From: Mark Lord <lkml@rtr.ca>
To: Grant Coady <gcoady.lk@gmail.com>
Cc: linux-kernel@vger.kernel.org, alan@lxorguk.ukuu.org.uk
Subject: Re: Query: No IDE DMA for IBM 365X with PIIX chipset?
Date: Sun, 28 May 2006 08:06:52 -0400 [thread overview]
Message-ID: <4479925C.2070909@rtr.ca> (raw)
In-Reply-To: <j9bi729h2u4dcn9da7na3t1d8ckk477d9b@4ax.com>
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
next prev parent reply other threads:[~2006-05-28 12:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-28 5:29 Query: No IDE DMA for IBM 365X with PIIX chipset? Grant Coady
2006-05-28 12:06 ` Mark Lord [this message]
2006-05-28 22:57 ` Grant Coady
2006-06-01 13:50 ` Alan Cox
2006-06-01 15:55 ` Ondrej Zary
2006-06-02 7:17 ` Grant Coady
2006-06-01 17:22 ` Mark Lord
2006-06-01 18:52 ` Alan Cox
2006-06-02 14:57 ` Ondrej Zary
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