Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753583AbXINRND (ORCPT ); Fri, 14 Sep 2007 13:13:03 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751111AbXINRMy (ORCPT ); Fri, 14 Sep 2007 13:12:54 -0400 Received: from wa-out-1112.google.com ([209.85.146.176]:14380 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750874AbXINRMx (ORCPT ); Fri, 14 Sep 2007 13:12:53 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=DXCPAE8iJexp438ZIgjy5KsjwMqD1dQHwVPvi7ihN7SzOw0GahwLxkTX/57967LGkNSfNr/KieBkOh+CwXTWtGelqEnDjnv3XGNQKJUdEHDUot4MNI6PbOdk2zTG735ECMSlubQG/SlRL2gtmzBnn2MtlL65t2PHT57Qd/5KD0k= Message-ID: <86802c440709141012w1e85e4caue0d2c7f849dba1cb@mail.gmail.com> Date: Fri, 14 Sep 2007 10:12:52 -0700 From: "Yinghai Lu" To: "Howard Chu" Subject: Re: MTRR initialization Cc: linux-kernel In-Reply-To: <46EAB7DA.10507@symas.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <46EAB7DA.10507@symas.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1118 Lines: 24 On 9/14/07, Howard Chu wrote: > Hi, was wondering if anyone else has been tripped up by this... I've got 4GB of > RAM in my Asus A8V Deluxe and memory hole mapping enabled in the BIOS. By > default, my system boots up with these MTRR settings: > > reg00: base=0x00000000 ( 0MB), size=4096MB: write-back, count=1 > reg01: base=0x100000000 (4096MB), size=1024MB: write-back, count=1 > reg02: base=0xc0000000 (3072MB), size=1024MB: uncachable, count=1 > reg03: base=0xc0000000 (3072MB), size= 256MB: write-combining, count=1 BIOS should have another setup option about MTRR (continous?) then you could get > reg00: base=0x00000000 ( 0MB), size=2048MB: write-back, count=1 > reg01: base=0x100000000 (2048MB), size=1024MB: write-back, count=1 reg02: base=0x100000000 (4096MB), size=1024MB: write-back, count=1 ===> if you have rev E...instead of rev F. YH - 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/