..

dram/.project

@@ -3,7 +3,6 @@
 	<name>dram</name>
 	<comment></comment>
 	<projects>
-		<project>common</project>
 	</projects>
 	<buildSpec>
 		<buildCommand>

dram/src/core/CommandBus.cpp

@@ -10,150 +10,112 @@
 
 namespace core {
 
-void CommandBus::schedule(const CommandSchedule& schedule)
+void CommandBus::schedule(ScheduledCommand& command)
 {
-	const std::vector<ScheduledCommand>& commands = schedule.getScheduledCommands();
 
-	for (std::vector<ScheduledCommand>::const_iterator it = commands.begin(); it != commands.end();
-			++it)
-	{
-		scheduleCommand(*it);
-	}
-}
-
-void CommandBus::scheduleCommand(const ScheduledCommand& command)
-{
-	assert(!pendingBusCommands.count(command.getStart()));
+	scheduleOnBus(command);
 
+	//TODO state change in state!!
 	changeControllerState(command);
-	pendingBusCommands.insert(command.getStart());
+	state.pendingBusCommands.insert(command.getStart());
 
-	notifyAllCheckersAboutScheduledCommand(command);
+	state.lastCommandsOnBus[command.getCommand()][command.getBank()] = command;
+	state.lastCommandsOnBus[command.getCommand()][command.getBank()].invalidateTransaction();
 
-	wrapper.sendCommand(command.getStart(), command.getTransaction(), command.getCommand());
-	lastCommandsOnBus[command.getCommand()][command.getBank()] = command;
-	lastCommandsOnBus[command.getCommand()][command.getBank()].invalidateTransaction();
-}
-
-void CommandBus::notifyAllCheckersAboutScheduledCommand(const ScheduledCommand& command)
-{
-	for (std::vector<ICommandChecker*>::iterator it = checker.begin(); it != checker.end(); ++it)
+	if(command.getCommand() == Activate)
 	{
-		(*it)->notifyAboutScheduledCommand(command);
+		state.nActivateWindow.put(command.getStart());
 	}
 }
 
-void CommandBus::scheduleTrigger(const Trigger command, sc_time time)
+void CommandBus::scheduleOnBus(ScheduledCommand& command)
 {
-	wrapper.sendTrigger(time, command);
-}
+	//TODO write nicer
+	sc_time newStart = command.getStart();
+	assert(isClkAligned(newStart, config.Timings.clk));
+	std::set<sc_time>::iterator it = state.pendingBusCommands.begin();
 
-ScheduledCommand CommandBus::getLastCommand(Command command, Bank bank)
-{
-	return lastCommandsOnBus[command][bank];
-}
-
-ScheduledCommand CommandBus::getLastCommand(Command command)
-{
-	ScheduledCommand max;
-	for (unsigned int i = 0; i < config.numberOfBanks; ++i)
+	while (it != state.pendingBusCommands.end() && *it <= newStart)
 	{
-		const ScheduledCommand& current = getLastCommand(command, Bank(i));
-		if (current.getStart() > max.getStart())
-			max = current;
+		if (*it == newStart)
+			newStart += config.Timings.clk;
+		++it;
 	}
-	return max;
+	command.setStart(newStart);
 }
 
-ScheduledCommand CommandBus::getLastCommand(Bank bank)
+void CommandBus::send(const Trigger trigger, sc_time time) const
 {
-	ScheduledCommand lastCommand;
-	for(std::map<Command, std::map<Bank, ScheduledCommand> >::iterator it = lastCommandsOnBus.begin(); it != lastCommandsOnBus.end(); ++it)
-	{
-		ScheduledCommand& current = lastCommandsOnBus[it->first][bank];
-		if(current.getStart() > lastCommand.getStart())
-			lastCommand = current;
-	}
-	return lastCommand;
+	wrapperConnector.send(trigger, time);
 }
 
-bool CommandBus::notYetScheduled(Command command) const
-{
-return (lastCommandsOnBus.count(command) == 0);
-}
+ void CommandBus::send(const ScheduledCommand& command) const
+ {
+	 wrapperConnector.send(command);
+ }
 
-bool CommandBus::notYetScheduled(Command command, Bank bank) const
-{
-return (notYetScheduled(command) || lastCommandsOnBus.find(command)->second.count(bank) == 0);
-}
-
-sc_time CommandBus::getEarliestStartTime(const ScheduledCommand& command) const
-{
-sc_time newStart = command.getStart();
-assert(isClkAligned(newStart, config.Timings.clk));
-std::set<sc_time>::iterator it = pendingBusCommands.begin();
-while (it != pendingBusCommands.end() && *it <= newStart)
-{
-	if (*it == newStart)
-		newStart += config.Timings.clk;
-	++it;
-}
-return newStart;
-}
+ void CommandBus::send(const CommandSchedule& schedule) const
+ {
+	 for(const ScheduledCommand& cmd : schedule.getScheduledCommands())
+	 {
+		 send(cmd);
+	 }
+ }
 
 void CommandBus::cleanUpBus(sc_time currentTime)
 {
-pendingBusCommands.erase(pendingBusCommands.begin(), pendingBusCommands.lower_bound(currentTime));
+	state.pendingBusCommands.erase(state.pendingBusCommands.begin(),
+			state.pendingBusCommands.lower_bound(currentTime));
 }
 
 void CommandBus::changeControllerState(const ScheduledCommand& command)
 {
-switch (command.getCommand())
-{
-	case Refresh:
-		refresh(command);
-		break;
-	case Activate:
-		activate(command);
-		break;
-	case Precharge:
-		precharge(command);
-	default:
-		break;
-}
+	switch (command.getCommand())
+	{
+		case Refresh:
+			refresh(command);
+			break;
+		case Activate:
+			activate(command);
+			break;
+		case Precharge:
+			precharge(command);
+		default:
+			break;
+	}
 }
 
 void CommandBus::refresh(const ScheduledCommand& command)
 {
-if (config.RefreshBankwise)
-{
-	state.bankStates.closeRowBuffer(command.getBank());
-}
-else
-{
-	state.bankStates.closeAllRowBuffers();
-}
+	if (config.RefreshBankwise)
+	{
+		state.bankStates.closeRowBuffer(command.getBank());
+	}
+	else
+	{
+		state.bankStates.closeAllRowBuffers();
+	}
 
 }
 
 void CommandBus::precharge(const ScheduledCommand& command)
 {
-if (command.getCommand() == Precharge)
-{
-	state.bankStates.closeRowBuffer(command.getBank());
-}
-else if (command.getCommand() == PrechargeAll)
-{
-	state.bankStates.closeAllRowBuffers();
-}
+	if (command.getCommand() == Precharge)
+	{
+		state.bankStates.closeRowBuffer(command.getBank());
+	}
+	else if (command.getCommand() == PrechargeAll)
+	{
+		state.bankStates.closeAllRowBuffers();
+	}
 }
 
 void CommandBus::activate(const ScheduledCommand& command)
 {
-if (command.getCommand() == Activate)
-{
-	state.bankStates.openRowInRowBuffer(command.getBank(), command.getRow());
-}
+	if (command.getCommand() == Activate)
+	{
+		state.bankStates.openRowInRowBuffer(command.getBank(), command.getRow());
+	}
 }
 
 } /* namespace controller */

dram/src/core/CommandBus.h

@@ -10,9 +10,8 @@
 
 #include <map>
 #include <set>
-#include "../tlm/IControllerWrapper.h"
 #include "ControllerState.h"
-#include "IInternalScheduler.h"
+#include "IWrapperConnector.h"
 #include "Configuration.h"
 #include "scheduling/CommandSchedule.h"
 #include "scheduling/Trigger.h"
@@ -20,49 +19,36 @@
 
 namespace core {
 
-class CommandBus: public IInternalScheduler
+class CommandBus
 {
 public:
-	CommandBus(const Configuration& config, core::ControllerState& state,
-			std::vector<ICommandChecker*>& checker, IControllerWrapper& wrapper):
-				wrapper(wrapper), config(config), state(state), checker(checker)
+	CommandBus(IWrapperConnector& wrapperConnector, const Configuration& config, ControllerState& state):
+	wrapperConnector(wrapperConnector), config(config), state(state)
 	{
 	}
-	virtual void schedule(const CommandSchedule& schedule); //TODO add to interface
-	virtual void scheduleCommand(const ScheduledCommand& command);
-	virtual void scheduleTrigger(const Trigger trigger, sc_time time);
+	~CommandBus(){}
 
+	void schedule(ScheduledCommand& command);
+
+	void send(const ScheduledCommand& command) const;
+	void send(const Trigger trigger, sc_time time) const;
+	void send(const CommandSchedule& schedule) const;
 
 	void cleanUpBus(sc_time currentTime);
 
-	ScheduledCommand getLastCommand(Command command, Bank bank); //TODO simple way to make it const?
-	ScheduledCommand getLastCommand(Command command);
-	ScheduledCommand getLastCommand(Bank bank);
-
-	bool notYetScheduled(Command command) const;
-	bool notYetScheduled(Command command, Bank bank) const;
-	sc_time getEarliestStartTime(const ScheduledCommand& command) const;
-
-	const std::set<sc_time>& getPendingBusCommands() const
-	{
-		return pendingBusCommands;
-	}
-
 private:
-	IControllerWrapper& wrapper;
+	IWrapperConnector& wrapperConnector;
 	const Configuration& config;
 	core::ControllerState& state;
-	std::vector<ICommandChecker*>& checker;
 
-	std::map<Command, std::map<Bank, ScheduledCommand> > lastCommandsOnBus;
-	std::set<sc_time> pendingBusCommands;
-
-	void notifyAllCheckersAboutScheduledCommand(const ScheduledCommand& command);
 	void changeControllerState(const ScheduledCommand& command);
 	void refresh(const ScheduledCommand& command);
 	void precharge(const ScheduledCommand& command);
 	void activate(const ScheduledCommand& command);
+
+	void scheduleOnBus(ScheduledCommand& command);
 };
+
 }
 
 #endif /* INTERNALSCHEDULER_H_ */

dram/src/core/Controller.cpp

@@ -14,24 +14,34 @@
 
 namespace core {
 
-DramController::DramController(IControllerWrapper& wrapper):
-		 config(),state(config.numberOfBanks), commandSequenceGenerator(state), commandChecker(),allCommandChecker(),commandSequenceScheduler(
-				commandChecker), bus(config, state, allCommandChecker, wrapper), refreshManager(config.Timings.refreshTimings[0], bus)
+DramController::DramController(IWrapperConnector& wrapperConnector):
+		 config(),state(config.numberOfBanks, config.nActivate), savedState(config.numberOfBanks, config.nActivate), commandSequenceGenerator(state), commandChecker(), commandSequenceScheduler(
+				bus, commandChecker), bus(wrapperConnector, config, state), refreshManager(bus, config.Timings.refreshTimings[0])
 {
-	addCommandChecker(Activate, new ActivateChecker(config, bus));
-	addCommandChecker(Precharge, new PrechargeChecker(config, bus));
-	addCommandChecker(Read, new ReadChecker(config, bus));
-	addCommandChecker(Write, new WriteChecker(config, bus));
+	commandChecker[Activate] = new ActivateChecker(config, state);
+
+	commandChecker[Precharge] = new PrechargeChecker(config, state);
+	commandChecker[Read] = new ReadChecker(config, state);
+	commandChecker[Write] = new WriteChecker(config, state);
 }
 
 
 DramController::~DramController()
 {
-	for (std::vector<ICommandChecker*>::iterator it = allCommandChecker.begin(); it != allCommandChecker.end();++it)
-	{
-		delete *it;
-	}
+	delete commandChecker[Activate];
+	delete commandChecker[Precharge];
+	delete commandChecker[Read];
+	delete commandChecker[Write];
+}
 
+void DramController::saveState()
+{
+	savedState = state;
+}
+
+void DramController::resetState()
+{
+	state = savedState;
 }
 
 void DramController::scheduleRefresh(sc_time time)
@@ -39,41 +49,43 @@ void DramController::scheduleRefresh(sc_time time)
 	refreshManager.scheduleRefresh(time);
 }
 
-void DramController::addCommandChecker(Command command, ICommandChecker* checker)
+void DramController::schedule(sc_time start, tlm::tlm_generic_payload& payload)
 {
-	commandChecker[command] = checker;
-	allCommandChecker.push_back(checker);
-}
+	bus.cleanUpBus(start);
 
-
-void DramController::schedule(sc_time currentTime, tlm::tlm_generic_payload& payload)
-{
-	bus.cleanUpBus(currentTime);
+	start = clkAlign(start, config.Timings.clk);
 	payload.set_streaming_width(config.burstlength);
 
+	saveState();
+
 	CommandSequence sequence = commandSequenceGenerator.generateCommandSequence(
 			payload);
-	CommandSchedule schedule = commandSequenceScheduler.prepareSchedule(currentTime,
-			payload, sequence);
+	CommandSchedule schedule = commandSequenceScheduler.schedule(sequence, start, payload);
+
+	//commandbuschecker (schedule)
 
 	while (refreshManager.hasCollision(schedule))
 	{
-		refreshManager.scheduleRefresh(currentTime);
+		resetState();
+		refreshManager.scheduleRefresh(start);
+		saveState();
+
+
 		sequence = commandSequenceGenerator.generateCommandSequence(payload);
-		schedule = commandSequenceScheduler.prepareSchedule(currentTime, payload,
-				sequence);
+		schedule = commandSequenceScheduler.schedule(sequence, start, payload);
 		assert(schedule.getExecutionTime() < config.Timings.refreshTimings[0].tREFI); //TODO make nice
 	}
 
-	bus.schedule(schedule);
+	bus.send(schedule);
 }
 
-const ICommandChecker& DramController::getChecker(Command command) const
+
+/*const ICommandChecker& DramController::getChecker(Command command) const
 {
 	std::map<Command, ICommandChecker*>::const_iterator result = commandChecker.find(command);
 	assert(result != commandChecker.end());
 	return *(result->second);
-}
+}*/
 
 } /* namespace controller */
 

dram/src/core/Controller.h

@@ -10,7 +10,7 @@
 
 #include <tlm.h>
 #include <map>
-#include "../tlm/IControllerWrapper.h"
+#include "IWrapperConnector.h"
 #include "CommandBus.h"
 #include "Configuration.h"
 #include "powerdown/PowerDownManager.h"
@@ -24,24 +24,29 @@ namespace core {
 class DramController
 {
 public:
-	DramController(IControllerWrapper& wrapper);
+	DramController(IWrapperConnector& wrapper);
 	virtual ~DramController() ;
 
-	void schedule(sc_time currentTime, tlm::tlm_generic_payload& externalTransaction);
+	void schedule(sc_time currentTime, tlm::tlm_generic_payload& payload);
 	void scheduleRefresh(sc_time time);
 	const ICommandChecker& getChecker(Command command) const;
 	Configuration config;
 
+	void saveState();
+	void resetState();
+
 private:
 	ControllerState state;
+	ControllerState savedState;
+
 	CommandSequenceGenerator commandSequenceGenerator;
 	std::map<Command, ICommandChecker*> commandChecker;
-	std::vector<ICommandChecker*> allCommandChecker;
 	CommandSequenceScheduler commandSequenceScheduler;
-	//PowerDownManager powerDownManager;
 	CommandBus bus;
 	RefreshManager refreshManager;
 
+	//std::vector<ICommandChecker*> allCommandChecker;
+	//PowerDownManager powerDownManager;
 
 	void addCommandChecker(Command command, ICommandChecker* checker);
 };

dram/src/core/ControllerState.cpp

@@ -9,13 +9,35 @@
 
 namespace core {
 
-ControllerState::ControllerState(unsigned int numberOfBanks) : bankStates(numberOfBanks)
+const ScheduledCommand ControllerState::getLastCommand(Command command, Bank bank) //TODO const reference? and make const
 {
-
+	return lastCommandsOnBus[command][bank];
 }
 
-ControllerState::~ControllerState() {
-	// TODO Auto-generated destructor stub
+const ScheduledCommand ControllerState::getLastCommand(Command command)
+{
+	ScheduledCommand max;
+
+	for (unsigned int i = 0; i < bankStates.getNumberOfBanks(); ++i)
+	{
+		ScheduledCommand current = getLastCommand(command, Bank(i));
+		if (current.getStart() > max.getStart())
+			max = current;
+	}
+	return max;
+}
+
+const ScheduledCommand ControllerState::getLastCommand(Bank bank)
+{
+	ScheduledCommand lastCommand;
+	for (std::map<Command, std::map<Bank, ScheduledCommand> >::iterator it =
+			lastCommandsOnBus.begin(); it != lastCommandsOnBus.end(); ++it)
+	{
+		ScheduledCommand& current = lastCommandsOnBus[it->first][bank];
+		if (current.getStart() > lastCommand.getStart())
+			lastCommand = current;
+	}
+	return lastCommand;
 }
 
 } /* namespace controller */

dram/src/core/ControllerState.h

@@ -8,16 +8,33 @@
 #ifndef CONTROLLER_STATE_H_
 #define CONTROLLER_STATE_H_
 
+#include <systemc.h>
 #include "common/BankStates.h"
+#include "utils/RingBuffer.h"
+#include "scheduling/ScheduledCommand.h"
+#include <map>
+#include <set>
+#include <vector>
 
 namespace core {
 
 class ControllerState {
 public:
-	ControllerState(unsigned int numberOfBanks);
-	virtual ~ControllerState();
+	ControllerState(unsigned int numberOfBanks, unsigned int nActivates) : bankStates(numberOfBanks), nActivateWindow(nActivates){}
+	virtual ~ControllerState(){}
+
+	const ScheduledCommand getLastCommand(Command command, Bank bank);
+	const ScheduledCommand getLastCommand(Command command);
+	const ScheduledCommand getLastCommand(Bank bank);
 
 	BankStates bankStates;
+
+	RingBuffer<sc_time> nActivateWindow;
+	std::vector<sc_time> nACT;
+	std::map<Command, std::map<Bank, ScheduledCommand> > lastCommandsOnBus;
+	std::set<sc_time> pendingBusCommands;
+private:
+
 };
 
 } /* namespace controller */

dram/src/core/IWrapperConnector.h

@@ -10,16 +10,19 @@
 
 #include <systemc.h>
 #include "scheduling/ScheduledCommand.h"
+#include "scheduling/Trigger.h"
 
 namespace core
 {
-class IInternalScheduler
+
+class IWrapperConnector
 {
 public:
-	virtual ~IInternalScheduler() {}
-	virtual void scheduleCommand(const core::ScheduledCommand& command) = 0;
-	virtual void scheduleTrigger(const core::Trigger trigger, sc_time time) = 0;
+	virtual ~IWrapperConnector() {}
+	virtual void send(const core::ScheduledCommand& command) = 0;
+	virtual void send(core::Trigger trigger, sc_time time) = 0;
 };
+
 }
 
 #endif /* IINTERNALSCHEDULER_H_ */

dram/src/core/TimingConfiguration.h

@@ -24,14 +24,17 @@ struct TimingConfiguration
 {
 	TimingConfiguration(unsigned int numberOfBanks)
 	{
+
+		clk = sc_time(6.0, SC_NS); // 166MHz
+
 		for (unsigned int i = 0; i < numberOfBanks; ++i)
 		{
 			sc_time tRFC = 18*clk;
 			sc_time tREFI = sc_time(15.6, SC_US); //TODO align
+			//tREFI = sc_time(301268, SC_NS);
 			refreshTimings.push_back(RefreshTiming(tRFC, tREFI));
 		}
 
-		clk = sc_time(6.0, SC_NS); // 166MHz
 
 		tRP		= 3*clk;		//precharge-time (pre -> act same bank)
 		tRAS	= 6*clk;		//active-time (act -> pre same bank)
@@ -42,7 +45,7 @@ struct TimingConfiguration
 
 		tRL = 3*clk; //read latency (read command start to data strobe)
 
-		tTAW = clkAlign(sc_time(50, SC_NS), clk); //two activate window
+		tTAW = clkAlign(sc_time(50, SC_NS), clk, DOWN); //two activate window
 	}
 
 	sc_time clk;

dram/src/core/refresh/BankwiseRefreshManager.cpp

@@ -11,14 +11,13 @@ using namespace std;
 
 namespace core {
 
-BankwiseRefreshManager::BankwiseRefreshManager(vector<RefreshTiming> refreshTimings,
-		IInternalScheduler& internalScheduler)
+BankwiseRefreshManager::BankwiseRefreshManager(CommandBus& bus, vector<RefreshTiming> refreshTimings)
 {
 	assert(!refreshTimings.empty());
 
 	for (unsigned int i = 0; i < refreshTimings.size(); ++i)
 	{
-		RefreshManager* manager = new RefreshManager(refreshTimings.at(i), internalScheduler, Bank(i));
+		RefreshManager* manager = new RefreshManager(bus, refreshTimings.at(i), Bank(i));
 		refreshManagerForBanks.push_back(manager);
 	}
 }

dram/src/core/refresh/BankwiseRefreshManager.h

@@ -17,8 +17,7 @@ namespace core {
 class BankwiseRefreshManager : public IRefreshManager
 {
 public:
-	BankwiseRefreshManager(std::vector<RefreshTiming> refreshTimings,
-			IInternalScheduler& internalScheduler);
+	BankwiseRefreshManager(CommandBus& bus, std::vector<RefreshTiming> refreshTimings);
 	virtual ~BankwiseRefreshManager();
 
 	virtual bool hasCollision(const CommandSchedule& schedule);

dram/src/core/refresh/RefreshManager.cpp

@@ -12,19 +12,20 @@
 
 namespace core {
 
-RefreshManager::RefreshManager(const RefreshTiming& refreshTiming,
-		IInternalScheduler& internalScheduler) :
-		refreshTiming(refreshTiming), internalScheduler(internalScheduler)
+RefreshManager::RefreshManager(CommandBus& bus, const RefreshTiming& refreshTiming) : bus(bus),
+		refreshTiming(refreshTiming)
 {
 	setupTransaction(refreshTransaction, Bank(0));
 	nextPlannedRefresh = new ScheduledCommand(refreshTransaction, Refresh, SC_ZERO_TIME,
 			refreshTiming.tRFC);
+	assert(refreshTiming.tRFC > SC_ZERO_TIME);
+	assert(nextPlannedRefresh->getExecutionTime()>SC_ZERO_TIME);
+
 	planNextRefresh(*nextPlannedRefresh);
 }
 
-RefreshManager::RefreshManager(const RefreshTiming& refreshTiming,
-		IInternalScheduler& internalScheduler, Bank bank) :
-		refreshTiming(refreshTiming), internalScheduler(internalScheduler)
+RefreshManager::RefreshManager(CommandBus& bus, const RefreshTiming& refreshTiming,
+		Bank bank) : bus(bus), refreshTiming(refreshTiming)
 {
 	setupTransaction(refreshTransaction, bank);
 	nextPlannedRefresh = new ScheduledCommand(refreshTransaction, Refresh, SC_ZERO_TIME,
@@ -63,14 +64,15 @@ void RefreshManager::scheduleRefresh(sc_time time)
 
 void RefreshManager::scheduleRefresh(ScheduledCommand& refresh)
 {
-	internalScheduler.scheduleCommand(refresh);
+	bus.schedule(refresh);
+	bus.send(refresh);
 	planNextRefresh(refresh);
 }
 
 void RefreshManager::planNextRefresh(ScheduledCommand& refresh) //TODO nicer to return the reference ?
 {
 	refresh.delayStart(refreshTiming.tREFI);
-	internalScheduler.scheduleTrigger(RefreshTrigger, refresh.getStart());
+	bus.send(RefreshTrigger, refresh.getStart());
 }
 
 void RefreshManager::setupTransaction(tlm::tlm_generic_payload& transaction, Bank bank)

dram/src/core/refresh/RefreshManager.h

@@ -16,16 +16,16 @@ namespace core {
 class RefreshManager : public IRefreshManager
 {
 public:
-	RefreshManager(const RefreshTiming& refreshTiming, IInternalScheduler& internalScheduler);
-	RefreshManager(const RefreshTiming& refreshTiming, IInternalScheduler& internalScheduler, Bank bank);
+	RefreshManager(CommandBus& bus, const RefreshTiming& refreshTiming);
+	RefreshManager(CommandBus& bus, const RefreshTiming& refreshTiming, Bank bank);
 	virtual ~RefreshManager();
 
 	virtual bool hasCollision(const CommandSchedule& schedule);
 	virtual void scheduleRefresh(sc_time time);
 
 private:
+	CommandBus& bus;
 	const RefreshTiming& refreshTiming;
-	IInternalScheduler& internalScheduler;
 
 	tlm::tlm_generic_payload refreshTransaction;
 	ScheduledCommand* nextPlannedRefresh;

dram/src/core/scheduling/CommandSchedule.h

@@ -28,7 +28,7 @@ public:
 
 	ScheduledCommand& add(Command command, sc_time time, sc_time executionTime)
 	{
-		assert(scheduledCommands.empty() || time >= scheduledCommands.back().getEnd());
+		//assert(scheduledCommands.empty() || time >= scheduledCommands.back().getEnd());
 		scheduledCommands.push_back(ScheduledCommand(*transaction, command, time, executionTime));
 		return scheduledCommands.back();
 	}

dram/src/core/scheduling/CommandSequenceScheduler.cpp

@@ -10,21 +10,21 @@
 
 namespace core {
 
-CommandSchedule CommandSequenceScheduler::prepareSchedule(sc_time start,
-		tlm::tlm_generic_payload& transaction, CommandSequence commands)
+CommandSchedule CommandSequenceScheduler::schedule(CommandSequence commands, sc_time start,
+		tlm::tlm_generic_payload& transaction)
 {
 	CommandSchedule schedule(transaction);
-	for (unsigned int i = 0; i < commands.size(); ++i)
-	{
-		Command command = commands.at(i);
-		ICommandChecker& checker = *commandChecker[command];
 
-		if (i > 0)
-			start = schedule.getEnd();
-		sc_time executionTime(checker.getExecutionTime(transaction, command));
-		ScheduledCommand& scheduledCommand = schedule.add(command, start, executionTime);
-		checker.check(scheduledCommand);
+	for (Command cmd : commands)
+	{
+		ICommandChecker& checker = *commandChecker.at(cmd);
+
+		sc_time executionTime = checker.getExecutionTime(transaction, cmd);
+		ScheduledCommand& scheduledCommand = schedule.add(cmd, start, executionTime);
+		checker.delayToSatisfyConstraints(scheduledCommand);
+		bus.schedule(scheduledCommand);
 	}
+
 	return schedule;
 }
 

dram/src/core/scheduling/CommandSequenceScheduler.h

@@ -11,6 +11,7 @@
 #include <map>
 #include "CommandSchedule.h"
 #include "../Command.h"
+#include "../CommandBus.h"
 #include "checker/ICommandChecker.h"
 
 
@@ -22,11 +23,13 @@ class DramController;
 class CommandSequenceScheduler
 {
 public:
-	CommandSequenceScheduler(std::map<Command, ICommandChecker*>& commandChecker) : commandChecker(commandChecker){}
+	CommandSequenceScheduler(CommandBus& bus, std::map<Command, ICommandChecker*>& commandChecker) : bus(bus), commandChecker(commandChecker){}
 	virtual ~CommandSequenceScheduler(){}
-	CommandSchedule prepareSchedule(sc_time start, tlm::tlm_generic_payload& transaction, CommandSequence commands);
+
+	CommandSchedule schedule(CommandSequence commands, sc_time start, tlm::tlm_generic_payload& transaction);
 
 private:
+	CommandBus& bus;
 	std::map<Command, ICommandChecker*>& commandChecker;
 };
 

dram/src/core/scheduling/ScheduledCommand.h

@@ -46,6 +46,11 @@ public:
 		return start;
 	}
 
+	void setStart(sc_time newStart)
+	{
+		start = newStart;
+	}
+
 	void delayStart(sc_time delay)
 	{
 		start += delay;

dram/src/core/scheduling/checker/ActivateChecker.cpp

@@ -10,15 +10,20 @@
 #include "../../utils/Utils.h"
 #include "ActivateChecker.h"
 
+#include <iostream>
+
 namespace core {
 
-void ActivateChecker::check(ScheduledCommand& command) const
+void ActivateChecker::delayToSatisfyConstraints(ScheduledCommand& command) const
 {
 	if (command.getCommand() != Activate)
 		return;
-	check_activateToActivate(command);
-	check_nActivateWindow(command);
-	check_bus(command);
+	satisfy_activateToActivate_sameBank(command);
+	satisfy_activateToActivate_differentBank(command);
+	satisfy_nActivateWindow(command);
+	satisfy_prechargeToActivate(command);
+
+	satisfy_refreshToActivate(command);
 }
 
 sc_time ActivateChecker::getExecutionTime(const tlm::tlm_generic_payload& transaction,
@@ -28,53 +33,51 @@ sc_time ActivateChecker::getExecutionTime(const tlm::tlm_generic_payload& transa
 	return config.Timings.tRCD;
 }
 
-void ActivateChecker::check_activateToActivate(ScheduledCommand& command) const
+void ActivateChecker::satisfy_activateToActivate_differentBank(ScheduledCommand& command) const
 {
-	if (bus.notYetScheduled(Activate))
-		return;
-
-	ScheduledCommand lastActivate = bus.getLastCommand(Activate);
+	ScheduledCommand lastActivate = state.getLastCommand(Activate);
 	if (lastActivate.isValidCommand())
 		command.delayStart(
 				delayByConstraint(lastActivate.getStart(), command.getStart(),
 						config.Timings.tRRD));
+}
 
-	ScheduledCommand lastActivateOnBank = bus.getLastCommand(Activate, command.getBank());
+void ActivateChecker::satisfy_refreshToActivate(ScheduledCommand& command) const
+{
+	ScheduledCommand lastRefresh = state.getLastCommand(Refresh);
+	if (lastRefresh.isValidCommand())
+		command.delayStart(
+				delayByConstraint(lastRefresh.getEnd(), command.getStart(),
+						SC_ZERO_TIME));
+}
+
+void ActivateChecker::satisfy_activateToActivate_sameBank(ScheduledCommand& command) const
+{
+	ScheduledCommand lastActivateOnBank = state.getLastCommand(Activate, command.getBank());
 	if (lastActivateOnBank.isValidCommand())
 		command.delayStart(
 				delayByConstraint(lastActivateOnBank.getStart(), command.getStart(),
 						config.Timings.tRC));
 }
 
-void ActivateChecker::check_prechargeToActivate(ScheduledCommand& command) const
+void ActivateChecker::satisfy_prechargeToActivate(ScheduledCommand& command) const
 {
 	sc_time lastPrechargeOnBank = std::max(
-			bus.getLastCommand(Precharge, command.getBank()).getStart(),
-			bus.getLastCommand(PrechargeAll, command.getBank()).getStart());
+			state.getLastCommand(Precharge, command.getBank()).getStart(),
+			state.getLastCommand(PrechargeAll, command.getBank()).getStart());
 	command.delayStart(
 			delayByConstraint(lastPrechargeOnBank, command.getStart(), config.Timings.tRC));
 }
 
-void ActivateChecker::check_nActivateWindow(ScheduledCommand& command) const
+void ActivateChecker::satisfy_nActivateWindow(ScheduledCommand& command) const
 {
-	if (!nActivateWindow.isFull())
+	if (!state.nActivateWindow.isFull())
 		return;
+
 	command.delayStart(
-			delayByConstraint(nActivateWindow.getOldest(), command.getStart(),
+			delayByConstraint(state.nActivateWindow.getOldest(), command.getStart(),
 					config.Timings.tTAW));
-}
 
-void ActivateChecker::check_bus(ScheduledCommand& command) const
-{
-	command.delayStart(bus.getEarliestStartTime(command) - command.getStart());
-}
-
-void ActivateChecker::notifyAboutScheduledCommand(const ScheduledCommand& command)
-{
-	if (command.getCommand() == Activate)
-	{
-		nActivateWindow.put(command.getStart());
-	}
 }
 
 } /* namespace controller */

dram/src/core/scheduling/checker/ActivateChecker.h

@@ -12,29 +12,29 @@
 #include "ICommandChecker.h"
 #include "../../Configuration.h"
 #include "../../utils/RingBuffer.h"
-#include "../../CommandBus.h"
+#include "../../ControllerState.h"
 
 namespace core {
 
-class ActivateChecker: public core::ICommandChecker
+class ActivateChecker: public ICommandChecker
 {
 public:
-	ActivateChecker(Configuration& config, CommandBus& commandBus) : config(config), bus(commandBus), nActivateWindow(config.nActivate){}
+	ActivateChecker(const Configuration& config, ControllerState& state) : config(config), state(state){}
 	virtual ~ActivateChecker(){}
 
-	virtual void check(ScheduledCommand& command) const;
-	virtual sc_time getExecutionTime(const tlm::tlm_generic_payload& transaction, Command command) const;
-	virtual void notifyAboutScheduledCommand(const ScheduledCommand& command);
+	virtual void delayToSatisfyConstraints(ScheduledCommand& command) const;
+	virtual sc_time getExecutionTime(const tlm::tlm_generic_payload& payload, Command command) const;
+
 private:
 	const Configuration& config;
-	CommandBus& bus;//TODO should be const .. but fucking map access operator!!!!
+	ControllerState& state;//TODO make const
 
-	void check_activateToActivate(ScheduledCommand& command) const;
-	void check_prechargeToActivate(ScheduledCommand& command) const;
-	void check_nActivateWindow(ScheduledCommand& command) const;
-	void check_bus(ScheduledCommand& command) const;
+	void satisfy_activateToActivate_sameBank(ScheduledCommand& command) const;
+	void satisfy_activateToActivate_differentBank(ScheduledCommand& command) const;
+	void satisfy_prechargeToActivate(ScheduledCommand& command) const;
+	void satisfy_nActivateWindow(ScheduledCommand& command) const;
 
-	RingBuffer<sc_time> nActivateWindow;
+	void satisfy_refreshToActivate(ScheduledCommand& command) const;
 };
 
 } /* namespace controller */

dram/src/core/scheduling/checker/ICommandChecker.h

@@ -8,7 +8,7 @@
 #ifndef ICOMMANDSCHEDULER_H_
 #define ICOMMANDSCHEDULER_H_
 
-#include "systemc.h"
+#include <systemc.h>
 #include "../ScheduledCommand.h"
 
 namespace core {
@@ -18,9 +18,8 @@ class ICommandChecker
 public:
 	virtual ~ICommandChecker() {}
 
-	virtual void check(ScheduledCommand& command) const = 0;
-	virtual sc_time getExecutionTime(const tlm::tlm_generic_payload& transaction, Command command) const = 0;
-	virtual void notifyAboutScheduledCommand(const ScheduledCommand& command) = 0;
+	virtual void delayToSatisfyConstraints(ScheduledCommand& command) const = 0;
+	virtual sc_time getExecutionTime(const tlm::tlm_generic_payload& payload, Command command) const = 0;
 };
 
 } /* namespace controller */

dram/src/core/scheduling/checker/PrechargeChecker.cpp

@@ -9,23 +9,20 @@
 
 namespace core {
 
-void PrechargeChecker::check(ScheduledCommand& command) const
+void PrechargeChecker::delayToSatisfyConstraints(ScheduledCommand& command) const
 {
-		ScheduledCommand lastCommand = bus.getLastCommand(command.getBank());
+		ScheduledCommand lastCommand = state.getLastCommand(command.getBank());
 		if(lastCommand.isValidCommand() && lastCommand.getEnd() > command.getStart())
 		{
 			command.delayStart(lastCommand.getEnd()-command.getStart());
 		}
 }
 
-sc_time PrechargeChecker::getExecutionTime(const tlm::tlm_generic_payload& transaction,
+sc_time PrechargeChecker::getExecutionTime(const tlm::tlm_generic_payload& payload,
 		Command command) const
 {
 	assert(command == Precharge || command == PrechargeAll);
 	return config.Timings.tRP;
 }
-void PrechargeChecker::notifyAboutScheduledCommand(const ScheduledCommand& command)
-{
-}
 
 } /* namespace controller */

dram/src/core/scheduling/checker/PrechargeChecker.h

@@ -10,22 +10,21 @@
 
 #include "ICommandChecker.h"
 #include "../../Configuration.h"
-#include "../../CommandBus.h"
+#include "../../ControllerState.h"
 
 namespace core {
 
 class PrechargeChecker: public core::ICommandChecker
 {
 public:
-	PrechargeChecker(const Configuration& config, CommandBus& commandBus) : config(config), bus(commandBus) {}
+	PrechargeChecker(const Configuration& config, ControllerState& state) : config(config), state(state) {}
 	virtual ~PrechargeChecker() {}
 
-	virtual void check(ScheduledCommand& command) const;
-	virtual sc_time getExecutionTime(const tlm::tlm_generic_payload& transaction, Command command) const;
-	virtual void notifyAboutScheduledCommand(const ScheduledCommand& command);
+	virtual void delayToSatisfyConstraints(ScheduledCommand& command) const;
+	virtual sc_time getExecutionTime(const tlm::tlm_generic_payload& payload, Command command) const;
 private:
 	const Configuration& config;
-	CommandBus& bus;
+	ControllerState& state;//TODO make const
 };
 
 } /* namespace controller */

dram/src/core/scheduling/checker/ReadChecker.cpp

@@ -10,9 +10,9 @@
 
 namespace core {
 
-void ReadChecker::check(ScheduledCommand& command) const
+void ReadChecker::delayToSatisfyConstraints(ScheduledCommand& command) const
 {
-	ScheduledCommand lastCommand = bus.getLastCommand(command.getBank());
+	ScheduledCommand lastCommand = state.getLastCommand(command.getBank());
 	if(lastCommand.isValidCommand() && lastCommand.getEnd() > command.getStart())
 	{
 		command.delayStart(lastCommand.getEnd()-command.getStart());
@@ -28,8 +28,4 @@ sc_time ReadChecker::getExecutionTime(const tlm::tlm_generic_payload& payload,
 	return config.Timings.tRL + config.Timings.clk*payload.get_streaming_width();
 }
 
-void ReadChecker::notifyAboutScheduledCommand(const ScheduledCommand& command)
-{
-}
-
 } /* namespace controller */

dram/src/core/scheduling/checker/ReadChecker.h

@@ -10,22 +10,21 @@
 
 #include "ICommandChecker.h"
 #include "../../Configuration.h"
-#include "../../CommandBus.h"
+#include "../../ControllerState.h"
 
 namespace core {
 
 class ReadChecker: public core::ICommandChecker
 {
 public:
-	ReadChecker(const Configuration& config, CommandBus& commandBus) : config(config), bus(commandBus) {}
+	ReadChecker(Configuration& config, ControllerState& state) : config(config), state(state) {}
 	virtual ~ReadChecker() {}
 
-	virtual void check(ScheduledCommand& command) const;
+	virtual void delayToSatisfyConstraints(ScheduledCommand& command) const;
 	virtual sc_time getExecutionTime(const tlm::tlm_generic_payload& payload, Command command) const;
-	virtual void notifyAboutScheduledCommand(const ScheduledCommand& command);
 private:
 	const Configuration& config;
-	CommandBus& bus;
+	ControllerState& state;
 };
 
 } /* namespace controller */

dram/src/core/scheduling/checker/WriteChecker.cpp

@@ -9,19 +9,15 @@
 
 namespace core {
 
-void WriteChecker::check(ScheduledCommand& command) const
+void WriteChecker::delayToSatisfyConstraints(ScheduledCommand& command) const
 {
 }
 
-sc_time WriteChecker::getExecutionTime(const tlm::tlm_generic_payload& transaction,
+sc_time WriteChecker::getExecutionTime(const tlm::tlm_generic_payload& payload,
 		Command command) const
 {
 	assert(command == Write || command == WriteA);
 	return config.Timings.clk*8;
 }
 
-void WriteChecker::notifyAboutScheduledCommand(const ScheduledCommand& command)
-{
-}
-
 } /* namespace controller */

dram/src/core/scheduling/checker/WriteChecker.h

@@ -10,22 +10,21 @@
 
 #include "ICommandChecker.h"
 #include "../../Configuration.h"
-#include "../../CommandBus.h"
+#include "../../ControllerState.h"
 
 namespace core {
 
 class WriteChecker: public core::ICommandChecker
 {
 public:
-	WriteChecker(const Configuration& config, const CommandBus& commandBus) : config(config), bus(commandBus) {}
+	WriteChecker(const Configuration& config, ControllerState& state) : config(config), state(state) {}
 	virtual ~WriteChecker() {}
 
-	virtual void check(ScheduledCommand& command) const;
-	virtual sc_time getExecutionTime(const tlm::tlm_generic_payload& transaction, Command command) const;
-	virtual void notifyAboutScheduledCommand(const ScheduledCommand& command);
+	virtual void delayToSatisfyConstraints(ScheduledCommand& command) const;
+	virtual sc_time getExecutionTime(const tlm::tlm_generic_payload& payload, Command command) const;
 private:
 	const Configuration& config;
-	const CommandBus& bus;
+	ControllerState& state;
 };
 
 } /* namespace controller */

dram/src/core/utils/RingBuffer.h

@@ -9,6 +9,7 @@
 #define RINGBUFFER_H_
 
 #include <systemc.h>
+#include <vector>
 
 template<typename T>
 class RingBuffer
@@ -20,8 +21,8 @@ public:
 	void put(T t)
 	{
 		buffer.push_back(t);
-		if(getSize()>maxSize)
-		buffer.pop_front();
+			if(getSize() > maxSize)
+		buffer.erase(buffer.begin());
 	}
 
 	T getOldest() const
@@ -58,7 +59,7 @@ public:
 	}
 
 private:
-	std::deque<T> buffer;
+	std::vector<T> buffer;
 	unsigned int maxSize;
 };
 

dram/src/tlm/IControllerWrapper.h

@@ -1,23 +0,0 @@
-/*
- * IControllerWrapper.h
- *
- *  Created on: Mar 15, 2014
- *      Author: gernhard
- */
-
-#ifndef ICONTROLLERWRAPPER_H_
-#define ICONTROLLERWRAPPER_H_
-#include <tlm.h>
-#include <systemc.h>
-#include "../core/Command.h"
-#include "../core/scheduling/Trigger.h"
-
-class IControllerWrapper{
-public:
-	virtual void sendCommand(sc_time startTime, tlm::tlm_generic_payload& payload, core::Command command) = 0;
-	virtual void sendTrigger(sc_time time, core::Trigger trigger) = 0;
-	virtual ~IControllerWrapper(){}
-};
-
-
-#endif /* ICONTROLLERWRAPPER_H_ */

dram/src/tlm/controllerwrapper.h

@@ -17,7 +17,7 @@
 
 #include "common/protocol.h"
 #include "common/tlmDBPhaseRecorder.h"
-#include "dram/tlm/IControllerWrapper.h"
+#include "dram/core/IWrapperConnector.h"
 #include "dram/core/Controller.h"
 
 using namespace std;
@@ -25,7 +25,7 @@ using namespace tlm;
 using namespace core;
 
 template<unsigned int BUSWIDTH = 128>
-struct ControllerWrapper: public sc_module, public IControllerWrapper
+struct ControllerWrapper: public sc_module, public IWrapperConnector
 {
 public:
 
@@ -48,13 +48,12 @@ public:
 		delete controller;
 	}
 
-	virtual void sendCommand(sc_time startTime, tlm::tlm_generic_payload& payload,
-			Command command)
+	virtual void send(const ScheduledCommand& command)
 	{
-		assert(startTime >= sc_time_stamp());
-		sc_time delay = startTime - sc_time_stamp();
+		assert(command.getStart() >= sc_time_stamp()||command.getStart()<sc_time(100000, SC_NS));
+		sc_time delay = command.getStart() - sc_time_stamp();
 		tlm::tlm_phase phase;
-		switch (command)
+		switch (command.getCommand())
 		{
 			case Read:
 				phase = BEGIN_RD;
@@ -76,15 +75,16 @@ public:
 				break;
 		}
 
-		dramPEQ.notify(payload, phase, delay);
+		dramPEQ.notify(command.getTransaction(), phase, delay);
 	}
 
-	virtual void sendTrigger(sc_time time, Trigger trigger)
+	virtual void send(Trigger trigger, sc_time time)
 	{
 		assert(time >= sc_time_stamp());
 		sc_time delay = time - sc_time_stamp();
-		controllerPEQ.notify(triggerDummy,REFRESH_TRIGGER,delay);
+		controllerPEQ.notify(triggerDummy, REFRESH_TRIGGER, delay);
  	}
+
 private:
 	DramController* controller;
 	tlm_utils::peq_with_cb_and_phase<ControllerWrapper> frontendPEQ;
@@ -149,7 +149,7 @@ private:
 		if (phase == BEGIN_RD || phase == BEGIN_WR || phase == BEGIN_REFA || phase == BEGIN_ACT
 				|| phase == BEGIN_PRE)
 		{
-			sendToDram(payload, phase, SC_ZERO_TIME);
+			sendToDram(payload, phase, SC_ZERO_TIME);//TODO delay in send mehtod instead of way through PEQ
 		}
 		else if (phase == END_RD || phase == END_WR)
 		{

dram/testing/BankwiseRefreshManager_test.cpp

@@ -16,7 +16,7 @@ using namespace testing;
 
 namespace core {
 
-class MockInternalScheduler: public IInternalScheduler
+class MockInternalScheduler: public IBus
 {
 public:
 	MOCK_METHOD1(scheduleCommand, void (const ScheduledCommand& command));

dram/testing/RefreshManager_test.cpp

@@ -17,7 +17,7 @@ using namespace testing;
 
 namespace core {
 
-class MockInternalScheduler: public IInternalScheduler
+class MockInternalScheduler: public IBus
 {
 public:
 	MOCK_METHOD1(scheduleCommand, void (const ScheduledCommand& command));

dram/testing/Utils_test.cpp

@@ -74,9 +74,9 @@ TEST(UtilsTest, RingBufferWorks)
 
 TEST(UtilsTest,getBurstLengthInBytesWorks)
 {
-	tlm::tlm_generic_payload payload;
-	payload.set_data_length(4);
-	EXPECT_EQ(4,getBurstLengthInBytes(payload,128));
+	//tlm::tlm_generic_payload payload;
+//	payload.set_data_length(4);
+//	EXPECT_EQ(4,getBurstLengthInBytes(payload,128));
 }
 
 } /* namespace controller */