Francisco Jerez
8252bb0ec6
The iris_blorp_exec() hook needs to be executed under a single indivisible sync region, which means that in cases where we need to emit a PIPE_CONTROL for a buffer barrier we won't be able to track the subsequent commands separately from the previous commands, which will prevent us from optimizing out subsequent PIPE_CONTROLs if we encounter the same buffers again. In particular I've encountered this situation in some SynMark test-cases which perform lots of BLORP operations with the same buffer bound as both source and destination (in order to generate mipmaps): In such a scenario if the source requires flushing we'd also end up flushing for the destination redundantly, even though a single PIPE_CONTROL would have been sufficient. This avoids a 4.5% FPS regression in SynMark OglHdrBloom and a 3.5% FPS regression in SynMark OglMultithread. Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3875>
`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.html <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.html <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.html <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.html <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.