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1# Copyright (c) 2006-2007 The Regents of The University of Michigan
2# Copyright (c) 2009 Advanced Micro Devices, Inc.
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
30import math
31import m5
32from m5.objects import *
33from m5.defines import buildEnv
34from Ruby import create_topology, create_directories
35from Ruby import send_evicts
36
37#
38# Declare caches used by the protocol
39#
40class L1Cache(RubyCache): pass
41class L2Cache(RubyCache): pass
42
43def define_options(parser):
44 return
45
46def create_system(options, full_system, system, dma_ports, ruby_system):
47
48 if buildEnv['PROTOCOL'] != 'MOESI_CMP_directory':
49 panic("This script requires the MOESI_CMP_directory protocol to be built.")
50
51 cpu_sequencers = []
52
53 #
54 # The ruby network creation expects the list of nodes in the system to be
55 # consistent with the NetDest list. Therefore the l1 controller nodes must be
56 # listed before the directory nodes and directory nodes before dma nodes, etc.
57 #
58 l1_cntrl_nodes = []
59 l2_cntrl_nodes = []
60 dma_cntrl_nodes = []
61
62 #
63 # Must create the individual controllers before the network to ensure the
64 # controller constructors are called before the network constructor
65 #
66 l2_bits = int(math.log(options.num_l2caches, 2))
67 block_size_bits = int(math.log(options.cacheline_size, 2))
68
69 for i in xrange(options.num_cpus):
70 #
71 # First create the Ruby objects associated with this cpu
72 #
73 l1i_cache = L1Cache(size = options.l1i_size,
74 assoc = options.l1i_assoc,
75 start_index_bit = block_size_bits,
76 is_icache = True)
77 l1d_cache = L1Cache(size = options.l1d_size,
78 assoc = options.l1d_assoc,
79 start_index_bit = block_size_bits,
80 is_icache = False)
81
82 # the ruby random tester reuses num_cpus to specify the
83 # number of cpu ports connected to the tester object, which
84 # is stored in system.cpu. because there is only ever one
85 # tester object, num_cpus is not necessarily equal to the
86 # size of system.cpu; therefore if len(system.cpu) == 1
87 # we use system.cpu[0] to set the clk_domain, thereby ensuring
88 # we don't index off the end of the cpu list.
89 if len(system.cpu) == 1:
90 clk_domain = system.cpu[0].clk_domain
91 else:
92 clk_domain = system.cpu[i].clk_domain
93
94 l1_cntrl = L1Cache_Controller(version=i, L1Icache=l1i_cache,
95 L1Dcache=l1d_cache,
96 l2_select_num_bits=l2_bits,
97 send_evictions=send_evicts(options),
98 transitions_per_cycle=options.ports,
99 clk_domain=clk_domain,
100 ruby_system=ruby_system)
101
102 cpu_seq = RubySequencer(version=i, icache=l1i_cache,
103 dcache=l1d_cache, clk_domain=clk_domain,
104 ruby_system=ruby_system)
105
106 l1_cntrl.sequencer = cpu_seq
107 exec("ruby_system.l1_cntrl%d = l1_cntrl" % i)
108
109 # Add controllers and sequencers to the appropriate lists
110 cpu_sequencers.append(cpu_seq)
111 l1_cntrl_nodes.append(l1_cntrl)
112
113 # Connect the L1 controllers and the network
114 l1_cntrl.mandatoryQueue = MessageBuffer()
115 l1_cntrl.requestFromL1Cache = MessageBuffer()
116 l1_cntrl.requestFromL1Cache.master = ruby_system.network.slave
117 l1_cntrl.responseFromL1Cache = MessageBuffer()
118 l1_cntrl.responseFromL1Cache.master = ruby_system.network.slave
119 l1_cntrl.requestToL1Cache = MessageBuffer()
120 l1_cntrl.requestToL1Cache.slave = ruby_system.network.master
121 l1_cntrl.responseToL1Cache = MessageBuffer()
122 l1_cntrl.responseToL1Cache.slave = ruby_system.network.master
123 l1_cntrl.triggerQueue = MessageBuffer(ordered = True)
124
125
126 l2_index_start = block_size_bits + l2_bits
127
128 for i in xrange(options.num_l2caches):
129 #
130 # First create the Ruby objects associated with this cpu
131 #
132 l2_cache = L2Cache(size = options.l2_size,
133 assoc = options.l2_assoc,
134 start_index_bit = l2_index_start)
135
136 l2_cntrl = L2Cache_Controller(version = i,
137 L2cache = l2_cache,
138 transitions_per_cycle = options.ports,
139 ruby_system = ruby_system)
140
141 exec("ruby_system.l2_cntrl%d = l2_cntrl" % i)
142 l2_cntrl_nodes.append(l2_cntrl)
143
144 # Connect the L2 controllers and the network
145 l2_cntrl.GlobalRequestFromL2Cache = MessageBuffer()
146 l2_cntrl.GlobalRequestFromL2Cache.master = ruby_system.network.slave
147 l2_cntrl.L1RequestFromL2Cache = MessageBuffer()
148 l2_cntrl.L1RequestFromL2Cache.master = ruby_system.network.slave
149 l2_cntrl.responseFromL2Cache = MessageBuffer()
150 l2_cntrl.responseFromL2Cache.master = ruby_system.network.slave
151
152 l2_cntrl.GlobalRequestToL2Cache = MessageBuffer()
153 l2_cntrl.GlobalRequestToL2Cache.slave = ruby_system.network.master
154 l2_cntrl.L1RequestToL2Cache = MessageBuffer()
155 l2_cntrl.L1RequestToL2Cache.slave = ruby_system.network.master
156 l2_cntrl.responseToL2Cache = MessageBuffer()
157 l2_cntrl.responseToL2Cache.slave = ruby_system.network.master
158 l2_cntrl.triggerQueue = MessageBuffer(ordered = True)
159
160 # Run each of the ruby memory controllers at a ratio of the frequency of
161 # the ruby system.
162 # clk_divider value is a fix to pass regression.
163 ruby_system.memctrl_clk_domain = DerivedClockDomain(
164 clk_domain=ruby_system.clk_domain,
165 clk_divider=3)
166
167
168 dir_cntrl_nodes = create_directories(options, system.mem_ranges,
169 ruby_system)
170 for dir_cntrl in dir_cntrl_nodes:
171 # Connect the directory controllers and the network
172 dir_cntrl.requestToDir = MessageBuffer()
173 dir_cntrl.requestToDir.slave = ruby_system.network.master
174 dir_cntrl.responseToDir = MessageBuffer()
175 dir_cntrl.responseToDir.slave = ruby_system.network.master
176 dir_cntrl.responseFromDir = MessageBuffer()
177 dir_cntrl.responseFromDir.master = ruby_system.network.slave
178 dir_cntrl.forwardFromDir = MessageBuffer()
179 dir_cntrl.forwardFromDir.master = ruby_system.network.slave
180 dir_cntrl.responseFromMemory = MessageBuffer()
181
182
183 for i, dma_port in enumerate(dma_ports):
184 #
185 # Create the Ruby objects associated with the dma controller
186 #
187 dma_seq = DMASequencer(version = i,
188 ruby_system = ruby_system,
189 slave = dma_port)
190
191 dma_cntrl = DMA_Controller(version = i,
192 dma_sequencer = dma_seq,
193 transitions_per_cycle = options.ports,
194 ruby_system = ruby_system)
195
196 exec("ruby_system.dma_cntrl%d = dma_cntrl" % i)
197 dma_cntrl_nodes.append(dma_cntrl)
198
199 # Connect the dma controller to the network
200 dma_cntrl.mandatoryQueue = MessageBuffer()
201 dma_cntrl.responseFromDir = MessageBuffer()
202 dma_cntrl.responseFromDir.slave = ruby_system.network.master
203 dma_cntrl.reqToDir = MessageBuffer()
204 dma_cntrl.reqToDir.master = ruby_system.network.slave
205 dma_cntrl.respToDir = MessageBuffer()
206 dma_cntrl.respToDir.master = ruby_system.network.slave
207 dma_cntrl.triggerQueue = MessageBuffer(ordered = True)
208
209
210 all_cntrls = l1_cntrl_nodes + \
211 l2_cntrl_nodes + \
212 dir_cntrl_nodes + \
213 dma_cntrl_nodes
214
215 # Create the io controller and the sequencer
216 if full_system:
217 io_seq = DMASequencer(version=len(dma_ports), ruby_system=ruby_system)
218 ruby_system._io_port = io_seq
219 io_controller = DMA_Controller(version = len(dma_ports),
220 dma_sequencer = io_seq,
221 ruby_system = ruby_system)
222 ruby_system.io_controller = io_controller
223
224 # Connect the dma controller to the network
225 io_controller.mandatoryQueue = MessageBuffer()
226 io_controller.responseFromDir = MessageBuffer()
227 io_controller.responseFromDir.slave = ruby_system.network.master
228 io_controller.reqToDir = MessageBuffer()
229 io_controller.reqToDir.master = ruby_system.network.slave
230 io_controller.respToDir = MessageBuffer()
231 io_controller.respToDir.master = ruby_system.network.slave
232 io_controller.triggerQueue = MessageBuffer(ordered = True)
233
234 all_cntrls = all_cntrls + [io_controller]
235
236
237 ruby_system.network.number_of_virtual_networks = 3
238 topology = create_topology(all_cntrls, options)
239 return (cpu_sequencers, dir_cntrl_nodes, topology)