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Paulo Zanoni 28f677e6dc iris: implement inter-context busy-tracking 
Previously, no buffers were ever marked as EXEC_OBJECT_ASYNC so the
Kernel would ensure dependency tracking for us. After we implemented
explicit busy tracking in commit 89a34cb845, only the external
objects kept relying on the Kernel's implicit tracking and Iris did
inter-batch busy tracking, meaning we lost inter-screen and
inter-context synchronization. This seemed fine to me since, as far as
I understdood, it is the duty of the application to synchronize itself
against multiple screens and contexts.

The problem here is that applications were actually relying on the old
behavior where the Kernel guarantees synchronization, so 89a34cb845
can be seen as a regression. This commit addresses the inter-context
synchronization case.

v2: Rebase after the changes from a90a1f15a7. This new version is
significantly different.

Cc: mesa-stable (see the backport in MR !14783)
References: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14783
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5731
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5812
Fixes: 89a34cb845 ("iris: switch to explicit busy tracking")
References: a90a1f15a7 ("iris: Create an IRIS_BATCH_BLITTER for using the BLT command streamer")
Tested-by: Konstantin Kharlamov <hi-angel@yandex.ru> (v1)
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14505>
2022-02-01 00:34:55 +00:00
.gitlab/issue_templates issue_templates/Bug Report: Rename master branch to main 2021-05-05 12:20:11 -07:00
.gitlab-ci ci: Use a dlclose-disabling preload library for leak checking in Vulkan. 2022-01-27 23:47:46 +00:00
android gallium/swr: Remove common code and build options 2021-12-06 23:37:50 +00:00
bin bin/gen_calendar_entries: fix newlines on windows 2022-01-16 08:39:44 +00:00
build-support configure: commit test files 2017-10-16 16:32:43 -07:00
docs docs/anv: add descriptor memory layout 2022-01-31 07:59:00 +00:00
include dri_interface: Remove the remaining DRI1 API definitions 2022-01-26 23:56:16 +00:00
src iris: implement inter-context busy-tracking 2022-02-01 00:34:55 +00:00
subprojects meson: Update libelf wrap for Windows 2021-11-12 09:46:10 +00:00
.dir-locals.el dir-locals.el: Adds White Space support 2016-11-14 19:17:49 +02:00
.editorconfig editorconfig: Use 3-space tabs for .rst 2021-06-22 17:37:55 +00:00
.gitattributes Add new rules to .gitattributes 2022-01-19 15:17:17 +00:00
.gitignore intel/tools: Add unit tests for assembler 2019-05-07 14:33:48 -07:00
.gitlab-ci.yml ci: Use a dlclose-disabling preload library for leak checking in Vulkan. 2022-01-27 23:47:46 +00:00
.mailmap .mailmap: Switch Jason Ekstrand to @collabora.com 2022-01-26 20:08:31 +00:00
.travis.yml travis: Download XQuartz from GitHub. 2021-05-29 10:25:16 +00:00
CODEOWNERS CODEOWNERS: remove ownership of deleted code 2021-12-07 22:54:27 +00:00
meson.build ci: Use a dlclose-disabling preload library for leak checking in Vulkan. 2022-01-27 23:47:46 +00:00
meson_options.txt ci: Use a dlclose-disabling preload library for leak checking in Vulkan. 2022-01-27 23:47:46 +00:00
README.rst docs: promote #dri-devel on oftc over freenode 2021-05-24 09:21:48 +00:00
VERSION VERSION: bump to 22.0 2021-10-13 20:52:19 +01:00

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://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.