2bc5a8b71a
The following command was run: ``` pre-commit run --all-files ``` This ensures all the files in the repository are formatted to pass our checks. Change-Id: Ia2fe3529a50ad925d1076a612d60a4280adc40de Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/62572 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
114 lines
4.6 KiB
Python
114 lines
4.6 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright (c) 2017 Jason Power
|
|
# 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.
|
|
|
|
""" This file creates a set of Ruby caches, the Ruby network, and a simple
|
|
point-to-point topology for the RubyRandomTester to use.
|
|
See Part 3 in the Learning gem5 book:
|
|
http://gem5.org/documentation/learning_gem5/part3/MSIintro
|
|
|
|
IMPORTANT: If you modify this file, it's likely that the Learning gem5 book
|
|
also needs to be updated. For now, email Jason <jason@lowepower.com>
|
|
|
|
"""
|
|
|
|
from m5.defines import buildEnv
|
|
from m5.util import fatal
|
|
|
|
from m5.objects import *
|
|
|
|
from msi_caches import L1Cache, DirController, MyNetwork
|
|
|
|
|
|
class TestCacheSystem(RubySystem):
|
|
def __init__(self):
|
|
if buildEnv["PROTOCOL"] != "MSI":
|
|
fatal("This system assumes MSI from learning gem5!")
|
|
|
|
super(TestCacheSystem, self).__init__()
|
|
|
|
def setup(self, system, tester, mem_ctrls):
|
|
"""Set up the Ruby cache subsystem. Note: This can't be done in the
|
|
constructor because many of these items require a pointer to the
|
|
ruby system (self). This causes infinite recursion in initialize()
|
|
if we do this in the __init__.
|
|
Setting up for running the RubyRandomTester is a little different
|
|
than when we're using CPUs.
|
|
"""
|
|
num_testers = tester.num_cpus
|
|
|
|
# Ruby's global network.
|
|
self.network = MyNetwork(self)
|
|
|
|
# MSI uses 3 virtual networks
|
|
self.number_of_virtual_networks = 3
|
|
self.network.number_of_virtual_networks = 3
|
|
|
|
self.controllers = [
|
|
L1Cache(system, self, self) for i in range(num_testers)
|
|
] + [DirController(self, system.mem_ranges, mem_ctrls)]
|
|
|
|
self.sequencers = [
|
|
RubySequencer(
|
|
version=i,
|
|
# I/D cache is combined and grab from ctrl
|
|
dcache=self.controllers[i].cacheMemory,
|
|
clk_domain=self.clk_domain,
|
|
)
|
|
for i in range(num_testers)
|
|
]
|
|
|
|
for i, c in enumerate(self.controllers[0 : len(self.sequencers)]):
|
|
c.sequencer = self.sequencers[i]
|
|
|
|
self.num_of_sequencers = len(self.sequencers)
|
|
|
|
# Create the network and connect the controllers.
|
|
# NOTE: This is quite different if using Garnet!
|
|
self.network.connectControllers(self.controllers)
|
|
self.network.setup_buffers()
|
|
|
|
# Set up a proxy port for the system_port. Used for load binaries and
|
|
# other functional-only things.
|
|
self.sys_port_proxy = RubyPortProxy()
|
|
system.system_port = self.sys_port_proxy.in_ports
|
|
|
|
# Connect up the sequencers to the random tester
|
|
for seq in self.sequencers:
|
|
if seq.support_data_reqs and seq.support_inst_reqs:
|
|
tester.cpuInstDataPort = seq.in_ports
|
|
elif seq.support_data_reqs:
|
|
tester.cpuDataPort = seq.in_ports
|
|
elif seq.support_inst_reqs:
|
|
tester.cpuInstDataPort = seq.in_ports
|
|
|
|
# Do not automatically retry stalled Ruby requests
|
|
seq.no_retry_on_stall = True
|
|
|
|
# Tell each sequencer this is the ruby tester so that it
|
|
# copies the subblock back to the checker
|
|
seq.using_ruby_tester = True
|