com.cmpware.cmp.system.memory
Class SPURS

java.lang.Object
  com.cmpware.cmp.SystemMemory
      com.cmpware.cmp.system.memory.SPURS

public class SPURS
extends SystemMemory

This implements the memory architecture for the SPURS processor. Currently, this sets of the SPE shared memory regions in the PPE. Note that while many memory models are parameterized and can be used with a variety of multiprocessor models, this is highly specific to the Cell BE and should not be used elsewhere.

Copyright (c) 2007 Cmpware, Inc. All Rights Reserved.

Author:

SAG

Field Summary

static int	BP_BASE The start of the SPE shared memory
static java.lang.String	copyright Copyright string
static int	PPE_LOCAL_MEMORY_SIZE The size of the PPE Local Memory
static int	SPE_LOCAL_MEMORY_SIZE The size of the SPE Local Memory (256K bytes)
static int	SPE_MEMORY_RANGE The range in the SPU memory map occupied by the SPE Local Memory
static int	SPE_PROBLEM_STATE_OFFSET The offset of the problem state area (256K bytes)
static int	SPU_COUNT The number of SPUs
static int	SPU_WrOutIntrMbox
static int	SPU_WrOutMbox

Constructor Summary

SPURS()

Method Summary

void	configureMemory(Multiprocessor mp) This method is called to build and configure the memory system for the newly allocated processor array.

Methods inherited from class com.cmpware.cmp.SystemMemory

get

Methods inherited from class java.lang.Object

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

Field Detail

copyright

public static final java.lang.String copyright

Copyright string

See Also:

Constant Field Values

SPU_WrOutMbox

public static final int SPU_WrOutMbox

See Also:

Constant Field Values

SPU_WrOutIntrMbox

public static final int SPU_WrOutIntrMbox

See Also:

Constant Field Values

SPU_COUNT

public static int SPU_COUNT

The number of SPUs

BP_BASE

public static int BP_BASE

The start of the SPE shared memory

SPE_MEMORY_RANGE

public static int SPE_MEMORY_RANGE

The range in the SPU memory map occupied by the SPE Local Memory

SPE_LOCAL_MEMORY_SIZE

public static int SPE_LOCAL_MEMORY_SIZE

The size of the SPE Local Memory (256K bytes)

SPE_PROBLEM_STATE_OFFSET

public static int SPE_PROBLEM_STATE_OFFSET

The offset of the problem state area (256K bytes)

PPE_LOCAL_MEMORY_SIZE

public static int PPE_LOCAL_MEMORY_SIZE

The size of the PPE Local Memory

Constructor Detail

SPURS

public SPURS()

Method Detail

configureMemory

public void configureMemory(Multiprocessor mp)
                     throws SystemMemoryException

Description copied from class: SystemMemory

This method is called to build and configure the memory system for the newly allocated processor array. In particular, shared memories should be allocated and connected to processors here. This method may also be used to adding additional banks of local memories or manipulating the default local memory, although this could also be done locally.

Specified by:

configureMemory in class SystemMemory

Parameters:

mp - The multiprocessor.

Throws:

SystemMemoryException - if there is a problem allocating or using the memory objects.