[openrisc] Caches lock and invalidate

[javier@teisa.unican.es]

Hi: 

   I hava a question about the cache block lock and cache invalidate.
Suppose you have a cache memory with 2 ways. If you perform a cache
lock or invalidate of a effective address you must read first if that
efective address is in the cache. If the block is in the cache you
lock/invalidate it. But when the EA is not in cache memory what
happens? The block lock is discarded or a miss occurs and the block is
prefetched to cache memory and then locked.

  Thanks

--
To unsubscribe from openrisc mailing list please visit http://www.opencores.org/mailinglists.shtml