extra_ier        3305 drivers/gpu/drm/i915/i915_irq.c 	u32 extra_ier = GEN8_PIPE_VBLANK | GEN8_PIPE_FIFO_UNDERRUN;
extra_ier        3318 drivers/gpu/drm/i915/i915_irq.c 				  ~dev_priv->de_irq_mask[pipe] | extra_ier);