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1da177e4 LT |
1 | #ifndef _SPARC64_CACHEFLUSH_H |
2 | #define _SPARC64_CACHEFLUSH_H | |
3 | ||
4 | #include <linux/config.h> | |
5 | #include <asm/page.h> | |
6 | ||
1da177e4 LT |
7 | #ifndef __ASSEMBLY__ |
8 | ||
9 | #include <linux/mm.h> | |
10 | ||
11 | /* Cache flush operations. */ | |
12 | ||
13 | /* These are the same regardless of whether this is an SMP kernel or not. */ | |
14 | #define flush_cache_mm(__mm) \ | |
15 | do { if ((__mm) == current->mm) flushw_user(); } while(0) | |
16 | #define flush_cache_range(vma, start, end) \ | |
17 | flush_cache_mm((vma)->vm_mm) | |
18 | #define flush_cache_page(vma, page, pfn) \ | |
19 | flush_cache_mm((vma)->vm_mm) | |
20 | ||
21 | /* | |
22 | * On spitfire, the icache doesn't snoop local stores and we don't | |
23 | * use block commit stores (which invalidate icache lines) during | |
24 | * module load, so we need this. | |
25 | */ | |
26 | extern void flush_icache_range(unsigned long start, unsigned long end); | |
27 | extern void __flush_icache_page(unsigned long); | |
28 | ||
29 | extern void __flush_dcache_page(void *addr, int flush_icache); | |
30 | extern void flush_dcache_page_impl(struct page *page); | |
31 | #ifdef CONFIG_SMP | |
32 | extern void smp_flush_dcache_page_impl(struct page *page, int cpu); | |
33 | extern void flush_dcache_page_all(struct mm_struct *mm, struct page *page); | |
34 | #else | |
35 | #define smp_flush_dcache_page_impl(page,cpu) flush_dcache_page_impl(page) | |
36 | #define flush_dcache_page_all(mm,page) flush_dcache_page_impl(page) | |
37 | #endif | |
38 | ||
39 | extern void __flush_dcache_range(unsigned long start, unsigned long end); | |
40 | extern void flush_dcache_page(struct page *page); | |
41 | ||
42 | #define flush_icache_page(vma, pg) do { } while(0) | |
43 | #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) | |
44 | ||
dadeafdf DM |
45 | extern void flush_ptrace_access(struct vm_area_struct *, struct page *, |
46 | unsigned long uaddr, void *kaddr, | |
47 | unsigned long len, int write); | |
48 | ||
49 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ | |
50 | do { \ | |
51 | flush_cache_page(vma, vaddr, page_to_pfn(page)); \ | |
52 | memcpy(dst, src, len); \ | |
53 | flush_ptrace_access(vma, page, vaddr, src, len, 0); \ | |
1da177e4 LT |
54 | } while (0) |
55 | ||
dadeafdf DM |
56 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ |
57 | do { \ | |
58 | flush_cache_page(vma, vaddr, page_to_pfn(page)); \ | |
59 | memcpy(dst, src, len); \ | |
60 | flush_ptrace_access(vma, page, vaddr, dst, len, 1); \ | |
1da177e4 LT |
61 | } while (0) |
62 | ||
63 | #define flush_dcache_mmap_lock(mapping) do { } while (0) | |
64 | #define flush_dcache_mmap_unlock(mapping) do { } while (0) | |
65 | ||
66 | #define flush_cache_vmap(start, end) do { } while (0) | |
67 | #define flush_cache_vunmap(start, end) do { } while (0) | |
68 | ||
56425306 DM |
69 | #ifdef CONFIG_DEBUG_PAGEALLOC |
70 | /* internal debugging function */ | |
71 | void kernel_map_pages(struct page *page, int numpages, int enable); | |
72 | #endif | |
73 | ||
1da177e4 LT |
74 | #endif /* !__ASSEMBLY__ */ |
75 | ||
76 | #endif /* _SPARC64_CACHEFLUSH_H */ |