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