102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
/*
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* RefreshManager.cpp
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*
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* Created on: Mar 29, 2014
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* Author: robert
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*/
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#include "RefreshManager.h"
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#include "../ControllerCore.h"
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#include "../TimingCalculation.h"
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#include "../../common/Utils.h"
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#include "../TimingCalculation.h"
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using namespace tlm;
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namespace core {
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RefreshManager::RefreshManager(ControllerCore& controller) :
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controller(controller), timing(controller.config.Timings.refreshTimings[Bank(0)]), nextPlannedRefresh(SC_ZERO_TIME)
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{
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setupTransactions();
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planNextRefresh();
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}
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RefreshManager::~RefreshManager()
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{
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}
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bool RefreshManager::hasCollision(const CommandSchedule& schedule)
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{
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return schedule.getStart() < controller.state.getLastCommand(Command::AutoRefresh).getEnd() || schedule.getEnd() > nextPlannedRefresh;
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}
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bool RefreshManager::hasCollision(const ScheduledCommand& command)
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{
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return command.getStart() < controller.state.getLastCommand(Command::AutoRefresh).getEnd() || command.getEnd() > nextPlannedRefresh;
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}
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void RefreshManager::scheduleRefresh(tlm::tlm_generic_payload& payload, sc_time time)
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{
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sc_assert(!isInvalidated(payload, time));
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if (!controller.state.bankStates.allRowBuffersAreClosed())
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{
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ScheduledCommand precharge(Command::PrechargeAll, time, getExecutionTime(Command::PrechargeAll, refreshPayloads[Bank(0)]),
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DramExtension::getExtension(refreshPayloads[Bank(0)]));
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controller.getCommandChecker(Command::PrechargeAll).delayToSatisfyConstraints(precharge);
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sendToAllBanks(precharge);
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}
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ScheduledCommand nextRefresh(Command::AutoRefresh, time, getExecutionTime(Command::AutoRefresh, refreshPayloads[Bank(0)]),
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DramExtension::getExtension(refreshPayloads[Bank(0)]));
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controller.getCommandChecker(Command::AutoRefresh).delayToSatisfyConstraints(nextRefresh);
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sendToAllBanks(nextRefresh);
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for (Bank bank : controller.getBanks())
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{
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DramExtension::getExtension(refreshPayloads[bank]).increaseRow();
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}
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planNextRefresh();
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}
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void RefreshManager::sendToAllBanks(ScheduledCommand& command)
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{
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for (Bank bank : controller.getBanks())
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{
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tlm_generic_payload& payload = refreshPayloads[bank];
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DramExtension extension = DramExtension::getExtension(payload);
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ScheduledCommand cmd(command.getCommand(), command.getStart(), command.getExecutionTime(), extension);
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controller.state.change(cmd);
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controller.wrapper.send(cmd, payload);
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}
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}
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void RefreshManager::planNextRefresh()
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{
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nextPlannedRefresh += timing.tREFI;
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controller.wrapper.send(RefreshTrigger, nextPlannedRefresh, refreshPayloads[Bank(0)]);
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}
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void RefreshManager::reInitialize(Bank bank, sc_time time)
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{
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nextPlannedRefresh = clkAlign(time, Alignment::DOWN);
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planNextRefresh();
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}
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bool core::RefreshManager::isInvalidated(tlm::tlm_generic_payload& payload, sc_time time)
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{
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return nextPlannedRefresh > time;
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}
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void RefreshManager::setupTransactions()
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{
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for (Bank bank : controller.getBanks())
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{
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setUpDummy(refreshPayloads[bank], bank);
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}
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}
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} /* namespace core */
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