submitted IO to complete. */ + spin_lock(&journal->j_list_lock); while (commit_transaction->t_locked_list) { struct buffer_head *bh;
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c index f66724c..2fc66c3 100644 --- a/fs/jbd/journal.c +++ b/fs/jbd/journal.c
@@ -181,7 +181,7 @@ transaction->t_expires)) should_sleep = 0; if (journal->j_flags & JFS_UNMOUNT) - should_sleep = 0; + should_sleep = 0; if (should_sleep) { spin_unlock(&journal->j_state_lock); schedule(); @@ -271,7 +271,7 @@ int journal_write_metadata_buffer(transaction_t *transaction, struct journal_head *jh_in, struct journal_head **jh_out, - int blocknr) + unsigned long blocknr) { int need_copy_out = 0; int done_copy_out = 0; @@ -578,7 +578,7 @@ * this is a no-op. If needed, we can use j_blk_offset - everything is * ready. */ -int journal_bmap(journal_t *journal, unsigned long blocknr, +int journal_bmap(journal_t *journal, unsigned long blocknr, unsigned long *retp) { int err = 0; @@ -696,13 +696,13 @@ * @bdev: Block device on which to create the journal * @fs_dev: Device which hold journalled filesystem for this journal. * @start: Block nr Start of journal. - * @len: Lenght of the journal in blocks. + * @len: Length of the journal in blocks. * @blocksize: blocksize of journalling device * @returns: a newly created journal_t * - * + * * journal_init_dev creates a journal which maps a fixed contiguous * range of blocks on an arbitrary block device. - * + * */ journal_t * journal_init_dev(struct block_device *bdev, struct block_device *fs_dev, @@ -739,11 +739,11 @@ return journal; } - -/** + +/** * journal_t * journal_init_inode () - creates a journal which maps to a inode. * @inode: An inode to create the journal in - * + * * journal_init_inode creates a journal which maps an on-disk inode as * the journal. The inode must exist already, must support bmap() and * must have all data blocks preallocated. @@ -763,7 +763,7 @@ journal->j_inode = inode; jbd_debug(1, "journal %p: inode %s/%ld, size %Ld, bits %d, blksize %ld\n", - journal, inode->i_sb->s_id, inode->i_ino, + journal, inode->i_sb->s_id, inode->i_ino, (long long) inode->i_size, inode->i_sb->s_blocksize_bits, inode->i_sb->s_blocksize); @@ -798,10 +798,10 @@ return journal; } -/* +/* * If the journal init or create aborts, we need to mark the journal * superblock as being NULL to prevent the journal destroy from writing - * back a bogus superblock. + * back a bogus superblock. */ static void journal_fail_superblock (journal_t *journal) { @@ -820,7 +820,7 @@ static int journal_reset(journal_t *journal) { journal_superblock_t *sb = journal->j_superblock; - unsigned int first, last; + unsigned long first, last; first = be32_to_cpu(sb->s_first); last = be32_to_cpu(sb->s_maxlen); @@ -844,13 +844,13 @@ return 0; } -/** +/** * int journal_create() - Initialise the new journal file * @journal: Journal to create. This structure must have been initialised - * + * * Given a journal_t structure which tells us which disk blocks we can * use, create a new journal superblock and initialise all of the - * journal fields from scratch. + * journal fields from scratch. **/ int journal_create(journal_t *journal) { @@ -915,7 +915,7 @@ return journal_reset(journal); } -/** +/** * void journal_update_superblock() - Update journal sb on disk. * @journal: The journal to update. * @wait: Set to '0' if you don't want to wait for IO completion. @@ -939,7 +939,7 @@ journal->j_transaction_sequence) { jbd_debug(1,"JBD: Skipping superblock update on recovered sb " "(start %ld, seq %d, errno %d)\n", - journal->j_tail, journal->j_tail_sequence, + journal->j_tail, journal->j_tail_sequence, journal->j_errno); goto out; } @@ -1062,7 +1062,7 @@ /** * int journal_load() - Read journal from disk. * @journal: Journal to act on. - * + * * Given a journal_t structure which tells us which disk blocks contain * a journal, read the journal from disk to initialise the in-memory * structures. @@ -1094,7 +1094,7 @@ /* * Create a slab for this blocksize */ - err = journal_create_jbd_slab(cpu_to_be32(sb->s_blocksize)); + err = journal_create_jbd_slab(be32_to_cpu(sb->s_blocksize)); if (err) return err; @@ -1172,9 +1172,9 @@ * @compat: bitmask of compatible features * @ro: bitmask of features that force read-only mount * @incompat: bitmask of incompatible features - * + * * Check whether the journal uses all of a given set of - * features. Return true (non-zero) if it does. + * features. Return true (non-zero) if it does. **/ int journal_check_used_features (journal_t *journal, unsigned long compat, @@ -1203,7 +1203,7 @@ * @compat: bitmask of compatible features * @ro: bitmask of features that force read-only mount * @incompat: bitmask of incompatible features - * + * * Check whether the journaling code supports the use of * all of a given set of features on this journal. Return true * (non-zero) if it can. */ @@ -1241,7 +1241,7 @@ * @incompat: bitmask of incompatible features * * Mark a given journal feature as present on the - * superblock. Returns true if the requested features could be set. + * superblock. Returns true if the requested features could be set. * */ @@ -1327,7 +1327,7 @@ /** * int journal_flush () - Flush journal * @journal: Journal to act on. - * + * * Flush all data for a given journal to disk and empty the journal. * Filesystems can use this when remounting readonly to ensure that * recovery does not need to happen on remount. @@ -1394,7 +1394,7 @@ * int journal_wipe() - Wipe journal contents * @journal: Journal to act on. * @write: flag (see below) - * + * * Wipe out all of the contents of a journal, safely. This will produce * a warning if the journal contains any valid recovery information. * Must be called between journal_init_*() and journal_load(). @@ -1449,7 +1449,7 @@ /* * Journal abort has very specific semantics, which we describe - * for journal abort. + * for journal abort. * * Two internal function, which provide abort to te jbd layer * itself are here. @@ -1504,7 +1504,7 @@ * Perform a complete, immediate shutdown of the ENTIRE * journal (not of a single transaction). This operation cannot be * undone without closing and reopening the journal. - * + * * The journal_abort function is intended to support higher level error * recovery mechanisms such as the ext2/ext3 remount-readonly error * mode. @@ -1538,7 +1538,7 @@ * supply an errno; a null errno implies that absolutely no further * writes are done to the journal (unless there are any already in * progress). - * + * */ void journal_abort(journal_t *journal, int errno) @@ -1546,7 +1546,7 @@ __journal_abort_soft(journal, errno); } -/** +/** * int journal_errno () - returns the journal's error state. * @journal: journal to examine. * @@ -1570,7 +1570,7 @@ return err; } -/** +/** * int journal_clear_err () - clears the journal's error state * @journal: journal to act on. * @@ -1590,7 +1590,7 @@ return err; } -/** +/** * void journal_ack_err() - Ack journal err. * @journal: journal to act on. * @@ -1612,7 +1612,7 @@ /* * Simple support for retrying memory allocations. Introduced to help to - * debug different VM deadlock avoidance strategies. + * debug different VM deadlock avoidance strategies. */ void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry) { @@ -2047,13 +2047,7 @@ { int ret; -/* Static check for data structure consistency. There's no code - * invoked --- we'll just get a linker failure if things aren't right. - */ - extern void journal_bad_superblock_size(void); - if (sizeof(struct journal_superblock_s) != 1024) - journal_bad_superblock_size(); - + BUILD_BUG_ON(sizeof(struct journal_superblock_s) != 1024); ret = journal_init_caches(); if (ret != 0)
diff --git a/fs/jbd/recovery.c b/fs/jbd/recovery.c index de5bafb4e..445eed6 100644 --- a/fs/jbd/recovery.c +++ b/fs/jbd/recovery.c
@@ -1,6 +1,6 @@ /* * linux/fs/recovery.c - * + * * Written by Stephen C. Tweedie <sct@redhat.com>, 1999 * * Copyright 1999-2000 Red Hat Software --- All Rights Reserved @@ -10,7 +10,7 @@ * option, any later version, incorporated herein by reference. * * Journal recovery routines for the generic filesystem journaling code; - * part of the ext2fs journaling system. + * part of the ext2fs journaling system. */ #ifndef __KERNEL__ @@ -25,9 +25,9 @@ /* * Maintain information about the progress of the recovery job, so that - * the different passes can carry information between them. + * the different passes can carry information between them. */ -struct recovery_info +struct recovery_info { tid_t start_transaction; tid_t end_transaction; @@ -116,7 +116,7 @@ err = 0; failed: - if (nbufs) + if (nbufs) journal_brelse_array(bufs, nbufs); return err; } @@ -128,7 +128,7 @@ * Read a block from the journal */ -static int jread(struct buffer_head **bhp, journal_t *journal, +static int jread(struct buffer_head **bhp, journal_t *journal, unsigned int offset) { int err; @@ -212,14 +212,14 @@ /** * journal_recover - recovers a on-disk journal * @journal: the journal to recover - * + * * The primary function for recovering the log contents when mounting a - * journaled device. + * journaled device. * * Recovery is done in three passes. In the first pass, we look for the * end of the log. In the second, we assemble the list of revoke * blocks. In the third and final pass, we replay any un-revoked blocks - * in the log. + * in the log. */ int journal_recover(journal_t *journal) { @@ -231,10 +231,10 @@ memset(&info, 0, sizeof(info)); sb = journal->j_superblock; - /* + /* * The journal superblock's s_start field (the current log head) * is always zero if, and only if, the journal was cleanly - * unmounted. + * unmounted. */ if (!sb->s_start) { @@ -253,7 +253,7 @@ jbd_debug(0, "JBD: recovery, exit status %d, " "recovered transactions %u to %u\n", err, info.start_transaction, info.end_transaction); - jbd_debug(0, "JBD: Replayed %d and revoked %d/%d blocks\n", + jbd_debug(0, "JBD: Replayed %d and revoked %d/%d blocks\n", info.nr_replays, info.nr_revoke_hits, info.nr_revokes); /* Restart the log at the next transaction ID, thus invalidating @@ -268,15 +268,15 @@ /** * journal_skip_recovery - Start journal and wipe exiting records * @journal: journal to startup - * + * * Locate any valid recovery information from the journal and set up the * journal structures in memory to ignore it (presumably because the - * caller has evidence that it is out of date). + * caller has evidence that it is out of date). * This function does'nt appear to be exorted.. * * We perform one pass over the journal to allow us to tell the user how * much recovery information is being erased, and to let us initialise - * the journal transaction sequence numbers to the next unused ID. + * the journal transaction sequence numbers to the next unused ID. */ int journal_skip_recovery(journal_t *journal) { @@ -297,7 +297,7 @@ #ifdef CONFIG_JBD_DEBUG int dropped = info.end_transaction - be32_to_cpu(sb->s_sequence); #endif - jbd_debug(0, + jbd_debug(0, "JBD: ignoring %d transaction%s from the journal.\n", dropped, (dropped == 1) ? "" : "s"); journal->j_transaction_sequence = ++info.end_transaction; @@ -314,7 +314,7 @@ unsigned long next_log_block; int err, success = 0; journal_superblock_t * sb; - journal_header_t * tmp; + journal_header_t * tmp; struct buffer_head * bh; unsigned int sequence; int blocktype; @@ -324,10 +324,10 @@ MAX_BLOCKS_PER_DESC = ((journal->j_blocksize-sizeof(journal_header_t)) / sizeof(journal_block_tag_t)); - /* + /* * First thing is to establish what we expect to find in the log * (in terms of transaction IDs), and where (in terms of log - * block offsets): query the superblock. + * block offsets): query the superblock. */ sb = journal->j_superblock; @@ -344,7 +344,7 @@ * Now we walk through the log, transaction by transaction, * making sure that each transaction has a commit block in the * expected place. Each complete transaction gets replayed back - * into the main filesystem. + * into the main filesystem. */ while (1) { @@ -379,8 +379,8 @@ next_log_block++; wrap(journal, next_log_block); - /* What kind of buffer is it? - * + /* What kind of buffer is it? + * * If it is a descriptor block, check that it has the * expected sequence number. Otherwise, we're all done * here. */ @@ -394,7 +394,7 @@ blocktype = be32_to_cpu(tmp->h_blocktype); sequence = be32_to_cpu(tmp->h_sequence); - jbd_debug(3, "Found magic %d, sequence %d\n", + jbd_debug(3, "Found magic %d, sequence %d\n", blocktype, sequence); if (sequence != next_commit_ID) { @@ -438,7 +438,7 @@ /* Recover what we can, but * report failure at the end. */ success = err; - printk (KERN_ERR + printk (KERN_ERR "JBD: IO error %d recovering " "block %ld in log\n", err, io_block); @@ -452,7 +452,7 @@ * revoked, then we're all done * here. */ if (journal_test_revoke - (journal, blocknr, + (journal, blocknr, next_commit_ID)) { brelse(obh); ++info->nr_revoke_hits; @@ -465,7 +465,7 @@ blocknr, journal->j_blocksize); if (nbh == NULL) { - printk(KERN_ERR + printk(KERN_ERR "JBD: Out of memory " "during recovery.\n"); err = -ENOMEM; @@ -537,7 +537,7 @@ } done: - /* + /* * We broke out of the log scan loop: either we came to the * known end of the log or we found an unexpected block in the * log. If the latter happened, then we know that the "current" @@ -567,7 +567,7 @@ /* Scan a revoke record, marking all blocks mentioned as revoked. */ -static int scan_revoke_records(journal_t *journal, struct buffer_head *bh, +static int scan_revoke_records(journal_t *journal, struct buffer_head *bh, tid_t sequence, struct recovery_info *info) { journal_revoke_header_t *header;
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c index a561441..c532429 100644 --- a/fs/jbd/revoke.c +++ b/fs/jbd/revoke.c
@@ -1,6 +1,6 @@ /* * linux/fs/revoke.c - * + * * Written by Stephen C. Tweedie <sct@redhat.com>, 2000 * * Copyright 2000 Red Hat corp --- All Rights Reserved @@ -15,10 +15,10 @@ * Revoke is the mechanism used to prevent old log records for deleted * metadata from being replayed on top of newer data using the same * blocks. The revoke mechanism is used in two separate places: - * + * * + Commit: during commit we write the entire list of the current * transaction's revoked blocks to the journal - * + * * + Recovery: during recovery we record the transaction ID of all * revoked blocks. If there are multiple revoke records in the log * for a single block, only the last one counts, and if there is a log @@ -29,7 +29,7 @@ * single transaction: * * Block is revoked and then journaled: - * The desired end result is the journaling of the new block, so we + * The desired end result is the journaling of the new block, so we * cancel the revoke before the transaction commits. * * Block is journaled and then revoked: @@ -41,7 +41,7 @@ * transaction must have happened after the block was journaled and so * the revoke must take precedence. * - * Block is revoked and then written as data: + * Block is revoked and then written as data: * The data write is allowed to succeed, but the revoke is _not_ * cancelled. We still need to prevent old log records from * overwriting the new data. We don't even need to clear the revoke @@ -54,7 +54,7 @@ * buffer has not been revoked, and cancel_revoke * need do nothing. * RevokeValid set, Revoked set: - * buffer has been revoked. + * buffer has been revoked. */ #ifndef __KERNEL__ @@ -77,7 +77,7 @@ journal replay, this involves recording the transaction ID of the last transaction to revoke this block. */ -struct jbd_revoke_record_s +struct jbd_revoke_record_s { struct list_head hash; tid_t sequence; /* Used for recovery only */ @@ -90,8 +90,8 @@ { /* It is conceivable that we might want a larger hash table * for recovery. Must be a power of two. */ - int hash_size; - int hash_shift; + int hash_size; + int hash_shift; struct list_head *hash_table; }; @@ -301,22 +301,22 @@ #ifdef __KERNEL__ -/* +/* * journal_revoke: revoke a given buffer_head from the journal. This * prevents the block from being replayed during recovery if we take a * crash after this current transaction commits. Any subsequent * metadata writes of the buffer in this transaction cancel the - * revoke. + * revoke. * * Note that this call may block --- it is up to the caller to make * sure that there are no further calls to journal_write_metadata * before the revoke is complete. In ext3, this implies calling the * revoke before clearing the block bitmap when we are deleting - * metadata. + * metadata. * * Revoke performs a journal_forget on any buffer_head passed in as a * parameter, but does _not_ forget the buffer_head if the bh was only - * found implicitly. + * found implicitly. * * bh_in may not be a journalled buffer - it may have come off * the hash tables without an attached journal_head. @@ -325,7 +325,7 @@ * by one. */ -int journal_revoke(handle_t *handle, unsigned long blocknr, +int journal_revoke(handle_t *handle, unsigned long blocknr, struct buffer_head *bh_in) { struct buffer_head *bh = NULL; @@ -487,7 +487,7 @@ else journal->j_revoke = journal->j_revoke_table[0]; - for (i = 0; i < journal->j_revoke->hash_size; i++) + for (i = 0; i < journal->j_revoke->hash_size; i++) INIT_LIST_HEAD(&journal->j_revoke->hash_table[i]); } @@ -498,7 +498,7 @@ * Called with the journal lock held. */ -void journal_write_revoke_records(journal_t *journal, +void journal_write_revoke_records(journal_t *journal, transaction_t *transaction) { struct journal_head *descriptor; @@ -507,7 +507,7 @@ struct list_head *hash_list; int i, offset, count; - descriptor = NULL; + descriptor = NULL; offset = 0; count = 0; @@ -519,10 +519,10 @@ hash_list = &revoke->hash_table[i]; while (!list_empty(hash_list)) { - record = (struct jbd_revoke_record_s *) + record = (struct jbd_revoke_record_s *) hash_list->next; write_one_revoke_record(journal, transaction, - &descriptor, &offset, + &descriptor, &offset, record); count++; list_del(&record->hash); @@ -534,14 +534,14 @@ jbd_debug(1, "Wrote %d revoke records\n", count); } -/* +/* * Write out one revoke record. We need to create a new descriptor - * block if the old one is full or if we have not already created one. + * block if the old one is full or if we have not already created one. */ -static void write_one_revoke_record(journal_t *journal, +static void write_one_revoke_record(journal_t *journal, transaction_t *transaction, - struct journal_head **descriptorp, + struct journal_head **descriptorp, int *offsetp, struct jbd_revoke_record_s *record) { @@ -584,21 +584,21 @@ *descriptorp = descriptor; } - * ((__be32 *)(&jh2bh(descriptor)->b_data[offset])) = + * ((__be32 *)(&jh2bh(descriptor)->b_data[offset])) = cpu_to_be32(record->blocknr); offset += 4; *offsetp = offset; } -/* +/* * Flush a revoke descriptor out to the journal. If we are aborting, * this is a noop; otherwise we are generating a buffer which needs to * be waited for during commit, so it has to go onto the appropriate * journal buffer list. */ -static void flush_descriptor(journal_t *journal, - struct journal_head *descriptor, +static void flush_descriptor(journal_t *journal, + struct journal_head *descriptor, int offset) { journal_revoke_header_t *header; @@ -618,7 +618,7 @@ } #endif -/* +/* * Revoke support for recovery. * * Recovery needs to be able to: @@ -629,7 +629,7 @@ * check whether a given block in a given transaction should be replayed * (ie. has not been revoked by a revoke record in that or a subsequent * transaction) - * + * * empty the revoke table after recovery. */ @@ -637,11 +637,11 @@ * First, setting revoke records. We create a new revoke record for * every block ever revoked in the log as we scan it for recovery, and * we update the existing records if we find multiple revokes for a - * single block. + * single block. */ -int journal_set_revoke(journal_t *journal, - unsigned long blocknr, +int journal_set_revoke(journal_t *journal, + unsigned long blocknr, tid_t sequence) { struct jbd_revoke_record_s *record; @@ -653,18 +653,18 @@ if (tid_gt(sequence, record->sequence)) record->sequence = sequence; return 0; - } + } return insert_revoke_hash(journal, blocknr, sequence); } -/* +/* * Test revoke records. For a given block referenced in the log, has * that block been revoked? A revoke record with a given transaction * sequence number revokes all blocks in that transaction and earlier * ones, but later transactions still need replayed. */ -int journal_test_revoke(journal_t *journal, +int journal_test_revoke(journal_t *journal, unsigned long blocknr, tid_t sequence) {
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c index f5169a9..e1b3c8a 100644 --- a/fs/jbd/transaction.c +++ b/fs/jbd/transaction.c
@@ -1,6 +1,6 @@ /* * linux/fs/transaction.c - * + * * Written by Stephen C. Tweedie <sct@redhat.com>, 1998 * * Copyright 1998 Red Hat corp --- All Rights Reserved @@ -10,7 +10,7 @@ * option, any later version, incorporated herein by reference. * * Generic filesystem transaction handling code; part of the ext2fs - * journaling system. + * journaling system. * * This file manages transactions (compound commits managed by the * journaling code) and handles (individual atomic operations by the @@ -74,7 +74,7 @@ * start_this_handle: Given a handle, deal with any locking or stalling * needed to make sure that there is enough journal space for the handle * to begin. Attach the handle to a transaction and set up the - * transaction's buffer credits. + * transaction's buffer credits. */ static int start_this_handle(journal_t *journal, handle_t *handle) @@ -117,7 +117,7 @@ if (is_journal_aborted(journal) || (journal->j_errno != 0 && !(journal->j_flags & JFS_ACK_ERR))) { spin_unlock(&journal->j_state_lock); - ret = -EROFS; + ret = -EROFS; goto out; } @@ -182,7 +182,7 @@ goto repeat; } - /* + /* * The commit code assumes that it can get enough log space * without forcing a checkpoint. This is *critical* for * correctness: a checkpoint of a buffer which is also @@ -191,7 +191,7 @@ * * We must therefore ensure the necessary space in the journal * *before* starting to dirty potentially checkpointed buffers - * in the new transaction. + * in the new transaction. * * The worst part is, any transaction currently committing can * reduce the free space arbitrarily. Be careful to account for @@ -246,13 +246,13 @@ } /** - * handle_t *journal_start() - Obtain a new handle. + * handle_t *journal_start() - Obtain a new handle. * @journal: Journal to start transaction on. * @nblocks: number of block buffer we might modify * * We make sure that the transaction can guarantee at least nblocks of * modified buffers in the log. We block until the log can guarantee - * that much space. + * that much space. * * This function is visible to journal users (like ext3fs), so is not * called with the journal already locked. @@ -292,11 +292,11 @@ * int journal_extend() - extend buffer credits. * @handle: handle to 'extend' * @nblocks: nr blocks to try to extend by. - * + * * Some transactions, such as large extends and truncates, can be done * atomically all at once or in several stages. The operation requests * a credit for a number of buffer modications in advance, but can - * extend its credit if it needs more. + * extend its credit if it needs more. * * journal_extend tries to give the running handle more buffer credits. * It does not guarantee that allocation - this is a best-effort only. @@ -363,7 +363,7 @@ * int journal_restart() - restart a handle . * @handle: handle to restart * @nblocks: nr credits requested - * + * * Restart a handle for a multi-transaction filesystem * operation. * @@ -462,7 +462,7 @@ /** * void journal_unlock_updates (journal_t* journal) - release barrier * @journal: Journal to release the barrier on. - * + * * Release a transaction barrier obtained with journal_lock_updates(). * * Should be called without the journal lock held. @@ -547,8 +547,8 @@ jbd_lock_bh_state(bh); /* We now hold the buffer lock so it is safe to query the buffer - * state. Is the buffer dirty? - * + * state. Is the buffer dirty? + * * If so, there are two possibilities. The buffer may be * non-journaled, and undergoing a quite legitimate writeback. * Otherwise, it is journaled, and we don't expect dirty buffers @@ -566,7 +566,7 @@ */ if (jh->b_transaction) { J_ASSERT_JH(jh, - jh->b_transaction == transaction || + jh->b_transaction == transaction || jh->b_transaction == journal->j_committing_transaction); if (jh->b_next_transaction) @@ -580,7 +580,7 @@ */ JBUFFER_TRACE(jh, "Unexpected dirty buffer"); jbd_unexpected_dirty_buffer(jh); - } + } unlock_buffer(bh); @@ -653,7 +653,7 @@ * buffer had better remain locked during the kmalloc, * but that should be true --- we hold the journal lock * still and the buffer is already on the BUF_JOURNAL - * list so won't be flushed. + * list so won't be flushed. * * Subtle point, though: if this is a get_undo_access, * then we will be relying on the frozen_data to contain @@ -765,8 +765,8 @@ * manually rather than reading off disk), then we need to keep the * buffer_head locked until it has been completely filled with new * data. In this case, we should be able to make the assertion that - * the bh is not already part of an existing transaction. - * + * the bh is not already part of an existing transaction. + * * The buffer should already be locked by the caller by this point. * There is no lock ranking violation: it was a newly created, * unlocked buffer beforehand. */ @@ -778,7 +778,7 @@ * * Call this if you create a new bh. */ -int journal_get_create_access(handle_t *handle, struct buffer_head *bh) +int journal_get_create_access(handle_t *handle, struct buffer_head *bh) { transaction_t *transaction = handle->h_transaction; journal_t *journal = transaction->t_journal; @@ -847,13 +847,13 @@ * do not reuse freed space until the deallocation has been committed, * since if we overwrote that space we would make the delete * un-rewindable in case of a crash. - * + * * To deal with that, journal_get_undo_access requests write access to a * buffer for parts of non-rewindable operations such as delete * operations on the bitmaps. The journaling code must keep a copy of * the buffer's contents prior to the undo_access call until such time * as we know that the buffer has definitely been committed to disk. - * + * * We never need to know which transaction the committed data is part * of, buffers touched here are guaranteed to be dirtied later and so * will be committed to a new transaction in due course, at which point @@ -911,13 +911,13 @@ return err; } -/** +/** * int journal_dirty_data() - mark a buffer as containing dirty data which * needs to be flushed before we can commit the - * current transaction. + * current transaction. * @handle: transaction * @bh: bufferhead to mark - * + * * The buffer is placed on the transaction's data list and is marked as * belonging to the transaction. * @@ -946,15 +946,15 @@ /* * What if the buffer is already part of a running transaction? - * + * * There are two cases: * 1) It is part of the current running transaction. Refile it, * just in case we have allocated it as metadata, deallocated - * it, then reallocated it as data. + * it, then reallocated it as data. * 2) It is part of the previous, still-committing transaction. * If all we want to do is to guarantee that the buffer will be * written to disk before this new transaction commits, then - * being sure that the *previous* transaction has this same + * being sure that the *previous* transaction has this same * property is sufficient for us! Just leave it on its old * transaction. * @@ -1076,18 +1076,18 @@ return 0; } -/** +/** * int journal_dirty_metadata() - mark a buffer as containing dirty metadata * @handle: transaction to add buffer to. - * @bh: buffer to mark - * + * @bh: buffer to mark + * * mark dirty metadata which needs to be journaled as part of the current * transaction. * * The buffer is placed on the transaction's metadata list and is marked - * as belonging to the transaction. + * as belonging to the transaction. * - * Returns error number or 0 on success. + * Returns error number or 0 on success. * * Special care needs to be taken if the buffer already belongs to the * current committing transaction (in which case we should have frozen @@ -1135,11 +1135,11 @@ set_buffer_jbddirty(bh); - /* + /* * Metadata already on the current transaction list doesn't * need to be filed. Metadata on another transaction's list must * be committing, and will be refiled once the commit completes: - * leave it alone for now. + * leave it alone for now. */ if (jh->b_transaction != transaction) { JBUFFER_TRACE(jh, "already on other transaction"); @@ -1165,7 +1165,7 @@ return 0; } -/* +/* * journal_release_buffer: undo a get_write_access without any buffer * updates, if the update decided in the end that it didn't need access. * @@ -1176,20 +1176,20 @@ BUFFER_TRACE(bh, "entry"); } -/** +/** * void journal_forget() - bforget() for potentially-journaled buffers. * @handle: transaction handle * @bh: bh to 'forget' * * We can only do the bforget if there are no commits pending against the * buffer. If the buffer is dirty in the current running transaction we - * can safely unlink it. + * can safely unlink it. * * bh may not be a journalled buffer at all - it may be a non-JBD * buffer which came off the hashtable. Check for this. * * Decrements bh->b_count by one. - * + * * Allow this call even if the handle has aborted --- it may be part of * the caller's cleanup after an abort. */ @@ -1237,7 +1237,7 @@ drop_reserve = 1; - /* + /* * We are no longer going to journal this buffer. * However, the commit of this transaction is still * important to the buffer: the delete that we are now @@ -1246,7 +1246,7 @@ * * So, if we have a checkpoint on the buffer, we should * now refile the buffer on our BJ_Forget list so that - * we know to remove the checkpoint after we commit. + * we know to remove the checkpoint after we commit. */ if (jh->b_cp_transaction) { @@ -1264,7 +1264,7 @@ } } } else if (jh->b_transaction) { - J_ASSERT_JH(jh, (jh->b_transaction == + J_ASSERT_JH(jh, (jh->b_transaction == journal->j_committing_transaction)); /* However, if the buffer is still owned by a prior * (committing) transaction, we can't drop it yet... */ @@ -1294,7 +1294,7 @@ /** * int journal_stop() - complete a transaction * @handle: tranaction to complete. - * + * * All done for a particular handle. * * There is not much action needed here. We just return any remaining @@ -1303,7 +1303,7 @@ * filesystem is marked for synchronous update. * * journal_stop itself will not usually return an error, but it may - * do so in unusual circumstances. In particular, expect it to + * do so in unusual circumstances. In particular, expect it to * return -EIO if a journal_abort has been executed since the * transaction began. */ @@ -1373,7 +1373,7 @@ if (handle->h_sync || transaction->t_outstanding_credits > journal->j_max_transaction_buffers || - time_after_eq(jiffies, transaction->t_expires)) { + time_after_eq(jiffies, transaction->t_expires)) { /* Do this even for aborted journals: an abort still * completes the commit thread, it just doesn't write * anything to disk. */ @@ -1388,7 +1388,7 @@ /* * Special case: JFS_SYNC synchronous updates require us - * to wait for the commit to complete. + * to wait for the commit to complete. */ if (handle->h_sync && !(current->flags & PF_MEMALLOC)) err = log_wait_commit(journal, tid); @@ -1439,7 +1439,7 @@ * jbd_lock_bh_state(jh2bh(jh)) is held. */ -static inline void +static inline void __blist_add_buffer(struct journal_head **list, struct journal_head *jh) { if (!*list) { @@ -1454,7 +1454,7 @@ } } -/* +/* * Remove a buffer from a transaction list, given the transaction's list * head pointer. * @@ -1475,7 +1475,7 @@ jh->b_tnext->b_tprev = jh->b_tprev; } -/* +/* * Remove a buffer from the appropriate transaction list. * * Note that this function can *change* the value of @@ -1595,17 +1595,17 @@ } -/** +/** * int journal_try_to_free_buffers() - try to free page buffers. * @journal: journal for operation * @page: to try and free * @unused_gfp_mask: unused * - * + * * For all the buffers on this page, * if they are fully written out ordered data, move them onto BUF_CLEAN * so try_to_free_buffers() can reap them. - * + * * This function returns non-zero if we wish try_to_free_buffers() * to be called. We do this if the page is releasable by try_to_free_buffers(). * We also do it if the page has locked or dirty buffers and the caller wants @@ -1629,7 +1629,7 @@ * cannot happen because we never reallocate freed data as metadata * while the data is part of a transaction. Yes? */ -int journal_try_to_free_buffers(journal_t *journal, +int journal_try_to_free_buffers(journal_t *journal, struct page *page, gfp_t unused_gfp_mask) { struct buffer_head *head; @@ -1697,7 +1697,7 @@ } /* - * journal_invalidatepage + * journal_invalidatepage * * This code is tricky. It has a number of cases to deal with. * @@ -1705,15 +1705,15 @@ * * i_size must be updated on disk before we start calling invalidatepage on the * data. - * + * * This is done in ext3 by defining an ext3_setattr method which * updates i_size before truncate gets going. By maintaining this * invariant, we can be sure that it is safe to throw away any buffers * attached to the current transaction: once the transaction commits, * we know that the data will not be needed. - * + * * Note however that we can *not* throw away data belonging to the - * previous, committing transaction! + * previous, committing transaction! * * Any disk blocks which *are* part of the previous, committing * transaction (and which therefore cannot be discarded immediately) are @@ -1732,7 +1732,7 @@ * don't make guarantees about the order in which data hits disk --- in * particular we don't guarantee that new dirty data is flushed before * transaction commit --- so it is always safe just to discard data - * immediately in that mode. --sct + * immediately in that mode. --sct */ /* @@ -1876,9 +1876,9 @@ return may_free; } -/** +/** * void journal_invalidatepage() - * @journal: journal to use for flush... + * @journal: journal to use for flush... * @page: page to flush * @offset: length of page to invalidate. * @@ -1886,7 +1886,7 @@ * */ void journal_invalidatepage(journal_t *journal, - struct page *page, + struct page *page, unsigned long offset) { struct buffer_head *head, *bh, *next; @@ -1908,7 +1908,7 @@ next = bh->b_this_page; if (offset <= curr_off) { - /* This block is wholly outside the truncation point */ + /* This block is wholly outside the truncation point */ lock_buffer(bh); may_free &= journal_unmap_buffer(journal, bh); unlock_buffer(bh); @@ -1924,8 +1924,8 @@ } } -/* - * File a buffer on the given transaction list. +/* + * File a buffer on the given transaction list. */ void __journal_file_buffer(struct journal_head *jh, transaction_t *transaction, int jlist) @@ -1948,7 +1948,7 @@ * with __jbd_unexpected_dirty_buffer()'s handling of dirty * state. */ - if (jlist == BJ_Metadata || jlist == BJ_Reserved || + if (jlist == BJ_Metadata || jlist == BJ_Reserved || jlist == BJ_Shadow || jlist == BJ_Forget) { if (test_clear_buffer_dirty(bh) || test_clear_buffer_jbddirty(bh)) @@ -2008,7 +2008,7 @@ jbd_unlock_bh_state(jh2bh(jh)); } -/* +/* * Remove a buffer from its current buffer list in preparation for * dropping it from its current transaction entirely. If the buffer has * already started to be used by a subsequent transaction, refile the @@ -2060,7 +2060,7 @@ * to the caller to remove the journal_head if necessary. For the * unlocked journal_refile_buffer call, the caller isn't going to be * doing anything else to the buffer so we need to do the cleanup - * ourselves to avoid a jh leak. + * ourselves to avoid a jh leak. * * *** The journal_head may be freed by this call! *** */
diff --git a/fs/jffs/inode-v23.c b/fs/jffs/inode-v23.c index 9306869..f5cf9c9 100644 --- a/fs/jffs/inode-v23.c +++ b/fs/jffs/inode-v23.c
@@ -364,12 +364,11 @@ inode->i_ctime.tv_nsec = 0; inode->i_mtime.tv_nsec = 0; inode->i_atime.tv_nsec = 0; - inode->i_blksize = PAGE_SIZE; inode->i_blocks = (inode->i_size + 511) >> 9; f = jffs_find_file(c, raw_inode->ino); - inode->u.generic_ip = (void *)f; + inode->i_private = (void *)f; insert_inode_hash(inode); return inode; @@ -442,7 +441,7 @@ }); result = -ENOTDIR; - if (!(old_dir_f = (struct jffs_file *)old_dir->u.generic_ip)) { + if (!(old_dir_f = old_dir->i_private)) { D(printk("jffs_rename(): Old dir invalid.\n")); goto jffs_rename_end; } @@ -456,7 +455,7 @@ /* Find the new directory. */ result = -ENOTDIR; - if (!(new_dir_f = (struct jffs_file *)new_dir->u.generic_ip)) { + if (!(new_dir_f = new_dir->i_private)) { D(printk("jffs_rename(): New dir invalid.\n")); goto jffs_rename_end; } @@ -593,7 +592,7 @@ } else { ddino = ((struct jffs_file *) - inode->u.generic_ip)->pino; + inode->i_private)->pino; } D3(printk("jffs_readdir(): \"..\" %u\n", ddino)); if (filldir(dirent, "..", 2, filp->f_pos, ddino, DT_DIR) < 0) { @@ -604,7 +603,7 @@ } filp->f_pos++; } - f = ((struct jffs_file *)inode->u.generic_ip)->children; + f = ((struct jffs_file *)inode->i_private)->children; j = 2; while(f && (f->deleted || j++ < filp->f_pos )) { @@ -652,7 +651,7 @@ lock_kernel(); D3({ - char *s = (char *)kmalloc(len + 1, GFP_KERNEL); + char *s = kmalloc(len + 1, GFP_KERNEL); memcpy(s, name, len); s[len] = '\0'; printk("jffs_lookup(): dir: 0x%p, name: \"%s\"\n", dir, s); @@ -668,7 +667,7 @@ } r = -EACCES; - if (!(d = (struct jffs_file *)dir->u.generic_ip)) { + if (!(d = (struct jffs_file *)dir->i_private)) { D(printk("jffs_lookup(): No such inode! (%lu)\n", dir->i_ino)); goto jffs_lookup_end; @@ -739,7 +738,7 @@ unsigned long read_len; int result; struct inode *inode = (struct inode*)page->mapping->host; - struct jffs_file *f = (struct jffs_file *)inode->u.generic_ip; + struct jffs_file *f = (struct jffs_file *)inode->i_private; struct jffs_control *c = (struct jffs_control *)inode->i_sb->s_fs_info; int r; loff_t offset; @@ -828,7 +827,7 @@ }); lock_kernel(); - dir_f = (struct jffs_file *)dir->u.generic_ip; + dir_f = dir->i_private; ASSERT(if (!dir_f) { printk(KERN_ERR "jffs_mkdir(): No reference to a " @@ -972,7 +971,7 @@ kfree(_name); }); - dir_f = (struct jffs_file *) dir->u.generic_ip; + dir_f = dir->i_private; c = dir_f->c; result = -ENOENT; @@ -1082,7 +1081,7 @@ if (!old_valid_dev(rdev)) return -EINVAL; lock_kernel(); - dir_f = (struct jffs_file *)dir->u.generic_ip; + dir_f = dir->i_private; c = dir_f->c; D3(printk (KERN_NOTICE "mknod(): down biglock\n")); @@ -1173,8 +1172,8 @@ lock_kernel(); D1({ int len = dentry->d_name.len; - char *_name = (char *)kmalloc(len + 1, GFP_KERNEL); - char *_symname = (char *)kmalloc(symname_len + 1, GFP_KERNEL); + char *_name = kmalloc(len + 1, GFP_KERNEL); + char *_symname = kmalloc(symname_len + 1, GFP_KERNEL); memcpy(_name, dentry->d_name.name, len); _name[len] = '\0'; memcpy(_symname, symname, symname_len); @@ -1186,7 +1185,7 @@ kfree(_symname); }); - dir_f = (struct jffs_file *)dir->u.generic_ip; + dir_f = dir->i_private; ASSERT(if (!dir_f) { printk(KERN_ERR "jffs_symlink(): No reference to a " "jffs_file struct in inode.\n"); @@ -1282,14 +1281,14 @@ lock_kernel(); D1({ int len = dentry->d_name.len; - char *s = (char *)kmalloc(len + 1, GFP_KERNEL); + char *s = kmalloc(len + 1, GFP_KERNEL); memcpy(s, dentry->d_name.name, len); s[len] = '\0'; printk("jffs_create(): dir: 0x%p, name: \"%s\"\n", dir, s); kfree(s); }); - dir_f = (struct jffs_file *)dir->u.generic_ip; + dir_f = dir->i_private; ASSERT(if (!dir_f) { printk(KERN_ERR "jffs_create(): No reference to a " "jffs_file struct in inode.\n"); @@ -1403,9 +1402,9 @@ goto out_isem; } - if (!(f = (struct jffs_file *)inode->u.generic_ip)) { - D(printk("jffs_file_write(): inode->u.generic_ip = 0x%p\n", - inode->u.generic_ip)); + if (!(f = inode->i_private)) { + D(printk("jffs_file_write(): inode->i_private = 0x%p\n", + inode->i_private)); goto out_isem; } @@ -1693,7 +1692,7 @@ mutex_unlock(&c->fmc->biglock); return; } - inode->u.generic_ip = (void *)f; + inode->i_private = f; inode->i_mode = f->mode; inode->i_nlink = f->nlink; inode->i_uid = f->uid; @@ -1706,7 +1705,6 @@ inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec = 0; - inode->i_blksize = PAGE_SIZE; inode->i_blocks = (inode->i_size + 511) >> 9; if (S_ISREG(inode->i_mode)) { inode->i_op = &jffs_file_inode_operations; @@ -1748,7 +1746,7 @@ lock_kernel(); inode->i_size = 0; inode->i_blocks = 0; - inode->u.generic_ip = NULL; + inode->i_private = NULL; clear_inode(inode); if (inode->i_nlink == 0) { c = (struct jffs_control *) inode->i_sb->s_fs_info;
diff --git a/fs/jffs/intrep.c b/fs/jffs/intrep.c index 9000f1e..4a543e1 100644 --- a/fs/jffs/intrep.c +++ b/fs/jffs/intrep.c
@@ -488,13 +488,11 @@ { struct jffs_file *f; - if (!(f = (struct jffs_file *)kmalloc(sizeof(struct jffs_file), - GFP_KERNEL))) { + if (!(f = kzalloc(sizeof(*f), GFP_KERNEL))) { D(printk("jffs_create_file(): Failed!\n")); return NULL; } no_jffs_file++; - memset(f, 0, sizeof(struct jffs_file)); f->ino = raw_inode->ino; f->pino = raw_inode->pino; f->nlink = raw_inode->nlink; @@ -516,7 +514,7 @@ D2(printk("jffs_create_control()\n")); - if (!(c = (struct jffs_control *)kmalloc(s, GFP_KERNEL))) { + if (!(c = kmalloc(s, GFP_KERNEL))) { goto fail_control; } DJM(no_jffs_control++); @@ -524,7 +522,7 @@ c->gc_task = NULL; c->hash_len = JFFS_HASH_SIZE; s = sizeof(struct list_head) * c->hash_len; - if (!(c->hash = (struct list_head *)kmalloc(s, GFP_KERNEL))) { + if (!(c->hash = kmalloc(s, GFP_KERNEL))) { goto fail_hash; } DJM(no_hash++); @@ -593,8 +591,7 @@ D2(printk("jffs_add_virtual_root(): " "Creating a virtual root directory.\n")); - if (!(root = (struct jffs_file *)kmalloc(sizeof(struct jffs_file), - GFP_KERNEL))) { + if (!(root = kmalloc(sizeof(struct jffs_file), GFP_KERNEL))) { return -ENOMEM; } no_jffs_file++;
diff --git a/fs/jffs/jffs_fm.c b/fs/jffs/jffs_fm.c index 7d8ca1a..29b68d9 100644 --- a/fs/jffs/jffs_fm.c +++ b/fs/jffs/jffs_fm.c
@@ -94,8 +94,7 @@ struct mtd_info *mtd; D3(printk("jffs_build_begin()\n")); - fmc = (struct jffs_fmcontrol *)kmalloc(sizeof(struct jffs_fmcontrol), - GFP_KERNEL); + fmc = kmalloc(sizeof(*fmc), GFP_KERNEL); if (!fmc) { D(printk("jffs_build_begin(): Allocation of " "struct jffs_fmcontrol failed!\n")); @@ -486,8 +485,7 @@ D3(printk("jffs_add_node(): ino = %u\n", node->ino)); - ref = (struct jffs_node_ref *)kmalloc(sizeof(struct jffs_node_ref), - GFP_KERNEL); + ref = kmalloc(sizeof(*ref), GFP_KERNEL); if (!ref) return -ENOMEM;
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index 4780f82..72d9909d 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c
@@ -263,7 +263,6 @@ inode->i_nlink = f->inocache->nlink; - inode->i_blksize = PAGE_SIZE; inode->i_blocks = (inode->i_size + 511) >> 9; switch (inode->i_mode & S_IFMT) { @@ -449,7 +448,6 @@ inode->i_atime = inode->i_ctime = inode->i_mtime = CURRENT_TIME_SEC; ri->atime = ri->mtime = ri->ctime = cpu_to_je32(I_SEC(inode->i_mtime)); - inode->i_blksize = PAGE_SIZE; inode->i_blocks = 0; inode->i_size = 0;
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c index 68e3953..6de3745 100644 --- a/fs/jffs2/super.c +++ b/fs/jffs2/super.c
@@ -119,10 +119,9 @@ struct jffs2_sb_info *c; int ret; - c = kmalloc(sizeof(*c), GFP_KERNEL); + c = kzalloc(sizeof(*c), GFP_KERNEL); if (!c) return -ENOMEM; - memset(c, 0, sizeof(*c)); c->mtd = mtd; sb = sget(fs_type, jffs2_sb_compare, jffs2_sb_set, c);
diff --git a/fs/jfs/jfs_extent.c b/fs/jfs/jfs_extent.c index 4d52593..4c74f09 100644 --- a/fs/jfs/jfs_extent.c +++ b/fs/jfs/jfs_extent.c
@@ -468,7 +468,7 @@ int extFill(struct inode *ip, xad_t * xp) { int rc, nbperpage = JFS_SBI(ip->i_sb)->nbperpage; - s64 blkno = offsetXAD(xp) >> ip->i_blksize; + s64 blkno = offsetXAD(xp) >> ip->i_blkbits; // assert(ISSPARSE(ip));
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c index ccbe60a..369d7f3 100644 --- a/fs/jfs/jfs_imap.c +++ b/fs/jfs/jfs_imap.c
@@ -3115,7 +3115,6 @@ ip->i_mtime.tv_nsec = le32_to_cpu(dip->di_mtime.tv_nsec); ip->i_ctime.tv_sec = le32_to_cpu(dip->di_ctime.tv_sec); ip->i_ctime.tv_nsec = le32_to_cpu(dip->di_ctime.tv_nsec); - ip->i_blksize = ip->i_sb->s_blocksize; ip->i_blocks = LBLK2PBLK(ip->i_sb, le64_to_cpu(dip->di_nblocks)); ip->i_generation = le32_to_cpu(dip->di_gen);
diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c index 495df40..bffaca9 100644 --- a/fs/jfs/jfs_inode.c +++ b/fs/jfs/jfs_inode.c
@@ -115,7 +115,6 @@ } jfs_inode->mode2 |= mode; - inode->i_blksize = sb->s_blocksize; inode->i_blocks = 0; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; jfs_inode->otime = inode->i_ctime.tv_sec;
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c index e1e0a6e..f5afc12 100644 --- a/fs/jfs/jfs_metapage.c +++ b/fs/jfs/jfs_metapage.c
@@ -257,7 +257,7 @@ int rc = 0; int xflag; s64 xaddr; - sector_t file_blocks = (inode->i_size + inode->i_blksize - 1) >> + sector_t file_blocks = (inode->i_size + inode->i_sb->s_blocksize - 1) >> inode->i_blkbits; if (lblock >= file_blocks)
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c index efbb586..3856efc 100644 --- a/fs/jfs/jfs_txnmgr.c +++ b/fs/jfs/jfs_txnmgr.c
@@ -282,7 +282,7 @@ TxLockVHWM = (nTxLock * 8) / 10; size = sizeof(struct tblock) * nTxBlock; - TxBlock = (struct tblock *) vmalloc(size); + TxBlock = vmalloc(size); if (TxBlock == NULL) return -ENOMEM; @@ -307,7 +307,7 @@ * tlock id = 0 is reserved. */ size = sizeof(struct tlock) * nTxLock; - TxLock = (struct tlock *) vmalloc(size); + TxLock = vmalloc(size); if (TxLock == NULL) { vfree(TxBlock); return -ENOMEM;
diff --git a/fs/libfs.c b/fs/libfs.c index ac02ea6..8db5afb 100644 --- a/fs/libfs.c +++ b/fs/libfs.c
@@ -383,7 +383,6 @@ return -ENOMEM; inode->i_mode = S_IFDIR | 0755; inode->i_uid = inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; inode->i_op = &simple_dir_inode_operations; @@ -405,7 +404,6 @@ goto out; inode->i_mode = S_IFREG | files->mode; inode->i_uid = inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; inode->i_fop = files->ops; @@ -547,7 +545,7 @@ attr->get = get; attr->set = set; - attr->data = inode->u.generic_ip; + attr->data = inode->i_private; attr->fmt = fmt; mutex_init(&attr->mutex);
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c index 52774fe..f95cc3f 100644 --- a/fs/lockd/clntlock.c +++ b/fs/lockd/clntlock.c
@@ -160,7 +160,7 @@ */ list_splice_init(&host->h_granted, &host->h_reclaim); - dprintk("NLM: reclaiming locks for host %s", host->h_name); + dprintk("NLM: reclaiming locks for host %s\n", host->h_name); } static void nlmclnt_finish_reclaim(struct nlm_host *host)
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c index 50dbb67..271e216 100644 --- a/fs/lockd/clntproc.c +++ b/fs/lockd/clntproc.c
@@ -100,7 +100,7 @@ res = __nlm_find_lockowner(host, owner); if (res == NULL) { spin_unlock(&host->h_lock); - new = (struct nlm_lockowner *)kmalloc(sizeof(*new), GFP_KERNEL); + new = kmalloc(sizeof(*new), GFP_KERNEL); spin_lock(&host->h_lock); res = __nlm_find_lockowner(host, owner); if (res == NULL && new != NULL) {
diff --git a/fs/lockd/host.c b/fs/lockd/host.c index 703fb03..a0d0b58 100644 --- a/fs/lockd/host.c +++ b/fs/lockd/host.c
@@ -99,9 +99,9 @@ /* Ooops, no host found, create it */ dprintk("lockd: creating host entry\n"); - if (!(host = (struct nlm_host *) kmalloc(sizeof(*host), GFP_KERNEL))) + host = kzalloc(sizeof(*host), GFP_KERNEL); + if (!host) goto nohost; - memset(host, 0, sizeof(*host)); addr = sin->sin_addr.s_addr; sprintf(host->h_name, "%u.%u.%u.%u", NIPQUAD(addr));
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c index 01b4db9..a92dd98f 100644 --- a/fs/lockd/svcsubs.c +++ b/fs/lockd/svcsubs.c
@@ -100,11 +100,10 @@ nlm_debug_print_fh("creating file for", f); nfserr = nlm_lck_denied_nolocks; - file = (struct nlm_file *) kmalloc(sizeof(*file), GFP_KERNEL); + file = kzalloc(sizeof(*file), GFP_KERNEL); if (!file) goto out_unlock; - memset(file, 0, sizeof(*file)); memcpy(&file->f_handle, f, sizeof(struct nfs_fh)); file->f_hash = hash; init_MUTEX(&file->f_sema);
diff --git a/fs/minix/bitmap.c b/fs/minix/bitmap.c index 4a6abc4..df6b107 100644 --- a/fs/minix/bitmap.c +++ b/fs/minix/bitmap.c
@@ -254,7 +254,7 @@ inode->i_gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid; inode->i_ino = j; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; memset(&minix_i(inode)->u, 0, sizeof(minix_i(inode)->u)); insert_inode_hash(inode); mark_inode_dirty(inode);
diff --git a/fs/minix/inode.c b/fs/minix/inode.c index 330ff9f..c11a4b9 100644 --- a/fs/minix/inode.c +++ b/fs/minix/inode.c
@@ -90,8 +90,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(minix_inode_cachep)) - printk(KERN_INFO "minix_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(minix_inode_cachep); } static struct super_operations minix_sops = { @@ -145,11 +144,10 @@ struct inode *root_inode; struct minix_sb_info *sbi; - sbi = kmalloc(sizeof(struct minix_sb_info), GFP_KERNEL); + sbi = kzalloc(sizeof(struct minix_sb_info), GFP_KERNEL); if (!sbi) return -ENOMEM; s->s_fs_info = sbi; - memset(sbi, 0, sizeof(struct minix_sb_info)); /* N.B. These should be compile-time tests. Unfortunately that is impossible. */ @@ -207,10 +205,9 @@ if (sbi->s_imap_blocks == 0 || sbi->s_zmap_blocks == 0) goto out_illegal_sb; i = (sbi->s_imap_blocks + sbi->s_zmap_blocks) * sizeof(bh); - map = kmalloc(i, GFP_KERNEL); + map = kzalloc(i, GFP_KERNEL); if (!map) goto out_no_map; - memset(map, 0, i); sbi->s_imap = &map[0]; sbi->s_zmap = &map[sbi->s_imap_blocks]; @@ -399,7 +396,7 @@ inode->i_mtime.tv_nsec = 0; inode->i_atime.tv_nsec = 0; inode->i_ctime.tv_nsec = 0; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; for (i = 0; i < 9; i++) minix_inode->u.i1_data[i] = raw_inode->i_zone[i]; minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0])); @@ -432,7 +429,7 @@ inode->i_mtime.tv_nsec = 0; inode->i_atime.tv_nsec = 0; inode->i_ctime.tv_nsec = 0; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; for (i = 0; i < 10; i++) minix_inode->u.i2_data[i] = raw_inode->i_zone[i]; minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0]));
diff --git a/fs/namei.c b/fs/namei.c index 6b591c0..808e4ea 100644 --- a/fs/namei.c +++ b/fs/namei.c
@@ -372,6 +372,30 @@ fput(nd->intent.open.file); } +static inline struct dentry * +do_revalidate(struct dentry *dentry, struct nameidata *nd) +{ + int status = dentry->d_op->d_revalidate(dentry, nd); + if (unlikely(status <= 0)) { + /* + * The dentry failed validation. + * If d_revalidate returned 0 attempt to invalidate + * the dentry otherwise d_revalidate is asking us + * to return a fail status. + */ + if (!status) { + if (!d_invalidate(dentry)) { + dput(dentry); + dentry = NULL; + } + } else { + dput(dentry); + dentry = ERR_PTR(status); + } + } + return dentry; +} + /* * Internal lookup() using the new generic dcache. * SMP-safe @@ -386,12 +410,9 @@ if (!dentry) dentry = d_lookup(parent, name); - if (dentry && dentry->d_op && dentry->d_op->d_revalidate) { - if (!dentry->d_op->d_revalidate(dentry, nd) && !d_invalidate(dentry)) { - dput(dentry); - dentry = NULL; - } - } + if (dentry && dentry->d_op && dentry->d_op->d_revalidate) + dentry = do_revalidate(dentry, nd); + return dentry; } @@ -484,10 +505,9 @@ */ mutex_unlock(&dir->i_mutex); if (result->d_op && result->d_op->d_revalidate) { - if (!result->d_op->d_revalidate(result, nd) && !d_invalidate(result)) { - dput(result); + result = do_revalidate(result, nd); + if (!result) result = ERR_PTR(-ENOENT); - } } return result; } @@ -767,12 +787,12 @@ goto done; need_revalidate: - if (dentry->d_op->d_revalidate(dentry, nd)) - goto done; - if (d_invalidate(dentry)) - goto done; - dput(dentry); - goto need_lookup; + dentry = do_revalidate(dentry, nd); + if (!dentry) + goto need_lookup; + if (IS_ERR(dentry)) + goto fail; + goto done; fail: return PTR_ERR(dentry);
diff --git a/fs/namespace.c b/fs/namespace.c index fa7ed6a9f..36d1808 100644 --- a/fs/namespace.c +++ b/fs/namespace.c
@@ -17,6 +17,7 @@ #include <linux/acct.h> #include <linux/capability.h> #include <linux/module.h> +#include <linux/sysfs.h> #include <linux/seq_file.h> #include <linux/namespace.h> #include <linux/namei.h> @@ -28,15 +29,6 @@ extern int __init init_rootfs(void); -#ifdef CONFIG_SYSFS -extern int __init sysfs_init(void); -#else -static inline int sysfs_init(void) -{ - return 0; -} -#endif - /* spinlock for vfsmount related operations, inplace of dcache_lock */ __cacheline_aligned_in_smp DEFINE_SPINLOCK(vfsmount_lock);
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c index 1ddf77b..42e3bef 100644 --- a/fs/ncpfs/inode.c +++ b/fs/ncpfs/inode.c
@@ -81,8 +81,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(ncp_inode_cachep)) - printk(KERN_INFO "ncp_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(ncp_inode_cachep); } static int ncp_remount(struct super_block *sb, int *flags, char* data) @@ -224,7 +223,6 @@ inode->i_nlink = 1; inode->i_uid = server->m.uid; inode->i_gid = server->m.gid; - inode->i_blksize = NCP_BLOCK_SIZE; ncp_update_dates(inode, &nwinfo->i); ncp_update_inode(inode, nwinfo); @@ -411,11 +409,10 @@ #endif struct ncp_entry_info finfo; - server = kmalloc(sizeof(struct ncp_server), GFP_KERNEL); + server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL); if (!server) return -ENOMEM; sb->s_fs_info = server; - memset(server, 0, sizeof(struct ncp_server)); error = -EFAULT; if (raw_data == NULL)
diff --git a/fs/ncpfs/symlink.c b/fs/ncpfs/symlink.c index ca92c24..e3d26c1 100644 --- a/fs/ncpfs/symlink.c +++ b/fs/ncpfs/symlink.c
@@ -48,7 +48,7 @@ char *buf = kmap(page); error = -ENOMEM; - rawlink=(char *)kmalloc(NCP_MAX_SYMLINK_SIZE, GFP_KERNEL); + rawlink = kmalloc(NCP_MAX_SYMLINK_SIZE, GFP_KERNEL); if (!rawlink) goto fail; @@ -126,7 +126,7 @@ /* EPERM is returned by VFS if symlink procedure does not exist */ return -EPERM; - rawlink=(char *)kmalloc(NCP_MAX_SYMLINK_SIZE, GFP_KERNEL); + rawlink = kmalloc(NCP_MAX_SYMLINK_SIZE, GFP_KERNEL); if (!rawlink) return -ENOMEM;
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index 5713367..841c99a 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c
@@ -20,11 +20,6 @@ #include "delegation.h" #include "internal.h" -static struct nfs_delegation *nfs_alloc_delegation(void) -{ - return (struct nfs_delegation *)kmalloc(sizeof(struct nfs_delegation), GFP_KERNEL); -} - static void nfs_free_delegation(struct nfs_delegation *delegation) { if (delegation->cred) @@ -124,7 +119,7 @@ if ((nfsi->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATTR))) __nfs_revalidate_inode(NFS_SERVER(inode), inode); - delegation = nfs_alloc_delegation(); + delegation = kmalloc(sizeof(*delegation), GFP_KERNEL); if (delegation == NULL) return -ENOMEM; memcpy(delegation->stateid.data, res->delegation.data,
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 76ca1cb..377839b 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c
@@ -855,6 +855,5 @@ */ void nfs_destroy_directcache(void) { - if (kmem_cache_destroy(nfs_direct_cachep)) - printk(KERN_INFO "nfs_direct_cache: not all structures were freed\n"); + kmem_cache_destroy(nfs_direct_cachep); }
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index e8c143d..bc9376c 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c
@@ -277,10 +277,8 @@ * report the blocks in 512byte units */ inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used); - inode->i_blksize = inode->i_sb->s_blocksize; } else { inode->i_blocks = fattr->du.nfs2.blocks; - inode->i_blksize = fattr->du.nfs2.blocksize; } nfsi->attrtimeo = NFS_MINATTRTIMEO(inode); nfsi->attrtimeo_timestamp = jiffies; @@ -443,7 +441,7 @@ { struct nfs_open_context *ctx; - ctx = (struct nfs_open_context *)kmalloc(sizeof(*ctx), GFP_KERNEL); + ctx = kmalloc(sizeof(*ctx), GFP_KERNEL); if (ctx != NULL) { atomic_set(&ctx->count, 1); ctx->dentry = dget(dentry); @@ -969,10 +967,8 @@ * report the blocks in 512byte units */ inode->i_blocks = nfs_calc_block_size(fattr->du.nfs3.used); - inode->i_blksize = inode->i_sb->s_blocksize; } else { inode->i_blocks = fattr->du.nfs2.blocks; - inode->i_blksize = fattr->du.nfs2.blocksize; } if ((fattr->valid & NFS_ATTR_FATTR_V4) != 0 && @@ -1134,8 +1130,7 @@ static void nfs_destroy_inodecache(void) { - if (kmem_cache_destroy(nfs_inode_cachep)) - printk(KERN_INFO "nfs_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(nfs_inode_cachep); } /*
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c index 77b0068..6040864 100644 --- a/fs/nfs/namespace.c +++ b/fs/nfs/namespace.c
@@ -26,6 +26,11 @@ static DECLARE_WORK(nfs_automount_task, nfs_expire_automounts, &nfs_automount_list); int nfs_mountpoint_expiry_timeout = 500 * HZ; +static struct vfsmount *nfs_do_submount(const struct vfsmount *mnt_parent, + const struct dentry *dentry, + struct nfs_fh *fh, + struct nfs_fattr *fattr); + /* * nfs_path - reconstruct the path given an arbitrary dentry * @base - arbitrary string to prepend to the path @@ -209,9 +214,10 @@ * @fattr - attributes for new root inode * */ -struct vfsmount *nfs_do_submount(const struct vfsmount *mnt_parent, - const struct dentry *dentry, struct nfs_fh *fh, - struct nfs_fattr *fattr) +static struct vfsmount *nfs_do_submount(const struct vfsmount *mnt_parent, + const struct dentry *dentry, + struct nfs_fh *fh, + struct nfs_fattr *fattr) { struct nfs_clone_mount mountdata = { .sb = mnt_parent->mnt_sb,
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c index f8688ea..3b234d4 100644 --- a/fs/nfs/nfs3proc.c +++ b/fs/nfs/nfs3proc.c
@@ -449,7 +449,7 @@ struct nfs_fattr res; } *ptr; - ptr = (struct unlinkxdr *)kmalloc(sizeof(*ptr), GFP_KERNEL); + ptr = kmalloc(sizeof(*ptr), GFP_KERNEL); if (!ptr) return -ENOMEM; ptr->arg.fh = NFS_FH(dir->d_inode);
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index 36e902a..829af32 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c
@@ -392,7 +392,6 @@ void nfs_destroy_nfspagecache(void) { - if (kmem_cache_destroy(nfs_page_cachep)) - printk(KERN_INFO "nfs_page: not all structures were freed\n"); + kmem_cache_destroy(nfs_page_cachep); }
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c index 630e506..4529cc4 100644 --- a/fs/nfs/proc.c +++ b/fs/nfs/proc.c
@@ -352,7 +352,7 @@ { struct nfs_diropargs *arg; - arg = (struct nfs_diropargs *)kmalloc(sizeof(*arg), GFP_KERNEL); + arg = kmalloc(sizeof(*arg), GFP_KERNEL); if (!arg) return -ENOMEM; arg->fh = NFS_FH(dir->d_inode);
diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 69f1549..c2e49c3 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c
@@ -737,6 +737,5 @@ void nfs_destroy_readpagecache(void) { mempool_destroy(nfs_rdata_mempool); - if (kmem_cache_destroy(nfs_rdata_cachep)) - printk(KERN_INFO "nfs_read_data: not all structures were freed\n"); + kmem_cache_destroy(nfs_rdata_cachep); }
diff --git a/fs/nfs/write.c b/fs/nfs/write.c index c12effb..b674462 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c
@@ -1565,7 +1565,6 @@ { mempool_destroy(nfs_commit_mempool); mempool_destroy(nfs_wdata_mempool); - if (kmem_cache_destroy(nfs_wdata_cachep)) - printk(KERN_INFO "nfs_write_data: not all structures were freed\n"); + kmem_cache_destroy(nfs_wdata_cachep); }
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c index bea6b94..b1902eb 100644 --- a/fs/nfsd/nfs4idmap.c +++ b/fs/nfsd/nfs4idmap.c
@@ -573,10 +573,9 @@ struct idmap_defer_req *mdr; int ret; - mdr = kmalloc(sizeof(*mdr), GFP_KERNEL); + mdr = kzalloc(sizeof(*mdr), GFP_KERNEL); if (!mdr) return -ENOMEM; - memset(mdr, 0, sizeof(*mdr)); atomic_set(&mdr->count, 1); init_waitqueue_head(&mdr->waitq); mdr->req.defer = idmap_defer;
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 9daa0b9..ebcf226 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c
@@ -339,8 +339,7 @@ { struct nfs4_client *clp; - if ((clp = kmalloc(sizeof(struct nfs4_client), GFP_KERNEL))!= NULL) { - memset(clp, 0, sizeof(*clp)); + if ((clp = kzalloc(sizeof(struct nfs4_client), GFP_KERNEL))!= NULL) { if ((clp->cl_name.data = kmalloc(name.len, GFP_KERNEL)) != NULL) { memcpy(clp->cl_name.data, name.data, name.len); clp->cl_name.len = name.len; @@ -1006,13 +1005,10 @@ static void nfsd4_free_slab(kmem_cache_t **slab) { - int status; - if (*slab == NULL) return; - status = kmem_cache_destroy(*slab); + kmem_cache_destroy(*slab); *slab = NULL; - WARN_ON(status); } static void
diff --git a/fs/ntfs/dir.c b/fs/ntfs/dir.c index d1e2c6f..85c36b8 100644 --- a/fs/ntfs/dir.c +++ b/fs/ntfs/dir.c
@@ -1149,8 +1149,7 @@ * Allocate a buffer to store the current name being processed * converted to format determined by current NLS. */ - name = (u8*)kmalloc(NTFS_MAX_NAME_LEN * NLS_MAX_CHARSET_SIZE + 1, - GFP_NOFS); + name = kmalloc(NTFS_MAX_NAME_LEN * NLS_MAX_CHARSET_SIZE + 1, GFP_NOFS); if (unlikely(!name)) { err = -ENOMEM; goto err_out; @@ -1191,7 +1190,7 @@ * map the mft record without deadlocking. */ rc = le32_to_cpu(ctx->attr->data.resident.value_length); - ir = (INDEX_ROOT*)kmalloc(rc, GFP_NOFS); + ir = kmalloc(rc, GFP_NOFS); if (unlikely(!ir)) { err = -ENOMEM; goto err_out;
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c index d313f35..933dbd8 100644 --- a/fs/ntfs/inode.c +++ b/fs/ntfs/inode.c
@@ -137,7 +137,7 @@ BUG_ON(!na->name); i = na->name_len * sizeof(ntfschar); - ni->name = (ntfschar*)kmalloc(i + sizeof(ntfschar), GFP_ATOMIC); + ni->name = kmalloc(i + sizeof(ntfschar), GFP_ATOMIC); if (!ni->name) return -ENOMEM; memcpy(ni->name, na->name, i); @@ -556,8 +556,6 @@ /* Setup the generic vfs inode parts now. */ - /* This is the optimal IO size (for stat), not the fs block size. */ - vi->i_blksize = PAGE_CACHE_SIZE; /* * This is for checking whether an inode has changed w.r.t. a file so * that the file can be updated if necessary (compare with f_version). @@ -1234,7 +1232,6 @@ base_ni = NTFS_I(base_vi); /* Just mirror the values from the base inode. */ - vi->i_blksize = base_vi->i_blksize; vi->i_version = base_vi->i_version; vi->i_uid = base_vi->i_uid; vi->i_gid = base_vi->i_gid; @@ -1504,7 +1501,6 @@ ni = NTFS_I(vi); base_ni = NTFS_I(base_vi); /* Just mirror the values from the base inode. */ - vi->i_blksize = base_vi->i_blksize; vi->i_version = base_vi->i_version; vi->i_uid = base_vi->i_uid; vi->i_gid = base_vi->i_gid;
diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c index 2438c00..584260f 100644 --- a/fs/ntfs/mft.c +++ b/fs/ntfs/mft.c
@@ -331,7 +331,7 @@ ntfs_inode **tmp; int new_size = (base_ni->nr_extents + 4) * sizeof(ntfs_inode *); - tmp = (ntfs_inode **)kmalloc(new_size, GFP_NOFS); + tmp = kmalloc(new_size, GFP_NOFS); if (unlikely(!tmp)) { ntfs_error(base_ni->vol->sb, "Failed to allocate " "internal buffer."); @@ -2638,11 +2638,6 @@ } vi->i_ino = bit; /* - * This is the optimal IO size (for stat), not the fs block - * size. - */ - vi->i_blksize = PAGE_CACHE_SIZE; - /* * This is for checking whether an inode has changed w.r.t. a * file so that the file can be updated if necessary (compare * with f_version). @@ -2893,7 +2888,7 @@ if (!(base_ni->nr_extents & 3)) { int new_size = (base_ni->nr_extents + 4) * sizeof(ntfs_inode*); - extent_nis = (ntfs_inode**)kmalloc(new_size, GFP_NOFS); + extent_nis = kmalloc(new_size, GFP_NOFS); if (unlikely(!extent_nis)) { ntfs_error(vol->sb, "Failed to allocate internal " "buffer during rollback.%s", es);
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c index 74e0ee8..6b2712f 100644 --- a/fs/ntfs/super.c +++ b/fs/ntfs/super.c
@@ -3248,32 +3248,14 @@ static void __exit exit_ntfs_fs(void) { - int err = 0; - ntfs_debug("Unregistering NTFS driver."); unregister_filesystem(&ntfs_fs_type); - - if (kmem_cache_destroy(ntfs_big_inode_cache) && (err = 1)) - printk(KERN_CRIT "NTFS: Failed to destory %s.\n", - ntfs_big_inode_cache_name); - if (kmem_cache_destroy(ntfs_inode_cache) && (err = 1)) - printk(KERN_CRIT "NTFS: Failed to destory %s.\n", - ntfs_inode_cache_name); - if (kmem_cache_destroy(ntfs_name_cache) && (err = 1)) - printk(KERN_CRIT "NTFS: Failed to destory %s.\n", - ntfs_name_cache_name); - if (kmem_cache_destroy(ntfs_attr_ctx_cache) && (err = 1)) - printk(KERN_CRIT "NTFS: Failed to destory %s.\n", - ntfs_attr_ctx_cache_name); - if (kmem_cache_destroy(ntfs_index_ctx_cache) && (err = 1)) - printk(KERN_CRIT "NTFS: Failed to destory %s.\n", - ntfs_index_ctx_cache_name); - if (err) - printk(KERN_CRIT "NTFS: This causes memory to leak! There is " - "probably a BUG in the driver! Please report " - "you saw this message to " - "linux-ntfs-dev@lists.sourceforge.net\n"); + kmem_cache_destroy(ntfs_big_inode_cache); + kmem_cache_destroy(ntfs_inode_cache); + kmem_cache_destroy(ntfs_name_cache); + kmem_cache_destroy(ntfs_attr_ctx_cache); + kmem_cache_destroy(ntfs_index_ctx_cache); /* Unregister the ntfs sysctls. */ ntfs_sysctl(0); }
diff --git a/fs/ntfs/unistr.c b/fs/ntfs/unistr.c index b123c0f..a1b5721 100644 --- a/fs/ntfs/unistr.c +++ b/fs/ntfs/unistr.c
@@ -350,7 +350,7 @@ } if (!ns) { ns_len = ins_len * NLS_MAX_CHARSET_SIZE; - ns = (unsigned char*)kmalloc(ns_len + 1, GFP_NOFS); + ns = kmalloc(ns_len + 1, GFP_NOFS); if (!ns) goto mem_err_out; } @@ -365,7 +365,7 @@ else if (wc == -ENAMETOOLONG && ns != *outs) { unsigned char *tc; /* Grow in multiples of 64 bytes. */ - tc = (unsigned char*)kmalloc((ns_len + 64) & + tc = kmalloc((ns_len + 64) & ~63, GFP_NOFS); if (tc) { memcpy(tc, ns, ns_len);
diff --git a/fs/ocfs2/dlm/dlmfs.c b/fs/ocfs2/dlm/dlmfs.c index 033ad17..0368c64 100644 --- a/fs/ocfs2/dlm/dlmfs.c +++ b/fs/ocfs2/dlm/dlmfs.c
@@ -335,7 +335,6 @@ inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; @@ -362,7 +361,6 @@ inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; @@ -629,9 +627,7 @@ flush_workqueue(user_dlm_worker); destroy_workqueue(user_dlm_worker); - if (kmem_cache_destroy(dlmfs_inode_cache)) - printk(KERN_INFO "dlmfs_inode_cache: not all structures " - "were freed\n"); + kmem_cache_destroy(dlmfs_inode_cache); } MODULE_AUTHOR("Oracle");
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index de88706..8801e41 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c
@@ -2052,7 +2052,7 @@ mlog_errno(ret); goto out; } - osb = (struct ocfs2_super *) inode->u.generic_ip; + osb = inode->i_private; ocfs2_get_dlm_debug(osb->osb_dlm_debug); priv->p_dlm_debug = osb->osb_dlm_debug; INIT_LIST_HEAD(&priv->p_iter_res.l_debug_list);
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c index 69d3db5..16e8e74 100644 --- a/fs/ocfs2/inode.c +++ b/fs/ocfs2/inode.c
@@ -269,7 +269,6 @@ inode->i_mode = le16_to_cpu(fe->i_mode); inode->i_uid = le32_to_cpu(fe->i_uid); inode->i_gid = le32_to_cpu(fe->i_gid); - inode->i_blksize = (u32)osb->s_clustersize; /* Fast symlinks will have i_size but no allocated clusters. */ if (S_ISLNK(inode->i_mode) && !fe->i_clusters) @@ -1258,8 +1257,6 @@ void ocfs2_refresh_inode(struct inode *inode, struct ocfs2_dinode *fe) { - struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); - spin_lock(&OCFS2_I(inode)->ip_lock); OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters); @@ -1270,7 +1267,6 @@ inode->i_uid = le32_to_cpu(fe->i_uid); inode->i_gid = le32_to_cpu(fe->i_gid); inode->i_mode = le16_to_cpu(fe->i_mode); - inode->i_blksize = (u32) osb->s_clustersize; if (S_ISLNK(inode->i_mode) && le32_to_cpu(fe->i_clusters) == 0) inode->i_blocks = 0; else
diff --git a/fs/partitions/efi.c b/fs/partitions/efi.c index 6373028..1bea610 100644 --- a/fs/partitions/efi.c +++ b/fs/partitions/efi.c
@@ -238,10 +238,9 @@ le32_to_cpu(gpt->sizeof_partition_entry); if (!count) return NULL; - pte = kmalloc(count, GFP_KERNEL); + pte = kzalloc(count, GFP_KERNEL); if (!pte) return NULL; - memset(pte, 0, count); if (read_lba(bdev, le64_to_cpu(gpt->partition_entry_lba), (u8 *) pte, @@ -269,10 +268,9 @@ if (!bdev) return NULL; - gpt = kmalloc(sizeof (gpt_header), GFP_KERNEL); + gpt = kzalloc(sizeof (gpt_header), GFP_KERNEL); if (!gpt) return NULL; - memset(gpt, 0, sizeof (gpt_header)); if (read_lba(bdev, lba, (u8 *) gpt, sizeof (gpt_header)) < sizeof (gpt_header)) { @@ -526,9 +524,8 @@ lastlba = last_lba(bdev); if (!force_gpt) { /* This will be added to the EFI Spec. per Intel after v1.02. */ - legacymbr = kmalloc(sizeof (*legacymbr), GFP_KERNEL); + legacymbr = kzalloc(sizeof (*legacymbr), GFP_KERNEL); if (legacymbr) { - memset(legacymbr, 0, sizeof (*legacymbr)); read_lba(bdev, 0, (u8 *) legacymbr, sizeof (*legacymbr)); good_pmbr = is_pmbr_valid(legacymbr, lastlba);
diff --git a/fs/pipe.c b/fs/pipe.c index 2035257..f3b6f71 100644 --- a/fs/pipe.c +++ b/fs/pipe.c
@@ -879,7 +879,6 @@ inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; - inode->i_blksize = PAGE_SIZE; return inode;
diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 146a434..987c773 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h
@@ -28,6 +28,7 @@ (vmi)->largest_chunk = 0; \ } while(0) +extern int nommu_vma_show(struct seq_file *, struct vm_area_struct *); #endif extern void create_seq_entry(char *name, mode_t mode, const struct file_operations *f);
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c index 6a984f6..3ceff38 100644 --- a/fs/proc/kcore.c +++ b/fs/proc/kcore.c
@@ -279,12 +279,11 @@ tsz = elf_buflen - *fpos; if (buflen < tsz) tsz = buflen; - elf_buf = kmalloc(elf_buflen, GFP_ATOMIC); + elf_buf = kzalloc(elf_buflen, GFP_ATOMIC); if (!elf_buf) { read_unlock(&kclist_lock); return -ENOMEM; } - memset(elf_buf, 0, elf_buflen); elf_kcore_store_hdr(elf_buf, nphdr, elf_buflen); read_unlock(&kclist_lock); if (copy_to_user(buffer, elf_buf + *fpos, tsz)) { @@ -330,10 +329,9 @@ unsigned long curstart = start; unsigned long cursize = tsz; - elf_buf = kmalloc(tsz, GFP_KERNEL); + elf_buf = kzalloc(tsz, GFP_KERNEL); if (!elf_buf) return -ENOMEM; - memset(elf_buf, 0, tsz); read_lock(&vmlist_lock); for (m=vmlist; m && cursize; m=m->next) {
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c index cff10ab..d7dbdf9 100644 --- a/fs/proc/nommu.c +++ b/fs/proc/nommu.c
@@ -33,19 +33,15 @@ #include "internal.h" /* - * display a list of all the VMAs the kernel knows about - * - nommu kernals have a single flat list + * display a single VMA to a sequenced file */ -static int nommu_vma_list_show(struct seq_file *m, void *v) +int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma) { - struct vm_area_struct *vma; unsigned long ino = 0; struct file *file; dev_t dev = 0; int flags, len; - vma = rb_entry((struct rb_node *) v, struct vm_area_struct, vm_rb); - flags = vma->vm_flags; file = vma->vm_file; @@ -78,6 +74,18 @@ return 0; } +/* + * display a list of all the VMAs the kernel knows about + * - nommu kernals have a single flat list + */ +static int nommu_vma_list_show(struct seq_file *m, void *v) +{ + struct vm_area_struct *vma; + + vma = rb_entry((struct rb_node *) v, struct vm_area_struct, vm_rb); + return nommu_vma_show(m, vma); +} + static void *nommu_vma_list_start(struct seq_file *m, loff_t *_pos) { struct rb_node *_rb;
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index 9421562..5bbd608 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c
@@ -157,10 +157,12 @@ "SwapCached: %8lu kB\n" "Active: %8lu kB\n" "Inactive: %8lu kB\n" +#ifdef CONFIG_HIGHMEM "HighTotal: %8lu kB\n" "HighFree: %8lu kB\n" "LowTotal: %8lu kB\n" "LowFree: %8lu kB\n" +#endif "SwapTotal: %8lu kB\n" "SwapFree: %8lu kB\n" "Dirty: %8lu kB\n" @@ -168,6 +170,8 @@ "AnonPages: %8lu kB\n" "Mapped: %8lu kB\n" "Slab: %8lu kB\n" + "SReclaimable: %8lu kB\n" + "SUnreclaim: %8lu kB\n" "PageTables: %8lu kB\n" "NFS_Unstable: %8lu kB\n" "Bounce: %8lu kB\n" @@ -183,17 +187,22 @@ K(total_swapcache_pages), K(active), K(inactive), +#ifdef CONFIG_HIGHMEM K(i.totalhigh), K(i.freehigh), K(i.totalram-i.totalhigh), K(i.freeram-i.freehigh), +#endif K(i.totalswap), K(i.freeswap), K(global_page_state(NR_FILE_DIRTY)), K(global_page_state(NR_WRITEBACK)), K(global_page_state(NR_ANON_PAGES)), K(global_page_state(NR_FILE_MAPPED)), - K(global_page_state(NR_SLAB)), + K(global_page_state(NR_SLAB_RECLAIMABLE) + + global_page_state(NR_SLAB_UNRECLAIMABLE)), + K(global_page_state(NR_SLAB_RECLAIMABLE)), + K(global_page_state(NR_SLAB_UNRECLAIMABLE)), K(global_page_state(NR_PAGETABLE)), K(global_page_state(NR_UNSTABLE_NFS)), K(global_page_state(NR_BOUNCE)),
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 0a163a4..6b769af 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c
@@ -122,11 +122,6 @@ unsigned long private_dirty; }; -__attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma) -{ - return NULL; -} - static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats *mss) { struct proc_maps_private *priv = m->private;
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c index 4616ed5..091aa8e 100644 --- a/fs/proc/task_nommu.c +++ b/fs/proc/task_nommu.c
@@ -138,25 +138,63 @@ } /* - * Albert D. Cahalan suggested to fake entries for the traditional - * sections here. This might be worth investigating. + * display mapping lines for a particular process's /proc/pid/maps */ -static int show_map(struct seq_file *m, void *v) +static int show_map(struct seq_file *m, void *_vml) { - return 0; + struct vm_list_struct *vml = _vml; + return nommu_vma_show(m, vml->vma); } + static void *m_start(struct seq_file *m, loff_t *pos) { + struct proc_maps_private *priv = m->private; + struct vm_list_struct *vml; + struct mm_struct *mm; + loff_t n = *pos; + + /* pin the task and mm whilst we play with them */ + priv->task = get_pid_task(priv->pid, PIDTYPE_PID); + if (!priv->task) + return NULL; + + mm = get_task_mm(priv->task); + if (!mm) { + put_task_struct(priv->task); + priv->task = NULL; + return NULL; + } + + down_read(&mm->mmap_sem); + + /* start from the Nth VMA */ + for (vml = mm->context.vmlist; vml; vml = vml->next) + if (n-- == 0) + return vml; return NULL; } -static void m_stop(struct seq_file *m, void *v) + +static void m_stop(struct seq_file *m, void *_vml) { + struct proc_maps_private *priv = m->private; + + if (priv->task) { + struct mm_struct *mm = priv->task->mm; + up_read(&mm->mmap_sem); + mmput(mm); + put_task_struct(priv->task); + } } -static void *m_next(struct seq_file *m, void *v, loff_t *pos) + +static void *m_next(struct seq_file *m, void *_vml, loff_t *pos) { - return NULL; + struct vm_list_struct *vml = _vml; + + (*pos)++; + return vml ? vml->next : NULL; } -static struct seq_operations proc_pid_maps_op = { + +static struct seq_operations proc_pid_maps_ops = { .start = m_start, .next = m_next, .stop = m_stop, @@ -165,11 +203,19 @@ static int maps_open(struct inode *inode, struct file *file) { - int ret; - ret = seq_open(file, &proc_pid_maps_op); - if (!ret) { - struct seq_file *m = file->private_data; - m->private = NULL; + struct proc_maps_private *priv; + int ret = -ENOMEM; + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (priv) { + priv->pid = proc_pid(inode); + ret = seq_open(file, &proc_pid_maps_ops); + if (!ret) { + struct seq_file *m = file->private_data; + m->private = priv; + } else { + kfree(priv); + } } return ret; } @@ -178,6 +224,6 @@ .open = maps_open, .read = seq_read, .llseek = seq_lseek, - .release = seq_release, + .release = seq_release_private, };
diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c index 5a90349..5a41db2 100644 --- a/fs/qnx4/inode.c +++ b/fs/qnx4/inode.c
@@ -358,11 +358,10 @@ const char *errmsg; struct qnx4_sb_info *qs; - qs = kmalloc(sizeof(struct qnx4_sb_info), GFP_KERNEL); + qs = kzalloc(sizeof(struct qnx4_sb_info), GFP_KERNEL); if (!qs) return -ENOMEM; s->s_fs_info = qs; - memset(qs, 0, sizeof(struct qnx4_sb_info)); sb_set_blocksize(s, QNX4_BLOCK_SIZE); @@ -497,7 +496,6 @@ inode->i_ctime.tv_sec = le32_to_cpu(raw_inode->di_ctime); inode->i_ctime.tv_nsec = 0; inode->i_blocks = le32_to_cpu(raw_inode->di_first_xtnt.xtnt_size); - inode->i_blksize = QNX4_DIR_ENTRY_SIZE; memcpy(qnx4_inode, raw_inode, QNX4_DIR_ENTRY_SIZE); if (S_ISREG(inode->i_mode)) { @@ -557,9 +555,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(qnx4_inode_cachep)) - printk(KERN_INFO - "qnx4_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(qnx4_inode_cachep); } static int qnx4_get_sb(struct file_system_type *fs_type,
diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c index b967733..bc0e516 100644 --- a/fs/ramfs/inode.c +++ b/fs/ramfs/inode.c
@@ -58,7 +58,6 @@ inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mapping->a_ops = &ramfs_aops; inode->i_mapping->backing_dev_info = &ramfs_backing_dev_info;
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 52f1e21..8810fda 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c
@@ -17,8 +17,6 @@ #include <linux/writeback.h> #include <linux/quotaops.h> -extern int reiserfs_default_io_size; /* default io size devuned in super.c */ - static int reiserfs_commit_write(struct file *f, struct page *page, unsigned from, unsigned to); static int reiserfs_prepare_write(struct file *f, struct page *page, @@ -1122,7 +1120,6 @@ ih = PATH_PITEM_HEAD(path); copy_key(INODE_PKEY(inode), &(ih->ih_key)); - inode->i_blksize = reiserfs_default_io_size; INIT_LIST_HEAD(&(REISERFS_I(inode)->i_prealloc_list)); REISERFS_I(inode)->i_flags = 0; @@ -1877,7 +1874,6 @@ } // these do not go to on-disk stat data inode->i_ino = le32_to_cpu(ih.ih_key.k_objectid); - inode->i_blksize = reiserfs_default_io_size; // store in in-core inode the key of stat data and version all // object items will have (directory items will have old offset
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c index 5567328..b40d4d6 100644 --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c
@@ -530,9 +530,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(reiserfs_inode_cachep)) - reiserfs_warning(NULL, - "reiserfs_inode_cache: not all structures were freed"); + kmem_cache_destroy(reiserfs_inode_cachep); } /* we don't mark inodes dirty, we just log them */ @@ -725,12 +723,6 @@ {NULL, 0, 0}, }; -int reiserfs_default_io_size = 128 * 1024; /* Default recommended I/O size is 128k. - There might be broken applications that are - confused by this. Use nolargeio mount option - to get usual i/o size = PAGE_SIZE. - */ - /* proceed only one option from a list *cur - string containing of mount options opts - array of options which are accepted opt_arg - if option is found and requires an argument and if it is specifed @@ -959,19 +951,8 @@ } if (c == 'w') { - char *p = NULL; - int val = simple_strtoul(arg, &p, 0); - - if (*p != '\0') { - reiserfs_warning(s, - "reiserfs_parse_options: non-numeric value %s for nolargeio option", - arg); - return 0; - } - if (val) - reiserfs_default_io_size = PAGE_SIZE; - else - reiserfs_default_io_size = 128 * 1024; + reiserfs_warning(s, "reiserfs: nolargeio option is no longer supported"); + return 0; } if (c == 'j') {
diff --git a/fs/romfs/inode.c b/fs/romfs/inode.c index 22eed61..ddcd9e1 100644 --- a/fs/romfs/inode.c +++ b/fs/romfs/inode.c
@@ -589,8 +589,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(romfs_inode_cachep)) - printk(KERN_INFO "romfs_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(romfs_inode_cachep); } static int romfs_remount(struct super_block *sb, int *flags, char *data)
diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c index a1ed657..2c122ee 100644 --- a/fs/smbfs/inode.c +++ b/fs/smbfs/inode.c
@@ -89,8 +89,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(smb_inode_cachep)) - printk(KERN_INFO "smb_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(smb_inode_cachep); } static int smb_remount(struct super_block *sb, int *flags, char *data) @@ -167,7 +166,6 @@ fattr->f_mtime = inode->i_mtime; fattr->f_ctime = inode->i_ctime; fattr->f_atime = inode->i_atime; - fattr->f_blksize= inode->i_blksize; fattr->f_blocks = inode->i_blocks; fattr->attr = SMB_I(inode)->attr; @@ -201,7 +199,6 @@ inode->i_uid = fattr->f_uid; inode->i_gid = fattr->f_gid; inode->i_ctime = fattr->f_ctime; - inode->i_blksize= fattr->f_blksize; inode->i_blocks = fattr->f_blocks; inode->i_size = fattr->f_size; inode->i_mtime = fattr->f_mtime;
diff --git a/fs/smbfs/proc.c b/fs/smbfs/proc.c index c349505..40e174d 100644 --- a/fs/smbfs/proc.c +++ b/fs/smbfs/proc.c
@@ -1826,7 +1826,6 @@ fattr->f_nlink = 1; fattr->f_uid = server->mnt->uid; fattr->f_gid = server->mnt->gid; - fattr->f_blksize = SMB_ST_BLKSIZE; fattr->f_unix = 0; }
diff --git a/fs/smbfs/request.c b/fs/smbfs/request.c index c8e9619..0fb7469 100644 --- a/fs/smbfs/request.c +++ b/fs/smbfs/request.c
@@ -49,8 +49,7 @@ void smb_destroy_request_cache(void) { - if (kmem_cache_destroy(req_cachep)) - printk(KERN_INFO "smb_destroy_request_cache: not all structures were freed\n"); + kmem_cache_destroy(req_cachep); } /*
diff --git a/fs/stat.c b/fs/stat.c index 3a44dcf..60a31d5 100644 --- a/fs/stat.c +++ b/fs/stat.c
@@ -14,6 +14,7 @@ #include <linux/namei.h> #include <linux/security.h> #include <linux/syscalls.h> +#include <linux/pagemap.h> #include <asm/uaccess.h> #include <asm/unistd.h> @@ -32,7 +33,7 @@ stat->ctime = inode->i_ctime; stat->size = i_size_read(inode); stat->blocks = inode->i_blocks; - stat->blksize = inode->i_blksize; + stat->blksize = (1 << inode->i_blkbits); } EXPORT_SYMBOL(generic_fillattr);
diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c index c16a93c..98022e4 100644 --- a/fs/sysfs/bin.c +++ b/fs/sysfs/bin.c
@@ -10,6 +10,7 @@ #include <linux/errno.h> #include <linux/fs.h> +#include <linux/kernel.h> #include <linux/kobject.h> #include <linux/module.h> #include <linux/slab.h> @@ -176,7 +177,6 @@ * sysfs_create_bin_file - create binary file for object. * @kobj: object. * @attr: attribute descriptor. - * */ int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr) @@ -191,13 +191,16 @@ * sysfs_remove_bin_file - remove binary file for object. * @kobj: object. * @attr: attribute descriptor. - * */ -int sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr) +void sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr) { - sysfs_hash_and_remove(kobj->dentry,attr->attr.name); - return 0; + if (sysfs_hash_and_remove(kobj->dentry, attr->attr.name) < 0) { + printk(KERN_ERR "%s: " + "bad dentry or inode or no such file: \"%s\"\n", + __FUNCTION__, attr->attr.name); + dump_stack(); + } } EXPORT_SYMBOL_GPL(sysfs_create_bin_file);
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 61c4243..5f3d725 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c
@@ -43,7 +43,7 @@ memset(sd, 0, sizeof(*sd)); atomic_set(&sd->s_count, 1); - atomic_set(&sd->s_event, 0); + atomic_set(&sd->s_event, 1); INIT_LIST_HEAD(&sd->s_children); list_add(&sd->s_sibling, &parent_sd->s_children); sd->s_element = element;
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c index 9889e54..e79e38d 100644 --- a/fs/sysfs/inode.c +++ b/fs/sysfs/inode.c
@@ -12,6 +12,7 @@ #include <linux/namei.h> #include <linux/backing-dev.h> #include <linux/capability.h> +#include <linux/errno.h> #include "sysfs.h" extern struct super_block * sysfs_sb; @@ -124,7 +125,6 @@ { struct inode * inode = new_inode(sysfs_sb); if (inode) { - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mapping->a_ops = &sysfs_aops; inode->i_mapping->backing_dev_info = &sysfs_backing_dev_info; @@ -234,17 +234,18 @@ } } -void sysfs_hash_and_remove(struct dentry * dir, const char * name) +int sysfs_hash_and_remove(struct dentry * dir, const char * name) { struct sysfs_dirent * sd; struct sysfs_dirent * parent_sd; + int found = 0; if (!dir) - return; + return -ENOENT; if (dir->d_inode == NULL) /* no inode means this hasn't been made visible yet */ - return; + return -ENOENT; parent_sd = dir->d_fsdata; mutex_lock(&dir->d_inode->i_mutex); @@ -255,8 +256,11 @@ list_del_init(&sd->s_sibling); sysfs_drop_dentry(sd, dir); sysfs_put(sd); + found = 1; break; } } mutex_unlock(&dir->d_inode->i_mutex); + + return found ? 0 : -ENOENT; }
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c index d2eac3c..f50e3cc 100644 --- a/fs/sysfs/symlink.c +++ b/fs/sysfs/symlink.c
@@ -3,6 +3,7 @@ */ #include <linux/fs.h> +#include <linux/mount.h> #include <linux/module.h> #include <linux/kobject.h> #include <linux/namei.h> @@ -82,10 +83,19 @@ */ int sysfs_create_link(struct kobject * kobj, struct kobject * target, const char * name) { - struct dentry * dentry = kobj->dentry; + struct dentry *dentry = NULL; int error = -EEXIST; - BUG_ON(!kobj || !kobj->dentry || !name); + BUG_ON(!name); + + if (!kobj) { + if (sysfs_mount && sysfs_mount->mnt_sb) + dentry = sysfs_mount->mnt_sb->s_root; + } else + dentry = kobj->dentry; + + if (!dentry) + return -EFAULT; mutex_lock(&dentry->d_inode->i_mutex); if (!sysfs_dirent_exist(dentry->d_fsdata, name))
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h index 3651ffb..6f3d6bd 100644 --- a/fs/sysfs/sysfs.h +++ b/fs/sysfs/sysfs.h
@@ -10,7 +10,7 @@ umode_t, int); extern int sysfs_add_file(struct dentry *, const struct attribute *, int); -extern void sysfs_hash_and_remove(struct dentry * dir, const char * name); +extern int sysfs_hash_and_remove(struct dentry * dir, const char * name); extern struct sysfs_dirent *sysfs_find(struct sysfs_dirent *dir, const char * name); extern int sysfs_create_subdir(struct kobject *, const char *, struct dentry **);
diff --git a/fs/sysv/ialloc.c b/fs/sysv/ialloc.c index 9b585d1..115ab0d 100644 --- a/fs/sysv/ialloc.c +++ b/fs/sysv/ialloc.c
@@ -170,7 +170,7 @@ inode->i_uid = current->fsuid; inode->i_ino = fs16_to_cpu(sbi, ino); inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; memset(SYSV_I(inode)->i_data, 0, sizeof(SYSV_I(inode)->i_data)); SYSV_I(inode)->i_dir_start_lookup = 0; insert_inode_hash(inode);
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c index 58b2d22..d63c5e4 100644 --- a/fs/sysv/inode.c +++ b/fs/sysv/inode.c
@@ -201,7 +201,7 @@ inode->i_ctime.tv_nsec = 0; inode->i_atime.tv_nsec = 0; inode->i_mtime.tv_nsec = 0; - inode->i_blocks = inode->i_blksize = 0; + inode->i_blocks = 0; si = SYSV_I(inode); for (block = 0; block < 10+1+1+1; block++)
diff --git a/fs/sysv/super.c b/fs/sysv/super.c index 876639b..350cba5 100644 --- a/fs/sysv/super.c +++ b/fs/sysv/super.c
@@ -369,10 +369,9 @@ if (64 != sizeof (struct sysv_inode)) panic("sysv fs: bad inode size"); - sbi = kmalloc(sizeof(struct sysv_sb_info), GFP_KERNEL); + sbi = kzalloc(sizeof(struct sysv_sb_info), GFP_KERNEL); if (!sbi) return -ENOMEM; - memset(sbi, 0, sizeof(struct sysv_sb_info)); sbi->s_sb = sb; sbi->s_block_base = 0; @@ -453,10 +452,9 @@ if (64 != sizeof (struct sysv_inode)) panic("sysv fs: bad i-node size"); - sbi = kmalloc(sizeof(struct sysv_sb_info), GFP_KERNEL); + sbi = kzalloc(sizeof(struct sysv_sb_info), GFP_KERNEL); if (!sbi) return -ENOMEM; - memset(sbi, 0, sizeof(struct sysv_sb_info)); sbi->s_sb = sb; sbi->s_block_base = 0;
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c index 3332347..8206983 100644 --- a/fs/udf/ialloc.c +++ b/fs/udf/ialloc.c
@@ -121,7 +121,6 @@ UDF_I_LOCATION(inode).logicalBlockNum = block; UDF_I_LOCATION(inode).partitionReferenceNum = UDF_I_LOCATION(dir).partitionReferenceNum; inode->i_ino = udf_get_lb_pblock(sb, UDF_I_LOCATION(inode), 0); - inode->i_blksize = PAGE_SIZE; inode->i_blocks = 0; UDF_I_LENEATTR(inode) = 0; UDF_I_LENALLOC(inode) = 0; @@ -130,14 +129,12 @@ { UDF_I_EFE(inode) = 1; UDF_UPDATE_UDFREV(inode->i_sb, UDF_VERS_USE_EXTENDED_FE); - UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry), GFP_KERNEL); - memset(UDF_I_DATA(inode), 0x00, inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry)); + UDF_I_DATA(inode) = kzalloc(inode->i_sb->s_blocksize - sizeof(struct extendedFileEntry), GFP_KERNEL); } else { UDF_I_EFE(inode) = 0; - UDF_I_DATA(inode) = kmalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), GFP_KERNEL); - memset(UDF_I_DATA(inode), 0x00, inode->i_sb->s_blocksize - sizeof(struct fileEntry)); + UDF_I_DATA(inode) = kzalloc(inode->i_sb->s_blocksize - sizeof(struct fileEntry), GFP_KERNEL); } if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_AD_IN_ICB)) UDF_I_ALLOCTYPE(inode) = ICBTAG_FLAG_AD_IN_ICB;
diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 605f511..b223b32 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c
@@ -916,8 +916,6 @@ * i_nlink = 1 * i_op = NULL; */ - inode->i_blksize = PAGE_SIZE; - bh = udf_read_ptagged(inode->i_sb, UDF_I_LOCATION(inode), 0, &ident); if (!bh)
diff --git a/fs/udf/super.c b/fs/udf/super.c index fcce1a2..5dd356c 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c
@@ -156,8 +156,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(udf_inode_cachep)) - printk(KERN_INFO "udf_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(udf_inode_cachep); } /* Superblock operations */
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c index 9501dcd..2ad1259 100644 --- a/fs/ufs/ialloc.c +++ b/fs/ufs/ialloc.c
@@ -255,7 +255,6 @@ inode->i_gid = current->fsgid; inode->i_ino = cg * uspi->s_ipg + bit; - inode->i_blksize = PAGE_SIZE; /* This is the optimal IO size (for stat), not the fs block size */ inode->i_blocks = 0; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; ufsi->i_flags = UFS_I(dir)->i_flags;
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c index 30c6e8a9..ee1eaa6 100644 --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c
@@ -741,7 +741,6 @@ ufs1_read_inode(inode, ufs_inode + ufs_inotofsbo(inode->i_ino)); } - inode->i_blksize = PAGE_SIZE;/*This is the optimal IO size (for stat)*/ inode->i_version++; ufsi->i_lastfrag = (inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift;
diff --git a/fs/ufs/super.c b/fs/ufs/super.c index 992ee0b..ec79e30 100644 --- a/fs/ufs/super.c +++ b/fs/ufs/super.c
@@ -611,11 +611,10 @@ UFSD("ENTER\n"); - sbi = kmalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); + sbi = kzalloc(sizeof(struct ufs_sb_info), GFP_KERNEL); if (!sbi) goto failed_nomem; sb->s_fs_info = sbi; - memset(sbi, 0, sizeof(struct ufs_sb_info)); UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY)); @@ -1245,8 +1244,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(ufs_inode_cachep)) - printk(KERN_INFO "ufs_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(ufs_inode_cachep); } #ifdef CONFIG_QUOTA
diff --git a/fs/xfs/linux-2.6/kmem.h b/fs/xfs/linux-2.6/kmem.h index 939bd84..0e8293c 100644 --- a/fs/xfs/linux-2.6/kmem.h +++ b/fs/xfs/linux-2.6/kmem.h
@@ -91,8 +91,8 @@ static inline void kmem_zone_destroy(kmem_zone_t *zone) { - if (zone && kmem_cache_destroy(zone)) - BUG(); + if (zone) + kmem_cache_destroy(zone); } extern void *kmem_zone_alloc(kmem_zone_t *, unsigned int __nocast);
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c index 3d4f6df..41cfcba 100644 --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -370,7 +370,7 @@ /* Try fairly hard to get memory */ do { - if ((read_buf = (caddr_t)kmalloc(rlen, GFP_KERNEL))) + if ((read_buf = kmalloc(rlen, GFP_KERNEL))) break; rlen >>= 1; } while (rlen >= 1024);
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c index d918002..22e3b71 100644 --- a/fs/xfs/linux-2.6/xfs_iops.c +++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -553,13 +553,13 @@ ASSERT(dentry); ASSERT(nd); - link = (char *)kmalloc(MAXPATHLEN+1, GFP_KERNEL); + link = kmalloc(MAXPATHLEN+1, GFP_KERNEL); if (!link) { nd_set_link(nd, ERR_PTR(-ENOMEM)); return NULL; } - uio = (uio_t *)kmalloc(sizeof(uio_t), GFP_KERNEL); + uio = kmalloc(sizeof(uio_t), GFP_KERNEL); if (!uio) { kfree(link); nd_set_link(nd, ERR_PTR(-ENOMEM));
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index 4754f34..9df9ed3 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -171,7 +171,6 @@ break; } - inode->i_blksize = xfs_preferred_iosize(mp); inode->i_generation = ip->i_d.di_gen; i_size_write(inode, ip->i_d.di_size); inode->i_blocks =
diff --git a/fs/xfs/linux-2.6/xfs_vnode.c b/fs/xfs/linux-2.6/xfs_vnode.c index 6628d96..553fa73 100644 --- a/fs/xfs/linux-2.6/xfs_vnode.c +++ b/fs/xfs/linux-2.6/xfs_vnode.c
@@ -122,7 +122,6 @@ inode->i_blocks = vap->va_nblocks; inode->i_mtime = vap->va_mtime; inode->i_ctime = vap->va_ctime; - inode->i_blksize = vap->va_blocksize; if (vap->va_xflags & XFS_XFLAG_IMMUTABLE) inode->i_flags |= S_IMMUTABLE; else
diff --git a/include/asm-alpha/libata-portmap.h b/include/asm-alpha/libata-portmap.h deleted file mode 100644 index 75484ef..0000000 --- a/include/asm-alpha/libata-portmap.h +++ /dev/null
@@ -1 +0,0 @@ -#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-alpha/mmzone.h b/include/asm-alpha/mmzone.h index 64d0ab9..8af56ce 100644 --- a/include/asm-alpha/mmzone.h +++ b/include/asm-alpha/mmzone.h
@@ -75,6 +75,7 @@ #define VALID_PAGE(page) (((page) - mem_map) < max_mapnr) #define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> 32)) +#define pgd_page(pgd) (pfn_to_page(pgd_val(pgd) >> 32)) #define pte_pfn(pte) (pte_val(pte) >> 32) #define mk_pte(page, pgprot) \
diff --git a/include/asm-alpha/pgtable.h b/include/asm-alpha/pgtable.h index 93eaa58..49ac9be 100644 --- a/include/asm-alpha/pgtable.h +++ b/include/asm-alpha/pgtable.h
@@ -230,16 +230,17 @@ extern inline unsigned long -pmd_page_kernel(pmd_t pmd) +pmd_page_vaddr(pmd_t pmd) { return ((pmd_val(pmd) & _PFN_MASK) >> (32-PAGE_SHIFT)) + PAGE_OFFSET; } #ifndef CONFIG_DISCONTIGMEM #define pmd_page(pmd) (mem_map + ((pmd_val(pmd) & _PFN_MASK) >> 32)) +#define pgd_page(pgd) (mem_map + ((pgd_val(pgd) & _PFN_MASK) >> 32)) #endif -extern inline unsigned long pgd_page(pgd_t pgd) +extern inline unsigned long pgd_page_vaddr(pgd_t pgd) { return PAGE_OFFSET + ((pgd_val(pgd) & _PFN_MASK) >> (32-PAGE_SHIFT)); } extern inline int pte_none(pte_t pte) { return !pte_val(pte); } @@ -293,13 +294,13 @@ /* Find an entry in the second-level page table.. */ extern inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address) { - return (pmd_t *) pgd_page(*dir) + ((address >> PMD_SHIFT) & (PTRS_PER_PAGE - 1)); + return (pmd_t *) pgd_page_vaddr(*dir) + ((address >> PMD_SHIFT) & (PTRS_PER_PAGE - 1)); } /* Find an entry in the third-level page table.. */ extern inline pte_t * pte_offset_kernel(pmd_t * dir, unsigned long address) { - return (pte_t *) pmd_page_kernel(*dir) + return (pte_t *) pmd_page_vaddr(*dir) + ((address >> PAGE_SHIFT) & (PTRS_PER_PAGE - 1)); }
diff --git a/include/asm-arm/arch-pxa/udc.h b/include/asm-arm/arch-pxa/udc.h index 30548a3..121cd24 100644 --- a/include/asm-arm/arch-pxa/udc.h +++ b/include/asm-arm/arch-pxa/udc.h
@@ -12,6 +12,14 @@ void (*udc_command)(int cmd); #define PXA2XX_UDC_CMD_CONNECT 0 /* let host see us */ #define PXA2XX_UDC_CMD_DISCONNECT 1 /* so host won't see us */ + + /* Boards following the design guidelines in the developer's manual, + * with on-chip GPIOs not Lubbock's wierd hardware, can have a sane + * VBUS IRQ and omit the methods above. Store the GPIO number + * here; for GPIO 0, also mask in one of the pxa_gpio_mode() bits. + */ + u16 gpio_vbus; /* high == vbus present */ + u16 gpio_pullup; /* high == pullup activated */ }; extern void pxa_set_udc_info(struct pxa2xx_udc_mach_info *info);
diff --git a/include/asm-arm/pgtable.h b/include/asm-arm/pgtable.h index 8d3919c..4d10d31 100644 --- a/include/asm-arm/pgtable.h +++ b/include/asm-arm/pgtable.h
@@ -224,9 +224,9 @@ #define pte_none(pte) (!pte_val(pte)) #define pte_clear(mm,addr,ptep) set_pte_at((mm),(addr),(ptep), __pte(0)) #define pte_page(pte) (pfn_to_page(pte_pfn(pte))) -#define pte_offset_kernel(dir,addr) (pmd_page_kernel(*(dir)) + __pte_index(addr)) -#define pte_offset_map(dir,addr) (pmd_page_kernel(*(dir)) + __pte_index(addr)) -#define pte_offset_map_nested(dir,addr) (pmd_page_kernel(*(dir)) + __pte_index(addr)) +#define pte_offset_kernel(dir,addr) (pmd_page_vaddr(*(dir)) + __pte_index(addr)) +#define pte_offset_map(dir,addr) (pmd_page_vaddr(*(dir)) + __pte_index(addr)) +#define pte_offset_map_nested(dir,addr) (pmd_page_vaddr(*(dir)) + __pte_index(addr)) #define pte_unmap(pte) do { } while (0) #define pte_unmap_nested(pte) do { } while (0) @@ -291,7 +291,7 @@ clean_pmd_entry(pmdp); \ } while (0) -static inline pte_t *pmd_page_kernel(pmd_t pmd) +static inline pte_t *pmd_page_vaddr(pmd_t pmd) { unsigned long ptr;
diff --git a/include/asm-arm/unistd.h b/include/asm-arm/unistd.h index 1e891f8..2ab4078 100644 --- a/include/asm-arm/unistd.h +++ b/include/asm-arm/unistd.h
@@ -377,6 +377,7 @@ #endif #ifdef __KERNEL__ +#include <linux/err.h> #include <linux/linkage.h> #define __sys2(x) #x @@ -396,7 +397,7 @@ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-129)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ errno = -(res); \ res = -1; \ } \
diff --git a/include/asm-arm26/pgtable.h b/include/asm-arm26/pgtable.h index 19ac910..63a8881 100644 --- a/include/asm-arm26/pgtable.h +++ b/include/asm-arm26/pgtable.h
@@ -186,12 +186,12 @@ * return a pointer to memory (no special alignment) */ #define pmd_page(pmd) ((struct page *)(pmd_val((pmd)) & ~_PMD_PRESENT)) -#define pmd_page_kernel(pmd) ((pte_t *)(pmd_val((pmd)) & ~_PMD_PRESENT)) +#define pmd_page_vaddr(pmd) ((pte_t *)(pmd_val((pmd)) & ~_PMD_PRESENT)) -#define pte_offset_kernel(dir,addr) (pmd_page_kernel(*(dir)) + __pte_index(addr)) +#define pte_offset_kernel(dir,addr) (pmd_page_vaddr(*(dir)) + __pte_index(addr)) -#define pte_offset_map(dir,addr) (pmd_page_kernel(*(dir)) + __pte_index(addr)) -#define pte_offset_map_nested(dir,addr) (pmd_page_kernel(*(dir)) + __pte_index(addr)) +#define pte_offset_map(dir,addr) (pmd_page_vaddr(*(dir)) + __pte_index(addr)) +#define pte_offset_map_nested(dir,addr) (pmd_page_vaddr(*(dir)) + __pte_index(addr)) #define pte_unmap(pte) do { } while (0) #define pte_unmap_nested(pte) do { } while (0)
diff --git a/include/asm-arm26/unistd.h b/include/asm-arm26/unistd.h index 70eb6d9..c6d2436 100644 --- a/include/asm-arm26/unistd.h +++ b/include/asm-arm26/unistd.h
@@ -311,6 +311,7 @@ #define __ARM_NR_usr26 (__ARM_NR_BASE+3) #ifdef __KERNEL__ +#include <linux/err.h> #include <linux/linkage.h> #define __sys2(x) #x @@ -322,7 +323,7 @@ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + if ((unsigned long)(res) >= (unsigned long)-MAX_ERRNO) { \ errno = -(res); \ res = -1; \ } \
diff --git a/include/asm-avr32/Kbuild b/include/asm-avr32/Kbuild new file mode 100644 index 0000000..8770e73 --- /dev/null +++ b/include/asm-avr32/Kbuild
@@ -0,0 +1,3 @@ +include include/asm-generic/Kbuild.asm + +headers-y += cachectl.h
diff --git a/include/asm-avr32/a.out.h b/include/asm-avr32/a.out.h new file mode 100644 index 0000000..50bf6e3 --- /dev/null +++ b/include/asm-avr32/a.out.h
@@ -0,0 +1,26 @@ +#ifndef __ASM_AVR32_A_OUT_H +#define __ASM_AVR32_A_OUT_H + +struct exec +{ + unsigned long a_info; /* Use macros N_MAGIC, etc for access */ + unsigned a_text; /* length of text, in bytes */ + unsigned a_data; /* length of data, in bytes */ + unsigned a_bss; /* length of uninitialized data area for file, in bytes */ + unsigned a_syms; /* length of symbol table data in file, in bytes */ + unsigned a_entry; /* start address */ + unsigned a_trsize; /* length of relocation info for text, in bytes */ + unsigned a_drsize; /* length of relocation info for data, in bytes */ +}; + +#define N_TRSIZE(a) ((a).a_trsize) +#define N_DRSIZE(a) ((a).a_drsize) +#define N_SYMSIZE(a) ((a).a_syms) + +#ifdef __KERNEL__ + +#define STACK_TOP TASK_SIZE + +#endif + +#endif /* __ASM_AVR32_A_OUT_H */
diff --git a/include/asm-avr32/addrspace.h b/include/asm-avr32/addrspace.h new file mode 100644 index 0000000..3667948 --- /dev/null +++ b/include/asm-avr32/addrspace.h
@@ -0,0 +1,43 @@ +/* + * Defitions for the address spaces of the AVR32 CPUs. Heavily based on + * include/asm-sh/addrspace.h + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_ADDRSPACE_H +#define __ASM_AVR32_ADDRSPACE_H + +#ifdef CONFIG_MMU + +/* Memory segments when segmentation is enabled */ +#define P0SEG 0x00000000 +#define P1SEG 0x80000000 +#define P2SEG 0xa0000000 +#define P3SEG 0xc0000000 +#define P4SEG 0xe0000000 + +/* Returns the privileged segment base of a given address */ +#define PXSEG(a) (((unsigned long)(a)) & 0xe0000000) + +/* Returns the physical address of a PnSEG (n=1,2) address */ +#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff) + +/* + * Map an address to a certain privileged segment + */ +#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \ + | P1SEG)) +#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \ + | P2SEG)) +#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \ + | P3SEG)) +#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \ + | P4SEG)) + +#endif /* CONFIG_MMU */ + +#endif /* __ASM_AVR32_ADDRSPACE_H */
diff --git a/include/asm-avr32/arch-at32ap/at91rm9200_pdc.h b/include/asm-avr32/arch-at32ap/at91rm9200_pdc.h new file mode 100644 index 0000000..ce1150d44 --- /dev/null +++ b/include/asm-avr32/arch-at32ap/at91rm9200_pdc.h
@@ -0,0 +1,36 @@ +/* + * include/asm-arm/arch-at91rm9200/at91rm9200_pdc.h + * + * Copyright (C) 2005 Ivan Kokshaysky + * Copyright (C) SAN People + * + * Peripheral Data Controller (PDC) registers. + * Based on AT91RM9200 datasheet revision E. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef AT91RM9200_PDC_H +#define AT91RM9200_PDC_H + +#define AT91_PDC_RPR 0x100 /* Receive Pointer Register */ +#define AT91_PDC_RCR 0x104 /* Receive Counter Register */ +#define AT91_PDC_TPR 0x108 /* Transmit Pointer Register */ +#define AT91_PDC_TCR 0x10c /* Transmit Counter Register */ +#define AT91_PDC_RNPR 0x110 /* Receive Next Pointer Register */ +#define AT91_PDC_RNCR 0x114 /* Receive Next Counter Register */ +#define AT91_PDC_TNPR 0x118 /* Transmit Next Pointer Register */ +#define AT91_PDC_TNCR 0x11c /* Transmit Next Counter Register */ + +#define AT91_PDC_PTCR 0x120 /* Transfer Control Register */ +#define AT91_PDC_RXTEN (1 << 0) /* Receiver Transfer Enable */ +#define AT91_PDC_RXTDIS (1 << 1) /* Receiver Transfer Disable */ +#define AT91_PDC_TXTEN (1 << 8) /* Transmitter Transfer Enable */ +#define AT91_PDC_TXTDIS (1 << 9) /* Transmitter Transfer Disable */ + +#define AT91_PDC_PTSR 0x124 /* Transfer Status Register */ + +#endif
diff --git a/include/asm-avr32/arch-at32ap/at91rm9200_usart.h b/include/asm-avr32/arch-at32ap/at91rm9200_usart.h new file mode 100644 index 0000000..79f851e --- /dev/null +++ b/include/asm-avr32/arch-at32ap/at91rm9200_usart.h
@@ -0,0 +1,123 @@ +/* + * include/asm-arm/arch-at91rm9200/at91rm9200_usart.h + * + * Copyright (C) 2005 Ivan Kokshaysky + * Copyright (C) SAN People + * + * USART registers. + * Based on AT91RM9200 datasheet revision E. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef AT91RM9200_USART_H +#define AT91RM9200_USART_H + +#define AT91_US_CR 0x00 /* Control Register */ +#define AT91_US_RSTRX (1 << 2) /* Reset Receiver */ +#define AT91_US_RSTTX (1 << 3) /* Reset Transmitter */ +#define AT91_US_RXEN (1 << 4) /* Receiver Enable */ +#define AT91_US_RXDIS (1 << 5) /* Receiver Disable */ +#define AT91_US_TXEN (1 << 6) /* Transmitter Enable */ +#define AT91_US_TXDIS (1 << 7) /* Transmitter Disable */ +#define AT91_US_RSTSTA (1 << 8) /* Reset Status Bits */ +#define AT91_US_STTBRK (1 << 9) /* Start Break */ +#define AT91_US_STPBRK (1 << 10) /* Stop Break */ +#define AT91_US_STTTO (1 << 11) /* Start Time-out */ +#define AT91_US_SENDA (1 << 12) /* Send Address */ +#define AT91_US_RSTIT (1 << 13) /* Reset Iterations */ +#define AT91_US_RSTNACK (1 << 14) /* Reset Non Acknowledge */ +#define AT91_US_RETTO (1 << 15) /* Rearm Time-out */ +#define AT91_US_DTREN (1 << 16) /* Data Terminal Ready Enable */ +#define AT91_US_DTRDIS (1 << 17) /* Data Terminal Ready Disable */ +#define AT91_US_RTSEN (1 << 18) /* Request To Send Enable */ +#define AT91_US_RTSDIS (1 << 19) /* Request To Send Disable */ + +#define AT91_US_MR 0x04 /* Mode Register */ +#define AT91_US_USMODE (0xf << 0) /* Mode of the USART */ +#define AT91_US_USMODE_NORMAL 0 +#define AT91_US_USMODE_RS485 1 +#define AT91_US_USMODE_HWHS 2 +#define AT91_US_USMODE_MODEM 3 +#define AT91_US_USMODE_ISO7816_T0 4 +#define AT91_US_USMODE_ISO7816_T1 6 +#define AT91_US_USMODE_IRDA 8 +#define AT91_US_USCLKS (3 << 4) /* Clock Selection */ +#define AT91_US_CHRL (3 << 6) /* Character Length */ +#define AT91_US_CHRL_5 (0 << 6) +#define AT91_US_CHRL_6 (1 << 6) +#define AT91_US_CHRL_7 (2 << 6) +#define AT91_US_CHRL_8 (3 << 6) +#define AT91_US_SYNC (1 << 8) /* Synchronous Mode Select */ +#define AT91_US_PAR (7 << 9) /* Parity Type */ +#define AT91_US_PAR_EVEN (0 << 9) +#define AT91_US_PAR_ODD (1 << 9) +#define AT91_US_PAR_SPACE (2 << 9) +#define AT91_US_PAR_MARK (3 << 9) +#define AT91_US_PAR_NONE (4 << 9) +#define AT91_US_PAR_MULTI_DROP (6 << 9) +#define AT91_US_NBSTOP (3 << 12) /* Number of Stop Bits */ +#define AT91_US_NBSTOP_1 (0 << 12) +#define AT91_US_NBSTOP_1_5 (1 << 12) +#define AT91_US_NBSTOP_2 (2 << 12) +#define AT91_US_CHMODE (3 << 14) /* Channel Mode */ +#define AT91_US_CHMODE_NORMAL (0 << 14) +#define AT91_US_CHMODE_ECHO (1 << 14) +#define AT91_US_CHMODE_LOC_LOOP (2 << 14) +#define AT91_US_CHMODE_REM_LOOP (3 << 14) +#define AT91_US_MSBF (1 << 16) /* Bit Order */ +#define AT91_US_MODE9 (1 << 17) /* 9-bit Character Length */ +#define AT91_US_CLKO (1 << 18) /* Clock Output Select */ +#define AT91_US_OVER (1 << 19) /* Oversampling Mode */ +#define AT91_US_INACK (1 << 20) /* Inhibit Non Acknowledge */ +#define AT91_US_DSNACK (1 << 21) /* Disable Successive NACK */ +#define AT91_US_MAX_ITER (7 << 24) /* Max Iterations */ +#define AT91_US_FILTER (1 << 28) /* Infrared Receive Line Filter */ + +#define AT91_US_IER 0x08 /* Interrupt Enable Register */ +#define AT91_US_RXRDY (1 << 0) /* Receiver Ready */ +#define AT91_US_TXRDY (1 << 1) /* Transmitter Ready */ +#define AT91_US_RXBRK (1 << 2) /* Break Received / End of Break */ +#define AT91_US_ENDRX (1 << 3) /* End of Receiver Transfer */ +#define AT91_US_ENDTX (1 << 4) /* End of Transmitter Transfer */ +#define AT91_US_OVRE (1 << 5) /* Overrun Error */ +#define AT91_US_FRAME (1 << 6) /* Framing Error */ +#define AT91_US_PARE (1 << 7) /* Parity Error */ +#define AT91_US_TIMEOUT (1 << 8) /* Receiver Time-out */ +#define AT91_US_TXEMPTY (1 << 9) /* Transmitter Empty */ +#define AT91_US_ITERATION (1 << 10) /* Max number of Repetitions Reached */ +#define AT91_US_TXBUFE (1 << 11) /* Transmission Buffer Empty */ +#define AT91_US_RXBUFF (1 << 12) /* Reception Buffer Full */ +#define AT91_US_NACK (1 << 13) /* Non Acknowledge */ +#define AT91_US_RIIC (1 << 16) /* Ring Indicator Input Change */ +#define AT91_US_DSRIC (1 << 17) /* Data Set Ready Input Change */ +#define AT91_US_DCDIC (1 << 18) /* Data Carrier Detect Input Change */ +#define AT91_US_CTSIC (1 << 19) /* Clear to Send Input Change */ +#define AT91_US_RI (1 << 20) /* RI */ +#define AT91_US_DSR (1 << 21) /* DSR */ +#define AT91_US_DCD (1 << 22) /* DCD */ +#define AT91_US_CTS (1 << 23) /* CTS */ + +#define AT91_US_IDR 0x0c /* Interrupt Disable Register */ +#define AT91_US_IMR 0x10 /* Interrupt Mask Register */ +#define AT91_US_CSR 0x14 /* Channel Status Register */ +#define AT91_US_RHR 0x18 /* Receiver Holding Register */ +#define AT91_US_THR 0x1c /* Transmitter Holding Register */ + +#define AT91_US_BRGR 0x20 /* Baud Rate Generator Register */ +#define AT91_US_CD (0xffff << 0) /* Clock Divider */ + +#define AT91_US_RTOR 0x24 /* Receiver Time-out Register */ +#define AT91_US_TO (0xffff << 0) /* Time-out Value */ + +#define AT91_US_TTGR 0x28 /* Transmitter Timeguard Register */ +#define AT91_US_TG (0xff << 0) /* Timeguard Value */ + +#define AT91_US_FIDI 0x40 /* FI DI Ratio Register */ +#define AT91_US_NER 0x44 /* Number of Errors Register */ +#define AT91_US_IF 0x4c /* IrDA Filter Register */ + +#endif
diff --git a/include/asm-avr32/arch-at32ap/board.h b/include/asm-avr32/arch-at32ap/board.h new file mode 100644 index 0000000..39368e1 --- /dev/null +++ b/include/asm-avr32/arch-at32ap/board.h
@@ -0,0 +1,35 @@ +/* + * Platform data definitions. + */ +#ifndef __ASM_ARCH_BOARD_H +#define __ASM_ARCH_BOARD_H + +#include <linux/types.h> + +/* Add basic devices: system manager, interrupt controller, portmuxes, etc. */ +void at32_add_system_devices(void); + +#define AT91_NR_UART 4 +extern struct platform_device *at91_default_console_device; + +struct platform_device *at32_add_device_usart(unsigned int id); + +struct eth_platform_data { + u8 valid; + u8 mii_phy_addr; + u8 is_rmii; + u8 hw_addr[6]; +}; +struct platform_device * +at32_add_device_eth(unsigned int id, struct eth_platform_data *data); + +struct platform_device *at32_add_device_spi(unsigned int id); + +struct lcdc_platform_data { + unsigned long fbmem_start; + unsigned long fbmem_size; +}; +struct platform_device * +at32_add_device_lcdc(unsigned int id, struct lcdc_platform_data *data); + +#endif /* __ASM_ARCH_BOARD_H */
diff --git a/include/asm-avr32/arch-at32ap/init.h b/include/asm-avr32/arch-at32ap/init.h new file mode 100644 index 0000000..4372263 --- /dev/null +++ b/include/asm-avr32/arch-at32ap/init.h
@@ -0,0 +1,21 @@ +/* + * AT32AP platform initialization calls. + * + * Copyright (C) 2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_AT32AP_INIT_H__ +#define __ASM_AVR32_AT32AP_INIT_H__ + +void setup_platform(void); + +/* Called by setup_platform */ +void at32_clock_init(void); +void at32_portmux_init(void); + +void at32_setup_serial_console(unsigned int usart_id); + +#endif /* __ASM_AVR32_AT32AP_INIT_H__ */
diff --git a/include/asm-avr32/arch-at32ap/portmux.h b/include/asm-avr32/arch-at32ap/portmux.h new file mode 100644 index 0000000..4d50421 --- /dev/null +++ b/include/asm-avr32/arch-at32ap/portmux.h
@@ -0,0 +1,16 @@ +/* + * AT32 portmux interface. + * + * Copyright (C) 2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_AT32_PORTMUX_H__ +#define __ASM_AVR32_AT32_PORTMUX_H__ + +void portmux_set_func(unsigned int portmux_id, unsigned int pin_id, + unsigned int function_id); + +#endif /* __ASM_AVR32_AT32_PORTMUX_H__ */
diff --git a/include/asm-avr32/arch-at32ap/sm.h b/include/asm-avr32/arch-at32ap/sm.h new file mode 100644 index 0000000..265a9ea --- /dev/null +++ b/include/asm-avr32/arch-at32ap/sm.h
@@ -0,0 +1,27 @@ +/* + * AT32 System Manager interface. + * + * Copyright (C) 2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_AT32_SM_H__ +#define __ASM_AVR32_AT32_SM_H__ + +struct irq_chip; +struct platform_device; + +struct at32_sm { + spinlock_t lock; + void __iomem *regs; + struct irq_chip *eim_chip; + unsigned int eim_first_irq; + struct platform_device *pdev; +}; + +extern struct platform_device at32_sm_device; +extern struct at32_sm system_manager; + +#endif /* __ASM_AVR32_AT32_SM_H__ */
diff --git a/include/asm-avr32/arch-at32ap/smc.h b/include/asm-avr32/arch-at32ap/smc.h new file mode 100644 index 0000000..3732b32 --- /dev/null +++ b/include/asm-avr32/arch-at32ap/smc.h
@@ -0,0 +1,60 @@ +/* + * Static Memory Controller for AT32 chips + * + * Copyright (C) 2006 Atmel Corporation + * + * Inspired by the OMAP2 General-Purpose Memory Controller interface + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ARCH_AT32AP_SMC_H +#define __ARCH_AT32AP_SMC_H + +/* + * All timing parameters are in nanoseconds. + */ +struct smc_config { + /* Delay from address valid to assertion of given strobe */ + u16 ncs_read_setup; + u16 nrd_setup; + u16 ncs_write_setup; + u16 nwe_setup; + + /* Pulse length of given strobe */ + u16 ncs_read_pulse; + u16 nrd_pulse; + u16 ncs_write_pulse; + u16 nwe_pulse; + + /* Total cycle length of given operation */ + u16 read_cycle; + u16 write_cycle; + + /* Bus width in bytes */ + u8 bus_width; + + /* + * 0: Data is sampled on rising edge of NCS + * 1: Data is sampled on rising edge of NRD + */ + unsigned int nrd_controlled:1; + + /* + * 0: Data is driven on falling edge of NCS + * 1: Data is driven on falling edge of NWR + */ + unsigned int nwe_controlled:1; + + /* + * 0: Byte select access type + * 1: Byte write access type + */ + unsigned int byte_write:1; +}; + +extern int smc_set_configuration(int cs, const struct smc_config *config); +extern struct smc_config *smc_get_configuration(int cs); + +#endif /* __ARCH_AT32AP_SMC_H */
diff --git a/include/asm-avr32/asm.h b/include/asm-avr32/asm.h new file mode 100644 index 0000000..515c761 --- /dev/null +++ b/include/asm-avr32/asm.h
@@ -0,0 +1,102 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_ASM_H__ +#define __ASM_AVR32_ASM_H__ + +#include <asm/sysreg.h> +#include <asm/asm-offsets.h> +#include <asm/thread_info.h> + +#define mask_interrupts ssrf SR_GM_BIT +#define mask_exceptions ssrf SR_EM_BIT +#define unmask_interrupts csrf SR_GM_BIT +#define unmask_exceptions csrf SR_EM_BIT + +#ifdef CONFIG_FRAME_POINTER + .macro save_fp + st.w --sp, r7 + .endm + .macro restore_fp + ld.w r7, sp++ + .endm + .macro zero_fp + mov r7, 0 + .endm +#else + .macro save_fp + .endm + .macro restore_fp + .endm + .macro zero_fp + .endm +#endif + .macro get_thread_info reg + mov \reg, sp + andl \reg, ~(THREAD_SIZE - 1) & 0xffff + .endm + + /* Save and restore registers */ + .macro save_min sr, tmp=lr + pushm lr + mfsr \tmp, \sr + zero_fp + st.w --sp, \tmp + .endm + + .macro restore_min sr, tmp=lr + ld.w \tmp, sp++ + mtsr \sr, \tmp + popm lr + .endm + + .macro save_half sr, tmp=lr + save_fp + pushm r8-r9,r10,r11,r12,lr + zero_fp + mfsr \tmp, \sr + st.w --sp, \tmp + .endm + + .macro restore_half sr, tmp=lr + ld.w \tmp, sp++ + mtsr \sr, \tmp + popm r8-r9,r10,r11,r12,lr + restore_fp + .endm + + .macro save_full_user sr, tmp=lr + stmts --sp, r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11,r12,sp,lr + st.w --sp, lr + zero_fp + mfsr \tmp, \sr + st.w --sp, \tmp + .endm + + .macro restore_full_user sr, tmp=lr + ld.w \tmp, sp++ + mtsr \sr, \tmp + ld.w lr, sp++ + ldmts sp++, r0,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11,r12,sp,lr + .endm + + /* uaccess macros */ + .macro branch_if_kernel scratch, label + get_thread_info \scratch + ld.w \scratch, \scratch[TI_flags] + bld \scratch, TIF_USERSPACE + brcc \label + .endm + + .macro ret_if_privileged scratch, addr, size, ret + sub \scratch, \size, 1 + add \scratch, \addr + retcs \ret + retmi \ret + .endm + +#endif /* __ASM_AVR32_ASM_H__ */
diff --git a/include/asm-avr32/atomic.h b/include/asm-avr32/atomic.h new file mode 100644 index 0000000..e0b9c44 --- /dev/null +++ b/include/asm-avr32/atomic.h
@@ -0,0 +1,201 @@ +/* + * Atomic operations that C can't guarantee us. Useful for + * resource counting etc. + * + * But use these as seldom as possible since they are slower than + * regular operations. + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_ATOMIC_H +#define __ASM_AVR32_ATOMIC_H + +#include <asm/system.h> + +typedef struct { volatile int counter; } atomic_t; +#define ATOMIC_INIT(i) { (i) } + +#define atomic_read(v) ((v)->counter) +#define atomic_set(v, i) (((v)->counter) = i) + +/* + * atomic_sub_return - subtract the atomic variable + * @i: integer value to subtract + * @v: pointer of type atomic_t + * + * Atomically subtracts @i from @v. Returns the resulting value. + */ +static inline int atomic_sub_return(int i, atomic_t *v) +{ + int result; + + asm volatile( + "/* atomic_sub_return */\n" + "1: ssrf 5\n" + " ld.w %0, %2\n" + " sub %0, %3\n" + " stcond %1, %0\n" + " brne 1b" + : "=&r"(result), "=o"(v->counter) + : "m"(v->counter), "ir"(i) + : "cc"); + + return result; +} + +/* + * atomic_add_return - add integer to atomic variable + * @i: integer value to add + * @v: pointer of type atomic_t + * + * Atomically adds @i to @v. Returns the resulting value. + */ +static inline int atomic_add_return(int i, atomic_t *v) +{ + int result; + + if (__builtin_constant_p(i)) + result = atomic_sub_return(-i, v); + else + asm volatile( + "/* atomic_add_return */\n" + "1: ssrf 5\n" + " ld.w %0, %1\n" + " add %0, %3\n" + " stcond %2, %0\n" + " brne 1b" + : "=&r"(result), "=o"(v->counter) + : "m"(v->counter), "r"(i) + : "cc", "memory"); + + return result; +} + +/* + * atomic_sub_unless - sub unless the number is a given value + * @v: pointer of type atomic_t + * @a: the amount to add to v... + * @u: ...unless v is equal to u. + * + * If the atomic value v is not equal to u, this function subtracts a + * from v, and returns non zero. If v is equal to u then it returns + * zero. This is done as an atomic operation. +*/ +static inline int atomic_sub_unless(atomic_t *v, int a, int u) +{ + int tmp, result = 0; + + asm volatile( + "/* atomic_sub_unless */\n" + "1: ssrf 5\n" + " ld.w %0, %3\n" + " cp.w %0, %5\n" + " breq 1f\n" + " sub %0, %4\n" + " stcond %2, %0\n" + " brne 1b\n" + " mov %1, 1\n" + "1:" + : "=&r"(tmp), "=&r"(result), "=o"(v->counter) + : "m"(v->counter), "ir"(a), "ir"(u) + : "cc", "memory"); + + return result; +} + +/* + * atomic_add_unless - add unless the number is a given value + * @v: pointer of type atomic_t + * @a: the amount to add to v... + * @u: ...unless v is equal to u. + * + * If the atomic value v is not equal to u, this function adds a to v, + * and returns non zero. If v is equal to u then it returns zero. This + * is done as an atomic operation. +*/ +static inline int atomic_add_unless(atomic_t *v, int a, int u) +{ + int tmp, result; + + if (__builtin_constant_p(a)) + result = atomic_sub_unless(v, -a, u); + else { + result = 0; + asm volatile( + "/* atomic_add_unless */\n" + "1: ssrf 5\n" + " ld.w %0, %3\n" + " cp.w %0, %5\n" + " breq 1f\n" + " add %0, %4\n" + " stcond %2, %0\n" + " brne 1b\n" + " mov %1, 1\n" + "1:" + : "=&r"(tmp), "=&r"(result), "=o"(v->counter) + : "m"(v->counter), "r"(a), "ir"(u) + : "cc", "memory"); + } + + return result; +} + +/* + * atomic_sub_if_positive - conditionally subtract integer from atomic variable + * @i: integer value to subtract + * @v: pointer of type atomic_t + * + * Atomically test @v and subtract @i if @v is greater or equal than @i. + * The function returns the old value of @v minus @i. + */ +static inline int atomic_sub_if_positive(int i, atomic_t *v) +{ + int result; + + asm volatile( + "/* atomic_sub_if_positive */\n" + "1: ssrf 5\n" + " ld.w %0, %2\n" + " sub %0, %3\n" + " brlt 1f\n" + " stcond %1, %0\n" + " brne 1b\n" + "1:" + : "=&r"(result), "=o"(v->counter) + : "m"(v->counter), "ir"(i) + : "cc", "memory"); + + return result; +} + +#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) +#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n))) + +#define atomic_sub(i, v) (void)atomic_sub_return(i, v) +#define atomic_add(i, v) (void)atomic_add_return(i, v) +#define atomic_dec(v) atomic_sub(1, (v)) +#define atomic_inc(v) atomic_add(1, (v)) + +#define atomic_dec_return(v) atomic_sub_return(1, v) +#define atomic_inc_return(v) atomic_add_return(1, v) + +#define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0) +#define atomic_inc_and_test(v) (atomic_add_return(1, v) == 0) +#define atomic_dec_and_test(v) (atomic_sub_return(1, v) == 0) +#define atomic_add_negative(i, v) (atomic_add_return(i, v) < 0) + +#define atomic_inc_not_zero(v) atomic_add_unless(v, 1, 0) +#define atomic_dec_if_positive(v) atomic_sub_if_positive(1, v) + +#define smp_mb__before_atomic_dec() barrier() +#define smp_mb__after_atomic_dec() barrier() +#define smp_mb__before_atomic_inc() barrier() +#define smp_mb__after_atomic_inc() barrier() + +#include <asm-generic/atomic.h> + +#endif /* __ASM_AVR32_ATOMIC_H */
diff --git a/include/asm-avr32/auxvec.h b/include/asm-avr32/auxvec.h new file mode 100644 index 0000000..d5dd435 --- /dev/null +++ b/include/asm-avr32/auxvec.h
@@ -0,0 +1,4 @@ +#ifndef __ASM_AVR32_AUXVEC_H +#define __ASM_AVR32_AUXVEC_H + +#endif /* __ASM_AVR32_AUXVEC_H */
diff --git a/include/asm-avr32/bitops.h b/include/asm-avr32/bitops.h new file mode 100644 index 0000000..5299f8c --- /dev/null +++ b/include/asm-avr32/bitops.h
@@ -0,0 +1,296 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_BITOPS_H +#define __ASM_AVR32_BITOPS_H + +#include <asm/byteorder.h> +#include <asm/system.h> + +/* + * clear_bit() doesn't provide any barrier for the compiler + */ +#define smp_mb__before_clear_bit() barrier() +#define smp_mb__after_clear_bit() barrier() + +/* + * set_bit - Atomically set a bit in memory + * @nr: the bit to set + * @addr: the address to start counting from + * + * This function is atomic and may not be reordered. See __set_bit() + * if you do not require the atomic guarantees. + * + * Note that @nr may be almost arbitrarily large; this function is not + * restricted to acting on a single-word quantity. + */ +static inline void set_bit(int nr, volatile void * addr) +{ + unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG; + unsigned long tmp; + + if (__builtin_constant_p(nr)) { + asm volatile( + "1: ssrf 5\n" + " ld.w %0, %2\n" + " sbr %0, %3\n" + " stcond %1, %0\n" + " brne 1b" + : "=&r"(tmp), "=o"(*p) + : "m"(*p), "i"(nr) + : "cc"); + } else { + unsigned long mask = 1UL << (nr % BITS_PER_LONG); + asm volatile( + "1: ssrf 5\n" + " ld.w %0, %2\n" + " or %0, %3\n" + " stcond %1, %0\n" + " brne 1b" + : "=&r"(tmp), "=o"(*p) + : "m"(*p), "r"(mask) + : "cc"); + } +} + +/* + * clear_bit - Clears a bit in memory + * @nr: Bit to clear + * @addr: Address to start counting from + * + * clear_bit() is atomic and may not be reordered. However, it does + * not contain a memory barrier, so if it is used for locking purposes, + * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit() + * in order to ensure changes are visible on other processors. + */ +static inline void clear_bit(int nr, volatile void * addr) +{ + unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG; + unsigned long tmp; + + if (__builtin_constant_p(nr)) { + asm volatile( + "1: ssrf 5\n" + " ld.w %0, %2\n" + " cbr %0, %3\n" + " stcond %1, %0\n" + " brne 1b" + : "=&r"(tmp), "=o"(*p) + : "m"(*p), "i"(nr) + : "cc"); + } else { + unsigned long mask = 1UL << (nr % BITS_PER_LONG); + asm volatile( + "1: ssrf 5\n" + " ld.w %0, %2\n" + " andn %0, %3\n" + " stcond %1, %0\n" + " brne 1b" + : "=&r"(tmp), "=o"(*p) + : "m"(*p), "r"(mask) + : "cc"); + } +} + +/* + * change_bit - Toggle a bit in memory + * @nr: Bit to change + * @addr: Address to start counting from + * + * change_bit() is atomic and may not be reordered. + * Note that @nr may be almost arbitrarily large; this function is not + * restricted to acting on a single-word quantity. + */ +static inline void change_bit(int nr, volatile void * addr) +{ + unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG; + unsigned long mask = 1UL << (nr % BITS_PER_LONG); + unsigned long tmp; + + asm volatile( + "1: ssrf 5\n" + " ld.w %0, %2\n" + " eor %0, %3\n" + " stcond %1, %0\n" + " brne 1b" + : "=&r"(tmp), "=o"(*p) + : "m"(*p), "r"(mask) + : "cc"); +} + +/* + * test_and_set_bit - Set a bit and return its old value + * @nr: Bit to set + * @addr: Address to count from + * + * This operation is atomic and cannot be reordered. + * It also implies a memory barrier. + */ +static inline int test_and_set_bit(int nr, volatile void * addr) +{ + unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG; + unsigned long mask = 1UL << (nr % BITS_PER_LONG); + unsigned long tmp, old; + + if (__builtin_constant_p(nr)) { + asm volatile( + "1: ssrf 5\n" + " ld.w %0, %3\n" + " mov %2, %0\n" + " sbr %0, %4\n" + " stcond %1, %0\n" + " brne 1b" + : "=&r"(tmp), "=o"(*p), "=&r"(old) + : "m"(*p), "i"(nr) + : "memory", "cc"); + } else { + asm volatile( + "1: ssrf 5\n" + " ld.w %2, %3\n" + " or %0, %2, %4\n" + " stcond %1, %0\n" + " brne 1b" + : "=&r"(tmp), "=o"(*p), "=&r"(old) + : "m"(*p), "r"(mask) + : "memory", "cc"); + } + + return (old & mask) != 0; +} + +/* + * test_and_clear_bit - Clear a bit and return its old value + * @nr: Bit to clear + * @addr: Address to count from + * + * This operation is atomic and cannot be reordered. + * It also implies a memory barrier. + */ +static inline int test_and_clear_bit(int nr, volatile void * addr) +{ + unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG; + unsigned long mask = 1UL << (nr % BITS_PER_LONG); + unsigned long tmp, old; + + if (__builtin_constant_p(nr)) { + asm volatile( + "1: ssrf 5\n" + " ld.w %0, %3\n" + " mov %2, %0\n" + " cbr %0, %4\n" + " stcond %1, %0\n" + " brne 1b" + : "=&r"(tmp), "=o"(*p), "=&r"(old) + : "m"(*p), "i"(nr) + : "memory", "cc"); + } else { + asm volatile( + "1: ssrf 5\n" + " ld.w %0, %3\n" + " mov %2, %0\n" + " andn %0, %4\n" + " stcond %1, %0\n" + " brne 1b" + : "=&r"(tmp), "=o"(*p), "=&r"(old) + : "m"(*p), "r"(mask) + : "memory", "cc"); + } + + return (old & mask) != 0; +} + +/* + * test_and_change_bit - Change a bit and return its old value + * @nr: Bit to change + * @addr: Address to count from + * + * This operation is atomic and cannot be reordered. + * It also implies a memory barrier. + */ +static inline int test_and_change_bit(int nr, volatile void * addr) +{ + unsigned long *p = ((unsigned long *)addr) + nr / BITS_PER_LONG; + unsigned long mask = 1UL << (nr % BITS_PER_LONG); + unsigned long tmp, old; + + asm volatile( + "1: ssrf 5\n" + " ld.w %2, %3\n" + " eor %0, %2, %4\n" + " stcond %1, %0\n" + " brne 1b" + : "=&r"(tmp), "=o"(*p), "=&r"(old) + : "m"(*p), "r"(mask) + : "memory", "cc"); + + return (old & mask) != 0; +} + +#include <asm-generic/bitops/non-atomic.h> + +/* Find First bit Set */ +static inline unsigned long __ffs(unsigned long word) +{ + unsigned long result; + + asm("brev %1\n\t" + "clz %0,%1" + : "=r"(result), "=&r"(word) + : "1"(word)); + return result; +} + +/* Find First Zero */ +static inline unsigned long ffz(unsigned long word) +{ + return __ffs(~word); +} + +/* Find Last bit Set */ +static inline int fls(unsigned long word) +{ + unsigned long result; + + asm("clz %0,%1" : "=r"(result) : "r"(word)); + return 32 - result; +} + +unsigned long find_first_zero_bit(const unsigned long *addr, + unsigned long size); +unsigned long find_next_zero_bit(const unsigned long *addr, + unsigned long size, + unsigned long offset); +unsigned long find_first_bit(const unsigned long *addr, + unsigned long size); +unsigned long find_next_bit(const unsigned long *addr, + unsigned long size, + unsigned long offset); + +/* + * ffs: find first bit set. This is defined the same way as + * the libc and compiler builtin ffs routines, therefore + * differs in spirit from the above ffz (man ffs). + * + * The difference is that bit numbering starts at 1, and if no bit is set, + * the function returns 0. + */ +static inline int ffs(unsigned long word) +{ + if(word == 0) + return 0; + return __ffs(word) + 1; +} + +#include <asm-generic/bitops/fls64.h> +#include <asm-generic/bitops/sched.h> +#include <asm-generic/bitops/hweight.h> + +#include <asm-generic/bitops/ext2-non-atomic.h> +#include <asm-generic/bitops/ext2-atomic.h> +#include <asm-generic/bitops/minix-le.h> + +#endif /* __ASM_AVR32_BITOPS_H */
diff --git a/include/asm-avr32/bug.h b/include/asm-avr32/bug.h new file mode 100644 index 0000000..521766b --- /dev/null +++ b/include/asm-avr32/bug.h
@@ -0,0 +1,47 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_BUG_H +#define __ASM_AVR32_BUG_H + +#ifdef CONFIG_BUG + +/* + * According to our Chief Architect, this compact opcode is very + * unlikely to ever be implemented. + */ +#define AVR32_BUG_OPCODE 0x5df0 + +#ifdef CONFIG_DEBUG_BUGVERBOSE + +#define BUG() \ + do { \ + asm volatile(".hword %0\n\t" \ + ".hword %1\n\t" \ + ".long %2" \ + : \ + : "n"(AVR32_BUG_OPCODE), \ + "i"(__LINE__), "X"(__FILE__)); \ + } while (0) + +#else + +#define BUG() \ + do { \ + asm volatile(".hword %0\n\t" \ + : : "n"(AVR32_BUG_OPCODE)); \ + } while (0) + +#endif /* CONFIG_DEBUG_BUGVERBOSE */ + +#define HAVE_ARCH_BUG + +#endif /* CONFIG_BUG */ + +#include <asm-generic/bug.h> + +#endif /* __ASM_AVR32_BUG_H */
diff --git a/include/asm-avr32/bugs.h b/include/asm-avr32/bugs.h new file mode 100644 index 0000000..7635e77 --- /dev/null +++ b/include/asm-avr32/bugs.h
@@ -0,0 +1,15 @@ +/* + * This is included by init/main.c to check for architecture-dependent bugs. + * + * Needs: + * void check_bugs(void); + */ +#ifndef __ASM_AVR32_BUGS_H +#define __ASM_AVR32_BUGS_H + +static void __init check_bugs(void) +{ + cpu_data->loops_per_jiffy = loops_per_jiffy; +} + +#endif /* __ASM_AVR32_BUGS_H */
diff --git a/include/asm-avr32/byteorder.h b/include/asm-avr32/byteorder.h new file mode 100644 index 0000000..402ff41 --- /dev/null +++ b/include/asm-avr32/byteorder.h
@@ -0,0 +1,25 @@ +/* + * AVR32 endian-conversion functions. + */ +#ifndef __ASM_AVR32_BYTEORDER_H +#define __ASM_AVR32_BYTEORDER_H + +#include <asm/types.h> +#include <linux/compiler.h> + +#ifdef __CHECKER__ +extern unsigned long __builtin_bswap_32(unsigned long x); +extern unsigned short __builtin_bswap_16(unsigned short x); +#endif + +#define __arch__swab32(x) __builtin_bswap_32(x) +#define __arch__swab16(x) __builtin_bswap_16(x) + +#if !defined(__STRICT_ANSI__) || defined(__KERNEL__) +# define __BYTEORDER_HAS_U64__ +# define __SWAB_64_THRU_32__ +#endif + +#include <linux/byteorder/big_endian.h> + +#endif /* __ASM_AVR32_BYTEORDER_H */
diff --git a/include/asm-avr32/cache.h b/include/asm-avr32/cache.h new file mode 100644 index 0000000..dabb955 --- /dev/null +++ b/include/asm-avr32/cache.h
@@ -0,0 +1,29 @@ +#ifndef __ASM_AVR32_CACHE_H +#define __ASM_AVR32_CACHE_H + +#define L1_CACHE_SHIFT 5 +#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) + +#ifndef __ASSEMBLER__ +struct cache_info { + unsigned int ways; + unsigned int sets; + unsigned int linesz; +}; +#endif /* __ASSEMBLER */ + +/* Cache operation constants */ +#define ICACHE_FLUSH 0x00 +#define ICACHE_INVALIDATE 0x01 +#define ICACHE_LOCK 0x02 +#define ICACHE_UNLOCK 0x03 +#define ICACHE_PREFETCH 0x04 + +#define DCACHE_FLUSH 0x08 +#define DCACHE_LOCK 0x09 +#define DCACHE_UNLOCK 0x0a +#define DCACHE_INVALIDATE 0x0b +#define DCACHE_CLEAN 0x0c +#define DCACHE_CLEAN_INVAL 0x0d + +#endif /* __ASM_AVR32_CACHE_H */
diff --git a/include/asm-avr32/cachectl.h b/include/asm-avr32/cachectl.h new file mode 100644 index 0000000..4faf1ce --- /dev/null +++ b/include/asm-avr32/cachectl.h
@@ -0,0 +1,11 @@ +#ifndef __ASM_AVR32_CACHECTL_H +#define __ASM_AVR32_CACHECTL_H + +/* + * Operations that can be performed through the cacheflush system call + */ + +/* Clean the data cache, then invalidate the icache */ +#define CACHE_IFLUSH 0 + +#endif /* __ASM_AVR32_CACHECTL_H */
diff --git a/include/asm-avr32/cacheflush.h b/include/asm-avr32/cacheflush.h new file mode 100644 index 0000000..f1bf170 --- /dev/null +++ b/include/asm-avr32/cacheflush.h
@@ -0,0 +1,129 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_CACHEFLUSH_H +#define __ASM_AVR32_CACHEFLUSH_H + +/* Keep includes the same across arches. */ +#include <linux/mm.h> + +#define CACHE_OP_ICACHE_INVALIDATE 0x01 +#define CACHE_OP_DCACHE_INVALIDATE 0x0b +#define CACHE_OP_DCACHE_CLEAN 0x0c +#define CACHE_OP_DCACHE_CLEAN_INVAL 0x0d + +/* + * Invalidate any cacheline containing virtual address vaddr without + * writing anything back to memory. + * + * Note that this function may corrupt unrelated data structures when + * applied on buffers that are not cacheline aligned in both ends. + */ +static inline void invalidate_dcache_line(void *vaddr) +{ + asm volatile("cache %0[0], %1" + : + : "r"(vaddr), "n"(CACHE_OP_DCACHE_INVALIDATE) + : "memory"); +} + +/* + * Make sure any cacheline containing virtual address vaddr is written + * to memory. + */ +static inline void clean_dcache_line(void *vaddr) +{ + asm volatile("cache %0[0], %1" + : + : "r"(vaddr), "n"(CACHE_OP_DCACHE_CLEAN) + : "memory"); +} + +/* + * Make sure any cacheline containing virtual address vaddr is written + * to memory and then invalidate it. + */ +static inline void flush_dcache_line(void *vaddr) +{ + asm volatile("cache %0[0], %1" + : + : "r"(vaddr), "n"(CACHE_OP_DCACHE_CLEAN_INVAL) + : "memory"); +} + +/* + * Invalidate any instruction cacheline containing virtual address + * vaddr. + */ +static inline void invalidate_icache_line(void *vaddr) +{ + asm volatile("cache %0[0], %1" + : + : "r"(vaddr), "n"(CACHE_OP_ICACHE_INVALIDATE) + : "memory"); +} + +/* + * Applies the above functions on all lines that are touched by the + * specified virtual address range. + */ +void invalidate_dcache_region(void *start, size_t len); +void clean_dcache_region(void *start, size_t len); +void flush_dcache_region(void *start, size_t len); +void invalidate_icache_region(void *start, size_t len); + +/* + * Make sure any pending writes are completed before continuing. + */ +#define flush_write_buffer() asm volatile("sync 0" : : : "memory") + +/* + * The following functions are called when a virtual mapping changes. + * We do not need to flush anything in this case. + */ +#define flush_cache_all() do { } while (0) +#define flush_cache_mm(mm) do { } while (0) +#define flush_cache_range(vma, start, end) do { } while (0) +#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) +#define flush_cache_vmap(start, end) do { } while (0) +#define flush_cache_vunmap(start, end) do { } while (0) + +/* + * I think we need to implement this one to be able to reliably + * execute pages from RAMDISK. However, if we implement the + * flush_dcache_*() functions, it might not be needed anymore. + * + * #define flush_icache_page(vma, page) do { } while (0) + */ +extern void flush_icache_page(struct vm_area_struct *vma, struct page *page); + +/* + * These are (I think) related to D-cache aliasing. We might need to + * do something here, but only for certain configurations. No such + * configurations exist at this time. + */ +#define flush_dcache_page(page) do { } while (0) +#define flush_dcache_mmap_lock(page) do { } while (0) +#define flush_dcache_mmap_unlock(page) do { } while (0) + +/* + * These are for I/D cache coherency. In this case, we do need to + * flush with all configurations. + */ +extern void flush_icache_range(unsigned long start, unsigned long end); +extern void flush_icache_user_range(struct vm_area_struct *vma, + struct page *page, + unsigned long addr, int len); + +#define copy_to_user_page(vma, page, vaddr, dst, src, len) do { \ + memcpy(dst, src, len); \ + flush_icache_user_range(vma, page, vaddr, len); \ +} while(0) +#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ + memcpy(dst, src, len) + +#endif /* __ASM_AVR32_CACHEFLUSH_H */
diff --git a/include/asm-avr32/checksum.h b/include/asm-avr32/checksum.h new file mode 100644 index 0000000..41b7af0 --- /dev/null +++ b/include/asm-avr32/checksum.h
@@ -0,0 +1,156 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_CHECKSUM_H +#define __ASM_AVR32_CHECKSUM_H + +/* + * computes the checksum of a memory block at buff, length len, + * and adds in "sum" (32-bit) + * + * returns a 32-bit number suitable for feeding into itself + * or csum_tcpudp_magic + * + * this function must be called with even lengths, except + * for the last fragment, which may be odd + * + * it's best to have buff aligned on a 32-bit boundary + */ +unsigned int csum_partial(const unsigned char * buff, int len, + unsigned int sum); + +/* + * the same as csum_partial, but copies from src while it + * checksums, and handles user-space pointer exceptions correctly, when needed. + * + * here even more important to align src and dst on a 32-bit (or even + * better 64-bit) boundary + */ +unsigned int csum_partial_copy_generic(const char *src, char *dst, int len, + int sum, int *src_err_ptr, + int *dst_err_ptr); + +/* + * Note: when you get a NULL pointer exception here this means someone + * passed in an incorrect kernel address to one of these functions. + * + * If you use these functions directly please don't forget the + * verify_area(). + */ +static inline +unsigned int csum_partial_copy_nocheck(const char *src, char *dst, + int len, int sum) +{ + return csum_partial_copy_generic(src, dst, len, sum, NULL, NULL); +} + +static inline +unsigned int csum_partial_copy_from_user (const char __user *src, char *dst, + int len, int sum, int *err_ptr) +{ + return csum_partial_copy_generic((const char __force *)src, dst, len, + sum, err_ptr, NULL); +} + +/* + * This is a version of ip_compute_csum() optimized for IP headers, + * which always checksum on 4 octet boundaries. + */ +static inline unsigned short ip_fast_csum(unsigned char *iph, + unsigned int ihl) +{ + unsigned int sum, tmp; + + __asm__ __volatile__( + " ld.w %0, %1++\n" + " ld.w %3, %1++\n" + " sub %2, 4\n" + " add %0, %3\n" + " ld.w %3, %1++\n" + " adc %0, %0, %3\n" + " ld.w %3, %1++\n" + " adc %0, %0, %3\n" + " acr %0\n" + "1: ld.w %3, %1++\n" + " add %0, %3\n" + " acr %0\n" + " sub %2, 1\n" + " brne 1b\n" + " lsl %3, %0, 16\n" + " andl %0, 0\n" + " mov %2, 0xffff\n" + " add %0, %3\n" + " adc %0, %0, %2\n" + " com %0\n" + " lsr %0, 16\n" + : "=r"(sum), "=r"(iph), "=r"(ihl), "=r"(tmp) + : "1"(iph), "2"(ihl) + : "memory", "cc"); + return sum; +} + +/* + * Fold a partial checksum + */ + +static inline unsigned int csum_fold(unsigned int sum) +{ + unsigned int tmp; + + asm(" bfextu %1, %0, 0, 16\n" + " lsr %0, 16\n" + " add %0, %1\n" + " bfextu %1, %0, 16, 16\n" + " add %0, %1" + : "=&r"(sum), "=&r"(tmp) + : "0"(sum)); + + return ~sum; +} + +static inline unsigned long csum_tcpudp_nofold(unsigned long saddr, + unsigned long daddr, + unsigned short len, + unsigned short proto, + unsigned int sum) +{ + asm(" add %0, %1\n" + " adc %0, %0, %2\n" + " adc %0, %0, %3\n" + " acr %0" + : "=r"(sum) + : "r"(daddr), "r"(saddr), "r"(ntohs(len) | (proto << 16)), + "0"(sum) + : "cc"); + + return sum; +} + +/* + * computes the checksum of the TCP/UDP pseudo-header + * returns a 16-bit checksum, already complemented + */ +static inline unsigned short int csum_tcpudp_magic(unsigned long saddr, + unsigned long daddr, + unsigned short len, + unsigned short proto, + unsigned int sum) +{ + return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); +} + +/* + * this routine is used for miscellaneous IP-like checksums, mainly + * in icmp.c + */ + +static inline unsigned short ip_compute_csum(unsigned char * buff, int len) +{ + return csum_fold(csum_partial(buff, len, 0)); +} + +#endif /* __ASM_AVR32_CHECKSUM_H */
diff --git a/include/asm-avr32/cputime.h b/include/asm-avr32/cputime.h new file mode 100644 index 0000000..e87e0f8 --- /dev/null +++ b/include/asm-avr32/cputime.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_CPUTIME_H +#define __ASM_AVR32_CPUTIME_H + +#include <asm-generic/cputime.h> + +#endif /* __ASM_AVR32_CPUTIME_H */
diff --git a/include/asm-avr32/current.h b/include/asm-avr32/current.h new file mode 100644 index 0000000..c7b0549 --- /dev/null +++ b/include/asm-avr32/current.h
@@ -0,0 +1,15 @@ +#ifndef __ASM_AVR32_CURRENT_H +#define __ASM_AVR32_CURRENT_H + +#include <linux/thread_info.h> + +struct task_struct; + +inline static struct task_struct * get_current(void) +{ + return current_thread_info()->task; +} + +#define current get_current() + +#endif /* __ASM_AVR32_CURRENT_H */
diff --git a/include/asm-avr32/delay.h b/include/asm-avr32/delay.h new file mode 100644 index 0000000..cc3b2e3 --- /dev/null +++ b/include/asm-avr32/delay.h
@@ -0,0 +1,26 @@ +#ifndef __ASM_AVR32_DELAY_H +#define __ASM_AVR32_DELAY_H + +/* + * Copyright (C) 1993 Linus Torvalds + * + * Delay routines calling functions in arch/avr32/lib/delay.c + */ + +extern void __bad_udelay(void); +extern void __bad_ndelay(void); + +extern void __udelay(unsigned long usecs); +extern void __ndelay(unsigned long nsecs); +extern void __const_udelay(unsigned long usecs); +extern void __delay(unsigned long loops); + +#define udelay(n) (__builtin_constant_p(n) ? \ + ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c6ul)) : \ + __udelay(n)) + +#define ndelay(n) (__builtin_constant_p(n) ? \ + ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \ + __ndelay(n)) + +#endif /* __ASM_AVR32_DELAY_H */
diff --git a/include/asm-avr32/div64.h b/include/asm-avr32/div64.h new file mode 100644 index 0000000..d7ddd4f --- /dev/null +++ b/include/asm-avr32/div64.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_DIV64_H +#define __ASM_AVR32_DIV64_H + +#include <asm-generic/div64.h> + +#endif /* __ASM_AVR32_DIV64_H */
diff --git a/include/asm-avr32/dma-mapping.h b/include/asm-avr32/dma-mapping.h new file mode 100644 index 0000000..4c40cb4 --- /dev/null +++ b/include/asm-avr32/dma-mapping.h
@@ -0,0 +1,320 @@ +#ifndef __ASM_AVR32_DMA_MAPPING_H +#define __ASM_AVR32_DMA_MAPPING_H + +#include <linux/mm.h> +#include <linux/device.h> +#include <asm/scatterlist.h> +#include <asm/processor.h> +#include <asm/cacheflush.h> +#include <asm/io.h> + +extern void dma_cache_sync(void *vaddr, size_t size, int direction); + +/* + * Return whether the given device DMA address mask can be supported + * properly. For example, if your device can only drive the low 24-bits + * during bus mastering, then you would pass 0x00ffffff as the mask + * to this function. + */ +static inline int dma_supported(struct device *dev, u64 mask) +{ + /* Fix when needed. I really don't know of any limitations */ + return 1; +} + +static inline int dma_set_mask(struct device *dev, u64 dma_mask) +{ + if (!dev->dma_mask || !dma_supported(dev, dma_mask)) + return -EIO; + + *dev->dma_mask = dma_mask; + return 0; +} + +/** + * dma_alloc_coherent - allocate consistent memory for DMA + * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices + * @size: required memory size + * @handle: bus-specific DMA address + * + * Allocate some uncached, unbuffered memory for a device for + * performing DMA. This function allocates pages, and will + * return the CPU-viewed address, and sets @handle to be the + * device-viewed address. + */ +extern void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *handle, gfp_t gfp); + +/** + * dma_free_coherent - free memory allocated by dma_alloc_coherent + * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices + * @size: size of memory originally requested in dma_alloc_coherent + * @cpu_addr: CPU-view address returned from dma_alloc_coherent + * @handle: device-view address returned from dma_alloc_coherent + * + * Free (and unmap) a DMA buffer previously allocated by + * dma_alloc_coherent(). + * + * References to memory and mappings associated with cpu_addr/handle + * during and after this call executing are illegal. + */ +extern void dma_free_coherent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t handle); + +/** + * dma_alloc_writecombine - allocate write-combining memory for DMA + * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices + * @size: required memory size + * @handle: bus-specific DMA address + * + * Allocate some uncached, buffered memory for a device for + * performing DMA. This function allocates pages, and will + * return the CPU-viewed address, and sets @handle to be the + * device-viewed address. + */ +extern void *dma_alloc_writecombine(struct device *dev, size_t size, + dma_addr_t *handle, gfp_t gfp); + +/** + * dma_free_coherent - free memory allocated by dma_alloc_writecombine + * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices + * @size: size of memory originally requested in dma_alloc_writecombine + * @cpu_addr: CPU-view address returned from dma_alloc_writecombine + * @handle: device-view address returned from dma_alloc_writecombine + * + * Free (and unmap) a DMA buffer previously allocated by + * dma_alloc_writecombine(). + * + * References to memory and mappings associated with cpu_addr/handle + * during and after this call executing are illegal. + */ +extern void dma_free_writecombine(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t handle); + +/** + * dma_map_single - map a single buffer for streaming DMA + * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices + * @cpu_addr: CPU direct mapped address of buffer + * @size: size of buffer to map + * @dir: DMA transfer direction + * + * Ensure that any data held in the cache is appropriately discarded + * or written back. + * + * The device owns this memory once this call has completed. The CPU + * can regain ownership by calling dma_unmap_single() or dma_sync_single(). + */ +static inline dma_addr_t +dma_map_single(struct device *dev, void *cpu_addr, size_t size, + enum dma_data_direction direction) +{ + dma_cache_sync(cpu_addr, size, direction); + return virt_to_bus(cpu_addr); +} + +/** + * dma_unmap_single - unmap a single buffer previously mapped + * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices + * @handle: DMA address of buffer + * @size: size of buffer to map + * @dir: DMA transfer direction + * + * Unmap a single streaming mode DMA translation. The handle and size + * must match what was provided in the previous dma_map_single() call. + * All other usages are undefined. + * + * After this call, reads by the CPU to the buffer are guaranteed to see + * whatever the device wrote there. + */ +static inline void +dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, + enum dma_data_direction direction) +{ + +} + +/** + * dma_map_page - map a portion of a page for streaming DMA + * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices + * @page: page that buffer resides in + * @offset: offset into page for start of buffer + * @size: size of buffer to map + * @dir: DMA transfer direction + * + * Ensure that any data held in the cache is appropriately discarded + * or written back. + * + * The device owns this memory once this call has completed. The CPU + * can regain ownership by calling dma_unmap_page() or dma_sync_single(). + */ +static inline dma_addr_t +dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction direction) +{ + return dma_map_single(dev, page_address(page) + offset, + size, direction); +} + +/** + * dma_unmap_page - unmap a buffer previously mapped through dma_map_page() + * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices + * @handle: DMA address of buffer + * @size: size of buffer to map + * @dir: DMA transfer direction + * + * Unmap a single streaming mode DMA translation. The handle and size + * must match what was provided in the previous dma_map_single() call. + * All other usages are undefined. + * + * After this call, reads by the CPU to the buffer are guaranteed to see + * whatever the device wrote there. + */ +static inline void +dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, + enum dma_data_direction direction) +{ + dma_unmap_single(dev, dma_address, size, direction); +} + +/** + * dma_map_sg - map a set of SG buffers for streaming mode DMA + * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices + * @sg: list of buffers + * @nents: number of buffers to map + * @dir: DMA transfer direction + * + * Map a set of buffers described by scatterlist in streaming + * mode for DMA. This is the scatter-gather version of the + * above pci_map_single interface. Here the scatter gather list + * elements are each tagged with the appropriate dma address + * and length. They are obtained via sg_dma_{address,length}(SG). + * + * NOTE: An implementation may be able to use a smaller number of + * DMA address/length pairs than there are SG table elements. + * (for example via virtual mapping capabilities) + * The routine returns the number of addr/length pairs actually + * used, at most nents. + * + * Device ownership issues as mentioned above for pci_map_single are + * the same here. + */ +static inline int +dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction direction) +{ + int i; + + for (i = 0; i < nents; i++) { + char *virt; + + sg[i].dma_address = page_to_bus(sg[i].page) + sg[i].offset; + virt = page_address(sg[i].page) + sg[i].offset; + dma_cache_sync(virt, sg[i].length, direction); + } + + return nents; +} + +/** + * dma_unmap_sg - unmap a set of SG buffers mapped by dma_map_sg + * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices + * @sg: list of buffers + * @nents: number of buffers to map + * @dir: DMA transfer direction + * + * Unmap a set of streaming mode DMA translations. + * Again, CPU read rules concerning calls here are the same as for + * pci_unmap_single() above. + */ +static inline void +dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, + enum dma_data_direction direction) +{ + +} + +/** + * dma_sync_single_for_cpu + * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices + * @handle: DMA address of buffer + * @size: size of buffer to map + * @dir: DMA transfer direction + * + * Make physical memory consistent for a single streaming mode DMA + * translation after a transfer. + * + * If you perform a dma_map_single() but wish to interrogate the + * buffer using the cpu, yet do not wish to teardown the DMA mapping, + * you must call this function before doing so. At the next point you + * give the DMA address back to the card, you must first perform a + * dma_sync_single_for_device, and then the device again owns the + * buffer. + */ +static inline void +dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, + size_t size, enum dma_data_direction direction) +{ + dma_cache_sync(bus_to_virt(dma_handle), size, direction); +} + +static inline void +dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, + size_t size, enum dma_data_direction direction) +{ + dma_cache_sync(bus_to_virt(dma_handle), size, direction); +} + +/** + * dma_sync_sg_for_cpu + * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices + * @sg: list of buffers + * @nents: number of buffers to map + * @dir: DMA transfer direction + * + * Make physical memory consistent for a set of streaming + * mode DMA translations after a transfer. + * + * The same as dma_sync_single_for_* but for a scatter-gather list, + * same rules and usage. + */ +static inline void +dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction) +{ + int i; + + for (i = 0; i < nents; i++) { + dma_cache_sync(page_address(sg[i].page) + sg[i].offset, + sg[i].length, direction); + } +} + +static inline void +dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction direction) +{ + int i; + + for (i = 0; i < nents; i++) { + dma_cache_sync(page_address(sg[i].page) + sg[i].offset, + sg[i].length, direction); + } +} + +/* Now for the API extensions over the pci_ one */ + +#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) +#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) + +static inline int dma_is_consistent(dma_addr_t dma_addr) +{ + return 1; +} + +static inline int dma_get_cache_alignment(void) +{ + return boot_cpu_data.dcache.linesz; +} + +#endif /* __ASM_AVR32_DMA_MAPPING_H */
diff --git a/include/asm-avr32/dma.h b/include/asm-avr32/dma.h new file mode 100644 index 0000000..9e91205 --- /dev/null +++ b/include/asm-avr32/dma.h
@@ -0,0 +1,8 @@ +#ifndef __ASM_AVR32_DMA_H +#define __ASM_AVR32_DMA_H + +/* The maximum address that we can perform a DMA transfer to on this platform. + * Not really applicable to AVR32, but some functions need it. */ +#define MAX_DMA_ADDRESS 0xffffffff + +#endif /* __ASM_AVR32_DMA_H */
diff --git a/include/asm-avr32/elf.h b/include/asm-avr32/elf.h new file mode 100644 index 0000000..d334b49 --- /dev/null +++ b/include/asm-avr32/elf.h
@@ -0,0 +1,110 @@ +#ifndef __ASM_AVR32_ELF_H +#define __ASM_AVR32_ELF_H + +/* AVR32 relocation numbers */ +#define R_AVR32_NONE 0 +#define R_AVR32_32 1 +#define R_AVR32_16 2 +#define R_AVR32_8 3 +#define R_AVR32_32_PCREL 4 +#define R_AVR32_16_PCREL 5 +#define R_AVR32_8_PCREL 6 +#define R_AVR32_DIFF32 7 +#define R_AVR32_DIFF16 8 +#define R_AVR32_DIFF8 9 +#define R_AVR32_GOT32 10 +#define R_AVR32_GOT16 11 +#define R_AVR32_GOT8 12 +#define R_AVR32_21S 13 +#define R_AVR32_16U 14 +#define R_AVR32_16S 15 +#define R_AVR32_8S 16 +#define R_AVR32_8S_EXT 17 +#define R_AVR32_22H_PCREL 18 +#define R_AVR32_18W_PCREL 19 +#define R_AVR32_16B_PCREL 20 +#define R_AVR32_16N_PCREL 21 +#define R_AVR32_14UW_PCREL 22 +#define R_AVR32_11H_PCREL 23 +#define R_AVR32_10UW_PCREL 24 +#define R_AVR32_9H_PCREL 25 +#define R_AVR32_9UW_PCREL 26 +#define R_AVR32_HI16 27 +#define R_AVR32_LO16 28 +#define R_AVR32_GOTPC 29 +#define R_AVR32_GOTCALL 30 +#define R_AVR32_LDA_GOT 31 +#define R_AVR32_GOT21S 32 +#define R_AVR32_GOT18SW 33 +#define R_AVR32_GOT16S 34 +#define R_AVR32_GOT7UW 35 +#define R_AVR32_32_CPENT 36 +#define R_AVR32_CPCALL 37 +#define R_AVR32_16_CP 38 +#define R_AVR32_9W_CP 39 +#define R_AVR32_RELATIVE 40 +#define R_AVR32_GLOB_DAT 41 +#define R_AVR32_JMP_SLOT 42 +#define R_AVR32_ALIGN 43 + +/* + * ELF register definitions.. + */ + +#include <asm/ptrace.h> +#include <asm/user.h> + +typedef unsigned long elf_greg_t; + +#define ELF_NGREG (sizeof (struct pt_regs) / sizeof (elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +typedef struct user_fpu_struct elf_fpregset_t; + +/* + * This is used to ensure we don't load something for the wrong architecture. + */ +#define elf_check_arch(x) ( (x)->e_machine == EM_AVR32 ) + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_CLASS ELFCLASS32 +#ifdef __LITTLE_ENDIAN__ +#define ELF_DATA ELFDATA2LSB +#else +#define ELF_DATA ELFDATA2MSB +#endif +#define ELF_ARCH EM_AVR32 + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE 4096 + +/* This is the location that an ET_DYN program is loaded if exec'ed. Typical + use of this is to invoke "./ld.so someprog" to test out a new version of + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + +#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) + + +/* This yields a mask that user programs can use to figure out what + instruction set this CPU supports. This could be done in user space, + but it's not easy, and we've already done it here. */ + +#define ELF_HWCAP (0) + +/* This yields a string that ld.so will use to load implementation + specific libraries for optimization. This is more specific in + intent than poking at uname or /proc/cpuinfo. + + For the moment, we have only optimizations for the Intel generations, + but that could change... */ + +#define ELF_PLATFORM (NULL) + +#ifdef __KERNEL__ +#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT) +#endif + +#endif /* __ASM_AVR32_ELF_H */
diff --git a/include/asm-avr32/emergency-restart.h b/include/asm-avr32/emergency-restart.h new file mode 100644 index 0000000..3e7e014 --- /dev/null +++ b/include/asm-avr32/emergency-restart.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_EMERGENCY_RESTART_H +#define __ASM_AVR32_EMERGENCY_RESTART_H + +#include <asm-generic/emergency-restart.h> + +#endif /* __ASM_AVR32_EMERGENCY_RESTART_H */
diff --git a/include/asm-avr32/errno.h b/include/asm-avr32/errno.h new file mode 100644 index 0000000..558a724 --- /dev/null +++ b/include/asm-avr32/errno.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_ERRNO_H +#define __ASM_AVR32_ERRNO_H + +#include <asm-generic/errno.h> + +#endif /* __ASM_AVR32_ERRNO_H */
diff --git a/include/asm-avr32/fcntl.h b/include/asm-avr32/fcntl.h new file mode 100644 index 0000000..14c0c44 --- /dev/null +++ b/include/asm-avr32/fcntl.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_FCNTL_H +#define __ASM_AVR32_FCNTL_H + +#include <asm-generic/fcntl.h> + +#endif /* __ASM_AVR32_FCNTL_H */
diff --git a/include/asm-avr32/futex.h b/include/asm-avr32/futex.h new file mode 100644 index 0000000..10419f1 --- /dev/null +++ b/include/asm-avr32/futex.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_FUTEX_H +#define __ASM_AVR32_FUTEX_H + +#include <asm-generic/futex.h> + +#endif /* __ASM_AVR32_FUTEX_H */
diff --git a/include/asm-avr32/hardirq.h b/include/asm-avr32/hardirq.h new file mode 100644 index 0000000..2673543 --- /dev/null +++ b/include/asm-avr32/hardirq.h
@@ -0,0 +1,34 @@ +#ifndef __ASM_AVR32_HARDIRQ_H +#define __ASM_AVR32_HARDIRQ_H + +#include <linux/threads.h> +#include <asm/irq.h> + +#ifndef __ASSEMBLY__ + +#include <linux/cache.h> + +/* entry.S is sensitive to the offsets of these fields */ +typedef struct { + unsigned int __softirq_pending; +} ____cacheline_aligned irq_cpustat_t; + +void ack_bad_irq(unsigned int irq); + +/* Standard mappings for irq_cpustat_t above */ +#include <linux/irq_cpustat.h> + +#endif /* __ASSEMBLY__ */ + +#define HARDIRQ_BITS 12 + +/* + * The hardirq mask has to be large enough to have + * space for potentially all IRQ sources in the system + * nesting on a single CPU: + */ +#if (1 << HARDIRQ_BITS) < NR_IRQS +# error HARDIRQ_BITS is too low! +#endif + +#endif /* __ASM_AVR32_HARDIRQ_H */
diff --git a/include/asm-avr32/hw_irq.h b/include/asm-avr32/hw_irq.h new file mode 100644 index 0000000..218b0a6 --- /dev/null +++ b/include/asm-avr32/hw_irq.h
@@ -0,0 +1,9 @@ +#ifndef __ASM_AVR32_HW_IRQ_H +#define __ASM_AVR32_HW_IRQ_H + +static inline void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i) +{ + /* Nothing to do */ +} + +#endif /* __ASM_AVR32_HW_IRQ_H */
diff --git a/include/asm-avr32/intc.h b/include/asm-avr32/intc.h new file mode 100644 index 0000000..1ac9ca7 --- /dev/null +++ b/include/asm-avr32/intc.h
@@ -0,0 +1,128 @@ +#ifndef __ASM_AVR32_INTC_H +#define __ASM_AVR32_INTC_H + +#include <linux/sysdev.h> +#include <linux/interrupt.h> + +struct irq_controller; +struct irqaction; +struct pt_regs; + +struct platform_device; + +/* Information about the internal interrupt controller */ +struct intc_device { + /* ioremapped address of configuration block */ + void __iomem *regs; + + /* the physical device */ + struct platform_device *pdev; + + /* Number of interrupt lines per group. */ + unsigned int irqs_per_group; + + /* The highest group ID + 1 */ + unsigned int nr_groups; + + /* + * Bitfield indicating which groups are actually in use. The + * size of the array is + * ceil(group_max / (8 * sizeof(unsigned int))). + */ + unsigned int group_mask[]; +}; + +struct irq_controller_class { + /* + * A short name identifying this kind of controller. + */ + const char *typename; + /* + * Handle the IRQ. Must do any necessary acking and masking. + */ + irqreturn_t (*handle)(int irq, void *dev_id, struct pt_regs *regs); + /* + * Register a new IRQ handler. + */ + int (*setup)(struct irq_controller *ctrl, unsigned int irq, + struct irqaction *action); + /* + * Unregister a IRQ handler. + */ + void (*free)(struct irq_controller *ctrl, unsigned int irq, + void *dev_id); + /* + * Mask the IRQ in the interrupt controller. + */ + void (*mask)(struct irq_controller *ctrl, unsigned int irq); + /* + * Unmask the IRQ in the interrupt controller. + */ + void (*unmask)(struct irq_controller *ctrl, unsigned int irq); + /* + * Set the type of the IRQ. See below for possible types. + * Return -EINVAL if a given type is not supported + */ + int (*set_type)(struct irq_controller *ctrl, unsigned int irq, + unsigned int type); + /* + * Return the IRQ type currently set + */ + unsigned int (*get_type)(struct irq_controller *ctrl, unsigned int irq); +}; + +struct irq_controller { + struct irq_controller_class *class; + unsigned int irq_group; + unsigned int first_irq; + unsigned int nr_irqs; + struct list_head list; +}; + +struct intc_group_desc { + struct irq_controller *ctrl; + irqreturn_t (*handle)(int, void *, struct pt_regs *); + unsigned long flags; + void *dev_id; + const char *devname; +}; + +/* + * The internal interrupt controller. Defined in board/part-specific + * devices.c. + * TODO: Should probably be defined per-cpu. + */ +extern struct intc_device intc; + +extern int request_internal_irq(unsigned int irq, + irqreturn_t (*handler)(int, void *, struct pt_regs *), + unsigned long irqflags, + const char *devname, void *dev_id); +extern void free_internal_irq(unsigned int irq); + +/* Only used by time_init() */ +extern int setup_internal_irq(unsigned int irq, struct intc_group_desc *desc); + +/* + * Set interrupt priority for a given group. `group' can be found by + * using irq_to_group(irq). Priority can be from 0 (lowest) to 3 + * (highest). Higher-priority interrupts will preempt lower-priority + * interrupts (unless interrupts are masked globally). + * + * This function does not check for conflicts within a group. + */ +extern int intc_set_priority(unsigned int group, + unsigned int priority); + +/* + * Returns a bitmask of pending interrupts in a group. + */ +extern unsigned long intc_get_pending(unsigned int group); + +/* + * Register a new external interrupt controller. Returns the first + * external IRQ number that is assigned to the new controller. + */ +extern int intc_register_controller(struct irq_controller *ctrl); + +#endif /* __ASM_AVR32_INTC_H */
diff --git a/include/asm-avr32/io.h b/include/asm-avr32/io.h new file mode 100644 index 0000000..2fc8f11 --- /dev/null +++ b/include/asm-avr32/io.h
@@ -0,0 +1,253 @@ +#ifndef __ASM_AVR32_IO_H +#define __ASM_AVR32_IO_H + +#include <linux/string.h> + +#ifdef __KERNEL__ + +#include <asm/addrspace.h> +#include <asm/byteorder.h> + +/* virt_to_phys will only work when address is in P1 or P2 */ +static __inline__ unsigned long virt_to_phys(volatile void *address) +{ + return PHYSADDR(address); +} + +static __inline__ void * phys_to_virt(unsigned long address) +{ + return (void *)P1SEGADDR(address); +} + +#define cached_to_phys(addr) ((unsigned long)PHYSADDR(addr)) +#define uncached_to_phys(addr) ((unsigned long)PHYSADDR(addr)) +#define phys_to_cached(addr) ((void *)P1SEGADDR(addr)) +#define phys_to_uncached(addr) ((void *)P2SEGADDR(addr)) + +/* + * Generic IO read/write. These perform native-endian accesses. Note + * that some architectures will want to re-define __raw_{read,write}w. + */ +extern void __raw_writesb(unsigned int addr, const void *data, int bytelen); +extern void __raw_writesw(unsigned int addr, const void *data, int wordlen); +extern void __raw_writesl(unsigned int addr, const void *data, int longlen); + +extern void __raw_readsb(unsigned int addr, void *data, int bytelen); +extern void __raw_readsw(unsigned int addr, void *data, int wordlen); +extern void __raw_readsl(unsigned int addr, void *data, int longlen); + +static inline void writeb(unsigned char b, volatile void __iomem *addr) +{ + *(volatile unsigned char __force *)addr = b; +} +static inline void writew(unsigned short b, volatile void __iomem *addr) +{ + *(volatile unsigned short __force *)addr = b; +} +static inline void writel(unsigned int b, volatile void __iomem *addr) +{ + *(volatile unsigned int __force *)addr = b; +} +#define __raw_writeb writeb +#define __raw_writew writew +#define __raw_writel writel + +static inline unsigned char readb(const volatile void __iomem *addr) +{ + return *(const volatile unsigned char __force *)addr; +} +static inline unsigned short readw(const volatile void __iomem *addr) +{ + return *(const volatile unsigned short __force *)addr; +} +static inline unsigned int readl(const volatile void __iomem *addr) +{ + return *(const volatile unsigned int __force *)addr; +} +#define __raw_readb readb +#define __raw_readw readw +#define __raw_readl readl + +#define writesb(p, d, l) __raw_writesb((unsigned int)p, d, l) +#define writesw(p, d, l) __raw_writesw((unsigned int)p, d, l) +#define writesl(p, d, l) __raw_writesl((unsigned int)p, d, l) + +#define readsb(p, d, l) __raw_readsb((unsigned int)p, d, l) +#define readsw(p, d, l) __raw_readsw((unsigned int)p, d, l) +#define readsl(p, d, l) __raw_readsl((unsigned int)p, d, l) + +/* + * These two are only here because ALSA _thinks_ it needs them... + */ +static inline void memcpy_fromio(void * to, const volatile void __iomem *from, + unsigned long count) +{ + char *p = to; + while (count) { + count--; + *p = readb(from); + p++; + from++; + } +} + +static inline void memcpy_toio(volatile void __iomem *to, const void * from, + unsigned long count) +{ + const char *p = from; + while (count) { + count--; + writeb(*p, to); + p++; + to++; + } +} + +static inline void memset_io(volatile void __iomem *addr, unsigned char val, + unsigned long count) +{ + memset((void __force *)addr, val, count); +} + +/* + * Bad read/write accesses... + */ +extern void __readwrite_bug(const char *fn); + +#define IO_SPACE_LIMIT 0xffffffff + +/* Convert I/O port address to virtual address */ +#define __io(p) ((void __iomem *)phys_to_uncached(p)) + +/* + * IO port access primitives + * ------------------------- + * + * The AVR32 doesn't have special IO access instructions; all IO is memory + * mapped. Note that these are defined to perform little endian accesses + * only. Their primary purpose is to access PCI and ISA peripherals. + * + * Note that for a big endian machine, this implies that the following + * big endian mode connectivity is in place. + * + * The machine specific io.h include defines __io to translate an "IO" + * address to a memory address. + * + * Note that we prevent GCC re-ordering or caching values in expressions + * by introducing sequence points into the in*() definitions. Note that + * __raw_* do not guarantee this behaviour. + * + * The {in,out}[bwl] macros are for emulating x86-style PCI/ISA IO space. + */ +#define outb(v, p) __raw_writeb(v, __io(p)) +#define outw(v, p) __raw_writew(cpu_to_le16(v), __io(p)) +#define outl(v, p) __raw_writel(cpu_to_le32(v), __io(p)) + +#define inb(p) __raw_readb(__io(p)) +#define inw(p) le16_to_cpu(__raw_readw(__io(p))) +#define inl(p) le32_to_cpu(__raw_readl(__io(p))) + +static inline void __outsb(unsigned long port, void *addr, unsigned int count) +{ + while (count--) { + outb(*(u8 *)addr, port); + addr++; + } +} + +static inline void __insb(unsigned long port, void *addr, unsigned int count) +{ + while (count--) { + *(u8 *)addr = inb(port); + addr++; + } +} + +static inline void __outsw(unsigned long port, void *addr, unsigned int count) +{ + while (count--) { + outw(*(u16 *)addr, port); + addr += 2; + } +} + +static inline void __insw(unsigned long port, void *addr, unsigned int count) +{ + while (count--) { + *(u16 *)addr = inw(port); + addr += 2; + } +} + +static inline void __outsl(unsigned long port, void *addr, unsigned int count) +{ + while (count--) { + outl(*(u32 *)addr, port); + addr += 4; + } +} + +static inline void __insl(unsigned long port, void *addr, unsigned int count) +{ + while (count--) { + *(u32 *)addr = inl(port); + addr += 4; + } +} + +#define outsb(port, addr, count) __outsb(port, addr, count) +#define insb(port, addr, count) __insb(port, addr, count) +#define outsw(port, addr, count) __outsw(port, addr, count) +#define insw(port, addr, count) __insw(port, addr, count) +#define outsl(port, addr, count) __outsl(port, addr, count) +#define insl(port, addr, count) __insl(port, addr, count) + +extern void __iomem *__ioremap(unsigned long offset, size_t size, + unsigned long flags); +extern void __iounmap(void __iomem *addr); + +/* + * ioremap - map bus memory into CPU space + * @offset bus address of the memory + * @size size of the resource to map + * + * ioremap performs a platform specific sequence of operations to make + * bus memory CPU accessible via the readb/.../writel functions and + * the other mmio helpers. The returned address is not guaranteed to + * be usable directly as a virtual address. + */ +#define ioremap(offset, size) \ + __ioremap((offset), (size), 0) + +#define iounmap(addr) \ + __iounmap(addr) + +#define cached(addr) P1SEGADDR(addr) +#define uncached(addr) P2SEGADDR(addr) + +#define virt_to_bus virt_to_phys +#define bus_to_virt phys_to_virt +#define page_to_bus page_to_phys +#define bus_to_page phys_to_page + +#define dma_cache_wback_inv(_start, _size) \ + flush_dcache_region(_start, _size) +#define dma_cache_inv(_start, _size) \ + invalidate_dcache_region(_start, _size) +#define dma_cache_wback(_start, _size) \ + clean_dcache_region(_start, _size) + +/* + * Convert a physical pointer to a virtual kernel pointer for /dev/mem + * access + */ +#define xlate_dev_mem_ptr(p) __va(p) + +/* + * Convert a virtual cached pointer to an uncached pointer + */ +#define xlate_dev_kmem_ptr(p) p + +#endif /* __KERNEL__ */ + +#endif /* __ASM_AVR32_IO_H */
diff --git a/include/asm-avr32/ioctl.h b/include/asm-avr32/ioctl.h new file mode 100644 index 0000000..c8472c1 --- /dev/null +++ b/include/asm-avr32/ioctl.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_IOCTL_H +#define __ASM_AVR32_IOCTL_H + +#include <asm-generic/ioctl.h> + +#endif /* __ASM_AVR32_IOCTL_H */
diff --git a/include/asm-avr32/ioctls.h b/include/asm-avr32/ioctls.h new file mode 100644 index 0000000..0500426 --- /dev/null +++ b/include/asm-avr32/ioctls.h
@@ -0,0 +1,83 @@ +#ifndef __ASM_AVR32_IOCTLS_H +#define __ASM_AVR32_IOCTLS_H + +#include <asm/ioctl.h> + +/* 0x54 is just a magic number to make these relatively unique ('T') */ + +#define TCGETS 0x5401 +#define TCSETS 0x5402 /* Clashes with SNDCTL_TMR_START sound ioctl */ +#define TCSETSW 0x5403 +#define TCSETSF 0x5404 +#define TCGETA 0x5405 +#define TCSETA 0x5406 +#define TCSETAW 0x5407 +#define TCSETAF 0x5408 +#define TCSBRK 0x5409 +#define TCXONC 0x540A +#define TCFLSH 0x540B +#define TIOCEXCL 0x540C +#define TIOCNXCL 0x540D +#define TIOCSCTTY 0x540E +#define TIOCGPGRP 0x540F +#define TIOCSPGRP 0x5410 +#define TIOCOUTQ 0x5411 +#define TIOCSTI 0x5412 +#define TIOCGWINSZ 0x5413 +#define TIOCSWINSZ 0x5414 +#define TIOCMGET 0x5415 +#define TIOCMBIS 0x5416 +#define TIOCMBIC 0x5417 +#define TIOCMSET 0x5418 +#define TIOCGSOFTCAR 0x5419 +#define TIOCSSOFTCAR 0x541A +#define FIONREAD 0x541B +#define TIOCINQ FIONREAD +#define TIOCLINUX 0x541C +#define TIOCCONS 0x541D +#define TIOCGSERIAL 0x541E +#define TIOCSSERIAL 0x541F +#define TIOCPKT 0x5420 +#define FIONBIO 0x5421 +#define TIOCNOTTY 0x5422 +#define TIOCSETD 0x5423 +#define TIOCGETD 0x5424 +#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */ +/* #define TIOCTTYGSTRUCT 0x5426 - Former debugging-only ioctl */ +#define TIOCSBRK 0x5427 /* BSD compatibility */ +#define TIOCCBRK 0x5428 /* BSD compatibility */ +#define TIOCGSID 0x5429 /* Return the session ID of FD */ +#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ +#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */ + +#define FIONCLEX 0x5450 +#define FIOCLEX 0x5451 +#define FIOASYNC 0x5452 +#define TIOCSERCONFIG 0x5453 +#define TIOCSERGWILD 0x5454 +#define TIOCSERSWILD 0x5455 +#define TIOCGLCKTRMIOS 0x5456 +#define TIOCSLCKTRMIOS 0x5457 +#define TIOCSERGSTRUCT 0x5458 /* For debugging only */ +#define TIOCSERGETLSR 0x5459 /* Get line status register */ +#define TIOCSERGETMULTI 0x545A /* Get multiport config */ +#define TIOCSERSETMULTI 0x545B /* Set multiport config */ + +#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */ +#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */ +#define TIOCGHAYESESP 0x545E /* Get Hayes ESP configuration */ +#define TIOCSHAYESESP 0x545F /* Set Hayes ESP configuration */ +#define FIOQSIZE 0x5460 + +/* Used for packet mode */ +#define TIOCPKT_DATA 0 +#define TIOCPKT_FLUSHREAD 1 +#define TIOCPKT_FLUSHWRITE 2 +#define TIOCPKT_STOP 4 +#define TIOCPKT_START 8 +#define TIOCPKT_NOSTOP 16 +#define TIOCPKT_DOSTOP 32 + +#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */ + +#endif /* __ASM_AVR32_IOCTLS_H */
diff --git a/include/asm-avr32/ipcbuf.h b/include/asm-avr32/ipcbuf.h new file mode 100644 index 0000000..1552c96 --- /dev/null +++ b/include/asm-avr32/ipcbuf.h
@@ -0,0 +1,29 @@ +#ifndef __ASM_AVR32_IPCBUF_H +#define __ASM_AVR32_IPCBUF_H + +/* +* The user_ipc_perm structure for AVR32 architecture. +* Note extra padding because this structure is passed back and forth +* between kernel and user space. +* +* Pad space is left for: +* - 32-bit mode_t and seq +* - 2 miscellaneous 32-bit values +*/ + +struct ipc64_perm +{ + __kernel_key_t key; + __kernel_uid32_t uid; + __kernel_gid32_t gid; + __kernel_uid32_t cuid; + __kernel_gid32_t cgid; + __kernel_mode_t mode; + unsigned short __pad1; + unsigned short seq; + unsigned short __pad2; + unsigned long __unused1; + unsigned long __unused2; +}; + +#endif /* __ASM_AVR32_IPCBUF_H */
diff --git a/include/asm-avr32/irq.h b/include/asm-avr32/irq.h new file mode 100644 index 0000000..f7e7257 --- /dev/null +++ b/include/asm-avr32/irq.h
@@ -0,0 +1,10 @@ +#ifndef __ASM_AVR32_IRQ_H +#define __ASM_AVR32_IRQ_H + +#define NR_INTERNAL_IRQS 64 +#define NR_EXTERNAL_IRQS 64 +#define NR_IRQS (NR_INTERNAL_IRQS + NR_EXTERNAL_IRQS) + +#define irq_canonicalize(i) (i) + +#endif /* __ASM_AVR32_IOCTLS_H */
diff --git a/include/asm-avr32/irqflags.h b/include/asm-avr32/irqflags.h new file mode 100644 index 0000000..93570da --- /dev/null +++ b/include/asm-avr32/irqflags.h
@@ -0,0 +1,68 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_IRQFLAGS_H +#define __ASM_AVR32_IRQFLAGS_H + +#include <asm/sysreg.h> + +static inline unsigned long __raw_local_save_flags(void) +{ + return sysreg_read(SR); +} + +#define raw_local_save_flags(x) \ + do { (x) = __raw_local_save_flags(); } while (0) + +/* + * This will restore ALL status register flags, not only the interrupt + * mask flag. + * + * The empty asm statement informs the compiler of this fact while + * also serving as a barrier. + */ +static inline void raw_local_irq_restore(unsigned long flags) +{ + sysreg_write(SR, flags); + asm volatile("" : : : "memory", "cc"); +} + +static inline void raw_local_irq_disable(void) +{ + asm volatile("ssrf %0" : : "n"(SYSREG_GM_OFFSET) : "memory"); +} + +static inline void raw_local_irq_enable(void) +{ + asm volatile("csrf %0" : : "n"(SYSREG_GM_OFFSET) : "memory"); +} + +static inline int raw_irqs_disabled_flags(unsigned long flags) +{ + return (flags & SYSREG_BIT(GM)) != 0; +} + +static inline int raw_irqs_disabled(void) +{ + unsigned long flags = __raw_local_save_flags(); + + return raw_irqs_disabled_flags(flags); +} + +static inline unsigned long __raw_local_irq_save(void) +{ + unsigned long flags = __raw_local_save_flags(); + + raw_local_irq_disable(); + + return flags; +} + +#define raw_local_irq_save(flags) \ + do { (flags) = __raw_local_irq_save(); } while (0) + +#endif /* __ASM_AVR32_IRQFLAGS_H */
diff --git a/include/asm-avr32/kdebug.h b/include/asm-avr32/kdebug.h new file mode 100644 index 0000000..f583b64 --- /dev/null +++ b/include/asm-avr32/kdebug.h
@@ -0,0 +1,38 @@ +#ifndef __ASM_AVR32_KDEBUG_H +#define __ASM_AVR32_KDEBUG_H + +#include <linux/notifier.h> + +struct pt_regs; + +struct die_args { + struct pt_regs *regs; + int trapnr; +}; + +int register_die_notifier(struct notifier_block *nb); +int unregister_die_notifier(struct notifier_block *nb); +int register_page_fault_notifier(struct notifier_block *nb); +int unregister_page_fault_notifier(struct notifier_block *nb); +extern struct atomic_notifier_head avr32_die_chain; + +/* Grossly misnamed. */ +enum die_val { + DIE_FAULT, + DIE_BREAKPOINT, + DIE_SSTEP, + DIE_PAGE_FAULT, +}; + +static inline int notify_die(enum die_val val, struct pt_regs *regs, + int trap, int sig) +{ + struct die_args args = { + .regs = regs, + .trapnr = trap, + }; + + return atomic_notifier_call_chain(&avr32_die_chain, val, &args); +} + +#endif /* __ASM_AVR32_KDEBUG_H */
diff --git a/include/asm-avr32/kmap_types.h b/include/asm-avr32/kmap_types.h new file mode 100644 index 0000000..b7f5c68 --- /dev/null +++ b/include/asm-avr32/kmap_types.h
@@ -0,0 +1,30 @@ +#ifndef __ASM_AVR32_KMAP_TYPES_H +#define __ASM_AVR32_KMAP_TYPES_H + +#ifdef CONFIG_DEBUG_HIGHMEM +# define D(n) __KM_FENCE_##n , +#else +# define D(n) +#endif + +enum km_type { +D(0) KM_BOUNCE_READ, +D(1) KM_SKB_SUNRPC_DATA, +D(2) KM_SKB_DATA_SOFTIRQ, +D(3) KM_USER0, +D(4) KM_USER1, +D(5) KM_BIO_SRC_IRQ, +D(6) KM_BIO_DST_IRQ, +D(7) KM_PTE0, +D(8) KM_PTE1, +D(9) KM_PTE2, +D(10) KM_IRQ0, +D(11) KM_IRQ1, +D(12) KM_SOFTIRQ0, +D(13) KM_SOFTIRQ1, +D(14) KM_TYPE_NR +}; + +#undef D + +#endif /* __ASM_AVR32_KMAP_TYPES_H */
diff --git a/include/asm-avr32/kprobes.h b/include/asm-avr32/kprobes.h new file mode 100644 index 0000000..09a5cbe --- /dev/null +++ b/include/asm-avr32/kprobes.h
@@ -0,0 +1,34 @@ +/* + * Kernel Probes (KProbes) + * + * Copyright (C) 2005-2006 Atmel Corporation + * Copyright (C) IBM Corporation, 2002, 2004 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_KPROBES_H +#define __ASM_AVR32_KPROBES_H + +#include <linux/types.h> + +typedef u16 kprobe_opcode_t; +#define BREAKPOINT_INSTRUCTION 0xd673 /* breakpoint */ +#define MAX_INSN_SIZE 2 + +#define ARCH_INACTIVE_KPROBE_COUNT 1 + +#define arch_remove_kprobe(p) do { } while (0) + +/* Architecture specific copy of original instruction */ +struct arch_specific_insn { + kprobe_opcode_t insn[MAX_INSN_SIZE]; +}; + +extern int kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data); + +#define flush_insn_slot(p) do { } while (0) + +#endif /* __ASM_AVR32_KPROBES_H */
diff --git a/include/asm-avr32/linkage.h b/include/asm-avr32/linkage.h new file mode 100644 index 0000000..f7b285e --- /dev/null +++ b/include/asm-avr32/linkage.h
@@ -0,0 +1,7 @@ +#ifndef __ASM_LINKAGE_H +#define __ASM_LINKAGE_H + +#define __ALIGN .balign 2 +#define __ALIGN_STR ".balign 2" + +#endif /* __ASM_LINKAGE_H */
diff --git a/include/asm-avr32/local.h b/include/asm-avr32/local.h new file mode 100644 index 0000000..1c16196 --- /dev/null +++ b/include/asm-avr32/local.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_LOCAL_H +#define __ASM_AVR32_LOCAL_H + +#include <asm-generic/local.h> + +#endif /* __ASM_AVR32_LOCAL_H */
diff --git a/include/asm-avr32/mach/serial_at91.h b/include/asm-avr32/mach/serial_at91.h new file mode 100644 index 0000000..1290bb3 --- /dev/null +++ b/include/asm-avr32/mach/serial_at91.h
@@ -0,0 +1,33 @@ +/* + * linux/include/asm-arm/mach/serial_at91.h + * + * Based on serial_sa1100.h by Nicolas Pitre + * + * Copyright (C) 2002 ATMEL Rousset + * + * Low level machine dependent UART functions. + */ + +struct uart_port; + +/* + * This is a temporary structure for registering these + * functions; it is intended to be discarded after boot. + */ +struct at91_port_fns { + void (*set_mctrl)(struct uart_port *, u_int); + u_int (*get_mctrl)(struct uart_port *); + void (*enable_ms)(struct uart_port *); + void (*pm)(struct uart_port *, u_int, u_int); + int (*set_wake)(struct uart_port *, u_int); + int (*open)(struct uart_port *); + void (*close)(struct uart_port *); +}; + +#if defined(CONFIG_SERIAL_AT91) +void at91_register_uart_fns(struct at91_port_fns *fns); +#else +#define at91_register_uart_fns(fns) do { } while (0) +#endif + +
diff --git a/include/asm-avr32/mman.h b/include/asm-avr32/mman.h new file mode 100644 index 0000000..648f91e --- /dev/null +++ b/include/asm-avr32/mman.h
@@ -0,0 +1,17 @@ +#ifndef __ASM_AVR32_MMAN_H__ +#define __ASM_AVR32_MMAN_H__ + +#include <asm-generic/mman.h> + +#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ +#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ +#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ +#define MAP_LOCKED 0x2000 /* pages are locked */ +#define MAP_NORESERVE 0x4000 /* don't check for reservations */ +#define MAP_POPULATE 0x8000 /* populate (prefault) page tables */ +#define MAP_NONBLOCK 0x10000 /* do not block on IO */ + +#define MCL_CURRENT 1 /* lock all current mappings */ +#define MCL_FUTURE 2 /* lock all future mappings */ + +#endif /* __ASM_AVR32_MMAN_H__ */
diff --git a/include/asm-avr32/mmu.h b/include/asm-avr32/mmu.h new file mode 100644 index 0000000..60c2d26 --- /dev/null +++ b/include/asm-avr32/mmu.h
@@ -0,0 +1,10 @@ +#ifndef __ASM_AVR32_MMU_H +#define __ASM_AVR32_MMU_H + +/* Default "unsigned long" context */ +typedef unsigned long mm_context_t; + +#define MMU_ITLB_ENTRIES 64 +#define MMU_DTLB_ENTRIES 64 + +#endif /* __ASM_AVR32_MMU_H */
diff --git a/include/asm-avr32/mmu_context.h b/include/asm-avr32/mmu_context.h new file mode 100644 index 0000000..31add1a --- /dev/null +++ b/include/asm-avr32/mmu_context.h
@@ -0,0 +1,148 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * ASID handling taken from SH implementation. + * Copyright (C) 1999 Niibe Yutaka + * Copyright (C) 2003 Paul Mundt + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_MMU_CONTEXT_H +#define __ASM_AVR32_MMU_CONTEXT_H + +#include <asm/tlbflush.h> +#include <asm/pgalloc.h> +#include <asm/sysreg.h> + +/* + * The MMU "context" consists of two things: + * (a) TLB cache version + * (b) ASID (Address Space IDentifier) + */ +#define MMU_CONTEXT_ASID_MASK 0x000000ff +#define MMU_CONTEXT_VERSION_MASK 0xffffff00 +#define MMU_CONTEXT_FIRST_VERSION 0x00000100 +#define NO_CONTEXT 0 + +#define MMU_NO_ASID 0x100 + +/* Virtual Page Number mask */ +#define MMU_VPN_MASK 0xfffff000 + +/* Cache of MMU context last used */ +extern unsigned long mmu_context_cache; + +/* + * Get MMU context if needed + */ +static inline void +get_mmu_context(struct mm_struct *mm) +{ + unsigned long mc = mmu_context_cache; + + if (((mm->context ^ mc) & MMU_CONTEXT_VERSION_MASK) == 0) + /* It's up to date, do nothing */ + return; + + /* It's old, we need to get new context with new version */ + mc = ++mmu_context_cache; + if (!(mc & MMU_CONTEXT_ASID_MASK)) { + /* + * We have exhausted all ASIDs of this version. + * Flush the TLB and start new cycle. + */ + flush_tlb_all(); + /* + * Fix version. Note that we avoid version #0 + * to distinguish NO_CONTEXT. + */ + if (!mc) + mmu_context_cache = mc = MMU_CONTEXT_FIRST_VERSION; + } + mm->context = mc; +} + +/* + * Initialize the context related info for a new mm_struct + * instance. + */ +static inline int init_new_context(struct task_struct *tsk, + struct mm_struct *mm) +{ + mm->context = NO_CONTEXT; + return 0; +} + +/* + * Destroy context related info for an mm_struct that is about + * to be put to rest. + */ +static inline void destroy_context(struct mm_struct *mm) +{ + /* Do nothing */ +} + +static inline void set_asid(unsigned long asid) +{ + /* XXX: We're destroying TLBEHI[8:31] */ + sysreg_write(TLBEHI, asid & MMU_CONTEXT_ASID_MASK); + cpu_sync_pipeline(); +} + +static inline unsigned long get_asid(void) +{ + unsigned long asid; + + asid = sysreg_read(TLBEHI); + return asid & MMU_CONTEXT_ASID_MASK; +} + +static inline void activate_context(struct mm_struct *mm) +{ + get_mmu_context(mm); + set_asid(mm->context & MMU_CONTEXT_ASID_MASK); +} + +static inline void switch_mm(struct mm_struct *prev, + struct mm_struct *next, + struct task_struct *tsk) +{ + if (likely(prev != next)) { + unsigned long __pgdir = (unsigned long)next->pgd; + + sysreg_write(PTBR, __pgdir); + activate_context(next); + } +} + +#define deactivate_mm(tsk,mm) do { } while(0) + +#define activate_mm(prev, next) switch_mm((prev), (next), NULL) + +static inline void +enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) +{ +} + + +static inline void enable_mmu(void) +{ + sysreg_write(MMUCR, (SYSREG_BIT(MMUCR_S) + | SYSREG_BIT(E) + | SYSREG_BIT(MMUCR_I))); + nop(); nop(); nop(); nop(); nop(); nop(); nop(); nop(); + + if (mmu_context_cache == NO_CONTEXT) + mmu_context_cache = MMU_CONTEXT_FIRST_VERSION; + + set_asid(mmu_context_cache & MMU_CONTEXT_ASID_MASK); +} + +static inline void disable_mmu(void) +{ + sysreg_write(MMUCR, SYSREG_BIT(MMUCR_S)); +} + +#endif /* __ASM_AVR32_MMU_CONTEXT_H */
diff --git a/include/asm-avr32/module.h b/include/asm-avr32/module.h new file mode 100644 index 0000000..4514445 --- /dev/null +++ b/include/asm-avr32/module.h
@@ -0,0 +1,28 @@ +#ifndef __ASM_AVR32_MODULE_H +#define __ASM_AVR32_MODULE_H + +struct mod_arch_syminfo { + unsigned long got_offset; + int got_initialized; +}; + +struct mod_arch_specific { + /* Starting offset of got in the module core memory. */ + unsigned long got_offset; + /* Size of the got. */ + unsigned long got_size; + /* Number of symbols in syminfo. */ + int nsyms; + /* Additional symbol information (got offsets). */ + struct mod_arch_syminfo *syminfo; +}; + +#define Elf_Shdr Elf32_Shdr +#define Elf_Sym Elf32_Sym +#define Elf_Ehdr Elf32_Ehdr + +#define MODULE_PROC_FAMILY "AVR32v1" + +#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY + +#endif /* __ASM_AVR32_MODULE_H */
diff --git a/include/asm-avr32/msgbuf.h b/include/asm-avr32/msgbuf.h new file mode 100644 index 0000000..ac18bc4 --- /dev/null +++ b/include/asm-avr32/msgbuf.h
@@ -0,0 +1,31 @@ +#ifndef __ASM_AVR32_MSGBUF_H +#define __ASM_AVR32_MSGBUF_H + +/* + * The msqid64_ds structure for i386 architecture. + * Note extra padding because this structure is passed back and forth + * between kernel and user space. + * + * Pad space is left for: + * - 64-bit time_t to solve y2038 problem + * - 2 miscellaneous 32-bit values + */ + +struct msqid64_ds { + struct ipc64_perm msg_perm; + __kernel_time_t msg_stime; /* last msgsnd time */ + unsigned long __unused1; + __kernel_time_t msg_rtime; /* last msgrcv time */ + unsigned long __unused2; + __kernel_time_t msg_ctime; /* last change time */ + unsigned long __unused3; + unsigned long msg_cbytes; /* current number of bytes on queue */ + unsigned long msg_qnum; /* number of messages in queue */ + unsigned long msg_qbytes; /* max number of bytes on queue */ + __kernel_pid_t msg_lspid; /* pid of last msgsnd */ + __kernel_pid_t msg_lrpid; /* last receive pid */ + unsigned long __unused4; + unsigned long __unused5; +}; + +#endif /* __ASM_AVR32_MSGBUF_H */
diff --git a/include/asm-avr32/mutex.h b/include/asm-avr32/mutex.h new file mode 100644 index 0000000..458c1f7 --- /dev/null +++ b/include/asm-avr32/mutex.h
@@ -0,0 +1,9 @@ +/* + * Pull in the generic implementation for the mutex fastpath. + * + * TODO: implement optimized primitives instead, or leave the generic + * implementation in place, or pick the atomic_xchg() based generic + * implementation. (see asm-generic/mutex-xchg.h for details) + */ + +#include <asm-generic/mutex-dec.h>
diff --git a/include/asm-avr32/namei.h b/include/asm-avr32/namei.h new file mode 100644 index 0000000..f0a26de --- /dev/null +++ b/include/asm-avr32/namei.h
@@ -0,0 +1,7 @@ +#ifndef __ASM_AVR32_NAMEI_H +#define __ASM_AVR32_NAMEI_H + +/* This dummy routine may be changed to something useful */ +#define __emul_prefix() NULL + +#endif /* __ASM_AVR32_NAMEI_H */
diff --git a/include/asm-avr32/numnodes.h b/include/asm-avr32/numnodes.h new file mode 100644 index 0000000..0b864d7 --- /dev/null +++ b/include/asm-avr32/numnodes.h
@@ -0,0 +1,7 @@ +#ifndef __ASM_AVR32_NUMNODES_H +#define __ASM_AVR32_NUMNODES_H + +/* Max 4 nodes */ +#define NODES_SHIFT 2 + +#endif /* __ASM_AVR32_NUMNODES_H */
diff --git a/include/asm-avr32/ocd.h b/include/asm-avr32/ocd.h new file mode 100644 index 0000000..46f7318 --- /dev/null +++ b/include/asm-avr32/ocd.h
@@ -0,0 +1,78 @@ +/* + * AVR32 OCD Registers + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_OCD_H +#define __ASM_AVR32_OCD_H + +/* Debug Registers */ +#define DBGREG_DID 0 +#define DBGREG_DC 8 +#define DBGREG_DS 16 +#define DBGREG_RWCS 28 +#define DBGREG_RWA 36 +#define DBGREG_RWD 40 +#define DBGREG_WT 44 +#define DBGREG_DTC 52 +#define DBGREG_DTSA0 56 +#define DBGREG_DTSA1 60 +#define DBGREG_DTEA0 72 +#define DBGREG_DTEA1 76 +#define DBGREG_BWC0A 88 +#define DBGREG_BWC0B 92 +#define DBGREG_BWC1A 96 +#define DBGREG_BWC1B 100 +#define DBGREG_BWC2A 104 +#define DBGREG_BWC2B 108 +#define DBGREG_BWC3A 112 +#define DBGREG_BWC3B 116 +#define DBGREG_BWA0A 120 +#define DBGREG_BWA0B 124 +#define DBGREG_BWA1A 128 +#define DBGREG_BWA1B 132 +#define DBGREG_BWA2A 136 +#define DBGREG_BWA2B 140 +#define DBGREG_BWA3A 144 +#define DBGREG_BWA3B 148 +#define DBGREG_BWD3A 153 +#define DBGREG_BWD3B 156 + +#define DBGREG_PID 284 + +#define SABAH_OCD 0x01 +#define SABAH_ICACHE 0x02 +#define SABAH_MEM_CACHED 0x04 +#define SABAH_MEM_UNCACHED 0x05 + +/* Fields in the Development Control register */ +#define DC_SS_BIT 8 + +#define DC_SS (1 << DC_SS_BIT) +#define DC_DBE (1 << 13) +#define DC_RID (1 << 27) +#define DC_ORP (1 << 28) +#define DC_MM (1 << 29) +#define DC_RES (1 << 30) + +/* Fields in the Development Status register */ +#define DS_SSS (1 << 0) +#define DS_SWB (1 << 1) +#define DS_HWB (1 << 2) +#define DS_BP_SHIFT 8 +#define DS_BP_MASK (0xff << DS_BP_SHIFT) + +#define __mfdr(addr) \ +({ \ + register unsigned long value; \ + asm volatile("mfdr %0, %1" : "=r"(value) : "i"(addr)); \ + value; \ +}) +#define __mtdr(addr, value) \ + asm volatile("mtdr %0, %1" : : "i"(addr), "r"(value)) + +#endif /* __ASM_AVR32_OCD_H */
diff --git a/include/asm-avr32/page.h b/include/asm-avr32/page.h new file mode 100644 index 0000000..0f630b3e --- /dev/null +++ b/include/asm-avr32/page.h
@@ -0,0 +1,112 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_PAGE_H +#define __ASM_AVR32_PAGE_H + +#ifdef __KERNEL__ + +/* PAGE_SHIFT determines the page size */ +#define PAGE_SHIFT 12 +#ifdef __ASSEMBLY__ +#define PAGE_SIZE (1 << PAGE_SHIFT) +#else +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#endif +#define PAGE_MASK (~(PAGE_SIZE-1)) +#define PTE_MASK PAGE_MASK + +#ifndef __ASSEMBLY__ + +#include <asm/addrspace.h> + +extern void clear_page(void *to); +extern void copy_page(void *to, void *from); + +#define clear_user_page(page, vaddr, pg) clear_page(page) +#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) + +/* + * These are used to make use of C type-checking.. + */ +typedef struct { unsigned long pte; } pte_t; +typedef struct { unsigned long pgd; } pgd_t; +typedef struct { unsigned long pgprot; } pgprot_t; + +#define pte_val(x) ((x).pte) +#define pgd_val(x) ((x).pgd) +#define pgprot_val(x) ((x).pgprot) + +#define __pte(x) ((pte_t) { (x) }) +#define __pgd(x) ((pgd_t) { (x) }) +#define __pgprot(x) ((pgprot_t) { (x) }) + +/* FIXME: These should be removed soon */ +extern unsigned long memory_start, memory_end; + +/* Pure 2^n version of get_order */ +static inline int get_order(unsigned long size) +{ + unsigned lz; + + size = (size - 1) >> PAGE_SHIFT; + asm("clz %0, %1" : "=r"(lz) : "r"(size)); + return 32 - lz; +} + +#endif /* !__ASSEMBLY__ */ + +/* Align the pointer to the (next) page boundary */ +#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) + +/* + * The hardware maps the virtual addresses 0x80000000 -> 0x9fffffff + * permanently to the physical addresses 0x00000000 -> 0x1fffffff when + * segmentation is enabled. We want to make use of this in order to + * minimize TLB pressure. + */ +#define PAGE_OFFSET (0x80000000UL) + +/* + * ALSA uses virt_to_page() on DMA pages, which I'm not entirely sure + * is a good idea. Anyway, we can't simply subtract PAGE_OFFSET here + * in that case, so we'll have to mask out the three most significant + * bits of the address instead... + * + * What's the difference between __pa() and virt_to_phys() anyway? + */ +#define __pa(x) PHYSADDR(x) +#define __va(x) ((void *)(P1SEGADDR(x))) + +#define MAP_NR(addr) (((unsigned long)(addr) - PAGE_OFFSET) >> PAGE_SHIFT) + +#define phys_to_page(phys) (pfn_to_page(phys >> PAGE_SHIFT)) +#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) + +#ifndef CONFIG_NEED_MULTIPLE_NODES + +#define PHYS_PFN_OFFSET (CONFIG_PHYS_OFFSET >> PAGE_SHIFT) + +#define pfn_to_page(pfn) (mem_map + ((pfn) - PHYS_PFN_OFFSET)) +#define page_to_pfn(page) ((unsigned long)((page) - mem_map) + PHYS_PFN_OFFSET) +#define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr)) +#endif /* CONFIG_NEED_MULTIPLE_NODES */ + +#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) +#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) + +#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | \ + VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) + +/* + * Memory above this physical address will be considered highmem. + */ +#define HIGHMEM_START 0x20000000UL + +#endif /* __KERNEL__ */ + +#endif /* __ASM_AVR32_PAGE_H */
diff --git a/include/asm-avr32/param.h b/include/asm-avr32/param.h new file mode 100644 index 0000000..34bc8d4 --- /dev/null +++ b/include/asm-avr32/param.h
@@ -0,0 +1,23 @@ +#ifndef __ASM_AVR32_PARAM_H +#define __ASM_AVR32_PARAM_H + +#ifdef __KERNEL__ +# define HZ CONFIG_HZ +# define USER_HZ 100 /* User interfaces are in "ticks" */ +# define CLOCKS_PER_SEC (USER_HZ) /* frequency at which times() counts */ +#endif + +#ifndef HZ +# define HZ 100 +#endif + +/* TODO: Should be configurable */ +#define EXEC_PAGESIZE 4096 + +#ifndef NOGROUP +# define NOGROUP (-1) +#endif + +#define MAXHOSTNAMELEN 64 + +#endif /* __ASM_AVR32_PARAM_H */
diff --git a/include/asm-avr32/pci.h b/include/asm-avr32/pci.h new file mode 100644 index 0000000..0f5f134 --- /dev/null +++ b/include/asm-avr32/pci.h
@@ -0,0 +1,8 @@ +#ifndef __ASM_AVR32_PCI_H__ +#define __ASM_AVR32_PCI_H__ + +/* We don't support PCI yet, but some drivers require this file anyway */ + +#define PCI_DMA_BUS_IS_PHYS (1) + +#endif /* __ASM_AVR32_PCI_H__ */
diff --git a/include/asm-avr32/percpu.h b/include/asm-avr32/percpu.h new file mode 100644 index 0000000..69227b4 --- /dev/null +++ b/include/asm-avr32/percpu.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_PERCPU_H +#define __ASM_AVR32_PERCPU_H + +#include <asm-generic/percpu.h> + +#endif /* __ASM_AVR32_PERCPU_H */
diff --git a/include/asm-avr32/pgalloc.h b/include/asm-avr32/pgalloc.h new file mode 100644 index 0000000..7492cfb --- /dev/null +++ b/include/asm-avr32/pgalloc.h
@@ -0,0 +1,96 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_PGALLOC_H +#define __ASM_AVR32_PGALLOC_H + +#include <asm/processor.h> +#include <linux/threads.h> +#include <linux/slab.h> +#include <linux/mm.h> + +#define pmd_populate_kernel(mm, pmd, pte) \ + set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))) + +static __inline__ void pmd_populate(struct mm_struct *mm, pmd_t *pmd, + struct page *pte) +{ + set_pmd(pmd, __pmd(_PAGE_TABLE + page_to_phys(pte))); +} + +/* + * Allocate and free page tables + */ +static __inline__ pgd_t *pgd_alloc(struct mm_struct *mm) +{ + unsigned int pgd_size = (USER_PTRS_PER_PGD * sizeof(pgd_t)); + pgd_t *pgd = (pgd_t *)kmalloc(pgd_size, GFP_KERNEL); + + if (pgd) + memset(pgd, 0, pgd_size); + + return pgd; +} + +static inline void pgd_free(pgd_t *pgd) +{ + kfree(pgd); +} + +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, + unsigned long address) +{ + int count = 0; + pte_t *pte; + + do { + pte = (pte_t *) __get_free_page(GFP_KERNEL | __GFP_REPEAT); + if (pte) + clear_page(pte); + else { + current->state = TASK_UNINTERRUPTIBLE; + schedule_timeout(HZ); + } + } while (!pte && (count++ < 10)); + + return pte; +} + +static inline struct page *pte_alloc_one(struct mm_struct *mm, + unsigned long address) +{ + int count = 0; + struct page *pte; + + do { + pte = alloc_pages(GFP_KERNEL, 0); + if (pte) + clear_page(page_address(pte)); + else { + current->state = TASK_UNINTERRUPTIBLE; + schedule_timeout(HZ); + } + } while (!pte && (count++ < 10)); + + return pte; +} + +static inline void pte_free_kernel(pte_t *pte) +{ + free_page((unsigned long)pte); +} + +static inline void pte_free(struct page *pte) +{ + __free_page(pte); +} + +#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte)) + +#define check_pgt_cache() do { } while(0) + +#endif /* __ASM_AVR32_PGALLOC_H */
diff --git a/include/asm-avr32/pgtable-2level.h b/include/asm-avr32/pgtable-2level.h new file mode 100644 index 0000000..425dd56 --- /dev/null +++ b/include/asm-avr32/pgtable-2level.h
@@ -0,0 +1,47 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_PGTABLE_2LEVEL_H +#define __ASM_AVR32_PGTABLE_2LEVEL_H + +#include <asm-generic/pgtable-nopmd.h> + +/* + * Traditional 2-level paging structure + */ +#define PGDIR_SHIFT 22 +#define PTRS_PER_PGD 1024 + +#define PTRS_PER_PTE 1024 + +#ifndef __ASSEMBLY__ +#define pte_ERROR(e) \ + printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e)) +#define pgd_ERROR(e) \ + printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e)) + +/* + * Certain architectures need to do special things when PTEs + * within a page table are directly modified. Thus, the following + * hook is made available. + */ +#define set_pte(pteptr, pteval) (*(pteptr) = pteval) +#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep, pteval) + +/* + * (pmds are folded into pgds so this doesn't get actually called, + * but the define is needed for a generic inline function.) + */ +#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) + +#define pte_pfn(x) ((unsigned long)(((x).pte >> PAGE_SHIFT))) +#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) +#define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) + +#endif /* !__ASSEMBLY__ */ + +#endif /* __ASM_AVR32_PGTABLE_2LEVEL_H */
diff --git a/include/asm-avr32/pgtable.h b/include/asm-avr32/pgtable.h new file mode 100644 index 0000000..6b8ca9d --- /dev/null +++ b/include/asm-avr32/pgtable.h
@@ -0,0 +1,408 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_PGTABLE_H +#define __ASM_AVR32_PGTABLE_H + +#include <asm/addrspace.h> + +#ifndef __ASSEMBLY__ +#include <linux/sched.h> + +#endif /* !__ASSEMBLY__ */ + +/* + * Use two-level page tables just as the i386 (without PAE) + */ +#include <asm/pgtable-2level.h> + +/* + * The following code might need some cleanup when the values are + * final... + */ +#define PMD_SIZE (1UL << PMD_SHIFT) +#define PMD_MASK (~(PMD_SIZE-1)) +#define PGDIR_SIZE (1UL << PGDIR_SHIFT) +#define PGDIR_MASK (~(PGDIR_SIZE-1)) + +#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE) +#define FIRST_USER_ADDRESS 0 + +#define PTE_PHYS_MASK 0x1ffff000 + +#ifndef __ASSEMBLY__ +extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; +extern void paging_init(void); + +/* + * ZERO_PAGE is a global shared page that is always zero: used for + * zero-mapped memory areas etc. + */ +extern struct page *empty_zero_page; +#define ZERO_PAGE(vaddr) (empty_zero_page) + +/* + * Just any arbitrary offset to the start of the vmalloc VM area: the + * current 8 MiB value just means that there will be a 8 MiB "hole" + * after the uncached physical memory (P2 segment) until the vmalloc + * area starts. That means that any out-of-bounds memory accesses will + * hopefully be caught; we don't know if the end of the P1/P2 segments + * are actually used for anything, but it is anyway safer to let the + * MMU catch these kinds of errors than to rely on the memory bus. + * + * A "hole" of the same size is added to the end of the P3 segment as + * well. It might seem wasteful to use 16 MiB of virtual address space + * on this, but we do have 512 MiB of it... + * + * The vmalloc() routines leave a hole of 4 KiB between each vmalloced + * area for the same reason. + */ +#define VMALLOC_OFFSET (8 * 1024 * 1024) +#define VMALLOC_START (P3SEG + VMALLOC_OFFSET) +#define VMALLOC_END (P4SEG - VMALLOC_OFFSET) +#endif /* !__ASSEMBLY__ */ + +/* + * Page flags. Some of these flags are not directly supported by + * hardware, so we have to emulate them. + */ +#define _TLBEHI_BIT_VALID 9 +#define _TLBEHI_VALID (1 << _TLBEHI_BIT_VALID) + +#define _PAGE_BIT_WT 0 /* W-bit : write-through */ +#define _PAGE_BIT_DIRTY 1 /* D-bit : page changed */ +#define _PAGE_BIT_SZ0 2 /* SZ0-bit : Size of page */ +#define _PAGE_BIT_SZ1 3 /* SZ1-bit : Size of page */ +#define _PAGE_BIT_EXECUTE 4 /* X-bit : execute access allowed */ +#define _PAGE_BIT_RW 5 /* AP0-bit : write access allowed */ +#define _PAGE_BIT_USER 6 /* AP1-bit : user space access allowed */ +#define _PAGE_BIT_BUFFER 7 /* B-bit : bufferable */ +#define _PAGE_BIT_GLOBAL 8 /* G-bit : global (ignore ASID) */ +#define _PAGE_BIT_CACHABLE 9 /* C-bit : cachable */ + +/* If we drop support for 1K pages, we get two extra bits */ +#define _PAGE_BIT_PRESENT 10 +#define _PAGE_BIT_ACCESSED 11 /* software: page was accessed */ + +/* The following flags are only valid when !PRESENT */ +#define _PAGE_BIT_FILE 0 /* software: pagecache or swap? */ + +#define _PAGE_WT (1 << _PAGE_BIT_WT) +#define _PAGE_DIRTY (1 << _PAGE_BIT_DIRTY) +#define _PAGE_EXECUTE (1 << _PAGE_BIT_EXECUTE) +#define _PAGE_RW (1 << _PAGE_BIT_RW) +#define _PAGE_USER (1 << _PAGE_BIT_USER) +#define _PAGE_BUFFER (1 << _PAGE_BIT_BUFFER) +#define _PAGE_GLOBAL (1 << _PAGE_BIT_GLOBAL) +#define _PAGE_CACHABLE (1 << _PAGE_BIT_CACHABLE) + +/* Software flags */ +#define _PAGE_ACCESSED (1 << _PAGE_BIT_ACCESSED) +#define _PAGE_PRESENT (1 << _PAGE_BIT_PRESENT) +#define _PAGE_FILE (1 << _PAGE_BIT_FILE) + +/* + * Page types, i.e. sizes. _PAGE_TYPE_NONE corresponds to what is + * usually called _PAGE_PROTNONE on other architectures. + * + * XXX: Find out if _PAGE_PROTNONE is equivalent with !_PAGE_USER. If + * so, we can encode all possible page sizes (although we can't really + * support 1K pages anyway due to the _PAGE_PRESENT and _PAGE_ACCESSED + * bits) + * + */ +#define _PAGE_TYPE_MASK ((1 << _PAGE_BIT_SZ0) | (1 << _PAGE_BIT_SZ1)) +#define _PAGE_TYPE_NONE (0 << _PAGE_BIT_SZ0) +#define _PAGE_TYPE_SMALL (1 << _PAGE_BIT_SZ0) +#define _PAGE_TYPE_MEDIUM (2 << _PAGE_BIT_SZ0) +#define _PAGE_TYPE_LARGE (3 << _PAGE_BIT_SZ0) + +/* + * Mask which drop software flags. We currently can't handle more than + * 512 MiB of physical memory, so we can use bits 29-31 for other + * stuff. With a fixed 4K page size, we can use bits 10-11 as well as + * bits 2-3 (SZ) + */ +#define _PAGE_FLAGS_HARDWARE_MASK 0xfffff3ff + +#define _PAGE_FLAGS_CACHE_MASK (_PAGE_CACHABLE | _PAGE_BUFFER | _PAGE_WT) + +/* TODO: Check for saneness */ +/* User-mode page table flags (to be set in a pgd or pmd entry) */ +#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_TYPE_SMALL | _PAGE_RW \ + | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY) +/* Kernel-mode page table flags */ +#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_TYPE_SMALL | _PAGE_RW \ + | _PAGE_ACCESSED | _PAGE_DIRTY) +/* Flags that may be modified by software */ +#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY \ + | _PAGE_FLAGS_CACHE_MASK) + +#define _PAGE_FLAGS_READ (_PAGE_CACHABLE | _PAGE_BUFFER) +#define _PAGE_FLAGS_WRITE (_PAGE_FLAGS_READ | _PAGE_RW | _PAGE_DIRTY) + +#define _PAGE_NORMAL(x) __pgprot((x) | _PAGE_PRESENT | _PAGE_TYPE_SMALL \ + | _PAGE_ACCESSED) + +#define PAGE_NONE (_PAGE_ACCESSED | _PAGE_TYPE_NONE) +#define PAGE_READ (_PAGE_FLAGS_READ | _PAGE_USER) +#define PAGE_EXEC (_PAGE_FLAGS_READ | _PAGE_EXECUTE | _PAGE_USER) +#define PAGE_WRITE (_PAGE_FLAGS_WRITE | _PAGE_USER) +#define PAGE_KERNEL _PAGE_NORMAL(_PAGE_FLAGS_WRITE | _PAGE_EXECUTE | _PAGE_GLOBAL) +#define PAGE_KERNEL_RO _PAGE_NORMAL(_PAGE_FLAGS_READ | _PAGE_EXECUTE | _PAGE_GLOBAL) + +#define _PAGE_P(x) _PAGE_NORMAL((x) & ~(_PAGE_RW | _PAGE_DIRTY)) +#define _PAGE_S(x) _PAGE_NORMAL(x) + +#define PAGE_COPY _PAGE_P(PAGE_WRITE | PAGE_READ) + +#ifndef __ASSEMBLY__ +/* + * The hardware supports flags for write- and execute access. Read is + * always allowed if the page is loaded into the TLB, so the "-w-", + * "--x" and "-wx" mappings are implemented as "rw-", "r-x" and "rwx", + * respectively. + * + * The "---" case is handled by software; the page will simply not be + * loaded into the TLB if the page type is _PAGE_TYPE_NONE. + */ + +#define __P000 __pgprot(PAGE_NONE) +#define __P001 _PAGE_P(PAGE_READ) +#define __P010 _PAGE_P(PAGE_WRITE) +#define __P011 _PAGE_P(PAGE_WRITE | PAGE_READ) +#define __P100 _PAGE_P(PAGE_EXEC) +#define __P101 _PAGE_P(PAGE_EXEC | PAGE_READ) +#define __P110 _PAGE_P(PAGE_EXEC | PAGE_WRITE) +#define __P111 _PAGE_P(PAGE_EXEC | PAGE_WRITE | PAGE_READ) + +#define __S000 __pgprot(PAGE_NONE) +#define __S001 _PAGE_S(PAGE_READ) +#define __S010 _PAGE_S(PAGE_WRITE) +#define __S011 _PAGE_S(PAGE_WRITE | PAGE_READ) +#define __S100 _PAGE_S(PAGE_EXEC) +#define __S101 _PAGE_S(PAGE_EXEC | PAGE_READ) +#define __S110 _PAGE_S(PAGE_EXEC | PAGE_WRITE) +#define __S111 _PAGE_S(PAGE_EXEC | PAGE_WRITE | PAGE_READ) + +#define pte_none(x) (!pte_val(x)) +#define pte_present(x) (pte_val(x) & _PAGE_PRESENT) + +#define pte_clear(mm,addr,xp) \ + do { \ + set_pte_at(mm, addr, xp, __pte(0)); \ + } while (0) + +/* + * The following only work if pte_present() is true. + * Undefined behaviour if not.. + */ +static inline int pte_read(pte_t pte) +{ + return pte_val(pte) & _PAGE_USER; +} +static inline int pte_write(pte_t pte) +{ + return pte_val(pte) & _PAGE_RW; +} +static inline int pte_exec(pte_t pte) +{ + return pte_val(pte) & _PAGE_EXECUTE; +} +static inline int pte_dirty(pte_t pte) +{ + return pte_val(pte) & _PAGE_DIRTY; +} +static inline int pte_young(pte_t pte) +{ + return pte_val(pte) & _PAGE_ACCESSED; +} + +/* + * The following only work if pte_present() is not true. + */ +static inline int pte_file(pte_t pte) +{ + return pte_val(pte) & _PAGE_FILE; +} + +/* Mutator functions for PTE bits */ +static inline pte_t pte_rdprotect(pte_t pte) +{ + set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_USER)); + return pte; +} +static inline pte_t pte_wrprotect(pte_t pte) +{ + set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_RW)); + return pte; +} +static inline pte_t pte_exprotect(pte_t pte) +{ + set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_EXECUTE)); + return pte; +} +static inline pte_t pte_mkclean(pte_t pte) +{ + set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_DIRTY)); + return pte; +} +static inline pte_t pte_mkold(pte_t pte) +{ + set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_ACCESSED)); + return pte; +} +static inline pte_t pte_mkread(pte_t pte) +{ + set_pte(&pte, __pte(pte_val(pte) | _PAGE_USER)); + return pte; +} +static inline pte_t pte_mkwrite(pte_t pte) +{ + set_pte(&pte, __pte(pte_val(pte) | _PAGE_RW)); + return pte; +} +static inline pte_t pte_mkexec(pte_t pte) +{ + set_pte(&pte, __pte(pte_val(pte) | _PAGE_EXECUTE)); + return pte; +} +static inline pte_t pte_mkdirty(pte_t pte) +{ + set_pte(&pte, __pte(pte_val(pte) | _PAGE_DIRTY)); + return pte; +} +static inline pte_t pte_mkyoung(pte_t pte) +{ + set_pte(&pte, __pte(pte_val(pte) | _PAGE_ACCESSED)); + return pte; +} + +#define pmd_none(x) (!pmd_val(x)) +#define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT) +#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) +#define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) \ + != _KERNPG_TABLE) + +/* + * Permanent address of a page. We don't support highmem, so this is + * trivial. + */ +#define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) +#define pte_page(x) phys_to_page(pte_val(x) & PTE_PHYS_MASK) + +/* + * Mark the prot value as uncacheable and unbufferable + */ +#define pgprot_noncached(prot) \ + __pgprot(pgprot_val(prot) & ~(_PAGE_BUFFER | _PAGE_CACHABLE)) + +/* + * Mark the prot value as uncacheable but bufferable + */ +#define pgprot_writecombine(prot) \ + __pgprot((pgprot_val(prot) & ~_PAGE_CACHABLE) | _PAGE_BUFFER) + +/* + * Conversion functions: convert a page and protection to a page entry, + * and a page entry and page directory to the page they refer to. + * + * extern pte_t mk_pte(struct page *page, pgprot_t pgprot) + */ +#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot)) + +static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) +{ + set_pte(&pte, __pte((pte_val(pte) & _PAGE_CHG_MASK) + | pgprot_val(newprot))); + return pte; +} + +#define page_pte(page) page_pte_prot(page, __pgprot(0)) + +#define pmd_page_vaddr(pmd) \ + ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) + +#define pmd_page(pmd) (phys_to_page(pmd_val(pmd))) + +/* to find an entry in a page-table-directory. */ +#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) +#define pgd_offset(mm, address) ((mm)->pgd+pgd_index(address)) +#define pgd_offset_current(address) \ + ((pgd_t *)__mfsr(SYSREG_PTBR) + pgd_index(address)) + +/* to find an entry in a kernel page-table-directory */ +#define pgd_offset_k(address) pgd_offset(&init_mm, address) + +/* Find an entry in the third-level page table.. */ +#define pte_index(address) \ + ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) +#define pte_offset(dir, address) \ + ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address)) +#define pte_offset_kernel(dir, address) \ + ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address)) +#define pte_offset_map(dir, address) pte_offset_kernel(dir, address) +#define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address) +#define pte_unmap(pte) do { } while (0) +#define pte_unmap_nested(pte) do { } while (0) + +struct vm_area_struct; +extern void update_mmu_cache(struct vm_area_struct * vma, + unsigned long address, pte_t pte); + +/* + * Encode and decode a swap entry + * + * Constraints: + * _PAGE_FILE at bit 0 + * _PAGE_TYPE_* at bits 2-3 (for emulating _PAGE_PROTNONE) + * _PAGE_PRESENT at bit 10 + * + * We encode the type into bits 4-9 and offset into bits 11-31. This + * gives us a 21 bits offset, or 2**21 * 4K = 8G usable swap space per + * device, and 64 possible types. + * + * NOTE: We should set ZEROs at the position of _PAGE_PRESENT + * and _PAGE_PROTNONE bits + */ +#define __swp_type(x) (((x).val >> 4) & 0x3f) +#define __swp_offset(x) ((x).val >> 11) +#define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 4) | ((offset) << 11) }) +#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) +#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) + +/* + * Encode and decode a nonlinear file mapping entry. We have to + * preserve _PAGE_FILE and _PAGE_PRESENT here. _PAGE_TYPE_* isn't + * necessary, since _PAGE_FILE implies !_PAGE_PROTNONE (?) + */ +#define PTE_FILE_MAX_BITS 30 +#define pte_to_pgoff(pte) (((pte_val(pte) >> 1) & 0x1ff) \ + | ((pte_val(pte) >> 11) << 9)) +#define pgoff_to_pte(off) ((pte_t) { ((((off) & 0x1ff) << 1) \ + | (((off) >> 9) << 11) \ + | _PAGE_FILE) }) + +typedef pte_t *pte_addr_t; + +#define kern_addr_valid(addr) (1) + +#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ + remap_pfn_range(vma, vaddr, pfn, size, prot) + +#define MK_IOSPACE_PFN(space, pfn) (pfn) +#define GET_IOSPACE(pfn) 0 +#define GET_PFN(pfn) (pfn) + +/* No page table caches to initialize (?) */ +#define pgtable_cache_init() do { } while(0) + +#include <asm-generic/pgtable.h> + +#endif /* !__ASSEMBLY__ */ + +#endif /* __ASM_AVR32_PGTABLE_H */
diff --git a/include/asm-avr32/poll.h b/include/asm-avr32/poll.h new file mode 100644 index 0000000..736e297 --- /dev/null +++ b/include/asm-avr32/poll.h
@@ -0,0 +1,27 @@ +#ifndef __ASM_AVR32_POLL_H +#define __ASM_AVR32_POLL_H + +/* These are specified by iBCS2 */ +#define POLLIN 0x0001 +#define POLLPRI 0x0002 +#define POLLOUT 0x0004 +#define POLLERR 0x0008 +#define POLLHUP 0x0010 +#define POLLNVAL 0x0020 + +/* The rest seem to be more-or-less nonstandard. Check them! */ +#define POLLRDNORM 0x0040 +#define POLLRDBAND 0x0080 +#define POLLWRNORM 0x0100 +#define POLLWRBAND 0x0200 +#define POLLMSG 0x0400 +#define POLLREMOVE 0x1000 +#define POLLRDHUP 0x2000 + +struct pollfd { + int fd; + short events; + short revents; +}; + +#endif /* __ASM_AVR32_POLL_H */
diff --git a/include/asm-avr32/posix_types.h b/include/asm-avr32/posix_types.h new file mode 100644 index 0000000..2831b03 --- /dev/null +++ b/include/asm-avr32/posix_types.h
@@ -0,0 +1,129 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_POSIX_TYPES_H +#define __ASM_AVR32_POSIX_TYPES_H + +/* + * This file is generally used by user-level software, so you need to + * be a little careful about namespace pollution etc. Also, we cannot + * assume GCC is being used. + */ + +typedef unsigned long __kernel_ino_t; +typedef unsigned short __kernel_mode_t; +typedef unsigned short __kernel_nlink_t; +typedef long __kernel_off_t; +typedef int __kernel_pid_t; +typedef unsigned short __kernel_ipc_pid_t; +typedef unsigned int __kernel_uid_t; +typedef unsigned int __kernel_gid_t; +typedef unsigned long __kernel_size_t; +typedef int __kernel_ssize_t; +typedef int __kernel_ptrdiff_t; +typedef long __kernel_time_t; +typedef long __kernel_suseconds_t; +typedef long __kernel_clock_t; +typedef int __kernel_timer_t; +typedef int __kernel_clockid_t; +typedef int __kernel_daddr_t; +typedef char * __kernel_caddr_t; +typedef unsigned short __kernel_uid16_t; +typedef unsigned short __kernel_gid16_t; +typedef unsigned int __kernel_uid32_t; +typedef unsigned int __kernel_gid32_t; + +typedef unsigned short __kernel_old_uid_t; +typedef unsigned short __kernel_old_gid_t; +typedef unsigned short __kernel_old_dev_t; + +#ifdef __GNUC__ +typedef long long __kernel_loff_t; +#endif + +typedef struct { +#if defined(__KERNEL__) || defined(__USE_ALL) + int val[2]; +#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */ + int __val[2]; +#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */ +} __kernel_fsid_t; + +#if defined(__KERNEL__) + +#undef __FD_SET +static __inline__ void __FD_SET(unsigned long __fd, __kernel_fd_set *__fdsetp) +{ + unsigned long __tmp = __fd / __NFDBITS; + unsigned long __rem = __fd % __NFDBITS; + __fdsetp->fds_bits[__tmp] |= (1UL<<__rem); +} + +#undef __FD_CLR +static __inline__ void __FD_CLR(unsigned long __fd, __kernel_fd_set *__fdsetp) +{ + unsigned long __tmp = __fd / __NFDBITS; + unsigned long __rem = __fd % __NFDBITS; + __fdsetp->fds_bits[__tmp] &= ~(1UL<<__rem); +} + + +#undef __FD_ISSET +static __inline__ int __FD_ISSET(unsigned long __fd, const __kernel_fd_set *__p) +{ + unsigned long __tmp = __fd / __NFDBITS; + unsigned long __rem = __fd % __NFDBITS; + return (__p->fds_bits[__tmp] & (1UL<<__rem)) != 0; +} + +/* + * This will unroll the loop for the normal constant case (8 ints, + * for a 256-bit fd_set) + */ +#undef __FD_ZERO +static __inline__ void __FD_ZERO(__kernel_fd_set *__p) +{ + unsigned long *__tmp = __p->fds_bits; + int __i; + + if (__builtin_constant_p(__FDSET_LONGS)) { + switch (__FDSET_LONGS) { + case 16: + __tmp[ 0] = 0; __tmp[ 1] = 0; + __tmp[ 2] = 0; __tmp[ 3] = 0; + __tmp[ 4] = 0; __tmp[ 5] = 0; + __tmp[ 6] = 0; __tmp[ 7] = 0; + __tmp[ 8] = 0; __tmp[ 9] = 0; + __tmp[10] = 0; __tmp[11] = 0; + __tmp[12] = 0; __tmp[13] = 0; + __tmp[14] = 0; __tmp[15] = 0; + return; + + case 8: + __tmp[ 0] = 0; __tmp[ 1] = 0; + __tmp[ 2] = 0; __tmp[ 3] = 0; + __tmp[ 4] = 0; __tmp[ 5] = 0; + __tmp[ 6] = 0; __tmp[ 7] = 0; + return; + + case 4: + __tmp[ 0] = 0; __tmp[ 1] = 0; + __tmp[ 2] = 0; __tmp[ 3] = 0; + return; + } + } + __i = __FDSET_LONGS; + while (__i) { + __i--; + *__tmp = 0; + __tmp++; + } +} + +#endif /* defined(__KERNEL__) */ + +#endif /* __ASM_AVR32_POSIX_TYPES_H */
diff --git a/include/asm-avr32/processor.h b/include/asm-avr32/processor.h new file mode 100644 index 0000000..f691377 --- /dev/null +++ b/include/asm-avr32/processor.h
@@ -0,0 +1,147 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_PROCESSOR_H +#define __ASM_AVR32_PROCESSOR_H + +#include <asm/page.h> +#include <asm/cache.h> + +#define TASK_SIZE 0x80000000 + +#ifndef __ASSEMBLY__ + +static inline void *current_text_addr(void) +{ + register void *pc asm("pc"); + return pc; +} + +enum arch_type { + ARCH_AVR32A, + ARCH_AVR32B, + ARCH_MAX +}; + +enum cpu_type { + CPU_MORGAN, + CPU_AT32AP, + CPU_MAX +}; + +enum tlb_config { + TLB_NONE, + TLB_SPLIT, + TLB_UNIFIED, + TLB_INVALID +}; + +struct avr32_cpuinfo { + struct clk *clk; + unsigned long loops_per_jiffy; + enum arch_type arch_type; + enum cpu_type cpu_type; + unsigned short arch_revision; + unsigned short cpu_revision; + enum tlb_config tlb_config; + + struct cache_info icache; + struct cache_info dcache; +}; + +extern struct avr32_cpuinfo boot_cpu_data; + +#ifdef CONFIG_SMP +extern struct avr32_cpuinfo cpu_data[]; +#define current_cpu_data cpu_data[smp_processor_id()] +#else +#define cpu_data (&boot_cpu_data) +#define current_cpu_data boot_cpu_data +#endif + +/* This decides where the kernel will search for a free chunk of vm + * space during mmap's + */ +#define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3)) + +#define cpu_relax() barrier() +#define cpu_sync_pipeline() asm volatile("sub pc, -2" : : : "memory") + +struct cpu_context { + unsigned long sr; + unsigned long pc; + unsigned long ksp; /* Kernel stack pointer */ + unsigned long r7; + unsigned long r6; + unsigned long r5; + unsigned long r4; + unsigned long r3; + unsigned long r2; + unsigned long r1; + unsigned long r0; +}; + +/* This struct contains the CPU context as stored by switch_to() */ +struct thread_struct { + struct cpu_context cpu_context; + unsigned long single_step_addr; + u16 single_step_insn; +}; + +#define INIT_THREAD { \ + .cpu_context = { \ + .ksp = sizeof(init_stack) + (long)&init_stack, \ + }, \ +} + +/* + * Do necessary setup to start up a newly executed thread. + */ +#define start_thread(regs, new_pc, new_sp) \ + do { \ + set_fs(USER_DS); \ + memset(regs, 0, sizeof(*regs)); \ + regs->sr = MODE_USER; \ + regs->pc = new_pc & ~1; \ + regs->sp = new_sp; \ + } while(0) + +struct task_struct; + +/* Free all resources held by a thread */ +extern void release_thread(struct task_struct *); + +/* Create a kernel thread without removing it from tasklists */ +extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); + +/* Prepare to copy thread state - unlazy all lazy status */ +#define prepare_to_copy(tsk) do { } while(0) + +/* Return saved PC of a blocked thread */ +#define thread_saved_pc(tsk) ((tsk)->thread.cpu_context.pc) + +struct pt_regs; +void show_trace(struct task_struct *task, unsigned long *stack, + struct pt_regs *regs); + +extern unsigned long get_wchan(struct task_struct *p); + +#define KSTK_EIP(tsk) ((tsk)->thread.cpu_context.pc) +#define KSTK_ESP(tsk) ((tsk)->thread.cpu_context.ksp) + +#define ARCH_HAS_PREFETCH + +static inline void prefetch(const void *x) +{ + const char *c = x; + asm volatile("pref %0" : : "r"(c)); +} +#define PREFETCH_STRIDE L1_CACHE_BYTES + +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_AVR32_PROCESSOR_H */
diff --git a/include/asm-avr32/ptrace.h b/include/asm-avr32/ptrace.h new file mode 100644 index 0000000..60f0f19 --- /dev/null +++ b/include/asm-avr32/ptrace.h
@@ -0,0 +1,154 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_PTRACE_H +#define __ASM_AVR32_PTRACE_H + +#define PTRACE_GETREGS 12 +#define PTRACE_SETREGS 13 + +/* + * Status Register bits + */ +#define SR_H 0x40000000 +#define SR_R 0x20000000 +#define SR_J 0x10000000 +#define SR_DM 0x08000000 +#define SR_D 0x04000000 +#define MODE_NMI 0x01c00000 +#define MODE_EXCEPTION 0x01800000 +#define MODE_INT3 0x01400000 +#define MODE_INT2 0x01000000 +#define MODE_INT1 0x00c00000 +#define MODE_INT0 0x00800000 +#define MODE_SUPERVISOR 0x00400000 +#define MODE_USER 0x00000000 +#define MODE_MASK 0x01c00000 +#define SR_EM 0x00200000 +#define SR_I3M 0x00100000 +#define SR_I2M 0x00080000 +#define SR_I1M 0x00040000 +#define SR_I0M 0x00020000 +#define SR_GM 0x00010000 + +#define SR_H_BIT 30 +#define SR_R_BIT 29 +#define SR_J_BIT 28 +#define SR_DM_BIT 27 +#define SR_D_BIT 26 +#define MODE_SHIFT 22 +#define SR_EM_BIT 21 +#define SR_I3M_BIT 20 +#define SR_I2M_BIT 19 +#define SR_I1M_BIT 18 +#define SR_I0M_BIT 17 +#define SR_GM_BIT 16 + +/* The user-visible part */ +#define SR_L 0x00000020 +#define SR_Q 0x00000010 +#define SR_V 0x00000008 +#define SR_N 0x00000004 +#define SR_Z 0x00000002 +#define SR_C 0x00000001 + +#define SR_L_BIT 5 +#define SR_Q_BIT 4 +#define SR_V_BIT 3 +#define SR_N_BIT 2 +#define SR_Z_BIT 1 +#define SR_C_BIT 0 + +/* + * The order is defined by the stmts instruction. r0 is stored first, + * so it gets the highest address. + * + * Registers 0-12 are general-purpose registers (r12 is normally used for + * the function return value). + * Register 13 is the stack pointer + * Register 14 is the link register + * Register 15 is the program counter (retrieved from the RAR sysreg) + */ +#define FRAME_SIZE_FULL 72 +#define REG_R12_ORIG 68 +#define REG_R0 64 +#define REG_R1 60 +#define REG_R2 56 +#define REG_R3 52 +#define REG_R4 48 +#define REG_R5 44 +#define REG_R6 40 +#define REG_R7 36 +#define REG_R8 32 +#define REG_R9 28 +#define REG_R10 24 +#define REG_R11 20 +#define REG_R12 16 +#define REG_SP 12 +#define REG_LR 8 + +#define FRAME_SIZE_MIN 8 +#define REG_PC 4 +#define REG_SR 0 + +#ifndef __ASSEMBLY__ +struct pt_regs { + /* These are always saved */ + unsigned long sr; + unsigned long pc; + + /* These are sometimes saved */ + unsigned long lr; + unsigned long sp; + unsigned long r12; + unsigned long r11; + unsigned long r10; + unsigned long r9; + unsigned long r8; + unsigned long r7; + unsigned long r6; + unsigned long r5; + unsigned long r4; + unsigned long r3; + unsigned long r2; + unsigned long r1; + unsigned long r0; + + /* Only saved on system call */ + unsigned long r12_orig; +}; + +#ifdef __KERNEL__ +# define user_mode(regs) (((regs)->sr & MODE_MASK) == MODE_USER) +extern void show_regs (struct pt_regs *); + +static __inline__ int valid_user_regs(struct pt_regs *regs) +{ + /* + * Some of the Java bits might be acceptable if/when we + * implement some support for that stuff... + */ + if ((regs->sr & 0xffff0000) == 0) + return 1; + + /* + * Force status register flags to be sane and report this + * illegal behaviour... + */ + regs->sr &= 0x0000ffff; + return 0; +} + +#define instruction_pointer(regs) ((regs)->pc) + +#define profile_pc(regs) instruction_pointer(regs) + +#endif /* __KERNEL__ */ + +#endif /* ! __ASSEMBLY__ */ + +#endif /* __ASM_AVR32_PTRACE_H */
diff --git a/include/asm-avr32/resource.h b/include/asm-avr32/resource.h new file mode 100644 index 0000000..c6dd101 --- /dev/null +++ b/include/asm-avr32/resource.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_RESOURCE_H +#define __ASM_AVR32_RESOURCE_H + +#include <asm-generic/resource.h> + +#endif /* __ASM_AVR32_RESOURCE_H */
diff --git a/include/asm-avr32/scatterlist.h b/include/asm-avr32/scatterlist.h new file mode 100644 index 0000000..bfe7d75 --- /dev/null +++ b/include/asm-avr32/scatterlist.h
@@ -0,0 +1,21 @@ +#ifndef __ASM_AVR32_SCATTERLIST_H +#define __ASM_AVR32_SCATTERLIST_H + +struct scatterlist { + struct page *page; + unsigned int offset; + dma_addr_t dma_address; + unsigned int length; +}; + +/* These macros should be used after a pci_map_sg call has been done + * to get bus addresses of each of the SG entries and their lengths. + * You should only work with the number of sg entries pci_map_sg + * returns. + */ +#define sg_dma_address(sg) ((sg)->dma_address) +#define sg_dma_len(sg) ((sg)->length) + +#define ISA_DMA_THRESHOLD (0xffffffff) + +#endif /* __ASM_AVR32_SCATTERLIST_H */
diff --git a/include/asm-avr32/sections.h b/include/asm-avr32/sections.h new file mode 100644 index 0000000..aa14252 --- /dev/null +++ b/include/asm-avr32/sections.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_SECTIONS_H +#define __ASM_AVR32_SECTIONS_H + +#include <asm-generic/sections.h> + +#endif /* __ASM_AVR32_SECTIONS_H */
diff --git a/include/asm-avr32/semaphore.h b/include/asm-avr32/semaphore.h new file mode 100644 index 0000000..ef99ddc --- /dev/null +++ b/include/asm-avr32/semaphore.h
@@ -0,0 +1,109 @@ +/* + * SMP- and interrupt-safe semaphores. + * + * Copyright (C) 2006 Atmel Corporation + * + * Based on include/asm-i386/semaphore.h + * Copyright (C) 1996 Linus Torvalds + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_SEMAPHORE_H +#define __ASM_AVR32_SEMAPHORE_H + +#include <linux/linkage.h> + +#include <asm/system.h> +#include <asm/atomic.h> +#include <linux/wait.h> +#include <linux/rwsem.h> + +struct semaphore { + atomic_t count; + int sleepers; + wait_queue_head_t wait; +}; + +#define __SEMAPHORE_INITIALIZER(name, n) \ +{ \ + .count = ATOMIC_INIT(n), \ + .wait = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \ +} + +#define __DECLARE_SEMAPHORE_GENERIC(name,count) \ + struct semaphore name = __SEMAPHORE_INITIALIZER(name,count) + +#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1) +#define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0) + +static inline void sema_init (struct semaphore *sem, int val) +{ + atomic_set(&sem->count, val); + sem->sleepers = 0; + init_waitqueue_head(&sem->wait); +} + +static inline void init_MUTEX (struct semaphore *sem) +{ + sema_init(sem, 1); +} + +static inline void init_MUTEX_LOCKED (struct semaphore *sem) +{ + sema_init(sem, 0); +} + +void __down(struct semaphore * sem); +int __down_interruptible(struct semaphore * sem); +void __up(struct semaphore * sem); + +/* + * This is ugly, but we want the default case to fall through. + * "__down_failed" is a special asm handler that calls the C + * routine that actually waits. See arch/i386/kernel/semaphore.c + */ +static inline void down(struct semaphore * sem) +{ + might_sleep(); + if (unlikely(atomic_dec_return (&sem->count) < 0)) + __down (sem); +} + +/* + * Interruptible try to acquire a semaphore. If we obtained + * it, return zero. If we were interrupted, returns -EINTR + */ +static inline int down_interruptible(struct semaphore * sem) +{ + int ret = 0; + + might_sleep(); + if (unlikely(atomic_dec_return (&sem->count) < 0)) + ret = __down_interruptible (sem); + return ret; +} + +/* + * Non-blockingly attempt to down() a semaphore. + * Returns zero if we acquired it + */ +static inline int down_trylock(struct semaphore * sem) +{ + return atomic_dec_if_positive(&sem->count) < 0; +} + +/* + * Note! This is subtle. We jump to wake people up only if + * the semaphore was negative (== somebody was waiting on it). + * The default case (no contention) will result in NO + * jumps for both down() and up(). + */ +static inline void up(struct semaphore * sem) +{ + if (unlikely(atomic_inc_return (&sem->count) <= 0)) + __up (sem); +} + +#endif /*__ASM_AVR32_SEMAPHORE_H */
diff --git a/include/asm-avr32/sembuf.h b/include/asm-avr32/sembuf.h new file mode 100644 index 0000000..e472216 --- /dev/null +++ b/include/asm-avr32/sembuf.h
@@ -0,0 +1,25 @@ +#ifndef __ASM_AVR32_SEMBUF_H +#define __ASM_AVR32_SEMBUF_H + +/* +* The semid64_ds structure for AVR32 architecture. + * Note extra padding because this structure is passed back and forth + * between kernel and user space. + * + * Pad space is left for: + * - 64-bit time_t to solve y2038 problem + * - 2 miscellaneous 32-bit values + */ + +struct semid64_ds { + struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ + __kernel_time_t sem_otime; /* last semop time */ + unsigned long __unused1; + __kernel_time_t sem_ctime; /* last change time */ + unsigned long __unused2; + unsigned long sem_nsems; /* no. of semaphores in array */ + unsigned long __unused3; + unsigned long __unused4; +}; + +#endif /* __ASM_AVR32_SEMBUF_H */
diff --git a/include/asm-avr32/setup.h b/include/asm-avr32/setup.h new file mode 100644 index 0000000..10193da --- /dev/null +++ b/include/asm-avr32/setup.h
@@ -0,0 +1,141 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * Based on linux/include/asm-arm/setup.h + * Copyright (C) 1997-1999 Russel King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_SETUP_H__ +#define __ASM_AVR32_SETUP_H__ + +#define COMMAND_LINE_SIZE 256 + +/* Magic number indicating that a tag table is present */ +#define ATAG_MAGIC 0xa2a25441 + +#ifndef __ASSEMBLY__ + +/* + * Generic memory range, used by several tags. + * + * addr is always physical. + * size is measured in bytes. + * next is for use by the OS, e.g. for grouping regions into + * linked lists. + */ +struct tag_mem_range { + u32 addr; + u32 size; + struct tag_mem_range * next; +}; + +/* The list ends with an ATAG_NONE node. */ +#define ATAG_NONE 0x00000000 + +struct tag_header { + u32 size; + u32 tag; +}; + +/* The list must start with an ATAG_CORE node */ +#define ATAG_CORE 0x54410001 + +struct tag_core { + u32 flags; + u32 pagesize; + u32 rootdev; +}; + +/* it is allowed to have multiple ATAG_MEM nodes */ +#define ATAG_MEM 0x54410002 +/* ATAG_MEM uses tag_mem_range */ + +/* command line: \0 terminated string */ +#define ATAG_CMDLINE 0x54410003 + +struct tag_cmdline { + char cmdline[1]; /* this is the minimum size */ +}; + +/* Ramdisk image (may be compressed) */ +#define ATAG_RDIMG 0x54410004 +/* ATAG_RDIMG uses tag_mem_range */ + +/* Information about various clocks present in the system */ +#define ATAG_CLOCK 0x54410005 + +struct tag_clock { + u32 clock_id; /* Which clock are we talking about? */ + u32 clock_flags; /* Special features */ + u64 clock_hz; /* Clock speed in Hz */ +}; + +/* The clock types we know about */ +#define CLOCK_BOOTCPU 0 + +/* Memory reserved for the system (e.g. the bootloader) */ +#define ATAG_RSVD_MEM 0x54410006 +/* ATAG_RSVD_MEM uses tag_mem_range */ + +/* Ethernet information */ + +#define ATAG_ETHERNET 0x54410007 + +struct tag_ethernet { + u8 mac_index; + u8 mii_phy_addr; + u8 hw_address[6]; +}; + +#define ETH_INVALID_PHY 0xff + +struct tag { + struct tag_header hdr; + union { + struct tag_core core; + struct tag_mem_range mem_range; + struct tag_cmdline cmdline; + struct tag_clock clock; + struct tag_ethernet ethernet; + } u; +}; + +struct tagtable { + u32 tag; + int (*parse)(struct tag *); +}; + +#define __tag __attribute_used__ __attribute__((__section__(".taglist"))) +#define __tagtable(tag, fn) \ + static struct tagtable __tagtable_##fn __tag = { tag, fn } + +#define tag_member_present(tag,member) \ + ((unsigned long)(&((struct tag *)0L)->member + 1) \ + <= (tag)->hdr.size * 4) + +#define tag_next(t) ((struct tag *)((u32 *)(t) + (t)->hdr.size)) +#define tag_size(type) ((sizeof(struct tag_header) + sizeof(struct type)) >> 2) + +#define for_each_tag(t,base) \ + for (t = base; t->hdr.size; t = tag_next(t)) + +extern struct tag_mem_range *mem_phys; +extern struct tag_mem_range *mem_reserved; +extern struct tag_mem_range *mem_ramdisk; + +extern struct tag *bootloader_tags; + +extern void setup_bootmem(void); +extern void setup_processor(void); +extern void board_setup_fbmem(unsigned long fbmem_start, + unsigned long fbmem_size); + +/* Chip-specific hook to enable the use of SDRAM */ +void chip_enable_sdram(void); + +#endif /* !__ASSEMBLY__ */ + +#endif /* __ASM_AVR32_SETUP_H__ */
diff --git a/include/asm-avr32/shmbuf.h b/include/asm-avr32/shmbuf.h new file mode 100644 index 0000000..c62fba4 --- /dev/null +++ b/include/asm-avr32/shmbuf.h
@@ -0,0 +1,42 @@ +#ifndef __ASM_AVR32_SHMBUF_H +#define __ASM_AVR32_SHMBUF_H + +/* + * The shmid64_ds structure for i386 architecture. + * Note extra padding because this structure is passed back and forth + * between kernel and user space. + * + * Pad space is left for: + * - 64-bit time_t to solve y2038 problem + * - 2 miscellaneous 32-bit values + */ + +struct shmid64_ds { + struct ipc64_perm shm_perm; /* operation perms */ + size_t shm_segsz; /* size of segment (bytes) */ + __kernel_time_t shm_atime; /* last attach time */ + unsigned long __unused1; + __kernel_time_t shm_dtime; /* last detach time */ + unsigned long __unused2; + __kernel_time_t shm_ctime; /* last change time */ + unsigned long __unused3; + __kernel_pid_t shm_cpid; /* pid of creator */ + __kernel_pid_t shm_lpid; /* pid of last operator */ + unsigned long shm_nattch; /* no. of current attaches */ + unsigned long __unused4; + unsigned long __unused5; +}; + +struct shminfo64 { + unsigned long shmmax; + unsigned long shmmin; + unsigned long shmmni; + unsigned long shmseg; + unsigned long shmall; + unsigned long __unused1; + unsigned long __unused2; + unsigned long __unused3; + unsigned long __unused4; +}; + +#endif /* __ASM_AVR32_SHMBUF_H */
diff --git a/include/asm-avr32/shmparam.h b/include/asm-avr32/shmparam.h new file mode 100644 index 0000000..3681266 --- /dev/null +++ b/include/asm-avr32/shmparam.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_SHMPARAM_H +#define __ASM_AVR32_SHMPARAM_H + +#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ + +#endif /* __ASM_AVR32_SHMPARAM_H */
diff --git a/include/asm-avr32/sigcontext.h b/include/asm-avr32/sigcontext.h new file mode 100644 index 0000000..e04062b --- /dev/null +++ b/include/asm-avr32/sigcontext.h
@@ -0,0 +1,34 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_SIGCONTEXT_H +#define __ASM_AVR32_SIGCONTEXT_H + +struct sigcontext { + unsigned long oldmask; + + /* CPU registers */ + unsigned long sr; + unsigned long pc; + unsigned long lr; + unsigned long sp; + unsigned long r12; + unsigned long r11; + unsigned long r10; + unsigned long r9; + unsigned long r8; + unsigned long r7; + unsigned long r6; + unsigned long r5; + unsigned long r4; + unsigned long r3; + unsigned long r2; + unsigned long r1; + unsigned long r0; +}; + +#endif /* __ASM_AVR32_SIGCONTEXT_H */
diff --git a/include/asm-avr32/siginfo.h b/include/asm-avr32/siginfo.h new file mode 100644 index 0000000..5ee93f4 --- /dev/null +++ b/include/asm-avr32/siginfo.h
@@ -0,0 +1,6 @@ +#ifndef _AVR32_SIGINFO_H +#define _AVR32_SIGINFO_H + +#include <asm-generic/siginfo.h> + +#endif
diff --git a/include/asm-avr32/signal.h b/include/asm-avr32/signal.h new file mode 100644 index 0000000..caffefe --- /dev/null +++ b/include/asm-avr32/signal.h
@@ -0,0 +1,168 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_SIGNAL_H +#define __ASM_AVR32_SIGNAL_H + +#include <linux/types.h> + +/* Avoid too many header ordering problems. */ +struct siginfo; + +#ifdef __KERNEL__ +/* Most things should be clean enough to redefine this at will, if care + is taken to make libc match. */ + +#define _NSIG 64 +#define _NSIG_BPW 32 +#define _NSIG_WORDS (_NSIG / _NSIG_BPW) + +typedef unsigned long old_sigset_t; /* at least 32 bits */ + +typedef struct { + unsigned long sig[_NSIG_WORDS]; +} sigset_t; + +#else +/* Here we must cater to libcs that poke about in kernel headers. */ + +#define NSIG 32 +typedef unsigned long sigset_t; + +#endif /* __KERNEL__ */ + +#define SIGHUP 1 +#define SIGINT 2 +#define SIGQUIT 3 +#define SIGILL 4 +#define SIGTRAP 5 +#define SIGABRT 6 +#define SIGIOT 6 +#define SIGBUS 7 +#define SIGFPE 8 +#define SIGKILL 9 +#define SIGUSR1 10 +#define SIGSEGV 11 +#define SIGUSR2 12 +#define SIGPIPE 13 +#define SIGALRM 14 +#define SIGTERM 15 +#define SIGSTKFLT 16 +#define SIGCHLD 17 +#define SIGCONT 18 +#define SIGSTOP 19 +#define SIGTSTP 20 +#define SIGTTIN 21 +#define SIGTTOU 22 +#define SIGURG 23 +#define SIGXCPU 24 +#define SIGXFSZ 25 +#define SIGVTALRM 26 +#define SIGPROF 27 +#define SIGWINCH 28 +#define SIGIO 29 +#define SIGPOLL SIGIO +/* +#define SIGLOST 29 +*/ +#define SIGPWR 30 +#define SIGSYS 31 +#define SIGUNUSED 31 + +/* These should not be considered constants from userland. */ +#define SIGRTMIN 32 +#define SIGRTMAX (_NSIG-1) + +/* + * SA_FLAGS values: + * + * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. + * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. + * SA_SIGINFO deliver the signal with SIGINFO structs + * SA_ONSTACK indicates that a registered stack_t will be used. + * SA_RESTART flag to get restarting signals (which were the default long ago) + * SA_NODEFER prevents the current signal from being masked in the handler. + * SA_RESETHAND clears the handler when the signal is delivered. + * + * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single + * Unix names RESETHAND and NODEFER respectively. + */ +#define SA_NOCLDSTOP 0x00000001 +#define SA_NOCLDWAIT 0x00000002 +#define SA_SIGINFO 0x00000004 +#define SA_RESTORER 0x04000000 +#define SA_ONSTACK 0x08000000 +#define SA_RESTART 0x10000000 +#define SA_NODEFER 0x40000000 +#define SA_RESETHAND 0x80000000 + +#define SA_NOMASK SA_NODEFER +#define SA_ONESHOT SA_RESETHAND + +/* + * sigaltstack controls + */ +#define SS_ONSTACK 1 +#define SS_DISABLE 2 + +#define MINSIGSTKSZ 2048 +#define SIGSTKSZ 8192 + +#include <asm-generic/signal.h> + +#ifdef __KERNEL__ +struct old_sigaction { + __sighandler_t sa_handler; + old_sigset_t sa_mask; + unsigned long sa_flags; + __sigrestore_t sa_restorer; +}; + +struct sigaction { + __sighandler_t sa_handler; + unsigned long sa_flags; + __sigrestore_t sa_restorer; + sigset_t sa_mask; /* mask last for extensibility */ +}; + +struct k_sigaction { + struct sigaction sa; +}; +#else +/* Here we must cater to libcs that poke about in kernel headers. */ + +struct sigaction { + union { + __sighandler_t _sa_handler; + void (*_sa_sigaction)(int, struct siginfo *, void *); + } _u; + sigset_t sa_mask; + unsigned long sa_flags; + void (*sa_restorer)(void); +}; + +#define sa_handler _u._sa_handler +#define sa_sigaction _u._sa_sigaction + +#endif /* __KERNEL__ */ + +typedef struct sigaltstack { + void __user *ss_sp; + int ss_flags; + size_t ss_size; +} stack_t; + +#ifdef __KERNEL__ + +#include <asm/sigcontext.h> +#undef __HAVE_ARCH_SIG_BITOPS + +#define ptrace_signal_deliver(regs, cookie) do { } while (0) + +#endif /* __KERNEL__ */ + +#endif
diff --git a/include/asm-avr32/socket.h b/include/asm-avr32/socket.h new file mode 100644 index 0000000..543229d --- /dev/null +++ b/include/asm-avr32/socket.h
@@ -0,0 +1,53 @@ +#ifndef __ASM_AVR32_SOCKET_H +#define __ASM_AVR32_SOCKET_H + +#include <asm/sockios.h> + +/* For setsockopt(2) */ +#define SOL_SOCKET 1 + +#define SO_DEBUG 1 +#define SO_REUSEADDR 2 +#define SO_TYPE 3 +#define SO_ERROR 4 +#define SO_DONTROUTE 5 +#define SO_BROADCAST 6 +#define SO_SNDBUF 7 +#define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 +#define SO_KEEPALIVE 9 +#define SO_OOBINLINE 10 +#define SO_NO_CHECK 11 +#define SO_PRIORITY 12 +#define SO_LINGER 13 +#define SO_BSDCOMPAT 14 +/* To add :#define SO_REUSEPORT 15 */ +#define SO_PASSCRED 16 +#define SO_PEERCRED 17 +#define SO_RCVLOWAT 18 +#define SO_SNDLOWAT 19 +#define SO_RCVTIMEO 20 +#define SO_SNDTIMEO 21 + +/* Security levels - as per NRL IPv6 - don't actually do anything */ +#define SO_SECURITY_AUTHENTICATION 22 +#define SO_SECURITY_ENCRYPTION_TRANSPORT 23 +#define SO_SECURITY_ENCRYPTION_NETWORK 24 + +#define SO_BINDTODEVICE 25 + +/* Socket filtering */ +#define SO_ATTACH_FILTER 26 +#define SO_DETACH_FILTER 27 + +#define SO_PEERNAME 28 +#define SO_TIMESTAMP 29 +#define SCM_TIMESTAMP SO_TIMESTAMP + +#define SO_ACCEPTCONN 30 + +#define SO_PEERSEC 31 +#define SO_PASSSEC 34 + +#endif /* __ASM_AVR32_SOCKET_H */
diff --git a/include/asm-avr32/sockios.h b/include/asm-avr32/sockios.h new file mode 100644 index 0000000..84f3d65 --- /dev/null +++ b/include/asm-avr32/sockios.h
@@ -0,0 +1,12 @@ +#ifndef __ASM_AVR32_SOCKIOS_H +#define __ASM_AVR32_SOCKIOS_H + +/* Socket-level I/O control calls. */ +#define FIOSETOWN 0x8901 +#define SIOCSPGRP 0x8902 +#define FIOGETOWN 0x8903 +#define SIOCGPGRP 0x8904 +#define SIOCATMARK 0x8905 +#define SIOCGSTAMP 0x8906 /* Get stamp */ + +#endif /* __ASM_AVR32_SOCKIOS_H */
diff --git a/include/asm-avr32/stat.h b/include/asm-avr32/stat.h new file mode 100644 index 0000000..e72881e --- /dev/null +++ b/include/asm-avr32/stat.h
@@ -0,0 +1,79 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_STAT_H +#define __ASM_AVR32_STAT_H + +struct __old_kernel_stat { + unsigned short st_dev; + unsigned short st_ino; + unsigned short st_mode; + unsigned short st_nlink; + unsigned short st_uid; + unsigned short st_gid; + unsigned short st_rdev; + unsigned long st_size; + unsigned long st_atime; + unsigned long st_mtime; + unsigned long st_ctime; +}; + +struct stat { + unsigned long st_dev; + unsigned long st_ino; + unsigned short st_mode; + unsigned short st_nlink; + unsigned short st_uid; + unsigned short st_gid; + unsigned long st_rdev; + unsigned long st_size; + unsigned long st_blksize; + unsigned long st_blocks; + unsigned long st_atime; + unsigned long st_atime_nsec; + unsigned long st_mtime; + unsigned long st_mtime_nsec; + unsigned long st_ctime; + unsigned long st_ctime_nsec; + unsigned long __unused4; + unsigned long __unused5; +}; + +#define STAT_HAVE_NSEC 1 + +struct stat64 { + unsigned long long st_dev; + + unsigned long long st_ino; + unsigned int st_mode; + unsigned int st_nlink; + + unsigned long st_uid; + unsigned long st_gid; + + unsigned long long st_rdev; + + long long st_size; + unsigned long __pad1; /* align 64-bit st_blocks */ + unsigned long st_blksize; + + unsigned long long st_blocks; /* Number 512-byte blocks allocated. */ + + unsigned long st_atime; + unsigned long st_atime_nsec; + + unsigned long st_mtime; + unsigned long st_mtime_nsec; + + unsigned long st_ctime; + unsigned long st_ctime_nsec; + + unsigned long __unused1; + unsigned long __unused2; +}; + +#endif /* __ASM_AVR32_STAT_H */
diff --git a/include/asm-avr32/statfs.h b/include/asm-avr32/statfs.h new file mode 100644 index 0000000..2961bd1 --- /dev/null +++ b/include/asm-avr32/statfs.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_STATFS_H +#define __ASM_AVR32_STATFS_H + +#include <asm-generic/statfs.h> + +#endif /* __ASM_AVR32_STATFS_H */
diff --git a/include/asm-avr32/string.h b/include/asm-avr32/string.h new file mode 100644 index 0000000..c91a623 --- /dev/null +++ b/include/asm-avr32/string.h
@@ -0,0 +1,17 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_STRING_H +#define __ASM_AVR32_STRING_H + +#define __HAVE_ARCH_MEMSET +extern void *memset(void *b, int c, size_t len); + +#define __HAVE_ARCH_MEMCPY +extern void *memcpy(void *to, const void *from, size_t len); + +#endif /* __ASM_AVR32_STRING_H */
diff --git a/include/asm-avr32/sysreg.h b/include/asm-avr32/sysreg.h new file mode 100644 index 0000000..f91975f --- /dev/null +++ b/include/asm-avr32/sysreg.h
@@ -0,0 +1,332 @@ +/* + * AVR32 System Registers + * + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_SYSREG_H__ +#define __ASM_AVR32_SYSREG_H__ + +/* sysreg register offsets */ +#define SYSREG_SR 0x0000 +#define SYSREG_EVBA 0x0004 +#define SYSREG_ACBA 0x0008 +#define SYSREG_CPUCR 0x000c +#define SYSREG_ECR 0x0010 +#define SYSREG_RSR_SUP 0x0014 +#define SYSREG_RSR_INT0 0x0018 +#define SYSREG_RSR_INT1 0x001c +#define SYSREG_RSR_INT2 0x0020 +#define SYSREG_RSR_INT3 0x0024 +#define SYSREG_RSR_EX 0x0028 +#define SYSREG_RSR_NMI 0x002c +#define SYSREG_RSR_DBG 0x0030 +#define SYSREG_RAR_SUP 0x0034 +#define SYSREG_RAR_INT0 0x0038 +#define SYSREG_RAR_INT1 0x003c +#define SYSREG_RAR_INT2 0x0040 +#define SYSREG_RAR_INT3 0x0044 +#define SYSREG_RAR_EX 0x0048 +#define SYSREG_RAR_NMI 0x004c +#define SYSREG_RAR_DBG 0x0050 +#define SYSREG_JECR 0x0054 +#define SYSREG_JOSP 0x0058 +#define SYSREG_JAVA_LV0 0x005c +#define SYSREG_JAVA_LV1 0x0060 +#define SYSREG_JAVA_LV2 0x0064 +#define SYSREG_JAVA_LV3 0x0068 +#define SYSREG_JAVA_LV4 0x006c +#define SYSREG_JAVA_LV5 0x0070 +#define SYSREG_JAVA_LV6 0x0074 +#define SYSREG_JAVA_LV7 0x0078 +#define SYSREG_JTBA 0x007c +#define SYSREG_JBCR 0x0080 +#define SYSREG_CONFIG0 0x0100 +#define SYSREG_CONFIG1 0x0104 +#define SYSREG_COUNT 0x0108 +#define SYSREG_COMPARE 0x010c +#define SYSREG_TLBEHI 0x0110 +#define SYSREG_TLBELO 0x0114 +#define SYSREG_PTBR 0x0118 +#define SYSREG_TLBEAR 0x011c +#define SYSREG_MMUCR 0x0120 +#define SYSREG_TLBARLO 0x0124 +#define SYSREG_TLBARHI 0x0128 +#define SYSREG_PCCNT 0x012c +#define SYSREG_PCNT0 0x0130 +#define SYSREG_PCNT1 0x0134 +#define SYSREG_PCCR 0x0138 +#define SYSREG_BEAR 0x013c + +/* Bitfields in SR */ +#define SYSREG_SR_C_OFFSET 0 +#define SYSREG_SR_C_SIZE 1 +#define SYSREG_Z_OFFSET 1 +#define SYSREG_Z_SIZE 1 +#define SYSREG_SR_N_OFFSET 2 +#define SYSREG_SR_N_SIZE 1 +#define SYSREG_SR_V_OFFSET 3 +#define SYSREG_SR_V_SIZE 1 +#define SYSREG_Q_OFFSET 4 +#define SYSREG_Q_SIZE 1 +#define SYSREG_GM_OFFSET 16 +#define SYSREG_GM_SIZE 1 +#define SYSREG_I0M_OFFSET 17 +#define SYSREG_I0M_SIZE 1 +#define SYSREG_I1M_OFFSET 18 +#define SYSREG_I1M_SIZE 1 +#define SYSREG_I2M_OFFSET 19 +#define SYSREG_I2M_SIZE 1 +#define SYSREG_I3M_OFFSET 20 +#define SYSREG_I3M_SIZE 1 +#define SYSREG_EM_OFFSET 21 +#define SYSREG_EM_SIZE 1 +#define SYSREG_M0_OFFSET 22 +#define SYSREG_M0_SIZE 1 +#define SYSREG_M1_OFFSET 23 +#define SYSREG_M1_SIZE 1 +#define SYSREG_M2_OFFSET 24 +#define SYSREG_M2_SIZE 1 +#define SYSREG_SR_D_OFFSET 26 +#define SYSREG_SR_D_SIZE 1 +#define SYSREG_DM_OFFSET 27 +#define SYSREG_DM_SIZE 1 +#define SYSREG_SR_J_OFFSET 28 +#define SYSREG_SR_J_SIZE 1 +#define SYSREG_R_OFFSET 29 +#define SYSREG_R_SIZE 1 +#define SYSREG_H_OFFSET 30 +#define SYSREG_H_SIZE 1 + +/* Bitfields in EVBA */ + +/* Bitfields in ACBA */ + +/* Bitfields in CPUCR */ +#define SYSREG_BI_OFFSET 0 +#define SYSREG_BI_SIZE 1 +#define SYSREG_BE_OFFSET 1 +#define SYSREG_BE_SIZE 1 +#define SYSREG_FE_OFFSET 2 +#define SYSREG_FE_SIZE 1 +#define SYSREG_RE_OFFSET 3 +#define SYSREG_RE_SIZE 1 +#define SYSREG_IBE_OFFSET 4 +#define SYSREG_IBE_SIZE 1 +#define SYSREG_IEE_OFFSET 5 +#define SYSREG_IEE_SIZE 1 + +/* Bitfields in ECR */ +#define SYSREG_ECR_OFFSET 0 +#define SYSREG_ECR_SIZE 32 + +/* Bitfields in RSR_SUP */ + +/* Bitfields in RSR_INT0 */ + +/* Bitfields in RSR_INT1 */ + +/* Bitfields in RSR_INT2 */ + +/* Bitfields in RSR_INT3 */ + +/* Bitfields in RSR_EX */ + +/* Bitfields in RSR_NMI */ + +/* Bitfields in RSR_DBG */ + +/* Bitfields in RAR_SUP */ + +/* Bitfields in RAR_INT0 */ + +/* Bitfields in RAR_INT1 */ + +/* Bitfields in RAR_INT2 */ + +/* Bitfields in RAR_INT3 */ + +/* Bitfields in RAR_EX */ + +/* Bitfields in RAR_NMI */ + +/* Bitfields in RAR_DBG */ + +/* Bitfields in JECR */ + +/* Bitfields in JOSP */ + +/* Bitfields in JAVA_LV0 */ + +/* Bitfields in JAVA_LV1 */ + +/* Bitfields in JAVA_LV2 */ + +/* Bitfields in JAVA_LV3 */ + +/* Bitfields in JAVA_LV4 */ + +/* Bitfields in JAVA_LV5 */ + +/* Bitfields in JAVA_LV6 */ + +/* Bitfields in JAVA_LV7 */ + +/* Bitfields in JTBA */ + +/* Bitfields in JBCR */ + +/* Bitfields in CONFIG0 */ +#define SYSREG_CONFIG0_D_OFFSET 1 +#define SYSREG_CONFIG0_D_SIZE 1 +#define SYSREG_CONFIG0_S_OFFSET 2 +#define SYSREG_CONFIG0_S_SIZE 1 +#define SYSREG_O_OFFSET 3 +#define SYSREG_O_SIZE 1 +#define SYSREG_P_OFFSET 4 +#define SYSREG_P_SIZE 1 +#define SYSREG_CONFIG0_J_OFFSET 5 +#define SYSREG_CONFIG0_J_SIZE 1 +#define SYSREG_F_OFFSET 6 +#define SYSREG_F_SIZE 1 +#define SYSREG_MMUT_OFFSET 7 +#define SYSREG_MMUT_SIZE 3 +#define SYSREG_AR_OFFSET 10 +#define SYSREG_AR_SIZE 3 +#define SYSREG_AT_OFFSET 13 +#define SYSREG_AT_SIZE 3 +#define SYSREG_PROCESSORREVISION_OFFSET 16 +#define SYSREG_PROCESSORREVISION_SIZE 8 +#define SYSREG_PROCESSORID_OFFSET 24 +#define SYSREG_PROCESSORID_SIZE 8 + +/* Bitfields in CONFIG1 */ +#define SYSREG_DASS_OFFSET 0 +#define SYSREG_DASS_SIZE 3 +#define SYSREG_DLSZ_OFFSET 3 +#define SYSREG_DLSZ_SIZE 3 +#define SYSREG_DSET_OFFSET 6 +#define SYSREG_DSET_SIZE 4 +#define SYSREG_IASS_OFFSET 10 +#define SYSREG_IASS_SIZE 2 +#define SYSREG_ILSZ_OFFSET 13 +#define SYSREG_ILSZ_SIZE 3 +#define SYSREG_ISET_OFFSET 16 +#define SYSREG_ISET_SIZE 4 +#define SYSREG_DMMUSZ_OFFSET 20 +#define SYSREG_DMMUSZ_SIZE 6 +#define SYSREG_IMMUSZ_OFFSET 26 +#define SYSREG_IMMUSZ_SIZE 6 + +/* Bitfields in COUNT */ + +/* Bitfields in COMPARE */ + +/* Bitfields in TLBEHI */ +#define SYSREG_ASID_OFFSET 0 +#define SYSREG_ASID_SIZE 8 +#define SYSREG_TLBEHI_I_OFFSET 8 +#define SYSREG_TLBEHI_I_SIZE 1 +#define SYSREG_TLBEHI_V_OFFSET 9 +#define SYSREG_TLBEHI_V_SIZE 1 +#define SYSREG_VPN_OFFSET 10 +#define SYSREG_VPN_SIZE 22 + +/* Bitfields in TLBELO */ +#define SYSREG_W_OFFSET 0 +#define SYSREG_W_SIZE 1 +#define SYSREG_TLBELO_D_OFFSET 1 +#define SYSREG_TLBELO_D_SIZE 1 +#define SYSREG_SZ_OFFSET 2 +#define SYSREG_SZ_SIZE 2 +#define SYSREG_AP_OFFSET 4 +#define SYSREG_AP_SIZE 3 +#define SYSREG_B_OFFSET 7 +#define SYSREG_B_SIZE 1 +#define SYSREG_G_OFFSET 8 +#define SYSREG_G_SIZE 1 +#define SYSREG_TLBELO_C_OFFSET 9 +#define SYSREG_TLBELO_C_SIZE 1 +#define SYSREG_PFN_OFFSET 10 +#define SYSREG_PFN_SIZE 22 + +/* Bitfields in PTBR */ + +/* Bitfields in TLBEAR */ + +/* Bitfields in MMUCR */ +#define SYSREG_E_OFFSET 0 +#define SYSREG_E_SIZE 1 +#define SYSREG_M_OFFSET 1 +#define SYSREG_M_SIZE 1 +#define SYSREG_MMUCR_I_OFFSET 2 +#define SYSREG_MMUCR_I_SIZE 1 +#define SYSREG_MMUCR_N_OFFSET 3 +#define SYSREG_MMUCR_N_SIZE 1 +#define SYSREG_MMUCR_S_OFFSET 4 +#define SYSREG_MMUCR_S_SIZE 1 +#define SYSREG_DLA_OFFSET 8 +#define SYSREG_DLA_SIZE 6 +#define SYSREG_DRP_OFFSET 14 +#define SYSREG_DRP_SIZE 6 +#define SYSREG_ILA_OFFSET 20 +#define SYSREG_ILA_SIZE 6 +#define SYSREG_IRP_OFFSET 26 +#define SYSREG_IRP_SIZE 6 + +/* Bitfields in TLBARLO */ + +/* Bitfields in TLBARHI */ + +/* Bitfields in PCCNT */ + +/* Bitfields in PCNT0 */ + +/* Bitfields in PCNT1 */ + +/* Bitfields in PCCR */ + +/* Bitfields in BEAR */ + +/* Constants for ECR */ +#define ECR_UNRECOVERABLE 0 +#define ECR_TLB_MULTIPLE 1 +#define ECR_BUS_ERROR_WRITE 2 +#define ECR_BUS_ERROR_READ 3 +#define ECR_NMI 4 +#define ECR_ADDR_ALIGN_X 5 +#define ECR_PROTECTION_X 6 +#define ECR_DEBUG 7 +#define ECR_ILLEGAL_OPCODE 8 +#define ECR_UNIMPL_INSTRUCTION 9 +#define ECR_PRIVILEGE_VIOLATION 10 +#define ECR_FPE 11 +#define ECR_COPROC_ABSENT 12 +#define ECR_ADDR_ALIGN_R 13 +#define ECR_ADDR_ALIGN_W 14 +#define ECR_PROTECTION_R 15 +#define ECR_PROTECTION_W 16 +#define ECR_DTLB_MODIFIED 17 +#define ECR_TLB_MISS_X 20 +#define ECR_TLB_MISS_R 24 +#define ECR_TLB_MISS_W 28 + +/* Bit manipulation macros */ +#define SYSREG_BIT(name) (1 << SYSREG_##name##_OFFSET) +#define SYSREG_BF(name,value) (((value) & ((1 << SYSREG_##name##_SIZE) - 1)) << SYSREG_##name##_OFFSET) +#define SYSREG_BFEXT(name,value) (((value) >> SYSREG_##name##_OFFSET) & ((1 << SYSREG_##name##_SIZE) - 1)) +#define SYSREG_BFINS(name,value,old) (((old) & ~(((1 << SYSREG_##name##_SIZE) - 1) << SYSREG_##name##_OFFSET)) | SYSREG_BF(name,value)) + +#ifdef __CHECKER__ +extern unsigned long __builtin_mfsr(unsigned long reg); +extern void __builtin_mtsr(unsigned long reg, unsigned long value); +#endif + +/* Register access macros */ +#define sysreg_read(reg) __builtin_mfsr(SYSREG_##reg) +#define sysreg_write(reg, value) __builtin_mtsr(SYSREG_##reg, value) + +#endif /* __ASM_AVR32_SYSREG_H__ */
diff --git a/include/asm-avr32/system.h b/include/asm-avr32/system.h new file mode 100644 index 0000000..ac596058 --- /dev/null +++ b/include/asm-avr32/system.h
@@ -0,0 +1,155 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_SYSTEM_H +#define __ASM_AVR32_SYSTEM_H + +#include <linux/compiler.h> +#include <linux/types.h> + +#include <asm/ptrace.h> +#include <asm/sysreg.h> + +#define xchg(ptr,x) \ + ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) + +#define nop() asm volatile("nop") + +#define mb() asm volatile("" : : : "memory") +#define rmb() mb() +#define wmb() asm volatile("sync 0" : : : "memory") +#define read_barrier_depends() do { } while(0) +#define set_mb(var, value) do { var = value; mb(); } while(0) + +/* + * Help PathFinder and other Nexus-compliant debuggers keep track of + * the current PID by emitting an Ownership Trace Message each time we + * switch task. + */ +#ifdef CONFIG_OWNERSHIP_TRACE +#include <asm/ocd.h> +#define finish_arch_switch(prev) \ + do { \ + __mtdr(DBGREG_PID, prev->pid); \ + __mtdr(DBGREG_PID, current->pid); \ + } while(0) +#endif + +/* + * switch_to(prev, next, last) should switch from task `prev' to task + * `next'. `prev' will never be the same as `next'. + * + * We just delegate everything to the __switch_to assembly function, + * which is implemented in arch/avr32/kernel/switch_to.S + * + * mb() tells GCC not to cache `current' across this call. + */ +struct cpu_context; +struct task_struct; +extern struct task_struct *__switch_to(struct task_struct *, + struct cpu_context *, + struct cpu_context *); +#define switch_to(prev, next, last) \ + do { \ + last = __switch_to(prev, &prev->thread.cpu_context + 1, \ + &next->thread.cpu_context); \ + } while (0) + +#ifdef CONFIG_SMP +# error "The AVR32 port does not support SMP" +#else +# define smp_mb() barrier() +# define smp_rmb() barrier() +# define smp_wmb() barrier() +# define smp_read_barrier_depends() do { } while(0) +#endif + +#include <linux/irqflags.h> + +extern void __xchg_called_with_bad_pointer(void); + +#ifdef __CHECKER__ +extern unsigned long __builtin_xchg(void *ptr, unsigned long x); +#endif + +#define xchg_u32(val, m) __builtin_xchg((void *)m, val) + +static inline unsigned long __xchg(unsigned long x, + volatile void *ptr, + int size) +{ + switch(size) { + case 4: + return xchg_u32(x, ptr); + default: + __xchg_called_with_bad_pointer(); + return x; + } +} + +static inline unsigned long __cmpxchg_u32(volatile int *m, unsigned long old, + unsigned long new) +{ + __u32 ret; + + asm volatile( + "1: ssrf 5\n" + " ld.w %[ret], %[m]\n" + " cp.w %[ret], %[old]\n" + " brne 2f\n" + " stcond %[m], %[new]\n" + " brne 1b\n" + "2:\n" + : [ret] "=&r"(ret), [m] "=m"(*m) + : "m"(m), [old] "ir"(old), [new] "r"(new) + : "memory", "cc"); + return ret; +} + +extern unsigned long __cmpxchg_u64_unsupported_on_32bit_kernels( + volatile int * m, unsigned long old, unsigned long new); +#define __cmpxchg_u64 __cmpxchg_u64_unsupported_on_32bit_kernels + +/* This function doesn't exist, so you'll get a linker error + if something tries to do an invalid cmpxchg(). */ +extern void __cmpxchg_called_with_bad_pointer(void); + +#define __HAVE_ARCH_CMPXCHG 1 + +static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, + unsigned long new, int size) +{ + switch (size) { + case 4: + return __cmpxchg_u32(ptr, old, new); + case 8: + return __cmpxchg_u64(ptr, old, new); + } + + __cmpxchg_called_with_bad_pointer(); + return old; +} + +#define cmpxchg(ptr, old, new) \ + ((typeof(*(ptr)))__cmpxchg((ptr), (unsigned long)(old), \ + (unsigned long)(new), \ + sizeof(*(ptr)))) + +struct pt_regs; +extern void __die(const char *, struct pt_regs *, unsigned long, + const char *, const char *, unsigned long); +extern void __die_if_kernel(const char *, struct pt_regs *, unsigned long, + const char *, const char *, unsigned long); + +#define die(msg, regs, err) \ + __die(msg, regs, err, __FILE__ ":", __FUNCTION__, __LINE__) +#define die_if_kernel(msg, regs, err) \ + __die_if_kernel(msg, regs, err, __FILE__ ":", __FUNCTION__, __LINE__) + +#define arch_align_stack(x) (x) + +#endif /* __ASM_AVR32_SYSTEM_H */
diff --git a/include/asm-avr32/termbits.h b/include/asm-avr32/termbits.h new file mode 100644 index 0000000..9dc6eac --- /dev/null +++ b/include/asm-avr32/termbits.h
@@ -0,0 +1,173 @@ +#ifndef __ASM_AVR32_TERMBITS_H +#define __ASM_AVR32_TERMBITS_H + +#include <linux/posix_types.h> + +typedef unsigned char cc_t; +typedef unsigned int speed_t; +typedef unsigned int tcflag_t; + +#define NCCS 19 +struct termios { + tcflag_t c_iflag; /* input mode flags */ + tcflag_t c_oflag; /* output mode flags */ + tcflag_t c_cflag; /* control mode flags */ + tcflag_t c_lflag; /* local mode flags */ + cc_t c_line; /* line discipline */ + cc_t c_cc[NCCS]; /* control characters */ +}; + +/* c_cc characters */ +#define VINTR 0 +#define VQUIT 1 +#define VERASE 2 +#define VKILL 3 +#define VEOF 4 +#define VTIME 5 +#define VMIN 6 +#define VSWTC 7 +#define VSTART 8 +#define VSTOP 9 +#define VSUSP 10 +#define VEOL 11 +#define VREPRINT 12 +#define VDISCARD 13 +#define VWERASE 14 +#define VLNEXT 15 +#define VEOL2 16 + +/* c_iflag bits */ +#define IGNBRK 0000001 +#define BRKINT 0000002 +#define IGNPAR 0000004 +#define PARMRK 0000010 +#define INPCK 0000020 +#define ISTRIP 0000040 +#define INLCR 0000100 +#define IGNCR 0000200 +#define ICRNL 0000400 +#define IUCLC 0001000 +#define IXON 0002000 +#define IXANY 0004000 +#define IXOFF 0010000 +#define IMAXBEL 0020000 +#define IUTF8 0040000 + +/* c_oflag bits */ +#define OPOST 0000001 +#define OLCUC 0000002 +#define ONLCR 0000004 +#define OCRNL 0000010 +#define ONOCR 0000020 +#define ONLRET 0000040 +#define OFILL 0000100 +#define OFDEL 0000200 +#define NLDLY 0000400 +#define NL0 0000000 +#define NL1 0000400 +#define CRDLY 0003000 +#define CR0 0000000 +#define CR1 0001000 +#define CR2 0002000 +#define CR3 0003000 +#define TABDLY 0014000 +#define TAB0 0000000 +#define TAB1 0004000 +#define TAB2 0010000 +#define TAB3 0014000 +#define XTABS 0014000 +#define BSDLY 0020000 +#define BS0 0000000 +#define BS1 0020000 +#define VTDLY 0040000 +#define VT0 0000000 +#define VT1 0040000 +#define FFDLY 0100000 +#define FF0 0000000 +#define FF1 0100000 + +/* c_cflag bit meaning */ +#define CBAUD 0010017 +#define B0 0000000 /* hang up */ +#define B50 0000001 +#define B75 0000002 +#define B110 0000003 +#define B134 0000004 +#define B150 0000005 +#define B200 0000006 +#define B300 0000007 +#define B600 0000010 +#define B1200 0000011 +#define B1800 0000012 +#define B2400 0000013 +#define B4800 0000014 +#define B9600 0000015 +#define B19200 0000016 +#define B38400 0000017 +#define EXTA B19200 +#define EXTB B38400 +#define CSIZE 0000060 +#define CS5 0000000 +#define CS6 0000020 +#define CS7 0000040 +#define CS8 0000060 +#define CSTOPB 0000100 +#define CREAD 0000200 +#define PARENB 0000400 +#define PARODD 0001000 +#define HUPCL 0002000 +#define CLOCAL 0004000 +#define CBAUDEX 0010000 +#define B57600 0010001 +#define B115200 0010002 +#define B230400 0010003 +#define B460800 0010004 +#define B500000 0010005 +#define B576000 0010006 +#define B921600 0010007 +#define B1000000 0010010 +#define B1152000 0010011 +#define B1500000 0010012 +#define B2000000 0010013 +#define B2500000 0010014 +#define B3000000 0010015 +#define B3500000 0010016 +#define B4000000 0010017 +#define CIBAUD 002003600000 /* input baud rate (not used) */ +#define CMSPAR 010000000000 /* mark or space (stick) parity */ +#define CRTSCTS 020000000000 /* flow control */ + +/* c_lflag bits */ +#define ISIG 0000001 +#define ICANON 0000002 +#define XCASE 0000004 +#define ECHO 0000010 +#define ECHOE 0000020 +#define ECHOK 0000040 +#define ECHONL 0000100 +#define NOFLSH 0000200 +#define TOSTOP 0000400 +#define ECHOCTL 0001000 +#define ECHOPRT 0002000 +#define ECHOKE 0004000 +#define FLUSHO 0010000 +#define PENDIN 0040000 +#define IEXTEN 0100000 + +/* tcflow() and TCXONC use these */ +#define TCOOFF 0 +#define TCOON 1 +#define TCIOFF 2 +#define TCION 3 + +/* tcflush() and TCFLSH use these */ +#define TCIFLUSH 0 +#define TCOFLUSH 1 +#define TCIOFLUSH 2 + +/* tcsetattr uses these */ +#define TCSANOW 0 +#define TCSADRAIN 1 +#define TCSAFLUSH 2 + +#endif /* __ASM_AVR32_TERMBITS_H */
diff --git a/include/asm-avr32/termios.h b/include/asm-avr32/termios.h new file mode 100644 index 0000000..615bc06 --- /dev/null +++ b/include/asm-avr32/termios.h
@@ -0,0 +1,80 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_TERMIOS_H +#define __ASM_AVR32_TERMIOS_H + +#include <asm/termbits.h> +#include <asm/ioctls.h> + +struct winsize { + unsigned short ws_row; + unsigned short ws_col; + unsigned short ws_xpixel; + unsigned short ws_ypixel; +}; + +#define NCC 8 +struct termio { + unsigned short c_iflag; /* input mode flags */ + unsigned short c_oflag; /* output mode flags */ + unsigned short c_cflag; /* control mode flags */ + unsigned short c_lflag; /* local mode flags */ + unsigned char c_line; /* line discipline */ + unsigned char c_cc[NCC]; /* control characters */ +}; + +/* modem lines */ +#define TIOCM_LE 0x001 +#define TIOCM_DTR 0x002 +#define TIOCM_RTS 0x004 +#define TIOCM_ST 0x008 +#define TIOCM_SR 0x010 +#define TIOCM_CTS 0x020 +#define TIOCM_CAR 0x040 +#define TIOCM_RNG 0x080 +#define TIOCM_DSR 0x100 +#define TIOCM_CD TIOCM_CAR +#define TIOCM_RI TIOCM_RNG +#define TIOCM_OUT1 0x2000 +#define TIOCM_OUT2 0x4000 +#define TIOCM_LOOP 0x8000 + +/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */ + +/* line disciplines */ +#define N_TTY 0 +#define N_SLIP 1 +#define N_MOUSE 2 +#define N_PPP 3 +#define N_STRIP 4 +#define N_AX25 5 +#define N_X25 6 /* X.25 async */ +#define N_6PACK 7 +#define N_MASC 8 /* Reserved for Mobitex module <kaz@cafe.net> */ +#define N_R3964 9 /* Reserved for Simatic R3964 module */ +#define N_PROFIBUS_FDL 10 /* Reserved for Profibus <Dave@mvhi.com> */ +#define N_IRDA 11 /* Linux IR - http://irda.sourceforge.net/ */ +#define N_SMSBLOCK 12 /* SMS block mode - for talking to GSM data cards about SMS messages */ +#define N_HDLC 13 /* synchronous HDLC */ +#define N_SYNC_PPP 14 /* synchronous PPP */ +#define N_HCI 15 /* Bluetooth HCI UART */ + +#ifdef __KERNEL__ +/* intr=^C quit=^\ erase=del kill=^U + eof=^D vtime=\0 vmin=\1 sxtc=\0 + start=^Q stop=^S susp=^Z eol=\0 + reprint=^R discard=^U werase=^W lnext=^V + eol2=\0 +*/ +#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0" + +#include <asm-generic/termios.h> + +#endif /* __KERNEL__ */ + +#endif /* __ASM_AVR32_TERMIOS_H */
diff --git a/include/asm-avr32/thread_info.h b/include/asm-avr32/thread_info.h new file mode 100644 index 0000000..d1f5b35 --- /dev/null +++ b/include/asm-avr32/thread_info.h
@@ -0,0 +1,106 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_THREAD_INFO_H +#define __ASM_AVR32_THREAD_INFO_H + +#include <asm/page.h> + +#define THREAD_SIZE_ORDER 1 +#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER) + +#ifndef __ASSEMBLY__ +#include <asm/types.h> + +struct task_struct; +struct exec_domain; + +struct thread_info { + struct task_struct *task; /* main task structure */ + struct exec_domain *exec_domain; /* execution domain */ + unsigned long flags; /* low level flags */ + __u32 cpu; + __s32 preempt_count; /* 0 => preemptable, <0 => BUG */ + struct restart_block restart_block; + __u8 supervisor_stack[0]; +}; + +#define INIT_THREAD_INFO(tsk) \ +{ \ + .task = &tsk, \ + .exec_domain = &default_exec_domain, \ + .flags = 0, \ + .cpu = 0, \ + .preempt_count = 1, \ + .restart_block = { \ + .fn = do_no_restart_syscall \ + } \ +} + +#define init_thread_info (init_thread_union.thread_info) +#define init_stack (init_thread_union.stack) + +/* + * Get the thread information struct from C. + * We do the usual trick and use the lower end of the stack for this + */ +static inline struct thread_info *current_thread_info(void) +{ + unsigned long addr = ~(THREAD_SIZE - 1); + + asm("and %0, sp" : "=r"(addr) : "0"(addr)); + return (struct thread_info *)addr; +} + +/* thread information allocation */ +#define alloc_thread_info(ti) \ + ((struct thread_info *) __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER)) +#define free_thread_info(ti) free_pages((unsigned long)(ti), 1) +#define get_thread_info(ti) get_task_struct((ti)->task) +#define put_thread_info(ti) put_task_struct((ti)->task) + +#endif /* !__ASSEMBLY__ */ + +#define PREEMPT_ACTIVE 0x40000000 + +/* + * Thread information flags + * - these are process state flags that various assembly files may need to access + * - pending work-to-be-done flags are in LSW + * - other flags in MSW + */ +#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ +#define TIF_NOTIFY_RESUME 1 /* resumption notification requested */ +#define TIF_SIGPENDING 2 /* signal pending */ +#define TIF_NEED_RESCHED 3 /* rescheduling necessary */ +#define TIF_POLLING_NRFLAG 4 /* true if poll_idle() is polling + TIF_NEED_RESCHED */ +#define TIF_BREAKPOINT 5 /* true if we should break after return */ +#define TIF_SINGLE_STEP 6 /* single step after next break */ +#define TIF_MEMDIE 7 +#define TIF_RESTORE_SIGMASK 8 /* restore signal mask in do_signal */ +#define TIF_USERSPACE 31 /* true if FS sets userspace */ + +#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) +#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) +#define _TIF_SIGPENDING (1 << TIF_SIGPENDING) +#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) +#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) +#define _TIF_BREAKPOINT (1 << TIF_BREAKPOINT) +#define _TIF_SINGLE_STEP (1 << TIF_SINGLE_STEP) +#define _TIF_MEMDIE (1 << TIF_MEMDIE) +#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK) + +/* XXX: These two masks must never span more than 16 bits! */ +/* work to do on interrupt/exception return */ +#define _TIF_WORK_MASK 0x0000013e +/* work to do on any return to userspace */ +#define _TIF_ALLWORK_MASK 0x0000013f +/* work to do on return from debug mode */ +#define _TIF_DBGWORK_MASK 0x0000017e + +#endif /* __ASM_AVR32_THREAD_INFO_H */
diff --git a/include/asm-avr32/timex.h b/include/asm-avr32/timex.h new file mode 100644 index 0000000..5e44ecb --- /dev/null +++ b/include/asm-avr32/timex.h
@@ -0,0 +1,40 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_TIMEX_H +#define __ASM_AVR32_TIMEX_H + +/* + * This is the frequency of the timer used for Linux's timer interrupt. + * The value should be defined as accurate as possible or under certain + * circumstances Linux timekeeping might become inaccurate or fail. + * + * For many system the exact clockrate of the timer isn't known but due to + * the way this value is used we can get away with a wrong value as long + * as this value is: + * + * - a multiple of HZ + * - a divisor of the actual rate + * + * 500000 is a good such cheat value. + * + * The obscure number 1193182 is the same as used by the original i8254 + * time in legacy PC hardware; the chip is never found in AVR32 systems. + */ +#define CLOCK_TICK_RATE 500000 /* Underlying HZ */ + +typedef unsigned long cycles_t; + +static inline cycles_t get_cycles (void) +{ + return 0; +} + +extern int read_current_timer(unsigned long *timer_value); +#define ARCH_HAS_READ_CURRENT_TIMER 1 + +#endif /* __ASM_AVR32_TIMEX_H */
diff --git a/include/asm-avr32/tlb.h b/include/asm-avr32/tlb.h new file mode 100644 index 0000000..5c55f9c --- /dev/null +++ b/include/asm-avr32/tlb.h
@@ -0,0 +1,32 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_TLB_H +#define __ASM_AVR32_TLB_H + +#define tlb_start_vma(tlb, vma) \ + flush_cache_range(vma, vma->vm_start, vma->vm_end) + +#define tlb_end_vma(tlb, vma) \ + flush_tlb_range(vma, vma->vm_start, vma->vm_end) + +#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while(0) + +/* + * Flush whole TLB for MM + */ +#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) + +#include <asm-generic/tlb.h> + +/* + * For debugging purposes + */ +extern void show_dtlb_entry(unsigned int index); +extern void dump_dtlb(void); + +#endif /* __ASM_AVR32_TLB_H */
diff --git a/include/asm-avr32/tlbflush.h b/include/asm-avr32/tlbflush.h new file mode 100644 index 0000000..730e268 --- /dev/null +++ b/include/asm-avr32/tlbflush.h
@@ -0,0 +1,40 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_TLBFLUSH_H +#define __ASM_AVR32_TLBFLUSH_H + +#include <asm/mmu.h> + +/* + * TLB flushing: + * + * - flush_tlb() flushes the current mm struct TLBs + * - flush_tlb_all() flushes all processes' TLB entries + * - flush_tlb_mm(mm) flushes the specified mm context TLBs + * - flush_tlb_page(vma, vmaddr) flushes one page + * - flush_tlb_range(vma, start, end) flushes a range of pages + * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages + * - flush_tlb_pgtables(mm, start, end) flushes a range of page tables + */ +extern void flush_tlb(void); +extern void flush_tlb_all(void); +extern void flush_tlb_mm(struct mm_struct *mm); +extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end); +extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long page); +extern void __flush_tlb_page(unsigned long asid, unsigned long page); + +static inline void flush_tlb_pgtables(struct mm_struct *mm, + unsigned long start, unsigned long end) +{ + /* Nothing to do */ +} + +extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); + +#endif /* __ASM_AVR32_TLBFLUSH_H */
diff --git a/include/asm-avr32/topology.h b/include/asm-avr32/topology.h new file mode 100644 index 0000000..5b766cb --- /dev/null +++ b/include/asm-avr32/topology.h
@@ -0,0 +1,6 @@ +#ifndef __ASM_AVR32_TOPOLOGY_H +#define __ASM_AVR32_TOPOLOGY_H + +#include <asm-generic/topology.h> + +#endif /* __ASM_AVR32_TOPOLOGY_H */
diff --git a/include/asm-avr32/traps.h b/include/asm-avr32/traps.h new file mode 100644 index 0000000..6a8fb94 --- /dev/null +++ b/include/asm-avr32/traps.h
@@ -0,0 +1,23 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_TRAPS_H +#define __ASM_AVR32_TRAPS_H + +#include <linux/list.h> + +struct undef_hook { + struct list_head node; + u32 insn_mask; + u32 insn_val; + int (*fn)(struct pt_regs *regs, u32 insn); +}; + +void register_undef_hook(struct undef_hook *hook); +void unregister_undef_hook(struct undef_hook *hook); + +#endif /* __ASM_AVR32_TRAPS_H */
diff --git a/include/asm-avr32/types.h b/include/asm-avr32/types.h new file mode 100644 index 0000000..3f47db9 --- /dev/null +++ b/include/asm-avr32/types.h
@@ -0,0 +1,70 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_TYPES_H +#define __ASM_AVR32_TYPES_H + +#ifndef __ASSEMBLY__ + +typedef unsigned short umode_t; + +/* + * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the + * header files exported to user space + */ +typedef __signed__ char __s8; +typedef unsigned char __u8; + +typedef __signed__ short __s16; +typedef unsigned short __u16; + +typedef __signed__ int __s32; +typedef unsigned int __u32; + +#if defined(__GNUC__) && !defined(__STRICT_ANSI__) +typedef __signed__ long long __s64; +typedef unsigned long long __u64; +#endif + +#endif /* __ASSEMBLY__ */ + +/* + * These aren't exported outside the kernel to avoid name space clashes + */ +#ifdef __KERNEL__ + +#define BITS_PER_LONG 32 + +#ifndef __ASSEMBLY__ + +typedef signed char s8; +typedef unsigned char u8; + +typedef signed short s16; +typedef unsigned short u16; + +typedef signed int s32; +typedef unsigned int u32; + +typedef signed long long s64; +typedef unsigned long long u64; + +/* Dma addresses are 32-bits wide. */ + +typedef u32 dma_addr_t; + +#ifdef CONFIG_LBD +typedef u64 sector_t; +#define HAVE_SECTOR_T +#endif + +#endif /* __ASSEMBLY__ */ + +#endif /* __KERNEL__ */ + + +#endif /* __ASM_AVR32_TYPES_H */
diff --git a/include/asm-avr32/uaccess.h b/include/asm-avr32/uaccess.h new file mode 100644 index 0000000..821deb5 --- /dev/null +++ b/include/asm-avr32/uaccess.h
@@ -0,0 +1,335 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_UACCESS_H +#define __ASM_AVR32_UACCESS_H + +#include <linux/errno.h> +#include <linux/sched.h> + +#define VERIFY_READ 0 +#define VERIFY_WRITE 1 + +typedef struct { + unsigned int is_user_space; +} mm_segment_t; + +/* + * The fs value determines whether argument validity checking should be + * performed or not. If get_fs() == USER_DS, checking is performed, with + * get_fs() == KERNEL_DS, checking is bypassed. + * + * For historical reasons (Data Segment Register?), these macros are misnamed. + */ +#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) +#define segment_eq(a,b) ((a).is_user_space == (b).is_user_space) + +#define USER_ADDR_LIMIT 0x80000000 + +#define KERNEL_DS MAKE_MM_SEG(0) +#define USER_DS MAKE_MM_SEG(1) + +#define get_ds() (KERNEL_DS) + +static inline mm_segment_t get_fs(void) +{ + return MAKE_MM_SEG(test_thread_flag(TIF_USERSPACE)); +} + +static inline void set_fs(mm_segment_t s) +{ + if (s.is_user_space) + set_thread_flag(TIF_USERSPACE); + else + clear_thread_flag(TIF_USERSPACE); +} + +/* + * Test whether a block of memory is a valid user space address. + * Returns 0 if the range is valid, nonzero otherwise. + * + * We do the following checks: + * 1. Is the access from kernel space? + * 2. Does (addr + size) set the carry bit? + * 3. Is (addr + size) a negative number (i.e. >= 0x80000000)? + * + * If yes on the first check, access is granted. + * If no on any of the others, access is denied. + */ +#define __range_ok(addr, size) \ + (test_thread_flag(TIF_USERSPACE) \ + && (((unsigned long)(addr) >= 0x80000000) \ + || ((unsigned long)(size) > 0x80000000) \ + || (((unsigned long)(addr) + (unsigned long)(size)) > 0x80000000))) + +#define access_ok(type, addr, size) (likely(__range_ok(addr, size) == 0)) + +static inline int +verify_area(int type, const void __user *addr, unsigned long size) +{ + return access_ok(type, addr, size) ? 0 : -EFAULT; +} + +/* Generic arbitrary sized copy. Return the number of bytes NOT copied */ +extern __kernel_size_t __copy_user(void *to, const void *from, + __kernel_size_t n); + +extern __kernel_size_t copy_to_user(void __user *to, const void *from, + __kernel_size_t n); +extern __kernel_size_t copy_from_user(void *to, const void __user *from, + __kernel_size_t n); + +static inline __kernel_size_t __copy_to_user(void __user *to, const void *from, + __kernel_size_t n) +{ + return __copy_user((void __force *)to, from, n); +} +static inline __kernel_size_t __copy_from_user(void *to, + const void __user *from, + __kernel_size_t n) +{ + return __copy_user(to, (const void __force *)from, n); +} + +#define __copy_to_user_inatomic __copy_to_user +#define __copy_from_user_inatomic __copy_from_user + +/* + * put_user: - Write a simple value into user space. + * @x: Value to copy to user space. + * @ptr: Destination address, in user space. + * + * Context: User context only. This function may sleep. + * + * This macro copies a single simple value from kernel space to user + * space. It supports simple types like char and int, but not larger + * data types like structures or arrays. + * + * @ptr must have pointer-to-simple-variable type, and @x must be assignable + * to the result of dereferencing @ptr. + * + * Returns zero on success, or -EFAULT on error. + */ +#define put_user(x,ptr) \ + __put_user_check((x),(ptr),sizeof(*(ptr))) + +/* + * get_user: - Get a simple variable from user space. + * @x: Variable to store result. + * @ptr: Source address, in user space. + * + * Context: User context only. This function may sleep. + * + * This macro copies a single simple variable from user space to kernel + * space. It supports simple types like char and int, but not larger + * data types like structures or arrays. + * + * @ptr must have pointer-to-simple-variable type, and the result of + * dereferencing @ptr must be assignable to @x without a cast. + * + * Returns zero on success, or -EFAULT on error. + * On error, the variable @x is set to zero. + */ +#define get_user(x,ptr) \ + __get_user_check((x),(ptr),sizeof(*(ptr))) + +/* + * __put_user: - Write a simple value into user space, with less checking. + * @x: Value to copy to user space. + * @ptr: Destination address, in user space. + * + * Context: User context only. This function may sleep. + * + * This macro copies a single simple value from kernel space to user + * space. It supports simple types like char and int, but not larger + * data types like structures or arrays. + * + * @ptr must have pointer-to-simple-variable type, and @x must be assignable + * to the result of dereferencing @ptr. + * + * Caller must check the pointer with access_ok() before calling this + * function. + * + * Returns zero on success, or -EFAULT on error. + */ +#define __put_user(x,ptr) \ + __put_user_nocheck((x),(ptr),sizeof(*(ptr))) + +/* + * __get_user: - Get a simple variable from user space, with less checking. + * @x: Variable to store result. + * @ptr: Source address, in user space. + * + * Context: User context only. This function may sleep. + * + * This macro copies a single simple variable from user space to kernel + * space. It supports simple types like char and int, but not larger + * data types like structures or arrays. + * + * @ptr must have pointer-to-simple-variable type, and the result of + * dereferencing @ptr must be assignable to @x without a cast. + * + * Caller must check the pointer with access_ok() before calling this + * function. + * + * Returns zero on success, or -EFAULT on error. + * On error, the variable @x is set to zero. + */ +#define __get_user(x,ptr) \ + __get_user_nocheck((x),(ptr),sizeof(*(ptr))) + +extern int __get_user_bad(void); +extern int __put_user_bad(void); + +#define __get_user_nocheck(x, ptr, size) \ +({ \ + typeof(*(ptr)) __gu_val = (typeof(*(ptr)) __force)0; \ + int __gu_err = 0; \ + \ + switch (size) { \ + case 1: __get_user_asm("ub", __gu_val, ptr, __gu_err); break; \ + case 2: __get_user_asm("uh", __gu_val, ptr, __gu_err); break; \ + case 4: __get_user_asm("w", __gu_val, ptr, __gu_err); break; \ + case 8: __get_user_asm("d", __gu_val, ptr, __gu_err); break; \ + default: __gu_err = __get_user_bad(); break; \ + } \ + \ + x = __gu_val; \ + __gu_err; \ +}) + +#define __get_user_check(x, ptr, size) \ +({ \ + typeof(*(ptr)) __gu_val = (typeof(*(ptr)) __force)0; \ + const typeof(*(ptr)) __user * __gu_addr = (ptr); \ + int __gu_err = 0; \ + \ + if (access_ok(VERIFY_READ, __gu_addr, size)) { \ + switch (size) { \ + case 1: \ + __get_user_asm("ub", __gu_val, __gu_addr, \ + __gu_err); \ + break; \ + case 2: \ + __get_user_asm("uh", __gu_val, __gu_addr, \ + __gu_err); \ + break; \ + case 4: \ + __get_user_asm("w", __gu_val, __gu_addr, \ + __gu_err); \ + break; \ + case 8: \ + __get_user_asm("d", __gu_val, __gu_addr, \ + __gu_err); \ + break; \ + default: \ + __gu_err = __get_user_bad(); \ + break; \ + } \ + } else { \ + __gu_err = -EFAULT; \ + } \ + x = __gu_val; \ + __gu_err; \ +}) + +#define __get_user_asm(suffix, __gu_val, ptr, __gu_err) \ + asm volatile( \ + "1: ld." suffix " %1, %3 \n" \ + "2: \n" \ + " .section .fixup, \"ax\" \n" \ + "3: mov %0, %4 \n" \ + " rjmp 2b \n" \ + " .previous \n" \ + " .section __ex_table, \"a\" \n" \ + " .long 1b, 3b \n" \ + " .previous \n" \ + : "=r"(__gu_err), "=r"(__gu_val) \ + : "0"(__gu_err), "m"(*(ptr)), "i"(-EFAULT)) + +#define __put_user_nocheck(x, ptr, size) \ +({ \ + typeof(*(ptr)) __pu_val; \ + int __pu_err = 0; \ + \ + __pu_val = (x); \ + switch (size) { \ + case 1: __put_user_asm("b", ptr, __pu_val, __pu_err); break; \ + case 2: __put_user_asm("h", ptr, __pu_val, __pu_err); break; \ + case 4: __put_user_asm("w", ptr, __pu_val, __pu_err); break; \ + case 8: __put_user_asm("d", ptr, __pu_val, __pu_err); break; \ + default: __pu_err = __put_user_bad(); break; \ + } \ + __pu_err; \ +}) + +#define __put_user_check(x, ptr, size) \ +({ \ + typeof(*(ptr)) __pu_val; \ + typeof(*(ptr)) __user *__pu_addr = (ptr); \ + int __pu_err = 0; \ + \ + __pu_val = (x); \ + if (access_ok(VERIFY_WRITE, __pu_addr, size)) { \ + switch (size) { \ + case 1: \ + __put_user_asm("b", __pu_addr, __pu_val, \ + __pu_err); \ + break; \ + case 2: \ + __put_user_asm("h", __pu_addr, __pu_val, \ + __pu_err); \ + break; \ + case 4: \ + __put_user_asm("w", __pu_addr, __pu_val, \ + __pu_err); \ + break; \ + case 8: \ + __put_user_asm("d", __pu_addr, __pu_val, \ + __pu_err); \ + break; \ + default: \ + __pu_err = __put_user_bad(); \ + break; \ + } \ + } else { \ + __pu_err = -EFAULT; \ + } \ + __pu_err; \ +}) + +#define __put_user_asm(suffix, ptr, __pu_val, __gu_err) \ + asm volatile( \ + "1: st." suffix " %1, %3 \n" \ + "2: \n" \ + " .section .fixup, \"ax\" \n" \ + "3: mov %0, %4 \n" \ + " rjmp 2b \n" \ + " .previous \n" \ + " .section __ex_table, \"a\" \n" \ + " .long 1b, 3b \n" \ + " .previous \n" \ + : "=r"(__gu_err), "=m"(*(ptr)) \ + : "0"(__gu_err), "r"(__pu_val), "i"(-EFAULT)) + +extern __kernel_size_t clear_user(void __user *addr, __kernel_size_t size); +extern __kernel_size_t __clear_user(void __user *addr, __kernel_size_t size); + +extern long strncpy_from_user(char *dst, const char __user *src, long count); +extern long __strncpy_from_user(char *dst, const char __user *src, long count); + +extern long strnlen_user(const char __user *__s, long __n); +extern long __strnlen_user(const char __user *__s, long __n); + +#define strlen_user(s) strnlen_user(s, ~0UL >> 1) + +struct exception_table_entry +{ + unsigned long insn, fixup; +}; + +#endif /* __ASM_AVR32_UACCESS_H */
diff --git a/include/asm-avr32/ucontext.h b/include/asm-avr32/ucontext.h new file mode 100644 index 0000000..ac7259c --- /dev/null +++ b/include/asm-avr32/ucontext.h
@@ -0,0 +1,12 @@ +#ifndef __ASM_AVR32_UCONTEXT_H +#define __ASM_AVR32_UCONTEXT_H + +struct ucontext { + unsigned long uc_flags; + struct ucontext * uc_link; + stack_t uc_stack; + struct sigcontext uc_mcontext; + sigset_t uc_sigmask; +}; + +#endif /* __ASM_AVR32_UCONTEXT_H */
diff --git a/include/asm-avr32/unaligned.h b/include/asm-avr32/unaligned.h new file mode 100644 index 0000000..3042723 --- /dev/null +++ b/include/asm-avr32/unaligned.h
@@ -0,0 +1,25 @@ +#ifndef __ASM_AVR32_UNALIGNED_H +#define __ASM_AVR32_UNALIGNED_H + +/* + * AVR32 can handle some unaligned accesses, depending on the + * implementation. The AVR32 AP implementation can handle unaligned + * words, but halfwords must be halfword-aligned, and doublewords must + * be word-aligned. + * + * TODO: Make all this CPU-specific and optimize. + */ + +#include <linux/string.h> + +/* Use memmove here, so gcc does not insert a __builtin_memcpy. */ + +#define get_unaligned(ptr) \ + ({ __typeof__(*(ptr)) __tmp; memmove(&__tmp, (ptr), sizeof(*(ptr))); __tmp; }) + +#define put_unaligned(val, ptr) \ + ({ __typeof__(*(ptr)) __tmp = (val); \ + memmove((ptr), &__tmp, sizeof(*(ptr))); \ + (void)0; }) + +#endif /* __ASM_AVR32_UNALIGNED_H */
diff --git a/include/asm-avr32/unistd.h b/include/asm-avr32/unistd.h new file mode 100644 index 0000000..1f528f9 --- /dev/null +++ b/include/asm-avr32/unistd.h
@@ -0,0 +1,387 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_AVR32_UNISTD_H +#define __ASM_AVR32_UNISTD_H + +/* + * This file contains the system call numbers. + */ + +#define __NR_restart_syscall 0 +#define __NR_exit 1 +#define __NR_fork 2 +#define __NR_read 3 +#define __NR_write 4 +#define __NR_open 5 +#define __NR_close 6 +#define __NR_umask 7 +#define __NR_creat 8 +#define __NR_link 9 +#define __NR_unlink 10 +#define __NR_execve 11 +#define __NR_chdir 12 +#define __NR_time 13 +#define __NR_mknod 14 +#define __NR_chmod 15 +#define __NR_chown 16 +#define __NR_lchown 17 +#define __NR_lseek 18 +#define __NR__llseek 19 +#define __NR_getpid 20 +#define __NR_mount 21 +#define __NR_umount2 22 +#define __NR_setuid 23 +#define __NR_getuid 24 +#define __NR_stime 25 +#define __NR_ptrace 26 +#define __NR_alarm 27 +#define __NR_pause 28 +#define __NR_utime 29 +#define __NR_stat 30 +#define __NR_fstat 31 +#define __NR_lstat 32 +#define __NR_access 33 +#define __NR_chroot 34 +#define __NR_sync 35 +#define __NR_fsync 36 +#define __NR_kill 37 +#define __NR_rename 38 +#define __NR_mkdir 39 +#define __NR_rmdir 40 +#define __NR_dup 41 +#define __NR_pipe 42 +#define __NR_times 43 +#define __NR_clone 44 +#define __NR_brk 45 +#define __NR_setgid 46 +#define __NR_getgid 47 +#define __NR_getcwd 48 +#define __NR_geteuid 49 +#define __NR_getegid 50 +#define __NR_acct 51 +#define __NR_setfsuid 52 +#define __NR_setfsgid 53 +#define __NR_ioctl 54 +#define __NR_fcntl 55 +#define __NR_setpgid 56 +#define __NR_mremap 57 +#define __NR_setresuid 58 +#define __NR_getresuid 59 +#define __NR_setreuid 60 +#define __NR_setregid 61 +#define __NR_ustat 62 +#define __NR_dup2 63 +#define __NR_getppid 64 +#define __NR_getpgrp 65 +#define __NR_setsid 66 +#define __NR_rt_sigaction 67 +#define __NR_rt_sigreturn 68 +#define __NR_rt_sigprocmask 69 +#define __NR_rt_sigpending 70 +#define __NR_rt_sigtimedwait 71 +#define __NR_rt_sigqueueinfo 72 +#define __NR_rt_sigsuspend 73 +#define __NR_sethostname 74 +#define __NR_setrlimit 75 +#define __NR_getrlimit 76 /* SuS compliant getrlimit */ +#define __NR_getrusage 77 +#define __NR_gettimeofday 78 +#define __NR_settimeofday 79 +#define __NR_getgroups 80 +#define __NR_setgroups 81 +#define __NR_select 82 +#define __NR_symlink 83 +#define __NR_fchdir 84 +#define __NR_readlink 85 +#define __NR_pread 86 +#define __NR_pwrite 87 +#define __NR_swapon 88 +#define __NR_reboot 89 +#define __NR_mmap2 90 +#define __NR_munmap 91 +#define __NR_truncate 92 +#define __NR_ftruncate 93 +#define __NR_fchmod 94 +#define __NR_fchown 95 +#define __NR_getpriority 96 +#define __NR_setpriority 97 +#define __NR_wait4 98 +#define __NR_statfs 99 +#define __NR_fstatfs 100 +#define __NR_vhangup 101 +#define __NR_sigaltstack 102 +#define __NR_syslog 103 +#define __NR_setitimer 104 +#define __NR_getitimer 105 +#define __NR_swapoff 106 +#define __NR_sysinfo 107 +#define __NR_ipc 108 +#define __NR_sendfile 109 +#define __NR_setdomainname 110 +#define __NR_uname 111 +#define __NR_adjtimex 112 +#define __NR_mprotect 113 +#define __NR_vfork 114 +#define __NR_init_module 115 +#define __NR_delete_module 116 +#define __NR_quotactl 117 +#define __NR_getpgid 118 +#define __NR_bdflush 119 +#define __NR_sysfs 120 +#define __NR_personality 121 +#define __NR_afs_syscall 122 /* Syscall for Andrew File System */ +#define __NR_getdents 123 +#define __NR_flock 124 +#define __NR_msync 125 +#define __NR_readv 126 +#define __NR_writev 127 +#define __NR_getsid 128 +#define __NR_fdatasync 129 +#define __NR__sysctl 130 +#define __NR_mlock 131 +#define __NR_munlock 132 +#define __NR_mlockall 133 +#define __NR_munlockall 134 +#define __NR_sched_setparam 135 +#define __NR_sched_getparam 136 +#define __NR_sched_setscheduler 137 +#define __NR_sched_getscheduler 138 +#define __NR_sched_yield 139 +#define __NR_sched_get_priority_max 140 +#define __NR_sched_get_priority_min 141 +#define __NR_sched_rr_get_interval 142 +#define __NR_nanosleep 143 +#define __NR_poll 144 +#define __NR_nfsservctl 145 +#define __NR_setresgid 146 +#define __NR_getresgid 147 +#define __NR_prctl 148 +#define __NR_socket 149 +#define __NR_bind 150 +#define __NR_connect 151 +#define __NR_listen 152 +#define __NR_accept 153 +#define __NR_getsockname 154 +#define __NR_getpeername 155 +#define __NR_socketpair 156 +#define __NR_send 157 +#define __NR_recv 158 +#define __NR_sendto 159 +#define __NR_recvfrom 160 +#define __NR_shutdown 161 +#define __NR_setsockopt 162 +#define __NR_getsockopt 163 +#define __NR_sendmsg 164 +#define __NR_recvmsg 165 +#define __NR_truncate64 166 +#define __NR_ftruncate64 167 +#define __NR_stat64 168 +#define __NR_lstat64 169 +#define __NR_fstat64 170 +#define __NR_pivot_root 171 +#define __NR_mincore 172 +#define __NR_madvise 173 +#define __NR_getdents64 174 +#define __NR_fcntl64 175 +#define __NR_gettid 176 +#define __NR_readahead 177 +#define __NR_setxattr 178 +#define __NR_lsetxattr 179 +#define __NR_fsetxattr 180 +#define __NR_getxattr 181 +#define __NR_lgetxattr 182 +#define __NR_fgetxattr 183 +#define __NR_listxattr 184 +#define __NR_llistxattr 185 +#define __NR_flistxattr 186 +#define __NR_removexattr 187 +#define __NR_lremovexattr 188 +#define __NR_fremovexattr 189 +#define __NR_tkill 190 +#define __NR_sendfile64 191 +#define __NR_futex 192 +#define __NR_sched_setaffinity 193 +#define __NR_sched_getaffinity 194 +#define __NR_capget 195 +#define __NR_capset 196 +#define __NR_io_setup 197 +#define __NR_io_destroy 198 +#define __NR_io_getevents 199 +#define __NR_io_submit 200 +#define __NR_io_cancel 201 +#define __NR_fadvise64 202 +#define __NR_exit_group 203 +#define __NR_lookup_dcookie 204 +#define __NR_epoll_create 205 +#define __NR_epoll_ctl 206 +#define __NR_epoll_wait 207 +#define __NR_remap_file_pages 208 +#define __NR_set_tid_address 209 + +#define __NR_timer_create 210 +#define __NR_timer_settime 211 +#define __NR_timer_gettime 212 +#define __NR_timer_getoverrun 213 +#define __NR_timer_delete 214 +#define __NR_clock_settime 215 +#define __NR_clock_gettime 216 +#define __NR_clock_getres 217 +#define __NR_clock_nanosleep 218 +#define __NR_statfs64 219 +#define __NR_fstatfs64 220 +#define __NR_tgkill 221 + /* 222 reserved for tux */ +#define __NR_utimes 223 +#define __NR_fadvise64_64 224 + +#define __NR_cacheflush 225 + +#define __NR_vserver 226 +#define __NR_mq_open 227 +#define __NR_mq_unlink 228 +#define __NR_mq_timedsend 229 +#define __NR_mq_timedreceive 230 +#define __NR_mq_notify 231 +#define __NR_mq_getsetattr 232 +#define __NR_kexec_load 233 +#define __NR_waitid 234 +#define __NR_add_key 235 +#define __NR_request_key 236 +#define __NR_keyctl 237 +#define __NR_ioprio_set 238 +#define __NR_ioprio_get 239 +#define __NR_inotify_init 240 +#define __NR_inotify_add_watch 241 +#define __NR_inotify_rm_watch 242 +#define __NR_openat 243 +#define __NR_mkdirat 244 +#define __NR_mknodat 245 +#define __NR_fchownat 246 +#define __NR_futimesat 247 +#define __NR_fstatat64 248 +#define __NR_unlinkat 249 +#define __NR_renameat 250 +#define __NR_linkat 251 +#define __NR_symlinkat 252 +#define __NR_readlinkat 253 +#define __NR_fchmodat 254 +#define __NR_faccessat 255 +#define __NR_pselect6 256 +#define __NR_ppoll 257 +#define __NR_unshare 258 +#define __NR_set_robust_list 259 +#define __NR_get_robust_list 260 +#define __NR_splice 261 +#define __NR_sync_file_range 262 +#define __NR_tee 263 +#define __NR_vmsplice 264 + +#define NR_syscalls 265 + + +/* + * AVR32 calling convention for system calls: + * - System call number in r8 + * - Parameters in r12 and downwards to r9 as well as r6 and r5. + * - Return value in r12 + */ + +/* + * user-visible error numbers are in the range -1 - -124: see + * <asm-generic/errno.h> + */ + +#define __syscall_return(type, res) do { \ + if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + errno = -(res); \ + res = -1; \ + } \ + return (type) (res); \ + } while (0) + +#ifdef __KERNEL__ +#define __ARCH_WANT_IPC_PARSE_VERSION +#define __ARCH_WANT_STAT64 +#define __ARCH_WANT_SYS_ALARM +#define __ARCH_WANT_SYS_GETHOSTNAME +#define __ARCH_WANT_SYS_PAUSE +#define __ARCH_WANT_SYS_TIME +#define __ARCH_WANT_SYS_UTIME +#define __ARCH_WANT_SYS_WAITPID +#define __ARCH_WANT_SYS_FADVISE64 +#define __ARCH_WANT_SYS_GETPGRP +#define __ARCH_WANT_SYS_LLSEEK +#define __ARCH_WANT_SYS_GETPGRP +#define __ARCH_WANT_SYS_RT_SIGACTION +#define __ARCH_WANT_SYS_RT_SIGSUSPEND +#endif + +#if defined(__KERNEL_SYSCALLS__) || defined(__CHECKER__) + +#include <linux/types.h> +#include <linux/linkage.h> +#include <asm/signal.h> + +struct pt_regs; + +/* + * we need this inline - forking from kernel space will result + * in NO COPY ON WRITE (!!!), until an execve is executed. This + * is no problem, but for the stack. This is handled by not letting + * main() use the stack at all after fork(). Thus, no function + * calls - which means inline code for fork too, as otherwise we + * would use the stack upon exit from 'fork()'. + * + * Actually only pause and fork are needed inline, so that there + * won't be any messing with the stack from main(), but we define + * some others too. + */ +static inline int execve(const char *file, char **argv, char **envp) +{ + register long scno asm("r8") = __NR_execve; + register long sc1 asm("r12") = (long)file; + register long sc2 asm("r11") = (long)argv; + register long sc3 asm("r10") = (long)envp; + int res; + + asm volatile("scall" + : "=r"(sc1) + : "r"(scno), "0"(sc1), "r"(sc2), "r"(sc3) + : "lr", "memory"); + res = sc1; + __syscall_return(int, res); +} + +asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); +asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss, + struct pt_regs *regs); +asmlinkage int sys_rt_sigreturn(struct pt_regs *regs); +asmlinkage int sys_pipe(unsigned long __user *filedes); +asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, + unsigned long prot, unsigned long flags, + unsigned long fd, off_t offset); +asmlinkage int sys_cacheflush(int operation, void __user *addr, size_t len); +asmlinkage int sys_fork(struct pt_regs *regs); +asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, + unsigned long parent_tidptr, + unsigned long child_tidptr, struct pt_regs *regs); +asmlinkage int sys_vfork(struct pt_regs *regs); +asmlinkage int sys_execve(char __user *ufilename, char __user *__user *uargv, + char __user *__user *uenvp, struct pt_regs *regs); + +#endif + +/* + * "Conditional" syscalls + * + * What we want is __attribute__((weak,alias("sys_ni_syscall"))), + * but it doesn't work on all toolchains, so we just do it by hand + */ +#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall"); + +#endif /* __ASM_AVR32_UNISTD_H */
diff --git a/include/asm-avr32/user.h b/include/asm-avr32/user.h new file mode 100644 index 0000000..060fb3a --- /dev/null +++ b/include/asm-avr32/user.h
@@ -0,0 +1,65 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Note: We may not need these definitions for AVR32, as we don't + * support a.out. + */ +#ifndef __ASM_AVR32_USER_H +#define __ASM_AVR32_USER_H + +#include <linux/types.h> +#include <asm/ptrace.h> +#include <asm/page.h> + +/* + * Core file format: The core file is written in such a way that gdb + * can understand it and provide useful information to the user (under + * linux we use the `trad-core' bfd). The file contents are as follows: + * + * upage: 1 page consisting of a user struct that tells gdb + * what is present in the file. Directly after this is a + * copy of the task_struct, which is currently not used by gdb, + * but it may come in handy at some point. All of the registers + * are stored as part of the upage. The upage should always be + * only one page long. + * data: The data segment follows next. We use current->end_text to + * current->brk to pick up all of the user variables, plus any memory + * that may have been sbrk'ed. No attempt is made to determine if a + * page is demand-zero or if a page is totally unused, we just cover + * the entire range. All of the addresses are rounded in such a way + * that an integral number of pages is written. + * stack: We need the stack information in order to get a meaningful + * backtrace. We need to write the data from usp to + * current->start_stack, so we round each of these in order to be able + * to write an integer number of pages. + */ + +struct user_fpu_struct { + /* We have no FPU (yet) */ +}; + +struct user { + struct pt_regs regs; /* entire machine state */ + size_t u_tsize; /* text size (pages) */ + size_t u_dsize; /* data size (pages) */ + size_t u_ssize; /* stack size (pages) */ + unsigned long start_code; /* text starting address */ + unsigned long start_data; /* data starting address */ + unsigned long start_stack; /* stack starting address */ + long int signal; /* signal causing core dump */ + struct regs * u_ar0; /* help gdb find registers */ + unsigned long magic; /* identifies a core file */ + char u_comm[32]; /* user command name */ +}; + +#define NBPG PAGE_SIZE +#define UPAGES 1 +#define HOST_TEXT_START_ADDR (u.start_code) +#define HOST_DATA_START_ADDR (u.start_data) +#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) + +#endif /* __ASM_AVR32_USER_H */
diff --git a/include/asm-cris/pgtable.h b/include/asm-cris/pgtable.h index 5d76c1c..c94a710 100644 --- a/include/asm-cris/pgtable.h +++ b/include/asm-cris/pgtable.h
@@ -253,7 +253,7 @@ { pmd_val(*pmdp) = _PAGE_TABLE | (unsigned long) ptep; } #define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)) -#define pmd_page_kernel(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) +#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) /* to find an entry in a page-table-directory. */ #define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) @@ -271,7 +271,7 @@ #define __pte_offset(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir, address) \ - ((pte_t *) pmd_page_kernel(*(dir)) + __pte_offset(address)) + ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address)) #define pte_offset_map(dir, address) \ ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address)) #define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
diff --git a/include/asm-frv/bitops.h b/include/asm-frv/bitops.h index 980ae1b..1f70d47 100644 --- a/include/asm-frv/bitops.h +++ b/include/asm-frv/bitops.h
@@ -157,23 +157,105 @@ __constant_test_bit((nr),(addr)) : \ __test_bit((nr),(addr))) -#include <asm-generic/bitops/ffs.h> -#include <asm-generic/bitops/__ffs.h> #include <asm-generic/bitops/find.h> -/* - * fls: find last bit set. +/** + * fls - find last bit set + * @x: the word to search + * + * This is defined the same way as ffs: + * - return 32..1 to indicate bit 31..0 most significant bit set + * - return 0 to indicate no bits set */ #define fls(x) \ ({ \ int bit; \ \ - asm("scan %1,gr0,%0" : "=r"(bit) : "r"(x)); \ + asm(" subcc %1,gr0,gr0,icc0 \n" \ + " ckne icc0,cc4 \n" \ + " cscan.p %1,gr0,%0 ,cc4,#1 \n" \ + " csub %0,%0,%0 ,cc4,#0 \n" \ + " csub %2,%0,%0 ,cc4,#1 \n" \ + : "=&r"(bit) \ + : "r"(x), "r"(32) \ + : "icc0", "cc4" \ + ); \ \ - bit ? 33 - bit : bit; \ + bit; \ }) -#include <asm-generic/bitops/fls64.h> +/** + * fls64 - find last bit set in a 64-bit value + * @n: the value to search + * + * This is defined the same way as ffs: + * - return 64..1 to indicate bit 63..0 most significant bit set + * - return 0 to indicate no bits set + */ +static inline __attribute__((const)) +int fls64(u64 n) +{ + union { + u64 ll; + struct { u32 h, l; }; + } _; + int bit, x, y; + + _.ll = n; + + asm(" subcc.p %3,gr0,gr0,icc0 \n" + " subcc %4,gr0,gr0,icc1 \n" + " ckne icc0,cc4 \n" + " ckne icc1,cc5 \n" + " norcr cc4,cc5,cc6 \n" + " csub.p %0,%0,%0 ,cc6,1 \n" + " orcr cc5,cc4,cc4 \n" + " andcr cc4,cc5,cc4 \n" + " cscan.p %3,gr0,%0 ,cc4,0 \n" + " setlos #64,%1 \n" + " cscan.p %4,gr0,%0 ,cc4,1 \n" + " setlos #32,%2 \n" + " csub.p %1,%0,%0 ,cc4,0 \n" + " csub %2,%0,%0 ,cc4,1 \n" + : "=&r"(bit), "=r"(x), "=r"(y) + : "0r"(_.h), "r"(_.l) + : "icc0", "icc1", "cc4", "cc5", "cc6" + ); + return bit; + +} + +/** + * ffs - find first bit set + * @x: the word to search + * + * - return 32..1 to indicate bit 31..0 most least significant bit set + * - return 0 to indicate no bits set + */ +static inline __attribute__((const)) +int ffs(int x) +{ + /* Note: (x & -x) gives us a mask that is the least significant + * (rightmost) 1-bit of the value in x. + */ + return fls(x & -x); +} + +/** + * __ffs - find first bit set + * @x: the word to search + * + * - return 31..0 to indicate bit 31..0 most least significant bit set + * - if no bits are set in x, the result is undefined + */ +static inline __attribute__((const)) +int __ffs(unsigned long x) +{ + int bit; + asm("scan %1,gr0,%0" : "=r"(bit) : "r"(x & -x)); + return 31 - bit; +} + #include <asm-generic/bitops/sched.h> #include <asm-generic/bitops/hweight.h>
diff --git a/include/asm-frv/cpu-irqs.h b/include/asm-frv/cpu-irqs.h index 5cd691e..478f349 100644 --- a/include/asm-frv/cpu-irqs.h +++ b/include/asm-frv/cpu-irqs.h
@@ -14,36 +14,6 @@ #ifndef __ASSEMBLY__ -#include <asm/irq-routing.h> - -#define IRQ_BASE_CPU (NR_IRQ_ACTIONS_PER_GROUP * 0) - -/* IRQ IDs presented to drivers */ -enum { - IRQ_CPU__UNUSED = IRQ_BASE_CPU, - IRQ_CPU_UART0, - IRQ_CPU_UART1, - IRQ_CPU_TIMER0, - IRQ_CPU_TIMER1, - IRQ_CPU_TIMER2, - IRQ_CPU_DMA0, - IRQ_CPU_DMA1, - IRQ_CPU_DMA2, - IRQ_CPU_DMA3, - IRQ_CPU_DMA4, - IRQ_CPU_DMA5, - IRQ_CPU_DMA6, - IRQ_CPU_DMA7, - IRQ_CPU_EXTERNAL0, - IRQ_CPU_EXTERNAL1, - IRQ_CPU_EXTERNAL2, - IRQ_CPU_EXTERNAL3, - IRQ_CPU_EXTERNAL4, - IRQ_CPU_EXTERNAL5, - IRQ_CPU_EXTERNAL6, - IRQ_CPU_EXTERNAL7, -}; - /* IRQ to level mappings */ #define IRQ_GDBSTUB_LEVEL 15 #define IRQ_UART_LEVEL 13 @@ -82,6 +52,30 @@ #define IRQ_XIRQ6_LEVEL 7 #define IRQ_XIRQ7_LEVEL 8 +/* IRQ IDs presented to drivers */ +#define IRQ_CPU__UNUSED IRQ_BASE_CPU +#define IRQ_CPU_UART0 (IRQ_BASE_CPU + IRQ_UART0_LEVEL) +#define IRQ_CPU_UART1 (IRQ_BASE_CPU + IRQ_UART1_LEVEL) +#define IRQ_CPU_TIMER0 (IRQ_BASE_CPU + IRQ_TIMER0_LEVEL) +#define IRQ_CPU_TIMER1 (IRQ_BASE_CPU + IRQ_TIMER1_LEVEL) +#define IRQ_CPU_TIMER2 (IRQ_BASE_CPU + IRQ_TIMER2_LEVEL) +#define IRQ_CPU_DMA0 (IRQ_BASE_CPU + IRQ_DMA0_LEVEL) +#define IRQ_CPU_DMA1 (IRQ_BASE_CPU + IRQ_DMA1_LEVEL) +#define IRQ_CPU_DMA2 (IRQ_BASE_CPU + IRQ_DMA2_LEVEL) +#define IRQ_CPU_DMA3 (IRQ_BASE_CPU + IRQ_DMA3_LEVEL) +#define IRQ_CPU_DMA4 (IRQ_BASE_CPU + IRQ_DMA4_LEVEL) +#define IRQ_CPU_DMA5 (IRQ_BASE_CPU + IRQ_DMA5_LEVEL) +#define IRQ_CPU_DMA6 (IRQ_BASE_CPU + IRQ_DMA6_LEVEL) +#define IRQ_CPU_DMA7 (IRQ_BASE_CPU + IRQ_DMA7_LEVEL) +#define IRQ_CPU_EXTERNAL0 (IRQ_BASE_CPU + IRQ_XIRQ0_LEVEL) +#define IRQ_CPU_EXTERNAL1 (IRQ_BASE_CPU + IRQ_XIRQ1_LEVEL) +#define IRQ_CPU_EXTERNAL2 (IRQ_BASE_CPU + IRQ_XIRQ2_LEVEL) +#define IRQ_CPU_EXTERNAL3 (IRQ_BASE_CPU + IRQ_XIRQ3_LEVEL) +#define IRQ_CPU_EXTERNAL4 (IRQ_BASE_CPU + IRQ_XIRQ4_LEVEL) +#define IRQ_CPU_EXTERNAL5 (IRQ_BASE_CPU + IRQ_XIRQ5_LEVEL) +#define IRQ_CPU_EXTERNAL6 (IRQ_BASE_CPU + IRQ_XIRQ6_LEVEL) +#define IRQ_CPU_EXTERNAL7 (IRQ_BASE_CPU + IRQ_XIRQ7_LEVEL) + #endif /* !__ASSEMBLY__ */ #endif /* _ASM_CPU_IRQS_H */
diff --git a/include/asm-frv/hardirq.h b/include/asm-frv/hardirq.h index 7581b5a..fc47515 100644 --- a/include/asm-frv/hardirq.h +++ b/include/asm-frv/hardirq.h
@@ -26,5 +26,10 @@ #error SMP not available on FR-V #endif /* CONFIG_SMP */ +extern atomic_t irq_err_count; +static inline void ack_bad_irq(int irq) +{ + atomic_inc(&irq_err_count); +} #endif
diff --git a/include/asm-frv/irq-routing.h b/include/asm-frv/irq-routing.h deleted file mode 100644 index ac3ab90..0000000 --- a/include/asm-frv/irq-routing.h +++ /dev/null
@@ -1,70 +0,0 @@ -/* irq-routing.h: multiplexed IRQ routing - * - * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#ifndef _ASM_IRQ_ROUTING_H -#define _ASM_IRQ_ROUTING_H - -#ifndef __ASSEMBLY__ - -#include <linux/spinlock.h> -#include <asm/irq.h> - -struct irq_source; -struct irq_level; - -/* - * IRQ action distribution sets - */ -struct irq_group { - int first_irq; /* first IRQ distributed here */ - void (*control)(struct irq_group *group, int index, int on); - - struct irqaction *actions[NR_IRQ_ACTIONS_PER_GROUP]; /* IRQ action chains */ - struct irq_source *sources[NR_IRQ_ACTIONS_PER_GROUP]; /* IRQ sources */ - int disable_cnt[NR_IRQ_ACTIONS_PER_GROUP]; /* disable counts */ -}; - -/* - * IRQ source manager - */ -struct irq_source { - struct irq_source *next; - struct irq_level *level; - const char *muxname; - volatile void __iomem *muxdata; - unsigned long irqmask; - - void (*doirq)(struct irq_source *source); -}; - -/* - * IRQ level management (per CPU IRQ priority / entry vector) - */ -struct irq_level { - int usage; - int disable_count; - unsigned long flags; /* current IRQF_DISABLED and IRQF_SHARED settings */ - spinlock_t lock; - struct irq_source *sources; -}; - -extern struct irq_level frv_irq_levels[16]; -extern struct irq_group *irq_groups[NR_IRQ_GROUPS]; - -extern void frv_irq_route(struct irq_source *source, int irqlevel); -extern void frv_irq_route_external(struct irq_source *source, int irq); -extern void frv_irq_set_group(struct irq_group *group); -extern void distribute_irqs(struct irq_group *group, unsigned long irqmask); -extern void route_cpu_irqs(void); - -#endif /* !__ASSEMBLY__ */ - -#endif /* _ASM_IRQ_ROUTING_H */
diff --git a/include/asm-frv/irq.h b/include/asm-frv/irq.h index 58b6192..8fefd6b 100644 --- a/include/asm-frv/irq.h +++ b/include/asm-frv/irq.h
@@ -1,6 +1,6 @@ /* irq.h: FRV IRQ definitions * - * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. + * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or @@ -12,32 +12,22 @@ #ifndef _ASM_IRQ_H_ #define _ASM_IRQ_H_ - -/* - * the system has an on-CPU PIC and another PIC on the FPGA and other PICs on other peripherals, - * so we do some routing in irq-routing.[ch] to reduce the number of false-positives seen by - * drivers - */ - /* this number is used when no interrupt has been assigned */ #define NO_IRQ (-1) -#define NR_IRQ_LOG2_ACTIONS_PER_GROUP 5 -#define NR_IRQ_ACTIONS_PER_GROUP (1 << NR_IRQ_LOG2_ACTIONS_PER_GROUP) -#define NR_IRQ_GROUPS 4 -#define NR_IRQS (NR_IRQ_ACTIONS_PER_GROUP * NR_IRQ_GROUPS) +#define NR_IRQS 48 +#define IRQ_BASE_CPU (0 * 16) +#define IRQ_BASE_FPGA (1 * 16) +#define IRQ_BASE_MB93493 (2 * 16) /* probe returns a 32-bit IRQ mask:-/ */ -#define MIN_PROBE_IRQ (NR_IRQS - 32) +#define MIN_PROBE_IRQ (NR_IRQS - 32) +#ifndef __ASSEMBLY__ static inline int irq_canonicalize(int irq) { return irq; } - -extern void disable_irq_nosync(unsigned int irq); -extern void disable_irq(unsigned int irq); -extern void enable_irq(unsigned int irq); - +#endif #endif /* _ASM_IRQ_H_ */
diff --git a/include/asm-frv/libata-portmap.h b/include/asm-frv/libata-portmap.h deleted file mode 100644 index 75484ef..0000000 --- a/include/asm-frv/libata-portmap.h +++ /dev/null
@@ -1 +0,0 @@ -#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-frv/mb93091-fpga-irqs.h b/include/asm-frv/mb93091-fpga-irqs.h index 341bfc5..19778c5b 100644 --- a/include/asm-frv/mb93091-fpga-irqs.h +++ b/include/asm-frv/mb93091-fpga-irqs.h
@@ -12,12 +12,10 @@ #ifndef _ASM_MB93091_FPGA_IRQS_H #define _ASM_MB93091_FPGA_IRQS_H +#include <asm/irq.h> + #ifndef __ASSEMBLY__ -#include <asm/irq-routing.h> - -#define IRQ_BASE_FPGA (NR_IRQ_ACTIONS_PER_GROUP * 1) - /* IRQ IDs presented to drivers */ enum { IRQ_FPGA__UNUSED = IRQ_BASE_FPGA,
diff --git a/include/asm-frv/mb93093-fpga-irqs.h b/include/asm-frv/mb93093-fpga-irqs.h index 1e0f11c..590266b 100644 --- a/include/asm-frv/mb93093-fpga-irqs.h +++ b/include/asm-frv/mb93093-fpga-irqs.h
@@ -12,12 +12,10 @@ #ifndef _ASM_MB93093_FPGA_IRQS_H #define _ASM_MB93093_FPGA_IRQS_H +#include <asm/irq.h> + #ifndef __ASSEMBLY__ -#include <asm/irq-routing.h> - -#define IRQ_BASE_FPGA (NR_IRQ_ACTIONS_PER_GROUP * 1) - /* IRQ IDs presented to drivers */ enum { IRQ_FPGA_PUSH_BUTTON_SW1_5 = IRQ_BASE_FPGA + 8,
diff --git a/include/asm-frv/mb93493-irqs.h b/include/asm-frv/mb93493-irqs.h index 15096e7..82c7aed 100644 --- a/include/asm-frv/mb93493-irqs.h +++ b/include/asm-frv/mb93493-irqs.h
@@ -12,12 +12,10 @@ #ifndef _ASM_MB93493_IRQS_H #define _ASM_MB93493_IRQS_H +#include <asm/irq.h> + #ifndef __ASSEMBLY__ -#include <asm/irq-routing.h> - -#define IRQ_BASE_MB93493 (NR_IRQ_ACTIONS_PER_GROUP * 2) - /* IRQ IDs presented to drivers */ enum { IRQ_MB93493_VDC = IRQ_BASE_MB93493 + 0,
diff --git a/include/asm-frv/mb93493-regs.h b/include/asm-frv/mb93493-regs.h index c54aa9d..8a1f6aa 100644 --- a/include/asm-frv/mb93493-regs.h +++ b/include/asm-frv/mb93493-regs.h
@@ -15,6 +15,7 @@ #include <asm/mb-regs.h> #include <asm/mb93493-irqs.h> +#define __addr_MB93493(X) ((volatile unsigned long *)(__region_CS3 + (X))) #define __get_MB93493(X) ({ *(volatile unsigned long *)(__region_CS3 + (X)); }) #define __set_MB93493(X,V) \ @@ -26,6 +27,7 @@ #define __set_MB93493_STSR(X,V) __set_MB93493(0x3c0 + (X) * 4, (V)) #define MB93493_STSR_EN +#define __addr_MB93493_IQSR(X) __addr_MB93493(0x3d0 + (X) * 4) #define __get_MB93493_IQSR(X) __get_MB93493(0x3d0 + (X) * 4) #define __set_MB93493_IQSR(X,V) __set_MB93493(0x3d0 + (X) * 4, (V))
diff --git a/include/asm-frv/pgtable.h b/include/asm-frv/pgtable.h index 7af7485..2fb3c6f 100644 --- a/include/asm-frv/pgtable.h +++ b/include/asm-frv/pgtable.h
@@ -217,7 +217,7 @@ } #define pgd_page(pgd) (pud_page((pud_t){ pgd })) -#define pgd_page_kernel(pgd) (pud_page_kernel((pud_t){ pgd })) +#define pgd_page_vaddr(pgd) (pud_page_vaddr((pud_t){ pgd })) /* * allocating and freeing a pud is trivial: the 1-entry pud is @@ -246,7 +246,7 @@ #define set_pud(pudptr, pudval) set_pmd((pmd_t *)(pudptr), (pmd_t) { pudval }) #define pud_page(pud) (pmd_page((pmd_t){ pud })) -#define pud_page_kernel(pud) (pmd_page_kernel((pmd_t){ pud })) +#define pud_page_vaddr(pud) (pmd_page_vaddr((pmd_t){ pud })) /* * (pmds are folded into pgds so this doesn't get actually called, @@ -362,7 +362,7 @@ #define pmd_bad(x) (pmd_val(x) & xAMPRx_SS) #define pmd_clear(xp) do { __set_pmd(xp, 0); } while(0) -#define pmd_page_kernel(pmd) \ +#define pmd_page_vaddr(pmd) \ ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) #ifndef CONFIG_DISCONTIGMEM @@ -458,7 +458,7 @@ #define pte_index(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir, address) \ - ((pte_t *) pmd_page_kernel(*(dir)) + pte_index(address)) + ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address)) #if defined(CONFIG_HIGHPTE) #define pte_offset_map(dir, address) \
diff --git a/include/asm-frv/unistd.h b/include/asm-frv/unistd.h index b80dbd8..d104d1b 100644 --- a/include/asm-frv/unistd.h +++ b/include/asm-frv/unistd.h
@@ -320,6 +320,7 @@ #ifdef __KERNEL__ #define NR_syscalls 310 +#include <linux/err.h> /* * process the return value of a syscall, consigning it to one of two possible fates @@ -329,7 +330,7 @@ #define __syscall_return(type, res) \ do { \ unsigned long __sr2 = (res); \ - if (__builtin_expect(__sr2 >= (unsigned long)(-4095), 0)) { \ + if (__builtin_expect(__sr2 >= (unsigned long)(-MAX_ERRNO), 0)) { \ errno = (-__sr2); \ __sr2 = ~0UL; \ } \
diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h index 68c6fea..7b88d39 100644 --- a/include/asm-generic/4level-fixup.h +++ b/include/asm-generic/4level-fixup.h
@@ -21,6 +21,10 @@ #define pud_present(pud) 1 #define pud_ERROR(pud) do { } while (0) #define pud_clear(pud) pgd_clear(pud) +#define pud_val(pud) pgd_val(pud) +#define pud_populate(mm, pud, pmd) pgd_populate(mm, pud, pmd) +#define pud_page(pud) pgd_page(pud) +#define pud_page_vaddr(pud) pgd_page_vaddr(pud) #undef pud_free_tlb #define pud_free_tlb(tlb, x) do { } while (0)
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h index e160e04..6d45ee5 100644 --- a/include/asm-generic/percpu.h +++ b/include/asm-generic/percpu.h
@@ -14,7 +14,9 @@ __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name /* var is in discarded region: offset to particular copy we want */ -#define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu])) +#define per_cpu(var, cpu) (*({ \ + extern int simple_indentifier_##var(void); \ + RELOC_HIDE(&per_cpu__##var, __per_cpu_offset[cpu]); })) #define __get_cpu_var(var) per_cpu(var, smp_processor_id()) #define __raw_get_cpu_var(var) per_cpu(var, raw_smp_processor_id())
diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h index c8d53ba..29ff5d8 100644 --- a/include/asm-generic/pgtable-nopmd.h +++ b/include/asm-generic/pgtable-nopmd.h
@@ -47,7 +47,7 @@ #define __pmd(x) ((pmd_t) { __pud(x) } ) #define pud_page(pud) (pmd_page((pmd_t){ pud })) -#define pud_page_kernel(pud) (pmd_page_kernel((pmd_t){ pud })) +#define pud_page_vaddr(pud) (pmd_page_vaddr((pmd_t){ pud })) /* * allocating and freeing a pmd is trivial: the 1-entry pmd is
diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h index 82e29f0..5664645 100644 --- a/include/asm-generic/pgtable-nopud.h +++ b/include/asm-generic/pgtable-nopud.h
@@ -44,7 +44,7 @@ #define __pud(x) ((pud_t) { __pgd(x) } ) #define pgd_page(pgd) (pud_page((pud_t){ pgd })) -#define pgd_page_kernel(pgd) (pud_page_kernel((pud_t){ pgd })) +#define pgd_page_vaddr(pgd) (pud_page_vaddr((pud_t){ pgd })) /* * allocating and freeing a pud is trivial: the 1-entry pud is
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index c2059a3..349260c 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h
@@ -1,6 +1,8 @@ #ifndef _ASM_GENERIC_PGTABLE_H #define _ASM_GENERIC_PGTABLE_H +#ifndef __ASSEMBLY__ + #ifndef __HAVE_ARCH_PTEP_ESTABLISH /* * Establish a new mapping: @@ -188,7 +190,6 @@ }) #endif -#ifndef __ASSEMBLY__ /* * When walking page tables, we usually want to skip any p?d_none entries; * and any p?d_bad entries - reporting the error before resetting to none.
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index db5a373..69240b5 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h
@@ -118,15 +118,15 @@ __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ *(__ksymtab_strings) \ } \ - __end_rodata = .; \ - . = ALIGN(4096); \ \ /* Built-in module parameters. */ \ __param : AT(ADDR(__param) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start___param) = .; \ *(__param) \ VMLINUX_SYMBOL(__stop___param) = .; \ - } + } \ + __end_rodata = .; \ + . = ALIGN(4096); #define SECURITY_INIT \ .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ @@ -194,3 +194,6 @@ .stab.index 0 : { *(.stab.index) } \ .stab.indexstr 0 : { *(.stab.indexstr) } \ .comment 0 : { *(.comment) } + +#define NOTES \ + .notes : { *(.note.*) } :note
diff --git a/include/asm-h8300/unistd.h b/include/asm-h8300/unistd.h index 226dd59..a2dd904 100644 --- a/include/asm-h8300/unistd.h +++ b/include/asm-h8300/unistd.h
@@ -295,14 +295,14 @@ #ifdef __KERNEL__ #define NR_syscalls 289 +#include <linux/err.h> - -/* user-visible error numbers are in the range -1 - -122: see +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: see <asm-m68k/errno.h> */ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ /* avoid using res which is declared to be in register d0; \ errno might expand to a function call and clobber it. */ \ int __err = -(res); \
diff --git a/include/asm-i386/Kbuild b/include/asm-i386/Kbuild index b75a348..147e4ac 100644 --- a/include/asm-i386/Kbuild +++ b/include/asm-i386/Kbuild
@@ -3,6 +3,7 @@ header-y += boot.h header-y += debugreg.h header-y += ldt.h +header-y += ptrace-abi.h header-y += ucontext.h unifdef-y += mtrr.h
diff --git a/include/asm-i386/acpi.h b/include/asm-i386/acpi.h index 20f5239..6016632 100644 --- a/include/asm-i386/acpi.h +++ b/include/asm-i386/acpi.h
@@ -131,21 +131,7 @@ extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq); #ifdef CONFIG_X86_IO_APIC -extern int skip_ioapic_setup; extern int acpi_skip_timer_override; - -static inline void disable_ioapic_setup(void) -{ - skip_ioapic_setup = 1; -} - -static inline int ioapic_setup_disabled(void) -{ - return skip_ioapic_setup; -} - -#else -static inline void disable_ioapic_setup(void) { } #endif static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
diff --git a/include/asm-i386/alternative-asm.i b/include/asm-i386/alternative-asm.i new file mode 100644 index 0000000..6c47e3b --- /dev/null +++ b/include/asm-i386/alternative-asm.i
@@ -0,0 +1,14 @@ +#include <linux/config.h> + +#ifdef CONFIG_SMP + .macro LOCK_PREFIX +1: lock + .section .smp_locks,"a" + .align 4 + .long 1b + .previous + .endm +#else + .macro LOCK_PREFIX + .endm +#endif
diff --git a/include/asm-i386/apic.h b/include/asm-i386/apic.h index 2c1e371..3a42b7d 100644 --- a/include/asm-i386/apic.h +++ b/include/asm-i386/apic.h
@@ -16,20 +16,8 @@ #define APIC_VERBOSE 1 #define APIC_DEBUG 2 -extern int enable_local_apic; extern int apic_verbosity; -static inline void lapic_disable(void) -{ - enable_local_apic = -1; - clear_bit(X86_FEATURE_APIC, boot_cpu_data.x86_capability); -} - -static inline void lapic_enable(void) -{ - enable_local_apic = 1; -} - /* * Define the default level of output to be very little * This can be turned up by using apic=verbose for more @@ -42,6 +30,8 @@ } while (0) +extern void generic_apic_probe(void); + #ifdef CONFIG_X86_LOCAL_APIC /* @@ -117,8 +107,6 @@ extern void enable_NMI_through_LVT0 (void * dummy); -extern int disable_timer_pin_1; - void smp_send_timer_broadcast_ipi(struct pt_regs *regs); void switch_APIC_timer_to_ipi(void *cpumask); void switch_ipi_to_APIC_timer(void *cpumask);
diff --git a/include/asm-i386/desc.h b/include/asm-i386/desc.h index 89b8b82..5874ef1 100644 --- a/include/asm-i386/desc.h +++ b/include/asm-i386/desc.h
@@ -33,50 +33,99 @@ return (struct desc_struct *)per_cpu(cpu_gdt_descr, cpu).address; } -#define load_TR_desc() __asm__ __volatile__("ltr %w0"::"q" (GDT_ENTRY_TSS*8)) -#define load_LDT_desc() __asm__ __volatile__("lldt %w0"::"q" (GDT_ENTRY_LDT*8)) - -#define load_gdt(dtr) __asm__ __volatile("lgdt %0"::"m" (*dtr)) -#define load_idt(dtr) __asm__ __volatile("lidt %0"::"m" (*dtr)) -#define load_tr(tr) __asm__ __volatile("ltr %0"::"mr" (tr)) -#define load_ldt(ldt) __asm__ __volatile("lldt %0"::"mr" (ldt)) - -#define store_gdt(dtr) __asm__ ("sgdt %0":"=m" (*dtr)) -#define store_idt(dtr) __asm__ ("sidt %0":"=m" (*dtr)) -#define store_tr(tr) __asm__ ("str %0":"=mr" (tr)) -#define store_ldt(ldt) __asm__ ("sldt %0":"=mr" (ldt)) - /* * This is the ldt that every process will get unless we need * something other than this. */ extern struct desc_struct default_ldt[]; +extern struct desc_struct idt_table[]; extern void set_intr_gate(unsigned int irq, void * addr); -#define _set_tssldt_desc(n,addr,limit,type) \ -__asm__ __volatile__ ("movw %w3,0(%2)\n\t" \ - "movw %w1,2(%2)\n\t" \ - "rorl $16,%1\n\t" \ - "movb %b1,4(%2)\n\t" \ - "movb %4,5(%2)\n\t" \ - "movb $0,6(%2)\n\t" \ - "movb %h1,7(%2)\n\t" \ - "rorl $16,%1" \ - : "=m"(*(n)) : "q" (addr), "r"(n), "ir"(limit), "i"(type)) - -static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, void *addr) +static inline void pack_descriptor(__u32 *a, __u32 *b, + unsigned long base, unsigned long limit, unsigned char type, unsigned char flags) { - _set_tssldt_desc(&get_cpu_gdt_table(cpu)[entry], (int)addr, - offsetof(struct tss_struct, __cacheline_filler) - 1, 0x89); + *a = ((base & 0xffff) << 16) | (limit & 0xffff); + *b = (base & 0xff000000) | ((base & 0xff0000) >> 16) | + (limit & 0x000f0000) | ((type & 0xff) << 8) | ((flags & 0xf) << 20); +} + +static inline void pack_gate(__u32 *a, __u32 *b, + unsigned long base, unsigned short seg, unsigned char type, unsigned char flags) +{ + *a = (seg << 16) | (base & 0xffff); + *b = (base & 0xffff0000) | ((type & 0xff) << 8) | (flags & 0xff); +} + +#define DESCTYPE_LDT 0x82 /* present, system, DPL-0, LDT */ +#define DESCTYPE_TSS 0x89 /* present, system, DPL-0, 32-bit TSS */ +#define DESCTYPE_TASK 0x85 /* present, system, DPL-0, task gate */ +#define DESCTYPE_INT 0x8e /* present, system, DPL-0, interrupt gate */ +#define DESCTYPE_TRAP 0x8f /* present, system, DPL-0, trap gate */ +#define DESCTYPE_DPL3 0x60 /* DPL-3 */ +#define DESCTYPE_S 0x10 /* !system */ + +#define load_TR_desc() __asm__ __volatile__("ltr %w0"::"q" (GDT_ENTRY_TSS*8)) +#define load_LDT_desc() __asm__ __volatile__("lldt %w0"::"q" (GDT_ENTRY_LDT*8)) + +#define load_gdt(dtr) __asm__ __volatile("lgdt %0"::"m" (*dtr)) +#define load_idt(dtr) __asm__ __volatile("lidt %0"::"m" (*dtr)) +#define load_tr(tr) __asm__ __volatile("ltr %0"::"m" (tr)) +#define load_ldt(ldt) __asm__ __volatile("lldt %0"::"m" (ldt)) + +#define store_gdt(dtr) __asm__ ("sgdt %0":"=m" (*dtr)) +#define store_idt(dtr) __asm__ ("sidt %0":"=m" (*dtr)) +#define store_tr(tr) __asm__ ("str %0":"=m" (tr)) +#define store_ldt(ldt) __asm__ ("sldt %0":"=m" (ldt)) + +#if TLS_SIZE != 24 +# error update this code. +#endif + +static inline void load_TLS(struct thread_struct *t, unsigned int cpu) +{ +#define C(i) get_cpu_gdt_table(cpu)[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i] + C(0); C(1); C(2); +#undef C +} + +static inline void write_dt_entry(void *dt, int entry, __u32 entry_a, __u32 entry_b) +{ + __u32 *lp = (__u32 *)((char *)dt + entry*8); + *lp = entry_a; + *(lp+1) = entry_b; +} + +#define write_ldt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b) +#define write_gdt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b) +#define write_idt_entry(dt, entry, a, b) write_dt_entry(dt, entry, a, b) + +static inline void _set_gate(int gate, unsigned int type, void *addr, unsigned short seg) +{ + __u32 a, b; + pack_gate(&a, &b, (unsigned long)addr, seg, type, 0); + write_idt_entry(idt_table, gate, a, b); +} + +static inline void __set_tss_desc(unsigned int cpu, unsigned int entry, const void *addr) +{ + __u32 a, b; + pack_descriptor(&a, &b, (unsigned long)addr, + offsetof(struct tss_struct, __cacheline_filler) - 1, + DESCTYPE_TSS, 0); + write_gdt_entry(get_cpu_gdt_table(cpu), entry, a, b); +} + +static inline void set_ldt_desc(unsigned int cpu, void *addr, unsigned int entries) +{ + __u32 a, b; + pack_descriptor(&a, &b, (unsigned long)addr, + entries * sizeof(struct desc_struct) - 1, + DESCTYPE_LDT, 0); + write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT, a, b); } #define set_tss_desc(cpu,addr) __set_tss_desc(cpu, GDT_ENTRY_TSS, addr) -static inline void set_ldt_desc(unsigned int cpu, void *addr, unsigned int size) -{ - _set_tssldt_desc(&get_cpu_gdt_table(cpu)[GDT_ENTRY_LDT], (int)addr, ((size << 3)-1), 0x82); -} - #define LDT_entry_a(info) \ ((((info)->base_addr & 0x0000ffff) << 16) | ((info)->limit & 0x0ffff)) @@ -102,24 +151,6 @@ (info)->seg_not_present == 1 && \ (info)->useable == 0 ) -static inline void write_ldt_entry(void *ldt, int entry, __u32 entry_a, __u32 entry_b) -{ - __u32 *lp = (__u32 *)((char *)ldt + entry*8); - *lp = entry_a; - *(lp+1) = entry_b; -} - -#if TLS_SIZE != 24 -# error update this code. -#endif - -static inline void load_TLS(struct thread_struct *t, unsigned int cpu) -{ -#define C(i) get_cpu_gdt_table(cpu)[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i] - C(0); C(1); C(2); -#undef C -} - static inline void clear_LDT(void) { int cpu = get_cpu();
diff --git a/include/asm-i386/dma-mapping.h b/include/asm-i386/dma-mapping.h index 9cf20ca..576ae01 100644 --- a/include/asm-i386/dma-mapping.h +++ b/include/asm-i386/dma-mapping.h
@@ -21,8 +21,7 @@ dma_map_single(struct device *dev, void *ptr, size_t size, enum dma_data_direction direction) { - if (direction == DMA_NONE) - BUG(); + BUG_ON(direction == DMA_NONE); WARN_ON(size == 0); flush_write_buffers(); return virt_to_phys(ptr); @@ -32,8 +31,7 @@ dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, enum dma_data_direction direction) { - if (direction == DMA_NONE) - BUG(); + BUG_ON(direction == DMA_NONE); } static inline int @@ -42,8 +40,7 @@ { int i; - if (direction == DMA_NONE) - BUG(); + BUG_ON(direction == DMA_NONE); WARN_ON(nents == 0 || sg[0].length == 0); for (i = 0; i < nents; i++ ) {
diff --git a/include/asm-i386/dwarf2.h b/include/asm-i386/dwarf2.h index 2280f62..6d66398 100644 --- a/include/asm-i386/dwarf2.h +++ b/include/asm-i386/dwarf2.h
@@ -1,8 +1,6 @@ #ifndef _DWARF2_H #define _DWARF2_H -#include <linux/config.h> - #ifndef __ASSEMBLY__ #warning "asm/dwarf2.h should be only included in pure assembly files" #endif @@ -28,6 +26,13 @@ #define CFI_RESTORE .cfi_restore #define CFI_REMEMBER_STATE .cfi_remember_state #define CFI_RESTORE_STATE .cfi_restore_state +#define CFI_UNDEFINED .cfi_undefined + +#ifdef CONFIG_AS_CFI_SIGNAL_FRAME +#define CFI_SIGNAL_FRAME .cfi_signal_frame +#else +#define CFI_SIGNAL_FRAME +#endif #else @@ -48,6 +53,8 @@ #define CFI_RESTORE ignore #define CFI_REMEMBER_STATE ignore #define CFI_RESTORE_STATE ignore +#define CFI_UNDEFINED ignore +#define CFI_SIGNAL_FRAME ignore #endif
diff --git a/include/asm-i386/e820.h b/include/asm-i386/e820.h index ca82acb..f7514fb 100644 --- a/include/asm-i386/e820.h +++ b/include/asm-i386/e820.h
@@ -18,7 +18,7 @@ #define E820_RAM 1 #define E820_RESERVED 2 -#define E820_ACPI 3 /* usable as RAM once ACPI tables have been read */ +#define E820_ACPI 3 #define E820_NVS 4 #define HIGH_MEMORY (1024*1024)
diff --git a/include/asm-i386/fixmap.h b/include/asm-i386/fixmap.h index a48cc3f..02428cb 100644 --- a/include/asm-i386/fixmap.h +++ b/include/asm-i386/fixmap.h
@@ -19,7 +19,11 @@ * Leave one empty page between vmalloc'ed areas and * the start of the fixmap. */ -#define __FIXADDR_TOP 0xfffff000 +#ifndef CONFIG_COMPAT_VDSO +extern unsigned long __FIXADDR_TOP; +#else +#define __FIXADDR_TOP 0xfffff000 +#endif #ifndef __ASSEMBLY__ #include <linux/kernel.h> @@ -93,6 +97,7 @@ extern void __set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t flags); +extern void reserve_top_address(unsigned long reserve); #define set_fixmap(idx, phys) \ __set_fixmap(idx, phys, PAGE_KERNEL)
diff --git a/include/asm-i386/frame.i b/include/asm-i386/frame.i new file mode 100644 index 0000000..4d68ddc --- /dev/null +++ b/include/asm-i386/frame.i
@@ -0,0 +1,24 @@ +#include <linux/config.h> +#include <asm/dwarf2.h> + +/* The annotation hides the frame from the unwinder and makes it look + like a ordinary ebp save/restore. This avoids some special cases for + frame pointer later */ +#ifdef CONFIG_FRAME_POINTER + .macro FRAME + pushl %ebp + CFI_ADJUST_CFA_OFFSET 4 + CFI_REL_OFFSET ebp,0 + movl %esp,%ebp + .endm + .macro ENDFRAME + popl %ebp + CFI_ADJUST_CFA_OFFSET -4 + CFI_RESTORE ebp + .endm +#else + .macro FRAME + .endm + .macro ENDFRAME + .endm +#endif
diff --git a/include/asm-i386/genapic.h b/include/asm-i386/genapic.h index b3783a3..8ffbb0f 100644 --- a/include/asm-i386/genapic.h +++ b/include/asm-i386/genapic.h
@@ -1,6 +1,8 @@ #ifndef _ASM_GENAPIC_H #define _ASM_GENAPIC_H 1 +#include <asm/mpspec.h> + /* * Generic APIC driver interface. * @@ -63,14 +65,25 @@ unsigned (*get_apic_id)(unsigned long x); unsigned long apic_id_mask; unsigned int (*cpu_mask_to_apicid)(cpumask_t cpumask); - + +#ifdef CONFIG_SMP /* ipi */ void (*send_IPI_mask)(cpumask_t mask, int vector); void (*send_IPI_allbutself)(int vector); void (*send_IPI_all)(int vector); +#endif }; -#define APICFUNC(x) .x = x +#define APICFUNC(x) .x = x, + +/* More functions could be probably marked IPIFUNC and save some space + in UP GENERICARCH kernels, but I don't have the nerve right now + to untangle this mess. -AK */ +#ifdef CONFIG_SMP +#define IPIFUNC(x) APICFUNC(x) +#else +#define IPIFUNC(x) +#endif #define APIC_INIT(aname, aprobe) { \ .name = aname, \ @@ -80,33 +93,33 @@ .no_balance_irq = NO_BALANCE_IRQ, \ .ESR_DISABLE = esr_disable, \ .apic_destination_logical = APIC_DEST_LOGICAL, \ - APICFUNC(apic_id_registered), \ - APICFUNC(target_cpus), \ - APICFUNC(check_apicid_used), \ - APICFUNC(check_apicid_present), \ - APICFUNC(init_apic_ldr), \ - APICFUNC(ioapic_phys_id_map), \ - APICFUNC(clustered_apic_check), \ - APICFUNC(multi_timer_check), \ - APICFUNC(apicid_to_node), \ - APICFUNC(cpu_to_logical_apicid), \ - APICFUNC(cpu_present_to_apicid), \ - APICFUNC(apicid_to_cpu_present), \ - APICFUNC(mpc_apic_id), \ - APICFUNC(setup_portio_remap), \ - APICFUNC(check_phys_apicid_present), \ - APICFUNC(mpc_oem_bus_info), \ - APICFUNC(mpc_oem_pci_bus), \ - APICFUNC(mps_oem_check), \ - APICFUNC(get_apic_id), \ + APICFUNC(apic_id_registered) \ + APICFUNC(target_cpus) \ + APICFUNC(check_apicid_used) \ + APICFUNC(check_apicid_present) \ + APICFUNC(init_apic_ldr) \ + APICFUNC(ioapic_phys_id_map) \ + APICFUNC(clustered_apic_check) \ + APICFUNC(multi_timer_check) \ + APICFUNC(apicid_to_node) \ + APICFUNC(cpu_to_logical_apicid) \ + APICFUNC(cpu_present_to_apicid) \ + APICFUNC(apicid_to_cpu_present) \ + APICFUNC(mpc_apic_id) \ + APICFUNC(setup_portio_remap) \ + APICFUNC(check_phys_apicid_present) \ + APICFUNC(mpc_oem_bus_info) \ + APICFUNC(mpc_oem_pci_bus) \ + APICFUNC(mps_oem_check) \ + APICFUNC(get_apic_id) \ .apic_id_mask = APIC_ID_MASK, \ - APICFUNC(cpu_mask_to_apicid), \ - APICFUNC(acpi_madt_oem_check), \ - APICFUNC(send_IPI_mask), \ - APICFUNC(send_IPI_allbutself), \ - APICFUNC(send_IPI_all), \ - APICFUNC(enable_apic_mode), \ - APICFUNC(phys_pkg_id), \ + APICFUNC(cpu_mask_to_apicid) \ + APICFUNC(acpi_madt_oem_check) \ + IPIFUNC(send_IPI_mask) \ + IPIFUNC(send_IPI_allbutself) \ + IPIFUNC(send_IPI_all) \ + APICFUNC(enable_apic_mode) \ + APICFUNC(phys_pkg_id) \ } extern struct genapic *genapic;
diff --git a/include/asm-i386/intel_arch_perfmon.h b/include/asm-i386/intel_arch_perfmon.h index 134ea9c..b52cd60 100644 --- a/include/asm-i386/intel_arch_perfmon.h +++ b/include/asm-i386/intel_arch_perfmon.h
@@ -14,6 +14,18 @@ #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL (0x3c) #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8) -#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT (1 << 0) +#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX (0) +#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT \ + (1 << (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX)) + +union cpuid10_eax { + struct { + unsigned int version_id:8; + unsigned int num_counters:8; + unsigned int bit_width:8; + unsigned int mask_length:8; + } split; + unsigned int full; +}; #endif /* X86_INTEL_ARCH_PERFMON_H */
diff --git a/include/asm-i386/io_apic.h b/include/asm-i386/io_apic.h index 5092e81..5d30927 100644 --- a/include/asm-i386/io_apic.h +++ b/include/asm-i386/io_apic.h
@@ -188,6 +188,16 @@ /* 1 if "noapic" boot option passed */ extern int skip_ioapic_setup; +static inline void disable_ioapic_setup(void) +{ + skip_ioapic_setup = 1; +} + +static inline int ioapic_setup_disabled(void) +{ + return skip_ioapic_setup; +} + /* * If we use the IO-APIC for IRQ routing, disable automatic * assignment of PCI IRQ's. @@ -206,6 +216,7 @@ #else /* !CONFIG_X86_IO_APIC */ #define io_apic_assign_pci_irqs 0 +static inline void disable_ioapic_setup(void) { } #endif extern int assign_irq_vector(int irq);
diff --git a/include/asm-i386/kexec.h b/include/asm-i386/kexec.h index 53f0e06..4dfc9f5 100644 --- a/include/asm-i386/kexec.h +++ b/include/asm-i386/kexec.h
@@ -1,6 +1,26 @@ #ifndef _I386_KEXEC_H #define _I386_KEXEC_H +#define PA_CONTROL_PAGE 0 +#define VA_CONTROL_PAGE 1 +#define PA_PGD 2 +#define VA_PGD 3 +#define PA_PTE_0 4 +#define VA_PTE_0 5 +#define PA_PTE_1 6 +#define VA_PTE_1 7 +#ifdef CONFIG_X86_PAE +#define PA_PMD_0 8 +#define VA_PMD_0 9 +#define PA_PMD_1 10 +#define VA_PMD_1 11 +#define PAGES_NR 12 +#else +#define PAGES_NR 8 +#endif + +#ifndef __ASSEMBLY__ + #include <asm/fixmap.h> #include <asm/ptrace.h> #include <asm/string.h> @@ -72,5 +92,12 @@ newregs->eip = (unsigned long)current_text_addr(); } } +asmlinkage NORET_TYPE void +relocate_kernel(unsigned long indirection_page, + unsigned long control_page, + unsigned long start_address, + unsigned int has_pae) ATTRIB_NORET; + +#endif /* __ASSEMBLY__ */ #endif /* _I386_KEXEC_H */
diff --git a/include/asm-i386/libata-portmap.h b/include/asm-i386/libata-portmap.h deleted file mode 100644 index 75484ef..0000000 --- a/include/asm-i386/libata-portmap.h +++ /dev/null
@@ -1 +0,0 @@ -#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-i386/mach-es7000/mach_apic.h b/include/asm-i386/mach-es7000/mach_apic.h index b5f3f0d..2633368 100644 --- a/include/asm-i386/mach-es7000/mach_apic.h +++ b/include/asm-i386/mach-es7000/mach_apic.h
@@ -123,9 +123,13 @@ /* Mapping from cpu number to logical apicid */ static inline int cpu_to_logical_apicid(int cpu) { +#ifdef CONFIG_SMP if (cpu >= NR_CPUS) return BAD_APICID; return (int)cpu_2_logical_apicid[cpu]; +#else + return logical_smp_processor_id(); +#endif } static inline int mpc_apic_id(struct mpc_config_processor *m, struct mpc_config_translation *unused)
diff --git a/include/asm-i386/mach-summit/mach_apic.h b/include/asm-i386/mach-summit/mach_apic.h index 9fd0732..a81b059 100644 --- a/include/asm-i386/mach-summit/mach_apic.h +++ b/include/asm-i386/mach-summit/mach_apic.h
@@ -46,10 +46,12 @@ static inline void init_apic_ldr(void) { unsigned long val, id; - int i, count; - u8 lid; + int count = 0; u8 my_id = (u8)hard_smp_processor_id(); u8 my_cluster = (u8)apicid_cluster(my_id); +#ifdef CONFIG_SMP + u8 lid; + int i; /* Create logical APIC IDs by counting CPUs already in cluster. */ for (count = 0, i = NR_CPUS; --i >= 0; ) { @@ -57,6 +59,7 @@ if (lid != BAD_APICID && apicid_cluster(lid) == my_cluster) ++count; } +#endif /* We only have a 4 wide bitmap in cluster mode. If a deranged * BIOS puts 5 CPUs in one APIC cluster, we're hosed. */ BUG_ON(count >= XAPIC_DEST_CPUS_SHIFT); @@ -91,9 +94,13 @@ /* Mapping from cpu number to logical apicid */ static inline int cpu_to_logical_apicid(int cpu) { +#ifdef CONFIG_SMP if (cpu >= NR_CPUS) return BAD_APICID; return (int)cpu_2_logical_apicid[cpu]; +#else + return logical_smp_processor_id(); +#endif } static inline int cpu_present_to_apicid(int mps_cpu)
diff --git a/include/asm-i386/mmzone.h b/include/asm-i386/mmzone.h index 22cb07c..61b0733 100644 --- a/include/asm-i386/mmzone.h +++ b/include/asm-i386/mmzone.h
@@ -38,10 +38,16 @@ } extern int early_pfn_to_nid(unsigned long pfn); +extern void numa_kva_reserve(void); #else /* !CONFIG_NUMA */ + #define get_memcfg_numa get_memcfg_numa_flat #define get_zholes_size(n) (0) + +static inline void numa_kva_reserve(void) +{ +} #endif /* CONFIG_NUMA */ #ifdef CONFIG_DISCONTIGMEM
diff --git a/include/asm-i386/mutex.h b/include/asm-i386/mutex.h index 05a5385..7a17d9e 100644 --- a/include/asm-i386/mutex.h +++ b/include/asm-i386/mutex.h
@@ -30,14 +30,10 @@ \ __asm__ __volatile__( \ LOCK_PREFIX " decl (%%eax) \n" \ - " js 2f \n" \ + " jns 1f \n" \ + " call "#fail_fn" \n" \ "1: \n" \ \ - LOCK_SECTION_START("") \ - "2: call "#fail_fn" \n" \ - " jmp 1b \n" \ - LOCK_SECTION_END \ - \ :"=a" (dummy) \ : "a" (count) \ : "memory", "ecx", "edx"); \ @@ -86,14 +82,10 @@ \ __asm__ __volatile__( \ LOCK_PREFIX " incl (%%eax) \n" \ - " jle 2f \n" \ + " jg 1f \n" \ + " call "#fail_fn" \n" \ "1: \n" \ \ - LOCK_SECTION_START("") \ - "2: call "#fail_fn" \n" \ - " jmp 1b \n" \ - LOCK_SECTION_END \ - \ :"=a" (dummy) \ : "a" (count) \ : "memory", "ecx", "edx"); \
diff --git a/include/asm-i386/nmi.h b/include/asm-i386/nmi.h index 67d9947..303bcd4 100644 --- a/include/asm-i386/nmi.h +++ b/include/asm-i386/nmi.h
@@ -6,32 +6,29 @@ #include <linux/pm.h> -struct pt_regs; - -typedef int (*nmi_callback_t)(struct pt_regs * regs, int cpu); - /** - * set_nmi_callback + * do_nmi_callback * - * Set a handler for an NMI. Only one handler may be - * set. Return 1 if the NMI was handled. + * Check to see if a callback exists and execute it. Return 1 + * if the handler exists and was handled successfully. */ -void set_nmi_callback(nmi_callback_t callback); +int do_nmi_callback(struct pt_regs *regs, int cpu); -/** - * unset_nmi_callback - * - * Remove the handler previously set. - */ -void unset_nmi_callback(void); +extern int nmi_watchdog_enabled; +extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); +extern int avail_to_resrv_perfctr_nmi(unsigned int); +extern int reserve_perfctr_nmi(unsigned int); +extern void release_perfctr_nmi(unsigned int); +extern int reserve_evntsel_nmi(unsigned int); +extern void release_evntsel_nmi(unsigned int); -extern void setup_apic_nmi_watchdog (void); -extern int reserve_lapic_nmi(void); -extern void release_lapic_nmi(void); +extern void setup_apic_nmi_watchdog (void *); +extern void stop_apic_nmi_watchdog (void *); extern void disable_timer_nmi_watchdog(void); extern void enable_timer_nmi_watchdog(void); -extern void nmi_watchdog_tick (struct pt_regs * regs); +extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); +extern atomic_t nmi_active; extern unsigned int nmi_watchdog; #define NMI_DEFAULT -1 #define NMI_NONE 0
diff --git a/include/asm-i386/pgtable-2level.h b/include/asm-i386/pgtable-2level.h index 2756d4b..201c86a 100644 --- a/include/asm-i386/pgtable-2level.h +++ b/include/asm-i386/pgtable-2level.h
@@ -21,8 +21,9 @@ #define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0) #define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) +#define __HAVE_ARCH_PTEP_GET_AND_CLEAR #define ptep_get_and_clear(mm,addr,xp) __pte(xchg(&(xp)->pte_low, 0)) -#define pte_same(a, b) ((a).pte_low == (b).pte_low) + #define pte_page(x) pfn_to_page(pte_pfn(x)) #define pte_none(x) (!(x).pte_low) #define pte_pfn(x) ((unsigned long)(((x).pte_low >> PAGE_SHIFT)))
diff --git a/include/asm-i386/pgtable-3level.h b/include/asm-i386/pgtable-3level.h index dccb1b3..0d89917 100644 --- a/include/asm-i386/pgtable-3level.h +++ b/include/asm-i386/pgtable-3level.h
@@ -77,7 +77,7 @@ #define pud_page(pud) \ ((struct page *) __va(pud_val(pud) & PAGE_MASK)) -#define pud_page_kernel(pud) \ +#define pud_page_vaddr(pud) \ ((unsigned long) __va(pud_val(pud) & PAGE_MASK)) @@ -105,6 +105,7 @@ *(tmp + 1) = 0; } +#define __HAVE_ARCH_PTEP_GET_AND_CLEAR static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { pte_t res; @@ -117,6 +118,7 @@ return res; } +#define __HAVE_ARCH_PTE_SAME static inline int pte_same(pte_t a, pte_t b) { return a.pte_low == b.pte_low && a.pte_high == b.pte_high;
diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h index 09697fe..541b3e2 100644 --- a/include/asm-i386/pgtable.h +++ b/include/asm-i386/pgtable.h
@@ -246,6 +246,23 @@ # include <asm/pgtable-2level.h> #endif +/* + * We only update the dirty/accessed state if we set + * the dirty bit by hand in the kernel, since the hardware + * will do the accessed bit for us, and we don't want to + * race with other CPU's that might be updating the dirty + * bit at the same time. + */ +#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS +#define ptep_set_access_flags(vma, address, ptep, entry, dirty) \ +do { \ + if (dirty) { \ + (ptep)->pte_low = (entry).pte_low; \ + flush_tlb_page(vma, address); \ + } \ +} while (0) + +#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY static inline int ptep_test_and_clear_dirty(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { if (!pte_dirty(*ptep)) @@ -253,6 +270,7 @@ return test_and_clear_bit(_PAGE_BIT_DIRTY, &ptep->pte_low); } +#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { if (!pte_young(*ptep)) @@ -260,6 +278,7 @@ return test_and_clear_bit(_PAGE_BIT_ACCESSED, &ptep->pte_low); } +#define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, unsigned long addr, pte_t *ptep, int full) { pte_t pte; @@ -272,6 +291,7 @@ return pte; } +#define __HAVE_ARCH_PTEP_SET_WRPROTECT static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { clear_bit(_PAGE_BIT_RW, &ptep->pte_low); @@ -364,11 +384,11 @@ #define pte_index(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir, address) \ - ((pte_t *) pmd_page_kernel(*(dir)) + pte_index(address)) + ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address)) #define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)) -#define pmd_page_kernel(pmd) \ +#define pmd_page_vaddr(pmd) \ ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) /* @@ -391,8 +411,6 @@ static inline int set_kernel_exec(unsigned long vaddr, int enable) { return 0;} #endif -extern void noexec_setup(const char *str); - #if defined(CONFIG_HIGHPTE) #define pte_offset_map(dir, address) \ ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE0) + pte_index(address)) @@ -411,23 +429,8 @@ /* * The i386 doesn't have any external MMU info: the kernel page * tables contain all the necessary information. - * - * Also, we only update the dirty/accessed state if we set - * the dirty bit by hand in the kernel, since the hardware - * will do the accessed bit for us, and we don't want to - * race with other CPU's that might be updating the dirty - * bit at the same time. */ #define update_mmu_cache(vma,address,pte) do { } while (0) -#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS -#define ptep_set_access_flags(__vma, __address, __ptep, __entry, __dirty) \ - do { \ - if (__dirty) { \ - (__ptep)->pte_low = (__entry).pte_low; \ - flush_tlb_page(__vma, __address); \ - } \ - } while (0) - #endif /* !__ASSEMBLY__ */ #ifdef CONFIG_FLATMEM @@ -441,12 +444,6 @@ #define GET_IOSPACE(pfn) 0 #define GET_PFN(pfn) (pfn) -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG -#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY -#define __HAVE_ARCH_PTEP_GET_AND_CLEAR -#define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL -#define __HAVE_ARCH_PTEP_SET_WRPROTECT -#define __HAVE_ARCH_PTE_SAME #include <asm-generic/pgtable.h> #endif /* _I386_PGTABLE_H */
diff --git a/include/asm-i386/processor.h b/include/asm-i386/processor.h index b32346d..2277127 100644 --- a/include/asm-i386/processor.h +++ b/include/asm-i386/processor.h
@@ -143,6 +143,18 @@ #define X86_EFLAGS_VIP 0x00100000 /* Virtual Interrupt Pending */ #define X86_EFLAGS_ID 0x00200000 /* CPUID detection flag */ +static inline void __cpuid(unsigned int *eax, unsigned int *ebx, + unsigned int *ecx, unsigned int *edx) +{ + /* ecx is often an input as well as an output. */ + __asm__("cpuid" + : "=a" (*eax), + "=b" (*ebx), + "=c" (*ecx), + "=d" (*edx) + : "0" (*eax), "2" (*ecx)); +} + /* * Generic CPUID function * clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx @@ -150,24 +162,18 @@ */ static inline void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx) { - __asm__("cpuid" - : "=a" (*eax), - "=b" (*ebx), - "=c" (*ecx), - "=d" (*edx) - : "0" (op), "c"(0)); + *eax = op; + *ecx = 0; + __cpuid(eax, ebx, ecx, edx); } /* Some CPUID calls want 'count' to be placed in ecx */ static inline void cpuid_count(int op, int count, int *eax, int *ebx, int *ecx, - int *edx) + int *edx) { - __asm__("cpuid" - : "=a" (*eax), - "=b" (*ebx), - "=c" (*ecx), - "=d" (*edx) - : "0" (op), "c" (count)); + *eax = op; + *ecx = count; + __cpuid(eax, ebx, ecx, edx); } /* @@ -175,42 +181,30 @@ */ static inline unsigned int cpuid_eax(unsigned int op) { - unsigned int eax; + unsigned int eax, ebx, ecx, edx; - __asm__("cpuid" - : "=a" (eax) - : "0" (op) - : "bx", "cx", "dx"); + cpuid(op, &eax, &ebx, &ecx, &edx); return eax; } static inline unsigned int cpuid_ebx(unsigned int op) { - unsigned int eax, ebx; + unsigned int eax, ebx, ecx, edx; - __asm__("cpuid" - : "=a" (eax), "=b" (ebx) - : "0" (op) - : "cx", "dx" ); + cpuid(op, &eax, &ebx, &ecx, &edx); return ebx; } static inline unsigned int cpuid_ecx(unsigned int op) { - unsigned int eax, ecx; + unsigned int eax, ebx, ecx, edx; - __asm__("cpuid" - : "=a" (eax), "=c" (ecx) - : "0" (op) - : "bx", "dx" ); + cpuid(op, &eax, &ebx, &ecx, &edx); return ecx; } static inline unsigned int cpuid_edx(unsigned int op) { - unsigned int eax, edx; + unsigned int eax, ebx, ecx, edx; - __asm__("cpuid" - : "=a" (eax), "=d" (edx) - : "0" (op) - : "bx", "cx"); + cpuid(op, &eax, &ebx, &ecx, &edx); return edx; }
diff --git a/include/asm-i386/ptrace-abi.h b/include/asm-i386/ptrace-abi.h new file mode 100644 index 0000000..a449018 --- /dev/null +++ b/include/asm-i386/ptrace-abi.h
@@ -0,0 +1,39 @@ +#ifndef I386_PTRACE_ABI_H +#define I386_PTRACE_ABI_H + +#define EBX 0 +#define ECX 1 +#define EDX 2 +#define ESI 3 +#define EDI 4 +#define EBP 5 +#define EAX 6 +#define DS 7 +#define ES 8 +#define FS 9 +#define GS 10 +#define ORIG_EAX 11 +#define EIP 12 +#define CS 13 +#define EFL 14 +#define UESP 15 +#define SS 16 +#define FRAME_SIZE 17 + +/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ +#define PTRACE_GETREGS 12 +#define PTRACE_SETREGS 13 +#define PTRACE_GETFPREGS 14 +#define PTRACE_SETFPREGS 15 +#define PTRACE_GETFPXREGS 18 +#define PTRACE_SETFPXREGS 19 + +#define PTRACE_OLDSETOPTIONS 21 + +#define PTRACE_GET_THREAD_AREA 25 +#define PTRACE_SET_THREAD_AREA 26 + +#define PTRACE_SYSEMU 31 +#define PTRACE_SYSEMU_SINGLESTEP 32 + +#endif
diff --git a/include/asm-i386/ptrace.h b/include/asm-i386/ptrace.h index f324c53..a4a0e52 100644 --- a/include/asm-i386/ptrace.h +++ b/include/asm-i386/ptrace.h
@@ -1,24 +1,7 @@ #ifndef _I386_PTRACE_H #define _I386_PTRACE_H -#define EBX 0 -#define ECX 1 -#define EDX 2 -#define ESI 3 -#define EDI 4 -#define EBP 5 -#define EAX 6 -#define DS 7 -#define ES 8 -#define FS 9 -#define GS 10 -#define ORIG_EAX 11 -#define EIP 12 -#define CS 13 -#define EFL 14 -#define UESP 15 -#define SS 16 -#define FRAME_SIZE 17 +#include <asm/ptrace-abi.h> /* this struct defines the way the registers are stored on the stack during a system call. */ @@ -41,25 +24,10 @@ int xss; }; -/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ -#define PTRACE_GETREGS 12 -#define PTRACE_SETREGS 13 -#define PTRACE_GETFPREGS 14 -#define PTRACE_SETFPREGS 15 -#define PTRACE_GETFPXREGS 18 -#define PTRACE_SETFPXREGS 19 - -#define PTRACE_OLDSETOPTIONS 21 - -#define PTRACE_GET_THREAD_AREA 25 -#define PTRACE_SET_THREAD_AREA 26 - -#define PTRACE_SYSEMU 31 -#define PTRACE_SYSEMU_SINGLESTEP 32 - #ifdef __KERNEL__ #include <asm/vm86.h> +#include <asm/segment.h> struct task_struct; extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code); @@ -73,18 +41,14 @@ */ static inline int user_mode(struct pt_regs *regs) { - return (regs->xcs & 3) != 0; + return (regs->xcs & SEGMENT_RPL_MASK) == USER_RPL; } static inline int user_mode_vm(struct pt_regs *regs) { - return ((regs->xcs & 3) | (regs->eflags & VM_MASK)) != 0; + return ((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= USER_RPL; } #define instruction_pointer(regs) ((regs)->eip) -#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER) extern unsigned long profile_pc(struct pt_regs *regs); -#else -#define profile_pc(regs) instruction_pointer(regs) -#endif #endif /* __KERNEL__ */ #endif
diff --git a/include/asm-i386/rwlock.h b/include/asm-i386/rwlock.h index 87c069c..c3e5db3 100644 --- a/include/asm-i386/rwlock.h +++ b/include/asm-i386/rwlock.h
@@ -20,52 +20,6 @@ #define RW_LOCK_BIAS 0x01000000 #define RW_LOCK_BIAS_STR "0x01000000" -#define __build_read_lock_ptr(rw, helper) \ - asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t" \ - "jns 1f\n" \ - "call " helper "\n\t" \ - "1:\n" \ - ::"a" (rw) : "memory") - -#define __build_read_lock_const(rw, helper) \ - asm volatile(LOCK_PREFIX " subl $1,%0\n\t" \ - "jns 1f\n" \ - "pushl %%eax\n\t" \ - "leal %0,%%eax\n\t" \ - "call " helper "\n\t" \ - "popl %%eax\n\t" \ - "1:\n" \ - :"+m" (*(volatile int *)rw) : : "memory") - -#define __build_read_lock(rw, helper) do { \ - if (__builtin_constant_p(rw)) \ - __build_read_lock_const(rw, helper); \ - else \ - __build_read_lock_ptr(rw, helper); \ - } while (0) - -#define __build_write_lock_ptr(rw, helper) \ - asm volatile(LOCK_PREFIX " subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \ - "jz 1f\n" \ - "call " helper "\n\t" \ - "1:\n" \ - ::"a" (rw) : "memory") - -#define __build_write_lock_const(rw, helper) \ - asm volatile(LOCK_PREFIX " subl $" RW_LOCK_BIAS_STR ",%0\n\t" \ - "jz 1f\n" \ - "pushl %%eax\n\t" \ - "leal %0,%%eax\n\t" \ - "call " helper "\n\t" \ - "popl %%eax\n\t" \ - "1:\n" \ - :"+m" (*(volatile int *)rw) : : "memory") - -#define __build_write_lock(rw, helper) do { \ - if (__builtin_constant_p(rw)) \ - __build_write_lock_const(rw, helper); \ - else \ - __build_write_lock_ptr(rw, helper); \ - } while (0) +/* Code is in asm-i386/spinlock.h */ #endif
diff --git a/include/asm-i386/rwsem.h b/include/asm-i386/rwsem.h index 43113f5..bc598d6 100644 --- a/include/asm-i386/rwsem.h +++ b/include/asm-i386/rwsem.h
@@ -99,17 +99,9 @@ __asm__ __volatile__( "# beginning down_read\n\t" LOCK_PREFIX " incl (%%eax)\n\t" /* adds 0x00000001, returns the old value */ - " js 2f\n\t" /* jump if we weren't granted the lock */ + " jns 1f\n" + " call call_rwsem_down_read_failed\n" "1:\n\t" - LOCK_SECTION_START("") - "2:\n\t" - " pushl %%ecx\n\t" - " pushl %%edx\n\t" - " call rwsem_down_read_failed\n\t" - " popl %%edx\n\t" - " popl %%ecx\n\t" - " jmp 1b\n" - LOCK_SECTION_END "# ending down_read\n\t" : "+m" (sem->count) : "a" (sem) @@ -151,15 +143,9 @@ "# beginning down_write\n\t" LOCK_PREFIX " xadd %%edx,(%%eax)\n\t" /* subtract 0x0000ffff, returns the old value */ " testl %%edx,%%edx\n\t" /* was the count 0 before? */ - " jnz 2f\n\t" /* jump if we weren't granted the lock */ - "1:\n\t" - LOCK_SECTION_START("") - "2:\n\t" - " pushl %%ecx\n\t" - " call rwsem_down_write_failed\n\t" - " popl %%ecx\n\t" - " jmp 1b\n" - LOCK_SECTION_END + " jz 1f\n" + " call call_rwsem_down_write_failed\n" + "1:\n" "# ending down_write" : "+m" (sem->count), "=d" (tmp) : "a" (sem), "1" (tmp) @@ -193,17 +179,9 @@ __asm__ __volatile__( "# beginning __up_read\n\t" LOCK_PREFIX " xadd %%edx,(%%eax)\n\t" /* subtracts 1, returns the old value */ - " js 2f\n\t" /* jump if the lock is being waited upon */ - "1:\n\t" - LOCK_SECTION_START("") - "2:\n\t" - " decw %%dx\n\t" /* do nothing if still outstanding active readers */ - " jnz 1b\n\t" - " pushl %%ecx\n\t" - " call rwsem_wake\n\t" - " popl %%ecx\n\t" - " jmp 1b\n" - LOCK_SECTION_END + " jns 1f\n\t" + " call call_rwsem_wake\n" + "1:\n" "# ending __up_read\n" : "+m" (sem->count), "=d" (tmp) : "a" (sem), "1" (tmp) @@ -219,17 +197,9 @@ "# beginning __up_write\n\t" " movl %2,%%edx\n\t" LOCK_PREFIX " xaddl %%edx,(%%eax)\n\t" /* tries to transition 0xffff0001 -> 0x00000000 */ - " jnz 2f\n\t" /* jump if the lock is being waited upon */ + " jz 1f\n" + " call call_rwsem_wake\n" "1:\n\t" - LOCK_SECTION_START("") - "2:\n\t" - " decw %%dx\n\t" /* did the active count reduce to 0? */ - " jnz 1b\n\t" /* jump back if not */ - " pushl %%ecx\n\t" - " call rwsem_wake\n\t" - " popl %%ecx\n\t" - " jmp 1b\n" - LOCK_SECTION_END "# ending __up_write\n" : "+m" (sem->count) : "a" (sem), "i" (-RWSEM_ACTIVE_WRITE_BIAS) @@ -244,17 +214,9 @@ __asm__ __volatile__( "# beginning __downgrade_write\n\t" LOCK_PREFIX " addl %2,(%%eax)\n\t" /* transitions 0xZZZZ0001 -> 0xYYYY0001 */ - " js 2f\n\t" /* jump if the lock is being waited upon */ + " jns 1f\n\t" + " call call_rwsem_downgrade_wake\n" "1:\n\t" - LOCK_SECTION_START("") - "2:\n\t" - " pushl %%ecx\n\t" - " pushl %%edx\n\t" - " call rwsem_downgrade_wake\n\t" - " popl %%edx\n\t" - " popl %%ecx\n\t" - " jmp 1b\n" - LOCK_SECTION_END "# ending __downgrade_write\n" : "+m" (sem->count) : "a" (sem), "i" (-RWSEM_WAITING_BIAS)
diff --git a/include/asm-i386/segment.h b/include/asm-i386/segment.h index faf9953..b7ab596 100644 --- a/include/asm-i386/segment.h +++ b/include/asm-i386/segment.h
@@ -83,6 +83,11 @@ #define GDT_SIZE (GDT_ENTRIES * 8) +/* Matches __KERNEL_CS and __USER_CS (they must be 2 entries apart) */ +#define SEGMENT_IS_FLAT_CODE(x) (((x) & 0xec) == GDT_ENTRY_KERNEL_CS * 8) +/* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */ +#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8) + /* Simple and small GDT entries for booting only */ #define GDT_ENTRY_BOOT_CS 2 @@ -112,4 +117,16 @@ */ #define IDT_ENTRIES 256 +/* Bottom two bits of selector give the ring privilege level */ +#define SEGMENT_RPL_MASK 0x3 +/* Bit 2 is table indicator (LDT/GDT) */ +#define SEGMENT_TI_MASK 0x4 + +/* User mode is privilege level 3 */ +#define USER_RPL 0x3 +/* LDT segment has TI set, GDT has it cleared */ +#define SEGMENT_LDT 0x4 +#define SEGMENT_GDT 0x0 + +#define get_kernel_rpl() 0 #endif
diff --git a/include/asm-i386/semaphore.h b/include/asm-i386/semaphore.h index d51e800..4e34a46 100644 --- a/include/asm-i386/semaphore.h +++ b/include/asm-i386/semaphore.h
@@ -100,13 +100,10 @@ __asm__ __volatile__( "# atomic down operation\n\t" LOCK_PREFIX "decl %0\n\t" /* --sem->count */ - "js 2f\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tlea %0,%%eax\n\t" - "call __down_failed\n\t" - "jmp 1b\n" - LOCK_SECTION_END + "jns 2f\n" + "\tlea %0,%%eax\n\t" + "call __down_failed\n" + "2:" :"+m" (sem->count) : :"memory","ax"); @@ -123,16 +120,13 @@ might_sleep(); __asm__ __volatile__( "# atomic interruptible down operation\n\t" + "xorl %0,%0\n\t" LOCK_PREFIX "decl %1\n\t" /* --sem->count */ - "js 2f\n\t" - "xorl %0,%0\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tlea %1,%%eax\n\t" - "call __down_failed_interruptible\n\t" - "jmp 1b\n" - LOCK_SECTION_END - :"=a" (result), "+m" (sem->count) + "jns 2f\n\t" + "lea %1,%%eax\n\t" + "call __down_failed_interruptible\n" + "2:" + :"=&a" (result), "+m" (sem->count) : :"memory"); return result; @@ -148,16 +142,13 @@ __asm__ __volatile__( "# atomic interruptible down operation\n\t" + "xorl %0,%0\n\t" LOCK_PREFIX "decl %1\n\t" /* --sem->count */ - "js 2f\n\t" - "xorl %0,%0\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tlea %1,%%eax\n\t" + "jns 2f\n\t" + "lea %1,%%eax\n\t" "call __down_failed_trylock\n\t" - "jmp 1b\n" - LOCK_SECTION_END - :"=a" (result), "+m" (sem->count) + "2:\n" + :"=&a" (result), "+m" (sem->count) : :"memory"); return result; @@ -166,22 +157,16 @@ /* * Note! This is subtle. We jump to wake people up only if * the semaphore was negative (== somebody was waiting on it). - * The default case (no contention) will result in NO - * jumps for both down() and up(). */ static inline void up(struct semaphore * sem) { __asm__ __volatile__( "# atomic up operation\n\t" LOCK_PREFIX "incl %0\n\t" /* ++sem->count */ - "jle 2f\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tlea %0,%%eax\n\t" - "call __up_wakeup\n\t" - "jmp 1b\n" - LOCK_SECTION_END - ".subsection 0\n" + "jg 1f\n\t" + "lea %0,%%eax\n\t" + "call __up_wakeup\n" + "1:" :"+m" (sem->count) : :"memory","ax");
diff --git a/include/asm-i386/smp.h b/include/asm-i386/smp.h index 142d10e..32ac8c9 100644 --- a/include/asm-i386/smp.h +++ b/include/asm-i386/smp.h
@@ -80,17 +80,12 @@ return GET_APIC_ID(*(unsigned long *)(APIC_BASE+APIC_ID)); } #endif - -static __inline int logical_smp_processor_id(void) -{ - /* we don't want to mark this access volatile - bad code generation */ - return GET_APIC_LOGICAL_ID(*(unsigned long *)(APIC_BASE+APIC_LDR)); -} - #endif extern int __cpu_disable(void); extern void __cpu_die(unsigned int cpu); +extern unsigned int num_processors; + #endif /* !__ASSEMBLY__ */ #else /* CONFIG_SMP */ @@ -100,4 +95,15 @@ #define NO_PROC_ID 0xFF /* No processor magic marker */ #endif + +#ifndef __ASSEMBLY__ +#ifdef CONFIG_X86_LOCAL_APIC +static __inline int logical_smp_processor_id(void) +{ + /* we don't want to mark this access volatile - bad code generation */ + return GET_APIC_LOGICAL_ID(*(unsigned long *)(APIC_BASE+APIC_LDR)); +} +#endif +#endif + #endif
diff --git a/include/asm-i386/spinlock.h b/include/asm-i386/spinlock.h index d102036..b0b3043 100644 --- a/include/asm-i386/spinlock.h +++ b/include/asm-i386/spinlock.h
@@ -4,8 +4,12 @@ #include <asm/atomic.h> #include <asm/rwlock.h> #include <asm/page.h> +#include <asm/processor.h> #include <linux/compiler.h> +#define CLI_STRING "cli" +#define STI_STRING "sti" + /* * Your basic SMP spinlocks, allowing only a single CPU anywhere * @@ -17,67 +21,64 @@ * (the type definitions are in asm/spinlock_types.h) */ -#define __raw_spin_is_locked(x) \ - (*(volatile signed char *)(&(x)->slock) <= 0) - -#define __raw_spin_lock_string \ - "\n1:\t" \ - LOCK_PREFIX " ; decb %0\n\t" \ - "jns 3f\n" \ - "2:\t" \ - "rep;nop\n\t" \ - "cmpb $0,%0\n\t" \ - "jle 2b\n\t" \ - "jmp 1b\n" \ - "3:\n\t" - -/* - * NOTE: there's an irqs-on section here, which normally would have to be - * irq-traced, but on CONFIG_TRACE_IRQFLAGS we never use - * __raw_spin_lock_string_flags(). - */ -#define __raw_spin_lock_string_flags \ - "\n1:\t" \ - LOCK_PREFIX " ; decb %0\n\t" \ - "jns 5f\n" \ - "2:\t" \ - "testl $0x200, %1\n\t" \ - "jz 4f\n\t" \ - "sti\n" \ - "3:\t" \ - "rep;nop\n\t" \ - "cmpb $0, %0\n\t" \ - "jle 3b\n\t" \ - "cli\n\t" \ - "jmp 1b\n" \ - "4:\t" \ - "rep;nop\n\t" \ - "cmpb $0, %0\n\t" \ - "jg 1b\n\t" \ - "jmp 4b\n" \ - "5:\n\t" +static inline int __raw_spin_is_locked(raw_spinlock_t *x) +{ + return *(volatile signed char *)(&(x)->slock) <= 0; +} static inline void __raw_spin_lock(raw_spinlock_t *lock) { - asm(__raw_spin_lock_string : "+m" (lock->slock) : : "memory"); + asm volatile("\n1:\t" + LOCK_PREFIX " ; decb %0\n\t" + "jns 3f\n" + "2:\t" + "rep;nop\n\t" + "cmpb $0,%0\n\t" + "jle 2b\n\t" + "jmp 1b\n" + "3:\n\t" + : "+m" (lock->slock) : : "memory"); } /* * It is easier for the lock validator if interrupts are not re-enabled * in the middle of a lock-acquire. This is a performance feature anyway * so we turn it off: + * + * NOTE: there's an irqs-on section here, which normally would have to be + * irq-traced, but on CONFIG_TRACE_IRQFLAGS we never use this variant. */ #ifndef CONFIG_PROVE_LOCKING static inline void __raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags) { - asm(__raw_spin_lock_string_flags : "+m" (lock->slock) : "r" (flags) : "memory"); + asm volatile( + "\n1:\t" + LOCK_PREFIX " ; decb %0\n\t" + "jns 5f\n" + "2:\t" + "testl $0x200, %1\n\t" + "jz 4f\n\t" + STI_STRING "\n" + "3:\t" + "rep;nop\n\t" + "cmpb $0, %0\n\t" + "jle 3b\n\t" + CLI_STRING "\n\t" + "jmp 1b\n" + "4:\t" + "rep;nop\n\t" + "cmpb $0, %0\n\t" + "jg 1b\n\t" + "jmp 4b\n" + "5:\n\t" + : "+m" (lock->slock) : "r" (flags) : "memory"); } #endif static inline int __raw_spin_trylock(raw_spinlock_t *lock) { char oldval; - __asm__ __volatile__( + asm volatile( "xchgb %b0,%1" :"=q" (oldval), "+m" (lock->slock) :"0" (0) : "memory"); @@ -93,38 +94,29 @@ #if !defined(CONFIG_X86_OOSTORE) && !defined(CONFIG_X86_PPRO_FENCE) -#define __raw_spin_unlock_string \ - "movb $1,%0" \ - :"+m" (lock->slock) : : "memory" - - static inline void __raw_spin_unlock(raw_spinlock_t *lock) { - __asm__ __volatile__( - __raw_spin_unlock_string - ); + asm volatile("movb $1,%0" : "+m" (lock->slock) :: "memory"); } #else -#define __raw_spin_unlock_string \ - "xchgb %b0, %1" \ - :"=q" (oldval), "+m" (lock->slock) \ - :"0" (oldval) : "memory" - static inline void __raw_spin_unlock(raw_spinlock_t *lock) { char oldval = 1; - __asm__ __volatile__( - __raw_spin_unlock_string - ); + asm volatile("xchgb %b0, %1" + : "=q" (oldval), "+m" (lock->slock) + : "0" (oldval) : "memory"); } #endif -#define __raw_spin_unlock_wait(lock) \ - do { while (__raw_spin_is_locked(lock)) cpu_relax(); } while (0) +static inline void __raw_spin_unlock_wait(raw_spinlock_t *lock) +{ + while (__raw_spin_is_locked(lock)) + cpu_relax(); +} /* * Read-write spinlocks, allowing multiple readers @@ -151,22 +143,36 @@ * read_can_lock - would read_trylock() succeed? * @lock: the rwlock in question. */ -#define __raw_read_can_lock(x) ((int)(x)->lock > 0) +static inline int __raw_read_can_lock(raw_rwlock_t *x) +{ + return (int)(x)->lock > 0; +} /** * write_can_lock - would write_trylock() succeed? * @lock: the rwlock in question. */ -#define __raw_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS) +static inline int __raw_write_can_lock(raw_rwlock_t *x) +{ + return (x)->lock == RW_LOCK_BIAS; +} static inline void __raw_read_lock(raw_rwlock_t *rw) { - __build_read_lock(rw, "__read_lock_failed"); + asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t" + "jns 1f\n" + "call __read_lock_failed\n\t" + "1:\n" + ::"a" (rw) : "memory"); } static inline void __raw_write_lock(raw_rwlock_t *rw) { - __build_write_lock(rw, "__write_lock_failed"); + asm volatile(LOCK_PREFIX " subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" + "jz 1f\n" + "call __write_lock_failed\n\t" + "1:\n" + ::"a" (rw) : "memory"); } static inline int __raw_read_trylock(raw_rwlock_t *lock)
diff --git a/include/asm-i386/stacktrace.h b/include/asm-i386/stacktrace.h new file mode 100644 index 0000000..7d1f6a5 --- /dev/null +++ b/include/asm-i386/stacktrace.h
@@ -0,0 +1 @@ +#include <asm-x86_64/stacktrace.h>
diff --git a/include/asm-i386/sync_bitops.h b/include/asm-i386/sync_bitops.h new file mode 100644 index 0000000..c94d51c --- /dev/null +++ b/include/asm-i386/sync_bitops.h
@@ -0,0 +1,156 @@ +#ifndef _I386_SYNC_BITOPS_H +#define _I386_SYNC_BITOPS_H + +/* + * Copyright 1992, Linus Torvalds. + */ + +/* + * These have to be done with inline assembly: that way the bit-setting + * is guaranteed to be atomic. All bit operations return 0 if the bit + * was cleared before the operation and != 0 if it was not. + * + * bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1). + */ + +#define ADDR (*(volatile long *) addr) + +/** + * sync_set_bit - Atomically set a bit in memory + * @nr: the bit to set + * @addr: the address to start counting from + * + * This function is atomic and may not be reordered. See __set_bit() + * if you do not require the atomic guarantees. + * + * Note: there are no guarantees that this function will not be reordered + * on non x86 architectures, so if you are writting portable code, + * make sure not to rely on its reordering guarantees. + * + * Note that @nr may be almost arbitrarily large; this function is not + * restricted to acting on a single-word quantity. + */ +static inline void sync_set_bit(int nr, volatile unsigned long * addr) +{ + __asm__ __volatile__("lock; btsl %1,%0" + :"+m" (ADDR) + :"Ir" (nr) + : "memory"); +} + +/** + * sync_clear_bit - Clears a bit in memory + * @nr: Bit to clear + * @addr: Address to start counting from + * + * sync_clear_bit() is atomic and may not be reordered. However, it does + * not contain a memory barrier, so if it is used for locking purposes, + * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit() + * in order to ensure changes are visible on other processors. + */ +static inline void sync_clear_bit(int nr, volatile unsigned long * addr) +{ + __asm__ __volatile__("lock; btrl %1,%0" + :"+m" (ADDR) + :"Ir" (nr) + : "memory"); +} + +/** + * sync_change_bit - Toggle a bit in memory + * @nr: Bit to change + * @addr: Address to start counting from + * + * change_bit() is atomic and may not be reordered. It may be + * reordered on other architectures than x86. + * Note that @nr may be almost arbitrarily large; this function is not + * restricted to acting on a single-word quantity. + */ +static inline void sync_change_bit(int nr, volatile unsigned long * addr) +{ + __asm__ __volatile__("lock; btcl %1,%0" + :"+m" (ADDR) + :"Ir" (nr) + : "memory"); +} + +/** + * sync_test_and_set_bit - Set a bit and return its old value + * @nr: Bit to set + * @addr: Address to count from + * + * This operation is atomic and cannot be reordered. + * It may be reordered on other architectures than x86. + * It also implies a memory barrier. + */ +static inline int sync_test_and_set_bit(int nr, volatile unsigned long * addr) +{ + int oldbit; + + __asm__ __volatile__("lock; btsl %2,%1\n\tsbbl %0,%0" + :"=r" (oldbit),"+m" (ADDR) + :"Ir" (nr) : "memory"); + return oldbit; +} + +/** + * sync_test_and_clear_bit - Clear a bit and return its old value + * @nr: Bit to clear + * @addr: Address to count from + * + * This operation is atomic and cannot be reordered. + * It can be reorderdered on other architectures other than x86. + * It also implies a memory barrier. + */ +static inline int sync_test_and_clear_bit(int nr, volatile unsigned long * addr) +{ + int oldbit; + + __asm__ __volatile__("lock; btrl %2,%1\n\tsbbl %0,%0" + :"=r" (oldbit),"+m" (ADDR) + :"Ir" (nr) : "memory"); + return oldbit; +} + +/** + * sync_test_and_change_bit - Change a bit and return its old value + * @nr: Bit to change + * @addr: Address to count from + * + * This operation is atomic and cannot be reordered. + * It also implies a memory barrier. + */ +static inline int sync_test_and_change_bit(int nr, volatile unsigned long* addr) +{ + int oldbit; + + __asm__ __volatile__("lock; btcl %2,%1\n\tsbbl %0,%0" + :"=r" (oldbit),"+m" (ADDR) + :"Ir" (nr) : "memory"); + return oldbit; +} + +static __always_inline int sync_const_test_bit(int nr, const volatile unsigned long *addr) +{ + return ((1UL << (nr & 31)) & + (((const volatile unsigned int *)addr)[nr >> 5])) != 0; +} + +static inline int sync_var_test_bit(int nr, const volatile unsigned long * addr) +{ + int oldbit; + + __asm__ __volatile__("btl %2,%1\n\tsbbl %0,%0" + :"=r" (oldbit) + :"m" (ADDR),"Ir" (nr)); + return oldbit; +} + +#define sync_test_bit(nr,addr) \ + (__builtin_constant_p(nr) ? \ + sync_constant_test_bit((nr),(addr)) : \ + sync_var_test_bit((nr),(addr))) + +#undef ADDR + +#endif /* _I386_SYNC_BITOPS_H */
diff --git a/include/asm-i386/system.h b/include/asm-i386/system.h index 098bcee..a6dabbc 100644 --- a/include/asm-i386/system.h +++ b/include/asm-i386/system.h
@@ -267,6 +267,9 @@ #define cmpxchg(ptr,o,n)\ ((__typeof__(*(ptr)))__cmpxchg((ptr),(unsigned long)(o),\ (unsigned long)(n),sizeof(*(ptr)))) +#define sync_cmpxchg(ptr,o,n)\ + ((__typeof__(*(ptr)))__sync_cmpxchg((ptr),(unsigned long)(o),\ + (unsigned long)(n),sizeof(*(ptr)))) #endif static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old, @@ -296,6 +299,39 @@ return old; } +/* + * Always use locked operations when touching memory shared with a + * hypervisor, since the system may be SMP even if the guest kernel + * isn't. + */ +static inline unsigned long __sync_cmpxchg(volatile void *ptr, + unsigned long old, + unsigned long new, int size) +{ + unsigned long prev; + switch (size) { + case 1: + __asm__ __volatile__("lock; cmpxchgb %b1,%2" + : "=a"(prev) + : "q"(new), "m"(*__xg(ptr)), "0"(old) + : "memory"); + return prev; + case 2: + __asm__ __volatile__("lock; cmpxchgw %w1,%2" + : "=a"(prev) + : "r"(new), "m"(*__xg(ptr)), "0"(old) + : "memory"); + return prev; + case 4: + __asm__ __volatile__("lock; cmpxchgl %1,%2" + : "=a"(prev) + : "r"(new), "m"(*__xg(ptr)), "0"(old) + : "memory"); + return prev; + } + return old; +} + #ifndef CONFIG_X86_CMPXCHG /* * Building a kernel capable running on 80386. It may be necessary to
diff --git a/include/asm-i386/therm_throt.h b/include/asm-i386/therm_throt.h new file mode 100644 index 0000000..399bf60 --- /dev/null +++ b/include/asm-i386/therm_throt.h
@@ -0,0 +1,9 @@ +#ifndef __ASM_I386_THERM_THROT_H__ +#define __ASM_I386_THERM_THROT_H__ 1 + +#include <asm/atomic.h> + +extern atomic_t therm_throt_en; +int therm_throt_process(int curr); + +#endif /* __ASM_I386_THERM_THROT_H__ */
diff --git a/include/asm-i386/tlbflush.h b/include/asm-i386/tlbflush.h index d57ca5c..360648b 100644 --- a/include/asm-i386/tlbflush.h +++ b/include/asm-i386/tlbflush.h
@@ -36,8 +36,6 @@ : "memory"); \ } while (0) -extern unsigned long pgkern_mask; - # define __flush_tlb_all() \ do { \ if (cpu_has_pge) \ @@ -49,7 +47,7 @@ #define cpu_has_invlpg (boot_cpu_data.x86 > 3) #define __flush_tlb_single(addr) \ - __asm__ __volatile__("invlpg %0": :"m" (*(char *) addr)) + __asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory") #ifdef CONFIG_X86_INVLPG # define __flush_tlb_one(addr) __flush_tlb_single(addr)
diff --git a/include/asm-i386/tsc.h b/include/asm-i386/tsc.h index 97b828c..c139331 100644 --- a/include/asm-i386/tsc.h +++ b/include/asm-i386/tsc.h
@@ -6,7 +6,6 @@ #ifndef _ASM_i386_TSC_H #define _ASM_i386_TSC_H -#include <linux/config.h> #include <asm/processor.h> /*
diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h index fc1c8dd..bd99870 100644 --- a/include/asm-i386/unistd.h +++ b/include/asm-i386/unistd.h
@@ -323,18 +323,20 @@ #define __NR_tee 315 #define __NR_vmsplice 316 #define __NR_move_pages 317 +#define __NR_getcpu 318 #ifdef __KERNEL__ -#define NR_syscalls 318 +#define NR_syscalls 319 +#include <linux/err.h> /* - * user-visible error numbers are in the range -1 - -128: see + * user-visible error numbers are in the range -1 - -MAX_ERRNO: see * <asm-i386/errno.h> */ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-(128 + 1))) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ errno = -(res); \ res = -1; \ } \
diff --git a/include/asm-i386/unwind.h b/include/asm-i386/unwind.h index 4c1a0b9..5031d69 100644 --- a/include/asm-i386/unwind.h +++ b/include/asm-i386/unwind.h
@@ -18,6 +18,7 @@ { struct pt_regs regs; struct task_struct *task; + unsigned call_frame:1; }; #define UNW_PC(frame) (frame)->regs.eip @@ -28,6 +29,8 @@ #define FRAME_LINK_OFFSET 0 #define STACK_BOTTOM(tsk) STACK_LIMIT((tsk)->thread.esp0) #define STACK_TOP(tsk) ((tsk)->thread.esp0) +#else +#define UNW_FP(frame) ((void)(frame), 0) #endif #define STACK_LIMIT(ptr) (((ptr) - 1) & ~(THREAD_SIZE - 1)) @@ -42,6 +45,10 @@ PTREGS_INFO(edi), \ PTREGS_INFO(eip) +#define UNW_DEFAULT_RA(raItem, dataAlign) \ + ((raItem).where == Memory && \ + !((raItem).value * (dataAlign) + 4)) + static inline void arch_unw_init_frame_info(struct unwind_frame_info *info, /*const*/ struct pt_regs *regs) { @@ -88,6 +95,7 @@ #define UNW_PC(frame) ((void)(frame), 0) #define UNW_SP(frame) ((void)(frame), 0) +#define UNW_FP(frame) ((void)(frame), 0) static inline int arch_unw_user_mode(const void *info) {
diff --git a/include/asm-ia64/esi.h b/include/asm-ia64/esi.h new file mode 100644 index 0000000..84aac0e --- /dev/null +++ b/include/asm-ia64/esi.h
@@ -0,0 +1,30 @@ +/* + * ESI service calls. + * + * Copyright (c) Copyright 2005-2006 Hewlett-Packard Development Company, L.P. + * Alex Williamson <alex.williamson@hp.com> + */ +#ifndef esi_h +#define esi_h + +#include <linux/efi.h> + +#define ESI_QUERY 0x00000001 +#define ESI_OPEN_HANDLE 0x02000000 +#define ESI_CLOSE_HANDLE 0x02000001 + +enum esi_proc_type { + ESI_PROC_SERIALIZED, /* calls need to be serialized */ + ESI_PROC_MP_SAFE, /* MP-safe, but not reentrant */ + ESI_PROC_REENTRANT /* MP-safe and reentrant */ +}; + +extern int ia64_esi_init (void); +extern struct ia64_sal_retval esi_call_phys (void *, u64 *); +extern int ia64_esi_call(efi_guid_t, struct ia64_sal_retval *, + enum esi_proc_type, + u64, u64, u64, u64, u64, u64, u64, u64); +extern int ia64_esi_call_phys(efi_guid_t, struct ia64_sal_retval *, u64, u64, + u64, u64, u64, u64, u64, u64); + +#endif /* esi_h */
diff --git a/include/asm-ia64/futex.h b/include/asm-ia64/futex.h index 6a332a9..07d77f3 100644 --- a/include/asm-ia64/futex.h +++ b/include/asm-ia64/futex.h
@@ -1,6 +1,124 @@ #ifndef _ASM_FUTEX_H #define _ASM_FUTEX_H -#include <asm-generic/futex.h> +#include <linux/futex.h> +#include <asm/errno.h> +#include <asm/system.h> +#include <asm/uaccess.h> -#endif +#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ +do { \ + register unsigned long r8 __asm ("r8") = 0; \ + __asm__ __volatile__( \ + " mf;; \n" \ + "[1:] " insn ";; \n" \ + " .xdata4 \"__ex_table\", 1b-., 2f-. \n" \ + "[2:]" \ + : "+r" (r8), "=r" (oldval) \ + : "r" (uaddr), "r" (oparg) \ + : "memory"); \ + ret = r8; \ +} while (0) + +#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \ +do { \ + register unsigned long r8 __asm ("r8") = 0; \ + int val, newval; \ + do { \ + __asm__ __volatile__( \ + " mf;; \n" \ + "[1:] ld4 %3=[%4];; \n" \ + " mov %2=%3 \n" \ + insn ";; \n" \ + " mov ar.ccv=%2;; \n" \ + "[2:] cmpxchg4.acq %1=[%4],%3,ar.ccv;; \n" \ + " .xdata4 \"__ex_table\", 1b-., 3f-.\n" \ + " .xdata4 \"__ex_table\", 2b-., 3f-.\n" \ + "[3:]" \ + : "+r" (r8), "=r" (val), "=&r" (oldval), \ + "=&r" (newval) \ + : "r" (uaddr), "r" (oparg) \ + : "memory"); \ + if (unlikely (r8)) \ + break; \ + } while (unlikely (val != oldval)); \ + ret = r8; \ +} while (0) + +static inline int +futex_atomic_op_inuser (int encoded_op, int __user *uaddr) +{ + int op = (encoded_op >> 28) & 7; + int cmp = (encoded_op >> 24) & 15; + int oparg = (encoded_op << 8) >> 20; + int cmparg = (encoded_op << 20) >> 20; + int oldval = 0, ret; + if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) + oparg = 1 << oparg; + + if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int))) + return -EFAULT; + + inc_preempt_count(); + + switch (op) { + case FUTEX_OP_SET: + __futex_atomic_op1("xchg4 %1=[%2],%3", ret, oldval, uaddr, + oparg); + break; + case FUTEX_OP_ADD: + __futex_atomic_op2("add %3=%3,%5", ret, oldval, uaddr, oparg); + break; + case FUTEX_OP_OR: + __futex_atomic_op2("or %3=%3,%5", ret, oldval, uaddr, oparg); + break; + case FUTEX_OP_ANDN: + __futex_atomic_op2("and %3=%3,%5", ret, oldval, uaddr, + ~oparg); + break; + case FUTEX_OP_XOR: + __futex_atomic_op2("xor %3=%3,%5", ret, oldval, uaddr, oparg); + break; + default: + ret = -ENOSYS; + } + + dec_preempt_count(); + + if (!ret) { + switch (cmp) { + case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break; + case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break; + case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break; + case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break; + case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break; + case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break; + default: ret = -ENOSYS; + } + } + return ret; +} + +static inline int +futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) +{ + if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) + return -EFAULT; + + { + register unsigned long r8 __asm ("r8"); + __asm__ __volatile__( + " mf;; \n" + " mov ar.ccv=%3;; \n" + "[1:] cmpxchg4.acq %0=[%1],%2,ar.ccv \n" + " .xdata4 \"__ex_table\", 1b-., 2f-. \n" + "[2:]" + : "=r" (r8) + : "r" (uaddr), "r" (newval), + "rO" ((long) (unsigned) oldval) + : "memory"); + return r8; + } +} + +#endif /* _ASM_FUTEX_H */
diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h index 9389049..1b45b71 100644 --- a/include/asm-ia64/kprobes.h +++ b/include/asm-ia64/kprobes.h
@@ -29,7 +29,8 @@ #include <linux/percpu.h> #include <asm/break.h> -#define MAX_INSN_SIZE 16 +#define __ARCH_WANT_KPROBES_INSN_SLOT +#define MAX_INSN_SIZE 1 #define BREAK_INST (long)(__IA64_BREAK_KPROBE << 6) typedef union cmp_inst { @@ -94,7 +95,7 @@ #define IP_RELATIVE_PREDICT_OPCODE (7) #define LONG_BRANCH_OPCODE (0xC) #define LONG_CALL_OPCODE (0xD) -#define arch_remove_kprobe(p) do {} while (0) +#define flush_insn_slot(p) do { } while (0) typedef struct kprobe_opcode { bundle_t bundle; @@ -108,7 +109,7 @@ /* Architecture specific copy of original instruction*/ struct arch_specific_insn { /* copy of the instruction to be emulated */ - kprobe_opcode_t insn; + kprobe_opcode_t *insn; #define INST_FLAG_FIX_RELATIVE_IP_ADDR 1 #define INST_FLAG_FIX_BRANCH_REG 2 #define INST_FLAG_BREAK_INST 4 @@ -125,6 +126,6 @@ } extern void invalidate_stacked_regs(void); extern void flush_register_stack(void); -extern void flush_insn_slot(struct kprobe *p); +extern void arch_remove_kprobe(struct kprobe *p); #endif /* _ASM_KPROBES_H */
diff --git a/include/asm-ia64/libata-portmap.h b/include/asm-ia64/libata-portmap.h deleted file mode 100644 index 75484ef..0000000 --- a/include/asm-ia64/libata-portmap.h +++ /dev/null
@@ -1 +0,0 @@ -#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-ia64/mca_asm.h b/include/asm-ia64/mca_asm.h index 27c9203..76203f9 100644 --- a/include/asm-ia64/mca_asm.h +++ b/include/asm-ia64/mca_asm.h
@@ -197,9 +197,9 @@ movl temp2 = start_addr; \ ;; \ mov cr.iip = temp2; \ + movl gp = __gp \ ;; \ DATA_PA_TO_VA(sp, temp1); \ - DATA_PA_TO_VA(gp, temp2); \ srlz.i; \ ;; \ nop 1; \
diff --git a/include/asm-ia64/meminit.h b/include/asm-ia64/meminit.h index 6a33a07..c3b1f86 100644 --- a/include/asm-ia64/meminit.h +++ b/include/asm-ia64/meminit.h
@@ -55,6 +55,7 @@ extern unsigned long vmalloc_end; extern struct page *vmem_map; extern int find_largest_hole (u64 start, u64 end, void *arg); + extern int register_active_ranges (u64 start, u64 end, void *arg); extern int create_mem_map_page_table (u64 start, u64 end, void *arg); extern int vmemmap_find_next_valid_pfn(int, int); #else
diff --git a/include/asm-ia64/module.h b/include/asm-ia64/module.h index 85c82bd..d2da61e 100644 --- a/include/asm-ia64/module.h +++ b/include/asm-ia64/module.h
@@ -28,7 +28,8 @@ #define Elf_Ehdr Elf64_Ehdr #define MODULE_PROC_FAMILY "ia64" -#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY +#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY \ + "gcc-" __stringify(__GNUC__) "." __stringify(__GNUC_MINOR__) #define ARCH_SHF_SMALL SHF_IA_64_SHORT
diff --git a/include/asm-ia64/numa.h b/include/asm-ia64/numa.h index e5a8260..7d5e2cc 100644 --- a/include/asm-ia64/numa.h +++ b/include/asm-ia64/numa.h
@@ -64,7 +64,13 @@ #define local_nodeid (cpu_to_node_map[smp_processor_id()]) +extern void map_cpu_to_node(int cpu, int nid); +extern void unmap_cpu_from_node(int cpu, int nid); + + #else /* !CONFIG_NUMA */ +#define map_cpu_to_node(cpu, nid) do{}while(0) +#define unmap_cpu_from_node(cpu, nid) do{}while(0) #define paddr_to_nid(addr) 0
diff --git a/include/asm-ia64/pal.h b/include/asm-ia64/pal.h index 20a8d61..2c8fd92 100644 --- a/include/asm-ia64/pal.h +++ b/include/asm-ia64/pal.h
@@ -78,6 +78,7 @@ #define PAL_VM_TR_READ 261 /* read contents of translation register */ #define PAL_GET_PSTATE 262 /* get the current P-state */ #define PAL_SET_PSTATE 263 /* set the P-state */ +#define PAL_BRAND_INFO 274 /* Processor branding information */ #ifndef __ASSEMBLY__ @@ -963,7 +964,8 @@ ia64_pal_cache_read (pal_cache_line_id_u_t line_id, u64 physical_addr) { struct ia64_pal_retval iprv; - PAL_CALL(iprv, PAL_CACHE_READ, line_id.pclid_data, physical_addr, 0); + PAL_CALL_PHYS_STK(iprv, PAL_CACHE_READ, line_id.pclid_data, + physical_addr, 0); return iprv.status; } @@ -985,7 +987,8 @@ ia64_pal_cache_write (pal_cache_line_id_u_t line_id, u64 physical_addr, u64 data) { struct ia64_pal_retval iprv; - PAL_CALL(iprv, PAL_CACHE_WRITE, line_id.pclid_data, physical_addr, data); + PAL_CALL_PHYS_STK(iprv, PAL_CACHE_WRITE, line_id.pclid_data, + physical_addr, data); return iprv.status; } @@ -1133,6 +1136,15 @@ return iprv.status; } +/* Processor branding information*/ +static inline s64 +ia64_pal_get_brand_info (char *brand_info) +{ + struct ia64_pal_retval iprv; + PAL_CALL_STK(iprv, PAL_BRAND_INFO, 0, (u64)brand_info, 0); + return iprv.status; +} + /* Cause the processor to enter LIGHT HALT state, where prefetching and execution are * suspended, but cache and TLB coherency is maintained. */
diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h index 228981c..5531827 100644 --- a/include/asm-ia64/pgtable.h +++ b/include/asm-ia64/pgtable.h
@@ -275,21 +275,23 @@ #define pmd_bad(pmd) (!ia64_phys_addr_valid(pmd_val(pmd))) #define pmd_present(pmd) (pmd_val(pmd) != 0UL) #define pmd_clear(pmdp) (pmd_val(*(pmdp)) = 0UL) -#define pmd_page_kernel(pmd) ((unsigned long) __va(pmd_val(pmd) & _PFN_MASK)) +#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & _PFN_MASK)) #define pmd_page(pmd) virt_to_page((pmd_val(pmd) + PAGE_OFFSET)) #define pud_none(pud) (!pud_val(pud)) #define pud_bad(pud) (!ia64_phys_addr_valid(pud_val(pud))) #define pud_present(pud) (pud_val(pud) != 0UL) #define pud_clear(pudp) (pud_val(*(pudp)) = 0UL) -#define pud_page(pud) ((unsigned long) __va(pud_val(pud) & _PFN_MASK)) +#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & _PFN_MASK)) +#define pud_page(pud) virt_to_page((pud_val(pud) + PAGE_OFFSET)) #ifdef CONFIG_PGTABLE_4 #define pgd_none(pgd) (!pgd_val(pgd)) #define pgd_bad(pgd) (!ia64_phys_addr_valid(pgd_val(pgd))) #define pgd_present(pgd) (pgd_val(pgd) != 0UL) #define pgd_clear(pgdp) (pgd_val(*(pgdp)) = 0UL) -#define pgd_page(pgd) ((unsigned long) __va(pgd_val(pgd) & _PFN_MASK)) +#define pgd_page_vaddr(pgd) ((unsigned long) __va(pgd_val(pgd) & _PFN_MASK)) +#define pgd_page(pgd) virt_to_page((pgd_val(pgd) + PAGE_OFFSET)) #endif /* @@ -360,19 +362,19 @@ #ifdef CONFIG_PGTABLE_4 /* Find an entry in the second-level page table.. */ #define pud_offset(dir,addr) \ - ((pud_t *) pgd_page(*(dir)) + (((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1))) + ((pud_t *) pgd_page_vaddr(*(dir)) + (((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1))) #endif /* Find an entry in the third-level page table.. */ #define pmd_offset(dir,addr) \ - ((pmd_t *) pud_page(*(dir)) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))) + ((pmd_t *) pud_page_vaddr(*(dir)) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))) /* * Find an entry in the third-level page table. This looks more complicated than it * should be because some platforms place page tables in high memory. */ #define pte_index(addr) (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) -#define pte_offset_kernel(dir,addr) ((pte_t *) pmd_page_kernel(*(dir)) + pte_index(addr)) +#define pte_offset_kernel(dir,addr) ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(addr)) #define pte_offset_map(dir,addr) pte_offset_kernel(dir, addr) #define pte_offset_map_nested(dir,addr) pte_offset_map(dir, addr) #define pte_unmap(pte) do { } while (0)
diff --git a/include/asm-ia64/processor.h b/include/asm-ia64/processor.h index 265f482..5830d36 100644 --- a/include/asm-ia64/processor.h +++ b/include/asm-ia64/processor.h
@@ -20,12 +20,6 @@ #include <asm/ustack.h> #define IA64_NUM_DBG_REGS 8 -/* - * Limits for PMC and PMD are set to less than maximum architected values - * but should be sufficient for a while - */ -#define IA64_NUM_PMC_REGS 64 -#define IA64_NUM_PMD_REGS 64 #define DEFAULT_MAP_BASE __IA64_UL_CONST(0x2000000000000000) #define DEFAULT_TASK_SIZE __IA64_UL_CONST(0xa000000000000000) @@ -163,6 +157,7 @@ __u8 family; __u8 archrev; char vendor[16]; + char *model_name; #ifdef CONFIG_NUMA struct ia64_node_data *node_data; @@ -262,13 +257,9 @@ # define INIT_THREAD_IA32 #endif /* CONFIG_IA32_SUPPORT */ #ifdef CONFIG_PERFMON - __u64 pmcs[IA64_NUM_PMC_REGS]; - __u64 pmds[IA64_NUM_PMD_REGS]; void *pfm_context; /* pointer to detailed PMU context */ unsigned long pfm_needs_checking; /* when >0, pending perfmon work on kernel exit */ -# define INIT_THREAD_PM .pmcs = {0UL, }, \ - .pmds = {0UL, }, \ - .pfm_context = NULL, \ +# define INIT_THREAD_PM .pfm_context = NULL, \ .pfm_needs_checking = 0UL, #else # define INIT_THREAD_PM
diff --git a/include/asm-ia64/smp.h b/include/asm-ia64/smp.h index 719ff30..60fd4ae 100644 --- a/include/asm-ia64/smp.h +++ b/include/asm-ia64/smp.h
@@ -122,12 +122,11 @@ extern void __init init_smp_config (void); extern void smp_do_timer (struct pt_regs *regs); -extern int smp_call_function_single (int cpuid, void (*func) (void *info), void *info, - int retry, int wait); extern void smp_send_reschedule (int cpu); extern void lock_ipi_calllock(void); extern void unlock_ipi_calllock(void); extern void identify_siblings (struct cpuinfo_ia64 *); +extern int is_multithreading_enabled(void); #else
diff --git a/include/asm-ia64/unistd.h b/include/asm-ia64/unistd.h index f581662..bb0eb72 100644 --- a/include/asm-ia64/unistd.h +++ b/include/asm-ia64/unistd.h
@@ -286,7 +286,8 @@ /* 1294, 1295 reserved for pselect/ppoll */ #define __NR_unshare 1296 #define __NR_splice 1297 -/* 1298, 1299 reserved for set_robust_list/get_robust_list */ +#define __NR_set_robust_list 1298 +#define __NR_get_robust_list 1299 #define __NR_sync_file_range 1300 #define __NR_tee 1301 #define __NR_vmsplice 1302
diff --git a/include/asm-m32r/pgtable-2level.h b/include/asm-m32r/pgtable-2level.h index be0f167e..6a674e3 100644 --- a/include/asm-m32r/pgtable-2level.h +++ b/include/asm-m32r/pgtable-2level.h
@@ -52,9 +52,13 @@ #define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) #define set_pgd(pgdptr, pgdval) (*(pgdptr) = pgdval) -#define pgd_page(pgd) \ +#define pgd_page_vaddr(pgd) \ ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK)) +#ifndef CONFIG_DISCONTIGMEM +#define pgd_page(pgd) (mem_map + ((pgd_val(pgd) >> PAGE_SHIFT) - PFN_BASE)) +#endif /* !CONFIG_DISCONTIGMEM */ + static inline pmd_t *pmd_offset(pgd_t * dir, unsigned long address) { return (pmd_t *) dir;
diff --git a/include/asm-m32r/pgtable.h b/include/asm-m32r/pgtable.h index 1983b7f..1c15ba7 100644 --- a/include/asm-m32r/pgtable.h +++ b/include/asm-m32r/pgtable.h
@@ -336,7 +336,7 @@ pmd_val(*pmdp) = (((unsigned long) ptep) & PAGE_MASK); } -#define pmd_page_kernel(pmd) \ +#define pmd_page_vaddr(pmd) \ ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) #ifndef CONFIG_DISCONTIGMEM @@ -358,7 +358,7 @@ #define pte_index(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir, address) \ - ((pte_t *)pmd_page_kernel(*(dir)) + pte_index(address)) + ((pte_t *)pmd_page_vaddr(*(dir)) + pte_index(address)) #define pte_offset_map(dir, address) \ ((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address)) #define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
diff --git a/include/asm-m32r/spinlock.h b/include/asm-m32r/spinlock.h index f94c1a6..f9f9072 100644 --- a/include/asm-m32r/spinlock.h +++ b/include/asm-m32r/spinlock.h
@@ -298,7 +298,14 @@ ); } -#define __raw_read_trylock(lock) generic__raw_read_trylock(lock) +static inline int __raw_read_trylock(raw_rwlock_t *lock) +{ + atomic_t *count = (atomic_t*)lock; + if (atomic_dec_return(count) >= 0) + return 1; + atomic_inc(count); + return 0; +} static inline int __raw_write_trylock(raw_rwlock_t *lock) {
diff --git a/include/asm-m32r/system.h b/include/asm-m32r/system.h index 9e618af..4ce0619 100644 --- a/include/asm-m32r/system.h +++ b/include/asm-m32r/system.h
@@ -328,15 +328,15 @@ #define smp_rmb() rmb() #define smp_wmb() wmb() #define smp_read_barrier_depends() read_barrier_depends() +#define set_mb(var, value) do { (void) xchg(&var, value); } while (0) #else #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() #define smp_read_barrier_depends() do { } while (0) +#define set_mb(var, value) do { var = value; barrier(); } while (0) #endif -#define set_mb(var, value) do { xchg(&var, value); } while (0) - #define arch_align_stack(x) (x) #endif /* _ASM_M32R_SYSTEM_H */
diff --git a/include/asm-m32r/unistd.h b/include/asm-m32r/unistd.h index 89f376e..5c6a9ac 100644 --- a/include/asm-m32r/unistd.h +++ b/include/asm-m32r/unistd.h
@@ -296,8 +296,9 @@ #ifdef __KERNEL__ #define NR_syscalls 285 +#include <linux/err.h> -/* user-visible error numbers are in the range -1 - -124: see +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: see * <asm-m32r/errno.h> */ @@ -305,7 +306,7 @@ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-(124 + 1))) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ /* Avoid using "res" which is declared to be in register r0; \ errno might expand to a function call and clobber it. */ \ int __err = -(res); \
diff --git a/include/asm-m68k/motorola_pgtable.h b/include/asm-m68k/motorola_pgtable.h index 1ccc733..61e4406 100644 --- a/include/asm-m68k/motorola_pgtable.h +++ b/include/asm-m68k/motorola_pgtable.h
@@ -150,6 +150,7 @@ #define pgd_bad(pgd) ((pgd_val(pgd) & _DESCTYPE_MASK) != _PAGE_TABLE) #define pgd_present(pgd) (pgd_val(pgd) & _PAGE_TABLE) #define pgd_clear(pgdp) ({ pgd_val(*pgdp) = 0; }) +#define pgd_page(pgd) (mem_map + ((unsigned long)(__va(pgd_val(pgd)) - PAGE_OFFSET) >> PAGE_SHIFT)) #define pte_ERROR(e) \ printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
diff --git a/include/asm-m68k/unistd.h b/include/asm-m68k/unistd.h index 7c0b629..751632b 100644 --- a/include/asm-m68k/unistd.h +++ b/include/asm-m68k/unistd.h
@@ -288,13 +288,14 @@ #ifdef __KERNEL__ #define NR_syscalls 282 +#include <linux/err.h> -/* user-visible error numbers are in the range -1 - -124: see +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: see <asm-m68k/errno.h> */ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ /* avoid using res which is declared to be in register d0; \ errno might expand to a function call and clobber it. */ \ int __err = -(res); \
diff --git a/include/asm-m68knommu/unistd.h b/include/asm-m68knommu/unistd.h index 1b2abdf..21fdc37 100644 --- a/include/asm-m68knommu/unistd.h +++ b/include/asm-m68knommu/unistd.h
@@ -289,13 +289,14 @@ #ifdef __KERNEL__ #define NR_syscalls 282 +#include <linux/err.h> -/* user-visible error numbers are in the range -1 - -122: see +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: see <asm-m68k/errno.h> */ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ /* avoid using res which is declared to be in register d0; \ errno might expand to a function call and clobber it. */ \ int __err = -(res); \
diff --git a/include/asm-mips/Kbuild b/include/asm-mips/Kbuild index c68e168..7897f05 100644 --- a/include/asm-mips/Kbuild +++ b/include/asm-mips/Kbuild
@@ -1 +1,3 @@ include include/asm-generic/Kbuild.asm + +header-y += cachectl.h sgidefs.h sysmips.h
diff --git a/include/asm-mips/bootinfo.h b/include/asm-mips/bootinfo.h index 3b745e7..78c35ec 100644 --- a/include/asm-mips/bootinfo.h +++ b/include/asm-mips/bootinfo.h
@@ -112,8 +112,7 @@ * Valid machtype for group GALILEO */ #define MACH_GROUP_GALILEO 11 /* Galileo Eval Boards */ -#define MACH_EV96100 0 /* EV96100 */ -#define MACH_EV64120A 1 /* EV64120A */ +#define MACH_EV64120A 0 /* EV64120A */ /* * Valid machtype for group MOMENCO
diff --git a/include/asm-mips/cacheflush.h b/include/asm-mips/cacheflush.h index 47bc8f6..36416fd 100644 --- a/include/asm-mips/cacheflush.h +++ b/include/asm-mips/cacheflush.h
@@ -21,7 +21,6 @@ * - flush_cache_range(vma, start, end) flushes a range of pages * - flush_icache_range(start, end) flush a range of instructions * - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache - * - flush_icache_page(vma, pg) flushes(invalidates) a page for icache * * MIPS specific flush operations: * @@ -39,7 +38,7 @@ static inline void flush_dcache_page(struct page *page) { - if (cpu_has_dc_aliases) + if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc) __flush_dcache_page(page); } @@ -47,8 +46,13 @@ #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) -extern void (*flush_icache_page)(struct vm_area_struct *vma, +extern void (*__flush_icache_page)(struct vm_area_struct *vma, struct page *page); +static inline void flush_icache_page(struct vm_area_struct *vma, + struct page *page) +{ +} + extern void (*flush_icache_range)(unsigned long start, unsigned long end); #define flush_cache_vmap(start, end) flush_cache_all() #define flush_cache_vunmap(start, end) flush_cache_all() @@ -60,7 +64,7 @@ if (cpu_has_dc_aliases) flush_cache_page(vma, vaddr, page_to_pfn(page)); memcpy(dst, src, len); - flush_icache_page(vma, page); + __flush_icache_page(vma, page); } static inline void copy_from_user_page(struct vm_area_struct *vma,
diff --git a/include/asm-mips/fcntl.h b/include/asm-mips/fcntl.h index 787220e..00a50ec 100644 --- a/include/asm-mips/fcntl.h +++ b/include/asm-mips/fcntl.h
@@ -25,8 +25,6 @@ #define F_SETOWN 24 /* for sockets. */ #define F_GETOWN 23 /* for sockets. */ -#define F_SETSIG 10 /* for sockets. */ -#define F_GETSIG 11 /* for sockets. */ #ifndef __mips64 #define F_GETLK64 33 /* using 'struct flock64' */
diff --git a/include/asm-mips/galileo-boards/gt96100.h b/include/asm-mips/galileo-boards/gt96100.h deleted file mode 100644 index aabd1b6..0000000 --- a/include/asm-mips/galileo-boards/gt96100.h +++ /dev/null
@@ -1,427 +0,0 @@ -/* - * Copyright 2000 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * stevel@mvista.com or source@mvista.com - * - * This program is free software; you can distribute it and/or modify it - * under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * Register offsets of the MIPS GT96100 Advanced Communication Controller. - */ -#ifndef _GT96100_H -#define _GT96100_H - -/* - * Galileo GT96100 internal register base. - */ -#define MIPS_GT96100_BASE (KSEG1ADDR(0x14000000)) - -#define GT96100_WRITE(ofs, data) \ - *(volatile u32 *)(MIPS_GT96100_BASE+ofs) = cpu_to_le32(data) -#define GT96100_READ(ofs) \ - le32_to_cpu(*(volatile u32 *)(MIPS_GT96100_BASE+ofs)) - -#define GT96100_ETH_IO_SIZE 0x4000 - -/************************************************************************ - * Register offset addresses follow - ************************************************************************/ - -/* CPU Interface Control Registers */ -#define GT96100_CPU_INTERF_CONFIG 0x000000 - -/* Ethernet Ports */ -#define GT96100_ETH_PHY_ADDR_REG 0x080800 -#define GT96100_ETH_SMI_REG 0x080810 -/* - These are offsets to port 0 registers. Add GT96100_ETH_IO_SIZE to - get offsets to port 1 registers. -*/ -#define GT96100_ETH_PORT_CONFIG 0x084800 -#define GT96100_ETH_PORT_CONFIG_EXT 0x084808 -#define GT96100_ETH_PORT_COMM 0x084810 -#define GT96100_ETH_PORT_STATUS 0x084818 -#define GT96100_ETH_SER_PARAM 0x084820 -#define GT96100_ETH_HASH_TBL_PTR 0x084828 -#define GT96100_ETH_FLOW_CNTRL_SRC_ADDR_L 0x084830 -#define GT96100_ETH_FLOW_CNTRL_SRC_ADDR_H 0x084838 -#define GT96100_ETH_SDMA_CONFIG 0x084840 -#define GT96100_ETH_SDMA_COMM 0x084848 -#define GT96100_ETH_INT_CAUSE 0x084850 -#define GT96100_ETH_INT_MASK 0x084858 -#define GT96100_ETH_1ST_RX_DESC_PTR0 0x084880 -#define GT96100_ETH_1ST_RX_DESC_PTR1 0x084884 -#define GT96100_ETH_1ST_RX_DESC_PTR2 0x084888 -#define GT96100_ETH_1ST_RX_DESC_PTR3 0x08488C -#define GT96100_ETH_CURR_RX_DESC_PTR0 0x0848A0 -#define GT96100_ETH_CURR_RX_DESC_PTR1 0x0848A4 -#define GT96100_ETH_CURR_RX_DESC_PTR2 0x0848A8 -#define GT96100_ETH_CURR_RX_DESC_PTR3 0x0848AC -#define GT96100_ETH_CURR_TX_DESC_PTR0 0x0848E0 -#define GT96100_ETH_CURR_TX_DESC_PTR1 0x0848E4 -#define GT96100_ETH_MIB_COUNT_BASE 0x085800 - -/* SDMAs */ -#define GT96100_SDMA_GROUP_CONFIG 0x101AF0 -/* SDMA Group 0 */ -#define GT96100_SDMA_G0_CHAN0_CONFIG 0x000900 -#define GT96100_SDMA_G0_CHAN0_COMM 0x000908 -#define GT96100_SDMA_G0_CHAN0_RX_DESC_BASE 0x008900 -#define GT96100_SDMA_G0_CHAN0_CURR_RX_DESC_PTR 0x008910 -#define GT96100_SDMA_G0_CHAN0_TX_DESC_BASE 0x00C900 -#define GT96100_SDMA_G0_CHAN0_CURR_TX_DESC_PTR 0x00C910 -#define GT96100_SDMA_G0_CHAN0_1ST_TX_DESC_PTR 0x00C914 -#define GT96100_SDMA_G0_CHAN1_CONFIG 0x010900 -#define GT96100_SDMA_G0_CHAN1_COMM 0x010908 -#define GT96100_SDMA_G0_CHAN1_RX_DESC_BASE 0x018900 -#define GT96100_SDMA_G0_CHAN1_CURR_RX_DESC_PTR 0x018910 -#define GT96100_SDMA_G0_CHAN1_TX_DESC_BASE 0x01C900 -#define GT96100_SDMA_G0_CHAN1_CURR_TX_DESC_PTR 0x01C910 -#define GT96100_SDMA_G0_CHAN1_1ST_TX_DESC_PTR 0x01C914 -#define GT96100_SDMA_G0_CHAN2_CONFIG 0x020900 -#define GT96100_SDMA_G0_CHAN2_COMM 0x020908 -#define GT96100_SDMA_G0_CHAN2_RX_DESC_BASE 0x028900 -#define GT96100_SDMA_G0_CHAN2_CURR_RX_DESC_PTR 0x028910 -#define GT96100_SDMA_G0_CHAN2_TX_DESC_BASE 0x02C900 -#define GT96100_SDMA_G0_CHAN2_CURR_TX_DESC_PTR 0x02C910 -#define GT96100_SDMA_G0_CHAN2_1ST_TX_DESC_PTR 0x02C914 -#define GT96100_SDMA_G0_CHAN3_CONFIG 0x030900 -#define GT96100_SDMA_G0_CHAN3_COMM 0x030908 -#define GT96100_SDMA_G0_CHAN3_RX_DESC_BASE 0x038900 -#define GT96100_SDMA_G0_CHAN3_CURR_RX_DESC_PTR 0x038910 -#define GT96100_SDMA_G0_CHAN3_TX_DESC_BASE 0x03C900 -#define GT96100_SDMA_G0_CHAN3_CURR_TX_DESC_PTR 0x03C910 -#define GT96100_SDMA_G0_CHAN3_1ST_TX_DESC_PTR 0x03C914 -#define GT96100_SDMA_G0_CHAN4_CONFIG 0x040900 -#define GT96100_SDMA_G0_CHAN4_COMM 0x040908 -#define GT96100_SDMA_G0_CHAN4_RX_DESC_BASE 0x048900 -#define GT96100_SDMA_G0_CHAN4_CURR_RX_DESC_PTR 0x048910 -#define GT96100_SDMA_G0_CHAN4_TX_DESC_BASE 0x04C900 -#define GT96100_SDMA_G0_CHAN4_CURR_TX_DESC_PTR 0x04C910 -#define GT96100_SDMA_G0_CHAN4_1ST_TX_DESC_PTR 0x04C914 -#define GT96100_SDMA_G0_CHAN5_CONFIG 0x050900 -#define GT96100_SDMA_G0_CHAN5_COMM 0x050908 -#define GT96100_SDMA_G0_CHAN5_RX_DESC_BASE 0x058900 -#define GT96100_SDMA_G0_CHAN5_CURR_RX_DESC_PTR 0x058910 -#define GT96100_SDMA_G0_CHAN5_TX_DESC_BASE 0x05C900 -#define GT96100_SDMA_G0_CHAN5_CURR_TX_DESC_PTR 0x05C910 -#define GT96100_SDMA_G0_CHAN5_1ST_TX_DESC_PTR 0x05C914 -#define GT96100_SDMA_G0_CHAN6_CONFIG 0x060900 -#define GT96100_SDMA_G0_CHAN6_COMM 0x060908 -#define GT96100_SDMA_G0_CHAN6_RX_DESC_BASE 0x068900 -#define GT96100_SDMA_G0_CHAN6_CURR_RX_DESC_PTR 0x068910 -#define GT96100_SDMA_G0_CHAN6_TX_DESC_BASE 0x06C900 -#define GT96100_SDMA_G0_CHAN6_CURR_TX_DESC_PTR 0x06C910 -#define GT96100_SDMA_G0_CHAN6_1ST_TX_DESC_PTR 0x06C914 -#define GT96100_SDMA_G0_CHAN7_CONFIG 0x070900 -#define GT96100_SDMA_G0_CHAN7_COMM 0x070908 -#define GT96100_SDMA_G0_CHAN7_RX_DESC_BASE 0x078900 -#define GT96100_SDMA_G0_CHAN7_CURR_RX_DESC_PTR 0x078910 -#define GT96100_SDMA_G0_CHAN7_TX_DESC_BASE 0x07C900 -#define GT96100_SDMA_G0_CHAN7_CURR_TX_DESC_PTR 0x07C910 -#define GT96100_SDMA_G0_CHAN7_1ST_TX_DESC_PTR 0x07C914 -/* SDMA Group 1 */ -#define GT96100_SDMA_G1_CHAN0_CONFIG 0x100900 -#define GT96100_SDMA_G1_CHAN0_COMM 0x100908 -#define GT96100_SDMA_G1_CHAN0_RX_DESC_BASE 0x108900 -#define GT96100_SDMA_G1_CHAN0_CURR_RX_DESC_PTR 0x108910 -#define GT96100_SDMA_G1_CHAN0_TX_DESC_BASE 0x10C900 -#define GT96100_SDMA_G1_CHAN0_CURR_TX_DESC_PTR 0x10C910 -#define GT96100_SDMA_G1_CHAN0_1ST_TX_DESC_PTR 0x10C914 -#define GT96100_SDMA_G1_CHAN1_CONFIG 0x110900 -#define GT96100_SDMA_G1_CHAN1_COMM 0x110908 -#define GT96100_SDMA_G1_CHAN1_RX_DESC_BASE 0x118900 -#define GT96100_SDMA_G1_CHAN1_CURR_RX_DESC_PTR 0x118910 -#define GT96100_SDMA_G1_CHAN1_TX_DESC_BASE 0x11C900 -#define GT96100_SDMA_G1_CHAN1_CURR_TX_DESC_PTR 0x11C910 -#define GT96100_SDMA_G1_CHAN1_1ST_TX_DESC_PTR 0x11C914 -#define GT96100_SDMA_G1_CHAN2_CONFIG 0x120900 -#define GT96100_SDMA_G1_CHAN2_COMM 0x120908 -#define GT96100_SDMA_G1_CHAN2_RX_DESC_BASE 0x128900 -#define GT96100_SDMA_G1_CHAN2_CURR_RX_DESC_PTR 0x128910 -#define GT96100_SDMA_G1_CHAN2_TX_DESC_BASE 0x12C900 -#define GT96100_SDMA_G1_CHAN2_CURR_TX_DESC_PTR 0x12C910 -#define GT96100_SDMA_G1_CHAN2_1ST_TX_DESC_PTR 0x12C914 -#define GT96100_SDMA_G1_CHAN3_CONFIG 0x130900 -#define GT96100_SDMA_G1_CHAN3_COMM 0x130908 -#define GT96100_SDMA_G1_CHAN3_RX_DESC_BASE 0x138900 -#define GT96100_SDMA_G1_CHAN3_CURR_RX_DESC_PTR 0x138910 -#define GT96100_SDMA_G1_CHAN3_TX_DESC_BASE 0x13C900 -#define GT96100_SDMA_G1_CHAN3_CURR_TX_DESC_PTR 0x13C910 -#define GT96100_SDMA_G1_CHAN3_1ST_TX_DESC_PTR 0x13C914 -#define GT96100_SDMA_G1_CHAN4_CONFIG 0x140900 -#define GT96100_SDMA_G1_CHAN4_COMM 0x140908 -#define GT96100_SDMA_G1_CHAN4_RX_DESC_BASE 0x148900 -#define GT96100_SDMA_G1_CHAN4_CURR_RX_DESC_PTR 0x148910 -#define GT96100_SDMA_G1_CHAN4_TX_DESC_BASE 0x14C900 -#define GT96100_SDMA_G1_CHAN4_CURR_TX_DESC_PTR 0x14C910 -#define GT96100_SDMA_G1_CHAN4_1ST_TX_DESC_PTR 0x14C914 -#define GT96100_SDMA_G1_CHAN5_CONFIG 0x150900 -#define GT96100_SDMA_G1_CHAN5_COMM 0x150908 -#define GT96100_SDMA_G1_CHAN5_RX_DESC_BASE 0x158900 -#define GT96100_SDMA_G1_CHAN5_CURR_RX_DESC_PTR 0x158910 -#define GT96100_SDMA_G1_CHAN5_TX_DESC_BASE 0x15C900 -#define GT96100_SDMA_G1_CHAN5_CURR_TX_DESC_PTR 0x15C910 -#define GT96100_SDMA_G1_CHAN5_1ST_TX_DESC_PTR 0x15C914 -#define GT96100_SDMA_G1_CHAN6_CONFIG 0x160900 -#define GT96100_SDMA_G1_CHAN6_COMM 0x160908 -#define GT96100_SDMA_G1_CHAN6_RX_DESC_BASE 0x168900 -#define GT96100_SDMA_G1_CHAN6_CURR_RX_DESC_PTR 0x168910 -#define GT96100_SDMA_G1_CHAN6_TX_DESC_BASE 0x16C900 -#define GT96100_SDMA_G1_CHAN6_CURR_TX_DESC_PTR 0x16C910 -#define GT96100_SDMA_G1_CHAN6_1ST_TX_DESC_PTR 0x16C914 -#define GT96100_SDMA_G1_CHAN7_CONFIG 0x170900 -#define GT96100_SDMA_G1_CHAN7_COMM 0x170908 -#define GT96100_SDMA_G1_CHAN7_RX_DESC_BASE 0x178900 -#define GT96100_SDMA_G1_CHAN7_CURR_RX_DESC_PTR 0x178910 -#define GT96100_SDMA_G1_CHAN7_TX_DESC_BASE 0x17C900 -#define GT96100_SDMA_G1_CHAN7_CURR_TX_DESC_PTR 0x17C910 -#define GT96100_SDMA_G1_CHAN7_1ST_TX_DESC_PTR 0x17C914 -/* MPSCs */ -#define GT96100_MPSC0_MAIN_CONFIG_LOW 0x000A00 -#define GT96100_MPSC0_MAIN_CONFIG_HIGH 0x000A04 -#define GT96100_MPSC0_PROTOCOL_CONFIG 0x000A08 -#define GT96100_MPSC_CHAN0_REG1 0x000A0C -#define GT96100_MPSC_CHAN0_REG2 0x000A10 -#define GT96100_MPSC_CHAN0_REG3 0x000A14 -#define GT96100_MPSC_CHAN0_REG4 0x000A18 -#define GT96100_MPSC_CHAN0_REG5 0x000A1C -#define GT96100_MPSC_CHAN0_REG6 0x000A20 -#define GT96100_MPSC_CHAN0_REG7 0x000A24 -#define GT96100_MPSC_CHAN0_REG8 0x000A28 -#define GT96100_MPSC_CHAN0_REG9 0x000A2C -#define GT96100_MPSC_CHAN0_REG10 0x000A30 -#define GT96100_MPSC_CHAN0_REG11 0x000A34 -#define GT96100_MPSC1_MAIN_CONFIG_LOW 0x008A00 -#define GT96100_MPSC1_MAIN_CONFIG_HIGH 0x008A04 -#define GT96100_MPSC1_PROTOCOL_CONFIG 0x008A08 -#define GT96100_MPSC_CHAN1_REG1 0x008A0C -#define GT96100_MPSC_CHAN1_REG2 0x008A10 -#define GT96100_MPSC_CHAN1_REG3 0x008A14 -#define GT96100_MPSC_CHAN1_REG4 0x008A18 -#define GT96100_MPSC_CHAN1_REG5 0x008A1C -#define GT96100_MPSC_CHAN1_REG6 0x008A20 -#define GT96100_MPSC_CHAN1_REG7 0x008A24 -#define GT96100_MPSC_CHAN1_REG8 0x008A28 -#define GT96100_MPSC_CHAN1_REG9 0x008A2C -#define GT96100_MPSC_CHAN1_REG10 0x008A30 -#define GT96100_MPSC_CHAN1_REG11 0x008A34 -#define GT96100_MPSC2_MAIN_CONFIG_LOW 0x010A00 -#define GT96100_MPSC2_MAIN_CONFIG_HIGH 0x010A04 -#define GT96100_MPSC2_PROTOCOL_CONFIG 0x010A08 -#define GT96100_MPSC_CHAN2_REG1 0x010A0C -#define GT96100_MPSC_CHAN2_REG2 0x010A10 -#define GT96100_MPSC_CHAN2_REG3 0x010A14 -#define GT96100_MPSC_CHAN2_REG4 0x010A18 -#define GT96100_MPSC_CHAN2_REG5 0x010A1C -#define GT96100_MPSC_CHAN2_REG6 0x010A20 -#define GT96100_MPSC_CHAN2_REG7 0x010A24 -#define GT96100_MPSC_CHAN2_REG8 0x010A28 -#define GT96100_MPSC_CHAN2_REG9 0x010A2C -#define GT96100_MPSC_CHAN2_REG10 0x010A30 -#define GT96100_MPSC_CHAN2_REG11 0x010A34 -#define GT96100_MPSC3_MAIN_CONFIG_LOW 0x018A00 -#define GT96100_MPSC3_MAIN_CONFIG_HIGH 0x018A04 -#define GT96100_MPSC3_PROTOCOL_CONFIG 0x018A08 -#define GT96100_MPSC_CHAN3_REG1 0x018A0C -#define GT96100_MPSC_CHAN3_REG2 0x018A10 -#define GT96100_MPSC_CHAN3_REG3 0x018A14 -#define GT96100_MPSC_CHAN3_REG4 0x018A18 -#define GT96100_MPSC_CHAN3_REG5 0x018A1C -#define GT96100_MPSC_CHAN3_REG6 0x018A20 -#define GT96100_MPSC_CHAN3_REG7 0x018A24 -#define GT96100_MPSC_CHAN3_REG8 0x018A28 -#define GT96100_MPSC_CHAN3_REG9 0x018A2C -#define GT96100_MPSC_CHAN3_REG10 0x018A30 -#define GT96100_MPSC_CHAN3_REG11 0x018A34 -#define GT96100_MPSC4_MAIN_CONFIG_LOW 0x020A00 -#define GT96100_MPSC4_MAIN_CONFIG_HIGH 0x020A04 -#define GT96100_MPSC4_PROTOCOL_CONFIG 0x020A08 -#define GT96100_MPSC_CHAN4_REG1 0x020A0C -#define GT96100_MPSC_CHAN4_REG2 0x020A10 -#define GT96100_MPSC_CHAN4_REG3 0x020A14 -#define GT96100_MPSC_CHAN4_REG4 0x020A18 -#define GT96100_MPSC_CHAN4_REG5 0x020A1C -#define GT96100_MPSC_CHAN4_REG6 0x020A20 -#define GT96100_MPSC_CHAN4_REG7 0x020A24 -#define GT96100_MPSC_CHAN4_REG8 0x020A28 -#define GT96100_MPSC_CHAN4_REG9 0x020A2C -#define GT96100_MPSC_CHAN4_REG10 0x020A30 -#define GT96100_MPSC_CHAN4_REG11 0x020A34 -#define GT96100_MPSC5_MAIN_CONFIG_LOW 0x028A00 -#define GT96100_MPSC5_MAIN_CONFIG_HIGH 0x028A04 -#define GT96100_MPSC5_PROTOCOL_CONFIG 0x028A08 -#define GT96100_MPSC_CHAN5_REG1 0x028A0C -#define GT96100_MPSC_CHAN5_REG2 0x028A10 -#define GT96100_MPSC_CHAN5_REG3 0x028A14 -#define GT96100_MPSC_CHAN5_REG4 0x028A18 -#define GT96100_MPSC_CHAN5_REG5 0x028A1C -#define GT96100_MPSC_CHAN5_REG6 0x028A20 -#define GT96100_MPSC_CHAN5_REG7 0x028A24 -#define GT96100_MPSC_CHAN5_REG8 0x028A28 -#define GT96100_MPSC_CHAN5_REG9 0x028A2C -#define GT96100_MPSC_CHAN5_REG10 0x028A30 -#define GT96100_MPSC_CHAN5_REG11 0x028A34 -#define GT96100_MPSC6_MAIN_CONFIG_LOW 0x030A00 -#define GT96100_MPSC6_MAIN_CONFIG_HIGH 0x030A04 -#define GT96100_MPSC6_PROTOCOL_CONFIG 0x030A08 -#define GT96100_MPSC_CHAN6_REG1 0x030A0C -#define GT96100_MPSC_CHAN6_REG2 0x030A10 -#define GT96100_MPSC_CHAN6_REG3 0x030A14 -#define GT96100_MPSC_CHAN6_REG4 0x030A18 -#define GT96100_MPSC_CHAN6_REG5 0x030A1C -#define GT96100_MPSC_CHAN6_REG6 0x030A20 -#define GT96100_MPSC_CHAN6_REG7 0x030A24 -#define GT96100_MPSC_CHAN6_REG8 0x030A28 -#define GT96100_MPSC_CHAN6_REG9 0x030A2C -#define GT96100_MPSC_CHAN6_REG10 0x030A30 -#define GT96100_MPSC_CHAN6_REG11 0x030A34 -#define GT96100_MPSC7_MAIN_CONFIG_LOW 0x038A00 -#define GT96100_MPSC7_MAIN_CONFIG_HIGH 0x038A04 -#define GT96100_MPSC7_PROTOCOL_CONFIG 0x038A08 -#define GT96100_MPSC_CHAN7_REG1 0x038A0C -#define GT96100_MPSC_CHAN7_REG2 0x038A10 -#define GT96100_MPSC_CHAN7_REG3 0x038A14 -#define GT96100_MPSC_CHAN7_REG4 0x038A18 -#define GT96100_MPSC_CHAN7_REG5 0x038A1C -#define GT96100_MPSC_CHAN7_REG6 0x038A20 -#define GT96100_MPSC_CHAN7_REG7 0x038A24 -#define GT96100_MPSC_CHAN7_REG8 0x038A28 -#define GT96100_MPSC_CHAN7_REG9 0x038A2C -#define GT96100_MPSC_CHAN7_REG10 0x038A30 -#define GT96100_MPSC_CHAN7_REG11 0x038A34 -/* FlexTDMs */ -/* TDPR0 - Transmit Dual Port RAM. block size 0xff */ -#define GT96100_FXTDM0_TDPR0_BLK0_BASE 0x000B00 -#define GT96100_FXTDM0_TDPR0_BLK1_BASE 0x001B00 -#define GT96100_FXTDM0_TDPR0_BLK2_BASE 0x002B00 -#define GT96100_FXTDM0_TDPR0_BLK3_BASE 0x003B00 -/* RDPR0 - Receive Dual Port RAM. block size 0xff */ -#define GT96100_FXTDM0_RDPR0_BLK0_BASE 0x004B00 -#define GT96100_FXTDM0_RDPR0_BLK1_BASE 0x005B00 -#define GT96100_FXTDM0_RDPR0_BLK2_BASE 0x006B00 -#define GT96100_FXTDM0_RDPR0_BLK3_BASE 0x007B00 -#define GT96100_FXTDM0_TX_READ_PTR 0x008B00 -#define GT96100_FXTDM0_RX_READ_PTR 0x008B04 -#define GT96100_FXTDM0_CONFIG 0x008B08 -#define GT96100_FXTDM0_AUX_CHANA_TX 0x008B0C -#define GT96100_FXTDM0_AUX_CHANA_RX 0x008B10 -#define GT96100_FXTDM0_AUX_CHANB_TX 0x008B14 -#define GT96100_FXTDM0_AUX_CHANB_RX 0x008B18 -#define GT96100_FXTDM1_TDPR1_BLK0_BASE 0x010B00 -#define GT96100_FXTDM1_TDPR1_BLK1_BASE 0x011B00 -#define GT96100_FXTDM1_TDPR1_BLK2_BASE 0x012B00 -#define GT96100_FXTDM1_TDPR1_BLK3_BASE 0x013B00 -#define GT96100_FXTDM1_RDPR1_BLK0_BASE 0x014B00 -#define GT96100_FXTDM1_RDPR1_BLK1_BASE 0x015B00 -#define GT96100_FXTDM1_RDPR1_BLK2_BASE 0x016B00 -#define GT96100_FXTDM1_RDPR1_BLK3_BASE 0x017B00 -#define GT96100_FXTDM1_TX_READ_PTR 0x018B00 -#define GT96100_FXTDM1_RX_READ_PTR 0x018B04 -#define GT96100_FXTDM1_CONFIG 0x018B08 -#define GT96100_FXTDM1_AUX_CHANA_TX 0x018B0C -#define GT96100_FXTDM1_AUX_CHANA_RX 0x018B10 -#define GT96100_FLTDM1_AUX_CHANB_TX 0x018B14 -#define GT96100_FLTDM1_AUX_CHANB_RX 0x018B18 -#define GT96100_FLTDM2_TDPR2_BLK0_BASE 0x020B00 -#define GT96100_FLTDM2_TDPR2_BLK1_BASE 0x021B00 -#define GT96100_FLTDM2_TDPR2_BLK2_BASE 0x022B00 -#define GT96100_FLTDM2_TDPR2_BLK3_BASE 0x023B00 -#define GT96100_FLTDM2_RDPR2_BLK0_BASE 0x024B00 -#define GT96100_FLTDM2_RDPR2_BLK1_BASE 0x025B00 -#define GT96100_FLTDM2_RDPR2_BLK2_BASE 0x026B00 -#define GT96100_FLTDM2_RDPR2_BLK3_BASE 0x027B00 -#define GT96100_FLTDM2_TX_READ_PTR 0x028B00 -#define GT96100_FLTDM2_RX_READ_PTR 0x028B04 -#define GT96100_FLTDM2_CONFIG 0x028B08 -#define GT96100_FLTDM2_AUX_CHANA_TX 0x028B0C -#define GT96100_FLTDM2_AUX_CHANA_RX 0x028B10 -#define GT96100_FLTDM2_AUX_CHANB_TX 0x028B14 -#define GT96100_FLTDM2_AUX_CHANB_RX 0x028B18 -#define GT96100_FLTDM3_TDPR3_BLK0_BASE 0x030B00 -#define GT96100_FLTDM3_TDPR3_BLK1_BASE 0x031B00 -#define GT96100_FLTDM3_TDPR3_BLK2_BASE 0x032B00 -#define GT96100_FLTDM3_TDPR3_BLK3_BASE 0x033B00 -#define GT96100_FXTDM3_RDPR3_BLK0_BASE 0x034B00 -#define GT96100_FXTDM3_RDPR3_BLK1_BASE 0x035B00 -#define GT96100_FXTDM3_RDPR3_BLK2_BASE 0x036B00 -#define GT96100_FXTDM3_RDPR3_BLK3_BASE 0x037B00 -#define GT96100_FXTDM3_TX_READ_PTR 0x038B00 -#define GT96100_FXTDM3_RX_READ_PTR 0x038B04 -#define GT96100_FXTDM3_CONFIG 0x038B08 -#define GT96100_FXTDM3_AUX_CHANA_TX 0x038B0C -#define GT96100_FXTDM3_AUX_CHANA_RX 0x038B10 -#define GT96100_FXTDM3_AUX_CHANB_TX 0x038B14 -#define GT96100_FXTDM3_AUX_CHANB_RX 0x038B18 -/* Baud Rate Generators */ -#define GT96100_BRG0_CONFIG 0x102A00 -#define GT96100_BRG0_BAUD_TUNE 0x102A04 -#define GT96100_BRG1_CONFIG 0x102A08 -#define GT96100_BRG1_BAUD_TUNE 0x102A0C -#define GT96100_BRG2_CONFIG 0x102A10 -#define GT96100_BRG2_BAUD_TUNE 0x102A14 -#define GT96100_BRG3_CONFIG 0x102A18 -#define GT96100_BRG3_BAUD_TUNE 0x102A1C -#define GT96100_BRG4_CONFIG 0x102A20 -#define GT96100_BRG4_BAUD_TUNE 0x102A24 -#define GT96100_BRG5_CONFIG 0x102A28 -#define GT96100_BRG5_BAUD_TUNE 0x102A2C -#define GT96100_BRG6_CONFIG 0x102A30 -#define GT96100_BRG6_BAUD_TUNE 0x102A34 -#define GT96100_BRG7_CONFIG 0x102A38 -#define GT96100_BRG7_BAUD_TUNE 0x102A3C -/* Routing Registers */ -#define GT96100_ROUTE_MAIN 0x101A00 -#define GT96100_ROUTE_RX_CLOCK 0x101A10 -#define GT96100_ROUTE_TX_CLOCK 0x101A20 -/* General Purpose Ports */ -#define GT96100_GPP_CONFIG0 0x100A00 -#define GT96100_GPP_CONFIG1 0x100A04 -#define GT96100_GPP_CONFIG2 0x100A08 -#define GT96100_GPP_CONFIG3 0x100A0C -#define GT96100_GPP_IO0 0x100A20 -#define GT96100_GPP_IO1 0x100A24 -#define GT96100_GPP_IO2 0x100A28 -#define GT96100_GPP_IO3 0x100A2C -#define GT96100_GPP_DATA0 0x100A40 -#define GT96100_GPP_DATA1 0x100A44 -#define GT96100_GPP_DATA2 0x100A48 -#define GT96100_GPP_DATA3 0x100A4C -#define GT96100_GPP_LEVEL0 0x100A60 -#define GT96100_GPP_LEVEL1 0x100A64 -#define GT96100_GPP_LEVEL2 0x100A68 -#define GT96100_GPP_LEVEL3 0x100A6C -/* Watchdog */ -#define GT96100_WD_CONFIG 0x101A80 -#define GT96100_WD_VALUE 0x101A84 -/* Communication Unit Arbiter */ -#define GT96100_COMM_UNIT_ARBTR_CONFIG 0x101AC0 -/* PCI Arbiters */ -#define GT96100_PCI0_ARBTR_CONFIG 0x101AE0 -#define GT96100_PCI1_ARBTR_CONFIG 0x101AE4 -/* CIU Arbiter */ -#define GT96100_CIU_ARBITER_CONFIG 0x101AC0 -/* Interrupt Controller */ -#define GT96100_MAIN_CAUSE 0x000C18 -#define GT96100_INT0_MAIN_MASK 0x000C1C -#define GT96100_INT1_MAIN_MASK 0x000C24 -#define GT96100_HIGH_CAUSE 0x000C98 -#define GT96100_INT0_HIGH_MASK 0x000C9C -#define GT96100_INT1_HIGH_MASK 0x000CA4 -#define GT96100_INT0_SELECT 0x000C70 -#define GT96100_INT1_SELECT 0x000C74 -#define GT96100_SERIAL_CAUSE 0x103A00 -#define GT96100_SERINT0_MASK 0x103A80 -#define GT96100_SERINT1_MASK 0x103A88 - -#endif /* _GT96100_H */
diff --git a/include/asm-mips/hazards.h b/include/asm-mips/hazards.h index 25f5e8a..0fe0294 100644 --- a/include/asm-mips/hazards.h +++ b/include/asm-mips/hazards.h
@@ -12,252 +12,53 @@ #ifdef __ASSEMBLY__ - - .macro _ssnop - sll $0, $0, 1 - .endm - - .macro _ehb - sll $0, $0, 3 - .endm - -/* - * RM9000 hazards. When the JTLB is updated by tlbwi or tlbwr, a subsequent - * use of the JTLB for instructions should not occur for 4 cpu cycles and use - * for data translations should not occur for 3 cpu cycles. - */ -#ifdef CONFIG_CPU_RM9000 - - .macro mtc0_tlbw_hazard - .set push - .set mips32 - _ssnop; _ssnop; _ssnop; _ssnop - .set pop - .endm - - .macro tlbw_eret_hazard - .set push - .set mips32 - _ssnop; _ssnop; _ssnop; _ssnop - .set pop - .endm - +#define ASMMACRO(name, code...) .macro name; code; .endm #else -/* - * The taken branch will result in a two cycle penalty for the two killed - * instructions on R4000 / R4400. Other processors only have a single cycle - * hazard so this is nice trick to have an optimal code for a range of - * processors. - */ - .macro mtc0_tlbw_hazard - b . + 8 - .endm +#define ASMMACRO(name, code...) \ +__asm__(".macro " #name "; " #code "; .endm"); \ + \ +static inline void name(void) \ +{ \ + __asm__ __volatile__ (#name); \ +} - .macro tlbw_eret_hazard - .endm #endif +ASMMACRO(_ssnop, + sll $0, $0, 1 + ) + +ASMMACRO(_ehb, + sll $0, $0, 3 + ) + /* - * mtc0->mfc0 hazard - * The 24K has a 2 cycle mtc0/mfc0 execution hazard. - * It is a MIPS32R2 processor so ehb will clear the hazard. + * TLB hazards + */ +#if defined(CONFIG_CPU_MIPSR2) + +/* + * MIPSR2 defines ehb for hazard avoidance */ -#ifdef CONFIG_CPU_MIPSR2 -/* - * Use a macro for ehb unless explicit support for MIPSR2 is enabled - */ - -#define irq_enable_hazard \ +ASMMACRO(mtc0_tlbw_hazard, + _ehb + ) +ASMMACRO(tlbw_use_hazard, + _ehb + ) +ASMMACRO(tlb_probe_hazard, + _ehb + ) +ASMMACRO(irq_enable_hazard, + ) +ASMMACRO(irq_disable_hazard, _ehb - -#define irq_disable_hazard \ - _ehb - -#elif defined(CONFIG_CPU_R10000) || defined(CONFIG_CPU_RM9000) - -/* - * R10000 rocks - all hazards handled in hardware, so this becomes a nobrainer. - */ - -#define irq_enable_hazard - -#define irq_disable_hazard - -#else - -/* - * Classic MIPS needs 1 - 3 nops or ssnops - */ -#define irq_enable_hazard -#define irq_disable_hazard \ - _ssnop; _ssnop; _ssnop - -#endif - -#else /* __ASSEMBLY__ */ - -__asm__( - " .macro _ssnop \n" - " sll $0, $0, 1 \n" - " .endm \n" - " \n" - " .macro _ehb \n" - " sll $0, $0, 3 \n" - " .endm \n"); - -#ifdef CONFIG_CPU_RM9000 - -/* - * RM9000 hazards. When the JTLB is updated by tlbwi or tlbwr, a subsequent - * use of the JTLB for instructions should not occur for 4 cpu cycles and use - * for data translations should not occur for 3 cpu cycles. - */ - -#define mtc0_tlbw_hazard() \ - __asm__ __volatile__( \ - " .set mips32 \n" \ - " _ssnop \n" \ - " _ssnop \n" \ - " _ssnop \n" \ - " _ssnop \n" \ - " .set mips0 \n") - -#define tlbw_use_hazard() \ - __asm__ __volatile__( \ - " .set mips32 \n" \ - " _ssnop \n" \ - " _ssnop \n" \ - " _ssnop \n" \ - " _ssnop \n" \ - " .set mips0 \n") - -#else - -/* - * Overkill warning ... - */ -#define mtc0_tlbw_hazard() \ - __asm__ __volatile__( \ - " .set noreorder \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " .set reorder \n") - -#define tlbw_use_hazard() \ - __asm__ __volatile__( \ - " .set noreorder \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " nop \n" \ - " .set reorder \n") - -#endif - -/* - * Interrupt enable/disable hazards - * Some processors have hazards when modifying - * the status register to change the interrupt state - */ - -#ifdef CONFIG_CPU_MIPSR2 - -__asm__(" .macro irq_enable_hazard \n" - " _ehb \n" - " .endm \n" - " \n" - " .macro irq_disable_hazard \n" - " _ehb \n" - " .endm \n"); - -#elif defined(CONFIG_CPU_R10000) || defined(CONFIG_CPU_RM9000) - -/* - * R10000 rocks - all hazards handled in hardware, so this becomes a nobrainer. - */ - -__asm__( - " .macro irq_enable_hazard \n" - " .endm \n" - " \n" - " .macro irq_disable_hazard \n" - " .endm \n"); - -#else - -/* - * Default for classic MIPS processors. Assume worst case hazards but don't - * care about the irq_enable_hazard - sooner or later the hardware will - * enable it and we don't care when exactly. - */ - -__asm__( - " # \n" - " # There is a hazard but we do not care \n" - " # \n" - " .macro\tirq_enable_hazard \n" - " .endm \n" - " \n" - " .macro\tirq_disable_hazard \n" - " _ssnop \n" - " _ssnop \n" - " _ssnop \n" - " .endm \n"); - -#endif - -#define irq_enable_hazard() \ - __asm__ __volatile__("irq_enable_hazard") -#define irq_disable_hazard() \ - __asm__ __volatile__("irq_disable_hazard") - - -/* - * Back-to-back hazards - - * - * What is needed to separate a move to cp0 from a subsequent read from the - * same cp0 register? - */ -#ifdef CONFIG_CPU_MIPSR2 - -__asm__(" .macro back_to_back_c0_hazard \n" - " _ehb \n" - " .endm \n"); - -#elif defined(CONFIG_CPU_R10000) || defined(CONFIG_CPU_RM9000) || \ - defined(CONFIG_CPU_SB1) - -__asm__(" .macro back_to_back_c0_hazard \n" - " .endm \n"); - -#else - -__asm__(" .macro back_to_back_c0_hazard \n" - " .set noreorder \n" - " _ssnop \n" - " _ssnop \n" - " _ssnop \n" - " .set reorder \n" - " .endm"); - -#endif - -#define back_to_back_c0_hazard() \ - __asm__ __volatile__("back_to_back_c0_hazard") - - -/* - * Instruction execution hazard - */ -#ifdef CONFIG_CPU_MIPSR2 + ) +ASMMACRO(back_to_back_c0_hazard, + _ehb + ) /* * gcc has a tradition of misscompiling the previous construct using the * address of a label as argument to inline assembler. Gas otoh has the @@ -279,12 +80,101 @@ : "=r" (tmp)); \ } while (0) -#else +#elif defined(CONFIG_CPU_R10000) + +/* + * R10000 rocks - all hazards handled in hardware, so this becomes a nobrainer. + */ + +ASMMACRO(mtc0_tlbw_hazard, + ) +ASMMACRO(tlbw_use_hazard, + ) +ASMMACRO(tlb_probe_hazard, + ) +ASMMACRO(irq_enable_hazard, + ) +ASMMACRO(irq_disable_hazard, + ) +ASMMACRO(back_to_back_c0_hazard, + ) #define instruction_hazard() do { } while (0) + +#elif defined(CONFIG_CPU_RM9000) + +/* + * RM9000 hazards. When the JTLB is updated by tlbwi or tlbwr, a subsequent + * use of the JTLB for instructions should not occur for 4 cpu cycles and use + * for data translations should not occur for 3 cpu cycles. + */ + +ASMMACRO(mtc0_tlbw_hazard, + _ssnop; _ssnop; _ssnop; _ssnop + ) +ASMMACRO(tlbw_use_hazard, + _ssnop; _ssnop; _ssnop; _ssnop + ) +ASMMACRO(tlb_probe_hazard, + _ssnop; _ssnop; _ssnop; _ssnop + ) +ASMMACRO(irq_enable_hazard, + ) +ASMMACRO(irq_disable_hazard, + ) +ASMMACRO(back_to_back_c0_hazard, + ) +#define instruction_hazard() do { } while (0) + +#elif defined(CONFIG_CPU_SB1) + +/* + * Mostly like R4000 for historic reasons + */ +ASMMACRO(mtc0_tlbw_hazard, + ) +ASMMACRO(tlbw_use_hazard, + ) +ASMMACRO(tlb_probe_hazard, + ) +ASMMACRO(irq_enable_hazard, + ) +ASMMACRO(irq_disable_hazard, + _ssnop; _ssnop; _ssnop + ) +ASMMACRO(back_to_back_c0_hazard, + ) +#define instruction_hazard() do { } while (0) + +#else + +/* + * Finally the catchall case for all other processors including R4000, R4400, + * R4600, R4700, R5000, RM7000, NEC VR41xx etc. + * + * The taken branch will result in a two cycle penalty for the two killed + * instructions on R4000 / R4400. Other processors only have a single cycle + * hazard so this is nice trick to have an optimal code for a range of + * processors. + */ +ASMMACRO(mtc0_tlbw_hazard, + nop + ) +ASMMACRO(tlbw_use_hazard, + nop; nop; nop + ) +ASMMACRO(tlb_probe_hazard, + nop; nop; nop + ) +ASMMACRO(irq_enable_hazard, + ) +ASMMACRO(irq_disable_hazard, + nop; nop; nop + ) +ASMMACRO(back_to_back_c0_hazard, + _ssnop; _ssnop; _ssnop; + ) +#define instruction_hazard() do { } while (0) + #endif -extern void mips_ihb(void); - -#endif /* __ASSEMBLY__ */ - #endif /* _ASM_HAZARDS_H */
diff --git a/include/asm-mips/irq.h b/include/asm-mips/irq.h index 896550b..d35c617 100644 --- a/include/asm-mips/irq.h +++ b/include/asm-mips/irq.h
@@ -76,8 +76,4 @@ unsigned long hwmask); #endif /* CONFIG_MIPS_MT_SMTC */ -#ifdef CONFIG_SMP -#define ARCH_HAS_IRQ_PER_CPU -#endif - #endif /* _ASM_IRQ_H */
diff --git a/include/asm-mips/mach-atlas/mc146818rtc.h b/include/asm-mips/mach-atlas/mc146818rtc.h index 397522e..a73a569 100644 --- a/include/asm-mips/mach-atlas/mc146818rtc.h +++ b/include/asm-mips/mach-atlas/mc146818rtc.h
@@ -28,10 +28,12 @@ #include <asm/mips-boards/atlas.h> #include <asm/mips-boards/atlasint.h> +#define ARCH_RTC_LOCATION + #define RTC_PORT(x) (ATLAS_RTC_ADR_REG + (x) * 8) #define RTC_IO_EXTENT 0x100 #define RTC_IOMAPPED 0 -#define RTC_IRQ ATLASINT_RTC +#define RTC_IRQ ATLAS_INT_RTC static inline unsigned char CMOS_READ(unsigned long addr) {
diff --git a/include/asm-mips/mach-au1x00/au1xxx_dbdma.h b/include/asm-mips/mach-au1x00/au1xxx_dbdma.h index d5b38a2..eeb0c31 100644 --- a/include/asm-mips/mach-au1x00/au1xxx_dbdma.h +++ b/include/asm-mips/mach-au1x00/au1xxx_dbdma.h
@@ -316,7 +316,7 @@ au1x_ddma_desc_t *chan_desc_base; au1x_ddma_desc_t *get_ptr, *put_ptr, *cur_ptr; void *chan_callparam; - void (*chan_callback)(int, void *, struct pt_regs *); + void (*chan_callback)(int, void *); } chan_tab_t; #define DEV_FLAGS_INUSE (1 << 0) @@ -334,8 +334,8 @@ * meaningful name. The 'callback' is called during dma completion * interrupt. */ -u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid, - void (*callback)(int, void *, struct pt_regs *), void *callparam); +extern u32 au1xxx_dbdma_chan_alloc(u32 srcid, u32 destid, + void (*callback)(int, void *), void *callparam); #define DBDMA_MEM_CHAN DSCR_CMD0_ALWAYS
diff --git a/include/asm-mips/mach-ev96100/mach-gt64120.h b/include/asm-mips/mach-ev96100/mach-gt64120.h deleted file mode 100644 index 0ef1e6c..0000000 --- a/include/asm-mips/mach-ev96100/mach-gt64120.h +++ /dev/null
@@ -1,46 +0,0 @@ -/* - * This is a direct copy of the ev96100.h file, with a global - * search and replace. The numbers are the same. - * - * The reason I'm duplicating this is so that the 64120/96100 - * defines won't be confusing in the source code. - */ -#ifndef _ASM_GT64120_EV96100_GT64120_DEP_H -#define _ASM_GT64120_EV96100_GT64120_DEP_H - -/* - * GT96100 config space base address - */ -#define GT64120_BASE (KSEG1ADDR(0x14000000)) - -/* - * PCI Bus allocation - * - * (Guessing ...) - */ -#define GT_PCI_MEM_BASE 0x12000000UL -#define GT_PCI_MEM_SIZE 0x02000000UL -#define GT_PCI_IO_BASE 0x10000000UL -#define GT_PCI_IO_SIZE 0x02000000UL -#define GT_ISA_IO_BASE PCI_IO_BASE - -/* - * Duart I/O ports. - */ -#define EV96100_COM1_BASE_ADDR (0xBD000000 + 0x20) -#define EV96100_COM2_BASE_ADDR (0xBD000000 + 0x00) - - -/* - * EV96100 interrupt controller register base. - */ -#define EV96100_ICTRL_REGS_BASE (KSEG1ADDR(0x1f000000)) - -/* - * EV96100 UART register base. - */ -#define EV96100_UART0_REGS_BASE EV96100_COM1_BASE_ADDR -#define EV96100_UART1_REGS_BASE EV96100_COM2_BASE_ADDR -#define EV96100_BASE_BAUD ( 3686400 / 16 ) - -#endif /* _ASM_GT64120_EV96100_GT64120_DEP_H */
diff --git a/include/asm-mips/mach-excite/excite.h b/include/asm-mips/mach-excite/excite.h index 130bd4b..4c29ba4 100644 --- a/include/asm-mips/mach-excite/excite.h +++ b/include/asm-mips/mach-excite/excite.h
@@ -7,7 +7,7 @@ #define EXCITE_CPU_EXT_CLOCK 100000000 -#if !defined(__ASSEMBLER__) +#if !defined(__ASSEMBLY__) void __init excite_kgdb_init(void); void excite_procfs_init(void); extern unsigned long memsize;
diff --git a/arch/mips/basler/excite/excite_fpga.h b/include/asm-mips/mach-excite/excite_fpga.h similarity index 100% rename from arch/mips/basler/excite/excite_fpga.h rename to include/asm-mips/mach-excite/excite_fpga.h
diff --git a/include/asm-mips/mach-qemu/cpu-feature-overrides.h b/include/asm-mips/mach-qemu/cpu-feature-overrides.h index f4e370e..529445d 100644 --- a/include/asm-mips/mach-qemu/cpu-feature-overrides.h +++ b/include/asm-mips/mach-qemu/cpu-feature-overrides.h
@@ -20,7 +20,7 @@ #define cpu_has_llsc 1 #define cpu_has_vtag_icache 0 -#define cpu_has_dc_aliases (PAGE_SIZE < 0x4000) +#define cpu_has_dc_aliases 0 #define cpu_has_ic_fills_f_dc 0 #define cpu_has_dsp 0
diff --git a/include/asm-mips/mips-boards/atlasint.h b/include/asm-mips/mips-boards/atlasint.h index fd7ebc5..b15e4ea 100644 --- a/include/asm-mips/mips-boards/atlasint.h +++ b/include/asm-mips/mips-boards/atlasint.h
@@ -1,6 +1,7 @@ /* - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999 MIPS Technologies, Inc. All rights reserved. + * Copyright (C) 1999, 2006 MIPS Technologies, Inc. All rights reserved. + * Authors: Carsten Langgaard <carstenl@mips.com> + * Maciej W. Rozycki <macro@mips.com> * * ######################################################################## * @@ -25,41 +26,88 @@ #ifndef _MIPS_ATLASINT_H #define _MIPS_ATLASINT_H -#define ATLASINT_BASE 1 -#define ATLASINT_UART (ATLASINT_BASE+0) -#define ATLASINT_TIM0 (ATLASINT_BASE+1) -#define ATLASINT_RES2 (ATLASINT_BASE+2) -#define ATLASINT_RES3 (ATLASINT_BASE+3) -#define ATLASINT_RTC (ATLASINT_BASE+4) -#define ATLASINT_COREHI (ATLASINT_BASE+5) -#define ATLASINT_CORELO (ATLASINT_BASE+6) -#define ATLASINT_RES7 (ATLASINT_BASE+7) -#define ATLASINT_PCIA (ATLASINT_BASE+8) -#define ATLASINT_PCIB (ATLASINT_BASE+9) -#define ATLASINT_PCIC (ATLASINT_BASE+10) -#define ATLASINT_PCID (ATLASINT_BASE+11) -#define ATLASINT_ENUM (ATLASINT_BASE+12) -#define ATLASINT_DEG (ATLASINT_BASE+13) -#define ATLASINT_ATXFAIL (ATLASINT_BASE+14) -#define ATLASINT_INTA (ATLASINT_BASE+15) -#define ATLASINT_INTB (ATLASINT_BASE+16) -#define ATLASINT_ETH ATLASINT_INTB -#define ATLASINT_INTC (ATLASINT_BASE+17) -#define ATLASINT_SCSI ATLASINT_INTC -#define ATLASINT_INTD (ATLASINT_BASE+18) -#define ATLASINT_SERR (ATLASINT_BASE+19) -#define ATLASINT_RES20 (ATLASINT_BASE+20) -#define ATLASINT_RES21 (ATLASINT_BASE+21) -#define ATLASINT_RES22 (ATLASINT_BASE+22) -#define ATLASINT_RES23 (ATLASINT_BASE+23) -#define ATLASINT_RES24 (ATLASINT_BASE+24) -#define ATLASINT_RES25 (ATLASINT_BASE+25) -#define ATLASINT_RES26 (ATLASINT_BASE+26) -#define ATLASINT_RES27 (ATLASINT_BASE+27) -#define ATLASINT_RES28 (ATLASINT_BASE+28) -#define ATLASINT_RES29 (ATLASINT_BASE+29) -#define ATLASINT_RES30 (ATLASINT_BASE+30) -#define ATLASINT_RES31 (ATLASINT_BASE+31) -#define ATLASINT_END (ATLASINT_BASE+31) +/* + * Interrupts 0..7 are used for Atlas CPU interrupts (nonEIC mode) + */ +#define MIPSCPU_INT_BASE 0 + +/* CPU interrupt offsets */ +#define MIPSCPU_INT_SW0 0 +#define MIPSCPU_INT_SW1 1 +#define MIPSCPU_INT_MB0 2 +#define MIPSCPU_INT_ATLAS MIPSCPU_INT_MB0 +#define MIPSCPU_INT_MB1 3 +#define MIPSCPU_INT_MB2 4 +#define MIPSCPU_INT_MB3 5 +#define MIPSCPU_INT_MB4 6 +#define MIPSCPU_INT_CPUCTR 7 + +/* + * Interrupts 8..39 are used for Atlas interrupt controller interrupts + */ +#define ATLAS_INT_BASE 8 +#define ATLAS_INT_UART (ATLAS_INT_BASE + 0) +#define ATLAS_INT_TIM0 (ATLAS_INT_BASE + 1) +#define ATLAS_INT_RES2 (ATLAS_INT_BASE + 2) +#define ATLAS_INT_RES3 (ATLAS_INT_BASE + 3) +#define ATLAS_INT_RTC (ATLAS_INT_BASE + 4) +#define ATLAS_INT_COREHI (ATLAS_INT_BASE + 5) +#define ATLAS_INT_CORELO (ATLAS_INT_BASE + 6) +#define ATLAS_INT_RES7 (ATLAS_INT_BASE + 7) +#define ATLAS_INT_PCIA (ATLAS_INT_BASE + 8) +#define ATLAS_INT_PCIB (ATLAS_INT_BASE + 9) +#define ATLAS_INT_PCIC (ATLAS_INT_BASE + 10) +#define ATLAS_INT_PCID (ATLAS_INT_BASE + 11) +#define ATLAS_INT_ENUM (ATLAS_INT_BASE + 12) +#define ATLAS_INT_DEG (ATLAS_INT_BASE + 13) +#define ATLAS_INT_ATXFAIL (ATLAS_INT_BASE + 14) +#define ATLAS_INT_INTA (ATLAS_INT_BASE + 15) +#define ATLAS_INT_INTB (ATLAS_INT_BASE + 16) +#define ATLAS_INT_ETH ATLAS_INT_INTB +#define ATLAS_INT_INTC (ATLAS_INT_BASE + 17) +#define ATLAS_INT_SCSI ATLAS_INT_INTC +#define ATLAS_INT_INTD (ATLAS_INT_BASE + 18) +#define ATLAS_INT_SERR (ATLAS_INT_BASE + 19) +#define ATLAS_INT_RES20 (ATLAS_INT_BASE + 20) +#define ATLAS_INT_RES21 (ATLAS_INT_BASE + 21) +#define ATLAS_INT_RES22 (ATLAS_INT_BASE + 22) +#define ATLAS_INT_RES23 (ATLAS_INT_BASE + 23) +#define ATLAS_INT_RES24 (ATLAS_INT_BASE + 24) +#define ATLAS_INT_RES25 (ATLAS_INT_BASE + 25) +#define ATLAS_INT_RES26 (ATLAS_INT_BASE + 26) +#define ATLAS_INT_RES27 (ATLAS_INT_BASE + 27) +#define ATLAS_INT_RES28 (ATLAS_INT_BASE + 28) +#define ATLAS_INT_RES29 (ATLAS_INT_BASE + 29) +#define ATLAS_INT_RES30 (ATLAS_INT_BASE + 30) +#define ATLAS_INT_RES31 (ATLAS_INT_BASE + 31) +#define ATLAS_INT_END (ATLAS_INT_BASE + 31) + +/* + * Interrupts 64..127 are used for Soc-it Classic interrupts + */ +#define MSC01C_INT_BASE 64 + +/* SOC-it Classic interrupt offsets */ +#define MSC01C_INT_TMR 0 +#define MSC01C_INT_PCI 1 + +/* + * Interrupts 64..127 are used for Soc-it EIC interrupts + */ +#define MSC01E_INT_BASE 64 + +/* SOC-it EIC interrupt offsets */ +#define MSC01E_INT_SW0 1 +#define MSC01E_INT_SW1 2 +#define MSC01E_INT_MB0 3 +#define MSC01E_INT_ATLAS MSC01E_INT_MB0 +#define MSC01E_INT_MB1 4 +#define MSC01E_INT_MB2 5 +#define MSC01E_INT_MB3 6 +#define MSC01E_INT_MB4 7 +#define MSC01E_INT_TMR 8 +#define MSC01E_INT_PCI 9 +#define MSC01E_INT_PERFCTR 10 +#define MSC01E_INT_CPUCTR 11 #endif /* !(_MIPS_ATLASINT_H) */
diff --git a/include/asm-mips/mmu_context.h b/include/asm-mips/mmu_context.h index 18b69de..fe065d6 100644 --- a/include/asm-mips/mmu_context.h +++ b/include/asm-mips/mmu_context.h
@@ -262,10 +262,10 @@ /* See comments for similar code above */ prevvpe = dvpe(); oldasid = (read_c0_entryhi() & ASID_MASK); - if(smtc_live_asid[mytlb][oldasid]) { - smtc_live_asid[mytlb][oldasid] &= ~(0x1 << cpu); - if(smtc_live_asid[mytlb][oldasid] == 0) - smtc_flush_tlb_asid(oldasid); + if (smtc_live_asid[mytlb][oldasid]) { + smtc_live_asid[mytlb][oldasid] &= ~(0x1 << cpu); + if(smtc_live_asid[mytlb][oldasid] == 0) + smtc_flush_tlb_asid(oldasid); } /* See comments for similar code above */ write_c0_entryhi((read_c0_entryhi() & ~HW_ASID_MASK)
diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h index 219d359..85b258e 100644 --- a/include/asm-mips/page.h +++ b/include/asm-mips/page.h
@@ -34,6 +34,8 @@ #ifndef __ASSEMBLY__ +#include <asm/cpu-features.h> + extern void clear_page(void * page); extern void copy_page(void * to, void * from); @@ -53,7 +55,7 @@ extern void (*flush_data_cache_page)(unsigned long addr); clear_page(addr); - if (pages_do_alias((unsigned long) addr, vaddr)) + if (pages_do_alias((unsigned long) addr, vaddr & PAGE_MASK)) flush_data_cache_page((unsigned long)addr); } @@ -63,7 +65,8 @@ extern void (*flush_data_cache_page)(unsigned long addr); copy_page(vto, vfrom); - if (pages_do_alias((unsigned long)vto, vaddr)) + if (!cpu_has_ic_fills_f_dc || + pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK)) flush_data_cache_page((unsigned long)vto); } @@ -74,15 +77,17 @@ #ifdef CONFIG_CPU_MIPS32 typedef struct { unsigned long pte_low, pte_high; } pte_t; #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) + #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; }) #else typedef struct { unsigned long long pte; } pte_t; #define pte_val(x) ((x).pte) + #define __pte(x) ((pte_t) { (x) } ) #endif #else typedef struct { unsigned long pte; } pte_t; #define pte_val(x) ((x).pte) -#endif #define __pte(x) ((pte_t) { (x) } ) +#endif /* * For 3-level pagetables we defines these ourselves, for 2-level the
diff --git a/include/asm-mips/pgtable-32.h b/include/asm-mips/pgtable-32.h index 4b26d85..d20f2e9 100644 --- a/include/asm-mips/pgtable-32.h +++ b/include/asm-mips/pgtable-32.h
@@ -156,9 +156,9 @@ #define __pte_offset(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset(dir, address) \ - ((pte_t *) (pmd_page_kernel(*dir)) + __pte_offset(address)) + ((pte_t *) (pmd_page_vaddr(*dir)) + __pte_offset(address)) #define pte_offset_kernel(dir, address) \ - ((pte_t *) pmd_page_kernel(*(dir)) + __pte_offset(address)) + ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address)) #define pte_offset_map(dir, address) \ ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
diff --git a/include/asm-mips/pgtable-64.h b/include/asm-mips/pgtable-64.h index e3db932..d05fb6f 100644 --- a/include/asm-mips/pgtable-64.h +++ b/include/asm-mips/pgtable-64.h
@@ -93,8 +93,12 @@ #define PTRS_PER_PMD ((PAGE_SIZE << PMD_ORDER) / sizeof(pmd_t)) #define PTRS_PER_PTE ((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t)) +#if PGDIR_SIZE >= TASK_SIZE +#define USER_PTRS_PER_PGD (1) +#else #define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE) -#define FIRST_USER_ADDRESS 0 +#endif +#define FIRST_USER_ADDRESS 0UL #define VMALLOC_START MAP_BASE #define VMALLOC_END \ @@ -178,24 +182,26 @@ /* to find an entry in a page-table-directory */ #define pgd_offset(mm,addr) ((mm)->pgd + pgd_index(addr)) -static inline unsigned long pud_page(pud_t pud) +static inline unsigned long pud_page_vaddr(pud_t pud) { return pud_val(pud); } +#define pud_phys(pud) (pud_val(pud) - PAGE_OFFSET) +#define pud_page(pud) (pfn_to_page(pud_phys(pud) >> PAGE_SHIFT)) /* Find an entry in the second-level page table.. */ static inline pmd_t *pmd_offset(pud_t * pud, unsigned long address) { - return (pmd_t *) pud_page(*pud) + pmd_index(address); + return (pmd_t *) pud_page_vaddr(*pud) + pmd_index(address); } /* Find an entry in the third-level page table.. */ #define __pte_offset(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset(dir, address) \ - ((pte_t *) (pmd_page_kernel(*dir)) + __pte_offset(address)) + ((pte_t *) (pmd_page_vaddr(*dir)) + __pte_offset(address)) #define pte_offset_kernel(dir, address) \ - ((pte_t *) pmd_page_kernel(*(dir)) + __pte_offset(address)) + ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address)) #define pte_offset_map(dir, address) \ ((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address)) #define pte_offset_map_nested(dir, address) \
diff --git a/include/asm-mips/pgtable.h b/include/asm-mips/pgtable.h index a36ca1b..1ca4d1e 100644 --- a/include/asm-mips/pgtable.h +++ b/include/asm-mips/pgtable.h
@@ -87,7 +87,7 @@ */ #define pmd_phys(pmd) (pmd_val(pmd) - PAGE_OFFSET) #define pmd_page(pmd) (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT)) -#define pmd_page_kernel(pmd) pmd_val(pmd) +#define pmd_page_vaddr(pmd) pmd_val(pmd) #if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1)
diff --git a/include/asm-mips/ptrace.h b/include/asm-mips/ptrace.h index 4113316..4fb0fc4 100644 --- a/include/asm-mips/ptrace.h +++ b/include/asm-mips/ptrace.h
@@ -10,8 +10,6 @@ #define _ASM_PTRACE_H -#include <asm/isadep.h> - /* 0 - 31 are integer registers, 32 - 63 are fp registers. */ #define FPR_BASE 32 #define PC 64 @@ -73,6 +71,7 @@ #ifdef __KERNEL__ #include <linux/linkage.h> +#include <asm/isadep.h> /* * Does the process account for user or for system time?
diff --git a/include/asm-mips/serial.h b/include/asm-mips/serial.h index 584bd9c..035637c 100644 --- a/include/asm-mips/serial.h +++ b/include/asm-mips/serial.h
@@ -52,9 +52,9 @@ #endif /* - * Both Galileo boards have the same UART mappings. + * Galileo EV64120 evaluation board */ -#if defined (CONFIG_MIPS_EV96100) || defined (CONFIG_MIPS_EV64120) +#ifdef CONFIG_MIPS_EV64120 #include <asm/galileo-boards/ev96100.h> #include <asm/galileo-boards/ev96100int.h> #define EV96100_SERIAL_PORT_DEFNS \
diff --git a/include/asm-mips/sibyte/sb1250_defs.h b/include/asm-mips/sibyte/sb1250_defs.h index 335dbaf..a885491 100644 --- a/include/asm-mips/sibyte/sb1250_defs.h +++ b/include/asm-mips/sibyte/sb1250_defs.h
@@ -212,7 +212,7 @@ * Note: you'll need to define uint32_t and uint64_t in your headers. */ -#if !defined(__ASSEMBLER__) +#if !defined(__ASSEMBLY__) #define _SB_MAKE64(x) ((uint64_t)(x)) #define _SB_MAKE32(x) ((uint32_t)(x)) #else @@ -251,9 +251,9 @@ */ -#if defined(__mips64) && !defined(__ASSEMBLER__) +#if defined(__mips64) && !defined(__ASSEMBLY__) #define SBWRITECSR(csr,val) *((volatile uint64_t *) PHYS_TO_K1(csr)) = (val) #define SBREADCSR(csr) (*((volatile uint64_t *) PHYS_TO_K1(csr))) -#endif /* __ASSEMBLER__ */ +#endif /* __ASSEMBLY__ */ #endif
diff --git a/include/asm-mips/sibyte/sb1250_scd.h b/include/asm-mips/sibyte/sb1250_scd.h index f4178bd..7ed0bb6 100644 --- a/include/asm-mips/sibyte/sb1250_scd.h +++ b/include/asm-mips/sibyte/sb1250_scd.h
@@ -149,7 +149,7 @@ * (For the assembler version, sysrev and dest may be the same register. * Also, it clobbers AT.) */ -#ifdef __ASSEMBLER__ +#ifdef __ASSEMBLY__ #define SYS_SOC_TYPE(dest, sysrev) \ .set push ; \ .set reorder ; \
diff --git a/include/asm-mips/signal.h b/include/asm-mips/signal.h index 87a1dff..8b391a2 100644 --- a/include/asm-mips/signal.h +++ b/include/asm-mips/signal.h
@@ -108,17 +108,8 @@ #define SIG_BLOCK 1 /* for blocking signals */ #define SIG_UNBLOCK 2 /* for unblocking signals */ #define SIG_SETMASK 3 /* for setting the signal mask */ -#define SIG_SETMASK32 256 /* Goodie from SGI for BSD compatibility: - set only the low 32 bit of the sigset. */ -/* Type of a signal handler. */ -typedef void __signalfn_t(int); -typedef __signalfn_t __user *__sighandler_t; - -/* Fake signal functions */ -#define SIG_DFL ((__sighandler_t)0) /* default signal handling */ -#define SIG_IGN ((__sighandler_t)1) /* ignore signal */ -#define SIG_ERR ((__sighandler_t)-1) /* error return from signal */ +#include <asm-generic/signal.h> struct sigaction { unsigned int sa_flags;
diff --git a/include/asm-mips/spinlock.h b/include/asm-mips/spinlock.h index 669b8e3..4c1a1b5 100644 --- a/include/asm-mips/spinlock.h +++ b/include/asm-mips/spinlock.h
@@ -239,7 +239,51 @@ : "memory"); } -#define __raw_read_trylock(lock) generic__raw_read_trylock(lock) +static inline int __raw_read_trylock(raw_rwlock_t *rw) +{ + unsigned int tmp; + int ret; + + if (R10000_LLSC_WAR) { + __asm__ __volatile__( + " .set noreorder # __raw_read_trylock \n" + " li %2, 0 \n" + "1: ll %1, %3 \n" + " bnez %1, 2f \n" + " addu %1, 1 \n" + " sc %1, %0 \n" + " beqzl %1, 1b \n" + " .set reorder \n" +#ifdef CONFIG_SMP + " sync \n" +#endif + " li %2, 1 \n" + "2: \n" + : "=m" (rw->lock), "=&r" (tmp), "=&r" (ret) + : "m" (rw->lock) + : "memory"); + } else { + __asm__ __volatile__( + " .set noreorder # __raw_read_trylock \n" + " li %2, 0 \n" + "1: ll %1, %3 \n" + " bnez %1, 2f \n" + " addu %1, 1 \n" + " sc %1, %0 \n" + " beqz %1, 1b \n" + " .set reorder \n" +#ifdef CONFIG_SMP + " sync \n" +#endif + " li %2, 1 \n" + "2: \n" + : "=m" (rw->lock), "=&r" (tmp), "=&r" (ret) + : "m" (rw->lock) + : "memory"); + } + + return ret; +} static inline int __raw_write_trylock(raw_rwlock_t *rw) { @@ -283,4 +327,5 @@ return ret; } + #endif /* _ASM_SPINLOCK_H */
diff --git a/include/asm-mips/timex.h b/include/asm-mips/timex.h index 98aa737..b80de8e 100644 --- a/include/asm-mips/timex.h +++ b/include/asm-mips/timex.h
@@ -8,6 +8,8 @@ #ifndef _ASM_TIMEX_H #define _ASM_TIMEX_H +#ifdef __KERNEL__ + #include <asm/mipsregs.h> /* @@ -51,4 +53,6 @@ return read_c0_count(); } +#endif /* __KERNEL__ */ + #endif /* _ASM_TIMEX_H */
diff --git a/include/asm-mips/unistd.h b/include/asm-mips/unistd.h index 610ccb8..c391429 100644 --- a/include/asm-mips/unistd.h +++ b/include/asm-mips/unistd.h
@@ -313,7 +313,7 @@ #define __NR_mknodat (__NR_Linux + 290) #define __NR_fchownat (__NR_Linux + 291) #define __NR_futimesat (__NR_Linux + 292) -#define __NR_fstatat (__NR_Linux + 293) +#define __NR_fstatat64 (__NR_Linux + 293) #define __NR_unlinkat (__NR_Linux + 294) #define __NR_renameat (__NR_Linux + 295) #define __NR_linkat (__NR_Linux + 296) @@ -329,16 +329,18 @@ #define __NR_tee (__NR_Linux + 306) #define __NR_vmsplice (__NR_Linux + 307) #define __NR_move_pages (__NR_Linux + 308) +#define __NR_set_robust_list (__NR_Linux + 309) +#define __NR_get_robust_list (__NR_Linux + 310) /* * Offset of the last Linux o32 flavoured syscall */ -#define __NR_Linux_syscalls 308 +#define __NR_Linux_syscalls 310 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ #define __NR_O32_Linux 4000 -#define __NR_O32_Linux_syscalls 308 +#define __NR_O32_Linux_syscalls 310 #if _MIPS_SIM == _MIPS_SIM_ABI64 @@ -598,7 +600,7 @@ #define __NR_mknodat (__NR_Linux + 249) #define __NR_fchownat (__NR_Linux + 250) #define __NR_futimesat (__NR_Linux + 251) -#define __NR_fstatat (__NR_Linux + 252) +#define __NR_newfstatat (__NR_Linux + 252) #define __NR_unlinkat (__NR_Linux + 253) #define __NR_renameat (__NR_Linux + 254) #define __NR_linkat (__NR_Linux + 255) @@ -614,16 +616,18 @@ #define __NR_tee (__NR_Linux + 265) #define __NR_vmsplice (__NR_Linux + 266) #define __NR_move_pages (__NR_Linux + 267) +#define __NR_set_robust_list (__NR_Linux + 268) +#define __NR_get_robust_list (__NR_Linux + 269) /* * Offset of the last Linux 64-bit flavoured syscall */ -#define __NR_Linux_syscalls 267 +#define __NR_Linux_syscalls 269 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */ #define __NR_64_Linux 5000 -#define __NR_64_Linux_syscalls 267 +#define __NR_64_Linux_syscalls 269 #if _MIPS_SIM == _MIPS_SIM_NABI32 @@ -887,7 +891,7 @@ #define __NR_mknodat (__NR_Linux + 253) #define __NR_fchownat (__NR_Linux + 254) #define __NR_futimesat (__NR_Linux + 255) -#define __NR_fstatat (__NR_Linux + 256) +#define __NR_newfstatat (__NR_Linux + 256) #define __NR_unlinkat (__NR_Linux + 257) #define __NR_renameat (__NR_Linux + 258) #define __NR_linkat (__NR_Linux + 259) @@ -903,16 +907,18 @@ #define __NR_tee (__NR_Linux + 269) #define __NR_vmsplice (__NR_Linux + 270) #define __NR_move_pages (__NR_Linux + 271) +#define __NR_set_robust_list (__NR_Linux + 272) +#define __NR_get_robust_list (__NR_Linux + 273) /* * Offset of the last N32 flavoured syscall */ -#define __NR_Linux_syscalls 271 +#define __NR_Linux_syscalls 273 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */ #define __NR_N32_Linux 6000 -#define __NR_N32_Linux_syscalls 271 +#define __NR_N32_Linux_syscalls 273 #ifdef __KERNEL__
diff --git a/include/asm-mips/user.h b/include/asm-mips/user.h index 89bf8b4..61f2a09 100644 --- a/include/asm-mips/user.h +++ b/include/asm-mips/user.h
@@ -8,6 +8,8 @@ #ifndef _ASM_USER_H #define _ASM_USER_H +#ifdef __KERNEL__ + #include <asm/page.h> #include <asm/reg.h> @@ -55,4 +57,6 @@ #define HOST_DATA_START_ADDR (u.start_data) #define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) +#endif /* __KERNEL__ */ + #endif /* _ASM_USER_H */
diff --git a/include/asm-parisc/pgtable.h b/include/asm-parisc/pgtable.h index 5066c54..c0b61e0 100644 --- a/include/asm-parisc/pgtable.h +++ b/include/asm-parisc/pgtable.h
@@ -303,7 +303,8 @@ #if PT_NLEVELS == 3 -#define pgd_page(pgd) ((unsigned long) __va(pgd_address(pgd))) +#define pgd_page_vaddr(pgd) ((unsigned long) __va(pgd_address(pgd))) +#define pgd_page(pgd) virt_to_page((void *)pgd_page_vaddr(pgd)) /* For 64 bit we have three level tables */ @@ -382,7 +383,7 @@ #define pte_page(pte) (pfn_to_page(pte_pfn(pte))) -#define pmd_page_kernel(pmd) ((unsigned long) __va(pmd_address(pmd))) +#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_address(pmd))) #define __pmd_page(pmd) ((unsigned long) __va(pmd_address(pmd))) #define pmd_page(pmd) virt_to_page((void *)__pmd_page(pmd)) @@ -400,7 +401,7 @@ #if PT_NLEVELS == 3 #define pmd_offset(dir,address) \ -((pmd_t *) pgd_page(*(dir)) + (((address)>>PMD_SHIFT) & (PTRS_PER_PMD-1))) +((pmd_t *) pgd_page_vaddr(*(dir)) + (((address)>>PMD_SHIFT) & (PTRS_PER_PMD-1))) #else #define pmd_offset(dir,addr) ((pmd_t *) dir) #endif @@ -408,7 +409,7 @@ /* Find an entry in the third-level page table.. */ #define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE-1)) #define pte_offset_kernel(pmd, address) \ - ((pte_t *) pmd_page_kernel(*(pmd)) + pte_index(address)) + ((pte_t *) pmd_page_vaddr(*(pmd)) + pte_index(address)) #define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address) #define pte_offset_map_nested(pmd, address) pte_offset_kernel(pmd, address) #define pte_unmap(pte) do { } while (0)
diff --git a/include/asm-powerpc/libata-portmap.h b/include/asm-powerpc/libata-portmap.h deleted file mode 100644 index 75484ef..0000000 --- a/include/asm-powerpc/libata-portmap.h +++ /dev/null
@@ -1 +0,0 @@ -#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-powerpc/pgtable-4k.h b/include/asm-powerpc/pgtable-4k.h index e703615..345d9b0 100644 --- a/include/asm-powerpc/pgtable-4k.h +++ b/include/asm-powerpc/pgtable-4k.h
@@ -88,10 +88,11 @@ #define pgd_bad(pgd) (pgd_val(pgd) == 0) #define pgd_present(pgd) (pgd_val(pgd) != 0) #define pgd_clear(pgdp) (pgd_val(*(pgdp)) = 0) -#define pgd_page(pgd) (pgd_val(pgd) & ~PGD_MASKED_BITS) +#define pgd_page_vaddr(pgd) (pgd_val(pgd) & ~PGD_MASKED_BITS) +#define pgd_page(pgd) virt_to_page(pgd_page_vaddr(pgd)) #define pud_offset(pgdp, addr) \ - (((pud_t *) pgd_page(*(pgdp))) + \ + (((pud_t *) pgd_page_vaddr(*(pgdp))) + \ (((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1))) #define pud_ERROR(e) \
diff --git a/include/asm-powerpc/pgtable.h b/include/asm-powerpc/pgtable.h index 8dbf5ad..10f52743f 100644 --- a/include/asm-powerpc/pgtable.h +++ b/include/asm-powerpc/pgtable.h
@@ -196,8 +196,8 @@ || (pmd_val(pmd) & PMD_BAD_BITS)) #define pmd_present(pmd) (pmd_val(pmd) != 0) #define pmd_clear(pmdp) (pmd_val(*(pmdp)) = 0) -#define pmd_page_kernel(pmd) (pmd_val(pmd) & ~PMD_MASKED_BITS) -#define pmd_page(pmd) virt_to_page(pmd_page_kernel(pmd)) +#define pmd_page_vaddr(pmd) (pmd_val(pmd) & ~PMD_MASKED_BITS) +#define pmd_page(pmd) virt_to_page(pmd_page_vaddr(pmd)) #define pud_set(pudp, pudval) (pud_val(*(pudp)) = (pudval)) #define pud_none(pud) (!pud_val(pud)) @@ -205,7 +205,8 @@ || (pud_val(pud) & PUD_BAD_BITS)) #define pud_present(pud) (pud_val(pud) != 0) #define pud_clear(pudp) (pud_val(*(pudp)) = 0) -#define pud_page(pud) (pud_val(pud) & ~PUD_MASKED_BITS) +#define pud_page_vaddr(pud) (pud_val(pud) & ~PUD_MASKED_BITS) +#define pud_page(pud) virt_to_page(pud_page_vaddr(pud)) #define pgd_set(pgdp, pudp) ({pgd_val(*(pgdp)) = (unsigned long)(pudp);}) @@ -219,10 +220,10 @@ #define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) #define pmd_offset(pudp,addr) \ - (((pmd_t *) pud_page(*(pudp))) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))) + (((pmd_t *) pud_page_vaddr(*(pudp))) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))) #define pte_offset_kernel(dir,addr) \ - (((pte_t *) pmd_page_kernel(*(dir))) + (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))) + (((pte_t *) pmd_page_vaddr(*(dir))) + (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))) #define pte_offset_map(dir,addr) pte_offset_kernel((dir), (addr)) #define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir), (addr))
diff --git a/include/asm-ppc/pgtable.h b/include/asm-ppc/pgtable.h index 51fa7c6..b1fdbf4 100644 --- a/include/asm-ppc/pgtable.h +++ b/include/asm-ppc/pgtable.h
@@ -526,7 +526,7 @@ static inline int pgd_present(pgd_t pgd) { return 1; } #define pgd_clear(xp) do { } while (0) -#define pgd_page(pgd) \ +#define pgd_page_vaddr(pgd) \ ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK)) /* @@ -720,12 +720,12 @@ * of the pte page. -- paulus */ #ifndef CONFIG_BOOKE -#define pmd_page_kernel(pmd) \ +#define pmd_page_vaddr(pmd) \ ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) #define pmd_page(pmd) \ (mem_map + (pmd_val(pmd) >> PAGE_SHIFT)) #else -#define pmd_page_kernel(pmd) \ +#define pmd_page_vaddr(pmd) \ ((unsigned long) (pmd_val(pmd) & PAGE_MASK)) #define pmd_page(pmd) \ (mem_map + (__pa(pmd_val(pmd)) >> PAGE_SHIFT)) @@ -748,7 +748,7 @@ #define pte_index(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir, addr) \ - ((pte_t *) pmd_page_kernel(*(dir)) + pte_index(addr)) + ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(addr)) #define pte_offset_map(dir, addr) \ ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE0) + pte_index(addr)) #define pte_offset_map_nested(dir, addr) \
diff --git a/include/asm-s390/percpu.h b/include/asm-s390/percpu.h index 28b3517..495ad99 100644 --- a/include/asm-s390/percpu.h +++ b/include/asm-s390/percpu.h
@@ -15,18 +15,20 @@ */ #if defined(__s390x__) && defined(MODULE) -#define __reloc_hide(var,offset) \ - (*({ unsigned long *__ptr; \ - asm ( "larl %0,per_cpu__"#var"@GOTENT" \ - : "=a" (__ptr) : "X" (per_cpu__##var) ); \ - (typeof(&per_cpu__##var))((*__ptr) + (offset)); })) +#define __reloc_hide(var,offset) (*({ \ + extern int simple_indentifier_##var(void); \ + unsigned long *__ptr; \ + asm ( "larl %0,per_cpu__"#var"@GOTENT" \ + : "=a" (__ptr) : "X" (per_cpu__##var) ); \ + (typeof(&per_cpu__##var))((*__ptr) + (offset)); })) #else -#define __reloc_hide(var, offset) \ - (*({ unsigned long __ptr; \ - asm ( "" : "=a" (__ptr) : "0" (&per_cpu__##var) ); \ - (typeof(&per_cpu__##var)) (__ptr + (offset)); })) +#define __reloc_hide(var, offset) (*({ \ + extern int simple_indentifier_##var(void); \ + unsigned long __ptr; \ + asm ( "" : "=a" (__ptr) : "0" (&per_cpu__##var) ); \ + (typeof(&per_cpu__##var)) (__ptr + (offset)); })) #endif
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h index 1a07028..e965309 100644 --- a/include/asm-s390/pgtable.h +++ b/include/asm-s390/pgtable.h
@@ -664,11 +664,13 @@ #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT) #define pte_page(x) pfn_to_page(pte_pfn(x)) -#define pmd_page_kernel(pmd) (pmd_val(pmd) & PAGE_MASK) +#define pmd_page_vaddr(pmd) (pmd_val(pmd) & PAGE_MASK) #define pmd_page(pmd) (mem_map+(pmd_val(pmd) >> PAGE_SHIFT)) -#define pgd_page_kernel(pgd) (pgd_val(pgd) & PAGE_MASK) +#define pgd_page_vaddr(pgd) (pgd_val(pgd) & PAGE_MASK) + +#define pgd_page(pgd) (mem_map+(pgd_val(pgd) >> PAGE_SHIFT)) /* to find an entry in a page-table-directory */ #define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) @@ -690,14 +692,14 @@ /* Find an entry in the second-level page table.. */ #define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1)) #define pmd_offset(dir,addr) \ - ((pmd_t *) pgd_page_kernel(*(dir)) + pmd_index(addr)) + ((pmd_t *) pgd_page_vaddr(*(dir)) + pmd_index(addr)) #endif /* __s390x__ */ /* Find an entry in the third-level page table.. */ #define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE-1)) #define pte_offset_kernel(pmd, address) \ - ((pte_t *) pmd_page_kernel(*(pmd)) + pte_index(address)) + ((pte_t *) pmd_page_vaddr(*(pmd)) + pte_index(address)) #define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address) #define pte_offset_map_nested(pmd, address) pte_offset_kernel(pmd, address) #define pte_unmap(pte) do { } while (0)
diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h index a3a4e5f..578c220 100644 --- a/include/asm-s390/processor.h +++ b/include/asm-s390/processor.h
@@ -337,6 +337,8 @@ int register_idle_notifier(struct notifier_block *nb); int unregister_idle_notifier(struct notifier_block *nb); +#define ARCH_LOW_ADDRESS_LIMIT 0x7fffffffUL + #endif /*
diff --git a/include/asm-s390/unistd.h b/include/asm-s390/unistd.h index 02b942d..d49c54c 100644 --- a/include/asm-s390/unistd.h +++ b/include/asm-s390/unistd.h
@@ -342,9 +342,11 @@ #ifdef __KERNEL__ +#include <linux/err.h> + #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-4095)) {\ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ errno = -(res); \ res = -1; \ } \
diff --git a/include/asm-sh/addrspace.h b/include/asm-sh/addrspace.h index 720afc1..b860218 100644 --- a/include/asm-sh/addrspace.h +++ b/include/asm-sh/addrspace.h
@@ -14,11 +14,19 @@ #include <asm/cpu/addrspace.h> /* Memory segments (32bit Privileged mode addresses) */ +#ifndef CONFIG_CPU_SH2A #define P0SEG 0x00000000 #define P1SEG 0x80000000 #define P2SEG 0xa0000000 #define P3SEG 0xc0000000 #define P4SEG 0xe0000000 +#else +#define P0SEG 0x00000000 +#define P1SEG 0x00000000 +#define P2SEG 0x20000000 +#define P3SEG 0x00000000 +#define P4SEG 0x80000000 +#endif /* Returns the privileged segment base of a given address */ #define PXSEG(a) (((unsigned long)(a)) & 0xe0000000)
diff --git a/include/asm-sh/adx/io.h b/include/asm-sh/adx/io.h deleted file mode 100644 index ab1225f..0000000 --- a/include/asm-sh/adx/io.h +++ /dev/null
@@ -1,86 +0,0 @@ -/* - * include/asm-sh/io_adx.h - * - * Copyright (C) 2001 A&D Co., Ltd. - * - * This file may be copied or modified under the terms of the GNU - * General Public License. See linux/COPYING for more information. - * - * IO functions for an A&D ADX Board - */ - -#ifndef _ASM_SH_IO_ADX_H -#define _ASM_SH_IO_ADX_H - -#include <asm/io_generic.h> - -extern unsigned char adx_inb(unsigned long port); -extern unsigned short adx_inw(unsigned long port); -extern unsigned int adx_inl(unsigned long port); - -extern void adx_outb(unsigned char value, unsigned long port); -extern void adx_outw(unsigned short value, unsigned long port); -extern void adx_outl(unsigned int value, unsigned long port); - -extern unsigned char adx_inb_p(unsigned long port); -extern void adx_outb_p(unsigned char value, unsigned long port); - -extern void adx_insb(unsigned long port, void *addr, unsigned long count); -extern void adx_insw(unsigned long port, void *addr, unsigned long count); -extern void adx_insl(unsigned long port, void *addr, unsigned long count); -extern void adx_outsb(unsigned long port, const void *addr, unsigned long count); -extern void adx_outsw(unsigned long port, const void *addr, unsigned long count); -extern void adx_outsl(unsigned long port, const void *addr, unsigned long count); - -extern unsigned char adx_readb(unsigned long addr); -extern unsigned short adx_readw(unsigned long addr); -extern unsigned int adx_readl(unsigned long addr); -extern void adx_writeb(unsigned char b, unsigned long addr); -extern void adx_writew(unsigned short b, unsigned long addr); -extern void adx_writel(unsigned int b, unsigned long addr); - -extern void * adx_ioremap(unsigned long offset, unsigned long size); -extern void adx_iounmap(void *addr); - -extern unsigned long adx_isa_port2addr(unsigned long offset); - -extern void setup_adx(void); -extern void init_adx_IRQ(void); - -#ifdef __WANT_IO_DEF - -#define __inb adx_inb -#define __inw adx_inw -#define __inl adx_inl -#define __outb adx_outb -#define __outw adx_outw -#define __outl adx_outl - -#define __inb_p adx_inb_p -#define __inw_p adx_inw -#define __inl_p adx_inl -#define __outb_p adx_outb_p -#define __outw_p adx_outw -#define __outl_p adx_outl - -#define __insb adx_insb -#define __insw adx_insw -#define __insl adx_insl -#define __outsb adx_outsb -#define __outsw adx_outsw -#define __outsl adx_outsl - -#define __readb adx_readb -#define __readw adx_readw -#define __readl adx_readl -#define __writeb adx_writeb -#define __writew adx_writew -#define __writel adx_writel - -#define __isa_port2addr adx_isa_port2addr -#define __ioremap adx_ioremap -#define __iounmap adx_iounmap - -#endif - -#endif /* _ASM_SH_IO_AANDD_H */
diff --git a/include/asm-sh/apm.h b/include/asm-sh/apm.h new file mode 100644 index 0000000..8b091e9 --- /dev/null +++ b/include/asm-sh/apm.h
@@ -0,0 +1,46 @@ +/* + * Copyright 2006 (c) Andriy Skulysh <askulysh@gmail.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + */ + +#ifndef __ASM_SH_APM_H +#define __ASM_SH_APM_H + +#define APM_AC_OFFLINE 0 +#define APM_AC_ONLINE 1 +#define APM_AC_BACKUP 2 +#define APM_AC_UNKNOWN 0xff + +#define APM_BATTERY_STATUS_HIGH 0 +#define APM_BATTERY_STATUS_LOW 1 +#define APM_BATTERY_STATUS_CRITICAL 2 +#define APM_BATTERY_STATUS_CHARGING 3 +#define APM_BATTERY_STATUS_NOT_PRESENT 4 +#define APM_BATTERY_STATUS_UNKNOWN 0xff + +#define APM_BATTERY_LIFE_UNKNOWN 0xFFFF +#define APM_BATTERY_LIFE_MINUTES 0x8000 +#define APM_BATTERY_LIFE_VALUE_MASK 0x7FFF + +#define APM_BATTERY_FLAG_HIGH (1 << 0) +#define APM_BATTERY_FLAG_LOW (1 << 1) +#define APM_BATTERY_FLAG_CRITICAL (1 << 2) +#define APM_BATTERY_FLAG_CHARGING (1 << 3) +#define APM_BATTERY_FLAG_NOT_PRESENT (1 << 7) +#define APM_BATTERY_FLAG_UNKNOWN 0xff + +#define APM_UNITS_MINS 0 +#define APM_UNITS_SECS 1 +#define APM_UNITS_UNKNOWN -1 + + +extern int (*apm_get_info)(char *buf, char **start, off_t fpos, int length); +extern int apm_suspended; + +void apm_queue_event(apm_event_t event); + +#endif
diff --git a/include/asm-sh/atomic.h b/include/asm-sh/atomic.h index fb627de..8bdc1ba 100644 --- a/include/asm-sh/atomic.h +++ b/include/asm-sh/atomic.h
@@ -14,6 +14,7 @@ #define atomic_read(v) ((v)->counter) #define atomic_set(v,i) ((v)->counter = (i)) +#include <linux/compiler.h> #include <asm/system.h> /* @@ -21,49 +22,110 @@ * forward to code at the end of this object's .text section, then * branch back to restart the operation. */ - -static __inline__ void atomic_add(int i, atomic_t * v) +static inline void atomic_add(int i, atomic_t *v) { +#ifdef CONFIG_CPU_SH4A + unsigned long tmp; + + __asm__ __volatile__ ( +"1: movli.l @%3, %0 ! atomic_add \n" +" add %2, %0 \n" +" movco.l %0, @%3 \n" +" bf 1b \n" + : "=&z" (tmp), "=r" (&v->counter) + : "r" (i), "r" (&v->counter) + : "t"); +#else unsigned long flags; local_irq_save(flags); *(long *)v += i; local_irq_restore(flags); +#endif } -static __inline__ void atomic_sub(int i, atomic_t *v) +static inline void atomic_sub(int i, atomic_t *v) { +#ifdef CONFIG_CPU_SH4A + unsigned long tmp; + + __asm__ __volatile__ ( +"1: movli.l @%3, %0 ! atomic_sub \n" +" sub %2, %0 \n" +" movco.l %0, @%3 \n" +" bf 1b \n" + : "=&z" (tmp), "=r" (&v->counter) + : "r" (i), "r" (&v->counter) + : "t"); +#else unsigned long flags; local_irq_save(flags); *(long *)v -= i; local_irq_restore(flags); +#endif } -static __inline__ int atomic_add_return(int i, atomic_t * v) +/* + * SH-4A note: + * + * We basically get atomic_xxx_return() for free compared with + * atomic_xxx(). movli.l/movco.l require r0 due to the instruction + * encoding, so the retval is automatically set without having to + * do any special work. + */ +static inline int atomic_add_return(int i, atomic_t *v) { - unsigned long temp, flags; + unsigned long temp; + +#ifdef CONFIG_CPU_SH4A + __asm__ __volatile__ ( +"1: movli.l @%3, %0 ! atomic_add_return \n" +" add %2, %0 \n" +" movco.l %0, @%3 \n" +" bf 1b \n" +" synco \n" + : "=&z" (temp), "=r" (&v->counter) + : "r" (i), "r" (&v->counter) + : "t"); +#else + unsigned long flags; local_irq_save(flags); temp = *(long *)v; temp += i; *(long *)v = temp; local_irq_restore(flags); +#endif return temp; } #define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) -static __inline__ int atomic_sub_return(int i, atomic_t * v) +static inline int atomic_sub_return(int i, atomic_t *v) { - unsigned long temp, flags; + unsigned long temp; + +#ifdef CONFIG_CPU_SH4A + __asm__ __volatile__ ( +"1: movli.l @%3, %0 ! atomic_sub_return \n" +" sub %2, %0 \n" +" movco.l %0, @%3 \n" +" bf 1b \n" +" synco \n" + : "=&z" (temp), "=r" (&v->counter) + : "r" (i), "r" (&v->counter) + : "t"); +#else + unsigned long flags; local_irq_save(flags); temp = *(long *)v; temp -= i; *(long *)v = temp; local_irq_restore(flags); +#endif return temp; } @@ -118,22 +180,48 @@ } #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) -static __inline__ void atomic_clear_mask(unsigned int mask, atomic_t *v) +static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) { +#ifdef CONFIG_CPU_SH4A + unsigned long tmp; + + __asm__ __volatile__ ( +"1: movli.l @%3, %0 ! atomic_clear_mask \n" +" and %2, %0 \n" +" movco.l %0, @%3 \n" +" bf 1b \n" + : "=&z" (tmp), "=r" (&v->counter) + : "r" (~mask), "r" (&v->counter) + : "t"); +#else unsigned long flags; local_irq_save(flags); *(long *)v &= ~mask; local_irq_restore(flags); +#endif } -static __inline__ void atomic_set_mask(unsigned int mask, atomic_t *v) +static inline void atomic_set_mask(unsigned int mask, atomic_t *v) { +#ifdef CONFIG_CPU_SH4A + unsigned long tmp; + + __asm__ __volatile__ ( +"1: movli.l @%3, %0 ! atomic_set_mask \n" +" or %2, %0 \n" +" movco.l %0, @%3 \n" +" bf 1b \n" + : "=&z" (tmp), "=r" (&v->counter) + : "r" (mask), "r" (&v->counter) + : "t"); +#else unsigned long flags; local_irq_save(flags); *(long *)v |= mask; local_irq_restore(flags); +#endif } /* Atomic operations are already serializing on SH */
diff --git a/include/asm-sh/auxvec.h b/include/asm-sh/auxvec.h index fc21e4d..1b6916e 100644 --- a/include/asm-sh/auxvec.h +++ b/include/asm-sh/auxvec.h
@@ -1,4 +1,18 @@ #ifndef __ASM_SH_AUXVEC_H #define __ASM_SH_AUXVEC_H +/* + * Architecture-neutral AT_ values in 0-17, leave some room + * for more of them. + */ + +#ifdef CONFIG_VSYSCALL +/* + * Only define this in the vsyscall case, the entry point to + * the vsyscall page gets placed here. The kernel will attempt + * to build a gate VMA we don't care about otherwise.. + */ +#define AT_SYSINFO_EHDR 33 +#endif + #endif /* __ASM_SH_AUXVEC_H */
diff --git a/include/asm-sh/bitops.h b/include/asm-sh/bitops.h index e34f825..1c16792 100644 --- a/include/asm-sh/bitops.h +++ b/include/asm-sh/bitops.h
@@ -6,7 +6,7 @@ /* For __swab32 */ #include <asm/byteorder.h> -static __inline__ void set_bit(int nr, volatile void * addr) +static inline void set_bit(int nr, volatile void * addr) { int mask; volatile unsigned int *a = addr; @@ -24,7 +24,7 @@ */ #define smp_mb__before_clear_bit() barrier() #define smp_mb__after_clear_bit() barrier() -static __inline__ void clear_bit(int nr, volatile void * addr) +static inline void clear_bit(int nr, volatile void * addr) { int mask; volatile unsigned int *a = addr; @@ -37,7 +37,7 @@ local_irq_restore(flags); } -static __inline__ void change_bit(int nr, volatile void * addr) +static inline void change_bit(int nr, volatile void * addr) { int mask; volatile unsigned int *a = addr; @@ -50,7 +50,7 @@ local_irq_restore(flags); } -static __inline__ int test_and_set_bit(int nr, volatile void * addr) +static inline int test_and_set_bit(int nr, volatile void * addr) { int mask, retval; volatile unsigned int *a = addr; @@ -66,7 +66,7 @@ return retval; } -static __inline__ int test_and_clear_bit(int nr, volatile void * addr) +static inline int test_and_clear_bit(int nr, volatile void * addr) { int mask, retval; volatile unsigned int *a = addr; @@ -82,7 +82,7 @@ return retval; } -static __inline__ int test_and_change_bit(int nr, volatile void * addr) +static inline int test_and_change_bit(int nr, volatile void * addr) { int mask, retval; volatile unsigned int *a = addr; @@ -100,7 +100,7 @@ #include <asm-generic/bitops/non-atomic.h> -static __inline__ unsigned long ffz(unsigned long word) +static inline unsigned long ffz(unsigned long word) { unsigned long result; @@ -120,7 +120,7 @@ * * Undefined if no bit exists, so code should check against 0 first. */ -static __inline__ unsigned long __ffs(unsigned long word) +static inline unsigned long __ffs(unsigned long word) { unsigned long result;
diff --git a/include/asm-sh/bugs.h b/include/asm-sh/bugs.h index a6de3d0..b4000c8 100644 --- a/include/asm-sh/bugs.h +++ b/include/asm-sh/bugs.h
@@ -32,6 +32,10 @@ case CPU_SH7750 ... CPU_SH4_501: *p++ = '4'; break; + case CPU_SH7770 ... CPU_SH7781: + *p++ = '4'; + *p++ = 'a'; + break; default: *p++ = '?'; *p++ = '!';
diff --git a/include/asm-sh/cache.h b/include/asm-sh/cache.h index 656fdfe..e3a180c 100644 --- a/include/asm-sh/cache.h +++ b/include/asm-sh/cache.h
@@ -10,7 +10,6 @@ #ifdef __KERNEL__ #include <asm/cpu/cache.h> -#include <asm/cpu/cacheflush.h> #define SH_CACHE_VALID 1 #define SH_CACHE_UPDATED 2 @@ -23,24 +22,31 @@ #define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1)) struct cache_info { - unsigned int ways; - unsigned int sets; - unsigned int linesz; + unsigned int ways; /* Number of cache ways */ + unsigned int sets; /* Number of cache sets */ + unsigned int linesz; /* Cache line size (bytes) */ + unsigned int way_size; /* sets * line size */ + + /* + * way_incr is the address offset for accessing the next way + * in memory mapped cache array ops. + */ unsigned int way_incr; - unsigned int entry_shift; unsigned int entry_mask; + /* + * Compute a mask which selects the address bits which overlap between + * 1. those used to select the cache set during indexing + * 2. those in the physical page number. + */ + unsigned int alias_mask; + + unsigned int n_aliases; /* Number of aliases */ + unsigned long flags; }; -/* Flush (write-back only) a region (smaller than a page) */ -extern void __flush_wback_region(void *start, int size); -/* Flush (write-back & invalidate) a region (smaller than a page) */ -extern void __flush_purge_region(void *start, int size); -/* Flush (invalidate only) a region (smaller than a page) */ -extern void __flush_invalidate_region(void *start, int size); - #endif /* __KERNEL__ */ #endif /* __ASM_SH_CACHE_H */
diff --git a/include/asm-sh/cacheflush.h b/include/asm-sh/cacheflush.h index 9dfb33e..07f62ec 100644 --- a/include/asm-sh/cacheflush.h +++ b/include/asm-sh/cacheflush.h
@@ -2,6 +2,7 @@ #define __ASM_SH_CACHEFLUSH_H #ifdef __KERNEL__ +#include <linux/mm.h> #include <asm/cpu/cacheflush.h> /* Flush (write-back only) a region (smaller than a page) */ @@ -27,5 +28,7 @@ memcpy(dst, src, len); \ } while (0) +#define HAVE_ARCH_UNMAPPED_AREA + #endif /* __KERNEL__ */ #endif /* __ASM_SH_CACHEFLUSH_H */
diff --git a/include/asm-sh/cat68701/io.h b/include/asm-sh/cat68701/io.h deleted file mode 100644 index 753b846..0000000 --- a/include/asm-sh/cat68701/io.h +++ /dev/null
@@ -1,22 +0,0 @@ -/* - * include/asm-sh/io_cat68701.h - * - * Copyright 2000 Stuart Menefy (stuart.menefy@st.com) - * 2001 Yutarou Ebihar (ebihara@si-linux.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * IO functions for an AONE Corp. CAT-68701 SH7708 Borad - */ - -#ifndef _ASM_SH_IO_CAT68701_H -#define _ASM_SH_IO_CAT68701_H - -extern unsigned long cat68701_isa_port2addr(unsigned long offset); -extern int cat68701_irq_demux(int irq); - -extern void init_cat68701_IRQ(void); -extern void heartbeat_cat68701(void); - -#endif /* _ASM_SH_IO_CAT68701_H */
diff --git a/include/asm-sh/checksum.h b/include/asm-sh/checksum.h index fa03b30..08168af 100644 --- a/include/asm-sh/checksum.h +++ b/include/asm-sh/checksum.h
@@ -159,6 +159,7 @@ } #define _HAVE_ARCH_IPV6_CSUM +#ifdef CONFIG_IPV6 static __inline__ unsigned short int csum_ipv6_magic(struct in6_addr *saddr, struct in6_addr *daddr, __u32 len, @@ -194,6 +195,7 @@ return csum_fold(sum); } +#endif /* * Copy and checksum to user
diff --git a/include/asm-sh/cpu-features.h b/include/asm-sh/cpu-features.h new file mode 100644 index 0000000..4bccd7c0 --- /dev/null +++ b/include/asm-sh/cpu-features.h
@@ -0,0 +1,24 @@ +#ifndef __ASM_SH_CPU_FEATURES_H +#define __ASM_SH_CPU_FEATURES_H + +/* + * Processor flags + * + * Note: When adding a new flag, keep cpu_flags[] in + * arch/sh/kernel/setup.c in sync so symbolic name + * mapping of the processor flags has a chance of being + * reasonably accurate. + * + * These flags are also available through the ELF + * auxiliary vector as AT_HWCAP. + */ +#define CPU_HAS_FPU 0x0001 /* Hardware FPU support */ +#define CPU_HAS_P2_FLUSH_BUG 0x0002 /* Need to flush the cache in P2 area */ +#define CPU_HAS_MMU_PAGE_ASSOC 0x0004 /* SH3: TLB way selection bit support */ +#define CPU_HAS_DSP 0x0008 /* SH-DSP: DSP support */ +#define CPU_HAS_PERF_COUNTER 0x0010 /* Hardware performance counters */ +#define CPU_HAS_PTEA 0x0020 /* PTEA register */ +#define CPU_HAS_LLSC 0x0040 /* movli.l/movco.l */ +#define CPU_HAS_L2_CACHE 0x0080 /* Secondary cache / URAM */ + +#endif /* __ASM_SH_CPU_FEATURES_H */
diff --git a/include/asm-sh/cpu-sh2/shmparam.h b/include/asm-sh/cpu-sh2/shmparam.h deleted file mode 100644 index 817c182..0000000 --- a/include/asm-sh/cpu-sh2/shmparam.h +++ /dev/null
@@ -1,16 +0,0 @@ -/* - * include/asm-sh/cpu-sh2/shmparam.h - * - * Copyright (C) 2003 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#ifndef __ASM_CPU_SH2_SHMPARAM_H -#define __ASM_CPU_SH2_SHMPARAM_H - -#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ - -#endif /* __ASM_CPU_SH2_SHMPARAM_H */ -
diff --git a/include/asm-sh/cpu-sh3/cache.h b/include/asm-sh/cpu-sh3/cache.h index 406aa8d..ffe08d2 100644 --- a/include/asm-sh/cpu-sh3/cache.h +++ b/include/asm-sh/cpu-sh3/cache.h
@@ -26,12 +26,10 @@ #define CCR_CACHE_ENABLE CCR_CACHE_CE #define CCR_CACHE_INVALIDATE CCR_CACHE_CF -#if defined(CONFIG_CPU_SUBTYPE_SH7705) +#if defined(CONFIG_CPU_SUBTYPE_SH7705) || defined(CONFIG_CPU_SUBTYPE_SH7710) #define CCR3 0xa40000b4 #define CCR_CACHE_16KB 0x00010000 #define CCR_CACHE_32KB 0x00020000 #endif - #endif /* __ASM_CPU_SH3_CACHE_H */ -
diff --git a/include/asm-sh/cpu-sh3/cacheflush.h b/include/asm-sh/cpu-sh3/cacheflush.h index f51aed0..03fde97 100644 --- a/include/asm-sh/cpu-sh3/cacheflush.h +++ b/include/asm-sh/cpu-sh3/cacheflush.h
@@ -10,7 +10,7 @@ #ifndef __ASM_CPU_SH3_CACHEFLUSH_H #define __ASM_CPU_SH3_CACHEFLUSH_H -/* +/* * Cache flushing: * * - flush_cache_all() flushes entire cache @@ -35,53 +35,33 @@ /* 32KB cache, 4kb PAGE sizes need to check bit 12 */ #define CACHE_ALIAS 0x00001000 -struct page; -struct mm_struct; -struct vm_area_struct; +#define PG_mapped PG_arch_1 -extern void flush_cache_all(void); -extern void flush_cache_mm(struct mm_struct *mm); -extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, +void flush_cache_all(void); +void flush_cache_mm(struct mm_struct *mm); +void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); -extern void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn); -extern void flush_dcache_page(struct page *pg); -extern void flush_icache_range(unsigned long start, unsigned long end); -extern void flush_icache_page(struct vm_area_struct *vma, struct page *page); +void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn); +void flush_dcache_page(struct page *pg); +void flush_icache_range(unsigned long start, unsigned long end); +void flush_icache_page(struct vm_area_struct *vma, struct page *page); +#else +#define flush_cache_all() do { } while (0) +#define flush_cache_mm(mm) do { } while (0) +#define flush_cache_range(vma, start, end) do { } while (0) +#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) +#define flush_dcache_page(page) do { } while (0) +#define flush_icache_range(start, end) do { } while (0) +#define flush_icache_page(vma,pg) do { } while (0) +#endif #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) /* SH3 has unified cache so no special action needed here */ #define flush_cache_sigtramp(vaddr) do { } while (0) -#define flush_page_to_ram(page) do { } while (0) #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) #define p3_cache_init() do { } while (0) -#define PG_mapped PG_arch_1 - -/* We provide our own get_unmapped_area to avoid cache alias issue */ -#define HAVE_ARCH_UNMAPPED_AREA - -#else - -#define flush_cache_all() do { } while (0) -#define flush_cache_mm(mm) do { } while (0) -#define flush_cache_range(vma, start, end) do { } while (0) -#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) -#define flush_dcache_page(page) do { } while (0) -#define flush_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) -#define flush_icache_range(start, end) do { } while (0) -#define flush_icache_page(vma,pg) do { } while (0) -#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) -#define flush_cache_sigtramp(vaddr) do { } while (0) - -#define p3_cache_init() do { } while (0) - -#define HAVE_ARCH_UNMAPPED_AREA - -#endif - #endif /* __ASM_CPU_SH3_CACHEFLUSH_H */ -
diff --git a/include/asm-sh/cpu-sh3/freq.h b/include/asm-sh/cpu-sh3/freq.h index b61b6e3..273f322 100644 --- a/include/asm-sh/cpu-sh3/freq.h +++ b/include/asm-sh/cpu-sh3/freq.h
@@ -18,5 +18,9 @@ #define MIN_DIVISOR_NR 0 #define MAX_DIVISOR_NR 4 +#define FRQCR_CKOEN 0x0100 +#define FRQCR_PLLEN 0x0080 +#define FRQCR_PSTBY 0x0040 + #endif /* __ASM_CPU_SH3_FREQ_H */
diff --git a/include/asm-sh/cpu-sh3/mmu_context.h b/include/asm-sh/cpu-sh3/mmu_context.h index a844ea0..bccb7dd 100644 --- a/include/asm-sh/cpu-sh3/mmu_context.h +++ b/include/asm-sh/cpu-sh3/mmu_context.h
@@ -27,8 +27,12 @@ #define TRA 0xffffffd0 #define EXPEVT 0xffffffd4 -#if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \ - defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705) +#if defined(CONFIG_CPU_SUBTYPE_SH7707) || \ + defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ + defined(CONFIG_CPU_SUBTYPE_SH7300) || \ + defined(CONFIG_CPU_SUBTYPE_SH7705) || \ + defined(CONFIG_CPU_SUBTYPE_SH7710) #define INTEVT 0xa4000000 /* INTEVTE2(0xa4000000) */ #else #define INTEVT 0xffffffd8
diff --git a/include/asm-sh/cpu-sh3/shmparam.h b/include/asm-sh/cpu-sh3/shmparam.h deleted file mode 100644 index da5b5ee..0000000 --- a/include/asm-sh/cpu-sh3/shmparam.h +++ /dev/null
@@ -1,16 +0,0 @@ -/* - * include/asm-sh/cpu-sh3/shmparam.h - * - * Copyright (C) 1999 Niibe Yutaka - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#ifndef __ASM_CPU_SH3_SHMPARAM_H -#define __ASM_CPU_SH3_SHMPARAM_H - -#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ - -#endif /* __ASM_CPU_SH3_SHMPARAM_H */ -
diff --git a/include/asm-sh/cpu-sh3/timer.h b/include/asm-sh/cpu-sh3/timer.h index 3d8e95e..b2394cf 100644 --- a/include/asm-sh/cpu-sh3/timer.h +++ b/include/asm-sh/cpu-sh3/timer.h
@@ -20,9 +20,14 @@ * SH7710 * SH7720 * SH7300 + * SH7710 * --------------------------------------------------------------------------- */ +#if !defined(CONFIG_CPU_SUBTYPE_SH7727) +#define TMU_TOCR 0xfffffe90 /* Byte access */ +#endif + #if defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7710) #define TMU_TSTR 0xa412fe92 /* Byte access */ @@ -39,9 +44,6 @@ #define TMU2_TCR 0xa412feb4 /* Word access */ #else -#if !defined(CONFIG_CPU_SUBTYPE_SH7727) -#define TMU_TOCR 0xfffffe90 /* Byte access */ -#endif #define TMU_TSTR 0xfffffe92 /* Byte access */ #define TMU0_TCOR 0xfffffe94 /* Long access */
diff --git a/include/asm-sh/cpu-sh3/ubc.h b/include/asm-sh/cpu-sh3/ubc.h index 0f809de..9d308cb 100644 --- a/include/asm-sh/cpu-sh3/ubc.h +++ b/include/asm-sh/cpu-sh3/ubc.h
@@ -11,6 +11,19 @@ #ifndef __ASM_CPU_SH3_UBC_H #define __ASM_CPU_SH3_UBC_H +#if defined(CONFIG_CPU_SUBTYPE_SH7710) +#define UBC_BARA 0xa4ffffb0 +#define UBC_BAMRA 0xa4ffffb4 +#define UBC_BBRA 0xa4ffffb8 +#define UBC_BASRA 0xffffffe4 +#define UBC_BARB 0xa4ffffa0 +#define UBC_BAMRB 0xa4ffffa4 +#define UBC_BBRB 0xa4ffffa8 +#define UBC_BASRB 0xffffffe8 +#define UBC_BDRB 0xa4ffff90 +#define UBC_BDMRB 0xa4ffff94 +#define UBC_BRCR 0xa4ffff98 +#else #define UBC_BARA 0xffffffb0 #define UBC_BAMRA 0xffffffb4 #define UBC_BBRA 0xffffffb8 @@ -22,6 +35,6 @@ #define UBC_BDRB 0xffffff90 #define UBC_BDMRB 0xffffff94 #define UBC_BRCR 0xffffff98 +#endif #endif /* __ASM_CPU_SH3_UBC_H */ -
diff --git a/include/asm-sh/cpu-sh4/addrspace.h b/include/asm-sh/cpu-sh4/addrspace.h index 727634d..bb2e1b0 100644 --- a/include/asm-sh/cpu-sh4/addrspace.h +++ b/include/asm-sh/cpu-sh4/addrspace.h
@@ -22,5 +22,8 @@ #define P4SEG_TLB_DATA 0xf7000000 #define P4SEG_REG_BASE 0xff000000 +#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */ +#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */ + #endif /* __ASM_CPU_SH4_ADDRSPACE_H */
diff --git a/include/asm-sh/cpu-sh4/cache.h b/include/asm-sh/cpu-sh4/cache.h index 1fe2035..6e9c7e6 100644 --- a/include/asm-sh/cpu-sh4/cache.h +++ b/include/asm-sh/cpu-sh4/cache.h
@@ -22,7 +22,9 @@ #define CCR_CACHE_ICE 0x0100 /* Instruction Cache Enable */ #define CCR_CACHE_ICI 0x0800 /* IC Invalidate */ #define CCR_CACHE_IIX 0x8000 /* IC Index Enable */ +#ifndef CONFIG_CPU_SUBTYPE_SH7780 #define CCR_CACHE_EMODE 0x80000000 /* EMODE Enable */ +#endif /* Default CCR setup: 8k+16k-byte cache,P1-wb,enable */ #define CCR_CACHE_ENABLE (CCR_CACHE_OCE|CCR_CACHE_ICE)
diff --git a/include/asm-sh/cpu-sh4/cacheflush.h b/include/asm-sh/cpu-sh4/cacheflush.h index f323567..515fd57 100644 --- a/include/asm-sh/cpu-sh4/cacheflush.h +++ b/include/asm-sh/cpu-sh4/cacheflush.h
@@ -16,40 +16,29 @@ * caching; in which case they're only semi-broken), * so we need them. */ - -/* Page is 4K, OC size is 16K, there are four lines. */ -#define CACHE_ALIAS 0x00003000 - -struct page; -struct mm_struct; -struct vm_area_struct; - -extern void flush_cache_all(void); -extern void flush_cache_mm(struct mm_struct *mm); -extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end); -extern void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn); -extern void flush_dcache_page(struct page *pg); +void flush_cache_all(void); +void flush_cache_mm(struct mm_struct *mm); +void flush_cache_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end); +void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, + unsigned long pfn); +void flush_dcache_page(struct page *pg); #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) -extern void flush_icache_range(unsigned long start, unsigned long end); -extern void flush_cache_sigtramp(unsigned long addr); -extern void flush_icache_user_range(struct vm_area_struct *vma, - struct page *page, unsigned long addr, - int len); +void flush_icache_range(unsigned long start, unsigned long end); +void flush_cache_sigtramp(unsigned long addr); +void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, + unsigned long addr, int len); #define flush_icache_page(vma,pg) do { } while (0) /* Initialization of P3 area for copy_user_page */ -extern void p3_cache_init(void); +void p3_cache_init(void); #define PG_mapped PG_arch_1 -/* We provide our own get_unmapped_area to avoid cache alias issue */ -#define HAVE_ARCH_UNMAPPED_AREA - #ifdef CONFIG_MMU extern int remap_area_pages(unsigned long addr, unsigned long phys_addr, unsigned long size, unsigned long flags); @@ -61,4 +50,3 @@ } #endif /* CONFIG_MMU */ #endif /* __ASM_CPU_SH4_CACHEFLUSH_H */ -
diff --git a/include/asm-sh/cpu-sh4/dma-sh7780.h b/include/asm-sh/cpu-sh4/dma-sh7780.h new file mode 100644 index 0000000..6c90d28 --- /dev/null +++ b/include/asm-sh/cpu-sh4/dma-sh7780.h
@@ -0,0 +1,39 @@ +#ifndef __ASM_SH_CPU_SH4_DMA_SH7780_H +#define __ASM_SH_CPU_SH4_DMA_SH7780_H + +#define REQ_HE 0x000000C0 +#define REQ_H 0x00000080 +#define REQ_LE 0x00000040 +#define TM_BURST 0x0000020 +#define TS_8 0x00000000 +#define TS_16 0x00000008 +#define TS_32 0x00000010 +#define TS_16BLK 0x00000018 +#define TS_32BLK 0x00100000 + +/* + * The SuperH DMAC supports a number of transmit sizes, we list them here, + * with their respective values as they appear in the CHCR registers. + * + * Defaults to a 64-bit transfer size. + */ +enum { + XMIT_SZ_8BIT, + XMIT_SZ_16BIT, + XMIT_SZ_32BIT, + XMIT_SZ_128BIT, + XMIT_SZ_256BIT, +}; + +/* + * The DMA count is defined as the number of bytes to transfer. + */ +static unsigned int __attribute__ ((used)) ts_shift[] = { + [XMIT_SZ_8BIT] = 0, + [XMIT_SZ_16BIT] = 1, + [XMIT_SZ_32BIT] = 2, + [XMIT_SZ_128BIT] = 4, + [XMIT_SZ_256BIT] = 5, +}; + +#endif /* __ASM_SH_CPU_SH4_DMA_SH7780_H */
diff --git a/include/asm-sh/cpu-sh4/dma.h b/include/asm-sh/cpu-sh4/dma.h index 0dfe61f..3e4b3e6 100644 --- a/include/asm-sh/cpu-sh4/dma.h +++ b/include/asm-sh/cpu-sh4/dma.h
@@ -1,11 +1,17 @@ #ifndef __ASM_CPU_SH4_DMA_H #define __ASM_CPU_SH4_DMA_H +#define DMAOR_INIT ( 0x8000 | DMAOR_DME ) + #ifdef CONFIG_CPU_SH4A #define SH_DMAC_BASE 0xfc808020 + +#define CHCR_TS_MASK 0x18 +#define CHCR_TS_SHIFT 3 + +#include <asm/cpu/dma-sh7780.h> #else #define SH_DMAC_BASE 0xffa00000 -#endif /* Definitions for the SuperH DMAC */ #define TM_BURST 0x0000080 @@ -19,8 +25,6 @@ #define DMAOR_COD 0x00000008 -#define DMAOR_INIT ( 0x8000 | DMAOR_DME ) - /* * The SuperH DMAC supports a number of transmit sizes, we list them here, * with their respective values as they appear in the CHCR registers. @@ -45,5 +49,6 @@ [XMIT_SZ_32BIT] = 2, [XMIT_SZ_256BIT] = 5, }; +#endif #endif /* __ASM_CPU_SH4_DMA_H */
diff --git a/include/asm-sh/cpu-sh4/shmparam.h b/include/asm-sh/cpu-sh4/shmparam.h deleted file mode 100644 index a5a0aa9..0000000 --- a/include/asm-sh/cpu-sh4/shmparam.h +++ /dev/null
@@ -1,19 +0,0 @@ -/* - * include/asm-sh/cpu-sh4/shmparam.h - * - * Copyright (C) 1999 Niibe Yutaka - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#ifndef __ASM_CPU_SH4_SHMPARAM_H -#define __ASM_CPU_SH4_SHMPARAM_H - -/* - * SH-4 has D-cache alias issue - */ -#define SHMLBA (PAGE_SIZE*4) /* attach addr a multiple of this */ - -#endif /* __ASM_CPU_SH4_SHMPARAM_H */ -
diff --git a/include/asm-sh/cpu-sh4/sq.h b/include/asm-sh/cpu-sh4/sq.h index 366b091..586d649 100644 --- a/include/asm-sh/cpu-sh4/sq.h +++ b/include/asm-sh/cpu-sh4/sq.h
@@ -17,7 +17,7 @@ * Store queues range from e0000000-e3fffffc, allowing approx. 64MB to be * mapped to any physical address space. Since data is written (and aligned) * to 32-byte boundaries, we need to be sure that all allocations are aligned. - */ + */ #define SQ_SIZE 32 #define SQ_ALIGN_MASK (~(SQ_SIZE - 1)) #define SQ_ALIGN(addr) (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK) @@ -26,23 +26,10 @@ #define SQ_QACR1 (P4SEG_REG_BASE + 0x3c) #define SQ_ADDRMAX (P4SEG_STORE_QUE + 0x04000000) -struct sq_mapping { - const char *name; - - unsigned long sq_addr; - unsigned long addr; - unsigned int size; - - struct list_head list; -}; - /* arch/sh/kernel/cpu/sh4/sq.c */ -extern struct sq_mapping *sq_remap(unsigned long phys, unsigned int size, const char *name); -extern void sq_unmap(struct sq_mapping *map); - -extern void sq_clear(unsigned long addr, unsigned int len); -extern void sq_flush(void *addr); -extern void sq_flush_range(unsigned long start, unsigned int len); +unsigned long sq_remap(unsigned long phys, unsigned int size, + const char *name, unsigned long flags); +void sq_unmap(unsigned long vaddr); +void sq_flush_range(unsigned long start, unsigned int len); #endif /* __ASM_CPU_SH4_SQ_H */ -
diff --git a/include/asm-sh/cqreek/cqreek.h b/include/asm-sh/cqreek/cqreek.h deleted file mode 100644 index 09aecc0..0000000 --- a/include/asm-sh/cqreek/cqreek.h +++ /dev/null
@@ -1,27 +0,0 @@ -#ifndef __ASM_SH_CQREEK_CQREEK_H -#define __ASM_SH_CQREEK_CQREEK_H - -#define BRIDGE_FEATURE 0x0002 - -#define BRIDGE_IDE_CTRL 0x0018 -#define BRIDGE_IDE_INTR_LVL 0x001A -#define BRIDGE_IDE_INTR_MASK 0x001C -#define BRIDGE_IDE_INTR_STAT 0x001E - -#define BRIDGE_ISA_CTRL 0x0028 -#define BRIDGE_ISA_INTR_LVL 0x002A -#define BRIDGE_ISA_INTR_MASK 0x002C -#define BRIDGE_ISA_INTR_STAT 0x002E - -/* arch/sh/boards/cqreek/setup.c */ -extern void setup_cqreek(void); - -/* arch/sh/boards/cqreek/irq.c */ -extern int cqreek_has_ide, cqreek_has_isa; -extern void init_cqreek_IRQ(void); - -/* arch/sh/boards/cqreek/io.c */ -extern unsigned long cqreek_port2addr(unsigned long port); - -#endif /* __ASM_SH_CQREEK_CQREEK_H */ -
diff --git a/include/asm-sh/dma-mapping.h b/include/asm-sh/dma-mapping.h index 124968f9..56cd4b9 100644 --- a/include/asm-sh/dma-mapping.h +++ b/include/asm-sh/dma-mapping.h
@@ -141,25 +141,35 @@ } } -static void dma_sync_single_for_cpu(struct device *dev, - dma_addr_t dma_handle, size_t size, - enum dma_data_direction dir) - __attribute__ ((alias("dma_sync_single"))); +static inline void dma_sync_single_for_cpu(struct device *dev, + dma_addr_t dma_handle, size_t size, + enum dma_data_direction dir) +{ + dma_sync_single(dev, dma_handle, size, dir); +} -static void dma_sync_single_for_device(struct device *dev, - dma_addr_t dma_handle, size_t size, +static inline void dma_sync_single_for_device(struct device *dev, + dma_addr_t dma_handle, + size_t size, + enum dma_data_direction dir) +{ + dma_sync_single(dev, dma_handle, size, dir); +} + +static inline void dma_sync_sg_for_cpu(struct device *dev, + struct scatterlist *sg, int nelems, enum dma_data_direction dir) - __attribute__ ((alias("dma_sync_single"))); +{ + dma_sync_sg(dev, sg, nelems, dir); +} -static void dma_sync_sg_for_cpu(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction dir) - __attribute__ ((alias("dma_sync_sg"))); +static inline void dma_sync_sg_for_device(struct device *dev, + struct scatterlist *sg, int nelems, + enum dma_data_direction dir) +{ + dma_sync_sg(dev, sg, nelems, dir); +} -static void dma_sync_sg_for_device(struct device *dev, - struct scatterlist *sg, int nelems, - enum dma_data_direction dir) - __attribute__ ((alias("dma_sync_sg"))); static inline int dma_get_cache_alignment(void) { @@ -174,6 +184,4 @@ { return dma_addr == 0; } - #endif /* __ASM_SH_DMA_MAPPING_H */ -
diff --git a/include/asm-sh/dma.h b/include/asm-sh/dma.h index e62a6d0..d9daa02 100644 --- a/include/asm-sh/dma.h +++ b/include/asm-sh/dma.h
@@ -89,6 +89,7 @@ wait_queue_head_t wait_queue; struct sys_device dev; + char *name; }; struct dma_info {
diff --git a/include/asm-sh/dmida/io.h b/include/asm-sh/dmida/io.h deleted file mode 100644 index 21bd416..0000000 --- a/include/asm-sh/dmida/io.h +++ /dev/null
@@ -1,10 +0,0 @@ -#ifndef __ASM_SH_DMIDA_IO_H -#define __ASM_SH_DMIDA_IO_H - -/* - * Nothing special here.. just use the generic cchip io routines. - */ -#include <asm/hd64465/io.h> - -#endif /* __ASM_SH_DMIDA_IO_H */ -
diff --git a/include/asm-sh/elf.h b/include/asm-sh/elf.h index 1b63dfe..3a07ab4 100644 --- a/include/asm-sh/elf.h +++ b/include/asm-sh/elf.h
@@ -1,6 +1,11 @@ #ifndef __ASM_SH_ELF_H #define __ASM_SH_ELF_H +#include <asm/processor.h> +#include <asm/auxvec.h> +#include <asm/ptrace.h> +#include <asm/user.h> + /* SH relocation types */ #define R_SH_NONE 0 #define R_SH_DIR32 1 @@ -46,9 +51,6 @@ * ELF register definitions.. */ -#include <asm/ptrace.h> -#include <asm/user.h> - typedef unsigned long elf_greg_t; #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) @@ -91,7 +93,7 @@ instruction set this CPU supports. This could be done in user space, but it's not easy, and we've already done it here. */ -#define ELF_HWCAP (0) +#define ELF_HWCAP (boot_cpu_data.flags) /* This yields a string that ld.so will use to load implementation specific libraries for optimization. This is more specific in @@ -119,4 +121,24 @@ #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs) #endif +#ifdef CONFIG_VSYSCALL +/* vDSO has arch_setup_additional_pages */ +#define ARCH_HAS_SETUP_ADDITIONAL_PAGES +struct linux_binprm; +extern int arch_setup_additional_pages(struct linux_binprm *bprm, + int executable_stack); + +extern unsigned int vdso_enabled; +extern void __kernel_vsyscall; + +#define VDSO_BASE ((unsigned long)current->mm->context.vdso) +#define VDSO_SYM(x) (VDSO_BASE + (unsigned long)(x)) + +#define ARCH_DLINFO \ +do { \ + if (vdso_enabled) \ + NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE); \ +} while (0) +#endif /* CONFIG_VSYSCALL */ + #endif /* __ASM_SH_ELF_H */
diff --git a/include/asm-sh/fixmap.h b/include/asm-sh/fixmap.h index 412bcca..458e9fa 100644 --- a/include/asm-sh/fixmap.h +++ b/include/asm-sh/fixmap.h
@@ -25,7 +25,7 @@ * addresses. The point is to have a constant address at * compile time, but to set the physical address only * in the boot process. We allocate these special addresses - * from the end of virtual memory (0xfffff000) backwards. + * from the end of P3 backwards. * Also this lets us do fail-safe vmalloc(), we * can guarantee that these special addresses and * vmalloc()-ed addresses never overlap.
diff --git a/include/asm-sh/flat.h b/include/asm-sh/flat.h index f29072e..0d5cc04 100644 --- a/include/asm-sh/flat.h +++ b/include/asm-sh/flat.h
@@ -13,7 +13,7 @@ #define __ASM_SH_FLAT_H #define flat_stack_align(sp) /* nothing needed */ -#define flat_argvp_envp_on_stack() 1 +#define flat_argvp_envp_on_stack() 0 #define flat_old_ram_flag(flags) (flags) #define flat_reloc_valid(reloc, size) ((reloc) <= (size)) #define flat_get_addr_from_rp(rp, relval, flags) get_unaligned(rp)
diff --git a/include/asm-sh/harp/harp.h b/include/asm-sh/harp/harp.h deleted file mode 100644 index b2fbcfa..0000000 --- a/include/asm-sh/harp/harp.h +++ /dev/null
@@ -1,43 +0,0 @@ -/* - * Copyright (C) 2001 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * Defintions applicable to the STMicroelectronics ST40STB1 HARP and - * compatible boards. - */ - -#if defined(CONFIG_SH_STB1_HARP) - -#define EPLD_BASE 0xa0800000 - -#define EPLD_LED (EPLD_BASE+0x000c0000) -#define EPLD_INTSTAT0 (EPLD_BASE+0x00200000) -#define EPLD_INTSTAT1 (EPLD_BASE+0x00240000) -#define EPLD_INTMASK0 (EPLD_BASE+0x00280000) -#define EPLD_INTMASK1 (EPLD_BASE+0x002c0000) -#define EPLD_PAGEADDR (EPLD_BASE+0x00300000) -#define EPLD_REVID1 (EPLD_BASE+0x00380000) -#define EPLD_REVID2 (EPLD_BASE+0x003c0000) - -#define EPLD_LED_ON 1 -#define EPLD_LED_OFF 0 - -#elif defined(CONFIG_SH_STB1_OVERDRIVE) - -#define EPLD_BASE 0xa7000000 - -#define EPLD_REVID (EPLD_BASE+0x00000000) -#define EPLD_LED (EPLD_BASE+0x00040000) -#define EPLD_INTMASK0 (EPLD_BASE+0x001c0000) -#define EPLD_INTMASK1 (EPLD_BASE+0x00200000) -#define EPLD_INTSTAT0 (EPLD_BASE+0x00240000) -#define EPLD_INTSTAT1 (EPLD_BASE+0x00280000) - -#define EPLD_LED_ON 0 -#define EPLD_LED_OFF 1 - -#else -#error Unknown board -#endif
diff --git a/include/asm-sh/harp/io.h b/include/asm-sh/harp/io.h deleted file mode 100644 index 68f39e0..0000000 --- a/include/asm-sh/harp/io.h +++ /dev/null
@@ -1,10 +0,0 @@ -#ifndef __ASM_SH_HARP_IO_H -#define __ASM_SH_HARP_IO_H - -/* - * Nothing special here.. just use the generic cchip io routines. - */ -#include <asm/hd64465/io.h> - -#endif /* __ASM_SH_HARP_IO_H */ -
diff --git a/include/asm-sh/hd64461/hd64461.h b/include/asm-sh/hd64461.h similarity index 84% rename from include/asm-sh/hd64461/hd64461.h rename to include/asm-sh/hd64461.h index 87f13d2..27e5c34 100644 --- a/include/asm-sh/hd64461/hd64461.h +++ b/include/asm-sh/hd64461.h
@@ -40,7 +40,12 @@ #define HD64461_LCDCBAR 0x11000 #define HD64461_LCDCLOR 0x11002 #define HD64461_LCDCCR 0x11004 -#define HD64461_LCDCCR_MOFF 0x80 +#define HD64461_LCDCCR_STBACK 0x0400 +#define HD64461_LCDCCR_STREQ 0x0100 +#define HD64461_LCDCCR_MOFF 0x0080 +#define HD64461_LCDCCR_REFSEL 0x0040 +#define HD64461_LCDCCR_EPON 0x0020 +#define HD64461_LCDCCR_SPON 0x0010 #define HD64461_LDR1 0x11010 #define HD64461_LDR1_DON 0x01 @@ -54,9 +59,9 @@ #define HD64461_LDVSPR 0x1101c #define HD64461_LDR3 0x1101e -#define HD64461_CPTWAR 0x11030 +#define HD64461_CPTWAR 0x11030 #define HD64461_CPTWDR 0x11032 -#define HD64461_CPTRAR 0x11034 +#define HD64461_CPTRAR 0x11034 #define HD64461_CPTRDR 0x11036 #define HD64461_GRDOR 0x11040 @@ -111,7 +116,7 @@ #define HD64461_PCCISR_BVD1 0x01 /* battery 1 */ #define HD64461_PCCISR_PCD_MASK 0x0c /* card detect */ -#define HD64461_PCCISR_BVD_MASK 0x03 /* battery voltage */ +#define HD64461_PCCISR_BVD_MASK 0x03 /* battery voltage */ #define HD64461_PCCISR_BVD_BATGOOD 0x03 /* battery good */ #define HD64461_PCCISR_BVD_BATWARN 0x01 /* battery low warning */ #define HD64461_PCCISR_BVD_BATDEAD1 0x02 /* battery dead */ @@ -139,11 +144,11 @@ /* PCC Card Status Change Interrupt Enable Register */ #define HD64461_PCCCSCIER_CRE 0x80 /* change reset enable */ -#define HD64461_PCCCSCIER_IREQE_MASK 0x60 /* IREQ enable */ +#define HD64461_PCCCSCIER_IREQE_MASK 0x60 /* IREQ enable */ #define HD64461_PCCCSCIER_IREQE_DISABLED 0x00 /* IREQ disabled */ -#define HD64461_PCCCSCIER_IREQE_LEVEL 0x20 /* IREQ level-triggered */ +#define HD64461_PCCCSCIER_IREQE_LEVEL 0x20 /* IREQ level-triggered */ #define HD64461_PCCCSCIER_IREQE_FALLING 0x40 /* IREQ falling-edge-trig */ -#define HD64461_PCCCSCIER_IREQE_RISING 0x60 /* IREQ rising-edge-trig */ +#define HD64461_PCCCSCIER_IREQE_RISING 0x60 /* IREQ rising-edge-trig */ #define HD64461_PCCCSCIER_SCE 0x10 /* status change enable */ #define HD64461_PCCCSCIER_CDE 0x08 /* card detect change enable */ @@ -155,7 +160,6 @@ #define HD64461_PCCSCR_VCC1 0x02 /* voltage control pin 1 */ #define HD64461_PCCSCR_SWP 0x01 /* write protect */ - #define HD64461_P0OCR 0x1202a #define HD64461_P1OCR 0x1202c #define HD64461_PGCR 0x1202e @@ -180,23 +184,25 @@ #define HD64461_NIRR 0x15000 #define HD64461_NIMR 0x15002 -#ifndef CONFIG_HD64461_IOBASE -#define CONFIG_HD64461_IOBASE 0xb0000000 -#endif -#ifndef CONFIG_HD64461_IRQ -#define CONFIG_HD64461_IRQ 36 -#endif - #define HD64461_IRQBASE OFFCHIP_IRQ_BASE -#define HD64461_IRQ_NUM 16 +#define HD64461_IRQ_NUM 16 -#define HD64461_IRQ_UART (HD64461_IRQBASE+5) -#define HD64461_IRQ_IRDA (HD64461_IRQBASE+6) -#define HD64461_IRQ_TMU1 (HD64461_IRQBASE+9) -#define HD64461_IRQ_TMU0 (HD64461_IRQBASE+10) -#define HD64461_IRQ_GPIO (HD64461_IRQBASE+11) -#define HD64461_IRQ_AFE (HD64461_IRQBASE+12) -#define HD64461_IRQ_PCC1 (HD64461_IRQBASE+13) -#define HD64461_IRQ_PCC0 (HD64461_IRQBASE+14) +#define HD64461_IRQ_UART (HD64461_IRQBASE+5) +#define HD64461_IRQ_IRDA (HD64461_IRQBASE+6) +#define HD64461_IRQ_TMU1 (HD64461_IRQBASE+9) +#define HD64461_IRQ_TMU0 (HD64461_IRQBASE+10) +#define HD64461_IRQ_GPIO (HD64461_IRQBASE+11) +#define HD64461_IRQ_AFE (HD64461_IRQBASE+12) +#define HD64461_IRQ_PCC1 (HD64461_IRQBASE+13) +#define HD64461_IRQ_PCC0 (HD64461_IRQBASE+14) + +#define __IO_PREFIX hd64461 +#include <asm/io_generic.h> + +/* arch/sh/cchips/hd6446x/hd64461/setup.c */ +int hd64461_irq_demux(int irq); +void hd64461_register_irq_demux(int irq, + int (*demux) (int irq, void *dev), void *dev); +void hd64461_unregister_irq_demux(int irq); #endif
diff --git a/include/asm-sh/hd64461/io.h b/include/asm-sh/hd64461/io.h deleted file mode 100644 index 67f2489..0000000 --- a/include/asm-sh/hd64461/io.h +++ /dev/null
@@ -1,43 +0,0 @@ -/* - * include/asm-sh/io_hd64461.h - * - * Copyright 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * IO functions for an HD64461 - */ - -#ifndef _ASM_SH_IO_HD64461_H -#define _ASM_SH_IO_HD64461_H - -extern unsigned char hd64461_inb(unsigned long port); -extern unsigned short hd64461_inw(unsigned long port); -extern unsigned int hd64461_inl(unsigned long port); - -extern void hd64461_outb(unsigned char value, unsigned long port); -extern void hd64461_outw(unsigned short value, unsigned long port); -extern void hd64461_outl(unsigned int value, unsigned long port); - -extern unsigned char hd64461_inb_p(unsigned long port); -extern void hd64461_outb_p(unsigned char value, unsigned long port); - -extern void hd64461_insb(unsigned long port, void *addr, unsigned long count); -extern void hd64461_insw(unsigned long port, void *addr, unsigned long count); -extern void hd64461_insl(unsigned long port, void *addr, unsigned long count); - -extern void hd64461_outsb(unsigned long port, const void *buffer, unsigned long count); -extern void hd64461_outsw(unsigned long port, const void *buffer, unsigned long count); -extern void hd64461_outsl(unsigned long port, const void *buffer, unsigned long count); - -extern unsigned short hd64461_readw(unsigned long addr); -extern void hd64461_writew(unsigned short b, unsigned long addr); - - -extern int hd64461_irq_demux(int irq); -extern void hd64461_register_irq_demux(int irq, - int (*demux)(int irq, void *dev), void *dev); -extern void hd64461_unregister_irq_demux(int irq); - -#endif /* _ASM_SH_IO_HD64461_H */
diff --git a/include/asm-sh/hp6xx/hp6xx.h b/include/asm-sh/hp6xx/hp6xx.h index a26247f..f35134c 100644 --- a/include/asm-sh/hp6xx/hp6xx.h +++ b/include/asm-sh/hp6xx/hp6xx.h
@@ -2,16 +2,33 @@ #define __ASM_SH_HP6XX_H /* - * Copyright (C) 2003 Andriy Skulysh + * Copyright (C) 2003, 2004, 2005 Andriy Skulysh + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * */ -#define HP680_TS_IRQ IRQ3_IRQ +#define HP680_BTN_IRQ IRQ0_IRQ +#define HP680_TS_IRQ IRQ3_IRQ +#define HP680_HD64461_IRQ IRQ4_IRQ #define DAC_LCD_BRIGHTNESS 0 #define DAC_SPEAKER_VOLUME 1 +#define PGDR_OPENED 0x01 +#define PGDR_MAIN_BATTERY_OUT 0x04 +#define PGDR_PLAY_BUTTON 0x08 +#define PGDR_REWIND_BUTTON 0x10 +#define PGDR_RECORD_BUTTON 0x20 + #define PHDR_TS_PEN_DOWN 0x08 +#define PJDR_LED_BLINK 0x02 + +#define PKDR_LED_GREEN 0x10 + #define SCPDR_TS_SCAN_ENABLE 0x20 #define SCPDR_TS_SCAN_Y 0x02 #define SCPDR_TS_SCAN_X 0x01 @@ -21,11 +38,43 @@ #define ADC_CHANNEL_TS_Y 1 #define ADC_CHANNEL_TS_X 2 +#define ADC_CHANNEL_BATTERY 3 +#define ADC_CHANNEL_BACKUP 4 +#define ADC_CHANNEL_CHARGE 5 #define HD64461_GPADR_SPEAKER 0x01 #define HD64461_GPADR_PCMCIA0 (0x02|0x08) + #define HD64461_GPBDR_LCDOFF 0x01 +#define HD64461_GPBDR_LCD_CONTRAST_MASK 0x78 #define HD64461_GPBDR_LED_RED 0x80 +#include <asm/hd64461.h> +#include <asm/io.h> + +#define PJDR 0xa4000130 +#define PKDR 0xa4000132 + +static inline void hp6xx_led_red(int on) +{ + u16 v16; + v16 = ctrl_inw(CONFIG_HD64461_IOBASE + HD64461_GPBDR - 0x10000); + if (on) + ctrl_outw(v16 & (~HD64461_GPBDR_LED_RED), CONFIG_HD64461_IOBASE + HD64461_GPBDR - 0x10000); + else + ctrl_outw(v16 | HD64461_GPBDR_LED_RED, CONFIG_HD64461_IOBASE + HD64461_GPBDR - 0x10000); +} + +static inline void hp6xx_led_green(int on) +{ + u8 v8; + + v8 = ctrl_inb(PKDR); + if (on) + ctrl_outb(v8 & (~PKDR_LED_GREEN), PKDR); + else + ctrl_outb(v8 | PKDR_LED_GREEN, PKDR); +} + #endif /* __ASM_SH_HP6XX_H */
diff --git a/include/asm-sh/hp6xx/io.h b/include/asm-sh/hp6xx/io.h index 7317980..2044476 100644 --- a/include/asm-sh/hp6xx/io.h +++ b/include/asm-sh/hp6xx/io.h
@@ -4,7 +4,7 @@ /* * Nothing special here.. just use the generic cchip io routines. */ -#include <asm/hd64461/io.h> +#include <asm/hd64461.h> #endif /* __ASM_SH_HP6XX_IO_H */
diff --git a/include/asm-sh/hs7751rvoip/hs7751rvoip.h b/include/asm-sh/hs7751rvoip/hs7751rvoip.h index 5f995f9..c4cff9d 100644 --- a/include/asm-sh/hs7751rvoip/hs7751rvoip.h +++ b/include/asm-sh/hs7751rvoip/hs7751rvoip.h
@@ -19,8 +19,6 @@ #define PA_OUTPORTR 0xa400000e /* Output Port Reguster */ #define PA_VERREG 0xa4000014 /* FPGA Version Register */ -#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */ -#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */ #define PA_IDE_OFFSET 0x1f0 /* CF IDE Offset */ #define IRLCNTR1 (PA_BCR + 0) /* Interrupt Control Register1 */ @@ -44,4 +42,13 @@ #define IRQ_RINGING 4 /* Ringing IRQ */ #define IRQ_CODEC 5 /* CODEC IRQ */ +#define __IO_PREFIX hs7751rvoip +#include <asm/io_generic.h> + +/* arch/sh/boards/renesas/hs7751rvoip/irq.c */ +void init_hs7751rvoip_IRQ(void); + +/* arch/sh/boards/renesas/hs7751rvoip/io.c */ +void *hs7751rvoip_ioremap(unsigned long, unsigned long); + #endif /* __ASM_SH_RENESAS_HS7751RVOIP */
diff --git a/include/asm-sh/io.h b/include/asm-sh/io.h index 894e64b..ed12d38 100644 --- a/include/asm-sh/io.h +++ b/include/asm-sh/io.h
@@ -107,6 +107,9 @@ #define __raw_writew(v, a) __writew(v, (void __iomem *)(a)) #define __raw_writel(v, a) __writel(v, (void __iomem *)(a)) +void __raw_writesl(unsigned long addr, const void *data, int longlen); +void __raw_readsl(unsigned long addr, void *data, int longlen); + /* * The platform header files may define some of these macros to use * the inlined versions where appropriate. These macros may also be @@ -132,6 +135,9 @@ # define writel(v,a) ({ __raw_writel((v),(a)); mb(); }) #endif +#define writesl __raw_writesl +#define readsl __raw_readsl + #define readb_relaxed(a) readb(a) #define readw_relaxed(a) readw(a) #define readl_relaxed(a) readl(a) @@ -209,8 +215,14 @@ *(volatile unsigned long*)addr = b; } +static inline void ctrl_delay(void) +{ + ctrl_inw(P2SEG); +} + #define IO_SPACE_LIMIT 0xffffffff +#ifdef CONFIG_MMU /* * Change virtual addresses to physical addresses and vv. * These are trivial on the 1:1 Linux/SuperH mapping @@ -224,6 +236,10 @@ { return (void *)P1SEGADDR(address); } +#else +#define phys_to_virt(address) ((void *)(address)) +#define virt_to_phys(address) ((unsigned long)(address)) +#endif #define virt_to_bus virt_to_phys #define bus_to_virt phys_to_virt
diff --git a/include/asm-sh/irq-sh73180.h b/include/asm-sh/irq-sh73180.h index d705252..b28af9a 100644 --- a/include/asm-sh/irq-sh73180.h +++ b/include/asm-sh/irq-sh73180.h
@@ -311,6 +311,4 @@ #define IRQ6_PRIORITY 1 #define IRQ7_PRIORITY 1 -int shmse_irq_demux(int irq); - #endif /* __ASM_SH_IRQ_SH73180_H */
diff --git a/include/asm-sh/irq-sh7343.h b/include/asm-sh/irq-sh7343.h new file mode 100644 index 0000000..5d15419 --- /dev/null +++ b/include/asm-sh/irq-sh7343.h
@@ -0,0 +1,317 @@ +#ifndef __ASM_SH_IRQ_SH7343_H +#define __ASM_SH_IRQ_SH7343_H + +/* + * linux/include/asm-sh/irq-sh7343.h + * + * Copyright (C) 2006 Kenati Technologies Inc. + * Andre Mccurdy <andre@kenati.com> + * Ranjit Deshpande <ranjit@kenati.com> + */ + +#undef INTC_IPRA +#undef INTC_IPRB +#undef INTC_IPRC +#undef INTC_IPRD + +#undef DMTE0_IRQ +#undef DMTE1_IRQ +#undef DMTE2_IRQ +#undef DMTE3_IRQ +#undef DMTE4_IRQ +#undef DMTE5_IRQ +#undef DMTE6_IRQ +#undef DMTE7_IRQ +#undef DMAE_IRQ +#undef DMA_IPR_ADDR +#undef DMA_IPR_POS +#undef DMA_PRIORITY + +#undef INTC_IMCR0 +#undef INTC_IMCR1 +#undef INTC_IMCR2 +#undef INTC_IMCR3 +#undef INTC_IMCR4 +#undef INTC_IMCR5 +#undef INTC_IMCR6 +#undef INTC_IMCR7 +#undef INTC_IMCR8 +#undef INTC_IMCR9 +#undef INTC_IMCR10 + + +#define INTC_IPRA 0xA4080000UL +#define INTC_IPRB 0xA4080004UL +#define INTC_IPRC 0xA4080008UL +#define INTC_IPRD 0xA408000CUL +#define INTC_IPRE 0xA4080010UL +#define INTC_IPRF 0xA4080014UL +#define INTC_IPRG 0xA4080018UL +#define INTC_IPRH 0xA408001CUL +#define INTC_IPRI 0xA4080020UL +#define INTC_IPRJ 0xA4080024UL +#define INTC_IPRK 0xA4080028UL +#define INTC_IPRL 0xA408002CUL + +#define INTC_IMR0 0xA4080080UL +#define INTC_IMR1 0xA4080084UL +#define INTC_IMR2 0xA4080088UL +#define INTC_IMR3 0xA408008CUL +#define INTC_IMR4 0xA4080090UL +#define INTC_IMR5 0xA4080094UL +#define INTC_IMR6 0xA4080098UL +#define INTC_IMR7 0xA408009CUL +#define INTC_IMR8 0xA40800A0UL +#define INTC_IMR9 0xA40800A4UL +#define INTC_IMR10 0xA40800A8UL +#define INTC_IMR11 0xA40800ACUL + +#define INTC_IMCR0 0xA40800C0UL +#define INTC_IMCR1 0xA40800C4UL +#define INTC_IMCR2 0xA40800C8UL +#define INTC_IMCR3 0xA40800CCUL +#define INTC_IMCR4 0xA40800D0UL +#define INTC_IMCR5 0xA40800D4UL +#define INTC_IMCR6 0xA40800D8UL +#define INTC_IMCR7 0xA40800DCUL +#define INTC_IMCR8 0xA40800E0UL +#define INTC_IMCR9 0xA40800E4UL +#define INTC_IMCR10 0xA40800E8UL +#define INTC_IMCR11 0xA40800ECUL + +#define INTC_ICR0 0xA4140000UL +#define INTC_ICR1 0xA414001CUL + +#define INTMSK0 0xa4140044 +#define INTMSKCLR0 0xa4140064 +#define INTC_INTPRI0 0xa4140010 + +/* + NOTE: + + *_IRQ = (INTEVT2 - 0x200)/0x20 +*/ + +/* TMU0 */ +#define TMU0_IRQ 16 +#define TMU0_IPR_ADDR INTC_IPRA +#define TMU0_IPR_POS 3 +#define TMU0_PRIORITY 2 + +#define TIMER_IRQ 16 +#define TIMER_IPR_ADDR INTC_IPRA +#define TIMER_IPR_POS 3 +#define TIMER_PRIORITY 2 + +/* TMU1 */ +#define TMU1_IRQ 17 +#define TMU1_IPR_ADDR INTC_IPRA +#define TMU1_IPR_POS 2 +#define TMU1_PRIORITY 2 + +/* TMU2 */ +#define TMU2_IRQ 18 +#define TMU2_IPR_ADDR INTC_IPRA +#define TMU2_IPR_POS 1 +#define TMU2_PRIORITY 2 + +/* LCDC */ +#define LCDC_IRQ 28 +#define LCDC_IPR_ADDR INTC_IPRB +#define LCDC_IPR_POS 2 +#define LCDC_PRIORITY 2 + +/* VIO (Video I/O) */ +#define CEU_IRQ 52 +#define BEU_IRQ 53 +#define VEU_IRQ 54 +#define VOU_IRQ 55 +#define VIO_IPR_ADDR INTC_IPRE +#define VIO_IPR_POS 2 +#define VIO_PRIORITY 2 + +/* MFI (Multi Functional Interface) */ +#define MFI_IRQ 56 +#define MFI_IPR_ADDR INTC_IPRE +#define MFI_IPR_POS 1 +#define MFI_PRIORITY 2 + +/* VPU (Video Processing Unit) */ +#define VPU_IRQ 60 +#define VPU_IPR_ADDR INTC_IPRE +#define VPU_IPR_POS 0 +#define VPU_PRIORITY 2 + +/* 3DG */ +#define TDG_IRQ 63 +#define TDG_IPR_ADDR INTC_IPRJ +#define TDG_IPR_POS 2 +#define TDG_PRIORITY 2 + +/* DMAC(1) */ +#define DMTE0_IRQ 48 +#define DMTE1_IRQ 49 +#define DMTE2_IRQ 50 +#define DMTE3_IRQ 51 +#define DMA1_IPR_ADDR INTC_IPRE +#define DMA1_IPR_POS 3 +#define DMA1_PRIORITY 7 + +/* DMAC(2) */ +#define DMTE4_IRQ 76 +#define DMTE5_IRQ 77 +#define DMA2_IPR_ADDR INTC_IPRF +#define DMA2_IPR_POS 2 +#define DMA2_PRIORITY 7 + +/* SCIF0 */ +#define SCIF_ERI_IRQ 80 +#define SCIF_RXI_IRQ 81 +#define SCIF_BRI_IRQ 82 +#define SCIF_TXI_IRQ 83 +#define SCIF_IPR_ADDR INTC_IPRG +#define SCIF_IPR_POS 3 +#define SCIF_PRIORITY 3 + +/* SIOF0 */ +#define SIOF0_IRQ 84 +#define SIOF0_IPR_ADDR INTC_IPRH +#define SIOF0_IPR_POS 3 +#define SIOF0_PRIORITY 3 + +/* FLCTL (Flash Memory Controller) */ +#define FLSTE_IRQ 92 +#define FLTEND_IRQ 93 +#define FLTRQ0_IRQ 94 +#define FLTRQ1_IRQ 95 +#define FLCTL_IPR_ADDR INTC_IPRH +#define FLCTL_IPR_POS 1 +#define FLCTL_PRIORITY 3 + +/* IIC(0) (IIC Bus Interface) */ +#define IIC0_ALI_IRQ 96 +#define IIC0_TACKI_IRQ 97 +#define IIC0_WAITI_IRQ 98 +#define IIC0_DTEI_IRQ 99 +#define IIC0_IPR_ADDR INTC_IPRH +#define IIC0_IPR_POS 0 +#define IIC0_PRIORITY 3 + +/* IIC(1) (IIC Bus Interface) */ +#define IIC1_ALI_IRQ 44 +#define IIC1_TACKI_IRQ 45 +#define IIC1_WAITI_IRQ 46 +#define IIC1_DTEI_IRQ 47 +#define IIC1_IPR_ADDR INTC_IPRI +#define IIC1_IPR_POS 0 +#define IIC1_PRIORITY 3 + +/* SIO0 */ +#define SIO0_IRQ 88 +#define SIO0_IPR_ADDR INTC_IPRI +#define SIO0_IPR_POS 3 +#define SIO0_PRIORITY 3 + +/* SDHI */ +#define SDHI_SDHII0_IRQ 100 +#define SDHI_SDHII1_IRQ 101 +#define SDHI_SDHII2_IRQ 102 +#define SDHI_SDHII3_IRQ 103 +#define SDHI_IPR_ADDR INTC_IPRK +#define SDHI_IPR_POS 0 +#define SDHI_PRIORITY 3 + +/* SIU (Sound Interface Unit) */ +#define SIU_IRQ 108 +#define SIU_IPR_ADDR INTC_IPRJ +#define SIU_IPR_POS 1 +#define SIU_PRIORITY 3 + +#define PORT_PACR 0xA4050100UL +#define PORT_PBCR 0xA4050102UL +#define PORT_PCCR 0xA4050104UL +#define PORT_PDCR 0xA4050106UL +#define PORT_PECR 0xA4050108UL +#define PORT_PFCR 0xA405010AUL +#define PORT_PGCR 0xA405010CUL +#define PORT_PHCR 0xA405010EUL +#define PORT_PJCR 0xA4050110UL +#define PORT_PKCR 0xA4050112UL +#define PORT_PLCR 0xA4050114UL +#define PORT_SCPCR 0xA4050116UL +#define PORT_PMCR 0xA4050118UL +#define PORT_PNCR 0xA405011AUL +#define PORT_PQCR 0xA405011CUL +#define PORT_PRCR 0xA405011EUL +#define PORT_PTCR 0xA405014CUL +#define PORT_PUCR 0xA405014EUL +#define PORT_PVCR 0xA4050150UL + +#define PORT_PSELA 0xA4050140UL +#define PORT_PSELB 0xA4050142UL +#define PORT_PSELC 0xA4050144UL +#define PORT_PSELE 0xA4050158UL + +#define PORT_HIZCRA 0xA4050146UL +#define PORT_HIZCRB 0xA4050148UL +#define PORT_DRVCR 0xA405014AUL + +#define PORT_PADR 0xA4050120UL +#define PORT_PBDR 0xA4050122UL +#define PORT_PCDR 0xA4050124UL +#define PORT_PDDR 0xA4050126UL +#define PORT_PEDR 0xA4050128UL +#define PORT_PFDR 0xA405012AUL +#define PORT_PGDR 0xA405012CUL +#define PORT_PHDR 0xA405012EUL +#define PORT_PJDR 0xA4050130UL +#define PORT_PKDR 0xA4050132UL +#define PORT_PLDR 0xA4050134UL +#define PORT_SCPDR 0xA4050136UL +#define PORT_PMDR 0xA4050138UL +#define PORT_PNDR 0xA405013AUL +#define PORT_PQDR 0xA405013CUL +#define PORT_PRDR 0xA405013EUL +#define PORT_PTDR 0xA405016CUL +#define PORT_PUDR 0xA405016EUL +#define PORT_PVDR 0xA4050170UL + +#define IRQ0_IRQ 32 +#define IRQ1_IRQ 33 +#define IRQ2_IRQ 34 +#define IRQ3_IRQ 35 +#define IRQ4_IRQ 36 +#define IRQ5_IRQ 37 +#define IRQ6_IRQ 38 +#define IRQ7_IRQ 39 + +#define INTPRI00 0xA4140010UL + +#define IRQ0_IPR_ADDR INTPRI00 +#define IRQ1_IPR_ADDR INTPRI00 +#define IRQ2_IPR_ADDR INTPRI00 +#define IRQ3_IPR_ADDR INTPRI00 +#define IRQ4_IPR_ADDR INTPRI00 +#define IRQ5_IPR_ADDR INTPRI00 +#define IRQ6_IPR_ADDR INTPRI00 +#define IRQ7_IPR_ADDR INTPRI00 + +#define IRQ0_IPR_POS 7 +#define IRQ1_IPR_POS 6 +#define IRQ2_IPR_POS 5 +#define IRQ3_IPR_POS 4 +#define IRQ4_IPR_POS 3 +#define IRQ5_IPR_POS 2 +#define IRQ6_IPR_POS 1 +#define IRQ7_IPR_POS 0 + +#define IRQ0_PRIORITY 1 +#define IRQ1_PRIORITY 1 +#define IRQ2_PRIORITY 1 +#define IRQ3_PRIORITY 1 +#define IRQ4_PRIORITY 1 +#define IRQ5_PRIORITY 1 +#define IRQ6_PRIORITY 1 +#define IRQ7_PRIORITY 1 + +#endif /* __ASM_SH_IRQ_SH7343_H */
diff --git a/include/asm-sh/irq-sh7780.h b/include/asm-sh/irq-sh7780.h index 7f90315..895c578 100644 --- a/include/asm-sh/irq-sh7780.h +++ b/include/asm-sh/irq-sh7780.h
@@ -145,11 +145,6 @@ #define TMU_CH5_IPR_POS 1 #define TMU_CH5_PRIORITY 2 -#define RTC_IRQ 22 -#define RTC_IPR_ADDR INTC_INT2PRI1 -#define RTC_IPR_POS 0 -#define RTC_PRIORITY TIMER_PRIORITY - /* SCIF0 */ #define SCIF0_ERI_IRQ 40 #define SCIF0_RXI_IRQ 41
diff --git a/include/asm-sh/irq.h b/include/asm-sh/irq.h index 611e67c..0e5f365 100644 --- a/include/asm-sh/irq.h +++ b/include/asm-sh/irq.h
@@ -192,7 +192,7 @@ #if defined (CONFIG_CPU_SUBTYPE_SH7707) || defined (CONFIG_CPU_SUBTYPE_SH7708) || \ defined (CONFIG_CPU_SUBTYPE_SH7709) || defined (CONFIG_CPU_SUBTYPE_SH7750) || \ - defined (CONFIG_CPU_SUBTYPE_SH7751) + defined (CONFIG_CPU_SUBTYPE_SH7751) || defined (CONFIG_CPU_SUBTYPE_SH7706) #define SCI_ERI_IRQ 23 #define SCI_RXI_IRQ 24 #define SCI_TXI_IRQ 25 @@ -207,6 +207,7 @@ #define SCIF0_IPR_POS 3 #define SCIF0_PRIORITY 3 #elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ defined(CONFIG_CPU_SUBTYPE_SH7707) || \ defined(CONFIG_CPU_SUBTYPE_SH7709) #define SCIF_ERI_IRQ 56 @@ -261,9 +262,12 @@ #elif defined(CONFIG_CPU_SUBTYPE_SH7708) # define ONCHIP_NR_IRQS 32 #elif defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ defined(CONFIG_CPU_SUBTYPE_SH7705) # define ONCHIP_NR_IRQS 64 // Actually 61 # define PINT_NR_IRQS 16 +#elif defined(CONFIG_CPU_SUBTYPE_SH7710) +# define ONCHIP_NR_IRQS 104 #elif defined(CONFIG_CPU_SUBTYPE_SH7750) # define ONCHIP_NR_IRQS 48 // Actually 44 #elif defined(CONFIG_CPU_SUBTYPE_SH7751) @@ -275,7 +279,8 @@ #elif defined(CONFIG_CPU_SUBTYPE_ST40STB1) # define ONCHIP_NR_IRQS 144 #elif defined(CONFIG_CPU_SUBTYPE_SH7300) || \ - defined(CONFIG_CPU_SUBTYPE_SH73180) + defined(CONFIG_CPU_SUBTYPE_SH73180) || \ + defined(CONFIG_CPU_SUBTYPE_SH7343) # define ONCHIP_NR_IRQS 109 #elif defined(CONFIG_CPU_SUBTYPE_SH7780) # define ONCHIP_NR_IRQS 111 @@ -311,6 +316,8 @@ # define OFFCHIP_NR_IRQS 4 #elif defined(CONFIG_SH_R7780RP) # define OFFCHIP_NR_IRQS 16 +#elif defined(CONFIG_SH_7343_SOLUTION_ENGINE) +# define OFFCHIP_NR_IRQS 12 #elif defined(CONFIG_SH_UNKNOWN) # define OFFCHIP_NR_IRQS 16 /* Must also be last */ #else @@ -335,6 +342,11 @@ extern unsigned short *irq_mask_register; /* + * PINT IRQs + */ +void init_IRQ_pint(void); + +/* * Function for "on chip support modules". */ extern void make_ipr_irq(unsigned int irq, unsigned int addr, @@ -471,8 +483,10 @@ #define INTC_ICR 0xfffffee0UL #elif defined(CONFIG_CPU_SUBTYPE_SH7705) || \ + defined(CONFIG_CPU_SUBTYPE_SH7706) || \ defined(CONFIG_CPU_SUBTYPE_SH7707) || \ - defined(CONFIG_CPU_SUBTYPE_SH7709) + defined(CONFIG_CPU_SUBTYPE_SH7709) || \ + defined(CONFIG_CPU_SUBTYPE_SH7710) #define INTC_IRR0 0xa4000004UL #define INTC_IRR1 0xa4000006UL #define INTC_IRR2 0xa4000008UL @@ -491,8 +505,105 @@ #define INTC_IPRF 0xa4080000UL #define INTC_IPRG 0xa4080002UL #define INTC_IPRH 0xa4080004UL -#endif +#elif defined(CONFIG_CPU_SUBTYPE_SH7710) +/* Interrupt Controller Registers */ +#undef INTC_IPRA +#undef INTC_IPRB +#define INTC_IPRA 0xA414FEE2UL +#define INTC_IPRB 0xA414FEE4UL +#define INTC_IPRF 0xA4080000UL +#define INTC_IPRG 0xA4080002UL +#define INTC_IPRH 0xA4080004UL +#define INTC_IPRI 0xA4080006UL +#undef INTC_ICR0 +#undef INTC_ICR1 +#define INTC_ICR0 0xA414FEE0UL +#define INTC_ICR1 0xA4140010UL + +#define INTC_IRR0 0xa4000004UL +#define INTC_IRR1 0xa4000006UL +#define INTC_IRR2 0xa4000008UL +#define INTC_IRR3 0xa400000AUL +#define INTC_IRR4 0xa400000CUL +#define INTC_IRR5 0xa4080020UL +#define INTC_IRR7 0xa4080024UL +#define INTC_IRR8 0xa4080026UL + +/* Interrupt numbers */ +#define TIMER2_IRQ 18 +#define TIMER2_IPR_ADDR INTC_IPRA +#define TIMER2_IPR_POS 1 +#define TIMER2_PRIORITY 2 + +/* WDT */ +#define WDT_IRQ 27 +#define WDT_IPR_ADDR INTC_IPRB +#define WDT_IPR_POS 3 +#define WDT_PRIORITY 2 + +#define SCIF0_ERI_IRQ 52 +#define SCIF0_RXI_IRQ 53 +#define SCIF0_BRI_IRQ 54 +#define SCIF0_TXI_IRQ 55 +#define SCIF0_IPR_ADDR INTC_IPRE +#define SCIF0_IPR_POS 2 +#define SCIF0_PRIORITY 3 + +#define DMTE4_IRQ 76 +#define DMTE5_IRQ 77 +#define DMA2_IPR_ADDR INTC_IPRF +#define DMA2_IPR_POS 2 +#define DMA2_PRIORITY 7 + +#define IPSEC_IRQ 79 +#define IPSEC_IPR_ADDR INTC_IPRF +#define IPSEC_IPR_POS 3 +#define IPSEC_PRIORITY 3 + +/* EDMAC */ +#define EDMAC0_IRQ 80 +#define EDMAC0_IPR_ADDR INTC_IPRG +#define EDMAC0_IPR_POS 3 +#define EDMAC0_PRIORITY 3 + +#define EDMAC1_IRQ 81 +#define EDMAC1_IPR_ADDR INTC_IPRG +#define EDMAC1_IPR_POS 2 +#define EDMAC1_PRIORITY 3 + +#define EDMAC2_IRQ 82 +#define EDMAC2_IPR_ADDR INTC_IPRG +#define EDMAC2_IPR_POS 1 +#define EDMAC2_PRIORITY 3 + +/* SIOF */ +#define SIOF0_ERI_IRQ 96 +#define SIOF0_TXI_IRQ 97 +#define SIOF0_RXI_IRQ 98 +#define SIOF0_CCI_IRQ 99 +#define SIOF0_IPR_ADDR INTC_IPRH +#define SIOF0_IPR_POS 0 +#define SIOF0_PRIORITY 7 + +#define SIOF1_ERI_IRQ 100 +#define SIOF1_TXI_IRQ 101 +#define SIOF1_RXI_IRQ 102 +#define SIOF1_CCI_IRQ 103 +#define SIOF1_IPR_ADDR INTC_IPRI +#define SIOF1_IPR_POS 1 +#define SIOF1_PRIORITY 7 +#endif /* CONFIG_CPU_SUBTYPE_SH7710 */ + +#if defined(CONFIG_CPU_SUBTYPE_SH7710) +#define PORT_PACR 0xa4050100UL +#define PORT_PBCR 0xa4050102UL +#define PORT_PCCR 0xa4050104UL +#define PORT_PETCR 0xa4050106UL +#define PORT_PADR 0xa4050120UL +#define PORT_PBDR 0xa4050122UL +#define PORT_PCDR 0xa4050124UL +#else #define PORT_PACR 0xa4000100UL #define PORT_PBCR 0xa4000102UL #define PORT_PCCR 0xa4000104UL @@ -501,6 +612,7 @@ #define PORT_PBDR 0xa4000122UL #define PORT_PCDR 0xa4000124UL #define PORT_PFDR 0xa400012aUL +#endif #define IRQ0_IRQ 32 #define IRQ1_IRQ 33 @@ -577,7 +689,7 @@ #define NR_INTC2_IRQS 64 #elif defined(CONFIG_CPU_SUBTYPE_SH7780) #define INTC2_BASE 0xffd40000 -#define INTC2_FIRST_IRQ 22 +#define INTC2_FIRST_IRQ 21 #define INTC2_INTMSK_OFFSET (0x38) #define INTC2_INTMSKCLR_OFFSET (0x3c) #define NR_INTC2_IRQS 60 @@ -594,6 +706,8 @@ #endif +extern int shmse_irq_demux(int irq); + static inline int generic_irq_demux(int irq) { return irq; @@ -605,8 +719,21 @@ #define irq_canonicalize(irq) (irq) #define irq_demux(irq) __irq_demux(sh_mv.mv_irq_demux(irq)) +#ifdef CONFIG_4KSTACKS +extern void irq_ctx_init(int cpu); +extern void irq_ctx_exit(int cpu); +# define __ARCH_HAS_DO_SOFTIRQ +#else +# define irq_ctx_init(cpu) do { } while (0) +# define irq_ctx_exit(cpu) do { } while (0) +#endif + #if defined(CONFIG_CPU_SUBTYPE_SH73180) #include <asm/irq-sh73180.h> #endif +#if defined(CONFIG_CPU_SUBTYPE_SH7343) +#include <asm/irq-sh7343.h> +#endif + #endif /* __ASM_SH_IRQ_H */
diff --git a/include/asm-sh/kexec.h b/include/asm-sh/kexec.h index 9dfe59f6..9d235af 100644 --- a/include/asm-sh/kexec.h +++ b/include/asm-sh/kexec.h
@@ -23,11 +23,10 @@ /* The native architecture */ #define KEXEC_ARCH KEXEC_ARCH_SH -#ifndef __ASSEMBLY__ +#define MAX_NOTE_BYTES 1024 -extern void machine_shutdown(void); -extern void *crash_notes; - -#endif /* __ASSEMBLY__ */ +/* Provide a dummy definition to avoid build failures. */ +static inline void crash_setup_regs(struct pt_regs *newregs, + struct pt_regs *oldregs) { } #endif /* _SH_KEXEC_H */
diff --git a/include/asm-sh/kgdb.h b/include/asm-sh/kgdb.h index 1653ffb..7b26f53 100644 --- a/include/asm-sh/kgdb.h +++ b/include/asm-sh/kgdb.h
@@ -128,4 +128,19 @@ #define KGDB_ASSERT(condition, message) #endif +/* Taken from sh-stub.c of GDB 4.18 */ +static const char hexchars[] = "0123456789abcdef"; + +/* Get high hex bits */ +static inline char highhex(const int x) +{ + return hexchars[(x >> 4) & 0xf]; +} + +/* Get low hex bits */ +static inline char lowhex(const int x) +{ + return hexchars[x & 0xf]; +} + #endif
diff --git a/include/asm-sh/landisk/gio.h b/include/asm-sh/landisk/gio.h new file mode 100644 index 0000000..3fce4c4 --- /dev/null +++ b/include/asm-sh/landisk/gio.h
@@ -0,0 +1,45 @@ +#ifndef __ASM_SH_LANDISK_GIO_H +#define __ASM_SH_LANDISK_GIO_H + +#include <linux/ioctl.h> + +/* version */ +#define VERSION_STR "1.00" + +/* Driver name */ +#define GIO_DRIVER_NAME "/dev/giodrv" + +/* Use 'k' as magic number */ +#define GIODRV_IOC_MAGIC 'k' + +#define GIODRV_IOCRESET _IO(GIODRV_IOC_MAGIC, 0) +/* + * S means "Set" through a ptr, + * T means "Tell" directly + * G means "Get" (to a pointed var) + * Q means "Query", response is on the return value + * X means "eXchange": G and S atomically + * H means "sHift": T and Q atomically + */ +#define GIODRV_IOCSGIODATA1 _IOW(GIODRV_IOC_MAGIC, 1, unsigned char *) +#define GIODRV_IOCGGIODATA1 _IOR(GIODRV_IOC_MAGIC, 2, unsigned char *) +#define GIODRV_IOCSGIODATA2 _IOW(GIODRV_IOC_MAGIC, 3, unsigned short *) +#define GIODRV_IOCGGIODATA2 _IOR(GIODRV_IOC_MAGIC, 4, unsigned short *) +#define GIODRV_IOCSGIODATA4 _IOW(GIODRV_IOC_MAGIC, 5, unsigned long *) +#define GIODRV_IOCGGIODATA4 _IOR(GIODRV_IOC_MAGIC, 6, unsigned long *) +#define GIODRV_IOCSGIOSETADDR _IOW(GIODRV_IOC_MAGIC, 7, unsigned long *) +#define GIODRV_IOCHARDRESET _IO(GIODRV_IOC_MAGIC, 8) /* debugging tool */ + +#define GIODRV_IOCSGIO_LED _IOW(GIODRV_IOC_MAGIC, 9, unsigned long *) +#define GIODRV_IOCGGIO_LED _IOR(GIODRV_IOC_MAGIC, 10, unsigned long *) +#define GIODRV_IOCSGIO_BUZZER _IOW(GIODRV_IOC_MAGIC, 11, unsigned long *) +#define GIODRV_IOCGGIO_LANDISK _IOR(GIODRV_IOC_MAGIC, 14, unsigned long *) +#define GIODRV_IOCGGIO_BTN _IOR(GIODRV_IOC_MAGIC, 22, unsigned long *) +#define GIODRV_IOCSGIO_BTNPID _IOW(GIODRV_IOC_MAGIC, 23, unsigned long *) +#define GIODRV_IOCGGIO_BTNPID _IOR(GIODRV_IOC_MAGIC, 24, unsigned long *) + +#define GIODRV_IOC_MAXNR 8 +#define GIO_READ 0x00000000 +#define GIO_WRITE 0x00000001 + +#endif /* __ASM_SH_LANDISK_GIO_H */
diff --git a/include/asm-sh/landisk/ide.h b/include/asm-sh/landisk/ide.h new file mode 100644 index 0000000..6490e28 --- /dev/null +++ b/include/asm-sh/landisk/ide.h
@@ -0,0 +1,14 @@ +/* + * modifed by kogiidena + * 2005.03.03 + */ + +#ifndef __ASM_SH_LANDISK_IDE_H +#define __ASM_SH_LANDISK_IDE_H + +/* Nothing to see here.. */ +#include <asm/landisk/iodata_landisk.h> +#define IRQ_CFCARD IRQ_FATA /* CF Card IRQ */ +#define IRQ_PCMCIA IRQ_ATA /* PCMCIA IRQ */ + +#endif /* __ASM_SH_LANDISK_IDE_H */
diff --git a/include/asm-sh/landisk/iodata_landisk.h b/include/asm-sh/landisk/iodata_landisk.h new file mode 100644 index 0000000..c74d3c7 --- /dev/null +++ b/include/asm-sh/landisk/iodata_landisk.h
@@ -0,0 +1,79 @@ +#ifndef __ASM_SH_IODATA_LANDISK_H +#define __ASM_SH_IODATA_LANDISK_H + +/* + * linux/include/asm-sh/landisk/iodata_landisk.h + * + * Copyright (C) 2000 Atom Create Engineering Co., Ltd. + * + * IO-DATA LANDISK support + */ + +/* Box specific addresses. */ + +#define PA_USB 0xa4000000 /* USB Controller M66590 */ + +#define PA_ATARST 0xb0000000 /* ATA/FATA Access Control Register */ +#define PA_LED 0xb0000001 /* LED Control Register */ +#define PA_STATUS 0xb0000002 /* Switch Status Register */ +#define PA_SHUTDOWN 0xb0000003 /* Shutdown Control Register */ +#define PA_PCIPME 0xb0000004 /* PCI PME Status Register */ +#define PA_IMASK 0xb0000005 /* Interrupt Mask Register */ +/* 2003.10.31 I-O DATA NSD NWG add. for shutdown port clear */ +#define PA_PWRINT_CLR 0xb0000006 /* Shutdown Interrupt clear Register */ + +#define PA_LCD_CLRDSP 0x00 /* LCD Clear Display Offset */ +#define PA_LCD_RTNHOME 0x00 /* LCD Return Home Offset */ +#define PA_LCD_ENTMODE 0x00 /* LCD Entry Mode Offset */ +#define PA_LCD_DSPCTL 0x00 /* LCD Display ON/OFF Control Offset */ +#define PA_LCD_FUNC 0x00 /* LCD Function Set Offset */ +#define PA_LCD_CGRAM 0x00 /* LCD Set CGRAM Address Offset */ +#define PA_LCD_DDRAM 0x00 /* LCD Set DDRAM Address Offset */ +#define PA_LCD_RDFLAG 0x01 /* LCD Read Busy Flag Offset */ +#define PA_LCD_WTDATA 0x02 /* LCD Write Datat to RAM Offset */ +#define PA_LCD_RDDATA 0x03 /* LCD Read Data from RAM Offset */ +#define PA_PIDE_OFFSET 0x40 /* CF IDE Offset */ +#define PA_SIDE_OFFSET 0x40 /* HDD IDE Offset */ + +#define IRQ_PCIINTA 5 /* PCI INTA IRQ */ +#define IRQ_PCIINTB 6 /* PCI INTB IRQ */ +#define IRQ_PCIINDC 7 /* PCI INTC IRQ */ +#define IRQ_PCIINTD 8 /* PCI INTD IRQ */ +#define IRQ_ATA 9 /* ATA IRQ */ +#define IRQ_FATA 10 /* FATA IRQ */ +#define IRQ_POWER 11 /* Power Switch IRQ */ +#define IRQ_BUTTON 12 /* USL-5P Button IRQ */ +#define IRQ_FAULT 13 /* USL-5P Fault IRQ */ + +#define SHUTDOWN_BTN_MAJOR 99 /* Shutdown button device major no. */ + +#define SHUTDOWN_LOOP_CNT 5 /* Shutdown button Detection loop */ +#define SHUTDOWN_DELAY 200 /* Shutdown button delay value(ms) */ + + +/* added by kogiidena */ +/* + * landisk_ledparam + * + * led ------10 -6543210 -6543210 -6543210 + * |000000..|0.......|0.......|U.......| + * | HARD |fastblik| blink | on | + * + * led0: power U:update flag + * led1: error + * led2: usb1 + * led3: usb2 + * led4: usb3 + * led5: usb4 + * led6: usb5 + * + */ +extern int landisk_ledparam; /* from setup.c */ +extern int landisk_buzzerparam; /* from setup.c */ +extern int landisk_arch; /* from setup.c */ + +#define __IO_PREFIX landisk +#include <asm/io_generic.h> + +#endif /* __ASM_SH_IODATA_LANDISK_H */ +
diff --git a/include/asm-sh/machvec.h b/include/asm-sh/machvec.h index 550501f..70389b7 100644 --- a/include/asm-sh/machvec.h +++ b/include/asm-sh/machvec.h
@@ -8,17 +8,18 @@ */ #ifndef _ASM_SH_MACHVEC_H -#define _ASM_SH_MACHVEC_H 1 +#define _ASM_SH_MACHVEC_H #include <linux/types.h> #include <linux/time.h> - #include <asm/machtypes.h> #include <asm/machvec_init.h> struct device; struct sh_machine_vector { + void (*mv_setup)(char **cmdline_p); + const char *mv_name; int mv_nr_irqs; u8 (*mv_inb)(unsigned long); @@ -65,4 +66,6 @@ extern struct sh_machine_vector sh_mv; +#define get_system_type() sh_mv.mv_name + #endif /* _ASM_SH_MACHVEC_H */
diff --git a/include/asm-sh/mc146818rtc.h b/include/asm-sh/mc146818rtc.h index 1707cfb..0aee96a 100644 --- a/include/asm-sh/mc146818rtc.h +++ b/include/asm-sh/mc146818rtc.h
@@ -4,173 +4,4 @@ #ifndef _ASM_MC146818RTC_H #define _ASM_MC146818RTC_H -#ifdef CONFIG_SH_MPC1211 -#undef _ASM_MC146818RTC_H -#undef RTC_IRQ -#include <asm/mpc1211/mc146818rtc.h> -#else - -#include <asm/rtc.h> - -#define RTC_ALWAYS_BCD 1 - -/* FIXME:RTC Interrupt feature is not implemented yet. */ -#undef RTC_IRQ -#define RTC_IRQ 0 - -#if defined(CONFIG_CPU_SH3) -#define RTC_PORT(n) (R64CNT+(n)*2) -#define CMOS_READ(addr) __CMOS_READ(addr,b) -#define CMOS_WRITE(val,addr) __CMOS_WRITE(val,addr,b) - -#elif defined(CONFIG_SH_SECUREEDGE5410) -#include <asm/snapgear/io.h> - -#define RTC_PORT(n) SECUREEDGE_IOPORT_ADDR -#define CMOS_READ(addr) secureedge5410_cmos_read(addr) -#define CMOS_WRITE(val,addr) secureedge5410_cmos_write(val,addr) -extern unsigned char secureedge5410_cmos_read(int addr); -extern void secureedge5410_cmos_write(unsigned char val, int addr); - -#elif defined(CONFIG_CPU_SH4) -#define RTC_PORT(n) (R64CNT+(n)*4) -#define CMOS_READ(addr) __CMOS_READ(addr,w) -#define CMOS_WRITE(val,addr) __CMOS_WRITE(val,addr,w) -#endif - -#define __CMOS_READ(addr, s) ({ \ - unsigned char val=0, rcr1, rcr2, r64cnt, retry; \ - switch(addr) { \ - case RTC_SECONDS: \ - val = ctrl_inb(RSECCNT); \ - break; \ - case RTC_SECONDS_ALARM: \ - val = ctrl_inb(RSECAR); \ - break; \ - case RTC_MINUTES: \ - val = ctrl_inb(RMINCNT); \ - break; \ - case RTC_MINUTES_ALARM: \ - val = ctrl_inb(RMINAR); \ - break; \ - case RTC_HOURS: \ - val = ctrl_inb(RHRCNT); \ - break; \ - case RTC_HOURS_ALARM: \ - val = ctrl_inb(RHRAR); \ - break; \ - case RTC_DAY_OF_WEEK: \ - val = ctrl_inb(RWKCNT); \ - break; \ - case RTC_DAY_OF_MONTH: \ - val = ctrl_inb(RDAYCNT); \ - break; \ - case RTC_MONTH: \ - val = ctrl_inb(RMONCNT); \ - break; \ - case RTC_YEAR: \ - val = ctrl_in##s(RYRCNT); \ - break; \ - case RTC_REG_A: /* RTC_FREQ_SELECT */ \ - rcr2 = ctrl_inb(RCR2); \ - val = (rcr2 & RCR2_PESMASK) >> 4; \ - rcr1 = ctrl_inb(RCR1); \ - rcr1 = (rcr1 & (RCR1_CIE | RCR1_AIE)) | RCR1_AF;\ - retry = 0; \ - do { \ - ctrl_outb(rcr1, RCR1); /* clear CF */ \ - r64cnt = ctrl_inb(R64CNT); \ - } while((ctrl_inb(RCR1) & RCR1_CF) && retry++ < 1000);\ - r64cnt ^= RTC_BIT_INVERTED; \ - if(r64cnt == 0x7f || r64cnt == 0) \ - val |= RTC_UIP; \ - break; \ - case RTC_REG_B: /* RTC_CONTROL */ \ - rcr1 = ctrl_inb(RCR1); \ - rcr2 = ctrl_inb(RCR2); \ - if(rcr1 & RCR1_CIE) val |= RTC_UIE; \ - if(rcr1 & RCR1_AIE) val |= RTC_AIE; \ - if(rcr2 & RCR2_PESMASK) val |= RTC_PIE; \ - if(!(rcr2 & RCR2_START))val |= RTC_SET; \ - val |= RTC_24H; \ - break; \ - case RTC_REG_C: /* RTC_INTR_FLAGS */ \ - rcr1 = ctrl_inb(RCR1); \ - rcr1 &= ~(RCR1_CF | RCR1_AF); \ - ctrl_outb(rcr1, RCR1); \ - rcr2 = ctrl_inb(RCR2); \ - rcr2 &= ~RCR2_PEF; \ - ctrl_outb(rcr2, RCR2); \ - break; \ - case RTC_REG_D: /* RTC_VALID */ \ - /* Always valid ... */ \ - val = RTC_VRT; \ - break; \ - default: \ - break; \ - } \ - val; \ -}) - -#define __CMOS_WRITE(val, addr, s) ({ \ - unsigned char rcr1,rcr2; \ - switch(addr) { \ - case RTC_SECONDS: \ - ctrl_outb(val, RSECCNT); \ - break; \ - case RTC_SECONDS_ALARM: \ - ctrl_outb(val, RSECAR); \ - break; \ - case RTC_MINUTES: \ - ctrl_outb(val, RMINCNT); \ - break; \ - case RTC_MINUTES_ALARM: \ - ctrl_outb(val, RMINAR); \ - break; \ - case RTC_HOURS: \ - ctrl_outb(val, RHRCNT); \ - break; \ - case RTC_HOURS_ALARM: \ - ctrl_outb(val, RHRAR); \ - break; \ - case RTC_DAY_OF_WEEK: \ - ctrl_outb(val, RWKCNT); \ - break; \ - case RTC_DAY_OF_MONTH: \ - ctrl_outb(val, RDAYCNT); \ - break; \ - case RTC_MONTH: \ - ctrl_outb(val, RMONCNT); \ - break; \ - case RTC_YEAR: \ - ctrl_out##s((ctrl_in##s(RYRCNT) & 0xff00) | (val & 0xff), RYRCNT);\ - break; \ - case RTC_REG_A: /* RTC_FREQ_SELECT */ \ - rcr2 = ctrl_inb(RCR2); \ - if((val & RTC_DIV_CTL) == RTC_DIV_RESET2) \ - rcr2 |= RCR2_RESET; \ - ctrl_outb(rcr2, RCR2); \ - break; \ - case RTC_REG_B: /* RTC_CONTROL */ \ - rcr1 = (ctrl_inb(RCR1) & 0x99) | RCR1_AF; \ - if(val & RTC_AIE) rcr1 |= RCR1_AIE; \ - else rcr1 &= ~RCR1_AIE; \ - if(val & RTC_UIE) rcr1 |= RCR1_CIE; \ - else rcr1 &= ~RCR1_CIE; \ - ctrl_outb(rcr1, RCR1); \ - rcr2 = ctrl_inb(RCR2); \ - if(val & RTC_SET) rcr2 &= ~RCR2_START; \ - else rcr2 |= RCR2_START; \ - ctrl_outb(rcr2, RCR2); \ - break; \ - case RTC_REG_C: /* RTC_INTR_FLAGS */ \ - break; \ - case RTC_REG_D: /* RTC_VALID */ \ - break; \ - default: \ - break; \ - } \ -}) - -#endif /* CONFIG_SH_MPC1211 */ #endif /* _ASM_MC146818RTC_H */
diff --git a/include/asm-sh/mmu.h b/include/asm-sh/mmu.h index 72f07be..cf47df7 100644 --- a/include/asm-sh/mmu.h +++ b/include/asm-sh/mmu.h
@@ -3,27 +3,76 @@ #if !defined(CONFIG_MMU) -struct mm_rblock_struct { - int size; - int refcount; - void *kblock; -}; - -struct mm_tblock_struct { - struct mm_rblock_struct *rblock; - struct mm_tblock_struct *next; -}; - typedef struct { - struct mm_tblock_struct tblock; + struct vm_list_struct *vmlist; unsigned long end_brk; } mm_context_t; #else /* Default "unsigned long" context */ -typedef unsigned long mm_context_t; +typedef unsigned long mm_context_id_t; + +typedef struct { + mm_context_id_t id; + void *vdso; +} mm_context_t; #endif /* CONFIG_MMU */ -#endif /* __MMH_H */ + +/* + * Privileged Space Mapping Buffer (PMB) definitions + */ +#define PMB_PASCR 0xff000070 +#define PMB_IRMCR 0xff000078 + +#define PMB_ADDR 0xf6100000 +#define PMB_DATA 0xf7100000 +#define PMB_ENTRY_MAX 16 +#define PMB_E_MASK 0x0000000f +#define PMB_E_SHIFT 8 + +#define PMB_SZ_16M 0x00000000 +#define PMB_SZ_64M 0x00000010 +#define PMB_SZ_128M 0x00000080 +#define PMB_SZ_512M 0x00000090 +#define PMB_SZ_MASK PMB_SZ_512M +#define PMB_C 0x00000008 +#define PMB_WT 0x00000001 +#define PMB_UB 0x00000200 +#define PMB_V 0x00000100 + +#define PMB_NO_ENTRY (-1) + +struct pmb_entry; + +struct pmb_entry { + unsigned long vpn; + unsigned long ppn; + unsigned long flags; + + /* + * 0 .. NR_PMB_ENTRIES for specific entry selection, or + * PMB_NO_ENTRY to search for a free one + */ + int entry; + + struct pmb_entry *next; + /* Adjacent entry link for contiguous multi-entry mappings */ + struct pmb_entry *link; +}; + +/* arch/sh/mm/pmb.c */ +int __set_pmb_entry(unsigned long vpn, unsigned long ppn, + unsigned long flags, int *entry); +int set_pmb_entry(struct pmb_entry *pmbe); +void clear_pmb_entry(struct pmb_entry *pmbe); +struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn, + unsigned long flags); +void pmb_free(struct pmb_entry *pmbe); +long pmb_remap(unsigned long virt, unsigned long phys, + unsigned long size, unsigned long flags); +void pmb_unmap(unsigned long addr); + +#endif /* __MMU_H */
diff --git a/include/asm-sh/mmu_context.h b/include/asm-sh/mmu_context.h index 6760d06..c7088ef 100644 --- a/include/asm-sh/mmu_context.h +++ b/include/asm-sh/mmu_context.h
@@ -49,7 +49,7 @@ unsigned long mc = mmu_context_cache; /* Check if we have old version of context. */ - if (((mm->context ^ mc) & MMU_CONTEXT_VERSION_MASK) == 0) + if (((mm->context.id ^ mc) & MMU_CONTEXT_VERSION_MASK) == 0) /* It's up to date, do nothing */ return; @@ -68,7 +68,7 @@ if (!mc) mmu_context_cache = mc = MMU_CONTEXT_FIRST_VERSION; } - mm->context = mc; + mm->context.id = mc; } /* @@ -78,7 +78,7 @@ static __inline__ int init_new_context(struct task_struct *tsk, struct mm_struct *mm) { - mm->context = NO_CONTEXT; + mm->context.id = NO_CONTEXT; return 0; } @@ -123,7 +123,7 @@ static __inline__ void activate_context(struct mm_struct *mm) { get_mmu_context(mm); - set_asid(mm->context & MMU_CONTEXT_ASID_MASK); + set_asid(mm->context.id & MMU_CONTEXT_ASID_MASK); } /* MMU_TTB can be used for optimizing the fault handling. @@ -174,9 +174,7 @@ { /* Enable MMU */ ctrl_outl(MMU_CONTROL_INIT, MMUCR); - - /* The manual suggests doing some nops after turning on the MMU */ - __asm__ __volatile__ ("nop;nop;nop;nop;nop;nop;nop;nop\n\t"); + ctrl_barrier(); if (mmu_context_cache == NO_CONTEXT) mmu_context_cache = MMU_CONTEXT_FIRST_VERSION; @@ -191,7 +189,8 @@ cr = ctrl_inl(MMUCR); cr &= ~MMU_CONTROL_INIT; ctrl_outl(cr, MMUCR); - __asm__ __volatile__ ("nop;nop;nop;nop;nop;nop;nop;nop\n\t"); + + ctrl_barrier(); } #else /*
diff --git a/include/asm-sh/overdrive/fpga.h b/include/asm-sh/overdrive/fpga.h deleted file mode 100644 index 1cd8799..0000000 --- a/include/asm-sh/overdrive/fpga.h +++ /dev/null
@@ -1,15 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - */ - -#ifndef __FPGA_OD_H__ -#define __FPGA_OD_H__ - -/* This routine will program up the fpga which interfaces to the galileo */ -int init_overdrive_fpga(void); - -#endif
diff --git a/include/asm-sh/overdrive/gt64111.h b/include/asm-sh/overdrive/gt64111.h deleted file mode 100644 index 01d58bc..0000000 --- a/include/asm-sh/overdrive/gt64111.h +++ /dev/null
@@ -1,109 +0,0 @@ -#ifndef _GT64111_H_ -#define _GT64111_H_ - -#define MASTER_INTERFACE 0x0 -#define RAS10_LO_DEC_ADR 0x8 -#define RAS10_HI_DEC_ADR 0x10 -#define RAS32_LO_DEC_ADR 0x18 -#define RAS32_HI_DEC_ADR 0x20 -#define CS20_LO_DEC_ADR 0x28 -#define CS20_HI_DEC_ADR 0x30 -#define CS3_LO_DEC_ADR 0x38 -#define CS3_HI_DEC_ADR 0x40 -#define PCI_IO_LO_DEC_ADR 0x48 -#define PCI_IO_HI_DEC_ADR 0x50 -#define PCI_MEM0_LO_DEC_ADR 0x58 -#define PCI_MEM0_HI_DEC_ADR 0x60 -#define INTERNAL_SPACE_DEC 0x68 -#define BUS_ERR_ADR_LO_CPU 0x70 -#define READONLY0 0x78 -#define PCI_MEM1_LO_DEC_ADR 0x80 -#define PCI_MEM1_HI_DEC_ADR 0x88 -#define RAS0_LO_DEC_ADR 0x400 -#define RAS0_HI_DEC_ADR 0x404 -#define RAS1_LO_DEC_ADR 0x408 -#define RAS1_HI_DEC_ADR 0x40c -#define RAS2_LO_DEC_ADR 0x410 -#define RAS2_HI_DEC_ADR 0x414 -#define RAS3_LO_DEC_ADR 0x418 -#define RAS3_HI_DEC_ADR 0x41c -#define DEV_CS0_LO_DEC_ADR 0x420 -#define DEV_CS0_HI_DEC_ADR 0x424 -#define DEV_CS1_LO_DEC_ADR 0x428 -#define DEV_CS1_HI_DEC_ADR 0x42c -#define DEV_CS2_LO_DEC_ADR 0x430 -#define DEV_CS2_HI_DEC_ADR 0x434 -#define DEV_CS3_LO_DEC_ADR 0x438 -#define DEV_CS3_HI_DEC_ADR 0x43c -#define DEV_BOOTCS_LO_DEC_ADR 0x440 -#define DEV_BOOTCS_HI_DEC_ADR 0x444 -#define DEV_ADR_DEC_ERR 0x470 -#define DRAM_CFG 0x448 -#define DRAM_BANK0_PARMS 0x44c -#define DRAM_BANK1_PARMS 0x450 -#define DRAM_BANK2_PARMS 0x454 -#define DRAM_BANK3_PARMS 0x458 -#define DEV_BANK0_PARMS 0x45c -#define DEV_BANK1_PARMS 0x460 -#define DEV_BANK2_PARMS 0x464 -#define DEV_BANK3_PARMS 0x468 -#define DEV_BOOT_BANK_PARMS 0x46c -#define CH0_DMA_BYTECOUNT 0x800 -#define CH1_DMA_BYTECOUNT 0x804 -#define CH2_DMA_BYTECOUNT 0x808 -#define CH3_DMA_BYTECOUNT 0x80c -#define CH0_DMA_SRC_ADR 0x810 -#define CH1_DMA_SRC_ADR 0x814 -#define CH2_DMA_SRC_ADR 0x818 -#define CH3_DMA_SRC_ADR 0x81c -#define CH0_DMA_DST_ADR 0x820 -#define CH1_DMA_DST_ADR 0x824 -#define CH2_DMA_DST_ADR 0x828 -#define CH3_DMA_DST_ADR 0x82c -#define CH0_NEXT_REC_PTR 0x830 -#define CH1_NEXT_REC_PTR 0x834 -#define CH2_NEXT_REC_PTR 0x838 -#define CH3_NEXT_REC_PTR 0x83c -#define CH0_CTRL 0x840 -#define CH1_CTRL 0x844 -#define CH2_CTRL 0x848 -#define CH3_CTRL 0x84c -#define DMA_ARBITER 0x860 -#define TIMER0 0x850 -#define TIMER1 0x854 -#define TIMER2 0x858 -#define TIMER3 0x85c -#define TIMER_CTRL 0x864 -#define PCI_CMD 0xc00 -#define PCI_TIMEOUT 0xc04 -#define PCI_RAS10_BANK_SIZE 0xc08 -#define PCI_RAS32_BANK_SIZE 0xc0c -#define PCI_CS20_BANK_SIZE 0xc10 -#define PCI_CS3_BANK_SIZE 0xc14 -#define PCI_SERRMASK 0xc28 -#define PCI_INTACK 0xc34 -#define PCI_BAR_EN 0xc3c -#define PCI_CFG_ADR 0xcf8 -#define PCI_CFG_DATA 0xcfc -#define PCI_INTCAUSE 0xc18 -#define PCI_MAST_MASK 0xc1c -#define PCI_PCIMASK 0xc24 -#define BAR_ENABLE_ADR 0xc3c - -/* These are config registers, accessible via PCI space */ -#define PCI_CONFIG_RAS10_BASE_ADR 0x010 -#define PCI_CONFIG_RAS32_BASE_ADR 0x014 -#define PCI_CONFIG_CS20_BASE_ADR 0x018 -#define PCI_CONFIG_CS3_BASE_ADR 0x01c -#define PCI_CONFIG_INT_REG_MM_ADR 0x020 -#define PCI_CONFIG_INT_REG_IO_ADR 0x024 -#define PCI_CONFIG_BOARD_VENDOR 0x02c -#define PCI_CONFIG_ROM_ADR 0x030 -#define PCI_CONFIG_INT_PIN_LINE 0x03c - - - - - -#endif -
diff --git a/include/asm-sh/overdrive/io.h b/include/asm-sh/overdrive/io.h deleted file mode 100644 index 0dba700..0000000 --- a/include/asm-sh/overdrive/io.h +++ /dev/null
@@ -1,39 +0,0 @@ -/* - * include/asm-sh/io_od.h - * - * Copyright 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * IO functions for an STMicroelectronics Overdrive - */ - -#ifndef _ASM_SH_IO_OD_H -#define _ASM_SH_IO_OD_H - -extern unsigned char od_inb(unsigned long port); -extern unsigned short od_inw(unsigned long port); -extern unsigned int od_inl(unsigned long port); - -extern void od_outb(unsigned char value, unsigned long port); -extern void od_outw(unsigned short value, unsigned long port); -extern void od_outl(unsigned int value, unsigned long port); - -extern unsigned char od_inb_p(unsigned long port); -extern unsigned short od_inw_p(unsigned long port); -extern unsigned int od_inl_p(unsigned long port); -extern void od_outb_p(unsigned char value, unsigned long port); -extern void od_outw_p(unsigned short value, unsigned long port); -extern void od_outl_p(unsigned int value, unsigned long port); - -extern void od_insb(unsigned long port, void *addr, unsigned long count); -extern void od_insw(unsigned long port, void *addr, unsigned long count); -extern void od_insl(unsigned long port, void *addr, unsigned long count); -extern void od_outsb(unsigned long port, const void *addr, unsigned long count); -extern void od_outsw(unsigned long port, const void *addr, unsigned long count); -extern void od_outsl(unsigned long port, const void *addr, unsigned long count); - -extern unsigned long od_isa_port2addr(unsigned long offset); - -#endif /* _ASM_SH_IO_OD_H */
diff --git a/include/asm-sh/overdrive/overdrive.h b/include/asm-sh/overdrive/overdrive.h deleted file mode 100644 index fc746c2..0000000 --- a/include/asm-sh/overdrive/overdrive.h +++ /dev/null
@@ -1,88 +0,0 @@ -/* - * Copyright (C) 2000 David J. Mckay (david.mckay@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - */ - - -#ifndef __OVERDRIVE_H__ -#define __OVERDRIVE_H__ - -#define OVERDRIVE_INT_CT 0xa3a00000 -#define OVERDRIVE_INT_DT 0xa3b00000 - -#define OVERDRIVE_CTRL 0xa3000000 - -/* Shoving all these bits into the same register is not a good idea. - * As soon as I get a spare moment, I'll change the FPGA and put each - * bit in a separate register - */ - -#define VALID_CTRL_BITS 0x1f - -#define ENABLE_RS232_MASK 0x1e -#define DISABLE_RS232_BIT 0x01 - -#define ENABLE_NMI_MASK 0x1d -#define DISABLE_NMI_BIT 0x02 - -#define RESET_PCI_MASK 0x1b -#define ENABLE_PCI_BIT 0x04 - -#define ENABLE_LED_MASK 0x17 -#define DISABLE_LED_BIT 0x08 - -#define RESET_FPGA_MASK 0x0f -#define ENABLE_FPGA_BIT 0x10 - - -#define FPGA_DCLK_ADDRESS 0xA3C00000 - -#define FPGA_DATA 0x01 /* W */ -#define FPGA_CONFDONE 0x02 /* R */ -#define FPGA_NOT_STATUS 0x04 /* R */ -#define FPGA_INITDONE 0x08 /* R */ - -#define FPGA_TIMEOUT 100000 - - -/* Interrupts for the overdrive. Note that these numbers have - * nothing to do with the actual IRQ numbers they appear on, - * this is all programmable. This is simply the position in the - * INT_CT register. - */ - -#define OVERDRIVE_PCI_INTA 0 -#define OVERDRIVE_PCI_INTB 1 -#define OVERDRIVE_PCI_INTC 2 -#define OVERDRIVE_PCI_INTD 3 -#define OVERDRIVE_GALILEO_INT 4 -#define OVERDRIVE_GALILEO_LOCAL_INT 5 -#define OVERDRIVE_AUDIO_INT 6 -#define OVERDRIVE_KEYBOARD_INT 7 - -/* Which Linux IRQ should we assign to each interrupt source? */ -#define OVERDRIVE_PCI_IRQ1 2 -#ifdef CONFIG_HACKED_NE2K -#define OVERDRIVE_PCI_IRQ2 7 -#else -#define OVERDRIVE_PCI_IRQ2 2 -#undef OVERDRIVE_PCI_INTB -#define OVERDRIVE_PCI_INTB OVERDRIVE_PCI_INTA - -#endif - -/* Put the ESS solo audio chip on IRQ 4 */ -#define OVERDRIVE_ESS_IRQ 4 - -/* Where the memory behind the PCI bus appears */ -#define PCI_DRAM_BASE 0xb7000000 -#define PCI_DRAM_SIZE (16*1024*1024) -#define PCI_DRAM_FINISH (PCI_DRAM_BASE+PCI_DRAM_SIZE-1) - -/* Where the IO region appears in the memory */ -#define PCI_GTIO_BASE 0xb8000000 - -#endif
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index 6f7eb8a..ca8b26d 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h
@@ -16,7 +16,13 @@ /* PAGE_SHIFT determines the page size */ #define PAGE_SHIFT 12 + +#ifdef __ASSEMBLY__ +#define PAGE_SIZE (1 << PAGE_SHIFT) +#else #define PAGE_SIZE (1UL << PAGE_SHIFT) +#endif + #define PAGE_MASK (~(PAGE_SIZE-1)) #define PTE_MASK PAGE_MASK @@ -30,7 +36,6 @@ #define HPAGE_SIZE (1UL << HPAGE_SHIFT) #define HPAGE_MASK (~(HPAGE_SIZE-1)) #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT-PAGE_SHIFT) -#define ARCH_HAS_SETCLEAR_HUGE_PTE #endif #ifdef __KERNEL__ @@ -39,10 +44,18 @@ extern void (*clear_page)(void *to); extern void (*copy_page)(void *to, void *from); +extern unsigned long shm_align_mask; + +#ifdef CONFIG_MMU extern void clear_page_slow(void *to); extern void copy_page_slow(void *to, void *from); +#else +extern void clear_page_nommu(void *to); +extern void copy_page_nommu(void *to, void *from); +#endif -#if defined(CONFIG_SH7705_CACHE_32KB) && defined(CONFIG_MMU) +#if defined(CONFIG_MMU) && (defined(CONFIG_CPU_SH4) || \ + defined(CONFIG_SH7705_CACHE_32KB)) struct page; extern void clear_user_page(void *to, unsigned long address, struct page *pg); extern void copy_user_page(void *to, void *from, unsigned long address, struct page *pg); @@ -51,29 +64,20 @@ #elif defined(CONFIG_CPU_SH2) || defined(CONFIG_CPU_SH3) || !defined(CONFIG_MMU) #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) -#elif defined(CONFIG_CPU_SH4) -struct page; -extern void clear_user_page(void *to, unsigned long address, struct page *pg); -extern void copy_user_page(void *to, void *from, unsigned long address, struct page *pg); -extern void __clear_user_page(void *to, void *orig_to); -extern void __copy_user_page(void *to, void *from, void *orig_to); #endif /* * These are used to make use of C type-checking.. */ typedef struct { unsigned long pte; } pte_t; -typedef struct { unsigned long pmd; } pmd_t; typedef struct { unsigned long pgd; } pgd_t; typedef struct { unsigned long pgprot; } pgprot_t; #define pte_val(x) ((x).pte) -#define pmd_val(x) ((x).pmd) #define pgd_val(x) ((x).pgd) #define pgprot_val(x) ((x).pgprot) #define __pte(x) ((pte_t) { (x) } ) -#define __pmd(x) ((pmd_t) { (x) } ) #define __pgd(x) ((pgd_t) { (x) } ) #define __pgprot(x) ((pgprot_t) { (x) } ) @@ -93,7 +97,7 @@ #define __MEMORY_START CONFIG_MEMORY_START #define __MEMORY_SIZE CONFIG_MEMORY_SIZE -#define PAGE_OFFSET (0x80000000UL) +#define PAGE_OFFSET CONFIG_PAGE_OFFSET #define __pa(x) ((unsigned long)(x)-PAGE_OFFSET) #define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) @@ -115,5 +119,10 @@ #include <asm-generic/memory_model.h> #include <asm-generic/page.h> +/* vDSO support */ +#ifdef CONFIG_VSYSCALL +#define __HAVE_ARCH_GATE_AREA +#endif + #endif /* __KERNEL__ */ #endif /* __ASM_SH_PAGE_H */
diff --git a/include/asm-sh/pci.h b/include/asm-sh/pci.h index 0a523c8..6ccc948 100644 --- a/include/asm-sh/pci.h +++ b/include/asm-sh/pci.h
@@ -32,6 +32,34 @@ #define PCIBIOS_MIN_IO board_pci_channels->io_resource->start #define PCIBIOS_MIN_MEM board_pci_channels->mem_resource->start +/* + * I/O routine helpers + */ +#ifdef CONFIG_CPU_SUBTYPE_SH7780 +#define PCI_IO_AREA 0xFE400000 +#define PCI_IO_SIZE 0x00400000 +#else +#define PCI_IO_AREA 0xFE240000 +#define PCI_IO_SIZE 0X00040000 +#endif + +#define PCI_MEM_SIZE 0x01000000 + +#define SH4_PCIIOBR_MASK 0xFFFC0000 +#define pci_ioaddr(addr) (PCI_IO_AREA + (addr & ~SH4_PCIIOBR_MASK)) + +#if defined(CONFIG_PCI) +#define is_pci_ioaddr(port) \ + (((port) >= PCIBIOS_MIN_IO) && \ + ((port) < (PCIBIOS_MIN_IO + PCI_IO_SIZE))) +#define is_pci_memaddr(port) \ + (((port) >= PCIBIOS_MIN_MEM) && \ + ((port) < (PCIBIOS_MIN_MEM + PCI_MEM_SIZE))) +#else +#define is_pci_ioaddr(port) (0) +#define is_pci_memaddr(port) (0) +#endif + struct pci_dev; extern void pcibios_set_master(struct pci_dev *dev); @@ -87,15 +115,6 @@ */ #define pci_dac_dma_supported(pci_dev, mask) (0) -/* These macros should be used after a pci_map_sg call has been done - * to get bus addresses of each of the SG entries and their lengths. - * You should only work with the number of sg entries pci_map_sg - * returns, or alternatively stop on the first sg_dma_len(sg) which - * is 0. - */ -#define sg_dma_address(sg) (virt_to_bus((sg)->dma_address)) -#define sg_dma_len(sg) ((sg)->length) - #ifdef CONFIG_PCI static inline void pci_dma_burst_advice(struct pci_dev *pdev, enum pci_dma_burst_strategy *strat, @@ -107,11 +126,12 @@ #endif /* Board-specific fixup routines. */ -extern void pcibios_fixup(void); -extern void pcibios_fixup_irqs(void); +void pcibios_fixup(void); +int pcibios_init_platform(void); +int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin); #ifdef CONFIG_PCI_AUTO -extern int pciauto_assign_resources(int busno, struct pci_channel *hose); +int pciauto_assign_resources(int busno, struct pci_channel *hose); #endif static inline void pcibios_add_platform_entries(struct pci_dev *dev)
diff --git a/include/asm-sh/pgalloc.h b/include/asm-sh/pgalloc.h index f4f233f..e841465 100644 --- a/include/asm-sh/pgalloc.h +++ b/include/asm-sh/pgalloc.h
@@ -1,15 +1,6 @@ #ifndef __ASM_SH_PGALLOC_H #define __ASM_SH_PGALLOC_H -#include <linux/threads.h> -#include <linux/slab.h> -#include <linux/mm.h> - -#define pgd_quicklist ((unsigned long *)0) -#define pmd_quicklist ((unsigned long *)0) -#define pte_quicklist ((unsigned long *)0) -#define pgtable_cache_size 0L - #define pmd_populate_kernel(mm, pmd, pte) \ set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))) @@ -24,38 +15,24 @@ */ static inline pgd_t *pgd_alloc(struct mm_struct *mm) { - unsigned int pgd_size = (USER_PTRS_PER_PGD * sizeof(pgd_t)); - pgd_t *pgd = (pgd_t *)kmalloc(pgd_size, GFP_KERNEL); - - if (pgd) - memset(pgd, 0, pgd_size); - - return pgd; + return (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); } static inline void pgd_free(pgd_t *pgd) { - kfree(pgd); + free_page((unsigned long)pgd); } static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) { - pte_t *pte; - - pte = (pte_t *) __get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); - - return pte; + return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); } static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address) { - struct page *pte; - - pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0); - - return pte; + return alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); } static inline void pte_free_kernel(pte_t *pte) @@ -75,14 +52,8 @@ * inside the pgd, so has no extra memory associated with it. */ -#define pmd_alloc_one(mm, addr) ({ BUG(); ((pmd_t *)2); }) #define pmd_free(x) do { } while (0) #define __pmd_free_tlb(tlb,x) do { } while (0) -#define pgd_populate(mm, pmd, pte) BUG() #define check_pgt_cache() do { } while (0) -#ifdef CONFIG_CPU_SH4 -#define PG_mapped PG_arch_1 -#endif - #endif /* __ASM_SH_PGALLOC_H */
diff --git a/include/asm-sh/pgtable-2level.h b/include/asm-sh/pgtable-2level.h index b0528aa..b525db6 100644 --- a/include/asm-sh/pgtable-2level.h +++ b/include/asm-sh/pgtable-2level.h
@@ -50,9 +50,12 @@ #define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) #define set_pgd(pgdptr, pgdval) (*(pgdptr) = pgdval) -#define pgd_page(pgd) \ +#define pgd_page_vaddr(pgd) \ ((unsigned long) __va(pgd_val(pgd) & PAGE_MASK)) +#define pgd_page(pgd) \ + (phys_to_page(pgd_val(pgd))) + static inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address) { return (pmd_t *) dir;
diff --git a/include/asm-sh/pgtable.h b/include/asm-sh/pgtable.h index dcd23a0..2c8682a 100644 --- a/include/asm-sh/pgtable.h +++ b/include/asm-sh/pgtable.h
@@ -1,42 +1,42 @@ +/* + * This file contains the functions and defines necessary to modify and + * use the SuperH page table tree. + * + * Copyright (C) 1999 Niibe Yutaka + * Copyright (C) 2002 - 2005 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file "COPYING" in the main directory of this + * archive for more details. + */ #ifndef __ASM_SH_PGTABLE_H #define __ASM_SH_PGTABLE_H -#include <asm-generic/4level-fixup.h> +#include <asm-generic/pgtable-nopmd.h> +#include <asm/page.h> -/* - * Copyright (C) 1999 Niibe Yutaka - * Copyright (C) 2002, 2003, 2004 Paul Mundt - */ +#define PTRS_PER_PGD 1024 -#include <asm/pgtable-2level.h> - -/* - * This file contains the functions and defines necessary to modify and use - * the SuperH page table tree. - */ #ifndef __ASSEMBLY__ -#include <asm/processor.h> #include <asm/addrspace.h> #include <asm/fixmap.h> -#include <linux/threads.h> extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; extern void paging_init(void); /* - * Basically we have the same two-level (which is the logical three level - * Linux page table layout folded) page tables as the i386. - */ - -/* * ZERO_PAGE is a global shared page that is always zero: used * for zero-mapped memory areas etc.. */ -extern unsigned long empty_zero_page[1024]; +extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]; #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page)) #endif /* !__ASSEMBLY__ */ +/* traditional two-level paging structure */ +#define PGDIR_SHIFT 22 +#define PTRS_PER_PMD 1 +#define PTRS_PER_PTE 1024 #define PMD_SIZE (1UL << PMD_SHIFT) #define PMD_MASK (~(PMD_SIZE-1)) #define PGDIR_SIZE (1UL << PGDIR_SHIFT) @@ -47,7 +47,6 @@ #define PTE_PHYS_MASK 0x1ffff000 -#ifndef __ASSEMBLY__ /* * First 1MB map is used by fixed purpose. * Currently only 4-enty (16kB) is used (see arch/sh/mm/cache.c) @@ -55,20 +54,41 @@ #define VMALLOC_START (P3SEG+0x00100000) #define VMALLOC_END (FIXADDR_START-2*PAGE_SIZE) -#define _PAGE_WT 0x001 /* WT-bit on SH-4, 0 on SH-3 */ -#define _PAGE_HW_SHARED 0x002 /* SH-bit : page is shared among processes */ -#define _PAGE_DIRTY 0x004 /* D-bit : page changed */ -#define _PAGE_CACHABLE 0x008 /* C-bit : cachable */ -#define _PAGE_SZ0 0x010 /* SZ0-bit : Size of page */ -#define _PAGE_RW 0x020 /* PR0-bit : write access allowed */ -#define _PAGE_USER 0x040 /* PR1-bit : user space access allowed */ -#define _PAGE_SZ1 0x080 /* SZ1-bit : Size of page (on SH-4) */ -#define _PAGE_PRESENT 0x100 /* V-bit : page is valid */ -#define _PAGE_PROTNONE 0x200 /* software: if not present */ -#define _PAGE_ACCESSED 0x400 /* software: page referenced */ -#define _PAGE_U0_SHARED 0x800 /* software: page is shared in user space */ - -#define _PAGE_FILE _PAGE_WT /* software: pagecache or swap? */ +/* + * Linux PTEL encoding. + * + * Hardware and software bit definitions for the PTEL value: + * + * - Bits 0 and 7 are reserved on SH-3 (_PAGE_WT and _PAGE_SZ1 on SH-4). + * + * - Bit 1 is the SH-bit, but is unused on SH-3 due to an MMU bug (the + * hardware PTEL value can't have the SH-bit set when MMUCR.IX is set, + * which is the default in cpu-sh3/mmu_context.h:MMU_CONTROL_INIT). + * + * In order to keep this relatively clean, do not use these for defining + * SH-3 specific flags until all of the other unused bits have been + * exhausted. + * + * - Bit 9 is reserved by everyone and used by _PAGE_PROTNONE. + * + * - Bits 10 and 11 are low bits of the PPN that are reserved on >= 4K pages. + * Bit 10 is used for _PAGE_ACCESSED, bit 11 remains unused. + * + * - Bits 31, 30, and 29 remain unused by everyone and can be used for future + * software flags, although care must be taken to update _PAGE_CLEAR_FLAGS. + */ +#define _PAGE_WT 0x001 /* WT-bit on SH-4, 0 on SH-3 */ +#define _PAGE_HW_SHARED 0x002 /* SH-bit : shared among processes */ +#define _PAGE_DIRTY 0x004 /* D-bit : page changed */ +#define _PAGE_CACHABLE 0x008 /* C-bit : cachable */ +#define _PAGE_SZ0 0x010 /* SZ0-bit : Size of page */ +#define _PAGE_RW 0x020 /* PR0-bit : write access allowed */ +#define _PAGE_USER 0x040 /* PR1-bit : user space access allowed */ +#define _PAGE_SZ1 0x080 /* SZ1-bit : Size of page (on SH-4) */ +#define _PAGE_PRESENT 0x100 /* V-bit : page is valid */ +#define _PAGE_PROTNONE 0x200 /* software: if not present */ +#define _PAGE_ACCESSED 0x400 /* software: page referenced */ +#define _PAGE_FILE _PAGE_WT /* software: pagecache or swap? */ /* software: moves to PTEA.TC (Timing Control) */ #define _PAGE_PCC_AREA5 0x00000000 /* use BSC registers for area5 */ @@ -83,23 +103,17 @@ #define _PAGE_PCC_ATR8 0x60000000 /* Attribute Memory space, 8 bit bus */ #define _PAGE_PCC_ATR16 0x60000001 /* Attribute Memory space, 6 bit bus */ - -/* Mask which drop software flags - * We also drop WT bit since it is used for _PAGE_FILE - * bit in this implementation. - */ -#define _PAGE_CLEAR_FLAGS (_PAGE_WT | _PAGE_PROTNONE | _PAGE_ACCESSED | _PAGE_U0_SHARED) - -#if defined(CONFIG_CPU_SH3) -/* - * MMU on SH-3 has bug on SH-bit: We can't use it if MMUCR.IX=1. - * Work around: Just drop SH-bit. - */ -#define _PAGE_FLAGS_HARDWARE_MASK (0x1fffffff & ~(_PAGE_CLEAR_FLAGS | _PAGE_HW_SHARED)) +/* Mask which drops unused bits from the PTEL value */ +#ifdef CONFIG_CPU_SH3 +#define _PAGE_CLEAR_FLAGS (_PAGE_PROTNONE | _PAGE_ACCESSED| \ + _PAGE_FILE | _PAGE_SZ1 | \ + _PAGE_HW_SHARED) #else -#define _PAGE_FLAGS_HARDWARE_MASK (0x1fffffff & ~(_PAGE_CLEAR_FLAGS)) +#define _PAGE_CLEAR_FLAGS (_PAGE_PROTNONE | _PAGE_ACCESSED | _PAGE_FILE) #endif +#define _PAGE_FLAGS_HARDWARE_MASK (0x1fffffff & ~(_PAGE_CLEAR_FLAGS)) + /* Hardware flags: SZ0=1 (4k-byte) */ #define _PAGE_FLAGS_HARD _PAGE_SZ0 @@ -109,15 +123,15 @@ #define _PAGE_SZHUGE (_PAGE_SZ0 | _PAGE_SZ1) #endif -#define _PAGE_SHARED _PAGE_U0_SHARED - #define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_ACCESSED | _PAGE_DIRTY) #define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) -#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_CACHABLE | _PAGE_DIRTY | _PAGE_SHARED) +#define _PAGE_CHG_MASK (PTE_MASK | _PAGE_ACCESSED | _PAGE_CACHABLE | _PAGE_DIRTY) + +#ifndef __ASSEMBLY__ #ifdef CONFIG_MMU #define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_CACHABLE |_PAGE_ACCESSED | _PAGE_FLAGS_HARD) -#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_CACHABLE |_PAGE_ACCESSED | _PAGE_SHARED | _PAGE_FLAGS_HARD) +#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | _PAGE_CACHABLE |_PAGE_ACCESSED | _PAGE_FLAGS_HARD) #define PAGE_COPY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_FLAGS_HARD) #define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_CACHABLE | _PAGE_ACCESSED | _PAGE_FLAGS_HARD) #define PAGE_KERNEL __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_CACHABLE | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_HW_SHARED | _PAGE_FLAGS_HARD) @@ -137,12 +151,13 @@ #define PAGE_KERNEL_PCC __pgprot(0) #endif +#endif /* __ASSEMBLY__ */ + /* * As i386 and MIPS, SuperH can't do page protection for execute, and * considers that the same as a read. Also, write permissions imply - * read permissions. This is the closest we can get.. + * read permissions. This is the closest we can get.. */ - #define __P000 PAGE_NONE #define __P001 PAGE_READONLY #define __P010 PAGE_COPY @@ -161,6 +176,26 @@ #define __S110 PAGE_SHARED #define __S111 PAGE_SHARED +#ifndef __ASSEMBLY__ + +/* + * Certain architectures need to do special things when PTEs + * within a page table are directly modified. Thus, the following + * hook is made available. + */ +#define set_pte(pteptr, pteval) (*(pteptr) = pteval) +#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) + +/* + * (pmds are folded into pgds so this doesn't get actually called, + * but the define is needed for a generic inline function.) + */ +#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval) + +#define pte_pfn(x) ((unsigned long)(((x).pte >> PAGE_SHIFT))) +#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) +#define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) + #define pte_none(x) (!pte_val(x)) #define pte_present(x) (pte_val(x) & (_PAGE_PRESENT | _PAGE_PROTNONE)) #define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0) @@ -171,7 +206,7 @@ #define pmd_bad(x) ((pmd_val(x) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) -#define pte_page(x) phys_to_page(pte_val(x)&PTE_PHYS_MASK) +#define pte_page(x) phys_to_page(pte_val(x)&PTE_PHYS_MASK) /* * The following only work if pte_present() is true. @@ -225,7 +260,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { set_pte(&pte, __pte((pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot))); return pte; } -#define pmd_page_kernel(pmd) \ +#define pmd_page_vaddr(pmd) \ ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) #define pmd_page(pmd) \ @@ -242,12 +277,17 @@ #define pte_index(address) \ ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir, address) \ - ((pte_t *) pmd_page_kernel(*(dir)) + pte_index(address)) + ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address)) #define pte_offset_map(dir, address) pte_offset_kernel(dir, address) #define pte_offset_map_nested(dir, address) pte_offset_kernel(dir, address) #define pte_unmap(pte) do { } while (0) #define pte_unmap_nested(pte) do { } while (0) +#define pte_ERROR(e) \ + printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e)) +#define pgd_ERROR(e) \ + printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e)) + struct vm_area_struct; extern void update_mmu_cache(struct vm_area_struct * vma, unsigned long address, pte_t pte); @@ -272,8 +312,6 @@ typedef pte_t *pte_addr_t; -#endif /* !__ASSEMBLY__ */ - #define kern_addr_valid(addr) (1) #define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ @@ -301,5 +339,5 @@ #include <asm-generic/pgtable.h> +#endif /* !__ASSEMBLY__ */ #endif /* __ASM_SH_PAGE_H */ -
diff --git a/include/asm-sh/pm.h b/include/asm-sh/pm.h new file mode 100644 index 0000000..56fdbd6 --- /dev/null +++ b/include/asm-sh/pm.h
@@ -0,0 +1,17 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright 2006 (c) Andriy Skulysh <askulysh@gmail.com> + * + */ +#ifndef __ASM_SH_PM_H +#define __ASM_SH_PM_H + +extern u8 wakeup_start; +extern u8 wakeup_end; + +void pm_enter(void); + +#endif
diff --git a/include/asm-sh/processor.h b/include/asm-sh/processor.h index eeb0f48..4747738 100644 --- a/include/asm-sh/processor.h +++ b/include/asm-sh/processor.h
@@ -14,6 +14,7 @@ #include <asm/types.h> #include <asm/cache.h> #include <asm/ptrace.h> +#include <asm/cpu-features.h> /* * Default implementation of macro that returns current @@ -38,27 +39,30 @@ CPU_SH7604, /* SH-3 types */ - CPU_SH7705, CPU_SH7707, CPU_SH7708, CPU_SH7708S, CPU_SH7708R, - CPU_SH7709, CPU_SH7709A, CPU_SH7729, CPU_SH7300, + CPU_SH7705, CPU_SH7706, CPU_SH7707, + CPU_SH7708, CPU_SH7708S, CPU_SH7708R, + CPU_SH7709, CPU_SH7709A, CPU_SH7710, + CPU_SH7729, CPU_SH7300, /* SH-4 types */ CPU_SH7750, CPU_SH7750S, CPU_SH7750R, CPU_SH7751, CPU_SH7751R, CPU_SH7760, CPU_ST40RA, CPU_ST40GX1, CPU_SH4_202, CPU_SH4_501, - CPU_SH73180, CPU_SH7770, CPU_SH7780, CPU_SH7781, + CPU_SH73180, CPU_SH7343, CPU_SH7770, CPU_SH7780, CPU_SH7781, /* Unknown subtype */ CPU_SH_NONE }; struct sh_cpuinfo { - enum cpu_type type; + unsigned int type; unsigned long loops_per_jiffy; - struct cache_info icache; - struct cache_info dcache; + struct cache_info icache; /* Primary I-cache */ + struct cache_info dcache; /* Primary D-cache */ + struct cache_info scache; /* Secondary cache */ unsigned long flags; -}; +} __attribute__ ((aligned(SMP_CACHE_BYTES))); extern struct sh_cpuinfo boot_cpu_data; @@ -125,17 +129,6 @@ struct sh_fpu_soft_struct soft; }; -/* - * Processor flags - */ - -#define CPU_HAS_FPU 0x0001 /* Hardware FPU support */ -#define CPU_HAS_P2_FLUSH_BUG 0x0002 /* Need to flush the cache in P2 area */ -#define CPU_HAS_MMU_PAGE_ASSOC 0x0004 /* SH3: TLB way selection bit support */ -#define CPU_HAS_DSP 0x0008 /* SH-DSP: DSP support */ -#define CPU_HAS_PERF_COUNTER 0x0010 /* Hardware performance counters */ -#define CPU_HAS_PTEA 0x0020 /* PTEA register */ - struct thread_struct { unsigned long sp; unsigned long pc; @@ -149,6 +142,10 @@ union sh_fpu_union fpu; }; +typedef struct { + unsigned long seg; +} mm_segment_t; + /* Count of active tasks with UBC settings */ extern int ubc_usercnt; @@ -266,5 +263,24 @@ #define cpu_sleep() __asm__ __volatile__ ("sleep" : : : "memory") #define cpu_relax() barrier() +#if defined(CONFIG_CPU_SH2A) || defined(CONFIG_CPU_SH3) || \ + defined(CONFIG_CPU_SH4) +#define PREFETCH_STRIDE L1_CACHE_BYTES +#define ARCH_HAS_PREFETCH +#define ARCH_HAS_PREFETCHW +static inline void prefetch(void *x) +{ + __asm__ __volatile__ ("pref @%0\n\t" : : "r" (x) : "memory"); +} + +#define prefetchw(x) prefetch(x) +#endif + +#ifdef CONFIG_VSYSCALL +extern int vsyscall_init(void); +#else +#define vsyscall_init() do { } while (0) +#endif + #endif /* __KERNEL__ */ #endif /* __ASM_SH_PROCESSOR_H */
diff --git a/include/asm-sh/r7780rp/ide.h b/include/asm-sh/r7780rp/ide.h new file mode 100644 index 0000000..a1ed78e --- /dev/null +++ b/include/asm-sh/r7780rp/ide.h
@@ -0,0 +1,8 @@ +#ifndef __ASM_SH_R7780RP_IDE_H +#define __ASM_SH_R7780RP_IDE_H + +/* Nothing to see here.. */ +#include <asm/mach/r7780rp.h> + +#endif /* __ASM_SH_R7780RP_IDE_H */ +
diff --git a/include/asm-sh/r7780rp/r7780rp.h b/include/asm-sh/r7780rp/r7780rp.h new file mode 100644 index 0000000..f95d9db --- /dev/null +++ b/include/asm-sh/r7780rp/r7780rp.h
@@ -0,0 +1,177 @@ +#ifndef __ASM_SH_RENESAS_R7780RP_H +#define __ASM_SH_RENESAS_R7780RP_H + +/* + * linux/include/asm-sh/r7780rp.h + * + * Copyright (C) 2000 Atom Create Engineering Co., Ltd. + * + * Renesas Solutions Highlander R7780RP support + */ + +/* Box specific addresses. */ +#if defined(CONFIG_SH_R7780MP) +#define PA_BCR 0xa4000000 /* FPGA */ +#define PA_IRLMSK (PA_BCR+0x0000) /* Interrupt Mask control */ +#define PA_IRLMON (PA_BCR+0x0002) /* Interrupt Status control */ +#define PA_IRLPRI1 (PA_BCR+0x0004) /* Interrupt Priorty 1 */ +#define PA_IRLPRI2 (PA_BCR+0x0006) /* Interrupt Priorty 2 */ +#define PA_IRLPRI3 (PA_BCR+0x0008) /* Interrupt Priorty 3 */ +#define PA_IRLPRI4 (PA_BCR+0x000a) /* Interrupt Priorty 4 */ +#define PA_RSTCTL (PA_BCR+0x000c) /* Reset Control */ +#define PA_PCIBD (PA_BCR+0x000e) /* PCI Board detect control */ +#define PA_PCICD (PA_BCR+0x0010) /* PCI Conector detect control */ +#define PA_EXTGIO (PA_BCR+0x0016) /* Extension GPIO Control */ +#define PA_IVDRMON (PA_BCR+0x0018) /* iVDR Moniter control */ +#define PA_IVDRCTL (PA_BCR+0x001a) /* iVDR control */ +#define PA_OBLED (PA_BCR+0x001c) /* On Board LED control */ +#define PA_OBSW (PA_BCR+0x001e) /* On Board Switch control */ +#define PA_AUDIOSEL (PA_BCR+0x0020) /* Sound Interface Select control */ +#define PA_EXTPLR (PA_BCR+0x001e) /* Extention Pin Polarity control */ +#define PA_TPCTL (PA_BCR+0x0100) /* Touch Panel Access control */ +#define PA_TPDCKCTL (PA_BCR+0x0102) /* Touch Panel Access data control */ +#define PA_TPCTLCLR (PA_BCR+0x0104) /* Touch Panel Access control */ +#define PA_TPXPOS (PA_BCR+0x0106) /* Touch Panel X position control */ +#define PA_TPYPOS (PA_BCR+0x0108) /* Touch Panel Y position control */ +#define PA_DBSW (PA_BCR+0x0200) /* Debug Board Switch control */ +#define PA_CFCTL (PA_BCR+0x0300) /* CF Timing control */ +#define PA_CFPOW (PA_BCR+0x0302) /* CF Power control */ +#define PA_CFCDINTCLR (PA_BCR+0x0304) /* CF Insert Interrupt clear */ +#define PA_SCSMR0 (PA_BCR+0x0400) /* SCIF0 Serial mode control */ +#define PA_SCBRR0 (PA_BCR+0x0404) /* SCIF0 Bit rate control */ +#define PA_SCSCR0 (PA_BCR+0x0408) /* SCIF0 Serial control */ +#define PA_SCFTDR0 (PA_BCR+0x040c) /* SCIF0 Send FIFO control */ +#define PA_SCFSR0 (PA_BCR+0x0410) /* SCIF0 Serial status control */ +#define PA_SCFRDR0 (PA_BCR+0x0414) /* SCIF0 Receive FIFO control */ +#define PA_SCFCR0 (PA_BCR+0x0418) /* SCIF0 FIFO control */ +#define PA_SCTFDR0 (PA_BCR+0x041c) /* SCIF0 Send FIFO data control */ +#define PA_SCRFDR0 (PA_BCR+0x0420) /* SCIF0 Receive FIFO data control */ +#define PA_SCSPTR0 (PA_BCR+0x0424) /* SCIF0 Serial Port control */ +#define PA_SCLSR0 (PA_BCR+0x0428) /* SCIF0 Line Status control */ +#define PA_SCRER0 (PA_BCR+0x042c) /* SCIF0 Serial Error control */ +#define PA_SCSMR1 (PA_BCR+0x0500) /* SCIF1 Serial mode control */ +#define PA_SCBRR1 (PA_BCR+0x0504) /* SCIF1 Bit rate control */ +#define PA_SCSCR1 (PA_BCR+0x0508) /* SCIF1 Serial control */ +#define PA_SCFTDR1 (PA_BCR+0x050c) /* SCIF1 Send FIFO control */ +#define PA_SCFSR1 (PA_BCR+0x0510) /* SCIF1 Serial status control */ +#define PA_SCFRDR1 (PA_BCR+0x0514) /* SCIF1 Receive FIFO control */ +#define PA_SCFCR1 (PA_BCR+0x0518) /* SCIF1 FIFO control */ +#define PA_SCTFDR1 (PA_BCR+0x051c) /* SCIF1 Send FIFO data control */ +#define PA_SCRFDR1 (PA_BCR+0x0520) /* SCIF1 Receive FIFO data control */ +#define PA_SCSPTR1 (PA_BCR+0x0524) /* SCIF1 Serial Port control */ +#define PA_SCLSR1 (PA_BCR+0x0528) /* SCIF1 Line Status control */ +#define PA_SCRER1 (PA_BCR+0x052c) /* SCIF1 Serial Error control */ +#define PA_ICCR (PA_BCR+0x0600) /* Serial control */ +#define PA_SAR (PA_BCR+0x0602) /* Serial Slave control */ +#define PA_MDR (PA_BCR+0x0604) /* Serial Mode control */ +#define PA_ADR1 (PA_BCR+0x0606) /* Serial Address1 control */ +#define PA_DAR1 (PA_BCR+0x0646) /* Serial Data1 control */ +#define PA_VERREG (PA_BCR+0x0700) /* FPGA Version Register */ +#define PA_POFF (PA_BCR+0x0800) /* System Power Off control */ +#define PA_PMR (PA_BCR+0x0900) /* */ + +#define PA_AX88796L 0xa4100400 /* AX88796L Area */ +#define PA_SC1602BSLB 0xa6000000 /* SC1602BSLB Area */ +#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */ +#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */ +#define PA_IDE_OFFSET 0x1f0 /* CF IDE Offset */ +#define AX88796L_IO_BASE 0x1000 /* AX88796L IO Base Address */ + +#define IRLCNTR1 (PA_BCR + 0) /* Interrupt Control Register1 */ + +#define IRQ_PCISLOT1 65 /* PCI Slot #1 IRQ */ +#define IRQ_PCISLOT2 66 /* PCI Slot #2 IRQ */ +#define IRQ_PCISLOT3 67 /* PCI Slot #3 IRQ */ +#define IRQ_PCISLOT4 68 /* PCI Slot #4 IRQ */ +#define IRQ_CFCARD 1 /* CF Card IRQ */ +// #define IRQ_CFINST 0 /* CF Card Insert IRQ */ +#define IRQ_TP 2 /* Touch Panel IRQ */ +#define IRQ_SCI1 3 /* SCI1 IRQ */ +#define IRQ_SCI0 4 /* SCI0 IRQ */ +#define IRQ_2SERIAL 5 /* Serial IRQ */ +#define IRQ_RTC 6 /* RTC A / B IRQ */ +#define IRQ_EXTENTION6 7 /* EXT6n IRQ */ +#define IRQ_EXTENTION5 8 /* EXT5n IRQ */ +#define IRQ_EXTENTION4 9 /* EXT4n IRQ */ +#define IRQ_EXTENTION2 10 /* EXT2n IRQ */ +#define IRQ_EXTENTION1 11 /* EXT1n IRQ */ +#define IRQ_ONETH 13 /* On board Ethernet IRQ */ +#define IRQ_PSW 14 /* Push Switch IRQ */ + +#else /* R7780RP */ + +#define PA_BCR 0xa5000000 /* FPGA */ +#define PA_IRLMSK (PA_BCR+0x0000) /* Interrupt Mask control */ +#define PA_IRLMON (PA_BCR+0x0002) /* Interrupt Status control */ +#define PA_SDPOW (PA_BCR+0x0004) /* SD Power control */ +#define PA_RSTCTL (PA_BCR+0x0006) /* Device Reset control */ +#define PA_PCIBD (PA_BCR+0x0008) /* PCI Board detect control */ +#define PA_PCICD (PA_BCR+0x000a) /* PCI Conector detect control */ +#define PA_ZIGIO1 (PA_BCR+0x000c) /* Zigbee IO control 1 */ +#define PA_ZIGIO2 (PA_BCR+0x000e) /* Zigbee IO control 2 */ +#define PA_ZIGIO3 (PA_BCR+0x0010) /* Zigbee IO control 3 */ +#define PA_ZIGIO4 (PA_BCR+0x0012) /* Zigbee IO control 4 */ +#define PA_IVDRMON (PA_BCR+0x0014) /* iVDR Moniter control */ +#define PA_IVDRCTL (PA_BCR+0x0016) /* iVDR control */ +#define PA_OBLED (PA_BCR+0x0018) /* On Board LED control */ +#define PA_OBSW (PA_BCR+0x001a) /* On Board Switch control */ +#define PA_AUDIOSEL (PA_BCR+0x001c) /* Sound Interface Select control */ +#define PA_EXTPLR (PA_BCR+0x001e) /* Extention Pin Polarity control */ +#define PA_TPCTL (PA_BCR+0x0100) /* Touch Panel Access control */ +#define PA_TPDCKCTL (PA_BCR+0x0102) /* Touch Panel Access data control */ +#define PA_TPCTLCLR (PA_BCR+0x0104) /* Touch Panel Access control */ +#define PA_TPXPOS (PA_BCR+0x0106) /* Touch Panel X position control */ +#define PA_TPYPOS (PA_BCR+0x0108) /* Touch Panel Y position control */ +#define PA_DBDET (PA_BCR+0x0200) /* Debug Board detect control */ +#define PA_DBDISPCTL (PA_BCR+0x0202) /* Debug Board Dot timing control */ +#define PA_DBSW (PA_BCR+0x0204) /* Debug Board Switch control */ +#define PA_CFCTL (PA_BCR+0x0300) /* CF Timing control */ +#define PA_CFPOW (PA_BCR+0x0302) /* CF Power control */ +#define PA_CFCDINTCLR (PA_BCR+0x0304) /* CF Insert Interrupt clear */ +#define PA_SCSMR (PA_BCR+0x0400) /* SCIF Serial mode control */ +#define PA_SCBRR (PA_BCR+0x0402) /* SCIF Bit rate control */ +#define PA_SCSCR (PA_BCR+0x0404) /* SCIF Serial control */ +#define PA_SCFDTR (PA_BCR+0x0406) /* SCIF Send FIFO control */ +#define PA_SCFSR (PA_BCR+0x0408) /* SCIF Serial status control */ +#define PA_SCFRDR (PA_BCR+0x040a) /* SCIF Receive FIFO control */ +#define PA_SCFCR (PA_BCR+0x040c) /* SCIF FIFO control */ +#define PA_SCFDR (PA_BCR+0x040e) /* SCIF FIFO data control */ +#define PA_SCLSR (PA_BCR+0x0412) /* SCIF Line Status control */ +#define PA_ICCR (PA_BCR+0x0500) /* Serial control */ +#define PA_SAR (PA_BCR+0x0502) /* Serial Slave control */ +#define PA_MDR (PA_BCR+0x0504) /* Serial Mode control */ +#define PA_ADR1 (PA_BCR+0x0506) /* Serial Address1 control */ +#define PA_DAR1 (PA_BCR+0x0546) /* Serial Data1 control */ +#define PA_VERREG (PA_BCR+0x0600) /* FPGA Version Register */ + +#define PA_AX88796L 0xa5800400 /* AX88796L Area */ +#define PA_SC1602BSLB 0xa6000000 /* SC1602BSLB Area */ +#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */ +#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */ +#define PA_IDE_OFFSET 0x1f0 /* CF IDE Offset */ +#define AX88796L_IO_BASE 0x1000 /* AX88796L IO Base Address */ + +#define IRLCNTR1 (PA_BCR + 0) /* Interrupt Control Register1 */ + +#define IRQ_PCISLOT1 0 /* PCI Slot #1 IRQ */ +#define IRQ_PCISLOT2 1 /* PCI Slot #2 IRQ */ +#define IRQ_PCISLOT3 2 /* PCI Slot #3 IRQ */ +#define IRQ_PCISLOT4 3 /* PCI Slot #4 IRQ */ +#define IRQ_CFCARD 4 /* CF Card IRQ */ +#define IRQ_CFINST 5 /* CF Card Insert IRQ */ +#define IRQ_M66596 6 /* M66596 IRQ */ +#define IRQ_SDCARD 7 /* SD Card IRQ */ +#define IRQ_TUCHPANEL 8 /* Touch Panel IRQ */ +#define IRQ_SCI 9 /* SCI IRQ */ +#define IRQ_2SERIAL 10 /* Serial IRQ */ +#define IRQ_EXTENTION 11 /* EXTn IRQ */ +#define IRQ_ONETH 12 /* On board Ethernet IRQ */ +#define IRQ_PSW 13 /* Push Switch IRQ */ +#define IRQ_ZIGBEE 14 /* Ziggbee IO IRQ */ + +#endif /* CONFIG_SH_R7780MP */ + +#define __IO_PREFIX r7780rp +#include <asm/io_generic.h> + +#endif /* __ASM_SH_RENESAS_R7780RP */
diff --git a/include/asm-sh/rtc.h b/include/asm-sh/rtc.h index cea9cdf..91aacc9 100644 --- a/include/asm-sh/rtc.h +++ b/include/asm-sh/rtc.h
@@ -1,29 +1,8 @@ #ifndef _ASM_RTC_H #define _ASM_RTC_H -#ifdef __KERNEL__ -#include <asm/machvec.h> -#include <asm/cpu/rtc.h> - -extern void sh_rtc_gettimeofday(struct timespec *ts); -extern int sh_rtc_settimeofday(const time_t secs); extern void (*board_time_init)(void); -extern void (*rtc_get_time)(struct timespec *); -extern int (*rtc_set_time)(const time_t); +extern void (*rtc_sh_get_time)(struct timespec *); +extern int (*rtc_sh_set_time)(const time_t); -/* RCR1 Bits */ -#define RCR1_CF 0x80 /* Carry Flag */ -#define RCR1_CIE 0x10 /* Carry Interrupt Enable */ -#define RCR1_AIE 0x08 /* Alarm Interrupt Enable */ -#define RCR1_AF 0x01 /* Alarm Flag */ - -/* RCR2 Bits */ -#define RCR2_PEF 0x80 /* PEriodic interrupt Flag */ -#define RCR2_PESMASK 0x70 /* Periodic interrupt Set */ -#define RCR2_RTCEN 0x08 /* ENable RTC */ -#define RCR2_ADJ 0x04 /* ADJustment (30-second) */ -#define RCR2_RESET 0x02 /* Reset bit */ -#define RCR2_START 0x01 /* Start bit */ - -#endif /* __KERNEL__ */ #endif /* _ASM_RTC_H */
diff --git a/include/asm-sh/rts7751r2d/rts7751r2d.h b/include/asm-sh/rts7751r2d/rts7751r2d.h index 4e09ba5..b112ae2 100644 --- a/include/asm-sh/rts7751r2d/rts7751r2d.h +++ b/include/asm-sh/rts7751r2d/rts7751r2d.h
@@ -41,8 +41,6 @@ #define PA_AX88796L 0xaa000400 /* AX88796L Area */ #define PA_VOYAGER 0xab000000 /* VOYAGER GX Area */ -#define PA_AREA5_IO 0xb4000000 /* Area 5 IO Memory */ -#define PA_AREA6_IO 0xb8000000 /* Area 6 IO Memory */ #define PA_IDE_OFFSET 0x1f0 /* CF IDE Offset */ #define AX88796L_IO_BASE 0x1000 /* AX88796L IO Base Address */
diff --git a/include/asm-sh/scatterlist.h b/include/asm-sh/scatterlist.h index 7b91df1..d19e7cd 100644 --- a/include/asm-sh/scatterlist.h +++ b/include/asm-sh/scatterlist.h
@@ -10,4 +10,13 @@ #define ISA_DMA_THRESHOLD (0x1fffffff) +/* These macros should be used after a pci_map_sg call has been done + * to get bus addresses of each of the SG entries and their lengths. + * You should only work with the number of sg entries pci_map_sg + * returns, or alternatively stop on the first sg_dma_len(sg) which + * is 0. + */ +#define sg_dma_address(sg) ((sg)->dma_address) +#define sg_dma_len(sg) ((sg)->length) + #endif /* !(__ASM_SH_SCATTERLIST_H) */
diff --git a/include/asm-sh/sci.h b/include/asm-sh/sci.h new file mode 100644 index 0000000..52e7366 --- /dev/null +++ b/include/asm-sh/sci.h
@@ -0,0 +1,34 @@ +#ifndef __ASM_SH_SCI_H +#define __ASM_SH_SCI_H + +#include <linux/serial_core.h> + +/* + * Generic header for SuperH SCI(F) + * + * Do not place SH-specific parts in here, sh64 and h8300 depend on this too. + */ + +/* Offsets into the sci_port->irqs array */ +enum { + SCIx_ERI_IRQ, + SCIx_RXI_IRQ, + SCIx_TXI_IRQ, + SCIx_BRI_IRQ, + SCIx_NR_IRQS, +}; + +/* + * Platform device specific platform_data struct + */ +struct plat_sci_port { + void __iomem *membase; /* io cookie */ + unsigned long mapbase; /* resource base */ + unsigned int irqs[SCIx_NR_IRQS]; /* ERI, RXI, TXI, BRI */ + unsigned int type; /* SCI / SCIF / IRDA */ + upf_t flags; /* UPF_* flags */ +}; + +int early_sci_setup(struct uart_port *port); + +#endif /* __ASM_SH_SCI_H */
diff --git a/include/asm-sh/se/se.h b/include/asm-sh/se.h similarity index 97% rename from include/asm-sh/se/se.h rename to include/asm-sh/se.h index 791c5da..a183215 100644 --- a/include/asm-sh/se/se.h +++ b/include/asm-sh/se.h
@@ -74,4 +74,7 @@ #define IRQ_STNIC 10 #endif +#define __IO_PREFIX se +#include <asm/io_generic.h> + #endif /* __ASM_SH_HITACHI_SE_H */
diff --git a/include/asm-sh/se/io.h b/include/asm-sh/se/io.h deleted file mode 100644 index 9eeb86c..0000000 --- a/include/asm-sh/se/io.h +++ /dev/null
@@ -1,35 +0,0 @@ -/* - * include/asm-sh/io_se.h - * - * Copyright 2000 Stuart Menefy (stuart.menefy@st.com) - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * IO functions for an Hitachi SolutionEngine - */ - -#ifndef _ASM_SH_IO_SE_H -#define _ASM_SH_IO_SE_H - -extern unsigned char se_inb(unsigned long port); -extern unsigned short se_inw(unsigned long port); -extern unsigned int se_inl(unsigned long port); - -extern void se_outb(unsigned char value, unsigned long port); -extern void se_outw(unsigned short value, unsigned long port); -extern void se_outl(unsigned int value, unsigned long port); - -extern unsigned char se_inb_p(unsigned long port); -extern void se_outb_p(unsigned char value, unsigned long port); - -extern void se_insb(unsigned long port, void *addr, unsigned long count); -extern void se_insw(unsigned long port, void *addr, unsigned long count); -extern void se_insl(unsigned long port, void *addr, unsigned long count); -extern void se_outsb(unsigned long port, const void *addr, unsigned long count); -extern void se_outsw(unsigned long port, const void *addr, unsigned long count); -extern void se_outsl(unsigned long port, const void *addr, unsigned long count); - -extern unsigned long se_isa_port2addr(unsigned long offset); - -#endif /* _ASM_SH_IO_SE_H */
diff --git a/include/asm-sh/se7300/se7300.h b/include/asm-sh/se7300.h similarity index 97% rename from include/asm-sh/se7300/se7300.h rename to include/asm-sh/se7300.h index 3ec1ded..4e24edc 100644 --- a/include/asm-sh/se7300/se7300.h +++ b/include/asm-sh/se7300.h
@@ -58,4 +58,7 @@ #define PA_LCD1 0xb8000000 #define PA_LCD2 0xb8800000 +#define __IO_PREFIX sh7300se +#include <asm/io_generic.h> + #endif /* __ASM_SH_HITACHI_SE7300_H */
diff --git a/include/asm-sh/se7300/io.h b/include/asm-sh/se7300/io.h deleted file mode 100644 index c6af855..0000000 --- a/include/asm-sh/se7300/io.h +++ /dev/null
@@ -1,29 +0,0 @@ -/* - * include/asm-sh/se7300/io.h - * - * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp> - * IO functions for SH-Mobile(SH7300) SolutionEngine - */ - -#ifndef _ASM_SH_IO_7300SE_H -#define _ASM_SH_IO_7300SE_H - -extern unsigned char sh7300se_inb(unsigned long port); -extern unsigned short sh7300se_inw(unsigned long port); -extern unsigned int sh7300se_inl(unsigned long port); - -extern void sh7300se_outb(unsigned char value, unsigned long port); -extern void sh7300se_outw(unsigned short value, unsigned long port); -extern void sh7300se_outl(unsigned int value, unsigned long port); - -extern unsigned char sh7300se_inb_p(unsigned long port); -extern void sh7300se_outb_p(unsigned char value, unsigned long port); - -extern void sh7300se_insb(unsigned long port, void *addr, unsigned long count); -extern void sh7300se_insw(unsigned long port, void *addr, unsigned long count); -extern void sh7300se_insl(unsigned long port, void *addr, unsigned long count); -extern void sh7300se_outsb(unsigned long port, const void *addr, unsigned long count); -extern void sh7300se_outsw(unsigned long port, const void *addr, unsigned long count); -extern void sh7300se_outsl(unsigned long port, const void *addr, unsigned long count); - -#endif /* _ASM_SH_IO_7300SE_H */
diff --git a/include/asm-sh/se73180/se73180.h b/include/asm-sh/se73180.h similarity index 97% rename from include/asm-sh/se73180/se73180.h rename to include/asm-sh/se73180.h index f5b93e3..3a4acb3 100644 --- a/include/asm-sh/se73180/se73180.h +++ b/include/asm-sh/se73180.h
@@ -59,4 +59,7 @@ #define PA_LCD1 0xb8000000 #define PA_LCD2 0xb8800000 +#define __IO_PREFIX sh73180se +#include <asm/io_generic.h> + #endif /* __ASM_SH_HITACHI_SE73180_H */
diff --git a/include/asm-sh/se73180/io.h b/include/asm-sh/se73180/io.h deleted file mode 100644 index c9cb1b9..0000000 --- a/include/asm-sh/se73180/io.h +++ /dev/null
@@ -1,32 +0,0 @@ -/* - * include/asm-sh/se73180/io.h - * - * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp> - * Based on include/asm-sh/se7300/io.h - * - * IO functions for SH-Mobile3(SH73180) SolutionEngine - * - */ - -#ifndef _ASM_SH_IO_73180SE_H -#define _ASM_SH_IO_73180SE_H - -extern unsigned char sh73180se_inb(unsigned long port); -extern unsigned short sh73180se_inw(unsigned long port); -extern unsigned int sh73180se_inl(unsigned long port); - -extern void sh73180se_outb(unsigned char value, unsigned long port); -extern void sh73180se_outw(unsigned short value, unsigned long port); -extern void sh73180se_outl(unsigned int value, unsigned long port); - -extern unsigned char sh73180se_inb_p(unsigned long port); -extern void sh73180se_outb_p(unsigned char value, unsigned long port); - -extern void sh73180se_insb(unsigned long port, void *addr, unsigned long count); -extern void sh73180se_insw(unsigned long port, void *addr, unsigned long count); -extern void sh73180se_insl(unsigned long port, void *addr, unsigned long count); -extern void sh73180se_outsb(unsigned long port, const void *addr, unsigned long count); -extern void sh73180se_outsw(unsigned long port, const void *addr, unsigned long count); -extern void sh73180se_outsl(unsigned long port, const void *addr, unsigned long count); - -#endif /* _ASM_SH_IO_73180SE_H */
diff --git a/include/asm-sh/se73180/se73180.h b/include/asm-sh/se7343.h similarity index 67% copy from include/asm-sh/se73180/se73180.h copy to include/asm-sh/se7343.h index f5b93e3..e7914a5 100644 --- a/include/asm-sh/se73180/se73180.h +++ b/include/asm-sh/se7343.h
@@ -1,12 +1,12 @@ -#ifndef __ASM_SH_HITACHI_SE73180_H -#define __ASM_SH_HITACHI_SE73180_H +#ifndef __ASM_SH_HITACHI_SE7343_H +#define __ASM_SH_HITACHI_SE7343_H /* - * include/asm-sh/se/se73180.h + * include/asm-sh/se/se7343.h * * Copyright (C) 2003 Takashi Kusuda <kusuda-takashi@hitachi-ul.co.jp> * - * SH-Mobile SolutionEngine 73180 support + * SH-Mobile SolutionEngine 7343 support */ /* Box specific addresses. */ @@ -49,9 +49,9 @@ #define PA_LED 0xb0C00000 /* LED */ #define LED_SHIFT 0 #define PA_DIPSW 0xb0900000 /* Dip switch 31 */ -#define PA_EPLD_MODESET 0xb0a00000 /* FPGA Mode set register */ -#define PA_EPLD_ST1 0xb0a80000 /* FPGA Interrupt status register1 */ -#define PA_EPLD_ST2 0xb0ac0000 /* FPGA Interrupt status register2 */ +#define PA_CPLD_MODESET 0xb1400004 /* CPLD Mode set register */ +#define PA_CPLD_ST 0xb1400008 /* CPLD Interrupt status register */ +#define PA_CPLD_IMSK 0xb140000a /* CPLD Interrupt mask register */ /* Area 5 */ #define PA_EXT5 0x14000000 #define PA_EXT5_SIZE 0x04000000 @@ -59,4 +59,24 @@ #define PA_LCD1 0xb8000000 #define PA_LCD2 0xb8800000 -#endif /* __ASM_SH_HITACHI_SE73180_H */ +#define __IO_PREFIX sh7343se +#include <asm/io_generic.h> + +/* External Multiplexed interrupts */ +#define PC_IRQ0 OFFCHIP_IRQ_BASE +#define PC_IRQ1 (PC_IRQ0 + 1) +#define PC_IRQ2 (PC_IRQ1 + 1) +#define PC_IRQ3 (PC_IRQ2 + 1) + +#define EXT_IRQ0 (PC_IRQ3 + 1) +#define EXT_IRQ1 (EXT_IRQ0 + 1) +#define EXT_IRQ2 (EXT_IRQ1 + 1) +#define EXT_IRQ3 (EXT_IRQ2 + 1) + +#define USB_IRQ0 (EXT_IRQ3 + 1) +#define USB_IRQ1 (USB_IRQ0 + 1) + +#define UART_IRQ0 (USB_IRQ1 + 1) +#define UART_IRQ1 (UART_IRQ0 + 1) + +#endif /* __ASM_SH_HITACHI_SE7343_H */
diff --git a/include/asm-sh/se7751/se7751.h b/include/asm-sh/se7751.h similarity index 97% rename from include/asm-sh/se7751/se7751.h rename to include/asm-sh/se7751.h index 738e22b..88cd379 100644 --- a/include/asm-sh/se7751/se7751.h +++ b/include/asm-sh/se7751.h
@@ -65,4 +65,7 @@ #define IRQ_79C973 13 +#define __IO_PREFIX sh7751se +#include <asm/io_generic.h> + #endif /* __ASM_SH_HITACHI_7751SE_H */
diff --git a/include/asm-sh/se7751/io.h b/include/asm-sh/se7751/io.h deleted file mode 100644 index 78d8f57..0000000 --- a/include/asm-sh/se7751/io.h +++ /dev/null
@@ -1,42 +0,0 @@ -/* - * include/asm-sh/io_7751se.h - * - * Modified version of io_se.h for the 7751se-specific functions. - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * IO functions for an Hitachi SolutionEngine - */ - -#ifndef _ASM_SH_IO_7751SE_H -#define _ASM_SH_IO_7751SE_H - -extern unsigned char sh7751se_inb(unsigned long port); -extern unsigned short sh7751se_inw(unsigned long port); -extern unsigned int sh7751se_inl(unsigned long port); - -extern void sh7751se_outb(unsigned char value, unsigned long port); -extern void sh7751se_outw(unsigned short value, unsigned long port); -extern void sh7751se_outl(unsigned int value, unsigned long port); - -extern unsigned char sh7751se_inb_p(unsigned long port); -extern void sh7751se_outb_p(unsigned char value, unsigned long port); - -extern void sh7751se_insb(unsigned long port, void *addr, unsigned long count); -extern void sh7751se_insw(unsigned long port, void *addr, unsigned long count); -extern void sh7751se_insl(unsigned long port, void *addr, unsigned long count); -extern void sh7751se_outsb(unsigned long port, const void *addr, unsigned long count); -extern void sh7751se_outsw(unsigned long port, const void *addr, unsigned long count); -extern void sh7751se_outsl(unsigned long port, const void *addr, unsigned long count); - -extern unsigned char sh7751se_readb(unsigned long addr); -extern unsigned short sh7751se_readw(unsigned long addr); -extern unsigned int sh7751se_readl(unsigned long addr); -extern void sh7751se_writeb(unsigned char b, unsigned long addr); -extern void sh7751se_writew(unsigned short b, unsigned long addr); -extern void sh7751se_writel(unsigned int b, unsigned long addr); - -extern unsigned long sh7751se_isa_port2addr(unsigned long offset); - -#endif /* _ASM_SH_IO_7751SE_H */
diff --git a/include/asm-sh/setup.h b/include/asm-sh/setup.h index d19de7c..34ca8a7 100644 --- a/include/asm-sh/setup.h +++ b/include/asm-sh/setup.h
@@ -4,5 +4,7 @@ #define COMMAND_LINE_SIZE 256 +int setup_early_printk(char *); + #endif /* _SH_SETUP_H */ #endif /* __KERNEL__ */
diff --git a/include/asm-sh/sfp-machine.h b/include/asm-sh/sfp-machine.h new file mode 100644 index 0000000..8a6399a --- /dev/null +++ b/include/asm-sh/sfp-machine.h
@@ -0,0 +1,86 @@ +/* Machine-dependent software floating-point definitions. + SuperH kernel version. + Copyright (C) 1997,1998,1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson (rth@cygnus.com), + Jakub Jelinek (jj@ultra.linux.cz), + David S. Miller (davem@redhat.com) and + Peter Maydell (pmaydell@chiark.greenend.org.uk). + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, write to the Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _SFP_MACHINE_H +#define _SFP_MACHINE_H + +#include <linux/config.h> + +#define _FP_W_TYPE_SIZE 32 +#define _FP_W_TYPE unsigned long +#define _FP_WS_TYPE signed long +#define _FP_I_TYPE long + +#define _FP_MUL_MEAT_S(R,X,Y) \ + _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_D(R,X,Y) \ + _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) +#define _FP_MUL_MEAT_Q(R,X,Y) \ + _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) + +#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y) +#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) +#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) + +#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) +#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 +#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 +#define _FP_NANSIGN_S 0 +#define _FP_NANSIGN_D 0 +#define _FP_NANSIGN_Q 0 + +#define _FP_KEEPNANFRACP 1 + +/* + * If one NaN is signaling and the other is not, + * we choose that one, otherwise we choose X. + */ +#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ + do { \ + if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ + && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ + { \ + R##_s = Y##_s; \ + _FP_FRAC_COPY_##wc(R,Y); \ + } \ + else \ + { \ + R##_s = X##_s; \ + _FP_FRAC_COPY_##wc(R,X); \ + } \ + R##_c = FP_CLS_NAN; \ + } while (0) + +//#define FP_ROUNDMODE FPSCR_RM +#define FP_DENORM_ZERO 1/*FPSCR_DN*/ + +/* Exception flags. */ +#define FP_EX_INVALID (1<<4) +#define FP_EX_DIVZERO (1<<3) +#define FP_EX_OVERFLOW (1<<2) +#define FP_EX_UNDERFLOW (1<<1) +#define FP_EX_INEXACT (1<<0) + +#endif +
diff --git a/include/asm-sh/sh03/io.h b/include/asm-sh/sh03/io.h index 25792e9..df3b187 100644 --- a/include/asm-sh/sh03/io.h +++ b/include/asm-sh/sh03/io.h
@@ -33,14 +33,6 @@ #define IRL3_IPR_POS 0 #define IRL3_PRIORITY 4 - -extern unsigned long sh03_isa_port2addr(unsigned long offset); - -extern void setup_sh03(void); -extern void init_sh03_IRQ(void); -extern void heartbeat_sh03(void); - -extern void sh03_rtc_gettimeofday(struct timeval *tv); -extern int sh03_rtc_settimeofday(const struct timeval *tv); +void heartbeat_sh03(void); #endif /* _ASM_SH_IO_SH03_H */
diff --git a/include/asm-sh/sh2000/sh2000.h b/include/asm-sh/sh2000/sh2000.h deleted file mode 100644 index 8d54732..0000000 --- a/include/asm-sh/sh2000/sh2000.h +++ /dev/null
@@ -1,8 +0,0 @@ -#ifndef __ASM_SH_SH2000_SH2000_H -#define __ASM_SH_SH2000_SH2000_H - -/* arch/sh/boards/sh2000/setup.c */ -extern int setup_sh2000(void); - -#endif /* __ASM_SH_SH2000_SH2000_H */ -
diff --git a/include/asm-sh/shmin/shmin.h b/include/asm-sh/shmin/shmin.h new file mode 100644 index 0000000..36ba138 --- /dev/null +++ b/include/asm-sh/shmin/shmin.h
@@ -0,0 +1,9 @@ +#ifndef __ASM_SH_SHMIN_H +#define __ASM_SH_SHMIN_H + +#define SHMIN_IO_BASE 0xb0000000UL + +#define SHMIN_NE_IRQ IRQ2_IRQ +#define SHMIN_NE_BASE 0x300 + +#endif
diff --git a/include/asm-sh/shmparam.h b/include/asm-sh/shmparam.h index 0a95604..ba1758d 100644 --- a/include/asm-sh/shmparam.h +++ b/include/asm-sh/shmparam.h
@@ -1,8 +1,22 @@ +/* + * include/asm-sh/shmparam.h + * + * Copyright (C) 1999 Niibe Yutaka + * Copyright (C) 2006 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ #ifndef __ASM_SH_SHMPARAM_H #define __ASM_SH_SHMPARAM_H -#ifdef __KERNEL__ -#include <asm/cpu/shmparam.h> +/* + * SH-4 and SH-3 7705 have an aliasing dcache. Bump this up to a sensible value + * for everyone, and work out the specifics from the probed cache descriptor. + */ +#define SHMLBA 0x4000 /* attach addr a multiple of this */ -#endif /* __KERNEL__ */ +#define __ARCH_FORCE_SHMLBA + #endif /* __ASM_SH_SHMPARAM_H */
diff --git a/include/asm-sh/se/smc37c93x.h b/include/asm-sh/smc37c93x.h similarity index 100% rename from include/asm-sh/se/smc37c93x.h rename to include/asm-sh/smc37c93x.h
diff --git a/include/asm-sh/smp.h b/include/asm-sh/smp.h index f57c4fe..71ecddf 100644 --- a/include/asm-sh/smp.h +++ b/include/asm-sh/smp.h
@@ -19,11 +19,6 @@ #include <asm/atomic.h> #include <asm/current.h> -extern cpumask_t cpu_online_map; -extern cpumask_t cpu_possible_map; - -#define cpu_online(cpu) cpu_isset(cpu, cpu_online_map) - #define raw_smp_processor_id() (current_thread_info()->cpu) /* I've no idea what the real meaning of this is */
diff --git a/include/asm-sh/snapgear/io.h b/include/asm-sh/snapgear.h similarity index 62% rename from include/asm-sh/snapgear/io.h rename to include/asm-sh/snapgear.h index bfa97ac..6b5e4dd 100644 --- a/include/asm-sh/snapgear/io.h +++ b/include/asm-sh/snapgear.h
@@ -40,21 +40,8 @@ #define IRL3_PRIORITY 4 #endif -extern unsigned char snapgear_inb(unsigned long port); -extern unsigned short snapgear_inw(unsigned long port); -extern unsigned int snapgear_inl(unsigned long port); - -extern void snapgear_outb(unsigned char value, unsigned long port); -extern void snapgear_outw(unsigned short value, unsigned long port); -extern void snapgear_outl(unsigned int value, unsigned long port); - -extern unsigned char snapgear_inb_p(unsigned long port); -extern void snapgear_outb_p(unsigned char value, unsigned long port); - -extern void snapgear_insl(unsigned long port, void *addr, unsigned long count); -extern void snapgear_outsl(unsigned long port, const void *addr, unsigned long count); - -extern unsigned long snapgear_isa_port2addr(unsigned long offset); +#define __IO_PREFIX snapgear +#include <asm/io_generic.h> #ifdef CONFIG_SH_SECUREEDGE5410 /* @@ -79,14 +66,14 @@ * D12 - RTS RESET */ - #define SECUREEDGE_IOPORT_ADDR ((volatile short *) 0xb0000000) - extern unsigned short secureedge5410_ioport; +#define SECUREEDGE_IOPORT_ADDR ((volatile short *) 0xb0000000) +extern unsigned short secureedge5410_ioport; - #define SECUREEDGE_WRITE_IOPORT(val, mask) (*SECUREEDGE_IOPORT_ADDR = \ - (secureedge5410_ioport = \ - ((secureedge5410_ioport & ~(mask)) | ((val) & (mask))))) - #define SECUREEDGE_READ_IOPORT() \ - ((*SECUREEDGE_IOPORT_ADDR&0x0817) | (secureedge5410_ioport&~0x0817)) +#define SECUREEDGE_WRITE_IOPORT(val, mask) (*SECUREEDGE_IOPORT_ADDR = \ + (secureedge5410_ioport = \ + ((secureedge5410_ioport & ~(mask)) | ((val) & (mask))))) +#define SECUREEDGE_READ_IOPORT() \ + ((*SECUREEDGE_IOPORT_ADDR&0x0817) | (secureedge5410_ioport&~0x0817)) #endif #endif /* _ASM_SH_IO_SNAPGEAR_H */
diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h index ad35ad4..6c1f8fd 100644 --- a/include/asm-sh/system.h +++ b/include/asm-sh/system.h
@@ -6,6 +6,7 @@ * Copyright (C) 2002 Paul Mundt */ +#include <asm/types.h> /* * switch_to() should switch tasks to task nr n, first @@ -66,13 +67,20 @@ { } -#define nop() __asm__ __volatile__ ("nop") +#ifdef CONFIG_CPU_SH4A +#define __icbi() \ +{ \ + unsigned long __addr; \ + __addr = 0xa8000000; \ + __asm__ __volatile__( \ + "icbi %0\n\t" \ + : /* no output */ \ + : "m" (__m(__addr))); \ +} +#endif - -#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) - -static __inline__ unsigned long tas(volatile int *m) -{ /* #define tas(ptr) (xchg((ptr),1)) */ +static inline unsigned long tas(volatile int *m) +{ unsigned long retval; __asm__ __volatile__ ("tas.b @%1\n\t" @@ -81,12 +89,33 @@ return retval; } -extern void __xchg_called_with_bad_pointer(void); - -#define mb() __asm__ __volatile__ ("": : :"memory") -#define rmb() mb() -#define wmb() __asm__ __volatile__ ("": : :"memory") +/* + * A brief note on ctrl_barrier(), the control register write barrier. + * + * Legacy SH cores typically require a sequence of 8 nops after + * modification of a control register in order for the changes to take + * effect. On newer cores (like the sh4a and sh5) this is accomplished + * with icbi. + * + * Also note that on sh4a in the icbi case we can forego a synco for the + * write barrier, as it's not necessary for control registers. + * + * Historically we have only done this type of barrier for the MMUCR, but + * it's also necessary for the CCR, so we make it generic here instead. + */ +#ifdef CONFIG_CPU_SH4A +#define mb() __asm__ __volatile__ ("synco": : :"memory") +#define rmb() mb() +#define wmb() __asm__ __volatile__ ("synco": : :"memory") +#define ctrl_barrier() __icbi() #define read_barrier_depends() do { } while(0) +#else +#define mb() __asm__ __volatile__ ("": : :"memory") +#define rmb() mb() +#define wmb() __asm__ __volatile__ ("": : :"memory") +#define ctrl_barrier() __asm__ __volatile__ ("nop;nop;nop;nop;nop;nop;nop;nop") +#define read_barrier_depends() do { } while(0) +#endif #ifdef CONFIG_SMP #define smp_mb() mb() @@ -103,7 +132,8 @@ #define set_mb(var, value) do { xchg(&var, value); } while (0) /* Interrupt Control */ -static __inline__ void local_irq_enable(void) +#ifdef CONFIG_CPU_HAS_SR_RB +static inline void local_irq_enable(void) { unsigned long __dummy0, __dummy1; @@ -116,8 +146,22 @@ : "1" (~0x000000f0) : "memory"); } +#else +static inline void local_irq_enable(void) +{ + unsigned long __dummy0, __dummy1; -static __inline__ void local_irq_disable(void) + __asm__ __volatile__ ( + "stc sr, %0\n\t" + "and %1, %0\n\t" + "ldc %0, sr\n\t" + : "=&r" (__dummy0), "=r" (__dummy1) + : "1" (~0x000000f0) + : "memory"); +} +#endif + +static inline void local_irq_disable(void) { unsigned long __dummy; __asm__ __volatile__("stc sr, %0\n\t" @@ -128,6 +172,31 @@ : "memory"); } +static inline void set_bl_bit(void) +{ + unsigned long __dummy0, __dummy1; + + __asm__ __volatile__ ("stc sr, %0\n\t" + "or %2, %0\n\t" + "and %3, %0\n\t" + "ldc %0, sr" + : "=&r" (__dummy0), "=r" (__dummy1) + : "r" (0x10000000), "r" (0xffffff0f) + : "memory"); +} + +static inline void clear_bl_bit(void) +{ + unsigned long __dummy0, __dummy1; + + __asm__ __volatile__ ("stc sr, %0\n\t" + "and %2, %0\n\t" + "ldc %0, sr" + : "=&r" (__dummy0), "=r" (__dummy1) + : "1" (~0x10000000) + : "memory"); +} + #define local_save_flags(x) \ __asm__("stc sr, %0; and #0xf0, %0" : "=&z" (x) :/**/: "memory" ) @@ -138,7 +207,7 @@ (flags != 0); \ }) -static __inline__ unsigned long local_irq_save(void) +static inline unsigned long local_irq_save(void) { unsigned long flags, __dummy; @@ -154,35 +223,9 @@ return flags; } -#ifdef DEBUG_CLI_STI -static __inline__ void local_irq_restore(unsigned long x) -{ - if ((x & 0x000000f0) != 0x000000f0) - local_irq_enable(); - else { - unsigned long flags; - local_save_flags(flags); - - if (flags == 0) { - extern void dump_stack(void); - printk(KERN_ERR "BUG!\n"); - dump_stack(); - local_irq_disable(); - } - } -} -#else -#define local_irq_restore(x) do { \ +#define local_irq_restore(x) do { \ if ((x & 0x000000f0) != 0x000000f0) \ - local_irq_enable(); \ -} while (0) -#endif - -#define really_restore_flags(x) do { \ - if ((x & 0x000000f0) != 0x000000f0) \ - local_irq_enable(); \ - else \ - local_irq_disable(); \ + local_irq_enable(); \ } while (0) /* @@ -210,8 +253,8 @@ #define back_to_P1() \ do { \ unsigned long __dummy; \ + ctrl_barrier(); \ __asm__ __volatile__( \ - "nop;nop;nop;nop;nop;nop;nop\n\t" \ "mov.l 1f, %0\n\t" \ "jmp @%0\n\t" \ " nop\n\t" \ @@ -224,7 +267,7 @@ /* For spinlocks etc */ #define local_irq_save(x) x = local_irq_save() -static __inline__ unsigned long xchg_u32(volatile int * m, unsigned long val) +static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val) { unsigned long flags, retval; @@ -235,7 +278,7 @@ return retval; } -static __inline__ unsigned long xchg_u8(volatile unsigned char * m, unsigned long val) +static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val) { unsigned long flags, retval; @@ -246,20 +289,70 @@ return retval; } -static __inline__ unsigned long __xchg(unsigned long x, volatile void * ptr, int size) +extern void __xchg_called_with_bad_pointer(void); + +#define __xchg(ptr, x, size) \ +({ \ + unsigned long __xchg__res; \ + volatile void *__xchg_ptr = (ptr); \ + switch (size) { \ + case 4: \ + __xchg__res = xchg_u32(__xchg_ptr, x); \ + break; \ + case 1: \ + __xchg__res = xchg_u8(__xchg_ptr, x); \ + break; \ + default: \ + __xchg_called_with_bad_pointer(); \ + __xchg__res = x; \ + break; \ + } \ + \ + __xchg__res; \ +}) + +#define xchg(ptr,x) \ + ((__typeof__(*(ptr)))__xchg((ptr),(unsigned long)(x), sizeof(*(ptr)))) + +static inline unsigned long __cmpxchg_u32(volatile int * m, unsigned long old, + unsigned long new) +{ + __u32 retval; + unsigned long flags; + + local_irq_save(flags); + retval = *m; + if (retval == old) + *m = new; + local_irq_restore(flags); /* implies memory barrier */ + return retval; +} + +/* This function doesn't exist, so you'll get a linker error + * if something tries to do an invalid cmpxchg(). */ +extern void __cmpxchg_called_with_bad_pointer(void); + +#define __HAVE_ARCH_CMPXCHG 1 + +static inline unsigned long __cmpxchg(volatile void * ptr, unsigned long old, + unsigned long new, int size) { switch (size) { case 4: - return xchg_u32(ptr, x); - break; - case 1: - return xchg_u8(ptr, x); - break; + return __cmpxchg_u32(ptr, old, new); } - __xchg_called_with_bad_pointer(); - return x; + __cmpxchg_called_with_bad_pointer(); + return old; } +#define cmpxchg(ptr,o,n) \ + ({ \ + __typeof__(*(ptr)) _o_ = (o); \ + __typeof__(*(ptr)) _n_ = (n); \ + (__typeof__(*(ptr))) __cmpxchg((ptr), (unsigned long)_o_, \ + (unsigned long)_n_, sizeof(*(ptr))); \ + }) + /* XXX * disable hlt during certain critical i/o operations */
diff --git a/include/asm-sh/systemh/io.h b/include/asm-sh/systemh/io.h deleted file mode 100644 index 327849b..0000000 --- a/include/asm-sh/systemh/io.h +++ /dev/null
@@ -1,43 +0,0 @@ -/* - * include/asm-sh/systemh/io.h - * - * Stupid I/O definitions for SystemH, cloned from SE7751. - * - * Copyright (C) 2003 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#ifndef __ASM_SH_SYSTEMH_IO_H -#define __ASM_SH_SYSTEMH_IO_H - -extern unsigned char sh7751systemh_inb(unsigned long port); -extern unsigned short sh7751systemh_inw(unsigned long port); -extern unsigned int sh7751systemh_inl(unsigned long port); - -extern void sh7751systemh_outb(unsigned char value, unsigned long port); -extern void sh7751systemh_outw(unsigned short value, unsigned long port); -extern void sh7751systemh_outl(unsigned int value, unsigned long port); - -extern unsigned char sh7751systemh_inb_p(unsigned long port); -extern void sh7751systemh_outb_p(unsigned char value, unsigned long port); - -extern void sh7751systemh_insb(unsigned long port, void *addr, unsigned long count); -extern void sh7751systemh_insw(unsigned long port, void *addr, unsigned long count); -extern void sh7751systemh_insl(unsigned long port, void *addr, unsigned long count); -extern void sh7751systemh_outsb(unsigned long port, const void *addr, unsigned long count); -extern void sh7751systemh_outsw(unsigned long port, const void *addr, unsigned long count); -extern void sh7751systemh_outsl(unsigned long port, const void *addr, unsigned long count); - -extern unsigned char sh7751systemh_readb(unsigned long addr); -extern unsigned short sh7751systemh_readw(unsigned long addr); -extern unsigned int sh7751systemh_readl(unsigned long addr); -extern void sh7751systemh_writeb(unsigned char b, unsigned long addr); -extern void sh7751systemh_writew(unsigned short b, unsigned long addr); -extern void sh7751systemh_writel(unsigned int b, unsigned long addr); - -extern unsigned long sh7751systemh_isa_port2addr(unsigned long offset); - -#endif /* __ASM_SH_SYSTEMH_IO_H */ -
diff --git a/include/asm-sh/systemh/7751systemh.h b/include/asm-sh/systemh7751.h similarity index 96% rename from include/asm-sh/systemh/7751systemh.h rename to include/asm-sh/systemh7751.h index 4170531..b143bb2 100644 --- a/include/asm-sh/systemh/7751systemh.h +++ b/include/asm-sh/systemh7751.h
@@ -65,4 +65,7 @@ #define IRQ_79C973 13 +#define __IO_PREFIX sh7751systemh +#include <asm/io_generic.h> + #endif /* __ASM_SH_SYSTEMH_7751SYSTEMH_H */
diff --git a/include/asm-sh/thread_info.h b/include/asm-sh/thread_info.h index 7345350..3ebc3f9 100644 --- a/include/asm-sh/thread_info.h +++ b/include/asm-sh/thread_info.h
@@ -9,8 +9,8 @@ * Copyright (C) 2002 David Howells (dhowells@redhat.com) * - Incorporating suggestions made by Linus Torvalds and Dave Miller */ - #ifdef __KERNEL__ +#include <asm/page.h> #ifndef __ASSEMBLY__ #include <asm/processor.h> @@ -21,7 +21,10 @@ unsigned long flags; /* low level flags */ __u32 cpu; int preempt_count; /* 0 => preemptable, <0 => BUG */ + mm_segment_t addr_limit; /* thread address space */ struct restart_block restart_block; + unsigned long previous_sp; /* sp of previous stack in case + of nested IRQ stacks */ __u8 supervisor_stack[0]; }; @@ -29,6 +32,13 @@ #define PREEMPT_ACTIVE 0x10000000 +#ifdef CONFIG_4KSTACKS +#define THREAD_SIZE (PAGE_SIZE) +#else +#define THREAD_SIZE (PAGE_SIZE * 2) +#endif +#define STACK_WARN (THREAD_SIZE / 8) + /* * macros/functions for gaining access to the thread information structure */ @@ -40,6 +50,7 @@ .flags = 0, \ .cpu = 0, \ .preempt_count = 1, \ + .addr_limit = KERNEL_DS, \ .restart_block = { \ .fn = do_no_restart_syscall, \ }, \ @@ -48,24 +59,42 @@ #define init_thread_info (init_thread_union.thread_info) #define init_stack (init_thread_union.stack) +/* how to get the current stack pointer from C */ +register unsigned long current_stack_pointer asm("r15") __attribute_used__; + /* how to get the thread information struct from C */ static inline struct thread_info *current_thread_info(void) { struct thread_info *ti; +#ifdef CONFIG_CPU_HAS_SR_RB __asm__("stc r7_bank, %0" : "=r" (ti)); +#else + unsigned long __dummy; + + __asm__ __volatile__ ( + "mov r15, %0\n\t" + "and %1, %0\n\t" + : "=&r" (ti), "=r" (__dummy) + : "1" (~(THREAD_SIZE - 1)) + : "memory"); +#endif + return ti; } /* thread information allocation */ -#define THREAD_SIZE (2*PAGE_SIZE) -#define alloc_thread_info(ti) ((struct thread_info *) __get_free_pages(GFP_KERNEL,1)) -#define free_thread_info(ti) free_pages((unsigned long) (ti), 1) +#ifdef CONFIG_DEBUG_STACK_USAGE +#define alloc_thread_info(ti) kzalloc(THREAD_SIZE, GFP_KERNEL) +#else +#define alloc_thread_info(ti) kmalloc(THREAD_SIZE, GFP_KERNEL) +#endif +#define free_thread_info(ti) kfree(ti) #else /* !__ASSEMBLY__ */ /* how to get the thread information struct from ASM */ #define GET_THREAD_INFO(reg) \ - stc r7_bank, reg + stc r7_bank, reg #endif @@ -79,18 +108,18 @@ #define TIF_NOTIFY_RESUME 1 /* resumption notification requested */ #define TIF_SIGPENDING 2 /* signal pending */ #define TIF_NEED_RESCHED 3 /* rescheduling necessary */ +#define TIF_RESTORE_SIGMASK 4 /* restore signal mask in do_signal() */ #define TIF_USEDFPU 16 /* FPU was used by this task this quantum (SMP) */ #define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling TIF_NEED_RESCHED */ #define TIF_MEMDIE 18 -#define TIF_USERSPACE 31 /* true if FS sets userspace */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) #define _TIF_SIGPENDING (1<<TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED) +#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) #define _TIF_USEDFPU (1<<TIF_USEDFPU) #define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG) -#define _TIF_USERSPACE (1<<TIF_USERSPACE) #define _TIF_WORK_MASK 0x000000FE /* work to do on interrupt/exception return */ #define _TIF_ALLWORK_MASK 0x000000FF /* work to do on any return to u-space */
diff --git a/include/asm-sh/timer.h b/include/asm-sh/timer.h index dd6579c..c7ab280 100644 --- a/include/asm-sh/timer.h +++ b/include/asm-sh/timer.h
@@ -6,6 +6,8 @@ struct sys_timer_ops { int (*init)(void); + int (*start)(void); + int (*stop)(void); unsigned long (*get_offset)(void); unsigned long (*get_frequency)(void); };
diff --git a/include/asm-sh/titan.h b/include/asm-sh/titan.h new file mode 100644 index 0000000..270a4f4 --- /dev/null +++ b/include/asm-sh/titan.h
@@ -0,0 +1,43 @@ +/* + * Platform defintions for Titan + */ + +#ifndef _ASM_SH_TITAN_TITAN_H +#define _ASM_SH_TITAN_TITAN_H + +#define __IO_PREFIX titan +#include <asm/io_generic.h> + +/* IRQ assignments */ +#define TITAN_IRQ_WAN 2 /* eth0 (WAN) */ +#define TITAN_IRQ_LAN 5 /* eth1 (LAN) */ +#define TITAN_IRQ_MPCIA 8 /* mPCI A */ +#define TITAN_IRQ_MPCIB 11 /* mPCI B */ +#define TITAN_IRQ_USB 11 /* USB */ + +/* + * The external interrupt lines, these take up ints 0 - 15 inclusive + * depending on the priority for the interrupt. In fact the priority + * is the interrupt :-) + */ +#define IRL0_IRQ 0 +#define IRL0_IPR_ADDR INTC_IPRD +#define IRL0_IPR_POS 3 +#define IRL0_PRIORITY 8 + +#define IRL1_IRQ 1 +#define IRL1_IPR_ADDR INTC_IPRD +#define IRL1_IPR_POS 2 +#define IRL1_PRIORITY 8 + +#define IRL2_IRQ 2 +#define IRL2_IPR_ADDR INTC_IPRD +#define IRL2_IPR_POS 1 +#define IRL2_PRIORITY 8 + +#define IRL3_IRQ 3 +#define IRL3_IPR_ADDR INTC_IPRD +#define IRL3_IPR_POS 0 +#define IRL3_PRIORITY 8 + +#endif
diff --git a/include/asm-sh/uaccess.h b/include/asm-sh/uaccess.h index 2cb01861e..5c49ed6 100644 --- a/include/asm-sh/uaccess.h +++ b/include/asm-sh/uaccess.h
@@ -16,21 +16,9 @@ #include <linux/errno.h> #include <linux/sched.h> -/* - * NOTE: Macro/functions in this file depends on threads_info.h implementation. - * Assumes: - * TI_FLAGS == 8 - * TIF_USERSPACE == 31 - * USER_ADDR_LIMIT == 0x80000000 - */ - #define VERIFY_READ 0 #define VERIFY_WRITE 1 -typedef struct { - unsigned int is_user_space; -} mm_segment_t; - /* * The fs value determines whether argument validity checking should be * performed or not. If get_fs() == USER_DS, checking is performed, with @@ -40,16 +28,18 @@ */ #define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) -#define segment_eq(a,b) ((a).is_user_space == (b).is_user_space) -#define USER_ADDR_LIMIT 0x80000000 +#define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFFUL) +#define USER_DS MAKE_MM_SEG(PAGE_OFFSET) -#define KERNEL_DS MAKE_MM_SEG(0) -#define USER_DS MAKE_MM_SEG(1) +#define segment_eq(a,b) ((a).seg == (b).seg) #define get_ds() (KERNEL_DS) #if !defined(CONFIG_MMU) +/* NOMMU is always true */ +#define __addr_ok(addr) (1) + static inline mm_segment_t get_fs(void) { return USER_DS; @@ -76,31 +66,11 @@ return ((addr >= memory_start) && ((addr + size) < memory_end)); } #else /* CONFIG_MMU */ -static inline mm_segment_t get_fs(void) -{ - return MAKE_MM_SEG(test_thread_flag(TIF_USERSPACE)); -} +#define __addr_ok(addr) \ + ((unsigned long)(addr) < (current_thread_info()->addr_limit.seg)) -static inline void set_fs(mm_segment_t s) -{ - unsigned long ti, flag; - __asm__ __volatile__( - "stc r7_bank, %0\n\t" - "mov.l @(8,%0), %1\n\t" - "shal %1\n\t" - "cmp/pl %2\n\t" - "rotcr %1\n\t" - "mov.l %1, @(8,%0)" - : "=&r" (ti), "=&r" (flag) - : "r" (s.is_user_space) - : "t"); -/**** - if (s.is_user_space) - set_thread_flag(TIF_USERSPACE); - else - clear_thread_flag(TIF_USERSPACE); -****/ -} +#define get_fs() (current_thread_info()->addr_limit) +#define set_fs(x) (current_thread_info()->addr_limit = (x)) /* * __access_ok: Check if address with size is OK or not. @@ -108,7 +78,7 @@ * We do three checks: * (1) is it user space? * (2) addr + size --> carry? - * (3) addr + size >= 0x80000000 (USER_ADDR_LIMIT) + * (3) addr + size >= 0x80000000 (PAGE_OFFSET) * * (1) (2) (3) | RESULT * 0 0 0 | ok @@ -201,6 +171,7 @@ __gu_err; \ }) +#ifdef CONFIG_MMU #define __get_user_check(x,ptr,size) \ ({ \ long __gu_err, __gu_val; \ @@ -290,6 +261,18 @@ : "r" (addr) \ : "t"); \ }) +#else /* CONFIG_MMU */ +#define __get_user_check(x,ptr,size) \ +({ \ + long __gu_err, __gu_val; \ + if (__access_ok((unsigned long)(ptr), (size))) { \ + __get_user_size(__gu_val, (ptr), (size), __gu_err); \ + (x) = (__typeof__(*(ptr)))__gu_val; \ + } else \ + __gu_err = -EFAULT; \ + __gu_err; \ +}) +#endif #define __get_user_asm(x, addr, err, insn) \ ({ \ @@ -541,7 +524,7 @@ "3:\n\t" "mov.l 4f, %1\n\t" "jmp @%1\n\t" - " mov %5, %0\n" + " mov #0, %0\n" ".balign 4\n" "4: .long 2b\n" ".previous\n" @@ -550,26 +533,20 @@ " .long 1b,3b\n" ".previous" : "=z" (res), "=&r" (__dummy) - : "0" (0), "r" (__s), "r" (__n), "i" (-EFAULT) + : "0" (0), "r" (__s), "r" (__n) : "t"); return res; } static __inline__ long strnlen_user(const char __user *s, long n) { - if (!access_ok(VERIFY_READ, s, n)) + if (!__addr_ok(s)) return 0; else return __strnlen_user(s, n); } -static __inline__ long strlen_user(const char __user *s) -{ - if (!access_ok(VERIFY_READ, s, 0)) - return 0; - else - return __strnlen_user(s, ~0UL >> 1); -} +#define strlen_user(str) strnlen_user(str, ~0UL >> 1) /* * The exception table consists of pairs of addresses: the first is the
diff --git a/include/asm-sh/unistd.h b/include/asm-sh/unistd.h index 76b5430..5d5e9f9 100644 --- a/include/asm-sh/unistd.h +++ b/include/asm-sh/unistd.h
@@ -292,25 +292,51 @@ #define __NR_mq_getsetattr (__NR_mq_open+5) #define __NR_kexec_load 283 #define __NR_waitid 284 -#define __NR_add_key 285 -#define __NR_request_key 286 -#define __NR_keyctl 287 -#define __NR_ioprio_set 288 -#define __NR_ioprio_get 289 -#define __NR_inotify_init 290 -#define __NR_inotify_add_watch 291 -#define __NR_inotify_rm_watch 292 +/* #define __NR_sys_setaltroot 285 */ +#define __NR_add_key 286 +#define __NR_request_key 287 +#define __NR_keyctl 288 +#define __NR_ioprio_set 289 +#define __NR_ioprio_get 290 +#define __NR_inotify_init 291 +#define __NR_inotify_add_watch 292 +#define __NR_inotify_rm_watch 293 +#define __NR_migrate_pages 294 +#define __NR_openat 295 +#define __NR_mkdirat 296 +#define __NR_mknodat 297 +#define __NR_fchownat 298 +#define __NR_futimesat 299 +#define __NR_newfstatat 300 +#define __NR_unlinkat 301 +#define __NR_renameat 302 +#define __NR_linkat 303 +#define __NR_symlinkat 304 +#define __NR_readlinkat 305 +#define __NR_fchmodat 306 +#define __NR_faccessat 307 +#define __NR_pselect6 308 +#define __NR_ppoll 309 +#define __NR_unshare 310 +#define __NR_set_robust_list 311 +#define __NR_get_robust_list 312 +#define __NR_splice 313 +#define __NR_sync_file_range 314 +#define __NR_tee 315 +#define __NR_vmsplice 316 - -#define NR_syscalls 293 +#define NR_syscalls 317 #ifdef __KERNEL__ -/* user-visible error numbers are in the range -1 - -124: see <asm-sh/errno.h> */ +#include <linux/err.h> + +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: + * see <asm-sh/errno.h> */ #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-124)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ /* Avoid using "res" which is declared to be in register r0; \ errno might expand to a function call and clobber it. */ \ int __err = -(res); \ @@ -444,6 +470,7 @@ #define __ARCH_WANT_SYS_SIGPENDING #define __ARCH_WANT_SYS_SIGPROCMASK #define __ARCH_WANT_SYS_RT_SIGACTION +#define __ARCH_WANT_SYS_RT_SIGSUSPEND #ifdef __KERNEL_SYSCALLS__
diff --git a/include/asm-sh/rts7751r2d/voyagergx_reg.h b/include/asm-sh/voyagergx.h similarity index 98% rename from include/asm-sh/rts7751r2d/voyagergx_reg.h rename to include/asm-sh/voyagergx.h index f031b5d..99b0807 100644 --- a/include/asm-sh/rts7751r2d/voyagergx_reg.h +++ b/include/asm-sh/voyagergx.h
@@ -1,5 +1,5 @@ /* -------------------------------------------------------------------- */ -/* voyagergx_reg.h */ +/* voyagergx.h */ /* -------------------------------------------------------------------- */ /* This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by
diff --git a/include/asm-sh/watchdog.h b/include/asm-sh/watchdog.h index 09ca419..d19ea62 100644 --- a/include/asm-sh/watchdog.h +++ b/include/asm-sh/watchdog.h
@@ -62,7 +62,6 @@ /** * sh_wdt_read_cnt - Read from Counter - * * Reads back the WTCNT value. */ static inline __u8 sh_wdt_read_cnt(void) @@ -72,7 +71,6 @@ /** * sh_wdt_write_cnt - Write to Counter - * * @val: Value to write * * Writes the given value @val to the lower byte of the timer counter. @@ -95,7 +93,6 @@ /** * sh_wdt_write_csr - Write to Control/Status Register - * * @val: Value to write * * Writes the given value @val to the lower byte of the control/status
diff --git a/include/asm-sh64/pgtable.h b/include/asm-sh64/pgtable.h index 54c7821..6b97c4c 100644 --- a/include/asm-sh64/pgtable.h +++ b/include/asm-sh64/pgtable.h
@@ -190,7 +190,9 @@ #endif -#define pgd_page(pgd_entry) ((unsigned long) (pgd_val(pgd_entry) & PAGE_MASK)) +#define pgd_page_vaddr(pgd_entry) ((unsigned long) (pgd_val(pgd_entry) & PAGE_MASK)) +#define pgd_page(pgd) (virt_to_page(pgd_val(pgd))) + /* * PMD defines. Middle level. @@ -219,7 +221,7 @@ #define pmd_none(pmd_entry) (pmd_val((pmd_entry)) == _PMD_EMPTY) #define pmd_bad(pmd_entry) ((pmd_val(pmd_entry) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) -#define pmd_page_kernel(pmd_entry) \ +#define pmd_page_vaddr(pmd_entry) \ ((unsigned long) __va(pmd_val(pmd_entry) & PAGE_MASK)) #define pmd_page(pmd) \
diff --git a/include/asm-sh64/unistd.h b/include/asm-sh64/unistd.h index 9a1590f..c113566 100644 --- a/include/asm-sh64/unistd.h +++ b/include/asm-sh64/unistd.h
@@ -347,8 +347,10 @@ #ifdef __KERNEL__ #define NR_syscalls 321 +#include <linux/err.h> -/* user-visible error numbers are in the range -1 - -125: see <asm-sh64/errno.h> */ +/* user-visible error numbers are in the range -1 - -MAX_ERRNO: + * see <asm-sh64/errno.h> */ #define __syscall_return(type, res) \ do { \ @@ -358,7 +360,7 @@ ** life easier in the system call epilogue (see entry.S) \ */ \ register unsigned long __sr2 __asm__ ("r2") = res; \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ errno = -(res); \ __sr2 = -1; \ } \
diff --git a/include/asm-sparc/libata-portmap.h b/include/asm-sparc/libata-portmap.h deleted file mode 100644 index 75484ef..0000000 --- a/include/asm-sparc/libata-portmap.h +++ /dev/null
@@ -1 +0,0 @@ -#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-sparc/pgtable.h b/include/asm-sparc/pgtable.h index 226c647..4f0a5ba 100644 --- a/include/asm-sparc/pgtable.h +++ b/include/asm-sparc/pgtable.h
@@ -143,10 +143,10 @@ /* */ BTFIXUPDEF_CALL_CONST(struct page *, pmd_page, pmd_t) -BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page, pgd_t) +BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page_vaddr, pgd_t) #define pmd_page(pmd) BTFIXUP_CALL(pmd_page)(pmd) -#define pgd_page(pgd) BTFIXUP_CALL(pgd_page)(pgd) +#define pgd_page_vaddr(pgd) BTFIXUP_CALL(pgd_page_vaddr)(pgd) BTFIXUPDEF_SETHI(none_mask) BTFIXUPDEF_CALL_CONST(int, pte_present, pte_t)
diff --git a/include/asm-sparc64/libata-portmap.h b/include/asm-sparc64/libata-portmap.h deleted file mode 100644 index 75484ef..0000000 --- a/include/asm-sparc64/libata-portmap.h +++ /dev/null
@@ -1 +0,0 @@ -#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h index ebfe395..b12be7a 100644 --- a/include/asm-sparc64/pgtable.h +++ b/include/asm-sparc64/pgtable.h
@@ -630,8 +630,9 @@ #define __pmd_page(pmd) \ ((unsigned long) __va((((unsigned long)pmd_val(pmd))<<11UL))) #define pmd_page(pmd) virt_to_page((void *)__pmd_page(pmd)) -#define pud_page(pud) \ +#define pud_page_vaddr(pud) \ ((unsigned long) __va((((unsigned long)pud_val(pud))<<11UL))) +#define pud_page(pud) virt_to_page((void *)pud_page_vaddr(pud)) #define pmd_none(pmd) (!pmd_val(pmd)) #define pmd_bad(pmd) (0) #define pmd_present(pmd) (pmd_val(pmd) != 0U) @@ -653,7 +654,7 @@ /* Find an entry in the second-level page table.. */ #define pmd_offset(pudp, address) \ - ((pmd_t *) pud_page(*(pudp)) + \ + ((pmd_t *) pud_page_vaddr(*(pudp)) + \ (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))) /* Find an entry in the third-level page table.. */
diff --git a/include/asm-um/alternative-asm.i b/include/asm-um/alternative-asm.i new file mode 100644 index 0000000..cae9fac --- /dev/null +++ b/include/asm-um/alternative-asm.i
@@ -0,0 +1,6 @@ +#ifndef __UM_ALTERNATIVE_ASM_I +#define __UM_ALTERNATIVE_ASM_I + +#include "asm/arch/alternative-asm.i" + +#endif
diff --git a/include/asm-um/frame.i b/include/asm-um/frame.i new file mode 100644 index 0000000..09d5dca --- /dev/null +++ b/include/asm-um/frame.i
@@ -0,0 +1,6 @@ +#ifndef __UM_FRAME_I +#define __UM_FRAME_I + +#include "asm/arch/frame.i" + +#endif
diff --git a/include/asm-um/pgtable-2level.h b/include/asm-um/pgtable-2level.h index ffe017f..6050e0e 100644 --- a/include/asm-um/pgtable-2level.h +++ b/include/asm-um/pgtable-2level.h
@@ -41,7 +41,7 @@ #define pfn_pte(pfn, prot) __pte(pfn_to_phys(pfn) | pgprot_val(prot)) #define pfn_pmd(pfn, prot) __pmd(pfn_to_phys(pfn) | pgprot_val(prot)) -#define pmd_page_kernel(pmd) \ +#define pmd_page_vaddr(pmd) \ ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) /*
diff --git a/include/asm-um/pgtable-3level.h b/include/asm-um/pgtable-3level.h index 786c257..ca0c2a9 100644 --- a/include/asm-um/pgtable-3level.h +++ b/include/asm-um/pgtable-3level.h
@@ -74,11 +74,12 @@ set_pud(pud, __pud(0)); } -#define pud_page(pud) \ +#define pud_page(pud) phys_to_page(pud_val(pud) & PAGE_MASK) +#define pud_page_vaddr(pud) \ ((struct page *) __va(pud_val(pud) & PAGE_MASK)) /* Find an entry in the second-level page table.. */ -#define pmd_offset(pud, address) ((pmd_t *) pud_page(*(pud)) + \ +#define pmd_offset(pud, address) ((pmd_t *) pud_page_vaddr(*(pud)) + \ pmd_index(address)) static inline unsigned long pte_pfn(pte_t pte)
diff --git a/include/asm-um/pgtable.h b/include/asm-um/pgtable.h index ac64eb9..4862daf 100644 --- a/include/asm-um/pgtable.h +++ b/include/asm-um/pgtable.h
@@ -349,7 +349,7 @@ return pte; } -#define pmd_page_kernel(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) +#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & PAGE_MASK)) /* * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD] @@ -389,7 +389,7 @@ */ #define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir, address) \ - ((pte_t *) pmd_page_kernel(*(dir)) + pte_index(address)) + ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address)) #define pte_offset_map(dir, address) \ ((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address)) #define pte_offset_map_nested(dir, address) pte_offset_map(dir, address)
diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h index 824c288..d99bbdd 100644 --- a/include/asm-um/processor-generic.h +++ b/include/asm-um/processor-generic.h
@@ -13,6 +13,7 @@ #include "asm/ptrace.h" #include "choose-mode.h" #include "registers.h" +#include "sysdep/archsetjmp.h" struct mm_struct; @@ -43,8 +44,7 @@ #endif #ifdef CONFIG_MODE_SKAS struct { - void *switch_buf; - void *fork_buf; + jmp_buf switch_buf; int mm_count; } skas; #endif @@ -138,9 +138,7 @@ #ifdef CONFIG_MODE_SKAS #define KSTK_REG(tsk, reg) \ - ({ union uml_pt_regs regs; \ - get_thread_regs(®s, tsk->thread.mode.skas.switch_buf); \ - UPT_REG(®s, reg); }) + get_thread_reg(reg, &tsk->thread.mode.skas.switch_buf) #else #define KSTK_REG(tsk, reg) (0xbadbabe) #endif
diff --git a/include/asm-um/ptrace-generic.h b/include/asm-um/ptrace-generic.h index a36f537..99c87c5 100644 --- a/include/asm-um/ptrace-generic.h +++ b/include/asm-um/ptrace-generic.h
@@ -8,19 +8,7 @@ #ifndef __ASSEMBLY__ - -#define pt_regs pt_regs_subarch -#define show_regs show_regs_subarch -#define send_sigtrap send_sigtrap_subarch - -#include "asm/arch/ptrace.h" - -#undef pt_regs -#undef show_regs -#undef send_sigtrap -#undef user_mode -#undef instruction_pointer - +#include "asm/arch/ptrace-abi.h" #include "sysdep/ptrace.h" struct pt_regs {
diff --git a/include/asm-um/ptrace-x86_64.h b/include/asm-um/ptrace-x86_64.h index c894e68..03b4af4 100644 --- a/include/asm-um/ptrace-x86_64.h +++ b/include/asm-um/ptrace-x86_64.h
@@ -11,21 +11,20 @@ #include "asm/errno.h" #include "asm/host_ldt.h" -#define signal_fault signal_fault_x86_64 #define __FRAME_OFFSETS /* Needed to get the R* macros */ #include "asm/ptrace-generic.h" -#undef signal_fault #define HOST_AUDIT_ARCH AUDIT_ARCH_X86_64 -void signal_fault(struct pt_regs_subarch *regs, void *frame, char *where); - +/* Also defined in sysdep/ptrace.h, so may already be defined. */ +#ifndef FS_BASE #define FS_BASE (21 * sizeof(unsigned long)) #define GS_BASE (22 * sizeof(unsigned long)) #define DS (23 * sizeof(unsigned long)) #define ES (24 * sizeof(unsigned long)) #define FS (25 * sizeof(unsigned long)) #define GS (26 * sizeof(unsigned long)) +#endif #define PT_REGS_RBX(r) UPT_RBX(&(r)->regs) #define PT_REGS_RCX(r) UPT_RCX(&(r)->regs)
diff --git a/include/asm-v850/unistd.h b/include/asm-v850/unistd.h index bcb44bf..552b7c8 100644 --- a/include/asm-v850/unistd.h +++ b/include/asm-v850/unistd.h
@@ -238,12 +238,13 @@ #ifdef __KERNEL__ #include <asm/clinkage.h> +#include <linux/err.h> #define __syscall_return(type, res) \ do { \ - /* user-visible error numbers are in the range -1 - -124: \ + /* user-visible error numbers are in the range -1 - -MAX_ERRNO: \ see <asm-v850/errno.h> */ \ - if (__builtin_expect ((unsigned long)(res) >= (unsigned long)(-125), 0)) { \ + if (__builtin_expect ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO), 0)) { \ errno = -(res); \ res = -1; \ } \
diff --git a/include/asm-x86_64/Kbuild b/include/asm-x86_64/Kbuild index 40f2f13..1ee9b07 100644 --- a/include/asm-x86_64/Kbuild +++ b/include/asm-x86_64/Kbuild
@@ -11,6 +11,7 @@ header-y += ldt.h header-y += msr.h header-y += prctl.h +header-y += ptrace-abi.h header-y += setup.h header-y += sigcontext32.h header-y += ucontext.h
diff --git a/include/asm-x86_64/acpi.h b/include/asm-x86_64/acpi.h index 2c95a31..ed59aa4 100644 --- a/include/asm-x86_64/acpi.h +++ b/include/asm-x86_64/acpi.h
@@ -155,8 +155,6 @@ #endif /*CONFIG_ACPI_SLEEP*/ -#define boot_cpu_physical_apicid boot_cpu_id - extern int acpi_disabled; extern int acpi_pci_disabled;
diff --git a/include/asm-x86_64/alternative-asm.i b/include/asm-x86_64/alternative-asm.i new file mode 100644 index 0000000..e4041f4 --- /dev/null +++ b/include/asm-x86_64/alternative-asm.i
@@ -0,0 +1,14 @@ +#include <linux/config.h> + +#ifdef CONFIG_SMP + .macro LOCK_PREFIX +1: lock + .section .smp_locks,"a" + .align 8 + .quad 1b + .previous + .endm +#else + .macro LOCK_PREFIX + .endm +#endif
diff --git a/include/asm-x86_64/apic.h b/include/asm-x86_64/apic.h index 9c96a0a..9e66d32 100644 --- a/include/asm-x86_64/apic.h +++ b/include/asm-x86_64/apic.h
@@ -17,6 +17,8 @@ extern int apic_verbosity; extern int apic_runs_main_timer; +extern int ioapic_force; +extern int apic_mapped; /* * Define the default level of output to be very little @@ -29,8 +31,6 @@ printk(s, ##a); \ } while (0) -#ifdef CONFIG_X86_LOCAL_APIC - struct pt_regs; /* @@ -95,17 +95,12 @@ #define K8_APIC_EXT_INT_MSG_EXT 0x7 #define K8_APIC_EXT_LVT_ENTRY_THRESHOLD 0 -extern int disable_timer_pin_1; - - void smp_send_timer_broadcast_ipi(void); void switch_APIC_timer_to_ipi(void *cpumask); void switch_ipi_to_APIC_timer(void *cpumask); #define ARCH_APICTIMER_STOPS_ON_C3 1 -#endif /* CONFIG_X86_LOCAL_APIC */ - extern unsigned boot_cpu_id; #endif /* __ASM_APIC_H */
diff --git a/include/asm-x86_64/bitops.h b/include/asm-x86_64/bitops.h index f7ba57b..5b535ea 100644 --- a/include/asm-x86_64/bitops.h +++ b/include/asm-x86_64/bitops.h
@@ -399,6 +399,8 @@ return r+1; } +#define ARCH_HAS_FAST_MULTIPLIER 1 + #include <asm-generic/bitops/hweight.h> #endif /* __KERNEL__ */
diff --git a/include/asm-x86_64/calgary.h b/include/asm-x86_64/calgary.h index 4e39195..6b93f5a 100644 --- a/include/asm-x86_64/calgary.h +++ b/include/asm-x86_64/calgary.h
@@ -24,7 +24,6 @@ #ifndef _ASM_X86_64_CALGARY_H #define _ASM_X86_64_CALGARY_H -#include <linux/config.h> #include <linux/spinlock.h> #include <linux/device.h> #include <linux/dma-mapping.h> @@ -34,12 +33,12 @@ unsigned long it_base; /* mapped address of tce table */ unsigned long it_hint; /* Hint for next alloc */ unsigned long *it_map; /* A simple allocation bitmap for now */ + void __iomem *bbar; /* Bridge BAR */ + u64 tar_val; /* Table Address Register */ + struct timer_list watchdog_timer; spinlock_t it_lock; /* Protects it_map */ unsigned int it_size; /* Size of iommu table in entries */ unsigned char it_busno; /* Bus number this table belongs to */ - void __iomem *bbar; - u64 tar_val; - struct timer_list watchdog_timer; }; #define TCE_TABLE_SIZE_UNSPECIFIED ~0
diff --git a/include/asm-x86_64/dwarf2.h b/include/asm-x86_64/dwarf2.h index 0744db7..eedc085 100644 --- a/include/asm-x86_64/dwarf2.h +++ b/include/asm-x86_64/dwarf2.h
@@ -13,7 +13,7 @@ away for older version. */ -#ifdef CONFIG_UNWIND_INFO +#ifdef CONFIG_AS_CFI #define CFI_STARTPROC .cfi_startproc #define CFI_ENDPROC .cfi_endproc @@ -28,6 +28,11 @@ #define CFI_REMEMBER_STATE .cfi_remember_state #define CFI_RESTORE_STATE .cfi_restore_state #define CFI_UNDEFINED .cfi_undefined +#ifdef CONFIG_AS_CFI_SIGNAL_FRAME +#define CFI_SIGNAL_FRAME .cfi_signal_frame +#else +#define CFI_SIGNAL_FRAME +#endif #else @@ -45,6 +50,7 @@ #define CFI_REMEMBER_STATE # #define CFI_RESTORE_STATE # #define CFI_UNDEFINED # +#define CFI_SIGNAL_FRAME # #endif
diff --git a/include/asm-x86_64/e820.h b/include/asm-x86_64/e820.h index 670a338..fa20867 100644 --- a/include/asm-x86_64/e820.h +++ b/include/asm-x86_64/e820.h
@@ -19,13 +19,9 @@ #define E820_RAM 1 #define E820_RESERVED 2 -#define E820_ACPI 3 /* usable as RAM once ACPI tables have been read */ +#define E820_ACPI 3 #define E820_NVS 4 -#define HIGH_MEMORY (1024*1024) - -#define LOWMEMSIZE() (0x9f000) - #ifndef __ASSEMBLY__ struct e820entry { u64 addr; /* start of memory segment */ @@ -46,17 +42,16 @@ extern void contig_e820_setup(void); extern unsigned long e820_end_of_ram(void); extern void e820_reserve_resources(void); +extern void e820_mark_nosave_regions(void); extern void e820_print_map(char *who); extern int e820_any_mapped(unsigned long start, unsigned long end, unsigned type); extern int e820_all_mapped(unsigned long start, unsigned long end, unsigned type); -extern void e820_bootmem_free(pg_data_t *pgdat, unsigned long start,unsigned long end); extern void e820_setup_gap(void); -extern unsigned long e820_hole_size(unsigned long start_pfn, - unsigned long end_pfn); +extern void e820_register_active_regions(int nid, + unsigned long start_pfn, unsigned long end_pfn); -extern void __init parse_memopt(char *p, char **end); -extern void __init parse_memmapopt(char *p, char **end); +extern void finish_e820_parsing(void); extern struct e820map e820;
diff --git a/include/asm-x86_64/fixmap.h b/include/asm-x86_64/fixmap.h index 0b4ffbd..1b620db 100644 --- a/include/asm-x86_64/fixmap.h +++ b/include/asm-x86_64/fixmap.h
@@ -37,13 +37,9 @@ VSYSCALL_FIRST_PAGE = VSYSCALL_LAST_PAGE + ((VSYSCALL_END-VSYSCALL_START) >> PAGE_SHIFT) - 1, VSYSCALL_HPET, FIX_HPET_BASE, -#ifdef CONFIG_X86_LOCAL_APIC FIX_APIC_BASE, /* local (CPU) APIC) -- required for SMP or not */ -#endif -#ifdef CONFIG_X86_IO_APIC FIX_IO_APIC_BASE_0, FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS-1, -#endif __end_of_fixed_addresses };
diff --git a/include/asm-x86_64/genapic.h b/include/asm-x86_64/genapic.h index 50b38e7..81e7146 100644 --- a/include/asm-x86_64/genapic.h +++ b/include/asm-x86_64/genapic.h
@@ -16,7 +16,6 @@ char *name; u32 int_delivery_mode; u32 int_dest_mode; - u32 int_delivery_dest; /* for quick IPIs */ int (*apic_id_registered)(void); cpumask_t (*target_cpus)(void); void (*init_apic_ldr)(void);
diff --git a/include/asm-x86_64/i387.h b/include/asm-x86_64/i387.h index cba8a3b..0217b74 100644 --- a/include/asm-x86_64/i387.h +++ b/include/asm-x86_64/i387.h
@@ -24,6 +24,7 @@ extern void mxcsr_feature_mask_init(void); extern void init_fpu(struct task_struct *child); extern int save_i387(struct _fpstate __user *buf); +extern asmlinkage void math_state_restore(void); /* * FPU lazy state save handling... @@ -31,7 +32,9 @@ #define unlazy_fpu(tsk) do { \ if (task_thread_info(tsk)->status & TS_USEDFPU) \ - save_init_fpu(tsk); \ + save_init_fpu(tsk); \ + else \ + tsk->fpu_counter = 0; \ } while (0) /* Ignore delayed exceptions from user space */ @@ -134,8 +137,8 @@ #else : [fx] "cdaSDb" (fx), "0" (0)); #endif - if (unlikely(err)) - __clear_user(fx, sizeof(struct i387_fxsave_struct)); + if (unlikely(err) && __clear_user(fx, sizeof(struct i387_fxsave_struct))) + err = -EFAULT; /* No need to clear here because the caller clears USED_MATH */ return err; }
diff --git a/include/asm-x86_64/intel_arch_perfmon.h b/include/asm-x86_64/intel_arch_perfmon.h index 59c3964..8633331 100644 --- a/include/asm-x86_64/intel_arch_perfmon.h +++ b/include/asm-x86_64/intel_arch_perfmon.h
@@ -14,6 +14,18 @@ #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL (0x3c) #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8) -#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT (1 << 0) +#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX (0) +#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT \ + (1 << (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX)) + +union cpuid10_eax { + struct { + unsigned int version_id:8; + unsigned int num_counters:8; + unsigned int bit_width:8; + unsigned int mask_length:8; + } split; + unsigned int full; +}; #endif /* X86_64_INTEL_ARCH_PERFMON_H */
diff --git a/include/asm-x86_64/io_apic.h b/include/asm-x86_64/io_apic.h index fb7a090..5d1b5c6 100644 --- a/include/asm-x86_64/io_apic.h +++ b/include/asm-x86_64/io_apic.h
@@ -10,8 +10,6 @@ * Copyright (C) 1997, 1998, 1999, 2000 Ingo Molnar */ -#ifdef CONFIG_X86_IO_APIC - #ifdef CONFIG_PCI_MSI static inline int use_pci_vector(void) {return 1;} static inline void disable_edge_ioapic_vector(unsigned int vector) { } @@ -209,10 +207,6 @@ extern int sis_apic_bug; /* dummy */ -#else /* !CONFIG_X86_IO_APIC */ -#define io_apic_assign_pci_irqs 0 -#endif - extern int assign_irq_vector(int irq); void enable_NMI_through_LVT0 (void * dummy);
diff --git a/include/asm-x86_64/irq.h b/include/asm-x86_64/irq.h index 9db5a1b..43469d8a 100644 --- a/include/asm-x86_64/irq.h +++ b/include/asm-x86_64/irq.h
@@ -44,9 +44,7 @@ return ((irq == 2) ? 9 : irq); } -#ifdef CONFIG_X86_LOCAL_APIC #define ARCH_HAS_NMI_WATCHDOG /* See include/linux/nmi.h */ -#endif #ifdef CONFIG_HOTPLUG_CPU #include <linux/cpumask.h>
diff --git a/include/asm-x86_64/kexec.h b/include/asm-x86_64/kexec.h index c564bae..5fab957 100644 --- a/include/asm-x86_64/kexec.h +++ b/include/asm-x86_64/kexec.h
@@ -1,6 +1,27 @@ #ifndef _X86_64_KEXEC_H #define _X86_64_KEXEC_H +#define PA_CONTROL_PAGE 0 +#define VA_CONTROL_PAGE 1 +#define PA_PGD 2 +#define VA_PGD 3 +#define PA_PUD_0 4 +#define VA_PUD_0 5 +#define PA_PMD_0 6 +#define VA_PMD_0 7 +#define PA_PTE_0 8 +#define VA_PTE_0 9 +#define PA_PUD_1 10 +#define VA_PUD_1 11 +#define PA_PMD_1 12 +#define VA_PMD_1 13 +#define PA_PTE_1 14 +#define VA_PTE_1 15 +#define PA_TABLE_PAGE 16 +#define PAGES_NR 17 + +#ifndef __ASSEMBLY__ + #include <linux/string.h> #include <asm/page.h> @@ -64,4 +85,12 @@ newregs->rip = (unsigned long)current_text_addr(); } } + +NORET_TYPE void +relocate_kernel(unsigned long indirection_page, + unsigned long page_list, + unsigned long start_address) ATTRIB_NORET; + +#endif /* __ASSEMBLY__ */ + #endif /* _X86_64_KEXEC_H */
diff --git a/include/asm-x86_64/libata-portmap.h b/include/asm-x86_64/libata-portmap.h deleted file mode 100644 index 75484ef..0000000 --- a/include/asm-x86_64/libata-portmap.h +++ /dev/null
@@ -1 +0,0 @@ -#include <asm-generic/libata-portmap.h>
diff --git a/include/asm-x86_64/linkage.h b/include/asm-x86_64/linkage.h index 291c2d0..b5f39d0 100644 --- a/include/asm-x86_64/linkage.h +++ b/include/asm-x86_64/linkage.h
@@ -1,6 +1,6 @@ #ifndef __ASM_LINKAGE_H #define __ASM_LINKAGE_H -/* Nothing to see here... */ +#define __ALIGN .p2align 4,,15 #endif
diff --git a/include/asm-x86_64/mach_apic.h b/include/asm-x86_64/mach_apic.h index 0acea44..d334224 100644 --- a/include/asm-x86_64/mach_apic.h +++ b/include/asm-x86_64/mach_apic.h
@@ -16,7 +16,6 @@ #define INT_DELIVERY_MODE (genapic->int_delivery_mode) #define INT_DEST_MODE (genapic->int_dest_mode) -#define INT_DELIVERY_DEST (genapic->int_delivery_dest) #define TARGET_CPUS (genapic->target_cpus()) #define apic_id_registered (genapic->apic_id_registered) #define init_apic_ldr (genapic->init_apic_ldr)
diff --git a/include/asm-x86_64/mce.h b/include/asm-x86_64/mce.h index d13687d..5a11146 100644 --- a/include/asm-x86_64/mce.h +++ b/include/asm-x86_64/mce.h
@@ -99,6 +99,8 @@ } #endif +void mce_log_therm_throt_event(unsigned int cpu, __u64 status); + extern atomic_t mce_entry; #endif
diff --git a/include/asm-x86_64/mmx.h b/include/asm-x86_64/mmx.h deleted file mode 100644 index 46b71da..0000000 --- a/include/asm-x86_64/mmx.h +++ /dev/null
@@ -1,14 +0,0 @@ -#ifndef _ASM_MMX_H -#define _ASM_MMX_H - -/* - * MMX 3Dnow! helper operations - */ - -#include <linux/types.h> - -extern void *_mmx_memcpy(void *to, const void *from, size_t size); -extern void mmx_clear_page(void *page); -extern void mmx_copy_page(void *to, void *from); - -#endif
diff --git a/include/asm-x86_64/mpspec.h b/include/asm-x86_64/mpspec.h index 14fc3dd..017fddb 100644 --- a/include/asm-x86_64/mpspec.h +++ b/include/asm-x86_64/mpspec.h
@@ -159,13 +159,7 @@ #define MAX_MP_BUSSES 256 /* Each PCI slot may be a combo card with its own bus. 4 IRQ pins per slot. */ #define MAX_IRQ_SOURCES (MAX_MP_BUSSES * 4) -enum mp_bustype { - MP_BUS_ISA = 1, - MP_BUS_EISA, - MP_BUS_PCI, - MP_BUS_MCA -}; -extern unsigned char mp_bus_id_to_type [MAX_MP_BUSSES]; +extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES); extern int mp_bus_id_to_pci_bus [MAX_MP_BUSSES]; extern unsigned int boot_cpu_physical_apicid; @@ -178,18 +172,15 @@ extern struct mpc_config_intsrc mp_irqs [MAX_IRQ_SOURCES]; extern int mpc_default_type; extern unsigned long mp_lapic_addr; -extern int pic_mode; #ifdef CONFIG_ACPI extern void mp_register_lapic (u8 id, u8 enabled); extern void mp_register_lapic_address (u64 address); -#ifdef CONFIG_X86_IO_APIC extern void mp_register_ioapic (u8 id, u32 address, u32 gsi_base); extern void mp_override_legacy_irq (u8 bus_irq, u8 polarity, u8 trigger, u32 gsi); extern void mp_config_acpi_legacy_irqs (void); extern int mp_register_gsi (u32 gsi, int triggering, int polarity); -#endif /*CONFIG_X86_IO_APIC*/ #endif extern int using_apic_timer;
diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h index 10f8b51..37e1941 100644 --- a/include/asm-x86_64/msr.h +++ b/include/asm-x86_64/msr.h
@@ -66,14 +66,25 @@ #define rdtscl(low) \ __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx") +#define rdtscp(low,high,aux) \ + asm volatile (".byte 0x0f,0x01,0xf9" : "=a" (low), "=d" (high), "=c" (aux)) + #define rdtscll(val) do { \ unsigned int __a,__d; \ asm volatile("rdtsc" : "=a" (__a), "=d" (__d)); \ (val) = ((unsigned long)__a) | (((unsigned long)__d)<<32); \ } while(0) +#define rdtscpll(val, aux) do { \ + unsigned long __a, __d; \ + asm volatile (".byte 0x0f,0x01,0xf9" : "=a" (__a), "=d" (__d), "=c" (aux)); \ + (val) = (__d << 32) | __a; \ +} while (0) + #define write_tsc(val1,val2) wrmsr(0x10, val1, val2) +#define write_rdtscp_aux(val) wrmsr(0xc0000103, val, 0) + #define rdpmc(counter,low,high) \ __asm__ __volatile__("rdpmc" \ : "=a" (low), "=d" (high) \
diff --git a/include/asm-x86_64/mutex.h b/include/asm-x86_64/mutex.h index 06fab6d..16396b1 100644 --- a/include/asm-x86_64/mutex.h +++ b/include/asm-x86_64/mutex.h
@@ -25,13 +25,9 @@ \ __asm__ __volatile__( \ LOCK_PREFIX " decl (%%rdi) \n" \ - " js 2f \n" \ - "1: \n" \ - \ - LOCK_SECTION_START("") \ - "2: call "#fail_fn" \n" \ - " jmp 1b \n" \ - LOCK_SECTION_END \ + " jns 1f \n" \ + " call "#fail_fn" \n" \ + "1:" \ \ :"=D" (dummy) \ : "D" (v) \ @@ -75,13 +71,9 @@ \ __asm__ __volatile__( \ LOCK_PREFIX " incl (%%rdi) \n" \ - " jle 2f \n" \ - "1: \n" \ - \ - LOCK_SECTION_START("") \ - "2: call "#fail_fn" \n" \ - " jmp 1b \n" \ - LOCK_SECTION_END \ + " jg 1f \n" \ + " call "#fail_fn" \n" \ + "1: " \ \ :"=D" (dummy) \ : "D" (v) \
diff --git a/include/asm-x86_64/nmi.h b/include/asm-x86_64/nmi.h index efb45c8..cbf2669 100644 --- a/include/asm-x86_64/nmi.h +++ b/include/asm-x86_64/nmi.h
@@ -7,24 +7,13 @@ #include <linux/pm.h> #include <asm/io.h> -struct pt_regs; - -typedef int (*nmi_callback_t)(struct pt_regs * regs, int cpu); - /** - * set_nmi_callback + * do_nmi_callback * - * Set a handler for an NMI. Only one handler may be - * set. Return 1 if the NMI was handled. + * Check to see if a callback exists and execute it. Return 1 + * if the handler exists and was handled successfully. */ -void set_nmi_callback(nmi_callback_t callback); - -/** - * unset_nmi_callback - * - * Remove the handler previously set. - */ -void unset_nmi_callback(void); +int do_nmi_callback(struct pt_regs *regs, int cpu); #ifdef CONFIG_PM @@ -48,25 +37,32 @@ #endif /* CONFIG_PM */ extern void default_do_nmi(struct pt_regs *); -extern void die_nmi(char *str, struct pt_regs *regs); +extern void die_nmi(char *str, struct pt_regs *regs, int do_panic); #define get_nmi_reason() inb(0x61) extern int panic_on_timeout; extern int unknown_nmi_panic; +extern int nmi_watchdog_enabled; extern int check_nmi_watchdog(void); - -extern void setup_apic_nmi_watchdog (void); -extern int reserve_lapic_nmi(void); -extern void release_lapic_nmi(void); +extern int avail_to_resrv_perfctr_nmi_bit(unsigned int); +extern int avail_to_resrv_perfctr_nmi(unsigned int); +extern int reserve_perfctr_nmi(unsigned int); +extern void release_perfctr_nmi(unsigned int); +extern int reserve_evntsel_nmi(unsigned int); +extern void release_evntsel_nmi(unsigned int); + +extern void setup_apic_nmi_watchdog (void *); +extern void stop_apic_nmi_watchdog (void *); extern void disable_timer_nmi_watchdog(void); extern void enable_timer_nmi_watchdog(void); -extern void nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); +extern int nmi_watchdog_tick (struct pt_regs * regs, unsigned reason); extern void nmi_watchdog_default(void); extern int setup_nmi_watchdog(char *); +extern atomic_t nmi_active; extern unsigned int nmi_watchdog; #define NMI_DEFAULT -1 #define NMI_NONE 0
diff --git a/include/asm-x86_64/pci-direct.h b/include/asm-x86_64/pci-direct.h index 036b6ca..eba9cb4 100644 --- a/include/asm-x86_64/pci-direct.h +++ b/include/asm-x86_64/pci-direct.h
@@ -2,47 +2,15 @@ #define ASM_PCI_DIRECT_H 1 #include <linux/types.h> -#include <asm/io.h> /* Direct PCI access. This is used for PCI accesses in early boot before the PCI subsystem works. */ -#define PDprintk(x...) +extern u32 read_pci_config(u8 bus, u8 slot, u8 func, u8 offset); +extern u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset); +extern u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset); +extern void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val); -static inline u32 read_pci_config(u8 bus, u8 slot, u8 func, u8 offset) -{ - u32 v; - outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); - v = inl(0xcfc); - if (v != 0xffffffff) - PDprintk("%x reading 4 from %x: %x\n", slot, offset, v); - return v; -} - -static inline u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset) -{ - u8 v; - outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); - v = inb(0xcfc + (offset&3)); - PDprintk("%x reading 1 from %x: %x\n", slot, offset, v); - return v; -} - -static inline u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset) -{ - u16 v; - outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); - v = inw(0xcfc + (offset&2)); - PDprintk("%x reading 2 from %x: %x\n", slot, offset, v); - return v; -} - -static inline void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, - u32 val) -{ - PDprintk("%x writing to %x: %x\n", slot, offset, val); - outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8); - outl(val, 0xcfc); -} +extern int early_pci_allowed(void); #endif
diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index b47c3df..14996d9 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h
@@ -9,20 +9,24 @@ /* Per processor datastructure. %gs points to it while the kernel runs */ struct x8664_pda { - struct task_struct *pcurrent; /* Current process */ - unsigned long data_offset; /* Per cpu data offset from linker address */ - unsigned long kernelstack; /* top of kernel stack for current */ - unsigned long oldrsp; /* user rsp for system call */ -#if DEBUG_STKSZ > EXCEPTION_STKSZ - unsigned long debugstack; /* #DB/#BP stack. */ + struct task_struct *pcurrent; /* 0 Current process */ + unsigned long data_offset; /* 8 Per cpu data offset from linker + address */ + unsigned long kernelstack; /* 16 top of kernel stack for current */ + unsigned long oldrsp; /* 24 user rsp for system call */ + int irqcount; /* 32 Irq nesting counter. Starts with -1 */ + int cpunumber; /* 36 Logical CPU number */ +#ifdef CONFIG_CC_STACKPROTECTOR + unsigned long stack_canary; /* 40 stack canary value */ + /* gcc-ABI: this canary MUST be at + offset 40!!! */ #endif - int irqcount; /* Irq nesting counter. Starts with -1 */ - int cpunumber; /* Logical CPU number */ - char *irqstackptr; /* top of irqstack */ + char *irqstackptr; int nodenumber; /* number of current node */ unsigned int __softirq_pending; unsigned int __nmi_count; /* number of NMI on this CPUs */ - int mmu_state; + short mmu_state; + short isidle; struct mm_struct *active_mm; unsigned apic_timer_irqs; } ____cacheline_aligned_in_smp; @@ -36,44 +40,69 @@ * There is no fast way to get the base address of the PDA, all the accesses * have to mention %fs/%gs. So it needs to be done this Torvaldian way. */ -#define sizeof_field(type,field) (sizeof(((type *)0)->field)) -#define typeof_field(type,field) typeof(((type *)0)->field) +extern void __bad_pda_field(void) __attribute__((noreturn)); -extern void __bad_pda_field(void); +/* + * proxy_pda doesn't actually exist, but tell gcc it is accessed for + * all PDA accesses so it gets read/write dependencies right. + */ +extern struct x8664_pda _proxy_pda; #define pda_offset(field) offsetof(struct x8664_pda, field) -#define pda_to_op(op,field,val) do { \ - typedef typeof_field(struct x8664_pda, field) T__; \ - switch (sizeof_field(struct x8664_pda, field)) { \ -case 2: \ -asm volatile(op "w %0,%%gs:%P1"::"ri" ((T__)val),"i"(pda_offset(field)):"memory"); break; \ -case 4: \ -asm volatile(op "l %0,%%gs:%P1"::"ri" ((T__)val),"i"(pda_offset(field)):"memory"); break; \ -case 8: \ -asm volatile(op "q %0,%%gs:%P1"::"ri" ((T__)val),"i"(pda_offset(field)):"memory"); break; \ - default: __bad_pda_field(); \ - } \ +#define pda_to_op(op,field,val) do { \ + typedef typeof(_proxy_pda.field) T__; \ + if (0) { T__ tmp__; tmp__ = (val); } /* type checking */ \ + switch (sizeof(_proxy_pda.field)) { \ + case 2: \ + asm(op "w %1,%%gs:%c2" : \ + "+m" (_proxy_pda.field) : \ + "ri" ((T__)val), \ + "i"(pda_offset(field))); \ + break; \ + case 4: \ + asm(op "l %1,%%gs:%c2" : \ + "+m" (_proxy_pda.field) : \ + "ri" ((T__)val), \ + "i" (pda_offset(field))); \ + break; \ + case 8: \ + asm(op "q %1,%%gs:%c2": \ + "+m" (_proxy_pda.field) : \ + "ri" ((T__)val), \ + "i"(pda_offset(field))); \ + break; \ + default: \ + __bad_pda_field(); \ + } \ } while (0) -/* - * AK: PDA read accesses should be neither volatile nor have an memory clobber. - * Unfortunately removing them causes all hell to break lose currently. - */ -#define pda_from_op(op,field) ({ \ - typeof_field(struct x8664_pda, field) ret__; \ - switch (sizeof_field(struct x8664_pda, field)) { \ -case 2: \ -asm volatile(op "w %%gs:%P1,%0":"=r" (ret__):"i"(pda_offset(field)):"memory"); break;\ -case 4: \ -asm volatile(op "l %%gs:%P1,%0":"=r" (ret__):"i"(pda_offset(field)):"memory"); break;\ -case 8: \ -asm volatile(op "q %%gs:%P1,%0":"=r" (ret__):"i"(pda_offset(field)):"memory"); break;\ - default: __bad_pda_field(); \ - } \ +#define pda_from_op(op,field) ({ \ + typeof(_proxy_pda.field) ret__; \ + switch (sizeof(_proxy_pda.field)) { \ + case 2: \ + asm(op "w %%gs:%c1,%0" : \ + "=r" (ret__) : \ + "i" (pda_offset(field)), \ + "m" (_proxy_pda.field)); \ + break; \ + case 4: \ + asm(op "l %%gs:%c1,%0": \ + "=r" (ret__): \ + "i" (pda_offset(field)), \ + "m" (_proxy_pda.field)); \ + break; \ + case 8: \ + asm(op "q %%gs:%c1,%0": \ + "=r" (ret__) : \ + "i" (pda_offset(field)), \ + "m" (_proxy_pda.field)); \ + break; \ + default: \ + __bad_pda_field(); \ + } \ ret__; }) - #define read_pda(field) pda_from_op("mov",field) #define write_pda(field,val) pda_to_op("mov",field,val) #define add_pda(field,val) pda_to_op("add",field,val)
diff --git a/include/asm-x86_64/percpu.h b/include/asm-x86_64/percpu.h index 08dd9f9..2857560 100644 --- a/include/asm-x86_64/percpu.h +++ b/include/asm-x86_64/percpu.h
@@ -11,6 +11,16 @@ #include <asm/pda.h> +#ifdef CONFIG_MODULES +# define PERCPU_MODULE_RESERVE 8192 +#else +# define PERCPU_MODULE_RESERVE 0 +#endif + +#define PERCPU_ENOUGH_ROOM \ + (ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES) + \ + PERCPU_MODULE_RESERVE) + #define __per_cpu_offset(cpu) (cpu_pda(cpu)->data_offset) #define __my_cpu_offset() read_pda(data_offset) @@ -21,9 +31,15 @@ __attribute__((__section__(".data.percpu"))) __typeof__(type) per_cpu__##name /* var is in discarded region: offset to particular copy we want */ -#define per_cpu(var, cpu) (*RELOC_HIDE(&per_cpu__##var, __per_cpu_offset(cpu))) -#define __get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __my_cpu_offset())) -#define __raw_get_cpu_var(var) (*RELOC_HIDE(&per_cpu__##var, __my_cpu_offset())) +#define per_cpu(var, cpu) (*({ \ + extern int simple_indentifier_##var(void); \ + RELOC_HIDE(&per_cpu__##var, __per_cpu_offset(cpu)); })) +#define __get_cpu_var(var) (*({ \ + extern int simple_indentifier_##var(void); \ + RELOC_HIDE(&per_cpu__##var, __my_cpu_offset()); })) +#define __raw_get_cpu_var(var) (*({ \ + extern int simple_indentifier_##var(void); \ + RELOC_HIDE(&per_cpu__##var, __my_cpu_offset()); })) /* A macro to avoid #include hell... */ #define percpu_modcopy(pcpudst, src, size) \
diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h index a31ab4e..6899e77 100644 --- a/include/asm-x86_64/pgtable.h +++ b/include/asm-x86_64/pgtable.h
@@ -21,12 +21,9 @@ #define swapper_pg_dir init_level4_pgt -extern int nonx_setup(char *str); extern void paging_init(void); extern void clear_kernel_mapping(unsigned long addr, unsigned long size); -extern unsigned long pgkern_mask; - /* * ZERO_PAGE is a global shared page that is always zero: used * for zero-mapped memory areas etc.. @@ -101,9 +98,6 @@ set_pgd(pgd, __pgd(0)); } -#define pud_page(pud) \ -((unsigned long) __va(pud_val(pud) & PHYSICAL_PAGE_MASK)) - #define ptep_get_and_clear(mm,addr,xp) __pte(xchg(&(xp)->pte, 0)) struct mm_struct; @@ -268,7 +262,7 @@ #define __LARGE_PTE (_PAGE_PSE|_PAGE_PRESENT) static inline int pte_user(pte_t pte) { return pte_val(pte) & _PAGE_USER; } static inline int pte_read(pte_t pte) { return pte_val(pte) & _PAGE_USER; } -static inline int pte_exec(pte_t pte) { return pte_val(pte) & _PAGE_USER; } +static inline int pte_exec(pte_t pte) { return !(pte_val(pte) & _PAGE_NX); } static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; } static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; } static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_RW; } @@ -281,11 +275,12 @@ static inline pte_t pte_mkold(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_ACCESSED)); return pte; } static inline pte_t pte_wrprotect(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_RW)); return pte; } static inline pte_t pte_mkread(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_USER)); return pte; } -static inline pte_t pte_mkexec(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_USER)); return pte; } +static inline pte_t pte_mkexec(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_NX)); return pte; } static inline pte_t pte_mkdirty(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_DIRTY)); return pte; } static inline pte_t pte_mkyoung(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_ACCESSED)); return pte; } static inline pte_t pte_mkwrite(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_RW)); return pte; } static inline pte_t pte_mkhuge(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) | _PAGE_PSE)); return pte; } +static inline pte_t pte_clrhuge(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_PSE)); return pte; } struct vm_area_struct; @@ -326,7 +321,8 @@ /* * Level 4 access. */ -#define pgd_page(pgd) ((unsigned long) __va((unsigned long)pgd_val(pgd) & PTE_MASK)) +#define pgd_page_vaddr(pgd) ((unsigned long) __va((unsigned long)pgd_val(pgd) & PTE_MASK)) +#define pgd_page(pgd) (pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT)) #define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) #define pgd_offset(mm, addr) ((mm)->pgd + pgd_index(addr)) #define pgd_offset_k(address) (init_level4_pgt + pgd_index(address)) @@ -335,16 +331,18 @@ /* PUD - Level3 access */ /* to find an entry in a page-table-directory. */ +#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PHYSICAL_PAGE_MASK)) +#define pud_page(pud) (pfn_to_page(pud_val(pud) >> PAGE_SHIFT)) #define pud_index(address) (((address) >> PUD_SHIFT) & (PTRS_PER_PUD-1)) -#define pud_offset(pgd, address) ((pud_t *) pgd_page(*(pgd)) + pud_index(address)) +#define pud_offset(pgd, address) ((pud_t *) pgd_page_vaddr(*(pgd)) + pud_index(address)) #define pud_present(pud) (pud_val(pud) & _PAGE_PRESENT) /* PMD - Level 2 access */ -#define pmd_page_kernel(pmd) ((unsigned long) __va(pmd_val(pmd) & PTE_MASK)) +#define pmd_page_vaddr(pmd) ((unsigned long) __va(pmd_val(pmd) & PTE_MASK)) #define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT)) #define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1)) -#define pmd_offset(dir, address) ((pmd_t *) pud_page(*(dir)) + \ +#define pmd_offset(dir, address) ((pmd_t *) pud_page_vaddr(*(dir)) + \ pmd_index(address)) #define pmd_none(x) (!pmd_val(x)) #define pmd_present(x) (pmd_val(x) & _PAGE_PRESENT) @@ -382,7 +380,7 @@ #define pte_index(address) \ (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) -#define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_kernel(*(dir)) + \ +#define pte_offset_kernel(dir, address) ((pte_t *) pmd_page_vaddr(*(dir)) + \ pte_index(address)) /* x86-64 always has all page tables mapped. */
diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h index 038fe1f4..c28fc2d 100644 --- a/include/asm-x86_64/proto.h +++ b/include/asm-x86_64/proto.h
@@ -24,8 +24,6 @@ #define mtrr_bp_init() do {} while (0) #endif extern void init_memory_mapping(unsigned long start, unsigned long end); -extern void size_zones(unsigned long *z, unsigned long *h, - unsigned long start_pfn, unsigned long end_pfn); extern void system_call(void); extern int kernel_syscall(void); @@ -51,10 +49,8 @@ extern int sysctl_vsyscall; extern int nohpet; extern unsigned long vxtime_hz; +extern void time_init_gtod(void); -extern int numa_setup(char *opt); - -extern int setup_early_printk(char *); extern void early_printk(const char *fmt, ...) __attribute__((format(printf,1,2))); extern void early_identify_cpu(struct cpuinfo_x86 *c); @@ -91,7 +87,7 @@ extern void setup_node_bootmem(int nodeid, unsigned long start, unsigned long end); -extern void check_ioapic(void); +extern void early_quirks(void); extern void check_efer(void); extern int unhandled_signal(struct task_struct *tsk, int sig); @@ -103,13 +99,7 @@ extern unsigned long table_start, table_end; extern int exception_trace; -extern int using_apic_timer; -extern int disable_apic; extern unsigned cpu_khz; -extern int ioapic_force; -extern int skip_ioapic_setup; -extern int acpi_ht; -extern int acpi_disabled; extern void no_iommu_init(void); extern int force_iommu, no_iommu; @@ -131,7 +121,8 @@ extern int reboot_force; extern int notsc_setup(char *); -extern int setup_additional_cpus(char *); + +extern int gsi_irq_sharing(int gsi); extern void smp_local_timer_interrupt(struct pt_regs * regs);
diff --git a/include/asm-x86_64/ptrace-abi.h b/include/asm-x86_64/ptrace-abi.h new file mode 100644 index 0000000..19184b0 --- /dev/null +++ b/include/asm-x86_64/ptrace-abi.h
@@ -0,0 +1,51 @@ +#ifndef _X86_64_PTRACE_ABI_H +#define _X86_64_PTRACE_ABI_H + +#if defined(__ASSEMBLY__) || defined(__FRAME_OFFSETS) +#define R15 0 +#define R14 8 +#define R13 16 +#define R12 24 +#define RBP 32 +#define RBX 40 +/* arguments: interrupts/non tracing syscalls only save upto here*/ +#define R11 48 +#define R10 56 +#define R9 64 +#define R8 72 +#define RAX 80 +#define RCX 88 +#define RDX 96 +#define RSI 104 +#define RDI 112 +#define ORIG_RAX 120 /* = ERROR */ +/* end of arguments */ +/* cpu exception frame or undefined in case of fast syscall. */ +#define RIP 128 +#define CS 136 +#define EFLAGS 144 +#define RSP 152 +#define SS 160 +#define ARGOFFSET R11 +#endif /* __ASSEMBLY__ */ + +/* top of stack page */ +#define FRAME_SIZE 168 + +#define PTRACE_OLDSETOPTIONS 21 + +/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ +#define PTRACE_GETREGS 12 +#define PTRACE_SETREGS 13 +#define PTRACE_GETFPREGS 14 +#define PTRACE_SETFPREGS 15 +#define PTRACE_GETFPXREGS 18 +#define PTRACE_SETFPXREGS 19 + +/* only useful for access 32bit programs */ +#define PTRACE_GET_THREAD_AREA 25 +#define PTRACE_SET_THREAD_AREA 26 + +#define PTRACE_ARCH_PRCTL 30 /* arch_prctl for child */ + +#endif
diff --git a/include/asm-x86_64/ptrace.h b/include/asm-x86_64/ptrace.h index ca6f15f..ab827dc 100644 --- a/include/asm-x86_64/ptrace.h +++ b/include/asm-x86_64/ptrace.h
@@ -1,40 +1,9 @@ #ifndef _X86_64_PTRACE_H #define _X86_64_PTRACE_H -#if defined(__ASSEMBLY__) || defined(__FRAME_OFFSETS) -#define R15 0 -#define R14 8 -#define R13 16 -#define R12 24 -#define RBP 32 -#define RBX 40 -/* arguments: interrupts/non tracing syscalls only save upto here*/ -#define R11 48 -#define R10 56 -#define R9 64 -#define R8 72 -#define RAX 80 -#define RCX 88 -#define RDX 96 -#define RSI 104 -#define RDI 112 -#define ORIG_RAX 120 /* = ERROR */ -/* end of arguments */ -/* cpu exception frame or undefined in case of fast syscall. */ -#define RIP 128 -#define CS 136 -#define EFLAGS 144 -#define RSP 152 -#define SS 160 -#define ARGOFFSET R11 -#endif /* __ASSEMBLY__ */ +#include <asm/ptrace-abi.h> -/* top of stack page */ -#define FRAME_SIZE 168 - -#define PTRACE_OLDSETOPTIONS 21 - -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLY__ struct pt_regs { unsigned long r15; @@ -45,7 +14,7 @@ unsigned long rbx; /* arguments: non interrupts/non tracing syscalls only save upto here*/ unsigned long r11; - unsigned long r10; + unsigned long r10; unsigned long r9; unsigned long r8; unsigned long rax; @@ -54,32 +23,18 @@ unsigned long rsi; unsigned long rdi; unsigned long orig_rax; -/* end of arguments */ +/* end of arguments */ /* cpu exception frame or undefined */ unsigned long rip; unsigned long cs; - unsigned long eflags; - unsigned long rsp; + unsigned long eflags; + unsigned long rsp; unsigned long ss; -/* top of stack page */ +/* top of stack page */ }; #endif -/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ -#define PTRACE_GETREGS 12 -#define PTRACE_SETREGS 13 -#define PTRACE_GETFPREGS 14 -#define PTRACE_SETFPREGS 15 -#define PTRACE_GETFPXREGS 18 -#define PTRACE_SETFPXREGS 19 - -/* only useful for access 32bit programs */ -#define PTRACE_GET_THREAD_AREA 25 -#define PTRACE_SET_THREAD_AREA 26 - -#define PTRACE_ARCH_PRCTL 30 /* arch_prctl for child */ - #if defined(__KERNEL__) && !defined(__ASSEMBLY__) #define user_mode(regs) (!!((regs)->cs & 3)) #define user_mode_vm(regs) user_mode(regs)
diff --git a/include/asm-x86_64/rwlock.h b/include/asm-x86_64/rwlock.h index dea0e94..72aeebe 100644 --- a/include/asm-x86_64/rwlock.h +++ b/include/asm-x86_64/rwlock.h
@@ -18,69 +18,9 @@ #ifndef _ASM_X86_64_RWLOCK_H #define _ASM_X86_64_RWLOCK_H -#include <linux/stringify.h> - #define RW_LOCK_BIAS 0x01000000 -#define RW_LOCK_BIAS_STR "0x01000000" +#define RW_LOCK_BIAS_STR "0x01000000" -#define __build_read_lock_ptr(rw, helper) \ - asm volatile(LOCK_PREFIX "subl $1,(%0)\n\t" \ - "js 2f\n" \ - "1:\n" \ - LOCK_SECTION_START("") \ - "2:\tcall " helper "\n\t" \ - "jmp 1b\n" \ - LOCK_SECTION_END \ - ::"a" (rw) : "memory") - -#define __build_read_lock_const(rw, helper) \ - asm volatile(LOCK_PREFIX "subl $1,%0\n\t" \ - "js 2f\n" \ - "1:\n" \ - LOCK_SECTION_START("") \ - "2:\tpushq %%rax\n\t" \ - "leaq %0,%%rax\n\t" \ - "call " helper "\n\t" \ - "popq %%rax\n\t" \ - "jmp 1b\n" \ - LOCK_SECTION_END \ - :"=m" (*((volatile int *)rw))::"memory") - -#define __build_read_lock(rw, helper) do { \ - if (__builtin_constant_p(rw)) \ - __build_read_lock_const(rw, helper); \ - else \ - __build_read_lock_ptr(rw, helper); \ - } while (0) - -#define __build_write_lock_ptr(rw, helper) \ - asm volatile(LOCK_PREFIX "subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \ - "jnz 2f\n" \ - "1:\n" \ - LOCK_SECTION_START("") \ - "2:\tcall " helper "\n\t" \ - "jmp 1b\n" \ - LOCK_SECTION_END \ - ::"a" (rw) : "memory") - -#define __build_write_lock_const(rw, helper) \ - asm volatile(LOCK_PREFIX "subl $" RW_LOCK_BIAS_STR ",%0\n\t" \ - "jnz 2f\n" \ - "1:\n" \ - LOCK_SECTION_START("") \ - "2:\tpushq %%rax\n\t" \ - "leaq %0,%%rax\n\t" \ - "call " helper "\n\t" \ - "popq %%rax\n\t" \ - "jmp 1b\n" \ - LOCK_SECTION_END \ - :"=m" (*((volatile long *)rw))::"memory") - -#define __build_write_lock(rw, helper) do { \ - if (__builtin_constant_p(rw)) \ - __build_write_lock_const(rw, helper); \ - else \ - __build_write_lock_ptr(rw, helper); \ - } while (0) +/* Actual code is in asm/spinlock.h or in arch/x86_64/lib/rwlock.S */ #endif
diff --git a/include/asm-x86_64/segment.h b/include/asm-x86_64/segment.h index d4bed33..334ddcd 100644 --- a/include/asm-x86_64/segment.h +++ b/include/asm-x86_64/segment.h
@@ -20,15 +20,16 @@ #define __USER_CS 0x33 /* 6*8+3 */ #define __USER32_DS __USER_DS -#define GDT_ENTRY_TLS 1 #define GDT_ENTRY_TSS 8 /* needs two entries */ #define GDT_ENTRY_LDT 10 /* needs two entries */ #define GDT_ENTRY_TLS_MIN 12 #define GDT_ENTRY_TLS_MAX 14 -/* 15 free */ #define GDT_ENTRY_TLS_ENTRIES 3 +#define GDT_ENTRY_PER_CPU 15 /* Abused to load per CPU data from limit */ +#define __PER_CPU_SEG (GDT_ENTRY_PER_CPU * 8 + 3) + /* TLS indexes for 64bit - hardcoded in arch_prctl */ #define FS_TLS 0 #define GS_TLS 1
diff --git a/include/asm-x86_64/semaphore.h b/include/asm-x86_64/semaphore.h index 064df08..107bd90 100644 --- a/include/asm-x86_64/semaphore.h +++ b/include/asm-x86_64/semaphore.h
@@ -107,12 +107,9 @@ __asm__ __volatile__( "# atomic down operation\n\t" LOCK_PREFIX "decl %0\n\t" /* --sem->count */ - "js 2f\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tcall __down_failed\n\t" - "jmp 1b\n" - LOCK_SECTION_END + "jns 1f\n\t" + "call __down_failed\n" + "1:" :"=m" (sem->count) :"D" (sem) :"memory"); @@ -130,14 +127,11 @@ __asm__ __volatile__( "# atomic interruptible down operation\n\t" + "xorl %0,%0\n\t" LOCK_PREFIX "decl %1\n\t" /* --sem->count */ - "js 2f\n\t" - "xorl %0,%0\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tcall __down_failed_interruptible\n\t" - "jmp 1b\n" - LOCK_SECTION_END + "jns 2f\n\t" + "call __down_failed_interruptible\n" + "2:\n" :"=a" (result), "=m" (sem->count) :"D" (sem) :"memory"); @@ -154,14 +148,11 @@ __asm__ __volatile__( "# atomic interruptible down operation\n\t" + "xorl %0,%0\n\t" LOCK_PREFIX "decl %1\n\t" /* --sem->count */ - "js 2f\n\t" - "xorl %0,%0\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tcall __down_failed_trylock\n\t" - "jmp 1b\n" - LOCK_SECTION_END + "jns 2f\n\t" + "call __down_failed_trylock\n\t" + "2:\n" :"=a" (result), "=m" (sem->count) :"D" (sem) :"memory","cc"); @@ -179,12 +170,9 @@ __asm__ __volatile__( "# atomic up operation\n\t" LOCK_PREFIX "incl %0\n\t" /* ++sem->count */ - "jle 2f\n" - "1:\n" - LOCK_SECTION_START("") - "2:\tcall __up_wakeup\n\t" - "jmp 1b\n" - LOCK_SECTION_END + "jg 1f\n\t" + "call __up_wakeup\n" + "1:" :"=m" (sem->count) :"D" (sem) :"memory");
diff --git a/include/asm-x86_64/signal.h b/include/asm-x86_64/signal.h index 3ede2a6..4581f97 100644 --- a/include/asm-x86_64/signal.h +++ b/include/asm-x86_64/signal.h
@@ -24,10 +24,6 @@ } sigset_t; -struct pt_regs; -asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset); - - #else /* Here we must cater to libcs that poke about in kernel headers. */
diff --git a/include/asm-x86_64/smp.h b/include/asm-x86_64/smp.h index 6805e1f..d6b7c05 100644 --- a/include/asm-x86_64/smp.h +++ b/include/asm-x86_64/smp.h
@@ -4,27 +4,18 @@ /* * We need the APIC definitions automatically as part of 'smp.h' */ -#ifndef __ASSEMBLY__ #include <linux/threads.h> #include <linux/cpumask.h> #include <linux/bitops.h> extern int disable_apic; -#endif -#ifdef CONFIG_X86_LOCAL_APIC -#ifndef __ASSEMBLY__ #include <asm/fixmap.h> #include <asm/mpspec.h> -#ifdef CONFIG_X86_IO_APIC #include <asm/io_apic.h> -#endif #include <asm/apic.h> #include <asm/thread_info.h> -#endif -#endif #ifdef CONFIG_SMP -#ifndef ASSEMBLY #include <asm/pda.h> @@ -42,14 +33,11 @@ extern void smp_alloc_memory(void); extern volatile unsigned long smp_invalidate_needed; -extern int pic_mode; extern void lock_ipi_call_lock(void); extern void unlock_ipi_call_lock(void); extern int smp_num_siblings; extern void smp_send_reschedule(int cpu); void smp_stop_cpu(void); -extern int smp_call_function_single(int cpuid, void (*func) (void *info), - void *info, int retry, int wait); extern cpumask_t cpu_sibling_map[NR_CPUS]; extern cpumask_t cpu_core_map[NR_CPUS]; @@ -76,20 +64,16 @@ return GET_APIC_ID(*(unsigned int *)(APIC_BASE+APIC_ID)); } -extern int safe_smp_processor_id(void); extern int __cpu_disable(void); extern void __cpu_die(unsigned int cpu); extern void prefill_possible_map(void); extern unsigned num_processors; extern unsigned disabled_cpus; -#endif /* !ASSEMBLY */ - #define NO_PROC_ID 0xFF /* No processor magic marker */ #endif -#ifndef ASSEMBLY /* * Some lowlevel functions might want to know about * the real APIC ID <-> CPU # mapping. @@ -111,11 +95,8 @@ return BAD_APICID; } -#endif /* !ASSEMBLY */ - #ifndef CONFIG_SMP #define stack_smp_processor_id() 0 -#define safe_smp_processor_id() 0 #define cpu_logical_map(x) (x) #else #include <asm/thread_info.h> @@ -127,19 +108,23 @@ }) #endif -#ifndef __ASSEMBLY__ static __inline int logical_smp_processor_id(void) { /* we don't want to mark this access volatile - bad code generation */ return GET_APIC_LOGICAL_ID(*(unsigned long *)(APIC_BASE+APIC_LDR)); } -#endif #ifdef CONFIG_SMP #define cpu_physical_id(cpu) x86_cpu_to_apicid[cpu] #else #define cpu_physical_id(cpu) boot_cpu_id -#endif - +static inline int smp_call_function_single(int cpuid, void (*func) (void *info), + void *info, int retry, int wait) +{ + /* Disable interrupts here? */ + func(info); + return 0; +} +#endif /* !CONFIG_SMP */ #endif
diff --git a/include/asm-x86_64/spinlock.h b/include/asm-x86_64/spinlock.h index 248a79f..3daf5b0 100644 --- a/include/asm-x86_64/spinlock.h +++ b/include/asm-x86_64/spinlock.h
@@ -4,6 +4,7 @@ #include <asm/atomic.h> #include <asm/rwlock.h> #include <asm/page.h> +#include <asm/processor.h> /* * Your basic SMP spinlocks, allowing only a single CPU anywhere @@ -16,31 +17,23 @@ * (the type definitions are in asm/spinlock_types.h) */ -#define __raw_spin_is_locked(x) \ - (*(volatile signed int *)(&(x)->slock) <= 0) - -#define __raw_spin_lock_string \ - "\n1:\t" \ - LOCK_PREFIX " ; decl %0\n\t" \ - "js 2f\n" \ - LOCK_SECTION_START("") \ - "2:\t" \ - "rep;nop\n\t" \ - "cmpl $0,%0\n\t" \ - "jle 2b\n\t" \ - "jmp 1b\n" \ - LOCK_SECTION_END - -#define __raw_spin_lock_string_up \ - "\n\tdecl %0" - -#define __raw_spin_unlock_string \ - "movl $1,%0" \ - :"=m" (lock->slock) : : "memory" +static inline int __raw_spin_is_locked(raw_spinlock_t *lock) +{ + return *(volatile signed int *)(&(lock)->slock) <= 0; +} static inline void __raw_spin_lock(raw_spinlock_t *lock) { - asm volatile(__raw_spin_lock_string : "=m" (lock->slock) : : "memory"); + asm volatile( + "\n1:\t" + LOCK_PREFIX " ; decl %0\n\t" + "jns 2f\n" + "3:\n" + "rep;nop\n\t" + "cmpl $0,%0\n\t" + "jle 3b\n\t" + "jmp 1b\n" + "2:\t" : "=m" (lock->slock) : : "memory"); } #define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) @@ -49,7 +42,7 @@ { int oldval; - __asm__ __volatile__( + asm volatile( "xchgl %0,%1" :"=q" (oldval), "=m" (lock->slock) :"0" (0) : "memory"); @@ -59,13 +52,14 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock) { - __asm__ __volatile__( - __raw_spin_unlock_string - ); + asm volatile("movl $1,%0" :"=m" (lock->slock) :: "memory"); } -#define __raw_spin_unlock_wait(lock) \ - do { while (__raw_spin_is_locked(lock)) cpu_relax(); } while (0) +static inline void __raw_spin_unlock_wait(raw_spinlock_t *lock) +{ + while (__raw_spin_is_locked(lock)) + cpu_relax(); +} /* * Read-write spinlocks, allowing multiple readers @@ -79,26 +73,34 @@ * * On x86, we implement read-write locks as a 32-bit counter * with the high bit (sign) being the "contended" bit. - * - * The inline assembly is non-obvious. Think about it. - * - * Changed to use the same technique as rw semaphores. See - * semaphore.h for details. -ben - * - * the helpers are in arch/i386/kernel/semaphore.c */ -#define __raw_read_can_lock(x) ((int)(x)->lock > 0) -#define __raw_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS) +static inline int __raw_read_can_lock(raw_rwlock_t *lock) +{ + return (int)(lock)->lock > 0; +} + +static inline int __raw_write_can_lock(raw_rwlock_t *lock) +{ + return (lock)->lock == RW_LOCK_BIAS; +} static inline void __raw_read_lock(raw_rwlock_t *rw) { - __build_read_lock(rw, "__read_lock_failed"); + asm volatile(LOCK_PREFIX "subl $1,(%0)\n\t" + "jns 1f\n" + "call __read_lock_failed\n" + "1:\n" + ::"D" (rw), "i" (RW_LOCK_BIAS) : "memory"); } static inline void __raw_write_lock(raw_rwlock_t *rw) { - __build_write_lock(rw, "__write_lock_failed"); + asm volatile(LOCK_PREFIX "subl %1,(%0)\n\t" + "jz 1f\n" + "\tcall __write_lock_failed\n\t" + "1:\n" + ::"D" (rw), "i" (RW_LOCK_BIAS) : "memory"); } static inline int __raw_read_trylock(raw_rwlock_t *lock)
diff --git a/include/asm-x86_64/stacktrace.h b/include/asm-x86_64/stacktrace.h new file mode 100644 index 0000000..5eb9799 --- /dev/null +++ b/include/asm-x86_64/stacktrace.h
@@ -0,0 +1,18 @@ +#ifndef _ASM_STACKTRACE_H +#define _ASM_STACKTRACE_H 1 + +/* Generic stack tracer with callbacks */ + +struct stacktrace_ops { + void (*warning)(void *data, char *msg); + /* msg must contain %s for the symbol */ + void (*warning_symbol)(void *data, char *msg, unsigned long symbol); + void (*address)(void *data, unsigned long address); + /* On negative return stop dumping */ + int (*stack)(void *data, char *name); +}; + +void dump_trace(struct task_struct *tsk, struct pt_regs *regs, unsigned long *stack, + struct stacktrace_ops *ops, void *data); + +#endif
diff --git a/include/asm-x86_64/system.h b/include/asm-x86_64/system.h index 6bf170b..bd376bc 100644 --- a/include/asm-x86_64/system.h +++ b/include/asm-x86_64/system.h
@@ -14,12 +14,13 @@ #define __RESTORE(reg,offset) "movq (14-" #offset ")*8(%%rsp),%%" #reg "\n\t" /* frame pointer must be last for get_wchan */ -#define SAVE_CONTEXT "pushq %%rbp ; movq %%rsi,%%rbp\n\t" -#define RESTORE_CONTEXT "movq %%rbp,%%rsi ; popq %%rbp\n\t" +#define SAVE_CONTEXT "pushf ; pushq %%rbp ; movq %%rsi,%%rbp\n\t" +#define RESTORE_CONTEXT "movq %%rbp,%%rsi ; popq %%rbp ; popf\t" #define __EXTRA_CLOBBER \ ,"rcx","rbx","rdx","r8","r9","r10","r11","r12","r13","r14","r15" +/* Save restore flags to clear handle leaking NT */ #define switch_to(prev,next,last) \ asm volatile(SAVE_CONTEXT \ "movq %%rsp,%P[threadrsp](%[prev])\n\t" /* save RSP */ \
diff --git a/include/asm-x86_64/tce.h b/include/asm-x86_64/tce.h index 53e9a68..dbb047f 100644 --- a/include/asm-x86_64/tce.h +++ b/include/asm-x86_64/tce.h
@@ -24,7 +24,6 @@ #ifndef _ASM_X86_64_TCE_H #define _ASM_X86_64_TCE_H -extern void* tce_table_kva[]; extern unsigned int specified_table_size; struct iommu_table;
diff --git a/include/asm-x86_64/therm_throt.h b/include/asm-x86_64/therm_throt.h new file mode 100644 index 0000000..5aac059 --- /dev/null +++ b/include/asm-x86_64/therm_throt.h
@@ -0,0 +1 @@ +#include <asm-i386/therm_throt.h>
diff --git a/include/asm-x86_64/thread_info.h b/include/asm-x86_64/thread_info.h index 2029b00..787a081 100644 --- a/include/asm-x86_64/thread_info.h +++ b/include/asm-x86_64/thread_info.h
@@ -114,11 +114,14 @@ #define TIF_IRET 5 /* force IRET */ #define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */ #define TIF_SECCOMP 8 /* secure computing */ +#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in do_signal */ /* 16 free */ #define TIF_IA32 17 /* 32bit process */ #define TIF_FORK 18 /* ret_from_fork */ #define TIF_ABI_PENDING 19 #define TIF_MEMDIE 20 +#define TIF_DEBUG 21 /* uses debug registers */ +#define TIF_IO_BITMAP 22 /* uses I/O bitmap */ #define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE) #define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME) @@ -128,9 +131,12 @@ #define _TIF_IRET (1<<TIF_IRET) #define _TIF_SYSCALL_AUDIT (1<<TIF_SYSCALL_AUDIT) #define _TIF_SECCOMP (1<<TIF_SECCOMP) +#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK) #define _TIF_IA32 (1<<TIF_IA32) #define _TIF_FORK (1<<TIF_FORK) #define _TIF_ABI_PENDING (1<<TIF_ABI_PENDING) +#define _TIF_DEBUG (1<<TIF_DEBUG) +#define _TIF_IO_BITMAP (1<<TIF_IO_BITMAP) /* work to do on interrupt/exception return */ #define _TIF_WORK_MASK \ @@ -138,6 +144,9 @@ /* work to do on any return to user space */ #define _TIF_ALLWORK_MASK (0x0000FFFF & ~_TIF_SECCOMP) +/* flags to check in __switch_to() */ +#define _TIF_WORK_CTXSW (_TIF_DEBUG|_TIF_IO_BITMAP) + #define PREEMPT_ACTIVE 0x10000000 /*
diff --git a/include/asm-x86_64/tlbflush.h b/include/asm-x86_64/tlbflush.h index d16d5b6..983bd29 100644 --- a/include/asm-x86_64/tlbflush.h +++ b/include/asm-x86_64/tlbflush.h
@@ -4,44 +4,44 @@ #include <linux/mm.h> #include <asm/processor.h> -#define __flush_tlb() \ - do { \ - unsigned long tmpreg; \ - \ - __asm__ __volatile__( \ - "movq %%cr3, %0; # flush TLB \n" \ - "movq %0, %%cr3; \n" \ - : "=r" (tmpreg) \ - :: "memory"); \ - } while (0) +static inline unsigned long get_cr3(void) +{ + unsigned long cr3; + asm volatile("mov %%cr3,%0" : "=r" (cr3)); + return cr3; +} -/* - * Global pages have to be flushed a bit differently. Not a real - * performance problem because this does not happen often. - */ -#define __flush_tlb_global() \ - do { \ - unsigned long tmpreg, cr4, cr4_orig; \ - \ - __asm__ __volatile__( \ - "movq %%cr4, %2; # turn off PGE \n" \ - "movq %2, %1; \n" \ - "andq %3, %1; \n" \ - "movq %1, %%cr4; \n" \ - "movq %%cr3, %0; # flush TLB \n" \ - "movq %0, %%cr3; \n" \ - "movq %2, %%cr4; # turn PGE back on \n" \ - : "=&r" (tmpreg), "=&r" (cr4), "=&r" (cr4_orig) \ - : "i" (~X86_CR4_PGE) \ - : "memory"); \ - } while (0) +static inline void set_cr3(unsigned long cr3) +{ + asm volatile("mov %0,%%cr3" :: "r" (cr3) : "memory"); +} -extern unsigned long pgkern_mask; +static inline void __flush_tlb(void) +{ + set_cr3(get_cr3()); +} -#define __flush_tlb_all() __flush_tlb_global() +static inline unsigned long get_cr4(void) +{ + unsigned long cr4; + asm volatile("mov %%cr4,%0" : "=r" (cr4)); + return cr4; +} + +static inline void set_cr4(unsigned long cr4) +{ + asm volatile("mov %0,%%cr4" :: "r" (cr4) : "memory"); +} + +static inline void __flush_tlb_all(void) +{ + unsigned long cr4 = get_cr4(); + set_cr4(cr4 & ~X86_CR4_PGE); /* clear PGE */ + set_cr4(cr4); /* write old PGE again and flush TLBs */ +} #define __flush_tlb_one(addr) \ - __asm__ __volatile__("invlpg %0": :"m" (*(char *) addr)) + __asm__ __volatile__("invlpg (%0)" :: "r" (addr) : "memory") /*
diff --git a/include/asm-x86_64/uaccess.h b/include/asm-x86_64/uaccess.h index 1e1fa00..e856570 100644 --- a/include/asm-x86_64/uaccess.h +++ b/include/asm-x86_64/uaccess.h
@@ -84,7 +84,7 @@ */ #define __get_user_x(size,ret,x,ptr) \ - __asm__ __volatile__("call __get_user_" #size \ + asm volatile("call __get_user_" #size \ :"=a" (ret),"=d" (x) \ :"c" (ptr) \ :"r8") @@ -101,7 +101,7 @@ case 8: __get_user_x(8,__ret_gu,__val_gu,ptr); break; \ default: __get_user_bad(); break; \ } \ - (x) = (__typeof__(*(ptr)))__val_gu; \ + (x) = (typeof(*(ptr)))__val_gu; \ __ret_gu; \ }) @@ -112,7 +112,7 @@ extern void __put_user_bad(void); #define __put_user_x(size,ret,x,ptr) \ - __asm__ __volatile__("call __put_user_" #size \ + asm volatile("call __put_user_" #size \ :"=a" (ret) \ :"c" (ptr),"d" (x) \ :"r8") @@ -139,7 +139,7 @@ #define __put_user_check(x,ptr,size) \ ({ \ int __pu_err; \ - __typeof__(*(ptr)) __user *__pu_addr = (ptr); \ + typeof(*(ptr)) __user *__pu_addr = (ptr); \ switch (size) { \ case 1: __put_user_x(1,__pu_err,x,__pu_addr); break; \ case 2: __put_user_x(2,__pu_err,x,__pu_addr); break; \ @@ -173,7 +173,7 @@ * aliasing issues. */ #define __put_user_asm(x, addr, err, itype, rtype, ltype, errno) \ - __asm__ __volatile__( \ + asm volatile( \ "1: mov"itype" %"rtype"1,%2\n" \ "2:\n" \ ".section .fixup,\"ax\"\n" \ @@ -193,7 +193,7 @@ int __gu_err; \ unsigned long __gu_val; \ __get_user_size(__gu_val,(ptr),(size),__gu_err); \ - (x) = (__typeof__(*(ptr)))__gu_val; \ + (x) = (typeof(*(ptr)))__gu_val; \ __gu_err; \ }) @@ -217,7 +217,7 @@ } while (0) #define __get_user_asm(x, addr, err, itype, rtype, ltype, errno) \ - __asm__ __volatile__( \ + asm volatile( \ "1: mov"itype" %2,%"rtype"1\n" \ "2:\n" \ ".section .fixup,\"ax\"\n" \ @@ -237,15 +237,20 @@ */ /* Handles exceptions in both to and from, but doesn't do access_ok */ -extern unsigned long copy_user_generic(void *to, const void *from, unsigned len); +__must_check unsigned long +copy_user_generic(void *to, const void *from, unsigned len); -extern unsigned long copy_to_user(void __user *to, const void *from, unsigned len); -extern unsigned long copy_from_user(void *to, const void __user *from, unsigned len); -extern unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len); +__must_check unsigned long +copy_to_user(void __user *to, const void *from, unsigned len); +__must_check unsigned long +copy_from_user(void *to, const void __user *from, unsigned len); +__must_check unsigned long +copy_in_user(void __user *to, const void __user *from, unsigned len); -static __always_inline int __copy_from_user(void *dst, const void __user *src, unsigned size) +static __always_inline __must_check +int __copy_from_user(void *dst, const void __user *src, unsigned size) { - int ret = 0; + int ret = 0; if (!__builtin_constant_p(size)) return copy_user_generic(dst,(__force void *)src,size); switch (size) { @@ -272,9 +277,10 @@ } } -static __always_inline int __copy_to_user(void __user *dst, const void *src, unsigned size) +static __always_inline __must_check +int __copy_to_user(void __user *dst, const void *src, unsigned size) { - int ret = 0; + int ret = 0; if (!__builtin_constant_p(size)) return copy_user_generic((__force void *)dst,src,size); switch (size) { @@ -303,10 +309,10 @@ } } - -static __always_inline int __copy_in_user(void __user *dst, const void __user *src, unsigned size) +static __always_inline __must_check +int __copy_in_user(void __user *dst, const void __user *src, unsigned size) { - int ret = 0; + int ret = 0; if (!__builtin_constant_p(size)) return copy_user_generic((__force void *)dst,(__force void *)src,size); switch (size) { @@ -344,15 +350,17 @@ } } -long strncpy_from_user(char *dst, const char __user *src, long count); -long __strncpy_from_user(char *dst, const char __user *src, long count); -long strnlen_user(const char __user *str, long n); -long __strnlen_user(const char __user *str, long n); -long strlen_user(const char __user *str); -unsigned long clear_user(void __user *mem, unsigned long len); -unsigned long __clear_user(void __user *mem, unsigned long len); +__must_check long +strncpy_from_user(char *dst, const char __user *src, long count); +__must_check long +__strncpy_from_user(char *dst, const char __user *src, long count); +__must_check long strnlen_user(const char __user *str, long n); +__must_check long __strnlen_user(const char __user *str, long n); +__must_check long strlen_user(const char __user *str); +__must_check unsigned long clear_user(void __user *mem, unsigned long len); +__must_check unsigned long __clear_user(void __user *mem, unsigned long len); -#define __copy_to_user_inatomic __copy_to_user -#define __copy_from_user_inatomic __copy_from_user +__must_check long __copy_from_user_inatomic(void *dst, const void __user *src, unsigned size); +#define __copy_to_user_inatomic copy_user_generic #endif /* __X86_64_UACCESS_H */
diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h index 80fd48e..6137146 100644 --- a/include/asm-x86_64/unistd.h +++ b/include/asm-x86_64/unistd.h
@@ -600,9 +600,9 @@ #define __NR_faccessat 269 __SYSCALL(__NR_faccessat, sys_faccessat) #define __NR_pselect6 270 -__SYSCALL(__NR_pselect6, sys_ni_syscall) /* for now */ +__SYSCALL(__NR_pselect6, sys_pselect6) #define __NR_ppoll 271 -__SYSCALL(__NR_ppoll, sys_ni_syscall) /* for now */ +__SYSCALL(__NR_ppoll, sys_ppoll) #define __NR_unshare 272 __SYSCALL(__NR_unshare, sys_unshare) #define __NR_set_robust_list 273 @@ -623,16 +623,17 @@ #ifdef __KERNEL__ #define __NR_syscall_max __NR_move_pages +#include <linux/err.h> #ifndef __NO_STUBS -/* user-visible error numbers are in the range -1 - -4095 */ +/* user-visible error numbers are in the range -1 - -MAX_ERRNO */ #define __syscall_clobber "r11","rcx","memory" #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-127)) { \ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ errno = -(res); \ res = -1; \ } \ @@ -658,6 +659,7 @@ #define __ARCH_WANT_SYS_SIGPENDING #define __ARCH_WANT_SYS_SIGPROCMASK #define __ARCH_WANT_SYS_RT_SIGACTION +#define __ARCH_WANT_SYS_RT_SIGSUSPEND #define __ARCH_WANT_SYS_TIME #define __ARCH_WANT_COMPAT_SYS_TIME
diff --git a/include/asm-x86_64/unwind.h b/include/asm-x86_64/unwind.h index 1f6e9bf..2e7ff10 100644 --- a/include/asm-x86_64/unwind.h +++ b/include/asm-x86_64/unwind.h
@@ -18,6 +18,7 @@ { struct pt_regs regs; struct task_struct *task; + unsigned call_frame:1; }; #define UNW_PC(frame) (frame)->regs.rip @@ -57,6 +58,10 @@ PTREGS_INFO(r15), \ PTREGS_INFO(rip) +#define UNW_DEFAULT_RA(raItem, dataAlign) \ + ((raItem).where == Memory && \ + !((raItem).value * (dataAlign) + 8)) + static inline void arch_unw_init_frame_info(struct unwind_frame_info *info, /*const*/ struct pt_regs *regs) { @@ -94,8 +99,8 @@ #else -#define UNW_PC(frame) ((void)(frame), 0) -#define UNW_SP(frame) ((void)(frame), 0) +#define UNW_PC(frame) ((void)(frame), 0UL) +#define UNW_SP(frame) ((void)(frame), 0UL) static inline int arch_unw_user_mode(const void *info) {
diff --git a/include/asm-x86_64/vsyscall.h b/include/asm-x86_64/vsyscall.h index 146b244..2281e93 100644 --- a/include/asm-x86_64/vsyscall.h +++ b/include/asm-x86_64/vsyscall.h
@@ -4,6 +4,7 @@ enum vsyscall_num { __NR_vgettimeofday, __NR_vtime, + __NR_vgetcpu, }; #define VSYSCALL_START (-10UL << 20) @@ -15,6 +16,7 @@ #include <linux/seqlock.h> #define __section_vxtime __attribute__ ((unused, __section__ (".vxtime"), aligned(16))) +#define __section_vgetcpu_mode __attribute__ ((unused, __section__ (".vgetcpu_mode"), aligned(16))) #define __section_wall_jiffies __attribute__ ((unused, __section__ (".wall_jiffies"), aligned(16))) #define __section_jiffies __attribute__ ((unused, __section__ (".jiffies"), aligned(16))) #define __section_sys_tz __attribute__ ((unused, __section__ (".sys_tz"), aligned(16))) @@ -26,6 +28,9 @@ #define VXTIME_HPET 2 #define VXTIME_PMTMR 3 +#define VGETCPU_RDTSCP 1 +#define VGETCPU_LSL 2 + struct vxtime_data { long hpet_address; /* HPET base address */ int last; @@ -40,6 +45,7 @@ /* vsyscall space (readonly) */ extern struct vxtime_data __vxtime; +extern int __vgetcpu_mode; extern struct timespec __xtime; extern volatile unsigned long __jiffies; extern unsigned long __wall_jiffies; @@ -48,6 +54,7 @@ /* kernel space (writeable) */ extern struct vxtime_data vxtime; +extern int vgetcpu_mode; extern unsigned long wall_jiffies; extern struct timezone sys_tz; extern int sysctl_vsyscall; @@ -55,6 +62,8 @@ extern int sysctl_vsyscall; +extern void vsyscall_set_cpu(int cpu); + #define ARCH_HAVE_XTIME_LOCK 1 #endif /* __KERNEL__ */
diff --git a/include/asm-xtensa/pgtable.h b/include/asm-xtensa/pgtable.h index 7b15afb..a47cc73 100644 --- a/include/asm-xtensa/pgtable.h +++ b/include/asm-xtensa/pgtable.h
@@ -218,7 +218,7 @@ /* * The pmd contains the kernel virtual address of the pte page. */ -#define pmd_page_kernel(pmd) ((unsigned long)(pmd_val(pmd) & PAGE_MASK)) +#define pmd_page_vaddr(pmd) ((unsigned long)(pmd_val(pmd) & PAGE_MASK)) #define pmd_page(pmd) virt_to_page(pmd_val(pmd)) /* @@ -349,7 +349,7 @@ /* Find an entry in the third-level page table.. */ #define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)) #define pte_offset_kernel(dir,addr) \ - ((pte_t*) pmd_page_kernel(*(dir)) + pte_index(addr)) + ((pte_t*) pmd_page_vaddr(*(dir)) + pte_index(addr)) #define pte_offset_map(dir,addr) pte_offset_kernel((dir),(addr)) #define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir),(addr))
diff --git a/include/linux/aer.h b/include/linux/aer.h new file mode 100644 index 0000000..402e178 --- /dev/null +++ b/include/linux/aer.h
@@ -0,0 +1,24 @@ +/* + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + */ + +#ifndef _AER_H_ +#define _AER_H_ + +#if defined(CONFIG_PCIEAER) +/* pci-e port driver needs this function to enable aer */ +extern int pci_enable_pcie_error_reporting(struct pci_dev *dev); +extern int pci_find_aer_capability(struct pci_dev *dev); +extern int pci_disable_pcie_error_reporting(struct pci_dev *dev); +extern int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev); +#else +#define pci_enable_pcie_error_reporting(dev) do { } while (0) +#define pci_find_aer_capability(dev) do { } while (0) +#define pci_disable_pcie_error_reporting(dev) do { } while (0) +#define pci_cleanup_aer_uncorrect_error_status(dev) do { } while (0) +#endif + +#endif //_AER_H_ +
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h index e319c64..31e9abb 100644 --- a/include/linux/bootmem.h +++ b/include/linux/bootmem.h
@@ -4,11 +4,8 @@ #ifndef _LINUX_BOOTMEM_H #define _LINUX_BOOTMEM_H -#include <asm/pgtable.h> -#include <asm/dma.h> -#include <linux/cache.h> -#include <linux/init.h> #include <linux/mmzone.h> +#include <asm/dma.h> /* * simple boot-time physical memory area allocator. @@ -41,45 +38,64 @@ struct list_head list; } bootmem_data_t; -extern unsigned long __init bootmem_bootmap_pages (unsigned long); -extern unsigned long __init init_bootmem (unsigned long addr, unsigned long memend); -extern void __init free_bootmem (unsigned long addr, unsigned long size); -extern void * __init __alloc_bootmem (unsigned long size, unsigned long align, unsigned long goal); -extern void * __init __alloc_bootmem_nopanic (unsigned long size, unsigned long align, unsigned long goal); -extern void * __init __alloc_bootmem_low(unsigned long size, - unsigned long align, - unsigned long goal); -extern void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, - unsigned long size, - unsigned long align, - unsigned long goal); -extern void * __init __alloc_bootmem_core(struct bootmem_data *bdata, - unsigned long size, unsigned long align, unsigned long goal, - unsigned long limit); +extern unsigned long bootmem_bootmap_pages(unsigned long); +extern unsigned long init_bootmem(unsigned long addr, unsigned long memend); +extern void free_bootmem(unsigned long addr, unsigned long size); +extern void *__alloc_bootmem(unsigned long size, + unsigned long align, + unsigned long goal); +extern void *__alloc_bootmem_nopanic(unsigned long size, + unsigned long align, + unsigned long goal); +extern void *__alloc_bootmem_low(unsigned long size, + unsigned long align, + unsigned long goal); +extern void *__alloc_bootmem_low_node(pg_data_t *pgdat, + unsigned long size, + unsigned long align, + unsigned long goal); +extern void *__alloc_bootmem_core(struct bootmem_data *bdata, + unsigned long size, + unsigned long align, + unsigned long goal, + unsigned long limit); + #ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE -extern void __init reserve_bootmem (unsigned long addr, unsigned long size); +extern void reserve_bootmem(unsigned long addr, unsigned long size); #define alloc_bootmem(x) \ - __alloc_bootmem((x), SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) + __alloc_bootmem(x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_low(x) \ - __alloc_bootmem_low((x), SMP_CACHE_BYTES, 0) + __alloc_bootmem_low(x, SMP_CACHE_BYTES, 0) #define alloc_bootmem_pages(x) \ - __alloc_bootmem((x), PAGE_SIZE, __pa(MAX_DMA_ADDRESS)) + __alloc_bootmem(x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_low_pages(x) \ - __alloc_bootmem_low((x), PAGE_SIZE, 0) + __alloc_bootmem_low(x, PAGE_SIZE, 0) #endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */ -extern unsigned long __init free_all_bootmem (void); -extern void * __init __alloc_bootmem_node (pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal); -extern unsigned long __init init_bootmem_node (pg_data_t *pgdat, unsigned long freepfn, unsigned long startpfn, unsigned long endpfn); -extern void __init reserve_bootmem_node (pg_data_t *pgdat, unsigned long physaddr, unsigned long size); -extern void __init free_bootmem_node (pg_data_t *pgdat, unsigned long addr, unsigned long size); -extern unsigned long __init free_all_bootmem_node (pg_data_t *pgdat); + +extern unsigned long free_all_bootmem(void); +extern unsigned long free_all_bootmem_node(pg_data_t *pgdat); +extern void *__alloc_bootmem_node(pg_data_t *pgdat, + unsigned long size, + unsigned long align, + unsigned long goal); +extern unsigned long init_bootmem_node(pg_data_t *pgdat, + unsigned long freepfn, + unsigned long startpfn, + unsigned long endpfn); +extern void reserve_bootmem_node(pg_data_t *pgdat, + unsigned long physaddr, + unsigned long size); +extern void free_bootmem_node(pg_data_t *pgdat, + unsigned long addr, + unsigned long size); + #ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE #define alloc_bootmem_node(pgdat, x) \ - __alloc_bootmem_node((pgdat), (x), SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) + __alloc_bootmem_node(pgdat, x, SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_pages_node(pgdat, x) \ - __alloc_bootmem_node((pgdat), (x), PAGE_SIZE, __pa(MAX_DMA_ADDRESS)) + __alloc_bootmem_node(pgdat, x, PAGE_SIZE, __pa(MAX_DMA_ADDRESS)) #define alloc_bootmem_low_pages_node(pgdat, x) \ - __alloc_bootmem_low_node((pgdat), (x), PAGE_SIZE, 0) + __alloc_bootmem_low_node(pgdat, x, PAGE_SIZE, 0) #endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */ #ifdef CONFIG_HAVE_ARCH_ALLOC_REMAP @@ -89,19 +105,19 @@ { return NULL; } -#endif +#endif /* CONFIG_HAVE_ARCH_ALLOC_REMAP */ extern unsigned long __meminitdata nr_kernel_pages; extern unsigned long nr_all_pages; -extern void *__init alloc_large_system_hash(const char *tablename, - unsigned long bucketsize, - unsigned long numentries, - int scale, - int flags, - unsigned int *_hash_shift, - unsigned int *_hash_mask, - unsigned long limit); +extern void *alloc_large_system_hash(const char *tablename, + unsigned long bucketsize, + unsigned long numentries, + int scale, + int flags, + unsigned int *_hash_shift, + unsigned int *_hash_mask, + unsigned long limit); #define HASH_HIGHMEM 0x00000001 /* Consider highmem? */ #define HASH_EARLY 0x00000002 /* Allocating during early boot? */
diff --git a/include/linux/cdev.h b/include/linux/cdev.h index 2216638..ee5f53f 100644 --- a/include/linux/cdev.h +++ b/include/linux/cdev.h
@@ -23,5 +23,7 @@ void cd_forget(struct inode *); +extern struct backing_dev_info directly_mappable_cdev_bdi; + #endif #endif
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 9b4f110..060b961 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h
@@ -99,6 +99,11 @@ #define __must_check #endif +#ifndef CONFIG_ENABLE_MUST_CHECK +#undef __must_check +#define __must_check +#endif + /* * Allow us to avoid 'defined but not used' warnings on functions and data, * as well as force them to be emitted to the assembly file.
diff --git a/include/linux/console.h b/include/linux/console.h index 3bdf215..76a1807 100644 --- a/include/linux/console.h +++ b/include/linux/console.h
@@ -120,9 +120,14 @@ extern void console_start(struct console *); extern int is_console_locked(void); +#ifndef CONFIG_DISABLE_CONSOLE_SUSPEND /* Suspend and resume console messages over PM events */ extern void suspend_console(void); extern void resume_console(void); +#else +static inline void suspend_console(void) {} +static inline void resume_console(void) {} +#endif /* CONFIG_DISABLE_CONSOLE_SUSPEND */ /* Some debug stub to catch some of the obvious races in the VT code */ #if 1
diff --git a/include/linux/cpu.h b/include/linux/cpu.h index 8fb344a..3fef7d6 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h
@@ -89,4 +89,12 @@ static inline int cpu_is_offline(int cpu) { return 0; } #endif +#ifdef CONFIG_SUSPEND_SMP +extern int disable_nonboot_cpus(void); +extern void enable_nonboot_cpus(void); +#else +static inline int disable_nonboot_cpus(void) { return 0; } +static inline void enable_nonboot_cpus(void) {} +#endif + #endif /* _LINUX_CPU_H_ */
diff --git a/include/linux/dccp.h b/include/linux/dccp.h index 2d7671c..d6f4ec4 100644 --- a/include/linux/dccp.h +++ b/include/linux/dccp.h
@@ -169,6 +169,12 @@ DCCPO_MAX_CCID_SPECIFIC = 255, }; +/* DCCP CCIDS */ +enum { + DCCPC_CCID2 = 2, + DCCPC_CCID3 = 3, +}; + /* DCCP features */ enum { DCCPF_RESERVED = 0, @@ -320,7 +326,7 @@ /* initial values for each feature */ #define DCCPF_INITIAL_SEQUENCE_WINDOW 100 #define DCCPF_INITIAL_ACK_RATIO 2 -#define DCCPF_INITIAL_CCID 2 +#define DCCPF_INITIAL_CCID DCCPC_CCID2 #define DCCPF_INITIAL_SEND_ACK_VECTOR 1 /* FIXME: for now we're default to 1 but it should really be 0 */ #define DCCPF_INITIAL_SEND_NDP_COUNT 1 @@ -404,6 +410,7 @@ }; #define DCCP_SERVICE_INVALID_VALUE htonl((__u32)-1) +#define DCCP_SERVICE_CODE_IS_ABSENT 0 static inline int dccp_list_has_service(const struct dccp_service_list *sl, const __be32 service) @@ -484,11 +491,6 @@ return (struct dccp_minisock *)&dccp_sk(sk)->dccps_minisock; } -static inline int dccp_service_not_initialized(const struct sock *sk) -{ - return dccp_sk(sk)->dccps_service == DCCP_SERVICE_INVALID_VALUE; -} - static inline const char *dccp_role(const struct sock *sk) { switch (dccp_sk(sk)->dccps_role) {
diff --git a/include/linux/device.h b/include/linux/device.h index 1e5f30d..662e6a1 100644 --- a/include/linux/device.h +++ b/include/linux/device.h
@@ -15,6 +15,7 @@ #include <linux/kobject.h> #include <linux/klist.h> #include <linux/list.h> +#include <linux/compiler.h> #include <linux/types.h> #include <linux/module.h> #include <linux/pm.h> @@ -51,14 +52,17 @@ int (*probe)(struct device * dev); int (*remove)(struct device * dev); void (*shutdown)(struct device * dev); - int (*suspend)(struct device * dev, pm_message_t state); - int (*resume)(struct device * dev); + + int (*suspend)(struct device * dev, pm_message_t state); + int (*suspend_late)(struct device * dev, pm_message_t state); + int (*resume_early)(struct device * dev); + int (*resume)(struct device * dev); }; -extern int bus_register(struct bus_type * bus); +extern int __must_check bus_register(struct bus_type * bus); extern void bus_unregister(struct bus_type * bus); -extern void bus_rescan_devices(struct bus_type * bus); +extern int __must_check bus_rescan_devices(struct bus_type * bus); /* iterator helpers for buses */ @@ -67,9 +71,9 @@ struct device * bus_find_device(struct bus_type *bus, struct device *start, void *data, int (*match)(struct device *, void *)); -int bus_for_each_drv(struct bus_type * bus, struct device_driver * start, - void * data, int (*fn)(struct device_driver *, void *)); - +int __must_check bus_for_each_drv(struct bus_type *bus, + struct device_driver *start, void *data, + int (*fn)(struct device_driver *, void *)); /* driverfs interface for exporting bus attributes */ @@ -82,7 +86,8 @@ #define BUS_ATTR(_name,_mode,_show,_store) \ struct bus_attribute bus_attr_##_name = __ATTR(_name,_mode,_show,_store) -extern int bus_create_file(struct bus_type *, struct bus_attribute *); +extern int __must_check bus_create_file(struct bus_type *, + struct bus_attribute *); extern void bus_remove_file(struct bus_type *, struct bus_attribute *); struct device_driver { @@ -101,16 +106,18 @@ void (*shutdown) (struct device * dev); int (*suspend) (struct device * dev, pm_message_t state); int (*resume) (struct device * dev); + + unsigned int multithread_probe:1; }; -extern int driver_register(struct device_driver * drv); +extern int __must_check driver_register(struct device_driver * drv); extern void driver_unregister(struct device_driver * drv); extern struct device_driver * get_driver(struct device_driver * drv); extern void put_driver(struct device_driver * drv); extern struct device_driver *driver_find(const char *name, struct bus_type *bus); - +extern int driver_probe_done(void); /* driverfs interface for exporting driver attributes */ @@ -123,16 +130,17 @@ #define DRIVER_ATTR(_name,_mode,_show,_store) \ struct driver_attribute driver_attr_##_name = __ATTR(_name,_mode,_show,_store) -extern int driver_create_file(struct device_driver *, struct driver_attribute *); +extern int __must_check driver_create_file(struct device_driver *, + struct driver_attribute *); extern void driver_remove_file(struct device_driver *, struct driver_attribute *); -extern int driver_for_each_device(struct device_driver * drv, struct device * start, - void * data, int (*fn)(struct device *, void *)); +extern int __must_check driver_for_each_device(struct device_driver * drv, + struct device *start, void *data, + int (*fn)(struct device *, void *)); struct device * driver_find_device(struct device_driver *drv, struct device *start, void *data, int (*match)(struct device *, void *)); - /* * device classes */ @@ -146,17 +154,26 @@ struct list_head interfaces; struct semaphore sem; /* locks both the children and interfaces lists */ + struct kobject *virtual_dir; + struct class_attribute * class_attrs; struct class_device_attribute * class_dev_attrs; + struct device_attribute * dev_attrs; int (*uevent)(struct class_device *dev, char **envp, int num_envp, char *buffer, int buffer_size); + int (*dev_uevent)(struct device *dev, char **envp, int num_envp, + char *buffer, int buffer_size); void (*release)(struct class_device *dev); void (*class_release)(struct class *class); + void (*dev_release)(struct device *dev); + + int (*suspend)(struct device *, pm_message_t state); + int (*resume)(struct device *); }; -extern int class_register(struct class *); +extern int __must_check class_register(struct class *); extern void class_unregister(struct class *); @@ -169,7 +186,8 @@ #define CLASS_ATTR(_name,_mode,_show,_store) \ struct class_attribute class_attr_##_name = __ATTR(_name,_mode,_show,_store) -extern int class_create_file(struct class *, const struct class_attribute *); +extern int __must_check class_create_file(struct class *, + const struct class_attribute *); extern void class_remove_file(struct class *, const struct class_attribute *); struct class_device_attribute { @@ -182,7 +200,7 @@ struct class_device_attribute class_device_attr_##_name = \ __ATTR(_name,_mode,_show,_store) -extern int class_device_create_file(struct class_device *, +extern int __must_check class_device_create_file(struct class_device *, const struct class_device_attribute *); /** @@ -242,10 +260,10 @@ } -extern int class_device_register(struct class_device *); +extern int __must_check class_device_register(struct class_device *); extern void class_device_unregister(struct class_device *); extern void class_device_initialize(struct class_device *); -extern int class_device_add(struct class_device *); +extern int __must_check class_device_add(struct class_device *); extern void class_device_del(struct class_device *); extern int class_device_rename(struct class_device *, char *); @@ -255,7 +273,7 @@ extern void class_device_remove_file(struct class_device *, const struct class_device_attribute *); -extern int class_device_create_bin_file(struct class_device *, +extern int __must_check class_device_create_bin_file(struct class_device *, struct bin_attribute *); extern void class_device_remove_bin_file(struct class_device *, struct bin_attribute *); @@ -266,22 +284,23 @@ int (*add) (struct class_device *, struct class_interface *); void (*remove) (struct class_device *, struct class_interface *); + int (*add_dev) (struct device *, struct class_interface *); + void (*remove_dev) (struct device *, struct class_interface *); }; -extern int class_interface_register(struct class_interface *); +extern int __must_check class_interface_register(struct class_interface *); extern void class_interface_unregister(struct class_interface *); -extern struct class *class_create(struct module *owner, char *name); +extern struct class *class_create(struct module *owner, const char *name); extern void class_destroy(struct class *cls); extern struct class_device *class_device_create(struct class *cls, struct class_device *parent, dev_t devt, struct device *device, - char *fmt, ...) + const char *fmt, ...) __attribute__((format(printf,5,6))); extern void class_device_destroy(struct class *cls, dev_t devt); - /* interface for exporting device attributes */ struct device_attribute { struct attribute attr; @@ -294,8 +313,13 @@ #define DEVICE_ATTR(_name,_mode,_show,_store) \ struct device_attribute dev_attr_##_name = __ATTR(_name,_mode,_show,_store) -extern int device_create_file(struct device *device, struct device_attribute * entry); +extern int __must_check device_create_file(struct device *device, + struct device_attribute * entry); extern void device_remove_file(struct device * dev, struct device_attribute * attr); +extern int __must_check device_create_bin_file(struct device *dev, + struct bin_attribute *attr); +extern void device_remove_bin_file(struct device *dev, + struct bin_attribute *attr); struct device { struct klist klist_children; struct klist_node knode_parent; /* node in sibling list */ @@ -305,6 +329,7 @@ struct kobject kobj; char bus_id[BUS_ID_SIZE]; /* position on parent bus */ + unsigned is_registered:1; struct device_attribute uevent_attr; struct device_attribute *devt_attr; @@ -338,6 +363,7 @@ struct list_head node; struct class *class; /* optional*/ dev_t devt; /* dev_t, creates the sysfs "dev" */ + struct attribute_group **groups; /* optional groups */ void (*release)(struct device * dev); }; @@ -356,38 +382,41 @@ static inline int device_is_registered(struct device *dev) { - return klist_node_attached(&dev->knode_bus); + return dev->is_registered; } /* * High level routines for use by the bus drivers */ -extern int device_register(struct device * dev); +extern int __must_check device_register(struct device * dev); extern void device_unregister(struct device * dev); extern void device_initialize(struct device * dev); -extern int device_add(struct device * dev); +extern int __must_check device_add(struct device * dev); extern void device_del(struct device * dev); -extern int device_for_each_child(struct device *, void *, +extern int __must_check device_for_each_child(struct device *, void *, int (*fn)(struct device *, void *)); +extern int device_rename(struct device *dev, char *new_name); /* * Manual binding of a device to driver. See drivers/base/bus.c * for information on use. */ -extern void device_bind_driver(struct device * dev); +extern int __must_check device_bind_driver(struct device *dev); extern void device_release_driver(struct device * dev); -extern int device_attach(struct device * dev); -extern void driver_attach(struct device_driver * drv); -extern void device_reprobe(struct device *dev); +extern int __must_check device_attach(struct device * dev); +extern int __must_check driver_attach(struct device_driver *drv); +extern int __must_check device_reprobe(struct device *dev); /* * Easy functions for dynamically creating devices on the fly */ extern struct device *device_create(struct class *cls, struct device *parent, - dev_t devt, char *fmt, ...) + dev_t devt, const char *fmt, ...) __attribute__((format(printf,4,5))); extern void device_destroy(struct class *cls, dev_t devt); +extern int virtual_device_parent(struct device *dev); + /* * Platform "fixup" functions - allow the platform to have their say * about devices and actions that the general device layer doesn't @@ -412,7 +441,7 @@ /* drivers/base/firmware.c */ -extern int firmware_register(struct subsystem *); +extern int __must_check firmware_register(struct subsystem *); extern void firmware_unregister(struct subsystem *); /* debugging and troubleshooting/diagnostic helpers. */
diff --git a/include/linux/edd.h b/include/linux/edd.h index 162512b..b2b3e68 100644 --- a/include/linux/edd.h +++ b/include/linux/edd.h
@@ -52,6 +52,7 @@ #define EDD_CL_EQUALS 0x3d646465 /* "edd=" */ #define EDD_CL_OFF 0x666f /* "of" for off */ #define EDD_CL_SKIP 0x6b73 /* "sk" for skipmbr */ +#define EDD_CL_ON 0x6e6f /* "on" for on */ #ifndef __ASSEMBLY__
diff --git a/include/linux/eisa.h b/include/linux/eisa.h index 4079242..1ff7c13 100644 --- a/include/linux/eisa.h +++ b/include/linux/eisa.h
@@ -3,8 +3,8 @@ #include <linux/ioport.h> #include <linux/device.h> +#include <linux/mod_devicetable.h> -#define EISA_SIG_LEN 8 #define EISA_MAX_SLOTS 8 #define EISA_MAX_RESOURCES 4 @@ -27,12 +27,6 @@ #define EISA_CONFIG_ENABLED 1 #define EISA_CONFIG_FORCED 2 -/* The EISA signature, in ASCII form, null terminated */ -struct eisa_device_id { - char sig[EISA_SIG_LEN]; - unsigned long driver_data; -}; - /* There is not much we can say about an EISA device, apart from * signature, slot number, and base address. dma_mask is set by * default to parent device mask..*/
diff --git a/include/linux/elf-em.h b/include/linux/elf-em.h index 6a5796c..666e0a5 100644 --- a/include/linux/elf-em.h +++ b/include/linux/elf-em.h
@@ -31,6 +31,7 @@ #define EM_M32R 88 /* Renesas M32R */ #define EM_H8_300 46 /* Renesas H8/300,300H,H8S */ #define EM_FRV 0x5441 /* Fujitsu FR-V */ +#define EM_AVR32 0x18ad /* Atmel AVR32 */ /* * This is an interim value that we will use until the committee comes
diff --git a/include/linux/elfnote.h b/include/linux/elfnote.h new file mode 100644 index 0000000..67396db --- /dev/null +++ b/include/linux/elfnote.h
@@ -0,0 +1,90 @@ +#ifndef _LINUX_ELFNOTE_H +#define _LINUX_ELFNOTE_H +/* + * Helper macros to generate ELF Note structures, which are put into a + * PT_NOTE segment of the final vmlinux image. These are useful for + * including name-value pairs of metadata into the kernel binary (or + * modules?) for use by external programs. + * + * Each note has three parts: a name, a type and a desc. The name is + * intended to distinguish the note's originator, so it would be a + * company, project, subsystem, etc; it must be in a suitable form for + * use in a section name. The type is an integer which is used to tag + * the data, and is considered to be within the "name" namespace (so + * "FooCo"'s type 42 is distinct from "BarProj"'s type 42). The + * "desc" field is the actual data. There are no constraints on the + * desc field's contents, though typically they're fairly small. + * + * All notes from a given NAME are put into a section named + * .note.NAME. When the kernel image is finally linked, all the notes + * are packed into a single .notes section, which is mapped into the + * PT_NOTE segment. Because notes for a given name are grouped into + * the same section, they'll all be adjacent the output file. + * + * This file defines macros for both C and assembler use. Their + * syntax is slightly different, but they're semantically similar. + * + * See the ELF specification for more detail about ELF notes. + */ + +#ifdef __ASSEMBLER__ +/* + * Generate a structure with the same shape as Elf{32,64}_Nhdr (which + * turn out to be the same size and shape), followed by the name and + * desc data with appropriate padding. The 'desctype' argument is the + * assembler pseudo op defining the type of the data e.g. .asciz while + * 'descdata' is the data itself e.g. "hello, world". + * + * e.g. ELFNOTE(XYZCo, 42, .asciz, "forty-two") + * ELFNOTE(XYZCo, 12, .long, 0xdeadbeef) + */ +#define ELFNOTE(name, type, desctype, descdata) \ +.pushsection .note.name ; \ + .align 4 ; \ + .long 2f - 1f /* namesz */ ; \ + .long 4f - 3f /* descsz */ ; \ + .long type ; \ +1:.asciz "name" ; \ +2:.align 4 ; \ +3:desctype descdata ; \ +4:.align 4 ; \ +.popsection ; +#else /* !__ASSEMBLER__ */ +#include <linux/elf.h> +/* + * Use an anonymous structure which matches the shape of + * Elf{32,64}_Nhdr, but includes the name and desc data. The size and + * type of name and desc depend on the macro arguments. "name" must + * be a literal string, and "desc" must be passed by value. You may + * only define one note per line, since __LINE__ is used to generate + * unique symbols. + */ +#define _ELFNOTE_PASTE(a,b) a##b +#define _ELFNOTE(size, name, unique, type, desc) \ + static const struct { \ + struct elf##size##_note _nhdr; \ + unsigned char _name[sizeof(name)] \ + __attribute__((aligned(sizeof(Elf##size##_Word)))); \ + typeof(desc) _desc \ + __attribute__((aligned(sizeof(Elf##size##_Word)))); \ + } _ELFNOTE_PASTE(_note_, unique) \ + __attribute_used__ \ + __attribute__((section(".note." name), \ + aligned(sizeof(Elf##size##_Word)), \ + unused)) = { \ + { \ + sizeof(name), \ + sizeof(desc), \ + type, \ + }, \ + name, \ + desc \ + } +#define ELFNOTE(size, name, type, desc) \ + _ELFNOTE(size, name, __LINE__, type, desc) + +#define ELFNOTE32(name, type, desc) ELFNOTE(32, name, type, desc) +#define ELFNOTE64(name, type, desc) ELFNOTE(64, name, type, desc) +#endif /* __ASSEMBLER__ */ + +#endif /* _LINUX_ELFNOTE_H */
diff --git a/include/linux/err.h b/include/linux/err.h index cd3b367..1ab1d44 100644 --- a/include/linux/err.h +++ b/include/linux/err.h
@@ -15,6 +15,8 @@ */ #define MAX_ERRNO 4095 +#ifndef __ASSEMBLY__ + #define IS_ERR_VALUE(x) unlikely((x) >= (unsigned long)-MAX_ERRNO) static inline void *ERR_PTR(long error) @@ -32,4 +34,6 @@ return IS_ERR_VALUE((unsigned long)ptr); } +#endif + #endif /* _LINUX_ERR_H */
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h index 0eed918..cc08f56 100644 --- a/include/linux/ext3_fs.h +++ b/include/linux/ext3_fs.h
@@ -460,7 +460,7 @@ */ __u8 s_prealloc_blocks; /* Nr of blocks to try to preallocate*/ __u8 s_prealloc_dir_blocks; /* Nr to preallocate for dirs */ - __u16 s_reserved_gdt_blocks; /* Per group desc for online growth */ + __le16 s_reserved_gdt_blocks; /* Per group desc for online growth */ /* * Journaling support valid if EXT3_FEATURE_COMPAT_HAS_JOURNAL set. */ @@ -473,7 +473,7 @@ __u8 s_reserved_char_pad; __u16 s_reserved_word_pad; __le32 s_default_mount_opts; - __le32 s_first_meta_bg; /* First metablock block group */ + __le32 s_first_meta_bg; /* First metablock block group */ __u32 s_reserved[190]; /* Padding to the end of the block */ };
diff --git a/include/linux/ext3_fs_i.h b/include/linux/ext3_fs_i.h index 2f18b95..4395e52 100644 --- a/include/linux/ext3_fs_i.h +++ b/include/linux/ext3_fs_i.h
@@ -35,7 +35,7 @@ }; struct ext3_reserve_window_node { - struct rb_node rsv_node; + struct rb_node rsv_node; __u32 rsv_goal_size; __u32 rsv_alloc_hit; struct ext3_reserve_window rsv_window;
diff --git a/include/linux/ext3_jbd.h b/include/linux/ext3_jbd.h index c8307c0..ce0e610 100644 --- a/include/linux/ext3_jbd.h +++ b/include/linux/ext3_jbd.h
@@ -23,7 +23,7 @@ /* Define the number of blocks we need to account to a transaction to * modify one block of data. - * + * * We may have to touch one inode, one bitmap buffer, up to three * indirection blocks, the group and superblock summaries, and the data * block to complete the transaction. */ @@ -88,16 +88,16 @@ #endif int -ext3_mark_iloc_dirty(handle_t *handle, +ext3_mark_iloc_dirty(handle_t *handle, struct inode *inode, struct ext3_iloc *iloc); -/* +/* * On success, We end up with an outstanding reference count against - * iloc->bh. This _must_ be cleaned up later. + * iloc->bh. This _must_ be cleaned up later. */ -int ext3_reserve_inode_write(handle_t *handle, struct inode *inode, +int ext3_reserve_inode_write(handle_t *handle, struct inode *inode, struct ext3_iloc *iloc); int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode);
diff --git a/include/linux/fs.h b/include/linux/fs.h index 1d3e601..8f74dfb 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h
@@ -512,7 +512,6 @@ struct timespec i_mtime; struct timespec i_ctime; unsigned int i_blkbits; - unsigned long i_blksize; unsigned long i_version; blkcnt_t i_blocks; unsigned short i_bytes; @@ -528,11 +527,12 @@ #ifdef CONFIG_QUOTA struct dquot *i_dquot[MAXQUOTAS]; #endif - /* These three should probably be a union */ struct list_head i_devices; - struct pipe_inode_info *i_pipe; - struct block_device *i_bdev; - struct cdev *i_cdev; + union { + struct pipe_inode_info *i_pipe; + struct block_device *i_bdev; + struct cdev *i_cdev; + }; int i_cindex; __u32 i_generation; @@ -554,9 +554,7 @@ atomic_t i_writecount; void *i_security; - union { - void *generic_ip; - } u; + void *i_private; /* fs or device private pointer */ #ifdef __NEED_I_SIZE_ORDERED seqcount_t i_size_seqcount; #endif
diff --git a/include/linux/getcpu.h b/include/linux/getcpu.h new file mode 100644 index 0000000..031ed37 --- /dev/null +++ b/include/linux/getcpu.h
@@ -0,0 +1,16 @@ +#ifndef _LINUX_GETCPU_H +#define _LINUX_GETCPU_H 1 + +/* Cache for getcpu() to speed it up. Results might be upto a jiffie + out of date, but will be faster. + User programs should not refer to the contents of this structure. + It is only a cache for vgetcpu(). It might change in future kernels. + The user program must store this information per thread (__thread) + If you want 100% accurate information pass NULL instead. */ +struct getcpu_cache { + unsigned long t0; + unsigned long t1; + unsigned long res[4]; +}; + +#endif
diff --git a/include/linux/gfp.h b/include/linux/gfp.h index cc9e6084..bf2b6bc 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h
@@ -9,17 +9,16 @@ /* * GFP bitmasks.. + * + * Zone modifiers (see linux/mmzone.h - low three bits) + * + * Do not put any conditional on these. If necessary modify the definitions + * without the underscores and use the consistently. The definitions here may + * be used in bit comparisons. */ -/* Zone modifiers in GFP_ZONEMASK (see linux/mmzone.h - low three bits) */ #define __GFP_DMA ((__force gfp_t)0x01u) #define __GFP_HIGHMEM ((__force gfp_t)0x02u) -#ifdef CONFIG_DMA_IS_DMA32 -#define __GFP_DMA32 ((__force gfp_t)0x01) /* ZONE_DMA is ZONE_DMA32 */ -#elif BITS_PER_LONG < 64 -#define __GFP_DMA32 ((__force gfp_t)0x00) /* ZONE_NORMAL is ZONE_DMA32 */ -#else -#define __GFP_DMA32 ((__force gfp_t)0x04) /* Has own ZONE_DMA32 */ -#endif +#define __GFP_DMA32 ((__force gfp_t)0x04u) /* * Action modifiers - doesn't change the zoning @@ -46,6 +45,7 @@ #define __GFP_ZERO ((__force gfp_t)0x8000u)/* Return zeroed page on success */ #define __GFP_NOMEMALLOC ((__force gfp_t)0x10000u) /* Don't use emergency reserves */ #define __GFP_HARDWALL ((__force gfp_t)0x20000u) /* Enforce hardwall cpuset memory allocs */ +#define __GFP_THISNODE ((__force gfp_t)0x40000u)/* No fallback, no policies */ #define __GFP_BITS_SHIFT 20 /* Room for 20 __GFP_FOO bits */ #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1)) @@ -54,7 +54,7 @@ #define GFP_LEVEL_MASK (__GFP_WAIT|__GFP_HIGH|__GFP_IO|__GFP_FS| \ __GFP_COLD|__GFP_NOWARN|__GFP_REPEAT| \ __GFP_NOFAIL|__GFP_NORETRY|__GFP_NO_GROW|__GFP_COMP| \ - __GFP_NOMEMALLOC|__GFP_HARDWALL) + __GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_THISNODE) /* This equals 0, but use constants in case they ever change */ #define GFP_NOWAIT (GFP_ATOMIC & ~__GFP_HIGH) @@ -67,6 +67,13 @@ #define GFP_HIGHUSER (__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HARDWALL | \ __GFP_HIGHMEM) +#ifdef CONFIG_NUMA +#define GFP_THISNODE (__GFP_THISNODE | __GFP_NOWARN | __GFP_NORETRY) +#else +#define GFP_THISNODE 0 +#endif + + /* Flag - indicates that the buffer will be suitable for DMA. Ignored on some platforms, used as appropriate on others */ @@ -76,11 +83,19 @@ #define GFP_DMA32 __GFP_DMA32 -static inline int gfp_zone(gfp_t gfp) +static inline enum zone_type gfp_zone(gfp_t flags) { - int zone = GFP_ZONEMASK & (__force int) gfp; - BUG_ON(zone >= GFP_ZONETYPES); - return zone; + if (flags & __GFP_DMA) + return ZONE_DMA; +#ifdef CONFIG_ZONE_DMA32 + if (flags & __GFP_DMA32) + return ZONE_DMA32; +#endif +#ifdef CONFIG_HIGHMEM + if (flags & __GFP_HIGHMEM) + return ZONE_HIGHMEM; +#endif + return ZONE_NORMAL; } /*
diff --git a/include/linux/hdlc.h b/include/linux/hdlc.h index d5ebbb2..d4b3339 100644 --- a/include/linux/hdlc.h +++ b/include/linux/hdlc.h
@@ -11,95 +11,46 @@ #ifndef __HDLC_H #define __HDLC_H -#define GENERIC_HDLC_VERSION 4 /* For synchronization with sethdlc utility */ - -#define CLOCK_DEFAULT 0 /* Default setting */ -#define CLOCK_EXT 1 /* External TX and RX clock - DTE */ -#define CLOCK_INT 2 /* Internal TX and RX clock - DCE */ -#define CLOCK_TXINT 3 /* Internal TX and external RX clock */ -#define CLOCK_TXFROMRX 4 /* TX clock derived from external RX clock */ - - -#define ENCODING_DEFAULT 0 /* Default setting */ -#define ENCODING_NRZ 1 -#define ENCODING_NRZI 2 -#define ENCODING_FM_MARK 3 -#define ENCODING_FM_SPACE 4 -#define ENCODING_MANCHESTER 5 - - -#define PARITY_DEFAULT 0 /* Default setting */ -#define PARITY_NONE 1 /* No parity */ -#define PARITY_CRC16_PR0 2 /* CRC16, initial value 0x0000 */ -#define PARITY_CRC16_PR1 3 /* CRC16, initial value 0xFFFF */ -#define PARITY_CRC16_PR0_CCITT 4 /* CRC16, initial 0x0000, ITU-T version */ -#define PARITY_CRC16_PR1_CCITT 5 /* CRC16, initial 0xFFFF, ITU-T version */ -#define PARITY_CRC32_PR0_CCITT 6 /* CRC32, initial value 0x00000000 */ -#define PARITY_CRC32_PR1_CCITT 7 /* CRC32, initial value 0xFFFFFFFF */ - -#define LMI_DEFAULT 0 /* Default setting */ -#define LMI_NONE 1 /* No LMI, all PVCs are static */ -#define LMI_ANSI 2 /* ANSI Annex D */ -#define LMI_CCITT 3 /* ITU-T Annex A */ -#define LMI_CISCO 4 /* The "original" LMI, aka Gang of Four */ #define HDLC_MAX_MTU 1500 /* Ethernet 1500 bytes */ +#if 0 #define HDLC_MAX_MRU (HDLC_MAX_MTU + 10 + 14 + 4) /* for ETH+VLAN over FR */ +#else +#define HDLC_MAX_MRU 1600 /* as required for FR network */ +#endif #ifdef __KERNEL__ #include <linux/skbuff.h> #include <linux/netdevice.h> -#include <net/syncppp.h> #include <linux/hdlc/ioctl.h> -typedef struct { /* Used in Cisco and PPP mode */ - u8 address; - u8 control; - u16 protocol; -}__attribute__ ((packed)) hdlc_header; - - - -typedef struct { - u32 type; /* code */ - u32 par1; - u32 par2; - u16 rel; /* reliability */ - u32 time; -}__attribute__ ((packed)) cisco_packet; -#define CISCO_PACKET_LEN 18 -#define CISCO_BIG_PACKET_LEN 20 - - - -typedef struct pvc_device_struct { - struct net_device *master; - struct net_device *main; - struct net_device *ether; /* bridged Ethernet interface */ - struct pvc_device_struct *next; /* Sorted in ascending DLCI order */ - int dlci; - int open_count; - - struct { - unsigned int new: 1; - unsigned int active: 1; - unsigned int exist: 1; - unsigned int deleted: 1; - unsigned int fecn: 1; - unsigned int becn: 1; - unsigned int bandwidth; /* Cisco LMI reporting only */ - }state; -}pvc_device; - - - -typedef struct hdlc_device_struct { - /* To be initialized by hardware driver */ +/* Used by all network devices here, pointed to by netdev_priv(dev) */ +struct hdlc_device_desc { + int (*netif_rx)(struct sk_buff *skb); struct net_device_stats stats; +}; +/* This structure is a private property of HDLC protocols. + Hardware drivers have no interest here */ + +struct hdlc_proto { + int (*open)(struct net_device *dev); + void (*close)(struct net_device *dev); + void (*start)(struct net_device *dev); /* if open & DCD */ + void (*stop)(struct net_device *dev); /* if open & !DCD */ + void (*detach)(struct net_device *dev); + int (*ioctl)(struct net_device *dev, struct ifreq *ifr); + unsigned short (*type_trans)(struct sk_buff *skb, + struct net_device *dev); + struct module *module; + struct hdlc_proto *next; /* next protocol in the list */ +}; + + +typedef struct hdlc_device { /* used by HDLC layer to take control over HDLC device from hw driver*/ int (*attach)(struct net_device *dev, unsigned short encoding, unsigned short parity); @@ -107,82 +58,18 @@ /* hardware driver must handle this instead of dev->hard_start_xmit */ int (*xmit)(struct sk_buff *skb, struct net_device *dev); - /* Things below are for HDLC layer internal use only */ - struct { - int (*open)(struct net_device *dev); - void (*close)(struct net_device *dev); - - /* if open & DCD */ - void (*start)(struct net_device *dev); - /* if open & !DCD */ - void (*stop)(struct net_device *dev); - - void (*detach)(struct hdlc_device_struct *hdlc); - int (*netif_rx)(struct sk_buff *skb); - unsigned short (*type_trans)(struct sk_buff *skb, - struct net_device *dev); - int id; /* IF_PROTO_HDLC/CISCO/FR/etc. */ - }proto; - + const struct hdlc_proto *proto; int carrier; int open; spinlock_t state_lock; - - union { - struct { - fr_proto settings; - pvc_device *first_pvc; - int dce_pvc_count; - - struct timer_list timer; - unsigned long last_poll; - int reliable; - int dce_changed; - int request; - int fullrep_sent; - u32 last_errors; /* last errors bit list */ - u8 n391cnt; - u8 txseq; /* TX sequence number */ - u8 rxseq; /* RX sequence number */ - }fr; - - struct { - cisco_proto settings; - - struct timer_list timer; - unsigned long last_poll; - int up; - int request_sent; - u32 txseq; /* TX sequence number */ - u32 rxseq; /* RX sequence number */ - }cisco; - - struct { - raw_hdlc_proto settings; - }raw_hdlc; - - struct { - struct ppp_device pppdev; - struct ppp_device *syncppp_ptr; - int (*old_change_mtu)(struct net_device *dev, - int new_mtu); - }ppp; - }state; + void *state; void *priv; }hdlc_device; -int hdlc_raw_ioctl(struct net_device *dev, struct ifreq *ifr); -int hdlc_raw_eth_ioctl(struct net_device *dev, struct ifreq *ifr); -int hdlc_cisco_ioctl(struct net_device *dev, struct ifreq *ifr); -int hdlc_ppp_ioctl(struct net_device *dev, struct ifreq *ifr); -int hdlc_fr_ioctl(struct net_device *dev, struct ifreq *ifr); -int hdlc_x25_ioctl(struct net_device *dev, struct ifreq *ifr); - - -/* Exported from hdlc.o */ +/* Exported from hdlc module */ /* Called by hardware driver when a user requests HDLC service */ int hdlc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); @@ -191,17 +78,21 @@ #define register_hdlc_device(dev) register_netdev(dev) void unregister_hdlc_device(struct net_device *dev); + +void register_hdlc_protocol(struct hdlc_proto *proto); +void unregister_hdlc_protocol(struct hdlc_proto *proto); + struct net_device *alloc_hdlcdev(void *priv); -static __inline__ hdlc_device* dev_to_hdlc(struct net_device *dev) + +static __inline__ struct hdlc_device_desc* dev_to_desc(struct net_device *dev) { return netdev_priv(dev); } - -static __inline__ pvc_device* dev_to_pvc(struct net_device *dev) +static __inline__ hdlc_device* dev_to_hdlc(struct net_device *dev) { - return (pvc_device*)dev->priv; + return netdev_priv(dev) + sizeof(struct hdlc_device_desc); } @@ -225,18 +116,14 @@ /* Must be called by hardware driver when HDLC device is being closed */ void hdlc_close(struct net_device *dev); +int attach_hdlc_protocol(struct net_device *dev, struct hdlc_proto *proto, + int (*rx)(struct sk_buff *skb), size_t size); /* May be used by hardware driver to gain control over HDLC device */ -static __inline__ void hdlc_proto_detach(hdlc_device *hdlc) -{ - if (hdlc->proto.detach) - hdlc->proto.detach(hdlc); - hdlc->proto.detach = NULL; -} - +void detach_hdlc_protocol(struct net_device *dev); static __inline__ struct net_device_stats *hdlc_stats(struct net_device *dev) { - return &dev_to_hdlc(dev)->stats; + return &dev_to_desc(dev)->stats; } @@ -248,8 +135,8 @@ skb->mac.raw = skb->data; skb->dev = dev; - if (hdlc->proto.type_trans) - return hdlc->proto.type_trans(skb, dev); + if (hdlc->proto->type_trans) + return hdlc->proto->type_trans(skb, dev); else return htons(ETH_P_HDLC); }
diff --git a/include/linux/hdlc/ioctl.h b/include/linux/hdlc/ioctl.h index 78430ba..5839723 100644 --- a/include/linux/hdlc/ioctl.h +++ b/include/linux/hdlc/ioctl.h
@@ -1,6 +1,39 @@ #ifndef __HDLC_IOCTL_H__ #define __HDLC_IOCTL_H__ + +#define GENERIC_HDLC_VERSION 4 /* For synchronization with sethdlc utility */ + +#define CLOCK_DEFAULT 0 /* Default setting */ +#define CLOCK_EXT 1 /* External TX and RX clock - DTE */ +#define CLOCK_INT 2 /* Internal TX and RX clock - DCE */ +#define CLOCK_TXINT 3 /* Internal TX and external RX clock */ +#define CLOCK_TXFROMRX 4 /* TX clock derived from external RX clock */ + + +#define ENCODING_DEFAULT 0 /* Default setting */ +#define ENCODING_NRZ 1 +#define ENCODING_NRZI 2 +#define ENCODING_FM_MARK 3 +#define ENCODING_FM_SPACE 4 +#define ENCODING_MANCHESTER 5 + + +#define PARITY_DEFAULT 0 /* Default setting */ +#define PARITY_NONE 1 /* No parity */ +#define PARITY_CRC16_PR0 2 /* CRC16, initial value 0x0000 */ +#define PARITY_CRC16_PR1 3 /* CRC16, initial value 0xFFFF */ +#define PARITY_CRC16_PR0_CCITT 4 /* CRC16, initial 0x0000, ITU-T version */ +#define PARITY_CRC16_PR1_CCITT 5 /* CRC16, initial 0xFFFF, ITU-T version */ +#define PARITY_CRC32_PR0_CCITT 6 /* CRC32, initial value 0x00000000 */ +#define PARITY_CRC32_PR1_CCITT 7 /* CRC32, initial value 0xFFFFFFFF */ + +#define LMI_DEFAULT 0 /* Default setting */ +#define LMI_NONE 1 /* No LMI, all PVCs are static */ +#define LMI_ANSI 2 /* ANSI Annex D */ +#define LMI_CCITT 3 /* ITU-T Annex A */ +#define LMI_CISCO 4 /* The "original" LMI, aka Gang of Four */ + typedef struct { unsigned int clock_rate; /* bits per second */ unsigned int clock_type; /* internal, external, TX-internal etc. */
diff --git a/include/linux/highmem.h b/include/linux/highmem.h index 85ce7ef..fd7d12d 100644 --- a/include/linux/highmem.h +++ b/include/linux/highmem.h
@@ -24,11 +24,15 @@ /* declarations for linux/mm/highmem.c */ unsigned int nr_free_highpages(void); +extern unsigned long totalhigh_pages; #else /* CONFIG_HIGHMEM */ static inline unsigned int nr_free_highpages(void) { return 0; } +#define totalhigh_pages 0 + +#ifndef ARCH_HAS_KMAP static inline void *kmap(struct page *page) { might_sleep(); @@ -41,6 +45,7 @@ #define kunmap_atomic(addr, idx) do { } while (0) #define kmap_atomic_pfn(pfn, idx) page_address(pfn_to_page(pfn)) #define kmap_atomic_to_page(ptr) virt_to_page(ptr) +#endif #endif /* CONFIG_HIGHMEM */
diff --git a/include/linux/i2c-algo-bit.h b/include/linux/i2c-algo-bit.h index c0e7fab..c8f8df2 100644 --- a/include/linux/i2c-algo-bit.h +++ b/include/linux/i2c-algo-bit.h
@@ -40,7 +40,6 @@ /* local settings */ int udelay; /* half-clock-cycle time in microsecs */ /* i.e. clock is (500 / udelay) KHz */ - int mdelay; /* in millisecs, unused */ int timeout; /* in jiffies */ };
diff --git a/include/linux/i2c-algo-pcf.h b/include/linux/i2c-algo-pcf.h index 18b0adf..9908f3f 100644 --- a/include/linux/i2c-algo-pcf.h +++ b/include/linux/i2c-algo-pcf.h
@@ -35,7 +35,6 @@ /* local settings */ int udelay; - int mdelay; int timeout; };
diff --git a/include/linux/i2c-algo-sibyte.h b/include/linux/i2c-algo-sibyte.h deleted file mode 100644 index 03914de..0000000 --- a/include/linux/i2c-algo-sibyte.h +++ /dev/null
@@ -1,33 +0,0 @@ -/* - * Copyright (C) 2001,2002,2003 Broadcom Corporation - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#ifndef I2C_ALGO_SIBYTE_H -#define I2C_ALGO_SIBYTE_H 1 - -#include <linux/i2c.h> - -struct i2c_algo_sibyte_data { - void *data; /* private data */ - int bus; /* which bus */ - void *reg_base; /* CSR base */ -}; - -int i2c_sibyte_add_bus(struct i2c_adapter *, int speed); -int i2c_sibyte_del_bus(struct i2c_adapter *); - -#endif /* I2C_ALGO_SIBYTE_H */
diff --git a/include/linux/i2c.h b/include/linux/i2c.h index eb0628a..9b5d047 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h
@@ -64,14 +64,6 @@ */ extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num); -/* - * Some adapter types (i.e. PCF 8584 based ones) may support slave behaviuor. - * This is not tested/implemented yet and will change in the future. - */ -extern int i2c_slave_send(struct i2c_client *,char*,int); -extern int i2c_slave_recv(struct i2c_client *,char*,int); - - /* This is the very generalized SMBus access routine. You probably do not want to use this, though; one of the functions below may be much easier, @@ -201,10 +193,6 @@ unsigned short flags, char read_write, u8 command, int size, union i2c_smbus_data * data); - /* --- these optional/future use for some adapter types.*/ - int (*slave_send)(struct i2c_adapter *,char*,int); - int (*slave_recv)(struct i2c_adapter *,char*,int); - /* --- ioctl like call to set div. parameters. */ int (*algo_control)(struct i2c_adapter *, unsigned int, unsigned long); @@ -220,7 +208,7 @@ struct module *owner; unsigned int id; unsigned int class; - struct i2c_algorithm *algo;/* the algorithm to access the bus */ + const struct i2c_algorithm *algo; /* the algorithm to access the bus */ void *algo_data; /* --- administration stuff. */
diff --git a/include/linux/if.h b/include/linux/if.h index cd080d7..8018c2e 100644 --- a/include/linux/if.h +++ b/include/linux/if.h
@@ -59,6 +59,8 @@ #define IFF_SLAVE_INACTIVE 0x4 /* bonding slave not the curr. active */ #define IFF_MASTER_8023AD 0x8 /* bonding master, 802.3ad. */ #define IFF_MASTER_ALB 0x10 /* bonding master, balance-alb. */ +#define IFF_BONDING 0x20 /* bonding master or slave */ +#define IFF_SLAVE_NEEDARP 0x40 /* need ARPs for validation */ #define IF_GET_IFACE 0x0001 /* for querying only */ #define IF_GET_PROTO 0x0002
diff --git a/include/linux/init.h b/include/linux/init.h index 6667785..e92b145 100644 --- a/include/linux/init.h +++ b/include/linux/init.h
@@ -68,6 +68,7 @@ /* Defined in init/main.c */ extern char saved_command_line[]; +extern unsigned int reset_devices; /* used by init/main.c */ extern void setup_arch(char **);
diff --git a/include/linux/irq.h b/include/linux/irq.h index fbf6d90..48d3cb3 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h
@@ -320,7 +320,9 @@ * Monolithic do_IRQ implementation. * (is an explicit fastcall, because i386 4KSTACKS calls it from assembly) */ +#ifndef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ extern fastcall unsigned int __do_IRQ(unsigned int irq, struct pt_regs *regs); +#endif /* * Architectures call this to let the generic IRQ layer @@ -332,10 +334,14 @@ { struct irq_desc *desc = irq_desc + irq; +#ifdef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ + desc->handle_irq(irq, desc, regs); +#else if (likely(desc->handle_irq)) desc->handle_irq(irq, desc, regs); else __do_IRQ(irq, regs); +#endif } /* Handling of unhandled and spurious interrupts: */
diff --git a/include/linux/jbd.h b/include/linux/jbd.h index a04c154..a6d9daa 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h
@@ -1,6 +1,6 @@ /* * linux/include/linux/jbd.h - * + * * Written by Stephen C. Tweedie <sct@redhat.com> * * Copyright 1998-2000 Red Hat, Inc --- All Rights Reserved @@ -64,7 +64,7 @@ if ((n) <= journal_enable_debug) { \ printk (KERN_DEBUG "(%s, %d): %s: ", \ __FILE__, __LINE__, __FUNCTION__); \ - printk (f, ## a); \ + printk (f, ## a); \ } \ } while (0) #else @@ -97,8 +97,8 @@ * number of outstanding buffers possible at any time. When the * operation completes, any buffer credits not used are credited back to * the transaction, so that at all times we know how many buffers the - * outstanding updates on a transaction might possibly touch. - * + * outstanding updates on a transaction might possibly touch. + * * This is an opaque datatype. **/ typedef struct handle_s handle_t; /* Atomic operation type */ @@ -108,7 +108,7 @@ * typedef journal_t - The journal_t maintains all of the journaling state information for a single filesystem. * * journal_t is linked to from the fs superblock structure. - * + * * We use the journal_t to keep track of all outstanding transaction * activity on the filesystem, and to manage the state of the log * writing process. @@ -128,7 +128,7 @@ * On-disk structures */ -/* +/* * Descriptor block types: */ @@ -149,8 +149,8 @@ } journal_header_t; -/* - * The block tag: used to describe a single buffer in the journal +/* + * The block tag: used to describe a single buffer in the journal */ typedef struct journal_block_tag_s { @@ -158,9 +158,9 @@ __be32 t_flags; /* See below */ } journal_block_tag_t; -/* +/* * The revoke descriptor: used on disk to describe a series of blocks to - * be revoked from the log + * be revoked from the log */ typedef struct journal_revoke_header_s { @@ -201,9 +201,9 @@ /* 0x0024 */ /* Remaining fields are only valid in a version-2 superblock */ - __be32 s_feature_compat; /* compatible feature set */ - __be32 s_feature_incompat; /* incompatible feature set */ - __be32 s_feature_ro_compat; /* readonly-compatible feature set */ + __be32 s_feature_compat; /* compatible feature set */ + __be32 s_feature_incompat; /* incompatible feature set */ + __be32 s_feature_ro_compat; /* readonly-compatible feature set */ /* 0x0030 */ __u8 s_uuid[16]; /* 128-bit uuid for journal */ @@ -374,10 +374,10 @@ **/ /* Docbook can't yet cope with the bit fields, but will leave the documentation - * in so it can be fixed later. + * in so it can be fixed later. */ -struct handle_s +struct handle_s { /* Which compound transaction is this update a part of? */ transaction_t *h_transaction; @@ -435,7 +435,7 @@ * */ -struct transaction_s +struct transaction_s { /* Pointer to the journal for this transaction. [no locking] */ journal_t *t_journal; @@ -455,7 +455,7 @@ T_RUNDOWN, T_FLUSH, T_COMMIT, - T_FINISHED + T_FINISHED } t_state; /* @@ -569,7 +569,7 @@ * journal_t. * @j_flags: General journaling state flags * @j_errno: Is there an outstanding uncleared error on the journal (from a - * prior abort)? + * prior abort)? * @j_sb_buffer: First part of superblock buffer * @j_superblock: Second part of superblock buffer * @j_format_version: Version of the superblock format @@ -583,7 +583,7 @@ * @j_wait_transaction_locked: Wait queue for waiting for a locked transaction * to start committing, or for a barrier lock to be released * @j_wait_logspace: Wait queue for waiting for checkpointing to complete - * @j_wait_done_commit: Wait queue for waiting for commit to complete + * @j_wait_done_commit: Wait queue for waiting for commit to complete * @j_wait_checkpoint: Wait queue to trigger checkpointing * @j_wait_commit: Wait queue to trigger commit * @j_wait_updates: Wait queue to wait for updates to complete @@ -592,7 +592,7 @@ * @j_tail: Journal tail - identifies the oldest still-used block in the * journal. * @j_free: Journal free - how many free blocks are there in the journal? - * @j_first: The block number of the first usable block + * @j_first: The block number of the first usable block * @j_last: The block number one beyond the last usable block * @j_dev: Device where we store the journal * @j_blocksize: blocksize for the location where we store the journal. @@ -604,12 +604,12 @@ * @j_list_lock: Protects the buffer lists and internal buffer state. * @j_inode: Optional inode where we store the journal. If present, all journal * block numbers are mapped into this inode via bmap(). - * @j_tail_sequence: Sequence number of the oldest transaction in the log + * @j_tail_sequence: Sequence number of the oldest transaction in the log * @j_transaction_sequence: Sequence number of the next transaction to grant * @j_commit_sequence: Sequence number of the most recently committed * transaction * @j_commit_request: Sequence number of the most recent transaction wanting - * commit + * commit * @j_uuid: Uuid of client object. * @j_task: Pointer to the current commit thread for this journal * @j_max_transaction_buffers: Maximum number of metadata buffers to allow in a @@ -699,7 +699,7 @@ wait_queue_head_t j_wait_updates; /* Semaphore for locking against concurrent checkpoints */ - struct mutex j_checkpoint_mutex; + struct mutex j_checkpoint_mutex; /* * Journal head: identifies the first unused block in the journal. @@ -732,7 +732,7 @@ */ struct block_device *j_dev; int j_blocksize; - unsigned int j_blk_offset; + unsigned long j_blk_offset; /* * Device which holds the client fs. For internal journal this will be @@ -823,8 +823,8 @@ void *j_private; }; -/* - * Journal flag definitions +/* + * Journal flag definitions */ #define JFS_UNMOUNT 0x001 /* Journal thread is being destroyed */ #define JFS_ABORT 0x002 /* Journaling has been aborted for errors. */ @@ -833,7 +833,7 @@ #define JFS_LOADED 0x010 /* The journal superblock has been loaded */ #define JFS_BARRIER 0x020 /* Use IDE barriers */ -/* +/* * Function declarations for the journaling transaction and buffer * management */ @@ -862,11 +862,11 @@ void __journal_insert_checkpoint(struct journal_head *, transaction_t *); /* Buffer IO */ -extern int +extern int journal_write_metadata_buffer(transaction_t *transaction, struct journal_head *jh_in, struct journal_head **jh_out, - int blocknr); + unsigned long blocknr); /* Transaction locking */ extern void __wait_on_journal (journal_t *); @@ -890,7 +890,7 @@ /* The journaling code user interface: * * Create and destroy handles - * Register buffer modifications against the current transaction. + * Register buffer modifications against the current transaction. */ extern handle_t *journal_start(journal_t *, int nblocks); @@ -917,11 +917,11 @@ int start, int len, int bsize); extern journal_t * journal_init_inode (struct inode *); extern int journal_update_format (journal_t *); -extern int journal_check_used_features +extern int journal_check_used_features (journal_t *, unsigned long, unsigned long, unsigned long); -extern int journal_check_available_features +extern int journal_check_available_features (journal_t *, unsigned long, unsigned long, unsigned long); -extern int journal_set_features +extern int journal_set_features (journal_t *, unsigned long, unsigned long, unsigned long); extern int journal_create (journal_t *); extern int journal_load (journal_t *journal); @@ -1015,7 +1015,7 @@ * bit, when set, indicates that we have had a fatal error somewhere, * either inside the journaling layer or indicated to us by the client * (eg. ext3), and that we and should not commit any further - * transactions. + * transactions. */ static inline int is_journal_aborted(journal_t *journal) @@ -1082,7 +1082,7 @@ #define BJ_Reserved 7 /* Buffer is reserved for access by journal */ #define BJ_Locked 8 /* Locked for I/O during commit */ #define BJ_Types 9 - + extern int jbd_blocks_per_page(struct inode *inode); #ifdef __KERNEL__
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h index 329ebcf..c8d5f20 100644 --- a/include/linux/jiffies.h +++ b/include/linux/jiffies.h
@@ -115,6 +115,21 @@ ((long)(a) - (long)(b) >= 0)) #define time_before_eq(a,b) time_after_eq(b,a) +/* Same as above, but does so with platform independent 64bit types. + * These must be used when utilizing jiffies_64 (i.e. return value of + * get_jiffies_64() */ +#define time_after64(a,b) \ + (typecheck(__u64, a) && \ + typecheck(__u64, b) && \ + ((__s64)(b) - (__s64)(a) < 0)) +#define time_before64(a,b) time_after64(b,a) + +#define time_after_eq64(a,b) \ + (typecheck(__u64, a) && \ + typecheck(__u64, b) && \ + ((__s64)(a) - (__s64)(b) >= 0)) +#define time_before_eq64(a,b) time_after_eq64(b,a) + /* * Have the 32 bit jiffies value wrap 5 minutes after boot * so jiffies wrap bugs show up earlier.
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index e44a37e..4d00988 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h
@@ -187,6 +187,7 @@ extern int oops_in_progress; /* If set, an oops, panic(), BUG() or die() is in progress */ extern int panic_timeout; extern int panic_on_oops; +extern int panic_on_unrecovered_nmi; extern int tainted; extern const char *print_tainted(void); extern void add_taint(unsigned); @@ -349,4 +350,11 @@ /* Trap pasters of __FUNCTION__ at compile-time */ #define __FUNCTION__ (__func__) +/* This helps us to avoid #ifdef CONFIG_NUMA */ +#ifdef CONFIG_NUMA +#define NUMA_BUILD 1 +#else +#define NUMA_BUILD 0 +#endif + #endif
diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 2d22932..bcd9cd1 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h
@@ -20,6 +20,7 @@ #include <linux/types.h> #include <linux/list.h> #include <linux/sysfs.h> +#include <linux/compiler.h> #include <linux/spinlock.h> #include <linux/rwsem.h> #include <linux/kref.h> @@ -71,12 +72,12 @@ extern void kobject_init(struct kobject *); extern void kobject_cleanup(struct kobject *); -extern int kobject_add(struct kobject *); +extern int __must_check kobject_add(struct kobject *); extern void kobject_del(struct kobject *); -extern int kobject_rename(struct kobject *, const char *new_name); +extern int __must_check kobject_rename(struct kobject *, const char *new_name); -extern int kobject_register(struct kobject *); +extern int __must_check kobject_register(struct kobject *); extern void kobject_unregister(struct kobject *); extern struct kobject * kobject_get(struct kobject *); @@ -128,8 +129,8 @@ extern void kset_init(struct kset * k); -extern int kset_add(struct kset * k); -extern int kset_register(struct kset * k); +extern int __must_check kset_add(struct kset * k); +extern int __must_check kset_register(struct kset * k); extern void kset_unregister(struct kset * k); static inline struct kset * to_kset(struct kobject * kobj) @@ -239,7 +240,7 @@ (obj)->subsys.kset.kobj.kset = &(_subsys).kset extern void subsystem_init(struct subsystem *); -extern int subsystem_register(struct subsystem *); +extern int __must_check subsystem_register(struct subsystem *); extern void subsystem_unregister(struct subsystem *); static inline struct subsystem * subsys_get(struct subsystem * s) @@ -258,7 +259,8 @@ ssize_t (*store)(struct subsystem *, const char *, size_t); }; -extern int subsys_create_file(struct subsystem * , struct subsys_attribute *); +extern int __must_check subsys_create_file(struct subsystem * , + struct subsys_attribute *); #if defined(CONFIG_HOTPLUG) void kobject_uevent(struct kobject *kobj, enum kobject_action action);
diff --git a/include/linux/libata.h b/include/linux/libata.h index 1ef3d39..d6a3d4b 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h
@@ -36,7 +36,15 @@ #include <linux/workqueue.h> #include <scsi/scsi_host.h> +/* + * Define if arch has non-standard setup. This is a _PCI_ standard + * not a legacy or ISA standard. + */ +#ifdef CONFIG_ATA_NONSTANDARD #include <asm/libata-portmap.h> +#else +#include <asm-generic/libata-portmap.h> +#endif /* * compile-time options: to be removed as soon as all the drivers are
diff --git a/include/linux/linkage.h b/include/linux/linkage.h index 932021f..6c9873f 100644 --- a/include/linux/linkage.h +++ b/include/linux/linkage.h
@@ -35,9 +35,13 @@ #endif #define KPROBE_ENTRY(name) \ - .section .kprobes.text, "ax"; \ + .pushsection .kprobes.text, "ax"; \ ENTRY(name) +#define KPROBE_END(name) \ + END(name); \ + .popsection + #ifndef END #define END(name) \ .size name, .-name
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h index 72440f0..09f0f57 100644 --- a/include/linux/mempolicy.h +++ b/include/linux/mempolicy.h
@@ -162,9 +162,9 @@ unsigned long addr); extern unsigned slab_node(struct mempolicy *policy); -extern int policy_zone; +extern enum zone_type policy_zone; -static inline void check_highest_zone(int k) +static inline void check_highest_zone(enum zone_type k) { if (k > policy_zone) policy_zone = k;
diff --git a/include/linux/mm.h b/include/linux/mm.h index 224178a..7b703b6 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h
@@ -15,6 +15,8 @@ #include <linux/fs.h> #include <linux/mutex.h> #include <linux/debug_locks.h> +#include <linux/backing-dev.h> +#include <linux/mm_types.h> struct mempolicy; struct anon_vma; @@ -197,6 +199,7 @@ void (*open)(struct vm_area_struct * area); void (*close)(struct vm_area_struct * area); struct page * (*nopage)(struct vm_area_struct * area, unsigned long address, int *type); + unsigned long (*nopfn)(struct vm_area_struct * area, unsigned long address); int (*populate)(struct vm_area_struct * area, unsigned long address, unsigned long len, pgprot_t prot, unsigned long pgoff, int nonblock); /* notification that a previously read-only page is about to become @@ -214,61 +217,6 @@ struct mmu_gather; struct inode; -/* - * Each physical page in the system has a struct page associated with - * it to keep track of whatever it is we are using the page for at the - * moment. Note that we have no way to track which tasks are using - * a page. - */ -struct page { - unsigned long flags; /* Atomic flags, some possibly - * updated asynchronously */ - atomic_t _count; /* Usage count, see below. */ - atomic_t _mapcount; /* Count of ptes mapped in mms, - * to show when page is mapped - * & limit reverse map searches. - */ - union { - struct { - unsigned long private; /* Mapping-private opaque data: - * usually used for buffer_heads - * if PagePrivate set; used for - * swp_entry_t if PageSwapCache; - * indicates order in the buddy - * system if PG_buddy is set. - */ - struct address_space *mapping; /* If low bit clear, points to - * inode address_space, or NULL. - * If page mapped as anonymous - * memory, low bit is set, and - * it points to anon_vma object: - * see PAGE_MAPPING_ANON below. - */ - }; -#if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS - spinlock_t ptl; -#endif - }; - pgoff_t index; /* Our offset within mapping. */ - struct list_head lru; /* Pageout list, eg. active_list - * protected by zone->lru_lock ! - */ - /* - * On machines where all RAM is mapped into kernel address space, - * we can simply calculate the virtual address. On machines with - * highmem some memory is mapped into kernel virtual memory - * dynamically, so we need a place to store that address. - * Note that this field could be 16 bits on x86 ... ;) - * - * Architectures with slow multiplication can define - * WANT_PAGE_VIRTUAL in asm/page.h - */ -#if defined(WANT_PAGE_VIRTUAL) - void *virtual; /* Kernel virtual address (NULL if - not kmapped, ie. highmem) */ -#endif /* WANT_PAGE_VIRTUAL */ -}; - #define page_private(page) ((page)->private) #define set_page_private(page, v) ((page)->private = (v)) @@ -278,6 +226,12 @@ */ #include <linux/page-flags.h> +#ifdef CONFIG_DEBUG_VM +#define VM_BUG_ON(cond) BUG_ON(cond) +#else +#define VM_BUG_ON(condition) do { } while(0) +#endif + /* * Methods to modify the page usage count. * @@ -292,12 +246,11 @@ */ /* - * Drop a ref, return true if the logical refcount fell to zero (the page has - * no users) + * Drop a ref, return true if the refcount fell to zero (the page has no users) */ static inline int put_page_testzero(struct page *page) { - BUG_ON(atomic_read(&page->_count) == 0); + VM_BUG_ON(atomic_read(&page->_count) == 0); return atomic_dec_and_test(&page->_count); } @@ -307,11 +260,10 @@ */ static inline int get_page_unless_zero(struct page *page) { + VM_BUG_ON(PageCompound(page)); return atomic_inc_not_zero(&page->_count); } -extern void FASTCALL(__page_cache_release(struct page *)); - static inline int page_count(struct page *page) { if (unlikely(PageCompound(page))) @@ -323,6 +275,7 @@ { if (unlikely(PageCompound(page))) page = (struct page *)page_private(page); + VM_BUG_ON(atomic_read(&page->_count) == 0); atomic_inc(&page->_count); } @@ -349,43 +302,55 @@ * For the non-reserved pages, page_count(page) denotes a reference count. * page_count() == 0 means the page is free. page->lru is then used for * freelist management in the buddy allocator. - * page_count() == 1 means the page is used for exactly one purpose - * (e.g. a private data page of one process). + * page_count() > 0 means the page has been allocated. * - * A page may be used for kmalloc() or anyone else who does a - * __get_free_page(). In this case the page_count() is at least 1, and - * all other fields are unused but should be 0 or NULL. The - * management of this page is the responsibility of the one who uses - * it. + * Pages are allocated by the slab allocator in order to provide memory + * to kmalloc and kmem_cache_alloc. In this case, the management of the + * page, and the fields in 'struct page' are the responsibility of mm/slab.c + * unless a particular usage is carefully commented. (the responsibility of + * freeing the kmalloc memory is the caller's, of course). * - * The other pages (we may call them "process pages") are completely + * A page may be used by anyone else who does a __get_free_page(). + * In this case, page_count still tracks the references, and should only + * be used through the normal accessor functions. The top bits of page->flags + * and page->virtual store page management information, but all other fields + * are unused and could be used privately, carefully. The management of this + * page is the responsibility of the one who allocated it, and those who have + * subsequently been given references to it. + * + * The other pages (we may call them "pagecache pages") are completely * managed by the Linux memory manager: I/O, buffers, swapping etc. * The following discussion applies only to them. * - * A page may belong to an inode's memory mapping. In this case, - * page->mapping is the pointer to the inode, and page->index is the - * file offset of the page, in units of PAGE_CACHE_SIZE. + * A pagecache page contains an opaque `private' member, which belongs to the + * page's address_space. Usually, this is the address of a circular list of + * the page's disk buffers. PG_private must be set to tell the VM to call + * into the filesystem to release these pages. * - * A page contains an opaque `private' member, which belongs to the - * page's address_space. Usually, this is the address of a circular - * list of the page's disk buffers. + * A page may belong to an inode's memory mapping. In this case, page->mapping + * is the pointer to the inode, and page->index is the file offset of the page, + * in units of PAGE_CACHE_SIZE. * - * For pages belonging to inodes, the page_count() is the number of - * attaches, plus 1 if `private' contains something, plus one for - * the page cache itself. + * If pagecache pages are not associated with an inode, they are said to be + * anonymous pages. These may become associated with the swapcache, and in that + * case PG_swapcache is set, and page->private is an offset into the swapcache. * - * Instead of keeping dirty/clean pages in per address-space lists, we instead - * now tag pages as dirty/under writeback in the radix tree. + * In either case (swapcache or inode backed), the pagecache itself holds one + * reference to the page. Setting PG_private should also increment the + * refcount. The each user mapping also has a reference to the page. * - * There is also a per-mapping radix tree mapping index to the page - * in memory if present. The tree is rooted at mapping->root. + * The pagecache pages are stored in a per-mapping radix tree, which is + * rooted at mapping->page_tree, and indexed by offset. + * Where 2.4 and early 2.6 kernels kept dirty/clean pages in per-address_space + * lists, we instead now tag pages as dirty/writeback in the radix tree. * - * All process pages can do I/O: + * All pagecache pages may be subject to I/O: * - inode pages may need to be read from disk, * - inode pages which have been modified and are MAP_SHARED may need - * to be written to disk, - * - private pages which have been modified may need to be swapped out - * to swap space and (later) to be read back into memory. + * to be written back to the inode on disk, + * - anonymous pages (including MAP_PRIVATE file mappings) which have been + * modified may need to be swapped out to swap space and (later) to be read + * back into memory. */ /* @@ -463,7 +428,7 @@ #define SECTIONS_MASK ((1UL << SECTIONS_WIDTH) - 1) #define ZONETABLE_MASK ((1UL << ZONETABLE_SHIFT) - 1) -static inline unsigned long page_zonenum(struct page *page) +static inline enum zone_type page_zonenum(struct page *page) { return (page->flags >> ZONES_PGSHIFT) & ZONES_MASK; } @@ -480,23 +445,33 @@ return zone_table[page_zone_id(page)]; } +static inline unsigned long zone_to_nid(struct zone *zone) +{ +#ifdef CONFIG_NUMA + return zone->node; +#else + return 0; +#endif +} + static inline unsigned long page_to_nid(struct page *page) { if (FLAGS_HAS_NODE) return (page->flags >> NODES_PGSHIFT) & NODES_MASK; else - return page_zone(page)->zone_pgdat->node_id; + return zone_to_nid(page_zone(page)); } static inline unsigned long page_to_section(struct page *page) { return (page->flags >> SECTIONS_PGSHIFT) & SECTIONS_MASK; } -static inline void set_page_zone(struct page *page, unsigned long zone) +static inline void set_page_zone(struct page *page, enum zone_type zone) { page->flags &= ~(ZONES_MASK << ZONES_PGSHIFT); page->flags |= (zone & ZONES_MASK) << ZONES_PGSHIFT; } + static inline void set_page_node(struct page *page, unsigned long node) { page->flags &= ~(NODES_MASK << NODES_PGSHIFT); @@ -508,7 +483,7 @@ page->flags |= (section & SECTIONS_MASK) << SECTIONS_PGSHIFT; } -static inline void set_page_links(struct page *page, unsigned long zone, +static inline void set_page_links(struct page *page, enum zone_type zone, unsigned long node, unsigned long pfn) { set_page_zone(page, zone); @@ -521,11 +496,6 @@ */ #include <linux/vmstat.h> -#ifndef CONFIG_DISCONTIGMEM -/* The array of struct pages - for discontigmem use pgdat->lmem_map */ -extern struct page *mem_map; -#endif - static __always_inline void *lowmem_page_address(struct page *page) { return __va(page_to_pfn(page) << PAGE_SHIFT); @@ -625,6 +595,12 @@ #define NOPAGE_OOM ((struct page *) (-1)) /* + * Error return values for the *_nopfn functions + */ +#define NOPFN_SIGBUS ((unsigned long) -1) +#define NOPFN_OOM ((unsigned long) -2) + +/* * Different kinds of faults, as returned by handle_mm_fault(). * Used to decide whether a process gets delivered SIGBUS or * just gets major/minor fault counters bumped up. @@ -802,6 +778,39 @@ extern struct shrinker *set_shrinker(int, shrinker_t); extern void remove_shrinker(struct shrinker *shrinker); +/* + * Some shared mappigns will want the pages marked read-only + * to track write events. If so, we'll downgrade vm_page_prot + * to the private version (using protection_map[] without the + * VM_SHARED bit). + */ +static inline int vma_wants_writenotify(struct vm_area_struct *vma) +{ + unsigned int vm_flags = vma->vm_flags; + + /* If it was private or non-writable, the write bit is already clear */ + if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED))) + return 0; + + /* The backer wishes to know when pages are first written to? */ + if (vma->vm_ops && vma->vm_ops->page_mkwrite) + return 1; + + /* The open routine did something to the protections already? */ + if (pgprot_val(vma->vm_page_prot) != + pgprot_val(protection_map[vm_flags & + (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)])) + return 0; + + /* Specialty mapping? */ + if (vm_flags & (VM_PFNMAP|VM_INSERTPAGE)) + return 0; + + /* Can the mapping track the dirty pages? */ + return vma->vm_file && vma->vm_file->f_mapping && + mapping_cap_account_dirty(vma->vm_file->f_mapping); +} + extern pte_t *FASTCALL(get_locked_pte(struct mm_struct *mm, unsigned long addr, spinlock_t **ptl)); int __pud_alloc(struct mm_struct *mm, pgd_t *pgd, unsigned long address); @@ -879,6 +888,56 @@ extern void free_area_init_node(int nid, pg_data_t *pgdat, unsigned long * zones_size, unsigned long zone_start_pfn, unsigned long *zholes_size); +#ifdef CONFIG_ARCH_POPULATES_NODE_MAP +/* + * With CONFIG_ARCH_POPULATES_NODE_MAP set, an architecture may initialise its + * zones, allocate the backing mem_map and account for memory holes in a more + * architecture independent manner. This is a substitute for creating the + * zone_sizes[] and zholes_size[] arrays and passing them to + * free_area_init_node() + * + * An architecture is expected to register range of page frames backed by + * physical memory with add_active_range() before calling + * free_area_init_nodes() passing in the PFN each zone ends at. At a basic + * usage, an architecture is expected to do something like + * + * unsigned long max_zone_pfns[MAX_NR_ZONES] = {max_dma, max_normal_pfn, + * max_highmem_pfn}; + * for_each_valid_physical_page_range() + * add_active_range(node_id, start_pfn, end_pfn) + * free_area_init_nodes(max_zone_pfns); + * + * If the architecture guarantees that there are no holes in the ranges + * registered with add_active_range(), free_bootmem_active_regions() + * will call free_bootmem_node() for each registered physical page range. + * Similarly sparse_memory_present_with_active_regions() calls + * memory_present() for each range when SPARSEMEM is enabled. + * + * See mm/page_alloc.c for more information on each function exposed by + * CONFIG_ARCH_POPULATES_NODE_MAP + */ +extern void free_area_init_nodes(unsigned long *max_zone_pfn); +extern void add_active_range(unsigned int nid, unsigned long start_pfn, + unsigned long end_pfn); +extern void shrink_active_range(unsigned int nid, unsigned long old_end_pfn, + unsigned long new_end_pfn); +extern void push_node_boundaries(unsigned int nid, unsigned long start_pfn, + unsigned long end_pfn); +extern void remove_all_active_ranges(void); +extern unsigned long absent_pages_in_range(unsigned long start_pfn, + unsigned long end_pfn); +extern void get_pfn_range_for_nid(unsigned int nid, + unsigned long *start_pfn, unsigned long *end_pfn); +extern unsigned long find_min_pfn_with_active_regions(void); +extern unsigned long find_max_pfn_with_active_regions(void); +extern void free_bootmem_with_active_regions(int nid, + unsigned long max_low_pfn); +extern void sparse_memory_present_with_active_regions(int nid); +#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID +extern int early_pfn_to_nid(unsigned long pfn); +#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */ +#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ +extern void set_dma_reserve(unsigned long new_dma_reserve); extern void memmap_init_zone(unsigned long, int, unsigned long, unsigned long); extern void setup_per_zone_pages_min(void); extern void mem_init(void); @@ -1072,7 +1131,7 @@ extern int randomize_va_space; #endif -const char *arch_vma_name(struct vm_area_struct *vma); +__attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma); #endif /* __KERNEL__ */ #endif /* _LINUX_MM_H */
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h new file mode 100644 index 0000000..c3852fd --- /dev/null +++ b/include/linux/mm_types.h
@@ -0,0 +1,67 @@ +#ifndef _LINUX_MM_TYPES_H +#define _LINUX_MM_TYPES_H + +#include <linux/types.h> +#include <linux/threads.h> +#include <linux/list.h> +#include <linux/spinlock.h> + +struct address_space; + +/* + * Each physical page in the system has a struct page associated with + * it to keep track of whatever it is we are using the page for at the + * moment. Note that we have no way to track which tasks are using + * a page, though if it is a pagecache page, rmap structures can tell us + * who is mapping it. + */ +struct page { + unsigned long flags; /* Atomic flags, some possibly + * updated asynchronously */ + atomic_t _count; /* Usage count, see below. */ + atomic_t _mapcount; /* Count of ptes mapped in mms, + * to show when page is mapped + * & limit reverse map searches. + */ + union { + struct { + unsigned long private; /* Mapping-private opaque data: + * usually used for buffer_heads + * if PagePrivate set; used for + * swp_entry_t if PageSwapCache; + * indicates order in the buddy + * system if PG_buddy is set. + */ + struct address_space *mapping; /* If low bit clear, points to + * inode address_space, or NULL. + * If page mapped as anonymous + * memory, low bit is set, and + * it points to anon_vma object: + * see PAGE_MAPPING_ANON below. + */ + }; +#if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS + spinlock_t ptl; +#endif + }; + pgoff_t index; /* Our offset within mapping. */ + struct list_head lru; /* Pageout list, eg. active_list + * protected by zone->lru_lock ! + */ + /* + * On machines where all RAM is mapped into kernel address space, + * we can simply calculate the virtual address. On machines with + * highmem some memory is mapped into kernel virtual memory + * dynamically, so we need a place to store that address. + * Note that this field could be 16 bits on x86 ... ;) + * + * Architectures with slow multiplication can define + * WANT_PAGE_VIRTUAL in asm/page.h + */ +#if defined(WANT_PAGE_VIRTUAL) + void *virtual; /* Kernel virtual address (NULL if + not kmapped, ie. highmem) */ +#endif /* WANT_PAGE_VIRTUAL */ +}; + +#endif /* _LINUX_MM_TYPES_H */
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index f45163c..59855b8 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h
@@ -51,12 +51,14 @@ NR_FILE_MAPPED, /* pagecache pages mapped into pagetables. only modified from process context */ NR_FILE_PAGES, - NR_SLAB, /* Pages used by slab allocator */ + NR_SLAB_RECLAIMABLE, + NR_SLAB_UNRECLAIMABLE, NR_PAGETABLE, /* used for pagetables */ NR_FILE_DIRTY, NR_WRITEBACK, NR_UNSTABLE_NFS, /* NFS unstable pages */ NR_BOUNCE, + NR_VMSCAN_WRITE, #ifdef CONFIG_NUMA NUMA_HIT, /* allocated in intended node */ NUMA_MISS, /* allocated in non intended node */ @@ -88,53 +90,68 @@ #define zone_pcp(__z, __cpu) (&(__z)->pageset[(__cpu)]) #endif -#define ZONE_DMA 0 -#define ZONE_DMA32 1 -#define ZONE_NORMAL 2 -#define ZONE_HIGHMEM 3 - -#define MAX_NR_ZONES 4 /* Sync this with ZONES_SHIFT */ -#define ZONES_SHIFT 2 /* ceil(log2(MAX_NR_ZONES)) */ - +enum zone_type { + /* + * ZONE_DMA is used when there are devices that are not able + * to do DMA to all of addressable memory (ZONE_NORMAL). Then we + * carve out the portion of memory that is needed for these devices. + * The range is arch specific. + * + * Some examples + * + * Architecture Limit + * --------------------------- + * parisc, ia64, sparc <4G + * s390 <2G + * arm26 <48M + * arm Various + * alpha Unlimited or 0-16MB. + * + * i386, x86_64 and multiple other arches + * <16M. + */ + ZONE_DMA, +#ifdef CONFIG_ZONE_DMA32 + /* + * x86_64 needs two ZONE_DMAs because it supports devices that are + * only able to do DMA to the lower 16M but also 32 bit devices that + * can only do DMA areas below 4G. + */ + ZONE_DMA32, +#endif + /* + * Normal addressable memory is in ZONE_NORMAL. DMA operations can be + * performed on pages in ZONE_NORMAL if the DMA devices support + * transfers to all addressable memory. + */ + ZONE_NORMAL, +#ifdef CONFIG_HIGHMEM + /* + * A memory area that is only addressable by the kernel through + * mapping portions into its own address space. This is for example + * used by i386 to allow the kernel to address the memory beyond + * 900MB. The kernel will set up special mappings (page + * table entries on i386) for each page that the kernel needs to + * access. + */ + ZONE_HIGHMEM, +#endif + MAX_NR_ZONES +}; /* * When a memory allocation must conform to specific limitations (such * as being suitable for DMA) the caller will pass in hints to the * allocator in the gfp_mask, in the zone modifier bits. These bits * are used to select a priority ordered list of memory zones which - * match the requested limits. GFP_ZONEMASK defines which bits within - * the gfp_mask should be considered as zone modifiers. Each valid - * combination of the zone modifier bits has a corresponding list - * of zones (in node_zonelists). Thus for two zone modifiers there - * will be a maximum of 4 (2 ** 2) zonelists, for 3 modifiers there will - * be 8 (2 ** 3) zonelists. GFP_ZONETYPES defines the number of possible - * combinations of zone modifiers in "zone modifier space". - * - * As an optimisation any zone modifier bits which are only valid when - * no other zone modifier bits are set (loners) should be placed in - * the highest order bits of this field. This allows us to reduce the - * extent of the zonelists thus saving space. For example in the case - * of three zone modifier bits, we could require up to eight zonelists. - * If the left most zone modifier is a "loner" then the highest valid - * zonelist would be four allowing us to allocate only five zonelists. - * Use the first form for GFP_ZONETYPES when the left most bit is not - * a "loner", otherwise use the second. - * - * NOTE! Make sure this matches the zones in <linux/gfp.h> + * match the requested limits. See gfp_zone() in include/linux/gfp.h */ -#define GFP_ZONEMASK 0x07 -/* #define GFP_ZONETYPES (GFP_ZONEMASK + 1) */ /* Non-loner */ -#define GFP_ZONETYPES ((GFP_ZONEMASK + 1) / 2 + 1) /* Loner */ -/* - * On machines where it is needed (eg PCs) we divide physical memory - * into multiple physical zones. On a 32bit PC we have 4 zones: - * - * ZONE_DMA < 16 MB ISA DMA capable memory - * ZONE_DMA32 0 MB Empty - * ZONE_NORMAL 16-896 MB direct mapped by the kernel - * ZONE_HIGHMEM > 896 MB only page cache and user processes - */ +#if !defined(CONFIG_ZONE_DMA32) && !defined(CONFIG_HIGHMEM) +#define ZONES_SHIFT 1 +#else +#define ZONES_SHIFT 2 +#endif struct zone { /* Fields commonly accessed by the page allocator */ @@ -151,10 +168,12 @@ unsigned long lowmem_reserve[MAX_NR_ZONES]; #ifdef CONFIG_NUMA + int node; /* * zone reclaim becomes active if more unmapped pages exist. */ - unsigned long min_unmapped_ratio; + unsigned long min_unmapped_pages; + unsigned long min_slab_pages; struct per_cpu_pageset *pageset[NR_CPUS]; #else struct per_cpu_pageset pageset[NR_CPUS]; @@ -266,7 +285,6 @@ char *name; } ____cacheline_internodealigned_in_smp; - /* * The "priority" of VM scanning is how much of the queues we will scan in one * go. A value of 12 for DEF_PRIORITY implies that we will scan 1/4096th of the @@ -289,6 +307,18 @@ struct zone *zones[MAX_NUMNODES * MAX_NR_ZONES + 1]; // NULL delimited }; +#ifdef CONFIG_ARCH_POPULATES_NODE_MAP +struct node_active_region { + unsigned long start_pfn; + unsigned long end_pfn; + int nid; +}; +#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ + +#ifndef CONFIG_DISCONTIGMEM +/* The array of struct pages - for discontigmem use pgdat->lmem_map */ +extern struct page *mem_map; +#endif /* * The pg_data_t structure is used in machines with CONFIG_DISCONTIGMEM @@ -304,7 +334,7 @@ struct bootmem_data; typedef struct pglist_data { struct zone node_zones[MAX_NR_ZONES]; - struct zonelist node_zonelists[GFP_ZONETYPES]; + struct zonelist node_zonelists[MAX_NR_ZONES]; int nr_zones; #ifdef CONFIG_FLAT_NODE_MEM_MAP struct page *node_mem_map; @@ -373,12 +403,16 @@ return (!!zone->present_pages); } -static inline int is_highmem_idx(int idx) +static inline int is_highmem_idx(enum zone_type idx) { +#ifdef CONFIG_HIGHMEM return (idx == ZONE_HIGHMEM); +#else + return 0; +#endif } -static inline int is_normal_idx(int idx) +static inline int is_normal_idx(enum zone_type idx) { return (idx == ZONE_NORMAL); } @@ -391,7 +425,11 @@ */ static inline int is_highmem(struct zone *zone) { +#ifdef CONFIG_HIGHMEM return zone == zone->zone_pgdat->node_zones + ZONE_HIGHMEM; +#else + return 0; +#endif } static inline int is_normal(struct zone *zone) @@ -401,7 +439,11 @@ static inline int is_dma32(struct zone *zone) { +#ifdef CONFIG_ZONE_DMA32 return zone == zone->zone_pgdat->node_zones + ZONE_DMA32; +#else + return 0; +#endif } static inline int is_dma(struct zone *zone) @@ -421,6 +463,8 @@ void __user *, size_t *, loff_t *); int sysctl_min_unmapped_ratio_sysctl_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *); +int sysctl_min_slab_ratio_sysctl_handler(struct ctl_table *, int, + struct file *, void __user *, size_t *, loff_t *); #include <linux/topology.h> /* Returns the number of the current Node. */ @@ -488,7 +532,8 @@ #endif -#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID +#if !defined(CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID) && \ + !defined(CONFIG_ARCH_POPULATES_NODE_MAP) #define early_pfn_to_nid(nid) (0UL) #endif
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index f7ca0b0..e0c393c 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h
@@ -308,4 +308,16 @@ kernel_ulong_t driver_info; }; +/* EISA */ + +#define EISA_SIG_LEN 8 + +/* The EISA signature, in ASCII form, null terminated */ +struct eisa_device_id { + char sig[EISA_SIG_LEN]; + kernel_ulong_t driver_data; +}; + +#define EISA_DEVICE_MODALIAS_FMT "eisa:s%s" + #endif /* LINUX_MOD_DEVICETABLE_H */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 4328912..13d6d4e 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h
@@ -334,7 +334,6 @@ struct net_device_stats* (*get_stats)(struct net_device *dev); - struct iw_statistics* (*get_wireless_stats)(struct net_device *dev); /* List of functions to handle Wireless Extensions (instead of ioctl). * See <net/iw_handler.h> for details. Jean II */ @@ -1016,7 +1015,8 @@ } /* On bonding slaves other than the currently active slave, suppress - * duplicates except for 802.3ad ETH_P_SLOW and alb non-mcast/bcast. + * duplicates except for 802.3ad ETH_P_SLOW, alb non-mcast/bcast, and + * ARP on active-backup slaves with arp_validate enabled. */ static inline int skb_bond_should_drop(struct sk_buff *skb) { @@ -1025,6 +1025,10 @@ if (master && (dev->priv_flags & IFF_SLAVE_INACTIVE)) { + if ((dev->priv_flags & IFF_SLAVE_NEEDARP) && + skb->protocol == __constant_htons(ETH_P_ARP)) + return 0; + if (master->priv_flags & IFF_MASTER_ALB) { if (skb->pkt_type != PACKET_BROADCAST && skb->pkt_type != PACKET_MULTICAST)
diff --git a/include/linux/netfilter/Kbuild b/include/linux/netfilter/Kbuild index 9a285ce..312bd2f 100644 --- a/include/linux/netfilter/Kbuild +++ b/include/linux/netfilter/Kbuild
@@ -10,6 +10,8 @@ header-y += xt_CONNMARK.h header-y += xt_conntrack.h header-y += xt_dccp.h +header-y += xt_dscp.h +header-y += xt_DSCP.h header-y += xt_esp.h header-y += xt_helper.h header-y += xt_length.h
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 36f5bcf..98c9b9f 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h
@@ -315,10 +315,6 @@ extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx); extern void put_nfs_open_context(struct nfs_open_context *ctx); extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode); -extern struct vfsmount *nfs_do_submount(const struct vfsmount *mnt_parent, - const struct dentry *dentry, - struct nfs_fh *fh, - struct nfs_fattr *fattr); /* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */ extern u32 root_nfs_parse_addr(char *name); /*__init*/
diff --git a/include/linux/nfsd/nfsfh.h b/include/linux/nfsd/nfsfh.h index f9edcd2..31a3cb6 100644 --- a/include/linux/nfsd/nfsfh.h +++ b/include/linux/nfsd/nfsfh.h
@@ -269,14 +269,8 @@ fhp->fh_post_uid = inode->i_uid; fhp->fh_post_gid = inode->i_gid; fhp->fh_post_size = inode->i_size; - if (inode->i_blksize) { - fhp->fh_post_blksize = inode->i_blksize; - fhp->fh_post_blocks = inode->i_blocks; - } else { - fhp->fh_post_blksize = BLOCK_SIZE; - /* how much do we care for accuracy with MinixFS? */ - fhp->fh_post_blocks = (inode->i_size+511) >> 9; - } + fhp->fh_post_blksize = BLOCK_SIZE; + fhp->fh_post_blocks = inode->i_blocks; fhp->fh_post_rdev[0] = htonl((u32)imajor(inode)); fhp->fh_post_rdev[1] = htonl((u32)iminor(inode)); fhp->fh_post_atime = inode->i_atime;
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 5748642..9d7921d 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h
@@ -13,24 +13,25 @@ * PG_reserved is set for special pages, which can never be swapped out. Some * of them might not even exist (eg empty_bad_page)... * - * The PG_private bitflag is set if page->private contains a valid value. + * The PG_private bitflag is set on pagecache pages if they contain filesystem + * specific data (which is normally at page->private). It can be used by + * private allocations for its own usage. * - * During disk I/O, PG_locked is used. This bit is set before I/O and - * reset when I/O completes. page_waitqueue(page) is a wait queue of all tasks - * waiting for the I/O on this page to complete. + * During initiation of disk I/O, PG_locked is set. This bit is set before I/O + * and cleared when writeback _starts_ or when read _completes_. PG_writeback + * is set before writeback starts and cleared when it finishes. + * + * PG_locked also pins a page in pagecache, and blocks truncation of the file + * while it is held. + * + * page_waitqueue(page) is a wait queue of all tasks waiting for the page + * to become unlocked. * * PG_uptodate tells whether the page's contents is valid. When a read * completes, the page becomes uptodate, unless a disk I/O error happened. * - * For choosing which pages to swap out, inode pages carry a PG_referenced bit, - * which is set any time the system accesses that page through the (mapping, - * index) hash table. This referenced bit, together with the referenced bit - * in the page tables, is used to manipulate page->age and move the page across - * the active, inactive_dirty and inactive_clean lists. - * - * Note that the referenced bit, the page->lru list_head and the active, - * inactive_dirty and inactive_clean lists are protected by the - * zone->lru_lock, and *NOT* by the usual PG_locked bit! + * PG_referenced, PG_reclaim are used for page reclaim for anonymous and + * file-backed pagecache (see mm/vmscan.c). * * PG_error is set to indicate that an I/O error occurred on this page. * @@ -42,6 +43,10 @@ * space, they need to be kmapped separately for doing IO on the pages. The * struct page (these bits with information) are always mapped into kernel * address space... + * + * PG_buddy is set to indicate that the page is free and in the buddy system + * (see mm/page_alloc.c). + * */ /* @@ -74,7 +79,7 @@ #define PG_checked 8 /* kill me in 2.5.<early>. */ #define PG_arch_1 9 #define PG_reserved 10 -#define PG_private 11 /* Has something at ->private */ +#define PG_private 11 /* If pagecache, has fs-private data */ #define PG_writeback 12 /* Page is under writeback */ #define PG_nosave 13 /* Used for system suspend/resume */ @@ -83,7 +88,7 @@ #define PG_mappedtodisk 16 /* Has blocks allocated on-disk */ #define PG_reclaim 17 /* To be reclaimed asap */ -#define PG_nosave_free 18 /* Free, should not be written */ +#define PG_nosave_free 18 /* Used for system suspend/resume */ #define PG_buddy 19 /* Page is free, on buddy lists */
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 0a2f5d2..64f9509 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h
@@ -130,14 +130,29 @@ } extern void FASTCALL(__lock_page(struct page *page)); +extern void FASTCALL(__lock_page_nosync(struct page *page)); extern void FASTCALL(unlock_page(struct page *page)); +/* + * lock_page may only be called if we have the page's inode pinned. + */ static inline void lock_page(struct page *page) { might_sleep(); if (TestSetPageLocked(page)) __lock_page(page); } + +/* + * lock_page_nosync should only be used if we can't pin the page's inode. + * Doesn't play quite so well with block device plugging. + */ +static inline void lock_page_nosync(struct page *page) +{ + might_sleep(); + if (TestSetPageLocked(page)) + __lock_page_nosync(page); +} /* * This is exported only for wait_on_page_locked/wait_on_page_writeback.
diff --git a/include/linux/pci.h b/include/linux/pci.h index 8565b81..5c3a417 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h
@@ -49,6 +49,7 @@ #include <linux/types.h> #include <linux/ioport.h> #include <linux/list.h> +#include <linux/compiler.h> #include <linux/errno.h> #include <linux/device.h> @@ -346,6 +347,8 @@ int (*probe) (struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */ void (*remove) (struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ int (*suspend) (struct pci_dev *dev, pm_message_t state); /* Device suspended */ + int (*suspend_late) (struct pci_dev *dev, pm_message_t state); + int (*resume_early) (struct pci_dev *dev); int (*resume) (struct pci_dev *dev); /* Device woken up */ int (*enable_wake) (struct pci_dev *dev, pci_power_t state, int enable); /* Enable wake event */ void (*shutdown) (struct pci_dev *dev); @@ -353,6 +356,8 @@ struct pci_error_handlers *err_handler; struct device_driver driver; struct pci_dynids dynids; + + int multithread_probe; }; #define to_pci_driver(drv) container_of(drv,struct pci_driver, driver) @@ -401,7 +406,7 @@ extern struct list_head pci_devices; /* list of all devices */ void pcibios_fixup_bus(struct pci_bus *); -int pcibios_enable_device(struct pci_dev *, int mask); +int __must_check pcibios_enable_device(struct pci_dev *, int mask); char *pcibios_setup (char *str); /* Used only when drivers/pci/setup.c is used */ @@ -428,7 +433,7 @@ struct pci_dev * pci_scan_single_device(struct pci_bus *bus, int devfn); void pci_device_add(struct pci_dev *dev, struct pci_bus *bus); unsigned int pci_scan_child_bus(struct pci_bus *bus); -void pci_bus_add_device(struct pci_dev *dev); +int __must_check pci_bus_add_device(struct pci_dev *dev); void pci_read_bridge_bases(struct pci_bus *child); struct resource *pci_find_parent_resource(const struct pci_dev *dev, struct resource *res); int pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge); @@ -436,6 +441,7 @@ extern void pci_dev_put(struct pci_dev *dev); extern void pci_remove_bus(struct pci_bus *b); extern void pci_remove_bus_device(struct pci_dev *dev); +extern void pci_stop_bus_device(struct pci_dev *dev); void pci_setup_cardbus(struct pci_bus *bus); /* Generic PCI functions exported to card drivers */ @@ -488,19 +494,19 @@ return pci_bus_write_config_dword (dev->bus, dev->devfn, where, val); } -int pci_enable_device(struct pci_dev *dev); -int pci_enable_device_bars(struct pci_dev *dev, int mask); +int __must_check pci_enable_device(struct pci_dev *dev); +int __must_check pci_enable_device_bars(struct pci_dev *dev, int mask); void pci_disable_device(struct pci_dev *dev); void pci_set_master(struct pci_dev *dev); #define HAVE_PCI_SET_MWI -int pci_set_mwi(struct pci_dev *dev); +int __must_check pci_set_mwi(struct pci_dev *dev); void pci_clear_mwi(struct pci_dev *dev); void pci_intx(struct pci_dev *dev, int enable); int pci_set_dma_mask(struct pci_dev *dev, u64 mask); int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask); void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno); -int pci_assign_resource(struct pci_dev *dev, int i); -int pci_assign_resource_fixed(struct pci_dev *dev, int i); +int __must_check pci_assign_resource(struct pci_dev *dev, int i); +int __must_check pci_assign_resource_fixed(struct pci_dev *dev, int i); void pci_restore_bars(struct pci_dev *dev); /* ROM control related routines */ @@ -526,23 +532,24 @@ void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *), int (*)(struct pci_dev *, u8, u8)); #define HAVE_PCI_REQ_REGIONS 2 -int pci_request_regions(struct pci_dev *, const char *); +int __must_check pci_request_regions(struct pci_dev *, const char *); void pci_release_regions(struct pci_dev *); -int pci_request_region(struct pci_dev *, int, const char *); +int __must_check pci_request_region(struct pci_dev *, int, const char *); void pci_release_region(struct pci_dev *, int); /* drivers/pci/bus.c */ -int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, - resource_size_t size, resource_size_t align, - resource_size_t min, unsigned int type_mask, - void (*alignf)(void *, struct resource *, - resource_size_t, resource_size_t), - void *alignf_data); +int __must_check pci_bus_alloc_resource(struct pci_bus *bus, + struct resource *res, resource_size_t size, + resource_size_t align, resource_size_t min, + unsigned int type_mask, + void (*alignf)(void *, struct resource *, + resource_size_t, resource_size_t), + void *alignf_data); void pci_enable_bridges(struct pci_bus *bus); /* Proper probing supporting hot-pluggable devices */ -int __pci_register_driver(struct pci_driver *, struct module *); -static inline int pci_register_driver(struct pci_driver *driver) +int __must_check __pci_register_driver(struct pci_driver *, struct module *); +static inline int __must_check pci_register_driver(struct pci_driver *driver) { return __pci_register_driver(driver, THIS_MODULE); }
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 6a1e098..ab032ce 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h
@@ -1411,6 +1411,7 @@ #define PCI_DEVICE_ID_SERVERWORKS_LE 0x0009 #define PCI_DEVICE_ID_SERVERWORKS_GCNB_LE 0x0017 #define PCI_DEVICE_ID_SERVERWORKS_EPB 0x0103 +#define PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE 0x0132 #define PCI_DEVICE_ID_SERVERWORKS_OSB4 0x0200 #define PCI_DEVICE_ID_SERVERWORKS_CSB5 0x0201 #define PCI_DEVICE_ID_SERVERWORKS_CSB6 0x0203 @@ -1482,9 +1483,6 @@ #define PCI_DEVICE_ID_MARVELL_GT64260 0x6430 #define PCI_DEVICE_ID_MARVELL_MV64360 0x6460 #define PCI_DEVICE_ID_MARVELL_MV64460 0x6480 -#define PCI_DEVICE_ID_MARVELL_GT96100 0x9652 -#define PCI_DEVICE_ID_MARVELL_GT96100A 0x9653 - #define PCI_VENDOR_ID_V3 0x11b0 #define PCI_DEVICE_ID_V3_V960 0x0001
diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h index 96930cb..7d0e26c 100644 --- a/include/linux/pci_regs.h +++ b/include/linux/pci_regs.h
@@ -196,7 +196,7 @@ #define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */ #define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */ #define PCI_CAP_ID_PCIX 0x07 /* PCI-X */ -#define PCI_CAP_ID_HT_IRQCONF 0x08 /* HyperTransport IRQ Configuration */ +#define PCI_CAP_ID_HT 0x08 /* HyperTransport */ #define PCI_CAP_ID_VNDR 0x09 /* Vendor specific capability */ #define PCI_CAP_ID_SHPC 0x0C /* PCI Standard Hot-Plug Controller */ #define PCI_CAP_ID_EXP 0x10 /* PCI Express */
diff --git a/include/linux/pcieport_if.h b/include/linux/pcieport_if.h index b44e01a..6cd91e3 100644 --- a/include/linux/pcieport_if.h +++ b/include/linux/pcieport_if.h
@@ -62,6 +62,12 @@ int (*suspend) (struct pcie_device *dev, pm_message_t state); int (*resume) (struct pcie_device *dev); + /* Service Error Recovery Handler */ + struct pci_error_handlers *err_handler; + + /* Link Reset Capability - AER service driver specific */ + pci_ers_result_t (*reset_link) (struct pci_dev *dev); + const struct pcie_port_service_id *id_table; struct device_driver driver; };
diff --git a/include/linux/percpu.h b/include/linux/percpu.h index cb9039a..3835a96 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h
@@ -1,9 +1,12 @@ #ifndef __LINUX_PERCPU_H #define __LINUX_PERCPU_H + #include <linux/spinlock.h> /* For preempt_disable() */ #include <linux/slab.h> /* For kmalloc() */ #include <linux/smp.h> #include <linux/string.h> /* For memset() */ +#include <linux/cpumask.h> + #include <asm/percpu.h> /* Enough to cover all DEFINE_PER_CPUs in kernel, including modules. */ @@ -11,8 +14,14 @@ #define PERCPU_ENOUGH_ROOM 32768 #endif -/* Must be an lvalue. */ -#define get_cpu_var(var) (*({ preempt_disable(); &__get_cpu_var(var); })) +/* + * Must be an lvalue. Since @var must be a simple identifier, + * we force a syntax error here if it isn't. + */ +#define get_cpu_var(var) (*({ \ + extern int simple_indentifier_##var(void); \ + preempt_disable(); \ + &__get_cpu_var(var); })) #define put_cpu_var(var) preempt_enable() #ifdef CONFIG_SMP @@ -21,39 +30,77 @@ void *ptrs[NR_CPUS]; }; +#define __percpu_disguise(pdata) (struct percpu_data *)~(unsigned long)(pdata) /* - * Use this to get to a cpu's version of the per-cpu object allocated using - * alloc_percpu. Non-atomic access to the current CPU's version should + * Use this to get to a cpu's version of the per-cpu object dynamically + * allocated. Non-atomic access to the current CPU's version should * probably be combined with get_cpu()/put_cpu(). */ -#define per_cpu_ptr(ptr, cpu) \ -({ \ - struct percpu_data *__p = (struct percpu_data *)~(unsigned long)(ptr); \ - (__typeof__(ptr))__p->ptrs[(cpu)]; \ +#define percpu_ptr(ptr, cpu) \ +({ \ + struct percpu_data *__p = __percpu_disguise(ptr); \ + (__typeof__(ptr))__p->ptrs[(cpu)]; \ }) -extern void *__alloc_percpu(size_t size); -extern void free_percpu(const void *); +extern void *percpu_populate(void *__pdata, size_t size, gfp_t gfp, int cpu); +extern void percpu_depopulate(void *__pdata, int cpu); +extern int __percpu_populate_mask(void *__pdata, size_t size, gfp_t gfp, + cpumask_t *mask); +extern void __percpu_depopulate_mask(void *__pdata, cpumask_t *mask); +extern void *__percpu_alloc_mask(size_t size, gfp_t gfp, cpumask_t *mask); +extern void percpu_free(void *__pdata); #else /* CONFIG_SMP */ -#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); }) +#define percpu_ptr(ptr, cpu) ({ (void)(cpu); (ptr); }) -static inline void *__alloc_percpu(size_t size) +static inline void percpu_depopulate(void *__pdata, int cpu) { - void *ret = kmalloc(size, GFP_KERNEL); - if (ret) - memset(ret, 0, size); - return ret; } -static inline void free_percpu(const void *ptr) -{ - kfree(ptr); + +static inline void __percpu_depopulate_mask(void *__pdata, cpumask_t *mask) +{ +} + +static inline void *percpu_populate(void *__pdata, size_t size, gfp_t gfp, + int cpu) +{ + return percpu_ptr(__pdata, cpu); +} + +static inline int __percpu_populate_mask(void *__pdata, size_t size, gfp_t gfp, + cpumask_t *mask) +{ + return 0; +} + +static inline void *__percpu_alloc_mask(size_t size, gfp_t gfp, cpumask_t *mask) +{ + return kzalloc(size, gfp); +} + +static inline void percpu_free(void *__pdata) +{ + kfree(__pdata); } #endif /* CONFIG_SMP */ -/* Simple wrapper for the common case: zeros memory. */ -#define alloc_percpu(type) ((type *)(__alloc_percpu(sizeof(type)))) +#define percpu_populate_mask(__pdata, size, gfp, mask) \ + __percpu_populate_mask((__pdata), (size), (gfp), &(mask)) +#define percpu_depopulate_mask(__pdata, mask) \ + __percpu_depopulate_mask((__pdata), &(mask)) +#define percpu_alloc_mask(size, gfp, mask) \ + __percpu_alloc_mask((size), (gfp), &(mask)) + +#define percpu_alloc(size, gfp) percpu_alloc_mask((size), (gfp), cpu_online_map) + +/* (legacy) interface for use without CPU hotplug handling */ + +#define __alloc_percpu(size) percpu_alloc_mask((size), GFP_KERNEL, \ + cpu_possible_map) +#define alloc_percpu(type) (type *)__alloc_percpu(sizeof(type)) +#define free_percpu(ptr) percpu_free((ptr)) +#define per_cpu_ptr(ptr, cpu) percpu_ptr((ptr), (cpu)) #endif /* __LINUX_PERCPU_H */
diff --git a/include/linux/pid.h b/include/linux/pid.h index 29960b0..93da7e2 100644 --- a/include/linux/pid.h +++ b/include/linux/pid.h
@@ -76,6 +76,8 @@ enum pid_type type, int nr)); extern void FASTCALL(detach_pid(struct task_struct *task, enum pid_type)); +extern void FASTCALL(transfer_pid(struct task_struct *old, + struct task_struct *new, enum pid_type)); /* * look up a PID in the hash table. Must be called with the tasklist_lock
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 782090c..29cd6de 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h
@@ -49,6 +49,8 @@ int (*remove)(struct platform_device *); void (*shutdown)(struct platform_device *); int (*suspend)(struct platform_device *, pm_message_t state); + int (*suspend_late)(struct platform_device *, pm_message_t state); + int (*resume_early)(struct platform_device *); int (*resume)(struct platform_device *); struct device_driver driver; };
diff --git a/include/linux/pm.h b/include/linux/pm.h index 658c1b9..6b27e07 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h
@@ -142,29 +142,61 @@ } pm_message_t; /* - * There are 4 important states driver can be in: - * ON -- driver is working - * FREEZE -- stop operations and apply whatever policy is applicable to a - * suspended driver of that class, freeze queues for block like IDE - * does, drop packets for ethernet, etc... stop DMA engine too etc... - * so a consistent image can be saved; but do not power any hardware - * down. - * SUSPEND - like FREEZE, but hardware is doing as much powersaving as - * possible. Roughly pci D3. + * Several driver power state transitions are externally visible, affecting + * the state of pending I/O queues and (for drivers that touch hardware) + * interrupts, wakeups, DMA, and other hardware state. There may also be + * internal transitions to various low power modes, which are transparent + * to the rest of the driver stack (such as a driver that's ON gating off + * clocks which are not in active use). * - * Unfortunately, current drivers only recognize numeric values 0 (ON) and 3 - * (SUSPEND). We'll need to fix the drivers. So yes, putting 3 to all different - * defines is intentional, and will go away as soon as drivers are fixed. Also - * note that typedef is neccessary, we'll probably want to switch to - * typedef struct pm_message_t { int event; int flags; } pm_message_t - * or something similar soon. + * One transition is triggered by resume(), after a suspend() call; the + * message is implicit: + * + * ON Driver starts working again, responding to hardware events + * and software requests. The hardware may have gone through + * a power-off reset, or it may have maintained state from the + * previous suspend() which the driver will rely on while + * resuming. On most platforms, there are no restrictions on + * availability of resources like clocks during resume(). + * + * Other transitions are triggered by messages sent using suspend(). All + * these transitions quiesce the driver, so that I/O queues are inactive. + * That commonly entails turning off IRQs and DMA; there may be rules + * about how to quiesce that are specific to the bus or the device's type. + * (For example, network drivers mark the link state.) Other details may + * differ according to the message: + * + * SUSPEND Quiesce, enter a low power device state appropriate for + * the upcoming system state (such as PCI_D3hot), and enable + * wakeup events as appropriate. + * + * FREEZE Quiesce operations so that a consistent image can be saved; + * but do NOT otherwise enter a low power device state, and do + * NOT emit system wakeup events. + * + * PRETHAW Quiesce as if for FREEZE; additionally, prepare for restoring + * the system from a snapshot taken after an earlier FREEZE. + * Some drivers will need to reset their hardware state instead + * of preserving it, to ensure that it's never mistaken for the + * state which that earlier snapshot had set up. + * + * A minimally power-aware driver treats all messages as SUSPEND, fully + * reinitializes its device during resume() -- whether or not it was reset + * during the suspend/resume cycle -- and can't issue wakeup events. + * + * More power-aware drivers may also use low power states at runtime as + * well as during system sleep states like PM_SUSPEND_STANDBY. They may + * be able to use wakeup events to exit from runtime low-power states, + * or from system low-power states such as standby or suspend-to-RAM. */ #define PM_EVENT_ON 0 #define PM_EVENT_FREEZE 1 #define PM_EVENT_SUSPEND 2 +#define PM_EVENT_PRETHAW 3 #define PMSG_FREEZE ((struct pm_message){ .event = PM_EVENT_FREEZE, }) +#define PMSG_PRETHAW ((struct pm_message){ .event = PM_EVENT_PRETHAW, }) #define PMSG_SUSPEND ((struct pm_message){ .event = PM_EVENT_SUSPEND, }) #define PMSG_ON ((struct pm_message){ .event = PM_EVENT_ON, }) @@ -190,6 +222,7 @@ extern suspend_disk_method_t pm_disk_mode; extern int device_suspend(pm_message_t state); +extern int device_prepare_suspend(pm_message_t state); #define device_set_wakeup_enable(dev,val) \ ((dev)->power.should_wakeup = !!(val))
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 3435ca3..57f70bc 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h
@@ -268,7 +268,9 @@ struct proc_maps_private { struct pid *pid; struct task_struct *task; +#ifdef CONFIG_MMU struct vm_area_struct *tail_vma; +#endif }; #endif /* _LINUX_PROC_FS_H */
diff --git a/include/linux/resume-trace.h b/include/linux/resume-trace.h index a376bd4..81e9299 100644 --- a/include/linux/resume-trace.h +++ b/include/linux/resume-trace.h
@@ -3,21 +3,25 @@ #ifdef CONFIG_PM_TRACE +extern int pm_trace_enabled; + struct device; extern void set_trace_device(struct device *); extern void generate_resume_trace(void *tracedata, unsigned int user); #define TRACE_DEVICE(dev) set_trace_device(dev) -#define TRACE_RESUME(user) do { \ - void *tracedata; \ - asm volatile("movl $1f,%0\n" \ - ".section .tracedata,\"a\"\n" \ - "1:\t.word %c1\n" \ - "\t.long %c2\n" \ - ".previous" \ - :"=r" (tracedata) \ - : "i" (__LINE__), "i" (__FILE__)); \ - generate_resume_trace(tracedata, user); \ +#define TRACE_RESUME(user) do { \ + if (pm_trace_enabled) { \ + void *tracedata; \ + asm volatile("movl $1f,%0\n" \ + ".section .tracedata,\"a\"\n" \ + "1:\t.word %c1\n" \ + "\t.long %c2\n" \ + ".previous" \ + :"=r" (tracedata) \ + : "i" (__LINE__), "i" (__FILE__)); \ + generate_resume_trace(tracedata, user); \ + } \ } while (0) #else
diff --git a/include/linux/rmap.h b/include/linux/rmap.h index bf97b09..db2c1df 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h
@@ -103,6 +103,14 @@ */ unsigned long page_address_in_vma(struct page *, struct vm_area_struct *); +/* + * Cleans the PTEs of shared mappings. + * (and since clean PTEs should also be readonly, write protects them too) + * + * returns the number of cleaned PTEs. + */ +int page_mkclean(struct page *); + #else /* !CONFIG_MMU */ #define anon_vma_init() do {} while (0) @@ -112,6 +120,12 @@ #define page_referenced(page,l) TestClearPageReferenced(page) #define try_to_unmap(page, refs) SWAP_FAIL +static inline int page_mkclean(struct page *page) +{ + return 0; +} + + #endif /* CONFIG_MMU */ /*
diff --git a/include/linux/sched.h b/include/linux/sched.h index 34ed0d9..9d4aa7f 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h
@@ -819,6 +819,11 @@ unsigned did_exec:1; pid_t pid; pid_t tgid; + +#ifdef CONFIG_CC_STACKPROTECTOR + /* Canary value for the -fstack-protector gcc feature */ + unsigned long stack_canary; +#endif /* * pointers to (original) parent process, youngest child, younger sibling, * older sibling, respectively. (p->father can be replaced with @@ -865,6 +870,15 @@ struct key *thread_keyring; /* keyring private to this thread */ unsigned char jit_keyring; /* default keyring to attach requested keys to */ #endif + /* + * fpu_counter contains the number of consecutive context switches + * that the FPU is used. If this is over a threshold, the lazy fpu + * saving becomes unlazy to save the trap. This is an unsigned char + * so that after 256 times the counter wraps and the behavior turns + * lazy again; this to deal with bursty apps that only use FPU for + * a short time + */ + unsigned char fpu_counter; int oomkilladj; /* OOM kill score adjustment (bit shift). */ char comm[TASK_COMM_LEN]; /* executable name excluding path - access with [gs]et_task_comm (which lock
diff --git a/include/linux/selinux.h b/include/linux/selinux.h index aad4e39..d1b7ca6 100644 --- a/include/linux/selinux.h +++ b/include/linux/selinux.h
@@ -46,7 +46,7 @@ /** * selinux_audit_rule_match - determine if a context ID matches a rule. - * @ctxid: the context ID to check + * @sid: the context ID to check * @field: the field this rule refers to * @op: the operater the rule uses * @rule: pointer to the audit rule to check against @@ -55,7 +55,7 @@ * Returns 1 if the context id matches the rule, 0 if it does not, and * -errno on failure. */ -int selinux_audit_rule_match(u32 ctxid, u32 field, u32 op, +int selinux_audit_rule_match(u32 sid, u32 field, u32 op, struct selinux_audit_rule *rule, struct audit_context *actx); @@ -70,18 +70,8 @@ void selinux_audit_set_callback(int (*callback)(void)); /** - * selinux_task_ctxid - determine a context ID for a process. - * @tsk: the task object - * @ctxid: ID value returned via this - * - * On return, ctxid will contain an ID for the context. This value - * should only be used opaquely. - */ -void selinux_task_ctxid(struct task_struct *tsk, u32 *ctxid); - -/** - * selinux_ctxid_to_string - map a security context ID to a string - * @ctxid: security context ID to be converted. + * selinux_sid_to_string - map a security context ID to a string + * @sid: security context ID to be converted. * @ctx: address of context string to be returned * @ctxlen: length of returned context string. * @@ -89,7 +79,7 @@ * string will be allocated internally, and the caller must call * kfree() on it after use. */ -int selinux_ctxid_to_string(u32 ctxid, char **ctx, u32 *ctxlen); +int selinux_sid_to_string(u32 sid, char **ctx, u32 *ctxlen); /** * selinux_get_inode_sid - get the inode's security context ID @@ -154,7 +144,7 @@ return; } -static inline int selinux_audit_rule_match(u32 ctxid, u32 field, u32 op, +static inline int selinux_audit_rule_match(u32 sid, u32 field, u32 op, struct selinux_audit_rule *rule, struct audit_context *actx) { @@ -166,12 +156,7 @@ return; } -static inline void selinux_task_ctxid(struct task_struct *tsk, u32 *ctxid) -{ - *ctxid = 0; -} - -static inline int selinux_ctxid_to_string(u32 ctxid, char **ctx, u32 *ctxlen) +static inline int selinux_sid_to_string(u32 sid, char **ctx, u32 *ctxlen) { *ctx = NULL; *ctxlen = 0;
diff --git a/include/linux/slab.h b/include/linux/slab.h index 45ad55b..a96fd93 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h
@@ -60,14 +60,13 @@ extern kmem_cache_t *kmem_cache_create(const char *, size_t, size_t, unsigned long, void (*)(void *, kmem_cache_t *, unsigned long), void (*)(void *, kmem_cache_t *, unsigned long)); -extern int kmem_cache_destroy(kmem_cache_t *); +extern void kmem_cache_destroy(kmem_cache_t *); extern int kmem_cache_shrink(kmem_cache_t *); extern void *kmem_cache_alloc(kmem_cache_t *, gfp_t); extern void *kmem_cache_zalloc(struct kmem_cache *, gfp_t); extern void kmem_cache_free(kmem_cache_t *, void *); extern unsigned int kmem_cache_size(kmem_cache_t *); extern const char *kmem_cache_name(kmem_cache_t *); -extern kmem_cache_t *kmem_find_general_cachep(size_t size, gfp_t gfpflags); /* Size description struct for general caches. */ struct cache_sizes { @@ -203,7 +202,30 @@ #ifdef CONFIG_NUMA extern void *kmem_cache_alloc_node(kmem_cache_t *, gfp_t flags, int node); -extern void *kmalloc_node(size_t size, gfp_t flags, int node); +extern void *__kmalloc_node(size_t size, gfp_t flags, int node); + +static inline void *kmalloc_node(size_t size, gfp_t flags, int node) +{ + if (__builtin_constant_p(size)) { + int i = 0; +#define CACHE(x) \ + if (size <= x) \ + goto found; \ + else \ + i++; +#include "kmalloc_sizes.h" +#undef CACHE + { + extern void __you_cannot_kmalloc_that_much(void); + __you_cannot_kmalloc_that_much(); + } +found: + return kmem_cache_alloc_node((flags & GFP_DMA) ? + malloc_sizes[i].cs_dmacachep : + malloc_sizes[i].cs_cachep, flags, node); + } + return __kmalloc_node(size, flags, node); +} #else static inline void *kmem_cache_alloc_node(kmem_cache_t *cachep, gfp_t flags, int node) { @@ -223,12 +245,11 @@ /* SLOB allocator routines */ void kmem_cache_init(void); -struct kmem_cache *kmem_find_general_cachep(size_t, gfp_t gfpflags); struct kmem_cache *kmem_cache_create(const char *c, size_t, size_t, unsigned long, void (*)(void *, struct kmem_cache *, unsigned long), void (*)(void *, struct kmem_cache *, unsigned long)); -int kmem_cache_destroy(struct kmem_cache *c); +void kmem_cache_destroy(struct kmem_cache *c); void *kmem_cache_alloc(struct kmem_cache *c, gfp_t flags); void *kmem_cache_zalloc(struct kmem_cache *, gfp_t); void kmem_cache_free(struct kmem_cache *c, void *b); @@ -263,8 +284,6 @@ extern kmem_cache_t *sighand_cachep; extern kmem_cache_t *bio_cachep; -extern atomic_t slab_reclaim_pages; - #endif /* __KERNEL__ */ #endif /* _LINUX_SLAB_H */
diff --git a/include/linux/smb.h b/include/linux/smb.h index 6df3b15..f098dff 100644 --- a/include/linux/smb.h +++ b/include/linux/smb.h
@@ -89,7 +89,6 @@ struct timespec f_atime; struct timespec f_mtime; struct timespec f_ctime; - unsigned long f_blksize; unsigned long f_blocks; int f_unix; };
diff --git a/include/linux/smp.h b/include/linux/smp.h index 837e8bc..5164998 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h
@@ -53,6 +53,9 @@ */ int smp_call_function(void(*func)(void *info), void *info, int retry, int wait); +int smp_call_function_single(int cpuid, void (*func) (void *info), void *info, + int retry, int wait); + /* * Call a function on all processors */
diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h index 9cc81e5..50e2b01 100644 --- a/include/linux/stacktrace.h +++ b/include/linux/stacktrace.h
@@ -5,15 +5,16 @@ struct stack_trace { unsigned int nr_entries, max_entries; unsigned long *entries; + int skip; /* input argument: How many entries to skip */ + int all_contexts; /* input argument: if true do than one stack */ }; extern void save_stack_trace(struct stack_trace *trace, - struct task_struct *task, int all_contexts, - unsigned int skip); + struct task_struct *task); extern void print_stack_trace(struct stack_trace *trace, int spaces); #else -# define save_stack_trace(trace, task, all, skip) do { } while (0) +# define save_stack_trace(trace, task) do { } while (0) # define print_stack_trace(trace) do { } while (0) #endif
diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 96e31aa..b1237f1 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h
@@ -10,29 +10,11 @@ #include <linux/pm.h> /* page backup entry */ -typedef struct pbe { +struct pbe { unsigned long address; /* address of the copy */ unsigned long orig_address; /* original address of page */ struct pbe *next; -} suspend_pagedir_t; - -#define for_each_pbe(pbe, pblist) \ - for (pbe = pblist ; pbe ; pbe = pbe->next) - -#define PBES_PER_PAGE (PAGE_SIZE/sizeof(struct pbe)) -#define PB_PAGE_SKIP (PBES_PER_PAGE-1) - -#define for_each_pb_page(pbe, pblist) \ - for (pbe = pblist ; pbe ; pbe = (pbe+PB_PAGE_SKIP)->next) - - -#define SWAP_FILENAME_MAXLENGTH 32 - - -extern dev_t swsusp_resume_device; - -/* mm/vmscan.c */ -extern int shrink_mem(void); +}; /* mm/page_alloc.c */ extern void drain_local_pages(void); @@ -53,18 +35,10 @@ static inline int software_suspend(void) { printk("Warning: fake suspend called\n"); - return -EPERM; + return -ENOSYS; } #endif /* CONFIG_PM */ -#ifdef CONFIG_SUSPEND_SMP -extern void disable_nonboot_cpus(void); -extern void enable_nonboot_cpus(void); -#else -static inline void disable_nonboot_cpus(void) {} -static inline void enable_nonboot_cpus(void) {} -#endif - void save_processor_state(void); void restore_processor_state(void); struct saved_context;
diff --git a/include/linux/swap.h b/include/linux/swap.h index 5e59184..e7c36ba 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h
@@ -10,6 +10,10 @@ #include <asm/atomic.h> #include <asm/page.h> +struct notifier_block; + +struct bio; + #define SWAP_FLAG_PREFER 0x8000 /* set if swap priority specified */ #define SWAP_FLAG_PRIO_MASK 0x7fff #define SWAP_FLAG_PRIO_SHIFT 0 @@ -156,13 +160,14 @@ /* linux/mm/oom_kill.c */ extern void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask, int order); +extern int register_oom_notifier(struct notifier_block *nb); +extern int unregister_oom_notifier(struct notifier_block *nb); /* linux/mm/memory.c */ extern void swapin_readahead(swp_entry_t, unsigned long, struct vm_area_struct *); /* linux/mm/page_alloc.c */ extern unsigned long totalram_pages; -extern unsigned long totalhigh_pages; extern unsigned long totalreserve_pages; extern long nr_swap_pages; extern unsigned int nr_free_pages(void); @@ -190,6 +195,7 @@ #ifdef CONFIG_NUMA extern int zone_reclaim_mode; extern int sysctl_min_unmapped_ratio; +extern int sysctl_min_slab_ratio; extern int zone_reclaim(struct zone *, gfp_t, unsigned int); #else #define zone_reclaim_mode 0 @@ -212,7 +218,9 @@ /* linux/mm/page_io.c */ extern int swap_readpage(struct file *, struct page *); extern int swap_writepage(struct page *page, struct writeback_control *wbc); -extern int rw_swap_page_sync(int, swp_entry_t, struct page *); +extern int rw_swap_page_sync(int rw, swp_entry_t entry, struct page *page, + struct bio **bio_chain); +extern int end_swap_bio_read(struct bio *bio, unsigned int bytes_done, int err); /* linux/mm/swap_state.c */ extern struct address_space swapper_space;
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 008f04c..3f0f716 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h
@@ -53,6 +53,7 @@ struct compat_stat; struct compat_timeval; struct robust_list_head; +struct getcpu_cache; #include <linux/types.h> #include <linux/aio_abi.h> @@ -596,5 +597,6 @@ size_t __user *len_ptr); asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, size_t len); +asmlinkage long sys_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *cache); #endif
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index 736ed91..1b24bd4 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h
@@ -150,6 +150,8 @@ KERN_IA64_UNALIGNED=72, /* int: ia64 unaligned userland trap enable */ KERN_COMPAT_LOG=73, /* int: print compat layer messages */ KERN_MAX_LOCK_DEPTH=74, + KERN_NMI_WATCHDOG=75, /* int: enable/disable nmi watchdog */ + KERN_PANIC_ON_NMI=76, /* int: whether we will panic on an unrecovered */ }; @@ -191,6 +193,7 @@ VM_MIN_UNMAPPED=32, /* Set min percent of unmapped pages */ VM_PANIC_ON_OOM=33, /* panic at out-of-memory */ VM_VDSO_ENABLED=34, /* map VDSO into new processes? */ + VM_MIN_SLAB=35, /* Percent pages ignored by zone reclaim */ };
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 1ea5d3c..6d5c43d 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h
@@ -10,6 +10,7 @@ #ifndef _SYSFS_H_ #define _SYSFS_H_ +#include <linux/compiler.h> #include <asm/atomic.h> struct kobject; @@ -86,40 +87,44 @@ #ifdef CONFIG_SYSFS -extern int +extern int __must_check sysfs_create_dir(struct kobject *); extern void sysfs_remove_dir(struct kobject *); -extern int +extern int __must_check sysfs_rename_dir(struct kobject *, const char *new_name); -extern int +extern int __must_check sysfs_create_file(struct kobject *, const struct attribute *); -extern int +extern int __must_check sysfs_update_file(struct kobject *, const struct attribute *); -extern int +extern int __must_check sysfs_chmod_file(struct kobject *kobj, struct attribute *attr, mode_t mode); extern void sysfs_remove_file(struct kobject *, const struct attribute *); -extern int +extern int __must_check sysfs_create_link(struct kobject * kobj, struct kobject * target, const char * name); extern void sysfs_remove_link(struct kobject *, const char * name); -int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr); -int sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr); +int __must_check sysfs_create_bin_file(struct kobject *kobj, + struct bin_attribute *attr); +void sysfs_remove_bin_file(struct kobject *kobj, struct bin_attribute *attr); -int sysfs_create_group(struct kobject *, const struct attribute_group *); +int __must_check sysfs_create_group(struct kobject *, + const struct attribute_group *); void sysfs_remove_group(struct kobject *, const struct attribute_group *); void sysfs_notify(struct kobject * k, char *dir, char *attr); +extern int __must_check sysfs_init(void); + #else /* CONFIG_SYSFS */ static inline int sysfs_create_dir(struct kobject * k) @@ -191,6 +196,11 @@ { } +static inline int __must_check sysfs_init(void) +{ + return 0; +} + #endif /* CONFIG_SYSFS */ #endif /* _SYSFS_H_ */
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index 391e7ed..a48d7f1 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h
@@ -19,4 +19,26 @@ #endif /* ARCH_HAS_NOCACHE_UACCESS */ +/** + * probe_kernel_address(): safely attempt to read from a location + * @addr: address to read from - its type is type typeof(retval)* + * @retval: read into this variable + * + * Safely read from address @addr into variable @revtal. If a kernel fault + * happens, handle that and return -EFAULT. + * We ensure that the __get_user() is executed in atomic context so that + * do_page_fault() doesn't attempt to take mmap_sem. This makes + * probe_kernel_address() suitable for use within regions where the caller + * already holds mmap_sem, or other locks which nest inside mmap_sem. + */ +#define probe_kernel_address(addr, retval) \ + ({ \ + long ret; \ + \ + inc_preempt_count(); \ + ret = __get_user(retval, addr); \ + dec_preempt_count(); \ + ret; \ + }) + #endif /* __LINUX_UACCESS_H__ */
diff --git a/include/linux/usb.h b/include/linux/usb.h index d2bd0c8..0da15b0 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h
@@ -19,6 +19,7 @@ #include <linux/fs.h> /* for struct file_operations */ #include <linux/completion.h> /* for struct completion */ #include <linux/sched.h> /* for current && schedule_timeout */ +#include <linux/mutex.h> /* for struct mutex */ struct usb_device; struct usb_driver; @@ -102,8 +103,13 @@ * number from the USB core by calling usb_register_dev(). * @condition: binding state of the interface: not bound, binding * (in probe()), bound to a driver, or unbinding (in disconnect()) + * @is_active: flag set when the interface is bound and not suspended. + * @needs_remote_wakeup: flag set when the driver requires remote-wakeup + * capability during autosuspend. * @dev: driver model's view of this device * @class_dev: driver model's class view of this device. + * @pm_usage_cnt: PM usage counter for this interface; autosuspend is not + * allowed unless the counter is 0. * * USB device drivers attach to interfaces on a physical device. Each * interface encapsulates a single high level function, such as feeding @@ -142,8 +148,12 @@ int minor; /* minor number this interface is * bound to */ enum usb_interface_condition condition; /* state of binding */ + unsigned is_active:1; /* the interface is not suspended */ + unsigned needs_remote_wakeup:1; /* driver requires remote wakeup */ + struct device dev; /* interface specific device info */ struct class_device *class_dev; + int pm_usage_cnt; /* usage counter for autosuspend */ }; #define to_usb_interface(d) container_of(d, struct usb_interface, dev) #define interface_to_usbdev(intf) \ @@ -254,8 +264,6 @@ /* ----------------------------------------------------------------------- */ -struct usb_operations; - /* USB device number allocation bitmap */ struct usb_devmap { unsigned long devicemap[128 / (8*sizeof(unsigned long))]; @@ -268,6 +276,7 @@ struct device *controller; /* host/master side hardware */ int busnum; /* Bus number (in order of reg) */ char *bus_name; /* stable id (PCI slot_name etc) */ + u8 uses_dma; /* Does the host controller use DMA? */ u8 otg_port; /* 0, or number of OTG/HNP port */ unsigned is_b_host:1; /* true during some HNP roleswitches */ unsigned b_hnp_enable:1; /* OTG: did A-Host enable HNP? */ @@ -276,10 +285,8 @@ * round-robin allocation */ struct usb_devmap devmap; /* device address allocation map */ - struct usb_operations *op; /* Operations (specific to the HC) */ struct usb_device *root_hub; /* Root hub */ struct list_head bus_list; /* list of busses */ - void *hcpriv; /* Host Controller private data */ int bandwidth_allocated; /* on this bus: how much of the time * reserved for periodic (intr/iso) @@ -294,8 +301,6 @@ struct dentry *usbfs_dentry; /* usbfs dentry entry for the bus */ struct class_device *class_dev; /* class device for this bus */ - struct kref kref; /* reference counting for this bus */ - void (*release)(struct usb_bus *bus); #if defined(CONFIG_USB_MON) struct mon_bus *mon_bus; /* non-null when associated */ @@ -350,6 +355,7 @@ unsigned short bus_mA; /* Current available from the bus */ u8 portnum; /* Parent port number (origin 1) */ + u8 level; /* Number of USB hub ancestors */ int have_langid; /* whether string_langid is valid */ int string_langid; /* language ID for strings */ @@ -373,6 +379,15 @@ int maxchild; /* Number of ports if hub */ struct usb_device *children[USB_MAXCHILDREN]; + +#ifdef CONFIG_PM + struct work_struct autosuspend; /* for delayed autosuspends */ + struct mutex pm_mutex; /* protects PM operations */ + int pm_usage_cnt; /* usage counter for autosuspend */ + + unsigned auto_pm:1; /* autosuspend/resume in progress */ + unsigned do_remote_wakeup:1; /* remote wakeup should be enabled */ +#endif }; #define to_usb_device(d) container_of(d, struct usb_device, dev) @@ -384,7 +399,7 @@ #define usb_unlock_device(udev) up(&(udev)->dev.sem) #define usb_trylock_device(udev) down_trylock(&(udev)->dev.sem) extern int usb_lock_device_for_reset(struct usb_device *udev, - struct usb_interface *iface); + const struct usb_interface *iface); /* USB port reset for device reinitialization */ extern int usb_reset_device(struct usb_device *dev); @@ -393,6 +408,17 @@ extern struct usb_device *usb_find_device(u16 vendor_id, u16 product_id); +/* USB autosuspend and autoresume */ +#ifdef CONFIG_USB_SUSPEND +extern int usb_autopm_get_interface(struct usb_interface *intf); +extern void usb_autopm_put_interface(struct usb_interface *intf); + +#else +#define usb_autopm_get_interface(intf) 0 +#define usb_autopm_put_interface(intf) do {} while (0) +#endif + + /*-------------------------------------------------------------------------*/ /* for drivers using iso endpoints */ @@ -423,10 +449,10 @@ extern struct usb_interface *usb_find_interface(struct usb_driver *drv, int minor); -extern struct usb_interface *usb_ifnum_to_if(struct usb_device *dev, +extern struct usb_interface *usb_ifnum_to_if(const struct usb_device *dev, unsigned ifnum); extern struct usb_host_interface *usb_altnum_to_altsetting( - struct usb_interface *intf, unsigned int altnum); + const struct usb_interface *intf, unsigned int altnum); /** @@ -464,6 +490,20 @@ /*-------------------------------------------------------------------------*/ +extern int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_dir_out(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_xfer_bulk(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_xfer_int(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_xfer_isoc(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_is_bulk_in(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_is_bulk_out(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_is_int_in(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_is_int_out(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_is_isoc_in(const struct usb_endpoint_descriptor *epd); +extern int usb_endpoint_is_isoc_out(const struct usb_endpoint_descriptor *epd); + +/*-------------------------------------------------------------------------*/ + #define USB_DEVICE_ID_MATCH_DEVICE \ (USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT) #define USB_DEVICE_ID_MATCH_DEV_RANGE \ @@ -540,7 +580,17 @@ }; /** - * struct usb_driver - identifies USB driver to usbcore + * struct usbdrv_wrap - wrapper for driver-model structure + * @driver: The driver-model core driver structure. + * @for_devices: Non-zero for device drivers, 0 for interface drivers. + */ +struct usbdrv_wrap { + struct device_driver driver; + int for_devices; +}; + +/** + * struct usb_driver - identifies USB interface driver to usbcore * @name: The driver name should be unique among USB drivers, * and should normally be the same as the module name. * @probe: Called to see if the driver is willing to manage a particular @@ -567,12 +617,14 @@ * or your driver's probe function will never get called. * @dynids: used internally to hold the list of dynamically added device * ids for this driver. - * @driver: the driver model core driver structure. + * @drvwrap: Driver-model core structure wrapper. * @no_dynamic_id: if set to 1, the USB core will not allow dynamic ids to be * added to this driver by preventing the sysfs file from being created. + * @supports_autosuspend: if set to 0, the USB core will not allow autosuspend + * for interfaces bound to this driver. * - * USB drivers must provide a name, probe() and disconnect() methods, - * and an id_table. Other driver fields are optional. + * USB interface drivers must provide a name, probe() and disconnect() + * methods, and an id_table. Other driver fields are optional. * * The id_table is used in hotplugging. It holds a set of descriptors, * and specialized data may be associated with each entry. That table @@ -606,10 +658,44 @@ const struct usb_device_id *id_table; struct usb_dynids dynids; - struct device_driver driver; + struct usbdrv_wrap drvwrap; unsigned int no_dynamic_id:1; + unsigned int supports_autosuspend:1; }; -#define to_usb_driver(d) container_of(d, struct usb_driver, driver) +#define to_usb_driver(d) container_of(d, struct usb_driver, drvwrap.driver) + +/** + * struct usb_device_driver - identifies USB device driver to usbcore + * @name: The driver name should be unique among USB drivers, + * and should normally be the same as the module name. + * @probe: Called to see if the driver is willing to manage a particular + * device. If it is, probe returns zero and uses dev_set_drvdata() + * to associate driver-specific data with the device. If unwilling + * to manage the device, return a negative errno value. + * @disconnect: Called when the device is no longer accessible, usually + * because it has been (or is being) disconnected or the driver's + * module is being unloaded. + * @suspend: Called when the device is going to be suspended by the system. + * @resume: Called when the device is being resumed by the system. + * @drvwrap: Driver-model core structure wrapper. + * @supports_autosuspend: if set to 0, the USB core will not allow autosuspend + * for devices bound to this driver. + * + * USB drivers must provide all the fields listed above except drvwrap. + */ +struct usb_device_driver { + const char *name; + + int (*probe) (struct usb_device *udev); + void (*disconnect) (struct usb_device *udev); + + int (*suspend) (struct usb_device *udev, pm_message_t message); + int (*resume) (struct usb_device *udev); + struct usbdrv_wrap drvwrap; + unsigned int supports_autosuspend:1; +}; +#define to_usb_device_driver(d) container_of(d, struct usb_device_driver, \ + drvwrap.driver) extern struct bus_type usb_bus_type; @@ -633,13 +719,17 @@ * use these in module_init()/module_exit() * and don't forget MODULE_DEVICE_TABLE(usb, ...) */ -int usb_register_driver(struct usb_driver *, struct module *); +extern int usb_register_driver(struct usb_driver *, struct module *); static inline int usb_register(struct usb_driver *driver) { return usb_register_driver(driver, THIS_MODULE); } extern void usb_deregister(struct usb_driver *); +extern int usb_register_device_driver(struct usb_device_driver *, + struct module *); +extern void usb_deregister_device_driver(struct usb_device_driver *); + extern int usb_register_dev(struct usb_interface *intf, struct usb_class_driver *class_driver); extern void usb_deregister_dev(struct usb_interface *intf, @@ -885,7 +975,7 @@ * @setup_packet: pointer to the setup_packet buffer * @transfer_buffer: pointer to the transfer buffer * @buffer_length: length of the transfer buffer - * @complete: pointer to the usb_complete_t function + * @complete_fn: pointer to the usb_complete_t function * @context: what to set the urb context to. * * Initializes a control urb with the proper information needed to submit @@ -897,7 +987,7 @@ unsigned char *setup_packet, void *transfer_buffer, int buffer_length, - usb_complete_t complete, + usb_complete_t complete_fn, void *context) { spin_lock_init(&urb->lock); @@ -906,7 +996,7 @@ urb->setup_packet = setup_packet; urb->transfer_buffer = transfer_buffer; urb->transfer_buffer_length = buffer_length; - urb->complete = complete; + urb->complete = complete_fn; urb->context = context; } @@ -917,7 +1007,7 @@ * @pipe: the endpoint pipe * @transfer_buffer: pointer to the transfer buffer * @buffer_length: length of the transfer buffer - * @complete: pointer to the usb_complete_t function + * @complete_fn: pointer to the usb_complete_t function * @context: what to set the urb context to. * * Initializes a bulk urb with the proper information needed to submit it @@ -928,7 +1018,7 @@ unsigned int pipe, void *transfer_buffer, int buffer_length, - usb_complete_t complete, + usb_complete_t complete_fn, void *context) { spin_lock_init(&urb->lock); @@ -936,7 +1026,7 @@ urb->pipe = pipe; urb->transfer_buffer = transfer_buffer; urb->transfer_buffer_length = buffer_length; - urb->complete = complete; + urb->complete = complete_fn; urb->context = context; } @@ -947,7 +1037,7 @@ * @pipe: the endpoint pipe * @transfer_buffer: pointer to the transfer buffer * @buffer_length: length of the transfer buffer - * @complete: pointer to the usb_complete_t function + * @complete_fn: pointer to the usb_complete_t function * @context: what to set the urb context to. * @interval: what to set the urb interval to, encoded like * the endpoint descriptor's bInterval value. @@ -963,7 +1053,7 @@ unsigned int pipe, void *transfer_buffer, int buffer_length, - usb_complete_t complete, + usb_complete_t complete_fn, void *context, int interval) { @@ -972,7 +1062,7 @@ urb->pipe = pipe; urb->transfer_buffer = transfer_buffer; urb->transfer_buffer_length = buffer_length; - urb->complete = complete; + urb->complete = complete_fn; urb->context = context; if (dev->speed == USB_SPEED_HIGH) urb->interval = 1 << (interval - 1); @@ -990,7 +1080,6 @@ extern int usb_unlink_urb(struct urb *urb); extern void usb_kill_urb(struct urb *urb); -#define HAVE_USB_BUFFERS void *usb_buffer_alloc (struct usb_device *dev, size_t size, gfp_t mem_flags, dma_addr_t *dma); void usb_buffer_free (struct usb_device *dev, size_t size, @@ -1003,14 +1092,14 @@ #endif struct scatterlist; -int usb_buffer_map_sg (struct usb_device *dev, unsigned pipe, - struct scatterlist *sg, int nents); +int usb_buffer_map_sg(const struct usb_device *dev, unsigned pipe, + struct scatterlist *sg, int nents); #if 0 -void usb_buffer_dmasync_sg (struct usb_device *dev, unsigned pipe, - struct scatterlist *sg, int n_hw_ents); +void usb_buffer_dmasync_sg(const struct usb_device *dev, unsigned pipe, + struct scatterlist *sg, int n_hw_ents); #endif -void usb_buffer_unmap_sg (struct usb_device *dev, unsigned pipe, - struct scatterlist *sg, int n_hw_ents); +void usb_buffer_unmap_sg(const struct usb_device *dev, unsigned pipe, + struct scatterlist *sg, int n_hw_ents); /*-------------------------------------------------------------------* * SYNCHRONOUS CALL SUPPORT * @@ -1038,6 +1127,9 @@ extern int usb_reset_configuration(struct usb_device *dev); extern int usb_set_interface(struct usb_device *dev, int ifnum, int alternate); +/* this request isn't really synchronous, but it belongs with the others */ +extern int usb_driver_set_configuration(struct usb_device *udev, int config); + /* * timeouts, in milliseconds, used for sending/receiving control messages * they typically complete within a few frames (msec) after they're issued
diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h new file mode 100644 index 0000000..6bd2359 --- /dev/null +++ b/include/linux/usb/audio.h
@@ -0,0 +1,53 @@ +/* + * <linux/usb/audio.h> -- USB Audio definitions. + * + * Copyright (C) 2006 Thumtronics Pty Ltd. + * Developed for Thumtronics by Grey Innovation + * Ben Williamson <ben.williamson@greyinnovation.com> + * + * This software is distributed under the terms of the GNU General Public + * License ("GPL") version 2, as published by the Free Software Foundation. + * + * This file holds USB constants and structures defined + * by the USB Device Class Definition for Audio Devices. + * Comments below reference relevant sections of that document: + * + * http://www.usb.org/developers/devclass_docs/audio10.pdf + */ + +#ifndef __LINUX_USB_AUDIO_H +#define __LINUX_USB_AUDIO_H + +#include <linux/types.h> + +/* A.2 Audio Interface Subclass Codes */ +#define USB_SUBCLASS_AUDIOCONTROL 0x01 +#define USB_SUBCLASS_AUDIOSTREAMING 0x02 +#define USB_SUBCLASS_MIDISTREAMING 0x03 + +/* 4.3.2 Class-Specific AC Interface Descriptor */ +struct usb_ac_header_descriptor { + __u8 bLength; // 8+n + __u8 bDescriptorType; // USB_DT_CS_INTERFACE + __u8 bDescriptorSubtype; // USB_MS_HEADER + __le16 bcdADC; // 0x0100 + __le16 wTotalLength; // includes Unit and Terminal desc. + __u8 bInCollection; // n + __u8 baInterfaceNr[]; // [n] +} __attribute__ ((packed)); + +#define USB_DT_AC_HEADER_SIZE(n) (8+(n)) + +/* As above, but more useful for defining your own descriptors: */ +#define DECLARE_USB_AC_HEADER_DESCRIPTOR(n) \ +struct usb_ac_header_descriptor_##n { \ + __u8 bLength; \ + __u8 bDescriptorType; \ + __u8 bDescriptorSubtype; \ + __le16 bcdADC; \ + __le16 wTotalLength; \ + __u8 bInCollection; \ + __u8 baInterfaceNr[n]; \ +} __attribute__ ((packed)) + +#endif
diff --git a/include/linux/usb/midi.h b/include/linux/usb/midi.h new file mode 100644 index 0000000..11a97d5 --- /dev/null +++ b/include/linux/usb/midi.h
@@ -0,0 +1,112 @@ +/* + * <linux/usb/midi.h> -- USB MIDI definitions. + * + * Copyright (C) 2006 Thumtronics Pty Ltd. + * Developed for Thumtronics by Grey Innovation + * Ben Williamson <ben.williamson@greyinnovation.com> + * + * This software is distributed under the terms of the GNU General Public + * License ("GPL") version 2, as published by the Free Software Foundation. + * + * This file holds USB constants and structures defined + * by the USB Device Class Definition for MIDI Devices. + * Comments below reference relevant sections of that document: + * + * http://www.usb.org/developers/devclass_docs/midi10.pdf + */ + +#ifndef __LINUX_USB_MIDI_H +#define __LINUX_USB_MIDI_H + +#include <linux/types.h> + +/* A.1 MS Class-Specific Interface Descriptor Subtypes */ +#define USB_MS_HEADER 0x01 +#define USB_MS_MIDI_IN_JACK 0x02 +#define USB_MS_MIDI_OUT_JACK 0x03 +#define USB_MS_ELEMENT 0x04 + +/* A.2 MS Class-Specific Endpoint Descriptor Subtypes */ +#define USB_MS_GENERAL 0x01 + +/* A.3 MS MIDI IN and OUT Jack Types */ +#define USB_MS_EMBEDDED 0x01 +#define USB_MS_EXTERNAL 0x02 + +/* 6.1.2.1 Class-Specific MS Interface Header Descriptor */ +struct usb_ms_header_descriptor { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDescriptorSubtype; + __le16 bcdMSC; + __le16 wTotalLength; +} __attribute__ ((packed)); + +#define USB_DT_MS_HEADER_SIZE 7 + +/* 6.1.2.2 MIDI IN Jack Descriptor */ +struct usb_midi_in_jack_descriptor { + __u8 bLength; + __u8 bDescriptorType; // USB_DT_CS_INTERFACE + __u8 bDescriptorSubtype; // USB_MS_MIDI_IN_JACK + __u8 bJackType; // USB_MS_EMBEDDED/EXTERNAL + __u8 bJackID; + __u8 iJack; +} __attribute__ ((packed)); + +#define USB_DT_MIDI_IN_SIZE 6 + +struct usb_midi_source_pin { + __u8 baSourceID; + __u8 baSourcePin; +} __attribute__ ((packed)); + +/* 6.1.2.3 MIDI OUT Jack Descriptor */ +struct usb_midi_out_jack_descriptor { + __u8 bLength; + __u8 bDescriptorType; // USB_DT_CS_INTERFACE + __u8 bDescriptorSubtype; // USB_MS_MIDI_OUT_JACK + __u8 bJackType; // USB_MS_EMBEDDED/EXTERNAL + __u8 bJackID; + __u8 bNrInputPins; // p + struct usb_midi_source_pin pins[]; // [p] + /*__u8 iJack; -- ommitted due to variable-sized pins[] */ +} __attribute__ ((packed)); + +#define USB_DT_MIDI_OUT_SIZE(p) (7 + 2 * (p)) + +/* As above, but more useful for defining your own descriptors: */ +#define DECLARE_USB_MIDI_OUT_JACK_DESCRIPTOR(p) \ +struct usb_midi_out_jack_descriptor_##p { \ + __u8 bLength; \ + __u8 bDescriptorType; \ + __u8 bDescriptorSubtype; \ + __u8 bJackType; \ + __u8 bJackID; \ + __u8 bNrInputPins; \ + struct usb_midi_source_pin pins[p]; \ + __u8 iJack; \ +} __attribute__ ((packed)) + +/* 6.2.2 Class-Specific MS Bulk Data Endpoint Descriptor */ +struct usb_ms_endpoint_descriptor { + __u8 bLength; // 4+n + __u8 bDescriptorType; // USB_DT_CS_ENDPOINT + __u8 bDescriptorSubtype; // USB_MS_GENERAL + __u8 bNumEmbMIDIJack; // n + __u8 baAssocJackID[]; // [n] +} __attribute__ ((packed)); + +#define USB_DT_MS_ENDPOINT_SIZE(n) (4 + (n)) + +/* As above, but more useful for defining your own descriptors: */ +#define DECLARE_USB_MS_ENDPOINT_DESCRIPTOR(n) \ +struct usb_ms_endpoint_descriptor_##n { \ + __u8 bLength; \ + __u8 bDescriptorType; \ + __u8 bDescriptorSubtype; \ + __u8 bNumEmbMIDIJack; \ + __u8 baAssocJackID[n]; \ +} __attribute__ ((packed)) + +#endif
diff --git a/include/linux/usb_otg.h b/include/linux/usb/otg.h similarity index 97% rename from include/linux/usb_otg.h rename to include/linux/usb/otg.h index f827f6e..9897f7a 100644 --- a/include/linux/usb_otg.h +++ b/include/linux/usb/otg.h
@@ -1,4 +1,4 @@ -// include/linux/usb_otg.h +// include/linux/usb/otg.h /* * These APIs may be used between USB controllers. USB device drivers @@ -52,7 +52,7 @@ u16 port_change; /* bind/unbind the host controller */ - int (*set_host)(struct otg_transceiver *otg, + int (*set_host)(struct otg_transceiver *otg, struct usb_bus *host); /* bind/unbind the peripheral controller */
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h index e7fc5fe..2ae76fe 100644 --- a/include/linux/usb_usual.h +++ b/include/linux/usb_usual.h
@@ -108,6 +108,9 @@ #ifdef CONFIG_USB_STORAGE_ALAUDA #define US_PR_ALAUDA 0xf4 /* Alauda chipsets */ #endif +#ifdef CONFIG_USB_STORAGE_KARMA +#define US_PR_KARMA 0xf5 /* Rio Karma */ +#endif #define US_PR_DEVICE 0xff /* Use device's value */
diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h index 46919f9..4d0909e 100644 --- a/include/linux/vermagic.h +++ b/include/linux/vermagic.h
@@ -24,5 +24,5 @@ #define VERMAGIC_STRING \ UTS_RELEASE " " \ MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \ - MODULE_VERMAGIC_MODULE_UNLOAD MODULE_ARCH_VERMAGIC \ - "gcc-" __stringify(__GNUC__) "." __stringify(__GNUC_MINOR__) + MODULE_VERMAGIC_MODULE_UNLOAD MODULE_ARCH_VERMAGIC +
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 71b6363..ce5f148 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h
@@ -44,8 +44,6 @@ extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot); extern void *__vmalloc_area(struct vm_struct *area, gfp_t gfp_mask, pgprot_t prot); -extern void *__vmalloc_node(unsigned long size, gfp_t gfp_mask, - pgprot_t prot, int node); extern void vfree(void *addr); extern void *vmap(struct page **pages, unsigned int count, @@ -64,7 +62,6 @@ extern struct vm_struct *get_vm_area_node(unsigned long size, unsigned long flags, int node); extern struct vm_struct *remove_vm_area(void *addr); -extern struct vm_struct *__remove_vm_area(void *addr); extern int map_vm_area(struct vm_struct *area, pgprot_t prot, struct page ***pages); extern void unmap_vm_area(struct vm_struct *area);
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 2d9b1b6..176c7f7 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h
@@ -18,7 +18,19 @@ * generated will simply be the increment of a global address. */ -#define FOR_ALL_ZONES(x) x##_DMA, x##_DMA32, x##_NORMAL, x##_HIGH +#ifdef CONFIG_ZONE_DMA32 +#define DMA32_ZONE(xx) xx##_DMA32, +#else +#define DMA32_ZONE(xx) +#endif + +#ifdef CONFIG_HIGHMEM +#define HIGHMEM_ZONE(xx) , xx##_HIGH +#else +#define HIGHMEM_ZONE(xx) +#endif + +#define FOR_ALL_ZONES(xx) xx##_DMA, DMA32_ZONE(xx) xx##_NORMAL HIGHMEM_ZONE(xx) enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, FOR_ALL_ZONES(PGALLOC), @@ -124,12 +136,10 @@ struct zone *zones = NODE_DATA(node)->node_zones; return -#ifndef CONFIG_DMA_IS_NORMAL -#if !defined(CONFIG_DMA_IS_DMA32) && BITS_PER_LONG >= 64 +#ifdef CONFIG_ZONE_DMA32 zone_page_state(&zones[ZONE_DMA32], item) + #endif zone_page_state(&zones[ZONE_NORMAL], item) + -#endif #ifdef CONFIG_HIGHMEM zone_page_state(&zones[ZONE_HIGHMEM], item) + #endif
diff --git a/include/linux/wireless.h b/include/linux/wireless.h index 1358856..a50a013 100644 --- a/include/linux/wireless.h +++ b/include/linux/wireless.h
@@ -1,7 +1,7 @@ /* * This file define a set of standard wireless extensions * - * Version : 20 17.2.06 + * Version : 21 14.3.06 * * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com> * Copyright (c) 1997-2006 Jean Tourrilhes, All Rights Reserved. @@ -69,9 +69,14 @@ /***************************** INCLUDES *****************************/ +/* This header is used in user-space, therefore need to be sanitised + * for that purpose. Those includes are usually not compatible with glibc. + * To know which includes to use in user-space, check iwlib.h. */ +#ifdef __KERNEL__ #include <linux/types.h> /* for "caddr_t" et al */ #include <linux/socket.h> /* for "struct sockaddr" et al */ #include <linux/if.h> /* for IFNAMSIZ and co... */ +#endif /* __KERNEL__ */ /***************************** VERSION *****************************/ /* @@ -80,7 +85,7 @@ * (there is some stuff that will be added in the future...) * I just plan to increment with each new version. */ -#define WIRELESS_EXT 20 +#define WIRELESS_EXT 21 /* * Changes : @@ -208,6 +213,14 @@ * V19 to V20 * ---------- * - RtNetlink requests support (SET/GET) + * + * V20 to V21 + * ---------- + * - Remove (struct net_device *)->get_wireless_stats() + * - Change length in ESSID and NICK to strlen() instead of strlen()+1 + * - Add IW_RETRY_SHORT/IW_RETRY_LONG retry modifiers + * - Power/Retry relative values no longer * 100000 + * - Add explicit flag to tell stats are in 802.11k RCPI : IW_QUAL_RCPI */ /**************************** CONSTANTS ****************************/ @@ -448,6 +461,7 @@ #define IW_QUAL_QUAL_INVALID 0x10 /* Driver doesn't provide value */ #define IW_QUAL_LEVEL_INVALID 0x20 #define IW_QUAL_NOISE_INVALID 0x40 +#define IW_QUAL_RCPI 0x80 /* Level + Noise are 802.11k RCPI */ #define IW_QUAL_ALL_INVALID 0x70 /* Frequency flags */ @@ -500,10 +514,12 @@ #define IW_RETRY_TYPE 0xF000 /* Type of parameter */ #define IW_RETRY_LIMIT 0x1000 /* Maximum number of retries*/ #define IW_RETRY_LIFETIME 0x2000 /* Maximum duration of retries in us */ -#define IW_RETRY_MODIFIER 0x000F /* Modify a parameter */ +#define IW_RETRY_MODIFIER 0x00FF /* Modify a parameter */ #define IW_RETRY_MIN 0x0001 /* Value is a minimum */ #define IW_RETRY_MAX 0x0002 /* Value is a maximum */ #define IW_RETRY_RELATIVE 0x0004 /* Value is not in seconds/ms/us */ +#define IW_RETRY_SHORT 0x0010 /* Value is for short packets */ +#define IW_RETRY_LONG 0x0020 /* Value is for long packets */ /* Scanning request flags */ #define IW_SCAN_DEFAULT 0x0000 /* Default scan of the driver */ @@ -1017,7 +1033,7 @@ /* Note : this frequency list doesn't need to fit channel numbers, * because each entry contain its channel index */ - __u32 enc_capa; /* IW_ENC_CAPA_* bit field */ + __u32 enc_capa; /* IW_ENC_CAPA_* bit field */ }; /*
diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 0422036..56a23a0 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h
@@ -116,6 +116,7 @@ loff_t pos, loff_t count); int sync_page_range_nolock(struct inode *inode, struct address_space *mapping, loff_t pos, loff_t count); +void set_page_dirty_balance(struct page *page); /* pdflush.c */ extern int nr_pdflush_threads; /* Global so it can be exported to sysctl
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h index 810462f..bb495b7 100644 --- a/include/media/v4l2-dev.h +++ b/include/media/v4l2-dev.h
@@ -341,7 +341,7 @@ extern struct video_device* video_devdata(struct file*); #define to_video_device(cd) container_of(cd, struct video_device, class_dev) -static inline int +static inline int __must_check video_device_create_file(struct video_device *vfd, struct class_device_attribute *attr) {
diff --git a/include/net/cipso_ipv4.h b/include/net/cipso_ipv4.h index 59406e0..2d72496c 100644 --- a/include/net/cipso_ipv4.h +++ b/include/net/cipso_ipv4.h
@@ -130,8 +130,9 @@ int cipso_v4_doi_add(struct cipso_v4_doi *doi_def); int cipso_v4_doi_remove(u32 doi, void (*callback) (struct rcu_head * head)); struct cipso_v4_doi *cipso_v4_doi_getdef(u32 doi); -struct sk_buff *cipso_v4_doi_dump_all(size_t headroom); -struct sk_buff *cipso_v4_doi_dump(u32 doi, size_t headroom); +int cipso_v4_doi_walk(u32 *skip_cnt, + int (*callback) (struct cipso_v4_doi *doi_def, void *arg), + void *cb_arg); int cipso_v4_doi_domhsh_add(struct cipso_v4_doi *doi_def, const char *domain); int cipso_v4_doi_domhsh_remove(struct cipso_v4_doi *doi_def, const char *domain); @@ -152,14 +153,11 @@ return NULL; } -static inline struct sk_buff *cipso_v4_doi_dump_all(size_t headroom) +static inline int cipso_v4_doi_walk(u32 *skip_cnt, + int (*callback) (struct cipso_v4_doi *doi_def, void *arg), + void *cb_arg) { - return NULL; -} - -static inline struct sk_buff *cipso_v4_doi_dump(u32 doi, size_t headroom) -{ - return NULL; + return 0; } static inline int cipso_v4_doi_domhsh_add(struct cipso_v4_doi *doi_def, @@ -205,6 +203,7 @@ int cipso_v4_socket_setattr(const struct socket *sock, const struct cipso_v4_doi *doi_def, const struct netlbl_lsm_secattr *secattr); +int cipso_v4_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr); int cipso_v4_socket_getattr(const struct socket *sock, struct netlbl_lsm_secattr *secattr); int cipso_v4_skbuff_getattr(const struct sk_buff *skb, @@ -225,6 +224,12 @@ return -ENOSYS; } +static inline int cipso_v4_sock_getattr(struct sock *sk, + struct netlbl_lsm_secattr *secattr) +{ + return -ENOSYS; +} + static inline int cipso_v4_socket_getattr(const struct socket *sock, struct netlbl_lsm_secattr *secattr) {
diff --git a/include/net/netlabel.h b/include/net/netlabel.h index dd5780b..6692430 100644 --- a/include/net/netlabel.h +++ b/include/net/netlabel.h
@@ -57,9 +57,8 @@ * The payload is dependent on the subsystem specified in the * 'nlmsghdr->nlmsg_type' and should be defined below, supporting functions * should be defined in the corresponding net/netlabel/netlabel_<subsys>.h|c - * file. All of the fields in the NetLabel payload are NETLINK attributes, the - * length of each field is the length of the NETLINK attribute payload, see - * include/net/netlink.h for more information on NETLINK attributes. + * file. All of the fields in the NetLabel payload are NETLINK attributes, see + * the include/net/netlink.h file for more information on NETLINK attributes. * */ @@ -82,50 +81,6 @@ #define NETLBL_NLTYPE_UNLABELED 5 #define NETLBL_NLTYPE_UNLABELED_NAME "NLBL_UNLBL" -/* NetLabel return codes */ -#define NETLBL_E_OK 0 - -/* - * Helper functions - */ - -#define NETLBL_LEN_U8 nla_total_size(sizeof(u8)) -#define NETLBL_LEN_U16 nla_total_size(sizeof(u16)) -#define NETLBL_LEN_U32 nla_total_size(sizeof(u32)) - -/** - * netlbl_netlink_alloc_skb - Allocate a NETLINK message buffer - * @head: the amount of headroom in bytes - * @body: the desired size (minus headroom) in bytes - * @gfp_flags: the alloc flags to pass to alloc_skb() - * - * Description: - * Allocate a NETLINK message buffer based on the sizes given in @head and - * @body. If @head is greater than zero skb_reserve() is called to reserve - * @head bytes at the start of the buffer. Returns a valid sk_buff pointer on - * success, NULL on failure. - * - */ -static inline struct sk_buff *netlbl_netlink_alloc_skb(size_t head, - size_t body, - gfp_t gfp_flags) -{ - struct sk_buff *skb; - - skb = alloc_skb(NLMSG_ALIGN(head + body), gfp_flags); - if (skb == NULL) - return NULL; - if (head > 0) { - skb_reserve(skb, head); - if (skb_tailroom(skb) < body) { - kfree_skb(skb); - return NULL; - } - } - - return skb; -} - /* * NetLabel - Kernel API for accessing the network packet label mappings. * @@ -238,6 +193,8 @@ #ifdef CONFIG_NETLABEL int netlbl_socket_setattr(const struct socket *sock, const struct netlbl_lsm_secattr *secattr); +int netlbl_sock_getattr(struct sock *sk, + struct netlbl_lsm_secattr *secattr); int netlbl_socket_getattr(const struct socket *sock, struct netlbl_lsm_secattr *secattr); int netlbl_skbuff_getattr(const struct sk_buff *skb, @@ -250,6 +207,12 @@ return -ENOSYS; } +static inline int netlbl_sock_getattr(struct sock *sk, + struct netlbl_lsm_secattr *secattr) +{ + return -ENOSYS; +} + static inline int netlbl_socket_getattr(const struct socket *sock, struct netlbl_lsm_secattr *secattr) {
diff --git a/include/net/netlink.h b/include/net/netlink.h index 11dc2e7..4ab68a7 100644 --- a/include/net/netlink.h +++ b/include/net/netlink.h
@@ -146,11 +146,13 @@ * nla_ok(nla, remaining) does nla fit into remaining bytes? * nla_next(nla, remaining) get next netlink attribute * nla_validate() validate a stream of attributes + * nla_validate_nested() validate a stream of nested attributes * nla_find() find attribute in stream of attributes * nla_find_nested() find attribute in nested attributes * nla_parse() parse and validate stream of attrs * nla_parse_nested() parse nested attribuets * nla_for_each_attr() loop over all attributes + * nla_for_each_nested() loop over the nested attributes *========================================================================= */ @@ -950,6 +952,24 @@ } /** + * nla_validate_nested - Validate a stream of nested attributes + * @start: container attribute + * @maxtype: maximum attribute type to be expected + * @policy: validation policy + * + * Validates all attributes in the nested attribute stream against the + * specified policy. Attributes with a type exceeding maxtype will be + * ignored. See documenation of struct nla_policy for more details. + * + * Returns 0 on success or a negative error code. + */ +static inline int nla_validate_nested(struct nlattr *start, int maxtype, + struct nla_policy *policy) +{ + return nla_validate(nla_data(start), nla_len(start), maxtype, policy); +} + +/** * nla_for_each_attr - iterate over a stream of attributes * @pos: loop counter, set to current attribute * @head: head of attribute stream
diff --git a/init/Kconfig b/init/Kconfig index 9a7656f..4381006 100644 --- a/init/Kconfig +++ b/init/Kconfig
@@ -273,21 +273,24 @@ This enables the legacy 16-bit UID syscall wrappers. config SYSCTL - bool "Sysctl support" if EMBEDDED - default y - ---help--- - The sysctl interface provides a means of dynamically changing - certain kernel parameters and variables on the fly without requiring - a recompile of the kernel or reboot of the system. The primary - interface consists of a system call, but if you say Y to "/proc - file system support", a tree of modifiable sysctl entries will be - generated beneath the /proc/sys directory. They are explained in the - files in <file:Documentation/sysctl/>. Note that enabling this - option will enlarge the kernel by at least 8 KB. + bool - As it is generally a good thing, you should say Y here unless - building a kernel for install/rescue disks or your system is very - limited in memory. +config SYSCTL_SYSCALL + bool "Sysctl syscall support" + default n + select SYSCTL + ---help--- + Enable the deprecated sysctl system call. sys_sysctl uses + binary paths that have been found to be a major pain to maintain + and use. The interface in /proc/sys is now the primary and what + everyone uses. + + Nothing has been using the binary sysctl interface for some time + time now so nothing should break if you disable sysctl syscall + support, and you kernel will get marginally smaller. + + Unless you have an application that uses the sys_syscall interface + you should probably say N here. config KALLSYMS bool "Load all symbols for debugging/kksymoops" if EMBEDDED
diff --git a/init/do_mounts.c b/init/do_mounts.c index 94aeec7..b290aad 100644 --- a/init/do_mounts.c +++ b/init/do_mounts.c
@@ -8,6 +8,7 @@ #include <linux/security.h> #include <linux/delay.h> #include <linux/mount.h> +#include <linux/device.h> #include <linux/nfs_fs.h> #include <linux/nfs_fs_sb.h> @@ -403,6 +404,10 @@ ssleep(root_delay); } + /* wait for the known devices to complete their probing */ + while (driver_probe_done() != 0) + msleep(100); + md_run_setup(); if (saved_root_name[0]) {
diff --git a/init/main.c b/init/main.c index 8651a72..0766e69 100644 --- a/init/main.c +++ b/init/main.c
@@ -128,6 +128,18 @@ static unsigned int max_cpus = NR_CPUS; /* + * If set, this is an indication to the drivers that reset the underlying + * device before going ahead with the initialization otherwise driver might + * rely on the BIOS and skip the reset operation. + * + * This is useful if kernel is booting in an unreliable environment. + * For ex. kdump situaiton where previous kernel has crashed, BIOS has been + * skipped and devices will be in unknown state. + */ +unsigned int reset_devices; +EXPORT_SYMBOL(reset_devices); + +/* * Setup routine for controlling SMP activation * * Command-line option of "nosmp" or "maxcpus=0" will disable SMP @@ -153,6 +165,14 @@ __setup("maxcpus=", maxcpus); +static int __init set_reset_devices(char *str) +{ + reset_devices = 1; + return 1; +} + +__setup("reset_devices", set_reset_devices); + static char * argv_init[MAX_INIT_ARGS+2] = { "init", NULL, }; char * envp_init[MAX_INIT_ENVS+2] = { "HOME=/", "TERM=linux", NULL, }; static const char *panic_later, *panic_param; @@ -162,16 +182,19 @@ static int __init obsolete_checksetup(char *line) { struct obs_kernel_param *p; + int had_early_param = 0; p = __setup_start; do { int n = strlen(p->str); if (!strncmp(line, p->str, n)) { if (p->early) { - /* Already done in parse_early_param? (Needs - * exact match on param part) */ + /* Already done in parse_early_param? + * (Needs exact match on param part). + * Keep iterating, as we can have early + * params and __setups of same names 8( */ if (line[n] == '\0' || line[n] == '=') - return 1; + had_early_param = 1; } else if (!p->setup_func) { printk(KERN_WARNING "Parameter %s is obsolete," " ignored\n", p->str); @@ -181,7 +204,8 @@ } p++; } while (p < __setup_end); - return 0; + + return had_early_param; } /* @@ -464,6 +488,7 @@ * Need to run as early as possible, to initialize the * lockdep hash: */ + unwind_init(); lockdep_init(); local_irq_disable(); @@ -502,7 +527,6 @@ __stop___param - __start___param, &unknown_bootoption); sort_main_extable(); - unwind_init(); trap_init(); rcu_init(); init_IRQ();
diff --git a/ipc/mqueue.c b/ipc/mqueue.c index 02e6f67..840f8a6 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c
@@ -115,7 +115,6 @@ inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mtime = inode->i_ctime = inode->i_atime = CURRENT_TIME; @@ -1275,10 +1274,7 @@ out_sysctl: if (mq_sysctl_table) unregister_sysctl_table(mq_sysctl_table); - if (kmem_cache_destroy(mqueue_inode_cachep)) { - printk(KERN_INFO - "mqueue_inode_cache: not all structures were freed\n"); - } + kmem_cache_destroy(mqueue_inode_cachep); return error; }
diff --git a/kernel/audit.c b/kernel/audit.c index 963fd15..f9889ee 100644 --- a/kernel/audit.c +++ b/kernel/audit.c
@@ -244,7 +244,7 @@ char *ctx = NULL; u32 len; int rc; - if ((rc = selinux_ctxid_to_string(sid, &ctx, &len))) + if ((rc = selinux_sid_to_string(sid, &ctx, &len))) return rc; else audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, @@ -267,7 +267,7 @@ char *ctx = NULL; u32 len; int rc; - if ((rc = selinux_ctxid_to_string(sid, &ctx, &len))) + if ((rc = selinux_sid_to_string(sid, &ctx, &len))) return rc; else audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, @@ -293,7 +293,7 @@ char *ctx = NULL; u32 len; int rc; - if ((rc = selinux_ctxid_to_string(sid, &ctx, &len))) + if ((rc = selinux_sid_to_string(sid, &ctx, &len))) return rc; else audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, @@ -321,7 +321,7 @@ char *ctx = NULL; u32 len; int rc; - if ((rc = selinux_ctxid_to_string(sid, &ctx, &len))) + if ((rc = selinux_sid_to_string(sid, &ctx, &len))) return rc; else audit_log(NULL, GFP_KERNEL, AUDIT_CONFIG_CHANGE, @@ -538,7 +538,7 @@ if (status_get->mask & AUDIT_STATUS_PID) { int old = audit_pid; if (sid) { - if ((err = selinux_ctxid_to_string( + if ((err = selinux_sid_to_string( sid, &ctx, &len))) return err; else @@ -576,7 +576,7 @@ "user pid=%d uid=%u auid=%u", pid, uid, loginuid); if (sid) { - if (selinux_ctxid_to_string( + if (selinux_sid_to_string( sid, &ctx, &len)) { audit_log_format(ab, " ssid=%u", sid); @@ -614,7 +614,7 @@ loginuid, sid); break; case AUDIT_SIGNAL_INFO: - err = selinux_ctxid_to_string(audit_sig_sid, &ctx, &len); + err = selinux_sid_to_string(audit_sig_sid, &ctx, &len); if (err) return err; sig_data = kmalloc(sizeof(*sig_data) + len, GFP_KERNEL);
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c index a44879b..1a58a81 100644 --- a/kernel/auditfilter.c +++ b/kernel/auditfilter.c
@@ -1398,7 +1398,7 @@ if (sid) { char *ctx = NULL; u32 len; - if (selinux_ctxid_to_string(sid, &ctx, &len)) + if (selinux_sid_to_string(sid, &ctx, &len)) audit_log_format(ab, " ssid=%u", sid); else audit_log_format(ab, " subj=%s", ctx);
diff --git a/kernel/auditsc.c b/kernel/auditsc.c index 1bd8827..fb83c5c 100644 --- a/kernel/auditsc.c +++ b/kernel/auditsc.c
@@ -385,7 +385,7 @@ logged upon error */ if (f->se_rule) { if (need_sid) { - selinux_task_ctxid(tsk, &sid); + selinux_get_task_sid(tsk, &sid); need_sid = 0; } result = selinux_audit_rule_match(sid, f->type, @@ -898,7 +898,7 @@ if (axi->osid != 0) { char *ctx = NULL; u32 len; - if (selinux_ctxid_to_string( + if (selinux_sid_to_string( axi->osid, &ctx, &len)) { audit_log_format(ab, " osid=%u", axi->osid); @@ -1005,7 +1005,7 @@ if (n->osid != 0) { char *ctx = NULL; u32 len; - if (selinux_ctxid_to_string( + if (selinux_sid_to_string( n->osid, &ctx, &len)) { audit_log_format(ab, " osid=%u", n->osid); call_panic = 2;
diff --git a/kernel/cpu.c b/kernel/cpu.c index f230f9a..32c9662 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c
@@ -21,6 +21,11 @@ static __cpuinitdata BLOCKING_NOTIFIER_HEAD(cpu_chain); +/* If set, cpu_up and cpu_down will return -EBUSY and do nothing. + * Should always be manipulated under cpu_add_remove_lock + */ +static int cpu_hotplug_disabled; + #ifdef CONFIG_HOTPLUG_CPU /* Crappy recursive lock-takers in cpufreq! Complain loudly about idiots */ @@ -108,30 +113,25 @@ return 0; } -int cpu_down(unsigned int cpu) +/* Requires cpu_add_remove_lock to be held */ +static int _cpu_down(unsigned int cpu) { int err; struct task_struct *p; cpumask_t old_allowed, tmp; - mutex_lock(&cpu_add_remove_lock); - if (num_online_cpus() == 1) { - err = -EBUSY; - goto out; - } + if (num_online_cpus() == 1) + return -EBUSY; - if (!cpu_online(cpu)) { - err = -EINVAL; - goto out; - } + if (!cpu_online(cpu)) + return -EINVAL; err = blocking_notifier_call_chain(&cpu_chain, CPU_DOWN_PREPARE, (void *)(long)cpu); if (err == NOTIFY_BAD) { printk("%s: attempt to take down CPU %u failed\n", __FUNCTION__, cpu); - err = -EINVAL; - goto out; + return -EINVAL; } /* Ensure that we are not runnable on dying cpu */ @@ -179,22 +179,32 @@ err = kthread_stop(p); out_allowed: set_cpus_allowed(current, old_allowed); -out: + return err; +} + +int cpu_down(unsigned int cpu) +{ + int err = 0; + + mutex_lock(&cpu_add_remove_lock); + if (cpu_hotplug_disabled) + err = -EBUSY; + else + err = _cpu_down(cpu); + mutex_unlock(&cpu_add_remove_lock); return err; } #endif /*CONFIG_HOTPLUG_CPU*/ -int __devinit cpu_up(unsigned int cpu) +/* Requires cpu_add_remove_lock to be held */ +static int __devinit _cpu_up(unsigned int cpu) { int ret; void *hcpu = (void *)(long)cpu; - mutex_lock(&cpu_add_remove_lock); - if (cpu_online(cpu) || !cpu_present(cpu)) { - ret = -EINVAL; - goto out; - } + if (cpu_online(cpu) || !cpu_present(cpu)) + return -EINVAL; ret = blocking_notifier_call_chain(&cpu_chain, CPU_UP_PREPARE, hcpu); if (ret == NOTIFY_BAD) { @@ -219,7 +229,95 @@ if (ret != 0) blocking_notifier_call_chain(&cpu_chain, CPU_UP_CANCELED, hcpu); -out: - mutex_unlock(&cpu_add_remove_lock); + return ret; } + +int __devinit cpu_up(unsigned int cpu) +{ + int err = 0; + + mutex_lock(&cpu_add_remove_lock); + if (cpu_hotplug_disabled) + err = -EBUSY; + else + err = _cpu_up(cpu); + + mutex_unlock(&cpu_add_remove_lock); + return err; +} + +#ifdef CONFIG_SUSPEND_SMP +static cpumask_t frozen_cpus; + +int disable_nonboot_cpus(void) +{ + int cpu, first_cpu, error; + + mutex_lock(&cpu_add_remove_lock); + first_cpu = first_cpu(cpu_present_map); + if (!cpu_online(first_cpu)) { + error = _cpu_up(first_cpu); + if (error) { + printk(KERN_ERR "Could not bring CPU%d up.\n", + first_cpu); + goto out; + } + } + error = set_cpus_allowed(current, cpumask_of_cpu(first_cpu)); + if (error) { + printk(KERN_ERR "Could not run on CPU%d\n", first_cpu); + goto out; + } + /* We take down all of the non-boot CPUs in one shot to avoid races + * with the userspace trying to use the CPU hotplug at the same time + */ + cpus_clear(frozen_cpus); + printk("Disabling non-boot CPUs ...\n"); + for_each_online_cpu(cpu) { + if (cpu == first_cpu) + continue; + error = _cpu_down(cpu); + if (!error) { + cpu_set(cpu, frozen_cpus); + printk("CPU%d is down\n", cpu); + } else { + printk(KERN_ERR "Error taking CPU%d down: %d\n", + cpu, error); + break; + } + } + if (!error) { + BUG_ON(num_online_cpus() > 1); + /* Make sure the CPUs won't be enabled by someone else */ + cpu_hotplug_disabled = 1; + } else { + printk(KERN_ERR "Non-boot CPUs are not disabled"); + } +out: + mutex_unlock(&cpu_add_remove_lock); + return error; +} + +void enable_nonboot_cpus(void) +{ + int cpu, error; + + /* Allow everyone to use the CPU hotplug again */ + mutex_lock(&cpu_add_remove_lock); + cpu_hotplug_disabled = 0; + mutex_unlock(&cpu_add_remove_lock); + + printk("Enabling non-boot CPUs ...\n"); + for_each_cpu_mask(cpu, frozen_cpus) { + error = cpu_up(cpu); + if (!error) { + printk("CPU%d is up\n", cpu); + continue; + } + printk(KERN_WARNING "Error taking CPU%d up: %d\n", + cpu, error); + } + cpus_clear(frozen_cpus); +} +#endif
diff --git a/kernel/cpuset.c b/kernel/cpuset.c index 4ea6f0d..1b32c2c 100644 --- a/kernel/cpuset.c +++ b/kernel/cpuset.c
@@ -289,7 +289,6 @@ inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; inode->i_mapping->backing_dev_info = &cpuset_backing_dev_info; @@ -2245,7 +2244,7 @@ int i; for (i = 0; zl->zones[i]; i++) { - int nid = zl->zones[i]->zone_pgdat->node_id; + int nid = zone_to_nid(zl->zones[i]); if (node_isset(nid, current->mems_allowed)) return 1; @@ -2316,9 +2315,9 @@ const struct cpuset *cs; /* current cpuset ancestors */ int allowed; /* is allocation in zone z allowed? */ - if (in_interrupt()) + if (in_interrupt() || (gfp_mask & __GFP_THISNODE)) return 1; - node = z->zone_pgdat->node_id; + node = zone_to_nid(z); might_sleep_if(!(gfp_mask & __GFP_HARDWALL)); if (node_isset(node, current->mems_allowed)) return 1;
diff --git a/kernel/fork.c b/kernel/fork.c index f9b014e..a0dad84 100644 --- a/kernel/fork.c +++ b/kernel/fork.c
@@ -45,6 +45,7 @@ #include <linux/cn_proc.h> #include <linux/delayacct.h> #include <linux/taskstats_kern.h> +#include <linux/random.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> @@ -175,6 +176,10 @@ tsk->thread_info = ti; setup_thread_stack(tsk, orig); +#ifdef CONFIG_CC_STACKPROTECTOR + tsk->stack_canary = get_random_int(); +#endif + /* One for us, one for whoever does the "release_task()" (usually parent) */ atomic_set(&tsk->usage,2); atomic_set(&tsk->fs_excl, 0);
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index 48a53f6..4c6cdba 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c
@@ -154,6 +154,7 @@ return retval; } +#ifndef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ /** * __do_IRQ - original all in one highlevel IRQ handler * @irq: the interrupt number @@ -253,6 +254,7 @@ return 1; } +#endif #ifdef CONFIG_TRACE_IRQFLAGS
diff --git a/kernel/lockdep.c b/kernel/lockdep.c index 9bad178..c088e55 100644 --- a/kernel/lockdep.c +++ b/kernel/lockdep.c
@@ -224,7 +224,14 @@ trace->max_entries = MAX_STACK_TRACE_ENTRIES - nr_stack_trace_entries; trace->entries = stack_trace + nr_stack_trace_entries; - save_stack_trace(trace, NULL, 0, 3); + trace->skip = 3; + trace->all_contexts = 0; + + /* Make sure to not recurse in case the the unwinder needs to tak +e locks. */ + lockdep_off(); + save_stack_trace(trace, NULL); + lockdep_on(); trace->max_entries = trace->nr_entries;
diff --git a/kernel/module.c b/kernel/module.c index 2a19cd4..b7fe6e8 100644 --- a/kernel/module.c +++ b/kernel/module.c
@@ -1054,6 +1054,12 @@ { int err; + if (!module_subsys.kset.subsys) { + printk(KERN_ERR "%s: module_subsys not initialized\n", + mod->name); + err = -EINVAL; + goto out; + } memset(&mod->mkobj.kobj, 0, sizeof(mod->mkobj.kobj)); err = kobject_set_name(&mod->mkobj.kobj, "%s", mod->name); if (err)
diff --git a/kernel/panic.c b/kernel/panic.c index 8010b9b..6ceb664 100644 --- a/kernel/panic.c +++ b/kernel/panic.c
@@ -21,6 +21,7 @@ #include <linux/debug_locks.h> int panic_on_oops; +int panic_on_unrecovered_nmi; int tainted; static int pause_on_oops; static int pause_on_oops_flag; @@ -270,3 +271,15 @@ { do_oops_enter_exit(); } + +#ifdef CONFIG_CC_STACKPROTECTOR +/* + * Called when gcc's -fstack-protector feature is used, and + * gcc detects corruption of the on-stack canary value + */ +void __stack_chk_fail(void) +{ + panic("stack-protector: Kernel stack is corrupted"); +} +EXPORT_SYMBOL(__stack_chk_fail); +#endif
diff --git a/kernel/pid.c b/kernel/pid.c index 93e212f..8387e8c 100644 --- a/kernel/pid.c +++ b/kernel/pid.c
@@ -223,9 +223,6 @@ struct pid_link *link; struct pid *pid; - WARN_ON(!task->pid); /* to be removed soon */ - WARN_ON(!nr); /* to be removed soon */ - link = &task->pids[type]; link->pid = pid = find_pid(nr); hlist_add_head_rcu(&link->node, &pid->tasks[type]); @@ -252,6 +249,15 @@ free_pid(pid); } +/* transfer_pid is an optimization of attach_pid(new), detach_pid(old) */ +void fastcall transfer_pid(struct task_struct *old, struct task_struct *new, + enum pid_type type) +{ + new->pids[type].pid = old->pids[type].pid; + hlist_replace_rcu(&old->pids[type].node, &new->pids[type].node); + old->pids[type].pid = NULL; +} + struct task_struct * fastcall pid_task(struct pid *pid, enum pid_type type) { struct task_struct *result = NULL;
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 619ecab..825068c 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig
@@ -36,6 +36,17 @@ code. This is helpful when debugging and reporting various PM bugs, like suspend support. +config DISABLE_CONSOLE_SUSPEND + bool "Keep console(s) enabled during suspend/resume (DANGEROUS)" + depends on PM && PM_DEBUG + default n + ---help--- + This option turns off the console suspend mechanism that prevents + debug messages from reaching the console during the suspend/resume + operations. This may be helpful when debugging device drivers' + suspend/resume routines, but may itself lead to problems, for example + if netconsole is used. + config PM_TRACE bool "Suspend/resume event tracing" depends on PM && PM_DEBUG && X86_32 && EXPERIMENTAL @@ -53,6 +64,17 @@ CAUTION: this option will cause your machine's real-time clock to be set to an invalid time after a resume. +config PM_SYSFS_DEPRECATED + bool "Driver model /sys/devices/.../power/state files (DEPRECATED)" + depends on PM && SYSFS + default n + help + The driver model started out with a sysfs file intended to provide + a userspace hook for device power management. This feature has never + worked very well, except for limited testing purposes, and so it will + be removed. It's not clear that a generic mechanism could really + handle the wide variability of device power states; any replacements + are likely to be bus or driver specific. config SOFTWARE_SUSPEND bool "Software Suspend"
diff --git a/kernel/power/Makefile b/kernel/power/Makefile index 8d0af3d..38725f5 100644 --- a/kernel/power/Makefile +++ b/kernel/power/Makefile
@@ -7,6 +7,4 @@ obj-$(CONFIG_PM_LEGACY) += pm.o obj-$(CONFIG_SOFTWARE_SUSPEND) += swsusp.o disk.o snapshot.o swap.o user.o -obj-$(CONFIG_SUSPEND_SMP) += smp.o - obj-$(CONFIG_MAGIC_SYSRQ) += poweroff.o
diff --git a/kernel/power/disk.c b/kernel/power/disk.c index e13e740..d722349 100644 --- a/kernel/power/disk.c +++ b/kernel/power/disk.c
@@ -18,6 +18,7 @@ #include <linux/fs.h> #include <linux/mount.h> #include <linux/pm.h> +#include <linux/cpu.h> #include "power.h" @@ -72,7 +73,10 @@ int error; pm_prepare_console(); - disable_nonboot_cpus(); + + error = disable_nonboot_cpus(); + if (error) + goto enable_cpus; if (freeze_processes()) { error = -EBUSY; @@ -84,6 +88,7 @@ return 0; thaw: thaw_processes(); +enable_cpus: enable_nonboot_cpus(); pm_restore_console(); return error; @@ -98,7 +103,7 @@ } /** - * pm_suspend_disk - The granpappy of power management. + * pm_suspend_disk - The granpappy of hibernation power management. * * If we're going through the firmware, then get it over with quickly. * @@ -207,7 +212,7 @@ pr_debug("PM: Preparing devices for restore.\n"); - if ((error = device_suspend(PMSG_FREEZE))) { + if ((error = device_suspend(PMSG_PRETHAW))) { printk("Some devices failed to suspend\n"); swsusp_free(); goto Thaw;
diff --git a/kernel/power/main.c b/kernel/power/main.c index 6d295c7..873228c 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c
@@ -16,6 +16,8 @@ #include <linux/init.h> #include <linux/pm.h> #include <linux/console.h> +#include <linux/cpu.h> +#include <linux/resume-trace.h> #include "power.h" @@ -51,7 +53,7 @@ static int suspend_prepare(suspend_state_t state) { - int error = 0; + int error; unsigned int free_pages; if (!pm_ops || !pm_ops->enter) @@ -59,12 +61,9 @@ pm_prepare_console(); - disable_nonboot_cpus(); - - if (num_online_cpus() != 1) { - error = -EPERM; + error = disable_nonboot_cpus(); + if (error) goto Enable_cpu; - } if (freeze_processes()) { error = -EAGAIN; @@ -283,10 +282,39 @@ power_attr(state); +#ifdef CONFIG_PM_TRACE +int pm_trace_enabled; + +static ssize_t pm_trace_show(struct subsystem * subsys, char * buf) +{ + return sprintf(buf, "%d\n", pm_trace_enabled); +} + +static ssize_t +pm_trace_store(struct subsystem * subsys, const char * buf, size_t n) +{ + int val; + + if (sscanf(buf, "%d", &val) == 1) { + pm_trace_enabled = !!val; + return n; + } + return -EINVAL; +} + +power_attr(pm_trace); + +static struct attribute * g[] = { + &state_attr.attr, + &pm_trace_attr.attr, + NULL, +}; +#else static struct attribute * g[] = { &state_attr.attr, NULL, }; +#endif /* CONFIG_PM_TRACE */ static struct attribute_group attr_group = { .attrs = g,
diff --git a/kernel/power/power.h b/kernel/power/power.h index 57a7929..bfe999f 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h
@@ -38,8 +38,6 @@ /* References to section boundaries */ extern const void __nosave_begin, __nosave_end; -extern struct pbe *pagedir_nosave; - /* Preferred image size in bytes (default 500 MB) */ extern unsigned long image_size; extern int in_suspend; @@ -50,21 +48,62 @@ extern unsigned int count_data_pages(void); +/** + * Auxiliary structure used for reading the snapshot image data and + * metadata from and writing them to the list of page backup entries + * (PBEs) which is the main data structure of swsusp. + * + * Using struct snapshot_handle we can transfer the image, including its + * metadata, as a continuous sequence of bytes with the help of + * snapshot_read_next() and snapshot_write_next(). + * + * The code that writes the image to a storage or transfers it to + * the user land is required to use snapshot_read_next() for this + * purpose and it should not make any assumptions regarding the internal + * structure of the image. Similarly, the code that reads the image from + * a storage or transfers it from the user land is required to use + * snapshot_write_next(). + * + * This may allow us to change the internal structure of the image + * in the future with considerably less effort. + */ + struct snapshot_handle { - loff_t offset; - unsigned int page; - unsigned int page_offset; - unsigned int prev; - struct pbe *pbe, *last_pbe; - void *buffer; - unsigned int buf_offset; + loff_t offset; /* number of the last byte ready for reading + * or writing in the sequence + */ + unsigned int cur; /* number of the block of PAGE_SIZE bytes the + * next operation will refer to (ie. current) + */ + unsigned int cur_offset; /* offset with respect to the current + * block (for the next operation) + */ + unsigned int prev; /* number of the block of PAGE_SIZE bytes that + * was the current one previously + */ + void *buffer; /* address of the block to read from + * or write to + */ + unsigned int buf_offset; /* location to read from or write to, + * given as a displacement from 'buffer' + */ + int sync_read; /* Set to one to notify the caller of + * snapshot_write_next() that it may + * need to call wait_on_bio_chain() + */ }; +/* This macro returns the address from/to which the caller of + * snapshot_read_next()/snapshot_write_next() is allowed to + * read/write data after the function returns + */ #define data_of(handle) ((handle).buffer + (handle).buf_offset) +extern unsigned int snapshot_additional_pages(struct zone *zone); extern int snapshot_read_next(struct snapshot_handle *handle, size_t count); extern int snapshot_write_next(struct snapshot_handle *handle, size_t count); -int snapshot_image_loaded(struct snapshot_handle *handle); +extern int snapshot_image_loaded(struct snapshot_handle *handle); +extern void snapshot_free_unused_memory(struct snapshot_handle *handle); #define SNAPSHOT_IOC_MAGIC '3' #define SNAPSHOT_FREEZE _IO(SNAPSHOT_IOC_MAGIC, 1)
diff --git a/kernel/power/smp.c b/kernel/power/smp.c deleted file mode 100644 index 5957312..0000000 --- a/kernel/power/smp.c +++ /dev/null
@@ -1,62 +0,0 @@ -/* - * drivers/power/smp.c - Functions for stopping other CPUs. - * - * Copyright 2004 Pavel Machek <pavel@suse.cz> - * Copyright (C) 2002-2003 Nigel Cunningham <ncunningham@clear.net.nz> - * - * This file is released under the GPLv2. - */ - -#undef DEBUG - -#include <linux/smp_lock.h> -#include <linux/interrupt.h> -#include <linux/suspend.h> -#include <linux/module.h> -#include <linux/cpu.h> -#include <asm/atomic.h> -#include <asm/tlbflush.h> - -/* This is protected by pm_sem semaphore */ -static cpumask_t frozen_cpus; - -void disable_nonboot_cpus(void) -{ - int cpu, error; - - error = 0; - cpus_clear(frozen_cpus); - printk("Freezing cpus ...\n"); - for_each_online_cpu(cpu) { - if (cpu == 0) - continue; - error = cpu_down(cpu); - if (!error) { - cpu_set(cpu, frozen_cpus); - printk("CPU%d is down\n", cpu); - continue; - } - printk("Error taking cpu %d down: %d\n", cpu, error); - } - BUG_ON(raw_smp_processor_id() != 0); - if (error) - panic("cpus not sleeping"); -} - -void enable_nonboot_cpus(void) -{ - int cpu, error; - - printk("Thawing cpus ...\n"); - for_each_cpu_mask(cpu, frozen_cpus) { - error = cpu_up(cpu); - if (!error) { - printk("CPU%d is up\n", cpu); - continue; - } - printk("Error taking cpu %d up: %d\n", cpu, error); - panic("Not enough cpus"); - } - cpus_clear(frozen_cpus); -} -
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c index 75d4886..1b84313 100644 --- a/kernel/power/snapshot.c +++ b/kernel/power/snapshot.c
@@ -34,10 +34,12 @@ #include "power.h" -struct pbe *pagedir_nosave; +/* List of PBEs used for creating and restoring the suspend image */ +struct pbe *restore_pblist; + static unsigned int nr_copy_pages; static unsigned int nr_meta_pages; -static unsigned long *buffer; +static void *buffer; #ifdef CONFIG_HIGHMEM unsigned int count_highmem_pages(void) @@ -156,155 +158,6 @@ static inline int restore_highmem(void) {return 0;} #endif -static int pfn_is_nosave(unsigned long pfn) -{ - unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT; - unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT; - return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn); -} - -/** - * saveable - Determine whether a page should be cloned or not. - * @pfn: The page - * - * We save a page if it's Reserved, and not in the range of pages - * statically defined as 'unsaveable', or if it isn't reserved, and - * isn't part of a free chunk of pages. - */ - -static int saveable(struct zone *zone, unsigned long *zone_pfn) -{ - unsigned long pfn = *zone_pfn + zone->zone_start_pfn; - struct page *page; - - if (!pfn_valid(pfn)) - return 0; - - page = pfn_to_page(pfn); - BUG_ON(PageReserved(page) && PageNosave(page)); - if (PageNosave(page)) - return 0; - if (PageReserved(page) && pfn_is_nosave(pfn)) - return 0; - if (PageNosaveFree(page)) - return 0; - - return 1; -} - -unsigned int count_data_pages(void) -{ - struct zone *zone; - unsigned long zone_pfn; - unsigned int n = 0; - - for_each_zone (zone) { - if (is_highmem(zone)) - continue; - mark_free_pages(zone); - for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn) - n += saveable(zone, &zone_pfn); - } - return n; -} - -static void copy_data_pages(struct pbe *pblist) -{ - struct zone *zone; - unsigned long zone_pfn; - struct pbe *pbe, *p; - - pbe = pblist; - for_each_zone (zone) { - if (is_highmem(zone)) - continue; - mark_free_pages(zone); - /* This is necessary for swsusp_free() */ - for_each_pb_page (p, pblist) - SetPageNosaveFree(virt_to_page(p)); - for_each_pbe (p, pblist) - SetPageNosaveFree(virt_to_page(p->address)); - for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn) { - if (saveable(zone, &zone_pfn)) { - struct page *page; - long *src, *dst; - int n; - - page = pfn_to_page(zone_pfn + zone->zone_start_pfn); - BUG_ON(!pbe); - pbe->orig_address = (unsigned long)page_address(page); - /* copy_page and memcpy are not usable for copying task structs. */ - dst = (long *)pbe->address; - src = (long *)pbe->orig_address; - for (n = PAGE_SIZE / sizeof(long); n; n--) - *dst++ = *src++; - pbe = pbe->next; - } - } - } - BUG_ON(pbe); -} - - -/** - * free_pagedir - free pages allocated with alloc_pagedir() - */ - -static void free_pagedir(struct pbe *pblist, int clear_nosave_free) -{ - struct pbe *pbe; - - while (pblist) { - pbe = (pblist + PB_PAGE_SKIP)->next; - ClearPageNosave(virt_to_page(pblist)); - if (clear_nosave_free) - ClearPageNosaveFree(virt_to_page(pblist)); - free_page((unsigned long)pblist); - pblist = pbe; - } -} - -/** - * fill_pb_page - Create a list of PBEs on a given memory page - */ - -static inline void fill_pb_page(struct pbe *pbpage) -{ - struct pbe *p; - - p = pbpage; - pbpage += PB_PAGE_SKIP; - do - p->next = p + 1; - while (++p < pbpage); -} - -/** - * create_pbe_list - Create a list of PBEs on top of a given chain - * of memory pages allocated with alloc_pagedir() - */ - -static inline void create_pbe_list(struct pbe *pblist, unsigned int nr_pages) -{ - struct pbe *pbpage, *p; - unsigned int num = PBES_PER_PAGE; - - for_each_pb_page (pbpage, pblist) { - if (num >= nr_pages) - break; - - fill_pb_page(pbpage); - num += PBES_PER_PAGE; - } - if (pbpage) { - for (num -= PBES_PER_PAGE - 1, p = pbpage; num < nr_pages; p++, num++) - p->next = p + 1; - p->next = NULL; - } -} - -static unsigned int unsafe_pages; - /** * @safe_needed - on resume, for storing the PBE list and the image, * we can only use memory pages that do not conflict with the pages @@ -314,7 +167,14 @@ * and we count them using unsafe_pages */ -static inline void *alloc_image_page(gfp_t gfp_mask, int safe_needed) +#define PG_ANY 0 +#define PG_SAFE 1 +#define PG_UNSAFE_CLEAR 1 +#define PG_UNSAFE_KEEP 0 + +static unsigned int allocated_unsafe_pages; + +static void *alloc_image_page(gfp_t gfp_mask, int safe_needed) { void *res; @@ -323,7 +183,7 @@ while (res && PageNosaveFree(virt_to_page(res))) { /* The page is unsafe, mark it for swsusp_free() */ SetPageNosave(virt_to_page(res)); - unsafe_pages++; + allocated_unsafe_pages++; res = (void *)get_zeroed_page(gfp_mask); } if (res) { @@ -335,61 +195,600 @@ unsigned long get_safe_page(gfp_t gfp_mask) { - return (unsigned long)alloc_image_page(gfp_mask, 1); + return (unsigned long)alloc_image_page(gfp_mask, PG_SAFE); } /** - * alloc_pagedir - Allocate the page directory. - * - * First, determine exactly how many pages we need and - * allocate them. - * - * We arrange the pages in a chain: each page is an array of PBES_PER_PAGE - * struct pbe elements (pbes) and the last element in the page points - * to the next page. - * - * On each page we set up a list of struct_pbe elements. + * free_image_page - free page represented by @addr, allocated with + * alloc_image_page (page flags set by it must be cleared) */ -static struct pbe *alloc_pagedir(unsigned int nr_pages, gfp_t gfp_mask, - int safe_needed) +static inline void free_image_page(void *addr, int clear_nosave_free) { - unsigned int num; - struct pbe *pblist, *pbe; + ClearPageNosave(virt_to_page(addr)); + if (clear_nosave_free) + ClearPageNosaveFree(virt_to_page(addr)); + free_page((unsigned long)addr); +} - if (!nr_pages) - return NULL; +/* struct linked_page is used to build chains of pages */ - pblist = alloc_image_page(gfp_mask, safe_needed); - /* FIXME: rewrite this ugly loop */ - for (pbe = pblist, num = PBES_PER_PAGE; pbe && num < nr_pages; - pbe = pbe->next, num += PBES_PER_PAGE) { - pbe += PB_PAGE_SKIP; - pbe->next = alloc_image_page(gfp_mask, safe_needed); +#define LINKED_PAGE_DATA_SIZE (PAGE_SIZE - sizeof(void *)) + +struct linked_page { + struct linked_page *next; + char data[LINKED_PAGE_DATA_SIZE]; +} __attribute__((packed)); + +static inline void +free_list_of_pages(struct linked_page *list, int clear_page_nosave) +{ + while (list) { + struct linked_page *lp = list->next; + + free_image_page(list, clear_page_nosave); + list = lp; } - if (!pbe) { /* get_zeroed_page() failed */ - free_pagedir(pblist, 1); - pblist = NULL; - } else - create_pbe_list(pblist, nr_pages); - return pblist; } /** - * Free pages we allocated for suspend. Suspend pages are alocated - * before atomic copy, so we need to free them after resume. + * struct chain_allocator is used for allocating small objects out of + * a linked list of pages called 'the chain'. + * + * The chain grows each time when there is no room for a new object in + * the current page. The allocated objects cannot be freed individually. + * It is only possible to free them all at once, by freeing the entire + * chain. + * + * NOTE: The chain allocator may be inefficient if the allocated objects + * are not much smaller than PAGE_SIZE. + */ + +struct chain_allocator { + struct linked_page *chain; /* the chain */ + unsigned int used_space; /* total size of objects allocated out + * of the current page + */ + gfp_t gfp_mask; /* mask for allocating pages */ + int safe_needed; /* if set, only "safe" pages are allocated */ +}; + +static void +chain_init(struct chain_allocator *ca, gfp_t gfp_mask, int safe_needed) +{ + ca->chain = NULL; + ca->used_space = LINKED_PAGE_DATA_SIZE; + ca->gfp_mask = gfp_mask; + ca->safe_needed = safe_needed; +} + +static void *chain_alloc(struct chain_allocator *ca, unsigned int size) +{ + void *ret; + + if (LINKED_PAGE_DATA_SIZE - ca->used_space < size) { + struct linked_page *lp; + + lp = alloc_image_page(ca->gfp_mask, ca->safe_needed); + if (!lp) + return NULL; + + lp->next = ca->chain; + ca->chain = lp; + ca->used_space = 0; + } + ret = ca->chain->data + ca->used_space; + ca->used_space += size; + return ret; +} + +static void chain_free(struct chain_allocator *ca, int clear_page_nosave) +{ + free_list_of_pages(ca->chain, clear_page_nosave); + memset(ca, 0, sizeof(struct chain_allocator)); +} + +/** + * Data types related to memory bitmaps. + * + * Memory bitmap is a structure consiting of many linked lists of + * objects. The main list's elements are of type struct zone_bitmap + * and each of them corresonds to one zone. For each zone bitmap + * object there is a list of objects of type struct bm_block that + * represent each blocks of bit chunks in which information is + * stored. + * + * struct memory_bitmap contains a pointer to the main list of zone + * bitmap objects, a struct bm_position used for browsing the bitmap, + * and a pointer to the list of pages used for allocating all of the + * zone bitmap objects and bitmap block objects. + * + * NOTE: It has to be possible to lay out the bitmap in memory + * using only allocations of order 0. Additionally, the bitmap is + * designed to work with arbitrary number of zones (this is over the + * top for now, but let's avoid making unnecessary assumptions ;-). + * + * struct zone_bitmap contains a pointer to a list of bitmap block + * objects and a pointer to the bitmap block object that has been + * most recently used for setting bits. Additionally, it contains the + * pfns that correspond to the start and end of the represented zone. + * + * struct bm_block contains a pointer to the memory page in which + * information is stored (in the form of a block of bit chunks + * of type unsigned long each). It also contains the pfns that + * correspond to the start and end of the represented memory area and + * the number of bit chunks in the block. + * + * NOTE: Memory bitmaps are used for two types of operations only: + * "set a bit" and "find the next bit set". Moreover, the searching + * is always carried out after all of the "set a bit" operations + * on given bitmap. + */ + +#define BM_END_OF_MAP (~0UL) + +#define BM_CHUNKS_PER_BLOCK (PAGE_SIZE / sizeof(long)) +#define BM_BITS_PER_CHUNK (sizeof(long) << 3) +#define BM_BITS_PER_BLOCK (PAGE_SIZE << 3) + +struct bm_block { + struct bm_block *next; /* next element of the list */ + unsigned long start_pfn; /* pfn represented by the first bit */ + unsigned long end_pfn; /* pfn represented by the last bit plus 1 */ + unsigned int size; /* number of bit chunks */ + unsigned long *data; /* chunks of bits representing pages */ +}; + +struct zone_bitmap { + struct zone_bitmap *next; /* next element of the list */ + unsigned long start_pfn; /* minimal pfn in this zone */ + unsigned long end_pfn; /* maximal pfn in this zone plus 1 */ + struct bm_block *bm_blocks; /* list of bitmap blocks */ + struct bm_block *cur_block; /* recently used bitmap block */ +}; + +/* strcut bm_position is used for browsing memory bitmaps */ + +struct bm_position { + struct zone_bitmap *zone_bm; + struct bm_block *block; + int chunk; + int bit; +}; + +struct memory_bitmap { + struct zone_bitmap *zone_bm_list; /* list of zone bitmaps */ + struct linked_page *p_list; /* list of pages used to store zone + * bitmap objects and bitmap block + * objects + */ + struct bm_position cur; /* most recently used bit position */ +}; + +/* Functions that operate on memory bitmaps */ + +static inline void memory_bm_reset_chunk(struct memory_bitmap *bm) +{ + bm->cur.chunk = 0; + bm->cur.bit = -1; +} + +static void memory_bm_position_reset(struct memory_bitmap *bm) +{ + struct zone_bitmap *zone_bm; + + zone_bm = bm->zone_bm_list; + bm->cur.zone_bm = zone_bm; + bm->cur.block = zone_bm->bm_blocks; + memory_bm_reset_chunk(bm); +} + +static void memory_bm_free(struct memory_bitmap *bm, int clear_nosave_free); + +/** + * create_bm_block_list - create a list of block bitmap objects + */ + +static inline struct bm_block * +create_bm_block_list(unsigned int nr_blocks, struct chain_allocator *ca) +{ + struct bm_block *bblist = NULL; + + while (nr_blocks-- > 0) { + struct bm_block *bb; + + bb = chain_alloc(ca, sizeof(struct bm_block)); + if (!bb) + return NULL; + + bb->next = bblist; + bblist = bb; + } + return bblist; +} + +/** + * create_zone_bm_list - create a list of zone bitmap objects + */ + +static inline struct zone_bitmap * +create_zone_bm_list(unsigned int nr_zones, struct chain_allocator *ca) +{ + struct zone_bitmap *zbmlist = NULL; + + while (nr_zones-- > 0) { + struct zone_bitmap *zbm; + + zbm = chain_alloc(ca, sizeof(struct zone_bitmap)); + if (!zbm) + return NULL; + + zbm->next = zbmlist; + zbmlist = zbm; + } + return zbmlist; +} + +/** + * memory_bm_create - allocate memory for a memory bitmap + */ + +static int +memory_bm_create(struct memory_bitmap *bm, gfp_t gfp_mask, int safe_needed) +{ + struct chain_allocator ca; + struct zone *zone; + struct zone_bitmap *zone_bm; + struct bm_block *bb; + unsigned int nr; + + chain_init(&ca, gfp_mask, safe_needed); + + /* Compute the number of zones */ + nr = 0; + for_each_zone (zone) + if (populated_zone(zone) && !is_highmem(zone)) + nr++; + + /* Allocate the list of zones bitmap objects */ + zone_bm = create_zone_bm_list(nr, &ca); + bm->zone_bm_list = zone_bm; + if (!zone_bm) { + chain_free(&ca, PG_UNSAFE_CLEAR); + return -ENOMEM; + } + + /* Initialize the zone bitmap objects */ + for_each_zone (zone) { + unsigned long pfn; + + if (!populated_zone(zone) || is_highmem(zone)) + continue; + + zone_bm->start_pfn = zone->zone_start_pfn; + zone_bm->end_pfn = zone->zone_start_pfn + zone->spanned_pages; + /* Allocate the list of bitmap block objects */ + nr = DIV_ROUND_UP(zone->spanned_pages, BM_BITS_PER_BLOCK); + bb = create_bm_block_list(nr, &ca); + zone_bm->bm_blocks = bb; + zone_bm->cur_block = bb; + if (!bb) + goto Free; + + nr = zone->spanned_pages; + pfn = zone->zone_start_pfn; + /* Initialize the bitmap block objects */ + while (bb) { + unsigned long *ptr; + + ptr = alloc_image_page(gfp_mask, safe_needed); + bb->data = ptr; + if (!ptr) + goto Free; + + bb->start_pfn = pfn; + if (nr >= BM_BITS_PER_BLOCK) { + pfn += BM_BITS_PER_BLOCK; + bb->size = BM_CHUNKS_PER_BLOCK; + nr -= BM_BITS_PER_BLOCK; + } else { + /* This is executed only once in the loop */ + pfn += nr; + bb->size = DIV_ROUND_UP(nr, BM_BITS_PER_CHUNK); + } + bb->end_pfn = pfn; + bb = bb->next; + } + zone_bm = zone_bm->next; + } + bm->p_list = ca.chain; + memory_bm_position_reset(bm); + return 0; + +Free: + bm->p_list = ca.chain; + memory_bm_free(bm, PG_UNSAFE_CLEAR); + return -ENOMEM; +} + +/** + * memory_bm_free - free memory occupied by the memory bitmap @bm + */ + +static void memory_bm_free(struct memory_bitmap *bm, int clear_nosave_free) +{ + struct zone_bitmap *zone_bm; + + /* Free the list of bit blocks for each zone_bitmap object */ + zone_bm = bm->zone_bm_list; + while (zone_bm) { + struct bm_block *bb; + + bb = zone_bm->bm_blocks; + while (bb) { + if (bb->data) + free_image_page(bb->data, clear_nosave_free); + bb = bb->next; + } + zone_bm = zone_bm->next; + } + free_list_of_pages(bm->p_list, clear_nosave_free); + bm->zone_bm_list = NULL; +} + +/** + * memory_bm_set_bit - set the bit in the bitmap @bm that corresponds + * to given pfn. The cur_zone_bm member of @bm and the cur_block member + * of @bm->cur_zone_bm are updated. + * + * If the bit cannot be set, the function returns -EINVAL . + */ + +static int +memory_bm_set_bit(struct memory_bitmap *bm, unsigned long pfn) +{ + struct zone_bitmap *zone_bm; + struct bm_block *bb; + + /* Check if the pfn is from the current zone */ + zone_bm = bm->cur.zone_bm; + if (pfn < zone_bm->start_pfn || pfn >= zone_bm->end_pfn) { + zone_bm = bm->zone_bm_list; + /* We don't assume that the zones are sorted by pfns */ + while (pfn < zone_bm->start_pfn || pfn >= zone_bm->end_pfn) { + zone_bm = zone_bm->next; + if (unlikely(!zone_bm)) + return -EINVAL; + } + bm->cur.zone_bm = zone_bm; + } + /* Check if the pfn corresponds to the current bitmap block */ + bb = zone_bm->cur_block; + if (pfn < bb->start_pfn) + bb = zone_bm->bm_blocks; + + while (pfn >= bb->end_pfn) { + bb = bb->next; + if (unlikely(!bb)) + return -EINVAL; + } + zone_bm->cur_block = bb; + pfn -= bb->start_pfn; + set_bit(pfn % BM_BITS_PER_CHUNK, bb->data + pfn / BM_BITS_PER_CHUNK); + return 0; +} + +/* Two auxiliary functions for memory_bm_next_pfn */ + +/* Find the first set bit in the given chunk, if there is one */ + +static inline int next_bit_in_chunk(int bit, unsigned long *chunk_p) +{ + bit++; + while (bit < BM_BITS_PER_CHUNK) { + if (test_bit(bit, chunk_p)) + return bit; + + bit++; + } + return -1; +} + +/* Find a chunk containing some bits set in given block of bits */ + +static inline int next_chunk_in_block(int n, struct bm_block *bb) +{ + n++; + while (n < bb->size) { + if (bb->data[n]) + return n; + + n++; + } + return -1; +} + +/** + * memory_bm_next_pfn - find the pfn that corresponds to the next set bit + * in the bitmap @bm. If the pfn cannot be found, BM_END_OF_MAP is + * returned. + * + * It is required to run memory_bm_position_reset() before the first call to + * this function. + */ + +static unsigned long memory_bm_next_pfn(struct memory_bitmap *bm) +{ + struct zone_bitmap *zone_bm; + struct bm_block *bb; + int chunk; + int bit; + + do { + bb = bm->cur.block; + do { + chunk = bm->cur.chunk; + bit = bm->cur.bit; + do { + bit = next_bit_in_chunk(bit, bb->data + chunk); + if (bit >= 0) + goto Return_pfn; + + chunk = next_chunk_in_block(chunk, bb); + bit = -1; + } while (chunk >= 0); + bb = bb->next; + bm->cur.block = bb; + memory_bm_reset_chunk(bm); + } while (bb); + zone_bm = bm->cur.zone_bm->next; + if (zone_bm) { + bm->cur.zone_bm = zone_bm; + bm->cur.block = zone_bm->bm_blocks; + memory_bm_reset_chunk(bm); + } + } while (zone_bm); + memory_bm_position_reset(bm); + return BM_END_OF_MAP; + +Return_pfn: + bm->cur.chunk = chunk; + bm->cur.bit = bit; + return bb->start_pfn + chunk * BM_BITS_PER_CHUNK + bit; +} + +/** + * snapshot_additional_pages - estimate the number of additional pages + * be needed for setting up the suspend image data structures for given + * zone (usually the returned value is greater than the exact number) + */ + +unsigned int snapshot_additional_pages(struct zone *zone) +{ + unsigned int res; + + res = DIV_ROUND_UP(zone->spanned_pages, BM_BITS_PER_BLOCK); + res += DIV_ROUND_UP(res * sizeof(struct bm_block), PAGE_SIZE); + return res; +} + +/** + * pfn_is_nosave - check if given pfn is in the 'nosave' section + */ + +static inline int pfn_is_nosave(unsigned long pfn) +{ + unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT; + unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT; + return (pfn >= nosave_begin_pfn) && (pfn < nosave_end_pfn); +} + +/** + * saveable - Determine whether a page should be cloned or not. + * @pfn: The page + * + * We save a page if it isn't Nosave, and is not in the range of pages + * statically defined as 'unsaveable', and it + * isn't a part of a free chunk of pages. + */ + +static struct page *saveable_page(unsigned long pfn) +{ + struct page *page; + + if (!pfn_valid(pfn)) + return NULL; + + page = pfn_to_page(pfn); + + if (PageNosave(page)) + return NULL; + if (PageReserved(page) && pfn_is_nosave(pfn)) + return NULL; + if (PageNosaveFree(page)) + return NULL; + + return page; +} + +unsigned int count_data_pages(void) +{ + struct zone *zone; + unsigned long pfn, max_zone_pfn; + unsigned int n = 0; + + for_each_zone (zone) { + if (is_highmem(zone)) + continue; + mark_free_pages(zone); + max_zone_pfn = zone->zone_start_pfn + zone->spanned_pages; + for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++) + n += !!saveable_page(pfn); + } + return n; +} + +static inline void copy_data_page(long *dst, long *src) +{ + int n; + + /* copy_page and memcpy are not usable for copying task structs. */ + for (n = PAGE_SIZE / sizeof(long); n; n--) + *dst++ = *src++; +} + +static void +copy_data_pages(struct memory_bitmap *copy_bm, struct memory_bitmap *orig_bm) +{ + struct zone *zone; + unsigned long pfn; + + for_each_zone (zone) { + unsigned long max_zone_pfn; + + if (is_highmem(zone)) + continue; + + mark_free_pages(zone); + max_zone_pfn = zone->zone_start_pfn + zone->spanned_pages; + for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++) + if (saveable_page(pfn)) + memory_bm_set_bit(orig_bm, pfn); + } + memory_bm_position_reset(orig_bm); + memory_bm_position_reset(copy_bm); + do { + pfn = memory_bm_next_pfn(orig_bm); + if (likely(pfn != BM_END_OF_MAP)) { + struct page *page; + void *src; + + page = pfn_to_page(pfn); + src = page_address(page); + page = pfn_to_page(memory_bm_next_pfn(copy_bm)); + copy_data_page(page_address(page), src); + } + } while (pfn != BM_END_OF_MAP); +} + +/** + * swsusp_free - free pages allocated for the suspend. + * + * Suspend pages are alocated before the atomic copy is made, so we + * need to release them after the resume. */ void swsusp_free(void) { struct zone *zone; - unsigned long zone_pfn; + unsigned long pfn, max_zone_pfn; for_each_zone(zone) { - for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn) - if (pfn_valid(zone_pfn + zone->zone_start_pfn)) { - struct page *page; - page = pfn_to_page(zone_pfn + zone->zone_start_pfn); + max_zone_pfn = zone->zone_start_pfn + zone->spanned_pages; + for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++) + if (pfn_valid(pfn)) { + struct page *page = pfn_to_page(pfn); + if (PageNosave(page) && PageNosaveFree(page)) { ClearPageNosave(page); ClearPageNosaveFree(page); @@ -399,7 +798,7 @@ } nr_copy_pages = 0; nr_meta_pages = 0; - pagedir_nosave = NULL; + restore_pblist = NULL; buffer = NULL; } @@ -414,45 +813,56 @@ static int enough_free_mem(unsigned int nr_pages) { struct zone *zone; - unsigned int n = 0; + unsigned int free = 0, meta = 0; for_each_zone (zone) - if (!is_highmem(zone)) - n += zone->free_pages; - pr_debug("swsusp: available memory: %u pages\n", n); - return n > (nr_pages + PAGES_FOR_IO + - (nr_pages + PBES_PER_PAGE - 1) / PBES_PER_PAGE); + if (!is_highmem(zone)) { + free += zone->free_pages; + meta += snapshot_additional_pages(zone); + } + + pr_debug("swsusp: pages needed: %u + %u + %u, available pages: %u\n", + nr_pages, PAGES_FOR_IO, meta, free); + + return free > nr_pages + PAGES_FOR_IO + meta; } -static int alloc_data_pages(struct pbe *pblist, gfp_t gfp_mask, int safe_needed) +static int +swsusp_alloc(struct memory_bitmap *orig_bm, struct memory_bitmap *copy_bm, + unsigned int nr_pages) { - struct pbe *p; + int error; - for_each_pbe (p, pblist) { - p->address = (unsigned long)alloc_image_page(gfp_mask, safe_needed); - if (!p->address) - return -ENOMEM; + error = memory_bm_create(orig_bm, GFP_ATOMIC | __GFP_COLD, PG_ANY); + if (error) + goto Free; + + error = memory_bm_create(copy_bm, GFP_ATOMIC | __GFP_COLD, PG_ANY); + if (error) + goto Free; + + while (nr_pages-- > 0) { + struct page *page = alloc_page(GFP_ATOMIC | __GFP_COLD); + if (!page) + goto Free; + + SetPageNosave(page); + SetPageNosaveFree(page); + memory_bm_set_bit(copy_bm, page_to_pfn(page)); } return 0; + +Free: + swsusp_free(); + return -ENOMEM; } -static struct pbe *swsusp_alloc(unsigned int nr_pages) -{ - struct pbe *pblist; - - if (!(pblist = alloc_pagedir(nr_pages, GFP_ATOMIC | __GFP_COLD, 0))) { - printk(KERN_ERR "suspend: Allocating pagedir failed.\n"); - return NULL; - } - - if (alloc_data_pages(pblist, GFP_ATOMIC | __GFP_COLD, 0)) { - printk(KERN_ERR "suspend: Allocating image pages failed.\n"); - swsusp_free(); - return NULL; - } - - return pblist; -} +/* Memory bitmap used for marking saveable pages */ +static struct memory_bitmap orig_bm; +/* Memory bitmap used for marking allocated pages that will contain the copies + * of saveable pages + */ +static struct memory_bitmap copy_bm; asmlinkage int swsusp_save(void) { @@ -464,25 +874,19 @@ nr_pages = count_data_pages(); printk("swsusp: Need to copy %u pages\n", nr_pages); - pr_debug("swsusp: pages needed: %u + %lu + %u, free: %u\n", - nr_pages, - (nr_pages + PBES_PER_PAGE - 1) / PBES_PER_PAGE, - PAGES_FOR_IO, nr_free_pages()); - if (!enough_free_mem(nr_pages)) { printk(KERN_ERR "swsusp: Not enough free memory\n"); return -ENOMEM; } - pagedir_nosave = swsusp_alloc(nr_pages); - if (!pagedir_nosave) + if (swsusp_alloc(&orig_bm, ©_bm, nr_pages)) return -ENOMEM; /* During allocating of suspend pagedir, new cold pages may appear. * Kill them. */ drain_local_pages(); - copy_data_pages(pagedir_nosave); + copy_data_pages(©_bm, &orig_bm); /* * End of critical section. From now on, we can write to memory, @@ -511,22 +915,20 @@ } /** - * pack_orig_addresses - the .orig_address fields of the PBEs from the - * list starting at @pbe are stored in the array @buf[] (1 page) + * pack_pfns - pfns corresponding to the set bits found in the bitmap @bm + * are stored in the array @buf[] (1 page at a time) */ -static inline struct pbe *pack_orig_addresses(unsigned long *buf, struct pbe *pbe) +static inline void +pack_pfns(unsigned long *buf, struct memory_bitmap *bm) { int j; - for (j = 0; j < PAGE_SIZE / sizeof(long) && pbe; j++) { - buf[j] = pbe->orig_address; - pbe = pbe->next; + for (j = 0; j < PAGE_SIZE / sizeof(long); j++) { + buf[j] = memory_bm_next_pfn(bm); + if (unlikely(buf[j] == BM_END_OF_MAP)) + break; } - if (!pbe) - for (; j < PAGE_SIZE / sizeof(long); j++) - buf[j] = 0; - return pbe; } /** @@ -553,37 +955,39 @@ int snapshot_read_next(struct snapshot_handle *handle, size_t count) { - if (handle->page > nr_meta_pages + nr_copy_pages) + if (handle->cur > nr_meta_pages + nr_copy_pages) return 0; + if (!buffer) { /* This makes the buffer be freed by swsusp_free() */ - buffer = alloc_image_page(GFP_ATOMIC, 0); + buffer = alloc_image_page(GFP_ATOMIC, PG_ANY); if (!buffer) return -ENOMEM; } if (!handle->offset) { init_header((struct swsusp_info *)buffer); handle->buffer = buffer; - handle->pbe = pagedir_nosave; + memory_bm_position_reset(&orig_bm); + memory_bm_position_reset(©_bm); } - if (handle->prev < handle->page) { - if (handle->page <= nr_meta_pages) { - handle->pbe = pack_orig_addresses(buffer, handle->pbe); - if (!handle->pbe) - handle->pbe = pagedir_nosave; + if (handle->prev < handle->cur) { + if (handle->cur <= nr_meta_pages) { + memset(buffer, 0, PAGE_SIZE); + pack_pfns(buffer, &orig_bm); } else { - handle->buffer = (void *)handle->pbe->address; - handle->pbe = handle->pbe->next; + unsigned long pfn = memory_bm_next_pfn(©_bm); + + handle->buffer = page_address(pfn_to_page(pfn)); } - handle->prev = handle->page; + handle->prev = handle->cur; } - handle->buf_offset = handle->page_offset; - if (handle->page_offset + count >= PAGE_SIZE) { - count = PAGE_SIZE - handle->page_offset; - handle->page_offset = 0; - handle->page++; + handle->buf_offset = handle->cur_offset; + if (handle->cur_offset + count >= PAGE_SIZE) { + count = PAGE_SIZE - handle->cur_offset; + handle->cur_offset = 0; + handle->cur++; } else { - handle->page_offset += count; + handle->cur_offset += count; } handle->offset += count; return count; @@ -595,47 +999,50 @@ * had been used before suspend */ -static int mark_unsafe_pages(struct pbe *pblist) +static int mark_unsafe_pages(struct memory_bitmap *bm) { struct zone *zone; - unsigned long zone_pfn; - struct pbe *p; - - if (!pblist) /* a sanity check */ - return -EINVAL; + unsigned long pfn, max_zone_pfn; /* Clear page flags */ for_each_zone (zone) { - for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn) - if (pfn_valid(zone_pfn + zone->zone_start_pfn)) - ClearPageNosaveFree(pfn_to_page(zone_pfn + - zone->zone_start_pfn)); + max_zone_pfn = zone->zone_start_pfn + zone->spanned_pages; + for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++) + if (pfn_valid(pfn)) + ClearPageNosaveFree(pfn_to_page(pfn)); } - /* Mark orig addresses */ - for_each_pbe (p, pblist) { - if (virt_addr_valid(p->orig_address)) - SetPageNosaveFree(virt_to_page(p->orig_address)); - else - return -EFAULT; - } + /* Mark pages that correspond to the "original" pfns as "unsafe" */ + memory_bm_position_reset(bm); + do { + pfn = memory_bm_next_pfn(bm); + if (likely(pfn != BM_END_OF_MAP)) { + if (likely(pfn_valid(pfn))) + SetPageNosaveFree(pfn_to_page(pfn)); + else + return -EFAULT; + } + } while (pfn != BM_END_OF_MAP); - unsafe_pages = 0; + allocated_unsafe_pages = 0; return 0; } -static void copy_page_backup_list(struct pbe *dst, struct pbe *src) +static void +duplicate_memory_bitmap(struct memory_bitmap *dst, struct memory_bitmap *src) { - /* We assume both lists contain the same number of elements */ - while (src) { - dst->orig_address = src->orig_address; - dst = dst->next; - src = src->next; + unsigned long pfn; + + memory_bm_position_reset(src); + pfn = memory_bm_next_pfn(src); + while (pfn != BM_END_OF_MAP) { + memory_bm_set_bit(dst, pfn); + pfn = memory_bm_next_pfn(src); } } -static int check_header(struct swsusp_info *info) +static inline int check_header(struct swsusp_info *info) { char *reason = NULL; @@ -662,19 +1069,14 @@ * load header - check the image header and copy data from it */ -static int load_header(struct snapshot_handle *handle, - struct swsusp_info *info) +static int +load_header(struct swsusp_info *info) { int error; - struct pbe *pblist; + restore_pblist = NULL; error = check_header(info); if (!error) { - pblist = alloc_pagedir(info->image_pages, GFP_ATOMIC, 0); - if (!pblist) - return -ENOMEM; - pagedir_nosave = pblist; - handle->pbe = pblist; nr_copy_pages = info->image_pages; nr_meta_pages = info->pages - info->image_pages - 1; } @@ -682,113 +1084,137 @@ } /** - * unpack_orig_addresses - copy the elements of @buf[] (1 page) to - * the PBEs in the list starting at @pbe + * unpack_orig_pfns - for each element of @buf[] (1 page at a time) set + * the corresponding bit in the memory bitmap @bm */ -static inline struct pbe *unpack_orig_addresses(unsigned long *buf, - struct pbe *pbe) +static inline void +unpack_orig_pfns(unsigned long *buf, struct memory_bitmap *bm) { int j; - for (j = 0; j < PAGE_SIZE / sizeof(long) && pbe; j++) { - pbe->orig_address = buf[j]; - pbe = pbe->next; + for (j = 0; j < PAGE_SIZE / sizeof(long); j++) { + if (unlikely(buf[j] == BM_END_OF_MAP)) + break; + + memory_bm_set_bit(bm, buf[j]); } - return pbe; } /** - * prepare_image - use metadata contained in the PBE list - * pointed to by pagedir_nosave to mark the pages that will - * be overwritten in the process of restoring the system - * memory state from the image ("unsafe" pages) and allocate - * memory for the image + * prepare_image - use the memory bitmap @bm to mark the pages that will + * be overwritten in the process of restoring the system memory state + * from the suspend image ("unsafe" pages) and allocate memory for the + * image. * - * The idea is to allocate the PBE list first and then - * allocate as many pages as it's needed for the image data, - * but not to assign these pages to the PBEs initially. - * Instead, we just mark them as allocated and create a list - * of "safe" which will be used later + * The idea is to allocate a new memory bitmap first and then allocate + * as many pages as needed for the image data, but not to assign these + * pages to specific tasks initially. Instead, we just mark them as + * allocated and create a list of "safe" pages that will be used later. */ -struct safe_page { - struct safe_page *next; - char padding[PAGE_SIZE - sizeof(void *)]; -}; +#define PBES_PER_LINKED_PAGE (LINKED_PAGE_DATA_SIZE / sizeof(struct pbe)) -static struct safe_page *safe_pages; +static struct linked_page *safe_pages_list; -static int prepare_image(struct snapshot_handle *handle) +static int +prepare_image(struct memory_bitmap *new_bm, struct memory_bitmap *bm) { - int error = 0; - unsigned int nr_pages = nr_copy_pages; - struct pbe *p, *pblist = NULL; + unsigned int nr_pages; + struct linked_page *sp_list, *lp; + int error; - p = pagedir_nosave; - error = mark_unsafe_pages(p); - if (!error) { - pblist = alloc_pagedir(nr_pages, GFP_ATOMIC, 1); - if (pblist) - copy_page_backup_list(pblist, p); - free_pagedir(p, 0); - if (!pblist) + error = mark_unsafe_pages(bm); + if (error) + goto Free; + + error = memory_bm_create(new_bm, GFP_ATOMIC, PG_SAFE); + if (error) + goto Free; + + duplicate_memory_bitmap(new_bm, bm); + memory_bm_free(bm, PG_UNSAFE_KEEP); + /* Reserve some safe pages for potential later use. + * + * NOTE: This way we make sure there will be enough safe pages for the + * chain_alloc() in get_buffer(). It is a bit wasteful, but + * nr_copy_pages cannot be greater than 50% of the memory anyway. + */ + sp_list = NULL; + /* nr_copy_pages cannot be lesser than allocated_unsafe_pages */ + nr_pages = nr_copy_pages - allocated_unsafe_pages; + nr_pages = DIV_ROUND_UP(nr_pages, PBES_PER_LINKED_PAGE); + while (nr_pages > 0) { + lp = alloc_image_page(GFP_ATOMIC, PG_SAFE); + if (!lp) { error = -ENOMEM; - } - safe_pages = NULL; - if (!error && nr_pages > unsafe_pages) { - nr_pages -= unsafe_pages; - while (nr_pages--) { - struct safe_page *ptr; - - ptr = (struct safe_page *)get_zeroed_page(GFP_ATOMIC); - if (!ptr) { - error = -ENOMEM; - break; - } - if (!PageNosaveFree(virt_to_page(ptr))) { - /* The page is "safe", add it to the list */ - ptr->next = safe_pages; - safe_pages = ptr; - } - /* Mark the page as allocated */ - SetPageNosave(virt_to_page(ptr)); - SetPageNosaveFree(virt_to_page(ptr)); + goto Free; } + lp->next = sp_list; + sp_list = lp; + nr_pages--; } - if (!error) { - pagedir_nosave = pblist; - } else { - handle->pbe = NULL; - swsusp_free(); + /* Preallocate memory for the image */ + safe_pages_list = NULL; + nr_pages = nr_copy_pages - allocated_unsafe_pages; + while (nr_pages > 0) { + lp = (struct linked_page *)get_zeroed_page(GFP_ATOMIC); + if (!lp) { + error = -ENOMEM; + goto Free; + } + if (!PageNosaveFree(virt_to_page(lp))) { + /* The page is "safe", add it to the list */ + lp->next = safe_pages_list; + safe_pages_list = lp; + } + /* Mark the page as allocated */ + SetPageNosave(virt_to_page(lp)); + SetPageNosaveFree(virt_to_page(lp)); + nr_pages--; } + /* Free the reserved safe pages so that chain_alloc() can use them */ + while (sp_list) { + lp = sp_list->next; + free_image_page(sp_list, PG_UNSAFE_CLEAR); + sp_list = lp; + } + return 0; + +Free: + swsusp_free(); return error; } -static void *get_buffer(struct snapshot_handle *handle) -{ - struct pbe *pbe = handle->pbe, *last = handle->last_pbe; - struct page *page = virt_to_page(pbe->orig_address); +/** + * get_buffer - compute the address that snapshot_write_next() should + * set for its caller to write to. + */ - if (PageNosave(page) && PageNosaveFree(page)) { - /* - * We have allocated the "original" page frame and we can - * use it directly to store the read page +static void *get_buffer(struct memory_bitmap *bm, struct chain_allocator *ca) +{ + struct pbe *pbe; + struct page *page = pfn_to_page(memory_bm_next_pfn(bm)); + + if (PageNosave(page) && PageNosaveFree(page)) + /* We have allocated the "original" page frame and we can + * use it directly to store the loaded page. */ - pbe->address = 0; - if (last && last->next) - last->next = NULL; - return (void *)pbe->orig_address; - } - /* - * The "original" page frame has not been allocated and we have to - * use a "safe" page frame to store the read page + return page_address(page); + + /* The "original" page frame has not been allocated and we have to + * use a "safe" page frame to store the loaded page. */ - pbe->address = (unsigned long)safe_pages; - safe_pages = safe_pages->next; - if (last) - last->next = pbe; - handle->last_pbe = pbe; + pbe = chain_alloc(ca, sizeof(struct pbe)); + if (!pbe) { + swsusp_free(); + return NULL; + } + pbe->orig_address = (unsigned long)page_address(page); + pbe->address = (unsigned long)safe_pages_list; + safe_pages_list = safe_pages_list->next; + pbe->next = restore_pblist; + restore_pblist = pbe; return (void *)pbe->address; } @@ -816,46 +1242,60 @@ int snapshot_write_next(struct snapshot_handle *handle, size_t count) { + static struct chain_allocator ca; int error = 0; - if (handle->prev && handle->page > nr_meta_pages + nr_copy_pages) + /* Check if we have already loaded the entire image */ + if (handle->prev && handle->cur > nr_meta_pages + nr_copy_pages) return 0; + if (!buffer) { /* This makes the buffer be freed by swsusp_free() */ - buffer = alloc_image_page(GFP_ATOMIC, 0); + buffer = alloc_image_page(GFP_ATOMIC, PG_ANY); if (!buffer) return -ENOMEM; } if (!handle->offset) handle->buffer = buffer; - if (handle->prev < handle->page) { - if (!handle->prev) { - error = load_header(handle, (struct swsusp_info *)buffer); + handle->sync_read = 1; + if (handle->prev < handle->cur) { + if (handle->prev == 0) { + error = load_header(buffer); if (error) return error; + + error = memory_bm_create(©_bm, GFP_ATOMIC, PG_ANY); + if (error) + return error; + } else if (handle->prev <= nr_meta_pages) { - handle->pbe = unpack_orig_addresses(buffer, handle->pbe); - if (!handle->pbe) { - error = prepare_image(handle); + unpack_orig_pfns(buffer, ©_bm); + if (handle->prev == nr_meta_pages) { + error = prepare_image(&orig_bm, ©_bm); if (error) return error; - handle->pbe = pagedir_nosave; - handle->last_pbe = NULL; - handle->buffer = get_buffer(handle); + + chain_init(&ca, GFP_ATOMIC, PG_SAFE); + memory_bm_position_reset(&orig_bm); + restore_pblist = NULL; + handle->buffer = get_buffer(&orig_bm, &ca); + handle->sync_read = 0; + if (!handle->buffer) + return -ENOMEM; } } else { - handle->pbe = handle->pbe->next; - handle->buffer = get_buffer(handle); + handle->buffer = get_buffer(&orig_bm, &ca); + handle->sync_read = 0; } - handle->prev = handle->page; + handle->prev = handle->cur; } - handle->buf_offset = handle->page_offset; - if (handle->page_offset + count >= PAGE_SIZE) { - count = PAGE_SIZE - handle->page_offset; - handle->page_offset = 0; - handle->page++; + handle->buf_offset = handle->cur_offset; + if (handle->cur_offset + count >= PAGE_SIZE) { + count = PAGE_SIZE - handle->cur_offset; + handle->cur_offset = 0; + handle->cur++; } else { - handle->page_offset += count; + handle->cur_offset += count; } handle->offset += count; return count; @@ -863,6 +1303,13 @@ int snapshot_image_loaded(struct snapshot_handle *handle) { - return !(!handle->pbe || handle->pbe->next || !nr_copy_pages || - handle->page <= nr_meta_pages + nr_copy_pages); + return !(!nr_copy_pages || + handle->cur <= nr_meta_pages + nr_copy_pages); +} + +void snapshot_free_unused_memory(struct snapshot_handle *handle) +{ + /* Free only if we have loaded the image entirely */ + if (handle->prev && handle->cur > nr_meta_pages + nr_copy_pages) + memory_bm_free(&orig_bm, PG_UNSAFE_CLEAR); }
diff --git a/kernel/power/swap.c b/kernel/power/swap.c index f1dd146b..9b2ee53 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c
@@ -22,6 +22,7 @@ #include <linux/device.h> #include <linux/buffer_head.h> #include <linux/bio.h> +#include <linux/blkdev.h> #include <linux/swap.h> #include <linux/swapops.h> #include <linux/pm.h> @@ -49,18 +50,16 @@ { int error; - rw_swap_page_sync(READ, - swp_entry(root_swap, 0), - virt_to_page((unsigned long)&swsusp_header)); + rw_swap_page_sync(READ, swp_entry(root_swap, 0), + virt_to_page((unsigned long)&swsusp_header), NULL); if (!memcmp("SWAP-SPACE",swsusp_header.sig, 10) || !memcmp("SWAPSPACE2",swsusp_header.sig, 10)) { memcpy(swsusp_header.orig_sig,swsusp_header.sig, 10); memcpy(swsusp_header.sig,SWSUSP_SIG, 10); swsusp_header.image = start; - error = rw_swap_page_sync(WRITE, - swp_entry(root_swap, 0), - virt_to_page((unsigned long) - &swsusp_header)); + error = rw_swap_page_sync(WRITE, swp_entry(root_swap, 0), + virt_to_page((unsigned long)&swsusp_header), + NULL); } else { pr_debug("swsusp: Partition is not swap space.\n"); error = -ENODEV; @@ -88,16 +87,37 @@ * write_page - Write one page to given swap location. * @buf: Address we're writing. * @offset: Offset of the swap page we're writing to. + * @bio_chain: Link the next write BIO here */ -static int write_page(void *buf, unsigned long offset) +static int write_page(void *buf, unsigned long offset, struct bio **bio_chain) { swp_entry_t entry; int error = -ENOSPC; if (offset) { + struct page *page = virt_to_page(buf); + + if (bio_chain) { + /* + * Whether or not we successfully allocated a copy page, + * we take a ref on the page here. It gets undone in + * wait_on_bio_chain(). + */ + struct page *page_copy; + page_copy = alloc_page(GFP_ATOMIC); + if (page_copy == NULL) { + WARN_ON_ONCE(1); + bio_chain = NULL; /* Go synchronous */ + get_page(page); + } else { + memcpy(page_address(page_copy), + page_address(page), PAGE_SIZE); + page = page_copy; + } + } entry = swp_entry(root_swap, offset); - error = rw_swap_page_sync(WRITE, entry, virt_to_page(buf)); + error = rw_swap_page_sync(WRITE, entry, page, bio_chain); } return error; } @@ -146,6 +166,26 @@ handle->bitmap = NULL; } +static void show_speed(struct timeval *start, struct timeval *stop, + unsigned nr_pages, char *msg) +{ + s64 elapsed_centisecs64; + int centisecs; + int k; + int kps; + + elapsed_centisecs64 = timeval_to_ns(stop) - timeval_to_ns(start); + do_div(elapsed_centisecs64, NSEC_PER_SEC / 100); + centisecs = elapsed_centisecs64; + if (centisecs == 0) + centisecs = 1; /* avoid div-by-zero */ + k = nr_pages * (PAGE_SIZE / 1024); + kps = (k * 100) / centisecs; + printk("%s %d kbytes in %d.%02d seconds (%d.%02d MB/s)\n", msg, k, + centisecs / 100, centisecs % 100, + kps / 1000, (kps % 1000) / 10); +} + static int get_swap_writer(struct swap_map_handle *handle) { handle->cur = (struct swap_map_page *)get_zeroed_page(GFP_KERNEL); @@ -165,37 +205,70 @@ return 0; } -static int swap_write_page(struct swap_map_handle *handle, void *buf) +static int wait_on_bio_chain(struct bio **bio_chain) { - int error; + struct bio *bio; + struct bio *next_bio; + int ret = 0; + + if (bio_chain == NULL) + return 0; + + bio = *bio_chain; + if (bio == NULL) + return 0; + while (bio) { + struct page *page; + + next_bio = bio->bi_private; + page = bio->bi_io_vec[0].bv_page; + wait_on_page_locked(page); + if (!PageUptodate(page) || PageError(page)) + ret = -EIO; + put_page(page); + bio_put(bio); + bio = next_bio; + } + *bio_chain = NULL; + return ret; +} + +static int swap_write_page(struct swap_map_handle *handle, void *buf, + struct bio **bio_chain) +{ + int error = 0; unsigned long offset; if (!handle->cur) return -EINVAL; offset = alloc_swap_page(root_swap, handle->bitmap); - error = write_page(buf, offset); + error = write_page(buf, offset, bio_chain); if (error) return error; handle->cur->entries[handle->k++] = offset; if (handle->k >= MAP_PAGE_ENTRIES) { + error = wait_on_bio_chain(bio_chain); + if (error) + goto out; offset = alloc_swap_page(root_swap, handle->bitmap); if (!offset) return -ENOSPC; handle->cur->next_swap = offset; - error = write_page(handle->cur, handle->cur_swap); + error = write_page(handle->cur, handle->cur_swap, NULL); if (error) - return error; + goto out; memset(handle->cur, 0, PAGE_SIZE); handle->cur_swap = offset; handle->k = 0; } - return 0; +out: + return error; } static int flush_swap_writer(struct swap_map_handle *handle) { if (handle->cur && handle->cur_swap) - return write_page(handle->cur, handle->cur_swap); + return write_page(handle->cur, handle->cur_swap, NULL); else return -EINVAL; } @@ -206,21 +279,29 @@ static int save_image(struct swap_map_handle *handle, struct snapshot_handle *snapshot, - unsigned int nr_pages) + unsigned int nr_to_write) { unsigned int m; int ret; int error = 0; + int nr_pages; + int err2; + struct bio *bio; + struct timeval start; + struct timeval stop; - printk("Saving image data pages (%u pages) ... ", nr_pages); - m = nr_pages / 100; + printk("Saving image data pages (%u pages) ... ", nr_to_write); + m = nr_to_write / 100; if (!m) m = 1; nr_pages = 0; + bio = NULL; + do_gettimeofday(&start); do { ret = snapshot_read_next(snapshot, PAGE_SIZE); if (ret > 0) { - error = swap_write_page(handle, data_of(*snapshot)); + error = swap_write_page(handle, data_of(*snapshot), + &bio); if (error) break; if (!(nr_pages % m)) @@ -228,8 +309,13 @@ nr_pages++; } } while (ret > 0); + err2 = wait_on_bio_chain(&bio); + do_gettimeofday(&stop); + if (!error) + error = err2; if (!error) printk("\b\b\b\bdone\n"); + show_speed(&start, &stop, nr_to_write, "Wrote"); return error; } @@ -245,8 +331,7 @@ unsigned int free_swap = count_swap_pages(root_swap, 1); pr_debug("swsusp: free swap pages: %u\n", free_swap); - return free_swap > (nr_pages + PAGES_FOR_IO + - (nr_pages + PBES_PER_PAGE - 1) / PBES_PER_PAGE); + return free_swap > nr_pages + PAGES_FOR_IO; } /** @@ -266,7 +351,8 @@ int error; if ((error = swsusp_swap_check())) { - printk(KERN_ERR "swsusp: Cannot find swap device, try swapon -a.\n"); + printk(KERN_ERR "swsusp: Cannot find swap device, try " + "swapon -a.\n"); return error; } memset(&snapshot, 0, sizeof(struct snapshot_handle)); @@ -281,7 +367,7 @@ error = get_swap_writer(&handle); if (!error) { unsigned long start = handle.cur_swap; - error = swap_write_page(&handle, header); + error = swap_write_page(&handle, header, NULL); if (!error) error = save_image(&handle, &snapshot, header->pages - 1); @@ -298,27 +384,6 @@ return error; } -/* - * Using bio to read from swap. - * This code requires a bit more work than just using buffer heads - * but, it is the recommended way for 2.5/2.6. - * The following are to signal the beginning and end of I/O. Bios - * finish asynchronously, while we want them to happen synchronously. - * A simple atomic_t, and a wait loop take care of this problem. - */ - -static atomic_t io_done = ATOMIC_INIT(0); - -static int end_io(struct bio *bio, unsigned int num, int err) -{ - if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) { - printk(KERN_ERR "I/O error reading swsusp image.\n"); - return -EIO; - } - atomic_set(&io_done, 0); - return 0; -} - static struct block_device *resume_bdev; /** @@ -326,15 +391,15 @@ * @rw: READ or WRITE. * @off physical offset of page. * @page: page we're reading or writing. + * @bio_chain: list of pending biod (for async reading) * * Straight from the textbook - allocate and initialize the bio. - * If we're writing, make sure the page is marked as dirty. - * Then submit it and wait. + * If we're reading, make sure the page is marked as dirty. + * Then submit it and, if @bio_chain == NULL, wait. */ - -static int submit(int rw, pgoff_t page_off, void *page) +static int submit(int rw, pgoff_t page_off, struct page *page, + struct bio **bio_chain) { - int error = 0; struct bio *bio; bio = bio_alloc(GFP_ATOMIC, 1); @@ -342,33 +407,40 @@ return -ENOMEM; bio->bi_sector = page_off * (PAGE_SIZE >> 9); bio->bi_bdev = resume_bdev; - bio->bi_end_io = end_io; + bio->bi_end_io = end_swap_bio_read; - if (bio_add_page(bio, virt_to_page(page), PAGE_SIZE, 0) < PAGE_SIZE) { - printk("swsusp: ERROR: adding page to bio at %ld\n",page_off); - error = -EFAULT; - goto Done; + if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE) { + printk("swsusp: ERROR: adding page to bio at %ld\n", page_off); + bio_put(bio); + return -EFAULT; } - atomic_set(&io_done, 1); - submit_bio(rw | (1 << BIO_RW_SYNC), bio); - while (atomic_read(&io_done)) - yield(); - if (rw == READ) - bio_set_pages_dirty(bio); - Done: - bio_put(bio); - return error; + lock_page(page); + bio_get(bio); + + if (bio_chain == NULL) { + submit_bio(rw | (1 << BIO_RW_SYNC), bio); + wait_on_page_locked(page); + if (rw == READ) + bio_set_pages_dirty(bio); + bio_put(bio); + } else { + get_page(page); + bio->bi_private = *bio_chain; + *bio_chain = bio; + submit_bio(rw | (1 << BIO_RW_SYNC), bio); + } + return 0; } -static int bio_read_page(pgoff_t page_off, void *page) +static int bio_read_page(pgoff_t page_off, void *addr, struct bio **bio_chain) { - return submit(READ, page_off, page); + return submit(READ, page_off, virt_to_page(addr), bio_chain); } -static int bio_write_page(pgoff_t page_off, void *page) +static int bio_write_page(pgoff_t page_off, void *addr) { - return submit(WRITE, page_off, page); + return submit(WRITE, page_off, virt_to_page(addr), NULL); } /** @@ -393,7 +465,7 @@ handle->cur = (struct swap_map_page *)get_zeroed_page(GFP_ATOMIC); if (!handle->cur) return -ENOMEM; - error = bio_read_page(swp_offset(start), handle->cur); + error = bio_read_page(swp_offset(start), handle->cur, NULL); if (error) { release_swap_reader(handle); return error; @@ -402,7 +474,8 @@ return 0; } -static int swap_read_page(struct swap_map_handle *handle, void *buf) +static int swap_read_page(struct swap_map_handle *handle, void *buf, + struct bio **bio_chain) { unsigned long offset; int error; @@ -412,16 +485,17 @@ offset = handle->cur->entries[handle->k]; if (!offset) return -EFAULT; - error = bio_read_page(offset, buf); + error = bio_read_page(offset, buf, bio_chain); if (error) return error; if (++handle->k >= MAP_PAGE_ENTRIES) { + error = wait_on_bio_chain(bio_chain); handle->k = 0; offset = handle->cur->next_swap; if (!offset) release_swap_reader(handle); - else - error = bio_read_page(offset, handle->cur); + else if (!error) + error = bio_read_page(offset, handle->cur, NULL); } return error; } @@ -434,33 +508,49 @@ static int load_image(struct swap_map_handle *handle, struct snapshot_handle *snapshot, - unsigned int nr_pages) + unsigned int nr_to_read) { unsigned int m; - int ret; int error = 0; + struct timeval start; + struct timeval stop; + struct bio *bio; + int err2; + unsigned nr_pages; - printk("Loading image data pages (%u pages) ... ", nr_pages); - m = nr_pages / 100; + printk("Loading image data pages (%u pages) ... ", nr_to_read); + m = nr_to_read / 100; if (!m) m = 1; nr_pages = 0; - do { - ret = snapshot_write_next(snapshot, PAGE_SIZE); - if (ret > 0) { - error = swap_read_page(handle, data_of(*snapshot)); - if (error) - break; - if (!(nr_pages % m)) - printk("\b\b\b\b%3d%%", nr_pages / m); - nr_pages++; - } - } while (ret > 0); + bio = NULL; + do_gettimeofday(&start); + for ( ; ; ) { + error = snapshot_write_next(snapshot, PAGE_SIZE); + if (error <= 0) + break; + error = swap_read_page(handle, data_of(*snapshot), &bio); + if (error) + break; + if (snapshot->sync_read) + error = wait_on_bio_chain(&bio); + if (error) + break; + if (!(nr_pages % m)) + printk("\b\b\b\b%3d%%", nr_pages / m); + nr_pages++; + } + err2 = wait_on_bio_chain(&bio); + do_gettimeofday(&stop); + if (!error) + error = err2; if (!error) { printk("\b\b\b\bdone\n"); + snapshot_free_unused_memory(snapshot); if (!snapshot_image_loaded(snapshot)) error = -ENODATA; } + show_speed(&start, &stop, nr_to_read, "Read"); return error; } @@ -483,7 +573,7 @@ header = (struct swsusp_info *)data_of(snapshot); error = get_swap_reader(&handle, swsusp_header.image); if (!error) - error = swap_read_page(&handle, header); + error = swap_read_page(&handle, header, NULL); if (!error) error = load_image(&handle, &snapshot, header->pages - 1); release_swap_reader(&handle); @@ -509,7 +599,7 @@ if (!IS_ERR(resume_bdev)) { set_blocksize(resume_bdev, PAGE_SIZE); memset(&swsusp_header, 0, sizeof(swsusp_header)); - if ((error = bio_read_page(0, &swsusp_header))) + if ((error = bio_read_page(0, &swsusp_header, NULL))) return error; if (!memcmp(SWSUSP_SIG, swsusp_header.sig, 10)) { memcpy(swsusp_header.sig, swsusp_header.orig_sig, 10);
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c index 17f669c..0b66659 100644 --- a/kernel/power/swsusp.c +++ b/kernel/power/swsusp.c
@@ -193,14 +193,13 @@ printk("Shrinking memory... "); do { size = 2 * count_highmem_pages(); - size += size / 50 + count_data_pages(); - size += (size + PBES_PER_PAGE - 1) / PBES_PER_PAGE + - PAGES_FOR_IO; + size += size / 50 + count_data_pages() + PAGES_FOR_IO; tmp = size; for_each_zone (zone) if (!is_highmem(zone) && populated_zone(zone)) { tmp -= zone->free_pages; tmp += zone->lowmem_reserve[ZONE_NORMAL]; + tmp += snapshot_additional_pages(zone); } if (tmp > 0) { tmp = __shrink_memory(tmp); @@ -248,6 +247,9 @@ restore_processor_state(); Restore_highmem: restore_highmem(); + /* NOTE: device_power_up() is just a resume() for devices + * that suspended with irqs off ... no overall powerup. + */ device_power_up(); Enable_irqs: local_irq_enable(); @@ -257,8 +259,12 @@ int swsusp_resume(void) { int error; + local_irq_disable(); - if (device_power_down(PMSG_FREEZE)) + /* NOTE: device_power_down() is just a suspend() with irqs off; + * it has no special "power things down" semantics + */ + if (device_power_down(PMSG_PRETHAW)) printk(KERN_ERR "Some devices failed to power down, very bad\n"); /* We'll ignore saved state, but this gets preempt count (etc) right */ save_processor_state();
diff --git a/kernel/power/user.c b/kernel/power/user.c index 3f1539f..72825c8 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c
@@ -19,6 +19,7 @@ #include <linux/swapops.h> #include <linux/pm.h> #include <linux/fs.h> +#include <linux/cpu.h> #include <asm/uaccess.h> @@ -139,12 +140,15 @@ if (data->frozen) break; down(&pm_sem); - disable_nonboot_cpus(); - if (freeze_processes()) { - thaw_processes(); - enable_nonboot_cpus(); - error = -EBUSY; + error = disable_nonboot_cpus(); + if (!error) { + error = freeze_processes(); + if (error) { + thaw_processes(); + error = -EBUSY; + } } + enable_nonboot_cpus(); up(&pm_sem); if (!error) data->frozen = 1; @@ -189,9 +193,10 @@ error = -EPERM; break; } + snapshot_free_unused_memory(&data->handle); down(&pm_sem); pm_prepare_console(); - error = device_suspend(PMSG_FREEZE); + error = device_suspend(PMSG_PRETHAW); if (!error) { error = swsusp_resume(); device_resume();
diff --git a/kernel/printk.c b/kernel/printk.c index 1149365..771f5e8 100644 --- a/kernel/printk.c +++ b/kernel/printk.c
@@ -721,6 +721,7 @@ return 0; } +#ifndef CONFIG_DISABLE_CONSOLE_SUSPEND /** * suspend_console - suspend the console subsystem * @@ -728,6 +729,7 @@ */ void suspend_console(void) { + printk("Suspending console(s)\n"); acquire_console_sem(); console_suspended = 1; } @@ -737,6 +739,7 @@ console_suspended = 0; release_console_sem(); } +#endif /* CONFIG_DISABLE_CONSOLE_SUSPEND */ /** * acquire_console_sem - lock the console system for exclusive use.
diff --git a/kernel/profile.c b/kernel/profile.c index d5bd75e..fb660c7 100644 --- a/kernel/profile.c +++ b/kernel/profile.c
@@ -309,13 +309,17 @@ node = cpu_to_node(cpu); per_cpu(cpu_profile_flip, cpu) = 0; if (!per_cpu(cpu_profile_hits, cpu)[1]) { - page = alloc_pages_node(node, GFP_KERNEL | __GFP_ZERO, 0); + page = alloc_pages_node(node, + GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, + 0); if (!page) return NOTIFY_BAD; per_cpu(cpu_profile_hits, cpu)[1] = page_address(page); } if (!per_cpu(cpu_profile_hits, cpu)[0]) { - page = alloc_pages_node(node, GFP_KERNEL | __GFP_ZERO, 0); + page = alloc_pages_node(node, + GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, + 0); if (!page) goto out_free; per_cpu(cpu_profile_hits, cpu)[0] = page_address(page); @@ -491,12 +495,16 @@ int node = cpu_to_node(cpu); struct page *page; - page = alloc_pages_node(node, GFP_KERNEL | __GFP_ZERO, 0); + page = alloc_pages_node(node, + GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, + 0); if (!page) goto out_cleanup; per_cpu(cpu_profile_hits, cpu)[1] = (struct profile_hit *)page_address(page); - page = alloc_pages_node(node, GFP_KERNEL | __GFP_ZERO, 0); + page = alloc_pages_node(node, + GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, + 0); if (!page) goto out_cleanup; per_cpu(cpu_profile_hits, cpu)[0]
diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 9a111f7..8aad033 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c
@@ -241,60 +241,6 @@ return 0; } -/* - * Access another process' address space. - * Source/target buffer must be kernel space, - * Do not walk the page table directly, use get_user_pages - */ - -int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write) -{ - struct mm_struct *mm; - struct vm_area_struct *vma; - struct page *page; - void *old_buf = buf; - - mm = get_task_mm(tsk); - if (!mm) - return 0; - - down_read(&mm->mmap_sem); - /* ignore errors, just check how much was sucessfully transfered */ - while (len) { - int bytes, ret, offset; - void *maddr; - - ret = get_user_pages(tsk, mm, addr, 1, - write, 1, &page, &vma); - if (ret <= 0) - break; - - bytes = len; - offset = addr & (PAGE_SIZE-1); - if (bytes > PAGE_SIZE-offset) - bytes = PAGE_SIZE-offset; - - maddr = kmap(page); - if (write) { - copy_to_user_page(vma, page, addr, - maddr + offset, buf, bytes); - set_page_dirty_lock(page); - } else { - copy_from_user_page(vma, page, addr, - buf, maddr + offset, bytes); - } - kunmap(page); - page_cache_release(page); - len -= bytes; - buf += bytes; - addr += bytes; - } - up_read(&mm->mmap_sem); - mmput(mm); - - return buf - old_buf; -} - int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst, int len) { int copied = 0;
diff --git a/kernel/relay.c b/kernel/relay.c index 33345e7..85786ff 100644 --- a/kernel/relay.c +++ b/kernel/relay.c
@@ -669,7 +669,7 @@ */ static int relay_file_open(struct inode *inode, struct file *filp) { - struct rchan_buf *buf = inode->u.generic_ip; + struct rchan_buf *buf = inode->i_private; kref_get(&buf->kref); filp->private_data = buf;
diff --git a/kernel/resource.c b/kernel/resource.c index 4628643..9db38a1 100644 --- a/kernel/resource.c +++ b/kernel/resource.c
@@ -344,12 +344,11 @@ * * Returns 0 on success, -EBUSY if the resource can't be inserted. * - * This function is equivalent of request_resource when no conflict + * This function is equivalent to request_resource when no conflict * happens. If a conflict happens, and the conflicting resources * entirely fit within the range of the new resource, then the new - * resource is inserted and the conflicting resources become childs of - * the new resource. Otherwise the new resource becomes the child of - * the conflicting resource + * resource is inserted and the conflicting resources become children of + * the new resource. */ int insert_resource(struct resource *parent, struct resource *new) { @@ -357,20 +356,21 @@ struct resource *first, *next; write_lock(&resource_lock); - begin: - result = 0; - first = __request_resource(parent, new); - if (!first) - goto out; - result = -EBUSY; - if (first == parent) - goto out; + for (;; parent = first) { + result = 0; + first = __request_resource(parent, new); + if (!first) + goto out; - /* Resource fully contained by the clashing resource? Recurse into it */ - if (first->start <= new->start && first->end >= new->end) { - parent = first; - goto begin; + result = -EBUSY; + if (first == parent) + goto out; + + if ((first->start > new->start) || (first->end < new->end)) + break; + if ((first->start == new->start) && (first->end == new->end)) + break; } for (next = first; ; next = next->sibling) {
diff --git a/kernel/sched.c b/kernel/sched.c index a234fbe..5c848fd 100644 --- a/kernel/sched.c +++ b/kernel/sched.c
@@ -238,6 +238,7 @@ /* For active balancing */ int active_balance; int push_cpu; + int cpu; /* cpu of this runqueue */ struct task_struct *migration_thread; struct list_head migration_queue; @@ -267,6 +268,15 @@ static DEFINE_PER_CPU(struct rq, runqueues); +static inline int cpu_of(struct rq *rq) +{ +#ifdef CONFIG_SMP + return rq->cpu; +#else + return 0; +#endif +} + /* * The domain tree (rq->sd) is protected by RCU's quiescent state transition. * See detach_destroy_domains: synchronize_sched for details. @@ -2211,7 +2221,8 @@ */ static struct sched_group * find_busiest_group(struct sched_domain *sd, int this_cpu, - unsigned long *imbalance, enum idle_type idle, int *sd_idle) + unsigned long *imbalance, enum idle_type idle, int *sd_idle, + cpumask_t *cpus) { struct sched_group *busiest = NULL, *this = NULL, *group = sd->groups; unsigned long max_load, avg_load, total_load, this_load, total_pwr; @@ -2248,7 +2259,12 @@ sum_weighted_load = sum_nr_running = avg_load = 0; for_each_cpu_mask(i, group->cpumask) { - struct rq *rq = cpu_rq(i); + struct rq *rq; + + if (!cpu_isset(i, *cpus)) + continue; + + rq = cpu_rq(i); if (*sd_idle && !idle_cpu(i)) *sd_idle = 0; @@ -2466,13 +2482,17 @@ */ static struct rq * find_busiest_queue(struct sched_group *group, enum idle_type idle, - unsigned long imbalance) + unsigned long imbalance, cpumask_t *cpus) { struct rq *busiest = NULL, *rq; unsigned long max_load = 0; int i; for_each_cpu_mask(i, group->cpumask) { + + if (!cpu_isset(i, *cpus)) + continue; + rq = cpu_rq(i); if (rq->nr_running == 1 && rq->raw_weighted_load > imbalance) @@ -2511,6 +2531,7 @@ struct sched_group *group; unsigned long imbalance; struct rq *busiest; + cpumask_t cpus = CPU_MASK_ALL; if (idle != NOT_IDLE && sd->flags & SD_SHARE_CPUPOWER && !sched_smt_power_savings) @@ -2518,13 +2539,15 @@ schedstat_inc(sd, lb_cnt[idle]); - group = find_busiest_group(sd, this_cpu, &imbalance, idle, &sd_idle); +redo: + group = find_busiest_group(sd, this_cpu, &imbalance, idle, &sd_idle, + &cpus); if (!group) { schedstat_inc(sd, lb_nobusyg[idle]); goto out_balanced; } - busiest = find_busiest_queue(group, idle, imbalance); + busiest = find_busiest_queue(group, idle, imbalance, &cpus); if (!busiest) { schedstat_inc(sd, lb_nobusyq[idle]); goto out_balanced; @@ -2549,8 +2572,12 @@ double_rq_unlock(this_rq, busiest); /* All tasks on this runqueue were pinned by CPU affinity */ - if (unlikely(all_pinned)) + if (unlikely(all_pinned)) { + cpu_clear(cpu_of(busiest), cpus); + if (!cpus_empty(cpus)) + goto redo; goto out_balanced; + } } if (!nr_moved) { @@ -2639,18 +2666,22 @@ unsigned long imbalance; int nr_moved = 0; int sd_idle = 0; + cpumask_t cpus = CPU_MASK_ALL; if (sd->flags & SD_SHARE_CPUPOWER && !sched_smt_power_savings) sd_idle = 1; schedstat_inc(sd, lb_cnt[NEWLY_IDLE]); - group = find_busiest_group(sd, this_cpu, &imbalance, NEWLY_IDLE, &sd_idle); +redo: + group = find_busiest_group(sd, this_cpu, &imbalance, NEWLY_IDLE, + &sd_idle, &cpus); if (!group) { schedstat_inc(sd, lb_nobusyg[NEWLY_IDLE]); goto out_balanced; } - busiest = find_busiest_queue(group, NEWLY_IDLE, imbalance); + busiest = find_busiest_queue(group, NEWLY_IDLE, imbalance, + &cpus); if (!busiest) { schedstat_inc(sd, lb_nobusyq[NEWLY_IDLE]); goto out_balanced; @@ -2668,6 +2699,12 @@ minus_1_or_zero(busiest->nr_running), imbalance, sd, NEWLY_IDLE, NULL); spin_unlock(&busiest->lock); + + if (!nr_moved) { + cpu_clear(cpu_of(busiest), cpus); + if (!cpus_empty(cpus)) + goto redo; + } } if (!nr_moved) { @@ -6747,6 +6784,7 @@ rq->cpu_load[j] = 0; rq->active_balance = 0; rq->push_cpu = 0; + rq->cpu = i; rq->migration_thread = NULL; INIT_LIST_HEAD(&rq->migration_queue); #endif
diff --git a/kernel/signal.c b/kernel/signal.c index bfdb5686..05853a7 100644 --- a/kernel/signal.c +++ b/kernel/signal.c
@@ -2577,6 +2577,11 @@ } #endif /* __ARCH_WANT_SYS_RT_SIGSUSPEND */ +__attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma) +{ + return NULL; +} + void __init signals_init(void) { sigqueue_cachep =
diff --git a/kernel/spinlock.c b/kernel/spinlock.c index fb524b0..9644a41 100644 --- a/kernel/spinlock.c +++ b/kernel/spinlock.c
@@ -7,6 +7,11 @@ * * This file contains the spinlock/rwlock implementations for the * SMP and the DEBUG_SPINLOCK cases. (UP-nondebug inlines them) + * + * Note that some architectures have special knowledge about the + * stack frames of these functions in their profile_pc. If you + * change anything significant here that could change the stack + * frame contact the architecture maintainers. */ #include <linux/linkage.h>
diff --git a/kernel/sys.c b/kernel/sys.c index e236f98..3f89477 100644 --- a/kernel/sys.c +++ b/kernel/sys.c
@@ -28,6 +28,7 @@ #include <linux/tty.h> #include <linux/signal.h> #include <linux/cn_proc.h> +#include <linux/getcpu.h> #include <linux/compat.h> #include <linux/syscalls.h> @@ -2062,3 +2063,33 @@ } return error; } + +asmlinkage long sys_getcpu(unsigned __user *cpup, unsigned __user *nodep, + struct getcpu_cache __user *cache) +{ + int err = 0; + int cpu = raw_smp_processor_id(); + if (cpup) + err |= put_user(cpu, cpup); + if (nodep) + err |= put_user(cpu_to_node(cpu), nodep); + if (cache) { + /* + * The cache is not needed for this implementation, + * but make sure user programs pass something + * valid. vsyscall implementations can instead make + * good use of the cache. Only use t0 and t1 because + * these are available in both 32bit and 64bit ABI (no + * need for a compat_getcpu). 32bit has enough + * padding + */ + unsigned long t0, t1; + get_user(t0, &cache->t0); + get_user(t1, &cache->t1); + t0++; + t1++; + put_user(t0, &cache->t0); + put_user(t1, &cache->t1); + } + return err ? -EFAULT : 0; +}
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 362a0cc..8bfa7d1 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c
@@ -76,8 +76,9 @@ #if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86) int unknown_nmi_panic; -extern int proc_unknown_nmi_panic(ctl_table *, int, struct file *, - void __user *, size_t *, loff_t *); +int nmi_watchdog_enabled; +extern int proc_nmi_enabled(struct ctl_table *, int , struct file *, + void __user *, size_t *, loff_t *); #endif /* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */ @@ -136,8 +137,11 @@ extern int max_lock_depth; #endif -static int parse_table(int __user *, int, void __user *, size_t __user *, void __user *, size_t, - ctl_table *, void **); +#ifdef CONFIG_SYSCTL_SYSCALL +static int parse_table(int __user *, int, void __user *, size_t __user *, + void __user *, size_t, ctl_table *, void **); +#endif + static int proc_doutsstring(ctl_table *table, int write, struct file *filp, void __user *buffer, size_t *lenp, loff_t *ppos); @@ -164,7 +168,7 @@ /* /proc declarations: */ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_PROC_SYSCTL static ssize_t proc_readsys(struct file *, char __user *, size_t, loff_t *); static ssize_t proc_writesys(struct file *, const char __user *, size_t, loff_t *); @@ -628,11 +632,27 @@ .data = &unknown_nmi_panic, .maxlen = sizeof (int), .mode = 0644, - .proc_handler = &proc_unknown_nmi_panic, + .proc_handler = &proc_dointvec, + }, + { + .ctl_name = KERN_NMI_WATCHDOG, + .procname = "nmi_watchdog", + .data = &nmi_watchdog_enabled, + .maxlen = sizeof (int), + .mode = 0644, + .proc_handler = &proc_nmi_enabled, }, #endif #if defined(CONFIG_X86) { + .ctl_name = KERN_PANIC_ON_NMI, + .procname = "panic_on_unrecovered_nmi", + .data = &panic_on_unrecovered_nmi, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec, + }, + { .ctl_name = KERN_BOOTLOADER_TYPE, .procname = "bootloader_type", .data = &bootloader_type, @@ -943,6 +963,17 @@ .extra1 = &zero, .extra2 = &one_hundred, }, + { + .ctl_name = VM_MIN_SLAB, + .procname = "min_slab_ratio", + .data = &sysctl_min_slab_ratio, + .maxlen = sizeof(sysctl_min_slab_ratio), + .mode = 0644, + .proc_handler = &sysctl_min_slab_ratio_sysctl_handler, + .strategy = &sysctl_intvec, + .extra1 = &zero, + .extra2 = &one_hundred, + }, #endif #ifdef CONFIG_X86_32 { @@ -1138,12 +1169,13 @@ void __init sysctl_init(void) { -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_PROC_SYSCTL register_proc_table(root_table, proc_sys_root, &root_table_header); init_irq_proc(); #endif } +#ifdef CONFIG_SYSCTL_SYSCALL int do_sysctl(int __user *name, int nlen, void __user *oldval, size_t __user *oldlenp, void __user *newval, size_t newlen) { @@ -1197,6 +1229,7 @@ unlock_kernel(); return error; } +#endif /* CONFIG_SYSCTL_SYSCALL */ /* * ctl_perm does NOT grant the superuser all rights automatically, because @@ -1223,6 +1256,7 @@ return test_perm(table->mode, op); } +#ifdef CONFIG_SYSCTL_SYSCALL static int parse_table(int __user *name, int nlen, void __user *oldval, size_t __user *oldlenp, void __user *newval, size_t newlen, @@ -1312,6 +1346,7 @@ } return 0; } +#endif /* CONFIG_SYSCTL_SYSCALL */ /** * register_sysctl_table - register a sysctl hierarchy @@ -1399,7 +1434,7 @@ else list_add_tail(&tmp->ctl_entry, &root_table_header.ctl_entry); spin_unlock(&sysctl_lock); -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_PROC_SYSCTL register_proc_table(table, proc_sys_root, tmp); #endif return tmp; @@ -1417,18 +1452,31 @@ might_sleep(); spin_lock(&sysctl_lock); start_unregistering(header); -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_PROC_SYSCTL unregister_proc_table(header->ctl_table, proc_sys_root); #endif spin_unlock(&sysctl_lock); kfree(header); } +#else /* !CONFIG_SYSCTL */ +struct ctl_table_header * register_sysctl_table(ctl_table * table, + int insert_at_head) +{ + return NULL; +} + +void unregister_sysctl_table(struct ctl_table_header * table) +{ +} + +#endif /* CONFIG_SYSCTL */ + /* * /proc/sys support */ -#ifdef CONFIG_PROC_FS +#ifdef CONFIG_PROC_SYSCTL /* Scan the sysctl entries in table and add them all into /proc */ static void register_proc_table(ctl_table * table, struct proc_dir_entry *root, void *set) @@ -2290,6 +2338,7 @@ #endif /* CONFIG_PROC_FS */ +#ifdef CONFIG_SYSCTL_SYSCALL /* * General sysctl support routines */ @@ -2432,11 +2481,19 @@ return 1; } -#else /* CONFIG_SYSCTL */ +#else /* CONFIG_SYSCTL_SYSCALL */ asmlinkage long sys_sysctl(struct __sysctl_args __user *args) { + static int msg_count; + + if (msg_count < 5) { + msg_count++; + printk(KERN_INFO + "warning: process `%s' used the removed sysctl " + "system call\n", current->comm); + } return -ENOSYS; } @@ -2468,73 +2525,7 @@ return -ENOSYS; } -int proc_dostring(ctl_table *table, int write, struct file *filp, - void __user *buffer, size_t *lenp, loff_t *ppos) -{ - return -ENOSYS; -} - -int proc_dointvec(ctl_table *table, int write, struct file *filp, - void __user *buffer, size_t *lenp, loff_t *ppos) -{ - return -ENOSYS; -} - -int proc_dointvec_bset(ctl_table *table, int write, struct file *filp, - void __user *buffer, size_t *lenp, loff_t *ppos) -{ - return -ENOSYS; -} - -int proc_dointvec_minmax(ctl_table *table, int write, struct file *filp, - void __user *buffer, size_t *lenp, loff_t *ppos) -{ - return -ENOSYS; -} - -int proc_dointvec_jiffies(ctl_table *table, int write, struct file *filp, - void __user *buffer, size_t *lenp, loff_t *ppos) -{ - return -ENOSYS; -} - -int proc_dointvec_userhz_jiffies(ctl_table *table, int write, struct file *filp, - void __user *buffer, size_t *lenp, loff_t *ppos) -{ - return -ENOSYS; -} - -int proc_dointvec_ms_jiffies(ctl_table *table, int write, struct file *filp, - void __user *buffer, size_t *lenp, loff_t *ppos) -{ - return -ENOSYS; -} - -int proc_doulongvec_minmax(ctl_table *table, int write, struct file *filp, - void __user *buffer, size_t *lenp, loff_t *ppos) -{ - return -ENOSYS; -} - -int proc_doulongvec_ms_jiffies_minmax(ctl_table *table, int write, - struct file *filp, - void __user *buffer, - size_t *lenp, loff_t *ppos) -{ - return -ENOSYS; -} - -struct ctl_table_header * register_sysctl_table(ctl_table * table, - int insert_at_head) -{ - return NULL; -} - -void unregister_sysctl_table(struct ctl_table_header * table) -{ -} - -#endif /* CONFIG_SYSCTL */ +#endif /* CONFIG_SYSCTL_SYSCALL */ /* * No sense putting this after each symbol definition, twice,
diff --git a/kernel/unwind.c b/kernel/unwind.c index f69c804..3430475 100644 --- a/kernel/unwind.c +++ b/kernel/unwind.c
@@ -603,6 +603,7 @@ #define FRAME_REG(r, t) (((t *)frame)[reg_info[r].offs]) const u32 *fde = NULL, *cie = NULL; const u8 *ptr = NULL, *end = NULL; + unsigned long pc = UNW_PC(frame) - frame->call_frame; unsigned long startLoc = 0, endLoc = 0, cfa; unsigned i; signed ptrType = -1; @@ -612,7 +613,7 @@ if (UNW_PC(frame) == 0) return -EINVAL; - if ((table = find_table(UNW_PC(frame))) != NULL + if ((table = find_table(pc)) != NULL && !(table->size & (sizeof(*fde) - 1))) { unsigned long tableSize = table->size; @@ -647,7 +648,7 @@ ptrType & DW_EH_PE_indirect ? ptrType : ptrType & (DW_EH_PE_FORM|DW_EH_PE_signed)); - if (UNW_PC(frame) >= startLoc && UNW_PC(frame) < endLoc) + if (pc >= startLoc && pc < endLoc) break; cie = NULL; } @@ -657,16 +658,28 @@ state.cieEnd = ptr; /* keep here temporarily */ ptr = (const u8 *)(cie + 2); end = (const u8 *)(cie + 1) + *cie; + frame->call_frame = 1; if ((state.version = *ptr) != 1) cie = NULL; /* unsupported version */ else if (*++ptr) { /* check if augmentation size is first (and thus present) */ if (*ptr == 'z') { - /* check for ignorable (or already handled) - * nul-terminated augmentation string */ - while (++ptr < end && *ptr) - if (strchr("LPR", *ptr) == NULL) + while (++ptr < end && *ptr) { + switch(*ptr) { + /* check for ignorable (or already handled) + * nul-terminated augmentation string */ + case 'L': + case 'P': + case 'R': + continue; + case 'S': + frame->call_frame = 0; + continue; + default: break; + } + break; + } } if (ptr >= end || *ptr) cie = NULL; @@ -755,7 +768,7 @@ state.org = startLoc; memcpy(&state.cfa, &badCFA, sizeof(state.cfa)); /* process instructions */ - if (!processCFI(ptr, end, UNW_PC(frame), ptrType, &state) + if (!processCFI(ptr, end, pc, ptrType, &state) || state.loc > endLoc || state.regs[retAddrReg].where == Nowhere || state.cfa.reg >= ARRAY_SIZE(reg_info) @@ -763,6 +776,11 @@ || state.cfa.offs % sizeof(unsigned long)) return -EIO; /* update frame */ +#ifndef CONFIG_AS_CFI_SIGNAL_FRAME + if(frame->call_frame + && !UNW_DEFAULT_RA(state.regs[retAddrReg], state.dataAlign)) + frame->call_frame = 0; +#endif cfa = FRAME_REG(state.cfa.reg, unsigned long) + state.cfa.offs; startLoc = min((unsigned long)UNW_SP(frame), cfa); endLoc = max((unsigned long)UNW_SP(frame), cfa); @@ -866,6 +884,7 @@ /*const*/ struct pt_regs *regs) { info->task = tsk; + info->call_frame = 0; arch_unw_init_frame_info(info, regs); return 0; @@ -879,6 +898,7 @@ struct task_struct *tsk) { info->task = tsk; + info->call_frame = 0; arch_unw_init_blocked(info); return 0; @@ -894,6 +914,7 @@ void *arg) { info->task = current; + info->call_frame = 0; return arch_unwind_init_running(info, callback, arg); }
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 554ee68..b0f5ca7 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug
@@ -8,6 +8,13 @@ operations. This is useful for identifying long delays in kernel startup. +config ENABLE_MUST_CHECK + bool "Enable __must_check logic" + default y + help + Enable the __must_check logic in the kernel build. Disable this to + suppress the "warning: ignoring return value of 'foo', declared with + attribute warn_unused_result" messages. config MAGIC_SYSRQ bool "Magic SysRq key" @@ -218,7 +225,7 @@ bool depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT select STACKTRACE - select FRAME_POINTER + select FRAME_POINTER if !X86 select KALLSYMS select KALLSYMS_ALL @@ -277,7 +284,7 @@ config DEBUG_BUGVERBOSE bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EMBEDDED depends on BUG - depends on ARM || ARM26 || M32R || M68K || SPARC32 || SPARC64 || X86_32 || FRV + depends on ARM || ARM26 || AVR32 || M32R || M68K || SPARC32 || SPARC64 || X86_32 || FRV || SUPERH default !EMBEDDED help Say Y here to make BUG() panics output the file name and line number @@ -315,7 +322,7 @@ config FRAME_POINTER bool "Compile the kernel with frame pointers" - depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390) + depends on DEBUG_KERNEL && (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390 || AVR32 || SUPERH) default y if DEBUG_INFO && UML help If you say Y here the resulting kernel image will be slightly larger
diff --git a/lib/hweight.c b/lib/hweight.c index 4382576..360556a 100644 --- a/lib/hweight.c +++ b/lib/hweight.c
@@ -1,5 +1,6 @@ #include <linux/module.h> #include <asm/types.h> +#include <asm/bitops.h> /** * hweightN - returns the hamming weight of a N-bit word @@ -40,14 +41,19 @@ #if BITS_PER_LONG == 32 return hweight32((unsigned int)(w >> 32)) + hweight32((unsigned int)w); #elif BITS_PER_LONG == 64 +#ifdef ARCH_HAS_FAST_MULTIPLIER + w -= (w >> 1) & 0x5555555555555555ul; + w = (w & 0x3333333333333333ul) + ((w >> 2) & 0x3333333333333333ul); + w = (w + (w >> 4)) & 0x0f0f0f0f0f0f0f0ful; + return (w * 0x0101010101010101ul) >> 56; +#else __u64 res = w - ((w >> 1) & 0x5555555555555555ul); res = (res & 0x3333333333333333ul) + ((res >> 2) & 0x3333333333333333ul); res = (res + (res >> 4)) & 0x0F0F0F0F0F0F0F0Ful; res = res + (res >> 8); res = res + (res >> 16); return (res + (res >> 32)) & 0x00000000000000FFul; -#else -#error BITS_PER_LONG not defined +#endif #endif } EXPORT_SYMBOL(hweight64);
diff --git a/lib/klist.c b/lib/klist.c index 9c94f0b..120bd17 100644 --- a/lib/klist.c +++ b/lib/klist.c
@@ -123,12 +123,10 @@ static void klist_release(struct kref * kref) { struct klist_node * n = container_of(kref, struct klist_node, n_ref); - void (*put)(struct klist_node *) = n->n_klist->put; + list_del(&n->n_node); complete(&n->n_removed); n->n_klist = NULL; - if (put) - put(n); } static int klist_dec_and_del(struct klist_node * n) @@ -145,10 +143,14 @@ void klist_del(struct klist_node * n) { struct klist * k = n->n_klist; + void (*put)(struct klist_node *) = k->put; spin_lock(&k->k_lock); - klist_dec_and_del(n); + if (!klist_dec_and_del(n)) + put = NULL; spin_unlock(&k->k_lock); + if (put) + put(n); } EXPORT_SYMBOL_GPL(klist_del); @@ -161,10 +163,7 @@ void klist_remove(struct klist_node * n) { - struct klist * k = n->n_klist; - spin_lock(&k->k_lock); - klist_dec_and_del(n); - spin_unlock(&k->k_lock); + klist_del(n); wait_for_completion(&n->n_removed); } @@ -260,12 +259,15 @@ struct klist_node * klist_next(struct klist_iter * i) { struct list_head * next; + struct klist_node * lnode = i->i_cur; struct klist_node * knode = NULL; + void (*put)(struct klist_node *) = i->i_klist->put; spin_lock(&i->i_klist->k_lock); - if (i->i_cur) { - next = i->i_cur->n_node.next; - klist_dec_and_del(i->i_cur); + if (lnode) { + next = lnode->n_node.next; + if (!klist_dec_and_del(lnode)) + put = NULL; } else next = i->i_head->next; @@ -275,6 +277,8 @@ } i->i_cur = knode; spin_unlock(&i->i_klist->k_lock); + if (put && lnode) + put(lnode); return knode; }
diff --git a/lib/kobject.c b/lib/kobject.c index 8e7c719..1699eb9 100644 --- a/lib/kobject.c +++ b/lib/kobject.c
@@ -407,6 +407,7 @@ struct kobject *kobject_add_dir(struct kobject *parent, const char *name) { struct kobject *k; + int ret; if (!parent) return NULL; @@ -418,7 +419,13 @@ k->parent = parent; k->ktype = &dir_ktype; kobject_set_name(k, name); - kobject_register(k); + ret = kobject_register(k); + if (ret < 0) { + printk(KERN_WARNING "kobject_add_dir: " + "kobject_register error: %d\n", ret); + kobject_del(k); + return NULL; + } return k; }
diff --git a/mm/Makefile b/mm/Makefile index 9dd824c..60c56c0 100644 --- a/mm/Makefile +++ b/mm/Makefile
@@ -23,4 +23,4 @@ obj-$(CONFIG_MEMORY_HOTPLUG) += memory_hotplug.o obj-$(CONFIG_FS_XIP) += filemap_xip.o obj-$(CONFIG_MIGRATION) += migrate.o - +obj-$(CONFIG_SMP) += allocpercpu.o
diff --git a/mm/allocpercpu.c b/mm/allocpercpu.c new file mode 100644 index 0000000..eaa9abe --- /dev/null +++ b/mm/allocpercpu.c
@@ -0,0 +1,129 @@ +/* + * linux/mm/allocpercpu.c + * + * Separated from slab.c August 11, 2006 Christoph Lameter <clameter@sgi.com> + */ +#include <linux/mm.h> +#include <linux/module.h> + +/** + * percpu_depopulate - depopulate per-cpu data for given cpu + * @__pdata: per-cpu data to depopulate + * @cpu: depopulate per-cpu data for this cpu + * + * Depopulating per-cpu data for a cpu going offline would be a typical + * use case. You need to register a cpu hotplug handler for that purpose. + */ +void percpu_depopulate(void *__pdata, int cpu) +{ + struct percpu_data *pdata = __percpu_disguise(__pdata); + if (pdata->ptrs[cpu]) { + kfree(pdata->ptrs[cpu]); + pdata->ptrs[cpu] = NULL; + } +} +EXPORT_SYMBOL_GPL(percpu_depopulate); + +/** + * percpu_depopulate_mask - depopulate per-cpu data for some cpu's + * @__pdata: per-cpu data to depopulate + * @mask: depopulate per-cpu data for cpu's selected through mask bits + */ +void __percpu_depopulate_mask(void *__pdata, cpumask_t *mask) +{ + int cpu; + for_each_cpu_mask(cpu, *mask) + percpu_depopulate(__pdata, cpu); +} +EXPORT_SYMBOL_GPL(__percpu_depopulate_mask); + +/** + * percpu_populate - populate per-cpu data for given cpu + * @__pdata: per-cpu data to populate further + * @size: size of per-cpu object + * @gfp: may sleep or not etc. + * @cpu: populate per-data for this cpu + * + * Populating per-cpu data for a cpu coming online would be a typical + * use case. You need to register a cpu hotplug handler for that purpose. + * Per-cpu object is populated with zeroed buffer. + */ +void *percpu_populate(void *__pdata, size_t size, gfp_t gfp, int cpu) +{ + struct percpu_data *pdata = __percpu_disguise(__pdata); + int node = cpu_to_node(cpu); + + BUG_ON(pdata->ptrs[cpu]); + if (node_online(node)) { + /* FIXME: kzalloc_node(size, gfp, node) */ + pdata->ptrs[cpu] = kmalloc_node(size, gfp, node); + if (pdata->ptrs[cpu]) + memset(pdata->ptrs[cpu], 0, size); + } else + pdata->ptrs[cpu] = kzalloc(size, gfp); + return pdata->ptrs[cpu]; +} +EXPORT_SYMBOL_GPL(percpu_populate); + +/** + * percpu_populate_mask - populate per-cpu data for more cpu's + * @__pdata: per-cpu data to populate further + * @size: size of per-cpu object + * @gfp: may sleep or not etc. + * @mask: populate per-cpu data for cpu's selected through mask bits + * + * Per-cpu objects are populated with zeroed buffers. + */ +int __percpu_populate_mask(void *__pdata, size_t size, gfp_t gfp, + cpumask_t *mask) +{ + cpumask_t populated = CPU_MASK_NONE; + int cpu; + + for_each_cpu_mask(cpu, *mask) + if (unlikely(!percpu_populate(__pdata, size, gfp, cpu))) { + __percpu_depopulate_mask(__pdata, &populated); + return -ENOMEM; + } else + cpu_set(cpu, populated); + return 0; +} +EXPORT_SYMBOL_GPL(__percpu_populate_mask); + +/** + * percpu_alloc_mask - initial setup of per-cpu data + * @size: size of per-cpu object + * @gfp: may sleep or not etc. + * @mask: populate per-data for cpu's selected through mask bits + * + * Populating per-cpu data for all online cpu's would be a typical use case, + * which is simplified by the percpu_alloc() wrapper. + * Per-cpu objects are populated with zeroed buffers. + */ +void *__percpu_alloc_mask(size_t size, gfp_t gfp, cpumask_t *mask) +{ + void *pdata = kzalloc(sizeof(struct percpu_data), gfp); + void *__pdata = __percpu_disguise(pdata); + + if (unlikely(!pdata)) + return NULL; + if (likely(!__percpu_populate_mask(__pdata, size, gfp, mask))) + return __pdata; + kfree(pdata); + return NULL; +} +EXPORT_SYMBOL_GPL(__percpu_alloc_mask); + +/** + * percpu_free - final cleanup of per-cpu data + * @__pdata: object to clean up + * + * We simply clean up any per-cpu object left. No need for the client to + * track and specify through a bis mask which per-cpu objects are to free. + */ +void percpu_free(void *__pdata) +{ + __percpu_depopulate_mask(__pdata, &cpu_possible_map); + kfree(__percpu_disguise(__pdata)); +} +EXPORT_SYMBOL_GPL(percpu_free);
diff --git a/mm/bootmem.c b/mm/bootmem.c index 50353e0..d53112fc 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c
@@ -8,17 +8,15 @@ * free memory collector. It's used to deal with reserved * system memory and memory holes as well. */ - -#include <linux/mm.h> -#include <linux/kernel_stat.h> -#include <linux/swap.h> -#include <linux/interrupt.h> #include <linux/init.h> +#include <linux/pfn.h> #include <linux/bootmem.h> -#include <linux/mmzone.h> #include <linux/module.h> -#include <asm/dma.h> + +#include <asm/bug.h> #include <asm/io.h> +#include <asm/processor.h> + #include "internal.h" /* @@ -41,7 +39,7 @@ #endif /* return the number of _pages_ that will be allocated for the boot bitmap */ -unsigned long __init bootmem_bootmap_pages (unsigned long pages) +unsigned long __init bootmem_bootmap_pages(unsigned long pages) { unsigned long mapsize; @@ -51,12 +49,14 @@ return mapsize; } + /* * link bdata in order */ -static void link_bootmem(bootmem_data_t *bdata) +static void __init link_bootmem(bootmem_data_t *bdata) { bootmem_data_t *ent; + if (list_empty(&bdata_list)) { list_add(&bdata->list, &bdata_list); return; @@ -69,22 +69,32 @@ } } list_add_tail(&bdata->list, &bdata_list); - return; } +/* + * Given an initialised bdata, it returns the size of the boot bitmap + */ +static unsigned long __init get_mapsize(bootmem_data_t *bdata) +{ + unsigned long mapsize; + unsigned long start = PFN_DOWN(bdata->node_boot_start); + unsigned long end = bdata->node_low_pfn; + + mapsize = ((end - start) + 7) / 8; + return ALIGN(mapsize, sizeof(long)); +} /* * Called once to set up the allocator itself. */ -static unsigned long __init init_bootmem_core (pg_data_t *pgdat, +static unsigned long __init init_bootmem_core(pg_data_t *pgdat, unsigned long mapstart, unsigned long start, unsigned long end) { bootmem_data_t *bdata = pgdat->bdata; - unsigned long mapsize = ((end - start)+7)/8; + unsigned long mapsize; - mapsize = ALIGN(mapsize, sizeof(long)); - bdata->node_bootmem_map = phys_to_virt(mapstart << PAGE_SHIFT); - bdata->node_boot_start = (start << PAGE_SHIFT); + bdata->node_bootmem_map = phys_to_virt(PFN_PHYS(mapstart)); + bdata->node_boot_start = PFN_PHYS(start); bdata->node_low_pfn = end; link_bootmem(bdata); @@ -92,6 +102,7 @@ * Initially all pages are reserved - setup_arch() has to * register free RAM areas explicitly. */ + mapsize = get_mapsize(bdata); memset(bdata->node_bootmem_map, 0xff, mapsize); return mapsize; @@ -102,22 +113,22 @@ * might be used for boot-time allocations - or it might get added * to the free page pool later on. */ -static void __init reserve_bootmem_core(bootmem_data_t *bdata, unsigned long addr, unsigned long size) +static void __init reserve_bootmem_core(bootmem_data_t *bdata, unsigned long addr, + unsigned long size) { + unsigned long sidx, eidx; unsigned long i; + /* * round up, partially reserved pages are considered * fully reserved. */ - unsigned long sidx = (addr - bdata->node_boot_start)/PAGE_SIZE; - unsigned long eidx = (addr + size - bdata->node_boot_start + - PAGE_SIZE-1)/PAGE_SIZE; - unsigned long end = (addr + size + PAGE_SIZE-1)/PAGE_SIZE; - BUG_ON(!size); - BUG_ON(sidx >= eidx); - BUG_ON((addr >> PAGE_SHIFT) >= bdata->node_low_pfn); - BUG_ON(end > bdata->node_low_pfn); + BUG_ON(PFN_DOWN(addr) >= bdata->node_low_pfn); + BUG_ON(PFN_UP(addr + size) > bdata->node_low_pfn); + + sidx = PFN_DOWN(addr - bdata->node_boot_start); + eidx = PFN_UP(addr + size - bdata->node_boot_start); for (i = sidx; i < eidx; i++) if (test_and_set_bit(i, bdata->node_bootmem_map)) { @@ -127,20 +138,18 @@ } } -static void __init free_bootmem_core(bootmem_data_t *bdata, unsigned long addr, unsigned long size) +static void __init free_bootmem_core(bootmem_data_t *bdata, unsigned long addr, + unsigned long size) { + unsigned long sidx, eidx; unsigned long i; - unsigned long start; + /* * round down end of usable mem, partially free pages are * considered reserved. */ - unsigned long sidx; - unsigned long eidx = (addr + size - bdata->node_boot_start)/PAGE_SIZE; - unsigned long end = (addr + size)/PAGE_SIZE; - BUG_ON(!size); - BUG_ON(end > bdata->node_low_pfn); + BUG_ON(PFN_DOWN(addr + size) > bdata->node_low_pfn); if (addr < bdata->last_success) bdata->last_success = addr; @@ -148,8 +157,8 @@ /* * Round up the beginning of the address. */ - start = (addr + PAGE_SIZE-1) / PAGE_SIZE; - sidx = start - (bdata->node_boot_start/PAGE_SIZE); + sidx = PFN_UP(addr) - PFN_DOWN(bdata->node_boot_start); + eidx = PFN_DOWN(addr + size - bdata->node_boot_start); for (i = sidx; i < eidx; i++) { if (unlikely(!test_and_clear_bit(i, bdata->node_bootmem_map))) @@ -175,10 +184,10 @@ unsigned long align, unsigned long goal, unsigned long limit) { unsigned long offset, remaining_size, areasize, preferred; - unsigned long i, start = 0, incr, eidx, end_pfn = bdata->node_low_pfn; + unsigned long i, start = 0, incr, eidx, end_pfn; void *ret; - if(!size) { + if (!size) { printk("__alloc_bootmem_core(): zero-sized request\n"); BUG(); } @@ -187,23 +196,22 @@ if (limit && bdata->node_boot_start >= limit) return NULL; - limit >>=PAGE_SHIFT; + end_pfn = bdata->node_low_pfn; + limit = PFN_DOWN(limit); if (limit && end_pfn > limit) end_pfn = limit; - eidx = end_pfn - (bdata->node_boot_start >> PAGE_SHIFT); + eidx = end_pfn - PFN_DOWN(bdata->node_boot_start); offset = 0; - if (align && - (bdata->node_boot_start & (align - 1UL)) != 0) - offset = (align - (bdata->node_boot_start & (align - 1UL))); - offset >>= PAGE_SHIFT; + if (align && (bdata->node_boot_start & (align - 1UL)) != 0) + offset = align - (bdata->node_boot_start & (align - 1UL)); + offset = PFN_DOWN(offset); /* * We try to allocate bootmem pages above 'goal' * first, then we try to allocate lower pages. */ - if (goal && (goal >= bdata->node_boot_start) && - ((goal >> PAGE_SHIFT) < end_pfn)) { + if (goal && goal >= bdata->node_boot_start && PFN_DOWN(goal) < end_pfn) { preferred = goal - bdata->node_boot_start; if (bdata->last_success >= preferred) @@ -212,9 +220,8 @@ } else preferred = 0; - preferred = ALIGN(preferred, align) >> PAGE_SHIFT; - preferred += offset; - areasize = (size+PAGE_SIZE-1)/PAGE_SIZE; + preferred = PFN_DOWN(ALIGN(preferred, align)) + offset; + areasize = (size + PAGE_SIZE-1) / PAGE_SIZE; incr = align >> PAGE_SHIFT ? : 1; restart_scan: @@ -229,7 +236,7 @@ for (j = i + 1; j < i + areasize; ++j) { if (j >= eidx) goto fail_block; - if (test_bit (j, bdata->node_bootmem_map)) + if (test_bit(j, bdata->node_bootmem_map)) goto fail_block; } start = i; @@ -245,7 +252,7 @@ return NULL; found: - bdata->last_success = start << PAGE_SHIFT; + bdata->last_success = PFN_PHYS(start); BUG_ON(start >= eidx); /* @@ -257,19 +264,21 @@ bdata->last_offset && bdata->last_pos+1 == start) { offset = ALIGN(bdata->last_offset, align); BUG_ON(offset > PAGE_SIZE); - remaining_size = PAGE_SIZE-offset; + remaining_size = PAGE_SIZE - offset; if (size < remaining_size) { areasize = 0; /* last_pos unchanged */ - bdata->last_offset = offset+size; - ret = phys_to_virt(bdata->last_pos*PAGE_SIZE + offset + - bdata->node_boot_start); + bdata->last_offset = offset + size; + ret = phys_to_virt(bdata->last_pos * PAGE_SIZE + + offset + + bdata->node_boot_start); } else { remaining_size = size - remaining_size; - areasize = (remaining_size+PAGE_SIZE-1)/PAGE_SIZE; - ret = phys_to_virt(bdata->last_pos*PAGE_SIZE + offset + - bdata->node_boot_start); - bdata->last_pos = start+areasize-1; + areasize = (remaining_size + PAGE_SIZE-1) / PAGE_SIZE; + ret = phys_to_virt(bdata->last_pos * PAGE_SIZE + + offset + + bdata->node_boot_start); + bdata->last_pos = start + areasize - 1; bdata->last_offset = remaining_size; } bdata->last_offset &= ~PAGE_MASK; @@ -282,7 +291,7 @@ /* * Reserve the area now: */ - for (i = start; i < start+areasize; i++) + for (i = start; i < start + areasize; i++) if (unlikely(test_and_set_bit(i, bdata->node_bootmem_map))) BUG(); memset(ret, 0, size); @@ -303,8 +312,8 @@ count = 0; /* first extant page of the node */ - pfn = bdata->node_boot_start >> PAGE_SHIFT; - idx = bdata->node_low_pfn - (bdata->node_boot_start >> PAGE_SHIFT); + pfn = PFN_DOWN(bdata->node_boot_start); + idx = bdata->node_low_pfn - pfn; map = bdata->node_bootmem_map; /* Check physaddr is O(LOG2(BITS_PER_LONG)) page aligned */ if (bdata->node_boot_start == 0 || @@ -333,7 +342,7 @@ } } } else { - i+=BITS_PER_LONG; + i += BITS_PER_LONG; } pfn += BITS_PER_LONG; } @@ -345,9 +354,10 @@ */ page = virt_to_page(bdata->node_bootmem_map); count = 0; - for (i = 0; i < ((bdata->node_low_pfn-(bdata->node_boot_start >> PAGE_SHIFT))/8 + PAGE_SIZE-1)/PAGE_SIZE; i++,page++) { - count++; + idx = (get_mapsize(bdata) + PAGE_SIZE-1) >> PAGE_SHIFT; + for (i = 0; i < idx; i++, page++) { __free_pages_bootmem(page, 0); + count++; } total += count; bdata->node_bootmem_map = NULL; @@ -355,64 +365,72 @@ return total; } -unsigned long __init init_bootmem_node (pg_data_t *pgdat, unsigned long freepfn, unsigned long startpfn, unsigned long endpfn) +unsigned long __init init_bootmem_node(pg_data_t *pgdat, unsigned long freepfn, + unsigned long startpfn, unsigned long endpfn) { - return(init_bootmem_core(pgdat, freepfn, startpfn, endpfn)); + return init_bootmem_core(pgdat, freepfn, startpfn, endpfn); } -void __init reserve_bootmem_node (pg_data_t *pgdat, unsigned long physaddr, unsigned long size) +void __init reserve_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, + unsigned long size) { reserve_bootmem_core(pgdat->bdata, physaddr, size); } -void __init free_bootmem_node (pg_data_t *pgdat, unsigned long physaddr, unsigned long size) +void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, + unsigned long size) { free_bootmem_core(pgdat->bdata, physaddr, size); } -unsigned long __init free_all_bootmem_node (pg_data_t *pgdat) +unsigned long __init free_all_bootmem_node(pg_data_t *pgdat) { - return(free_all_bootmem_core(pgdat)); + return free_all_bootmem_core(pgdat); } -unsigned long __init init_bootmem (unsigned long start, unsigned long pages) +unsigned long __init init_bootmem(unsigned long start, unsigned long pages) { max_low_pfn = pages; min_low_pfn = start; - return(init_bootmem_core(NODE_DATA(0), start, 0, pages)); + return init_bootmem_core(NODE_DATA(0), start, 0, pages); } #ifndef CONFIG_HAVE_ARCH_BOOTMEM_NODE -void __init reserve_bootmem (unsigned long addr, unsigned long size) +void __init reserve_bootmem(unsigned long addr, unsigned long size) { reserve_bootmem_core(NODE_DATA(0)->bdata, addr, size); } #endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */ -void __init free_bootmem (unsigned long addr, unsigned long size) +void __init free_bootmem(unsigned long addr, unsigned long size) { free_bootmem_core(NODE_DATA(0)->bdata, addr, size); } -unsigned long __init free_all_bootmem (void) +unsigned long __init free_all_bootmem(void) { - return(free_all_bootmem_core(NODE_DATA(0))); + return free_all_bootmem_core(NODE_DATA(0)); } -void * __init __alloc_bootmem_nopanic(unsigned long size, unsigned long align, unsigned long goal) +void * __init __alloc_bootmem_nopanic(unsigned long size, unsigned long align, + unsigned long goal) { bootmem_data_t *bdata; void *ptr; - list_for_each_entry(bdata, &bdata_list, list) - if ((ptr = __alloc_bootmem_core(bdata, size, align, goal, 0))) - return(ptr); + list_for_each_entry(bdata, &bdata_list, list) { + ptr = __alloc_bootmem_core(bdata, size, align, goal, 0); + if (ptr) + return ptr; + } return NULL; } -void * __init __alloc_bootmem(unsigned long size, unsigned long align, unsigned long goal) +void * __init __alloc_bootmem(unsigned long size, unsigned long align, + unsigned long goal) { void *mem = __alloc_bootmem_nopanic(size,align,goal); + if (mem) return mem; /* @@ -424,29 +442,34 @@ } -void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, unsigned long align, - unsigned long goal) +void * __init __alloc_bootmem_node(pg_data_t *pgdat, unsigned long size, + unsigned long align, unsigned long goal) { void *ptr; ptr = __alloc_bootmem_core(pgdat->bdata, size, align, goal, 0); if (ptr) - return (ptr); + return ptr; return __alloc_bootmem(size, align, goal); } -#define LOW32LIMIT 0xffffffff +#ifndef ARCH_LOW_ADDRESS_LIMIT +#define ARCH_LOW_ADDRESS_LIMIT 0xffffffffUL +#endif -void * __init __alloc_bootmem_low(unsigned long size, unsigned long align, unsigned long goal) +void * __init __alloc_bootmem_low(unsigned long size, unsigned long align, + unsigned long goal) { bootmem_data_t *bdata; void *ptr; - list_for_each_entry(bdata, &bdata_list, list) - if ((ptr = __alloc_bootmem_core(bdata, size, - align, goal, LOW32LIMIT))) - return(ptr); + list_for_each_entry(bdata, &bdata_list, list) { + ptr = __alloc_bootmem_core(bdata, size, align, goal, + ARCH_LOW_ADDRESS_LIMIT); + if (ptr) + return ptr; + } /* * Whoops, we cannot satisfy the allocation request. @@ -459,5 +482,6 @@ void * __init __alloc_bootmem_low_node(pg_data_t *pgdat, unsigned long size, unsigned long align, unsigned long goal) { - return __alloc_bootmem_core(pgdat->bdata, size, align, goal, LOW32LIMIT); + return __alloc_bootmem_core(pgdat->bdata, size, align, goal, + ARCH_LOW_ADDRESS_LIMIT); }
diff --git a/mm/filemap.c b/mm/filemap.c index 3195806..87d4a39 100644 --- a/mm/filemap.c +++ b/mm/filemap.c
@@ -488,6 +488,12 @@ EXPORT_SYMBOL(page_cache_alloc_cold); #endif +static int __sleep_on_page_lock(void *word) +{ + io_schedule(); + return 0; +} + /* * In order to wait for pages to become available there must be * waitqueues associated with pages. By using a hash table of @@ -577,13 +583,24 @@ } EXPORT_SYMBOL(__lock_page); +/* + * Variant of lock_page that does not require the caller to hold a reference + * on the page's mapping. + */ +void fastcall __lock_page_nosync(struct page *page) +{ + DEFINE_WAIT_BIT(wait, &page->flags, PG_locked); + __wait_on_bit_lock(page_waitqueue(page), &wait, __sleep_on_page_lock, + TASK_UNINTERRUPTIBLE); +} + /** * find_get_page - find and get a page reference * @mapping: the address_space to search * @offset: the page index * - * A rather lightweight function, finding and getting a reference to a - * hashed page atomically. + * Is there a pagecache struct page at the given (mapping, offset) tuple? + * If yes, increment its refcount and return it; if no, return NULL. */ struct page * find_get_page(struct address_space *mapping, unsigned long offset) { @@ -970,7 +987,7 @@ /* Get exclusive access to the page ... */ lock_page(page); - /* Did it get unhashed before we got the lock? */ + /* Did it get truncated before we got the lock? */ if (!page->mapping) { unlock_page(page); page_cache_release(page); @@ -1612,7 +1629,7 @@ page_not_uptodate: lock_page(page); - /* Did it get unhashed while we waited for it? */ + /* Did it get truncated while we waited for it? */ if (!page->mapping) { unlock_page(page); goto err;
diff --git a/mm/fremap.c b/mm/fremap.c index 21b7d0c..aa30618 100644 --- a/mm/fremap.c +++ b/mm/fremap.c
@@ -79,9 +79,9 @@ inc_mm_counter(mm, file_rss); flush_icache_page(vma, page); - set_pte_at(mm, addr, pte, mk_pte(page, prot)); + pte_val = mk_pte(page, prot); + set_pte_at(mm, addr, pte, pte_val); page_add_file_rmap(page); - pte_val = *pte; update_mmu_cache(vma, addr, pte_val); lazy_mmu_prot_update(pte_val); err = 0;
diff --git a/mm/highmem.c b/mm/highmem.c index 9b2a540..ee5519b 100644 --- a/mm/highmem.c +++ b/mm/highmem.c
@@ -46,6 +46,19 @@ */ #ifdef CONFIG_HIGHMEM +unsigned long totalhigh_pages __read_mostly; + +unsigned int nr_free_highpages (void) +{ + pg_data_t *pgdat; + unsigned int pages = 0; + + for_each_online_pgdat(pgdat) + pages += pgdat->node_zones[ZONE_HIGHMEM].free_pages; + + return pages; +} + static int pkmap_count[LAST_PKMAP]; static unsigned int last_pkmap_nr; static __cacheline_aligned_in_smp DEFINE_SPINLOCK(kmap_lock);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index df49997..7c7d03d 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c
@@ -72,7 +72,7 @@ struct zone **z; for (z = zonelist->zones; *z; z++) { - nid = (*z)->zone_pgdat->node_id; + nid = zone_to_nid(*z); if (cpuset_zone_allowed(*z, GFP_HIGHUSER) && !list_empty(&hugepage_freelists[nid])) break; @@ -177,7 +177,7 @@ { int i; nr_huge_pages--; - nr_huge_pages_node[page_zone(page)->zone_pgdat->node_id]--; + nr_huge_pages_node[page_to_nid(page)]--; for (i = 0; i < (HPAGE_SIZE / PAGE_SIZE); i++) { page[i].flags &= ~(1 << PG_locked | 1 << PG_error | 1 << PG_referenced | 1 << PG_dirty | 1 << PG_active | 1 << PG_reserved | @@ -191,7 +191,8 @@ #ifdef CONFIG_HIGHMEM static void try_to_free_low(unsigned long count) { - int i, nid; + int i; + for (i = 0; i < MAX_NUMNODES; ++i) { struct page *page, *next; list_for_each_entry_safe(page, next, &hugepage_freelists[i], lru) { @@ -199,9 +200,8 @@ continue; list_del(&page->lru); update_and_free_page(page); - nid = page_zone(page)->zone_pgdat->node_id; free_huge_pages--; - free_huge_pages_node[nid]--; + free_huge_pages_node[page_to_nid(page)]--; if (count >= nr_huge_pages) return; }
diff --git a/mm/internal.h b/mm/internal.h index d20e3cc..d527b80 100644 --- a/mm/internal.h +++ b/mm/internal.h
@@ -24,8 +24,8 @@ */ static inline void set_page_refcounted(struct page *page) { - BUG_ON(PageCompound(page) && page_private(page) != (unsigned long)page); - BUG_ON(atomic_read(&page->_count)); + VM_BUG_ON(PageCompound(page) && page_private(page) != (unsigned long)page); + VM_BUG_ON(atomic_read(&page->_count)); set_page_count(page, 1); }
diff --git a/mm/memory.c b/mm/memory.c index 109e986..601159a 100644 --- a/mm/memory.c +++ b/mm/memory.c
@@ -49,6 +49,7 @@ #include <linux/module.h> #include <linux/delayacct.h> #include <linux/init.h> +#include <linux/writeback.h> #include <asm/pgalloc.h> #include <asm/uaccess.h> @@ -1226,7 +1227,12 @@ return retval; } -/* +/** + * vm_insert_page - insert single page into user vma + * @vma: user vma to map to + * @addr: target user address of this page + * @page: source kernel page + * * This allows drivers to insert individual pages they've allocated * into a user vma. * @@ -1318,7 +1324,16 @@ return 0; } -/* Note: this is only safe if the mm semaphore is held when called. */ +/** + * remap_pfn_range - remap kernel memory to userspace + * @vma: user vma to map to + * @addr: target user address to start at + * @pfn: physical address of kernel memory + * @size: size of map area + * @prot: page protection flags for this mapping + * + * Note: this is only safe if the mm semaphore is held when called. + */ int remap_pfn_range(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn, unsigned long size, pgprot_t prot) { @@ -1458,14 +1473,29 @@ { struct page *old_page, *new_page; pte_t entry; - int reuse, ret = VM_FAULT_MINOR; + int reuse = 0, ret = VM_FAULT_MINOR; + struct page *dirty_page = NULL; old_page = vm_normal_page(vma, address, orig_pte); if (!old_page) goto gotten; - if (unlikely((vma->vm_flags & (VM_SHARED|VM_WRITE)) == - (VM_SHARED|VM_WRITE))) { + /* + * Take out anonymous pages first, anonymous shared vmas are + * not dirty accountable. + */ + if (PageAnon(old_page)) { + if (!TestSetPageLocked(old_page)) { + reuse = can_share_swap_page(old_page); + unlock_page(old_page); + } + } else if (unlikely((vma->vm_flags & (VM_WRITE|VM_SHARED)) == + (VM_WRITE|VM_SHARED))) { + /* + * Only catch write-faults on shared writable pages, + * read-only shared pages can get COWed by + * get_user_pages(.write=1, .force=1). + */ if (vma->vm_ops && vma->vm_ops->page_mkwrite) { /* * Notify the address space that the page is about to @@ -1494,13 +1524,9 @@ if (!pte_same(*page_table, orig_pte)) goto unlock; } - + dirty_page = old_page; + get_page(dirty_page); reuse = 1; - } else if (PageAnon(old_page) && !TestSetPageLocked(old_page)) { - reuse = can_share_swap_page(old_page); - unlock_page(old_page); - } else { - reuse = 0; } if (reuse) { @@ -1566,6 +1592,10 @@ page_cache_release(old_page); unlock: pte_unmap_unlock(page_table, ptl); + if (dirty_page) { + set_page_dirty_balance(dirty_page); + put_page(dirty_page); + } return ret; oom: if (old_page) @@ -1785,9 +1815,10 @@ } EXPORT_SYMBOL(unmap_mapping_range); -/* - * Handle all mappings that got truncated by a "truncate()" - * system call. +/** + * vmtruncate - unmap mappings "freed" by truncate() syscall + * @inode: inode of the file used + * @offset: file offset to start truncating * * NOTE! We have to be ready to update the memory sharing * between the file and the memory map for a potential last @@ -1856,11 +1887,16 @@ } EXPORT_UNUSED_SYMBOL(vmtruncate_range); /* June 2006 */ -/* +/** + * swapin_readahead - swap in pages in hope we need them soon + * @entry: swap entry of this memory + * @addr: address to start + * @vma: user vma this addresses belong to + * * Primitive swap readahead code. We simply read an aligned block of * (1 << page_cluster) entries in the swap area. This method is chosen * because it doesn't cost us any seek time. We also make sure to queue - * the 'original' request together with the readahead ones... + * the 'original' request together with the readahead ones... * * This has been extended to use the NUMA policies from the mm triggering * the readahead. @@ -2098,6 +2134,7 @@ unsigned int sequence = 0; int ret = VM_FAULT_MINOR; int anon = 0; + struct page *dirty_page = NULL; pte_unmap(page_table); BUG_ON(vma->vm_flags & VM_PFNMAP); @@ -2192,6 +2229,10 @@ } else { inc_mm_counter(mm, file_rss); page_add_file_rmap(new_page); + if (write_access) { + dirty_page = new_page; + get_page(dirty_page); + } } } else { /* One of our sibling threads was faster, back out. */ @@ -2204,6 +2245,10 @@ lazy_mmu_prot_update(entry); unlock: pte_unmap_unlock(page_table, ptl); + if (dirty_page) { + set_page_dirty_balance(dirty_page); + put_page(dirty_page); + } return ret; oom: page_cache_release(new_page); @@ -2211,6 +2256,54 @@ } /* + * do_no_pfn() tries to create a new page mapping for a page without + * a struct_page backing it + * + * As this is called only for pages that do not currently exist, we + * do not need to flush old virtual caches or the TLB. + * + * We enter with non-exclusive mmap_sem (to exclude vma changes, + * but allow concurrent faults), and pte mapped but not yet locked. + * We return with mmap_sem still held, but pte unmapped and unlocked. + * + * It is expected that the ->nopfn handler always returns the same pfn + * for a given virtual mapping. + * + * Mark this `noinline' to prevent it from bloating the main pagefault code. + */ +static noinline int do_no_pfn(struct mm_struct *mm, struct vm_area_struct *vma, + unsigned long address, pte_t *page_table, pmd_t *pmd, + int write_access) +{ + spinlock_t *ptl; + pte_t entry; + unsigned long pfn; + int ret = VM_FAULT_MINOR; + + pte_unmap(page_table); + BUG_ON(!(vma->vm_flags & VM_PFNMAP)); + BUG_ON(is_cow_mapping(vma->vm_flags)); + + pfn = vma->vm_ops->nopfn(vma, address & PAGE_MASK); + if (pfn == NOPFN_OOM) + return VM_FAULT_OOM; + if (pfn == NOPFN_SIGBUS) + return VM_FAULT_SIGBUS; + + page_table = pte_offset_map_lock(mm, pmd, address, &ptl); + + /* Only go through if we didn't race with anybody else... */ + if (pte_none(*page_table)) { + entry = pfn_pte(pfn, vma->vm_page_prot); + if (write_access) + entry = maybe_mkwrite(pte_mkdirty(entry), vma); + set_pte_at(mm, address, page_table, entry); + } + pte_unmap_unlock(page_table, ptl); + return ret; +} + +/* * Fault of a previously existing named mapping. Repopulate the pte * from the encoded file_pte if possible. This enables swappable * nonlinear vmas. @@ -2272,11 +2365,17 @@ old_entry = entry = *pte; if (!pte_present(entry)) { if (pte_none(entry)) { - if (!vma->vm_ops || !vma->vm_ops->nopage) - return do_anonymous_page(mm, vma, address, - pte, pmd, write_access); - return do_no_page(mm, vma, address, - pte, pmd, write_access); + if (vma->vm_ops) { + if (vma->vm_ops->nopage) + return do_no_page(mm, vma, address, + pte, pmd, + write_access); + if (unlikely(vma->vm_ops->nopfn)) + return do_no_pfn(mm, vma, address, pte, + pmd, write_access); + } + return do_anonymous_page(mm, vma, address, + pte, pmd, write_access); } if (pte_file(entry)) return do_file_page(mm, vma, address, @@ -2505,3 +2604,56 @@ } #endif /* __HAVE_ARCH_GATE_AREA */ + +/* + * Access another process' address space. + * Source/target buffer must be kernel space, + * Do not walk the page table directly, use get_user_pages + */ +int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write) +{ + struct mm_struct *mm; + struct vm_area_struct *vma; + struct page *page; + void *old_buf = buf; + + mm = get_task_mm(tsk); + if (!mm) + return 0; + + down_read(&mm->mmap_sem); + /* ignore errors, just check how much was sucessfully transfered */ + while (len) { + int bytes, ret, offset; + void *maddr; + + ret = get_user_pages(tsk, mm, addr, 1, + write, 1, &page, &vma); + if (ret <= 0) + break; + + bytes = len; + offset = addr & (PAGE_SIZE-1); + if (bytes > PAGE_SIZE-offset) + bytes = PAGE_SIZE-offset; + + maddr = kmap(page); + if (write) { + copy_to_user_page(vma, page, addr, + maddr + offset, buf, bytes); + set_page_dirty_lock(page); + } else { + copy_from_user_page(vma, page, addr, + buf, maddr + offset, bytes); + } + kunmap(page); + page_cache_release(page); + len -= bytes; + buf += bytes; + addr += bytes; + } + up_read(&mm->mmap_sem); + mmput(mm); + + return buf - old_buf; +}
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index a9963ce..cf18f09 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c
@@ -105,7 +105,7 @@ /* Highest zone. An specific allocation for a zone below that is not policied. */ -int policy_zone = ZONE_DMA; +enum zone_type policy_zone = ZONE_DMA; struct mempolicy default_policy = { .refcnt = ATOMIC_INIT(1), /* never free it */ @@ -137,7 +137,8 @@ static struct zonelist *bind_zonelist(nodemask_t *nodes) { struct zonelist *zl; - int num, max, nd, k; + int num, max, nd; + enum zone_type k; max = 1 + MAX_NR_ZONES * nodes_weight(*nodes); zl = kmalloc(sizeof(struct zone *) * max, GFP_KERNEL); @@ -148,12 +149,16 @@ lower zones etc. Avoid empty zones because the memory allocator doesn't like them. If you implement node hot removal you have to fix that. */ - for (k = policy_zone; k >= 0; k--) { + k = policy_zone; + while (1) { for_each_node_mask(nd, *nodes) { struct zone *z = &NODE_DATA(nd)->node_zones[k]; if (z->present_pages > 0) zl->zones[num++] = z; } + if (k == 0) + break; + k--; } zl->zones[num] = NULL; return zl; @@ -482,7 +487,7 @@ switch (p->policy) { case MPOL_BIND: for (i = 0; p->v.zonelist->zones[i]; i++) - node_set(p->v.zonelist->zones[i]->zone_pgdat->node_id, + node_set(zone_to_nid(p->v.zonelist->zones[i]), *nodes); break; case MPOL_DEFAULT: @@ -1131,7 +1136,9 @@ */ unsigned slab_node(struct mempolicy *policy) { - switch (policy->policy) { + int pol = policy ? policy->policy : MPOL_DEFAULT; + + switch (pol) { case MPOL_INTERLEAVE: return interleave_nodes(policy); @@ -1140,7 +1147,7 @@ * Follow bind policy behavior and start allocation at the * first node. */ - return policy->v.zonelist->zones[0]->zone_pgdat->node_id; + return zone_to_nid(policy->v.zonelist->zones[0]); case MPOL_PREFERRED: if (policy->v.preferred_node >= 0) @@ -1285,7 +1292,7 @@ if ((gfp & __GFP_WAIT) && !in_interrupt()) cpuset_update_task_memory_state(); - if (!pol || in_interrupt()) + if (!pol || in_interrupt() || (gfp & __GFP_THISNODE)) pol = &default_policy; if (pol->policy == MPOL_INTERLEAVE) return alloc_page_interleave(gfp, order, interleave_nodes(pol)); @@ -1644,7 +1651,7 @@ nodes_clear(nodes); for (z = pol->v.zonelist->zones; *z; z++) - node_set((*z)->zone_pgdat->node_id, nodes); + node_set(zone_to_nid(*z), nodes); nodes_remap(tmp, nodes, *mpolmask, *newmask); nodes = tmp;
diff --git a/mm/migrate.c b/mm/migrate.c index 3f1e0c2..20a8c26 100644 --- a/mm/migrate.c +++ b/mm/migrate.c
@@ -741,7 +741,7 @@ *result = &pm->status; - return alloc_pages_node(pm->node, GFP_HIGHUSER, 0); + return alloc_pages_node(pm->node, GFP_HIGHUSER | GFP_THISNODE, 0); } /*
diff --git a/mm/mmap.c b/mm/mmap.c index d799d89..eea8eef 100644 --- a/mm/mmap.c +++ b/mm/mmap.c
@@ -116,7 +116,7 @@ * which are reclaimable, under pressure. The dentry * cache and most inode caches should fall into this */ - free += atomic_read(&slab_reclaim_pages); + free += global_page_state(NR_SLAB_RECLAIMABLE); /* * Leave the last 3% for root @@ -1105,12 +1105,6 @@ goto free_vma; } - /* Don't make the VMA automatically writable if it's shared, but the - * backer wishes to know when pages are first written to */ - if (vma->vm_ops && vma->vm_ops->page_mkwrite) - vma->vm_page_prot = - protection_map[vm_flags & (VM_READ|VM_WRITE|VM_EXEC)]; - /* We set VM_ACCOUNT in a shared mapping's vm_flags, to inform * shmem_zero_setup (perhaps called through /dev/zero's ->mmap) * that memory reservation must be checked; but that reservation @@ -1128,6 +1122,10 @@ pgoff = vma->vm_pgoff; vm_flags = vma->vm_flags; + if (vma_wants_writenotify(vma)) + vma->vm_page_prot = + protection_map[vm_flags & (VM_READ|VM_WRITE|VM_EXEC)]; + if (!file || !vma_merge(mm, prev, addr, vma->vm_end, vma->vm_flags, NULL, file, pgoff, vma_policy(vma))) { file = vma->vm_file;
diff --git a/mm/mprotect.c b/mm/mprotect.c index 638edab..955f9d0 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c
@@ -27,7 +27,8 @@ #include <asm/tlbflush.h> static void change_pte_range(struct mm_struct *mm, pmd_t *pmd, - unsigned long addr, unsigned long end, pgprot_t newprot) + unsigned long addr, unsigned long end, pgprot_t newprot, + int dirty_accountable) { pte_t *pte, oldpte; spinlock_t *ptl; @@ -42,7 +43,14 @@ * bits by wiping the pte and then setting the new pte * into place. */ - ptent = pte_modify(ptep_get_and_clear(mm, addr, pte), newprot); + ptent = ptep_get_and_clear(mm, addr, pte); + ptent = pte_modify(ptent, newprot); + /* + * Avoid taking write faults for pages we know to be + * dirty. + */ + if (dirty_accountable && pte_dirty(ptent)) + ptent = pte_mkwrite(ptent); set_pte_at(mm, addr, pte, ptent); lazy_mmu_prot_update(ptent); #ifdef CONFIG_MIGRATION @@ -66,7 +74,8 @@ } static inline void change_pmd_range(struct mm_struct *mm, pud_t *pud, - unsigned long addr, unsigned long end, pgprot_t newprot) + unsigned long addr, unsigned long end, pgprot_t newprot, + int dirty_accountable) { pmd_t *pmd; unsigned long next; @@ -76,12 +85,13 @@ next = pmd_addr_end(addr, end); if (pmd_none_or_clear_bad(pmd)) continue; - change_pte_range(mm, pmd, addr, next, newprot); + change_pte_range(mm, pmd, addr, next, newprot, dirty_accountable); } while (pmd++, addr = next, addr != end); } static inline void change_pud_range(struct mm_struct *mm, pgd_t *pgd, - unsigned long addr, unsigned long end, pgprot_t newprot) + unsigned long addr, unsigned long end, pgprot_t newprot, + int dirty_accountable) { pud_t *pud; unsigned long next; @@ -91,12 +101,13 @@ next = pud_addr_end(addr, end); if (pud_none_or_clear_bad(pud)) continue; - change_pmd_range(mm, pud, addr, next, newprot); + change_pmd_range(mm, pud, addr, next, newprot, dirty_accountable); } while (pud++, addr = next, addr != end); } static void change_protection(struct vm_area_struct *vma, - unsigned long addr, unsigned long end, pgprot_t newprot) + unsigned long addr, unsigned long end, pgprot_t newprot, + int dirty_accountable) { struct mm_struct *mm = vma->vm_mm; pgd_t *pgd; @@ -110,7 +121,7 @@ next = pgd_addr_end(addr, end); if (pgd_none_or_clear_bad(pgd)) continue; - change_pud_range(mm, pgd, addr, next, newprot); + change_pud_range(mm, pgd, addr, next, newprot, dirty_accountable); } while (pgd++, addr = next, addr != end); flush_tlb_range(vma, start, end); } @@ -123,10 +134,9 @@ unsigned long oldflags = vma->vm_flags; long nrpages = (end - start) >> PAGE_SHIFT; unsigned long charged = 0; - unsigned int mask; - pgprot_t newprot; pgoff_t pgoff; int error; + int dirty_accountable = 0; if (newflags == oldflags) { *pprev = vma; @@ -176,24 +186,23 @@ } success: - /* Don't make the VMA automatically writable if it's shared, but the - * backer wishes to know when pages are first written to */ - mask = VM_READ|VM_WRITE|VM_EXEC|VM_SHARED; - if (vma->vm_ops && vma->vm_ops->page_mkwrite) - mask &= ~VM_SHARED; - - newprot = protection_map[newflags & mask]; - /* * vm_flags and vm_page_prot are protected by the mmap_sem * held in write mode. */ vma->vm_flags = newflags; - vma->vm_page_prot = newprot; + vma->vm_page_prot = protection_map[newflags & + (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]; + if (vma_wants_writenotify(vma)) { + vma->vm_page_prot = protection_map[newflags & + (VM_READ|VM_WRITE|VM_EXEC)]; + dirty_accountable = 1; + } + if (is_vm_hugetlb_page(vma)) - hugetlb_change_protection(vma, start, end, newprot); + hugetlb_change_protection(vma, start, end, vma->vm_page_prot); else - change_protection(vma, start, end, newprot); + change_protection(vma, start, end, vma->vm_page_prot, dirty_accountable); vm_stat_account(mm, oldflags, vma->vm_file, -nrpages); vm_stat_account(mm, newflags, vma->vm_file, nrpages); return 0;
diff --git a/mm/msync.c b/mm/msync.c index d083544..358d73c 100644 --- a/mm/msync.c +++ b/mm/msync.c
@@ -7,149 +7,33 @@ /* * The msync() system call. */ -#include <linux/slab.h> -#include <linux/pagemap.h> #include <linux/fs.h> #include <linux/mm.h> #include <linux/mman.h> -#include <linux/hugetlb.h> -#include <linux/writeback.h> #include <linux/file.h> #include <linux/syscalls.h> -#include <asm/pgtable.h> -#include <asm/tlbflush.h> - -static unsigned long msync_pte_range(struct vm_area_struct *vma, pmd_t *pmd, - unsigned long addr, unsigned long end) -{ - pte_t *pte; - spinlock_t *ptl; - int progress = 0; - unsigned long ret = 0; - -again: - pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl); - do { - struct page *page; - - if (progress >= 64) { - progress = 0; - if (need_resched() || need_lockbreak(ptl)) - break; - } - progress++; - if (!pte_present(*pte)) - continue; - if (!pte_maybe_dirty(*pte)) - continue; - page = vm_normal_page(vma, addr, *pte); - if (!page) - continue; - if (ptep_clear_flush_dirty(vma, addr, pte) || - page_test_and_clear_dirty(page)) - ret += set_page_dirty(page); - progress += 3; - } while (pte++, addr += PAGE_SIZE, addr != end); - pte_unmap_unlock(pte - 1, ptl); - cond_resched(); - if (addr != end) - goto again; - return ret; -} - -static inline unsigned long msync_pmd_range(struct vm_area_struct *vma, - pud_t *pud, unsigned long addr, unsigned long end) -{ - pmd_t *pmd; - unsigned long next; - unsigned long ret = 0; - - pmd = pmd_offset(pud, addr); - do { - next = pmd_addr_end(addr, end); - if (pmd_none_or_clear_bad(pmd)) - continue; - ret += msync_pte_range(vma, pmd, addr, next); - } while (pmd++, addr = next, addr != end); - return ret; -} - -static inline unsigned long msync_pud_range(struct vm_area_struct *vma, - pgd_t *pgd, unsigned long addr, unsigned long end) -{ - pud_t *pud; - unsigned long next; - unsigned long ret = 0; - - pud = pud_offset(pgd, addr); - do { - next = pud_addr_end(addr, end); - if (pud_none_or_clear_bad(pud)) - continue; - ret += msync_pmd_range(vma, pud, addr, next); - } while (pud++, addr = next, addr != end); - return ret; -} - -static unsigned long msync_page_range(struct vm_area_struct *vma, - unsigned long addr, unsigned long end) -{ - pgd_t *pgd; - unsigned long next; - unsigned long ret = 0; - - /* For hugepages we can't go walking the page table normally, - * but that's ok, hugetlbfs is memory based, so we don't need - * to do anything more on an msync(). - */ - if (vma->vm_flags & VM_HUGETLB) - return 0; - - BUG_ON(addr >= end); - pgd = pgd_offset(vma->vm_mm, addr); - flush_cache_range(vma, addr, end); - do { - next = pgd_addr_end(addr, end); - if (pgd_none_or_clear_bad(pgd)) - continue; - ret += msync_pud_range(vma, pgd, addr, next); - } while (pgd++, addr = next, addr != end); - return ret; -} - /* * MS_SYNC syncs the entire file - including mappings. * - * MS_ASYNC does not start I/O (it used to, up to 2.5.67). Instead, it just - * marks the relevant pages dirty. The application may now run fsync() to + * MS_ASYNC does not start I/O (it used to, up to 2.5.67). + * Nor does it marks the relevant pages dirty (it used to up to 2.6.17). + * Now it doesn't do anything, since dirty pages are properly tracked. + * + * The application may now run fsync() to * write out the dirty pages and wait on the writeout and check the result. * Or the application may run fadvise(FADV_DONTNEED) against the fd to start * async writeout immediately. * So by _not_ starting I/O in MS_ASYNC we provide complete flexibility to * applications. */ -static int msync_interval(struct vm_area_struct *vma, unsigned long addr, - unsigned long end, int flags, - unsigned long *nr_pages_dirtied) -{ - struct file *file = vma->vm_file; - - if ((flags & MS_INVALIDATE) && (vma->vm_flags & VM_LOCKED)) - return -EBUSY; - - if (file && (vma->vm_flags & VM_SHARED)) - *nr_pages_dirtied = msync_page_range(vma, addr, end); - return 0; -} - asmlinkage long sys_msync(unsigned long start, size_t len, int flags) { unsigned long end; + struct mm_struct *mm = current->mm; struct vm_area_struct *vma; int unmapped_error = 0; int error = -EINVAL; - int done = 0; if (flags & ~(MS_ASYNC | MS_INVALIDATE | MS_SYNC)) goto out; @@ -169,64 +53,50 @@ * If the interval [start,end) covers some unmapped address ranges, * just ignore them, but return -ENOMEM at the end. */ - down_read(¤t->mm->mmap_sem); - vma = find_vma(current->mm, start); - if (!vma) { - error = -ENOMEM; - goto out_unlock; - } - do { - unsigned long nr_pages_dirtied = 0; + down_read(&mm->mmap_sem); + vma = find_vma(mm, start); + for (;;) { struct file *file; + /* Still start < end. */ + error = -ENOMEM; + if (!vma) + goto out_unlock; /* Here start < vma->vm_end. */ if (start < vma->vm_start) { - unmapped_error = -ENOMEM; start = vma->vm_start; + if (start >= end) + goto out_unlock; + unmapped_error = -ENOMEM; } /* Here vma->vm_start <= start < vma->vm_end. */ - if (end <= vma->vm_end) { - if (start < end) { - error = msync_interval(vma, start, end, flags, - &nr_pages_dirtied); - if (error) - goto out_unlock; - } - error = unmapped_error; - done = 1; - } else { - /* Here vma->vm_start <= start < vma->vm_end < end. */ - error = msync_interval(vma, start, vma->vm_end, flags, - &nr_pages_dirtied); - if (error) - goto out_unlock; + if ((flags & MS_INVALIDATE) && + (vma->vm_flags & VM_LOCKED)) { + error = -EBUSY; + goto out_unlock; } file = vma->vm_file; start = vma->vm_end; - if ((flags & MS_ASYNC) && file && nr_pages_dirtied) { - get_file(file); - up_read(¤t->mm->mmap_sem); - balance_dirty_pages_ratelimited_nr(file->f_mapping, - nr_pages_dirtied); - fput(file); - down_read(¤t->mm->mmap_sem); - vma = find_vma(current->mm, start); - } else if ((flags & MS_SYNC) && file && + if ((flags & MS_SYNC) && file && (vma->vm_flags & VM_SHARED)) { get_file(file); - up_read(¤t->mm->mmap_sem); + up_read(&mm->mmap_sem); error = do_fsync(file, 0); fput(file); - down_read(¤t->mm->mmap_sem); - if (error) - goto out_unlock; - vma = find_vma(current->mm, start); + if (error || start >= end) + goto out; + down_read(&mm->mmap_sem); + vma = find_vma(mm, start); } else { + if (start >= end) { + error = 0; + goto out_unlock; + } vma = vma->vm_next; } - } while (vma && !done); + } out_unlock: - up_read(¤t->mm->mmap_sem); + up_read(&mm->mmap_sem); out: - return error; + return error ? : unmapped_error; }
diff --git a/mm/nommu.c b/mm/nommu.c index c576df7..5645406 100644 --- a/mm/nommu.c +++ b/mm/nommu.c
@@ -122,26 +122,50 @@ } /* - * The nommu dodgy version :-) + * get a list of pages in an address range belonging to the specified process + * and indicate the VMA that covers each page + * - this is potentially dodgy as we may end incrementing the page count of a + * slab page or a secondary page from a compound page + * - don't permit access to VMAs that don't support it, such as I/O mappings */ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, unsigned long start, int len, int write, int force, struct page **pages, struct vm_area_struct **vmas) { + struct vm_area_struct *vma; + unsigned long vm_flags; int i; - static struct vm_area_struct dummy_vma; + + /* calculate required read or write permissions. + * - if 'force' is set, we only require the "MAY" flags. + */ + vm_flags = write ? (VM_WRITE | VM_MAYWRITE) : (VM_READ | VM_MAYREAD); + vm_flags &= force ? (VM_MAYREAD | VM_MAYWRITE) : (VM_READ | VM_WRITE); for (i = 0; i < len; i++) { + vma = find_vma(mm, start); + if (!vma) + goto finish_or_fault; + + /* protect what we can, including chardevs */ + if (vma->vm_flags & (VM_IO | VM_PFNMAP) || + !(vm_flags & vma->vm_flags)) + goto finish_or_fault; + if (pages) { pages[i] = virt_to_page(start); if (pages[i]) page_cache_get(pages[i]); } if (vmas) - vmas[i] = &dummy_vma; + vmas[i] = vma; start += PAGE_SIZE; } - return(i); + + return i; + +finish_or_fault: + return i ? : -EFAULT; } EXPORT_SYMBOL(get_user_pages); @@ -286,6 +310,77 @@ } #endif /* DEBUG */ +/* + * add a VMA into a process's mm_struct in the appropriate place in the list + * - should be called with mm->mmap_sem held writelocked + */ +static void add_vma_to_mm(struct mm_struct *mm, struct vm_list_struct *vml) +{ + struct vm_list_struct **ppv; + + for (ppv = ¤t->mm->context.vmlist; *ppv; ppv = &(*ppv)->next) + if ((*ppv)->vma->vm_start > vml->vma->vm_start) + break; + + vml->next = *ppv; + *ppv = vml; +} + +/* + * look up the first VMA in which addr resides, NULL if none + * - should be called with mm->mmap_sem at least held readlocked + */ +struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) +{ + struct vm_list_struct *loop, *vml; + + /* search the vm_start ordered list */ + vml = NULL; + for (loop = mm->context.vmlist; loop; loop = loop->next) { + if (loop->vma->vm_start > addr) + break; + vml = loop; + } + + if (vml && vml->vma->vm_end > addr) + return vml->vma; + + return NULL; +} +EXPORT_SYMBOL(find_vma); + +/* + * find a VMA + * - we don't extend stack VMAs under NOMMU conditions + */ +struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr) +{ + return find_vma(mm, addr); +} + +/* + * look up the first VMA exactly that exactly matches addr + * - should be called with mm->mmap_sem at least held readlocked + */ +static inline struct vm_area_struct *find_vma_exact(struct mm_struct *mm, + unsigned long addr) +{ + struct vm_list_struct *vml; + + /* search the vm_start ordered list */ + for (vml = mm->context.vmlist; vml; vml = vml->next) { + if (vml->vma->vm_start == addr) + return vml->vma; + if (vml->vma->vm_start > addr) + break; + } + + return NULL; +} + +/* + * find a VMA in the global tree + */ static inline struct vm_area_struct *find_nommu_vma(unsigned long start) { struct vm_area_struct *vma; @@ -305,6 +400,9 @@ return NULL; } +/* + * add a VMA in the global tree + */ static void add_nommu_vma(struct vm_area_struct *vma) { struct vm_area_struct *pvma; @@ -351,6 +449,9 @@ rb_insert_color(&vma->vm_rb, &nommu_vma_tree); } +/* + * delete a VMA from the global list + */ static void delete_nommu_vma(struct vm_area_struct *vma) { struct address_space *mapping; @@ -828,8 +929,7 @@ realalloc += kobjsize(vml); askedalloc += sizeof(*vml); - vml->next = current->mm->context.vmlist; - current->mm->context.vmlist = vml; + add_vma_to_mm(current->mm, vml); up_write(&nommu_vma_sem); @@ -908,6 +1008,11 @@ } } +/* + * release a mapping + * - under NOMMU conditions the parameters must match exactly to the mapping to + * be removed + */ int do_munmap(struct mm_struct *mm, unsigned long addr, size_t len) { struct vm_list_struct *vml, **parent; @@ -917,10 +1022,13 @@ printk("do_munmap:\n"); #endif - for (parent = &mm->context.vmlist; *parent; parent = &(*parent)->next) + for (parent = &mm->context.vmlist; *parent; parent = &(*parent)->next) { + if ((*parent)->vma->vm_start > addr) + break; if ((*parent)->vma->vm_start == addr && ((len == 0) || ((*parent)->vma->vm_end == end))) goto found; + } printk("munmap of non-mmaped memory by process %d (%s): %p\n", current->pid, current->comm, (void *) addr); @@ -946,7 +1054,20 @@ return 0; } -/* Release all mmaps. */ +asmlinkage long sys_munmap(unsigned long addr, size_t len) +{ + int ret; + struct mm_struct *mm = current->mm; + + down_write(&mm->mmap_sem); + ret = do_munmap(mm, addr, len); + up_write(&mm->mmap_sem); + return ret; +} + +/* + * Release all mappings + */ void exit_mmap(struct mm_struct * mm) { struct vm_list_struct *tmp; @@ -973,37 +1094,26 @@ } } -asmlinkage long sys_munmap(unsigned long addr, size_t len) -{ - int ret; - struct mm_struct *mm = current->mm; - - down_write(&mm->mmap_sem); - ret = do_munmap(mm, addr, len); - up_write(&mm->mmap_sem); - return ret; -} - unsigned long do_brk(unsigned long addr, unsigned long len) { return -ENOMEM; } /* - * Expand (or shrink) an existing mapping, potentially moving it at the - * same time (controlled by the MREMAP_MAYMOVE flag and available VM space) + * expand (or shrink) an existing mapping, potentially moving it at the same + * time (controlled by the MREMAP_MAYMOVE flag and available VM space) * - * MREMAP_FIXED option added 5-Dec-1999 by Benjamin LaHaise - * This option implies MREMAP_MAYMOVE. + * under NOMMU conditions, we only permit changing a mapping's size, and only + * as long as it stays within the hole allocated by the kmalloc() call in + * do_mmap_pgoff() and the block is not shareable * - * on uClinux, we only permit changing a mapping's size, and only as long as it stays within the - * hole allocated by the kmalloc() call in do_mmap_pgoff() and the block is not shareable + * MREMAP_FIXED is not supported under NOMMU conditions */ unsigned long do_mremap(unsigned long addr, unsigned long old_len, unsigned long new_len, unsigned long flags, unsigned long new_addr) { - struct vm_list_struct *vml = NULL; + struct vm_area_struct *vma; /* insanity checks first */ if (new_len == 0) @@ -1012,58 +1122,46 @@ if (flags & MREMAP_FIXED && new_addr != addr) return (unsigned long) -EINVAL; - for (vml = current->mm->context.vmlist; vml; vml = vml->next) - if (vml->vma->vm_start == addr) - goto found; + vma = find_vma_exact(current->mm, addr); + if (!vma) + return (unsigned long) -EINVAL; - return (unsigned long) -EINVAL; - - found: - if (vml->vma->vm_end != vml->vma->vm_start + old_len) + if (vma->vm_end != vma->vm_start + old_len) return (unsigned long) -EFAULT; - if (vml->vma->vm_flags & VM_MAYSHARE) + if (vma->vm_flags & VM_MAYSHARE) return (unsigned long) -EPERM; if (new_len > kobjsize((void *) addr)) return (unsigned long) -ENOMEM; /* all checks complete - do it */ - vml->vma->vm_end = vml->vma->vm_start + new_len; + vma->vm_end = vma->vm_start + new_len; askedalloc -= old_len; askedalloc += new_len; - return vml->vma->vm_start; + return vma->vm_start; } -/* - * Look up the first VMA which satisfies addr < vm_end, NULL if none - */ -struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) +asmlinkage unsigned long sys_mremap(unsigned long addr, + unsigned long old_len, unsigned long new_len, + unsigned long flags, unsigned long new_addr) { - struct vm_list_struct *vml; + unsigned long ret; - for (vml = mm->context.vmlist; vml; vml = vml->next) - if (addr >= vml->vma->vm_start && addr < vml->vma->vm_end) - return vml->vma; - - return NULL; + down_write(¤t->mm->mmap_sem); + ret = do_mremap(addr, old_len, new_len, flags, new_addr); + up_write(¤t->mm->mmap_sem); + return ret; } -EXPORT_SYMBOL(find_vma); - struct page *follow_page(struct vm_area_struct *vma, unsigned long address, unsigned int foll_flags) { return NULL; } -struct vm_area_struct *find_extend_vma(struct mm_struct *mm, unsigned long addr) -{ - return NULL; -} - int remap_pfn_range(struct vm_area_struct *vma, unsigned long from, unsigned long to, unsigned long size, pgprot_t prot) { @@ -1133,7 +1231,7 @@ * which are reclaimable, under pressure. The dentry * cache and most inode caches should fall into this */ - free += atomic_read(&slab_reclaim_pages); + free += global_page_state(NR_SLAB_RECLAIMABLE); /* * Leave the last 3% for root @@ -1206,3 +1304,44 @@ BUG(); return NULL; } + +/* + * Access another process' address space. + * - source/target buffer must be kernel space + */ +int access_process_vm(struct task_struct *tsk, unsigned long addr, void *buf, int len, int write) +{ + struct vm_area_struct *vma; + struct mm_struct *mm; + + if (addr + len < addr) + return 0; + + mm = get_task_mm(tsk); + if (!mm) + return 0; + + down_read(&mm->mmap_sem); + + /* the access must start within one of the target process's mappings */ + vma = find_vma(mm, addr); + if (vma) { + /* don't overrun this mapping */ + if (addr + len >= vma->vm_end) + len = vma->vm_end - addr; + + /* only read or write mappings where it is permitted */ + if (write && vma->vm_flags & VM_MAYWRITE) + len -= copy_to_user((void *) addr, buf, len); + else if (!write && vma->vm_flags & VM_MAYREAD) + len -= copy_from_user(buf, (void *) addr, len); + else + len = 0; + } else { + len = 0; + } + + up_read(&mm->mmap_sem); + mmput(mm); + return len; +}
diff --git a/mm/oom_kill.c b/mm/oom_kill.c index b9af136..bada3d0 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c
@@ -21,6 +21,8 @@ #include <linux/timex.h> #include <linux/jiffies.h> #include <linux/cpuset.h> +#include <linux/module.h> +#include <linux/notifier.h> int sysctl_panic_on_oom; /* #define DEBUG */ @@ -58,6 +60,12 @@ } /* + * swapoff can easily use up all memory, so kill those first. + */ + if (p->flags & PF_SWAPOFF) + return ULONG_MAX; + + /* * The memory size of the process is the basis for the badness. */ points = mm->total_vm; @@ -127,6 +135,14 @@ points /= 4; /* + * If p's nodes don't overlap ours, it may still help to kill p + * because p may have allocated or otherwise mapped memory on + * this node before. However it will be less likely. + */ + if (!cpuset_excl_nodes_overlap(p)) + points /= 8; + + /* * Adjust the score by oomkilladj. */ if (p->oomkilladj) { @@ -161,8 +177,7 @@ for (z = zonelist->zones; *z; z++) if (cpuset_zone_allowed(*z, gfp_mask)) - node_clear((*z)->zone_pgdat->node_id, - nodes); + node_clear(zone_to_nid(*z), nodes); else return CONSTRAINT_CPUSET; @@ -191,25 +206,38 @@ unsigned long points; int releasing; + /* skip kernel threads */ + if (!p->mm) + continue; /* skip the init task with pid == 1 */ if (p->pid == 1) continue; - if (p->oomkilladj == OOM_DISABLE) - continue; - /* If p's nodes don't overlap ours, it won't help to kill p. */ - if (!cpuset_excl_nodes_overlap(p)) - continue; /* * This is in the process of releasing memory so wait for it * to finish before killing some other task by mistake. + * + * However, if p is the current task, we allow the 'kill' to + * go ahead if it is exiting: this will simply set TIF_MEMDIE, + * which will allow it to gain access to memory reserves in + * the process of exiting and releasing its resources. + * Otherwise we could get an OOM deadlock. */ releasing = test_tsk_thread_flag(p, TIF_MEMDIE) || p->flags & PF_EXITING; - if (releasing && !(p->flags & PF_DEAD)) + if (releasing) { + /* PF_DEAD tasks have already released their mm */ + if (p->flags & PF_DEAD) + continue; + if (p->flags & PF_EXITING && p == current) { + chosen = p; + *ppoints = ULONG_MAX; + break; + } return ERR_PTR(-1UL); - if (p->flags & PF_SWAPOFF) - return p; + } + if (p->oomkilladj == OOM_DISABLE) + continue; points = badness(p, uptime.tv_sec); if (points > *ppoints || !chosen) { @@ -221,9 +249,9 @@ } /** - * We must be careful though to never send SIGKILL a process with - * CAP_SYS_RAW_IO set, send SIGTERM instead (but it's unlikely that - * we select a process with CAP_SYS_RAW_IO set). + * Send SIGKILL to the selected process irrespective of CAP_SYS_RAW_IO + * flag though it's unlikely that we select a process with CAP_SYS_RAW_IO + * set. */ static void __oom_kill_task(struct task_struct *p, const char *message) { @@ -241,8 +269,11 @@ return; } task_unlock(p); - printk(KERN_ERR "%s: Killed process %d (%s).\n", + + if (message) { + printk(KERN_ERR "%s: Killed process %d (%s).\n", message, p->pid, p->comm); + } /* * We give our sacrificial lamb high priority and access to @@ -293,8 +324,17 @@ struct task_struct *c; struct list_head *tsk; - printk(KERN_ERR "Out of Memory: Kill process %d (%s) score %li and " - "children.\n", p->pid, p->comm, points); + /* + * If the task is already exiting, don't alarm the sysadmin or kill + * its children or threads, just set TIF_MEMDIE so it can die quickly + */ + if (p->flags & PF_EXITING) { + __oom_kill_task(p, NULL); + return 0; + } + + printk(KERN_ERR "Out of Memory: Kill process %d (%s) score %li" + " and children.\n", p->pid, p->comm, points); /* Try to kill a child first */ list_for_each(tsk, &p->children) { c = list_entry(tsk, struct task_struct, sibling); @@ -306,6 +346,20 @@ return oom_kill_task(p, message); } +static BLOCKING_NOTIFIER_HEAD(oom_notify_list); + +int register_oom_notifier(struct notifier_block *nb) +{ + return blocking_notifier_chain_register(&oom_notify_list, nb); +} +EXPORT_SYMBOL_GPL(register_oom_notifier); + +int unregister_oom_notifier(struct notifier_block *nb) +{ + return blocking_notifier_chain_unregister(&oom_notify_list, nb); +} +EXPORT_SYMBOL_GPL(unregister_oom_notifier); + /** * out_of_memory - kill the "best" process when we run out of memory * @@ -318,10 +372,17 @@ { struct task_struct *p; unsigned long points = 0; + unsigned long freed = 0; + + blocking_notifier_call_chain(&oom_notify_list, 0, &freed); + if (freed > 0) + /* Got some memory back in the last second. */ + return; if (printk_ratelimit()) { - printk("oom-killer: gfp_mask=0x%x, order=%d\n", - gfp_mask, order); + printk(KERN_WARNING "%s invoked oom-killer: " + "gfp_mask=0x%x, order=%d, oomkilladj=%d\n", + current->comm, gfp_mask, order, current->oomkilladj); dump_stack(); show_mem(); }
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 77a0bc4..5557529 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c
@@ -23,6 +23,7 @@ #include <linux/backing-dev.h> #include <linux/blkdev.h> #include <linux/mpage.h> +#include <linux/rmap.h> #include <linux/percpu.h> #include <linux/notifier.h> #include <linux/smp.h> @@ -243,6 +244,16 @@ pdflush_operation(background_writeout, 0); } +void set_page_dirty_balance(struct page *page) +{ + if (set_page_dirty(page)) { + struct address_space *mapping = page_mapping(page); + + if (mapping) + balance_dirty_pages_ratelimited(mapping); + } +} + /** * balance_dirty_pages_ratelimited_nr - balance dirty memory state * @mapping: address_space which was dirtied @@ -550,7 +561,7 @@ return 0; wbc->for_writepages = 1; if (mapping->a_ops->writepages) - ret = mapping->a_ops->writepages(mapping, wbc); + ret = mapping->a_ops->writepages(mapping, wbc); else ret = generic_writepages(mapping, wbc); wbc->for_writepages = 0; @@ -690,7 +701,7 @@ { int ret; - lock_page(page); + lock_page_nosync(page); ret = set_page_dirty(page); unlock_page(page); return ret; @@ -712,9 +723,15 @@ radix_tree_tag_clear(&mapping->page_tree, page_index(page), PAGECACHE_TAG_DIRTY); - if (mapping_cap_account_dirty(mapping)) - __dec_zone_page_state(page, NR_FILE_DIRTY); write_unlock_irqrestore(&mapping->tree_lock, flags); + /* + * We can continue to use `mapping' here because the + * page is locked, which pins the address_space + */ + if (mapping_cap_account_dirty(mapping)) { + page_mkclean(page); + dec_zone_page_state(page, NR_FILE_DIRTY); + } return 1; } write_unlock_irqrestore(&mapping->tree_lock, flags); @@ -744,8 +761,10 @@ if (mapping) { if (TestClearPageDirty(page)) { - if (mapping_cap_account_dirty(mapping)) + if (mapping_cap_account_dirty(mapping)) { + page_mkclean(page); dec_zone_page_state(page, NR_FILE_DIRTY); + } return 1; } return 0;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 3b5358a..4f59d90 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c
@@ -37,6 +37,8 @@ #include <linux/vmalloc.h> #include <linux/mempolicy.h> #include <linux/stop_machine.h> +#include <linux/sort.h> +#include <linux/pfn.h> #include <asm/tlbflush.h> #include <asm/div64.h> @@ -51,7 +53,6 @@ nodemask_t node_possible_map __read_mostly = NODE_MASK_ALL; EXPORT_SYMBOL(node_possible_map); unsigned long totalram_pages __read_mostly; -unsigned long totalhigh_pages __read_mostly; unsigned long totalreserve_pages __read_mostly; long nr_swap_pages; int percpu_pagelist_fraction; @@ -69,7 +70,15 @@ * TBD: should special case ZONE_DMA32 machines here - in those we normally * don't need any ZONE_NORMAL reservation */ -int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES-1] = { 256, 256, 32 }; +int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES-1] = { + 256, +#ifdef CONFIG_ZONE_DMA32 + 256, +#endif +#ifdef CONFIG_HIGHMEM + 32 +#endif +}; EXPORT_SYMBOL(totalram_pages); @@ -80,11 +89,53 @@ struct zone *zone_table[1 << ZONETABLE_SHIFT] __read_mostly; EXPORT_SYMBOL(zone_table); -static char *zone_names[MAX_NR_ZONES] = { "DMA", "DMA32", "Normal", "HighMem" }; +static char *zone_names[MAX_NR_ZONES] = { + "DMA", +#ifdef CONFIG_ZONE_DMA32 + "DMA32", +#endif + "Normal", +#ifdef CONFIG_HIGHMEM + "HighMem" +#endif +}; + int min_free_kbytes = 1024; unsigned long __meminitdata nr_kernel_pages; unsigned long __meminitdata nr_all_pages; +static unsigned long __initdata dma_reserve; + +#ifdef CONFIG_ARCH_POPULATES_NODE_MAP + /* + * MAX_ACTIVE_REGIONS determines the maxmimum number of distinct + * ranges of memory (RAM) that may be registered with add_active_range(). + * Ranges passed to add_active_range() will be merged if possible + * so the number of times add_active_range() can be called is + * related to the number of nodes and the number of holes + */ + #ifdef CONFIG_MAX_ACTIVE_REGIONS + /* Allow an architecture to set MAX_ACTIVE_REGIONS to save memory */ + #define MAX_ACTIVE_REGIONS CONFIG_MAX_ACTIVE_REGIONS + #else + #if MAX_NUMNODES >= 32 + /* If there can be many nodes, allow up to 50 holes per node */ + #define MAX_ACTIVE_REGIONS (MAX_NUMNODES*50) + #else + /* By default, allow up to 256 distinct regions */ + #define MAX_ACTIVE_REGIONS 256 + #endif + #endif + + struct node_active_region __initdata early_node_map[MAX_ACTIVE_REGIONS]; + int __initdata nr_nodemap_entries; + unsigned long __initdata arch_zone_lowest_possible_pfn[MAX_NR_ZONES]; + unsigned long __initdata arch_zone_highest_possible_pfn[MAX_NR_ZONES]; +#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE + unsigned long __initdata node_boundary_start_pfn[MAX_NUMNODES]; + unsigned long __initdata node_boundary_end_pfn[MAX_NUMNODES]; +#endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */ +#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ #ifdef CONFIG_DEBUG_VM static int page_outside_zone_boundaries(struct zone *zone, struct page *page) @@ -127,7 +178,6 @@ return 0; } - #else static inline int bad_range(struct zone *zone, struct page *page) { @@ -218,12 +268,12 @@ { int i; - BUG_ON((gfp_flags & (__GFP_WAIT | __GFP_HIGHMEM)) == __GFP_HIGHMEM); + VM_BUG_ON((gfp_flags & (__GFP_WAIT | __GFP_HIGHMEM)) == __GFP_HIGHMEM); /* * clear_highpage() will use KM_USER0, so it's a bug to use __GFP_ZERO * and __GFP_HIGHMEM from hard or soft interrupt context. */ - BUG_ON((gfp_flags & __GFP_HIGHMEM) && in_interrupt()); + VM_BUG_ON((gfp_flags & __GFP_HIGHMEM) && in_interrupt()); for (i = 0; i < (1 << order); i++) clear_highpage(page + i); } @@ -347,8 +397,8 @@ page_idx = page_to_pfn(page) & ((1 << MAX_ORDER) - 1); - BUG_ON(page_idx & (order_size - 1)); - BUG_ON(bad_range(zone, page)); + VM_BUG_ON(page_idx & (order_size - 1)); + VM_BUG_ON(bad_range(zone, page)); zone->free_pages += order_size; while (order < MAX_ORDER-1) { @@ -421,7 +471,7 @@ while (count--) { struct page *page; - BUG_ON(list_empty(list)); + VM_BUG_ON(list_empty(list)); page = list_entry(list->prev, struct page, lru); /* have to delete it as __free_one_page list manipulates */ list_del(&page->lru); @@ -432,9 +482,11 @@ static void free_one_page(struct zone *zone, struct page *page, int order) { - LIST_HEAD(list); - list_add(&page->lru, &list); - free_pages_bulk(zone, 1, &list, order); + spin_lock(&zone->lock); + zone->all_unreclaimable = 0; + zone->pages_scanned = 0; + __free_one_page(page, zone ,order); + spin_unlock(&zone->lock); } static void __free_pages_ok(struct page *page, unsigned int order) @@ -512,7 +564,7 @@ area--; high--; size >>= 1; - BUG_ON(bad_range(zone, &page[size])); + VM_BUG_ON(bad_range(zone, &page[size])); list_add(&page[size].lru, &area->free_list); area->nr_free++; set_page_order(&page[size], high); @@ -615,19 +667,23 @@ #ifdef CONFIG_NUMA /* * Called from the slab reaper to drain pagesets on a particular node that - * belong to the currently executing processor. + * belongs to the currently executing processor. * Note that this function must be called with the thread pinned to * a single processor. */ void drain_node_pages(int nodeid) { - int i, z; + int i; + enum zone_type z; unsigned long flags; for (z = 0; z < MAX_NR_ZONES; z++) { struct zone *zone = NODE_DATA(nodeid)->node_zones + z; struct per_cpu_pageset *pset; + if (!populated_zone(zone)) + continue; + pset = zone_pcp(zone, smp_processor_id()); for (i = 0; i < ARRAY_SIZE(pset->pcp); i++) { struct per_cpu_pages *pcp; @@ -672,7 +728,8 @@ void mark_free_pages(struct zone *zone) { - unsigned long zone_pfn, flags; + unsigned long pfn, max_zone_pfn; + unsigned long flags; int order; struct list_head *curr; @@ -680,18 +737,25 @@ return; spin_lock_irqsave(&zone->lock, flags); - for (zone_pfn = 0; zone_pfn < zone->spanned_pages; ++zone_pfn) - ClearPageNosaveFree(pfn_to_page(zone_pfn + zone->zone_start_pfn)); + + max_zone_pfn = zone->zone_start_pfn + zone->spanned_pages; + for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++) + if (pfn_valid(pfn)) { + struct page *page = pfn_to_page(pfn); + + if (!PageNosave(page)) + ClearPageNosaveFree(page); + } for (order = MAX_ORDER - 1; order >= 0; --order) list_for_each(curr, &zone->free_area[order].free_list) { - unsigned long start_pfn, i; + unsigned long i; - start_pfn = page_to_pfn(list_entry(curr, struct page, lru)); + pfn = page_to_pfn(list_entry(curr, struct page, lru)); + for (i = 0; i < (1UL << order); i++) + SetPageNosaveFree(pfn_to_page(pfn + i)); + } - for (i=0; i < (1<<order); i++) - SetPageNosaveFree(pfn_to_page(start_pfn+i)); - } spin_unlock_irqrestore(&zone->lock, flags); } @@ -761,8 +825,8 @@ { int i; - BUG_ON(PageCompound(page)); - BUG_ON(!page_count(page)); + VM_BUG_ON(PageCompound(page)); + VM_BUG_ON(!page_count(page)); for (i = 1; i < (1 << order); i++) set_page_refcounted(page + i); } @@ -809,7 +873,7 @@ local_irq_restore(flags); put_cpu(); - BUG_ON(bad_range(zone, page)); + VM_BUG_ON(bad_range(zone, page)); if (prep_new_page(page, order, gfp_flags)) goto again; return page; @@ -870,32 +934,37 @@ struct zone **z = zonelist->zones; struct page *page = NULL; int classzone_idx = zone_idx(*z); + struct zone *zone; /* * Go through the zonelist once, looking for a zone with enough free. * See also cpuset_zone_allowed() comment in kernel/cpuset.c. */ do { + zone = *z; + if (unlikely(NUMA_BUILD && (gfp_mask & __GFP_THISNODE) && + zone->zone_pgdat != zonelist->zones[0]->zone_pgdat)) + break; if ((alloc_flags & ALLOC_CPUSET) && - !cpuset_zone_allowed(*z, gfp_mask)) + !cpuset_zone_allowed(zone, gfp_mask)) continue; if (!(alloc_flags & ALLOC_NO_WATERMARKS)) { unsigned long mark; if (alloc_flags & ALLOC_WMARK_MIN) - mark = (*z)->pages_min; + mark = zone->pages_min; else if (alloc_flags & ALLOC_WMARK_LOW) - mark = (*z)->pages_low; + mark = zone->pages_low; else - mark = (*z)->pages_high; - if (!zone_watermark_ok(*z, order, mark, + mark = zone->pages_high; + if (!zone_watermark_ok(zone , order, mark, classzone_idx, alloc_flags)) if (!zone_reclaim_mode || - !zone_reclaim(*z, gfp_mask, order)) + !zone_reclaim(zone, gfp_mask, order)) continue; } - page = buffered_rmqueue(zonelist, *z, order, gfp_mask); + page = buffered_rmqueue(zonelist, zone, order, gfp_mask); if (page) { break; } @@ -1083,7 +1152,7 @@ * get_zeroed_page() returns a 32-bit address, which cannot represent * a highmem page */ - BUG_ON((gfp_mask & __GFP_HIGHMEM) != 0); + VM_BUG_ON((gfp_mask & __GFP_HIGHMEM) != 0); page = alloc_pages(gfp_mask | __GFP_ZERO, 0); if (page) @@ -1116,7 +1185,7 @@ fastcall void free_pages(unsigned long addr, unsigned int order) { if (addr != 0) { - BUG_ON(!virt_addr_valid((void *)addr)); + VM_BUG_ON(!virt_addr_valid((void *)addr)); __free_pages(virt_to_page((void *)addr), order); } } @@ -1142,7 +1211,8 @@ #ifdef CONFIG_NUMA unsigned int nr_free_pages_pgdat(pg_data_t *pgdat) { - unsigned int i, sum = 0; + unsigned int sum = 0; + enum zone_type i; for (i = 0; i < MAX_NR_ZONES; i++) sum += pgdat->node_zones[i].free_pages; @@ -1187,27 +1257,11 @@ return nr_free_zone_pages(gfp_zone(GFP_HIGHUSER)); } -#ifdef CONFIG_HIGHMEM -unsigned int nr_free_highpages (void) +static inline void show_node(struct zone *zone) { - pg_data_t *pgdat; - unsigned int pages = 0; - - for_each_online_pgdat(pgdat) - pages += pgdat->node_zones[ZONE_HIGHMEM].free_pages; - - return pages; + if (NUMA_BUILD) + printk("Node %ld ", zone_to_nid(zone)); } -#endif - -#ifdef CONFIG_NUMA -static void show_node(struct zone *zone) -{ - printk("Node %d ", zone->zone_pgdat->node_id); -} -#else -#define show_node(zone) do { } while (0) -#endif void si_meminfo(struct sysinfo *val) { @@ -1215,13 +1269,8 @@ val->sharedram = 0; val->freeram = nr_free_pages(); val->bufferram = nr_blockdev_pages(); -#ifdef CONFIG_HIGHMEM val->totalhigh = totalhigh_pages; val->freehigh = nr_free_highpages(); -#else - val->totalhigh = 0; - val->freehigh = 0; -#endif val->mem_unit = PAGE_SIZE; } @@ -1234,8 +1283,13 @@ val->totalram = pgdat->node_present_pages; val->freeram = nr_free_pages_pgdat(pgdat); +#ifdef CONFIG_HIGHMEM val->totalhigh = pgdat->node_zones[ZONE_HIGHMEM].present_pages; val->freehigh = pgdat->node_zones[ZONE_HIGHMEM].free_pages; +#else + val->totalhigh = 0; + val->freehigh = 0; +#endif val->mem_unit = PAGE_SIZE; } #endif @@ -1249,43 +1303,35 @@ */ void show_free_areas(void) { - int cpu, temperature; + int cpu; unsigned long active; unsigned long inactive; unsigned long free; struct zone *zone; for_each_zone(zone) { - show_node(zone); - printk("%s per-cpu:", zone->name); - - if (!populated_zone(zone)) { - printk(" empty\n"); + if (!populated_zone(zone)) continue; - } else - printk("\n"); + + show_node(zone); + printk("%s per-cpu:\n", zone->name); for_each_online_cpu(cpu) { struct per_cpu_pageset *pageset; pageset = zone_pcp(zone, cpu); - for (temperature = 0; temperature < 2; temperature++) - printk("cpu %d %s: high %d, batch %d used:%d\n", - cpu, - temperature ? "cold" : "hot", - pageset->pcp[temperature].high, - pageset->pcp[temperature].batch, - pageset->pcp[temperature].count); + printk("CPU %4d: Hot: hi:%5d, btch:%4d usd:%4d " + "Cold: hi:%5d, btch:%4d usd:%4d\n", + cpu, pageset->pcp[0].high, + pageset->pcp[0].batch, pageset->pcp[0].count, + pageset->pcp[1].high, pageset->pcp[1].batch, + pageset->pcp[1].count); } } get_zone_counts(&active, &inactive, &free); - printk("Free pages: %11ukB (%ukB HighMem)\n", - K(nr_free_pages()), - K(nr_free_highpages())); - printk("Active:%lu inactive:%lu dirty:%lu writeback:%lu " "unstable:%lu free:%u slab:%lu mapped:%lu pagetables:%lu\n", active, @@ -1294,13 +1340,17 @@ global_page_state(NR_WRITEBACK), global_page_state(NR_UNSTABLE_NFS), nr_free_pages(), - global_page_state(NR_SLAB), + global_page_state(NR_SLAB_RECLAIMABLE) + + global_page_state(NR_SLAB_UNRECLAIMABLE), global_page_state(NR_FILE_MAPPED), global_page_state(NR_PAGETABLE)); for_each_zone(zone) { int i; + if (!populated_zone(zone)) + continue; + show_node(zone); printk("%s" " free:%lukB" @@ -1333,12 +1383,11 @@ for_each_zone(zone) { unsigned long nr[MAX_ORDER], flags, order, total = 0; + if (!populated_zone(zone)) + continue; + show_node(zone); printk("%s: ", zone->name); - if (!populated_zone(zone)) { - printk("empty\n"); - continue; - } spin_lock_irqsave(&zone->lock, flags); for (order = 0; order < MAX_ORDER; order++) { @@ -1360,39 +1409,25 @@ * Add all populated zones of a node to the zonelist. */ static int __meminit build_zonelists_node(pg_data_t *pgdat, - struct zonelist *zonelist, int nr_zones, int zone_type) + struct zonelist *zonelist, int nr_zones, enum zone_type zone_type) { struct zone *zone; - BUG_ON(zone_type > ZONE_HIGHMEM); + BUG_ON(zone_type >= MAX_NR_ZONES); + zone_type++; do { + zone_type--; zone = pgdat->node_zones + zone_type; if (populated_zone(zone)) { -#ifndef CONFIG_HIGHMEM - BUG_ON(zone_type > ZONE_NORMAL); -#endif zonelist->zones[nr_zones++] = zone; check_highest_zone(zone_type); } - zone_type--; - } while (zone_type >= 0); + } while (zone_type); return nr_zones; } -static inline int highest_zone(int zone_bits) -{ - int res = ZONE_NORMAL; - if (zone_bits & (__force int)__GFP_HIGHMEM) - res = ZONE_HIGHMEM; - if (zone_bits & (__force int)__GFP_DMA32) - res = ZONE_DMA32; - if (zone_bits & (__force int)__GFP_DMA) - res = ZONE_DMA; - return res; -} - #ifdef CONFIG_NUMA #define MAX_NODE_LOAD (num_online_nodes()) static int __meminitdata node_load[MAX_NUMNODES]; @@ -1458,13 +1493,14 @@ static void __meminit build_zonelists(pg_data_t *pgdat) { - int i, j, k, node, local_node; + int j, node, local_node; + enum zone_type i; int prev_node, load; struct zonelist *zonelist; nodemask_t used_mask; /* initialize zonelists */ - for (i = 0; i < GFP_ZONETYPES; i++) { + for (i = 0; i < MAX_NR_ZONES; i++) { zonelist = pgdat->node_zonelists + i; zonelist->zones[0] = NULL; } @@ -1494,13 +1530,11 @@ node_load[node] += load; prev_node = node; load--; - for (i = 0; i < GFP_ZONETYPES; i++) { + for (i = 0; i < MAX_NR_ZONES; i++) { zonelist = pgdat->node_zonelists + i; for (j = 0; zonelist->zones[j] != NULL; j++); - k = highest_zone(i); - - j = build_zonelists_node(NODE_DATA(node), zonelist, j, k); + j = build_zonelists_node(NODE_DATA(node), zonelist, j, i); zonelist->zones[j] = NULL; } } @@ -1510,17 +1544,16 @@ static void __meminit build_zonelists(pg_data_t *pgdat) { - int i, j, k, node, local_node; + int node, local_node; + enum zone_type i,j; local_node = pgdat->node_id; - for (i = 0; i < GFP_ZONETYPES; i++) { + for (i = 0; i < MAX_NR_ZONES; i++) { struct zonelist *zonelist; zonelist = pgdat->node_zonelists + i; - j = 0; - k = highest_zone(i); - j = build_zonelists_node(pgdat, zonelist, j, k); + j = build_zonelists_node(pgdat, zonelist, 0, i); /* * Now we build the zonelist so that it contains the zones * of all the other nodes. @@ -1532,12 +1565,12 @@ for (node = local_node + 1; node < MAX_NUMNODES; node++) { if (!node_online(node)) continue; - j = build_zonelists_node(NODE_DATA(node), zonelist, j, k); + j = build_zonelists_node(NODE_DATA(node), zonelist, j, i); } for (node = 0; node < local_node; node++) { if (!node_online(node)) continue; - j = build_zonelists_node(NODE_DATA(node), zonelist, j, k); + j = build_zonelists_node(NODE_DATA(node), zonelist, j, i); } zonelist->zones[j] = NULL; @@ -1558,7 +1591,7 @@ void __meminit build_all_zonelists(void) { if (system_state == SYSTEM_BOOTING) { - __build_all_zonelists(0); + __build_all_zonelists(NULL); cpuset_init_current_mems_allowed(); } else { /* we have to stop all cpus to guaranntee there is no user @@ -1639,25 +1672,6 @@ #define LONG_ALIGN(x) (((x)+(sizeof(long))-1)&~((sizeof(long))-1)) -static void __init calculate_zone_totalpages(struct pglist_data *pgdat, - unsigned long *zones_size, unsigned long *zholes_size) -{ - unsigned long realtotalpages, totalpages = 0; - int i; - - for (i = 0; i < MAX_NR_ZONES; i++) - totalpages += zones_size[i]; - pgdat->node_spanned_pages = totalpages; - - realtotalpages = totalpages; - if (zholes_size) - for (i = 0; i < MAX_NR_ZONES; i++) - realtotalpages -= zholes_size[i]; - pgdat->node_present_pages = realtotalpages; - printk(KERN_DEBUG "On node %d totalpages: %lu\n", pgdat->node_id, realtotalpages); -} - - /* * Initially all pages are reserved - free ones are freed * up by free_all_bootmem() once the early boot process is @@ -1698,8 +1712,8 @@ } #define ZONETABLE_INDEX(x, zone_nr) ((x << ZONES_SHIFT) | zone_nr) -void zonetable_add(struct zone *zone, int nid, int zid, unsigned long pfn, - unsigned long size) +void zonetable_add(struct zone *zone, int nid, enum zone_type zid, + unsigned long pfn, unsigned long size) { unsigned long snum = pfn_to_section_nr(pfn); unsigned long end = pfn_to_section_nr(pfn + size); @@ -1815,6 +1829,9 @@ for_each_zone(zone) { + if (!populated_zone(zone)) + continue; + zone_pcp(zone, cpu) = kmalloc_node(sizeof(struct per_cpu_pageset), GFP_KERNEL, cpu_to_node(cpu)); if (!zone_pcp(zone, cpu)) @@ -1845,8 +1862,10 @@ for_each_zone(zone) { struct per_cpu_pageset *pset = zone_pcp(zone, cpu); + /* Free per_cpu_pageset if it is slab allocated */ + if (pset != &boot_pageset[cpu]) + kfree(pset); zone_pcp(zone, cpu) = NULL; - kfree(pset); } } @@ -1972,6 +1991,366 @@ return 0; } +#ifdef CONFIG_ARCH_POPULATES_NODE_MAP +/* + * Basic iterator support. Return the first range of PFNs for a node + * Note: nid == MAX_NUMNODES returns first region regardless of node + */ +static int __init first_active_region_index_in_nid(int nid) +{ + int i; + + for (i = 0; i < nr_nodemap_entries; i++) + if (nid == MAX_NUMNODES || early_node_map[i].nid == nid) + return i; + + return -1; +} + +/* + * Basic iterator support. Return the next active range of PFNs for a node + * Note: nid == MAX_NUMNODES returns next region regardles of node + */ +static int __init next_active_region_index_in_nid(int index, int nid) +{ + for (index = index + 1; index < nr_nodemap_entries; index++) + if (nid == MAX_NUMNODES || early_node_map[index].nid == nid) + return index; + + return -1; +} + +#ifndef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID +/* + * Required by SPARSEMEM. Given a PFN, return what node the PFN is on. + * Architectures may implement their own version but if add_active_range() + * was used and there are no special requirements, this is a convenient + * alternative + */ +int __init early_pfn_to_nid(unsigned long pfn) +{ + int i; + + for (i = 0; i < nr_nodemap_entries; i++) { + unsigned long start_pfn = early_node_map[i].start_pfn; + unsigned long end_pfn = early_node_map[i].end_pfn; + + if (start_pfn <= pfn && pfn < end_pfn) + return early_node_map[i].nid; + } + + return 0; +} +#endif /* CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID */ + +/* Basic iterator support to walk early_node_map[] */ +#define for_each_active_range_index_in_nid(i, nid) \ + for (i = first_active_region_index_in_nid(nid); i != -1; \ + i = next_active_region_index_in_nid(i, nid)) + +/** + * free_bootmem_with_active_regions - Call free_bootmem_node for each active range + * @nid: The node to free memory on. If MAX_NUMNODES, all nodes are freed + * @max_low_pfn: The highest PFN that till be passed to free_bootmem_node + * + * If an architecture guarantees that all ranges registered with + * add_active_ranges() contain no holes and may be freed, this + * this function may be used instead of calling free_bootmem() manually. + */ +void __init free_bootmem_with_active_regions(int nid, + unsigned long max_low_pfn) +{ + int i; + + for_each_active_range_index_in_nid(i, nid) { + unsigned long size_pages = 0; + unsigned long end_pfn = early_node_map[i].end_pfn; + + if (early_node_map[i].start_pfn >= max_low_pfn) + continue; + + if (end_pfn > max_low_pfn) + end_pfn = max_low_pfn; + + size_pages = end_pfn - early_node_map[i].start_pfn; + free_bootmem_node(NODE_DATA(early_node_map[i].nid), + PFN_PHYS(early_node_map[i].start_pfn), + size_pages << PAGE_SHIFT); + } +} + +/** + * sparse_memory_present_with_active_regions - Call memory_present for each active range + * @nid: The node to call memory_present for. If MAX_NUMNODES, all nodes will be used + * + * If an architecture guarantees that all ranges registered with + * add_active_ranges() contain no holes and may be freed, this + * this function may be used instead of calling memory_present() manually. + */ +void __init sparse_memory_present_with_active_regions(int nid) +{ + int i; + + for_each_active_range_index_in_nid(i, nid) + memory_present(early_node_map[i].nid, + early_node_map[i].start_pfn, + early_node_map[i].end_pfn); +} + +/** + * push_node_boundaries - Push node boundaries to at least the requested boundary + * @nid: The nid of the node to push the boundary for + * @start_pfn: The start pfn of the node + * @end_pfn: The end pfn of the node + * + * In reserve-based hot-add, mem_map is allocated that is unused until hotadd + * time. Specifically, on x86_64, SRAT will report ranges that can potentially + * be hotplugged even though no physical memory exists. This function allows + * an arch to push out the node boundaries so mem_map is allocated that can + * be used later. + */ +#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE +void __init push_node_boundaries(unsigned int nid, + unsigned long start_pfn, unsigned long end_pfn) +{ + printk(KERN_DEBUG "Entering push_node_boundaries(%u, %lu, %lu)\n", + nid, start_pfn, end_pfn); + + /* Initialise the boundary for this node if necessary */ + if (node_boundary_end_pfn[nid] == 0) + node_boundary_start_pfn[nid] = -1UL; + + /* Update the boundaries */ + if (node_boundary_start_pfn[nid] > start_pfn) + node_boundary_start_pfn[nid] = start_pfn; + if (node_boundary_end_pfn[nid] < end_pfn) + node_boundary_end_pfn[nid] = end_pfn; +} + +/* If necessary, push the node boundary out for reserve hotadd */ +static void __init account_node_boundary(unsigned int nid, + unsigned long *start_pfn, unsigned long *end_pfn) +{ + printk(KERN_DEBUG "Entering account_node_boundary(%u, %lu, %lu)\n", + nid, *start_pfn, *end_pfn); + + /* Return if boundary information has not been provided */ + if (node_boundary_end_pfn[nid] == 0) + return; + + /* Check the boundaries and update if necessary */ + if (node_boundary_start_pfn[nid] < *start_pfn) + *start_pfn = node_boundary_start_pfn[nid]; + if (node_boundary_end_pfn[nid] > *end_pfn) + *end_pfn = node_boundary_end_pfn[nid]; +} +#else +void __init push_node_boundaries(unsigned int nid, + unsigned long start_pfn, unsigned long end_pfn) {} + +static void __init account_node_boundary(unsigned int nid, + unsigned long *start_pfn, unsigned long *end_pfn) {} +#endif + + +/** + * get_pfn_range_for_nid - Return the start and end page frames for a node + * @nid: The nid to return the range for. If MAX_NUMNODES, the min and max PFN are returned + * @start_pfn: Passed by reference. On return, it will have the node start_pfn + * @end_pfn: Passed by reference. On return, it will have the node end_pfn + * + * It returns the start and end page frame of a node based on information + * provided by an arch calling add_active_range(). If called for a node + * with no available memory, a warning is printed and the start and end + * PFNs will be 0 + */ +void __init get_pfn_range_for_nid(unsigned int nid, + unsigned long *start_pfn, unsigned long *end_pfn) +{ + int i; + *start_pfn = -1UL; + *end_pfn = 0; + + for_each_active_range_index_in_nid(i, nid) { + *start_pfn = min(*start_pfn, early_node_map[i].start_pfn); + *end_pfn = max(*end_pfn, early_node_map[i].end_pfn); + } + + if (*start_pfn == -1UL) { + printk(KERN_WARNING "Node %u active with no memory\n", nid); + *start_pfn = 0; + } + + /* Push the node boundaries out if requested */ + account_node_boundary(nid, start_pfn, end_pfn); +} + +/* + * Return the number of pages a zone spans in a node, including holes + * present_pages = zone_spanned_pages_in_node() - zone_absent_pages_in_node() + */ +unsigned long __init zone_spanned_pages_in_node(int nid, + unsigned long zone_type, + unsigned long *ignored) +{ + unsigned long node_start_pfn, node_end_pfn; + unsigned long zone_start_pfn, zone_end_pfn; + + /* Get the start and end of the node and zone */ + get_pfn_range_for_nid(nid, &node_start_pfn, &node_end_pfn); + zone_start_pfn = arch_zone_lowest_possible_pfn[zone_type]; + zone_end_pfn = arch_zone_highest_possible_pfn[zone_type]; + + /* Check that this node has pages within the zone's required range */ + if (zone_end_pfn < node_start_pfn || zone_start_pfn > node_end_pfn) + return 0; + + /* Move the zone boundaries inside the node if necessary */ + zone_end_pfn = min(zone_end_pfn, node_end_pfn); + zone_start_pfn = max(zone_start_pfn, node_start_pfn); + + /* Return the spanned pages */ + return zone_end_pfn - zone_start_pfn; +} + +/* + * Return the number of holes in a range on a node. If nid is MAX_NUMNODES, + * then all holes in the requested range will be accounted for + */ +unsigned long __init __absent_pages_in_range(int nid, + unsigned long range_start_pfn, + unsigned long range_end_pfn) +{ + int i = 0; + unsigned long prev_end_pfn = 0, hole_pages = 0; + unsigned long start_pfn; + + /* Find the end_pfn of the first active range of pfns in the node */ + i = first_active_region_index_in_nid(nid); + if (i == -1) + return 0; + + /* Account for ranges before physical memory on this node */ + if (early_node_map[i].start_pfn > range_start_pfn) + hole_pages = early_node_map[i].start_pfn - range_start_pfn; + + prev_end_pfn = early_node_map[i].start_pfn; + + /* Find all holes for the zone within the node */ + for (; i != -1; i = next_active_region_index_in_nid(i, nid)) { + + /* No need to continue if prev_end_pfn is outside the zone */ + if (prev_end_pfn >= range_end_pfn) + break; + + /* Make sure the end of the zone is not within the hole */ + start_pfn = min(early_node_map[i].start_pfn, range_end_pfn); + prev_end_pfn = max(prev_end_pfn, range_start_pfn); + + /* Update the hole size cound and move on */ + if (start_pfn > range_start_pfn) { + BUG_ON(prev_end_pfn > start_pfn); + hole_pages += start_pfn - prev_end_pfn; + } + prev_end_pfn = early_node_map[i].end_pfn; + } + + /* Account for ranges past physical memory on this node */ + if (range_end_pfn > prev_end_pfn) + hole_pages = range_end_pfn - + max(range_start_pfn, prev_end_pfn); + + return hole_pages; +} + +/** + * absent_pages_in_range - Return number of page frames in holes within a range + * @start_pfn: The start PFN to start searching for holes + * @end_pfn: The end PFN to stop searching for holes + * + * It returns the number of pages frames in memory holes within a range + */ +unsigned long __init absent_pages_in_range(unsigned long start_pfn, + unsigned long end_pfn) +{ + return __absent_pages_in_range(MAX_NUMNODES, start_pfn, end_pfn); +} + +/* Return the number of page frames in holes in a zone on a node */ +unsigned long __init zone_absent_pages_in_node(int nid, + unsigned long zone_type, + unsigned long *ignored) +{ + unsigned long node_start_pfn, node_end_pfn; + unsigned long zone_start_pfn, zone_end_pfn; + + get_pfn_range_for_nid(nid, &node_start_pfn, &node_end_pfn); + zone_start_pfn = max(arch_zone_lowest_possible_pfn[zone_type], + node_start_pfn); + zone_end_pfn = min(arch_zone_highest_possible_pfn[zone_type], + node_end_pfn); + + return __absent_pages_in_range(nid, zone_start_pfn, zone_end_pfn); +} + +/* Return the zone index a PFN is in */ +int memmap_zone_idx(struct page *lmem_map) +{ + int i; + unsigned long phys_addr = virt_to_phys(lmem_map); + unsigned long pfn = phys_addr >> PAGE_SHIFT; + + for (i = 0; i < MAX_NR_ZONES; i++) + if (pfn < arch_zone_highest_possible_pfn[i]) + break; + + return i; +} +#else +static inline unsigned long zone_spanned_pages_in_node(int nid, + unsigned long zone_type, + unsigned long *zones_size) +{ + return zones_size[zone_type]; +} + +static inline unsigned long zone_absent_pages_in_node(int nid, + unsigned long zone_type, + unsigned long *zholes_size) +{ + if (!zholes_size) + return 0; + + return zholes_size[zone_type]; +} + +static inline int memmap_zone_idx(struct page *lmem_map) +{ + return MAX_NR_ZONES; +} +#endif + +static void __init calculate_node_totalpages(struct pglist_data *pgdat, + unsigned long *zones_size, unsigned long *zholes_size) +{ + unsigned long realtotalpages, totalpages = 0; + enum zone_type i; + + for (i = 0; i < MAX_NR_ZONES; i++) + totalpages += zone_spanned_pages_in_node(pgdat->node_id, i, + zones_size); + pgdat->node_spanned_pages = totalpages; + + realtotalpages = totalpages; + for (i = 0; i < MAX_NR_ZONES; i++) + realtotalpages -= + zone_absent_pages_in_node(pgdat->node_id, i, + zholes_size); + pgdat->node_present_pages = realtotalpages; + printk(KERN_DEBUG "On node %d totalpages: %lu\n", pgdat->node_id, + realtotalpages); +} + /* * Set up the zone data structures: * - mark all pages reserved @@ -1981,7 +2360,7 @@ static void __meminit free_area_init_core(struct pglist_data *pgdat, unsigned long *zones_size, unsigned long *zholes_size) { - unsigned long j; + enum zone_type j; int nid = pgdat->node_id; unsigned long zone_start_pfn = pgdat->node_start_pfn; int ret; @@ -1993,21 +2372,46 @@ for (j = 0; j < MAX_NR_ZONES; j++) { struct zone *zone = pgdat->node_zones + j; - unsigned long size, realsize; + unsigned long size, realsize, memmap_pages; - realsize = size = zones_size[j]; - if (zholes_size) - realsize -= zholes_size[j]; + size = zone_spanned_pages_in_node(nid, j, zones_size); + realsize = size - zone_absent_pages_in_node(nid, j, + zholes_size); - if (j < ZONE_HIGHMEM) + /* + * Adjust realsize so that it accounts for how much memory + * is used by this zone for memmap. This affects the watermark + * and per-cpu initialisations + */ + memmap_pages = (size * sizeof(struct page)) >> PAGE_SHIFT; + if (realsize >= memmap_pages) { + realsize -= memmap_pages; + printk(KERN_DEBUG + " %s zone: %lu pages used for memmap\n", + zone_names[j], memmap_pages); + } else + printk(KERN_WARNING + " %s zone: %lu pages exceeds realsize %lu\n", + zone_names[j], memmap_pages, realsize); + + /* Account for reserved DMA pages */ + if (j == ZONE_DMA && realsize > dma_reserve) { + realsize -= dma_reserve; + printk(KERN_DEBUG " DMA zone: %lu pages reserved\n", + dma_reserve); + } + + if (!is_highmem_idx(j)) nr_kernel_pages += realsize; nr_all_pages += realsize; zone->spanned_pages = size; zone->present_pages = realsize; #ifdef CONFIG_NUMA - zone->min_unmapped_ratio = (realsize*sysctl_min_unmapped_ratio) + zone->node = nid; + zone->min_unmapped_pages = (realsize*sysctl_min_unmapped_ratio) / 100; + zone->min_slab_pages = (realsize * sysctl_min_slab_ratio) / 100; #endif zone->name = zone_names[j]; spin_lock_init(&zone->lock); @@ -2067,8 +2471,13 @@ /* * With no DISCONTIG, the global mem_map is just set as node 0's */ - if (pgdat == NODE_DATA(0)) + if (pgdat == NODE_DATA(0)) { mem_map = NODE_DATA(0)->node_mem_map; +#ifdef CONFIG_ARCH_POPULATES_NODE_MAP + if (page_to_pfn(mem_map) != pgdat->node_start_pfn) + mem_map -= pgdat->node_start_pfn; +#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ + } #endif #endif /* CONFIG_FLAT_NODE_MEM_MAP */ } @@ -2079,13 +2488,255 @@ { pgdat->node_id = nid; pgdat->node_start_pfn = node_start_pfn; - calculate_zone_totalpages(pgdat, zones_size, zholes_size); + calculate_node_totalpages(pgdat, zones_size, zholes_size); alloc_node_mem_map(pgdat); free_area_init_core(pgdat, zones_size, zholes_size); } +#ifdef CONFIG_ARCH_POPULATES_NODE_MAP +/** + * add_active_range - Register a range of PFNs backed by physical memory + * @nid: The node ID the range resides on + * @start_pfn: The start PFN of the available physical memory + * @end_pfn: The end PFN of the available physical memory + * + * These ranges are stored in an early_node_map[] and later used by + * free_area_init_nodes() to calculate zone sizes and holes. If the + * range spans a memory hole, it is up to the architecture to ensure + * the memory is not freed by the bootmem allocator. If possible + * the range being registered will be merged with existing ranges. + */ +void __init add_active_range(unsigned int nid, unsigned long start_pfn, + unsigned long end_pfn) +{ + int i; + + printk(KERN_DEBUG "Entering add_active_range(%d, %lu, %lu) " + "%d entries of %d used\n", + nid, start_pfn, end_pfn, + nr_nodemap_entries, MAX_ACTIVE_REGIONS); + + /* Merge with existing active regions if possible */ + for (i = 0; i < nr_nodemap_entries; i++) { + if (early_node_map[i].nid != nid) + continue; + + /* Skip if an existing region covers this new one */ + if (start_pfn >= early_node_map[i].start_pfn && + end_pfn <= early_node_map[i].end_pfn) + return; + + /* Merge forward if suitable */ + if (start_pfn <= early_node_map[i].end_pfn && + end_pfn > early_node_map[i].end_pfn) { + early_node_map[i].end_pfn = end_pfn; + return; + } + + /* Merge backward if suitable */ + if (start_pfn < early_node_map[i].end_pfn && + end_pfn >= early_node_map[i].start_pfn) { + early_node_map[i].start_pfn = start_pfn; + return; + } + } + + /* Check that early_node_map is large enough */ + if (i >= MAX_ACTIVE_REGIONS) { + printk(KERN_CRIT "More than %d memory regions, truncating\n", + MAX_ACTIVE_REGIONS); + return; + } + + early_node_map[i].nid = nid; + early_node_map[i].start_pfn = start_pfn; + early_node_map[i].end_pfn = end_pfn; + nr_nodemap_entries = i + 1; +} + +/** + * shrink_active_range - Shrink an existing registered range of PFNs + * @nid: The node id the range is on that should be shrunk + * @old_end_pfn: The old end PFN of the range + * @new_end_pfn: The new PFN of the range + * + * i386 with NUMA use alloc_remap() to store a node_mem_map on a local node. + * The map is kept at the end physical page range that has already been + * registered with add_active_range(). This function allows an arch to shrink + * an existing registered range. + */ +void __init shrink_active_range(unsigned int nid, unsigned long old_end_pfn, + unsigned long new_end_pfn) +{ + int i; + + /* Find the old active region end and shrink */ + for_each_active_range_index_in_nid(i, nid) + if (early_node_map[i].end_pfn == old_end_pfn) { + early_node_map[i].end_pfn = new_end_pfn; + break; + } +} + +/** + * remove_all_active_ranges - Remove all currently registered regions + * During discovery, it may be found that a table like SRAT is invalid + * and an alternative discovery method must be used. This function removes + * all currently registered regions. + */ +void __init remove_all_active_ranges() +{ + memset(early_node_map, 0, sizeof(early_node_map)); + nr_nodemap_entries = 0; +#ifdef CONFIG_MEMORY_HOTPLUG_RESERVE + memset(node_boundary_start_pfn, 0, sizeof(node_boundary_start_pfn)); + memset(node_boundary_end_pfn, 0, sizeof(node_boundary_end_pfn)); +#endif /* CONFIG_MEMORY_HOTPLUG_RESERVE */ +} + +/* Compare two active node_active_regions */ +static int __init cmp_node_active_region(const void *a, const void *b) +{ + struct node_active_region *arange = (struct node_active_region *)a; + struct node_active_region *brange = (struct node_active_region *)b; + + /* Done this way to avoid overflows */ + if (arange->start_pfn > brange->start_pfn) + return 1; + if (arange->start_pfn < brange->start_pfn) + return -1; + + return 0; +} + +/* sort the node_map by start_pfn */ +static void __init sort_node_map(void) +{ + sort(early_node_map, (size_t)nr_nodemap_entries, + sizeof(struct node_active_region), + cmp_node_active_region, NULL); +} + +/* Find the lowest pfn for a node. This depends on a sorted early_node_map */ +unsigned long __init find_min_pfn_for_node(unsigned long nid) +{ + int i; + + /* Assuming a sorted map, the first range found has the starting pfn */ + for_each_active_range_index_in_nid(i, nid) + return early_node_map[i].start_pfn; + + printk(KERN_WARNING "Could not find start_pfn for node %lu\n", nid); + return 0; +} + +/** + * find_min_pfn_with_active_regions - Find the minimum PFN registered + * + * It returns the minimum PFN based on information provided via + * add_active_range() + */ +unsigned long __init find_min_pfn_with_active_regions(void) +{ + return find_min_pfn_for_node(MAX_NUMNODES); +} + +/** + * find_max_pfn_with_active_regions - Find the maximum PFN registered + * + * It returns the maximum PFN based on information provided via + * add_active_range() + */ +unsigned long __init find_max_pfn_with_active_regions(void) +{ + int i; + unsigned long max_pfn = 0; + + for (i = 0; i < nr_nodemap_entries; i++) + max_pfn = max(max_pfn, early_node_map[i].end_pfn); + + return max_pfn; +} + +/** + * free_area_init_nodes - Initialise all pg_data_t and zone data + * @arch_max_dma_pfn: The maximum PFN usable for ZONE_DMA + * @arch_max_dma32_pfn: The maximum PFN usable for ZONE_DMA32 + * @arch_max_low_pfn: The maximum PFN usable for ZONE_NORMAL + * @arch_max_high_pfn: The maximum PFN usable for ZONE_HIGHMEM + * + * This will call free_area_init_node() for each active node in the system. + * Using the page ranges provided by add_active_range(), the size of each + * zone in each node and their holes is calculated. If the maximum PFN + * between two adjacent zones match, it is assumed that the zone is empty. + * For example, if arch_max_dma_pfn == arch_max_dma32_pfn, it is assumed + * that arch_max_dma32_pfn has no pages. It is also assumed that a zone + * starts where the previous one ended. For example, ZONE_DMA32 starts + * at arch_max_dma_pfn. + */ +void __init free_area_init_nodes(unsigned long *max_zone_pfn) +{ + unsigned long nid; + enum zone_type i; + + /* Record where the zone boundaries are */ + memset(arch_zone_lowest_possible_pfn, 0, + sizeof(arch_zone_lowest_possible_pfn)); + memset(arch_zone_highest_possible_pfn, 0, + sizeof(arch_zone_highest_possible_pfn)); + arch_zone_lowest_possible_pfn[0] = find_min_pfn_with_active_regions(); + arch_zone_highest_possible_pfn[0] = max_zone_pfn[0]; + for (i = 1; i < MAX_NR_ZONES; i++) { + arch_zone_lowest_possible_pfn[i] = + arch_zone_highest_possible_pfn[i-1]; + arch_zone_highest_possible_pfn[i] = + max(max_zone_pfn[i], arch_zone_lowest_possible_pfn[i]); + } + + /* Regions in the early_node_map can be in any order */ + sort_node_map(); + + /* Print out the zone ranges */ + printk("Zone PFN ranges:\n"); + for (i = 0; i < MAX_NR_ZONES; i++) + printk(" %-8s %8lu -> %8lu\n", + zone_names[i], + arch_zone_lowest_possible_pfn[i], + arch_zone_highest_possible_pfn[i]); + + /* Print out the early_node_map[] */ + printk("early_node_map[%d] active PFN ranges\n", nr_nodemap_entries); + for (i = 0; i < nr_nodemap_entries; i++) + printk(" %3d: %8lu -> %8lu\n", early_node_map[i].nid, + early_node_map[i].start_pfn, + early_node_map[i].end_pfn); + + /* Initialise every node */ + for_each_online_node(nid) { + pg_data_t *pgdat = NODE_DATA(nid); + free_area_init_node(nid, pgdat, NULL, + find_min_pfn_for_node(nid), NULL); + } +} +#endif /* CONFIG_ARCH_POPULATES_NODE_MAP */ + +/** + * set_dma_reserve - Account the specified number of pages reserved in ZONE_DMA + * @new_dma_reserve - The number of pages to mark reserved + * + * The per-cpu batchsize and zone watermarks are determined by present_pages. + * In the DMA zone, a significant percentage may be consumed by kernel image + * and other unfreeable allocations which can skew the watermarks badly. This + * function may optionally be used to account for unfreeable pages in + * ZONE_DMA. The effect will be lower watermarks and smaller per-cpu batchsize + */ +void __init set_dma_reserve(unsigned long new_dma_reserve) +{ + dma_reserve = new_dma_reserve; +} + #ifndef CONFIG_NEED_MULTIPLE_NODES static bootmem_data_t contig_bootmem_data; struct pglist_data contig_page_data = { .bdata = &contig_bootmem_data }; @@ -2129,7 +2780,7 @@ { struct pglist_data *pgdat; unsigned long reserve_pages = 0; - int i, j; + enum zone_type i, j; for_each_online_pgdat(pgdat) { for (i = 0; i < MAX_NR_ZONES; i++) { @@ -2162,7 +2813,7 @@ static void setup_per_zone_lowmem_reserve(void) { struct pglist_data *pgdat; - int j, idx; + enum zone_type j, idx; for_each_online_pgdat(pgdat) { for (j = 0; j < MAX_NR_ZONES; j++) { @@ -2171,9 +2822,12 @@ zone->lowmem_reserve[j] = 0; - for (idx = j-1; idx >= 0; idx--) { + idx = j; + while (idx) { struct zone *lower_zone; + idx--; + if (sysctl_lowmem_reserve_ratio[idx] < 1) sysctl_lowmem_reserve_ratio[idx] = 1; @@ -2314,10 +2968,26 @@ return rc; for_each_zone(zone) - zone->min_unmapped_ratio = (zone->present_pages * + zone->min_unmapped_pages = (zone->present_pages * sysctl_min_unmapped_ratio) / 100; return 0; } + +int sysctl_min_slab_ratio_sysctl_handler(ctl_table *table, int write, + struct file *file, void __user *buffer, size_t *length, loff_t *ppos) +{ + struct zone *zone; + int rc; + + rc = proc_dointvec_minmax(table, write, file, buffer, length, ppos); + if (rc) + return rc; + + for_each_zone(zone) + zone->min_slab_pages = (zone->present_pages * + sysctl_min_slab_ratio) / 100; + return 0; +} #endif /*
diff --git a/mm/page_io.c b/mm/page_io.c index 8802994..d4840ec 100644 --- a/mm/page_io.c +++ b/mm/page_io.c
@@ -52,14 +52,29 @@ if (bio->bi_size) return 1; - if (!uptodate) + if (!uptodate) { SetPageError(page); + /* + * We failed to write the page out to swap-space. + * Re-dirty the page in order to avoid it being reclaimed. + * Also print a dire warning that things will go BAD (tm) + * very quickly. + * + * Also clear PG_reclaim to avoid rotate_reclaimable_page() + */ + set_page_dirty(page); + printk(KERN_ALERT "Write-error on swap-device (%u:%u:%Lu)\n", + imajor(bio->bi_bdev->bd_inode), + iminor(bio->bi_bdev->bd_inode), + (unsigned long long)bio->bi_sector); + ClearPageReclaim(page); + } end_page_writeback(page); bio_put(bio); return 0; } -static int end_swap_bio_read(struct bio *bio, unsigned int bytes_done, int err) +int end_swap_bio_read(struct bio *bio, unsigned int bytes_done, int err) { const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags); struct page *page = bio->bi_io_vec[0].bv_page; @@ -70,6 +85,10 @@ if (!uptodate) { SetPageError(page); ClearPageUptodate(page); + printk(KERN_ALERT "Read-error on swap-device (%u:%u:%Lu)\n", + imajor(bio->bi_bdev->bd_inode), + iminor(bio->bi_bdev->bd_inode), + (unsigned long long)bio->bi_sector); } else { SetPageUptodate(page); } @@ -137,10 +156,12 @@ * We use end_swap_bio_read() even for writes, because it happens to do what * we want. */ -int rw_swap_page_sync(int rw, swp_entry_t entry, struct page *page) +int rw_swap_page_sync(int rw, swp_entry_t entry, struct page *page, + struct bio **bio_chain) { struct bio *bio; int ret = 0; + int bio_rw; lock_page(page); @@ -151,11 +172,22 @@ goto out; } - submit_bio(rw | (1 << BIO_RW_SYNC), bio); - wait_on_page_locked(page); + bio_rw = rw; + if (!bio_chain) + bio_rw |= (1 << BIO_RW_SYNC); + if (bio_chain) + bio_get(bio); + submit_bio(bio_rw, bio); + if (bio_chain == NULL) { + wait_on_page_locked(page); - if (!PageUptodate(page) || PageError(page)) - ret = -EIO; + if (!PageUptodate(page) || PageError(page)) + ret = -EIO; + } + if (bio_chain) { + bio->bi_private = *bio_chain; + *bio_chain = bio; + } out: return ret; }
diff --git a/mm/rmap.c b/mm/rmap.c index 40158b5..e2155d7 100644 --- a/mm/rmap.c +++ b/mm/rmap.c
@@ -434,6 +434,71 @@ return referenced; } +static int page_mkclean_one(struct page *page, struct vm_area_struct *vma) +{ + struct mm_struct *mm = vma->vm_mm; + unsigned long address; + pte_t *pte, entry; + spinlock_t *ptl; + int ret = 0; + + address = vma_address(page, vma); + if (address == -EFAULT) + goto out; + + pte = page_check_address(page, mm, address, &ptl); + if (!pte) + goto out; + + if (!pte_dirty(*pte) && !pte_write(*pte)) + goto unlock; + + entry = ptep_get_and_clear(mm, address, pte); + entry = pte_mkclean(entry); + entry = pte_wrprotect(entry); + ptep_establish(vma, address, pte, entry); + lazy_mmu_prot_update(entry); + ret = 1; + +unlock: + pte_unmap_unlock(pte, ptl); +out: + return ret; +} + +static int page_mkclean_file(struct address_space *mapping, struct page *page) +{ + pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT); + struct vm_area_struct *vma; + struct prio_tree_iter iter; + int ret = 0; + + BUG_ON(PageAnon(page)); + + spin_lock(&mapping->i_mmap_lock); + vma_prio_tree_foreach(vma, &iter, &mapping->i_mmap, pgoff, pgoff) { + if (vma->vm_flags & VM_SHARED) + ret += page_mkclean_one(page, vma); + } + spin_unlock(&mapping->i_mmap_lock); + return ret; +} + +int page_mkclean(struct page *page) +{ + int ret = 0; + + BUG_ON(!PageLocked(page)); + + if (page_mapped(page)) { + struct address_space *mapping = page_mapping(page); + if (mapping) + ret = page_mkclean_file(mapping, page); + } + + return ret; +} + /** * page_set_anon_rmap - setup new anonymous rmap * @page: the page to add the mapping to
diff --git a/mm/shmem.c b/mm/shmem.c index db21c51..eda907c 100644 --- a/mm/shmem.c +++ b/mm/shmem.c
@@ -45,6 +45,7 @@ #include <linux/namei.h> #include <linux/ctype.h> #include <linux/migrate.h> +#include <linux/highmem.h> #include <asm/uaccess.h> #include <asm/div64.h> @@ -1350,7 +1351,6 @@ inode->i_mode = mode; inode->i_uid = current->fsuid; inode->i_gid = current->fsgid; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_mapping->a_ops = &shmem_aops; inode->i_mapping->backing_dev_info = &shmem_backing_dev_info; @@ -2156,8 +2156,7 @@ static void destroy_inodecache(void) { - if (kmem_cache_destroy(shmem_inode_cachep)) - printk(KERN_INFO "shmem_inode_cache: not all structures were freed\n"); + kmem_cache_destroy(shmem_inode_cachep); } static const struct address_space_operations shmem_aops = {
diff --git a/mm/slab.c b/mm/slab.c index 21ba060..792bfe3 100644 --- a/mm/slab.c +++ b/mm/slab.c
@@ -313,7 +313,7 @@ struct kmem_list3 *l3, int tofree); static void free_block(struct kmem_cache *cachep, void **objpp, int len, int node); -static void enable_cpucache(struct kmem_cache *cachep); +static int enable_cpucache(struct kmem_cache *cachep); static void cache_reap(void *unused); /* @@ -674,6 +674,8 @@ #endif }; +#define BAD_ALIEN_MAGIC 0x01020304ul + #ifdef CONFIG_LOCKDEP /* @@ -682,42 +684,58 @@ * The locking for this is tricky in that it nests within the locks * of all other slabs in a few places; to deal with this special * locking we put on-slab caches into a separate lock-class. + * + * We set lock class for alien array caches which are up during init. + * The lock annotation will be lost if all cpus of a node goes down and + * then comes back up during hotplug */ -static struct lock_class_key on_slab_key; +static struct lock_class_key on_slab_l3_key; +static struct lock_class_key on_slab_alc_key; -static inline void init_lock_keys(struct cache_sizes *s) +static inline void init_lock_keys(void) + { int q; + struct cache_sizes *s = malloc_sizes; - for (q = 0; q < MAX_NUMNODES; q++) { - if (!s->cs_cachep->nodelists[q] || OFF_SLAB(s->cs_cachep)) - continue; - lockdep_set_class(&s->cs_cachep->nodelists[q]->list_lock, - &on_slab_key); + while (s->cs_size != ULONG_MAX) { + for_each_node(q) { + struct array_cache **alc; + int r; + struct kmem_list3 *l3 = s->cs_cachep->nodelists[q]; + if (!l3 || OFF_SLAB(s->cs_cachep)) + continue; + lockdep_set_class(&l3->list_lock, &on_slab_l3_key); + alc = l3->alien; + /* + * FIXME: This check for BAD_ALIEN_MAGIC + * should go away when common slab code is taught to + * work even without alien caches. + * Currently, non NUMA code returns BAD_ALIEN_MAGIC + * for alloc_alien_cache, + */ + if (!alc || (unsigned long)alc == BAD_ALIEN_MAGIC) + continue; + for_each_node(r) { + if (alc[r]) + lockdep_set_class(&alc[r]->lock, + &on_slab_alc_key); + } + } + s++; } } - #else -static inline void init_lock_keys(struct cache_sizes *s) +static inline void init_lock_keys(void) { } #endif - - /* Guard access to the cache-chain. */ static DEFINE_MUTEX(cache_chain_mutex); static struct list_head cache_chain; /* - * vm_enough_memory() looks at this to determine how many slab-allocated pages - * are possibly freeable under pressure - * - * SLAB_RECLAIM_ACCOUNT turns this on per-slab - */ -atomic_t slab_reclaim_pages; - -/* * chicken and egg problem: delay the per-cpu array allocation * until the general caches are up. */ @@ -768,11 +786,10 @@ return csizep->cs_cachep; } -struct kmem_cache *kmem_find_general_cachep(size_t size, gfp_t gfpflags) +static struct kmem_cache *kmem_find_general_cachep(size_t size, gfp_t gfpflags) { return __find_general_cachep(size, gfpflags); } -EXPORT_SYMBOL(kmem_find_general_cachep); static size_t slab_mgmt_size(size_t nr_objs, size_t align) { @@ -955,7 +972,39 @@ return nr; } -#ifdef CONFIG_NUMA +#ifndef CONFIG_NUMA + +#define drain_alien_cache(cachep, alien) do { } while (0) +#define reap_alien(cachep, l3) do { } while (0) + +static inline struct array_cache **alloc_alien_cache(int node, int limit) +{ + return (struct array_cache **)BAD_ALIEN_MAGIC; +} + +static inline void free_alien_cache(struct array_cache **ac_ptr) +{ +} + +static inline int cache_free_alien(struct kmem_cache *cachep, void *objp) +{ + return 0; +} + +static inline void *alternate_node_alloc(struct kmem_cache *cachep, + gfp_t flags) +{ + return NULL; +} + +static inline void *__cache_alloc_node(struct kmem_cache *cachep, + gfp_t flags, int nodeid) +{ + return NULL; +} + +#else /* CONFIG_NUMA */ + static void *__cache_alloc_node(struct kmem_cache *, gfp_t, int); static void *alternate_node_alloc(struct kmem_cache *, gfp_t); @@ -1084,26 +1133,6 @@ } return 1; } - -#else - -#define drain_alien_cache(cachep, alien) do { } while (0) -#define reap_alien(cachep, l3) do { } while (0) - -static inline struct array_cache **alloc_alien_cache(int node, int limit) -{ - return (struct array_cache **) 0x01020304ul; -} - -static inline void free_alien_cache(struct array_cache **ac_ptr) -{ -} - -static inline int cache_free_alien(struct kmem_cache *cachep, void *objp) -{ - return 0; -} - #endif static int __cpuinit cpuup_callback(struct notifier_block *nfb, @@ -1422,7 +1451,6 @@ ARCH_KMALLOC_FLAGS|SLAB_PANIC, NULL, NULL); } - init_lock_keys(sizes); sizes->cs_dmacachep = kmem_cache_create(names->name_dma, sizes->cs_size, @@ -1491,10 +1519,15 @@ struct kmem_cache *cachep; mutex_lock(&cache_chain_mutex); list_for_each_entry(cachep, &cache_chain, next) - enable_cpucache(cachep); + if (enable_cpucache(cachep)) + BUG(); mutex_unlock(&cache_chain_mutex); } + /* Annotate slab for lockdep -- annotate the malloc caches */ + init_lock_keys(); + + /* Done! */ g_cpucache_up = FULL; @@ -1543,7 +1576,13 @@ */ flags |= __GFP_COMP; #endif - flags |= cachep->gfpflags; + + /* + * Under NUMA we want memory on the indicated node. We will handle + * the needed fallback ourselves since we want to serve from our + * per node object lists first for other nodes. + */ + flags |= cachep->gfpflags | GFP_THISNODE; page = alloc_pages_node(nodeid, flags, cachep->gfporder); if (!page) @@ -1551,8 +1590,11 @@ nr_pages = (1 << cachep->gfporder); if (cachep->flags & SLAB_RECLAIM_ACCOUNT) - atomic_add(nr_pages, &slab_reclaim_pages); - add_zone_page_state(page_zone(page), NR_SLAB, nr_pages); + add_zone_page_state(page_zone(page), + NR_SLAB_RECLAIMABLE, nr_pages); + else + add_zone_page_state(page_zone(page), + NR_SLAB_UNRECLAIMABLE, nr_pages); for (i = 0; i < nr_pages; i++) __SetPageSlab(page + i); return page_address(page); @@ -1567,7 +1609,12 @@ struct page *page = virt_to_page(addr); const unsigned long nr_freed = i; - sub_zone_page_state(page_zone(page), NR_SLAB, nr_freed); + if (cachep->flags & SLAB_RECLAIM_ACCOUNT) + sub_zone_page_state(page_zone(page), + NR_SLAB_RECLAIMABLE, nr_freed); + else + sub_zone_page_state(page_zone(page), + NR_SLAB_UNRECLAIMABLE, nr_freed); while (i--) { BUG_ON(!PageSlab(page)); __ClearPageSlab(page); @@ -1576,8 +1623,6 @@ if (current->reclaim_state) current->reclaim_state->reclaimed_slab += nr_freed; free_pages((unsigned long)addr, cachep->gfporder); - if (cachep->flags & SLAB_RECLAIM_ACCOUNT) - atomic_sub(1 << cachep->gfporder, &slab_reclaim_pages); } static void kmem_rcu_free(struct rcu_head *head) @@ -1834,6 +1879,27 @@ } } +static void __kmem_cache_destroy(struct kmem_cache *cachep) +{ + int i; + struct kmem_list3 *l3; + + for_each_online_cpu(i) + kfree(cachep->array[i]); + + /* NUMA: free the list3 structures */ + for_each_online_node(i) { + l3 = cachep->nodelists[i]; + if (l3) { + kfree(l3->shared); + free_alien_cache(l3->alien); + kfree(l3); + } + } + kmem_cache_free(&cache_cache, cachep); +} + + /** * calculate_slab_order - calculate size (page order) of slabs * @cachep: pointer to the cache that is being created @@ -1904,12 +1970,11 @@ return left_over; } -static void setup_cpu_cache(struct kmem_cache *cachep) +static int setup_cpu_cache(struct kmem_cache *cachep) { - if (g_cpucache_up == FULL) { - enable_cpucache(cachep); - return; - } + if (g_cpucache_up == FULL) + return enable_cpucache(cachep); + if (g_cpucache_up == NONE) { /* * Note: the first kmem_cache_create must create the cache @@ -1956,6 +2021,7 @@ cpu_cache_get(cachep)->touched = 0; cachep->batchcount = 1; cachep->limit = BOOT_CPUCACHE_ENTRIES; + return 0; } /** @@ -2097,6 +2163,15 @@ } else { ralign = BYTES_PER_WORD; } + + /* + * Redzoning and user store require word alignment. Note this will be + * overridden by architecture or caller mandated alignment if either + * is greater than BYTES_PER_WORD. + */ + if (flags & SLAB_RED_ZONE || flags & SLAB_STORE_USER) + ralign = BYTES_PER_WORD; + /* 2) arch mandated alignment: disables debug if necessary */ if (ralign < ARCH_SLAB_MINALIGN) { ralign = ARCH_SLAB_MINALIGN; @@ -2110,8 +2185,7 @@ flags &= ~(SLAB_RED_ZONE | SLAB_STORE_USER); } /* - * 4) Store it. Note that the debug code below can reduce - * the alignment to BYTES_PER_WORD. + * 4) Store it. */ align = ralign; @@ -2123,20 +2197,19 @@ #if DEBUG cachep->obj_size = size; + /* + * Both debugging options require word-alignment which is calculated + * into align above. + */ if (flags & SLAB_RED_ZONE) { - /* redzoning only works with word aligned caches */ - align = BYTES_PER_WORD; - /* add space for red zone words */ cachep->obj_offset += BYTES_PER_WORD; size += 2 * BYTES_PER_WORD; } if (flags & SLAB_STORE_USER) { - /* user store requires word alignment and - * one word storage behind the end of the real - * object. + /* user store requires one word storage behind the end of + * the real object. */ - align = BYTES_PER_WORD; size += BYTES_PER_WORD; } #if FORCED_DEBUG && defined(CONFIG_DEBUG_PAGEALLOC) @@ -2200,14 +2273,26 @@ cachep->gfpflags |= GFP_DMA; cachep->buffer_size = size; - if (flags & CFLGS_OFF_SLAB) + if (flags & CFLGS_OFF_SLAB) { cachep->slabp_cache = kmem_find_general_cachep(slab_size, 0u); + /* + * This is a possibility for one of the malloc_sizes caches. + * But since we go off slab only for object size greater than + * PAGE_SIZE/8, and malloc_sizes gets created in ascending order, + * this should not happen at all. + * But leave a BUG_ON for some lucky dude. + */ + BUG_ON(!cachep->slabp_cache); + } cachep->ctor = ctor; cachep->dtor = dtor; cachep->name = name; - - setup_cpu_cache(cachep); + if (setup_cpu_cache(cachep)) { + __kmem_cache_destroy(cachep); + cachep = NULL; + goto oops; + } /* cache setup completed, link it into the list */ list_add(&cachep->next, &cache_chain); @@ -2375,7 +2460,6 @@ * @cachep: the cache to destroy * * Remove a struct kmem_cache object from the slab cache. - * Returns 0 on success. * * It is expected this function will be called by a module when it is * unloaded. This will remove the cache completely, and avoid a duplicate @@ -2387,11 +2471,8 @@ * The caller must guarantee that noone will allocate memory from the cache * during the kmem_cache_destroy(). */ -int kmem_cache_destroy(struct kmem_cache *cachep) +void kmem_cache_destroy(struct kmem_cache *cachep) { - int i; - struct kmem_list3 *l3; - BUG_ON(!cachep || in_interrupt()); /* Don't let CPUs to come and go */ @@ -2411,31 +2492,28 @@ list_add(&cachep->next, &cache_chain); mutex_unlock(&cache_chain_mutex); unlock_cpu_hotplug(); - return 1; + return; } if (unlikely(cachep->flags & SLAB_DESTROY_BY_RCU)) synchronize_rcu(); - for_each_online_cpu(i) - kfree(cachep->array[i]); - - /* NUMA: free the list3 structures */ - for_each_online_node(i) { - l3 = cachep->nodelists[i]; - if (l3) { - kfree(l3->shared); - free_alien_cache(l3->alien); - kfree(l3); - } - } - kmem_cache_free(&cache_cache, cachep); + __kmem_cache_destroy(cachep); unlock_cpu_hotplug(); - return 0; } EXPORT_SYMBOL(kmem_cache_destroy); -/* Get the memory for a slab management obj. */ +/* + * Get the memory for a slab management obj. + * For a slab cache when the slab descriptor is off-slab, slab descriptors + * always come from malloc_sizes caches. The slab descriptor cannot + * come from the same cache which is getting created because, + * when we are searching for an appropriate cache for these + * descriptors in kmem_cache_create, we search through the malloc_sizes array. + * If we are creating a malloc_sizes cache here it would not be visible to + * kmem_find_general_cachep till the initialization is complete. + * Hence we cannot have slabp_cache same as the original cache. + */ static struct slab *alloc_slabmgmt(struct kmem_cache *cachep, void *objp, int colour_off, gfp_t local_flags, int nodeid) @@ -2968,14 +3046,6 @@ void *objp; struct array_cache *ac; -#ifdef CONFIG_NUMA - if (unlikely(current->flags & (PF_SPREAD_SLAB | PF_MEMPOLICY))) { - objp = alternate_node_alloc(cachep, flags); - if (objp != NULL) - return objp; - } -#endif - check_irq_off(); ac = cpu_cache_get(cachep); if (likely(ac->avail)) { @@ -2993,12 +3063,24 @@ gfp_t flags, void *caller) { unsigned long save_flags; - void *objp; + void *objp = NULL; cache_alloc_debugcheck_before(cachep, flags); local_irq_save(save_flags); - objp = ____cache_alloc(cachep, flags); + + if (unlikely(NUMA_BUILD && + current->flags & (PF_SPREAD_SLAB | PF_MEMPOLICY))) + objp = alternate_node_alloc(cachep, flags); + + if (!objp) + objp = ____cache_alloc(cachep, flags); + /* + * We may just have run out of memory on the local node. + * __cache_alloc_node() knows how to locate memory on other nodes + */ + if (NUMA_BUILD && !objp) + objp = __cache_alloc_node(cachep, flags, numa_node_id()); local_irq_restore(save_flags); objp = cache_alloc_debugcheck_after(cachep, flags, objp, caller); @@ -3017,7 +3099,7 @@ { int nid_alloc, nid_here; - if (in_interrupt()) + if (in_interrupt() || (flags & __GFP_THISNODE)) return NULL; nid_alloc = nid_here = numa_node_id(); if (cpuset_do_slab_mem_spread() && (cachep->flags & SLAB_MEM_SPREAD)) @@ -3030,6 +3112,28 @@ } /* + * Fallback function if there was no memory available and no objects on a + * certain node and we are allowed to fall back. We mimick the behavior of + * the page allocator. We fall back according to a zonelist determined by + * the policy layer while obeying cpuset constraints. + */ +void *fallback_alloc(struct kmem_cache *cache, gfp_t flags) +{ + struct zonelist *zonelist = &NODE_DATA(slab_node(current->mempolicy)) + ->node_zonelists[gfp_zone(flags)]; + struct zone **z; + void *obj = NULL; + + for (z = zonelist->zones; *z && !obj; z++) + if (zone_idx(*z) <= ZONE_NORMAL && + cpuset_zone_allowed(*z, flags)) + obj = __cache_alloc_node(cache, + flags | __GFP_THISNODE, + zone_to_nid(*z)); + return obj; +} + +/* * A interface to enable slab creation on nodeid */ static void *__cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, @@ -3082,11 +3186,15 @@ must_grow: spin_unlock(&l3->list_lock); x = cache_grow(cachep, flags, nodeid); + if (x) + goto retry; - if (!x) - return NULL; + if (!(flags & __GFP_THISNODE)) + /* Unable to grow the cache. Fall back to other nodes. */ + return fallback_alloc(cachep, flags); - goto retry; + return NULL; + done: return obj; } @@ -3119,6 +3227,12 @@ if (slabp->inuse == 0) { if (l3->free_objects > l3->free_limit) { l3->free_objects -= cachep->num; + /* No need to drop any previously held + * lock here, even if we have a off-slab slab + * descriptor it is guaranteed to come from + * a different cache, refer to comments before + * alloc_slabmgmt. + */ slab_destroy(cachep, slabp); } else { list_add(&slabp->list, &l3->slabs_free); @@ -3317,7 +3431,7 @@ } EXPORT_SYMBOL(kmem_cache_alloc_node); -void *kmalloc_node(size_t size, gfp_t flags, int node) +void *__kmalloc_node(size_t size, gfp_t flags, int node) { struct kmem_cache *cachep; @@ -3326,7 +3440,7 @@ return NULL; return kmem_cache_alloc_node(cachep, flags, node); } -EXPORT_SYMBOL(kmalloc_node); +EXPORT_SYMBOL(__kmalloc_node); #endif /** @@ -3370,55 +3484,6 @@ EXPORT_SYMBOL(__kmalloc_track_caller); #endif -#ifdef CONFIG_SMP -/** - * __alloc_percpu - allocate one copy of the object for every present - * cpu in the system, zeroing them. - * Objects should be dereferenced using the per_cpu_ptr macro only. - * - * @size: how many bytes of memory are required. - */ -void *__alloc_percpu(size_t size) -{ - int i; - struct percpu_data *pdata = kmalloc(sizeof(*pdata), GFP_KERNEL); - - if (!pdata) - return NULL; - - /* - * Cannot use for_each_online_cpu since a cpu may come online - * and we have no way of figuring out how to fix the array - * that we have allocated then.... - */ - for_each_possible_cpu(i) { - int node = cpu_to_node(i); - - if (node_online(node)) - pdata->ptrs[i] = kmalloc_node(size, GFP_KERNEL, node); - else - pdata->ptrs[i] = kmalloc(size, GFP_KERNEL); - - if (!pdata->ptrs[i]) - goto unwind_oom; - memset(pdata->ptrs[i], 0, size); - } - - /* Catch derefs w/o wrappers */ - return (void *)(~(unsigned long)pdata); - -unwind_oom: - while (--i >= 0) { - if (!cpu_possible(i)) - continue; - kfree(pdata->ptrs[i]); - } - kfree(pdata); - return NULL; -} -EXPORT_SYMBOL(__alloc_percpu); -#endif - /** * kmem_cache_free - Deallocate an object * @cachep: The cache the allocation was from. @@ -3464,29 +3529,6 @@ } EXPORT_SYMBOL(kfree); -#ifdef CONFIG_SMP -/** - * free_percpu - free previously allocated percpu memory - * @objp: pointer returned by alloc_percpu. - * - * Don't free memory not originally allocated by alloc_percpu() - * The complemented objp is to check for that. - */ -void free_percpu(const void *objp) -{ - int i; - struct percpu_data *p = (struct percpu_data *)(~(unsigned long)objp); - - /* - * We allocate for all cpus so we cannot use for online cpu here. - */ - for_each_possible_cpu(i) - kfree(p->ptrs[i]); - kfree(p); -} -EXPORT_SYMBOL(free_percpu); -#endif - unsigned int kmem_cache_size(struct kmem_cache *cachep) { return obj_size(cachep); @@ -3603,22 +3645,26 @@ static int do_tune_cpucache(struct kmem_cache *cachep, int limit, int batchcount, int shared) { - struct ccupdate_struct new; - int i, err; + struct ccupdate_struct *new; + int i; - memset(&new.new, 0, sizeof(new.new)); + new = kzalloc(sizeof(*new), GFP_KERNEL); + if (!new) + return -ENOMEM; + for_each_online_cpu(i) { - new.new[i] = alloc_arraycache(cpu_to_node(i), limit, + new->new[i] = alloc_arraycache(cpu_to_node(i), limit, batchcount); - if (!new.new[i]) { + if (!new->new[i]) { for (i--; i >= 0; i--) - kfree(new.new[i]); + kfree(new->new[i]); + kfree(new); return -ENOMEM; } } - new.cachep = cachep; + new->cachep = cachep; - on_each_cpu(do_ccupdate_local, (void *)&new, 1, 1); + on_each_cpu(do_ccupdate_local, (void *)new, 1, 1); check_irq_on(); cachep->batchcount = batchcount; @@ -3626,7 +3672,7 @@ cachep->shared = shared; for_each_online_cpu(i) { - struct array_cache *ccold = new.new[i]; + struct array_cache *ccold = new->new[i]; if (!ccold) continue; spin_lock_irq(&cachep->nodelists[cpu_to_node(i)]->list_lock); @@ -3634,18 +3680,12 @@ spin_unlock_irq(&cachep->nodelists[cpu_to_node(i)]->list_lock); kfree(ccold); } - - err = alloc_kmemlist(cachep); - if (err) { - printk(KERN_ERR "alloc_kmemlist failed for %s, error %d.\n", - cachep->name, -err); - BUG(); - } - return 0; + kfree(new); + return alloc_kmemlist(cachep); } /* Called with cache_chain_mutex held always */ -static void enable_cpucache(struct kmem_cache *cachep) +static int enable_cpucache(struct kmem_cache *cachep) { int err; int limit, shared; @@ -3697,6 +3737,7 @@ if (err) printk(KERN_ERR "enable_cpucache failed for %s, error %d.\n", cachep->name, -err); + return err; } /* @@ -4157,6 +4198,7 @@ show_symbol(m, n[2*i+2]); seq_putc(m, '\n'); } + return 0; }
diff --git a/mm/slob.c b/mm/slob.c index 7b52b20..5423941 100644 --- a/mm/slob.c +++ b/mm/slob.c
@@ -270,10 +270,9 @@ } EXPORT_SYMBOL(kmem_cache_create); -int kmem_cache_destroy(struct kmem_cache *c) +void kmem_cache_destroy(struct kmem_cache *c) { slob_free(c, sizeof(struct kmem_cache)); - return 0; } EXPORT_SYMBOL(kmem_cache_destroy); @@ -339,52 +338,3 @@ mod_timer(&slob_timer, jiffies + HZ); } - -atomic_t slab_reclaim_pages = ATOMIC_INIT(0); -EXPORT_SYMBOL(slab_reclaim_pages); - -#ifdef CONFIG_SMP - -void *__alloc_percpu(size_t size) -{ - int i; - struct percpu_data *pdata = kmalloc(sizeof (*pdata), GFP_KERNEL); - - if (!pdata) - return NULL; - - for_each_possible_cpu(i) { - pdata->ptrs[i] = kmalloc(size, GFP_KERNEL); - if (!pdata->ptrs[i]) - goto unwind_oom; - memset(pdata->ptrs[i], 0, size); - } - - /* Catch derefs w/o wrappers */ - return (void *) (~(unsigned long) pdata); - -unwind_oom: - while (--i >= 0) { - if (!cpu_possible(i)) - continue; - kfree(pdata->ptrs[i]); - } - kfree(pdata); - return NULL; -} -EXPORT_SYMBOL(__alloc_percpu); - -void -free_percpu(const void *objp) -{ - int i; - struct percpu_data *p = (struct percpu_data *) (~(unsigned long) objp); - - for_each_possible_cpu(i) - kfree(p->ptrs[i]); - - kfree(p); -} -EXPORT_SYMBOL(free_percpu); - -#endif
diff --git a/mm/swap.c b/mm/swap.c index 687686a..2e0e871 100644 --- a/mm/swap.c +++ b/mm/swap.c
@@ -34,6 +34,25 @@ /* How many pages do we try to swap or page in/out together? */ int page_cluster; +/* + * This path almost never happens for VM activity - pages are normally + * freed via pagevecs. But it gets used by networking. + */ +static void fastcall __page_cache_release(struct page *page) +{ + if (PageLRU(page)) { + unsigned long flags; + struct zone *zone = page_zone(page); + + spin_lock_irqsave(&zone->lru_lock, flags); + VM_BUG_ON(!PageLRU(page)); + __ClearPageLRU(page); + del_page_from_lru(zone, page); + spin_unlock_irqrestore(&zone->lru_lock, flags); + } + free_hot_page(page); +} + static void put_compound_page(struct page *page) { page = (struct page *)page_private(page); @@ -223,26 +242,6 @@ #endif /* - * This path almost never happens for VM activity - pages are normally - * freed via pagevecs. But it gets used by networking. - */ -void fastcall __page_cache_release(struct page *page) -{ - if (PageLRU(page)) { - unsigned long flags; - struct zone *zone = page_zone(page); - - spin_lock_irqsave(&zone->lru_lock, flags); - BUG_ON(!PageLRU(page)); - __ClearPageLRU(page); - del_page_from_lru(zone, page); - spin_unlock_irqrestore(&zone->lru_lock, flags); - } - free_hot_page(page); -} -EXPORT_SYMBOL(__page_cache_release); - -/* * Batched page_cache_release(). Decrement the reference count on all the * passed pages. If it fell to zero then remove the page from the LRU and * free it. @@ -284,7 +283,7 @@ zone = pagezone; spin_lock_irq(&zone->lru_lock); } - BUG_ON(!PageLRU(page)); + VM_BUG_ON(!PageLRU(page)); __ClearPageLRU(page); del_page_from_lru(zone, page); } @@ -337,7 +336,7 @@ for (i = 0; i < pagevec_count(pvec); i++) { struct page *page = pvec->pages[i]; - BUG_ON(PageLRU(page)); + VM_BUG_ON(PageLRU(page)); if (put_page_testzero(page)) pagevec_add(&pages_to_free, page); } @@ -364,7 +363,7 @@ zone = pagezone; spin_lock_irq(&zone->lru_lock); } - BUG_ON(PageLRU(page)); + VM_BUG_ON(PageLRU(page)); SetPageLRU(page); add_page_to_inactive_list(zone, page); } @@ -391,9 +390,9 @@ zone = pagezone; spin_lock_irq(&zone->lru_lock); } - BUG_ON(PageLRU(page)); + VM_BUG_ON(PageLRU(page)); SetPageLRU(page); - BUG_ON(PageActive(page)); + VM_BUG_ON(PageActive(page)); SetPageActive(page); add_page_to_active_list(zone, page); }
diff --git a/mm/truncate.c b/mm/truncate.c index c6ab55e..a654928 100644 --- a/mm/truncate.c +++ b/mm/truncate.c
@@ -9,6 +9,7 @@ #include <linux/kernel.h> #include <linux/mm.h> +#include <linux/swap.h> #include <linux/module.h> #include <linux/pagemap.h> #include <linux/pagevec.h> @@ -52,36 +53,26 @@ /* * This is for invalidate_inode_pages(). That function can be called at * any time, and is not supposed to throw away dirty pages. But pages can - * be marked dirty at any time too. So we re-check the dirtiness inside - * ->tree_lock. That provides exclusion against the __set_page_dirty - * functions. + * be marked dirty at any time too, so use remove_mapping which safely + * discards clean, unused pages. * * Returns non-zero if the page was successfully invalidated. */ static int invalidate_complete_page(struct address_space *mapping, struct page *page) { + int ret; + if (page->mapping != mapping) return 0; if (PagePrivate(page) && !try_to_release_page(page, 0)) return 0; - write_lock_irq(&mapping->tree_lock); - if (PageDirty(page)) - goto failed; - if (page_count(page) != 2) /* caller's ref + pagecache ref */ - goto failed; - - BUG_ON(PagePrivate(page)); - __remove_from_page_cache(page); - write_unlock_irq(&mapping->tree_lock); + ret = remove_mapping(mapping, page); ClearPageUptodate(page); - page_cache_release(page); /* pagecache ref */ - return 1; -failed: - write_unlock_irq(&mapping->tree_lock); - return 0; + + return ret; } /**
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index 266162d..1ac191c 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c
@@ -24,6 +24,9 @@ DEFINE_RWLOCK(vmlist_lock); struct vm_struct *vmlist; +static void *__vmalloc_node(unsigned long size, gfp_t gfp_mask, pgprot_t prot, + int node); + static void vunmap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end) { pte_t *pte; @@ -238,7 +241,6 @@ /** * get_vm_area - reserve a contingous kernel virtual area - * * @size: size of the area * @flags: %VM_IOREMAP for I/O mappings or VM_ALLOC * @@ -270,7 +272,7 @@ } /* Caller must hold vmlist_lock */ -struct vm_struct *__remove_vm_area(void *addr) +static struct vm_struct *__remove_vm_area(void *addr) { struct vm_struct **p, *tmp; @@ -293,7 +295,6 @@ /** * remove_vm_area - find and remove a contingous kernel virtual area - * * @addr: base address * * Search for the kernel VM area starting at @addr, and remove it. @@ -352,7 +353,6 @@ /** * vfree - release memory allocated by vmalloc() - * * @addr: memory base address * * Free the virtually contiguous memory area starting at @addr, as @@ -370,7 +370,6 @@ /** * vunmap - release virtual mapping obtained by vmap() - * * @addr: memory base address * * Free the virtually contiguous memory area starting at @addr, @@ -387,7 +386,6 @@ /** * vmap - map an array of pages into virtually contiguous space - * * @pages: array of page pointers * @count: number of pages to map * @flags: vm_area->flags @@ -468,7 +466,6 @@ /** * __vmalloc_node - allocate virtually contiguous memory - * * @size: allocation size * @gfp_mask: flags for the page level allocator * @prot: protection mask for the allocated pages @@ -478,8 +475,8 @@ * allocator with @gfp_mask flags. Map them into contiguous * kernel virtual space, using a pagetable protection of @prot. */ -void *__vmalloc_node(unsigned long size, gfp_t gfp_mask, pgprot_t prot, - int node) +static void *__vmalloc_node(unsigned long size, gfp_t gfp_mask, pgprot_t prot, + int node) { struct vm_struct *area; @@ -493,7 +490,6 @@ return __vmalloc_area_node(area, gfp_mask, prot, node); } -EXPORT_SYMBOL(__vmalloc_node); void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot) { @@ -503,9 +499,7 @@ /** * vmalloc - allocate virtually contiguous memory - * * @size: allocation size - * * Allocate enough pages to cover @size from the page level * allocator and map them into contiguous kernel virtual space. * @@ -519,11 +513,11 @@ EXPORT_SYMBOL(vmalloc); /** - * vmalloc_user - allocate virtually contiguous memory which has - * been zeroed so it can be mapped to userspace without - * leaking data. + * vmalloc_user - allocate zeroed virtually contiguous memory for userspace + * @size: allocation size * - * @size: allocation size + * The resulting memory area is zeroed so it can be mapped to userspace + * without leaking data. */ void *vmalloc_user(unsigned long size) { @@ -542,7 +536,6 @@ /** * vmalloc_node - allocate memory on a specific node - * * @size: allocation size * @node: numa node * @@ -564,7 +557,6 @@ /** * vmalloc_exec - allocate virtually contiguous, executable memory - * * @size: allocation size * * Kernel-internal function to allocate enough pages to cover @size @@ -582,7 +574,6 @@ /** * vmalloc_32 - allocate virtually contiguous memory (32bit addressable) - * * @size: allocation size * * Allocate enough 32bit PA addressable pages to cover @size from the @@ -595,11 +586,11 @@ EXPORT_SYMBOL(vmalloc_32); /** - * vmalloc_32_user - allocate virtually contiguous memory (32bit - * addressable) which is zeroed so it can be - * mapped to userspace without leaking data. - * + * vmalloc_32_user - allocate zeroed virtually contiguous 32bit memory * @size: allocation size + * + * The resulting memory area is 32bit addressable and zeroed so it can be + * mapped to userspace without leaking data. */ void *vmalloc_32_user(unsigned long size) { @@ -693,7 +684,6 @@ /** * remap_vmalloc_range - map vmalloc pages to userspace - * * @vma: vma to cover (map full range of vma) * @addr: vmalloc memory * @pgoff: number of pages into addr before first page to map
diff --git a/mm/vmscan.c b/mm/vmscan.c index 5d4c4d0..eca7031 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c
@@ -19,6 +19,7 @@ #include <linux/pagemap.h> #include <linux/init.h> #include <linux/highmem.h> +#include <linux/vmstat.h> #include <linux/file.h> #include <linux/writeback.h> #include <linux/blkdev.h> @@ -62,6 +63,8 @@ int swap_cluster_max; int swappiness; + + int all_unreclaimable; }; /* @@ -368,7 +371,7 @@ /* synchronous write or broken a_ops? */ ClearPageReclaim(page); } - + inc_zone_page_state(page, NR_VMSCAN_WRITE); return PAGE_SUCCESS; } @@ -377,15 +380,34 @@ int remove_mapping(struct address_space *mapping, struct page *page) { - if (!mapping) - return 0; /* truncate got there first */ + BUG_ON(!PageLocked(page)); + BUG_ON(mapping != page_mapping(page)); write_lock_irq(&mapping->tree_lock); - /* - * The non-racy check for busy page. It is critical to check - * PageDirty _after_ making sure that the page is freeable and - * not in use by anybody. (pagecache + us == 2) + * The non racy check for a busy page. + * + * Must be careful with the order of the tests. When someone has + * a ref to the page, it may be possible that they dirty it then + * drop the reference. So if PageDirty is tested before page_count + * here, then the following race may occur: + * + * get_user_pages(&page); + * [user mapping goes away] + * write_to(page); + * !PageDirty(page) [good] + * SetPageDirty(page); + * put_page(page); + * !page_count(page) [good, discard it] + * + * [oops, our write_to data is lost] + * + * Reversing the order of the tests ensures such a situation cannot + * escape unnoticed. The smp_rmb is needed to ensure the page->flags + * load is not satisfied before that of page->_count. + * + * Note that if SetPageDirty is always performed via set_page_dirty, + * and thus under tree_lock, then this ordering is not required. */ if (unlikely(page_count(page) != 2)) goto cannot_free; @@ -440,7 +462,7 @@ if (TestSetPageLocked(page)) goto keep; - BUG_ON(PageActive(page)); + VM_BUG_ON(PageActive(page)); sc->nr_scanned++; @@ -547,7 +569,7 @@ goto free_it; } - if (!remove_mapping(mapping, page)) + if (!mapping || !remove_mapping(mapping, page)) goto keep_locked; free_it: @@ -564,7 +586,7 @@ unlock_page(page); keep: list_add(&page->lru, &ret_pages); - BUG_ON(PageLRU(page)); + VM_BUG_ON(PageLRU(page)); } list_splice(&ret_pages, page_list); if (pagevec_count(&freed_pvec)) @@ -603,7 +625,7 @@ page = lru_to_page(src); prefetchw_prev_lru_page(page, src, flags); - BUG_ON(!PageLRU(page)); + VM_BUG_ON(!PageLRU(page)); list_del(&page->lru); target = src; @@ -674,7 +696,7 @@ */ while (!list_empty(&page_list)) { page = lru_to_page(&page_list); - BUG_ON(PageLRU(page)); + VM_BUG_ON(PageLRU(page)); SetPageLRU(page); list_del(&page->lru); if (PageActive(page)) @@ -695,6 +717,11 @@ return nr_reclaimed; } +static inline int zone_is_near_oom(struct zone *zone) +{ + return zone->pages_scanned >= (zone->nr_active + zone->nr_inactive)*3; +} + /* * This moves pages from the active list to the inactive list. * @@ -730,6 +757,9 @@ long distress; long swap_tendency; + if (zone_is_near_oom(zone)) + goto force_reclaim_mapped; + /* * `distress' is a measure of how much trouble we're having * reclaiming pages. 0 -> no problems. 100 -> great trouble. @@ -765,6 +795,7 @@ * memory onto the inactive list. */ if (swap_tendency >= 100) +force_reclaim_mapped: reclaim_mapped = 1; } @@ -797,9 +828,9 @@ while (!list_empty(&l_inactive)) { page = lru_to_page(&l_inactive); prefetchw_prev_lru_page(page, &l_inactive, flags); - BUG_ON(PageLRU(page)); + VM_BUG_ON(PageLRU(page)); SetPageLRU(page); - BUG_ON(!PageActive(page)); + VM_BUG_ON(!PageActive(page)); ClearPageActive(page); list_move(&page->lru, &zone->inactive_list); @@ -827,9 +858,9 @@ while (!list_empty(&l_active)) { page = lru_to_page(&l_active); prefetchw_prev_lru_page(page, &l_active, flags); - BUG_ON(PageLRU(page)); + VM_BUG_ON(PageLRU(page)); SetPageLRU(page); - BUG_ON(!PageActive(page)); + VM_BUG_ON(!PageActive(page)); list_move(&page->lru, &zone->active_list); pgmoved++; if (!pagevec_add(&pvec, page)) { @@ -925,6 +956,7 @@ unsigned long nr_reclaimed = 0; int i; + sc->all_unreclaimable = 1; for (i = 0; zones[i] != NULL; i++) { struct zone *zone = zones[i]; @@ -941,6 +973,8 @@ if (zone->all_unreclaimable && priority != DEF_PRIORITY) continue; /* Let kswapd poll it */ + sc->all_unreclaimable = 0; + nr_reclaimed += shrink_zone(priority, zone, sc); } return nr_reclaimed; @@ -1021,6 +1055,9 @@ if (sc.nr_scanned && priority < DEF_PRIORITY - 2) blk_congestion_wait(WRITE, HZ/10); } + /* top priority shrink_caches still had more to do? don't OOM, then */ + if (!sc.all_unreclaimable) + ret = 1; out: for (i = 0; zones[i] != 0; i++) { struct zone *zone = zones[i]; @@ -1153,7 +1190,7 @@ if (zone->all_unreclaimable) continue; if (nr_slab == 0 && zone->pages_scanned >= - (zone->nr_active + zone->nr_inactive) * 4) + (zone->nr_active + zone->nr_inactive) * 6) zone->all_unreclaimable = 1; /* * If we've done a decent amount of scanning and @@ -1361,7 +1398,7 @@ for_each_zone(zone) lru_pages += zone->nr_active + zone->nr_inactive; - nr_slab = global_page_state(NR_SLAB); + nr_slab = global_page_state(NR_SLAB_RECLAIMABLE); /* If slab caches are huge, it's better to hit them first */ while (nr_slab >= lru_pages) { reclaim_state.reclaimed_slab = 0; @@ -1510,7 +1547,6 @@ #define RECLAIM_ZONE (1<<0) /* Run shrink_cache on the zone */ #define RECLAIM_WRITE (1<<1) /* Writeout pages during reclaim */ #define RECLAIM_SWAP (1<<2) /* Swap pages out during reclaim */ -#define RECLAIM_SLAB (1<<3) /* Do a global slab shrink if the zone is out of memory */ /* * Priority for ZONE_RECLAIM. This determines the fraction of pages @@ -1526,6 +1562,12 @@ int sysctl_min_unmapped_ratio = 1; /* + * If the number of slab pages in a zone grows beyond this percentage then + * slab reclaim needs to occur. + */ +int sysctl_min_slab_ratio = 5; + +/* * Try to free up some pages from this zone through reclaim. */ static int __zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order) @@ -1544,6 +1586,7 @@ .gfp_mask = gfp_mask, .swappiness = vm_swappiness, }; + unsigned long slab_reclaimable; disable_swap_token(); cond_resched(); @@ -1556,29 +1599,43 @@ reclaim_state.reclaimed_slab = 0; p->reclaim_state = &reclaim_state; - /* - * Free memory by calling shrink zone with increasing priorities - * until we have enough memory freed. - */ - priority = ZONE_RECLAIM_PRIORITY; - do { - nr_reclaimed += shrink_zone(priority, zone, &sc); - priority--; - } while (priority >= 0 && nr_reclaimed < nr_pages); + if (zone_page_state(zone, NR_FILE_PAGES) - + zone_page_state(zone, NR_FILE_MAPPED) > + zone->min_unmapped_pages) { + /* + * Free memory by calling shrink zone with increasing + * priorities until we have enough memory freed. + */ + priority = ZONE_RECLAIM_PRIORITY; + do { + nr_reclaimed += shrink_zone(priority, zone, &sc); + priority--; + } while (priority >= 0 && nr_reclaimed < nr_pages); + } - if (nr_reclaimed < nr_pages && (zone_reclaim_mode & RECLAIM_SLAB)) { + slab_reclaimable = zone_page_state(zone, NR_SLAB_RECLAIMABLE); + if (slab_reclaimable > zone->min_slab_pages) { /* * shrink_slab() does not currently allow us to determine how - * many pages were freed in this zone. So we just shake the slab - * a bit and then go off node for this particular allocation - * despite possibly having freed enough memory to allocate in - * this zone. If we freed local memory then the next - * allocations will be local again. + * many pages were freed in this zone. So we take the current + * number of slab pages and shake the slab until it is reduced + * by the same nr_pages that we used for reclaiming unmapped + * pages. * - * shrink_slab will free memory on all zones and may take - * a long time. + * Note that shrink_slab will free memory on all zones and may + * take a long time. */ - shrink_slab(sc.nr_scanned, gfp_mask, order); + while (shrink_slab(sc.nr_scanned, gfp_mask, order) && + zone_page_state(zone, NR_SLAB_RECLAIMABLE) > + slab_reclaimable - nr_pages) + ; + + /* + * Update nr_reclaimed by the number of slab pages we + * reclaimed from this zone. + */ + nr_reclaimed += slab_reclaimable - + zone_page_state(zone, NR_SLAB_RECLAIMABLE); } p->reclaim_state = NULL; @@ -1592,7 +1649,8 @@ int node_id; /* - * Zone reclaim reclaims unmapped file backed pages. + * Zone reclaim reclaims unmapped file backed pages and + * slab pages if we are over the defined limits. * * A small portion of unmapped file backed pages is needed for * file I/O otherwise pages read by file I/O will be immediately @@ -1601,7 +1659,9 @@ * unmapped file backed pages. */ if (zone_page_state(zone, NR_FILE_PAGES) - - zone_page_state(zone, NR_FILE_MAPPED) <= zone->min_unmapped_ratio) + zone_page_state(zone, NR_FILE_MAPPED) <= zone->min_unmapped_pages + && zone_page_state(zone, NR_SLAB_RECLAIMABLE) + <= zone->min_slab_pages) return 0; /* @@ -1621,7 +1681,7 @@ * over remote processors and spread off node memory allocations * as wide as possible. */ - node_id = zone->zone_pgdat->node_id; + node_id = zone_to_nid(zone); mask = node_to_cpumask(node_id); if (!cpus_empty(mask) && node_id != numa_node_id()) return 0;
diff --git a/mm/vmstat.c b/mm/vmstat.c index c1b5f41..a2b6a9f 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c
@@ -321,6 +321,9 @@ for_each_zone(zone) { struct per_cpu_pageset *pcp; + if (!populated_zone(zone)) + continue; + pcp = zone_pcp(zone, cpu); for (i = 0; i < NR_VM_ZONE_STAT_ITEMS; i++) @@ -368,7 +371,7 @@ __inc_zone_state(z, NUMA_MISS); __inc_zone_state(zonelist->zones[0], NUMA_FOREIGN); } - if (z->zone_pgdat == NODE_DATA(numa_node_id())) + if (z->node == numa_node_id()) __inc_zone_state(z, NUMA_LOCAL); else __inc_zone_state(z, NUMA_OTHER); @@ -435,17 +438,34 @@ .show = frag_show, }; +#ifdef CONFIG_ZONE_DMA32 +#define TEXT_FOR_DMA32(xx) xx "_dma32", +#else +#define TEXT_FOR_DMA32(xx) +#endif + +#ifdef CONFIG_HIGHMEM +#define TEXT_FOR_HIGHMEM(xx) xx "_high", +#else +#define TEXT_FOR_HIGHMEM(xx) +#endif + +#define TEXTS_FOR_ZONES(xx) xx "_dma", TEXT_FOR_DMA32(xx) xx "_normal", \ + TEXT_FOR_HIGHMEM(xx) + static char *vmstat_text[] = { /* Zoned VM counters */ "nr_anon_pages", "nr_mapped", "nr_file_pages", - "nr_slab", + "nr_slab_reclaimable", + "nr_slab_unreclaimable", "nr_page_table_pages", "nr_dirty", "nr_writeback", "nr_unstable", "nr_bounce", + "nr_vmscan_write", #ifdef CONFIG_NUMA "numa_hit", @@ -462,10 +482,7 @@ "pswpin", "pswpout", - "pgalloc_dma", - "pgalloc_dma32", - "pgalloc_normal", - "pgalloc_high", + TEXTS_FOR_ZONES("pgalloc") "pgfree", "pgactivate", @@ -474,25 +491,10 @@ "pgfault", "pgmajfault", - "pgrefill_dma", - "pgrefill_dma32", - "pgrefill_normal", - "pgrefill_high", - - "pgsteal_dma", - "pgsteal_dma32", - "pgsteal_normal", - "pgsteal_high", - - "pgscan_kswapd_dma", - "pgscan_kswapd_dma32", - "pgscan_kswapd_normal", - "pgscan_kswapd_high", - - "pgscan_direct_dma", - "pgscan_direct_dma32", - "pgscan_direct_normal", - "pgscan_direct_high", + TEXTS_FOR_ZONES("pgrefill") + TEXTS_FOR_ZONES("pgsteal") + TEXTS_FOR_ZONES("pgscan_kswapd") + TEXTS_FOR_ZONES("pgscan_direct") "pginodesteal", "slabs_scanned",
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index 1347276..f47f319 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c
@@ -344,8 +344,6 @@ if(dev->wireless_handlers && dev->wireless_handlers->get_wireless_stats) iw = dev->wireless_handlers->get_wireless_stats(dev); - else if (dev->get_wireless_stats) - iw = dev->get_wireless_stats(dev); if (iw != NULL) ret = (*format)(iw, buf); } @@ -465,8 +463,7 @@ *groups++ = &netstat_group; #ifdef WIRELESS_EXT - if (net->get_wireless_stats - || (net->wireless_handlers && net->wireless_handlers->get_wireless_stats)) + if (net->wireless_handlers && net->wireless_handlers->get_wireless_stats) *groups++ = &wireless_group; #endif
diff --git a/net/core/wireless.c b/net/core/wireless.c index 3168fca..ffff0da 100644 --- a/net/core/wireless.c +++ b/net/core/wireless.c
@@ -68,6 +68,14 @@ * * v8 - 17.02.06 - Jean II * o RtNetlink requests support (SET/GET) + * + * v8b - 03.08.06 - Herbert Xu + * o Fix Wireless Event locking issues. + * + * v9 - 14.3.06 - Jean II + * o Change length in ESSID and NICK to strlen() instead of strlen()+1 + * o Make standard_ioctl_num and standard_event_num unsigned + * o Remove (struct net_device *)->get_wireless_stats() */ /***************************** INCLUDES *****************************/ @@ -234,24 +242,24 @@ [SIOCSIWESSID - SIOCIWFIRST] = { .header_type = IW_HEADER_TYPE_POINT, .token_size = 1, - .max_tokens = IW_ESSID_MAX_SIZE + 1, + .max_tokens = IW_ESSID_MAX_SIZE, .flags = IW_DESCR_FLAG_EVENT, }, [SIOCGIWESSID - SIOCIWFIRST] = { .header_type = IW_HEADER_TYPE_POINT, .token_size = 1, - .max_tokens = IW_ESSID_MAX_SIZE + 1, + .max_tokens = IW_ESSID_MAX_SIZE, .flags = IW_DESCR_FLAG_DUMP, }, [SIOCSIWNICKN - SIOCIWFIRST] = { .header_type = IW_HEADER_TYPE_POINT, .token_size = 1, - .max_tokens = IW_ESSID_MAX_SIZE + 1, + .max_tokens = IW_ESSID_MAX_SIZE, }, [SIOCGIWNICKN - SIOCIWFIRST] = { .header_type = IW_HEADER_TYPE_POINT, .token_size = 1, - .max_tokens = IW_ESSID_MAX_SIZE + 1, + .max_tokens = IW_ESSID_MAX_SIZE, }, [SIOCSIWRATE - SIOCIWFIRST] = { .header_type = IW_HEADER_TYPE_PARAM, @@ -338,8 +346,8 @@ .max_tokens = sizeof(struct iw_pmksa), }, }; -static const int standard_ioctl_num = (sizeof(standard_ioctl) / - sizeof(struct iw_ioctl_description)); +static const unsigned standard_ioctl_num = (sizeof(standard_ioctl) / + sizeof(struct iw_ioctl_description)); /* * Meta-data about all the additional standard Wireless Extension events @@ -389,8 +397,8 @@ .max_tokens = sizeof(struct iw_pmkid_cand), }, }; -static const int standard_event_num = (sizeof(standard_event) / - sizeof(struct iw_ioctl_description)); +static const unsigned standard_event_num = (sizeof(standard_event) / + sizeof(struct iw_ioctl_description)); /* Size (in bytes) of the various private data types */ static const char iw_priv_type_size[] = { @@ -465,17 +473,6 @@ (dev->wireless_handlers->get_wireless_stats != NULL)) return dev->wireless_handlers->get_wireless_stats(dev); - /* Old location, field to be removed in next WE */ - if(dev->get_wireless_stats) { - static int printed_message; - - if (!printed_message++) - printk(KERN_DEBUG "%s (WE) : Driver using old /proc/net/wireless support, please fix driver !\n", - dev->name); - - return dev->get_wireless_stats(dev); - } - /* Not found */ return (struct iw_statistics *) NULL; } @@ -1843,8 +1840,33 @@ */ #ifdef WE_EVENT_RTNETLINK +/* ---------------------------------------------------------------- */ +/* + * Locking... + * ---------- + * + * Thanks to Herbert Xu <herbert@gondor.apana.org.au> for fixing + * the locking issue in here and implementing this code ! + * + * The issue : wireless_send_event() is often called in interrupt context, + * while the Netlink layer can never be called in interrupt context. + * The fully formed RtNetlink events are queued, and then a tasklet is run + * to feed those to Netlink. + * The skb_queue is interrupt safe, and its lock is not held while calling + * Netlink, so there is no possibility of dealock. + * Jean II + */ + static struct sk_buff_head wireless_nlevent_queue; +static int __init wireless_nlevent_init(void) +{ + skb_queue_head_init(&wireless_nlevent_queue); + return 0; +} + +subsys_initcall(wireless_nlevent_init); + static void wireless_nlevent_process(unsigned long data) { struct sk_buff *skb; @@ -1921,13 +1943,6 @@ tasklet_schedule(&wireless_nlevent_tasklet); } -static int __init wireless_nlevent_init(void) -{ - skb_queue_head_init(&wireless_nlevent_queue); - return 0; -} - -subsys_initcall(wireless_nlevent_init); #endif /* WE_EVENT_RTNETLINK */ /* ---------------------------------------------------------------- */
diff --git a/net/dccp/Kconfig b/net/dccp/Kconfig index 859e335..e2a095d 100644 --- a/net/dccp/Kconfig +++ b/net/dccp/Kconfig
@@ -40,6 +40,22 @@ Just say N. +config NET_DCCPPROBE + tristate "DCCP connection probing" + depends on PROC_FS && KPROBES + ---help--- + This module allows for capturing the changes to DCCP connection + state in response to incoming packets. It is used for debugging + DCCP congestion avoidance modules. If you don't understand + what was just said, you don't need it: say N. + + Documentation on how to use the packet generator can be found + at http://linux-net.osdl.org/index.php/DccpProbe + + To compile this code as a module, choose M here: the + module will be called dccp_probe. + + endmenu endmenu
diff --git a/net/dccp/Makefile b/net/dccp/Makefile index 7696e21..17ed99c 100644 --- a/net/dccp/Makefile +++ b/net/dccp/Makefile
@@ -11,9 +11,11 @@ dccp-$(CONFIG_IP_DCCP_ACKVEC) += ackvec.o obj-$(CONFIG_INET_DCCP_DIAG) += dccp_diag.o +obj-$(CONFIG_NET_DCCPPROBE) += dccp_probe.o dccp-$(CONFIG_SYSCTL) += sysctl.o dccp_diag-y := diag.o +dccp_probe-y := probe.o obj-y += ccids/
diff --git a/net/dccp/ccids/ccid2.c b/net/dccp/ccids/ccid2.c index 457dd3d..2efb505 100644 --- a/net/dccp/ccids/ccid2.c +++ b/net/dccp/ccids/ccid2.c
@@ -808,7 +808,7 @@ } static struct ccid_operations ccid2 = { - .ccid_id = 2, + .ccid_id = DCCPC_CCID2, .ccid_name = "ccid2", .ccid_owner = THIS_MODULE, .ccid_hc_tx_obj_size = sizeof(struct ccid2_hc_tx_sock),
diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c index 195aa95..67d2dc0 100644 --- a/net/dccp/ccids/ccid3.c +++ b/net/dccp/ccids/ccid3.c
@@ -1240,7 +1240,7 @@ } static struct ccid_operations ccid3 = { - .ccid_id = 3, + .ccid_id = DCCPC_CCID3, .ccid_name = "ccid3", .ccid_owner = THIS_MODULE, .ccid_hc_tx_obj_size = sizeof(struct ccid3_hc_tx_sock),
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index 9a1a76a..66be29b 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c
@@ -56,9 +56,6 @@ dp->dccps_role = DCCP_ROLE_CLIENT; - if (dccp_service_not_initialized(sk)) - return -EPROTO; - if (addr_len < sizeof(struct sockaddr_in)) return -EINVAL;
diff --git a/net/dccp/probe.c b/net/dccp/probe.c new file mode 100644 index 0000000..146496f --- /dev/null +++ b/net/dccp/probe.c
@@ -0,0 +1,198 @@ +/* + * dccp_probe - Observe the DCCP flow with kprobes. + * + * The idea for this came from Werner Almesberger's umlsim + * Copyright (C) 2004, Stephen Hemminger <shemminger@osdl.org> + * + * Modified for DCCP from Stephen Hemminger's code + * Copyright (C) 2006, Ian McDonald <ian.mcdonald@jandi.co.nz> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/kernel.h> +#include <linux/kprobes.h> +#include <linux/socket.h> +#include <linux/dccp.h> +#include <linux/proc_fs.h> +#include <linux/module.h> +#include <linux/kfifo.h> +#include <linux/vmalloc.h> + +#include "dccp.h" +#include "ccid.h" +#include "ccids/ccid3.h" + +static int port; + +static int bufsize = 64 * 1024; + +static const char procname[] = "dccpprobe"; + +struct { + struct kfifo *fifo; + spinlock_t lock; + wait_queue_head_t wait; + struct timeval tstart; +} dccpw; + +static void printl(const char *fmt, ...) +{ + va_list args; + int len; + struct timeval now; + char tbuf[256]; + + va_start(args, fmt); + do_gettimeofday(&now); + + now.tv_sec -= dccpw.tstart.tv_sec; + now.tv_usec -= dccpw.tstart.tv_usec; + if (now.tv_usec < 0) { + --now.tv_sec; + now.tv_usec += 1000000; + } + + len = sprintf(tbuf, "%lu.%06lu ", + (unsigned long) now.tv_sec, + (unsigned long) now.tv_usec); + len += vscnprintf(tbuf+len, sizeof(tbuf)-len, fmt, args); + va_end(args); + + kfifo_put(dccpw.fifo, tbuf, len); + wake_up(&dccpw.wait); +} + +static int jdccp_sendmsg(struct kiocb *iocb, struct sock *sk, + struct msghdr *msg, size_t size) +{ + const struct dccp_minisock *dmsk = dccp_msk(sk); + const struct inet_sock *inet = inet_sk(sk); + const struct ccid3_hc_tx_sock *hctx; + + if (dmsk->dccpms_tx_ccid == DCCPC_CCID3) + hctx = ccid3_hc_tx_sk(sk); + else + hctx = NULL; + + if (port == 0 || ntohs(inet->dport) == port || + ntohs(inet->sport) == port) { + if (hctx) + printl("%d.%d.%d.%d:%u %d.%d.%d.%d:%u %d %d %d %d %d\n", + NIPQUAD(inet->saddr), ntohs(inet->sport), + NIPQUAD(inet->daddr), ntohs(inet->dport), size, + hctx->ccid3hctx_s, hctx->ccid3hctx_rtt, + hctx->ccid3hctx_p, hctx->ccid3hctx_t_ipi); + else + printl("%d.%d.%d.%d:%u %d.%d.%d.%d:%u %d\n", + NIPQUAD(inet->saddr), ntohs(inet->sport), + NIPQUAD(inet->daddr), ntohs(inet->dport), size); + } + + jprobe_return(); + return 0; +} + +static struct jprobe dccp_send_probe = { + .kp = { .addr = (kprobe_opcode_t *)&dccp_sendmsg, }, + .entry = (kprobe_opcode_t *)&jdccp_sendmsg, +}; + +static int dccpprobe_open(struct inode *inode, struct file *file) +{ + kfifo_reset(dccpw.fifo); + do_gettimeofday(&dccpw.tstart); + return 0; +} + +static ssize_t dccpprobe_read(struct file *file, char __user *buf, + size_t len, loff_t *ppos) +{ + int error = 0, cnt = 0; + unsigned char *tbuf; + + if (!buf || len < 0) + return -EINVAL; + + if (len == 0) + return 0; + + tbuf = vmalloc(len); + if (!tbuf) + return -ENOMEM; + + error = wait_event_interruptible(dccpw.wait, + __kfifo_len(dccpw.fifo) != 0); + if (error) + goto out_free; + + cnt = kfifo_get(dccpw.fifo, tbuf, len); + error = copy_to_user(buf, tbuf, cnt); + +out_free: + vfree(tbuf); + + return error ? error : cnt; +} + +static struct file_operations dccpprobe_fops = { + .owner = THIS_MODULE, + .open = dccpprobe_open, + .read = dccpprobe_read, +}; + +static __init int dccpprobe_init(void) +{ + int ret = -ENOMEM; + + init_waitqueue_head(&dccpw.wait); + spin_lock_init(&dccpw.lock); + dccpw.fifo = kfifo_alloc(bufsize, GFP_KERNEL, &dccpw.lock); + + if (!proc_net_fops_create(procname, S_IRUSR, &dccpprobe_fops)) + goto err0; + + ret = register_jprobe(&dccp_send_probe); + if (ret) + goto err1; + + pr_info("DCCP watch registered (port=%d)\n", port); + return 0; +err1: + proc_net_remove(procname); +err0: + kfifo_free(dccpw.fifo); + return ret; +} +module_init(dccpprobe_init); + +static __exit void dccpprobe_exit(void) +{ + kfifo_free(dccpw.fifo); + proc_net_remove(procname); + unregister_jprobe(&dccp_send_probe); + +} +module_exit(dccpprobe_exit); + +MODULE_PARM_DESC(port, "Port to match (0=all)"); +module_param(port, int, 0); + +MODULE_PARM_DESC(bufsize, "Log buffer size (default 64k)"); +module_param(bufsize, int, 0); + +MODULE_AUTHOR("Ian McDonald <ian.mcdonald@jandi.co.nz>"); +MODULE_DESCRIPTION("DCCP snooper"); +MODULE_LICENSE("GPL");
diff --git a/net/dccp/proto.c b/net/dccp/proto.c index 962df0e..72cbdcfc 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c
@@ -217,7 +217,7 @@ icsk->icsk_sync_mss = dccp_sync_mss; dp->dccps_mss_cache = 536; dp->dccps_role = DCCP_ROLE_UNDEFINED; - dp->dccps_service = DCCP_SERVICE_INVALID_VALUE; + dp->dccps_service = DCCP_SERVICE_CODE_IS_ABSENT; dp->dccps_l_ack_ratio = dp->dccps_r_ack_ratio = 1; return 0; @@ -267,12 +267,6 @@ struct dccp_sock *dp = dccp_sk(sk); dp->dccps_role = DCCP_ROLE_LISTEN; - /* - * Apps need to use setsockopt(DCCP_SOCKOPT_SERVICE) - * before calling listen() - */ - if (dccp_service_not_initialized(sk)) - return -EPROTO; return inet_csk_listen_start(sk, TCP_SYNQ_HSIZE); } @@ -540,9 +534,6 @@ int err = -ENOENT, slen = 0, total_len = sizeof(u32); lock_sock(sk); - if (dccp_service_not_initialized(sk)) - goto out; - if ((sl = dp->dccps_service_list) != NULL) { slen = sl->dccpsl_nr * sizeof(u32); total_len += slen;
diff --git a/net/ieee80211/softmac/ieee80211softmac_wx.c b/net/ieee80211/softmac/ieee80211softmac_wx.c index 75320b6..2aa779d 100644 --- a/net/ieee80211/softmac/ieee80211softmac_wx.c +++ b/net/ieee80211/softmac/ieee80211softmac_wx.c
@@ -80,10 +80,10 @@ * If it's our network, ignore the change, we're already doing it! */ if((sm->associnfo.associating || sm->associated) && - (data->essid.flags && data->essid.length && extra)) { + (data->essid.flags && data->essid.length)) { /* Get the associating network */ n = ieee80211softmac_get_network_by_bssid(sm, sm->associnfo.bssid); - if(n && n->essid.len == (data->essid.length - 1) && + if(n && n->essid.len == data->essid.length && !memcmp(n->essid.data, extra, n->essid.len)) { dprintk(KERN_INFO PFX "Already associating or associated to "MAC_FMT"\n", MAC_ARG(sm->associnfo.bssid)); @@ -109,8 +109,8 @@ sm->associnfo.static_essid = 0; sm->associnfo.assoc_wait = 0; - if (data->essid.flags && data->essid.length && extra /*required?*/) { - length = min(data->essid.length - 1, IW_ESSID_MAX_SIZE); + if (data->essid.flags && data->essid.length) { + length = min((int)data->essid.length, IW_ESSID_MAX_SIZE); if (length) { memcpy(sm->associnfo.req_essid.data, extra, length); sm->associnfo.static_essid = 1;
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig index 1650b64..30af4a4 100644 --- a/net/ipv4/Kconfig +++ b/net/ipv4/Kconfig
@@ -448,24 +448,22 @@ depends on INET_DIAG def_tristate INET_DIAG -config TCP_CONG_ADVANCED +menuconfig TCP_CONG_ADVANCED bool "TCP: advanced congestion control" ---help--- Support for selection of various TCP congestion control modules. Nearly all users can safely say no here, and a safe default - selection will be made (BIC-TCP with new Reno as a fallback). + selection will be made (CUBIC with new Reno as a fallback). If unsure, say N. -# TCP Reno is builtin (required as fallback) -menu "TCP congestion control" - depends on TCP_CONG_ADVANCED +if TCP_CONG_ADVANCED config TCP_CONG_BIC tristate "Binary Increase Congestion (BIC) control" - default y + default m ---help--- BIC-TCP is a sender-side only change that ensures a linear RTT fairness under large windows while offering both scalability and @@ -479,7 +477,7 @@ config TCP_CONG_CUBIC tristate "CUBIC TCP" - default m + default y ---help--- This is version 2.0 of BIC-TCP which uses a cubic growth function among other techniques. @@ -574,12 +572,49 @@ loss packets. See http://www.ntu.edu.sg/home5/ZHOU0022/papers/CPFu03a.pdf -endmenu +choice + prompt "Default TCP congestion control" + default DEFAULT_CUBIC + help + Select the TCP congestion control that will be used by default + for all connections. -config TCP_CONG_BIC + config DEFAULT_BIC + bool "Bic" if TCP_CONG_BIC=y + + config DEFAULT_CUBIC + bool "Cubic" if TCP_CONG_CUBIC=y + + config DEFAULT_HTCP + bool "Htcp" if TCP_CONG_HTCP=y + + config DEFAULT_VEGAS + bool "Vegas" if TCP_CONG_VEGAS=y + + config DEFAULT_WESTWOOD + bool "Westwood" if TCP_CONG_WESTWOOD=y + + config DEFAULT_RENO + bool "Reno" + +endchoice + +endif + +config TCP_CONG_CUBIC tristate depends on !TCP_CONG_ADVANCED default y +config DEFAULT_TCP_CONG + string + default "bic" if DEFAULT_BIC + default "cubic" if DEFAULT_CUBIC + default "htcp" if DEFAULT_HTCP + default "vegas" if DEFAULT_VEGAS + default "westwood" if DEFAULT_WESTWOOD + default "reno" if DEFAULT_RENO + default "cubic" + source "net/ipv4/ipvs/Kconfig"
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c index 80a2a09..e6ce0b3 100644 --- a/net/ipv4/cipso_ipv4.c +++ b/net/ipv4/cipso_ipv4.c
@@ -259,7 +259,7 @@ u32 iter; for (iter = 0; iter < CIPSO_V4_CACHE_BUCKETS; iter++) { - spin_lock(&cipso_v4_cache[iter].lock); + spin_lock_bh(&cipso_v4_cache[iter].lock); list_for_each_entry_safe(entry, tmp_entry, &cipso_v4_cache[iter].list, list) { @@ -267,7 +267,7 @@ cipso_v4_cache_entry_free(entry); } cipso_v4_cache[iter].size = 0; - spin_unlock(&cipso_v4_cache[iter].lock); + spin_unlock_bh(&cipso_v4_cache[iter].lock); } return; @@ -309,7 +309,7 @@ hash = cipso_v4_map_cache_hash(key, key_len); bkt = hash & (CIPSO_V4_CACHE_BUCKETBITS - 1); - spin_lock(&cipso_v4_cache[bkt].lock); + spin_lock_bh(&cipso_v4_cache[bkt].lock); list_for_each_entry(entry, &cipso_v4_cache[bkt].list, list) { if (entry->hash == hash && entry->key_len == key_len && @@ -318,7 +318,7 @@ secattr->cache.free = entry->lsm_data.free; secattr->cache.data = entry->lsm_data.data; if (prev_entry == NULL) { - spin_unlock(&cipso_v4_cache[bkt].lock); + spin_unlock_bh(&cipso_v4_cache[bkt].lock); return 0; } @@ -333,12 +333,12 @@ &prev_entry->list); } - spin_unlock(&cipso_v4_cache[bkt].lock); + spin_unlock_bh(&cipso_v4_cache[bkt].lock); return 0; } prev_entry = entry; } - spin_unlock(&cipso_v4_cache[bkt].lock); + spin_unlock_bh(&cipso_v4_cache[bkt].lock); return -ENOENT; } @@ -387,7 +387,7 @@ entry->lsm_data.data = secattr->cache.data; bkt = entry->hash & (CIPSO_V4_CACHE_BUCKETBITS - 1); - spin_lock(&cipso_v4_cache[bkt].lock); + spin_lock_bh(&cipso_v4_cache[bkt].lock); if (cipso_v4_cache[bkt].size < cipso_v4_cache_bucketsize) { list_add(&entry->list, &cipso_v4_cache[bkt].list); cipso_v4_cache[bkt].size += 1; @@ -398,7 +398,7 @@ list_add(&entry->list, &cipso_v4_cache[bkt].list); cipso_v4_cache_entry_free(old_entry); } - spin_unlock(&cipso_v4_cache[bkt].lock); + spin_unlock_bh(&cipso_v4_cache[bkt].lock); return 0; @@ -530,197 +530,42 @@ } /** - * cipso_v4_doi_dump_all - Dump all the CIPSO DOI definitions into a sk_buff - * @headroom: the amount of headroom to allocate for the sk_buff + * cipso_v4_doi_walk - Iterate through the DOI definitions + * @skip_cnt: skip past this number of DOI definitions, updated + * @callback: callback for each DOI definition + * @cb_arg: argument for the callback function * * Description: - * Dump a list of all the configured DOI values into a sk_buff. The returned - * sk_buff has room at the front of the sk_buff for @headroom bytes. See - * net/netlabel/netlabel_cipso_v4.h for the LISTALL message format. This - * function may fail if another process is changing the DOI list at the same - * time. Returns a pointer to a sk_buff on success, NULL on error. + * Iterate over the DOI definition list, skipping the first @skip_cnt entries. + * For each entry call @callback, if @callback returns a negative value stop + * 'walking' through the list and return. Updates the value in @skip_cnt upon + * return. Returns zero on success, negative values on failure. * */ -struct sk_buff *cipso_v4_doi_dump_all(size_t headroom) +int cipso_v4_doi_walk(u32 *skip_cnt, + int (*callback) (struct cipso_v4_doi *doi_def, void *arg), + void *cb_arg) { - struct sk_buff *skb = NULL; - struct cipso_v4_doi *iter; + int ret_val = -ENOENT; u32 doi_cnt = 0; - ssize_t buf_len; - - buf_len = NETLBL_LEN_U32; - rcu_read_lock(); - list_for_each_entry_rcu(iter, &cipso_v4_doi_list, list) - if (iter->valid) { - doi_cnt += 1; - buf_len += 2 * NETLBL_LEN_U32; - } - - skb = netlbl_netlink_alloc_skb(headroom, buf_len, GFP_ATOMIC); - if (skb == NULL) - goto doi_dump_all_failure; - - if (nla_put_u32(skb, NLA_U32, doi_cnt) != 0) - goto doi_dump_all_failure; - buf_len -= NETLBL_LEN_U32; - list_for_each_entry_rcu(iter, &cipso_v4_doi_list, list) - if (iter->valid) { - if (buf_len < 2 * NETLBL_LEN_U32) - goto doi_dump_all_failure; - if (nla_put_u32(skb, NLA_U32, iter->doi) != 0) - goto doi_dump_all_failure; - if (nla_put_u32(skb, NLA_U32, iter->type) != 0) - goto doi_dump_all_failure; - buf_len -= 2 * NETLBL_LEN_U32; - } - rcu_read_unlock(); - - return skb; - -doi_dump_all_failure: - rcu_read_unlock(); - kfree(skb); - return NULL; -} - -/** - * cipso_v4_doi_dump - Dump a CIPSO DOI definition into a sk_buff - * @doi: the DOI value - * @headroom: the amount of headroom to allocate for the sk_buff - * - * Description: - * Lookup the DOI definition matching @doi and dump it's contents into a - * sk_buff. The returned sk_buff has room at the front of the sk_buff for - * @headroom bytes. See net/netlabel/netlabel_cipso_v4.h for the LIST message - * format. This function may fail if another process is changing the DOI list - * at the same time. Returns a pointer to a sk_buff on success, NULL on error. - * - */ -struct sk_buff *cipso_v4_doi_dump(u32 doi, size_t headroom) -{ - struct sk_buff *skb = NULL; - struct cipso_v4_doi *iter; - u32 tag_cnt = 0; - u32 lvl_cnt = 0; - u32 cat_cnt = 0; - ssize_t buf_len; - ssize_t tmp; + struct cipso_v4_doi *iter_doi; rcu_read_lock(); - iter = cipso_v4_doi_getdef(doi); - if (iter == NULL) - goto doi_dump_failure; - buf_len = NETLBL_LEN_U32; - switch (iter->type) { - case CIPSO_V4_MAP_PASS: - buf_len += NETLBL_LEN_U32; - while(tag_cnt < CIPSO_V4_TAG_MAXCNT && - iter->tags[tag_cnt] != CIPSO_V4_TAG_INVALID) { - tag_cnt += 1; - buf_len += NETLBL_LEN_U8; - } - break; - case CIPSO_V4_MAP_STD: - buf_len += 3 * NETLBL_LEN_U32; - while (tag_cnt < CIPSO_V4_TAG_MAXCNT && - iter->tags[tag_cnt] != CIPSO_V4_TAG_INVALID) { - tag_cnt += 1; - buf_len += NETLBL_LEN_U8; - } - for (tmp = 0; tmp < iter->map.std->lvl.local_size; tmp++) - if (iter->map.std->lvl.local[tmp] != - CIPSO_V4_INV_LVL) { - lvl_cnt += 1; - buf_len += NETLBL_LEN_U32 + NETLBL_LEN_U8; + list_for_each_entry_rcu(iter_doi, &cipso_v4_doi_list, list) + if (iter_doi->valid) { + if (doi_cnt++ < *skip_cnt) + continue; + ret_val = callback(iter_doi, cb_arg); + if (ret_val < 0) { + doi_cnt--; + goto doi_walk_return; } - for (tmp = 0; tmp < iter->map.std->cat.local_size; tmp++) - if (iter->map.std->cat.local[tmp] != - CIPSO_V4_INV_CAT) { - cat_cnt += 1; - buf_len += NETLBL_LEN_U32 + NETLBL_LEN_U16; - } - break; - } + } - skb = netlbl_netlink_alloc_skb(headroom, buf_len, GFP_ATOMIC); - if (skb == NULL) - goto doi_dump_failure; - - if (nla_put_u32(skb, NLA_U32, iter->type) != 0) - goto doi_dump_failure; - buf_len -= NETLBL_LEN_U32; - if (iter != cipso_v4_doi_getdef(doi)) - goto doi_dump_failure; - switch (iter->type) { - case CIPSO_V4_MAP_PASS: - if (nla_put_u32(skb, NLA_U32, tag_cnt) != 0) - goto doi_dump_failure; - buf_len -= NETLBL_LEN_U32; - for (tmp = 0; - tmp < CIPSO_V4_TAG_MAXCNT && - iter->tags[tmp] != CIPSO_V4_TAG_INVALID; - tmp++) { - if (buf_len < NETLBL_LEN_U8) - goto doi_dump_failure; - if (nla_put_u8(skb, NLA_U8, iter->tags[tmp]) != 0) - goto doi_dump_failure; - buf_len -= NETLBL_LEN_U8; - } - break; - case CIPSO_V4_MAP_STD: - if (nla_put_u32(skb, NLA_U32, tag_cnt) != 0) - goto doi_dump_failure; - if (nla_put_u32(skb, NLA_U32, lvl_cnt) != 0) - goto doi_dump_failure; - if (nla_put_u32(skb, NLA_U32, cat_cnt) != 0) - goto doi_dump_failure; - buf_len -= 3 * NETLBL_LEN_U32; - for (tmp = 0; - tmp < CIPSO_V4_TAG_MAXCNT && - iter->tags[tmp] != CIPSO_V4_TAG_INVALID; - tmp++) { - if (buf_len < NETLBL_LEN_U8) - goto doi_dump_failure; - if (nla_put_u8(skb, NLA_U8, iter->tags[tmp]) != 0) - goto doi_dump_failure; - buf_len -= NETLBL_LEN_U8; - } - for (tmp = 0; tmp < iter->map.std->lvl.local_size; tmp++) - if (iter->map.std->lvl.local[tmp] != - CIPSO_V4_INV_LVL) { - if (buf_len < NETLBL_LEN_U32 + NETLBL_LEN_U8) - goto doi_dump_failure; - if (nla_put_u32(skb, NLA_U32, tmp) != 0) - goto doi_dump_failure; - if (nla_put_u8(skb, - NLA_U8, - iter->map.std->lvl.local[tmp]) != 0) - goto doi_dump_failure; - buf_len -= NETLBL_LEN_U32 + NETLBL_LEN_U8; - } - for (tmp = 0; tmp < iter->map.std->cat.local_size; tmp++) - if (iter->map.std->cat.local[tmp] != - CIPSO_V4_INV_CAT) { - if (buf_len < NETLBL_LEN_U32 + NETLBL_LEN_U16) - goto doi_dump_failure; - if (nla_put_u32(skb, NLA_U32, tmp) != 0) - goto doi_dump_failure; - if (nla_put_u16(skb, - NLA_U16, - iter->map.std->cat.local[tmp]) != 0) - goto doi_dump_failure; - buf_len -= NETLBL_LEN_U32 + NETLBL_LEN_U16; - } - break; - } +doi_walk_return: rcu_read_unlock(); - - return skb; - -doi_dump_failure: - rcu_read_unlock(); - kfree(skb); - return NULL; + *skip_cnt = doi_cnt; + return ret_val; } /** @@ -1486,6 +1331,54 @@ } /** + * cipso_v4_sock_getattr - Get the security attributes from a sock + * @sk: the sock + * @secattr: the security attributes + * + * Description: + * Query @sk to see if there is a CIPSO option attached to the sock and if + * there is return the CIPSO security attributes in @secattr. This function + * requires that @sk be locked, or privately held, but it does not do any + * locking itself. Returns zero on success and negative values on failure. + * + */ +int cipso_v4_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr) +{ + int ret_val = -ENOMSG; + struct inet_sock *sk_inet; + unsigned char *cipso_ptr; + u32 doi; + struct cipso_v4_doi *doi_def; + + sk_inet = inet_sk(sk); + if (sk_inet->opt == NULL || sk_inet->opt->cipso == 0) + return -ENOMSG; + cipso_ptr = sk_inet->opt->__data + sk_inet->opt->cipso - + sizeof(struct iphdr); + ret_val = cipso_v4_cache_check(cipso_ptr, cipso_ptr[1], secattr); + if (ret_val == 0) + return ret_val; + + doi = ntohl(*(u32 *)&cipso_ptr[2]); + rcu_read_lock(); + doi_def = cipso_v4_doi_getdef(doi); + if (doi_def == NULL) { + rcu_read_unlock(); + return -ENOMSG; + } + switch (cipso_ptr[6]) { + case CIPSO_V4_TAG_RBITMAP: + ret_val = cipso_v4_parsetag_rbm(doi_def, + &cipso_ptr[6], + secattr); + break; + } + rcu_read_unlock(); + + return ret_val; +} + +/** * cipso_v4_socket_getattr - Get the security attributes from a socket * @sock: the socket * @secattr: the security attributes @@ -1499,42 +1392,12 @@ int cipso_v4_socket_getattr(const struct socket *sock, struct netlbl_lsm_secattr *secattr) { - int ret_val = -ENOMSG; - struct sock *sk; - struct inet_sock *sk_inet; - unsigned char *cipso_ptr; - u32 doi; - struct cipso_v4_doi *doi_def; + int ret_val; - sk = sock->sk; - lock_sock(sk); - sk_inet = inet_sk(sk); - if (sk_inet->opt == NULL || sk_inet->opt->cipso == 0) - goto socket_getattr_return; - cipso_ptr = sk_inet->opt->__data + sk_inet->opt->cipso - - sizeof(struct iphdr); - ret_val = cipso_v4_cache_check(cipso_ptr, cipso_ptr[1], secattr); - if (ret_val == 0) - goto socket_getattr_return; + lock_sock(sock->sk); + ret_val = cipso_v4_sock_getattr(sock->sk, secattr); + release_sock(sock->sk); - doi = ntohl(*(u32 *)&cipso_ptr[2]); - rcu_read_lock(); - doi_def = cipso_v4_doi_getdef(doi); - if (doi_def == NULL) { - rcu_read_unlock(); - goto socket_getattr_return; - } - switch (cipso_ptr[6]) { - case CIPSO_V4_TAG_RBITMAP: - ret_val = cipso_v4_parsetag_rbm(doi_def, - &cipso_ptr[6], - secattr); - break; - } - rcu_read_unlock(); - -socket_getattr_return: - release_sock(sk); return ret_val; }
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index 19b2071..e82a5be 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c
@@ -129,6 +129,12 @@ return ret; } +static int __init tcp_congestion_default(void) +{ + return tcp_set_default_congestion_control(CONFIG_DEFAULT_TCP_CONG); +} + +late_initcall(tcp_congestion_default); ctl_table ipv4_table[] = { {
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c index 7ff2e42..af0aca1 100644 --- a/net/ipv4/tcp_cong.c +++ b/net/ipv4/tcp_cong.c
@@ -48,7 +48,7 @@ printk(KERN_NOTICE "TCP %s already registered\n", ca->name); ret = -EEXIST; } else { - list_add_rcu(&ca->list, &tcp_cong_list); + list_add_tail_rcu(&ca->list, &tcp_cong_list); printk(KERN_INFO "TCP %s registered\n", ca->name); } spin_unlock(&tcp_cong_list_lock);
diff --git a/net/netlabel/Kconfig b/net/netlabel/Kconfig index fe23cb7..9f7121a 100644 --- a/net/netlabel/Kconfig +++ b/net/netlabel/Kconfig
@@ -9,6 +9,9 @@ ---help--- NetLabel provides support for explicit network packet labeling protocols such as CIPSO and RIPSO. For more information see - Documentation/netlabel. + Documentation/netlabel as well as the NetLabel SourceForge project + for configuration tools and additional documentation. + + * http://netlabel.sf.net If you are unsure, say N.
diff --git a/net/netlabel/netlabel_cipso_v4.c b/net/netlabel/netlabel_cipso_v4.c index a4f40ad..4125a55 100644 --- a/net/netlabel/netlabel_cipso_v4.c +++ b/net/netlabel/netlabel_cipso_v4.c
@@ -41,15 +41,37 @@ #include "netlabel_user.h" #include "netlabel_cipso_v4.h" +/* Argument struct for cipso_v4_doi_walk() */ +struct netlbl_cipsov4_doiwalk_arg { + struct netlink_callback *nl_cb; + struct sk_buff *skb; + u32 seq; +}; + /* NetLabel Generic NETLINK CIPSOv4 family */ static struct genl_family netlbl_cipsov4_gnl_family = { .id = GENL_ID_GENERATE, .hdrsize = 0, .name = NETLBL_NLTYPE_CIPSOV4_NAME, .version = NETLBL_PROTO_VERSION, - .maxattr = 0, + .maxattr = NLBL_CIPSOV4_A_MAX, }; +/* NetLabel Netlink attribute policy */ +static struct nla_policy netlbl_cipsov4_genl_policy[NLBL_CIPSOV4_A_MAX + 1] = { + [NLBL_CIPSOV4_A_DOI] = { .type = NLA_U32 }, + [NLBL_CIPSOV4_A_MTYPE] = { .type = NLA_U32 }, + [NLBL_CIPSOV4_A_TAG] = { .type = NLA_U8 }, + [NLBL_CIPSOV4_A_TAGLST] = { .type = NLA_NESTED }, + [NLBL_CIPSOV4_A_MLSLVLLOC] = { .type = NLA_U32 }, + [NLBL_CIPSOV4_A_MLSLVLREM] = { .type = NLA_U32 }, + [NLBL_CIPSOV4_A_MLSLVL] = { .type = NLA_NESTED }, + [NLBL_CIPSOV4_A_MLSLVLLST] = { .type = NLA_NESTED }, + [NLBL_CIPSOV4_A_MLSCATLOC] = { .type = NLA_U32 }, + [NLBL_CIPSOV4_A_MLSCATREM] = { .type = NLA_U32 }, + [NLBL_CIPSOV4_A_MLSCAT] = { .type = NLA_NESTED }, + [NLBL_CIPSOV4_A_MLSCATLST] = { .type = NLA_NESTED }, +}; /* * Helper Functions @@ -81,6 +103,41 @@ kfree(ptr); } +/** + * netlbl_cipsov4_add_common - Parse the common sections of a ADD message + * @info: the Generic NETLINK info block + * @doi_def: the CIPSO V4 DOI definition + * + * Description: + * Parse the common sections of a ADD message and fill in the related values + * in @doi_def. Returns zero on success, negative values on failure. + * + */ +static int netlbl_cipsov4_add_common(struct genl_info *info, + struct cipso_v4_doi *doi_def) +{ + struct nlattr *nla; + int nla_rem; + u32 iter = 0; + + doi_def->doi = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_DOI]); + + if (nla_validate_nested(info->attrs[NLBL_CIPSOV4_A_TAGLST], + NLBL_CIPSOV4_A_MAX, + netlbl_cipsov4_genl_policy) != 0) + return -EINVAL; + + nla_for_each_nested(nla, info->attrs[NLBL_CIPSOV4_A_TAGLST], nla_rem) + if (nla->nla_type == NLBL_CIPSOV4_A_TAG) { + if (iter > CIPSO_V4_TAG_MAXCNT) + return -EINVAL; + doi_def->tags[iter++] = nla_get_u8(nla); + } + if (iter < CIPSO_V4_TAG_MAXCNT) + doi_def->tags[iter] = CIPSO_V4_TAG_INVALID; + + return 0; +} /* * NetLabel Command Handlers @@ -88,9 +145,7 @@ /** * netlbl_cipsov4_add_std - Adds a CIPSO V4 DOI definition - * @doi: the DOI value - * @msg: the ADD message data - * @msg_size: the size of the ADD message buffer + * @info: the Generic NETLINK info block * * Description: * Create a new CIPSO_V4_MAP_STD DOI definition based on the given ADD message @@ -98,29 +153,28 @@ * error. * */ -static int netlbl_cipsov4_add_std(u32 doi, struct nlattr *msg, size_t msg_size) +static int netlbl_cipsov4_add_std(struct genl_info *info) { int ret_val = -EINVAL; - int msg_len = msg_size; - u32 num_tags; - u32 num_lvls; - u32 num_cats; struct cipso_v4_doi *doi_def = NULL; - u32 iter; - u32 tmp_val_a; - u32 tmp_val_b; + struct nlattr *nla_a; + struct nlattr *nla_b; + int nla_a_rem; + int nla_b_rem; - if (msg_len < NETLBL_LEN_U32) - goto add_std_failure; - num_tags = netlbl_getinc_u32(&msg, &msg_len); - if (num_tags == 0 || num_tags > CIPSO_V4_TAG_MAXCNT) - goto add_std_failure; + if (!info->attrs[NLBL_CIPSOV4_A_DOI] || + !info->attrs[NLBL_CIPSOV4_A_TAGLST] || + !info->attrs[NLBL_CIPSOV4_A_MLSLVLLST]) + return -EINVAL; + + if (nla_validate_nested(info->attrs[NLBL_CIPSOV4_A_MLSLVLLST], + NLBL_CIPSOV4_A_MAX, + netlbl_cipsov4_genl_policy) != 0) + return -EINVAL; doi_def = kmalloc(sizeof(*doi_def), GFP_KERNEL); - if (doi_def == NULL) { - ret_val = -ENOMEM; - goto add_std_failure; - } + if (doi_def == NULL) + return -ENOMEM; doi_def->map.std = kzalloc(sizeof(*doi_def->map.std), GFP_KERNEL); if (doi_def->map.std == NULL) { ret_val = -ENOMEM; @@ -128,28 +182,32 @@ } doi_def->type = CIPSO_V4_MAP_STD; - for (iter = 0; iter < num_tags; iter++) { - if (msg_len < NETLBL_LEN_U8) - goto add_std_failure; - doi_def->tags[iter] = netlbl_getinc_u8(&msg, &msg_len); - switch (doi_def->tags[iter]) { - case CIPSO_V4_TAG_RBITMAP: - break; - default: - goto add_std_failure; + ret_val = netlbl_cipsov4_add_common(info, doi_def); + if (ret_val != 0) + goto add_std_failure; + + nla_for_each_nested(nla_a, + info->attrs[NLBL_CIPSOV4_A_MLSLVLLST], + nla_a_rem) + if (nla_a->nla_type == NLBL_CIPSOV4_A_MLSLVL) { + nla_for_each_nested(nla_b, nla_a, nla_b_rem) + switch (nla_b->nla_type) { + case NLBL_CIPSOV4_A_MLSLVLLOC: + if (nla_get_u32(nla_b) >= + doi_def->map.std->lvl.local_size) + doi_def->map.std->lvl.local_size = + nla_get_u32(nla_b) + 1; + break; + case NLBL_CIPSOV4_A_MLSLVLREM: + if (nla_get_u32(nla_b) >= + doi_def->map.std->lvl.cipso_size) + doi_def->map.std->lvl.cipso_size = + nla_get_u32(nla_b) + 1; + break; + } } - } - if (iter < CIPSO_V4_TAG_MAXCNT) - doi_def->tags[iter] = CIPSO_V4_TAG_INVALID; - - if (msg_len < 6 * NETLBL_LEN_U32) - goto add_std_failure; - - num_lvls = netlbl_getinc_u32(&msg, &msg_len); - if (num_lvls == 0) - goto add_std_failure; - doi_def->map.std->lvl.local_size = netlbl_getinc_u32(&msg, &msg_len); - if (doi_def->map.std->lvl.local_size > CIPSO_V4_MAX_LOC_LVLS) + if (doi_def->map.std->lvl.local_size > CIPSO_V4_MAX_LOC_LVLS || + doi_def->map.std->lvl.cipso_size > CIPSO_V4_MAX_REM_LVLS) goto add_std_failure; doi_def->map.std->lvl.local = kcalloc(doi_def->map.std->lvl.local_size, sizeof(u32), @@ -158,9 +216,6 @@ ret_val = -ENOMEM; goto add_std_failure; } - doi_def->map.std->lvl.cipso_size = netlbl_getinc_u8(&msg, &msg_len); - if (doi_def->map.std->lvl.cipso_size > CIPSO_V4_MAX_REM_LVLS) - goto add_std_failure; doi_def->map.std->lvl.cipso = kcalloc(doi_def->map.std->lvl.cipso_size, sizeof(u32), GFP_KERNEL); @@ -168,68 +223,101 @@ ret_val = -ENOMEM; goto add_std_failure; } + nla_for_each_nested(nla_a, + info->attrs[NLBL_CIPSOV4_A_MLSLVLLST], + nla_a_rem) + if (nla_a->nla_type == NLBL_CIPSOV4_A_MLSLVL) { + struct nlattr *lvl_loc; + struct nlattr *lvl_rem; - num_cats = netlbl_getinc_u32(&msg, &msg_len); - doi_def->map.std->cat.local_size = netlbl_getinc_u32(&msg, &msg_len); - if (doi_def->map.std->cat.local_size > CIPSO_V4_MAX_LOC_CATS) - goto add_std_failure; - doi_def->map.std->cat.local = kcalloc(doi_def->map.std->cat.local_size, - sizeof(u32), - GFP_KERNEL); - if (doi_def->map.std->cat.local == NULL) { - ret_val = -ENOMEM; - goto add_std_failure; - } - doi_def->map.std->cat.cipso_size = netlbl_getinc_u16(&msg, &msg_len); - if (doi_def->map.std->cat.cipso_size > CIPSO_V4_MAX_REM_CATS) - goto add_std_failure; - doi_def->map.std->cat.cipso = kcalloc(doi_def->map.std->cat.cipso_size, - sizeof(u32), - GFP_KERNEL); - if (doi_def->map.std->cat.cipso == NULL) { - ret_val = -ENOMEM; - goto add_std_failure; - } + if (nla_validate_nested(nla_a, + NLBL_CIPSOV4_A_MAX, + netlbl_cipsov4_genl_policy) != 0) + goto add_std_failure; - if (msg_len < - num_lvls * (NETLBL_LEN_U32 + NETLBL_LEN_U8) + - num_cats * (NETLBL_LEN_U32 + NETLBL_LEN_U16)) - goto add_std_failure; + lvl_loc = nla_find_nested(nla_a, + NLBL_CIPSOV4_A_MLSLVLLOC); + lvl_rem = nla_find_nested(nla_a, + NLBL_CIPSOV4_A_MLSLVLREM); + if (lvl_loc == NULL || lvl_rem == NULL) + goto add_std_failure; + doi_def->map.std->lvl.local[nla_get_u32(lvl_loc)] = + nla_get_u32(lvl_rem); + doi_def->map.std->lvl.cipso[nla_get_u32(lvl_rem)] = + nla_get_u32(lvl_loc); + } - for (iter = 0; iter < doi_def->map.std->lvl.cipso_size; iter++) - doi_def->map.std->lvl.cipso[iter] = CIPSO_V4_INV_LVL; - for (iter = 0; iter < doi_def->map.std->lvl.local_size; iter++) - doi_def->map.std->lvl.local[iter] = CIPSO_V4_INV_LVL; - for (iter = 0; iter < doi_def->map.std->cat.cipso_size; iter++) - doi_def->map.std->cat.cipso[iter] = CIPSO_V4_INV_CAT; - for (iter = 0; iter < doi_def->map.std->cat.local_size; iter++) - doi_def->map.std->cat.local[iter] = CIPSO_V4_INV_CAT; - - for (iter = 0; iter < num_lvls; iter++) { - tmp_val_a = netlbl_getinc_u32(&msg, &msg_len); - tmp_val_b = netlbl_getinc_u8(&msg, &msg_len); - - if (tmp_val_a >= doi_def->map.std->lvl.local_size || - tmp_val_b >= doi_def->map.std->lvl.cipso_size) + if (info->attrs[NLBL_CIPSOV4_A_MLSCATLST]) { + if (nla_validate_nested(info->attrs[NLBL_CIPSOV4_A_MLSCATLST], + NLBL_CIPSOV4_A_MAX, + netlbl_cipsov4_genl_policy) != 0) goto add_std_failure; - doi_def->map.std->lvl.cipso[tmp_val_b] = tmp_val_a; - doi_def->map.std->lvl.local[tmp_val_a] = tmp_val_b; - } - - for (iter = 0; iter < num_cats; iter++) { - tmp_val_a = netlbl_getinc_u32(&msg, &msg_len); - tmp_val_b = netlbl_getinc_u16(&msg, &msg_len); - - if (tmp_val_a >= doi_def->map.std->cat.local_size || - tmp_val_b >= doi_def->map.std->cat.cipso_size) + nla_for_each_nested(nla_a, + info->attrs[NLBL_CIPSOV4_A_MLSCATLST], + nla_a_rem) + if (nla_a->nla_type == NLBL_CIPSOV4_A_MLSCAT) { + if (nla_validate_nested(nla_a, + NLBL_CIPSOV4_A_MAX, + netlbl_cipsov4_genl_policy) != 0) + goto add_std_failure; + nla_for_each_nested(nla_b, nla_a, nla_b_rem) + switch (nla_b->nla_type) { + case NLBL_CIPSOV4_A_MLSCATLOC: + if (nla_get_u32(nla_b) >= + doi_def->map.std->cat.local_size) + doi_def->map.std->cat.local_size = + nla_get_u32(nla_b) + 1; + break; + case NLBL_CIPSOV4_A_MLSCATREM: + if (nla_get_u32(nla_b) >= + doi_def->map.std->cat.cipso_size) + doi_def->map.std->cat.cipso_size = + nla_get_u32(nla_b) + 1; + break; + } + } + if (doi_def->map.std->cat.local_size > CIPSO_V4_MAX_LOC_CATS || + doi_def->map.std->cat.cipso_size > CIPSO_V4_MAX_REM_CATS) goto add_std_failure; + doi_def->map.std->cat.local = kcalloc( + doi_def->map.std->cat.local_size, + sizeof(u32), + GFP_KERNEL); + if (doi_def->map.std->cat.local == NULL) { + ret_val = -ENOMEM; + goto add_std_failure; + } + doi_def->map.std->cat.cipso = kcalloc( + doi_def->map.std->cat.cipso_size, + sizeof(u32), + GFP_KERNEL); + if (doi_def->map.std->cat.cipso == NULL) { + ret_val = -ENOMEM; + goto add_std_failure; + } + nla_for_each_nested(nla_a, + info->attrs[NLBL_CIPSOV4_A_MLSCATLST], + nla_a_rem) + if (nla_a->nla_type == NLBL_CIPSOV4_A_MLSCAT) { + struct nlattr *cat_loc; + struct nlattr *cat_rem; - doi_def->map.std->cat.cipso[tmp_val_b] = tmp_val_a; - doi_def->map.std->cat.local[tmp_val_a] = tmp_val_b; + cat_loc = nla_find_nested(nla_a, + NLBL_CIPSOV4_A_MLSCATLOC); + cat_rem = nla_find_nested(nla_a, + NLBL_CIPSOV4_A_MLSCATREM); + if (cat_loc == NULL || cat_rem == NULL) + goto add_std_failure; + doi_def->map.std->cat.local[ + nla_get_u32(cat_loc)] = + nla_get_u32(cat_rem); + doi_def->map.std->cat.cipso[ + nla_get_u32(cat_rem)] = + nla_get_u32(cat_loc); + } } - doi_def->doi = doi; ret_val = cipso_v4_doi_add(doi_def); if (ret_val != 0) goto add_std_failure; @@ -243,9 +331,7 @@ /** * netlbl_cipsov4_add_pass - Adds a CIPSO V4 DOI definition - * @doi: the DOI value - * @msg: the ADD message data - * @msg_size: the size of the ADD message buffer + * @info: the Generic NETLINK info block * * Description: * Create a new CIPSO_V4_MAP_PASS DOI definition based on the given ADD message @@ -253,52 +339,31 @@ * error. * */ -static int netlbl_cipsov4_add_pass(u32 doi, - struct nlattr *msg, - size_t msg_size) +static int netlbl_cipsov4_add_pass(struct genl_info *info) { - int ret_val = -EINVAL; - int msg_len = msg_size; - u32 num_tags; + int ret_val; struct cipso_v4_doi *doi_def = NULL; - u32 iter; - if (msg_len < NETLBL_LEN_U32) - goto add_pass_failure; - num_tags = netlbl_getinc_u32(&msg, &msg_len); - if (num_tags == 0 || num_tags > CIPSO_V4_TAG_MAXCNT) - goto add_pass_failure; + if (!info->attrs[NLBL_CIPSOV4_A_DOI] || + !info->attrs[NLBL_CIPSOV4_A_TAGLST]) + return -EINVAL; doi_def = kmalloc(sizeof(*doi_def), GFP_KERNEL); - if (doi_def == NULL) { - ret_val = -ENOMEM; - goto add_pass_failure; - } + if (doi_def == NULL) + return -ENOMEM; doi_def->type = CIPSO_V4_MAP_PASS; - for (iter = 0; iter < num_tags; iter++) { - if (msg_len < NETLBL_LEN_U8) - goto add_pass_failure; - doi_def->tags[iter] = netlbl_getinc_u8(&msg, &msg_len); - switch (doi_def->tags[iter]) { - case CIPSO_V4_TAG_RBITMAP: - break; - default: - goto add_pass_failure; - } - } - if (iter < CIPSO_V4_TAG_MAXCNT) - doi_def->tags[iter] = CIPSO_V4_TAG_INVALID; + ret_val = netlbl_cipsov4_add_common(info, doi_def); + if (ret_val != 0) + goto add_pass_failure; - doi_def->doi = doi; ret_val = cipso_v4_doi_add(doi_def); if (ret_val != 0) goto add_pass_failure; return 0; add_pass_failure: - if (doi_def) - netlbl_cipsov4_doi_free(&doi_def->rcu); + netlbl_cipsov4_doi_free(&doi_def->rcu); return ret_val; } @@ -316,34 +381,21 @@ { int ret_val = -EINVAL; - u32 doi; u32 map_type; - int msg_len = netlbl_netlink_payload_len(skb); - struct nlattr *msg = netlbl_netlink_payload_data(skb); - ret_val = netlbl_netlink_cap_check(skb, CAP_NET_ADMIN); - if (ret_val != 0) - goto add_return; + if (!info->attrs[NLBL_CIPSOV4_A_MTYPE]) + return -EINVAL; - if (msg_len < 2 * NETLBL_LEN_U32) - goto add_return; - - doi = netlbl_getinc_u32(&msg, &msg_len); - map_type = netlbl_getinc_u32(&msg, &msg_len); + map_type = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_MTYPE]); switch (map_type) { case CIPSO_V4_MAP_STD: - ret_val = netlbl_cipsov4_add_std(doi, msg, msg_len); + ret_val = netlbl_cipsov4_add_std(info); break; case CIPSO_V4_MAP_PASS: - ret_val = netlbl_cipsov4_add_pass(doi, msg, msg_len); + ret_val = netlbl_cipsov4_add_pass(info); break; } -add_return: - netlbl_netlink_send_ack(info, - netlbl_cipsov4_gnl_family.id, - NLBL_CIPSOV4_C_ACK, - -ret_val); return ret_val; } @@ -353,84 +405,239 @@ * @info: the Generic NETLINK info block * * Description: - * Process a user generated LIST message and respond accordingly. Returns - * zero on success and negative values on error. + * Process a user generated LIST message and respond accordingly. While the + * response message generated by the kernel is straightforward, determining + * before hand the size of the buffer to allocate is not (we have to generate + * the message to know the size). In order to keep this function sane what we + * do is allocate a buffer of NLMSG_GOODSIZE and try to fit the response in + * that size, if we fail then we restart with a larger buffer and try again. + * We continue in this manner until we hit a limit of failed attempts then we + * give up and just send an error message. Returns zero on success and + * negative values on error. * */ static int netlbl_cipsov4_list(struct sk_buff *skb, struct genl_info *info) { - int ret_val = -EINVAL; + int ret_val; + struct sk_buff *ans_skb = NULL; + u32 nlsze_mult = 1; + void *data; u32 doi; - struct nlattr *msg = netlbl_netlink_payload_data(skb); - struct sk_buff *ans_skb; + struct nlattr *nla_a; + struct nlattr *nla_b; + struct cipso_v4_doi *doi_def; + u32 iter; - if (netlbl_netlink_payload_len(skb) != NETLBL_LEN_U32) + if (!info->attrs[NLBL_CIPSOV4_A_DOI]) { + ret_val = -EINVAL; goto list_failure; + } - doi = nla_get_u32(msg); - ans_skb = cipso_v4_doi_dump(doi, NLMSG_SPACE(GENL_HDRLEN)); +list_start: + ans_skb = nlmsg_new(NLMSG_GOODSIZE * nlsze_mult, GFP_KERNEL); if (ans_skb == NULL) { ret_val = -ENOMEM; goto list_failure; } - netlbl_netlink_hdr_push(ans_skb, - info->snd_pid, - 0, - netlbl_cipsov4_gnl_family.id, - NLBL_CIPSOV4_C_LIST); + data = netlbl_netlink_hdr_put(ans_skb, + info->snd_pid, + info->snd_seq, + netlbl_cipsov4_gnl_family.id, + 0, + NLBL_CIPSOV4_C_LIST); + if (data == NULL) { + ret_val = -ENOMEM; + goto list_failure; + } - ret_val = netlbl_netlink_snd(ans_skb, info->snd_pid); + doi = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_DOI]); + + rcu_read_lock(); + doi_def = cipso_v4_doi_getdef(doi); + if (doi_def == NULL) { + ret_val = -EINVAL; + goto list_failure; + } + + ret_val = nla_put_u32(ans_skb, NLBL_CIPSOV4_A_MTYPE, doi_def->type); + if (ret_val != 0) + goto list_failure_lock; + + nla_a = nla_nest_start(ans_skb, NLBL_CIPSOV4_A_TAGLST); + if (nla_a == NULL) { + ret_val = -ENOMEM; + goto list_failure_lock; + } + for (iter = 0; + iter < CIPSO_V4_TAG_MAXCNT && + doi_def->tags[iter] != CIPSO_V4_TAG_INVALID; + iter++) { + ret_val = nla_put_u8(ans_skb, + NLBL_CIPSOV4_A_TAG, + doi_def->tags[iter]); + if (ret_val != 0) + goto list_failure_lock; + } + nla_nest_end(ans_skb, nla_a); + + switch (doi_def->type) { + case CIPSO_V4_MAP_STD: + nla_a = nla_nest_start(ans_skb, NLBL_CIPSOV4_A_MLSLVLLST); + if (nla_a == NULL) { + ret_val = -ENOMEM; + goto list_failure_lock; + } + for (iter = 0; + iter < doi_def->map.std->lvl.local_size; + iter++) { + if (doi_def->map.std->lvl.local[iter] == + CIPSO_V4_INV_LVL) + continue; + + nla_b = nla_nest_start(ans_skb, NLBL_CIPSOV4_A_MLSLVL); + if (nla_b == NULL) { + ret_val = -ENOMEM; + goto list_retry; + } + ret_val = nla_put_u32(ans_skb, + NLBL_CIPSOV4_A_MLSLVLLOC, + iter); + if (ret_val != 0) + goto list_retry; + ret_val = nla_put_u32(ans_skb, + NLBL_CIPSOV4_A_MLSLVLREM, + doi_def->map.std->lvl.local[iter]); + if (ret_val != 0) + goto list_retry; + nla_nest_end(ans_skb, nla_b); + } + nla_nest_end(ans_skb, nla_a); + + nla_a = nla_nest_start(ans_skb, NLBL_CIPSOV4_A_MLSCATLST); + if (nla_a == NULL) { + ret_val = -ENOMEM; + goto list_retry; + } + for (iter = 0; + iter < doi_def->map.std->cat.local_size; + iter++) { + if (doi_def->map.std->cat.local[iter] == + CIPSO_V4_INV_CAT) + continue; + + nla_b = nla_nest_start(ans_skb, NLBL_CIPSOV4_A_MLSCAT); + if (nla_b == NULL) { + ret_val = -ENOMEM; + goto list_retry; + } + ret_val = nla_put_u32(ans_skb, + NLBL_CIPSOV4_A_MLSCATLOC, + iter); + if (ret_val != 0) + goto list_retry; + ret_val = nla_put_u32(ans_skb, + NLBL_CIPSOV4_A_MLSCATREM, + doi_def->map.std->cat.local[iter]); + if (ret_val != 0) + goto list_retry; + nla_nest_end(ans_skb, nla_b); + } + nla_nest_end(ans_skb, nla_a); + + break; + } + rcu_read_unlock(); + + genlmsg_end(ans_skb, data); + + ret_val = genlmsg_unicast(ans_skb, info->snd_pid); if (ret_val != 0) goto list_failure; return 0; +list_retry: + /* XXX - this limit is a guesstimate */ + if (nlsze_mult < 4) { + rcu_read_unlock(); + kfree_skb(ans_skb); + nlsze_mult++; + goto list_start; + } +list_failure_lock: + rcu_read_unlock(); list_failure: - netlbl_netlink_send_ack(info, - netlbl_cipsov4_gnl_family.id, - NLBL_CIPSOV4_C_ACK, - -ret_val); + kfree_skb(ans_skb); + return ret_val; +} + +/** + * netlbl_cipsov4_listall_cb - cipso_v4_doi_walk() callback for LISTALL + * @doi_def: the CIPSOv4 DOI definition + * @arg: the netlbl_cipsov4_doiwalk_arg structure + * + * Description: + * This function is designed to be used as a callback to the + * cipso_v4_doi_walk() function for use in generating a response for a LISTALL + * message. Returns the size of the message on success, negative values on + * failure. + * + */ +static int netlbl_cipsov4_listall_cb(struct cipso_v4_doi *doi_def, void *arg) +{ + int ret_val = -ENOMEM; + struct netlbl_cipsov4_doiwalk_arg *cb_arg = arg; + void *data; + + data = netlbl_netlink_hdr_put(cb_arg->skb, + NETLINK_CB(cb_arg->nl_cb->skb).pid, + cb_arg->seq, + netlbl_cipsov4_gnl_family.id, + NLM_F_MULTI, + NLBL_CIPSOV4_C_LISTALL); + if (data == NULL) + goto listall_cb_failure; + + ret_val = nla_put_u32(cb_arg->skb, NLBL_CIPSOV4_A_DOI, doi_def->doi); + if (ret_val != 0) + goto listall_cb_failure; + ret_val = nla_put_u32(cb_arg->skb, + NLBL_CIPSOV4_A_MTYPE, + doi_def->type); + if (ret_val != 0) + goto listall_cb_failure; + + return genlmsg_end(cb_arg->skb, data); + +listall_cb_failure: + genlmsg_cancel(cb_arg->skb, data); return ret_val; } /** * netlbl_cipsov4_listall - Handle a LISTALL message * @skb: the NETLINK buffer - * @info: the Generic NETLINK info block + * @cb: the NETLINK callback * * Description: * Process a user generated LISTALL message and respond accordingly. Returns * zero on success and negative values on error. * */ -static int netlbl_cipsov4_listall(struct sk_buff *skb, struct genl_info *info) +static int netlbl_cipsov4_listall(struct sk_buff *skb, + struct netlink_callback *cb) { - int ret_val = -EINVAL; - struct sk_buff *ans_skb; + struct netlbl_cipsov4_doiwalk_arg cb_arg; + int doi_skip = cb->args[0]; - ans_skb = cipso_v4_doi_dump_all(NLMSG_SPACE(GENL_HDRLEN)); - if (ans_skb == NULL) { - ret_val = -ENOMEM; - goto listall_failure; - } - netlbl_netlink_hdr_push(ans_skb, - info->snd_pid, - 0, - netlbl_cipsov4_gnl_family.id, - NLBL_CIPSOV4_C_LISTALL); + cb_arg.nl_cb = cb; + cb_arg.skb = skb; + cb_arg.seq = cb->nlh->nlmsg_seq; - ret_val = netlbl_netlink_snd(ans_skb, info->snd_pid); - if (ret_val != 0) - goto listall_failure; + cipso_v4_doi_walk(&doi_skip, netlbl_cipsov4_listall_cb, &cb_arg); - return 0; - -listall_failure: - netlbl_netlink_send_ack(info, - netlbl_cipsov4_gnl_family.id, - NLBL_CIPSOV4_C_ACK, - -ret_val); - return ret_val; + cb->args[0] = doi_skip; + return skb->len; } /** @@ -445,27 +652,14 @@ */ static int netlbl_cipsov4_remove(struct sk_buff *skb, struct genl_info *info) { - int ret_val; + int ret_val = -EINVAL; u32 doi; - struct nlattr *msg = netlbl_netlink_payload_data(skb); - ret_val = netlbl_netlink_cap_check(skb, CAP_NET_ADMIN); - if (ret_val != 0) - goto remove_return; - - if (netlbl_netlink_payload_len(skb) != NETLBL_LEN_U32) { - ret_val = -EINVAL; - goto remove_return; + if (info->attrs[NLBL_CIPSOV4_A_DOI]) { + doi = nla_get_u32(info->attrs[NLBL_CIPSOV4_A_DOI]); + ret_val = cipso_v4_doi_remove(doi, netlbl_cipsov4_doi_free); } - doi = nla_get_u32(msg); - ret_val = cipso_v4_doi_remove(doi, netlbl_cipsov4_doi_free); - -remove_return: - netlbl_netlink_send_ack(info, - netlbl_cipsov4_gnl_family.id, - NLBL_CIPSOV4_C_ACK, - -ret_val); return ret_val; } @@ -475,14 +669,16 @@ static struct genl_ops netlbl_cipsov4_genl_c_add = { .cmd = NLBL_CIPSOV4_C_ADD, - .flags = 0, + .flags = GENL_ADMIN_PERM, + .policy = netlbl_cipsov4_genl_policy, .doit = netlbl_cipsov4_add, .dumpit = NULL, }; static struct genl_ops netlbl_cipsov4_genl_c_remove = { .cmd = NLBL_CIPSOV4_C_REMOVE, - .flags = 0, + .flags = GENL_ADMIN_PERM, + .policy = netlbl_cipsov4_genl_policy, .doit = netlbl_cipsov4_remove, .dumpit = NULL, }; @@ -490,6 +686,7 @@ static struct genl_ops netlbl_cipsov4_genl_c_list = { .cmd = NLBL_CIPSOV4_C_LIST, .flags = 0, + .policy = netlbl_cipsov4_genl_policy, .doit = netlbl_cipsov4_list, .dumpit = NULL, }; @@ -497,8 +694,9 @@ static struct genl_ops netlbl_cipsov4_genl_c_listall = { .cmd = NLBL_CIPSOV4_C_LISTALL, .flags = 0, - .doit = netlbl_cipsov4_listall, - .dumpit = NULL, + .policy = netlbl_cipsov4_genl_policy, + .doit = NULL, + .dumpit = netlbl_cipsov4_listall, }; /*
diff --git a/net/netlabel/netlabel_cipso_v4.h b/net/netlabel/netlabel_cipso_v4.h index 4c6ff4b..f03cf9b 100644 --- a/net/netlabel/netlabel_cipso_v4.h +++ b/net/netlabel/netlabel_cipso_v4.h
@@ -34,175 +34,71 @@ #include <net/netlabel.h> /* - * The following NetLabel payloads are supported by the CIPSO subsystem, all - * of which are preceeded by the nlmsghdr struct. - * - * o ACK: - * Sent by the kernel in response to an applications message, applications - * should never send this message. - * - * +----------------------+-----------------------+ - * | seq number (32 bits) | return code (32 bits) | - * +----------------------+-----------------------+ - * - * seq number: the sequence number of the original message, taken from the - * nlmsghdr structure - * return code: return value, based on errno values + * The following NetLabel payloads are supported by the CIPSO subsystem. * * o ADD: - * Sent by an application to add a new DOI mapping table, after completion - * of the task the kernel should ACK this message. + * Sent by an application to add a new DOI mapping table. * - * +---------------+--------------------+---------------------+ - * | DOI (32 bits) | map type (32 bits) | tag count (32 bits) | ... - * +---------------+--------------------+---------------------+ + * Required attributes: * - * +-----------------+ - * | tag #X (8 bits) | ... repeated - * +-----------------+ + * NLBL_CIPSOV4_A_DOI + * NLBL_CIPSOV4_A_MTYPE + * NLBL_CIPSOV4_A_TAGLST * - * +-------------- ---- --- -- - - * | mapping data - * +-------------- ---- --- -- - + * If using CIPSO_V4_MAP_STD the following attributes are required: * - * DOI: the DOI value - * map type: the mapping table type (defined in the cipso_ipv4.h header - * as CIPSO_V4_MAP_*) - * tag count: the number of tags, must be greater than zero - * tag: the CIPSO tag for the DOI, tags listed first are given - * higher priorirty when sending packets - * mapping data: specific to the map type (see below) + * NLBL_CIPSOV4_A_MLSLVLLST + * NLBL_CIPSOV4_A_MLSCATLST * - * CIPSO_V4_MAP_STD - * - * +------------------+-----------------------+----------------------+ - * | levels (32 bits) | max l level (32 bits) | max r level (8 bits) | ... - * +------------------+-----------------------+----------------------+ - * - * +----------------------+---------------------+---------------------+ - * | categories (32 bits) | max l cat (32 bits) | max r cat (16 bits) | ... - * +----------------------+---------------------+---------------------+ - * - * +--------------------------+-------------------------+ - * | local level #X (32 bits) | CIPSO level #X (8 bits) | ... repeated - * +--------------------------+-------------------------+ - * - * +-----------------------------+-----------------------------+ - * | local category #X (32 bits) | CIPSO category #X (16 bits) | ... repeated - * +-----------------------------+-----------------------------+ - * - * levels: the number of level mappings - * max l level: the highest local level - * max r level: the highest remote/CIPSO level - * categories: the number of category mappings - * max l cat: the highest local category - * max r cat: the highest remote/CIPSO category - * local level: the local part of a level mapping - * CIPSO level: the remote/CIPSO part of a level mapping - * local category: the local part of a category mapping - * CIPSO category: the remote/CIPSO part of a category mapping - * - * CIPSO_V4_MAP_PASS - * - * No mapping data is needed for this map type. + * If using CIPSO_V4_MAP_PASS no additional attributes are required. * * o REMOVE: * Sent by an application to remove a specific DOI mapping table from the - * CIPSO V4 system. The kernel should ACK this message. + * CIPSO V4 system. * - * +---------------+ - * | DOI (32 bits) | - * +---------------+ + * Required attributes: * - * DOI: the DOI value + * NLBL_CIPSOV4_A_DOI * * o LIST: - * Sent by an application to list the details of a DOI definition. The - * kernel should send an ACK on error or a response as indicated below. The - * application generated message format is shown below. + * Sent by an application to list the details of a DOI definition. On + * success the kernel should send a response using the following format. * - * +---------------+ - * | DOI (32 bits) | - * +---------------+ + * Required attributes: * - * DOI: the DOI value + * NLBL_CIPSOV4_A_DOI * * The valid response message format depends on the type of the DOI mapping, - * the known formats are shown below. + * the defined formats are shown below. * - * +--------------------+ - * | map type (32 bits) | ... - * +--------------------+ + * Required attributes: * - * map type: the DOI mapping table type (defined in the cipso_ipv4.h - * header as CIPSO_V4_MAP_*) + * NLBL_CIPSOV4_A_MTYPE + * NLBL_CIPSOV4_A_TAGLST * - * (map type == CIPSO_V4_MAP_STD) + * If using CIPSO_V4_MAP_STD the following attributes are required: * - * +----------------+------------------+----------------------+ - * | tags (32 bits) | levels (32 bits) | categories (32 bits) | ... - * +----------------+------------------+----------------------+ + * NLBL_CIPSOV4_A_MLSLVLLST + * NLBL_CIPSOV4_A_MLSCATLST * - * +-----------------+ - * | tag #X (8 bits) | ... repeated - * +-----------------+ - * - * +--------------------------+-------------------------+ - * | local level #X (32 bits) | CIPSO level #X (8 bits) | ... repeated - * +--------------------------+-------------------------+ - * - * +-----------------------------+-----------------------------+ - * | local category #X (32 bits) | CIPSO category #X (16 bits) | ... repeated - * +-----------------------------+-----------------------------+ - * - * tags: the number of CIPSO tag types - * levels: the number of level mappings - * categories: the number of category mappings - * tag: the tag number, tags listed first are given higher - * priority when sending packets - * local level: the local part of a level mapping - * CIPSO level: the remote/CIPSO part of a level mapping - * local category: the local part of a category mapping - * CIPSO category: the remote/CIPSO part of a category mapping - * - * (map type == CIPSO_V4_MAP_PASS) - * - * +----------------+ - * | tags (32 bits) | ... - * +----------------+ - * - * +-----------------+ - * | tag #X (8 bits) | ... repeated - * +-----------------+ - * - * tags: the number of CIPSO tag types - * tag: the tag number, tags listed first are given higher - * priority when sending packets + * If using CIPSO_V4_MAP_PASS no additional attributes are required. * * o LISTALL: * This message is sent by an application to list the valid DOIs on the - * system. There is no payload and the kernel should respond with an ACK - * or the following message. + * system. When sent by an application there is no payload and the + * NLM_F_DUMP flag should be set. The kernel should respond with a series of + * the following messages. * - * +---------------------+------------------+-----------------------+ - * | DOI count (32 bits) | DOI #X (32 bits) | map type #X (32 bits) | - * +---------------------+------------------+-----------------------+ + * Required attributes: * - * +-----------------------+ - * | map type #X (32 bits) | ... - * +-----------------------+ - * - * DOI count: the number of DOIs - * DOI: the DOI value - * map type: the DOI mapping table type (defined in the cipso_ipv4.h - * header as CIPSO_V4_MAP_*) + * NLBL_CIPSOV4_A_DOI + * NLBL_CIPSOV4_A_MTYPE * */ /* NetLabel CIPSOv4 commands */ enum { NLBL_CIPSOV4_C_UNSPEC, - NLBL_CIPSOV4_C_ACK, NLBL_CIPSOV4_C_ADD, NLBL_CIPSOV4_C_REMOVE, NLBL_CIPSOV4_C_LIST, @@ -211,6 +107,59 @@ }; #define NLBL_CIPSOV4_C_MAX (__NLBL_CIPSOV4_C_MAX - 1) +/* NetLabel CIPSOv4 attributes */ +enum { + NLBL_CIPSOV4_A_UNSPEC, + NLBL_CIPSOV4_A_DOI, + /* (NLA_U32) + * the DOI value */ + NLBL_CIPSOV4_A_MTYPE, + /* (NLA_U32) + * the mapping table type (defined in the cipso_ipv4.h header as + * CIPSO_V4_MAP_*) */ + NLBL_CIPSOV4_A_TAG, + /* (NLA_U8) + * a CIPSO tag type, meant to be used within a NLBL_CIPSOV4_A_TAGLST + * attribute */ + NLBL_CIPSOV4_A_TAGLST, + /* (NLA_NESTED) + * the CIPSO tag list for the DOI, there must be at least one + * NLBL_CIPSOV4_A_TAG attribute, tags listed first are given higher + * priorirty when sending packets */ + NLBL_CIPSOV4_A_MLSLVLLOC, + /* (NLA_U32) + * the local MLS sensitivity level */ + NLBL_CIPSOV4_A_MLSLVLREM, + /* (NLA_U32) + * the remote MLS sensitivity level */ + NLBL_CIPSOV4_A_MLSLVL, + /* (NLA_NESTED) + * a MLS sensitivity level mapping, must contain only one attribute of + * each of the following types: NLBL_CIPSOV4_A_MLSLVLLOC and + * NLBL_CIPSOV4_A_MLSLVLREM */ + NLBL_CIPSOV4_A_MLSLVLLST, + /* (NLA_NESTED) + * the CIPSO level mappings, there must be at least one + * NLBL_CIPSOV4_A_MLSLVL attribute */ + NLBL_CIPSOV4_A_MLSCATLOC, + /* (NLA_U32) + * the local MLS category */ + NLBL_CIPSOV4_A_MLSCATREM, + /* (NLA_U32) + * the remote MLS category */ + NLBL_CIPSOV4_A_MLSCAT, + /* (NLA_NESTED) + * a MLS category mapping, must contain only one attribute of each of + * the following types: NLBL_CIPSOV4_A_MLSCATLOC and + * NLBL_CIPSOV4_A_MLSCATREM */ + NLBL_CIPSOV4_A_MLSCATLST, + /* (NLA_NESTED) + * the CIPSO category mappings, there must be at least one + * NLBL_CIPSOV4_A_MLSCAT attribute */ + __NLBL_CIPSOV4_A_MAX, +}; +#define NLBL_CIPSOV4_A_MAX (__NLBL_CIPSOV4_A_MAX - 1) + /* NetLabel protocol functions */ int netlbl_cipsov4_genl_init(void);
diff --git a/net/netlabel/netlabel_domainhash.c b/net/netlabel/netlabel_domainhash.c index 0489a13..f56d7a8 100644 --- a/net/netlabel/netlabel_domainhash.c +++ b/net/netlabel/netlabel_domainhash.c
@@ -354,160 +354,51 @@ } /** - * netlbl_domhsh_dump - Dump the domain hash table into a sk_buff + * netlbl_domhsh_walk - Iterate through the domain mapping hash table + * @skip_bkt: the number of buckets to skip at the start + * @skip_chain: the number of entries to skip in the first iterated bucket + * @callback: callback for each entry + * @cb_arg: argument for the callback function * * Description: - * Dump the domain hash table into a buffer suitable for returning to an - * application in response to a NetLabel management DOMAIN message. This - * function may fail if another process is growing the hash table at the same - * time. The returned sk_buff has room at the front of the sk_buff for - * @headroom bytes. See netlabel.h for the DOMAIN message format. Returns a - * pointer to a sk_buff on success, NULL on error. + * Interate over the domain mapping hash table, skipping the first @skip_bkt + * buckets and @skip_chain entries. For each entry in the table call + * @callback, if @callback returns a negative value stop 'walking' through the + * table and return. Updates the values in @skip_bkt and @skip_chain on + * return. Returns zero on succcess, negative values on failure. * */ -struct sk_buff *netlbl_domhsh_dump(size_t headroom) +int netlbl_domhsh_walk(u32 *skip_bkt, + u32 *skip_chain, + int (*callback) (struct netlbl_dom_map *entry, void *arg), + void *cb_arg) { - struct sk_buff *skb = NULL; - ssize_t buf_len; - u32 bkt_iter; - u32 dom_cnt = 0; - struct netlbl_domhsh_tbl *hsh_tbl; - struct netlbl_dom_map *list_iter; - ssize_t tmp_len; + int ret_val = -ENOENT; + u32 iter_bkt; + struct netlbl_dom_map *iter_entry; + u32 chain_cnt = 0; - buf_len = NETLBL_LEN_U32; rcu_read_lock(); - hsh_tbl = rcu_dereference(netlbl_domhsh); - for (bkt_iter = 0; bkt_iter < hsh_tbl->size; bkt_iter++) - list_for_each_entry_rcu(list_iter, - &hsh_tbl->tbl[bkt_iter], list) { - buf_len += NETLBL_LEN_U32 + - nla_total_size(strlen(list_iter->domain) + 1); - switch (list_iter->type) { - case NETLBL_NLTYPE_UNLABELED: - break; - case NETLBL_NLTYPE_CIPSOV4: - buf_len += 2 * NETLBL_LEN_U32; - break; + for (iter_bkt = *skip_bkt; + iter_bkt < rcu_dereference(netlbl_domhsh)->size; + iter_bkt++, chain_cnt = 0) { + list_for_each_entry_rcu(iter_entry, + &netlbl_domhsh->tbl[iter_bkt], + list) + if (iter_entry->valid) { + if (chain_cnt++ < *skip_chain) + continue; + ret_val = callback(iter_entry, cb_arg); + if (ret_val < 0) { + chain_cnt--; + goto walk_return; + } } - dom_cnt++; - } + } - skb = netlbl_netlink_alloc_skb(headroom, buf_len, GFP_ATOMIC); - if (skb == NULL) - goto dump_failure; - - if (nla_put_u32(skb, NLA_U32, dom_cnt) != 0) - goto dump_failure; - buf_len -= NETLBL_LEN_U32; - hsh_tbl = rcu_dereference(netlbl_domhsh); - for (bkt_iter = 0; bkt_iter < hsh_tbl->size; bkt_iter++) - list_for_each_entry_rcu(list_iter, - &hsh_tbl->tbl[bkt_iter], list) { - tmp_len = nla_total_size(strlen(list_iter->domain) + - 1); - if (buf_len < NETLBL_LEN_U32 + tmp_len) - goto dump_failure; - if (nla_put_string(skb, - NLA_STRING, - list_iter->domain) != 0) - goto dump_failure; - if (nla_put_u32(skb, NLA_U32, list_iter->type) != 0) - goto dump_failure; - buf_len -= NETLBL_LEN_U32 + tmp_len; - switch (list_iter->type) { - case NETLBL_NLTYPE_UNLABELED: - break; - case NETLBL_NLTYPE_CIPSOV4: - if (buf_len < 2 * NETLBL_LEN_U32) - goto dump_failure; - if (nla_put_u32(skb, - NLA_U32, - list_iter->type_def.cipsov4->type) != 0) - goto dump_failure; - if (nla_put_u32(skb, - NLA_U32, - list_iter->type_def.cipsov4->doi) != 0) - goto dump_failure; - buf_len -= 2 * NETLBL_LEN_U32; - break; - } - } +walk_return: rcu_read_unlock(); - - return skb; - -dump_failure: - rcu_read_unlock(); - kfree_skb(skb); - return NULL; -} - -/** - * netlbl_domhsh_dump_default - Dump the default domain mapping into a sk_buff - * - * Description: - * Dump the default domain mapping into a buffer suitable for returning to an - * application in response to a NetLabel management DEFDOMAIN message. This - * function may fail if another process is changing the default domain mapping - * at the same time. The returned sk_buff has room at the front of the - * skb_buff for @headroom bytes. See netlabel.h for the DEFDOMAIN message - * format. Returns a pointer to a sk_buff on success, NULL on error. - * - */ -struct sk_buff *netlbl_domhsh_dump_default(size_t headroom) -{ - struct sk_buff *skb; - ssize_t buf_len; - struct netlbl_dom_map *entry; - - buf_len = NETLBL_LEN_U32; - rcu_read_lock(); - entry = rcu_dereference(netlbl_domhsh_def); - if (entry != NULL) - switch (entry->type) { - case NETLBL_NLTYPE_UNLABELED: - break; - case NETLBL_NLTYPE_CIPSOV4: - buf_len += 2 * NETLBL_LEN_U32; - break; - } - - skb = netlbl_netlink_alloc_skb(headroom, buf_len, GFP_ATOMIC); - if (skb == NULL) - goto dump_default_failure; - - if (entry != rcu_dereference(netlbl_domhsh_def)) - goto dump_default_failure; - if (entry != NULL) { - if (nla_put_u32(skb, NLA_U32, entry->type) != 0) - goto dump_default_failure; - buf_len -= NETLBL_LEN_U32; - switch (entry->type) { - case NETLBL_NLTYPE_UNLABELED: - break; - case NETLBL_NLTYPE_CIPSOV4: - if (buf_len < 2 * NETLBL_LEN_U32) - goto dump_default_failure; - if (nla_put_u32(skb, - NLA_U32, - entry->type_def.cipsov4->type) != 0) - goto dump_default_failure; - if (nla_put_u32(skb, - NLA_U32, - entry->type_def.cipsov4->doi) != 0) - goto dump_default_failure; - buf_len -= 2 * NETLBL_LEN_U32; - break; - } - } else - nla_put_u32(skb, NLA_U32, NETLBL_NLTYPE_NONE); - rcu_read_unlock(); - - return skb; - -dump_default_failure: - rcu_read_unlock(); - kfree_skb(skb); - return NULL; + *skip_bkt = iter_bkt; + *skip_chain = chain_cnt; + return ret_val; }
diff --git a/net/netlabel/netlabel_domainhash.h b/net/netlabel/netlabel_domainhash.h index 99a2287..02af72a 100644 --- a/net/netlabel/netlabel_domainhash.h +++ b/net/netlabel/netlabel_domainhash.h
@@ -61,7 +61,9 @@ int netlbl_domhsh_add_default(struct netlbl_dom_map *entry); int netlbl_domhsh_remove_default(void); struct netlbl_dom_map *netlbl_domhsh_getentry(const char *domain); -struct sk_buff *netlbl_domhsh_dump(size_t headroom); -struct sk_buff *netlbl_domhsh_dump_default(size_t headroom); +int netlbl_domhsh_walk(u32 *skip_bkt, + u32 *skip_chain, + int (*callback) (struct netlbl_dom_map *entry, void *arg), + void *cb_arg); #endif
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c index 0fd8aaa..54fb7de 100644 --- a/net/netlabel/netlabel_kapi.c +++ b/net/netlabel/netlabel_kapi.c
@@ -85,6 +85,29 @@ } /** + * netlbl_sock_getattr - Determine the security attributes of a sock + * @sk: the sock + * @secattr: the security attributes + * + * Description: + * Examines the given sock to see any NetLabel style labeling has been + * applied to the sock, if so it parses the socket label and returns the + * security attributes in @secattr. Returns zero on success, negative values + * on failure. + * + */ +int netlbl_sock_getattr(struct sock *sk, struct netlbl_lsm_secattr *secattr) +{ + int ret_val; + + ret_val = cipso_v4_sock_getattr(sk, secattr); + if (ret_val == 0) + return 0; + + return netlbl_unlabel_getattr(secattr); +} + +/** * netlbl_socket_getattr - Determine the security attributes of a socket * @sock: the socket * @secattr: the security attributes
diff --git a/net/netlabel/netlabel_mgmt.c b/net/netlabel/netlabel_mgmt.c index 85bc11a..8626c9f 100644 --- a/net/netlabel/netlabel_mgmt.c +++ b/net/netlabel/netlabel_mgmt.c
@@ -42,15 +42,29 @@ #include "netlabel_user.h" #include "netlabel_mgmt.h" +/* Argument struct for netlbl_domhsh_walk() */ +struct netlbl_domhsh_walk_arg { + struct netlink_callback *nl_cb; + struct sk_buff *skb; + u32 seq; +}; + /* NetLabel Generic NETLINK CIPSOv4 family */ static struct genl_family netlbl_mgmt_gnl_family = { .id = GENL_ID_GENERATE, .hdrsize = 0, .name = NETLBL_NLTYPE_MGMT_NAME, .version = NETLBL_PROTO_VERSION, - .maxattr = 0, + .maxattr = NLBL_MGMT_A_MAX, }; +/* NetLabel Netlink attribute policy */ +static struct nla_policy netlbl_mgmt_genl_policy[NLBL_MGMT_A_MAX + 1] = { + [NLBL_MGMT_A_DOMAIN] = { .type = NLA_NUL_STRING }, + [NLBL_MGMT_A_PROTOCOL] = { .type = NLA_U32 }, + [NLBL_MGMT_A_VERSION] = { .type = NLA_U32 }, + [NLBL_MGMT_A_CV4DOI] = { .type = NLA_U32 }, +}; /* * NetLabel Command Handlers @@ -70,97 +84,62 @@ static int netlbl_mgmt_add(struct sk_buff *skb, struct genl_info *info) { int ret_val = -EINVAL; - struct nlattr *msg_ptr = netlbl_netlink_payload_data(skb); - int msg_len = netlbl_netlink_payload_len(skb); - u32 count; struct netlbl_dom_map *entry = NULL; - u32 iter; + size_t tmp_size; u32 tmp_val; - int tmp_size; - ret_val = netlbl_netlink_cap_check(skb, CAP_NET_ADMIN); + if (!info->attrs[NLBL_MGMT_A_DOMAIN] || + !info->attrs[NLBL_MGMT_A_PROTOCOL]) + goto add_failure; + + entry = kzalloc(sizeof(*entry), GFP_KERNEL); + if (entry == NULL) { + ret_val = -ENOMEM; + goto add_failure; + } + tmp_size = nla_len(info->attrs[NLBL_MGMT_A_DOMAIN]); + entry->domain = kmalloc(tmp_size, GFP_KERNEL); + if (entry->domain == NULL) { + ret_val = -ENOMEM; + goto add_failure; + } + entry->type = nla_get_u32(info->attrs[NLBL_MGMT_A_PROTOCOL]); + nla_strlcpy(entry->domain, info->attrs[NLBL_MGMT_A_DOMAIN], tmp_size); + + switch (entry->type) { + case NETLBL_NLTYPE_UNLABELED: + ret_val = netlbl_domhsh_add(entry); + break; + case NETLBL_NLTYPE_CIPSOV4: + if (!info->attrs[NLBL_MGMT_A_CV4DOI]) + goto add_failure; + + tmp_val = nla_get_u32(info->attrs[NLBL_MGMT_A_CV4DOI]); + /* We should be holding a rcu_read_lock() here while we hold + * the result but since the entry will always be deleted when + * the CIPSO DOI is deleted we aren't going to keep the + * lock. */ + rcu_read_lock(); + entry->type_def.cipsov4 = cipso_v4_doi_getdef(tmp_val); + if (entry->type_def.cipsov4 == NULL) { + rcu_read_unlock(); + goto add_failure; + } + ret_val = netlbl_domhsh_add(entry); + rcu_read_unlock(); + break; + default: + goto add_failure; + } if (ret_val != 0) goto add_failure; - if (msg_len < NETLBL_LEN_U32) - goto add_failure; - count = netlbl_getinc_u32(&msg_ptr, &msg_len); - - for (iter = 0; iter < count && msg_len > 0; iter++, entry = NULL) { - if (msg_len <= 0) { - ret_val = -EINVAL; - goto add_failure; - } - entry = kzalloc(sizeof(*entry), GFP_KERNEL); - if (entry == NULL) { - ret_val = -ENOMEM; - goto add_failure; - } - tmp_size = nla_len(msg_ptr); - if (tmp_size <= 0 || tmp_size > msg_len) { - ret_val = -EINVAL; - goto add_failure; - } - entry->domain = kmalloc(tmp_size, GFP_KERNEL); - if (entry->domain == NULL) { - ret_val = -ENOMEM; - goto add_failure; - } - nla_strlcpy(entry->domain, msg_ptr, tmp_size); - entry->domain[tmp_size - 1] = '\0'; - msg_ptr = nla_next(msg_ptr, &msg_len); - - if (msg_len < NETLBL_LEN_U32) { - ret_val = -EINVAL; - goto add_failure; - } - tmp_val = netlbl_getinc_u32(&msg_ptr, &msg_len); - entry->type = tmp_val; - switch (tmp_val) { - case NETLBL_NLTYPE_UNLABELED: - ret_val = netlbl_domhsh_add(entry); - break; - case NETLBL_NLTYPE_CIPSOV4: - if (msg_len < NETLBL_LEN_U32) { - ret_val = -EINVAL; - goto add_failure; - } - tmp_val = netlbl_getinc_u32(&msg_ptr, &msg_len); - /* We should be holding a rcu_read_lock() here - * while we hold the result but since the entry - * will always be deleted when the CIPSO DOI - * is deleted we aren't going to keep the lock. */ - rcu_read_lock(); - entry->type_def.cipsov4 = cipso_v4_doi_getdef(tmp_val); - if (entry->type_def.cipsov4 == NULL) { - rcu_read_unlock(); - ret_val = -EINVAL; - goto add_failure; - } - ret_val = netlbl_domhsh_add(entry); - rcu_read_unlock(); - break; - default: - ret_val = -EINVAL; - } - if (ret_val != 0) - goto add_failure; - } - - netlbl_netlink_send_ack(info, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_ACK, - NETLBL_E_OK); return 0; add_failure: if (entry) kfree(entry->domain); kfree(entry); - netlbl_netlink_send_ack(info, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_ACK, - -ret_val); return ret_val; } @@ -176,87 +155,98 @@ */ static int netlbl_mgmt_remove(struct sk_buff *skb, struct genl_info *info) { - int ret_val = -EINVAL; - struct nlattr *msg_ptr = netlbl_netlink_payload_data(skb); - int msg_len = netlbl_netlink_payload_len(skb); - u32 count; - u32 iter; - int tmp_size; - unsigned char *domain; + char *domain; - ret_val = netlbl_netlink_cap_check(skb, CAP_NET_ADMIN); + if (!info->attrs[NLBL_MGMT_A_DOMAIN]) + return -EINVAL; + + domain = nla_data(info->attrs[NLBL_MGMT_A_DOMAIN]); + return netlbl_domhsh_remove(domain); +} + +/** + * netlbl_mgmt_listall_cb - netlbl_domhsh_walk() callback for LISTALL + * @entry: the domain mapping hash table entry + * @arg: the netlbl_domhsh_walk_arg structure + * + * Description: + * This function is designed to be used as a callback to the + * netlbl_domhsh_walk() function for use in generating a response for a LISTALL + * message. Returns the size of the message on success, negative values on + * failure. + * + */ +static int netlbl_mgmt_listall_cb(struct netlbl_dom_map *entry, void *arg) +{ + int ret_val = -ENOMEM; + struct netlbl_domhsh_walk_arg *cb_arg = arg; + void *data; + + data = netlbl_netlink_hdr_put(cb_arg->skb, + NETLINK_CB(cb_arg->nl_cb->skb).pid, + cb_arg->seq, + netlbl_mgmt_gnl_family.id, + NLM_F_MULTI, + NLBL_MGMT_C_LISTALL); + if (data == NULL) + goto listall_cb_failure; + + ret_val = nla_put_string(cb_arg->skb, + NLBL_MGMT_A_DOMAIN, + entry->domain); if (ret_val != 0) - goto remove_return; - - if (msg_len < NETLBL_LEN_U32) - goto remove_return; - count = netlbl_getinc_u32(&msg_ptr, &msg_len); - - for (iter = 0; iter < count && msg_len > 0; iter++) { - if (msg_len <= 0) { - ret_val = -EINVAL; - goto remove_return; - } - tmp_size = nla_len(msg_ptr); - domain = nla_data(msg_ptr); - if (tmp_size <= 0 || tmp_size > msg_len || - domain[tmp_size - 1] != '\0') { - ret_val = -EINVAL; - goto remove_return; - } - ret_val = netlbl_domhsh_remove(domain); + goto listall_cb_failure; + ret_val = nla_put_u32(cb_arg->skb, NLBL_MGMT_A_PROTOCOL, entry->type); + if (ret_val != 0) + goto listall_cb_failure; + switch (entry->type) { + case NETLBL_NLTYPE_CIPSOV4: + ret_val = nla_put_u32(cb_arg->skb, + NLBL_MGMT_A_CV4DOI, + entry->type_def.cipsov4->doi); if (ret_val != 0) - goto remove_return; - msg_ptr = nla_next(msg_ptr, &msg_len); + goto listall_cb_failure; + break; } - ret_val = 0; + cb_arg->seq++; + return genlmsg_end(cb_arg->skb, data); -remove_return: - netlbl_netlink_send_ack(info, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_ACK, - -ret_val); +listall_cb_failure: + genlmsg_cancel(cb_arg->skb, data); return ret_val; } /** - * netlbl_mgmt_list - Handle a LIST message + * netlbl_mgmt_listall - Handle a LISTALL message * @skb: the NETLINK buffer - * @info: the Generic NETLINK info block + * @cb: the NETLINK callback * * Description: - * Process a user generated LIST message and dumps the domain hash table in a - * form suitable for use in a kernel generated LIST message. Returns zero on - * success, negative values on failure. + * Process a user generated LISTALL message and dumps the domain hash table in + * a form suitable for use in a kernel generated LISTALL message. Returns zero + * on success, negative values on failure. * */ -static int netlbl_mgmt_list(struct sk_buff *skb, struct genl_info *info) +static int netlbl_mgmt_listall(struct sk_buff *skb, + struct netlink_callback *cb) { - int ret_val = -ENOMEM; - struct sk_buff *ans_skb; + struct netlbl_domhsh_walk_arg cb_arg; + u32 skip_bkt = cb->args[0]; + u32 skip_chain = cb->args[1]; - ans_skb = netlbl_domhsh_dump(NLMSG_SPACE(GENL_HDRLEN)); - if (ans_skb == NULL) - goto list_failure; - netlbl_netlink_hdr_push(ans_skb, - info->snd_pid, - 0, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_LIST); + cb_arg.nl_cb = cb; + cb_arg.skb = skb; + cb_arg.seq = cb->nlh->nlmsg_seq; - ret_val = netlbl_netlink_snd(ans_skb, info->snd_pid); - if (ret_val != 0) - goto list_failure; + netlbl_domhsh_walk(&skip_bkt, + &skip_chain, + netlbl_mgmt_listall_cb, + &cb_arg); - return 0; - -list_failure: - netlbl_netlink_send_ack(info, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_ACK, - -ret_val); - return ret_val; + cb->args[0] = skip_bkt; + cb->args[1] = skip_chain; + return skb->len; } /** @@ -272,68 +262,51 @@ static int netlbl_mgmt_adddef(struct sk_buff *skb, struct genl_info *info) { int ret_val = -EINVAL; - struct nlattr *msg_ptr = netlbl_netlink_payload_data(skb); - int msg_len = netlbl_netlink_payload_len(skb); struct netlbl_dom_map *entry = NULL; u32 tmp_val; - ret_val = netlbl_netlink_cap_check(skb, CAP_NET_ADMIN); - if (ret_val != 0) + if (!info->attrs[NLBL_MGMT_A_PROTOCOL]) goto adddef_failure; - if (msg_len < NETLBL_LEN_U32) - goto adddef_failure; - tmp_val = netlbl_getinc_u32(&msg_ptr, &msg_len); - entry = kzalloc(sizeof(*entry), GFP_KERNEL); if (entry == NULL) { ret_val = -ENOMEM; goto adddef_failure; } + entry->type = nla_get_u32(info->attrs[NLBL_MGMT_A_PROTOCOL]); - entry->type = tmp_val; switch (entry->type) { case NETLBL_NLTYPE_UNLABELED: ret_val = netlbl_domhsh_add_default(entry); break; case NETLBL_NLTYPE_CIPSOV4: - if (msg_len < NETLBL_LEN_U32) { - ret_val = -EINVAL; + if (!info->attrs[NLBL_MGMT_A_CV4DOI]) goto adddef_failure; - } - tmp_val = netlbl_getinc_u32(&msg_ptr, &msg_len); - /* We should be holding a rcu_read_lock here while we - * hold the result but since the entry will always be - * deleted when the CIPSO DOI is deleted we are going - * to skip the lock. */ + + tmp_val = nla_get_u32(info->attrs[NLBL_MGMT_A_CV4DOI]); + /* We should be holding a rcu_read_lock() here while we hold + * the result but since the entry will always be deleted when + * the CIPSO DOI is deleted we aren't going to keep the + * lock. */ rcu_read_lock(); entry->type_def.cipsov4 = cipso_v4_doi_getdef(tmp_val); if (entry->type_def.cipsov4 == NULL) { rcu_read_unlock(); - ret_val = -EINVAL; goto adddef_failure; } ret_val = netlbl_domhsh_add_default(entry); rcu_read_unlock(); break; default: - ret_val = -EINVAL; + goto adddef_failure; } if (ret_val != 0) goto adddef_failure; - netlbl_netlink_send_ack(info, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_ACK, - NETLBL_E_OK); return 0; adddef_failure: kfree(entry); - netlbl_netlink_send_ack(info, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_ACK, - -ret_val); return ret_val; } @@ -349,20 +322,7 @@ */ static int netlbl_mgmt_removedef(struct sk_buff *skb, struct genl_info *info) { - int ret_val; - - ret_val = netlbl_netlink_cap_check(skb, CAP_NET_ADMIN); - if (ret_val != 0) - goto removedef_return; - - ret_val = netlbl_domhsh_remove_default(); - -removedef_return: - netlbl_netlink_send_ack(info, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_ACK, - -ret_val); - return ret_val; + return netlbl_domhsh_remove_default(); } /** @@ -379,88 +339,131 @@ static int netlbl_mgmt_listdef(struct sk_buff *skb, struct genl_info *info) { int ret_val = -ENOMEM; - struct sk_buff *ans_skb; + struct sk_buff *ans_skb = NULL; + void *data; + struct netlbl_dom_map *entry; - ans_skb = netlbl_domhsh_dump_default(NLMSG_SPACE(GENL_HDRLEN)); + ans_skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); if (ans_skb == NULL) + return -ENOMEM; + data = netlbl_netlink_hdr_put(ans_skb, + info->snd_pid, + info->snd_seq, + netlbl_mgmt_gnl_family.id, + 0, + NLBL_MGMT_C_LISTDEF); + if (data == NULL) goto listdef_failure; - netlbl_netlink_hdr_push(ans_skb, - info->snd_pid, - 0, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_LISTDEF); - ret_val = netlbl_netlink_snd(ans_skb, info->snd_pid); + rcu_read_lock(); + entry = netlbl_domhsh_getentry(NULL); + if (entry == NULL) { + ret_val = -ENOENT; + goto listdef_failure_lock; + } + ret_val = nla_put_u32(ans_skb, NLBL_MGMT_A_PROTOCOL, entry->type); + if (ret_val != 0) + goto listdef_failure_lock; + switch (entry->type) { + case NETLBL_NLTYPE_CIPSOV4: + ret_val = nla_put_u32(ans_skb, + NLBL_MGMT_A_CV4DOI, + entry->type_def.cipsov4->doi); + if (ret_val != 0) + goto listdef_failure_lock; + break; + } + rcu_read_unlock(); + + genlmsg_end(ans_skb, data); + + ret_val = genlmsg_unicast(ans_skb, info->snd_pid); if (ret_val != 0) goto listdef_failure; - return 0; +listdef_failure_lock: + rcu_read_unlock(); listdef_failure: - netlbl_netlink_send_ack(info, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_ACK, - -ret_val); + kfree_skb(ans_skb); return ret_val; } /** - * netlbl_mgmt_modules - Handle a MODULES message - * @skb: the NETLINK buffer - * @info: the Generic NETLINK info block + * netlbl_mgmt_protocols_cb - Write an individual PROTOCOL message response + * @skb: the skb to write to + * @seq: the NETLINK sequence number + * @cb: the NETLINK callback + * @protocol: the NetLabel protocol to use in the message * * Description: - * Process a user generated MODULES message and respond accordingly. + * This function is to be used in conjunction with netlbl_mgmt_protocols() to + * answer a application's PROTOCOLS message. Returns the size of the message + * on success, negative values on failure. * */ -static int netlbl_mgmt_modules(struct sk_buff *skb, struct genl_info *info) +static int netlbl_mgmt_protocols_cb(struct sk_buff *skb, + struct netlink_callback *cb, + u32 protocol) { int ret_val = -ENOMEM; - size_t data_size; - u32 mod_count; - struct sk_buff *ans_skb = NULL; + void *data; - /* unlabeled + cipsov4 */ - mod_count = 2; + data = netlbl_netlink_hdr_put(skb, + NETLINK_CB(cb->skb).pid, + cb->nlh->nlmsg_seq, + netlbl_mgmt_gnl_family.id, + NLM_F_MULTI, + NLBL_MGMT_C_PROTOCOLS); + if (data == NULL) + goto protocols_cb_failure; - data_size = GENL_HDRLEN + NETLBL_LEN_U32 + mod_count * NETLBL_LEN_U32; - ans_skb = netlbl_netlink_alloc_skb(0, data_size, GFP_KERNEL); - if (ans_skb == NULL) - goto modules_failure; - - if (netlbl_netlink_hdr_put(ans_skb, - info->snd_pid, - 0, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_MODULES) == NULL) - goto modules_failure; - - ret_val = nla_put_u32(ans_skb, NLA_U32, mod_count); + ret_val = nla_put_u32(skb, NLBL_MGMT_A_PROTOCOL, protocol); if (ret_val != 0) - goto modules_failure; - ret_val = nla_put_u32(ans_skb, NLA_U32, NETLBL_NLTYPE_UNLABELED); - if (ret_val != 0) - goto modules_failure; - ret_val = nla_put_u32(ans_skb, NLA_U32, NETLBL_NLTYPE_CIPSOV4); - if (ret_val != 0) - goto modules_failure; + goto protocols_cb_failure; - ret_val = netlbl_netlink_snd(ans_skb, info->snd_pid); - if (ret_val != 0) - goto modules_failure; + return genlmsg_end(skb, data); - return 0; - -modules_failure: - kfree_skb(ans_skb); - netlbl_netlink_send_ack(info, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_ACK, - -ret_val); +protocols_cb_failure: + genlmsg_cancel(skb, data); return ret_val; } /** + * netlbl_mgmt_protocols - Handle a PROTOCOLS message + * @skb: the NETLINK buffer + * @cb: the NETLINK callback + * + * Description: + * Process a user generated PROTOCOLS message and respond accordingly. + * + */ +static int netlbl_mgmt_protocols(struct sk_buff *skb, + struct netlink_callback *cb) +{ + u32 protos_sent = cb->args[0]; + + if (protos_sent == 0) { + if (netlbl_mgmt_protocols_cb(skb, + cb, + NETLBL_NLTYPE_UNLABELED) < 0) + goto protocols_return; + protos_sent++; + } + if (protos_sent == 1) { + if (netlbl_mgmt_protocols_cb(skb, + cb, + NETLBL_NLTYPE_CIPSOV4) < 0) + goto protocols_return; + protos_sent++; + } + +protocols_return: + cb->args[0] = protos_sent; + return skb->len; +} + +/** * netlbl_mgmt_version - Handle a VERSION message * @skb: the NETLINK buffer * @info: the Generic NETLINK info block @@ -474,35 +477,35 @@ { int ret_val = -ENOMEM; struct sk_buff *ans_skb = NULL; + void *data; - ans_skb = netlbl_netlink_alloc_skb(0, - GENL_HDRLEN + NETLBL_LEN_U32, - GFP_KERNEL); + ans_skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); if (ans_skb == NULL) - goto version_failure; - if (netlbl_netlink_hdr_put(ans_skb, - info->snd_pid, - 0, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_VERSION) == NULL) + return -ENOMEM; + data = netlbl_netlink_hdr_put(ans_skb, + info->snd_pid, + info->snd_seq, + netlbl_mgmt_gnl_family.id, + 0, + NLBL_MGMT_C_VERSION); + if (data == NULL) goto version_failure; - ret_val = nla_put_u32(ans_skb, NLA_U32, NETLBL_PROTO_VERSION); + ret_val = nla_put_u32(ans_skb, + NLBL_MGMT_A_VERSION, + NETLBL_PROTO_VERSION); if (ret_val != 0) goto version_failure; - ret_val = netlbl_netlink_snd(ans_skb, info->snd_pid); + genlmsg_end(ans_skb, data); + + ret_val = genlmsg_unicast(ans_skb, info->snd_pid); if (ret_val != 0) goto version_failure; - return 0; version_failure: kfree_skb(ans_skb); - netlbl_netlink_send_ack(info, - netlbl_mgmt_gnl_family.id, - NLBL_MGMT_C_ACK, - -ret_val); return ret_val; } @@ -513,35 +516,40 @@ static struct genl_ops netlbl_mgmt_genl_c_add = { .cmd = NLBL_MGMT_C_ADD, - .flags = 0, + .flags = GENL_ADMIN_PERM, + .policy = netlbl_mgmt_genl_policy, .doit = netlbl_mgmt_add, .dumpit = NULL, }; static struct genl_ops netlbl_mgmt_genl_c_remove = { .cmd = NLBL_MGMT_C_REMOVE, - .flags = 0, + .flags = GENL_ADMIN_PERM, + .policy = netlbl_mgmt_genl_policy, .doit = netlbl_mgmt_remove, .dumpit = NULL, }; -static struct genl_ops netlbl_mgmt_genl_c_list = { - .cmd = NLBL_MGMT_C_LIST, +static struct genl_ops netlbl_mgmt_genl_c_listall = { + .cmd = NLBL_MGMT_C_LISTALL, .flags = 0, - .doit = netlbl_mgmt_list, - .dumpit = NULL, + .policy = netlbl_mgmt_genl_policy, + .doit = NULL, + .dumpit = netlbl_mgmt_listall, }; static struct genl_ops netlbl_mgmt_genl_c_adddef = { .cmd = NLBL_MGMT_C_ADDDEF, - .flags = 0, + .flags = GENL_ADMIN_PERM, + .policy = netlbl_mgmt_genl_policy, .doit = netlbl_mgmt_adddef, .dumpit = NULL, }; static struct genl_ops netlbl_mgmt_genl_c_removedef = { .cmd = NLBL_MGMT_C_REMOVEDEF, - .flags = 0, + .flags = GENL_ADMIN_PERM, + .policy = netlbl_mgmt_genl_policy, .doit = netlbl_mgmt_removedef, .dumpit = NULL, }; @@ -549,20 +557,23 @@ static struct genl_ops netlbl_mgmt_genl_c_listdef = { .cmd = NLBL_MGMT_C_LISTDEF, .flags = 0, + .policy = netlbl_mgmt_genl_policy, .doit = netlbl_mgmt_listdef, .dumpit = NULL, }; -static struct genl_ops netlbl_mgmt_genl_c_modules = { - .cmd = NLBL_MGMT_C_MODULES, +static struct genl_ops netlbl_mgmt_genl_c_protocols = { + .cmd = NLBL_MGMT_C_PROTOCOLS, .flags = 0, - .doit = netlbl_mgmt_modules, - .dumpit = NULL, + .policy = netlbl_mgmt_genl_policy, + .doit = NULL, + .dumpit = netlbl_mgmt_protocols, }; static struct genl_ops netlbl_mgmt_genl_c_version = { .cmd = NLBL_MGMT_C_VERSION, .flags = 0, + .policy = netlbl_mgmt_genl_policy, .doit = netlbl_mgmt_version, .dumpit = NULL, }; @@ -596,7 +607,7 @@ if (ret_val != 0) return ret_val; ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, - &netlbl_mgmt_genl_c_list); + &netlbl_mgmt_genl_c_listall); if (ret_val != 0) return ret_val; ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, @@ -612,7 +623,7 @@ if (ret_val != 0) return ret_val; ret_val = genl_register_ops(&netlbl_mgmt_gnl_family, - &netlbl_mgmt_genl_c_modules); + &netlbl_mgmt_genl_c_protocols); if (ret_val != 0) return ret_val; ret_val = genl_register_ops(&netlbl_mgmt_gnl_family,
diff --git a/net/netlabel/netlabel_mgmt.h b/net/netlabel/netlabel_mgmt.h index fd6c6ac..3642d3bfc 100644 --- a/net/netlabel/netlabel_mgmt.h +++ b/net/netlabel/netlabel_mgmt.h
@@ -34,212 +34,137 @@ #include <net/netlabel.h> /* - * The following NetLabel payloads are supported by the management interface, - * all of which are preceeded by the nlmsghdr struct. - * - * o ACK: - * Sent by the kernel in response to an applications message, applications - * should never send this message. - * - * +----------------------+-----------------------+ - * | seq number (32 bits) | return code (32 bits) | - * +----------------------+-----------------------+ - * - * seq number: the sequence number of the original message, taken from the - * nlmsghdr structure - * return code: return value, based on errno values + * The following NetLabel payloads are supported by the management interface. * * o ADD: * Sent by an application to add a domain mapping to the NetLabel system. - * The kernel should respond with an ACK. * - * +-------------------+ - * | domains (32 bits) | ... - * +-------------------+ + * Required attributes: * - * domains: the number of domains in the message + * NLBL_MGMT_A_DOMAIN + * NLBL_MGMT_A_PROTOCOL * - * +--------------------------+-------------------------+ - * | domain string (variable) | protocol type (32 bits) | ... - * +--------------------------+-------------------------+ + * If using NETLBL_NLTYPE_CIPSOV4 the following attributes are required: * - * +-------------- ---- --- -- - - * | mapping data ... repeated - * +-------------- ---- --- -- - + * NLBL_MGMT_A_CV4DOI * - * domain string: the domain string, NULL terminated - * protocol type: the protocol type (defined by NETLBL_NLTYPE_*) - * mapping data: specific to the map type (see below) - * - * NETLBL_NLTYPE_UNLABELED - * - * No mapping data for this protocol type. - * - * NETLBL_NLTYPE_CIPSOV4 - * - * +---------------+ - * | doi (32 bits) | - * +---------------+ - * - * doi: the CIPSO DOI value + * If using NETLBL_NLTYPE_UNLABELED no other attributes are required. * * o REMOVE: * Sent by an application to remove a domain mapping from the NetLabel - * system. The kernel should ACK this message. + * system. * - * +-------------------+ - * | domains (32 bits) | ... - * +-------------------+ + * Required attributes: * - * domains: the number of domains in the message + * NLBL_MGMT_A_DOMAIN * - * +--------------------------+ - * | domain string (variable) | ... - * +--------------------------+ - * - * domain string: the domain string, NULL terminated - * - * o LIST: + * o LISTALL: * This message can be sent either from an application or by the kernel in - * response to an application generated LIST message. When sent by an - * application there is no payload. The kernel should respond to a LIST - * message either with a LIST message on success or an ACK message on - * failure. + * response to an application generated LISTALL message. When sent by an + * application there is no payload and the NLM_F_DUMP flag should be set. + * The kernel should respond with a series of the following messages. * - * +-------------------+ - * | domains (32 bits) | ... - * +-------------------+ + * Required attributes: * - * domains: the number of domains in the message + * NLBL_MGMT_A_DOMAIN + * NLBL_MGMT_A_PROTOCOL * - * +--------------------------+ - * | domain string (variable) | ... - * +--------------------------+ + * If using NETLBL_NLTYPE_CIPSOV4 the following attributes are required: * - * +-------------------------+-------------- ---- --- -- - - * | protocol type (32 bits) | mapping data ... repeated - * +-------------------------+-------------- ---- --- -- - + * NLBL_MGMT_A_CV4DOI * - * domain string: the domain string, NULL terminated - * protocol type: the protocol type (defined by NETLBL_NLTYPE_*) - * mapping data: specific to the map type (see below) - * - * NETLBL_NLTYPE_UNLABELED - * - * No mapping data for this protocol type. - * - * NETLBL_NLTYPE_CIPSOV4 - * - * +----------------+---------------+ - * | type (32 bits) | doi (32 bits) | - * +----------------+---------------+ - * - * type: the CIPSO mapping table type (defined in the cipso_ipv4.h header - * as CIPSO_V4_MAP_*) - * doi: the CIPSO DOI value + * If using NETLBL_NLTYPE_UNLABELED no other attributes are required. * * o ADDDEF: * Sent by an application to set the default domain mapping for the NetLabel - * system. The kernel should respond with an ACK. + * system. * - * +-------------------------+-------------- ---- --- -- - - * | protocol type (32 bits) | mapping data ... repeated - * +-------------------------+-------------- ---- --- -- - + * Required attributes: * - * protocol type: the protocol type (defined by NETLBL_NLTYPE_*) - * mapping data: specific to the map type (see below) + * NLBL_MGMT_A_PROTOCOL * - * NETLBL_NLTYPE_UNLABELED + * If using NETLBL_NLTYPE_CIPSOV4 the following attributes are required: * - * No mapping data for this protocol type. + * NLBL_MGMT_A_CV4DOI * - * NETLBL_NLTYPE_CIPSOV4 - * - * +---------------+ - * | doi (32 bits) | - * +---------------+ - * - * doi: the CIPSO DOI value + * If using NETLBL_NLTYPE_UNLABELED no other attributes are required. * * o REMOVEDEF: * Sent by an application to remove the default domain mapping from the - * NetLabel system, there is no payload. The kernel should ACK this message. + * NetLabel system, there is no payload. * * o LISTDEF: * This message can be sent either from an application or by the kernel in * response to an application generated LISTDEF message. When sent by an - * application there is no payload. The kernel should respond to a - * LISTDEF message either with a LISTDEF message on success or an ACK message - * on failure. + * application there is no payload. On success the kernel should send a + * response using the following format. * - * +-------------------------+-------------- ---- --- -- - - * | protocol type (32 bits) | mapping data ... repeated - * +-------------------------+-------------- ---- --- -- - + * Required attributes: * - * protocol type: the protocol type (defined by NETLBL_NLTYPE_*) - * mapping data: specific to the map type (see below) + * NLBL_MGMT_A_PROTOCOL * - * NETLBL_NLTYPE_UNLABELED + * If using NETLBL_NLTYPE_CIPSOV4 the following attributes are required: * - * No mapping data for this protocol type. + * NLBL_MGMT_A_CV4DOI * - * NETLBL_NLTYPE_CIPSOV4 + * If using NETLBL_NLTYPE_UNLABELED no other attributes are required. * - * +----------------+---------------+ - * | type (32 bits) | doi (32 bits) | - * +----------------+---------------+ + * o PROTOCOLS: + * Sent by an application to request a list of configured NetLabel protocols + * in the kernel. When sent by an application there is no payload and the + * NLM_F_DUMP flag should be set. The kernel should respond with a series of + * the following messages. * - * type: the CIPSO mapping table type (defined in the cipso_ipv4.h header - * as CIPSO_V4_MAP_*) - * doi: the CIPSO DOI value + * Required attributes: * - * o MODULES: - * Sent by an application to request a list of configured NetLabel modules - * in the kernel. When sent by an application there is no payload. - * - * +-------------------+ - * | modules (32 bits) | ... - * +-------------------+ - * - * modules: the number of modules in the message, if this is an application - * generated message and the value is zero then return a list of - * the configured modules - * - * +------------------+ - * | module (32 bits) | ... repeated - * +------------------+ - * - * module: the module number as defined by NETLBL_NLTYPE_* + * NLBL_MGMT_A_PROTOCOL * * o VERSION: - * Sent by an application to request the NetLabel version string. When sent - * by an application there is no payload. This message type is also used by - * the kernel to respond to an VERSION request. + * Sent by an application to request the NetLabel version. When sent by an + * application there is no payload. This message type is also used by the + * kernel to respond to an VERSION request. * - * +-------------------+ - * | version (32 bits) | - * +-------------------+ + * Required attributes: * - * version: the protocol version number + * NLBL_MGMT_A_VERSION * */ /* NetLabel Management commands */ enum { NLBL_MGMT_C_UNSPEC, - NLBL_MGMT_C_ACK, NLBL_MGMT_C_ADD, NLBL_MGMT_C_REMOVE, - NLBL_MGMT_C_LIST, + NLBL_MGMT_C_LISTALL, NLBL_MGMT_C_ADDDEF, NLBL_MGMT_C_REMOVEDEF, NLBL_MGMT_C_LISTDEF, - NLBL_MGMT_C_MODULES, + NLBL_MGMT_C_PROTOCOLS, NLBL_MGMT_C_VERSION, __NLBL_MGMT_C_MAX, }; #define NLBL_MGMT_C_MAX (__NLBL_MGMT_C_MAX - 1) +/* NetLabel Management attributes */ +enum { + NLBL_MGMT_A_UNSPEC, + NLBL_MGMT_A_DOMAIN, + /* (NLA_NUL_STRING) + * the NULL terminated LSM domain string */ + NLBL_MGMT_A_PROTOCOL, + /* (NLA_U32) + * the NetLabel protocol type (defined by NETLBL_NLTYPE_*) */ + NLBL_MGMT_A_VERSION, + /* (NLA_U32) + * the NetLabel protocol version number (defined by + * NETLBL_PROTO_VERSION) */ + NLBL_MGMT_A_CV4DOI, + /* (NLA_U32) + * the CIPSOv4 DOI value */ + __NLBL_MGMT_A_MAX, +}; +#define NLBL_MGMT_A_MAX (__NLBL_MGMT_A_MAX - 1) + /* NetLabel protocol functions */ int netlbl_mgmt_genl_init(void);
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c index 785f496..440f5c4 100644 --- a/net/netlabel/netlabel_unlabeled.c +++ b/net/netlabel/netlabel_unlabeled.c
@@ -55,9 +55,13 @@ .hdrsize = 0, .name = NETLBL_NLTYPE_UNLABELED_NAME, .version = NETLBL_PROTO_VERSION, - .maxattr = 0, + .maxattr = NLBL_UNLABEL_A_MAX, }; +/* NetLabel Netlink attribute policy */ +static struct nla_policy netlbl_unlabel_genl_policy[NLBL_UNLABEL_A_MAX + 1] = { + [NLBL_UNLABEL_A_ACPTFLG] = { .type = NLA_U8 }, +}; /* * NetLabel Command Handlers @@ -75,31 +79,18 @@ */ static int netlbl_unlabel_accept(struct sk_buff *skb, struct genl_info *info) { - int ret_val; - struct nlattr *data = netlbl_netlink_payload_data(skb); - u32 value; + int ret_val = -EINVAL; + u8 value; - ret_val = netlbl_netlink_cap_check(skb, CAP_NET_ADMIN); - if (ret_val != 0) - return ret_val; - - if (netlbl_netlink_payload_len(skb) == NETLBL_LEN_U32) { - value = nla_get_u32(data); + if (info->attrs[NLBL_UNLABEL_A_ACPTFLG]) { + value = nla_get_u8(info->attrs[NLBL_UNLABEL_A_ACPTFLG]); if (value == 1 || value == 0) { atomic_set(&netlabel_unlabel_accept_flg, value); - netlbl_netlink_send_ack(info, - netlbl_unlabel_gnl_family.id, - NLBL_UNLABEL_C_ACK, - NETLBL_E_OK); - return 0; + ret_val = 0; } } - netlbl_netlink_send_ack(info, - netlbl_unlabel_gnl_family.id, - NLBL_UNLABEL_C_ACK, - EINVAL); - return -EINVAL; + return ret_val; } /** @@ -114,39 +105,39 @@ */ static int netlbl_unlabel_list(struct sk_buff *skb, struct genl_info *info) { - int ret_val = -ENOMEM; + int ret_val = -EINVAL; struct sk_buff *ans_skb; + void *data; - ans_skb = netlbl_netlink_alloc_skb(0, - GENL_HDRLEN + NETLBL_LEN_U32, - GFP_KERNEL); + ans_skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); if (ans_skb == NULL) goto list_failure; - - if (netlbl_netlink_hdr_put(ans_skb, - info->snd_pid, - 0, - netlbl_unlabel_gnl_family.id, - NLBL_UNLABEL_C_LIST) == NULL) + data = netlbl_netlink_hdr_put(ans_skb, + info->snd_pid, + info->snd_seq, + netlbl_unlabel_gnl_family.id, + 0, + NLBL_UNLABEL_C_LIST); + if (data == NULL) { + ret_val = -ENOMEM; goto list_failure; + } - ret_val = nla_put_u32(ans_skb, - NLA_U32, - atomic_read(&netlabel_unlabel_accept_flg)); + ret_val = nla_put_u8(ans_skb, + NLBL_UNLABEL_A_ACPTFLG, + atomic_read(&netlabel_unlabel_accept_flg)); if (ret_val != 0) goto list_failure; - ret_val = netlbl_netlink_snd(ans_skb, info->snd_pid); + genlmsg_end(ans_skb, data); + + ret_val = genlmsg_unicast(ans_skb, info->snd_pid); if (ret_val != 0) goto list_failure; - return 0; list_failure: - netlbl_netlink_send_ack(info, - netlbl_unlabel_gnl_family.id, - NLBL_UNLABEL_C_ACK, - -ret_val); + kfree(ans_skb); return ret_val; } @@ -157,7 +148,8 @@ static struct genl_ops netlbl_unlabel_genl_c_accept = { .cmd = NLBL_UNLABEL_C_ACCEPT, - .flags = 0, + .flags = GENL_ADMIN_PERM, + .policy = netlbl_unlabel_genl_policy, .doit = netlbl_unlabel_accept, .dumpit = NULL, }; @@ -165,6 +157,7 @@ static struct genl_ops netlbl_unlabel_genl_c_list = { .cmd = NLBL_UNLABEL_C_LIST, .flags = 0, + .policy = netlbl_unlabel_genl_policy, .doit = netlbl_unlabel_list, .dumpit = NULL, }; @@ -218,10 +211,8 @@ */ int netlbl_unlabel_getattr(struct netlbl_lsm_secattr *secattr) { - if (atomic_read(&netlabel_unlabel_accept_flg) == 1) { - memset(secattr, 0, sizeof(*secattr)); - return 0; - } + if (atomic_read(&netlabel_unlabel_accept_flg) == 1) + return netlbl_secattr_init(secattr); return -ENOMSG; }
diff --git a/net/netlabel/netlabel_unlabeled.h b/net/netlabel/netlabel_unlabeled.h index f300e54..c2917fb 100644 --- a/net/netlabel/netlabel_unlabeled.h +++ b/net/netlabel/netlabel_unlabeled.h
@@ -36,56 +36,47 @@ /* * The following NetLabel payloads are supported by the Unlabeled subsystem. * - * o ACK: - * Sent by the kernel in response to an applications message, applications - * should never send this message. - * - * +----------------------+-----------------------+ - * | seq number (32 bits) | return code (32 bits) | - * +----------------------+-----------------------+ - * - * seq number: the sequence number of the original message, taken from the - * nlmsghdr structure - * return code: return value, based on errno values - * * o ACCEPT * This message is sent from an application to specify if the kernel should * allow unlabled packets to pass if they do not match any of the static * mappings defined in the unlabeled module. * - * +-----------------+ - * | allow (32 bits) | - * +-----------------+ + * Required attributes: * - * allow: if true (1) then allow the packets to pass, if false (0) then - * reject the packets + * NLBL_UNLABEL_A_ACPTFLG * * o LIST * This message can be sent either from an application or by the kernel in * response to an application generated LIST message. When sent by an * application there is no payload. The kernel should respond to a LIST - * message either with a LIST message on success or an ACK message on - * failure. + * message with a LIST message on success. * - * +-----------------------+ - * | accept flag (32 bits) | - * +-----------------------+ + * Required attributes: * - * accept flag: if true (1) then unlabeled packets are allowed to pass, - * if false (0) then unlabeled packets are rejected + * NLBL_UNLABEL_A_ACPTFLG * */ /* NetLabel Unlabeled commands */ enum { NLBL_UNLABEL_C_UNSPEC, - NLBL_UNLABEL_C_ACK, NLBL_UNLABEL_C_ACCEPT, NLBL_UNLABEL_C_LIST, __NLBL_UNLABEL_C_MAX, }; #define NLBL_UNLABEL_C_MAX (__NLBL_UNLABEL_C_MAX - 1) +/* NetLabel Unlabeled attributes */ +enum { + NLBL_UNLABEL_A_UNSPEC, + NLBL_UNLABEL_A_ACPTFLG, + /* (NLA_U8) + * if true then unlabeled packets are allowed to pass, else unlabeled + * packets are rejected */ + __NLBL_UNLABEL_A_MAX, +}; +#define NLBL_UNLABEL_A_MAX (__NLBL_UNLABEL_A_MAX - 1) + /* NetLabel protocol functions */ int netlbl_unlabel_genl_init(void);
diff --git a/net/netlabel/netlabel_user.c b/net/netlabel/netlabel_user.c index 73cbe66..eeb7d76 100644 --- a/net/netlabel/netlabel_user.c +++ b/net/netlabel/netlabel_user.c
@@ -74,85 +74,3 @@ return 0; } - -/* - * NetLabel Common Protocol Functions - */ - -/** - * netlbl_netlink_send_ack - Send an ACK message - * @info: the generic NETLINK information - * @genl_family: the generic NETLINK family ID value - * @ack_cmd: the generic NETLINK family ACK command value - * @ret_code: return code to use - * - * Description: - * This function sends an ACK message to the sender of the NETLINK message - * specified by @info. - * - */ -void netlbl_netlink_send_ack(const struct genl_info *info, - u32 genl_family, - u8 ack_cmd, - u32 ret_code) -{ - size_t data_size; - struct sk_buff *skb; - - data_size = GENL_HDRLEN + 2 * NETLBL_LEN_U32; - skb = netlbl_netlink_alloc_skb(0, data_size, GFP_KERNEL); - if (skb == NULL) - return; - - if (netlbl_netlink_hdr_put(skb, - info->snd_pid, - 0, - genl_family, - ack_cmd) == NULL) - goto send_ack_failure; - - if (nla_put_u32(skb, NLA_U32, info->snd_seq) != 0) - goto send_ack_failure; - if (nla_put_u32(skb, NLA_U32, ret_code) != 0) - goto send_ack_failure; - - netlbl_netlink_snd(skb, info->snd_pid); - return; - -send_ack_failure: - kfree_skb(skb); -} - -/* - * NETLINK I/O Functions - */ - -/** - * netlbl_netlink_snd - Send a NetLabel message - * @skb: NetLabel message - * @pid: destination PID - * - * Description: - * Sends a unicast NetLabel message over the NETLINK socket. - * - */ -int netlbl_netlink_snd(struct sk_buff *skb, u32 pid) -{ - return genlmsg_unicast(skb, pid); -} - -/** - * netlbl_netlink_snd - Send a NetLabel message - * @skb: NetLabel message - * @pid: sending PID - * @group: multicast group id - * - * Description: - * Sends a multicast NetLabel message over the NETLINK socket to all members - * of @group except @pid. - * - */ -int netlbl_netlink_snd_multicast(struct sk_buff *skb, u32 pid, u32 group) -{ - return genlmsg_multicast(skb, pid, group, GFP_KERNEL); -}
diff --git a/net/netlabel/netlabel_user.h b/net/netlabel/netlabel_user.h index 385a6c7..3f9386b 100644 --- a/net/netlabel/netlabel_user.h +++ b/net/netlabel/netlabel_user.h
@@ -41,72 +41,6 @@ /* NetLabel NETLINK helper functions */ /** - * netlbl_netlink_cap_check - Check the NETLINK msg capabilities - * @skb: the NETLINK buffer - * @req_cap: the required capability - * - * Description: - * Check the NETLINK buffer's capabilities against the required capabilities. - * Returns zero on success, negative values on failure. - * - */ -static inline int netlbl_netlink_cap_check(const struct sk_buff *skb, - kernel_cap_t req_cap) -{ - if (cap_raised(NETLINK_CB(skb).eff_cap, req_cap)) - return 0; - return -EPERM; -} - -/** - * netlbl_getinc_u8 - Read a u8 value from a nlattr stream and move on - * @nla: the attribute - * @rem_len: remaining length - * - * Description: - * Return a u8 value pointed to by @nla and advance it to the next attribute. - * - */ -static inline u8 netlbl_getinc_u8(struct nlattr **nla, int *rem_len) -{ - u8 val = nla_get_u8(*nla); - *nla = nla_next(*nla, rem_len); - return val; -} - -/** - * netlbl_getinc_u16 - Read a u16 value from a nlattr stream and move on - * @nla: the attribute - * @rem_len: remaining length - * - * Description: - * Return a u16 value pointed to by @nla and advance it to the next attribute. - * - */ -static inline u16 netlbl_getinc_u16(struct nlattr **nla, int *rem_len) -{ - u16 val = nla_get_u16(*nla); - *nla = nla_next(*nla, rem_len); - return val; -} - -/** - * netlbl_getinc_u32 - Read a u32 value from a nlattr stream and move on - * @nla: the attribute - * @rem_len: remaining length - * - * Description: - * Return a u32 value pointed to by @nla and advance it to the next attribute. - * - */ -static inline u32 netlbl_getinc_u32(struct nlattr **nla, int *rem_len) -{ - u32 val = nla_get_u32(*nla); - *nla = nla_next(*nla, rem_len); - return val; -} - -/** * netlbl_netlink_hdr_put - Write the NETLINK buffers into a sk_buff * @skb: the packet * @pid: the PID of the receipient @@ -124,6 +58,7 @@ u32 pid, u32 seq, int type, + int flags, u8 cmd) { return genlmsg_put(skb, @@ -131,85 +66,13 @@ seq, type, 0, - 0, + flags, cmd, NETLBL_PROTO_VERSION); } -/** - * netlbl_netlink_hdr_push - Write the NETLINK buffers into a sk_buff - * @skb: the packet - * @pid: the PID of the receipient - * @seq: the sequence number - * @type: the generic NETLINK message family type - * @cmd: command - * - * Description: - * Write both a NETLINK nlmsghdr structure and a Generic NETLINK genlmsghdr - * struct to the packet. - * - */ -static inline void netlbl_netlink_hdr_push(struct sk_buff *skb, - u32 pid, - u32 seq, - int type, - u8 cmd) - -{ - struct nlmsghdr *nlh; - struct genlmsghdr *hdr; - - nlh = (struct nlmsghdr *)skb_push(skb, NLMSG_SPACE(GENL_HDRLEN)); - nlh->nlmsg_type = type; - nlh->nlmsg_len = skb->len; - nlh->nlmsg_flags = 0; - nlh->nlmsg_pid = pid; - nlh->nlmsg_seq = seq; - - hdr = nlmsg_data(nlh); - hdr->cmd = cmd; - hdr->version = NETLBL_PROTO_VERSION; - hdr->reserved = 0; -} - -/** - * netlbl_netlink_payload_len - Return the length of the payload - * @skb: the NETLINK buffer - * - * Description: - * This function returns the length of the NetLabel payload. - * - */ -static inline u32 netlbl_netlink_payload_len(const struct sk_buff *skb) -{ - return nlmsg_len((struct nlmsghdr *)skb->data) - GENL_HDRLEN; -} - -/** - * netlbl_netlink_payload_data - Returns a pointer to the start of the payload - * @skb: the NETLINK buffer - * - * Description: - * This function returns a pointer to the start of the NetLabel payload. - * - */ -static inline void *netlbl_netlink_payload_data(const struct sk_buff *skb) -{ - return (unsigned char *)nlmsg_data((struct nlmsghdr *)skb->data) + - GENL_HDRLEN; -} - -/* NetLabel common protocol functions */ - -void netlbl_netlink_send_ack(const struct genl_info *info, - u32 genl_family, - u8 ack_cmd, - u32 ret_code); - /* NetLabel NETLINK I/O functions */ int netlbl_netlink_init(void); -int netlbl_netlink_snd(struct sk_buff *skb, u32 pid); -int netlbl_netlink_snd_multicast(struct sk_buff *skb, u32 pid, u32 group); #endif
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index dfa504f..700c6e0 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c
@@ -488,7 +488,6 @@ return NULL; inode->i_mode = mode; inode->i_uid = inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; switch(mode & S_IFMT) { @@ -858,7 +857,6 @@ void unregister_rpc_pipefs(void) { - if (kmem_cache_destroy(rpc_inode_cachep)) - printk(KERN_WARNING "RPC: unable to free inode cache\n"); + kmem_cache_destroy(rpc_inode_cachep); unregister_filesystem(&rpc_pipe_fs_type); }
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index 6390461..a1ab4ee 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c
@@ -1059,10 +1059,10 @@ mempool_destroy(rpc_buffer_mempool); if (rpc_task_mempool) mempool_destroy(rpc_task_mempool); - if (rpc_task_slabp && kmem_cache_destroy(rpc_task_slabp)) - printk(KERN_INFO "rpc_task: not all structures were freed\n"); - if (rpc_buffer_slabp && kmem_cache_destroy(rpc_buffer_slabp)) - printk(KERN_INFO "rpc_buffers: not all structures were freed\n"); + if (rpc_task_slabp) + kmem_cache_destroy(rpc_task_slabp); + if (rpc_buffer_slabp) + kmem_cache_destroy(rpc_buffer_slabp); } int
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index 3d52389..4f5ff19 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include
@@ -63,6 +63,13 @@ -xassembler /dev/null > /dev/null 2>&1; then echo "$(1)"; \ else echo "$(2)"; fi ;) +# as-instr +# Usage: cflags-y += $(call as-instr, instr, option1, option2) + +as-instr = $(shell if echo -e "$(1)" | $(AS) >/dev/null 2>&1 -W -Z -o astest$$$$.out ; \ + then echo "$(2)"; else echo "$(3)"; fi; \ + rm -f astest$$$$.out) + # cc-option # Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586)
diff --git a/scripts/gcc-x86_64-has-stack-protector.sh b/scripts/gcc-x86_64-has-stack-protector.sh new file mode 100644 index 0000000..325c0a1 --- /dev/null +++ b/scripts/gcc-x86_64-has-stack-protector.sh
@@ -0,0 +1,6 @@ +#!/bin/sh + +echo "int foo(void) { char X[200]; return 3; }" | $1 -S -xc -c -O0 -mcmodel=kernel -fstack-protector - -o - 2> /dev/null | grep -q "%gs" +if [ "$?" -eq "0" ] ; then + echo $2 +fi
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index de76da8..f61c9cc 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c
@@ -444,6 +444,14 @@ return 1; } +static int do_eisa_entry(const char *filename, struct eisa_device_id *eisa, + char *alias) +{ + if (eisa->sig[0]) + sprintf(alias, EISA_DEVICE_MODALIAS_FMT "*", eisa->sig); + return 1; +} + /* Ignore any prefix, eg. v850 prepends _ */ static inline int sym_is(const char *symbol, const char *name) { @@ -547,6 +555,10 @@ do_table(symval, sym->st_size, sizeof(struct input_device_id), "input", do_input_entry, mod); + else if (sym_is(symname, "__mod_eisa_device_table")) + do_table(symval, sym->st_size, + sizeof(struct eisa_device_id), "eisa", + do_eisa_entry, mod); } /* Now add out buffered information to the generated C source */
diff --git a/security/inode.c b/security/inode.c index 47eb634..49ee515 100644 --- a/security/inode.c +++ b/security/inode.c
@@ -44,8 +44,8 @@ static int default_open(struct inode *inode, struct file *file) { - if (inode->u.generic_ip) - file->private_data = inode->u.generic_ip; + if (inode->i_private) + file->private_data = inode->i_private; return 0; } @@ -64,7 +64,6 @@ inode->i_mode = mode; inode->i_uid = 0; inode->i_gid = 0; - inode->i_blksize = PAGE_CACHE_SIZE; inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; switch (mode & S_IFMT) { @@ -194,7 +193,7 @@ * directory dentry if set. If this paramater is NULL, then the * file will be created in the root of the securityfs filesystem. * @data: a pointer to something that the caller will want to get to later - * on. The inode.u.generic_ip pointer will point to this value on + * on. The inode.i_private pointer will point to this value on * the open() call. * @fops: a pointer to a struct file_operations that should be used for * this file. @@ -240,7 +239,7 @@ if (fops) dentry->d_inode->i_fop = fops; if (data) - dentry->d_inode->u.generic_ip = data; + dentry->d_inode->i_private = data; } exit: return dentry;
diff --git a/security/selinux/Kconfig b/security/selinux/Kconfig index 814ddc4..293dbd6 100644 --- a/security/selinux/Kconfig +++ b/security/selinux/Kconfig
@@ -124,3 +124,40 @@ If you are unsure what do do here, select N. +config SECURITY_SELINUX_POLICYDB_VERSION_MAX + bool "NSA SELinux maximum supported policy format version" + depends on SECURITY_SELINUX + default n + help + This option enables the maximum policy format version supported + by SELinux to be set to a particular value. This value is reported + to userspace via /selinux/policyvers and used at policy load time. + It can be adjusted downward to support legacy userland (init) that + does not correctly handle kernels that support newer policy versions. + + Examples: + For the Fedora Core 3 or 4 Linux distributions, enable this option + and set the value via the next option. For Fedore Core 5 and later, + do not enable this option. + + If you are unsure how to answer this question, answer N. + +config SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE + int "NSA SELinux maximum supported policy format version value" + depends on SECURITY_SELINUX_POLICYDB_VERSION_MAX + range 15 21 + default 19 + help + This option sets the value for the maximum policy format version + supported by SELinux. + + Examples: + For Fedora Core 3, use 18. + For Fedora Core 4, use 19. + + If you are unsure how to answer this question, look for the + policy format version supported by your policy toolchain, by + running 'checkpolicy -V'. Or look at what policy you have + installed under /etc/selinux/$SELINUXTYPE/policy, where + SELINUXTYPE is defined in your /etc/selinux/config. +
diff --git a/security/selinux/exports.c b/security/selinux/exports.c index 9d7737d..b6f9694 100644 --- a/security/selinux/exports.c +++ b/security/selinux/exports.c
@@ -21,19 +21,10 @@ #include "security.h" #include "objsec.h" -void selinux_task_ctxid(struct task_struct *tsk, u32 *ctxid) -{ - struct task_security_struct *tsec = tsk->security; - if (selinux_enabled) - *ctxid = tsec->sid; - else - *ctxid = 0; -} - -int selinux_ctxid_to_string(u32 ctxid, char **ctx, u32 *ctxlen) +int selinux_sid_to_string(u32 sid, char **ctx, u32 *ctxlen) { if (selinux_enabled) - return security_sid_to_context(ctxid, ctx, ctxlen); + return security_sid_to_context(sid, ctx, ctxlen); else { *ctx = NULL; *ctxlen = 0;
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 5a66c4c..e4d81a4 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c
@@ -51,7 +51,6 @@ #include <net/ip.h> /* for sysctl_local_port_range[] */ #include <net/tcp.h> /* struct or_callable used in sock_rcv_skb */ #include <asm/uaccess.h> -#include <asm/semaphore.h> #include <asm/ioctls.h> #include <linux/bitops.h> #include <linux/interrupt.h> @@ -71,6 +70,7 @@ #include <linux/audit.h> #include <linux/string.h> #include <linux/selinux.h> +#include <linux/mutex.h> #include "avc.h" #include "objsec.h" @@ -185,7 +185,7 @@ return -ENOMEM; memset(isec, 0, sizeof(*isec)); - init_MUTEX(&isec->sem); + mutex_init(&isec->lock); INIT_LIST_HEAD(&isec->list); isec->inode = inode; isec->sid = SECINITSID_UNLABELED; @@ -242,7 +242,7 @@ if (!sbsec) return -ENOMEM; - init_MUTEX(&sbsec->sem); + mutex_init(&sbsec->lock); INIT_LIST_HEAD(&sbsec->list); INIT_LIST_HEAD(&sbsec->isec_head); spin_lock_init(&sbsec->isec_lock); @@ -594,7 +594,7 @@ struct inode *inode = root->d_inode; int rc = 0; - down(&sbsec->sem); + mutex_lock(&sbsec->lock); if (sbsec->initialized) goto out; @@ -689,7 +689,7 @@ } spin_unlock(&sbsec->isec_lock); out: - up(&sbsec->sem); + mutex_unlock(&sbsec->lock); return rc; } @@ -843,15 +843,13 @@ char *context = NULL; unsigned len = 0; int rc = 0; - int hold_sem = 0; if (isec->initialized) goto out; - down(&isec->sem); - hold_sem = 1; + mutex_lock(&isec->lock); if (isec->initialized) - goto out; + goto out_unlock; sbsec = inode->i_sb->s_security; if (!sbsec->initialized) { @@ -862,7 +860,7 @@ if (list_empty(&isec->list)) list_add(&isec->list, &sbsec->isec_head); spin_unlock(&sbsec->isec_lock); - goto out; + goto out_unlock; } switch (sbsec->behavior) { @@ -885,7 +883,7 @@ printk(KERN_WARNING "%s: no dentry for dev=%s " "ino=%ld\n", __FUNCTION__, inode->i_sb->s_id, inode->i_ino); - goto out; + goto out_unlock; } len = INITCONTEXTLEN; @@ -893,7 +891,7 @@ if (!context) { rc = -ENOMEM; dput(dentry); - goto out; + goto out_unlock; } rc = inode->i_op->getxattr(dentry, XATTR_NAME_SELINUX, context, len); @@ -903,7 +901,7 @@ NULL, 0); if (rc < 0) { dput(dentry); - goto out; + goto out_unlock; } kfree(context); len = rc; @@ -911,7 +909,7 @@ if (!context) { rc = -ENOMEM; dput(dentry); - goto out; + goto out_unlock; } rc = inode->i_op->getxattr(dentry, XATTR_NAME_SELINUX, @@ -924,7 +922,7 @@ "%d for dev=%s ino=%ld\n", __FUNCTION__, -rc, inode->i_sb->s_id, inode->i_ino); kfree(context); - goto out; + goto out_unlock; } /* Map ENODATA to the default file SID */ sid = sbsec->def_sid; @@ -960,7 +958,7 @@ isec->sclass, &sid); if (rc) - goto out; + goto out_unlock; isec->sid = sid; break; case SECURITY_FS_USE_MNTPOINT: @@ -978,7 +976,7 @@ isec->sclass, &sid); if (rc) - goto out; + goto out_unlock; isec->sid = sid; } } @@ -987,12 +985,11 @@ isec->initialized = 1; +out_unlock: + mutex_unlock(&isec->lock); out: if (isec->sclass == SECCLASS_FILE) isec->sclass = inode_mode_to_security_class(inode->i_mode); - - if (hold_sem) - up(&isec->sem); return rc; } @@ -1364,25 +1361,6 @@ return av; } -/* Set an inode's SID to a specified value. */ -static int inode_security_set_sid(struct inode *inode, u32 sid) -{ - struct inode_security_struct *isec = inode->i_security; - struct superblock_security_struct *sbsec = inode->i_sb->s_security; - - if (!sbsec->initialized) { - /* Defer initialization to selinux_complete_init. */ - return 0; - } - - down(&isec->sem); - isec->sclass = inode_mode_to_security_class(inode->i_mode); - isec->sid = sid; - isec->initialized = 1; - up(&isec->sem); - return 0; -} - /* Hook functions begin here. */ static int selinux_ptrace(struct task_struct *parent, struct task_struct *child) @@ -1711,10 +1689,12 @@ { struct avc_audit_data ad; struct file *file, *devnull = NULL; - struct tty_struct *tty = current->signal->tty; + struct tty_struct *tty; struct fdtable *fdt; long j = -1; + mutex_lock(&tty_mutex); + tty = current->signal->tty; if (tty) { file_list_lock(); file = list_entry(tty->tty_files.next, typeof(*file), f_u.fu_list); @@ -1734,6 +1714,7 @@ } file_list_unlock(); } + mutex_unlock(&tty_mutex); /* Revalidate access to inherited open files. */ @@ -2091,7 +2072,13 @@ } } - inode_security_set_sid(inode, newsid); + /* Possibly defer initialization to selinux_complete_init. */ + if (sbsec->initialized) { + struct inode_security_struct *isec = inode->i_security; + isec->sclass = inode_mode_to_security_class(inode->i_mode); + isec->sid = newsid; + isec->initialized = 1; + } if (!ss_initialized || sbsec->behavior == SECURITY_FS_USE_MNTPOINT) return -EOPNOTSUPP;
diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h index 0a39bfd..ef2267f 100644 --- a/security/selinux/include/objsec.h +++ b/security/selinux/include/objsec.h
@@ -44,7 +44,7 @@ u32 sid; /* SID of this object */ u16 sclass; /* security class of this object */ unsigned char initialized; /* initialization flag */ - struct semaphore sem; + struct mutex lock; unsigned char inherit; /* inherit SID from parent entry */ }; @@ -63,7 +63,7 @@ unsigned int behavior; /* labeling behavior */ unsigned char initialized; /* initialization flag */ unsigned char proc; /* proc fs */ - struct semaphore sem; + struct mutex lock; struct list_head isec_head; spinlock_t isec_lock; };
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h index 911954a..1ef7917 100644 --- a/security/selinux/include/security.h +++ b/security/selinux/include/security.h
@@ -24,10 +24,15 @@ #define POLICYDB_VERSION_VALIDATETRANS 19 #define POLICYDB_VERSION_MLS 19 #define POLICYDB_VERSION_AVTAB 20 +#define POLICYDB_VERSION_RANGETRANS 21 /* Range of policy versions we understand*/ #define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE -#define POLICYDB_VERSION_MAX POLICYDB_VERSION_AVTAB +#ifdef CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX +#define POLICYDB_VERSION_MAX CONFIG_SECURITY_SELINUX_POLICYDB_VERSION_MAX_VALUE +#else +#define POLICYDB_VERSION_MAX POLICYDB_VERSION_RANGETRANS +#endif extern int selinux_enabled; extern int selinux_mls_enabled;
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index 00534c3..bab7b38 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c
@@ -771,7 +771,6 @@ if (ret) { ret->i_mode = mode; ret->i_uid = ret->i_gid = 0; - ret->i_blksize = PAGE_CACHE_SIZE; ret->i_blocks = 0; ret->i_atime = ret->i_mtime = ret->i_ctime = CURRENT_TIME; }
diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c index 119bd60..c713af2 100644 --- a/security/selinux/ss/mls.c +++ b/security/selinux/ss/mls.c
@@ -530,22 +530,21 @@ u32 specified, struct context *newcontext) { + struct range_trans *rtr; + if (!selinux_mls_enabled) return 0; switch (specified) { case AVTAB_TRANSITION: - if (tclass == SECCLASS_PROCESS) { - struct range_trans *rangetr; - /* Look for a range transition rule. */ - for (rangetr = policydb.range_tr; rangetr; - rangetr = rangetr->next) { - if (rangetr->dom == scontext->type && - rangetr->type == tcontext->type) { - /* Set the range from the rule */ - return mls_range_set(newcontext, - &rangetr->range); - } + /* Look for a range transition rule. */ + for (rtr = policydb.range_tr; rtr; rtr = rtr->next) { + if (rtr->source_type == scontext->type && + rtr->target_type == tcontext->type && + rtr->target_class == tclass) { + /* Set the range from the rule */ + return mls_range_set(newcontext, + &rtr->target_range); } } /* Fallthrough */
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c index f03960e..b188953 100644 --- a/security/selinux/ss/policydb.c +++ b/security/selinux/ss/policydb.c
@@ -96,6 +96,11 @@ .sym_num = SYM_NUM, .ocon_num = OCON_NUM, }, + { + .version = POLICYDB_VERSION_RANGETRANS, + .sym_num = SYM_NUM, + .ocon_num = OCON_NUM, + }, }; static struct policydb_compat_info *policydb_lookup_compat(int version) @@ -645,15 +650,15 @@ for (rt = p->range_tr; rt; rt = rt -> next) { if (lrt) { - ebitmap_destroy(&lrt->range.level[0].cat); - ebitmap_destroy(&lrt->range.level[1].cat); + ebitmap_destroy(&lrt->target_range.level[0].cat); + ebitmap_destroy(&lrt->target_range.level[1].cat); kfree(lrt); } lrt = rt; } if (lrt) { - ebitmap_destroy(&lrt->range.level[0].cat); - ebitmap_destroy(&lrt->range.level[1].cat); + ebitmap_destroy(&lrt->target_range.level[0].cat); + ebitmap_destroy(&lrt->target_range.level[1].cat); kfree(lrt); } @@ -1829,6 +1834,7 @@ } if (p->policyvers >= POLICYDB_VERSION_MLS) { + int new_rangetr = p->policyvers >= POLICYDB_VERSION_RANGETRANS; rc = next_entry(buf, fp, sizeof(u32)); if (rc < 0) goto bad; @@ -1847,9 +1853,16 @@ rc = next_entry(buf, fp, (sizeof(u32) * 2)); if (rc < 0) goto bad; - rt->dom = le32_to_cpu(buf[0]); - rt->type = le32_to_cpu(buf[1]); - rc = mls_read_range_helper(&rt->range, fp); + rt->source_type = le32_to_cpu(buf[0]); + rt->target_type = le32_to_cpu(buf[1]); + if (new_rangetr) { + rc = next_entry(buf, fp, sizeof(u32)); + if (rc < 0) + goto bad; + rt->target_class = le32_to_cpu(buf[0]); + } else + rt->target_class = SECCLASS_PROCESS; + rc = mls_read_range_helper(&rt->target_range, fp); if (rc) goto bad; lrt = rt;
diff --git a/security/selinux/ss/policydb.h b/security/selinux/ss/policydb.h index b134071..8319d5f 100644 --- a/security/selinux/ss/policydb.h +++ b/security/selinux/ss/policydb.h
@@ -106,9 +106,10 @@ }; struct range_trans { - u32 dom; /* current process domain */ - u32 type; /* program executable type */ - struct mls_range range; /* new range */ + u32 source_type; + u32 target_type; + u32 target_class; + struct mls_range target_range; struct range_trans *next; };
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c index 7eb69a6..0c219a1 100644 --- a/security/selinux/ss/services.c +++ b/security/selinux/ss/services.c
@@ -2003,7 +2003,7 @@ return rc; } -int selinux_audit_rule_match(u32 ctxid, u32 field, u32 op, +int selinux_audit_rule_match(u32 sid, u32 field, u32 op, struct selinux_audit_rule *rule, struct audit_context *actx) { @@ -2026,11 +2026,11 @@ goto out; } - ctxt = sidtab_search(&sidtab, ctxid); + ctxt = sidtab_search(&sidtab, sid); if (!ctxt) { audit_log(actx, GFP_ATOMIC, AUDIT_SELINUX_ERR, "selinux_audit_rule_match: unrecognized SID %d\n", - ctxid); + sid); match = -ENOENT; goto out; } @@ -2502,14 +2502,24 @@ { struct inode_security_struct *isec = SOCK_INODE(sock)->i_security; struct sk_security_struct *sksec = sk->sk_security; + struct netlbl_lsm_secattr secattr; + u32 nlbl_peer_sid; sksec->sclass = isec->sclass; if (sk->sk_family != PF_INET) return; + netlbl_secattr_init(&secattr); + if (netlbl_sock_getattr(sk, &secattr) == 0 && + selinux_netlbl_secattr_to_sid(NULL, + &secattr, + sksec->sid, + &nlbl_peer_sid) == 0) + sksec->peer_sid = nlbl_peer_sid; + netlbl_secattr_destroy(&secattr, 0); + sksec->nlbl_state = NLBL_REQUIRE; - sksec->peer_sid = sksec->sid; /* Try to set the NetLabel on the socket to save time later, if we fail * here we will pick up the pieces in later calls to @@ -2568,7 +2578,7 @@ sock = SOCKET_I(inode); isec = inode->i_security; sksec = sock->sk->sk_security; - down(&isec->sem); + mutex_lock(&isec->lock); if (unlikely(sksec->nlbl_state == NLBL_REQUIRE && (mask & (MAY_WRITE | MAY_APPEND)))) { lock_sock(sock->sk); @@ -2576,7 +2586,7 @@ release_sock(sock->sk); } else rc = 0; - up(&isec->sem); + mutex_unlock(&isec->lock); return rc; } @@ -2601,7 +2611,7 @@ u32 netlbl_sid; u32 recv_perm; - rc = selinux_netlbl_skbuff_getsid(skb, sksec->sid, &netlbl_sid); + rc = selinux_netlbl_skbuff_getsid(skb, SECINITSID_NETMSG, &netlbl_sid); if (rc != 0) return rc; @@ -2610,13 +2620,13 @@ switch (sksec->sclass) { case SECCLASS_UDP_SOCKET: - recv_perm = UDP_SOCKET__RECV_MSG; + recv_perm = UDP_SOCKET__RECVFROM; break; case SECCLASS_TCP_SOCKET: - recv_perm = TCP_SOCKET__RECV_MSG; + recv_perm = TCP_SOCKET__RECVFROM; break; default: - recv_perm = RAWIP_SOCKET__RECV_MSG; + recv_perm = RAWIP_SOCKET__RECVFROM; } rc = avc_has_perm(sksec->sid,
diff --git a/sound/oss/au1550_ac97.c b/sound/oss/au1550_ac97.c index 4cdb862..2197951 100644 --- a/sound/oss/au1550_ac97.c +++ b/sound/oss/au1550_ac97.c
@@ -719,8 +719,7 @@ } -static void -dac_dma_interrupt(int irq, void *dev_id, struct pt_regs *regs) +static void dac_dma_interrupt(int irq, void *dev_id) { struct au1550_state *s = (struct au1550_state *) dev_id; struct dmabuf *db = &s->dma_dac; @@ -754,8 +753,7 @@ } -static void -adc_dma_interrupt(int irq, void *dev_id, struct pt_regs *regs) +static void adc_dma_interrupt(int irq, void *dev_id) { struct au1550_state *s = (struct au1550_state *)dev_id; struct dmabuf *dp = &s->dma_adc;
diff --git a/sound/oss/sh_dac_audio.c b/sound/oss/sh_dac_audio.c index 7b168d8..83ff8a7 100644 --- a/sound/oss/sh_dac_audio.c +++ b/sound/oss/sh_dac_audio.c
@@ -1,3 +1,14 @@ +/* + * sound/oss/sh_dac_audio.c + * + * SH DAC based sound :( + * + * Copyright (C) 2004,2005 Andriy Skulysh + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ #include <linux/module.h> #include <linux/init.h> #include <linux/sched.h> @@ -6,18 +17,17 @@ #include <linux/fs.h> #include <linux/sound.h> #include <linux/soundcard.h> +#include <linux/interrupt.h> #include <asm/io.h> #include <asm/uaccess.h> #include <asm/irq.h> #include <asm/delay.h> -#include <linux/interrupt.h> - +#include <asm/clock.h> #include <asm/cpu/dac.h> - -#ifdef MACH_HP600 +#include <asm/cpu/timer.h> +#include <asm/machvec.h> #include <asm/hp6xx/hp6xx.h> -#include <asm/hd64461/hd64461.h> -#endif +#include <asm/hd64461.h> #define MODNAME "sh_dac_audio" @@ -26,11 +36,6 @@ #define TMU1_TCR_INIT 0x0020 /* Clock/4, rising edge; interrupt on */ #define TMU1_TSTR_INIT 0x02 /* Bit to turn on TMU1 */ -#define TMU_TSTR 0xfffffe92 -#define TMU1_TCOR 0xfffffea0 -#define TMU1_TCNT 0xfffffea4 -#define TMU1_TCR 0xfffffea8 - #define BUFFER_SIZE 48000 static int rate; @@ -71,34 +76,37 @@ static void dac_audio_start(void) { -#ifdef MACH_HP600 - u16 v; - v = inw(HD64461_GPADR); - v &= ~HD64461_GPADR_SPEAKER; - outw(v, HD64461_GPADR); -#endif + if (mach_is_hp6xx()) { + u16 v = inw(HD64461_GPADR); + v &= ~HD64461_GPADR_SPEAKER; + outw(v, HD64461_GPADR); + } + sh_dac_enable(CONFIG_SOUND_SH_DAC_AUDIO_CHANNEL); ctrl_outw(TMU1_TCR_INIT, TMU1_TCR); } static void dac_audio_stop(void) { -#ifdef MACH_HP600 - u16 v; -#endif dac_audio_stop_timer(); -#ifdef MACH_HP600 - v = inw(HD64461_GPADR); - v |= HD64461_GPADR_SPEAKER; - outw(v, HD64461_GPADR); -#endif + + if (mach_is_hp6xx()) { + u16 v = inw(HD64461_GPADR); + v |= HD64461_GPADR_SPEAKER; + outw(v, HD64461_GPADR); + } + + sh_dac_output(0, CONFIG_SOUND_SH_DAC_AUDIO_CHANNEL); sh_dac_disable(CONFIG_SOUND_SH_DAC_AUDIO_CHANNEL); } static void dac_audio_set_rate(void) { unsigned long interval; + struct clk *clk; - interval = (current_cpu_data.module_clock / 4) / rate; + clk = clk_get("module_clk"); + interval = (clk_get_rate(clk) / 4) / rate; + clk_put(clk); ctrl_outl(interval, TMU1_TCOR); ctrl_outl(interval, TMU1_TCNT); }
diff --git a/sound/sparc/amd7930.c b/sound/sparc/amd7930.c index 2bd8e40..be0bd50 100644 --- a/sound/sparc/amd7930.c +++ b/sound/sparc/amd7930.c
@@ -755,7 +755,7 @@ .pointer = snd_amd7930_capture_pointer, }; -static int __init snd_amd7930_pcm(struct snd_amd7930 *amd) +static int __devinit snd_amd7930_pcm(struct snd_amd7930 *amd) { struct snd_pcm *pcm; int err; @@ -870,7 +870,7 @@ return change; } -static struct snd_kcontrol_new amd7930_controls[] __initdata = { +static struct snd_kcontrol_new amd7930_controls[] __devinitdata = { { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = "Monitor Volume", @@ -900,7 +900,7 @@ }, }; -static int __init snd_amd7930_mixer(struct snd_amd7930 *amd) +static int __devinit snd_amd7930_mixer(struct snd_amd7930 *amd) { struct snd_card *card; int idx, err; @@ -945,11 +945,11 @@ .dev_free = snd_amd7930_dev_free, }; -static int __init snd_amd7930_create(struct snd_card *card, - struct resource *rp, - unsigned int reg_size, - int irq, int dev, - struct snd_amd7930 **ramd) +static int __devinit snd_amd7930_create(struct snd_card *card, + struct resource *rp, + unsigned int reg_size, + int irq, int dev, + struct snd_amd7930 **ramd) { unsigned long flags; struct snd_amd7930 *amd; @@ -1013,7 +1013,7 @@ return 0; } -static int __init amd7930_attach_common(struct resource *rp, int irq) +static int __devinit amd7930_attach_common(struct resource *rp, int irq) { static int dev_num; struct snd_card *card; @@ -1065,7 +1065,7 @@ return err; } -static int __init amd7930_obio_attach(struct device_node *dp) +static int __devinit amd7930_obio_attach(struct device_node *dp) { struct linux_prom_registers *regs; struct linux_prom_irqs *irqp;
diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index 5105b6b..abe29da 100644 --- a/sound/usb/usbmidi.c +++ b/sound/usb/usbmidi.c
@@ -181,9 +181,9 @@ case -ENODEV: return -ENODEV; /* errors that might occur during unplugging */ - case -EPROTO: /* EHCI */ - case -ETIMEDOUT: /* OHCI */ - case -EILSEQ: /* UHCI */ + case -EPROTO: + case -ETIME: + case -EILSEQ: return -EIO; default: snd_printk(KERN_ERR "urb status %d\n", status);