include/asm-i386/setup.h

   1 /*
   2  *      Just a place holder. We don't want to have to test x86 before
   3  *      we include stuff
   4  */
   5
   6 #ifndef _i386_SETUP_H
   7 #define _i386_SETUP_H
   8
   9 #ifdef __KERNEL__
  10 #include <linux/pfn.h>
  11
  12 /*
  13  * Reserved space for vmalloc and iomap - defined in asm/page.h
  14  */
  15 #define MAXMEM_PFN      PFN_DOWN(MAXMEM)
  16 #define MAX_NONPAE_PFN  (1 << 20)
  17 #endif
  18
  19 #define PARAM_SIZE 4096
  20 #define COMMAND_LINE_SIZE 256
  21
  22 #define OLD_CL_MAGIC_ADDR       0x90020
  23 #define OLD_CL_MAGIC            0xA33F
  24 #define OLD_CL_BASE_ADDR        0x90000
  25 #define OLD_CL_OFFSET           0x90022
  26 #define NEW_CL_POINTER          0x228   /* Relative to real mode data */
  27
  28 #ifndef __ASSEMBLY__
  29 /*
  30  * This is set up by the setup-routine at boot-time
  31  */
  32 extern unsigned char boot_params[PARAM_SIZE];
  33
  34 #define PARAM   (boot_params)
  35 #define SCREEN_INFO (*(struct screen_info *) (PARAM+0))
  36 #define EXT_MEM_K (*(unsigned short *) (PARAM+2))
  37 #define ALT_MEM_K (*(unsigned long *) (PARAM+0x1e0))
  38 #define E820_MAP_NR (*(char*) (PARAM+E820NR))
  39 #define E820_MAP    ((struct e820entry *) (PARAM+E820MAP))
  40 #define APM_BIOS_INFO (*(struct apm_bios_info *) (PARAM+0x40))
  41 #define IST_INFO   (*(struct ist_info *) (PARAM+0x60))
  42 #define DRIVE_INFO (*(struct drive_info_struct *) (PARAM+0x80))
  43 #define SYS_DESC_TABLE (*(struct sys_desc_table_struct*)(PARAM+0xa0))
  44 #define EFI_SYSTAB ((efi_system_table_t *) *((unsigned long *)(PARAM+0x1c4)))
  45 #define EFI_MEMDESC_SIZE (*((unsigned long *) (PARAM+0x1c8)))
  46 #define EFI_MEMDESC_VERSION (*((unsigned long *) (PARAM+0x1cc)))
  47 #define EFI_MEMMAP ((void *) *((unsigned long *)(PARAM+0x1d0)))
  48 #define EFI_MEMMAP_SIZE (*((unsigned long *) (PARAM+0x1d4)))
  49 #define MOUNT_ROOT_RDONLY (*(unsigned short *) (PARAM+0x1F2))
  50 #define RAMDISK_FLAGS (*(unsigned short *) (PARAM+0x1F8))
  51 #define VIDEO_MODE (*(unsigned short *) (PARAM+0x1FA))
  52 #define ORIG_ROOT_DEV (*(unsigned short *) (PARAM+0x1FC))
  53 #define AUX_DEVICE_INFO (*(unsigned char *) (PARAM+0x1FF))
  54 #define LOADER_TYPE (*(unsigned char *) (PARAM+0x210))
  55 #define KERNEL_START (*(unsigned long *) (PARAM+0x214))
  56 #define INITRD_START (*(unsigned long *) (PARAM+0x218))
  57 #define INITRD_SIZE (*(unsigned long *) (PARAM+0x21c))
  58 #define EDID_INFO   (*(struct edid_info *) (PARAM+0x140))
  59 #define EDD_NR     (*(unsigned char *) (PARAM+EDDNR))
  60 #define EDD_MBR_SIG_NR (*(unsigned char *) (PARAM+EDD_MBR_SIG_NR_BUF))
  61 #define EDD_MBR_SIGNATURE ((unsigned int *) (PARAM+EDD_MBR_SIG_BUF))
  62 #define EDD_BUF     ((struct edd_info *) (PARAM+EDDBUF))
  63
  64 /*
  65  * Do NOT EVER look at the BIOS memory size location.
  66  * It does not work on many machines.
  67  */
  68 #define LOWMEMSIZE()    (0x9f000)
  69
  70 struct e820entry;
  71
  72 char * __init machine_specific_memory_setup(void);
  73 char *memory_setup(void);
  74
  75 int __init copy_e820_map(struct e820entry * biosmap, int nr_map);
  76 int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map);
  77 void __init add_memory_region(unsigned long long start,
  78                               unsigned long long size, int type);
  79
  80 #endif /* __ASSEMBLY__ */
  81
  82 #endif /* _i386_SETUP_H */