SMNTEMP(4D) 4D SMNTEMP(4D)

NAME


smntemp - AMD SMN Temperature Sensor Driver

SYNOPSIS


/dev/sensors/temperature/cpu/*

DESCRIPTION


The smntemp driver provides the system access to the temperature sensor
found in the AMD System Management Network (SMN) on AMD Family 17h (Zen,
Zen+, and Zen 2) processors.

From this, the driver exposes temperature sensors. On Family 17h systems,
temperature sensors exist for each Zeppelin die, of which there may be
multiple in a single package. This means that each sensor covers more than
one core.

Temperature information is available to the system via the fault management
architecture (FMA). The file system location and programming interface to
the smntemp driver are considered Volatile, subject to change without
notice, and should not be used directly. Raw temperature information can
be dumped through the FMA developer utility fmtopo.

SEE ALSO


amdnbtemp(4D), amdzen(4D), fmadm(8)

AMD, Open-Source Register Reference For AMD Family 17h Processors Models
00h-2Fh, July, 2018.

OmniOS September 1, 2020 OmniOS