diff options
Diffstat (limited to 'include/linux/cpuidle.h')
| -rw-r--r-- | include/linux/cpuidle.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 89dcd30ac8ea..279b1eaa8b73 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -58,6 +58,7 @@ struct cpuidle_state { /* Idle State Flags */ #define CPUIDLE_FLAG_TIME_VALID (0x01) /* is residency time measurable? */ +#define CPUIDLE_FLAG_COUPLED (0x02) /* state applies to multiple cpus */ #define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000) @@ -101,6 +102,12 @@ struct cpuidle_device { struct list_head device_list; struct kobject kobj; struct completion kobj_unregister; + +#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED + int safe_state_index; + cpumask_t coupled_cpus; + struct cpuidle_coupled *coupled; +#endif }; DECLARE_PER_CPU(struct cpuidle_device *, cpuidle_devices); @@ -185,6 +192,14 @@ static inline int cpuidle_play_dead(void) {return -ENODEV; } #endif +#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED +void cpuidle_coupled_parallel_barrier(struct cpuidle_device *dev, atomic_t *a); +#else +static inline void cpuidle_coupled_parallel_barrier(struct cpuidle_device *dev, atomic_t *a) +{ +} +#endif + /****************************** * CPUIDLE GOVERNOR INTERFACE * ******************************/ |