| /*- |
| * Copyright (c) 1995 Terrence R. Lambert |
| * All rights reserved. |
| * |
| * Copyright (c) 1990, 1993 |
| * The Regents of the University of California. All rights reserved. |
| * (c) UNIX System Laboratories, Inc. |
| * All or some portions of this file are derived from material licensed |
| * to the University of California by American Telephone and Telegraph |
| * Co. or Unix System Laboratories, Inc. and are reproduced herein with |
| * the permission of UNIX System Laboratories, Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * This product includes software developed by the University of |
| * California, Berkeley and its contributors. |
| * 4. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * @(#)kernel.h 8.3 (Berkeley) 1/21/94 |
| * $FreeBSD$ |
| */ |
| |
| #ifndef _BSD_SYS_KERNEL_H_ |
| #define _BSD_SYS_KERNEL_H_ |
| |
| #include <sys/bsd_linker_set.h> |
| |
| /* for intrhook below */ |
| #include <sys/bsd_queue.h> |
| |
| /* Global variables for the kernel. */ |
| |
| /* 1.1 */ |
| extern char kernelname[MAXPATHLEN]; |
| |
| extern int bsd_tick; /* usec per tick (1000000 / hz) */ |
| extern int bsd_hz; /* system clock's frequency */ |
| extern int psratio; /* ratio: prof / stat */ |
| extern int stathz; /* statistics clock's frequency */ |
| extern int profhz; /* profiling clock's frequency */ |
| extern int profprocs; /* number of process's profiling */ |
| extern int bsd_ticks; |
| |
| |
| /* |
| * Enumerated types for known system startup interfaces. |
| * |
| * Startup occurs in ascending numeric order; the list entries are |
| * sorted prior to attempting startup to guarantee order. Items |
| * of the same level are arbitrated for order based on the 'order' |
| * element. |
| * |
| * These numbers are arbitrary and are chosen ONLY for ordering; the |
| * enumeration values are explicit rather than implicit to provide |
| * for binary compatibility with inserted elements. |
| * |
| * The SI_SUB_RUN_SCHEDULER value must have the highest lexical value. |
| * |
| * The SI_SUB_SWAP values represent a value used by |
| * the BSD 4.4Lite but not by FreeBSD; it is maintained in dependent |
| * order to support porting. |
| * |
| * The SI_SUB_PROTO_BEGIN and SI_SUB_PROTO_END bracket a range of |
| * initializations to take place at splimp(). This is a historical |
| * wart that should be removed -- probably running everything at |
| * splimp() until the first init that doesn't want it is the correct |
| * fix. They are currently present to ensure historical behavior. |
| */ |
| enum sysinit_sub_id { |
| SI_SUB_DUMMY = 0x0000000, /* not executed; for linker*/ |
| SI_SUB_DONE = 0x0000001, /* processed*/ |
| SI_SUB_TUNABLES = 0x0700000, /* establish tunable values */ |
| SI_SUB_COPYRIGHT = 0x0800001, /* first use of console*/ |
| SI_SUB_SETTINGS = 0x0880000, /* check and recheck settings */ |
| SI_SUB_MTX_POOL_STATIC = 0x0900000, /* static mutex pool */ |
| SI_SUB_LOCKMGR = 0x0980000, /* lockmgr locks */ |
| SI_SUB_VM = 0x1000000, /* virtual memory system init*/ |
| SI_SUB_KMEM = 0x1800000, /* kernel memory*/ |
| SI_SUB_KVM_RSRC = 0x1A00000, /* kvm operational limits*/ |
| SI_SUB_WITNESS = 0x1A80000, /* witness initialization */ |
| SI_SUB_MTX_POOL_DYNAMIC = 0x1AC0000, /* dynamic mutex pool */ |
| SI_SUB_LOCK = 0x1B00000, /* various locks */ |
| SI_SUB_EVENTHANDLER = 0x1C00000, /* eventhandler init */ |
| SI_SUB_VNET_PRELINK = 0x1E00000, /* vnet init before modules */ |
| SI_SUB_KLD = 0x2000000, /* KLD and module setup */ |
| SI_SUB_CPU = 0x2100000, /* CPU resource(s)*/ |
| SI_SUB_RANDOM = 0x2120000, /* random number generator */ |
| SI_SUB_KDTRACE = 0x2140000, /* Kernel dtrace hooks */ |
| SI_SUB_MAC = 0x2180000, /* TrustedBSD MAC subsystem */ |
| SI_SUB_MAC_POLICY = 0x21C0000, /* TrustedBSD MAC policies */ |
| SI_SUB_MAC_LATE = 0x21D0000, /* TrustedBSD MAC subsystem */ |
| SI_SUB_VNET = 0x21E0000, /* vnet 0 */ |
| SI_SUB_INTRINSIC = 0x2200000, /* proc 0*/ |
| SI_SUB_VM_CONF = 0x2300000, /* config VM, set limits*/ |
| SI_SUB_DDB_SERVICES = 0x2380000, /* capture, scripting, etc. */ |
| SI_SUB_RUN_QUEUE = 0x2400000, /* set up run queue*/ |
| SI_SUB_KTRACE = 0x2480000, /* ktrace */ |
| SI_SUB_OPENSOLARIS = 0x2490000, /* OpenSolaris compatibility */ |
| SI_SUB_CYCLIC = 0x24A0000, /* Cyclic timers */ |
| SI_SUB_AUDIT = 0x24C0000, /* audit */ |
| SI_SUB_CREATE_INIT = 0x2500000, /* create init process*/ |
| SI_SUB_SCHED_IDLE = 0x2600000, /* required idle procs */ |
| SI_SUB_MBUF = 0x2700000, /* mbuf subsystem */ |
| SI_SUB_INTR = 0x2800000, /* interrupt threads */ |
| SI_SUB_SOFTINTR = 0x2800001, /* start soft interrupt thread */ |
| SI_SUB_ACL = 0x2900000, /* start for filesystem ACLs */ |
| SI_SUB_DEVFS = 0x2F00000, /* devfs ready for devices */ |
| SI_SUB_INIT_IF = 0x3000000, /* prep for net interfaces */ |
| SI_SUB_NETGRAPH = 0x3010000, /* Let Netgraph initialize */ |
| SI_SUB_DTRACE = 0x3020000, /* DTrace subsystem */ |
| SI_SUB_DTRACE_PROVIDER = 0x3048000, /* DTrace providers */ |
| SI_SUB_DTRACE_ANON = 0x308C000, /* DTrace anon enabling */ |
| SI_SUB_DRIVERS = 0x3100000, /* Let Drivers initialize */ |
| SI_SUB_CONFIGURE = 0x3800000, /* Configure devices */ |
| SI_SUB_VFS = 0x4000000, /* virtual filesystem*/ |
| SI_SUB_CLOCKS = 0x4800000, /* real time and stat clocks*/ |
| SI_SUB_CLIST = 0x5800000, /* clists*/ |
| SI_SUB_SYSV_SHM = 0x6400000, /* System V shared memory*/ |
| SI_SUB_SYSV_SEM = 0x6800000, /* System V semaphores*/ |
| SI_SUB_SYSV_MSG = 0x6C00000, /* System V message queues*/ |
| SI_SUB_P1003_1B = 0x6E00000, /* P1003.1B realtime */ |
| SI_SUB_PSEUDO = 0x7000000, /* pseudo devices*/ |
| SI_SUB_EXEC = 0x7400000, /* execve() handlers */ |
| SI_SUB_PROTO_BEGIN = 0x8000000, /* XXX: set splimp (kludge)*/ |
| SI_SUB_PROTO_IF = 0x8400000, /* interfaces*/ |
| SI_SUB_PROTO_DOMAININIT = 0x8600000, /* domain registration system */ |
| SI_SUB_PROTO_DOMAIN = 0x8800000, /* domains (address families?)*/ |
| SI_SUB_PROTO_IFATTACHDOMAIN = 0x8800001, /* domain dependent data init*/ |
| SI_SUB_PROTO_END = 0x8ffffff, /* XXX: set splx (kludge)*/ |
| SI_SUB_KPROF = 0x9000000, /* kernel profiling*/ |
| SI_SUB_KICK_SCHEDULER = 0xa000000, /* start the timeout events*/ |
| SI_SUB_INT_CONFIG_HOOKS = 0xa800000, /* Interrupts enabled config */ |
| SI_SUB_ROOT_CONF = 0xb000000, /* Find root devices */ |
| SI_SUB_DUMP_CONF = 0xb200000, /* Find dump devices */ |
| SI_SUB_RAID = 0xb380000, /* Configure GEOM classes */ |
| SI_SUB_SWAP = 0xc000000, /* swap */ |
| SI_SUB_INTRINSIC_POST = 0xd000000, /* proc 0 cleanup*/ |
| SI_SUB_SYSCALLS = 0xd800000, /* register system calls */ |
| SI_SUB_VNET_DONE = 0xdc00000, /* vnet registration complete */ |
| SI_SUB_KTHREAD_INIT = 0xe000000, /* init process*/ |
| SI_SUB_KTHREAD_PAGE = 0xe400000, /* pageout daemon*/ |
| SI_SUB_KTHREAD_VM = 0xe800000, /* vm daemon*/ |
| SI_SUB_KTHREAD_BUF = 0xea00000, /* buffer daemon*/ |
| SI_SUB_KTHREAD_UPDATE = 0xec00000, /* update daemon*/ |
| SI_SUB_KTHREAD_IDLE = 0xee00000, /* idle procs*/ |
| SI_SUB_SMP = 0xf000000, /* start the APs*/ |
| SI_SUB_RUN_SCHEDULER = 0xfffffff /* scheduler*/ |
| }; |
| |
| |
| /* |
| * Some enumerated orders; "ANY" sorts last. |
| */ |
| enum sysinit_elem_order { |
| SI_ORDER_FIRST = 0x0000000, /* first*/ |
| SI_ORDER_SECOND = 0x0000001, /* second*/ |
| SI_ORDER_THIRD = 0x0000002, /* third*/ |
| SI_ORDER_FOURTH = 0x0000003, /* fourth*/ |
| SI_ORDER_MIDDLE = 0x1000000, /* somewhere in the middle */ |
| SI_ORDER_ANY = 0xfffffff /* last*/ |
| }; |
| |
| |
| /* |
| * A system initialization call instance |
| * |
| * At the moment there is one instance of sysinit. We probably do not |
| * want two which is why this code is if'd out, but we definitely want |
| * to discern SYSINIT's which take non-constant data pointers and |
| * SYSINIT's which take constant data pointers, |
| * |
| * The C_* macros take functions expecting const void * arguments |
| * while the non-C_* macros take functions expecting just void * arguments. |
| * |
| * With -Wcast-qual on, the compiler issues warnings: |
| * - if we pass non-const data or functions taking non-const data |
| * to a C_* macro. |
| * |
| * - if we pass const data to the normal macros |
| * |
| * However, no warning is issued if we pass a function taking const data |
| * through a normal non-const macro. This is ok because the function is |
| * saying it won't modify the data so we don't care whether the data is |
| * modifiable or not. |
| */ |
| |
| typedef void (*sysinit_nfunc_t)(void *); |
| typedef void (*sysinit_cfunc_t)(const void *); |
| |
| struct sysinit { |
| enum sysinit_sub_id subsystem; /* subsystem identifier*/ |
| enum sysinit_elem_order order; /* init order within subsystem*/ |
| sysinit_cfunc_t func; /* function */ |
| const void *udata; /* multiplexer/argument */ |
| }; |
| |
| /* |
| * Default: no special processing |
| * |
| * The C_ version of SYSINIT is for data pointers to const |
| * data ( and functions taking data pointers to const data ). |
| * At the moment it is no different from SYSINIT and thus |
| * still results in warnings. |
| * |
| * The casts are necessary to have the compiler produce the |
| * correct warnings when -Wcast-qual is used. |
| * |
| */ |
| #define C_SYSINIT(uniquifier, subsystem, order, func, ident) \ |
| static struct sysinit uniquifier ## _sys_init = { \ |
| subsystem, \ |
| order, \ |
| func, \ |
| (ident) \ |
| }; \ |
| DATA_SET(sysinit_set,uniquifier ## _sys_init) |
| |
| #define SYSINIT(uniquifier, subsystem, order, func, ident) \ |
| C_SYSINIT(uniquifier, subsystem, order, \ |
| (sysinit_cfunc_t)(sysinit_nfunc_t)func, (void *)(ident)) |
| |
| /* |
| * Called on module unload: no special processing |
| */ |
| #define C_SYSUNINIT(uniquifier, subsystem, order, func, ident) \ |
| static struct sysinit uniquifier ## _sys_uninit = { \ |
| subsystem, \ |
| order, \ |
| func, \ |
| (ident) \ |
| }; \ |
| DATA_SET(sysuninit_set,uniquifier ## _sys_uninit) |
| |
| #define SYSUNINIT(uniquifier, subsystem, order, func, ident) \ |
| C_SYSUNINIT(uniquifier, subsystem, order, \ |
| (sysinit_cfunc_t)(sysinit_nfunc_t)func, (void *)(ident)) |
| |
| void sysinit_add(struct sysinit **set, struct sysinit **set_end); |
| |
| /* |
| * Infrastructure for tunable 'constants'. Value may be specified at compile |
| * time or kernel load time. Rules relating tunables together can be placed |
| * in a SYSINIT function at SI_SUB_TUNABLES with SI_ORDER_LAST. |
| * |
| * WARNING: developers should never use the reserved suffixes specified in |
| * loader.conf(5) for any tunables or conflicts will result. |
| */ |
| |
| /* |
| * int |
| * please avoid using for new tunables! |
| */ |
| extern void tunable_int_init(void *); |
| struct tunable_int { |
| const char *path; |
| int *var; |
| }; |
| #define TUNABLE_INT(path, var) \ |
| static struct tunable_int __CONCAT(__tunable_int_, __LINE__) = { \ |
| (path), \ |
| (var), \ |
| }; \ |
| SYSINIT(__CONCAT(__Tunable_init_, __LINE__), \ |
| SI_SUB_TUNABLES, SI_ORDER_MIDDLE, tunable_int_init, \ |
| &__CONCAT(__tunable_int_, __LINE__)) |
| |
| #define TUNABLE_INT_FETCH(path, var) getenv_int((path), (var)) |
| |
| /* |
| * long |
| */ |
| extern void tunable_long_init(void *); |
| struct tunable_long { |
| const char *path; |
| long *var; |
| }; |
| #define TUNABLE_LONG(path, var) \ |
| static struct tunable_long __CONCAT(__tunable_long_, __LINE__) = { \ |
| (path), \ |
| (var), \ |
| }; \ |
| SYSINIT(__CONCAT(__Tunable_init_, __LINE__), \ |
| SI_SUB_TUNABLES, SI_ORDER_MIDDLE, tunable_long_init,\ |
| &__CONCAT(__tunable_long_, __LINE__)) |
| |
| #define TUNABLE_LONG_FETCH(path, var) getenv_long((path), (var)) |
| |
| /* |
| * unsigned long |
| */ |
| extern void tunable_ulong_init(void *); |
| struct tunable_ulong { |
| const char *path; |
| unsigned long *var; |
| }; |
| #define TUNABLE_ULONG(path, var) \ |
| static struct tunable_ulong __CONCAT(__tunable_ulong_, __LINE__) = { \ |
| (path), \ |
| (var), \ |
| }; \ |
| SYSINIT(__CONCAT(__Tunable_init_, __LINE__), \ |
| SI_SUB_TUNABLES, SI_ORDER_MIDDLE, tunable_ulong_init, \ |
| &__CONCAT(__tunable_ulong_, __LINE__)) |
| |
| #define TUNABLE_ULONG_FETCH(path, var) getenv_ulong((path), (var)) |
| |
| /* |
| * quad |
| */ |
| extern void tunable_quad_init(void *); |
| struct tunable_quad { |
| const char *path; |
| quad_t *var; |
| }; |
| #define TUNABLE_QUAD(path, var) \ |
| static struct tunable_quad __CONCAT(__tunable_quad_, __LINE__) = { \ |
| (path), \ |
| (var), \ |
| }; \ |
| SYSINIT(__CONCAT(__Tunable_init_, __LINE__), \ |
| SI_SUB_TUNABLES, SI_ORDER_MIDDLE, tunable_quad_init, \ |
| &__CONCAT(__tunable_quad_, __LINE__)) |
| |
| #define TUNABLE_QUAD_FETCH(path, var) getenv_quad((path), (var)) |
| |
| extern void tunable_str_init(void *); |
| struct tunable_str { |
| const char *path; |
| char *var; |
| int size; |
| }; |
| #define TUNABLE_STR(path, var, size) \ |
| static struct tunable_str __CONCAT(__tunable_str_, __LINE__) = { \ |
| (path), \ |
| (var), \ |
| (size), \ |
| }; \ |
| SYSINIT(__CONCAT(__Tunable_init_, __LINE__), \ |
| SI_SUB_TUNABLES, SI_ORDER_MIDDLE, tunable_str_init, \ |
| &__CONCAT(__tunable_str_, __LINE__)) |
| |
| #define TUNABLE_STR_FETCH(path, var, size) \ |
| getenv_string((path), (var), (size)) |
| |
| struct intr_config_hook { |
| TAILQ_ENTRY(intr_config_hook) ich_links; |
| void (*ich_func)(void *arg); |
| void *ich_arg; |
| }; |
| |
| int config_intrhook_establish(struct intr_config_hook *hook); |
| void config_intrhook_disestablish(struct intr_config_hook *hook); |
| |
| #endif /* !_BSD_SYS_KERNEL_H_*/ |