ruby_test.py revision 12610:ce4e3b0639b2
1# -*- coding: utf-8 -*- 2# Copyright (c) 2015 Jason Power 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions are 7# met: redistributions of source code must retain the above copyright 8# notice, this list of conditions and the following disclaimer; 9# redistributions in binary form must reproduce the above copyright 10# notice, this list of conditions and the following disclaimer in the 11# documentation and/or other materials provided with the distribution; 12# neither the name of the copyright holders nor the names of its 13# contributors may be used to endorse or promote products derived from 14# this software without specific prior written permission. 15# 16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27# 28# Authors: Jason Lowe-Power 29 30""" This file creates a system with Ruby caches and runs the ruby random tester 31See Part 3 in the Learning gem5 book: learning.gem5.org/book/part3 32 33IMPORTANT: If you modify this file, it's likely that the Learning gem5 book 34 also needs to be updated. For now, email Jason <jason@lowepower.com> 35 36""" 37from __future__ import print_function 38 39# import the m5 (gem5) library created when gem5 is built 40import m5 41# import all of the SimObjects 42from m5.objects import * 43 44from test_caches import TestCacheSystem 45 46# create the system we are going to simulate 47system = System() 48 49# Set the clock fequency of the system (and all of its children) 50system.clk_domain = SrcClockDomain() 51system.clk_domain.clock = '1GHz' 52system.clk_domain.voltage_domain = VoltageDomain() 53 54# Set up the system 55system.mem_mode = 'timing' # Use timing accesses 56system.mem_ranges = [AddrRange('512MB')] # Create an address range 57 58# Create the tester 59system.tester = RubyTester(checks_to_complete = 100, 60 wakeup_frequency = 10, 61 num_cpus = 2) 62 63# Create a DDR3 memory controller and connect it to the membus 64system.mem_ctrl = DDR3_1600_8x8() 65system.mem_ctrl.range = system.mem_ranges[0] 66 67# Create the Ruby System 68system.caches = TestCacheSystem() 69system.caches.setup(system, system.tester, [system.mem_ctrl]) 70 71# set up the root SimObject and start the simulation 72root = Root(full_system = False, system = system) 73 74# Not much point in this being higher than the L1 latency 75m5.ticks.setGlobalFrequency('1ns') 76 77# instantiate all of the objects we've created above 78m5.instantiate() 79 80print("Beginning simulation!") 81exit_event = m5.simulate() 82print('Exiting @ tick {} because {}'.format( 83 m5.curTick(), exit_event.getCause()) 84 ) 85