arch/x86/mach-generic/summit.c

   1 /*
   2  * APIC driver for the IBM "Summit" chipset.
   3  */
   4 #define APIC_DEFINITION 1
   5 #include <linux/threads.h>
   6 #include <linux/cpumask.h>
   7 #include <asm/mpspec.h>
   8 #include <asm/genapic.h>
   9 #include <asm/fixmap.h>
  10 #include <asm/apicdef.h>
  11 #include <linux/kernel.h>
  12 #include <linux/string.h>
  13 #include <linux/init.h>
  14 #include <asm/summit/apicdef.h>
  15 #include <linux/smp.h>
  16 #include <asm/summit/apic.h>
  17 #include <asm/summit/ipi.h>
  18 #include <asm/summit/mpparse.h>
  19 #include <asm/mach-default/mach_wakecpu.h>
  20
  21 static int probe_summit(void)
  22 {
  23         /* probed later in mptable/ACPI hooks */
  24         return 0;
  25 }
  26
  27 static void summit_vector_allocation_domain(int cpu, cpumask_t *retmask)
  28 {
  29         /* Careful. Some cpus do not strictly honor the set of cpus
  30          * specified in the interrupt destination when using lowest
  31          * priority interrupt delivery mode.
  32          *
  33          * In particular there was a hyperthreading cpu observed to
  34          * deliver interrupts to the wrong hyperthread when only one
  35          * hyperthread was specified in the interrupt desitination.
  36          */
  37         *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
  38 }
  39
  40 struct genapic apic_summit = {
  41
  42         .name                           = "summit",
  43         .probe                          = probe_summit,
  44         .acpi_madt_oem_check            = summit_acpi_madt_oem_check,
  45         .apic_id_registered             = summit_apic_id_registered,
  46
  47         .irq_delivery_mode              = dest_LowestPrio,
  48         /* logical delivery broadcast to all CPUs: */
  49         .irq_dest_mode                  = 1,
  50
  51         .target_cpus                    = summit_target_cpus,
  52         .disable_esr                    = 1,
  53         .dest_logical                   = APIC_DEST_LOGICAL,
  54         .check_apicid_used              = summit_check_apicid_used,
  55         .check_apicid_present           = summit_check_apicid_present,
  56
  57         .vector_allocation_domain       = summit_vector_allocation_domain,
  58         .init_apic_ldr                  = summit_init_apic_ldr,
  59
  60         .ioapic_phys_id_map             = summit_ioapic_phys_id_map,
  61         .setup_apic_routing             = summit_setup_apic_routing,
  62         .multi_timer_check              = NULL,
  63         .apicid_to_node                 = summit_apicid_to_node,
  64         .cpu_to_logical_apicid          = summit_cpu_to_logical_apicid,
  65         .cpu_present_to_apicid          = summit_cpu_present_to_apicid,
  66         .apicid_to_cpu_present          = summit_apicid_to_cpu_present,
  67         .setup_portio_remap             = NULL,
  68         .check_phys_apicid_present      = summit_check_phys_apicid_present,
  69         .enable_apic_mode               = NULL,
  70         .phys_pkg_id                    = summit_phys_pkg_id,
  71         .mps_oem_check                  = summit_mps_oem_check,
  72
  73         .get_apic_id                    = summit_get_apic_id,
  74         .set_apic_id                    = NULL,
  75         .apic_id_mask                   = 0xFF << 24,
  76
  77         .cpu_mask_to_apicid             = summit_cpu_mask_to_apicid,
  78         .cpu_mask_to_apicid_and         = summit_cpu_mask_to_apicid_and,
  79
  80         .send_IPI_mask                  = summit_send_IPI_mask,
  81         .send_IPI_mask_allbutself       = NULL,
  82         .send_IPI_allbutself            = summit_send_IPI_allbutself,
  83         .send_IPI_all                   = summit_send_IPI_all,
  84         .send_IPI_self                  = NULL,
  85
  86         .wakeup_cpu                     = NULL,
  87         .trampoline_phys_low            = DEFAULT_TRAMPOLINE_PHYS_LOW,
  88         .trampoline_phys_high           = DEFAULT_TRAMPOLINE_PHYS_HIGH,
  89
  90         .wait_for_init_deassert         = default_wait_for_init_deassert,
  91
  92         .smp_callin_clear_local_apic    = NULL,
  93         .store_NMI_vector               = NULL,
  94         .restore_NMI_vector             = NULL,
  95         .inquire_remote_apic            = inquire_remote_apic,
  96 };