diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-04-29 23:26:29 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-05-11 21:53:57 +1000 |
| commit | 3df33f12be2f6fa88dff12564ab1d069482e3224 (patch) | |
| tree | 70a1a974df6f748741a5768a71c305a370812537 /arch/powerpc/include/asm/book3s/64/hash-64k.h | |
| parent | 6a1ea36260f69f1aea85bbf8afcd6a8c193485b9 (diff) | |
powerpc/mm/thp: Abstraction for THP functions
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/hash-64k.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/hash-64k.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/hash-64k.h b/arch/powerpc/include/asm/book3s/64/hash-64k.h index 80d2abe25280..5aae4f530c21 100644 --- a/arch/powerpc/include/asm/book3s/64/hash-64k.h +++ b/arch/powerpc/include/asm/book3s/64/hash-64k.h @@ -119,11 +119,6 @@ static inline int hash__remap_4k_pfn(struct vm_area_struct *vma, unsigned long a #define H_PGD_TABLE_SIZE (sizeof(pgd_t) << PGD_INDEX_SIZE) #ifdef CONFIG_TRANSPARENT_HUGEPAGE -extern unsigned long pmd_hugepage_update(struct mm_struct *mm, - unsigned long addr, - pmd_t *pmdp, - unsigned long clr, - unsigned long set); static inline char *get_hpte_slot_array(pmd_t *pmdp) { /* @@ -193,6 +188,24 @@ static inline int hash__pmd_same(pmd_t pmd_a, pmd_t pmd_b) return (((pmd_raw(pmd_a) ^ pmd_raw(pmd_b)) & ~cpu_to_be64(_PAGE_HPTEFLAGS)) == 0); } +static inline pmd_t hash__pmd_mkhuge(pmd_t pmd) +{ + return __pmd(pmd_val(pmd) | (_PAGE_PTE | H_PAGE_THP_HUGE)); +} + +extern unsigned long hash__pmd_hugepage_update(struct mm_struct *mm, + unsigned long addr, pmd_t *pmdp, + unsigned long clr, unsigned long set); +extern pmd_t hash__pmdp_collapse_flush(struct vm_area_struct *vma, + unsigned long address, pmd_t *pmdp); +extern void hash__pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp, + pgtable_t pgtable); +extern pgtable_t hash__pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp); +extern void hash__pmdp_huge_split_prepare(struct vm_area_struct *vma, + unsigned long address, pmd_t *pmdp); +extern pmd_t hash__pmdp_huge_get_and_clear(struct mm_struct *mm, + unsigned long addr, pmd_t *pmdp); +extern int hash__has_transparent_hugepage(void); #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ #endif /* __ASSEMBLY__ */ |