diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-17 19:48:08 -0500 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-17 19:48:08 -0500 |
commit | e82b1dae2a8730c89e2a30c5c28562ef066f39d9 (patch) | |
tree | 4811b7fd81c45d6d9b35bbd0519f8bc232dde616 /Documentation | |
parent | fc6f0700d5cd54b5f8b30c4f0d93b06a6ba04b81 (diff) | |
parent | c46c0e9188685c0276b4c0adf9fb7e903937e35b (diff) |
Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (w83627hf) Fix for "No such device"
hwmon: (sht15) Off-by-one error in array index + incorrect constants
hwmon: Add driver for VIA CPU core temperature
hwmon: (smsc47m1) Enable device if needed
hwmon: (smsc47m1) Fail module loading on error
hwmon: (smsc47m1) Only request I/O ports we really use
hwmon: New driver for AMD Family 10h/11h CPUs
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/hwmon/k10temp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/Documentation/hwmon/k10temp b/Documentation/hwmon/k10temp new file mode 100644 index 000000000000..a7a18d453a51 --- /dev/null +++ b/Documentation/hwmon/k10temp | |||
@@ -0,0 +1,60 @@ | |||
1 | Kernel driver k10temp | ||
2 | ===================== | ||
3 | |||
4 | Supported chips: | ||
5 | * AMD Family 10h processors: | ||
6 | Socket F: Quad-Core/Six-Core/Embedded Opteron | ||
7 | Socket AM2+: Opteron, Phenom (II) X3/X4 | ||
8 | Socket AM3: Quad-Core Opteron, Athlon/Phenom II X2/X3/X4, Sempron II | ||
9 | Socket S1G3: Athlon II, Sempron, Turion II | ||
10 | * AMD Family 11h processors: | ||
11 | Socket S1G2: Athlon (X2), Sempron (X2), Turion X2 (Ultra) | ||
12 | |||
13 | Prefix: 'k10temp' | ||
14 | Addresses scanned: PCI space | ||
15 | Datasheets: | ||
16 | BIOS and Kernel Developer's Guide (BKDG) For AMD Family 10h Processors: | ||
17 | http://support.amd.com/us/Processor_TechDocs/31116.pdf | ||
18 | BIOS and Kernel Developer's Guide (BKDG) for AMD Family 11h Processors: | ||
19 | http://support.amd.com/us/Processor_TechDocs/41256.pdf | ||
20 | Revision Guide for AMD Family 10h Processors: | ||
21 | http://support.amd.com/us/Processor_TechDocs/41322.pdf | ||
22 | Revision Guide for AMD Family 11h Processors: | ||
23 | http://support.amd.com/us/Processor_TechDocs/41788.pdf | ||
24 | AMD Family 11h Processor Power and Thermal Data Sheet for Notebooks: | ||
25 | http://support.amd.com/us/Processor_TechDocs/43373.pdf | ||
26 | AMD Family 10h Server and Workstation Processor Power and Thermal Data Sheet: | ||
27 | http://support.amd.com/us/Processor_TechDocs/43374.pdf | ||
28 | AMD Family 10h Desktop Processor Power and Thermal Data Sheet: | ||
29 | http://support.amd.com/us/Processor_TechDocs/43375.pdf | ||
30 | |||
31 | Author: Clemens Ladisch <clemens@ladisch.de> | ||
32 | |||
33 | Description | ||
34 | ----------- | ||
35 | |||
36 | This driver permits reading of the internal temperature sensor of AMD | ||
37 | Family 10h and 11h processors. | ||
38 | |||
39 | All these processors have a sensor, but on older revisions of Family 10h | ||
40 | processors, the sensor may return inconsistent values (erratum 319). The | ||
41 | driver will refuse to load on these revisions unless you specify the | ||
42 | "force=1" module parameter. | ||
43 | |||
44 | There is one temperature measurement value, available as temp1_input in | ||
45 | sysfs. It is measured in degrees Celsius with a resolution of 1/8th degree. | ||
46 | Please note that it is defined as a relative value; to quote the AMD manual: | ||
47 | |||
48 | Tctl is the processor temperature control value, used by the platform to | ||
49 | control cooling systems. Tctl is a non-physical temperature on an | ||
50 | arbitrary scale measured in degrees. It does _not_ represent an actual | ||
51 | physical temperature like die or case temperature. Instead, it specifies | ||
52 | the processor temperature relative to the point at which the system must | ||
53 | supply the maximum cooling for the processor's specified maximum case | ||
54 | temperature and maximum thermal power dissipation. | ||
55 | |||
56 | The maximum value for Tctl is available in the file temp1_max. | ||
57 | |||
58 | If the BIOS has enabled hardware temperature control, the threshold at | ||
59 | which the processor will throttle itself to avoid damage is available in | ||
60 | temp1_crit and temp1_crit_hyst. | ||