| .. 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. |
