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Diffstat (limited to 'arch/powerpc/include/asm/hugetlb.h')
-rw-r--r--arch/powerpc/include/asm/hugetlb.h27
1 files changed, 21 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index b1dafb6a974..5856a66ab40 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -3,6 +3,10 @@
#include <asm/page.h>
+pte_t *huge_pte_offset_and_shift(struct mm_struct *mm,
+ unsigned long addr, unsigned *shift);
+
+void flush_dcache_icache_hugepage(struct page *page);
int is_hugepage_only_range(struct mm_struct *mm, unsigned long addr,
unsigned long len);
@@ -11,12 +15,6 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
unsigned long end, unsigned long floor,
unsigned long ceiling);
-void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte);
-
-pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep);
-
/*
* The version of vma_mmu_pagesize() in arch/powerpc/mm/hugetlbpage.c needs
* to override the version in mm/hugetlb.c
@@ -42,9 +40,26 @@ static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
{
}
+
+static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, pte_t pte)
+{
+ set_pte_at(mm, addr, ptep, pte);
+}
+
+static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
+ unsigned long addr, pte_t *ptep)
+{
+ unsigned long old = pte_update(mm, addr, ptep, ~0UL, 1);
+ return __pte(old);
+}
+
static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep)
{
+ pte_t pte;
+ pte = huge_ptep_get_and_clear(vma->vm_mm, addr, ptep);
+ flush_tlb_page(vma, addr);
}
static inline int huge_pte_none(pte_t pte)