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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
| commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
| tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /arch/arm64/include/asm/hugetlb.h | |
| parent | Initial commit. (diff) | |
| download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip | |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm64/include/asm/hugetlb.h')
| -rw-r--r-- | arch/arm64/include/asm/hugetlb.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h new file mode 100644 index 0000000000..2ddc33d93b --- /dev/null +++ b/arch/arm64/include/asm/hugetlb.h @@ -0,0 +1,79 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * arch/arm64/include/asm/hugetlb.h + * + * Copyright (C) 2013 Linaro Ltd. + * + * Based on arch/x86/include/asm/hugetlb.h + */ + +#ifndef __ASM_HUGETLB_H +#define __ASM_HUGETLB_H + +#include <asm/cacheflush.h> +#include <asm/page.h> + +#ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION +#define arch_hugetlb_migration_supported arch_hugetlb_migration_supported +extern bool arch_hugetlb_migration_supported(struct hstate *h); +#endif + +static inline void arch_clear_hugepage_flags(struct page *page) +{ + clear_bit(PG_dcache_clean, &page->flags); +} +#define arch_clear_hugepage_flags arch_clear_hugepage_flags + +pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags); +#define arch_make_huge_pte arch_make_huge_pte +#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT +extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte, unsigned long sz); +#define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS +extern int huge_ptep_set_access_flags(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep, + pte_t pte, int dirty); +#define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR +extern pte_t huge_ptep_get_and_clear(struct mm_struct *mm, + unsigned long addr, pte_t *ptep); +#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT +extern void huge_ptep_set_wrprotect(struct mm_struct *mm, + unsigned long addr, pte_t *ptep); +#define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH +extern pte_t huge_ptep_clear_flush(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep); +#define __HAVE_ARCH_HUGE_PTE_CLEAR +extern void huge_pte_clear(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, unsigned long sz); +#define __HAVE_ARCH_HUGE_PTEP_GET +extern pte_t huge_ptep_get(pte_t *ptep); + +void __init arm64_hugetlb_cma_reserve(void); + +#define huge_ptep_modify_prot_start huge_ptep_modify_prot_start +extern pte_t huge_ptep_modify_prot_start(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep); + +#define huge_ptep_modify_prot_commit huge_ptep_modify_prot_commit +extern void huge_ptep_modify_prot_commit(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep, + pte_t old_pte, pte_t new_pte); + +#include <asm-generic/hugetlb.h> + +#define __HAVE_ARCH_FLUSH_HUGETLB_TLB_RANGE +static inline void flush_hugetlb_tlb_range(struct vm_area_struct *vma, + unsigned long start, + unsigned long end) +{ + unsigned long stride = huge_page_size(hstate_vma(vma)); + + if (stride == PMD_SIZE) + __flush_tlb_range(vma, start, end, stride, false, 2); + else if (stride == PUD_SIZE) + __flush_tlb_range(vma, start, end, stride, false, 1); + else + __flush_tlb_range(vma, start, end, PAGE_SIZE, false, 0); +} + +#endif /* __ASM_HUGETLB_H */ |