Re: problems doing direct dma from a pci device to pci-e device

[Grant Grundler]

On Fri, Sep 11, 2009 at 04:04:00PM -0400, Mark Hounschell wrote:
> A quick readup on the IOMMU makes me think that if it does use one, that
> could certainly cause my problem. I'm using bus addresses plugged into
> page tables that live in the gpiohsd card obtained from virt2bus.

If you haven't yet, take a look at Documentation/DMA-API.txt and
DMA-mapping.txt . virt2bus has been deprecated for DMA since 2.4 releases.

grant
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/