1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * arch/arm/include/asm/hugetlb.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_H
11#define _ASM_ARM_HUGETLB_H
12
13#include <asm/cacheflush.h>
14#include <asm/page.h>
15#include <asm/hugetlb-3level.h>
16#include <asm-generic/hugetlb.h>
17
18static inline void arch_clear_hugetlb_flags(struct folio *folio)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
19{
20	clear_bit(PG_dcache_clean, &folio->flags);
21}
22#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
23
24#endif /* _ASM_ARM_HUGETLB_H */

 
 1/*
 2 * arch/arm/include/asm/hugetlb.h
 3 *
 4 * Copyright (C) 2012 ARM Ltd.
 5 *
 6 * Based on arch/x86/include/asm/hugetlb.h
 7 *
 8 * This program is free software; you can redistribute it and/or modify
 9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#ifndef _ASM_ARM_HUGETLB_H
23#define _ASM_ARM_HUGETLB_H
24
 
25#include <asm/page.h>
 
26#include <asm-generic/hugetlb.h>
27
28#include <asm/hugetlb-3level.h>
29
30static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
31					  unsigned long addr, unsigned long end,
32					  unsigned long floor,
33					  unsigned long ceiling)
34{
35	free_pgd_range(tlb, addr, end, floor, ceiling);
36}
37
38
39static inline int is_hugepage_only_range(struct mm_struct *mm,
40					 unsigned long addr, unsigned long len)
41{
42	return 0;
43}
44
45static inline int prepare_hugepage_range(struct file *file,
46					 unsigned long addr, unsigned long len)
47{
48	struct hstate *h = hstate_file(file);
49	if (len & ~huge_page_mask(h))
50		return -EINVAL;
51	if (addr & ~huge_page_mask(h))
52		return -EINVAL;
53	return 0;
54}
55
56static inline int huge_pte_none(pte_t pte)
57{
58	return pte_none(pte);
59}
60
61static inline pte_t huge_pte_wrprotect(pte_t pte)
62{
63	return pte_wrprotect(pte);
64}
65
66static inline void arch_clear_hugepage_flags(struct page *page)
67{
68	clear_bit(PG_dcache_clean, &page->flags);
69}
 
70
71#endif /* _ASM_ARM_HUGETLB_H */