Kenneth Graunke dd508b2bed iris: Don't advertise Y-tiled modifiers for scanout buffers on Gfx8
According to isl_gfx7.c:264, the display engine does not support Y
tiled buffers prior to Skylake.  But we exposed I915_FORMAT_MOD_Y_TILED
even when querying for a list of modifiers with PIPE_BIND_SCANOUT set,
which we can't support.  That led to crashes later when we tried to
create such an image, and isl rightly denied it.

Fixes crashes in wflinfo since c03e79d783, but the bug exists before
that and it's probably worth a stable backport even without that patch.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/4815
Fixes: c03e79d783 ("loader/dri: hook up createImageWithModifiers2")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10907>
2021-05-21 01:10:47 +00:00
2021-05-07 13:41:38 +00:00
2020-01-18 11:39:32 +01:00
2021-03-20 10:38:55 +00:00
2021-05-19 13:50:07 +00:00
2021-05-05 18:53:08 +00:00
2021-04-14 21:11:07 +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 `Freenode's #dri-devel
<irc://chat.freenode.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.
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