diff options
Diffstat (limited to 'arch/sh/mm/cache-debugfs.c')
-rw-r--r-- | arch/sh/mm/cache-debugfs.c | 25 |
1 files changed, 5 insertions, 20 deletions
diff --git a/arch/sh/mm/cache-debugfs.c b/arch/sh/mm/cache-debugfs.c index 52411462c409..115725198038 100644 --- a/arch/sh/mm/cache-debugfs.c +++ b/arch/sh/mm/cache-debugfs.c | |||
@@ -26,9 +26,9 @@ static int cache_seq_show(struct seq_file *file, void *iter) | |||
26 | { | 26 | { |
27 | unsigned int cache_type = (unsigned int)file->private; | 27 | unsigned int cache_type = (unsigned int)file->private; |
28 | struct cache_info *cache; | 28 | struct cache_info *cache; |
29 | unsigned int waysize, way, cache_size; | 29 | unsigned int waysize, way; |
30 | unsigned long ccr, base; | 30 | unsigned long ccr; |
31 | static unsigned long addrstart = 0; | 31 | unsigned long addrstart = 0; |
32 | 32 | ||
33 | /* | 33 | /* |
34 | * Go uncached immediately so we don't skew the results any | 34 | * Go uncached immediately so we don't skew the results any |
@@ -45,28 +45,13 @@ static int cache_seq_show(struct seq_file *file, void *iter) | |||
45 | } | 45 | } |
46 | 46 | ||
47 | if (cache_type == CACHE_TYPE_DCACHE) { | 47 | if (cache_type == CACHE_TYPE_DCACHE) { |
48 | base = CACHE_OC_ADDRESS_ARRAY; | 48 | addrstart = CACHE_OC_ADDRESS_ARRAY; |
49 | cache = ¤t_cpu_data.dcache; | 49 | cache = ¤t_cpu_data.dcache; |
50 | } else { | 50 | } else { |
51 | base = CACHE_IC_ADDRESS_ARRAY; | 51 | addrstart = CACHE_IC_ADDRESS_ARRAY; |
52 | cache = ¤t_cpu_data.icache; | 52 | cache = ¤t_cpu_data.icache; |
53 | } | 53 | } |
54 | 54 | ||
55 | /* | ||
56 | * Due to the amount of data written out (depending on the cache size), | ||
57 | * we may be iterated over multiple times. In this case, keep track of | ||
58 | * the entry position in addrstart, and rewind it when we've hit the | ||
59 | * end of the cache. | ||
60 | * | ||
61 | * Likewise, the same code is used for multiple caches, so care must | ||
62 | * be taken for bouncing addrstart back and forth so the appropriate | ||
63 | * cache is hit. | ||
64 | */ | ||
65 | cache_size = cache->ways * cache->sets * cache->linesz; | ||
66 | if (((addrstart & 0xff000000) != base) || | ||
67 | (addrstart & 0x00ffffff) > cache_size) | ||
68 | addrstart = base; | ||
69 | |||
70 | waysize = cache->sets; | 55 | waysize = cache->sets; |
71 | 56 | ||
72 | /* | 57 | /* |