[PATCH] drm/virtio: Add capset definitions

[Gurchetan Singh]

On Tue, Mar 25, 2025 at 8:42 AM Aaron Ruby <aruby at qnx.com> wrote:

> From 73e0b6fb04d90b70de1f40e8e2ffc8fe497fa204 Mon Sep 17 00:00:00 2001
> From: Aaron Ruby <aruby at qnx.com>
> Date: Mon, 24 Mar 2025 16:18:43 -0400
> Subject: [PATCH] drm/virtio: Add capset definitions
>
> Since the context-type additions to the virtio-gpu spec, these have been
> defined locally in guest user-space, and virtio-gpu backend library code.
>
> Now, these capsets have been stabilized, and should be defined in
> a common space, in both the virtio_gpu header, and alongside the
> virtgpu_drm
> interface that they apply to.
> ---
>  include/uapi/drm/virtgpu_drm.h  | 6 ++++++
>  include/uapi/linux/virtio_gpu.h | 3 ++-
>  2 files changed, 8 insertions(+), 1 deletion(-)
>
> diff --git a/include/uapi/drm/virtgpu_drm.h
> b/include/uapi/drm/virtgpu_drm.h
> index c2ce71987e9b..9debb320c34b 100644
> --- a/include/uapi/drm/virtgpu_drm.h
> +++ b/include/uapi/drm/virtgpu_drm.h
> @@ -163,6 +163,12 @@ struct drm_virtgpu_3d_wait {
>          __u32 flags;
>  };
>
> +#define VIRTGPU_DRM_CAPSET_VIRGL 1
> +#define VIRTGPU_DRM_CAPSET_VIRGL2 2
> +#define VIRTGPU_DRM_CAPSET_GFXSTREAM_VULKAN 3
> +#define VIRTGPU_DRM_CAPSET_VENUS 4
> +#define VIRTGPU_DRM_CAPSET_CROSS_DOMAIN 5
> +#define VIRTGPU_DRM_CAPSET_DRM 6
>  struct drm_virtgpu_get_caps {
>          __u32 cap_set_id;
>          __u32 cap_set_ver;
> diff --git a/include/uapi/linux/virtio_gpu.h
> b/include/uapi/linux/virtio_gpu.h
> index bf2c9cabd207..be109777d10d 100644
> --- a/include/uapi/linux/virtio_gpu.h
> +++ b/include/uapi/linux/virtio_gpu.h
> @@ -309,8 +309,9 @@ struct virtio_gpu_cmd_submit {
>
>  #define VIRTIO_GPU_CAPSET_VIRGL 1
>  #define VIRTIO_GPU_CAPSET_VIRGL2 2
> -/* 3 is reserved for gfxstream */
> +#define VIRTIO_GPU_CAPSET_GFXSTREAM_VULKAN 3
>  #define VIRTIO_GPU_CAPSET_VENUS 4
> +#define VIRTIO_GPU_CAPSET_CROSS_DOMAIN 5
>  #define VIRTIO_GPU_CAPSET_DRM 6
>
>  /* VIRTIO_GPU_CMD_GET_CAPSET_INFO */
> --
> 2.25.1
>

Reviewed-by: Gurchetan Singh <gurchetansingh at chromium.org>


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