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 | 9 | /* For internal use only */ |
61cb5758 | 10 | extern char param_governor[]; |
4f86d3a8 | 11 | extern struct cpuidle_governor *cpuidle_curr_governor; |
cb5d8c45 | 12 | extern struct cpuidle_governor *cpuidle_prev_governor; |
4f86d3a8 LB |
13 | extern struct list_head cpuidle_governors; |
14 | extern struct list_head cpuidle_detected_devices; | |
15 | extern struct mutex cpuidle_lock; | |
16 | extern spinlock_t cpuidle_driver_lock; | |
62027aea | 17 | extern int cpuidle_disabled(void); |
56cfbf74 CC |
18 | extern int cpuidle_enter_state(struct cpuidle_device *dev, |
19 | struct cpuidle_driver *drv, int next_state); | |
4f86d3a8 LB |
20 | |
21 | /* idle loop */ | |
22 | extern void cpuidle_install_idle_handler(void); | |
23 | extern void cpuidle_uninstall_idle_handler(void); | |
24 | ||
25 | /* governors */ | |
cb5d8c45 | 26 | extern struct cpuidle_governor *cpuidle_find_governor(const char *str); |
4f86d3a8 LB |
27 | extern int cpuidle_switch_governor(struct cpuidle_governor *gov); |
28 | ||
29 | /* sysfs */ | |
8f3e9953 DL |
30 | |
31 | struct device; | |
32 | ||
8a25a2fd KS |
33 | extern int cpuidle_add_interface(struct device *dev); |
34 | extern void cpuidle_remove_interface(struct device *dev); | |
bf4d1b5d DL |
35 | extern int cpuidle_add_device_sysfs(struct cpuidle_device *device); |
36 | extern void cpuidle_remove_device_sysfs(struct cpuidle_device *device); | |
1aef40e2 DL |
37 | extern int cpuidle_add_sysfs(struct cpuidle_device *dev); |
38 | extern void cpuidle_remove_sysfs(struct cpuidle_device *dev); | |
4f86d3a8 | 39 | |
4126c019 | 40 | #ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED |
4c1ed5a6 | 41 | bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state); |
abceaa9c | 42 | int cpuidle_coupled_state_verify(struct cpuidle_driver *drv); |
4126c019 CC |
43 | int cpuidle_enter_state_coupled(struct cpuidle_device *dev, |
44 | struct cpuidle_driver *drv, int next_state); | |
45 | int cpuidle_coupled_register_device(struct cpuidle_device *dev); | |
46 | void cpuidle_coupled_unregister_device(struct cpuidle_device *dev); | |
47 | #else | |
4c1ed5a6 XP |
48 | static inline |
49 | bool cpuidle_state_is_coupled(struct cpuidle_driver *drv, int state) | |
4126c019 CC |
50 | { |
51 | return false; | |
52 | } | |
53 | ||
abceaa9c XP |
54 | static inline int cpuidle_coupled_state_verify(struct cpuidle_driver *drv) |
55 | { | |
56 | return 0; | |
57 | } | |
58 | ||
4126c019 CC |
59 | static inline int cpuidle_enter_state_coupled(struct cpuidle_device *dev, |
60 | struct cpuidle_driver *drv, int next_state) | |
61 | { | |
62 | return -1; | |
63 | } | |
64 | ||
65 | static inline int cpuidle_coupled_register_device(struct cpuidle_device *dev) | |
66 | { | |
67 | return 0; | |
68 | } | |
69 | ||
70 | static inline void cpuidle_coupled_unregister_device(struct cpuidle_device *dev) | |
71 | { | |
72 | } | |
73 | #endif | |
74 | ||
4f86d3a8 | 75 | #endif /* __DRIVER_CPUIDLE_H */ |