/* * include/asm-v850/cacheflush.h * *  Copyright (C) 2001,02,03  NEC Electronics Corporation *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org> * * 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. * * Written by Miles Bader <miles@gnu.org> */ #ifndef __V850_CACHEFLUSH_H__#define __V850_CACHEFLUSH_H__ /* Somebody depends on this; sigh...  */#include <linux/mm.h> #include <asm/machdep.h>  /* The following are all used by the kernel in ways that only affect   systems with MMUs, so we don't need them.  */#define flush_cache_all()			((void)0)#define flush_cache_mm(mm)			((void)0)#define flush_cache_dup_mm(mm)			((void)0)#define flush_cache_range(vma, start, end)	((void)0)#define flush_cache_page(vma, vmaddr, pfn)	((void)0)#define flush_dcache_page(page)			((void)0)#define flush_dcache_mmap_lock(mapping)		((void)0)#define flush_dcache_mmap_unlock(mapping)	((void)0)#define flush_cache_vmap(start, end)		((void)0)#define flush_cache_vunmap(start, end)		((void)0) #ifdef CONFIG_NO_CACHE /* Some systems have no cache at all, in which case we don't need these   either.  */#define flush_icache()				((void)0)#define flush_icache_range(start, end)		((void)0)#define flush_icache_page(vma,pg)		((void)0)#define flush_icache_user_range(vma,pg,adr,len)	((void)0)#define flush_cache_sigtramp(vaddr)		((void)0) #else /* !CONFIG_NO_CACHE */ struct page;struct mm_struct;struct vm_area_struct; /* Otherwise, somebody had better define them.  */extern void flush_icache (void);extern void flush_icache_range (unsigned long start, unsigned long end);extern void flush_icache_page (struct vm_area_struct *vma, struct page *page);extern void flush_icache_user_range (struct vm_area_struct *vma,				     struct page *page,				     unsigned long adr, int len);extern void flush_cache_sigtramp (unsigned long addr); #endif /* CONFIG_NO_CACHE */ #define copy_to_user_page(vma, page, vaddr, dst, src, len) \do { memcpy(dst, src, len); \     flush_icache_user_range(vma, page, vaddr, len); \} while (0)#define copy_from_user_page(vma, page, vaddr, dst, src, len) \	memcpy(dst, src, len) #endif /* __V850_CACHEFLUSH_H__ */