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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/x86/kernel/setup.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/x86/kernel/setup.c')
-rw-r--r--ANDROID_3.4.5/arch/x86/kernel/setup.c1060
1 files changed, 0 insertions, 1060 deletions
diff --git a/ANDROID_3.4.5/arch/x86/kernel/setup.c b/ANDROID_3.4.5/arch/x86/kernel/setup.c
deleted file mode 100644
index 1a290156..00000000
--- a/ANDROID_3.4.5/arch/x86/kernel/setup.c
+++ /dev/null
@@ -1,1060 +0,0 @@
-/*
- * Copyright (C) 1995 Linus Torvalds
- *
- * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
- *
- * Memory region support
- * David Parsons <orc@pell.chi.il.us>, July-August 1999
- *
- * Added E820 sanitization routine (removes overlapping memory regions);
- * Brian Moyle <bmoyle@mvista.com>, February 2001
- *
- * Moved CPU detection code to cpu/${cpu}.c
- * Patrick Mochel <mochel@osdl.org>, March 2002
- *
- * Provisions for empty E820 memory regions (reported by certain BIOSes).
- * Alex Achenbach <xela@slit.de>, December 2002.
- *
- */
-
-/*
- * This file handles the architecture-dependent parts of initialization
- */
-
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/mmzone.h>
-#include <linux/screen_info.h>
-#include <linux/ioport.h>
-#include <linux/acpi.h>
-#include <linux/sfi.h>
-#include <linux/apm_bios.h>
-#include <linux/initrd.h>
-#include <linux/bootmem.h>
-#include <linux/memblock.h>
-#include <linux/seq_file.h>
-#include <linux/console.h>
-#include <linux/mca.h>
-#include <linux/root_dev.h>
-#include <linux/highmem.h>
-#include <linux/module.h>
-#include <linux/efi.h>
-#include <linux/init.h>
-#include <linux/edd.h>
-#include <linux/iscsi_ibft.h>
-#include <linux/nodemask.h>
-#include <linux/kexec.h>
-#include <linux/dmi.h>
-#include <linux/pfn.h>
-#include <linux/pci.h>
-#include <asm/pci-direct.h>
-#include <linux/init_ohci1394_dma.h>
-#include <linux/kvm_para.h>
-
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/delay.h>
-
-#include <linux/kallsyms.h>
-#include <linux/cpufreq.h>
-#include <linux/dma-mapping.h>
-#include <linux/ctype.h>
-#include <linux/uaccess.h>
-
-#include <linux/percpu.h>
-#include <linux/crash_dump.h>
-#include <linux/tboot.h>
-
-#include <video/edid.h>
-
-#include <asm/mtrr.h>
-#include <asm/apic.h>
-#include <asm/trampoline.h>
-#include <asm/e820.h>
-#include <asm/mpspec.h>
-#include <asm/setup.h>
-#include <asm/efi.h>
-#include <asm/timer.h>
-#include <asm/i8259.h>
-#include <asm/sections.h>
-#include <asm/dmi.h>
-#include <asm/io_apic.h>
-#include <asm/ist.h>
-#include <asm/setup_arch.h>
-#include <asm/bios_ebda.h>
-#include <asm/cacheflush.h>
-#include <asm/processor.h>
-#include <asm/bugs.h>
-
-#include <asm/vsyscall.h>
-#include <asm/cpu.h>
-#include <asm/desc.h>
-#include <asm/dma.h>
-#include <asm/iommu.h>
-#include <asm/gart.h>
-#include <asm/mmu_context.h>
-#include <asm/proto.h>
-
-#include <asm/paravirt.h>
-#include <asm/hypervisor.h>
-#include <asm/olpc_ofw.h>
-
-#include <asm/percpu.h>
-#include <asm/topology.h>
-#include <asm/apicdef.h>
-#include <asm/amd_nb.h>
-#ifdef CONFIG_X86_64
-#include <asm/numa_64.h>
-#endif
-#include <asm/mce.h>
-#include <asm/alternative.h>
-#include <asm/prom.h>
-
-/*
- * end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries.
- * The direct mapping extends to max_pfn_mapped, so that we can directly access
- * apertures, ACPI and other tables without having to play with fixmaps.
- */
-unsigned long max_low_pfn_mapped;
-unsigned long max_pfn_mapped;
-
-#ifdef CONFIG_DMI
-RESERVE_BRK(dmi_alloc, 65536);
-#endif
-
-
-static __initdata unsigned long _brk_start = (unsigned long)__brk_base;
-unsigned long _brk_end = (unsigned long)__brk_base;
-
-#ifdef CONFIG_X86_64
-int default_cpu_present_to_apicid(int mps_cpu)
-{
- return __default_cpu_present_to_apicid(mps_cpu);
-}
-
-int default_check_phys_apicid_present(int phys_apicid)
-{
- return __default_check_phys_apicid_present(phys_apicid);
-}
-#endif
-
-#ifndef CONFIG_DEBUG_BOOT_PARAMS
-struct boot_params __initdata boot_params;
-#else
-struct boot_params boot_params;
-#endif
-
-/*
- * Machine setup..
- */
-static struct resource data_resource = {
- .name = "Kernel data",
- .start = 0,
- .end = 0,
- .flags = IORESOURCE_BUSY | IORESOURCE_MEM
-};
-
-static struct resource code_resource = {
- .name = "Kernel code",
- .start = 0,
- .end = 0,
- .flags = IORESOURCE_BUSY | IORESOURCE_MEM
-};
-
-static struct resource bss_resource = {
- .name = "Kernel bss",
- .start = 0,
- .end = 0,
- .flags = IORESOURCE_BUSY | IORESOURCE_MEM
-};
-
-
-#ifdef CONFIG_X86_32
-/* cpu data as detected by the assembly code in head.S */
-struct cpuinfo_x86 new_cpu_data __cpuinitdata = {0, 0, 0, 0, -1, 1, 0, 0, -1};
-/* common cpu data for all cpus */
-struct cpuinfo_x86 boot_cpu_data __read_mostly = {0, 0, 0, 0, -1, 1, 0, 0, -1};
-EXPORT_SYMBOL(boot_cpu_data);
-static void set_mca_bus(int x)
-{
-#ifdef CONFIG_MCA
- MCA_bus = x;
-#endif
-}
-
-unsigned int def_to_bigsmp;
-
-/* for MCA, but anyone else can use it if they want */
-unsigned int machine_id;
-unsigned int machine_submodel_id;
-unsigned int BIOS_revision;
-
-struct apm_info apm_info;
-EXPORT_SYMBOL(apm_info);
-
-#if defined(CONFIG_X86_SPEEDSTEP_SMI) || \
- defined(CONFIG_X86_SPEEDSTEP_SMI_MODULE)
-struct ist_info ist_info;
-EXPORT_SYMBOL(ist_info);
-#else
-struct ist_info ist_info;
-#endif
-
-#else
-struct cpuinfo_x86 boot_cpu_data __read_mostly = {
- .x86_phys_bits = MAX_PHYSMEM_BITS,
-};
-EXPORT_SYMBOL(boot_cpu_data);
-#endif
-
-
-#if !defined(CONFIG_X86_PAE) || defined(CONFIG_X86_64)
-unsigned long mmu_cr4_features;
-#else
-unsigned long mmu_cr4_features = X86_CR4_PAE;
-#endif
-
-/* Boot loader ID and version as integers, for the benefit of proc_dointvec */
-int bootloader_type, bootloader_version;
-
-/*
- * Setup options
- */
-struct screen_info screen_info;
-EXPORT_SYMBOL(screen_info);
-struct edid_info edid_info;
-EXPORT_SYMBOL_GPL(edid_info);
-
-extern int root_mountflags;
-
-unsigned long saved_video_mode;
-
-#define RAMDISK_IMAGE_START_MASK 0x07FF
-#define RAMDISK_PROMPT_FLAG 0x8000
-#define RAMDISK_LOAD_FLAG 0x4000
-
-static char __initdata command_line[COMMAND_LINE_SIZE];
-#ifdef CONFIG_CMDLINE_BOOL
-static char __initdata builtin_cmdline[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
-#endif
-
-#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
-struct edd edd;
-#ifdef CONFIG_EDD_MODULE
-EXPORT_SYMBOL(edd);
-#endif
-/**
- * copy_edd() - Copy the BIOS EDD information
- * from boot_params into a safe place.
- *
- */
-static inline void __init copy_edd(void)
-{
- 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 __init copy_edd(void)
-{
-}
-#endif
-
-void * __init extend_brk(size_t size, size_t align)
-{
- size_t mask = align - 1;
- void *ret;
-
- BUG_ON(_brk_start == 0);
- BUG_ON(align & mask);
-
- _brk_end = (_brk_end + mask) & ~mask;
- BUG_ON((char *)(_brk_end + size) > __brk_limit);
-
- ret = (void *)_brk_end;
- _brk_end += size;
-
- memset(ret, 0, size);
-
- return ret;
-}
-
-#ifdef CONFIG_X86_64
-static void __init init_gbpages(void)
-{
- if (direct_gbpages && cpu_has_gbpages)
- printk(KERN_INFO "Using GB pages for direct mapping\n");
- else
- direct_gbpages = 0;
-}
-#else
-static inline void init_gbpages(void)
-{
-}
-static void __init cleanup_highmap(void)
-{
-}
-#endif
-
-static void __init reserve_brk(void)
-{
- if (_brk_end > _brk_start)
- memblock_reserve(__pa(_brk_start),
- __pa(_brk_end) - __pa(_brk_start));
-
- /* Mark brk area as locked down and no longer taking any
- new allocations */
- _brk_start = 0;
-}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-
-#define MAX_MAP_CHUNK (NR_FIX_BTMAPS << PAGE_SHIFT)
-static void __init relocate_initrd(void)
-{
- /* Assume only end is not page aligned */
- u64 ramdisk_image = boot_params.hdr.ramdisk_image;
- u64 ramdisk_size = boot_params.hdr.ramdisk_size;
- u64 area_size = PAGE_ALIGN(ramdisk_size);
- u64 end_of_lowmem = max_low_pfn_mapped << PAGE_SHIFT;
- u64 ramdisk_here;
- unsigned long slop, clen, mapaddr;
- char *p, *q;
-
- /* We need to move the initrd down into lowmem */
- ramdisk_here = memblock_find_in_range(0, end_of_lowmem, area_size,
- PAGE_SIZE);
-
- if (!ramdisk_here)
- panic("Cannot find place for new RAMDISK of size %lld\n",
- ramdisk_size);
-
- /* Note: this includes all the lowmem currently occupied by
- the initrd, we rely on that fact to keep the data intact. */
- memblock_reserve(ramdisk_here, area_size);
- initrd_start = ramdisk_here + PAGE_OFFSET;
- initrd_end = initrd_start + ramdisk_size;
- printk(KERN_INFO "Allocated new RAMDISK: %08llx - %08llx\n",
- ramdisk_here, ramdisk_here + ramdisk_size);
-
- q = (char *)initrd_start;
-
- /* Copy any lowmem portion of the initrd */
- if (ramdisk_image < end_of_lowmem) {
- clen = end_of_lowmem - ramdisk_image;
- p = (char *)__va(ramdisk_image);
- memcpy(q, p, clen);
- q += clen;
- ramdisk_image += clen;
- ramdisk_size -= clen;
- }
-
- /* Copy the highmem portion of the initrd */
- while (ramdisk_size) {
- slop = ramdisk_image & ~PAGE_MASK;
- clen = ramdisk_size;
- if (clen > MAX_MAP_CHUNK-slop)
- clen = MAX_MAP_CHUNK-slop;
- mapaddr = ramdisk_image & PAGE_MASK;
- p = early_memremap(mapaddr, clen+slop);
- memcpy(q, p+slop, clen);
- early_iounmap(p, clen+slop);
- q += clen;
- ramdisk_image += clen;
- ramdisk_size -= clen;
- }
- /* high pages is not converted by early_res_to_bootmem */
- ramdisk_image = boot_params.hdr.ramdisk_image;
- ramdisk_size = boot_params.hdr.ramdisk_size;
- printk(KERN_INFO "Move RAMDISK from %016llx - %016llx to"
- " %08llx - %08llx\n",
- ramdisk_image, ramdisk_image + ramdisk_size - 1,
- ramdisk_here, ramdisk_here + ramdisk_size - 1);
-}
-
-static void __init reserve_initrd(void)
-{
- /* Assume only end is not page aligned */
- u64 ramdisk_image = boot_params.hdr.ramdisk_image;
- u64 ramdisk_size = boot_params.hdr.ramdisk_size;
- u64 ramdisk_end = PAGE_ALIGN(ramdisk_image + ramdisk_size);
- u64 end_of_lowmem = max_low_pfn_mapped << PAGE_SHIFT;
-
- if (!boot_params.hdr.type_of_loader ||
- !ramdisk_image || !ramdisk_size)
- return; /* No initrd provided by bootloader */
-
- initrd_start = 0;
-
- if (ramdisk_size >= (end_of_lowmem>>1)) {
- memblock_free(ramdisk_image, ramdisk_end - ramdisk_image);
- printk(KERN_ERR "initrd too large to handle, "
- "disabling initrd\n");
- return;
- }
-
- printk(KERN_INFO "RAMDISK: %08llx - %08llx\n", ramdisk_image,
- ramdisk_end);
-
-
- if (ramdisk_end <= end_of_lowmem) {
- /* All in lowmem, easy case */
- /*
- * don't need to reserve again, already reserved early
- * in i386_start_kernel
- */
- initrd_start = ramdisk_image + PAGE_OFFSET;
- initrd_end = initrd_start + ramdisk_size;
- return;
- }
-
- relocate_initrd();
-
- memblock_free(ramdisk_image, ramdisk_end - ramdisk_image);
-}
-#else
-static void __init reserve_initrd(void)
-{
-}
-#endif /* CONFIG_BLK_DEV_INITRD */
-
-static void __init parse_setup_data(void)
-{
- struct setup_data *data;
- u64 pa_data;
-
- if (boot_params.hdr.version < 0x0209)
- return;
- pa_data = boot_params.hdr.setup_data;
- while (pa_data) {
- u32 data_len, map_len;
-
- map_len = max(PAGE_SIZE - (pa_data & ~PAGE_MASK),
- (u64)sizeof(struct setup_data));
- data = early_memremap(pa_data, map_len);
- data_len = data->len + sizeof(struct setup_data);
- if (data_len > map_len) {
- early_iounmap(data, map_len);
- data = early_memremap(pa_data, data_len);
- map_len = data_len;
- }
-
- switch (data->type) {
- case SETUP_E820_EXT:
- parse_e820_ext(data);
- break;
- case SETUP_DTB:
- add_dtb(pa_data);
- break;
- default:
- break;
- }
- pa_data = data->next;
- early_iounmap(data, map_len);
- }
-}
-
-static void __init e820_reserve_setup_data(void)
-{
- struct setup_data *data;
- u64 pa_data;
- int found = 0;
-
- if (boot_params.hdr.version < 0x0209)
- return;
- pa_data = boot_params.hdr.setup_data;
- while (pa_data) {
- data = early_memremap(pa_data, sizeof(*data));
- e820_update_range(pa_data, sizeof(*data)+data->len,
- E820_RAM, E820_RESERVED_KERN);
- found = 1;
- pa_data = data->next;
- early_iounmap(data, sizeof(*data));
- }
- if (!found)
- return;
-
- sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
- memcpy(&e820_saved, &e820, sizeof(struct e820map));
- printk(KERN_INFO "extended physical RAM map:\n");
- e820_print_map("reserve setup_data");
-}
-
-static void __init memblock_x86_reserve_range_setup_data(void)
-{
- struct setup_data *data;
- u64 pa_data;
-
- if (boot_params.hdr.version < 0x0209)
- return;
- pa_data = boot_params.hdr.setup_data;
- while (pa_data) {
- data = early_memremap(pa_data, sizeof(*data));
- memblock_reserve(pa_data, sizeof(*data) + data->len);
- pa_data = data->next;
- early_iounmap(data, sizeof(*data));
- }
-}
-
-/*
- * --------- Crashkernel reservation ------------------------------
- */
-
-#ifdef CONFIG_KEXEC
-
-/*
- * Keep the crash kernel below this limit. On 32 bits earlier kernels
- * would limit the kernel to the low 512 MiB due to mapping restrictions.
- * On 64 bits, kexec-tools currently limits us to 896 MiB; increase this
- * limit once kexec-tools are fixed.
- */
-#ifdef CONFIG_X86_32
-# define CRASH_KERNEL_ADDR_MAX (512 << 20)
-#else
-# define CRASH_KERNEL_ADDR_MAX (896 << 20)
-#endif
-
-static void __init reserve_crashkernel(void)
-{
- unsigned long long total_mem;
- unsigned long long crash_size, crash_base;
- int ret;
-
- total_mem = memblock_phys_mem_size();
-
- ret = parse_crashkernel(boot_command_line, total_mem,
- &crash_size, &crash_base);
- if (ret != 0 || crash_size <= 0)
- return;
-
- /* 0 means: find the address automatically */
- if (crash_base <= 0) {
- const unsigned long long alignment = 16<<20; /* 16M */
-
- /*
- * kexec want bzImage is below CRASH_KERNEL_ADDR_MAX
- */
- crash_base = memblock_find_in_range(alignment,
- CRASH_KERNEL_ADDR_MAX, crash_size, alignment);
-
- if (!crash_base) {
- pr_info("crashkernel reservation failed - No suitable area found.\n");
- return;
- }
- } else {
- unsigned long long start;
-
- start = memblock_find_in_range(crash_base,
- crash_base + crash_size, crash_size, 1<<20);
- if (start != crash_base) {
- pr_info("crashkernel reservation failed - memory is in use.\n");
- return;
- }
- }
- memblock_reserve(crash_base, crash_size);
-
- printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
- "for crashkernel (System RAM: %ldMB)\n",
- (unsigned long)(crash_size >> 20),
- (unsigned long)(crash_base >> 20),
- (unsigned long)(total_mem >> 20));
-
- crashk_res.start = crash_base;
- crashk_res.end = crash_base + crash_size - 1;
- insert_resource(&iomem_resource, &crashk_res);
-}
-#else
-static void __init reserve_crashkernel(void)
-{
-}
-#endif
-
-static struct resource standard_io_resources[] = {
- { .name = "dma1", .start = 0x00, .end = 0x1f,
- .flags = IORESOURCE_BUSY | IORESOURCE_IO },
- { .name = "pic1", .start = 0x20, .end = 0x21,
- .flags = IORESOURCE_BUSY | IORESOURCE_IO },
- { .name = "timer0", .start = 0x40, .end = 0x43,
- .flags = IORESOURCE_BUSY | IORESOURCE_IO },
- { .name = "timer1", .start = 0x50, .end = 0x53,
- .flags = IORESOURCE_BUSY | IORESOURCE_IO },
- { .name = "keyboard", .start = 0x60, .end = 0x60,
- .flags = IORESOURCE_BUSY | IORESOURCE_IO },
- { .name = "keyboard", .start = 0x64, .end = 0x64,
- .flags = IORESOURCE_BUSY | IORESOURCE_IO },
- { .name = "dma page reg", .start = 0x80, .end = 0x8f,
- .flags = IORESOURCE_BUSY | IORESOURCE_IO },
- { .name = "pic2", .start = 0xa0, .end = 0xa1,
- .flags = IORESOURCE_BUSY | IORESOURCE_IO },
- { .name = "dma2", .start = 0xc0, .end = 0xdf,
- .flags = IORESOURCE_BUSY | IORESOURCE_IO },
- { .name = "fpu", .start = 0xf0, .end = 0xff,
- .flags = IORESOURCE_BUSY | IORESOURCE_IO }
-};
-
-void __init reserve_standard_io_resources(void)
-{
- int i;
-
- /* request I/O space for devices used on all i[345]86 PCs */
- for (i = 0; i < ARRAY_SIZE(standard_io_resources); i++)
- request_resource(&ioport_resource, &standard_io_resources[i]);
-
-}
-
-static __init void reserve_ibft_region(void)
-{
- unsigned long addr, size = 0;
-
- addr = find_ibft_region(&size);
-
- if (size)
- memblock_reserve(addr, size);
-}
-
-static unsigned reserve_low = CONFIG_X86_RESERVE_LOW << 10;
-
-static void __init trim_bios_range(void)
-{
- /*
- * A special case is the first 4Kb of memory;
- * This is a BIOS owned area, not kernel ram, but generally
- * not listed as such in the E820 table.
- *
- * This typically reserves additional memory (64KiB by default)
- * since some BIOSes are known to corrupt low memory. See the
- * Kconfig help text for X86_RESERVE_LOW.
- */
- e820_update_range(0, ALIGN(reserve_low, PAGE_SIZE),
- E820_RAM, E820_RESERVED);
-
- /*
- * special case: Some BIOSen report the PC BIOS
- * area (640->1Mb) as ram even though it is not.
- * take them out.
- */
- e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1);
- sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
-}
-
-static int __init parse_reservelow(char *p)
-{
- unsigned long long size;
-
- if (!p)
- return -EINVAL;
-
- size = memparse(p, &p);
-
- if (size < 4096)
- size = 4096;
-
- if (size > 640*1024)
- size = 640*1024;
-
- reserve_low = size;
-
- return 0;
-}
-
-early_param("reservelow", parse_reservelow);
-
-/*
- * Determine if we were loaded by an EFI loader. If so, then we have also been
- * passed the efi memmap, systab, etc., so we should use these data structures
- * for initialization. Note, the efi init code path is determined by the
- * global efi_enabled. This allows the same kernel image to be used on existing
- * systems (with a traditional BIOS) as well as on EFI systems.
- */
-/*
- * setup_arch - architecture-specific boot-time initializations
- *
- * Note: On x86_64, fixmaps are ready for use even before this is called.
- */
-
-void __init setup_arch(char **cmdline_p)
-{
-#ifdef CONFIG_X86_32
- memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data));
- visws_early_detect();
-
- /*
- * copy kernel address range established so far and switch
- * to the proper swapper page table
- */
- clone_pgd_range(swapper_pg_dir + KERNEL_PGD_BOUNDARY,
- initial_page_table + KERNEL_PGD_BOUNDARY,
- KERNEL_PGD_PTRS);
-
- load_cr3(swapper_pg_dir);
- __flush_tlb_all();
-#else
- printk(KERN_INFO "Command line: %s\n", boot_command_line);
-#endif
-
- /*
- * If we have OLPC OFW, we might end up relocating the fixmap due to
- * reserve_top(), so do this before touching the ioremap area.
- */
- olpc_ofw_detect();
-
- early_trap_init();
- early_cpu_init();
- early_ioremap_init();
-
- setup_olpc_ofw_pgd();
-
- ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev);
- screen_info = boot_params.screen_info;
- edid_info = boot_params.edid_info;
-#ifdef CONFIG_X86_32
- apm_info.bios = boot_params.apm_bios_info;
- ist_info = boot_params.ist_info;
- 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];
- }
-#endif
- saved_video_mode = boot_params.hdr.vid_mode;
- bootloader_type = boot_params.hdr.type_of_loader;
- if ((bootloader_type >> 4) == 0xe) {
- bootloader_type &= 0xf;
- bootloader_type |= (boot_params.hdr.ext_loader_type+0x10) << 4;
- }
- bootloader_version = bootloader_type & 0xf;
- bootloader_version |= boot_params.hdr.ext_loader_ver << 4;
-
-#ifdef CONFIG_BLK_DEV_RAM
- 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
-#ifdef CONFIG_EFI
- if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
- "EL32", 4)) {
- efi_enabled = 1;
- efi_64bit = false;
- } else if (!strncmp((char *)&boot_params.efi_info.efi_loader_signature,
- "EL64", 4)) {
- efi_enabled = 1;
- efi_64bit = true;
- }
- if (efi_enabled && efi_memblock_x86_reserve_range())
- efi_enabled = 0;
-#endif
-
- x86_init.oem.arch_setup();
-
- iomem_resource.end = (1ULL << boot_cpu_data.x86_phys_bits) - 1;
- setup_memory_map();
- parse_setup_data();
- /* update the e820_saved too */
- e820_reserve_setup_data();
-
- copy_edd();
-
- if (!boot_params.hdr.root_flags)
- root_mountflags &= ~MS_RDONLY;
- init_mm.start_code = (unsigned long) _text;
- init_mm.end_code = (unsigned long) _etext;
- init_mm.end_data = (unsigned long) _edata;
- init_mm.brk = _brk_end;
-
- code_resource.start = virt_to_phys(_text);
- code_resource.end = virt_to_phys(_etext)-1;
- data_resource.start = virt_to_phys(_etext);
- data_resource.end = virt_to_phys(_edata)-1;
- bss_resource.start = virt_to_phys(&__bss_start);
- bss_resource.end = virt_to_phys(&__bss_stop)-1;
-
-#ifdef CONFIG_CMDLINE_BOOL
-#ifdef CONFIG_CMDLINE_OVERRIDE
- strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
-#else
- if (builtin_cmdline[0]) {
- /* append boot loader cmdline to builtin */
- strlcat(builtin_cmdline, " ", COMMAND_LINE_SIZE);
- strlcat(builtin_cmdline, boot_command_line, COMMAND_LINE_SIZE);
- strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
- }
-#endif
-#endif
-
- strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
- *cmdline_p = command_line;
-
- /*
- * x86_configure_nx() is called before parse_early_param() to detect
- * whether hardware doesn't support NX (so that the early EHCI debug
- * console setup can safely call set_fixmap()). It may then be called
- * again from within noexec_setup() during parsing early parameters
- * to honor the respective command line option.
- */
- x86_configure_nx();
-
- parse_early_param();
-
- x86_report_nx();
-
- /* after early param, so could get panic from serial */
- memblock_x86_reserve_range_setup_data();
-
- if (acpi_mps_check()) {
-#ifdef CONFIG_X86_LOCAL_APIC
- disable_apic = 1;
-#endif
- setup_clear_cpu_cap(X86_FEATURE_APIC);
- }
-
-#ifdef CONFIG_PCI
- if (pci_early_dump_regs)
- early_dump_pci_devices();
-#endif
-
- finish_e820_parsing();
-
- if (efi_enabled)
- efi_init();
-
- dmi_scan_machine();
-
- /*
- * VMware detection requires dmi to be available, so this
- * needs to be done after dmi_scan_machine, for the BP.
- */
- init_hypervisor_platform();
-
- x86_init.resources.probe_roms();
-
- /* after parse_early_param, so could debug it */
- insert_resource(&iomem_resource, &code_resource);
- insert_resource(&iomem_resource, &data_resource);
- insert_resource(&iomem_resource, &bss_resource);
-
- trim_bios_range();
-#ifdef CONFIG_X86_32
- if (ppro_with_ram_bug()) {
- e820_update_range(0x70000000ULL, 0x40000ULL, E820_RAM,
- E820_RESERVED);
- sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map);
- printk(KERN_INFO "fixed physical RAM map:\n");
- e820_print_map("bad_ppro");
- }
-#else
- early_gart_iommu_check();
-#endif
-
- /*
- * partially used pages are not usable - thus
- * we are rounding upwards:
- */
- max_pfn = e820_end_of_ram_pfn();
-
- /* update e820 for memory not covered by WB MTRRs */
- mtrr_bp_init();
- if (mtrr_trim_uncached_memory(max_pfn))
- max_pfn = e820_end_of_ram_pfn();
-
-#ifdef CONFIG_X86_32
- /* max_low_pfn get updated here */
- find_low_pfn_range();
-#else
- num_physpages = max_pfn;
-
- check_x2apic();
-
- /* How many end-of-memory variables you have, grandma! */
- /* need this before calling reserve_initrd */
- if (max_pfn > (1UL<<(32 - PAGE_SHIFT)))
- max_low_pfn = e820_end_of_low_ram_pfn();
- else
- max_low_pfn = max_pfn;
-
- high_memory = (void *)__va(max_pfn * PAGE_SIZE - 1) + 1;
-#endif
-
- /*
- * Find and reserve possible boot-time SMP configuration:
- */
- find_smp_config();
-
- reserve_ibft_region();
-
- /*
- * Need to conclude brk, before memblock_x86_fill()
- * it could use memblock_find_in_range, could overlap with
- * brk area.
- */
- reserve_brk();
-
- cleanup_highmap();
-
- memblock.current_limit = get_max_mapped();
- memblock_x86_fill();
-
- /*
- * The EFI specification says that boot service code won't be called
- * after ExitBootServices(). This is, in fact, a lie.
- */
- if (efi_enabled)
- efi_reserve_boot_services();
-
- /* preallocate 4k for mptable mpc */
- early_reserve_e820_mpc_new();
-
-#ifdef CONFIG_X86_CHECK_BIOS_CORRUPTION
- setup_bios_corruption_check();
-#endif
-
- printk(KERN_DEBUG "initial memory mapped : 0 - %08lx\n",
- max_pfn_mapped<<PAGE_SHIFT);
-
- setup_trampolines();
-
- init_gbpages();
-
- /* max_pfn_mapped is updated here */
- max_low_pfn_mapped = init_memory_mapping(0, max_low_pfn<<PAGE_SHIFT);
- max_pfn_mapped = max_low_pfn_mapped;
-
-#ifdef CONFIG_X86_64
- if (max_pfn > max_low_pfn) {
- max_pfn_mapped = init_memory_mapping(1UL<<32,
- max_pfn<<PAGE_SHIFT);
- /* can we preseve max_low_pfn ?*/
- max_low_pfn = max_pfn;
- }
-#endif
- memblock.current_limit = get_max_mapped();
-
- /*
- * NOTE: On x86-32, only from this point on, fixmaps are ready for use.
- */
-
-#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
- if (init_ohci1394_dma_early)
- init_ohci1394_dma_on_all_controllers();
-#endif
- /* Allocate bigger log buffer */
- setup_log_buf(1);
-
- reserve_initrd();
-
- reserve_crashkernel();
-
- vsmp_init();
-
- io_delay_init();
-
- /*
- * Parse the ACPI tables for possible boot-time SMP configuration.
- */
- acpi_boot_table_init();
-
- early_acpi_boot_init();
-
- initmem_init();
- memblock_find_dma_reserve();
-
-#ifdef CONFIG_KVM_CLOCK
- kvmclock_init();
-#endif
-
- x86_init.paging.pagetable_setup_start(swapper_pg_dir);
- paging_init();
- x86_init.paging.pagetable_setup_done(swapper_pg_dir);
-
- if (boot_cpu_data.cpuid_level >= 0) {
- /* A CPU has %cr4 if and only if it has CPUID */
- mmu_cr4_features = read_cr4();
- }
-
-#ifdef CONFIG_X86_32
- /* sync back kernel address range */
- clone_pgd_range(initial_page_table + KERNEL_PGD_BOUNDARY,
- swapper_pg_dir + KERNEL_PGD_BOUNDARY,
- KERNEL_PGD_PTRS);
-#endif
-
- tboot_probe();
-
-#ifdef CONFIG_X86_64
- map_vsyscall();
-#endif
-
- generic_apic_probe();
-
- early_quirks();
-
- /*
- * Read APIC and some other early information from ACPI tables.
- */
- acpi_boot_init();
- sfi_init();
- x86_dtb_init();
-
- /*
- * get boot-time SMP configuration:
- */
- if (smp_found_config)
- get_smp_config();
-
- prefill_possible_map();
-
- init_cpu_to_node();
-
- init_apic_mappings();
- ioapic_and_gsi_init();
-
- kvm_guest_init();
-
- e820_reserve_resources();
- e820_mark_nosave_regions(max_low_pfn);
-
- x86_init.resources.reserve_resources();
-
- e820_setup_gap();
-
-#ifdef CONFIG_VT
-#if defined(CONFIG_VGA_CONSOLE)
- if (!efi_enabled || (efi_mem_type(0xa0000) != EFI_CONVENTIONAL_MEMORY))
- conswitchp = &vga_con;
-#elif defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-#endif
-#endif
- x86_init.oem.banner();
-
- x86_init.timers.wallclock_init();
-
- x86_platform.wallclock_init();
-
- mcheck_init();
-
- arch_init_ideal_nops();
-}
-
-#ifdef CONFIG_X86_32
-
-static struct resource video_ram_resource = {
- .name = "Video RAM area",
- .start = 0xa0000,
- .end = 0xbffff,
- .flags = IORESOURCE_BUSY | IORESOURCE_MEM
-};
-
-void __init i386_reserve_resources(void)
-{
- request_resource(&iomem_resource, &video_ram_resource);
- reserve_standard_io_resources();
-}
-
-#endif /* CONFIG_X86_32 */