gem5  v20.1.0.0
Public Types | Public Member Functions | Private Member Functions | Private Attributes | Static Private Attributes | List of all members
Gicv2m Class Reference

#include <gic_v2m.hh>

Inheritance diagram for Gicv2m:
PioDevice ClockedObject SimObject Clocked EventManager Serializable Drainable Stats::Group

Public Types

typedef Gicv2mParams Params
 
- Public Types inherited from PioDevice
typedef PioDeviceParams Params
 
- Public Types inherited from ClockedObject
typedef ClockedObjectParams Params
 Parameters of ClockedObject. More...
 
- Public Types inherited from SimObject
typedef SimObjectParams Params
 

Public Member Functions

 Gicv2m (const Params *p)
 
virtual AddrRangeList getAddrRanges () const
 Return the address ranges used by the Gicv2m This is the set of frame addresses. More...
 
virtual Tick read (PacketPtr pkt)
 A PIO read to the device. More...
 
virtual Tick write (PacketPtr pkt)
 A PIO read to the device. More...
 
- Public Member Functions inherited from PioDevice
 PioDevice (const Params *p)
 
virtual ~PioDevice ()
 
const Paramsparams () const
 
void init () override
 init() is called after all C++ SimObjects have been created and all ports are connected. More...
 
PortgetPort (const std::string &if_name, PortID idx=InvalidPortID) override
 Get a port with a given name and index. More...
 
- 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 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 regStats ()
 Callback to set stat parameters. More...
 
virtual void resetStats ()
 Callback to reset stats. More...
 
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

int frameFromAddr (Addr a) const
 Determine which frame a PIO access lands in. More...
 

Private Attributes

const Tick pioDelay
 Latency for an MMIO operation. More...
 
std::vector< Gicv2mFrame * > frames
 A set of configured hardware frames. More...
 
BaseGicgic
 Gic to which we fire interrupts. More...
 
unsigned int log2framenum
 Count of number of configured frames, as log2(frames) More...
 

Static Private Attributes

static const int FRAME_SIZE = 0x10000
 
static const int MSI_TYPER = 0x0008
 
static const int MSI_SETSPI_NSR = 0x0040
 
static const int PER_ID4 = 0x0fd0
 

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 PioDevice
Systemsys
 
PioPort< PioDevicepioPort
 The pioPort that handles the requests for us and provides us requests that it sees. More...
 
- 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 73 of file gic_v2m.hh.

Member Typedef Documentation

◆ Params

typedef Gicv2mParams Gicv2m::Params

Definition at line 95 of file gic_v2m.hh.

Constructor & Destructor Documentation

◆ Gicv2m()

Gicv2m::Gicv2m ( const Params p)

Definition at line 79 of file gic_v2m.cc.

References fatal, fatal_if, floorLog2(), frames, ArmISA::i, isPowerOf2(), log2framenum, and RiscvISA::x.

Member Function Documentation

◆ frameFromAddr()

int Gicv2m::frameFromAddr ( Addr  a) const
private

Determine which frame a PIO access lands in.

Definition at line 161 of file gic_v2m.cc.

References ArmISA::a, addr, FRAME_SIZE, frames, and ArmISA::i.

Referenced by read(), and write().

◆ getAddrRanges()

AddrRangeList Gicv2m::getAddrRanges ( ) const
virtual

Return the address ranges used by the Gicv2m This is the set of frame addresses.

Implements PioDevice.

Definition at line 95 of file gic_v2m.cc.

References addr, FRAME_SIZE, frames, ArmISA::i, and RangeSize().

◆ read()

Tick Gicv2m::read ( PacketPtr  pkt)
virtual

A PIO read to the device.

Implements PioDevice.

Definition at line 105 of file gic_v2m.cc.

References DPRINTF, frameFromAddr(), frames, Packet::getAddr(), log2framenum, Packet::makeAtomicResponse(), MSI_TYPER, ArmISA::offset, PER_ID4, pioDelay, and Packet::setLE().

◆ write()

Tick Gicv2m::write ( PacketPtr  pkt)
virtual

Member Data Documentation

◆ FRAME_SIZE

const int Gicv2m::FRAME_SIZE = 0x10000
staticprivate

Definition at line 76 of file gic_v2m.hh.

Referenced by frameFromAddr(), and getAddrRanges().

◆ frames

std::vector<Gicv2mFrame *> Gicv2m::frames
private

A set of configured hardware frames.

Definition at line 86 of file gic_v2m.hh.

Referenced by frameFromAddr(), getAddrRanges(), Gicv2m(), read(), and write().

◆ gic

BaseGic* Gicv2m::gic
private

Gic to which we fire interrupts.

Definition at line 89 of file gic_v2m.hh.

Referenced by write().

◆ log2framenum

unsigned int Gicv2m::log2framenum
private

Count of number of configured frames, as log2(frames)

Definition at line 92 of file gic_v2m.hh.

Referenced by Gicv2m(), and read().

◆ MSI_SETSPI_NSR

const int Gicv2m::MSI_SETSPI_NSR = 0x0040
staticprivate

Definition at line 79 of file gic_v2m.hh.

Referenced by write().

◆ MSI_TYPER

const int Gicv2m::MSI_TYPER = 0x0008
staticprivate

Definition at line 78 of file gic_v2m.hh.

Referenced by read().

◆ PER_ID4

const int Gicv2m::PER_ID4 = 0x0fd0
staticprivate

Definition at line 80 of file gic_v2m.hh.

Referenced by read().

◆ pioDelay

const Tick Gicv2m::pioDelay
private

Latency for an MMIO operation.

Definition at line 83 of file gic_v2m.hh.

Referenced by read(), and write().


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

Generated on Wed Sep 30 2020 14:02:25 for gem5 by doxygen 1.8.17