Annotation of sys/sys/reboot.h, Revision 1.1.1.1
1.1 nbrk 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 */
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