dram_gen.hh

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/*
 * Copyright (c) 2012-2013, 2017-2019 ARM Limited
 * All rights reserved
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 * not be construed as granting a license to any other intellectual
 * property including but not limited to intellectual property relating
 * to a hardware implementation of the functionality of the software
 * licensed here under.  You may use the software subject to the license
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 * met: redistributions of source code must retain the above copyright
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 * redistributions in binary form must reproduce the above copyright
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 * this software without specific prior written permission.
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 * Authors: Thomas Grass
 *          Andreas Hansson
 *          Sascha Bischoff
 *          Neha Agarwal
 */

#ifndef __CPU_TRAFFIC_GEN_DRAM_GEN_HH__
#define __CPU_TRAFFIC_GEN_DRAM_GEN_HH__

#include "base/bitfield.hh"
#include "base/intmath.hh"
#include "enums/AddrMap.hh"
#include "mem/packet.hh"
#include "random_gen.hh"

class DramGen : public RandomGen
{

  public:

    DramGen(SimObject &obj,
            MasterID master_id, Tick _duration,
            Addr start_addr, Addr end_addr,
            Addr _blocksize, Addr cacheline_size,
            Tick min_period, Tick max_period,
            uint8_t read_percent, Addr data_limit,
            unsigned int num_seq_pkts, unsigned int page_size,
            unsigned int nbr_of_banks_DRAM, unsigned int nbr_of_banks_util,
            Enums::AddrMap addr_mapping,
            unsigned int nbr_of_ranks);

    PacketPtr getNextPacket();

    void genStartAddr(unsigned int new_bank , unsigned int new_rank);

  protected:

    const unsigned int numSeqPkts;

    unsigned int countNumSeqPkts;

    Addr addr;

    bool isRead;

    const unsigned int pageSize;

    const unsigned int pageBits;

    const unsigned int bankBits;

    const unsigned int blockBits;

    const unsigned int nbrOfBanksDRAM;

    const unsigned int nbrOfBanksUtil;

    Enums::AddrMap addrMapping;

    const unsigned int rankBits;

    const unsigned int nbrOfRanks;

};

#endif