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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 | #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 | ||
74 | int __init copy_e820_map(struct e820entry * biosmap, int nr_map); | |
75 | int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map); | |
76 | void __init add_memory_region(unsigned long long start, | |
77 | unsigned long long size, int type); | |
78 | ||
79 | #endif /* __ASSEMBLY__ */ | |
80 | ||
81 | #endif /* _i386_SETUP_H */ |