On Sat, Jun 25, 2005 at 03:31:57PM -0700, Jason Thorpe wrote:
> We could add this sort of capability, I guess... but it would require  
> all of the back-ends to implement all of the bounce buffering  
> capability... and for what?  For a single broken device?

If we could lazy-implement them, I guess we'd be done with i386 and maybe
amd64 for quite some time.

Like, say, have a few __BUSDMA_HAS.... macros in ctypes.h and make drivers
that need those features #error with a good message if they are compiled on
an arch that doesn't have it.

Martin