dram_gen.hh revision 12811
112396SRiken.Gohil@arm.com/* 212811Sandreas.sandberg@arm.com * Copyright (c) 2012-2013, 2017-2018 ARM Limited 312396SRiken.Gohil@arm.com * All rights reserved 412396SRiken.Gohil@arm.com * 512396SRiken.Gohil@arm.com * The license below extends only to copyright in the software and shall 612396SRiken.Gohil@arm.com * not be construed as granting a license to any other intellectual 712396SRiken.Gohil@arm.com * property including but not limited to intellectual property relating 812396SRiken.Gohil@arm.com * to a hardware implementation of the functionality of the software 912396SRiken.Gohil@arm.com * licensed here under. You may use the software subject to the license 1012396SRiken.Gohil@arm.com * terms below provided that you ensure that this notice is replicated 1112396SRiken.Gohil@arm.com * unmodified and in its entirety in all distributions of the software, 1212396SRiken.Gohil@arm.com * modified or unmodified, in source code or in binary form. 1312396SRiken.Gohil@arm.com * 1412396SRiken.Gohil@arm.com * Redistribution and use in source and binary forms, with or without 1512396SRiken.Gohil@arm.com * modification, are permitted provided that the following conditions are 1612396SRiken.Gohil@arm.com * met: redistributions of source code must retain the above copyright 1712396SRiken.Gohil@arm.com * notice, this list of conditions and the following disclaimer; 1812396SRiken.Gohil@arm.com * redistributions in binary form must reproduce the above copyright 1912396SRiken.Gohil@arm.com * notice, this list of conditions and the following disclaimer in the 2012396SRiken.Gohil@arm.com * documentation and/or other materials provided with the distribution; 2112396SRiken.Gohil@arm.com * neither the name of the copyright holders nor the names of its 2212396SRiken.Gohil@arm.com * contributors may be used to endorse or promote products derived from 2312396SRiken.Gohil@arm.com * this software without specific prior written permission. 2412396SRiken.Gohil@arm.com * 2512396SRiken.Gohil@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2612396SRiken.Gohil@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2712396SRiken.Gohil@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2812396SRiken.Gohil@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2912396SRiken.Gohil@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 3012396SRiken.Gohil@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 3112396SRiken.Gohil@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 3212396SRiken.Gohil@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 3312396SRiken.Gohil@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3412396SRiken.Gohil@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 3512396SRiken.Gohil@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3612396SRiken.Gohil@arm.com * 3712396SRiken.Gohil@arm.com * Authors: Thomas Grass 3812396SRiken.Gohil@arm.com * Andreas Hansson 3912396SRiken.Gohil@arm.com * Sascha Bischoff 4012396SRiken.Gohil@arm.com * Neha Agarwal 4112396SRiken.Gohil@arm.com */ 4212396SRiken.Gohil@arm.com 4312396SRiken.Gohil@arm.com/** 4412396SRiken.Gohil@arm.com * @file 4512396SRiken.Gohil@arm.com * Declaration of the DRAM generator for issuing variable page 4612396SRiken.Gohil@arm.com * hit length requests and bank utilisation. 4712396SRiken.Gohil@arm.com */ 4812396SRiken.Gohil@arm.com 4912396SRiken.Gohil@arm.com#ifndef __CPU_TRAFFIC_GEN_DRAM_GEN_HH__ 5012396SRiken.Gohil@arm.com#define __CPU_TRAFFIC_GEN_DRAM_GEN_HH__ 5112396SRiken.Gohil@arm.com 5212396SRiken.Gohil@arm.com#include "base/bitfield.hh" 5312396SRiken.Gohil@arm.com#include "base/intmath.hh" 5412396SRiken.Gohil@arm.com#include "mem/packet.hh" 5512396SRiken.Gohil@arm.com#include "random_gen.hh" 5612396SRiken.Gohil@arm.com 5712396SRiken.Gohil@arm.com/** 5812396SRiken.Gohil@arm.com * DRAM specific generator is for issuing request with variable page 5912396SRiken.Gohil@arm.com * hit length and bank utilization. Currently assumes a single 6012396SRiken.Gohil@arm.com * channel configuration. 6112396SRiken.Gohil@arm.com */ 6212396SRiken.Gohil@arm.comclass DramGen : public RandomGen 6312396SRiken.Gohil@arm.com{ 6412396SRiken.Gohil@arm.com 6512396SRiken.Gohil@arm.com public: 6612396SRiken.Gohil@arm.com 6712396SRiken.Gohil@arm.com /** 6812396SRiken.Gohil@arm.com * Create a DRAM address sequence generator. 6912396SRiken.Gohil@arm.com * 7012811Sandreas.sandberg@arm.com * @param gen Traffic generator owning this sequence generator 7112396SRiken.Gohil@arm.com * @param _duration duration of this state before transitioning 7212396SRiken.Gohil@arm.com * @param start_addr Start address 7312396SRiken.Gohil@arm.com * @param end_addr End address 7412396SRiken.Gohil@arm.com * @param _blocksize Size used for transactions injected 7512396SRiken.Gohil@arm.com * @param min_period Lower limit of random inter-transaction time 7612396SRiken.Gohil@arm.com * @param max_period Upper limit of random inter-transaction time 7712396SRiken.Gohil@arm.com * @param read_percent Percent of transactions that are reads 7812396SRiken.Gohil@arm.com * @param data_limit Upper limit on how much data to read/write 7912396SRiken.Gohil@arm.com * @param num_seq_pkts Number of packets per stride, each of _blocksize 8012396SRiken.Gohil@arm.com * @param page_size Page size (bytes) used in the DRAM 8112396SRiken.Gohil@arm.com * @param nbr_of_banks_DRAM Total number of banks in DRAM 8212396SRiken.Gohil@arm.com * @param nbr_of_banks_util Number of banks to utilized, 8312396SRiken.Gohil@arm.com * for N banks, we will use banks: 0->(N-1) 8412396SRiken.Gohil@arm.com * @param addr_mapping Address mapping to be used, 8512396SRiken.Gohil@arm.com * 0: RoCoRaBaCh, 1: RoRaBaCoCh/RoRaBaChCo 8612396SRiken.Gohil@arm.com * assumes single channel system 8712396SRiken.Gohil@arm.com */ 8812811Sandreas.sandberg@arm.com DramGen(BaseTrafficGen &gen, Tick _duration, 8912396SRiken.Gohil@arm.com Addr start_addr, Addr end_addr, Addr _blocksize, 9012396SRiken.Gohil@arm.com Tick min_period, Tick max_period, 9112396SRiken.Gohil@arm.com uint8_t read_percent, Addr data_limit, 9212396SRiken.Gohil@arm.com unsigned int num_seq_pkts, unsigned int page_size, 9312396SRiken.Gohil@arm.com unsigned int nbr_of_banks_DRAM, unsigned int nbr_of_banks_util, 9412396SRiken.Gohil@arm.com unsigned int addr_mapping, 9512811Sandreas.sandberg@arm.com unsigned int nbr_of_ranks); 9612396SRiken.Gohil@arm.com 9712396SRiken.Gohil@arm.com PacketPtr getNextPacket(); 9812396SRiken.Gohil@arm.com 9912396SRiken.Gohil@arm.com /** Insert bank, rank, and column bits into packed 10012396SRiken.Gohil@arm.com * address to create address for 1st command in a 10112396SRiken.Gohil@arm.com * series 10212396SRiken.Gohil@arm.com * @param new_bank Bank number of next packet series 10312396SRiken.Gohil@arm.com * @param new_rank Rank value of next packet series 10412396SRiken.Gohil@arm.com */ 10512396SRiken.Gohil@arm.com void genStartAddr(unsigned int new_bank , unsigned int new_rank); 10612396SRiken.Gohil@arm.com 10712396SRiken.Gohil@arm.com protected: 10812396SRiken.Gohil@arm.com 10912396SRiken.Gohil@arm.com /** Number of sequential DRAM packets to be generated per cpu request */ 11012396SRiken.Gohil@arm.com const unsigned int numSeqPkts; 11112396SRiken.Gohil@arm.com 11212396SRiken.Gohil@arm.com /** Track number of sequential packets generated for a request */ 11312396SRiken.Gohil@arm.com unsigned int countNumSeqPkts; 11412396SRiken.Gohil@arm.com 11512396SRiken.Gohil@arm.com /** Address of request */ 11612396SRiken.Gohil@arm.com Addr addr; 11712396SRiken.Gohil@arm.com 11812396SRiken.Gohil@arm.com /** Remember type of requests to be generated in series */ 11912396SRiken.Gohil@arm.com bool isRead; 12012396SRiken.Gohil@arm.com 12112396SRiken.Gohil@arm.com /** Page size of DRAM */ 12212396SRiken.Gohil@arm.com const unsigned int pageSize; 12312396SRiken.Gohil@arm.com 12412396SRiken.Gohil@arm.com /** Number of page bits in DRAM address */ 12512396SRiken.Gohil@arm.com const unsigned int pageBits; 12612396SRiken.Gohil@arm.com 12712396SRiken.Gohil@arm.com /** Number of bank bits in DRAM address*/ 12812396SRiken.Gohil@arm.com const unsigned int bankBits; 12912396SRiken.Gohil@arm.com 13012396SRiken.Gohil@arm.com /** Number of block bits in DRAM address */ 13112396SRiken.Gohil@arm.com const unsigned int blockBits; 13212396SRiken.Gohil@arm.com 13312396SRiken.Gohil@arm.com /** Number of banks in DRAM */ 13412396SRiken.Gohil@arm.com const unsigned int nbrOfBanksDRAM; 13512396SRiken.Gohil@arm.com 13612396SRiken.Gohil@arm.com /** Number of banks to be utilized for a given configuration */ 13712396SRiken.Gohil@arm.com const unsigned int nbrOfBanksUtil; 13812396SRiken.Gohil@arm.com 13912396SRiken.Gohil@arm.com /** Address mapping to be used */ 14012396SRiken.Gohil@arm.com unsigned int addrMapping; 14112396SRiken.Gohil@arm.com 14212396SRiken.Gohil@arm.com /** Number of rank bits in DRAM address*/ 14312396SRiken.Gohil@arm.com const unsigned int rankBits; 14412396SRiken.Gohil@arm.com 14512396SRiken.Gohil@arm.com /** Number of ranks to be utilized for a given configuration */ 14612396SRiken.Gohil@arm.com const unsigned int nbrOfRanks; 14712396SRiken.Gohil@arm.com 14812396SRiken.Gohil@arm.com}; 14912396SRiken.Gohil@arm.com 15012396SRiken.Gohil@arm.com#endif 151