On Sat, Feb 27, 2010 at 6:05 AM, David Miller <davem@xxxxxxxxxxxxx> wrote: > From: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx> > Date: Sat, 27 Feb 2010 12:59:31 +0100 > >> Having IOMMU (even if it is only a software one, i.e. this would >> mean swiotlb for x86-32/highmem) always in place would simplify >> things greatly.. > > I agree, things would be a lot simpler. Yeah, the situation kind of sucks on the platforms that don't have any IOMMU support, since it means that the DMA API can't handle anything over 4GB properly and you need all these hacks in the block layer, networking layer, etc. It would be nice if some kind of IOMMU support could be relied upon always. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
