projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1355e2a6 CM |
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 | ||
| 30 | static 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 | ||
| 39 | static inline int is_hugepage_only_range(struct mm_struct *mm, | |
| 40 | unsigned long addr, unsigned long len) | |
| 41 | { | |
| 42 | return 0; | |
| 43 | } | |
| 44 | ||
| 45 | static 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 | ||
| 1355e2a6 CM |
56 | static inline int huge_pte_none(pte_t pte) |
| 57 | { | |
| 58 | return pte_none(pte); | |
| 59 | } | |
| 60 | ||
| 61 | static inline pte_t huge_pte_wrprotect(pte_t pte) | |
| 62 | { | |
| 63 | return pte_wrprotect(pte); | |
| 64 | } | |
| 65 | ||
| 1355e2a6 CM |
66 | static 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 */ |