Replace remaining uses of vm_fault_quick() with vm_fault_page_quick().
[dragonfly.git] / sys / sys / systm.h
CommitLineData
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1/*-
2 * Copyright (c) 1982, 1988, 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)systm.h 8.7 (Berkeley) 3/29/95
39 * $FreeBSD: src/sys/sys/systm.h,v 1.111.2.18 2002/12/17 18:04:02 sam Exp $
431d0fef 40 * $DragonFly: src/sys/sys/systm.h,v 1.61 2007/01/09 23:34:05 dillon Exp $
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41 */
42
43#ifndef _SYS_SYSTM_H_
44#define _SYS_SYSTM_H_
45
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46#ifndef _KERNEL
47#error "This file should not be included by userland programs."
03d6a592 48#else
d9f3f6fa 49
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50#ifndef _MACHINE_TYPES_H_
51#include <machine/types.h>
52#endif
53#ifndef _MACHINE_STDARG_H_
54#include <machine/stdarg.h>
55#endif
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56#include <machine/atomic.h>
57#include <machine/cpufunc.h>
58#include <sys/callout.h>
59
60extern int securelevel; /* system security level (see init(8)) */
61
62extern int cold; /* nonzero if we are doing a cold boot */
63extern const char *panicstr; /* panic message */
64extern int dumping; /* system is dumping */
65extern int safepri; /* safe ipl when cold or panicing */
66extern char version[]; /* system version */
67extern char copyright[]; /* system copyright */
68
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69extern int selwait; /* select timeout address */
70
71extern u_char curpriority; /* priority of current process */
72
73extern int physmem; /* physical memory */
74
b13267a5 75extern cdev_t dumpdev; /* dump device */
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76extern long dumplo; /* offset into dumpdev */
77
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78extern cdev_t rootdev; /* root device */
79extern cdev_t rootdevs[2]; /* possible root devices */
984263bc 80extern char *rootdevnames[2]; /* names of possible root devices */
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81
82extern int boothowto; /* reboot flags, from console subsystem */
83extern int bootverbose; /* nonzero to print verbose messages */
84
85extern int maxusers; /* system tune hint */
86
17a9f566 87extern int ncpus; /* total number of cpus (real, hyper, virtual)*/
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88extern int ncpus2; /* ncpus rounded down to power of 2 */
89extern int ncpus2_shift; /* log base 2 of ncpus2 */
90extern int ncpus2_mask; /* ncpus2 - 1 */
da3639ef 91extern int clocks_running; /* timing/timeout subsystem is operational */
17a9f566 92
97ee3efc 93/* XXX TGEN these don't belong here, they're MD on i386/amd64 */
527fddf7 94extern u_int cpu_feature; /* CPUID_* features */
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95extern u_int cpu_feature2; /* CPUID2_* features */
96
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97extern int nfs_diskless_valid; /* NFS diskless params were obtained */
98extern vm_paddr_t Maxmem; /* Highest physical memory address in system */
527fddf7 99
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100#ifdef INVARIANTS /* The option is always available */
101#define KASSERT(exp,msg) do { if (!(exp)) panic msg; } while (0)
5ee2acaa 102#define KKASSERT(exp) if (!(exp)) panic("assertion: %s in %s", #exp, __func__)
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103#else
104#define KASSERT(exp,msg)
41c20dac 105#define KKASSERT(exp)
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106#endif
107
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108#define CTASSERT(x) _CTASSERT(x, __LINE__)
109#define _CTASSERT(x, y) __CTASSERT(x, y)
110#define __CTASSERT(x, y) typedef char __assert ## y[(x) ? 1 : -1]
111
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112/*
113 * General function declarations.
114 */
115
88c4d2f6 116struct intrframe;
bf765287 117struct spinlock;
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118struct malloc_type;
119struct proc;
f1d1c3fa 120struct xwait;
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121struct timeval;
122struct tty;
123struct uio;
8ad65e08 124struct globaldata;
41c20dac 125struct thread;
4a22e893 126struct trapframe;
6bf59cd2 127struct user;
135d7199 128struct vmspace;
4e7c41c5 129struct savetls;
984263bc 130
b153f746 131void Debugger (const char *msg);
801f17b9 132void backtrace(void);
b153f746 133void mi_gdinit (struct globaldata *gd, int cpu);
6bf59cd2 134void mi_proc0init(struct globaldata *gd, struct user *proc0paddr);
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135int dumpstatus (vm_offset_t addr, off_t count);
136int nullop (void);
b13267a5 137int seltrue (cdev_t dev, int which);
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138int ureadc (int, struct uio *);
139void *hashinit (int count, struct malloc_type *type, u_long *hashmask);
140void *phashinit (int count, struct malloc_type *type, u_long *nentries);
141
4a22e893 142int cpu_sanitize_frame (struct trapframe *);
4e7c41c5 143int cpu_sanitize_tls (struct savetls *);
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144void cpu_halt (void);
145void cpu_reset (void);
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146void cpu_boot (int);
147void cpu_rootconf (void);
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148void cpu_vmspace_alloc(struct vmspace *);
149void cpu_vmspace_free(struct vmspace *);
4e7c41c5 150void set_user_TLS(void);
431d0fef 151void set_vkernel_fp(struct trapframe *);
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152
153vm_paddr_t kvtop(void *addr);
154int is_physical_memory (vm_offset_t addr);
155
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156extern uint32_t crc32_tab[];
157uint32_t crc32(const void *buf, size_t size);
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158void init_param1 (void);
159void init_param2 (int physpages);
160void tablefull (const char *);
379210cb 161int kvcprintf (char const *, void (*)(int, void*), void *, int,
e2565a42 162 __va_list) __printflike(1, 0);
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163int log (int, const char *, ...) __printflike(2, 3);
164void logwakeup (void);
165void log_console (struct uio *);
169276ba 166int kprintf (const char *, ...) __printflike(1, 2);
169276ba 167int ksnprintf (char *, size_t, const char *, ...) __printflike(3, 4);
169276ba 168int ksprintf (char *buf, const char *, ...) __printflike(2, 3);
b153f746 169int uprintf (const char *, ...) __printflike(1, 2);
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170int kvprintf (const char *, __va_list) __printflike(1, 0);
171int kvsnprintf (char *, size_t, const char *, __va_list) __printflike(3, 0);
172int kvsprintf (char *buf, const char *, __va_list) __printflike(2, 0);
b153f746 173int ttyprintf (struct tty *, const char *, ...) __printflike(2, 3);
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174int ksscanf (const char *, char const *, ...);
175int kvsscanf (const char *, char const *, __va_list);
44a09dd6 176
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177long strtol (const char *, char **, int);
178u_long strtoul (const char *, char **, int);
179quad_t strtoq (const char *, char **, int);
180u_quad_t strtouq (const char *, char **, int);
984263bc 181
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182/*
183 * note: some functions commonly used by device drivers may be passed
184 * pointers to volatile storage, volatile set to avoid warnings.
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185 *
186 * NOTE: bcopyb() - is a dumb byte-granular bcopy. This routine is
187 * explicitly not meant to be sophisticated.
188 * NOTE: bcopyi() - is a dumb int-granular bcopy (len is still in bytes).
189 * This routine is explicitly not meant to be sophisticated.
f15db79e 190 */
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191void bcopyb (const void *from, void *to, size_t len);
192void bcopyi (const void *from, void *to, size_t len);
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193void bcopy (volatile const void *from, volatile void *to, size_t len);
194void ovbcopy (const void *from, void *to, size_t len);
afaa1d56 195void bzero (volatile void *buf, size_t len);
b153f746 196void *memcpy (void *to, const void *from, size_t len);
984263bc 197
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198int copystr (const void *kfaddr, void *kdaddr, size_t len,
199 size_t *lencopied);
200int copyinstr (const void *udaddr, void *kaddr, size_t len,
201 size_t *lencopied);
202int copyin (const void *udaddr, void *kaddr, size_t len);
203int copyout (const void *kaddr, void *udaddr, size_t len);
984263bc 204
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205int fubyte (const void *base);
206int subyte (void *base, int byte);
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207long fuword (const void *base);
208int suword (void *base, long word);
209int fusword (void *base);
210int susword (void *base, int word);
984263bc 211
b153f746 212void realitexpire (void *);
f0f0df1c 213void DELAY(int usec);
984263bc 214
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215void startprofclock (struct proc *);
216void stopprofclock (struct proc *);
217void setstatclockrate (int hzrate);
984263bc 218
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219/*
220 * Console I/O spinlocks - these typically also hard-disable interrupts
221 * for the duration.
222 */
223void cons_lock(void);
224void cons_unlock(void);
225
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226char *kgetenv (const char *name);
227#define testenv kgetenv
6c6180e0 228#define freeenv(p)
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229int kgetenv_int (const char *name, int *data);
230int kgetenv_string (const char *name, char *data, int size);
231int kgetenv_quad (const char *name, quad_t *data);
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232extern char *kern_envp;
233
234#ifdef APM_FIXUP_CALLTODO
b153f746 235void adjust_timeout_calltodo (struct timeval *time_change);
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236#endif /* APM_FIXUP_CALLTODO */
237
238#include <sys/libkern.h>
239
240/* Initialize the world */
a8a86718 241void mi_startup (void);
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242void consinit (void);
243void cpu_initclocks (void);
244void nchinit (void);
245void usrinfoinit (void);
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246
247/* Finalize the world. */
b153f746 248void shutdown_nice (int);
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249
250/*
251 * Kernel to clock driver interface.
252 */
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253void inittodr (time_t base);
254void resettodr (void);
255void startrtclock (void);
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256
257/* Timeouts */
b153f746 258typedef void timeout_t (void *); /* timeout function type */
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259#define CALLOUT_HANDLE_INITIALIZER(handle) \
260 { NULL }
261
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262#if 0
263/* OBSOLETE INTERFACE */
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264void callout_handle_init (struct callout_handle *);
265struct callout_handle timeout (timeout_t *, void *, int);
266void untimeout (timeout_t *, void *, struct callout_handle);
7eb3b2ae 267#endif
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268
269/* Interrupt management */
270
271/*
272 * For the alpha arch, some of these functions are static __inline, and
273 * the others should be.
274 */
275#ifdef __i386__
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276void setdelayed (void);
277void setsoftast (void);
278void setsoftcambio (void);
279void setsoftcamnet (void);
280void setsoftclock (void);
281void setsoftcrypto (void);
282void setsoftnet (void);
283void setsofttty (void);
284void setsoftvm (void);
285void setsofttq (void);
286void schedsoftcamnet (void);
287void schedsoftcambio (void);
288void schedsoftnet (void);
289void schedsofttty (void);
290void schedsoftvm (void);
291void schedsofttq (void);
292intrmask_t softclockpending (void);
b153f746 293void splz (void);
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294#endif /* __i386__ */
295
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296/*
297 * Various callout lists.
298 */
299
300/* Exit callout list declarations. */
b153f746 301typedef void (*exitlist_fn) (struct thread *td);
984263bc 302
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303int at_exit (exitlist_fn function);
304int rm_at_exit (exitlist_fn function);
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305
306/* Fork callout list declarations. */
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307typedef void (*forklist_fn) (struct proc *parent, struct proc *child,
308 int flags);
984263bc 309
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310int at_fork (forklist_fn function);
311int rm_at_fork (forklist_fn function);
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312
313/*
314 * Not exactly a callout LIST, but a callout entry.
315 * Allow an external module to define a hardware watchdog tickler.
316 * Normally a process would do this, but there are times when the
317 * kernel needs to be able to hold off the watchdog, when the process
318 * is not active, e.g., when dumping core.
319 */
b153f746 320typedef void (*watchdog_tickle_fn) (void);
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321
322extern watchdog_tickle_fn wdog_tickler;
323
324/*
325 * Common `proc' functions are declared here so that proc.h can be included
326 * less often.
327 */
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328int tsleep (void *, int, const char *, int);
329int msleep (void *, struct spinlock *, int, const char *, int);
16523a43 330void tsleep_interlock (void *chan);
344ad853 331void tstop (struct proc *);
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332void wakeup (void *chan);
333void wakeup_one (void *chan);
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334void wakeup_mycpu (void *chan);
335void wakeup_mycpu_one (void *chan);
336void wakeup_oncpu (struct globaldata *gd, void *chan);
337void wakeup_oncpu_one (struct globaldata *gd, void *chan);
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338void wakeup_domain (void *chan, int domain);
339void wakeup_domain_one (void *chan, int domain);
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340
341/*
b13267a5 342 * Common `cdev_t' stuff are declared here to avoid #include poisoning
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343 */
344
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345int major(cdev_t x);
346int minor(cdev_t x);
347udev_t dev2udev(cdev_t x);
348cdev_t udev2dev(udev_t x, int b);
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349int uminor(udev_t dev);
350int umajor(udev_t dev);
351udev_t makeudev(int x, int y);
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352
353#endif /* _KERNEL */
984263bc 354#endif /* !_SYS_SYSTM_H_ */