include/asm-ppc/bootinfo.h

   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  */
   7
   8 #ifdef __KERNEL__
   9 #ifndef _PPC_BOOTINFO_H
  10 #define _PPC_BOOTINFO_H
  11
  12 #include <linux/config.h>
  13 #include <asm/page.h>
  14
  15 #if defined(CONFIG_APUS) && !defined(__BOOTER__)
  16 #include <asm-m68k/bootinfo.h>
  17 #else
  18
  19 struct bi_record {
  20         unsigned long tag;              /* tag ID */
  21         unsigned long size;             /* size of record (in bytes) */
  22         unsigned long data[0];          /* data */
  23 };
  24
  25 #define BI_FIRST                0x1010  /* first record - marker */
  26 #define BI_LAST                 0x1011  /* last record - marker */
  27 #define BI_CMD_LINE             0x1012
  28 #define BI_BOOTLOADER_ID        0x1013
  29 #define BI_INITRD               0x1014
  30 #define BI_SYSMAP               0x1015
  31 #define BI_MACHTYPE             0x1016
  32 #define BI_MEMSIZE              0x1017
  33 #define BI_BOARD_INFO           0x1018
  34
  35 extern struct bi_record *find_bootinfo(void);
  36 extern void bootinfo_init(struct bi_record *rec);
  37 extern void bootinfo_append(unsigned long tag, unsigned long size, void * data);
  38 extern void parse_bootinfo(struct bi_record *rec);
  39 extern unsigned long boot_mem_size;
  40
  41 static inline struct bi_record *
  42 bootinfo_addr(unsigned long offset)
  43 {
  44
  45         return (struct bi_record *)_ALIGN((offset) + (1 << 20) - 1,
  46                                           (1 << 20));
  47 }
  48 #endif /* CONFIG_APUS */
  49
  50
  51 #endif /* _PPC_BOOTINFO_H */
  52 #endif /* __KERNEL__ */