From: James Zhu James.Zhu@amd.com
commit b95f045ea35673572ef46d6483ad8bd6d353d63c upstream.
Add cancel_delayed_work_sync before set power gating state to avoid race condition issue when power gating.
Signed-off-by: James Zhu James.Zhu@amd.com Reviewed-by: Leo Liu leo.liu@amd.com Acked-by: Christian König christian.koenig@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c @@ -233,9 +233,13 @@ static int vcn_v1_0_hw_fini(void *handle struct amdgpu_device *adev = (struct amdgpu_device *)handle; struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec;
+ cancel_delayed_work_sync(&adev->vcn.idle_work); + if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) || - RREG32_SOC15(VCN, 0, mmUVD_STATUS)) + (adev->vcn.cur_state != AMD_PG_STATE_GATE && + RREG32_SOC15(VCN, 0, mmUVD_STATUS))) { vcn_v1_0_set_powergating_state(adev, AMD_PG_STATE_GATE); + }
ring->sched.ready = false;