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
8 struct pud_huge_patch_entry {
9 unsigned int addr;
10 unsigned int insn;
11 };
12 extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
13 #endif
14
15 #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
16 void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
17 pte_t *ptep, pte_t pte, unsigned long sz);
18 void __set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
19 pte_t *ptep, pte_t pte);
20
21 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
22 pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
23 pte_t *ptep);
24
25 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
26 static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
27 unsigned long addr, pte_t *ptep)
28 {
29 return *ptep;
30 }
31
32 #define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
33 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
34 unsigned long addr, pte_t *ptep)
35 {
36 pte_t old_pte = *ptep;
37 __set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
38 }
39
40 #define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
41 static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
42 unsigned long addr, pte_t *ptep,
43 pte_t pte, int dirty)
44 {
45 int changed = !pte_same(*ptep, pte);
46 if (changed) {
47 __set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
48 flush_tlb_page(vma, addr);
49 }
50 return changed;
51 }
52
53 #define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
54 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
55 unsigned long end, unsigned long floor,
56 unsigned long ceiling);
57
58 #include <asm-generic/hugetlb.h>
59
60 #endif /* _ASM_SPARC64_HUGETLB_H */
61
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