433 lines
23 KiB
C++
433 lines
23 KiB
C++
/*
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* Copyright (c) 2019, Technische Universität Kaiserslautern
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Author: Lukas Steiner
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*/
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#include "CheckerDDR3.h"
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CheckerDDR3::CheckerDDR3()
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{
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Configuration &config = Configuration::getInstance();
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memSpec = dynamic_cast<const MemSpecDDR3 *>(config.memSpec);
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if (memSpec == nullptr)
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SC_REPORT_FATAL("CheckerDDR3", "Wrong MemSpec chosen");
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lastScheduledByCommandAndBank = std::vector<std::vector<sc_time>>
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(numberOfCommands(), std::vector<sc_time>(memSpec->numberOfBanks, sc_max_time()));
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lastScheduledByCommandAndRank = std::vector<std::vector<sc_time>>
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(numberOfCommands(), std::vector<sc_time>(memSpec->numberOfRanks, sc_max_time()));
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lastScheduledByCommand = std::vector<sc_time>(numberOfCommands(), sc_max_time());
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lastCommandOnBus = sc_max_time();
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last4Activates = std::vector<std::queue<sc_time>>(memSpec->numberOfRanks);
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tBURST = memSpec->burstLength / memSpec->dataRate * memSpec->tCK;
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tRDWR = memSpec->tRL + tBURST + 2 * memSpec->tCK - memSpec->tWL;
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tRDWR_R = memSpec->tRL + tBURST + memSpec->tRTRS - memSpec->tWL;
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tWRRD = memSpec->tWL + tBURST + memSpec->tWTR - memSpec->tAL;
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tWRRD_R = memSpec->tWL + tBURST + memSpec->tRTRS - memSpec->tRL;
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tWRPRE = memSpec->tWL + tBURST + memSpec->tWR;
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tRDPDEN = memSpec->tRL + tBURST + memSpec->tCK;
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tWRPDEN = memSpec->tWL + tBURST + memSpec->tWR;
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tWRAPDEN = memSpec->tWL + tBURST + memSpec->tWR + memSpec->tCK;
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}
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sc_time CheckerDDR3::timeToSatisfyConstraints(Command command, Rank rank, BankGroup, Bank bank, unsigned) const
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{
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sc_time lastCommandStart;
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sc_time earliestTimeToStart = sc_time_stamp();
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if (command == Command::RD || command == Command::RDA)
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{
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lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRCD - memSpec->tAL);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCD);
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lastCommandStart = lastScheduledByCommand[Command::RD] != lastScheduledByCommandAndRank[Command::RD][rank.ID()] ? lastScheduledByCommand[Command::RD] : sc_max_time();
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tBURST + memSpec->tRTRS);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCD);
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lastCommandStart = lastScheduledByCommand[Command::RDA] != lastScheduledByCommandAndRank[Command::RDA][rank.ID()] ? lastScheduledByCommand[Command::RDA] : sc_max_time();
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tBURST + memSpec->tRTRS);
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if (command == Command::RDA)
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{
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lastCommandStart = lastScheduledByCommandAndBank[Command::WR][bank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE - memSpec->tRTP - memSpec->tAL);
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}
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lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD);
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lastCommandStart = lastScheduledByCommand[Command::WR];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_R);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD);
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lastCommandStart = lastScheduledByCommand[Command::WRA];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_R);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXSDLL);
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}
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else if (command == Command::WR || command == Command::WRA)
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{
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lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRCD - memSpec->tAL);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDWR);
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lastCommandStart = lastScheduledByCommand[Command::RD] != lastScheduledByCommandAndRank[Command::RD][rank.ID()] ? lastScheduledByCommand[Command::RD] : sc_max_time();
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDWR_R);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDWR);
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lastCommandStart = lastScheduledByCommand[Command::RDA] != lastScheduledByCommandAndRank[Command::RDA][rank.ID()] ? lastScheduledByCommand[Command::RDA] : sc_max_time();
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDWR_R);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCD);
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lastCommandStart = lastScheduledByCommand[Command::WR] != lastScheduledByCommandAndRank[Command::WR][rank.ID()] ? lastScheduledByCommand[Command::WR] : sc_max_time();
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tBURST + memSpec->tRTRS);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCD);
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lastCommandStart = lastScheduledByCommand[Command::WRA] != lastScheduledByCommandAndRank[Command::WRA][rank.ID()] ? lastScheduledByCommand[Command::WRA] : sc_max_time();
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tBURST + memSpec->tRTRS);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXSDLL);
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}
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else if (command == Command::ACT)
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{
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lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRC);
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lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRRD);
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lastCommandStart = lastScheduledByCommandAndBank[Command::RDA][bank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tAL + memSpec->tRTP + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndBank[Command::WRA][bank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndBank[Command::PRE][bank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PREA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXP][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::REFA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFC);
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lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXS);
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if (last4Activates[rank.ID()].size() >= 4)
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earliestTimeToStart = std::max(earliestTimeToStart, last4Activates[rank.ID()].front() + memSpec->tFAW);
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}
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else if (command == Command::PRE)
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{
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lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRAS);
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lastCommandStart = lastScheduledByCommandAndBank[Command::RD][bank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tAL + memSpec->tRTP);
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lastCommandStart = lastScheduledByCommandAndBank[Command::WR][bank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
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}
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else if (command == Command::PREA)
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{
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lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRAS);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tAL + memSpec->tRTP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tAL + memSpec->tRTP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
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}
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else if (command == Command::REFA)
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{
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lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRC);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tAL + memSpec->tRTP + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PRE][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PREA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXP][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::REFA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFC);
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lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXS);
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}
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else if (command == Command::PDEA)
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{
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lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tACTPDEN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDPDEN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDPDEN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPDEN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRAPDEN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PRE][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPRPDEN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCKE);
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}
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else if (command == Command::PDXA)
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{
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDEA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPD);
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}
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else if (command == Command::PDEP)
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{
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lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDPDEN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDPDEN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRAPDEN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PRE][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPRPDEN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PREA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPRPDEN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXP][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCKE);
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lastCommandStart = lastScheduledByCommandAndRank[Command::REFA][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tREFPDEN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXS);
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}
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else if (command == Command::PDXP)
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{
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDEP][rank.ID()];
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if (lastCommandStart != sc_max_time())
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPD);
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}
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|
else if (command == Command::SREFEN)
|
|
{
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank.ID()];
|
|
if (lastCommandStart != sc_max_time())
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRC);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
|
|
if (lastCommandStart != sc_max_time())
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + std::max(tRDPDEN, memSpec->tAL + memSpec->tRTP + memSpec->tRP));
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
|
|
if (lastCommandStart != sc_max_time())
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + std::max(tWRAPDEN, tWRPRE + memSpec->tRP));
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PRE][rank.ID()];
|
|
if (lastCommandStart != sc_max_time())
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PREA][rank.ID()];
|
|
if (lastCommandStart != sc_max_time())
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXP][rank.ID()];
|
|
if (lastCommandStart != sc_max_time())
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::REFA][rank.ID()];
|
|
if (lastCommandStart != sc_max_time())
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFC);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank.ID()];
|
|
if (lastCommandStart != sc_max_time())
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXS);
|
|
}
|
|
else if (command == Command::SREFEX)
|
|
{
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEN][rank.ID()];
|
|
if (lastCommandStart != sc_max_time())
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCKESR);
|
|
}
|
|
else
|
|
SC_REPORT_FATAL("CheckerDDR3", "Unknown command!");
|
|
|
|
if (lastCommandOnBus != sc_max_time())
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandOnBus + memSpec->tCK);
|
|
|
|
return earliestTimeToStart;
|
|
}
|
|
|
|
void CheckerDDR3::insert(Command command, Rank rank, BankGroup, Bank bank, unsigned)
|
|
{
|
|
PRINTDEBUGMESSAGE("CheckerDDR3", "Changing state on bank " + std::to_string(bank.ID())
|
|
+ " command is " + commandToString(command));
|
|
|
|
lastScheduledByCommandAndRank[command][rank.ID()] = sc_time_stamp();
|
|
lastScheduledByCommandAndBank[command][bank.ID()] = sc_time_stamp();
|
|
lastScheduledByCommand[command] = sc_time_stamp();
|
|
|
|
lastCommandOnBus = sc_time_stamp();
|
|
|
|
if (command == Command::ACT)
|
|
{
|
|
if (last4Activates[rank.ID()].size() == 4)
|
|
last4Activates[rank.ID()].pop();
|
|
last4Activates[rank.ID()].push(sc_time_stamp());
|
|
}
|
|
}
|