| Ley Foon Tan | 93c91cb | 2014-11-06 15:19:48 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2003 Microtronix Datacom Ltd. |
| 3 | * Copyright (C) 2000-2002 Greg Ungerer <gerg@snapgear.com> |
| 4 | * |
| 5 | * This file is subject to the terms and conditions of the GNU General Public |
| 6 | * License. See the file "COPYING" in the main directory of this archive |
| 7 | * for more details. |
| 8 | */ |
| 9 | |
| 10 | #ifndef _ASM_NIOS2_CACHEFLUSH_H |
| 11 | #define _ASM_NIOS2_CACHEFLUSH_H |
| 12 | |
| 13 | #include <linux/mm_types.h> |
| 14 | |
| 15 | /* |
| 16 | * This flag is used to indicate that the page pointed to by a pte is clean |
| 17 | * and does not require cleaning before returning it to the user. |
| 18 | */ |
| 19 | #define PG_dcache_clean PG_arch_1 |
| 20 | |
| 21 | struct mm_struct; |
| 22 | |
| 23 | extern void flush_cache_all(void); |
| 24 | extern void flush_cache_mm(struct mm_struct *mm); |
| 25 | extern void flush_cache_dup_mm(struct mm_struct *mm); |
| 26 | extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, |
| 27 | unsigned long end); |
| 28 | extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, |
| 29 | unsigned long pfn); |
| 30 | #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 |
| 31 | extern void flush_dcache_page(struct page *page); |
| 32 | |
| 33 | extern void flush_icache_range(unsigned long start, unsigned long end); |
| 34 | extern void flush_icache_page(struct vm_area_struct *vma, struct page *page); |
| 35 | |
| 36 | #define flush_cache_vmap(start, end) flush_dcache_range(start, end) |
| 37 | #define flush_cache_vunmap(start, end) flush_dcache_range(start, end) |
| 38 | |
| 39 | extern void copy_to_user_page(struct vm_area_struct *vma, struct page *page, |
| 40 | unsigned long user_vaddr, |
| 41 | void *dst, void *src, int len); |
| 42 | extern void copy_from_user_page(struct vm_area_struct *vma, struct page *page, |
| 43 | unsigned long user_vaddr, |
| 44 | void *dst, void *src, int len); |
| 45 | |
| 46 | extern void flush_dcache_range(unsigned long start, unsigned long end); |
| 47 | extern void invalidate_dcache_range(unsigned long start, unsigned long end); |
| 48 | |
| Julien Beraud | 4b40c1c | 2017-04-05 15:03:44 +0800 | [diff] [blame^] | 49 | #define flush_dcache_mmap_lock(mapping) \ |
| 50 | spin_lock_irq(&(mapping)->tree_lock) |
| 51 | #define flush_dcache_mmap_unlock(mapping) \ |
| 52 | spin_unlock_irq(&(mapping)->tree_lock) |
| Ley Foon Tan | 93c91cb | 2014-11-06 15:19:48 +0800 | [diff] [blame] | 53 | |
| 54 | #endif /* _ASM_NIOS2_CACHEFLUSH_H */ |