mirror of
https://gitlab.freedesktop.org/mesa/mesa.git
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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
646a7c864d
On Gfx12.0, CCS allocations have to be allocated per image because the format of the image goes into the AUX-TT PTEs. The effect on memory allocations is limited since the main surface granularity in the AUX-TT PTE is 64KB. On Gfx12.5, the granularity of the AUX-TT PTE is 1MB. This creates a lot of waste in the application memory allocations. Fortunately the HW doesn't care about the format put into the PTEs anymore. So it becomes possible to have 2 images share the same PTE. To implement this we bring back an earlier version of AUX-TT mappings where we used to allocate additional CCS space at the end of the VkDeviceMemory objects. On Gfx12.5, if the BO has additional CCS space, we will now map the main surface to that space. Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Reviewed-by: Jianxun Zhang <jianxun.zhang@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26822> |
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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://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <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 `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://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.