Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758725AbXFZPeT (ORCPT ); Tue, 26 Jun 2007 11:34:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757413AbXFZPeB (ORCPT ); Tue, 26 Jun 2007 11:34:01 -0400 Received: from one.firstfloor.org ([213.235.205.2]:42013 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755842AbXFZPd7 (ORCPT ); Tue, 26 Jun 2007 11:33:59 -0400 Date: Tue, 26 Jun 2007 17:33:58 +0200 From: Andi Kleen To: Arjan van de Ven Cc: Andi Kleen , Muli Ben-Yehuda , Andrew Morton , "Keshavamurthy, Anil S" , linux-kernel@vger.kernel.org, gregkh@suse.de, suresh.b.siddha@intel.com, ashok.raj@intel.com, davem@davemloft.net, clameter@sgi.com Subject: Re: [Intel IOMMU 00/10] Intel IOMMU support, take #2 Message-ID: <20070626153358.GA5244@one.firstfloor.org> References: <20070619213701.219910000@askeshav-devel.jf.intel.com> <20070625234550.058635cb.akpm@linux-foundation.org> <200706260912.45838.ak@suse.de> <20070626111324.GB4320@rhun.ibm.com> <46812D79.8080306@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <46812D79.8080306@linux.intel.com> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 895 Lines: 26 On Tue, Jun 26, 2007 at 08:15:05AM -0700, Arjan van de Ven wrote: > > > >Also the user interface for X server case needs more work. > > > > actually with the mode setting of X moving into the kernel... X won't > use /dev/mem anymore at all We'll see if that happens. It has been talked about forever, but results are sparse. > (and I think it mostly already doesn't even without that) It uses /sys/bus/pci/* which is not any better as seen from the IOMMU. Any interface will need to be explicit because user space needs to know which DMA addresses to put into the hardware. It's not enough to just transparently translate the mappings. -Andi - 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/