Re: [PATCH] quiet down swiotlb warnings

Rik van Riel
2007-06-01T20:21:01Z

Andi Kleen wrote:
> On Fri, Jun 01, 2007 at 01:00:49PM -0700, Andrew Vasquez wrote:
>> yes, the card can support 64bit DMA transfers. but in this case the
>> 'required' DMA mask returned from dma_get_required_mask() states that a
>> 32bit mask would suffice.
>
> That's a bug in the kernel then that needs to be fixed. Find out
> why it does that and change it. Don't fix the symptoms, fix the root cause.

The system in question only has 2GB of memory.

Why would it need to do 64 bit DMA?

--
Politics is the struggle between those who want to make their country
the best in the world, and those who believe it already is. Each group
calls the other unpatriotic.