| #ifndef _ASM_X86_SMP_H_ |
| #define _ASM_X86_SMP_H_ |
| #ifndef __ASSEMBLY__ |
| #include <linux/cpumask.h> |
| #include <linux/init.h> |
| #include <asm/percpu.h> |
| |
| extern cpumask_t cpu_callout_map; |
| |
| extern int smp_num_siblings; |
| extern unsigned int num_processors; |
| extern cpumask_t cpu_initialized; |
| |
| extern u16 x86_cpu_to_apicid_init[]; |
| extern u16 x86_bios_cpu_apicid_init[]; |
| extern void *x86_cpu_to_apicid_early_ptr; |
| extern void *x86_bios_cpu_apicid_early_ptr; |
| |
| DECLARE_PER_CPU(cpumask_t, cpu_sibling_map); |
| DECLARE_PER_CPU(cpumask_t, cpu_core_map); |
| DECLARE_PER_CPU(u16, cpu_llc_id); |
| DECLARE_PER_CPU(u16, x86_cpu_to_apicid); |
| DECLARE_PER_CPU(u16, x86_bios_cpu_apicid); |
| |
| /* |
| * Trampoline 80x86 program as an array. |
| */ |
| extern const unsigned char trampoline_data []; |
| extern const unsigned char trampoline_end []; |
| extern unsigned char *trampoline_base; |
| |
| /* Static state in head.S used to set up a CPU */ |
| extern struct { |
| void *sp; |
| unsigned short ss; |
| } stack_start; |
| |
| extern unsigned long init_rsp; |
| extern unsigned long initial_code; |
| |
| struct smp_ops { |
| void (*smp_prepare_boot_cpu)(void); |
| void (*smp_prepare_cpus)(unsigned max_cpus); |
| int (*cpu_up)(unsigned cpu); |
| void (*smp_cpus_done)(unsigned max_cpus); |
| |
| void (*smp_send_stop)(void); |
| void (*smp_send_reschedule)(int cpu); |
| int (*smp_call_function_mask)(cpumask_t mask, |
| void (*func)(void *info), void *info, |
| int wait); |
| }; |
| |
| /* Globals due to paravirt */ |
| extern void set_cpu_sibling_map(int cpu); |
| |
| #ifdef CONFIG_SMP |
| #ifndef CONFIG_PARAVIRT |
| #define startup_ipi_hook(phys_apicid, start_eip, start_esp) do { } while (0) |
| #endif |
| extern struct smp_ops smp_ops; |
| |
| static inline void smp_send_stop(void) |
| { |
| smp_ops.smp_send_stop(); |
| } |
| |
| static inline void smp_prepare_boot_cpu(void) |
| { |
| smp_ops.smp_prepare_boot_cpu(); |
| } |
| |
| static inline void smp_prepare_cpus(unsigned int max_cpus) |
| { |
| smp_ops.smp_prepare_cpus(max_cpus); |
| } |
| |
| static inline void smp_cpus_done(unsigned int max_cpus) |
| { |
| smp_ops.smp_cpus_done(max_cpus); |
| } |
| |
| static inline int __cpu_up(unsigned int cpu) |
| { |
| return smp_ops.cpu_up(cpu); |
| } |
| |
| static inline void smp_send_reschedule(int cpu) |
| { |
| smp_ops.smp_send_reschedule(cpu); |
| } |
| |
| static inline int smp_call_function_mask(cpumask_t mask, |
| void (*func) (void *info), void *info, |
| int wait) |
| { |
| return smp_ops.smp_call_function_mask(mask, func, info, wait); |
| } |
| |
| void native_smp_prepare_boot_cpu(void); |
| void native_smp_prepare_cpus(unsigned int max_cpus); |
| void native_smp_cpus_done(unsigned int max_cpus); |
| int native_cpu_up(unsigned int cpunum); |
| |
| extern int __cpu_disable(void); |
| extern void __cpu_die(unsigned int cpu); |
| |
| extern unsigned disabled_cpus; |
| extern void prefill_possible_map(void); |
| |
| #define SMP_TRAMPOLINE_BASE 0x6000 |
| extern unsigned long setup_trampoline(void); |
| |
| void smp_store_cpu_info(int id); |
| #define cpu_physical_id(cpu) per_cpu(x86_cpu_to_apicid, cpu) |
| #else |
| #define cpu_physical_id(cpu) boot_cpu_physical_apicid |
| #endif |
| |
| #ifdef CONFIG_X86_32 |
| # include "smp_32.h" |
| #else |
| # include "smp_64.h" |
| #endif |
| |
| #ifdef CONFIG_X86_LOCAL_APIC |
| |
| static inline int logical_smp_processor_id(void) |
| { |
| /* we don't want to mark this access volatile - bad code generation */ |
| return GET_APIC_LOGICAL_ID(*(u32 *)(APIC_BASE + APIC_LDR)); |
| } |
| |
| # ifdef APIC_DEFINITION |
| extern int hard_smp_processor_id(void); |
| # else |
| # include <mach_apicdef.h> |
| static inline int hard_smp_processor_id(void) |
| { |
| /* we don't want to mark this access volatile - bad code generation */ |
| return GET_APIC_ID(*(u32 *)(APIC_BASE + APIC_ID)); |
| } |
| # endif /* APIC_DEFINITION */ |
| |
| #else /* CONFIG_X86_LOCAL_APIC */ |
| |
| # ifndef CONFIG_SMP |
| # define hard_smp_processor_id() 0 |
| # endif |
| |
| #endif /* CONFIG_X86_LOCAL_APIC */ |
| |
| #ifdef CONFIG_HOTPLUG_CPU |
| extern void cpu_exit_clear(void); |
| extern void cpu_uninit(void); |
| extern void remove_siblinginfo(int cpu); |
| #endif |
| |
| extern void smp_alloc_memory(void); |
| extern void lock_ipi_call_lock(void); |
| extern void unlock_ipi_call_lock(void); |
| #endif /* __ASSEMBLY__ */ |
| #endif |