Garnet_standalone.py revision 12065
1# Copyright (c) 2009 Advanced Micro Devices, Inc. 2# Copyright (c) 2016 Georgia Institute of Technology 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions are 7# met: redistributions of source code must retain the above copyright 8# notice, this list of conditions and the following disclaimer; 9# redistributions in binary form must reproduce the above copyright 10# notice, this list of conditions and the following disclaimer in the 11# documentation and/or other materials provided with the distribution; 12# neither the name of the copyright holders nor the names of its 13# contributors may be used to endorse or promote products derived from 14# this software without specific prior written permission. 15# 16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27# 28# Authors: Brad Beckmann 29# Tushar Krishna 30 31import m5 32from m5.objects import * 33from m5.defines import buildEnv 34from m5.util import addToPath 35from Ruby import create_topology, create_directories 36 37# 38# Declare caches used by the protocol 39# 40class L1Cache(RubyCache): pass 41 42def define_options(parser): 43 return 44 45def create_system(options, full_system, system, dma_ports, ruby_system): 46 if buildEnv['PROTOCOL'] != 'Garnet_standalone': 47 panic("This script requires Garnet_standalone protocol to be built.") 48 49 cpu_sequencers = [] 50 51 # 52 # The Garnet_standalone protocol does not support fs nor dma 53 # 54 assert(dma_ports == []) 55 56 # 57 # The ruby network creation expects the list of nodes in the system to be 58 # consistent with the NetDest list. 59 # Therefore the l1 controller nodes must be listed before 60 # the directory nodes and directory nodes before dma nodes, etc. 61 l1_cntrl_nodes = [] 62 63 # 64 # Must create the individual controllers before the network to ensure the 65 # controller constructors are called before the network constructor 66 # 67 68 for i in xrange(options.num_cpus): 69 # 70 # First create the Ruby objects associated with this cpu 71 # Only one cache exists for this protocol, so by default use the L1D 72 # config parameters. 73 # 74 cache = L1Cache(size = options.l1d_size, 75 assoc = options.l1d_assoc) 76 77 # 78 # Only one unified L1 cache exists. Can cache instructions and data. 79 # 80 l1_cntrl = L1Cache_Controller(version = i, 81 cacheMemory = cache, 82 ruby_system = ruby_system) 83 84 cpu_seq = RubySequencer(icache = cache, 85 dcache = cache, 86 garnet_standalone = True, 87 ruby_system = ruby_system) 88 89 l1_cntrl.sequencer = cpu_seq 90 exec("ruby_system.l1_cntrl%d = l1_cntrl" % i) 91 92 # Add controllers and sequencers to the appropriate lists 93 cpu_sequencers.append(cpu_seq) 94 l1_cntrl_nodes.append(l1_cntrl) 95 96 # Connect the L1 controllers and the network 97 l1_cntrl.mandatoryQueue = MessageBuffer() 98 l1_cntrl.requestFromCache = MessageBuffer() 99 l1_cntrl.responseFromCache = MessageBuffer() 100 l1_cntrl.forwardFromCache = MessageBuffer() 101 102 103 dir_cntrl_nodes = create_directories(options, system.mem_ranges, 104 ruby_system) 105 for dir_cntrl in dir_cntrl_nodes: 106 # Connect the directory controllers and the network 107 dir_cntrl.requestToDir = MessageBuffer() 108 dir_cntrl.forwardToDir = MessageBuffer() 109 dir_cntrl.responseToDir = MessageBuffer() 110 111 112 all_cntrls = l1_cntrl_nodes + dir_cntrl_nodes 113 ruby_system.network.number_of_virtual_networks = 3 114 topology = create_topology(all_cntrls, options) 115 return (cpu_sequencers, dir_cntrl_nodes, topology) 116