1178172Simp/*- 2178172Simp * Copyright (C) 1994 by Rodney W. Grimes, Milwaukie, Oregon 97222 3178172Simp * All rights reserved. 4178172Simp * 5178172Simp * Redistribution and use in source and binary forms, with or without 6178172Simp * modification, are permitted provided that the following conditions 7178172Simp * are met: 8178172Simp * 1. Redistributions of source code must retain the above copyright 9178172Simp * notice, this list of conditions and the following disclaimer as 10178172Simp * the first lines of this file unmodified. 11178172Simp * 2. Redistributions in binary form must reproduce the above copyright 12178172Simp * notice, this list of conditions and the following disclaimer in the 13178172Simp * documentation and/or other materials provided with the distribution. 14178172Simp * 3. All advertising materials mentioning features or use of this software 15178172Simp * must display the following acknowledgement: 16178172Simp * This product includes software developed by Rodney W. Grimes. 17178172Simp * 4. The name of the author may not be used to endorse or promote products 18178172Simp * derived from this software without specific prior written permission. 19178172Simp * 20178172Simp * THIS SOFTWARE IS PROVIDED BY RODNEY W. GRIMES ``AS IS'' AND 21178172Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22178172Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23178172Simp * ARE DISCLAIMED. IN NO EVENT SHALL RODNEY W. GRIMES BE LIABLE 24178172Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25178172Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26178172Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27178172Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28178172Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29178172Simp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30178172Simp * SUCH DAMAGE. 31178172Simp * 32178172Simp * $FreeBSD$ 33178172Simp */ 34178172Simp 35178172Simp#ifndef _MACHINE_BOOTINFO_H_ 36178172Simp#define _MACHINE_BOOTINFO_H_ 37178172Simp 38178172Simp/* Only change the version number if you break compatibility. */ 39178172Simp#define BOOTINFO_VERSION 1 40178172Simp 41178172Simp#define N_BIOS_GEOM 8 42178172Simp 43178172Simp#define MIPS_BOOTINFO_MAGIC 0xCDEACDEA 44178172Simp 45178172Simp/* Extended OLV bootinfo struct. The data area includes a list of named 46178172Simp OIDs and associated data values. The format is: 47178172Simp 48178172Simp NUL-terminated dotted-string name 49178172Simp 2 byte length, in big-endian order 50178172Simp LENGTH bytes of data 51178172Simp [...] 52178172Simp 53178172Simp The two magic fields are used to guard against other bootloaders that 54178172Simp may place other sorts of data here. */ 55178172Simp 56178172Simpstruct bootinfo_ext { 57178172Simp#define BOOTINFO_EXT_MAGIC1 0x55aa00ff 58178172Simp unsigned int magic1; 59178172Simp unsigned char *data; 60178172Simp unsigned int size; 61178172Simp#define BOOTINFO_EXT_MAGIC2 0x32719187 62178172Simp unsigned int magic2; 63178172Simp}; 64178172Simp 65178172Simp#define BOOTINFO_EXT_MAX_SIZE 16384 66178172Simp 67178172Simp/* 68178172Simp * A zero bootinfo field often means that there is no info available. 69178172Simp * Flags are used to indicate the validity of fields where zero is a 70178172Simp * normal value. 71178172Simp */ 72178172Simpstruct bootinfo { 73178172Simp u_int32_t bi_version; 74178172Simp u_int32_t bi_kernelname; /* represents a char * */ 75178172Simp u_int32_t bi_nfs_diskless; /* struct nfs_diskless * */ 76178172Simp /* End of fields that are always present. */ 77178172Simp#define bi_endcommon bi_n_bios_used 78178172Simp u_int32_t bi_n_bios_used; 79178172Simp u_int32_t bi_bios_geom[N_BIOS_GEOM]; 80178172Simp u_int32_t bi_size; 81178172Simp u_int8_t bi_memsizes_valid; 82178172Simp u_int8_t bi_bios_dev; /* bootdev BIOS unit number */ 83178172Simp u_int8_t bi_pad[2]; 84178172Simp u_int32_t bi_basemem; 85178172Simp u_int32_t bi_extmem; 86178172Simp u_int32_t bi_symtab; /* struct symtab * */ 87178172Simp u_int32_t bi_esymtab; /* struct symtab * */ 88178172Simp /* Items below only from advanced bootloader */ 89178172Simp u_int32_t bi_kernend; /* end of kernel space */ 90178172Simp u_int32_t bi_envp; /* environment */ 91178172Simp u_int32_t bi_modulep; /* preloaded modules */ 92178172Simp}; 93178172Simp 94178172Simp#ifdef _KERNEL 95178172Simpextern struct bootinfo bootinfo; 96178172Simp#endif 97178172Simp 98178172Simp/* 99178172Simp * Constants for converting boot-style device number to type, 100178172Simp * adaptor (uba, mba, etc), unit number and partition number. 101178172Simp * Type (== major device number) is in the low byte 102178172Simp * for backward compatibility. Except for that of the "magic 103178172Simp * number", each mask applies to the shifted value. 104178172Simp * Format: 105178172Simp * (4) (4) (4) (4) (8) (8) 106178172Simp * -------------------------------- 107178172Simp * |MA | AD| CT| UN| PART | TYPE | 108178172Simp * -------------------------------- 109178172Simp */ 110178172Simp#define B_ADAPTORSHIFT 24 111178172Simp#define B_ADAPTORMASK 0x0f 112178172Simp#define B_ADAPTOR(val) (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK) 113178172Simp#define B_CONTROLLERSHIFT 20 114178172Simp#define B_CONTROLLERMASK 0xf 115178172Simp#define B_CONTROLLER(val) (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK) 116178172Simp#define B_SLICESHIFT 20 117178172Simp#define B_SLICEMASK 0xff 118178172Simp#define B_SLICE(val) (((val)>>B_SLICESHIFT) & B_SLICEMASK) 119178172Simp#define B_UNITSHIFT 16 120178172Simp#define B_UNITMASK 0xf 121178172Simp#define B_UNIT(val) (((val) >> B_UNITSHIFT) & B_UNITMASK) 122178172Simp#define B_PARTITIONSHIFT 8 123178172Simp#define B_PARTITIONMASK 0xff 124178172Simp#define B_PARTITION(val) (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK) 125178172Simp#define B_TYPESHIFT 0 126178172Simp#define B_TYPEMASK 0xff 127178172Simp#define B_TYPE(val) (((val) >> B_TYPESHIFT) & B_TYPEMASK) 128178172Simp 129178172Simp#define B_MAGICMASK 0xf0000000 130178172Simp#define B_DEVMAGIC 0xa0000000 131178172Simp 132178172Simp#define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \ 133178172Simp (((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \ 134178172Simp ((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \ 135178172Simp ((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC) 136178172Simp 137178172Simp#define BASE_SLICE 2 138178172Simp#define COMPATIBILITY_SLICE 0 139178172Simp#define MAX_SLICES 32 140178172Simp#define WHOLE_DISK_SLICE 1 141178172Simp 142178172Simp#endif /* !_MACHINE_BOOTINFO_H_ */ 143