Based on kernel version 3.9. Page generated on 2013-05-02 23:07 EST.
1 Kernel driver k10temp 2 ===================== 3 4 Supported chips: 5 * AMD Family 10h processors: 6 Socket F: Quad-Core/Six-Core/Embedded Opteron (but see below) 7 Socket AM2+: Quad-Core Opteron, Phenom (II) X3/X4, Athlon X2 (but see below) 8 Socket AM3: Quad-Core Opteron, Athlon/Phenom II X2/X3/X4, Sempron II 9 Socket S1G3: Athlon II, Sempron, Turion II 10 * AMD Family 11h processors: 11 Socket S1G2: Athlon (X2), Sempron (X2), Turion X2 (Ultra) 12 * AMD Family 12h processors: "Llano" (E2/A4/A6/A8-Series) 13 * AMD Family 14h processors: "Brazos" (C/E/G/Z-Series) 14 * AMD Family 15h processors: "Bulldozer" (FX-Series), "Trinity" 15 16 Prefix: 'k10temp' 17 Addresses scanned: PCI space 18 Datasheets: 19 BIOS and Kernel Developer's Guide (BKDG) For AMD Family 10h Processors: 20 http://support.amd.com/us/Processor_TechDocs/31116.pdf 21 BIOS and Kernel Developer's Guide (BKDG) for AMD Family 11h Processors: 22 http://support.amd.com/us/Processor_TechDocs/41256.pdf 23 BIOS and Kernel Developer's Guide (BKDG) for AMD Family 12h Processors: 24 http://support.amd.com/us/Processor_TechDocs/41131.pdf 25 BIOS and Kernel Developer's Guide (BKDG) for AMD Family 14h Models 00h-0Fh Processors: 26 http://support.amd.com/us/Processor_TechDocs/43170.pdf 27 Revision Guide for AMD Family 10h Processors: 28 http://support.amd.com/us/Processor_TechDocs/41322.pdf 29 Revision Guide for AMD Family 11h Processors: 30 http://support.amd.com/us/Processor_TechDocs/41788.pdf 31 Revision Guide for AMD Family 12h Processors: 32 http://support.amd.com/us/Processor_TechDocs/44739.pdf 33 Revision Guide for AMD Family 14h Models 00h-0Fh Processors: 34 http://support.amd.com/us/Processor_TechDocs/47534.pdf 35 AMD Family 11h Processor Power and Thermal Data Sheet for Notebooks: 36 http://support.amd.com/us/Processor_TechDocs/43373.pdf 37 AMD Family 10h Server and Workstation Processor Power and Thermal Data Sheet: 38 http://support.amd.com/us/Processor_TechDocs/43374.pdf 39 AMD Family 10h Desktop Processor Power and Thermal Data Sheet: 40 http://support.amd.com/us/Processor_TechDocs/43375.pdf 41 42 Author: Clemens Ladisch <email@example.com> 43 44 Description 45 ----------- 46 47 This driver permits reading of the internal temperature sensor of AMD 48 Family 10h/11h/12h/14h/15h processors. 49 50 All these processors have a sensor, but on those for Socket F or AM2+, 51 the sensor may return inconsistent values (erratum 319). The driver 52 will refuse to load on these revisions unless you specify the "force=1" 53 module parameter. 54 55 Due to technical reasons, the driver can detect only the mainboard's 56 socket type, not the processor's actual capabilities. Therefore, if you 57 are using an AM3 processor on an AM2+ mainboard, you can safely use the 58 "force=1" parameter. 59 60 There is one temperature measurement value, available as temp1_input in 61 sysfs. It is measured in degrees Celsius with a resolution of 1/8th degree. 62 Please note that it is defined as a relative value; to quote the AMD manual: 63 64 Tctl is the processor temperature control value, used by the platform to 65 control cooling systems. Tctl is a non-physical temperature on an 66 arbitrary scale measured in degrees. It does _not_ represent an actual 67 physical temperature like die or case temperature. Instead, it specifies 68 the processor temperature relative to the point at which the system must 69 supply the maximum cooling for the processor's specified maximum case 70 temperature and maximum thermal power dissipation. 71 72 The maximum value for Tctl is available in the file temp1_max. 73 74 If the BIOS has enabled hardware temperature control, the threshold at 75 which the processor will throttle itself to avoid damage is available in 76 temp1_crit and temp1_crit_hyst.