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RE: MPC8260 cache patch
- From: Robin Farine <robin dot farine at acn-group dot ch>
- To: eCos patches ml <ecos-patches at sources dot redhat dot com>
- Date: 25 Mar 2003 16:23:04 +0100
- Subject: RE: MPC8260 cache patch
- References: <NFBBJAJICAKJPMMKDAGBEEGLDNAA.wpd@delcomsys.com>
On Tue, 2003-03-25 at 15:56, Patrick Doyle wrote:
> I assume that there is a 'HAL_DCACHE_SYNC_REGION()' type of macro to flush
> just the portion of memory that needs to be synchronized. In the other
> direction, I would expect the snooping hardware in the cache to handle
> received packets.
Alternatively, if the CPU caches virtual addresses, you could map the
first 16Kb of physical memory to a virtual region exclusively reserved
to HAL_DCACHE_SYNC().
--
rnf