Kenneth Graunke 0f2f561a10 anv: Enable Gen11 Color/Z write merging optimization
TCCNTLREG contains additional L3 cache write merging optimizations.

The default value on my system appears to be:
- URB Partial Write Merging (bit 0)
- L3 Data Partial Write Merging (bit 2)
- TC Disable (bit 3)

Windows drivers appear to set bit 1 as well to enable "Color/Z Partial
Write Merging".  This should solve an issue we were seeing where MRT
benchmarks were using substantially more bandwidth than they ought.
However, we have not observed it to cause measurable FPS gains.

It is unclear whether we should be setting bit 0 or bit 3, so for now
we leave those at the hardware default value.

Acked-by: Jason Ekstrand <jason@jlekstrand.net>
2019-12-10 16:19:46 -08:00
2019-09-10 20:36:47 +00:00
2019-05-24 18:44:18 +00:00
2019-10-18 16:42:40 +00:00
2019-10-26 08:23:48 +01:00
2019-10-30 14:56:02 -07:00

`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.html
<https://mesa3d.org/install.html>`_), but the recommended way is to use
Meson (`docs/meson.html <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
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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.html <https://mesa3d.org/bugs.html>`_).


Contributing
------------

Contributions are welcome, and step-by-step instructions can be found in our
documentation (`docs/submittingpatches.html
<https://mesa3d.org/submittingpatches.html>`_).

Note that Mesa uses email mailing-lists for patches submission, review and
discussions.
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