[PATCH v2] powerpc: A new cache geometry aux vectors

[Benjamin Herrenschmidt]

On Fri, 2017-03-03 at 07:51 -0600, Paul Clarke wrote:
> > On P9 it all comes from the device tree so if that's wrong the AUX
> > vectors will definitely be wrong.
> 
> mambo-p9 is still falling victim to the device-tree, but "working":
> --
> getauxval(AT_L1I_CACHEGEOMETRY) = 0x0000000000000080
> AT_L1I_CACHEGEOMETRY: associativity 0; line size 128
> getauxval(AT_L1D_CACHEGEOMETRY) = 0x0000000000000080
> AT_L1D_CACHEGEOMETRY: associativity 0; line size 128
> getauxval(AT_L2_CACHEGEOMETRY) = 0x0000000000000000
> getauxval(AT_L2_CACHEGEOMETRY) = 0x0000000000000000
> --

The mambo device-tree comes from the mambo own internals afaik.

On real HW, the values come from HDAT. If they are wrong we need
the HostBoot guys to fix them.

Cheers,
Ben.