Keith Packard 67a2c1493c vulkan: Add VK_EXT_calibrated_timestamps extension (radv and anv) [v5]
Offers three clocks, device, clock monotonic and clock monotonic
raw. Could use some kernel support to reduce the deviation between
clock values.

v2:
	Ensure deviation is at least as big as the GPU time interval.

v3:
	Set device->lost when returning DEVICE_LOST.
	Use MAX2 and DIV_ROUND_UP instead of open coding these.
	Delete spurious TIMESTAMP in radv version.

	Suggested-by: Jason Ekstrand <jason@jlekstrand.net>
	Suggested-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

v4:
	Add anv_gem_reg_read to anv_gem_stubs.c

	Suggested-by: Jason Ekstrand <jason@jlekstrand.net>

v5:
	Adjust maxDeviation computation to max(sampled_clock_period) +
	sample_interval.

	Suggested-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
	Suggested-by: Jason Ekstrand <jason@jlekstrand.net>

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
2018-10-17 20:10:15 -07:00
2018-08-16 13:53:10 -07:00
2016-08-30 16:44:00 -04:00
2017-09-06 17:48:50 +01:00
2018-08-16 13:52:56 -07:00
2018-08-02 18:00:15 +03:00

`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 status
------------

Travis:

.. image:: https://travis-ci.org/mesa3d/mesa.svg?branch=master
    :target: https://travis-ci.org/mesa3d/mesa

Appveyor:

.. image:: https://img.shields.io/appveyor/ci/mesa3d/mesa.svg
    :target: https://ci.appveyor.com/project/mesa3d/mesa

Coverity:

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    :target: https://scan.coverity.com/projects/mesa


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
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.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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