diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ppc64/bootinfo.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-ppc64/bootinfo.h')
-rw-r--r-- | include/asm-ppc64/bootinfo.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/include/asm-ppc64/bootinfo.h b/include/asm-ppc64/bootinfo.h new file mode 100644 index 000000000000..f55e7cb48f46 --- /dev/null +++ b/include/asm-ppc64/bootinfo.h | |||
@@ -0,0 +1,70 @@ | |||
1 | /* | ||
2 | * Non-machine dependent bootinfo structure. Basic idea | ||
3 | * borrowed from the m68k. | ||
4 | * | ||
5 | * Copyright (C) 1999 Cort Dougan <cort@ppc.kernel.org> | ||
6 | * Copyright (c) 2001 PPC64 Team, IBM Corp | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or | ||
9 | * modify it under the terms of the GNU General Public License | ||
10 | * as published by the Free Software Foundation; either version | ||
11 | * 2 of the License, or (at your option) any later version. | ||
12 | */ | ||
13 | |||
14 | |||
15 | #ifndef _PPC64_BOOTINFO_H | ||
16 | #define _PPC64_BOOTINFO_H | ||
17 | |||
18 | #include <asm/types.h> | ||
19 | |||
20 | /* We use a u32 for the type of the fields since they're written by | ||
21 | * the bootloader which is a 32-bit process and read by the kernel | ||
22 | * which is a 64-bit process. This way they can both agree on the | ||
23 | * size of the type. | ||
24 | */ | ||
25 | typedef u32 bi_rec_field; | ||
26 | |||
27 | struct bi_record { | ||
28 | bi_rec_field tag; /* tag ID */ | ||
29 | bi_rec_field size; /* size of record (in bytes) */ | ||
30 | bi_rec_field data[0]; /* data */ | ||
31 | }; | ||
32 | |||
33 | #define BI_FIRST 0x1010 /* first record - marker */ | ||
34 | #define BI_LAST 0x1011 /* last record - marker */ | ||
35 | #define BI_CMD_LINE 0x1012 | ||
36 | #define BI_BOOTLOADER_ID 0x1013 | ||
37 | #define BI_INITRD 0x1014 | ||
38 | #define BI_SYSMAP 0x1015 | ||
39 | #define BI_MACHTYPE 0x1016 | ||
40 | |||
41 | static __inline__ struct bi_record * bi_rec_init(unsigned long addr) | ||
42 | { | ||
43 | struct bi_record *bi_recs; | ||
44 | bi_recs = (struct bi_record *)_ALIGN(addr, PAGE_SIZE); | ||
45 | bi_recs->size = 0; | ||
46 | return bi_recs; | ||
47 | } | ||
48 | |||
49 | static __inline__ struct bi_record * bi_rec_alloc(struct bi_record *rec, | ||
50 | unsigned long args) | ||
51 | { | ||
52 | rec = (struct bi_record *)((unsigned long)rec + rec->size); | ||
53 | rec->size = sizeof(struct bi_record) + args*sizeof(bi_rec_field); | ||
54 | return rec; | ||
55 | } | ||
56 | |||
57 | static __inline__ struct bi_record * bi_rec_alloc_bytes(struct bi_record *rec, | ||
58 | unsigned long bytes) | ||
59 | { | ||
60 | rec = (struct bi_record *)((unsigned long)rec + rec->size); | ||
61 | rec->size = sizeof(struct bi_record) + bytes; | ||
62 | return rec; | ||
63 | } | ||
64 | |||
65 | static __inline__ struct bi_record * bi_rec_next(struct bi_record *rec) | ||
66 | { | ||
67 | return (struct bi_record *)((unsigned long)rec + rec->size); | ||
68 | } | ||
69 | |||
70 | #endif /* _PPC64_BOOTINFO_H */ | ||