Re: [PATCH v2] powerpc: A new cache geometry aux vectors
From: Benjamin Herrenschmidt <hidden>
Date: 2017-03-05 23:13:00
On Fri, 2017-03-03 at 07:51 -0600, Paul Clarke wrote:
quoted
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.