projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 4f86d3a8 LB |
2 | /* |
| 3 | * cpuidle.h - The internal header file | |
| 4 | */ | |
| 5 | ||
| 6 | #ifndef __DRIVER_CPUIDLE_H | |
| 7 | #define __DRIVER_CPUIDLE_H | |
| 8 | ||
| 4f86d3a8 LB |
9 | /* For internal use only */ |
| 10 | extern struct cpuidle_governor *cpuidle_curr_governor; | |
| 4f86d3a8 LB |
11 | extern struct list_head cpuidle_governors; |
| 12 | extern struct list_head cpuidle_detected_devices; | |
| 13 | extern struct mutex cpuidle_lock; | |
| 14 | extern spinlock_t cpuidle_driver_lock; | |
| 62027aea | 15 | extern int cpuidle_disabled(void); |
| 56cfbf74 CC |
16 | extern int cpuidle_enter_state(struct cpuidle_device *dev, |
| 17 | struct cpuidle_driver *drv, int next_state); | |
| 4f86d3a8 LB |
18 | |
| 19 | /* idle loop */ | |
| 20 | extern void cpuidle_install_idle_handler(void); | |
| 21 | extern void cpuidle_uninstall_idle_handler(void); | |
| 22 | ||
| 23 | /* governors */ | |
| 24 | extern int cpuidle_switch_governor(struct cpuidle_governor *gov); | |
| 25 | ||
| 26 | /* sysfs */ | |
| 8f3e9953 DL |
27 | |
| 28 | struct device; | |
| 29 | ||
| 8a25a2fd KS |
30 | extern int cpuidle_add_interface(struct device *dev); |
| 31 | extern void cpuidle_remove_interface(struct device *dev); | |
| bf4d1b5d DL |
32 | extern int cpuidle_add_device_sysfs(struct cpuidle_device *device); |
| 33 | extern void cpuidle_remove_device_sysfs(struct cpuidle_device *device); | |
| 1aef40e2 DL |
34 | extern int cpuidle_add_sysfs(struct cpuidle_device *dev); |
| 35 | extern void cpuidle_remove_sysfs(struct cpuidle_device *dev); | |
| 4f86d3a8 | 36 | |
| 4126c019 | 37 | #ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED |
| 4c1ed5a6 | 38 | bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state); |
| abceaa9c | 39 | int cpuidle_coupled_state_verify(struct cpuidle_driver *drv); |
| 4126c019 CC |
40 | int cpuidle_enter_state_coupled(struct cpuidle_device *dev, |
| 41 | struct cpuidle_driver *drv, int next_state); | |
| 42 | int cpuidle_coupled_register_device(struct cpuidle_device *dev); | |
| 43 | void cpuidle_coupled_unregister_device(struct cpuidle_device *dev); | |
| 44 | #else | |
| 4c1ed5a6 XP |
45 | static inline |
| 46 | bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state) | |
| 4126c019 CC |
47 | { |
| 48 | return false; | |
| 49 | } | |
| 50 | ||
| abceaa9c XP |
51 | static inline int cpuidle_coupled_state_verify(struct cpuidle_driver *drv) |
| 52 | { | |
| 53 | return 0; | |
| 54 | } | |
| 55 | ||
| 4126c019 CC |
56 | static inline int cpuidle_enter_state_coupled(struct cpuidle_device *dev, |
| 57 | struct cpuidle_driver *drv, int next_state) | |
| 58 | { | |
| 59 | return -1; | |
| 60 | } | |
| 61 | ||
| 62 | static inline int cpuidle_coupled_register_device(struct cpuidle_device *dev) | |
| 63 | { | |
| 64 | return 0; | |
| 65 | } | |
| 66 | ||
| 67 | static inline void cpuidle_coupled_unregister_device(struct cpuidle_device *dev) | |
| 68 | { | |
| 69 | } | |
| 70 | #endif | |
| 71 | ||
| 4f86d3a8 | 72 | #endif /* __DRIVER_CPUIDLE_H */ |