Grant Grundler wrote: > 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/ > It still gives me a bus address just fine. Actually when the gpiohsd is dmaing into another card I don't use it. I misspoke. The VMIC cards library API gives me its memory's bus address. Mark -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
