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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
40fb95d51a
For Xe3+, the upper 8 bits of the second dword of a potential hit is used to store hitGroupIndex0, which is stuffed by the HW. This hitGroupIndex0 will later be used by the HW again to reconstruct the whole hitGroupIndex when driver issues a TRACE_RAY_COMMIT. We were corrupting this hitGroupIndex0 at the driver by setting the whole dword to hit_kind, which will cause the HW to read a wrong hitGroupIndex and therefore invoke a wrong closest hit shader. The behavior can be seen in dEQP-VK.ray_tracing_pipeline.pipeline_no_null_shaders_flag.gpu.boxes.\* and dEQP-VK.ray_tracing_pipeline.pipeline_library.configurations.\* This commit changes the driver to only use lower 24bits to store the hit_kind, and leave the upper 8bits as it. Signed-off-by: Kevin Chuang <kaiwenjon23@gmail.com> Reviewed-by: Sagar Ghuge <sagar.ghuge@intel.com> Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33047> |
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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.