Add a Documentation/ABI entry for
/sys/devices/system/cpu/intel_pstate/max_perf_pct,
/sys/devices/system/cpu/intel_pstate/min_perf_pct, and
/sys/devices/system/cpu/intel_pstate/no_turbo.
Cc: Dirk Brandewie <dirk.brande...@gmail.com>
Cc: Rafael J. Wysocki <r...@rjwysocki.net>
Cc: Randy Dunlap <rdun...@infradead.org>
Cc: Linux PM <linux...@vger.kernel.org>
Signed-off-by: Ramkumar Ramachandra <artag...@gmail.com>
---
Documentation/ABI/testing/sysfs-devices-system-cpu | 24 ++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu
b/Documentation/ABI/testing/sysfs-devices-system-cpu
index 468e4d4..d5a0d33 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -200,3 +200,27 @@ Description: address and size of the percpu note.
note of cpu#.
crash_notes_size: size of the note of cpu#.
+
+
+What: /sys/devices/system/cpu/intel_pstate/max_perf_pct
+ /sys/devices/system/cpu/intel_pstate/min_perf_pct
+ /sys/devices/system/cpu/intel_pstate/no_turbo
+Date: February 2013
+Contact: linux...@vger.kernel.org
+Description: Parameters for the Intel P-state driver
+
+ Logic for selecting the current P-state in Intel
+ Sandybridge+ processors. The three knobs control
+ limits for the P-state that will be requested by the
+ driver.
+
+ max_perf_pct: limits the maximum P state that will be requested
by
+ the driver stated as a percentage of the available performance.
+
+ min_perf_pct: limits the minimum P state that will be requested
by
+ the driver stated as a percentage of the available performance.
+
+ no_turbo: limits the driver to selecting P states below the
turbo
+ frequency range.
+
+ More details can be found in
Documentation/cpu-freq/intel-pstate.txt
--
1.8.5.2.227.g53f3478
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