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The plane hardware is used when the display scanout run into plane active scanout, that means we can reuse the plane hardware resources on plane non-active scanout. Because resource share, There are some limit on share plane: one group of share planes need use same zpos, can't not overlap, etc. We assume share plane is a universal plane with some limit flags. people who use the share plane need know the limit, should call the ioctl DRM_CLIENT_CAP_SHARE_PLANES, and judge the planes limit before use it. Change-Id: Iecc3d8e7f1ce29d567cdbad689ba4dbad3d594e1 Signed-off-by: Mark Yao <mark.yao@rock-chips.com> Signed-off-by: Sandy Huang <hjc@rock-chips.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.