On Mon, 2014-05-12 at 16:00 +1000, David Gibson wrote: > I'm not all that impressed by this translation code - in particular > the per-bus-type hooks don't make sense to me. AFAIK the > interpretation of ranges is not bus specific. I think it will also > fail in some cases with #address-cells > 2, which is unfortunate. > > I'm about to post my own implementation of address translation.
Well, I came up with the original code which did per-bus type hooks. There are cases where it is needed. Take PCI. The top word can contain completely unrelated stuff such as the "prefetchable" attribute. It's perfectly legal to put a prefetchable BAR under a non-prefetchable bridge window. However a translation scheme that doesn't know to know that bit will fail. It's not far fetched, it happens on our machines today. And that's just one of the problems I had back then... Cheers, Ben. -- To unsubscribe from this list: send the line "unsubscribe devicetree-compiler" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
