Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751385AbbHEF2x (ORCPT ); Wed, 5 Aug 2015 01:28:53 -0400 Received: from mga09.intel.com ([134.134.136.24]:62608 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750742AbbHEF2w (ORCPT ); Wed, 5 Aug 2015 01:28:52 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.15,614,1432623600"; d="scan'208";a="536250745" Date: Wed, 5 Aug 2015 11:00:28 +0530 From: Vinod Koul To: Maxime Ripard Cc: Nicolas Ferre , Alexandre Belloni , Ludovic Desroches , Thomas Petazzoni , Boris Brezillon , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 0/2] dmaengine: Add scatter-gathered memset support Message-ID: <20150805053028.GP11789@localhost> References: <1436177964-19380-1-git-send-email-maxime.ripard@free-electrons.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1436177964-19380-1-git-send-email-maxime.ripard@free-electrons.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 699 Lines: 21 On Mon, Jul 06, 2015 at 12:19:22PM +0200, Maxime Ripard wrote: > Hi Vinod, > > Here is a patch serie that adds a new dmaengine operation for > scatter-gathered memset. > > Indeed, doing a memset over a discontiguous buffer is quite > inefficient at the moment, since you have to create and submit each > chunk separately, which might result in a huge list of transfers, > while some controllers can handle that just fine. Applied, thanks -- ~Vinod -- 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/