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Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_PARISC64_HUGETLB_H
3#define _ASM_PARISC64_HUGETLB_H
4
5#include <asm/page.h>
6#include <asm-generic/hugetlb.h>
7
8
9void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
10 pte_t *ptep, pte_t pte);
11
12pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
13 pte_t *ptep);
14
15static inline int is_hugepage_only_range(struct mm_struct *mm,
16 unsigned long addr,
17 unsigned long len) {
18 return 0;
19}
20
21/*
22 * If the arch doesn't supply something else, assume that hugepage
23 * size aligned regions are ok without further preparation.
24 */
25static inline int prepare_hugepage_range(struct file *file,
26 unsigned long addr, unsigned long len)
27{
28 if (len & ~HPAGE_MASK)
29 return -EINVAL;
30 if (addr & ~HPAGE_MASK)
31 return -EINVAL;
32 return 0;
33}
34
35static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
36 unsigned long addr, unsigned long end,
37 unsigned long floor,
38 unsigned long ceiling)
39{
40 free_pgd_range(tlb, addr, end, floor, ceiling);
41}
42
43static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
44 unsigned long addr, pte_t *ptep)
45{
46}
47
48static inline int huge_pte_none(pte_t pte)
49{
50 return pte_none(pte);
51}
52
53static inline pte_t huge_pte_wrprotect(pte_t pte)
54{
55 return pte_wrprotect(pte);
56}
57
58void huge_ptep_set_wrprotect(struct mm_struct *mm,
59 unsigned long addr, pte_t *ptep);
60
61int huge_ptep_set_access_flags(struct vm_area_struct *vma,
62 unsigned long addr, pte_t *ptep,
63 pte_t pte, int dirty);
64
65static inline pte_t huge_ptep_get(pte_t *ptep)
66{
67 return *ptep;
68}
69
70static inline void arch_clear_hugepage_flags(struct page *page)
71{
72}
73
74#endif /* _ASM_PARISC64_HUGETLB_H */