QoSMemSinkCtrl.py revision 12967
16657Snate@binkert.org# Copyright (c) 2018 ARM Limited 26657Snate@binkert.org# All rights reserved. 36657Snate@binkert.org# 46657Snate@binkert.org# The license below extends only to copyright in the software and shall 56657Snate@binkert.org# not be construed as granting a license to any other intellectual 66657Snate@binkert.org# property including but not limited to intellectual property relating 76657Snate@binkert.org# to a hardware implementation of the functionality of the software 86657Snate@binkert.org# licensed hereunder. You may use the software subject to the license 96657Snate@binkert.org# terms below provided that you ensure that this notice is replicated 106657Snate@binkert.org# unmodified and in its entirety in all distributions of the software, 116657Snate@binkert.org# modified or unmodified, in source code or in binary form. 126657Snate@binkert.org# 136657Snate@binkert.org# Redistribution and use in source and binary forms, with or without 146657Snate@binkert.org# modification, are permitted provided that the following conditions are 156657Snate@binkert.org# met: redistributions of source code must retain the above copyright 166657Snate@binkert.org# notice, this list of conditions and the following disclaimer; 176657Snate@binkert.org# redistributions in binary form must reproduce the above copyright 186657Snate@binkert.org# notice, this list of conditions and the following disclaimer in the 196657Snate@binkert.org# documentation and/or other materials provided with the distribution; 206657Snate@binkert.org# neither the name of the copyright holders nor the names of its 216657Snate@binkert.org# contributors may be used to endorse or promote products derived from 226657Snate@binkert.org# this software without specific prior written permission. 236657Snate@binkert.org# 246657Snate@binkert.org# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 256657Snate@binkert.org# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 266657Snate@binkert.org# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 276657Snate@binkert.org# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 286999Snate@binkert.org# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 296657Snate@binkert.org# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 306657Snate@binkert.org# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 316657Snate@binkert.org# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 326657Snate@binkert.org# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 338189SLisa.Hsu@amd.com# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 346657Snate@binkert.org# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 356882SBrad.Beckmann@amd.com# 367055Snate@binkert.org# Author: Matteo Andreozzi 376882SBrad.Beckmann@amd.com 386882SBrad.Beckmann@amd.comfrom m5.params import * 398191SLisa.Hsu@amd.comfrom QoSMemCtrl import * 406882SBrad.Beckmann@amd.com 416882SBrad.Beckmann@amd.comclass QoSMemSinkCtrl(QoSMemCtrl): 429102SNuwan.Jayasena@amd.com type = 'QoSMemSinkCtrl' 436888SBrad.Beckmann@amd.com cxx_header = "mem/qos/mem_sink.hh" 446882SBrad.Beckmann@amd.com cxx_class = "QoS::MemSinkCtrl" 456882SBrad.Beckmann@amd.com port = SlavePort("Slave ports") 466657Snate@binkert.org 476657Snate@binkert.org # the basic configuration of the controller architecture, note 486657Snate@binkert.org # that each entry corresponds to a burst for the specific DRAM 496657Snate@binkert.org # configuration (e.g. x32 with burst length 8 is 32 bytes) and not 506657Snate@binkert.org # the cacheline size or request/packet size 517839Snilay@cs.wisc.edu write_buffer_size = Param.Unsigned(64, "Number of write queue entries") 526657Snate@binkert.org read_buffer_size = Param.Unsigned(32, "Number of read queue entries") 536882SBrad.Beckmann@amd.com 546882SBrad.Beckmann@amd.com # memory packet size 556882SBrad.Beckmann@amd.com memory_packet_size = Param.MemorySize("32B", "Memory packet size") 566882SBrad.Beckmann@amd.com 576882SBrad.Beckmann@amd.com # request latency - minimum timing between requests 586882SBrad.Beckmann@amd.com request_latency = Param.Latency("20ns", "Memory latency between requests") 596657Snate@binkert.org 606657Snate@binkert.org # response latency - time to issue a response once a request is serviced 616657Snate@binkert.org response_latency = Param.Latency("20ns", "Memory response latency") 626657Snate@binkert.org 636657Snate@binkert.org 649104Shestness@cs.utexas.edu