1 files changed, 74 insertions, 28 deletions

diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 01ee96a..fa0b03c 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -1681,6 +1681,73 @@ static int rv770_mc_init(struct radeon_device *rdev)
 	return 0;
 }
 
+static void rv770_uvd_init(struct radeon_device *rdev)
+{
+	int r;
+
+	if (!rdev->has_uvd)
+		return;
+
+	r = radeon_uvd_init(rdev);
+	if (r) {
+		dev_err(rdev->dev, "failed UVD (%d) init.\n", r);
+		/*
+		 * At this point rdev->uvd.vcpu_bo is NULL which trickles down
+		 * to early fails uvd_v2_2_resume() and thus nothing happens
+		 * there. So it is pointless to try to go through that code
+		 * hence why we disable uvd here.
+		 */
+		rdev->has_uvd = 0;
+		return;
+	}
+	rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_obj = NULL;
+	r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX], 4096);
+}
+
+static void rv770_uvd_start(struct radeon_device *rdev)
+{
+	int r;
+
+	if (!rdev->has_uvd)
+		return;
+
+	r = uvd_v2_2_resume(rdev);
+	if (r) {
+		dev_err(rdev->dev, "failed UVD resume (%d).\n", r);
+		goto error;
+	}
+	r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_UVD_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing UVD fences (%d).\n", r);
+		goto error;
+	}
+	return;
+
+error:
+	rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size = 0;
+}
+
+static void rv770_uvd_resume(struct radeon_device *rdev)
+{
+	struct radeon_ring *ring;
+	int r;
+
+	if (!rdev->has_uvd || !rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size)
+		return;
+
+	ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
+	r = radeon_ring_init(rdev, ring, ring->ring_size, 0, RADEON_CP_PACKET2);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing UVD ring (%d).\n", r);
+		return;
+	}
+	r = uvd_v1_0_init(rdev);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing UVD (%d).\n", r);
+		return;
+	}
+}
+
 static int rv770_startup(struct radeon_device *rdev)
 {
 	struct radeon_ring *ring;
@@ -1723,16 +1790,7 @@ static int rv770_startup(struct radeon_device *rdev)
 		return r;
 	}
 
-	r = uvd_v2_2_resume(rdev);
-	if (!r) {
-		r = radeon_fence_driver_start_ring(rdev,
-						   R600_RING_TYPE_UVD_INDEX);
-		if (r)
-			dev_err(rdev->dev, "UVD fences init error (%d).\n", r);
-	}
-
-	if (r)
-		rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size = 0;
+	rv770_uvd_start(rdev);
 
 	/* Enable IRQ */
 	if (!rdev->irq.installed) {
@@ -1772,16 +1830,7 @@ static int rv770_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
-	if (ring->ring_size) {
-		r = radeon_ring_init(rdev, ring, ring->ring_size, 0,
-				     RADEON_CP_PACKET2);
-		if (!r)
-			r = uvd_v1_0_init(rdev);
-
-		if (r)
-			DRM_ERROR("radeon: failed initializing UVD (%d).\n", r);
-	}
+	rv770_uvd_resume(rdev);
 
 	r = radeon_ib_pool_init(rdev);
 	if (r) {
@@ -1831,8 +1880,10 @@ int rv770_suspend(struct radeon_device *rdev)
 {
 	radeon_pm_suspend(rdev);
 	radeon_audio_fini(rdev);
-	uvd_v1_0_fini(rdev);
-	radeon_uvd_suspend(rdev);
+	if (rdev->has_uvd) {
+		uvd_v1_0_fini(rdev);
+		radeon_uvd_suspend(rdev);
+	}
 	r700_cp_stop(rdev);
 	r600_dma_stop(rdev);
 	r600_irq_suspend(rdev);
@@ -1917,12 +1968,7 @@ int rv770_init(struct radeon_device *rdev)
 	rdev->ring[R600_RING_TYPE_DMA_INDEX].ring_obj = NULL;
 	r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX], 64 * 1024);
 
-	r = radeon_uvd_init(rdev);
-	if (!r) {
-		rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_obj = NULL;
-		r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_UVD_INDEX],
-			       4096);
-	}
+	rv770_uvd_init(rdev);
 
 	rdev->ih.ring_obj = NULL;
 	r600_ih_ring_init(rdev, 64 * 1024);