diff options
Diffstat (limited to 'src/mem')
| -rw-r--r-- | src/mem/protocol/MOESI_hammer-dir.sm | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/src/mem/protocol/MOESI_hammer-dir.sm b/src/mem/protocol/MOESI_hammer-dir.sm index 1d18fd489..67c375fbc 100644 --- a/src/mem/protocol/MOESI_hammer-dir.sm +++ b/src/mem/protocol/MOESI_hammer-dir.sm @@ -581,7 +581,13 @@ machine(Directory, "AMD Hammer-like protocol") // directory DMA requests must wait for acks from all LLC caches, so // only decrement by 1. // - tbe.NumPendingMsgs := tbe.NumPendingMsgs - 1; + if ((in_msg.Type == CoherenceResponseType:DATA_SHARED) || + (in_msg.Type == CoherenceResponseType:DATA) || + (in_msg.Type == CoherenceResponseType:DATA_EXCLUSIVE)) { + tbe.NumPendingMsgs := tbe.NumPendingMsgs - 1; + } else { + tbe.NumPendingMsgs := tbe.NumPendingMsgs - in_msg.Acks; + } DPRINTF(RubySlicc, "%d\n", tbe.NumPendingMsgs); } } @@ -591,11 +597,6 @@ machine(Directory, "AMD Hammer-like protocol") assert(is_valid(tbe)); assert(in_msg.Type == CoherenceResponseType:UNBLOCKS); DPRINTF(RubySlicc, "%d\n", tbe.NumPendingMsgs); - // - // Note that cache data responses will have an ack count of 2. However, - // directory DMA requests must wait for acks from all LLC caches, so - // only decrement by 1. - // tbe.NumPendingMsgs := tbe.NumPendingMsgs - 1; DPRINTF(RubySlicc, "%d\n", tbe.NumPendingMsgs); } |