diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/time/tick-internal.h | 79 |
1 files changed, 40 insertions, 39 deletions
diff --git a/kernel/time/tick-internal.h b/kernel/time/tick-internal.h index 5fc2dafabd58..b6ba0a44e740 100644 --- a/kernel/time/tick-internal.h +++ b/kernel/time/tick-internal.h @@ -9,8 +9,8 @@ #ifdef CONFIG_GENERIC_CLOCKEVENTS -#define TICK_DO_TIMER_NONE -1 -#define TICK_DO_TIMER_BOOT -2 +# define TICK_DO_TIMER_NONE -1 +# define TICK_DO_TIMER_BOOT -2 DECLARE_PER_CPU(struct tick_device, tick_cpu_device); extern ktime_t tick_next_period; @@ -47,41 +47,9 @@ extern int clockevents_program_event(struct clock_event_device *dev, extern void clockevents_handle_noop(struct clock_event_device *dev); extern int __clockevents_update_freq(struct clock_event_device *dev, u32 freq); extern ssize_t sysfs_get_uname(const char *buf, char *dst, size_t cnt); -#else -static inline void tick_suspend(void) { } -static inline void tick_resume(void) { } -#endif /* GENERIC_CLOCKEVENTS */ - -/* Oneshot related functions */ -#ifdef CONFIG_TICK_ONESHOT -extern void tick_setup_oneshot(struct clock_event_device *newdev, - void (*handler)(struct clock_event_device *), - ktime_t nextevt); -extern int tick_program_event(ktime_t expires, int force); -extern void tick_oneshot_notify(void); -extern int tick_switch_to_oneshot(void (*handler)(struct clock_event_device *)); -extern void tick_resume_oneshot(void); -static inline bool tick_oneshot_possible(void) { return true; } -extern int tick_oneshot_mode_active(void); -extern void tick_clock_notify(void); -extern int tick_check_oneshot_change(int allow_nohz); -extern int tick_init_highres(void); -#else /* !ONESHOT */ -static inline -void tick_setup_oneshot(struct clock_event_device *newdev, - void (*handler)(struct clock_event_device *), - ktime_t nextevt) { BUG(); } -static inline void tick_resume_oneshot(void) { BUG(); } -static inline int tick_program_event(ktime_t expires, int force) { return 0; } -static inline void tick_oneshot_notify(void) { } -static inline bool tick_oneshot_possible(void) { return false; } -static inline int tick_oneshot_mode_active(void) { return 0; } -static inline void tick_clock_notify(void) { } -static inline int tick_check_oneshot_change(int allow_nohz) { return 0; } -#endif /* !TICK_ONESHOT */ /* Broadcasting support */ -#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST +# ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST extern int tick_device_uses_broadcast(struct clock_event_device *dev, int cpu); extern void tick_install_broadcast_device(struct clock_event_device *dev); extern int tick_is_broadcast_device(struct clock_event_device *dev); @@ -95,7 +63,7 @@ extern void tick_set_periodic_handler(struct clock_event_device *dev, int broadc extern int tick_broadcast_update_freq(struct clock_event_device *dev, u32 freq); extern struct tick_device *tick_get_broadcast_device(void); extern struct cpumask *tick_get_broadcast_mask(void); -#else /* !BROADCAST */ +# else /* !CONFIG_GENERIC_CLOCKEVENTS_BROADCAST: */ static inline void tick_install_broadcast_device(struct clock_event_device *dev) { } static inline int tick_is_broadcast_device(struct clock_event_device *dev) { return 0; } static inline int tick_device_uses_broadcast(struct clock_event_device *dev, int cpu) { return 0; } @@ -113,7 +81,40 @@ static inline void tick_set_periodic_handler(struct clock_event_device *dev, int { dev->event_handler = tick_handle_periodic; } -#endif /* !BROADCAST */ +# endif /* !CONFIG_GENERIC_CLOCKEVENTS_BROADCAST */ + +#else /* !GENERIC_CLOCKEVENTS: */ +static inline void tick_suspend(void) { } +static inline void tick_resume(void) { } +#endif /* !GENERIC_CLOCKEVENTS */ + +/* Oneshot related functions */ +#ifdef CONFIG_TICK_ONESHOT +extern void tick_setup_oneshot(struct clock_event_device *newdev, + void (*handler)(struct clock_event_device *), + ktime_t nextevt); +extern int tick_program_event(ktime_t expires, int force); +extern void tick_oneshot_notify(void); +extern int tick_switch_to_oneshot(void (*handler)(struct clock_event_device *)); +extern void tick_resume_oneshot(void); +static inline bool tick_oneshot_possible(void) { return true; } +extern int tick_oneshot_mode_active(void); +extern void tick_clock_notify(void); +extern int tick_check_oneshot_change(int allow_nohz); +extern int tick_init_highres(void); +#else /* !CONFIG_TICK_ONESHOT: */ +static inline +void tick_setup_oneshot(struct clock_event_device *newdev, + void (*handler)(struct clock_event_device *), + ktime_t nextevt) { BUG(); } +static inline void tick_resume_oneshot(void) { BUG(); } +static inline int tick_program_event(ktime_t expires, int force) { return 0; } +static inline void tick_oneshot_notify(void) { } +static inline bool tick_oneshot_possible(void) { return false; } +static inline int tick_oneshot_mode_active(void) { return 0; } +static inline void tick_clock_notify(void) { } +static inline int tick_check_oneshot_change(int allow_nohz) { return 0; } +#endif /* !CONFIG_TICK_ONESHOT */ /* Functions related to oneshot broadcasting */ #if defined(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) && defined(CONFIG_TICK_ONESHOT) @@ -125,7 +126,7 @@ extern int tick_broadcast_oneshot_active(void); extern void tick_check_oneshot_broadcast_this_cpu(void); bool tick_broadcast_oneshot_available(void); extern struct cpumask *tick_get_broadcast_oneshot_mask(void); -#else /* BROADCAST && ONESHOT */ +#else /* !(BROADCAST && ONESHOT): */ static inline void tick_broadcast_setup_oneshot(struct clock_event_device *bc) { BUG(); } static inline int tick_broadcast_oneshot_control(unsigned long reason) { return 0; } static inline void tick_broadcast_switch_to_oneshot(void) { } @@ -133,7 +134,7 @@ static inline void tick_shutdown_broadcast_oneshot(unsigned int *cpup) { } static inline int tick_broadcast_oneshot_active(void) { return 0; } static inline void tick_check_oneshot_broadcast_this_cpu(void) { } static inline bool tick_broadcast_oneshot_available(void) { return tick_oneshot_possible(); } -#endif /* !BROADCAST && ONESHOT */ +#endif /* !(BROADCAST && ONESHOT) */ /* NO_HZ_FULL internal */ #ifdef CONFIG_NO_HZ_FULL |