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af2d51eafa
We can drop RT flush and PS Scoreboard stall if state cache perf fix disabled is set to 1. If bit is set RCC uses the sum of Binding Table Pointer and Binding Table Index as tag in state cache instead of just Binding Table Index. On DX12 this is a performance win on all workloads we've tested. On DX11 there are a bunch of performance of regression. We think this is due to the fact that to avoid trashing the RCC, we need to remove all but render targets from the binding table, meaning all shader resource accesses have to go through the bindless HW heap. This leads to additional register usage due to the need to push the base offset of descriptor sets. Improvement in the compiler would likely mitigate this. This change introduce a DRIRC key we only turn on for DX12. Also platforms prior to DG2/LSC have a really small bindless heap that leads to additional register usage, so this optimization is completely disable there. Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/10872 Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/10873 Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/14075 Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39982> |
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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.