395 lines
20 KiB
C++
395 lines
20 KiB
C++
/*
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* Copyright (c) 2019, University of 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 "CheckerGDDR5X.h"
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CheckerGDDR5X::CheckerGDDR5X()
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{
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Configuration &config = Configuration::getInstance();
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memSpec = dynamic_cast<MemSpecGDDR5X *>(config.memSpec);
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if (memSpec == nullptr)
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SC_REPORT_FATAL("CheckerGDDR5X", "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));
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lastScheduledByCommandAndBankGroup = std::vector<std::vector<sc_time>>
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(numberOfCommands(), std::vector<sc_time>(memSpec->NumberOfBankGroups));
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lastScheduledByCommandAndRank = std::vector<std::vector<sc_time>>
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(numberOfCommands(), std::vector<sc_time>(memSpec->NumberOfRanks));
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lastScheduledByCommand = std::vector<sc_time>(numberOfCommands());
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last4Activates = std::vector<std::queue<sc_time>>(memSpec->NumberOfRanks);
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last32Activates = std::vector<std::queue<sc_time>>(memSpec->NumberOfRanks);
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burstClocks = (memSpec->BurstLength / memSpec->DataRate) * memSpec->clk;
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}
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sc_time CheckerGDDR5X::delayToSatisfyConstraints(Command command, Rank rank, BankGroup bankgroup, Bank bank) 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::ACT)
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{
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lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRC);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::ACT][bankgroup.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRRDL);
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lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRRDS);
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lastCommandStart = lastScheduledByCommandAndBank[Command::RDA][bank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTP + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndBank[Command::WRA][bank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWR + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndBank[Command::PRE][bank.ID()];
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if (lastCommandStart != SC_ZERO_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_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::REFA][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFC);
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lastCommandStart = lastScheduledByCommandAndBank[Command::REFB][bank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFCPB);
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lastCommandStart = lastScheduledByCommandAndRank[Command::REFB][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRREFD);
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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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if (last32Activates[rank.ID()].size() == 32)
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earliestTimeToStart = std::max(earliestTimeToStart, last32Activates[rank.ID()].front() + memSpec->t32AW);
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandOnBus + memSpec->clk);
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}
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else if (command == Command::RD)
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{
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lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank.ID()];
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRCDRD);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::RD][bankgroup.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDL);
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lastCommandStart = lastScheduledByCommand[Command::RD];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDS);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::RDA][bankgroup.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDL);
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lastCommandStart = lastScheduledByCommand[Command::RDA];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDS);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WR][bankgroup.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWTRL);
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lastCommandStart = lastScheduledByCommand[Command::WR];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWTRS);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WRA][bankgroup.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWTRL);
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lastCommandStart = lastScheduledByCommand[Command::WRA];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWTRS);
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandOnBus + memSpec->clk);
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}
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else if (command == Command::RDA)
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{
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lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank.ID()];
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRCDRD);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::RD][bankgroup.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDL);
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lastCommandStart = lastScheduledByCommand[Command::RD];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDS);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::RDA][bankgroup.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDL);
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lastCommandStart = lastScheduledByCommand[Command::RDA];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDS);
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lastCommandStart = lastScheduledByCommandAndBank[Command::WR][bank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + std::max(memSpec->tWR - memSpec->tRTP, memSpec->tWTRL));
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WR][bankgroup.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWTRL);
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lastCommandStart = lastScheduledByCommand[Command::WR];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWTRS);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WRA][bankgroup.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWTRL);
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lastCommandStart = lastScheduledByCommand[Command::WRA];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWTRS);
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandOnBus + memSpec->clk);
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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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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRCDWR);
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lastCommandStart = lastScheduledByCommand[Command::RD];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTW);
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lastCommandStart = lastScheduledByCommand[Command::RDA];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTW);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WR][bankgroup.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDL);
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lastCommandStart = lastScheduledByCommand[Command::WR];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDS);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WRA][bankgroup.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDL);
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lastCommandStart = lastScheduledByCommand[Command::WRA];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCDS);
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandOnBus + memSpec->clk);
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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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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRAS);
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lastCommandStart = lastScheduledByCommandAndBank[Command::RD][bank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTP);
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lastCommandStart = lastScheduledByCommandAndBank[Command::WR][bank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWR);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PRE][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPPD);
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandOnBus + memSpec->clk);
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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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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRAS);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWR);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWR);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PRE][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPPD);
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandOnBus + memSpec->clk);
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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_ZERO_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_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTP + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWR + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::PRE][rank.ID()];
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if (lastCommandStart != SC_ZERO_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_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndRank[Command::REFA][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFC);
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandOnBus + memSpec->clk);
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}
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else if (command == Command::REFB)
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{
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lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRC);
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lastCommandStart = lastScheduledByCommandAndBankGroup[Command::ACT][bankgroup.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRRDL);
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lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRRDS);
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lastCommandStart = lastScheduledByCommandAndBank[Command::RDA][bank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRTP + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndBank[Command::WRA][bank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart
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+ memSpec->tWL + burstClocks + memSpec->tWR + memSpec->tRP);
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lastCommandStart = lastScheduledByCommandAndBank[Command::PRE][bank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
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// lastCommandStart = lastScheduledByCommandAndBank[Command::REFB][bank.ID()];
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// if (lastCommandStart != SC_ZERO_TIME)
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// earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFCSB);
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lastCommandStart = lastScheduledByCommandAndRank[Command::REFB][rank.ID()];
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if (lastCommandStart != SC_ZERO_TIME)
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{
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if (bankwiseRefreshCounter == 0)
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRFCPB);
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else
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRREFD);
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}
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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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if (last32Activates[rank.ID()].size() == 32)
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earliestTimeToStart = std::max(earliestTimeToStart, last32Activates[rank.ID()].front() + memSpec->t32AW);
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earliestTimeToStart = std::max(earliestTimeToStart, lastCommandOnBus + memSpec->clk);
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}
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else
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{
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reportFatal("CheckerGDDR5X", "Unknown command!");
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}
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return (earliestTimeToStart - sc_time_stamp());
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}
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void CheckerGDDR5X::insert(Command command, Rank rank, BankGroup bankgroup, Bank bank)
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{
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PRINTDEBUGMESSAGE("CheckerGDDR5X", "Changing state on bank " + bank.ID()
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+ " command is " + commandToString(command));
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lastScheduledByCommandAndBank[command][bank.ID()] = sc_time_stamp();
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lastScheduledByCommandAndBankGroup[command][bankgroup.ID()] = sc_time_stamp();
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lastScheduledByCommandAndRank[command][rank.ID()] = sc_time_stamp();
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lastScheduledByCommand[command] = sc_time_stamp();
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lastCommandOnBus = sc_time_stamp();
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if (command == Command::ACT || command == Command::REFB)
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{
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if (last4Activates[rank.ID()].size() == 4)
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last4Activates[rank.ID()].pop();
|
|
last4Activates[rank.ID()].push(lastCommandOnBus);
|
|
|
|
if (last32Activates[rank.ID()].size() == 32)
|
|
last32Activates[rank.ID()].pop();
|
|
last32Activates[rank.ID()].push(lastCommandOnBus);
|
|
}
|
|
|
|
if (command == Command::REFB)
|
|
bankwiseRefreshCounter = (bankwiseRefreshCounter + 1) % memSpec->BanksPerRank;
|
|
}
|