From: Nicholas Piggin npiggin@gmail.com
[ Upstream commit 053c5a753e951c5dd1729af2cf4d8107f2e6e09b ]
Local radix TLB flush operations that operate on congruence classes have explicit ERAT flushes for POWER9. The process scoped LPID flush did not have a flush, so add it.
Signed-off-by: Nicholas Piggin npiggin@gmail.com Signed-off-by: Nicholas Piggin npiggin@gmail.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/mm/tlb-radix.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c index 0cddae4263f96..21441ff17b92b 100644 --- a/arch/powerpc/mm/tlb-radix.c +++ b/arch/powerpc/mm/tlb-radix.c @@ -366,6 +366,7 @@ static inline void _tlbiel_lpid_guest(unsigned long lpid, unsigned long ric) __tlbiel_lpid_guest(lpid, set, RIC_FLUSH_TLB);
asm volatile("ptesync": : :"memory"); + asm volatile(PPC_INVALIDATE_ERAT : : :"memory"); }