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This new IOCTL allows callers to close a framebuffer without disabling planes or CRTCs. This takes inspiration from Rob Clark's unref_fb IOCTL [1] and DRM_MODE_FB_PERSIST [2]. User-space patch for wlroots available at [3]. IGT test available at [4]. v2: add an extra pad field just in case we want to extend this IOCTL in the future (Pekka, Sima). [1]: https://lore.kernel.org/dri-devel/20170509153654.23464-1-robdclark@gmail.com/ [2]: https://lore.kernel.org/dri-devel/20211006151921.312714-1-contact@emersion.fr/ [3]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/4394 [4]: https://lists.freedesktop.org/archives/igt-dev/2023-October/063294.html Signed-off-by: Simon Ser <contact@emersion.fr> Reviewed-by: Daniel Stone <daniels@collabora.com> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Dennis Filder <d.filder@web.de> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Rob Clark <robdclark@gmail.com> Cc: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231020101926.145327-2-contact@emersion.fr |
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| linux | ||
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| sound | ||
| video | ||
| xen | ||
| Kbuild | ||