#ifndef _PARISC_CACHEFLUSH_H #define _PARISC_CACHEFLUSH_H #include <linux/mm.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_SMP void 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_page(unsigned long); void flush_user_icache_page(unsigned long); 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 flush_kernel_dcache_range(start,size) \ 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() extern 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); #define ARCH_HAS_FLUSH_ANON_PAGE static inline void flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr) { if (PageAnon(page)) flush_user_dcache_page(vmaddr); } #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE void 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)); } #ifdef CONFIG_DEBUG_RODATA void mark_rodata_ro(void); #endif #ifdef CONFIG_PA8X00 /* Only pa8800, pa8900 needs this */ #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)) #define kmap_atomic(page, idx) page_address(page) #define kunmap_atomic(addr, idx) kunmap_parisc(addr) #define kmap_atomic_pfn(pfn, idx) page_address(pfn_to_page(pfn)) #define kmap_atomic_to_page(ptr) virt_to_page(ptr) #endif #endif /* _PARISC_CACHEFLUSH_H */