c93f261dfc
There's currently no documentation for the swiotlb. Add documentation describing usage scenarios, the key APIs, and implementation details. Group the new documentation with other DMA-related documentation. Signed-off-by: Michael Kelley <mhklinux@outlook.com> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Reviewed-by: Petr Tesarik <petr@tesarici.cz> Signed-off-by: Christoph Hellwig <hch@lst.de>
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.