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IdleMask is the metric used by the PM firmware to know the status of each of the Hardware IP blocks monitored by the PM firmware. Knowing this value is key to get the information of s2idle suspend/resume status. This value is mapped to PMC scratch registers, retrieve them accordingly based on the CPU family and the underlying firmware support. Co-developed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Signed-off-by: Sanket Goswami <Sanket.Goswami@amd.com> Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://lore.kernel.org/r/20210916124002.2529-1-Sanket.Goswami@amd.com Reviewed-by: Hans de Goede <hdegoede@redhat.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.