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drm/amd/virt: For SRIOV send GPU reset directly to TDR queue.

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No need to to trigger another work queue inside the work queue.

v3:

Problem:
Extra reset caused by host side FLR notification
following guest side triggered reset.
Fix: Preven qeuing flr_work from mailbox irq if guest
already executing a reset.

Suggested-by: Liu Shaoyun <Shaoyun.Liu@amd.com>
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Liu Shaoyun <Shaoyun.Liu@amd.com>
Link: https://www.spinics.net/lists/amd-gfx/msg74114.html
This commit is contained in:
Andrey Grodzovsky
2021-12-20 17:27:37 -05:00
parent 54f329cc7a
commit 02599bc7f7
3 changed files with 18 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
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@@ -309,7 +309,7 @@ flr_done:
adev->gfx_timeout == MAX_SCHEDULE_TIMEOUT ||
adev->compute_timeout == MAX_SCHEDULE_TIMEOUT ||
adev->video_timeout == MAX_SCHEDULE_TIMEOUT))
amdgpu_device_gpu_recover(adev, NULL);
amdgpu_device_gpu_recover_imp(adev, NULL);
}
static int xgpu_nv_set_mailbox_rcv_irq(struct amdgpu_device *adev,
@@ -337,8 +337,11 @@ static int xgpu_nv_mailbox_rcv_irq(struct amdgpu_device *adev,
switch (event) {
case IDH_FLR_NOTIFICATION:
if (amdgpu_sriov_runtime(adev))
schedule_work(&adev->virt.flr_work);
if (amdgpu_sriov_runtime(adev) && !amdgpu_in_reset(adev))
WARN_ONCE(!queue_work(adev->reset_domain.wq,
&adev->virt.flr_work),
"Failed to queue work! at %s",
__func__);
break;
/* READY_TO_ACCESS_GPU is fetched by kernel polling, IRQ can ignore
* it byfar since that polling thread will handle it,