| From 41629a8233470325bfbb60377f555f9e8acc879f Mon Sep 17 00:00:00 2001 |
| From: Dirk Brandewie <dirk.j.brandewie@intel.com> |
| Date: Fri, 20 Jun 2014 07:28:00 -0700 |
| Subject: intel_pstate: Update documentation of {max,min}_perf_pct sysfs files |
| |
| From: Dirk Brandewie <dirk.j.brandewie@intel.com> |
| |
| commit 41629a8233470325bfbb60377f555f9e8acc879f upstream. |
| |
| Update documentation to make the interpretation of the values clearer |
| |
| Link: https://bugzilla.kernel.org/show_bug.cgi?id=64251 |
| Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> |
| Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| Documentation/cpu-freq/intel-pstate.txt | 7 +++++-- |
| 1 file changed, 5 insertions(+), 2 deletions(-) |
| |
| --- a/Documentation/cpu-freq/intel-pstate.txt |
| +++ b/Documentation/cpu-freq/intel-pstate.txt |
| @@ -15,10 +15,13 @@ New sysfs files for controlling P state |
| /sys/devices/system/cpu/intel_pstate/ |
| |
| max_perf_pct: limits the maximum P state that will be requested by |
| - the driver stated as a percentage of the available performance. |
| + the driver stated as a percentage of the available performance. The |
| + available (P states) performance may be reduced by the no_turbo |
| + setting described below. |
| |
| min_perf_pct: limits the minimum P state that will be requested by |
| - the driver stated as a percentage of the available performance. |
| + the driver stated as a percentage of the max (non-turbo) |
| + performance level. |
| |
| no_turbo: limits the driver to selecting P states below the turbo |
| frequency range. |
