Michael Neuling <mi...@neuling.org> writes:
> diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
> index bda8c43be7..4a19cdd8a0 100644
> --- a/arch/powerpc/mm/tlb-radix.c
> +++ b/arch/powerpc/mm/tlb-radix.c
> @@ -50,6 +50,9 @@ static inline void _tlbiel_pid(unsigned long pid, unsigned
> long ric)
> for (set = 0; set < POWER9_TLB_SETS_RADIX ; set++) {
> __tlbiel_pid(pid, set, ric);
> }
> + if (cpu_has_feature(CPU_FTR_POWER9_DD1))
> + asm volatile(PPC_SLBIA(0x7)
> + : : :"memory");
Ah of course I'll use slbia to invalidate the ERAT.
How about we do:
#define PPC_INVALIDATE_ERAT PPC_SLBIA(0x7)
Or bike-shed me a name for it.
cheers
