From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751223AbWCFBDm (ORCPT ); Sun, 5 Mar 2006 20:03:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751301AbWCFBDm (ORCPT ); Sun, 5 Mar 2006 20:03:42 -0500 Received: from cavan.codon.org.uk ([217.147.92.49]:31376 "EHLO vavatch.codon.org.uk") by vger.kernel.org with ESMTP id S1751223AbWCFBDl (ORCPT ); Sun, 5 Mar 2006 20:03:41 -0500 Date: Mon, 6 Mar 2006 01:03:33 +0000 From: Matthew Garrett To: Jeff Garzik Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: PATA failure with piix, works with libata Message-ID: <20060306010333.GA8951@srcf.ucam.org> References: <20060303183937.GA30840@srcf.ucam.org> <20060305225733.GA8578@srcf.ucam.org> <440B770A.8090707@garzik.org> <20060306003221.GA8805@srcf.ucam.org> <440B8921.9030602@garzik.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <440B8921.9030602@garzik.org> User-Agent: Mutt/1.5.9i X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@codon.org.uk X-SA-Exim-Scanned: No (on vavatch.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Mar 05, 2006 at 07:58:09PM -0500, Jeff Garzik wrote: > Matthew Garrett wrote: > >Yeah, this is an ICH7. I can't find anything in drivers/ide that would > >result in it being done, which is why I'm kind of confused. ide_ack_intr > >seems to be defined to do nothing on x86 since IDE_ARCH_ACK_INTR isn't > >defined there? > > This is more a piix-specific behavior than an arch-specific behavior. Joy. So it works by accident in legacy mode? Does anything need to be done other than just writing the DMA status register back? I'm not finding anything terribly helpful in the ICH7 docs, but I may just be being blind. -- Matthew Garrett | mjg59@srcf.ucam.org