Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263741AbUFSARm (ORCPT ); Fri, 18 Jun 2004 20:17:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264962AbUFSARj (ORCPT ); Fri, 18 Jun 2004 20:17:39 -0400 Received: from outmail1.freedom2surf.net ([194.106.33.237]:22944 "EHLO outmail.freedom2surf.net") by vger.kernel.org with ESMTP id S263741AbUFSAPM (ORCPT ); Fri, 18 Jun 2004 20:15:12 -0400 Date: Sat, 19 Jun 2004 01:14:16 +0100 From: Ian Molton To: James Bottomley Cc: david-b@pacbell.net, 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: <20040619011416.64d16c4e.spyro@f2s.com> In-Reply-To: <1087603453.2135.224.camel@mulgrave> 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> <20040618204438.35278560.spyro@f2s.com> <1087588627.2134.155.camel@mulgrave> <20040619002522.0c0d8e51.spyro@f2s.com> <1087601363.2078.208.camel@mulgrave> <20040619005106.15b8c393.spyro@f2s.com> <1087603453.2135.224.camel@mulgrave> 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: 540 Lines: 18 On 18 Jun 2004 19:04:11 -0500 James Bottomley wrote: > Because the piece of memory you wish to access is bus remote. No, its *not* my CPU can write there directly. no strings attached. the DMA API just only understands how to map from RAM, not anything else. - 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/