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227014b33f
Add internal ops to be able to handle incoming variant v2. The goal is to keep the overall structure of the framework but to allow to add the evolution of this hardware block. The ops are global for a SoC because iommu domains are not attached to a specific devices if they are for a virtuel device like drm. Use a global variable shouldn't be since SoC usually doesn't embedded different versions of the iommu hardware block. If that happen one day a WARN_ON will be displayed at probe time. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20210604164441.798362-4-benjamin.gaignard@collabora.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
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.