18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * arch/arm64/include/asm/hugetlb.h 48c2ecf20Sopenharmony_ci * 58c2ecf20Sopenharmony_ci * Copyright (C) 2013 Linaro Ltd. 68c2ecf20Sopenharmony_ci * 78c2ecf20Sopenharmony_ci * Based on arch/x86/include/asm/hugetlb.h 88c2ecf20Sopenharmony_ci */ 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ci#ifndef __ASM_HUGETLB_H 118c2ecf20Sopenharmony_ci#define __ASM_HUGETLB_H 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ci#include <asm/page.h> 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ci#ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION 168c2ecf20Sopenharmony_ci#define arch_hugetlb_migration_supported arch_hugetlb_migration_supported 178c2ecf20Sopenharmony_ciextern bool arch_hugetlb_migration_supported(struct hstate *h); 188c2ecf20Sopenharmony_ci#endif 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_cistatic inline void arch_clear_hugepage_flags(struct page *page) 218c2ecf20Sopenharmony_ci{ 228c2ecf20Sopenharmony_ci clear_bit(PG_dcache_clean, &page->flags); 238c2ecf20Sopenharmony_ci} 248c2ecf20Sopenharmony_ci#define arch_clear_hugepage_flags arch_clear_hugepage_flags 258c2ecf20Sopenharmony_ci 268c2ecf20Sopenharmony_ciextern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma, 278c2ecf20Sopenharmony_ci struct page *page, int writable); 288c2ecf20Sopenharmony_ci#define arch_make_huge_pte arch_make_huge_pte 298c2ecf20Sopenharmony_ci#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT 308c2ecf20Sopenharmony_ciextern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, 318c2ecf20Sopenharmony_ci pte_t *ptep, pte_t pte); 328c2ecf20Sopenharmony_ci#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS 338c2ecf20Sopenharmony_ciextern int huge_ptep_set_access_flags(struct vm_area_struct *vma, 348c2ecf20Sopenharmony_ci unsigned long addr, pte_t *ptep, 358c2ecf20Sopenharmony_ci pte_t pte, int dirty); 368c2ecf20Sopenharmony_ci#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR 378c2ecf20Sopenharmony_ciextern pte_t huge_ptep_get_and_clear(struct mm_struct *mm, 388c2ecf20Sopenharmony_ci unsigned long addr, pte_t *ptep); 398c2ecf20Sopenharmony_ci#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT 408c2ecf20Sopenharmony_ciextern void huge_ptep_set_wrprotect(struct mm_struct *mm, 418c2ecf20Sopenharmony_ci unsigned long addr, pte_t *ptep); 428c2ecf20Sopenharmony_ci#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH 438c2ecf20Sopenharmony_ciextern void huge_ptep_clear_flush(struct vm_area_struct *vma, 448c2ecf20Sopenharmony_ci unsigned long addr, pte_t *ptep); 458c2ecf20Sopenharmony_ci#define __HAVE_ARCH_HUGE_PTE_CLEAR 468c2ecf20Sopenharmony_ciextern void huge_pte_clear(struct mm_struct *mm, unsigned long addr, 478c2ecf20Sopenharmony_ci pte_t *ptep, unsigned long sz); 488c2ecf20Sopenharmony_ciextern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr, 498c2ecf20Sopenharmony_ci pte_t *ptep, pte_t pte, unsigned long sz); 508c2ecf20Sopenharmony_ci#define set_huge_swap_pte_at set_huge_swap_pte_at 518c2ecf20Sopenharmony_ci 528c2ecf20Sopenharmony_civoid __init arm64_hugetlb_cma_reserve(void); 538c2ecf20Sopenharmony_ci 548c2ecf20Sopenharmony_ci#include <asm-generic/hugetlb.h> 558c2ecf20Sopenharmony_ci 568c2ecf20Sopenharmony_ci#endif /* __ASM_HUGETLB_H */ 57