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 void flush_dcache_page(struct page *page); 32 void flush_dcache_folio(struct folio *folio); 33 #define flush_dcache_folio flush_dcache_folio 34 35 extern void flush_icache_range(unsigned long start, unsigned long end); 36 void flush_icache_pages(struct vm_area_struct *vma, struct page *page, 37 unsigned int nr); 38 #define flush_icache_pages flush_icache_pages 39 40 #define flush_cache_vmap(start, end) flush_dcache_range(start, end) 41 #define flush_cache_vunmap(start, end) flush_dcache_range(start, end) 42 43 extern void copy_to_user_page(struct vm_area_struct *vma, struct page *page, 44 unsigned long user_vaddr, 45 void *dst, void *src, int len); 46 extern void copy_from_user_page(struct vm_area_struct *vma, struct page *page, 47 unsigned long user_vaddr, 48 void *dst, void *src, int len); 49 50 extern void flush_dcache_range(unsigned long start, unsigned long end); 51 extern void invalidate_dcache_range(unsigned long start, unsigned long end); 52 53 #define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages) 54 #define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages) 55 #define flush_dcache_mmap_lock_irqsave(mapping, flags) \ 56 xa_lock_irqsave(&mapping->i_pages, flags) 57 #define flush_dcache_mmap_unlock_irqrestore(mapping, flags) \ 58 xa_unlock_irqrestore(&mapping->i_pages, flags) 59 60 #endif /* _ASM_NIOS2_CACHEFLUSH_H */ 61
