From: "Kathy Frazier" <kfrazier@mdc-dayton.com>
To: "Roland Dreier" <roland@topspin.com>
Cc: <linux-kernel@vger.kernel.org>
Subject: RE: DMA not supported with Intel ICH4 I/O controller?
Date: Tue, 29 Jul 2003 08:01:53 -0500 [thread overview]
Message-ID: <PMEMILJKPKGMMELCJCIGKEKNCDAA.kfrazier@mdc-dayton.com> (raw)
In-Reply-To: <52brvegyrf.fsf@topspin.com>
Roland,
Thanks for your response!
>It sounds like your board is acting as a PCI bus master. This is
>completely different from DMA for the IDE controller. External PCI
That's correct, we are a PCI bus master device.
>The BIOS on the P4PE may be setting
>your device up differently from the 815E motherboard. Your device
>might be confusing the BIOS on the P4PE so that the IRQ routing
>information (eg in ACPI tables) is screwed up. And so on.
With respect to the IRQ routing: If the routing was messed up, wouldn't
this mean that no IRQs would get through on that device? We are getting
some . . .
>However, I have not heard of any generic problems with external PCI
>bus masters and the ICH4.
. . . thanks for the feedback.
Regards,
Kathy
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next prev parent reply other threads:[~2003-07-29 11:50 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-28 19:44 DMA not supported with Intel ICH4 I/O controller? Kathy Frazier
2003-07-28 18:45 ` Mike Dresser
2003-07-28 20:40 ` Kathy Frazier
2003-07-28 19:32 ` Mike Dresser
2003-07-28 21:02 ` Kathy Frazier
2003-07-28 20:03 ` Mike Dresser
2003-07-28 20:19 ` Alan Cox
2003-07-28 22:02 ` Kathy Frazier
2003-07-28 21:21 ` Terje Kvernes
2003-07-29 14:45 ` Kathy Frazier
2003-07-29 11:01 ` Alan Cox
2003-07-29 14:07 ` Mike Dresser
2003-07-28 20:52 ` Roland Dreier
2003-07-29 13:01 ` Kathy Frazier [this message]
[not found] <1059443191.3861.48.camel@cube>
2003-07-29 13:14 ` Kathy Frazier
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