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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
e99ab86f77
We have been relying on NIR's gather info pass for this but it is not safe unless we are certain we are always calling it after any other pass that may emit a control barrier. As it stands, nir_zero_initialize_shared_memory can emit a control barrier and we don't call the gather info pass after it, which is problematic. The only reason this is not really a problem right now is because for non-scoped barriers (which is what we currently use) it doesn't emit a scoped barrier, just a regular memory barrier (which is probably a bug in the pass!), but as soon as we move to scoped barriers, this is going to be a problem, since we need to know when we emit a control barrier to ensure supergroup calculations prevent deadlocks at the barrier op. Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23228> |
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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 `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.