diff options
| author | Evan Quan <evan.quan@amd.com> | 2019-10-31 09:15:29 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-11-07 00:27:48 +0300 |
| commit | 5c5b2ba00667edd6c5c0df9f97ba2b179d013e1d (patch) | |
| tree | 56d4e43b3cbdfc030ccb18703301b155dc90b49b /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | b0adca4d50169d9a05912e208a89cdd615da40d4 (diff) | |
| download | linux-5c5b2ba00667edd6c5c0df9f97ba2b179d013e1d.tar.xz | |
drm/amdgpu: fix possible pstate switch race condition
Added lock protection so that the p-state switch will
be guarded to be sequential. Also update the hive
pstate only all device from the hive are in the same
state.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 0bb08e0e1611..bcc5d40a8d5f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -977,6 +977,9 @@ struct amdgpu_device { uint64_t unique_id; uint64_t df_perfmon_config_assign_mask[AMDGPU_MAX_DF_PERFMONS]; + + /* device pstate */ + int pstate; }; static inline struct amdgpu_device *amdgpu_ttm_adev(struct ttm_bo_device *bdev) |