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drm/amdgpu: Add IDH_QUERY_ALIVE event for SR-IOV

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SR-IOV host side will send IDH_QUERY_ALIVE to guest VM to check
if this guest VM is still alive (not destroyed). The only thing
guest KMD need to do is to send ACK back to host.

Signed-off-by: Trigger Huang <Trigger.Huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Trigger Huang 2019-04-30 16:23:29 +08:00 committed by Alex Deucher
parent 3680624e32
commit b6818520ed
2 changed files with 4 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
View file

@ -372,6 +372,9 @@ static int xgpu_ai_mailbox_rcv_irq(struct amdgpu_device *adev,
if (amdgpu_sriov_runtime(adev))
schedule_work(&adev->virt.flr_work);
break;
case IDH_QUERY_ALIVE:
xgpu_ai_mailbox_send_ack(adev);
break;
/* READY_TO_ACCESS_GPU is fetched by kernel polling, IRQ can ignore
* it byfar since that polling thread will handle it,
* other msg like flr complete is not handled here.

1
drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h
View file

@ -49,6 +49,7 @@ enum idh_event {
IDH_FLR_NOTIFICATION_CMPL,
IDH_SUCCESS,
IDH_FAIL,
IDH_QUERY_ALIVE,
IDH_EVENT_MAX
};