From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.innovsys.com (smtp.innovsys.com [66.115.232.196]) by ozlabs.org (Postfix) with ESMTP id 7E90CDDE9D for ; Wed, 19 Sep 2007 00:46:39 +1000 (EST) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: [PATCH 23/28] mpc82xx: Define CPU_FTR_NEED_COHERENT Date: Tue, 18 Sep 2007 09:34:31 -0500 Message-ID: In-Reply-To: <20070917165815.GW6563@loki.buserror.net> References: <20070917165643.GA6545@loki.buserror.net> <20070917165815.GW6563@loki.buserror.net> From: "Rune Torgersen" To: "Scott Wood" , Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , > -----Original Message----- > From: Scott Wood > Sent: Monday, September 17, 2007 11:58 AM >=20 > The 8272 (and presumably other PCI PQ2 chips) appear to have the > same issue as the 83xx regarding PCI streaming DMA. >=20 Can you explain what this isssue is? We're using a 8280 and have had some PCI busmaster DMA problems, and wonder if it is related.