Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751928Ab0HSIwZ (ORCPT ); Thu, 19 Aug 2010 04:52:25 -0400 Received: from sh.osrg.net ([192.16.179.4]:39402 "EHLO sh.osrg.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750927Ab0HSIwX (ORCPT ); Thu, 19 Aug 2010 04:52:23 -0400 Date: Thu, 19 Aug 2010 17:51:51 +0900 To: khc@pm.waw.pl Cc: fujita.tomonori@lab.ntt.co.jp, linux@arm.linux.org.uk, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: ARM: 2.6.3[45] PCI regression (IXP4xx and PXA?) From: FUJITA Tomonori In-Reply-To: References: <20100813215413.GA21607@n2100.arm.linux.org.uk> <20100814181306U.fujita.tomonori@lab.ntt.co.jp> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: <20100819175024W.fujita.tomonori@lab.ntt.co.jp> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (sh.osrg.net [192.16.179.4]); Thu, 19 Aug 2010 17:51:51 +0900 (JST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1184 Lines: 34 On Tue, 17 Aug 2010 01:29:49 +0200 Krzysztof Halasa wrote: > Hi, > > FUJITA Tomonori writes: > > > A long solution would be having two dma_mask for a device and a > > bus. We also need something to represent a DMA-capable range instead > > of the dma mask. > > > > --- a/arch/arm/mm/dma-mapping.c > > +++ b/arch/arm/mm/dma-mapping.c > > @@ -77,6 +77,11 @@ static struct page *__dma_alloc_buffer(struct device *dev, size_t size, gfp_t gf > > if (mask < 0xffffffffULL) > > gfp |= GFP_DMA; > > > > +#ifdef CONFIG_DMABOUNCE > > + if (dev->archdata.dmabounce) > > + gfp |= GFP_DMA; > > +#endif > > + > > page = alloc_pages(gfp, order); > > if (!page) > > return NULL; > > This patch fixes the problem on my IXP425. Thanks a lot! I'll re-send the patch in the proper format. Can you send it to mainline for 2.6.36? I'll work on the proper solution for this issue for 2.6.37. -- 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/