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ACPI uses the CXL _OSC support method to communicate the available CXL functionality to FW. The CXL _OSC support method includes a field to indicate the OS is capable of RCD mode. FW can potentially change it's operation depending on the _OSC support method reported by the OS. The ACPI driver currently only sets the ACPI _OSC support method to indicate CXL VH mode. Change the capability reported to also include CXL RCD mode. [1] CXL3.0 Table 9-26 'Interpretation of CXL _OSC Support Field' Signed-off-by: Terry Bowman <terry.bowman@amd.com> [rrichter@amd.com: Reworded patch description.] Signed-off-by: Robert Richter <rrichter@amd.com> Link: http://lore.kernel.org/r/Y4cRV/Sj0epVW7bE@rric.localdomain Link: https://lore.kernel.org/r/166993046717.1882361.10587956243041624761.stgit@dwillia2-xfh.jf.intel.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.