From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [v7 PATCH 0/7]: cpuidle/x86/POWER: Cleanup idle power management code in x86, cleanup drivers/cpuidle/cpuidle.c and introduce cpuidle to POWER. Date: Tue, 06 Oct 2009 20:04:39 +0200 Message-ID: <1254852279.17055.2.camel@laptop> References: <20091006152421.GA7278@linux.vnet.ibm.com> <20091006163521.GA10425@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20091006163521.GA10425@linux.vnet.ibm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linuxppc-dev-bounces+glppd-linuxppc64-dev=m.gmane.org@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+glppd-linuxppc64-dev=m.gmane.org@lists.ozlabs.org To: arun@linux.vnet.ibm.com Cc: linux-arch@vger.kernel.org, Gautham R Shenoy , Venkatesh Pallipadi , linux-kernel@vger.kernel.org, Paul Mackerras , Ingo Molnar , linuxppc-dev@lists.ozlabs.org List-Id: linux-arch.vger.kernel.org On Tue, 2009-10-06 at 22:05 +0530, Arun R Bharadwaj wrote: > Also, the per-cpu nature of registration/unregistration of cpuidle > has been maintained as ACPI needs this. Right, so can't we ditch that and have acpi default to the lowest common C-state and warn when various cpus report different C-states? From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bombadil.infradead.org ([18.85.46.34]:60330 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756861AbZJFSIh (ORCPT ); Tue, 6 Oct 2009 14:08:37 -0400 Subject: Re: [v7 PATCH 0/7]: cpuidle/x86/POWER: Cleanup idle power management code in x86, cleanup drivers/cpuidle/cpuidle.c and introduce cpuidle to POWER. From: Peter Zijlstra In-Reply-To: <20091006163521.GA10425@linux.vnet.ibm.com> References: <20091006152421.GA7278@linux.vnet.ibm.com> <20091006163521.GA10425@linux.vnet.ibm.com> Content-Type: text/plain Date: Tue, 06 Oct 2009 20:04:39 +0200 Message-ID: <1254852279.17055.2.camel@laptop> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-arch-owner@vger.kernel.org List-ID: To: arun@linux.vnet.ibm.com Cc: Joel Schopp , Benjamin Herrenschmidt , Paul Mackerras , Ingo Molnar , Vaidyanathan Srinivasan , Dipankar Sarma , Balbir Singh , Gautham R Shenoy , Venkatesh Pallipadi , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arch@vger.kernel.org Message-ID: <20091006180439.HWplj2TbMMVlldI4zx74AIYBSeU69vM81x7hnc2qALQ@z> On Tue, 2009-10-06 at 22:05 +0530, Arun R Bharadwaj wrote: > Also, the per-cpu nature of registration/unregistration of cpuidle > has been maintained as ACPI needs this. Right, so can't we ditch that and have acpi default to the lowest common C-state and warn when various cpus report different C-states?