Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757499AbZFPRDk (ORCPT ); Tue, 16 Jun 2009 13:03:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752307AbZFPRDd (ORCPT ); Tue, 16 Jun 2009 13:03:33 -0400 Received: from az33egw02.freescale.net ([192.88.158.103]:33278 "EHLO az33egw02.freescale.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751021AbZFPRDc (ORCPT ); Tue, 16 Jun 2009 13:03:32 -0400 Message-ID: <4A37D073.6020802@freescale.com> Date: Tue, 16 Jun 2009 12:03:47 -0500 From: Scott Wood User-Agent: Mozilla-Thunderbird 2.0.0.19 (X11/20090103) MIME-Version: 1.0 To: Chris Pringle CC: linux-kernel@vger.kernel.org, "linuxppc-dev@ozlabs.org list" Subject: Re: PowerPC PCI DMA issues (prefetch/coherency?) References: <4A37A503.3030209@oxtel.com> <20090616162114.GA5051@loki.buserror.net> <4A37C97A.5050508@oxtel.com> <4A37CC72.3060709@freescale.com> <4A37CF02.5080906@oxtel.com> In-Reply-To: <4A37CF02.5080906@oxtel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAQAAAWE= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 552 Lines: 14 Chris Pringle wrote: > Ah right - that would explain what we're seeing then... Doh. Thought I > might have been onto something then. Is there any way to force a cache > flush? That'd at least prove it was a caching issue if it resolved the > problem. You could enable CONFIG_NOT_COHERENT_CACHE. -Scott -- 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/