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| 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/pgtable-64k.h | |
| parent | powerpc/mm: THP is only available on hash64 as of now (diff) | |
| download | wireguard-linux-3df33f12be2f6fa88dff12564ab1d069482e3224.tar.xz wireguard-linux-3df33f12be2f6fa88dff12564ab1d069482e3224.zip | |
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/pgtable-64k.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/pgtable-64k.h | 42 |
1 files changed, 6 insertions, 36 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable-64k.h b/arch/powerpc/include/asm/book3s/64/pgtable-64k.h index 27b5e34abe24..79331cf77613 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable-64k.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable-64k.h @@ -54,41 +54,6 @@ static inline int hugepd_ok(hugepd_t hpd) #endif /* CONFIG_HUGETLB_PAGE */ #ifdef CONFIG_TRANSPARENT_HUGEPAGE -static inline int pmd_large(pmd_t pmd) -{ - return !!(pmd_val(pmd) & _PAGE_PTE); -} - -static inline pmd_t pmd_mknotpresent(pmd_t pmd) -{ - return __pmd(pmd_val(pmd) & ~_PAGE_PRESENT); -} -/* - * For radix we should always find H_PAGE_HASHPTE zero. Hence - * the below will work for radix too - */ -static inline int __pmdp_test_and_clear_young(struct mm_struct *mm, - unsigned long addr, pmd_t *pmdp) -{ - unsigned long old; - - if ((pmd_val(*pmdp) & (_PAGE_ACCESSED | H_PAGE_HASHPTE)) == 0) - return 0; - old = pmd_hugepage_update(mm, addr, pmdp, _PAGE_ACCESSED, 0); - return ((old & _PAGE_ACCESSED) != 0); -} - -#define __HAVE_ARCH_PMDP_SET_WRPROTECT -static inline void pmdp_set_wrprotect(struct mm_struct *mm, unsigned long addr, - pmd_t *pmdp) -{ - - if ((pmd_val(*pmdp) & _PAGE_WRITE) == 0) - return; - - pmd_hugepage_update(mm, addr, pmdp, _PAGE_WRITE, 0); -} - static inline int pmd_trans_huge(pmd_t pmd) { if (radix_enabled()) @@ -103,6 +68,12 @@ static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b) return radix__pmd_same(pmd_a, pmd_b); return hash__pmd_same(pmd_a, pmd_b); } + +static inline pmd_t pmd_mkhuge(pmd_t pmd) +{ + return hash__pmd_mkhuge(pmd); +} + #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ static inline int remap_4k_pfn(struct vm_area_struct *vma, unsigned long addr, @@ -111,7 +82,6 @@ static inline int remap_4k_pfn(struct vm_area_struct *vma, unsigned long addr, if (radix_enabled()) BUG(); return hash__remap_4k_pfn(vma, addr, pfn, prot); - } #endif /* __ASSEMBLY__ */ #endif /*_ASM_POWERPC_BOOK3S_64_PGTABLE_64K_H */ |