Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262066AbTEROIm (ORCPT ); Sun, 18 May 2003 10:08:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262073AbTEROIm (ORCPT ); Sun, 18 May 2003 10:08:42 -0400 Received: from nat-pool-rdu.redhat.com ([66.187.233.200]:30532 "EHLO devserv.devel.redhat.com") by vger.kernel.org with ESMTP id S262066AbTEROIl (ORCPT ); Sun, 18 May 2003 10:08:41 -0400 Date: Sun, 18 May 2003 14:21:30 +0000 From: Arjan van de Ven To: James Bottomley Cc: arjanv@redhat.com, Jes Sorensen , Linus Torvalds , "David S. Miller" , Grant Grundler , Colin Ngam , Jeremy Higdon , Linux Kernel , linux-ia64@linuxia64.org, wildos@sgi.com Subject: Re: [patch] support 64 bit pci_alloc_consistent Message-ID: <20030518142130.A30977@devserv.devel.redhat.com> References: <16071.1892.811622.257847@trained-monkey.org> <1053250142.1300.8.camel@laptop.fenrus.com> <1053267471.10811.28.camel@mulgrave> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <1053267471.10811.28.camel@mulgrave>; from James.Bottomley@SteelEye.com on Sun, May 18, 2003 at 09:17:48AM -0500 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 686 Lines: 13 On Sun, May 18, 2003 at 09:17:48AM -0500, James Bottomley wrote: > (it uses 32 bit addr and 32 bit len descriptors, but reduces len to 24 > bits to steal the extra byte for 7 bits extra addressing). However, it > is forced to request the full 64 bit address mask---I've never worked > out what will happen to it on a machine with more than 512GB memory. Uh??? right now even in 2.4 arbitrary bitmasks are supported for non-coherent memory. - 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/