Re: partially working SMP again

[David Laight <david%l8s.co.uk@localhost>]

On Sat, May 30, 2009 at 08:27:19AM +1000, matthew green wrote:
> 
> the problem is that the global mapping and the local mapping for
> this cpu need to be cache congruent.  ie, for tsutsui's case,
> with CPUINFO_VA 0xf0002000 (always), the other mappin for this
> cpu needs to be on a 512KB + 0x2000 byte alignment.  for my case
> i think it only needs 32KB + 0x2000, due to this only being
> relevant for the non-ecache systems.

Ok, so why not just ensure that you never access your own map
through the shared VA ?
Then cache conguency wouldn't matter!

        David

-- 
David Laight: david%l8s.co.uk@localhost