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authorAli Saidi <saidi@eecs.umich.edu>2006-10-12 14:18:42 -0400
committerAli Saidi <saidi@eecs.umich.edu>2006-10-12 14:18:42 -0400
commit2c9d506f46141ebc9dfef810babdb0b2031d10c1 (patch)
tree7f5d80090c2f041224b0a11443bb4e80ffe7868b /src/mem/packet.hh
parentba4c224c390916fb489aa7179655c71d7fca1e13 (diff)
parent3ba2ed6aef5a67e2bc66b100680b61f5bca818c8 (diff)
downloadgem5-2c9d506f46141ebc9dfef810babdb0b2031d10c1.tar.xz
Merge zizzer:/bk/newmem
into zeep.pool:/z/saidi/work/m5.newmem.head src/mem/packet.hh: hand merge --HG-- extra : convert_revision : 3f77707360235dc98c6b12a0367ca64a401313df
Diffstat (limited to 'src/mem/packet.hh')
-rw-r--r--src/mem/packet.hh57
1 files changed, 33 insertions, 24 deletions
diff --git a/src/mem/packet.hh b/src/mem/packet.hh
index 7ede48bfd..48b32ec47 100644
--- a/src/mem/packet.hh
+++ b/src/mem/packet.hh
@@ -171,17 +171,17 @@ class Packet
// as well.
enum CommandAttribute
{
- IsRead = 1 << 0,
- IsWrite = 1 << 1,
- IsPrefetch = 1 << 2,
- IsInvalidate = 1 << 3,
- IsRequest = 1 << 4,
- IsResponse = 1 << 5,
- NeedsResponse = 1 << 6,
+ IsRead = 1 << 0,
+ IsWrite = 1 << 1,
+ IsPrefetch = 1 << 2,
+ IsInvalidate = 1 << 3,
+ IsRequest = 1 << 4,
+ IsResponse = 1 << 5,
+ NeedsResponse = 1 << 6,
IsSWPrefetch = 1 << 7,
IsHWPrefetch = 1 << 8,
IsUpgrade = 1 << 9,
- HasData = 1 << 10
+ HasData = 1 << 10
};
public:
@@ -189,18 +189,18 @@ class Packet
enum Command
{
InvalidCmd = 0,
- ReadReq = IsRead | IsRequest | NeedsResponse,
- WriteReq = IsWrite | IsRequest | NeedsResponse | HasData,
- WriteReqNoAck = IsWrite | IsRequest | HasData,
- ReadResp = IsRead | IsResponse | NeedsResponse | HasData,
- WriteResp = IsWrite | IsResponse | NeedsResponse,
+ ReadReq = IsRead | IsRequest | NeedsResponse,
+ WriteReq = IsWrite | IsRequest | NeedsResponse | HasData,
+ WriteReqNoAck = IsWrite | IsRequest | HasData,
+ ReadResp = IsRead | IsResponse | NeedsResponse | HasData,
+ WriteResp = IsWrite | IsResponse | NeedsResponse,
Writeback = IsWrite | IsRequest | HasData,
SoftPFReq = IsRead | IsRequest | IsSWPrefetch | NeedsResponse,
HardPFReq = IsRead | IsRequest | IsHWPrefetch | NeedsResponse,
SoftPFResp = IsRead | IsResponse | IsSWPrefetch
| NeedsResponse | HasData,
HardPFResp = IsRead | IsResponse | IsHWPrefetch
- | NeedsResponse | HasData,
+ | NeedsResponse | HasData,
InvalidateReq = IsInvalidate | IsRequest,
WriteInvalidateReq = IsWrite | IsInvalidate | IsRequest | HasData,
UpgradeReq = IsInvalidate | IsRequest | IsUpgrade,
@@ -222,17 +222,17 @@ class Packet
/** The command field of the packet. */
Command cmd;
- bool isRead() { return (cmd & IsRead) != 0; }
- bool isWrite() { return (cmd & IsWrite) != 0; }
- bool isRequest() { return (cmd & IsRequest) != 0; }
- 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 isRead() const { return (cmd & IsRead) != 0; }
+ bool isWrite() const { return (cmd & IsWrite) != 0; }
+ bool isRequest() const { return (cmd & IsRequest) != 0; }
+ bool isResponse() const { return (cmd & IsResponse) != 0; }
+ bool needsResponse() const { return (cmd & NeedsResponse) != 0; }
+ bool isInvalidate() const { return (cmd & IsInvalidate) != 0; }
+ bool hasData() const { return (cmd & HasData) != 0; }
- bool isCacheFill() { return (flags & CACHE_LINE_FILL) != 0; }
- bool isNoAllocate() { return (flags & NO_ALLOCATE) != 0; }
- bool isCompressed() { return (flags & COMPRESSED) != 0; }
+ bool isCacheFill() const { return (flags & CACHE_LINE_FILL) != 0; }
+ bool isNoAllocate() const { return (flags & NO_ALLOCATE) != 0; }
+ bool isCompressed() const { return (flags & COMPRESSED) != 0; }
bool nic_pkt() { assert("Unimplemented\n" && 0); return false; }
@@ -401,5 +401,14 @@ class Packet
bool intersect(Packet *p);
};
+
+/** This function given a functional packet and a timing packet either satisfies
+ * the timing packet, or updates the timing packet to reflect the updated state
+ * in the timing packet. It returns if the functional packet should continue to
+ * traverse the memory hierarchy or not.
+ */
bool fixPacket(Packet *func, Packet *timing);
+
+std::ostream & operator<<(std::ostream &o, const Packet &p);
+
#endif //__MEM_PACKET_HH