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review.trustedfirmware.org / hafnium / third_party / linux / 157378f43faad830e4aa3815bde5fa9f9a9f5be6 / . / arch / arm64 / include / asm / hugetlb.h
blob: 5abf91e3494c788e55e7289bec2f20a36f9beca5 [file] [log] [blame]
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0-only */
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]2/*
3 * arch/arm64/include/asm/hugetlb.h
4 *
5 * Copyright (C) 2013 Linaro Ltd.
6 *
7 * Based on arch/x86/include/asm/hugetlb.h
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]8 */
9
10#ifndef __ASM_HUGETLB_H
11#define __ASM_HUGETLB_H
12
13#include <asm/page.h>
14
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]15#ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
16#define arch_hugetlb_migration_supported arch_hugetlb_migration_supported
17extern bool arch_hugetlb_migration_supported(struct hstate *h);
18#endif
19
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]20static inline void arch_clear_hugepage_flags(struct page *page)
21{
22 clear_bit(PG_dcache_clean, &page->flags);
23}
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame^]24#define arch_clear_hugepage_flags arch_clear_hugepage_flags
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]25
26extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
27 struct page *page, int writable);
28#define arch_make_huge_pte arch_make_huge_pte
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]29#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]30extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
31 pte_t *ptep, pte_t pte);
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]32#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]33extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
34 unsigned long addr, pte_t *ptep,
35 pte_t pte, int dirty);
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]36#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]37extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
38 unsigned long addr, pte_t *ptep);
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]39#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]40extern void huge_ptep_set_wrprotect(struct mm_struct *mm,
41 unsigned long addr, pte_t *ptep);
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]42#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]43extern void huge_ptep_clear_flush(struct vm_area_struct *vma,
44 unsigned long addr, pte_t *ptep);
David Brazdil0f672f62019-12-10 10:32:29 +0000[diff] [blame]45#define __HAVE_ARCH_HUGE_PTE_CLEAR
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]46extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
47 pte_t *ptep, unsigned long sz);
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]48extern void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr,
49 pte_t *ptep, pte_t pte, unsigned long sz);
50#define set_huge_swap_pte_at set_huge_swap_pte_at
51
Olivier Deprez157378f2022-04-04 15:47:50 +0200[diff] [blame^]52void __init arm64_hugetlb_cma_reserve(void);
53
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]54#include <asm-generic/hugetlb.h>
55
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]56#endif /* __ASM_HUGETLB_H */