include/asm-ppc/bootinfo.h

/*
 * Non-machine dependent bootinfo structure.  Basic idea
 * borrowed from the m68k.
 *
 * Copyright (C) 1999 Cort Dougan <cort@ppc.kernel.org>
 */

#ifdef __KERNEL__
#ifndef _PPC_BOOTINFO_H
#define _PPC_BOOTINFO_H

#include <asm/page.h>

struct bi_record {
	unsigned long tag;		/* tag ID */
	unsigned long size;		/* size of record (in bytes) */
	unsigned long 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
#define BI_MEMSIZE		0x1017
#define BI_BOARD_INFO		0x1018

extern struct bi_record *find_bootinfo(void);
extern void bootinfo_init(struct bi_record *rec);
extern void bootinfo_append(unsigned long tag, unsigned long size, void * data);
extern void parse_bootinfo(struct bi_record *rec);
extern unsigned long boot_mem_size;

static inline struct bi_record *
bootinfo_addr(unsigned long offset)
{

	return (struct bi_record *)_ALIGN((offset) + (1 << 20) - 1,
					  (1 << 20));
}


#endif /* _PPC_BOOTINFO_H */
#endif /* __KERNEL__ */