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bsp/arm: Add cache size methods

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Add new methods which deliver the cache sizes of for supported cache levels.
This commit is contained in:
Ralf Kirchner
2014-04-17 11:19:48 +02:00
committed by Sebastian Huber
parent 1c62f74d22
commit 62fa1ea25e
2 changed files with 115 additions and 0 deletions
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33
c/src/lib/libbsp/arm/shared/include/arm-cache-l1.h
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@@ -463,6 +463,39 @@ static inline void arm_cache_l1_enable_instruction( void )
arm_cache_l1_select( ARM_CACHE_L1_CSS_ID_DATA );
}
static inline size_t arm_cache_l1_get_data_cache_size( void )
{
size_t size;
uint32_t line_size = 0;
uint32_t associativity = 0;
uint32_t num_sets = 0;
arm_cache_l1_properties( &line_size, &associativity,
&num_sets );
size = (1 << line_size) * associativity * num_sets;
return size;
}
static inline size_t arm_cache_l1_get_instruction_cache_size( void )
{
size_t size;
uint32_t line_size = 0;
uint32_t associativity = 0;
uint32_t num_sets = 0;
arm_cache_l1_select( ARM_CACHE_L1_CSS_ID_INSTRUCTION );
arm_cache_l1_properties( &line_size, &associativity,
&num_sets );
arm_cache_l1_select( ARM_CACHE_L1_CSS_ID_DATA );
size = (1 << line_size) * associativity * num_sets;
return size;
}
#ifdef __cplusplus
}
#endif /* __cplusplus */