1/* $NetBSD: disklabel.h,v 1.6 2017/07/24 10:04:09 mrg Exp $ */
2
3/*
4 * Copyright (c) 1994 Christopher G. Demetriou
5 * 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. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Christopher G. Demetriou.
18 * 4. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * Copyright 2000, 2001
35 * Broadcom Corporation. All rights reserved.
36 *
37 * This software is furnished under license and may be used and copied only
38 * in accordance with the following terms and conditions. Subject to these
39 * conditions, you may download, copy, install, use, modify and distribute
40 * modified or unmodified copies of this software in source and/or binary
41 * form. No title or ownership is transferred hereby.
42 *
43 * 1) Any source code used, modified or distributed must reproduce and
44 * retain this copyright notice and list of conditions as they appear in
45 * the source file.
46 *
47 * 2) No right is granted to use any trade name, trademark, or logo of
48 * Broadcom Corporation. The "Broadcom Corporation" name may not be
49 * used to endorse or promote products derived from this software
50 * without the prior written permission of Broadcom Corporation.
51 *
52 * 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR IMPLIED
53 * WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF
54 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
55 * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM BE LIABLE
56 * FOR ANY DAMAGES WHATSOEVER, AND IN PARTICULAR, BROADCOM SHALL NOT BE
57 * LIABLE FOR DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
58 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
59 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
60 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
61 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
62 * OR OTHERWISE), EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 */
64
65#ifndef _EVBMIPS_DISKLABEL_H_
66#define _EVBMIPS_DISKLABEL_H_
67
68#ifdef _KERNEL_OPT
69#include "opt_pmon.h"
70#include "opt_cputype.h"
71#endif
72
73#ifdef MIPS64_SB1
74
75#define LABELUSESMBR 0 /* no MBR partitionning */
76#define LABELSECTOR 1 /* sector containing label */
77#define LABELOFFSET 0 /* offset of label in sector */
78#define MAXPARTITIONS 16
79#define RAW_PART 3
80
81#ifdef __NetBSD__
82/* Pull in MBR partition definitions. */
83#if HAVE_NBTOOL_CONFIG_H
84#include <nbinclude/sys/bootblock.h>
85#else
86#include <sys/bootblock.h>
87#endif /* HAVE_NBTOOL_CONFIG_H */
88
89#ifndef __ASSEMBLER__
90#if HAVE_NBTOOL_CONFIG_H
91#include <nbinclude/sys/dkbad.h>
92#else
93#include <sys/dkbad.h>
94#endif /* HAVE_NBTOOL_CONFIG_H */
95struct cpu_disklabel {
96 struct mbr_partition mbrparts[MBR_PART_COUNT];
97#define __HAVE_DISKLABEL_DKBAD
98 struct dkbad bad;
99};
100#endif
101#endif
102
103/*
104 * CFE boot block, modeled loosely on Alpha.
105 *
106 * It consists of:
107 *
108 * BSD disk label
109 * <blank space>
110 * Boot block info (5 uint_64s)
111 *
112 * The boot block portion looks like:
113 *
114 *
115 * +-------+-------+-------+-------+-------+-------+-------+-------+
116 * | BOOT_MAGIC_NUMBER |
117 * +-------+-------+-------+-------+-------+-------+-------+-------+
118 * | Flags | Reserved | Vers | Header Checksum |
119 * +-------+-------+-------+-------+-------+-------+-------+-------+
120 * | Secondary Loader Location (bytes) |
121 * +-------+-------+-------+-------+-------+-------+-------+-------+
122 * | Loader Checksum | Size of loader (bytes) |
123 * +-------+-------+-------+-------+-------+-------+-------+-------+
124 * | Reserved | Architecture Information |
125 * +-------+-------+-------+-------+-------+-------+-------+-------+
126 *
127 * Boot block fields should always be read as 64-bit numbers.
128 *
129 */
130
131
132struct boot_block {
133 uint64_t cfe_bb_data[64]; /* data (disklabel, also as below) */
134};
135#define cfe_bb_magic cfe_bb_data[59] /* magic number */
136#define cfe_bb_hdrinfo cfe_bb_data[60] /* header checksum, ver, flags */
137#define cfe_bb_secstart cfe_bb_data[61] /* secondary start (bytes) */
138#define cfe_bb_secsize cfe_bb_data[62] /* secondary size (bytes) */
139#define cfe_bb_archinfo cfe_bb_data[63] /* architecture info */
140
141#define BOOT_BLOCK_OFFSET 0 /* offset of boot block. */
142#define BOOT_BLOCK_BLOCKSIZE 512 /* block size for sec. size/start,
143 * and for boot block itself
144 */
145#define BOOT_BLOCK_SIZE 40 /* 5 64-bit words */
146
147#define BOOT_MAGIC_NUMBER 0x43465631424f4f54
148#define BOOT_HDR_CHECKSUM_MASK 0x00000000FFFFFFFF
149#define BOOT_HDR_VER_MASK 0x000000FF00000000
150#define BOOT_HDR_VER_SHIFT 32
151#define BOOT_HDR_FLAGS_MASK 0xFF00000000000000
152#define BOOT_SECSIZE_MASK 0x00000000FFFFFFFF
153#define BOOT_DATA_CHECKSUM_MASK 0xFFFFFFFF00000000
154#define BOOT_DATA_CHECKSUM_SHIFT 32
155#define BOOT_ARCHINFO_MASK 0x00000000FFFFFFFF
156
157#define BOOT_HDR_VERSION 1
158
159#define CHECKSUM_BOOT_BLOCK(bb,cksum) \
160 do { \
161 uint32_t *_ptr = (uint32_t *) (bb); \
162 uint32_t _cksum; \
163 int _i; \
164 \
165 _cksum = 0; \
166 for (_i = 0; \
167 _i < (BOOT_BLOCK_SIZE / sizeof (uint32_t)); \
168 _i++) \
169 _cksum += _ptr[_i]; \
170 *(cksum) = _cksum; \
171 } while (0)
172
173
174#define CHECKSUM_BOOT_DATA(data,len,cksum) \
175 do { \
176 uint32_t *_ptr = (uint32_t *) (data); \
177 uint32_t _cksum; \
178 int _i; \
179 \
180 _cksum = 0; \
181 for (_i = 0; \
182 _i < ((len) / sizeof (uint32_t)); \
183 _i++) \
184 _cksum += _ptr[_i]; \
185 *(cksum) = _cksum; \
186 } while (0)
187
188#else /* MIPS64_SB1 */
189
190#ifdef PMON
191#define LABELUSESMBR 1 /* use MBR partitionning */
192#else
193#define LABELUSESMBR 0 /* no MBR partitionning */
194#endif
195#define LABELSECTOR 0 /* sector containing label */
196#define LABELOFFSET 64 /* offset of label in sector */
197#define MAXPARTITIONS 16 /* number of partitions */
198#define RAW_PART 2 /* raw partition: xx?c */
199
200#if HAVE_NBTOOL_CONFIG_H
201#include <nbinclude/sys/dkbad.h>
202#else
203#include <sys/dkbad.h>
204#endif /* HAVE_NBTOOL_CONFIG_H */
205
206/* Just a dummy */
207struct cpu_disklabel {
208#define __HAVE_DISKLABEL_DKBAD
209 struct dkbad bad; /* must have one element. */
210};
211
212#endif /* MIPS64_SB1 */
213
214#endif /* !_EVBMIPS_DISKLABEL_H_ */