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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_SPARC64_HUGETLB_H
3#define _ASM_SPARC64_HUGETLB_H
4
5#include <asm/page.h>
6
7#ifdef CONFIG_HUGETLB_PAGE
8struct pud_huge_patch_entry {
9 unsigned int addr;
10 unsigned int insn;
11};
12extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
13#endif
14
15#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
16void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
17 pte_t *ptep, pte_t pte);
18
19#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
20pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
21 pte_t *ptep);
22
23static inline int is_hugepage_only_range(struct mm_struct *mm,
24 unsigned long addr,
25 unsigned long len) {
26 return 0;
27}
28
29#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
30static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
31 unsigned long addr, pte_t *ptep)
32{
33}
34
35#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
36static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
37 unsigned long addr, pte_t *ptep)
38{
39 pte_t old_pte = *ptep;
40 set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
41}
42
43#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
44static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
45 unsigned long addr, pte_t *ptep,
46 pte_t pte, int dirty)
47{
48 int changed = !pte_same(*ptep, pte);
49 if (changed) {
50 set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
51 flush_tlb_page(vma, addr);
52 }
53 return changed;
54}
55
56static inline void arch_clear_hugepage_flags(struct page *page)
57{
58}
59
60#define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
61void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
62 unsigned long end, unsigned long floor,
63 unsigned long ceiling);
64
65#include <asm-generic/hugetlb.h>
66
67#endif /* _ASM_SPARC64_HUGETLB_H */