[PATCH] gpu: add missing controlq (3d) struct listings
Manos Pitsidianakis <[email protected]> Wed, 04 Mar 2026 09:41:17 +0200
| Newsgroups | dev.linux.lists.virtio-comment |
|---|---|
| Message-ID | <[email protected]> |
Lifted from include/uapi/linux/virtio_gpu.h with adjustments. Fixes: https://github.com/oasis-tcs/virtio-spec/issues/239 Signed-off-by: Manos Pitsidianakis <[email protected]> --- device-types/gpu/description.tex | 75 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 74 insertions(+), 1 deletion(-) diff --git a/device-types/gpu/description.tex b/device-types/gpu/description.tex index ac3b427725f6036ca069b398fdde712cab833225..5adf02c5ac9bd80fb0986bc3847cff0698f85801 100644 --- a/device-types/gpu/description.tex +++ b/device-types/gpu/description.tex @@ -749,21 +749,94 @@ \subsubsection{Device Operation: controlq (3d)}\label{sec:Device Types / GPU Dev If the lower 8-bits of the \field{context_init} are zero, then the type of the context is determined by the device. -\item[VIRTIO_GPU_CMD_CTX_DESTROY] +\item[VIRTIO_GPU_CMD_CTX_DESTROY] destroyes a context. + Request data is \field{struct virtio_gpu_ctx_destroy}. + Response type is VIRTIO_GPU_RESP_OK_NODATA. + +\begin{lstlisting} +struct virtio_gpu_ctx_destroy { + struct virtio_gpu_ctrl_hdr hdr; +}; +\end{lstlisting} + \item[VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE] \item[VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE] Manage virtio-gpu 3d contexts. + Request data is \field{struct virtio_gpu_ctx_resource}. + Response type is VIRTIO_GPU_RESP_OK_NODATA. + +\begin{lstlisting} +struct virtio_gpu_ctx_resource { + struct virtio_gpu_ctrl_hdr hdr; + le32 resource_id; + le32 padding; +}; +\end{lstlisting} \item[VIRTIO_GPU_CMD_RESOURCE_CREATE_3D] Create virtio-gpu 3d resources. + Request data is \field{struct virtio_gpu_resource_create_3d}. + Response type is VIRTIO_GPU_RESP_OK_NODATA. + +\begin{lstlisting} +#define VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP (1 << 0) +struct virtio_gpu_resource_create_3d { + struct virtio_gpu_ctrl_hdr hdr; + le32 resource_id; + le32 target; + le32 format; + le32 bind; + le32 width; + le32 height; + le32 depth; + le32 array_size; + le32 last_level; + le32 nr_samples; + le32 flags; + le32 padding; +}; +\end{lstlisting} \item[VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D] \item[VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D] Transfer data from and to virtio-gpu 3d resources. + Request data is \field{struct virtio_gpu_transfer_host_3d}. + Response type is VIRTIO_GPU_RESP_OK_NODATA. + +\begin{lstlisting} +struct virtio_gpu_box { + le32 x, y, z; + le32 w, h, d; +}; + +struct virtio_gpu_transfer_host_3d { + struct virtio_gpu_ctrl_hdr hdr; + struct virtio_gpu_box box; + le64 offset; + le32 resource_id; + le32 level; + le32 stride; + le32 layer_stride; +}; +\end{lstlisting} \item[VIRTIO_GPU_CMD_SUBMIT_3D] Submit an opaque command stream. The type of the command stream is determined when creating a context. + Request data is \field{struct virtio_gpu_cmd_submit}, followed by the stream bytes. + Response type is VIRTIO_GPU_RESP_OK_NODATA. + +\begin{lstlisting} +struct virtio_gpu_cmd_submit { + struct virtio_gpu_ctrl_hdr hdr; + le32 size; + le32 padding; +}; +\end{lstlisting} + +\begin{description} + \item[\field{size}] the size of the opaque command stream in bytes. +\end{description} \item[VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB] maps a host-only blob resource into an offset in the host visible memory region. Request --- base-commit: 1ba6e8108644d598cf9c772bac7b856fb5c7df6b change-id: 20260304-virtio-gpu-missing-structs-dc8f75a7d370 Best regards, -- Manos Pitsidianakis <[email protected]>