| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASM_PARISC64_HUGETLB_H |
| 3 | #define _ASM_PARISC64_HUGETLB_H |
| 4 | |
| 5 | #include <asm/page.h> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 6 | |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 7 | #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 8 | void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, |
| 9 | pte_t *ptep, pte_t pte); |
| 10 | |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 11 | #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 12 | pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, |
| 13 | pte_t *ptep); |
| 14 | |
| 15 | static inline int is_hugepage_only_range(struct mm_struct *mm, |
| 16 | unsigned long addr, |
| 17 | unsigned long len) { |
| 18 | return 0; |
| 19 | } |
| 20 | |
| 21 | /* |
| 22 | * If the arch doesn't supply something else, assume that hugepage |
| 23 | * size aligned regions are ok without further preparation. |
| 24 | */ |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 25 | #define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 26 | static inline int prepare_hugepage_range(struct file *file, |
| 27 | unsigned long addr, unsigned long len) |
| 28 | { |
| 29 | if (len & ~HPAGE_MASK) |
| 30 | return -EINVAL; |
| 31 | if (addr & ~HPAGE_MASK) |
| 32 | return -EINVAL; |
| 33 | return 0; |
| 34 | } |
| 35 | |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 36 | #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 37 | static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, |
| 38 | unsigned long addr, pte_t *ptep) |
| 39 | { |
| 40 | } |
| 41 | |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 42 | #define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 43 | void huge_ptep_set_wrprotect(struct mm_struct *mm, |
| 44 | unsigned long addr, pte_t *ptep); |
| 45 | |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 46 | #define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 47 | int huge_ptep_set_access_flags(struct vm_area_struct *vma, |
| 48 | unsigned long addr, pte_t *ptep, |
| 49 | pte_t pte, int dirty); |
| 50 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 51 | static inline void arch_clear_hugepage_flags(struct page *page) |
| 52 | { |
| 53 | } |
| 54 | |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 55 | #include <asm-generic/hugetlb.h> |
| 56 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 57 | #endif /* _ASM_PARISC64_HUGETLB_H */ |