static cpumask_t tick_broadcast_mask;
static DEFINE_SPINLOCK(tick_broadcast_lock);
+#ifdef CONFIG_TICK_ONESHOT
+static void tick_broadcast_clear_oneshot(int cpu);
+#else
+static inline void tick_broadcast_clear_oneshot(int cpu) { }
+#endif
+
/*
* Debugging: see timer_list.c
*/
*/
static void tick_broadcast_start_periodic(struct clock_event_device *bc)
{
- if (bc && bc->mode == CLOCK_EVT_MODE_SHUTDOWN)
+ if (bc)
tick_setup_periodic(bc, 1);
}
cpu_set(cpu, tick_broadcast_mask);
tick_broadcast_start_periodic(tick_broadcast_device.evtdev);
ret = 1;
- }
+ } else {
+ /*
+ * When the new device is not affected by the stop
+ * feature and the cpu is marked in the broadcast mask
+ * then clear the broadcast bit.
+ */
+ if (!(dev->features & CLOCK_EVT_FEAT_C3STOP)) {
+ int cpu = smp_processor_id();
+ cpu_clear(cpu, tick_broadcast_mask);
+ tick_broadcast_clear_oneshot(cpu);
+ }
+ }
spin_unlock_irqrestore(&tick_broadcast_lock, flags);
return ret;
}
spin_lock_irqsave(&tick_broadcast_lock, flags);
bc = tick_broadcast_device.evtdev;
- if (bc && tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC)
+ if (bc)
clockevents_set_mode(bc, CLOCK_EVT_MODE_SHUTDOWN);
spin_unlock_irqrestore(&tick_broadcast_lock, flags);
bc = tick_broadcast_device.evtdev;
if (bc) {
+ clockevents_set_mode(bc, CLOCK_EVT_MODE_RESUME);
+
switch (tick_broadcast_device.mode) {
case TICKDEV_MODE_PERIODIC:
if(!cpus_empty(tick_broadcast_mask))
spin_unlock_irqrestore(&tick_broadcast_lock, flags);
}
+/*
+ * Reset the one shot broadcast for a cpu
+ *
+ * Called with tick_broadcast_lock held
+ */
+static void tick_broadcast_clear_oneshot(int cpu)
+{
+ cpu_clear(cpu, tick_broadcast_oneshot_mask);
+}
+
/**
* tick_broadcast_setup_highres - setup the broadcast device for highres
*/