Files
DRAMSys/DRAMSys/library/src/controller/checker/CheckerDDR4.cpp
2022-02-15 15:04:20 +01:00

481 lines
26 KiB
C++

/*
* Copyright (c) 2019, Technische Universität Kaiserslautern
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Author: Lukas Steiner
*/
#include <algorithm>
#include "CheckerDDR4.h"
using namespace sc_core;
using namespace tlm;
CheckerDDR4::CheckerDDR4()
{
Configuration &config = Configuration::getInstance();
memSpec = dynamic_cast<const MemSpecDDR4 *>(config.memSpec);
if (memSpec == nullptr)
SC_REPORT_FATAL("CheckerDDR4", "Wrong MemSpec chosen");
lastScheduledByCommandAndBank = std::vector<std::vector<sc_time>>
(Command::numberOfCommands(), std::vector<sc_time>(memSpec->numberOfBanks, sc_max_time()));
lastScheduledByCommandAndBankGroup = std::vector<std::vector<sc_time>>
(Command::numberOfCommands(), std::vector<sc_time>(memSpec->numberOfBankGroups, sc_max_time()));
lastScheduledByCommandAndRank = std::vector<std::vector<sc_time>>
(Command::numberOfCommands(), std::vector<sc_time>(memSpec->numberOfRanks, sc_max_time()));
lastScheduledByCommand = std::vector<sc_time>(Command::numberOfCommands(), sc_max_time());
lastCommandOnBus = sc_max_time();
last4Activates = std::vector<std::queue<sc_time>>(memSpec->numberOfRanks);
tBURST = memSpec->defaultBurstLength / memSpec->dataRate * memSpec->tCK;
tRDWR = memSpec->tRL + tBURST + memSpec->tCK - memSpec->tWL + memSpec->tWPRE;
tRDWR_R = memSpec->tRL + tBURST + memSpec->tRTRS - memSpec->tWL + memSpec->tWPRE;
tWRRD_S = memSpec->tWL + tBURST + memSpec->tWTR_S - memSpec->tAL;
tWRRD_L = memSpec->tWL + tBURST + memSpec->tWTR_L - memSpec->tAL;
tWRRD_R = memSpec->tWL + tBURST + memSpec->tRTRS - memSpec->tRL + memSpec->tRPRE;
tWRPRE = memSpec->tWL + tBURST + memSpec->tWR;
tRDPDEN = memSpec->tRL + tBURST + memSpec->tCK;
tWRPDEN = memSpec->tWL + tBURST + memSpec->tWR;
tWRAPDEN = memSpec->tWL + tBURST + memSpec->tCK + memSpec->tWR;
}
sc_time CheckerDDR4::timeToSatisfyConstraints(Command command, tlm_generic_payload *payload) const
{
Rank rank = DramExtension::getRank(payload);
BankGroup bankGroup = DramExtension::getBankGroup(payload);
Bank bank = DramExtension::getBank(payload);
sc_time lastCommandStart;
sc_time earliestTimeToStart = sc_time_stamp();
if (command == Command::RD || command == Command::RDA)
{
assert(DramExtension::getBurstLength(payload) == 8);
lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRCD - memSpec->tAL);
lastCommandStart = lastScheduledByCommandAndBankGroup[Command::RD][bankGroup.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCD_L);
lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCD_S);
lastCommandStart = lastScheduledByCommand[Command::RD] != lastScheduledByCommandAndRank[Command::RD][rank.ID()] ? lastScheduledByCommand[Command::RD] : sc_max_time();
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tBURST + memSpec->tRTRS);
lastCommandStart = lastScheduledByCommandAndBankGroup[Command::RDA][bankGroup.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCD_L);
lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCD_S);
lastCommandStart = lastScheduledByCommand[Command::RDA] != lastScheduledByCommandAndRank[Command::RDA][rank.ID()] ? lastScheduledByCommand[Command::RDA] : sc_max_time();
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tBURST + memSpec->tRTRS);
if (command == Command::RDA)
{
lastCommandStart = lastScheduledByCommandAndBank[Command::WR][bank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE - memSpec->tRTP - memSpec->tAL);
}
lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WR][bankGroup.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_L);
lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_S);
lastCommandStart = lastScheduledByCommand[Command::WR];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_R);
lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WRA][bankGroup.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_L);
lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_S);
lastCommandStart = lastScheduledByCommand[Command::WRA];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRRD_R);
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXSDLL);
}
else if (command == Command::WR || command == Command::WRA)
{
assert(DramExtension::getBurstLength(payload) == 8);
lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRCD - memSpec->tAL);
lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDWR);
lastCommandStart = lastScheduledByCommand[Command::RD] != lastScheduledByCommandAndRank[Command::RD][rank.ID()] ? lastScheduledByCommand[Command::RD] : sc_max_time();
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDWR_R);
lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDWR);
lastCommandStart = lastScheduledByCommand[Command::RDA] != lastScheduledByCommandAndRank[Command::RDA][rank.ID()] ? lastScheduledByCommand[Command::RDA] : sc_max_time();
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDWR_R);
lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WR][bankGroup.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCD_L);
lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCD_S);
lastCommandStart = lastScheduledByCommand[Command::WR] != lastScheduledByCommandAndRank[Command::WR][rank.ID()] ? lastScheduledByCommand[Command::WR] : sc_max_time();
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tBURST + memSpec->tRTRS);
lastCommandStart = lastScheduledByCommandAndBankGroup[Command::WRA][bankGroup.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCD_L);
lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCCD_S);
lastCommandStart = lastScheduledByCommand[Command::WRA] != lastScheduledByCommandAndRank[Command::WRA][rank.ID()] ? lastScheduledByCommand[Command::WRA] : sc_max_time();
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tBURST + memSpec->tRTRS);
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXSDLL);
}
else if (command == Command::ACT)
{
lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRC);
lastCommandStart = lastScheduledByCommandAndBankGroup[Command::ACT][bankGroup.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRRD_L);
lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRRD_S);
lastCommandStart = lastScheduledByCommandAndBank[Command::RDA][bank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tAL + memSpec->tRTP + memSpec->tRP);
lastCommandStart = lastScheduledByCommandAndBank[Command::WRA][bank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE + memSpec->tRP);
lastCommandStart = lastScheduledByCommandAndBank[Command::PREPB][bank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
lastCommandStart = lastScheduledByCommandAndRank[Command::PREAB][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXP][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
lastCommandStart = lastScheduledByCommandAndRank[Command::REFAB][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);
if (last4Activates[rank.ID()].size() >= 4)
earliestTimeToStart = std::max(earliestTimeToStart, last4Activates[rank.ID()].front() + memSpec->tFAW);
}
else if (command == Command::PREPB)
{
lastCommandStart = lastScheduledByCommandAndBank[Command::ACT][bank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRAS);
lastCommandStart = lastScheduledByCommandAndBank[Command::RD][bank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tAL + memSpec->tRTP);
lastCommandStart = lastScheduledByCommandAndBank[Command::WR][bank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE);
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
}
else if (command == Command::PREAB)
{
lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRAS);
lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tAL + memSpec->tRTP);
lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tAL + memSpec->tRTP);
lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE);
lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE);
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXP);
}
else if (command == Command::REFAB)
{
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 + memSpec->tAL + memSpec->tRTP + memSpec->tRP);
lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPRE + memSpec->tRP);
lastCommandStart = lastScheduledByCommandAndRank[Command::PREPB][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
lastCommandStart = lastScheduledByCommandAndRank[Command::PREAB][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::REFAB][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::PDEA)
{
lastCommandStart = lastScheduledByCommandAndRank[Command::ACT][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tACTPDEN);
lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDPDEN);
lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDPDEN);
lastCommandStart = lastScheduledByCommandAndRank[Command::WR][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRPDEN);
lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRAPDEN);
lastCommandStart = lastScheduledByCommandAndRank[Command::PREPB][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPRPDEN);
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCKE);
}
else if (command == Command::PDXA)
{
lastCommandStart = lastScheduledByCommandAndRank[Command::PDEA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPD);
}
else if (command == Command::PDEP)
{
lastCommandStart = lastScheduledByCommandAndRank[Command::RD][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDPDEN);
lastCommandStart = lastScheduledByCommandAndRank[Command::RDA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tRDPDEN);
lastCommandStart = lastScheduledByCommandAndRank[Command::WRA][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + tWRAPDEN);
lastCommandStart = lastScheduledByCommandAndRank[Command::PREPB][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPRPDEN);
lastCommandStart = lastScheduledByCommandAndRank[Command::PREAB][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPRPDEN);
lastCommandStart = lastScheduledByCommandAndRank[Command::PDXP][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tCKE);
lastCommandStart = lastScheduledByCommandAndRank[Command::REFAB][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tREFPDEN);
lastCommandStart = lastScheduledByCommandAndRank[Command::SREFEX][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tXS);
}
else if (command == Command::PDXP)
{
lastCommandStart = lastScheduledByCommandAndRank[Command::PDEP][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tPD);
}
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::PREPB][rank.ID()];
if (lastCommandStart != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandStart + memSpec->tRP);
lastCommandStart = lastScheduledByCommandAndRank[Command::PREAB][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::REFAB][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("CheckerDDR4", "Unknown command!");
if (lastCommandOnBus != sc_max_time())
earliestTimeToStart = std::max(earliestTimeToStart, lastCommandOnBus + memSpec->tCK);
return earliestTimeToStart;
}
void CheckerDDR4::insert(Command command, tlm_generic_payload *payload)
{
Rank rank = DramExtension::getRank(payload);
BankGroup bankGroup = DramExtension::getBankGroup(payload);
Bank bank = DramExtension::getBank(payload);
PRINTDEBUGMESSAGE("CheckerDDR4", "Changing state on bank " + std::to_string(bank.ID())
+ " command is " + command.toString());
lastScheduledByCommandAndBank[command][bank.ID()] = sc_time_stamp();
lastScheduledByCommandAndBankGroup[command][bankGroup.ID()] = sc_time_stamp();
lastScheduledByCommandAndRank[command][rank.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());
}
}