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 COMMAND_LINE_SIZE 2048 10 11#ifdef __KERNEL__ 12#include <linux/pfn.h> 13 14/* 15 * Reserved space for vmalloc and iomap - defined in asm/page.h 16 */ 17#define MAXMEM_PFN PFN_DOWN(MAXMEM) 18#define MAX_NONPAE_PFN (1 << 20) 19 20#define PARAM_SIZE 4096 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/* 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 70struct e820entry; 71 72char * __init machine_specific_memory_setup(void); 73char *memory_setup(void); 74 75int __init copy_e820_map(struct e820entry * biosmap, int nr_map); 76int __init sanitize_e820_map(struct e820entry * biosmap, char * pnr_map); 77void __init add_memory_region(unsigned long long start, 78 unsigned long long size, int type); 79 80extern unsigned long init_pg_tables_end; 81 82#endif /* __ASSEMBLY__ */ 83 84#endif /* __KERNEL__ */ 85 86#endif /* _i386_SETUP_H */ 87