Asahi Lina
140c625bda
The GL driver expects special sync handling when a buffer is newly
exported, and also requires that bo->prime_fd be set so the batch code
can use it later. Add a function to do this for the KMS export case,
which otherwise would not need a PRIME fd.
agx_bo_export() then becomes a simple dup of bo->prime_fd (which is
probably marginally faster than redoing drmPrimeHandleToFD() anyway).
The thread safety story here is that as long as we do all this the first
time a BO is exported (in any way), there is no way for another thread
to have gotten ahold of the BO already, so no need for extra locking.
This does not affect hk, since it doesn't rely on bo->prime_fd for
anything. It also doesn't affect the timestamp BO and other special
cases.
Fixes: 067d820c9d ("asahi: Mark KMS exported resource BOs as shared")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/13563
Signed-off-by: Asahi Lina <lina@asahilina.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36241>
`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.