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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-10-18 00:37:00 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-11-08 11:32:05 +0000 |
| commit | 82732bdd663ee9dc1ad4b0409881fe89a9d827ca (patch) | |
| tree | 11e85062bdac8075c296a45350f0bde3dbb70130 /drivers/base/regmap | |
| parent | 1ea6b8f48918282bdca0b32a34095504ee65bab5 (diff) | |
| download | linux-3.10-82732bdd663ee9dc1ad4b0409881fe89a9d827ca.tar.gz linux-3.10-82732bdd663ee9dc1ad4b0409881fe89a9d827ca.tar.bz2 linux-3.10-82732bdd663ee9dc1ad4b0409881fe89a9d827ca.zip | |
regmap: Prepare LZO cache for variable block sizes
Give regcache_lzo_block_count() a copy of the map so that when we decide
we want to make the LZO cache more controllable we can more easily do so.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/base/regmap')
| -rw-r--r-- | drivers/base/regmap/regcache-lzo.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/base/regmap/regcache-lzo.c b/drivers/base/regmap/regcache-lzo.c index 066aeece362..0075690e5bb 100644 --- a/drivers/base/regmap/regcache-lzo.c +++ b/drivers/base/regmap/regcache-lzo.c @@ -27,7 +27,7 @@ struct regcache_lzo_ctx { }; #define LZO_BLOCK_NUM 8 -static int regcache_lzo_block_count(void) +static int regcache_lzo_block_count(struct regmap *map) { return LZO_BLOCK_NUM; } @@ -106,19 +106,22 @@ static inline int regcache_lzo_get_blkindex(struct regmap *map, unsigned int reg) { return (reg * map->cache_word_size) / - DIV_ROUND_UP(map->cache_size_raw, regcache_lzo_block_count()); + DIV_ROUND_UP(map->cache_size_raw, + regcache_lzo_block_count(map)); } static inline int regcache_lzo_get_blkpos(struct regmap *map, unsigned int reg) { - return reg % (DIV_ROUND_UP(map->cache_size_raw, regcache_lzo_block_count()) / + return reg % (DIV_ROUND_UP(map->cache_size_raw, + regcache_lzo_block_count(map)) / map->cache_word_size); } static inline int regcache_lzo_get_blksize(struct regmap *map) { - return DIV_ROUND_UP(map->cache_size_raw, regcache_lzo_block_count()); + return DIV_ROUND_UP(map->cache_size_raw, + regcache_lzo_block_count(map)); } static int regcache_lzo_init(struct regmap *map) @@ -131,7 +134,7 @@ static int regcache_lzo_init(struct regmap *map) ret = 0; - blkcount = regcache_lzo_block_count(); + blkcount = regcache_lzo_block_count(map); map->cache = kzalloc(blkcount * sizeof *lzo_blocks, GFP_KERNEL); if (!map->cache) @@ -203,7 +206,7 @@ static int regcache_lzo_exit(struct regmap *map) if (!lzo_blocks) return 0; - blkcount = regcache_lzo_block_count(); + blkcount = regcache_lzo_block_count(map); /* * the pointer to the bitmap used for syncing the cache * is shared amongst all lzo_blocks. Ensure it is freed |