1 #ifndef _PARISC_CACHEFLUSH_H
2 #define _PARISC_CACHEFLUSH_H
6 /* The usual comment is "Caches aren't brain-dead on the <architecture>".
7 * Unfortunately, that doesn't apply to PA-RISC. */
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 */
13 void flush_data_cache(void); /* flushes data-cache only (all processors) */
14 void flush_instruction_cache(void); /* flushes i-cache only (all processors) */
16 #define flush_data_cache() flush_data_cache_local(NULL)
17 #define flush_instruction_cache() flush_instruction_cache_local(NULL)
20 #define flush_cache_dup_mm(mm) flush_cache_mm(mm)
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);
31 /* Cache flush operations */
33 void flush_cache_all_local(void);
34 void flush_cache_all(void);
35 void flush_cache_mm(struct mm_struct *mm);
37 #define flush_kernel_dcache_range(start,size) \
38 flush_kernel_dcache_range_asm((start), (start)+(size));
40 #define flush_cache_vmap(start, end) flush_cache_all()
41 #define flush_cache_vunmap(start, end) flush_cache_all()
43 extern void flush_dcache_page(struct page *page);
45 #define flush_dcache_mmap_lock(mapping) \
46 write_lock_irq(&(mapping)->tree_lock)
47 #define flush_dcache_mmap_unlock(mapping) \
48 write_unlock_irq(&(mapping)->tree_lock)
50 #define flush_icache_page(vma,page) do { \
51 flush_kernel_dcache_page(page); \
52 flush_kernel_icache_page(page_address(page)); \
55 #define flush_icache_range(s,e) do { \
56 flush_kernel_dcache_range_asm(s,e); \
57 flush_kernel_icache_range_asm(s,e); \
60 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
62 flush_cache_page(vma, vaddr, page_to_pfn(page)); \
63 memcpy(dst, src, len); \
64 flush_kernel_dcache_range_asm((unsigned long)dst, (unsigned long)dst + len); \
67 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
69 flush_cache_page(vma, vaddr, page_to_pfn(page)); \
70 memcpy(dst, src, len); \
73 void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);
74 void flush_cache_range(struct vm_area_struct *vma,
75 unsigned long start, unsigned long end);
77 #define ARCH_HAS_FLUSH_ANON_PAGE
79 flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr)
82 flush_user_dcache_page(vmaddr);
85 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
86 void flush_kernel_dcache_page_addr(void *addr);
87 static inline void flush_kernel_dcache_page(struct page *page)
89 flush_kernel_dcache_page_addr(page_address(page));
92 #ifdef CONFIG_DEBUG_RODATA
93 void mark_rodata_ro(void);
97 /* Only pa8800, pa8900 needs this */
100 void kunmap_parisc(void *addr);
102 static inline void *kmap(struct page *page)
105 return page_address(page);
108 #define kunmap(page) kunmap_parisc(page_address(page))
110 #define kmap_atomic(page, idx) page_address(page)
112 #define kunmap_atomic(addr, idx) kunmap_parisc(addr)
114 #define kmap_atomic_pfn(pfn, idx) page_address(pfn_to_page(pfn))
115 #define kmap_atomic_to_page(ptr) virt_to_page(ptr)
118 #endif /* _PARISC_CACHEFLUSH_H */