Merge tag 'v4.0-rc6' into drm-intel-next

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / i915 / i915_gem.c

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 4ca3dab77fa4658077cce07e543554ee7315e4a1..d07c0b1fb498264ba0f6224db81434e98c7c6ff5 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2660,24 +2660,11 @@ i915_gem_retire_requests_ring(struct intel_engine_cs *ring)
 
        WARN_ON(i915_verify_lists(ring->dev));
 
-       /* Move any buffers on the active list that are no longer referenced
-        * by the ringbuffer to the flushing/inactive lists as appropriate,
-        * before we free the context associated with the requests.
+       /* Retire requests first as we use it above for the early return.
+        * If we retire requests last, we may use a later seqno and so clear
+        * the requests lists without clearing the active list, leading to
+        * confusion.
         */
-       while (!list_empty(&ring->active_list)) {
-               struct drm_i915_gem_object *obj;
-
-               obj = list_first_entry(&ring->active_list,
-                                     struct drm_i915_gem_object,
-                                     ring_list);
-
-               if (!i915_gem_request_completed(obj->last_read_req, true))
-                       break;
-
-               i915_gem_object_move_to_inactive(obj);
-       }
-
-
        while (!list_empty(&ring->request_list)) {
                struct drm_i915_gem_request *request;
 
@@ -2700,6 +2687,23 @@ i915_gem_retire_requests_ring(struct intel_engine_cs *ring)
                i915_gem_free_request(request);
        }
 
+       /* Move any buffers on the active list that are no longer referenced
+        * by the ringbuffer to the flushing/inactive lists as appropriate,
+        * before we free the context associated with the requests.
+        */
+       while (!list_empty(&ring->active_list)) {
+               struct drm_i915_gem_object *obj;
+
+               obj = list_first_entry(&ring->active_list,
+                                     struct drm_i915_gem_object,
+                                     ring_list);
+
+               if (!i915_gem_request_completed(obj->last_read_req, true))
+                       break;
+
+               i915_gem_object_move_to_inactive(obj);
+       }
+
        if (unlikely(ring->trace_irq_req &&
                     i915_gem_request_completed(ring->trace_irq_req, true))) {
                ring->irq_put(ring);