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The GIC v3 specifications allow redistributors and ITSes interconnect ports used to access memory to be wired up in a way that makes the respective initiators/memory observers non-coherent. Add the standard dma-noncoherent property to the GICv3 bindings to allow firmware to describe the redistributors/ITSes components and interconnect ports behaviour in system designs where the redistributors and ITSes are not coherent with the CPU. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Cc: Rob Herring <robh@kernel.org> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20231006125929.48591-2-lpieralisi@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.