Leandro Ribeiro
2b6a421915
pipe_loader_get_compatible_render_capable_device_fd() receives the fd of a KMS-only platform device, find a compatible render-only device that is available and returns the fd of its DRM render node. This function will be helpful to fix a long standing issue that is preventing us to add support for EGL_EXT_device_drm_render_node for split display/render SoCs. And it will also help KMSRO to select a render-only driver that we are sure that is compatible, because currently KMSRO uses whatever render-only driver is available. In sort, in the EGL GBM platform case, the GBM device may be created with a KMS-only device. The information of what render driver will be selected by KMSRO is not available before creating the EGLDevice global list. Without this information we don't have a render node to use in the EGL_EXT_device_drm_render_node query. We've tried to fix this before, but failed. See [1-2]. For the moment, this function only works for platform KMS-only devices. For other types of KMS-only devices, we'll need to add more heuristics. [1] Detailed explanation of the issue: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5591 [2] Previous attempt to fix: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12796 Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com> Reviewed-by: Simon Ser <contact@emersion.fr> Reviewed-by: Daniel Stone <daniels@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24825>
`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library ====================================================== Source ------ This repository lives at https://gitlab.freedesktop.org/mesa/mesa. Other repositories are likely forks, and code found there is not supported. Build & install --------------- You can find more information in our documentation (`docs/install.rst <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_): .. code-block:: sh $ mkdir build $ cd build $ meson .. $ sudo ninja install Support ------- Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on `OFTC's #dri-devel <irc://irc.oftc.net/dri-devel>`_, someone will redirect you if necessary. Remember that not everyone is in the same timezone as you, so it might take a while before someone qualified sees your question. To figure out who you're talking to, or which nick to ping for your question, check out `Who's Who on IRC <https://dri.freedesktop.org/wiki/WhosWho/>`_. The next best option is to ask your question in an email to the mailing lists: `mesa-dev\@lists.freedesktop.org <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_ Bug reports ----------- If you think something isn't working properly, please file a bug report (`docs/bugs.rst <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.