1 /* $OpenBSD: reboot.h,v 1.13 2004/03/10 23:02:53 tom Exp $ */ 2 /* $NetBSD: reboot.h,v 1.9 1996/04/22 01:23:25 christos Exp $ */ 3 4 /* 5 * Copyright (c) 1982, 1986, 1988, 1993, 1994 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)reboot.h 8.2 (Berkeley) 7/10/94 33 */ 34 35 /* 36 * Arguments to reboot system call. These are passed to the boot program, 37 * and then on to init. 38 */ 39 #define RB_AUTOBOOT 0 /* flags for system auto-booting itself */ 40 41 #define RB_ASKNAME 0x0001 /* ask for file name to reboot from */ 42 #define RB_SINGLE 0x0002 /* reboot to single user only */ 43 #define RB_NOSYNC 0x0004 /* dont sync before reboot */ 44 #define RB_HALT 0x0008 /* don't reboot, just halt */ 45 #define RB_INITNAME 0x0010 /* name given for /etc/init (unused) */ 46 #define RB_DFLTROOT 0x0020 /* use compiled-in rootdev */ 47 #define RB_KDB 0x0040 /* give control to kernel debugger */ 48 #define RB_RDONLY 0x0080 /* mount root fs read-only */ 49 #define RB_DUMP 0x0100 /* dump kernel memory before reboot */ 50 #define RB_MINIROOT 0x0200 /* mini-root present in memory at boot time */ 51 #define RB_CONFIG 0x0400 /* change configured devices */ 52 #define RB_TIMEBAD 0x0800 /* don't call resettodr() in boot() */ 53 #define RB_POWERDOWN 0x1000 /* attempt to power down machine */ 54 #define RB_SERCONS 0x2000 /* use serial console if available */ 55 #define RB_USERREQ 0x4000 /* boot() called at user request (e.g. ddb) */ 56 57 /* 58 * Constants for converting boot-style device number to type, 59 * adaptor (uba, mba, etc), unit number and partition number. 60 * Type (== major device number) is in the low byte 61 * for backward compatibility. Except for that of the "magic 62 * number", each mask applies to the shifted value. 63 * Format: 64 * (4) (4) (4) (4) (8) (8) 65 * -------------------------------- 66 * |MA | AD| CT| UN| PART | TYPE | 67 * -------------------------------- 68 */ 69 #define B_ADAPTORSHIFT 24 70 #define B_ADAPTORMASK 0x0f 71 #define B_ADAPTOR(val) (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK) 72 #define B_CONTROLLERSHIFT 20 73 #define B_CONTROLLERMASK 0xf 74 #define B_CONTROLLER(val) (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK) 75 #define B_UNITSHIFT 16 76 #define B_UNITMASK 0xf 77 #define B_UNIT(val) (((val) >> B_UNITSHIFT) & B_UNITMASK) 78 #define B_PARTITIONSHIFT 8 79 #define B_PARTITIONMASK 0xff 80 #define B_PARTITION(val) (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK) 81 #define B_TYPESHIFT 0 82 #define B_TYPEMASK 0xff 83 #define B_TYPE(val) (((val) >> B_TYPESHIFT) & B_TYPEMASK) 84 85 #define B_MAGICMASK 0xf0000000 86 #define B_DEVMAGIC 0xa0000000 87 88 #define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \ 89 (((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \ 90 ((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \ 91 ((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC) 92 93 #if defined(_KERNEL) && !defined(_STANDALONE) && !defined(_LOCORE) 94 95 __BEGIN_DECLS 96 97 void boot(int) 98 __attribute__((__noreturn__)); 99 100 __END_DECLS 101 102 #endif /* _KERNEL */ 103