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7399139be6b21c7c59323a4fab56cc07cd254529
After the SMMU translation is disabled in the arm-smmu shutdown callback during reboot, if any subsystem are still alive then IOVAs they are using will become PAs on bus, which may lead to crash. So implemented shutdown callback, which detach iommu maps. Signed-off-by: Mansur Alisha Shaik <mansur@codeaurora.org> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@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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