/* * 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 1 void 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_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 */