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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2012-09-17 20:25:24 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-09-17 20:25:24 +0200 |
| commit | 8592013bbd3858e9427ea2c5fb23a2c983b4dcaa (patch) | |
| tree | a03aaef6ccc3f5bb42d7da2d37f7f81ef3854d95 /Documentation | |
| parent | 00e8b2613331042bbe0177e5b9bb5c8a654b14ae (diff) | |
| parent | ed1511b80c92b1b1a8dde567adc090e470a4344a (diff) | |
Merge branch 'pm-cpuidle'
* pm-cpuidle:
ACPI / processor: remove pointless variable initialization
ACPI / processor: remove unused function parameter
cpuidle / ACPI : remove power from acpi_processor_cx structure
PM / cpuidle: Make ladder governor use the "disabled" state flag
Honor state disabling in the cpuidle ladder governor
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/cpuidle/sysfs.txt | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/cpuidle/sysfs.txt b/Documentation/cpuidle/sysfs.txt index 9d28a3406e7..b6f44f490ed 100644 --- a/Documentation/cpuidle/sysfs.txt +++ b/Documentation/cpuidle/sysfs.txt @@ -76,9 +76,17 @@ total 0 * desc : Small description about the idle state (string) -* disable : Option to disable this idle state (bool) +* disable : Option to disable this idle state (bool) -> see note below * latency : Latency to exit out of this idle state (in microseconds) * name : Name of the idle state (string) * power : Power consumed while in this idle state (in milliwatts) * time : Total time spent in this idle state (in microseconds) * usage : Number of times this state was entered (count) + +Note: +The behavior and the effect of the disable variable depends on the +implementation of a particular governor. In the ladder governor, for +example, it is not coherent, i.e. if one is disabling a light state, +then all deeper states are disabled as well, but the disable variable +does not reflect it. Likewise, if one enables a deep state but a lighter +state still is disabled, then this has no effect. |