diff options
Diffstat (limited to 'src/mem/packet.hh')
| -rw-r--r-- | src/mem/packet.hh | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/src/mem/packet.hh b/src/mem/packet.hh index 403039d96..176c6f793 100644 --- a/src/mem/packet.hh +++ b/src/mem/packet.hh @@ -46,6 +46,10 @@ struct Packet; typedef Packet* PacketPtr; typedef uint8_t* PacketDataPtr; +//For statistics we need max number of commands, hard code it at +//20 for now. @todo fix later +#define NUM_MEM_CMDS 1 << 9 + /** * A Packet is used to encapsulate a transfer between two objects in * the memory system (e.g., the L1 and L2 cache). (In contrast, a @@ -102,6 +106,9 @@ class Packet public: + /** Used to calculate latencies for each packet.*/ + Tick time; + /** The special destination address indicating that the packet * should be routed based on its address. */ static const short Broadcast = -1; @@ -149,6 +156,8 @@ class Packet IsRequest = 1 << 4, IsResponse = 1 << 5, NeedsResponse = 1 << 6, + IsSWPrefetch = 1 << 7, + IsHWPrefetch = 1 << 8 }; public: @@ -159,13 +168,24 @@ class Packet WriteReq = IsWrite | IsRequest | NeedsResponse, WriteReqNoAck = IsWrite | IsRequest, ReadResp = IsRead | IsResponse, - WriteResp = IsWrite | IsResponse + WriteResp = IsWrite | IsResponse, + Writeback = IsWrite | IsRequest, + SoftPFReq = IsRead | IsRequest | IsSWPrefetch | NeedsResponse, + HardPFReq = IsRead | IsRequest | IsHWPrefetch | NeedsResponse, + SoftPFResp = IsRead | IsRequest | IsSWPrefetch | IsResponse, + HardPFResp = IsRead | IsRequest | IsHWPrefetch | IsResponse }; /** Return the string name of the cmd field (for debugging and * tracing). */ const std::string &cmdString() const; + /** Reutrn the string to a cmd given by idx. */ + const std::string &cmdIdxToString(Command idx); + + /** Return the index of this command. */ + inline int cmdToIndex() const { return (int) cmd; } + /** The command field of the packet. */ Command cmd; |