1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_POWERPC_HUGETLB_H
3 #define _ASM_POWERPC_HUGETLB_H
5 #ifdef CONFIG_HUGETLB_PAGE
8 #ifdef CONFIG_PPC_BOOK3S_64
9 #include <asm/book3s/64/hugetlb.h>
10 #elif defined(CONFIG_PPC_FSL_BOOK3E)
11 #include <asm/nohash/hugetlb-book3e.h>
12 #elif defined(CONFIG_PPC_8xx)
13 #include <asm/nohash/32/hugetlb-8xx.h>
14 #endif /* CONFIG_PPC_BOOK3S_64 */
16 extern bool hugetlb_disabled;
18 void hugetlbpage_init_default(void);
20 int slice_is_hugepage_only_range(struct mm_struct *mm, unsigned long addr,
23 static inline int is_hugepage_only_range(struct mm_struct *mm,
27 if (IS_ENABLED(CONFIG_PPC_MM_SLICES) && !radix_enabled())
28 return slice_is_hugepage_only_range(mm, addr, len);
31 #define is_hugepage_only_range is_hugepage_only_range
33 #define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
34 void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
35 unsigned long end, unsigned long floor,
36 unsigned long ceiling);
38 #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
39 static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
40 unsigned long addr, pte_t *ptep)
42 return __pte(pte_update(mm, addr, ptep, ~0UL, 0, 1));
45 #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
46 static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
47 unsigned long addr, pte_t *ptep)
49 huge_ptep_get_and_clear(vma->vm_mm, addr, ptep);
50 flush_hugetlb_page(vma, addr);
53 #define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
54 int huge_ptep_set_access_flags(struct vm_area_struct *vma,
55 unsigned long addr, pte_t *ptep,
56 pte_t pte, int dirty);
58 void gigantic_hugetlb_cma_reserve(void) __init;
59 #include <asm-generic/hugetlb.h>
61 #else /* ! CONFIG_HUGETLB_PAGE */
62 static inline void flush_hugetlb_page(struct vm_area_struct *vma,
67 #define hugepd_shift(x) 0
68 static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr,
75 static inline void __init gigantic_hugetlb_cma_reserve(void)
79 #endif /* CONFIG_HUGETLB_PAGE */
81 #endif /* _ASM_POWERPC_HUGETLB_H */