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+/*
+ * Copyright (c) 1982, 1986, 1988, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)reboot.h 8.1 (Berkeley) 6/2/93
+ */
+
+/*
+ * Arguments to reboot system call.
+ * These are passed to boot program in r11,
+ * and on to init.
+ */
+#define RB_AUTOBOOT 0 /* flags for system auto-booting itself */
+
+#define RB_ASKNAME 0x01 /* ask for file name to reboot from */
+#define RB_SINGLE 0x02 /* reboot to single user only */
+#define RB_NOSYNC 0x04 /* dont sync before reboot */
+#define RB_HALT 0x08 /* don't reboot, just halt */
+#define RB_INITNAME 0x10 /* name given for /etc/init (unused) */
+#define RB_DFLTROOT 0x20 /* use compiled-in rootdev */
+#define RB_KDB 0x40 /* give control to kernel debugger */
+#define RB_RDONLY 0x80 /* mount root fs read-only */
+#define RB_DUMP 0x100 /* dump kernel memory before reboot */
+#define RB_MINIROOT 0x200 /* mini-root present in memory at boot time */
+
+/*
+ * 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_long)0xf0000000)
+#define B_DEVMAGIC ((u_long)0xa0000000)
+
+#define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \
+ (((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \
+ ((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \
+ ((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)