Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754799AbYJCHlt (ORCPT ); Fri, 3 Oct 2008 03:41:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754103AbYJCHll (ORCPT ); Fri, 3 Oct 2008 03:41:41 -0400 Received: from smtp.ono.com ([62.42.230.12]:64818 "EHLO resmaa02.ono.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753779AbYJCHlk convert rfc822-to-8bit (ORCPT ); Fri, 3 Oct 2008 03:41:40 -0400 Date: Fri, 3 Oct 2008 09:41:37 +0200 From: "J.A. =?UTF-8?B?TWFnYWxsw7Nu?=" To: Linux-Kernel Subject: Re: [PATCH 2/2] x86: mtrr_cleanup try gran_size to less than 1M Message-ID: <20081003094137.4a4e8d29@werewolf.home> In-Reply-To: <20081003073727.GC4950@elte.hu> References: <1222739652-17169-1-git-send-email-yhlu.kernel@gmail.com> <1222739652-17169-2-git-send-email-yhlu.kernel@gmail.com> <20081003003237.04469201@werewolf.home> <20081003073727.GC4950@elte.hu> X-Mailer: Claws Mail 3.5.0cvs144 (GTK+ 2.14.3; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1752 Lines: 46 On Fri, 3 Oct 2008 09:37:27 +0200, Ingo Molnar wrote: > > * J.A. Magallón wrote: > > > Also, on a 64 bit box with 4Gb, it gives this: > > > > cicely:~# cat /proc/mtrr > > reg00: base=0x00000000 ( 0MB), size=4096MB: write-back, count=1 > > reg01: base=0x100000000 (4096MB), size=1024MB: write-back, count=1 > > reg02: base=0x140000000 (5120MB), size= 512MB: write-back, count=1 > > reg03: base=0x160000000 (5632MB), size= 256MB: write-back, count=1 > > reg04: base=0x80000000 (2048MB), size=2048MB: uncachable, count=1 > > > > Patch below cleans up formatting, with space for big bases and sizes (64 Gb). > > applied to tip/x86/mtrr, thanks! > > > +++ arch/x86/kernel/cpu/mtrr/if.c 2008-10-03 00:22:34.000000000 +0200 > > @@ -16,7 +16,7 @@ > > static const char *const mtrr_strings[MTRR_NUM_TYPES] = > > { > > "uncachable", /* 0 */ > > - "write-combining", /* 1 */ > > + "write-combine", /* 1 */ > > hm, maybe this bit could confuse versions of Xorg that modifies > /proc/mtrr - i.e. this could be part of the ABI towards user-space. > We'll see. > > Ingo Oops, it's not only used for messages, also for writes in /proc !!! Forget this part. -- J.A. Magallon \ Software is like sex: \ It's better when it's free Mandriva Linux release 2009.0 (Cooker) for i586 Linux 2.6.25-jam18 (gcc 4.3.1 20080626 (GCC) #1 SMP -- 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/