Adding cache shape info to powerpc

[Benjamin Herrenschmidt]

On Wed, 2016-08-17 at 14:20 +0200, Torvald Riegel wrote:
> > If the old format was in mainline at any point (or in a vendor kernel, 
> > but let's hope vendors don't do this anymore), you need to pick new numbers.
> 
> If we need new ones anyway, is there any reason for having to pack this
> information?  Why can't we have separate define's for the individual
> properties describing the shape?

That would be something like 12 new entries, a bit big no ?

Cheers,
Ben.