| Kernel driver k10temp | |
| ===================== | |
| Supported chips: | |
| * AMD Family 10h processors: | |
| Socket F: Quad-Core/Six-Core/Embedded Opteron (but see below) | |
| Socket AM2+: Quad-Core Opteron, Phenom (II) X3/X4, Athlon X2 (but see below) | |
| Socket AM3: Quad-Core Opteron, Athlon/Phenom II X2/X3/X4, Sempron II | |
| Socket S1G3: Athlon II, Sempron, Turion II | |
| * AMD Family 11h processors: | |
| Socket S1G2: Athlon (X2), Sempron (X2), Turion X2 (Ultra) | |
| * AMD Family 12h processors: "Llano" (E2/A4/A6/A8-Series) | |
| * AMD Family 14h processors: "Brazos" (C/E/G/Z-Series) | |
| * AMD Family 15h processors: "Bulldozer" (FX-Series), "Trinity" | |
| * AMD Family 16h processors: "Kabini" | |
| Prefix: 'k10temp' | |
| Addresses scanned: PCI space | |
| Datasheets: | |
| BIOS and Kernel Developer's Guide (BKDG) For AMD Family 10h Processors: | |
| http://support.amd.com/us/Processor_TechDocs/31116.pdf | |
| BIOS and Kernel Developer's Guide (BKDG) for AMD Family 11h Processors: | |
| http://support.amd.com/us/Processor_TechDocs/41256.pdf | |
| BIOS and Kernel Developer's Guide (BKDG) for AMD Family 12h Processors: | |
| http://support.amd.com/us/Processor_TechDocs/41131.pdf | |
| BIOS and Kernel Developer's Guide (BKDG) for AMD Family 14h Models 00h-0Fh Processors: | |
| http://support.amd.com/us/Processor_TechDocs/43170.pdf | |
| Revision Guide for AMD Family 10h Processors: | |
| http://support.amd.com/us/Processor_TechDocs/41322.pdf | |
| Revision Guide for AMD Family 11h Processors: | |
| http://support.amd.com/us/Processor_TechDocs/41788.pdf | |
| Revision Guide for AMD Family 12h Processors: | |
| http://support.amd.com/us/Processor_TechDocs/44739.pdf | |
| Revision Guide for AMD Family 14h Models 00h-0Fh Processors: | |
| http://support.amd.com/us/Processor_TechDocs/47534.pdf | |
| AMD Family 11h Processor Power and Thermal Data Sheet for Notebooks: | |
| http://support.amd.com/us/Processor_TechDocs/43373.pdf | |
| AMD Family 10h Server and Workstation Processor Power and Thermal Data Sheet: | |
| http://support.amd.com/us/Processor_TechDocs/43374.pdf | |
| AMD Family 10h Desktop Processor Power and Thermal Data Sheet: | |
| http://support.amd.com/us/Processor_TechDocs/43375.pdf | |
| Author: Clemens Ladisch <clemens@ladisch.de> | |
| Description | |
| ----------- | |
| This driver permits reading of the internal temperature sensor of AMD | |
| Family 10h/11h/12h/14h/15h processors. | |
| All these processors have a sensor, but on those for Socket F or AM2+, | |
| the sensor may return inconsistent values (erratum 319). The driver | |
| will refuse to load on these revisions unless you specify the "force=1" | |
| module parameter. | |
| Due to technical reasons, the driver can detect only the mainboard's | |
| socket type, not the processor's actual capabilities. Therefore, if you | |
| are using an AM3 processor on an AM2+ mainboard, you can safely use the | |
| "force=1" parameter. | |
| There is one temperature measurement value, available as temp1_input in | |
| sysfs. It is measured in degrees Celsius with a resolution of 1/8th degree. | |
| Please note that it is defined as a relative value; to quote the AMD manual: | |
| Tctl is the processor temperature control value, used by the platform to | |
| control cooling systems. Tctl is a non-physical temperature on an | |
| arbitrary scale measured in degrees. 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. | |
| The maximum value for Tctl is available in the file temp1_max. | |
| If the BIOS has enabled hardware temperature control, the threshold at | |
| which the processor will throttle itself to avoid damage is available in | |
| temp1_crit and temp1_crit_hyst. |