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Diffstat (limited to 'Documentation/hwmon/k8temp')
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diff --git a/Documentation/hwmon/k8temp b/Documentation/hwmon/k8temp deleted file mode 100644 index 72da12aa17e5..000000000000 --- a/Documentation/hwmon/k8temp +++ /dev/null @@ -1,62 +0,0 @@ -Kernel driver k8temp -==================== - -Supported chips: - - * AMD Athlon64/FX or Opteron CPUs - - Prefix: 'k8temp' - - Addresses scanned: PCI space - - Datasheet: http://support.amd.com/us/Processor_TechDocs/32559.pdf - -Author: Rudolf Marek - -Contact: Rudolf Marek <r.marek@assembler.cz> - -Description ------------ - -This driver permits reading temperature sensor(s) embedded inside AMD K8 -family CPUs (Athlon64/FX, Opteron). Official documentation says that it works -from revision F of K8 core, but in fact it seems to be implemented for all -revisions of K8 except the first two revisions (SH-B0 and SH-B3). - -Please note that you will need at least lm-sensors 2.10.1 for proper userspace -support. - -There can be up to four temperature sensors inside single CPU. The driver -will auto-detect the sensors and will display only temperatures from -implemented sensors. - -Mapping of /sys files is as follows: - -============= =================================== -temp1_input temperature of Core 0 and "place" 0 -temp2_input temperature of Core 0 and "place" 1 -temp3_input temperature of Core 1 and "place" 0 -temp4_input temperature of Core 1 and "place" 1 -============= =================================== - -Temperatures are measured in degrees Celsius and measurement resolution is -1 degree C. It is expected that future CPU will have better resolution. The -temperature is updated once a second. Valid temperatures are from -49 to -206 degrees C. - -Temperature known as TCaseMax was specified for processors up to revision E. -This temperature is defined as temperature between heat-spreader and CPU -case, so the internal CPU temperature supplied by this driver can be higher. -There is no easy way how to measure the temperature which will correlate -with TCaseMax temperature. - -For newer revisions of CPU (rev F, socket AM2) there is a mathematically -computed temperature called TControl, which must be lower than TControlMax. - -The relationship is following: - - temp1_input - TjOffset*2 < TControlMax, - -TjOffset is not yet exported by the driver, TControlMax is usually -70 degrees C. The rule of the thumb -> CPU temperature should not cross -60 degrees C too much. |