91 lines
3.2 KiB
ReStructuredText
91 lines
3.2 KiB
ReStructuredText
|
.. SPDX-License-Identifier: GPL-2.0-only
|
||
|
|
|
||
|
|
Kernel driver peci-cputemp
|
||
|
|
==========================
|
||
|
|
|
||
|
|
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 Digital
|
||
|
|
Thermal Sensor (DTS) thermal readings of the CPU package and CPU cores 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
|
||
|
|
-------------------
|
||
|
|
|
||
|
|
======================= =======================================================
|
||
|
|
temp1_label "Die"
|
||
|
|
temp1_input Provides current die temperature of the CPU package.
|
||
|
|
temp1_max Provides thermal control temperature of the CPU package
|
||
|
|
which is also known as Tcontrol.
|
||
|
|
temp1_crit Provides shutdown temperature of the CPU package which
|
||
|
|
is also known as the maximum processor junction
|
||
|
|
temperature, Tjmax or Tprochot.
|
||
|
|
temp1_crit_hyst Provides the hysteresis value from Tcontrol to Tjmax of
|
||
|
|
the CPU package.
|
||
|
|
|
||
|
|
temp2_label "DTS"
|
||
|
|
temp2_input Provides current temperature of the CPU package scaled
|
||
|
|
to match DTS thermal profile.
|
||
|
|
temp2_max Provides thermal control temperature of the CPU package
|
||
|
|
which is also known as Tcontrol.
|
||
|
|
temp2_crit Provides shutdown temperature of the CPU package which
|
||
|
|
is also known as the maximum processor junction
|
||
|
|
temperature, Tjmax or Tprochot.
|
||
|
|
temp2_crit_hyst Provides the hysteresis value from Tcontrol to Tjmax of
|
||
|
|
the CPU package.
|
||
|
|
|
||
|
|
temp3_label "Tcontrol"
|
||
|
|
temp3_input Provides current Tcontrol temperature of the CPU
|
||
|
|
package which is also known as Fan Temperature target.
|
||
|
|
Indicates the relative value from thermal monitor trip
|
||
|
|
temperature at which fans should be engaged.
|
||
|
|
temp3_crit Provides Tcontrol critical value of the CPU package
|
||
|
|
which is same to Tjmax.
|
||
|
|
|
||
|
|
temp4_label "Tthrottle"
|
||
|
|
temp4_input Provides current Tthrottle temperature of the CPU
|
||
|
|
package. Used for throttling temperature. If this value
|
||
|
|
is allowed and lower than Tjmax - the throttle will
|
||
|
|
occur and reported at lower than Tjmax.
|
||
|
|
|
||
|
|
temp5_label "Tjmax"
|
||
|
|
temp5_input Provides the maximum junction temperature, Tjmax of the
|
||
|
|
CPU package.
|
||
|
|
|
||
|
|
temp[6-N]_label Provides string "Core X", where X is resolved core
|
||
|
|
number.
|
||
|
|
temp[6-N]_input Provides current temperature of each core.
|
||
|
|
|
||
|
|
======================= =======================================================
|