From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750749AbWE1MGy (ORCPT ); Sun, 28 May 2006 08:06:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750747AbWE1MGy (ORCPT ); Sun, 28 May 2006 08:06:54 -0400 Received: from rtr.ca ([64.26.128.89]:60334 "EHLO mail.rtr.ca") by vger.kernel.org with ESMTP id S1750749AbWE1MGx (ORCPT ); Sun, 28 May 2006 08:06:53 -0400 Message-ID: <4479925C.2070909@rtr.ca> Date: Sun, 28 May 2006 08:06:52 -0400 From: Mark Lord User-Agent: Thunderbird 1.5.0.2 (X11/20060420) MIME-Version: 1.0 To: Grant Coady Cc: linux-kernel@vger.kernel.org, alan@lxorguk.ukuu.org.uk Subject: Re: Query: No IDE DMA for IBM 365X with PIIX chipset? References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Grant Coady wrote: > Hi there, > > Have an old Thinkpad 365X laptop that 'hdparm -i' tells me is > running mdma2 but it refuses to set dma mode. 2.6.16.18 also > refuses to set dma. ... No luck with "hdparm -d1 /dev/hda" ?? > ... > ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx > PIIXa: IDE controller at PCI slot 00:01.0 > PIIXa: chipset revision 2 > PIIXa: not 100% native mode: will probe irqs later > PIIXa: neither IDE port enabled (BIOS) > hda: TOSHIBA MK6014MAP, ATA DISK drive > ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 > hda: attached ide-disk driver. > hda: host protected area => 1 > hda: 11733120 sectors (6007 MB), CHS=776/240/63 > Partition check: > hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 hda8 > ... Mmm.. there's a curious line: "PIIXa: neither IDE port enabled (BIOS)". Can you enable DMA in the BIOS? The IDE driver seems to be unwilling to set up the bus-master DMA (BMDMA) portion of the chip unless it was already initialized by the BIOS (paranoia, I suppose, or maybe a bug). Cheers