mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
fbc729a446
The on-chip northbridge's temperature sensor of the upcoming AMD Trinity CPUs works the same as for the previous CPUs. Since it has a different PCI-ID, we just add the new one to the list supported by k10temp. This allows to use the k10temp driver on those CPUs. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Cc: stable@vger.kernel.org # 3.0+ Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
77 lines
3.6 KiB
Plaintext
77 lines
3.6 KiB
Plaintext
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"
|
|
|
|
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.
|