From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758236AbXFSX5O (ORCPT ); Tue, 19 Jun 2007 19:57:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755643AbXFSX47 (ORCPT ); Tue, 19 Jun 2007 19:56:59 -0400 Received: from netops-testserver-4-out.sgi.com ([192.48.171.29]:50149 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755495AbXFSX47 (ORCPT ); Tue, 19 Jun 2007 19:56:59 -0400 Date: Tue, 19 Jun 2007 16:56:57 -0700 (PDT) From: Christoph Lameter X-X-Sender: clameter@schroedinger.engr.sgi.com To: "Keshavamurthy, Anil S" cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, ak@suse.de, gregkh@suse.de, muli@il.ibm.com, suresh.b.siddha@intel.com, arjan@linux.intel.com, ashok.raj@intel.com, davem@davemloft.net Subject: Re: [Intel IOMMU 05/10] Intel IOMMU driver In-Reply-To: <20070619235046.GA2228@linux-os.sc.intel.com> Message-ID: References: <20070619213701.219910000@askeshav-devel.jf.intel.com> <20070619213808.716432000@askeshav-devel.jf.intel.com> <20070619235046.GA2228@linux-os.sc.intel.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 19 Jun 2007, Keshavamurthy, Anil S wrote: > Memory allocated during driver init is very less and not much benefit > with the suggested changes I think. Please correct me If I am wrong. If its just a small amount of memory then the benefit will not be large. You are likely right. > The biggest benifit will be when we can figure out GPF_XXXX flags > during runtime when DMA map api's are called. Right.