tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
9extern int pic_mode;
10
11#ifdef CONFIG_X86_32
12
13/*
14 * Summit or generic (i.e. installer) kernels need lots of bus entries.
15 * Maximum 256 PCI busses, plus 1 ISA bus in each of 4 cabinets.
16 */
17#if CONFIG_BASE_SMALL == 0
18# define MAX_MP_BUSSES 260
19#else
20# define MAX_MP_BUSSES 32
21#endif
22
23#define MAX_IRQ_SOURCES 256
24
25extern unsigned int def_to_bigsmp;
26
27#else /* CONFIG_X86_64: */
28
29#define MAX_MP_BUSSES 256
30/* Each PCI slot may be a combo card with its own bus. 4 IRQ pins per slot. */
31#define MAX_IRQ_SOURCES (MAX_MP_BUSSES * 4)
32
33#endif /* CONFIG_X86_64 */
34
35#ifdef CONFIG_EISA
36extern int mp_bus_id_to_type[MAX_MP_BUSSES];
37#endif
38
39extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
40
41extern unsigned int boot_cpu_physical_apicid;
42extern u8 boot_cpu_apic_version;
43extern unsigned long mp_lapic_addr;
44
45#ifdef CONFIG_X86_LOCAL_APIC
46extern int smp_found_config;
47#else
48# define smp_found_config 0
49#endif
50
51static inline void get_smp_config(void)
52{
53 x86_init.mpparse.get_smp_config(0);
54}
55
56static inline void early_get_smp_config(void)
57{
58 x86_init.mpparse.get_smp_config(1);
59}
60
61static inline void find_smp_config(void)
62{
63 x86_init.mpparse.find_smp_config();
64}
65
66#ifdef CONFIG_X86_MPPARSE
67extern void early_reserve_e820_mpc_new(void);
68extern int enable_update_mptable;
69extern int default_mpc_apic_id(struct mpc_cpu *m);
70extern void default_smp_read_mpc_oem(struct mpc_table *mpc);
71# ifdef CONFIG_X86_IO_APIC
72extern void default_mpc_oem_bus_info(struct mpc_bus *m, char *str);
73# else
74# define default_mpc_oem_bus_info NULL
75# endif
76extern void default_find_smp_config(void);
77extern void default_get_smp_config(unsigned int early);
78#else
79static 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
88int generic_processor_info(int apicid, int version);
89int __generic_processor_info(int apicid, int version, bool enabled);
90
91#define PHYSID_ARRAY_SIZE BITS_TO_LONGS(MAX_LOCAL_APIC)
92
93struct physid_mask {
94 unsigned long mask[PHYSID_ARRAY_SIZE];
95};
96
97typedef struct physid_mask physid_mask_t;
98
99#define physid_set(physid, map) set_bit(physid, (map).mask)
100#define physid_clear(physid, map) clear_bit(physid, (map).mask)
101#define physid_isset(physid, map) test_bit(physid, (map).mask)
102#define physid_test_and_set(physid, map) \
103 test_and_set_bit(physid, (map).mask)
104
105#define physids_and(dst, src1, src2) \
106 bitmap_and((dst).mask, (src1).mask, (src2).mask, MAX_LOCAL_APIC)
107
108#define physids_or(dst, src1, src2) \
109 bitmap_or((dst).mask, (src1).mask, (src2).mask, MAX_LOCAL_APIC)
110
111#define physids_clear(map) \
112 bitmap_zero((map).mask, MAX_LOCAL_APIC)
113
114#define physids_complement(dst, src) \
115 bitmap_complement((dst).mask, (src).mask, MAX_LOCAL_APIC)
116
117#define physids_empty(map) \
118 bitmap_empty((map).mask, MAX_LOCAL_APIC)
119
120#define physids_equal(map1, map2) \
121 bitmap_equal((map1).mask, (map2).mask, MAX_LOCAL_APIC)
122
123#define physids_weight(map) \
124 bitmap_weight((map).mask, MAX_LOCAL_APIC)
125
126#define physids_shift_right(d, s, n) \
127 bitmap_shift_right((d).mask, (s).mask, n, MAX_LOCAL_APIC)
128
129#define physids_shift_left(d, s, n) \
130 bitmap_shift_left((d).mask, (s).mask, n, MAX_LOCAL_APIC)
131
132static inline unsigned long physids_coerce(physid_mask_t *map)
133{
134 return map->mask[0];
135}
136
137static inline void physids_promote(unsigned long physids, physid_mask_t *map)
138{
139 physids_clear(*map);
140 map->mask[0] = physids;
141}
142
143static inline void physid_set_mask_of_physid(int physid, physid_mask_t *map)
144{
145 physids_clear(*map);
146 physid_set(physid, *map);
147}
148
149#define PHYSID_MASK_ALL { {[0 ... PHYSID_ARRAY_SIZE-1] = ~0UL} }
150#define PHYSID_MASK_NONE { {[0 ... PHYSID_ARRAY_SIZE-1] = 0UL} }
151
152extern physid_mask_t phys_cpu_present_map;
153
154#endif /* _ASM_X86_MPSPEC_H */