diff options
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/interface.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 672b192f8153..7e253be19ba7 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -17,6 +17,9 @@ #include <linux/log2.h> #include <linux/workqueue.h> +#define CREATE_TRACE_POINTS +#include <trace/events/rtc.h> + static int rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer); static void rtc_timer_remove(struct rtc_device *rtc, struct rtc_timer *timer); @@ -53,6 +56,8 @@ int rtc_read_time(struct rtc_device *rtc, struct rtc_time *tm) err = __rtc_read_time(rtc, tm); mutex_unlock(&rtc->ops_lock); + + trace_rtc_read_time(rtc_tm_to_time64(tm), err); return err; } EXPORT_SYMBOL_GPL(rtc_read_time); @@ -87,6 +92,8 @@ int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm) mutex_unlock(&rtc->ops_lock); /* A timer might have just expired */ schedule_work(&rtc->irqwork); + + trace_rtc_set_time(rtc_tm_to_time64(tm), err); return err; } EXPORT_SYMBOL_GPL(rtc_set_time); @@ -119,6 +126,8 @@ static int rtc_read_alarm_internal(struct rtc_device *rtc, struct rtc_wkalrm *al } mutex_unlock(&rtc->ops_lock); + + trace_rtc_read_alarm(rtc_tm_to_time64(&alarm->time), err); return err; } @@ -316,6 +325,7 @@ int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) } mutex_unlock(&rtc->ops_lock); + trace_rtc_read_alarm(rtc_tm_to_time64(&alarm->time), err); return err; } EXPORT_SYMBOL_GPL(rtc_read_alarm); @@ -352,6 +362,7 @@ static int __rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) else err = rtc->ops->set_alarm(rtc->dev.parent, alarm); + trace_rtc_set_alarm(rtc_tm_to_time64(&alarm->time), err); return err; } @@ -406,6 +417,7 @@ int rtc_initialize_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) rtc->aie_timer.enabled = 1; timerqueue_add(&rtc->timerqueue, &rtc->aie_timer.node); + trace_rtc_timer_enqueue(&rtc->aie_timer); } mutex_unlock(&rtc->ops_lock); return err; @@ -435,6 +447,8 @@ int rtc_alarm_irq_enable(struct rtc_device *rtc, unsigned int enabled) err = rtc->ops->alarm_irq_enable(rtc->dev.parent, enabled); mutex_unlock(&rtc->ops_lock); + + trace_rtc_alarm_irq_enable(enabled, err); return err; } EXPORT_SYMBOL_GPL(rtc_alarm_irq_enable); @@ -709,6 +723,8 @@ retry: rtc->pie_enabled = enabled; } spin_unlock_irqrestore(&rtc->irq_task_lock, flags); + + trace_rtc_irq_set_state(enabled, err); return err; } EXPORT_SYMBOL_GPL(rtc_irq_set_state); @@ -745,6 +761,8 @@ retry: } } spin_unlock_irqrestore(&rtc->irq_task_lock, flags); + + trace_rtc_irq_set_freq(freq, err); return err; } EXPORT_SYMBOL_GPL(rtc_irq_set_freq); @@ -779,6 +797,7 @@ static int rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer) } timerqueue_add(&rtc->timerqueue, &timer->node); + trace_rtc_timer_enqueue(timer); if (!next || ktime_before(timer->node.expires, next->expires)) { struct rtc_wkalrm alarm; int err; @@ -790,6 +809,7 @@ static int rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer) schedule_work(&rtc->irqwork); } else if (err) { timerqueue_del(&rtc->timerqueue, &timer->node); + trace_rtc_timer_dequeue(timer); timer->enabled = 0; return err; } @@ -803,6 +823,7 @@ static void rtc_alarm_disable(struct rtc_device *rtc) return; rtc->ops->alarm_irq_enable(rtc->dev.parent, false); + trace_rtc_alarm_irq_enable(0, 0); } /** @@ -821,6 +842,7 @@ static void rtc_timer_remove(struct rtc_device *rtc, struct rtc_timer *timer) { struct timerqueue_node *next = timerqueue_getnext(&rtc->timerqueue); timerqueue_del(&rtc->timerqueue, &timer->node); + trace_rtc_timer_dequeue(timer); timer->enabled = 0; if (next == &timer->node) { struct rtc_wkalrm alarm; @@ -871,16 +893,19 @@ again: /* expire timer */ timer = container_of(next, struct rtc_timer, node); timerqueue_del(&rtc->timerqueue, &timer->node); + trace_rtc_timer_dequeue(timer); timer->enabled = 0; if (timer->task.func) timer->task.func(timer->task.private_data); + trace_rtc_timer_fired(timer); /* Re-add/fwd periodic timers */ if (ktime_to_ns(timer->period)) { timer->node.expires = ktime_add(timer->node.expires, timer->period); timer->enabled = 1; timerqueue_add(&rtc->timerqueue, &timer->node); + trace_rtc_timer_enqueue(timer); } } @@ -902,6 +927,7 @@ reprogram: timer = container_of(next, struct rtc_timer, node); timerqueue_del(&rtc->timerqueue, &timer->node); + trace_rtc_timer_dequeue(timer); timer->enabled = 0; dev_err(&rtc->dev, "__rtc_set_alarm: err=%d\n", err); goto again; @@ -992,6 +1018,8 @@ int rtc_read_offset(struct rtc_device *rtc, long *offset) mutex_lock(&rtc->ops_lock); ret = rtc->ops->read_offset(rtc->dev.parent, offset); mutex_unlock(&rtc->ops_lock); + + trace_rtc_read_offset(*offset, ret); return ret; } @@ -1025,5 +1053,7 @@ int rtc_set_offset(struct rtc_device *rtc, long offset) mutex_lock(&rtc->ops_lock); ret = rtc->ops->set_offset(rtc->dev.parent, offset); mutex_unlock(&rtc->ops_lock); + + trace_rtc_set_offset(offset, ret); return ret; } |