gsckgctl 101 drivers/gpu/drm/i915/i915_drv.c u32 gsckgctl; gsckgctl 2272 drivers/gpu/drm/i915/i915_drv.c s->gsckgctl = I915_READ(VLV_GSCKGCTL); gsckgctl 2357 drivers/gpu/drm/i915/i915_drv.c I915_WRITE(VLV_GSCKGCTL, s->gsckgctl);