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af3b0010cd4c129636a47dbf02a720762b010ca4
This patch is useful for board with totalram size larger than 4GB. Since swiotlb has memory size limitation, this will calculate the maximum size locally, as a workaround to fix the orders[0]. With this patch: [ 3.921612] orders[0] = 6 [ 3.921647] orders[1] = 4 [ 3.921715] orders[2] = 0 Change-Id: I9286f6ea53f679816c9afd378a6cfe620ef1b53e Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
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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.
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