Re: [PATCH 1/7] drm/amdgpu/vcn1: add cancel_delayed_work_sync before power gate

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Am 19.05.21 um 18:22 schrieb James Zhu:
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@xxxxxxx>

Acked-by: Christian König <christian.koenig@xxxxxxx> for the series.

---
  drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | 6 +++++-
  1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
index 0c1beef..27b1ced 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -231,9 +231,13 @@ static int vcn_v1_0_hw_fini(void *handle)
  {
  	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ 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);
+	}
return 0;
  }

_______________________________________________
amd-gfx mailing list
amd-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/amd-gfx




[Index of Archives]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux