about summary refs log tree commit diff
path: root/sysdeps/mach/sys/reboot.h
blob: 1a2a5f56b26f7dd6aff5991152a16bb2a6cd91d5 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
/* 
 * 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.
 */
/*
 * HISTORY
 * $Log$
 * Revision 1.2  1998/05/29 10:19:59  drepper
 * Use __ASSEMBLER__ test macro not ASSEMBLER.
 *
 * Revision 1.1  1993/08/03 22:25:15  roland
 * entered into RCS
 *
 * Revision 2.8  93/03/11  13:46:40  danner
 * 	u_long -> u_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 are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *	@(#)reboot.h	7.5 (Berkeley) 6/27/88
 */

#ifndef	_SYS_REBOOT_H_
#define	_SYS_REBOOT_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	((u_int)0xf0000000U)
#define	B_DEVMAGIC	((u_int)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

#endif	/* _SYS_REBOOT_H_ */