On Sun, Jun 23, 2019 at 08:41:51PM +1000, Nicholas Piggin wrote: > This makes it clear to the caller that it can only be used on POWER9 > and later CPUs. > -#define PPC_INVALIDATE_ERAT PPC_SLBIA(7) > +#define PPC_ARCH_300_INVALIDATE_ERAT PPC_SLBIA(7) The architecture version is 3.0 (or 3.0B), not "300". This will work on implementations of later architecture versions as well, so maybe the name isn't so great anyway? Segher
