NUM_INTERP       2344 drivers/gpu/drm/radeon/r600.c 	WREG32(SPI_PS_IN_CONTROL_0, NUM_INTERP(2));
NUM_INTERP       1581 drivers/gpu/drm/radeon/rv770.c 	WREG32(SPI_PS_IN_CONTROL_0, NUM_INTERP(2));