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