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1 | #ifndef _M68KNOMMU_CACHEFLUSH_H |
2 | #define _M68KNOMMU_CACHEFLUSH_H | |
3 | ||
4 | /* | |
962d69ed | 5 | * (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com> |
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6 | */ |
7 | #include <linux/mm.h> | |
8 | ||
9 | #define flush_cache_all() __flush_cache_all() | |
10 | #define flush_cache_mm(mm) do { } while (0) | |
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11 | #define flush_cache_range(vma, start, end) __flush_cache_all() |
12 | #define flush_cache_page(vma, vmaddr) do { } while (0) | |
13 | #define flush_dcache_range(start,len) __flush_cache_all() | |
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14 | #define flush_dcache_page(page) do { } while (0) |
15 | #define flush_dcache_mmap_lock(mapping) do { } while (0) | |
16 | #define flush_dcache_mmap_unlock(mapping) do { } while (0) | |
17 | #define flush_icache_range(start,len) __flush_cache_all() | |
18 | #define flush_icache_page(vma,pg) do { } while (0) | |
19 | #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) | |
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20 | #define flush_cache_vmap(start, end) do { } while (0) |
21 | #define flush_cache_vunmap(start, end) do { } while (0) | |
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22 | |
23 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ | |
24 | memcpy(dst, src, len) | |
25 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ | |
26 | memcpy(dst, src, len) | |
27 | ||
28 | extern inline void __flush_cache_all(void) | |
29 | { | |
30 | #ifdef CONFIG_M5407 | |
31 | /* | |
32 | * Use cpushl to push and invalidate all cache lines. | |
33 | * Gas doesn't seem to know how to generate the ColdFire | |
34 | * cpushl instruction... Oh well, bit stuff it for now. | |
35 | */ | |
36 | __asm__ __volatile__ ( | |
37 | "nop\n\t" | |
38 | "clrl %%d0\n\t" | |
39 | "1:\n\t" | |
40 | "movel %%d0,%%a0\n\t" | |
41 | "2:\n\t" | |
42 | ".word 0xf468\n\t" | |
43 | "addl #0x10,%%a0\n\t" | |
44 | "cmpl #0x00000800,%%a0\n\t" | |
45 | "blt 2b\n\t" | |
46 | "addql #1,%%d0\n\t" | |
47 | "cmpil #4,%%d0\n\t" | |
48 | "bne 1b\n\t" | |
49 | "movel #0xb6088500,%%d0\n\t" | |
50 | "movec %%d0,%%CACR\n\t" | |
51 | : : : "d0", "a0" ); | |
52 | #endif /* CONFIG_M5407 */ | |
962d69ed | 53 | #if defined(CONFIG_M527x) || defined(CONFIG_M528x) |
1da177e4 | 54 | __asm__ __volatile__ ( |
962d69ed | 55 | "movel #0x81400100, %%d0\n\t" |
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56 | "movec %%d0, %%CACR\n\t" |
57 | "nop\n\t" | |
58 | : : : "d0" ); | |
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59 | #endif /* CONFIG_M527x || CONFIG_M528x */ |
60 | #ifdef CONFIG_M5272 | |
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61 | __asm__ __volatile__ ( |
62 | "movel #0x01000000, %%d0\n\t" | |
63 | "movec %%d0, %%CACR\n\t" | |
64 | "nop\n\t" | |
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65 | : : : "d0" ); |
66 | #endif /* CONFIG_M5272 */ | |
67 | #if CONFIG_M5249 | |
68 | __asm__ __volatile__ ( | |
69 | "movel #0xa1000200, %%d0\n\t" | |
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70 | "movec %%d0, %%CACR\n\t" |
71 | "nop\n\t" | |
72 | : : : "d0" ); | |
73 | #endif /* CONFIG_M5249 */ | |
74 | } | |
75 | ||
76 | #endif /* _M68KNOMMU_CACHEFLUSH_H */ |