From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Wed, 03 Jun 2009 16:32:41 +0100 (WEST) Received: from elvis.franken.de ([193.175.24.41]:46586 "EHLO elvis.franken.de" rhost-flags-OK-OK-OK-OK) by ftp.linux-mips.org with ESMTP id S20022946AbZFCPce (ORCPT ); Wed, 3 Jun 2009 16:32:34 +0100 Received: from uucp (helo=solo.franken.de) by elvis.franken.de with local-bsmtp (Exim 3.36 #1) id 1MBsS8-00045P-00; Wed, 03 Jun 2009 17:32:32 +0200 Received: by solo.franken.de (Postfix, from userid 1000) id 265FFC34F9; Wed, 3 Jun 2009 17:31:52 +0200 (CEST) Date: Wed, 3 Jun 2009 17:31:52 +0200 From: Thomas Bogendoerfer To: Yoichi Yuasa Cc: Ralf Baechle , linux-mips Subject: Re: [PATCH][MIPS] add DMA declare coherent memory support Message-ID: <20090603153151.GA4009@alpha.franken.de> References: <20090604001604.9ced2997.yoichi_yuasa@tripeaks.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090604001604.9ced2997.yoichi_yuasa@tripeaks.co.jp> User-Agent: Mutt/1.5.18 (2008-05-17) Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 23220 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: tsbogend@alpha.franken.de Precedence: bulk X-list: linux-mips On Thu, Jun 04, 2009 at 12:16:04AM +0900, Yoichi Yuasa wrote: > > Signed-off-by: Yoichi Yuasa a little bit more description what this is all about would be quite helpful. I also see a problem as there is at least one MIPS machine (SGI IP28), which doesn't support coherent memory (at least not without playing dirty games with the memory controller, which in return makes the machine slow). Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessary a good idea. [ RFC1925, 2.3 ]