diff options
Diffstat (limited to 'src/gpgpu-sim/l2cache.cc')
| -rw-r--r-- | src/gpgpu-sim/l2cache.cc | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/src/gpgpu-sim/l2cache.cc b/src/gpgpu-sim/l2cache.cc index 914e449..9bee822 100644 --- a/src/gpgpu-sim/l2cache.cc +++ b/src/gpgpu-sim/l2cache.cc @@ -72,7 +72,9 @@ memory_partition_unit::memory_partition_unit( unsigned partition_id, snprintf(L2c_name, 32, "L2_bank_%03d", m_id); m_L2interface = new L2interface(this); m_mf_allocator = new partition_mf_allocator(config); - m_L2cache = new data_cache(L2c_name,m_config->m_L2_config,-1,-1,m_L2interface,m_mf_allocator,IN_PARTITION_L2_MISS_QUEUE); + + if(!m_config->m_L2_config.disabled()) + m_L2cache = new data_cache(L2c_name,m_config->m_L2_config,-1,-1,m_L2interface,m_mf_allocator,IN_PARTITION_L2_MISS_QUEUE); unsigned int icnt_L2; unsigned int L2_dram; @@ -99,17 +101,20 @@ memory_partition_unit::~memory_partition_unit() void memory_partition_unit::cache_cycle( unsigned cycle ) { - // L2 fill responses - if ( m_L2cache->access_ready() && !m_L2_icnt_queue->full() ) { - mem_fetch *mf = m_L2cache->next_access(); - mf->set_reply(); - mf->set_status(IN_PARTITION_L2_TO_ICNT_QUEUE,gpu_sim_cycle+gpu_tot_sim_cycle); - m_L2_icnt_queue->push(mf); + // L2 fill responses + if( !m_config->m_L2_config.disabled()) { + if ( m_L2cache->access_ready() && !m_L2_icnt_queue->full() ) { + mem_fetch *mf = m_L2cache->next_access(); + mf->set_reply(); + mf->set_status(IN_PARTITION_L2_TO_ICNT_QUEUE,gpu_sim_cycle+gpu_tot_sim_cycle); + m_L2_icnt_queue->push(mf); + } } + // DRAM to L2 (texture) and icnt (not texture) if ( !m_dram_L2_queue->empty() ) { mem_fetch *mf = m_dram_L2_queue->top(); - if ( m_L2cache->waiting_for_fill(mf) ) { + if ( !m_config->m_L2_config.disabled() && m_L2cache->waiting_for_fill(mf) ) { mf->set_status(IN_PARTITION_L2_FILL_QUEUE,gpu_sim_cycle+gpu_tot_sim_cycle); m_L2cache->fill(mf,gpu_sim_cycle+gpu_tot_sim_cycle); m_dram_L2_queue->pop(); @@ -121,12 +126,16 @@ void memory_partition_unit::cache_cycle( unsigned cycle ) } // prior L2 misses inserted into m_L2_dram_queue here - m_L2cache->cycle(); + if( !m_config->m_L2_config.disabled() ) + m_L2cache->cycle(); // new L2 texture accesses and/or non-texture accesses if ( !m_L2_dram_queue->full() && !m_icnt_L2_queue->empty() ) { mem_fetch *mf = m_icnt_L2_queue->top(); - if ( (m_config->m_L2_texure_only && mf->istexture()) || (!m_config->m_L2_texure_only) ) { + if ( !m_config->m_L2_config.disabled() && + ( (m_config->m_L2_texure_only && mf->istexture()) || (!m_config->m_L2_texure_only) ) + ) { + // L2 is enabled and access is for L2 if ( !m_L2_icnt_queue->full() ) { std::list<cache_event> events; enum cache_request_status status = m_L2cache->access(mf->get_partition_addr(),mf,gpu_sim_cycle+gpu_tot_sim_cycle,events); @@ -160,7 +169,7 @@ void memory_partition_unit::cache_cycle( unsigned cycle ) } } } else { - // non-texture access + // L2 is disabled or non-texture access to texture-only L2 mf->set_status(IN_PARTITION_L2_TO_DRAM_QUEUE,gpu_sim_cycle+gpu_tot_sim_cycle); m_L2_dram_queue->push(mf); m_icnt_L2_queue->pop(); @@ -184,7 +193,8 @@ bool memory_partition_unit::full() const void memory_partition_unit::print_cache_stat(unsigned &accesses, unsigned &misses) const { FILE *fp = stdout; - m_L2cache->print(fp,accesses,misses); + if( !m_config->m_L2_config.disabled() ) + m_L2cache->print(fp,accesses,misses); } void memory_partition_unit::print( FILE *fp ) const @@ -199,7 +209,8 @@ void memory_partition_unit::print( FILE *fp ) const fprintf(fp," <NULL mem_fetch?>\n"); } } - m_L2cache->display_state(fp); + if( !m_config->m_L2_config.disabled() ) + m_L2cache->display_state(fp); m_dram->print(fp); } |