On Wed, 6 May 2009 11:41:12 -0600 "Wilcox, Matthew R" <matthew.r.wilcox@xxxxxxxxx> wrote: > I think PowerPC's IO_SPACE_LIMIT is defined incorrectly. > > On 64-bit, it's currently set to 0xffff'ffff'ffff'ffff. This can't > possibly work, there's no way for the PCI bus to transmit 64-bit > IO-port addresses. It should probably be defined to > > 0xffffffffU TOP POSTER! But yeah on a bus level it clearly needs to be limited to 32 bits, but ISTR that some arches use the high resource bits for tracking I/O resources on a systemwide basis (too lazy to look atm). So either we need to split the definition between bus & resource usage, or add a cast here... -- Jesse Barnes, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
