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drm/amdgpu: Queue KFD reset workitem in VF FED

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The guest recovery sequence is buggy in Fatal Error when both
FLR & KFD reset workitems are queued at the same time. In addition,
FLR guest recovery sequence is out of order when PF/VF communication
breaks due to a GPU fatal error

As a temporary work around, perform a KFD style reset (Initiate reset
request from the guest) inside the pf2vf thread on FED.

Signed-off-by: Victor Skvortsov <victor.skvortsov@amd.com>
Reviewed-by: Zhigang Luo <zhigang.luo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Victor Skvortsov 2024-05-19 10:39:43 -04:00 • committed by Alex Deucher
parent 3a19a8af64
commit 5434bc03f5
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
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@ -602,7 +602,7 @@ static void amdgpu_virt_update_vf2pf_work_item(struct work_struct *work)
amdgpu_sriov_runtime(adev)) {
amdgpu_ras_set_fed(adev, true);
if (amdgpu_reset_domain_schedule(adev->reset_domain,
&adev->virt.flr_work))
&adev->kfd.reset_work))
return;
else
dev_err(adev->dev, "Failed to queue work! at %s", __func__);