From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Turquette Subject: Re: [RFCv5 PATCH 41/46] sched/fair: add triggers for OPP change requests Date: Sat, 15 Aug 2015 20:50:56 -0700 Message-ID: <20150816035056.31346.59624@quantum> 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> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Return-path: In-Reply-To: <20150815124817.GH10304@worktop.programming.kicks-ass.net> Sender: linux-kernel-owner@vger.kernel.org To: Peter Zijlstra , Morten Rasmussen 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 List-Id: linux-pm@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/