drm/virtio: implement virtio_gpu_shutdown

eauger · eauger · commit 2b976cd5a761 · 2025-09-15T14:38:40.000+02:00
JIRA: https://issues.redhat.com/browse/RHEL-90224 Calling drm_dev_unplug() is the drm way to say the device is gone and can not be accessed any more. Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Message-Id: <20250507082821.2710706-1-kraxel@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> (cherry picked from commit 2507789) Signed-off-by: Eric Auger <eric.auger@redhat.com>
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c b/drivers/gpu/drm/virtio/virtgpu_drv.c
@@ -130,10 +130,10 @@ static void virtio_gpu_remove(struct virtio_device *vdev)
 
 static void virtio_gpu_shutdown(struct virtio_device *vdev)
 {
-	/*
-	 * drm does its own synchronization on shutdown.
-	 * Do nothing here, opt out of device reset.
-	 */
+	struct drm_device *dev = vdev->priv;
+
+	/* stop talking to the device */
+	drm_dev_unplug(dev);
 }
 
 static void virtio_gpu_config_changed(struct virtio_device *vdev)

Original file line number	Diff line number	Diff line change
`@@ -130,10 +130,10 @@ static void virtio_gpu_remove(struct virtio_device *vdev)`
`130`	`130`
`131`	`131`	`static void virtio_gpu_shutdown(struct virtio_device *vdev)`
`132`	`132`	`{`
`133`		`- /*`
`134`		`- * drm does its own synchronization on shutdown.`
`135`		`- * Do nothing here, opt out of device reset.`
`136`		`- */`
	`133`	`+ struct drm_device *dev = vdev->priv;`
	`134`	`+`
	`135`	`+ /* stop talking to the device */`
	`136`	`+ drm_dev_unplug(dev);`
`137`	`137`	`}`
`138`	`138`
`139`	`139`	`static void virtio_gpu_config_changed(struct virtio_device *vdev)`