1# Copyright (c) 2016-2017 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# Redistribution and use in source and binary forms, with or without
14# modification, are permitted provided that the following conditions are
15# met: redistributions of source code must retain the above copyright
16# notice, this list of conditions and the following disclaimer;
17# redistributions in binary form must reproduce the above copyright
18# notice, this list of conditions and the following disclaimer in the
19# documentation and/or other materials provided with the distribution;
20# neither the name of the copyright holders nor the names of its
21# contributors may be used to endorse or promote products derived from
22# this software without specific prior written permission.
23#
24# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35#
36# Authors: Andreas Sandberg
37# Chuan Zhu
38# Gabor Dozsa
39#
40
41"""This script is the full system example script from the ARM
42Research Starter Kit on System Modeling. More information can be found
43at: http://www.arm.com/ResearchEnablement/SystemModeling
44"""
45
46import os
47import m5
48from m5.util import addToPath
49from m5.objects import *
50import argparse
51
52m5.util.addToPath('../..')
53
54from common import SysPaths
55from common import MemConfig
56from common.cores.arm import HPI
57
58import devices
59
60
61default_dist_version = '20170616'
62default_kernel = 'vmlinux.vexpress_gem5_v1_64.' + default_dist_version
63default_disk = 'linaro-minimal-aarch64.img'
64
65
66# Pre-defined CPU configurations. Each tuple must be ordered as : (cpu_class,
67# l1_icache_class, l1_dcache_class, walk_cache_class, l2_Cache_class). Any of
68# the cache class may be 'None' if the particular cache is not present.
69cpu_types = {
70
71 "atomic" : ( AtomicSimpleCPU, None, None, None, None),
72 "minor" : (MinorCPU,
73 devices.L1I, devices.L1D,
74 devices.WalkCache,
75 devices.L2),
76 "hpi" : ( HPI.HPI,
77 HPI.HPI_ICache, HPI.HPI_DCache,
78 HPI.HPI_WalkCache,
79 HPI.HPI_L2)
80}
81
82def create_cow_image(name):
83 """Helper function to create a Copy-on-Write disk image"""
84 image = CowDiskImage()
85 image.child.image_file = SysPaths.disk(name)
86
87 return image;
88
89
90def create(args):
91 ''' Create and configure the system object. '''
92
93 if not args.dtb:
94 dtb_file = SysPaths.binary("armv8_gem5_v1_%icpu.%s.dtb" %
95 (args.num_cores, default_dist_version))
96 else:
97 dtb_file = args.dtb
98
99 if args.script and not os.path.isfile(args.script):
100 print "Error: Bootscript %s does not exist" % args.script
101 sys.exit(1)
102
103 cpu_class = cpu_types[args.cpu][0]
104 mem_mode = cpu_class.memory_mode()
105 # Only simulate caches when using a timing CPU (e.g., the HPI model)
106 want_caches = True if mem_mode == "timing" else False
107
108 system = devices.SimpleSystem(want_caches,
109 args.mem_size,
110 mem_mode=mem_mode,
111 dtb_filename=dtb_file,
112 kernel=SysPaths.binary(args.kernel),
| 1# Copyright (c) 2016-2017 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# Redistribution and use in source and binary forms, with or without
14# modification, are permitted provided that the following conditions are
15# met: redistributions of source code must retain the above copyright
16# notice, this list of conditions and the following disclaimer;
17# redistributions in binary form must reproduce the above copyright
18# notice, this list of conditions and the following disclaimer in the
19# documentation and/or other materials provided with the distribution;
20# neither the name of the copyright holders nor the names of its
21# contributors may be used to endorse or promote products derived from
22# this software without specific prior written permission.
23#
24# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35#
36# Authors: Andreas Sandberg
37# Chuan Zhu
38# Gabor Dozsa
39#
40
41"""This script is the full system example script from the ARM
42Research Starter Kit on System Modeling. More information can be found
43at: http://www.arm.com/ResearchEnablement/SystemModeling
44"""
45
46import os
47import m5
48from m5.util import addToPath
49from m5.objects import *
50import argparse
51
52m5.util.addToPath('../..')
53
54from common import SysPaths
55from common import MemConfig
56from common.cores.arm import HPI
57
58import devices
59
60
61default_dist_version = '20170616'
62default_kernel = 'vmlinux.vexpress_gem5_v1_64.' + default_dist_version
63default_disk = 'linaro-minimal-aarch64.img'
64
65
66# Pre-defined CPU configurations. Each tuple must be ordered as : (cpu_class,
67# l1_icache_class, l1_dcache_class, walk_cache_class, l2_Cache_class). Any of
68# the cache class may be 'None' if the particular cache is not present.
69cpu_types = {
70
71 "atomic" : ( AtomicSimpleCPU, None, None, None, None),
72 "minor" : (MinorCPU,
73 devices.L1I, devices.L1D,
74 devices.WalkCache,
75 devices.L2),
76 "hpi" : ( HPI.HPI,
77 HPI.HPI_ICache, HPI.HPI_DCache,
78 HPI.HPI_WalkCache,
79 HPI.HPI_L2)
80}
81
82def create_cow_image(name):
83 """Helper function to create a Copy-on-Write disk image"""
84 image = CowDiskImage()
85 image.child.image_file = SysPaths.disk(name)
86
87 return image;
88
89
90def create(args):
91 ''' Create and configure the system object. '''
92
93 if not args.dtb:
94 dtb_file = SysPaths.binary("armv8_gem5_v1_%icpu.%s.dtb" %
95 (args.num_cores, default_dist_version))
96 else:
97 dtb_file = args.dtb
98
99 if args.script and not os.path.isfile(args.script):
100 print "Error: Bootscript %s does not exist" % args.script
101 sys.exit(1)
102
103 cpu_class = cpu_types[args.cpu][0]
104 mem_mode = cpu_class.memory_mode()
105 # Only simulate caches when using a timing CPU (e.g., the HPI model)
106 want_caches = True if mem_mode == "timing" else False
107
108 system = devices.SimpleSystem(want_caches,
109 args.mem_size,
110 mem_mode=mem_mode,
111 dtb_filename=dtb_file,
112 kernel=SysPaths.binary(args.kernel),
|
115
116 MemConfig.config_mem(args, system)
117
118 # Add the PCI devices we need for this system. The base system
119 # doesn't have any PCI devices by default since they are assumed
120 # to be added by the configurastion scripts needin them.
121 system.pci_devices = [
122 # Create a VirtIO block device for the system's boot
123 # disk. Attach the disk image using gem5's Copy-on-Write
124 # functionality to avoid writing changes to the stored copy of
125 # the disk image.
126 PciVirtIO(vio=VirtIOBlock(image=create_cow_image(args.disk_image))),
127 ]
128
129 # Attach the PCI devices to the system. The helper method in the
130 # system assigns a unique PCI bus ID to each of the devices and
131 # connects them to the IO bus.
132 for dev in system.pci_devices:
133 system.attach_pci(dev)
134
135 # Wire up the system's memory system
136 system.connect()
137
138 # Add CPU clusters to the system
139 system.cpu_cluster = [
140 devices.CpuCluster(system,
141 args.num_cores,
142 args.cpu_freq, "1.0V",
143 *cpu_types[args.cpu]),
144 ]
145
146 # Create a cache hierarchy for the cluster. We are assuming that
147 # clusters have core-private L1 caches and an L2 that's shared
148 # within the cluster.
149 for cluster in system.cpu_cluster:
150 system.addCaches(want_caches, last_cache_level=2)
151
152 # Setup gem5's minimal Linux boot loader.
153 system.realview.setupBootLoader(system.membus, system, SysPaths.binary)
154
155 # Linux boot command flags
156 kernel_cmd = [
157 # Tell Linux to use the simulated serial port as a console
158 "console=ttyAMA0",
159 # Hard-code timi
160 "lpj=19988480",
161 # Disable address space randomisation to get a consistent
162 # memory layout.
163 "norandmaps",
164 # Tell Linux where to find the root disk image.
165 "root=/dev/vda1",
166 # Mount the root disk read-write by default.
167 "rw",
168 # Tell Linux about the amount of physical memory present.
169 "mem=%s" % args.mem_size,
170 ]
171 system.boot_osflags = " ".join(kernel_cmd)
172
173 return system
174
175
176def run(args):
177 cptdir = m5.options.outdir
178 if args.checkpoint:
179 print "Checkpoint directory: %s" % cptdir
180
181 while True:
182 event = m5.simulate()
183 exit_msg = event.getCause()
184 if exit_msg == "checkpoint":
185 print "Dropping checkpoint at tick %d" % m5.curTick()
186 cpt_dir = os.path.join(m5.options.outdir, "cpt.%d" % m5.curTick())
187 m5.checkpoint(os.path.join(cpt_dir))
188 print "Checkpoint done."
189 else:
190 print exit_msg, " @ ", m5.curTick()
191 break
192
193 sys.exit(event.getCode())
194
195
196def main():
197 parser = argparse.ArgumentParser(epilog=__doc__)
198
199 parser.add_argument("--dtb", type=str, default=None,
200 help="DTB file to load")
201 parser.add_argument("--kernel", type=str, default=default_kernel,
202 help="Linux kernel")
203 parser.add_argument("--disk-image", type=str,
204 default=default_disk,
205 help="Disk to instantiate")
206 parser.add_argument("--script", type=str, default="",
207 help = "Linux bootscript")
208 parser.add_argument("--cpu", type=str, choices=cpu_types.keys(),
209 default="atomic",
210 help="CPU model to use")
211 parser.add_argument("--cpu-freq", type=str, default="4GHz")
212 parser.add_argument("--num-cores", type=int, default=1,
213 help="Number of CPU cores")
214 parser.add_argument("--mem-type", default="DDR3_1600_8x8",
215 choices=MemConfig.mem_names(),
216 help = "type of memory to use")
217 parser.add_argument("--mem-channels", type=int, default=1,
218 help = "number of memory channels")
219 parser.add_argument("--mem-ranks", type=int, default=None,
220 help = "number of memory ranks per channel")
221 parser.add_argument("--mem-size", action="store", type=str,
222 default="2GB",
223 help="Specify the physical memory size")
224 parser.add_argument("--checkpoint", action="store_true")
225 parser.add_argument("--restore", type=str, default=None)
226
227
228 args = parser.parse_args()
229
230 root = Root(full_system=True)
231 root.system = create(args)
232
233 if args.restore is not None:
234 m5.instantiate(args.restore)
235 else:
236 m5.instantiate()
237
238 run(args)
239
240
241if __name__ == "__m5_main__":
242 main()
| 114
115 MemConfig.config_mem(args, system)
116
117 # Add the PCI devices we need for this system. The base system
118 # doesn't have any PCI devices by default since they are assumed
119 # to be added by the configurastion scripts needin them.
120 system.pci_devices = [
121 # Create a VirtIO block device for the system's boot
122 # disk. Attach the disk image using gem5's Copy-on-Write
123 # functionality to avoid writing changes to the stored copy of
124 # the disk image.
125 PciVirtIO(vio=VirtIOBlock(image=create_cow_image(args.disk_image))),
126 ]
127
128 # Attach the PCI devices to the system. The helper method in the
129 # system assigns a unique PCI bus ID to each of the devices and
130 # connects them to the IO bus.
131 for dev in system.pci_devices:
132 system.attach_pci(dev)
133
134 # Wire up the system's memory system
135 system.connect()
136
137 # Add CPU clusters to the system
138 system.cpu_cluster = [
139 devices.CpuCluster(system,
140 args.num_cores,
141 args.cpu_freq, "1.0V",
142 *cpu_types[args.cpu]),
143 ]
144
145 # Create a cache hierarchy for the cluster. We are assuming that
146 # clusters have core-private L1 caches and an L2 that's shared
147 # within the cluster.
148 for cluster in system.cpu_cluster:
149 system.addCaches(want_caches, last_cache_level=2)
150
151 # Setup gem5's minimal Linux boot loader.
152 system.realview.setupBootLoader(system.membus, system, SysPaths.binary)
153
154 # Linux boot command flags
155 kernel_cmd = [
156 # Tell Linux to use the simulated serial port as a console
157 "console=ttyAMA0",
158 # Hard-code timi
159 "lpj=19988480",
160 # Disable address space randomisation to get a consistent
161 # memory layout.
162 "norandmaps",
163 # Tell Linux where to find the root disk image.
164 "root=/dev/vda1",
165 # Mount the root disk read-write by default.
166 "rw",
167 # Tell Linux about the amount of physical memory present.
168 "mem=%s" % args.mem_size,
169 ]
170 system.boot_osflags = " ".join(kernel_cmd)
171
172 return system
173
174
175def run(args):
176 cptdir = m5.options.outdir
177 if args.checkpoint:
178 print "Checkpoint directory: %s" % cptdir
179
180 while True:
181 event = m5.simulate()
182 exit_msg = event.getCause()
183 if exit_msg == "checkpoint":
184 print "Dropping checkpoint at tick %d" % m5.curTick()
185 cpt_dir = os.path.join(m5.options.outdir, "cpt.%d" % m5.curTick())
186 m5.checkpoint(os.path.join(cpt_dir))
187 print "Checkpoint done."
188 else:
189 print exit_msg, " @ ", m5.curTick()
190 break
191
192 sys.exit(event.getCode())
193
194
195def main():
196 parser = argparse.ArgumentParser(epilog=__doc__)
197
198 parser.add_argument("--dtb", type=str, default=None,
199 help="DTB file to load")
200 parser.add_argument("--kernel", type=str, default=default_kernel,
201 help="Linux kernel")
202 parser.add_argument("--disk-image", type=str,
203 default=default_disk,
204 help="Disk to instantiate")
205 parser.add_argument("--script", type=str, default="",
206 help = "Linux bootscript")
207 parser.add_argument("--cpu", type=str, choices=cpu_types.keys(),
208 default="atomic",
209 help="CPU model to use")
210 parser.add_argument("--cpu-freq", type=str, default="4GHz")
211 parser.add_argument("--num-cores", type=int, default=1,
212 help="Number of CPU cores")
213 parser.add_argument("--mem-type", default="DDR3_1600_8x8",
214 choices=MemConfig.mem_names(),
215 help = "type of memory to use")
216 parser.add_argument("--mem-channels", type=int, default=1,
217 help = "number of memory channels")
218 parser.add_argument("--mem-ranks", type=int, default=None,
219 help = "number of memory ranks per channel")
220 parser.add_argument("--mem-size", action="store", type=str,
221 default="2GB",
222 help="Specify the physical memory size")
223 parser.add_argument("--checkpoint", action="store_true")
224 parser.add_argument("--restore", type=str, default=None)
225
226
227 args = parser.parse_args()
228
229 root = Root(full_system=True)
230 root.system = create(args)
231
232 if args.restore is not None:
233 m5.instantiate(args.restore)
234 else:
235 m5.instantiate()
236
237 run(args)
238
239
240if __name__ == "__m5_main__":
241 main()
|