platform/x86/intel/pmc: Retrieve LPM information using Intel PMT

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On supported platforms, the low power mode (LPM) requirements for entering
each idle substate are described in Platform Monitoring Technology (PMT)
telemetry entries. Provide a function for platform code to attempt to find
and read the requirements from the telemetry entries.

Signed-off-by: Xi Pardee <xi.pardee@intel.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20231129222132.2331261-18-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

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Xi Pardee 2023-11-29 14:21:29 -08:00 • committed by Hans de Goede

parent 0f601dec18

commit 4d621c3f02

2 changed files with 138 additions and 0 deletions

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3

drivers/platform/x86/intel/pmc/core.h

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135

drivers/platform/x86/intel/pmc/core_ssram.c

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