/* * Copyright (C) 2003 Microtronix Datacom Ltd. * Copyright (C) 2000-2002 Greg Ungerer <gerg@snapgear.com> * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #ifndef _ASM_NIOS2_CACHEFLUSH_H#define _ASM_NIOS2_CACHEFLUSH_H #include <linux/mm_types.h> /* * This flag is used to indicate that the page pointed to by a pte is clean * and does not require cleaning before returning it to the user. */#define PG_dcache_clean PG_arch_1 struct mm_struct; extern void flush_cache_all(void);extern void flush_cache_mm(struct mm_struct *mm);extern void flush_cache_dup_mm(struct mm_struct *mm);extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start,	unsigned long end);extern void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr,	unsigned long pfn);#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1void flush_dcache_page(struct page *page);void flush_dcache_folio(struct folio *folio);#define flush_dcache_folio flush_dcache_folio extern void flush_icache_range(unsigned long start, unsigned long end);void flush_icache_pages(struct vm_area_struct *vma, struct page *page,		unsigned int nr);#define flush_icache_pages flush_icache_pages #define flush_cache_vmap(start, end)		flush_dcache_range(start, end)#define flush_cache_vmap_early(start, end)	do { } while (0)#define flush_cache_vunmap(start, end)		flush_dcache_range(start, end) extern void copy_to_user_page(struct vm_area_struct *vma, struct page *page,				unsigned long user_vaddr,				void *dst, void *src, int len);extern void copy_from_user_page(struct vm_area_struct *vma, struct page *page,				unsigned long user_vaddr,				void *dst, void *src, int len); extern void flush_dcache_range(unsigned long start, unsigned long end);extern void invalidate_dcache_range(unsigned long start, unsigned long end); #define flush_dcache_mmap_lock(mapping)		xa_lock_irq(&mapping->i_pages)#define flush_dcache_mmap_unlock(mapping)	xa_unlock_irq(&mapping->i_pages)#define flush_dcache_mmap_lock_irqsave(mapping, flags)		\		xa_lock_irqsave(&mapping->i_pages, flags)#define flush_dcache_mmap_unlock_irqrestore(mapping, flags)	\		xa_unlock_irqrestore(&mapping->i_pages, flags) #endif /* _ASM_NIOS2_CACHEFLUSH_H */