| /* SPDX-License-Identifier: GPL-2.0-only */ | |
| /* | |
| * arch/arm/include/asm/hugetlb-3level.h | |
| * | |
| * Copyright (C) 2012 ARM Ltd. | |
| * | |
| * Based on arch/x86/include/asm/hugetlb.h. | |
| */ | |
| #ifndef _ASM_ARM_HUGETLB_3LEVEL_H | |
| #define _ASM_ARM_HUGETLB_3LEVEL_H | |
| /* | |
| * If our huge pte is non-zero then mark the valid bit. | |
| * This allows pte_present(huge_ptep_get(mm,addr,ptep)) to return true for non-zero | |
| * ptes. | |
| * (The valid bit is automatically cleared by set_pte_at for PROT_NONE ptes). | |
| */ | |
| #define __HAVE_ARCH_HUGE_PTEP_GET | |
| static inline pte_t huge_ptep_get(struct mm_struct *mm, unsigned long addr, pte_t *ptep) | |
| { | |
| pte_t retval = *ptep; | |
| if (pte_val(retval)) | |
| pte_val(retval) |= L_PTE_VALID; | |
| return retval; | |
| } | |
| #endif /* _ASM_ARM_HUGETLB_3LEVEL_H */ |