Vinayak Menon
765e7b83f6
DMA_ATTR_STRONGLY_ORDERED and DMA_ATTR_NO_KERNEL_MAPPING alters the logical mapping of allocated memory. This works only for CMA allocations where the pages are PAGE_SIZE mapped. Disallow fallback to buddy alloc if above attrs are set. Change-Id: I25c632d3c9179e22bc5061fd5f7e9ab6e7847322 Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
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.