diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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 00000000000..f55e7cb48f4 --- /dev/null +++ b/include/asm-ppc64/bootinfo.h @@ -0,0 +1,70 @@ +/* + * Non-machine dependent bootinfo structure. Basic idea + * borrowed from the m68k. + * + * Copyright (C) 1999 Cort Dougan <cort@ppc.kernel.org> + * Copyright (c) 2001 PPC64 Team, IBM Corp + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + + +#ifndef _PPC64_BOOTINFO_H +#define _PPC64_BOOTINFO_H + +#include <asm/types.h> + +/* We use a u32 for the type of the fields since they're written by + * the bootloader which is a 32-bit process and read by the kernel + * which is a 64-bit process. This way they can both agree on the + * size of the type. + */ +typedef u32 bi_rec_field; + +struct bi_record { + bi_rec_field tag; /* tag ID */ + bi_rec_field size; /* size of record (in bytes) */ + bi_rec_field data[0]; /* data */ +}; + +#define BI_FIRST 0x1010 /* first record - marker */ +#define BI_LAST 0x1011 /* last record - marker */ +#define BI_CMD_LINE 0x1012 +#define BI_BOOTLOADER_ID 0x1013 +#define BI_INITRD 0x1014 +#define BI_SYSMAP 0x1015 +#define BI_MACHTYPE 0x1016 + +static __inline__ struct bi_record * bi_rec_init(unsigned long addr) +{ + struct bi_record *bi_recs; + bi_recs = (struct bi_record *)_ALIGN(addr, PAGE_SIZE); + bi_recs->size = 0; + return bi_recs; +} + +static __inline__ struct bi_record * bi_rec_alloc(struct bi_record *rec, + unsigned long args) +{ + rec = (struct bi_record *)((unsigned long)rec + rec->size); + rec->size = sizeof(struct bi_record) + args*sizeof(bi_rec_field); + return rec; +} + +static __inline__ struct bi_record * bi_rec_alloc_bytes(struct bi_record *rec, + unsigned long bytes) +{ + rec = (struct bi_record *)((unsigned long)rec + rec->size); + rec->size = sizeof(struct bi_record) + bytes; + return rec; +} + +static __inline__ struct bi_record * bi_rec_next(struct bi_record *rec) +{ + return (struct bi_record *)((unsigned long)rec + rec->size); +} + +#endif /* _PPC64_BOOTINFO_H */ |