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   1 /*
   2  * APIC driver for the IBM NUMAQ 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/numaq/apicdef.h>
  15 #include <linux/smp.h>
  16 #include <asm/numaq/apic.h>
  17 #include <asm/numaq/ipi.h>
  18 #include <asm/numaq/mpparse.h>
  19 #include <asm/numaq/wakecpu.h>
  20 #include <asm/numaq.h>
  21
  22 static int mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
  23 {
  24         numaq_mps_oem_check(mpc, oem, productid);
  25         return found_numaq;
  26 }
  27
  28 static int probe_numaq(void)
  29 {
  30         /* already know from get_memcfg_numaq() */
  31         return found_numaq;
  32 }
  33
  34 static void vector_allocation_domain(int cpu, cpumask_t *retmask)
  35 {
  36         /* Careful. Some cpus do not strictly honor the set of cpus
  37          * specified in the interrupt destination when using lowest
  38          * priority interrupt delivery mode.
  39          *
  40          * In particular there was a hyperthreading cpu observed to
  41          * deliver interrupts to the wrong hyperthread when only one
  42          * hyperthread was specified in the interrupt desitination.
  43          */
  44         *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
  45 }
  46
  47 struct genapic apic_numaq = {
  48
  49         .name                           = "NUMAQ",
  50         .probe                          = probe_numaq,
  51         .acpi_madt_oem_check            = NULL,
  52         .apic_id_registered             = numaq_apic_id_registered,
  53
  54         .irq_delivery_mode              = dest_LowestPrio,
  55         /* physical delivery on LOCAL quad: */
  56         .irq_dest_mode                  = 0,
  57
  58         .target_cpus                    = numaq_target_cpus,
  59         .disable_esr                    = 1,
  60         .apic_destination_logical       = APIC_DEST_LOGICAL,
  61         .check_apicid_used              = check_apicid_used,
  62         .check_apicid_present           = check_apicid_present,
  63
  64         .no_balance_irq                 = NO_BALANCE_IRQ,
  65         .no_ioapic_check                = 0,
  66
  67         .vector_allocation_domain       = vector_allocation_domain,
  68         .init_apic_ldr                  = init_apic_ldr,
  69
  70         .ioapic_phys_id_map             = ioapic_phys_id_map,
  71         .setup_apic_routing             = setup_apic_routing,
  72         .multi_timer_check              = multi_timer_check,
  73         .apicid_to_node                 = apicid_to_node,
  74         .cpu_to_logical_apicid          = cpu_to_logical_apicid,
  75         .cpu_present_to_apicid          = cpu_present_to_apicid,
  76         .apicid_to_cpu_present          = apicid_to_cpu_present,
  77         .setup_portio_remap             = setup_portio_remap,
  78         .check_phys_apicid_present      = check_phys_apicid_present,
  79         .enable_apic_mode               = enable_apic_mode,
  80         .phys_pkg_id                    = phys_pkg_id,
  81         .mps_oem_check                  = mps_oem_check,
  82
  83         .get_apic_id                    = get_apic_id,
  84         .set_apic_id                    = NULL,
  85         .apic_id_mask                   = APIC_ID_MASK,
  86
  87         .cpu_mask_to_apicid             = cpu_mask_to_apicid,
  88         .cpu_mask_to_apicid_and         = cpu_mask_to_apicid_and,
  89
  90         .send_IPI_mask                  = send_IPI_mask,
  91         .send_IPI_mask_allbutself       = NULL,
  92         .send_IPI_allbutself            = send_IPI_allbutself,
  93         .send_IPI_all                   = send_IPI_all,
  94         .send_IPI_self                  = NULL,
  95
  96         .wakeup_cpu                     = NULL,
  97         .trampoline_phys_low            = TRAMPOLINE_PHYS_LOW,
  98         .trampoline_phys_high           = TRAMPOLINE_PHYS_HIGH,
  99         .wait_for_init_deassert         = wait_for_init_deassert,
 100         .smp_callin_clear_local_apic    = smp_callin_clear_local_apic,
 101         .store_NMI_vector               = store_NMI_vector,
 102         .restore_NMI_vector             = restore_NMI_vector,
 103         .inquire_remote_apic            = inquire_remote_apic,
 104 };