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
  19 static void default_vector_allocation_domain(int cpu, struct cpumask *retmask)
  20 {
  21         /*
  22          * Careful. Some cpus do not strictly honor the set of cpus
  23          * specified in the interrupt destination when using lowest
  24          * priority interrupt delivery mode.
  25          *
  26          * In particular there was a hyperthreading cpu observed to
  27          * deliver interrupts to the wrong hyperthread when only one
  28          * hyperthread was specified in the interrupt desitination.
  29          */
  30         *retmask = (cpumask_t) { { [0] = APIC_ALL_CPUS } };
  31 }
  32
  33 /* should be called last. */
  34 static int probe_default(void)
  35 {
  36         return 1;
  37 }
  38
  39 struct genapic apic_default = {
  40
  41         .name                           = "default",
  42         .probe                          = probe_default,
  43         .acpi_madt_oem_check            = NULL,
  44         .apic_id_registered             = default_apic_id_registered,
  45
  46         .irq_delivery_mode              = dest_LowestPrio,
  47         /* logical delivery broadcast to all CPUs: */
  48         .irq_dest_mode                  = 1,
  49
  50         .target_cpus                    = default_target_cpus,
  51         .disable_esr                    = 0,
  52         .dest_logical                   = APIC_DEST_LOGICAL,
  53         .check_apicid_used              = default_check_apicid_used,
  54         .check_apicid_present           = default_check_apicid_present,
  55
  56         .vector_allocation_domain       = default_vector_allocation_domain,
  57         .init_apic_ldr                  = default_init_apic_ldr,
  58
  59         .ioapic_phys_id_map             = default_ioapic_phys_id_map,
  60         .setup_apic_routing             = default_setup_apic_routing,
  61         .multi_timer_check              = NULL,
  62         .apicid_to_node                 = default_apicid_to_node,
  63         .cpu_to_logical_apicid          = default_cpu_to_logical_apicid,
  64         .cpu_present_to_apicid          = default_cpu_present_to_apicid,
  65         .apicid_to_cpu_present          = default_apicid_to_cpu_present,
  66         .setup_portio_remap             = NULL,
  67         .check_phys_apicid_present      = default_check_phys_apicid_present,
  68         .enable_apic_mode               = NULL,
  69         .phys_pkg_id                    = default_phys_pkg_id,
  70         .mps_oem_check                  = NULL,
  71
  72         .get_apic_id                    = default_get_apic_id,
  73         .set_apic_id                    = NULL,
  74         .apic_id_mask                   = 0x0F << 24,
  75
  76         .cpu_mask_to_apicid             = default_cpu_mask_to_apicid,
  77         .cpu_mask_to_apicid_and         = default_cpu_mask_to_apicid_and,
  78
  79         .send_IPI_mask                  = default_send_IPI_mask,
  80         .send_IPI_mask_allbutself       = NULL,
  81         .send_IPI_allbutself            = default_send_IPI_allbutself,
  82         .send_IPI_all                   = default_send_IPI_all,
  83         .send_IPI_self                  = NULL,
  84
  85         .wakeup_cpu                     = NULL,
  86         .trampoline_phys_low            = DEFAULT_TRAMPOLINE_PHYS_LOW,
  87         .trampoline_phys_high           = DEFAULT_TRAMPOLINE_PHYS_HIGH,
  88
  89         .wait_for_init_deassert         = default_wait_for_init_deassert,
  90
  91         .smp_callin_clear_local_apic    = NULL,
  92         .store_NMI_vector               = NULL,
  93         .inquire_remote_apic            = default_inquire_remote_apic,
  94 };