From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH 2/2] powerpc/64s/radix: Explicitly flush ERAT with local LPID invalidation
Date: Mon, 27 Aug 2018 13:03:02 +1000 [thread overview]
Message-ID: <20180827030302.17541-3-npiggin@gmail.com> (raw)
In-Reply-To: <20180827030302.17541-1-npiggin@gmail.com>
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>
---
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 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");
}
--
2.18.0
next prev parent reply other threads:[~2018-08-27 3:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-27 3:03 [PATCH 0/2] ERAT invalidation fixes Nicholas Piggin
2018-08-27 3:03 ` [PATCH 1/2] powerpc/64s/hash: do not use PPC_INVALIDATE_ERAT on CPUs before POWER9 Nicholas Piggin
2018-10-15 4:00 ` [1/2] " Michael Ellerman
2018-08-27 3:03 ` Nicholas Piggin [this message]
2018-08-27 8:16 ` [PATCH 2/2] powerpc/64s/radix: Explicitly flush ERAT with local LPID invalidation Benjamin Herrenschmidt
2018-08-27 9:11 ` Nicholas Piggin
2018-08-27 9:17 ` Nicholas Piggin
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