1 #ifndef _PARISC_CACHEFLUSH_H
2 #define _PARISC_CACHEFLUSH_H
5 #include <linux/uaccess.h>
6 #include <asm/tlbflush.h>
8 /* The usual comment is "Caches aren't brain-dead on the <architecture>".
9 * Unfortunately, that doesn't apply to PA-RISC. */
11 /* Internal implementation */
12 void flush_data_cache_local(void *); /* flushes local data-cache only */
13 void flush_instruction_cache_local(void *); /* flushes local code-cache only */
15 void flush_data_cache(void); /* flushes data-cache only (all processors) */
16 void flush_instruction_cache(void); /* flushes i-cache only (all processors) */
18 #define flush_data_cache() flush_data_cache_local(NULL)
19 #define flush_instruction_cache() flush_instruction_cache_local(NULL)
22 #define flush_cache_dup_mm(mm) flush_cache_mm(mm)
24 void flush_user_icache_range_asm(unsigned long, unsigned long);
25 void flush_kernel_icache_range_asm(unsigned long, unsigned long);
26 void flush_user_dcache_range_asm(unsigned long, unsigned long);
27 void flush_kernel_dcache_range_asm(unsigned long, unsigned long);
28 void purge_kernel_dcache_range_asm(unsigned long, unsigned long);
29 void flush_kernel_dcache_page_asm(void *);
30 void flush_kernel_icache_page(void *);
31 void flush_user_dcache_range(unsigned long, unsigned long);
32 void flush_user_icache_range(unsigned long, unsigned long);
34 /* Cache flush operations */
36 void flush_cache_all_local(void);
37 void flush_cache_all(void);
38 void flush_cache_mm(struct mm_struct *mm);
40 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
41 void flush_kernel_dcache_page_addr(void *addr);
42 static inline void flush_kernel_dcache_page(struct page *page)
44 flush_kernel_dcache_page_addr(page_address(page));
47 #define flush_kernel_dcache_range(start,size) \
48 flush_kernel_dcache_range_asm((start), (start)+(size));
50 void flush_kernel_vmap_range(void *vaddr, int size);
51 void invalidate_kernel_vmap_range(void *vaddr, int size);
53 #define flush_cache_vmap(start, end) flush_cache_all()
54 #define flush_cache_vunmap(start, end) flush_cache_all()
56 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
57 extern void flush_dcache_page(struct page *page);
59 #define flush_dcache_mmap_lock(mapping) \
60 spin_lock_irq(&(mapping)->tree_lock)
61 #define flush_dcache_mmap_unlock(mapping) \
62 spin_unlock_irq(&(mapping)->tree_lock)
64 #define flush_icache_page(vma,page) do { \
65 flush_kernel_dcache_page(page); \
66 flush_kernel_icache_page(page_address(page)); \
69 #define flush_icache_range(s,e) do { \
70 flush_kernel_dcache_range_asm(s,e); \
71 flush_kernel_icache_range_asm(s,e); \
74 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
76 flush_cache_page(vma, vaddr, page_to_pfn(page)); \
77 memcpy(dst, src, len); \
78 flush_kernel_dcache_range_asm((unsigned long)dst, (unsigned long)dst + len); \
81 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
83 flush_cache_page(vma, vaddr, page_to_pfn(page)); \
84 memcpy(dst, src, len); \
87 void flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn);
88 void flush_cache_range(struct vm_area_struct *vma,
89 unsigned long start, unsigned long end);
91 /* defined in pacache.S exported in cache.c used by flush_anon_page */
92 void flush_dcache_page_asm(unsigned long phys_addr, unsigned long vaddr);
94 #define ARCH_HAS_FLUSH_ANON_PAGE
96 flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vmaddr)
99 flush_tlb_page(vma, vmaddr);
101 flush_dcache_page_asm(page_to_phys(page), vmaddr);
106 #include <asm/kmap_types.h>
108 #define ARCH_HAS_KMAP
110 static inline void *kmap(struct page *page)
113 return page_address(page);
116 static inline void kunmap(struct page *page)
118 flush_kernel_dcache_page_addr(page_address(page));
121 static inline void *kmap_atomic(struct page *page)
125 return page_address(page);
128 static inline void __kunmap_atomic(void *addr)
130 flush_kernel_dcache_page_addr(addr);
135 #define kmap_atomic_prot(page, prot) kmap_atomic(page)
136 #define kmap_atomic_pfn(pfn) kmap_atomic(pfn_to_page(pfn))
138 #endif /* _PARISC_CACHEFLUSH_H */