From 053c5a753e951c5dd1729af2cf4d8107f2e6e09b Mon Sep 17 00:00:00 2001
From: Nicholas Piggin <npiggin@gmail.com>
Date: Mon, 27 Aug 2018 13:03:02 +1000
Subject: powerpc/64s/radix: Explicitly flush ERAT with local LPID invalidation
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>
---
arch/powerpc/mm/tlb-radix.c | 1 +
1 file changed, 1 insertion(+)
(limited to 'arch/powerpc/mm')
diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
index fef3e1eb3a19..4e798f33c530 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");
}
--
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