Paulo Zanoni
5ca224aa0c
On Gen12 (the oldest we support on Mesa right now for TR-TT) we started having per-engine TR-TT registers and we are supposed to make all contexts share the same TR-TT programming. On LNL+, this is documented in the BSpec page for the TRTT_CNTRL register (68417), with more details in HSDs 14020454786 and 16022013154. On Gen12 platforms this information is a little harder to find and there's a whole trail of HSDs leading up to 1209977595, which links to the documents that describe the programming. BSpec for TR-TT on Gen12 is very confusing as it still contains registers and other information from Gen11 that were not removed. Regarding the additional BLT and COMP registers, please notice that on the BSpec pages for the TR-TT registers, the "Register Instance" section only lists the GFX registers as non-privileged. However, the "User Mode Privileged Commands" lists the other instances of the TR-TT Regsiters as non-privileged, which matches what we see: there's no need to put these addresses in the FORCE_TO_NONPRIV registers. Notice that for now, when TR-TT is being used we only expose a single queue, so this change effectively does nothing until we start exposing extra queues. I left that part for later to help bisectability. v2: - s/trtt_init_context_state/trtt_init_queues_state/ (José) - pass device as the argument to init_queues_state (José) v3: - use async_submit_end (José) Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30252>
`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 $ 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://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.