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e16a375086
Alpha blending with alpha 0 and 0xff passes through alpha math and rounding logic causing differences compared to fully transparent or opaque plane,resulting in CRC mismatch. This WA on icl and above enables hardware to bypass alpha math and rounding for per pixel alpha values of 00 and 0xff v2: Fix patchwork checkpatch warnings. Signed-off-by: Vandita Kulkarni <vandita.kulkarni@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1529594036-25036-1-git-send-email-vandita.kulkarni@intel.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.