From: Nicholas Piggin <npig...@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 <npig...@gmail.com>
Signed-off-by: Nicholas Piggin <npig...@gmail.com>
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
Signed-off-by: Sasha Levin <sas...@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");
}
--
2.20.1
