14f86d3a8SLen Brown /* 24f86d3a8SLen Brown * cpuidle.h - The internal header file 34f86d3a8SLen Brown */ 44f86d3a8SLen Brown 54f86d3a8SLen Brown #ifndef __DRIVER_CPUIDLE_H 64f86d3a8SLen Brown #define __DRIVER_CPUIDLE_H 74f86d3a8SLen Brown 84f86d3a8SLen Brown /* For internal use only */ 94f86d3a8SLen Brown extern struct cpuidle_governor *cpuidle_curr_governor; 104f86d3a8SLen Brown extern struct list_head cpuidle_governors; 114f86d3a8SLen Brown extern struct list_head cpuidle_detected_devices; 124f86d3a8SLen Brown extern struct mutex cpuidle_lock; 134f86d3a8SLen Brown extern spinlock_t cpuidle_driver_lock; 1462027aeaSLen Brown extern int cpuidle_disabled(void); 1556cfbf74SColin Cross extern int cpuidle_enter_state(struct cpuidle_device *dev, 1656cfbf74SColin Cross struct cpuidle_driver *drv, int next_state); 174f86d3a8SLen Brown 184f86d3a8SLen Brown /* idle loop */ 194f86d3a8SLen Brown extern void cpuidle_install_idle_handler(void); 204f86d3a8SLen Brown extern void cpuidle_uninstall_idle_handler(void); 214f86d3a8SLen Brown 224f86d3a8SLen Brown /* governors */ 234f86d3a8SLen Brown extern int cpuidle_switch_governor(struct cpuidle_governor *gov); 244f86d3a8SLen Brown 254f86d3a8SLen Brown /* sysfs */ 26*8f3e9953SDaniel Lezcano 27*8f3e9953SDaniel Lezcano struct device; 28*8f3e9953SDaniel Lezcano 298a25a2fdSKay Sievers extern int cpuidle_add_interface(struct device *dev); 308a25a2fdSKay Sievers extern void cpuidle_remove_interface(struct device *dev); 314f86d3a8SLen Brown extern int cpuidle_add_state_sysfs(struct cpuidle_device *device); 324f86d3a8SLen Brown extern void cpuidle_remove_state_sysfs(struct cpuidle_device *device); 331aef40e2SDaniel Lezcano extern int cpuidle_add_sysfs(struct cpuidle_device *dev); 341aef40e2SDaniel Lezcano extern void cpuidle_remove_sysfs(struct cpuidle_device *dev); 354f86d3a8SLen Brown 364126c019SColin Cross #ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED 374126c019SColin Cross bool cpuidle_state_is_coupled(struct cpuidle_device *dev, 384126c019SColin Cross struct cpuidle_driver *drv, int state); 394126c019SColin Cross int cpuidle_enter_state_coupled(struct cpuidle_device *dev, 404126c019SColin Cross struct cpuidle_driver *drv, int next_state); 414126c019SColin Cross int cpuidle_coupled_register_device(struct cpuidle_device *dev); 424126c019SColin Cross void cpuidle_coupled_unregister_device(struct cpuidle_device *dev); 434126c019SColin Cross #else 444126c019SColin Cross static inline bool cpuidle_state_is_coupled(struct cpuidle_device *dev, 454126c019SColin Cross struct cpuidle_driver *drv, int state) 464126c019SColin Cross { 474126c019SColin Cross return false; 484126c019SColin Cross } 494126c019SColin Cross 504126c019SColin Cross static inline int cpuidle_enter_state_coupled(struct cpuidle_device *dev, 514126c019SColin Cross struct cpuidle_driver *drv, int next_state) 524126c019SColin Cross { 534126c019SColin Cross return -1; 544126c019SColin Cross } 554126c019SColin Cross 564126c019SColin Cross static inline int cpuidle_coupled_register_device(struct cpuidle_device *dev) 574126c019SColin Cross { 584126c019SColin Cross return 0; 594126c019SColin Cross } 604126c019SColin Cross 614126c019SColin Cross static inline void cpuidle_coupled_unregister_device(struct cpuidle_device *dev) 624126c019SColin Cross { 634126c019SColin Cross } 644126c019SColin Cross #endif 654126c019SColin Cross 664f86d3a8SLen Brown #endif /* __DRIVER_CPUIDLE_H */ 67