drm/ttm: add set_pages_wb for handling page order more than zero

Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Roger He 2017-11-22 15:09:33 +08:00 • committed by Alex Deucher
commit 154683dd39