1Kernel driver k10temp 2===================== 3 4Supported chips: 5 6* AMD Family 10h processors: 7 8 Socket F: Quad-Core/Six-Core/Embedded Opteron (but see below) 9 10 Socket AM2+: Quad-Core Opteron, Phenom (II) X3/X4, Athlon X2 (but see below) 11 12 Socket AM3: Quad-Core Opteron, Athlon/Phenom II X2/X3/X4, Sempron II 13 14 Socket S1G3: Athlon II, Sempron, Turion II 15 16* AMD Family 11h processors: 17 18 Socket S1G2: Athlon (X2), Sempron (X2), Turion X2 (Ultra) 19 20* AMD Family 12h processors: "Llano" (E2/A4/A6/A8-Series) 21 22* AMD Family 14h processors: "Brazos" (C/E/G/Z-Series) 23 24* AMD Family 15h processors: "Bulldozer" (FX-Series), "Trinity", "Kaveri", "Carrizo" 25 26* AMD Family 16h processors: "Kabini", "Mullins" 27 28 Prefix: 'k10temp' 29 30 Addresses scanned: PCI space 31 32 Datasheets: 33 34 BIOS and Kernel Developer's Guide (BKDG) For AMD Family 10h Processors: 35 36 http://support.amd.com/us/Processor_TechDocs/31116.pdf 37 38 BIOS and Kernel Developer's Guide (BKDG) for AMD Family 11h Processors: 39 40 http://support.amd.com/us/Processor_TechDocs/41256.pdf 41 42 BIOS and Kernel Developer's Guide (BKDG) for AMD Family 12h Processors: 43 44 http://support.amd.com/us/Processor_TechDocs/41131.pdf 45 46 BIOS and Kernel Developer's Guide (BKDG) for AMD Family 14h Models 00h-0Fh Processors: 47 48 http://support.amd.com/us/Processor_TechDocs/43170.pdf 49 50 Revision Guide for AMD Family 10h Processors: 51 52 http://support.amd.com/us/Processor_TechDocs/41322.pdf 53 54 Revision Guide for AMD Family 11h Processors: 55 56 http://support.amd.com/us/Processor_TechDocs/41788.pdf 57 58 Revision Guide for AMD Family 12h Processors: 59 60 http://support.amd.com/us/Processor_TechDocs/44739.pdf 61 62 Revision Guide for AMD Family 14h Models 00h-0Fh Processors: 63 64 http://support.amd.com/us/Processor_TechDocs/47534.pdf 65 66 AMD Family 11h Processor Power and Thermal Data Sheet for Notebooks: 67 68 http://support.amd.com/us/Processor_TechDocs/43373.pdf 69 70 AMD Family 10h Server and Workstation Processor Power and Thermal Data Sheet: 71 72 http://support.amd.com/us/Processor_TechDocs/43374.pdf 73 74 AMD Family 10h Desktop Processor Power and Thermal Data Sheet: 75 76 http://support.amd.com/us/Processor_TechDocs/43375.pdf 77 78Author: Clemens Ladisch <clemens@ladisch.de> 79 80Description 81----------- 82 83This driver permits reading of the internal temperature sensor of AMD 84Family 10h/11h/12h/14h/15h/16h processors. 85 86All these processors have a sensor, but on those for Socket F or AM2+, 87the sensor may return inconsistent values (erratum 319). The driver 88will refuse to load on these revisions unless you specify the "force=1" 89module parameter. 90 91Due to technical reasons, the driver can detect only the mainboard's 92socket type, not the processor's actual capabilities. Therefore, if you 93are using an AM3 processor on an AM2+ mainboard, you can safely use the 94"force=1" parameter. 95 96There is one temperature measurement value, available as temp1_input in 97sysfs. It is measured in degrees Celsius with a resolution of 1/8th degree. 98Please note that it is defined as a relative value; to quote the AMD manual:: 99 100 Tctl is the processor temperature control value, used by the platform to 101 control cooling systems. Tctl is a non-physical temperature on an 102 arbitrary scale measured in degrees. It does _not_ represent an actual 103 physical temperature like die or case temperature. Instead, it specifies 104 the processor temperature relative to the point at which the system must 105 supply the maximum cooling for the processor's specified maximum case 106 temperature and maximum thermal power dissipation. 107 108The maximum value for Tctl is available in the file temp1_max. 109 110If the BIOS has enabled hardware temperature control, the threshold at 111which the processor will throttle itself to avoid damage is available in 112temp1_crit and temp1_crit_hyst. 113