eeh@netbsd.org writes:

> After going through the specification for bus_space_barrier()
> for the fifth time, and finding it lacking, I'd like to propose
> the following enhancement:

I don't particularly object to this, but given the fact (noted again
on the mailing lists recently) that all the bus_space_{read,write}
operations have implicit barriers to deal with non-barrier-aware
drivers, this seems like misplaced effort...

        - Nathan