From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751824AbbHPDvO (ORCPT ); Sat, 15 Aug 2015 23:51:14 -0400 Received: from mail-pa0-f48.google.com ([209.85.220.48]:34352 "EHLO mail-pa0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751086AbbHPDvN convert rfc822-to-8bit (ORCPT ); Sat, 15 Aug 2015 23:51:13 -0400 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT To: Peter Zijlstra , "Morten Rasmussen" From: Michael Turquette In-Reply-To: <20150815124817.GH10304@worktop.programming.kicks-ass.net> Cc: mingo@redhat.com, vincent.guittot@linaro.org, daniel.lezcano@linaro.org, "Dietmar Eggemann" , yuyang.du@intel.com, rjw@rjwysocki.net, "Juri Lelli" , sgurrappadi@nvidia.com, pang.xunlei@zte.com.cn, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org References: <1436293469-25707-1-git-send-email-morten.rasmussen@arm.com> <1436293469-25707-42-git-send-email-morten.rasmussen@arm.com> <20150815124817.GH10304@worktop.programming.kicks-ass.net> Message-ID: <20150816035056.31346.59624@quantum> User-Agent: alot/0.3.5 Subject: Re: [RFCv5 PATCH 41/46] sched/fair: add triggers for OPP change requests Date: Sat, 15 Aug 2015 20:50:56 -0700 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Quoting Peter Zijlstra (2015-08-15 05:48:17) > > > So this OPP thing, I think that got mentioned once earlier in this patch > set, wth is that? OPP == OPerating Point == P-state In System-on-chip Land OPP is a very common term, roughly defined as a frequency & voltage pair that makes up a performance state. In other words, OPP is the P-state of the non-ACPI world. Similarly DVFS is sometimes confused as a brand new file system, but it is also a very standardized acronym amongst SoC vendors meaning frequency and voltage scaling. Regards, Mike > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/