#include <linux/init.h>
#include <linux/list.h>
#include <linux/wait.h>
+#include <linux/percpu.h>
+
struct hrtimer_clock_base;
struct hrtimer_cpu_base;
*/
struct hrtimer {
struct rb_node node;
- ktime_t expires;
+ ktime_t _expires;
+ ktime_t _softexpires;
enum hrtimer_restart (*function)(struct hrtimer *);
struct hrtimer_clock_base *base;
unsigned long state;
* struct hrtimer_cpu_base - the per cpu clock bases
* @lock: lock protecting the base and associated clock bases
* and timers
- * @lock_key: the lock_class_key for use with lockdep
* @clock_base: array of clock bases for this cpu
* @curr_timer: the timer which is executing a callback right now
* @expires_next: absolute time of the next event which was scheduled
*/
struct hrtimer_cpu_base {
spinlock_t lock;
- struct lock_class_key lock_key;
struct hrtimer_clock_base clock_base[HRTIMER_MAX_CLOCK_BASES];
struct list_head cb_pending;
#ifdef CONFIG_HIGH_RES_TIMERS
#endif
};
+static inline void hrtimer_set_expires(struct hrtimer *timer, ktime_t time)
+{
+ timer->_expires = time;
+ timer->_softexpires = time;
+}
+
+static inline void hrtimer_set_expires_range(struct hrtimer *timer, ktime_t time, ktime_t delta)
+{
+ timer->_softexpires = time;
+ timer->_expires = ktime_add_safe(time, delta);
+}
+
+static inline void hrtimer_set_expires_range_ns(struct hrtimer *timer, ktime_t time, unsigned long delta)
+{
+ timer->_softexpires = time;
+ timer->_expires = ktime_add_safe(time, ns_to_ktime(delta));
+}
+
+static inline void hrtimer_set_expires_tv64(struct hrtimer *timer, s64 tv64)
+{
+ timer->_expires.tv64 = tv64;
+ timer->_softexpires.tv64 = tv64;
+}
+
+static inline void hrtimer_add_expires(struct hrtimer *timer, ktime_t time)
+{
+ timer->_expires = ktime_add_safe(timer->_expires, time);
+ timer->_softexpires = ktime_add_safe(timer->_softexpires, time);
+}
+
+static inline void hrtimer_add_expires_ns(struct hrtimer *timer, unsigned long ns)
+{
+ timer->_expires = ktime_add_ns(timer->_expires, ns);
+ timer->_softexpires = ktime_add_ns(timer->_softexpires, ns);
+}
+
+static inline ktime_t hrtimer_get_expires(const struct hrtimer *timer)
+{
+ return timer->_expires;
+}
+
+static inline ktime_t hrtimer_get_softexpires(const struct hrtimer *timer)
+{
+ return timer->_softexpires;
+}
+
+static inline s64 hrtimer_get_expires_tv64(const struct hrtimer *timer)
+{
+ return timer->_expires.tv64;
+}
+static inline s64 hrtimer_get_softexpires_tv64(const struct hrtimer *timer)
+{
+ return timer->_softexpires.tv64;
+}
+
+static inline s64 hrtimer_get_expires_ns(const struct hrtimer *timer)
+{
+ return ktime_to_ns(timer->_expires);
+}
+
+static inline ktime_t hrtimer_expires_remaining(const struct hrtimer *timer)
+{
+ return ktime_sub(timer->_expires, timer->base->get_time());
+}
+
#ifdef CONFIG_HIGH_RES_TIMERS
struct clock_event_device;
return timer->base->cpu_base->hres_active;
}
+extern void hrtimer_peek_ahead_timers(void);
+
/*
* The resolution of the clocks. The resolution value is returned in
* the clock_getres() system call to give application programmers an
* is expired in the next softirq when the clock was advanced.
*/
static inline void clock_was_set(void) { }
+static inline void hrtimer_peek_ahead_timers(void) { }
static inline void hres_timers_resume(void) { }
extern ktime_t ktime_get(void);
extern ktime_t ktime_get_real(void);
+
+DECLARE_PER_CPU(struct tick_device, tick_cpu_device);
+
+
/* Exported timer functions: */
/* Initialize timers: */
extern void hrtimer_init(struct hrtimer *timer, clockid_t which_clock,
enum hrtimer_mode mode);
+#ifdef CONFIG_DEBUG_OBJECTS_TIMERS
+extern void hrtimer_init_on_stack(struct hrtimer *timer, clockid_t which_clock,
+ enum hrtimer_mode mode);
+
+extern void destroy_hrtimer_on_stack(struct hrtimer *timer);
+#else
+static inline void hrtimer_init_on_stack(struct hrtimer *timer,
+ clockid_t which_clock,
+ enum hrtimer_mode mode)
+{
+ hrtimer_init(timer, which_clock, mode);
+}
+static inline void destroy_hrtimer_on_stack(struct hrtimer *timer) { }
+#endif
+
/* Basic timer operations: */
extern int hrtimer_start(struct hrtimer *timer, ktime_t tim,
const enum hrtimer_mode mode);
+extern int hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim,
+ unsigned long range_ns, const enum hrtimer_mode mode);
extern int hrtimer_cancel(struct hrtimer *timer);
extern int hrtimer_try_to_cancel(struct hrtimer *timer);
+static inline int hrtimer_start_expires(struct hrtimer *timer,
+ enum hrtimer_mode mode)
+{
+ unsigned long delta;
+ ktime_t soft, hard;
+ soft = hrtimer_get_softexpires(timer);
+ hard = hrtimer_get_expires(timer);
+ delta = ktime_to_ns(ktime_sub(hard, soft));
+ return hrtimer_start_range_ns(timer, soft, delta, mode);
+}
+
static inline int hrtimer_restart(struct hrtimer *timer)
{
- return hrtimer_start(timer, timer->expires, HRTIMER_MODE_ABS);
+ return hrtimer_start_expires(timer, HRTIMER_MODE_ABS);
}
/* Query timers: */
(HRTIMER_STATE_ENQUEUED | HRTIMER_STATE_PENDING);
}
+/*
+ * Helper function to check, whether the timer is running the callback
+ * function
+ */
+static inline int hrtimer_callback_running(struct hrtimer *timer)
+{
+ return timer->state & HRTIMER_STATE_CALLBACK;
+}
+
/* Forward a hrtimer so it expires after now: */
extern u64
hrtimer_forward(struct hrtimer *timer, ktime_t now, ktime_t interval);
/* Precise sleep: */
extern long hrtimer_nanosleep(struct timespec *rqtp,
- struct timespec *rmtp,
+ struct timespec __user *rmtp,
const enum hrtimer_mode mode,
const clockid_t clockid);
extern long hrtimer_nanosleep_restart(struct restart_block *restart_block);
extern void hrtimer_init_sleeper(struct hrtimer_sleeper *sl,
struct task_struct *tsk);
+extern int schedule_hrtimeout_range(ktime_t *expires, unsigned long delta,
+ const enum hrtimer_mode mode);
+extern int schedule_hrtimeout(ktime_t *expires, const enum hrtimer_mode mode);
+
/* Soft interrupt function to run the hrtimer queues: */
extern void hrtimer_run_queues(void);
extern void hrtimer_run_pending(void);