QoSMemSinkCtrl.py revision 13665
14394Ssaidi@eecs.umich.edu# Copyright (c) 2018 ARM Limited 24394Ssaidi@eecs.umich.edu# All rights reserved. 34394Ssaidi@eecs.umich.edu# 44394Ssaidi@eecs.umich.edu# The license below extends only to copyright in the software and shall 54394Ssaidi@eecs.umich.edu# not be construed as granting a license to any other intellectual 64394Ssaidi@eecs.umich.edu# property including but not limited to intellectual property relating 74394Ssaidi@eecs.umich.edu# to a hardware implementation of the functionality of the software 84394Ssaidi@eecs.umich.edu# licensed hereunder. You may use the software subject to the license 94394Ssaidi@eecs.umich.edu# terms below provided that you ensure that this notice is replicated 104394Ssaidi@eecs.umich.edu# unmodified and in its entirety in all distributions of the software, 114394Ssaidi@eecs.umich.edu# modified or unmodified, in source code or in binary form. 124394Ssaidi@eecs.umich.edu# 134394Ssaidi@eecs.umich.edu# Redistribution and use in source and binary forms, with or without 144394Ssaidi@eecs.umich.edu# modification, are permitted provided that the following conditions are 154394Ssaidi@eecs.umich.edu# met: redistributions of source code must retain the above copyright 164394Ssaidi@eecs.umich.edu# notice, this list of conditions and the following disclaimer; 174394Ssaidi@eecs.umich.edu# redistributions in binary form must reproduce the above copyright 184394Ssaidi@eecs.umich.edu# notice, this list of conditions and the following disclaimer in the 194394Ssaidi@eecs.umich.edu# documentation and/or other materials provided with the distribution; 204394Ssaidi@eecs.umich.edu# neither the name of the copyright holders nor the names of its 214394Ssaidi@eecs.umich.edu# contributors may be used to endorse or promote products derived from 224394Ssaidi@eecs.umich.edu# this software without specific prior written permission. 234394Ssaidi@eecs.umich.edu# 244394Ssaidi@eecs.umich.edu# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 254394Ssaidi@eecs.umich.edu# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 264394Ssaidi@eecs.umich.edu# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 274394Ssaidi@eecs.umich.edu# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 284394Ssaidi@eecs.umich.edu# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 294394Ssaidi@eecs.umich.edu# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 304394Ssaidi@eecs.umich.edu# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 314394Ssaidi@eecs.umich.edu# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 328229Snate@binkert.org# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 334394Ssaidi@eecs.umich.edu# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 344394Ssaidi@eecs.umich.edu# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 354394Ssaidi@eecs.umich.edu# 364394Ssaidi@eecs.umich.edu# Author: Matteo Andreozzi 374394Ssaidi@eecs.umich.edu 384394Ssaidi@eecs.umich.edufrom m5.params import * 394394Ssaidi@eecs.umich.edufrom m5.objects.QoSMemCtrl import * 404394Ssaidi@eecs.umich.edu 414394Ssaidi@eecs.umich.educlass QoSMemSinkCtrl(QoSMemCtrl): 424571Sgblack@eecs.umich.edu type = 'QoSMemSinkCtrl' 434394Ssaidi@eecs.umich.edu cxx_header = "mem/qos/mem_sink.hh" 444394Ssaidi@eecs.umich.edu cxx_class = "QoS::MemSinkCtrl" 454394Ssaidi@eecs.umich.edu port = SlavePort("Slave ports") 464394Ssaidi@eecs.umich.edu 474394Ssaidi@eecs.umich.edu # the basic configuration of the controller architecture, note 484394Ssaidi@eecs.umich.edu # that each entry corresponds to a burst for the specific DRAM 494394Ssaidi@eecs.umich.edu # configuration (e.g. x32 with burst length 8 is 32 bytes) and not 5011321Ssteve.reinhardt@amd.com # the cacheline size or request/packet size 514394Ssaidi@eecs.umich.edu write_buffer_size = Param.Unsigned(64, "Number of write queue entries") 524394Ssaidi@eecs.umich.edu read_buffer_size = Param.Unsigned(32, "Number of read queue entries") 534394Ssaidi@eecs.umich.edu 544394Ssaidi@eecs.umich.edu # memory packet size 554394Ssaidi@eecs.umich.edu memory_packet_size = Param.MemorySize("32B", "Memory packet size") 564394Ssaidi@eecs.umich.edu 57 # request latency - minimum timing between requests 58 request_latency = Param.Latency("20ns", "Memory latency between requests") 59 60 # response latency - time to issue a response once a request is serviced 61 response_latency = Param.Latency("20ns", "Memory response latency") 62 63 64