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drm/amdgpu/sriov: Need to initialize the HDP_NONSURFACE_BAStE 

it requires to initialize HDP_NONSURFACE_BASE, so as to avoid
using the value left by a previous VM under sriov scenario.

v2: it should not hurt baremetal, generalize it for both sriov
and baremetal

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Tiecheng Zhou <Tiecheng.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tiecheng Zhou 2019-05-14 10:03:35 +08:00 committed by Alex Deucher
parent c3b6c60741
commit fe2b5323d2
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
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@ -1181,6 +1181,9 @@ static int gmc_v9_0_gart_enable(struct amdgpu_device *adev)
tmp = RREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL);
WREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL, tmp);
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));
/* After HDP is initialized, flush HDP.*/
adev->nbio_funcs->hdp_flush(adev, NULL);