112810Sandreas.sandberg@arm.com# Copyright (c) 2012, 2016, 2018 ARM Limited 29241Sandreas.hansson@arm.com# All rights reserved. 39241Sandreas.hansson@arm.com# 49241Sandreas.hansson@arm.com# The license below extends only to copyright in the software and shall 59241Sandreas.hansson@arm.com# not be construed as granting a license to any other intellectual 69241Sandreas.hansson@arm.com# property including but not limited to intellectual property relating 79241Sandreas.hansson@arm.com# to a hardware implementation of the functionality of the software 89241Sandreas.hansson@arm.com# licensed hereunder. You may use the software subject to the license 99241Sandreas.hansson@arm.com# terms below provided that you ensure that this notice is replicated 109241Sandreas.hansson@arm.com# unmodified and in its entirety in all distributions of the software, 119241Sandreas.hansson@arm.com# modified or unmodified, in source code or in binary form. 129241Sandreas.hansson@arm.com# 139241Sandreas.hansson@arm.com# Redistribution and use in source and binary forms, with or without 149241Sandreas.hansson@arm.com# modification, are permitted provided that the following conditions are 159241Sandreas.hansson@arm.com# met: redistributions of source code must retain the above copyright 169241Sandreas.hansson@arm.com# notice, this list of conditions and the following disclaimer; 179241Sandreas.hansson@arm.com# redistributions in binary form must reproduce the above copyright 189241Sandreas.hansson@arm.com# notice, this list of conditions and the following disclaimer in the 199241Sandreas.hansson@arm.com# documentation and/or other materials provided with the distribution; 209241Sandreas.hansson@arm.com# neither the name of the copyright holders nor the names of its 219241Sandreas.hansson@arm.com# contributors may be used to endorse or promote products derived from 229241Sandreas.hansson@arm.com# this software without specific prior written permission. 239241Sandreas.hansson@arm.com# 249241Sandreas.hansson@arm.com# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 259241Sandreas.hansson@arm.com# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 269241Sandreas.hansson@arm.com# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 279241Sandreas.hansson@arm.com# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 289241Sandreas.hansson@arm.com# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 299241Sandreas.hansson@arm.com# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 309241Sandreas.hansson@arm.com# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 319241Sandreas.hansson@arm.com# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 329241Sandreas.hansson@arm.com# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 339241Sandreas.hansson@arm.com# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 349241Sandreas.hansson@arm.com# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 359241Sandreas.hansson@arm.com# 369241Sandreas.hansson@arm.com# Authors: Thomas Grass 379241Sandreas.hansson@arm.com# Andreas Hansson 389241Sandreas.hansson@arm.com# Sascha Bischoff 399241Sandreas.hansson@arm.com 409241Sandreas.hansson@arm.comfrom m5.params import * 4113665Sandreas.sandberg@arm.comfrom m5.objects.BaseTrafficGen import * 429241Sandreas.hansson@arm.com 4312810Sandreas.sandberg@arm.com# The behaviour of this traffic generator is specified in a 4412810Sandreas.sandberg@arm.com# configuration file, and this file describes a state transition graph 4512810Sandreas.sandberg@arm.com# where each state is a specific generator behaviour. Examples include 4612810Sandreas.sandberg@arm.com# idling, generating linear address sequences, random sequences and 4712810Sandreas.sandberg@arm.com# replay of captured traces. By describing these behaviours as states, 4812810Sandreas.sandberg@arm.com# it is straight forward to create very complex behaviours, simply by 4912810Sandreas.sandberg@arm.com# arranging them in graphs. The graph transitions can also be 5012810Sandreas.sandberg@arm.com# annotated with probabilities, effectively making it a Markov Chain. 5112810Sandreas.sandberg@arm.comclass TrafficGen(BaseTrafficGen): 529241Sandreas.hansson@arm.com type = 'TrafficGen' 539338SAndreas.Sandberg@arm.com cxx_header = "cpu/testers/traffic_gen/traffic_gen.hh" 549241Sandreas.hansson@arm.com 559241Sandreas.hansson@arm.com # Config file to parse for the state descriptions 569241Sandreas.hansson@arm.com config_file = Param.String("Configuration file describing the behaviour") 57