X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=kernel%2Ftime%2Ftick-broadcast.c;h=5567745470f7121a284401beec86c1868ed026ae;hb=9f6632d6290785caf9e9f874c0a0cfaf2c178e59;hp=12b3efeb9f6f0e5d8f416db1a224b0b112b0a206;hpb=81450b73dde07f473a4a7208b209b4c8b7251d90;p=powerpc.git

diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index 12b3efeb9f..5567745470 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -284,6 +284,42 @@ void tick_shutdown_broadcast(unsigned int *cpup)
 	spin_unlock_irqrestore(&tick_broadcast_lock, flags);
 }
 
+void tick_suspend_broadcast(void)
+{
+	struct clock_event_device *bc;
+	unsigned long flags;
+
+	spin_lock_irqsave(&tick_broadcast_lock, flags);
+
+	bc = tick_broadcast_device.evtdev;
+	if (bc && tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC)
+		clockevents_set_mode(bc, CLOCK_EVT_MODE_SHUTDOWN);
+
+	spin_unlock_irqrestore(&tick_broadcast_lock, flags);
+}
+
+int tick_resume_broadcast(void)
+{
+	struct clock_event_device *bc;
+	unsigned long flags;
+	int broadcast = 0;
+
+	spin_lock_irqsave(&tick_broadcast_lock, flags);
+
+	bc = tick_broadcast_device.evtdev;
+	if (bc) {
+		if (tick_broadcast_device.mode == TICKDEV_MODE_PERIODIC &&
+		    !cpus_empty(tick_broadcast_mask))
+			tick_broadcast_start_periodic(bc);
+
+		broadcast = cpu_isset(smp_processor_id(), tick_broadcast_mask);
+	}
+	spin_unlock_irqrestore(&tick_broadcast_lock, flags);
+
+	return broadcast;
+}
+
+
 #ifdef CONFIG_TICK_ONESHOT
 
 static cpumask_t tick_broadcast_oneshot_mask;