Commit | Line | Data |
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26ef5c09 DG |
1 | /* |
2 | * This program is free software; you can redistribute it and/or | |
3 | * modify it under the terms of the GNU General Public License | |
4 | * as published by the Free Software Foundation; either version | |
5 | * 2 of the License, or (at your option) any later version. | |
6 | */ | |
7 | #ifndef _ASM_POWERPC_CACHEFLUSH_H | |
8 | #define _ASM_POWERPC_CACHEFLUSH_H | |
9 | ||
10 | #ifdef __KERNEL__ | |
1da177e4 LT |
11 | |
12 | #include <linux/mm.h> | |
13 | #include <asm/cputable.h> | |
14 | ||
15 | /* | |
26ef5c09 DG |
16 | * No cache flushing is required when address mappings are changed, |
17 | * because the caches on PowerPCs are physically addressed. | |
1da177e4 LT |
18 | */ |
19 | #define flush_cache_all() do { } while (0) | |
20 | #define flush_cache_mm(mm) do { } while (0) | |
ec8c0446 | 21 | #define flush_cache_dup_mm(mm) do { } while (0) |
1da177e4 LT |
22 | #define flush_cache_range(vma, start, end) do { } while (0) |
23 | #define flush_cache_page(vma, vmaddr, pfn) do { } while (0) | |
24 | #define flush_icache_page(vma, page) do { } while (0) | |
25 | #define flush_cache_vmap(start, end) do { } while (0) | |
26 | #define flush_cache_vunmap(start, end) do { } while (0) | |
27 | ||
2d4dc890 | 28 | #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 |
1da177e4 LT |
29 | extern void flush_dcache_page(struct page *page); |
30 | #define flush_dcache_mmap_lock(mapping) do { } while (0) | |
31 | #define flush_dcache_mmap_unlock(mapping) do { } while (0) | |
32 | ||
d0832a75 ZC |
33 | extern void __flush_disable_L1(void); |
34 | ||
3b04c300 | 35 | extern void flush_icache_range(unsigned long, unsigned long); |
1da177e4 LT |
36 | extern void flush_icache_user_range(struct vm_area_struct *vma, |
37 | struct page *page, unsigned long addr, | |
38 | int len); | |
26ef5c09 DG |
39 | extern void __flush_dcache_icache(void *page_va); |
40 | extern void flush_dcache_icache_page(struct page *page); | |
41 | #if defined(CONFIG_PPC32) && !defined(CONFIG_BOOKE) | |
42 | extern void __flush_dcache_icache_phys(unsigned long physaddr); | |
2f7d2b74 SW |
43 | #else |
44 | static inline void __flush_dcache_icache_phys(unsigned long physaddr) | |
45 | { | |
46 | BUG(); | |
47 | } | |
48 | #endif | |
1da177e4 LT |
49 | |
50 | extern void flush_dcache_range(unsigned long start, unsigned long stop); | |
26ef5c09 DG |
51 | #ifdef CONFIG_PPC32 |
52 | extern void clean_dcache_range(unsigned long start, unsigned long stop); | |
53 | extern void invalidate_dcache_range(unsigned long start, unsigned long stop); | |
54 | #endif /* CONFIG_PPC32 */ | |
55 | #ifdef CONFIG_PPC64 | |
1da177e4 | 56 | extern void flush_inval_dcache_range(unsigned long start, unsigned long stop); |
26ef5c09 DG |
57 | extern void flush_dcache_phys_range(unsigned long start, unsigned long stop); |
58 | #endif | |
1da177e4 LT |
59 | |
60 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ | |
26ef5c09 DG |
61 | do { \ |
62 | memcpy(dst, src, len); \ | |
63 | flush_icache_user_range(vma, page, vaddr, len); \ | |
64 | } while (0) | |
1da177e4 LT |
65 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ |
66 | memcpy(dst, src, len) | |
67 | ||
26ef5c09 | 68 | #endif /* __KERNEL__ */ |
1da177e4 | 69 | |
26ef5c09 | 70 | #endif /* _ASM_POWERPC_CACHEFLUSH_H */ |