consistent_alloc() on 82xx
Alex Zeffertt
ajz at cambridgebroadband.com
Thu Jun 9 19:06:40 EST 2005
On Thu, 09 Jun 2005 09:15:17 +0300
Pantelis Antoniou <panto at intracom.gr> wrote:
> Dan Malek wrote:
> >
> > On Jun 8, 2005, at 5:29 AM, Alex Zeffertt wrote:
> >
> >> 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.
> >
> >> 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. :)
>
> > 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
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