drm/amd/amdgpu: lock reservation object while creating shadow bo
authorNicolai Hähnle <nicolai.haehnle@amd.com>
Tue, 10 Jan 2017 18:06:00 +0000 (19:06 +0100)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 27 Jan 2017 16:13:28 +0000 (11:13 -0500)
commit36ea83d1512008ab6631c54971e8de8cf2f0a7b4
tree2a69aafab3903216dbb6036de0bde7a525f23e65
parent54170226a6c9a2122620a3c5c432a76e84026794
drm/amd/amdgpu: lock reservation object while creating shadow bo

ttm_bo_init checks that the reservation object is locked. This is
the caller's responsibility when resv != NULL. Otherwise, the inline
reservation object of the newly allocated buffer is used and must
explicitly be locked.

Uninterruptible w/w locks without an acquire context are always
successful.

v2: use ww_mutex_lock

Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net> (v1)
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c