vm

package
v3.0.0-alpha.10 Latest Latest
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 Go to latest Published: May 17, 2023 License: MIT Imports: 5 Imported by: 8

Documentation

Overview

Package vm provides the models for address translations

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type PID 

type PID uint32

PID stands for Process ID.

type Page 

type Page struct {
	PID         PID
	PAddr       uint64
	VAddr       uint64
	PageSize    uint64
	Valid       bool
	DeviceID    uint64
	Unified     bool
	IsMigrating bool
	IsPinned    bool
}

A Page is an entry in the page table, maintaining the information about how to translate a virtual address to a physical address.

type PageMigrationInfo 

type PageMigrationInfo struct {
	GPUReqToVAddrMap map[uint64][]uint64
}

PageMigrationInfo records the information required for the driver to perform a page migration.

type PageMigrationReqToDriver 

type PageMigrationReqToDriver struct {
	sim.MsgMeta

	StartTime         sim.VTimeInSec
	EndTime           sim.VTimeInSec
	MigrationInfo     *PageMigrationInfo
	CurrAccessingGPUs []uint64
	PID               PID
	CurrPageHostGPU   uint64
	PageSize          uint64
	RespondToTop      bool
}

PageMigrationReqToDriver is a req to driver from MMU to start page migration process

func NewPageMigrationReqToDriver 

func NewPageMigrationReqToDriver(
	time sim.VTimeInSec,
	src, dst sim.Port,
) *PageMigrationReqToDriver

NewPageMigrationReqToDriver creates a PageMigrationReqToDriver.

func (*PageMigrationReqToDriver) Meta 

func (m *PageMigrationReqToDriver) Meta() *sim.MsgMeta

Meta returns the meta data associated with the message.

type PageMigrationRspFromDriver 

type PageMigrationRspFromDriver struct {
	sim.MsgMeta

	StartTime sim.VTimeInSec
	EndTime   sim.VTimeInSec
	VAddr     []uint64
	RspToTop  bool
}

PageMigrationRspFromDriver is a rsp from driver to MMU marking completion of migration

func NewPageMigrationRspFromDriver 

func NewPageMigrationRspFromDriver(
	time sim.VTimeInSec,
	src, dst sim.Port,
) *PageMigrationRspFromDriver

NewPageMigrationRspFromDriver creates a new PageMigrationRspFromDriver.

func (*PageMigrationRspFromDriver) Meta 

func (m *PageMigrationRspFromDriver) Meta() *sim.MsgMeta

Meta returns the meta data associated with the message.

type PageTable 

type PageTable interface {
	Insert(page Page)
	Remove(pid PID, vAddr uint64)
	Find(pid PID, Addr uint64) (Page, bool)
	Update(page Page)
}

A PageTable holds the a list of pages.

func NewPageTable 

func NewPageTable(log2PageSize uint64) PageTable

NewPageTable creates a new PageTable.

type TLBTracer 

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

A TLBTracer write logs for what happened in a TLB

func NewTLBTracer 

func NewTLBTracer(w io.Writer, timeTeller sim.TimeTeller) *TLBTracer

NewTLBTracer produce a new TLBTracer, injecting the dependency of a writer.

func (*TLBTracer) Func 

func (t *TLBTracer) Func(ctx *sim.HookCtx)

Func prints the tlb trace information.

type TranslationReq 

type TranslationReq struct {
	sim.MsgMeta
	VAddr    uint64
	PID      PID
	DeviceID uint64
}

A TranslationReq asks the receiver component to translate the request.

func (*TranslationReq) Meta 

func (r *TranslationReq) Meta() *sim.MsgMeta

Meta returns the meta data associated with the message.

type TranslationReqBuilder 

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

TranslationReqBuilder can build translation requests

func (TranslationReqBuilder) Build 

func (b TranslationReqBuilder) Build() *TranslationReq

Build creates a new TranslationReq

func (TranslationReqBuilder) WithDeviceID 

func (b TranslationReqBuilder) WithDeviceID(deviceID uint64) TranslationReqBuilder

WithDeviceID sets the GPU ID of the request to build.

func (TranslationReqBuilder) WithDst 

func (b TranslationReqBuilder) WithDst(dst sim.Port) TranslationReqBuilder

WithDst sets the destination of the request to build.

func (TranslationReqBuilder) WithPID 

func (b TranslationReqBuilder) WithPID(pid PID) TranslationReqBuilder

WithPID sets the virtual address of the request to build.

func (TranslationReqBuilder) WithSendTime 

func (b TranslationReqBuilder) WithSendTime(
	t sim.VTimeInSec,
) TranslationReqBuilder

WithSendTime sets the send time of the request to build.:w

func (TranslationReqBuilder) WithSrc 

func (b TranslationReqBuilder) WithSrc(src sim.Port) TranslationReqBuilder

WithSrc sets the source of the request to build.

func (TranslationReqBuilder) WithVAddr 

func (b TranslationReqBuilder) WithVAddr(vAddr uint64) TranslationReqBuilder

WithVAddr sets the virtual address of the request to build.

type TranslationRsp 

type TranslationRsp struct {
	sim.MsgMeta
	RespondTo string // The ID of the request it replies
	Page      Page
}

A TranslationRsp is the respond for a TranslationReq. It carries the physical address.

func (*TranslationRsp) GetRspTo 

func (r *TranslationRsp) GetRspTo() string

GetRspTo returns the request ID that the respond is responding to.

func (*TranslationRsp) Meta 

func (r *TranslationRsp) Meta() *sim.MsgMeta

Meta returns the meta data associated with the message.

type TranslationRspBuilder 

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

TranslationRspBuilder can build translation requests

func (TranslationRspBuilder) Build 

func (b TranslationRspBuilder) Build() *TranslationRsp

Build creates a new TranslationRsp

func (TranslationRspBuilder) WithDst 

func (b TranslationRspBuilder) WithDst(dst sim.Port) TranslationRspBuilder

WithDst sets the destination of the respond to build.

func (TranslationRspBuilder) WithPage 

func (b TranslationRspBuilder) WithPage(page Page) TranslationRspBuilder

WithPage sets the page of the respond to build.

func (TranslationRspBuilder) WithRspTo 

func (b TranslationRspBuilder) WithRspTo(rspTo string) TranslationRspBuilder

WithRspTo sets the request ID of the respond to build.

func (TranslationRspBuilder) WithSendTime 

func (b TranslationRspBuilder) WithSendTime(
	t sim.VTimeInSec,
) TranslationRspBuilder

WithSendTime sets the send time of the message to build.

func (TranslationRspBuilder) WithSrc 

func (b TranslationRspBuilder) WithSrc(src sim.Port) TranslationRspBuilder

WithSrc sets the source of the respond to build.

Source Files

View all Source files

Directories

Path Synopsis
Package addresstranslator implements a component that can forward the translated read and write request to the bottom memory unit.
 Package addresstranslator implements a component that can forward the translated read and write request to the bottom memory unit.
Package mmu provides a Memory Management Unit implementation.
 Package mmu provides a Memory Management Unit implementation.
tlb
Package tlb provides a TLB component implementation.
 Package tlb provides a TLB component implementation.
internal
Package internal provides the definition required for defining TLB.
 Package internal provides the definition required for defining TLB.

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