Gerald Schaefer | 6d77907 | 2008-04-28 02:13:27 -0700 | [diff] [blame^] | 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 | |
| 37 | #endif /* _ASM_POWERPC_HUGETLB_H */ |