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35d5f224a5
On A+A platform, vram can be mapped as WB. Not necessarily to always map vram as WC on such platform. Calling function arch_io_reserve_memtype_wc will mark the whole vram region as WC. So don't call it for A+A platform. Signed-off-by: Oak Zeng <Oak.Zeng@amd.com> Suggested-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Christian Konig <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <felix.kuehling@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.