1.. SPDX-License-Identifier: GPL-2.0
2
3Kernel driver peci-dimmtemp
4===========================
5
6Supported chips:
7	One of Intel server CPUs listed below which is connected to a PECI bus.
8		* Intel Xeon E5/E7 v3 server processors
9			Intel Xeon E5-14xx v3 family
10			Intel Xeon E5-24xx v3 family
11			Intel Xeon E5-16xx v3 family
12			Intel Xeon E5-26xx v3 family
13			Intel Xeon E5-46xx v3 family
14			Intel Xeon E7-48xx v3 family
15			Intel Xeon E7-88xx v3 family
16		* Intel Xeon E5/E7 v4 server processors
17			Intel Xeon E5-16xx v4 family
18			Intel Xeon E5-26xx v4 family
19			Intel Xeon E5-46xx v4 family
20			Intel Xeon E7-48xx v4 family
21			Intel Xeon E7-88xx v4 family
22		* Intel Xeon Scalable server processors
23			Intel Xeon D family
24			Intel Xeon Bronze family
25			Intel Xeon Silver family
26			Intel Xeon Gold family
27			Intel Xeon Platinum family
28
29	Datasheet: Available from http://www.intel.com/design/literature.htm
30
31Author: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
32
33Description
34-----------
35
36This driver implements a generic PECI hwmon feature which provides
37Temperature sensor on DIMM readings that are accessible via the processor PECI interface.
38
39All temperature values are given in millidegree Celsius and will be measurable
40only when the target CPU is powered on.
41
42Sysfs interface
43-------------------
44
45======================= =======================================================
46
47temp[N]_label		Provides string "DIMM CI", where C is DIMM channel and
48			I is DIMM index of the populated DIMM.
49temp[N]_input		Provides current temperature of the populated DIMM.
50temp[N]_max		Provides thermal control temperature of the DIMM.
51temp[N]_crit		Provides shutdown temperature of the DIMM.
52
53======================= =======================================================
54
55Note:
56	DIMM temperature attributes will appear when the client CPU's BIOS
57	completes memory training and testing.
58