diff options
Diffstat (limited to 'arch/m68k/include/asm/cacheflush_no.h')
-rw-r--r-- | arch/m68k/include/asm/cacheflush_no.h | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/arch/m68k/include/asm/cacheflush_no.h b/arch/m68k/include/asm/cacheflush_no.h index f931e182983..cb88aa96c4f 100644 --- a/arch/m68k/include/asm/cacheflush_no.h +++ b/arch/m68k/include/asm/cacheflush_no.h | |||
@@ -12,14 +12,12 @@ | |||
12 | #define flush_cache_dup_mm(mm) do { } while (0) | 12 | #define flush_cache_dup_mm(mm) do { } while (0) |
13 | #define flush_cache_range(vma, start, end) do { } while (0) | 13 | #define flush_cache_range(vma, start, end) do { } while (0) |
14 | #define flush_cache_page(vma, vmaddr) do { } while (0) | 14 | #define flush_cache_page(vma, vmaddr) do { } while (0) |
15 | #ifndef flush_dcache_range | 15 | #define flush_dcache_range(start, len) __flush_dcache_all() |
16 | #define flush_dcache_range(start,len) __flush_cache_all() | ||
17 | #endif | ||
18 | #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 | 16 | #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 |
19 | #define flush_dcache_page(page) do { } while (0) | 17 | #define flush_dcache_page(page) do { } while (0) |
20 | #define flush_dcache_mmap_lock(mapping) do { } while (0) | 18 | #define flush_dcache_mmap_lock(mapping) do { } while (0) |
21 | #define flush_dcache_mmap_unlock(mapping) do { } while (0) | 19 | #define flush_dcache_mmap_unlock(mapping) do { } while (0) |
22 | #define flush_icache_range(start,len) __flush_cache_all() | 20 | #define flush_icache_range(start, len) __flush_icache_all() |
23 | #define flush_icache_page(vma,pg) do { } while (0) | 21 | #define flush_icache_page(vma,pg) do { } while (0) |
24 | #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) | 22 | #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) |
25 | #define flush_cache_vmap(start, end) do { } while (0) | 23 | #define flush_cache_vmap(start, end) do { } while (0) |
@@ -46,4 +44,36 @@ static inline void __flush_cache_all(void) | |||
46 | #endif | 44 | #endif |
47 | } | 45 | } |
48 | 46 | ||
47 | /* | ||
48 | * Some ColdFire parts implement separate instruction and data caches, | ||
49 | * on those we should just flush the appropriate cache. If we don't need | ||
50 | * to do any specific flushing then this will be optimized away. | ||
51 | */ | ||
52 | static inline void __flush_icache_all(void) | ||
53 | { | ||
54 | #ifdef CACHE_INVALIDATEI | ||
55 | __asm__ __volatile__ ( | ||
56 | "movel %0, %%d0\n\t" | ||
57 | "movec %%d0, %%CACR\n\t" | ||
58 | "nop\n\t" | ||
59 | : : "i" (CACHE_INVALIDATEI) : "d0" ); | ||
60 | #endif | ||
61 | } | ||
62 | |||
63 | static inline void __flush_dcache_all(void) | ||
64 | { | ||
65 | #ifdef CACHE_PUSH | ||
66 | mcf_cache_push(); | ||
67 | #endif | ||
68 | #ifdef CACHE_INVALIDATED | ||
69 | __asm__ __volatile__ ( | ||
70 | "movel %0, %%d0\n\t" | ||
71 | "movec %%d0, %%CACR\n\t" | ||
72 | "nop\n\t" | ||
73 | : : "i" (CACHE_INVALIDATED) : "d0" ); | ||
74 | #else | ||
75 | /* Flush the wrtite buffer */ | ||
76 | __asm__ __volatile__ ( "nop" ); | ||
77 | #endif | ||
78 | } | ||
49 | #endif /* _M68KNOMMU_CACHEFLUSH_H */ | 79 | #endif /* _M68KNOMMU_CACHEFLUSH_H */ |