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Acked-by: Alex Deucher <alexander.deucher@amd.com><br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> amd-gfx <amd-gfx-bounces@lists.freedesktop.org> on behalf of Trigger Huang <Trigger.Huang@amd.com><br>
<b>Sent:</b> Tuesday, April 30, 2019 4:30 AM<br>
<b>To:</b> amd-gfx@lists.freedesktop.org<br>
<b>Cc:</b> Huang, Trigger<br>
<b>Subject:</b> [PATCH] drm/amdgpu: Add IDH_QUERY_ALIVE event for SR-IOV</font>
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<div class="PlainText">[CAUTION: External Email]<br>
<br>
SR-IOV host side will send IDH_QUERY_ALIVE to guest VM to check<br>
if this guest VM is still alive (not destroyed). The only thing<br>
guest KMD need to do is to send ACK back to host.<br>
<br>
Signed-off-by: Trigger Huang <Trigger.Huang@amd.com><br>
---<br>
drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 3 +++<br>
drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h | 1 +<br>
2 files changed, 4 insertions(+)<br>
<br>
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c<br>
index 8dbad49..2471e7c 100644<br>
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c<br>
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c<br>
@@ -372,6 +372,9 @@ static int xgpu_ai_mailbox_rcv_irq(struct amdgpu_device *adev,<br>
if (amdgpu_sriov_runtime(adev))<br>
schedule_work(&adev->virt.flr_work);<br>
break;<br>
+ case IDH_QUERY_ALIVE:<br>
+ xgpu_ai_mailbox_send_ack(adev);<br>
+ break;<br>
/* READY_TO_ACCESS_GPU is fetched by kernel polling, IRQ can ignore<br>
* it byfar since that polling thread will handle it,<br>
* other msg like flr complete is not handled here.<br>
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h<br>
index 39d151b..077e91a 100644<br>
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h<br>
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h<br>
@@ -49,6 +49,7 @@ enum idh_event {<br>
IDH_FLR_NOTIFICATION_CMPL,<br>
IDH_SUCCESS,<br>
IDH_FAIL,<br>
+ IDH_QUERY_ALIVE,<br>
IDH_EVENT_MAX<br>
};<br>
<br>
--<br>
2.7.4<br>
<br>
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