583 lines
30 KiB
C++
583 lines
30 KiB
C++
/*
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* Copyright (c) 2019, RPTU Kaiserslautern-Landau
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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 "CheckerGDDR5.h"
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#include "DRAMSys/common/DebugManager.h"
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#include <algorithm>
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using namespace sc_core;
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using namespace tlm;
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namespace DRAMSys
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{
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CheckerGDDR5::CheckerGDDR5(const Configuration& config)
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{
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memSpec = dynamic_cast<const MemSpecGDDR5 *>(config.memSpec.get());
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if (memSpec == nullptr)
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SC_REPORT_FATAL("CheckerGDDR5", "Wrong MemSpec chosen");
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lastScheduledByCommandAndBank = std::vector<ControllerVector<Bank, sc_time>>
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(Command::numberOfCommands(), ControllerVector<Bank, sc_time>(memSpec->banksPerChannel, scMaxTime));
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lastScheduledByCommandAndBankGroup = std::vector<ControllerVector<BankGroup, sc_time>>
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(Command::numberOfCommands(),
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ControllerVector<BankGroup, sc_time>(memSpec->bankGroupsPerChannel, scMaxTime));
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lastScheduledByCommandAndRank = std::vector<ControllerVector<Rank, sc_time>>
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(Command::numberOfCommands(), ControllerVector<Rank, sc_time>(memSpec->ranksPerChannel, scMaxTime));
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lastScheduledByCommand = std::vector<sc_time>(Command::numberOfCommands(), scMaxTime);
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lastCommandOnBus = scMaxTime;
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last4Activates = ControllerVector<Rank, std::queue<sc_time>>(memSpec->ranksPerChannel);
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last32Activates = ControllerVector<Rank, std::queue<sc_time>>(memSpec->ranksPerChannel);
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bankwiseRefreshCounter = ControllerVector<Rank, unsigned>(memSpec->ranksPerChannel);
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tBURST = memSpec->defaultBurstLength / memSpec->dataRate * memSpec->tCK;
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tRDSRE = memSpec->tCL + memSpec->tWCK2CKPIN + memSpec->tWCK2CK + memSpec->tWCK2DQO + tBURST;
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tWRSRE = memSpec->tWL + memSpec->tWCK2CKPIN + memSpec->tWCK2CK + memSpec->tWCK2DQI + tBURST;
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tRDWR_R = memSpec->tCL + tBURST + memSpec->tRTRS - memSpec->tWL;
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tWRRD_R = memSpec->tWL + tBURST + memSpec->tRTRS - memSpec->tCL;
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tWRRD_S = memSpec->tWL + tBURST + memSpec->tWTRS;
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tWRRD_L = memSpec->tWL + tBURST + memSpec->tWTRL;
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tWRPRE = memSpec->tWL + tBURST + memSpec->tWR;
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}
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sc_time CheckerGDDR5::timeToSatisfyConstraints(Command command, const tlm_generic_payload& payload) const
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{
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Rank rank = ControllerExtension::getRank(payload);
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BankGroup bankGroup = ControllerExtension::getBankGroup(payload);
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Bank bank = ControllerExtension::getBank(payload);
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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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assert(ControllerExtension::getBurstLength(payload) == 8);
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lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRCDRD);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::RD][bankGroup];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDL);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDS);
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lastCommandStart = lastScheduledByCommand[Command::RD] != lastScheduledByCommandAndRank[Command::RD][rank] ? lastScheduledByCommand[Command::RD] : scMaxTime;
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tBURST + memSpec->tRTRS);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::RDA][bankGroup];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDL);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDS);
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lastCommandStart = lastScheduledByCommand[Command::RDA] != lastScheduledByCommandAndRank[Command::RDA][rank] ? lastScheduledByCommand[Command::RDA] : scMaxTime;
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if (lastCommandStart != scMaxTime)
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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];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE - memSpec->tRTP);
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}
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WR][bankGroup];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_L);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_S);
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lastCommandStart = lastScheduledByCommand[Command::WR] != lastScheduledByCommandAndRank[Command::WR][rank] ? lastScheduledByCommand[Command::WR] : scMaxTime;
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_R);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WRA][bankGroup];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_L);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_S);
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lastCommandStart = lastScheduledByCommand[Command::WRA] != lastScheduledByCommandAndRank[Command::WRA][rank] ? lastScheduledByCommand[Command::WRA] : scMaxTime;
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_R);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXPN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tLK);
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}
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else if (command == Command::WR || command == Command::WRA || command == Command::MWR || command == Command::MWRA)
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{
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assert(ControllerExtension::getBurstLength(payload) == 8);
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lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRCDWR);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTW);
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lastCommandStart = lastScheduledByCommand[Command::RD] != lastScheduledByCommandAndRank[Command::RD][rank] ? lastScheduledByCommand[Command::RD] : scMaxTime;
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDWR_R);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTW);
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lastCommandStart = lastScheduledByCommand[Command::RDA] != lastScheduledByCommandAndRank[Command::RDA][rank] ? lastScheduledByCommand[Command::RDA] : scMaxTime;
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDWR_R);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WR][bankGroup];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDL);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDS);
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lastCommandStart = lastScheduledByCommand[Command::WR] != lastScheduledByCommandAndRank[Command::WR][rank] ? lastScheduledByCommand[Command::WR] : scMaxTime;
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tBURST + memSpec->tRTRS);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WRA][bankGroup];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDL);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDS);
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lastCommandStart = lastScheduledByCommand[Command::WRA] != lastScheduledByCommandAndRank[Command::WRA][rank] ? lastScheduledByCommand[Command::WRA] : scMaxTime;
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tBURST + memSpec->tRTRS);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXPN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tLK);
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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];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRC);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::ACT][bankGroup];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRRDL);
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lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRRDS);
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lastCommandStart = lastScheduledByCommandAndBank[Command::RDA][bank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTP + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndBank[Command::WRA][bank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndBank[Command::PREPB][bank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PREAB][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXPN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXP][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXPN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::REFAB][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFC);
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lastCommandStart = lastScheduledByCommandAndBank[Command::REFPB][bank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFCPB);
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lastCommandStart = lastScheduledByCommandAndRank[Command::REFPB][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRREFD);
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lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXS);
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if (last4Activates[rank].size() >= 4)
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earliestTimeToStart = std::max(earliestTimeToStart, last4Activates[rank].front() + memSpec->tFAW);
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if (last32Activates[rank].size() >= 32)
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earliestTimeToStart = std::max(earliestTimeToStart, last32Activates[rank].front() + memSpec->t32AW);
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}
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else if (command == Command::PREPB)
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{
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lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRAS);
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lastCommandStart = lastScheduledByCommandAndBank[Command::RD][bank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTP);
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lastCommandStart = lastScheduledByCommandAndBank[Command::WR][bank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PREPB][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPPD);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXPN);
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}
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else if (command == Command::PREAB)
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{
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lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRAS);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PREPB][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPPD);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXPN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::REFPB][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFCPB);
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}
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else if (command == Command::REFAB)
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{
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lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRC);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTP + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PREPB][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PREAB][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PDXP][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXPN);
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lastCommandStart = lastScheduledByCommandAndRank[Command::REFAB][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFC);
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lastCommandStart = lastScheduledByCommandAndRank[Command::REFPB][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFCPB);
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lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXS);
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}
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else if (command == Command::REFPB)
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{
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lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRC);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::ACT][bankGroup];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRRDL);
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lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank];
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if (lastCommandStart != scMaxTime)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRRDS);
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lastCommandStart = lastScheduledByCommandAndBank[Command::RDA][bank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTP + memSpec->tRP);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndBank[Command::WRA][bank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE + memSpec->tRP);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndBank[Command::PREPB][bank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PREAB][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXPN);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXP][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXPN);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::REFAB][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFC);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndBank[Command::REFPB][bank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFCPB);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::REFPB][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
{
|
|
if (bankwiseRefreshCounter[rank] == 0)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFCPB);
|
|
else
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRREFD);
|
|
}
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXS);
|
|
|
|
if (last4Activates[rank].size() >= 4)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, last4Activates[rank].front() + memSpec->tFAW);
|
|
|
|
if (last32Activates[rank].size() >= 32)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, last32Activates[rank].front() + memSpec->t32AW);
|
|
}
|
|
else if (command == Command::PDEA)
|
|
{
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDSRE);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDSRE);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRSRE);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRSRE);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXPN);
|
|
}
|
|
else if (command == Command::PDXA)
|
|
{
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PDEA][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPD);
|
|
}
|
|
else if (command == Command::PDEP)
|
|
{
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDSRE);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDSRE);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRSRE);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXP][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXPN);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXS);
|
|
}
|
|
else if (command == Command::PDXP)
|
|
{
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PDEP][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPD);
|
|
}
|
|
else if (command == Command::SREFEN)
|
|
{
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRC);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDSRE);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + std::max(memSpec->tRTP + memSpec->tRP, tRDSRE));
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE + memSpec->tRP);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PREPB][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PREAB][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXP][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXPN);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::REFAB][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFC);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::REFPB][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFCPB);
|
|
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXS);
|
|
}
|
|
else if (command == Command::SREFEX)
|
|
{
|
|
lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEN][rank];
|
|
if (lastCommandStart != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCKE);
|
|
}
|
|
else
|
|
SC_REPORT_FATAL("CheckerGDDR5", "Unknown command!");
|
|
|
|
// Check if command bus is free
|
|
if (lastCommandOnBus != scMaxTime)
|
|
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandOnBus + memSpec->tCK);
|
|
|
|
return earliestTimeToStart;
|
|
}
|
|
|
|
void CheckerGDDR5::insert(Command command, const tlm_generic_payload& payload)
|
|
{
|
|
Rank rank = ControllerExtension::getRank(payload);
|
|
BankGroup bankGroup = ControllerExtension::getBankGroup(payload);
|
|
Bank bank = ControllerExtension::getBank(payload);
|
|
|
|
// Hack: Convert MWR to WR and MWRA to WRA
|
|
if (command == Command::MWR)
|
|
command = Command::WR;
|
|
else if (command == Command::MWRA)
|
|
command = Command::WRA;
|
|
|
|
PRINTDEBUGMESSAGE("CheckerGDDR5", "Changing state on bank " + std::to_string(static_cast<std::size_t>(bank))
|
|
+ " command is " + command.toString());
|
|
|
|
lastScheduledByCommandAndBank[command][bank] = sc_time_stamp();
|
|
lastScheduledByCommandAndBankGroup[command][bankGroup] = sc_time_stamp();
|
|
lastScheduledByCommandAndRank[command][rank] = sc_time_stamp();
|
|
lastScheduledByCommand[command] = sc_time_stamp();
|
|
lastCommandOnBus = sc_time_stamp();
|
|
|
|
if (command == Command::ACT || command == Command::REFPB)
|
|
{
|
|
if (last4Activates[rank].size() == 4)
|
|
last4Activates[rank].pop();
|
|
last4Activates[rank].push(lastCommandOnBus);
|
|
|
|
if (last32Activates[rank].size() == 32)
|
|
last32Activates[rank].pop();
|
|
last32Activates[rank].push(lastCommandOnBus);
|
|
}
|
|
|
|
if (command == Command::REFPB)
|
|
bankwiseRefreshCounter[rank] = (bankwiseRefreshCounter[rank] + 1) % memSpec->banksPerRank;
|
|
}
|
|
|
|
} // namespace DRAMSys
|