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The MU block found in a number of Freescale/NXP SoCs supports generating IRQs by writing data to a register. This enables the MU block to be used as a MSI controller, by leveraging the platform-MSI API. Signed-off-by: Frank Li <Frank.Li@nxp.com> [maz: dropped pointless dma-iommu.h and of_pci.h includes] Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220922161246.20586-4-Frank.Li@nxp.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.