From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: Re: [PATCH 1/1] x86: replace cpu_up hard-coded mdelay with variable Date: Wed, 22 Apr 2015 08:07:34 +0200 Message-ID: <20150422060734.GA25230@gmail.com> References: <1429404795-23260-1-git-send-email-lenb@kernel.org> <87d69aab88c14d65ae1e7be55050d1b689b59b4b.1429402494.git.len.brown@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-wi0-f170.google.com ([209.85.212.170]:37075 "EHLO mail-wi0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755840AbbDVGHk (ORCPT ); Wed, 22 Apr 2015 02:07:40 -0400 Content-Disposition: inline In-Reply-To: Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Paul Gortmaker Cc: Len Brown , X86 ML , Linux PM list , LKML , Len Brown * Paul Gortmaker wrote: > On Sat, Apr 18, 2015 at 8:53 PM, Len Brown wrote: > > From: Len Brown > > > > [...] > > > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > > index b7d31ca..d2a91da 100644 > > --- a/arch/x86/Kconfig > > +++ b/arch/x86/Kconfig > > @@ -884,6 +884,21 @@ config SCHED_MC > > making when dealing with multi-core CPU chips at a cost of slightly > > increased overhead in some places. If unsure say N here. > > > > +config X86_INIT_MDELAY > > + int "Milliseconds to wait to de-assert INIT upon CPU startup" if SMP > > + range 0 10 > > + default "10" > > + ---help--- > > + This allows you to specify how long the BSP will delay > > + between asserting INIT and de-asserting INIT when starting another CPU. > > + This delay is paid on each cpu-online operation, including boot-time, > > + resume from suspend, and resume from hibernate. The the value of > > Happened to notice a 2x "The the..." when I came across this in > linux-next today and was reading the help out of curiousity... Len, this commit isn't in a permanent Git tree yet, right? We want to do this through the x86 tree, and along the suggestions I made. Thanks, Ingo