On Mon, Jun 12, 2006 at 10:03:46PM -0700, David Miller wrote: > From: Andi Kleen <[EMAIL PROTECTED]> > Date: Tue, 13 Jun 2006 06:54:14 +0200 > > > I guess if you use 1394 with remote DMA for other protocols (like > > video etc.) there must be some way for the subsystem to map > > the memory even on IOMMU systems. I admit I haven't dived that > > deeply into the 1394 subsystem so I don't know how that works. > > Video-1394 has it's own driver, which does a consistent DMA > allocation, and then maps that into userspace using remap_pfn_range(). > Entirely portable.
That's actually not portable to certain arm platforms, but that's a different story. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
