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/*
* Mach Operating System
* Copyright (C) 1993,1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* (pre-GNU) HISTORY
*
* Revision 2.8 93/03/11 13:46:40 danner
* unsigned long -> unsigned int.
* [93/03/09 danner]
*
* Revision 2.7 92/05/21 17:25:11 jfriedl
* Appended 'U' to constants that would otherwise be signed.
* [92/05/16 jfriedl]
*
* Revision 2.6 91/06/19 11:59:44 rvb
* Second byte of boothowto is flags for "startup" program.
* [91/06/18 rvb]
* Add ifndef __ASSEMBLER__ so that vax_init.s can include it.
* [91/06/11 rvb]
*
* Revision 2.5 91/05/14 17:40:11 mrt
* Correcting copyright
*
* Revision 2.4 91/02/05 17:56:48 mrt
* Changed to new Mach copyright
* [91/02/01 17:49:12 mrt]
*
* Revision 2.3 90/08/27 22:12:56 dbg
* Added definitions used by Mach Kernel: RB_DEBUGGER, RB_UNIPROC,
* RB_NOBOOTRC, RB_ALTBOOT. Moved RB_KDB to 0x04 (Mach value).
* Removed RB_RDONLY, RB_DUMP, RB_NOSYNC.
* [90/08/14 dbg]
*
*/
/*
Copyright (C) 1982, 1986, 1988 Regents of the University of California.
All rights reserved.
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.
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.*/
/*
* @(#)reboot.h 7.5 (Berkeley) 6/27/88
*/
#ifndef _SYS_REBOOT_H_
#define _SYS_REBOOT_H_
#include <features.h>
/*
* Arguments to reboot system call.
* These are converted to switches, and passed to startup program,
* and on to init.
*/
#define RB_AUTOBOOT 0 /* flags for system auto-booting itself */
#define RB_ASKNAME 0x01 /* -a: ask for file name to reboot from */
#define RB_SINGLE 0x02 /* -s: reboot to single user only */
#define RB_KDB 0x04 /* -d: kernel debugger symbols loaded */
#define RB_HALT 0x08 /* -h: enter KDB at bootup */
/* for host_reboot(): don't reboot,
just halt */
#define RB_INITNAME 0x10 /* -i: name given for /etc/init (unused) */
#define RB_DFLTROOT 0x20 /* use compiled-in rootdev */
#define RB_NOBOOTRC 0x20 /* -b: don't run /etc/rc.boot */
#define RB_ALTBOOT 0x40 /* use /boot.old vs /boot */
#define RB_UNIPROC 0x80 /* -u: start only one processor */
#define RB_SHIFT 8 /* second byte is for ux */
#define RB_DEBUGGER 0x1000 /* for host_reboot(): enter kernel
debugger from user level */
/*
* Constants for converting boot-style device number to type,
* adaptor (uba, mba, etc), unit number and partition number.
* Type (== major device number) is in the low byte
* for backward compatibility. Except for that of the "magic
* number", each mask applies to the shifted value.
* Format:
* (4) (4) (4) (4) (8) (8)
* --------------------------------
* |MA | AD| CT| UN| PART | TYPE |
* --------------------------------
*/
#define B_ADAPTORSHIFT 24
#define B_ADAPTORMASK 0x0f
#define B_ADAPTOR(val) (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK)
#define B_CONTROLLERSHIFT 20
#define B_CONTROLLERMASK 0xf
#define B_CONTROLLER(val) (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK)
#define B_UNITSHIFT 16
#define B_UNITMASK 0xf
#define B_UNIT(val) (((val) >> B_UNITSHIFT) & B_UNITMASK)
#define B_PARTITIONSHIFT 8
#define B_PARTITIONMASK 0xff
#define B_PARTITION(val) (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK)
#define B_TYPESHIFT 0
#define B_TYPEMASK 0xff
#define B_TYPE(val) (((val) >> B_TYPESHIFT) & B_TYPEMASK)
#define B_MAGICMASK 0xf0000000U
#define B_DEVMAGIC 0xa0000000U
#define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \
(((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \
((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \
((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)
#ifdef KERNEL
#ifndef __ASSEMBLER__
extern int boothowto;
#endif /* __ASSEMBLER__ */
#endif
__BEGIN_DECLS
/* Reboot or halt the system. */
extern int reboot (int __howto) __THROW;
__END_DECLS
#endif /* _SYS_REBOOT_H_ */
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