Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932778Ab1CWMuv (ORCPT ); Wed, 23 Mar 2011 08:50:51 -0400 Received: from fifo99.com ([67.223.236.141]:45235 "EHLO fifo99.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932679Ab1CWMut (ORCPT ); Wed, 23 Mar 2011 08:50:49 -0400 Subject: Re: [PATCH] msm: iommu: Use relaxed register access functions From: Daniel Walker To: Stepan Moskovchenko Cc: davidb@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org In-Reply-To: <1300392119-8062-1-git-send-email-stepanm@codeaurora.org> References: <1300392119-8062-1-git-send-email-stepanm@codeaurora.org> Content-Type: text/plain; charset="UTF-8" Date: Wed, 23 Mar 2011 05:50:47 -0700 Message-ID: <1300884647.6117.6.camel@m0nster> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 521 Lines: 14 On Thu, 2011-03-17 at 13:01 -0700, Stepan Moskovchenko wrote: > Use the relaxed versions of readl/writel for IOMMU register > access, inserting barriers where appropriate. Could you provide comments on why you need barriers in the various places you've placed them. Daniel -- 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/