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Paulo Zanoni 0802bbd486 anv/trtt: don't submit empty batches when there are no binds to do 
The application can submit bind operations where it simply resets
state that is already in our page tables, so there's nothing to do.
Before commit 7da5b1caef ("anv: move trtt submissions over to the
anv_async_submit") we would simply return and not submit any batches
when this happened, but the commit reorganized things in a way where
we started submitting empty batches instead.

Fix this by simply jumping out when we detect this case. Because of
this, rename the "error" labels to "out" as they can now happen on a
happy case.

It should be noted that an alternative to this implementation would be
to move all the handling of 'submit' to after the n_lX_binds check,
but this would put all the initialization inside the trtt->mutex,
creating extra contention even when we have stuff to bind. Since the
"there's nothing to bind" check is now rare (after we stopped doing
NULL binds during resource creation), it is probably better to reduce
lock contention in the common case at the expense of a little more CPU
in the rare case.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30953>
2024-10-15 23:05:31 +00:00
.ci-farms Revert "ci: disable Collabora's farm due to maintenance" 2024-10-14 19:02:59 +00:00
.ci-farms-disabled Revert "ci: disable Collabora's farm due to maintenance" 2024-10-14 19:02:59 +00:00
.github/workflows add zink to macos ci 2022-11-22 19:04:13 +00:00
.gitlab gitlab: Reference hang debugging documenttion 2024-05-16 09:47:53 +00:00
.gitlab-ci Uprev Piglit to 7ce69da1199d12ed0ddaa251ed489750523798fb 2024-10-15 15:50:47 +01:00
android android: gbm: split the DRI backend into separate library 2024-09-30 13:56:19 +02:00
bin ci: Make token parsing more robust 2024-09-20 11:03:50 +00:00
build-support meson: move tsan-blacklist.txt to build-support with the other build support files 2024-05-01 07:05:12 +00:00
docs release: push 24.3 out two weeks 2024-10-15 14:59:50 -07:00
include intel/dev: Add 0xb640 ARL PCI id 2024-10-14 19:43:35 +00:00
src anv/trtt: don't submit empty batches when there are no binds to do 2024-10-15 23:05:31 +00:00
subprojects ci: Bump DirectX-Headers and Agility SDK dependencies to 1.614.1 2024-09-12 15:01:18 +00:00
.clang-format meson: enable the clang-format target 2023-05-29 11:57:08 +00:00
.clang-format-ignore ci: enforce formatting for RADV & ACO 2023-06-16 19:59:52 +00:00
.clang-format-include r300: opt in to clang-format CI enforcement for the compiler 2024-10-15 09:24:02 +00:00
.dir-locals.el dir-locals.el: Adds White Space support 2016-11-14 19:17:49 +02:00
.editorconfig glsl: Fixes ident issue in glsl_parser.yy and update editorconfig for it 2022-12-16 19:02:17 +00:00
.git-blame-ignore-revs freedreno: Add reformatting commits to .git-blame-ignore-revs 2023-09-22 02:07:36 +00:00
.gitattributes gitlab: Highlight .cl as C 2023-11-02 11:37:46 +00:00
.gitignore .gitignore: add .cache folder 2024-05-13 14:32:12 +00:00
.gitlab-ci.yml ci/image-tags: add DEBIAN_PYUTILS_TAG 2024-10-02 13:29:33 +00:00
.graphqlrc.yml ci/bin: Add utility to find jobs dependencies 2022-08-03 23:10:37 +00:00
.mailmap mailmap: update rohan's primary email address 2024-06-19 09:06:15 +00:00
.mr-label-maker.yml mr-label-maker: add gfxstream 2024-09-26 18:53:58 +00:00
CODEOWNERS CODEOWNERS: update Imagination maintainers 2024-01-19 10:26:15 +00:00
meson.build fix(FTBFS): build: link OpenCL target with dep_clang from top-level 2024-09-29 11:38:54 +00:00
meson_options.txt rusticl: allow asahi to be enabled by default 2024-10-10 18:24:31 +00:00
README.rst docs: Match README installation guide with meson.rst 2024-07-27 11:53:53 +00:00
VERSION VERSION: bump to 24.3 2024-07-19 16:37:23 +00:00

README.rst 

`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.