diff options
| -rw-r--r-- | src/mem/ruby/config/MI_example-homogeneous.rb | 10 | ||||
| -rw-r--r-- | src/mem/ruby/config/cfg.rb | 16 | ||||
| -rw-r--r-- | src/mem/ruby/system/CacheMemory.cc | 10 |
3 files changed, 23 insertions, 13 deletions
diff --git a/src/mem/ruby/config/MI_example-homogeneous.rb b/src/mem/ruby/config/MI_example-homogeneous.rb index b7842aaaf..1ed81ee42 100644 --- a/src/mem/ruby/config/MI_example-homogeneous.rb +++ b/src/mem/ruby/config/MI_example-homogeneous.rb @@ -13,7 +13,7 @@ RubySystem.reset # default values num_cores = 2 -l1_cache_size_kb = 32 +l1_cache_size_kb = 32768 l1_cache_assoc = 8 l1_cache_latency = 1 num_memories = 2 @@ -37,6 +37,12 @@ for i in 0..$*.size-1 do elsif $*[i] == "-s" memory_size_mb = $*[i+1].to_i i = i + 1 + elsif $*[i] == "-C" + l1_cache_size_bytes = $*[i+1].to_i + i = i + 1 + elsif $*[i] == "-A" + l1_cache_assoc = $*[i+1].to_i + i = i + 1 elsif $*[i] == "-D" num_dma = $*[i+1].to_i i = i + 1 @@ -51,7 +57,7 @@ assert(protocol == "MI_example", __FILE__ + " cannot be used with protocol " + p require protocol+".rb" num_cores.times { |n| - cache = SetAssociativeCache.new("l1u_"+n.to_s, l1_cache_size_kb, l1_cache_latency, l1_cache_assoc, "PSEUDO_LRU") + cache = SetAssociativeCache.new("l1u_"+n.to_s, l1_cache_size_bytes, l1_cache_latency, l1_cache_assoc, "PSEUDO_LRU") sequencer = Sequencer.new("Sequencer_"+n.to_s, cache, cache) iface_ports << sequencer net_ports << MI_example_CacheController.new("L1CacheController_"+n.to_s, diff --git a/src/mem/ruby/config/cfg.rb b/src/mem/ruby/config/cfg.rb index 1c261544d..f2564e1d3 100644 --- a/src/mem/ruby/config/cfg.rb +++ b/src/mem/ruby/config/cfg.rb @@ -401,17 +401,17 @@ class DMAController < NetPort end class Cache < LibRubyObject - attr :size_kb, :latency + attr :size, :latency attr_writer :controller - def initialize(obj_name, size_kb, latency) + def initialize(obj_name, size, latency) super(obj_name) - assert size_kb.is_a?(Integer), "Cache size must be an integer" - @size_kb = size_kb + assert size.is_a?(Integer), "Cache size must be an integer" + @size = size @latency = latency end def args - "controller "+@controller.obj_name+" size_kb "+@size_kb.to_s+" latency "+@latency.to_s + "controller "+@controller.obj_name+" size "+@size.to_s+" latency "+@latency.to_s end end @@ -422,8 +422,8 @@ class SetAssociativeCache < Cache # when an integer, it represents the number of cycles for a hit # when a float, it represents the cache access time in ns # when set to "auto", libruby will attempt to find a realistic latency by running CACTI - def initialize(obj_name, size_kb, latency, assoc, replacement_policy) - super(obj_name, size_kb, latency) + def initialize(obj_name, size, latency, assoc, replacement_policy) + super(obj_name, size, latency) @assoc = assoc @replacement_policy = replacement_policy end @@ -431,7 +431,7 @@ class SetAssociativeCache < Cache def calculateLatency() if @latency == "auto" cacti_args = Array.new() - cacti_args << (@size_kb*1024) << RubySystem.block_size_bytes << @assoc + cacti_args << (@size) << RubySystem.block_size_bytes << @assoc cacti_args << 1 << 0 << 0 << 0 << 1 cacti_args << RubySystem.tech_nm << RubySystem.block_size_bytes*8 cacti_args << 0 << 0 << 0 << 1 << 0 << 0 << 0 << 0 << 1 diff --git a/src/mem/ruby/system/CacheMemory.cc b/src/mem/ruby/system/CacheMemory.cc index 04adbcf69..a5c881a61 100644 --- a/src/mem/ruby/system/CacheMemory.cc +++ b/src/mem/ruby/system/CacheMemory.cc @@ -52,12 +52,12 @@ CacheMemory::CacheMemory(const string & name) void CacheMemory::init(const vector<string> & argv) { - int cache_size = 0; + int cache_size = -1; string policy; m_controller = NULL; for (uint32 i=0; i<argv.size(); i+=2) { - if (argv[i] == "size_kb") { + if (argv[i] == "size") { cache_size = atoi(argv[i+1].c_str()); } else if (argv[i] == "latency") { m_latency = atoi(argv[i+1].c_str()); @@ -72,8 +72,12 @@ void CacheMemory::init(const vector<string> & argv) } } - m_cache_num_sets = cache_size / m_cache_assoc; + assert(cache_size != -1); + + m_cache_num_sets = (cache_size / m_cache_assoc) / RubySystem::getBlockSizeBytes(); + assert(m_cache_num_sets > 1); m_cache_num_set_bits = log_int(m_cache_num_sets); + assert(m_cache_num_set_bits > 0); if(policy == "PSEUDO_LRU") m_replacementPolicy_ptr = new PseudoLRUPolicy(m_cache_num_sets, m_cache_assoc); |