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, unsigned long sz);
18void __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
22pte_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
26static 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
33static 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
41static 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
54void 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 */