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| author | Lang Yu <Lang.Yu@amd.com> | 2024-03-25 13:24:31 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-04-09 21:49:19 -0400 |
| commit | 108ab31be9d5c6efdcf522577d6f3da2a9b34056 (patch) | |
| tree | 07da449a467a6b9b6981811b3318e6935962d762 /drivers/gpu/drm/amd/amdgpu | |
| parent | cd409dbc6986bc5f9bfacbbc968886531d47d5ce (diff) | |
| download | linux-stable-108ab31be9d5c6efdcf522577d6f3da2a9b34056.tar.gz linux-stable-108ab31be9d5c6efdcf522577d6f3da2a9b34056.tar.bz2 linux-stable-108ab31be9d5c6efdcf522577d6f3da2a9b34056.zip | |
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -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); |