[crorc] Flush superpages on DMA stop

Author: kostorr

src/Crorc/CrorcBar.cxx

@@ -227,6 +227,11 @@ bool CrorcBar::getTimeFrameDetectionEnabled()
   return (readRegister(Crorc::Registers::CFG_CONTROL_B.index) >> 12) & 0x1;
 }
 
+void CrorcBar::flushSuperpages()
+{
+  modifyRegister(Crorc::Registers::CFG_CONTROL_B.index, 16, 1, 0x1);
+}
+
 void CrorcBar::getOpticalPowers(std::map<int, Crorc::Link>& linkMap)
 {
   for (auto& el : linkMap) {

src/Crorc/CrorcBar.h

@@ -52,6 +52,7 @@ class CrorcBar final : public BarInterfaceBase
   Crorc::ReportInfo report();
 
   void resetDevice(bool withSiu);
+  void flushSuperpages();
   void startDataReceiver(uintptr_t readyFifoBusAddress);
   void stopDataReceiver();
   void startDataGenerator();

src/Crorc/CrorcDmaChannel.cxx

@@ -166,6 +166,7 @@ void CrorcDmaChannel::startPendingDma()
 
 void CrorcDmaChannel::deviceStopDma()
 {
+  getBar()->flushSuperpages();
   if (mGeneratorEnabled) {
     getBar()->stopDataGenerator();
   } else {