1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * arch/arm/include/asm/hugetlb-3level.h 4 * 5 * Copyright (C) 2012 ARM Ltd. 6 * 7 * Based on arch/x86/include/asm/hugetlb.h. 8 */ 9 10 #ifndef _ASM_ARM_HUGETLB_3LEVEL_H 11 #define _ASM_ARM_HUGETLB_3LEVEL_H 12 13 14 /* 15 * If our huge pte is non-zero then mark the valid bit. 16 * This allows pte_present(huge_ptep_get(ptep)) to return true for non-zero 17 * ptes. 18 * (The valid bit is automatically cleared by set_pte_at for PROT_NONE ptes). 19 */ 20 #define __HAVE_ARCH_HUGE_PTEP_GET 21 static inline pte_t huge_ptep_get(pte_t *ptep) 22 { 23 pte_t retval = *ptep; 24 if (pte_val(retval)) 25 pte_val(retval) |= L_PTE_VALID; 26 return retval; 27 } 28 29 #endif /* _ASM_ARM_HUGETLB_3LEVEL_H */ 30