void intel_ring_init_seqno(struct intel_engine_cs *engine, u32 seqno)
 {
-       struct drm_device *dev = engine->dev;
-       struct drm_i915_private *dev_priv = dev->dev_private;
+       struct drm_i915_private *dev_priv = to_i915(engine->dev);
 
-       if (INTEL_INFO(dev)->gen == 6 || INTEL_INFO(dev)->gen == 7) {
+       if (INTEL_INFO(dev_priv)->gen == 6 || INTEL_INFO(dev_priv)->gen == 7) {
                I915_WRITE(RING_SYNC_0(engine->mmio_base), 0);
                I915_WRITE(RING_SYNC_1(engine->mmio_base), 0);
-               if (HAS_VEBOX(dev))
+               if (HAS_VEBOX(dev_priv))
                        I915_WRITE(RING_SYNC_2(engine->mmio_base), 0);
        }