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cl_ext_buffer_device_address requires us to set a fixed address for a given memory allocation. As this extension is intended to be implemented on top of vulkan we have to take its limitations into account. For SVM we'll add proper VM management interfaces, but zink won't be able to implement those, so here we are. The old interfaces added back in clover's time were modeled after a very bindful resource model and the frontend was require to bind all the used resources ahead of launch_grid. cl_ext_buffer_device_address and also SVM however will require us to dynamically attach a list of buffers used in a dispatch with known addresses, hence set_global_binding isn't really suited for those use cases. So PIPE_RESOURCE_FLAG_FIXED_ADDRESS is added to tell a driver that the address of a resource needs to stay the same over its lifetime, which then can be queried via pipe_screen::resource_get_address. All such buffers then can be either bound via set_global_binding or passed in via pipe_grid_info::globals. Reviewed-by: Adam Jackson <ajax@redhat.com> Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Reviewed-by: Marek Olšák <marek.olsak@amd.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32942> |
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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.