From: "Aneesh Kumar K.V" <aneesh.kumar@linux•ibm.com>
To: linux-mm@kvack•org, akpm@linux-foundation•org
Cc: peterz@infradead•org, kaleshsingh@google•com,
"Aneesh Kumar K.V" <aneesh.kumar@linux•ibm.com>,
joel@joelfernandes•org, linuxppc-dev@lists•ozlabs.org
Subject: [PATCH v2 0/6] Speedup mremap on ppc64
Date: Mon, 15 Mar 2021 17:08:18 +0530 [thread overview]
Message-ID: <20210315113824.270796-1-aneesh.kumar@linux.ibm.com> (raw)
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.
The patchset does that by switching the page table update to use mmu gather
interface instead of direct tlb flush. mmu gather allows the architecture
to manage page walk cache invalidate separately.
Changes from V1:
* Rebase to recent upstream
* Fix build issues with tlb_gather_mmu changes
Aneesh Kumar K.V (6):
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
mm/mremap: Use mmu gather interface instead of flush_tlb_range
mm/mremap: Allow arch runtime override
powerpc/mm: Enable move pmd/pud
arch/arc/include/asm/tlb.h | 5 +
arch/arm64/include/asm/tlb.h | 6 ++
arch/powerpc/include/asm/tlb.h | 6 ++
arch/powerpc/platforms/Kconfig.cputype | 2 +
arch/x86/include/asm/tlb.h | 5 +
mm/mremap.c | 54 +++++++++--
tools/testing/selftests/vm/mremap_test.c | 118 ++++++++++++-----------
7 files changed, 133 insertions(+), 63 deletions(-)
--
2.29.2
next reply other threads:[~2021-03-15 11:42 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-15 11:38 Aneesh Kumar K.V [this message]
2021-03-15 11:38 ` [PATCH v2 1/6] selftest/mremap_test: Update the test to handle pagesize other than 4K Aneesh Kumar K.V
2021-03-15 11:38 ` [PATCH v2 2/6] selftest/mremap_test: Avoid crash with static build Aneesh Kumar K.V
2021-03-15 11:38 ` [PATCH v2 3/6] mm/mremap: Use pmd/pud_poplulate to update page table entries Aneesh Kumar K.V
2021-03-22 14:42 ` [mm/mremap] c10e9d3441: Bad_pagetable:#[##] kernel test robot
2021-03-15 11:38 ` [PATCH v2 4/6] mm/mremap: Use mmu gather interface instead of flush_tlb_range Aneesh Kumar K.V
2021-03-18 8:22 ` kernel test robot
2021-03-18 8:34 ` Nicholas Piggin
2021-03-15 11:38 ` [PATCH v2 5/6] mm/mremap: Allow arch runtime override Aneesh Kumar K.V
2021-03-15 11:38 ` [PATCH v2 6/6] powerpc/mm: Enable move pmd/pud Aneesh Kumar K.V
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