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   1 /*
   2  * APIC driver for "bigsmp" XAPIC machines with more than 8 virtual CPUs.
   3  * Drives the local APIC in "clustered mode".
   4  */
   5 #define APIC_DEFINITION 1
   6 #include <linux/threads.h>
   7 #include <linux/cpumask.h>
   8 #include <asm/mpspec.h>
   9 #include <asm/genapic.h>
  10 #include <asm/fixmap.h>
  11 #include <asm/apicdef.h>
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/dmi.h>
  15 #include <asm/bigsmp/apicdef.h>
  16 #include <linux/smp.h>
  17 #include <asm/bigsmp/apic.h>
  18 #include <asm/bigsmp/ipi.h>
  19 #include <asm/mach-default/mach_mpparse.h>
  20 #include <asm/mach-default/mach_wakecpu.h>
  21
  22 static int dmi_bigsmp; /* can be set by dmi scanners */
  23
  24 static int hp_ht_bigsmp(const struct dmi_system_id *d)
  25 {
  26         printk(KERN_NOTICE "%s detected: force use of apic=bigsmp\n", d->ident);
  27         dmi_bigsmp = 1;
  28         return 0;
  29 }
  30
  31
  32 static const struct dmi_system_id bigsmp_dmi_table[] = {
  33         { hp_ht_bigsmp, "HP ProLiant DL760 G2",
  34         { DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
  35         DMI_MATCH(DMI_BIOS_VERSION, "P44-"),}
  36         },
  37
  38         { hp_ht_bigsmp, "HP ProLiant DL740",
  39         { DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
  40         DMI_MATCH(DMI_BIOS_VERSION, "P47-"),}
  41         },
  42          { }
  43 };
  44
  45 static void vector_allocation_domain(int cpu, cpumask_t *retmask)
  46 {
  47         cpus_clear(*retmask);
  48         cpu_set(cpu, *retmask);
  49 }
  50
  51 static int probe_bigsmp(void)
  52 {
  53         if (def_to_bigsmp)
  54                 dmi_bigsmp = 1;
  55         else
  56                 dmi_check_system(bigsmp_dmi_table);
  57         return dmi_bigsmp;
  58 }
  59
  60 struct genapic apic_bigsmp = {
  61
  62         .name                           = "bigsmp",
  63         .probe                          = probe_bigsmp,
  64         .acpi_madt_oem_check            = NULL,
  65         .apic_id_registered             = bigsmp_apic_id_registered,
  66
  67         .irq_delivery_mode              = IRQ_DELIVERY_MODE,
  68         .irq_dest_mode                  = IRQ_DEST_MODE,
  69
  70         .target_cpus                    = target_cpus,
  71         .ESR_DISABLE                    = esr_disable,
  72         .apic_destination_logical       = APIC_DEST_LOGICAL,
  73         .check_apicid_used              = check_apicid_used,
  74         .check_apicid_present           = check_apicid_present,
  75
  76         .no_balance_irq                 = NO_BALANCE_IRQ,
  77         .no_ioapic_check                = 0,
  78
  79         .vector_allocation_domain       = vector_allocation_domain,
  80         .init_apic_ldr                  = init_apic_ldr,
  81
  82         .ioapic_phys_id_map             = ioapic_phys_id_map,
  83         .setup_apic_routing             = setup_apic_routing,
  84         .multi_timer_check              = multi_timer_check,
  85         .apicid_to_node                 = apicid_to_node,
  86         .cpu_to_logical_apicid          = cpu_to_logical_apicid,
  87         .cpu_present_to_apicid          = cpu_present_to_apicid,
  88         .apicid_to_cpu_present          = apicid_to_cpu_present,
  89         .setup_portio_remap             = setup_portio_remap,
  90         .check_phys_apicid_present      = check_phys_apicid_present,
  91         .enable_apic_mode               = enable_apic_mode,
  92         .phys_pkg_id                    = phys_pkg_id,
  93         .mps_oem_check                  = mps_oem_check,
  94
  95         .get_apic_id                    = get_apic_id,
  96         .set_apic_id                    = NULL,
  97         .apic_id_mask                   = APIC_ID_MASK,
  98
  99         .cpu_mask_to_apicid             = cpu_mask_to_apicid,
 100         .cpu_mask_to_apicid_and         = cpu_mask_to_apicid_and,
 101
 102         .send_IPI_mask                  = send_IPI_mask,
 103         .send_IPI_mask_allbutself       = NULL,
 104         .send_IPI_allbutself            = send_IPI_allbutself,
 105         .send_IPI_all                   = send_IPI_all,
 106         .send_IPI_self                  = NULL,
 107
 108         .wakeup_cpu                     = NULL,
 109         .trampoline_phys_low            = TRAMPOLINE_PHYS_LOW,
 110         .trampoline_phys_high           = TRAMPOLINE_PHYS_HIGH,
 111         .wait_for_init_deassert         = wait_for_init_deassert,
 112         .smp_callin_clear_local_apic    = smp_callin_clear_local_apic,
 113         .store_NMI_vector               = store_NMI_vector,
 114         .restore_NMI_vector             = restore_NMI_vector,
 115         .inquire_remote_apic            = inquire_remote_apic,
 116 };