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mem: Add a generic id field to the packet trace

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This patch adds an optional generic 64-bit identifier field to the
packet trace. This can be used to store the sequential number of the
instruction that gave rise to the packet, thread id, master id,
"sub"-master within a larger module etc. As the field is optional it
has a marginal cost if not used.
This commit is contained in:
Andreas Hansson 2013-03-26 14:46:45 -04:00
parent 7a57b1bce0
commit 2123176684
1 changed files with 4 additions and 1 deletions
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5
src/proto/packet.proto
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@ -52,11 +52,14 @@ message PacketHeader {
// the address, and the size in bytes. The optional flags are used to
// capture the request flags that convey information about
// cacheability, if the packet is an instruction fetch or prefetch or
// not, etc.
// not, etc. An optional id field is added for generic use to identify
// the packet or the "owner" of the packet. An example of the latter
// is the sequential id of an instruction, or the master id etc.
message Packet {
required uint64 tick = 1;
required uint32 cmd = 2;
required uint64 addr = 3;
required uint32 size = 4;
optional uint32 flags = 5;
optional uint64 id = 6;
}