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/time.h>
  15 #include <asm/irq.h>
  16
  17 void __cpuinit x86_init_noop(void) { }
  18 void __init x86_init_uint_noop(unsigned int unused) { }
  19 void __init x86_init_pgd_noop(pgd_t *unused) { }
  20
  21 /*
  22  * The platform setup functions are preset with the default functions
  23  * for standard PC hardware.
  24  */
  25 struct __initdata x86_init_ops x86_init = {
  26
  27         .resources = {
  28                 .probe_roms             = x86_init_noop,
  29                 .reserve_resources      = reserve_standard_io_resources,
  30                 .reserve_ebda_region    = reserve_ebda_region,
  31                 .memory_setup           = default_machine_specific_memory_setup,
  32         },
  33
  34         .mpparse = {
  35                 .mpc_record             = x86_init_uint_noop,
  36                 .setup_ioapic_ids       = x86_init_noop,
  37                 .mpc_apic_id            = default_mpc_apic_id,
  38                 .smp_read_mpc_oem       = default_smp_read_mpc_oem,
  39                 .mpc_oem_bus_info       = default_mpc_oem_bus_info,
  40                 .find_smp_config        = default_find_smp_config,
  41                 .get_smp_config         = default_get_smp_config,
  42         },
  43
  44         .irqs = {
  45                 .pre_vector_init        = init_ISA_irqs,
  46                 .intr_init              = native_init_IRQ,
  47                 .trap_init              = x86_init_noop,
  48         },
  49
  50         .oem = {
  51                 .arch_setup             = x86_init_noop,
  52                 .banner                 = default_banner,
  53         },
  54
  55         .paging = {
  56                 .pagetable_setup_start  = native_pagetable_setup_start,
  57                 .pagetable_setup_done   = native_pagetable_setup_done,
  58         },
  59
  60         .timers = {
  61                 .setup_percpu_clockev   = setup_boot_APIC_clock,
  62                 .tsc_pre_init           = x86_init_noop,
  63                 .timer_init             = hpet_time_init,
  64         },
  65 };
  66
  67 __cpuinitdata struct x86_cpuinit_ops x86_cpuinit = {
  68         .setup_percpu_clockev           = setup_secondary_APIC_clock,
  69 };