diff options
| author | Yifan Zha <[email protected]> | 2024-06-27 07:06:23 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2024-07-08 20:46:56 +0000 |
| commit | 33f23fc3155b13c4a96d94a0a22dc26db767440b (patch) | |
| tree | 3c2fc11fa4203897e48153fe3906e5b0b2eeaa36 | |
| parent | drm/amdgpu: add print support for gfx12 ipdump (diff) | |
| download | kernel-33f23fc3155b13c4a96d94a0a22dc26db767440b.tar.gz kernel-33f23fc3155b13c4a96d94a0a22dc26db767440b.zip | |
drm/amdgpu: Set no_hw_access when VF request full GPU fails
[Why]
If VF request full GPU access and the request failed,
the VF driver can get stuck accessing registers for an extended period during
the unload of KMS.
[How]
Set no_hw_access flag when VF request for full GPU access fails
This prevents further hardware access attempts, avoiding the prolonged
stuck state.
Signed-off-by: Yifan Zha <[email protected]>
Acked-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index ccb3d041c2b2..111c380f929b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -86,8 +86,10 @@ int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init) if (virt->ops && virt->ops->req_full_gpu) { r = virt->ops->req_full_gpu(adev, init); - if (r) + if (r) { + adev->no_hw_access = true; return r; + } adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME; } |