arch/powerpc/platforms/pseries/offline_states.h

   1 #ifndef _OFFLINE_STATES_H_
   2 #define _OFFLINE_STATES_H_
   3
   4 /* Cpu offline states go here */
   5 enum cpu_state_vals {
   6         CPU_STATE_OFFLINE,
   7         CPU_STATE_INACTIVE,
   8         CPU_STATE_ONLINE,
   9         CPU_MAX_OFFLINE_STATES
  10 };
  11
  12 #ifdef CONFIG_HOTPLUG_CPU
  13 extern enum cpu_state_vals get_cpu_current_state(int cpu);
  14 extern void set_cpu_current_state(int cpu, enum cpu_state_vals state);
  15 extern void set_preferred_offline_state(int cpu, enum cpu_state_vals state);
  16 extern void set_default_offline_state(int cpu);
  17 #else
  18 static inline enum cpu_state_vals get_cpu_current_state(int cpu)
  19 {
  20         return CPU_STATE_ONLINE;
  21 }
  22
  23 static inline void set_cpu_current_state(int cpu, enum cpu_state_vals state)
  24 {
  25 }
  26
  27 static inline void set_preferred_offline_state(int cpu, enum cpu_state_vals state)
  28 {
  29 }
  30
  31 static inline void set_default_offline_state(int cpu)
  32 {
  33 }
  34 #endif
  35
  36 extern enum cpu_state_vals get_preferred_offline_state(int cpu);
  37 extern int start_secondary(void);
  38 extern void start_secondary_resume(void);
  39 #endif