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See Chapter 36 "RKNN" from the RK3588 TRM (Part 1). The IP is divided in three cores, programmed independently. The first core though is special, being able to delegate work to the other cores. The IOMMU of the first core is also special in that it has two subunits (read/write?) that need to be programmed in sync. v2: - Have one device for each NPU core (Sebastian Reichel) - Have one device for each IOMMU (Sebastian Reichel) - Correctly sort nodes (Diederik de Haas) - Add rockchip,iommu compatible to IOMMU nodes (Sebastian Reichel) v3: - Adapt to a split of the register block in the DT bindings (Nicolas Frattaroli) v4: - Adapt to changes in bindings v6: - pclk and npu clocks are needed by all clocks (Rob Herring) v8: - Remove notion of top core (Robin Murphy) Tested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Tomeu Vizoso <tomeu@tomeuvizoso.net> Link: https://lore.kernel.org/r/20250721-6-10-rocket-v9-8-77ebd484941e@tomeuvizoso.net Signed-off-by: Heiko Stuebner <heiko@sntech.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 reStructuredText 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.