[PATCH 2/5] dbg

[Chris Wilson]

---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index b003bd4aeb9f..d3fb3bdae81b 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -1324,6 +1324,8 @@ void intel_ring_unpin(struct intel_ring *ring)
 	GEM_BUG_ON(!ring->vma);
 	GEM_BUG_ON(!ring->vaddr);
 
+	DRM_DEBUG_DRIVER("ring head=%x, tail=%x, emit=%x\n", ring->head, ring->tail, ring->emit);
+
 	/* Discard any unused bytes beyond that submitted to hw. */
 	GEM_BUG_ON(!list_empty(&ring->request_list));
 	GEM_BUG_ON(ring->head != ring->tail);
-- 
2.11.0