Hi,
This patch series fixes machine check exception that we observed when using
transparent huge page along with 4k hash pte on power bare metal platform.
Patch "powerpc: mm: Use read barrier when creating real_pte" is not really
related to thp, but was added in the series because it is fixing a related
issue with 4k pte. That patch was not really needed to fix the MCE.
Changes from V1:
* Rebased to latest upstream
Aneesh Kumar K.V (8):
powerpc: thp: Add write barrier after updating the valid bit
powerpc: thp: don't recompute vsid and ssize in loop on invalidate
powerpc: thp: invalidate old 64K based hash page mapping before insert
of 4k pte
powerpc: thp: Handle combo pages in invalidate
powerpc: thp: inalidate with vpn in loop
powerpc: thp: use ACCESS_ONCE when loading pmdp
powerpc: mm: Use read barrier when creating real_pte
powerpc: thp: Add tracepoints to track hugepage invalidate
arch/powerpc/include/asm/machdep.h | 6 +--
arch/powerpc/include/asm/pgtable-ppc64.h | 2 +-
arch/powerpc/include/asm/pte-hash64-64k.h | 30 +++++++++--
arch/powerpc/mm/hash_native_64.c | 40 ++++----------
arch/powerpc/mm/hugepage-hash64.c | 88 +++++++++++++++++++++++++++----
arch/powerpc/mm/pgtable_64.c | 44 ++++++++++------
arch/powerpc/mm/tlb_hash64.c | 6 ++-
arch/powerpc/platforms/pseries/lpar.c | 20 +++----
include/trace/events/thp.h | 88 +++++++++++++++++++++++++++++++
9 files changed, 245 insertions(+), 79 deletions(-)
create mode 100644 include/trace/events/thp.h
--
1.9.1
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