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a12d521f4a
Apple SoCs such as the M1 come with a simple DMA address filter called SART. Unlike a real IOMMU no pagetables can be configured but instead DMA transactions can be allowed for up to 16 paddr regions. The consumer also needs special support since not all DMA allocations have to be added to this filter. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Sven Peter <sven@svenpeter.dev> |
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| kernel | ||
| lib | ||
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| .cocciconfig | ||
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| README | ||
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.