1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_RISCV_HUGETLB_H
3 #define _ASM_RISCV_HUGETLB_H
4
5 #include <asm/cacheflush.h>
6 #include <asm/page.h>
7
8 static inline void arch_clear_hugetlb_flags(struct folio *folio)
9 {
10 clear_bit(PG_dcache_clean, &folio->flags);
11 }
12 #define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
13
14 #ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
15 bool arch_hugetlb_migration_supported(struct hstate *h);
16 #define arch_hugetlb_migration_supported arch_hugetlb_migration_supported
17 #endif
18
19 #ifdef CONFIG_RISCV_ISA_SVNAPOT
20 #define __HAVE_ARCH_HUGE_PTE_CLEAR
21 void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
22 pte_t *ptep, unsigned long sz);
23
24 #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
25 void set_huge_pte_at(struct mm_struct *mm,
26 unsigned long addr, pte_t *ptep, pte_t pte,
27 unsigned long sz);
28
29 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
30 pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
31 unsigned long addr, pte_t *ptep);
32
33 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
34 pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
35 unsigned long addr, pte_t *ptep);
36
37 #define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
38 void huge_ptep_set_wrprotect(struct mm_struct *mm,
39 unsigned long addr, pte_t *ptep);
40
41 #define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
42 int huge_ptep_set_access_flags(struct vm_area_struct *vma,
43 unsigned long addr, pte_t *ptep,
44 pte_t pte, int dirty);
45
46 #define __HAVE_ARCH_HUGE_PTEP_GET
47 pte_t huge_ptep_get(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
48
49 pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags);
50 #define arch_make_huge_pte arch_make_huge_pte
51
52 #endif /*CONFIG_RISCV_ISA_SVNAPOT*/
53
54 #include <asm-generic/hugetlb.h>
55
56 #endif /* _ASM_RISCV_HUGETLB_H */
57
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