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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
f49a3e0a68
This change has two main advantages. First is that the previous code had a subtle bug where state updates would drop the previous state pushbuf without first guaranteeing that the queue was idle, potentially leading to a fault. This worked when I first wrote the code because we were using the old nouveau UAPI which took a list of BOs on each submit and the kernel would interanlly reference count them. With the modern UAPI, there is no such safety net. The second effect of this commit is that we're now only submitting the pushbuf when one of the pointers or ranges actually changes. This should hopefully reduce GPU stalling as setting those pointers is a pretty heavy-weight operation. Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30596> |
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`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://docs.mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_): .. code-block:: sh $ meson setup build $ ninja -C build/ $ sudo ninja -C build/ 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://docs.mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://docs.mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.