From: Korey Sewell <ksewell@umich.edu>
Date: Mon, 20 Jun 2011 01:43:42 +0000 (-0400)
Subject: inorder: se: squash after syscalls
X-Git-Tag: stable_2012_02_02~207
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b963b339b9d0f5a4583e62f32766f085ad95529e;p=gem5.git

inorder: se: squash after syscalls
---

diff --git a/src/cpu/inorder/cpu.cc b/src/cpu/inorder/cpu.cc
index fbd4a6068..d8552d9d3 100644
--- a/src/cpu/inorder/cpu.cc
+++ b/src/cpu/inorder/cpu.cc
@@ -1713,7 +1713,16 @@ InOrderCPU::wakeup()
 void
 InOrderCPU::syscallContext(Fault fault, ThreadID tid, DynInstPtr inst, int delay)
 {
-    //@todo: squash behind syscall
+    // Syscall must be non-speculative, so squash from last stage
+    unsigned squash_stage = NumStages - 1;
+    inst->setSquashInfo(squash_stage);
+
+    // Squash In Pipeline Stage
+    pipelineStage[squash_stage]->setupSquash(inst, tid);
+
+    // Schedule Squash Through-out Resource Pool
+    resPool->scheduleEvent(
+        (InOrderCPU::CPUEventType)ResourcePool::SquashAll, inst, 0);
     scheduleCpuEvent(Syscall, fault, tid, inst, delay, Syscall_Pri);
 }
 
diff --git a/src/cpu/inorder/inorder_dyn_inst.hh b/src/cpu/inorder/inorder_dyn_inst.hh
index b655de380..c2d37d716 100644
--- a/src/cpu/inorder/inorder_dyn_inst.hh
+++ b/src/cpu/inorder/inorder_dyn_inst.hh
@@ -867,7 +867,7 @@ class InOrderDynInst : public FastAlloc, public RefCounted
     void setFloatSrc(int idx, FloatReg val);
     void setFloatRegBitsSrc(int idx, TheISA::FloatRegBits val);
 
-    uint64_t* getIntSrcPtr(int idx) { return &instSrc[idx].intVal; }
+    TheISA::IntReg* getIntSrcPtr(int idx) { return &instSrc[idx].intVal; }
     uint64_t readIntSrc(int idx) { return instSrc[idx].intVal; }
 
     /** These Instructions read a integer/float/misc. source register