arch/x86/include/asm/mpspec.h

   1 #ifndef _ASM_X86_MPSPEC_H
   2 #define _ASM_X86_MPSPEC_H
   3
   4
   5 #include <asm/mpspec_def.h>
   6 #include <asm/x86_init.h>
   7 #include <asm/apicdef.h>
   8
   9 extern int apic_version[];
  10 extern int pic_mode;
  11
  12 #ifdef CONFIG_X86_32
  13
  14 /*
  15  * Summit or generic (i.e. installer) kernels need lots of bus entries.
  16  * Maximum 256 PCI busses, plus 1 ISA bus in each of 4 cabinets.
  17  */
  18 #if CONFIG_BASE_SMALL == 0
  19 # define MAX_MP_BUSSES          260
  20 #else
  21 # define MAX_MP_BUSSES          32
  22 #endif
  23
  24 #define MAX_IRQ_SOURCES         256
  25
  26 extern unsigned int def_to_bigsmp;
  27
  28 #else /* CONFIG_X86_64: */
  29
  30 #define MAX_MP_BUSSES           256
  31 /* Each PCI slot may be a combo card with its own bus.  4 IRQ pins per slot. */
  32 #define MAX_IRQ_SOURCES         (MAX_MP_BUSSES * 4)
  33
  34 #endif /* CONFIG_X86_64 */
  35
  36 #ifdef CONFIG_EISA
  37 extern int mp_bus_id_to_type[MAX_MP_BUSSES];
  38 #endif
  39
  40 extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
  41
  42 extern unsigned int boot_cpu_physical_apicid;
  43 extern unsigned long mp_lapic_addr;
  44
  45 #ifdef CONFIG_X86_LOCAL_APIC
  46 extern int smp_found_config;
  47 #else
  48 # define smp_found_config 0
  49 #endif
  50
  51 static inline void get_smp_config(void)
  52 {
  53         x86_init.mpparse.get_smp_config(0);
  54 }
  55
  56 static inline void early_get_smp_config(void)
  57 {
  58         x86_init.mpparse.get_smp_config(1);
  59 }
  60
  61 static inline void find_smp_config(void)
  62 {
  63         x86_init.mpparse.find_smp_config();
  64 }
  65
  66 #ifdef CONFIG_X86_MPPARSE
  67 extern void early_reserve_e820_mpc_new(void);
  68 extern int enable_update_mptable;
  69 extern int default_mpc_apic_id(struct mpc_cpu *m);
  70 extern void default_smp_read_mpc_oem(struct mpc_table *mpc);
  71 # ifdef CONFIG_X86_IO_APIC
  72 extern void default_mpc_oem_bus_info(struct mpc_bus *m, char *str);
  73 # else
  74 #  define default_mpc_oem_bus_info NULL
  75 # endif
  76 extern void default_find_smp_config(void);
  77 extern void default_get_smp_config(unsigned int early);
  78 #else
  79 static inline void early_reserve_e820_mpc_new(void) { }
  80 #define enable_update_mptable 0
  81 #define default_mpc_apic_id NULL
  82 #define default_smp_read_mpc_oem NULL
  83 #define default_mpc_oem_bus_info NULL
  84 #define default_find_smp_config x86_init_noop
  85 #define default_get_smp_config x86_init_uint_noop
  86 #endif
  87
  88 int generic_processor_info(int apicid, int version);
  89
  90 #define PHYSID_ARRAY_SIZE       BITS_TO_LONGS(MAX_LOCAL_APIC)
  91
  92 struct physid_mask {
  93         unsigned long mask[PHYSID_ARRAY_SIZE];
  94 };
  95
  96 typedef struct physid_mask physid_mask_t;
  97
  98 #define physid_set(physid, map)                 set_bit(physid, (map).mask)
  99 #define physid_clear(physid, map)               clear_bit(physid, (map).mask)
 100 #define physid_isset(physid, map)               test_bit(physid, (map).mask)
 101 #define physid_test_and_set(physid, map)                        \
 102         test_and_set_bit(physid, (map).mask)
 103
 104 #define physids_and(dst, src1, src2)                                    \
 105         bitmap_and((dst).mask, (src1).mask, (src2).mask, MAX_LOCAL_APIC)
 106
 107 #define physids_or(dst, src1, src2)                                     \
 108         bitmap_or((dst).mask, (src1).mask, (src2).mask, MAX_LOCAL_APIC)
 109
 110 #define physids_clear(map)                                      \
 111         bitmap_zero((map).mask, MAX_LOCAL_APIC)
 112
 113 #define physids_complement(dst, src)                            \
 114         bitmap_complement((dst).mask, (src).mask, MAX_LOCAL_APIC)
 115
 116 #define physids_empty(map)                                      \
 117         bitmap_empty((map).mask, MAX_LOCAL_APIC)
 118
 119 #define physids_equal(map1, map2)                               \
 120         bitmap_equal((map1).mask, (map2).mask, MAX_LOCAL_APIC)
 121
 122 #define physids_weight(map)                                     \
 123         bitmap_weight((map).mask, MAX_LOCAL_APIC)
 124
 125 #define physids_shift_right(d, s, n)                            \
 126         bitmap_shift_right((d).mask, (s).mask, n, MAX_LOCAL_APIC)
 127
 128 #define physids_shift_left(d, s, n)                             \
 129         bitmap_shift_left((d).mask, (s).mask, n, MAX_LOCAL_APIC)
 130
 131 static inline unsigned long physids_coerce(physid_mask_t *map)
 132 {
 133         return map->mask[0];
 134 }
 135
 136 static inline void physids_promote(unsigned long physids, physid_mask_t *map)
 137 {
 138         physids_clear(*map);
 139         map->mask[0] = physids;
 140 }
 141
 142 static inline void physid_set_mask_of_physid(int physid, physid_mask_t *map)
 143 {
 144         physids_clear(*map);
 145         physid_set(physid, *map);
 146 }
 147
 148 #define PHYSID_MASK_ALL         { {[0 ... PHYSID_ARRAY_SIZE-1] = ~0UL} }
 149 #define PHYSID_MASK_NONE        { {[0 ... PHYSID_ARRAY_SIZE-1] = 0UL} }
 150
 151 extern physid_mask_t phys_cpu_present_map;
 152
 153 #endif /* _ASM_X86_MPSPEC_H */