Simon Ser 41ad36623f amd/display: remove ChromeOS workaround
This reverts commits ddab8bd788f5 ("drm/amd/display: Fix two cursor duplication
when using overlay") and e7d9560aeae5 ("Revert "drm/amd/display: Fix overlay
validation by considering cursors"").

tl;dr ChromeOS uses the atomic interface for everything except the cursor. This
is incorrect and forces amdgpu to disable some hardware features. Let's revert
the ChromeOS-specific workaround in mainline and allow the Chrome team to keep
it internally in their own tree.

See [1] for more details. This patch is an alternative to [2], which added
ChromeOS detection.

[1]: https://lore.kernel.org/amd-gfx/JIQ_93_cHcshiIDsrMU1huBzx9P9LVQxucx8hQArpQu7Wk5DrCl_vTXj_Q20m_L-8C8A5dSpNcSJ8ehfcCrsQpfB5QG_Spn14EYkH9chtg0=@emersion.fr/
[2]: https://lore.kernel.org/amd-gfx/20211011151609.452132-1-contact@emersion.fr/

Signed-off-by: Simon Ser <contact@emersion.fr>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Harry Wentland <hwentlan@amd.com>
Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Cc: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Sean Paul <seanpaul@chromium.org>
Fixes: ddab8bd788f5 ("drm/amd/display: Fix two cursor duplication when using overlay")
Fixes: e7d9560aeae5 ("Revert "drm/amd/display: Fix overlay validation by considering cursors"")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-10-22 10:11:52 -04:00
2021-09-17 09:23:44 -07:00
2021-09-22 15:30:40 +10:00
2021-09-07 12:08:04 -07:00
2021-09-19 12:55:12 -07:00
2021-09-03 15:33:47 -07:00
2021-09-09 16:05:10 -07:00
2021-09-19 13:00:23 -07:00
2021-09-19 17:28:22 -07:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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