RADEON_SCRATCH_UMSK 4023 drivers/gpu/drm/radeon/r100.c 	tmp = RREG32(RADEON_SCRATCH_UMSK);
RADEON_SCRATCH_UMSK 4025 drivers/gpu/drm/radeon/r100.c 		WREG32(RADEON_SCRATCH_UMSK, 0);