112610Sjason@lowepower.com# -*- coding: utf-8 -*- 212610Sjason@lowepower.com# Copyright (c) 2017 Jason Power 312610Sjason@lowepower.com# All rights reserved. 412610Sjason@lowepower.com# 512610Sjason@lowepower.com# Redistribution and use in source and binary forms, with or without 612610Sjason@lowepower.com# modification, are permitted provided that the following conditions are 712610Sjason@lowepower.com# met: redistributions of source code must retain the above copyright 812610Sjason@lowepower.com# notice, this list of conditions and the following disclaimer; 912610Sjason@lowepower.com# redistributions in binary form must reproduce the above copyright 1012610Sjason@lowepower.com# notice, this list of conditions and the following disclaimer in the 1112610Sjason@lowepower.com# documentation and/or other materials provided with the distribution; 1212610Sjason@lowepower.com# neither the name of the copyright holders nor the names of its 1312610Sjason@lowepower.com# contributors may be used to endorse or promote products derived from 1412610Sjason@lowepower.com# this software without specific prior written permission. 1512610Sjason@lowepower.com# 1612610Sjason@lowepower.com# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1712610Sjason@lowepower.com# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1812610Sjason@lowepower.com# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1912610Sjason@lowepower.com# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2012610Sjason@lowepower.com# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2112610Sjason@lowepower.com# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2212610Sjason@lowepower.com# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2312610Sjason@lowepower.com# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2412610Sjason@lowepower.com# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2512610Sjason@lowepower.com# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2612610Sjason@lowepower.com# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2712610Sjason@lowepower.com# 2812610Sjason@lowepower.com# Authors: Jason Power 2912610Sjason@lowepower.com 3012610Sjason@lowepower.com""" This file creates a set of Ruby caches, the Ruby network, and a simple 3112610Sjason@lowepower.compoint-to-point topology for the RubyRandomTester to use. 3212610Sjason@lowepower.comSee Part 3 in the Learning gem5 book: learning.gem5.org/book/part3 3312610Sjason@lowepower.com 3412610Sjason@lowepower.comIMPORTANT: If you modify this file, it's likely that the Learning gem5 book 3512610Sjason@lowepower.com also needs to be updated. For now, email Jason <jason@lowepower.com> 3612610Sjason@lowepower.com 3712610Sjason@lowepower.com""" 3812610Sjason@lowepower.com 3913774Sandreas.sandberg@arm.comfrom __future__ import print_function 4013774Sandreas.sandberg@arm.comfrom __future__ import absolute_import 4113774Sandreas.sandberg@arm.com 4212610Sjason@lowepower.comfrom m5.defines import buildEnv 4312610Sjason@lowepower.comfrom m5.util import fatal 4412610Sjason@lowepower.com 4512610Sjason@lowepower.comfrom m5.objects import * 4612610Sjason@lowepower.com 4713840Sjason@lowepower.comfrom msi_caches import L1Cache, DirController, MyNetwork 4812610Sjason@lowepower.com 4912610Sjason@lowepower.comclass TestCacheSystem(RubySystem): 5012610Sjason@lowepower.com 5112610Sjason@lowepower.com def __init__(self): 5212610Sjason@lowepower.com if buildEnv['PROTOCOL'] != 'MSI': 5312610Sjason@lowepower.com fatal("This system assumes MSI from learning gem5!") 5412610Sjason@lowepower.com 5512610Sjason@lowepower.com super(TestCacheSystem, self).__init__() 5612610Sjason@lowepower.com 5712610Sjason@lowepower.com def setup(self, system, tester, mem_ctrls): 5812610Sjason@lowepower.com """Set up the Ruby cache subsystem. Note: This can't be done in the 5912610Sjason@lowepower.com constructor because many of these items require a pointer to the 6012610Sjason@lowepower.com ruby system (self). This causes infinite recursion in initialize() 6112610Sjason@lowepower.com if we do this in the __init__. 6212610Sjason@lowepower.com Setting up for running the RubyRandomTester is a little different 6312610Sjason@lowepower.com than when we're using CPUs. 6412610Sjason@lowepower.com """ 6512610Sjason@lowepower.com num_testers = tester.num_cpus 6612610Sjason@lowepower.com 6712610Sjason@lowepower.com # Ruby's global network. 6812610Sjason@lowepower.com self.network = MyNetwork(self) 6912610Sjason@lowepower.com 7012610Sjason@lowepower.com # MSI uses 3 virtual networks 7112610Sjason@lowepower.com self.number_of_virtual_networks = 3 7212610Sjason@lowepower.com self.network.number_of_virtual_networks = 3 7312610Sjason@lowepower.com 7412610Sjason@lowepower.com self.controllers = \ 7512610Sjason@lowepower.com [L1Cache(system, self, self) for i in range(num_testers)] + \ 7612610Sjason@lowepower.com [DirController(self, system.mem_ranges, mem_ctrls)] 7712610Sjason@lowepower.com 7812610Sjason@lowepower.com self.sequencers = [RubySequencer(version = i, 7912610Sjason@lowepower.com # I/D cache is combined and grab from ctrl 8012610Sjason@lowepower.com icache = self.controllers[i].cacheMemory, 8112610Sjason@lowepower.com dcache = self.controllers[i].cacheMemory, 8212610Sjason@lowepower.com clk_domain = self.clk_domain, 8312610Sjason@lowepower.com ) for i in range(num_testers)] 8412610Sjason@lowepower.com 8512610Sjason@lowepower.com for i,c in enumerate(self.controllers[0:len(self.sequencers)]): 8612610Sjason@lowepower.com c.sequencer = self.sequencers[i] 8712610Sjason@lowepower.com 8812610Sjason@lowepower.com self.num_of_sequencers = len(self.sequencers) 8912610Sjason@lowepower.com 9012610Sjason@lowepower.com # Create the network and connect the controllers. 9112610Sjason@lowepower.com # NOTE: This is quite different if using Garnet! 9212610Sjason@lowepower.com self.network.connectControllers(self.controllers) 9312610Sjason@lowepower.com self.network.setup_buffers() 9412610Sjason@lowepower.com 9512610Sjason@lowepower.com # Set up a proxy port for the system_port. Used for load binaries and 9612610Sjason@lowepower.com # other functional-only things. 9712610Sjason@lowepower.com self.sys_port_proxy = RubyPortProxy() 9812610Sjason@lowepower.com system.system_port = self.sys_port_proxy.slave 9912610Sjason@lowepower.com 10012610Sjason@lowepower.com # Connect up the sequencers to the random tester 10112610Sjason@lowepower.com for seq in self.sequencers: 10212610Sjason@lowepower.com if seq.support_data_reqs and seq.support_inst_reqs: 10312610Sjason@lowepower.com tester.cpuInstDataPort = seq.slave 10412610Sjason@lowepower.com elif seq.support_data_reqs: 10512610Sjason@lowepower.com tester.cpuDataPort = seq.slave 10612610Sjason@lowepower.com elif seq.support_inst_reqs: 10712610Sjason@lowepower.com tester.cpuInstDataPort = seq.slave 10812610Sjason@lowepower.com 10912610Sjason@lowepower.com # Do not automatically retry stalled Ruby requests 11012610Sjason@lowepower.com seq.no_retry_on_stall = True 11112610Sjason@lowepower.com 11212610Sjason@lowepower.com # Tell each sequencer this is the ruby tester so that it 11312610Sjason@lowepower.com # copies the subblock back to the checker 11412610Sjason@lowepower.com seq.using_ruby_tester = True 115