//Revisit this for multi level coherence
return;
}
+
+ //Send a timing (true) invalidate up if the protocol calls for it
+ coherence->propogateInvalidate(pkt, true);
+
Addr blk_addr = pkt->getAddr() & ~(Addr(blkSize-1));
BlkType *blk = tags->findBlock(pkt);
MSHR *mshr = missQueue->findMSHR(blk_addr);
- if (coherence->hasProtocol()) { //@todo Move this into handle bus req
+ if (coherence->hasProtocol() || pkt->isInvalidate()) {
+ //@todo Move this into handle bus req
//If we find an mshr, and it is in service, we need to NACK or
//invalidate
if (mshr) {
pkt_data = pkt->getPtr<uint8_t>() + offset;
write_data = target->getPtr<uint8_t>();
data_size = pkt->getSize() - offset;
- assert(data_size > pkt->getSize());
+ assert(data_size >= pkt->getSize());
if (data_size > target->getSize())
data_size = target->getSize();
}
if (pkt->isWrite()) {
memcpy(pkt_data, write_data, data_size);
} else {
+ pkt->flags |= SATISFIED;
+ pkt->result = Packet::Success;
memcpy(write_data, pkt_data, data_size);
}
}
pkt_data = pkt->getPtr<uint8_t>() + offset;
write_data = write->getPtr<uint8_t>();
data_size = pkt->getSize() - offset;
- assert(data_size > pkt->getSize());
+ assert(data_size >= pkt->getSize());
if (data_size > write->getSize())
data_size = write->getSize();
}
if (pkt->isWrite()) {
memcpy(pkt_data, write_data, data_size);
} else {
+ pkt->flags |= SATISFIED;
+ pkt->result = Packet::Success;
memcpy(write_data, pkt_data, data_size);
}
}
}
+ if (pkt->isRead()
+ && pkt->result != Packet::Success
+ && otherSidePort == memSidePort) {
+ otherSidePort->sendFunctional(pkt);
+ assert(pkt->result == Packet::Success);
+ }
+ return 0;
} else if (!blk) {
// update the cache state and statistics
if (mshr || !writes.empty()){
Tick
Cache<TagStore,Buffering,Coherence>::snoopProbe(PacketPtr &pkt)
{
- Addr blk_addr = pkt->getAddr() & ~(Addr(blkSize-1));
- BlkType *blk = tags->findBlock(pkt);
- MSHR *mshr = missQueue->findMSHR(blk_addr);
- CacheBlk::State new_state = 0;
- bool satisfy = coherence->handleBusRequest(pkt,blk,mshr, new_state);
- if (satisfy) {
- DPRINTF(Cache, "Cache snooped a %s request for addr %x and "
- "now supplying data, new state is %i\n",
- pkt->cmdString(), blk_addr, new_state);
+ //Send a atomic (false) invalidate up if the protocol calls for it
+ coherence->propogateInvalidate(pkt, false);
+
+ Addr blk_addr = pkt->getAddr() & ~(Addr(blkSize-1));
+ BlkType *blk = tags->findBlock(pkt);
+ MSHR *mshr = missQueue->findMSHR(blk_addr);
+ CacheBlk::State new_state = 0;
+ bool satisfy = coherence->handleBusRequest(pkt,blk,mshr, new_state);
+ if (satisfy) {
+ DPRINTF(Cache, "Cache snooped a %s request for addr %x and "
+ "now supplying data, new state is %i\n",
+ pkt->cmdString(), blk_addr, new_state);
tags->handleSnoop(blk, new_state, pkt);
return hitLatency;
- }
- if (blk)
- DPRINTF(Cache, "Cache snooped a %s request for addr %x, "
- "new state is %i\n",
+ }
+ if (blk)
+ DPRINTF(Cache, "Cache snooped a %s request for addr %x, "
+ "new state is %i\n",
pkt->cmdString(), blk_addr, new_state);
- tags->handleSnoop(blk, new_state);
- return 0;
+ tags->handleSnoop(blk, new_state);
+ return 0;
}