File: [local] / sys / sys / systm.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:16:14 2008 UTC (16 years, 3 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: systm.h,v 1.72 2007/06/01 19:25:08 deraadt Exp $ */
/* $NetBSD: systm.h,v 1.50 1996/06/09 04:55:09 briggs Exp $ */
/*-
* Copyright (c) 1982, 1988, 1991, 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. 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.
*
* @(#)systm.h 8.4 (Berkeley) 2/23/94
*/
#ifndef __SYSTM_H__
#define __SYSTM_H__
#include <sys/queue.h>
#include <sys/stdarg.h>
/*
* The `securelevel' variable controls the security level of the system.
* It can only be decreased by process 1 (/sbin/init).
*
* Security levels are as follows:
* -1 permanently insecure mode - always run system in level 0 mode.
* 0 insecure mode - immutable and append-only flags may be turned off.
* All devices may be read or written subject to permission modes.
* 1 secure mode - immutable and append-only flags may not be changed;
* raw disks of mounted filesystems, /dev/mem, and /dev/kmem are
* read-only.
* 2 highly secure mode - same as (1) plus raw disks are always
* read-only whether mounted or not. This level precludes tampering
* with filesystems by unmounting them, but also inhibits running
* newfs while the system is secured.
*
* In normal operation, the system runs in level 0 mode while single user
* and in level 1 mode while multiuser. If level 2 mode is desired while
* running multiuser, it can be set in the multiuser startup script
* (/etc/rc.local) using sysctl(1). If it is desired to run the system
* in level 0 mode while multiuser, initialize the variable securelevel
* in /sys/kern/kern_sysctl.c to -1. Note that it is NOT initialized to
* zero as that would allow the vmunix binary to be patched to -1.
* Without initialization, securelevel loads in the BSS area which only
* comes into existence when the kernel is loaded and hence cannot be
* patched by a stalking hacker.
*/
extern int securelevel; /* system security level */
extern const char *panicstr; /* panic message */
extern const char version[]; /* system version */
extern const char copyright[]; /* system copyright */
extern const char ostype[];
extern const char osversion[];
extern const char osrelease[];
extern int cold; /* cold start flag initialized in locore */
extern int ncpus; /* number of CPUs */
extern int nblkdev; /* number of entries in bdevsw */
extern int nchrdev; /* number of entries in cdevsw */
extern int selwait; /* select timeout address */
#ifdef MULTIPROCESSOR
#define curpriority (curcpu()->ci_schedstate.spc_curpriority)
#else
extern u_char curpriority; /* priority of current process */
#endif
extern int maxmem; /* max memory per process */
extern int physmem; /* physical memory */
extern dev_t dumpdev; /* dump device */
extern long dumplo; /* offset into dumpdev */
extern dev_t rootdev; /* root device */
extern struct vnode *rootvp; /* vnode equivalent to above */
extern dev_t swapdev; /* swapping device */
extern struct vnode *swapdev_vp;/* vnode equivalent to above */
struct proc;
typedef int sy_call_t(struct proc *, void *, register_t *);
extern struct sysent { /* system call table */
short sy_narg; /* number of args */
short sy_argsize; /* total size of arguments */
sy_call_t *sy_call; /* implementing function */
} sysent[];
#if _BYTE_ORDER == _BIG_ENDIAN
#define SCARG(p, k) ((p)->k.be.datum) /* get arg from args pointer */
#elif _BYTE_ORDER == _LITTLE_ENDIAN
#define SCARG(p, k) ((p)->k.le.datum) /* get arg from args pointer */
#else
#error "what byte order is this machine?"
#endif
#if defined(_KERNEL) && defined(SYSCALL_DEBUG)
void scdebug_call(struct proc *p, register_t code, register_t retval[]);
void scdebug_ret(struct proc *p, register_t code, int error, register_t retval[]);
#endif /* _KERNEL && SYSCALL_DEBUG */
extern int boothowto; /* reboot flags, from console subsystem */
extern void (*v_putc)(int); /* Virtual console putc routine */
/*
* General function declarations.
*/
int nullop(void *);
int enodev(void);
int enosys(void);
int enoioctl(void);
int enxio(void);
int eopnotsupp(void *);
int lkmenodev(void);
struct vnodeopv_desc;
void vfs_opv_init(void);
void vfs_opv_init_explicit(struct vnodeopv_desc *);
void vfs_opv_init_default(struct vnodeopv_desc *);
void vfs_op_init(void);
int seltrue(dev_t dev, int which, struct proc *);
void *hashinit(int, int, int, u_long *);
int sys_nosys(struct proc *, void *, register_t *);
void panic(const char *, ...)
__attribute__((__noreturn__,__format__(__kprintf__,1,2)));
void __assert(const char *, const char *, int, const char *)
__attribute__((__noreturn__));
int printf(const char *, ...)
__attribute__((__format__(__kprintf__,1,2)));
void uprintf(const char *, ...)
__attribute__((__format__(__kprintf__,1,2)));
int vprintf(const char *, va_list);
int vsnprintf(char *, size_t, const char *, va_list);
int snprintf(char *buf, size_t, const char *, ...)
__attribute__((__format__(__kprintf__,3,4)));
struct tty;
void ttyprintf(struct tty *, const char *, ...)
__attribute__((__format__(__kprintf__,2,3)));
void splassert_fail(int, int, const char *);
extern int splassert_ctl;
void tablefull(const char *);
int kcopy(const void *, void *, size_t)
__attribute__ ((__bounded__(__buffer__,1,3)))
__attribute__ ((__bounded__(__buffer__,2,3)));
void bcopy(const void *, void *, size_t)
__attribute__ ((__bounded__(__buffer__,1,3)))
__attribute__ ((__bounded__(__buffer__,2,3)));
void ovbcopy(const void *, void *, size_t)
__attribute__ ((__bounded__(__buffer__,1,3)))
__attribute__ ((__bounded__(__buffer__,2,3)));
void bzero(void *, size_t)
__attribute__ ((__bounded__(__buffer__,1,2)));
int bcmp(const void *, const void *, size_t);
void *memcpy(void *, const void *, size_t)
__attribute__ ((__bounded__(__buffer__,1,3)))
__attribute__ ((__bounded__(__buffer__,2,3)));
void *memmove(void *, const void *, size_t)
__attribute__ ((__bounded__(__buffer__,1,3)))
__attribute__ ((__bounded__(__buffer__,2,3)));
void *memset(void *, int, size_t)
__attribute__ ((__bounded__(__buffer__,1,3)));
int copystr(const void *, void *, size_t, size_t *)
__attribute__ ((__bounded__(__string__,2,3)));
int copyinstr(const void *, void *, size_t, size_t *)
__attribute__ ((__bounded__(__string__,2,3)));
int copyoutstr(const void *, void *, size_t, size_t *);
int copyin(const void *, void *, size_t)
__attribute__ ((__bounded__(__buffer__,2,3)));
int copyout(const void *, void *, size_t);
struct timeval;
int hzto(struct timeval *);
int tvtohz(struct timeval *);
void realitexpire(void *);
struct clockframe;
void hardclock(struct clockframe *);
void softclock(void);
void statclock(struct clockframe *);
void initclocks(void);
void inittodr(time_t);
void resettodr(void);
void cpu_initclocks(void);
void startprofclock(struct proc *);
void stopprofclock(struct proc *);
void setstatclockrate(int);
void wdog_register(void *, int (*)(void *, int));
/*
* Startup/shutdown hooks. Startup hooks are functions running after
* the scheduler has started but before any threads have been created
* or root has been mounted. The shutdown hooks are functions to be run
* with all interrupts disabled immediately before the system is
* halted or rebooted.
*/
struct hook_desc {
TAILQ_ENTRY(hook_desc) hd_list;
void (*hd_fn)(void *);
void *hd_arg;
};
TAILQ_HEAD(hook_desc_head, hook_desc);
extern struct hook_desc_head shutdownhook_list, startuphook_list,
mountroothook_list;
void *hook_establish(struct hook_desc_head *, int, void (*)(void *), void *);
void hook_disestablish(struct hook_desc_head *, void *);
void dohooks(struct hook_desc_head *, int);
#define HOOK_REMOVE 0x01
#define HOOK_FREE 0x02
#define startuphook_establish(fn, arg) \
hook_establish(&startuphook_list, 1, (fn), (arg))
#define startuphook_disestablish(vhook) \
hook_disestablish(&startuphook_list, (vhook))
#define dostartuphooks() dohooks(&startuphook_list, HOOK_REMOVE|HOOK_FREE)
#define shutdownhook_establish(fn, arg) \
hook_establish(&shutdownhook_list, 0, (fn), (arg))
#define shutdownhook_disestablish(vhook) \
hook_disestablish(&shutdownhook_list, (vhook))
#define doshutdownhooks() dohooks(&shutdownhook_list, HOOK_REMOVE)
#define mountroothook_establish(fn, arg) \
hook_establish(&mountroothook_list, 0, (fn), (arg))
#define mountroothook_disestablish(vhook) \
hook_disestablish(&mountroothook_list, (vhook))
#define domountroothooks() dohooks(&mountroothook_list, HOOK_REMOVE|HOOK_FREE)
/*
* Power management hooks.
*/
void *powerhook_establish(void (*)(int, void *), void *);
void powerhook_disestablish(void *);
void dopowerhooks(int);
#define PWR_RESUME 0
#define PWR_SUSPEND 1
#define PWR_STANDBY 2
struct uio;
int uiomove(void *, int, struct uio *);
#if defined(_KERNEL)
int setjmp(label_t *);
void longjmp(label_t *);
#endif
void consinit(void);
void cpu_startup(void);
void cpu_configure(void);
void diskconf(void);
#ifdef GPROF
void kmstartup(void);
#endif
int nfs_mountroot(void);
int dk_mountroot(void);
extern int (*mountroot)(void);
#include <lib/libkern/libkern.h>
#if defined(DDB) || defined(KGDB)
/* debugger entry points */
void Debugger(void); /* in DDB only */
int read_symtab_from_file(struct proc *,struct vnode *,const char *);
#endif
#ifdef BOOT_CONFIG
void user_config(void);
#endif
#if defined(MULTIPROCESSOR)
void _kernel_lock_init(void);
void _kernel_lock(void);
void _kernel_unlock(void);
void _kernel_proc_lock(struct proc *);
void _kernel_proc_unlock(struct proc *);
#define KERNEL_LOCK_INIT() _kernel_lock_init()
#define KERNEL_LOCK() _kernel_lock()
#define KERNEL_UNLOCK() _kernel_unlock()
#define KERNEL_PROC_LOCK(p) _kernel_proc_lock((p))
#define KERNEL_PROC_UNLOCK(p) _kernel_proc_unlock((p))
#else /* ! MULTIPROCESSOR */
#define KERNEL_LOCK_INIT() /* nothing */
#define KERNEL_LOCK() /* nothing */
#define KERNEL_UNLOCK() /* nothing */
#define KERNEL_PROC_LOCK(p) /* nothing */
#define KERNEL_PROC_UNLOCK(p) /* nothing */
#endif /* MULTIPROCESSOR */
#endif /* __SYSTM_H__ */