On Jan 11, 2006, at 2:20 AM, Wolfgang Solfrank wrote:

> To me it looks like a driver is either written with explicit barriers
> in mind, or not.  If it is, we can have some appropriate define before
> including <machine/bus.h> and have the bus_space methods leave out the
> implicit barriers.  And document that anyone using that driver (i.e.
> bus specific frontends) have to map the neccessary regions with the
> appropriate flags.

Personally, I would like to move away from implementation being  
included in .h files, so a #define would not necessarily help in that  
case.

-- thorpej