When vqs_ready is false, vq should be considered invalid and we
should not check vq->num_free. After this change, a fenced command
queued before the vqs are ready will have fence id 0 and will be
considered done.
Signed-off-by: Chia-I Wu <olva...@gmail.com>
---
drivers/gpu/drm/virtio/virtgpu_vq.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c
b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 299470aac281a..0bf82cff8da37 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -333,6 +333,14 @@ static bool virtio_gpu_queue_ctrl_sgs(struct
virtio_gpu_device *vgdev,
again:
spin_lock(&vgdev->ctrlq.qlock);
+ if (!vgdev->vqs_ready) {
+ spin_unlock(&vgdev->ctrlq.qlock);
+
+ if (fence && vbuf->objs)
+ virtio_gpu_array_unlock_resv(vbuf->objs);
+ return notify;
+ }
+
if (vq->num_free < elemcnt) {
spin_unlock(&vgdev->ctrlq.qlock);
wait_event(vgdev->ctrlq.ack_queue, vq->num_free >= elemcnt);
@@ -351,11 +359,6 @@ static bool virtio_gpu_queue_ctrl_sgs(struct
virtio_gpu_device *vgdev,
}
}
- if (!vgdev->vqs_ready) {
- spin_unlock(&vgdev->ctrlq.qlock);
- return notify;
- }
-
ret = virtqueue_add_sgs(vq, sgs, outcnt, incnt, vbuf, GFP_ATOMIC);
WARN_ON(ret);
--
2.25.0.341.g760bfbb309-goog
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