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* [PATCH v4 0/9] Speedup mremap on ppc64
@ 2021-04-14  8:59 Aneesh Kumar K.V
  2021-04-14  8:59 ` [PATCH v4 1/9] selftest/mremap_test: Update the test to handle pagesize other than 4K Aneesh Kumar K.V
                   ` (8 more replies)
  0 siblings, 9 replies; 15+ messages in thread
From: Aneesh Kumar K.V @ 2021-04-14  8:59 UTC (permalink / raw)
  To: linux-mm, akpm; +Cc: kaleshsingh, npiggin, Aneesh Kumar K.V, joel, linuxppc-dev

Hi,

This patchset enables MOVE_PMD/MOVE_PUD support on power. This requires
the platform to support updating higher-level page tables without
updating page table entries. This also needs to invalidate the Page Walk
Cache on architecture supporting the same.

Changes from v3:
* Fix build error reported by kernel test robot
* Address review feedback.

Changes from v2:
* switch from using mmu_gather to flush_pte_tlb_pwc_range() 

Changes from v1:
* Rebase to recent upstream
* Fix build issues with tlb_gather_mmu changes


Aneesh Kumar K.V (9):
  selftest/mremap_test: Update the test to handle pagesize other than 4K
  selftest/mremap_test: Avoid crash with static build
  mm/mremap: Use pmd/pud_poplulate to update page table entries
  powerpc/mm/book3s64: Fix possible build error
  powerpc/mm/book3s64: Update tlb flush routines to take a page walk
    cache flush argument
  mm/mremap: Use range flush that does TLB and page walk cache flush
  mm/mremap: Move TLB flush outside page table lock
  mm/mremap: Allow arch runtime override
  powerpc/mm: Enable move pmd/pud

 .../include/asm/book3s/64/tlbflush-radix.h    |  19 +--
 arch/powerpc/include/asm/book3s/64/tlbflush.h |  30 ++++-
 arch/powerpc/include/asm/tlb.h                |   6 +
 arch/powerpc/mm/book3s64/radix_hugetlbpage.c  |   4 +-
 arch/powerpc/mm/book3s64/radix_tlb.c          |  55 ++++----
 arch/powerpc/platforms/Kconfig.cputype        |   2 +
 mm/mremap.c                                   |  41 ++++--
 tools/testing/selftests/vm/mremap_test.c      | 118 ++++++++++--------
 8 files changed, 172 insertions(+), 103 deletions(-)

-- 
2.30.2


^ permalink raw reply	[flat|nested] 15+ messages in thread

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Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-14  8:59 [PATCH v4 0/9] Speedup mremap on ppc64 Aneesh Kumar K.V
2021-04-14  8:59 ` [PATCH v4 1/9] selftest/mremap_test: Update the test to handle pagesize other than 4K Aneesh Kumar K.V
2021-04-14  8:59 ` [PATCH v4 2/9] selftest/mremap_test: Avoid crash with static build Aneesh Kumar K.V
2021-04-14  8:59 ` [PATCH v4 3/9] mm/mremap: Use pmd/pud_poplulate to update page table entries Aneesh Kumar K.V
2021-04-14  8:59 ` [PATCH v4 4/9] powerpc/mm/book3s64: Fix possible build error Aneesh Kumar K.V
2021-04-20  3:43   ` Michael Ellerman
2021-04-14  8:59 ` [PATCH v4 5/9] powerpc/mm/book3s64: Update tlb flush routines to take a page walk cache flush argument Aneesh Kumar K.V
2021-04-14  8:59 ` [PATCH v4 6/9] mm/mremap: Use range flush that does TLB and page walk cache flush Aneesh Kumar K.V
2021-04-20  3:47   ` Michael Ellerman
2021-04-20  4:17     ` Aneesh Kumar K.V
2021-04-14  8:59 ` [PATCH v4 7/9] mm/mremap: Move TLB flush outside page table lock Aneesh Kumar K.V
2021-04-14  8:59 ` [PATCH v4 8/9] mm/mremap: Allow arch runtime override Aneesh Kumar K.V
2021-04-20  3:52   ` Michael Ellerman
2021-04-20  4:30     ` Aneesh Kumar K.V
2021-04-14  8:59 ` [PATCH v4 9/9] powerpc/mm: Enable move pmd/pud Aneesh Kumar K.V

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