Commit | Line | Data |
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c27cfeff GC |
1 | #ifndef _ASM_X86_SMP_H_ |
2 | #define _ASM_X86_SMP_H_ | |
3 | #ifndef __ASSEMBLY__ | |
53ebef49 | 4 | #include <linux/cpumask.h> |
93b016f8 | 5 | #include <linux/init.h> |
7e1efc0c | 6 | #include <asm/percpu.h> |
53ebef49 GC |
7 | |
8 | extern cpumask_t cpu_callout_map; | |
9 | ||
10 | extern int smp_num_siblings; | |
11 | extern unsigned int num_processors; | |
c27cfeff | 12 | |
7e1efc0c GOC |
13 | extern u16 x86_cpu_to_apicid_init[]; |
14 | extern u16 x86_bios_cpu_apicid_init[]; | |
15 | extern void *x86_cpu_to_apicid_early_ptr; | |
16 | extern void *x86_bios_cpu_apicid_early_ptr; | |
17 | ||
18 | DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); | |
19 | DECLARE_PER_CPU(cpumask_t, cpu_core_map); | |
20 | DECLARE_PER_CPU(u16, cpu_llc_id); | |
21 | DECLARE_PER_CPU(u16, x86_cpu_to_apicid); | |
22 | DECLARE_PER_CPU(u16, x86_bios_cpu_apicid); | |
23 | ||
42068829 GC |
24 | /* |
25 | * Trampoline 80x86 program as an array. | |
26 | */ | |
27 | extern const unsigned char trampoline_data []; | |
28 | extern const unsigned char trampoline_end []; | |
91718e8d | 29 | extern unsigned char *trampoline_base; |
42068829 | 30 | |
9d97d0da GOC |
31 | /* Static state in head.S used to set up a CPU */ |
32 | extern struct { | |
33 | void *sp; | |
34 | unsigned short ss; | |
35 | } stack_start; | |
36 | ||
37 | ||
16694024 GC |
38 | struct smp_ops { |
39 | void (*smp_prepare_boot_cpu)(void); | |
40 | void (*smp_prepare_cpus)(unsigned max_cpus); | |
41 | int (*cpu_up)(unsigned cpu); | |
42 | void (*smp_cpus_done)(unsigned max_cpus); | |
43 | ||
44 | void (*smp_send_stop)(void); | |
45 | void (*smp_send_reschedule)(int cpu); | |
46 | int (*smp_call_function_mask)(cpumask_t mask, | |
47 | void (*func)(void *info), void *info, | |
48 | int wait); | |
49 | }; | |
50 | ||
14522076 GC |
51 | /* Globals due to paravirt */ |
52 | extern void set_cpu_sibling_map(int cpu); | |
53 | ||
c76cb368 | 54 | #ifdef CONFIG_SMP |
d0173aea GOC |
55 | #ifndef CONFIG_PARAVIRT |
56 | #define startup_ipi_hook(phys_apicid, start_eip, start_esp) do { } while (0) | |
57 | #endif | |
c76cb368 | 58 | extern struct smp_ops smp_ops; |
8678969e | 59 | |
377d6984 GC |
60 | static inline void smp_send_stop(void) |
61 | { | |
62 | smp_ops.smp_send_stop(); | |
63 | } | |
64 | ||
1e3fac83 GC |
65 | static inline void smp_prepare_boot_cpu(void) |
66 | { | |
67 | smp_ops.smp_prepare_boot_cpu(); | |
68 | } | |
69 | ||
7557da67 GC |
70 | static inline void smp_prepare_cpus(unsigned int max_cpus) |
71 | { | |
72 | smp_ops.smp_prepare_cpus(max_cpus); | |
73 | } | |
74 | ||
c5597649 GC |
75 | static inline void smp_cpus_done(unsigned int max_cpus) |
76 | { | |
77 | smp_ops.smp_cpus_done(max_cpus); | |
78 | } | |
79 | ||
71d19549 GC |
80 | static inline int __cpu_up(unsigned int cpu) |
81 | { | |
82 | return smp_ops.cpu_up(cpu); | |
83 | } | |
84 | ||
8678969e GC |
85 | static inline void smp_send_reschedule(int cpu) |
86 | { | |
87 | smp_ops.smp_send_reschedule(cpu); | |
88 | } | |
64b1a21e GC |
89 | |
90 | static inline int smp_call_function_mask(cpumask_t mask, | |
91 | void (*func) (void *info), void *info, | |
92 | int wait) | |
93 | { | |
94 | return smp_ops.smp_call_function_mask(mask, func, info, wait); | |
95 | } | |
71d19549 | 96 | |
1e3fac83 | 97 | void native_smp_prepare_boot_cpu(void); |
7557da67 | 98 | void native_smp_prepare_cpus(unsigned int max_cpus); |
c5597649 | 99 | void native_smp_cpus_done(unsigned int max_cpus); |
71d19549 | 100 | int native_cpu_up(unsigned int cpunum); |
93b016f8 | 101 | |
69c18c15 GC |
102 | extern int __cpu_disable(void); |
103 | extern void __cpu_die(unsigned int cpu); | |
104 | ||
93b016f8 | 105 | extern unsigned disabled_cpus; |
68a1c3f8 | 106 | extern void prefill_possible_map(void); |
91718e8d GC |
107 | |
108 | #define SMP_TRAMPOLINE_BASE 0x6000 | |
109 | extern unsigned long setup_trampoline(void); | |
1d89a7f0 GOC |
110 | |
111 | void smp_store_cpu_info(int id); | |
c76cb368 | 112 | #endif |
16694024 | 113 | |
96a388de TG |
114 | #ifdef CONFIG_X86_32 |
115 | # include "smp_32.h" | |
116 | #else | |
117 | # include "smp_64.h" | |
118 | #endif | |
c27cfeff | 119 | |
1dbb4726 GC |
120 | #ifdef CONFIG_HOTPLUG_CPU |
121 | extern void cpu_exit_clear(void); | |
122 | extern void cpu_uninit(void); | |
123 | extern void remove_siblinginfo(int cpu); | |
124 | #endif | |
125 | ||
639acb16 GC |
126 | extern void smp_alloc_memory(void); |
127 | extern void lock_ipi_call_lock(void); | |
128 | extern void unlock_ipi_call_lock(void); | |
c27cfeff GC |
129 | #endif /* __ASSEMBLY__ */ |
130 | #endif |