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The new generation of CPUs have granular control at a cluster level. Each package/die can have multiple power domains, which further can have multiple fabric clusters. The TPMI interface allows control at fabric cluster level. Use the updated uncore sysfs feature to expose controls at cluster level. At each cluster level there is a control for maximum and minimum uncore frequency. Also present current uncore frequency at a cluster level. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reviewed-by: Zhang Rui <rui.zhang@intel.com> Tested-by: Wendy Wang <wendy.wang@intel.com> Link: https://lore.kernel.org/r/20230418171340.681662-4-srinivas.pandruvada@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.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.