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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/Documentation/hwmon/k10temp
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
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+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", "Kaveri", "Carrizo"
+* AMD Family 16h processors: "Kabini", "Mullins"
+
+ 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/16h 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.