thorpej 756aa08443 Since the RFA is allocated in a normal mbuf, as opposed to DMA-safe
memory that is explicitly mapped in a DMA-coherent manner, we must
make sure to PREREAD sync the RFA after noticing a clear "complete"
bit.  Without this, the clear bit will linger in the cache, and the
CPU will not notice when the chip updates the bit via DMA later.

From Izumi Tsutsui on port-arm32@netbsd.org.
2000-06-29 16:53:48 +00:00
2000-06-29 06:26:33 +00:00
2000-06-29 06:26:33 +00:00
2000-06-29 06:26:33 +00:00
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