ruby: support to stallAndWait the mandatory queue

By stalling and waiting the mandatory queue instead of recycling it, one can
ensure that no incoming messages are starved when the mandatory queue puts
signficant of pressure on the L1 cache controller (i.e. the ruby memtester).

--HG--
rename : src/mem/slicc/ast/WakeUpDependentsStatementAST.py => src/mem/slicc/ast/WakeUpAllDependentsStatementAST.py

1 files changed, 32 insertions, 0 deletions

diff --git a/src/mem/slicc/symbols/StateMachine.py b/src/mem/slicc/symbols/StateMachine.py
index b0d663c43..6a5817d55 100644
--- a/src/mem/slicc/symbols/StateMachine.py
+++ b/src/mem/slicc/symbols/StateMachine.py
@@ -258,6 +258,7 @@ public:
     const MachineType getMachineType() const;
     void stallBuffer(MessageBuffer* buf, Address addr);
     void wakeUpBuffers(Address addr);
+    void wakeUpAllBuffers();
     void initNetworkPtr(Network* net_ptr) { m_net_ptr = net_ptr; }
     void print(std::ostream& out) const;
     void printConfig(std::ostream& out) const;
@@ -734,6 +735,37 @@ $c_ident::wakeUpBuffers(Address addr)
 }
 
 void
+$c_ident::wakeUpAllBuffers()
+{
+    //
+    // Wake up all possible buffers that could be waiting on any message.
+    //
+
+    std::vector<MsgVecType*> wokeUpMsgVecs;
+    
+    for (WaitingBufType::iterator buf_iter = m_waiting_buffers.begin();
+         buf_iter != m_waiting_buffers.end();
+         ++buf_iter) {
+         for (MsgVecType::iterator vec_iter = buf_iter->second->begin();
+              vec_iter != buf_iter->second->end();
+              ++vec_iter) {
+              if (*vec_iter != NULL) {
+                  (*vec_iter)->reanalyzeAllMessages();
+              }
+         }
+         wokeUpMsgVecs.push_back(buf_iter->second);
+    }
+    
+    for (std::vector<MsgVecType*>::iterator wb_iter = wokeUpMsgVecs.begin();
+         wb_iter != wokeUpMsgVecs.end();
+         ++wb_iter) {
+         delete (*wb_iter);
+    }
+    
+    m_waiting_buffers.clear();
+}
+
+void
 $c_ident::blockOnQueue(Address addr, MessageBuffer* port)
 {
     m_is_blocking = true;