summaryrefslogtreecommitdiff
path: root/Documentation/hwmon/fam15h_power
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-25 16:52:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-25 16:52:50 -0700
commit0c63e38a129e7b1f625c6112439a4efc87b1635c (patch)
treebde880587c6a1da9eee2d44d3036b56e0d557f07 /Documentation/hwmon/fam15h_power
parent0798b1dbfbd9ff2a370c5968c5f0621ef0075fe0 (diff)
parentb0b349a85d3df00a40a8bd398e4a151fd8e91bbe (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: New driver for the SMSC EMC6W201 hwmon: (abituguru) Depend on DMI hwmon: (it87) Use request_muxed_region hwmon: (sch5627) Trigger Vbat measurements hwmon: (sch5627) Add sch5627_send_cmd function i8k: Integrate with the hwmon subsystem hwmon: (max6650) Properly support the MAX6650 hwmon: (max6650) Drop device detection Move ACPI power meter driver to hwmon hwmon: (f71882fg) Add support for F71808A hwmon: (f71882fg) Split has_beep in fan_has_beep and temp_has_beep hwmon: (asc7621) Drop duplicate dependency hwmon: (jc42) Change detection class hwmon: Add driver for AMD family 15h processor power information hwmon: (k10temp) Add support for Fam15h (Bulldozer) hwmon: Use helper functions to set and get driver data i8k: Avoid lahf in 64-bit code
Diffstat (limited to 'Documentation/hwmon/fam15h_power')
-rw-r--r--Documentation/hwmon/fam15h_power37
1 files changed, 37 insertions, 0 deletions
diff --git a/Documentation/hwmon/fam15h_power b/Documentation/hwmon/fam15h_power
new file mode 100644
index 00000000000..a92918e0bd6
--- /dev/null
+++ b/Documentation/hwmon/fam15h_power
@@ -0,0 +1,37 @@
+Kernel driver fam15h_power
+==========================
+
+Supported chips:
+* AMD Family 15h Processors
+
+ Prefix: 'fam15h_power'
+ Addresses scanned: PCI space
+ Datasheets:
+ BIOS and Kernel Developer's Guide (BKDG) For AMD Family 15h Processors
+ (not yet published)
+
+Author: Andreas Herrmann <andreas.herrmann3@amd.com>
+
+Description
+-----------
+
+This driver permits reading of registers providing power information
+of AMD Family 15h processors.
+
+For AMD Family 15h processors the following power values can be
+calculated using different processor northbridge function registers:
+
+* BasePwrWatts: Specifies in watts the maximum amount of power
+ consumed by the processor for NB and logic external to the core.
+* ProcessorPwrWatts: Specifies in watts the maximum amount of power
+ the processor can support.
+* CurrPwrWatts: Specifies in watts the current amount of power being
+ consumed by the processor.
+
+This driver provides ProcessorPwrWatts and CurrPwrWatts:
+* power1_crit (ProcessorPwrWatts)
+* power1_input (CurrPwrWatts)
+
+On multi-node processors the calculated value is for the entire
+package and not for a single node. Thus the driver creates sysfs
+attributes only for internal node0 of a multi-node processor.