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Date: Thu, 23 Sep 2010 15:11:57 -0700
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Subject: Re: [PATCH] fsldma: add support to 36-bit physical address
From: Dan Williams <dan.j.williams@intel.com>
To: Kumar Gala <galak@kernel.crashing.org>
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Cc: "linux-kernel@vger.kernel.org List" <linux-kernel@vger.kernel.org>,
	Timur Tabi <timur.tabi@gmail.com>, Scott Wood <scottwood@freescale.com>,
	Dan Malek <ppc6dev@digitaldans.com>,
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On Tue, Sep 21, 2010 at 10:41 PM, Kumar Gala <galak@kernel.crashing.org> wr=
ote:
>
> On Sep 21, 2010, at 5:34 PM, Timur Tabi wrote:
>
>> On Tue, Sep 21, 2010 at 5:17 PM, Scott Wood <scottwood@freescale.com> wr=
ote:
>>
>>> It needs to be the actual device that is performing the DMA -- the
>>> platform may need to do things such as IOMMU manipulation where
>>> knowing the device matters.
>>
>> Ok, this all makes sense. =A0So it appears that the patch is valid, at
>> least in theory. =A0I would like to see some testing of it, but I
>> realize that may be too difficult. =A0There's no easy way to force an
>> allocation above 4GB.
>
> I think the patch is pretty safe w/o testing. =A0However I agree we need =
a better solution to testing 36-bit addressing.

I'll take that as an acked-by, but I'll wait for the next version of
the patch with the completed changelog before acting on it.

--
Dan