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commit dddde62780 upstream
Sub-viewport (Subvp) feature is used for changing MCLK without causing
any display artifact, requiring special treatment from the plane and
stream perspective since DC needs to read data from the cache when using
subvp. However, the function dc_commit_updates_for_stream does not
provide all the support needed by this feature which will make this
function legacy at some point. For this reason, this commit enables
dc_update_planes_and_stream for ASICs that support this feature but
preserves the old behavior for other ASICs. However,
dc_update_planes_and_stream should replace dc_commit_updates_for_stream
for all ASICs since it does most of the tasks executed by
dc_commit_updates_for_stream with other extra operations, but we need to
run tests before making this change.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Co-developed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.