| /* 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 */ |
