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f5e706ad SR |
1 | #ifndef _SPARC64_CACHEFLUSH_H |
2 | #define _SPARC64_CACHEFLUSH_H | |
3 | ||
4 | #include <asm/page.h> | |
5 | ||
6 | #ifndef __ASSEMBLY__ | |
7 | ||
8 | #include <linux/mm.h> | |
9 | ||
10 | /* Cache flush operations. */ | |
11 | ||
12 | /* These are the same regardless of whether this is an SMP kernel or not. */ | |
13 | #define flush_cache_mm(__mm) \ | |
14 | do { if ((__mm) == current->mm) flushw_user(); } while(0) | |
15 | #define flush_cache_dup_mm(mm) flush_cache_mm(mm) | |
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); | |
2d4dc890 | 40 | #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 |
f5e706ad SR |
41 | extern void flush_dcache_page(struct page *page); |
42 | ||
43 | #define flush_icache_page(vma, pg) do { } while(0) | |
44 | #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) | |
45 | ||
46 | extern void flush_ptrace_access(struct vm_area_struct *, struct page *, | |
47 | unsigned long uaddr, void *kaddr, | |
48 | unsigned long len, int write); | |
49 | ||
50 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ | |
51 | do { \ | |
52 | flush_cache_page(vma, vaddr, page_to_pfn(page)); \ | |
53 | memcpy(dst, src, len); \ | |
54 | flush_ptrace_access(vma, page, vaddr, src, len, 0); \ | |
55 | } while (0) | |
56 | ||
57 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ | |
58 | do { \ | |
59 | flush_cache_page(vma, vaddr, page_to_pfn(page)); \ | |
60 | memcpy(dst, src, len); \ | |
61 | flush_ptrace_access(vma, page, vaddr, dst, len, 1); \ | |
62 | } while (0) | |
63 | ||
64 | #define flush_dcache_mmap_lock(mapping) do { } while (0) | |
65 | #define flush_dcache_mmap_unlock(mapping) do { } while (0) | |
66 | ||
67 | #define flush_cache_vmap(start, end) do { } while (0) | |
68 | #define flush_cache_vunmap(start, end) do { } while (0) | |
69 | ||
70 | #ifdef CONFIG_DEBUG_PAGEALLOC | |
71 | /* internal debugging function */ | |
72 | void kernel_map_pages(struct page *page, int numpages, int enable); | |
73 | #endif | |
74 | ||
75 | #endif /* !__ASSEMBLY__ */ | |
76 | ||
77 | #endif /* _SPARC64_CACHEFLUSH_H */ |