Re: [PATCH v1] drm/virtio: Don't create a context with default param if context_init is supported

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On Sun, Oct 20, 2024 at 3:49 PM Dmitry Osipenko
<dmitry.osipenko@xxxxxxxxxxxxx> wrote:
>
> From: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@xxxxxxx>
>
> Xorg context creation fails for native contexts that use
> VIRTGPU_CONTEXT_INIT because context is already initialized implicitly
> when dumb buffer is created. Fix it by not creating default vrend context
> if context_init is supported.
>
> Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@xxxxxxx>
> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx>

Reviewed-by: Rob Clark <robdclark@xxxxxxxxx>

> ---
>  drivers/gpu/drm/virtio/virtgpu_gem.c | 8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c
> index 7db48d17ee3a..67f557e058b4 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_gem.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_gem.c
> @@ -127,15 +127,17 @@ int virtio_gpu_gem_object_open(struct drm_gem_object *obj,
>         /* the context might still be missing when the first ioctl is
>          * DRM_IOCTL_MODE_CREATE_DUMB or DRM_IOCTL_PRIME_FD_TO_HANDLE
>          */
> -       virtio_gpu_create_context(obj->dev, file);
> +       if (!vgdev->has_context_init)
> +               virtio_gpu_create_context(obj->dev, file);
>
>         objs = virtio_gpu_array_alloc(1);
>         if (!objs)
>                 return -ENOMEM;
>         virtio_gpu_array_add_obj(objs, obj);
>
> -       virtio_gpu_cmd_context_attach_resource(vgdev, vfpriv->ctx_id,
> -                                              objs);
> +       if (vfpriv->ctx_id)
> +               virtio_gpu_cmd_context_attach_resource(vgdev, vfpriv->ctx_id, objs);
> +
>  out_notify:
>         virtio_gpu_notify(vgdev);
>         return 0;
> --
> 2.47.0
>




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