diff options
| author | Robert Lee <rob.lee@linaro.org> | 2012-03-20 15:22:42 -0500 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2012-03-21 01:59:40 -0400 |
| commit | e1689795a784a7c41ac4cf9032794986b095a133 (patch) | |
| tree | 19619c24579875e344af337c86c6a604425627b5 /include/linux/cpuidle.h | |
| parent | c16fa4f2ad19908a47c63d8fa436a1178438c7e7 (diff) | |
| download | lwn-e1689795a784a7c41ac4cf9032794986b095a133.tar.gz lwn-e1689795a784a7c41ac4cf9032794986b095a133.zip | |
cpuidle: Add common time keeping and irq enabling
Make necessary changes to implement time keeping and irq enabling
in the core cpuidle code. This will allow the removal of these
functionalities from various platform cpuidle implementations whose
timekeeping and irq enabling follows the form in this common code.
Signed-off-by: Robert Lee <rob.lee@linaro.org>
Tested-by: Jean Pihet <j-pihet@ti.com>
Tested-by: Amit Daniel <amit.kachhap@linaro.org>
Tested-by: Robert Lee <rob.lee@linaro.org>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Acked-by: Jean Pihet <j-pihet@ti.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/linux/cpuidle.h')
| -rw-r--r-- | include/linux/cpuidle.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 712abcc205ae..927db28a2a4c 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -15,6 +15,7 @@ #include <linux/list.h> #include <linux/kobject.h> #include <linux/completion.h> +#include <linux/hrtimer.h> #define CPUIDLE_STATE_MAX 8 #define CPUIDLE_NAME_LEN 16 @@ -122,6 +123,8 @@ struct cpuidle_driver { struct module *owner; unsigned int power_specified:1; + /* set to 1 to use the core cpuidle time keeping (for all states). */ + unsigned int en_core_tk_irqen:1; struct cpuidle_state states[CPUIDLE_STATE_MAX]; int state_count; int safe_state_index; @@ -140,7 +143,10 @@ extern void cpuidle_pause_and_lock(void); extern void cpuidle_resume_and_unlock(void); extern int cpuidle_enable_device(struct cpuidle_device *dev); extern void cpuidle_disable_device(struct cpuidle_device *dev); - +extern int cpuidle_wrap_enter(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int index, + int (*enter)(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int index)); #else static inline void disable_cpuidle(void) { } static inline int cpuidle_idle_call(void) { return -ENODEV; } @@ -157,6 +163,11 @@ static inline void cpuidle_resume_and_unlock(void) { } static inline int cpuidle_enable_device(struct cpuidle_device *dev) {return -ENODEV; } static inline void cpuidle_disable_device(struct cpuidle_device *dev) { } +static inline int cpuidle_wrap_enter(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int index, + int (*enter)(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int index)) +{ return -ENODEV; } #endif |