[PATCH 4/6] arm64: topology: add MPIDR-based detection

Mark Brown broonie at kernel.org
Mon May 19 11:39:53 PDT 2014

On Mon, May 19, 2014 at 06:15:11PM +0100, Lorenzo Pieralisi wrote:
> On Mon, May 19, 2014 at 05:12:17PM +0100, Mark Brown wrote:

> > This would leave the MPIDR support worse than DT which seems retrograde
> > especially given that it's so simple to differentiate the clusters.  The
> > only issue with that appears to be about precisely how to make up the
> > cluster numbers which is a cosmetic one.

> That's the reason why I said you should not bother. If you want to use
> 4 affinity levels, I do not see the point in using the hash for that though,
> since all we need is a unique id which can be easily created without
> resorting to hashing.

Right, OK.  I personally wouldn't have used anything non-trivial either
but equally well I didn't see any strong reason not to do it either and
it's what Zi Shen sent.  I suspect this is based on the review comments
the first time around.
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