9e6ea59f3ff37192fd7aec7821dca6ece629b7d0
Describe the memory related to page table walks as non-cacheable for iommu instances that are not DMA coherent. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> [will: Use cfg->coherent_walk, fix arm-v7s, ensure outer-shareable for NC] Signed-off-by: Will Deacon <will@kernel.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.
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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