Wesley Chalmers 482812d566 drm/amd/display: Set max TTU on DPG enable
[WHY]
There is a bug in HW that causes P-State to hang when DPG is enabled in
certain conditions.

[HOW]
The solution is to force MIN_TTU_VBLANK register to maximum value
whenever DPG has been enabled.
Make stream do a full update on test pattern change, so that the TTUs
get updated.
When DPG is enabled, update the ttu_regs.min_ttu_vblank field of each
pipe in the stream's topology to the maximum value (0xffffff).

v2: squash in build fix for when DCN is not defined (Alex)

Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-04-09 16:48:53 -04:00
2021-03-16 17:08:46 +10:00
2021-03-16 17:08:46 +10:00
2021-02-25 10:17:31 -08:00
2021-02-24 09:38:36 -08:00
2021-02-26 09:41:03 -08:00
2021-02-26 09:41:03 -08:00
2021-04-08 12:42:14 +10:00
2021-03-14 14:41:02 -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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