Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753721AbaDYOGV (ORCPT ); Fri, 25 Apr 2014 10:06:21 -0400 Received: from mga02.intel.com ([134.134.136.20]:8699 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751184AbaDYOGU (ORCPT ); Fri, 25 Apr 2014 10:06:20 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,927,1389772800"; d="scan'208";a="528322254" Message-ID: <535A6BD7.4090709@intel.com> Date: Fri, 25 Apr 2014 22:06:15 +0800 From: "Yan, Zheng" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: Peter Zijlstra CC: Stephane Eranian , Ingo Molnar , LKML , Arnaldo Carvalho de Melo , Andi Kleen Subject: Re: [PATCH v2 4/4] perf/x86/uncore: modularize Intel uncore driver References: <1395295426-12391-1-git-send-email-zheng.z.yan@intel.com> <20140418105354.GA29167@gmail.com> <53548008.3040504@intel.com> <20140422113545.GA14950@gmail.com> <20140424081408.GA7709@gmail.com> <5358E6A2.3020505@intel.com> <20140424112715.GQ11096@twins.programming.kicks-ass.net> <535A6070.90803@intel.com> <20140425135549.GF11096@twins.programming.kicks-ass.net> In-Reply-To: <20140425135549.GF11096@twins.programming.kicks-ass.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/25/2014 09:55 PM, Peter Zijlstra wrote: > On Fri, Apr 25, 2014 at 09:17:36PM +0800, Yan, Zheng wrote: >> On 04/24/2014 07:27 PM, Peter Zijlstra wrote: >>> On Thu, Apr 24, 2014 at 12:36:01PM +0200, Stephane Eranian wrote: >>>>> Most of hardware specific codes in the Intel uncore driver are for >>>>> SandyBridge/IvyBridge/Haswell. Uncore subsystem in these CPUs are >>>>> similar. One module per CPU type means we have to duplicate lots of >>>>> code. I don't think it's a good idea. >>>>> >>>> Then, at least split nhm_ex from the rest. It is very big. >>> >>> Aren't the EX parts in general far more complex and different from the >>> EP parts? Or will the SNB/IVB/HSW-EX parts also be similar again? (this >>> would be a good thing). >> >> SNB/IVB/HSW-EX are almost identical to SNB/IVB/HSW-EP. > > Ah, good, sanity prevails! > >> NHM/WSM-EX are complete different from SNB/IVB/HSW-EX > > Yeah, NHM/WSM-EX are different from pretty much anything. > > Where do NHM/WSM-EP fall? I know they're radically different to the EX > parts but are they similar again to the SNB/IVB/HSW EP parts? > the uncore driver does not support NHM/WSM-EP (I don't know the module numbers for NHM/WSM-EP, maybe I'm wrong) > If not we'd have 3 groups: > > NHM/WSM-EP > NHM/WSM-EX > SNB/IVB/HSW > I think we'd have: NHM/WSM-EX SNB/IVB/HSW-EP Desktop version of NHM/SNB/IVB/HSW Regards Yan, Zheng -- 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/