include/asm-x86/smp.h

   1 #ifndef _ASM_X86_SMP_H_
   2 #define _ASM_X86_SMP_H_
   3 #ifndef __ASSEMBLY__
   4 #include <linux/cpumask.h>
   5 #include <linux/init.h>
   6
   7 extern cpumask_t cpu_callout_map;
   8
   9 extern int smp_num_siblings;
  10 extern unsigned int num_processors;
  11
  12 struct smp_ops {
  13         void (*smp_prepare_boot_cpu)(void);
  14         void (*smp_prepare_cpus)(unsigned max_cpus);
  15         int (*cpu_up)(unsigned cpu);
  16         void (*smp_cpus_done)(unsigned max_cpus);
  17
  18         void (*smp_send_stop)(void);
  19         void (*smp_send_reschedule)(int cpu);
  20         int (*smp_call_function_mask)(cpumask_t mask,
  21                                       void (*func)(void *info), void *info,
  22                                       int wait);
  23 };
  24
  25 #ifdef CONFIG_SMP
  26 extern struct smp_ops smp_ops;
  27
  28 static inline void smp_prepare_boot_cpu(void)
  29 {
  30         smp_ops.smp_prepare_boot_cpu();
  31 }
  32
  33 static inline void smp_prepare_cpus(unsigned int max_cpus)
  34 {
  35         smp_ops.smp_prepare_cpus(max_cpus);
  36 }
  37
  38 static inline void smp_cpus_done(unsigned int max_cpus)
  39 {
  40         smp_ops.smp_cpus_done(max_cpus);
  41 }
  42
  43 static inline int __cpu_up(unsigned int cpu)
  44 {
  45         return smp_ops.cpu_up(cpu);
  46 }
  47
  48 static inline void smp_send_reschedule(int cpu)
  49 {
  50         smp_ops.smp_send_reschedule(cpu);
  51 }
  52
  53 static inline int smp_call_function_mask(cpumask_t mask,
  54                                          void (*func) (void *info), void *info,
  55                                          int wait)
  56 {
  57         return smp_ops.smp_call_function_mask(mask, func, info, wait);
  58 }
  59
  60 void native_smp_prepare_boot_cpu(void);
  61 void native_smp_prepare_cpus(unsigned int max_cpus);
  62 void native_smp_cpus_done(unsigned int max_cpus);
  63 int native_cpu_up(unsigned int cpunum);
  64
  65 extern unsigned disabled_cpus;
  66 #endif
  67
  68 #ifdef CONFIG_X86_32
  69 # include "smp_32.h"
  70 #else
  71 # include "smp_64.h"
  72 #endif
  73
  74 extern void smp_alloc_memory(void);
  75 extern void lock_ipi_call_lock(void);
  76 extern void unlock_ipi_call_lock(void);
  77 #endif /* __ASSEMBLY__ */
  78 #endif