diff options
| author | Yifan Zha <Yifan.Zha@amd.com> | 2023-03-06 09:54:05 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-03-16 01:45:26 +0300 |
| commit | 057e335c71361063e173381cecf2e8487ec8b552 (patch) | |
| tree | 048061d6d65b6fa4f9fdfc218a126efd67b1b675 /drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | |
| parent | 5f3401eeb064fab5ce50728cce46532cce7a85c5 (diff) | |
| download | linux-057e335c71361063e173381cecf2e8487ec8b552.tar.xz | |
drm/amdgpu: Init MMVM_CONTEXTS_DISABLE in gmc11 golden setting under SRIOV
[Why]
If disable the mmhub vm contexts(set MMVM_CONTEXTS_DISABLE to 0xffff),
driver loading failed on vf due to fence fallback timer expired on all rings.
FLR cannot reset MMVM_CONTEXTS_DISABLE.
So this vf can not be recovered anymore unless trigger a whole gpu reset.
[How]
Under SRIOV, init MMVM_CONTEXTS_DISABLE in gmc11 golden register setting.
Signed-off-by: Yifan Zha <Yifan.Zha@amd.com>
Reviewed-by: Horace Chen <Horace.Chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c index 1c585cc24857..fad199ed15f3 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c @@ -862,6 +862,12 @@ static int gmc_v11_0_sw_fini(void *handle) static void gmc_v11_0_init_golden_registers(struct amdgpu_device *adev) { + if (amdgpu_sriov_vf(adev)) { + struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB_0]; + + WREG32(hub->vm_contexts_disable, 0); + return; + } } /** |