Commit | Line | Data |
---|---|---|
bdcfb955 JHY |
1 | .. SPDX-License-Identifier: GPL-2.0 |
2 | ||
3 | Kernel driver peci-dimmtemp | |
4 | =========================== | |
5 | ||
6 | Supported 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 | ||
31 | Author: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> | |
32 | ||
33 | Description | |
34 | ----------- | |
35 | ||
36 | This driver implements a generic PECI hwmon feature which provides | |
37 | Temperature sensor on DIMM readings that are accessible via the processor PECI interface. | |
38 | ||
39 | All temperature values are given in millidegree Celsius and will be measurable | |
40 | only when the target CPU is powered on. | |
41 | ||
42 | Sysfs interface | |
43 | ------------------- | |
44 | ||
45 | ======================= ======================================================= | |
46 | ||
47 | temp[N]_label Provides string "DIMM CI", where C is DIMM channel and | |
48 | I is DIMM index of the populated DIMM. | |
49 | temp[N]_input Provides current temperature of the populated DIMM. | |
50 | temp[N]_max Provides thermal control temperature of the DIMM. | |
51 | temp[N]_crit Provides shutdown temperature of the DIMM. | |
52 | ||
53 | ======================= ======================================================= | |
54 | ||
55 | Note: | |
56 | DIMM temperature attributes will appear when the client CPU's BIOS | |
57 | completes memory training and testing. |