linux-kernel - Re: Bad DMA from Marvell 9230

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Date:	Fri, 30 May 2014 09:58:22 -0400
From:	Jérôme Carretero <cJ-ko@...gloub.eu>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Tejun Heo <tj@...nel.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	linux-ide@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Alex Williamson <alex.williamson@...hat.com>
Subject: Re: Bad DMA from Marvell 9230

On Fri, 30 May 2014 20:37:58 +1000
Benjamin Herrenschmidt <benh@...nel.crashing.org> wrote:

> We've switched to a 9235 instead which seems to work fine.

Weird (I hadn't seen that you reported the 9235 working...), I have
IOMMU problems with a 9235...

What system are you running it on (when you say "power box", is it a
beefy x86 computer or literally a PowerPC)?
For me, AMD 990FX chipset, latest master linux.
My board works fine* on another non-IOMMU system.

-- 
Jérôme

* with issues with port multipliers

Link to Benjamin's first message: https://lkml.org/lkml/2014/3/27/43
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