drm/ttm: use ffs in ttm_mem_type_from_place

A bit pointless to search for the first bit set manually.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2016-09-12 13:16:16 +02:00 • committed by Alex Deucher
commit 5d98d0bcff