LXR linux/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#define PFN_UP(x)       (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
  10#define PFN_DOWN(x)     ((x) >> PAGE_SHIFT)
  11#define PFN_PHYS(x)     ((x) << PAGE_SHIFT)
  12
  13/*
  14 * Reserved space for vmalloc and iomap - defined in asm/page.h
  15 */
  16#define MAXMEM_PFN      PFN_DOWN(MAXMEM)
  17#define MAX_NONPAE_PFN  (1 << 20)
  18
  19#define PARAM_SIZE 2048
  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 */
  32extern 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 ((efi_memory_desc_t *) *((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#endif /* __ASSEMBLY__ */
  65
  66#endif /* _i386_SETUP_H */
  67