i915_gem_context_unreference(ctx);
 }
 
-static int intel_init_ring_buffer(struct drm_device *dev,
-                                 struct intel_engine_cs *engine)
+static int intel_init_ring_buffer(struct intel_engine_cs *engine)
 {
-       struct drm_i915_private *dev_priv = to_i915(dev);
+       struct drm_i915_private *dev_priv = engine->i915;
        struct intel_ringbuffer *ringbuf;
        int ret;
 
        WARN_ON(engine->buffer);
 
-       engine->i915 = dev_priv;
        INIT_LIST_HEAD(&engine->active_list);
        INIT_LIST_HEAD(&engine->request_list);
        INIT_LIST_HEAD(&engine->execlist_queue);
        INIT_LIST_HEAD(&engine->buffers);
-       i915_gem_batch_pool_init(dev, &engine->batch_pool);
+       i915_gem_batch_pool_init(&dev_priv->drm, &engine->batch_pool);
        memset(engine->semaphore.sync_seqno, 0,
               sizeof(engine->semaphore.sync_seqno));
 
        engine->init_hw = init_render_ring;
        engine->cleanup = render_ring_cleanup;
 
-       ret = intel_init_ring_buffer(&dev_priv->drm, engine);
+       ret = intel_init_ring_buffer(engine);
        if (ret)
                return ret;
 
                        engine->irq_enable_mask = I915_BSD_USER_INTERRUPT;
        }
 
-       return intel_init_ring_buffer(&dev_priv->drm, engine);
+       return intel_init_ring_buffer(engine);
 }
 
 /**
 
        engine->flush = gen6_bsd_ring_flush;
 
-       return intel_init_ring_buffer(&dev_priv->drm, engine);
+       return intel_init_ring_buffer(engine);
 }
 
 int intel_init_blt_ring_buffer(struct intel_engine_cs *engine)
        if (INTEL_GEN(dev_priv) < 8)
                engine->irq_enable_mask = GT_BLT_USER_INTERRUPT;
 
-       return intel_init_ring_buffer(&dev_priv->drm, engine);
+       return intel_init_ring_buffer(engine);
 }
 
 int intel_init_vebox_ring_buffer(struct intel_engine_cs *engine)
                engine->irq_disable = hsw_vebox_irq_disable;
        }
 
-       return intel_init_ring_buffer(&dev_priv->drm, engine);
+       return intel_init_ring_buffer(engine);
 }
 
 int