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-rw-r--r--src/mem/packet.hh15
1 files changed, 9 insertions, 6 deletions
diff --git a/src/mem/packet.hh b/src/mem/packet.hh
index 4d57aee75..7ec061710 100644
--- a/src/mem/packet.hh
+++ b/src/mem/packet.hh
@@ -58,6 +58,8 @@ typedef std::list<PacketPtr> PacketList;
#define NO_ALLOCATE 1 << 5
#define SNOOP_COMMIT 1 << 6
+//for now. @todo fix later
+#define NUM_MEM_CMDS 1 << 11
/**
* 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
@@ -173,13 +175,10 @@ class Packet
NeedsResponse = 1 << 6,
IsSWPrefetch = 1 << 7,
IsHWPrefetch = 1 << 8,
- HasData = 1 << 9
+ IsUpgrade = 1 << 9,
+ HasData = 1 << 10
};
-//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
@@ -199,7 +198,7 @@ class Packet
| NeedsResponse | HasData,
InvalidateReq = IsInvalidate | IsRequest,
WriteInvalidateReq = IsWrite | IsInvalidate | IsRequest | HasData,
- UpgradeReq = IsInvalidate | IsRequest,
+ UpgradeReq = IsInvalidate | IsRequest | IsUpgrade,
ReadExReq = IsRead | IsInvalidate | IsRequest | NeedsResponse,
ReadExResp = IsRead | IsInvalidate | IsResponse
| NeedsResponse | HasData
@@ -326,6 +325,10 @@ class Packet
int icmd = (int)cmd;
icmd &= ~(IsRequest);
icmd |= IsResponse;
+ if (isRead())
+ icmd |= HasData;
+ if (isWrite())
+ icmd &= ~HasData;
cmd = (Command)icmd;
dest = src;
srcValid = false;