arch/x86/kernel/x86_init.c

   1 /*
   2  * Copyright (C) 2009 Thomas Gleixner <tglx@linutronix.de>
   3  *
   4  *  For licencing details see kernel-base/COPYING
   5  */
   6 #include <linux/init.h>
   7
   8 #include <asm/bios_ebda.h>
   9 #include <asm/paravirt.h>
  10 #include <asm/mpspec.h>
  11 #include <asm/setup.h>
  12 #include <asm/apic.h>
  13 #include <asm/e820.h>
  14 #include <asm/irq.h>
  15
  16 void __cpuinit x86_init_noop(void) { }
  17 void __init x86_init_uint_noop(unsigned int unused) { }
  18 void __init x86_init_pgd_noop(pgd_t *unused) { }
  19
  20 /*
  21  * The platform setup functions are preset with the default functions
  22  * for standard PC hardware.
  23  */
  24 struct __initdata x86_init_ops x86_init = {
  25
  26         .resources = {
  27                 .probe_roms             = x86_init_noop,
  28                 .reserve_resources      = reserve_standard_io_resources,
  29                 .reserve_ebda_region    = reserve_ebda_region,
  30                 .memory_setup           = default_machine_specific_memory_setup,
  31         },
  32
  33         .mpparse = {
  34                 .mpc_record             = x86_init_uint_noop,
  35                 .setup_ioapic_ids       = x86_init_noop,
  36                 .mpc_apic_id            = default_mpc_apic_id,
  37                 .smp_read_mpc_oem       = default_smp_read_mpc_oem,
  38                 .mpc_oem_bus_info       = default_mpc_oem_bus_info,
  39                 .find_smp_config        = default_find_smp_config,
  40                 .get_smp_config         = default_get_smp_config,
  41         },
  42
  43         .irqs = {
  44                 .pre_vector_init        = init_ISA_irqs,
  45                 .intr_init              = native_init_IRQ,
  46                 .trap_init              = x86_init_noop,
  47         },
  48
  49         .oem = {
  50                 .arch_setup             = x86_init_noop,
  51                 .banner                 = default_banner,
  52         },
  53
  54         .paging = {
  55                 .pagetable_setup_start  = native_pagetable_setup_start,
  56                 .pagetable_setup_done   = native_pagetable_setup_done,
  57         },
  58
  59         .timers = {
  60                 .setup_percpu_clockev   = setup_boot_APIC_clock,
  61         },
  62 };
  63
  64 __cpuinitdata struct x86_cpuinit_ops x86_cpuinit = {
  65         .setup_percpu_clockev           = setup_secondary_APIC_clock,
  66 };