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      1 /*	$NetBSD: reboot.h,v 1.26 2020/01/01 22:57:17 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1982, 1986, 1988, 1993, 1994
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *	@(#)reboot.h	8.3 (Berkeley) 12/13/94
     32  */
     33 
     34 #ifndef _SYS_REBOOT_H_
     35 #define _SYS_REBOOT_H_
     36 
     37 /*
     38  * Arguments to reboot system call.  These are passed to the boot program,
     39  * and then on to init.
     40  */
     41 #define	RB_AUTOBOOT	0	/* flags for system auto-booting itself */
     42 
     43 #define	RB_ASKNAME	0x00000001	/* ask for file name to reboot from */
     44 #define	RB_SINGLE	0x00000002	/* reboot to single user only */
     45 #define	RB_NOSYNC	0x00000004	/* dont sync before reboot */
     46 #define	RB_HALT		0x00000008	/* don't reboot, just halt */
     47 #define	RB_INITNAME	0x00000010	/* name given for /etc/init (unused) */
     48 #define	__RB_UNUSED1	0x00000020	/* was RB_DFLTROOT, obsolete */
     49 #define	RB_KDB		0x00000040	/* give control to kernel debugger */
     50 #define	RB_RDONLY	0x00000080	/* mount root fs read-only */
     51 #define	RB_DUMP		0x00000100	/* dump kernel memory before reboot */
     52 #define	RB_MINIROOT	0x00000200	/* mini-root present in memory */
     53 #define	RB_STRING	0x00000400	/* use provided bootstr */
     54 #define	RB_POWERDOWN	(RB_HALT|0x800) /* turn power off (or at least halt) */
     55 #define RB_USERCONF	0x00001000	/* change configured devices */
     56 
     57 /*
     58  * Extra autoboot flags (passed by boot prog to kernel). See also
     59  * macros bootverbose, bootquiet in <sys/systm.h>.
     60  */
     61 #define	AB_NORMAL	0x00000000	/* boot normally (default) */
     62 #define	AB_QUIET	0x00010000 	/* boot quietly */
     63 #define	AB_VERBOSE	0x00020000	/* boot verbosely */
     64 #define	AB_SILENT	0x00040000	/* boot silently */
     65 #define	AB_DEBUG	0x00080000	/* boot with debug messages */
     66 
     67 /*
     68  * The top 4 bits are architecture specific and are used to
     69  * pass information between the bootblocks and the machine
     70  * initialization code.
     71  */
     72 #define	RB_MD1		0x10000000
     73 #define	RB_MD2		0x20000000
     74 #define	RB_MD3		0x40000000
     75 #define	RB_MD4		0x80000000
     76 
     77 /*
     78  * Constants for converting boot-style device number to type,
     79  * adaptor (uba, mba, etc), unit number and partition number.
     80  * Type (== major device number) is in the low byte
     81  * for backward compatibility.  Except for that of the "magic
     82  * number", each mask applies to the shifted value.
     83  * Format:
     84  *	 (4) (4) (4) (4)  (8)     (8)
     85  *	--------------------------------
     86  *	|MA | AD| CT| UN| PART  | TYPE |
     87  *	--------------------------------
     88  */
     89 #define	B_ADAPTORSHIFT		24
     90 #define	B_ADAPTORMASK		0x0f
     91 #define	B_ADAPTOR(val)		(((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK)
     92 #define B_CONTROLLERSHIFT	20
     93 #define B_CONTROLLERMASK	0xf
     94 #define	B_CONTROLLER(val)	(((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK)
     95 #define B_UNITSHIFT		16
     96 #define B_UNITMASK		0xf
     97 #define	B_UNIT(val)		(((val) >> B_UNITSHIFT) & B_UNITMASK)
     98 #define B_PARTITIONSHIFT	8
     99 #define B_PARTITIONMASK		0xff
    100 #define	B_PARTITION(val)	(((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK)
    101 #define	B_TYPESHIFT		0
    102 #define	B_TYPEMASK		0xff
    103 #define	B_TYPE(val)		(((val) >> B_TYPESHIFT) & B_TYPEMASK)
    104 
    105 #define	B_MAGICMASK	0xf0000000
    106 #define	B_DEVMAGIC	0xa0000000
    107 
    108 #define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \
    109 	(((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \
    110 	((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \
    111 	((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)
    112 
    113 #ifdef _KERNEL
    114 
    115 __BEGIN_DECLS
    116 
    117 void	kern_reboot(int, char *) __dead;
    118 void	cpu_reboot(int, char *) __dead;
    119 
    120 __END_DECLS
    121 
    122 #endif /* _KERNEL */
    123 
    124 #endif /* !_SYS_REBOOT_H_ */
    125