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

 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 */