inorder-alpha-port: initial inorder support of ALPHA

Edit AlphaISA to support the inorder model. Mostly alternate constructor functions and also a few skeleton multithreaded support functions
* * *
Remove namespace from header file. Causes compiler issues that are hard to find
* * *
Separate the TLB from the CPU and allow it to live in the TLBUnit resource. Give CPU accessor functions for access and also bind at construction time
* * *
Expose memory access size and flags through instruction object
(temporarily memAccSize and memFlags to get TLB stuff working.)

4 files changed, 27 insertions, 7 deletions

diff --git a/src/cpu/inorder/resources/cache_unit.cc b/src/cpu/inorder/resources/cache_unit.cc
index 772437638..d273d7247 100644
--- a/src/cpu/inorder/resources/cache_unit.cc
+++ b/src/cpu/inorder/resources/cache_unit.cc
@@ -32,7 +32,7 @@
 #include <vector>
 #include <list>
 #include "arch/isa_traits.hh"
-#include "arch/mips/locked_mem.hh"
+#include "arch/locked_mem.hh"
 #include "arch/utility.hh"
 #include "cpu/inorder/resources/cache_unit.hh"
 #include "cpu/inorder/pipeline_traits.hh"
diff --git a/src/cpu/inorder/resources/mult_div_unit.cc b/src/cpu/inorder/resources/mult_div_unit.cc
index b31d60ad5..df9d4c293 100644
--- a/src/cpu/inorder/resources/mult_div_unit.cc
+++ b/src/cpu/inorder/resources/mult_div_unit.cc
@@ -47,7 +47,7 @@ MultDivUnit::MultDivUnit(string res_name, int res_id, int res_width,
       div16RepeatRate(params->div16RepeatRate), div16Latency(params->div16Latency), 
       div24RepeatRate(params->div24RepeatRate), div24Latency(params->div24Latency), 
       div32RepeatRate(params->div32RepeatRate), div32Latency(params->div32Latency), 
-      lastMDUCycle(0)
+      lastMDUCycle(0), lastOpType(No_OpClass)
 { }
 
 void
diff --git a/src/cpu/inorder/resources/tlb_unit.cc b/src/cpu/inorder/resources/tlb_unit.cc
index b3757d707..fbc6bc195 100644
--- a/src/cpu/inorder/resources/tlb_unit.cc
+++ b/src/cpu/inorder/resources/tlb_unit.cc
@@ -33,6 +33,7 @@
 #include <list>
 #include "arch/isa_traits.hh"
 #include "cpu/inorder/pipeline_traits.hh"
+#include "cpu/inorder/first_stage.hh"
 #include "cpu/inorder/resources/tlb_unit.hh"
 #include "cpu/inorder/cpu.hh"
 
@@ -44,11 +45,26 @@ TLBUnit::TLBUnit(string res_name, int res_id, int res_width,
                  int res_latency, InOrderCPU *_cpu, ThePipeline::Params *params)
     : InstBuffer(res_name, res_id, res_width, res_latency, _cpu, params)
 {
+    // Hard-Code Selection For Now
+    if (res_name == "I-TLB")
+        _tlb = params->itb;
+    else if (res_name == "D-TLB")
+        _tlb = params->dtb;
+    else
+        fatal("Unrecognized TLB name passed by user");
+
     for (int i=0; i < MaxThreads; i++) {
         tlbBlocked[i] = false;
     }
 }
 
+TheISA::TLB*
+TLBUnit::tlb()
+{
+    return _tlb;
+
+}
+
 void
 TLBUnit::init()
 {
@@ -82,7 +98,7 @@ TLBUnit::execute(int slot_idx)
     // After this is working, change this to a reinterpret cast
     // for performance considerations
     TLBUnitRequest* tlb_req = dynamic_cast<TLBUnitRequest*>(reqMap[slot_idx]);
-    assert(tlb_req);
+    assert(tlb_req != 0x0);
 
     DynInstPtr inst = tlb_req->inst;
     int tid, seq_num, stage_num;
@@ -93,12 +109,15 @@ TLBUnit::execute(int slot_idx)
 
     tlb_req->fault = NoFault;
 
+    assert(cpu->thread[tid]->getTC() != 0x0);
+    assert(cpu->pipelineStage[stage_num] != 0x0);
+
     switch (tlb_req->cmd)
     {
       case FetchLookup:
         {
             tlb_req->fault =
-                this->cpu->itb->translateAtomic(tlb_req->memReq,
+                _tlb->translateAtomic(tlb_req->memReq,
                         cpu->thread[tid]->getTC(), false, true);
 
             if (tlb_req->fault != NoFault) {
@@ -129,7 +148,7 @@ TLBUnit::execute(int slot_idx)
                     tid, seq_num, tlb_req->memReq->getVaddr());
 
             tlb_req->fault =
-                this->cpu->itb->translateAtomic(tlb_req->memReq,
+                _tlb->translateAtomic(tlb_req->memReq,
                         cpu->thread[tid]->getTC());
 
             if (tlb_req->fault != NoFault) {
diff --git a/src/cpu/inorder/resources/tlb_unit.hh b/src/cpu/inorder/resources/tlb_unit.hh
index c7fee6030..b53f251fc 100644
--- a/src/cpu/inorder/resources/tlb_unit.hh
+++ b/src/cpu/inorder/resources/tlb_unit.hh
@@ -67,14 +67,15 @@ class TLBUnit : public InstBuffer {
 
     bool tlbBlocked[ThePipeline::MaxThreads];
 
+    TheISA::TLB* tlb();
+
   protected:
     /** List of instructions this resource is currently
      *  processing.
      */
     std::list<DynInstPtr> instList;
 
-    /** @todo: Add Resource Stats Here */
-
+    TheISA::TLB *_tlb;
 };
 
 class TLBUnitEvent : public ResourceEvent {