Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c
index ab82b7f..d6cb1a8 100644
--- a/Documentation/accounting/getdelays.c
+++ b/Documentation/accounting/getdelays.c
@@ -25,6 +25,7 @@
#include <linux/genetlink.h>
#include <linux/taskstats.h>
+#include <linux/cgroupstats.h>
/*
* Generic macros for dealing with netlink sockets. Might be duplicated
@@ -78,6 +79,7 @@
fprintf(stderr, " -i: print IO accounting (works only with -p)\n");
fprintf(stderr, " -l: listen forever\n");
fprintf(stderr, " -v: debug on\n");
+ fprintf(stderr, " -C: container path\n");
}
/*
@@ -212,6 +214,14 @@
t->nvcsw, t->nivcsw);
}
+void print_cgroupstats(struct cgroupstats *c)
+{
+ printf("sleeping %llu, blocked %llu, running %llu, stopped %llu, "
+ "uninterruptible %llu\n", c->nr_sleeping, c->nr_io_wait,
+ c->nr_running, c->nr_stopped, c->nr_uninterruptible);
+}
+
+
void print_ioacct(struct taskstats *t)
{
printf("%s: read=%llu, write=%llu, cancelled_write=%llu\n",
@@ -239,11 +249,14 @@
int maskset = 0;
char *logfile = NULL;
int loop = 0;
+ int containerset = 0;
+ char containerpath[1024];
+ int cfd = 0;
struct msgtemplate msg;
while (1) {
- c = getopt(argc, argv, "qdiw:r:m:t:p:vl");
+ c = getopt(argc, argv, "qdiw:r:m:t:p:vlC:");
if (c < 0)
break;
@@ -260,6 +273,10 @@
printf("printing task/process context switch rates\n");
print_task_context_switch_counts = 1;
break;
+ case 'C':
+ containerset = 1;
+ strncpy(containerpath, optarg, strlen(optarg) + 1);
+ break;
case 'w':
logfile = strdup(optarg);
printf("write to file %s\n", logfile);
@@ -334,6 +351,11 @@
}
}
+ if (tid && containerset) {
+ fprintf(stderr, "Select either -t or -C, not both\n");
+ goto err;
+ }
+
if (tid) {
rc = send_cmd(nl_sd, id, mypid, TASKSTATS_CMD_GET,
cmd_type, &tid, sizeof(__u32));
@@ -344,6 +366,20 @@
}
}
+ if (containerset) {
+ cfd = open(containerpath, O_RDONLY);
+ if (cfd < 0) {
+ perror("error opening container file");
+ goto err;
+ }
+ rc = send_cmd(nl_sd, id, mypid, CGROUPSTATS_CMD_GET,
+ CGROUPSTATS_CMD_ATTR_FD, &cfd, sizeof(__u32));
+ if (rc < 0) {
+ perror("error sending cgroupstats command");
+ goto err;
+ }
+ }
+
do {
int i;
@@ -422,6 +458,9 @@
}
break;
+ case CGROUPSTATS_TYPE_CGROUP_STATS:
+ print_cgroupstats(NLA_DATA(na));
+ break;
default:
fprintf(stderr, "Unknown nla_type %d\n",
na->nla_type);
@@ -443,5 +482,7 @@
close(nl_sd);
if (fd)
close(fd);
+ if (cfd)
+ close(cfd);
return 0;
}
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 6bb9be5..20c4c8b 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -181,15 +181,6 @@
---------------------------
-What: Interrupt only SA_* flags
-When: September 2007
-Why: The interrupt related SA_* flags are replaced by IRQF_* to move them
- out of the signal namespace.
-
-Who: Thomas Gleixner <tglx@linutronix.de>
-
----------------------------
-
What: PHYSDEVPATH, PHYSDEVBUS, PHYSDEVDRIVER in the uevent environment
When: October 2008
Why: The stacking of class devices makes these values misleading and
diff --git a/Documentation/markers.txt b/Documentation/markers.txt
index 295a71b..d9f50a1 100644
--- a/Documentation/markers.txt
+++ b/Documentation/markers.txt
@@ -35,12 +35,14 @@
And,
-trace_mark(subsystem_event, "%d %s", someint, somestring);
+trace_mark(subsystem_event, "myint %d mystring %s", someint, somestring);
Where :
- subsystem_event is an identifier unique to your event
- subsystem is the name of your subsystem.
- event is the name of the event to mark.
-- "%d %s" is the formatted string for the serializer.
+- "myint %d mystring %s" is the formatted string for the serializer. "myint" and
+ "mystring" are repectively the field names associated with the first and
+ second parameter.
- someint is an integer.
- somestring is a char pointer.
diff --git a/Documentation/rtc.txt b/Documentation/rtc.txt
index c931d61..e20b19c 100644
--- a/Documentation/rtc.txt
+++ b/Documentation/rtc.txt
@@ -180,9 +180,10 @@
* RTC_IRQP_SET, RTC_IRQP_READ: the irq_set_freq function will be called
to set the frequency while the framework will handle the read for you
since the frequency is stored in the irq_freq member of the rtc_device
- structure. Also make sure you set the max_user_freq member in your
- initialization routines so the framework can sanity check the user
- input for you.
+ structure. Your driver needs to initialize the irq_freq member during
+ init. Make sure you check the requested frequency is in range of your
+ hardware in the irq_set_freq function. If you cannot actually change
+ the frequency, just return -ENOTTY.
If all else fails, check out the rtc-test.c driver!
diff --git a/Makefile b/Makefile
index e28dde8..a65ffd2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 24
-EXTRAVERSION = -rc2
+EXTRAVERSION = -rc3
NAME = Arr Matey! A Hairy Bilge Rat!
# *DOCUMENTATION*
@@ -197,8 +197,13 @@
UTS_MACHINE := $(ARCH)
SRCARCH := $(ARCH)
-# for i386 and x86_64 we use SRCARCH equal to x86
-SRCARCH := $(if $(filter x86_64 i386,$(SRCARCH)),x86,$(SRCARCH))
+# Additional ARCH settings for x86
+ifeq ($(ARCH),i386)
+ SRCARCH := x86
+endif
+ifeq ($(ARCH),x86_64)
+ SRCARCH := x86
+endif
KCONFIG_CONFIG ?= .config
@@ -1327,12 +1332,7 @@
ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
endif
-# Take care of arch/x86
-ifeq ($(ARCH), $(SRCARCH))
-ALLSOURCE_ARCHS := $(ARCH)
-else
-ALLSOURCE_ARCHS := $(ARCH) $(SRCARCH)
-endif
+ALLSOURCE_ARCHS := $(SRCARCH)
define find-sources
( for arch in $(ALLSOURCE_ARCHS) ; do \
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 5da7982..61d9c9d 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -150,22 +150,45 @@
local_irq_enable();
}
+static const struct clkops clk_pxa3xx_cken_ops = {
+ .enable = clk_pxa3xx_cken_enable,
+ .disable = clk_pxa3xx_cken_disable,
+};
+
static const struct clkops clk_pxa3xx_hsio_ops = {
.enable = clk_pxa3xx_cken_enable,
.disable = clk_pxa3xx_cken_disable,
.getrate = clk_pxa3xx_hsio_getrate,
};
+#define PXA3xx_CKEN(_name, _cken, _rate, _delay, _dev) \
+ { \
+ .name = _name, \
+ .dev = _dev, \
+ .ops = &clk_pxa3xx_cken_ops, \
+ .rate = _rate, \
+ .cken = CKEN_##_cken, \
+ .delay = _delay, \
+ }
+
+#define PXA3xx_CK(_name, _cken, _ops, _dev) \
+ { \
+ .name = _name, \
+ .dev = _dev, \
+ .ops = _ops, \
+ .cken = CKEN_##_cken, \
+ }
+
static struct clk pxa3xx_clks[] = {
- INIT_CK("LCDCLK", LCD, &clk_pxa3xx_hsio_ops, &pxa_device_fb.dev),
- INIT_CK("CAMCLK", CAMERA, &clk_pxa3xx_hsio_ops, NULL),
+ PXA3xx_CK("LCDCLK", LCD, &clk_pxa3xx_hsio_ops, &pxa_device_fb.dev),
+ PXA3xx_CK("CAMCLK", CAMERA, &clk_pxa3xx_hsio_ops, NULL),
- INIT_CKEN("UARTCLK", FFUART, 14857000, 1, &pxa_device_ffuart.dev),
- INIT_CKEN("UARTCLK", BTUART, 14857000, 1, &pxa_device_btuart.dev),
- INIT_CKEN("UARTCLK", STUART, 14857000, 1, NULL),
+ PXA3xx_CKEN("UARTCLK", FFUART, 14857000, 1, &pxa_device_ffuart.dev),
+ PXA3xx_CKEN("UARTCLK", BTUART, 14857000, 1, &pxa_device_btuart.dev),
+ PXA3xx_CKEN("UARTCLK", STUART, 14857000, 1, NULL),
- INIT_CKEN("I2CCLK", I2C, 32842000, 0, &pxa_device_i2c.dev),
- INIT_CKEN("UDCCLK", UDC, 48000000, 5, &pxa_device_udc.dev),
+ PXA3xx_CKEN("I2CCLK", I2C, 32842000, 0, &pxa_device_i2c.dev),
+ PXA3xx_CKEN("UDCCLK", UDC, 48000000, 5, &pxa_device_udc.dev),
};
void __init pxa3xx_init_irq(void)
diff --git a/arch/arm/mm/consistent.c b/arch/arm/mm/consistent.c
index cefdf2f..333a82a 100644
--- a/arch/arm/mm/consistent.c
+++ b/arch/arm/mm/consistent.c
@@ -322,7 +322,6 @@
if (off < kern_size &&
user_size <= (kern_size - off)) {
- vma->vm_flags |= VM_RESERVED;
ret = remap_pfn_range(vma, vma->vm_start,
page_to_pfn(c->vm_pages) + off,
user_size << PAGE_SHIFT,
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index bbecbd8..4f402c9 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -19,9 +19,6 @@
There is an AVR32 Linux project with a web page at
http://avr32linux.org/.
-config UID16
- bool
-
config GENERIC_GPIO
bool
default y
diff --git a/arch/avr32/mach-at32ap/at32ap7000.c b/arch/avr32/mach-at32ap/at32ap7000.c
index a9d9ec0..7c4388f 100644
--- a/arch/avr32/mach-at32ap/at32ap7000.c
+++ b/arch/avr32/mach-at32ap/at32ap7000.c
@@ -474,7 +474,7 @@
static struct resource at32_wdt0_resource[] = {
{
.start = 0xfff000b0,
- .end = 0xfff000bf,
+ .end = 0xfff000cf,
.flags = IORESOURCE_MEM,
},
};
@@ -690,7 +690,7 @@
IRQ(6),
};
DEFINE_DEV_DATA(atmel_usart, 0);
-DEV_CLK(usart, atmel_usart0, pba, 4);
+DEV_CLK(usart, atmel_usart0, pba, 3);
static struct atmel_uart_data atmel_usart1_data = {
.use_dma_tx = 1,
diff --git a/arch/avr32/mach-at32ap/hsmc.c b/arch/avr32/mach-at32ap/hsmc.c
index 704607f..fa427ed 100644
--- a/arch/avr32/mach-at32ap/hsmc.c
+++ b/arch/avr32/mach-at32ap/hsmc.c
@@ -7,7 +7,6 @@
* 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>
diff --git a/arch/avr32/mach-at32ap/intc.c b/arch/avr32/mach-at32ap/intc.c
index dd5c009..0b286cd 100644
--- a/arch/avr32/mach-at32ap/intc.c
+++ b/arch/avr32/mach-at32ap/intc.c
@@ -13,6 +13,7 @@
#include <linux/irq.h>
#include <linux/platform_device.h>
+#include <asm/intc.h>
#include <asm/io.h>
#include "intc.h"
@@ -136,7 +137,8 @@
panic("Interrupt controller initialization failed!\n");
}
-unsigned long intc_get_pending(int group)
+unsigned long intc_get_pending(unsigned int group)
{
return intc_readl(&intc0, INTREQ0 + 4 * group);
}
+EXPORT_SYMBOL_GPL(intc_get_pending);
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 21900a9..222da15 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -13,6 +13,10 @@
bool
default y
+config NO_DMA
+ bool
+ default y
+
config RWSEM_GENERIC_SPINLOCK
bool
default y
@@ -57,6 +61,10 @@
source "fs/Kconfig.binfmt"
+config GENERIC_HARDIRQS
+ bool
+ default y
+
config ETRAX_CMDLINE
string "Kernel command line"
default "root=/dev/mtdblock3"
@@ -149,7 +157,8 @@
# bring in ETRAX built-in drivers
menu "Drivers for built-in interfaces"
-source arch/cris/arch-v10/drivers/Kconfig
+# arch/cris/arch is a symlink to correct arch (arch-v10 or arch-v32)
+source arch/cris/arch/drivers/Kconfig
endmenu
@@ -180,6 +189,10 @@
source "drivers/telephony/Kconfig"
+source "drivers/i2c/Kconfig"
+
+source "drivers/rtc/Kconfig"
+
#
# input before char - char/joystick depends on it. As does USB.
#
@@ -194,6 +207,10 @@
source "sound/Kconfig"
+source "drivers/pcmcia/Kconfig"
+
+source "drivers/pci/Kconfig"
+
source "drivers/usb/Kconfig"
source "kernel/Kconfig.instrumentation"
diff --git a/arch/cris/arch-v10/defconfig b/arch/cris/arch-v10/defconfig
index 710c20b..572f119 100644
--- a/arch/cris/arch-v10/defconfig
+++ b/arch/cris/arch-v10/defconfig
@@ -99,7 +99,6 @@
CONFIG_MTD_CFI=y
# CONFIG_MTD_CFI_INTELEXT is not set
CONFIG_MTD_CFI_AMDSTD=y
-CONFIG_MTD_AMDSTD=y
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_ETRAX_I2C=y
@@ -145,7 +144,6 @@
# CONFIG_MTD_CFI_GEOMETRY is not set
# CONFIG_MTD_CFI_INTELEXT is not set
CONFIG_MTD_CFI_AMDSTD=y
-CONFIG_MTD_AMDSTD=y
# CONFIG_MTD_SHARP is not set
# CONFIG_MTD_PHYSMAP is not set
# CONFIG_MTD_NORA is not set
diff --git a/arch/cris/arch-v10/drivers/Kconfig b/arch/cris/arch-v10/drivers/Kconfig
index 03e2e68..faf8b4d 100644
--- a/arch/cris/arch-v10/drivers/Kconfig
+++ b/arch/cris/arch-v10/drivers/Kconfig
@@ -2,6 +2,7 @@
bool "Ethernet support"
depends on ETRAX_ARCH_V10
select NET_ETHERNET
+ select MII
help
This option enables the ETRAX 100LX built-in 10/100Mbit Ethernet
controller.
@@ -605,8 +606,6 @@
select MTD
select MTD_CFI
select MTD_CFI_AMDSTD
- select MTD_OBSOLETE_CHIPS
- select MTD_AMDSTD
select MTD_CHAR
select MTD_BLOCK
select MTD_PARTITIONS
diff --git a/arch/cris/arch-v10/drivers/axisflashmap.c b/arch/cris/arch-v10/drivers/axisflashmap.c
index efd7b0f..ea3cf2e 100644
--- a/arch/cris/arch-v10/drivers/axisflashmap.c
+++ b/arch/cris/arch-v10/drivers/axisflashmap.c
@@ -312,12 +312,12 @@
"%s: Probing a 0x%08lx bytes large window at 0x%08lx.\n",
map_cs->name, map_cs->size, map_cs->map_priv_1);
-#ifdef CONFIG_MTD_AMDSTD
- mtd_cs = do_map_probe("amd_flash", map_cs);
-#endif
#ifdef CONFIG_MTD_CFI
+ mtd_cs = do_map_probe("cfi_probe", map_cs);
+#endif
+#ifdef CONFIG_MTD_JEDECPROBE
if (!mtd_cs) {
- mtd_cs = do_map_probe("cfi_probe", map_cs);
+ mtd_cs = do_map_probe("jedec_probe", map_cs);
}
#endif
diff --git a/arch/cris/arch-v10/drivers/gpio.c b/arch/cris/arch-v10/drivers/gpio.c
index f389ed6..0d347a7 100644
--- a/arch/cris/arch-v10/drivers/gpio.c
+++ b/arch/cris/arch-v10/drivers/gpio.c
@@ -297,8 +297,10 @@
data = *R_PORT_PB_DATA;
else if (priv->minor == GPIO_MINOR_G)
data = *R_PORT_G_DATA;
- else
+ else {
+ spin_unlock(&gpio_lock);
return 0;
+ }
if ((data & priv->highalarm) ||
(~data & priv->lowalarm)) {
@@ -381,18 +383,21 @@
ssize_t retval = count;
if (priv->minor !=GPIO_MINOR_A && priv->minor != GPIO_MINOR_B) {
- return -EFAULT;
+ retval = -EFAULT;
+ goto out;
}
if (!access_ok(VERIFY_READ, buf, count)) {
- return -EFAULT;
+ retval = -EFAULT;
+ goto out;
}
clk_mask = priv->clk_mask;
data_mask = priv->data_mask;
/* It must have been configured using the IO_CFG_WRITE_MODE */
/* Perhaps a better error code? */
if (clk_mask == 0 || data_mask == 0) {
- return -EPERM;
+ retval = -EPERM;
+ goto out;
}
write_msb = priv->write_msb;
D(printk("gpio_write: %lu to data 0x%02X clk 0x%02X msb: %i\n",count, data_mask, clk_mask, write_msb));
@@ -425,6 +430,7 @@
}
}
}
+out:
spin_unlock(&gpio_lock);
return retval;
}
@@ -506,6 +512,7 @@
while (p) {
if (p->highalarm | p->lowalarm) {
gpio_some_alarms = 1;
+ spin_unlock(&gpio_lock);
return 0;
}
p = p->next;
diff --git a/arch/cris/arch-v10/kernel/entry.S b/arch/cris/arch-v10/kernel/entry.S
index c5844cb..ec62c95 100644
--- a/arch/cris/arch-v10/kernel/entry.S
+++ b/arch/cris/arch-v10/kernel/entry.S
@@ -500,9 +500,8 @@
;; deal with pending signals and notify-resume requests
move.d $r9, $r10 ; do_notify_resume syscall/irq param
- moveq 0, $r11 ; oldset param - 0 in this case
- move.d $sp, $r12 ; the regs param
- move.d $r1, $r13 ; the thread_info_flags parameter
+ move.d $sp, $r11 ; the regs param
+ move.d $r1, $r12 ; the thread_info_flags parameter
jsr do_notify_resume
ba _Rexit
@@ -678,13 +677,19 @@
push $r10 ; push orig_r10
clear.d [$sp=$sp-4] ; frametype == 0, normal frame
+ ;; If there is a glitch on the NMI pin shorter than ~100ns
+ ;; (i.e. non-active by the time we get here) then the nmi_pin bit
+ ;; in R_IRQ_MASK0_RD will already be cleared. The watchdog_nmi bit
+ ;; is cleared by us however (when feeding the watchdog), which is why
+ ;; we use that bit to determine what brought us here.
+
move.d [R_IRQ_MASK0_RD], $r1 ; External NMI or watchdog?
- and.d 0x80000000, $r1
- beq wdog
+ and.d (1<<30), $r1
+ bne wdog
move.d $sp, $r10
jsr handle_nmi
setf m ; Enable NMI again
- retb ; Return from NMI
+ ba _Rexit ; Return the standard way
nop
wdog:
#if defined(CONFIG_ETRAX_WATCHDOG) && !defined(CONFIG_SVINTO_SIM)
@@ -775,22 +780,9 @@
push $r10 ; push orig_r10
clear.d [$sp=$sp-4] ; frametype == 0, normal frame
- moveq 2, $r2 ; first bit we care about is the timer0 irq
- move.d [R_VECT_MASK_RD], $r0; read the irq bits that triggered the multiple irq
- move.d $r0, [R_VECT_MASK_CLR] ; Block all active IRQs
-1:
- btst $r2, $r0 ; check for the irq given by bit r2
- bpl 2f
- move.d $r2, $r10 ; First argument to do_IRQ
- move.d $sp, $r11 ; second argument to do_IRQ
- jsr do_IRQ
-2:
- addq 1, $r2 ; next vector bit
- cmp.b 32, $r2
- bne 1b ; process all irq's up to and including number 31
- moveq 0, $r9 ; make ret_from_intr realise we came from an ir
+ move.d $sp, $r10
+ jsr do_multiple_IRQ
- move.d $r0, [R_VECT_MASK_SET] ; Unblock all the IRQs
jump ret_from_intr
do_sigtrap:
@@ -837,6 +829,13 @@
ba do_sigtrap ; SIGTRAP the offending process.
pop $dccr ; Restore dccr in delay slot.
+ .global kernel_execve
+kernel_execve:
+ move.d __NR_execve, $r9
+ break 13
+ ret
+ nop
+
.data
hw_bp_trigs:
@@ -1135,6 +1134,42 @@
.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
+ .long sys_move_pages
+ .long sys_getcpu
+ .long sys_epoll_pwait
+ .long sys_utimensat /* 320 */
+ .long sys_signalfd
+ .long sys_timerfd
+ .long sys_eventfd
+ .long sys_fallocate
/*
* NOTE!! This doesn't have to be exact - we just have
diff --git a/arch/cris/arch-v10/kernel/fasttimer.c b/arch/cris/arch-v10/kernel/fasttimer.c
index d3ea052..c1a3a21 100644
--- a/arch/cris/arch-v10/kernel/fasttimer.c
+++ b/arch/cris/arch-v10/kernel/fasttimer.c
@@ -1,97 +1,9 @@
-/* $Id: fasttimer.c,v 1.9 2005/03/04 08:16:16 starvik Exp $
+/*
* linux/arch/cris/kernel/fasttimer.c
*
* Fast timers for ETRAX100/ETRAX100LX
- * This may be useful in other OS than Linux so use 2 space indentation...
*
- * $Log: fasttimer.c,v $
- * Revision 1.9 2005/03/04 08:16:16 starvik
- * Merge of Linux 2.6.11.
- *
- * Revision 1.8 2005/01/05 06:09:29 starvik
- * cli()/sti() will be obsolete in 2.6.11.
- *
- * Revision 1.7 2005/01/03 13:35:46 starvik
- * Removed obsolete stuff.
- * Mark fast timer IRQ as not shared.
- *
- * Revision 1.6 2004/05/14 10:18:39 starvik
- * Export fast_timer_list
- *
- * Revision 1.5 2004/05/14 07:58:01 starvik
- * Merge of changes from 2.4
- *
- * Revision 1.4 2003/07/04 08:27:41 starvik
- * Merge of Linux 2.5.74
- *
- * Revision 1.3 2002/12/12 08:26:32 starvik
- * Don't use C-comments inside CVS comments
- *
- * Revision 1.2 2002/12/11 15:42:02 starvik
- * Extracted v10 (ETRAX 100LX) specific stuff from arch/cris/kernel/
- *
- * Revision 1.1 2002/11/18 07:58:06 starvik
- * Fast timers (from Linux 2.4)
- *
- * Revision 1.5 2002/10/15 06:21:39 starvik
- * Added call to init_waitqueue_head
- *
- * Revision 1.4 2002/05/28 17:47:59 johana
- * Added del_fast_timer()
- *
- * Revision 1.3 2002/05/28 16:16:07 johana
- * Handle empty fast_timer_list
- *
- * Revision 1.2 2002/05/27 15:38:42 johana
- * Made it compile without warnings on Linux 2.4.
- * (includes, wait_queue, PROC_FS and snprintf)
- *
- * Revision 1.1 2002/05/27 15:32:25 johana
- * arch/etrax100/kernel/fasttimer.c v1.8 from the elinux tree.
- *
- * Revision 1.8 2001/11/27 13:50:40 pkj
- * Disable interrupts while stopping the timer and while modifying the
- * list of active timers in timer1_handler() as it may be interrupted
- * by other interrupts (e.g., the serial interrupt) which may add fast
- * timers.
- *
- * Revision 1.7 2001/11/22 11:50:32 pkj
- * * Only store information about the last 16 timers.
- * * proc_fasttimer_read() now uses an allocated buffer, since it
- * requires more space than just a page even for only writing the
- * last 16 timers. The buffer is only allocated on request, so
- * unless /proc/fasttimer is read, it is never allocated.
- * * Renamed fast_timer_started to fast_timers_started to match
- * fast_timers_added and fast_timers_expired.
- * * Some clean-up.
- *
- * Revision 1.6 2000/12/13 14:02:08 johana
- * Removed volatile for fast_timer_list
- *
- * Revision 1.5 2000/12/13 13:55:35 johana
- * Added DEBUG_LOG, added som cli() and cleanup
- *
- * Revision 1.4 2000/12/05 13:48:50 johana
- * Added range check when writing proc file, modified timer int handling
- *
- * Revision 1.3 2000/11/23 10:10:20 johana
- * More debug/logging possibilities.
- * Moved GET_JIFFIES_USEC() to timex.h and time.c
- *
- * Revision 1.2 2000/11/01 13:41:04 johana
- * Clean up and bugfixes.
- * Created new do_gettimeofday_fast() that gets a timeval struct
- * with time based on jiffies and *R_TIMER0_DATA, uses a table
- * for fast conversion of timer value to microseconds.
- * (Much faster the standard do_gettimeofday() and we don't really
- * want to use the true time - we want the "uptime" so timers don't screw up
- * when we change the time.
- * TODO: Add efficient support for continuous timers as well.
- *
- * Revision 1.1 2000/10/26 15:49:16 johana
- * Added fasttimer, highresolution timers.
- *
- * Copyright (C) 2000,2001 2002 Axis Communications AB, Lund, Sweden
+ * Copyright (C) 2000-2007 Axis Communications AB, Lund, Sweden
*/
#include <linux/errno.h>
@@ -125,7 +37,7 @@
#ifdef FAST_TIMER_SANITY_CHECKS
#define SANITYCHECK(x) x
-static int sanity_failed = 0;
+static int sanity_failed;
#else
#define SANITYCHECK(x)
#endif
@@ -134,15 +46,13 @@
#define D2(x)
#define DP(x)
-#define __INLINE__ inline
-
-static int fast_timer_running = 0;
-static int fast_timers_added = 0;
-static int fast_timers_started = 0;
-static int fast_timers_expired = 0;
-static int fast_timers_deleted = 0;
-static int fast_timer_is_init = 0;
-static int fast_timer_ints = 0;
+static unsigned int fast_timer_running;
+static unsigned int fast_timers_added;
+static unsigned int fast_timers_started;
+static unsigned int fast_timers_expired;
+static unsigned int fast_timers_deleted;
+static unsigned int fast_timer_is_init;
+static unsigned int fast_timer_ints;
struct fast_timer *fast_timer_list = NULL;
@@ -150,8 +60,8 @@
#define DEBUG_LOG_MAX 128
static const char * debug_log_string[DEBUG_LOG_MAX];
static unsigned long debug_log_value[DEBUG_LOG_MAX];
-static int debug_log_cnt = 0;
-static int debug_log_cnt_wrapped = 0;
+static unsigned int debug_log_cnt;
+static unsigned int debug_log_cnt_wrapped;
#define DEBUG_LOG(string, value) \
{ \
@@ -206,45 +116,29 @@
int timer_delay_settings[NUM_TIMER_STATS];
/* Not true gettimeofday, only checks the jiffies (uptime) + useconds */
-void __INLINE__ do_gettimeofday_fast(struct timeval *tv)
+inline void do_gettimeofday_fast(struct fasttime_t *tv)
{
- unsigned long sec = jiffies;
- unsigned long usec = GET_JIFFIES_USEC();
-
- usec += (sec % HZ) * (1000000 / HZ);
- sec = sec / HZ;
-
- if (usec > 1000000)
- {
- usec -= 1000000;
- sec++;
- }
- tv->tv_sec = sec;
- tv->tv_usec = usec;
+ tv->tv_jiff = jiffies;
+ tv->tv_usec = GET_JIFFIES_USEC();
}
-int __INLINE__ timeval_cmp(struct timeval *t0, struct timeval *t1)
+inline int fasttime_cmp(struct fasttime_t *t0, struct fasttime_t *t1)
{
- if (t0->tv_sec < t1->tv_sec)
- {
- return -1;
- }
- else if (t0->tv_sec > t1->tv_sec)
- {
- return 1;
- }
- if (t0->tv_usec < t1->tv_usec)
- {
- return -1;
- }
- else if (t0->tv_usec > t1->tv_usec)
- {
- return 1;
- }
- return 0;
+ /* Compare jiffies. Takes care of wrapping */
+ if (time_before(t0->tv_jiff, t1->tv_jiff))
+ return -1;
+ else if (time_after(t0->tv_jiff, t1->tv_jiff))
+ return 1;
+
+ /* Compare us */
+ if (t0->tv_usec < t1->tv_usec)
+ return -1;
+ else if (t0->tv_usec > t1->tv_usec)
+ return 1;
+ return 0;
}
-void __INLINE__ start_timer1(unsigned long delay_us)
+inline void start_timer1(unsigned long delay_us)
{
int freq_index = 0; /* This is the lowest resolution */
unsigned long upper_limit = MAX_DELAY_US;
@@ -285,7 +179,7 @@
timer_freq_settings[fast_timers_started % NUM_TIMER_STATS] = freq_index;
timer_delay_settings[fast_timers_started % NUM_TIMER_STATS] = delay_us;
- D1(printk("start_timer1 : %d us freq: %i div: %i\n",
+ D1(printk(KERN_DEBUG "start_timer1 : %d us freq: %i div: %i\n",
delay_us, freq_index, div));
/* Clear timer1 irq */
*R_IRQ_MASK0_CLR = IO_STATE(R_IRQ_MASK0_CLR, timer1, clr);
@@ -340,7 +234,7 @@
printk(KERN_WARNING
"timer name: %s data: 0x%08lX already in list!\n", name, data);
sanity_failed++;
- return;
+ goto done;
}
else
{
@@ -356,11 +250,11 @@
t->name = name;
t->tv_expires.tv_usec = t->tv_set.tv_usec + delay_us % 1000000;
- t->tv_expires.tv_sec = t->tv_set.tv_sec + delay_us / 1000000;
+ t->tv_expires.tv_jiff = t->tv_set.tv_jiff + delay_us / 1000000 / HZ;
if (t->tv_expires.tv_usec > 1000000)
{
t->tv_expires.tv_usec -= 1000000;
- t->tv_expires.tv_sec++;
+ t->tv_expires.tv_jiff += HZ;
}
#ifdef FAST_TIMER_LOG
timer_added_log[fast_timers_added % NUM_TIMER_STATS] = *t;
@@ -368,7 +262,7 @@
fast_timers_added++;
/* Check if this should timeout before anything else */
- if (tmp == NULL || timeval_cmp(&t->tv_expires, &tmp->tv_expires) < 0)
+ if (tmp == NULL || fasttime_cmp(&t->tv_expires, &tmp->tv_expires) < 0)
{
/* Put first in list and modify the timer value */
t->prev = NULL;
@@ -384,8 +278,8 @@
start_timer1(delay_us);
} else {
/* Put in correct place in list */
- while (tmp->next &&
- timeval_cmp(&t->tv_expires, &tmp->next->tv_expires) > 0)
+ while (tmp->next && fasttime_cmp(&t->tv_expires,
+ &tmp->next->tv_expires) > 0)
{
tmp = tmp->next;
}
@@ -401,6 +295,7 @@
D2(printk("start_one_shot_timer: %d us done\n", delay_us));
+done:
local_irq_restore(flags);
} /* start_one_shot_timer */
@@ -444,11 +339,18 @@
/* Timer 1 interrupt handler */
static irqreturn_t
-timer1_handler(int irq, void *dev_id, struct pt_regs *regs)
+timer1_handler(int irq, void *dev_id)
{
struct fast_timer *t;
unsigned long flags;
+ /* We keep interrupts disabled not only when we modify the
+ * fast timer list, but any time we hold a reference to a
+ * timer in the list, since del_fast_timer may be called
+ * from (another) interrupt context. Thus, the only time
+ * when interrupts are enabled is when calling the timer
+ * callback function.
+ */
local_irq_save(flags);
/* Clear timer1 irq */
@@ -466,18 +368,19 @@
fast_timer_running = 0;
fast_timer_ints++;
- local_irq_restore(flags);
-
t = fast_timer_list;
while (t)
{
- struct timeval tv;
+ struct fasttime_t tv;
+ fast_timer_function_type *f;
+ unsigned long d;
/* Has it really expired? */
do_gettimeofday_fast(&tv);
- D1(printk("t: %is %06ius\n", tv.tv_sec, tv.tv_usec));
+ D1(printk(KERN_DEBUG "t: %is %06ius\n",
+ tv.tv_jiff, tv.tv_usec));
- if (timeval_cmp(&t->tv_expires, &tv) <= 0)
+ if (fasttime_cmp(&t->tv_expires, &tv) <= 0)
{
/* Yes it has expired */
#ifdef FAST_TIMER_LOG
@@ -486,7 +389,6 @@
fast_timers_expired++;
/* Remove this timer before call, since it may reuse the timer */
- local_irq_save(flags);
if (t->prev)
{
t->prev->next = t->next;
@@ -501,16 +403,23 @@
}
t->prev = NULL;
t->next = NULL;
- local_irq_restore(flags);
- if (t->function != NULL)
- {
- t->function(t->data);
- }
- else
- {
+ /* Save function callback data before enabling
+ * interrupts, since the timer may be removed and
+ * we don't know how it was allocated
+ * (e.g. ->function and ->data may become overwritten
+ * after deletion if the timer was stack-allocated).
+ */
+ f = t->function;
+ d = t->data;
+
+ if (f != NULL) {
+ /* Run callback with interrupts enabled. */
+ local_irq_restore(flags);
+ f(d);
+ local_irq_save(flags);
+ } else
DEBUG_LOG("!timer1 %i function==NULL!\n", fast_timer_ints);
- }
}
else
{
@@ -518,16 +427,20 @@
D1(printk(".\n"));
}
- local_irq_save(flags);
if ((t = fast_timer_list) != NULL)
{
/* Start next timer.. */
- long us;
- struct timeval tv;
+ long us = 0;
+ struct fasttime_t tv;
do_gettimeofday_fast(&tv);
- us = ((t->tv_expires.tv_sec - tv.tv_sec) * 1000000 +
- t->tv_expires.tv_usec - tv.tv_usec);
+
+ /* time_after_eq takes care of wrapping */
+ if (time_after_eq(t->tv_expires.tv_jiff, tv.tv_jiff))
+ us = ((t->tv_expires.tv_jiff - tv.tv_jiff) *
+ 1000000 / HZ + t->tv_expires.tv_usec -
+ tv.tv_usec);
+
if (us > 0)
{
if (!fast_timer_running)
@@ -537,7 +450,6 @@
#endif
start_timer1(us);
}
- local_irq_restore(flags);
break;
}
else
@@ -548,9 +460,10 @@
D1(printk("e! %d\n", us));
}
}
- local_irq_restore(flags);
}
+ local_irq_restore(flags);
+
if (!t)
{
D1(printk("t1 stop!\n"));
@@ -575,28 +488,17 @@
void schedule_usleep(unsigned long us)
{
struct fast_timer t;
-#ifdef DECLARE_WAITQUEUE
wait_queue_head_t sleep_wait;
init_waitqueue_head(&sleep_wait);
- {
- DECLARE_WAITQUEUE(wait, current);
-#else
- struct wait_queue *sleep_wait = NULL;
- struct wait_queue wait = { current, NULL };
-#endif
D1(printk("schedule_usleep(%d)\n", us));
- add_wait_queue(&sleep_wait, &wait);
- set_current_state(TASK_INTERRUPTIBLE);
start_one_shot_timer(&t, wake_up_func, (unsigned long)&sleep_wait, us,
"usleep");
- schedule();
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&sleep_wait, &wait);
+ /* Uninterruptible sleep on the fast timer. (The condition is somewhat
+ * redundant since the timer is what wakes us up.) */
+ wait_event(sleep_wait, !fast_timer_pending(&t));
+
D1(printk("done schedule_usleep(%d)\n", us));
-#ifdef DECLARE_WAITQUEUE
- }
-#endif
}
#ifdef CONFIG_PROC_FS
@@ -616,7 +518,7 @@
unsigned long flags;
int i = 0;
int num_to_show;
- struct timeval tv;
+ struct fasttime_t tv;
struct fast_timer *t, *nextt;
static char *bigbuf = NULL;
static unsigned long used;
@@ -624,7 +526,8 @@
if (!bigbuf && !(bigbuf = vmalloc(BIG_BUF_SIZE)))
{
used = 0;
- bigbuf[0] = '\0';
+ if (buf)
+ buf[0] = '\0';
return 0;
}
@@ -646,7 +549,7 @@
used += sprintf(bigbuf + used, "Fast timer running: %s\n",
fast_timer_running ? "yes" : "no");
used += sprintf(bigbuf + used, "Current time: %lu.%06lu\n",
- (unsigned long)tv.tv_sec,
+ (unsigned long)tv.tv_jiff,
(unsigned long)tv.tv_usec);
#ifdef FAST_TIMER_SANITY_CHECKS
used += sprintf(bigbuf + used, "Sanity failed: %i\n",
@@ -696,9 +599,9 @@
"d: %6li us data: 0x%08lX"
"\n",
t->name,
- (unsigned long)t->tv_set.tv_sec,
+ (unsigned long)t->tv_set.tv_jiff,
(unsigned long)t->tv_set.tv_usec,
- (unsigned long)t->tv_expires.tv_sec,
+ (unsigned long)t->tv_expires.tv_jiff,
(unsigned long)t->tv_expires.tv_usec,
t->delay_us,
t->data
@@ -718,9 +621,9 @@
"d: %6li us data: 0x%08lX"
"\n",
t->name,
- (unsigned long)t->tv_set.tv_sec,
+ (unsigned long)t->tv_set.tv_jiff,
(unsigned long)t->tv_set.tv_usec,
- (unsigned long)t->tv_expires.tv_sec,
+ (unsigned long)t->tv_expires.tv_jiff,
(unsigned long)t->tv_expires.tv_usec,
t->delay_us,
t->data
@@ -738,9 +641,9 @@
"d: %6li us data: 0x%08lX"
"\n",
t->name,
- (unsigned long)t->tv_set.tv_sec,
+ (unsigned long)t->tv_set.tv_jiff,
(unsigned long)t->tv_set.tv_usec,
- (unsigned long)t->tv_expires.tv_sec,
+ (unsigned long)t->tv_expires.tv_jiff,
(unsigned long)t->tv_expires.tv_usec,
t->delay_us,
t->data
@@ -761,15 +664,15 @@
/* " func: 0x%08lX" */
"\n",
t->name,
- (unsigned long)t->tv_set.tv_sec,
+ (unsigned long)t->tv_set.tv_jiff,
(unsigned long)t->tv_set.tv_usec,
- (unsigned long)t->tv_expires.tv_sec,
+ (unsigned long)t->tv_expires.tv_jiff,
(unsigned long)t->tv_expires.tv_usec,
t->delay_us,
t->data
/* , t->function */
);
- local_irq_disable();
+ local_irq_save(flags);
if (t->next != nextt)
{
printk(KERN_WARNING "timer removed!\n");
@@ -798,7 +701,7 @@
static struct fast_timer tr[10];
static int exp_num[10];
-static struct timeval tv_exp[100];
+static struct fasttime_t tv_exp[100];
static void test_timeout(unsigned long data)
{
@@ -836,7 +739,7 @@
int prev_num;
int j;
- struct timeval tv, tv0, tv1, tv2;
+ struct fasttime_t tv, tv0, tv1, tv2;
printk("fast_timer_test() start\n");
do_gettimeofday_fast(&tv);
@@ -849,7 +752,8 @@
{
do_gettimeofday_fast(&tv_exp[j]);
}
- printk("fast_timer_test() %is %06i\n", tv.tv_sec, tv.tv_usec);
+ printk(KERN_DEBUG "fast_timer_test() %is %06i\n",
+ tv.tv_jiff, tv.tv_usec);
for (j = 0; j < 1000; j++)
{
@@ -858,12 +762,12 @@
}
for (j = 0; j < 100; j++)
{
- printk("%i.%i %i.%i %i.%i %i.%i %i.%i\n",
- tv_exp[j].tv_sec,tv_exp[j].tv_usec,
- tv_exp[j+1].tv_sec,tv_exp[j+1].tv_usec,
- tv_exp[j+2].tv_sec,tv_exp[j+2].tv_usec,
- tv_exp[j+3].tv_sec,tv_exp[j+3].tv_usec,
- tv_exp[j+4].tv_sec,tv_exp[j+4].tv_usec);
+ printk(KERN_DEBUG "%i.%i %i.%i %i.%i %i.%i %i.%i\n",
+ tv_exp[j].tv_jiff, tv_exp[j].tv_usec,
+ tv_exp[j+1].tv_jiff, tv_exp[j+1].tv_usec,
+ tv_exp[j+2].tv_jiff, tv_exp[j+2].tv_usec,
+ tv_exp[j+3].tv_jiff, tv_exp[j+3].tv_usec,
+ tv_exp[j+4].tv_jiff, tv_exp[j+4].tv_usec);
j += 4;
}
do_gettimeofday_fast(&tv0);
@@ -895,9 +799,12 @@
}
}
do_gettimeofday_fast(&tv2);
- printk("Timers started %is %06i\n", tv0.tv_sec, tv0.tv_usec);
- printk("Timers started at %is %06i\n", tv1.tv_sec, tv1.tv_usec);
- printk("Timers done %is %06i\n", tv2.tv_sec, tv2.tv_usec);
+ printk(KERN_DEBUG "Timers started %is %06i\n",
+ tv0.tv_jiff, tv0.tv_usec);
+ printk(KERN_DEBUG "Timers started at %is %06i\n",
+ tv1.tv_jiff, tv1.tv_usec);
+ printk(KERN_DEBUG "Timers done %is %06i\n",
+ tv2.tv_jiff, tv2.tv_usec);
DP(printk("buf0:\n");
printk(buf0);
printk("buf1:\n");
@@ -919,9 +826,9 @@
printk("%-10s set: %6is %06ius exp: %6is %06ius "
"data: 0x%08X func: 0x%08X\n",
t->name,
- t->tv_set.tv_sec,
+ t->tv_set.tv_jiff,
t->tv_set.tv_usec,
- t->tv_expires.tv_sec,
+ t->tv_expires.tv_jiff,
t->tv_expires.tv_usec,
t->data,
t->function
@@ -929,10 +836,12 @@
printk(" del: %6ius did exp: %6is %06ius as #%i error: %6li\n",
t->delay_us,
- tv_exp[j].tv_sec,
+ tv_exp[j].tv_jiff,
tv_exp[j].tv_usec,
exp_num[j],
- (tv_exp[j].tv_sec - t->tv_expires.tv_sec)*1000000 + tv_exp[j].tv_usec - t->tv_expires.tv_usec);
+ (tv_exp[j].tv_jiff - t->tv_expires.tv_jiff) *
+ 1000000 + tv_exp[j].tv_usec -
+ t->tv_expires.tv_usec);
}
proc_fasttimer_read(buf5, NULL, 0, 0, 0);
printk("buf5 after all done:\n");
@@ -942,7 +851,7 @@
#endif
-void fast_timer_init(void)
+int fast_timer_init(void)
{
/* For some reason, request_irq() hangs when called froom time_init() */
if (!fast_timer_is_init)
@@ -975,4 +884,6 @@
fast_timer_test();
#endif
}
+ return 0;
}
+__initcall(fast_timer_init);
diff --git a/arch/cris/arch-v10/kernel/io_interface_mux.c b/arch/cris/arch-v10/kernel/io_interface_mux.c
index 29d48ad..3a9114e 100644
--- a/arch/cris/arch-v10/kernel/io_interface_mux.c
+++ b/arch/cris/arch-v10/kernel/io_interface_mux.c
@@ -304,7 +304,7 @@
static struct if_group *get_group(const unsigned char groups)
{
int i;
- for (i = 0; i < sizeof(if_groups)/sizeof(struct if_group); i++) {
+ for (i = 0; i < ARRAY_SIZE(if_groups); i++) {
if (groups & if_groups[i].group) {
return &if_groups[i];
}
diff --git a/arch/cris/arch-v10/kernel/irq.c b/arch/cris/arch-v10/kernel/irq.c
index 845c95f6..e06ab00 100644
--- a/arch/cris/arch-v10/kernel/irq.c
+++ b/arch/cris/arch-v10/kernel/irq.c
@@ -12,10 +12,16 @@
*/
#include <asm/irq.h>
+#include <asm/current.h>
#include <linux/irq.h>
+#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/init.h>
+/* From kgdb.c. */
+extern void kgdb_init(void);
+extern void breakpoint(void);
+
#define mask_irq(irq_nr) (*R_VECT_MASK_CLR = 1 << (irq_nr));
#define unmask_irq(irq_nr) (*R_VECT_MASK_SET = 1 << (irq_nr));
@@ -75,8 +81,8 @@
BUILD_IRQ(13, 0x2000)
void mmu_bus_fault(void); /* IRQ 14 is the bus fault interrupt */
void multiple_interrupt(void); /* IRQ 15 is the multiple IRQ interrupt */
-BUILD_IRQ(16, 0x10000)
-BUILD_IRQ(17, 0x20000)
+BUILD_IRQ(16, 0x10000 | 0x20000) /* ethernet tx interrupt needs to block rx */
+BUILD_IRQ(17, 0x20000 | 0x10000) /* ...and vice versa */
BUILD_IRQ(18, 0x40000)
BUILD_IRQ(19, 0x80000)
BUILD_IRQ(20, 0x100000)
@@ -147,6 +153,55 @@
void do_sigtrap(void); /* from entry.S */
void gdb_handle_breakpoint(void); /* from entry.S */
+extern void do_IRQ(int irq, struct pt_regs * regs);
+
+/* Handle multiple IRQs */
+void do_multiple_IRQ(struct pt_regs* regs)
+{
+ int bit;
+ unsigned masked;
+ unsigned mask;
+ unsigned ethmask = 0;
+
+ /* Get interrupts to mask and handle */
+ mask = masked = *R_VECT_MASK_RD;
+
+ /* Never mask timer IRQ */
+ mask &= ~(IO_MASK(R_VECT_MASK_RD, timer0));
+
+ /*
+ * If either ethernet interrupt (rx or tx) is active then block
+ * the other one too. Unblock afterwards also.
+ */
+ if (mask &
+ (IO_STATE(R_VECT_MASK_RD, dma0, active) |
+ IO_STATE(R_VECT_MASK_RD, dma1, active))) {
+ ethmask = (IO_MASK(R_VECT_MASK_RD, dma0) |
+ IO_MASK(R_VECT_MASK_RD, dma1));
+ }
+
+ /* Block them */
+ *R_VECT_MASK_CLR = (mask | ethmask);
+
+ /* An extra irq_enter here to prevent softIRQs to run after
+ * each do_IRQ. This will decrease the interrupt latency.
+ */
+ irq_enter();
+
+ /* Handle all IRQs */
+ for (bit = 2; bit < 32; bit++) {
+ if (masked & (1 << bit)) {
+ do_IRQ(bit, regs);
+ }
+ }
+
+ /* This irq_exit() will trigger the soft IRQs. */
+ irq_exit();
+
+ /* Unblock the IRQs again */
+ *R_VECT_MASK_SET = (masked | ethmask);
+}
+
/* init_IRQ() is called by start_kernel and is responsible for fixing IRQ masks and
setting the irq vector table.
*/
diff --git a/arch/cris/arch-v10/kernel/setup.c b/arch/cris/arch-v10/kernel/setup.c
index 682ef95..de27b50 100644
--- a/arch/cris/arch-v10/kernel/setup.c
+++ b/arch/cris/arch-v10/kernel/setup.c
@@ -13,6 +13,7 @@
#include <linux/seq_file.h>
#include <linux/proc_fs.h>
#include <linux/delay.h>
+#include <linux/param.h>
#ifdef CONFIG_PROC_FS
#define HAS_FPU 0x0001
@@ -56,8 +57,8 @@
revision = rdvr();
- if (revision >= sizeof cpu_info/sizeof *cpu_info)
- info = &cpu_info[sizeof cpu_info/sizeof *cpu_info - 1];
+ if (revision >= ARRAY_SIZE(cpu_info))
+ info = &cpu_info[ARRAY_SIZE(cpu_info) - 1];
else
info = &cpu_info[revision];
diff --git a/arch/cris/arch-v10/kernel/time.c b/arch/cris/arch-v10/kernel/time.c
index 575a14b..5976f61 100644
--- a/arch/cris/arch-v10/kernel/time.c
+++ b/arch/cris/arch-v10/kernel/time.c
@@ -1,5 +1,4 @@
-/* $Id: time.c,v 1.5 2004/09/29 06:12:46 starvik Exp $
- *
+/*
* linux/arch/cris/arch-v10/kernel/time.c
*
* Copyright (C) 1991, 1992, 1995 Linus Torvalds
@@ -20,6 +19,7 @@
#include <asm/io.h>
#include <asm/delay.h>
#include <asm/rtc.h>
+#include <asm/irq_regs.h>
/* define this if you need to use print_timestamp */
/* it will make jiffies at 96 hz instead of 100 hz though */
@@ -201,8 +201,9 @@
extern void cris_do_profile(struct pt_regs *regs);
static inline irqreturn_t
-timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+timer_interrupt(int irq, void *dev_id)
{
+ struct pt_regs *regs = get_irq_regs();
/* acknowledge the timer irq */
#ifdef USE_CASCADE_TIMERS
@@ -221,9 +222,11 @@
#endif
/* reset watchdog otherwise it resets us! */
-
reset_watchdog();
+ /* Update statistics. */
+ update_process_times(user_mode(regs));
+
/* call the real timer interrupt handler */
do_timer(1);
diff --git a/arch/cris/arch-v10/lib/memset.c b/arch/cris/arch-v10/lib/memset.c
index 82bb668..42c1101 100644
--- a/arch/cris/arch-v10/lib/memset.c
+++ b/arch/cris/arch-v10/lib/memset.c
@@ -66,7 +66,7 @@
{
register char *dst __asm__ ("r13") = pdst;
-
+
/* This is NONPORTABLE, but since this whole routine is */
/* grossly nonportable that doesn't matter. */
@@ -110,52 +110,52 @@
If you want to check that the allocation was right; then
check the equalities in the first comment. It should say
"r13=r13, r12=r12, r11=r11" */
- __asm__ volatile ("
- ;; Check that the following is true (same register names on
- ;; both sides of equal sign, as in r8=r8):
- ;; %0=r13, %1=r12, %4=r11
- ;;
- ;; Save the registers we'll clobber in the movem process
- ;; on the stack. Don't mention them to gcc, it will only be
- ;; upset.
- subq 11*4,$sp
- movem $r10,[$sp]
-
- move.d $r11,$r0
- move.d $r11,$r1
- move.d $r11,$r2
- move.d $r11,$r3
- move.d $r11,$r4
- move.d $r11,$r5
- move.d $r11,$r6
- move.d $r11,$r7
- move.d $r11,$r8
- move.d $r11,$r9
- move.d $r11,$r10
-
- ;; Now we've got this:
- ;; r13 - dst
- ;; r12 - n
-
- ;; Update n for the first loop
- subq 12*4,$r12
-0:
- subq 12*4,$r12
- bge 0b
- movem $r11,[$r13+]
-
- addq 12*4,$r12 ;; compensate for last loop underflowing n
-
- ;; Restore registers from stack
- movem [$sp+],$r10"
+ __asm__ volatile ("\n\
+ ;; Check that the following is true (same register names on \n\
+ ;; both sides of equal sign, as in r8=r8): \n\
+ ;; %0=r13, %1=r12, %4=r11 \n\
+ ;; \n\
+ ;; Save the registers we'll clobber in the movem process \n\
+ ;; on the stack. Don't mention them to gcc, it will only be \n\
+ ;; upset. \n\
+ subq 11*4,$sp \n\
+ movem $r10,[$sp] \n\
+ \n\
+ move.d $r11,$r0 \n\
+ move.d $r11,$r1 \n\
+ move.d $r11,$r2 \n\
+ move.d $r11,$r3 \n\
+ move.d $r11,$r4 \n\
+ move.d $r11,$r5 \n\
+ move.d $r11,$r6 \n\
+ move.d $r11,$r7 \n\
+ move.d $r11,$r8 \n\
+ move.d $r11,$r9 \n\
+ move.d $r11,$r10 \n\
+ \n\
+ ;; Now we've got this: \n\
+ ;; r13 - dst \n\
+ ;; r12 - n \n\
+ \n\
+ ;; Update n for the first loop \n\
+ subq 12*4,$r12 \n\
+0: \n\
+ subq 12*4,$r12 \n\
+ bge 0b \n\
+ movem $r11,[$r13+] \n\
+ \n\
+ addq 12*4,$r12 ;; compensate for last loop underflowing n \n\
+ \n\
+ ;; Restore registers from stack \n\
+ movem [$sp+],$r10"
/* Outputs */ : "=r" (dst), "=r" (n)
/* Inputs */ : "0" (dst), "1" (n), "r" (lc));
-
+
}
/* Either we directly starts copying, using dword copying
- in a loop, or we copy as much as possible with 'movem'
+ in a loop, or we copy as much as possible with 'movem'
and then the last block (<44 bytes) is copied here.
This will work since 'movem' will have updated src,dst,n. */
diff --git a/arch/cris/arch-v10/lib/string.c b/arch/cris/arch-v10/lib/string.c
index 15d6662..7161a2b 100644
--- a/arch/cris/arch-v10/lib/string.c
+++ b/arch/cris/arch-v10/lib/string.c
@@ -95,33 +95,33 @@
If you want to check that the allocation was right; then
check the equalities in the first comment. It should say
"r13=r13, r11=r11, r12=r12" */
- __asm__ volatile ("
- ;; Check that the following is true (same register names on
- ;; both sides of equal sign, as in r8=r8):
- ;; %0=r13, %1=r11, %2=r12
- ;;
- ;; Save the registers we'll use in the movem process
- ;; on the stack.
- subq 11*4,$sp
- movem $r10,[$sp]
-
- ;; Now we've got this:
- ;; r11 - src
- ;; r13 - dst
- ;; r12 - n
-
- ;; Update n for the first loop
- subq 44,$r12
-0:
- movem [$r11+],$r10
- subq 44,$r12
- bge 0b
- movem $r10,[$r13+]
-
- addq 44,$r12 ;; compensate for last loop underflowing n
-
- ;; Restore registers from stack
- movem [$sp+],$r10"
+ __asm__ volatile ("\n\
+ ;; Check that the following is true (same register names on \n\
+ ;; both sides of equal sign, as in r8=r8): \n\
+ ;; %0=r13, %1=r11, %2=r12 \n\
+ ;; \n\
+ ;; Save the registers we'll use in the movem process \n\
+ ;; on the stack. \n\
+ subq 11*4,$sp \n\
+ movem $r10,[$sp] \n\
+ \n\
+ ;; Now we've got this: \n\
+ ;; r11 - src \n\
+ ;; r13 - dst \n\
+ ;; r12 - n \n\
+ \n\
+ ;; Update n for the first loop \n\
+ subq 44,$r12 \n\
+0: \n\
+ movem [$r11+],$r10 \n\
+ subq 44,$r12 \n\
+ bge 0b \n\
+ movem $r10,[$r13+] \n\
+ \n\
+ addq 44,$r12 ;; compensate for last loop underflowing n \n\
+ \n\
+ ;; Restore registers from stack \n\
+ movem [$sp+],$r10"
/* Outputs */ : "=r" (dst), "=r" (src), "=r" (n)
/* Inputs */ : "0" (dst), "1" (src), "2" (n));
diff --git a/arch/cris/arch-v10/lib/usercopy.c b/arch/cris/arch-v10/lib/usercopy.c
index a12c708..b8e6c04 100644
--- a/arch/cris/arch-v10/lib/usercopy.c
+++ b/arch/cris/arch-v10/lib/usercopy.c
@@ -92,58 +92,58 @@
.ifnc %0%1%2%3,$r13$r11$r12$r10 \n\
.err \n\
.endif \n\
-
- ;; Save the registers we'll use in the movem process
- ;; on the stack.
- subq 11*4,$sp
- movem $r10,[$sp]
-
- ;; Now we've got this:
- ;; r11 - src
- ;; r13 - dst
- ;; r12 - n
-
- ;; Update n for the first loop
- subq 44,$r12
-
-; Since the noted PC of a faulting instruction in a delay-slot of a taken
-; branch, is that of the branch target, we actually point at the from-movem
-; for this case. There is no ambiguity here; if there was a fault in that
-; instruction (meaning a kernel oops), the faulted PC would be the address
-; after *that* movem.
-
-0:
- movem [$r11+],$r10
- subq 44,$r12
- bge 0b
- movem $r10,[$r13+]
-1:
- addq 44,$r12 ;; compensate for last loop underflowing n
-
- ;; Restore registers from stack
- movem [$sp+],$r10
-2:
- .section .fixup,\"ax\"
-
-; To provide a correct count in r10 of bytes that failed to be copied,
-; we jump back into the loop if the loop-branch was taken. There is no
-; performance penalty for sany use; the program will segfault soon enough.
-
-3:
- move.d [$sp],$r10
- addq 44,$r10
- move.d $r10,[$sp]
- jump 0b
-4:
- movem [$sp+],$r10
- addq 44,$r10
- addq 44,$r12
- jump 2b
-
- .previous
- .section __ex_table,\"a\"
- .dword 0b,3b
- .dword 1b,4b
+ \n\
+ ;; Save the registers we'll use in the movem process \n\
+ ;; on the stack. \n\
+ subq 11*4,$sp \n\
+ movem $r10,[$sp] \n\
+ \n\
+ ;; Now we've got this: \n\
+ ;; r11 - src \n\
+ ;; r13 - dst \n\
+ ;; r12 - n \n\
+ \n\
+ ;; Update n for the first loop \n\
+ subq 44,$r12 \n\
+ \n\
+; Since the noted PC of a faulting instruction in a delay-slot of a taken \n\
+; branch, is that of the branch target, we actually point at the from-movem \n\
+; for this case. There is no ambiguity here; if there was a fault in that \n\
+; instruction (meaning a kernel oops), the faulted PC would be the address \n\
+; after *that* movem. \n\
+ \n\
+0: \n\
+ movem [$r11+],$r10 \n\
+ subq 44,$r12 \n\
+ bge 0b \n\
+ movem $r10,[$r13+] \n\
+1: \n\
+ addq 44,$r12 ;; compensate for last loop underflowing n \n\
+ \n\
+ ;; Restore registers from stack \n\
+ movem [$sp+],$r10 \n\
+2: \n\
+ .section .fixup,\"ax\" \n\
+ \n\
+; To provide a correct count in r10 of bytes that failed to be copied, \n\
+; we jump back into the loop if the loop-branch was taken. There is no \n\
+; performance penalty for sany use; the program will segfault soon enough.\n\
+ \n\
+3: \n\
+ move.d [$sp],$r10 \n\
+ addq 44,$r10 \n\
+ move.d $r10,[$sp] \n\
+ jump 0b \n\
+4: \n\
+ movem [$sp+],$r10 \n\
+ addq 44,$r10 \n\
+ addq 44,$r12 \n\
+ jump 2b \n\
+ \n\
+ .previous \n\
+ .section __ex_table,\"a\" \n\
+ .dword 0b,3b \n\
+ .dword 1b,4b \n\
.previous"
/* Outputs */ : "=r" (dst), "=r" (src), "=r" (n), "=r" (retn)
@@ -253,59 +253,59 @@
If you want to check that the allocation was right; then
check the equalities in the first comment. It should say
"r13=r13, r11=r11, r12=r12" */
- __asm__ volatile ("
+ __asm__ volatile ("\n\
.ifnc %0%1%2%3,$r13$r11$r12$r10 \n\
.err \n\
.endif \n\
-
- ;; Save the registers we'll use in the movem process
- ;; on the stack.
- subq 11*4,$sp
- movem $r10,[$sp]
-
- ;; Now we've got this:
- ;; r11 - src
- ;; r13 - dst
- ;; r12 - n
-
- ;; Update n for the first loop
- subq 44,$r12
-0:
- movem [$r11+],$r10
-1:
- subq 44,$r12
- bge 0b
- movem $r10,[$r13+]
-
- addq 44,$r12 ;; compensate for last loop underflowing n
-
- ;; Restore registers from stack
- movem [$sp+],$r10
-4:
- .section .fixup,\"ax\"
-
-;; Do not jump back into the loop if we fail. For some uses, we get a
-;; page fault somewhere on the line. Without checking for page limits,
-;; we don't know where, but we need to copy accurately and keep an
-;; accurate count; not just clear the whole line. To do that, we fall
-;; down in the code below, proceeding with smaller amounts. It should
-;; be kept in mind that we have to cater to code like what at one time
-;; was in fs/super.c:
-;; i = size - copy_from_user((void *)page, data, size);
-;; which would cause repeated faults while clearing the remainder of
-;; the SIZE bytes at PAGE after the first fault.
-;; A caveat here is that we must not fall through from a failing page
-;; to a valid page.
-
-3:
- movem [$sp+],$r10
- addq 44,$r12 ;; Get back count before faulting point.
- subq 44,$r11 ;; Get back pointer to faulting movem-line.
- jump 4b ;; Fall through, pretending the fault didn't happen.
-
- .previous
- .section __ex_table,\"a\"
- .dword 1b,3b
+ \n\
+ ;; Save the registers we'll use in the movem process \n\
+ ;; on the stack. \n\
+ subq 11*4,$sp \n\
+ movem $r10,[$sp] \n\
+ \n\
+ ;; Now we've got this: \n\
+ ;; r11 - src \n\
+ ;; r13 - dst \n\
+ ;; r12 - n \n\
+ \n\
+ ;; Update n for the first loop \n\
+ subq 44,$r12 \n\
+0: \n\
+ movem [$r11+],$r10 \n\
+1: \n\
+ subq 44,$r12 \n\
+ bge 0b \n\
+ movem $r10,[$r13+] \n\
+ \n\
+ addq 44,$r12 ;; compensate for last loop underflowing n \n\
+ \n\
+ ;; Restore registers from stack \n\
+ movem [$sp+],$r10 \n\
+4: \n\
+ .section .fixup,\"ax\" \n\
+ \n\
+;; Do not jump back into the loop if we fail. For some uses, we get a \n\
+;; page fault somewhere on the line. Without checking for page limits, \n\
+;; we don't know where, but we need to copy accurately and keep an \n\
+;; accurate count; not just clear the whole line. To do that, we fall \n\
+;; down in the code below, proceeding with smaller amounts. It should \n\
+;; be kept in mind that we have to cater to code like what at one time \n\
+;; was in fs/super.c: \n\
+;; i = size - copy_from_user((void *)page, data, size); \n\
+;; which would cause repeated faults while clearing the remainder of \n\
+;; the SIZE bytes at PAGE after the first fault. \n\
+;; A caveat here is that we must not fall through from a failing page \n\
+;; to a valid page. \n\
+ \n\
+3: \n\
+ movem [$sp+],$r10 \n\
+ addq 44,$r12 ;; Get back count before faulting point. \n\
+ subq 44,$r11 ;; Get back pointer to faulting movem-line. \n\
+ jump 4b ;; Fall through, pretending the fault didn't happen.\n\
+ \n\
+ .previous \n\
+ .section __ex_table,\"a\" \n\
+ .dword 1b,3b \n\
.previous"
/* Outputs */ : "=r" (dst), "=r" (src), "=r" (n), "=r" (retn)
@@ -425,64 +425,64 @@
If you want to check that the allocation was right; then
check the equalities in the first comment. It should say
something like "r13=r13, r11=r11, r12=r12". */
- __asm__ volatile ("
+ __asm__ volatile ("\n\
.ifnc %0%1%2,$r13$r12$r10 \n\
.err \n\
.endif \n\
-
- ;; Save the registers we'll clobber in the movem process
- ;; on the stack. Don't mention them to gcc, it will only be
- ;; upset.
- subq 11*4,$sp
- movem $r10,[$sp]
-
- clear.d $r0
- clear.d $r1
- clear.d $r2
- clear.d $r3
- clear.d $r4
- clear.d $r5
- clear.d $r6
- clear.d $r7
- clear.d $r8
- clear.d $r9
- clear.d $r10
- clear.d $r11
-
- ;; Now we've got this:
- ;; r13 - dst
- ;; r12 - n
-
- ;; Update n for the first loop
- subq 12*4,$r12
-0:
- subq 12*4,$r12
- bge 0b
- movem $r11,[$r13+]
-1:
- addq 12*4,$r12 ;; compensate for last loop underflowing n
-
- ;; Restore registers from stack
- movem [$sp+],$r10
-2:
- .section .fixup,\"ax\"
-3:
- move.d [$sp],$r10
- addq 12*4,$r10
- move.d $r10,[$sp]
- clear.d $r10
- jump 0b
-
-4:
- movem [$sp+],$r10
- addq 12*4,$r10
- addq 12*4,$r12
- jump 2b
-
- .previous
- .section __ex_table,\"a\"
- .dword 0b,3b
- .dword 1b,4b
+ \n\
+ ;; Save the registers we'll clobber in the movem process \n\
+ ;; on the stack. Don't mention them to gcc, it will only be \n\
+ ;; upset. \n\
+ subq 11*4,$sp \n\
+ movem $r10,[$sp] \n\
+ \n\
+ clear.d $r0 \n\
+ clear.d $r1 \n\
+ clear.d $r2 \n\
+ clear.d $r3 \n\
+ clear.d $r4 \n\
+ clear.d $r5 \n\
+ clear.d $r6 \n\
+ clear.d $r7 \n\
+ clear.d $r8 \n\
+ clear.d $r9 \n\
+ clear.d $r10 \n\
+ clear.d $r11 \n\
+ \n\
+ ;; Now we've got this: \n\
+ ;; r13 - dst \n\
+ ;; r12 - n \n\
+ \n\
+ ;; Update n for the first loop \n\
+ subq 12*4,$r12 \n\
+0: \n\
+ subq 12*4,$r12 \n\
+ bge 0b \n\
+ movem $r11,[$r13+] \n\
+1: \n\
+ addq 12*4,$r12 ;; compensate for last loop underflowing n\n\
+ \n\
+ ;; Restore registers from stack \n\
+ movem [$sp+],$r10 \n\
+2: \n\
+ .section .fixup,\"ax\" \n\
+3: \n\
+ move.d [$sp],$r10 \n\
+ addq 12*4,$r10 \n\
+ move.d $r10,[$sp] \n\
+ clear.d $r10 \n\
+ jump 0b \n\
+ \n\
+4: \n\
+ movem [$sp+],$r10 \n\
+ addq 12*4,$r10 \n\
+ addq 12*4,$r12 \n\
+ jump 2b \n\
+ \n\
+ .previous \n\
+ .section __ex_table,\"a\" \n\
+ .dword 0b,3b \n\
+ .dword 1b,4b \n\
.previous"
/* Outputs */ : "=r" (dst), "=r" (n), "=r" (retn)
diff --git a/arch/cris/arch-v32/drivers/Kconfig b/arch/cris/arch-v32/drivers/Kconfig
index cc6ba54..7f72d7c 100644
--- a/arch/cris/arch-v32/drivers/Kconfig
+++ b/arch/cris/arch-v32/drivers/Kconfig
@@ -362,8 +362,6 @@
select MTD
select MTD_CFI
select MTD_CFI_AMDSTD
- select MTD_OBSOLETE_CHIPS
- select MTD_AMDSTD
select MTD_CHAR
select MTD_BLOCK
select MTD_PARTITIONS
diff --git a/arch/cris/arch-v32/drivers/axisflashmap.c b/arch/cris/arch-v32/drivers/axisflashmap.c
index 3ec12ea..c5ff95e 100644
--- a/arch/cris/arch-v32/drivers/axisflashmap.c
+++ b/arch/cris/arch-v32/drivers/axisflashmap.c
@@ -190,13 +190,12 @@
"%s: Probing a 0x%08lx bytes large window at 0x%08lx.\n",
map_cs->name, map_cs->size, map_cs->map_priv_1);
-#ifdef CONFIG_MTD_AMDSTD
- mtd_cs = do_map_probe("amd_flash", map_cs);
-#endif
#ifdef CONFIG_MTD_CFI
- if (!mtd_cs) {
mtd_cs = do_map_probe("cfi_probe", map_cs);
- }
+#endif
+#ifdef CONFIG_MTD_JEDECPROBE
+ if (!mtd_cs)
+ mtd_cs = do_map_probe("jedec_probe", map_cs);
#endif
return mtd_cs;
diff --git a/arch/cris/arch-v32/drivers/sync_serial.c b/arch/cris/arch-v32/drivers/sync_serial.c
index df89298..d581b0a 100644
--- a/arch/cris/arch-v32/drivers/sync_serial.c
+++ b/arch/cris/arch-v32/drivers/sync_serial.c
@@ -185,7 +185,7 @@
}
};
-#define NUMBER_OF_PORTS (sizeof(ports)/sizeof(sync_port))
+#define NUMBER_OF_PORTS ARRAY_SIZE(ports)
static const struct file_operations sync_serial_fops = {
.owner = THIS_MODULE,
diff --git a/arch/cris/arch-v32/kernel/cache.c b/arch/cris/arch-v32/kernel/cache.c
new file mode 100644
index 0000000..80da7b8
--- /dev/null
+++ b/arch/cris/arch-v32/kernel/cache.c
@@ -0,0 +1,33 @@
+#include <linux/module.h>
+#include <asm/io.h>
+#include <asm/arch/cache.h>
+#include <asm/arch/hwregs/dma.h>
+
+/* This file is used to workaround a cache bug, Guinness TR 106. */
+
+inline void flush_dma_descr(struct dma_descr_data *descr, int flush_buf)
+{
+ /* Flush descriptor to make sure we get correct in_eop and after. */
+ asm volatile ("ftagd [%0]" :: "r" (descr));
+ /* Flush buffer pointed out by descriptor. */
+ if (flush_buf)
+ cris_flush_cache_range(phys_to_virt((unsigned)descr->buf),
+ (unsigned)(descr->after - descr->buf));
+}
+EXPORT_SYMBOL(flush_dma_descr);
+
+void flush_dma_list(struct dma_descr_data *descr)
+{
+ while (1) {
+ flush_dma_descr(descr, 1);
+ if (descr->eol)
+ break;
+ descr = phys_to_virt((unsigned)descr->next);
+ }
+}
+EXPORT_SYMBOL(flush_dma_list);
+
+/* From cacheflush.S */
+EXPORT_SYMBOL(cris_flush_cache);
+/* From cacheflush.S */
+EXPORT_SYMBOL(cris_flush_cache_range);
diff --git a/arch/cris/arch-v32/kernel/cacheflush.S b/arch/cris/arch-v32/kernel/cacheflush.S
new file mode 100644
index 0000000..956e8fb
--- /dev/null
+++ b/arch/cris/arch-v32/kernel/cacheflush.S
@@ -0,0 +1,94 @@
+ .global cris_flush_cache_range
+cris_flush_cache_range:
+ move.d 1024, $r12
+ cmp.d $r11, $r12
+ bhi cris_flush_1KB
+ nop
+ add.d $r10, $r11
+ ftagd [$r10]
+cris_flush_last:
+ addq 32, $r10
+ cmp.d $r11, $r10
+ blt cris_flush_last
+ ftagd [$r10]
+ ret
+ nop
+cris_flush_1KB:
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ftagd [$r10]
+ addq 32, $r10
+ ba cris_flush_cache_range
+ sub.d $r12, $r11
+
+ .global cris_flush_cache
+cris_flush_cache:
+ moveq 0, $r10
+cris_flush_line:
+ move.d 16*1024, $r11
+ addq 16, $r10
+ cmp.d $r10, $r11
+ blt cris_flush_line
+ fidxd [$r10]
+ ret
+ nop
diff --git a/arch/cris/arch-v32/kernel/io.c b/arch/cris/arch-v32/kernel/io.c
index dfbfcb8..a22a9e0 100644
--- a/arch/cris/arch-v32/kernel/io.c
+++ b/arch/cris/arch-v32/kernel/io.c
@@ -49,7 +49,7 @@
}
};
-#define NBR_OF_PORTS sizeof(crisv32_ioports)/sizeof(struct crisv32_ioport)
+#define NBR_OF_PORTS ARRAY_SIZE(crisv32_ioports)
struct crisv32_iopin crisv32_led1_green;
struct crisv32_iopin crisv32_led1_red;
diff --git a/arch/cris/arch-v32/kernel/setup.c b/arch/cris/arch-v32/kernel/setup.c
index 4662f36..72e9e83 100644
--- a/arch/cris/arch-v32/kernel/setup.c
+++ b/arch/cris/arch-v32/kernel/setup.c
@@ -54,12 +54,10 @@
{
int i;
int cpu = (int)v - 1;
- int entries;
unsigned long revision;
struct cpu_info *info;
- entries = sizeof cpinfo / sizeof(struct cpu_info);
- info = &cpinfo[entries - 1];
+ info = &cpinfo[ARRAY_SIZE(cpinfo) - 1];
#ifdef CONFIG_SMP
if (!cpu_online(cpu))
@@ -68,7 +66,7 @@
revision = rdvr();
- for (i = 0; i < entries; i++) {
+ for (i = 0; i < ARRAY_SIZE(cpinfo); i++) {
if (cpinfo[i].rev == revision) {
info = &cpinfo[i];
break;
diff --git a/arch/cris/defconfig b/arch/cris/defconfig
index 142a108..9c33ae6 100644
--- a/arch/cris/defconfig
+++ b/arch/cris/defconfig
@@ -226,8 +226,6 @@
CONFIG_MTD_RAM=y
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
-CONFIG_MTD_OBSOLETE_CHIPS=y
-CONFIG_MTD_AMDSTD=y
# CONFIG_MTD_SHARP is not set
# CONFIG_MTD_JEDEC is not set
@@ -276,6 +274,7 @@
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
@@ -302,16 +301,14 @@
#
# ATA/ATAPI/MFM/RLL support
#
-CONFIG_IDE=y
-CONFIG_BLK_DEV_IDE=y
+# CONFIG_IDE is not set
+# CONFIG_PARIDE is not set
#
# 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_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_IDE_TASK_IOCTL is not set
@@ -321,7 +318,6 @@
#
# CONFIG_IDE_GENERIC is not set
# CONFIG_IDE_ARM is not set
-CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_AUTO is not set
# CONFIG_BLK_DEV_HD is not set
@@ -329,6 +325,7 @@
# SCSI device support
#
# CONFIG_SCSI is not set
+# CONFIG_ISCSI_TCP is not set
#
# IEEE 1394 (FireWire) support
@@ -414,26 +411,11 @@
# CONFIG_NET_POLL_CONTROLLER is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
-CONFIG_BT=y
-CONFIG_BT_L2CAP=y
-# CONFIG_BT_SCO is not set
-CONFIG_BT_RFCOMM=y
-# CONFIG_BT_RFCOMM_TTY is not set
-CONFIG_BT_BNEP=y
-# CONFIG_BT_BNEP_MC_FILTER is not set
-# CONFIG_BT_BNEP_PROTO_FILTER is not set
-# CONFIG_BT_HIDP is not set
+# CONFIG_AF_RXRPC is not set
+# CONFIG_AF_RXRPC_DEBUG is not set
+# CONFIG_BT is not set
+# CONFIG_I2C is not set
-#
-# Bluetooth device drivers
-#
-CONFIG_BT_HCIUSB=y
-# CONFIG_BT_HCIUSB_SCO is not set
-# CONFIG_BT_HCIUART is not set
-# CONFIG_BT_HCIBCM203X is not set
-# CONFIG_BT_HCIBPA10X is not set
-# CONFIG_BT_HCIBFUSB is not set
-# CONFIG_BT_HCIVHCI is not set
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
@@ -485,31 +467,17 @@
#
# 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
+# CONFIG_INPUT is not set
#
# Input I/O drivers
#
-# CONFIG_GAMEPORT is not set
-CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
# CONFIG_SERIO_I8042 is not set
# CONFIG_SERIO_SERPORT is not set
-# CONFIG_SERIO_CT82C710 is not set
-CONFIG_SERIO_LIBPS2=y
+# CONFIG_SERIO_LIBPS2 is not set
# CONFIG_SERIO_RAW is not set
+# CONFIG_GAMEPORT is not set
#
# Input Device Drivers
@@ -525,6 +493,7 @@
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
+# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
@@ -542,6 +511,8 @@
#
# 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
@@ -559,6 +530,8 @@
# CONFIG_GEN_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
+# CONFIG_RTC_LIB is not set
+# CONFIG_RTC_CLASS is not set
#
# Ftape, the floppy tape device driver
@@ -660,7 +633,9 @@
# CONFIG_NFSD is not set
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
+CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
+# CONFIG_SUNRPC_BIND34 is not set
# CONFIG_RPCSEC_GSS_KRB5 is not set
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
@@ -686,9 +661,21 @@
# CONFIG_SOUND is not set
#
+# Generic devices
+#
+# CONFIG_SND_MPU401_UART is not set
+# 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
+
+#
# PCCARD (PCMCIA/CardBus) support
#
# CONFIG_PCCARD is not set
+# CONFIG_PARPORT_PC_PCMCIA is not set
+# CONFIG_NET_PCMCIA is not set
#
# PC-card bridges
@@ -734,6 +721,7 @@
# USB Input Devices
#
# CONFIG_USB_HID is not set
+# HID_SUPPORT is not set
#
# USB HID Boot Protocol drivers
@@ -829,7 +817,7 @@
#
# Hardware crypto devices
-#
+# CONFIG_CRYPTO_HW is not set
#
# Library routines
diff --git a/arch/cris/kernel/crisksyms.c b/arch/cris/kernel/crisksyms.c
index 105bb5e..62f0e75 100644
--- a/arch/cris/kernel/crisksyms.c
+++ b/arch/cris/kernel/crisksyms.c
@@ -27,6 +27,7 @@
extern void __ashldi3(void);
extern void __ashrdi3(void);
extern void __lshrdi3(void);
+extern void __negdi2(void);
extern void iounmap(volatile void * __iomem);
/* Platform dependent support */
@@ -34,19 +35,6 @@
EXPORT_SYMBOL(get_cmos_time);
EXPORT_SYMBOL(loops_per_usec);
-/* String functions */
-EXPORT_SYMBOL(memcmp);
-EXPORT_SYMBOL(memmove);
-EXPORT_SYMBOL(strstr);
-EXPORT_SYMBOL(strcpy);
-EXPORT_SYMBOL(strchr);
-EXPORT_SYMBOL(strcmp);
-EXPORT_SYMBOL(strlen);
-EXPORT_SYMBOL(strcat);
-EXPORT_SYMBOL(strncat);
-EXPORT_SYMBOL(strncmp);
-EXPORT_SYMBOL(strncpy);
-
/* Math functions */
EXPORT_SYMBOL(__Udiv);
EXPORT_SYMBOL(__Umod);
@@ -55,6 +43,7 @@
EXPORT_SYMBOL(__ashldi3);
EXPORT_SYMBOL(__ashrdi3);
EXPORT_SYMBOL(__lshrdi3);
+EXPORT_SYMBOL(__negdi2);
/* Memory functions */
EXPORT_SYMBOL(__ioremap);
@@ -84,4 +73,4 @@
EXPORT_SYMBOL(del_fast_timer);
EXPORT_SYMBOL(schedule_usleep);
#endif
-
+EXPORT_SYMBOL(csum_partial);
diff --git a/arch/cris/kernel/irq.c b/arch/cris/kernel/irq.c
index 5c27ff8..2dfac8c 100644
--- a/arch/cris/kernel/irq.c
+++ b/arch/cris/kernel/irq.c
@@ -2,7 +2,7 @@
*
* linux/arch/cris/kernel/irq.c
*
- * Copyright (c) 2000,2001 Axis Communications AB
+ * Copyright (c) 2000,2007 Axis Communications AB
*
* Authors: Bjorn Wesen (bjornw@axis.com)
*
@@ -92,14 +92,16 @@
asmlinkage void do_IRQ(int irq, struct pt_regs * regs)
{
unsigned long sp;
+ struct pt_regs *old_regs = set_irq_regs(regs);
irq_enter();
sp = rdsp();
if (unlikely((sp & (PAGE_SIZE - 1)) < (PAGE_SIZE/8))) {
printk("do_IRQ: stack overflow: %lX\n", sp);
show_stack(NULL, (unsigned long *)sp);
}
- __do_IRQ(irq, regs);
+ __do_IRQ(irq);
irq_exit();
+ set_irq_regs(old_regs);
}
void weird_irq(void)
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index 123451c..9ca558f 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -195,6 +195,11 @@
*/
void (*pm_idle)(void);
+extern void default_idle(void);
+
+void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
+
/*
* The idle thread. There's no useful work to be
* done, so just try to conserve power and have a
diff --git a/arch/cris/kernel/ptrace.c b/arch/cris/kernel/ptrace.c
index 1085d03..3ccd20e 100644
--- a/arch/cris/kernel/ptrace.c
+++ b/arch/cris/kernel/ptrace.c
@@ -81,13 +81,13 @@
/* notification of userspace execution resumption
* - triggered by current->work.notify_resume
*/
-extern int do_signal(int canrestart, sigset_t *oldset, struct pt_regs *regs);
+extern int do_signal(int canrestart, struct pt_regs *regs);
-void do_notify_resume(int canrestart, sigset_t *oldset, struct pt_regs *regs,
+void do_notify_resume(int canrestart, struct pt_regs *regs,
__u32 thread_info_flags )
{
/* deal with pending signal delivery */
if (thread_info_flags & _TIF_SIGPENDING)
- do_signal(canrestart,oldset,regs);
+ do_signal(canrestart,regs);
}
diff --git a/arch/cris/kernel/sys_cris.c b/arch/cris/kernel/sys_cris.c
index 514359b..8b99841 100644
--- a/arch/cris/kernel/sys_cris.c
+++ b/arch/cris/kernel/sys_cris.c
@@ -13,6 +13,7 @@
#include <linux/sched.h>
#include <linux/syscalls.h>
#include <linux/mm.h>
+#include <linux/fs.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/sem.h>
diff --git a/arch/cris/kernel/time.c b/arch/cris/kernel/time.c
index acfd045..7a2cc7e 100644
--- a/arch/cris/kernel/time.c
+++ b/arch/cris/kernel/time.c
@@ -171,10 +171,6 @@
mon = CMOS_READ(RTC_MONTH);
year = CMOS_READ(RTC_YEAR);
- printk(KERN_DEBUG
- "rtc: sec 0x%x min 0x%x hour 0x%x day 0x%x mon 0x%x year 0x%x\n",
- sec, min, hour, day, mon, year);
-
BCD_TO_BIN(sec);
BCD_TO_BIN(min);
BCD_TO_BIN(hour);
@@ -207,12 +203,12 @@
cris_do_profile(struct pt_regs* regs)
{
-#if CONFIG_SYSTEM_PROFILER
+#ifdef CONFIG_SYSTEM_PROFILER
cris_profile_sample(regs);
#endif
-#if CONFIG_PROFILING
- profile_tick(CPU_PROFILING, regs);
+#ifdef CONFIG_PROFILING
+ profile_tick(CPU_PROFILING);
#endif
}
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index 5181bf5..8e8f8b6 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -1113,7 +1113,7 @@
if (md->num_pages == 0) /* should not happen */
continue;
- flags = IORESOURCE_MEM;
+ flags = IORESOURCE_MEM | IORESOURCE_BUSY;
switch (md->type) {
case EFI_MEMORY_MAPPED_IO:
@@ -1135,12 +1135,11 @@
case EFI_ACPI_MEMORY_NVS:
name = "ACPI Non-volatile Storage";
- flags |= IORESOURCE_BUSY;
break;
case EFI_UNUSABLE_MEMORY:
name = "reserved";
- flags |= IORESOURCE_BUSY | IORESOURCE_DISABLED;
+ flags |= IORESOURCE_DISABLED;
break;
case EFI_RESERVED_TYPE:
@@ -1149,7 +1148,6 @@
case EFI_ACPI_RECLAIM_MEMORY:
default:
name = "reserved";
- flags |= IORESOURCE_BUSY;
break;
}
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 2c7d6c2..2f2ce0c 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -361,10 +361,10 @@
select PCSPEAKER
select SWAP_IO_SPACE
select SYS_HAS_CPU_MIPS32_R1
+ select SYS_HAS_EARLY_PRINTK
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_LITTLE_ENDIAN
- select ARCH_SPARSEMEM_ENABLE
select GENERIC_HARDIRQS_NO__DO_IRQ
select NR_CPUS_DEFAULT_1
select SYS_SUPPORTS_SMP
@@ -1409,7 +1409,6 @@
depends on SYS_SUPPORTS_MULTITHREADING
select CPU_MIPSR2_IRQ_VI
select CPU_MIPSR2_IRQ_EI
- select CPU_MIPSR2_SRS
select MIPS_MT
select NR_CPUS_DEFAULT_2
select SMP
@@ -1426,7 +1425,6 @@
select GENERIC_CLOCKEVENTS_BROADCAST
select CPU_MIPSR2_IRQ_VI
select CPU_MIPSR2_IRQ_EI
- select CPU_MIPSR2_SRS
select MIPS_MT
select NR_CPUS_DEFAULT_8
select SMP
@@ -1453,7 +1451,6 @@
depends on SYS_SUPPORTS_MULTITHREADING
select CPU_MIPSR2_IRQ_VI
select CPU_MIPSR2_IRQ_EI
- select CPU_MIPSR2_SRS
select MIPS_MT
help
Includes a loader for loading an elf relocatable object
@@ -1582,12 +1579,6 @@
config CPU_MIPSR2_IRQ_EI
bool
-#
-# Shadow registers are an R2 feature
-#
-config CPU_MIPSR2_SRS
- bool
-
config CPU_HAS_SYNC
bool
depends on !CPU_R3000
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 23c1775..a1f8d8b 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -44,7 +44,7 @@
ifneq ($(SUBARCH),$(ARCH))
ifeq ($(CROSS_COMPILE),)
- CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-gnu-linux- $(tool-archpref)-unknown-gnu-linux-)
+ CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)
endif
endif
diff --git a/arch/mips/kernel/cevt-bcm1480.c b/arch/mips/kernel/cevt-bcm1480.c
index 21e6d63..0a57f86 100644
--- a/arch/mips/kernel/cevt-bcm1480.c
+++ b/arch/mips/kernel/cevt-bcm1480.c
@@ -75,6 +75,7 @@
cfg = IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_CFG));
init = IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_INIT));
+ __raw_writeq(0, cfg);
__raw_writeq(delta - 1, init);
__raw_writeq(M_SCD_TIMER_ENABLE, cfg);
@@ -122,7 +123,7 @@
CLOCK_EVT_FEAT_ONESHOT;
clockevent_set_clock(cd, V_SCD_TIMER_FREQ);
cd->max_delta_ns = clockevent_delta2ns(0x7fffff, cd);
- cd->min_delta_ns = clockevent_delta2ns(1, cd);
+ cd->min_delta_ns = clockevent_delta2ns(2, cd);
cd->rating = 200;
cd->irq = irq;
cd->cpumask = cpumask_of_cpu(cpu);
@@ -143,7 +144,10 @@
action->handler = sibyte_counter_handler;
action->flags = IRQF_DISABLED | IRQF_PERCPU;
+ action->mask = cpumask_of_cpu(cpu);
action->name = name;
action->dev_id = cd;
+
+ irq_set_affinity(irq, cpumask_of_cpu(cpu));
setup_irq(irq, action);
}
diff --git a/arch/mips/kernel/cevt-sb1250.c b/arch/mips/kernel/cevt-sb1250.c
index e2029d0..63ac3ad 100644
--- a/arch/mips/kernel/cevt-sb1250.c
+++ b/arch/mips/kernel/cevt-sb1250.c
@@ -73,6 +73,7 @@
cfg = IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_CFG));
init = IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_INIT));
+ __raw_writeq(0, cfg);
__raw_writeq(delta - 1, init);
__raw_writeq(M_SCD_TIMER_ENABLE, cfg);
@@ -121,7 +122,7 @@
CLOCK_EVT_FEAT_ONESHOT;
clockevent_set_clock(cd, V_SCD_TIMER_FREQ);
cd->max_delta_ns = clockevent_delta2ns(0x7fffff, cd);
- cd->min_delta_ns = clockevent_delta2ns(1, cd);
+ cd->min_delta_ns = clockevent_delta2ns(2, cd);
cd->rating = 200;
cd->irq = irq;
cd->cpumask = cpumask_of_cpu(cpu);
@@ -142,7 +143,10 @@
action->handler = sibyte_counter_handler;
action->flags = IRQF_DISABLED | IRQF_PERCPU;
+ action->mask = cpumask_of_cpu(cpu);
action->name = name;
action->dev_id = cd;
+
+ irq_set_affinity(irq, cpumask_of_cpu(cpu));
setup_irq(irq, action);
}
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index c8c47a2..5c27943 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -943,6 +943,11 @@
}
__cpu_name[cpu] = cpu_to_name(c);
+
+ if (cpu_has_mips_r2)
+ c->srsets = ((read_c0_srsctl() >> 26) & 0x0f) + 1;
+ else
+ c->srsets = 1;
}
__init void cpu_report(void)
diff --git a/arch/mips/kernel/csrc-sb1250.c b/arch/mips/kernel/csrc-sb1250.c
index ebb16e6..92212bb 100644
--- a/arch/mips/kernel/csrc-sb1250.c
+++ b/arch/mips/kernel/csrc-sb1250.c
@@ -43,7 +43,7 @@
}
struct clocksource bcm1250_clocksource = {
- .name = "MIPS",
+ .name = "bcm1250-counter-3",
.rating = 200,
.read = sb1250_hpt_read,
.mask = CLOCKSOURCE_MASK(23),
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index c0f19d6..e76a76b 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -146,7 +146,7 @@
and k0, ST0_IEP
bnez k0, 1f
- mfc0 k0, EP0_EPC
+ mfc0 k0, CP0_EPC
.set noreorder
j k0
rfe
diff --git a/arch/mips/kernel/irixsig.c b/arch/mips/kernel/irixsig.c
index 33506ff..5b10ac1 100644
--- a/arch/mips/kernel/irixsig.c
+++ b/arch/mips/kernel/irixsig.c
@@ -430,6 +430,7 @@
break;
default:
+ spin_unlock_irq(¤t->sighand->siglock);
return -EINVAL;
}
recalc_sigpending();
diff --git a/arch/mips/kernel/irq-rm7000.c b/arch/mips/kernel/irq-rm7000.c
index 2507328..971adf6 100644
--- a/arch/mips/kernel/irq-rm7000.c
+++ b/arch/mips/kernel/irq-rm7000.c
@@ -44,5 +44,5 @@
for (i = base; i < base + 4; i++)
set_irq_chip_and_handler(i, &rm7k_irq_controller,
- handle_level_irq);
+ handle_percpu_irq);
}
diff --git a/arch/mips/kernel/irq-rm9000.c b/arch/mips/kernel/irq-rm9000.c
index ae83d2d..7b04583 100644
--- a/arch/mips/kernel/irq-rm9000.c
+++ b/arch/mips/kernel/irq-rm9000.c
@@ -104,5 +104,5 @@
rm9000_perfcount_irq = base + 1;
set_irq_chip_and_handler(rm9000_perfcount_irq, &rm9k_perfcounter_irq,
- handle_level_irq);
+ handle_percpu_irq);
}
diff --git a/arch/mips/kernel/irq_cpu.c b/arch/mips/kernel/irq_cpu.c
index 7b66e03..0ee2567 100644
--- a/arch/mips/kernel/irq_cpu.c
+++ b/arch/mips/kernel/irq_cpu.c
@@ -116,5 +116,5 @@
for (i = irq_base + 2; i < irq_base + 8; i++)
set_irq_chip_and_handler(i, &mips_cpu_irq_controller,
- handle_level_irq);
+ handle_percpu_irq);
}
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index efd2d13..6e6e947 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -60,6 +60,8 @@
cpu_has_dsp ? " dsp" : "",
cpu_has_mipsmt ? " mt" : ""
);
+ seq_printf(m, "shadow register sets\t: %d\n",
+ cpu_data[n].srsets);
sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
cpu_has_vce ? "%u" : "not available");
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 118be24..01993ec 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -293,7 +293,7 @@
PTR sys_ni_syscall /* 6170, was get_kernel_syms */
PTR sys_ni_syscall /* was query_module */
PTR sys_quotactl
- PTR sys_nfsservctl
+ PTR compat_sys_nfsservctl
PTR sys_ni_syscall /* res. for getpmsg */
PTR sys_ni_syscall /* 6175 for putpmsg */
PTR sys_ni_syscall /* res. for afs_syscall */
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index fa50078..23e73d0 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1100,59 +1100,6 @@
return (void *)old_handler;
}
-#ifdef CONFIG_CPU_MIPSR2_SRS
-/*
- * MIPSR2 shadow register set allocation
- * FIXME: SMP...
- */
-
-static struct shadow_registers {
- /*
- * Number of shadow register sets supported
- */
- unsigned long sr_supported;
- /*
- * Bitmap of allocated shadow registers
- */
- unsigned long sr_allocated;
-} shadow_registers;
-
-static void mips_srs_init(void)
-{
- shadow_registers.sr_supported = ((read_c0_srsctl() >> 26) & 0x0f) + 1;
- printk(KERN_INFO "%ld MIPSR2 register sets available\n",
- shadow_registers.sr_supported);
- shadow_registers.sr_allocated = 1; /* Set 0 used by kernel */
-}
-
-int mips_srs_max(void)
-{
- return shadow_registers.sr_supported;
-}
-
-int mips_srs_alloc(void)
-{
- struct shadow_registers *sr = &shadow_registers;
- int set;
-
-again:
- set = find_first_zero_bit(&sr->sr_allocated, sr->sr_supported);
- if (set >= sr->sr_supported)
- return -1;
-
- if (test_and_set_bit(set, &sr->sr_allocated))
- goto again;
-
- return set;
-}
-
-void mips_srs_free(int set)
-{
- struct shadow_registers *sr = &shadow_registers;
-
- clear_bit(set, &sr->sr_allocated);
-}
-
static asmlinkage void do_default_vi(void)
{
show_regs(get_irq_regs());
@@ -1163,6 +1110,7 @@
{
unsigned long handler;
unsigned long old_handler = vi_handlers[n];
+ int srssets = current_cpu_data.srsets;
u32 *w;
unsigned char *b;
@@ -1178,7 +1126,7 @@
b = (unsigned char *)(ebase + 0x200 + n*VECTORSPACING);
- if (srs >= mips_srs_max())
+ if (srs >= srssets)
panic("Shadow register set %d not supported", srs);
if (cpu_has_veic) {
@@ -1186,7 +1134,7 @@
board_bind_eic_interrupt(n, srs);
} else if (cpu_has_vint) {
/* SRSMap is only defined if shadow sets are implemented */
- if (mips_srs_max() > 1)
+ if (srssets > 1)
change_c0_srsmap(0xf << n*4, srs << n*4);
}
@@ -1253,14 +1201,6 @@
return set_vi_srs_handler(n, addr, 0);
}
-#else
-
-static inline void mips_srs_init(void)
-{
-}
-
-#endif /* CONFIG_CPU_MIPSR2_SRS */
-
/*
* This is used by native signal handling
*/
@@ -1503,8 +1443,6 @@
else
ebase = CAC_BASE;
- mips_srs_init();
-
per_cpu_trap_init();
/*
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index 436a64f..38bd33f 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -1003,6 +1003,7 @@
write_tc_c0_tcstatus(tmp);
write_tc_c0_tchalt(TCHALT_H);
+ mips_ihb();
/* bind it to anything other than VPE1 */
// write_tc_c0_tcbind(read_tc_c0_tcbind() & ~TCBIND_CURVPE); // | TCBIND_CURVPE
@@ -1235,9 +1236,12 @@
settc(t->index);
write_vpe_c0_vpeconf0(read_vpe_c0_vpeconf0() & ~VPECONF0_VPA);
- /* mark the TC unallocated and halt'ed */
- write_tc_c0_tcstatus(read_tc_c0_tcstatus() & ~TCSTATUS_A);
+ /* halt the TC */
write_tc_c0_tchalt(TCHALT_H);
+ mips_ihb();
+
+ /* mark the TC unallocated */
+ write_tc_c0_tcstatus(read_tc_c0_tcstatus() & ~TCSTATUS_A);
v->state = VPE_STATE_UNUSED;
@@ -1533,14 +1537,16 @@
t->pvpe = get_vpe(0); /* set the parent vpe */
}
+ /* halt the TC */
+ write_tc_c0_tchalt(TCHALT_H);
+ mips_ihb();
+
tmp = read_tc_c0_tcstatus();
/* mark not activated and not dynamically allocatable */
tmp &= ~(TCSTATUS_A | TCSTATUS_DA);
tmp |= TCSTATUS_IXMT; /* interrupt exempt */
write_tc_c0_tcstatus(tmp);
-
- write_tc_c0_tchalt(TCHALT_H);
}
}
diff --git a/arch/mips/lasat/interrupt.c b/arch/mips/lasat/interrupt.c
index ba9692b..cfeab66 100644
--- a/arch/mips/lasat/interrupt.c
+++ b/arch/mips/lasat/interrupt.c
@@ -19,17 +19,14 @@
* Lasat boards.
*/
#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 <linux/irq.h>
#include <asm/bootinfo.h>
#include <asm/irq_cpu.h>
#include <asm/lasat/lasatint.h>
-#include <asm/time.h>
-#include <asm/gdb-stub.h>
+
+#include <irq.h>
static volatile int *lasat_int_status;
static volatile int *lasat_int_mask;
@@ -97,12 +94,18 @@
/* if int_status == 0, then the interrupt has already been cleared */
if (int_status) {
- irq = LASATINT_BASE + ls1bit32(int_status);
+ irq = LASAT_IRQ_BASE + ls1bit32(int_status);
do_IRQ(irq);
}
}
+static struct irqaction cascade = {
+ .handler = no_action,
+ .mask = CPU_MASK_NONE,
+ .name = "cascade",
+};
+
void __init arch_init_irq(void)
{
int i;
@@ -127,6 +130,9 @@
}
mips_cpu_irq_init();
- for (i = LASATINT_BASE; i <= LASATINT_END; i++)
+
+ for (i = LASAT_IRQ_BASE; i <= LASAT_IRQ_END; i++)
set_irq_chip_and_handler(i, &lasat_irq_type, handle_level_irq);
+
+ setup_irq(LASAT_CASCADE_IRQ, &cascade);
}
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 6806d58..9355f1c 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -7,6 +7,7 @@
* Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Ralf Baechle (ralf@gnu.org)
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
*/
+#include <linux/hardirq.h>
#include <linux/init.h>
#include <linux/highmem.h>
#include <linux/kernel.h>
@@ -507,7 +508,11 @@
static void r4k_flush_data_cache_page(unsigned long addr)
{
- r4k_on_each_cpu(local_r4k_flush_data_cache_page, (void *) addr, 1, 1);
+ if (in_atomic())
+ local_r4k_flush_data_cache_page((void *)addr);
+ else
+ r4k_on_each_cpu(local_r4k_flush_data_cache_page, (void *) addr,
+ 1, 1);
}
struct flush_icache_range_args {
diff --git a/arch/mips/mm/cerr-sb1.c b/arch/mips/mm/cerr-sb1.c
index e7f539e3..1bd1f18 100644
--- a/arch/mips/mm/cerr-sb1.c
+++ b/arch/mips/mm/cerr-sb1.c
@@ -154,7 +154,7 @@
if (status & ~(1UL << 31)) {
l2_err = csr_in32(IOADDR(A_BUS_L2_ERRORS));
#ifdef DUMP_L2_ECC_TAG_ON_ERROR
- l2_tag = in64(IO_SPACE_BASE | A_L2_ECC_TAG);
+ l2_tag = in64(IOADDR(A_L2_ECC_TAG));
#endif
memio_err = csr_in32(IOADDR(A_BUS_MEM_IO_ERRORS));
printk("Bus watcher error counters: %08x %08x\n", l2_err, memio_err);
@@ -183,9 +183,9 @@
#ifdef CONFIG_SIBYTE_BW_TRACE
/* Freeze the trace buffer now */
#if defined(CONFIG_SIBYTE_BCM1x55) || defined(CONFIG_SIBYTE_BCM1x80)
- csr_out32(M_BCM1480_SCD_TRACE_CFG_FREEZE, IO_SPACE_BASE | A_SCD_TRACE_CFG);
+ csr_out32(M_BCM1480_SCD_TRACE_CFG_FREEZE, IOADDR(A_SCD_TRACE_CFG));
#else
- csr_out32(M_SCD_TRACE_CFG_FREEZE, IO_SPACE_BASE | A_SCD_TRACE_CFG);
+ csr_out32(M_SCD_TRACE_CFG_FREEZE, IOADDR(A_SCD_TRACE_CFG));
#endif
printk("Trace buffer frozen\n");
#endif
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 110ee76..ec3b9e9 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -426,7 +426,7 @@
#ifdef CONFIG_HIGHMEM
for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) {
- struct page *page = mem_map + tmp;
+ struct page *page = pfn_to_page(tmp);
if (!page_is_ram(tmp)) {
SetPageReserved(page);
diff --git a/arch/mips/pci/fixup-sni.c b/arch/mips/pci/fixup-sni.c
index a45bedd..5c8a79b 100644
--- a/arch/mips/pci/fixup-sni.c
+++ b/arch/mips/pci/fixup-sni.c
@@ -113,6 +113,16 @@
{ 0, INTA, INTB, INTC, INTD }, /* Slot 5 */
};
+static char irq_tab_pcit_cplus[13][5] __initdata = {
+ /* INTA INTB INTC INTD */
+ { 0, 0, 0, 0, 0 }, /* HOST bridge */
+ { 0, INTB, INTC, INTD, INTA }, /* PCI Slot 9 */
+ { 0, 0, 0, 0, 0 }, /* PCI-EISA */
+ { 0, 0, 0, 0, 0 }, /* Unused */
+ { 0, INTA, INTB, INTC, INTD }, /* PCI-PCI bridge */
+ { 0, INTB, INTC, INTD, INTA }, /* fixup */
+};
+
static inline int is_rm300_revd(void)
{
unsigned char csmsr = *(volatile unsigned char *)PCIMT_CSMSR;
@@ -123,8 +133,19 @@
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
switch (sni_brd_type) {
- case SNI_BRD_PCI_TOWER:
case SNI_BRD_PCI_TOWER_CPLUS:
+ if (slot == 4) {
+ /*
+ * SNI messed up interrupt wiring for onboard
+ * PCI bus 1; we need to fix this up here
+ */
+ while (dev && dev->bus->number != 1)
+ dev = dev->bus->self;
+ if (dev && dev->devfn >= PCI_DEVFN(4, 0))
+ slot = 5;
+ }
+ return irq_tab_pcit_cplus[slot][pin];
+ case SNI_BRD_PCI_TOWER:
return irq_tab_pcit[slot][pin];
case SNI_BRD_PCI_MTOWER:
diff --git a/arch/mips/pci/pci-lasat.c b/arch/mips/pci/pci-lasat.c
index 174f314..e70ae32 100644
--- a/arch/mips/pci/pci-lasat.c
+++ b/arch/mips/pci/pci-lasat.c
@@ -5,12 +5,14 @@
*
* Copyright (C) 2000, 2001, 04 Keith M Wesolowski
*/
-#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/types.h>
+
#include <asm/bootinfo.h>
-#include <asm/lasat/lasatint.h>
+
+#include <irq.h>
extern struct pci_ops nile4_pci_ops;
extern struct pci_ops gt64xxx_pci0_ops;
@@ -55,15 +57,15 @@
arch_initcall(lasat_pci_setup);
-#define LASATINT_ETH1 (LASATINT_BASE + 0)
-#define LASATINT_ETH0 (LASATINT_BASE + 1)
-#define LASATINT_HDC (LASATINT_BASE + 2)
-#define LASATINT_COMP (LASATINT_BASE + 3)
-#define LASATINT_HDLC (LASATINT_BASE + 4)
-#define LASATINT_PCIA (LASATINT_BASE + 5)
-#define LASATINT_PCIB (LASATINT_BASE + 6)
-#define LASATINT_PCIC (LASATINT_BASE + 7)
-#define LASATINT_PCID (LASATINT_BASE + 8)
+#define LASAT_IRQ_ETH1 (LASAT_IRQ_BASE + 0)
+#define LASAT_IRQ_ETH0 (LASAT_IRQ_BASE + 1)
+#define LASAT_IRQ_HDC (LASAT_IRQ_BASE + 2)
+#define LASAT_IRQ_COMP (LASAT_IRQ_BASE + 3)
+#define LASAT_IRQ_HDLC (LASAT_IRQ_BASE + 4)
+#define LASAT_IRQ_PCIA (LASAT_IRQ_BASE + 5)
+#define LASAT_IRQ_PCIB (LASAT_IRQ_BASE + 6)
+#define LASAT_IRQ_PCIC (LASAT_IRQ_BASE + 7)
+#define LASAT_IRQ_PCID (LASAT_IRQ_BASE + 8)
int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
@@ -71,13 +73,13 @@
case 1:
case 2:
case 3:
- return LASATINT_PCIA + (((slot-1) + (pin-1)) % 4);
+ return LASAT_IRQ_PCIA + (((slot-1) + (pin-1)) % 4);
case 4:
- return LASATINT_ETH1; /* Ethernet 1 (LAN 2) */
+ return LASAT_IRQ_ETH1; /* Ethernet 1 (LAN 2) */
case 5:
- return LASATINT_ETH0; /* Ethernet 0 (LAN 1) */
+ return LASAT_IRQ_ETH0; /* Ethernet 0 (LAN 1) */
case 6:
- return LASATINT_HDC; /* IDE controller */
+ return LASAT_IRQ_HDC; /* IDE controller */
default:
return 0xff; /* Illegal */
}
diff --git a/arch/mips/pci/pci-vr41xx.c b/arch/mips/pci/pci-vr41xx.c
index 240df9e..33c4f68 100644
--- a/arch/mips/pci/pci-vr41xx.c
+++ b/arch/mips/pci/pci-vr41xx.c
@@ -154,6 +154,7 @@
pciu_write(PCICLKSELREG, QUARTER_VTCLOCK);
else {
printk(KERN_ERR "PCI Clock is over 33MHz.\n");
+ iounmap(pciu_base);
return -EINVAL;
}
diff --git a/arch/mips/qemu/Makefile b/arch/mips/qemu/Makefile
index cec24c1..2ba4ef3 100644
--- a/arch/mips/qemu/Makefile
+++ b/arch/mips/qemu/Makefile
@@ -4,6 +4,7 @@
obj-y = q-firmware.o q-irq.o q-mem.o q-setup.o q-reset.o
-obj-$(CONFIG_SMP) += q-smp.o
+obj-$(CONFIG_EARLY_PRINTK) += q-console.o
+obj-$(CONFIG_SMP) += q-smp.o
EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/qemu/q-console.c b/arch/mips/qemu/q-console.c
new file mode 100644
index 0000000..81101ae
--- /dev/null
+++ b/arch/mips/qemu/q-console.c
@@ -0,0 +1,26 @@
+#include <linux/console.h>
+#include <linux/init.h>
+#include <linux/serial_reg.h>
+#include <asm/io.h>
+
+#define PORT(offset) (0x3f8 + (offset))
+
+static inline unsigned int serial_in(int offset)
+{
+ return inb(PORT(offset));
+}
+
+static inline void serial_out(int offset, int value)
+{
+ outb(value, PORT(offset));
+}
+
+int prom_putchar(char c)
+{
+ while ((serial_in(UART_LSR) & UART_LSR_THRE) == 0)
+ ;
+
+ serial_out(UART_TX, c);
+
+ return 1;
+}
diff --git a/arch/mips/qemu/q-firmware.c b/arch/mips/qemu/q-firmware.c
index c2239b4..3ed43f4 100644
--- a/arch/mips/qemu/q-firmware.c
+++ b/arch/mips/qemu/q-firmware.c
@@ -2,6 +2,9 @@
#include <linux/string.h>
#include <asm/addrspace.h>
#include <asm/bootinfo.h>
+#include <asm/io.h>
+
+#define QEMU_PORT_BASE 0xb4000000
void __init prom_init(void)
{
@@ -15,4 +18,7 @@
} else {
add_memory_region(0x0<<20, 0x10<<20, BOOT_MEM_RAM);
}
+
+
+ set_io_port_base(QEMU_PORT_BASE);
}
diff --git a/arch/mips/qemu/q-setup.c b/arch/mips/qemu/q-setup.c
index 23d34c1..969cedc 100644
--- a/arch/mips/qemu/q-setup.c
+++ b/arch/mips/qemu/q-setup.c
@@ -6,8 +6,6 @@
extern void qemu_reboot_setup(void);
-#define QEMU_PORT_BASE 0xb4000000
-
const char *get_system_type(void)
{
return "Qemu";
@@ -20,6 +18,5 @@
void __init plat_mem_setup(void)
{
- set_io_port_base(QEMU_PORT_BASE);
qemu_reboot_setup();
}
diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c
index e28d626..db372a0 100644
--- a/arch/mips/sibyte/bcm1480/irq.c
+++ b/arch/mips/sibyte/bcm1480/irq.c
@@ -370,11 +370,11 @@
#endif
/* Setup uart 1 settings, mapper */
/* QQQ FIXME */
- __raw_writeq(M_DUART_IMR_BRK, IO_SPACE_BASE + A_DUART_IMRREG(kgdb_port));
+ __raw_writeq(M_DUART_IMR_BRK, IOADDR(A_DUART_IMRREG(kgdb_port)));
__raw_writeq(IMR_IP6_VAL,
- IO_SPACE_BASE + A_BCM1480_IMR_REGISTER(0, R_BCM1480_IMR_INTERRUPT_MAP_BASE_H) +
- (kgdb_irq<<3));
+ IOADDR(A_BCM1480_IMR_REGISTER(0, R_BCM1480_IMR_INTERRUPT_MAP_BASE_H) +
+ (kgdb_irq << 3)));
bcm1480_unmask_irq(0, kgdb_irq);
#ifdef CONFIG_GDB_CONSOLE
@@ -412,18 +412,6 @@
extern void bcm1480_mailbox_interrupt(void);
-static inline void dispatch_ip4(void)
-{
- int cpu = smp_processor_id();
- int irq = K_BCM1480_INT_TIMER_0 + cpu;
-
- /* Reset the timer */
- __raw_writeq(M_SCD_TIMER_ENABLE|M_SCD_TIMER_MODE_CONTINUOUS,
- IOADDR(A_SCD_TIMER_REGISTER(cpu, R_SCD_TIMER_CFG)));
-
- do_IRQ(irq);
-}
-
static inline void dispatch_ip2(void)
{
unsigned long long mask_h, mask_l;
@@ -451,6 +439,7 @@
asmlinkage void plat_irq_dispatch(void)
{
+ unsigned int cpu = smp_processor_id();
unsigned int pending;
#ifdef CONFIG_SIBYTE_BCM1480_PROF
@@ -467,7 +456,7 @@
#endif
if (pending & CAUSEF_IP4)
- dispatch_ip4();
+ do_IRQ(K_BCM1480_INT_TIMER_0 + cpu);
#ifdef CONFIG_SMP
else if (pending & CAUSEF_IP3)
bcm1480_mailbox_interrupt();
diff --git a/arch/mips/sni/pcimt.c b/arch/mips/sni/pcimt.c
index 4df070f..834650f 100644
--- a/arch/mips/sni/pcimt.c
+++ b/arch/mips/sni/pcimt.c
@@ -244,7 +244,7 @@
if (pend & IT_EISA) {
int irq;
/*
- * Note: ASIC PCI's builtin interrupt achknowledge feature is
+ * Note: ASIC PCI's builtin interrupt acknowledge feature is
* broken. Using it may result in loss of some or all i8259
* interrupts, so don't use PCIMT_INT_ACKNOWLEDGE ...
*/
diff --git a/arch/mips/vr41xx/common/icu.c b/arch/mips/vr41xx/common/icu.c
index 1899601..3f23d9f 100644
--- a/arch/mips/vr41xx/common/icu.c
+++ b/arch/mips/vr41xx/common/icu.c
@@ -525,6 +525,7 @@
intassign1 |= (uint16_t)assign << 9;
break;
default:
+ spin_unlock_irq(&desc->lock);
return -EINVAL;
}
@@ -592,6 +593,7 @@
intassign3 |= (uint16_t)assign << 12;
break;
default:
+ spin_unlock_irq(&desc->lock);
return -EINVAL;
}
diff --git a/arch/um/Makefile b/arch/um/Makefile
index 768a5d1..31999bc 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -168,7 +168,7 @@
$(Q)mkdir -p $(objtree)/include/asm-um
$(Q)ln -fsn $(srctree)/include/asm-$(HEADER_ARCH) include/asm-um/arch
else
- $(Q)cd $(TOPDIR)/include/asm-um && ln -sf ../asm-$(HEADER_ARCH) arch
+ $(Q)cd $(TOPDIR)/include/asm-um && ln -fsn ../asm-$(SUBARCH) arch
endif
$(objtree)/$(ARCH_DIR)/include:
@@ -180,7 +180,7 @@
ifneq ($(KBUILD_SRC),)
$(Q)ln -fsn $(srctree)/$(ARCH_DIR)/include/sysdep-$(SUBARCH) $(ARCH_DIR)/include/sysdep
else
- $(Q)cd $(ARCH_DIR)/include && ln -sf sysdep-$(SUBARCH) sysdep
+ $(Q)cd $(ARCH_DIR)/include && ln -fsn sysdep-$(SUBARCH) sysdep
endif
$(ARCH_DIR)/os:
@@ -188,7 +188,7 @@
ifneq ($(KBUILD_SRC),)
$(Q)ln -fsn $(srctree)/$(ARCH_DIR)/os-$(OS) $(ARCH_DIR)/os
else
- $(Q)cd $(ARCH_DIR) && ln -sf os-$(OS) os
+ $(Q)cd $(ARCH_DIR) && ln -fsn os-$(OS) os
endif
# Generated files
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index 8c01fa8..73681f1 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -753,6 +753,7 @@
.remove = net_remove,
};
+#ifdef CONFIG_INET
static int uml_inetaddr_event(struct notifier_block *this, unsigned long event,
void *ptr)
{
@@ -789,14 +790,13 @@
.notifier_call = uml_inetaddr_event,
};
-static int uml_net_init(void)
+static void inet_register(void)
{
struct list_head *ele;
struct uml_net_private *lp;
struct in_device *ip;
struct in_ifaddr *in;
- mconsole_register_dev(&net_mc);
register_inetaddr_notifier(¨_inetaddr_notifier);
/* Devices may have been opened already, so the uml_inetaddr_notifier
@@ -816,7 +816,17 @@
}
}
spin_unlock(&opened_lock);
+}
+#else
+static inline void inet_register(void)
+{
+}
+#endif
+static int uml_net_init(void)
+{
+ mconsole_register_dev(&net_mc);
+ inet_register();
return 0;
}
diff --git a/arch/um/include/user.h b/arch/um/include/user.h
index 99033ff..1723fac 100644
--- a/arch/um/include/user.h
+++ b/arch/um/include/user.h
@@ -1,11 +1,13 @@
/*
- * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#ifndef __USER_H__
#define __USER_H__
+#include "uml-config.h"
+
/*
* The usual definition - copied here because the kernel provides its own,
* fancier, type-safe, definition. Using that one would require
@@ -23,8 +25,17 @@
extern void panic(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
+
+#ifdef UML_CONFIG_PRINTK
extern int printk(const char *fmt, ...)
__attribute__ ((format (printf, 1, 2)));
+#else
+static inline int printk(const char *fmt, ...)
+{
+ return 0;
+}
+#endif
+
extern void schedule(void);
extern int in_aton(char *str);
extern int open_gdb_chan(void);
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index 70c2d62..ba11ccd 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -347,14 +347,15 @@
{
int err;
- err = request_irq(irq, handler, irqflags, devname, dev_id);
- if (err)
- return err;
-
- if (fd != -1)
+ if (fd != -1) {
err = activate_fd(irq, fd, type, dev_id);
- return err;
+ if (err)
+ return err;
+ }
+
+ return request_irq(irq, handler, irqflags, devname, dev_id);
}
+
EXPORT_SYMBOL(um_request_irq);
EXPORT_SYMBOL(reactivate_fd);
diff --git a/arch/um/kernel/skas/clone.c b/arch/um/kernel/skas/clone.c
index d119f4f..8d07a7a 100644
--- a/arch/um/kernel/skas/clone.c
+++ b/arch/um/kernel/skas/clone.c
@@ -3,7 +3,6 @@
#include <sys/mman.h>
#include <sys/time.h>
#include <asm/unistd.h>
-#include <asm/page.h>
#include "as-layout.h"
#include "ptrace_user.h"
#include "skas.h"
diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index b542a3a..f834627 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -496,8 +496,7 @@
n = recvmsg(fd, &msg, 0);
if(n < 0)
return -errno;
-
- else if(n != sizeof(iov.iov_len))
+ else if(n != iov.iov_len)
*helper_pid_out = -1;
cmsg = CMSG_FIRSTHDR(&msg);
diff --git a/arch/x86/Kconfig.i386 b/arch/x86/Kconfig
similarity index 74%
rename from arch/x86/Kconfig.i386
rename to arch/x86/Kconfig
index 7331efe..368864d 100644
--- a/arch/x86/Kconfig.i386
+++ b/arch/x86/Kconfig
@@ -1,18 +1,24 @@
-#
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/kconfig-language.txt.
-#
+# x86 configuration
+mainmenu "Linux Kernel Configuration for x86"
-mainmenu "Linux Kernel Configuration"
+# Select 32 or 64 bit
+config 64BIT
+ bool "64-bit kernel" if ARCH = "x86"
+ default ARCH = "x86_64"
+ help
+ Say yes to build a 64-bit kernel - formerly known as x86_64
+ Say no to build a 32-bit kernel - formerly known as i386
config X86_32
+ def_bool !64BIT
+
+config X86_64
+ def_bool 64BIT
+
+### Arch settings
+config X86
bool
default y
- help
- This is Linux's home port. Linux was originally native to the Intel
- 386, and runs on all the later x86 processors including the Intel
- 486, 586, Pentiums, and various instruction-set-compatible chips by
- AMD, Cyrix, and others.
config GENERIC_TIME
bool
@@ -33,7 +39,7 @@
config GENERIC_CLOCKEVENTS_BROADCAST
bool
default y
- depends on X86_LOCAL_APIC
+ depends on X86_64 || (X86_32 && X86_LOCAL_APIC)
config LOCKDEP_SUPPORT
bool
@@ -47,10 +53,6 @@
bool
default y
-config X86
- bool
- default y
-
config MMU
bool
default y
@@ -61,7 +63,7 @@
config QUICKLIST
bool
- default y
+ default X86_32
config SBUS
bool
@@ -91,6 +93,76 @@
bool
default y
+config RWSEM_GENERIC_SPINLOCK
+ def_bool !X86_XADD
+
+config RWSEM_XCHGADD_ALGORITHM
+ def_bool X86_XADD
+
+config ARCH_HAS_ILOG2_U32
+ def_bool n
+
+config ARCH_HAS_ILOG2_U64
+ def_bool n
+
+config GENERIC_CALIBRATE_DELAY
+ def_bool y
+
+config GENERIC_TIME_VSYSCALL
+ bool
+ default X86_64
+
+
+
+
+
+config ZONE_DMA32
+ bool
+ default X86_64
+
+config ARCH_POPULATES_NODE_MAP
+ def_bool y
+
+config AUDIT_ARCH
+ bool
+ default X86_64
+
+# Use the generic interrupt handling code in kernel/irq/:
+config GENERIC_HARDIRQS
+ bool
+ default y
+
+config GENERIC_IRQ_PROBE
+ bool
+ default y
+
+config GENERIC_PENDING_IRQ
+ bool
+ depends on GENERIC_HARDIRQS && SMP
+ default y
+
+config X86_SMP
+ bool
+ depends on X86_32 && SMP && !X86_VOYAGER
+ default y
+
+config X86_HT
+ bool
+ depends on SMP && !(X86_VISWS || X86_VOYAGER || MK8)
+ default y
+
+config X86_BIOS_REBOOT
+ bool
+ depends on X86_32 && !(X86_VISWS || X86_VOYAGER)
+ default y
+
+config X86_TRAMPOLINE
+ bool
+ depends on X86_SMP || (X86_VOYAGER && SMP)
+ default y
+
+config KTIME_SCALAR
+ def_bool X86_32
source "init/Kconfig"
menu "Processor type and features"
@@ -137,6 +209,7 @@
config X86_ELAN
bool "AMD Elan"
+ depends on X86_32
help
Select this for an AMD Elan processor.
@@ -146,6 +219,7 @@
config X86_VOYAGER
bool "Voyager (NCR)"
+ depends on X86_32
select SMP if !BROKEN
help
Voyager is an MCA-based 32-way capable SMP architecture proprietary
@@ -160,6 +234,7 @@
bool "NUMAQ (IBM/Sequent)"
select SMP
select NUMA
+ depends on X86_32
help
This option is used for getting Linux to run on a (IBM/Sequent) NUMA
multiquad box. This changes the way that processors are bootstrapped,
@@ -169,7 +244,7 @@
config X86_SUMMIT
bool "Summit/EXA (IBM x440)"
- depends on SMP
+ depends on X86_32 && SMP
help
This option is needed for IBM systems that use the Summit/EXA chipset.
In particular, it is needed for the x440.
@@ -179,7 +254,7 @@
config X86_BIGSMP
bool "Support for other sub-arch SMP systems with more than 8 CPUs"
- depends on SMP
+ depends on X86_32 && SMP
help
This option is needed for the systems that have more than 8 CPUs
and if the system is not of any sub-arch type above.
@@ -188,6 +263,7 @@
config X86_VISWS
bool "SGI 320/540 (Visual Workstation)"
+ depends on X86_32
help
The SGI Visual Workstation series is an IA32-based workstation
based on SGI systems chips with some legacy PC hardware attached.
@@ -199,6 +275,7 @@
config X86_GENERICARCH
bool "Generic architecture (Summit, bigsmp, ES7000, default)"
+ depends on X86_32
help
This option compiles in the Summit, bigsmp, ES7000, default subarchitectures.
It is intended for a generic binary kernel.
@@ -206,18 +283,27 @@
config X86_ES7000
bool "Support for Unisys ES7000 IA32 series"
- depends on SMP
+ depends on X86_32 && SMP
help
Support for Unisys ES7000 systems. Say 'Y' here if this kernel is
supposed to run on an IA32-based Unisys ES7000 system.
Only choose this option if you have such a system, otherwise you
should say N here.
+config X86_VSMP
+ bool "Support for ScaleMP vSMP"
+ depends on X86_64 && 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
+ if you have one of these machines.
+
endchoice
config SCHED_NO_NO_OMIT_FRAME_POINTER
bool "Single-depth WCHAN output"
default y
+ depends on X86_32
help
Calculate simpler /proc/<PID>/wchan values. If this option
is disabled then wchan values will recurse back to the
@@ -228,7 +314,7 @@
config PARAVIRT
bool
- depends on !(X86_VISWS || X86_VOYAGER)
+ depends on X86_32 && !(X86_VISWS || X86_VOYAGER)
help
This changes the kernel so it can modify itself when it is run
under a hypervisor, potentially improving performance significantly
@@ -237,6 +323,7 @@
menuconfig PARAVIRT_GUEST
bool "Paravirtualized guest support"
+ depends on X86_32
help
Say Y here to get to see options related to running Linux under
various hypervisors. This option alone does not add any kernel code.
@@ -264,7 +351,7 @@
config ACPI_SRAT
bool
default y
- depends on ACPI && NUMA && (X86_SUMMIT || X86_GENERICARCH)
+ depends on X86_32 && ACPI && NUMA && (X86_SUMMIT || X86_GENERICARCH)
select ACPI_NUMA
config HAVE_ARCH_PARSE_SRAT
@@ -275,12 +362,12 @@
config X86_SUMMIT_NUMA
bool
default y
- depends on NUMA && (X86_SUMMIT || X86_GENERICARCH)
+ depends on X86_32 && NUMA && (X86_SUMMIT || X86_GENERICARCH)
config X86_CYCLONE_TIMER
bool
default y
- depends on X86_SUMMIT || X86_GENERICARCH
+ depends on X86_32 && X86_SUMMIT || X86_GENERICARCH
config ES7000_CLUSTERED_APIC
bool
@@ -290,21 +377,89 @@
source "arch/x86/Kconfig.cpu"
config HPET_TIMER
- bool "HPET Timer Support"
+ bool
+ prompt "HPET Timer Support" if X86_32
+ default X86_64
help
- This enables the use of the HPET for the kernel's internal timer.
- HPET is the next generation timer replacing legacy 8254s.
- You can safely choose Y here. However, HPET will only be
- activated if the platform and the BIOS support this feature.
- Otherwise the 8254 will be used for timing services.
+ Use the IA-PC HPET (High Precision Event Timer) to manage
+ time in preference to the PIT and RTC, if a HPET is
+ present.
+ HPET is the next generation timer replacing legacy 8254s.
+ The HPET provides a stable time base on SMP
+ systems, unlike the TSC, but it is more expensive to access,
+ as it is off-chip. You can find the HPET spec at
+ <http://www.intel.com/hardwaredesign/hpetspec.htm>.
- Choose N to continue using the legacy 8254 timer.
+ You can safely choose Y here. However, HPET will only be
+ activated if the platform and the BIOS support this feature.
+ Otherwise the 8254 will be used for timing services.
+
+ Choose N to continue using the legacy 8254 timer.
config HPET_EMULATE_RTC
bool
depends on HPET_TIMER && RTC=y
default y
+# Mark as embedded because too many people got it wrong.
+# The code disables itself when not needed.
+config GART_IOMMU
+ bool "GART IOMMU support" if EMBEDDED
+ default y
+ select SWIOTLB
+ select AGP
+ depends on X86_64 && PCI
+ help
+ Support for full DMA access of devices with 32bit memory access only
+ on systems with more than 3GB. This is usually needed for USB,
+ sound, many IDE/SATA chipsets and some other devices.
+ Provides a driver for the AMD Athlon64/Opteron/Turion/Sempron GART
+ based hardware IOMMU and a software bounce buffer based IOMMU used
+ on Intel systems and as fallback.
+ The code is only active when needed (enough memory and limited
+ device) unless CONFIG_IOMMU_DEBUG or iommu=force is specified
+ too.
+
+config CALGARY_IOMMU
+ bool "IBM Calgary IOMMU support"
+ select SWIOTLB
+ depends on X86_64 && PCI && EXPERIMENTAL
+ help
+ Support for hardware IOMMUs in IBM's xSeries x366 and x460
+ systems. Needed to run systems with more than 3GB of memory
+ properly with 32-bit PCI devices that do not support DAC
+ (Double Address Cycle). Calgary also supports bus level
+ isolation, where all DMAs pass through the IOMMU. This
+ prevents them from going anywhere except their intended
+ destination. This catches hard-to-find kernel bugs and
+ mis-behaving drivers and devices that do not use the DMA-API
+ properly to set up their DMA buffers. The IOMMU can be
+ turned off at boot time with the iommu=off parameter.
+ Normally the kernel will make the right choice by itself.
+ If unsure, say Y.
+
+config CALGARY_IOMMU_ENABLED_BY_DEFAULT
+ bool "Should Calgary be enabled by default?"
+ default y
+ depends on CALGARY_IOMMU
+ help
+ Should Calgary be enabled by default? if you choose 'y', Calgary
+ will be used (if it exists). If you choose 'n', Calgary will not be
+ used even if it exists. If you choose 'n' and would like to use
+ Calgary anyway, pass 'iommu=calgary' on the kernel command line.
+ If unsure, say Y.
+
+# need this always selected by IOMMU for the VIA workaround
+config SWIOTLB
+ bool
+ help
+ Support for software bounce buffers used on x86-64 systems
+ which don't have a hardware IOMMU (e.g. the current generation
+ of Intel's x86-64 CPUs). Using this PCI devices which can only
+ access 32-bits of memory can be used on systems with more than
+ 3 GB of memory. If unsure, say Y.
+
+
config NR_CPUS
int "Maximum number of CPUs (2-255)"
range 2 255
@@ -321,7 +476,7 @@
config SCHED_SMT
bool "SMT (Hyperthreading) scheduler support"
- depends on X86_HT
+ depends on (X86_64 && SMP) || (X86_32 && X86_HT)
help
SMT scheduler support improves the CPU scheduler's decision making
when dealing with Intel Pentium 4 chips with HyperThreading at a
@@ -330,7 +485,7 @@
config SCHED_MC
bool "Multi-core scheduler support"
- depends on X86_HT
+ depends on (X86_64 && SMP) || (X86_32 && X86_HT)
default y
help
Multi-core scheduler support improves the CPU scheduler's decision
@@ -341,7 +496,7 @@
config X86_UP_APIC
bool "Local APIC support on uniprocessors"
- depends on !SMP && !(X86_VISWS || X86_VOYAGER || X86_GENERICARCH)
+ depends on X86_32 && !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
@@ -366,17 +521,17 @@
config X86_LOCAL_APIC
bool
- depends on X86_UP_APIC || ((X86_VISWS || SMP) && !X86_VOYAGER) || X86_GENERICARCH
+ depends on X86_64 || (X86_32 && (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)) || X86_GENERICARCH
+ depends on X86_64 || (X86_32 && (X86_UP_IOAPIC || (SMP && !(X86_VISWS || X86_VOYAGER)) || X86_GENERICARCH))
default y
config X86_VISWS_APIC
bool
- depends on X86_VISWS
+ depends on X86_32 && X86_VISWS
default y
config X86_MCE
@@ -396,9 +551,25 @@
to disable it. MCE support simply ignores non-MCE processors like
the 386 and 486, so nearly everyone can say Y here.
+config X86_MCE_INTEL
+ bool "Intel MCE features"
+ depends on X86_64 && X86_MCE && X86_LOCAL_APIC
+ default y
+ help
+ Additional support for intel specific MCE features such as
+ the thermal monitor.
+
+config X86_MCE_AMD
+ bool "AMD MCE features"
+ depends on X86_64 && X86_MCE && X86_LOCAL_APIC
+ default y
+ help
+ Additional support for AMD specific MCE features such as
+ the DRAM Error Threshold.
+
config X86_MCE_NONFATAL
tristate "Check for non-fatal errors on AMD Athlon/Duron / Intel Pentium 4"
- depends on X86_MCE
+ depends on X86_32 && X86_MCE
help
Enabling this feature starts a timer that triggers every 5 seconds which
will look at the machine check registers to see if anything happened.
@@ -411,14 +582,15 @@
config X86_MCE_P4THERMAL
bool "check for P4 thermal throttling interrupt."
- depends on X86_MCE && (X86_UP_APIC || SMP) && !X86_VISWS
+ depends on X86_32 && X86_MCE && (X86_UP_APIC || SMP) && !X86_VISWS
help
Enabling this feature will cause a message to be printed when the P4
enters thermal throttling.
config VM86
- default y
bool "Enable VM86 support" if EMBEDDED
+ default y
+ depends on X86_32
help
This option is required by programs like DOSEMU to run 16-bit legacy
code on X86 processors. It also may be needed by software like
@@ -427,6 +599,7 @@
config TOSHIBA
tristate "Toshiba Laptop support"
+ depends on X86_32
---help---
This adds a driver to safely access the System Management Mode of
the CPU on Toshiba portables with a genuine Toshiba BIOS. It does
@@ -442,6 +615,7 @@
config I8K
tristate "Dell laptop support"
+ depends on X86_32
---help---
This adds a driver to safely access the System Management Mode
of the CPU on the Dell Inspiron 8000. The System Management Mode
@@ -462,7 +636,7 @@
config X86_REBOOTFIXUPS
bool "Enable X86 board specific fixups for reboot"
- depends on X86
+ depends on X86_32 && X86
default n
---help---
This enables chipset and/or board specific fixups to be done
@@ -517,12 +691,11 @@
with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to
/dev/cpu/31/cpuid.
-source "drivers/firmware/Kconfig"
-
choice
prompt "High Memory Support"
default HIGHMEM4G if !X86_NUMAQ
default HIGHMEM64G if X86_NUMAQ
+ depends on X86_32
config NOHIGHMEM
bool "off"
@@ -582,6 +755,7 @@
depends on EXPERIMENTAL
prompt "Memory split" if EMBEDDED
default VMSPLIT_3G
+ depends on X86_32
help
Select the desired split between kernel and user memory.
@@ -619,16 +793,17 @@
default 0x78000000 if VMSPLIT_2G_OPT
default 0x40000000 if VMSPLIT_1G
default 0xC0000000
+ depends on X86_32
config HIGHMEM
bool
- depends on HIGHMEM64G || HIGHMEM4G
+ depends on X86_32 && (HIGHMEM64G || HIGHMEM4G)
default y
config X86_PAE
bool "PAE (Physical Address Extension) Support"
default n
- depends on !HIGHMEM4G
+ depends on X86_32 && !HIGHMEM4G
select RESOURCES_64BIT
help
PAE is required for NX support, and furthermore enables
@@ -639,46 +814,82 @@
# Common NUMA Features
config NUMA
bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
- depends on SMP && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI) && EXPERIMENTAL
+ depends on SMP
+ depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI) && EXPERIMENTAL)
default n if X86_PC
default y if (X86_NUMAQ || X86_SUMMIT)
help
- NUMA support for i386. This is currently highly experimental
- and should be only used for kernel development. It might also
- cause boot failures.
+ Enable NUMA (Non Uniform Memory Access) support.
+ The kernel will try to allocate memory used by a CPU on the
+ local memory controller of the CPU and add some more
+ NUMA awareness to the kernel.
+
+ For i386 this is currently highly experimental and should be only
+ used for kernel development. It might also cause boot failures.
+ For x86_64 this is recommended on all multiprocessor Opteron systems.
+ If the system is EM64T, you should say N unless your system is
+ EM64T NUMA.
comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
- depends on X86_SUMMIT && (!HIGHMEM64G || !ACPI)
+ depends on X86_32 && X86_SUMMIT && (!HIGHMEM64G || !ACPI)
+
+config K8_NUMA
+ bool "Old style AMD Opteron NUMA detection"
+ depends on X86_64 && NUMA && PCI
+ default y
+ help
+ Enable K8 NUMA node topology detection. You should say Y here if
+ you have a multi processor AMD K8 system. This uses an old
+ method to read the NUMA configuration directly from the builtin
+ Northbridge of Opteron. It is recommended to use X86_64_ACPI_NUMA
+ instead, which also takes priority if both are compiled in.
+
+config X86_64_ACPI_NUMA
+ bool "ACPI NUMA detection"
+ depends on X86_64 && NUMA && ACPI && PCI
+ select ACPI_NUMA
+ default y
+ help
+ Enable ACPI SRAT based node topology detection.
+
+config NUMA_EMU
+ bool "NUMA emulation"
+ depends on X86_64 && NUMA
+ help
+ Enable NUMA emulation. A flat machine will be split
+ into virtual nodes when booted with "numa=fake=N", where N is the
+ number of nodes. This is only useful for debugging.
config NODES_SHIFT
int
+ default "6" if X86_64
default "4" if X86_NUMAQ
default "3"
depends on NEED_MULTIPLE_NODES
config HAVE_ARCH_BOOTMEM_NODE
bool
- depends on NUMA
+ depends on X86_32 && NUMA
default y
config ARCH_HAVE_MEMORY_PRESENT
bool
- depends on DISCONTIGMEM
+ depends on X86_32 && DISCONTIGMEM
default y
config NEED_NODE_MEMMAP_SIZE
bool
- depends on DISCONTIGMEM || SPARSEMEM
+ depends on X86_32 && (DISCONTIGMEM || SPARSEMEM)
default y
config HAVE_ARCH_ALLOC_REMAP
bool
- depends on NUMA
+ depends on X86_32 && NUMA
default y
config ARCH_FLATMEM_ENABLE
def_bool y
- depends on (ARCH_SELECT_MEMORY_MODEL && X86_PC)
+ depends on (X86_32 && ARCH_SELECT_MEMORY_MODEL && X86_PC) || (X86_64 && !NUMA)
config ARCH_DISCONTIGMEM_ENABLE
def_bool y
@@ -690,21 +901,23 @@
config ARCH_SPARSEMEM_ENABLE
def_bool y
- depends on (NUMA || (X86_PC && EXPERIMENTAL))
- select SPARSEMEM_STATIC
+ depends on NUMA || (EXPERIMENTAL && (X86_PC || X86_64))
+ select SPARSEMEM_STATIC if X86_32
+ select SPARSEMEM_VMEMMAP_ENABLE if X86_64
config ARCH_SELECT_MEMORY_MODEL
def_bool y
- depends on ARCH_SPARSEMEM_ENABLE
+ depends on X86_32 && ARCH_SPARSEMEM_ENABLE
-config ARCH_POPULATES_NODE_MAP
- def_bool y
+config ARCH_MEMORY_PROBE
+ def_bool X86_64
+ depends on MEMORY_HOTPLUG
source "mm/Kconfig"
config HIGHPTE
bool "Allocate 3rd-level pagetables from highmem"
- depends on HIGHMEM4G || HIGHMEM64G
+ depends on X86_32 && (HIGHMEM4G || HIGHMEM64G)
help
The VM uses one page table entry for each page of physical memory.
For systems with a lot of RAM, this can be wasteful of precious
@@ -712,7 +925,8 @@
entries in high memory.
config MATH_EMULATION
- bool "Math emulation"
+ bool
+ prompt "Math emulation" if X86_32
---help---
Linux can emulate a math coprocessor (used for floating point
operations) if you don't have one. 486DX and Pentium processors have
@@ -772,7 +986,7 @@
config EFI
bool "Boot from EFI support"
- depends on ACPI
+ depends on X86_32 && ACPI
default n
---help---
This enables the kernel to boot on EFI platforms using
@@ -789,18 +1003,18 @@
kernel should continue to boot on existing non-EFI platforms.
config IRQBALANCE
- bool "Enable kernel irq balancing"
- depends on SMP && X86_IO_APIC
+ bool "Enable kernel irq balancing"
+ depends on X86_32 && SMP && X86_IO_APIC
default y
help
- The default yes will allow the kernel to do irq load balancing.
+ The default yes will allow the kernel to do irq load balancing.
Saying no will keep the kernel from doing irq load balancing.
# turning this on wastes a bunch of space.
# Summit needs it only when NUMA is on
config BOOT_IOREMAP
bool
- depends on (((X86_SUMMIT || X86_GENERICARCH) && NUMA) || (X86 && EFI))
+ depends on X86_32 && (((X86_SUMMIT || X86_GENERICARCH) && NUMA) || (X86 && EFI))
default y
config SECCOMP
@@ -820,6 +1034,30 @@
If unsure, say Y. Only embedded should say N here.
+config CC_STACKPROTECTOR
+ bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
+ depends on X86_64 && 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 KEXEC
@@ -841,7 +1079,7 @@
config CRASH_DUMP
bool "kernel crash dumps (EXPERIMENTAL)"
depends on EXPERIMENTAL
- depends on HIGHMEM
+ depends on X86_64 || (X86_32 && HIGHMEM)
help
Generate crash dump after being started by kexec.
This should be normally only set in special crash dump kernels
@@ -856,6 +1094,7 @@
config PHYSICAL_START
hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
default "0x1000000" if X86_NUMAQ
+ default "0x200000" if X86_64
default "0x100000"
help
This gives the physical address where the kernel is loaded.
@@ -908,25 +1147,31 @@
must live at a different physical address than the primary
kernel.
+ Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
+ it has been loaded at and the compile time physical address
+ (CONFIG_PHYSICAL_START) is ignored.
+
config PHYSICAL_ALIGN
- hex "Alignment value to which kernel should be aligned"
- default "0x100000"
+ hex
+ prompt "Alignment value to which kernel should be aligned" if X86_32
+ default "0x100000" if X86_32
+ default "0x200000" if X86_64
range 0x2000 0x400000
help
This value puts the alignment restrictions on physical address
- where kernel is loaded and run from. Kernel is compiled for an
- address which meets above alignment restriction.
+ where kernel is loaded and run from. Kernel is compiled for an
+ address which meets above alignment restriction.
- If bootloader loads the kernel at a non-aligned address and
- CONFIG_RELOCATABLE is set, kernel will move itself to nearest
- address aligned to above value and run from there.
+ If bootloader loads the kernel at a non-aligned address and
+ CONFIG_RELOCATABLE is set, kernel will move itself to nearest
+ address aligned to above value and run from there.
- If bootloader loads the kernel at a non-aligned address and
- CONFIG_RELOCATABLE is not set, kernel will ignore the run time
- load address and decompress itself to the address it has been
- compiled for and run from there. The address for which kernel is
- compiled already meets above alignment restrictions. Hence the
- end result is that kernel runs from a physical address meeting
+ If bootloader loads the kernel at a non-aligned address and
+ CONFIG_RELOCATABLE is not set, kernel will ignore the run time
+ load address and decompress itself to the address it has been
+ compiled for and run from there. The address for which kernel is
+ compiled already meets above alignment restrictions. Hence the
+ end result is that kernel runs from a physical address meeting
above alignment restrictions.
Don't change this unless you know what you are doing.
@@ -938,10 +1183,13 @@
Say Y here to experiment with turning CPUs off and on, and to
enable suspend on SMP systems. CPUs can be controlled through
/sys/devices/system/cpu.
+ Say N if you want to disable CPU hotplug and don't need to
+ suspend.
config COMPAT_VDSO
bool "Compat VDSO support"
default y
+ depends on X86_32
help
Map the VDSO to the predictable old-style address too.
---help---
@@ -955,18 +1203,35 @@
config ARCH_ENABLE_MEMORY_HOTPLUG
def_bool y
- depends on HIGHMEM
+ depends on X86_64 || (X86_32 && HIGHMEM)
-menu "Power management options (ACPI, APM)"
+config MEMORY_HOTPLUG_RESERVE
+ def_bool X86_64
+ depends on (MEMORY_HOTPLUG && DISCONTIGMEM)
+
+config HAVE_ARCH_EARLY_PFN_TO_NID
+ def_bool X86_64
+ depends on NUMA
+
+config OUT_OF_LINE_PFN_TO_PAGE
+ def_bool X86_64
+ depends on DISCONTIGMEM
+
+menu "Power management options"
depends on !X86_VOYAGER
-source kernel/power/Kconfig
+config ARCH_HIBERNATION_HEADER
+ bool
+ depends on X86_64 && HIBERNATION
+ default y
+
+source "kernel/power/Kconfig"
source "drivers/acpi/Kconfig"
menuconfig APM
tristate "APM (Advanced Power Management) BIOS support"
- depends on PM_SLEEP && !X86_VISWS
+ depends on X86_32 && PM_SLEEP && !X86_VISWS
---help---
APM is a BIOS specification for saving power using several different
techniques. This is mostly useful for battery powered laptops with
@@ -1092,13 +1357,14 @@
endif # APM
-source "arch/x86/kernel/cpu/cpufreq/Kconfig_32"
+source "arch/x86/kernel/cpu/cpufreq/Kconfig"
source "drivers/cpuidle/Kconfig"
endmenu
-menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
+
+menu "Bus options (PCI etc.)"
config PCI
bool "PCI support" if !X86_VISWS
@@ -1118,7 +1384,7 @@
choice
prompt "PCI access mode"
- depends on PCI && !X86_VISWS
+ depends on X86_32 && PCI && !X86_VISWS
default PCI_GOANY
---help---
On PCI systems, the BIOS can be used to detect the PCI devices and
@@ -1151,17 +1417,18 @@
config PCI_BIOS
bool
- depends on !X86_VISWS && PCI && (PCI_GOBIOS || PCI_GOANY)
+ depends on X86_32 && !X86_VISWS && PCI && (PCI_GOBIOS || PCI_GOANY)
default y
+# x86-64 doesn't support PCI BIOS access from long mode so always go direct.
config PCI_DIRECT
bool
- depends on PCI && ((PCI_GODIRECT || PCI_GOANY) || X86_VISWS)
+ depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY) || X86_VISWS)
default y
config PCI_MMCONFIG
bool
- depends on PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY)
+ depends on X86_32 && PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY)
default y
config PCI_DOMAINS
@@ -1169,14 +1436,52 @@
depends on PCI
default y
+config PCI_MMCONFIG
+ bool "Support mmconfig PCI config space access"
+ depends on X86_64 && PCI && ACPI
+
+config DMAR
+ bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
+ depends on X86_64 && PCI_MSI && ACPI && EXPERIMENTAL
+ help
+ DMA remapping (DMAR) devices support enables independent address
+ translations for Direct Memory Access (DMA) from devices.
+ These DMA remapping devices are reported via ACPI tables
+ and include PCI device scope covered by these DMA
+ remapping devices.
+
+config DMAR_GFX_WA
+ bool "Support for Graphics workaround"
+ depends on DMAR
+ default y
+ help
+ Current Graphics drivers tend to use physical address
+ for DMA and avoid using DMA APIs. Setting this config
+ option permits the IOMMU driver to set a unity map for
+ all the OS-visible memory. Hence the driver can continue
+ to use physical addresses for DMA.
+
+config DMAR_FLOPPY_WA
+ bool
+ depends on DMAR
+ default y
+ help
+ Floppy disk drivers are know to bypass DMA API calls
+ thereby failing to work when IOMMU is enabled. This
+ workaround will setup a 1:1 mapping for the first
+ 16M to make floppy (an ISA device) work.
+
source "drivers/pci/pcie/Kconfig"
source "drivers/pci/Kconfig"
+# x86_64 have no ISA slots, but do have ISA-style DMA.
config ISA_DMA_API
bool
default y
+if X86_32
+
config ISA
bool "ISA support"
depends on !(X86_VOYAGER || X86_VISWS)
@@ -1248,9 +1553,11 @@
MFGPTs have a better resolution and max interval than the
generic PIT, and are suitable for use as high-res timers.
+endif # X86_32
+
config K8_NB
def_bool y
- depends on AGP_AMD64
+ depends on AGP_AMD64 || (X86_64 && (GART_IOMMU || (PCI && NUMA)))
source "drivers/pcmcia/Kconfig"
@@ -1258,16 +1565,48 @@
endmenu
-menu "Executable file formats"
+
+menu "Executable file formats / Emulations"
source "fs/Kconfig.binfmt"
+config IA32_EMULATION
+ bool "IA32 Emulation"
+ depends on X86_64
+ help
+ Include code to run 32-bit programs under a 64-bit kernel. You should
+ likely turn this on, unless you're 100% sure that you don't have any
+ 32-bit programs left.
+
+config IA32_AOUT
+ tristate "IA32 a.out support"
+ depends on IA32_EMULATION
+ help
+ Support old a.out binaries in the 32bit emulation.
+
+config COMPAT
+ bool
+ depends on IA32_EMULATION
+ default y
+
+config COMPAT_FOR_U64_ALIGNMENT
+ def_bool COMPAT
+ depends on X86_64
+
+config SYSVIPC_COMPAT
+ bool
+ depends on X86_64 && COMPAT && SYSVIPC
+ default y
+
endmenu
+
source "net/Kconfig"
source "drivers/Kconfig"
+source "drivers/firmware/Kconfig"
+
source "fs/Kconfig"
source "kernel/Kconfig.instrumentation"
@@ -1279,43 +1618,3 @@
source "crypto/Kconfig"
source "lib/Kconfig"
-
-#
-# Use the generic interrupt handling code in kernel/irq/:
-#
-config GENERIC_HARDIRQS
- bool
- default y
-
-config GENERIC_IRQ_PROBE
- bool
- default y
-
-config GENERIC_PENDING_IRQ
- bool
- depends on GENERIC_HARDIRQS && SMP
- default y
-
-config X86_SMP
- bool
- depends on SMP && !X86_VOYAGER
- default y
-
-config X86_HT
- bool
- depends on SMP && !(X86_VISWS || X86_VOYAGER)
- default y
-
-config X86_BIOS_REBOOT
- bool
- depends on !(X86_VISWS || X86_VOYAGER)
- default y
-
-config X86_TRAMPOLINE
- bool
- depends on X86_SMP || (X86_VOYAGER && SMP)
- default y
-
-config KTIME_SCALAR
- bool
- default y
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 0e2adad..c301622 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -3,11 +3,12 @@
choice
prompt "Processor family"
- default M686
+ default M686 if X86_32
+ default GENERIC_CPU if X86_64
config M386
bool "386"
- depends on !UML
+ depends on X86_32 && !UML
---help---
This is the processor type of your CPU. This information is used for
optimizing purposes. In order to compile a kernel that can run on
@@ -49,6 +50,7 @@
config M486
bool "486"
+ depends on X86_32
help
Select this for a 486 series processor, either Intel or one of the
compatible processors from AMD, Cyrix, IBM, or Intel. Includes DX,
@@ -57,6 +59,7 @@
config M586
bool "586/K5/5x86/6x86/6x86MX"
+ depends on X86_32
help
Select this for an 586 or 686 series processor such as the AMD K5,
the Cyrix 5x86, 6x86 and 6x86MX. This choice does not
@@ -64,18 +67,21 @@
config M586TSC
bool "Pentium-Classic"
+ depends on X86_32
help
Select this for a Pentium Classic processor with the RDTSC (Read
Time Stamp Counter) instruction for benchmarking.
config M586MMX
bool "Pentium-MMX"
+ depends on X86_32
help
Select this for a Pentium with the MMX graphics/multimedia
extended instructions.
config M686
bool "Pentium-Pro"
+ depends on X86_32
help
Select this for Intel Pentium Pro chips. This enables the use of
Pentium Pro extended instructions, and disables the init-time guard
@@ -83,6 +89,7 @@
config MPENTIUMII
bool "Pentium-II/Celeron(pre-Coppermine)"
+ depends on X86_32
help
Select this for Intel chips based on the Pentium-II and
pre-Coppermine Celeron core. This option enables an unaligned
@@ -92,6 +99,7 @@
config MPENTIUMIII
bool "Pentium-III/Celeron(Coppermine)/Pentium-III Xeon"
+ depends on X86_32
help
Select this for Intel chips based on the Pentium-III and
Celeron-Coppermine core. This option enables use of some
@@ -100,19 +108,14 @@
config MPENTIUMM
bool "Pentium M"
+ depends on X86_32
help
Select this for Intel Pentium M (not Pentium-4 M)
notebook chips.
-config MCORE2
- bool "Core 2/newer Xeon"
- help
- Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and 53xx)
- CPUs. You can distinguish newer from older Xeons by the CPU family
- in /proc/cpuinfo. Newer ones have 6 and older ones 15 (not a typo)
-
config MPENTIUM4
bool "Pentium-4/Celeron(P4-based)/Pentium-4 M/older Xeon"
+ depends on X86_32
help
Select this for Intel Pentium 4 chips. This includes the
Pentium 4, Pentium D, P4-based Celeron and Xeon, and
@@ -148,6 +151,7 @@
config MK6
bool "K6/K6-II/K6-III"
+ depends on X86_32
help
Select this for an AMD K6-family processor. Enables use of
some extended instructions, and passes appropriate optimization
@@ -155,6 +159,7 @@
config MK7
bool "Athlon/Duron/K7"
+ depends on X86_32
help
Select this for an AMD Athlon K7-family processor. Enables use of
some extended instructions, and passes appropriate optimization
@@ -169,6 +174,7 @@
config MCRUSOE
bool "Crusoe"
+ depends on X86_32
help
Select this for a Transmeta Crusoe processor. Treats the processor
like a 586 with TSC, and sets some GCC optimization flags (like a
@@ -176,11 +182,13 @@
config MEFFICEON
bool "Efficeon"
+ depends on X86_32
help
Select this for a Transmeta Efficeon processor.
config MWINCHIPC6
bool "Winchip-C6"
+ depends on X86_32
help
Select this for an IDT Winchip C6 chip. Linux and GCC
treat this chip as a 586TSC with some extended instructions
@@ -188,6 +196,7 @@
config MWINCHIP2
bool "Winchip-2"
+ depends on X86_32
help
Select this for an IDT Winchip-2. Linux and GCC
treat this chip as a 586TSC with some extended instructions
@@ -195,6 +204,7 @@
config MWINCHIP3D
bool "Winchip-2A/Winchip-3"
+ depends on X86_32
help
Select this for an IDT Winchip-2A or 3. Linux and GCC
treat this chip as a 586TSC with some extended instructions
@@ -204,16 +214,19 @@
config MGEODEGX1
bool "GeodeGX1"
+ depends on X86_32
help
Select this for a Geode GX1 (Cyrix MediaGX) chip.
config MGEODE_LX
bool "Geode GX/LX"
+ depends on X86_32
help
Select this for AMD Geode GX and LX processors.
config MCYRIXIII
bool "CyrixIII/VIA-C3"
+ depends on X86_32
help
Select this for a Cyrix III or C3 chip. Presently Linux and GCC
treat this chip as a generic 586. Whilst the CPU is 686 class,
@@ -225,6 +238,7 @@
config MVIAC3_2
bool "VIA C3-2 (Nehemiah)"
+ depends on X86_32
help
Select this for a VIA C3 "Nehemiah". Selecting this enables usage
of SSE and tells gcc to treat the CPU as a 686.
@@ -232,15 +246,42 @@
config MVIAC7
bool "VIA C7"
+ depends on X86_32
help
Select this for a VIA C7. Selecting this uses the correct cache
shift and tells gcc to treat the CPU as a 686.
+config MPSC
+ bool "Intel P4 / older Netburst based Xeon"
+ depends on X86_64
+ help
+ Optimize for Intel Pentium 4, Pentium D and older Nocona/Dempsey
+ Xeon CPUs with Intel 64bit which is compatible with x86-64.
+ Note that the latest Xeons (Xeon 51xx and 53xx) are not based on the
+ Netburst core and shouldn't use this option. You can distinguish them
+ using the cpu family field
+ in /proc/cpuinfo. Family 15 is an older Xeon, Family 6 a newer one.
+
+config MCORE2
+ bool "Core 2/newer Xeon"
+ help
+ Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and 53xx)
+ CPUs. You can distinguish newer from older Xeons by the CPU family
+ in /proc/cpuinfo. Newer ones have 6 and older ones 15 (not a typo)
+
+config GENERIC_CPU
+ bool "Generic-x86-64"
+ depends on X86_64
+ help
+ Generic x86-64 CPU.
+ Run equally well on all x86-64 CPUs.
+
endchoice
config X86_GENERIC
- bool "Generic x86 support"
- help
+ bool "Generic x86 support"
+ depends on X86_32
+ help
Instead of just including optimizations for the selected
x86 variant (e.g. PII, Crusoe or Athlon), include some more
generic optimizations as well. This will make the kernel
@@ -253,44 +294,31 @@
#
# Define implied options from the CPU selection here
-#
+config X86_L1_CACHE_BYTES
+ int
+ default "128" if GENERIC_CPU || MPSC
+ default "64" if MK8 || MCORE2
+ depends on X86_64
+
+config X86_INTERNODE_CACHE_BYTES
+ int
+ default "4096" if X86_VSMP
+ default X86_L1_CACHE_BYTES if !X86_VSMP
+ depends on X86_64
+
config X86_CMPXCHG
- bool
- depends on !M386
- default y
+ def_bool X86_64 || (X86_32 && !M386)
config X86_L1_CACHE_SHIFT
int
- default "7" if MPENTIUM4 || X86_GENERIC
+ default "7" if MPENTIUM4 || X86_GENERIC || GENERIC_CPU || MPSC
default "4" if X86_ELAN || M486 || M386 || MGEODEGX1
default "5" if MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX
default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MVIAC7
config X86_XADD
bool
- depends on !M386
- default y
-
-config RWSEM_GENERIC_SPINLOCK
- bool
- depends on !X86_XADD
- default y
-
-config RWSEM_XCHGADD_ALGORITHM
- bool
- depends on X86_XADD
- default y
-
-config ARCH_HAS_ILOG2_U32
- bool
- default n
-
-config ARCH_HAS_ILOG2_U64
- bool
- default n
-
-config GENERIC_CALIBRATE_DELAY
- bool
+ depends on X86_32 && !M386
default y
config X86_PPRO_FENCE
@@ -305,22 +333,22 @@
config X86_WP_WORKS_OK
bool
- depends on !M386
+ depends on X86_32 && !M386
default y
config X86_INVLPG
bool
- depends on !M386
+ depends on X86_32 && !M386
default y
config X86_BSWAP
bool
- depends on !M386
+ depends on X86_32 && !M386
default y
config X86_POPAD_OK
bool
- depends on !M386
+ depends on X86_32 && !M386
default y
config X86_ALIGNMENT_16
@@ -330,7 +358,7 @@
config X86_GOOD_APIC
bool
- depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON || MCORE2 || MVIAC7
+ depends on MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || MK8 || MEFFICEON || MCORE2 || MVIAC7 || X86_64
default y
config X86_INTEL_USERCOPY
@@ -355,7 +383,7 @@
config X86_TSC
bool
- depends on (MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2) && !X86_NUMAQ
+ depends on ((MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2) && !X86_NUMAQ) || X86_64
default y
# this should be set for all -march=.. options where the compiler
@@ -367,6 +395,7 @@
config X86_MINIMUM_CPU_FAMILY
int
- default "4" if X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK
+ default "64" if X86_64
+ default "4" if X86_32 && (X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK)
default "3"
diff --git a/arch/x86/Kconfig.x86_64 b/arch/x86/Kconfig.x86_64
deleted file mode 100644
index cc468ea..0000000
--- a/arch/x86/Kconfig.x86_64
+++ /dev/null
@@ -1,839 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/kconfig-language.txt.
-#
-# Note: ISA is disabled and will hopefully never be enabled.
-# If you managed to buy an ISA x86-64 box you'll have to fix all the
-# ISA drivers you need yourself.
-#
-
-mainmenu "Linux Kernel Configuration"
-
-config X86_64
- bool
- default y
- help
- Port to the x86-64 architecture. x86-64 is a 64-bit extension to the
- classical 32-bit x86 architecture. For details see
- <http://www.x86-64.org/>.
-
-config 64BIT
- def_bool y
-
-config X86
- bool
- default y
-
-config GENERIC_TIME
- bool
- default y
-
-config GENERIC_TIME_VSYSCALL
- bool
- default y
-
-config GENERIC_CMOS_UPDATE
- bool
- default y
-
-config CLOCKSOURCE_WATCHDOG
- bool
- default y
-
-config GENERIC_CLOCKEVENTS
- bool
- default y
-
-config GENERIC_CLOCKEVENTS_BROADCAST
- bool
- default y
-
-config ZONE_DMA32
- bool
- default y
-
-config LOCKDEP_SUPPORT
- bool
- default y
-
-config STACKTRACE_SUPPORT
- bool
- default y
-
-config SEMAPHORE_SLEEPERS
- bool
- default y
-
-config MMU
- bool
- default y
-
-config ZONE_DMA
- bool
- default y
-
-config ISA
- bool
-
-config SBUS
- bool
-
-config RWSEM_GENERIC_SPINLOCK
- bool
- default y
-
-config RWSEM_XCHGADD_ALGORITHM
- bool
-
-config GENERIC_HWEIGHT
- bool
- default y
-
-config GENERIC_CALIBRATE_DELAY
- bool
- default y
-
-config X86_CMPXCHG
- bool
- default y
-
-config GENERIC_ISA_DMA
- bool
- default y
-
-config GENERIC_IOMAP
- bool
- default y
-
-config ARCH_MAY_HAVE_PC_FDC
- bool
- default y
-
-config ARCH_POPULATES_NODE_MAP
- def_bool y
-
-config DMI
- bool
- default y
-
-config AUDIT_ARCH
- bool
- default y
-
-config GENERIC_BUG
- bool
- default y
- depends on BUG
-
-config ARCH_HAS_ILOG2_U32
- bool
- default n
-
-config ARCH_HAS_ILOG2_U64
- bool
- default n
-
-source "init/Kconfig"
-
-
-menu "Processor type and features"
-
-source "kernel/time/Kconfig"
-
-choice
- prompt "Subarchitecture Type"
- default X86_PC
-
-config X86_PC
- bool "PC-compatible"
- help
- Choose this option if your computer is a standard PC or compatible.
-
-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
- if you have one of these machines.
-
-endchoice
-
-choice
- prompt "Processor family"
- default GENERIC_CPU
-
-config MK8
- bool "AMD-Opteron/Athlon64"
- help
- Optimize for AMD Opteron/Athlon64/Hammer/K8 CPUs.
-
-config MPSC
- bool "Intel P4 / older Netburst based Xeon"
- help
- Optimize for Intel Pentium 4, Pentium D and older Nocona/Dempsey
- Xeon CPUs with Intel 64bit which is compatible with x86-64.
- Note that the latest Xeons (Xeon 51xx and 53xx) are not based on the
- Netburst core and shouldn't use this option. You can distinguish them
- using the cpu family field
- in /proc/cpuinfo. Family 15 is an older Xeon, Family 6 a newer one.
-
-config MCORE2
- bool "Intel Core2 / newer Xeon"
- help
- Optimize for Intel Core2 and newer Xeons (51xx)
- You can distinguish the newer Xeons from the older ones using
- the cpu family field in /proc/cpuinfo. 15 is an older Xeon
- (use CONFIG_MPSC then), 6 is a newer one.
-
-config GENERIC_CPU
- bool "Generic-x86-64"
- help
- Generic x86-64 CPU.
- Run equally well on all x86-64 CPUs.
-
-endchoice
-
-#
-# Define implied options from the CPU selection here
-#
-config X86_L1_CACHE_BYTES
- int
- default "128" if GENERIC_CPU || MPSC
- default "64" if MK8 || MCORE2
-
-config X86_L1_CACHE_SHIFT
- int
- default "7" if GENERIC_CPU || MPSC
- default "6" if MK8 || MCORE2
-
-config X86_INTERNODE_CACHE_BYTES
- int
- default "4096" if X86_VSMP
- default X86_L1_CACHE_BYTES if !X86_VSMP
-
-config X86_TSC
- bool
- default y
-
-config X86_GOOD_APIC
- bool
- default y
-
-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
- obviously need the actual microcode binary data itself which is
- not shipped with the Linux kernel.
-
- For latest news and information on obtaining all the required
- ingredients for this driver, check:
- <http://www.urbanmyth.org/microcode/>.
-
- To compile this driver as a module, choose M here: the
- module will be called microcode.
- 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
- This device gives privileged processes access to the x86
- Model-Specific Registers (MSRs). It is a character device with
- major 202 and minors 0 to 31 for /dev/cpu/0/msr to /dev/cpu/31/msr.
- MSR accesses are directed to a specific CPU on multi-processor
- systems.
-
-config X86_CPUID
- tristate "/dev/cpu/*/cpuid - CPU information support"
- help
- This device gives processes access to the x86 CPUID instruction to
- be executed on a specific processor. It is a character device
- with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to
- /dev/cpu/31/cpuid.
-
-config X86_HT
- bool
- depends on SMP && !MK8
- default y
-
-config MATH_EMULATION
- bool
-
-config MCA
- bool
-
-config EISA
- bool
-
-config X86_IO_APIC
- bool
- default y
-
-config X86_LOCAL_APIC
- bool
- default y
-
-config MTRR
- bool "MTRR (Memory Type Range Register) support"
- ---help---
- On Intel P6 family processors (Pentium Pro, Pentium II and later)
- the Memory Type Range Registers (MTRRs) may be used to control
- processor access to memory ranges. This is most useful if you have
- a video (VGA) card on a PCI or AGP bus. Enabling write-combining
- allows bus write transfers to be combined into a larger transfer
- before bursting over the PCI/AGP bus. This can increase performance
- of image write operations 2.5 times or more. Saying Y here creates a
- /proc/mtrr file which may be used to manipulate your processor's
- MTRRs. Typically the X server should use this.
-
- This code has a reasonably generic interface so that similar
- control registers on other processors can be easily supported
- as well.
-
- Saying Y here also fixes a problem with buggy SMP BIOSes which only
- set the MTRRs for the boot CPU and not for the secondary CPUs. This
- can lead to all sorts of problems, so it's good to say Y here.
-
- Just say Y here, all x86-64 machines support MTRRs.
-
- See <file:Documentation/mtrr.txt> for more information.
-
-config SMP
- bool "Symmetric multi-processing support"
- ---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
- you have a system with more than one CPU, say Y.
-
- If you say N here, the kernel will run on single and multiprocessor
- machines, but will use only one CPU of a multiprocessor machine. If
- you say Y here, the kernel will run on many, but not all,
- singleprocessor machines. On a singleprocessor machine, the kernel
- will run faster if you say N here.
-
- If you don't know what to do here, say N.
-
-config SCHED_SMT
- bool "SMT (Hyperthreading) scheduler support"
- depends on SMP
- default n
- help
- SMT scheduler support improves the CPU scheduler's decision making
- when dealing with Intel Pentium 4 chips with HyperThreading at a
- cost of slightly increased overhead in some places. If unsure say
- N here.
-
-config SCHED_MC
- bool "Multi-core scheduler support"
- depends on SMP
- default y
- help
- Multi-core scheduler support improves the CPU scheduler's decision
- making when dealing with multi-core CPU chips at a cost of slightly
- increased overhead in some places. If unsure say N here.
-
-source "kernel/Kconfig.preempt"
-
-config NUMA
- bool "Non Uniform Memory Access (NUMA) Support"
- depends on SMP
- help
- Enable NUMA (Non Uniform Memory Access) support. The kernel
- will try to allocate memory used by a CPU on the local memory
- controller of the CPU and add some more NUMA awareness to the kernel.
- This code is recommended on all multiprocessor Opteron systems.
- If the system is EM64T, you should say N unless your system is EM64T
- NUMA.
-
-config K8_NUMA
- bool "Old style AMD Opteron NUMA detection"
- depends on NUMA && PCI
- default y
- help
- Enable K8 NUMA node topology detection. You should say Y here if
- you have a multi processor AMD K8 system. This uses an old
- method to read the NUMA configuration directly from the builtin
- Northbridge of Opteron. It is recommended to use X86_64_ACPI_NUMA
- instead, which also takes priority if both are compiled in.
-
-config NODES_SHIFT
- int
- default "6"
- depends on NEED_MULTIPLE_NODES
-
-# Dummy CONFIG option to select ACPI_NUMA from drivers/acpi/Kconfig.
-
-config X86_64_ACPI_NUMA
- bool "ACPI NUMA detection"
- depends on NUMA
- select ACPI
- select PCI
- select ACPI_NUMA
- default y
- help
- Enable ACPI SRAT based node topology detection.
-
-config NUMA_EMU
- bool "NUMA emulation"
- depends on NUMA
- help
- Enable NUMA emulation. A flat machine will be split
- into virtual nodes when booted with "numa=fake=N", where N is the
- number of nodes. This is only useful for debugging.
-
-config ARCH_DISCONTIGMEM_ENABLE
- bool
- depends on NUMA
- default y
-
-config ARCH_DISCONTIGMEM_DEFAULT
- def_bool y
- depends on NUMA
-
-config ARCH_SPARSEMEM_ENABLE
- def_bool y
- depends on (NUMA || EXPERIMENTAL)
- select SPARSEMEM_VMEMMAP_ENABLE
-
-config ARCH_MEMORY_PROBE
- def_bool y
- depends on MEMORY_HOTPLUG
-
-config ARCH_FLATMEM_ENABLE
- def_bool y
- depends on !NUMA
-
-source "mm/Kconfig"
-
-config MEMORY_HOTPLUG_RESERVE
- def_bool y
- depends on (MEMORY_HOTPLUG && DISCONTIGMEM)
-
-config HAVE_ARCH_EARLY_PFN_TO_NID
- def_bool y
- depends on NUMA
-
-config OUT_OF_LINE_PFN_TO_PAGE
- def_bool y
- depends on DISCONTIGMEM
-
-config NR_CPUS
- int "Maximum number of CPUs (2-255)"
- range 2 255
- depends on SMP
- default "8"
- help
- This allows you to specify the maximum number of CPUs which this
- kernel will support. Current maximum is 255 CPUs due to
- APIC addressing limits. Less depending on the hardware.
-
- This is purely to save memory - each supported CPU requires
- memory in the static kernel configuration.
-
-config PHYSICAL_ALIGN
- hex
- default "0x200000"
-
-config HOTPLUG_CPU
- bool "Support for suspend on SMP and hot-pluggable CPUs (EXPERIMENTAL)"
- depends on SMP && HOTPLUG && EXPERIMENTAL
- help
- Say Y here to experiment with turning CPUs off and on. CPUs
- can be controlled through /sys/devices/system/cpu/cpu#.
- This is also required for suspend/hibernation on SMP systems.
-
- Say N if you want to disable CPU hotplug and don't need to
- suspend.
-
-config ARCH_ENABLE_MEMORY_HOTPLUG
- def_bool y
-
-config HPET_TIMER
- bool
- default y
- help
- Use the IA-PC HPET (High Precision Event Timer) to manage
- time in preference to the PIT and RTC, if a HPET is
- present. The HPET provides a stable time base on SMP
- systems, unlike the TSC, but it is more expensive to access,
- as it is off-chip. You can find the HPET spec at
- <http://www.intel.com/hardwaredesign/hpetspec.htm>.
-
-config HPET_EMULATE_RTC
- bool
- depends on HPET_TIMER && RTC=y
- default y
-
-# Mark as embedded because too many people got it wrong.
-# The code disables itself when not needed.
-config GART_IOMMU
- bool "GART IOMMU support" if EMBEDDED
- default y
- select SWIOTLB
- select AGP
- depends on PCI
- help
- Support for full DMA access of devices with 32bit memory access only
- on systems with more than 3GB. This is usually needed for USB,
- sound, many IDE/SATA chipsets and some other devices.
- Provides a driver for the AMD Athlon64/Opteron/Turion/Sempron GART
- based hardware IOMMU and a software bounce buffer based IOMMU used
- on Intel systems and as fallback.
- The code is only active when needed (enough memory and limited
- device) unless CONFIG_IOMMU_DEBUG or iommu=force is specified
- too.
-
-config CALGARY_IOMMU
- bool "IBM Calgary IOMMU support"
- select SWIOTLB
- depends on PCI && EXPERIMENTAL
- help
- Support for hardware IOMMUs in IBM's xSeries x366 and x460
- systems. Needed to run systems with more than 3GB of memory
- properly with 32-bit PCI devices that do not support DAC
- (Double Address Cycle). Calgary also supports bus level
- isolation, where all DMAs pass through the IOMMU. This
- prevents them from going anywhere except their intended
- destination. This catches hard-to-find kernel bugs and
- mis-behaving drivers and devices that do not use the DMA-API
- properly to set up their DMA buffers. The IOMMU can be
- turned off at boot time with the iommu=off parameter.
- Normally the kernel will make the right choice by itself.
- If unsure, say Y.
-
-config CALGARY_IOMMU_ENABLED_BY_DEFAULT
- bool "Should Calgary be enabled by default?"
- default y
- depends on CALGARY_IOMMU
- help
- Should Calgary be enabled by default? if you choose 'y', Calgary
- will be used (if it exists). If you choose 'n', Calgary will not be
- used even if it exists. If you choose 'n' and would like to use
- Calgary anyway, pass 'iommu=calgary' on the kernel command line.
- If unsure, say Y.
-
-# need this always selected by IOMMU for the VIA workaround
-config SWIOTLB
- bool
- help
- Support for software bounce buffers used on x86-64 systems
- which don't have a hardware IOMMU (e.g. the current generation
- of Intel's x86-64 CPUs). Using this PCI devices which can only
- access 32-bits of memory can be used on systems with more than
- 3 GB of memory. If unsure, say Y.
-
-config X86_MCE
- bool "Machine check support" if EMBEDDED
- default y
- help
- Include a machine check error handler to report hardware errors.
- This version will require the mcelog utility to decode some
- machine check error logs. See
- ftp://ftp.x86-64.org/pub/linux/tools/mcelog
-
-config X86_MCE_INTEL
- bool "Intel MCE features"
- depends on X86_MCE && X86_LOCAL_APIC
- default y
- help
- Additional support for intel specific MCE features such as
- the thermal monitor.
-
-config X86_MCE_AMD
- bool "AMD MCE features"
- depends on X86_MCE && X86_LOCAL_APIC
- default y
- help
- Additional support for AMD specific MCE features such as
- the DRAM Error Threshold.
-
-config KEXEC
- 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
- but it is independent of the system firmware. And like a reboot
- you can start any kernel with it, not just Linux.
-
- The name comes from the similarity to the exec system call.
-
- It is an ongoing process to be certain the hardware in a machine
- is properly shutdown, so do not be surprised if this code does not
- initially work for you. It may help to enable device hotplugging
- support. As of this writing the exact hardware interface is
- strongly in flux, so no good recommendation can be made.
-
-config CRASH_DUMP
- bool "kernel crash dumps (EXPERIMENTAL)"
- depends on EXPERIMENTAL
- 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, or it must be built as a relocatable image
- (CONFIG_RELOCATABLE=y).
- For more details see Documentation/kdump/kdump.txt
-
-config RELOCATABLE
- bool "Build a relocatable kernel (EXPERIMENTAL)"
- depends on EXPERIMENTAL
- help
- Builds a relocatable kernel. This enables loading and running
- a kernel binary from a different physical address than it has
- been compiled for.
-
- One use is for the kexec on panic case where the recovery kernel
- must live at a different physical address than the primary
- kernel.
-
- Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
- it has been loaded at and the compile time physical address
- (CONFIG_PHYSICAL_START) is ignored.
-
-config PHYSICAL_START
- hex "Physical address where the kernel is loaded" if (EMBEDDED || CRASH_DUMP)
- default "0x200000"
- help
- This gives the physical address where the kernel is loaded. It
- should be aligned to 2MB boundary.
-
- If kernel is a not relocatable (CONFIG_RELOCATABLE=n) then
- bzImage will decompress itself to above physical address and
- run from there. Otherwise, bzImage will run from the address where
- it has been loaded by the boot loader and will ignore above physical
- address.
-
- In normal kdump cases one does not have to set/change this option
- as now bzImage can be compiled as a completely relocatable image
- (CONFIG_RELOCATABLE=y) and be used to load and run from a different
- address. This option is mainly useful for the folks who don't want
- to use a bzImage for capturing the crash dump and want to use a
- vmlinux instead.
-
- So if you are using bzImage for capturing the crash dump, leave
- the value here unchanged to 0x200000 and set CONFIG_RELOCATABLE=y.
- Otherwise if you plan to use vmlinux for capturing the crash dump
- change this value to start of the reserved region (Typically 16MB
- 0x1000000). In other words, it can be set based on the "X" value as
- specified in the "crashkernel=YM@XM" command line boot parameter
- passed to the panic-ed kernel. Typically this parameter is set as
- crashkernel=64M@16M. Please take a look at
- Documentation/kdump/kdump.txt for more details about crash dumps.
-
- Usage of bzImage for capturing the crash dump is advantageous as
- one does not have to build two kernels. Same kernel can be used
- as production kernel and capture kernel.
-
- Don't change this unless you know what you are doing.
-
-config SECCOMP
- bool "Enable seccomp to safely compute untrusted bytecode"
- depends on PROC_FS
- default y
- help
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via /proc/<pid>/seccomp, it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
- If unsure, say Y. Only embedded should say N here.
-
-config CC_STACKPROTECTOR
- bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
- 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 K8_NB
- def_bool y
- depends on AGP_AMD64 || GART_IOMMU || (PCI && NUMA)
-
-endmenu
-
-#
-# Use the generic interrupt handling code in kernel/irq/:
-#
-config GENERIC_HARDIRQS
- bool
- default y
-
-config GENERIC_IRQ_PROBE
- bool
- default y
-
-# we have no ISA slots, but we do have ISA-style DMA.
-config ISA_DMA_API
- bool
- default y
-
-config GENERIC_PENDING_IRQ
- bool
- depends on GENERIC_HARDIRQS && SMP
- default y
-
-menu "Power management options"
-
-source kernel/power/Kconfig
-
-config ARCH_HIBERNATION_HEADER
- bool
- depends on HIBERNATION
- default y
-
-source "drivers/acpi/Kconfig"
-
-source "arch/x86/kernel/cpu/cpufreq/Kconfig_64"
-
-source "drivers/cpuidle/Kconfig"
-
-endmenu
-
-menu "Bus options (PCI etc.)"
-
-config PCI
- bool "PCI support"
- select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC)
-
-# x86-64 doesn't support PCI BIOS access from long mode so always go direct.
-config PCI_DIRECT
- bool
- depends on PCI
- default y
-
-config PCI_MMCONFIG
- bool "Support mmconfig PCI config space access"
- depends on PCI && ACPI
-
-config PCI_DOMAINS
- bool
- depends on PCI
- default y
-
-config DMAR
- bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
- depends on PCI_MSI && ACPI && EXPERIMENTAL
- help
- DMA remapping (DMAR) devices support enables independent address
- translations for Direct Memory Access (DMA) from devices.
- These DMA remapping devices are reported via ACPI tables
- and include PCI device scope covered by these DMA
- remapping devices.
-
-config DMAR_GFX_WA
- bool "Support for Graphics workaround"
- depends on DMAR
- default y
- help
- Current Graphics drivers tend to use physical address
- for DMA and avoid using DMA APIs. Setting this config
- option permits the IOMMU driver to set a unity map for
- all the OS-visible memory. Hence the driver can continue
- to use physical addresses for DMA.
-
-config DMAR_FLOPPY_WA
- bool
- depends on DMAR
- default y
- help
- Floppy disk drivers are know to bypass DMA API calls
- thereby failing to work when IOMMU is enabled. This
- workaround will setup a 1:1 mapping for the first
- 16M to make floppy (an ISA device) work.
-
-source "drivers/pci/pcie/Kconfig"
-
-source "drivers/pci/Kconfig"
-
-source "drivers/pcmcia/Kconfig"
-
-source "drivers/pci/hotplug/Kconfig"
-
-endmenu
-
-
-menu "Executable file formats / Emulations"
-
-source "fs/Kconfig.binfmt"
-
-config IA32_EMULATION
- bool "IA32 Emulation"
- help
- Include code to run 32-bit programs under a 64-bit kernel. You should
- likely turn this on, unless you're 100% sure that you don't have any
- 32-bit programs left.
-
-config IA32_AOUT
- tristate "IA32 a.out support"
- depends on IA32_EMULATION
- help
- Support old a.out binaries in the 32bit emulation.
-
-config COMPAT
- bool
- depends on IA32_EMULATION
- default y
-
-config COMPAT_FOR_U64_ALIGNMENT
- def_bool COMPAT
-
-config SYSVIPC_COMPAT
- bool
- depends on COMPAT && SYSVIPC
- default y
-
-endmenu
-
-source "net/Kconfig"
-
-source drivers/Kconfig
-
-source "drivers/firmware/Kconfig"
-
-source fs/Kconfig
-
-source "kernel/Kconfig.instrumentation"
-
-source "arch/x86/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 3095973..116b03a 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -1,12 +1,16 @@
# Unified Makefile for i386 and x86_64
# select defconfig based on actual architecture
-KBUILD_DEFCONFIG := $(ARCH)_defconfig
+ifeq ($(ARCH),x86)
+ KBUILD_DEFCONFIG := i386_defconfig
+else
+ KBUILD_DEFCONFIG := $(ARCH)_defconfig
+endif
-# # No need to remake these files
+# No need to remake these files
$(srctree)/arch/x86/Makefile%: ;
-ifeq ($(ARCH),i386)
+ifeq ($(CONFIG_X86_32),y)
include $(srctree)/arch/x86/Makefile_32
else
include $(srctree)/arch/x86/Makefile_64
diff --git a/arch/x86/Makefile_32 b/arch/x86/Makefile_32
index 346ac07..50394da 100644
--- a/arch/x86/Makefile_32
+++ b/arch/x86/Makefile_32
@@ -160,7 +160,7 @@
$(Q)$(MAKE) $(clean)=arch/x86/boot
define archhelp
- echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
+ echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)'
echo ' install - Install kernel using'
echo ' (your) ~/bin/installkernel or'
echo ' (distribution) /sbin/installkernel or'
@@ -170,6 +170,6 @@
echo ' isoimage - Create a boot CD-ROM image'
endef
-CLEAN_FILES += arch/$(ARCH)/boot/fdimage \
- arch/$(ARCH)/boot/image.iso \
- arch/$(ARCH)/boot/mtools.conf
+CLEAN_FILES += arch/x86/boot/fdimage \
+ arch/x86/boot/image.iso \
+ arch/x86/boot/mtools.conf
diff --git a/arch/x86/Makefile_64 b/arch/x86/Makefile_64
index 57e714a..a804860 100644
--- a/arch/x86/Makefile_64
+++ b/arch/x86/Makefile_64
@@ -127,7 +127,7 @@
$(Q)$(MAKE) $(clean)=$(boot)
define archhelp
- echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
+ echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)'
echo ' install - Install kernel using'
echo ' (your) ~/bin/installkernel or'
echo ' (distribution) /sbin/installkernel or'
@@ -137,8 +137,8 @@
echo ' isoimage - Create a boot CD-ROM image'
endef
-CLEAN_FILES += arch/$(ARCH)/boot/fdimage \
- arch/$(ARCH)/boot/image.iso \
- arch/$(ARCH)/boot/mtools.conf
+CLEAN_FILES += arch/x86/boot/fdimage \
+ arch/x86/boot/image.iso \
+ arch/x86/boot/mtools.conf
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 89dbf97..7a3116c 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -49,10 +49,10 @@
# How to compile the 16-bit code. Note we always compile for -march=i386,
# that way we can complain to the user if the CPU is insufficient.
-cflags-i386 :=
-cflags-x86_64 := -m32
+cflags-$(CONFIG_X86_32) :=
+cflags-$(CONFIG_X86_64) := -m32
KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
- $(cflags-$(ARCH)) \
+ $(cflags-y) \
-Wall -Wstrict-prototypes \
-march=i386 -mregparm=3 \
-include $(srctree)/$(src)/code16gcc.h \
diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c
index e655a89..769065b 100644
--- a/arch/x86/boot/cpucheck.c
+++ b/arch/x86/boot/cpucheck.c
@@ -42,13 +42,7 @@
static u32 cpu_vendor[3];
static u32 err_flags[NCAPINTS];
-#ifdef CONFIG_X86_64
-static const int req_level = 64;
-#elif defined(CONFIG_X86_MINIMUM_CPU_FAMILY)
static const int req_level = CONFIG_X86_MINIMUM_CPU_FAMILY;
-#else
-static const int req_level = 3;
-#endif
static const u32 req_flags[NCAPINTS] =
{
diff --git a/arch/x86/kernel/Makefile_32 b/arch/x86/kernel/Makefile_32
index b9d67982..a7bc93c 100644
--- a/arch/x86/kernel/Makefile_32
+++ b/arch/x86/kernel/Makefile_32
@@ -3,6 +3,7 @@
#
extra-y := head_32.o init_task.o vmlinux.lds
+CPPFLAGS_vmlinux.lds += -Ui386
obj-y := process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
ptrace_32.o time_32.o ioport_32.o ldt_32.o setup_32.o i8259_32.o sys_i386_32.o \
@@ -60,7 +61,7 @@
cmd_syscall = $(CC) -m elf_i386 -nostdlib $(SYSCFLAGS_$(@F)) \
-Wl,-T,$(filter-out FORCE,$^) -o $@
-export CPPFLAGS_vsyscall_32.lds += -P -C -U$(ARCH)
+export CPPFLAGS_vsyscall_32.lds += -P -C -Ui386
vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \
$(call ld-option, -Wl$(comma)--hash-style=sysv)
diff --git a/arch/x86/kernel/Makefile_64 b/arch/x86/kernel/Makefile_64
index 24671c3..5a88890 100644
--- a/arch/x86/kernel/Makefile_64
+++ b/arch/x86/kernel/Makefile_64
@@ -3,7 +3,9 @@
#
extra-y := head_64.o head64.o init_task.o vmlinux.lds
+CPPFLAGS_vmlinux.lds += -Ux86_64
EXTRA_AFLAGS := -traditional
+
obj-y := process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
ptrace_64.o time_64.o ioport_64.o ldt_64.o setup_64.o i8259_64.o sys_x86_64.o \
x8664_ksyms_64.o i387_64.o syscall_64.o vsyscall_64.o \
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 289247d..0ca27c7 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -637,6 +637,38 @@
}
hpet_address = hpet_tbl->address.address;
+
+ /*
+ * Some broken BIOSes advertise HPET at 0x0. We really do not
+ * want to allocate a resource there.
+ */
+ if (!hpet_address) {
+ printk(KERN_WARNING PREFIX
+ "HPET id: %#x base: %#lx is invalid\n",
+ hpet_tbl->id, hpet_address);
+ return 0;
+ }
+#ifdef CONFIG_X86_64
+ /*
+ * Some even more broken BIOSes advertise HPET at
+ * 0xfed0000000000000 instead of 0xfed00000. Fix it up and add
+ * some noise:
+ */
+ if (hpet_address == 0xfed0000000000000UL) {
+ if (!hpet_force_user) {
+ printk(KERN_WARNING PREFIX "HPET id: %#x "
+ "base: 0xfed0000000000000 is bogus\n "
+ "try hpet=force on the kernel command line to "
+ "fix it up to 0xfed00000.\n", hpet_tbl->id);
+ hpet_address = 0;
+ return 0;
+ }
+ printk(KERN_WARNING PREFIX
+ "HPET id: %#x base: 0xfed0000000000000 fixed up "
+ "to 0xfed00000.\n", hpet_tbl->id);
+ hpet_address >>= 32;
+ }
+#endif
printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n",
hpet_tbl->id, hpet_address);
diff --git a/arch/x86/kernel/cpu/cpufreq/Kconfig_32 b/arch/x86/kernel/cpu/cpufreq/Kconfig
similarity index 77%
rename from arch/x86/kernel/cpu/cpufreq/Kconfig_32
rename to arch/x86/kernel/cpu/cpufreq/Kconfig
index d8c6f13..151eda0 100644
--- a/arch/x86/kernel/cpu/cpufreq/Kconfig_32
+++ b/arch/x86/kernel/cpu/cpufreq/Kconfig
@@ -19,6 +19,9 @@
Processor Performance States.
This driver also supports Intel Enhanced Speedstep.
+ To compile this driver as a module, choose M here: the
+ module will be called acpi-cpufreq.
+
For details, take a look at <file:Documentation/cpu-freq/>.
If in doubt, say N.
@@ -26,7 +29,7 @@
config ELAN_CPUFREQ
tristate "AMD Elan SC400 and SC410"
select CPU_FREQ_TABLE
- depends on X86_ELAN
+ depends on X86_32 && X86_ELAN
---help---
This adds the CPUFreq driver for AMD Elan SC400 and SC410
processors.
@@ -42,7 +45,7 @@
config SC520_CPUFREQ
tristate "AMD Elan SC520"
select CPU_FREQ_TABLE
- depends on X86_ELAN
+ depends on X86_32 && X86_ELAN
---help---
This adds the CPUFreq driver for AMD Elan SC520 processor.
@@ -54,6 +57,7 @@
config X86_POWERNOW_K6
tristate "AMD Mobile K6-2/K6-3 PowerNow!"
select CPU_FREQ_TABLE
+ depends on X86_32
help
This adds the CPUFreq driver for mobile AMD K6-2+ and mobile
AMD K6-3+ processors.
@@ -65,6 +69,7 @@
config X86_POWERNOW_K7
tristate "AMD Mobile Athlon/Duron PowerNow!"
select CPU_FREQ_TABLE
+ depends on X86_32
help
This adds the CPUFreq driver for mobile AMD K7 mobile processors.
@@ -76,23 +81,27 @@
bool
depends on X86_POWERNOW_K7 && ACPI_PROCESSOR
depends on !(X86_POWERNOW_K7 = y && ACPI_PROCESSOR = m)
+ depends on X86_32
default y
config X86_POWERNOW_K8
tristate "AMD Opteron/Athlon64 PowerNow!"
select CPU_FREQ_TABLE
- depends on EXPERIMENTAL
help
This adds the CPUFreq driver for mobile AMD Opteron/Athlon64 processors.
+ To compile this driver as a module, choose M here: the
+ module will be called powernow-k8.
+
For details, take a look at <file:Documentation/cpu-freq/>.
If in doubt, say N.
config X86_POWERNOW_K8_ACPI
- bool "ACPI Support"
- select ACPI_PROCESSOR
- depends on ACPI && X86_POWERNOW_K8
+ bool
+ prompt "ACPI Support" if X86_32
+ depends on ACPI && X86_POWERNOW_K8 && ACPI_PROCESSOR
+ depends on !(X86_POWERNOW_K8 = y && ACPI_PROCESSOR = m)
default y
help
This provides access to the K8s Processor Performance States via ACPI.
@@ -104,7 +113,7 @@
config X86_GX_SUSPMOD
tristate "Cyrix MediaGX/NatSemi Geode Suspend Modulation"
- depends on PCI
+ depends on X86_32 && PCI
help
This add the CPUFreq driver for NatSemi Geode processors which
support suspend modulation.
@@ -114,15 +123,20 @@
If in doubt, say N.
config X86_SPEEDSTEP_CENTRINO
- tristate "Intel Enhanced SpeedStep"
+ tristate "Intel Enhanced SpeedStep (deprecated)"
select CPU_FREQ_TABLE
- select X86_SPEEDSTEP_CENTRINO_TABLE
+ select X86_SPEEDSTEP_CENTRINO_TABLE if X86_32
+ depends on X86_32 || (X86_64 && ACPI_PROCESSOR)
help
+ This is deprecated and this functionality is now merged into
+ acpi_cpufreq (X86_ACPI_CPUFREQ). Use that driver instead of
+ speedstep_centrino.
This adds the CPUFreq driver for Enhanced SpeedStep enabled
- mobile CPUs. This means Intel Pentium M (Centrino) CPUs. However,
- you also need to say Y to "Use ACPI tables to decode..." below
- [which might imply enabling ACPI] if you want to use this driver
- on non-Banias CPUs.
+ mobile CPUs. This means Intel Pentium M (Centrino) CPUs
+ or 64bit enabled Intel Xeons.
+
+ To compile this driver as a module, choose M here: the
+ module will be called speedstep-centrino.
For details, take a look at <file:Documentation/cpu-freq/>.
@@ -130,7 +144,7 @@
config X86_SPEEDSTEP_CENTRINO_TABLE
bool "Built-in tables for Banias CPUs"
- depends on X86_SPEEDSTEP_CENTRINO
+ depends on X86_32 && X86_SPEEDSTEP_CENTRINO
default y
help
Use built-in tables for Banias CPUs if ACPI encoding
@@ -141,6 +155,7 @@
config X86_SPEEDSTEP_ICH
tristate "Intel Speedstep on ICH-M chipsets (ioport interface)"
select CPU_FREQ_TABLE
+ depends on X86_32
help
This adds the CPUFreq driver for certain mobile Intel Pentium III
(Coppermine), all mobile Intel Pentium III-M (Tualatin) and all
@@ -154,7 +169,7 @@
config X86_SPEEDSTEP_SMI
tristate "Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)"
select CPU_FREQ_TABLE
- depends on EXPERIMENTAL
+ depends on X86_32 && EXPERIMENTAL
help
This adds the CPUFreq driver for certain mobile Intel Pentium III
(Coppermine), all mobile Intel Pentium III-M (Tualatin)
@@ -169,15 +184,24 @@
select CPU_FREQ_TABLE
help
This adds the CPUFreq driver for Intel Pentium 4 / XEON
- processors.
+ processors. When enabled it will lower CPU temperature by skipping
+ clocks.
+
+ This driver should be only used in exceptional
+ circumstances when very low power is needed because it causes severe
+ slowdowns and noticeable latencies. Normally Speedstep should be used
+ instead.
+
+ To compile this driver as a module, choose M here: the
+ module will be called p4-clockmod.
For details, take a look at <file:Documentation/cpu-freq/>.
- If in doubt, say N.
+ Unless you are absolutely sure say N.
config X86_CPUFREQ_NFORCE2
tristate "nVidia nForce2 FSB changing"
- depends on EXPERIMENTAL
+ depends on X86_32 && EXPERIMENTAL
help
This adds the CPUFreq driver for FSB changing on nVidia nForce2
platforms.
@@ -188,6 +212,7 @@
config X86_LONGRUN
tristate "Transmeta LongRun"
+ depends on X86_32
help
This adds the CPUFreq driver for Transmeta Crusoe and Efficeon processors
which support LongRun.
@@ -199,7 +224,7 @@
config X86_LONGHAUL
tristate "VIA Cyrix III Longhaul"
select CPU_FREQ_TABLE
- depends on ACPI_PROCESSOR
+ depends on X86_32 && ACPI_PROCESSOR
help
This adds the CPUFreq driver for VIA Samuel/CyrixIII,
VIA Cyrix Samuel/C3, VIA Cyrix Ezra and VIA Cyrix Ezra-T
@@ -212,7 +237,7 @@
config X86_E_POWERSAVER
tristate "VIA C7 Enhanced PowerSaver (EXPERIMENTAL)"
select CPU_FREQ_TABLE
- depends on EXPERIMENTAL
+ depends on X86_32 && EXPERIMENTAL
help
This adds the CPUFreq driver for VIA C7 processors.
@@ -233,11 +258,11 @@
config X86_SPEEDSTEP_LIB
tristate
- default X86_SPEEDSTEP_ICH || X86_SPEEDSTEP_SMI || X86_P4_CLOCKMOD
+ default (X86_SPEEDSTEP_ICH || X86_SPEEDSTEP_SMI || X86_P4_CLOCKMOD)
config X86_SPEEDSTEP_RELAXED_CAP_CHECK
bool "Relaxed speedstep capability checks"
- depends on (X86_SPEEDSTEP_SMI || X86_SPEEDSTEP_ICH)
+ depends on X86_32 && (X86_SPEEDSTEP_SMI || X86_SPEEDSTEP_ICH)
help
Don't perform all checks for a speedstep capable system which would
normally be done. Some ancient or strange systems, though speedstep
diff --git a/arch/x86/kernel/cpu/cpufreq/Kconfig_64 b/arch/x86/kernel/cpu/cpufreq/Kconfig_64
deleted file mode 100644
index 9c9699f..0000000
--- a/arch/x86/kernel/cpu/cpufreq/Kconfig_64
+++ /dev/null
@@ -1,108 +0,0 @@
-#
-# CPU Frequency scaling
-#
-
-menu "CPU Frequency scaling"
-
-source "drivers/cpufreq/Kconfig"
-
-if CPU_FREQ
-
-comment "CPUFreq processor drivers"
-
-config X86_POWERNOW_K8
- tristate "AMD Opteron/Athlon64 PowerNow!"
- select CPU_FREQ_TABLE
- help
- This adds the CPUFreq driver for mobile AMD Opteron/Athlon64 processors.
-
- To compile this driver as a module, choose M here: the
- module will be called powernow-k8.
-
- For details, take a look at <file:Documentation/cpu-freq/>.
-
- If in doubt, say N.
-
-config X86_POWERNOW_K8_ACPI
- bool
- depends on X86_POWERNOW_K8 && ACPI_PROCESSOR
- depends on !(X86_POWERNOW_K8 = y && ACPI_PROCESSOR = m)
- default y
-
-config X86_SPEEDSTEP_CENTRINO
- tristate "Intel Enhanced SpeedStep (deprecated)"
- select CPU_FREQ_TABLE
- depends on ACPI_PROCESSOR
- help
- This is deprecated and this functionality is now merged into
- acpi_cpufreq (X86_ACPI_CPUFREQ). Use that driver instead of
- speedstep_centrino.
- This adds the CPUFreq driver for Enhanced SpeedStep enabled
- mobile CPUs. This means Intel Pentium M (Centrino) CPUs
- or 64bit enabled Intel Xeons.
-
- To compile this driver as a module, choose M here: the
- module will be called speedstep-centrino.
-
- For details, take a look at <file:Documentation/cpu-freq/>.
-
- If in doubt, say N.
-
-config X86_ACPI_CPUFREQ
- tristate "ACPI Processor P-States driver"
- select CPU_FREQ_TABLE
- depends on ACPI_PROCESSOR
- help
- This driver adds a CPUFreq driver which utilizes the ACPI
- Processor Performance States.
- This driver also supports Intel Enhanced Speedstep.
-
- To compile this driver as a module, choose M here: the
- module will be called acpi-cpufreq.
-
- For details, take a look at <file:Documentation/cpu-freq/>.
-
- If in doubt, say N.
-
-comment "shared options"
-
-config X86_ACPI_CPUFREQ_PROC_INTF
- bool "/proc/acpi/processor/../performance interface (deprecated)"
- depends on PROC_FS
- depends on X86_ACPI_CPUFREQ || X86_POWERNOW_K8_ACPI
- help
- This enables the deprecated /proc/acpi/processor/../performance
- interface. While it is helpful for debugging, the generic,
- cross-architecture cpufreq interfaces should be used.
-
- If in doubt, say N.
-
-config X86_P4_CLOCKMOD
- tristate "Intel Pentium 4 clock modulation"
- depends on EMBEDDED
- select CPU_FREQ_TABLE
- help
- This adds the clock modulation driver for Intel Pentium 4 / XEON
- processors. When enabled it will lower CPU temperature by skipping
- clocks.
-
- This driver should be only used in exceptional
- circumstances when very low power is needed because it causes severe
- slowdowns and noticeable latencies. Normally Speedstep should be used
- instead.
-
- To compile this driver as a module, choose M here: the
- module will be called p4-clockmod.
-
- For details, take a look at <file:Documentation/cpu-freq/>.
-
- Unless you are absolutely sure say N.
-
-
-config X86_SPEEDSTEP_LIB
- tristate
- default X86_P4_CLOCKMOD
-
-endif
-
-endmenu
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
index 9c36a53..99e1ef9 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c
@@ -46,7 +46,7 @@
#define PFX "powernow-k8: "
#define BFX PFX "BIOS error: "
-#define VERSION "version 2.00.00"
+#define VERSION "version 2.20.00"
#include "powernow-k8.h"
/* serialize freq changes */
@@ -73,33 +73,11 @@
return 1000 * find_freq_from_fid(fid);
}
-/* Return a frequency in MHz, given an input fid and did */
-static u32 find_freq_from_fiddid(u32 fid, u32 did)
+static u32 find_khz_freq_from_pstate(struct cpufreq_frequency_table *data, u32 pstate)
{
- if (current_cpu_data.x86 == 0x10)
- return 100 * (fid + 0x10) >> did;
- else
- return 100 * (fid + 0x8) >> did;
+ return data[pstate].frequency;
}
-static u32 find_khz_freq_from_fiddid(u32 fid, u32 did)
-{
- return 1000 * find_freq_from_fiddid(fid, did);
-}
-
-static u32 find_fid_from_pstate(u32 pstate)
-{
- u32 hi, lo;
- rdmsr(MSR_PSTATE_DEF_BASE + pstate, lo, hi);
- return lo & HW_PSTATE_FID_MASK;
-}
-
-static u32 find_did_from_pstate(u32 pstate)
-{
- u32 hi, lo;
- rdmsr(MSR_PSTATE_DEF_BASE + pstate, lo, hi);
- return (lo & HW_PSTATE_DID_MASK) >> HW_PSTATE_DID_SHIFT;
-}
/* Return the vco fid for an input fid
*
@@ -142,9 +120,7 @@
if (cpu_family == CPU_HW_PSTATE) {
rdmsr(MSR_PSTATE_STATUS, lo, hi);
i = lo & HW_PSTATE_MASK;
- rdmsr(MSR_PSTATE_DEF_BASE + i, lo, hi);
- data->currfid = lo & HW_PSTATE_FID_MASK;
- data->currdid = (lo & HW_PSTATE_DID_MASK) >> HW_PSTATE_DID_SHIFT;
+ data->currpstate = i;
return 0;
}
do {
@@ -295,7 +271,7 @@
static int transition_pstate(struct powernow_k8_data *data, u32 pstate)
{
wrmsr(MSR_PSTATE_CTRL, pstate, 0);
- data->currfid = find_fid_from_pstate(pstate);
+ data->currpstate = pstate;
return 0;
}
@@ -845,17 +821,20 @@
static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpufreq_frequency_table *powernow_table)
{
int i;
+ u32 hi = 0, lo = 0;
+ rdmsr(MSR_PSTATE_CUR_LIMIT, hi, lo);
+ data->max_hw_pstate = (hi & HW_PSTATE_MAX_MASK) >> HW_PSTATE_MAX_SHIFT;
for (i = 0; i < data->acpi_data.state_count; i++) {
u32 index;
u32 hi = 0, lo = 0;
- u32 fid;
- u32 did;
index = data->acpi_data.states[i].control & HW_PSTATE_MASK;
- if (index > MAX_HW_PSTATE) {
+ if (index > data->max_hw_pstate) {
printk(KERN_ERR PFX "invalid pstate %d - bad value %d.\n", i, index);
printk(KERN_ERR PFX "Please report to BIOS manufacturer\n");
+ powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+ continue;
}
rdmsr(MSR_PSTATE_DEF_BASE + index, lo, hi);
if (!(hi & HW_PSTATE_VALID_MASK)) {
@@ -864,22 +843,9 @@
continue;
}
- fid = lo & HW_PSTATE_FID_MASK;
- did = (lo & HW_PSTATE_DID_MASK) >> HW_PSTATE_DID_SHIFT;
+ powernow_table[i].index = index;
- dprintk(" %d : fid 0x%x, did 0x%x\n", index, fid, did);
-
- powernow_table[i].index = index | (fid << HW_FID_INDEX_SHIFT) | (did << HW_DID_INDEX_SHIFT);
-
- powernow_table[i].frequency = find_khz_freq_from_fiddid(fid, did);
-
- if (powernow_table[i].frequency != (data->acpi_data.states[i].core_frequency * 1000)) {
- printk(KERN_INFO PFX "invalid freq entries %u kHz vs. %u kHz\n",
- powernow_table[i].frequency,
- (unsigned int) (data->acpi_data.states[i].core_frequency * 1000));
- powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID;
- continue;
- }
+ powernow_table[i].frequency = data->acpi_data.states[i].core_frequency * 1000;
}
return 0;
}
@@ -1020,22 +986,18 @@
/* Take a frequency, and issue the hardware pstate transition command */
static int transition_frequency_pstate(struct powernow_k8_data *data, unsigned int index)
{
- u32 fid = 0;
- u32 did = 0;
u32 pstate = 0;
int res, i;
struct cpufreq_freqs freqs;
dprintk("cpu %d transition to index %u\n", smp_processor_id(), index);
- /* get fid did for hardware pstate transition */
+ /* get MSR index for hardware pstate transition */
pstate = index & HW_PSTATE_MASK;
- if (pstate > MAX_HW_PSTATE)
+ if (pstate > data->max_hw_pstate)
return 0;
- fid = (index & HW_FID_INDEX_MASK) >> HW_FID_INDEX_SHIFT;
- did = (index & HW_DID_INDEX_MASK) >> HW_DID_INDEX_SHIFT;
- freqs.old = find_khz_freq_from_fiddid(data->currfid, data->currdid);
- freqs.new = find_khz_freq_from_fiddid(fid, did);
+ freqs.old = find_khz_freq_from_pstate(data->powernow_table, data->currpstate);
+ freqs.new = find_khz_freq_from_pstate(data->powernow_table, pstate);
for_each_cpu_mask(i, *(data->available_cores)) {
freqs.cpu = i;
@@ -1043,9 +1005,7 @@
}
res = transition_pstate(data, pstate);
- data->currfid = find_fid_from_pstate(pstate);
- data->currdid = find_did_from_pstate(pstate);
- freqs.new = find_khz_freq_from_fiddid(data->currfid, data->currdid);
+ freqs.new = find_khz_freq_from_pstate(data->powernow_table, pstate);
for_each_cpu_mask(i, *(data->available_cores)) {
freqs.cpu = i;
@@ -1090,10 +1050,7 @@
if (query_current_values_with_pending_wait(data))
goto err_out;
- if (cpu_family == CPU_HW_PSTATE)
- dprintk("targ: curr fid 0x%x, did 0x%x\n",
- data->currfid, data->currdid);
- else {
+ if (cpu_family != CPU_HW_PSTATE) {
dprintk("targ: curr fid 0x%x, vid 0x%x\n",
data->currfid, data->currvid);
@@ -1124,7 +1081,7 @@
mutex_unlock(&fidvid_mutex);
if (cpu_family == CPU_HW_PSTATE)
- pol->cur = find_khz_freq_from_fiddid(data->currfid, data->currdid);
+ pol->cur = find_khz_freq_from_pstate(data->powernow_table, newstate);
else
pol->cur = find_khz_freq_from_fid(data->currfid);
ret = 0;
@@ -1223,7 +1180,7 @@
+ (3 * (1 << data->irt) * 10)) * 1000;
if (cpu_family == CPU_HW_PSTATE)
- pol->cur = find_khz_freq_from_fiddid(data->currfid, data->currdid);
+ pol->cur = find_khz_freq_from_pstate(data->powernow_table, data->currpstate);
else
pol->cur = find_khz_freq_from_fid(data->currfid);
dprintk("policy current frequency %d kHz\n", pol->cur);
@@ -1240,8 +1197,7 @@
cpufreq_frequency_table_get_attr(data->powernow_table, pol->cpu);
if (cpu_family == CPU_HW_PSTATE)
- dprintk("cpu_init done, current fid 0x%x, did 0x%x\n",
- data->currfid, data->currdid);
+ dprintk("cpu_init done, current pstate 0x%x\n", data->currpstate);
else
dprintk("cpu_init done, current fid 0x%x, vid 0x%x\n",
data->currfid, data->currvid);
@@ -1297,7 +1253,7 @@
goto out;
if (cpu_family == CPU_HW_PSTATE)
- khz = find_khz_freq_from_fiddid(data->currfid, data->currdid);
+ khz = find_khz_freq_from_pstate(data->powernow_table, data->currpstate);
else
khz = find_khz_freq_from_fid(data->currfid);
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
index 7c4f6e0..afd2b52 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h
@@ -10,6 +10,7 @@
u32 numps; /* number of p-states */
u32 batps; /* number of p-states supported on battery */
+ u32 max_hw_pstate; /* maximum legal hardware pstate */
/* these values are constant when the PSB is used to determine
* vid/fid pairings, but are modified during the ->target() call
@@ -21,8 +22,8 @@
u32 plllock; /* pll lock time, units 1 us */
u32 exttype; /* extended interface = 1 */
- /* keep track of the current fid / vid or did */
- u32 currvid, currfid, currdid;
+ /* keep track of the current fid / vid or pstate */
+ u32 currvid, currfid, currpstate;
/* the powernow_table includes all frequency and vid/fid pairings:
* fid are the lower 8 bits of the index, vid are the upper 8 bits.
@@ -87,23 +88,14 @@
/* Hardware Pstate _PSS and MSR definitions */
#define USE_HW_PSTATE 0x00000080
-#define HW_PSTATE_FID_MASK 0x0000003f
-#define HW_PSTATE_DID_MASK 0x000001c0
-#define HW_PSTATE_DID_SHIFT 6
#define HW_PSTATE_MASK 0x00000007
#define HW_PSTATE_VALID_MASK 0x80000000
-#define HW_FID_INDEX_SHIFT 8
-#define HW_FID_INDEX_MASK 0x0000ff00
-#define HW_DID_INDEX_SHIFT 16
-#define HW_DID_INDEX_MASK 0x00ff0000
-#define HW_WATTS_MASK 0xff
-#define HW_PWR_DVR_MASK 0x300
-#define HW_PWR_DVR_SHIFT 8
-#define HW_PWR_MAX_MULT 3
-#define MAX_HW_PSTATE 8 /* hw pstate supports up to 8 */
+#define HW_PSTATE_MAX_MASK 0x000000f0
+#define HW_PSTATE_MAX_SHIFT 4
#define MSR_PSTATE_DEF_BASE 0xc0010064 /* base of Pstate MSRs */
#define MSR_PSTATE_STATUS 0xc0010063 /* Pstate Status MSR */
#define MSR_PSTATE_CTRL 0xc0010062 /* Pstate control MSR */
+#define MSR_PSTATE_CUR_LIMIT 0xc0010061 /* pstate current limit MSR */
/* define the two driver architectures */
#define CPU_OPTERON 0
diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index b9f802e..4b21d29 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -802,13 +802,15 @@
NULL
};
+static cpumask_t mce_device_initialized = CPU_MASK_NONE;
+
/* Per cpu sysdev init. All of the cpus still share the same ctl bank */
static __cpuinit int mce_create_device(unsigned int cpu)
{
int err;
int i;
- if (!mce_available(&cpu_data(cpu)))
+ if (!mce_available(&boot_cpu_data))
return -EIO;
memset(&per_cpu(device_mce, cpu).kobj, 0, sizeof(struct kobject));
@@ -825,6 +827,7 @@
if (err)
goto error;
}
+ cpu_set(cpu, mce_device_initialized);
return 0;
error:
@@ -841,10 +844,14 @@
{
int i;
+ if (!cpu_isset(cpu, mce_device_initialized))
+ return;
+
for (i = 0; mce_attributes[i]; i++)
sysdev_remove_file(&per_cpu(device_mce,cpu),
mce_attributes[i]);
sysdev_unregister(&per_cpu(device_mce,cpu));
+ cpu_clear(cpu, mce_device_initialized);
}
/* Get notified when a cpu comes on/off. Be hotplug friendly. */
@@ -852,21 +859,18 @@
mce_cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
{
unsigned int cpu = (unsigned long)hcpu;
- int err = 0;
switch (action) {
- case CPU_UP_PREPARE:
- case CPU_UP_PREPARE_FROZEN:
- err = mce_create_device(cpu);
+ case CPU_ONLINE:
+ case CPU_ONLINE_FROZEN:
+ mce_create_device(cpu);
break;
- case CPU_UP_CANCELED:
- case CPU_UP_CANCELED_FROZEN:
case CPU_DEAD:
case CPU_DEAD_FROZEN:
mce_remove_device(cpu);
break;
}
- return err ? NOTIFY_BAD : NOTIFY_OK;
+ return NOTIFY_OK;
}
static struct notifier_block mce_cpu_notifier = {
diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c
index 066f8c6..3900e46 100644
--- a/arch/x86/kernel/cpu/proc.c
+++ b/arch/x86/kernel/cpu/proc.c
@@ -89,8 +89,6 @@
int fpu_exception;
#ifdef CONFIG_SMP
- if (!cpu_online(n))
- return 0;
n = c->cpu_index;
#endif
seq_printf(m, "processor\t: %d\n"
@@ -177,14 +175,14 @@
static void *c_start(struct seq_file *m, loff_t *pos)
{
if (*pos == 0) /* just in case, cpu 0 is not the first */
- *pos = first_cpu(cpu_possible_map);
- if ((*pos) < NR_CPUS && cpu_possible(*pos))
+ *pos = first_cpu(cpu_online_map);
+ if ((*pos) < NR_CPUS && cpu_online(*pos))
return &cpu_data(*pos);
return NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
- *pos = next_cpu(*pos, cpu_possible_map);
+ *pos = next_cpu(*pos, cpu_online_map);
return c_start(m, pos);
}
static void c_stop(struct seq_file *m, void *v)
diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c
index 1a07bbe..f452726 100644
--- a/arch/x86/kernel/reboot_fixups_32.c
+++ b/arch/x86/kernel/reboot_fixups_32.c
@@ -39,6 +39,7 @@
static struct device_fixup fixups_table[] = {
{ PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, cs5530a_warm_reset },
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, cs5536_warm_reset },
+{ PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SC1100_BRIDGE, cs5530a_warm_reset },
};
/*
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 238633d..30d94d1 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -892,7 +892,6 @@
#ifdef CONFIG_SMP
c->phys_proc_id = (cpuid_ebx(1) >> 24) & 0xff;
- c->cpu_index = 0;
#endif
}
@@ -1078,8 +1077,6 @@
#ifdef CONFIG_SMP
- if (!cpu_online(c->cpu_index))
- return 0;
cpu = c->cpu_index;
#endif
@@ -1171,15 +1168,15 @@
static void *c_start(struct seq_file *m, loff_t *pos)
{
if (*pos == 0) /* just in case, cpu 0 is not the first */
- *pos = first_cpu(cpu_possible_map);
- if ((*pos) < NR_CPUS && cpu_possible(*pos))
+ *pos = first_cpu(cpu_online_map);
+ if ((*pos) < NR_CPUS && cpu_online(*pos))
return &cpu_data(*pos);
return NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
- *pos = next_cpu(*pos, cpu_possible_map);
+ *pos = next_cpu(*pos, cpu_online_map);
return c_start(m, pos);
}
diff --git a/arch/x86/kernel/time_64.c b/arch/x86/kernel/time_64.c
index c821edc..368b194 100644
--- a/arch/x86/kernel/time_64.c
+++ b/arch/x86/kernel/time_64.c
@@ -82,18 +82,15 @@
int retval = 0;
int real_seconds, real_minutes, cmos_minutes;
unsigned char control, freq_select;
+ unsigned long flags;
/*
- * IRQs are disabled when we're called from the timer interrupt,
- * no need for spin_lock_irqsave()
+ * set_rtc_mmss is called when irqs are enabled, so disable irqs here
*/
-
- spin_lock(&rtc_lock);
-
+ spin_lock_irqsave(&rtc_lock, flags);
/*
* Tell the clock it's being set and stop it.
*/
-
control = CMOS_READ(RTC_CONTROL);
CMOS_WRITE(control | RTC_SET, RTC_CONTROL);
@@ -138,7 +135,7 @@
CMOS_WRITE(control, RTC_CONTROL);
CMOS_WRITE(freq_select, RTC_FREQ_SELECT);
- spin_unlock(&rtc_lock);
+ spin_unlock_irqrestore(&rtc_lock, flags);
return retval;
}
@@ -164,21 +161,27 @@
unsigned century = 0;
spin_lock_irqsave(&rtc_lock, flags);
+ /*
+ * if UIP is clear, then we have >= 244 microseconds before RTC
+ * registers will be updated. Spec sheet says that this is the
+ * reliable way to read RTC - registers invalid (off bus) during update
+ */
+ while ((CMOS_READ(RTC_FREQ_SELECT) & RTC_UIP))
+ cpu_relax();
- do {
- sec = CMOS_READ(RTC_SECONDS);
- min = CMOS_READ(RTC_MINUTES);
- hour = CMOS_READ(RTC_HOURS);
- day = CMOS_READ(RTC_DAY_OF_MONTH);
- mon = CMOS_READ(RTC_MONTH);
- year = CMOS_READ(RTC_YEAR);
+
+ /* now read all RTC registers while stable with interrupts disabled */
+ sec = CMOS_READ(RTC_SECONDS);
+ min = CMOS_READ(RTC_MINUTES);
+ hour = CMOS_READ(RTC_HOURS);
+ day = CMOS_READ(RTC_DAY_OF_MONTH);
+ mon = CMOS_READ(RTC_MONTH);
+ year = CMOS_READ(RTC_YEAR);
#ifdef CONFIG_ACPI
- if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
- acpi_gbl_FADT.century)
- century = CMOS_READ(acpi_gbl_FADT.century);
+ if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
+ acpi_gbl_FADT.century)
+ century = CMOS_READ(acpi_gbl_FADT.century);
#endif
- } while (sec != CMOS_READ(RTC_SECONDS));
-
spin_unlock_irqrestore(&rtc_lock, flags);
/*
diff --git a/arch/x86/lib/delay_32.c b/arch/x86/lib/delay_32.c
index 952e7a8..aad9d95 100644
--- a/arch/x86/lib/delay_32.c
+++ b/arch/x86/lib/delay_32.c
@@ -12,6 +12,7 @@
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/preempt.h>
#include <linux/delay.h>
#include <asm/processor.h>
@@ -42,11 +43,13 @@
{
unsigned long bclock, now;
+ preempt_disable(); /* TSC's are per-cpu */
rdtscl(bclock);
do {
rep_nop();
rdtscl(now);
} while ((now-bclock) < loops);
+ preempt_enable();
}
/*
diff --git a/arch/x86/lib/delay_64.c b/arch/x86/lib/delay_64.c
index 0ebbfb9..45cdd3f 100644
--- a/arch/x86/lib/delay_64.c
+++ b/arch/x86/lib/delay_64.c
@@ -10,7 +10,9 @@
#include <linux/module.h>
#include <linux/sched.h>
+#include <linux/preempt.h>
#include <linux/delay.h>
+
#include <asm/delay.h>
#include <asm/msr.h>
@@ -27,14 +29,15 @@
void __delay(unsigned long loops)
{
unsigned bclock, now;
-
+
+ preempt_disable(); /* TSC's are pre-cpu */
rdtscl(bclock);
- do
- {
+ do {
rep_nop();
rdtscl(now);
}
- while((now-bclock) < loops);
+ while ((now-bclock) < loops);
+ preempt_enable();
}
EXPORT_SYMBOL(__delay);
diff --git a/arch/x86/mach-voyager/voyager_cat.c b/arch/x86/mach-voyager/voyager_cat.c
index 26a2d4c..2132ca6 100644
--- a/arch/x86/mach-voyager/voyager_cat.c
+++ b/arch/x86/mach-voyager/voyager_cat.c
@@ -568,7 +568,7 @@
* boot cpu *after* all memory initialisation has been done (so we can
* use kmalloc) but before smp initialisation, so we can probe the SMP
* configuration and pick up necessary information. */
-void
+void __init
voyager_cat_init(void)
{
voyager_module_t **modpp = &voyager_initial_module;
diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c
index 6937143..88124dd 100644
--- a/arch/x86/mach-voyager/voyager_smp.c
+++ b/arch/x86/mach-voyager/voyager_smp.c
@@ -1900,7 +1900,7 @@
smp_boot_cpus();
}
-static void __devinit voyager_smp_prepare_boot_cpu(void)
+static void __cpuinit voyager_smp_prepare_boot_cpu(void)
{
init_gdt(smp_processor_id());
switch_to_new_gdt();
@@ -1911,7 +1911,7 @@
cpu_set(smp_processor_id(), cpu_present_map);
}
-static int __devinit
+static int __cpuinit
voyager_cpu_up(unsigned int cpu)
{
/* This only works at boot for x86. See "rewrite" above. */
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 2d88f7c..7e35078 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -77,6 +77,9 @@
struct acpi_resource_address64 addr;
acpi_status status;
+ if (info->res_num >= PCI_BUS_NUM_RESOURCES)
+ return AE_OK;
+
status = resource_to_addr(acpi_res, &addr);
if (ACPI_SUCCESS(status))
info->res_num++;
@@ -93,6 +96,9 @@
unsigned long flags;
struct resource *root;
+ if (info->res_num >= PCI_BUS_NUM_RESOURCES)
+ return AE_OK;
+
status = resource_to_addr(acpi_res, &addr);
if (!ACPI_SUCCESS(status))
return AE_OK;
diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
index 7a2ba45..e7bff0f 100644
--- a/arch/x86/vdso/Makefile
+++ b/arch/x86/vdso/Makefile
@@ -20,7 +20,7 @@
cmd_syscall = $(CC) -m elf_x86_64 -nostdlib $(SYSCFLAGS_$(@F)) \
-Wl,-T,$(filter-out FORCE,$^) -o $@
-export CPPFLAGS_vdso.lds += -P -C -U$(ARCH)
+export CPPFLAGS_vdso.lds += -P -C
vdso-flags = -fPIC -shared -Wl,-soname=linux-vdso.so.1 \
$(call ld-option, -Wl$(comma)--hash-style=sysv) \
diff --git a/arch/x86/vdso/vgetcpu.c b/arch/x86/vdso/vgetcpu.c
index 91f6e85..3b1ae1a 100644
--- a/arch/x86/vdso/vgetcpu.c
+++ b/arch/x86/vdso/vgetcpu.c
@@ -13,32 +13,17 @@
#include <asm/vgtod.h>
#include "vextern.h"
-long __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache)
+long __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
{
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->blob[0] == (j = *vdso_jiffies)) {
- p = tcache->blob[1];
- } else if (*vdso_vgetcpu_mode == VGETCPU_RDTSCP) {
+ if (*vdso_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->blob[0] = j;
- tcache->blob[1] = p;
- }
if (cpu)
*cpu = p & 0xfff;
if (node)
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index ce9dead..087a702 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -50,6 +50,7 @@
config ACPI_PROCFS
bool "Deprecated /proc/acpi files"
depends on PROC_FS
+ default y
---help---
For backwards compatibility, this option allows
deprecated /proc/acpi/ files to exist, even when
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index e03de37..30238f6 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -27,8 +27,10 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
+#ifdef CONFIG_ACPI_PROCFS
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#endif
#include <linux/power_supply.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
@@ -49,12 +51,15 @@
MODULE_DESCRIPTION("ACPI AC Adapter Driver");
MODULE_LICENSE("GPL");
+#ifdef CONFIG_ACPI_PROCFS
extern struct proc_dir_entry *acpi_lock_ac_dir(void);
extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
+static int acpi_ac_open_fs(struct inode *inode, struct file *file);
+#endif
static int acpi_ac_add(struct acpi_device *device);
static int acpi_ac_remove(struct acpi_device *device, int type);
-static int acpi_ac_open_fs(struct inode *inode, struct file *file);
+static int acpi_ac_resume(struct acpi_device *device);
const static struct acpi_device_id ac_device_ids[] = {
{"ACPI0003", 0},
@@ -69,6 +74,7 @@
.ops = {
.add = acpi_ac_add,
.remove = acpi_ac_remove,
+ .resume = acpi_ac_resume,
},
};
@@ -80,12 +86,15 @@
#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger);
+#ifdef CONFIG_ACPI_PROCFS
static const struct file_operations acpi_ac_fops = {
.open = acpi_ac_open_fs,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
+#endif
+
static int get_ac_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
@@ -127,6 +136,7 @@
return 0;
}
+#ifdef CONFIG_ACPI_PROCFS
/* --------------------------------------------------------------------------
FS Interface (/proc)
-------------------------------------------------------------------------- */
@@ -206,6 +216,7 @@
return 0;
}
+#endif
/* --------------------------------------------------------------------------
Driver Model
@@ -264,7 +275,9 @@
if (result)
goto end;
+#ifdef CONFIG_ACPI_PROCFS
result = acpi_ac_add_fs(device);
+#endif
if (result)
goto end;
ac->charger.name = acpi_device_bid(device);
@@ -287,13 +300,30 @@
end:
if (result) {
+#ifdef CONFIG_ACPI_PROCFS
acpi_ac_remove_fs(device);
+#endif
kfree(ac);
}
return result;
}
+static int acpi_ac_resume(struct acpi_device *device)
+{
+ struct acpi_ac *ac;
+ unsigned old_state;
+ if (!device || !acpi_driver_data(device))
+ return -EINVAL;
+ ac = acpi_driver_data(device);
+ old_state = ac->state;
+ if (acpi_ac_get_state(ac))
+ return 0;
+ if (old_state != ac->state)
+ kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
+ return 0;
+}
+
static int acpi_ac_remove(struct acpi_device *device, int type)
{
acpi_status status = AE_OK;
@@ -309,7 +339,9 @@
ACPI_ALL_NOTIFY, acpi_ac_notify);
if (ac->charger.dev)
power_supply_unregister(&ac->charger);
+#ifdef CONFIG_ACPI_PROCFS
acpi_ac_remove_fs(device);
+#endif
kfree(ac);
@@ -323,13 +355,17 @@
if (acpi_disabled)
return -ENODEV;
+#ifdef CONFIG_ACPI_PROCFS
acpi_ac_dir = acpi_lock_ac_dir();
if (!acpi_ac_dir)
return -ENODEV;
+#endif
result = acpi_bus_register_driver(&acpi_ac_driver);
if (result < 0) {
+#ifdef CONFIG_ACPI_PROCFS
acpi_unlock_ac_dir(acpi_ac_dir);
+#endif
return -ENODEV;
}
@@ -341,7 +377,9 @@
acpi_bus_unregister_driver(&acpi_ac_driver);
+#ifdef CONFIG_ACPI_PROCFS
acpi_unlock_ac_dir(acpi_ac_dir);
+#endif
return;
}
diff --git a/drivers/acpi/toshiba_acpi.c b/drivers/acpi/toshiba_acpi.c
index a736ef7..9e8c20c 100644
--- a/drivers/acpi/toshiba_acpi.c
+++ b/drivers/acpi/toshiba_acpi.c
@@ -591,9 +591,12 @@
NULL,
&toshiba_backlight_data);
if (IS_ERR(toshiba_backlight_device)) {
+ int ret = PTR_ERR(toshiba_backlight_device);
+
printk(KERN_ERR "Could not register toshiba backlight device\n");
toshiba_backlight_device = NULL;
toshiba_acpi_exit();
+ return ret;
}
toshiba_backlight_device->props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index ceffa60..e7fe6ca 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -488,13 +488,11 @@
return r;
}
-#define DBMSG(msg) ((verbose>1)?(msg):NULL)
-
static void pf_lock(struct pf_unit *pf, int func)
{
char lo_cmd[12] = { ATAPI_LOCK, pf->lun << 5, 0, 0, func, 0, 0, 0, 0, 0, 0, 0 };
- pf_atapi(pf, lo_cmd, 0, pf_scratch, func ? "unlock" : "lock");
+ pf_atapi(pf, lo_cmd, 0, pf_scratch, func ? "lock" : "unlock");
}
static void pf_eject(struct pf_unit *pf)
@@ -555,7 +553,7 @@
{ ATAPI_MODE_SENSE, pf->lun << 5, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0 };
char buf[8];
- pf_atapi(pf, ms_cmd, 8, buf, DBMSG("mode sense"));
+ pf_atapi(pf, ms_cmd, 8, buf, "mode sense");
pf->media_status = PF_RW;
if (buf[3] & 0x80)
pf->media_status = PF_RO;
@@ -591,7 +589,7 @@
char buf[8];
int bs;
- if (pf_atapi(pf, rc_cmd, 8, buf, DBMSG("get capacity"))) {
+ if (pf_atapi(pf, rc_cmd, 8, buf, "get capacity")) {
pf->media_status = PF_NM;
return;
}
@@ -804,13 +802,18 @@
pf_buf += 512;
pf_block++;
if (!pf_run)
- return 0;
- if (!pf_count)
return 1;
- spin_lock_irqsave(&pf_spin_lock, saved_flags);
- pf_end_request(1);
- spin_unlock_irqrestore(&pf_spin_lock, saved_flags);
- return 1;
+ if (!pf_count) {
+ spin_lock_irqsave(&pf_spin_lock, saved_flags);
+ pf_end_request(1);
+ pf_req = elv_next_request(pf_queue);
+ spin_unlock_irqrestore(&pf_spin_lock, saved_flags);
+ if (!pf_req)
+ return 1;
+ pf_count = pf_req->current_nr_sectors;
+ pf_buf = pf_req->buffer;
+ }
+ return 0;
}
static inline void next_request(int success)
diff --git a/drivers/block/rd.c b/drivers/block/rd.c
index 47f8ac6..82f4eec 100644
--- a/drivers/block/rd.c
+++ b/drivers/block/rd.c
@@ -189,6 +189,18 @@
return 0;
}
+/*
+ * releasepage is called by pagevec_strip/try_to_release_page if
+ * buffers_heads_over_limit is true. Without a releasepage function
+ * try_to_free_buffers is called instead. That can unset the dirty
+ * bit of our ram disk pages, which will be eventually freed, even
+ * if the page is still in use.
+ */
+static int ramdisk_releasepage(struct page *page, gfp_t dummy)
+{
+ return 0;
+}
+
static const struct address_space_operations ramdisk_aops = {
.readpage = ramdisk_readpage,
.prepare_write = ramdisk_prepare_write,
@@ -196,6 +208,7 @@
.writepage = ramdisk_writepage,
.set_page_dirty = ramdisk_set_page_dirty,
.writepages = ramdisk_writepages,
+ .releasepage = ramdisk_releasepage,
};
static int rd_blkdev_pagecache_IO(int rw, struct bio_vec *vec, sector_t sector,
diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index cc5d777..02518da 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -47,7 +47,7 @@
/* #define ATR_CSUM */
#ifdef PCMCIA_DEBUG
-#define reader_to_dev(x) (&handle_to_dev(x->p_dev->handle))
+#define reader_to_dev(x) (&handle_to_dev(x->p_dev))
static int pc_debug = PCMCIA_DEBUG;
module_param(pc_debug, int, 0600);
#define DEBUGP(n, rdr, x, args...) do { \
diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c
index a0b9c87..5f291bf 100644
--- a/drivers/char/pcmcia/cm4040_cs.c
+++ b/drivers/char/pcmcia/cm4040_cs.c
@@ -41,7 +41,7 @@
#ifdef PCMCIA_DEBUG
-#define reader_to_dev(x) (&handle_to_dev(x->p_dev->handle))
+#define reader_to_dev(x) (&handle_to_dev(x->p_dev))
static int pc_debug = PCMCIA_DEBUG;
module_param(pc_debug, int, 0600);
#define DEBUGP(n, rdr, x, args...) do { \
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 1756b1f..5fee056 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1494,7 +1494,7 @@
seq = twothirdsMD4Transform((const __u32 *)daddr, hash) & HASH_MASK;
seq += keyptr->count;
- seq += ktime_get_real().tv64;
+ seq += ktime_to_ns(ktime_get_real());
return seq;
}
@@ -1556,7 +1556,7 @@
* overlaps less than one time per MSL (2 minutes).
* Choosing a clock of 64 ns period is OK. (period of 274 s)
*/
- seq += ktime_get_real().tv64 >> 6;
+ seq += ktime_to_ns(ktime_get_real()) >> 6;
#if 0
printk("init_seq(%lx, %lx, %d, %d) = %d\n",
saddr, daddr, sport, dport, seq);
@@ -1616,7 +1616,7 @@
seq = half_md4_transform(hash, keyptr->secret);
seq |= ((u64)keyptr->count) << (32 - HASH_BITS);
- seq += ktime_get_real().tv64;
+ seq += ktime_to_ns(ktime_get_real());
seq &= (1ull << 48) - 1;
#if 0
printk("dccp init_seq(%lx, %lx, %d, %d) = %d\n",
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index ec6b65e..0c66b80 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -918,6 +918,31 @@
};
#endif
+static resource_size_t rtc_size;
+
+static struct resource * __init rtc_request_region(resource_size_t size)
+{
+ struct resource *r;
+
+ if (RTC_IOMAPPED)
+ r = request_region(RTC_PORT(0), size, "rtc");
+ else
+ r = request_mem_region(RTC_PORT(0), size, "rtc");
+
+ if (r)
+ rtc_size = size;
+
+ return r;
+}
+
+static void rtc_release_region(void)
+{
+ if (RTC_IOMAPPED)
+ release_region(RTC_PORT(0), rtc_size);
+ else
+ release_mem_region(RTC_PORT(0), rtc_size);
+}
+
static int __init rtc_init(void)
{
#ifdef CONFIG_PROC_FS
@@ -968,10 +993,17 @@
}
no_irq:
#else
- if (RTC_IOMAPPED)
- r = request_region(RTC_PORT(0), RTC_IO_EXTENT, "rtc");
- else
- r = request_mem_region(RTC_PORT(0), RTC_IO_EXTENT, "rtc");
+ r = rtc_request_region(RTC_IO_EXTENT);
+
+ /*
+ * If we've already requested a smaller range (for example, because
+ * PNPBIOS or ACPI told us how the device is configured), the request
+ * above might fail because it's too big.
+ *
+ * If so, request just the range we actually use.
+ */
+ if (!r)
+ r = rtc_request_region(RTC_IO_EXTENT_USED);
if (!r) {
#ifdef RTC_IRQ
rtc_has_irq = 0;
@@ -992,10 +1024,7 @@
/* Yeah right, seeing as irq 8 doesn't even hit the bus. */
rtc_has_irq = 0;
printk(KERN_ERR "rtc: IRQ %d is not free.\n", RTC_IRQ);
- if (RTC_IOMAPPED)
- release_region(RTC_PORT(0), RTC_IO_EXTENT);
- else
- release_mem_region(RTC_PORT(0), RTC_IO_EXTENT);
+ rtc_release_region();
return -EIO;
}
hpet_rtc_timer_init();
@@ -1009,7 +1038,7 @@
free_irq(RTC_IRQ, NULL);
rtc_has_irq = 0;
#endif
- release_region(RTC_PORT(0), RTC_IO_EXTENT);
+ rtc_release_region();
return -ENODEV;
}
@@ -1091,10 +1120,7 @@
if (rtc_has_irq)
free_irq (rtc_irq, &rtc_port);
#else
- if (RTC_IOMAPPED)
- release_region(RTC_PORT(0), RTC_IO_EXTENT);
- else
- release_mem_region(RTC_PORT(0), RTC_IO_EXTENT);
+ rtc_release_region();
#ifdef RTC_IRQ
if (rtc_has_irq)
free_irq (RTC_IRQ, NULL);
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 4bd33ce..1bba997 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -37,17 +37,17 @@
#define DEF_FREQUENCY_UP_THRESHOLD (80)
#define DEF_FREQUENCY_DOWN_THRESHOLD (20)
-/*
- * The polling frequency of this governor depends on the capability of
+/*
+ * The polling frequency of this governor depends on the capability of
* the processor. Default polling frequency is 1000 times the transition
- * latency of the processor. The governor will work on any processor with
- * transition latency <= 10mS, using appropriate sampling
+ * latency of the processor. The governor will work on any processor with
+ * transition latency <= 10mS, using appropriate sampling
* rate.
* For CPUs with transition latency > 10mS (mostly drivers
* with CPUFREQ_ETERNAL), this governor will not work.
* All times here are in uS.
*/
-static unsigned int def_sampling_rate;
+static unsigned int def_sampling_rate;
#define MIN_SAMPLING_RATE_RATIO (2)
/* for correct statistics, we need at least 10 ticks between each measure */
#define MIN_STAT_SAMPLING_RATE \
@@ -63,12 +63,12 @@
static void do_dbs_timer(struct work_struct *work);
struct cpu_dbs_info_s {
- struct cpufreq_policy *cur_policy;
- unsigned int prev_cpu_idle_up;
- unsigned int prev_cpu_idle_down;
- unsigned int enable;
- unsigned int down_skip;
- unsigned int requested_freq;
+ struct cpufreq_policy *cur_policy;
+ unsigned int prev_cpu_idle_up;
+ unsigned int prev_cpu_idle_down;
+ unsigned int enable;
+ unsigned int down_skip;
+ unsigned int requested_freq;
};
static DEFINE_PER_CPU(struct cpu_dbs_info_s, cpu_dbs_info);
@@ -82,24 +82,24 @@
* cpu_hotplug lock should be taken before that. Note that cpu_hotplug lock
* is recursive for the same process. -Venki
*/
-static DEFINE_MUTEX (dbs_mutex);
+static DEFINE_MUTEX (dbs_mutex);
static DECLARE_DELAYED_WORK(dbs_work, do_dbs_timer);
struct dbs_tuners {
- unsigned int sampling_rate;
- unsigned int sampling_down_factor;
- unsigned int up_threshold;
- unsigned int down_threshold;
- unsigned int ignore_nice;
- unsigned int freq_step;
+ unsigned int sampling_rate;
+ unsigned int sampling_down_factor;
+ unsigned int up_threshold;
+ unsigned int down_threshold;
+ unsigned int ignore_nice;
+ unsigned int freq_step;
};
static struct dbs_tuners dbs_tuners_ins = {
- .up_threshold = DEF_FREQUENCY_UP_THRESHOLD,
- .down_threshold = DEF_FREQUENCY_DOWN_THRESHOLD,
- .sampling_down_factor = DEF_SAMPLING_DOWN_FACTOR,
- .ignore_nice = 0,
- .freq_step = 5,
+ .up_threshold = DEF_FREQUENCY_UP_THRESHOLD,
+ .down_threshold = DEF_FREQUENCY_DOWN_THRESHOLD,
+ .sampling_down_factor = DEF_SAMPLING_DOWN_FACTOR,
+ .ignore_nice = 0,
+ .freq_step = 5,
};
static inline unsigned int get_cpu_idle_time(unsigned int cpu)
@@ -109,13 +109,34 @@
if (dbs_tuners_ins.ignore_nice)
add_nice = kstat_cpu(cpu).cpustat.nice;
- ret = kstat_cpu(cpu).cpustat.idle +
+ ret = kstat_cpu(cpu).cpustat.idle +
kstat_cpu(cpu).cpustat.iowait +
add_nice;
return ret;
}
+/* keep track of frequency transitions */
+static int
+dbs_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
+ void *data)
+{
+ struct cpufreq_freqs *freq = data;
+ struct cpu_dbs_info_s *this_dbs_info = &per_cpu(cpu_dbs_info,
+ freq->cpu);
+
+ if (!this_dbs_info->enable)
+ return 0;
+
+ this_dbs_info->requested_freq = freq->new;
+
+ return 0;
+}
+
+static struct notifier_block dbs_cpufreq_notifier_block = {
+ .notifier_call = dbs_cpufreq_notifier
+};
+
/************************** sysfs interface ************************/
static ssize_t show_sampling_rate_max(struct cpufreq_policy *policy, char *buf)
{
@@ -127,8 +148,8 @@
return sprintf (buf, "%u\n", MIN_SAMPLING_RATE);
}
-#define define_one_ro(_name) \
-static struct freq_attr _name = \
+#define define_one_ro(_name) \
+static struct freq_attr _name = \
__ATTR(_name, 0444, show_##_name, NULL)
define_one_ro(sampling_rate_max);
@@ -148,7 +169,7 @@
show_one(ignore_nice_load, ignore_nice);
show_one(freq_step, freq_step);
-static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused,
+static ssize_t store_sampling_down_factor(struct cpufreq_policy *unused,
const char *buf, size_t count)
{
unsigned int input;
@@ -164,7 +185,7 @@
return count;
}
-static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
+static ssize_t store_sampling_rate(struct cpufreq_policy *unused,
const char *buf, size_t count)
{
unsigned int input;
@@ -183,7 +204,7 @@
return count;
}
-static ssize_t store_up_threshold(struct cpufreq_policy *unused,
+static ssize_t store_up_threshold(struct cpufreq_policy *unused,
const char *buf, size_t count)
{
unsigned int input;
@@ -202,7 +223,7 @@
return count;
}
-static ssize_t store_down_threshold(struct cpufreq_policy *unused,
+static ssize_t store_down_threshold(struct cpufreq_policy *unused,
const char *buf, size_t count)
{
unsigned int input;
@@ -228,16 +249,16 @@
int ret;
unsigned int j;
-
- ret = sscanf (buf, "%u", &input);
- if ( ret != 1 )
+
+ ret = sscanf(buf, "%u", &input);
+ if (ret != 1)
return -EINVAL;
- if ( input > 1 )
+ if (input > 1)
input = 1;
-
+
mutex_lock(&dbs_mutex);
- if ( input == dbs_tuners_ins.ignore_nice ) { /* nothing to do */
+ if (input == dbs_tuners_ins.ignore_nice) { /* nothing to do */
mutex_unlock(&dbs_mutex);
return count;
}
@@ -261,14 +282,14 @@
unsigned int input;
int ret;
- ret = sscanf (buf, "%u", &input);
+ ret = sscanf(buf, "%u", &input);
- if ( ret != 1 )
+ if (ret != 1)
return -EINVAL;
- if ( input > 100 )
+ if (input > 100)
input = 100;
-
+
/* no need to test here if freq_step is zero as the user might actually
* want this, they would be crazy though :) */
mutex_lock(&dbs_mutex);
@@ -322,18 +343,18 @@
policy = this_dbs_info->cur_policy;
- /*
- * The default safe range is 20% to 80%
+ /*
+ * The default safe range is 20% to 80%
* Every sampling_rate, we check
- * - If current idle time is less than 20%, then we try to
- * increase frequency
+ * - If current idle time is less than 20%, then we try to
+ * increase frequency
* Every sampling_rate*sampling_down_factor, we check
- * - If current idle time is more than 80%, then we try to
- * decrease frequency
+ * - If current idle time is more than 80%, then we try to
+ * decrease frequency
*
- * Any frequency increase takes it to the maximum frequency.
- * Frequency reduction happens at minimum steps of
- * 5% (default) of max_frequency
+ * Any frequency increase takes it to the maximum frequency.
+ * Frequency reduction happens at minimum steps of
+ * 5% (default) of max_frequency
*/
/* Check for frequency increase */
@@ -361,13 +382,13 @@
/* if we are already at full speed then break out early */
if (this_dbs_info->requested_freq == policy->max)
return;
-
+
freq_step = (dbs_tuners_ins.freq_step * policy->max) / 100;
/* max freq cannot be less than 100. But who knows.... */
if (unlikely(freq_step == 0))
freq_step = 5;
-
+
this_dbs_info->requested_freq += freq_step;
if (this_dbs_info->requested_freq > policy->max)
this_dbs_info->requested_freq = policy->max;
@@ -427,15 +448,15 @@
}
static void do_dbs_timer(struct work_struct *work)
-{
+{
int i;
mutex_lock(&dbs_mutex);
for_each_online_cpu(i)
dbs_check_cpu(i);
- schedule_delayed_work(&dbs_work,
+ schedule_delayed_work(&dbs_work,
usecs_to_jiffies(dbs_tuners_ins.sampling_rate));
mutex_unlock(&dbs_mutex);
-}
+}
static inline void dbs_timer_init(void)
{
@@ -462,13 +483,12 @@
switch (event) {
case CPUFREQ_GOV_START:
- if ((!cpu_online(cpu)) ||
- (!policy->cur))
+ if ((!cpu_online(cpu)) || (!policy->cur))
return -EINVAL;
if (this_dbs_info->enable) /* Already enabled */
break;
-
+
mutex_lock(&dbs_mutex);
rc = sysfs_create_group(&policy->kobj, &dbs_attr_group);
@@ -481,7 +501,7 @@
struct cpu_dbs_info_s *j_dbs_info;
j_dbs_info = &per_cpu(cpu_dbs_info, j);
j_dbs_info->cur_policy = policy;
-
+
j_dbs_info->prev_cpu_idle_up = get_cpu_idle_time(cpu);
j_dbs_info->prev_cpu_idle_down
= j_dbs_info->prev_cpu_idle_up;
@@ -511,8 +531,11 @@
dbs_tuners_ins.sampling_rate = def_sampling_rate;
dbs_timer_init();
+ cpufreq_register_notifier(
+ &dbs_cpufreq_notifier_block,
+ CPUFREQ_TRANSITION_NOTIFIER);
}
-
+
mutex_unlock(&dbs_mutex);
break;
@@ -525,9 +548,13 @@
* Stop the timerschedule work, when this governor
* is used for first time
*/
- if (dbs_enable == 0)
+ if (dbs_enable == 0) {
dbs_timer_exit();
-
+ cpufreq_unregister_notifier(
+ &dbs_cpufreq_notifier_block,
+ CPUFREQ_TRANSITION_NOTIFIER);
+ }
+
mutex_unlock(&dbs_mutex);
break;
@@ -537,11 +564,11 @@
if (policy->max < this_dbs_info->cur_policy->cur)
__cpufreq_driver_target(
this_dbs_info->cur_policy,
- policy->max, CPUFREQ_RELATION_H);
+ policy->max, CPUFREQ_RELATION_H);
else if (policy->min > this_dbs_info->cur_policy->cur)
__cpufreq_driver_target(
this_dbs_info->cur_policy,
- policy->min, CPUFREQ_RELATION_L);
+ policy->min, CPUFREQ_RELATION_L);
mutex_unlock(&dbs_mutex);
break;
}
diff --git a/drivers/crypto/geode-aes.c b/drivers/crypto/geode-aes.c
index f9a34ab..711e246 100644
--- a/drivers/crypto/geode-aes.c
+++ b/drivers/crypto/geode-aes.c
@@ -110,8 +110,7 @@
* we don't need to worry
*/
- if (op->src == op->dst)
- flags |= (AES_CTRL_DCA | AES_CTRL_SCA);
+ flags |= (AES_CTRL_DCA | AES_CTRL_SCA);
if (op->dir == AES_DIR_ENCRYPT)
flags |= AES_CTRL_ENCRYPT;
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 8248992..d59b2f4 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -182,10 +182,9 @@
/* we are done once this client rejects
* an available resource
*/
- if (ack == DMA_ACK) {
+ if (ack == DMA_ACK)
dma_chan_get(chan);
- kref_get(&device->refcount);
- } else if (ack == DMA_NAK)
+ else if (ack == DMA_NAK)
return;
}
}
@@ -272,11 +271,8 @@
/* client was holding resources for this channel so
* free it
*/
- if (ack == DMA_ACK) {
+ if (ack == DMA_ACK)
dma_chan_put(chan);
- kref_put(&chan->device->refcount,
- dma_async_device_cleanup);
- }
}
mutex_unlock(&dma_list_mutex);
@@ -316,11 +312,8 @@
ack = client->event_callback(client, chan,
DMA_RESOURCE_REMOVED);
- if (ack == DMA_ACK) {
+ if (ack == DMA_ACK)
dma_chan_put(chan);
- kref_put(&chan->device->refcount,
- dma_async_device_cleanup);
- }
}
list_del(&client->global_node);
@@ -397,6 +390,8 @@
goto err_out;
}
+ /* One for the channel, one of the class device */
+ kref_get(&device->refcount);
kref_get(&device->refcount);
kref_init(&chan->refcount);
chan->slow_ref = 0;
diff --git a/drivers/dma/ioat.c b/drivers/dma/ioat.c
index f204c39..16e0fd8 100644
--- a/drivers/dma/ioat.c
+++ b/drivers/dma/ioat.c
@@ -39,10 +39,14 @@
MODULE_AUTHOR("Intel Corporation");
static struct pci_device_id ioat_pci_tbl[] = {
+ /* I/OAT v1 platforms */
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_CNB) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_SCNB) },
{ PCI_DEVICE(PCI_VENDOR_ID_UNISYS, PCI_DEVICE_ID_UNISYS_DMA_DIRECTOR) },
+
+ /* I/OAT v2 platforms */
+ { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT_SNB) },
{ 0, }
};
@@ -74,10 +78,17 @@
if (device->dma && ioat_dca_enabled)
device->dca = ioat_dca_init(pdev, iobase);
break;
+ case IOAT_VER_2_0:
+ device->dma = ioat_dma_probe(pdev, iobase);
+ if (device->dma && ioat_dca_enabled)
+ device->dca = ioat2_dca_init(pdev, iobase);
+ break;
default:
err = -ENODEV;
break;
}
+ if (!device->dma)
+ err = -ENODEV;
return err;
}
diff --git a/drivers/dma/ioat_dca.c b/drivers/dma/ioat_dca.c
index ba98571..0fa8a98 100644
--- a/drivers/dma/ioat_dca.c
+++ b/drivers/dma/ioat_dca.c
@@ -261,3 +261,167 @@
return dca;
}
+
+static int ioat2_dca_add_requester(struct dca_provider *dca, struct device *dev)
+{
+ struct ioat_dca_priv *ioatdca = dca_priv(dca);
+ struct pci_dev *pdev;
+ int i;
+ u16 id;
+ u16 global_req_table;
+
+ /* This implementation only supports PCI-Express */
+ if (dev->bus != &pci_bus_type)
+ return -ENODEV;
+ pdev = to_pci_dev(dev);
+ id = dcaid_from_pcidev(pdev);
+
+ if (ioatdca->requester_count == ioatdca->max_requesters)
+ return -ENODEV;
+
+ for (i = 0; i < ioatdca->max_requesters; i++) {
+ if (ioatdca->req_slots[i].pdev == NULL) {
+ /* found an empty slot */
+ ioatdca->requester_count++;
+ ioatdca->req_slots[i].pdev = pdev;
+ ioatdca->req_slots[i].rid = id;
+ global_req_table =
+ readw(ioatdca->dca_base + IOAT_DCA_GREQID_OFFSET);
+ writel(id | IOAT_DCA_GREQID_VALID,
+ ioatdca->iobase + global_req_table + (i * 4));
+ return i;
+ }
+ }
+ /* Error, ioatdma->requester_count is out of whack */
+ return -EFAULT;
+}
+
+static int ioat2_dca_remove_requester(struct dca_provider *dca,
+ struct device *dev)
+{
+ struct ioat_dca_priv *ioatdca = dca_priv(dca);
+ struct pci_dev *pdev;
+ int i;
+ u16 global_req_table;
+
+ /* This implementation only supports PCI-Express */
+ if (dev->bus != &pci_bus_type)
+ return -ENODEV;
+ pdev = to_pci_dev(dev);
+
+ for (i = 0; i < ioatdca->max_requesters; i++) {
+ if (ioatdca->req_slots[i].pdev == pdev) {
+ global_req_table =
+ readw(ioatdca->dca_base + IOAT_DCA_GREQID_OFFSET);
+ writel(0, ioatdca->iobase + global_req_table + (i * 4));
+ ioatdca->req_slots[i].pdev = NULL;
+ ioatdca->req_slots[i].rid = 0;
+ ioatdca->requester_count--;
+ return i;
+ }
+ }
+ return -ENODEV;
+}
+
+static u8 ioat2_dca_get_tag(struct dca_provider *dca, int cpu)
+{
+ u8 tag;
+
+ tag = ioat_dca_get_tag(dca, cpu);
+ tag = (~tag) & 0x1F;
+ return tag;
+}
+
+static struct dca_ops ioat2_dca_ops = {
+ .add_requester = ioat2_dca_add_requester,
+ .remove_requester = ioat2_dca_remove_requester,
+ .get_tag = ioat2_dca_get_tag,
+};
+
+static int ioat2_dca_count_dca_slots(void *iobase, u16 dca_offset)
+{
+ int slots = 0;
+ u32 req;
+ u16 global_req_table;
+
+ global_req_table = readw(iobase + dca_offset + IOAT_DCA_GREQID_OFFSET);
+ if (global_req_table == 0)
+ return 0;
+ do {
+ req = readl(iobase + global_req_table + (slots * sizeof(u32)));
+ slots++;
+ } while ((req & IOAT_DCA_GREQID_LASTID) == 0);
+
+ return slots;
+}
+
+struct dca_provider *ioat2_dca_init(struct pci_dev *pdev, void __iomem *iobase)
+{
+ struct dca_provider *dca;
+ struct ioat_dca_priv *ioatdca;
+ int slots;
+ int i;
+ int err;
+ u32 tag_map;
+ u16 dca_offset;
+ u16 csi_fsb_control;
+ u16 pcie_control;
+ u8 bit;
+
+ if (!system_has_dca_enabled(pdev))
+ return NULL;
+
+ dca_offset = readw(iobase + IOAT_DCAOFFSET_OFFSET);
+ if (dca_offset == 0)
+ return NULL;
+
+ slots = ioat2_dca_count_dca_slots(iobase, dca_offset);
+ if (slots == 0)
+ return NULL;
+
+ dca = alloc_dca_provider(&ioat2_dca_ops,
+ sizeof(*ioatdca)
+ + (sizeof(struct ioat_dca_slot) * slots));
+ if (!dca)
+ return NULL;
+
+ ioatdca = dca_priv(dca);
+ ioatdca->iobase = iobase;
+ ioatdca->dca_base = iobase + dca_offset;
+ ioatdca->max_requesters = slots;
+
+ /* some bios might not know to turn these on */
+ csi_fsb_control = readw(ioatdca->dca_base + IOAT_FSB_CAP_ENABLE_OFFSET);
+ if ((csi_fsb_control & IOAT_FSB_CAP_ENABLE_PREFETCH) == 0) {
+ csi_fsb_control |= IOAT_FSB_CAP_ENABLE_PREFETCH;
+ writew(csi_fsb_control,
+ ioatdca->dca_base + IOAT_FSB_CAP_ENABLE_OFFSET);
+ }
+ pcie_control = readw(ioatdca->dca_base + IOAT_PCI_CAP_ENABLE_OFFSET);
+ if ((pcie_control & IOAT_PCI_CAP_ENABLE_MEMWR) == 0) {
+ pcie_control |= IOAT_PCI_CAP_ENABLE_MEMWR;
+ writew(pcie_control,
+ ioatdca->dca_base + IOAT_PCI_CAP_ENABLE_OFFSET);
+ }
+
+
+ /* TODO version, compatibility and configuration checks */
+
+ /* copy out the APIC to DCA tag map */
+ tag_map = readl(ioatdca->dca_base + IOAT_APICID_TAG_MAP_OFFSET);
+ for (i = 0; i < 5; i++) {
+ bit = (tag_map >> (4 * i)) & 0x0f;
+ if (bit < 8)
+ ioatdca->tag_map[i] = bit | DCA_TAG_MAP_VALID;
+ else
+ ioatdca->tag_map[i] = 0;
+ }
+
+ err = register_dca_provider(dca, &pdev->dev);
+ if (err) {
+ free_dca_provider(dca);
+ return NULL;
+ }
+
+ return dca;
+}
diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c
index 7e4a785..c1c2dcc 100644
--- a/drivers/dma/ioat_dma.c
+++ b/drivers/dma/ioat_dma.c
@@ -36,18 +36,24 @@
#include "ioatdma_registers.h"
#include "ioatdma_hw.h"
-#define INITIAL_IOAT_DESC_COUNT 128
-
#define to_ioat_chan(chan) container_of(chan, struct ioat_dma_chan, common)
#define to_ioatdma_device(dev) container_of(dev, struct ioatdma_device, common)
#define to_ioat_desc(lh) container_of(lh, struct ioat_desc_sw, node)
#define tx_to_ioat_desc(tx) container_of(tx, struct ioat_desc_sw, async_tx)
+static int ioat_pending_level = 4;
+module_param(ioat_pending_level, int, 0644);
+MODULE_PARM_DESC(ioat_pending_level,
+ "high-water mark for pushing ioat descriptors (default: 4)");
+
/* internal functions */
static void ioat_dma_start_null_desc(struct ioat_dma_chan *ioat_chan);
static void ioat_dma_memcpy_cleanup(struct ioat_dma_chan *ioat_chan);
+
static struct ioat_desc_sw *
-ioat_dma_get_next_descriptor(struct ioat_dma_chan *ioat_chan);
+ioat1_dma_get_next_descriptor(struct ioat_dma_chan *ioat_chan);
+static struct ioat_desc_sw *
+ioat2_dma_get_next_descriptor(struct ioat_dma_chan *ioat_chan);
static inline struct ioat_dma_chan *ioat_lookup_chan_by_index(
struct ioatdma_device *device,
@@ -130,6 +136,12 @@
ioat_chan->device = device;
ioat_chan->reg_base = device->reg_base + (0x80 * (i + 1));
ioat_chan->xfercap = xfercap;
+ ioat_chan->desccount = 0;
+ if (ioat_chan->device->version != IOAT_VER_1_2) {
+ writel(IOAT_DCACTRL_CMPL_WRITE_ENABLE
+ | IOAT_DMA_DCA_ANY_CPU,
+ ioat_chan->reg_base + IOAT_DCACTRL_OFFSET);
+ }
spin_lock_init(&ioat_chan->cleanup_lock);
spin_lock_init(&ioat_chan->desc_lock);
INIT_LIST_HEAD(&ioat_chan->free_desc);
@@ -161,13 +173,17 @@
tx_to_ioat_desc(tx)->dst = addr;
}
-static dma_cookie_t ioat_tx_submit(struct dma_async_tx_descriptor *tx)
+static inline void __ioat1_dma_memcpy_issue_pending(
+ struct ioat_dma_chan *ioat_chan);
+static inline void __ioat2_dma_memcpy_issue_pending(
+ struct ioat_dma_chan *ioat_chan);
+
+static dma_cookie_t ioat1_tx_submit(struct dma_async_tx_descriptor *tx)
{
struct ioat_dma_chan *ioat_chan = to_ioat_chan(tx->chan);
struct ioat_desc_sw *first = tx_to_ioat_desc(tx);
struct ioat_desc_sw *prev, *new;
struct ioat_dma_descriptor *hw;
- int append = 0;
dma_cookie_t cookie;
LIST_HEAD(new_chain);
u32 copy;
@@ -209,7 +225,7 @@
list_add_tail(&new->node, &new_chain);
desc_count++;
prev = new;
- } while (len && (new = ioat_dma_get_next_descriptor(ioat_chan)));
+ } while (len && (new = ioat1_dma_get_next_descriptor(ioat_chan)));
hw->ctl = IOAT_DMA_DESCRIPTOR_CTL_CP_STS;
if (new->async_tx.callback) {
@@ -246,20 +262,98 @@
first->async_tx.phys;
__list_splice(&new_chain, ioat_chan->used_desc.prev);
+ ioat_chan->dmacount += desc_count;
ioat_chan->pending += desc_count;
- if (ioat_chan->pending >= 4) {
- append = 1;
- ioat_chan->pending = 0;
- }
+ if (ioat_chan->pending >= ioat_pending_level)
+ __ioat1_dma_memcpy_issue_pending(ioat_chan);
spin_unlock_bh(&ioat_chan->desc_lock);
- if (append)
- writeb(IOAT_CHANCMD_APPEND,
- ioat_chan->reg_base + IOAT_CHANCMD_OFFSET);
-
return cookie;
}
+static dma_cookie_t ioat2_tx_submit(struct dma_async_tx_descriptor *tx)
+{
+ struct ioat_dma_chan *ioat_chan = to_ioat_chan(tx->chan);
+ struct ioat_desc_sw *first = tx_to_ioat_desc(tx);
+ struct ioat_desc_sw *new;
+ struct ioat_dma_descriptor *hw;
+ dma_cookie_t cookie;
+ u32 copy;
+ size_t len;
+ dma_addr_t src, dst;
+ int orig_ack;
+ unsigned int desc_count = 0;
+
+ /* src and dest and len are stored in the initial descriptor */
+ len = first->len;
+ src = first->src;
+ dst = first->dst;
+ orig_ack = first->async_tx.ack;
+ new = first;
+
+ /* ioat_chan->desc_lock is still in force in version 2 path */
+
+ do {
+ copy = min((u32) len, ioat_chan->xfercap);
+
+ new->async_tx.ack = 1;
+
+ hw = new->hw;
+ hw->size = copy;
+ hw->ctl = 0;
+ hw->src_addr = src;
+ hw->dst_addr = dst;
+
+ len -= copy;
+ dst += copy;
+ src += copy;
+ desc_count++;
+ } while (len && (new = ioat2_dma_get_next_descriptor(ioat_chan)));
+
+ hw->ctl = IOAT_DMA_DESCRIPTOR_CTL_CP_STS;
+ if (new->async_tx.callback) {
+ hw->ctl |= IOAT_DMA_DESCRIPTOR_CTL_INT_GN;
+ if (first != new) {
+ /* move callback into to last desc */
+ new->async_tx.callback = first->async_tx.callback;
+ new->async_tx.callback_param
+ = first->async_tx.callback_param;
+ first->async_tx.callback = NULL;
+ first->async_tx.callback_param = NULL;
+ }
+ }
+
+ new->tx_cnt = desc_count;
+ new->async_tx.ack = orig_ack; /* client is in control of this ack */
+
+ /* store the original values for use in later cleanup */
+ if (new != first) {
+ new->src = first->src;
+ new->dst = first->dst;
+ new->len = first->len;
+ }
+
+ /* cookie incr and addition to used_list must be atomic */
+ cookie = ioat_chan->common.cookie;
+ cookie++;
+ if (cookie < 0)
+ cookie = 1;
+ ioat_chan->common.cookie = new->async_tx.cookie = cookie;
+
+ ioat_chan->dmacount += desc_count;
+ ioat_chan->pending += desc_count;
+ if (ioat_chan->pending >= ioat_pending_level)
+ __ioat2_dma_memcpy_issue_pending(ioat_chan);
+ spin_unlock_bh(&ioat_chan->desc_lock);
+
+ return cookie;
+}
+
+/**
+ * ioat_dma_alloc_descriptor - allocate and return a sw and hw descriptor pair
+ * @ioat_chan: the channel supplying the memory pool for the descriptors
+ * @flags: allocation flags
+ */
static struct ioat_desc_sw *ioat_dma_alloc_descriptor(
struct ioat_dma_chan *ioat_chan,
gfp_t flags)
@@ -284,15 +378,57 @@
dma_async_tx_descriptor_init(&desc_sw->async_tx, &ioat_chan->common);
desc_sw->async_tx.tx_set_src = ioat_set_src;
desc_sw->async_tx.tx_set_dest = ioat_set_dest;
- desc_sw->async_tx.tx_submit = ioat_tx_submit;
+ switch (ioat_chan->device->version) {
+ case IOAT_VER_1_2:
+ desc_sw->async_tx.tx_submit = ioat1_tx_submit;
+ break;
+ case IOAT_VER_2_0:
+ desc_sw->async_tx.tx_submit = ioat2_tx_submit;
+ break;
+ }
INIT_LIST_HEAD(&desc_sw->async_tx.tx_list);
+
desc_sw->hw = desc;
desc_sw->async_tx.phys = phys;
return desc_sw;
}
-/* returns the actual number of allocated descriptors */
+static int ioat_initial_desc_count = 256;
+module_param(ioat_initial_desc_count, int, 0644);
+MODULE_PARM_DESC(ioat_initial_desc_count,
+ "initial descriptors per channel (default: 256)");
+
+/**
+ * ioat2_dma_massage_chan_desc - link the descriptors into a circle
+ * @ioat_chan: the channel to be massaged
+ */
+static void ioat2_dma_massage_chan_desc(struct ioat_dma_chan *ioat_chan)
+{
+ struct ioat_desc_sw *desc, *_desc;
+
+ /* setup used_desc */
+ ioat_chan->used_desc.next = ioat_chan->free_desc.next;
+ ioat_chan->used_desc.prev = NULL;
+
+ /* pull free_desc out of the circle so that every node is a hw
+ * descriptor, but leave it pointing to the list
+ */
+ ioat_chan->free_desc.prev->next = ioat_chan->free_desc.next;
+ ioat_chan->free_desc.next->prev = ioat_chan->free_desc.prev;
+
+ /* circle link the hw descriptors */
+ desc = to_ioat_desc(ioat_chan->free_desc.next);
+ desc->hw->next = to_ioat_desc(desc->node.next)->async_tx.phys;
+ list_for_each_entry_safe(desc, _desc, ioat_chan->free_desc.next, node) {
+ desc->hw->next = to_ioat_desc(desc->node.next)->async_tx.phys;
+ }
+}
+
+/**
+ * ioat_dma_alloc_chan_resources - returns the number of allocated descriptors
+ * @chan: the channel to be filled out
+ */
static int ioat_dma_alloc_chan_resources(struct dma_chan *chan)
{
struct ioat_dma_chan *ioat_chan = to_ioat_chan(chan);
@@ -304,7 +440,7 @@
/* have we already been set up? */
if (!list_empty(&ioat_chan->free_desc))
- return INITIAL_IOAT_DESC_COUNT;
+ return ioat_chan->desccount;
/* Setup register to interrupt and write completion status on error */
chanctrl = IOAT_CHANCTRL_ERR_INT_EN |
@@ -320,7 +456,7 @@
}
/* Allocate descriptors */
- for (i = 0; i < INITIAL_IOAT_DESC_COUNT; i++) {
+ for (i = 0; i < ioat_initial_desc_count; i++) {
desc = ioat_dma_alloc_descriptor(ioat_chan, GFP_KERNEL);
if (!desc) {
dev_err(&ioat_chan->device->pdev->dev,
@@ -330,7 +466,10 @@
list_add_tail(&desc->node, &tmp_list);
}
spin_lock_bh(&ioat_chan->desc_lock);
+ ioat_chan->desccount = i;
list_splice(&tmp_list, &ioat_chan->free_desc);
+ if (ioat_chan->device->version != IOAT_VER_1_2)
+ ioat2_dma_massage_chan_desc(ioat_chan);
spin_unlock_bh(&ioat_chan->desc_lock);
/* allocate a completion writeback area */
@@ -347,10 +486,14 @@
ioat_chan->reg_base + IOAT_CHANCMP_OFFSET_HIGH);
tasklet_enable(&ioat_chan->cleanup_task);
- ioat_dma_start_null_desc(ioat_chan);
- return i;
+ ioat_dma_start_null_desc(ioat_chan); /* give chain to dma device */
+ return ioat_chan->desccount;
}
+/**
+ * ioat_dma_free_chan_resources - release all the descriptors
+ * @chan: the channel to be cleaned
+ */
static void ioat_dma_free_chan_resources(struct dma_chan *chan)
{
struct ioat_dma_chan *ioat_chan = to_ioat_chan(chan);
@@ -364,22 +507,45 @@
/* Delay 100ms after reset to allow internal DMA logic to quiesce
* before removing DMA descriptor resources.
*/
- writeb(IOAT_CHANCMD_RESET, ioat_chan->reg_base + IOAT_CHANCMD_OFFSET);
+ writeb(IOAT_CHANCMD_RESET,
+ ioat_chan->reg_base
+ + IOAT_CHANCMD_OFFSET(ioat_chan->device->version));
mdelay(100);
spin_lock_bh(&ioat_chan->desc_lock);
- list_for_each_entry_safe(desc, _desc, &ioat_chan->used_desc, node) {
- in_use_descs++;
- list_del(&desc->node);
+ switch (ioat_chan->device->version) {
+ case IOAT_VER_1_2:
+ list_for_each_entry_safe(desc, _desc,
+ &ioat_chan->used_desc, node) {
+ in_use_descs++;
+ list_del(&desc->node);
+ pci_pool_free(ioatdma_device->dma_pool, desc->hw,
+ desc->async_tx.phys);
+ kfree(desc);
+ }
+ list_for_each_entry_safe(desc, _desc,
+ &ioat_chan->free_desc, node) {
+ list_del(&desc->node);
+ pci_pool_free(ioatdma_device->dma_pool, desc->hw,
+ desc->async_tx.phys);
+ kfree(desc);
+ }
+ break;
+ case IOAT_VER_2_0:
+ list_for_each_entry_safe(desc, _desc,
+ ioat_chan->free_desc.next, node) {
+ list_del(&desc->node);
+ pci_pool_free(ioatdma_device->dma_pool, desc->hw,
+ desc->async_tx.phys);
+ kfree(desc);
+ }
+ desc = to_ioat_desc(ioat_chan->free_desc.next);
pci_pool_free(ioatdma_device->dma_pool, desc->hw,
desc->async_tx.phys);
kfree(desc);
- }
- list_for_each_entry_safe(desc, _desc, &ioat_chan->free_desc, node) {
- list_del(&desc->node);
- pci_pool_free(ioatdma_device->dma_pool, desc->hw,
- desc->async_tx.phys);
- kfree(desc);
+ INIT_LIST_HEAD(&ioat_chan->free_desc);
+ INIT_LIST_HEAD(&ioat_chan->used_desc);
+ break;
}
spin_unlock_bh(&ioat_chan->desc_lock);
@@ -395,6 +561,7 @@
ioat_chan->last_completion = ioat_chan->completion_addr = 0;
ioat_chan->pending = 0;
+ ioat_chan->dmacount = 0;
}
/**
@@ -406,7 +573,7 @@
* has run out.
*/
static struct ioat_desc_sw *
-ioat_dma_get_next_descriptor(struct ioat_dma_chan *ioat_chan)
+ioat1_dma_get_next_descriptor(struct ioat_dma_chan *ioat_chan)
{
struct ioat_desc_sw *new = NULL;
@@ -425,7 +592,82 @@
return new;
}
-static struct dma_async_tx_descriptor *ioat_dma_prep_memcpy(
+static struct ioat_desc_sw *
+ioat2_dma_get_next_descriptor(struct ioat_dma_chan *ioat_chan)
+{
+ struct ioat_desc_sw *new = NULL;
+
+ /*
+ * used.prev points to where to start processing
+ * used.next points to next free descriptor
+ * if used.prev == NULL, there are none waiting to be processed
+ * if used.next == used.prev.prev, there is only one free descriptor,
+ * and we need to use it to as a noop descriptor before
+ * linking in a new set of descriptors, since the device
+ * has probably already read the pointer to it
+ */
+ if (ioat_chan->used_desc.prev &&
+ ioat_chan->used_desc.next == ioat_chan->used_desc.prev->prev) {
+
+ struct ioat_desc_sw *desc = NULL;
+ struct ioat_desc_sw *noop_desc = NULL;
+ int i;
+
+ /* set up the noop descriptor */
+ noop_desc = to_ioat_desc(ioat_chan->used_desc.next);
+ noop_desc->hw->size = 0;
+ noop_desc->hw->ctl = IOAT_DMA_DESCRIPTOR_NUL;
+ noop_desc->hw->src_addr = 0;
+ noop_desc->hw->dst_addr = 0;
+
+ ioat_chan->used_desc.next = ioat_chan->used_desc.next->next;
+ ioat_chan->pending++;
+ ioat_chan->dmacount++;
+
+ /* get a few more descriptors */
+ for (i = 16; i; i--) {
+ desc = ioat_dma_alloc_descriptor(ioat_chan, GFP_ATOMIC);
+ BUG_ON(!desc);
+ list_add_tail(&desc->node, ioat_chan->used_desc.next);
+
+ desc->hw->next
+ = to_ioat_desc(desc->node.next)->async_tx.phys;
+ to_ioat_desc(desc->node.prev)->hw->next
+ = desc->async_tx.phys;
+ ioat_chan->desccount++;
+ }
+
+ ioat_chan->used_desc.next = noop_desc->node.next;
+ }
+ new = to_ioat_desc(ioat_chan->used_desc.next);
+ prefetch(new);
+ ioat_chan->used_desc.next = new->node.next;
+
+ if (ioat_chan->used_desc.prev == NULL)
+ ioat_chan->used_desc.prev = &new->node;
+
+ prefetch(new->hw);
+ return new;
+}
+
+static struct ioat_desc_sw *ioat_dma_get_next_descriptor(
+ struct ioat_dma_chan *ioat_chan)
+{
+ if (!ioat_chan)
+ return NULL;
+
+ switch (ioat_chan->device->version) {
+ case IOAT_VER_1_2:
+ return ioat1_dma_get_next_descriptor(ioat_chan);
+ break;
+ case IOAT_VER_2_0:
+ return ioat2_dma_get_next_descriptor(ioat_chan);
+ break;
+ }
+ return NULL;
+}
+
+static struct dma_async_tx_descriptor *ioat1_dma_prep_memcpy(
struct dma_chan *chan,
size_t len,
int int_en)
@@ -441,19 +683,62 @@
return new ? &new->async_tx : NULL;
}
+static struct dma_async_tx_descriptor *ioat2_dma_prep_memcpy(
+ struct dma_chan *chan,
+ size_t len,
+ int int_en)
+{
+ struct ioat_dma_chan *ioat_chan = to_ioat_chan(chan);
+ struct ioat_desc_sw *new;
+
+ spin_lock_bh(&ioat_chan->desc_lock);
+ new = ioat2_dma_get_next_descriptor(ioat_chan);
+ new->len = len;
+
+ /* leave ioat_chan->desc_lock set in version 2 path */
+ return new ? &new->async_tx : NULL;
+}
+
+
/**
* ioat_dma_memcpy_issue_pending - push potentially unrecognized appended
* descriptors to hw
* @chan: DMA channel handle
*/
-static void ioat_dma_memcpy_issue_pending(struct dma_chan *chan)
+static inline void __ioat1_dma_memcpy_issue_pending(
+ struct ioat_dma_chan *ioat_chan)
+{
+ ioat_chan->pending = 0;
+ writeb(IOAT_CHANCMD_APPEND, ioat_chan->reg_base + IOAT1_CHANCMD_OFFSET);
+}
+
+static void ioat1_dma_memcpy_issue_pending(struct dma_chan *chan)
{
struct ioat_dma_chan *ioat_chan = to_ioat_chan(chan);
if (ioat_chan->pending != 0) {
- ioat_chan->pending = 0;
- writeb(IOAT_CHANCMD_APPEND,
- ioat_chan->reg_base + IOAT_CHANCMD_OFFSET);
+ spin_lock_bh(&ioat_chan->desc_lock);
+ __ioat1_dma_memcpy_issue_pending(ioat_chan);
+ spin_unlock_bh(&ioat_chan->desc_lock);
+ }
+}
+
+static inline void __ioat2_dma_memcpy_issue_pending(
+ struct ioat_dma_chan *ioat_chan)
+{
+ ioat_chan->pending = 0;
+ writew(ioat_chan->dmacount,
+ ioat_chan->reg_base + IOAT_CHAN_DMACOUNT_OFFSET);
+}
+
+static void ioat2_dma_memcpy_issue_pending(struct dma_chan *chan)
+{
+ struct ioat_dma_chan *ioat_chan = to_ioat_chan(chan);
+
+ if (ioat_chan->pending != 0) {
+ spin_lock_bh(&ioat_chan->desc_lock);
+ __ioat2_dma_memcpy_issue_pending(ioat_chan);
+ spin_unlock_bh(&ioat_chan->desc_lock);
}
}
@@ -465,11 +750,17 @@
chan->reg_base + IOAT_CHANCTRL_OFFSET);
}
+/**
+ * ioat_dma_memcpy_cleanup - cleanup up finished descriptors
+ * @chan: ioat channel to be cleaned up
+ */
static void ioat_dma_memcpy_cleanup(struct ioat_dma_chan *ioat_chan)
{
unsigned long phys_complete;
struct ioat_desc_sw *desc, *_desc;
dma_cookie_t cookie = 0;
+ unsigned long desc_phys;
+ struct ioat_desc_sw *latest_desc;
prefetch(ioat_chan->completion_virt);
@@ -507,56 +798,115 @@
cookie = 0;
spin_lock_bh(&ioat_chan->desc_lock);
- list_for_each_entry_safe(desc, _desc, &ioat_chan->used_desc, node) {
-
- /*
- * Incoming DMA requests may use multiple descriptors, due to
- * exceeding xfercap, perhaps. If so, only the last one will
- * have a cookie, and require unmapping.
- */
- if (desc->async_tx.cookie) {
- cookie = desc->async_tx.cookie;
+ switch (ioat_chan->device->version) {
+ case IOAT_VER_1_2:
+ list_for_each_entry_safe(desc, _desc,
+ &ioat_chan->used_desc, node) {
/*
- * yes we are unmapping both _page and _single alloc'd
- * regions with unmap_page. Is this *really* that bad?
+ * Incoming DMA requests may use multiple descriptors,
+ * due to exceeding xfercap, perhaps. If so, only the
+ * last one will have a cookie, and require unmapping.
*/
- pci_unmap_page(ioat_chan->device->pdev,
- pci_unmap_addr(desc, dst),
- pci_unmap_len(desc, len),
- PCI_DMA_FROMDEVICE);
- pci_unmap_page(ioat_chan->device->pdev,
- pci_unmap_addr(desc, src),
- pci_unmap_len(desc, len),
- PCI_DMA_TODEVICE);
- if (desc->async_tx.callback) {
- desc->async_tx.callback(
- desc->async_tx.callback_param);
- desc->async_tx.callback = NULL;
+ if (desc->async_tx.cookie) {
+ cookie = desc->async_tx.cookie;
+
+ /*
+ * yes we are unmapping both _page and _single
+ * alloc'd regions with unmap_page. Is this
+ * *really* that bad?
+ */
+ pci_unmap_page(ioat_chan->device->pdev,
+ pci_unmap_addr(desc, dst),
+ pci_unmap_len(desc, len),
+ PCI_DMA_FROMDEVICE);
+ pci_unmap_page(ioat_chan->device->pdev,
+ pci_unmap_addr(desc, src),
+ pci_unmap_len(desc, len),
+ PCI_DMA_TODEVICE);
+
+ if (desc->async_tx.callback) {
+ desc->async_tx.callback(desc->async_tx.callback_param);
+ desc->async_tx.callback = NULL;
+ }
+ }
+
+ if (desc->async_tx.phys != phys_complete) {
+ /*
+ * a completed entry, but not the last, so clean
+ * up if the client is done with the descriptor
+ */
+ if (desc->async_tx.ack) {
+ list_del(&desc->node);
+ list_add_tail(&desc->node,
+ &ioat_chan->free_desc);
+ } else
+ desc->async_tx.cookie = 0;
+ } else {
+ /*
+ * last used desc. Do not remove, so we can
+ * append from it, but don't look at it next
+ * time, either
+ */
+ desc->async_tx.cookie = 0;
+
+ /* TODO check status bits? */
+ break;
}
}
-
- if (desc->async_tx.phys != phys_complete) {
- /*
- * a completed entry, but not the last, so cleanup
- * if the client is done with the descriptor
- */
- if (desc->async_tx.ack) {
- list_del(&desc->node);
- list_add_tail(&desc->node,
- &ioat_chan->free_desc);
- } else
- desc->async_tx.cookie = 0;
- } else {
- /*
- * last used desc. Do not remove, so we can append from
- * it, but don't look at it next time, either
- */
- desc->async_tx.cookie = 0;
-
- /* TODO check status bits? */
+ break;
+ case IOAT_VER_2_0:
+ /* has some other thread has already cleaned up? */
+ if (ioat_chan->used_desc.prev == NULL)
break;
+
+ /* work backwards to find latest finished desc */
+ desc = to_ioat_desc(ioat_chan->used_desc.next);
+ latest_desc = NULL;
+ do {
+ desc = to_ioat_desc(desc->node.prev);
+ desc_phys = (unsigned long)desc->async_tx.phys
+ & IOAT_CHANSTS_COMPLETED_DESCRIPTOR_ADDR;
+ if (desc_phys == phys_complete) {
+ latest_desc = desc;
+ break;
+ }
+ } while (&desc->node != ioat_chan->used_desc.prev);
+
+ if (latest_desc != NULL) {
+
+ /* work forwards to clear finished descriptors */
+ for (desc = to_ioat_desc(ioat_chan->used_desc.prev);
+ &desc->node != latest_desc->node.next &&
+ &desc->node != ioat_chan->used_desc.next;
+ desc = to_ioat_desc(desc->node.next)) {
+ if (desc->async_tx.cookie) {
+ cookie = desc->async_tx.cookie;
+ desc->async_tx.cookie = 0;
+
+ pci_unmap_page(ioat_chan->device->pdev,
+ pci_unmap_addr(desc, dst),
+ pci_unmap_len(desc, len),
+ PCI_DMA_FROMDEVICE);
+ pci_unmap_page(ioat_chan->device->pdev,
+ pci_unmap_addr(desc, src),
+ pci_unmap_len(desc, len),
+ PCI_DMA_TODEVICE);
+
+ if (desc->async_tx.callback) {
+ desc->async_tx.callback(desc->async_tx.callback_param);
+ desc->async_tx.callback = NULL;
+ }
+ }
+ }
+
+ /* move used.prev up beyond those that are finished */
+ if (&desc->node == ioat_chan->used_desc.next)
+ ioat_chan->used_desc.prev = NULL;
+ else
+ ioat_chan->used_desc.prev = &desc->node;
}
+ break;
}
spin_unlock_bh(&ioat_chan->desc_lock);
@@ -621,8 +971,6 @@
return dma_async_is_complete(cookie, last_complete, last_used);
}
-/* PCI API */
-
static void ioat_dma_start_null_desc(struct ioat_dma_chan *ioat_chan)
{
struct ioat_desc_sw *desc;
@@ -633,21 +981,34 @@
desc->hw->ctl = IOAT_DMA_DESCRIPTOR_NUL
| IOAT_DMA_DESCRIPTOR_CTL_INT_GN
| IOAT_DMA_DESCRIPTOR_CTL_CP_STS;
- desc->hw->next = 0;
desc->hw->size = 0;
desc->hw->src_addr = 0;
desc->hw->dst_addr = 0;
desc->async_tx.ack = 1;
+ switch (ioat_chan->device->version) {
+ case IOAT_VER_1_2:
+ desc->hw->next = 0;
+ list_add_tail(&desc->node, &ioat_chan->used_desc);
- list_add_tail(&desc->node, &ioat_chan->used_desc);
+ writel(((u64) desc->async_tx.phys) & 0x00000000FFFFFFFF,
+ ioat_chan->reg_base + IOAT1_CHAINADDR_OFFSET_LOW);
+ writel(((u64) desc->async_tx.phys) >> 32,
+ ioat_chan->reg_base + IOAT1_CHAINADDR_OFFSET_HIGH);
+
+ writeb(IOAT_CHANCMD_START, ioat_chan->reg_base
+ + IOAT_CHANCMD_OFFSET(ioat_chan->device->version));
+ break;
+ case IOAT_VER_2_0:
+ writel(((u64) desc->async_tx.phys) & 0x00000000FFFFFFFF,
+ ioat_chan->reg_base + IOAT2_CHAINADDR_OFFSET_LOW);
+ writel(((u64) desc->async_tx.phys) >> 32,
+ ioat_chan->reg_base + IOAT2_CHAINADDR_OFFSET_HIGH);
+
+ ioat_chan->dmacount++;
+ __ioat2_dma_memcpy_issue_pending(ioat_chan);
+ break;
+ }
spin_unlock_bh(&ioat_chan->desc_lock);
-
- writel(((u64) desc->async_tx.phys) & 0x00000000FFFFFFFF,
- ioat_chan->reg_base + IOAT_CHAINADDR_OFFSET_LOW);
- writel(((u64) desc->async_tx.phys) >> 32,
- ioat_chan->reg_base + IOAT_CHAINADDR_OFFSET_HIGH);
-
- writeb(IOAT_CHANCMD_START, ioat_chan->reg_base + IOAT_CHANCMD_OFFSET);
}
/*
@@ -693,14 +1054,14 @@
dma_chan = container_of(device->common.channels.next,
struct dma_chan,
device_node);
- if (ioat_dma_alloc_chan_resources(dma_chan) < 1) {
+ if (device->common.device_alloc_chan_resources(dma_chan) < 1) {
dev_err(&device->pdev->dev,
"selftest cannot allocate chan resource\n");
err = -ENODEV;
goto out;
}
- tx = ioat_dma_prep_memcpy(dma_chan, IOAT_TEST_SIZE, 0);
+ tx = device->common.device_prep_dma_memcpy(dma_chan, IOAT_TEST_SIZE, 0);
if (!tx) {
dev_err(&device->pdev->dev,
"Self-test prep failed, disabling\n");
@@ -710,24 +1071,25 @@
async_tx_ack(tx);
addr = dma_map_single(dma_chan->device->dev, src, IOAT_TEST_SIZE,
- DMA_TO_DEVICE);
- ioat_set_src(addr, tx, 0);
+ DMA_TO_DEVICE);
+ tx->tx_set_src(addr, tx, 0);
addr = dma_map_single(dma_chan->device->dev, dest, IOAT_TEST_SIZE,
- DMA_FROM_DEVICE);
- ioat_set_dest(addr, tx, 0);
+ DMA_FROM_DEVICE);
+ tx->tx_set_dest(addr, tx, 0);
tx->callback = ioat_dma_test_callback;
tx->callback_param = (void *)0x8086;
- cookie = ioat_tx_submit(tx);
+ cookie = tx->tx_submit(tx);
if (cookie < 0) {
dev_err(&device->pdev->dev,
"Self-test setup failed, disabling\n");
err = -ENODEV;
goto free_resources;
}
- ioat_dma_memcpy_issue_pending(dma_chan);
+ device->common.device_issue_pending(dma_chan);
msleep(1);
- if (ioat_dma_is_complete(dma_chan, cookie, NULL, NULL) != DMA_SUCCESS) {
+ if (device->common.device_is_tx_complete(dma_chan, cookie, NULL, NULL)
+ != DMA_SUCCESS) {
dev_err(&device->pdev->dev,
"Self-test copy timed out, disabling\n");
err = -ENODEV;
@@ -741,7 +1103,7 @@
}
free_resources:
- ioat_dma_free_chan_resources(dma_chan);
+ device->common.device_free_chan_resources(dma_chan);
out:
kfree(src);
kfree(dest);
@@ -941,16 +1303,28 @@
INIT_LIST_HEAD(&device->common.channels);
ioat_dma_enumerate_channels(device);
- dma_cap_set(DMA_MEMCPY, device->common.cap_mask);
device->common.device_alloc_chan_resources =
ioat_dma_alloc_chan_resources;
device->common.device_free_chan_resources =
ioat_dma_free_chan_resources;
- device->common.device_prep_dma_memcpy = ioat_dma_prep_memcpy;
- device->common.device_is_tx_complete = ioat_dma_is_complete;
- device->common.device_issue_pending = ioat_dma_memcpy_issue_pending;
- device->common.device_dependency_added = ioat_dma_dependency_added;
device->common.dev = &pdev->dev;
+
+ dma_cap_set(DMA_MEMCPY, device->common.cap_mask);
+ device->common.device_is_tx_complete = ioat_dma_is_complete;
+ device->common.device_dependency_added = ioat_dma_dependency_added;
+ switch (device->version) {
+ case IOAT_VER_1_2:
+ device->common.device_prep_dma_memcpy = ioat1_dma_prep_memcpy;
+ device->common.device_issue_pending =
+ ioat1_dma_memcpy_issue_pending;
+ break;
+ case IOAT_VER_2_0:
+ device->common.device_prep_dma_memcpy = ioat2_dma_prep_memcpy;
+ device->common.device_issue_pending =
+ ioat2_dma_memcpy_issue_pending;
+ break;
+ }
+
dev_err(&device->pdev->dev,
"Intel(R) I/OAT DMA Engine found,"
" %d channels, device version 0x%02x, driver version %s\n",
diff --git a/drivers/dma/ioatdma.h b/drivers/dma/ioatdma.h
index 5f9881e7..b668234 100644
--- a/drivers/dma/ioatdma.h
+++ b/drivers/dma/ioatdma.h
@@ -1,5 +1,5 @@
/*
- * Copyright(c) 2004 - 2006 Intel Corporation. All rights reserved.
+ * Copyright(c) 2004 - 2007 Intel Corporation. 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
@@ -28,7 +28,7 @@
#include <linux/cache.h>
#include <linux/pci_ids.h>
-#define IOAT_DMA_VERSION "1.26"
+#define IOAT_DMA_VERSION "2.04"
enum ioat_interrupt {
none = 0,
@@ -39,6 +39,8 @@
};
#define IOAT_LOW_COMPLETION_MASK 0xffffffc0
+#define IOAT_DMA_DCA_ANY_CPU ~0
+
/**
* struct ioatdma_device - internal representation of a IOAT device
@@ -47,6 +49,9 @@
* @dma_pool: for allocating DMA descriptors
* @common: embedded struct dma_device
* @version: version of ioatdma device
+ * @irq_mode: which style irq to use
+ * @msix_entries: irq handlers
+ * @idx: per channel data
*/
struct ioatdma_device {
@@ -63,23 +68,7 @@
/**
* struct ioat_dma_chan - internal representation of a DMA channel
- * @device:
- * @reg_base:
- * @sw_in_use:
- * @completion:
- * @completion_low:
- * @completion_high:
- * @completed_cookie: last cookie seen completed on cleanup
- * @cookie: value of last cookie given to client
- * @last_completion:
- * @xfercap:
- * @desc_lock:
- * @free_desc:
- * @used_desc:
- * @resource:
- * @device_node:
*/
-
struct ioat_dma_chan {
void __iomem *reg_base;
@@ -95,6 +84,8 @@
struct list_head used_desc;
int pending;
+ int dmacount;
+ int desccount;
struct ioatdma_device *device;
struct dma_chan common;
@@ -134,12 +125,13 @@
struct ioatdma_device *ioat_dma_probe(struct pci_dev *pdev,
void __iomem *iobase);
void ioat_dma_remove(struct ioatdma_device *device);
-struct dca_provider *ioat_dca_init(struct pci_dev *pdev,
- void __iomem *iobase);
+struct dca_provider *ioat_dca_init(struct pci_dev *pdev, void __iomem *iobase);
+struct dca_provider *ioat2_dca_init(struct pci_dev *pdev, void __iomem *iobase);
#else
#define ioat_dma_probe(pdev, iobase) NULL
#define ioat_dma_remove(device) do { } while (0)
#define ioat_dca_init(pdev, iobase) NULL
+#define ioat2_dca_init(pdev, iobase) NULL
#endif
#endif /* IOATDMA_H */
diff --git a/drivers/dma/ioatdma_hw.h b/drivers/dma/ioatdma_hw.h
index 9e7434e..dd470fa 100644
--- a/drivers/dma/ioatdma_hw.h
+++ b/drivers/dma/ioatdma_hw.h
@@ -1,5 +1,5 @@
/*
- * Copyright(c) 2004 - 2006 Intel Corporation. All rights reserved.
+ * Copyright(c) 2004 - 2007 Intel Corporation. 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
@@ -22,12 +22,19 @@
#define _IOAT_HW_H_
/* PCI Configuration Space Values */
-#define IOAT_PCI_VID 0x8086
-#define IOAT_PCI_DID 0x1A38
-#define IOAT_PCI_RID 0x00
-#define IOAT_PCI_SVID 0x8086
-#define IOAT_PCI_SID 0x8086
-#define IOAT_VER_1_2 0x12 /* Version 1.2 */
+#define IOAT_PCI_VID 0x8086
+
+/* CB device ID's */
+#define IOAT_PCI_DID_5000 0x1A38
+#define IOAT_PCI_DID_CNB 0x360B
+#define IOAT_PCI_DID_SCNB 0x65FF
+#define IOAT_PCI_DID_SNB 0x402F
+
+#define IOAT_PCI_RID 0x00
+#define IOAT_PCI_SVID 0x8086
+#define IOAT_PCI_SID 0x8086
+#define IOAT_VER_1_2 0x12 /* Version 1.2 */
+#define IOAT_VER_2_0 0x20 /* Version 2.0 */
struct ioat_dma_descriptor {
uint32_t size;
@@ -47,6 +54,16 @@
#define IOAT_DMA_DESCRIPTOR_CTL_CP_STS 0x00000008
#define IOAT_DMA_DESCRIPTOR_CTL_FRAME 0x00000010
#define IOAT_DMA_DESCRIPTOR_NUL 0x00000020
-#define IOAT_DMA_DESCRIPTOR_OPCODE 0xFF000000
+#define IOAT_DMA_DESCRIPTOR_CTL_SP_BRK 0x00000040
+#define IOAT_DMA_DESCRIPTOR_CTL_DP_BRK 0x00000080
+#define IOAT_DMA_DESCRIPTOR_CTL_BNDL 0x00000100
+#define IOAT_DMA_DESCRIPTOR_CTL_DCA 0x00000200
+#define IOAT_DMA_DESCRIPTOR_CTL_BUFHINT 0x00000400
+
+#define IOAT_DMA_DESCRIPTOR_CTL_OPCODE_CONTEXT 0xFF000000
+#define IOAT_DMA_DESCRIPTOR_CTL_OPCODE_DMA 0x00000000
+
+#define IOAT_DMA_DESCRIPTOR_CTL_CONTEXT_DCA 0x00000001
+#define IOAT_DMA_DESCRIPTOR_CTL_OPCODE_MASK 0xFF000000
#endif
diff --git a/drivers/dma/ioatdma_registers.h b/drivers/dma/ioatdma_registers.h
index baaab5e..9832d7e 100644
--- a/drivers/dma/ioatdma_registers.h
+++ b/drivers/dma/ioatdma_registers.h
@@ -42,26 +42,25 @@
#define IOAT_INTRCTRL_MASTER_INT_EN 0x01 /* Master Interrupt Enable */
#define IOAT_INTRCTRL_INT_STATUS 0x02 /* ATTNSTATUS -or- Channel Int */
#define IOAT_INTRCTRL_INT 0x04 /* INT_STATUS -and- MASTER_INT_EN */
-#define IOAT_INTRCTRL_MSIX_VECTOR_CONTROL 0x08 /* Enable all MSI-X vectors */
+#define IOAT_INTRCTRL_MSIX_VECTOR_CONTROL 0x08 /* Enable all MSI-X vectors */
#define IOAT_ATTNSTATUS_OFFSET 0x04 /* Each bit is a channel */
#define IOAT_VER_OFFSET 0x08 /* 8-bit */
#define IOAT_VER_MAJOR_MASK 0xF0
#define IOAT_VER_MINOR_MASK 0x0F
-#define GET_IOAT_VER_MAJOR(x) ((x) & IOAT_VER_MAJOR_MASK)
+#define GET_IOAT_VER_MAJOR(x) (((x) & IOAT_VER_MAJOR_MASK) >> 4)
#define GET_IOAT_VER_MINOR(x) ((x) & IOAT_VER_MINOR_MASK)
#define IOAT_PERPORTOFFSET_OFFSET 0x0A /* 16-bit */
#define IOAT_INTRDELAY_OFFSET 0x0C /* 16-bit */
#define IOAT_INTRDELAY_INT_DELAY_MASK 0x3FFF /* Interrupt Delay Time */
-#define IOAT_INTRDELAY_COALESE_SUPPORT 0x8000 /* Interrupt Coalesing Supported */
+#define IOAT_INTRDELAY_COALESE_SUPPORT 0x8000 /* Interrupt Coalescing Supported */
#define IOAT_DEVICE_STATUS_OFFSET 0x0E /* 16-bit */
#define IOAT_DEVICE_STATUS_DEGRADED_MODE 0x0001
-
#define IOAT_CHANNEL_MMIO_SIZE 0x80 /* Each Channel MMIO space is this size */
/* DMA Channel Registers */
@@ -74,25 +73,101 @@
#define IOAT_CHANCTRL_ERR_COMPLETION_EN 0x0004
#define IOAT_CHANCTRL_INT_DISABLE 0x0001
-#define IOAT_DMA_COMP_OFFSET 0x02 /* 16-bit DMA channel compatability */
-#define IOAT_DMA_COMP_V1 0x0001 /* Compatability with DMA version 1 */
+#define IOAT_DMA_COMP_OFFSET 0x02 /* 16-bit DMA channel compatibility */
+#define IOAT_DMA_COMP_V1 0x0001 /* Compatibility with DMA version 1 */
+#define IOAT_DMA_COMP_V2 0x0002 /* Compatibility with DMA version 2 */
-#define IOAT_CHANSTS_OFFSET 0x04 /* 64-bit Channel Status Register */
-#define IOAT_CHANSTS_OFFSET_LOW 0x04
-#define IOAT_CHANSTS_OFFSET_HIGH 0x08
-#define IOAT_CHANSTS_COMPLETED_DESCRIPTOR_ADDR 0xFFFFFFFFFFFFFFC0UL
+
+#define IOAT1_CHANSTS_OFFSET 0x04 /* 64-bit Channel Status Register */
+#define IOAT2_CHANSTS_OFFSET 0x08 /* 64-bit Channel Status Register */
+#define IOAT_CHANSTS_OFFSET(ver) ((ver) < IOAT_VER_2_0 \
+ ? IOAT1_CHANSTS_OFFSET : IOAT2_CHANSTS_OFFSET)
+#define IOAT1_CHANSTS_OFFSET_LOW 0x04
+#define IOAT2_CHANSTS_OFFSET_LOW 0x08
+#define IOAT_CHANSTS_OFFSET_LOW(ver) ((ver) < IOAT_VER_2_0 \
+ ? IOAT1_CHANSTS_OFFSET_LOW : IOAT2_CHANSTS_OFFSET_LOW)
+#define IOAT1_CHANSTS_OFFSET_HIGH 0x08
+#define IOAT2_CHANSTS_OFFSET_HIGH 0x0C
+#define IOAT_CHANSTS_OFFSET_HIGH(ver) ((ver) < IOAT_VER_2_0 \
+ ? IOAT1_CHANSTS_OFFSET_HIGH : IOAT2_CHANSTS_OFFSET_HIGH)
+#define IOAT_CHANSTS_COMPLETED_DESCRIPTOR_ADDR ~0x3F
#define IOAT_CHANSTS_SOFT_ERR 0x0000000000000010
+#define IOAT_CHANSTS_UNAFFILIATED_ERR 0x0000000000000008
#define IOAT_CHANSTS_DMA_TRANSFER_STATUS 0x0000000000000007
#define IOAT_CHANSTS_DMA_TRANSFER_STATUS_ACTIVE 0x0
#define IOAT_CHANSTS_DMA_TRANSFER_STATUS_DONE 0x1
#define IOAT_CHANSTS_DMA_TRANSFER_STATUS_SUSPENDED 0x2
#define IOAT_CHANSTS_DMA_TRANSFER_STATUS_HALTED 0x3
-#define IOAT_CHAINADDR_OFFSET 0x0C /* 64-bit Descriptor Chain Address Register */
-#define IOAT_CHAINADDR_OFFSET_LOW 0x0C
-#define IOAT_CHAINADDR_OFFSET_HIGH 0x10
-#define IOAT_CHANCMD_OFFSET 0x14 /* 8-bit DMA Channel Command Register */
+
+#define IOAT_CHAN_DMACOUNT_OFFSET 0x06 /* 16-bit DMA Count register */
+
+#define IOAT_DCACTRL_OFFSET 0x30 /* 32 bit Direct Cache Access Control Register */
+#define IOAT_DCACTRL_CMPL_WRITE_ENABLE 0x10000
+#define IOAT_DCACTRL_TARGET_CPU_MASK 0xFFFF /* APIC ID */
+
+/* CB DCA Memory Space Registers */
+#define IOAT_DCAOFFSET_OFFSET 0x14
+/* CB_BAR + IOAT_DCAOFFSET value */
+#define IOAT_DCA_VER_OFFSET 0x00
+#define IOAT_DCA_VER_MAJOR_MASK 0xF0
+#define IOAT_DCA_VER_MINOR_MASK 0x0F
+
+#define IOAT_DCA_COMP_OFFSET 0x02
+#define IOAT_DCA_COMP_V1 0x1
+
+#define IOAT_FSB_CAPABILITY_OFFSET 0x04
+#define IOAT_FSB_CAPABILITY_PREFETCH 0x1
+
+#define IOAT_PCI_CAPABILITY_OFFSET 0x06
+#define IOAT_PCI_CAPABILITY_MEMWR 0x1
+
+#define IOAT_FSB_CAP_ENABLE_OFFSET 0x08
+#define IOAT_FSB_CAP_ENABLE_PREFETCH 0x1
+
+#define IOAT_PCI_CAP_ENABLE_OFFSET 0x0A
+#define IOAT_PCI_CAP_ENABLE_MEMWR 0x1
+
+#define IOAT_APICID_TAG_MAP_OFFSET 0x0C
+#define IOAT_APICID_TAG_MAP_TAG0 0x0000000F
+#define IOAT_APICID_TAG_MAP_TAG0_SHIFT 0
+#define IOAT_APICID_TAG_MAP_TAG1 0x000000F0
+#define IOAT_APICID_TAG_MAP_TAG1_SHIFT 4
+#define IOAT_APICID_TAG_MAP_TAG2 0x00000F00
+#define IOAT_APICID_TAG_MAP_TAG2_SHIFT 8
+#define IOAT_APICID_TAG_MAP_TAG3 0x0000F000
+#define IOAT_APICID_TAG_MAP_TAG3_SHIFT 12
+#define IOAT_APICID_TAG_MAP_TAG4 0x000F0000
+#define IOAT_APICID_TAG_MAP_TAG4_SHIFT 16
+#define IOAT_APICID_TAG_CB2_VALID 0x8080808080
+
+#define IOAT_DCA_GREQID_OFFSET 0x10
+#define IOAT_DCA_GREQID_SIZE 0x04
+#define IOAT_DCA_GREQID_MASK 0xFFFF
+#define IOAT_DCA_GREQID_IGNOREFUN 0x10000000
+#define IOAT_DCA_GREQID_VALID 0x20000000
+#define IOAT_DCA_GREQID_LASTID 0x80000000
+
+
+
+#define IOAT1_CHAINADDR_OFFSET 0x0C /* 64-bit Descriptor Chain Address Register */
+#define IOAT2_CHAINADDR_OFFSET 0x10 /* 64-bit Descriptor Chain Address Register */
+#define IOAT_CHAINADDR_OFFSET(ver) ((ver) < IOAT_VER_2_0 \
+ ? IOAT1_CHAINADDR_OFFSET : IOAT2_CHAINADDR_OFFSET)
+#define IOAT1_CHAINADDR_OFFSET_LOW 0x0C
+#define IOAT2_CHAINADDR_OFFSET_LOW 0x10
+#define IOAT_CHAINADDR_OFFSET_LOW(ver) ((ver) < IOAT_VER_2_0 \
+ ? IOAT1_CHAINADDR_OFFSET_LOW : IOAT2_CHAINADDR_OFFSET_LOW)
+#define IOAT1_CHAINADDR_OFFSET_HIGH 0x10
+#define IOAT2_CHAINADDR_OFFSET_HIGH 0x14
+#define IOAT_CHAINADDR_OFFSET_HIGH(ver) ((ver) < IOAT_VER_2_0 \
+ ? IOAT1_CHAINADDR_OFFSET_HIGH : IOAT2_CHAINADDR_OFFSET_HIGH)
+
+#define IOAT1_CHANCMD_OFFSET 0x14 /* 8-bit DMA Channel Command Register */
+#define IOAT2_CHANCMD_OFFSET 0x04 /* 8-bit DMA Channel Command Register */
+#define IOAT_CHANCMD_OFFSET(ver) ((ver) < IOAT_VER_2_0 \
+ ? IOAT1_CHANCMD_OFFSET : IOAT2_CHANCMD_OFFSET)
#define IOAT_CHANCMD_RESET 0x20
#define IOAT_CHANCMD_RESUME 0x10
#define IOAT_CHANCMD_ABORT 0x08
@@ -124,6 +199,7 @@
#define IOAT_CHANERR_COMPLETION_ADDR_ERR 0x1000
#define IOAT_CHANERR_INT_CONFIGURATION_ERR 0x2000
#define IOAT_CHANERR_SOFT_ERR 0x4000
+#define IOAT_CHANERR_UNAFFILIATED_ERR 0x8000
#define IOAT_CHANERR_MASK_OFFSET 0x2C /* 32-bit Channel Error Register */
diff --git a/drivers/edac/i5000_edac.c b/drivers/edac/i5000_edac.c
index 96f7e63..a1f24c4 100644
--- a/drivers/edac/i5000_edac.c
+++ b/drivers/edac/i5000_edac.c
@@ -1462,7 +1462,7 @@
*
*/
static struct pci_driver i5000_driver = {
- .name = __stringify(KBUILD_BASENAME),
+ .name = KBUILD_BASENAME,
.probe = i5000_init_one,
.remove = __devexit_p(i5000_remove_one),
.id_table = i5000_pci_tbl,
diff --git a/drivers/i2c/busses/i2c-pasemi.c b/drivers/i2c/busses/i2c-pasemi.c
index 58e3271..ca18e0b 100644
--- a/drivers/i2c/busses/i2c-pasemi.c
+++ b/drivers/i2c/busses/i2c-pasemi.c
@@ -51,6 +51,7 @@
#define MRXFIFO_DATA_M 0x000000ff
#define SMSTA_XEN 0x08000000
+#define SMSTA_MTN 0x00200000
#define CTL_MRR 0x00000400
#define CTL_MTR 0x00000200
@@ -98,6 +99,10 @@
status = reg_read(smbus, REG_SMSTA);
}
+ /* Got NACK? */
+ if (status & SMSTA_MTN)
+ return -ENXIO;
+
if (timeout < 0) {
dev_warn(&smbus->dev->dev, "Timeout, status 0x%08x\n", status);
reg_write(smbus, REG_SMSTA, status);
@@ -364,7 +369,7 @@
smbus->adapter.algo = &smbus_algorithm;
smbus->adapter.algo_data = smbus;
- /* set up the driverfs linkage to our parent device */
+ /* set up the sysfs linkage to our parent device */
smbus->adapter.dev.parent = &dev->dev;
reg_write(smbus, REG_CTL, (CTL_MTR | CTL_MRR |
diff --git a/drivers/i2c/chips/eeprom.c b/drivers/i2c/chips/eeprom.c
index d3da1fb..1a7eeeb 100644
--- a/drivers/i2c/chips/eeprom.c
+++ b/drivers/i2c/chips/eeprom.c
@@ -128,13 +128,20 @@
for (slice = off >> 5; slice <= (off + count - 1) >> 5; slice++)
eeprom_update_client(client, slice);
- /* Hide Vaio security settings to regular users (16 first bytes) */
- if (data->nature == VAIO && off < 16 && !capable(CAP_SYS_ADMIN)) {
- size_t in_row1 = 16 - off;
- in_row1 = min(in_row1, count);
- memset(buf, 0, in_row1);
- if (count - in_row1 > 0)
- memcpy(buf + in_row1, &data->data[16], count - in_row1);
+ /* Hide Vaio private settings to regular users:
+ - BIOS passwords: bytes 0x00 to 0x0f
+ - UUID: bytes 0x10 to 0x1f
+ - Serial number: 0xc0 to 0xdf */
+ if (data->nature == VAIO && !capable(CAP_SYS_ADMIN)) {
+ int i;
+
+ for (i = 0; i < count; i++) {
+ if ((off + i <= 0x1f) ||
+ (off + i >= 0xc0 && off + i <= 0xdf))
+ buf[i] = 0;
+ else
+ buf[i] = data->data[off + i];
+ }
} else {
memcpy(buf, &data->data[off], count);
}
@@ -197,14 +204,18 @@
goto exit_kfree;
/* Detect the Vaio nature of EEPROMs.
- We use the "PCG-" prefix as the signature. */
+ We use the "PCG-" or "VGN-" prefix as the signature. */
if (address == 0x57) {
- if (i2c_smbus_read_byte_data(new_client, 0x80) == 'P'
- && i2c_smbus_read_byte(new_client) == 'C'
- && i2c_smbus_read_byte(new_client) == 'G'
- && i2c_smbus_read_byte(new_client) == '-') {
+ char name[4];
+
+ name[0] = i2c_smbus_read_byte_data(new_client, 0x80);
+ name[1] = i2c_smbus_read_byte(new_client);
+ name[2] = i2c_smbus_read_byte(new_client);
+ name[3] = i2c_smbus_read_byte(new_client);
+
+ if (!memcmp(name, "PCG-", 4) || !memcmp(name, "VGN-", 4)) {
dev_info(&new_client->dev, "Vaio EEPROM detected, "
- "enabling password protection\n");
+ "enabling privacy protection\n");
data->nature = VAIO;
}
}
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 1a4e8dc..b5e13e4 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -673,7 +673,7 @@
return 0;
}
-int i2c_check_addr(struct i2c_adapter *adapter, int addr)
+static int i2c_check_addr(struct i2c_adapter *adapter, int addr)
{
int rval;
@@ -683,7 +683,6 @@
return rval;
}
-EXPORT_SYMBOL(i2c_check_addr);
int i2c_attach_client(struct i2c_client *client)
{
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index 5a15e50..c21ae20 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -38,6 +38,15 @@
static struct i2c_driver i2cdev_driver;
+/*
+ * An i2c_dev represents an i2c_adapter ... an I2C or SMBus master, not a
+ * slave (i2c_client) with which messages will be exchanged. It's coupled
+ * with a character special file which is accessed by user mode drivers.
+ *
+ * The list of i2c_dev structures is parallel to the i2c_adapter lists
+ * maintained by the driver model, and is updated using notifications
+ * delivered to the i2cdev_driver.
+ */
struct i2c_dev {
struct list_head list;
struct i2c_adapter *adap;
@@ -103,6 +112,25 @@
}
static DEVICE_ATTR(name, S_IRUGO, show_adapter_name, NULL);
+/* ------------------------------------------------------------------------- */
+
+/*
+ * After opening an instance of this character special file, a file
+ * descriptor starts out associated only with an i2c_adapter (and bus).
+ *
+ * Using the I2C_RDWR ioctl(), you can then *immediately* issue i2c_msg
+ * traffic to any devices on the bus used by that adapter. That's because
+ * the i2c_msg vectors embed all the addressing information they need, and
+ * are submitted directly to an i2c_adapter. However, SMBus-only adapters
+ * don't support that interface.
+ *
+ * To use read()/write() system calls on that file descriptor, or to use
+ * SMBus interfaces (and work with SMBus-only hosts!), you must first issue
+ * an I2C_SLAVE (or I2C_SLAVE_FORCE) ioctl. That configures an anonymous
+ * (never registered) i2c_client so it holds the addressing information
+ * needed by those system calls and by this SMBus interface.
+ */
+
static ssize_t i2cdev_read (struct file *file, char __user *buf, size_t count,
loff_t *offset)
{
@@ -154,6 +182,29 @@
return ret;
}
+/* This address checking function differs from the one in i2c-core
+ in that it considers an address with a registered device, but no
+ bounded driver, as NOT busy. */
+static int i2cdev_check_addr(struct i2c_adapter *adapter, unsigned int addr)
+{
+ struct list_head *item;
+ struct i2c_client *client;
+ int res = 0;
+
+ mutex_lock(&adapter->clist_lock);
+ list_for_each(item, &adapter->clients) {
+ client = list_entry(item, struct i2c_client, list);
+ if (client->addr == addr) {
+ if (client->driver)
+ res = -EBUSY;
+ break;
+ }
+ }
+ mutex_unlock(&adapter->clist_lock);
+
+ return res;
+}
+
static int i2cdev_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
@@ -172,11 +223,22 @@
switch ( cmd ) {
case I2C_SLAVE:
case I2C_SLAVE_FORCE:
+ /* NOTE: devices set up to work with "new style" drivers
+ * can't use I2C_SLAVE, even when the device node is not
+ * bound to a driver. Only I2C_SLAVE_FORCE will work.
+ *
+ * Setting the PEC flag here won't affect kernel drivers,
+ * which will be using the i2c_client node registered with
+ * the driver model core. Likewise, when that client has
+ * the PEC flag already set, the i2c-dev driver won't see
+ * (or use) this setting.
+ */
if ((arg > 0x3ff) ||
(((client->flags & I2C_M_TEN) == 0) && arg > 0x7f))
return -EINVAL;
- if ((cmd == I2C_SLAVE) && i2c_check_addr(client->adapter,arg))
+ if (cmd == I2C_SLAVE && i2cdev_check_addr(client->adapter, arg))
return -EBUSY;
+ /* REVISIT: address could become busy later */
client->addr = arg;
return 0;
case I2C_TENBIT:
@@ -386,6 +448,13 @@
if (!adap)
return -ENODEV;
+ /* This creates an anonymous i2c_client, which may later be
+ * pointed to some address using I2C_SLAVE or I2C_SLAVE_FORCE.
+ *
+ * This client is ** NEVER REGISTERED ** with the driver model
+ * or I2C core code!! It just holds private copies of addressing
+ * information and maybe a PEC flag.
+ */
client = kzalloc(sizeof(*client), GFP_KERNEL);
if (!client) {
i2c_put_adapter(adap);
@@ -394,7 +463,6 @@
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;
file->private_data = client;
@@ -422,6 +490,14 @@
.release = i2cdev_release,
};
+/* ------------------------------------------------------------------------- */
+
+/*
+ * The legacy "i2cdev_driver" is used primarily to get notifications when
+ * I2C adapters are added or removed, so that each one gets an i2c_dev
+ * and is thus made available to userspace driver code.
+ */
+
static struct class *i2c_dev_class;
static int i2cdev_attach_adapter(struct i2c_adapter *adap)
@@ -486,6 +562,12 @@
.detach_client = i2cdev_detach_client,
};
+/* ------------------------------------------------------------------------- */
+
+/*
+ * module load/unload record keeping
+ */
+
static int __init i2c_dev_init(void)
{
int res;
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index d1e8df1..e445fe6 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -203,10 +203,6 @@
CD-ROM drive, you can say N to all other CD-ROM options, but be sure
to say Y or M to "ISO 9660 CD-ROM file system support".
- Note that older versions of LILO (LInux LOader) cannot properly deal
- with IDE/ATAPI CD-ROMs, so install LILO 16 or higher, available from
- <http://lilo.go.dyndns.org/>.
-
To compile this driver as a module, choose M here: the
module will be called ide-cd.
diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c
index e196aef..7f5bc2e 100644
--- a/drivers/ide/cris/ide-cris.c
+++ b/drivers/ide/cris/ide-cris.c
@@ -748,8 +748,7 @@
hold = ATA_DMA2_HOLD;
break;
default:
- BUG();
- break;
+ return;
}
if (speed >= XFER_UDMA_0)
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 7550118..db22d1f 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -885,7 +885,6 @@
return do_rw_taskfile(drive, args);
} else if (rq->cmd_type == REQ_TYPE_ATA_TASK) {
u8 *args = rq->buffer;
- u8 sel;
if (!args)
goto done;
@@ -903,10 +902,7 @@
hwif->OUTB(args[3], IDE_SECTOR_REG);
hwif->OUTB(args[4], IDE_LCYL_REG);
hwif->OUTB(args[5], IDE_HCYL_REG);
- sel = (args[6] & ~0x10);
- if (drive->select.b.unit)
- sel |= 0x10;
- hwif->OUTB(sel, IDE_SELECT_REG);
+ hwif->OUTB((args[6] & 0xEF)|drive->select.all, IDE_SELECT_REG);
ide_cmd(drive, args[0], args[2], &drive_cmd_intr);
return ide_started;
} else if (rq->cmd_type == REQ_TYPE_ATA_CMD) {
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index af86433..1609b86 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -514,6 +514,7 @@
if (drive->addressing == 1) {
__u64 sectors = 0;
u32 low = 0, high = 0;
+ hwif->OUTB(drive->ctl&~0x80, IDE_CONTROL_REG);
low = ide_read_24(drive);
hwif->OUTB(drive->ctl|0x80, IDE_CONTROL_REG);
high = ide_read_24(drive);
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index ea0143e..51fca44 100644
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -1,5 +1,5 @@
/*
- * linux/drivers/ide/pci/cmd64x.c Version 1.50 May 10, 2007
+ * linux/drivers/ide/pci/cmd64x.c Version 1.51 Nov 8, 2007
*
* cmd64x.c: Enable interrupts at initialization time on Ultra/PCI machines.
* Due to massive hardware bugs, UltraDMA is only supported
@@ -339,7 +339,8 @@
u8 mrdmode = inb(hwif->dma_master + 0x01);
/* clear the interrupt bit */
- outb(mrdmode | irq_mask, hwif->dma_master + 0x01);
+ outb((mrdmode & ~(MRDMODE_INTR_CH0 | MRDMODE_INTR_CH1)) | irq_mask,
+ hwif->dma_master + 0x01);
return err;
}
diff --git a/drivers/ide/pci/cs5530.c b/drivers/ide/pci/cs5530.c
index 5994089..5476903 100644
--- a/drivers/ide/pci/cs5530.c
+++ b/drivers/ide/pci/cs5530.c
@@ -117,8 +117,7 @@
case XFER_MW_DMA_1: timings = 0x00012121; break;
case XFER_MW_DMA_2: timings = 0x00002020; break;
default:
- BUG();
- break;
+ return;
}
basereg = CS5530_BASEREG(drive->hwif);
reg = inl(basereg + 4); /* get drive0 config register */
diff --git a/drivers/ide/pci/it821x.c b/drivers/ide/pci/it821x.c
index 5c99754..99b7d76 100644
--- a/drivers/ide/pci/it821x.c
+++ b/drivers/ide/pci/it821x.c
@@ -653,8 +653,7 @@
static int __devinit it821x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
- ide_setup_pci_device(dev, &it821x_chipsets[id->driver_data]);
- return 0;
+ return ide_setup_pci_device(dev, &it821x_chipsets[id->driver_data]);
}
static const struct pci_device_id it821x_pci_tbl[] = {
diff --git a/drivers/ide/pci/jmicron.c b/drivers/ide/pci/jmicron.c
index bdf64d9..0083eaf 100644
--- a/drivers/ide/pci/jmicron.c
+++ b/drivers/ide/pci/jmicron.c
@@ -139,8 +139,7 @@
static int __devinit jmicron_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
- ide_setup_pci_device(dev, &jmicron_chipset);
- return 0;
+ return ide_setup_pci_device(dev, &jmicron_chipset);
}
/* All JMB PATA controllers have and will continue to have the same
diff --git a/drivers/ide/pci/sc1200.c b/drivers/ide/pci/sc1200.c
index 0a7b320..707d5ff 100644
--- a/drivers/ide/pci/sc1200.c
+++ b/drivers/ide/pci/sc1200.c
@@ -186,8 +186,7 @@
}
break;
default:
- BUG();
- break;
+ return;
}
if (unit == 0) { /* are we configuring drive0? */
diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c
index 6b7bb53..f6e2ab3 100644
--- a/drivers/ide/pci/sis5513.c
+++ b/drivers/ide/pci/sis5513.c
@@ -356,7 +356,6 @@
sis_program_timings(drive, speed);
break;
default:
- BUG();
break;
}
}
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index 816b531..5afdfef 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1138,6 +1138,7 @@
hwif->drives[0].autotune = IDE_TUNE_AUTO;
hwif->drives[1].autotune = IDE_TUNE_AUTO;
hwif->host_flags = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA |
+ IDE_HFLAG_PIO_NO_DOWNGRADE |
IDE_HFLAG_POST_SET_MODE;
hwif->pio_mask = ATA_PIO4;
hwif->set_pio_mode = pmac_ide_set_pio_mode;
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 02d14bf..25fd090 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -7,11 +7,6 @@
* May be copied or modified under the terms of the GNU General Public License
*/
-/*
- * This module provides support for automatic detection and
- * configuration of all PCI IDE interfaces present in a system.
- */
-
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index f0c7775..b5436ca 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -1000,6 +1000,7 @@
props->max_sge = dev->attr.max_sge_per_wr;
props->max_sge_rd = 1;
props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp;
+ props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp;
props->max_cq = dev->attr.max_cqs;
props->max_cqe = dev->attr.max_cqes_per_cq;
props->max_mr = dev->attr.max_mem_regs;
diff --git a/drivers/infiniband/hw/ehca/ehca_av.c b/drivers/infiniband/hw/ehca/ehca_av.c
index 97d1086..453eb99 100644
--- a/drivers/infiniband/hw/ehca/ehca_av.c
+++ b/drivers/infiniband/hw/ehca/ehca_av.c
@@ -50,6 +50,38 @@
static struct kmem_cache *av_cache;
+int ehca_calc_ipd(struct ehca_shca *shca, int port,
+ enum ib_rate path_rate, u32 *ipd)
+{
+ int path = ib_rate_to_mult(path_rate);
+ int link, ret;
+ struct ib_port_attr pa;
+
+ if (path_rate == IB_RATE_PORT_CURRENT) {
+ *ipd = 0;
+ return 0;
+ }
+
+ if (unlikely(path < 0)) {
+ ehca_err(&shca->ib_device, "Invalid static rate! path_rate=%x",
+ path_rate);
+ return -EINVAL;
+ }
+
+ ret = ehca_query_port(&shca->ib_device, port, &pa);
+ if (unlikely(ret < 0)) {
+ ehca_err(&shca->ib_device, "Failed to query port ret=%i", ret);
+ return ret;
+ }
+
+ link = ib_width_enum_to_int(pa.active_width) * pa.active_speed;
+
+ /* IPD = round((link / path) - 1) */
+ *ipd = ((link + (path >> 1)) / path) - 1;
+
+ return 0;
+}
+
struct ib_ah *ehca_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
{
int ret;
@@ -69,15 +101,13 @@
av->av.slid_path_bits = ah_attr->src_path_bits;
if (ehca_static_rate < 0) {
- int ah_mult = ib_rate_to_mult(ah_attr->static_rate);
- int ehca_mult =
- ib_rate_to_mult(shca->sport[ah_attr->port_num].rate );
-
- if (ah_mult >= ehca_mult)
- av->av.ipd = 0;
- else
- av->av.ipd = (ah_mult > 0) ?
- ((ehca_mult - 1) / ah_mult) : 0;
+ u32 ipd;
+ if (ehca_calc_ipd(shca, ah_attr->port_num,
+ ah_attr->static_rate, &ipd)) {
+ ret = -EINVAL;
+ goto create_ah_exit1;
+ }
+ av->av.ipd = ipd;
} else
av->av.ipd = ehca_static_rate;
diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h
index 2d660ae..87f12d4 100644
--- a/drivers/infiniband/hw/ehca/ehca_classes.h
+++ b/drivers/infiniband/hw/ehca/ehca_classes.h
@@ -95,7 +95,6 @@
struct ehca_sport {
struct ib_cq *ibcq_aqp1;
struct ib_qp *ibqp_aqp1;
- enum ib_rate rate;
enum ib_port_state port_state;
struct ehca_sma_attr saved_attr;
};
diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c
index 15806d1..5bd7b59 100644
--- a/drivers/infiniband/hw/ehca/ehca_hca.c
+++ b/drivers/infiniband/hw/ehca/ehca_hca.c
@@ -151,7 +151,6 @@
}
memset(props, 0, sizeof(struct ib_port_attr));
- props->state = rblock->state;
switch (rblock->max_mtu) {
case 0x1:
@@ -188,11 +187,20 @@
props->subnet_timeout = rblock->subnet_timeout;
props->init_type_reply = rblock->init_type_reply;
- props->active_width = IB_WIDTH_12X;
- props->active_speed = 0x1;
-
- /* at the moment (logical) link state is always LINK_UP */
- props->phys_state = 0x5;
+ if (rblock->state && rblock->phys_width) {
+ props->phys_state = rblock->phys_pstate;
+ props->state = rblock->phys_state;
+ props->active_width = rblock->phys_width;
+ props->active_speed = rblock->phys_speed;
+ } else {
+ /* old firmware releases don't report physical
+ * port info, so use default values
+ */
+ props->phys_state = 5;
+ props->state = rblock->state;
+ props->active_width = IB_WIDTH_12X;
+ props->active_speed = 0x1;
+ }
query_port1:
ehca_free_fw_ctrlblock(rblock);
diff --git a/drivers/infiniband/hw/ehca/ehca_iverbs.h b/drivers/infiniband/hw/ehca/ehca_iverbs.h
index dce503b..5485799 100644
--- a/drivers/infiniband/hw/ehca/ehca_iverbs.h
+++ b/drivers/infiniband/hw/ehca/ehca_iverbs.h
@@ -189,6 +189,9 @@
void ehca_poll_eqs(unsigned long data);
+int ehca_calc_ipd(struct ehca_shca *shca, int port,
+ enum ib_rate path_rate, u32 *ipd);
+
#ifdef CONFIG_PPC_64K_PAGES
void *ehca_alloc_fw_ctrlblock(gfp_t flags);
void ehca_free_fw_ctrlblock(void *ptr);
diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c
index c6cd38c..90d4334 100644
--- a/drivers/infiniband/hw/ehca/ehca_main.c
+++ b/drivers/infiniband/hw/ehca/ehca_main.c
@@ -327,9 +327,6 @@
shca->hw_level = ehca_hw_level;
ehca_gen_dbg(" ... hardware level=%x", shca->hw_level);
- shca->sport[0].rate = IB_RATE_30_GBPS;
- shca->sport[1].rate = IB_RATE_30_GBPS;
-
shca->hca_cap = rblock->hca_cap_indicators;
ehca_gen_dbg(" ... HCA capabilities:");
for (i = 0; i < ARRAY_SIZE(hca_cap_descr); i++)
diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c
index de18264..2e3e654 100644
--- a/drivers/infiniband/hw/ehca/ehca_qp.c
+++ b/drivers/infiniband/hw/ehca/ehca_qp.c
@@ -1196,10 +1196,6 @@
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_QKEY, 1);
}
if (attr_mask & IB_QP_AV) {
- int ah_mult = ib_rate_to_mult(attr->ah_attr.static_rate);
- int ehca_mult = ib_rate_to_mult(shca->sport[my_qp->
- init_attr.port_num].rate);
-
mqpcb->dlid = attr->ah_attr.dlid;
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_DLID, 1);
mqpcb->source_path_bits = attr->ah_attr.src_path_bits;
@@ -1207,11 +1203,12 @@
mqpcb->service_level = attr->ah_attr.sl;
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SERVICE_LEVEL, 1);
- if (ah_mult < ehca_mult)
- mqpcb->max_static_rate = (ah_mult > 0) ?
- ((ehca_mult - 1) / ah_mult) : 0;
- else
- mqpcb->max_static_rate = 0;
+ if (ehca_calc_ipd(shca, my_qp->init_attr.port_num,
+ attr->ah_attr.static_rate,
+ &mqpcb->max_static_rate)) {
+ ret = -EINVAL;
+ goto modify_qp_exit2;
+ }
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_MAX_STATIC_RATE, 1);
/*
@@ -1280,10 +1277,6 @@
(MQPCB_MASK_RDMA_ATOMIC_OUTST_DEST_QP, 1);
}
if (attr_mask & IB_QP_ALT_PATH) {
- int ah_mult = ib_rate_to_mult(attr->alt_ah_attr.static_rate);
- int ehca_mult = ib_rate_to_mult(
- shca->sport[my_qp->init_attr.port_num].rate);
-
if (attr->alt_port_num < 1
|| attr->alt_port_num > shca->num_ports) {
ret = -EINVAL;
@@ -1309,10 +1302,12 @@
mqpcb->source_path_bits_al = attr->alt_ah_attr.src_path_bits;
mqpcb->service_level_al = attr->alt_ah_attr.sl;
- if (ah_mult > 0 && ah_mult < ehca_mult)
- mqpcb->max_static_rate_al = (ehca_mult - 1) / ah_mult;
- else
- mqpcb->max_static_rate_al = 0;
+ if (ehca_calc_ipd(shca, my_qp->init_attr.port_num,
+ attr->alt_ah_attr.static_rate,
+ &mqpcb->max_static_rate_al)) {
+ ret = -EINVAL;
+ goto modify_qp_exit2;
+ }
/* OpenIB doesn't support alternate retry counts - copy them */
mqpcb->retry_count_al = mqpcb->retry_count;
diff --git a/drivers/infiniband/hw/ehca/hipz_hw.h b/drivers/infiniband/hw/ehca/hipz_hw.h
index d9739e5..485b840 100644
--- a/drivers/infiniband/hw/ehca/hipz_hw.h
+++ b/drivers/infiniband/hw/ehca/hipz_hw.h
@@ -402,7 +402,11 @@
u64 max_msg_sz;
u32 max_mtu;
u32 vl_cap;
- u8 reserved2[1900];
+ u32 phys_pstate;
+ u32 phys_state;
+ u32 phys_speed;
+ u32 phys_width;
+ u8 reserved2[1884];
u64 guid_entries[255];
} __attribute__ ((packed));
diff --git a/drivers/infiniband/hw/ipath/ipath_cq.c b/drivers/infiniband/hw/ipath/ipath_cq.c
index 645ed71..08d8ae1 100644
--- a/drivers/infiniband/hw/ipath/ipath_cq.c
+++ b/drivers/infiniband/hw/ipath/ipath_cq.c
@@ -404,7 +404,7 @@
ret = ib_copy_to_udata(udata, &offset, sizeof(offset));
if (ret)
- goto bail;
+ goto bail_free;
}
spin_lock_irq(&cq->lock);
@@ -424,10 +424,8 @@
else
n = head - tail;
if (unlikely((u32)cqe < n)) {
- spin_unlock_irq(&cq->lock);
- vfree(wc);
ret = -EOVERFLOW;
- goto bail;
+ goto bail_unlock;
}
for (n = 0; tail != head; n++) {
if (cq->ip)
@@ -459,7 +457,12 @@
}
ret = 0;
+ goto bail;
+bail_unlock:
+ spin_unlock_irq(&cq->lock);
+bail_free:
+ vfree(wc);
bail:
return ret;
}
diff --git a/drivers/infiniband/hw/ipath/ipath_rc.c b/drivers/infiniband/hw/ipath/ipath_rc.c
index 5c29b2b..120a61b0 100644
--- a/drivers/infiniband/hw/ipath/ipath_rc.c
+++ b/drivers/infiniband/hw/ipath/ipath_rc.c
@@ -959,8 +959,9 @@
/* If this is a partial ACK, reset the retransmit timer. */
if (qp->s_last != qp->s_tail) {
spin_lock(&dev->pending_lock);
- list_add_tail(&qp->timerwait,
- &dev->pending[dev->pending_index]);
+ if (list_empty(&qp->timerwait))
+ list_add_tail(&qp->timerwait,
+ &dev->pending[dev->pending_index]);
spin_unlock(&dev->pending_lock);
/*
* If we get a partial ACK for a resent operation,
diff --git a/drivers/isdn/sc/card.h b/drivers/isdn/sc/card.h
index 5992f63..0120bcf 100644
--- a/drivers/isdn/sc/card.h
+++ b/drivers/isdn/sc/card.h
@@ -109,7 +109,7 @@
int get_card_from_id(int driver);
int indicate_status(int card, int event, ulong Channel, char *Data);
irqreturn_t interrupt_handler(int interrupt, void *cardptr);
-int sndpkt(int devId, int channel, struct sk_buff *data);
+int sndpkt(int devId, int channel, int ack, struct sk_buff *data);
void rcvpkt(int card, RspMessage *rcvmsg);
int command(isdn_ctrl *cmd);
int reset(int card);
diff --git a/drivers/isdn/sc/packet.c b/drivers/isdn/sc/packet.c
index 92016a2..5ff6ae8 100644
--- a/drivers/isdn/sc/packet.c
+++ b/drivers/isdn/sc/packet.c
@@ -20,7 +20,7 @@
#include "message.h"
#include "card.h"
-int sndpkt(int devId, int channel, struct sk_buff *data)
+int sndpkt(int devId, int channel, int ack, struct sk_buff *data)
{
LLData ReqLnkWrite;
int status;
diff --git a/drivers/isdn/sc/shmem.c b/drivers/isdn/sc/shmem.c
index e0331e0..712220c 100644
--- a/drivers/isdn/sc/shmem.c
+++ b/drivers/isdn/sc/shmem.c
@@ -50,7 +50,7 @@
outb(((sc_adapter[card]->shmem_magic + ch * SRAM_PAGESIZE) >> 14) | 0x80,
sc_adapter[card]->ioport[sc_adapter[card]->shmem_pgport]);
- memcpy_toio(sc_adapter[card]->rambase + dest_rem, src, n);
+ memcpy_toio((void __iomem *)(sc_adapter[card]->rambase + dest_rem), src, n);
spin_unlock_irqrestore(&sc_adapter[card]->lock, flags);
pr_debug("%s: set page to %#x\n",sc_adapter[card]->devicename,
((sc_adapter[card]->shmem_magic + ch * SRAM_PAGESIZE)>>14)|0x80);
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c
index 9d716fa..3b92a61 100644
--- a/drivers/lguest/lguest_user.c
+++ b/drivers/lguest/lguest_user.c
@@ -184,7 +184,7 @@
free_regs:
free_page(lg->regs_page);
release_guest:
- memset(lg, 0, sizeof(*lg));
+ kfree(lg);
unlock:
mutex_unlock(&lguest_lock);
return err;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 1cfc984..a5aad8c 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -688,7 +688,8 @@
}
static struct dma_async_tx_descriptor *
-ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx)
+ops_run_biodrain(struct stripe_head *sh, struct dma_async_tx_descriptor *tx,
+ unsigned long pending)
{
int disks = sh->disks;
int pd_idx = sh->pd_idx, i;
@@ -696,7 +697,7 @@
/* check if prexor is active which means only process blocks
* that are part of a read-modify-write (Wantprexor)
*/
- int prexor = test_bit(STRIPE_OP_PREXOR, &sh->ops.pending);
+ int prexor = test_bit(STRIPE_OP_PREXOR, &pending);
pr_debug("%s: stripe %llu\n", __FUNCTION__,
(unsigned long long)sh->sector);
@@ -773,7 +774,8 @@
}
static void
-ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx)
+ops_run_postxor(struct stripe_head *sh, struct dma_async_tx_descriptor *tx,
+ unsigned long pending)
{
/* kernel stack size limits the total number of disks */
int disks = sh->disks;
@@ -781,7 +783,7 @@
int count = 0, pd_idx = sh->pd_idx, i;
struct page *xor_dest;
- int prexor = test_bit(STRIPE_OP_PREXOR, &sh->ops.pending);
+ int prexor = test_bit(STRIPE_OP_PREXOR, &pending);
unsigned long flags;
dma_async_tx_callback callback;
@@ -808,7 +810,7 @@
}
/* check whether this postxor is part of a write */
- callback = test_bit(STRIPE_OP_BIODRAIN, &sh->ops.pending) ?
+ callback = test_bit(STRIPE_OP_BIODRAIN, &pending) ?
ops_complete_write : ops_complete_postxor;
/* 1/ if we prexor'd then the dest is reused as a source
@@ -896,12 +898,12 @@
tx = ops_run_prexor(sh, tx);
if (test_bit(STRIPE_OP_BIODRAIN, &pending)) {
- tx = ops_run_biodrain(sh, tx);
+ tx = ops_run_biodrain(sh, tx, pending);
overlap_clear++;
}
if (test_bit(STRIPE_OP_POSTXOR, &pending))
- ops_run_postxor(sh, tx);
+ ops_run_postxor(sh, tx, pending);
if (test_bit(STRIPE_OP_CHECK, &pending))
ops_run_check(sh);
diff --git a/drivers/misc/ioc4.c b/drivers/misc/ioc4.c
index 6a5a05d..05172d2 100644
--- a/drivers/misc/ioc4.c
+++ b/drivers/misc/ioc4.c
@@ -244,10 +244,11 @@
idd->idd_pdev->bus->number == pdev->bus->number &&
3 == PCI_SLOT(pdev->devfn))
found = 1;
- pci_dev_put(pdev);
} while (pdev && !found);
- if (NULL != pdev)
+ if (NULL != pdev) {
+ pci_dev_put(pdev);
return IOC4_VARIANT_IO9;
+ }
/* IO10: Look for a Vitesse VSC 7174 at the same bus and slot 3. */
pdev = NULL;
@@ -258,10 +259,11 @@
idd->idd_pdev->bus->number == pdev->bus->number &&
3 == PCI_SLOT(pdev->devfn))
found = 1;
- pci_dev_put(pdev);
} while (pdev && !found);
- if (NULL != pdev)
+ if (NULL != pdev) {
+ pci_dev_put(pdev);
return IOC4_VARIANT_IO10;
+ }
/* PCI-RT: No SCSI/SATA controller will be present */
return IOC4_VARIANT_PCI_RT;
diff --git a/drivers/net/arm/ep93xx_eth.c b/drivers/net/arm/ep93xx_eth.c
index 7f016f3..91a6590 100644
--- a/drivers/net/arm/ep93xx_eth.c
+++ b/drivers/net/arm/ep93xx_eth.c
@@ -417,7 +417,7 @@
if (status & REG_INTSTS_RX) {
spin_lock(&ep->rx_lock);
- if (likely(__netif_rx_schedule_prep(dev, &ep->napi))) {
+ if (likely(netif_rx_schedule_prep(dev, &ep->napi))) {
wrl(ep, REG_INTEN, REG_INTEN_TX);
__netif_rx_schedule(dev, &ep->napi);
}
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index a198404..423298c 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1847,9 +1847,9 @@
*/
void bond_destroy(struct bonding *bond)
{
- unregister_netdevice(bond->dev);
bond_deinit(bond->dev);
bond_destroy_sysfs_entry(bond);
+ unregister_netdevice(bond->dev);
}
/*
@@ -4475,8 +4475,8 @@
bond_mc_list_destroy(bond);
/* Release the bonded slaves */
bond_release_all(bond_dev);
- unregister_netdevice(bond_dev);
bond_deinit(bond_dev);
+ unregister_netdevice(bond_dev);
}
#ifdef CONFIG_PROC_FS
diff --git a/drivers/net/chelsio/sge.c b/drivers/net/chelsio/sge.c
index ffa7e64..4436662 100644
--- a/drivers/net/chelsio/sge.c
+++ b/drivers/net/chelsio/sge.c
@@ -1379,11 +1379,11 @@
}
__skb_pull(skb, sizeof(*p));
- skb->dev->last_rx = jiffies;
st = per_cpu_ptr(sge->port_stats[p->iff], smp_processor_id());
st->rx_packets++;
skb->protocol = eth_type_trans(skb, adapter->port[p->iff].dev);
+ skb->dev->last_rx = jiffies;
if ((adapter->flags & RX_CSUM_ENABLED) && p->csum == 0xffff &&
skb->protocol == htons(ETH_P_IP) &&
(skb->data[9] == IPPROTO_TCP || skb->data[9] == IPPROTO_UDP)) {
diff --git a/drivers/net/cris/eth_v10.c b/drivers/net/cris/eth_v10.c
index edd6828..917b7b4 100644
--- a/drivers/net/cris/eth_v10.c
+++ b/drivers/net/cris/eth_v10.c
@@ -250,6 +250,7 @@
#include <asm/system.h>
#include <asm/ethernet.h>
#include <asm/cache.h>
+#include <asm/arch/io_interface_mux.h>
//#define ETHDEBUG
#define D(x)
@@ -279,6 +280,9 @@
* by this lock as well.
*/
spinlock_t lock;
+
+ spinlock_t led_lock; /* Protect LED state */
+ spinlock_t transceiver_lock; /* Protect transceiver state. */
};
typedef struct etrax_eth_descr
@@ -295,8 +299,6 @@
void (*check_duplex)(struct net_device* dev);
};
-struct transceiver_ops* transceiver;
-
/* Duplex settings */
enum duplex
{
@@ -307,7 +309,7 @@
/* Dma descriptors etc. */
-#define MAX_MEDIA_DATA_SIZE 1518
+#define MAX_MEDIA_DATA_SIZE 1522
#define MIN_PACKET_LEN 46
#define ETHER_HEAD_LEN 14
@@ -332,8 +334,8 @@
/*Intel LXT972A specific*/
#define MDIO_INT_STATUS_REG_2 0x0011
-#define MDIO_INT_FULL_DUPLEX_IND ( 1 << 9 )
-#define MDIO_INT_SPEED ( 1 << 14 )
+#define MDIO_INT_FULL_DUPLEX_IND (1 << 9)
+#define MDIO_INT_SPEED (1 << 14)
/* Network flash constants */
#define NET_FLASH_TIME (HZ/50) /* 20 ms */
@@ -344,8 +346,8 @@
#define NO_NETWORK_ACTIVITY 0
#define NETWORK_ACTIVITY 1
-#define NBR_OF_RX_DESC 64
-#define NBR_OF_TX_DESC 256
+#define NBR_OF_RX_DESC 32
+#define NBR_OF_TX_DESC 16
/* Large packets are sent directly to upper layers while small packets are */
/* copied (to reduce memory waste). The following constant decides the breakpoint */
@@ -367,7 +369,6 @@
static etrax_eth_descr *myNextRxDesc; /* Points to the next descriptor to
to be processed */
static etrax_eth_descr *myLastRxDesc; /* The last processed descriptor */
-static etrax_eth_descr *myPrevRxDesc; /* The descriptor right before myNextRxDesc */
static etrax_eth_descr RxDescList[NBR_OF_RX_DESC] __attribute__ ((aligned(32)));
@@ -377,7 +378,6 @@
static etrax_eth_descr TxDescList[NBR_OF_TX_DESC] __attribute__ ((aligned(32)));
static unsigned int network_rec_config_shadow = 0;
-static unsigned int mdio_phy_addr; /* Transciever address */
static unsigned int network_tr_ctrl_shadow = 0;
@@ -411,7 +411,7 @@
static void e100_tx_timeout(struct net_device *dev);
static struct net_device_stats *e100_get_stats(struct net_device *dev);
static void set_multicast_list(struct net_device *dev);
-static void e100_hardware_send_packet(char *buf, int length);
+static void e100_hardware_send_packet(struct net_local* np, char *buf, int length);
static void update_rx_stats(struct net_device_stats *);
static void update_tx_stats(struct net_device_stats *);
static int e100_probe_transceiver(struct net_device* dev);
@@ -434,7 +434,10 @@
static void e100_set_network_leds(int active);
static const struct ethtool_ops e100_ethtool_ops;
-
+#if defined(CONFIG_ETRAX_NO_PHY)
+static void dummy_check_speed(struct net_device* dev);
+static void dummy_check_duplex(struct net_device* dev);
+#else
static void broadcom_check_speed(struct net_device* dev);
static void broadcom_check_duplex(struct net_device* dev);
static void tdk_check_speed(struct net_device* dev);
@@ -443,16 +446,28 @@
static void intel_check_duplex(struct net_device* dev);
static void generic_check_speed(struct net_device* dev);
static void generic_check_duplex(struct net_device* dev);
+#endif
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void e100_netpoll(struct net_device* dev);
+#endif
+
+static int autoneg_normal = 1;
struct transceiver_ops transceivers[] =
{
+#if defined(CONFIG_ETRAX_NO_PHY)
+ {0x0000, dummy_check_speed, dummy_check_duplex} /* Dummy */
+#else
{0x1018, broadcom_check_speed, broadcom_check_duplex}, /* Broadcom */
{0xC039, tdk_check_speed, tdk_check_duplex}, /* TDK 2120 */
{0x039C, tdk_check_speed, tdk_check_duplex}, /* TDK 2120C */
{0x04de, intel_check_speed, intel_check_duplex}, /* Intel LXT972A*/
{0x0000, generic_check_speed, generic_check_duplex} /* Generic, must be last */
+#endif
};
+struct transceiver_ops* transceiver = &transceivers[0];
+
#define tx_done(dev) (*R_DMA_CH0_CMD == 0)
/*
@@ -471,14 +486,22 @@
int i, err;
printk(KERN_INFO
- "ETRAX 100LX 10/100MBit ethernet v2.0 (c) 2000-2003 Axis Communications AB\n");
+ "ETRAX 100LX 10/100MBit ethernet v2.0 (c) 1998-2007 Axis Communications AB\n");
+
+ if (cris_request_io_interface(if_eth, cardname)) {
+ printk(KERN_CRIT "etrax_ethernet_init failed to get IO interface\n");
+ return -EBUSY;
+ }
dev = alloc_etherdev(sizeof(struct net_local));
- np = dev->priv;
-
if (!dev)
return -ENOMEM;
+ np = netdev_priv(dev);
+
+ /* we do our own locking */
+ dev->features |= NETIF_F_LLTX;
+
dev->base_addr = (unsigned int)R_NETWORK_SA_0; /* just to have something to show */
/* now setup our etrax specific stuff */
@@ -498,14 +521,22 @@
dev->do_ioctl = e100_ioctl;
dev->set_config = e100_set_config;
dev->tx_timeout = e100_tx_timeout;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ dev->poll_controller = e100_netpoll;
+#endif
+
+ spin_lock_init(&np->lock);
+ spin_lock_init(&np->led_lock);
+ spin_lock_init(&np->transceiver_lock);
/* Initialise the list of Etrax DMA-descriptors */
/* Initialise receive descriptors */
for (i = 0; i < NBR_OF_RX_DESC; i++) {
- /* Allocate two extra cachelines to make sure that buffer used by DMA
- * does not share cacheline with any other data (to avoid cache bug)
+ /* Allocate two extra cachelines to make sure that buffer used
+ * by DMA does not share cacheline with any other data (to
+ * avoid cache bug)
*/
RxDescList[i].skb = dev_alloc_skb(MAX_MEDIA_DATA_SIZE + 2 * L1_CACHE_BYTES);
if (!RxDescList[i].skb)
@@ -541,7 +572,6 @@
myNextRxDesc = &RxDescList[0];
myLastRxDesc = &RxDescList[NBR_OF_RX_DESC - 1];
- myPrevRxDesc = &RxDescList[NBR_OF_RX_DESC - 1];
myFirstTxDesc = &TxDescList[0];
myNextTxDesc = &TxDescList[0];
myLastTxDesc = &TxDescList[NBR_OF_TX_DESC - 1];
@@ -562,10 +592,11 @@
current_speed = 10;
current_speed_selection = 0; /* Auto */
speed_timer.expires = jiffies + NET_LINK_UP_CHECK_INTERVAL;
- duplex_timer.data = (unsigned long)dev;
+ speed_timer.data = (unsigned long)dev;
speed_timer.function = e100_check_speed;
clear_led_timer.function = e100_clear_network_leds;
+ clear_led_timer.data = (unsigned long)dev;
full_duplex = 0;
current_duplex = autoneg;
@@ -574,7 +605,6 @@
duplex_timer.function = e100_check_duplex;
/* Initialize mii interface */
- np->mii_if.phy_id = mdio_phy_addr;
np->mii_if.phy_id_mask = 0x1f;
np->mii_if.reg_num_mask = 0x1f;
np->mii_if.dev = dev;
@@ -585,6 +615,9 @@
/* unwanted addresses are matched */
*R_NETWORK_GA_0 = 0x00000000;
*R_NETWORK_GA_1 = 0x00000000;
+
+ /* Initialize next time the led can flash */
+ led_next_time = jiffies;
return 0;
}
@@ -595,9 +628,9 @@
static int
e100_set_mac_address(struct net_device *dev, void *p)
{
- struct net_local *np = (struct net_local *)dev->priv;
+ struct net_local *np = netdev_priv(dev);
struct sockaddr *addr = p;
- int i;
+ DECLARE_MAC_BUF(mac);
spin_lock(&np->lock); /* preemption protection */
@@ -686,6 +719,25 @@
goto grace_exit2;
}
+ /*
+ * Always allocate the DMA channels after the IRQ,
+ * and clean up on failure.
+ */
+
+ if (cris_request_dma(NETWORK_TX_DMA_NBR,
+ cardname,
+ DMA_VERBOSE_ON_ERROR,
+ dma_eth)) {
+ goto grace_exit3;
+ }
+
+ if (cris_request_dma(NETWORK_RX_DMA_NBR,
+ cardname,
+ DMA_VERBOSE_ON_ERROR,
+ dma_eth)) {
+ goto grace_exit4;
+ }
+
/* give the HW an idea of what MAC address we want */
*R_NETWORK_SA_0 = dev->dev_addr[0] | (dev->dev_addr[1] << 8) |
@@ -700,6 +752,7 @@
*R_NETWORK_REC_CONFIG = 0xd; /* broadcast rec, individ. rec, ma0 enabled */
#else
+ SETS(network_rec_config_shadow, R_NETWORK_REC_CONFIG, max_size, size1522);
SETS(network_rec_config_shadow, R_NETWORK_REC_CONFIG, broadcast, receive);
SETS(network_rec_config_shadow, R_NETWORK_REC_CONFIG, ma0, enable);
SETF(network_rec_config_shadow, R_NETWORK_REC_CONFIG, duplex, full_duplex);
@@ -719,8 +772,7 @@
SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, crc, enable);
*R_NETWORK_TR_CTRL = network_tr_ctrl_shadow;
- save_flags(flags);
- cli();
+ local_irq_save(flags);
/* enable the irq's for ethernet DMA */
@@ -752,12 +804,13 @@
*R_DMA_CH0_FIRST = 0;
*R_DMA_CH0_DESCR = virt_to_phys(myLastTxDesc);
+ netif_start_queue(dev);
- restore_flags(flags);
+ local_irq_restore(flags);
/* Probe for transceiver */
if (e100_probe_transceiver(dev))
- goto grace_exit3;
+ goto grace_exit5;
/* Start duplex/speed timers */
add_timer(&speed_timer);
@@ -766,10 +819,14 @@
/* We are now ready to accept transmit requeusts from
* the queueing layer of the networking.
*/
- netif_start_queue(dev);
+ netif_carrier_on(dev);
return 0;
+grace_exit5:
+ cris_free_dma(NETWORK_RX_DMA_NBR, cardname);
+grace_exit4:
+ cris_free_dma(NETWORK_TX_DMA_NBR, cardname);
grace_exit3:
free_irq(NETWORK_STATUS_IRQ_NBR, (void *)dev);
grace_exit2:
@@ -780,12 +837,20 @@
return -EAGAIN;
}
-
+#if defined(CONFIG_ETRAX_NO_PHY)
+static void
+dummy_check_speed(struct net_device* dev)
+{
+ current_speed = 100;
+}
+#else
static void
generic_check_speed(struct net_device* dev)
{
unsigned long data;
- data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_ADVERTISE);
+ struct net_local *np = netdev_priv(dev);
+
+ data = e100_get_mdio_reg(dev, np->mii_if.phy_id, MII_ADVERTISE);
if ((data & ADVERTISE_100FULL) ||
(data & ADVERTISE_100HALF))
current_speed = 100;
@@ -797,7 +862,10 @@
tdk_check_speed(struct net_device* dev)
{
unsigned long data;
- data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_TDK_DIAGNOSTIC_REG);
+ struct net_local *np = netdev_priv(dev);
+
+ data = e100_get_mdio_reg(dev, np->mii_if.phy_id,
+ MDIO_TDK_DIAGNOSTIC_REG);
current_speed = (data & MDIO_TDK_DIAGNOSTIC_RATE ? 100 : 10);
}
@@ -805,7 +873,10 @@
broadcom_check_speed(struct net_device* dev)
{
unsigned long data;
- data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_AUX_CTRL_STATUS_REG);
+ struct net_local *np = netdev_priv(dev);
+
+ data = e100_get_mdio_reg(dev, np->mii_if.phy_id,
+ MDIO_AUX_CTRL_STATUS_REG);
current_speed = (data & MDIO_BC_SPEED ? 100 : 10);
}
@@ -813,46 +884,62 @@
intel_check_speed(struct net_device* dev)
{
unsigned long data;
- data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_INT_STATUS_REG_2);
+ struct net_local *np = netdev_priv(dev);
+
+ data = e100_get_mdio_reg(dev, np->mii_if.phy_id,
+ MDIO_INT_STATUS_REG_2);
current_speed = (data & MDIO_INT_SPEED ? 100 : 10);
}
-
+#endif
static void
e100_check_speed(unsigned long priv)
{
struct net_device* dev = (struct net_device*)priv;
+ struct net_local *np = netdev_priv(dev);
static int led_initiated = 0;
unsigned long data;
int old_speed = current_speed;
- data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_BMSR);
+ spin_lock(&np->transceiver_lock);
+
+ data = e100_get_mdio_reg(dev, np->mii_if.phy_id, MII_BMSR);
if (!(data & BMSR_LSTATUS)) {
current_speed = 0;
} else {
transceiver->check_speed(dev);
}
+ spin_lock(&np->led_lock);
if ((old_speed != current_speed) || !led_initiated) {
led_initiated = 1;
e100_set_network_leds(NO_NETWORK_ACTIVITY);
+ if (current_speed)
+ netif_carrier_on(dev);
+ else
+ netif_carrier_off(dev);
}
+ spin_unlock(&np->led_lock);
/* Reinitialize the timer. */
speed_timer.expires = jiffies + NET_LINK_UP_CHECK_INTERVAL;
add_timer(&speed_timer);
+
+ spin_unlock(&np->transceiver_lock);
}
static void
e100_negotiate(struct net_device* dev)
{
- unsigned short data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_ADVERTISE);
+ struct net_local *np = netdev_priv(dev);
+ unsigned short data = e100_get_mdio_reg(dev, np->mii_if.phy_id,
+ MII_ADVERTISE);
/* Discard old speed and duplex settings */
data &= ~(ADVERTISE_100HALF | ADVERTISE_100FULL |
ADVERTISE_10HALF | ADVERTISE_10FULL);
switch (current_speed_selection) {
- case 10 :
+ case 10:
if (current_duplex == full)
data |= ADVERTISE_10FULL;
else if (current_duplex == half)
@@ -861,7 +948,7 @@
data |= ADVERTISE_10HALF | ADVERTISE_10FULL;
break;
- case 100 :
+ case 100:
if (current_duplex == full)
data |= ADVERTISE_100FULL;
else if (current_duplex == half)
@@ -870,7 +957,7 @@
data |= ADVERTISE_100HALF | ADVERTISE_100FULL;
break;
- case 0 : /* Auto */
+ case 0: /* Auto */
if (current_duplex == full)
data |= ADVERTISE_100FULL | ADVERTISE_10FULL;
else if (current_duplex == half)
@@ -880,35 +967,44 @@
ADVERTISE_100HALF | ADVERTISE_100FULL;
break;
- default : /* assume autoneg speed and duplex */
+ default: /* assume autoneg speed and duplex */
data |= ADVERTISE_10HALF | ADVERTISE_10FULL |
ADVERTISE_100HALF | ADVERTISE_100FULL;
+ break;
}
- e100_set_mdio_reg(dev, mdio_phy_addr, MII_ADVERTISE, data);
+ e100_set_mdio_reg(dev, np->mii_if.phy_id, MII_ADVERTISE, data);
/* Renegotiate with link partner */
- data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_BMCR);
+ if (autoneg_normal) {
+ data = e100_get_mdio_reg(dev, np->mii_if.phy_id, MII_BMCR);
data |= BMCR_ANENABLE | BMCR_ANRESTART;
-
- e100_set_mdio_reg(dev, mdio_phy_addr, MII_BMCR, data);
+ }
+ e100_set_mdio_reg(dev, np->mii_if.phy_id, MII_BMCR, data);
}
static void
e100_set_speed(struct net_device* dev, unsigned long speed)
{
+ struct net_local *np = netdev_priv(dev);
+
+ spin_lock(&np->transceiver_lock);
if (speed != current_speed_selection) {
current_speed_selection = speed;
e100_negotiate(dev);
}
+ spin_unlock(&np->transceiver_lock);
}
static void
e100_check_duplex(unsigned long priv)
{
struct net_device *dev = (struct net_device *)priv;
- struct net_local *np = (struct net_local *)dev->priv;
- int old_duplex = full_duplex;
+ struct net_local *np = netdev_priv(dev);
+ int old_duplex;
+
+ spin_lock(&np->transceiver_lock);
+ old_duplex = full_duplex;
transceiver->check_duplex(dev);
if (old_duplex != full_duplex) {
/* Duplex changed */
@@ -920,13 +1016,22 @@
duplex_timer.expires = jiffies + NET_DUPLEX_CHECK_INTERVAL;
add_timer(&duplex_timer);
np->mii_if.full_duplex = full_duplex;
+ spin_unlock(&np->transceiver_lock);
}
-
+#if defined(CONFIG_ETRAX_NO_PHY)
+static void
+dummy_check_duplex(struct net_device* dev)
+{
+ full_duplex = 1;
+}
+#else
static void
generic_check_duplex(struct net_device* dev)
{
unsigned long data;
- data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_ADVERTISE);
+ struct net_local *np = netdev_priv(dev);
+
+ data = e100_get_mdio_reg(dev, np->mii_if.phy_id, MII_ADVERTISE);
if ((data & ADVERTISE_10FULL) ||
(data & ADVERTISE_100FULL))
full_duplex = 1;
@@ -938,7 +1043,10 @@
tdk_check_duplex(struct net_device* dev)
{
unsigned long data;
- data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_TDK_DIAGNOSTIC_REG);
+ struct net_local *np = netdev_priv(dev);
+
+ data = e100_get_mdio_reg(dev, np->mii_if.phy_id,
+ MDIO_TDK_DIAGNOSTIC_REG);
full_duplex = (data & MDIO_TDK_DIAGNOSTIC_DPLX) ? 1 : 0;
}
@@ -946,7 +1054,10 @@
broadcom_check_duplex(struct net_device* dev)
{
unsigned long data;
- data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_AUX_CTRL_STATUS_REG);
+ struct net_local *np = netdev_priv(dev);
+
+ data = e100_get_mdio_reg(dev, np->mii_if.phy_id,
+ MDIO_AUX_CTRL_STATUS_REG);
full_duplex = (data & MDIO_BC_FULL_DUPLEX_IND) ? 1 : 0;
}
@@ -954,38 +1065,55 @@
intel_check_duplex(struct net_device* dev)
{
unsigned long data;
- data = e100_get_mdio_reg(dev, mdio_phy_addr, MDIO_INT_STATUS_REG_2);
+ struct net_local *np = netdev_priv(dev);
+
+ data = e100_get_mdio_reg(dev, np->mii_if.phy_id,
+ MDIO_INT_STATUS_REG_2);
full_duplex = (data & MDIO_INT_FULL_DUPLEX_IND) ? 1 : 0;
}
-
+#endif
static void
e100_set_duplex(struct net_device* dev, enum duplex new_duplex)
{
+ struct net_local *np = netdev_priv(dev);
+
+ spin_lock(&np->transceiver_lock);
if (new_duplex != current_duplex) {
current_duplex = new_duplex;
e100_negotiate(dev);
}
+ spin_unlock(&np->transceiver_lock);
}
static int
e100_probe_transceiver(struct net_device* dev)
{
+ int ret = 0;
+
+#if !defined(CONFIG_ETRAX_NO_PHY)
unsigned int phyid_high;
unsigned int phyid_low;
unsigned int oui;
struct transceiver_ops* ops = NULL;
+ struct net_local *np = netdev_priv(dev);
+
+ spin_lock(&np->transceiver_lock);
/* Probe MDIO physical address */
- for (mdio_phy_addr = 0; mdio_phy_addr <= 31; mdio_phy_addr++) {
- if (e100_get_mdio_reg(dev, mdio_phy_addr, MII_BMSR) != 0xffff)
+ for (np->mii_if.phy_id = 0; np->mii_if.phy_id <= 31;
+ np->mii_if.phy_id++) {
+ if (e100_get_mdio_reg(dev,
+ np->mii_if.phy_id, MII_BMSR) != 0xffff)
break;
}
- if (mdio_phy_addr == 32)
- return -ENODEV;
+ if (np->mii_if.phy_id == 32) {
+ ret = -ENODEV;
+ goto out;
+ }
/* Get manufacturer */
- phyid_high = e100_get_mdio_reg(dev, mdio_phy_addr, MII_PHYSID1);
- phyid_low = e100_get_mdio_reg(dev, mdio_phy_addr, MII_PHYSID2);
+ phyid_high = e100_get_mdio_reg(dev, np->mii_if.phy_id, MII_PHYSID1);
+ phyid_low = e100_get_mdio_reg(dev, np->mii_if.phy_id, MII_PHYSID2);
oui = (phyid_high << 6) | (phyid_low >> 10);
for (ops = &transceivers[0]; ops->oui; ops++) {
@@ -993,8 +1121,10 @@
break;
}
transceiver = ops;
-
- return 0;
+out:
+ spin_unlock(&np->transceiver_lock);
+#endif
+ return ret;
}
static int
@@ -1088,13 +1218,14 @@
static void
e100_reset_transceiver(struct net_device* dev)
{
+ struct net_local *np = netdev_priv(dev);
unsigned short cmd;
unsigned short data;
int bitCounter;
- data = e100_get_mdio_reg(dev, mdio_phy_addr, MII_BMCR);
+ data = e100_get_mdio_reg(dev, np->mii_if.phy_id, MII_BMCR);
- cmd = (MDIO_START << 14) | (MDIO_WRITE << 12) | (mdio_phy_addr << 7) | (MII_BMCR << 2);
+ cmd = (MDIO_START << 14) | (MDIO_WRITE << 12) | (np->mii_if.phy_id << 7) | (MII_BMCR << 2);
e100_send_mdio_cmd(cmd, 1);
@@ -1112,7 +1243,7 @@
static void
e100_tx_timeout(struct net_device *dev)
{
- struct net_local *np = (struct net_local *)dev->priv;
+ struct net_local *np = netdev_priv(dev);
unsigned long flags;
spin_lock_irqsave(&np->lock, flags);
@@ -1134,8 +1265,7 @@
e100_reset_transceiver(dev);
/* and get rid of the packets that never got an interrupt */
- while (myFirstTxDesc != myNextTxDesc)
- {
+ while (myFirstTxDesc != myNextTxDesc) {
dev_kfree_skb(myFirstTxDesc->skb);
myFirstTxDesc->skb = 0;
myFirstTxDesc = phys_to_virt(myFirstTxDesc->descr.next);
@@ -1161,7 +1291,7 @@
static int
e100_send_packet(struct sk_buff *skb, struct net_device *dev)
{
- struct net_local *np = (struct net_local *)dev->priv;
+ struct net_local *np = netdev_priv(dev);
unsigned char *buf = skb->data;
unsigned long flags;
@@ -1174,7 +1304,7 @@
dev->trans_start = jiffies;
- e100_hardware_send_packet(buf, skb->len);
+ e100_hardware_send_packet(np, buf, skb->len);
myNextTxDesc = phys_to_virt(myNextTxDesc->descr.next);
@@ -1197,13 +1327,15 @@
e100rxtx_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
- struct net_local *np = (struct net_local *)dev->priv;
- unsigned long irqbits = *R_IRQ_MASK2_RD;
+ struct net_local *np = netdev_priv(dev);
+ unsigned long irqbits;
- /* Disable RX/TX IRQs to avoid reentrancy */
- *R_IRQ_MASK2_CLR =
- IO_STATE(R_IRQ_MASK2_CLR, dma0_eop, clr) |
- IO_STATE(R_IRQ_MASK2_CLR, dma1_eop, clr);
+ /*
+ * Note that both rx and tx interrupts are blocked at this point,
+ * regardless of which got us here.
+ */
+
+ irqbits = *R_IRQ_MASK2_RD;
/* Handle received packets */
if (irqbits & IO_STATE(R_IRQ_MASK2_RD, dma1_eop, active)) {
@@ -1219,7 +1351,7 @@
* allocate a new buffer to put a packet in.
*/
e100_rx(dev);
- ((struct net_local *)dev->priv)->stats.rx_packets++;
+ np->stats.rx_packets++;
/* restart/continue on the channel, for safety */
*R_DMA_CH1_CMD = IO_STATE(R_DMA_CH1_CMD, cmd, restart);
/* clear dma channel 1 eop/descr irq bits */
@@ -1233,9 +1365,8 @@
}
/* Report any packets that have been sent */
- while (myFirstTxDesc != phys_to_virt(*R_DMA_CH0_FIRST) &&
- myFirstTxDesc != myNextTxDesc)
- {
+ while (virt_to_phys(myFirstTxDesc) != *R_DMA_CH0_FIRST &&
+ (netif_queue_stopped(dev) || myFirstTxDesc != myNextTxDesc)) {
np->stats.tx_bytes += myFirstTxDesc->skb->len;
np->stats.tx_packets++;
@@ -1244,18 +1375,14 @@
dev_kfree_skb_irq(myFirstTxDesc->skb);
myFirstTxDesc->skb = 0;
myFirstTxDesc = phys_to_virt(myFirstTxDesc->descr.next);
- }
-
- if (irqbits & IO_STATE(R_IRQ_MASK2_RD, dma0_eop, active)) {
- /* acknowledge the eop interrupt and wake up queue */
- *R_DMA_CH0_CLR_INTR = IO_STATE(R_DMA_CH0_CLR_INTR, clr_eop, do);
+ /* Wake up queue. */
netif_wake_queue(dev);
}
- /* Enable RX/TX IRQs again */
- *R_IRQ_MASK2_SET =
- IO_STATE(R_IRQ_MASK2_SET, dma0_eop, set) |
- IO_STATE(R_IRQ_MASK2_SET, dma1_eop, set);
+ if (irqbits & IO_STATE(R_IRQ_MASK2_RD, dma0_eop, active)) {
+ /* acknowledge the eop interrupt. */
+ *R_DMA_CH0_CLR_INTR = IO_STATE(R_DMA_CH0_CLR_INTR, clr_eop, do);
+ }
return IRQ_HANDLED;
}
@@ -1264,7 +1391,7 @@
e100nw_interrupt(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
- struct net_local *np = (struct net_local *)dev->priv;
+ struct net_local *np = netdev_priv(dev);
unsigned long irqbits = *R_IRQ_MASK0_RD;
/* check for underrun irq */
@@ -1286,7 +1413,6 @@
SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, clr_error, clr);
*R_NETWORK_TR_CTRL = network_tr_ctrl_shadow;
SETS(network_tr_ctrl_shadow, R_NETWORK_TR_CTRL, clr_error, nop);
- *R_NETWORK_TR_CTRL = IO_STATE(R_NETWORK_TR_CTRL, clr_error, clr);
np->stats.tx_errors++;
D(printk("ethernet excessive collisions!\n"));
}
@@ -1299,12 +1425,13 @@
{
struct sk_buff *skb;
int length = 0;
- struct net_local *np = (struct net_local *)dev->priv;
+ struct net_local *np = netdev_priv(dev);
unsigned char *skb_data_ptr;
#ifdef ETHDEBUG
int i;
#endif
-
+ etrax_eth_descr *prevRxDesc; /* The descriptor right before myNextRxDesc */
+ spin_lock(&np->led_lock);
if (!led_active && time_after(jiffies, led_next_time)) {
/* light the network leds depending on the current speed. */
e100_set_network_leds(NETWORK_ACTIVITY);
@@ -1314,9 +1441,10 @@
led_active = 1;
mod_timer(&clear_led_timer, jiffies + HZ/10);
}
+ spin_unlock(&np->led_lock);
length = myNextRxDesc->descr.hw_len - 4;
- ((struct net_local *)dev->priv)->stats.rx_bytes += length;
+ np->stats.rx_bytes += length;
#ifdef ETHDEBUG
printk("Got a packet of length %d:\n", length);
@@ -1336,7 +1464,7 @@
if (!skb) {
np->stats.rx_errors++;
printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
- return;
+ goto update_nextrxdesc;
}
skb_put(skb, length - ETHER_HEAD_LEN); /* allocate room for the packet body */
@@ -1354,15 +1482,15 @@
else {
/* Large packet, send directly to upper layers and allocate new
* memory (aligned to cache line boundary to avoid bug).
- * Before sending the skb to upper layers we must make sure that
- * skb->data points to the aligned start of the packet.
+ * Before sending the skb to upper layers we must make sure
+ * that skb->data points to the aligned start of the packet.
*/
int align;
struct sk_buff *new_skb = dev_alloc_skb(MAX_MEDIA_DATA_SIZE + 2 * L1_CACHE_BYTES);
if (!new_skb) {
np->stats.rx_errors++;
printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
- return;
+ goto update_nextrxdesc;
}
skb = myNextRxDesc->skb;
align = (int)phys_to_virt(myNextRxDesc->descr.buf) - (int)skb->data;
@@ -1377,9 +1505,10 @@
/* Send the packet to the upper layers */
netif_rx(skb);
+ update_nextrxdesc:
/* Prepare for next packet */
myNextRxDesc->descr.status = 0;
- myPrevRxDesc = myNextRxDesc;
+ prevRxDesc = myNextRxDesc;
myNextRxDesc = phys_to_virt(myNextRxDesc->descr.next);
rx_queue_len++;
@@ -1387,9 +1516,9 @@
/* Check if descriptors should be returned */
if (rx_queue_len == RX_QUEUE_THRESHOLD) {
flush_etrax_cache();
- myPrevRxDesc->descr.ctrl |= d_eol;
+ prevRxDesc->descr.ctrl |= d_eol;
myLastRxDesc->descr.ctrl &= ~d_eol;
- myLastRxDesc = myPrevRxDesc;
+ myLastRxDesc = prevRxDesc;
rx_queue_len = 0;
}
}
@@ -1398,7 +1527,7 @@
static int
e100_close(struct net_device *dev)
{
- struct net_local *np = (struct net_local *)dev->priv;
+ struct net_local *np = netdev_priv(dev);
printk(KERN_INFO "Closing %s.\n", dev->name);
@@ -1426,6 +1555,9 @@
free_irq(NETWORK_DMA_TX_IRQ_NBR, (void *)dev);
free_irq(NETWORK_STATUS_IRQ_NBR, (void *)dev);
+ cris_free_dma(NETWORK_TX_DMA_NBR, cardname);
+ cris_free_dma(NETWORK_RX_DMA_NBR, cardname);
+
/* Update the statistics here. */
update_rx_stats(&np->stats);
@@ -1443,18 +1575,11 @@
{
struct mii_ioctl_data *data = if_mii(ifr);
struct net_local *np = netdev_priv(dev);
+ int rc = 0;
+ int old_autoneg;
spin_lock(&np->lock); /* Preempt protection */
switch (cmd) {
- case SIOCGMIIPHY: /* Get PHY address */
- data->phy_id = mdio_phy_addr;
- break;
- case SIOCGMIIREG: /* Read MII register */
- data->val_out = e100_get_mdio_reg(dev, mdio_phy_addr, data->reg_num);
- break;
- case SIOCSMIIREG: /* Write MII register */
- e100_set_mdio_reg(dev, mdio_phy_addr, data->reg_num, data->val_in);
- break;
/* The ioctls below should be considered obsolete but are */
/* still present for compatability with old scripts/apps */
case SET_ETH_SPEED_10: /* 10 Mbps */
@@ -1463,60 +1588,47 @@
case SET_ETH_SPEED_100: /* 100 Mbps */
e100_set_speed(dev, 100);
break;
- case SET_ETH_SPEED_AUTO: /* Auto negotiate speed */
+ case SET_ETH_SPEED_AUTO: /* Auto-negotiate speed */
e100_set_speed(dev, 0);
break;
- case SET_ETH_DUPLEX_HALF: /* Half duplex. */
+ case SET_ETH_DUPLEX_HALF: /* Half duplex */
e100_set_duplex(dev, half);
break;
- case SET_ETH_DUPLEX_FULL: /* Full duplex. */
+ case SET_ETH_DUPLEX_FULL: /* Full duplex */
e100_set_duplex(dev, full);
break;
- case SET_ETH_DUPLEX_AUTO: /* Autonegotiate duplex*/
+ case SET_ETH_DUPLEX_AUTO: /* Auto-negotiate duplex */
e100_set_duplex(dev, autoneg);
break;
+ case SET_ETH_AUTONEG:
+ old_autoneg = autoneg_normal;
+ autoneg_normal = *(int*)data;
+ if (autoneg_normal != old_autoneg)
+ e100_negotiate(dev);
+ break;
default:
- return -EINVAL;
+ rc = generic_mii_ioctl(&np->mii_if, if_mii(ifr),
+ cmd, NULL);
+ break;
}
spin_unlock(&np->lock);
- return 0;
+ return rc;
}
-static int e100_set_settings(struct net_device *dev,
- struct ethtool_cmd *ecmd)
+static int e100_get_settings(struct net_device *dev,
+ struct ethtool_cmd *cmd)
{
- ecmd->supported = SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII |
- SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
- SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full;
- ecmd->port = PORT_TP;
- ecmd->transceiver = XCVR_EXTERNAL;
- ecmd->phy_address = mdio_phy_addr;
- ecmd->speed = current_speed;
- ecmd->duplex = full_duplex ? DUPLEX_FULL : DUPLEX_HALF;
- ecmd->advertising = ADVERTISED_TP;
+ struct net_local *np = netdev_priv(dev);
+ int err;
- if (current_duplex == autoneg && current_speed_selection == 0)
- ecmd->advertising |= ADVERTISED_Autoneg;
- else {
- ecmd->advertising |=
- ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
- ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full;
- if (current_speed_selection == 10)
- ecmd->advertising &= ~(ADVERTISED_100baseT_Half |
- ADVERTISED_100baseT_Full);
- else if (current_speed_selection == 100)
- ecmd->advertising &= ~(ADVERTISED_10baseT_Half |
- ADVERTISED_10baseT_Full);
- if (current_duplex == half)
- ecmd->advertising &= ~(ADVERTISED_10baseT_Full |
- ADVERTISED_100baseT_Full);
- else if (current_duplex == full)
- ecmd->advertising &= ~(ADVERTISED_10baseT_Half |
- ADVERTISED_100baseT_Half);
- }
+ spin_lock_irq(&np->lock);
+ err = mii_ethtool_gset(&np->mii_if, cmd);
+ spin_unlock_irq(&np->lock);
- ecmd->autoneg = AUTONEG_ENABLE;
- return 0;
+ /* The PHY may support 1000baseT, but the Etrax100 does not. */
+ cmd->supported &= ~(SUPPORTED_1000baseT_Half
+ | SUPPORTED_1000baseT_Full);
+ return err;
}
static int e100_set_settings(struct net_device *dev,
@@ -1560,7 +1672,8 @@
static int
e100_set_config(struct net_device *dev, struct ifmap *map)
{
- struct net_local *np = (struct net_local *)dev->priv;
+ struct net_local *np = netdev_priv(dev);
+
spin_lock(&np->lock); /* Preempt protection */
switch(map->port) {
@@ -1612,7 +1725,6 @@
es->collisions +=
IO_EXTRACT(R_TR_COUNTERS, single_col, r) +
IO_EXTRACT(R_TR_COUNTERS, multiple_col, r);
- es->tx_errors += IO_EXTRACT(R_TR_COUNTERS, deferred, r);
}
/*
@@ -1622,8 +1734,9 @@
static struct net_device_stats *
e100_get_stats(struct net_device *dev)
{
- struct net_local *lp = (struct net_local *)dev->priv;
+ struct net_local *lp = netdev_priv(dev);
unsigned long flags;
+
spin_lock_irqsave(&lp->lock, flags);
update_rx_stats(&lp->stats);
@@ -1643,13 +1756,13 @@
static void
set_multicast_list(struct net_device *dev)
{
- struct net_local *lp = (struct net_local *)dev->priv;
+ struct net_local *lp = netdev_priv(dev);
int num_addr = dev->mc_count;
unsigned long int lo_bits;
unsigned long int hi_bits;
+
spin_lock(&lp->lock);
- if (dev->flags & IFF_PROMISC)
- {
+ if (dev->flags & IFF_PROMISC) {
/* promiscuous mode */
lo_bits = 0xfffffffful;
hi_bits = 0xfffffffful;
@@ -1679,9 +1792,10 @@
struct dev_mc_list *dmi = dev->mc_list;
int i;
char *baddr;
+
lo_bits = 0x00000000ul;
hi_bits = 0x00000000ul;
- for (i=0; i<num_addr; i++) {
+ for (i = 0; i < num_addr; i++) {
/* Calculate the hash index for the GA registers */
hash_ix = 0;
@@ -1708,8 +1822,7 @@
if (hash_ix >= 32) {
hi_bits |= (1 << (hash_ix-32));
- }
- else {
+ } else {
lo_bits |= (1 << hash_ix);
}
dmi = dmi->next;
@@ -1724,10 +1837,11 @@
}
void
-e100_hardware_send_packet(char *buf, int length)
+e100_hardware_send_packet(struct net_local *np, char *buf, int length)
{
D(printk("e100 send pack, buf 0x%x len %d\n", buf, length));
+ spin_lock(&np->led_lock);
if (!led_active && time_after(jiffies, led_next_time)) {
/* light the network leds depending on the current speed. */
e100_set_network_leds(NETWORK_ACTIVITY);
@@ -1737,6 +1851,7 @@
led_active = 1;
mod_timer(&clear_led_timer, jiffies + HZ/10);
}
+ spin_unlock(&np->led_lock);
/* configure the tx dma descriptor */
myNextTxDesc->descr.sw_len = length;
@@ -1754,6 +1869,11 @@
static void
e100_clear_network_leds(unsigned long dummy)
{
+ struct net_device *dev = (struct net_device *)dummy;
+ struct net_local *np = netdev_priv(dev);
+
+ spin_lock(&np->led_lock);
+
if (led_active && time_after(jiffies, led_next_time)) {
e100_set_network_leds(NO_NETWORK_ACTIVITY);
@@ -1761,6 +1881,8 @@
led_next_time = jiffies + NET_FLASH_PAUSE;
led_active = 0;
}
+
+ spin_unlock(&np->led_lock);
}
static void
@@ -1781,19 +1903,25 @@
#else
LED_NETWORK_SET(LED_OFF);
#endif
- }
- else if (light_leds) {
+ } else if (light_leds) {
if (current_speed == 10) {
LED_NETWORK_SET(LED_ORANGE);
} else {
LED_NETWORK_SET(LED_GREEN);
}
- }
- else {
+ } else {
LED_NETWORK_SET(LED_OFF);
}
}
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void
+e100_netpoll(struct net_device* netdev)
+{
+ e100rxtx_interrupt(NETWORK_DMA_TX_IRQ_NBR, netdev, NULL);
+}
+#endif
+
static int
etrax_init_module(void)
{
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 72deff0..cf39473 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -4804,6 +4804,7 @@
spin_unlock_irqrestore(&adapter->stats_lock, flags);
return -EIO;
}
+ spin_unlock_irqrestore(&adapter->stats_lock, flags);
if (adapter->hw.media_type == e1000_media_type_copper) {
switch (data->reg_num) {
case PHY_CTRL:
@@ -4824,12 +4825,8 @@
DUPLEX_HALF;
retval = e1000_set_spd_dplx(adapter,
spddplx);
- if (retval) {
- spin_unlock_irqrestore(
- &adapter->stats_lock,
- flags);
+ if (retval)
return retval;
- }
}
if (netif_running(adapter->netdev))
e1000_reinit_locked(adapter);
@@ -4838,11 +4835,8 @@
break;
case M88E1000_PHY_SPEC_CTRL:
case M88E1000_EXT_PHY_SPEC_CTRL:
- if (e1000_phy_reset(&adapter->hw)) {
- spin_unlock_irqrestore(
- &adapter->stats_lock, flags);
+ if (e1000_phy_reset(&adapter->hw))
return -EIO;
- }
break;
}
} else {
@@ -4857,7 +4851,6 @@
break;
}
}
- spin_unlock_irqrestore(&adapter->stats_lock, flags);
break;
default:
return -EOPNOTSUPP;
diff --git a/drivers/net/fs_enet/Kconfig b/drivers/net/fs_enet/Kconfig
index 2765e49..562ea68 100644
--- a/drivers/net/fs_enet/Kconfig
+++ b/drivers/net/fs_enet/Kconfig
@@ -2,6 +2,7 @@
tristate "Freescale Ethernet Driver"
depends on CPM1 || CPM2
select MII
+ select PHYLIB
config FS_ENET_HAS_SCC
bool "Chip has an SCC usable for ethernet"
@@ -11,11 +12,19 @@
config FS_ENET_HAS_FCC
bool "Chip has an FCC usable for ethernet"
depends on FS_ENET && CPM2
- select MDIO_BITBANG
default y
config FS_ENET_HAS_FEC
bool "Chip has an FEC usable for ethernet"
depends on FS_ENET && CPM1
+ select FS_ENET_MDIO_FEC
default y
+config FS_ENET_MDIO_FEC
+ tristate "MDIO driver for FEC"
+ depends on FS_ENET && CPM1
+
+config FS_ENET_MDIO_FCC
+ tristate "MDIO driver for FCC"
+ depends on FS_ENET && CPM2
+ select MDIO_BITBANG
diff --git a/drivers/net/fs_enet/Makefile b/drivers/net/fs_enet/Makefile
index 02d4dc1..1ffbe07 100644
--- a/drivers/net/fs_enet/Makefile
+++ b/drivers/net/fs_enet/Makefile
@@ -4,7 +4,16 @@
obj-$(CONFIG_FS_ENET) += fs_enet.o
-obj-$(CONFIG_8xx) += mac-fec.o mac-scc.o mii-fec.o
-obj-$(CONFIG_CPM2) += mac-fcc.o mii-bitbang.o
+fs_enet-$(CONFIG_FS_ENET_HAS_SCC) += mac-scc.o
+fs_enet-$(CONFIG_FS_ENET_HAS_FEC) += mac-fec.o
+fs_enet-$(CONFIG_FS_ENET_HAS_FCC) += mac-fcc.o
-fs_enet-objs := fs_enet-main.o
+ifeq ($(CONFIG_PPC_CPM_NEW_BINDING),y)
+obj-$(CONFIG_FS_ENET_MDIO_FEC) += mii-fec.o
+obj-$(CONFIG_FS_ENET_MDIO_FCC) += mii-bitbang.o
+else
+fs_enet-$(CONFIG_FS_ENET_MDIO_FEC) += mii-fec.o
+fs_enet-$(CONFIG_FS_ENET_MDIO_FCC) += mii-bitbang.o
+endif
+
+fs_enet-objs := fs_enet-main.o $(fs_enet-m)
diff --git a/drivers/net/mlx4/alloc.c b/drivers/net/mlx4/alloc.c
index f8d63d3..b226e01 100644
--- a/drivers/net/mlx4/alloc.c
+++ b/drivers/net/mlx4/alloc.c
@@ -171,9 +171,10 @@
buf->u.direct.map);
else {
for (i = 0; i < buf->nbufs; ++i)
- dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
- buf->u.page_list[i].buf,
- buf->u.page_list[i].map);
+ if (buf->u.page_list[i].buf)
+ dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
+ buf->u.page_list[i].buf,
+ buf->u.page_list[i].map);
kfree(buf->u.page_list);
}
}
diff --git a/drivers/net/mlx4/qp.c b/drivers/net/mlx4/qp.c
index cc4b1be..42b4763 100644
--- a/drivers/net/mlx4/qp.c
+++ b/drivers/net/mlx4/qp.c
@@ -240,7 +240,7 @@
mlx4_table_put(dev, &qp_table->auxc_table, qp->qpn);
mlx4_table_put(dev, &qp_table->qp_table, qp->qpn);
- if (qp->qpn < dev->caps.sqp_start + 8)
+ if (qp->qpn >= dev->caps.sqp_start + 8)
mlx4_bitmap_free(&qp_table->bitmap, qp->qpn);
}
EXPORT_SYMBOL_GPL(mlx4_qp_free);
diff --git a/drivers/net/netx-eth.c b/drivers/net/netx-eth.c
index eb0aff7..5267e03 100644
--- a/drivers/net/netx-eth.c
+++ b/drivers/net/netx-eth.c
@@ -128,8 +128,8 @@
FIFO_PTR_FRAMELEN(len));
ndev->trans_start = jiffies;
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += skb->len;
+ ndev->stats.tx_packets++;
+ ndev->stats.tx_bytes += skb->len;
netif_stop_queue(ndev);
spin_unlock_irq(&priv->lock);
@@ -155,7 +155,7 @@
if (unlikely(skb == NULL)) {
printk(KERN_NOTICE "%s: Low memory, packet dropped.\n",
ndev->name);
- dev->stats.rx_dropped++;
+ ndev->stats.rx_dropped++;
return;
}
diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index b8c0e7b..6326667 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -84,7 +84,7 @@
#include "s2io.h"
#include "s2io-regs.h"
-#define DRV_VERSION "2.0.26.5"
+#define DRV_VERSION "2.0.26.6"
/* S2io Driver name & version. */
static char s2io_driver_name[] = "Neterion";
@@ -3775,6 +3775,40 @@
return err;
}
+
+static void remove_msix_isr(struct s2io_nic *sp)
+{
+ int i;
+ u16 msi_control;
+
+ for (i = 0; i < MAX_REQUESTED_MSI_X; i++) {
+ if (sp->s2io_entries[i].in_use ==
+ MSIX_REGISTERED_SUCCESS) {
+ int vector = sp->entries[i].vector;
+ void *arg = sp->s2io_entries[i].arg;
+ free_irq(vector, arg);
+ }
+ }
+
+ kfree(sp->entries);
+ kfree(sp->s2io_entries);
+ sp->entries = NULL;
+ sp->s2io_entries = NULL;
+
+ pci_read_config_word(sp->pdev, 0x42, &msi_control);
+ msi_control &= 0xFFFE; /* Disable MSI */
+ pci_write_config_word(sp->pdev, 0x42, msi_control);
+
+ pci_disable_msix(sp->pdev);
+}
+
+static void remove_inta_isr(struct s2io_nic *sp)
+{
+ struct net_device *dev = sp->dev;
+
+ free_irq(sp->pdev->irq, dev);
+}
+
/* ********************************************************* *
* Functions defined below concern the OS part of the driver *
* ********************************************************* */
@@ -3809,28 +3843,9 @@
int ret = s2io_enable_msi_x(sp);
if (!ret) {
- u16 msi_control;
-
ret = s2io_test_msi(sp);
-
/* rollback MSI-X, will re-enable during add_isr() */
- kfree(sp->entries);
- sp->mac_control.stats_info->sw_stat.mem_freed +=
- (MAX_REQUESTED_MSI_X *
- sizeof(struct msix_entry));
- kfree(sp->s2io_entries);
- sp->mac_control.stats_info->sw_stat.mem_freed +=
- (MAX_REQUESTED_MSI_X *
- sizeof(struct s2io_msix_entry));
- sp->entries = NULL;
- sp->s2io_entries = NULL;
-
- pci_read_config_word(sp->pdev, 0x42, &msi_control);
- msi_control &= 0xFFFE; /* Disable MSI */
- pci_write_config_word(sp->pdev, 0x42, msi_control);
-
- pci_disable_msix(sp->pdev);
-
+ remove_msix_isr(sp);
}
if (ret) {
@@ -6719,15 +6734,22 @@
}
}
if (err) {
+ remove_msix_isr(sp);
DBG_PRINT(ERR_DBG,"%s:MSI-X-%d registration "
"failed\n", dev->name, i);
- DBG_PRINT(ERR_DBG, "Returned: %d\n", err);
- return -1;
+ DBG_PRINT(ERR_DBG, "%s: defaulting to INTA\n",
+ dev->name);
+ sp->config.intr_type = INTA;
+ break;
}
sp->s2io_entries[i].in_use = MSIX_REGISTERED_SUCCESS;
}
- printk("MSI-X-TX %d entries enabled\n",msix_tx_cnt);
- printk("MSI-X-RX %d entries enabled\n",msix_rx_cnt);
+ if (!err) {
+ printk(KERN_INFO "MSI-X-TX %d entries enabled\n",
+ msix_tx_cnt);
+ printk(KERN_INFO "MSI-X-RX %d entries enabled\n",
+ msix_rx_cnt);
+ }
}
if (sp->config.intr_type == INTA) {
err = request_irq((int) sp->pdev->irq, s2io_isr, IRQF_SHARED,
@@ -6742,40 +6764,10 @@
}
static void s2io_rem_isr(struct s2io_nic * sp)
{
- struct net_device *dev = sp->dev;
- struct swStat *stats = &sp->mac_control.stats_info->sw_stat;
-
- if (sp->config.intr_type == MSI_X) {
- int i;
- u16 msi_control;
-
- for (i=1; (sp->s2io_entries[i].in_use ==
- MSIX_REGISTERED_SUCCESS); i++) {
- int vector = sp->entries[i].vector;
- void *arg = sp->s2io_entries[i].arg;
-
- synchronize_irq(vector);
- free_irq(vector, arg);
- }
-
- kfree(sp->entries);
- stats->mem_freed +=
- (MAX_REQUESTED_MSI_X * sizeof(struct msix_entry));
- kfree(sp->s2io_entries);
- stats->mem_freed +=
- (MAX_REQUESTED_MSI_X * sizeof(struct s2io_msix_entry));
- sp->entries = NULL;
- sp->s2io_entries = NULL;
-
- pci_read_config_word(sp->pdev, 0x42, &msi_control);
- msi_control &= 0xFFFE; /* Disable MSI */
- pci_write_config_word(sp->pdev, 0x42, msi_control);
-
- pci_disable_msix(sp->pdev);
- } else {
- synchronize_irq(sp->pdev->irq);
- free_irq(sp->pdev->irq, dev);
- }
+ if (sp->config.intr_type == MSI_X)
+ remove_msix_isr(sp);
+ else
+ remove_inta_isr(sp);
}
static void do_s2io_card_down(struct s2io_nic * sp, int do_io)
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index b9961dc..6d62250 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -2512,31 +2512,32 @@
return err;
}
-/* Assign Ram Buffer allocation to queue */
-static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, u32 space)
+static void skge_ramset(struct skge_hw *hw, u16 q, u32 start, size_t len)
{
u32 end;
- /* convert from K bytes to qwords used for hw register */
- start *= 1024/8;
- space *= 1024/8;
- end = start + space - 1;
+ start /= 8;
+ len /= 8;
+ end = start + len - 1;
skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_RST_CLR);
skge_write32(hw, RB_ADDR(q, RB_START), start);
- skge_write32(hw, RB_ADDR(q, RB_END), end);
skge_write32(hw, RB_ADDR(q, RB_WP), start);
skge_write32(hw, RB_ADDR(q, RB_RP), start);
+ skge_write32(hw, RB_ADDR(q, RB_END), end);
if (q == Q_R1 || q == Q_R2) {
- u32 tp = space - space/4;
-
/* Set thresholds on receive queue's */
- skge_write32(hw, RB_ADDR(q, RB_RX_UTPP), tp);
- skge_write32(hw, RB_ADDR(q, RB_RX_LTPP), space/4);
- } else if (hw->chip_id != CHIP_ID_GENESIS)
- /* Genesis Tx Fifo is too small for normal store/forward */
+ skge_write32(hw, RB_ADDR(q, RB_RX_UTPP),
+ start + (2*len)/3);
+ skge_write32(hw, RB_ADDR(q, RB_RX_LTPP),
+ start + (len/3));
+ } else {
+ /* Enable store & forward on Tx queue's because
+ * Tx FIFO is only 4K on Genesis and 1K on Yukon
+ */
skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_STFWD);
+ }
skge_write8(hw, RB_ADDR(q, RB_CTRL), RB_ENA_OP_MD);
}
@@ -2564,7 +2565,7 @@
struct skge_port *skge = netdev_priv(dev);
struct skge_hw *hw = skge->hw;
int port = skge->port;
- u32 ramaddr, ramsize, rxspace;
+ u32 chunk, ram_addr;
size_t rx_size, tx_size;
int err;
@@ -2619,15 +2620,14 @@
spin_unlock_bh(&hw->phy_lock);
/* Configure RAMbuffers */
- ramsize = (hw->ram_size - hw->ram_offset) / hw->ports;
- ramaddr = hw->ram_offset + port * ramsize;
- rxspace = 8 + (2*(ramsize - 16))/3;
+ chunk = hw->ram_size / ((hw->ports + 1)*2);
+ ram_addr = hw->ram_offset + 2 * chunk * port;
- skge_ramset(hw, rxqaddr[port], ramaddr, rxspace);
- skge_ramset(hw, txqaddr[port], ramaddr + rxspace, ramsize - rxspace);
-
+ skge_ramset(hw, rxqaddr[port], ram_addr, chunk);
skge_qset(skge, rxqaddr[port], skge->rx_ring.to_clean);
+
BUG_ON(skge->tx_ring.to_use != skge->tx_ring.to_clean);
+ skge_ramset(hw, txqaddr[port], ram_addr+chunk, chunk);
skge_qset(skge, txqaddr[port], skge->tx_ring.to_use);
/* Start receiver BMU */
@@ -3591,12 +3591,15 @@
if (hw->chip_id == CHIP_ID_GENESIS) {
if (t8 == 3) {
/* special case: 4 x 64k x 36, offset = 0x80000 */
- hw->ram_size = 1024;
- hw->ram_offset = 512;
+ hw->ram_size = 0x100000;
+ hw->ram_offset = 0x80000;
} else
hw->ram_size = t8 * 512;
- } else /* Yukon */
- hw->ram_size = t8 ? t8 * 4 : 128;
+ }
+ else if (t8 == 0)
+ hw->ram_size = 0x20000;
+ else
+ hw->ram_size = t8 * 4096;
hw->intr_mask = IS_HW_ERR;
diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c
index c20a3bd2..9cc13dd 100644
--- a/drivers/net/sunhme.c
+++ b/drivers/net/sunhme.c
@@ -1281,7 +1281,7 @@
skb->dev = dev;
/* Because we reserve afterwards. */
- skb_put(skb, (ETH_FRAME_LEN + RX_OFFSET));
+ skb_put(skb, (ETH_FRAME_LEN + RX_OFFSET + 4));
hme_write_rxd(hp, &hb->happy_meal_rxd[i],
(RXFLAG_OWN | ((RX_BUF_ALLOC_SIZE - RX_OFFSET) << 16)),
hme_dma_map(hp, skb->data, RX_BUF_ALLOC_SIZE, DMA_FROMDEVICE));
@@ -1700,6 +1700,11 @@
HMD(("tx old[%08x] and rx [%08x] ON!\n",
hme_read32(hp, bregs + BMAC_TXCFG),
hme_read32(hp, bregs + BMAC_RXCFG)));
+
+ /* Set larger TX/RX size to allow for 802.1q */
+ hme_write32(hp, bregs + BMAC_TXMAX, ETH_FRAME_LEN + 8);
+ hme_write32(hp, bregs + BMAC_RXMAX, ETH_FRAME_LEN + 8);
+
hme_write32(hp, bregs + BMAC_TXCFG,
hme_read32(hp, bregs + BMAC_TXCFG) | BIGMAC_TXCFG_ENABLE);
hme_write32(hp, bregs + BMAC_RXCFG,
@@ -2039,7 +2044,7 @@
hme_dma_unmap(hp, dma_addr, RX_BUF_ALLOC_SIZE, DMA_FROMDEVICE);
hp->rx_skbs[elem] = new_skb;
new_skb->dev = dev;
- skb_put(new_skb, (ETH_FRAME_LEN + RX_OFFSET));
+ skb_put(new_skb, (ETH_FRAME_LEN + RX_OFFSET + 4));
hme_write_rxd(hp, this,
(RXFLAG_OWN|((RX_BUF_ALLOC_SIZE-RX_OFFSET)<<16)),
hme_dma_map(hp, new_skb->data, RX_BUF_ALLOC_SIZE, DMA_FROMDEVICE));
@@ -2809,8 +2814,8 @@
dev->watchdog_timeo = 5*HZ;
dev->ethtool_ops = &hme_ethtool_ops;
- /* Happy Meal can do it all... except VLAN. */
- dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_VLAN_CHALLENGED;
+ /* Happy Meal can do it all... */
+ dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM;
dev->irq = sdev->irqs[0];
@@ -3143,8 +3148,8 @@
dev->irq = pdev->irq;
dev->dma = 0;
- /* Happy Meal can do it all... except VLAN. */
- dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_VLAN_CHALLENGED;
+ /* Happy Meal can do it all... */
+ dev->features |= NETIF_F_SG | NETIF_F_HW_CSUM;
#if defined(CONFIG_SBUS) && defined(CONFIG_PCI)
/* Hook up PCI register/dma accessors. */
diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c
index 5c4a92d..450e29d 100644
--- a/drivers/net/via-velocity.c
+++ b/drivers/net/via-velocity.c
@@ -1963,6 +1963,11 @@
return -EINVAL;
}
+ if (!netif_running(dev)) {
+ dev->mtu = new_mtu;
+ return 0;
+ }
+
if (new_mtu != oldmtu) {
spin_lock_irqsave(&vptr->lock, flags);
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index 262ab0b..c48b1b5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -71,19 +71,19 @@
};
static s32 iwl_expected_tpt_g[IWL_RATE_COUNT] = {
- 0, 0, 76, 104, 130, 168, 191, 202, 7, 13, 35, 58
+ 7, 13, 35, 58, 0, 0, 76, 104, 130, 168, 191, 202
};
static s32 iwl_expected_tpt_g_prot[IWL_RATE_COUNT] = {
- 0, 0, 0, 80, 93, 113, 123, 125, 7, 13, 35, 58
+ 7, 13, 35, 58, 0, 0, 0, 80, 93, 113, 123, 125
};
static s32 iwl_expected_tpt_a[IWL_RATE_COUNT] = {
- 40, 57, 72, 98, 121, 154, 177, 186, 0, 0, 0, 0
+ 0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186
};
static s32 iwl_expected_tpt_b[IWL_RATE_COUNT] = {
- 0, 0, 0, 0, 0, 0, 0, 0, 7, 13, 35, 58
+ 7, 13, 35, 58, 0, 0, 0, 0, 0, 0, 0, 0
};
struct iwl_tpt_entry {
@@ -350,6 +350,10 @@
sta->last_txrate = sta->txrate;
+ /* For MODE_IEEE80211A mode it start at IWL_FIRST_OFDM_RATE */
+ if (local->hw.conf.phymode == MODE_IEEE80211A)
+ sta->last_txrate += IWL_FIRST_OFDM_RATE;
+
IWL_DEBUG_RATE("leave\n");
}
@@ -417,6 +421,33 @@
IWL_DEBUG_RATE("leave\n");
}
+
+/*
+ * get ieee prev rate from rate scale table.
+ * for A and B mode we need to overright prev
+ * value
+ */
+static int rs_adjust_next_rate(struct iwl_priv *priv, int rate)
+{
+ int next_rate = iwl_get_prev_ieee_rate(rate);
+
+ switch (priv->phymode) {
+ case MODE_IEEE80211A:
+ if (rate == IWL_RATE_12M_INDEX)
+ next_rate = IWL_RATE_9M_INDEX;
+ else if (rate == IWL_RATE_6M_INDEX)
+ next_rate = IWL_RATE_6M_INDEX;
+ break;
+ case MODE_IEEE80211B:
+ if (rate == IWL_RATE_11M_INDEX_TABLE)
+ next_rate = IWL_RATE_5M_INDEX_TABLE;
+ break;
+ default:
+ break;
+ }
+
+ return next_rate;
+}
/**
* rs_tx_status - Update rate control values based on Tx results
*
@@ -479,7 +510,8 @@
last_index = scale_rate_index;
} else {
current_count = priv->retry_rate;
- last_index = iwl_get_prev_ieee_rate(scale_rate_index);
+ last_index = rs_adjust_next_rate(priv,
+ scale_rate_index);
}
/* Update this rate accounting for as many retries
@@ -494,9 +526,10 @@
if (retries)
scale_rate_index =
- iwl_get_prev_ieee_rate(scale_rate_index);
+ rs_adjust_next_rate(priv, scale_rate_index);
}
+
/* Update the last index window with success/failure based on ACK */
IWL_DEBUG_RATE("Update rate %d with %s.\n",
last_index,
@@ -672,7 +705,10 @@
}
rate_mask = sta->supp_rates;
- index = min(sta->txrate & 0xffff, IWL_RATE_COUNT - 1);
+ index = min(sta->last_txrate & 0xffff, IWL_RATE_COUNT - 1);
+
+ if (priv->phymode == (u8) MODE_IEEE80211A)
+ rate_mask = rate_mask << IWL_FIRST_OFDM_RATE;
rs_priv = (void *)sta->rate_ctrl_priv;
@@ -801,7 +837,11 @@
out:
sta->last_txrate = index;
- sta->txrate = sta->last_txrate;
+ if (priv->phymode == (u8) MODE_IEEE80211A)
+ sta->txrate = sta->last_txrate - IWL_FIRST_OFDM_RATE;
+ else
+ sta->txrate = sta->last_txrate;
+
sta_info_put(sta);
IWL_DEBUG_RATE("leave: %d\n", index);
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.h b/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
index b926738..bec4d3f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.h
@@ -36,10 +36,17 @@
u8 next_rs; /* next rate used in rs algo */
u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
u8 next_rs_tgg; /* next rate used in TGG rs algo */
+ u8 table_rs_index; /* index in rate scale table cmd */
+ u8 prev_table_rs; /* prev in rate table cmd */
+
};
enum {
- IWL_RATE_6M_INDEX = 0,
+ IWL_RATE_1M_INDEX = 0,
+ IWL_RATE_2M_INDEX,
+ IWL_RATE_5M_INDEX,
+ IWL_RATE_11M_INDEX,
+ IWL_RATE_6M_INDEX,
IWL_RATE_9M_INDEX,
IWL_RATE_12M_INDEX,
IWL_RATE_18M_INDEX,
@@ -47,16 +54,28 @@
IWL_RATE_36M_INDEX,
IWL_RATE_48M_INDEX,
IWL_RATE_54M_INDEX,
- IWL_RATE_1M_INDEX,
- IWL_RATE_2M_INDEX,
- IWL_RATE_5M_INDEX,
- IWL_RATE_11M_INDEX,
IWL_RATE_COUNT,
IWL_RATE_INVM_INDEX,
IWL_RATE_INVALID = IWL_RATE_INVM_INDEX
};
enum {
+ IWL_RATE_6M_INDEX_TABLE = 0,
+ IWL_RATE_9M_INDEX_TABLE,
+ IWL_RATE_12M_INDEX_TABLE,
+ IWL_RATE_18M_INDEX_TABLE,
+ IWL_RATE_24M_INDEX_TABLE,
+ IWL_RATE_36M_INDEX_TABLE,
+ IWL_RATE_48M_INDEX_TABLE,
+ IWL_RATE_54M_INDEX_TABLE,
+ IWL_RATE_1M_INDEX_TABLE,
+ IWL_RATE_2M_INDEX_TABLE,
+ IWL_RATE_5M_INDEX_TABLE,
+ IWL_RATE_11M_INDEX_TABLE,
+ IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX,
+};
+
+enum {
IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
IWL_LAST_OFDM_RATE = IWL_RATE_54M_INDEX,
IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 19bcb01..3a45fe9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -54,7 +54,9 @@
IWL_RATE_##rp##M_INDEX, \
IWL_RATE_##rn##M_INDEX, \
IWL_RATE_##pp##M_INDEX, \
- IWL_RATE_##np##M_INDEX }
+ IWL_RATE_##np##M_INDEX, \
+ IWL_RATE_##r##M_INDEX_TABLE, \
+ IWL_RATE_##ip##M_INDEX_TABLE }
/*
* Parameter order:
@@ -65,6 +67,10 @@
*
*/
const struct iwl_rate_info iwl_rates[IWL_RATE_COUNT] = {
+ IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */
+ IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */
+ IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */
+ IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */
IWL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11), /* 6mbps */
IWL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11), /* 9mbps */
IWL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18), /* 12mbps */
@@ -73,10 +79,6 @@
IWL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48), /* 36mbps */
IWL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54), /* 48mbps */
IWL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV),/* 54mbps */
- IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */
- IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */
- IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */
- IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */
};
/* 1 = enable the iwl_disable_events() function */
@@ -662,10 +664,11 @@
cmd->cmd.tx.tx_flags = tx_flags;
/* OFDM */
- cmd->cmd.tx.supp_rates[0] = rate_mask & IWL_OFDM_RATES_MASK;
+ cmd->cmd.tx.supp_rates[0] =
+ ((rate_mask & IWL_OFDM_RATES_MASK) >> IWL_FIRST_OFDM_RATE) & 0xFF;
/* CCK */
- cmd->cmd.tx.supp_rates[1] = (rate_mask >> 8) & 0xF;
+ cmd->cmd.tx.supp_rates[1] = (rate_mask & 0xF);
IWL_DEBUG_RATE("Tx sta id: %d, rate: %d (plcp), flags: 0x%4X "
"cck/ofdm mask: 0x%x/0x%x\n", sta_id,
@@ -1432,7 +1435,7 @@
/* use this channel group's 6Mbit clipping/saturation pwr,
* but cap at regulatory scan power restriction (set during init
* based on eeprom channel data) for this channel. */
- power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX]);
+ power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX_TABLE]);
/* further limit to user's max power preference.
* FIXME: Other spectrum management power limitations do not
@@ -1447,7 +1450,7 @@
* *index*. */
power_index = ch_info->power_info[rate_index].power_table_index
- (power - ch_info->power_info
- [IWL_RATE_6M_INDEX].requested_power) * 2;
+ [IWL_RATE_6M_INDEX_TABLE].requested_power) * 2;
/* store reference index that we use when adjusting *all* scan
* powers. So we can accommodate user (all channel) or spectrum
@@ -1476,7 +1479,7 @@
*/
int iwl_hw_reg_send_txpower(struct iwl_priv *priv)
{
- int rate_idx;
+ int rate_idx, i;
const struct iwl_channel_info *ch_info = NULL;
struct iwl_txpowertable_cmd txpower = {
.channel = priv->active_rxon.channel,
@@ -1500,20 +1503,36 @@
}
/* fill cmd with power settings for all rates for current channel */
- for (rate_idx = 0; rate_idx < IWL_RATE_COUNT; rate_idx++) {
- txpower.power[rate_idx].tpc = ch_info->power_info[rate_idx].tpc;
- txpower.power[rate_idx].rate = iwl_rates[rate_idx].plcp;
+ /* Fill OFDM rate */
+ for (rate_idx = IWL_FIRST_OFDM_RATE, i = 0;
+ rate_idx <= IWL_LAST_OFDM_RATE; rate_idx++, i++) {
+
+ txpower.power[i].tpc = ch_info->power_info[i].tpc;
+ txpower.power[i].rate = iwl_rates[rate_idx].plcp;
IWL_DEBUG_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
le16_to_cpu(txpower.channel),
txpower.band,
- txpower.power[rate_idx].tpc.tx_gain,
- txpower.power[rate_idx].tpc.dsp_atten,
- txpower.power[rate_idx].rate);
+ txpower.power[i].tpc.tx_gain,
+ txpower.power[i].tpc.dsp_atten,
+ txpower.power[i].rate);
+ }
+ /* Fill CCK rates */
+ for (rate_idx = IWL_FIRST_CCK_RATE;
+ rate_idx <= IWL_LAST_CCK_RATE; rate_idx++, i++) {
+ txpower.power[i].tpc = ch_info->power_info[i].tpc;
+ txpower.power[i].rate = iwl_rates[rate_idx].plcp;
+
+ IWL_DEBUG_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
+ le16_to_cpu(txpower.channel),
+ txpower.band,
+ txpower.power[i].tpc.tx_gain,
+ txpower.power[i].tpc.dsp_atten,
+ txpower.power[i].rate);
}
return iwl_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD,
- sizeof(struct iwl_txpowertable_cmd), &txpower);
+ sizeof(struct iwl_txpowertable_cmd), &txpower);
}
@@ -1549,7 +1568,7 @@
power_info = ch_info->power_info;
/* update OFDM Txpower settings */
- for (i = IWL_FIRST_OFDM_RATE; i <= IWL_LAST_OFDM_RATE;
+ for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE;
i++, ++power_info) {
int delta_idx;
@@ -1573,14 +1592,14 @@
* ... all CCK power settings for a given channel are the *same*. */
if (power_changed) {
power =
- ch_info->power_info[IWL_RATE_12M_INDEX].
+ ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
requested_power + IWL_CCK_FROM_OFDM_POWER_DIFF;
/* do all CCK rates' iwl_channel_power_info structures */
- for (i = IWL_FIRST_CCK_RATE; i <= IWL_LAST_CCK_RATE; i++) {
+ for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++) {
power_info->requested_power = power;
power_info->base_power_index =
- ch_info->power_info[IWL_RATE_12M_INDEX].
+ ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
base_power_index + IWL_CCK_FROM_OFDM_INDEX_DIFF;
++power_info;
}
@@ -1674,7 +1693,7 @@
for (scan_tbl_index = 0;
scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
s32 actual_index = (scan_tbl_index == 0) ?
- IWL_RATE_1M_INDEX : IWL_RATE_6M_INDEX;
+ IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
iwl_hw_reg_set_scan_power(priv, scan_tbl_index,
actual_index, clip_pwrs,
ch_info, a_band);
@@ -1905,19 +1924,19 @@
for (rate_index = 0;
rate_index < IWL_RATE_COUNT; rate_index++, clip_pwrs++) {
switch (rate_index) {
- case IWL_RATE_36M_INDEX:
+ case IWL_RATE_36M_INDEX_TABLE:
if (i == 0) /* B/G */
*clip_pwrs = satur_pwr;
else /* A */
*clip_pwrs = satur_pwr - 5;
break;
- case IWL_RATE_48M_INDEX:
+ case IWL_RATE_48M_INDEX_TABLE:
if (i == 0)
*clip_pwrs = satur_pwr - 7;
else
*clip_pwrs = satur_pwr - 10;
break;
- case IWL_RATE_54M_INDEX:
+ case IWL_RATE_54M_INDEX_TABLE:
if (i == 0)
*clip_pwrs = satur_pwr - 9;
else
@@ -2031,7 +2050,7 @@
}
/* set tx power for CCK rates, based on OFDM 12 Mbit settings*/
- pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX];
+ pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX_TABLE];
power = pwr_info->requested_power +
IWL_CCK_FROM_OFDM_POWER_DIFF;
pwr_index = pwr_info->power_table_index +
@@ -2047,9 +2066,9 @@
/* fill each CCK rate's iwl_channel_power_info structure
* NOTE: All CCK-rate Txpwrs are the same for a given chnl!
* NOTE: CCK rates start at end of OFDM rates! */
- for (rate_index = IWL_OFDM_RATES;
- rate_index < IWL_RATE_COUNT; rate_index++) {
- pwr_info = &ch_info->power_info[rate_index];
+ for (rate_index = 0;
+ rate_index < IWL_CCK_RATES; rate_index++) {
+ pwr_info = &ch_info->power_info[rate_index+IWL_OFDM_RATES];
pwr_info->requested_power = power;
pwr_info->power_table_index = pwr_index;
pwr_info->base_power_index = base_pwr_index;
@@ -2061,7 +2080,7 @@
for (scan_tbl_index = 0;
scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
s32 actual_index = (scan_tbl_index == 0) ?
- IWL_RATE_1M_INDEX : IWL_RATE_6M_INDEX;
+ IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
iwl_hw_reg_set_scan_power(priv, scan_tbl_index,
actual_index, clip_pwrs, ch_info, a_band);
}
@@ -2139,17 +2158,20 @@
*/
int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
{
- int rc, i;
+ int rc, i, index, prev_index;
struct iwl_rate_scaling_cmd rate_cmd = {
.reserved = {0, 0, 0},
};
struct iwl_rate_scaling_info *table = rate_cmd.table;
for (i = 0; i < ARRAY_SIZE(iwl_rates); i++) {
- table[i].rate_n_flags =
+ index = iwl_rates[i].table_rs_index;
+
+ table[index].rate_n_flags =
iwl_hw_set_rate_n_flags(iwl_rates[i].plcp, 0);
- table[i].try_cnt = priv->retry_rate;
- table[i].next_rate_index = iwl_get_prev_ieee_rate(i);
+ table[index].try_cnt = priv->retry_rate;
+ prev_index = iwl_get_prev_ieee_rate(i);
+ table[index].next_rate_index = iwl_rates[prev_index].table_rs_index;
}
switch (priv->phymode) {
@@ -2157,26 +2179,26 @@
IWL_DEBUG_RATE("Select A mode rate scale\n");
/* If one of the following CCK rates is used,
* have it fall back to the 6M OFDM rate */
- for (i = IWL_FIRST_CCK_RATE; i <= IWL_LAST_CCK_RATE; i++)
- table[i].next_rate_index = IWL_FIRST_OFDM_RATE;
+ for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++)
+ table[i].next_rate_index = iwl_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
/* Don't fall back to CCK rates */
- table[IWL_RATE_12M_INDEX].next_rate_index = IWL_RATE_9M_INDEX;
+ table[IWL_RATE_12M_INDEX_TABLE].next_rate_index = IWL_RATE_9M_INDEX_TABLE;
/* Don't drop out of OFDM rates */
- table[IWL_FIRST_OFDM_RATE].next_rate_index =
- IWL_FIRST_OFDM_RATE;
+ table[IWL_RATE_6M_INDEX_TABLE].next_rate_index =
+ iwl_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
break;
case MODE_IEEE80211B:
IWL_DEBUG_RATE("Select B mode rate scale\n");
/* If an OFDM rate is used, have it fall back to the
* 1M CCK rates */
- for (i = IWL_FIRST_OFDM_RATE; i <= IWL_LAST_OFDM_RATE; i++)
- table[i].next_rate_index = IWL_FIRST_CCK_RATE;
+ for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE; i++)
+ table[i].next_rate_index = iwl_rates[IWL_FIRST_CCK_RATE].table_rs_index;
/* CCK shouldn't fall back to OFDM... */
- table[IWL_RATE_11M_INDEX].next_rate_index = IWL_RATE_5M_INDEX;
+ table[IWL_RATE_11M_INDEX_TABLE].next_rate_index = IWL_RATE_5M_INDEX_TABLE;
break;
default:
@@ -2248,22 +2270,12 @@
tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK |
TX_CMD_FLG_TSF_MSK);
- /* supp_rates[0] == OFDM */
- tx_beacon_cmd->tx.supp_rates[0] = IWL_OFDM_BASIC_RATES_MASK;
+ /* supp_rates[0] == OFDM start at IWL_FIRST_OFDM_RATE*/
+ tx_beacon_cmd->tx.supp_rates[0] =
+ (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
- /* supp_rates[1] == CCK
- *
- * NOTE: IWL_*_RATES_MASK are not in the order that supp_rates
- * expects so we have to shift them around.
- *
- * supp_rates expects:
- * CCK rates are bit0..3
- *
- * However IWL_*_RATES_MASK has:
- * CCK rates are bit8..11
- */
tx_beacon_cmd->tx.supp_rates[1] =
- (IWL_CCK_BASIC_RATES_MASK >> 8) & 0xF;
+ (IWL_CCK_BASIC_RATES_MASK & 0xF);
return (sizeof(struct iwl_tx_beacon_cmd) + frame_size);
}
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index be7c9f4..465da4f 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -4850,7 +4850,7 @@
if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
/* Hardware disappeared */
IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
- goto none;
+ goto unplugged;
}
IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
@@ -4858,6 +4858,7 @@
/* iwl_irq_tasklet() will service interrupts and re-enable them */
tasklet_schedule(&priv->irq_tasklet);
+unplugged:
spin_unlock(&priv->lock);
return IRQ_HANDLED;
@@ -5331,13 +5332,13 @@
/* 5.2GHz channels start after the 2.4GHz channels */
modes[A].mode = MODE_IEEE80211A;
modes[A].channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)];
- modes[A].rates = rates;
+ modes[A].rates = &rates[4];
modes[A].num_rates = 8; /* just OFDM */
modes[A].num_channels = 0;
modes[B].mode = MODE_IEEE80211B;
modes[B].channels = channels;
- modes[B].rates = &rates[8];
+ modes[B].rates = rates;
modes[B].num_rates = 4; /* just CCK */
modes[B].num_channels = 0;
diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c
index 6757c6c..9918780 100644
--- a/drivers/net/wireless/iwlwifi/iwl4965-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c
@@ -5156,9 +5156,10 @@
}
if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
- /* Hardware disappeared */
+ /* Hardware disappeared. It might have already raised
+ * an interrupt */
IWL_WARNING("HARDWARE GONE?? INTA == 0x%080x\n", inta);
- goto none;
+ goto unplugged;
}
IWL_DEBUG_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
@@ -5166,8 +5167,9 @@
/* iwl_irq_tasklet() will service interrupts and re-enable them */
tasklet_schedule(&priv->irq_tasklet);
- spin_unlock(&priv->lock);
+ unplugged:
+ spin_unlock(&priv->lock);
return IRQ_HANDLED;
none:
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index ff2d632..702321c 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -620,7 +620,7 @@
* up to version C the link tuning should halt after 20
* seconds.
*/
- if (rt2x00_get_rev(&rt2x00dev->chip) < RT2560_VERSION_D &&
+ if (rt2x00_rev(&rt2x00dev->chip) < RT2560_VERSION_D &&
rt2x00dev->link.count > 20)
return;
@@ -630,7 +630,7 @@
* Chipset versions C and lower should directly continue
* to the dynamic CCA tuning.
*/
- if (rt2x00_get_rev(&rt2x00dev->chip) < RT2560_VERSION_D)
+ if (rt2x00_rev(&rt2x00dev->chip) < RT2560_VERSION_D)
goto dynamic_cca_tune;
/*
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 7cdc80a..277a020 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -753,7 +753,7 @@
rt2x00_set_field16(®, MAC_CSR1_HOST_READY, 1);
rt2500usb_register_write(rt2x00dev, MAC_CSR1, reg);
- if (rt2x00_get_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
+ if (rt2x00_rev(&rt2x00dev->chip) >= RT2570_VERSION_C) {
rt2500usb_register_read(rt2x00dev, PHY_CSR2, ®);
reg &= ~0x0002;
} else {
@@ -1257,7 +1257,7 @@
rt2500usb_register_read(rt2x00dev, MAC_CSR0, ®);
rt2x00_set_chip(rt2x00dev, RT2570, value, reg);
- if (rt2x00_rev(&rt2x00dev->chip, 0xffff0)) {
+ if (!rt2x00_check_rev(&rt2x00dev->chip, 0)) {
ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
return -ENODEV;
}
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 9845e58..d1ad525 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -751,14 +751,16 @@
return (chipset->rf == chip);
}
-static inline u16 rt2x00_get_rev(const struct rt2x00_chip *chipset)
+static inline u16 rt2x00_rev(const struct rt2x00_chip *chipset)
{
return chipset->rev;
}
-static inline u16 rt2x00_rev(const struct rt2x00_chip *chipset, const u32 mask)
+static inline u16 rt2x00_check_rev(const struct rt2x00_chip *chipset,
+ const u32 rev)
{
- return chipset->rev & mask;
+ return (((chipset->rev & 0xffff0) == rev) &&
+ !!(chipset->rev & 0x0000f));
}
/*
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 46c8c08..dc640bf 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -1486,7 +1486,7 @@
rt73usb_register_read(rt2x00dev, MAC_CSR0, ®);
rt2x00_set_chip(rt2x00dev, RT2571, value, reg);
- if (!rt2x00_rev(&rt2x00dev->chip, 0x25730)) {
+ if (!rt2x00_check_rev(&rt2x00dev->chip, 0x25730)) {
ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
return -ENODEV;
}
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c
index a83c3db..c93d3d2 100644
--- a/drivers/oprofile/cpu_buffer.c
+++ b/drivers/oprofile/cpu_buffer.c
@@ -64,6 +64,8 @@
b->head_pos = 0;
b->sample_received = 0;
b->sample_lost_overflow = 0;
+ b->backtrace_aborted = 0;
+ b->sample_invalid_eip = 0;
b->cpu = i;
INIT_DELAYED_WORK(&b->work, wq_sync_buffer);
}
@@ -175,6 +177,11 @@
cpu_buf->sample_received++;
+ if (pc == ESCAPE_CODE) {
+ cpu_buf->sample_invalid_eip++;
+ return 0;
+ }
+
if (nr_available_slots(cpu_buf) < 3) {
cpu_buf->sample_lost_overflow++;
return 0;
diff --git a/drivers/oprofile/cpu_buffer.h b/drivers/oprofile/cpu_buffer.h
index 49900d9..c66c025 100644
--- a/drivers/oprofile/cpu_buffer.h
+++ b/drivers/oprofile/cpu_buffer.h
@@ -42,6 +42,7 @@
unsigned long sample_received;
unsigned long sample_lost_overflow;
unsigned long backtrace_aborted;
+ unsigned long sample_invalid_eip;
int cpu;
struct delayed_work work;
} ____cacheline_aligned;
diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
index f0acb66..d1f6d77 100644
--- a/drivers/oprofile/oprofile_stats.c
+++ b/drivers/oprofile/oprofile_stats.c
@@ -26,6 +26,8 @@
cpu_buf = &cpu_buffer[i];
cpu_buf->sample_received = 0;
cpu_buf->sample_lost_overflow = 0;
+ cpu_buf->backtrace_aborted = 0;
+ cpu_buf->sample_invalid_eip = 0;
}
atomic_set(&oprofile_stats.sample_lost_no_mm, 0);
@@ -61,6 +63,8 @@
&cpu_buf->sample_lost_overflow);
oprofilefs_create_ro_ulong(sb, cpudir, "backtrace_aborted",
&cpu_buf->backtrace_aborted);
+ oprofilefs_create_ro_ulong(sb, cpudir, "sample_invalid_eip",
+ &cpu_buf->sample_invalid_eip);
}
oprofilefs_create_ro_atomic(sb, dir, "sample_lost_no_mm",
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index cbde770..e5cdc02 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -36,7 +36,9 @@
help
The RTC device that will be used to (re)initialize the system
clock, usually rtc0. Initialization is done when the system
- starts up, and when it resumes from a low power state.
+ starts up, and when it resumes from a low power state. This
+ device should record time in UTC, since the kernel won't do
+ timezone correction.
The driver for this RTC device must be loaded before late_initcall
functions run, so it must usually be statically linked.
@@ -133,8 +135,8 @@
The first seven registers on these chips hold an RTC, and other
registers may add features such as NVRAM, a trickle charger for
- the RTC/NVRAM backup power, and alarms. This driver may not
- expose all those available chip features.
+ the RTC/NVRAM backup power, and alarms. NVRAM is visible in
+ sysfs, but other chip features may not be available.
This driver can also be built as a module. If so, the module
will be called rtc-ds1307.
diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c
index 1785272..33c0e98 100644
--- a/drivers/rtc/hctosys.c
+++ b/drivers/rtc/hctosys.c
@@ -47,8 +47,8 @@
do_settimeofday(&tv);
dev_info(rtc->dev.parent,
- "setting the system clock to "
- "%d-%02d-%02d %02d:%02d:%02d (%u)\n",
+ "setting system clock to "
+ "%d-%02d-%02d %02d:%02d:%02d UTC (%u)\n",
tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec,
(unsigned int) tv.tv_sec);
diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index db6f3f0..bc1c7fe 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -89,6 +89,7 @@
struct ds1307 {
u8 reg_addr;
+ bool has_nvram;
u8 regs[8];
enum ds_type type;
struct i2c_msg msg[2];
@@ -242,6 +243,87 @@
.set_time = ds1307_set_time,
};
+/*----------------------------------------------------------------------*/
+
+#define NVRAM_SIZE 56
+
+static ssize_t
+ds1307_nvram_read(struct kobject *kobj, struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct i2c_client *client;
+ struct ds1307 *ds1307;
+ struct i2c_msg msg[2];
+ int result;
+
+ client = to_i2c_client(container_of(kobj, struct device, kobj));
+ ds1307 = i2c_get_clientdata(client);
+
+ if (unlikely(off >= NVRAM_SIZE))
+ return 0;
+ if ((off + count) > NVRAM_SIZE)
+ count = NVRAM_SIZE - off;
+ if (unlikely(!count))
+ return count;
+
+ msg[0].addr = client->addr;
+ msg[0].flags = 0;
+ msg[0].len = 1;
+ msg[0].buf = buf;
+
+ buf[0] = 8 + off;
+
+ msg[1].addr = client->addr;
+ msg[1].flags = I2C_M_RD;
+ msg[1].len = count;
+ msg[1].buf = buf;
+
+ result = i2c_transfer(to_i2c_adapter(client->dev.parent), msg, 2);
+ if (result != 2) {
+ dev_err(&client->dev, "%s error %d\n", "nvram read", result);
+ return -EIO;
+ }
+ return count;
+}
+
+static ssize_t
+ds1307_nvram_write(struct kobject *kobj, struct bin_attribute *attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct i2c_client *client;
+ u8 buffer[NVRAM_SIZE + 1];
+ int ret;
+
+ client = to_i2c_client(container_of(kobj, struct device, kobj));
+
+ if (unlikely(off >= NVRAM_SIZE))
+ return -EFBIG;
+ if ((off + count) > NVRAM_SIZE)
+ count = NVRAM_SIZE - off;
+ if (unlikely(!count))
+ return count;
+
+ buffer[0] = 8 + off;
+ memcpy(buffer + 1, buf, count);
+
+ ret = i2c_master_send(client, buffer, count + 1);
+ return (ret < 0) ? ret : (ret - 1);
+}
+
+static struct bin_attribute nvram = {
+ .attr = {
+ .name = "nvram",
+ .mode = S_IRUGO | S_IWUSR,
+ .owner = THIS_MODULE,
+ },
+
+ .read = ds1307_nvram_read,
+ .write = ds1307_nvram_write,
+ .size = NVRAM_SIZE,
+};
+
+/*----------------------------------------------------------------------*/
+
static struct i2c_driver ds1307_driver;
static int __devinit ds1307_probe(struct i2c_client *client)
@@ -413,6 +495,14 @@
goto exit_free;
}
+ if (chip->nvram56) {
+ err = sysfs_create_bin_file(&client->dev.kobj, &nvram);
+ if (err == 0) {
+ ds1307->has_nvram = true;
+ dev_info(&client->dev, "56 bytes nvram\n");
+ }
+ }
+
return 0;
exit_bad:
@@ -432,6 +522,9 @@
{
struct ds1307 *ds1307 = i2c_get_clientdata(client);
+ if (ds1307->has_nvram)
+ sysfs_remove_bin_file(&client->dev.kobj, &nvram);
+
rtc_device_unregister(ds1307->rtc);
kfree(ds1307);
return 0;
diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c
index bb53c09..d9e848d 100644
--- a/drivers/rtc/rtc-ds1553.c
+++ b/drivers/rtc/rtc-ds1553.c
@@ -291,7 +291,7 @@
static struct bin_attribute ds1553_nvram_attr = {
.attr = {
.name = "nvram",
- .mode = S_IRUGO | S_IWUGO,
+ .mode = S_IRUGO | S_IWUSR,
},
.size = RTC_OFFSET,
.read = ds1553_nvram_read,
diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c
index c535b78..2e73f0b 100644
--- a/drivers/rtc/rtc-ds1742.c
+++ b/drivers/rtc/rtc-ds1742.c
@@ -160,10 +160,13 @@
static struct bin_attribute ds1742_nvram_attr = {
.attr = {
.name = "nvram",
- .mode = S_IRUGO | S_IWUGO,
+ .mode = S_IRUGO | S_IWUSR,
},
.read = ds1742_nvram_read,
.write = ds1742_nvram_write,
+ /* REVISIT: size in sysfs won't match actual size... if it's
+ * not a constant, each RTC should have its own attribute.
+ */
};
static int __devinit ds1742_rtc_probe(struct platform_device *pdev)
diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
index 2bad163..cd0bbc0 100644
--- a/drivers/rtc/rtc-m48t59.c
+++ b/drivers/rtc/rtc-m48t59.c
@@ -353,11 +353,12 @@
static struct bin_attribute m48t59_nvram_attr = {
.attr = {
.name = "nvram",
- .mode = S_IRUGO | S_IWUGO,
+ .mode = S_IRUGO | S_IWUSR,
.owner = THIS_MODULE,
},
.read = m48t59_nvram_read,
.write = m48t59_nvram_write,
+ .size = M48T59_NVRAM_SIZE,
};
static int __devinit m48t59_rtc_probe(struct platform_device *pdev)
diff --git a/drivers/rtc/rtc-stk17ta8.c b/drivers/rtc/rtc-stk17ta8.c
index 8288b6b..a265da7 100644
--- a/drivers/rtc/rtc-stk17ta8.c
+++ b/drivers/rtc/rtc-stk17ta8.c
@@ -291,7 +291,7 @@
static struct bin_attribute stk17ta8_nvram_attr = {
.attr = {
.name = "nvram",
- .mode = S_IRUGO | S_IWUGO,
+ .mode = S_IRUGO | S_IWUSR,
.owner = THIS_MODULE,
},
.size = RTC_OFFSET,
diff --git a/drivers/scsi/aic94xx/aic94xx_sds.c b/drivers/scsi/aic94xx/aic94xx_sds.c
index 5b0932f..06509bf 100644
--- a/drivers/scsi/aic94xx/aic94xx_sds.c
+++ b/drivers/scsi/aic94xx/aic94xx_sds.c
@@ -377,7 +377,7 @@
#define FLASH_RESET 0xF0
-#define FLASH_SIZE 0x200000
+#define ASD_FLASH_SIZE 0x200000
#define FLASH_DIR_COOKIE "*** ADAPTEC FLASH DIRECTORY *** "
#define FLASH_NEXT_ENTRY_OFFS 0x2000
#define FLASH_MAX_DIR_ENTRIES 32
@@ -609,7 +609,7 @@
struct asd_flash_dir *flash_dir)
{
u32 v;
- for (v = 0; v < FLASH_SIZE; v += FLASH_NEXT_ENTRY_OFFS) {
+ for (v = 0; v < ASD_FLASH_SIZE; v += FLASH_NEXT_ENTRY_OFFS) {
asd_read_flash_seg(asd_ha, flash_dir, v,
sizeof(FLASH_DIR_COOKIE)-1);
if (memcmp(flash_dir->cookie, FLASH_DIR_COOKIE,
diff --git a/drivers/serial/8250_pnp.c b/drivers/serial/8250_pnp.c
index 926f58a..1de098e 100644
--- a/drivers/serial/8250_pnp.c
+++ b/drivers/serial/8250_pnp.c
@@ -69,6 +69,8 @@
{ "CTL3001", 0 },
/* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
{ "CTL3011", 0 },
+ /* Davicom ISA 33.6K Modem */
+ { "DAV0336", 0 },
/* Creative */
/* Creative Modem Blaster Flash56 DI5601-1 */
{ "DMB1032", 0 },
@@ -345,6 +347,11 @@
/* Fujitsu Wacom Tablet PC devices */
{ "FUJ02E5", 0 },
{ "FUJ02E6", 0 },
+ /*
+ * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 in
+ * disguise)
+ */
+ { "LTS0001", 0 },
/* Rockwell's (PORALiNK) 33600 INT PNP */
{ "WCI0003", 0 },
/* Unkown PnP modems */
@@ -432,7 +439,8 @@
}
memset(&port, 0, sizeof(struct uart_port));
- port.irq = pnp_irq(dev, 0);
+ if (pnp_irq_valid(dev, 0))
+ port.irq = pnp_irq(dev, 0);
if (pnp_port_valid(dev, 0)) {
port.iobase = pnp_port_start(dev, 0);
port.iotype = UPIO_PORT;
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 4d6b3c5..111da57 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -204,8 +204,6 @@
*/
static void atmel_stop_tx(struct uart_port *port)
{
- struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
-
UART_PUT_IDR(port, ATMEL_US_TXRDY);
}
@@ -214,8 +212,6 @@
*/
static void atmel_start_tx(struct uart_port *port)
{
- struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
-
UART_PUT_IER(port, ATMEL_US_TXRDY);
}
@@ -224,8 +220,6 @@
*/
static void atmel_stop_rx(struct uart_port *port)
{
- struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
-
UART_PUT_IDR(port, ATMEL_US_RXRDY);
}
@@ -409,7 +403,6 @@
*/
static int atmel_startup(struct uart_port *port)
{
- struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
int retval;
/*
@@ -456,8 +449,6 @@
*/
static void atmel_shutdown(struct uart_port *port)
{
- struct atmel_uart_port *atmel_port = (struct atmel_uart_port *) port;
-
/*
* Disable all interrupts, port and break condition.
*/
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index f523cdf..a4e23cf 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -1,426 +1,10 @@
-/* $Id: serial.c,v 1.25 2004/09/29 10:33:49 starvik Exp $
- *
+/*
* Serial port driver for the ETRAX 100LX chip
*
- * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Axis Communications AB
+ * Copyright (C) 1998-2007 Axis Communications AB
*
* Many, many authors. Based once upon a time on serial.c for 16x50.
*
- * $Log: serial.c,v $
- * Revision 1.25 2004/09/29 10:33:49 starvik
- * Resolved a dealock when printing debug from kernel.
- *
- * Revision 1.24 2004/08/27 23:25:59 johana
- * rs_set_termios() must call change_speed() if c_iflag has changed or
- * automatic XOFF handling will be enabled and transmitter will stop
- * if 0x13 is received.
- *
- * Revision 1.23 2004/08/24 06:57:13 starvik
- * More whitespace cleanup
- *
- * Revision 1.22 2004/08/24 06:12:20 starvik
- * Whitespace cleanup
- *
- * Revision 1.20 2004/05/24 12:00:20 starvik
- * Big merge of stuff from Linux 2.4 (e.g. manual mode for the serial port).
- *
- * Revision 1.19 2004/05/17 13:12:15 starvik
- * Kernel console hook
- * Big merge from Linux 2.4 still pending.
- *
- * Revision 1.18 2003/10/28 07:18:30 starvik
- * Compiles with debug info
- *
- * Revision 1.17 2003/07/04 08:27:37 starvik
- * Merge of Linux 2.5.74
- *
- * Revision 1.16 2003/06/13 10:05:19 johana
- * Help the user to avoid trouble by:
- * Forcing mixed mode for status/control lines if not all pins are used.
- *
- * Revision 1.15 2003/06/13 09:43:01 johana
- * Merged in the following changes from os/linux/arch/cris/drivers/serial.c
- * + some minor changes to reduce diff.
- *
- * Revision 1.49 2003/05/30 11:31:54 johana
- * Merged in change-branch--serial9bit that adds CMSPAR support for sticky
- * parity (mark/space)
- *
- * Revision 1.48 2003/05/30 11:03:57 johana
- * Implemented rs_send_xchar() by disabling the DMA and writing manually.
- * Added e100_disable_txdma_channel() and e100_enable_txdma_channel().
- * Fixed rs_throttle() and rs_unthrottle() to properly call rs_send_xchar
- * instead of setting info->x_char and check the CRTSCTS flag before
- * controlling the rts pin.
- *
- * Revision 1.14 2003/04/09 08:12:44 pkj
- * Corrected typo changes made upstream.
- *
- * Revision 1.13 2003/04/09 05:20:47 starvik
- * Merge of Linux 2.5.67
- *
- * Revision 1.11 2003/01/22 06:48:37 starvik
- * Fixed warnings issued by GCC 3.2.1
- *
- * Revision 1.9 2002/12/13 09:07:47 starvik
- * Alert user that RX_TIMEOUT_TICKS==0 doesn't work
- *
- * Revision 1.8 2002/12/11 13:13:57 starvik
- * Added arch/ to v10 specific includes
- * Added fix from Linux 2.4 in serial.c (flush_to_flip_buffer)
- *
- * Revision 1.7 2002/12/06 07:13:57 starvik
- * Corrected work queue stuff
- * Removed CONFIG_ETRAX_SERIAL_FLUSH_DMA_FAST
- *
- * Revision 1.6 2002/11/21 07:17:46 starvik
- * Change static inline to extern inline where otherwise outlined with gcc-3.2
- *
- * Revision 1.5 2002/11/14 15:59:49 starvik
- * Linux 2.5 port of the latest serial driver from 2.4. The work queue stuff
- * probably doesn't work yet.
- *
- * Revision 1.42 2002/11/05 09:08:47 johana
- * Better implementation of rs_stop() and rs_start() that uses the XOFF
- * register to start/stop transmission.
- * change_speed() also initilises XOFF register correctly so that
- * auto_xoff is enabled when IXON flag is set by user.
- * This gives fast XOFF response times.
- *
- * Revision 1.41 2002/11/04 18:40:57 johana
- * Implemented rs_stop() and rs_start().
- * Simple tests using hwtestserial indicates that this should be enough
- * to make it work.
- *
- * Revision 1.40 2002/10/14 05:33:18 starvik
- * RS-485 uses fast timers even if SERIAL_FAST_TIMER is disabled
- *
- * Revision 1.39 2002/09/30 21:00:57 johana
- * Support for CONFIG_ETRAX_SERx_DTR_RI_DSR_CD_MIXED where the status and
- * control pins can be mixed between PA and PB.
- * If no serial port uses MIXED old solution is used
- * (saves a few bytes and cycles).
- * control_pins struct uses masks instead of bit numbers.
- * Corrected dummy values and polarity in line_info() so
- * /proc/tty/driver/serial is now correct.
- * (the E100_xxx_GET() macros is really active low - perhaps not obvious)
- *
- * Revision 1.38 2002/08/23 11:01:36 starvik
- * Check that serial port is enabled in all interrupt handlers to avoid
- * restarts of DMA channels not assigned to serial ports
- *
- * Revision 1.37 2002/08/13 13:02:37 bjornw
- * Removed some warnings because of unused code
- *
- * Revision 1.36 2002/08/08 12:50:01 starvik
- * Serial interrupt is shared with synchronous serial port driver
- *
- * Revision 1.35 2002/06/03 10:40:49 starvik
- * Increased RS-485 RTS toggle timer to 2 characters
- *
- * Revision 1.34 2002/05/28 18:59:36 johana
- * Whitespace and comment fixing to be more like etrax100ser.c 1.71.
- *
- * Revision 1.33 2002/05/28 17:55:43 johana
- * RS-485 uses FAST_TIMER if enabled, and starts a short (one char time)
- * timer from tranismit_chars (interrupt context).
- * The timer toggles RTS in interrupt context when expired giving minimum
- * latencies.
- *
- * Revision 1.32 2002/05/22 13:58:00 johana
- * Renamed rs_write() to raw_write() and made it inline.
- * New rs_write() handles RS-485 if configured and enabled
- * (moved code from e100_write_rs485()).
- * RS-485 ioctl's uses copy_from_user() instead of verify_area().
- *
- * Revision 1.31 2002/04/22 11:20:03 johana
- * Updated copyright years.
- *
- * Revision 1.30 2002/04/22 09:39:12 johana
- * RS-485 support compiles.
- *
- * Revision 1.29 2002/01/14 16:10:01 pkj
- * Allocate the receive buffers dynamically. The static 4kB buffer was
- * too small for the peaks. This means that we can get rid of the extra
- * buffer and the copying to it. It also means we require less memory
- * under normal operations, but can use more when needed (there is a
- * cap at 64kB for safety reasons). If there is no memory available
- * we panic(), and die a horrible death...
- *
- * Revision 1.28 2001/12/18 15:04:53 johana
- * Cleaned up write_rs485() - now it works correctly without padding extra
- * char.
- * Added sane default initialisation of rs485.
- * Added #ifdef around dummy variables.
- *
- * Revision 1.27 2001/11/29 17:00:41 pkj
- * 2kB seems to be too small a buffer when using 921600 bps,
- * so increase it to 4kB (this was already done for the elinux
- * version of the serial driver).
- *
- * Revision 1.26 2001/11/19 14:20:41 pkj
- * Minor changes to comments and unused code.
- *
- * Revision 1.25 2001/11/12 20:03:43 pkj
- * Fixed compiler warnings.
- *
- * Revision 1.24 2001/11/12 15:10:05 pkj
- * Total redesign of the receiving part of the serial driver.
- * Uses eight chained descriptors to write to a 4kB buffer.
- * This data is then serialised into a 2kB buffer. From there it
- * is copied into the TTY's flip buffers when they become available.
- * A lot of copying, and the sizes of the buffers might need to be
- * tweaked, but all in all it should work better than the previous
- * version, without the need to modify the TTY code in any way.
- * Also note that erroneous bytes are now correctly marked in the
- * flag buffers (instead of always marking the first byte).
- *
- * Revision 1.23 2001/10/30 17:53:26 pkj
- * * Set info->uses_dma to 0 when a port is closed.
- * * Mark the timer1 interrupt as a fast one (SA_INTERRUPT).
- * * Call start_flush_timer() in start_receive() if
- * CONFIG_ETRAX_SERIAL_FLUSH_DMA_FAST is defined.
- *
- * Revision 1.22 2001/10/30 17:44:03 pkj
- * Use %lu for received and transmitted counters in line_info().
- *
- * Revision 1.21 2001/10/30 17:40:34 pkj
- * Clean-up. The only change to functionality is that
- * CONFIG_ETRAX_SERIAL_RX_TIMEOUT_TICKS(=5) is used instead of
- * MAX_FLUSH_TIME(=8).
- *
- * Revision 1.20 2001/10/30 15:24:49 johana
- * Added char_time stuff from 2.0 driver.
- *
- * Revision 1.19 2001/10/30 15:23:03 johana
- * Merged with 1.13.2 branch + fixed indentation
- * and changed CONFIG_ETRAX100_XYS to CONFIG_ETRAX_XYZ
- *
- * Revision 1.18 2001/09/24 09:27:22 pkj
- * Completed ext_baud_table[] in cflag_to_baud() and cflag_to_etrax_baud().
- *
- * Revision 1.17 2001/08/24 11:32:49 ronny
- * More fixes for the CONFIG_ETRAX_SERIAL_PORT0 define.
- *
- * Revision 1.16 2001/08/24 07:56:22 ronny
- * Added config ifdefs around ser0 irq requests.
- *
- * Revision 1.15 2001/08/16 09:10:31 bjarne
- * serial.c - corrected the initialization of rs_table, the wrong defines
- * where used.
- * Corrected a test in timed_flush_handler.
- * Changed configured to enabled.
- * serial.h - Changed configured to enabled.
- *
- * Revision 1.14 2001/08/15 07:31:23 bjarne
- * Introduced two new members to the e100_serial struct.
- * configured - Will be set to 1 if the port has been configured in .config
- * uses_dma - Should be set to 1 if the port uses DMA. Currently it is set
- * to 1
- * when a port is opened. This is used to limit the DMA interrupt
- * routines to only manipulate DMA channels actually used by the
- * serial driver.
- *
- * Revision 1.13.2.2 2001/10/17 13:57:13 starvik
- * Receiver was broken by the break fixes
- *
- * Revision 1.13.2.1 2001/07/20 13:57:39 ronny
- * Merge with new stuff from etrax100ser.c. Works but haven't checked stuff
- * like break handling.
- *
- * Revision 1.13 2001/05/09 12:40:31 johana
- * Use DMA_NBR and IRQ_NBR defines from dma.h and irq.h
- *
- * Revision 1.12 2001/04/19 12:23:07 bjornw
- * CONFIG_RS485 -> CONFIG_ETRAX_RS485
- *
- * Revision 1.11 2001/04/05 14:29:48 markusl
- * Updated according to review remarks i.e.
- * -Use correct types in port structure to avoid compiler warnings
- * -Try to use IO_* macros whenever possible
- * -Open should never return -EBUSY
- *
- * Revision 1.10 2001/03/05 13:14:07 bjornw
- * Another spelling fix
- *
- * Revision 1.9 2001/02/23 13:46:38 bjornw
- * Spellling check
- *
- * Revision 1.8 2001/01/23 14:56:35 markusl
- * Made use of ser1 optional
- * Needed by USB
- *
- * Revision 1.7 2001/01/19 16:14:48 perf
- * Added kernel options for serial ports 234.
- * Changed option names from CONFIG_ETRAX100_XYZ to CONFIG_ETRAX_XYZ.
- *
- * Revision 1.6 2000/11/22 16:36:09 bjornw
- * Please marketing by using the correct case when spelling Etrax.
- *
- * Revision 1.5 2000/11/21 16:43:37 bjornw
- * Fixed so it compiles under CONFIG_SVINTO_SIM
- *
- * Revision 1.4 2000/11/15 17:34:12 bjornw
- * Added a timeout timer for flushing input channels. The interrupt-based
- * fast flush system should be easy to merge with this later (works the same
- * way, only with an irq instead of a system timer_list)
- *
- * Revision 1.3 2000/11/13 17:19:57 bjornw
- * * Incredibly, this almost complete rewrite of serial.c worked (at least
- * for output) the first time.
- *
- * Items worth noticing:
- *
- * No Etrax100 port 1 workarounds (does only compile on 2.4 anyway now)
- * RS485 is not ported (why can't it be done in userspace as on x86 ?)
- * Statistics done through async_icount - if any more stats are needed,
- * that's the place to put them or in an arch-dep version of it.
- * timeout_interrupt and the other fast timeout stuff not ported yet
- * There be dragons in this 3k+ line driver
- *
- * Revision 1.2 2000/11/10 16:50:28 bjornw
- * First shot at a 2.4 port, does not compile totally yet
- *
- * Revision 1.1 2000/11/10 16:47:32 bjornw
- * Added verbatim copy of rev 1.49 etrax100ser.c from elinux
- *
- * Revision 1.49 2000/10/30 15:47:14 tobiasa
- * Changed version number.
- *
- * Revision 1.48 2000/10/25 11:02:43 johana
- * Changed %ul to %lu in printf's
- *
- * Revision 1.47 2000/10/18 15:06:53 pkj
- * Compile correctly with CONFIG_ETRAX_SERIAL_FLUSH_DMA_FAST and
- * CONFIG_ETRAX_SERIAL_PROC_ENTRY together.
- * Some clean-up of the /proc/serial file.
- *
- * Revision 1.46 2000/10/16 12:59:40 johana
- * Added CONFIG_ETRAX_SERIAL_PROC_ENTRY for statistics and debug info.
- *
- * Revision 1.45 2000/10/13 17:10:59 pkj
- * Do not flush DMAs while flipping TTY buffers.
- *
- * Revision 1.44 2000/10/13 16:34:29 pkj
- * Added a delay in ser_interrupt() for 2.3ms when an error is detected.
- * We do not know why this delay is required yet, but without it the
- * irmaflash program does not work (this was the program that needed
- * the ser_interrupt() to be needed in the first place). This should not
- * affect normal use of the serial ports.
- *
- * Revision 1.43 2000/10/13 16:30:44 pkj
- * New version of the fast flush of serial buffers code. This time
- * it is localized to the serial driver and uses a fast timer to
- * do the work.
- *
- * Revision 1.42 2000/10/13 14:54:26 bennyo
- * Fix for switching RTS when using rs485
- *
- * Revision 1.41 2000/10/12 11:43:44 pkj
- * Cleaned up a number of comments.
- *
- * Revision 1.40 2000/10/10 11:58:39 johana
- * Made RS485 support generic for all ports.
- * Toggle rts in interrupt if no delay wanted.
- * WARNING: No true transmitter empty check??
- * Set d_wait bit when sending data so interrupt is delayed until
- * fifo flushed. (Fix tcdrain() problem)
- *
- * Revision 1.39 2000/10/04 16:08:02 bjornw
- * * Use virt_to_phys etc. for DMA addresses
- * * Removed CONFIG_FLUSH_DMA_FAST hacks
- * * Indentation fix
- *
- * Revision 1.38 2000/10/02 12:27:10 mattias
- * * added variable used when using fast flush on serial dma.
- * (CONFIG_FLUSH_DMA_FAST)
- *
- * Revision 1.37 2000/09/27 09:44:24 pkj
- * Uncomment definition of SERIAL_HANDLE_EARLY_ERRORS.
- *
- * Revision 1.36 2000/09/20 13:12:52 johana
- * Support for CONFIG_ETRAX_SERIAL_RX_TIMEOUT_TICKS:
- * Number of timer ticks between flush of receive fifo (1 tick = 10ms).
- * Try 0-3 for low latency applications. Approx 5 for high load
- * applications (e.g. PPP). Maybe this should be more adaptive some day...
- *
- * Revision 1.35 2000/09/20 10:36:08 johana
- * Typo in get_lsr_info()
- *
- * Revision 1.34 2000/09/20 10:29:59 johana
- * Let rs_chars_in_buffer() check fifo content as well.
- * get_lsr_info() might work now (not tested).
- * Easier to change the port to debug.
- *
- * Revision 1.33 2000/09/13 07:52:11 torbjore
- * Support RS485
- *
- * Revision 1.32 2000/08/31 14:45:37 bjornw
- * After sending a break we need to reset the transmit DMA channel
- *
- * Revision 1.31 2000/06/21 12:13:29 johana
- * Fixed wait for all chars sent when closing port.
- * (Used to always take 1 second!)
- * Added shadows for directions of status/ctrl signals.
- *
- * Revision 1.30 2000/05/29 16:27:55 bjornw
- * Simulator ifdef moved a bit
- *
- * Revision 1.29 2000/05/09 09:40:30 mattias
- * * Added description of dma registers used in timeout_interrupt
- * * Removed old code
- *
- * Revision 1.28 2000/05/08 16:38:58 mattias
- * * Bugfix for flushing fifo in timeout_interrupt
- * Problem occurs when bluetooth stack waits for a small number of bytes
- * containing an event acknowledging free buffers in bluetooth HW
- * As before, data was stuck in fifo until more data came on uart and
- * flushed it up to the stack.
- *
- * Revision 1.27 2000/05/02 09:52:28 jonasd
- * Added fix for peculiar etrax behaviour when eop is forced on an empty
- * fifo. This is used when flashing the IRMA chip. Disabled by default.
- *
- * Revision 1.26 2000/03/29 15:32:02 bjornw
- * 2.0.34 updates
- *
- * Revision 1.25 2000/02/16 16:59:36 bjornw
- * * Receive DMA directly into the flip-buffer, eliminating an intermediary
- * receive buffer and a memcpy. Will avoid some overruns.
- * * Error message on debug port if an overrun or flip buffer overrun occurs.
- * * Just use the first byte in the flag flip buffer for errors.
- * * Check for timeout on the serial ports only each 5/100 s, not 1/100.
- *
- * Revision 1.24 2000/02/09 18:02:28 bjornw
- * * Clear serial errors (overrun, framing, parity) correctly. Before, the
- * receiver would get stuck if an error occurred and we did not restart
- * the input DMA.
- * * Cosmetics (indentation, some code made into inlines)
- * * Some more debug options
- * * Actually shut down the serial port (DMA irq, DMA reset, receiver stop)
- * when the last open is closed. Corresponding fixes in startup().
- * * rs_close() "tx FIFO wait" code moved into right place, bug & -> && fixed
- * and make a special case out of port 1 (R_DMA_CHx_STATUS is broken for that)
- * * e100_disable_rx/enable_rx just disables/enables the receiver, not RTS
- *
- * Revision 1.23 2000/01/24 17:46:19 johana
- * Wait for flush of DMA/FIFO when closing port.
- *
- * Revision 1.22 2000/01/20 18:10:23 johana
- * Added TIOCMGET ioctl to return modem status.
- * Implemented modem status/control that works with the extra signals
- * (DTR, DSR, RI,CD) as well.
- * 3 different modes supported:
- * ser0 on PB (Bundy), ser1 on PB (Lisa) and ser2 on PA (Bundy)
- * Fixed DEF_TX value that caused the serial transmitter pin (txd) to go to 0 when
- * closing the last filehandle, NASTY!.
- * Added break generation, not tested though!
- * Use IRQF_SHARED when request_irq() for ser2 and ser3 (shared with) par0 and par1.
- * You can't use them at the same time (yet..), but you can hopefully switch
- * between ser2/par0, ser3/par1 with the same kernel config.
- * Replaced some magic constants with defines
- *
- *
*/
static char *serial_version = "$Revision: 1.25 $";
@@ -446,6 +30,7 @@
#include <asm/io.h>
#include <asm/irq.h>
+#include <asm/dma.h>
#include <asm/system.h>
#include <linux/delay.h>
@@ -454,8 +39,9 @@
/* non-arch dependent serial structures are in linux/serial.h */
#include <linux/serial.h>
/* while we keep our own stuff (struct e100_serial) in a local .h file */
-#include "serial.h"
+#include "crisv10.h"
#include <asm/fasttimer.h>
+#include <asm/arch/io_interface_mux.h>
#ifdef CONFIG_ETRAX_SERIAL_FAST_TIMER
#ifndef CONFIG_ETRAX_FAST_TIMER
@@ -504,18 +90,6 @@
from eLinux */
#define SERIAL_HANDLE_EARLY_ERRORS
-/* Defined and used in n_tty.c, but we need it here as well */
-#define TTY_THRESHOLD_THROTTLE 128
-
-/* Due to buffersizes and threshold values, our SERIAL_DESCR_BUF_SIZE
- * must not be to high or flow control won't work if we leave it to the tty
- * layer so we have our own throttling in flush_to_flip
- * TTY_FLIPBUF_SIZE=512,
- * TTY_THRESHOLD_THROTTLE/UNTHROTTLE=128
- * BUF_SIZE can't be > 128
- */
-#define CRIS_BUF_SIZE 512
-
/* Currently 16 descriptors x 128 bytes = 2048 bytes */
#define SERIAL_DESCR_BUF_SIZE 256
@@ -588,13 +162,13 @@
static void change_speed(struct e100_serial *info);
static void rs_throttle(struct tty_struct * tty);
static void rs_wait_until_sent(struct tty_struct *tty, int timeout);
-static int rs_write(struct tty_struct * tty, int from_user,
- const unsigned char *buf, int count);
+static int rs_write(struct tty_struct *tty,
+ const unsigned char *buf, int count);
#ifdef CONFIG_ETRAX_RS485
-static int e100_write_rs485(struct tty_struct * tty, int from_user,
- const unsigned char *buf, int count);
+static int e100_write_rs485(struct tty_struct *tty,
+ const unsigned char *buf, int count);
#endif
-static int get_lsr_info(struct e100_serial * info, unsigned int *value);
+static int get_lsr_info(struct e100_serial *info, unsigned int *value);
#define DEF_BAUD 115200 /* 115.2 kbit/s */
@@ -679,20 +253,39 @@
.rx_ctrl = DEF_RX,
.tx_ctrl = DEF_TX,
.iseteop = 2,
+ .dma_owner = dma_ser0,
+ .io_if = if_serial_0,
#ifdef CONFIG_ETRAX_SERIAL_PORT0
.enabled = 1,
#ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA6_OUT
.dma_out_enabled = 1,
+ .dma_out_nbr = SER0_TX_DMA_NBR,
+ .dma_out_irq_nbr = SER0_DMA_TX_IRQ_NBR,
+ .dma_out_irq_flags = IRQF_DISABLED,
+ .dma_out_irq_description = "serial 0 dma tr",
#else
.dma_out_enabled = 0,
+ .dma_out_nbr = UINT_MAX,
+ .dma_out_irq_nbr = 0,
+ .dma_out_irq_flags = 0,
+ .dma_out_irq_description = NULL,
#endif
#ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN
.dma_in_enabled = 1,
+ .dma_in_nbr = SER0_RX_DMA_NBR,
+ .dma_in_irq_nbr = SER0_DMA_RX_IRQ_NBR,
+ .dma_in_irq_flags = IRQF_DISABLED,
+ .dma_in_irq_description = "serial 0 dma rec",
#else
- .dma_in_enabled = 0
+ .dma_in_enabled = 0,
+ .dma_in_nbr = UINT_MAX,
+ .dma_in_irq_nbr = 0,
+ .dma_in_irq_flags = 0,
+ .dma_in_irq_description = NULL,
#endif
#else
.enabled = 0,
+ .io_if_description = NULL,
.dma_out_enabled = 0,
.dma_in_enabled = 0
#endif
@@ -714,20 +307,42 @@
.rx_ctrl = DEF_RX,
.tx_ctrl = DEF_TX,
.iseteop = 3,
+ .dma_owner = dma_ser1,
+ .io_if = if_serial_1,
#ifdef CONFIG_ETRAX_SERIAL_PORT1
.enabled = 1,
+ .io_if_description = "ser1",
#ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA8_OUT
.dma_out_enabled = 1,
+ .dma_out_nbr = SER1_TX_DMA_NBR,
+ .dma_out_irq_nbr = SER1_DMA_TX_IRQ_NBR,
+ .dma_out_irq_flags = IRQF_DISABLED,
+ .dma_out_irq_description = "serial 1 dma tr",
#else
.dma_out_enabled = 0,
+ .dma_out_nbr = UINT_MAX,
+ .dma_out_irq_nbr = 0,
+ .dma_out_irq_flags = 0,
+ .dma_out_irq_description = NULL,
#endif
#ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA9_IN
.dma_in_enabled = 1,
+ .dma_in_nbr = SER1_RX_DMA_NBR,
+ .dma_in_irq_nbr = SER1_DMA_RX_IRQ_NBR,
+ .dma_in_irq_flags = IRQF_DISABLED,
+ .dma_in_irq_description = "serial 1 dma rec",
#else
- .dma_in_enabled = 0
+ .dma_in_enabled = 0,
+ .dma_in_enabled = 0,
+ .dma_in_nbr = UINT_MAX,
+ .dma_in_irq_nbr = 0,
+ .dma_in_irq_flags = 0,
+ .dma_in_irq_description = NULL,
#endif
#else
.enabled = 0,
+ .io_if_description = NULL,
+ .dma_in_irq_nbr = 0,
.dma_out_enabled = 0,
.dma_in_enabled = 0
#endif
@@ -748,20 +363,40 @@
.rx_ctrl = DEF_RX,
.tx_ctrl = DEF_TX,
.iseteop = 0,
+ .dma_owner = dma_ser2,
+ .io_if = if_serial_2,
#ifdef CONFIG_ETRAX_SERIAL_PORT2
.enabled = 1,
+ .io_if_description = "ser2",
#ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA2_OUT
.dma_out_enabled = 1,
+ .dma_out_nbr = SER2_TX_DMA_NBR,
+ .dma_out_irq_nbr = SER2_DMA_TX_IRQ_NBR,
+ .dma_out_irq_flags = IRQF_DISABLED,
+ .dma_out_irq_description = "serial 2 dma tr",
#else
.dma_out_enabled = 0,
+ .dma_out_nbr = UINT_MAX,
+ .dma_out_irq_nbr = 0,
+ .dma_out_irq_flags = 0,
+ .dma_out_irq_description = NULL,
#endif
#ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA3_IN
.dma_in_enabled = 1,
+ .dma_in_nbr = SER2_RX_DMA_NBR,
+ .dma_in_irq_nbr = SER2_DMA_RX_IRQ_NBR,
+ .dma_in_irq_flags = IRQF_DISABLED,
+ .dma_in_irq_description = "serial 2 dma rec",
#else
- .dma_in_enabled = 0
+ .dma_in_enabled = 0,
+ .dma_in_nbr = UINT_MAX,
+ .dma_in_irq_nbr = 0,
+ .dma_in_irq_flags = 0,
+ .dma_in_irq_description = NULL,
#endif
#else
.enabled = 0,
+ .io_if_description = NULL,
.dma_out_enabled = 0,
.dma_in_enabled = 0
#endif
@@ -782,20 +417,40 @@
.rx_ctrl = DEF_RX,
.tx_ctrl = DEF_TX,
.iseteop = 1,
+ .dma_owner = dma_ser3,
+ .io_if = if_serial_3,
#ifdef CONFIG_ETRAX_SERIAL_PORT3
.enabled = 1,
+ .io_if_description = "ser3",
#ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA4_OUT
.dma_out_enabled = 1,
+ .dma_out_nbr = SER3_TX_DMA_NBR,
+ .dma_out_irq_nbr = SER3_DMA_TX_IRQ_NBR,
+ .dma_out_irq_flags = IRQF_DISABLED,
+ .dma_out_irq_description = "serial 3 dma tr",
#else
.dma_out_enabled = 0,
+ .dma_out_nbr = UINT_MAX,
+ .dma_out_irq_nbr = 0,
+ .dma_out_irq_flags = 0,
+ .dma_out_irq_description = NULL,
#endif
#ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA5_IN
.dma_in_enabled = 1,
+ .dma_in_nbr = SER3_RX_DMA_NBR,
+ .dma_in_irq_nbr = SER3_DMA_RX_IRQ_NBR,
+ .dma_in_irq_flags = IRQF_DISABLED,
+ .dma_in_irq_description = "serial 3 dma rec",
#else
- .dma_in_enabled = 0
+ .dma_in_enabled = 0,
+ .dma_in_nbr = UINT_MAX,
+ .dma_in_irq_nbr = 0,
+ .dma_in_irq_flags = 0,
+ .dma_in_irq_description = NULL
#endif
#else
.enabled = 0,
+ .io_if_description = NULL,
.dma_out_enabled = 0,
.dma_in_enabled = 0
#endif
@@ -1416,12 +1071,11 @@
{
unsigned long flags;
- save_flags(flags);
- cli();
+ local_irq_save(flags);
*e100_modem_pins[info->line].dtr_shadow &= ~mask;
*e100_modem_pins[info->line].dtr_shadow |= (set ? 0 : mask);
*e100_modem_pins[info->line].dtr_port = *e100_modem_pins[info->line].dtr_shadow;
- restore_flags(flags);
+ local_irq_restore(flags);
}
#ifdef SERIAL_DEBUG_IO
@@ -1440,12 +1094,11 @@
{
#ifndef CONFIG_SVINTO_SIM
unsigned long flags;
- save_flags(flags);
- cli();
+ local_irq_save(flags);
info->rx_ctrl &= ~E100_RTS_MASK;
info->rx_ctrl |= (set ? 0 : E100_RTS_MASK); /* RTS is active low */
info->port[REG_REC_CTRL] = info->rx_ctrl;
- restore_flags(flags);
+ local_irq_restore(flags);
#ifdef SERIAL_DEBUG_IO
printk("ser%i rts %i\n", info->line, set);
#endif
@@ -1463,12 +1116,11 @@
unsigned char mask = e100_modem_pins[info->line].ri_mask;
unsigned long flags;
- save_flags(flags);
- cli();
+ local_irq_save(flags);
*e100_modem_pins[info->line].ri_shadow &= ~mask;
*e100_modem_pins[info->line].ri_shadow |= (set ? 0 : mask);
*e100_modem_pins[info->line].ri_port = *e100_modem_pins[info->line].ri_shadow;
- restore_flags(flags);
+ local_irq_restore(flags);
}
#endif
}
@@ -1481,12 +1133,11 @@
unsigned char mask = e100_modem_pins[info->line].cd_mask;
unsigned long flags;
- save_flags(flags);
- cli();
+ local_irq_save(flags);
*e100_modem_pins[info->line].cd_shadow &= ~mask;
*e100_modem_pins[info->line].cd_shadow |= (set ? 0 : mask);
*e100_modem_pins[info->line].cd_port = *e100_modem_pins[info->line].cd_shadow;
- restore_flags(flags);
+ local_irq_restore(flags);
}
#endif
}
@@ -1560,8 +1211,7 @@
/* Disable output DMA channel for the serial port in question
* ( set to something other then serialX)
*/
- save_flags(flags);
- cli();
+ local_irq_save(flags);
DFLOW(DEBUG_LOG(info->line, "disable_txdma_channel %i\n", info->line));
if (info->line == 0) {
if ((genconfig_shadow & IO_MASK(R_GEN_CONFIG, dma6)) ==
@@ -1589,7 +1239,7 @@
}
}
*R_GEN_CONFIG = genconfig_shadow;
- restore_flags(flags);
+ local_irq_restore(flags);
}
@@ -1597,8 +1247,7 @@
{
unsigned long flags;
- save_flags(flags);
- cli();
+ local_irq_save(flags);
DFLOW(DEBUG_LOG(info->line, "enable_txdma_channel %i\n", info->line));
/* Enable output DMA channel for the serial port in question */
if (info->line == 0) {
@@ -1615,7 +1264,7 @@
genconfig_shadow |= IO_STATE(R_GEN_CONFIG, dma4, serial3);
}
*R_GEN_CONFIG = genconfig_shadow;
- restore_flags(flags);
+ local_irq_restore(flags);
}
static void e100_disable_rxdma_channel(struct e100_serial *info)
@@ -1625,8 +1274,7 @@
/* Disable input DMA channel for the serial port in question
* ( set to something other then serialX)
*/
- save_flags(flags);
- cli();
+ local_irq_save(flags);
if (info->line == 0) {
if ((genconfig_shadow & IO_MASK(R_GEN_CONFIG, dma7)) ==
IO_STATE(R_GEN_CONFIG, dma7, serial0)) {
@@ -1653,7 +1301,7 @@
}
}
*R_GEN_CONFIG = genconfig_shadow;
- restore_flags(flags);
+ local_irq_restore(flags);
}
@@ -1661,8 +1309,7 @@
{
unsigned long flags;
- save_flags(flags);
- cli();
+ local_irq_save(flags);
/* Enable input DMA channel for the serial port in question */
if (info->line == 0) {
genconfig_shadow &= ~IO_MASK(R_GEN_CONFIG, dma7);
@@ -1678,7 +1325,7 @@
genconfig_shadow |= IO_STATE(R_GEN_CONFIG, dma5, serial3);
}
*R_GEN_CONFIG = genconfig_shadow;
- restore_flags(flags);
+ local_irq_restore(flags);
}
#ifdef SERIAL_HANDLE_EARLY_ERRORS
@@ -1785,7 +1432,7 @@
}
static int
-e100_write_rs485(struct tty_struct *tty, int from_user,
+e100_write_rs485(struct tty_struct *tty,
const unsigned char *buf, int count)
{
struct e100_serial * info = (struct e100_serial *)tty->driver_data;
@@ -1798,7 +1445,7 @@
*/
info->rs485.enabled = 1;
/* rs_write now deals with RS485 if enabled */
- count = rs_write(tty, from_user, buf, count);
+ count = rs_write(tty, buf, count);
info->rs485.enabled = old_enabled;
return count;
}
@@ -1836,7 +1483,7 @@
unsigned long flags;
unsigned long xoff;
- save_flags(flags); cli();
+ local_irq_save(flags);
DFLOW(DEBUG_LOG(info->line, "XOFF rs_stop xmit %i\n",
CIRC_CNT(info->xmit.head,
info->xmit.tail,SERIAL_XMIT_SIZE)));
@@ -1848,7 +1495,7 @@
}
*((unsigned long *)&info->port[REG_XOFF]) = xoff;
- restore_flags(flags);
+ local_irq_restore(flags);
}
}
@@ -1860,7 +1507,7 @@
unsigned long flags;
unsigned long xoff;
- save_flags(flags); cli();
+ local_irq_save(flags);
DFLOW(DEBUG_LOG(info->line, "XOFF rs_start xmit %i\n",
CIRC_CNT(info->xmit.head,
info->xmit.tail,SERIAL_XMIT_SIZE)));
@@ -1875,7 +1522,7 @@
info->xmit.head != info->xmit.tail && info->xmit.buf)
e100_enable_serial_tx_ready_irq(info);
- restore_flags(flags);
+ local_irq_restore(flags);
}
}
@@ -2055,8 +1702,7 @@
static void flush_timeout_function(unsigned long data);
#define START_FLUSH_FAST_TIMER_TIME(info, string, usec) {\
unsigned long timer_flags; \
- save_flags(timer_flags); \
- cli(); \
+ local_irq_save(timer_flags); \
if (fast_timers[info->line].function == NULL) { \
serial_fast_timer_started++; \
TIMERD(DEBUG_LOG(info->line, "start_timer %i ", info->line)); \
@@ -2070,7 +1716,7 @@
else { \
TIMERD(DEBUG_LOG(info->line, "timer %i already running\n", info->line)); \
} \
- restore_flags(timer_flags); \
+ local_irq_restore(timer_flags); \
}
#define START_FLUSH_FAST_TIMER(info, string) START_FLUSH_FAST_TIMER_TIME(info, string, info->flush_time_usec)
@@ -2099,8 +1745,7 @@
{
unsigned long flags;
- save_flags(flags);
- cli();
+ local_irq_save(flags);
if (!info->first_recv_buffer)
info->first_recv_buffer = buffer;
@@ -2113,7 +1758,7 @@
if (info->recv_cnt > info->max_recv_cnt)
info->max_recv_cnt = info->recv_cnt;
- restore_flags(flags);
+ local_irq_restore(flags);
}
static int
@@ -2133,11 +1778,7 @@
info->icount.rx++;
} else {
struct tty_struct *tty = info->tty;
- *tty->flip.char_buf_ptr = data;
- *tty->flip.flag_buf_ptr = flag;
- tty->flip.flag_buf_ptr++;
- tty->flip.char_buf_ptr++;
- tty->flip.count++;
+ tty_insert_flip_char(tty, data, flag);
info->icount.rx++;
}
@@ -2322,7 +1963,6 @@
*/
return;
#endif
- info->tty->flip.count = 0;
if (info->uses_dma_in) {
/* reset the input dma channel to be sure it works */
@@ -2484,32 +2124,20 @@
{
struct tty_struct *tty;
struct etrax_recv_buffer *buffer;
- unsigned int length;
unsigned long flags;
- int max_flip_size;
- if (!info->first_recv_buffer)
- return;
+ local_irq_save(flags);
+ tty = info->tty;
- save_flags(flags);
- cli();
-
- if (!(tty = info->tty)) {
- restore_flags(flags);
+ if (!tty) {
+ local_irq_restore(flags);
return;
}
while ((buffer = info->first_recv_buffer) != NULL) {
unsigned int count = buffer->length;
- count = tty_buffer_request_room(tty, count);
- if (count == 0) /* Throttle ?? */
- break;
-
- if (count > 1)
- tty_insert_flip_strings(tty, buffer->buffer, count - 1);
- tty_insert_flip_char(tty, buffer->buffer[count-1], buffer->error);
-
+ tty_insert_flip_string(tty, buffer->buffer, count);
info->recv_cnt -= count;
if (count == buffer->length) {
@@ -2525,18 +2153,9 @@
if (!info->first_recv_buffer)
info->last_recv_buffer = NULL;
- restore_flags(flags);
+ local_irq_restore(flags);
- DFLIP(
- if (1) {
- DEBUG_LOG(info->line, "*** rxtot %i\n", info->icount.rx);
- DEBUG_LOG(info->line, "ldisc %lu\n", tty->ldisc.chars_in_buffer(tty));
- DEBUG_LOG(info->line, "room %lu\n", tty->ldisc.receive_room(tty));
- }
-
- );
-
- /* this includes a check for low-latency */
+ /* This includes a check for low-latency */
tty_flip_buffer_push(tty);
}
@@ -2679,21 +2298,7 @@
printk("!NO TTY!\n");
return info;
}
- if (tty->flip.count >= CRIS_BUF_SIZE - TTY_THRESHOLD_THROTTLE) {
- /* check TTY_THROTTLED first so it indicates our state */
- if (!test_and_set_bit(TTY_THROTTLED, &tty->flags)) {
- DFLOW(DEBUG_LOG(info->line, "rs_throttle flip.count: %i\n", tty->flip.count));
- rs_throttle(tty);
- }
- }
- if (tty->flip.count >= CRIS_BUF_SIZE) {
- DEBUG_LOG(info->line, "force FLIP! %i\n", tty->flip.count);
- tty->flip.work.func((void *) tty);
- if (tty->flip.count >= CRIS_BUF_SIZE) {
- DEBUG_LOG(info->line, "FLIP FULL! %i\n", tty->flip.count);
- return info; /* if TTY_DONT_FLIP is set */
- }
- }
+
/* Read data and status at the same time */
data_read = *((unsigned long *)&info->port[REG_DATA_STATUS32]);
more_data:
@@ -2746,27 +2351,26 @@
DEBUG_LOG(info->line, "EBRK %i\n", info->break_detected_cnt);
info->errorcode = ERRCODE_INSERT_BREAK;
} else {
+ unsigned char data = IO_EXTRACT(R_SERIAL0_READ,
+ data_in, data_read);
+ char flag = TTY_NORMAL;
if (info->errorcode == ERRCODE_INSERT_BREAK) {
- info->icount.brk++;
- *tty->flip.char_buf_ptr = 0;
- *tty->flip.flag_buf_ptr = TTY_BREAK;
- tty->flip.flag_buf_ptr++;
- tty->flip.char_buf_ptr++;
- tty->flip.count++;
+ struct tty_struct *tty = info->tty;
+ tty_insert_flip_char(tty, 0, flag);
info->icount.rx++;
}
- *tty->flip.char_buf_ptr = IO_EXTRACT(R_SERIAL0_READ, data_in, data_read);
if (data_read & IO_MASK(R_SERIAL0_READ, par_err)) {
info->icount.parity++;
- *tty->flip.flag_buf_ptr = TTY_PARITY;
+ flag = TTY_PARITY;
} else if (data_read & IO_MASK(R_SERIAL0_READ, overrun)) {
info->icount.overrun++;
- *tty->flip.flag_buf_ptr = TTY_OVERRUN;
+ flag = TTY_OVERRUN;
} else if (data_read & IO_MASK(R_SERIAL0_READ, framing_err)) {
info->icount.frame++;
- *tty->flip.flag_buf_ptr = TTY_FRAME;
+ flag = TTY_FRAME;
}
+ tty_insert_flip_char(tty, data, flag);
info->errorcode = 0;
}
info->break_detected_cnt = 0;
@@ -2782,16 +2386,14 @@
log_int(rdpc(), 0, 0);
}
);
- *tty->flip.char_buf_ptr = IO_EXTRACT(R_SERIAL0_READ, data_in, data_read);
- *tty->flip.flag_buf_ptr = 0;
+ tty_insert_flip_char(tty,
+ IO_EXTRACT(R_SERIAL0_READ, data_in, data_read),
+ TTY_NORMAL);
} else {
DEBUG_LOG(info->line, "ser_rx int but no data_avail %08lX\n", data_read);
}
- tty->flip.flag_buf_ptr++;
- tty->flip.char_buf_ptr++;
- tty->flip.count++;
info->icount.rx++;
data_read = *((unsigned long *)&info->port[REG_DATA_STATUS32]);
if (data_read & IO_MASK(R_SERIAL0_READ, data_avail)) {
@@ -2929,7 +2531,7 @@
if (info->x_char) {
unsigned char rstat;
DFLOW(DEBUG_LOG(info->line, "tx_int: xchar 0x%02X\n", info->x_char));
- save_flags(flags); cli();
+ local_irq_save(flags);
rstat = info->port[REG_STATUS];
DFLOW(DEBUG_LOG(info->line, "stat %x\n", rstat));
@@ -2938,7 +2540,7 @@
info->x_char = 0;
/* We must enable since it is disabled in ser_interrupt */
e100_enable_serial_tx_ready_irq(info);
- restore_flags(flags);
+ local_irq_restore(flags);
return;
}
if (info->uses_dma_out) {
@@ -2946,7 +2548,7 @@
int i;
/* We only use normal tx interrupt when sending x_char */
DFLOW(DEBUG_LOG(info->line, "tx_int: xchar sent\n", 0));
- save_flags(flags); cli();
+ local_irq_save(flags);
rstat = info->port[REG_STATUS];
DFLOW(DEBUG_LOG(info->line, "stat %x\n", rstat));
e100_disable_serial_tx_ready_irq(info);
@@ -2959,7 +2561,7 @@
nop();
*info->ocmdadr = IO_STATE(R_DMA_CH6_CMD, cmd, continue);
- restore_flags(flags);
+ local_irq_restore(flags);
return;
}
/* Normal char-by-char interrupt */
@@ -2973,7 +2575,7 @@
}
DINTR2(DEBUG_LOG(info->line, "tx_int %c\n", info->xmit.buf[info->xmit.tail]));
/* Send a byte, rs485 timing is critical so turn of ints */
- save_flags(flags); cli();
+ local_irq_save(flags);
info->port[REG_TR_DATA] = info->xmit.buf[info->xmit.tail];
info->xmit.tail = (info->xmit.tail + 1) & (SERIAL_XMIT_SIZE-1);
info->icount.tx++;
@@ -2997,7 +2599,7 @@
/* We must enable since it is disabled in ser_interrupt */
e100_enable_serial_tx_ready_irq(info);
}
- restore_flags(flags);
+ local_irq_restore(flags);
if (CIRC_CNT(info->xmit.head,
info->xmit.tail,
@@ -3022,7 +2624,7 @@
int handled = 0;
static volatile unsigned long reentered_ready_mask = 0;
- save_flags(flags); cli();
+ local_irq_save(flags);
irq_mask1_rd = *R_IRQ_MASK1_RD;
/* First handle all rx interrupts with ints disabled */
info = rs_table;
@@ -3067,7 +2669,7 @@
/* Unblock the serial interrupt */
*R_VECT_MASK_SET = IO_STATE(R_VECT_MASK_SET, serial, set);
- sti();
+ local_irq_enable();
ready_mask = (1 << (8+1+2*0)); /* ser0 tr_ready */
info = rs_table;
for (i = 0; i < NR_PORTS; i++) {
@@ -3080,11 +2682,11 @@
ready_mask <<= 2;
}
/* handle_ser_tx_interrupt enables tr_ready interrupts */
- cli();
+ local_irq_disable();
/* Handle reentered TX interrupt */
irq_mask1_rd = reentered_ready_mask;
}
- cli();
+ local_irq_disable();
tx_started = 0;
} else {
unsigned long ready_mask;
@@ -3100,7 +2702,7 @@
}
}
- restore_flags(flags);
+ local_irq_restore(flags);
return IRQ_RETVAL(handled);
} /* ser_interrupt */
#endif
@@ -3121,11 +2723,13 @@
* them using rs_sched_event(), and they get done here.
*/
static void
-do_softint(void *private_)
+do_softint(struct work_struct *work)
{
- struct e100_serial *info = (struct e100_serial *) private_;
+ struct e100_serial *info;
struct tty_struct *tty;
+ info = container_of(work, struct e100_serial, work);
+
tty = info->tty;
if (!tty)
return;
@@ -3145,13 +2749,12 @@
if (!xmit_page)
return -ENOMEM;
- save_flags(flags);
- cli();
+ local_irq_save(flags);
/* if it was already initialized, skip this */
if (info->flags & ASYNC_INITIALIZED) {
- restore_flags(flags);
+ local_irq_restore(flags);
free_page(xmit_page);
return 0;
}
@@ -3277,7 +2880,7 @@
info->flags |= ASYNC_INITIALIZED;
- restore_flags(flags);
+ local_irq_restore(flags);
return 0;
}
@@ -3328,8 +2931,7 @@
info->irq);
#endif
- save_flags(flags);
- cli(); /* Disable interrupts */
+ local_irq_save(flags);
if (info->xmit.buf) {
free_page((unsigned long)info->xmit.buf);
@@ -3353,7 +2955,7 @@
set_bit(TTY_IO_ERROR, &info->tty->flags);
info->flags &= ~ASYNC_INITIALIZED;
- restore_flags(flags);
+ local_irq_restore(flags);
}
@@ -3411,7 +3013,6 @@
DBAUD(printk("using external baudrate: %lu\n", CONFIG_ETRAX_EXTERN_PB6CLK_FREQ/8));
info->baud = CONFIG_ETRAX_EXTERN_PB6CLK_FREQ/8;
}
- }
#endif
else
{
@@ -3445,8 +3046,7 @@
#ifndef CONFIG_SVINTO_SIM
/* start with default settings and then fill in changes */
- save_flags(flags);
- cli();
+ local_irq_save(flags);
/* 8 bit, no/even parity */
info->rx_ctrl &= ~(IO_MASK(R_SERIAL0_REC_CTRL, rec_bitnr) |
IO_MASK(R_SERIAL0_REC_CTRL, rec_par_en) |
@@ -3510,7 +3110,7 @@
}
*((unsigned long *)&info->port[REG_XOFF]) = xoff;
- restore_flags(flags);
+ local_irq_restore(flags);
#endif /* !CONFIG_SVINTO_SIM */
update_char_time(info);
@@ -3538,13 +3138,12 @@
/* this protection might not exactly be necessary here */
- save_flags(flags);
- cli();
+ local_irq_save(flags);
start_transmit(info);
- restore_flags(flags);
+ local_irq_restore(flags);
}
-static int rs_raw_write(struct tty_struct * tty, int from_user,
+static int rs_raw_write(struct tty_struct *tty,
const unsigned char *buf, int count)
{
int c, ret = 0;
@@ -3567,53 +3166,19 @@
SIMCOUT(buf, count);
return count;
#endif
- save_flags(flags);
+ local_save_flags(flags);
DFLOW(DEBUG_LOG(info->line, "write count %i ", count));
DFLOW(DEBUG_LOG(info->line, "ldisc %i\n", tty->ldisc.chars_in_buffer(tty)));
- /* the cli/restore_flags pairs below are needed because the
- * DMA interrupt handler moves the info->xmit values. the memcpy
- * needs to be in the critical region unfortunately, because we
- * need to read xmit values, memcpy, write xmit values in one
- * atomic operation... this could perhaps be avoided by more clever
- * design.
+ /* The local_irq_disable/restore_flags pairs below are needed
+ * because the DMA interrupt handler moves the info->xmit values.
+ * the memcpy needs to be in the critical region unfortunately,
+ * because we need to read xmit values, memcpy, write xmit values
+ * in one atomic operation... this could perhaps be avoided by
+ * more clever design.
*/
- if (from_user) {
- mutex_lock(&tmp_buf_mutex);
- while (1) {
- int c1;
- c = CIRC_SPACE_TO_END(info->xmit.head,
- info->xmit.tail,
- SERIAL_XMIT_SIZE);
- if (count < c)
- c = count;
- if (c <= 0)
- break;
-
- c -= copy_from_user(tmp_buf, buf, c);
- if (!c) {
- if (!ret)
- ret = -EFAULT;
- break;
- }
- cli();
- c1 = CIRC_SPACE_TO_END(info->xmit.head,
- info->xmit.tail,
- SERIAL_XMIT_SIZE);
- if (c1 < c)
- c = c1;
- memcpy(info->xmit.buf + info->xmit.head, tmp_buf, c);
- info->xmit.head = ((info->xmit.head + c) &
- (SERIAL_XMIT_SIZE-1));
- restore_flags(flags);
- buf += c;
- count -= c;
- ret += c;
- }
- mutex_unlock(&tmp_buf_mutex);
- } else {
- cli();
+ local_irq_disable();
while (count) {
c = CIRC_SPACE_TO_END(info->xmit.head,
info->xmit.tail,
@@ -3631,8 +3196,7 @@
count -= c;
ret += c;
}
- restore_flags(flags);
- }
+ local_irq_restore(flags);
/* enable transmitter if not running, unless the tty is stopped
* this does not need IRQ protection since if tr_running == 0
@@ -3651,7 +3215,7 @@
} /* raw_raw_write() */
static int
-rs_write(struct tty_struct * tty, int from_user,
+rs_write(struct tty_struct *tty,
const unsigned char *buf, int count)
{
#if defined(CONFIG_ETRAX_RS485)
@@ -3678,7 +3242,7 @@
}
#endif /* CONFIG_ETRAX_RS485 */
- count = rs_raw_write(tty, from_user, buf, count);
+ count = rs_raw_write(tty, buf, count);
#if defined(CONFIG_ETRAX_RS485)
if (info->rs485.enabled)
@@ -3746,10 +3310,9 @@
struct e100_serial *info = (struct e100_serial *)tty->driver_data;
unsigned long flags;
- save_flags(flags);
- cli();
+ local_irq_save(flags);
info->xmit.head = info->xmit.tail = 0;
- restore_flags(flags);
+ local_irq_restore(flags);
tty_wakeup(tty);
}
@@ -3767,7 +3330,7 @@
{
struct e100_serial *info = (struct e100_serial *)tty->driver_data;
unsigned long flags;
- save_flags(flags); cli();
+ local_irq_save(flags);
if (info->uses_dma_out) {
/* Put the DMA on hold and disable the channel */
*info->ocmdadr = IO_STATE(R_DMA_CH6_CMD, cmd, hold);
@@ -3784,7 +3347,7 @@
DFLOW(DEBUG_LOG(info->line, "rs_send_xchar 0x%02X\n", ch));
info->x_char = ch;
e100_enable_serial_tx_ready_irq(info);
- restore_flags(flags);
+ local_irq_restore(flags);
}
/*
@@ -3996,21 +3559,61 @@
}
#endif
-static int
-get_modem_info(struct e100_serial * info, unsigned int *value)
+static void
+rs_break(struct tty_struct *tty, int break_state)
{
- unsigned int result;
- /* Polarity isn't verified */
-#if 0 /*def SERIAL_DEBUG_IO */
+ struct e100_serial *info = (struct e100_serial *)tty->driver_data;
+ unsigned long flags;
- printk("get_modem_info: RTS: %i DTR: %i CD: %i RI: %i DSR: %i CTS: %i\n",
- E100_RTS_GET(info),
- E100_DTR_GET(info),
- E100_CD_GET(info),
- E100_RI_GET(info),
- E100_DSR_GET(info),
- E100_CTS_GET(info));
-#endif
+ if (!info->port)
+ return;
+
+ local_irq_save(flags);
+ if (break_state == -1) {
+ /* Go to manual mode and set the txd pin to 0 */
+ /* Clear bit 7 (txd) and 6 (tr_enable) */
+ info->tx_ctrl &= 0x3F;
+ } else {
+ /* Set bit 7 (txd) and 6 (tr_enable) */
+ info->tx_ctrl |= (0x80 | 0x40);
+ }
+ info->port[REG_TR_CTRL] = info->tx_ctrl;
+ local_irq_restore(flags);
+}
+
+static int
+rs_tiocmset(struct tty_struct *tty, struct file *file,
+ unsigned int set, unsigned int clear)
+{
+ struct e100_serial *info = (struct e100_serial *)tty->driver_data;
+
+ if (clear & TIOCM_RTS)
+ e100_rts(info, 0);
+ if (clear & TIOCM_DTR)
+ e100_dtr(info, 0);
+ /* Handle FEMALE behaviour */
+ if (clear & TIOCM_RI)
+ e100_ri_out(info, 0);
+ if (clear & TIOCM_CD)
+ e100_cd_out(info, 0);
+
+ if (set & TIOCM_RTS)
+ e100_rts(info, 1);
+ if (set & TIOCM_DTR)
+ e100_dtr(info, 1);
+ /* Handle FEMALE behaviour */
+ if (set & TIOCM_RI)
+ e100_ri_out(info, 1);
+ if (set & TIOCM_CD)
+ e100_cd_out(info, 1);
+ return 0;
+}
+
+static int
+rs_tiocmget(struct tty_struct *tty, struct file *file)
+{
+ struct e100_serial *info = (struct e100_serial *)tty->driver_data;
+ unsigned int result;
result =
(!E100_RTS_GET(info) ? TIOCM_RTS : 0)
@@ -4021,96 +3624,21 @@
| (!E100_CTS_GET(info) ? TIOCM_CTS : 0);
#ifdef SERIAL_DEBUG_IO
- printk("e100ser: modem state: %i 0x%08X\n", result, result);
+ printk(KERN_DEBUG "ser%i: modem state: %i 0x%08X\n",
+ info->line, result, result);
{
char s[100];
get_control_state_str(result, s);
- printk("state: %s\n", s);
+ printk(KERN_DEBUG "state: %s\n", s);
}
#endif
- if (copy_to_user(value, &result, sizeof(int)))
- return -EFAULT;
- return 0;
+ return result;
+
}
static int
-set_modem_info(struct e100_serial * info, unsigned int cmd,
- unsigned int *value)
-{
- unsigned int arg;
-
- if (copy_from_user(&arg, value, sizeof(int)))
- return -EFAULT;
-
- switch (cmd) {
- case TIOCMBIS:
- if (arg & TIOCM_RTS) {
- e100_rts(info, 1);
- }
- if (arg & TIOCM_DTR) {
- e100_dtr(info, 1);
- }
- /* Handle FEMALE behaviour */
- if (arg & TIOCM_RI) {
- e100_ri_out(info, 1);
- }
- if (arg & TIOCM_CD) {
- e100_cd_out(info, 1);
- }
- break;
- case TIOCMBIC:
- if (arg & TIOCM_RTS) {
- e100_rts(info, 0);
- }
- if (arg & TIOCM_DTR) {
- e100_dtr(info, 0);
- }
- /* Handle FEMALE behaviour */
- if (arg & TIOCM_RI) {
- e100_ri_out(info, 0);
- }
- if (arg & TIOCM_CD) {
- e100_cd_out(info, 0);
- }
- break;
- case TIOCMSET:
- e100_rts(info, arg & TIOCM_RTS);
- e100_dtr(info, arg & TIOCM_DTR);
- /* Handle FEMALE behaviour */
- e100_ri_out(info, arg & TIOCM_RI);
- e100_cd_out(info, arg & TIOCM_CD);
- break;
- default:
- return -EINVAL;
- }
- return 0;
-}
-
-
-static void
-rs_break(struct tty_struct *tty, int break_state)
-{
- struct e100_serial * info = (struct e100_serial *)tty->driver_data;
- unsigned long flags;
-
- if (!info->port)
- return;
-
- save_flags(flags);
- cli();
- if (break_state == -1) {
- /* Go to manual mode and set the txd pin to 0 */
- info->tx_ctrl &= 0x3F; /* Clear bit 7 (txd) and 6 (tr_enable) */
- } else {
- info->tx_ctrl |= (0x80 | 0x40); /* Set bit 7 (txd) and 6 (tr_enable) */
- }
- info->port[REG_TR_CTRL] = info->tx_ctrl;
- restore_flags(flags);
-}
-
-static int
rs_ioctl(struct tty_struct *tty, struct file * file,
unsigned int cmd, unsigned long arg)
{
@@ -4124,49 +3652,45 @@
}
switch (cmd) {
- case TIOCMGET:
- return get_modem_info(info, (unsigned int *) arg);
- case TIOCMBIS:
- case TIOCMBIC:
- case TIOCMSET:
- return set_modem_info(info, cmd, (unsigned int *) arg);
- case TIOCGSERIAL:
- return get_serial_info(info,
- (struct serial_struct *) arg);
- case TIOCSSERIAL:
- return set_serial_info(info,
- (struct serial_struct *) arg);
- case TIOCSERGETLSR: /* Get line status register */
- return get_lsr_info(info, (unsigned int *) arg);
+ case TIOCGSERIAL:
+ return get_serial_info(info,
+ (struct serial_struct *) arg);
+ case TIOCSSERIAL:
+ return set_serial_info(info,
+ (struct serial_struct *) arg);
+ case TIOCSERGETLSR: /* Get line status register */
+ return get_lsr_info(info, (unsigned int *) arg);
- case TIOCSERGSTRUCT:
- if (copy_to_user((struct e100_serial *) arg,
- info, sizeof(struct e100_serial)))
- return -EFAULT;
- return 0;
+ case TIOCSERGSTRUCT:
+ if (copy_to_user((struct e100_serial *) arg,
+ info, sizeof(struct e100_serial)))
+ return -EFAULT;
+ return 0;
#if defined(CONFIG_ETRAX_RS485)
- case TIOCSERSETRS485:
- {
- struct rs485_control rs485ctrl;
- if (copy_from_user(&rs485ctrl, (struct rs485_control*)arg, sizeof(rs485ctrl)))
- return -EFAULT;
+ case TIOCSERSETRS485:
+ {
+ struct rs485_control rs485ctrl;
+ if (copy_from_user(&rs485ctrl, (struct rs485_control *)arg,
+ sizeof(rs485ctrl)))
+ return -EFAULT;
- return e100_enable_rs485(tty, &rs485ctrl);
- }
+ return e100_enable_rs485(tty, &rs485ctrl);
+ }
- case TIOCSERWRRS485:
- {
- struct rs485_write rs485wr;
- if (copy_from_user(&rs485wr, (struct rs485_write*)arg, sizeof(rs485wr)))
- return -EFAULT;
+ case TIOCSERWRRS485:
+ {
+ struct rs485_write rs485wr;
+ if (copy_from_user(&rs485wr, (struct rs485_write *)arg,
+ sizeof(rs485wr)))
+ return -EFAULT;
- return e100_write_rs485(tty, 1, rs485wr.outc, rs485wr.outc_size);
- }
+ return e100_write_rs485(tty, rs485wr.outc, rs485wr.outc_size);
+ }
#endif
- default:
- return -ENOIOCTLCMD;
+ default:
+ return -ENOIOCTLCMD;
}
return 0;
}
@@ -4191,46 +3715,6 @@
}
-/* In debugport.c - register a console write function that uses the normal
- * serial driver
- */
-typedef int (*debugport_write_function)(int i, const char *buf, unsigned int len);
-
-extern debugport_write_function debug_write_function;
-
-static int rs_debug_write_function(int i, const char *buf, unsigned int len)
-{
- int cnt;
- int written = 0;
- struct tty_struct *tty;
- static int recurse_cnt = 0;
-
- tty = rs_table[i].tty;
- if (tty) {
- unsigned long flags;
- if (recurse_cnt > 5) /* We skip this debug output */
- return 1;
-
- local_irq_save(flags);
- recurse_cnt++;
- local_irq_restore(flags);
- do {
- cnt = rs_write(tty, 0, buf + written, len);
- if (cnt >= 0) {
- written += cnt;
- buf += cnt;
- len -= cnt;
- } else
- len = cnt;
- } while(len > 0);
- local_irq_save(flags);
- recurse_cnt--;
- local_irq_restore(flags);
- return 1;
- }
- return 0;
-}
-
/*
* ------------------------------------------------------------
* rs_close()
@@ -4252,11 +3736,10 @@
/* interrupts are disabled for this entire function */
- save_flags(flags);
- cli();
+ local_irq_save(flags);
if (tty_hung_up_p(filp)) {
- restore_flags(flags);
+ local_irq_restore(flags);
return;
}
@@ -4283,7 +3766,7 @@
info->count = 0;
}
if (info->count) {
- restore_flags(flags);
+ local_irq_restore(flags);
return;
}
info->flags |= ASYNC_CLOSING;
@@ -4337,7 +3820,7 @@
}
info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
wake_up_interruptible(&info->close_wait);
- restore_flags(flags);
+ local_irq_restore(flags);
/* port closed */
@@ -4359,6 +3842,28 @@
#endif
}
#endif
+
+ /*
+ * Release any allocated DMA irq's.
+ */
+ if (info->dma_in_enabled) {
+ free_irq(info->dma_in_irq_nbr, info);
+ cris_free_dma(info->dma_in_nbr, info->dma_in_irq_description);
+ info->uses_dma_in = 0;
+#ifdef SERIAL_DEBUG_OPEN
+ printk(KERN_DEBUG "DMA irq '%s' freed\n",
+ info->dma_in_irq_description);
+#endif
+ }
+ if (info->dma_out_enabled) {
+ free_irq(info->dma_out_irq_nbr, info);
+ cris_free_dma(info->dma_out_nbr, info->dma_out_irq_description);
+ info->uses_dma_out = 0;
+#ifdef SERIAL_DEBUG_OPEN
+ printk(KERN_DEBUG "DMA irq '%s' freed\n",
+ info->dma_out_irq_description);
+#endif
+ }
}
/*
@@ -4433,8 +3938,8 @@
*/
if (tty_hung_up_p(filp) ||
(info->flags & ASYNC_CLOSING)) {
- if (info->flags & ASYNC_CLOSING)
- interruptible_sleep_on(&info->close_wait);
+ wait_event_interruptible(info->close_wait,
+ !(info->flags & ASYNC_CLOSING));
#ifdef SERIAL_DO_RESTART
if (info->flags & ASYNC_HUP_NOTIFY)
return -EAGAIN;
@@ -4472,21 +3977,19 @@
printk("block_til_ready before block: ttyS%d, count = %d\n",
info->line, info->count);
#endif
- save_flags(flags);
- cli();
+ local_irq_save(flags);
if (!tty_hung_up_p(filp)) {
extra_count++;
info->count--;
}
- restore_flags(flags);
+ local_irq_restore(flags);
info->blocked_open++;
while (1) {
- save_flags(flags);
- cli();
+ local_irq_save(flags);
/* assert RTS and DTR */
e100_rts(info, 1);
e100_dtr(info, 1);
- restore_flags(flags);
+ local_irq_restore(flags);
set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) ||
!(info->flags & ASYNC_INITIALIZED)) {
@@ -4528,6 +4031,19 @@
return 0;
}
+static void
+deinit_port(struct e100_serial *info)
+{
+ if (info->dma_out_enabled) {
+ cris_free_dma(info->dma_out_nbr, info->dma_out_irq_description);
+ free_irq(info->dma_out_irq_nbr, info);
+ }
+ if (info->dma_in_enabled) {
+ cris_free_dma(info->dma_in_nbr, info->dma_in_irq_description);
+ free_irq(info->dma_in_irq_nbr, info);
+ }
+}
+
/*
* This routine is called whenever a serial port is opened.
* It performs the serial-specific initialization for the tty structure.
@@ -4538,9 +4054,9 @@
struct e100_serial *info;
int retval, line;
unsigned long page;
+ int allocated_resources = 0;
/* find which port we want to open */
-
line = tty->index;
if (line < 0 || line >= NR_PORTS)
@@ -4580,8 +4096,8 @@
*/
if (tty_hung_up_p(filp) ||
(info->flags & ASYNC_CLOSING)) {
- if (info->flags & ASYNC_CLOSING)
- interruptible_sleep_on(&info->close_wait);
+ wait_event_interruptible(info->close_wait,
+ !(info->flags & ASYNC_CLOSING));
#ifdef SERIAL_DO_RESTART
return ((info->flags & ASYNC_HUP_NOTIFY) ?
-EAGAIN : -ERESTARTSYS);
@@ -4591,12 +4107,85 @@
}
/*
+ * If DMA is enabled try to allocate the irq's.
+ */
+ if (info->count == 1) {
+ allocated_resources = 1;
+ if (info->dma_in_enabled) {
+ if (request_irq(info->dma_in_irq_nbr,
+ rec_interrupt,
+ info->dma_in_irq_flags,
+ info->dma_in_irq_description,
+ info)) {
+ printk(KERN_WARNING "DMA irq '%s' busy; "
+ "falling back to non-DMA mode\n",
+ info->dma_in_irq_description);
+ /* Make sure we never try to use DMA in */
+ /* for the port again. */
+ info->dma_in_enabled = 0;
+ } else if (cris_request_dma(info->dma_in_nbr,
+ info->dma_in_irq_description,
+ DMA_VERBOSE_ON_ERROR,
+ info->dma_owner)) {
+ free_irq(info->dma_in_irq_nbr, info);
+ printk(KERN_WARNING "DMA '%s' busy; "
+ "falling back to non-DMA mode\n",
+ info->dma_in_irq_description);
+ /* Make sure we never try to use DMA in */
+ /* for the port again. */
+ info->dma_in_enabled = 0;
+ }
+#ifdef SERIAL_DEBUG_OPEN
+ else
+ printk(KERN_DEBUG "DMA irq '%s' allocated\n",
+ info->dma_in_irq_description);
+#endif
+ }
+ if (info->dma_out_enabled) {
+ if (request_irq(info->dma_out_irq_nbr,
+ tr_interrupt,
+ info->dma_out_irq_flags,
+ info->dma_out_irq_description,
+ info)) {
+ printk(KERN_WARNING "DMA irq '%s' busy; "
+ "falling back to non-DMA mode\n",
+ info->dma_out_irq_description);
+ /* Make sure we never try to use DMA out */
+ /* for the port again. */
+ info->dma_out_enabled = 0;
+ } else if (cris_request_dma(info->dma_out_nbr,
+ info->dma_out_irq_description,
+ DMA_VERBOSE_ON_ERROR,
+ info->dma_owner)) {
+ free_irq(info->dma_out_irq_nbr, info);
+ printk(KERN_WARNING "DMA '%s' busy; "
+ "falling back to non-DMA mode\n",
+ info->dma_out_irq_description);
+ /* Make sure we never try to use DMA out */
+ /* for the port again. */
+ info->dma_out_enabled = 0;
+ }
+#ifdef SERIAL_DEBUG_OPEN
+ else
+ printk(KERN_DEBUG "DMA irq '%s' allocated\n",
+ info->dma_out_irq_description);
+#endif
+ }
+ }
+
+ /*
* Start up the serial port
*/
retval = startup(info);
- if (retval)
+ if (retval) {
+ if (allocated_resources)
+ deinit_port(info);
+
+ /* FIXME Decrease count info->count here too? */
return retval;
+ }
+
retval = block_til_ready(tty, filp, info);
if (retval) {
@@ -4604,6 +4193,9 @@
printk("rs_open returning after block_til_ready with %d\n",
retval);
#endif
+ if (allocated_resources)
+ deinit_port(info);
+
return retval;
}
@@ -4793,6 +4385,8 @@
.send_xchar = rs_send_xchar,
.wait_until_sent = rs_wait_until_sent,
.read_proc = rs_read_proc,
+ .tiocmget = rs_tiocmget,
+ .tiocmset = rs_tiocmset
};
static int __init
@@ -4810,9 +4404,27 @@
/* Setup the timed flush handler system */
#if !defined(CONFIG_ETRAX_SERIAL_FAST_TIMER)
- init_timer(&flush_timer);
- flush_timer.function = timed_flush_handler;
- mod_timer(&flush_timer, jiffies + CONFIG_ETRAX_SERIAL_RX_TIMEOUT_TICKS);
+ setup_timer(&flush_timer, timed_flush_handler, 0);
+ mod_timer(&flush_timer, jiffies + 5);
+#endif
+
+#if defined(CONFIG_ETRAX_RS485)
+#if defined(CONFIG_ETRAX_RS485_ON_PA)
+ if (cris_io_interface_allocate_pins(if_ser0, 'a', rs485_pa_bit,
+ rs485_pa_bit)) {
+ printk(KERN_CRIT "ETRAX100LX serial: Could not allocate "
+ "RS485 pin\n");
+ return -EBUSY;
+ }
+#endif
+#if defined(CONFIG_ETRAX_RS485_ON_PORT_G)
+ if (cris_io_interface_allocate_pins(if_ser0, 'g', rs485_pa_bit,
+ rs485_port_g_bit)) {
+ printk(KERN_CRIT "ETRAX100LX serial: Could not allocate "
+ "RS485 pin\n");
+ return -EBUSY;
+ }
+#endif
#endif
/* Initialize the tty_driver structure */
@@ -4839,6 +4451,16 @@
/* do some initializing for the separate ports */
for (i = 0, info = rs_table; i < NR_PORTS; i++,info++) {
+ if (info->enabled) {
+ if (cris_request_io_interface(info->io_if,
+ info->io_if_description)) {
+ printk(KERN_CRIT "ETRAX100LX async serial: "
+ "Could not allocate IO pins for "
+ "%s, port %d\n",
+ info->io_if_description, i);
+ info->enabled = 0;
+ }
+ }
info->uses_dma_in = 0;
info->uses_dma_out = 0;
info->line = i;
@@ -4872,7 +4494,7 @@
info->rs485.delay_rts_before_send = 0;
info->rs485.enabled = 0;
#endif
- INIT_WORK(&info->work, do_softint, info);
+ INIT_WORK(&info->work, do_softint);
if (info->enabled) {
printk(KERN_INFO "%s%d at 0x%x is a builtin UART with DMA\n",
@@ -4890,64 +4512,17 @@
#endif
#ifndef CONFIG_SVINTO_SIM
+#ifndef CONFIG_ETRAX_KGDB
/* Not needed in simulator. May only complicate stuff. */
/* hook the irq's for DMA channel 6 and 7, serial output and input, and some more... */
- if (request_irq(SERIAL_IRQ_NBR, ser_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial ", NULL))
- panic("irq8");
+ if (request_irq(SERIAL_IRQ_NBR, ser_interrupt,
+ IRQF_SHARED | IRQF_DISABLED, "serial ", driver))
+ panic("%s: Failed to request irq8", __FUNCTION__);
-#ifdef CONFIG_ETRAX_SERIAL_PORT0
-#ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA6_OUT
- if (request_irq(SER0_DMA_TX_IRQ_NBR, tr_interrupt, IRQF_DISABLED, "serial 0 dma tr", NULL))
- panic("irq22");
-#endif
-#ifdef CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN
- if (request_irq(SER0_DMA_RX_IRQ_NBR, rec_interrupt, IRQF_DISABLED, "serial 0 dma rec", NULL))
- panic("irq23");
-#endif
-#endif
-
-#ifdef CONFIG_ETRAX_SERIAL_PORT1
-#ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA8_OUT
- if (request_irq(SER1_DMA_TX_IRQ_NBR, tr_interrupt, IRQF_DISABLED, "serial 1 dma tr", NULL))
- panic("irq24");
-#endif
-#ifdef CONFIG_ETRAX_SERIAL_PORT1_DMA9_IN
- if (request_irq(SER1_DMA_RX_IRQ_NBR, rec_interrupt, IRQF_DISABLED, "serial 1 dma rec", NULL))
- panic("irq25");
-#endif
-#endif
-#ifdef CONFIG_ETRAX_SERIAL_PORT2
- /* DMA Shared with par0 (and SCSI0 and ATA) */
-#ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA2_OUT
- if (request_irq(SER2_DMA_TX_IRQ_NBR, tr_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial 2 dma tr", NULL))
- panic("irq18");
-#endif
-#ifdef CONFIG_ETRAX_SERIAL_PORT2_DMA3_IN
- if (request_irq(SER2_DMA_RX_IRQ_NBR, rec_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial 2 dma rec", NULL))
- panic("irq19");
-#endif
-#endif
-#ifdef CONFIG_ETRAX_SERIAL_PORT3
- /* DMA Shared with par1 (and SCSI1 and Extern DMA 0) */
-#ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA4_OUT
- if (request_irq(SER3_DMA_TX_IRQ_NBR, tr_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial 3 dma tr", NULL))
- panic("irq20");
-#endif
-#ifdef CONFIG_ETRAX_SERIAL_PORT3_DMA5_IN
- if (request_irq(SER3_DMA_RX_IRQ_NBR, rec_interrupt, IRQF_SHARED | IRQF_DISABLED, "serial 3 dma rec", NULL))
- panic("irq21");
-#endif
-#endif
-
-#ifdef CONFIG_ETRAX_SERIAL_FLUSH_DMA_FAST
- if (request_irq(TIMER1_IRQ_NBR, timeout_interrupt, IRQF_SHARED | IRQF_DISABLED,
- "fast serial dma timeout", NULL)) {
- printk(KERN_CRIT "err: timer1 irq\n");
- }
#endif
#endif /* CONFIG_SVINTO_SIM */
- debug_write_function = rs_debug_write_function;
+
return 0;
}
diff --git a/drivers/serial/crisv10.h b/drivers/serial/crisv10.h
new file mode 100644
index 0000000..ccd0f32
--- /dev/null
+++ b/drivers/serial/crisv10.h
@@ -0,0 +1,146 @@
+/*
+ * serial.h: Arch-dep definitions for the Etrax100 serial driver.
+ *
+ * Copyright (C) 1998-2007 Axis Communications AB
+ */
+
+#ifndef _ETRAX_SERIAL_H
+#define _ETRAX_SERIAL_H
+
+#include <linux/circ_buf.h>
+#include <asm/termios.h>
+#include <asm/dma.h>
+#include <asm/arch/io_interface_mux.h>
+
+/* Software state per channel */
+
+#ifdef __KERNEL__
+/*
+ * This is our internal structure for each serial port's state.
+ *
+ * Many fields are paralleled by the structure used by the serial_struct
+ * structure.
+ *
+ * For definitions of the flags field, see tty.h
+ */
+
+#define SERIAL_RECV_DESCRIPTORS 8
+
+struct etrax_recv_buffer {
+ struct etrax_recv_buffer *next;
+ unsigned short length;
+ unsigned char error;
+ unsigned char pad;
+
+ unsigned char buffer[0];
+};
+
+struct e100_serial {
+ int baud;
+ volatile u8 *port; /* R_SERIALx_CTRL */
+ u32 irq; /* bitnr in R_IRQ_MASK2 for dmaX_descr */
+
+ /* Output registers */
+ volatile u8 *oclrintradr; /* adr to R_DMA_CHx_CLR_INTR */
+ volatile u32 *ofirstadr; /* adr to R_DMA_CHx_FIRST */
+ volatile u8 *ocmdadr; /* adr to R_DMA_CHx_CMD */
+ const volatile u8 *ostatusadr; /* adr to R_DMA_CHx_STATUS */
+
+ /* Input registers */
+ volatile u8 *iclrintradr; /* adr to R_DMA_CHx_CLR_INTR */
+ volatile u32 *ifirstadr; /* adr to R_DMA_CHx_FIRST */
+ volatile u8 *icmdadr; /* adr to R_DMA_CHx_CMD */
+ volatile u32 *idescradr; /* adr to R_DMA_CHx_DESCR */
+
+ int flags; /* defined in tty.h */
+
+ u8 rx_ctrl; /* shadow for R_SERIALx_REC_CTRL */
+ u8 tx_ctrl; /* shadow for R_SERIALx_TR_CTRL */
+ u8 iseteop; /* bit number for R_SET_EOP for the input dma */
+ int enabled; /* Set to 1 if the port is enabled in HW config */
+
+ u8 dma_out_enabled; /* Set to 1 if DMA should be used */
+ u8 dma_in_enabled; /* Set to 1 if DMA should be used */
+
+ /* end of fields defined in rs_table[] in .c-file */
+ int dma_owner;
+ unsigned int dma_in_nbr;
+ unsigned int dma_out_nbr;
+ unsigned int dma_in_irq_nbr;
+ unsigned int dma_out_irq_nbr;
+ unsigned long dma_in_irq_flags;
+ unsigned long dma_out_irq_flags;
+ char *dma_in_irq_description;
+ char *dma_out_irq_description;
+
+ enum cris_io_interface io_if;
+ char *io_if_description;
+
+ u8 uses_dma_in; /* Set to 1 if DMA is used */
+ u8 uses_dma_out; /* Set to 1 if DMA is used */
+ u8 forced_eop; /* a fifo eop has been forced */
+ int baud_base; /* For special baudrates */
+ int custom_divisor; /* For special baudrates */
+ struct etrax_dma_descr tr_descr;
+ struct etrax_dma_descr rec_descr[SERIAL_RECV_DESCRIPTORS];
+ int cur_rec_descr;
+
+ volatile int tr_running; /* 1 if output is running */
+
+ struct tty_struct *tty;
+ int read_status_mask;
+ int ignore_status_mask;
+ int x_char; /* xon/xoff character */
+ int close_delay;
+ unsigned short closing_wait;
+ unsigned short closing_wait2;
+ unsigned long event;
+ unsigned long last_active;
+ int line;
+ int type; /* PORT_ETRAX */
+ int count; /* # of fd on device */
+ int blocked_open; /* # of blocked opens */
+ struct circ_buf xmit;
+ struct etrax_recv_buffer *first_recv_buffer;
+ struct etrax_recv_buffer *last_recv_buffer;
+ unsigned int recv_cnt;
+ unsigned int max_recv_cnt;
+
+ struct work_struct work;
+ struct async_icount icount; /* error-statistics etc.*/
+ struct ktermios normal_termios;
+ struct ktermios callout_termios;
+ wait_queue_head_t open_wait;
+ wait_queue_head_t close_wait;
+
+ unsigned long char_time_usec; /* The time for 1 char, in usecs */
+ unsigned long flush_time_usec; /* How often we should flush */
+ unsigned long last_tx_active_usec; /* Last tx usec in the jiffies */
+ unsigned long last_tx_active; /* Last tx time in jiffies */
+ unsigned long last_rx_active_usec; /* Last rx usec in the jiffies */
+ unsigned long last_rx_active; /* Last rx time in jiffies */
+
+ int break_detected_cnt;
+ int errorcode;
+
+#ifdef CONFIG_ETRAX_RS485
+ struct rs485_control rs485; /* RS-485 support */
+#endif
+};
+
+/* this PORT is not in the standard serial.h. it's not actually used for
+ * anything since we only have one type of async serial-port anyway in this
+ * system.
+ */
+
+#define PORT_ETRAX 1
+
+/*
+ * Events are used to schedule things to happen at timer-interrupt
+ * time, instead of at rs interrupt time.
+ */
+#define RS_EVENT_WRITE_WAKEUP 0
+
+#endif /* __KERNEL__ */
+
+#endif /* !_ETRAX_SERIAL_H */
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 89769ce..b31f443 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -457,10 +457,11 @@
EXPORT_SYMBOL_GPL(spi_register_master);
-static int __unregister(struct device *dev, void *unused)
+static int __unregister(struct device *dev, void *master_dev)
{
/* note: before about 2.6.14-rc1 this would corrupt memory: */
- spi_unregister_device(to_spi_device(dev));
+ if (dev != master_dev)
+ spi_unregister_device(to_spi_device(dev));
return 0;
}
@@ -478,7 +479,8 @@
{
int dummy;
- dummy = device_for_each_child(master->dev.parent, NULL, __unregister);
+ dummy = device_for_each_child(master->dev.parent, &master->dev,
+ __unregister);
device_unregister(&master->dev);
}
EXPORT_SYMBOL_GPL(spi_unregister_master);
diff --git a/drivers/spi/spi_txx9.c b/drivers/spi/spi_txx9.c
index cc5094f..363ac8e 100644
--- a/drivers/spi/spi_txx9.c
+++ b/drivers/spi/spi_txx9.c
@@ -24,6 +24,7 @@
#include <linux/spi/spi.h>
#include <linux/err.h>
#include <linux/clk.h>
+#include <linux/io.h>
#include <asm/gpio.h>
@@ -74,7 +75,6 @@
struct list_head queue;
wait_queue_head_t waitq;
void __iomem *membase;
- int irq;
int baseclk;
struct clk *clk;
u32 max_speed_hz, min_speed_hz;
@@ -350,12 +350,12 @@
struct resource *res;
int ret = -ENODEV;
u32 mcr;
+ int irq;
master = spi_alloc_master(&dev->dev, sizeof(*c));
if (!master)
return ret;
c = spi_master_get_devdata(master);
- c->irq = -1;
platform_set_drvdata(dev, master);
INIT_WORK(&c->work, txx9spi_work);
@@ -381,32 +381,36 @@
res = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (!res)
- goto exit;
- c->membase = ioremap(res->start, res->end - res->start + 1);
+ goto exit_busy;
+ if (!devm_request_mem_region(&dev->dev,
+ res->start, res->end - res->start + 1,
+ "spi_txx9"))
+ goto exit_busy;
+ c->membase = devm_ioremap(&dev->dev,
+ res->start, res->end - res->start + 1);
if (!c->membase)
- goto exit;
+ goto exit_busy;
/* enter config mode */
mcr = txx9spi_rd(c, TXx9_SPMCR);
mcr &= ~(TXx9_SPMCR_OPMODE | TXx9_SPMCR_SPSTP | TXx9_SPMCR_BCLR);
txx9spi_wr(c, mcr | TXx9_SPMCR_CONFIG | TXx9_SPMCR_BCLR, TXx9_SPMCR);
- c->irq = platform_get_irq(dev, 0);
- if (c->irq < 0)
+ irq = platform_get_irq(dev, 0);
+ if (irq < 0)
+ goto exit_busy;
+ ret = devm_request_irq(&dev->dev, irq, txx9spi_interrupt, 0,
+ "spi_txx9", c);
+ if (ret)
goto exit;
- ret = request_irq(c->irq, txx9spi_interrupt, 0, dev->name, c);
- if (ret) {
- c->irq = -1;
- goto exit;
- }
c->workqueue = create_singlethread_workqueue(master->dev.parent->bus_id);
if (!c->workqueue)
- goto exit;
+ goto exit_busy;
c->last_chipselect = -1;
dev_info(&dev->dev, "at %#llx, irq %d, %dMHz\n",
- (unsigned long long)res->start, c->irq,
+ (unsigned long long)res->start, irq,
(c->baseclk + 500000) / 1000000);
master->bus_num = dev->id;
@@ -418,13 +422,11 @@
if (ret)
goto exit;
return 0;
+exit_busy:
+ ret = -EBUSY;
exit:
if (c->workqueue)
destroy_workqueue(c->workqueue);
- if (c->irq >= 0)
- free_irq(c->irq, c);
- if (c->membase)
- iounmap(c->membase);
if (c->clk) {
clk_disable(c->clk);
clk_put(c->clk);
@@ -442,8 +444,6 @@
spi_unregister_master(master);
platform_set_drvdata(dev, NULL);
destroy_workqueue(c->workqueue);
- free_irq(c->irq, c);
- iounmap(c->membase);
clk_disable(c->clk);
clk_put(c->clk);
spi_master_put(master);
diff --git a/drivers/spi/tle62x0.c b/drivers/spi/tle62x0.c
index 6da58ca..455991f 100644
--- a/drivers/spi/tle62x0.c
+++ b/drivers/spi/tle62x0.c
@@ -107,8 +107,11 @@
mutex_lock(&st->lock);
ret = tle62x0_read(st);
-
dev_dbg(dev, "tle62x0_read() returned %d\n", ret);
+ if (ret < 0) {
+ mutex_unlock(&st->lock);
+ return ret;
+ }
for (ptr = 0; ptr < (st->nr_gpio * 2)/8; ptr += 1) {
fault <<= 8;
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 6bfdba6..1f7ab15 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -1215,20 +1215,18 @@
static int keyspan_open (struct usb_serial_port *port, struct file *filp)
{
- struct keyspan_port_private *p_priv;
- struct keyspan_serial_private *s_priv;
- struct usb_serial *serial = port->serial;
+ struct keyspan_port_private *p_priv;
+ struct keyspan_serial_private *s_priv;
+ struct usb_serial *serial = port->serial;
const struct keyspan_device_details *d_details;
int i, err;
- int baud_rate, device_port;
struct urb *urb;
- unsigned int cflag;
s_priv = usb_get_serial_data(serial);
p_priv = usb_get_serial_port_data(port);
d_details = p_priv->device_details;
-
- dbg("%s - port%d.", __FUNCTION__, port->number);
+
+ dbg("%s - port%d.", __FUNCTION__, port->number);
/* Set some sane defaults */
p_priv->rts_state = 1;
@@ -1249,7 +1247,7 @@
urb->dev = serial->dev;
/* make sure endpoint data toggle is synchronized with the device */
-
+
usb_clear_halt(urb->dev, urb->pipe);
if ((err = usb_submit_urb(urb, GFP_KERNEL)) != 0) {
@@ -1265,30 +1263,6 @@
/* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), 0); */
}
- /* get the terminal config for the setup message now so we don't
- * need to send 2 of them */
-
- cflag = port->tty->termios->c_cflag;
- device_port = port->number - port->serial->minor;
-
- /* Baud rate calculation takes baud rate as an integer
- so other rates can be generated if desired. */
- baud_rate = tty_get_baud_rate(port->tty);
- /* If no match or invalid, leave as default */
- if (baud_rate >= 0
- && d_details->calculate_baud_rate(baud_rate, d_details->baudclk,
- NULL, NULL, NULL, device_port) == KEYSPAN_BAUD_RATE_OK) {
- p_priv->baud = baud_rate;
- }
-
- /* set CTS/RTS handshake etc. */
- p_priv->cflag = cflag;
- p_priv->flow_control = (cflag & CRTSCTS)? flow_cts: flow_none;
-
- keyspan_send_setup(port, 1);
- //mdelay(100);
- //keyspan_set_termios(port, NULL);
-
return (0);
}
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index cc4b60f..7d86e9e 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -503,7 +503,7 @@
config FB_CT65550
bool "Chips 65550 display support"
- depends on (FB = y) && PPC32
+ depends on (FB = y) && PPC32 && PCI
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
diff --git a/drivers/video/gbefb.c b/drivers/video/gbefb.c
index b9b572b..2e552d5 100644
--- a/drivers/video/gbefb.c
+++ b/drivers/video/gbefb.c
@@ -183,8 +183,8 @@
.vmode = FB_VMODE_NONINTERLACED,
};
-struct fb_videomode *default_mode = &default_mode_CRT;
-struct fb_var_screeninfo *default_var = &default_var_CRT;
+struct fb_videomode *default_mode __initdata = &default_mode_CRT;
+struct fb_var_screeninfo *default_var __initdata = &default_var_CRT;
static int flat_panel_enabled = 0;
diff --git a/drivers/video/geode/lxfb.h b/drivers/video/geode/lxfb.h
index 6c227f9..ca13c48 100644
--- a/drivers/video/geode/lxfb.h
+++ b/drivers/video/geode/lxfb.h
@@ -33,7 +33,7 @@
#define MSR_LX_GLD_CONFIG 0x48002001
#define MSR_LX_GLCP_DOTPLL 0x4c000015
-#define MSR_LX_DF_PADSEL 0x48000011
+#define MSR_LX_DF_PADSEL 0x48002011
#define MSR_LX_DC_SPARE 0x80000011
#define MSR_LX_DF_GLCONFIG 0x48002001
diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
index b3463dd..75836aa 100644
--- a/drivers/video/ps3fb.c
+++ b/drivers/video/ps3fb.c
@@ -727,7 +727,7 @@
static int ps3fb_get_vblank(struct fb_vblank *vblank)
{
- memset(vblank, 0, sizeof(&vblank));
+ memset(vblank, 0, sizeof(*vblank));
vblank->flags = FB_VBLANK_HAVE_VSYNC;
return 0;
}
diff --git a/drivers/video/s1d13xxxfb.c b/drivers/video/s1d13xxxfb.c
index a5333c1..b829dc7 100644
--- a/drivers/video/s1d13xxxfb.c
+++ b/drivers/video/s1d13xxxfb.c
@@ -540,7 +540,7 @@
int ret = 0;
u8 revision;
- dbg("probe called: device is %p\n", dev);
+ dbg("probe called: device is %p\n", pdev);
printk(KERN_INFO "Epson S1D13XXX FB Driver\n");
@@ -753,8 +753,11 @@
static int __init
s1d13xxxfb_init(void)
{
+
+#ifndef MODULE
if (fb_get_options("s1d13xxxfb", NULL))
return -ENODEV;
+#endif
return platform_driver_register(&s1d13xxxfb_driver);
}
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index bc7d236..37bd24b 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -1248,7 +1248,6 @@
if(found_mode) {
ivideo->sisfb_mode_idx = sisfb_validate_mode(ivideo,
ivideo->sisfb_mode_idx, ivideo->currentvbflags);
- ivideo->mode_no = sisbios_mode[ivideo->sisfb_mode_idx].mode_no[ivideo->mni];
} else {
ivideo->sisfb_mode_idx = -1;
}
@@ -1260,6 +1259,8 @@
return -EINVAL;
}
+ ivideo->mode_no = sisbios_mode[ivideo->sisfb_mode_idx].mode_no[ivideo->mni];
+
if(sisfb_search_refresh_rate(ivideo, ivideo->refresh_rate, ivideo->sisfb_mode_idx) == 0) {
ivideo->rate_idx = sisbios_mode[ivideo->sisfb_mode_idx].rate_idx;
ivideo->refresh_rate = 60;
diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index b983d26..d1d6c0f 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -926,8 +926,10 @@
int start, struct fb_info *info)
{
struct uvesafb_ktask *task;
+#ifdef CONFIG_X86
struct uvesafb_par *par = info->par;
int i = par->mode_idx;
+#endif
int err = 0;
/*
@@ -1103,11 +1105,11 @@
static int uvesafb_blank(int blank, struct fb_info *info)
{
- struct uvesafb_par *par = info->par;
struct uvesafb_ktask *task;
int err = 1;
-
#ifdef CONFIG_X86
+ struct uvesafb_par *par = info->par;
+
if (par->vbe_ib.capabilities & VBE_CAP_VGACOMPAT) {
int loop = 10000;
u8 seq = 0, crtc17 = 0;
diff --git a/drivers/w1/masters/ds2490.c b/drivers/w1/masters/ds2490.c
index 299e274..b63b5e04 100644
--- a/drivers/w1/masters/ds2490.c
+++ b/drivers/w1/masters/ds2490.c
@@ -233,7 +233,7 @@
{
int count, err;
- memset(st, 0, sizeof(st));
+ memset(st, 0, sizeof(*st));
count = 0;
err = usb_bulk_msg(dev->udev, usb_rcvbulkpipe(dev->udev, dev->ep[EP_STATUS]), buf, size, &count, 100);
diff --git a/fs/bfs/bfs.h b/fs/bfs/bfs.h
index 130f6c6..ac7a8b1 100644
--- a/fs/bfs/bfs.h
+++ b/fs/bfs/bfs.h
@@ -14,8 +14,6 @@
unsigned long si_blocks;
unsigned long si_freeb;
unsigned long si_freei;
- unsigned long si_lf_ioff;
- unsigned long si_lf_sblk;
unsigned long si_lf_eblk;
unsigned long si_lasti;
unsigned long * si_imap;
@@ -39,7 +37,7 @@
static inline struct bfs_inode_info *BFS_I(struct inode *inode)
{
- return list_entry(inode, struct bfs_inode_info, vfs_inode);
+ return container_of(inode, struct bfs_inode_info, vfs_inode);
}
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index 097f149..1fd056d 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -21,29 +21,32 @@
#define dprintf(x...)
#endif
-static int bfs_add_entry(struct inode * dir, const unsigned char * name, int namelen, int ino);
-static struct buffer_head * bfs_find_entry(struct inode * dir,
- const unsigned char * name, int namelen, struct bfs_dirent ** res_dir);
+static int bfs_add_entry(struct inode *dir, const unsigned char *name,
+ int namelen, int ino);
+static struct buffer_head *bfs_find_entry(struct inode *dir,
+ const unsigned char *name, int namelen,
+ struct bfs_dirent **res_dir);
-static int bfs_readdir(struct file * f, void * dirent, filldir_t filldir)
+static int bfs_readdir(struct file *f, void *dirent, filldir_t filldir)
{
- struct inode * dir = f->f_path.dentry->d_inode;
- struct buffer_head * bh;
- struct bfs_dirent * de;
+ struct inode *dir = f->f_path.dentry->d_inode;
+ struct buffer_head *bh;
+ struct bfs_dirent *de;
unsigned int offset;
int block;
lock_kernel();
- if (f->f_pos & (BFS_DIRENT_SIZE-1)) {
- printf("Bad f_pos=%08lx for %s:%08lx\n", (unsigned long)f->f_pos,
- dir->i_sb->s_id, dir->i_ino);
+ if (f->f_pos & (BFS_DIRENT_SIZE - 1)) {
+ printf("Bad f_pos=%08lx for %s:%08lx\n",
+ (unsigned long)f->f_pos,
+ dir->i_sb->s_id, dir->i_ino);
unlock_kernel();
return -EBADF;
}
while (f->f_pos < dir->i_size) {
- offset = f->f_pos & (BFS_BSIZE-1);
+ offset = f->f_pos & (BFS_BSIZE - 1);
block = BFS_I(dir)->i_sblock + (f->f_pos >> BFS_BSIZE_BITS);
bh = sb_bread(dir->i_sb, block);
if (!bh) {
@@ -54,7 +57,9 @@
de = (struct bfs_dirent *)(bh->b_data + offset);
if (de->ino) {
int size = strnlen(de->name, BFS_NAMELEN);
- if (filldir(dirent, de->name, size, f->f_pos, le16_to_cpu(de->ino), DT_UNKNOWN) < 0) {
+ if (filldir(dirent, de->name, size, f->f_pos,
+ le16_to_cpu(de->ino),
+ DT_UNKNOWN) < 0) {
brelse(bh);
unlock_kernel();
return 0;
@@ -62,7 +67,7 @@
}
offset += BFS_DIRENT_SIZE;
f->f_pos += BFS_DIRENT_SIZE;
- } while (offset < BFS_BSIZE && f->f_pos < dir->i_size);
+ } while ((offset < BFS_BSIZE) && (f->f_pos < dir->i_size));
brelse(bh);
}
@@ -78,13 +83,13 @@
extern void dump_imap(const char *, struct super_block *);
-static int bfs_create(struct inode * dir, struct dentry * dentry, int mode,
- struct nameidata *nd)
+static int bfs_create(struct inode *dir, struct dentry *dentry, int mode,
+ struct nameidata *nd)
{
int err;
- struct inode * inode;
- struct super_block * s = dir->i_sb;
- struct bfs_sb_info * info = BFS_SB(s);
+ struct inode *inode;
+ struct super_block *s = dir->i_sb;
+ struct bfs_sb_info *info = BFS_SB(s);
unsigned long ino;
inode = new_inode(s);
@@ -97,7 +102,7 @@
iput(inode);
return -ENOSPC;
}
- set_bit(ino, info->si_imap);
+ set_bit(ino, info->si_imap);
info->si_freei--;
inode->i_uid = current->fsuid;
inode->i_gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid;
@@ -113,9 +118,10 @@
BFS_I(inode)->i_eblock = 0;
insert_inode_hash(inode);
mark_inode_dirty(inode);
- dump_imap("create",s);
+ dump_imap("create", s);
- err = bfs_add_entry(dir, dentry->d_name.name, dentry->d_name.len, inode->i_ino);
+ err = bfs_add_entry(dir, dentry->d_name.name, dentry->d_name.len,
+ inode->i_ino);
if (err) {
inode_dec_link_count(inode);
iput(inode);
@@ -127,11 +133,12 @@
return 0;
}
-static struct dentry * bfs_lookup(struct inode * dir, struct dentry * dentry, struct nameidata *nd)
+static struct dentry *bfs_lookup(struct inode *dir, struct dentry *dentry,
+ struct nameidata *nd)
{
- struct inode * inode = NULL;
- struct buffer_head * bh;
- struct bfs_dirent * de;
+ struct inode *inode = NULL;
+ struct buffer_head *bh;
+ struct bfs_dirent *de;
if (dentry->d_name.len > BFS_NAMELEN)
return ERR_PTR(-ENAMETOOLONG);
@@ -152,13 +159,15 @@
return NULL;
}
-static int bfs_link(struct dentry * old, struct inode * dir, struct dentry * new)
+static int bfs_link(struct dentry *old, struct inode *dir,
+ struct dentry *new)
{
- struct inode * inode = old->d_inode;
+ struct inode *inode = old->d_inode;
int err;
lock_kernel();
- err = bfs_add_entry(dir, new->d_name.name, new->d_name.len, inode->i_ino);
+ err = bfs_add_entry(dir, new->d_name.name, new->d_name.len,
+ inode->i_ino);
if (err) {
unlock_kernel();
return err;
@@ -172,23 +181,23 @@
return 0;
}
-
-static int bfs_unlink(struct inode * dir, struct dentry * dentry)
+static int bfs_unlink(struct inode *dir, struct dentry *dentry)
{
int error = -ENOENT;
- struct inode * inode;
- struct buffer_head * bh;
- struct bfs_dirent * de;
+ struct inode *inode;
+ struct buffer_head *bh;
+ struct bfs_dirent *de;
inode = dentry->d_inode;
lock_kernel();
bh = bfs_find_entry(dir, dentry->d_name.name, dentry->d_name.len, &de);
- if (!bh || le16_to_cpu(de->ino) != inode->i_ino)
+ if (!bh || (le16_to_cpu(de->ino) != inode->i_ino))
goto out_brelse;
if (!inode->i_nlink) {
- printf("unlinking non-existent file %s:%lu (nlink=%d)\n", inode->i_sb->s_id,
- inode->i_ino, inode->i_nlink);
+ printf("unlinking non-existent file %s:%lu (nlink=%d)\n",
+ inode->i_sb->s_id, inode->i_ino,
+ inode->i_nlink);
inode->i_nlink = 1;
}
de->ino = 0;
@@ -205,12 +214,12 @@
return error;
}
-static int bfs_rename(struct inode * old_dir, struct dentry * old_dentry,
- struct inode * new_dir, struct dentry * new_dentry)
+static int bfs_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry)
{
- struct inode * old_inode, * new_inode;
- struct buffer_head * old_bh, * new_bh;
- struct bfs_dirent * old_de, * new_de;
+ struct inode *old_inode, *new_inode;
+ struct buffer_head *old_bh, *new_bh;
+ struct bfs_dirent *old_de, *new_de;
int error = -ENOENT;
old_bh = new_bh = NULL;
@@ -223,7 +232,7 @@
old_dentry->d_name.name,
old_dentry->d_name.len, &old_de);
- if (!old_bh || le16_to_cpu(old_de->ino) != old_inode->i_ino)
+ if (!old_bh || (le16_to_cpu(old_de->ino) != old_inode->i_ino))
goto end_rename;
error = -EPERM;
@@ -239,7 +248,8 @@
if (!new_bh) {
error = bfs_add_entry(new_dir,
new_dentry->d_name.name,
- new_dentry->d_name.len, old_inode->i_ino);
+ new_dentry->d_name.len,
+ old_inode->i_ino);
if (error)
goto end_rename;
}
@@ -268,11 +278,12 @@
.rename = bfs_rename,
};
-static int bfs_add_entry(struct inode * dir, const unsigned char * name, int namelen, int ino)
+static int bfs_add_entry(struct inode *dir, const unsigned char *name,
+ int namelen, int ino)
{
- struct buffer_head * bh;
- struct bfs_dirent * de;
- int block, sblock, eblock, off, eoff;
+ struct buffer_head *bh;
+ struct bfs_dirent *de;
+ int block, sblock, eblock, off, pos;
int i;
dprintf("name=%s, namelen=%d\n", name, namelen);
@@ -284,27 +295,24 @@
sblock = BFS_I(dir)->i_sblock;
eblock = BFS_I(dir)->i_eblock;
- eoff = dir->i_size % BFS_BSIZE;
- for (block=sblock; block<=eblock; block++) {
+ for (block = sblock; block <= eblock; block++) {
bh = sb_bread(dir->i_sb, block);
- if(!bh)
+ if (!bh)
return -ENOSPC;
- for (off=0; off<BFS_BSIZE; off+=BFS_DIRENT_SIZE) {
+ for (off = 0; off < BFS_BSIZE; off += BFS_DIRENT_SIZE) {
de = (struct bfs_dirent *)(bh->b_data + off);
- if (block==eblock && off>=eoff) {
- /* Do not read/interpret the garbage in the end of eblock. */
- de->ino = 0;
- }
if (!de->ino) {
- if ((block-sblock)*BFS_BSIZE + off >= dir->i_size) {
+ pos = (block - sblock) * BFS_BSIZE + off;
+ if (pos >= dir->i_size) {
dir->i_size += BFS_DIRENT_SIZE;
dir->i_ctime = CURRENT_TIME_SEC;
}
dir->i_mtime = CURRENT_TIME_SEC;
mark_inode_dirty(dir);
de->ino = cpu_to_le16((u16)ino);
- for (i=0; i<BFS_NAMELEN; i++)
- de->name[i] = (i < namelen) ? name[i] : 0;
+ for (i = 0; i < BFS_NAMELEN; i++)
+ de->name[i] =
+ (i < namelen) ? name[i] : 0;
mark_buffer_dirty(bh);
brelse(bh);
return 0;
@@ -315,25 +323,26 @@
return -ENOSPC;
}
-static inline int bfs_namecmp(int len, const unsigned char * name, const char * buffer)
+static inline int bfs_namecmp(int len, const unsigned char *name,
+ const char *buffer)
{
- if (len < BFS_NAMELEN && buffer[len])
+ if ((len < BFS_NAMELEN) && buffer[len])
return 0;
return !memcmp(name, buffer, len);
}
-static struct buffer_head * bfs_find_entry(struct inode * dir,
- const unsigned char * name, int namelen, struct bfs_dirent ** res_dir)
+static struct buffer_head *bfs_find_entry(struct inode *dir,
+ const unsigned char *name, int namelen,
+ struct bfs_dirent **res_dir)
{
- unsigned long block, offset;
- struct buffer_head * bh;
- struct bfs_dirent * de;
+ unsigned long block = 0, offset = 0;
+ struct buffer_head *bh = NULL;
+ struct bfs_dirent *de;
*res_dir = NULL;
if (namelen > BFS_NAMELEN)
return NULL;
- bh = NULL;
- block = offset = 0;
+
while (block * BFS_BSIZE + offset < dir->i_size) {
if (!bh) {
bh = sb_bread(dir->i_sb, BFS_I(dir)->i_sblock + block);
@@ -344,7 +353,8 @@
}
de = (struct bfs_dirent *)(bh->b_data + offset);
offset += BFS_DIRENT_SIZE;
- if (le16_to_cpu(de->ino) && bfs_namecmp(namelen, name, de->name)) {
+ if (le16_to_cpu(de->ino) &&
+ bfs_namecmp(namelen, name, de->name)) {
*res_dir = de;
return bh;
}
diff --git a/fs/bfs/file.c b/fs/bfs/file.c
index 911b4cc..b11e63e 100644
--- a/fs/bfs/file.c
+++ b/fs/bfs/file.c
@@ -2,6 +2,11 @@
* fs/bfs/file.c
* BFS file operations.
* Copyright (C) 1999,2000 Tigran Aivazian <tigran@veritas.com>
+ *
+ * Make the file block allocation algorithm understand the size
+ * of the underlying block device.
+ * Copyright (C) 2007 Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
+ *
*/
#include <linux/fs.h>
@@ -27,7 +32,8 @@
.splice_read = generic_file_splice_read,
};
-static int bfs_move_block(unsigned long from, unsigned long to, struct super_block *sb)
+static int bfs_move_block(unsigned long from, unsigned long to,
+ struct super_block *sb)
{
struct buffer_head *bh, *new;
@@ -43,21 +49,22 @@
}
static int bfs_move_blocks(struct super_block *sb, unsigned long start,
- unsigned long end, unsigned long where)
+ unsigned long end, unsigned long where)
{
unsigned long i;
dprintf("%08lx-%08lx->%08lx\n", start, end, where);
for (i = start; i <= end; i++)
if(bfs_move_block(i, where + i, sb)) {
- dprintf("failed to move block %08lx -> %08lx\n", i, where + i);
+ dprintf("failed to move block %08lx -> %08lx\n", i,
+ where + i);
return -EIO;
}
return 0;
}
-static int bfs_get_block(struct inode * inode, sector_t block,
- struct buffer_head * bh_result, int create)
+static int bfs_get_block(struct inode *inode, sector_t block,
+ struct buffer_head *bh_result, int create)
{
unsigned long phys;
int err;
@@ -66,9 +73,6 @@
struct bfs_inode_info *bi = BFS_I(inode);
struct buffer_head *sbh = info->si_sbh;
- if (block > info->si_blocks)
- return -EIO;
-
phys = bi->i_sblock + block;
if (!create) {
if (phys <= bi->i_eblock) {
@@ -79,21 +83,29 @@
return 0;
}
- /* if the file is not empty and the requested block is within the range
- of blocks allocated for this file, we can grant it */
- if (inode->i_size && phys <= bi->i_eblock) {
+ /*
+ * If the file is not empty and the requested block is within the
+ * range of blocks allocated for this file, we can grant it.
+ */
+ if (bi->i_sblock && (phys <= bi->i_eblock)) {
dprintf("c=%d, b=%08lx, phys=%08lx (interim block granted)\n",
create, (unsigned long)block, phys);
map_bh(bh_result, sb, phys);
return 0;
}
- /* the rest has to be protected against itself */
+ /* The file will be extended, so let's see if there is enough space. */
+ if (phys >= info->si_blocks)
+ return -ENOSPC;
+
+ /* The rest has to be protected against itself. */
lock_kernel();
- /* if the last data block for this file is the last allocated
- block, we can extend the file trivially, without moving it
- anywhere */
+ /*
+ * If the last data block for this file is the last allocated
+ * block, we can extend the file trivially, without moving it
+ * anywhere.
+ */
if (bi->i_eblock == info->si_lf_eblk) {
dprintf("c=%d, b=%08lx, phys=%08lx (simple extension)\n",
create, (unsigned long)block, phys);
@@ -106,13 +118,19 @@
goto out;
}
- /* Ok, we have to move this entire file to the next free block */
+ /* Ok, we have to move this entire file to the next free block. */
phys = info->si_lf_eblk + 1;
- if (bi->i_sblock) { /* if data starts on block 0 then there is no data */
+ if (phys + block >= info->si_blocks) {
+ err = -ENOSPC;
+ goto out;
+ }
+
+ if (bi->i_sblock) {
err = bfs_move_blocks(inode->i_sb, bi->i_sblock,
- bi->i_eblock, phys);
+ bi->i_eblock, phys);
if (err) {
- dprintf("failed to move ino=%08lx -> fs corruption\n", inode->i_ino);
+ dprintf("failed to move ino=%08lx -> fs corruption\n",
+ inode->i_ino);
goto out;
}
} else
@@ -124,8 +142,10 @@
phys += block;
info->si_lf_eblk = bi->i_eblock = phys;
- /* this assumes nothing can write the inode back while we are here
- * and thus update inode->i_blocks! (XXX)*/
+ /*
+ * This assumes nothing can write the inode back while we are here
+ * and thus update inode->i_blocks! (XXX)
+ */
info->si_freeb -= bi->i_eblock - bi->i_sblock + 1 - inode->i_blocks;
mark_inode_dirty(inode);
mark_buffer_dirty(sbh);
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index 7bd9c2b..294c41b 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -30,25 +30,26 @@
#define dprintf(x...)
#endif
-void dump_imap(const char *prefix, struct super_block * s);
+void dump_imap(const char *prefix, struct super_block *s);
-static void bfs_read_inode(struct inode * inode)
+static void bfs_read_inode(struct inode *inode)
{
unsigned long ino = inode->i_ino;
- struct bfs_inode * di;
- struct buffer_head * bh;
+ struct bfs_inode *di;
+ struct buffer_head *bh;
int block, off;
- if (ino < BFS_ROOT_INO || ino > BFS_SB(inode->i_sb)->si_lasti) {
+ if ((ino < BFS_ROOT_INO) || (ino > BFS_SB(inode->i_sb)->si_lasti)) {
printf("Bad inode number %s:%08lx\n", inode->i_sb->s_id, ino);
make_bad_inode(inode);
return;
}
- block = (ino - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
+ block = (ino - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
bh = sb_bread(inode->i_sb, block);
if (!bh) {
- printf("Unable to read inode %s:%08lx\n", inode->i_sb->s_id, ino);
+ printf("Unable to read inode %s:%08lx\n", inode->i_sb->s_id,
+ ino);
make_bad_inode(inode);
return;
}
@@ -56,7 +57,7 @@
off = (ino - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
di = (struct bfs_inode *)bh->b_data + off;
- inode->i_mode = 0x0000FFFF & le32_to_cpu(di->i_mode);
+ inode->i_mode = 0x0000FFFF & le32_to_cpu(di->i_mode);
if (le32_to_cpu(di->i_vtype) == BFS_VDIR) {
inode->i_mode |= S_IFDIR;
inode->i_op = &bfs_dir_inops;
@@ -70,48 +71,48 @@
BFS_I(inode)->i_sblock = le32_to_cpu(di->i_sblock);
BFS_I(inode)->i_eblock = le32_to_cpu(di->i_eblock);
+ BFS_I(inode)->i_dsk_ino = le16_to_cpu(di->i_ino);
inode->i_uid = le32_to_cpu(di->i_uid);
inode->i_gid = le32_to_cpu(di->i_gid);
inode->i_nlink = le32_to_cpu(di->i_nlink);
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_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);
inode->i_atime.tv_nsec = 0;
inode->i_mtime.tv_nsec = 0;
inode->i_ctime.tv_nsec = 0;
- BFS_I(inode)->i_dsk_ino = le16_to_cpu(di->i_ino); /* can be 0 so we store a copy */
brelse(bh);
}
-static int bfs_write_inode(struct inode * inode, int unused)
+static int bfs_write_inode(struct inode *inode, int unused)
{
unsigned int ino = (u16)inode->i_ino;
unsigned long i_sblock;
- struct bfs_inode * di;
- struct buffer_head * bh;
+ struct bfs_inode *di;
+ struct buffer_head *bh;
int block, off;
dprintf("ino=%08x\n", ino);
- if (ino < BFS_ROOT_INO || ino > BFS_SB(inode->i_sb)->si_lasti) {
+ if ((ino < BFS_ROOT_INO) || (ino > BFS_SB(inode->i_sb)->si_lasti)) {
printf("Bad inode number %s:%08x\n", inode->i_sb->s_id, ino);
return -EIO;
}
lock_kernel();
- block = (ino - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
+ block = (ino - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
bh = sb_bread(inode->i_sb, block);
if (!bh) {
- printf("Unable to read inode %s:%08x\n", inode->i_sb->s_id, ino);
+ printf("Unable to read inode %s:%08x\n",
+ inode->i_sb->s_id, ino);
unlock_kernel();
return -EIO;
}
- off = (ino - BFS_ROOT_INO)%BFS_INODES_PER_BLOCK;
+ off = (ino - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
di = (struct bfs_inode *)bh->b_data + off;
if (ino == BFS_ROOT_INO)
@@ -133,27 +134,26 @@
di->i_eoffset = cpu_to_le32(i_sblock * BFS_BSIZE + inode->i_size - 1);
mark_buffer_dirty(bh);
- dprintf("Written ino=%d into %d:%d\n",le16_to_cpu(di->i_ino),block,off);
brelse(bh);
unlock_kernel();
return 0;
}
-static void bfs_delete_inode(struct inode * inode)
+static void bfs_delete_inode(struct inode *inode)
{
unsigned long ino = inode->i_ino;
- struct bfs_inode * di;
- struct buffer_head * bh;
+ struct bfs_inode *di;
+ struct buffer_head *bh;
int block, off;
- struct super_block * s = inode->i_sb;
- struct bfs_sb_info * info = BFS_SB(s);
- struct bfs_inode_info * bi = BFS_I(inode);
+ struct super_block *s = inode->i_sb;
+ struct bfs_sb_info *info = BFS_SB(s);
+ struct bfs_inode_info *bi = BFS_I(inode);
dprintf("ino=%08lx\n", ino);
truncate_inode_pages(&inode->i_data, 0);
- if (ino < BFS_ROOT_INO || ino > info->si_lasti) {
+ if ((ino < BFS_ROOT_INO) || (ino > info->si_lasti)) {
printf("invalid ino=%08lx\n", ino);
return;
}
@@ -162,31 +162,35 @@
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
lock_kernel();
mark_inode_dirty(inode);
- block = (ino - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
+
+ block = (ino - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
bh = sb_bread(s, block);
if (!bh) {
- printf("Unable to read inode %s:%08lx\n", inode->i_sb->s_id, ino);
+ printf("Unable to read inode %s:%08lx\n",
+ inode->i_sb->s_id, ino);
unlock_kernel();
return;
}
- off = (ino - BFS_ROOT_INO)%BFS_INODES_PER_BLOCK;
- di = (struct bfs_inode *) bh->b_data + off;
+ off = (ino - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
+ di = (struct bfs_inode *)bh->b_data + off;
+ memset((void *)di, 0, sizeof(struct bfs_inode));
+ mark_buffer_dirty(bh);
+ brelse(bh);
+
if (bi->i_dsk_ino) {
- info->si_freeb += 1 + bi->i_eblock - bi->i_sblock;
+ info->si_freeb += BFS_FILEBLOCKS(bi);
info->si_freei++;
clear_bit(ino, info->si_imap);
dump_imap("delete_inode", s);
}
- di->i_ino = 0;
- di->i_sblock = 0;
- mark_buffer_dirty(bh);
- brelse(bh);
- /* if this was the last file, make the previous
- block "last files last block" even if there is no real file there,
- saves us 1 gap */
- if (info->si_lf_eblk == BFS_I(inode)->i_eblock) {
- info->si_lf_eblk = BFS_I(inode)->i_sblock - 1;
+ /*
+ * If this was the last file, make the previous block
+ * "last block of the last file" even if there is no
+ * real file there, saves us 1 gap.
+ */
+ if (info->si_lf_eblk == bi->i_eblock) {
+ info->si_lf_eblk = bi->i_sblock - 1;
mark_buffer_dirty(info->si_sbh);
}
unlock_kernel();
@@ -228,7 +232,7 @@
unlock_kernel();
}
-static struct kmem_cache * bfs_inode_cachep;
+static struct kmem_cache *bfs_inode_cachep;
static struct inode *bfs_alloc_inode(struct super_block *sb)
{
@@ -279,7 +283,7 @@
.statfs = bfs_statfs,
};
-void dump_imap(const char *prefix, struct super_block * s)
+void dump_imap(const char *prefix, struct super_block *s)
{
#ifdef DEBUG
int i;
@@ -287,25 +291,26 @@
if (!tmpbuf)
return;
- for (i=BFS_SB(s)->si_lasti; i>=0; i--) {
- if (i > PAGE_SIZE-100) break;
+ for (i = BFS_SB(s)->si_lasti; i >= 0; i--) {
+ if (i > PAGE_SIZE - 100) break;
if (test_bit(i, BFS_SB(s)->si_imap))
strcat(tmpbuf, "1");
else
strcat(tmpbuf, "0");
}
- printk(KERN_ERR "BFS-fs: %s: lasti=%08lx <%s>\n", prefix, BFS_SB(s)->si_lasti, tmpbuf);
+ printf("BFS-fs: %s: lasti=%08lx <%s>\n",
+ prefix, BFS_SB(s)->si_lasti, tmpbuf);
free_page((unsigned long)tmpbuf);
#endif
}
static int bfs_fill_super(struct super_block *s, void *data, int silent)
{
- struct buffer_head * bh;
- struct bfs_super_block * bfs_sb;
- struct inode * inode;
+ struct buffer_head *bh;
+ struct bfs_super_block *bfs_sb;
+ struct inode *inode;
unsigned i, imap_len;
- struct bfs_sb_info * info;
+ struct bfs_sb_info *info;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info)
@@ -329,14 +334,14 @@
s->s_magic = BFS_MAGIC;
info->si_sbh = bh;
- info->si_lasti = (le32_to_cpu(bfs_sb->s_start) - BFS_BSIZE)/sizeof(struct bfs_inode)
- + BFS_ROOT_INO - 1;
-
- imap_len = info->si_lasti/8 + 1;
+ info->si_lasti = (le32_to_cpu(bfs_sb->s_start) - BFS_BSIZE) /
+ sizeof(struct bfs_inode)
+ + BFS_ROOT_INO - 1;
+ imap_len = (info->si_lasti / 8) + 1;
info->si_imap = kzalloc(imap_len, GFP_KERNEL);
if (!info->si_imap)
goto out;
- for (i=0; i<BFS_ROOT_INO; i++)
+ for (i = 0; i < BFS_ROOT_INO; i++)
set_bit(i, info->si_imap);
s->s_op = &bfs_sops;
@@ -352,16 +357,15 @@
goto out;
}
- info->si_blocks = (le32_to_cpu(bfs_sb->s_end) + 1)>>BFS_BSIZE_BITS; /* for statfs(2) */
- info->si_freeb = (le32_to_cpu(bfs_sb->s_end) + 1 - le32_to_cpu(bfs_sb->s_start))>>BFS_BSIZE_BITS;
+ info->si_blocks = (le32_to_cpu(bfs_sb->s_end) + 1) >> BFS_BSIZE_BITS;
+ info->si_freeb = (le32_to_cpu(bfs_sb->s_end) + 1
+ - le32_to_cpu(bfs_sb->s_start)) >> BFS_BSIZE_BITS;
info->si_freei = 0;
info->si_lf_eblk = 0;
- info->si_lf_sblk = 0;
- info->si_lf_ioff = 0;
bh = NULL;
- for (i=BFS_ROOT_INO; i<=info->si_lasti; i++) {
+ for (i = BFS_ROOT_INO; i <= info->si_lasti; i++) {
struct bfs_inode *di;
- int block = (i - BFS_ROOT_INO)/BFS_INODES_PER_BLOCK + 1;
+ int block = (i - BFS_ROOT_INO) / BFS_INODES_PER_BLOCK + 1;
int off = (i - BFS_ROOT_INO) % BFS_INODES_PER_BLOCK;
unsigned long sblock, eblock;
@@ -384,11 +388,8 @@
sblock = le32_to_cpu(di->i_sblock);
eblock = le32_to_cpu(di->i_eblock);
- if (eblock > info->si_lf_eblk) {
+ if (eblock > info->si_lf_eblk)
info->si_lf_eblk = eblock;
- info->si_lf_sblk = sblock;
- info->si_lf_ioff = BFS_INO2OFF(i);
- }
}
brelse(bh);
if (!(s->s_flags & MS_RDONLY)) {
diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c
index 2150edf..6b7474a 100644
--- a/fs/ecryptfs/read_write.c
+++ b/fs/ecryptfs/read_write.c
@@ -87,7 +87,7 @@
loff_t offset;
int rc;
- offset = ((((off_t)page_for_lower->index) << PAGE_CACHE_SHIFT)
+ offset = ((((loff_t)page_for_lower->index) << PAGE_CACHE_SHIFT)
+ offset_in_page);
virt = kmap(page_for_lower);
rc = ecryptfs_write_lower(ecryptfs_inode, virt, offset, size);
diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c
index c2324d5..320b2cb 100644
--- a/fs/ext2/ioctl.c
+++ b/fs/ext2/ioctl.c
@@ -47,6 +47,11 @@
flags &= ~EXT2_DIRSYNC_FL;
mutex_lock(&inode->i_mutex);
+ /* Is it quota file? Do not allow user to mess with it */
+ if (IS_NOQUOTA(inode)) {
+ mutex_unlock(&inode->i_mutex);
+ return -EPERM;
+ }
oldflags = ei->i_flags;
/*
diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c
index c8e4ee3..8ca3bfd 100644
--- a/fs/ext3/dir.c
+++ b/fs/ext3/dir.c
@@ -67,7 +67,7 @@
unsigned long offset)
{
const char * error_msg = NULL;
- const int rlen = le16_to_cpu(de->rec_len);
+ const int rlen = ext3_rec_len_from_disk(de->rec_len);
if (rlen < EXT3_DIR_REC_LEN(1))
error_msg = "rec_len is smaller than minimal";
@@ -173,10 +173,10 @@
* least that it is non-zero. A
* failure will be detected in the
* dirent test below. */
- if (le16_to_cpu(de->rec_len) <
+ if (ext3_rec_len_from_disk(de->rec_len) <
EXT3_DIR_REC_LEN(1))
break;
- i += le16_to_cpu(de->rec_len);
+ i += ext3_rec_len_from_disk(de->rec_len);
}
offset = i;
filp->f_pos = (filp->f_pos & ~(sb->s_blocksize - 1))
@@ -197,7 +197,7 @@
ret = stored;
goto out;
}
- offset += le16_to_cpu(de->rec_len);
+ offset += ext3_rec_len_from_disk(de->rec_len);
if (le32_to_cpu(de->inode)) {
/* We might block in the next section
* if the data destination is
@@ -219,7 +219,7 @@
goto revalidate;
stored ++;
}
- filp->f_pos += le16_to_cpu(de->rec_len);
+ filp->f_pos += ext3_rec_len_from_disk(de->rec_len);
}
offset = 0;
brelse (bh);
diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c
index 4a2a02c..023a070 100644
--- a/fs/ext3/ioctl.c
+++ b/fs/ext3/ioctl.c
@@ -51,6 +51,11 @@
flags &= ~EXT3_DIRSYNC_FL;
mutex_lock(&inode->i_mutex);
+ /* Is it quota file? Do not allow user to mess with it */
+ if (IS_NOQUOTA(inode)) {
+ mutex_unlock(&inode->i_mutex);
+ return -EPERM;
+ }
oldflags = ei->i_flags;
/* The JOURNAL_DATA flag is modifiable only by root */
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index ec8170a..4ab6f76 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -177,6 +177,16 @@
struct inode *inode);
/*
+ * p is at least 6 bytes before the end of page
+ */
+static inline struct ext3_dir_entry_2 *
+ext3_next_entry(struct ext3_dir_entry_2 *p)
+{
+ return (struct ext3_dir_entry_2 *)((char *)p +
+ ext3_rec_len_from_disk(p->rec_len));
+}
+
+/*
* Future: use high four bits of block for coalesce-on-delete flags
* Mask them off for now.
*/
@@ -280,7 +290,7 @@
space += EXT3_DIR_REC_LEN(de->name_len);
names++;
}
- de = (struct ext3_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len));
+ de = ext3_next_entry(de);
}
printk("(%i)\n", names);
return (struct stats) { names, space, 1 };
@@ -547,14 +557,6 @@
/*
- * p is at least 6 bytes before the end of page
- */
-static inline struct ext3_dir_entry_2 *ext3_next_entry(struct ext3_dir_entry_2 *p)
-{
- return (struct ext3_dir_entry_2 *)((char*)p + le16_to_cpu(p->rec_len));
-}
-
-/*
* This function fills a red-black tree with information from a
* directory block. It returns the number directory entries loaded
* into the tree. If there is an error it is returned in err.
@@ -720,7 +722,7 @@
cond_resched();
}
/* XXX: do we need to check rec_len == 0 case? -Chris */
- de = (struct ext3_dir_entry_2 *) ((char *) de + le16_to_cpu(de->rec_len));
+ de = ext3_next_entry(de);
}
return count;
}
@@ -822,7 +824,7 @@
return 1;
}
/* prevent looping on a bad block */
- de_len = le16_to_cpu(de->rec_len);
+ de_len = ext3_rec_len_from_disk(de->rec_len);
if (de_len <= 0)
return -1;
offset += de_len;
@@ -1130,7 +1132,7 @@
rec_len = EXT3_DIR_REC_LEN(de->name_len);
memcpy (to, de, rec_len);
((struct ext3_dir_entry_2 *) to)->rec_len =
- cpu_to_le16(rec_len);
+ ext3_rec_len_to_disk(rec_len);
de->inode = 0;
map++;
to += rec_len;
@@ -1149,13 +1151,12 @@
prev = to = de;
while ((char*)de < base + size) {
- next = (struct ext3_dir_entry_2 *) ((char *) de +
- le16_to_cpu(de->rec_len));
+ next = ext3_next_entry(de);
if (de->inode && de->name_len) {
rec_len = EXT3_DIR_REC_LEN(de->name_len);
if (de > to)
memmove(to, de, rec_len);
- to->rec_len = cpu_to_le16(rec_len);
+ to->rec_len = ext3_rec_len_to_disk(rec_len);
prev = to;
to = (struct ext3_dir_entry_2 *) (((char *) to) + rec_len);
}
@@ -1229,8 +1230,8 @@
/* Fancy dance to stay within two buffers */
de2 = dx_move_dirents(data1, data2, map + split, count - split);
de = dx_pack_dirents(data1,blocksize);
- de->rec_len = cpu_to_le16(data1 + blocksize - (char *) de);
- de2->rec_len = cpu_to_le16(data2 + blocksize - (char *) de2);
+ de->rec_len = ext3_rec_len_to_disk(data1 + blocksize - (char *) de);
+ de2->rec_len = ext3_rec_len_to_disk(data2 + blocksize - (char *) de2);
dxtrace(dx_show_leaf (hinfo, (struct ext3_dir_entry_2 *) data1, blocksize, 1));
dxtrace(dx_show_leaf (hinfo, (struct ext3_dir_entry_2 *) data2, blocksize, 1));
@@ -1300,7 +1301,7 @@
return -EEXIST;
}
nlen = EXT3_DIR_REC_LEN(de->name_len);
- rlen = le16_to_cpu(de->rec_len);
+ rlen = ext3_rec_len_from_disk(de->rec_len);
if ((de->inode? rlen - nlen: rlen) >= reclen)
break;
de = (struct ext3_dir_entry_2 *)((char *)de + rlen);
@@ -1319,11 +1320,11 @@
/* By now the buffer is marked for journaling */
nlen = EXT3_DIR_REC_LEN(de->name_len);
- rlen = le16_to_cpu(de->rec_len);
+ rlen = ext3_rec_len_from_disk(de->rec_len);
if (de->inode) {
struct ext3_dir_entry_2 *de1 = (struct ext3_dir_entry_2 *)((char *)de + nlen);
- de1->rec_len = cpu_to_le16(rlen - nlen);
- de->rec_len = cpu_to_le16(nlen);
+ de1->rec_len = ext3_rec_len_to_disk(rlen - nlen);
+ de->rec_len = ext3_rec_len_to_disk(nlen);
de = de1;
}
de->file_type = EXT3_FT_UNKNOWN;
@@ -1400,17 +1401,18 @@
/* The 0th block becomes the root, move the dirents out */
fde = &root->dotdot;
- de = (struct ext3_dir_entry_2 *)((char *)fde + le16_to_cpu(fde->rec_len));
+ de = (struct ext3_dir_entry_2 *)((char *)fde +
+ ext3_rec_len_from_disk(fde->rec_len));
len = ((char *) root) + blocksize - (char *) de;
memcpy (data1, de, len);
de = (struct ext3_dir_entry_2 *) data1;
top = data1 + len;
- while ((char *)(de2=(void*)de+le16_to_cpu(de->rec_len)) < top)
+ while ((char *)(de2 = ext3_next_entry(de)) < top)
de = de2;
- de->rec_len = cpu_to_le16(data1 + blocksize - (char *) de);
+ de->rec_len = ext3_rec_len_to_disk(data1 + blocksize - (char *) de);
/* Initialize the root; the dot dirents already exist */
de = (struct ext3_dir_entry_2 *) (&root->dotdot);
- de->rec_len = cpu_to_le16(blocksize - EXT3_DIR_REC_LEN(2));
+ de->rec_len = ext3_rec_len_to_disk(blocksize - EXT3_DIR_REC_LEN(2));
memset (&root->info, 0, sizeof(root->info));
root->info.info_length = sizeof(root->info);
root->info.hash_version = EXT3_SB(dir->i_sb)->s_def_hash_version;
@@ -1490,7 +1492,7 @@
return retval;
de = (struct ext3_dir_entry_2 *) bh->b_data;
de->inode = 0;
- de->rec_len = cpu_to_le16(blocksize);
+ de->rec_len = ext3_rec_len_to_disk(blocksize);
return add_dirent_to_buf(handle, dentry, inode, de, bh);
}
@@ -1553,7 +1555,7 @@
goto cleanup;
node2 = (struct dx_node *)(bh2->b_data);
entries2 = node2->entries;
- node2->fake.rec_len = cpu_to_le16(sb->s_blocksize);
+ node2->fake.rec_len = ext3_rec_len_to_disk(sb->s_blocksize);
node2->fake.inode = 0;
BUFFER_TRACE(frame->bh, "get_write_access");
err = ext3_journal_get_write_access(handle, frame->bh);
@@ -1651,9 +1653,9 @@
BUFFER_TRACE(bh, "get_write_access");
ext3_journal_get_write_access(handle, bh);
if (pde)
- pde->rec_len =
- cpu_to_le16(le16_to_cpu(pde->rec_len) +
- le16_to_cpu(de->rec_len));
+ pde->rec_len = ext3_rec_len_to_disk(
+ ext3_rec_len_from_disk(pde->rec_len) +
+ ext3_rec_len_from_disk(de->rec_len));
else
de->inode = 0;
dir->i_version++;
@@ -1661,10 +1663,9 @@
ext3_journal_dirty_metadata(handle, bh);
return 0;
}
- i += le16_to_cpu(de->rec_len);
+ i += ext3_rec_len_from_disk(de->rec_len);
pde = de;
- de = (struct ext3_dir_entry_2 *)
- ((char *) de + le16_to_cpu(de->rec_len));
+ de = ext3_next_entry(de);
}
return -ENOENT;
}
@@ -1798,13 +1799,13 @@
de = (struct ext3_dir_entry_2 *) dir_block->b_data;
de->inode = cpu_to_le32(inode->i_ino);
de->name_len = 1;
- de->rec_len = cpu_to_le16(EXT3_DIR_REC_LEN(de->name_len));
+ de->rec_len = ext3_rec_len_to_disk(EXT3_DIR_REC_LEN(de->name_len));
strcpy (de->name, ".");
ext3_set_de_type(dir->i_sb, de, S_IFDIR);
- de = (struct ext3_dir_entry_2 *)
- ((char *) de + le16_to_cpu(de->rec_len));
+ de = ext3_next_entry(de);
de->inode = cpu_to_le32(dir->i_ino);
- de->rec_len = cpu_to_le16(inode->i_sb->s_blocksize-EXT3_DIR_REC_LEN(1));
+ de->rec_len = ext3_rec_len_to_disk(inode->i_sb->s_blocksize -
+ EXT3_DIR_REC_LEN(1));
de->name_len = 2;
strcpy (de->name, "..");
ext3_set_de_type(dir->i_sb, de, S_IFDIR);
@@ -1856,8 +1857,7 @@
return 1;
}
de = (struct ext3_dir_entry_2 *) bh->b_data;
- de1 = (struct ext3_dir_entry_2 *)
- ((char *) de + le16_to_cpu(de->rec_len));
+ de1 = ext3_next_entry(de);
if (le32_to_cpu(de->inode) != inode->i_ino ||
!le32_to_cpu(de1->inode) ||
strcmp (".", de->name) ||
@@ -1868,9 +1868,9 @@
brelse (bh);
return 1;
}
- offset = le16_to_cpu(de->rec_len) + le16_to_cpu(de1->rec_len);
- de = (struct ext3_dir_entry_2 *)
- ((char *) de1 + le16_to_cpu(de1->rec_len));
+ offset = ext3_rec_len_from_disk(de->rec_len) +
+ ext3_rec_len_from_disk(de1->rec_len);
+ de = ext3_next_entry(de1);
while (offset < inode->i_size ) {
if (!bh ||
(void *) de >= (void *) (bh->b_data+sb->s_blocksize)) {
@@ -1899,9 +1899,8 @@
brelse (bh);
return 0;
}
- offset += le16_to_cpu(de->rec_len);
- de = (struct ext3_dir_entry_2 *)
- ((char *) de + le16_to_cpu(de->rec_len));
+ offset += ext3_rec_len_from_disk(de->rec_len);
+ de = ext3_next_entry(de);
}
brelse (bh);
return 1;
@@ -2255,8 +2254,7 @@
}
#define PARENT_INO(buffer) \
- ((struct ext3_dir_entry_2 *) ((char *) buffer + \
- le16_to_cpu(((struct ext3_dir_entry_2 *) buffer)->rec_len)))->inode
+ (ext3_next_entry((struct ext3_dir_entry_2 *)(buffer))->inode)
/*
* Anybody can rename anything with this: the permission checks are left to the
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index c04c7cc..e7f894b 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -51,6 +51,11 @@
flags &= ~EXT4_DIRSYNC_FL;
mutex_lock(&inode->i_mutex);
+ /* Is it quota file? Do not allow user to mess with it */
+ if (IS_NOQUOTA(inode)) {
+ mutex_unlock(&inode->i_mutex);
+ return -EPERM;
+ }
oldflags = ei->i_flags;
/* The JOURNAL_DATA flag is modifiable only by root */
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 0fcdba9..535b373 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -55,9 +55,10 @@
if (!ff->reserved_req) {
kfree(ff);
ff = NULL;
+ } else {
+ INIT_LIST_HEAD(&ff->write_entry);
+ atomic_set(&ff->count, 0);
}
- INIT_LIST_HEAD(&ff->write_entry);
- atomic_set(&ff->count, 0);
}
return ff;
}
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 12aca8e..09ee07f 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -364,7 +364,6 @@
++next;
truncate_huge_page(page);
unlock_page(page);
- hugetlb_put_quota(mapping);
freed++;
}
huge_pagevec_release(&pvec);
@@ -859,15 +858,15 @@
return -ENOMEM;
}
-int hugetlb_get_quota(struct address_space *mapping)
+int hugetlb_get_quota(struct address_space *mapping, long delta)
{
int ret = 0;
struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(mapping->host->i_sb);
if (sbinfo->free_blocks > -1) {
spin_lock(&sbinfo->stat_lock);
- if (sbinfo->free_blocks > 0)
- sbinfo->free_blocks--;
+ if (sbinfo->free_blocks - delta >= 0)
+ sbinfo->free_blocks -= delta;
else
ret = -ENOMEM;
spin_unlock(&sbinfo->stat_lock);
@@ -876,13 +875,13 @@
return ret;
}
-void hugetlb_put_quota(struct address_space *mapping)
+void hugetlb_put_quota(struct address_space *mapping, long delta)
{
struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(mapping->host->i_sb);
if (sbinfo->free_blocks > -1) {
spin_lock(&sbinfo->stat_lock);
- sbinfo->free_blocks++;
+ sbinfo->free_blocks += delta;
spin_unlock(&sbinfo->stat_lock);
}
}
diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c
index 3c8663b..dfda12a 100644
--- a/fs/jfs/ioctl.c
+++ b/fs/jfs/ioctl.c
@@ -79,6 +79,9 @@
if (!S_ISDIR(inode->i_mode))
flags &= ~JFS_DIRSYNC_FL;
+ /* Is it quota file? Do not allow user to mess with it */
+ if (IS_NOQUOTA(inode))
+ return -EPERM;
jfs_get_inode_flags(jfs_inode);
oldflags = jfs_inode->mode2;
diff --git a/fs/open.c b/fs/open.c
index 3b69c53..4932b4d1 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -1061,7 +1061,7 @@
prevent_tail_call(ret);
return ret;
}
-EXPORT_SYMBOL_GPL(sys_open);
+EXPORT_UNUSED_SYMBOL_GPL(sys_open); /* To be deleted for 2.6.25 */
asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
int mode)
diff --git a/fs/proc/base.c b/fs/proc/base.c
index aeaf0d0..a17c2685 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2328,21 +2328,18 @@
void proc_flush_task(struct task_struct *task)
{
- int i, leader;
- struct pid *pid, *tgid;
+ int i;
+ struct pid *pid, *tgid = NULL;
struct upid *upid;
- leader = thread_group_leader(task);
- proc_flush_task_mnt(proc_mnt, task->pid, leader ? task->tgid : 0);
pid = task_pid(task);
- if (pid->level == 0)
- return;
+ if (thread_group_leader(task))
+ tgid = task_tgid(task);
- tgid = task_tgid(task);
- for (i = 1; i <= pid->level; i++) {
+ for (i = 0; i <= pid->level; i++) {
upid = &pid->numbers[i];
proc_flush_task_mnt(upid->ns->proc_mnt, upid->nr,
- leader ? 0 : tgid->numbers[i].nr);
+ tgid ? tgid->numbers[i].nr : 0);
}
upid = &pid->numbers[pid->level];
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 1bdb624..a9806bc 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -561,28 +561,33 @@
static void proc_kill_inodes(struct proc_dir_entry *de)
{
struct list_head *p;
- struct super_block *sb = proc_mnt->mnt_sb;
+ struct super_block *sb;
/*
* Actually it's a partial revoke().
*/
- file_list_lock();
- list_for_each(p, &sb->s_files) {
- struct file * filp = list_entry(p, struct file, f_u.fu_list);
- struct dentry * dentry = filp->f_path.dentry;
- struct inode * inode;
- const struct file_operations *fops;
+ spin_lock(&sb_lock);
+ list_for_each_entry(sb, &proc_fs_type.fs_supers, s_instances) {
+ file_list_lock();
+ list_for_each(p, &sb->s_files) {
+ struct file *filp = list_entry(p, struct file,
+ f_u.fu_list);
+ struct dentry *dentry = filp->f_path.dentry;
+ struct inode *inode;
+ const struct file_operations *fops;
- if (dentry->d_op != &proc_dentry_operations)
- continue;
- inode = dentry->d_inode;
- if (PDE(inode) != de)
- continue;
- fops = filp->f_op;
- filp->f_op = NULL;
- fops_put(fops);
+ if (dentry->d_op != &proc_dentry_operations)
+ continue;
+ inode = dentry->d_inode;
+ if (PDE(inode) != de)
+ continue;
+ fops = filp->f_op;
+ filp->f_op = NULL;
+ fops_put(fops);
+ }
+ file_list_unlock();
}
- file_list_unlock();
+ spin_unlock(&sb_lock);
}
static struct proc_dir_entry *proc_create(struct proc_dir_entry **parent,
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 1820eb2..1b2b6c6 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -78,3 +78,5 @@
{
return PROC_I(inode)->fd;
}
+
+extern struct file_system_type proc_fs_type;
diff --git a/fs/proc/root.c b/fs/proc/root.c
index ec9cb3b..1f86bb8 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -98,7 +98,7 @@
put_pid_ns(ns);
}
-static struct file_system_type proc_fs_type = {
+struct file_system_type proc_fs_type = {
.name = "proc",
.get_sb = proc_get_sb,
.kill_sb = proc_kill_sb,
diff --git a/fs/read_write.c b/fs/read_write.c
index 124693e..ea1f94c 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -370,7 +370,7 @@
return ret;
}
-EXPORT_SYMBOL_GPL(sys_read);
+EXPORT_UNUSED_SYMBOL_GPL(sys_read); /* to be deleted for 2.6.25 */
asmlinkage ssize_t sys_write(unsigned int fd, const char __user * buf, size_t count)
{
diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c
index c438a8f..e0f0f09 100644
--- a/fs/reiserfs/ioctl.c
+++ b/fs/reiserfs/ioctl.c
@@ -57,6 +57,9 @@
if (get_user(flags, (int __user *)arg))
return -EFAULT;
+ /* Is it quota file? Do not allow user to mess with it. */
+ if (IS_NOQUOTA(inode))
+ return -EPERM;
if (((flags ^ REISERFS_I(inode)->
i_attrs) & (REISERFS_IMMUTABLE_FL |
REISERFS_APPEND_FL))
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index ca41567..d2db241 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -1458,9 +1458,6 @@
}
bh = next;
} while (bh != head);
- if (PAGE_SIZE == bh->b_size) {
- cancel_dirty_page(page, PAGE_CACHE_SIZE);
- }
}
}
}
diff --git a/fs/smbfs/file.c b/fs/smbfs/file.c
index f5d14ce..efbe29a 100644
--- a/fs/smbfs/file.c
+++ b/fs/smbfs/file.c
@@ -234,7 +234,7 @@
VERBOSE("before read, size=%ld, flags=%x, atime=%ld\n",
(long)dentry->d_inode->i_size,
- dentry->d_inode->i_flags, dentry->d_inode->i_atime);
+ dentry->d_inode->i_flags, dentry->d_inode->i_atime.tv_sec);
status = generic_file_aio_read(iocb, iov, nr_segs, pos);
out:
@@ -269,7 +269,7 @@
struct dentry *dentry = file->f_path.dentry;
ssize_t status;
- VERBOSE("file %s/%s, pos=%Ld, count=%d\n",
+ VERBOSE("file %s/%s, pos=%Ld, count=%lu\n",
DENTRY_PATH(dentry), *ppos, count);
status = smb_revalidate_inode(dentry);
@@ -363,7 +363,8 @@
result = generic_file_aio_write(iocb, iov, nr_segs, pos);
VERBOSE("pos=%ld, size=%ld, mtime=%ld, atime=%ld\n",
(long) file->f_pos, (long) dentry->d_inode->i_size,
- dentry->d_inode->i_mtime, dentry->d_inode->i_atime);
+ dentry->d_inode->i_mtime.tv_sec,
+ dentry->d_inode->i_atime.tv_sec);
}
out:
return result;
diff --git a/fs/smbfs/inode.c b/fs/smbfs/inode.c
index ab51775..9416ead 100644
--- a/fs/smbfs/inode.c
+++ b/fs/smbfs/inode.c
@@ -536,7 +536,7 @@
/* Allocate the global temp buffer and some superblock helper structs */
/* FIXME: move these to the smb_sb_info struct */
- VERBOSE("alloc chunk = %d\n", sizeof(struct smb_ops) +
+ VERBOSE("alloc chunk = %lu\n", sizeof(struct smb_ops) +
sizeof(struct smb_mount_data_kernel));
mem = kmalloc(sizeof(struct smb_ops) +
sizeof(struct smb_mount_data_kernel), GFP_KERNEL);
diff --git a/fs/smbfs/proc.c b/fs/smbfs/proc.c
index feac460..d517a27 100644
--- a/fs/smbfs/proc.c
+++ b/fs/smbfs/proc.c
@@ -2593,7 +2593,7 @@
fattr->f_mtime.tv_sec = date_dos2unix(server, date, time);
fattr->f_mtime.tv_nsec = 0;
VERBOSE("name=%s, date=%x, time=%x, mtime=%ld\n",
- mask, date, time, fattr->f_mtime);
+ mask, date, time, fattr->f_mtime.tv_sec);
fattr->f_size = DVAL(req->rq_data, 12);
/* ULONG allocation size */
fattr->attr = WVAL(req->rq_data, 20);
diff --git a/fs/smbfs/smbiod.c b/fs/smbfs/smbiod.c
index 283c572..fae8e85 100644
--- a/fs/smbfs/smbiod.c
+++ b/fs/smbfs/smbiod.c
@@ -227,7 +227,7 @@
printk(KERN_ERR "smb_retry: signal failed [%d]\n", result);
goto out;
}
- VERBOSE("signalled pid %d\n", pid);
+ VERBOSE("signalled pid %d\n", pid_nr(pid));
/* FIXME: The retried requests should perhaps get a "time boost". */
diff --git a/include/asm-avr32/sysreg.h b/include/asm-avr32/sysreg.h
index c02bc83..dd21182 100644
--- a/include/asm-avr32/sysreg.h
+++ b/include/asm-avr32/sysreg.h
@@ -215,6 +215,8 @@
#define SYSREG_IRP_SIZE 6
/* Bitfields in PCCR */
+#define SYSREG_PCCR_E_OFFSET 0
+#define SYSREG_PCCR_E_SIZE 1
#define SYSREG_PCCR_R_OFFSET 1
#define SYSREG_PCCR_R_SIZE 1
#define SYSREG_PCCR_C_OFFSET 2
diff --git a/include/asm-cris/atomic.h b/include/asm-cris/atomic.h
index 0b51a87..2949a94 100644
--- a/include/asm-cris/atomic.h
+++ b/include/asm-cris/atomic.h
@@ -3,6 +3,8 @@
#ifndef __ASM_CRIS_ATOMIC__
#define __ASM_CRIS_ATOMIC__
+#include <linux/compiler.h>
+
#include <asm/system.h>
#include <asm/arch/atomic.h>
diff --git a/include/asm-cris/checksum.h b/include/asm-cris/checksum.h
index 180dbf2..c6c5be6 100644
--- a/include/asm-cris/checksum.h
+++ b/include/asm-cris/checksum.h
@@ -62,7 +62,7 @@
* returns a 16-bit checksum, already complemented
*/
-static inline __sum16 int csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
unsigned short len,
unsigned short proto,
__wsum sum)
diff --git a/include/asm-cris/ethernet.h b/include/asm-cris/ethernet.h
index 30da58a..4d58652 100644
--- a/include/asm-cris/ethernet.h
+++ b/include/asm-cris/ethernet.h
@@ -15,4 +15,7 @@
#define SET_ETH_DUPLEX_AUTO SIOCDEVPRIVATE+3 /* Auto neg duplex */
#define SET_ETH_DUPLEX_HALF SIOCDEVPRIVATE+4 /* Full duplex */
#define SET_ETH_DUPLEX_FULL SIOCDEVPRIVATE+5 /* Half duplex */
+#define SET_ETH_ENABLE_LEDS SIOCDEVPRIVATE+6 /* Enable net LEDs */
+#define SET_ETH_DISABLE_LEDS SIOCDEVPRIVATE+7 /* Disable net LEDs */
+#define SET_ETH_AUTONEG SIOCDEVPRIVATE+8
#endif /* _CRIS_ETHERNET_H */
diff --git a/include/asm-cris/fasttimer.h b/include/asm-cris/fasttimer.h
index a3a7713..8f8a8d6 100644
--- a/include/asm-cris/fasttimer.h
+++ b/include/asm-cris/fasttimer.h
@@ -1,9 +1,8 @@
-/* $Id: fasttimer.h,v 1.3 2004/05/14 10:19:19 starvik Exp $
+/*
* linux/include/asm-cris/fasttimer.h
*
* Fast timers for ETRAX100LX
- * This may be useful in other OS than Linux so use 2 space indentation...
- * Copyright (C) 2000, 2002 Axis Communications AB
+ * Copyright (C) 2000-2007 Axis Communications AB
*/
#include <linux/time.h> /* struct timeval */
#include <linux/timex.h>
@@ -12,11 +11,16 @@
typedef void fast_timer_function_type(unsigned long);
+struct fasttime_t {
+ unsigned long tv_jiff; /* jiffies */
+ unsigned long tv_usec; /* microseconds */
+};
+
struct fast_timer{ /* Close to timer_list */
struct fast_timer *next;
struct fast_timer *prev;
- struct timeval tv_set;
- struct timeval tv_expires;
+ struct fasttime_t tv_set;
+ struct fasttime_t tv_expires;
unsigned long delay_us;
fast_timer_function_type *function;
unsigned long data;
@@ -38,6 +42,6 @@
void schedule_usleep(unsigned long us);
-void fast_timer_init(void);
+int fast_timer_init(void);
#endif
diff --git a/include/asm-cris/hardirq.h b/include/asm-cris/hardirq.h
index 1c13dd3..74178ad 100644
--- a/include/asm-cris/hardirq.h
+++ b/include/asm-cris/hardirq.h
@@ -1,6 +1,7 @@
#ifndef __ASM_HARDIRQ_H
#define __ASM_HARDIRQ_H
+#include <asm/irq.h>
#include <linux/threads.h>
#include <linux/cache.h>
diff --git a/include/asm-cris/posix_types.h b/include/asm-cris/posix_types.h
index 92000d0..3a5e4c4 100644
--- a/include/asm-cris/posix_types.h
+++ b/include/asm-cris/posix_types.h
@@ -52,7 +52,6 @@
} __kernel_fsid_t;
#ifdef __KERNEL__
-#include <linux/bitops.h>
#undef __FD_SET
#define __FD_SET(fd,fdsetp) set_bit(fd, (void *)(fdsetp))
diff --git a/include/asm-cris/termbits.h b/include/asm-cris/termbits.h
index 71c1b36..66e1a74 100644
--- a/include/asm-cris/termbits.h
+++ b/include/asm-cris/termbits.h
@@ -171,6 +171,19 @@
#define B115200 0010002
#define B230400 0010003
#define B460800 0010004
+
+/* Unsupported rates, but needed to avoid compile error. */
+#define B500000 0010005
+#define B576000 0010006
+#define B1000000 0010010
+#define B1152000 0010011
+#define B1500000 0010012
+#define B2000000 0010013
+#define B2500000 0010014
+#define B3000000 0010015
+#define B3500000 0010016
+#define B4000000 0010017
+
/* etrax supports these additional three baud rates */
#define B921600 0010005
#define B1843200 0010006
diff --git a/include/asm-cris/thread_info.h b/include/asm-cris/thread_info.h
index fde39f6..784668a 100644
--- a/include/asm-cris/thread_info.h
+++ b/include/asm-cris/thread_info.h
@@ -32,6 +32,7 @@
unsigned long flags; /* low level flags */
__u32 cpu; /* current CPU */
int preempt_count; /* 0 => preemptable, <0 => BUG */
+ __u32 tls; /* TLS for this thread */
mm_segment_t addr_limit; /* thread address space:
0-0xBFFFFFFF for user-thead
@@ -79,14 +80,18 @@
* - other flags in MSW
*/
#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
-#define TIF_SIGPENDING 1 /* signal pending */
-#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
+#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 9 /* restore signal mask in do_signal() */
#define TIF_POLLING_NRFLAG 16 /* true if poll_idle() is polling TIF_NEED_RESCHED */
#define TIF_MEMDIE 17
#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_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */
diff --git a/include/asm-cris/tlb.h b/include/asm-cris/tlb.h
index 6cc26de..7724246 100644
--- a/include/asm-cris/tlb.h
+++ b/include/asm-cris/tlb.h
@@ -1,6 +1,8 @@
#ifndef _CRIS_TLB_H
#define _CRIS_TLB_H
+#include <linux/pagemap.h>
+
#include <asm/arch/tlb.h>
/*
diff --git a/include/asm-cris/unistd.h b/include/asm-cris/unistd.h
index 7c90fa9..6f2d924 100644
--- a/include/asm-cris/unistd.h
+++ b/include/asm-cris/unistd.h
@@ -255,6 +255,7 @@
#define __NR_io_submit 248
#define __NR_io_cancel 249
#define __NR_fadvise64 250
+/* 251 is available for reuse (was briefly sys_set_zone_reclaim) */
#define __NR_exit_group 252
#define __NR_lookup_dcookie 253
#define __NR_epoll_create 254
@@ -292,10 +293,46 @@
#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_fstatat64 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_move_pages 317
+#define __NR_getcpu 318
+#define __NR_epoll_pwait 319
+#define __NR_utimensat 320
+#define __NR_signalfd 321
+#define __NR_timerfd 322
+#define __NR_eventfd 323
+#define __NR_fallocate 324
#ifdef __KERNEL__
-#define NR_syscalls 289
+#define NR_syscalls 325
#include <asm/arch/unistd.h>
diff --git a/include/asm-mips/cpu-info.h b/include/asm-mips/cpu-info.h
index 94f1c81..ed5c02c 100644
--- a/include/asm-mips/cpu-info.h
+++ b/include/asm-mips/cpu-info.h
@@ -54,6 +54,7 @@
struct cache_desc dcache; /* Primary D or combined I/D cache */
struct cache_desc scache; /* Secondary cache */
struct cache_desc tcache; /* Tertiary/split secondary cache */
+ int srsets; /* Shadow register sets */
#if defined(CONFIG_MIPS_MT_SMTC)
/*
* In the MIPS MT "SMTC" model, each TC is considered
diff --git a/include/asm-mips/lasat/lasatint.h b/include/asm-mips/lasat/lasatint.h
index 581dc45..e0d2458 100644
--- a/include/asm-mips/lasat/lasatint.h
+++ b/include/asm-mips/lasat/lasatint.h
@@ -1,11 +1,6 @@
#ifndef __ASM_LASAT_LASATINT_H
#define __ASM_LASAT_LASATINT_H
-#include <linux/irq.h>
-
-#define LASATINT_BASE MIPS_CPU_IRQ_BASE
-#define LASATINT_END (LASATINT_BASE + 16)
-
/* lasat 100 */
#define LASAT_INT_STATUS_REG_100 (KSEG1ADDR(0x1c880000))
#define LASAT_INT_MASK_REG_100 (KSEG1ADDR(0x1c890000))
diff --git a/include/asm-mips/mach-lasat/irq.h b/include/asm-mips/mach-lasat/irq.h
new file mode 100644
index 0000000..da75f89
--- /dev/null
+++ b/include/asm-mips/mach-lasat/irq.h
@@ -0,0 +1,13 @@
+#ifndef _ASM_MACH_LASAT_IRQ_H
+#define _ASM_MACH_LASAT_IRQ_H
+
+#define LASAT_CASCADE_IRQ (MIPS_CPU_IRQ_BASE + 0)
+
+#define LASAT_IRQ_BASE 8
+#define LASAT_IRQ_END 23
+
+#define NR_IRQS 24
+
+#include_next <irq.h>
+
+#endif /* _ASM_MACH_LASAT_IRQ_H */
diff --git a/include/asm-mips/timex.h b/include/asm-mips/timex.h
index 5816ad1..6529704 100644
--- a/include/asm-mips/timex.h
+++ b/include/asm-mips/timex.h
@@ -35,7 +35,7 @@
static inline cycles_t get_cycles(void)
{
- return read_c0_count();
+ return 0;
}
#endif /* __KERNEL__ */
diff --git a/include/asm-um/pgtable-3level.h b/include/asm-um/pgtable-3level.h
index aa82b88..3ebafba 100644
--- a/include/asm-um/pgtable-3level.h
+++ b/include/asm-um/pgtable-3level.h
@@ -71,7 +71,7 @@
static inline void pud_clear (pud_t *pud)
{
- set_pud(pud, __pud(0));
+ set_pud(pud, __pud(_PAGE_NEWPAGE));
}
#define pud_page(pud) phys_to_page(pud_val(pud) & PAGE_MASK)
diff --git a/include/asm-x86/mach-default/mach_reboot.h b/include/asm-x86/mach-default/mach_reboot.h
index e23fd9f..6adee6a 100644
--- a/include/asm-x86/mach-default/mach_reboot.h
+++ b/include/asm-x86/mach-default/mach_reboot.h
@@ -49,7 +49,7 @@
udelay(50);
kb_wait();
udelay(50);
- outb(cmd | 0x04, 0x60); /* set "System flag" */
+ outb(cmd | 0x14, 0x60); /* set "System flag" and "Keyboard Disabled" */
udelay(50);
kb_wait();
udelay(50);
diff --git a/include/asm-x86/mach-es7000/mach_mpparse.h b/include/asm-x86/mach-es7000/mach_mpparse.h
index 8aa1054..52ee75c 100644
--- a/include/asm-x86/mach-es7000/mach_mpparse.h
+++ b/include/asm-x86/mach-es7000/mach_mpparse.h
@@ -29,9 +29,9 @@
static inline int es7000_check_dsdt(void)
{
struct acpi_table_header header;
- memcpy(&header, 0, sizeof(struct acpi_table_header));
- acpi_get_table_header(ACPI_SIG_DSDT, 0, &header);
- if (!strncmp(header.oem_id, "UNISYS", 6))
+
+ if (ACPI_SUCCESS(acpi_get_table_header(ACPI_SIG_DSDT, 0, &header)) &&
+ !strncmp(header.oem_id, "UNISYS", 6))
return 1;
return 0;
}
diff --git a/include/asm-x86/mach-voyager/setup_arch.h b/include/asm-x86/mach-voyager/setup_arch.h
index 1710ae1..71729ca 100644
--- a/include/asm-x86/mach-voyager/setup_arch.h
+++ b/include/asm-x86/mach-voyager/setup_arch.h
@@ -1,5 +1,5 @@
#include <asm/voyager.h>
-#include <asm/setup_32.h>
+#include <asm/setup.h>
#define VOYAGER_BIOS_INFO ((struct voyager_bios_info *) \
(&boot_params.apm_bios_info))
diff --git a/include/asm-x86/ptrace.h b/include/asm-x86/ptrace.h
index 213c973..51ddb25 100644
--- a/include/asm-x86/ptrace.h
+++ b/include/asm-x86/ptrace.h
@@ -60,7 +60,7 @@
#define instruction_pointer(regs) ((regs)->eip)
#define frame_pointer(regs) ((regs)->ebp)
-#define stack_pointer(regs) ((regs)->esp)
+#define stack_pointer(regs) ((unsigned long)(regs))
#define regs_return_value(regs) ((regs)->eax)
extern unsigned long profile_pc(struct pt_regs *regs);
diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index 0b9bfbd..d62fcee 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -13,12 +13,6 @@
/* */
-#ifdef CONFIG_CGROUP_CPUACCT
-SUBSYS(cpuacct)
-#endif
-
-/* */
-
#ifdef CONFIG_CGROUP_DEBUG
SUBSYS(debug)
#endif
diff --git a/include/linux/cpu_acct.h b/include/linux/cpu_acct.h
deleted file mode 100644
index 6b5fd8a..0000000
--- a/include/linux/cpu_acct.h
+++ /dev/null
@@ -1,14 +0,0 @@
-
-#ifndef _LINUX_CPU_ACCT_H
-#define _LINUX_CPU_ACCT_H
-
-#include <linux/cgroup.h>
-#include <asm/cputime.h>
-
-#ifdef CONFIG_CGROUP_CPUACCT
-extern void cpuacct_charge(struct task_struct *, cputime_t cputime);
-#else
-static void inline cpuacct_charge(struct task_struct *p, cputime_t cputime) {}
-#endif
-
-#endif
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index 6413445..241c01c 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -656,6 +656,26 @@
#define EXT3_DIR_ROUND (EXT3_DIR_PAD - 1)
#define EXT3_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT3_DIR_ROUND) & \
~EXT3_DIR_ROUND)
+#define EXT3_MAX_REC_LEN ((1<<16)-1)
+
+static inline unsigned ext3_rec_len_from_disk(__le16 dlen)
+{
+ unsigned len = le16_to_cpu(dlen);
+
+ if (len == EXT3_MAX_REC_LEN)
+ return 1 << 16;
+ return len;
+}
+
+static inline __le16 ext3_rec_len_to_disk(unsigned len)
+{
+ if (len == (1 << 16))
+ return cpu_to_le16(EXT3_MAX_REC_LEN);
+ else if (len > (1 << 16))
+ BUG();
+ return cpu_to_le16(len);
+}
+
/*
* Hash Tree Directory indexing
* (c) Daniel Phillips, 2001
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index ea0f50b..2496879 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -19,7 +19,7 @@
int hugetlb_sysctl_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
int hugetlb_treat_movable_handler(struct ctl_table *, int, struct file *, void __user *, size_t *, loff_t *);
int copy_hugetlb_page_range(struct mm_struct *, struct mm_struct *, struct vm_area_struct *);
-int follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *, struct page **, struct vm_area_struct **, unsigned long *, int *, int);
+int follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *, struct page **, struct vm_area_struct **, unsigned long *, int *, int, int);
void unmap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long);
void __unmap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long);
int hugetlb_prefault(struct address_space *, struct vm_area_struct *);
@@ -106,7 +106,7 @@
return 0;
}
-#define follow_hugetlb_page(m,v,p,vs,a,b,i) ({ BUG(); 0; })
+#define follow_hugetlb_page(m,v,p,vs,a,b,i,w) ({ BUG(); 0; })
#define follow_huge_addr(mm, addr, write) ERR_PTR(-EINVAL)
#define copy_hugetlb_page_range(src, dst, vma) ({ BUG(); 0; })
#define hugetlb_prefault(mapping, vma) ({ BUG(); 0; })
@@ -165,8 +165,10 @@
extern const struct file_operations hugetlbfs_file_operations;
extern struct vm_operations_struct hugetlb_vm_ops;
struct file *hugetlb_file_setup(const char *name, size_t);
-int hugetlb_get_quota(struct address_space *mapping);
-void hugetlb_put_quota(struct address_space *mapping);
+int hugetlb_get_quota(struct address_space *mapping, long delta);
+void hugetlb_put_quota(struct address_space *mapping, long delta);
+
+#define BLOCKS_PER_HUGEPAGE (HPAGE_SIZE / 512)
static inline int is_file_hugepages(struct file *file)
{
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 8033e6b..a100c9f 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -400,11 +400,6 @@
extern void i2c_clients_command(struct i2c_adapter *adap,
unsigned int cmd, void *arg);
-/* returns -EBUSY if address has been taken, 0 if not. Note that the only
- other place at which this is called is within i2c_attach_client; so
- you can cheat by simply not registering. Not recommended, of course! */
-extern int i2c_check_addr (struct i2c_adapter *adapter, int addr);
-
/* Detect function. It iterates over all possible addresses itself.
* It will only call found_proc if some client is connected at the
* specific address (unless a 'force' matched);
diff --git a/include/linux/mc146818rtc.h b/include/linux/mc146818rtc.h
index 580b3f4..2f4e957 100644
--- a/include/linux/mc146818rtc.h
+++ b/include/linux/mc146818rtc.h
@@ -109,8 +109,11 @@
#ifndef ARCH_RTC_LOCATION /* Override by <asm/mc146818rtc.h>? */
#define RTC_IO_EXTENT 0x8
+#define RTC_IO_EXTENT_USED 0x2
#define RTC_IOMAPPED 1 /* Default to I/O mapping. */
+#else
+#define RTC_IO_EXTENT_USED RTC_IO_EXTENT
#endif /* ARCH_RTC_LOCATION */
#endif /* _MC146818RTC_H */
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index cd6cdb3..1ee009e 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2332,6 +2332,7 @@
#define PCI_DEVICE_ID_INTEL_MCH_PC1 0x359a
#define PCI_DEVICE_ID_INTEL_E7525_MCH 0x359e
#define PCI_DEVICE_ID_INTEL_IOAT_CNB 0x360b
+#define PCI_DEVICE_ID_INTEL_IOAT_SNB 0x402f
#define PCI_DEVICE_ID_INTEL_IOAT_SCNB 0x65ff
#define PCI_DEVICE_ID_INTEL_TOLAPAI_0 0x5031
#define PCI_DEVICE_ID_INTEL_TOLAPAI_1 0x5032
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index 0135c76..1689e28 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -29,6 +29,7 @@
extern struct pid_namespace init_pid_ns;
+#ifdef CONFIG_PID_NS
static inline struct pid_namespace *get_pid_ns(struct pid_namespace *ns)
{
if (ns != &init_pid_ns)
@@ -45,6 +46,28 @@
kref_put(&ns->kref, free_pid_ns);
}
+#else /* !CONFIG_PID_NS */
+#include <linux/err.h>
+
+static inline struct pid_namespace *get_pid_ns(struct pid_namespace *ns)
+{
+ return ns;
+}
+
+static inline struct pid_namespace *
+copy_pid_ns(unsigned long flags, struct pid_namespace *ns)
+{
+ if (flags & CLONE_NEWPID)
+ ns = ERR_PTR(-EINVAL);
+ return ns;
+}
+
+static inline void put_pid_ns(struct pid_namespace *ns)
+{
+}
+
+#endif /* CONFIG_PID_NS */
+
static inline struct pid_namespace *task_active_pid_ns(struct task_struct *tsk)
{
return tsk->nsproxy->pid_ns;
diff --git a/include/linux/selinux.h b/include/linux/selinux.h
index d1b7ca6..6080f73 100644
--- a/include/linux/selinux.h
+++ b/include/linux/selinux.h
@@ -136,7 +136,7 @@
char *rulestr,
struct selinux_audit_rule **rule)
{
- return -ENOTSUPP;
+ return -EOPNOTSUPP;
}
static inline void selinux_audit_rule_free(struct selinux_audit_rule *rule)
diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index 7aed02c..cff4608 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -124,23 +124,7 @@
extern int reqsk_queue_alloc(struct request_sock_queue *queue,
unsigned int nr_table_entries);
-static inline struct listen_sock *reqsk_queue_yank_listen_sk(struct request_sock_queue *queue)
-{
- struct listen_sock *lopt;
-
- write_lock_bh(&queue->syn_wait_lock);
- lopt = queue->listen_opt;
- queue->listen_opt = NULL;
- write_unlock_bh(&queue->syn_wait_lock);
-
- return lopt;
-}
-
-static inline void __reqsk_queue_destroy(struct request_sock_queue *queue)
-{
- kfree(reqsk_queue_yank_listen_sk(queue));
-}
-
+extern void __reqsk_queue_destroy(struct request_sock_queue *queue);
extern void reqsk_queue_destroy(struct request_sock_queue *queue);
static inline struct request_sock *
diff --git a/include/net/sock.h b/include/net/sock.h
index 5504fb9..567e468 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1235,14 +1235,16 @@
gfp_t gfp)
{
struct sk_buff *skb;
- int hdr_len;
- hdr_len = SKB_DATA_ALIGN(sk->sk_prot->max_header);
- skb = alloc_skb_fclone(size + hdr_len, gfp);
+ skb = alloc_skb_fclone(size + sk->sk_prot->max_header, gfp);
if (skb) {
skb->truesize += mem;
if (sk_stream_wmem_schedule(sk, skb->truesize)) {
- skb_reserve(skb, hdr_len);
+ /*
+ * Make sure that we have exactly size bytes
+ * available to the caller, no more, no less.
+ */
+ skb_reserve(skb, skb_tailroom(skb) - size);
return skb;
}
__kfree_skb(skb);
diff --git a/include/pcmcia/cs_types.h b/include/pcmcia/cs_types.h
index c1d1629..5f38803 100644
--- a/include/pcmcia/cs_types.h
+++ b/include/pcmcia/cs_types.h
@@ -21,7 +21,7 @@
#include <sys/types.h>
#endif
-#if defined(__arm__) || defined(__mips__)
+#if defined(__arm__) || defined(__mips__) || defined(__avr32__)
/* This (ioaddr_t) is exposed to userspace & hence cannot be changed. */
typedef u_int ioaddr_t;
#else
diff --git a/init/Kconfig b/init/Kconfig
index 8b88d0b..c5b354b 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -215,6 +215,18 @@
vservers, to use user namespaces to provide different
user info for different servers. If unsure, say N.
+config PID_NS
+ bool "PID Namespaces (EXPERIMENTAL)"
+ default n
+ depends on EXPERIMENTAL
+ help
+ Suport process id namespaces. This allows having multiple
+ process with the same pid as long as they are in different
+ pid namespaces. This is a building block of containers.
+
+ Unless you want to work with an experimental feature
+ say N here.
+
config AUDIT
bool "Auditing support"
depends on NET
@@ -301,13 +313,6 @@
for instance virtual servers and checkpoint/restart
jobs.
-config CGROUP_CPUACCT
- bool "Simple CPU accounting cgroup subsystem"
- depends on CGROUPS
- help
- Provides a simple Resource Controller for monitoring the
- total CPU consumed by the tasks in a cgroup
-
config CPUSETS
bool "Cpuset support"
depends on SMP && CGROUPS
diff --git a/kernel/Makefile b/kernel/Makefile
index f60afe7..dfa9695 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -40,7 +40,6 @@
obj-$(CONFIG_CGROUPS) += cgroup.o
obj-$(CONFIG_CGROUP_DEBUG) += cgroup_debug.o
obj-$(CONFIG_CPUSETS) += cpuset.o
-obj-$(CONFIG_CGROUP_CPUACCT) += cpu_acct.o
obj-$(CONFIG_CGROUP_NS) += ns_cgroup.o
obj-$(CONFIG_IKCONFIG) += configs.o
obj-$(CONFIG_STOP_MACHINE) += stop_machine.o
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 3fe21e1..1a3c239 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1,6 +1,4 @@
/*
- * kernel/cgroup.c
- *
* Generic process-grouping system.
*
* Based originally on the cpuset system, extracted by Paul Menage
@@ -2200,7 +2198,8 @@
{
struct cgroup_subsys_state *css;
struct list_head *l;
- printk(KERN_ERR "Initializing cgroup subsys %s\n", ss->name);
+
+ printk(KERN_INFO "Initializing cgroup subsys %s\n", ss->name);
/* Create the top cgroup state for this subsystem */
ss->root = &rootnode;
@@ -2273,7 +2272,7 @@
BUG_ON(!ss->create);
BUG_ON(!ss->destroy);
if (ss->subsys_id != i) {
- printk(KERN_ERR "Subsys %s id == %d\n",
+ printk(KERN_ERR "cgroup: Subsys %s id == %d\n",
ss->name, ss->subsys_id);
BUG();
}
@@ -2605,7 +2604,7 @@
dentry = lookup_one_len(nodename, parent->dentry, strlen(nodename));
if (IS_ERR(dentry)) {
printk(KERN_INFO
- "Couldn't allocate dentry for %s: %ld\n", nodename,
+ "cgroup: Couldn't allocate dentry for %s: %ld\n", nodename,
PTR_ERR(dentry));
ret = PTR_ERR(dentry);
goto out_release;
diff --git a/kernel/cpu_acct.c b/kernel/cpu_acct.c
deleted file mode 100644
index 731e47e..0000000
--- a/kernel/cpu_acct.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * kernel/cpu_acct.c - CPU accounting cgroup subsystem
- *
- * Copyright (C) Google Inc, 2006
- *
- * Developed by Paul Menage (menage@google.com) and Balbir Singh
- * (balbir@in.ibm.com)
- *
- */
-
-/*
- * Example cgroup subsystem for reporting total CPU usage of tasks in a
- * cgroup, along with percentage load over a time interval
- */
-
-#include <linux/module.h>
-#include <linux/cgroup.h>
-#include <linux/fs.h>
-#include <linux/rcupdate.h>
-
-#include <asm/div64.h>
-
-struct cpuacct {
- struct cgroup_subsys_state css;
- spinlock_t lock;
- /* total time used by this class */
- cputime64_t time;
-
- /* time when next load calculation occurs */
- u64 next_interval_check;
-
- /* time used in current period */
- cputime64_t current_interval_time;
-
- /* time used in last period */
- cputime64_t last_interval_time;
-};
-
-struct cgroup_subsys cpuacct_subsys;
-
-static inline struct cpuacct *cgroup_ca(struct cgroup *cont)
-{
- return container_of(cgroup_subsys_state(cont, cpuacct_subsys_id),
- struct cpuacct, css);
-}
-
-static inline struct cpuacct *task_ca(struct task_struct *task)
-{
- return container_of(task_subsys_state(task, cpuacct_subsys_id),
- struct cpuacct, css);
-}
-
-#define INTERVAL (HZ * 10)
-
-static inline u64 next_interval_boundary(u64 now)
-{
- /* calculate the next interval boundary beyond the
- * current time */
- do_div(now, INTERVAL);
- return (now + 1) * INTERVAL;
-}
-
-static struct cgroup_subsys_state *cpuacct_create(
- struct cgroup_subsys *ss, struct cgroup *cont)
-{
- struct cpuacct *ca = kzalloc(sizeof(*ca), GFP_KERNEL);
-
- if (!ca)
- return ERR_PTR(-ENOMEM);
- spin_lock_init(&ca->lock);
- ca->next_interval_check = next_interval_boundary(get_jiffies_64());
- return &ca->css;
-}
-
-static void cpuacct_destroy(struct cgroup_subsys *ss,
- struct cgroup *cont)
-{
- kfree(cgroup_ca(cont));
-}
-
-/* Lazily update the load calculation if necessary. Called with ca locked */
-static void cpuusage_update(struct cpuacct *ca)
-{
- u64 now = get_jiffies_64();
-
- /* If we're not due for an update, return */
- if (ca->next_interval_check > now)
- return;
-
- if (ca->next_interval_check <= (now - INTERVAL)) {
- /* If it's been more than an interval since the last
- * check, then catch up - the last interval must have
- * been zero load */
- ca->last_interval_time = 0;
- ca->next_interval_check = next_interval_boundary(now);
- } else {
- /* If a steal takes the last interval time negative,
- * then we just ignore it */
- if ((s64)ca->current_interval_time > 0)
- ca->last_interval_time = ca->current_interval_time;
- else
- ca->last_interval_time = 0;
- ca->next_interval_check += INTERVAL;
- }
- ca->current_interval_time = 0;
-}
-
-static u64 cpuusage_read(struct cgroup *cont, struct cftype *cft)
-{
- struct cpuacct *ca = cgroup_ca(cont);
- u64 time;
-
- spin_lock_irq(&ca->lock);
- cpuusage_update(ca);
- time = cputime64_to_jiffies64(ca->time);
- spin_unlock_irq(&ca->lock);
-
- /* Convert 64-bit jiffies to seconds */
- time *= 1000;
- do_div(time, HZ);
- return time;
-}
-
-static u64 load_read(struct cgroup *cont, struct cftype *cft)
-{
- struct cpuacct *ca = cgroup_ca(cont);
- u64 time;
-
- /* Find the time used in the previous interval */
- spin_lock_irq(&ca->lock);
- cpuusage_update(ca);
- time = cputime64_to_jiffies64(ca->last_interval_time);
- spin_unlock_irq(&ca->lock);
-
- /* Convert time to a percentage, to give the load in the
- * previous period */
- time *= 100;
- do_div(time, INTERVAL);
-
- return time;
-}
-
-static struct cftype files[] = {
- {
- .name = "usage",
- .read_uint = cpuusage_read,
- },
- {
- .name = "load",
- .read_uint = load_read,
- }
-};
-
-static int cpuacct_populate(struct cgroup_subsys *ss, struct cgroup *cont)
-{
- return cgroup_add_files(cont, ss, files, ARRAY_SIZE(files));
-}
-
-void cpuacct_charge(struct task_struct *task, cputime_t cputime)
-{
-
- struct cpuacct *ca;
- unsigned long flags;
-
- if (!cpuacct_subsys.active)
- return;
- rcu_read_lock();
- ca = task_ca(task);
- if (ca) {
- spin_lock_irqsave(&ca->lock, flags);
- cpuusage_update(ca);
- ca->time = cputime64_add(ca->time, cputime);
- ca->current_interval_time =
- cputime64_add(ca->current_interval_time, cputime);
- spin_unlock_irqrestore(&ca->lock, flags);
- }
- rcu_read_unlock();
-}
-
-struct cgroup_subsys cpuacct_subsys = {
- .name = "cpuacct",
- .create = cpuacct_create,
- .destroy = cpuacct_destroy,
- .populate = cpuacct_populate,
- .subsys_id = cpuacct_subsys_id,
-};
diff --git a/kernel/exit.c b/kernel/exit.c
index f1aec27..cd0f1d4 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1386,8 +1386,7 @@
int why = (p->ptrace & PT_PTRACED) ? CLD_TRAPPED : CLD_STOPPED;
exit_code = p->exit_code;
- if (unlikely(!exit_code) ||
- unlikely(p->state & TASK_TRACED))
+ if (unlikely(!exit_code) || unlikely(p->exit_state))
goto bail_ref;
return wait_noreap_copyout(p, pid, uid,
why, (exit_code << 8) | 0x7f,
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index e391cbb..dc335ad 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -178,9 +178,11 @@
*/
if (desc->chip->ack)
desc->chip->ack(irq);
- action_ret = handle_IRQ_event(irq, desc->action);
- if (!noirqdebug)
- note_interrupt(irq, desc, action_ret);
+ if (likely(!(desc->status & IRQ_DISABLED))) {
+ action_ret = handle_IRQ_event(irq, desc->action);
+ if (!noirqdebug)
+ note_interrupt(irq, desc, action_ret);
+ }
desc->chip->end(irq);
return 1;
}
diff --git a/kernel/marker.c b/kernel/marker.c
index ccb48d9..5323cfa 100644
--- a/kernel/marker.c
+++ b/kernel/marker.c
@@ -28,7 +28,7 @@
extern struct marker __stop___markers[];
/*
- * module_mutex nests inside markers_mutex. Markers mutex protects the builtin
+ * markers_mutex nests inside module_mutex. Markers mutex protects the builtin
* and module markers, the hash table and deferred_sync.
*/
static DEFINE_MUTEX(markers_mutex);
@@ -257,7 +257,6 @@
* @refcount: number of references left to the given probe_module (out)
*
* Updates the probe callback corresponding to a range of markers.
- * Must be called with markers_mutex held.
*/
void marker_update_probe_range(struct marker *begin,
struct marker *end, struct module *probe_module,
@@ -266,6 +265,7 @@
struct marker *iter;
struct marker_entry *mark_entry;
+ mutex_lock(&markers_mutex);
for (iter = begin; iter < end; iter++) {
mark_entry = get_marker(iter->name);
if (mark_entry && mark_entry->refcount) {
@@ -281,6 +281,7 @@
disable_marker(iter);
}
}
+ mutex_unlock(&markers_mutex);
}
/*
@@ -293,7 +294,6 @@
{
int refcount = 0;
- mutex_lock(&markers_mutex);
/* Core kernel markers */
marker_update_probe_range(__start___markers,
__stop___markers, probe_module, &refcount);
@@ -303,7 +303,6 @@
synchronize_sched();
deferred_sync = 0;
}
- mutex_unlock(&markers_mutex);
}
/**
@@ -320,7 +319,7 @@
marker_probe_func *probe, void *private)
{
struct marker_entry *entry;
- int ret = 0, need_update = 0;
+ int ret = 0;
mutex_lock(&markers_mutex);
entry = get_marker(name);
@@ -335,11 +334,11 @@
ret = add_marker(name, format, probe, private);
if (ret)
goto end;
- need_update = 1;
+ mutex_unlock(&markers_mutex);
+ marker_update_probes(NULL);
+ return ret;
end:
mutex_unlock(&markers_mutex);
- if (need_update)
- marker_update_probes(NULL);
return ret;
}
EXPORT_SYMBOL_GPL(marker_probe_register);
@@ -355,7 +354,6 @@
struct module *probe_module;
struct marker_entry *entry;
void *private;
- int need_update = 0;
mutex_lock(&markers_mutex);
entry = get_marker(name);
@@ -368,11 +366,11 @@
probe_module = __module_text_address((unsigned long)entry->probe);
private = remove_marker(name);
deferred_sync = 1;
- need_update = 1;
+ mutex_unlock(&markers_mutex);
+ marker_update_probes(probe_module);
+ return private;
end:
mutex_unlock(&markers_mutex);
- if (need_update)
- marker_update_probes(probe_module);
return private;
}
EXPORT_SYMBOL_GPL(marker_probe_unregister);
@@ -392,7 +390,6 @@
struct marker_entry *entry;
int found = 0;
unsigned int i;
- int need_update = 0;
mutex_lock(&markers_mutex);
for (i = 0; i < MARKER_TABLE_SIZE; i++) {
@@ -414,11 +411,11 @@
probe_module = __module_text_address((unsigned long)entry->probe);
private = remove_marker(entry->name);
deferred_sync = 1;
- need_update = 1;
+ mutex_unlock(&markers_mutex);
+ marker_update_probes(probe_module);
+ return private;
end:
mutex_unlock(&markers_mutex);
- if (need_update)
- marker_update_probes(probe_module);
return private;
}
EXPORT_SYMBOL_GPL(marker_probe_unregister_private_data);
@@ -434,7 +431,7 @@
int marker_arm(const char *name)
{
struct marker_entry *entry;
- int ret = 0, need_update = 0;
+ int ret = 0;
mutex_lock(&markers_mutex);
entry = get_marker(name);
@@ -447,11 +444,9 @@
*/
if (entry->refcount++)
goto end;
- need_update = 1;
end:
mutex_unlock(&markers_mutex);
- if (need_update)
- marker_update_probes(NULL);
+ marker_update_probes(NULL);
return ret;
}
EXPORT_SYMBOL_GPL(marker_arm);
@@ -467,7 +462,7 @@
int marker_disarm(const char *name)
{
struct marker_entry *entry;
- int ret = 0, need_update = 0;
+ int ret = 0;
mutex_lock(&markers_mutex);
entry = get_marker(name);
@@ -486,11 +481,9 @@
ret = -EPERM;
goto end;
}
- need_update = 1;
end:
mutex_unlock(&markers_mutex);
- if (need_update)
- marker_update_probes(NULL);
+ marker_update_probes(NULL);
return ret;
}
EXPORT_SYMBOL_GPL(marker_disarm);
diff --git a/kernel/params.c b/kernel/params.c
index 16f269e..2a4c514 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -592,19 +592,16 @@
for (i=0; i < __stop___param - __start___param; i++) {
char *dot;
- size_t kplen;
+ size_t max_name_len;
kp = &__start___param[i];
- kplen = strlen(kp->name);
+ max_name_len =
+ min_t(size_t, MAX_KBUILD_MODNAME, strlen(kp->name));
- /* We do not handle args without periods. */
- if (kplen > MAX_KBUILD_MODNAME) {
- DEBUGP("kernel parameter name is too long: %s\n", kp->name);
- continue;
- }
- dot = memchr(kp->name, '.', kplen);
+ dot = memchr(kp->name, '.', max_name_len);
if (!dot) {
- DEBUGP("couldn't find period in %s\n", kp->name);
+ DEBUGP("couldn't find period in first %d characters "
+ "of %s\n", MAX_KBUILD_MODNAME, kp->name);
continue;
}
name_len = dot - kp->name;
diff --git a/kernel/pid.c b/kernel/pid.c
index d1db36b..f815455 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -537,6 +537,7 @@
return NULL;
}
+#ifdef CONFIG_PID_NS
static struct pid_namespace *create_pid_namespace(int level)
{
struct pid_namespace *ns;
@@ -621,6 +622,7 @@
if (parent != NULL)
put_pid_ns(parent);
}
+#endif /* CONFIG_PID_NS */
void zap_pid_ns_processes(struct pid_namespace *pid_ns)
{
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 8b15f77..05b6479 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -456,7 +456,17 @@
int error;
unsigned int flags;
- mutex_lock(&pm_mutex);
+ /*
+ * name_to_dev_t() below takes a sysfs buffer mutex when sysfs
+ * is configured into the kernel. Since the regular hibernate
+ * trigger path is via sysfs which takes a buffer mutex before
+ * calling hibernate functions (which take pm_mutex) this can
+ * cause lockdep to complain about a possible ABBA deadlock
+ * which cannot happen since we're in the boot code here and
+ * sysfs can't be invoked yet. Therefore, we use a subclass
+ * here to avoid lockdep complaining.
+ */
+ mutex_lock_nested(&pm_mutex, SINGLE_DEPTH_NESTING);
if (!swsusp_resume_device) {
if (!strlen(resume_file)) {
mutex_unlock(&pm_mutex);
diff --git a/kernel/resource.c b/kernel/resource.c
index a358142..2eb553d 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -277,7 +277,7 @@
int ret = -1;
res.start = (u64) start_pfn << PAGE_SHIFT;
res.end = ((u64)(start_pfn + nr_pages) << PAGE_SHIFT) - 1;
- res.flags = IORESOURCE_MEM;
+ res.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
orig_end = res.end;
while ((res.start < res.end) && (find_next_system_ram(&res) >= 0)) {
pfn = (unsigned long)(res.start >> PAGE_SHIFT);
diff --git a/kernel/sched.c b/kernel/sched.c
index b18f231..38933ca 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -52,7 +52,6 @@
#include <linux/cpu.h>
#include <linux/cpuset.h>
#include <linux/percpu.h>
-#include <linux/cpu_acct.h>
#include <linux/kthread.h>
#include <linux/seq_file.h>
#include <linux/sysctl.h>
@@ -217,15 +216,15 @@
}
/* Change a task's cfs_rq and parent entity if it moves across CPUs/groups */
-static inline void set_task_cfs_rq(struct task_struct *p)
+static inline void set_task_cfs_rq(struct task_struct *p, unsigned int cpu)
{
- p->se.cfs_rq = task_group(p)->cfs_rq[task_cpu(p)];
- p->se.parent = task_group(p)->se[task_cpu(p)];
+ p->se.cfs_rq = task_group(p)->cfs_rq[cpu];
+ p->se.parent = task_group(p)->se[cpu];
}
#else
-static inline void set_task_cfs_rq(struct task_struct *p) { }
+static inline void set_task_cfs_rq(struct task_struct *p, unsigned int cpu) { }
#endif /* CONFIG_FAIR_GROUP_SCHED */
@@ -456,18 +455,18 @@
*/
enum {
SCHED_FEAT_NEW_FAIR_SLEEPERS = 1,
- SCHED_FEAT_START_DEBIT = 2,
- SCHED_FEAT_TREE_AVG = 4,
- SCHED_FEAT_APPROX_AVG = 8,
- SCHED_FEAT_WAKEUP_PREEMPT = 16,
+ SCHED_FEAT_WAKEUP_PREEMPT = 2,
+ SCHED_FEAT_START_DEBIT = 4,
+ SCHED_FEAT_TREE_AVG = 8,
+ SCHED_FEAT_APPROX_AVG = 16,
};
const_debug unsigned int sysctl_sched_features =
SCHED_FEAT_NEW_FAIR_SLEEPERS * 1 |
+ SCHED_FEAT_WAKEUP_PREEMPT * 1 |
SCHED_FEAT_START_DEBIT * 1 |
SCHED_FEAT_TREE_AVG * 0 |
- SCHED_FEAT_APPROX_AVG * 0 |
- SCHED_FEAT_WAKEUP_PREEMPT * 1;
+ SCHED_FEAT_APPROX_AVG * 0;
#define sched_feat(x) (sysctl_sched_features & SCHED_FEAT_##x)
@@ -1023,10 +1022,16 @@
static inline void __set_task_cpu(struct task_struct *p, unsigned int cpu)
{
+ set_task_cfs_rq(p, cpu);
#ifdef CONFIG_SMP
+ /*
+ * After ->cpu is set up to a new value, task_rq_lock(p, ...) can be
+ * successfuly executed on another CPU. We must ensure that updates of
+ * per-task data have been completed by this moment.
+ */
+ smp_wmb();
task_thread_info(p)->cpu = cpu;
#endif
- set_task_cfs_rq(p);
}
#ifdef CONFIG_SMP
@@ -3338,13 +3343,9 @@
{
struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
cputime64_t tmp;
- struct rq *rq = this_rq();
p->utime = cputime_add(p->utime, cputime);
- if (p != rq->idle)
- cpuacct_charge(p, cputime);
-
/* Add user time to cpustat. */
tmp = cputime_to_cputime64(cputime);
if (TASK_NICE(p) > 0)
@@ -3395,10 +3396,8 @@
struct rq *rq = this_rq();
cputime64_t tmp;
- if (p->flags & PF_VCPU) {
- account_guest_time(p, cputime);
- return;
- }
+ if ((p->flags & PF_VCPU) && (irq_count() - hardirq_offset == 0))
+ return account_guest_time(p, cputime);
p->stime = cputime_add(p->stime, cputime);
@@ -3408,10 +3407,9 @@
cpustat->irq = cputime64_add(cpustat->irq, tmp);
else if (softirq_count())
cpustat->softirq = cputime64_add(cpustat->softirq, tmp);
- else if (p != rq->idle) {
+ else if (p != rq->idle)
cpustat->system = cputime64_add(cpustat->system, tmp);
- cpuacct_charge(p, cputime);
- } else if (atomic_read(&rq->nr_iowait) > 0)
+ else if (atomic_read(&rq->nr_iowait) > 0)
cpustat->iowait = cputime64_add(cpustat->iowait, tmp);
else
cpustat->idle = cputime64_add(cpustat->idle, tmp);
@@ -3447,10 +3445,8 @@
cpustat->iowait = cputime64_add(cpustat->iowait, tmp);
else
cpustat->idle = cputime64_add(cpustat->idle, tmp);
- } else {
+ } else
cpustat->steal = cputime64_add(cpustat->steal, tmp);
- cpuacct_charge(p, -tmp);
- }
}
/*
@@ -5286,23 +5282,9 @@
}
/*
- * activate_idle_task - move idle task to the _front_ of runqueue.
- */
-static void activate_idle_task(struct task_struct *p, struct rq *rq)
-{
- update_rq_clock(rq);
-
- if (p->state == TASK_UNINTERRUPTIBLE)
- rq->nr_uninterruptible--;
-
- enqueue_task(rq, p, 0);
- inc_nr_running(p, rq);
-}
-
-/*
* Schedules idle task to be the next runnable task on current CPU.
- * It does so by boosting its priority to highest possible and adding it to
- * the _front_ of the runqueue. Used by CPU offline code.
+ * It does so by boosting its priority to highest possible.
+ * Used by CPU offline code.
*/
void sched_idle_next(void)
{
@@ -5322,8 +5304,8 @@
__setscheduler(rq, p, SCHED_FIFO, MAX_RT_PRIO-1);
- /* Add idle task to the _front_ of its priority queue: */
- activate_idle_task(p, rq);
+ update_rq_clock(rq);
+ activate_task(rq, p, 0);
spin_unlock_irqrestore(&rq->lock, flags);
}
@@ -7097,8 +7079,10 @@
rq = task_rq_lock(tsk, &flags);
- if (tsk->sched_class != &fair_sched_class)
+ if (tsk->sched_class != &fair_sched_class) {
+ set_task_cfs_rq(tsk, task_cpu(tsk));
goto done;
+ }
update_rq_clock(rq);
@@ -7111,7 +7095,7 @@
tsk->sched_class->put_prev_task(rq, tsk);
}
- set_task_cfs_rq(tsk);
+ set_task_cfs_rq(tsk, task_cpu(tsk));
if (on_rq) {
if (unlikely(running))
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index d3c0307..ee00da2 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -43,7 +43,7 @@
/*
* is kept at sysctl_sched_latency / sysctl_sched_min_granularity
*/
-unsigned int sched_nr_latency = 20;
+static unsigned int sched_nr_latency = 20;
/*
* After fork, child runs first. (default) If set to 0 then
diff --git a/kernel/sys.c b/kernel/sys.c
index 304b541..d1fe71e 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1750,7 +1750,7 @@
}
asmlinkage long sys_getcpu(unsigned __user *cpup, unsigned __user *nodep,
- struct getcpu_cache __user *cache)
+ struct getcpu_cache __user *unused)
{
int err = 0;
int cpu = raw_smp_processor_id();
@@ -1758,24 +1758,6 @@
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->blob[0]);
- get_user(t1, &cache->blob[1]);
- t0++;
- t1++;
- put_user(t0, &cache->blob[0]);
- put_user(t1, &cache->blob[1]);
- }
return err ? -EFAULT : 0;
}
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 3a1744f..0deed82 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -2620,6 +2620,10 @@
int name[CTL_MAXNAME];
int i;
+ /* Check args->nlen. */
+ if (args->nlen < 0 || args->nlen > CTL_MAXNAME)
+ return -ENOTDIR;
+
/* Read in the sysctl name for better debug message logging */
for (i = 0; i < args->nlen; i++)
if (get_user(name[i], args->name + i))
diff --git a/kernel/sysctl_check.c b/kernel/sysctl_check.c
index 5a2f2b2..4abc6d2 100644
--- a/kernel/sysctl_check.c
+++ b/kernel/sysctl_check.c
@@ -738,7 +738,7 @@
{ NET_ROSE, "rose", trans_net_rose_table },
{ NET_IPV6, "ipv6", trans_net_ipv6_table },
{ NET_X25, "x25", trans_net_x25_table },
- { NET_TR, "tr", trans_net_tr_table },
+ { NET_TR, "token-ring", trans_net_tr_table },
{ NET_DECNET, "decnet", trans_net_decnet_table },
/* NET_ECONET not used */
{ NET_SCTP, "sctp", trans_net_sctp_table },
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 354e74b..07e86a8 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -398,31 +398,31 @@
fd = nla_get_u32(info->attrs[CGROUPSTATS_CMD_ATTR_FD]);
file = fget_light(fd, &fput_needed);
- if (file) {
- size = nla_total_size(sizeof(struct cgroupstats));
+ if (!file)
+ return 0;
- rc = prepare_reply(info, CGROUPSTATS_CMD_NEW, &rep_skb,
- size);
- if (rc < 0)
- goto err;
+ size = nla_total_size(sizeof(struct cgroupstats));
- na = nla_reserve(rep_skb, CGROUPSTATS_TYPE_CGROUP_STATS,
- sizeof(struct cgroupstats));
- stats = nla_data(na);
- memset(stats, 0, sizeof(*stats));
+ rc = prepare_reply(info, CGROUPSTATS_CMD_NEW, &rep_skb,
+ size);
+ if (rc < 0)
+ goto err;
- rc = cgroupstats_build(stats, file->f_dentry);
- if (rc < 0)
- goto err;
+ na = nla_reserve(rep_skb, CGROUPSTATS_TYPE_CGROUP_STATS,
+ sizeof(struct cgroupstats));
+ stats = nla_data(na);
+ memset(stats, 0, sizeof(*stats));
- fput_light(file, fput_needed);
- return send_reply(rep_skb, info->snd_pid);
+ rc = cgroupstats_build(stats, file->f_dentry);
+ if (rc < 0) {
+ nlmsg_free(rep_skb);
+ goto err;
}
+ rc = send_reply(rep_skb, info->snd_pid);
+
err:
- if (file)
- fput_light(file, fput_needed);
- nlmsg_free(rep_skb);
+ fput_light(file, fput_needed);
return rc;
}
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index de6a2d6..14a2ecf 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -205,7 +205,7 @@
return;
getnstimeofday(&now);
- if (abs(xtime.tv_nsec - (NSEC_PER_SEC / 2)) <= tick_nsec / 2)
+ if (abs(now.tv_nsec - (NSEC_PER_SEC / 2)) <= tick_nsec / 2)
fail = update_persistent_clock(now);
next.tv_nsec = (NSEC_PER_SEC / 2) - now.tv_nsec;
diff --git a/lib/Makefile b/lib/Makefile
index 3a0983b..b6793ed 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -4,7 +4,7 @@
lib-y := ctype.o string.o vsprintf.o cmdline.o \
rbtree.o radix-tree.o dump_stack.o \
- idr.o int_sqrt.o bitmap.o extable.o prio_tree.o \
+ idr.o int_sqrt.o extable.o prio_tree.o \
sha1.o irq_regs.o reciprocal_div.o argv_split.o \
proportions.o prio_heap.o
@@ -14,7 +14,7 @@
lib-y += kobject.o kref.o klist.o
obj-y += div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
- bust_spinlocks.o hexdump.o kasprintf.o
+ bust_spinlocks.o hexdump.o kasprintf.o bitmap.o
ifeq ($(CONFIG_DEBUG_KOBJECT),y)
CFLAGS_kobject.o += -DDEBUG
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 8b809ec..6121b57 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -116,7 +116,9 @@
static void free_huge_page(struct page *page)
{
int nid = page_to_nid(page);
+ struct address_space *mapping;
+ mapping = (struct address_space *) page_private(page);
BUG_ON(page_count(page));
INIT_LIST_HEAD(&page->lru);
@@ -129,6 +131,9 @@
enqueue_huge_page(page);
}
spin_unlock(&hugetlb_lock);
+ if (mapping)
+ hugetlb_put_quota(mapping, 1);
+ set_page_private(page, 0);
}
/*
@@ -323,7 +328,7 @@
* allocated to satisfy the reservation must be explicitly freed if they were
* never used.
*/
-void return_unused_surplus_pages(unsigned long unused_resv_pages)
+static void return_unused_surplus_pages(unsigned long unused_resv_pages)
{
static int nid = -1;
struct page *page;
@@ -353,35 +358,50 @@
}
}
+
+static struct page *alloc_huge_page_shared(struct vm_area_struct *vma,
+ unsigned long addr)
+{
+ struct page *page;
+
+ spin_lock(&hugetlb_lock);
+ page = dequeue_huge_page(vma, addr);
+ spin_unlock(&hugetlb_lock);
+ return page ? page : ERR_PTR(-VM_FAULT_OOM);
+}
+
+static struct page *alloc_huge_page_private(struct vm_area_struct *vma,
+ unsigned long addr)
+{
+ struct page *page = NULL;
+
+ if (hugetlb_get_quota(vma->vm_file->f_mapping, 1))
+ return ERR_PTR(-VM_FAULT_SIGBUS);
+
+ spin_lock(&hugetlb_lock);
+ if (free_huge_pages > resv_huge_pages)
+ page = dequeue_huge_page(vma, addr);
+ spin_unlock(&hugetlb_lock);
+ if (!page)
+ page = alloc_buddy_huge_page(vma, addr);
+ return page ? page : ERR_PTR(-VM_FAULT_OOM);
+}
+
static struct page *alloc_huge_page(struct vm_area_struct *vma,
unsigned long addr)
{
- struct page *page = NULL;
- int use_reserved_page = vma->vm_flags & VM_MAYSHARE;
+ struct page *page;
+ struct address_space *mapping = vma->vm_file->f_mapping;
- spin_lock(&hugetlb_lock);
- if (!use_reserved_page && (free_huge_pages <= resv_huge_pages))
- goto fail;
+ if (vma->vm_flags & VM_MAYSHARE)
+ page = alloc_huge_page_shared(vma, addr);
+ else
+ page = alloc_huge_page_private(vma, addr);
- page = dequeue_huge_page(vma, addr);
- if (!page)
- goto fail;
-
- spin_unlock(&hugetlb_lock);
- set_page_refcounted(page);
- return page;
-
-fail:
- spin_unlock(&hugetlb_lock);
-
- /*
- * Private mappings do not use reserved huge pages so the allocation
- * may have failed due to an undersized hugetlb pool. Try to grab a
- * surplus huge page from the buddy allocator.
- */
- if (!use_reserved_page)
- page = alloc_buddy_huge_page(vma, addr);
-
+ if (!IS_ERR(page)) {
+ set_page_refcounted(page);
+ set_page_private(page, (unsigned long) mapping);
+ }
return page;
}
@@ -726,9 +746,9 @@
page_cache_get(old_page);
new_page = alloc_huge_page(vma, address);
- if (!new_page) {
+ if (IS_ERR(new_page)) {
page_cache_release(old_page);
- return VM_FAULT_OOM;
+ return -PTR_ERR(new_page);
}
spin_unlock(&mm->page_table_lock);
@@ -772,27 +792,28 @@
size = i_size_read(mapping->host) >> HPAGE_SHIFT;
if (idx >= size)
goto out;
- if (hugetlb_get_quota(mapping))
- goto out;
page = alloc_huge_page(vma, address);
- if (!page) {
- hugetlb_put_quota(mapping);
- ret = VM_FAULT_OOM;
+ if (IS_ERR(page)) {
+ ret = -PTR_ERR(page);
goto out;
}
clear_huge_page(page, address);
if (vma->vm_flags & VM_SHARED) {
int err;
+ struct inode *inode = mapping->host;
err = add_to_page_cache(page, mapping, idx, GFP_KERNEL);
if (err) {
put_page(page);
- hugetlb_put_quota(mapping);
if (err == -EEXIST)
goto retry;
goto out;
}
+
+ spin_lock(&inode->i_lock);
+ inode->i_blocks += BLOCKS_PER_HUGEPAGE;
+ spin_unlock(&inode->i_lock);
} else
lock_page(page);
}
@@ -822,7 +843,6 @@
backout:
spin_unlock(&mm->page_table_lock);
- hugetlb_put_quota(mapping);
unlock_page(page);
put_page(page);
goto out;
@@ -868,7 +888,8 @@
int follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma,
struct page **pages, struct vm_area_struct **vmas,
- unsigned long *position, int *length, int i)
+ unsigned long *position, int *length, int i,
+ int write)
{
unsigned long pfn_offset;
unsigned long vaddr = *position;
@@ -890,7 +911,7 @@
int ret;
spin_unlock(&mm->page_table_lock);
- ret = hugetlb_fault(mm, vma, vaddr, 0);
+ ret = hugetlb_fault(mm, vma, vaddr, write);
spin_lock(&mm->page_table_lock);
if (!(ret & VM_FAULT_ERROR))
continue;
@@ -1132,6 +1153,8 @@
if (chg < 0)
return chg;
+ if (hugetlb_get_quota(inode->i_mapping, chg))
+ return -ENOSPC;
ret = hugetlb_acct_memory(chg);
if (ret < 0)
return ret;
@@ -1142,5 +1165,11 @@
void hugetlb_unreserve_pages(struct inode *inode, long offset, long freed)
{
long chg = region_truncate(&inode->i_mapping->private_list, offset);
- hugetlb_acct_memory(freed - chg);
+
+ spin_lock(&inode->i_lock);
+ inode->i_blocks -= BLOCKS_PER_HUGEPAGE * freed;
+ spin_unlock(&inode->i_lock);
+
+ hugetlb_put_quota(inode->i_mapping, (chg - freed));
+ hugetlb_acct_memory(-(chg - freed));
}
diff --git a/mm/memory.c b/mm/memory.c
index 9791e47..4bf0b6d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1036,7 +1036,7 @@
if (is_vm_hugetlb_page(vma)) {
i = follow_hugetlb_page(mm, vma, pages, vmas,
- &start, &len, i);
+ &start, &len, i, write);
continue;
}
@@ -2084,9 +2084,9 @@
count_vm_event(PGMAJFAULT);
}
- delayacct_clear_flag(DELAYACCT_PF_SWAPIN);
mark_page_accessed(page);
lock_page(page);
+ delayacct_clear_flag(DELAYACCT_PF_SWAPIN);
/*
* Back out if somebody else already faulted in this pte.
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 3a47871..9512a54 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -39,7 +39,7 @@
res->name = "System RAM";
res->start = start;
res->end = start + size - 1;
- res->flags = IORESOURCE_MEM;
+ res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
if (request_resource(&iomem_resource, res) < 0) {
printk("System RAM resource %llx - %llx cannot be added\n",
(unsigned long long)res->start, (unsigned long long)res->end);
@@ -574,8 +574,8 @@
/* Ok, all of our target is islaoted.
We cannot do rollback at this point. */
offline_isolated_pages(start_pfn, end_pfn);
- /* reset pagetype flags */
- start_isolate_page_range(start_pfn, end_pfn);
+ /* reset pagetype flags and makes migrate type to be MOVABLE */
+ undo_isolate_page_range(start_pfn, end_pfn);
/* removal success */
zone->present_pages -= offlined_pages;
zone->zone_pgdat->node_present_pages -= offlined_pages;
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index c1592a9..83c69f8 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -722,12 +722,29 @@
}
+/*
+ * Allocate a new page for page migration based on vma policy.
+ * Start assuming that page is mapped by vma pointed to by @private.
+ * Search forward from there, if not. N.B., this assumes that the
+ * list of pages handed to migrate_pages()--which is how we get here--
+ * is in virtual address order.
+ */
static struct page *new_vma_page(struct page *page, unsigned long private, int **x)
{
struct vm_area_struct *vma = (struct vm_area_struct *)private;
+ unsigned long uninitialized_var(address);
- return alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma,
- page_address_in_vma(page, vma));
+ while (vma) {
+ address = page_address_in_vma(page, vma);
+ if (address != -EFAULT)
+ break;
+ vma = vma->vm_next;
+ }
+
+ /*
+ * if !vma, alloc_page_vma() will use task or system default policy
+ */
+ return alloc_page_vma(GFP_HIGHUSER_MOVABLE, vma, address);
}
#else
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 838a5e3..d55cfca 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -297,20 +297,12 @@
{
int background_ratio; /* Percentages */
int dirty_ratio;
- int unmapped_ratio;
long background;
long dirty;
unsigned long available_memory = determine_dirtyable_memory();
struct task_struct *tsk;
- unmapped_ratio = 100 - ((global_page_state(NR_FILE_MAPPED) +
- global_page_state(NR_ANON_PAGES)) * 100) /
- available_memory;
-
dirty_ratio = vm_dirty_ratio;
- if (dirty_ratio > unmapped_ratio / 2)
- dirty_ratio = unmapped_ratio / 2;
-
if (dirty_ratio < 5)
dirty_ratio = 5;
@@ -355,8 +347,8 @@
*/
static void balance_dirty_pages(struct address_space *mapping)
{
- long bdi_nr_reclaimable;
- long bdi_nr_writeback;
+ long nr_reclaimable, bdi_nr_reclaimable;
+ long nr_writeback, bdi_nr_writeback;
long background_thresh;
long dirty_thresh;
long bdi_thresh;
@@ -376,11 +368,26 @@
get_dirty_limits(&background_thresh, &dirty_thresh,
&bdi_thresh, bdi);
+
+ nr_reclaimable = global_page_state(NR_FILE_DIRTY) +
+ global_page_state(NR_UNSTABLE_NFS);
+ nr_writeback = global_page_state(NR_WRITEBACK);
+
bdi_nr_reclaimable = bdi_stat(bdi, BDI_RECLAIMABLE);
bdi_nr_writeback = bdi_stat(bdi, BDI_WRITEBACK);
+
if (bdi_nr_reclaimable + bdi_nr_writeback <= bdi_thresh)
break;
+ /*
+ * Throttle it only when the background writeback cannot
+ * catch-up. This avoids (excessively) small writeouts
+ * when the bdi limits are ramping up.
+ */
+ if (nr_reclaimable + nr_writeback <
+ (background_thresh + dirty_thresh) / 2)
+ break;
+
if (!bdi->dirty_exceeded)
bdi->dirty_exceeded = 1;
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index 8f92a29..3444b58 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -55,7 +55,7 @@
return 0;
undo:
for (pfn = start_pfn;
- pfn <= undo_pfn;
+ pfn < undo_pfn;
pfn += pageblock_nr_pages)
unset_migratetype_isolate(pfn_to_page(pfn));
@@ -76,7 +76,7 @@
pfn < end_pfn;
pfn += pageblock_nr_pages) {
page = __first_valid_page(pfn, pageblock_nr_pages);
- if (!page || get_pageblock_flags(page) != MIGRATE_ISOLATE)
+ if (!page || get_pageblock_migratetype(page) != MIGRATE_ISOLATE)
continue;
unset_migratetype_isolate(page);
}
@@ -126,7 +126,7 @@
*/
for (pfn = start_pfn; pfn < end_pfn; pfn += pageblock_nr_pages) {
page = __first_valid_page(pfn, pageblock_nr_pages);
- if (page && get_pageblock_flags(page) != MIGRATE_ISOLATE)
+ if (page && get_pageblock_migratetype(page) != MIGRATE_ISOLATE)
break;
}
if (pfn < end_pfn)
diff --git a/mm/rmap.c b/mm/rmap.c
index 8990f90..dc3be5f 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -183,7 +183,9 @@
}
/*
- * At what user virtual address is page expected in vma?
+ * At what user virtual address is page expected in @vma?
+ * Returns virtual address or -EFAULT if page's index/offset is not
+ * within the range mapped the @vma.
*/
static inline unsigned long
vma_address(struct page *page, struct vm_area_struct *vma)
@@ -193,8 +195,7 @@
address = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
if (unlikely(address < vma->vm_start || address >= vma->vm_end)) {
- /* page should be within any vma from prio_tree_next */
- BUG_ON(!PageAnon(page));
+ /* page should be within @vma mapping range */
return -EFAULT;
}
return address;
diff --git a/mm/slab.c b/mm/slab.c
index cfa6be4..c31cd36 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1043,7 +1043,7 @@
}
ac_ptr[i] = alloc_arraycache(node, limit, 0xbaadf00d);
if (!ac_ptr[i]) {
- for (i--; i <= 0; i--)
+ for (i--; i >= 0; i--)
kfree(ac_ptr[i]);
kfree(ac_ptr);
return NULL;
diff --git a/mm/slob.c b/mm/slob.c
index 5bc2ceb..08a9bd9 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -321,7 +321,8 @@
/* Improve fragment distribution and reduce our average
* search time by starting our next search here. (see
* Knuth vol 1, sec 2.5, pg 449) */
- if (free_slob_pages.next != prev->next)
+ if (prev != free_slob_pages.prev &&
+ free_slob_pages.next != prev->next)
list_move_tail(&free_slob_pages, prev->next);
break;
}
diff --git a/mm/util.c b/mm/util.c
index 5f64026..8f18683 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -95,8 +95,8 @@
return (void *)p;
ret = kmalloc_track_caller(new_size, flags);
- if (ret) {
- memcpy(ret, p, min(new_size, ks));
+ if (ret && p) {
+ memcpy(ret, p, ks);
kfree(p);
}
return ret;
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 4651bf1..e8d846f 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -803,7 +803,7 @@
sysctl_stat_interval);
}
-static void __devinit start_cpu_timer(int cpu)
+static void __cpuinit start_cpu_timer(int cpu)
{
struct delayed_work *vmstat_work = &per_cpu(vmstat_work, cpu);
diff --git a/net/core/dev.c b/net/core/dev.c
index dd40b35..86d6261 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1171,6 +1171,8 @@
nb->notifier_call(nb, NETDEV_UNREGISTER, dev);
}
}
+
+ raw_notifier_chain_unregister(&netdev_chain, nb);
goto unlock;
}
diff --git a/net/core/request_sock.c b/net/core/request_sock.c
index 5f0818d..45aed75 100644
--- a/net/core/request_sock.c
+++ b/net/core/request_sock.c
@@ -71,6 +71,41 @@
EXPORT_SYMBOL(reqsk_queue_alloc);
+void __reqsk_queue_destroy(struct request_sock_queue *queue)
+{
+ struct listen_sock *lopt;
+ size_t lopt_size;
+
+ /*
+ * this is an error recovery path only
+ * no locking needed and the lopt is not NULL
+ */
+
+ lopt = queue->listen_opt;
+ lopt_size = sizeof(struct listen_sock) +
+ lopt->nr_table_entries * sizeof(struct request_sock *);
+
+ if (lopt_size > PAGE_SIZE)
+ vfree(lopt);
+ else
+ kfree(lopt);
+}
+
+EXPORT_SYMBOL(__reqsk_queue_destroy);
+
+static inline struct listen_sock *reqsk_queue_yank_listen_sk(
+ struct request_sock_queue *queue)
+{
+ struct listen_sock *lopt;
+
+ write_lock_bh(&queue->syn_wait_lock);
+ lopt = queue->listen_opt;
+ queue->listen_opt = NULL;
+ write_unlock_bh(&queue->syn_wait_lock);
+
+ return lopt;
+}
+
void reqsk_queue_destroy(struct request_sock_queue *queue)
{
/* make all the listen_opt local to us */
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 4565183..1bff9ed 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -578,6 +578,9 @@
i = (i + 1) & rt_hash_mask;
rthp = &rt_hash_table[i].chain;
+ if (need_resched())
+ cond_resched();
+
if (*rthp == NULL)
continue;
spin_lock_bh(rt_hash_lock_addr(i));
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 20c9440..0f0c1c9 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1269,6 +1269,9 @@
if (before(TCP_SKB_CB(ack_skb)->ack_seq, prior_snd_una - tp->max_window))
return 0;
+ if (!tp->packets_out)
+ goto out;
+
/* SACK fastpath:
* if the only SACK change is the increase of the end_seq of
* the first block then only apply that SACK block
@@ -1515,6 +1518,8 @@
(!tp->frto_highmark || after(tp->snd_una, tp->frto_highmark)))
tcp_update_reordering(sk, tp->fackets_out - reord, 0);
+out:
+
#if FASTRETRANS_DEBUG > 0
BUG_TRAP((int)tp->sacked_out >= 0);
BUG_TRAP((int)tp->lost_out >= 0);
@@ -1669,6 +1674,9 @@
}
tcp_verify_left_out(tp);
+ /* Too bad if TCP was application limited */
+ tp->snd_cwnd = min(tp->snd_cwnd, tcp_packets_in_flight(tp) + 1);
+
/* Earlier loss recovery underway (see RFC4138; Appendix B).
* The last condition is necessary at least in tp->frto_counter case.
*/
@@ -1701,6 +1709,8 @@
tcp_for_write_queue(skb, sk) {
if (skb == tcp_send_head(sk))
break;
+
+ TCP_SKB_CB(skb)->sacked &= ~TCPCB_LOST;
/*
* Count the retransmission made on RTO correctly (only when
* waiting for the first ACK and did not get it)...
@@ -1714,7 +1724,7 @@
} else {
if (TCP_SKB_CB(skb)->sacked & TCPCB_RETRANS)
tp->undo_marker = 0;
- TCP_SKB_CB(skb)->sacked &= ~(TCPCB_LOST|TCPCB_SACKED_RETRANS);
+ TCP_SKB_CB(skb)->sacked &= ~TCPCB_SACKED_RETRANS;
}
/* Don't lost mark skbs that were fwd transmitted after RTO */
@@ -3103,11 +3113,11 @@
/* See if we can take anything off of the retransmit queue. */
flag |= tcp_clean_rtx_queue(sk, &seq_rtt, prior_fackets);
+ if (tp->frto_counter)
+ frto_cwnd = tcp_process_frto(sk, flag);
/* Guarantee sacktag reordering detection against wrap-arounds */
if (before(tp->frto_highmark, tp->snd_una))
tp->frto_highmark = 0;
- if (tp->frto_counter)
- frto_cwnd = tcp_process_frto(sk, flag);
if (tcp_ack_is_dubious(sk, flag)) {
/* Advance CWND, if state allows this. */
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b4e32ab..72e1c93 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -242,6 +242,8 @@
u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
u8 ssid[IEEE80211_MAX_SSID_LEN];
size_t ssid_len;
+ u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
+ size_t scan_ssid_len;
u16 aid;
u16 ap_capab, capab;
u8 *extra_ie; /* to be added to the end of AssocReq */
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index 2079e98..015b3f8 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -2002,7 +2002,10 @@
if (ifsta->state != IEEE80211_AUTHENTICATE &&
ifsta->state != IEEE80211_ASSOCIATE &&
test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
- ieee80211_sta_start_scan(dev, NULL, 0);
+ if (ifsta->scan_ssid_len)
+ ieee80211_sta_start_scan(dev, ifsta->scan_ssid, ifsta->scan_ssid_len);
+ else
+ ieee80211_sta_start_scan(dev, NULL, 0);
return;
}
@@ -2872,6 +2875,9 @@
return -EBUSY;
}
+ ifsta->scan_ssid_len = ssid_len;
+ if (ssid_len)
+ memcpy(ifsta->scan_ssid, ssid, ssid_len);
set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
queue_work(local->hw.workqueue, &ifsta->work);
return 0;
diff --git a/net/netfilter/nf_conntrack_extend.c b/net/netfilter/nf_conntrack_extend.c
index a1a65a1..cf6ba66 100644
--- a/net/netfilter/nf_conntrack_extend.c
+++ b/net/netfilter/nf_conntrack_extend.c
@@ -109,7 +109,7 @@
rcu_read_lock();
t = rcu_dereference(nf_ct_ext_types[i]);
if (t && t->move)
- t->move(ct, ct->ext + ct->ext->offset[id]);
+ t->move(ct, ct->ext + ct->ext->offset[i]);
rcu_read_unlock();
}
kfree(ct->ext);
diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c
index 87bc144..3dd4b3c 100644
--- a/net/netfilter/nf_sockopt.c
+++ b/net/netfilter/nf_sockopt.c
@@ -143,12 +143,12 @@
if (ops->compat_get)
ret = ops->compat_get(sk, val, opt, len);
else
- ret = ops->get(sk, val, ops, len);
+ ret = ops->get(sk, val, opt, len);
} else {
if (ops->compat_set)
- ret = ops->compat_set(sk, val, ops, *len);
+ ret = ops->compat_set(sk, val, opt, *len);
else
- ret = ops->set(sk, val, ops, *len);
+ ret = ops->set(sk, val, opt, *len);
}
module_put(ops->owner);
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index fa1a6f4..e595e65 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -134,7 +134,7 @@
{
struct Qdisc *q = dev->qdisc;
struct sk_buff *skb;
- int ret;
+ int ret = NETDEV_TX_BUSY;
/* Dequeue packet */
if (unlikely((skb = dev_dequeue_skb(dev, q)) == NULL))
@@ -145,7 +145,8 @@
spin_unlock(&dev->queue_lock);
HARD_TX_LOCK(dev, smp_processor_id());
- ret = dev_hard_start_xmit(skb, dev);
+ if (!netif_subqueue_stopped(dev, skb))
+ ret = dev_hard_start_xmit(skb, dev);
HARD_TX_UNLOCK(dev);
spin_lock(&dev->queue_lock);
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index dc55cc97..1afeb3e 100644
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -320,9 +320,9 @@
xprt->slot = kcalloc(xprt->max_reqs,
sizeof(struct rpc_rqst), GFP_KERNEL);
if (xprt->slot == NULL) {
- kfree(xprt);
dprintk("RPC: %s: couldn't allocate %d slots\n",
__func__, xprt->max_reqs);
+ kfree(xprt);
return ERR_PTR(-ENOMEM);
}
diff --git a/samples/markers/marker-example.c b/samples/markers/marker-example.c
index e787c6d..05e438f 100644
--- a/samples/markers/marker-example.c
+++ b/samples/markers/marker-example.c
@@ -19,7 +19,8 @@
{
int i;
- trace_mark(subsystem_event, "%d %s", 123, "example string");
+ trace_mark(subsystem_event, "integer %d string %s", 123,
+ "example string");
for (i = 0; i < 10; i++)
trace_mark(subsystem_eventb, MARK_NOARGS);
return -EPERM;
diff --git a/samples/markers/probe-example.c b/samples/markers/probe-example.c
index 238b2e3..a367975 100644
--- a/samples/markers/probe-example.c
+++ b/samples/markers/probe-example.c
@@ -53,7 +53,7 @@
static struct probe_data probe_array[] =
{
{ .name = "subsystem_event",
- .format = "%d %s",
+ .format = "integer %d string %s",
.probe_func = probe_subsystem_event },
{ .name = "subsystem_eventb",
.format = MARK_NOARGS,
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 5959412..1ad6f7f 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -4,12 +4,7 @@
PHONY += oldconfig xconfig gconfig menuconfig config silentoldconfig update-po-config
-# If a arch/$(SRCARCH)/Kconfig.$(ARCH) file exist use it
-ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/Kconfig.$(ARCH)),)
- Kconfig := arch/$(SRCARCH)/Kconfig.$(ARCH)
-else
- Kconfig := arch/$(SRCARCH)/Kconfig
-endif
+Kconfig := arch/$(SRCARCH)/Kconfig
xconfig: $(obj)/qconf
$< $(Kconfig)
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index b2913e9..e0f402f 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -83,6 +83,68 @@
return name;
}
+static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
+{
+ char *p2;
+
+ switch (sym->type) {
+ case S_TRISTATE:
+ if (p[0] == 'm') {
+ sym->def[def].tri = mod;
+ sym->flags |= def_flags;
+ break;
+ }
+ case S_BOOLEAN:
+ if (p[0] == 'y') {
+ sym->def[def].tri = yes;
+ sym->flags |= def_flags;
+ break;
+ }
+ if (p[0] == 'n') {
+ sym->def[def].tri = no;
+ sym->flags |= def_flags;
+ break;
+ }
+ conf_warning("symbol value '%s' invalid for %s", p, sym->name);
+ break;
+ case S_OTHER:
+ if (*p != '"') {
+ for (p2 = p; *p2 && !isspace(*p2); p2++)
+ ;
+ sym->type = S_STRING;
+ goto done;
+ }
+ case S_STRING:
+ if (*p++ != '"')
+ break;
+ for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
+ if (*p2 == '"') {
+ *p2 = 0;
+ break;
+ }
+ memmove(p2, p2 + 1, strlen(p2));
+ }
+ if (!p2) {
+ conf_warning("invalid string found");
+ return 1;
+ }
+ case S_INT:
+ case S_HEX:
+ done:
+ if (sym_string_valid(sym, p)) {
+ sym->def[def].val = strdup(p);
+ sym->flags |= def_flags;
+ } else {
+ conf_warning("symbol value '%s' invalid for %s", p, sym->name);
+ return 1;
+ }
+ break;
+ default:
+ ;
+ }
+ return 0;
+}
+
int conf_read_simple(const char *name, int def)
{
FILE *in = NULL;
@@ -213,61 +275,8 @@
conf_warning("trying to reassign symbol %s", sym->name);
break;
}
- switch (sym->type) {
- case S_TRISTATE:
- if (p[0] == 'm') {
- sym->def[def].tri = mod;
- sym->flags |= def_flags;
- break;
- }
- case S_BOOLEAN:
- if (p[0] == 'y') {
- sym->def[def].tri = yes;
- sym->flags |= def_flags;
- break;
- }
- if (p[0] == 'n') {
- sym->def[def].tri = no;
- sym->flags |= def_flags;
- break;
- }
- conf_warning("symbol value '%s' invalid for %s", p, sym->name);
- break;
- case S_OTHER:
- if (*p != '"') {
- for (p2 = p; *p2 && !isspace(*p2); p2++)
- ;
- sym->type = S_STRING;
- goto done;
- }
- case S_STRING:
- if (*p++ != '"')
- break;
- for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
- if (*p2 == '"') {
- *p2 = 0;
- break;
- }
- memmove(p2, p2 + 1, strlen(p2));
- }
- if (!p2) {
- conf_warning("invalid string found");
- continue;
- }
- case S_INT:
- case S_HEX:
- done:
- if (sym_string_valid(sym, p)) {
- sym->def[def].val = strdup(p);
- sym->flags |= def_flags;
- } else {
- conf_warning("symbol value '%s' invalid for %s", p, sym->name);
- continue;
- }
- break;
- default:
- ;
- }
+ if (conf_set_sym_val(sym, def, def_flags, p))
+ continue;
break;
case '\r':
case '\n':
diff --git a/security/commoncap.c b/security/commoncap.c
index bf67871..302e8d0 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -526,6 +526,10 @@
if (info != SEND_SIG_NOINFO && (is_si_special(info) || SI_FROMKERNEL(info)))
return 0;
+ /* sigcont is permitted within same session */
+ if (sig == SIGCONT && (task_session_nr(current) == task_session_nr(p)))
+ return 0;
+
if (secid)
/*
* Signal sent as a particular user.
