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ScoreHardwareAPI.cc
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ScoreHardwareAPI.cc
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//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 1999 The Regents of the University of California
// Permission to use, copy, modify, and distribute this software and
// its documentation for any purpose, without fee, and without a
// written agreement is hereby granted, provided that the above copyright
// notice and this paragraph and the following two paragraphs appear in
// all copies.
//
// IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
// DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
// LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
// EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE.
//
// THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON
// AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO
// PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
//
//////////////////////////////////////////////////////////////////////////////
//
// BRASS source file
//
// SCORE runtime support
// $Revision: 1.54 $
//
//////////////////////////////////////////////////////////////////////////////
#include <math.h>
#include <string.h>
#include "LEDA/core/list.h"
#include "ScorePage.h"
#include "ScoreSegment.h"
#include "ScoreGraphNode.h"
#include "ScoreSegmentTable.h"
#include "ScoreStream.h"
#include "ScoreRuntime.h"
#include "ScoreSyncEvent.h"
#include "ScoreSimulator.h"
#include "ScoreHardwareAPI.h"
#include "ScoreConfig.h"
// this stores the virtual time of the scheduler.
unsigned int schedulerVirtualTime = 0;
// this is used internally to batch up commands.
list<ScoreSyncEvent *> *commandBatch = NULL;
///////////////////////////////////////////////////////////////////////////////
// getArrayInfo:
// Returns the number of physical pages and segments, and the physical
// size of a CMB.
//
// Parameters:
// numPhysicalCP: pointer to where the number of physical pages should be
// stored.
// numPhysicalCMB: pointer to where the number of physical segment should be
// stored.
// cmbSize: pointer to where the physical size of a CMB should be stored.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int getArrayInfo(unsigned int *numPhysicalCP, unsigned int *numPhysicalCMB,
unsigned int *cmbSize) {
// return the array parameters.
(*numPhysicalCP) = numPhysicalPages;
(*numPhysicalCMB) = numPhysicalSegments;
(*cmbSize) = physicalSegmentSize;
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// getArrayStatus:
// Return the current array status.
//
// Parameters:
// cpStatus: pointer to location to store physical page status.
// cmbStatus: pointer to location to store physical segment status.
// cpMask: mask to specify which CPs we care about.
// cmbMask: mask to specify which CMBs we care about.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int getArrayStatus(ScoreArrayCPStatus *cpStatus,
ScoreArrayCMBStatus *cmbStatus,
char *cpMask, char *cmbMask) {
ScoreSyncEvent *event;
// create the event.
event = new ScoreSyncEvent();
if (event == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate event!" << endl;
return(-1);
}
event->currentTime = schedulerVirtualTime;
event->command = SCORE_EVENT_GETARRAYSTATUS;
event->cpStatus = cpStatus;
event->cmbStatus = cmbStatus;
event->cpMask = cpMask;
event->cmbMask = cmbMask;
if (batchCommandBegin() != 0) {
return(-1);
}
commandBatch->append(event);
if (batchCommandEnd() != 0) {
return(-1);
}
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// batchCommandBegin:
// Begin a command batch.
//
// Parameters: None.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int batchCommandBegin() {
// make sure that there is not a command batch already.
if (commandBatch != NULL) {
cerr << "SCHEDERR: Trying to start another command batch before " <<
"ending current batch!" << endl;
return(-1);
}
// instantiate a new command batch.
commandBatch = new list<ScoreSyncEvent *>();
if (commandBatch == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate command batch!" <<
endl;
return(-1);
}
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// batchCommandEnd:
// Ends a command batch and issue the batch.
//
// Parameters: None.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int batchCommandEnd() {
list_item listItem;
unsigned int maxOffset = 0;
unsigned int getArrayStatus = 0;
unsigned int setSegmentConfigPointers = 0;
unsigned int changeSegmentMode = 0;
unsigned int changeSegmentTRAandPBOandMAX = 0;
unsigned int resetSegmentDoneFlag = 0;
unsigned int getSegmentPointers = 0;
unsigned int memXferPrimToFromCMBs = 0;
unsigned int issueOffset = 0;
ScoreSegment *segmentNode = NULL;
ScoreArrayCPStatus *cpStatus = NULL;
ScoreArrayCMBStatus *cmbStatus = NULL;
char *cpMask = NULL;
char *cmbMask = NULL;
char isRunUntilCommand = 0;
char shouldWaitForACK;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to end a command batch before " <<
"starting a batch!" << endl;
return(-1);
}
// make sure there is something in the command batch.
if (commandBatch->length() == 0) {
// reset the command batch.
{
list_item oldItemIter;
forall_items(oldItemIter, (*commandBatch)) {
ScoreSyncEvent *oldEvent = commandBatch->inf(oldItemIter);
oldEvent->cpStatus = NULL;
oldEvent->cmbStatus = NULL;
delete(oldEvent);
}
}
delete(commandBatch);
commandBatch = NULL;
return(0);
}
// find the maximum offset time for all of the batched commands.
forall_items(listItem, (*commandBatch)) {
ScoreSyncEvent *currentEvent = commandBatch->inf(listItem);
unsigned int currentOffset = issueOffset;
switch(currentEvent->command) {
case SCORE_EVENT_RUNUNTIL:
isRunUntilCommand = 1;
currentOffset = currentOffset + 0; break;
case SCORE_EVENT_GETARRAYSTATUS:
currentOffset = currentOffset + SIM_COST_GETARRAYSTATUS;
cpStatus = currentEvent->cpStatus;
cmbStatus = currentEvent->cmbStatus;
currentEvent->cpStatus = NULL;
currentEvent->cmbStatus = NULL;
cpMask = new char[numPhysicalPages];
bcopy(currentEvent->cpMask, cpMask, numPhysicalPages);
cmbMask = new char[numPhysicalSegments];
bcopy(currentEvent->cmbMask, cmbMask, numPhysicalSegments);
getArrayStatus++;
break;
case SCORE_EVENT_STOPPAGE:
currentOffset = currentOffset + SIM_COST_STOPPAGE; break;
case SCORE_EVENT_STARTPAGE:
currentOffset = currentOffset + SIM_COST_STARTPAGE; break;
case SCORE_EVENT_STOPSEGMENT:
currentOffset = currentOffset + SIM_COST_STOPSEGMENT; break;
case SCORE_EVENT_STARTSEGMENT:
currentOffset = currentOffset + SIM_COST_STARTSEGMENT; break;
case SCORE_EVENT_DUMPPAGESTATE:
// FIX ME! Really should take into account the page state size as a
// variable!
currentOffset = currentOffset + SIM_COST_DUMPPAGESTATE; break;
case SCORE_EVENT_DUMPPAGEFIFO:
// FIX ME! Really should take into account the page FIFO size and
// number of inputs as a variable!
currentOffset = currentOffset + SIM_COST_DUMPPAGEFIFO; break;
case SCORE_EVENT_LOADPAGECONFIG:
// FIX ME! Really should take into account the page config size as a
// variable!
currentOffset = currentOffset + SIM_COST_LOADPAGECONFIG; break;
case SCORE_EVENT_LOADPAGESTATE:
// FIX ME! Really should take into account the page config size as a
// variable!
currentOffset = currentOffset + SIM_COST_LOADPAGESTATE; break;
case SCORE_EVENT_LOADPAGEFIFO:
// FIX ME! Really should take into account the page FIFO size and
// number of inputs as a variable!
currentOffset = currentOffset + SIM_COST_LOADPAGEFIFO; break;
case SCORE_EVENT_GETSEGMENTPOINTERS:
currentOffset = currentOffset + SIM_COST_GETSEGMENTPOINTERS; break;
getSegmentPointers++; segmentNode = (ScoreSegment *) currentEvent->node;
break;
case SCORE_EVENT_DUMPSEGMENTFIFO:
// FIX ME! Really should take into account the segment FIFO size and
// number of inputs as a variable!
currentOffset = currentOffset + SIM_COST_DUMPSEGMENTFIFO; break;
case SCORE_EVENT_SETSEGMENTCONFIGPOINTERS:
currentOffset = currentOffset + SIM_COST_SETSEGMENTCONFIGPOINTERS;
setSegmentConfigPointers++; break;
case SCORE_EVENT_CHANGESEGMENTMODE:
currentOffset = currentOffset + SIM_COST_CHANGESEGMENTMODE;
changeSegmentMode++; break;
case SCORE_EVENT_CHANGESEGMENTTRAANDPBOANDMAX:
currentOffset = currentOffset + SIM_COST_CHANGESEGMENTTRAANDPBOANDMAX;
changeSegmentTRAandPBOandMAX++; break;
case SCORE_EVENT_RESETSEGMENTDONEFLAG:
currentOffset = currentOffset + SIM_COST_RESETSEGMENTDONEFLAG;
resetSegmentDoneFlag++; break;
case SCORE_EVENT_LOADSEGMENTFIFO:
// FIX ME! Really should take into account the segment FIFO size and
// number of inputs as a variable!
currentOffset = currentOffset + SIM_COST_LOADSEGMENTFIFO; break;
case SCORE_EVENT_MEMXFERPRIMARYTOCMB:
// FIX ME! Really should take into account the size of the memory to
// transfer.
currentOffset = currentOffset +
((unsigned int)
ceil(SIM_COST_MEMXFERPRIMARYTOCMB*currentEvent->xferSize));
memXferPrimToFromCMBs++; break;
case SCORE_EVENT_MEMXFERCMBTOPRIMARY:
// FIX ME! Really should take into account the size of the memory to
// transfer.
currentOffset = currentOffset +
((unsigned int)
ceil(SIM_COST_MEMXFERCMBTOPRIMARY*currentEvent->xferSize));
memXferPrimToFromCMBs++; break;
case SCORE_EVENT_MEMXFERCMBTOCMB:
// FIX ME! Really should take into account the size of the memory to
// transfer.
currentOffset = currentOffset +
((unsigned int)
ceil(SIM_COST_MEMXFERCMBTOCMB*currentEvent->xferSize));
break;
case SCORE_EVENT_CONNECTSTREAM:
currentOffset = currentOffset + SIM_COST_CONNECTSTREAM; break;
default:
cerr << "SCHEDERR: Unrecognized event in the command batch! " <<
"(event=" << currentEvent->command << ")" << endl;
// reset the command batch.
{
list_item oldItemIter;
forall_items(oldItemIter, (*commandBatch)) {
ScoreSyncEvent *oldEvent = commandBatch->inf(oldItemIter);
oldEvent->cpStatus = NULL;
oldEvent->cmbStatus = NULL;
delete(oldEvent);
}
}
delete(commandBatch);
commandBatch = NULL;
return(-1);
}
if (currentOffset > maxOffset) {
maxOffset = currentOffset;
}
if (!isPseudoIdeal) {
#if SCHED_VIRT_TIME_BREAKDOWN && NO_COST
#else
issueOffset++;
#endif
}
}
// if we are trying to get array status, set or get segment config/pointers,
// or run-until then make sure only one command is in the batch.
if ((getArrayStatus > 0) ||
(setSegmentConfigPointers > 0) || (getSegmentPointers > 0) ||
(changeSegmentMode > 0) || (changeSegmentTRAandPBOandMAX > 0) ||
(resetSegmentDoneFlag > 0) ||
(isRunUntilCommand)) {
if (commandBatch->length() != 1) {
cerr << "SCHEDERR: Attempting to batch a get status, a segment " <<
"config set/get, run-until with other commands!" << endl;
// reset the command batch.
{
list_item oldItemIter;
forall_items(oldItemIter, (*commandBatch)) {
ScoreSyncEvent *oldEvent = commandBatch->inf(oldItemIter);
oldEvent->cpStatus = NULL;
oldEvent->cmbStatus = NULL;
delete(oldEvent);
}
}
delete(commandBatch);
commandBatch = NULL;
return(-1);
}
}
// only flag that we need to wait for an ACK if we are not getting a
// return value already.
if ((getArrayStatus > 0) ||
(getSegmentPointers > 0) ||
(isRunUntilCommand)) {
shouldWaitForACK = 0;
} else {
shouldWaitForACK = 1;
}
// make sure not more than 1 primary<->CMB transfer is happening.
if (memXferPrimToFromCMBs > 1) {
cerr << "SCHEDERR: Attempting to batch more than 1 primary<->CMB " <<
"transfer at a time!" << endl;
// reset the command batch.
{
list_item oldItemIter;
forall_items(oldItemIter, (*commandBatch)) {
ScoreSyncEvent *oldEvent = commandBatch->inf(oldItemIter);
oldEvent->cpStatus = NULL;
oldEvent->cmbStatus = NULL;
delete(oldEvent);
}
}
delete(commandBatch);
commandBatch = NULL;
return(-1);
}
// FIX ME! SHOULD CHECK FOR CONFLICTS IN USAGES! (USING SAME RESOURCE
// TWICE!).
// write the command batch to the stream sequentially.
issueOffset = 0;
forall_items(listItem, (*commandBatch)) {
ScoreSyncEvent *currentEvent = commandBatch->inf(listItem);
currentEvent->currentTime = currentEvent->currentTime + issueOffset;
if (!isPseudoIdeal) {
#if SCHED_VIRT_TIME_BREAKDOWN && NO_COST
#else
issueOffset++;
#endif
}
if (VERBOSEDEBUG || DEBUG) {
cerr << "SCHED: SENDING COMMAND " << eventNameMap[currentEvent->command]
<< " WITH TIME " << currentEvent->currentTime << endl;
}
STREAM_WRITE_RT(toSimulator, currentEvent);
// if we are supposed to wait for acknowledgement, then wait for it.
if (shouldWaitForACK) {
ScoreSyncEvent *nextEvent = 0;
STREAM_READ_RT(fromSimulator,nextEvent);
// make sure got an acknowledgement.
if (nextEvent->command != SCORE_EVENT_ACK) {
cerr << "SCHEDERR: Did not get SCORE_EVENT_ACK! " <<
"(event=" << eventNameMap[nextEvent->command] << ")" << endl;
{
list_item oldItemIter;
forall_items(oldItemIter, (*commandBatch)) {
ScoreSyncEvent *oldEvent = commandBatch->inf(oldItemIter);
oldEvent->cpStatus = NULL;
oldEvent->cmbStatus = NULL;
delete(oldEvent);
}
}
delete(commandBatch);
commandBatch = NULL;
return(-1);
}
}
}
schedulerVirtualTime = schedulerVirtualTime + maxOffset;
// reset the command batch.
delete(commandBatch);
commandBatch = NULL;
// if we are waiting for a reply, then wait for the reply.
if ((getArrayStatus > 0) || (getSegmentPointers > 0)) {
ScoreSyncEvent *nextEvent = 0;
STREAM_READ_RT(fromSimulator,nextEvent);
// if we are trying to get array status, then wait for the return value.
if (getArrayStatus > 0) {
unsigned int i;
ScoreArrayCPStatus *newCPStatus = nextEvent->cpStatus;
ScoreArrayCMBStatus *newCMBStatus = nextEvent->cmbStatus;
// make sure we got back the right event.
if (nextEvent->command != SCORE_EVENT_RETURNARRAYSTATUS) {
cerr << "SCHEDERR: Did not get SCORE_EVENT_RETURNARRAYSTATUS! " <<
"(event=" << eventNameMap[nextEvent->command] << ")" << endl;
return(-1);
}
// copy the results over.
for (i = 0; i < numPhysicalPages; i++) {
if (cpMask[i]) {
cpStatus[i].isDone = newCPStatus[i].isDone;
cpStatus[i].isStalled = newCPStatus[i].isStalled;
cpStatus[i].stallCount = newCPStatus[i].stallCount;
cpStatus[i].currentState = newCPStatus[i].currentState;
cpStatus[i].emptyInputs = newCPStatus[i].emptyInputs;
cpStatus[i].fullOutputs = newCPStatus[i].fullOutputs;
// if there is a previous inputConsumption/outputProduction,
// free them first.
if (cpStatus[i].inputConsumption != NULL) {
delete(cpStatus[i].inputConsumption);
cpStatus[i].inputConsumption = NULL;
}
if (cpStatus[i].outputProduction != NULL) {
delete(cpStatus[i].outputProduction);
cpStatus[i].outputProduction = NULL;
}
cpStatus[i].inputConsumption = newCPStatus[i].inputConsumption;
cpStatus[i].outputProduction = newCPStatus[i].outputProduction;
// the pointers are reset so they will not be freed.
newCPStatus[i].inputConsumption = NULL;
newCPStatus[i].outputProduction = NULL;
// if there is a previous inputFIFONumTokens
// free them first.
if (cpStatus[i].inputFIFONumTokens != NULL) {
delete(cpStatus[i].inputFIFONumTokens);
cpStatus[i].inputFIFONumTokens = NULL;
}
cpStatus[i].inputFIFONumTokens = newCPStatus[i].inputFIFONumTokens;
// the pointers are reset so they will not be freed.
newCPStatus[i].inputFIFONumTokens = NULL;
}
}
for (i = 0; i < numPhysicalSegments; i++) {
if (cmbMask[i]) {
cmbStatus[i].isDone = newCMBStatus[i].isDone;
cmbStatus[i].isStalled = newCMBStatus[i].isStalled;
cmbStatus[i].isFaulted = newCMBStatus[i].isFaulted;
cmbStatus[i].stallCount = newCMBStatus[i].stallCount;
cmbStatus[i].faultedAddr = newCMBStatus[i].faultedAddr;
cmbStatus[i].readAddr = newCMBStatus[i].readAddr;
cmbStatus[i].writeAddr = newCMBStatus[i].writeAddr;
cmbStatus[i].readCount = newCMBStatus[i].readCount;
cmbStatus[i].writeCount = newCMBStatus[i].writeCount;
cmbStatus[i].emptyInputs = newCMBStatus[i].emptyInputs;
cmbStatus[i].fullOutputs = newCMBStatus[i].fullOutputs;
// if there is a previous inputFIFONumTokens/outputFIFONumTokens,
// free them first.
if (cmbStatus[i].inputFIFONumTokens != NULL) {
delete(cmbStatus[i].inputFIFONumTokens);
cmbStatus[i].inputFIFONumTokens = NULL;
}
cmbStatus[i].inputFIFONumTokens = newCMBStatus[i].inputFIFONumTokens;
// the pointers are reset so they will not be freed.
newCMBStatus[i].inputFIFONumTokens = NULL;
}
}
delete(cpMask);
cpMask = NULL;
delete(cmbMask);
cmbMask = NULL;
}
// if we are trying to get segment pointers, then wait for the return
// value.
if (getSegmentPointers > 0) {
// make sure we got back the right event.
if (nextEvent->command != SCORE_EVENT_RETURNSEGMENTPOINTERS) {
cerr << "SCHEDERR: Did not get SCORE_EVENT_RETURNSEGMENTPOINTERS! " <<
"(event=" << eventNameMap[nextEvent->command] << ")" << endl;
return(-1);
}
// set the values.
segmentNode->readAddr = nextEvent->readAddr;
segmentNode->writeAddr = nextEvent->writeAddr;
}
delete(nextEvent);
}
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// stopPage:
// Stops a physical page.
//
// Parameters:
// page: a pointer to the page to stop.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int stopPage(ScorePage *page) {
ScoreSyncEvent *event;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to issue a command before starting a batch!" <<
endl;
return(-1);
}
// create the event.
event = new ScoreSyncEvent();
if (event == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate event!" << endl;
return(-1);
}
event->currentTime = schedulerVirtualTime;
event->command = SCORE_EVENT_STOPPAGE;
event->node = page;
commandBatch->append(event);
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// startPage:
// Starts a physical page.
//
// Parameters:
// page: a pointer to the page to start.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int startPage(ScorePage *page) {
ScoreSyncEvent *event;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to issue a command before starting a batch!" <<
endl;
return(-1);
}
// create the event.
event = new ScoreSyncEvent();
if (event == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate event!" << endl;
return(-1);
}
event->currentTime = schedulerVirtualTime;
event->command = SCORE_EVENT_STARTPAGE;
event->node = page;
commandBatch->append(event);
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// stopSegment:
// Stops a physical segment.
//
// Parameters:
// segment: a pointer to the segment to stop.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int stopSegment(ScoreSegment *segment) {
ScoreSyncEvent *event;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to issue a command before starting a batch!" <<
endl;
return(-1);
}
// create the event.
event = new ScoreSyncEvent();
if (event == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate event!" << endl;
return(-1);
}
event->currentTime = schedulerVirtualTime;
event->command = SCORE_EVENT_STOPSEGMENT;
event->node = segment;
commandBatch->append(event);
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// startSegment:
// Starts a physical segment.
//
// Parameters:
// segment: a pointer to the segment to start.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int startSegment(ScoreSegment *segment) {
ScoreSyncEvent *event;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to issue a command before starting a batch!" <<
endl;
return(-1);
}
// create the event.
event = new ScoreSyncEvent();
if (event == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate event!" << endl;
return(-1);
}
event->currentTime = schedulerVirtualTime;
event->command = SCORE_EVENT_STARTSEGMENT;
event->node = segment;
commandBatch->append(event);
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// dumpPageState:
// Dumps a page state to a memory segment.
//
// Parameters:
// page: a pointer to the page whose state is to be dumped.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int dumpPageState(ScorePage *page) {
ScoreSyncEvent *event;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to issue a command before starting a batch!" <<
endl;
return(-1);
}
// create the event.
event = new ScoreSyncEvent();
if (event == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate event!" << endl;
return(-1);
}
event->currentTime = schedulerVirtualTime;
event->command = SCORE_EVENT_DUMPPAGESTATE;
event->node = page;
commandBatch->append(event);
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// dumpPageFIFO:
// Dumps a page FIFOs to a memory segment.
//
// Parameters:
// page: a pointer to the page whose FIFOs is to be dumped.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int dumpPageFIFO(ScorePage *page) {
ScoreSyncEvent *event;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to issue a command before starting a batch!" <<
endl;
return(-1);
}
// create the event.
event = new ScoreSyncEvent();
if (event == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate event!" << endl;
return(-1);
}
event->currentTime = schedulerVirtualTime;
event->command = SCORE_EVENT_DUMPPAGEFIFO;
event->node = page;
commandBatch->append(event);
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// loadPageConfig:
// Loads a page config from a memory segment.
//
// Parameters:
// page: a pointer to the page whose config is to be loaded.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int loadPageConfig(ScorePage *page) {
ScoreSyncEvent *event;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to issue a command before starting a batch!" <<
endl;
return(-1);
}
// create the event.
event = new ScoreSyncEvent();
if (event == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate event!" << endl;
return(-1);
}
event->currentTime = schedulerVirtualTime;
event->command = SCORE_EVENT_LOADPAGECONFIG;
event->node = page;
commandBatch->append(event);
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// loadPageState:
// Loads a page state from a memory segment.
//
// Parameters:
// page: a pointer to the page whose state is to be loaded.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int loadPageState(ScorePage *page) {
ScoreSyncEvent *event;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to issue a command before starting a batch!" <<
endl;
return(-1);
}
// create the event.
event = new ScoreSyncEvent();
if (event == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate event!" << endl;
return(-1);
}
event->currentTime = schedulerVirtualTime;
event->command = SCORE_EVENT_LOADPAGESTATE;
event->node = page;
commandBatch->append(event);
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// loadPageFIFO:
// Loads a page FIFOs from a memory segment.
//
// Parameters:
// page: a pointer to the page whose FIFOs is to be loaded.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int loadPageFIFO(ScorePage *page) {
ScoreSyncEvent *event;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to issue a command before starting a batch!" <<
endl;
return(-1);
}
// create the event.
event = new ScoreSyncEvent();
if (event == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate event!" << endl;
return(-1);
}
event->currentTime = schedulerVirtualTime;
event->command = SCORE_EVENT_LOADPAGEFIFO;
event->node = page;
commandBatch->append(event);
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// getSegmentPointers:
// Saves segment pointers to the processor.
//
// Parameters:
// segment: a pointer to the segment where the pointers should be saved.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int getSegmentPointers(ScoreSegment *segment) {
ScoreSyncEvent *event;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to issue a command before starting a batch!" <<
endl;
return(-1);
}
// create the event.
event = new ScoreSyncEvent();
if (event == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate event!" << endl;
return(-1);
}
event->currentTime = schedulerVirtualTime;
event->command = SCORE_EVENT_GETSEGMENTPOINTERS;
event->node = segment;
commandBatch->append(event);
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// dumpSegmentFIFO:
// Dumps a segment FIFOs to a physical memory segment.
//
// Parameters:
// segment: a pointer to the segment whose FIFOs is to be dumped.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int dumpSegmentFIFO(ScoreSegment *segment) {
ScoreSyncEvent *event;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to issue a command before starting a batch!" <<
endl;
return(-1);
}
// create the event.
event = new ScoreSyncEvent();
if (event == NULL) {
cerr << "SCHEDERR: Insufficient memory to instantiate event!" << endl;
return(-1);
}
event->currentTime = schedulerVirtualTime;
event->command = SCORE_EVENT_DUMPSEGMENTFIFO;
event->node = segment;
commandBatch->append(event);
return(0);
}
///////////////////////////////////////////////////////////////////////////////
// setSegmentConfigPointers:
// Sets a segment configuration and pointers from the processor.
//
// Parameters:
// segment: a pointer to the segment whose configuration and pointers are
// to be set.
//
// Return value:
// 0 if successful; -1 if not successful.
///////////////////////////////////////////////////////////////////////////////
int setSegmentConfigPointers(ScoreSegment *segment) {
ScoreSyncEvent *event;
// make sure there is a command batch.
if (commandBatch == NULL) {
cerr << "SCHEDERR: Trying to issue a command before starting a batch!" <<
endl;
return(-1);