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powerpc/book3s64/mm: enable transparent pud hugepage
This is enabled only with radix translation and 1G hugepage size. This will be used with devdax device memory with a namespace alignment of 1G. Anon transparent hugepage is not supported even though we do have helpers checking pud_trans_huge(). We should never find that return true. The only expected pte bit combination is _PAGE_PTE | _PAGE_DEVMAP. Some of the helpers are never expected to get called on hash translation and hence is marked to call BUG() in such a case. Link: https://lkml.kernel.org/r/20230724190759.483013-10-aneesh.kumar@linux.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Muchun Song <muchun.song@linux.dev> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Oscar Salvador <osalvador@suse.de> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Aneesh Kumar K.V
Andrew Morton
parent
104c49d5b6
commit
27af67f356
10 changed files with 323 additions and 11 deletions
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@ -138,7 +138,16 @@ static inline int hash__pmd_same(pmd_t pmd_a, pmd_t pmd_b)
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}
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#define hash__pmd_bad(pmd) (pmd_val(pmd) & H_PMD_BAD_BITS)
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/*
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* pud comparison that will work with both pte and page table pointer.
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*/
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static inline int hash__pud_same(pud_t pud_a, pud_t pud_b)
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{
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return (((pud_raw(pud_a) ^ pud_raw(pud_b)) & ~cpu_to_be64(_PAGE_HPTEFLAGS)) == 0);
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}
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#define hash__pud_bad(pud) (pud_val(pud) & H_PUD_BAD_BITS)
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static inline int hash__p4d_bad(p4d_t p4d)
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{
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return (p4d_val(p4d) == 0);
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@ -921,8 +921,29 @@ static inline pud_t pte_pud(pte_t pte)
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{
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return __pud_raw(pte_raw(pte));
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}
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static inline pte_t *pudp_ptep(pud_t *pud)
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{
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return (pte_t *)pud;
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}
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#define pud_pfn(pud) pte_pfn(pud_pte(pud))
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#define pud_dirty(pud) pte_dirty(pud_pte(pud))
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#define pud_young(pud) pte_young(pud_pte(pud))
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#define pud_mkold(pud) pte_pud(pte_mkold(pud_pte(pud)))
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#define pud_wrprotect(pud) pte_pud(pte_wrprotect(pud_pte(pud)))
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#define pud_mkdirty(pud) pte_pud(pte_mkdirty(pud_pte(pud)))
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#define pud_mkclean(pud) pte_pud(pte_mkclean(pud_pte(pud)))
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#define pud_mkyoung(pud) pte_pud(pte_mkyoung(pud_pte(pud)))
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#define pud_mkwrite(pud) pte_pud(pte_mkwrite(pud_pte(pud)))
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#define pud_write(pud) pte_write(pud_pte(pud))
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#ifdef CONFIG_HAVE_ARCH_SOFT_DIRTY
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#define pud_soft_dirty(pmd) pte_soft_dirty(pud_pte(pud))
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#define pud_mksoft_dirty(pmd) pte_pud(pte_mksoft_dirty(pud_pte(pud)))
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#define pud_clear_soft_dirty(pmd) pte_pud(pte_clear_soft_dirty(pud_pte(pud)))
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#endif /* CONFIG_HAVE_ARCH_SOFT_DIRTY */
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static inline int pud_bad(pud_t pud)
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{
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if (radix_enabled())
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@ -1115,15 +1136,24 @@ static inline bool pmd_access_permitted(pmd_t pmd, bool write)
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#ifdef CONFIG_TRANSPARENT_HUGEPAGE
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extern pmd_t pfn_pmd(unsigned long pfn, pgprot_t pgprot);
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extern pud_t pfn_pud(unsigned long pfn, pgprot_t pgprot);
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extern pmd_t mk_pmd(struct page *page, pgprot_t pgprot);
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extern pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot);
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extern void set_pmd_at(struct mm_struct *mm, unsigned long addr,
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pmd_t *pmdp, pmd_t pmd);
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extern void set_pud_at(struct mm_struct *mm, unsigned long addr,
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pud_t *pudp, pud_t pud);
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static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
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unsigned long addr, pmd_t *pmd)
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{
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}
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static inline void update_mmu_cache_pud(struct vm_area_struct *vma,
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unsigned long addr, pud_t *pud)
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{
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}
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extern int hash__has_transparent_hugepage(void);
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static inline int has_transparent_hugepage(void)
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{
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@ -1133,6 +1163,14 @@ static inline int has_transparent_hugepage(void)
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}
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#define has_transparent_hugepage has_transparent_hugepage
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static inline int has_transparent_pud_hugepage(void)
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{
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if (radix_enabled())
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return radix__has_transparent_pud_hugepage();
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return 0;
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}
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#define has_transparent_pud_hugepage has_transparent_pud_hugepage
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static inline unsigned long
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pmd_hugepage_update(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp,
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unsigned long clr, unsigned long set)
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@ -1142,6 +1180,16 @@ pmd_hugepage_update(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp,
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return hash__pmd_hugepage_update(mm, addr, pmdp, clr, set);
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}
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static inline unsigned long
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pud_hugepage_update(struct mm_struct *mm, unsigned long addr, pud_t *pudp,
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unsigned long clr, unsigned long set)
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{
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if (radix_enabled())
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return radix__pud_hugepage_update(mm, addr, pudp, clr, set);
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BUG();
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return pud_val(*pudp);
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}
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/*
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* returns true for pmd migration entries, THP, devmap, hugetlb
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* But compile time dependent on THP config
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@ -1151,6 +1199,11 @@ static inline int pmd_large(pmd_t pmd)
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return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE));
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}
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static inline int pud_large(pud_t pud)
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{
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return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE));
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}
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/*
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* For radix we should always find H_PAGE_HASHPTE zero. Hence
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* the below will work for radix too
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@ -1166,6 +1219,17 @@ static inline int __pmdp_test_and_clear_young(struct mm_struct *mm,
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return ((old & _PAGE_ACCESSED) != 0);
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}
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static inline int __pudp_test_and_clear_young(struct mm_struct *mm,
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unsigned long addr, pud_t *pudp)
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{
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unsigned long old;
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if ((pud_raw(*pudp) & cpu_to_be64(_PAGE_ACCESSED | H_PAGE_HASHPTE)) == 0)
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return 0;
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old = pud_hugepage_update(mm, addr, pudp, _PAGE_ACCESSED, 0);
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return ((old & _PAGE_ACCESSED) != 0);
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}
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#define __HAVE_ARCH_PMDP_SET_WRPROTECT
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static inline void pmdp_set_wrprotect(struct mm_struct *mm, unsigned long addr,
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pmd_t *pmdp)
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@ -1174,6 +1238,14 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm, unsigned long addr,
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pmd_hugepage_update(mm, addr, pmdp, _PAGE_WRITE, 0);
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}
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#define __HAVE_ARCH_PUDP_SET_WRPROTECT
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static inline void pudp_set_wrprotect(struct mm_struct *mm, unsigned long addr,
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pud_t *pudp)
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{
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if (pud_write(*pudp))
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pud_hugepage_update(mm, addr, pudp, _PAGE_WRITE, 0);
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}
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/*
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* Only returns true for a THP. False for pmd migration entry.
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* We also need to return true when we come across a pte that
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@ -1195,6 +1267,17 @@ static inline int pmd_trans_huge(pmd_t pmd)
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return hash__pmd_trans_huge(pmd);
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}
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static inline int pud_trans_huge(pud_t pud)
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{
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if (!pud_present(pud))
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return false;
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if (radix_enabled())
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return radix__pud_trans_huge(pud);
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return 0;
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}
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#define __HAVE_ARCH_PMD_SAME
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static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
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{
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@ -1203,6 +1286,15 @@ static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
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return hash__pmd_same(pmd_a, pmd_b);
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}
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#define pud_same pud_same
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static inline int pud_same(pud_t pud_a, pud_t pud_b)
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{
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if (radix_enabled())
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return radix__pud_same(pud_a, pud_b);
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return hash__pud_same(pud_a, pud_b);
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}
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static inline pmd_t __pmd_mkhuge(pmd_t pmd)
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{
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if (radix_enabled())
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@ -1210,6 +1302,14 @@ static inline pmd_t __pmd_mkhuge(pmd_t pmd)
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return hash__pmd_mkhuge(pmd);
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}
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static inline pud_t __pud_mkhuge(pud_t pud)
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{
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if (radix_enabled())
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return radix__pud_mkhuge(pud);
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BUG();
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return pud;
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}
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/*
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* pfn_pmd return a pmd_t that can be used as pmd pte entry.
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*/
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@ -1225,14 +1325,34 @@ static inline pmd_t pmd_mkhuge(pmd_t pmd)
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return pmd;
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}
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static inline pud_t pud_mkhuge(pud_t pud)
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{
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#ifdef CONFIG_DEBUG_VM
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if (radix_enabled())
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WARN_ON((pud_raw(pud) & cpu_to_be64(_PAGE_PTE)) == 0);
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else
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WARN_ON(1);
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#endif
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return pud;
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}
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#define __HAVE_ARCH_PMDP_SET_ACCESS_FLAGS
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extern int pmdp_set_access_flags(struct vm_area_struct *vma,
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unsigned long address, pmd_t *pmdp,
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pmd_t entry, int dirty);
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#define __HAVE_ARCH_PUDP_SET_ACCESS_FLAGS
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extern int pudp_set_access_flags(struct vm_area_struct *vma,
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unsigned long address, pud_t *pudp,
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pud_t entry, int dirty);
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#define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG
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extern int pmdp_test_and_clear_young(struct vm_area_struct *vma,
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unsigned long address, pmd_t *pmdp);
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#define __HAVE_ARCH_PUDP_TEST_AND_CLEAR_YOUNG
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extern int pudp_test_and_clear_young(struct vm_area_struct *vma,
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unsigned long address, pud_t *pudp);
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#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
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static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
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@ -1243,6 +1363,16 @@ static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
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return hash__pmdp_huge_get_and_clear(mm, addr, pmdp);
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}
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#define __HAVE_ARCH_PUDP_HUGE_GET_AND_CLEAR
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static inline pud_t pudp_huge_get_and_clear(struct mm_struct *mm,
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unsigned long addr, pud_t *pudp)
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{
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if (radix_enabled())
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return radix__pudp_huge_get_and_clear(mm, addr, pudp);
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BUG();
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return *pudp;
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}
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static inline pmd_t pmdp_collapse_flush(struct vm_area_struct *vma,
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unsigned long address, pmd_t *pmdp)
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{
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@ -1257,6 +1387,11 @@ pmd_t pmdp_huge_get_and_clear_full(struct vm_area_struct *vma,
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unsigned long addr,
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pmd_t *pmdp, int full);
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#define __HAVE_ARCH_PUDP_HUGE_GET_AND_CLEAR_FULL
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pud_t pudp_huge_get_and_clear_full(struct vm_area_struct *vma,
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unsigned long addr,
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pud_t *pudp, int full);
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#define __HAVE_ARCH_PGTABLE_DEPOSIT
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static inline void pgtable_trans_huge_deposit(struct mm_struct *mm,
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pmd_t *pmdp, pgtable_t pgtable)
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@ -1305,6 +1440,14 @@ static inline pmd_t pmd_mkdevmap(pmd_t pmd)
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return hash__pmd_mkdevmap(pmd);
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}
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static inline pud_t pud_mkdevmap(pud_t pud)
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{
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if (radix_enabled())
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return radix__pud_mkdevmap(pud);
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BUG();
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return pud;
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}
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static inline int pmd_devmap(pmd_t pmd)
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{
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return pte_devmap(pmd_pte(pmd));
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@ -1312,7 +1455,7 @@ static inline int pmd_devmap(pmd_t pmd)
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static inline int pud_devmap(pud_t pud)
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{
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return 0;
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return pte_devmap(pud_pte(pud));
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}
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static inline int pgd_devmap(pgd_t pgd)
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@ -1321,16 +1464,6 @@ static inline int pgd_devmap(pgd_t pgd)
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}
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#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
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static inline int pud_pfn(pud_t pud)
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{
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/*
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* Currently all calls to pud_pfn() are gated around a pud_devmap()
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* check so this should never be used. If it grows another user we
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* want to know about it.
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*/
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BUILD_BUG();
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return 0;
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}
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#define __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION
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pte_t ptep_modify_prot_start(struct vm_area_struct *, unsigned long, pte_t *);
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void ptep_modify_prot_commit(struct vm_area_struct *, unsigned long,
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@ -250,6 +250,10 @@ static inline int radix__pud_bad(pud_t pud)
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return !!(pud_val(pud) & RADIX_PUD_BAD_BITS);
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}
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static inline int radix__pud_same(pud_t pud_a, pud_t pud_b)
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{
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return ((pud_raw(pud_a) ^ pud_raw(pud_b)) == 0);
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}
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static inline int radix__p4d_bad(p4d_t p4d)
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{
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@ -268,9 +272,22 @@ static inline pmd_t radix__pmd_mkhuge(pmd_t pmd)
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return __pmd(pmd_val(pmd) | _PAGE_PTE);
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}
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static inline int radix__pud_trans_huge(pud_t pud)
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{
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return (pud_val(pud) & (_PAGE_PTE | _PAGE_DEVMAP)) == _PAGE_PTE;
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}
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static inline pud_t radix__pud_mkhuge(pud_t pud)
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{
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return __pud(pud_val(pud) | _PAGE_PTE);
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}
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extern unsigned long radix__pmd_hugepage_update(struct mm_struct *mm, unsigned long addr,
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pmd_t *pmdp, unsigned long clr,
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unsigned long set);
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extern unsigned long radix__pud_hugepage_update(struct mm_struct *mm, unsigned long addr,
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pud_t *pudp, unsigned long clr,
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unsigned long set);
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extern pmd_t radix__pmdp_collapse_flush(struct vm_area_struct *vma,
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unsigned long address, pmd_t *pmdp);
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extern void radix__pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
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@ -278,6 +295,9 @@ extern void radix__pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
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extern pgtable_t radix__pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp);
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extern pmd_t radix__pmdp_huge_get_and_clear(struct mm_struct *mm,
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unsigned long addr, pmd_t *pmdp);
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pud_t radix__pudp_huge_get_and_clear(struct mm_struct *mm,
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unsigned long addr, pud_t *pudp);
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static inline int radix__has_transparent_hugepage(void)
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{
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/* For radix 2M at PMD level means thp */
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@ -285,6 +305,14 @@ static inline int radix__has_transparent_hugepage(void)
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return 1;
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return 0;
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}
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static inline int radix__has_transparent_pud_hugepage(void)
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{
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/* For radix 1G at PUD level means pud hugepage support */
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if (mmu_psize_defs[MMU_PAGE_1G].shift == PUD_SHIFT)
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return 1;
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return 0;
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}
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#endif
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static inline pmd_t radix__pmd_mkdevmap(pmd_t pmd)
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@ -292,9 +320,17 @@ static inline pmd_t radix__pmd_mkdevmap(pmd_t pmd)
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return __pmd(pmd_val(pmd) | (_PAGE_PTE | _PAGE_DEVMAP));
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}
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static inline pud_t radix__pud_mkdevmap(pud_t pud)
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{
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return __pud(pud_val(pud) | (_PAGE_PTE | _PAGE_DEVMAP));
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}
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struct vmem_altmap;
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extern int __meminit radix__vmemmap_create_mapping(unsigned long start,
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unsigned long page_size,
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||||
unsigned long phys);
|
||||
int __meminit radix__vmemmap_populate(unsigned long start, unsigned long end,
|
||||
int node, struct vmem_altmap *altmap);
|
||||
extern void radix__vmemmap_remove_mapping(unsigned long start,
|
||||
unsigned long page_size);
|
||||
|
||||
|
|
|
|||
|
|
@ -68,6 +68,8 @@ void radix__flush_tlb_pwc_range_psize(struct mm_struct *mm, unsigned long start,
|
|||
unsigned long end, int psize);
|
||||
extern void radix__flush_pmd_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end);
|
||||
extern void radix__flush_pud_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end);
|
||||
extern void radix__flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
|
||||
unsigned long end);
|
||||
extern void radix__flush_tlb_kernel_range(unsigned long start, unsigned long end);
|
||||
|
|
|
|||
|
|
@ -51,6 +51,14 @@ static inline void flush_pmd_tlb_range(struct vm_area_struct *vma,
|
|||
radix__flush_pmd_tlb_range(vma, start, end);
|
||||
}
|
||||
|
||||
#define __HAVE_ARCH_FLUSH_PUD_TLB_RANGE
|
||||
static inline void flush_pud_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
if (radix_enabled())
|
||||
radix__flush_pud_tlb_range(vma, start, end);
|
||||
}
|
||||
|
||||
#define __HAVE_ARCH_FLUSH_HUGETLB_TLB_RANGE
|
||||
static inline void flush_hugetlb_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start,
|
||||
|
|
|
|||
|
|
@ -64,11 +64,39 @@ int pmdp_set_access_flags(struct vm_area_struct *vma, unsigned long address,
|
|||
return changed;
|
||||
}
|
||||
|
||||
int pudp_set_access_flags(struct vm_area_struct *vma, unsigned long address,
|
||||
pud_t *pudp, pud_t entry, int dirty)
|
||||
{
|
||||
int changed;
|
||||
#ifdef CONFIG_DEBUG_VM
|
||||
WARN_ON(!pud_devmap(*pudp));
|
||||
assert_spin_locked(pud_lockptr(vma->vm_mm, pudp));
|
||||
#endif
|
||||
changed = !pud_same(*(pudp), entry);
|
||||
if (changed) {
|
||||
/*
|
||||
* We can use MMU_PAGE_1G here, because only radix
|
||||
* path look at the psize.
|
||||
*/
|
||||
__ptep_set_access_flags(vma, pudp_ptep(pudp),
|
||||
pud_pte(entry), address, MMU_PAGE_1G);
|
||||
}
|
||||
return changed;
|
||||
}
|
||||
|
||||
|
||||
int pmdp_test_and_clear_young(struct vm_area_struct *vma,
|
||||
unsigned long address, pmd_t *pmdp)
|
||||
{
|
||||
return __pmdp_test_and_clear_young(vma->vm_mm, address, pmdp);
|
||||
}
|
||||
|
||||
int pudp_test_and_clear_young(struct vm_area_struct *vma,
|
||||
unsigned long address, pud_t *pudp)
|
||||
{
|
||||
return __pudp_test_and_clear_young(vma->vm_mm, address, pudp);
|
||||
}
|
||||
|
||||
/*
|
||||
* set a new huge pmd. We should not be called for updating
|
||||
* an existing pmd entry. That should go via pmd_hugepage_update.
|
||||
|
|
@ -90,6 +118,23 @@ void set_pmd_at(struct mm_struct *mm, unsigned long addr,
|
|||
return set_pte_at(mm, addr, pmdp_ptep(pmdp), pmd_pte(pmd));
|
||||
}
|
||||
|
||||
void set_pud_at(struct mm_struct *mm, unsigned long addr,
|
||||
pud_t *pudp, pud_t pud)
|
||||
{
|
||||
#ifdef CONFIG_DEBUG_VM
|
||||
/*
|
||||
* Make sure hardware valid bit is not set. We don't do
|
||||
* tlb flush for this update.
|
||||
*/
|
||||
|
||||
WARN_ON(pte_hw_valid(pud_pte(*pudp)));
|
||||
assert_spin_locked(pud_lockptr(mm, pudp));
|
||||
WARN_ON(!(pud_large(pud)));
|
||||
#endif
|
||||
trace_hugepage_set_pud(addr, pud_val(pud));
|
||||
return set_pte_at(mm, addr, pudp_ptep(pudp), pud_pte(pud));
|
||||
}
|
||||
|
||||
static void do_serialize(void *arg)
|
||||
{
|
||||
/* We've taken the IPI, so try to trim the mask while here */
|
||||
|
|
@ -147,11 +192,35 @@ pmd_t pmdp_huge_get_and_clear_full(struct vm_area_struct *vma,
|
|||
return pmd;
|
||||
}
|
||||
|
||||
pud_t pudp_huge_get_and_clear_full(struct vm_area_struct *vma,
|
||||
unsigned long addr, pud_t *pudp, int full)
|
||||
{
|
||||
pud_t pud;
|
||||
|
||||
VM_BUG_ON(addr & ~HPAGE_PMD_MASK);
|
||||
VM_BUG_ON((pud_present(*pudp) && !pud_devmap(*pudp)) ||
|
||||
!pud_present(*pudp));
|
||||
pud = pudp_huge_get_and_clear(vma->vm_mm, addr, pudp);
|
||||
/*
|
||||
* if it not a fullmm flush, then we can possibly end up converting
|
||||
* this PMD pte entry to a regular level 0 PTE by a parallel page fault.
|
||||
* Make sure we flush the tlb in this case.
|
||||
*/
|
||||
if (!full)
|
||||
flush_pud_tlb_range(vma, addr, addr + HPAGE_PUD_SIZE);
|
||||
return pud;
|
||||
}
|
||||
|
||||
static pmd_t pmd_set_protbits(pmd_t pmd, pgprot_t pgprot)
|
||||
{
|
||||
return __pmd(pmd_val(pmd) | pgprot_val(pgprot));
|
||||
}
|
||||
|
||||
static pud_t pud_set_protbits(pud_t pud, pgprot_t pgprot)
|
||||
{
|
||||
return __pud(pud_val(pud) | pgprot_val(pgprot));
|
||||
}
|
||||
|
||||
/*
|
||||
* At some point we should be able to get rid of
|
||||
* pmd_mkhuge() and mk_huge_pmd() when we update all the
|
||||
|
|
@ -166,6 +235,15 @@ pmd_t pfn_pmd(unsigned long pfn, pgprot_t pgprot)
|
|||
return __pmd_mkhuge(pmd_set_protbits(__pmd(pmdv), pgprot));
|
||||
}
|
||||
|
||||
pud_t pfn_pud(unsigned long pfn, pgprot_t pgprot)
|
||||
{
|
||||
unsigned long pudv;
|
||||
|
||||
pudv = (pfn << PAGE_SHIFT) & PTE_RPN_MASK;
|
||||
|
||||
return __pud_mkhuge(pud_set_protbits(__pud(pudv), pgprot));
|
||||
}
|
||||
|
||||
pmd_t mk_pmd(struct page *page, pgprot_t pgprot)
|
||||
{
|
||||
return pfn_pmd(page_to_pfn(page), pgprot);
|
||||
|
|
|
|||
|
|
@ -967,6 +967,23 @@ unsigned long radix__pmd_hugepage_update(struct mm_struct *mm, unsigned long add
|
|||
return old;
|
||||
}
|
||||
|
||||
unsigned long radix__pud_hugepage_update(struct mm_struct *mm, unsigned long addr,
|
||||
pud_t *pudp, unsigned long clr,
|
||||
unsigned long set)
|
||||
{
|
||||
unsigned long old;
|
||||
|
||||
#ifdef CONFIG_DEBUG_VM
|
||||
WARN_ON(!pud_devmap(*pudp));
|
||||
assert_spin_locked(pud_lockptr(mm, pudp));
|
||||
#endif
|
||||
|
||||
old = radix__pte_update(mm, addr, pudp_ptep(pudp), clr, set, 1);
|
||||
trace_hugepage_update_pud(addr, old, clr, set);
|
||||
|
||||
return old;
|
||||
}
|
||||
|
||||
pmd_t radix__pmdp_collapse_flush(struct vm_area_struct *vma, unsigned long address,
|
||||
pmd_t *pmdp)
|
||||
|
||||
|
|
@ -1043,6 +1060,17 @@ pmd_t radix__pmdp_huge_get_and_clear(struct mm_struct *mm,
|
|||
return old_pmd;
|
||||
}
|
||||
|
||||
pud_t radix__pudp_huge_get_and_clear(struct mm_struct *mm,
|
||||
unsigned long addr, pud_t *pudp)
|
||||
{
|
||||
pud_t old_pud;
|
||||
unsigned long old;
|
||||
|
||||
old = radix__pud_hugepage_update(mm, addr, pudp, ~0UL, 0);
|
||||
old_pud = __pud(old);
|
||||
return old_pud;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
|
||||
|
||||
void radix__ptep_set_access_flags(struct vm_area_struct *vma, pte_t *ptep,
|
||||
|
|
|
|||
|
|
@ -1465,6 +1465,13 @@ void radix__flush_pmd_tlb_range(struct vm_area_struct *vma,
|
|||
}
|
||||
EXPORT_SYMBOL(radix__flush_pmd_tlb_range);
|
||||
|
||||
void radix__flush_pud_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
radix__flush_tlb_range_psize(vma->vm_mm, start, end, MMU_PAGE_1G);
|
||||
}
|
||||
EXPORT_SYMBOL(radix__flush_pud_tlb_range);
|
||||
|
||||
void radix__flush_tlb_all(void)
|
||||
{
|
||||
unsigned long rb,prs,r,rs;
|
||||
|
|
|
|||
|
|
@ -94,6 +94,7 @@ config PPC_BOOK3S_64
|
|||
select PPC_FPU
|
||||
select PPC_HAVE_PMU_SUPPORT
|
||||
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
|
||||
select HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
|
||||
select ARCH_ENABLE_HUGEPAGE_MIGRATION if HUGETLB_PAGE && MIGRATION
|
||||
select ARCH_ENABLE_SPLIT_PMD_PTLOCK
|
||||
select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE
|
||||
|
|
|
|||
|
|
@ -30,6 +30,11 @@ DEFINE_EVENT(hugepage_set, hugepage_set_pmd,
|
|||
TP_ARGS(addr, pmd)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(hugepage_set, hugepage_set_pud,
|
||||
TP_PROTO(unsigned long addr, unsigned long pud),
|
||||
TP_ARGS(addr, pud)
|
||||
);
|
||||
|
||||
DECLARE_EVENT_CLASS(hugepage_update,
|
||||
|
||||
TP_PROTO(unsigned long addr, unsigned long pte, unsigned long clr, unsigned long set),
|
||||
|
|
@ -57,6 +62,11 @@ DEFINE_EVENT(hugepage_update, hugepage_update_pmd,
|
|||
TP_ARGS(addr, pmd, clr, set)
|
||||
);
|
||||
|
||||
DEFINE_EVENT(hugepage_update, hugepage_update_pud,
|
||||
TP_PROTO(unsigned long addr, unsigned long pud, unsigned long clr, unsigned long set),
|
||||
TP_ARGS(addr, pud, clr, set)
|
||||
);
|
||||
|
||||
DECLARE_EVENT_CLASS(migration_pmd,
|
||||
|
||||
TP_PROTO(unsigned long addr, unsigned long pmd),
|
||||
|
|
|
|||
Loading…
Reference in a new issue