From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755901AbcKJSkT (ORCPT ); Thu, 10 Nov 2016 13:40:19 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:50376 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755276AbcKJSkR (ORCPT ); Thu, 10 Nov 2016 13:40:17 -0500 DMARC-Filter: OpenDMARC Filter v1.3.1 smtp.codeaurora.org 6D9B161258 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=pass smtp.mailfrom=rkuo@codeaurora.org Date: Thu, 10 Nov 2016 12:40:14 -0600 From: Richard Kuo To: Alexander Duyck Cc: linux-mm@kvack.org, akpm@linux-foundation.org, linux-hexagon@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [mm PATCH v3 07/23] arch/hexagon: Add option to skip DMA sync as a part of mapping Message-ID: <20161110184014.GA30680@codeaurora.org> References: <20161110113027.76501.63030.stgit@ahduyck-blue-test.jf.intel.com> <20161110113452.76501.45864.stgit@ahduyck-blue-test.jf.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161110113452.76501.45864.stgit@ahduyck-blue-test.jf.intel.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 10, 2016 at 06:34:52AM -0500, Alexander Duyck wrote: > This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to > avoid invoking cache line invalidation if the driver will just handle it > later via a sync_for_cpu or sync_for_device call. > > Cc: Richard Kuo > Cc: linux-hexagon@vger.kernel.org > Signed-off-by: Alexander Duyck > --- > arch/hexagon/kernel/dma.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > For Hexagon: Acked-by: Richard Kuo -- Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project