1*8ba8994eSMatt Turner /* SPDX-License-Identifier: GPL-2.0 */ 2*8ba8994eSMatt Turner #ifndef _ALPHA_HUGETLB_H 3*8ba8994eSMatt Turner #define _ALPHA_HUGETLB_H 4*8ba8994eSMatt Turner 5*8ba8994eSMatt Turner #include <asm/page.h> 6*8ba8994eSMatt Turner 7*8ba8994eSMatt Turner pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags); 8*8ba8994eSMatt Turner #define arch_make_huge_pte arch_make_huge_pte 9*8ba8994eSMatt Turner 10*8ba8994eSMatt Turner #define __HAVE_ARCH_HUGE_PTEP_GET 11*8ba8994eSMatt Turner extern pte_t huge_ptep_get(struct mm_struct *mm, unsigned long addr, 12*8ba8994eSMatt Turner pte_t *ptep); 13*8ba8994eSMatt Turner #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT 14*8ba8994eSMatt Turner extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, 15*8ba8994eSMatt Turner pte_t *ptep, pte_t pte, unsigned long sz); 16*8ba8994eSMatt Turner #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR 17*8ba8994eSMatt Turner extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, 18*8ba8994eSMatt Turner pte_t *ptep, unsigned long sz); 19*8ba8994eSMatt Turner #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH 20*8ba8994eSMatt Turner extern pte_t huge_ptep_clear_flush(struct vm_area_struct *vma, 21*8ba8994eSMatt Turner unsigned long addr, pte_t *ptep); 22*8ba8994eSMatt Turner #define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT 23*8ba8994eSMatt Turner extern void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, 24*8ba8994eSMatt Turner pte_t *ptep); 25*8ba8994eSMatt Turner #define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS 26*8ba8994eSMatt Turner extern int huge_ptep_set_access_flags(struct vm_area_struct *vma, 27*8ba8994eSMatt Turner unsigned long addr, pte_t *ptep, 28*8ba8994eSMatt Turner pte_t pte, int dirty); 29*8ba8994eSMatt Turner #define __HAVE_ARCH_HUGE_PTE_CLEAR 30*8ba8994eSMatt Turner extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr, 31*8ba8994eSMatt Turner pte_t *ptep, unsigned long sz); 32*8ba8994eSMatt Turner 33*8ba8994eSMatt Turner /* 34*8ba8994eSMatt Turner * The generic version does not flush, which would leave the old translation 35*8ba8994eSMatt Turner * live across a restrictive change to PTE bits <15:0>. 36*8ba8994eSMatt Turner */ 37*8ba8994eSMatt Turner #define huge_ptep_modify_prot_start huge_ptep_modify_prot_start 38*8ba8994eSMatt Turner extern pte_t huge_ptep_modify_prot_start(struct vm_area_struct *vma, 39*8ba8994eSMatt Turner unsigned long addr, pte_t *ptep); 40*8ba8994eSMatt Turner 41*8ba8994eSMatt Turner #include <asm-generic/hugetlb.h> 42*8ba8994eSMatt Turner 43*8ba8994eSMatt Turner #endif /* _ALPHA_HUGETLB_H */ 44