From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> To: linux-mm@kvack.org, akpm@linux-foundation.org, mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org, npiggin@gmail.com, christophe.leroy@csgroup.eu Cc: Oscar Salvador <osalvador@suse.de>, Mike Kravetz <mike.kravetz@oracle.com>, Dan Williams <dan.j.williams@intel.com>, Joao Martins <joao.m.martins@oracle.com>, Catalin Marinas <catalin.marinas@arm.com>, Muchun Song <muchun.song@linux.dev>, Will Deacon <will@kernel.org>, "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Subject: [PATCH v2 00/16] Add support for DAX vmemmap optimization for ppc64 Date: Fri, 16 Jun 2023 16:38:10 +0530 [thread overview] Message-ID: <20230616110826.344417-1-aneesh.kumar@linux.ibm.com> (raw) This patch series implements changes required to support DAX vmemmap optimization for ppc64. The vmemmap optimization is only enabled with radix MMU translation and 1GB PUD mapping with 64K page size. The patch series also split hugetlb vmemmap optimization as a separate Kconfig variable so that architectures can enable DAX vmemmap optimization without enabling hugetlb vmemmap optimization. This should enable architectures like arm64 to enable DAX vmemmap optimization while they can't enable hugetlb vmemmap optimization. More details of the same are in patch "mm/vmemmap optimization: Split hugetlb and devdax vmemmap optimization" Changes from V1: * Fix make htmldocs warning * Fix vmemmap allocation bugs with different alignment values. * Correctly check for section validity to before we free vmemmap area Aneesh Kumar K.V (16): powerpc/mm/book3s64: Use pmdp_ptep helper instead of typecasting. powerpc/book3s64/mm: mmu_vmemmap_psize is used by radix powerpc/book3s64/mm: Fix DirectMap stats in /proc/meminfo powerpc/book3s64/mm: Use PAGE_KERNEL instead of opencoding powerpc/mm/dax: Fix the condition when checking if altmap vmemap can cross-boundary mm/hugepage pud: Allow arch-specific helper function to check huge page pud support mm: Change pudp_huge_get_and_clear_full take vm_area_struct as arg mm/vmemmap: Improve vmemmap_can_optimize and allow architectures to override mm/vmemmap: Allow architectures to override how vmemmap optimization works mm: Add __HAVE_ARCH_PUD_SAME similar to __HAVE_ARCH_P4D_SAME mm/huge pud: Use transparent huge pud helpers only with CONFIG_TRANSPARENT_HUGEPAGE mm/vmemmap optimization: Split hugetlb and devdax vmemmap optimization powerpc/book3s64/mm: Enable transparent pud hugepage powerpc/book3s64/vmemmap: Switch radix to use a different vmemmap handling function powerpc/book3s64/radix: Add support for vmemmap optimization for radix powerpc/book3s64/radix: Remove mmu_vmemmap_psize Documentation/mm/vmemmap_dedup.rst | 1 + Documentation/powerpc/index.rst | 1 + Documentation/powerpc/vmemmap_dedup.rst | 101 +++ arch/loongarch/Kconfig | 2 +- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/book3s/64/pgtable.h | 156 ++++- arch/powerpc/include/asm/book3s/64/radix.h | 47 ++ .../include/asm/book3s/64/tlbflush-radix.h | 2 + arch/powerpc/include/asm/book3s/64/tlbflush.h | 8 + arch/powerpc/include/asm/pgtable.h | 3 + arch/powerpc/mm/book3s64/pgtable.c | 78 +++ arch/powerpc/mm/book3s64/radix_pgtable.c | 577 ++++++++++++++++-- arch/powerpc/mm/book3s64/radix_tlb.c | 7 + arch/powerpc/mm/init_64.c | 39 +- arch/powerpc/platforms/Kconfig.cputype | 1 + arch/riscv/Kconfig | 2 +- arch/x86/Kconfig | 3 +- drivers/nvdimm/pfn_devs.c | 2 +- fs/Kconfig | 2 +- include/linux/mm.h | 32 +- include/linux/pgtable.h | 11 +- include/trace/events/thp.h | 17 + mm/Kconfig | 5 +- mm/debug_vm_pgtable.c | 2 +- mm/huge_memory.c | 2 +- mm/mm_init.c | 2 +- mm/mremap.c | 2 +- mm/sparse-vmemmap.c | 3 + 28 files changed, 1032 insertions(+), 77 deletions(-) create mode 100644 Documentation/powerpc/vmemmap_dedup.rst -- 2.40.1
WARNING: multiple messages have this Message-ID (diff)
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> To: linux-mm@kvack.org, akpm@linux-foundation.org, mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org, npiggin@gmail.com, christophe.leroy@csgroup.eu Cc: Catalin Marinas <catalin.marinas@arm.com>, Muchun Song <muchun.song@linux.dev>, "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>, Dan Williams <dan.j.williams@intel.com>, Oscar Salvador <osalvador@suse.de>, Will Deacon <will@kernel.org>, Joao Martins <joao.m.martins@oracle.com>, Mike Kravetz <mike.kravetz@oracle.com> Subject: [PATCH v2 00/16] Add support for DAX vmemmap optimization for ppc64 Date: Fri, 16 Jun 2023 16:38:10 +0530 [thread overview] Message-ID: <20230616110826.344417-1-aneesh.kumar@linux.ibm.com> (raw) This patch series implements changes required to support DAX vmemmap optimization for ppc64. The vmemmap optimization is only enabled with radix MMU translation and 1GB PUD mapping with 64K page size. The patch series also split hugetlb vmemmap optimization as a separate Kconfig variable so that architectures can enable DAX vmemmap optimization without enabling hugetlb vmemmap optimization. This should enable architectures like arm64 to enable DAX vmemmap optimization while they can't enable hugetlb vmemmap optimization. More details of the same are in patch "mm/vmemmap optimization: Split hugetlb and devdax vmemmap optimization" Changes from V1: * Fix make htmldocs warning * Fix vmemmap allocation bugs with different alignment values. * Correctly check for section validity to before we free vmemmap area Aneesh Kumar K.V (16): powerpc/mm/book3s64: Use pmdp_ptep helper instead of typecasting. powerpc/book3s64/mm: mmu_vmemmap_psize is used by radix powerpc/book3s64/mm: Fix DirectMap stats in /proc/meminfo powerpc/book3s64/mm: Use PAGE_KERNEL instead of opencoding powerpc/mm/dax: Fix the condition when checking if altmap vmemap can cross-boundary mm/hugepage pud: Allow arch-specific helper function to check huge page pud support mm: Change pudp_huge_get_and_clear_full take vm_area_struct as arg mm/vmemmap: Improve vmemmap_can_optimize and allow architectures to override mm/vmemmap: Allow architectures to override how vmemmap optimization works mm: Add __HAVE_ARCH_PUD_SAME similar to __HAVE_ARCH_P4D_SAME mm/huge pud: Use transparent huge pud helpers only with CONFIG_TRANSPARENT_HUGEPAGE mm/vmemmap optimization: Split hugetlb and devdax vmemmap optimization powerpc/book3s64/mm: Enable transparent pud hugepage powerpc/book3s64/vmemmap: Switch radix to use a different vmemmap handling function powerpc/book3s64/radix: Add support for vmemmap optimization for radix powerpc/book3s64/radix: Remove mmu_vmemmap_psize Documentation/mm/vmemmap_dedup.rst | 1 + Documentation/powerpc/index.rst | 1 + Documentation/powerpc/vmemmap_dedup.rst | 101 +++ arch/loongarch/Kconfig | 2 +- arch/powerpc/Kconfig | 1 + arch/powerpc/include/asm/book3s/64/pgtable.h | 156 ++++- arch/powerpc/include/asm/book3s/64/radix.h | 47 ++ .../include/asm/book3s/64/tlbflush-radix.h | 2 + arch/powerpc/include/asm/book3s/64/tlbflush.h | 8 + arch/powerpc/include/asm/pgtable.h | 3 + arch/powerpc/mm/book3s64/pgtable.c | 78 +++ arch/powerpc/mm/book3s64/radix_pgtable.c | 577 ++++++++++++++++-- arch/powerpc/mm/book3s64/radix_tlb.c | 7 + arch/powerpc/mm/init_64.c | 39 +- arch/powerpc/platforms/Kconfig.cputype | 1 + arch/riscv/Kconfig | 2 +- arch/x86/Kconfig | 3 +- drivers/nvdimm/pfn_devs.c | 2 +- fs/Kconfig | 2 +- include/linux/mm.h | 32 +- include/linux/pgtable.h | 11 +- include/trace/events/thp.h | 17 + mm/Kconfig | 5 +- mm/debug_vm_pgtable.c | 2 +- mm/huge_memory.c | 2 +- mm/mm_init.c | 2 +- mm/mremap.c | 2 +- mm/sparse-vmemmap.c | 3 + 28 files changed, 1032 insertions(+), 77 deletions(-) create mode 100644 Documentation/powerpc/vmemmap_dedup.rst -- 2.40.1
next reply other threads:[~2023-06-16 11:09 UTC|newest] Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-06-16 11:08 Aneesh Kumar K.V [this message] 2023-06-16 11:08 ` [PATCH v2 00/16] Add support for DAX vmemmap optimization for ppc64 Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 01/16] powerpc/mm/book3s64: Use pmdp_ptep helper instead of typecasting Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 02/16] powerpc/book3s64/mm: mmu_vmemmap_psize is used by radix Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 03/16] powerpc/book3s64/mm: Fix DirectMap stats in /proc/meminfo Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 04/16] powerpc/book3s64/mm: Use PAGE_KERNEL instead of opencoding Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 05/16] powerpc/mm/dax: Fix the condition when checking if altmap vmemap can cross-boundary Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 06/16] mm/hugepage pud: Allow arch-specific helper function to check huge page pud support Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 07/16] mm: Change pudp_huge_get_and_clear_full take vm_area_struct as arg Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 08/16] mm/vmemmap: Improve vmemmap_can_optimize and allow architectures to override Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-20 11:53 ` Joao Martins 2023-06-20 11:53 ` Joao Martins 2023-06-20 14:29 ` Aneesh Kumar K.V 2023-06-20 14:29 ` Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 09/16] mm/vmemmap: Allow architectures to override how vmemmap optimization works Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 10/16] mm: Add __HAVE_ARCH_PUD_SAME similar to __HAVE_ARCH_P4D_SAME Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 11/16] mm/huge pud: Use transparent huge pud helpers only with CONFIG_TRANSPARENT_HUGEPAGE Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 12/16] mm/vmemmap optimization: Split hugetlb and devdax vmemmap optimization Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-28 1:09 ` Ritesh Harjani 2023-06-28 1:09 ` Ritesh Harjani 2023-06-28 3:01 ` Aneesh Kumar K V 2023-06-28 3:01 ` Aneesh Kumar K V 2023-06-16 11:08 ` [PATCH v2 13/16] powerpc/book3s64/mm: Enable transparent pud hugepage Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-28 1:23 ` Ritesh Harjani 2023-06-28 1:23 ` Ritesh Harjani 2023-06-28 3:32 ` Aneesh Kumar K V 2023-06-28 3:32 ` Aneesh Kumar K V 2023-06-16 11:08 ` [PATCH v2 14/16] powerpc/book3s64/vmemmap: Switch radix to use a different vmemmap handling function Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-28 1:33 ` Ritesh Harjani 2023-06-28 1:33 ` Ritesh Harjani 2023-06-28 3:37 ` Aneesh Kumar K V 2023-06-28 3:37 ` Aneesh Kumar K V 2023-06-16 11:08 ` [PATCH v2 15/16] powerpc/book3s64/radix: Add support for vmemmap optimization for radix Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-16 11:08 ` [PATCH v2 16/16] powerpc/book3s64/radix: Remove mmu_vmemmap_psize Aneesh Kumar K.V 2023-06-16 11:08 ` Aneesh Kumar K.V 2023-06-18 11:54 ` [PATCH v2 00/16] Add support for DAX vmemmap optimization for ppc64 Sachin Sant 2023-06-18 11:54 ` Sachin Sant 2023-06-24 14:52 ` Aneesh Kumar K.V 2023-06-24 14:52 ` Aneesh Kumar K.V 2023-06-24 17:22 ` Andrew Morton 2023-06-24 17:22 ` Andrew Morton 2023-07-03 5:26 ` (subset) " Michael Ellerman 2023-07-03 5:26 ` Michael Ellerman
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