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| author | Erico Nunes <ernunes@redhat.com> | 2023-07-14 17:38:58 +0200 |
|---|---|---|
| committer | Marc-André Lureau <marcandre.lureau@redhat.com> | 2023-09-12 10:37:01 +0400 |
| commit | 75f217b4addbc688d7fbff5dcc4c8d699d1f7060 (patch) | |
| tree | 7a28d348751742b9384928cf261c8494a5c672b6 /docs/interop | |
| parent | 9ef497755afc252fb8e060c9ea6b0987abfd20b6 (diff) | |
docs: vhost-user-gpu: add protocol changes for dmabuf modifiers
VHOST_USER_GPU_DMABUF_SCANOUT2 is defined as a message with all the
contents of VHOST_USER_GPU_DMABUF_SCANOUT plus the dmabuf modifiers
which were ommitted.
The VHOST_USER_GPU_PROTOCOL_F_DMABUF2 protocol feature is defined as a
way to check whether this new message is supported or not.
Signed-off-by: Erico Nunes <ernunes@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Message-Id: <20230714153900.475857-2-ernunes@redhat.com>
Diffstat (limited to 'docs/interop')
| -rw-r--r-- | docs/interop/vhost-user-gpu.rst | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/docs/interop/vhost-user-gpu.rst b/docs/interop/vhost-user-gpu.rst index b78806892d..3035822d05 100644 --- a/docs/interop/vhost-user-gpu.rst +++ b/docs/interop/vhost-user-gpu.rst @@ -134,6 +134,19 @@ VhostUserGpuEdidRequest :scanout-id: ``u32``, the scanout to get edid from +VhostUserGpuDMABUFScanout2 +^^^^^^^^^^^^^^^^^^^^^^^^^^ + ++----------------+----------+ +| dmabuf_scanout | modifier | ++----------------+----------+ + +:dmabuf_scanout: ``VhostUserGpuDMABUFScanout``, filled as described in the + VhostUserGpuDMABUFScanout structure. + +:modifier: ``u64``, the DMABUF modifiers + + C structure ----------- @@ -163,7 +176,8 @@ Protocol features .. code:: c - #define VHOST_USER_GPU_PROTOCOL_F_EDID 0 + #define VHOST_USER_GPU_PROTOCOL_F_EDID 0 + #define VHOST_USER_GPU_PROTOCOL_F_DMABUF2 1 New messages and communication changes are negotiated thanks to the ``VHOST_USER_GPU_GET_PROTOCOL_FEATURES`` and @@ -263,3 +277,13 @@ Message types Retrieve the EDID data for a given scanout. This message requires the ``VHOST_USER_GPU_PROTOCOL_F_EDID`` protocol feature to be supported. + +``VHOST_USER_GPU_DMABUF_SCANOUT2`` + :id: 12 + :request payload: ``VhostUserGpuDMABUFScanout2`` + :reply payload: N/A + + Same as VHOST_USER_GPU_DMABUF_SCANOUT, but also sends the dmabuf modifiers + appended to the message, which were not provided in the other message. + This message requires the ``VHOST_USER_GPU_PROTOCOL_F_DMABUF2`` protocol + feature to be supported. |