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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef _ASM_GENERIC_HUGETLB_H3#define _ASM_GENERIC_HUGETLB_H4 5#include <linux/swap.h>6#include <linux/swapops.h>7 8static inline pte_t mk_huge_pte(struct page *page, pgprot_t pgprot)9{10 return mk_pte(page, pgprot);11}12 13static inline unsigned long huge_pte_write(pte_t pte)14{15 return pte_write(pte);16}17 18static inline unsigned long huge_pte_dirty(pte_t pte)19{20 return pte_dirty(pte);21}22 23static inline pte_t huge_pte_mkwrite(pte_t pte)24{25 return pte_mkwrite_novma(pte);26}27 28#ifndef __HAVE_ARCH_HUGE_PTE_WRPROTECT29static inline pte_t huge_pte_wrprotect(pte_t pte)30{31 return pte_wrprotect(pte);32}33#endif34 35static inline pte_t huge_pte_mkdirty(pte_t pte)36{37 return pte_mkdirty(pte);38}39 40static inline pte_t huge_pte_modify(pte_t pte, pgprot_t newprot)41{42 return pte_modify(pte, newprot);43}44 45static inline pte_t huge_pte_mkuffd_wp(pte_t pte)46{47 return huge_pte_wrprotect(pte_mkuffd_wp(pte));48}49 50static inline pte_t huge_pte_clear_uffd_wp(pte_t pte)51{52 return pte_clear_uffd_wp(pte);53}54 55static inline int huge_pte_uffd_wp(pte_t pte)56{57 return pte_uffd_wp(pte);58}59 60#ifndef __HAVE_ARCH_HUGE_PTE_CLEAR61static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,62 pte_t *ptep, unsigned long sz)63{64 pte_clear(mm, addr, ptep);65}66#endif67 68#ifndef __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE69static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,70 unsigned long addr, unsigned long end,71 unsigned long floor, unsigned long ceiling)72{73 free_pgd_range(tlb, addr, end, floor, ceiling);74}75#endif76 77#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT78static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,79 pte_t *ptep, pte_t pte, unsigned long sz)80{81 set_pte_at(mm, addr, ptep, pte);82}83#endif84 85#ifndef __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR86static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,87 unsigned long addr, pte_t *ptep)88{89 return ptep_get_and_clear(mm, addr, ptep);90}91#endif92 93#ifndef __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH94static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,95 unsigned long addr, pte_t *ptep)96{97 return ptep_clear_flush(vma, addr, ptep);98}99#endif100 101#ifndef __HAVE_ARCH_HUGE_PTE_NONE102static inline int huge_pte_none(pte_t pte)103{104 return pte_none(pte);105}106#endif107 108/* Please refer to comments above pte_none_mostly() for the usage */109static inline int huge_pte_none_mostly(pte_t pte)110{111 return huge_pte_none(pte) || is_pte_marker(pte);112}113 114#ifndef __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE115static inline int prepare_hugepage_range(struct file *file,116 unsigned long addr, unsigned long len)117{118 struct hstate *h = hstate_file(file);119 120 if (len & ~huge_page_mask(h))121 return -EINVAL;122 if (addr & ~huge_page_mask(h))123 return -EINVAL;124 125 return 0;126}127#endif128 129#ifndef __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT130static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,131 unsigned long addr, pte_t *ptep)132{133 ptep_set_wrprotect(mm, addr, ptep);134}135#endif136 137#ifndef __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS138static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,139 unsigned long addr, pte_t *ptep,140 pte_t pte, int dirty)141{142 return ptep_set_access_flags(vma, addr, ptep, pte, dirty);143}144#endif145 146#ifndef __HAVE_ARCH_HUGE_PTEP_GET147static inline pte_t huge_ptep_get(struct mm_struct *mm, unsigned long addr, pte_t *ptep)148{149 return ptep_get(ptep);150}151#endif152 153#ifndef __HAVE_ARCH_GIGANTIC_PAGE_RUNTIME_SUPPORTED154static inline bool gigantic_page_runtime_supported(void)155{156 return IS_ENABLED(CONFIG_ARCH_HAS_GIGANTIC_PAGE);157}158#endif /* __HAVE_ARCH_GIGANTIC_PAGE_RUNTIME_SUPPORTED */159 160#endif /* _ASM_GENERIC_HUGETLB_H */161