From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161605Ab3DKSHz (ORCPT ); Thu, 11 Apr 2013 14:07:55 -0400 Received: from mho-03-ewr.mailhop.org ([204.13.248.66]:54601 "EHLO mho-01-ewr.mailhop.org" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1161570Ab3DKSHx (ORCPT ); Thu, 11 Apr 2013 14:07:53 -0400 X-Mail-Handler: Dyn Standard SMTP by Dyn X-Originating-IP: 72.84.113.162 X-Report-Abuse-To: abuse@dyndns.com (see http://www.dyndns.com/services/sendlabs/outbound_abuse.html for abuse reporting information) X-MHO-User: U2FsdGVkX1+Jrl8ihjmYWKvv8nMr7TnWHiXftKZxhTQ= Date: Thu, 11 Apr 2013 14:07:36 -0400 From: Jason Cooper To: Gregory CLEMENT Cc: Andrew Lunn , Lior Amsalem , Ike Pan , Grant Likely , David Marlin , Yehuda Yitschak , Tawfik Bayouk , Dan Frazier , Eran Ben-Avi , Ezequiel Garcia , Leif Lindholm , Sebastian Hesselbarth , Arnd Bergmann , Jon Masters , devicetree-discuss@lists.ozlabs.org, Rob Herring , linux-arm-kernel@lists.infradead.org, Thomas Petazzoni , Chris Van Hoof , Nicolas Pitre , linux-kernel@vger.kernel.org, Maen Suleiman , Nadav Haklai , Shadi Ammouri , Olof Johansson Subject: Re: [PATCH v3 2/9] ARM: mvebu: Limit the DMA zone when LPAE is selected Message-ID: <20130411180736.GM28693@titan.lakedaemon.net> References: <1365461538-30702-1-git-send-email-gregory.clement@free-electrons.com> <1365461538-30702-3-git-send-email-gregory.clement@free-electrons.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1365461538-30702-3-git-send-email-gregory.clement@free-electrons.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 09, 2013 at 12:52:10AM +0200, Gregory CLEMENT wrote: > When LPAE is activated on Armada XP, all registers and IOs are still > 32bit, the 40bit extension is on the CPU to DRAM path (windows) only. > That means that all the DMA transfer are restricted to the low 32 bits > address space. This is limitation is achieved by selecting ZONE_DMA. > > Signed-off-by: Gregory CLEMENT > --- > arch/arm/mach-mvebu/Kconfig | 1 + > 1 file changed, 1 insertion(+) Applied to mvebu/soc thx, Jason.