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   1 #ifndef _ASM_GENAPIC_H
   2 #define _ASM_GENAPIC_H 1
   3
   4 #include <asm/mpspec.h>
   5
   6 /*
   7  * Generic APIC driver interface.
   8  *
   9  * An straight forward mapping of the APIC related parts of the
  10  * x86 subarchitecture interface to a dynamic object.
  11  *
  12  * This is used by the "generic" x86 subarchitecture.
  13  *
  14  * Copyright 2003 Andi Kleen, SuSE Labs.
  15  */
  16
  17 struct mpc_config_bus;
  18 struct mp_config_table;
  19 struct mpc_config_processor;
  20
  21 struct genapic {
  22         char *name;
  23         int (*probe)(void);
  24
  25         int (*apic_id_registered)(void);
  26         cpumask_t (*target_cpus)(void);
  27         int int_delivery_mode;
  28         int int_dest_mode;
  29         int ESR_DISABLE;
  30         int apic_destination_logical;
  31         unsigned long (*check_apicid_used)(physid_mask_t bitmap, int apicid);
  32         unsigned long (*check_apicid_present)(int apicid);
  33         int no_balance_irq;
  34         int no_ioapic_check;
  35         void (*init_apic_ldr)(void);
  36         physid_mask_t (*ioapic_phys_id_map)(physid_mask_t map);
  37
  38         void (*setup_apic_routing)(void);
  39         int (*multi_timer_check)(int apic, int irq);
  40         int (*apicid_to_node)(int logical_apicid);
  41         int (*cpu_to_logical_apicid)(int cpu);
  42         int (*cpu_present_to_apicid)(int mps_cpu);
  43         physid_mask_t (*apicid_to_cpu_present)(int phys_apicid);
  44         void (*setup_portio_remap)(void);
  45         int (*check_phys_apicid_present)(int boot_cpu_physical_apicid);
  46         void (*enable_apic_mode)(void);
  47         u32 (*phys_pkg_id)(u32 cpuid_apic, int index_msb);
  48
  49         /* mpparse */
  50         /* When one of the next two hooks returns 1 the genapic
  51            is switched to this. Essentially they are additional probe
  52            functions. */
  53         int (*mps_oem_check)(struct mp_config_table *mpc, char *oem,
  54                              char *productid);
  55         int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
  56
  57         unsigned (*get_apic_id)(unsigned long x);
  58         unsigned long apic_id_mask;
  59         unsigned int (*cpu_mask_to_apicid)(cpumask_t cpumask);
  60
  61 #ifdef CONFIG_SMP
  62         /* ipi */
  63         void (*send_IPI_mask)(cpumask_t mask, int vector);
  64         void (*send_IPI_allbutself)(int vector);
  65         void (*send_IPI_all)(int vector);
  66 #endif
  67 };
  68
  69 #define APICFUNC(x) .x = x,
  70
  71 /* More functions could be probably marked IPIFUNC and save some space
  72    in UP GENERICARCH kernels, but I don't have the nerve right now
  73    to untangle this mess. -AK  */
  74 #ifdef CONFIG_SMP
  75 #define IPIFUNC(x) APICFUNC(x)
  76 #else
  77 #define IPIFUNC(x)
  78 #endif
  79
  80 #define APIC_INIT(aname, aprobe)                        \
  81 {                                                       \
  82         .name = aname,                                  \
  83         .probe = aprobe,                                \
  84         .int_delivery_mode = INT_DELIVERY_MODE,         \
  85         .int_dest_mode = INT_DEST_MODE,                 \
  86         .no_balance_irq = NO_BALANCE_IRQ,               \
  87         .ESR_DISABLE = esr_disable,                     \
  88         .apic_destination_logical = APIC_DEST_LOGICAL,  \
  89         APICFUNC(apic_id_registered)                    \
  90         APICFUNC(target_cpus)                           \
  91         APICFUNC(check_apicid_used)                     \
  92         APICFUNC(check_apicid_present)                  \
  93         APICFUNC(init_apic_ldr)                         \
  94         APICFUNC(ioapic_phys_id_map)                    \
  95         APICFUNC(setup_apic_routing)                    \
  96         APICFUNC(multi_timer_check)                     \
  97         APICFUNC(apicid_to_node)                        \
  98         APICFUNC(cpu_to_logical_apicid)                 \
  99         APICFUNC(cpu_present_to_apicid)                 \
 100         APICFUNC(apicid_to_cpu_present)                 \
 101         APICFUNC(setup_portio_remap)                    \
 102         APICFUNC(check_phys_apicid_present)             \
 103         APICFUNC(mps_oem_check)                         \
 104         APICFUNC(get_apic_id)                           \
 105         .apic_id_mask = APIC_ID_MASK,                   \
 106         APICFUNC(cpu_mask_to_apicid)                    \
 107         APICFUNC(acpi_madt_oem_check)                   \
 108         IPIFUNC(send_IPI_mask)                          \
 109         IPIFUNC(send_IPI_allbutself)                    \
 110         IPIFUNC(send_IPI_all)                           \
 111         APICFUNC(enable_apic_mode)                      \
 112         APICFUNC(phys_pkg_id)                           \
 113 }
 114
 115 extern struct genapic *genapic;
 116
 117 enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC};
 118 #define get_uv_system_type()            UV_NONE
 119 #define is_uv_system()                  0
 120 #define uv_wakeup_secondary(a, b)       1
 121 #define uv_system_init()                do {} while (0)
 122
 123
 124 #endif