[PATCH 1/6] drm/amdgpu/vcn:Always gate vcn block during hw finishing

Zhu, James James.Zhu at amd.com
Wed Dec 12 20:24:57 UTC 2018


Under Dynamic Power Gate mode, UVD_STATUS needn't be checked.

Signed-off-by: James Zhu <James.Zhu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | 3 ++-
 1 file changed, 2 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 4f83520..7752043 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -214,7 +214,8 @@ static int vcn_v1_0_hw_fini(void *handle)
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 	struct amdgpu_ring *ring = &adev->vcn.ring_dec;
 
-	if (RREG32_SOC15(VCN, 0, mmUVD_STATUS))
+	if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
+		RREG32_SOC15(VCN, 0, mmUVD_STATUS))
 		vcn_v1_0_set_powergating_state(adev, AMD_PG_STATE_GATE);
 
 	ring->sched.ready = false;
-- 
2.7.4



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