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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
57a254c48d
This reverts a previous half-attempt at an implementation of events using a BO to hold the event state, and provides a full implementation. V3D doesn't have any built-in GPU functionality to wait on any kind of events, so we need to implement this in the driver an therefore we no longer need to use a BO for the event state. Instead, we implement GPU waits by using a CPU job for the wait operation that spawns a wait thread if the wait operation doesn't have all its events signaled by the time it is processed. To implement the semantics of the wait correctly, any jobs in the same command buffer that come after the wait will not be emitted until the wait thread completes. If a submit spawns any wait threads for a command buffer we can't signal any semaphores for it until all the wait threads complete and we know that all the jobs for those command buffers have been submitted. The same applies to the submit fence, if present. Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766> |
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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://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 `Freenode's #dri-devel <irc://chat.freenode.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.