From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756648AbYIRSVP (ORCPT ); Thu, 18 Sep 2008 14:21:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755436AbYIRSVA (ORCPT ); Thu, 18 Sep 2008 14:21:00 -0400 Received: from one.firstfloor.org ([213.235.205.2]:38883 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754399AbYIRSVA (ORCPT ); Thu, 18 Sep 2008 14:21:00 -0400 Date: Thu, 18 Sep 2008 20:25:28 +0200 From: Andi Kleen To: Ingo Molnar Cc: FUJITA Tomonori , andi@firstfloor.org, joerg.roedel@amd.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/3] fix GART to respect device's dma_mask about virtual mappings Message-ID: <20080918182528.GP25711@one.firstfloor.org> References: <20080916134335.GC25711@one.firstfloor.org> <20080917021319O.fujita.tomonori@lab.ntt.co.jp> <20080916175824.GF25711@one.firstfloor.org> <20080917085335F.fujita.tomonori@lab.ntt.co.jp> <20080917104327.GD18764@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080917104327.GD18764@elte.hu> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > no - any extra layer of robustness is good in such a critical piece of robustness would require to handle it everywhere (as in always fall back to 24bit DMA bouncing if someone tries a map_* on a < 32bit mapping), but this patch doesn't do that at all. -Andi -- ak@linux.intel.com