diff options
| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2019-08-30 00:10:34 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-09-13 17:49:38 -0500 |
| commit | cd05c865108e089c4be99c0f939c72437fba2207 (patch) | |
| tree | 2ef6e7d817f94b11093471f69176c5b93173bcda /drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | |
| parent | 811bc15b49fe2dde87b9109b5eeea8ebe6420c79 (diff) | |
drm/amdgpu: Disable page faults while reading user wptrs
These wptrs must be pinned and GPU accessible when this is called
from hqd_load functions. So they should never fault. This resolves
a circular lock dependency issue involving four locks including the
DQM lock and mmap_sem.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oak Zeng <Oak.Zeng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c')
0 files changed, 0 insertions, 0 deletions