Commit 30c82645 authored by H. Peter Anvin's avatar H. Peter Anvin
Browse files

[x86] remove uses of magic macros for boot_params access



Instead of using magic macros for boot_params access, simply use the
boot_params structure.
Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
parent 2b0460b5
......@@ -39,6 +39,7 @@ setup-y += printf.o string.o tty.o video.o version.o voyager.o
setup-y += video-vga.o
setup-y += video-vesa.o
setup-y += video-bios.o
targets += $(setup-y)
hostprogs-y := tools/build
......
......@@ -24,7 +24,7 @@
#include <asm/page.h>
#include <asm/e820.h>
#include <asm/proto.h>
#include <asm/bootsetup.h>
#include <asm/setup.h>
#include <asm/sections.h>
struct e820map e820;
......@@ -68,10 +68,15 @@ static inline int bad_addr(unsigned long *addrp, unsigned long size)
/* initrd */
#ifdef CONFIG_BLK_DEV_INITRD
if (LOADER_TYPE && INITRD_START && last >= INITRD_START &&
addr < INITRD_START+INITRD_SIZE) {
*addrp = PAGE_ALIGN(INITRD_START + INITRD_SIZE);
return 1;
if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
unsigned long ramdisk_size = boot_params.hdr.ramdisk_size;
unsigned long ramdisk_end = ramdisk_image+ramdisk_size;
if (last >= ramdisk_image && addr < ramdisk_end) {
*addrp = PAGE_ALIGN(ramdisk_end);
return 1;
}
}
#endif
/* kernel code */
......@@ -594,8 +599,8 @@ void __init setup_memory_region(void)
* Otherwise fake a memory map; one section from 0k->640k,
* the next section from 1mb->appropriate_mem_k
*/
sanitize_e820_map(E820_MAP, &E820_MAP_NR);
if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0)
sanitize_e820_map(boot_params.e820_map, &boot_params.e820_entries);
if (copy_e820_map(boot_params.e820_map, boot_params.e820_entries) < 0)
early_panic("Cannot find a valid memory map");
printk(KERN_INFO "BIOS-provided physical RAM map:\n");
e820_print_map("BIOS-e820");
......
......@@ -6,15 +6,10 @@
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/fcntl.h>
#include <asm/setup.h>
#include <xen/hvc-console.h>
/* Simple VGA output */
#ifdef __i386__
#include <asm/setup.h>
#else
#include <asm/bootsetup.h>
#endif
#define VGABASE (__ISA_IO_base + 0xb8000)
static int max_ypos = 25, max_xpos = 80;
......@@ -234,10 +229,10 @@ static int __init setup_early_printk(char *buf)
early_serial_init(buf);
early_console = &early_serial_console;
} else if (!strncmp(buf, "vga", 3)
&& SCREEN_INFO.orig_video_isVGA == 1) {
max_xpos = SCREEN_INFO.orig_video_cols;
max_ypos = SCREEN_INFO.orig_video_lines;
current_ypos = SCREEN_INFO.orig_y;
&& boot_params.screen_info.orig_video_isVGA == 1) {
max_xpos = boot_params.screen_info.orig_video_cols;
max_ypos = boot_params.screen_info.orig_video_lines;
current_ypos = boot_params.screen_info.orig_y;
early_console = &early_vga_console;
} else if (!strncmp(buf, "simnow", 6)) {
simnow_init(buf + 6);
......
......@@ -331,11 +331,13 @@ void __init efi_init(void)
memset(&efi, 0, sizeof(efi) );
memset(&efi_phys, 0, sizeof(efi_phys));
efi_phys.systab = EFI_SYSTAB;
memmap.phys_map = EFI_MEMMAP;
memmap.nr_map = EFI_MEMMAP_SIZE/EFI_MEMDESC_SIZE;
memmap.desc_version = EFI_MEMDESC_VERSION;
memmap.desc_size = EFI_MEMDESC_SIZE;
efi_phys.systab =
(efi_system_table_t *)boot_params.efi_info.efi_systab;
memmap.phys_map = (void *)boot_params.efi_info.efi_memmap;
memmap.nr_map = boot_params.efi_info.efi_memmap_size/
boot_params.efi_info.efi_memdesc_size;
memmap.desc_version = boot_params.efi_info.efi_memdesc_version;
memmap.desc_size = boot_params.efi_info.efi_memdesc_size;
efi.systab = (efi_system_table_t *)
boot_ioremap((unsigned long) efi_phys.systab,
......@@ -446,7 +448,8 @@ void __init efi_init(void)
printk(KERN_ERR PFX "Could not map the runtime service table!\n");
/* Map the EFI memory map for use until paging_init() */
memmap.map = boot_ioremap((unsigned long) EFI_MEMMAP, EFI_MEMMAP_SIZE);
memmap.map = boot_ioremap(boot_params.efi_info.efi_memmap,
boot_params.efi_info.efi_memmap_size);
if (memmap.map == NULL)
printk(KERN_ERR PFX "Could not map the EFI memory map!\n");
......
......@@ -14,7 +14,6 @@
#include <asm/processor.h>
#include <asm/proto.h>
#include <asm/smp.h>
#include <asm/bootsetup.h>
#include <asm/setup.h>
#include <asm/desc.h>
#include <asm/pgtable.h>
......@@ -36,26 +35,15 @@ static void __init clear_bss(void)
(unsigned long) __bss_stop - (unsigned long) __bss_start);
}
#define NEW_CL_POINTER 0x228 /* Relative to real mode data */
#define OLD_CL_MAGIC_ADDR 0x20
#define OLD_CL_MAGIC 0xA33F
#define OLD_CL_OFFSET 0x22
static void __init copy_bootdata(char *real_mode_data)
{
unsigned long new_data;
char * command_line;
memcpy(x86_boot_params, real_mode_data, BOOT_PARAM_SIZE);
new_data = *(u32 *) (x86_boot_params + NEW_CL_POINTER);
if (!new_data) {
if (OLD_CL_MAGIC != *(u16 *)(real_mode_data + OLD_CL_MAGIC_ADDR)) {
return;
}
new_data = __pa(real_mode_data) + *(u16 *)(real_mode_data + OLD_CL_OFFSET);
memcpy(&boot_params, real_mode_data, sizeof boot_params);
if (boot_params.hdr.cmd_line_ptr) {
command_line = __va(boot_params.hdr.cmd_line_ptr);
memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
}
command_line = __va(new_data);
memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
}
void __init x86_64_start_kernel(char * real_mode_data)
......
......@@ -11,7 +11,6 @@
#include <linux/bootmem.h>
#include <linux/bitops.h>
#include <linux/module.h>
#include <asm/bootsetup.h>
#include <asm/pda.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
......@@ -23,8 +22,9 @@
#include <asm/percpu.h>
#include <asm/proto.h>
#include <asm/sections.h>
#include <asm/setup.h>
char x86_boot_params[BOOT_PARAM_SIZE] __initdata;
struct boot_params __initdata boot_params;
cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
......
......@@ -137,10 +137,11 @@ EXPORT_SYMBOL(edd);
*/
static inline void copy_edd(void)
{
memcpy(edd.mbr_signature, EDD_MBR_SIGNATURE, sizeof(edd.mbr_signature));
memcpy(edd.edd_info, EDD_BUF, sizeof(edd.edd_info));
edd.mbr_signature_nr = EDD_MBR_SIG_NR;
edd.edd_info_nr = EDD_NR;
memcpy(edd.mbr_signature, boot_params.edd_mbr_sig_buffer,
sizeof(edd.mbr_signature));
memcpy(edd.edd_info, boot_params.eddbuf, sizeof(edd.edd_info));
edd.mbr_signature_nr = boot_params.edd_mbr_sig_buf_entries;
edd.edd_info_nr = boot_params.eddbuf_entries;
}
#else
static inline void copy_edd(void)
......@@ -434,17 +435,20 @@ void __init setup_bootmem_allocator(void)
#endif
numa_kva_reserve();
#ifdef CONFIG_BLK_DEV_INITRD
if (LOADER_TYPE && INITRD_START) {
if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
reserve_bootmem(INITRD_START, INITRD_SIZE);
initrd_start = INITRD_START + PAGE_OFFSET;
initrd_end = initrd_start+INITRD_SIZE;
}
else {
if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
unsigned long ramdisk_size = boot_params.hdr.ramdisk_size;
unsigned long ramdisk_end = ramdisk_image + ramdisk_size;
unsigned long end_of_lowmem = max_low_pfn << PAGE_SHIFT;
if (ramdisk_end <= end_of_lowmem) {
reserve_bootmem(ramdisk_image, ramdisk_size);
initrd_start = ramdisk_image + PAGE_OFFSET;
initrd_end = initrd_start+ramdisk_size;
} else {
printk(KERN_ERR "initrd extends beyond end of memory "
"(0x%08lx > 0x%08lx)\ndisabling initrd\n",
INITRD_START + INITRD_SIZE,
max_low_pfn << PAGE_SHIFT);
"(0x%08lx > 0x%08lx)\ndisabling initrd\n",
ramdisk_end, end_of_lowmem);
initrd_start = 0;
}
}
......@@ -512,28 +516,29 @@ void __init setup_arch(char **cmdline_p)
* the system table is valid. If not, then initialize normally.
*/
#ifdef CONFIG_EFI
if ((LOADER_TYPE == 0x50) && EFI_SYSTAB)
if ((boot_params.hdr.type_of_loader == 0x50) &&
boot_params.efi_info.efi_systab)
efi_enabled = 1;
#endif
ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
screen_info = SCREEN_INFO;
edid_info = EDID_INFO;
apm_info.bios = APM_BIOS_INFO;
ist_info = IST_INFO;
saved_videomode = VIDEO_MODE;
if( SYS_DESC_TABLE.length != 0 ) {
set_mca_bus(SYS_DESC_TABLE.table[3] & 0x2);
machine_id = SYS_DESC_TABLE.table[0];
machine_submodel_id = SYS_DESC_TABLE.table[1];
BIOS_revision = SYS_DESC_TABLE.table[2];
ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
screen_info = boot_params.screen_info;
edid_info = boot_params.edid_info;
apm_info.bios = boot_params.apm_bios_info;
ist_info = boot_params.ist_info;
saved_videomode = boot_params.hdr.vid_mode;
if( boot_params.sys_desc_table.length != 0 ) {
set_mca_bus(boot_params.sys_desc_table.table[3] & 0x2);
machine_id = boot_params.sys_desc_table.table[0];
machine_submodel_id = boot_params.sys_desc_table.table[1];
BIOS_revision = boot_params.sys_desc_table.table[2];
}
bootloader_type = LOADER_TYPE;
bootloader_type = boot_params.hdr.type_of_loader;
#ifdef CONFIG_BLK_DEV_RAM
rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
rd_image_start = boot_params.hdr.ram_size & RAMDISK_IMAGE_START_MASK;
rd_prompt = ((boot_params.hdr.ram_size & RAMDISK_PROMPT_FLAG) != 0);
rd_doload = ((boot_params.hdr.ram_size & RAMDISK_LOAD_FLAG) != 0);
#endif
ARCH_SETUP
if (efi_enabled)
......@@ -545,7 +550,7 @@ void __init setup_arch(char **cmdline_p)
copy_edd();
if (!MOUNT_ROOT_RDONLY)
if (!boot_params.hdr.root_flags)
root_mountflags &= ~MS_RDONLY;
init_mm.start_code = (unsigned long) _text;
init_mm.end_code = (unsigned long) _etext;
......
......@@ -52,7 +52,6 @@
#include <asm/dma.h>
#include <asm/mpspec.h>
#include <asm/mmu_context.h>
#include <asm/bootsetup.h>
#include <asm/proto.h>
#include <asm/setup.h>
#include <asm/mach_apic.h>
......@@ -180,10 +179,11 @@ EXPORT_SYMBOL(edd);
*/
static inline void copy_edd(void)
{
memcpy(edd.mbr_signature, EDD_MBR_SIGNATURE, sizeof(edd.mbr_signature));
memcpy(edd.edd_info, EDD_BUF, sizeof(edd.edd_info));
edd.mbr_signature_nr = EDD_MBR_SIG_NR;
edd.edd_info_nr = EDD_NR;
memcpy(edd.mbr_signature, boot_params.edd_mbr_sig_buffer,
sizeof(edd.mbr_signature));
memcpy(edd.edd_info, boot_params.eddbuf, sizeof(edd.edd_info));
edd.mbr_signature_nr = boot_params.edd_mbr_sig_buf_entries;
edd.edd_info_nr = boot_params.eddbuf_entries;
}
#else
static inline void copy_edd(void)
......@@ -220,21 +220,21 @@ void __init setup_arch(char **cmdline_p)
{
printk(KERN_INFO "Command line: %s\n", boot_command_line);
ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
screen_info = SCREEN_INFO;
edid_info = EDID_INFO;
saved_video_mode = SAVED_VIDEO_MODE;
bootloader_type = LOADER_TYPE;
ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
screen_info = boot_params.screen_info;
edid_info = boot_params.edid_info;
saved_video_mode = boot_params.hdr.vid_mode;
bootloader_type = boot_params.hdr.type_of_loader;
#ifdef CONFIG_BLK_DEV_RAM
rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
rd_image_start = boot_params.hdr.ram_size & RAMDISK_IMAGE_START_MASK;
rd_prompt = ((boot_params.hdr.ram_size & RAMDISK_PROMPT_FLAG) != 0);
rd_doload = ((boot_params.hdr.ram_size & RAMDISK_LOAD_FLAG) != 0);
#endif
setup_memory_region();
copy_edd();
if (!MOUNT_ROOT_RDONLY)
if (!boot_params.hdr.root_flags)
root_mountflags &= ~MS_RDONLY;
init_mm.start_code = (unsigned long) &_text;
init_mm.end_code = (unsigned long) &_etext;
......@@ -339,17 +339,20 @@ void __init setup_arch(char **cmdline_p)
*/
find_smp_config();
#ifdef CONFIG_BLK_DEV_INITRD
if (LOADER_TYPE && INITRD_START) {
if (INITRD_START + INITRD_SIZE <= (end_pfn << PAGE_SHIFT)) {
reserve_bootmem_generic(INITRD_START, INITRD_SIZE);
initrd_start = INITRD_START + PAGE_OFFSET;
initrd_end = initrd_start+INITRD_SIZE;
}
else {
if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
unsigned long ramdisk_size = boot_params.hdr.ramdisk_size;
unsigned long ramdisk_end = ramdisk_image + ramdisk_size;
unsigned long end_of_mem = end_pfn << PAGE_SHIFT;
if (ramdisk_end <= end_of_mem) {
reserve_bootmem_generic(ramdisk_image, ramdisk_size);
initrd_start = ramdisk_image + PAGE_OFFSET;
initrd_end = initrd_start+ramdisk_size;
} else {
printk(KERN_ERR "initrd extends beyond end of memory "
"(0x%08lx > 0x%08lx)\ndisabling initrd\n",
(unsigned long)(INITRD_START + INITRD_SIZE),
(unsigned long)(end_pfn << PAGE_SHIFT));
"(0x%08lx > 0x%08lx)\ndisabling initrd\n",
ramdisk_end, end_of_mem);
initrd_start = 0;
}
}
......
......@@ -159,16 +159,18 @@ char * __init machine_specific_memory_setup(void)
* Otherwise fake a memory map; one section from 0k->640k,
* the next section from 1mb->appropriate_mem_k
*/
sanitize_e820_map(E820_MAP, &E820_MAP_NR);
if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) {
sanitize_e820_map(boot_params.e820_map, &boot_params.e820_entries);
if (copy_e820_map(boot_params.e820_map, boot_params.e820_entries)
< 0) {
unsigned long mem_size;
/* compare results from other methods and take the greater */
if (ALT_MEM_K < EXT_MEM_K) {
mem_size = EXT_MEM_K;
if (boot_params.alt_mem_k
< boot_params.screen_info.ext_mem_k) {
mem_size = boot_params.screen_info.ext_mem_k;
who = "BIOS-88";
} else {
mem_size = ALT_MEM_K;
mem_size = boot_params.alt_mem_k;
who = "BIOS-e801";
}
......
......@@ -152,7 +152,7 @@ char * __init machine_specific_memory_setup(void)
{
long long gfx_mem_size = 8 * MB;
mem_size = ALT_MEM_K;
mem_size = boot_params.alt_mem_k;
if (!mem_size) {
printk(KERN_WARNING "Bootloader didn't set memory size, upgrade it !\n");
......
......@@ -83,7 +83,7 @@ char * __init machine_specific_memory_setup(void)
if(inb(catbase) != VOYAGER_DINO) {
printk(KERN_ERR "Voyager: Failed to get DINO for L4, setting tom to EXT_MEM_K\n");
tom = (EXT_MEM_K)<<10;
tom = (boot_params.screen_info.ext_mem_k)<<10;
}
who = "Voyager-TOM";
add_memory_region(0, 0x9f000, E820_RAM);
......@@ -104,16 +104,18 @@ char * __init machine_specific_memory_setup(void)
* Otherwise fake a memory map; one section from 0k->640k,
* the next section from 1mb->appropriate_mem_k
*/
sanitize_e820_map(E820_MAP, &E820_MAP_NR);
if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) {
sanitize_e820_map(boot_params.e820_map, &boot_params.e820_entries);
if (copy_e820_map(boot_params.e820_map, boot_params.e820_entries)
< 0) {
unsigned long mem_size;
/* compare results from other methods and take the greater */
if (ALT_MEM_K < EXT_MEM_K) {
mem_size = EXT_MEM_K;
if (boot_params.alt_mem_k
< boot_params.screen_info.ext_mem_k) {
mem_size = boot_params.screen_info.ext_mem_k;
who = "BIOS-88";
} else {
mem_size = ALT_MEM_K;
mem_size = boot_params.alt_mem_k;
who = "BIOS-e801";
}
......
......@@ -288,8 +288,9 @@ unsigned long __init setup_memory(void)
#ifdef CONFIG_BLK_DEV_INITRD
/* Numa kva area is below the initrd */
if (LOADER_TYPE && INITRD_START)
kva_start_pfn = PFN_DOWN(INITRD_START) - kva_pages;
if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image)
kva_start_pfn = PFN_DOWN(boot_params.hdr.ramdisk_image)
- kva_pages;
#endif
kva_start_pfn -= kva_start_pfn & (PTRS_PER_PTE-1);
......
......@@ -1137,9 +1137,10 @@ asmlinkage void __init xen_start_kernel(void)
new_cpu_data.x86_capability[0] = cpuid_edx(1);
/* Poke various useful things into boot_params */
LOADER_TYPE = (9 << 4) | 0;
INITRD_START = xen_start_info->mod_start ? __pa(xen_start_info->mod_start) : 0;
INITRD_SIZE = xen_start_info->mod_len;
boot_params.hdr.type_of_loader = (9 << 4) | 0;
boot_params.hdr.ramdisk_image = xen_start_info->mod_start
? __pa(xen_start_info->mod_start) : 0;
boot_params.hdr.ramdisk_size = xen_start_info->mod_len;
/* Start the world */
start_kernel();
......
......@@ -893,7 +893,9 @@ static __init char *lguest_memory_setup(void)
/* The Linux bootloader header contains an "e820" memory map: the
* Launcher populated the first entry with our memory limit. */
add_memory_region(E820_MAP->addr, E820_MAP->size, E820_MAP->type);
add_memory_region(boot_params.e820_map[0].addr,
boot_params.e820_map[0].size,
boot_params.e820_map[0].type);
/* This string is for the boot messages. */
return "LGUEST";
......
......@@ -372,7 +372,7 @@ static const char *vgacon_startup(void)
#endif
}
/* SCREEN_INFO initialized? */
/* boot_params.screen_info initialized? */
if ((ORIG_VIDEO_MODE == 0) &&
(ORIG_VIDEO_LINES == 0) &&
(ORIG_VIDEO_COLS == 0))
......
include include/asm-generic/Kbuild.asm
header-y += boot.h
header-y += bootsetup.h
header-y += debugreg_32.h
header-y += debugreg_64.h
header-y += debugreg.h
......
......@@ -14,6 +14,9 @@ struct setup_header {
u16 root_flags;
u32 syssize;
u16 ram_size;
#define RAMDISK_IMAGE_START_MASK 0x07FF
#define RAMDISK_PROMPT_FLAG 0x8000
#define RAMDISK_LOAD_FLAG 0x4000
u16 vid_mode;
u16 root_dev;
u16 boot_flag;
......
#ifndef _X86_64_BOOTSETUP_H
#define _X86_64_BOOTSETUP_H 1
#define BOOT_PARAM_SIZE 4096
extern char x86_boot_params[BOOT_PARAM_SIZE];
/*
* This is set up by the setup-routine at boot-time
*/
#define PARAM ((unsigned char *)x86_boot_params)
#define SCREEN_INFO (*(struct screen_info *) (PARAM+0))
#define EXT_MEM_K (*(unsigned short *) (PARAM+2))
#define ALT_MEM_K (*(unsigned int *) (PARAM+0x1e0))
#define E820_MAP_NR (*(char*) (PARAM+E820NR))
#define E820_MAP ((struct e820entry *) (PARAM+E820MAP))
#define APM_BIOS_INFO (*(struct apm_bios_info *) (PARAM+0x40))
#define DRIVE_INFO (*(struct drive_info_struct *) (PARAM+0x80))
#define SYS_DESC_TABLE (*(struct sys_desc_table_struct*)(PARAM+0xa0))
#define MOUNT_ROOT_RDONLY (*(unsigned short *) (PARAM+0x1F2))
#define RAMDISK_FLAGS (*(unsigned short *) (PARAM+0x1F8))
#define SAVED_VIDEO_MODE (*(unsigned short *) (PARAM+0x1FA))
#define ORIG_ROOT_DEV (*(unsigned short *) (PARAM+0x1FC))
#define AUX_DEVICE_INFO (*(unsigned char *) (PARAM+0x1FF))
#define LOADER_TYPE (*(unsigned char *) (PARAM+0x210))
#define KERNEL_START (*(unsigned int *) (PARAM+0x214))
#define INITRD_START (*(unsigned int *) (PARAM+0x218))
#define INITRD_SIZE (*(unsigned int *) (PARAM+0x21c))
#define EDID_INFO (*(struct edid_info *) (PARAM+0x140))
#define EDD_NR (*(unsigned char *) (PARAM+EDDNR))
#define EDD_MBR_SIG_NR (*(unsigned char *) (PARAM+EDD_MBR_SIG_NR_BUF))
#define EDD_MBR_SIGNATURE ((unsigned int *) (PARAM+EDD_MBR_SIG_BUF))
#define EDD_BUF ((struct edd_info *) (PARAM+EDDBUF))
#define COMMAND_LINE boot_command_line
#define RAMDISK_IMAGE_START_MASK 0x07FF
#define RAMDISK_PROMPT_FLAG 0x8000
#define RAMDISK_LOAD_FLAG 0x4000
#endif
......@@ -34,35 +34,6 @@
*/
extern struct boot_params boot_params;
#define PARAM ((char *)&boot_params)
#define SCREEN_INFO (*(struct screen_info *) (PARAM+0))
#define EXT_MEM_K (*(unsigned short *) (PARAM+2))
#define ALT_MEM_K (*(unsigned long *) (PARAM+0x1e0))
#define E820_MAP_NR (*(char*) (PARAM+E820NR))
#define E820_MAP ((struct e820entry *) (PARAM+E820MAP))
#define APM_BIOS_INFO (*(struct apm_bios_info *) (PARAM+0x40))
#define IST_INFO (*(struct ist_info *) (PARAM+0x60))
#define SYS_DESC_TABLE (*(struct sys_desc_table *)(PARAM+0xa0))
#define EFI_SYSTAB ((efi_system_table_t *) *((unsigned long *)(PARAM+0x1c4)))
#define EFI_MEMDESC_SIZE (*((unsigned long *) (PARAM+0x1c8)))
#define EFI_MEMDESC_VERSION (*((unsigned long *) (PARAM+0x1cc)))
#define EFI_MEMMAP ((void *) *((unsigned long *)(PARAM+0x1d0)))
#define EFI_MEMMAP_SIZE (*((unsigned long *) (PARAM+0x1d4)))
#define MOUNT_ROOT_RDONLY (*(unsigned short *) (PARAM+0x1F2))
#define RAMDISK_FLAGS (*(unsigned short *) (PARAM+0x1F8))
#define VIDEO_MODE (*(unsigned short *) (PARAM+0x1FA))
#define ORIG_ROOT_DEV (*(unsigned short *) (PARAM+0x1FC))
#define AUX_DEVICE_INFO (*(unsigned char *) (PARAM+0x1FF))
#define LOADER_TYPE (*(unsigned char *) (PARAM+0x210))
#define KERNEL_START (*(unsigned long *) (PARAM+0x214))
#define INITRD_START (*(unsigned long *) (PARAM+0x218))
#define INITRD_SIZE (*(unsigned long *) (PARAM+0x21c))
#define EDID_INFO (*(struct edid_info *) (PARAM+0x140))
#define EDD_NR (*(unsigned char *) (PARAM+EDDNR))
#define EDD_MBR_SIG_NR (*(unsigned char *) (PARAM+EDD_MBR_SIG_NR_BUF))
#define EDD_MBR_SIGNATURE ((unsigned int *) (PARAM+EDD_MBR_SIG_BUF))
#define EDD_BUF ((struct edd_info *) (PARAM+EDDBUF))
/*
* Do NOT EVER look at the BIOS memory size location.
* It does not work on many machines.
......
......@@ -3,4 +3,17 @@
#define COMMAND_LINE_SIZE 2048
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#include <asm/bootparam.h>
/*
* This is set up by the setup-routine at boot-time
*/
extern struct boot_params boot_params;
#endif /* not __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif
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