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Diffstat (limited to 'include/linux/cpuidle.h')
-rw-r--r--include/linux/cpuidle.h13
1 files changed, 11 insertions, 2 deletions
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index ab70f3bc44ad..f551a9299ac9 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -50,6 +50,15 @@ struct cpuidle_state {
int index);
int (*enter_dead) (struct cpuidle_device *dev, int index);
+
+ /*
+ * CPUs execute ->enter_freeze with the local tick or entire timekeeping
+ * suspended, so it must not re-enable interrupts at any point (even
+ * temporarily) or attempt to change states of clock event devices.
+ */
+ void (*enter_freeze) (struct cpuidle_device *dev,
+ struct cpuidle_driver *drv,
+ int index);
};
/* Idle State Flags */
@@ -141,7 +150,7 @@ extern void cpuidle_resume(void);
extern int cpuidle_enable_device(struct cpuidle_device *dev);
extern void cpuidle_disable_device(struct cpuidle_device *dev);
extern int cpuidle_play_dead(void);
-extern void cpuidle_use_deepest_state(bool enable);
+extern void cpuidle_enter_freeze(void);
extern struct cpuidle_driver *cpuidle_get_cpu_driver(struct cpuidle_device *dev);
#else
@@ -174,7 +183,7 @@ 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_play_dead(void) {return -ENODEV; }
-static inline void cpuidle_use_deepest_state(bool enable) {}
+static inline void cpuidle_enter_freeze(void) { }
static inline struct cpuidle_driver *cpuidle_get_cpu_driver(
struct cpuidle_device *dev) {return NULL; }
#endif