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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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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 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 */
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 ((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#endif /* __ASSEMBLY__ */
65
66#endif /* _i386_SETUP_H */