HS_CTRL_FIFO_EMPTY  977 drivers/gpu/drm/gma500/psb_intel_reg.h #define HS_CTRL_FIFO_EMPTY			(1 << 18)
HS_CTRL_FIFO_EMPTY 10824 drivers/gpu/drm/i915/i915_reg.h #define  HS_CTRL_FIFO_EMPTY				(1 << 18)