diff options
| author | Gerd Hoffmann <kraxel@redhat.com> | 2020-02-14 15:55:31 +0300 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2020-02-17 16:50:49 +0300 |
| commit | fcdd19b85c7bb800ec23c9dff15092a7004cfd3f (patch) | |
| tree | 70aa67a35d3cc044128c602ddb1a5713073dae5f /drivers/gpu/drm/virtio/virtgpu_vq.c | |
| parent | cca41da1001157c95c7bc4d5cc9488232ef686d9 (diff) | |
| download | linux-fcdd19b85c7bb800ec23c9dff15092a7004cfd3f.tar.xz | |
drm/virtio: notify before waiting
Before we are going to wait for virtqueue entries becoming available
call virtio_gpu_notify() to make sure the host has seen everything
we've submitted.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20200214125535.26349-3-kraxel@redhat.com
Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_vq.c')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_vq.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 6cc259cfa517..653efb26bcd9 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -346,6 +346,7 @@ again: if (vq->num_free < elemcnt) { spin_unlock(&vgdev->ctrlq.qlock); + virtio_gpu_notify(vgdev); wait_event(vgdev->ctrlq.ack_queue, vq->num_free >= elemcnt); goto again; } |