RING_PP_DIR_DCLV
ENGINE_READ(engine, RING_PP_DIR_DCLV));
ENGINE_WRITE_FW(engine, RING_PP_DIR_DCLV, PP_DIR_DCLV_2G);
*cs++ = i915_mmio_reg_offset(RING_PP_DIR_DCLV(engine->mmio_base));