diff options
Diffstat (limited to 'src/mem/packet.hh')
| -rw-r--r-- | src/mem/packet.hh | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/src/mem/packet.hh b/src/mem/packet.hh index 56c4caffe..4d57aee75 100644 --- a/src/mem/packet.hh +++ b/src/mem/packet.hh @@ -58,10 +58,6 @@ typedef std::list<PacketPtr> PacketList; #define NO_ALLOCATE 1 << 5 #define SNOOP_COMMIT 1 << 6 -//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 @@ -164,6 +160,8 @@ class Packet private: /** List of command attributes. */ + // If you add a new CommandAttribute, make sure to increase NUM_MEM_CMDS + // as well. enum CommandAttribute { IsRead = 1 << 0, @@ -174,29 +172,37 @@ class Packet IsResponse = 1 << 5, NeedsResponse = 1 << 6, IsSWPrefetch = 1 << 7, - IsHWPrefetch = 1 << 8 + IsHWPrefetch = 1 << 8, + HasData = 1 << 9 }; +//For statistics we need max number of commands, hard code it at +//20 for now. @todo fix later +#define NUM_MEM_CMDS 1 << 10 + public: /** List of all commands associated with a packet. */ enum Command { InvalidCmd = 0, ReadReq = IsRead | IsRequest | NeedsResponse, - WriteReq = IsWrite | IsRequest | NeedsResponse, - WriteReqNoAck = IsWrite | IsRequest, - ReadResp = IsRead | IsResponse | NeedsResponse, + WriteReq = IsWrite | IsRequest | NeedsResponse | HasData, + WriteReqNoAck = IsWrite | IsRequest | HasData, + ReadResp = IsRead | IsResponse | NeedsResponse | HasData, WriteResp = IsWrite | IsResponse | NeedsResponse, - Writeback = IsWrite | IsRequest, + Writeback = IsWrite | IsRequest | HasData, SoftPFReq = IsRead | IsRequest | IsSWPrefetch | NeedsResponse, HardPFReq = IsRead | IsRequest | IsHWPrefetch | NeedsResponse, - SoftPFResp = IsRead | IsResponse | IsSWPrefetch | NeedsResponse, - HardPFResp = IsRead | IsResponse | IsHWPrefetch | NeedsResponse, + SoftPFResp = IsRead | IsResponse | IsSWPrefetch + | NeedsResponse | HasData, + HardPFResp = IsRead | IsResponse | IsHWPrefetch + | NeedsResponse | HasData, InvalidateReq = IsInvalidate | IsRequest, - WriteInvalidateReq = IsWrite | IsInvalidate | IsRequest, + WriteInvalidateReq = IsWrite | IsInvalidate | IsRequest | HasData, UpgradeReq = IsInvalidate | IsRequest, ReadExReq = IsRead | IsInvalidate | IsRequest | NeedsResponse, - ReadExResp = IsRead | IsInvalidate | IsResponse | NeedsResponse + ReadExResp = IsRead | IsInvalidate | IsResponse + | NeedsResponse | HasData }; /** Return the string name of the cmd field (for debugging and @@ -218,6 +224,7 @@ class Packet bool isResponse() { return (cmd & IsResponse) != 0; } bool needsResponse() { return (cmd & NeedsResponse) != 0; } bool isInvalidate() { return (cmd & IsInvalidate) != 0; } + bool hasData() { return (cmd & HasData) != 0; } bool isCacheFill() { return (flags & CACHE_LINE_FILL) != 0; } bool isNoAllocate() { return (flags & NO_ALLOCATE) != 0; } |