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 49 #define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages) 50 #define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages) 51 52 #endif /* _ASM_NIOS2_CACHEFLUSH_H */ 53