projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 6d779079 GS |
1 | #ifndef _ASM_POWERPC_HUGETLB_H |
| 2 | #define _ASM_POWERPC_HUGETLB_H | |
| 3 | ||
| 4 | #include <asm/page.h> | |
| 5 | ||
| 6 | ||
| 7 | int is_hugepage_only_range(struct mm_struct *mm, unsigned long addr, | |
| 8 | unsigned long len); | |
| 9 | ||
| 10 | void hugetlb_free_pgd_range(struct mmu_gather **tlb, unsigned long addr, | |
| 11 | unsigned long end, unsigned long floor, | |
| 12 | unsigned long ceiling); | |
| 13 | ||
| 14 | void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, | |
| 15 | pte_t *ptep, pte_t pte); | |
| 16 | ||
| 17 | pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, | |
| 18 | pte_t *ptep); | |
| 19 | ||
| 20 | /* | |
| 21 | * If the arch doesn't supply something else, assume that hugepage | |
| 22 | * size aligned regions are ok without further preparation. | |
| 23 | */ | |
| 24 | static inline int prepare_hugepage_range(unsigned long addr, unsigned long len) | |
| 25 | { | |
| 26 | if (len & ~HPAGE_MASK) | |
| 27 | return -EINVAL; | |
| 28 | if (addr & ~HPAGE_MASK) | |
| 29 | return -EINVAL; | |
| 30 | return 0; | |
| 31 | } | |
| 32 | ||
| 33 | static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) | |
| 34 | { | |
| 35 | } | |
| 36 | ||
| 8fe627ec GS |
37 | static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, |
| 38 | unsigned long addr, pte_t *ptep) | |
| 39 | { | |
| 40 | } | |
| 41 | ||
| 6d779079 | 42 | #endif /* _ASM_POWERPC_HUGETLB_H */ |