[PATCH] fsldma: add support to 36-bit physical address
galak at kernel.crashing.org
Wed Sep 22 15:41:43 EST 2010
On Sep 21, 2010, at 5:34 PM, Timur Tabi wrote:
> On Tue, Sep 21, 2010 at 5:17 PM, Scott Wood <scottwood at freescale.com> wrote:
>> 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. So it appears that the patch is valid, at
> least in theory. I would like to see some testing of it, but I
> realize that may be too difficult. There's no easy way to force an
> allocation above 4GB.
I think the patch is pretty safe w/o testing. However I agree we need a better solution to testing 36-bit addressing.
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