drm/radeon: add radeon_fence_count_emited function

Split counting of emited fences out of power
management into a seperate function.

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/radeon.h

@@ -226,6 +226,7 @@ int radeon_fence_wait_next(struct radeon_device *rdev, int ring);
 int radeon_fence_wait_last(struct radeon_device *rdev, int ring);
 struct radeon_fence *radeon_fence_ref(struct radeon_fence *fence);
 void radeon_fence_unref(struct radeon_fence **fence);
+int radeon_fence_count_emitted(struct radeon_device *rdev, int ring);
 
 /*
  * Semaphores.

drivers/gpu/drm/radeon/radeon_fence.c

@@ -368,6 +368,27 @@ void radeon_fence_process(struct radeon_device *rdev, int ring)
 	}
 }
 
+int radeon_fence_count_emitted(struct radeon_device *rdev, int ring)
+{
+	unsigned long irq_flags;
+	int not_processed = 0;
+
+	read_lock_irqsave(&rdev->fence_lock, irq_flags);
+	if (!rdev->fence_drv[ring].initialized)
+		return 0;
+
+	if (!list_empty(&rdev->fence_drv[ring].emitted)) {
+		struct list_head *ptr;
+		list_for_each(ptr, &rdev->fence_drv[ring].emitted) {
+			/* count up to 3, that's enought info */
+			if (++not_processed >= 3)
+				break;
+		}
+	}
+	read_unlock_irqrestore(&rdev->fence_lock, irq_flags);
+	return not_processed;
+}
+
 int radeon_fence_driver_init(struct radeon_device *rdev, int num_rings)
 {
 	unsigned long irq_flags;

drivers/gpu/drm/radeon/radeon_pm.c

@@ -802,27 +802,14 @@ static void radeon_dynpm_idle_work_handler(struct work_struct *work)
 	resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);
 	mutex_lock(&rdev->pm.mutex);
 	if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE) {
-		unsigned long irq_flags;
 		int not_processed = 0;
 		int i;
 
-		read_lock_irqsave(&rdev->fence_lock, irq_flags);
 		for (i = 0; i < RADEON_NUM_RINGS; ++i) {
-			if (!rdev->fence_drv[i].initialized)
-				continue;
-
-			if (!list_empty(&rdev->fence_drv[i].emitted)) {
-				struct list_head *ptr;
-				list_for_each(ptr, &rdev->fence_drv[i].emitted) {
-					/* count up to 3, that's enought info */
-					if (++not_processed >= 3)
-						break;
-				}
-			}
+			not_processed += radeon_fence_count_emitted(rdev, i);
 			if (not_processed >= 3)
 				break;
 		}
-		read_unlock_irqrestore(&rdev->fence_lock, irq_flags);
 
 		if (not_processed >= 3) { /* should upclock */
 			if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_DOWNCLOCK) {