Re: consistent_alloc() on 82xx

On Thu, 09 Jun 2005 09:15:17 +0300
Pantelis Antoniou [off-list ref] wrote:

Dan Malek wrote:

quoted

On Jun 8, 2005, at 5:29 AM, Alex Zeffertt wrote:

quoted

Does anybody know why it isn't built for 6xx cores?

Because 6xx cores are cache coherent and there shouldn't
be any need for "uncached" memory regions.

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I'm working on the ATM driver and it seems that certain external

memory> areas accessed by the PQII CPM by-pass the cache.


That's news to me, and I've written lots of CPM drivers, including
ATM. Do you have a specific example?

I may also need consistent_alloc for some testing reasons Dan. :)

quoted

Thanks.

    -- Dan

If I build arch/ppc/mm/cachemap.c will it work for 82xx? Any reason
not to?

Hi Pantelis,

I tried this in an attempt to work around my problem of the CPM
bypassing the cache but it didn't work for me....

Alex