arch/x86/mach-generic/default.c

   1 /*
   2  * Default generic APIC driver. This handles up to 8 CPUs.
   3  */
   4 #define APIC_DEFINITION 1
   5 #include <linux/threads.h>
   6 #include <linux/cpumask.h>
   7 #include <asm/mpspec.h>
   8 #include <asm/mach-default/mach_apicdef.h>
   9 #include <asm/genapic.h>
  10 #include <asm/fixmap.h>
  11 #include <asm/apicdef.h>
  12 #include <linux/kernel.h>
  13 #include <linux/string.h>
  14 #include <linux/smp.h>
  15 #include <linux/init.h>
  16 #include <asm/mach-default/mach_apic.h>
  17 #include <asm/mach-default/mach_ipi.h>
  18 #include <asm/mach-default/mach_mpparse.h>
  19 #include <asm/mach-default/mach_wakecpu.h>
  20
  21 static void default_vector_allocation_domain(int cpu, struct cpumask *retmask)
  22 {
  23         /*
  24          * Careful. Some cpus do not strictly honor the set of cpus
  25          * specified in the interrupt destination when using lowest
  26          * priority interrupt delivery mode.
  27          *
  28          * In particular there was a hyperthreading cpu observed to
  29          * deliver interrupts to the wrong hyperthread when only one
  30          * hyperthread was specified in the interrupt desitination.
  31          */
  32         *retmask = (cpumask_t) { { [0] = APIC_ALL_CPUS } };
  33 }
  34
  35 /* should be called last. */
  36 static int probe_default(void)
  37 {
  38         return 1;
  39 }
  40
  41 struct genapic apic_default = {
  42
  43         .name                           = "default",
  44         .probe                          = probe_default,
  45         .acpi_madt_oem_check            = NULL,
  46         .apic_id_registered             = default_apic_id_registered,
  47
  48         .irq_delivery_mode              = dest_LowestPrio,
  49         /* logical delivery broadcast to all CPUs: */
  50         .irq_dest_mode                  = 1,
  51
  52         .target_cpus                    = default_target_cpus,
  53         .disable_esr                    = 0,
  54         .dest_logical                   = APIC_DEST_LOGICAL,
  55         .check_apicid_used              = default_check_apicid_used,
  56         .check_apicid_present           = default_check_apicid_present,
  57
  58         .vector_allocation_domain       = default_vector_allocation_domain,
  59         .init_apic_ldr                  = default_init_apic_ldr,
  60
  61         .ioapic_phys_id_map             = default_ioapic_phys_id_map,
  62         .setup_apic_routing             = default_setup_apic_routing,
  63         .multi_timer_check              = NULL,
  64         .apicid_to_node                 = default_apicid_to_node,
  65         .cpu_to_logical_apicid          = default_cpu_to_logical_apicid,
  66         .cpu_present_to_apicid          = cpu_present_to_apicid,
  67         .apicid_to_cpu_present          = apicid_to_cpu_present,
  68         .setup_portio_remap             = setup_portio_remap,
  69         .check_phys_apicid_present      = check_phys_apicid_present,
  70         .enable_apic_mode               = enable_apic_mode,
  71         .phys_pkg_id                    = phys_pkg_id,
  72         .mps_oem_check                  = mps_oem_check,
  73
  74         .get_apic_id                    = get_apic_id,
  75         .set_apic_id                    = NULL,
  76         .apic_id_mask                   = APIC_ID_MASK,
  77
  78         .cpu_mask_to_apicid             = cpu_mask_to_apicid,
  79         .cpu_mask_to_apicid_and         = cpu_mask_to_apicid_and,
  80
  81         .send_IPI_mask                  = send_IPI_mask,
  82         .send_IPI_mask_allbutself       = NULL,
  83         .send_IPI_allbutself            = send_IPI_allbutself,
  84         .send_IPI_all                   = send_IPI_all,
  85         .send_IPI_self                  = NULL,
  86
  87         .wakeup_cpu                     = NULL,
  88         .trampoline_phys_low            = TRAMPOLINE_PHYS_LOW,
  89         .trampoline_phys_high           = TRAMPOLINE_PHYS_HIGH,
  90         .wait_for_init_deassert         = wait_for_init_deassert,
  91         .smp_callin_clear_local_apic    = smp_callin_clear_local_apic,
  92         .store_NMI_vector               = store_NMI_vector,
  93         .restore_NMI_vector             = restore_NMI_vector,
  94         .inquire_remote_apic            = inquire_remote_apic,
  95 };