Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758266AbXFZRcN (ORCPT ); Tue, 26 Jun 2007 13:32:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756622AbXFZRcC (ORCPT ); Tue, 26 Jun 2007 13:32:02 -0400 Received: from one.firstfloor.org ([213.235.205.2]:45771 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756382AbXFZRcA (ORCPT ); Tue, 26 Jun 2007 13:32:00 -0400 Date: Tue, 26 Jun 2007 19:31:57 +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: <20070626173157.GD5244@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> <20070626153358.GA5244@one.firstfloor.org> <46813E0F.1060806@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <46813E0F.1060806@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: 764 Lines: 23 > >>(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. > > that's what DRM is used for nowadays... But DRM does support much less hardware than the X server? Perhaps we just need an ioctl where an X server can switch this. -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/