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| author |  Daniel Stone <daniels@collabora.com>
| 2023-08-03 16:47:29 +0100 |
|---|---|---|
| committer |  Simon Ser <contact@emersion.fr>
| 2023-08-21 18:20:05 +0200 |
| commit | 504245a5ab6b6e1bfe0280baa4885c551e082099 (patch) | |
| tree | c68649063bf017f7f83d473d48236714fe091736 /Documentation/gpu | |
| parent | doc: dma-buf: Rewrite intro section a little (diff) | |
| download | linux-504245a5ab6b6e1bfe0280baa4885c551e082099.tar.gz linux-504245a5ab6b6e1bfe0280baa4885c551e082099.tar.bz2 linux-504245a5ab6b6e1bfe0280baa4885c551e082099.zip | |
doc: uapi: Add document describing dma-buf semantics
Since there's a lot of confusion around this, document both the rules
and the best practices around negotiating, allocating, importing, and
using buffers when crossing context/process/device/subsystem boundaries.
This ties up all of dma-buf, formats and modifiers, and their usage.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20230803154908.105124-4-daniels@collabora.com
Diffstat (limited to 'Documentation/gpu')
| -rw-r--r-- | Documentation/gpu/drm-uapi.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/gpu/drm-uapi.rst b/Documentation/gpu/drm-uapi.rst index 65fb3036a580..eef5fd19bc92 100644 --- a/Documentation/gpu/drm-uapi.rst +++ b/Documentation/gpu/drm-uapi.rst @@ -486,3 +486,10 @@ and the CRTC index is its position in this array. .. kernel-doc:: include/uapi/drm/drm_mode.h :internal: + + +dma-buf interoperability +======================== + +Please see Documentation/userspace-api/dma-buf-alloc-exchange.rst for +information on how dma-buf is integrated and exposed within DRM. |