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At the moment NPU IOMMU is manipulated directly from the IODA2 PCI PE code; PCI PE acts as a master to NPU PE. Soon we will have compound IOMMU groups with several PEs from several different PHB (such as interconnected GPUs and NPUs) so there will be no single master but a one big IOMMU group. This makes a first step and converts an NPU PE with a set of extern function to a table group. This should cause no behavioral change. Note that pnv_npu_release_ownership() has never been implemented. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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.