Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759624AbZD0UFM (ORCPT ); Mon, 27 Apr 2009 16:05:12 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755636AbZD0UE5 (ORCPT ); Mon, 27 Apr 2009 16:04:57 -0400 Received: from az33egw02.freescale.net ([192.88.158.103]:41159 "EHLO az33egw02.freescale.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758201AbZD0UE5 (ORCPT ); Mon, 27 Apr 2009 16:04:57 -0400 Message-ID: <49F60FE1.90707@freescale.com> Date: Mon, 27 Apr 2009 15:04:49 -0500 From: Timur Tabi User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1b3pre) Gecko/20090327 SeaMonkey/2.0a3 MIME-Version: 1.0 To: David Hawkins CC: linuxppc-dev@ozlabs.org, Dan Williams , Liu Dave-R63238 , linux-kernel@vger.kernel.org, Ira Snyder Subject: Re: [PATCH] fsldma: use PCI Read Multiple command References: <20090424183517.GB23140@ovro.caltech.edu> <49F608B7.9080409@ovro.caltech.edu> <49F60A3A.4060402@freescale.com> <49F60BF8.8040404@ovro.caltech.edu> In-Reply-To: <49F60BF8.8040404@ovro.caltech.edu> Content-Type: text/plain; charset=ISO-8859-1 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: 864 Lines: 24 David Hawkins wrote: > Can you give me an example of non-PCI memory that would be > non-prefetchable that you'd like us to try? We can see if our > host CPUs have an area like that ... we just need to know > what device to look for first :) Hmmmm.... I was going to say any SOC device in the IMMR, but I don't see anything there that would constitute a memory buffer. I test this change on an 8610 and DMA to a register I/O, where this bit isn't even defined, and it made no difference. So I guess this change is okay. Acked-by: Timur Tabi -- Timur Tabi Linux kernel developer at Freescale -- 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/