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| author | Xiaogang Chen <xiaogang.chen@amd.com> | 2022-02-21 16:28:10 -0600 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-02-24 17:24:43 -0500 |
| commit | 45f0ff404cc92cc97569333314b47e1654a0491a (patch) | |
| tree | b558806b98d0c5c7688e786447ef183a0e524188 /drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c | |
| parent | 4f0f1b58fbacc3d4f60e0cf17b01a6273df1d415 (diff) | |
| download | linux-45f0ff404cc92cc97569333314b47e1654a0491a.tar.gz linux-45f0ff404cc92cc97569333314b47e1654a0491a.tar.bz2 linux-45f0ff404cc92cc97569333314b47e1654a0491a.zip | |
drm/amdgpu: config HDP_MISC_CNTL.READ_BUFFER_WATERMARK
To fix applications running across multiple GPU config hang.
Signed-off-by: Xiaogang Chen <xiaogang.chen@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c index d7811e0327cb..02400d97a95c 100644 --- a/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c @@ -146,6 +146,9 @@ static void hdp_v4_0_init_registers(struct amdgpu_device *adev) WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1); + if (adev->ip_versions[HDP_HWIP][0] == IP_VERSION(4, 4, 0)) + WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, READ_BUFFER_WATERMARK, 2); + WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE, (adev->gmc.vram_start >> 8)); WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE_HI, (adev->gmc.vram_start >> 40)); } |