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); 32void flush_dcache_folio(struct folio *folio); 33#define flush_dcache_folio flush_dcache_folio 34 35extern void flush_icache_range(unsigned long start, unsigned long end); 36void 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_vmap_early(start, end) do { } while (0) 42#define flush_cache_vunmap(start, end) flush_dcache_range(start, end) 43 44extern void copy_to_user_page(struct vm_area_struct *vma, struct page *page, 45 unsigned long user_vaddr, 46 void *dst, void *src, int len); 47extern void copy_from_user_page(struct vm_area_struct *vma, struct page *page, 48 unsigned long user_vaddr, 49 void *dst, void *src, int len); 50 51extern void flush_dcache_range(unsigned long start, unsigned long end); 52extern void invalidate_dcache_range(unsigned long start, unsigned long end); 53 54#define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages) 55#define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages) 56#define flush_dcache_mmap_lock_irqsave(mapping, flags) \ 57 xa_lock_irqsave(&mapping->i_pages, flags) 58#define flush_dcache_mmap_unlock_irqrestore(mapping, flags) \ 59 xa_unlock_irqrestore(&mapping->i_pages, flags) 60 61#endif /* _ASM_NIOS2_CACHEFLUSH_H */ 62