1 #ifndef _PARISC_CACHEFLUSH_H 2 #define _PARISC_CACHEFLUSH_H 3 4 #include <linux/mm.h> 5 6 /* The usual comment is "Caches aren't brain-dead on the <architecture>". 7 * Unfortunately, that doesn't apply to PA-RISC. */ 8 9 /* Internal implementation */ 10 void flush_data_cache_local(void *); /* flushes local data-cache only */ 11 void flush_instruction_cache_local(void *); /* flushes local code-cache only */ 12 #ifdef CONFIG_SMP 13 void flush_data_cache(void); /* flushes data-cache only (all processors) */ 14 void flush_instruction_cache(void); /* flushes i-cache only (all processors) */ 15 #else 16 #define flush_data_cache() flush_data_cache_local(NULL) 17 #define flush_instruction_cache() flush_instruction_cache_local(NULL) 18 #endif 19 20 #define flush_cache_dup_mm(mm) flush_cache_mm(mm) 21 22 void flush_user_icache_range_asm(unsigned long, unsigned long); 23 void flush_kernel_icache_range_asm(unsigned long, unsigned long); 24 void flush_user_dcache_range_asm(unsigned long, unsigned long); 25 void flush_kernel_dcache_range_asm(unsigned long, unsigned long); 26 void flush_kernel_dcache_page_asm(void *); 27 void flush_kernel_icache_page(void *); 28 void flush_user_dcache_page(unsigned long); 29 void flush_user_icache_page(unsigned long); 30 void flush_user_dcache_range(unsigned long, unsigned long); 31 void flush_user_icache_range(unsigned long, unsigned long); 32 33 /* Cache flush operations */ 34 35 void flush_cache_all_local(void); 36 void flush_cache_all(void); 37 void flush_cache_mm(struct mm_struct *mm); 38 39 #define flush_kernel_dcache_range(start,size) \ 40 flush_kernel_dcache_range_asm((start), (start)+(size)); 41 42 #define flush_cache_vmap(start, end) flush_cache_all() 43 #define flush_cache_vunmap(start, end) flush_cache_all() 44 45 extern void flush_dcache_page(struct page *page); 46 47 #define flush_dcache_mmap_lock(mapping) \ 48 spin_lock_irq(&(mapping)->tree_lock) 49 #define flush_dcache_mmap_unlock(mapping) \ 50 spin_unlock_irq(&(mapping)->tree_lock) 51 52 #define flush_icache_page(vma,page) do { \ 53 flush_kernel_dcache_page(page); \ 54 flush_kernel_icache_page(page_address(page)); \ 55 } while (0) 56 57 #define flush_icache_range(s,e) do { \ 58 flush_kernel_dcache_range_asm(s,e); \ 59 flush_kernel_icache_range_asm(s,e); \ 60 } while (0) 61 62 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ 63 do { \ 64 flush_cache_page(vma, vaddr, page_to_pfn(page)); \ 65 memcpy(dst, src, len); \ 66 flush_kernel_dcache_range_asm((unsigned long)dst, (unsigned long)dst + len); \ 67 } while (0) 68 69 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ 70 do { \ 71 flush_cache_page(vma, vaddr, page_to_pfn(page)); \ 72 memcpy(dst, src, len); \ 73 } while (0) 74 75 void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn); 76 void flush_cache_range(struct vm_area_struct *vma, 77 unsigned long start, unsigned long end); 78 79 #define ARCH_HAS_FLUSH_ANON_PAGE 80 static inline void 81 flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr) 82 { 83 if (PageAnon(page)) 84 flush_user_dcache_page(vmaddr); 85 } 86 87 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE 88 void flush_kernel_dcache_page_addr(void *addr); 89 static inline void flush_kernel_dcache_page(struct page *page) 90 { 91 flush_kernel_dcache_page_addr(page_address(page)); 92 } 93 94 #ifdef CONFIG_DEBUG_RODATA 95 void mark_rodata_ro(void); 96 #endif 97 98 #ifdef CONFIG_PA8X00 99 /* Only pa8800, pa8900 needs this */ 100 101 #include <asm/kmap_types.h> 102 103 #define ARCH_HAS_KMAP 104 105 void kunmap_parisc(void *addr); 106 107 static inline void *kmap(struct page *page) 108 { 109 might_sleep(); 110 return page_address(page); 111 } 112 113 #define kunmap(page) kunmap_parisc(page_address(page)) 114 115 #define kmap_atomic(page, idx) page_address(page) 116 117 #define kunmap_atomic(addr, idx) kunmap_parisc(addr) 118 119 #define kmap_atomic_pfn(pfn, idx) page_address(pfn_to_page(pfn)) 120 #define kmap_atomic_to_page(ptr) virt_to_page(ptr) 121 #endif 122 123 #endif /* _PARISC_CACHEFLUSH_H */ 124 125