1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (C) 2003 Microtronix Datacom Ltd. 3*4882a593Smuzhiyun * Copyright (C) 2000-2002 Greg Ungerer <gerg@snapgear.com> 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * This file is subject to the terms and conditions of the GNU General Public 6*4882a593Smuzhiyun * License. See the file "COPYING" in the main directory of this archive 7*4882a593Smuzhiyun * for more details. 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifndef _ASM_NIOS2_CACHEFLUSH_H 11*4882a593Smuzhiyun #define _ASM_NIOS2_CACHEFLUSH_H 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include <linux/mm_types.h> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /* 16*4882a593Smuzhiyun * This flag is used to indicate that the page pointed to by a pte is clean 17*4882a593Smuzhiyun * and does not require cleaning before returning it to the user. 18*4882a593Smuzhiyun */ 19*4882a593Smuzhiyun #define PG_dcache_clean PG_arch_1 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun struct mm_struct; 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun extern void flush_cache_all(void); 24*4882a593Smuzhiyun extern void flush_cache_mm(struct mm_struct *mm); 25*4882a593Smuzhiyun extern void flush_cache_dup_mm(struct mm_struct *mm); 26*4882a593Smuzhiyun extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, 27*4882a593Smuzhiyun unsigned long end); 28*4882a593Smuzhiyun extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, 29*4882a593Smuzhiyun unsigned long pfn); 30*4882a593Smuzhiyun #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 31*4882a593Smuzhiyun extern void flush_dcache_page(struct page *page); 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun extern void flush_icache_range(unsigned long start, unsigned long end); 34*4882a593Smuzhiyun extern void flush_icache_page(struct vm_area_struct *vma, struct page *page); 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun #define flush_cache_vmap(start, end) flush_dcache_range(start, end) 37*4882a593Smuzhiyun #define flush_cache_vunmap(start, end) flush_dcache_range(start, end) 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun extern void copy_to_user_page(struct vm_area_struct *vma, struct page *page, 40*4882a593Smuzhiyun unsigned long user_vaddr, 41*4882a593Smuzhiyun void *dst, void *src, int len); 42*4882a593Smuzhiyun extern void copy_from_user_page(struct vm_area_struct *vma, struct page *page, 43*4882a593Smuzhiyun unsigned long user_vaddr, 44*4882a593Smuzhiyun void *dst, void *src, int len); 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun extern void flush_dcache_range(unsigned long start, unsigned long end); 47*4882a593Smuzhiyun extern void invalidate_dcache_range(unsigned long start, unsigned long end); 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun #define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages) 50*4882a593Smuzhiyun #define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages) 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun #endif /* _ASM_NIOS2_CACHEFLUSH_H */ 53