cp

Documentation

Overview

Package cp defines the Command Processor component of a GCN3 GPU

Index

• type Builder
  • func MakeBuilder() Builder
  • func (b Builder) Build(name string) *CommandProcessor
  • func (b Builder) ShowProgressBar() Builder
  • func (b Builder) WithEngine(engine akita.Engine) Builder
  • func (b Builder) WithFreq(freq akita.Freq) Builder
  • func (b Builder) WithVisTracer(tracer tracing.Tracer) Builder
• type CUInterfaceForCP
• type CommandProcessor
  • func (p *CommandProcessor) RegisterCU(cu CUInterfaceForCP)
  • func (p *CommandProcessor) Tick(now akita.VTimeInSec) bool
• type DMAEngine
  • func NewDMAEngine(name string, engine akita.Engine, localDataSource cache.LowModuleFinder) *DMAEngine
  • func (dma *DMAEngine) SetLocalDataSource(s cache.LowModuleFinder)
  • func (dma *DMAEngine) Tick(now akita.VTimeInSec) bool

Types

type Builder

type Builder struct {
	// contains filtered or unexported fields
}

Builder can build Command Processors

func MakeBuilder

func MakeBuilder() Builder

MakeBuilder creates a new builder with default configuration values.

func (Builder) Build

func (b Builder) Build(name string) *CommandProcessor

Build builds a new Command Processor

func (Builder) ShowProgressBar

func (b Builder) ShowProgressBar() Builder

ShowProgressBar enables progress bar.

func (Builder) WithEngine

func (b Builder) WithEngine(engine akita.Engine) Builder

WithEngine sets the even-driven simulation engine to use.

func (Builder) WithFreq

func (b Builder) WithFreq(freq akita.Freq) Builder

WithFreq sets the frequency that the Command Processor works at.

func (Builder) WithVisTracer

func (b Builder) WithVisTracer(tracer tracing.Tracer) Builder

WithVisTracer enables tracing for visualzation on the command processor and the dispatchers.

type CUInterfaceForCP

type CUInterfaceForCP interface {
	resource.DispatchableCU

	// ControlPort returns a port on the CU that the CP can send controlling
	// messages to.
	ControlPort() akita.Port
}

CUInterfaceForCP defines the interface that a CP requires from CU.

type CommandProcessor

type CommandProcessor struct {
	*akita.TickingComponent

	Dispatchers        []dispatching.Dispatcher
	DMAEngine          akita.Port
	Driver             akita.Port
	TLBs               []akita.Port
	CUs                []akita.Port
	AddressTranslators []akita.Port
	RDMA               akita.Port
	PMC                akita.Port
	L1VCaches          []akita.Port
	L1SCaches          []akita.Port
	L1ICaches          []akita.Port
	L2Caches           []akita.Port
	DRAMControllers    []*idealmemcontroller.Comp

	ToDriver akita.Port

	ToDMA akita.Port

	ToCUs akita.Port

	ToTLBs akita.Port

	ToAddressTranslators akita.Port

	ToCaches akita.Port

	ToRDMA akita.Port

	ToPMC akita.Port
	// contains filtered or unexported fields
}

CommandProcessor is an Akita component that is responsible for receiving requests from the driver and dispatch the requests to other parts of the GPU.

func (*CommandProcessor) RegisterCU

func (p *CommandProcessor) RegisterCU(cu CUInterfaceForCP)

RegisterCU allows the Command Processor to control the CU.

func (*CommandProcessor) Tick

func (p *CommandProcessor) Tick(now akita.VTimeInSec) bool

Tick ticks

type DMAEngine

type DMAEngine struct {
	*akita.TickingComponent

	Log2AccessSize uint64

	ToCP  akita.Port
	ToMem akita.Port
	// contains filtered or unexported fields
}

A DMAEngine is responsible for accessing data that does not belongs to the GPU that the DMAEngine works in.

func NewDMAEngine

func NewDMAEngine(
	name string,
	engine akita.Engine,
	localDataSource cache.LowModuleFinder,
) *DMAEngine

NewDMAEngine creates a DMAEngine, injecting a engine and a "LowModuleFinder" that helps with locating the module that holds the data.

func (*DMAEngine) SetLocalDataSource

func (dma *DMAEngine) SetLocalDataSource(s cache.LowModuleFinder)

SetLocalDataSource sets the table that maps from addresses to port that can provide the data.

func (*DMAEngine) Tick

func (dma *DMAEngine) Tick(now akita.VTimeInSec) bool

Tick ticks