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