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3c57e89b CL |
1 | Kernel driver k10temp |
2 | ===================== | |
3 | ||
4 | Supported chips: | |
f8e8cfda | 5 | |
3c57e89b | 6 | * AMD Family 10h processors: |
f8e8cfda | 7 | |
c5114a1c | 8 | Socket F: Quad-Core/Six-Core/Embedded Opteron (but see below) |
f8e8cfda | 9 | |
c5114a1c | 10 | Socket AM2+: Quad-Core Opteron, Phenom (II) X3/X4, Athlon X2 (but see below) |
f8e8cfda | 11 | |
3c57e89b | 12 | Socket AM3: Quad-Core Opteron, Athlon/Phenom II X2/X3/X4, Sempron II |
f8e8cfda | 13 | |
3c57e89b | 14 | Socket S1G3: Athlon II, Sempron, Turion II |
f8e8cfda | 15 | |
3c57e89b | 16 | * AMD Family 11h processors: |
f8e8cfda | 17 | |
3c57e89b | 18 | Socket S1G2: Athlon (X2), Sempron (X2), Turion X2 (Ultra) |
f8e8cfda | 19 | |
af75d5b7 | 20 | * AMD Family 12h processors: "Llano" (E2/A4/A6/A8-Series) |
f8e8cfda | 21 | |
af75d5b7 | 22 | * AMD Family 14h processors: "Brazos" (C/E/G/Z-Series) |
f8e8cfda | 23 | |
f89ce270 | 24 | * AMD Family 15h processors: "Bulldozer" (FX-Series), "Trinity", "Kaveri", "Carrizo" |
f8e8cfda | 25 | |
ec015950 | 26 | * AMD Family 16h processors: "Kabini", "Mullins" |
3c57e89b CL |
27 | |
28 | Prefix: 'k10temp' | |
f8e8cfda | 29 | |
3c57e89b | 30 | Addresses scanned: PCI space |
f8e8cfda | 31 | |
3c57e89b | 32 | Datasheets: |
f8e8cfda | 33 | |
3c57e89b | 34 | BIOS and Kernel Developer's Guide (BKDG) For AMD Family 10h Processors: |
f8e8cfda | 35 | |
3c57e89b | 36 | http://support.amd.com/us/Processor_TechDocs/31116.pdf |
f8e8cfda | 37 | |
3c57e89b | 38 | BIOS and Kernel Developer's Guide (BKDG) for AMD Family 11h Processors: |
f8e8cfda | 39 | |
3c57e89b | 40 | http://support.amd.com/us/Processor_TechDocs/41256.pdf |
f8e8cfda | 41 | |
af75d5b7 | 42 | BIOS and Kernel Developer's Guide (BKDG) for AMD Family 12h Processors: |
f8e8cfda | 43 | |
af75d5b7 | 44 | http://support.amd.com/us/Processor_TechDocs/41131.pdf |
f8e8cfda | 45 | |
aa4790a6 | 46 | BIOS and Kernel Developer's Guide (BKDG) for AMD Family 14h Models 00h-0Fh Processors: |
f8e8cfda | 47 | |
aa4790a6 | 48 | http://support.amd.com/us/Processor_TechDocs/43170.pdf |
f8e8cfda | 49 | |
3c57e89b | 50 | Revision Guide for AMD Family 10h Processors: |
f8e8cfda | 51 | |
3c57e89b | 52 | http://support.amd.com/us/Processor_TechDocs/41322.pdf |
f8e8cfda | 53 | |
3c57e89b | 54 | Revision Guide for AMD Family 11h Processors: |
f8e8cfda | 55 | |
3c57e89b | 56 | http://support.amd.com/us/Processor_TechDocs/41788.pdf |
f8e8cfda | 57 | |
af75d5b7 | 58 | Revision Guide for AMD Family 12h Processors: |
f8e8cfda | 59 | |
af75d5b7 | 60 | http://support.amd.com/us/Processor_TechDocs/44739.pdf |
f8e8cfda | 61 | |
aa4790a6 | 62 | Revision Guide for AMD Family 14h Models 00h-0Fh Processors: |
f8e8cfda | 63 | |
aa4790a6 | 64 | http://support.amd.com/us/Processor_TechDocs/47534.pdf |
f8e8cfda | 65 | |
3c57e89b | 66 | AMD Family 11h Processor Power and Thermal Data Sheet for Notebooks: |
f8e8cfda | 67 | |
3c57e89b | 68 | http://support.amd.com/us/Processor_TechDocs/43373.pdf |
f8e8cfda | 69 | |
3c57e89b | 70 | AMD Family 10h Server and Workstation Processor Power and Thermal Data Sheet: |
f8e8cfda | 71 | |
3c57e89b | 72 | http://support.amd.com/us/Processor_TechDocs/43374.pdf |
f8e8cfda | 73 | |
3c57e89b | 74 | AMD Family 10h Desktop Processor Power and Thermal Data Sheet: |
f8e8cfda | 75 | |
3c57e89b CL |
76 | http://support.amd.com/us/Processor_TechDocs/43375.pdf |
77 | ||
78 | Author: Clemens Ladisch <clemens@ladisch.de> | |
79 | ||
80 | Description | |
81 | ----------- | |
82 | ||
83 | This driver permits reading of the internal temperature sensor of AMD | |
ec015950 | 84 | Family 10h/11h/12h/14h/15h/16h processors. |
3c57e89b | 85 | |
c5114a1c CL |
86 | All these processors have a sensor, but on those for Socket F or AM2+, |
87 | the sensor may return inconsistent values (erratum 319). The driver | |
88 | will refuse to load on these revisions unless you specify the "force=1" | |
89 | module parameter. | |
90 | ||
91 | Due to technical reasons, the driver can detect only the mainboard's | |
92 | socket type, not the processor's actual capabilities. Therefore, if you | |
93 | are using an AM3 processor on an AM2+ mainboard, you can safely use the | |
94 | "force=1" parameter. | |
3c57e89b CL |
95 | |
96 | There is one temperature measurement value, available as temp1_input in | |
97 | sysfs. It is measured in degrees Celsius with a resolution of 1/8th degree. | |
f8e8cfda | 98 | Please note that it is defined as a relative value; to quote the AMD manual:: |
3c57e89b CL |
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 | ||
108 | The maximum value for Tctl is available in the file temp1_max. | |
109 | ||
110 | If the BIOS has enabled hardware temperature control, the threshold at | |
111 | which the processor will throttle itself to avoid damage is available in | |
112 | temp1_crit and temp1_crit_hyst. |