arch/x86/include/asm/genapic.h

   1 #ifndef _ASM_X86_GENAPIC_H
   2 #define _ASM_X86_GENAPIC_H
   3
   4 #include <linux/cpumask.h>
   5
   6 #include <asm/mpspec.h>
   7 #include <asm/atomic.h>
   8
   9 /*
  10  * Copyright 2004 James Cleverdon, IBM.
  11  * Subject to the GNU Public License, v.2
  12  *
  13  * Generic APIC sub-arch data struct.
  14  *
  15  * Hacked for x86-64 by James Cleverdon from i386 architecture code by
  16  * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and
  17  * James Cleverdon.
  18  */
  19 struct genapic {
  20         char *name;
  21
  22         int (*probe)(void);
  23         int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
  24         int (*apic_id_registered)(void);
  25
  26         u32 int_delivery_mode;
  27         u32 int_dest_mode;
  28
  29         const struct cpumask *(*target_cpus)(void);
  30
  31         int ESR_DISABLE;
  32
  33         int apic_destination_logical;
  34         unsigned long (*check_apicid_used)(physid_mask_t bitmap, int apicid);
  35         unsigned long (*check_apicid_present)(int apicid);
  36
  37         int no_balance_irq;
  38         int no_ioapic_check;
  39
  40         void (*vector_allocation_domain)(int cpu, struct cpumask *retmask);
  41         void (*init_apic_ldr)(void);
  42
  43         physid_mask_t (*ioapic_phys_id_map)(physid_mask_t map);
  44
  45         void (*setup_apic_routing)(void);
  46         int (*multi_timer_check)(int apic, int irq);
  47         int (*apicid_to_node)(int logical_apicid);
  48         int (*cpu_to_logical_apicid)(int cpu);
  49         int (*cpu_present_to_apicid)(int mps_cpu);
  50         physid_mask_t (*apicid_to_cpu_present)(int phys_apicid);
  51         void (*setup_portio_remap)(void);
  52         int (*check_phys_apicid_present)(int boot_cpu_physical_apicid);
  53         void (*enable_apic_mode)(void);
  54 #ifdef CONFIG_X86_32
  55         u32 (*phys_pkg_id)(u32 cpuid_apic, int index_msb);
  56 #else
  57         unsigned int (*phys_pkg_id)(int index_msb);
  58 #endif
  59
  60         /*
  61          * When one of the next two hooks returns 1 the genapic
  62          * is switched to this. Essentially they are additional
  63          * probe functions:
  64          */
  65         int (*mps_oem_check)(struct mpc_table *mpc, char *oem,
  66                              char *productid);
  67
  68         unsigned int (*get_apic_id)(unsigned long x);
  69         unsigned long (*set_apic_id)(unsigned int id);
  70         unsigned long apic_id_mask;
  71
  72         unsigned int (*cpu_mask_to_apicid)(const struct cpumask *cpumask);
  73         unsigned int (*cpu_mask_to_apicid_and)(const struct cpumask *cpumask,
  74                                                const struct cpumask *andmask);
  75
  76 #ifdef CONFIG_SMP
  77         /* ipi */
  78         void (*send_IPI_mask)(const struct cpumask *mask, int vector);
  79         void (*send_IPI_mask_allbutself)(const struct cpumask *mask,
  80                                          int vector);
  81         void (*send_IPI_allbutself)(int vector);
  82         void (*send_IPI_all)(int vector);
  83         void (*send_IPI_self)(int vector);
  84 #endif
  85         /* wakeup_secondary_cpu */
  86         int (*wakeup_cpu)(int apicid, unsigned long start_eip);
  87
  88         int trampoline_phys_low;
  89         int trampoline_phys_high;
  90
  91         void (*wait_for_init_deassert)(atomic_t *deassert);
  92         void (*smp_callin_clear_local_apic)(void);
  93         void (*store_NMI_vector)(unsigned short *high, unsigned short *low);
  94         void (*restore_NMI_vector)(unsigned short *high, unsigned short *low);
  95         void (*inquire_remote_apic)(int apicid);
  96 };
  97
  98 extern struct genapic *genapic;
  99
 100 #ifdef CONFIG_X86_32
 101
 102 #define APICFUNC(x) .x = x,
 103
 104 /* More functions could be probably marked IPIFUNC and save some space
 105    in UP GENERICARCH kernels, but I don't have the nerve right now
 106    to untangle this mess. -AK  */
 107 #ifdef CONFIG_SMP
 108 #define IPIFUNC(x) APICFUNC(x)
 109 #else
 110 #define IPIFUNC(x)
 111 #endif
 112
 113 #define APIC_INIT(aname, aprobe)                        \
 114 {                                                       \
 115         .name = aname,                                  \
 116         .probe = aprobe,                                \
 117         .int_delivery_mode = INT_DELIVERY_MODE,         \
 118         .int_dest_mode = INT_DEST_MODE,                 \
 119         .no_balance_irq = NO_BALANCE_IRQ,               \
 120         .ESR_DISABLE = esr_disable,                     \
 121         .apic_destination_logical = APIC_DEST_LOGICAL,  \
 122         APICFUNC(apic_id_registered)                    \
 123         APICFUNC(target_cpus)                           \
 124         APICFUNC(check_apicid_used)                     \
 125         APICFUNC(check_apicid_present)                  \
 126         APICFUNC(init_apic_ldr)                         \
 127         APICFUNC(ioapic_phys_id_map)                    \
 128         APICFUNC(setup_apic_routing)                    \
 129         APICFUNC(multi_timer_check)                     \
 130         APICFUNC(apicid_to_node)                        \
 131         APICFUNC(cpu_to_logical_apicid)                 \
 132         APICFUNC(cpu_present_to_apicid)                 \
 133         APICFUNC(apicid_to_cpu_present)                 \
 134         APICFUNC(setup_portio_remap)                    \
 135         APICFUNC(check_phys_apicid_present)             \
 136         APICFUNC(mps_oem_check)                         \
 137         APICFUNC(get_apic_id)                           \
 138         .apic_id_mask = APIC_ID_MASK,                   \
 139         APICFUNC(cpu_mask_to_apicid)                    \
 140         APICFUNC(cpu_mask_to_apicid_and)                \
 141         APICFUNC(vector_allocation_domain)              \
 142         APICFUNC(acpi_madt_oem_check)                   \
 143         IPIFUNC(send_IPI_mask)                          \
 144         IPIFUNC(send_IPI_allbutself)                    \
 145         IPIFUNC(send_IPI_all)                           \
 146         APICFUNC(enable_apic_mode)                      \
 147         APICFUNC(phys_pkg_id)                           \
 148         .trampoline_phys_low = TRAMPOLINE_PHYS_LOW,     \
 149         .trampoline_phys_high = TRAMPOLINE_PHYS_HIGH,   \
 150         APICFUNC(wait_for_init_deassert)                \
 151         APICFUNC(smp_callin_clear_local_apic)           \
 152         APICFUNC(store_NMI_vector)                      \
 153         APICFUNC(restore_NMI_vector)                    \
 154         APICFUNC(inquire_remote_apic)                   \
 155 }
 156
 157 extern void es7000_update_genapic_to_cluster(void);
 158
 159 #else /* CONFIG_X86_64: */
 160
 161 extern struct genapic apic_flat;
 162 extern struct genapic apic_physflat;
 163 extern struct genapic apic_x2apic_cluster;
 164 extern struct genapic apic_x2apic_phys;
 165 extern int acpi_madt_oem_check(char *, char *);
 166
 167 extern void apic_send_IPI_self(int vector);
 168
 169 extern struct genapic apic_x2apic_uv_x;
 170 DECLARE_PER_CPU(int, x2apic_extra_bits);
 171
 172 extern void setup_apic_routing(void);
 173
 174 #endif /* CONFIG_X86_64 */
 175
 176 #endif /* _ASM_X86_GENAPIC_64_H */