AMDTEMP(4)

NAME
amdtemp - device driver for AMD K8, K10 and K11 on-die digital thermal sensor

SYNOPSIS
To compile this driver into the kernel, place the following line in your kernel configuration file:

device amdtemp

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

    amdtemp_load="YES"

DESCRIPTION
The amdtemp driver provides support for the on-die digital thermal sensor present in AMD K8, K10 and K11 processors.

For the K8 family, the amdtemp driver reports each core's temperature through a sysctl node in the corresponding CPU devices's sysctl tree, named dev.amdtemp.%d.sensor{0,1}.core{0,1}. The driver also creates dev.cpu.%d.temperature displaying the maximum temperature of the two sensors located in each CPU core.

For the K10 and K11 families, the driver creates dev.cpu.%d.temperature with the temperature of each core.

SEE ALSO
sysctl(8)

HISTORY
The amdtemp driver first appeared in FreeBSD 7.1.

AUTHORS
Rui Paulo <rpaulo@FreeBSD.org> Norikatsu Shigemura <nork@FreeBSD.org>

BUGS
AMD K9 is not supported because temperature reporting has been replaced by Maltese.