Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754574Ab3H3Gsd (ORCPT ); Fri, 30 Aug 2013 02:48:33 -0400 Received: from mail-lb0-f174.google.com ([209.85.217.174]:62533 "EHLO mail-lb0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753340Ab3H3Gsa (ORCPT ); Fri, 30 Aug 2013 02:48:30 -0400 MIME-Version: 1.0 In-Reply-To: References: Date: Fri, 30 Aug 2013 15:48:28 +0900 Message-ID: Subject: Re: [Query] CPUFreq: Does these machines have separate clock domains for CPUs? From: Magnus Damm To: Viresh Kumar Cc: "linux-pm@vger.kernel.org" , "cpufreq@vger.kernel.org" , Linux Kernel Mailing List , "linux-arm-kernel@lists.infradead.org" , Jesper Nilsson , Eric Miao , linux-cris-kernel@axis.com, SH-Linux , Benjamin Herrenschmidt , Miao Steven , Sekhar Nori , Mikael Starvik , Paul Mundt , sparclinux@vger.kernel.org, Dave Jones , David Miller , John Crispin Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1024 Lines: 36 Hi Viresh, On Thu, Aug 29, 2013 at 7:15 PM, Viresh Kumar wrote: > Hi, > > I have been doing some CPUFreq cleanup work and > wanted to know if the below mentioned machines have separate > clock domains for their CPUs or all share the same domain? > > So, that we can use some generic routines for these drivers which > would eventually do: > > cpumask_setall(policy->cpus); > > And I wanted to make sure that this doesn't break them.. :) > > ...... > > The drivers are: ... > drivers/cpufreq/sh-cpufreq.c ... The above SH cpufreq driver seems to be written with SMP in mind, but I would say SMP is a very rare case for SH. So I believe it can be considered as UP-only at this point. If Paul disagrees I'm quite sure he will tell us. Cheers, / magnus -- 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/