xref: /openbmc/linux/arch/ia64/include/asm/hugetlb.h (revision 8730046c) 
1 #ifndef _ASM_IA64_HUGETLB_H
2 #define _ASM_IA64_HUGETLB_H
3 
4 #include <asm/page.h>
5 #include <asm-generic/hugetlb.h>
6 
7 
8 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
9 			    unsigned long end, unsigned long floor,
10 			    unsigned long ceiling);
11 
12 int prepare_hugepage_range(struct file *file,
13 			unsigned long addr, unsigned long len);
14 
15 static inline int is_hugepage_only_range(struct mm_struct *mm,
16 					 unsigned long addr,
17 					 unsigned long len)
18 {
19 	return (REGION_NUMBER(addr) == RGN_HPAGE ||
20 		REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
21 }
22 
23 static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
24 				   pte_t *ptep, pte_t pte)
25 {
26 	set_pte_at(mm, addr, ptep, pte);
27 }
28 
29 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
30 					    unsigned long addr, pte_t *ptep)
31 {
32 	return ptep_get_and_clear(mm, addr, ptep);
33 }
34 
35 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
36 					 unsigned long addr, pte_t *ptep)
37 {
38 }
39 
40 static inline int huge_pte_none(pte_t pte)
41 {
42 	return pte_none(pte);
43 }
44 
45 static inline pte_t huge_pte_wrprotect(pte_t pte)
46 {
47 	return pte_wrprotect(pte);
48 }
49 
50 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
51 					   unsigned long addr, pte_t *ptep)
52 {
53 	ptep_set_wrprotect(mm, addr, ptep);
54 }
55 
56 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
57 					     unsigned long addr, pte_t *ptep,
58 					     pte_t pte, int dirty)
59 {
60 	return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
61 }
62 
63 static inline pte_t huge_ptep_get(pte_t *ptep)
64 {
65 	return *ptep;
66 }
67 
68 static inline void arch_clear_hugepage_flags(struct page *page)
69 {
70 }
71 
72 #endif /* _ASM_IA64_HUGETLB_H */
73