diff options
Diffstat (limited to 'src/gpgpu-sim/gpu-cache.h')
| -rw-r--r-- | src/gpgpu-sim/gpu-cache.h | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/src/gpgpu-sim/gpu-cache.h b/src/gpgpu-sim/gpu-cache.h index ac5fee8..2d50e67 100644 --- a/src/gpgpu-sim/gpu-cache.h +++ b/src/gpgpu-sim/gpu-cache.h @@ -35,6 +35,8 @@ #include "../abstract_hardware_model.h" #include "../tr1_hash_map.h" +#include "addrdec.h" + enum cache_block_state { INVALID, RESERVED, @@ -118,6 +120,7 @@ enum mshr_config_t { ASSOC // normal cache }; + class cache_config { public: cache_config() @@ -175,6 +178,7 @@ public: case 'N': m_write_alloc_policy = NO_WRITE_ALLOCATE; break; default: exit_parse_error(); } + } bool disabled() const { return m_disabled;} unsigned get_line_sz() const @@ -195,13 +199,19 @@ public: m_nset, m_assoc, m_line_sz ); } - unsigned set_index( new_addr_type addr ) const + virtual unsigned set_index( new_addr_type addr ) const { return(addr >> m_line_sz_log2) & (m_nset-1); } + new_addr_type tag( new_addr_type addr ) const { - return addr >> (m_line_sz_log2+m_nset_log2); + // For generality, the tag includes both index and tag. This allows for more complex set index + // calculations that can result in different indexes mapping to the same set, thus the full + // tag + index is required to check for hit/miss. Tag is now identical to the block address. + + //return addr >> (m_line_sz_log2+m_nset_log2); + return addr & ~(m_line_sz-1); } new_addr_type block_addr( new_addr_type addr ) const { @@ -210,7 +220,7 @@ public: char *m_config_string; -private: +protected: void exit_parse_error() { printf("GPGPU-Sim uArch: cache configuration parsing error (%s)\n", m_config_string ); @@ -256,6 +266,16 @@ private: }; +class l2_cache_config : public cache_config { +public: + l2_cache_config() : cache_config(){} + void init(linear_to_raw_address_translation *address_mapping); + virtual unsigned set_index(new_addr_type addr) const; + +private: + linear_to_raw_address_translation *m_address_mapping; +}; + class tag_array { public: tag_array( const cache_config &config, int core_id, int type_id ); |