diff options
Diffstat (limited to 'configs/ruby/Ruby.py')
| -rw-r--r-- | configs/ruby/Ruby.py | 88 |
1 files changed, 54 insertions, 34 deletions
diff --git a/configs/ruby/Ruby.py b/configs/ruby/Ruby.py index b7fd5078b..35ff66a0c 100644 --- a/configs/ruby/Ruby.py +++ b/configs/ruby/Ruby.py @@ -45,6 +45,7 @@ from m5.objects import * from m5.defines import buildEnv from m5.util import addToPath, fatal +import MemConfig addToPath('../topologies') def define_options(parser): @@ -75,22 +76,67 @@ def define_options(parser): help="high order address bit to use for numa mapping. " \ "0 = highest bit, not specified = lowest bit") - # ruby sparse memory options - parser.add_option("--use-map", action="store_true", default=False) - parser.add_option("--map-levels", type="int", default=4) - parser.add_option("--recycle-latency", type="int", default=10, help="Recycle latency for ruby controller input buffers") parser.add_option("--random_seed", type="int", default=1234, help="Used for seeding the random number generator") - parser.add_option("--ruby_stats", type="string", default="ruby.stats") - protocol = buildEnv['PROTOCOL'] exec "import %s" % protocol eval("%s.define_options(parser)" % protocol) +def setup_memory_controllers(system, ruby, dir_cntrls, options): + ruby.block_size_bytes = options.cacheline_size + ruby.memory_size_bits = 48 + block_size_bits = int(math.log(options.cacheline_size, 2)) + + if options.numa_high_bit: + numa_bit = options.numa_high_bit + else: + # if the numa_bit is not specified, set the directory bits as the + # lowest bits above the block offset bits, and the numa_bit as the + # highest of those directory bits + dir_bits = int(math.log(options.num_dirs, 2)) + numa_bit = block_size_bits + dir_bits - 1 + + index = 0 + mem_ctrls = [] + crossbars = [] + + # Sets bits to be used for interleaving. Creates memory controllers + # attached to a directory controller. A separate controller is created + # for each address range as the abstract memory can handle only one + # contiguous address range as of now. + for dir_cntrl in dir_cntrls: + dir_cntrl.directory.numa_high_bit = numa_bit + + crossbar = None + if len(system.mem_ranges) > 1: + crossbar = NoncoherentXBar() + crossbars.append(crossbar) + dir_cntrl.memory = crossbar.slave + + for r in system.mem_ranges: + mem_ctrl = MemConfig.create_mem_ctrl( + MemConfig.get(options.mem_type), r, index, options.num_dirs, + int(math.log(options.num_dirs, 2)), options.cacheline_size) + + mem_ctrls.append(mem_ctrl) + + if crossbar != None: + mem_ctrl.port = crossbar.master + else: + mem_ctrl.port = dir_cntrl.memory + + index += 1 + + system.mem_ctrls = mem_ctrls + + if len(crossbars) > 0: + ruby.crossbars = crossbars + + def create_topology(controllers, options): """ Called from create_system in configs/ruby/<protocol>.py Must return an object which is a subclass of BaseTopology @@ -103,7 +149,7 @@ def create_topology(controllers, options): def create_system(options, full_system, system, piobus = None, dma_ports = []): - system.ruby = RubySystem(no_mem_vec = options.use_map) + system.ruby = RubySystem() ruby = system.ruby # Set the network classes based on the command line options @@ -169,33 +215,7 @@ def create_system(options, full_system, system, piobus = None, dma_ports = []): network.enable_fault_model = True network.fault_model = FaultModel() - # Loop through the directory controlers. - # Determine the total memory size of the ruby system and verify it is equal - # to physmem. However, if Ruby memory is using sparse memory in SE - # mode, then the system should not back-up the memory state with - # the Memory Vector and thus the memory size bytes should stay at 0. - # Also set the numa bits to the appropriate values. - total_mem_size = MemorySize('0B') - - ruby.block_size_bytes = options.cacheline_size - block_size_bits = int(math.log(options.cacheline_size, 2)) - - if options.numa_high_bit: - numa_bit = options.numa_high_bit - else: - # if the numa_bit is not specified, set the directory bits as the - # lowest bits above the block offset bits, and the numa_bit as the - # highest of those directory bits - dir_bits = int(math.log(options.num_dirs, 2)) - numa_bit = block_size_bits + dir_bits - 1 - - for dir_cntrl in dir_cntrls: - total_mem_size.value += dir_cntrl.directory.size.value - dir_cntrl.directory.numa_high_bit = numa_bit - - phys_mem_size = sum(map(lambda r: r.size(), system.mem_ranges)) - assert(total_mem_size.value == phys_mem_size) - ruby.mem_size = total_mem_size + setup_memory_controllers(system, ruby, dir_cntrls, options) # Connect the cpu sequencers and the piobus if piobus != None: |