[PATCH v2 6/6] drm/amdgpu/vcn:Remove bit 31 for scratch2 to indicate the WA is active

Zhu, James James.Zhu at amd.com
Thu Dec 13 18:08:07 UTC 2018


Remove bit 31 for scratch2 to indicate the Hardware bug work around is active.

Signed-off-by: James Zhu <James.Zhu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
index 564ed94..eb6b783 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
@@ -279,7 +279,7 @@ static int amdgpu_vcn_pause_dpg_mode(struct amdgpu_device *adev,
 
 				ring = &adev->vcn.ring_dec;
 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
-						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2));
+						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
@@ -339,7 +339,7 @@ static int amdgpu_vcn_pause_dpg_mode(struct amdgpu_device *adev,
 
 				ring = &adev->vcn.ring_dec;
 				WREG32_SOC15(UVD, 0, mmUVD_RBC_RB_WPTR,
-						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2));
+						   RREG32_SOC15(UVD, 0, mmUVD_SCRATCH2) & 0x7FFFFFFF);
 				SOC15_WAIT_ON_RREG(UVD, 0, mmUVD_POWER_STATUS,
 						   UVD_PGFSM_CONFIG__UVDM_UVDU_PWR_ON,
 						   UVD_POWER_STATUS__UVD_POWER_STATUS_MASK, ret_code);
-- 
2.7.4



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