From: Rob Clark <[email protected]>

It would have been cleaner to have a flag to *request* the fence event.
But that ship has sailed.  So add a flag so that userspace which doesn't
care about the events can opt-out.

Signed-off-by: Rob Clark <[email protected]>
---
 drivers/gpu/drm/virtio/virtgpu_ioctl.c | 8 +++++---
 include/uapi/drm/virtgpu_drm.h         | 2 ++
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c 
b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 3a8078f2ee27..09f1aa263f91 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -225,9 +225,11 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device 
*dev, void *data,
                goto out_unresv;
        }
 
-       ret = virtio_gpu_fence_event_create(dev, file, out_fence, ring_idx);
-       if (ret)
-               goto out_unresv;
+       if (!(exbuf->flags & VIRTGPU_EXECBUF_NO_EVENT)) {
+               ret = virtio_gpu_fence_event_create(dev, file, out_fence, 
ring_idx);
+               if (ret)
+                       goto out_unresv;
+       }
 
        if (out_fence_fd >= 0) {
                sync_file = sync_file_create(&out_fence->f);
diff --git a/include/uapi/drm/virtgpu_drm.h b/include/uapi/drm/virtgpu_drm.h
index 0512fde5e697..d06cac3407cc 100644
--- a/include/uapi/drm/virtgpu_drm.h
+++ b/include/uapi/drm/virtgpu_drm.h
@@ -52,10 +52,12 @@ extern "C" {
 #define VIRTGPU_EXECBUF_FENCE_FD_IN    0x01
 #define VIRTGPU_EXECBUF_FENCE_FD_OUT   0x02
 #define VIRTGPU_EXECBUF_RING_IDX       0x04
+#define VIRTGPU_EXECBUF_NO_EVENT       0x08
 #define VIRTGPU_EXECBUF_FLAGS  (\
                VIRTGPU_EXECBUF_FENCE_FD_IN |\
                VIRTGPU_EXECBUF_FENCE_FD_OUT |\
                VIRTGPU_EXECBUF_RING_IDX |\
+               VIRTGPU_EXECBUF_NO_EVENT |\
                0)
 
 struct drm_virtgpu_map {
-- 
2.35.1

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