Srinivas Pandruvada 0ab147bb84 platform/x86: ISST: Parse SST MMIO and update instance
SST registers are presented to OS in multi-layer structures starting
with a SST header showing version information freezing current
definition.

For details on SST terminology refer to
Documentation/admin-guide/pm/intel-speed-select.rst
under the kernel documentation

SST TPMI details are published in the following document:
https://github.com/intel/tpmi_power_management/blob/main/SST_TPMI_public_disclosure_FINAL.docx

SST MMIO structure layout follows:
SST-HEADER
	SST-CP Header
		SST-CP CONTROL
		SST-CP STATUS
		SST-CP CONFIG0
		SST-CP CONFIG1
		...
		...
	SST-PP Header
		SST-PP OFFSET_0
		SST-PP OFFSET_1
					SST_PP_0_INFO
					SST_PP_1_INFO
					SST_PP_2_INFO
					SST_PP_3_INFO
		SST-PP CONTROL
		SST-PP STATUS

Each register bank contains information to get to next lower level
information. This information is parsed and stored in the struct
tpmi_per_power_domain_info for each domain. This information is
used to process each SST requests.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: Pragya Tanwar <pragya.tanwar@intel.com>
Link: https://lore.kernel.org/r/20230308070642.1727167-4-srinivas.pandruvada@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-03-16 15:18:02 +01:00
2023-03-05 10:49:37 -08:00
2023-03-05 14:52:03 -08:00

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.
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