Ruby.py revision 9318:dec0b284ded9
1# Copyright (c) 2012 ARM Limited 2# All rights reserved. 3# 4# The license below extends only to copyright in the software and shall 5# not be construed as granting a license to any other intellectual 6# property including but not limited to intellectual property relating 7# to a hardware implementation of the functionality of the software 8# licensed hereunder. You may use the software subject to the license 9# terms below provided that you ensure that this notice is replicated 10# unmodified and in its entirety in all distributions of the software, 11# modified or unmodified, in source code or in binary form. 12# 13# Copyright (c) 2006-2007 The Regents of The University of Michigan 14# Copyright (c) 2009 Advanced Micro Devices, Inc. 15# All rights reserved. 16# 17# Redistribution and use in source and binary forms, with or without 18# modification, are permitted provided that the following conditions are 19# met: redistributions of source code must retain the above copyright 20# notice, this list of conditions and the following disclaimer; 21# redistributions in binary form must reproduce the above copyright 22# notice, this list of conditions and the following disclaimer in the 23# documentation and/or other materials provided with the distribution; 24# neither the name of the copyright holders nor the names of its 25# contributors may be used to endorse or promote products derived from 26# this software without specific prior written permission. 27# 28# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 31# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 32# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 33# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 34# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 35# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 36# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 37# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 38# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 39# 40# Authors: Brad Beckmann 41 42import math 43import m5 44from m5.objects import * 45from m5.defines import buildEnv 46 47def define_options(parser): 48 # By default, ruby uses the simple timing cpu 49 parser.set_defaults(cpu_type="timing") 50 51 # ruby network options 52 parser.add_option("--topology", type="string", default="Crossbar", 53 help="check src/mem/ruby/network/topologies for complete set") 54 parser.add_option("--mesh-rows", type="int", default=1, 55 help="the number of rows in the mesh topology") 56 parser.add_option("--garnet-network", type="string", default=None, 57 help="'fixed'|'flexible'") 58 parser.add_option("--network-fault-model", action="store_true", default=False, 59 help="enable network fault model: see src/mem/ruby/network/fault_model/") 60 61 # ruby mapping options 62 parser.add_option("--numa-high-bit", type="int", default=0, 63 help="high order address bit to use for numa mapping. " \ 64 "0 = highest bit, not specified = lowest bit") 65 66 # ruby sparse memory options 67 parser.add_option("--use-map", action="store_true", default=False) 68 parser.add_option("--map-levels", type="int", default=4) 69 70 parser.add_option("--recycle-latency", type="int", default=10, 71 help="Recycle latency for ruby controller input buffers") 72 73 parser.add_option("--random_seed", type="int", default=1234, 74 help="Used for seeding the random number generator") 75 76 parser.add_option("--ruby_stats", type="string", default="ruby.stats") 77 78 protocol = buildEnv['PROTOCOL'] 79 exec "import %s" % protocol 80 eval("%s.define_options(parser)" % protocol) 81 82def create_topology(controllers, options): 83 """ Called from create_system in configs/ruby/<protocol>.py 84 Must return an object which is a subclass of BaseTopology 85 found in configs/topologies/BaseTopology.py 86 This is a wrapper for the legacy topologies. 87 """ 88 exec "import %s as Topo" % options.topology 89 topology = eval("Topo.%s(controllers)" % options.topology) 90 return topology 91 92def create_system(options, system, piobus = None, dma_ports = []): 93 94 system.ruby = RubySystem(clock = options.clock, 95 stats_filename = options.ruby_stats, 96 no_mem_vec = options.use_map) 97 ruby = system.ruby 98 99 protocol = buildEnv['PROTOCOL'] 100 exec "import %s" % protocol 101 try: 102 (cpu_sequencers, dir_cntrls, topology) = \ 103 eval("%s.create_system(options, system, piobus, dma_ports, ruby)" 104 % protocol) 105 except: 106 print "Error: could not create sytem for ruby protocol %s" % protocol 107 raise 108 109 # Create a port proxy for connecting the system port. This is 110 # independent of the protocol and kept in the protocol-agnostic 111 # part (i.e. here). 112 sys_port_proxy = RubyPortProxy(ruby_system = ruby) 113 # Give the system port proxy a SimObject parent without creating a 114 # full-fledged controller 115 system.sys_port_proxy = sys_port_proxy 116 117 # Connect the system port for loading of binaries etc 118 system.system_port = system.sys_port_proxy.slave 119 120 121 # 122 # Set the network classes based on the command line options 123 # 124 if options.garnet_network == "fixed": 125 class NetworkClass(GarnetNetwork_d): pass 126 class IntLinkClass(GarnetIntLink_d): pass 127 class ExtLinkClass(GarnetExtLink_d): pass 128 class RouterClass(GarnetRouter_d): pass 129 elif options.garnet_network == "flexible": 130 class NetworkClass(GarnetNetwork): pass 131 class IntLinkClass(GarnetIntLink): pass 132 class ExtLinkClass(GarnetExtLink): pass 133 class RouterClass(GarnetRouter): pass 134 else: 135 class NetworkClass(SimpleNetwork): pass 136 class IntLinkClass(SimpleIntLink): pass 137 class ExtLinkClass(SimpleExtLink): pass 138 class RouterClass(Switch): pass 139 140 # 141 # Important: the topology must be instantiated before the network and after 142 # the controllers. Hence the separation between topology definition and 143 # instantiation. 144 # 145 # gem5 SimObject defined in src/mem/ruby/network/Network.py 146 net_topology = Topology() 147 net_topology.description = topology.description 148 149 routers, int_links, ext_links = topology.makeTopology(options, 150 IntLinkClass, ExtLinkClass, RouterClass) 151 152 net_topology.routers = routers 153 net_topology.int_links = int_links 154 net_topology.ext_links = ext_links 155 156 157 if options.network_fault_model: 158 assert(options.garnet_network == "fixed") 159 fault_model = FaultModel() 160 network = NetworkClass(ruby_system = ruby, topology = net_topology,\ 161 enable_fault_model=True, fault_model = fault_model) 162 else: 163 network = NetworkClass(ruby_system = ruby, topology = net_topology) 164 165 # 166 # Loop through the directory controlers. 167 # Determine the total memory size of the ruby system and verify it is equal 168 # to physmem. However, if Ruby memory is using sparse memory in SE 169 # mode, then the system should not back-up the memory state with 170 # the Memory Vector and thus the memory size bytes should stay at 0. 171 # Also set the numa bits to the appropriate values. 172 # 173 total_mem_size = MemorySize('0B') 174 175 dir_bits = int(math.log(options.num_dirs, 2)) 176 ruby.block_size_bytes = options.cacheline_size 177 block_size_bits = int(math.log(options.cacheline_size, 2)) 178 179 if options.numa_high_bit: 180 numa_bit = options.numa_high_bit 181 else: 182 # if the numa_bit is not specified, set the directory bits as the 183 # lowest bits above the block offset bits, and the numa_bit as the 184 # highest of those directory bits 185 numa_bit = block_size_bits + dir_bits - 1 186 187 for dir_cntrl in dir_cntrls: 188 total_mem_size.value += dir_cntrl.directory.size.value 189 dir_cntrl.directory.numa_high_bit = numa_bit 190 191 phys_mem_size = sum(map(lambda mem: mem.range.size(), 192 system.memories.unproxy(system))) 193 assert(total_mem_size.value == phys_mem_size) 194 195 ruby_profiler = RubyProfiler(ruby_system = ruby, 196 num_of_sequencers = len(cpu_sequencers)) 197 ruby.network = network 198 ruby.profiler = ruby_profiler 199 ruby.mem_size = total_mem_size 200 ruby._cpu_ruby_ports = cpu_sequencers 201 ruby.random_seed = options.random_seed 202