On Tuesday, June 26, 2007 10:31:57 Andi Kleen wrote: > > >>(and I think it mostly already doesn't even without that) > > > > > >It uses /sys/bus/pci/* which is not any better as seen from the > > > IOMMU. > > > > > >Any interface will need to be explicit because user space needs to > > > know which > > >DMA addresses to put into the hardware. It's not enough to just > > >transparently > > >translate the mappings. > > > > that's what DRM is used for nowadays... > > But DRM does support much less hardware than the X server?
Yeah, the number of DRM drivers is relatively small compared to X or fbdev, but for simple DMA they're fairly easy to write. > Perhaps we just need an ioctl where an X server can switch this. Switch what? Turn on or off transparent translation? Jesse - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
