From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mtagate6.uk.ibm.com ([195.212.29.139]:29959 "EHLO mtagate6.uk.ibm.com") by vger.kernel.org with ESMTP id S1751303AbWISIDg (ORCPT ); Tue, 19 Sep 2006 04:03:36 -0400 Subject: Re: [PATCH 2/6] Introduce CONFIG_ZONE_DMA From: Martin Schwidefsky Reply-To: schwidefsky@de.ibm.com In-Reply-To: References: <20060911222729.4849.69497.sendpatchset@schroedinger.engr.sgi.com> <20060911222739.4849.79915.sendpatchset@schroedinger.engr.sgi.com> <20060918135559.GB15096@infradead.org> <1158588487.31364.3.camel@localhost> Content-Type: text/plain Date: Tue, 19 Sep 2006 10:03:32 +0200 Message-Id: <1158653012.17979.2.camel@localhost> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-arch-owner@vger.kernel.org To: Christoph Lameter Cc: Christoph Hellwig , linux-mm@vger.kernel.org, Nick Piggin , linux-ia64@vger.kernel.org, Marcelo Tosatti , Arjan van de Ven , Martin Bligh , KAMEZAWA Hiroyuki , Andi Kleen , linux-arch@vger.kernel.org List-ID: On Mon, 2006-09-18 at 10:28 -0700, Christoph Lameter wrote: > > s390 needs ZONE_DMA for the memory area below 2GB. That is required for > > the control structure of channel based I/O. It is not ISA but > > conceptually related. Can we rename GENERIC_ISA_DMA into GENERIC_IO_DMA > > or something similar? > > The patchset defines CONFIG_ZONE_DMA for s390 so you are fine. Ok, I've looked at the patch and defining ZONE_DMA is the straightforward solution. No need to make detours over GENERIC_ISA_DMA. -- blue skies, Martin. Martin Schwidefsky Linux for zSeries Development & Services IBM Deutschland Entwicklung GmbH "Reality continues to ruin my life." - Calvin.