From 96ed1fe511a8b4948e53f3bad431d8737e8f231f Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Fri, 18 Nov 2016 14:08:56 +1100 Subject: powerpc/mm/radix: Invalidate ERAT on tlbiel for POWER9 DD1 On POWER9 DD1, when we do a local TLB invalidate we also need to explicitly invalidate the ERAT. Signed-off-by: Michael Neuling Signed-off-by: Michael Ellerman --- arch/powerpc/mm/tlb-radix.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/powerpc/mm') diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c index bda8c43be78a..3493cf4e0452 100644 --- a/arch/powerpc/mm/tlb-radix.c +++ b/arch/powerpc/mm/tlb-radix.c @@ -50,6 +50,8 @@ 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_INVALIDATE_ERAT : : :"memory"); return; } @@ -83,6 +85,8 @@ static inline void _tlbiel_va(unsigned long va, unsigned long pid, asm volatile(PPC_TLBIEL(%0, %4, %3, %2, %1) : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory"); asm volatile("ptesync": : :"memory"); + if (cpu_has_feature(CPU_FTR_POWER9_DD1)) + asm volatile(PPC_INVALIDATE_ERAT : : :"memory"); } static inline void _tlbie_va(unsigned long va, unsigned long pid, -- cgit v1.2.3-58-ga151