#ifndef __ASM_SH_CACHEFLUSH_H#define __ASM_SH_CACHEFLUSH_H #ifdef __KERNEL__ #ifdef CONFIG_CACHE_OFF/* * Nothing to do when the cache is disabled, initial flush and explicit * disabling is handled at CPU init time. * * See arch/sh/kernel/cpu/init.c:cache_init(). */#define p3_cache_init()				do { } while (0)#define flush_cache_all()			do { } while (0)#define flush_cache_mm(mm)			do { } while (0)#define flush_cache_dup_mm(mm)			do { } while (0)#define flush_cache_range(vma, start, end)	do { } while (0)#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)#define flush_dcache_page(page)			do { } while (0)#define flush_icache_range(start, end)		do { } while (0)#define flush_icache_page(vma,pg)		do { } while (0)#define flush_dcache_mmap_lock(mapping)		do { } while (0)#define flush_dcache_mmap_unlock(mapping)	do { } while (0)#define flush_cache_sigtramp(vaddr)		do { } while (0)#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)#define __flush_wback_region(start, size)	do { (void)(start); } while (0)#define __flush_purge_region(start, size)	do { (void)(start); } while (0)#define __flush_invalidate_region(start, size)	do { (void)(start); } while (0)#else#include <asm/cpu/cacheflush.h> /* * Consistent DMA requires that the __flush_xxx() primitives must be set * for any of the enabled non-coherent caches (most of the UP CPUs), * regardless of PIPT or VIPT cache configurations. */ /* Flush (write-back only) a region (smaller than a page) */extern void __flush_wback_region(void *start, int size);/* Flush (write-back & invalidate) a region (smaller than a page) */extern void __flush_purge_region(void *start, int size);/* Flush (invalidate only) a region (smaller than a page) */extern void __flush_invalidate_region(void *start, int size);#endif #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGEstatic inline void flush_kernel_dcache_page(struct page *page){	flush_dcache_page(page);} #if defined(CONFIG_CPU_SH4) && !defined(CONFIG_CACHE_OFF)extern void copy_to_user_page(struct vm_area_struct *vma,	struct page *page, unsigned long vaddr, void *dst, const void *src,	unsigned long len); extern void copy_from_user_page(struct vm_area_struct *vma,	struct page *page, unsigned long vaddr, void *dst, const void *src,	unsigned long len);#else#define copy_to_user_page(vma, page, vaddr, dst, src, len)	\	do {							\		flush_cache_page(vma, vaddr, page_to_pfn(page));\		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)	\	do {							\		flush_cache_page(vma, vaddr, page_to_pfn(page));\		memcpy(dst, src, len);				\	} while (0)#endif #define flush_cache_vmap(start, end)		flush_cache_all()#define flush_cache_vunmap(start, end)		flush_cache_all() #define HAVE_ARCH_UNMAPPED_AREA #endif /* __KERNEL__ */#endif /* __ASM_SH_CACHEFLUSH_H */