Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266743AbUFRTte (ORCPT ); Fri, 18 Jun 2004 15:49:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265263AbUFRTsw (ORCPT ); Fri, 18 Jun 2004 15:48:52 -0400 Received: from outmail1.freedom2surf.net ([194.106.33.237]:55728 "EHLO outmail.freedom2surf.net") by vger.kernel.org with ESMTP id S266552AbUFRTpo (ORCPT ); Fri, 18 Jun 2004 15:45:44 -0400 Date: Fri, 18 Jun 2004 20:44:38 +0100 From: Ian Molton To: David Brownell Cc: James.Bottomley@SteelEye.com, linux-kernel@vger.kernel.org, greg@kroah.com, tony@atomide.com, jamey.hicks@hp.com, joshua@joshuawise.com Subject: Re: DMA API issues Message-Id: <20040618204438.35278560.spyro@f2s.com> In-Reply-To: <40D34078.5060909@pacbell.net> References: <1087582845.1752.107.camel@mulgrave> <20040618193544.48b88771.spyro@f2s.com> <1087584769.2134.119.camel@mulgrave> <20040618195721.0cf43ec2.spyro@f2s.com> <40D34078.5060909@pacbell.net> Organization: The Dragon Roost X-Mailer: Sylpheed version 0.9.12-gtk2-20040617 (GTK+ 2.4.1; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 516 Lines: 13 On Fri, 18 Jun 2004 12:20:24 -0700 David Brownell wrote: > For example, if usbaudio uses usb_buffer_alloc to stream data, > that eliminates dma bouncing. That's dma_alloc_coherent at > its core ... it should allocate from that 32K region. Agreed. - 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/