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drm/amdgpu: Implement Runtime Bad Page query for VFs

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Host will send a notification when new bad pages are available.

Uopn guest request, the first 256 bad page addresses
will be placed into the PF2VF region.
Guest should pause the PF2VF worker thread while
the copy is in progress.

Reviewed-by: Shravan Kumar Gande <Shravankumar.Gande@amd.com>
Signed-off-by: Victor Skvortsov <victor.skvortsov@amd.com>
Signed-off-by: Ellen Pan <yunru.pan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Ellen Pan
2025-04-29 16:48:09 -04:00
committed by Alex Deucher
parent 6615f1ad34
commit 5da3d8820d
6 changed files with 84 additions and 14 deletions
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13
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
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@@ -1488,3 +1488,16 @@ bool amdgpu_virt_ras_telemetry_block_en(struct amdgpu_device *adev,
return true;
}
/*
* amdgpu_virt_request_bad_pages() - request bad pages
* @adev: amdgpu device.
* Send command to GPU hypervisor to write new bad pages into the shared PF2VF region
*/
void amdgpu_virt_request_bad_pages(struct amdgpu_device *adev)
{
struct amdgpu_virt *virt = &adev->virt;
if (virt->ops && virt->ops->req_bad_pages)
virt->ops->req_bad_pages(adev);
}