On Fri, Dec 19, 2008 at 12:42 PM, Kyle McMartin <kyle@xxxxxxxxxxxxx> wrote: > Or rather not, my thinking being that context << 1 might end up being > 33-bits, but I forgot we clip spaceids to the width of the protection > registers, so this can't happen. Yes, that is correct, we only use 17-bit space ids on PA 2.0 (18-bits implemented) and 14-bit space ids on PA 1.1 (15-bits implemented on average). I assume we reserve the last bit for the rightmost WD-bit. Therefore context << 1 yields at most 18-bits. c. -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html