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authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
commit28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch)
tree15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/mach/sys/reboot.h
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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.
+ */
+/*
+ * HISTORY
+ * $Log$
+ * Revision 1.1 1993/08/03 22:25:15 roland
+ * entered into RCS
+ *
+ * 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_ */