From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754042AbYISRae (ORCPT ); Fri, 19 Sep 2008 13:30:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751116AbYISRa0 (ORCPT ); Fri, 19 Sep 2008 13:30:26 -0400 Received: from outbound-va3.frontbridge.com ([216.32.180.16]:15099 "EHLO VA3EHSOBE004.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751081AbYISRaZ (ORCPT ); Fri, 19 Sep 2008 13:30:25 -0400 X-BigFish: VPS-37(z1039oz1418M1432R98dR1805M179dR936fQzz10d3izz2f39iz32i6bh43j61h) X-Spam-TCS-SCL: 0:0 X-FB-SS: 5, X-WSS-ID: 0K7GDXY-04-W17-01 Date: Fri, 19 Sep 2008 19:30:04 +0200 From: Joerg Roedel To: FUJITA Tomonori CC: mingo@elte.hu, linux-kernel@vger.kernel.org Subject: Re: [PATCH] remove fullflush and nofullflush in IOMMU generic option Message-ID: <20080919173004.GA9837@amd.com> References: <20080920012322R.fujita.tomonori@lab.ntt.co.jp> <20080919164541.GS24392@amd.com> <20080920020917O.fujita.tomonori@lab.ntt.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20080920020917O.fujita.tomonori@lab.ntt.co.jp> User-Agent: mutt-ng/devel-r804 (Linux) X-OriginalArrivalTime: 19 Sep 2008 17:30:04.0106 (UTC) FILETIME=[5A10E2A0:01C91A7D] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Sep 20, 2008 at 02:09:21AM +0900, FUJITA Tomonori wrote: > > Please keep it for AMD option for now. Please send a patch to make it > generic to other IOMMU people and give them a chance to discuss on > it. > Btw, you already agreed with a generic iommu= parameter for lazy IO/TLB flushing" > True. We should merge common parameters across IOMMUs into the > iommu= parameter some time in the future, I think. It would also be the > place for the IOMMU size parameter. Hmm, now is better than the future? I think that now you can add something like 'disable_batching_flush' as a common parameter and change AMD IOMMU to use it. in http://lkml.org/lkml/2008/9/17/376 And since we already have a iommu=fullflush parameter it makes sense of make it generic. Joerg -- | AMD Saxony Limited Liability Company & Co. KG Operating | Wilschdorfer Landstr. 101, 01109 Dresden, Germany System | Register Court Dresden: HRA 4896 Research | General Partner authorized to represent: Center | AMD Saxony LLC (Wilmington, Delaware, US) | General Manager of AMD Saxony LLC: Dr. Hans-R. Deppe, Thomas McCoy