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