
* make map and alloc take 'flags' rather than 'cacheable,' for more flexibility. * rename BUS_BARRIER_* to BUS_SPACE_BARRIER_*, for consistency. * rename bus_space_copy_* to bus_space_copy_region_* and make their defns match the updated spec. Backward compatibility is provided by defining __BUS_SPACE_COMPAT_OLDDEFS, which is currently defined by default.