From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH 3/3] powerpc/64s/hash: avoid the POWER5 < DD2.1 slb invalidate workaround on POWER8/9
Date: Wed, 29 Aug 2018 02:57:31 +1000 [thread overview]
Message-ID: <20180828165731.24320-4-npiggin@gmail.com> (raw)
In-Reply-To: <20180828165731.24320-1-npiggin@gmail.com>
I only have POWER8/9 to test, so just remove it for those.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/kernel/entry_64.S | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 2206912ea4f0..77a888bfcb53 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -672,7 +672,9 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_1T_SEGMENT)
isync
slbie r6
+BEGIN_FTR_SECTION
slbie r6 /* Workaround POWER5 < DD2.1 issue */
+END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
slbmte r7,r0
isync
2:
--
2.18.0
prev parent reply other threads:[~2018-08-28 16:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-28 16:57 [PATCH 0/3] misc SLB patches Nicholas Piggin
2018-08-28 16:57 ` [PATCH 1/3] powerpc/64s/hash: Fix stab_rr off by one initialization Nicholas Piggin
2018-08-28 16:57 ` [PATCH 2/3] powerpc/64s/hash: Use POWER9 SLBIA IH=3 variant in switch_mm Nicholas Piggin
2018-08-28 16:57 ` Nicholas Piggin [this message]
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