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/*
* tick internal variable and functions used by low/high res code
*/
DECLARE_PER_CPU(struct tick_device, tick_cpu_device);
extern spinlock_t tick_device_lock;
extern ktime_t tick_next_period;
extern ktime_t tick_period;
extern void tick_setup_periodic(struct clock_event_device *dev, int broadcast);
extern void tick_handle_periodic(struct clock_event_device *dev);
/*
* Broadcasting support
*/
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
extern int tick_do_broadcast(cpumask_t mask);
extern struct tick_device tick_broadcast_device;
extern spinlock_t tick_broadcast_lock;
extern int tick_device_uses_broadcast(struct clock_event_device *dev, int cpu);
extern int tick_check_broadcast_device(struct clock_event_device *dev);
extern int tick_is_broadcast_device(struct clock_event_device *dev);
extern void tick_broadcast_on_off(unsigned long reason, int *oncpu);
extern void tick_shutdown_broadcast(unsigned int *cpup);
extern void
tick_set_periodic_handler(struct clock_event_device *dev, int broadcast);
#else /* !BROADCAST */
static inline int tick_check_broadcast_device(struct clock_event_device *dev)
{
return 0;
}
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;
}
static inline void tick_do_periodic_broadcast(struct clock_event_device *d) { }
static inline void tick_broadcast_on_off(unsigned long reason, int *oncpu) { }
static inline void tick_shutdown_broadcast(unsigned int *cpup) { }
/*
* Set the periodic handler in non broadcast mode
*/
static inline void tick_set_periodic_handler(struct clock_event_device *dev,
int broadcast)
{
dev->event_handler = tick_handle_periodic;
}
#endif /* !BROADCAST */
/*
* Check, if the device is functional or a dummy for broadcast
*/
static inline int tick_device_is_functional(struct clock_event_device *dev)
{
return !(dev->features & CLOCK_EVT_FEAT_DUMMY);
}
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