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mpspec.h
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1 #ifndef _ASM_X86_MPSPEC_H
2 #define _ASM_X86_MPSPEC_H
3 
4 #include <linux/init.h>
5 
6 #include <asm/mpspec_def.h>
7 #include <asm/x86_init.h>
8 #include <asm/apicdef.h>
9 
10 extern int apic_version[];
11 extern int pic_mode;
12 
13 #ifdef CONFIG_X86_32
14 
15 /*
16  * Summit or generic (i.e. installer) kernels need lots of bus entries.
17  * Maximum 256 PCI busses, plus 1 ISA bus in each of 4 cabinets.
18  */
19 #if CONFIG_BASE_SMALL == 0
20 # define MAX_MP_BUSSES 260
21 #else
22 # define MAX_MP_BUSSES 32
23 #endif
24 
25 #define MAX_IRQ_SOURCES 256
26 
27 extern unsigned int def_to_bigsmp;
28 
29 #ifdef CONFIG_X86_NUMAQ
32 extern int quad_local_to_mp_bus_id [NR_CPUS/4][4];
33 #endif
34 
35 #else /* CONFIG_X86_64: */
36 
37 #define MAX_MP_BUSSES 256
38 /* Each PCI slot may be a combo card with its own bus. 4 IRQ pins per slot. */
39 #define MAX_IRQ_SOURCES (MAX_MP_BUSSES * 4)
40 
41 #endif /* CONFIG_X86_64 */
42 
43 #ifdef CONFIG_EISA
44 extern int mp_bus_id_to_type[MAX_MP_BUSSES];
45 #endif
46 
47 extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
48 
49 extern unsigned int boot_cpu_physical_apicid;
50 extern unsigned int max_physical_apicid;
51 extern int mpc_default_type;
52 extern unsigned long mp_lapic_addr;
53 
54 #ifdef CONFIG_X86_LOCAL_APIC
55 extern int smp_found_config;
56 #else
57 # define smp_found_config 0
58 #endif
59 
60 static inline void get_smp_config(void)
61 {
62  x86_init.mpparse.get_smp_config(0);
63 }
64 
65 static inline void early_get_smp_config(void)
66 {
67  x86_init.mpparse.get_smp_config(1);
68 }
69 
70 static inline void find_smp_config(void)
71 {
72  x86_init.mpparse.find_smp_config();
73 }
74 
75 #ifdef CONFIG_X86_MPPARSE
76 extern void early_reserve_e820_mpc_new(void);
77 extern int enable_update_mptable;
78 extern int default_mpc_apic_id(struct mpc_cpu *m);
79 extern void default_smp_read_mpc_oem(struct mpc_table *mpc);
80 # ifdef CONFIG_X86_IO_APIC
81 extern void default_mpc_oem_bus_info(struct mpc_bus *m, char *str);
82 # else
83 # define default_mpc_oem_bus_info NULL
84 # endif
85 extern void default_find_smp_config(void);
86 extern void default_get_smp_config(unsigned int early);
87 #else
88 static inline void early_reserve_e820_mpc_new(void) { }
89 #define enable_update_mptable 0
90 #define default_mpc_apic_id NULL
91 #define default_smp_read_mpc_oem NULL
92 #define default_mpc_oem_bus_info NULL
93 #define default_find_smp_config x86_init_noop
94 #define default_get_smp_config x86_init_uint_noop
95 #endif
96 
98 #ifdef CONFIG_ACPI
99 extern void mp_register_ioapic(int id, u32 address, u32 gsi_base);
100 extern void mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger,
101  u32 gsi);
102 extern void mp_config_acpi_legacy_irqs(void);
103 struct device;
104 extern int mp_register_gsi(struct device *dev, u32 gsi, int edge_level,
105  int active_high_low);
106 #endif /* CONFIG_ACPI */
107 
108 #define PHYSID_ARRAY_SIZE BITS_TO_LONGS(MAX_LOCAL_APIC)
109 
110 struct physid_mask {
111  unsigned long mask[PHYSID_ARRAY_SIZE];
112 };
113 
114 typedef struct physid_mask physid_mask_t;
115 
116 #define physid_set(physid, map) set_bit(physid, (map).mask)
117 #define physid_clear(physid, map) clear_bit(physid, (map).mask)
118 #define physid_isset(physid, map) test_bit(physid, (map).mask)
119 #define physid_test_and_set(physid, map) \
120  test_and_set_bit(physid, (map).mask)
121 
122 #define physids_and(dst, src1, src2) \
123  bitmap_and((dst).mask, (src1).mask, (src2).mask, MAX_LOCAL_APIC)
124 
125 #define physids_or(dst, src1, src2) \
126  bitmap_or((dst).mask, (src1).mask, (src2).mask, MAX_LOCAL_APIC)
127 
128 #define physids_clear(map) \
129  bitmap_zero((map).mask, MAX_LOCAL_APIC)
130 
131 #define physids_complement(dst, src) \
132  bitmap_complement((dst).mask, (src).mask, MAX_LOCAL_APIC)
133 
134 #define physids_empty(map) \
135  bitmap_empty((map).mask, MAX_LOCAL_APIC)
136 
137 #define physids_equal(map1, map2) \
138  bitmap_equal((map1).mask, (map2).mask, MAX_LOCAL_APIC)
139 
140 #define physids_weight(map) \
141  bitmap_weight((map).mask, MAX_LOCAL_APIC)
142 
143 #define physids_shift_right(d, s, n) \
144  bitmap_shift_right((d).mask, (s).mask, n, MAX_LOCAL_APIC)
145 
146 #define physids_shift_left(d, s, n) \
147  bitmap_shift_left((d).mask, (s).mask, n, MAX_LOCAL_APIC)
148 
149 static inline unsigned long physids_coerce(physid_mask_t *map)
150 {
151  return map->mask[0];
152 }
153 
154 static inline void physids_promote(unsigned long physids, physid_mask_t *map)
155 {
156  physids_clear(*map);
157  map->mask[0] = physids;
158 }
159 
160 static inline void physid_set_mask_of_physid(int physid, physid_mask_t *map)
161 {
162  physids_clear(*map);
163  physid_set(physid, *map);
164 }
165 
166 #define PHYSID_MASK_ALL { {[0 ... PHYSID_ARRAY_SIZE-1] = ~0UL} }
167 #define PHYSID_MASK_NONE { {[0 ... PHYSID_ARRAY_SIZE-1] = 0UL} }
168 
170 
171 extern int generic_mps_oem_check(struct mpc_table *, char *, char *);
172 
173 extern int default_acpi_madt_oem_check(char *, char *);
174 
175 #endif /* _ASM_X86_MPSPEC_H */