search for: hpage_pmd_order

Displaying 13 results from an estimated 13 matches for "hpage_pmd_order".

2020 Nov 06
1
[PATCH v3 1/6] mm/thp: add prep_transhuge_device_private_page()
...ON(compound_order(page) == 1); INIT_LIST_HEAD(page_deferred_list(page)); set_compound_page_dtor(page, TRANSHUGE_PAGE_DTOR); + + return page; } It simplifies the users. > +void prep_transhuge_device_private_page(struct page *page) > +{ > + prep_compound_page(page, HPAGE_PMD_ORDER); > + prep_transhuge_page(page); > + /* Only the head page has a reference to the pgmap. */ > + percpu_ref_put_many(page->pgmap->ref, HPAGE_PMD_NR - 1); > +} > +EXPORT_SYMBOL_GPL(prep_transhuge_device_private_page); Something else that may interest you from my patch series is...
2020 Jun 22
1
[PATCH 14/16] mm/thp: add THP allocation helper
...; +#ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION > +struct page *alloc_transhugepage(struct vm_area_struct *vma, > + unsigned long haddr) > +{ > + gfp_t gfp; > + struct page *page; > + > + gfp = alloc_hugepage_direct_gfpmask(vma); > + page = alloc_hugepage_vma(gfp, vma, haddr, HPAGE_PMD_ORDER); > + if (page) > + prep_transhuge_page(page); > + return page; > +} > +EXPORT_SYMBOL_GPL(alloc_transhugepage); > +#endif > + > static void insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr, > pmd_t *pmd, pfn_t pfn, pgprot_t prot, bool write, > pgta...
2020 Jun 19
0
[PATCH 14/16] mm/thp: add THP allocation helper
..._pmd_anonymous_page(vmf, page, gfp); } +#ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION +struct page *alloc_transhugepage(struct vm_area_struct *vma, + unsigned long haddr) +{ + gfp_t gfp; + struct page *page; + + gfp = alloc_hugepage_direct_gfpmask(vma); + page = alloc_hugepage_vma(gfp, vma, haddr, HPAGE_PMD_ORDER); + if (page) + prep_transhuge_page(page); + return page; +} +EXPORT_SYMBOL_GPL(alloc_transhugepage); +#endif + static void insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr, pmd_t *pmd, pfn_t pfn, pgprot_t prot, bool write, pgtable_t pgtable) -- 2.20.1
2020 Sep 02
0
[PATCH v2 4/7] mm/thp: add prep_transhuge_device_private_page()
...index a8d48994481a..1e848cc0c3dc 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -498,6 +498,14 @@ void prep_transhuge_page(struct page *page) set_compound_page_dtor(page, TRANSHUGE_PAGE_DTOR); } +void prep_transhuge_device_private_page(struct page *page) +{ + prep_compound_page(page, HPAGE_PMD_ORDER); + prep_transhuge_page(page); + percpu_ref_put_many(page->pgmap->ref, HPAGE_PMD_NR - 1); +} +EXPORT_SYMBOL_GPL(prep_transhuge_device_private_page); + bool is_transparent_hugepage(struct page *page) { if (!PageCompound(page)) -- 2.20.1
2020 Nov 06
0
[PATCH v3 1/6] mm/thp: add prep_transhuge_device_private_page()
...index 08a183f6c3ab..b4141f12ff31 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -498,6 +498,15 @@ void prep_transhuge_page(struct page *page) set_compound_page_dtor(page, TRANSHUGE_PAGE_DTOR); } +void prep_transhuge_device_private_page(struct page *page) +{ + prep_compound_page(page, HPAGE_PMD_ORDER); + prep_transhuge_page(page); + /* Only the head page has a reference to the pgmap. */ + percpu_ref_put_many(page->pgmap->ref, HPAGE_PMD_NR - 1); +} +EXPORT_SYMBOL_GPL(prep_transhuge_device_private_page); + bool is_transparent_hugepage(struct page *page) { if (!PageCompound(page)) -- 2....
2020 Nov 06
0
[PATCH v3 4/6] mm/thp: add THP allocation helper
...(struct vm_fault *vmf) return __do_huge_pmd_anonymous_page(vmf, page, gfp); } +struct page *alloc_transhugepage(struct vm_area_struct *vma, + unsigned long haddr) +{ + gfp_t gfp; + struct page *page; + + gfp = alloc_hugepage_direct_gfpmask(vma); + page = alloc_hugepage_vma(gfp, vma, haddr, HPAGE_PMD_ORDER); + if (page) + prep_transhuge_page(page); + return page; +} +EXPORT_SYMBOL_GPL(alloc_transhugepage); + static void insert_pfn_pmd(struct vm_area_struct *vma, unsigned long addr, pmd_t *pmd, pfn_t pfn, pgprot_t prot, bool write, pgtable_t pgtable) -- 2.20.1
2020 Nov 06
12
[PATCH v3 0/6] mm/hmm/nouveau: add THP migration to migrate_vma_*
This series adds support for transparent huge page migration to migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers. Earlier versions were posted previously [1] and [2]. The patches apply cleanly to the linux-mm 5.10.0-rc2 tree. There are a lot of other THP patches being posted. I don't think there are any semantic conflicts but there may be some merge conflicts depending on
2020 Jun 19
0
[PATCH 13/16] mm: support THP migration to device private memory
...+ struct page *page, + unsigned long *src, + unsigned long *dst, + pmd_t *pmdp) +{ + struct mm_struct *mm = vma->vm_mm; + unsigned int i; + spinlock_t *ptl; + bool flush = false; + pgtable_t pgtable; + gfp_t gfp; + pmd_t entry; + + if (WARN_ON_ONCE(compound_order(page) != HPAGE_PMD_ORDER)) + goto abort; + + if (unlikely(anon_vma_prepare(vma))) + goto abort; + + prep_transhuge_page(page); + + gfp = GFP_TRANSHUGE_LIGHT; + if (mem_cgroup_charge(page, mm, gfp)) + goto abort; + + pgtable = pte_alloc_one(mm); + if (unlikely(!pgtable)) + goto abort; + + __SetPageUptodate(page); + + if...
2020 Jun 19
22
[PATCH 00/16] mm/hmm/nouveau: THP mapping and migration
These patches apply to linux-5.8.0-rc1. Patches 1-3 should probably go into 5.8, the others can be queued for 5.9. Patches 4-6 improve the HMM self tests. Patch 7-8 prepare nouveau for the meat of this series which adds support and testing for compound page mapping of system memory (patches 9-11) and compound page migration to device private memory (patches 12-16). Since these changes are split
2020 Jun 19
0
[PATCH 15/16] mm/hmm/test: add self tests for THP migration
...* Check for PMD aligned PFN and create a huge page. + * Check for "< pfn_last - 1" so that the last two huge pages + * are used for normal pages. + */ + if ((pfn & (HPAGE_PMD_NR - 1)) == 0 && + pfn + HPAGE_PMD_NR < pfn_last - 1) { + prep_compound_page(page, HPAGE_PMD_ORDER); + page->zone_device_data = mdevice->free_huge_pages; + mdevice->free_huge_pages = page; + pfn += HPAGE_PMD_NR; + percpu_ref_put_many(page->pgmap->ref, HPAGE_PMD_NR - 1); + continue; + } +#endif page->zone_device_data = mdevice->free_pages; mdevice->free_pa...
2020 Jun 21
2
[PATCH 13/16] mm: support THP migration to device private memory
...+ unsigned long *dst, > + pmd_t *pmdp) > +{ > + struct mm_struct *mm = vma->vm_mm; > + unsigned int i; > + spinlock_t *ptl; > + bool flush = false; > + pgtable_t pgtable; > + gfp_t gfp; > + pmd_t entry; > + > + if (WARN_ON_ONCE(compound_order(page) != HPAGE_PMD_ORDER)) > + goto abort; > + > + if (unlikely(anon_vma_prepare(vma))) > + goto abort; > + > + prep_transhuge_page(page); > + > + gfp = GFP_TRANSHUGE_LIGHT; > + if (mem_cgroup_charge(page, mm, gfp)) > + goto abort; > + > + pgtable = pte_alloc_one(mm); > + if (unlik...
2020 Sep 02
10
[PATCH v2 0/7] mm/hmm/nouveau: add THP migration to migrate_vma_*
This series adds support for transparent huge page migration to migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers. An earlier version was posted previously [1]. This version now supports splitting a THP midway in the migration process which led to a number of changes. The patches apply cleanly to the current linux-mm tree. Since there are a couple of patches in linux-mm from Dan
2020 Nov 06
0
[PATCH v3 3/6] mm: support THP migration to device private memory
...unsigned long haddr, + struct page *page, + unsigned long *src, + pmd_t *pmdp) +{ + struct mm_struct *mm = vma->vm_mm; + unsigned int i; + spinlock_t *ptl; + bool flush = false; + pgtable_t pgtable; + gfp_t gfp; + pmd_t entry; + + if (WARN_ON_ONCE(compound_order(page) != HPAGE_PMD_ORDER)) + goto abort; + + if (unlikely(anon_vma_prepare(vma))) + goto abort; + + prep_transhuge_page(page); + + gfp = GFP_TRANSHUGE_LIGHT; + if (mem_cgroup_charge(page, mm, gfp)) + goto abort; + + pgtable = pte_alloc_one(mm); + if (unlikely(!pgtable)) + goto abort; + + __SetPageUptodate(page); + + if...