.. SPDX-License-Identifier: GPL-2.0
Kernel driver peci-dimmtemp
===========================
Supported chips:
One of Intel server CPUs listed below which is connected to a PECI bus.
* Intel Xeon E5/E7 v3 server processors
Intel Xeon E5-14xx v3 family
Intel Xeon E5-24xx v3 family
Intel Xeon E5-16xx v3 family
Intel Xeon E5-26xx v3 family
Intel Xeon E5-46xx v3 family
Intel Xeon E7-48xx v3 family
Intel Xeon E7-88xx v3 family
* Intel Xeon E5/E7 v4 server processors
Intel Xeon E5-16xx v4 family
Intel Xeon E5-26xx v4 family
Intel Xeon E5-46xx v4 family
Intel Xeon E7-48xx v4 family
Intel Xeon E7-88xx v4 family
* Intel Xeon Scalable server processors
Intel Xeon D family
Intel Xeon Bronze family
Intel Xeon Silver family
Intel Xeon Gold family
Intel Xeon Platinum family
Datasheet: Available from
http://www.intel.com/design/literature.htm
Author: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Description
-----------
This driver implements a generic PECI hwmon feature which provides
Temperature sensor on DIMM readings that are accessible via the processor PECI interface.
All temperature values are given in millidegree Celsius and will be measurable
only when the target CPU is powered on.
Sysfs interface
-------------------
======================= =======================================================
temp[N]_label Provides string "DIMM CI", where C is DIMM channel and
I is DIMM index of the populated DIMM.
temp[N]_input Provides current temperature of the populated DIMM.
temp[N]_max Provides thermal control temperature of the DIMM.
temp[N]_crit Provides shutdown temperature of the DIMM.
======================= =======================================================
Note:
DIMM temperature attributes will appear when the client CPU's BIOS
completes memory training and testing.
