0001 .. SPDX-License-Identifier: GPL-2.0
0002
0003 Kernel driver peci-dimmtemp
0004 ===========================
0005
0006 Supported chips:
0007 One of Intel server CPUs listed below which is connected to a PECI bus.
0008 * Intel Xeon E5/E7 v3 server processors
0009 Intel Xeon E5-14xx v3 family
0010 Intel Xeon E5-24xx v3 family
0011 Intel Xeon E5-16xx v3 family
0012 Intel Xeon E5-26xx v3 family
0013 Intel Xeon E5-46xx v3 family
0014 Intel Xeon E7-48xx v3 family
0015 Intel Xeon E7-88xx v3 family
0016 * Intel Xeon E5/E7 v4 server processors
0017 Intel Xeon E5-16xx v4 family
0018 Intel Xeon E5-26xx v4 family
0019 Intel Xeon E5-46xx v4 family
0020 Intel Xeon E7-48xx v4 family
0021 Intel Xeon E7-88xx v4 family
0022 * Intel Xeon Scalable server processors
0023 Intel Xeon D family
0024 Intel Xeon Bronze family
0025 Intel Xeon Silver family
0026 Intel Xeon Gold family
0027 Intel Xeon Platinum family
0028
0029 Datasheet: Available from http://www.intel.com/design/literature.htm
0030
0031 Author: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
0032
0033 Description
0034 -----------
0035
0036 This driver implements a generic PECI hwmon feature which provides
0037 Temperature sensor on DIMM readings that are accessible via the processor PECI interface.
0038
0039 All temperature values are given in millidegree Celsius and will be measurable
0040 only when the target CPU is powered on.
0041
0042 Sysfs interface
0043 -------------------
0044
0045 ======================= =======================================================
0046
0047 temp[N]_label Provides string "DIMM CI", where C is DIMM channel and
0048 I is DIMM index of the populated DIMM.
0049 temp[N]_input Provides current temperature of the populated DIMM.
0050 temp[N]_max Provides thermal control temperature of the DIMM.
0051 temp[N]_crit Provides shutdown temperature of the DIMM.
0052
0053 ======================= =======================================================
0054
0055 Note:
0056 DIMM temperature attributes will appear when the client CPU's BIOS
0057 completes memory training and testing.
