+ stop on tlb change implemented

mellotanica · Dec 1, 2014 · ae1815a · ae1815a
1 parent ec46c02
commit ae1815a
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Showing 6 changed files with 38 additions and 4 deletions.
diff --git a/armProc/machine.cc b/armProc/machine.cc
@@ -187,12 +187,22 @@ void machine::toggleBP(bool status){
     breakpointStatus = status;
 }
 
+void machine::toggleTLBPause(bool status){
+    stopOnTLB = status;
+    MC_Holder::getInstance()->getConfig()->setStopOnTLBChange(status);
+    MC_Holder::getInstance()->getConfig()->Save();
+}
+
 void machine::clearCause(){
     stopCause = 0;
 }
 
 void machine::updateTLB(unsigned int index){
     emit tlbChanged(index);
+    if(stopOnTLB){
+        stopCause |= SC_UTLB_KERNEL;
+        stopRequested = true;
+    }
 }
 
 #endif //UARM_MACHINE_CC
diff --git a/armProc/machine.h b/armProc/machine.h
@@ -81,9 +81,11 @@ private slots:
     void run();
     void reset();
     void toggleBP(bool status);
+    void toggleTLBPause(bool status);
 
 private:
     bool breakpointStatus = true;
+    bool stopOnTLB = false;
     bool fullUIupdate = true;
     unsigned int refreshRate = 1;
     unsigned int ticksFromUpdate = 0;

diff --git a/armProc/machine_config.cc b/armProc/machine_config.cc
@@ -99,6 +99,8 @@ MachineConfig* MachineConfig::LoadFromFile(const std::string& fileName, std::str
             config->setRamSize(root->Get("num-ram-frames")->AsNumber());
         if (root->HasMember("pause-on-exc"))
             config->setStopOnException(root->Get("pause-on-exc")->AsBool());
+        if (root->HasMember("pause-on-tlb"))
+            config->setStopOnTLBChange(root->Get("pause-on-tlb")->AsBool());
 
         if (root->HasMember("boot")) {
             JsonObject* bootOpt = root->Get("boot")->AsObject();
@@ -166,6 +168,7 @@ void MachineConfig::Save()
     root->Set("tlb-size", (int) getTLBSize());
     root->Set("num-ram-frames", (int) getRamSize());
     root->Set("pause-on-exc", getStopOnException());
+    root->Set("pause-on-tlb", getStopOnTLBChange());
 
     JsonObject* bootOpt = new JsonObject;
     bootOpt->Set("load-core-file", isLoadCoreEnabled());
@@ -267,6 +270,11 @@ void MachineConfig::setSymbolTableASID(Word asid)
     symbolTableASID = bumpProperty(MIN_ASID, asid, MAX_ASID);
 }
 
+void MachineConfig::setStopOnTLBChange(bool value)
+{
+    stopOnTLBChange = value;
+}
+
 unsigned int MachineConfig::getDeviceType(unsigned int il, unsigned int devNo) const
 {
     assert(il < N_EXT_IL && devNo < N_DEV_PER_IL);
@@ -331,6 +339,7 @@ void MachineConfig::resetToFactorySettings()
     setRamSize(DEFAULT_RAM_SIZE);
     setTLBSize(DEFAULT_TLB_SIZE);
     setStopOnException(DEFAULT_STOP_ON_EXCEPTION);
+    setStopOnTLBChange(DEFAULT_STOP_ON_TLB_CHANGE);
 
     // STATIC: this is a temp bios, there needs to be a more complete one..
     setROM(ROM_TYPE_BIOS, "/usr/include/uarm/BIOS.rom.uarm");

diff --git a/armProc/machine_config.h b/armProc/machine_config.h
@@ -70,6 +70,7 @@ class MachineConfig {
     static const unsigned int DEFAULT_REFRESH_RATE = 70;
 
     static const bool DEFAULT_STOP_ON_EXCEPTION = false;
+    static const bool DEFAULT_STOP_ON_TLB_CHANGE = false;
 
     static const Word MIN_ASID = 0;
     static const Word MAX_ASID = MAXASID-1;
@@ -106,6 +107,9 @@ class MachineConfig {
     void setTLBSize(Word size);
     Word getTLBSize() const { return tlbSize; }
 
+    void setStopOnTLBChange(bool value);
+    bool getStopOnTLBChange() const { return stopOnTLBChange; }
+
     void setROM(ROMType type, const std::string& fileName);
     const std::string& getROM(ROMType type) const;
 
@@ -133,6 +137,7 @@ class MachineConfig {
 
     bool loadCoreFile;
     bool stopOnException;
+    bool stopOnTLBChange;
 
     Word ramSize;
     unsigned int cpus;

diff --git a/qarm/breakpoint_window.cc b/qarm/breakpoint_window.cc
@@ -40,6 +40,9 @@ breakpoint_window::breakpoint_window(machine *mac, QWidget * parent, Qt::WindowF
     QWidget *buttonsLeftW = new QWidget(buttonsW);
     QGridLayout *buttonsLeftL = new QGridLayout(buttonsLeftW);
 
+    QWidget *buttonsCenterW = new QWidget(buttonsW);
+    QGridLayout *buttonsCenterL = new QGridLayout(buttonsCenterW);
+
     QWidget *buttonsRightW = new QWidget(buttonsW);
     QGridLayout *buttonsRightL = new QGridLayout(buttonsRightW);
 
@@ -59,6 +62,13 @@ breakpoint_window::breakpoint_window(machine *mac, QWidget * parent, Qt::WindowF
     breakpointsActive = new QCheckBox("Stop on Breakpoint", buttonsW);
     connect(breakpointsActive, SIGNAL(toggled(bool)), mac, SLOT(toggleBP(bool)));
     breakpointsActive->setChecked(true);
+    buttonsCenterL->addWidget(breakpointsActive);
+
+    breakOnTLB = new QCheckBox("Stop on TLB change", buttonsW);
+    connect(breakOnTLB, SIGNAL(toggled(bool)), mac, SLOT(toggleTLBPause(bool)));
+    breakOnTLB->setChecked(MC_Holder::getInstance()->getConfig()->getStopOnTLBChange());
+    buttonsCenterL->addWidget(breakOnTLB);
+    buttonsCenterW->setLayout(buttonsCenterL);
 
     buttonsLeftL->addWidget(add, 0, 0);
     buttonsLeftL->addWidget(new QFLine(false), 1, 0);
@@ -69,13 +79,11 @@ breakpoint_window::breakpoint_window(machine *mac, QWidget * parent, Qt::WindowF
     buttonsRightW->setLayout(buttonsRightL);
 
     buttonsL->addWidget(buttonsLeftW);
-    buttonsL->addWidget(breakpointsActive);
+    buttonsL->addWidget(buttonsCenterW);
     buttonsL->addWidget(buttonsRightW);
 
     buttonsW->setLayout(buttonsL);
 
-    //EDIT: setup buttons
-
     breakpointView = new QTreeView;
     breakpointView->setRootIsDecorated(false);
     breakpointView->setContextMenuPolicy(Qt::ActionsContextMenu);

diff --git a/qarm/breakpoint_window.h b/qarm/breakpoint_window.h
@@ -64,7 +64,7 @@ private slots:
     QToolButton *add, *remove;
     StoppointListModel *stoppointList;
     QTreeView *breakpointView;
-    QCheckBox *breakpointsActive;
+    QCheckBox *breakpointsActive, *breakOnTLB;
 
     SymbolTable *activeStab;