1 #ifndef _ASM_X86_SMP_H_
2 #define _ASM_X86_SMP_H_
4 #include <linux/cpumask.h>
5 #include <linux/init.h>
7 extern cpumask_t cpu_callout_map;
9 extern int smp_num_siblings;
10 extern unsigned int num_processors;
13 * Trampoline 80x86 program as an array.
15 extern const unsigned char trampoline_data [];
16 extern const unsigned char trampoline_end [];
17 extern unsigned char *trampoline_base;
20 void (*smp_prepare_boot_cpu)(void);
21 void (*smp_prepare_cpus)(unsigned max_cpus);
22 int (*cpu_up)(unsigned cpu);
23 void (*smp_cpus_done)(unsigned max_cpus);
25 void (*smp_send_stop)(void);
26 void (*smp_send_reschedule)(int cpu);
27 int (*smp_call_function_mask)(cpumask_t mask,
28 void (*func)(void *info), void *info,
32 /* Globals due to paravirt */
33 extern void set_cpu_sibling_map(int cpu);
36 extern struct smp_ops smp_ops;
38 static inline void smp_send_stop(void)
40 smp_ops.smp_send_stop();
43 static inline void smp_prepare_boot_cpu(void)
45 smp_ops.smp_prepare_boot_cpu();
48 static inline void smp_prepare_cpus(unsigned int max_cpus)
50 smp_ops.smp_prepare_cpus(max_cpus);
53 static inline void smp_cpus_done(unsigned int max_cpus)
55 smp_ops.smp_cpus_done(max_cpus);
58 static inline int __cpu_up(unsigned int cpu)
60 return smp_ops.cpu_up(cpu);
63 static inline void smp_send_reschedule(int cpu)
65 smp_ops.smp_send_reschedule(cpu);
68 static inline int smp_call_function_mask(cpumask_t mask,
69 void (*func) (void *info), void *info,
72 return smp_ops.smp_call_function_mask(mask, func, info, wait);
75 void native_smp_prepare_boot_cpu(void);
76 void native_smp_prepare_cpus(unsigned int max_cpus);
77 void native_smp_cpus_done(unsigned int max_cpus);
78 int native_cpu_up(unsigned int cpunum);
80 extern int __cpu_disable(void);
81 extern void __cpu_die(unsigned int cpu);
83 extern unsigned disabled_cpus;
84 extern void prefill_possible_map(void);
86 #define SMP_TRAMPOLINE_BASE 0x6000
87 extern unsigned long setup_trampoline(void);
96 #ifdef CONFIG_HOTPLUG_CPU
97 extern void cpu_exit_clear(void);
98 extern void cpu_uninit(void);
99 extern void remove_siblinginfo(int cpu);
102 extern void smp_alloc_memory(void);
103 extern void lock_ipi_call_lock(void);
104 extern void unlock_ipi_call_lock(void);
105 #endif /* __ASSEMBLY__ */