1 #ifndef _ASM_X86_SMP_H_
2 #define _ASM_X86_SMP_H_
4 #include <linux/cpumask.h>
5 #include <linux/init.h>
6 #include <asm/percpu.h>
8 extern cpumask_t cpu_callout_map;
10 extern int smp_num_siblings;
11 extern unsigned int num_processors;
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;
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);
25 * Trampoline 80x86 program as an array.
27 extern const unsigned char trampoline_data [];
28 extern const unsigned char trampoline_end [];
29 extern unsigned char *trampoline_base;
31 /* Static state in head.S used to set up a CPU */
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);
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,
51 /* Globals due to paravirt */
52 extern void set_cpu_sibling_map(int cpu);
55 #ifndef CONFIG_PARAVIRT
56 #define startup_ipi_hook(phys_apicid, start_eip, start_esp) do { } while (0)
58 extern struct smp_ops smp_ops;
60 static inline void smp_send_stop(void)
62 smp_ops.smp_send_stop();
65 static inline void smp_prepare_boot_cpu(void)
67 smp_ops.smp_prepare_boot_cpu();
70 static inline void smp_prepare_cpus(unsigned int max_cpus)
72 smp_ops.smp_prepare_cpus(max_cpus);
75 static inline void smp_cpus_done(unsigned int max_cpus)
77 smp_ops.smp_cpus_done(max_cpus);
80 static inline int __cpu_up(unsigned int cpu)
82 return smp_ops.cpu_up(cpu);
85 static inline void smp_send_reschedule(int cpu)
87 smp_ops.smp_send_reschedule(cpu);
90 static inline int smp_call_function_mask(cpumask_t mask,
91 void (*func) (void *info), void *info,
94 return smp_ops.smp_call_function_mask(mask, func, info, wait);
97 void native_smp_prepare_boot_cpu(void);
98 void native_smp_prepare_cpus(unsigned int max_cpus);
99 void native_smp_cpus_done(unsigned int max_cpus);
100 int native_cpu_up(unsigned int cpunum);
102 extern int __cpu_disable(void);
103 extern void __cpu_die(unsigned int cpu);
105 extern unsigned disabled_cpus;
106 extern void prefill_possible_map(void);
108 #define SMP_TRAMPOLINE_BASE 0x6000
109 extern unsigned long setup_trampoline(void);
111 void smp_store_cpu_info(int id);
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);
126 extern void smp_alloc_memory(void);
127 extern void lock_ipi_call_lock(void);
128 extern void unlock_ipi_call_lock(void);
129 #endif /* __ASSEMBLY__ */