Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755808Ab0GJO4m (ORCPT ); Sat, 10 Jul 2010 10:56:42 -0400 Received: from 8bytes.org ([88.198.83.132]:34386 "EHLO 8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751785Ab0GJO4k (ORCPT ); Sat, 10 Jul 2010 10:56:40 -0400 Date: Sat, 10 Jul 2010 16:56:39 +0200 From: Joerg Roedel To: Zach Pfeffer Cc: Daniel Walker , Andi Kleen , Randy Dunlap , mel@csn.ul.ie, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [RFC 3/3] mm: iommu: The Virtual Contiguous Memory Manager Message-ID: <20100710145639.GC10080@8bytes.org> References: <1277877350-2147-1-git-send-email-zpfeffer@codeaurora.org> <1277877350-2147-3-git-send-email-zpfeffer@codeaurora.org> <20100701101746.3810cc3b.randy.dunlap@oracle.com> <20100701180241.GA3594@basil.fritz.box> <1278021944.7738.43.camel@c-dwalke-linux.qualcomm.com> <4C2D965F.5000206@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C2D965F.5000206@codeaurora.org> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 881 Lines: 22 On Fri, Jul 02, 2010 at 12:33:51AM -0700, Zach Pfeffer wrote: > Daniel Walker wrote: > > So if we include this code which "map implementations" could you > > collapse into this implementations ? Generally , what currently existing > > code can VCMM help to eliminate? > > In theory, it can eliminate all code the interoperates between IOMMU, > CPU and non-IOMMU based devices and all the mapping code, alignment, > mapping attribute and special block size support that's been > implemented. Thats a very abstract statement. Can you point to particular code files and give a rough sketch how it could be improved using VCMM? Joerg -- 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/