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Diffstat (limited to 'src/dev/ide_disk.cc')
-rw-r--r--src/dev/ide_disk.cc15
1 files changed, 13 insertions, 2 deletions
diff --git a/src/dev/ide_disk.cc b/src/dev/ide_disk.cc
index a67318b68..f0c8c8668 100644
--- a/src/dev/ide_disk.cc
+++ b/src/dev/ide_disk.cc
@@ -334,6 +334,7 @@ IdeDisk::doDmaTransfer()
void
IdeDisk::dmaPrdReadDone()
{
+
DPRINTF(IdeDisk,
"PRD: baseAddr:%#x (%#x) byteCount:%d (%d) eot:%#x sector:%d\n",
curPrd.getBaseAddr(), pciToDma(curPrd.getBaseAddr()),
@@ -465,6 +466,8 @@ IdeDisk::doDmaDataWrite()
bytesRead += SectorSize;
cmdBytesLeft -= SectorSize;
}
+ DPRINTF(IdeDisk, "doDmaWrite, bytesRead: %d cmdBytesLeft: %d\n",
+ bytesRead, cmdBytesLeft);
schedule(dmaWriteWaitEvent, curTick() + totalDiskDelay);
}
@@ -472,7 +475,7 @@ IdeDisk::doDmaDataWrite()
void
IdeDisk::doDmaWrite()
{
-
+ DPRINTF(IdeDisk, "doDmaWrite: rescheduling\n");
if (!dmaWriteCG) {
// clear out the data buffer
dmaWriteCG = new ChunkGenerator(curPrd.getBaseAddr(),
@@ -480,17 +483,22 @@ IdeDisk::doDmaWrite()
}
if (ctrl->dmaPending() || ctrl->getState() != SimObject::Running) {
schedule(dmaWriteWaitEvent, curTick() + DMA_BACKOFF_PERIOD);
+ DPRINTF(IdeDisk, "doDmaWrite: rescheduling\n");
return;
} else if (!dmaWriteCG->done()) {
assert(dmaWriteCG->complete() < MAX_DMA_SIZE);
ctrl->dmaWrite(pciToDma(dmaWriteCG->addr()), dmaWriteCG->size(),
&dmaWriteWaitEvent, dataBuffer + dmaWriteCG->complete());
+ DPRINTF(IdeDisk, "doDmaWrite: not done curPrd byte count %d, eot %#x\n",
+ curPrd.getByteCount(), curPrd.getEOT());
dmaWriteBytes += dmaWriteCG->size();
dmaWriteTxs++;
if (dmaWriteCG->size() == TheISA::PageBytes)
dmaWriteFullPages++;
dmaWriteCG->next();
} else {
+ DPRINTF(IdeDisk, "doDmaWrite: done curPrd byte count %d, eot %#x\n",
+ curPrd.getByteCount(), curPrd.getEOT());
assert(dmaWriteCG->done());
delete dmaWriteCG;
dmaWriteCG = NULL;
@@ -501,6 +509,8 @@ IdeDisk::doDmaWrite()
void
IdeDisk::dmaWriteDone()
{
+ DPRINTF(IdeDisk, "doWriteDone: curPrd byte count %d, eot %#x cmd bytes left:%d\n",
+ curPrd.getByteCount(), curPrd.getEOT(), cmdBytesLeft);
// check for the EOT
if (curPrd.getEOT()) {
assert(cmdBytesLeft == 0);
@@ -636,7 +646,7 @@ IdeDisk::startCommand()
cmdBytes = cmdBytesLeft = (256 * SectorSize);
else
cmdBytes = cmdBytesLeft = (cmdReg.sec_count * SectorSize);
-
+ DPRINTF(IdeDisk, "Setting cmdBytesLeft to %d\n", cmdBytesLeft);
curSector = getLBABase();
devState = Prepare_Data_Out;
@@ -654,6 +664,7 @@ IdeDisk::startCommand()
cmdBytes = cmdBytesLeft = (256 * SectorSize);
else
cmdBytes = cmdBytesLeft = (cmdReg.sec_count * SectorSize);
+ DPRINTF(IdeDisk, "Setting cmdBytesLeft to %d in readdma\n", cmdBytesLeft);
curSector = getLBABase();