/* *  This program is free software; you can redistribute it and/or *  modify it under the terms of the GNU General Public License *  as published by the Free Software Foundation; either version *  2 of the License, or (at your option) any later version. */#ifndef _ASM_POWERPC_CACHEFLUSH_H#define _ASM_POWERPC_CACHEFLUSH_H #ifdef __KERNEL__ #include <linux/mm.h>#include <asm/cputable.h> /* * No cache flushing is required when address mappings are changed, * because the caches on PowerPCs are physically addressed. */#define flush_cache_all()			do { } while (0)#define flush_cache_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_icache_page(vma, page)		do { } while (0)#define flush_cache_vmap(start, end)		do { } while (0)#define flush_cache_vunmap(start, end)		do { } while (0) extern void flush_dcache_page(struct page *page);#define flush_dcache_mmap_lock(mapping)		do { } while (0)#define flush_dcache_mmap_unlock(mapping)	do { } while (0) extern void __flush_icache_range(unsigned long, unsigned long);static inline void flush_icache_range(unsigned long start, unsigned long stop){	if (!cpu_has_feature(CPU_FTR_COHERENT_ICACHE))		__flush_icache_range(start, stop);} extern void flush_icache_user_range(struct vm_area_struct *vma,				    struct page *page, unsigned long addr,				    int len);extern void __flush_dcache_icache(void *page_va);extern void flush_dcache_icache_page(struct page *page);#if defined(CONFIG_PPC32) && !defined(CONFIG_BOOKE)extern void __flush_dcache_icache_phys(unsigned long physaddr);#endif /* CONFIG_PPC32 && !CONFIG_BOOKE */ extern void flush_dcache_range(unsigned long start, unsigned long stop);#ifdef CONFIG_PPC32extern void clean_dcache_range(unsigned long start, unsigned long stop);extern void invalidate_dcache_range(unsigned long start, unsigned long stop);#endif /* CONFIG_PPC32 */#ifdef CONFIG_PPC64extern void flush_inval_dcache_range(unsigned long start, unsigned long stop);extern void flush_dcache_phys_range(unsigned long start, unsigned long stop);#endif #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 /* __KERNEL__ */ #endif /* _ASM_POWERPC_CACHEFLUSH_H */