From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753883AbaAFMyZ (ORCPT ); Mon, 6 Jan 2014 07:54:25 -0500 Received: from mail-pd0-f177.google.com ([209.85.192.177]:63396 "EHLO mail-pd0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751580AbaAFMyX (ORCPT ); Mon, 6 Jan 2014 07:54:23 -0500 From: Ramkumar Ramachandra To: LKML Cc: Dirk Brandewie , "Rafael J. Wysocki" , Randy Dunlap , Linux PM Subject: [PATCH v2] Documentation: add ABI entry for intel_pstate Date: Mon, 6 Jan 2014 18:24:26 +0530 Message-Id: <1389012866-29821-1-git-send-email-artagnon@gmail.com> X-Mailer: git-send-email 1.8.5.2.227.g53f3478 In-Reply-To: <1388997077-25138-1-git-send-email-artagnon@gmail.com> References: <1388997077-25138-1-git-send-email-artagnon@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Cc: Rafael J. Wysocki Cc: Randy Dunlap Cc: Linux PM Signed-off-by: Ramkumar Ramachandra --- 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-pm@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