The following commit has been merged in the linux branch: commit c1fb5c475126b77b47ba762f5b48535cd0420d24 Author: Alex Chiang achiang@hp.com Date: Wed Oct 21 21:45:41 2009 -0600
Documentation: ABI: /sys/devices/system/cpu/cpuidle/
Document cpuidle sysfs attributes by reading code, Documentation/cpuidle/, and git logs.
Cc: Venki Pallipadi venkatesh.pallipadi@intel.com Cc: Len Brown lenb@kernel.org Signed-off-by: Alex Chiang achiang@hp.com Signed-off-by: Greg Kroah-Hartman gregkh@suse.de
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index 8cdda1c..968d8ba 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu @@ -101,6 +101,26 @@ Description: CPU topology files that describe a logical CPU's relationship See Documentation/cputopology.txt for more information.
+What: /sys/devices/system/cpu/cpuidle/current_driver + /sys/devices/system/cpu/cpuidle/current_governer_ro +Date: September 2007 +Contact: Linux kernel mailing list linux-kernel@vger.kernel.org +Description: Discover cpuidle policy and mechanism + + Various CPUs today support multiple idle levels that are + differentiated by varying exit latencies and power + consumption during idle. + + Idle policy (governor) is differentiated from idle mechanism + (driver) + + current_driver: displays current idle mechanism + + current_governor_ro: displays current idle policy + + See files in Documentation/cpuidle/ for more information. + + What: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X Date: August 2008 KernelVersion: 2.6.27