gem5/configs/ruby/Ruby.py

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# Copyright (c) 2012 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.
#
# Copyright (c) 2006-2007 The Regents of The University of Michigan
# Copyright (c) 2009 Advanced Micro Devices, Inc.
# All rights reserved.
#
# 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: Brad Beckmann
import math
import m5
from m5.objects import *
from m5.defines import buildEnv
def define_options(parser):
# By default, ruby uses the simple timing cpu
parser.set_defaults(cpu_type="timing")
# ruby network options
parser.add_option("--topology", type="string", default="Crossbar",
help="check src/mem/ruby/network/topologies for complete set")
parser.add_option("--mesh-rows", type="int", default=1,
help="the number of rows in the mesh topology")
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parser.add_option("--garnet-network", type="string", default=None,
help="'fixed'|'flexible'")
parser.add_option("--network-fault-model", action="store_true", default=False,
help="enable network fault model: see src/mem/ruby/network/fault_model/")
# ruby mapping options
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parser.add_option("--numa-high-bit", type="int", default=0,
help="high order address bit to use for numa mapping. " \
"0 = highest bit, not specified = lowest bit")
# ruby sparse memory options
parser.add_option("--use-map", action="store_true", default=False)
parser.add_option("--map-levels", type="int", default=4)
parser.add_option("--recycle-latency", type="int", default=10,
help="Recycle latency for ruby controller input buffers")
parser.add_option("--random_seed", type="int", default=1234,
help="Used for seeding the random number generator")
parser.add_option("--ruby_stats", type="string", default="ruby.stats")
protocol = buildEnv['PROTOCOL']
exec "import %s" % protocol
eval("%s.define_options(parser)" % protocol)
def create_topology(controllers, options):
""" Called from create_system in configs/ruby/<protocol>.py
Must return an object which is a subclass of BaseTopology
found in configs/topologies/BaseTopology.py
This is a wrapper for the legacy topologies.
"""
exec "import %s as Topo" % options.topology
topology = eval("Topo.%s(controllers)" % options.topology)
return topology
def create_system(options, system, piobus = None, dma_ports = []):
system.ruby = RubySystem(clock = options.clock,
stats_filename = options.ruby_stats,
no_mem_vec = options.use_map)
ruby = system.ruby
protocol = buildEnv['PROTOCOL']
exec "import %s" % protocol
try:
(cpu_sequencers, dir_cntrls, topology) = \
eval("%s.create_system(options, system, piobus, dma_ports, ruby)"
% protocol)
except:
print "Error: could not create sytem for ruby protocol %s" % protocol
raise
network: convert links & switches to first class C++ SimObjects This patch converts links and switches from second class simobjects that were virtually ignored by the networks (both simple and Garnet) to first class simobjects that directly correspond to c++ ojbects manipulated by the topology and network classes. This is especially true for Garnet, where the links and switches directly correspond to specific C++ objects. By making this change, many aspects of the Topology class were simplified. --HG-- rename : src/mem/ruby/network/Network.cc => src/mem/ruby/network/BasicLink.cc rename : src/mem/ruby/network/Network.hh => src/mem/ruby/network/BasicLink.hh rename : src/mem/ruby/network/Network.cc => src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.cc rename : src/mem/ruby/network/Network.hh => src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.hh rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.py rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/fixed-pipeline/GarnetRouter_d.py rename : src/mem/ruby/network/Network.cc => src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.cc rename : src/mem/ruby/network/Network.hh => src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.hh rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.py rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/flexible-pipeline/GarnetRouter.py
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# Create a port proxy for connecting the system port. This is
# independent of the protocol and kept in the protocol-agnostic
# part (i.e. here).
sys_port_proxy = RubyPortProxy(ruby_system = ruby)
# Give the system port proxy a SimObject parent without creating a
# full-fledged controller
system.sys_port_proxy = sys_port_proxy
# Connect the system port for loading of binaries etc
system.system_port = system.sys_port_proxy.slave
network: convert links & switches to first class C++ SimObjects This patch converts links and switches from second class simobjects that were virtually ignored by the networks (both simple and Garnet) to first class simobjects that directly correspond to c++ ojbects manipulated by the topology and network classes. This is especially true for Garnet, where the links and switches directly correspond to specific C++ objects. By making this change, many aspects of the Topology class were simplified. --HG-- rename : src/mem/ruby/network/Network.cc => src/mem/ruby/network/BasicLink.cc rename : src/mem/ruby/network/Network.hh => src/mem/ruby/network/BasicLink.hh rename : src/mem/ruby/network/Network.cc => src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.cc rename : src/mem/ruby/network/Network.hh => src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.hh rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.py rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/fixed-pipeline/GarnetRouter_d.py rename : src/mem/ruby/network/Network.cc => src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.cc rename : src/mem/ruby/network/Network.hh => src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.hh rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.py rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/flexible-pipeline/GarnetRouter.py
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#
# Set the network classes based on the command line options
#
if options.garnet_network == "fixed":
class NetworkClass(GarnetNetwork_d): pass
class IntLinkClass(GarnetIntLink_d): pass
class ExtLinkClass(GarnetExtLink_d): pass
class RouterClass(GarnetRouter_d): pass
elif options.garnet_network == "flexible":
class NetworkClass(GarnetNetwork): pass
class IntLinkClass(GarnetIntLink): pass
class ExtLinkClass(GarnetExtLink): pass
class RouterClass(GarnetRouter): pass
else:
class NetworkClass(SimpleNetwork): pass
class IntLinkClass(SimpleIntLink): pass
class ExtLinkClass(SimpleExtLink): pass
class RouterClass(Switch): pass
#
# Important: the topology must be instantiated before the network and after
# the controllers. Hence the separation between topology definition and
# instantiation.
#
# gem5 SimObject defined in src/mem/ruby/network/Network.py
net_topology = Topology()
net_topology.description = topology.description
routers, int_links, ext_links = topology.makeTopology(options,
IntLinkClass, ExtLinkClass, RouterClass)
net_topology.routers = routers
net_topology.int_links = int_links
net_topology.ext_links = ext_links
network: convert links & switches to first class C++ SimObjects This patch converts links and switches from second class simobjects that were virtually ignored by the networks (both simple and Garnet) to first class simobjects that directly correspond to c++ ojbects manipulated by the topology and network classes. This is especially true for Garnet, where the links and switches directly correspond to specific C++ objects. By making this change, many aspects of the Topology class were simplified. --HG-- rename : src/mem/ruby/network/Network.cc => src/mem/ruby/network/BasicLink.cc rename : src/mem/ruby/network/Network.hh => src/mem/ruby/network/BasicLink.hh rename : src/mem/ruby/network/Network.cc => src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.cc rename : src/mem/ruby/network/Network.hh => src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.hh rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.py rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/fixed-pipeline/GarnetRouter_d.py rename : src/mem/ruby/network/Network.cc => src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.cc rename : src/mem/ruby/network/Network.hh => src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.hh rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.py rename : src/mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.py => src/mem/ruby/network/garnet/flexible-pipeline/GarnetRouter.py
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if options.network_fault_model:
assert(options.garnet_network == "fixed")
fault_model = FaultModel()
network = NetworkClass(ruby_system = ruby, topology = net_topology,\
enable_fault_model=True, fault_model = fault_model)
else:
network = NetworkClass(ruby_system = ruby, topology = net_topology)
#
# Loop through the directory controlers.
# Determine the total memory size of the ruby system and verify it is equal
# to physmem. However, if Ruby memory is using sparse memory in SE
# mode, then the system should not back-up the memory state with
# the Memory Vector and thus the memory size bytes should stay at 0.
# Also set the numa bits to the appropriate values.
#
total_mem_size = MemorySize('0B')
dir_bits = int(math.log(options.num_dirs, 2))
if options.numa_high_bit:
numa_bit = options.numa_high_bit
else:
# if not specified, use the lowest bits above the block offest
if dir_bits > 0:
# add 5 because bits 0-5 are the block offset
numa_bit = dir_bits + 5
else:
numa_bit = 6
for dir_cntrl in dir_cntrls:
total_mem_size.value += dir_cntrl.directory.size.value
dir_cntrl.directory.numa_high_bit = numa_bit
phys_mem_size = sum(map(lambda mem: mem.range.size(),
system.memories.unproxy(system)))
MEM: Enable multiple distributed generalized memories This patch removes the assumption on having on single instance of PhysicalMemory, and enables a distributed memory where the individual memories in the system are each responsible for a single contiguous address range. All memories inherit from an AbstractMemory that encompasses the basic behaviuor of a random access memory, and provides untimed access methods. What was previously called PhysicalMemory is now SimpleMemory, and a subclass of AbstractMemory. All future types of memory controllers should inherit from AbstractMemory. To enable e.g. the atomic CPU and RubyPort to access the now distributed memory, the system has a wrapper class, called PhysicalMemory that is aware of all the memories in the system and their associated address ranges. This class thus acts as an infinitely-fast bus and performs address decoding for these "shortcut" accesses. Each memory can specify that it should not be part of the global address map (used e.g. by the functional memories by some testers). Moreover, each memory can be configured to be reported to the OS configuration table, useful for populating ATAG structures, and any potential ACPI tables. Checkpointing support currently assumes that all memories have the same size and organisation when creating and resuming from the checkpoint. A future patch will enable a more flexible re-organisation. --HG-- rename : src/mem/PhysicalMemory.py => src/mem/AbstractMemory.py rename : src/mem/PhysicalMemory.py => src/mem/SimpleMemory.py rename : src/mem/physical.cc => src/mem/abstract_mem.cc rename : src/mem/physical.hh => src/mem/abstract_mem.hh rename : src/mem/physical.cc => src/mem/simple_mem.cc rename : src/mem/physical.hh => src/mem/simple_mem.hh
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assert(total_mem_size.value == phys_mem_size)
ruby_profiler = RubyProfiler(ruby_system = ruby,
num_of_sequencers = len(cpu_sequencers))
ruby.network = network
ruby.profiler = ruby_profiler
ruby.mem_size = total_mem_size
ruby._cpu_ruby_ports = cpu_sequencers
ruby.random_seed = options.random_seed