cse378.pagetable
Class PageTable

java.lang.Object
  cse378.pagetable.PageTable

public class PageTable
extends java.lang.Object

Field Summary

(package private) long	cleanMisses
(package private) long	dirtyMisses
(package private) long	hits
(package private) int	maxPages
(package private) int	pageCount
(package private) java.util.HashMap<cse378.address.VirtualPage,PageTableEntry>	pages
(package private) java.util.LinkedList<PageTableEntry>	recent
(package private) Status	stat
(package private) cse378.address.VirtualPage	tlbEvictionAddress

Constructor Summary

PageTable(int maxSize)
Create a page table with a fixed number of physical pages

Method Summary

long	getCleanMisses()
java.lang.String	getCounts()
long	getDirtyMisses()
private PageTableEntry	getLRU()
Status	getStatus()
protected void	initStatus(cse378.address.VirtualAddress addr) Initialize the page table status
cse378.address.PhysicalPage	load(cse378.address.VirtualAddress addr) Get a physical page mapping from the page table If none is found, one is created
cse378.address.VirtualPage	pendingTLBEviction()
void	setMRU(PageTableEntry pte)
cse378.address.PhysicalPage	store(cse378.address.VirtualAddress addr) Get a physical page mapping from the page table If none is found, one is created, (and marked dirty)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

pages

java.util.HashMap<cse378.address.VirtualPage,PageTableEntry> pages

recent

java.util.LinkedList<PageTableEntry> recent

maxPages

final int maxPages

pageCount

int pageCount

hits

long hits

cleanMisses

long cleanMisses

dirtyMisses

long dirtyMisses

stat

Status stat

tlbEvictionAddress

cse378.address.VirtualPage tlbEvictionAddress

Constructor Detail

PageTable

public PageTable(int maxSize)

Create a page table with a fixed number of physical pages

Parameters:

maxSize - number of physical pages available

Method Detail

initStatus

protected void initStatus(cse378.address.VirtualAddress addr)

Initialize the page table status

Parameters:

addr - address of current access

load

public cse378.address.PhysicalPage load(cse378.address.VirtualAddress addr)

Get a physical page mapping from the page table If none is found, one is created

Parameters:

addr - VirtualAddress of the desired page

See Also:

AbstractCache#load(PhysicalAddress)

getLRU

private PageTableEntry getLRU()

setMRU

public void setMRU(PageTableEntry pte)

pendingTLBEviction

public cse378.address.VirtualPage pendingTLBEviction()

store

public cse378.address.PhysicalPage store(cse378.address.VirtualAddress addr)

Get a physical page mapping from the page table If none is found, one is created, (and marked dirty)

Parameters:

addr - VirtualAddress of the desired page

getStatus

public Status getStatus()

getCleanMisses

public long getCleanMisses()

getDirtyMisses

public long getDirtyMisses()

getCounts

public java.lang.String getCounts()