ruby: change router pipeline stages to 2

This patch changes the router pipeline stages from 4 to 2. The
canonical 4-stage router is conservative while a lower-latency router
with look ahead routing and speculative allocation is well acknowledged.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/mem/ruby/network/garnet/fixed-pipeline/Router_d.hh b/src/mem/ruby/network/garnet/fixed-pipeline/Router_d.hh
index 5d09fb045..9b384596e 100644
--- a/src/mem/ruby/network/garnet/fixed-pipeline/Router_d.hh
+++ b/src/mem/ruby/network/garnet/fixed-pipeline/Router_d.hh
@@ -85,6 +85,8 @@ class Router_d : public BasicRouter
     void route_req(flit_d *t_flit, InputUnit_d* in_unit, int invc);
     void vcarb_req();
     void swarb_req();
+    void call_sw_alloc();
+    void call_switch();
 
     void printFaultVector(std::ostream& out);
     void printAggregateFaultProbability(std::ostream& out);