#ifndef _PARISC_CACHEFLUSH_H#define _PARISC_CACHEFLUSH_H #include <linux/mm.h>#include <linux/uaccess.h>#include <asm/tlbflush.h> /* The usual comment is "Caches aren't brain-dead on the <architecture>". * Unfortunately, that doesn't apply to PA-RISC. */ /* Internal implementation */void flush_data_cache_local(void *);  /* flushes local data-cache only */void flush_instruction_cache_local(void *); /* flushes local code-cache only */#ifdef CONFIG_SMPvoid flush_data_cache(void); /* flushes data-cache only (all processors) */void flush_instruction_cache(void); /* flushes i-cache only (all processors) */#else#define flush_data_cache() flush_data_cache_local(NULL)#define flush_instruction_cache() flush_instruction_cache_local(NULL)#endif #define flush_cache_dup_mm(mm) flush_cache_mm(mm) void flush_user_icache_range_asm(unsigned long, unsigned long);void flush_kernel_icache_range_asm(unsigned long, unsigned long);void flush_user_dcache_range_asm(unsigned long, unsigned long);void flush_kernel_dcache_range_asm(unsigned long, unsigned long);void flush_kernel_dcache_page_asm(void *);void flush_kernel_icache_page(void *);void flush_user_dcache_range(unsigned long, unsigned long);void flush_user_icache_range(unsigned long, unsigned long); /* Cache flush operations */ void flush_cache_all_local(void);void flush_cache_all(void);void flush_cache_mm(struct mm_struct *mm); #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGEvoid flush_kernel_dcache_page_addr(void *addr);static inline void flush_kernel_dcache_page(struct page *page){	flush_kernel_dcache_page_addr(page_address(page));} #define flush_kernel_dcache_range(start,size) \	flush_kernel_dcache_range_asm((start), (start)+(size));/* vmap range flushes and invalidates.  Architecturally, we don't need * the invalidate, because the CPU should refuse to speculate once an * area has been flushed, so invalidate is left empty */static inline void flush_kernel_vmap_range(void *vaddr, int size){	unsigned long start = (unsigned long)vaddr; 	flush_kernel_dcache_range_asm(start, start + size);}static inline void invalidate_kernel_vmap_range(void *vaddr, int size){	unsigned long start = (unsigned long)vaddr;	void *cursor = vaddr; 	for ( ; cursor < vaddr + size; cursor += PAGE_SIZE) {		struct page *page = vmalloc_to_page(cursor); 		if (test_and_clear_bit(PG_dcache_dirty, &page->flags))			flush_kernel_dcache_page(page);	}	flush_kernel_dcache_range_asm(start, start + size);} #define flush_cache_vmap(start, end)		flush_cache_all()#define flush_cache_vunmap(start, end)		flush_cache_all() #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1extern void flush_dcache_page(struct page *page); #define flush_dcache_mmap_lock(mapping) \	spin_lock_irq(&(mapping)->tree_lock)#define flush_dcache_mmap_unlock(mapping) \	spin_unlock_irq(&(mapping)->tree_lock) #define flush_icache_page(vma,page)	do { 		\	flush_kernel_dcache_page(page);			\	flush_kernel_icache_page(page_address(page)); 	\} while (0) #define flush_icache_range(s,e)		do { 		\	flush_kernel_dcache_range_asm(s,e); 		\	flush_kernel_icache_range_asm(s,e); 		\} while (0) #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_kernel_dcache_range_asm((unsigned long)dst, (unsigned long)dst + 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) void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);void flush_cache_range(struct vm_area_struct *vma,		unsigned long start, unsigned long end); /* defined in pacache.S exported in cache.c used by flush_anon_page */void flush_dcache_page_asm(unsigned long phys_addr, unsigned long vaddr); #define ARCH_HAS_FLUSH_ANON_PAGEstatic inline voidflush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr){	if (PageAnon(page)) {		flush_tlb_page(vma, vmaddr);		flush_dcache_page_asm(page_to_phys(page), vmaddr);	}} #ifdef CONFIG_DEBUG_RODATAvoid mark_rodata_ro(void);#endif #ifdef CONFIG_PA8X00/* Only pa8800, pa8900 needs this */ #include <asm/kmap_types.h> #define ARCH_HAS_KMAP void kunmap_parisc(void *addr); static inline void *kmap(struct page *page){	might_sleep();	return page_address(page);} #define kunmap(page)			kunmap_parisc(page_address(page)) static inline void *kmap_atomic(struct page *page){	pagefault_disable();	return page_address(page);} static inline void __kunmap_atomic(void *addr){	kunmap_parisc(addr);	pagefault_enable();} #define kmap_atomic_prot(page, prot)	kmap_atomic(page)#define kmap_atomic_pfn(pfn)	kmap_atomic(pfn_to_page(pfn))#define kmap_atomic_to_page(ptr)	virt_to_page(ptr)#endif #endif /* _PARISC_CACHEFLUSH_H */