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 #include <asm/pat.h>
  17 #include <asm/tsc.h>
  18
  19 void __cpuinit x86_init_noop(void) { }
  20 void __init x86_init_uint_noop(unsigned int unused) { }
  21 void __init x86_init_pgd_noop(pgd_t *unused) { }
  22
  23 /*
  24  * The platform setup functions are preset with the default functions
  25  * for standard PC hardware.
  26  */
  27 struct x86_init_ops x86_init __initdata = {
  28
  29         .resources = {
  30                 .probe_roms             = x86_init_noop,
  31                 .reserve_resources      = reserve_standard_io_resources,
  32                 .memory_setup           = default_machine_specific_memory_setup,
  33         },
  34
  35         .mpparse = {
  36                 .mpc_record             = x86_init_uint_noop,
  37                 .setup_ioapic_ids       = x86_init_noop,
  38                 .mpc_apic_id            = default_mpc_apic_id,
  39                 .smp_read_mpc_oem       = default_smp_read_mpc_oem,
  40                 .mpc_oem_bus_info       = default_mpc_oem_bus_info,
  41                 .find_smp_config        = default_find_smp_config,
  42                 .get_smp_config         = default_get_smp_config,
  43         },
  44
  45         .irqs = {
  46                 .pre_vector_init        = init_ISA_irqs,
  47                 .intr_init              = native_init_IRQ,
  48                 .trap_init              = x86_init_noop,
  49         },
  50
  51         .oem = {
  52                 .arch_setup             = x86_init_noop,
  53                 .banner                 = default_banner,
  54         },
  55
  56         .paging = {
  57                 .pagetable_setup_start  = native_pagetable_setup_start,
  58                 .pagetable_setup_done   = native_pagetable_setup_done,
  59         },
  60
  61         .timers = {
  62                 .setup_percpu_clockev   = setup_boot_APIC_clock,
  63                 .tsc_pre_init           = x86_init_noop,
  64                 .timer_init             = hpet_time_init,
  65         },
  66 };
  67
  68 struct x86_cpuinit_ops x86_cpuinit __cpuinitdata = {
  69         .setup_percpu_clockev           = setup_secondary_APIC_clock,
  70 };
  71
  72 struct x86_platform_ops x86_platform = {
  73         .calibrate_tsc                  = native_calibrate_tsc,
  74         .get_wallclock                  = mach_get_cmos_time,
  75         .set_wallclock                  = mach_set_rtc_mmss,
  76         .is_untracked_pat_range         = is_ISA_range,
  77 };