1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_SH_CACHEFLUSH_H
3 #define __ASM_SH_CACHEFLUSH_H
10 * - flush_cache_all() flushes entire cache
11 * - flush_cache_mm(mm) flushes the specified mm context's cache lines
12 * - flush_cache_dup mm(mm) handles cache flushing when forking
13 * - flush_cache_page(mm, vmaddr, pfn) flushes a single page
14 * - flush_cache_range(vma, start, end) flushes a range of pages
16 * - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache
17 * - flush_icache_range(start, end) flushes(invalidates) a range for icache
18 * - flush_icache_page(vma, pg) flushes(invalidates) a page for icache
19 * - flush_cache_sigtramp(vaddr) flushes the signal trampoline
21 extern void (*local_flush_cache_all
)(void *args
);
22 extern void (*local_flush_cache_mm
)(void *args
);
23 extern void (*local_flush_cache_dup_mm
)(void *args
);
24 extern void (*local_flush_cache_page
)(void *args
);
25 extern void (*local_flush_cache_range
)(void *args
);
26 extern void (*local_flush_dcache_page
)(void *args
);
27 extern void (*local_flush_icache_range
)(void *args
);
28 extern void (*local_flush_icache_page
)(void *args
);
29 extern void (*local_flush_cache_sigtramp
)(void *args
);
31 static inline void cache_noop(void *args
) { }
33 extern void (*__flush_wback_region
)(void *start
, int size
);
34 extern void (*__flush_purge_region
)(void *start
, int size
);
35 extern void (*__flush_invalidate_region
)(void *start
, int size
);
37 extern void flush_cache_all(void);
38 extern void flush_cache_mm(struct mm_struct
*mm
);
39 extern void flush_cache_dup_mm(struct mm_struct
*mm
);
40 extern void flush_cache_page(struct vm_area_struct
*vma
,
41 unsigned long addr
, unsigned long pfn
);
42 extern void flush_cache_range(struct vm_area_struct
*vma
,
43 unsigned long start
, unsigned long end
);
44 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
45 extern void flush_dcache_page(struct page
*page
);
46 extern void flush_icache_range(unsigned long start
, unsigned long end
);
47 #define flush_icache_user_range flush_icache_range
48 extern void flush_icache_page(struct vm_area_struct
*vma
,
50 extern void flush_cache_sigtramp(unsigned long address
);
53 struct vm_area_struct
*vma
;
54 unsigned long addr1
, addr2
;
57 #define ARCH_HAS_FLUSH_ANON_PAGE
58 extern void __flush_anon_page(struct page
*page
, unsigned long);
60 static inline void flush_anon_page(struct vm_area_struct
*vma
,
61 struct page
*page
, unsigned long vmaddr
)
63 if (boot_cpu_data
.dcache
.n_aliases
&& PageAnon(page
))
64 __flush_anon_page(page
, vmaddr
);
67 #define ARCH_IMPLEMENTS_FLUSH_KERNEL_VMAP_RANGE 1
68 static inline void flush_kernel_vmap_range(void *addr
, int size
)
70 __flush_wback_region(addr
, size
);
72 static inline void invalidate_kernel_vmap_range(void *addr
, int size
)
74 __flush_invalidate_region(addr
, size
);
77 extern void copy_to_user_page(struct vm_area_struct
*vma
,
78 struct page
*page
, unsigned long vaddr
, void *dst
, const void *src
,
81 extern void copy_from_user_page(struct vm_area_struct
*vma
,
82 struct page
*page
, unsigned long vaddr
, void *dst
, const void *src
,
85 #define flush_cache_vmap(start, end) local_flush_cache_all(NULL)
86 #define flush_cache_vunmap(start, end) local_flush_cache_all(NULL)
88 #define flush_dcache_mmap_lock(mapping) do { } while (0)
89 #define flush_dcache_mmap_unlock(mapping) do { } while (0)
91 void kmap_coherent_init(void);
92 void *kmap_coherent(struct page
*page
, unsigned long addr
);
93 void kunmap_coherent(void *kvaddr
);
95 #define PG_dcache_clean PG_arch_1
97 void cpu_cache_init(void);
99 static inline void *sh_cacheop_vaddr(void *vaddr
)
101 if (__in_29bit_mode())
102 vaddr
= (void *)CAC_ADDR((unsigned long)vaddr
);
106 #endif /* __ASM_SH_CACHEFLUSH_H */