Hello Giacomo Travaglini,
I'd like you to do a code review. Please visit
https://gem5-review.googlesource.com/c/public/gem5/+/13599
to review the following change.
Change subject: config: Add ruby_fs.py for running Ruby FullSystem
......................................................................
config: Add ruby_fs.py for running Ruby FullSystem
Add an example Arm script similar to example_fs which uses ruby.
Change-Id: Ie8b0ea1151cb8933c384fd766b592ddb16dd1612
Signed-off-by: Giacomo Travaglini <[email protected]>
Signed-off-by: Nikos Nikoleris <[email protected]>
---
A configs/example/arm/ruby_fs.py
1 file changed, 283 insertions(+), 0 deletions(-)
diff --git a/configs/example/arm/ruby_fs.py b/configs/example/arm/ruby_fs.py
new file mode 100644
index 0000000..228e64a
--- /dev/null
+++ b/configs/example/arm/ruby_fs.py
@@ -0,0 +1,283 @@
+# Copyright (c) 2018 ARM Limited
+# All rights reserved.
+#
+# The license below extends only to copyright in the software and shall
+# not be construed as granting a license to any other intellectual
+# property including but not limited to intellectual property relating
+# to a hardware implementation of the functionality of the software
+# licensed hereunder. You may use the software subject to the license
+# terms below provided that you ensure that this notice is replicated
+# unmodified and in its entirety in all distributions of the software,
+# modified or unmodified, in source code or in binary form.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution;
+# neither the name of the copyright holders nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Authors: Timothy Hayes
+# Giacomo Travaglini
+# Nikos Nikoleris
+
+from __future__ import print_function
+
+import argparse
+import os
+import m5
+from m5.util import addToPath
+from m5.objects import *
+
+m5.util.addToPath('../..')
+
+from common import SysPaths
+from common import MemConfig
+from common.cores.arm import HPI
+from ruby import Ruby
+
+import devices
+
+
+default_dist_version = '20170616'
+default_kernel = 'vmlinux.vexpress_gem5_v1_64.' + default_dist_version
+default_disk = 'linaro-minimal-aarch64.img'
+
+cpu_types = {
+ "timing" : TimingSimpleCPU,
+ "ooo" : DerivO3CPU,
+ "minor" : MinorCPU,
+ "hpi" : HPI.HPI,
+}
+
+class L1I(object):
+ l1i_size = '48kB'
+ l1i_assoc = 3
+
+class L1D(object):
+ l1d_size = '32kB'
+ l1d_assoc = 2
+
+class L2Cache(object):
+ num_l2caches = 1
+ l2_size = '1MB'
+ l2_assoc = 16
+
+class Interconnect(object):
+ topology = 'Crossbar'
+ network = 'simple'
+ link_latency = 1
+ router_latency = 1
+ network_fault_model = False
+
+class RubyOptions(L1I, L1D, L2Cache, Interconnect):
+ ruby = True
+ caches = True
+ cacheline_size = 64
+ num_dirs = 1
+ ports = 4
+ numa_high_bit = 0
+ access_backing_store = False
+ ruby_clock = '2GHz'
+ allow_atomic_migration = False
+ recycle_latency = 10
+ pf_on = False
+ dir_on = False
+ l1_retries = 1
+ timeout_latency = 300
+ disable_dyn_timeouts = False
+
+ def __init__(self, num_cpus, cpu_type, mem_size, mem_type):
+ self.cpu_type = cpu_type
+ self.num_cpus = num_cpus
+ self.mem_size = mem_size
+ self.mem_type = mem_type
+
+def config_ruby(system, args):
+ ruby_options = RubyOptions(args.num_cores, str(cpu_types[args.cpu]),
+ args.mem_size, args.mem_type)
+ Ruby.create_system(ruby_options, True, system, system.iobus,
+ system._dma_ports, system.bootmem,
system.cpu_cluster)
+
+ system.ruby.clk_domain = SrcClockDomain(
+ clock = ruby_options.ruby_clock,
+ voltage_domain=system.voltage_domain)
+
+ system.iobus.master = system.ruby._io_port.slave
+ assert(args.num_cores == len(system.ruby._cpu_ports))
+
+def create_cow_image(name):
+ """Helper function to create a Copy-on-Write disk image"""
+ image = CowDiskImage()
+ image.child.image_file = SysPaths.disk(name)
+
+ return image;
+
+def create(args):
+ ''' Create and configure the system object. '''
+
+ if not args.dtb:
+ dtb_file = SysPaths.binary("armv8_gem5_v1_%icpu.%s.dtb" %
+ (args.num_cores, default_dist_version))
+ else:
+ dtb_file = args.dtb
+
+ if args.script and not os.path.isfile(args.script):
+ print("Error: Bootscript %s does not exist" % args.script)
+ sys.exit(1)
+
+ cpu_class = cpu_types[args.cpu]
+
+ # Check for timing mode because ruby does not support atomic accesses
+ if cpu_class.memory_mode == 'timing':
+ print("Ruby requires a timing CPU")
+ sys.exit(1)
+
+ system = devices.ArmRubySystem(mem_size=args.mem_size,
+ dtb_filename=dtb_file,
+ kernel=SysPaths.binary(args.kernel),
+ readfile=args.script)
+
+ # Add the PCI devices we need for this system. The base system
+ # doesn't have any PCI devices by default since they are assumed
+ # to be added by the configurastion scripts needin them.
+ system.pci_devices = [
+ # Create a VirtIO block device for the system's boot
+ # disk. Attach the disk image using gem5's Copy-on-Write
+ # functionality to avoid writing changes to the stored copy of
+ # the disk image.
+
PciVirtIO(vio=VirtIOBlock(image=create_cow_image(args.disk_image))),
+ ]
+
+ # Attach the PCI devices to the system. The helper method in the
+ # system assigns a unique PCI bus ID to each of the devices and
+ # connects them to the IO bus.
+ for dev in system.pci_devices:
+ system.attach_pci(dev)
+
+ # Wire up the system's memory system
+ system.connect()
+
+ # Add CPU clusters to the system
+ system.cpu_cluster = [
+ devices.CpuCluster(system,
+ args.num_cores,
+ args.cpu_freq, "1.0V",
+ cpu_types[args.cpu], None, None, None, None),
+ ]
+
+ system.mem_mode = cpu_class.memory_mode()
+
+ # Setup gem5's minimal Linux boot loader.
+ system.realview.setupBootLoader(None, system, SysPaths.binary)
+
+ # Create and configure Ruby
+ config_ruby(system, args)
+
+ # Wire up the system's memory system
+ system.connectRubySide()
+
+ # Linux boot command flags
+ kernel_cmd = [
+ # Tell Linux to use the simulated serial port as a console
+ "console=ttyAMA0",
+ # Hard-code timi
+ "lpj=19988480",
+ # Disable address space randomisation to get a consistent
+ # memory layout.
+ "norandmaps",
+ # Tell Linux where to find the root disk image.
+ "root=/dev/vda1",
+ # Mount the root disk read-write by default.
+ "rw",
+ # Tell Linux about the amount of physical memory present.
+ "mem=%s" % args.mem_size,
+ ]
+ system.boot_osflags = " ".join(kernel_cmd)
+
+ return system
+
+
+def run(args):
+ cptdir = m5.options.outdir
+ if args.checkpoint:
+ print("Checkpoint directory: %s" % cptdir)
+
+ while True:
+ event = m5.simulate()
+ exit_msg = event.getCause()
+ if exit_msg == "checkpoint":
+ print("Dropping checkpoint at tick %d" % m5.curTick())
+ cpt_dir = os.path.join(m5.options.outdir, "cpt.%d" %
m5.curTick())
+ m5.checkpoint(os.path.join(cpt_dir))
+ print("Checkpoint done.")
+ else:
+ print(exit_msg, " @ ", m5.curTick())
+ break
+
+ sys.exit(event.getCode())
+
+
+def main():
+ parser = argparse.ArgumentParser(epilog=__doc__)
+
+ parser.add_argument("--dtb", type=str, default=None,
+ help="DTB file to load")
+ parser.add_argument("--kernel", type=str, default=default_kernel,
+ help="Linux kernel")
+ parser.add_argument("--disk-image", type=str,
+ default=default_disk,
+ help="Disk to instantiate")
+ parser.add_argument("--script", type=str, default="",
+ help = "Linux bootscript")
+ parser.add_argument("--cpu", type=str, choices=cpu_types.keys(),
+ default="timing",
+ help="CPU model to use")
+ parser.add_argument("--cpu-freq", type=str, default="4GHz")
+ parser.add_argument("--num-cores", type=int, default=1,
+ help="Number of CPU cores")
+ parser.add_argument("--mem-type", default="DDR3_1600_8x8",
+ choices=MemConfig.mem_names(),
+ help = "type of memory to use")
+ parser.add_argument("--mem-channels", type=int, default=1,
+ help = "number of memory channels")
+ parser.add_argument("--mem-ranks", type=int, default=None,
+ help = "number of memory ranks per channel")
+ parser.add_argument("--mem-size", action="store", type=str,
+ default="2GB",
+ help="Specify the physical memory size")
+ parser.add_argument("--checkpoint", action="store_true")
+ parser.add_argument("--restore", type=str, default=None)
+
+
+ args = parser.parse_args()
+
+ root = Root(full_system=True)
+ root.system = create(args)
+
+ if args.restore is not None:
+ m5.instantiate(args.restore)
+ else:
+ m5.instantiate()
+
+ run(args)
+
+
+if __name__ == "__m5_main__":
+ main()
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: Ie8b0ea1151cb8933c384fd766b592ddb16dd1612
Gerrit-Change-Number: 13599
Gerrit-PatchSet: 1
Gerrit-Owner: Nikos Nikoleris <[email protected]>
Gerrit-Reviewer: Giacomo Travaglini <[email protected]>
Gerrit-MessageType: newchange
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