1 #ifndef _ASM_SH_HUGETLB_H 2 #define _ASM_SH_HUGETLB_H 3 4 #include <asm/cacheflush.h> 5 #include <asm/page.h> 6 #include <asm-generic/hugetlb.h> 7 8 9 static inline int is_hugepage_only_range(struct mm_struct *mm, 10 unsigned long addr, 11 unsigned long len) { 12 return 0; 13 } 14 15 /* 16 * If the arch doesn't supply something else, assume that hugepage 17 * size aligned regions are ok without further preparation. 18 */ 19 static inline int prepare_hugepage_range(struct file *file, 20 unsigned long addr, unsigned long len) 21 { 22 if (len & ~HPAGE_MASK) 23 return -EINVAL; 24 if (addr & ~HPAGE_MASK) 25 return -EINVAL; 26 return 0; 27 } 28 29 static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb, 30 unsigned long addr, unsigned long end, 31 unsigned long floor, 32 unsigned long ceiling) 33 { 34 free_pgd_range(tlb, addr, end, floor, ceiling); 35 } 36 37 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, 38 pte_t *ptep, pte_t pte) 39 { 40 set_pte_at(mm, addr, ptep, pte); 41 } 42 43 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm, 44 unsigned long addr, pte_t *ptep) 45 { 46 return ptep_get_and_clear(mm, addr, ptep); 47 } 48 49 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, 50 unsigned long addr, pte_t *ptep) 51 { 52 } 53 54 static inline int huge_pte_none(pte_t pte) 55 { 56 return pte_none(pte); 57 } 58 59 static inline pte_t huge_pte_wrprotect(pte_t pte) 60 { 61 return pte_wrprotect(pte); 62 } 63 64 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, 65 unsigned long addr, pte_t *ptep) 66 { 67 ptep_set_wrprotect(mm, addr, ptep); 68 } 69 70 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma, 71 unsigned long addr, pte_t *ptep, 72 pte_t pte, int dirty) 73 { 74 return ptep_set_access_flags(vma, addr, ptep, pte, dirty); 75 } 76 77 static inline pte_t huge_ptep_get(pte_t *ptep) 78 { 79 return *ptep; 80 } 81 82 static inline void arch_clear_hugepage_flags(struct page *page) 83 { 84 clear_bit(PG_dcache_clean, &page->flags); 85 } 86 87 #endif /* _ASM_SH_HUGETLB_H */ 88