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ERAT invalidation fixes

Nicholas Piggin linuxppc-dev 1 version In review

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  1. v1 Latest2 patches 4 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/2powerpc/64s/hash: do not use PPC_INVALIDATE_ERAT on CPUs before POWER9arch/powerpc/kernel/mce_power.c arch/powerpc/mm/hash_native_64.c+9 -21 reply
2/2powerpc/64s/radix: Explicitly flush ERAT with local LPID invalidationarch/powerpc/mm/tlb-radix.c+1 -03 replies

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Cover letter [PATCH 0/2] ERAT invalidation fixes

First one is a real bug-fix for POWER8 and earlier CPUs, second I'm not exactly sure how POWER9's ERAT behaves in this situation but it seems to match what we do in other places.

Thanks,
Nick

Nicholas Piggin (2):
powerpc/64s/hash: do not use PPC_INVALIDATE_ERAT on CPUs before POWER9 powerpc/64s/radix: Explicitly flush ERAT with local LPID invalidation

 arch/powerpc/kernel/mce_power.c  | 7 +++++++
 arch/powerpc/mm/hash_native_64.c | 4 ++--
 arch/powerpc/mm/tlb-radix.c      | 1 +
 3 files changed, 10 insertions(+), 2 deletions(-)
Signature · 1 line
2.18.0

Read the cover letter in its thread