RLC_HB_CNTL      4391 drivers/gpu/drm/radeon/evergreen.c 	WREG32(RLC_HB_CNTL, 0);
RLC_HB_CNTL      3564 drivers/gpu/drm/radeon/r600.c 	WREG32(RLC_HB_CNTL, 0);