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
23#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
24static 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
30static 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
38static 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
51void 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