tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _ASM_SH_HUGETLB_H
2#define _ASM_SH_HUGETLB_H
3
4#include <asm/page.h>
5
6
7static inline int is_hugepage_only_range(struct mm_struct *mm,
8 unsigned long addr,
9 unsigned long len) {
10 return 0;
11}
12
13/*
14 * If the arch doesn't supply something else, assume that hugepage
15 * size aligned regions are ok without further preparation.
16 */
17static inline int prepare_hugepage_range(struct file *file,
18 unsigned long addr, unsigned long len)
19{
20 if (len & ~HPAGE_MASK)
21 return -EINVAL;
22 if (addr & ~HPAGE_MASK)
23 return -EINVAL;
24 return 0;
25}
26
27static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) {
28}
29
30static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
31 unsigned long addr, unsigned long end,
32 unsigned long floor,
33 unsigned long ceiling)
34{
35 free_pgd_range(tlb, addr, end, floor, ceiling);
36}
37
38static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
39 pte_t *ptep, pte_t pte)
40{
41 set_pte_at(mm, addr, ptep, pte);
42}
43
44static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
45 unsigned long addr, pte_t *ptep)
46{
47 return ptep_get_and_clear(mm, addr, ptep);
48}
49
50static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
51 unsigned long addr, pte_t *ptep)
52{
53}
54
55static inline int huge_pte_none(pte_t pte)
56{
57 return pte_none(pte);
58}
59
60static inline pte_t huge_pte_wrprotect(pte_t pte)
61{
62 return pte_wrprotect(pte);
63}
64
65static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
66 unsigned long addr, pte_t *ptep)
67{
68 ptep_set_wrprotect(mm, addr, ptep);
69}
70
71static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
72 unsigned long addr, pte_t *ptep,
73 pte_t pte, int dirty)
74{
75 return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
76}
77
78static inline pte_t huge_ptep_get(pte_t *ptep)
79{
80 return *ptep;
81}
82
83static inline int arch_prepare_hugepage(struct page *page)
84{
85 return 0;
86}
87
88static inline void arch_release_hugepage(struct page *page)
89{
90}
91
92#endif /* _ASM_SH_HUGETLB_H */