forked from Minki/linux
1da177e4c3
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!
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/*
|
|
* 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 */
|