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Diffstat (limited to 'src/mem/cache/tags/iic.cc')
-rw-r--r--src/mem/cache/tags/iic.cc102
1 files changed, 4 insertions, 98 deletions
diff --git a/src/mem/cache/tags/iic.cc b/src/mem/cache/tags/iic.cc
index 1377c8613..bf1d9ece4 100644
--- a/src/mem/cache/tags/iic.cc
+++ b/src/mem/cache/tags/iic.cc
@@ -711,8 +711,8 @@ IIC::invalidateBlk(Addr addr)
}
void
-IIC::readData(IICTag *blk, uint8_t *data){
-// assert(cache->doData());
+IIC::readData(IICTag *blk, uint8_t *data)
+{
assert(blk->size <= trivialSize || blk->numData > 0);
int data_size = blk->size;
if (data_size > trivialSize) {
@@ -729,8 +729,8 @@ IIC::readData(IICTag *blk, uint8_t *data){
void
IIC::writeData(IICTag *blk, uint8_t *write_data, int size,
- PacketList & writebacks){
-// assert(cache->doData());
+ PacketList & writebacks)
+{
assert(size < blkSize || !blk->isCompressed());
DPRINTF(IIC, "Writing %d bytes to %x\n", size,
blk->tag<<tagShift);
@@ -750,10 +750,6 @@ IIC::writeData(IICTag *blk, uint8_t *write_data, int size,
// can free data blocks
for (int i=num_subs; i < blk->numData; ++i){
// decrement reference count and compare to zero
- /**
- * @todo
- * Make this work with copying.
- */
if (--dataReferenceCount[blk->data_ptr[i]] == 0) {
freeDataBlock(blk->data_ptr[i]);
}
@@ -775,96 +771,6 @@ IIC::writeData(IICTag *blk, uint8_t *write_data, int size,
}
-/**
- * @todo This code can break if the src is evicted to get a tag for the dest.
- */
-void
-IIC::doCopy(Addr source, Addr dest, PacketList &writebacks)
-{
-//Copy unsuported now
-#if 0
- IICTag *dest_tag = findBlock(dest);
-
- if (dest_tag) {
- for (int i = 0; i < dest_tag->numData; ++i) {
- if (--dataReferenceCount[dest_tag->data_ptr[i]] == 0) {
- freeDataBlock(dest_tag->data_ptr[i]);
- }
- }
- // Reset replacement entry
- } else {
- dest_tag = getFreeTag(hash(dest), writebacks);
- dest_tag->re = (void*) repl->add(dest_tag - tagStore);
- dest_tag->set = hash(dest);
- dest_tag->tag = extractTag(dest);
- dest_tag->status = BlkValid | BlkWritable;
- }
- // Find the source tag here since it might move if we need to find a
- // tag for the destination.
- IICTag *src_tag = findBlock(source);
- assert(src_tag);
- assert(!cache->doData() || src_tag->size <= trivialSize
- || src_tag->numData > 0);
- // point dest to source data and inc counter
- for (int i = 0; i < src_tag->numData; ++i) {
- dest_tag->data_ptr[i] = src_tag->data_ptr[i];
- ++dataReferenceCount[dest_tag->data_ptr[i]];
- }
-
- // Maintain fast access data.
- memcpy(dest_tag->data, src_tag->data, blkSize);
-
- dest_tag->xc = src_tag->xc;
- dest_tag->size = src_tag->size;
- dest_tag->numData = src_tag->numData;
- if (src_tag->numData == 0) {
- // Data is stored in the trivial data, just copy it.
- memcpy(dest_tag->trivialData, src_tag->trivialData, src_tag->size);
- }
-
- dest_tag->status |= BlkDirty;
- if (dest_tag->size < blkSize) {
- dest_tag->status |= BlkCompressed;
- } else {
- dest_tag->status &= ~BlkCompressed;
- }
-#endif
-}
-
-void
-IIC::fixCopy(Packet * &pkt, PacketList &writebacks)
-{
-#if 0
- // if reference counter is greater than 1, do copy
- // else do write
- Addr blk_addr = blkAlign(pkt->getAddr);
- IICTag* blk = findBlock(blk_addr);
-
- if (blk->numData > 0 && dataReferenceCount[blk->data_ptr[0]] != 1) {
- // copy the data
- // Mark the block as referenced so it doesn't get replaced.
- blk->status |= BlkReferenced;
- for (int i = 0; i < blk->numData; ++i){
- unsigned long new_data = getFreeDataBlock(writebacks);
- // Need to refresh pointer
- /**
- * @todo Remove this refetch once we change IIC to pointer based
- */
- blk = findBlock(blk_addr);
- assert(blk);
- if (cache->doData()) {
- memcpy(&(dataBlks[new_data][0]),
- &(dataBlks[blk->data_ptr[i]][0]),
- subSize);
- }
- dataReferenceCount[blk->data_ptr[i]]--;
- dataReferenceCount[new_data]++;
- blk->data_ptr[i] = new_data;
- }
- }
-#endif
-}
-
void
IIC::cleanupRefs()
{