From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752915Ab1DSGNJ (ORCPT ); Tue, 19 Apr 2011 02:13:09 -0400 Received: from am1ehsobe006.messaging.microsoft.com ([213.199.154.209]:42923 "EHLO AM1EHSOBE006.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752320Ab1DSGNH (ORCPT ); Tue, 19 Apr 2011 02:13:07 -0400 X-SpamScore: -34 X-BigFish: VPS-34(zzbb2dK9371O179dN1432N98dKzz1202hzz15d4R8275bhz32i668h839h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: KIP:(null);UIP:(null);IPVD:NLI;H:ausb3twp02.amd.com;RD:none;EFVD:NLI X-WSS-ID: 0LJVYLP-02-57Q-02 X-M-MSG: Date: Tue, 19 Apr 2011 08:12:59 +0200 From: "Roedel, Joerg" To: Ingo Molnar CC: "H. Peter Anvin" , Ingo Molnar , Thomas Gleixner , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , "stable@kernel.org" Subject: Re: [PATCH 4/4] x86, gart: Make sure GART does not map physmem above 1TB Message-ID: <20110419061259.GL2192@amd.com> References: <1303134346-5805-1-git-send-email-joerg.roedel@amd.com> <1303134346-5805-5-git-send-email-joerg.roedel@amd.com> <4DAC4EC0.80008@zytor.com> <4DAC5099.4010403@kernel.org> <20110418145941.GJ2192@amd.com> <20110418155033.GC8623@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20110418155033.GC8623@elte.hu> User-Agent: Mutt/1.5.20 (2009-06-14) X-OriginatorOrg: amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 18, 2011 at 11:50:33AM -0400, Ingo Molnar wrote: > > * Roedel, Joerg wrote: > > > On Mon, Apr 18, 2011 at 10:54:17AM -0400, H. Peter Anvin wrote: > > > On 04/18/2011 07:46 AM, H. Peter Anvin wrote: > > > > On 04/18/2011 06:45 AM, Joerg Roedel wrote: > > > >> The GART can only map physical memory below 1TB. Make sure > > > >> the gart driver in the kernel does not try to map memory > > > >> above 1TB. > > > > > > > > Where does this limit come from? > > > > > > Nevermind... despite the generic name of the file it looks to be > > > specific to the K8 GART. > > > > Yes, this file mostly contains the dma-ops implementation that uses the > > K8 gart plus some k8-gart specific initialization functions. > > Does the file want to be renamed to pci-amd_gart_64.c or so? Hmm, that seems long. How about just amd64_gart.c? Joerg -- AMD Operating System Research Center Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach General Managers: Alberto Bozzo, Andrew Bowd Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632