From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262323AbVBQT7l (ORCPT ); Thu, 17 Feb 2005 14:59:41 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262328AbVBQT7d (ORCPT ); Thu, 17 Feb 2005 14:59:33 -0500 Received: from caramon.arm.linux.org.uk ([212.18.232.186]:58634 "EHLO caramon.arm.linux.org.uk") by vger.kernel.org with ESMTP id S262323AbVBQT6y (ORCPT ); Thu, 17 Feb 2005 14:58:54 -0500 Date: Thu, 17 Feb 2005 19:58:51 +0000 From: Russell King To: Frank Buss Cc: linux-kernel@vger.kernel.org Subject: Re: Problems with dma_mmap_writecombine on mach-pxa Message-ID: <20050217195851.B22752@flint.arm.linux.org.uk> Mail-Followup-To: Frank Buss , linux-kernel@vger.kernel.org References: <20050217181241.A22752@flint.arm.linux.org.uk> <20050217191436.942345B874@frankbuss.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20050217191436.942345B874@frankbuss.de>; from fb@frank-buss.de on Thu, Feb 17, 2005 at 08:14:34PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 17, 2005 at 08:14:34PM +0100, Frank Buss wrote: > > Please try this (and revert your changes): > > thanks, this could fix the bug with the vm_pgoff, but I don't think this > will fix the problem with the ignored memory access after the first > PAGE_SIZE from the mapped memory. I'll try it tommorow, when I'm again at my > customers site, where I have access to the board. Since we map the whole lot in one go, if you get one page, there's no reason why you shouldn't get the lot. This is why I'm wondering if it has something to do with your other modifications. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/ 2.6 Serial core