Add 'cd9660:acd0' and 'cd9660:acd1' to cdrom_rootdevnames so a root mount
[dragonfly.git] / sys / sys / systm.h
CommitLineData
984263bc
MD
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 $
4e7c41c5 40 * $DragonFly: src/sys/sys/systm.h,v 1.60 2007/01/08 03:33:43 dillon Exp $
984263bc
MD
41 */
42
43#ifndef _SYS_SYSTM_H_
44#define _SYS_SYSTM_H_
45
d9f3f6fa
CP
46#ifndef _KERNEL
47#error "This file should not be included by userland programs."
03d6a592 48#else
d9f3f6fa 49
e2565a42
MD
50#ifndef _MACHINE_TYPES_H_
51#include <machine/types.h>
52#endif
53#ifndef _MACHINE_STDARG_H_
54#include <machine/stdarg.h>
55#endif
984263bc
MD
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
984263bc
MD
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 */
984263bc
MD
76extern long dumplo; /* offset into dumpdev */
77
b13267a5
MD
78extern cdev_t rootdev; /* root device */
79extern cdev_t rootdevs[2]; /* possible root devices */
984263bc 80extern char *rootdevnames[2]; /* names of possible root devices */
984263bc
MD
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)*/
90100055
JH
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 */
97ee3efc
TS
95extern u_int cpu_feature2; /* CPUID2_* features */
96
b9b7eb27
MD
97extern int nfs_diskless_valid; /* NFS diskless params were obtained */
98extern vm_paddr_t Maxmem; /* Highest physical memory address in system */
527fddf7 99
984263bc
MD
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__)
984263bc
MD
103#else
104#define KASSERT(exp,msg)
41c20dac 105#define KKASSERT(exp)
984263bc
MD
106#endif
107
832f5800
JS
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
984263bc
MD
112/*
113 * General function declarations.
114 */
115
88c4d2f6 116struct intrframe;
bf765287 117struct spinlock;
984263bc
MD
118struct malloc_type;
119struct proc;
f1d1c3fa 120struct xwait;
984263bc
MD
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);
b153f746
RG
135int dumpstatus (vm_offset_t addr, off_t count);
136int nullop (void);
b13267a5 137int seltrue (cdev_t dev, int which);
b153f746
RG
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 *);
527fddf7
MD
144void cpu_halt (void);
145void cpu_reset (void);
b153f746
RG
146void cpu_boot (int);
147void cpu_rootconf (void);
135d7199
MD
148void cpu_vmspace_alloc(struct vmspace *);
149void cpu_vmspace_free(struct vmspace *);
4e7c41c5 150void set_user_TLS(void);
1184892f
MD
151
152vm_paddr_t kvtop(void *addr);
153int is_physical_memory (vm_offset_t addr);
154
984263bc
MD
155extern uint32_t crc32_tab[];
156uint32_t crc32(const void *buf, size_t size);
b153f746
RG
157void init_param1 (void);
158void init_param2 (int physpages);
159void tablefull (const char *);
379210cb 160int kvcprintf (char const *, void (*)(int, void*), void *, int,
e2565a42 161 __va_list) __printflike(1, 0);
b153f746
RG
162int log (int, const char *, ...) __printflike(2, 3);
163void logwakeup (void);
164void log_console (struct uio *);
169276ba 165int kprintf (const char *, ...) __printflike(1, 2);
169276ba 166int ksnprintf (char *, size_t, const char *, ...) __printflike(3, 4);
169276ba 167int ksprintf (char *buf, const char *, ...) __printflike(2, 3);
b153f746 168int uprintf (const char *, ...) __printflike(1, 2);
379210cb
MD
169int kvprintf (const char *, __va_list) __printflike(1, 0);
170int kvsnprintf (char *, size_t, const char *, __va_list) __printflike(3, 0);
171int kvsprintf (char *buf, const char *, __va_list) __printflike(2, 0);
b153f746 172int ttyprintf (struct tty *, const char *, ...) __printflike(2, 3);
e93690c2
MD
173int ksscanf (const char *, char const *, ...);
174int kvsscanf (const char *, char const *, __va_list);
44a09dd6 175
b153f746
RG
176long strtol (const char *, char **, int);
177u_long strtoul (const char *, char **, int);
178quad_t strtoq (const char *, char **, int);
179u_quad_t strtouq (const char *, char **, int);
984263bc 180
f15db79e
MD
181/*
182 * note: some functions commonly used by device drivers may be passed
183 * pointers to volatile storage, volatile set to avoid warnings.
527fddf7
MD
184 *
185 * NOTE: bcopyb() - is a dumb byte-granular bcopy. This routine is
186 * explicitly not meant to be sophisticated.
187 * NOTE: bcopyi() - is a dumb int-granular bcopy (len is still in bytes).
188 * This routine is explicitly not meant to be sophisticated.
f15db79e 189 */
527fddf7
MD
190void bcopyb (const void *from, void *to, size_t len);
191void bcopyi (const void *from, void *to, size_t len);
b153f746
RG
192void bcopy (volatile const void *from, volatile void *to, size_t len);
193void ovbcopy (const void *from, void *to, size_t len);
afaa1d56 194void bzero (volatile void *buf, size_t len);
b153f746 195void *memcpy (void *to, const void *from, size_t len);
984263bc 196
b153f746
RG
197int copystr (const void *kfaddr, void *kdaddr, size_t len,
198 size_t *lencopied);
199int copyinstr (const void *udaddr, void *kaddr, size_t len,
200 size_t *lencopied);
201int copyin (const void *udaddr, void *kaddr, size_t len);
202int copyout (const void *kaddr, void *udaddr, size_t len);
984263bc 203
b153f746
RG
204int fubyte (const void *base);
205int subyte (void *base, int byte);
b153f746
RG
206long fuword (const void *base);
207int suword (void *base, long word);
208int fusword (void *base);
209int susword (void *base, int word);
984263bc 210
b153f746 211void realitexpire (void *);
f0f0df1c 212void DELAY(int usec);
984263bc 213
b153f746
RG
214void startprofclock (struct proc *);
215void stopprofclock (struct proc *);
216void setstatclockrate (int hzrate);
984263bc 217
b9b7eb27
MD
218/*
219 * Console I/O spinlocks - these typically also hard-disable interrupts
220 * for the duration.
221 */
222void cons_lock(void);
223void cons_unlock(void);
224
bc01a404
MD
225char *kgetenv (const char *name);
226#define testenv kgetenv
6c6180e0 227#define freeenv(p)
bc01a404
MD
228int kgetenv_int (const char *name, int *data);
229int kgetenv_string (const char *name, char *data, int size);
230int kgetenv_quad (const char *name, quad_t *data);
984263bc
MD
231extern char *kern_envp;
232
233#ifdef APM_FIXUP_CALLTODO
b153f746 234void adjust_timeout_calltodo (struct timeval *time_change);
984263bc
MD
235#endif /* APM_FIXUP_CALLTODO */
236
237#include <sys/libkern.h>
238
239/* Initialize the world */
a8a86718 240void mi_startup (void);
b153f746
RG
241void consinit (void);
242void cpu_initclocks (void);
243void nchinit (void);
244void usrinfoinit (void);
984263bc
MD
245
246/* Finalize the world. */
b153f746 247void shutdown_nice (int);
984263bc
MD
248
249/*
250 * Kernel to clock driver interface.
251 */
b153f746
RG
252void inittodr (time_t base);
253void resettodr (void);
254void startrtclock (void);
984263bc
MD
255
256/* Timeouts */
b153f746 257typedef void timeout_t (void *); /* timeout function type */
984263bc
MD
258#define CALLOUT_HANDLE_INITIALIZER(handle) \
259 { NULL }
260
7eb3b2ae
MD
261#if 0
262/* OBSOLETE INTERFACE */
b153f746
RG
263void callout_handle_init (struct callout_handle *);
264struct callout_handle timeout (timeout_t *, void *, int);
265void untimeout (timeout_t *, void *, struct callout_handle);
7eb3b2ae 266#endif
984263bc
MD
267
268/* Interrupt management */
269
270/*
271 * For the alpha arch, some of these functions are static __inline, and
272 * the others should be.
273 */
274#ifdef __i386__
b153f746
RG
275void setdelayed (void);
276void setsoftast (void);
277void setsoftcambio (void);
278void setsoftcamnet (void);
279void setsoftclock (void);
280void setsoftcrypto (void);
281void setsoftnet (void);
282void setsofttty (void);
283void setsoftvm (void);
284void setsofttq (void);
285void schedsoftcamnet (void);
286void schedsoftcambio (void);
287void schedsoftnet (void);
288void schedsofttty (void);
289void schedsoftvm (void);
290void schedsofttq (void);
291intrmask_t softclockpending (void);
b153f746 292void splz (void);
984263bc
MD
293#endif /* __i386__ */
294
984263bc
MD
295/*
296 * Various callout lists.
297 */
298
299/* Exit callout list declarations. */
b153f746 300typedef void (*exitlist_fn) (struct thread *td);
984263bc 301
b153f746
RG
302int at_exit (exitlist_fn function);
303int rm_at_exit (exitlist_fn function);
984263bc
MD
304
305/* Fork callout list declarations. */
b153f746
RG
306typedef void (*forklist_fn) (struct proc *parent, struct proc *child,
307 int flags);
984263bc 308
b153f746
RG
309int at_fork (forklist_fn function);
310int rm_at_fork (forklist_fn function);
984263bc
MD
311
312/*
313 * Not exactly a callout LIST, but a callout entry.
314 * Allow an external module to define a hardware watchdog tickler.
315 * Normally a process would do this, but there are times when the
316 * kernel needs to be able to hold off the watchdog, when the process
317 * is not active, e.g., when dumping core.
318 */
b153f746 319typedef void (*watchdog_tickle_fn) (void);
984263bc
MD
320
321extern watchdog_tickle_fn wdog_tickler;
322
323/*
324 * Common `proc' functions are declared here so that proc.h can be included
325 * less often.
326 */
bf765287
MD
327int tsleep (void *, int, const char *, int);
328int msleep (void *, struct spinlock *, int, const char *, int);
16523a43 329void tsleep_interlock (void *chan);
344ad853 330void tstop (struct proc *);
b153f746
RG
331void wakeup (void *chan);
332void wakeup_one (void *chan);
b336a9b1
MD
333void wakeup_mycpu (void *chan);
334void wakeup_mycpu_one (void *chan);
335void wakeup_oncpu (struct globaldata *gd, void *chan);
336void wakeup_oncpu_one (struct globaldata *gd, void *chan);
da5fb9ef
MD
337void wakeup_domain (void *chan, int domain);
338void wakeup_domain_one (void *chan, int domain);
984263bc
MD
339
340/*
b13267a5 341 * Common `cdev_t' stuff are declared here to avoid #include poisoning
984263bc
MD
342 */
343
b13267a5
MD
344int major(cdev_t x);
345int minor(cdev_t x);
346udev_t dev2udev(cdev_t x);
347cdev_t udev2dev(udev_t x, int b);
984263bc
MD
348int uminor(udev_t dev);
349int umajor(udev_t dev);
350udev_t makeudev(int x, int y);
03d6a592
MD
351
352#endif /* _KERNEL */
984263bc 353#endif /* !_SYS_SYSTM_H_ */