On Jan 19, 2012, at 11:45 AM, Martin Husemann wrote: > Even if originally intended for something else, like Matt says, wouldn't it > be easier to just define two new flags for it like > > BUS_SPACE_BARRIER_WB > BUS_SPACE_BARRIER_WBINV > > and leave the rest of the API untouched?
I thought about that. My concern was if some port added those to the MD defintions but didn't update all the bus_space implementations bus_space_barrier wouldn't do anything and you wouldn't know.