diff options
| author | Lang Yu | 2024-03-25 13:24:31 +0800 |
|---|---|---|
| committer | Alex Deucher | 2024-04-09 23:12:20 -0400 |
| commit | 0f1bbcc2bab25d5fb2dfb1ee3e08131437690d3d (patch) | |
| tree | 2419faf7d1f96a88e9111b111c26398309d264b1 /drivers/gpu | |
| parent | 4b18a91faf1752f9bd69a4ed3aed2c8f6e5b0528 (diff) | |
drm/amdgpu/umsch: reinitialize write pointer in hw init
Otherwise the old one will be used during GPU reset.
That's not expected.
Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/umsch_mm_v4_0.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/umsch_mm_v4_0.c b/drivers/gpu/drm/amd/amdgpu/umsch_mm_v4_0.c index 84368cf1e175..bd57896ab85d 100644 --- a/drivers/gpu/drm/amd/amdgpu/umsch_mm_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/umsch_mm_v4_0.c @@ -225,6 +225,8 @@ static int umsch_mm_v4_0_ring_start(struct amdgpu_umsch_mm *umsch) WREG32_SOC15(VCN, 0, regVCN_UMSCH_RB_SIZE, ring->ring_size); + ring->wptr = 0; + data = RREG32_SOC15(VCN, 0, regVCN_RB_ENABLE); data &= ~(VCN_RB_ENABLE__AUDIO_RB_EN_MASK); WREG32_SOC15(VCN, 0, regVCN_RB_ENABLE, data); |