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(mm,addr,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
21static inline pte_t huge_ptep_get(struct mm_struct *mm, unsigned long addr, 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 */

 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
21static 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 */