Gabriel B. has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/67672?usp=email )
Change subject: mem-ruby: Add NodeID<->MachineID conversion funcs to
MachineID
......................................................................
mem-ruby: Add NodeID<->MachineID conversion funcs to MachineID
This is a convenience function that enables convertion from global
NodeID to MachineID and vice-versa. If the provided node ID does not
convert to a machine ID (e.g., this is a switch), an error is
triggered.
Change-Id: I345d9de92f44638ed0908f3f7a889db01c60ba7b
---
M src/mem/ruby/common/MachineID.hh
1 file changed, 38 insertions(+), 0 deletions(-)
diff --git a/src/mem/ruby/common/MachineID.hh
b/src/mem/ruby/common/MachineID.hh
index 949e59c..bda3ca7 100644
--- a/src/mem/ruby/common/MachineID.hh
+++ b/src/mem/ruby/common/MachineID.hh
@@ -67,6 +67,30 @@
NodeID getNum() const { return num; }
bool isValid() const { return type != MachineType_NUM; }
+
+ NodeID toGlobalNodeID() const {
+ return MachineType_base_number(getType()) + getNum();
+ }
+
+ static MachineID fromGlobalNodeID(NodeID id) {
+ // inverse of toGlobalNodeID. Retrieves the global nodeID interval
that
+ // the argument belongs to, i.e., it's machine type. Then compute
the
+ // ofset of the argument in that interval, i.e., the version of
that
+ // machine.
+ auto baseID = 0;
+ auto machineTypeEnd = static_cast<int>(MachineType_NUM);
+ gem5_assert(machineTypeEnd > 0);
+ for (int mt = 0; mt < machineTypeEnd; mt++) {
+ auto mtNext = static_cast<MachineType>(mt+1);
+ auto nextBaseID = MachineType_base_number(mtNext);
+ if (id <= nextBaseID) {
+ return {static_cast<MachineType>(mt), id - baseID};
+ }
+ baseID = nextBaseID;
+ }
+ throw std::runtime_error(
+ "Invalid NodeID for conversion to MachineID");
+ }
};
inline std::string
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: I345d9de92f44638ed0908f3f7a889db01c60ba7b
Gerrit-Change-Number: 67672
Gerrit-PatchSet: 1
Gerrit-Owner: Gabriel B. <gabriel.bus...@arteris.com>
Gerrit-MessageType: newchange
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