Commit 6523d3b2 authored by Iwona Winiarska's avatar Iwona Winiarska Committed by Greg Kroah-Hartman
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peci: Add core infrastructure 



Intel processors provide access for various services designed to support
processor and DRAM thermal management, platform manageability and
processor interface tuning and diagnostics.
Those services are available via the Platform Environment Control
Interface (PECI) that provides a communication channel between the
processor and the Baseboard Management Controller (BMC) or other
platform management device.

This change introduces PECI subsystem by adding the initial core module
and API for controller drivers.

Co-developed-by: default avatarJason M Bills <jason.m.bills@linux.intel.com>
Co-developed-by: default avatarJae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: default avatarJoel Stanley <joel@jms.id.au>
Signed-off-by: default avatarJason M Bills <jason.m.bills@linux.intel.com>
Signed-off-by: default avatarJae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Signed-off-by: default avatarIwona Winiarska <iwona.winiarska@intel.com>
Link: https://lore.kernel.org/r/20220208153639.255278-5-iwona.winiarska@intel.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent ac2743a7

MAINTAINERS

+8 −0
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@@ -15096,6 +15096,14 @@ L: platform-driver-x86@vger.kernel.org 
S:	Maintained

F:	drivers/platform/x86/peaq-wmi.c









PECI SUBSYSTEM









M:	Iwona Winiarska <iwona.winiarska@intel.com>









L:	openbmc@lists.ozlabs.org (moderated for non-subscribers)









S:	Supported









F:	Documentation/devicetree/bindings/peci/









F:	drivers/peci/









F:	include/linux/peci.h

















PENSANDO ETHERNET DRIVERS









M:	Shannon Nelson <snelson@pensando.io>









M:	drivers@pensando.io
































drivers/Kconfig



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@@ -236,4 +236,7 @@ source "drivers/interconnect/Kconfig"







source "drivers/counter/Kconfig"



















source "drivers/most/Kconfig"



















source "drivers/peci/Kconfig"



















endmenu
























drivers/Makefile



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@@ -187,3 +187,4 @@ obj-$(CONFIG_GNSS)		+= gnss/







obj-$(CONFIG_INTERCONNECT)	+= interconnect/









obj-$(CONFIG_COUNTER)		+= counter/









obj-$(CONFIG_MOST)		+= most/









obj-$(CONFIG_PECI)		+= peci/
























drivers/peci/Kconfig
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# SPDX-License-Identifier: GPL-2.0-only



















menuconfig PECI









	tristate "PECI support"









	help









	  The Platform Environment Control Interface (PECI) is an interface









	  that provides a communication channel to Intel processors and









	  chipset components from external monitoring or control devices.



















	  If you are building a Baseboard Management Controller (BMC) kernel









	  for Intel platform say Y here and also to the specific driver for









	  your adapter(s) below. If unsure say N.



















	  This support is also available as a module. If so, the module









	  will be called peci.
























drivers/peci/Makefile
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# SPDX-License-Identifier: GPL-2.0-only



















# Core functionality









peci-y := core.o









obj-$(CONFIG_PECI) += peci.o