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amdtemp(4) [debian man page]

AMDTEMP(4)						   BSD Kernel Interfaces Manual 						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 cores' 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. BUGS
AMD K9 is not supported because temperature reporting has been replaced by Maltese. 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> BSD
April 8, 2008 BSD

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AMDTEMP(4)						   BSD Kernel Interfaces Manual 						AMDTEMP(4)

NAME
amdtemp -- device driver for AMD processor 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 Family 0Fh, 10h, 11h, 12h, 14h, and 15h processors. For Family 0Fh processors, the amdtemp driver reports each core's temperature through sysctl nodes, named dev.amdtemp.%d.core{0,1}.sensor{0,1}. The driver also creates dev.cpu.%d.temperature in the corresponding CPU device's sysctl tree, display- ing the maximum temperature of the two sensors located in each CPU core. For Family 10h, 11h, 12h, 14h, and 15h processors, the driver reports each package's temperature through a sysctl node, named dev.amdtemp.%d.core0.sensor0. The driver also creates dev.cpu.%d.temperature in the corresponding CPU device's sysctl tree, displaying the temperature of the shared sensor located in each CPU package. SYSCTL VARIABLES
The following variable is available as both sysctl(8) variable and loader(8) tunable: dev.amdtemp.%d.sensor_offset Add the given offset to the temperature of the sensor. Default is 0. SEE ALSO
loader(8), sysctl(8) HISTORY
The amdtemp driver first appeared in FreeBSD 7.1. AUTHORS
Rui Paulo <rpaulo@FreeBSD.org> Norikatsu Shigemura <nork@FreeBSD.org> Jung-uk Kim <jkim@FreeBSD.org> CAVEATS
For Family 10h and later processors, ``(the reported temperature) is a non-physical temperature measured on an arbitrary scale and it does not represent an actual physical temperature like die or case temperature. Instead, it specifies the processor temperature relative to the point at which the system must supply the maximum cooling for the processor's specified maximum case temperature and maximum thermal power dissipation'' according to BIOS and Kernel Developer's Guide (BKDG) for AMD Processors, http://developer.amd.com/documentation/guides/Pages/default.aspx. BSD
February 23, 2012 BSD
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