drm/i915/ringbuffer: Disable the ringbuffer on cleanup.
It should be idle on cleanup anyway...
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 632a98e..0f16939 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -651,9 +651,17 @@
void intel_cleanup_ring_buffer(struct intel_ring_buffer *ring)
{
+ struct drm_i915_private *dev_priv;
+ int ret;
+
if (ring->gem_object == NULL)
return;
+ /* Disable the ring buffer. The ring must be idle at this point */
+ dev_priv = ring->dev->dev_private;
+ ret = intel_wait_ring_buffer(ring, ring->size - 8);
+ I915_WRITE_CTL(ring, 0);
+
drm_core_ioremapfree(&ring->map, ring->dev);
i915_gem_object_unpin(ring->gem_object);