gem5  v20.1.0.0
Public Types | Public Member Functions | Private Member Functions | Private Attributes | List of all members
Switch Class Reference

#include <Switch.hh>

Inheritance diagram for Switch:
BasicRouter ClockedObject SimObject Clocked EventManager Serializable Drainable Stats::Group

Public Types

typedef SwitchParams Params
 
- Public Types inherited from BasicRouter
typedef BasicRouterParams Params
 
- Public Types inherited from ClockedObject
typedef ClockedObjectParams Params
 Parameters of ClockedObject. More...
 
- Public Types inherited from SimObject
typedef SimObjectParams Params
 

Public Member Functions

 Switch (const Params *p)
 
 ~Switch ()=default
 
void init ()
 init() is called after all C++ SimObjects have been created and all ports are connected. More...
 
void addInPort (const std::vector< MessageBuffer * > &in)
 
void addOutPort (const std::vector< MessageBuffer * > &out, const NetDest &routing_table_entry, Cycles link_latency, int bw_multiplier)
 
void resetStats ()
 Callback to reset stats. More...
 
void collateStats ()
 
void regStats ()
 Callback to set stat parameters. More...
 
const Stats::FormulagetMsgCount (unsigned int type) const
 
void print (std::ostream &out) const
 
void init_net_ptr (SimpleNetwork *net_ptr)
 
bool functionalRead (Packet *)
 
uint32_t functionalWrite (Packet *)
 
- Public Member Functions inherited from BasicRouter
 BasicRouter (const Params *p)
 
const Paramsparams () const
 
void print (std::ostream &out) const
 
- Public Member Functions inherited from ClockedObject
 ClockedObject (const ClockedObjectParams *p)
 
const Paramsparams () const
 
void serialize (CheckpointOut &cp) const override
 Serialize an object. More...
 
void unserialize (CheckpointIn &cp) override
 Unserialize an object. More...
 
- Public Member Functions inherited from SimObject
const Paramsparams () const
 
 SimObject (const Params *_params)
 
virtual ~SimObject ()
 
virtual const std::string name () const
 
virtual void loadState (CheckpointIn &cp)
 loadState() is called on each SimObject when restoring from a checkpoint. More...
 
virtual void initState ()
 initState() is called on each SimObject when not restoring from a checkpoint. More...
 
virtual void regProbePoints ()
 Register probe points for this object. More...
 
virtual void regProbeListeners ()
 Register probe listeners for this object. More...
 
ProbeManagergetProbeManager ()
 Get the probe manager for this object. More...
 
virtual PortgetPort (const std::string &if_name, PortID idx=InvalidPortID)
 Get a port with a given name and index. More...
 
virtual void startup ()
 startup() is the final initialization call before simulation. More...
 
DrainState drain () override
 Provide a default implementation of the drain interface for objects that don't need draining. More...
 
virtual void memWriteback ()
 Write back dirty buffers to memory using functional writes. More...
 
virtual void memInvalidate ()
 Invalidate the contents of memory buffers. More...
 
void serialize (CheckpointOut &cp) const override
 Serialize an object. More...
 
void unserialize (CheckpointIn &cp) override
 Unserialize an object. More...
 
- Public Member Functions inherited from EventManager
EventQueueeventQueue () const
 
void schedule (Event &event, Tick when)
 
void deschedule (Event &event)
 
void reschedule (Event &event, Tick when, bool always=false)
 
void schedule (Event *event, Tick when)
 
void deschedule (Event *event)
 
void reschedule (Event *event, Tick when, bool always=false)
 
void wakeupEventQueue (Tick when=(Tick) -1)
 This function is not needed by the usual gem5 event loop but may be necessary in derived EventQueues which host gem5 on other schedulers. More...
 
void setCurTick (Tick newVal)
 
 EventManager (EventManager &em)
 Event manger manages events in the event queue. More...
 
 EventManager (EventManager *em)
 
 EventManager (EventQueue *eq)
 
- Public Member Functions inherited from Serializable
 Serializable ()
 
virtual ~Serializable ()
 
void serializeSection (CheckpointOut &cp, const char *name) const
 Serialize an object into a new section. More...
 
void serializeSection (CheckpointOut &cp, const std::string &name) const
 
void unserializeSection (CheckpointIn &cp, const char *name)
 Unserialize an a child object. More...
 
void unserializeSection (CheckpointIn &cp, const std::string &name)
 
- Public Member Functions inherited from Drainable
DrainState drainState () const
 Return the current drain state of an object. More...
 
virtual void notifyFork ()
 Notify a child process of a fork. More...
 
- Public Member Functions inherited from Stats::Group
 Group (Group *parent, const char *name=nullptr)
 Construct a new statistics group. More...
 
virtual ~Group ()
 
virtual void preDumpStats ()
 Callback before stats are dumped. More...
 
void addStat (Stats::Info *info)
 Register a stat with this group. More...
 
const std::map< std::string, Group * > & getStatGroups () const
 Get all child groups associated with this object. More...
 
const std::vector< Info * > & getStats () const
 Get all stats associated with this object. More...
 
void addStatGroup (const char *name, Group *block)
 Add a stat block as a child of this block. More...
 
const InforesolveStat (std::string name) const
 Resolve a stat by its name within this group. More...
 
 Group ()=delete
 
 Group (const Group &)=delete
 
Groupoperator= (const Group &)=delete
 
- Public Member Functions inherited from Clocked
void updateClockPeriod ()
 Update the tick to the current tick. More...
 
Tick clockEdge (Cycles cycles=Cycles(0)) const
 Determine the tick when a cycle begins, by default the current one, but the argument also enables the caller to determine a future cycle. More...
 
Cycles curCycle () const
 Determine the current cycle, corresponding to a tick aligned to a clock edge. More...
 
Tick nextCycle () const
 Based on the clock of the object, determine the start tick of the first cycle that is at least one cycle in the future. More...
 
uint64_t frequency () const
 
Tick clockPeriod () const
 
double voltage () const
 
Cycles ticksToCycles (Tick t) const
 
Tick cyclesToTicks (Cycles c) const
 

Private Member Functions

 Switch (const Switch &obj)
 
Switchoperator= (const Switch &obj)
 

Private Attributes

PerfectSwitch perfectSwitch
 
SimpleNetworkm_network_ptr
 
std::list< Throttlethrottles
 
unsigned m_num_connected_buffers
 
std::vector< MessageBuffer * > m_port_buffers
 
Stats::Formula m_avg_utilization
 
Stats::Formula m_msg_counts [MessageSizeType_NUM]
 
Stats::Formula m_msg_bytes [MessageSizeType_NUM]
 

Additional Inherited Members

- Static Public Member Functions inherited from SimObject
static void serializeAll (CheckpointOut &cp)
 Serialize all SimObjects in the system. More...
 
static SimObjectfind (const char *name)
 Find the SimObject with the given name and return a pointer to it. More...
 
- Static Public Member Functions inherited from Serializable
static const std::string & currentSection ()
 Gets the fully-qualified name of the active section. More...
 
static void serializeAll (const std::string &cpt_dir)
 Serializes all the SimObjects. More...
 
static void unserializeGlobals (CheckpointIn &cp)
 
- Public Attributes inherited from ClockedObject
PowerStatepowerState
 
- Protected Member Functions inherited from Drainable
 Drainable ()
 
virtual ~Drainable ()
 
virtual void drainResume ()
 Resume execution after a successful drain. More...
 
void signalDrainDone () const
 Signal that an object is drained. More...
 
- Protected Member Functions inherited from Clocked
 Clocked (ClockDomain &clk_domain)
 Create a clocked object and set the clock domain based on the parameters. More...
 
 Clocked (Clocked &)=delete
 
Clockedoperator= (Clocked &)=delete
 
virtual ~Clocked ()
 Virtual destructor due to inheritance. More...
 
void resetClock () const
 Reset the object's clock using the current global tick value. More...
 
virtual void clockPeriodUpdated ()
 A hook subclasses can implement so they can do any extra work that's needed when the clock rate is changed. More...
 
- Protected Attributes inherited from BasicRouter
uint32_t m_id
 
uint32_t m_latency
 
- Protected Attributes inherited from SimObject
const SimObjectParams * _params
 Cached copy of the object parameters. More...
 
- Protected Attributes inherited from EventManager
EventQueueeventq
 A pointer to this object's event queue. More...
 

Detailed Description

Definition at line 59 of file Switch.hh.

Member Typedef Documentation

◆ Params

typedef SwitchParams Switch::Params

Definition at line 62 of file Switch.hh.

Constructor & Destructor Documentation

◆ Switch() [1/2]

Switch::Switch ( const Params p)

Definition at line 54 of file Switch.cc.

References m_port_buffers, and MipsISA::p.

◆ ~Switch()

Switch::~Switch ( )
default

◆ Switch() [2/2]

Switch::Switch ( const Switch obj)
private

Member Function Documentation

◆ addInPort()

void Switch::addInPort ( const std::vector< MessageBuffer * > &  in)

Definition at line 72 of file Switch.cc.

References PerfectSwitch::addInPort(), and perfectSwitch.

◆ addOutPort()

void Switch::addOutPort ( const std::vector< MessageBuffer * > &  out,
const NetDest routing_table_entry,
Cycles  link_latency,
int  bw_multiplier 
)

◆ collateStats()

void Switch::collateStats ( )

Definition at line 151 of file Switch.cc.

References PerfectSwitch::collateStats(), perfectSwitch, and throttles.

◆ functionalRead()

bool Switch::functionalRead ( Packet pkt)

Definition at line 167 of file Switch.cc.

References ArmISA::i, and m_port_buffers.

◆ functionalWrite()

uint32_t Switch::functionalWrite ( Packet pkt)

Definition at line 177 of file Switch.cc.

References ArmISA::i, and m_port_buffers.

◆ getMsgCount()

const Stats::Formula& Switch::getMsgCount ( unsigned int  type) const
inline

Definition at line 75 of file Switch.hh.

References m_msg_counts, and type.

◆ init()

void Switch::init ( )
virtual

init() is called after all C++ SimObjects have been created and all ports are connected.

Initializations that are independent of unserialization but rely on a fully instantiated and connected SimObject graph should be done here.

Reimplemented from BasicRouter.

Definition at line 65 of file Switch.cc.

References BasicRouter::init(), PerfectSwitch::init(), m_network_ptr, and perfectSwitch.

◆ init_net_ptr()

void Switch::init_net_ptr ( SimpleNetwork net_ptr)
inline

Definition at line 79 of file Switch.hh.

References m_network_ptr.

◆ operator=()

Switch& Switch::operator= ( const Switch obj)
private

◆ print()

void Switch::print ( std::ostream &  out) const

Definition at line 160 of file Switch.cc.

Referenced by operator<<().

◆ regStats()

void Switch::regStats ( )
virtual

Callback to set stat parameters.

This callback is typically used for complex stats (e.g., distributions) that need parameters in addition to a name and a description. Stat names and descriptions should typically be set from the constructor usingo from the constructor using the ADD_STAT macro.

Reimplemented from Stats::Group.

Definition at line 106 of file Switch.cc.

References Stats::constant(), Stats::DataWrap< Derived, InfoProxyType >::flags(), m_avg_utilization, m_msg_bytes, m_msg_counts, Network::MessageSizeType_to_int(), SimObject::name(), Stats::DataWrap< Derived, InfoProxyType >::name(), Stats::nozero, Stats::Group::regStats(), throttles, and type.

◆ resetStats()

void Switch::resetStats ( )
virtual

Callback to reset stats.

Reimplemented from Stats::Group.

Definition at line 142 of file Switch.cc.

References PerfectSwitch::clearStats(), perfectSwitch, and throttles.

Member Data Documentation

◆ m_avg_utilization

Stats::Formula Switch::m_avg_utilization
private

Definition at line 97 of file Switch.hh.

Referenced by regStats().

◆ m_msg_bytes

Stats::Formula Switch::m_msg_bytes[MessageSizeType_NUM]
private

Definition at line 99 of file Switch.hh.

Referenced by regStats().

◆ m_msg_counts

Stats::Formula Switch::m_msg_counts[MessageSizeType_NUM]
private

Definition at line 98 of file Switch.hh.

Referenced by getMsgCount(), and regStats().

◆ m_network_ptr

SimpleNetwork* Switch::m_network_ptr
private

Definition at line 90 of file Switch.hh.

Referenced by addOutPort(), init(), and init_net_ptr().

◆ m_num_connected_buffers

unsigned Switch::m_num_connected_buffers
private

Definition at line 93 of file Switch.hh.

Referenced by addOutPort().

◆ m_port_buffers

std::vector<MessageBuffer*> Switch::m_port_buffers
private

Definition at line 94 of file Switch.hh.

Referenced by addOutPort(), functionalRead(), functionalWrite(), and Switch().

◆ perfectSwitch

PerfectSwitch Switch::perfectSwitch
private

Definition at line 89 of file Switch.hh.

Referenced by addInPort(), addOutPort(), collateStats(), init(), and resetStats().

◆ throttles

std::list<Throttle> Switch::throttles
private

Definition at line 91 of file Switch.hh.

Referenced by addOutPort(), collateStats(), regStats(), and resetStats().


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

Generated on Wed Sep 30 2020 14:02:32 for gem5 by doxygen 1.8.17