1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef _ASM_SPARC64_HUGETLB_H
3*4882a593Smuzhiyun #define _ASM_SPARC64_HUGETLB_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include <asm/page.h>
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #ifdef CONFIG_HUGETLB_PAGE
8*4882a593Smuzhiyun struct pud_huge_patch_entry {
9*4882a593Smuzhiyun unsigned int addr;
10*4882a593Smuzhiyun unsigned int insn;
11*4882a593Smuzhiyun };
12*4882a593Smuzhiyun extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
13*4882a593Smuzhiyun #endif
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
16*4882a593Smuzhiyun void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
17*4882a593Smuzhiyun pte_t *ptep, pte_t pte);
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
20*4882a593Smuzhiyun pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
21*4882a593Smuzhiyun pte_t *ptep);
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
huge_ptep_clear_flush(struct vm_area_struct * vma,unsigned long addr,pte_t * ptep)24*4882a593Smuzhiyun static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
25*4882a593Smuzhiyun unsigned long addr, pte_t *ptep)
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun }
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun #define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
huge_ptep_set_wrprotect(struct mm_struct * mm,unsigned long addr,pte_t * ptep)30*4882a593Smuzhiyun static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
31*4882a593Smuzhiyun unsigned long addr, pte_t *ptep)
32*4882a593Smuzhiyun {
33*4882a593Smuzhiyun pte_t old_pte = *ptep;
34*4882a593Smuzhiyun set_huge_pte_at(mm, addr, ptep, pte_wrprotect(old_pte));
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun #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*4882a593Smuzhiyun static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
39*4882a593Smuzhiyun unsigned long addr, pte_t *ptep,
40*4882a593Smuzhiyun pte_t pte, int dirty)
41*4882a593Smuzhiyun {
42*4882a593Smuzhiyun int changed = !pte_same(*ptep, pte);
43*4882a593Smuzhiyun if (changed) {
44*4882a593Smuzhiyun set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
45*4882a593Smuzhiyun flush_tlb_page(vma, addr);
46*4882a593Smuzhiyun }
47*4882a593Smuzhiyun return changed;
48*4882a593Smuzhiyun }
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun #define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
51*4882a593Smuzhiyun void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
52*4882a593Smuzhiyun unsigned long end, unsigned long floor,
53*4882a593Smuzhiyun unsigned long ceiling);
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun #include <asm-generic/hugetlb.h>
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun #endif /* _ASM_SPARC64_HUGETLB_H */
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