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c9435dbee1
In an RCH topology a CXL host-bridge as Root Complex Integrated Endpoint the represents the memory expander. Unlike a VH topology there is no CXL/PCIE Root Port that host the endpoint. The CXL subsystem maps this as the CXL root object (ACPI0017 on ACPI based systems) targeting the host-bridge as a dport, per usual, but then that dport directly hosts the endpoint port. Mock up that configuration with a 4th host-bridge that has a 'cxl_rcd' device instance as its immediate child. Reviewed-by: Alison Schofield <alison.schofield@intel.com> Link: https://lore.kernel.org/r/166993046170.1882361.12460762475782283638.stgit@dwillia2-xfh.jf.intel.com Reviewed-by: Robert Richter <rrichter@amd.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Dan Williams <dan.j.williams@intel.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.