Re: RFC: New bus_space routine: bus_space_sync

[Mouse <mouse%Rodents-Montreal.ORG@localhost>]

>>> I can't see how a write barrier that doesn't ensure the write has
>>> reached the target (main or device memory) can be usefull.

>> [...].  But barriers that have nothing to do with write completion
>> to the target can still be useful.  [...]

> That's not what the manpage documenting BUS_SPACE_BARRIER_SYNC says.
> Read the manpage.

Oh, what I wrote wasn't about BUS_SPACE_BARRIER_SYNC specifically.  It
was about barriers more generally, in response to "I can't see how a
write barrier that doesn't ensure the write has reached the target
(main or device memory) can be usefull".

/~\ The ASCII                             Mouse
\ / Ribbon Campaign
 X  Against HTML                mouse%rodents-montreal.org@localhost
/ \ Email!           7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B