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);
30 void flush_user_dcache_range(unsigned long, unsigned long);
31 void flush_user_icache_range(unsigned long, unsigned long);
33 /* Cache flush operations */
35 void flush_cache_all_local(void);
36 void flush_cache_all(void);
37 void flush_cache_mm(struct mm_struct
*mm
);
39 #define flush_kernel_dcache_range(start,size) \
40 flush_kernel_dcache_range_asm((start), (start)+(size));
42 #define flush_cache_vmap(start, end) flush_cache_all()
43 #define flush_cache_vunmap(start, end) flush_cache_all()
45 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
46 extern void flush_dcache_page(struct page
*page
);
48 #define flush_dcache_mmap_lock(mapping) \
49 spin_lock_irq(&(mapping)->tree_lock)
50 #define flush_dcache_mmap_unlock(mapping) \
51 spin_unlock_irq(&(mapping)->tree_lock)
53 #define flush_icache_page(vma,page) do { \
54 flush_kernel_dcache_page(page); \
55 flush_kernel_icache_page(page_address(page)); \
58 #define flush_icache_range(s,e) do { \
59 flush_kernel_dcache_range_asm(s,e); \
60 flush_kernel_icache_range_asm(s,e); \
63 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
65 flush_cache_page(vma, vaddr, page_to_pfn(page)); \
66 memcpy(dst, src, len); \
67 flush_kernel_dcache_range_asm((unsigned long)dst, (unsigned long)dst + len); \
70 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
72 flush_cache_page(vma, vaddr, page_to_pfn(page)); \
73 memcpy(dst, src, len); \
76 void flush_cache_page(struct vm_area_struct
*vma
, unsigned long vmaddr
, unsigned long pfn
);
77 void flush_cache_range(struct vm_area_struct
*vma
,
78 unsigned long start
, unsigned long end
);
80 #define ARCH_HAS_FLUSH_ANON_PAGE
82 flush_anon_page(struct vm_area_struct
*vma
, struct page
*page
, unsigned long vmaddr
)
85 flush_user_dcache_page(vmaddr
);
88 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
89 void flush_kernel_dcache_page_addr(void *addr
);
90 static inline void flush_kernel_dcache_page(struct page
*page
)
92 flush_kernel_dcache_page_addr(page_address(page
));
95 #ifdef CONFIG_DEBUG_RODATA
96 void mark_rodata_ro(void);
100 /* Only pa8800, pa8900 needs this */
102 #include <asm/kmap_types.h>
104 #define ARCH_HAS_KMAP
106 void kunmap_parisc(void *addr
);
108 static inline void *kmap(struct page
*page
)
111 return page_address(page
);
114 #define kunmap(page) kunmap_parisc(page_address(page))
116 #define kmap_atomic(page, idx) page_address(page)
118 #define kunmap_atomic(addr, idx) kunmap_parisc(addr)
120 #define kmap_atomic_pfn(pfn, idx) page_address(pfn_to_page(pfn))
121 #define kmap_atomic_to_page(ptr) virt_to_page(ptr)
124 #endif /* _PARISC_CACHEFLUSH_H */