gem5  v21.1.0.2
Classes | Typedefs
gem5::probing Namespace Reference

Classes

struct  PacketInfo
 A struct to hold on to the essential fields from a packet, so that the packet and underlying request can be safely passed on, and consequently modified or even deleted. More...
 

Typedefs

typedef ProbePointArg< PacketInfoPacket
 Packet probe point. More...
 
typedef std::unique_ptr< PacketPacketUPtr
 
typedef ProbePointArg< uint64_t > PMU
 PMU probe point. More...
 
typedef std::unique_ptr< PMUPMUUPtr
 

Typedef Documentation

◆ Packet

Packet probe point.

This probe point provides a unified interface for components that want to instrument Packets in the memory system. Components should when possible adhere to the following naming scheme:

  • PktRequest: Requests sent out on the memory side of a normal components and incoming requests for memories. Packets should not be duplicated (i.e., a packet should only appear once irrespective of the receiving end requesting a retry).

  • PktResponse: Response received from the memory side of a normal component or a response being sent out from a memory.

  • PktRequestCPU: Incoming, accepted, memory request on the CPU side of a two-sided component. This probe point is primarily intended for components that cache or forward requests (e.g., caches and XBars), single-sided components should use PktRequest instead. The probe point should only be called when a packet is accepted.

  • PktResponseCPU: Outgoing response memory request on the CPU side of a two-sided component. This probe point is primarily intended for components that cache or forward requests (e.g., caches and XBars), single-sided components should use PktRequest instead.

Definition at line 109 of file mem.hh.

◆ PacketUPtr

typedef std::unique_ptr<Packet> gem5::probing::PacketUPtr

Definition at line 110 of file mem.hh.

◆ PMU

typedef ProbePointArg<uint64_t> gem5::probing::PMU

PMU probe point.

This probe point provides a unified interface for PMU instrumentation of SimObjects. SimObjects that need PMU instrumentation should implement probes of this type call the notify method with the event count increment as its only parameter.

Definition at line 60 of file pmu.hh.

◆ PMUUPtr

typedef std::unique_ptr<PMU> gem5::probing::PMUUPtr

Definition at line 61 of file pmu.hh.


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