cacheflush.h (1930B)
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 21struct mm_struct; 22 23extern void flush_cache_all(void); 24extern void flush_cache_mm(struct mm_struct *mm); 25extern void flush_cache_dup_mm(struct mm_struct *mm); 26extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, 27 unsigned long end); 28extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, 29 unsigned long pfn); 30#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 31void flush_dcache_page(struct page *page); 32 33extern void flush_icache_range(unsigned long start, unsigned long end); 34extern 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 39extern 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); 42extern 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 46extern void flush_dcache_range(unsigned long start, unsigned long end); 47extern 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 */