summaryrefslogtreecommitdiff
path: root/arch/x86/kernel/setup_32.c
diff options
context:
space:
mode:
authorYinghai Lu <yhlu.kernel@gmail.com>2008-06-25 17:54:23 -0700
committerIngo Molnar <mingo@elte.hu>2008-07-08 13:10:49 +0200
commit55f262391a2365d657a00ed68edd1a51bca66af5 (patch)
tree8487352e8737ceaf2a10703dcaae8d0ec9284949 /arch/x86/kernel/setup_32.c
parentf2f865fe6e6e40ddf37f887eb427263d83bb925d (diff)
x86: rename setup_32.c to setup.c
and let 64 bit use that instead of setup_64.c [ mingo@elte.hu ] x86: build fix fix: arch/x86/kernel/setup.c: In function ‘setup_arch': arch/x86/kernel/setup.c:561: error: implicit declaration of function ‘efi_reserve_early' and: arch/x86/kernel/setup.c:766: error: implicit declaration of function 'init_cpu_to_node' and: arch/x86/kernel/setup.c:676: warning: operation on 'max_pfn_mapped' may be undefined Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/setup_32.c')
-rw-r--r--arch/x86/kernel/setup_32.c671
1 files changed, 0 insertions, 671 deletions
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
deleted file mode 100644
index 4d5f8a3eb7ea..000000000000
--- a/arch/x86/kernel/setup_32.c
+++ /dev/null
@@ -1,671 +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/apm_bios.h>
-#include <linux/initrd.h>
-#include <linux/bootmem.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/slab.h>
-#include <linux/user.h>
-#include <linux/delay.h>
-#include <linux/highmem.h>
-
-#include <linux/kallsyms.h>
-#include <linux/edd.h>
-#include <linux/iscsi_ibft.h>
-#include <linux/kexec.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 <video/edid.h>
-
-#include <asm/mtrr.h>
-#include <asm/apic.h>
-#include <asm/e820.h>
-#include <asm/mpspec.h>
-#include <asm/setup.h>
-#include <asm/arch_hooks.h>
-#include <asm/sections.h>
-#include <asm/dmi.h>
-#include <asm/io_apic.h>
-#include <asm/ist.h>
-#include <asm/vmi.h>
-#include <setup_arch.h>
-#include <asm/bios_ebda.h>
-#include <asm/cacheflush.h>
-#include <asm/processor.h>
-#include <asm/bugs.h>
-
-#include <asm/system.h>
-#include <asm/vsyscall.h>
-#include <asm/smp.h>
-#include <asm/desc.h>
-#include <asm/dma.h>
-#include <asm/gart.h>
-#include <asm/mmu_context.h>
-#include <asm/proto.h>
-
-#include <mach_apic.h>
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else
-#define ARCH_SETUP
-#endif
-
-#include <asm/percpu.h>
-#include <asm/sections.h>
-#include <asm/topology.h>
-#include <asm/apicdef.h>
-#ifdef CONFIG_X86_32
-#include <asm/highmem.h>
-#endif
-
-/* This value is set up by the early boot code to point to the value
- immediately after the boot time page tables. It contains a *physical*
- address, and must not be in the .bss segment! */
-unsigned long init_pg_tables_start __initdata = ~0UL;
-unsigned long init_pg_tables_end __initdata = ~0UL;
-
-/*
- * 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
-static struct resource video_ram_resource = {
- .name = "Video RAM area",
- .start = 0xa0000,
- .end = 0xbffff,
- .flags = IORESOURCE_BUSY | IORESOURCE_MEM
-};
-
-/* 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;
-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 as an integer, for the benefit of proc_dointvec */
-int bootloader_type;
-
-/*
- * Early DMI memory
- */
-int dmi_alloc_index;
-char dmi_alloc_data[DMI_MAX_DATA];
-
-/*
- * 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];
-
-#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 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 copy_edd(void)
-{
-}
-#endif
-
-#ifdef CONFIG_BLK_DEV_INITRD
-
-#ifdef CONFIG_X86_32
-
-#define MAX_MAP_CHUNK (NR_FIX_BTMAPS << PAGE_SHIFT)
-static void __init relocate_initrd(void)
-{
-
- u64 ramdisk_image = boot_params.hdr.ramdisk_image;
- u64 ramdisk_size = boot_params.hdr.ramdisk_size;
- u64 end_of_lowmem = max_low_pfn << PAGE_SHIFT;
- u64 ramdisk_here;
- unsigned long slop, clen, mapaddr;
- char *p, *q;
-
- /* We need to move the initrd down into lowmem */
- ramdisk_here = find_e820_area(0, end_of_lowmem, ramdisk_size,
- PAGE_SIZE);
-
- if (ramdisk_here == -1ULL)
- 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. */
- reserve_early(ramdisk_here, ramdisk_here + ramdisk_size,
- "NEW RAMDISK");
- 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_ioremap(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);
-}
-#endif
-
-static void __init reserve_initrd(void)
-{
- u64 ramdisk_image = boot_params.hdr.ramdisk_image;
- u64 ramdisk_size = boot_params.hdr.ramdisk_size;
- u64 ramdisk_end = ramdisk_image + ramdisk_size;
- u64 end_of_lowmem = max_low_pfn << 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)) {
- free_early(ramdisk_image, ramdisk_end);
- 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;
- }
-
-#ifdef CONFIG_X86_32
- relocate_initrd();
-#else
- printk(KERN_ERR "initrd extends beyond end of memory "
- "(0x%08llx > 0x%08llx)\ndisabling initrd\n",
- ramdisk_end, end_of_lowmem);
- initrd_start = 0;
-#endif
- free_early(ramdisk_image, ramdisk_end);
-}
-#else
-static void __init reserve_initrd(void)
-{
-}
-#endif /* CONFIG_BLK_DEV_INITRD */
-
-/*
- * 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));
- pre_setup_arch_hook();
- early_cpu_init();
- early_ioremap_init();
- reserve_setup_data();
-#else
- printk(KERN_INFO "Command line: %s\n", boot_command_line);
-#endif
-
- 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;
-
-#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,
-#ifdef CONFIG_X86_32
- "EL32",
-#else
- "EL64",
-#endif
- 4)) {
- efi_enabled = 1;
- efi_reserve_early();
- }
-#endif
-
- ARCH_SETUP
-
- setup_memory_map();
- 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;
-#ifdef CONFIG_X86_32
- init_mm.brk = init_pg_tables_end + PAGE_OFFSET;
-#else
- init_mm.brk = (unsigned long) &_end;
-#endif
-
- 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_X86_64
- early_cpu_init();
-#endif
- strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
- *cmdline_p = command_line;
-
- parse_setup_data();
-
- parse_early_param();
-
- if (acpi_mps_check()) {
-#ifdef CONFIG_X86_LOCAL_APIC
-#ifdef CONFIG_X86_32
- enable_local_apic = -1;
-#else
- disable_apic = 1;
-#endif
-#endif
- clear_cpu_cap(&boot_cpu_data, X86_FEATURE_APIC);
- }
-
- finish_e820_parsing();
-
-#ifdef CONFIG_X86_32
- probe_roms();
-#else
-# ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
- if (init_ohci1394_dma_early)
- init_ohci1394_dma_on_all_controllers();
-# endif
-#endif
-
- /* 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);
-
- if (efi_enabled)
- efi_init();
-
-#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
-
- e820_register_active_regions(0, 0, -1UL);
- /*
- * partially used pages are not usable - thus
- * we are rounding upwards:
- */
- max_pfn = e820_end_of_ram();
-
- /* preallocate 4k for mptable mpc */
- early_reserve_e820_mpc_new();
- /* update e820 for memory not covered by WB MTRRs */
- mtrr_bp_init();
- if (mtrr_trim_uncached_memory(max_pfn)) {
- remove_all_active_ranges();
- e820_register_active_regions(0, 0, -1UL);
- max_pfn = e820_end_of_ram();
- }
-
-#ifdef CONFIG_X86_32
- /* max_low_pfn get updated here */
- find_low_pfn_range();
-#else
- num_physpages = max_pfn;
-
- check_efer();
-
- /* How many end-of-memory variables you have, grandma! */
- /* need this before calling reserve_initrd */
- max_low_pfn = max_pfn;
- high_memory = (void *)__va(max_pfn * PAGE_SIZE - 1) + 1;
-#endif
-
- /* max_pfn_mapped is updated here */
-#ifdef CONFIG_X86_64
- max_pfn_mapped =
-#endif
- max_pfn_mapped = init_memory_mapping(0, (max_low_pfn << PAGE_SHIFT));
-
- reserve_initrd();
-
-#ifdef CONFIG_X86_64
- vsmp_init();
-#endif
-
- dmi_scan_machine();
-
- io_delay_init();
-
- /*
- * Parse the ACPI tables for possible boot-time SMP configuration.
- */
- acpi_boot_table_init();
-
-#ifdef CONFIG_X86_64
- /* Remove active ranges so rediscovery with NUMA-awareness happens */
- remove_all_active_ranges();
-#endif
-
-#ifdef CONFIG_ACPI_NUMA
- /*
- * Parse SRAT to discover nodes.
- */
- acpi_numa_init();
-#endif
-
- initmem_init(0, max_pfn);
-
-#ifdef CONFIG_X86_64
- dma32_reserve_bootmem();
-#endif
-
-#ifdef CONFIG_ACPI_SLEEP
- /*
- * Reserve low memory region for sleep support.
- */
- acpi_reserve_bootmem();
-#endif
-#if defined(CONFIG_X86_FIND_SMP_CONFIG) && defined(CONFIG_X86_32) || \
- defined(CONFIG_X86_MPPARSE) && defined(CONFIG_X86_64)
- /*
- * Find and reserve possible boot-time SMP configuration:
- */
- find_smp_config();
-#endif
- reserve_crashkernel();
-
- reserve_ibft_region();
-
-#ifdef CONFIG_KVM_CLOCK
- kvmclock_init();
-#endif
-
-#if defined(CONFIG_VMI) && defined(CONFIG_X86_32)
- /*
- * Must be after max_low_pfn is determined, and before kernel
- * pagetables are setup.
- */
- vmi_init();
-#endif
-
- paging_init();
-
-#ifdef CONFIG_X86_64
- map_vsyscall();
-#endif
-
- /*
- * NOTE: On x86-32, only from this point on, fixmaps are ready for use.
- */
-
-#if defined(CONFIG_PROVIDE_OHCI1394_DMA_INIT) && defined(CONFIG_X86_32)
- if (init_ohci1394_dma_early)
- init_ohci1394_dma_on_all_controllers();
-#endif
-
-#ifdef CONFIG_X86_GENERICARCH
- generic_apic_probe();
-#endif
-
- early_quirks();
-
- /*
- * Read APIC and some other early information from ACPI tables.
- */
- acpi_boot_init();
-
-#ifdef CONFIG_X86_64
- init_cpu_to_node();
-#endif
-
-#if defined(CONFIG_X86_MPPARSE) || defined(CONFIG_X86_VISWS)
- /*
- * get boot-time SMP configuration:
- */
- if (smp_found_config)
- get_smp_config();
-#endif
-
-#ifdef CONFIG_X86_64
- init_apic_mappings();
- ioapic_init_mappings();
-#else
-# if defined(CONFIG_SMP) && defined(CONFIG_X86_PC)
- if (def_to_bigsmp)
- printk(KERN_WARNING "More than 8 CPUs detected and "
- "CONFIG_X86_PC cannot handle it.\nUse "
- "CONFIG_X86_GENERICARCH or CONFIG_X86_BIGSMP.\n");
-# endif
-#endif
- kvm_guest_init();
-
- e820_reserve_resources();
- e820_mark_nosave_regions(max_low_pfn);
-
-#ifdef CONFIG_X86_32
- request_resource(&iomem_resource, &video_ram_resource);
-#endif
- reserve_standard_io_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
-}
-