pwrdwnupctl 117 drivers/gpu/drm/i915/i915_drv.c u32 pwrdwnupctl; pwrdwnupctl 2288 drivers/gpu/drm/i915/i915_drv.c s->pwrdwnupctl = I915_READ(VLV_PWRDWNUPCTL); pwrdwnupctl 2373 drivers/gpu/drm/i915/i915_drv.c I915_WRITE(VLV_PWRDWNUPCTL, s->pwrdwnupctl);