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Commit | Line | Data |
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4f86d3a8 LB |
1 | /* |
2 | * cpuidle.h - The internal header file | |
3 | */ | |
4 | ||
5 | #ifndef __DRIVER_CPUIDLE_H | |
6 | #define __DRIVER_CPUIDLE_H | |
7 | ||
8a25a2fd | 8 | #include <linux/device.h> |
4f86d3a8 LB |
9 | |
10 | /* For internal use only */ | |
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 */ | |
8a25a2fd KS |
28 | extern int cpuidle_add_interface(struct device *dev); |
29 | extern void cpuidle_remove_interface(struct device *dev); | |
4f86d3a8 LB |
30 | extern int cpuidle_add_state_sysfs(struct cpuidle_device *device); |
31 | extern void cpuidle_remove_state_sysfs(struct cpuidle_device *device); | |
8a25a2fd KS |
32 | extern int cpuidle_add_sysfs(struct device *dev); |
33 | extern void cpuidle_remove_sysfs(struct device *dev); | |
4f86d3a8 | 34 | |
4126c019 CC |
35 | #ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED |
36 | bool cpuidle_state_is_coupled(struct cpuidle_device *dev, | |
37 | struct cpuidle_driver *drv, int state); | |
38 | int cpuidle_enter_state_coupled(struct cpuidle_device *dev, | |
39 | struct cpuidle_driver *drv, int next_state); | |
40 | int cpuidle_coupled_register_device(struct cpuidle_device *dev); | |
41 | void cpuidle_coupled_unregister_device(struct cpuidle_device *dev); | |
42 | #else | |
43 | static inline bool cpuidle_state_is_coupled(struct cpuidle_device *dev, | |
44 | struct cpuidle_driver *drv, int state) | |
45 | { | |
46 | return false; | |
47 | } | |
48 | ||
49 | static inline int cpuidle_enter_state_coupled(struct cpuidle_device *dev, | |
50 | struct cpuidle_driver *drv, int next_state) | |
51 | { | |
52 | return -1; | |
53 | } | |
54 | ||
55 | static inline int cpuidle_coupled_register_device(struct cpuidle_device *dev) | |
56 | { | |
57 | return 0; | |
58 | } | |
59 | ||
60 | static inline void cpuidle_coupled_unregister_device(struct cpuidle_device *dev) | |
61 | { | |
62 | } | |
63 | #endif | |
64 | ||
4f86d3a8 | 65 | #endif /* __DRIVER_CPUIDLE_H */ |