This is a note to let you know that I've just added the patch titled
intel_pstate: Update documentation of {max,min}_perf_pct sysfs files
to the 3.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
intel_pstate-update-documentation-of-max-min-_perf_pct-sysfs-files.patch
and it can be found in the queue-3.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 41629a8233470325bfbb60377f555f9e8acc879f Mon Sep 17 00:00:00 2001
From: Dirk Brandewie <dirk.j.brandewie@xxxxxxxxx>
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@xxxxxxxxx>
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@xxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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.
Patches currently in stable-queue which might be from dirk.j.brandewie@xxxxxxxxx are
queue-3.15/intel_pstate-fix-setting-vid.patch
queue-3.15/intel_pstate-update-documentation-of-max-min-_perf_pct-sysfs-files.patch
queue-3.15/intel_pstate-don-t-touch-turbo-bit-if-turbo-disabled-or-unavailable.patch
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