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| author | Kristen Carlson Accardi <kristen@linux.intel.com> | 2015-01-29 00:03:27 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-01-30 01:52:17 +0100 |
| commit | d01b1f48c5fd95901203bd830458eaf619ed6c47 (patch) | |
| tree | df29b42bb4495db5a24940b7a05c9cf888fb2150 /Documentation/cpu-freq | |
| parent | intel_pstate: Add support for SkyLake (diff) | |
| download | linux-d01b1f48c5fd95901203bd830458eaf619ed6c47.tar.xz linux-d01b1f48c5fd95901203bd830458eaf619ed6c47.zip | |
intel_pstate: expose turbo range to sysfs
This patch adds "turbo_pct" to the intel_pstate sysfs interface.
turbo_pct will display the percentage of the total supported
pstates that are in the turbo range. This value is independent
of whether turbo has been disabled or not.
Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'Documentation/cpu-freq')
| -rw-r--r-- | Documentation/cpu-freq/intel-pstate.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/cpu-freq/intel-pstate.txt b/Documentation/cpu-freq/intel-pstate.txt index 765d7fc0e692..7767ce6756be 100644 --- a/Documentation/cpu-freq/intel-pstate.txt +++ b/Documentation/cpu-freq/intel-pstate.txt @@ -37,6 +37,10 @@ controlling P state selection. These files have been added to no_turbo: limits the driver to selecting P states below the turbo frequency range. + turbo_pct: displays the percentage of the total performance that + is supported by hardware that is in the turbo range. This number + is independent of whether turbo has been disabled or not. + For contemporary Intel processors, the frequency is controlled by the processor itself and the P-states exposed to software are related to performance levels. The idea that frequency can be set to a single |