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Samuel Pitoiset 1e010348ee radv: remove color exports in presence of holes
If there is holes, eg. if only MRT0 and MRT2 are exported, we have to
set MRT1 to SPI_SHADER_32_R to avoid a GPU hang but the export can
still be removed from the fragment shader.

fossils-db (Sienna Cichlid):
Totals from 565 (0.42% of 134913) affected shaders:
VGPRs: 13328 -> 11456 (-14.05%)
CodeSize: 613232 -> 548224 (-10.60%); split: -11.13%, +0.53%
LDS: 284672 -> 296960 (+4.32%)
MaxWaves: 17624 -> 17684 (+0.34%)
Instrs: 113056 -> 100445 (-11.15%); split: -11.68%, +0.53%
Latency: 684327 -> 639348 (-6.57%); split: -7.17%, +0.60%
InvThroughput: 122877 -> 104382 (-15.05%); split: -15.18%, +0.13%
VClause: 2601 -> 2323 (-10.69%); split: -10.77%, +0.08%
SClause: 5629 -> 5443 (-3.30%); split: -3.91%, +0.60%
Copies: 9393 -> 8720 (-7.16%); split: -8.22%, +1.05%
PreSGPRs: 14623 -> 13666 (-6.54%); split: -6.76%, +0.22%
PreVGPRs: 9847 -> 8503 (-13.65%)

fossils-db (Polaris10):
Totals from 565 (0.42% of 135960) affected shaders:
SGPRs: 28064 -> 27104 (-3.42%)
VGPRs: 12516 -> 10544 (-15.76%); split: -15.79%, +0.03%
CodeSize: 516920 -> 456536 (-11.68%); split: -11.68%, +0.00%
MaxWaves: 4369 -> 4418 (+1.12%)
Instrs: 97771 -> 85903 (-12.14%); split: -12.14%, +0.00%
Latency: 767482 -> 708545 (-7.68%); split: -7.97%, +0.29%
InvThroughput: 280017 -> 235744 (-15.81%)
VClause: 2270 -> 2090 (-7.93%); split: -8.50%, +0.57%
SClause: 5185 -> 5012 (-3.34%); split: -3.86%, +0.52%
Copies: 8328 -> 7555 (-9.28%); split: -9.35%, +0.07%
Branches: 1143 -> 1113 (-2.62%)
PreSGPRs: 13816 -> 12725 (-7.90%); split: -7.92%, +0.02%
PreVGPRs: 9707 -> 8270 (-14.80%)

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15108>
2022-03-01 12:28:47 +01:00
.gitlab/issue_templates issue_templates/Bug Report: Rename master branch to main 2021-05-05 12:20:11 -07:00
.gitlab-ci ci: skqp: Add Vulkan support for a630_skqp job 2022-02-25 05:50:06 +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 turnip: Implement VK_EXT_physical_device_drm 2022-03-01 07:10:40 +00:00
include include/drm-uapi: update amdgpu_drm.h for new CTX OP to set/get stable pstates 2022-02-21 11:16:11 +00:00
src radv: remove color exports in presence of holes 2022-03-01 12:28:47 +01:00
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 Revert "ci: Disable jobs to the Collabora lab" 2022-02-24 13:44:09 +01:00
.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 meson: bump libdrm_amdgpu version to 2.4.110 2022-02-21 11:16:11 +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 version for 22.0 release 2022-02-02 22:49:09 +00:00

`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.