diff options
author | James Zhu <James.Zhu@amd.com> | 2020-02-10 20:41:41 +0300 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2020-04-01 21:44:45 +0300 |
commit | bd718638b8513e20a481a67f37a8acc1ebf2d957 (patch) | |
tree | 3fd16c8546827e31e64045fc30e96b9d42a4d0e1 /drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h | |
parent | 17e137f27cb1e868a55ac5c41e1863660a388a9c (diff) | |
download | linux-bd718638b8513e20a481a67f37a8acc1ebf2d957.tar.xz |
drm/amdgpu/vcn: fix race condition issue for vcn start
Fix race condition issue when multiple vcn starts are called.
v2: Removed checking the return value of cancel_delayed_work_sync()
to prevent possible races here.
v3: Add total_submission_cnt to avoid gate power unexpectedly.
v4: Remove extra counter check, and reduce counter before idle
work schedule
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h index 6fe057329de2..111c4cc69998 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h @@ -200,6 +200,8 @@ struct amdgpu_vcn { struct drm_gpu_scheduler *vcn_dec_sched[AMDGPU_MAX_VCN_INSTANCES]; uint32_t num_vcn_enc_sched; uint32_t num_vcn_dec_sched; + struct mutex vcn_pg_lock; + atomic_t total_submission_cnt; unsigned harvest_config; int (*pause_dpg_mode)(struct amdgpu_device *adev, |