Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269205AbUIHXdw (ORCPT ); Wed, 8 Sep 2004 19:33:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269220AbUIHXdw (ORCPT ); Wed, 8 Sep 2004 19:33:52 -0400 Received: from the-village.bc.nu ([81.2.110.252]:6569 "EHLO localhost.localdomain") by vger.kernel.org with ESMTP id S269205AbUIHX32 (ORCPT ); Wed, 8 Sep 2004 19:29:28 -0400 Subject: Re: ISA DMA From: Alan Cox To: Pierre Ossman Cc: Linux Kernel Mailing List In-Reply-To: <413F7960.8070500@drzeus.cx> References: <413F7960.8070500@drzeus.cx> Content-Type: text/plain Content-Transfer-Encoding: 7bit Message-Id: <1094682435.12335.23.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 (1.4.6-2) Date: Wed, 08 Sep 2004 23:27:15 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 698 Lines: 16 On Mer, 2004-09-08 at 22:28, Pierre Ossman wrote: > I'm trying to figure out how to do ISA DMA transfers. I can't figure out > how to satisfy all the requirements the ISA DMA controller sets. I've > set a DMA mask of 0x00ffffff but mappings end up above the 16MB limit > nonetheless. And I have no idea how to keep transfers within the same > 64k boundary. drivers/net/lance.c is a pretty good worked example of driving the old ISA bus grunge. - 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/