1# Copyright (c) 2012, 2017-2018 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
42from __future__ import print_function
43
44import math
45import m5
46from m5.objects import *
47from m5.defines import buildEnv
48from m5.util import addToPath, fatal
49
50from common import MemConfig
51
52from topologies import *
53from network import Network
54
55def define_options(parser):
56 # By default, ruby uses the simple timing cpu
57 parser.set_defaults(cpu_type="TimingSimpleCPU")
58
59 parser.add_option("--ruby-clock", action="store", type="string",
60 default='2GHz',
61 help="Clock for blocks running at Ruby system's speed")
62
63 parser.add_option("--access-backing-store", action="store_true", default=False,
64 help="Should ruby maintain a second copy of memory")
65
66 # Options related to cache structure
67 parser.add_option("--ports", action="store", type="int", default=4,
68 help="used of transitions per cycle which is a proxy \
69 for the number of ports.")
70
71 # network options are in network/Network.py
72
73 # ruby mapping options
74 parser.add_option("--numa-high-bit", type="int", default=0,
75 help="high order address bit to use for numa mapping. " \
76 "0 = highest bit, not specified = lowest bit")
77
78 parser.add_option("--recycle-latency", type="int", default=10,
79 help="Recycle latency for ruby controller input buffers")
80
81 protocol = buildEnv['PROTOCOL']
82 exec "import %s" % protocol
83 eval("%s.define_options(parser)" % protocol)
84 Network.define_options(parser)
85
86def setup_memory_controllers(system, ruby, dir_cntrls, options):
87 ruby.block_size_bytes = options.cacheline_size
88 ruby.memory_size_bits = 48
89
90 index = 0
91 mem_ctrls = []
92 crossbars = []
93
94 if options.numa_high_bit:
95 dir_bits = int(math.log(options.num_dirs, 2))
96 intlv_size = 2 ** (options.numa_high_bit - dir_bits + 1)
97 else:
98 # if the numa_bit is not specified, set the directory bits as the
99 # lowest bits above the block offset bits
100 intlv_size = options.cacheline_size
101
102 # Sets bits to be used for interleaving. Creates memory controllers
103 # attached to a directory controller. A separate controller is created
104 # for each address range as the abstract memory can handle only one
105 # contiguous address range as of now.
106 for dir_cntrl in dir_cntrls:
107 crossbar = None
108 if len(system.mem_ranges) > 1:
109 crossbar = IOXBar()
110 crossbars.append(crossbar)
111 dir_cntrl.memory = crossbar.slave
112
113 dir_ranges = []
114 for r in system.mem_ranges:
115 mem_ctrl = MemConfig.create_mem_ctrl(
116 MemConfig.get(options.mem_type), r, index, options.num_dirs,
117 int(math.log(options.num_dirs, 2)), intlv_size)
118
119 if options.access_backing_store:
120 mem_ctrl.kvm_map=False
121
122 mem_ctrls.append(mem_ctrl)
123 dir_ranges.append(mem_ctrl.range)
124
125 if crossbar != None:
126 mem_ctrl.port = crossbar.master
127 else:
128 mem_ctrl.port = dir_cntrl.memory
129
130 index += 1
131 dir_cntrl.addr_ranges = dir_ranges
132
133 system.mem_ctrls = mem_ctrls
134
135 if len(crossbars) > 0:
136 ruby.crossbars = crossbars
137
138
139def create_topology(controllers, options):
140 """ Called from create_system in configs/ruby/<protocol>.py
141 Must return an object which is a subclass of BaseTopology
142 found in configs/topologies/BaseTopology.py
143 This is a wrapper for the legacy topologies.
144 """
145 exec "import topologies.%s as Topo" % options.topology
146 topology = eval("Topo.%s(controllers)" % options.topology)
147 return topology
148
149def create_system(options, full_system, system, piobus = None, dma_ports = [],
150 bootmem=None):
151
152 system.ruby = RubySystem()
153 ruby = system.ruby
154
155 # Create the network object
156 (network, IntLinkClass, ExtLinkClass, RouterClass, InterfaceClass) = \
157 Network.create_network(options, ruby)
158 ruby.network = network
159
160 protocol = buildEnv['PROTOCOL']
161 exec "import %s" % protocol
162 try:
163 (cpu_sequencers, dir_cntrls, topology) = \
164 eval("%s.create_system(options, full_system, system, dma_ports,\
165 bootmem, ruby)"
166 % protocol)
167 except:
168 print("Error: could not create sytem for ruby protocol %s" % protocol)
169 raise
170
171 # Create the network topology
172 topology.makeTopology(options, network, IntLinkClass, ExtLinkClass,
173 RouterClass)
174
175 # Initialize network based on topology
176 Network.init_network(options, network, InterfaceClass)
177
178 # Create a port proxy for connecting the system port. This is
179 # independent of the protocol and kept in the protocol-agnostic
180 # part (i.e. here).
181 sys_port_proxy = RubyPortProxy(ruby_system = ruby)
182 if piobus is not None:
183 sys_port_proxy.pio_master_port = piobus.slave
184
185 # Give the system port proxy a SimObject parent without creating a
186 # full-fledged controller
187 system.sys_port_proxy = sys_port_proxy
188
189 # Connect the system port for loading of binaries etc
190 system.system_port = system.sys_port_proxy.slave
191
192 setup_memory_controllers(system, ruby, dir_cntrls, options)
193
194 # Connect the cpu sequencers and the piobus
195 if piobus != None:
196 for cpu_seq in cpu_sequencers:
197 cpu_seq.pio_master_port = piobus.slave
198 cpu_seq.mem_master_port = piobus.slave
199
200 if buildEnv['TARGET_ISA'] == "x86":
201 cpu_seq.pio_slave_port = piobus.master
202
203 ruby.number_of_virtual_networks = ruby.network.number_of_virtual_networks
204 ruby._cpu_ports = cpu_sequencers
205 ruby.num_of_sequencers = len(cpu_sequencers)
206
207 # Create a backing copy of physical memory in case required
208 if options.access_backing_store:
209 ruby.access_backing_store = True
210 ruby.phys_mem = SimpleMemory(range=system.mem_ranges[0],
211 in_addr_map=False)
212
213def create_directories(options, bootmem, ruby_system, system):
214 dir_cntrl_nodes = []
215 for i in xrange(options.num_dirs):
216 dir_cntrl = Directory_Controller()
217 dir_cntrl.version = i
218 dir_cntrl.directory = RubyDirectoryMemory()
219 dir_cntrl.ruby_system = ruby_system
220
221 exec("ruby_system.dir_cntrl%d = dir_cntrl" % i)
222 dir_cntrl_nodes.append(dir_cntrl)
223
224 if bootmem is not None:
225 rom_dir_cntrl = Directory_Controller()
226 rom_dir_cntrl.directory = RubyDirectoryMemory()
227 rom_dir_cntrl.ruby_system = ruby_system
228 rom_dir_cntrl.version = i + 1
229 rom_dir_cntrl.memory = bootmem.port
230 rom_dir_cntrl.addr_ranges = bootmem.range
231 return (dir_cntrl_nodes, rom_dir_cntrl)
232
233 return (dir_cntrl_nodes, None)
234
235def send_evicts(options):
236 # currently, 2 scenarios warrant forwarding evictions to the CPU:
237 # 1. The O3 model must keep the LSQ coherent with the caches
238 # 2. The x86 mwait instruction is built on top of coherence invalidations
239 # 3. The local exclusive monitor in ARM systems
240 if options.cpu_type == "DerivO3CPU" or \
241 buildEnv['TARGET_ISA'] in ('x86', 'arm'):
242 return True
243 return False
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
42from __future__ import print_function
43
44import math
45import m5
46from m5.objects import *
47from m5.defines import buildEnv
48from m5.util import addToPath, fatal
49
50from common import MemConfig
51
52from topologies import *
53from network import Network
54
55def define_options(parser):
56 # By default, ruby uses the simple timing cpu
57 parser.set_defaults(cpu_type="TimingSimpleCPU")
58
59 parser.add_option("--ruby-clock", action="store", type="string",
60 default='2GHz',
61 help="Clock for blocks running at Ruby system's speed")
62
63 parser.add_option("--access-backing-store", action="store_true", default=False,
64 help="Should ruby maintain a second copy of memory")
65
66 # Options related to cache structure
67 parser.add_option("--ports", action="store", type="int", default=4,
68 help="used of transitions per cycle which is a proxy \
69 for the number of ports.")
70
71 # network options are in network/Network.py
72
73 # ruby mapping options
74 parser.add_option("--numa-high-bit", type="int", default=0,
75 help="high order address bit to use for numa mapping. " \
76 "0 = highest bit, not specified = lowest bit")
77
78 parser.add_option("--recycle-latency", type="int", default=10,
79 help="Recycle latency for ruby controller input buffers")
80
81 protocol = buildEnv['PROTOCOL']
82 exec "import %s" % protocol
83 eval("%s.define_options(parser)" % protocol)
84 Network.define_options(parser)
85
86def setup_memory_controllers(system, ruby, dir_cntrls, options):
87 ruby.block_size_bytes = options.cacheline_size
88 ruby.memory_size_bits = 48
89
90 index = 0
91 mem_ctrls = []
92 crossbars = []
93
94 if options.numa_high_bit:
95 dir_bits = int(math.log(options.num_dirs, 2))
96 intlv_size = 2 ** (options.numa_high_bit - dir_bits + 1)
97 else:
98 # if the numa_bit is not specified, set the directory bits as the
99 # lowest bits above the block offset bits
100 intlv_size = options.cacheline_size
101
102 # Sets bits to be used for interleaving. Creates memory controllers
103 # attached to a directory controller. A separate controller is created
104 # for each address range as the abstract memory can handle only one
105 # contiguous address range as of now.
106 for dir_cntrl in dir_cntrls:
107 crossbar = None
108 if len(system.mem_ranges) > 1:
109 crossbar = IOXBar()
110 crossbars.append(crossbar)
111 dir_cntrl.memory = crossbar.slave
112
113 dir_ranges = []
114 for r in system.mem_ranges:
115 mem_ctrl = MemConfig.create_mem_ctrl(
116 MemConfig.get(options.mem_type), r, index, options.num_dirs,
117 int(math.log(options.num_dirs, 2)), intlv_size)
118
119 if options.access_backing_store:
120 mem_ctrl.kvm_map=False
121
122 mem_ctrls.append(mem_ctrl)
123 dir_ranges.append(mem_ctrl.range)
124
125 if crossbar != None:
126 mem_ctrl.port = crossbar.master
127 else:
128 mem_ctrl.port = dir_cntrl.memory
129
130 index += 1
131 dir_cntrl.addr_ranges = dir_ranges
132
133 system.mem_ctrls = mem_ctrls
134
135 if len(crossbars) > 0:
136 ruby.crossbars = crossbars
137
138
139def create_topology(controllers, options):
140 """ Called from create_system in configs/ruby/<protocol>.py
141 Must return an object which is a subclass of BaseTopology
142 found in configs/topologies/BaseTopology.py
143 This is a wrapper for the legacy topologies.
144 """
145 exec "import topologies.%s as Topo" % options.topology
146 topology = eval("Topo.%s(controllers)" % options.topology)
147 return topology
148
149def create_system(options, full_system, system, piobus = None, dma_ports = [],
150 bootmem=None):
151
152 system.ruby = RubySystem()
153 ruby = system.ruby
154
155 # Create the network object
156 (network, IntLinkClass, ExtLinkClass, RouterClass, InterfaceClass) = \
157 Network.create_network(options, ruby)
158 ruby.network = network
159
160 protocol = buildEnv['PROTOCOL']
161 exec "import %s" % protocol
162 try:
163 (cpu_sequencers, dir_cntrls, topology) = \
164 eval("%s.create_system(options, full_system, system, dma_ports,\
165 bootmem, ruby)"
166 % protocol)
167 except:
168 print("Error: could not create sytem for ruby protocol %s" % protocol)
169 raise
170
171 # Create the network topology
172 topology.makeTopology(options, network, IntLinkClass, ExtLinkClass,
173 RouterClass)
174
175 # Initialize network based on topology
176 Network.init_network(options, network, InterfaceClass)
177
178 # Create a port proxy for connecting the system port. This is
179 # independent of the protocol and kept in the protocol-agnostic
180 # part (i.e. here).
181 sys_port_proxy = RubyPortProxy(ruby_system = ruby)
182 if piobus is not None:
183 sys_port_proxy.pio_master_port = piobus.slave
184
185 # Give the system port proxy a SimObject parent without creating a
186 # full-fledged controller
187 system.sys_port_proxy = sys_port_proxy
188
189 # Connect the system port for loading of binaries etc
190 system.system_port = system.sys_port_proxy.slave
191
192 setup_memory_controllers(system, ruby, dir_cntrls, options)
193
194 # Connect the cpu sequencers and the piobus
195 if piobus != None:
196 for cpu_seq in cpu_sequencers:
197 cpu_seq.pio_master_port = piobus.slave
198 cpu_seq.mem_master_port = piobus.slave
199
200 if buildEnv['TARGET_ISA'] == "x86":
201 cpu_seq.pio_slave_port = piobus.master
202
203 ruby.number_of_virtual_networks = ruby.network.number_of_virtual_networks
204 ruby._cpu_ports = cpu_sequencers
205 ruby.num_of_sequencers = len(cpu_sequencers)
206
207 # Create a backing copy of physical memory in case required
208 if options.access_backing_store:
209 ruby.access_backing_store = True
210 ruby.phys_mem = SimpleMemory(range=system.mem_ranges[0],
211 in_addr_map=False)
212
213def create_directories(options, bootmem, ruby_system, system):
214 dir_cntrl_nodes = []
215 for i in xrange(options.num_dirs):
216 dir_cntrl = Directory_Controller()
217 dir_cntrl.version = i
218 dir_cntrl.directory = RubyDirectoryMemory()
219 dir_cntrl.ruby_system = ruby_system
220
221 exec("ruby_system.dir_cntrl%d = dir_cntrl" % i)
222 dir_cntrl_nodes.append(dir_cntrl)
223
224 if bootmem is not None:
225 rom_dir_cntrl = Directory_Controller()
226 rom_dir_cntrl.directory = RubyDirectoryMemory()
227 rom_dir_cntrl.ruby_system = ruby_system
228 rom_dir_cntrl.version = i + 1
229 rom_dir_cntrl.memory = bootmem.port
230 rom_dir_cntrl.addr_ranges = bootmem.range
231 return (dir_cntrl_nodes, rom_dir_cntrl)
232
233 return (dir_cntrl_nodes, None)
234
235def send_evicts(options):
236 # currently, 2 scenarios warrant forwarding evictions to the CPU:
237 # 1. The O3 model must keep the LSQ coherent with the caches
238 # 2. The x86 mwait instruction is built on top of coherence invalidations
239 # 3. The local exclusive monitor in ARM systems
240 if options.cpu_type == "DerivO3CPU" or \
241 buildEnv['TARGET_ISA'] in ('x86', 'arm'):
242 return True
243 return False