Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758155AbXIVAtR (ORCPT ); Fri, 21 Sep 2007 20:49:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753710AbXIVAtJ (ORCPT ); Fri, 21 Sep 2007 20:49:09 -0400 Received: from highlandsun.propagation.net ([66.221.212.168]:4918 "EHLO highlandsun.propagation.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753082AbXIVAtI (ORCPT ); Fri, 21 Sep 2007 20:49:08 -0400 Message-ID: <46F46603.8040208@symas.com> Date: Fri, 21 Sep 2007 17:46:59 -0700 From: Howard Chu User-Agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.9a8pre) Gecko/2007091708 SeaMonkey/2.0a1pre MIME-Version: 1.0 To: "Siddha, Suresh B" CC: linux-kernel Subject: Re: MTRR initialization References: <46EAB7DA.10507@symas.com> <20070922002717.GA16353@linux-os.sc.intel.com> In-Reply-To: <20070922002717.GA16353@linux-os.sc.intel.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1255 Lines: 28 Siddha, Suresh B wrote: > On Fri, Sep 14, 2007 at 09:33:30AM -0700, Howard Chu wrote: >> So now I have this, which is pretty much >> what >> I wanted: >> >> reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1 >> reg01: base=0x80000000 (2048MB), size=1024MB: write-back, count=1 >> reg02: base=0x100000000 (4096MB), size=1024MB: write-back, count=1 >> reg03: base=0xc0000000 (3072MB), size=1024MB: uncachable, count=1 >> reg04: base=0xc0000000 (3072MB), size= 256MB: write-combining, count=1 >> reg05: base=0xd0000000 (3328MB), size= 256MB: write-combining, count=1 > > BTW, having overlapping WC, UC regions make the end result UC. So in this > case, you may not be getting the desired performance. Thanks, I noticed that later. I simply deleted the UC mapping since it was no longer needed. -- -- Howard Chu Chief Architect, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/ - 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/