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On Tegra234, engines that are programmed through Host1x channels can be attached to either the NISO0 or NISO1 SMMU. Because of that, when selecting a context device to use with an engine, we need to select one that is also attached to the same SMMU. Add a parameter to host1x_memory_context_alloc to specify which device we are allocating a context for, and use it to pick an appropriate context device. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> [treding@nvidia.com: update !IOMMU_API stub signature] Signed-off-by: Thierry Reding <treding@nvidia.com>
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.