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487586fefa
Push constants on bindless stages of Gfx12.5+ don't get the data delivered in the registers automatically. Instead the shader needs to load the data with SEND messages. Those stages do get a single InlineParameter 32B block of data delivered into the EU. We can use that to promote some of the push constant data that has to be pulled otherwise. The driver will try to promote all push constant data (app + driver values) if it can, if it can't it'll try to promote only the driver values (usually a shader will only use a few driver values). If even the drivers values won't fit, give up and don't use the inline parameter at all. LNL internal fossil-db: Totals from 315738 (20.08% of 1572649) affected shaders: Instrs: 155053691 -> 154920901 (-0.09%); split: -0.09%, +0.00% CodeSize: 2578204272 -> 2574991568 (-0.12%); split: -0.15%, +0.02% Send messages: 8235628 -> 8184485 (-0.62%); split: -0.62%, +0.00% Cycle count: 43911938816 -> 43901857748 (-0.02%); split: -0.05%, +0.03% Spill count: 481329 -> 473185 (-1.69%); split: -1.82%, +0.13% Fill count: 405617 -> 399243 (-1.57%); split: -1.86%, +0.28% Max live registers: 34309395 -> 34309300 (-0.00%); split: -0.00%, +0.00% Max dispatch width: 8298224 -> 8299168 (+0.01%) Non SSA regs after NIR: 18492887 -> 17631285 (-4.66%); split: -4.73%, +0.08% Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39405> |
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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.