c6a228be7f
[Why] In current code we're essentially drawing the cursor on every pipe that contains it. This only works when the planes have the same scaling for src to dest rect, otherwise we'll get "double cursor" where one cursor is incorrectly filtered and offset from the real position. [How] Without dedicated cursor planes on DCN we require at least one pipe that matches the scaling of the current timing. This is an optimization and workaround for the most common case where the top-most plane is not scaled but the bottom-most plane is scaled. Whenever a pipe has a parent pipe in the blending tree whose recout fully contains the current pipe we can disable the pipe. This only applies when the pipe is actually visible of course. Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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.