gem5::BaseGen Class Reference

Base class for all generators, with the shared functionality and virtual functions for entering, executing and leaving the generator. More...

#include <base_gen.hh>

Inheritance diagram for gem5::BaseGen:

Public Member Functions
	BaseGen (SimObject &obj, RequestorID requestor_id, Tick _duration)
	Create a base generator.
virtual	~BaseGen ()
std::string	name () const
	Get the name, useful for DPRINTFs.
virtual void	enter ()=0
	Enter this generator state.
virtual PacketPtr	getNextPacket ()=0
	Get the next generated packet.
virtual void	exit ()
	Exit this generator state.
virtual Tick	nextPacketTick (bool elastic, Tick delay) const =0
	Determine the tick when the next packet is available.

Public Attributes
const Tick	duration
	Time to spend in this state.

Protected Member Functions
PacketPtr	getPacket (Addr addr, unsigned size, const MemCmd &cmd, Request::FlagsType flags=0)
	Generate a new request and associated packet.

Protected Attributes
const std::string	_name
	Name to use for status and debug printing.
const RequestorID	requestorId
	The RequestorID used for generating requests.

Detailed Description

Base class for all generators, with the shared functionality and virtual functions for entering, executing and leaving the generator.

Definition at line 64 of file base_gen.hh.

Constructor & Destructor Documentation

BaseGen()

gem5::BaseGen::BaseGen	(	SimObject &	obj,
		RequestorID	requestor_id,
		Tick	_duration )

Create a base generator.

Parameters

obj	simobject owning the generator
requestor_id	RequestorID set on each request
_duration	duration of this state before transitioning

Definition at line 48 of file base_gen.cc.

~BaseGen()

virtual gem5::BaseGen::~BaseGen ( )

inlinevirtual

Definition at line 100 of file base_gen.hh.

Member Function Documentation

enter()

virtual void gem5::BaseGen::enter ( )

pure virtual

Enter this generator state.

Implemented in gem5::ExitGen, gem5::HybridGen, gem5::IdleGen, gem5::LinearGen, gem5::RandomGen, gem5::StridedGen, and gem5::TraceGen.

exit()

virtual void gem5::BaseGen::exit ( )

inlinevirtual

Exit this generator state.

By default do nothing.

Reimplemented in gem5::TraceGen.

Definition at line 124 of file base_gen.hh.

getNextPacket()

virtual PacketPtr gem5::BaseGen::getNextPacket ( )

pure virtual

Get the next generated packet.

Returns

A packet to be sent at the current tick

Implemented in gem5::DramGen, gem5::DramRotGen, gem5::ExitGen, gem5::HybridGen, gem5::IdleGen, gem5::LinearGen, gem5::NvmGen, gem5::RandomGen, gem5::StridedGen, and gem5::TraceGen.

getPacket()

PacketPtr gem5::BaseGen::getPacket ( Addr addr, unsigned size, const MemCmd & cmd, Request::FlagsType flags = 0 )

protected

Generate a new request and associated packet.

Parameters

addr	Physical address to use
size	Size of the request
cmd	Memory command to send
flags	Optional request flags

Definition at line 55 of file base_gen.cc.

References gem5::X86ISA::addr, gem5::Packet::dataDynamic(), flags, gem5::MemCmd::isWrite(), and requestorId.

Referenced by gem5::DramGen::getNextPacket(), gem5::DramRotGen::getNextPacket(), gem5::HybridGen::getNextPacket(), gem5::LinearGen::getNextPacket(), gem5::NvmGen::getNextPacket(), gem5::RandomGen::getNextPacket(), gem5::StridedGen::getNextPacket(), and gem5::TraceGen::getNextPacket().

name()

std::string gem5::BaseGen::name ( ) const

inline

Get the name, useful for DPRINTFs.

Returns

the given name

Definition at line 107 of file base_gen.hh.

References _name.

Referenced by gem5::ExitGen::enter(), gem5::TraceGen::exit(), gem5::HybridGen::HybridGen(), and gem5::StochasticGen::StochasticGen().

nextPacketTick()

virtual Tick gem5::BaseGen::nextPacketTick ( bool elastic, Tick delay ) const

pure virtual

Determine the tick when the next packet is available.

MaxTick means that there will not be any further packets in the current activation cycle of the generator.

Parameters

elastic	should the injection respond to flow control or not
delay	time the previous packet spent waiting

Returns

next tick when a packet is available

Implemented in gem5::ExitGen, gem5::HybridGen, gem5::IdleGen, gem5::LinearGen, gem5::RandomGen, gem5::StridedGen, and gem5::TraceGen.

Member Data Documentation

_name

const std::string gem5::BaseGen::_name

protected

Name to use for status and debug printing.

Definition at line 70 of file base_gen.hh.

Referenced by gem5::DramRotGen::DramRotGen(), and name().

duration

const Tick gem5::BaseGen::duration

Time to spend in this state.

Definition at line 89 of file base_gen.hh.

requestorId

const RequestorID gem5::BaseGen::requestorId

protected

The RequestorID used for generating requests.

Definition at line 73 of file base_gen.hh.

Referenced by getPacket().

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The documentation for this class was generated from the following files:

• cpu/testers/traffic_gen/base_gen.hh
• cpu/testers/traffic_gen/base_gen.cc