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Huacai Chen
3b8de01e97
For power saving or debugging purpose, we usually want to limit the SIMD (LSX/LASX) usage on a rich feature platform. So allow specify SIMD width via kernel parameters "simd=". Allowed values of "simd=" are any integers, and recommended values are: 0: Disable all SIMD features; 128: Enable at most 128bit SIMD features; 256: Enable at most 256bit SIMD features; -1(default): Enable as many as possible SIMD features automatically. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: maoxiaochuan <maoxiaochuan@loongson.cn>
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 reStructuredText 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.