ttm_trace_dma_map/ttm_trace_dma_unmap is never used anymore. v2: remove the file completely Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/360432/