Fixes for BDW device enqueue

- add DC Flush to PipeControl with CSStall
- fix SLB SPACE_FOR_EACH_ENQUEUE size for gen8

Change-Id: Ida6ced371e86ff0f8c1b23f08e64fa73530e37b1

Author: HoppeMateusz

runtime/device_queue/device_queue_hw.h

@@ -91,6 +91,7 @@ class DeviceQueueHw : public DeviceQueue {
     void addPipeControlCmdWa(bool isNoopCmd = false);
     void initPipeControl(PIPE_CONTROL *pc);
     void buildSlbDummyCommands();
+    void addDcFlushToPipeControlWa(PIPE_CONTROL *pc);
 
     void addProfilingEndCmds(uint64_t timestampAddress);
     static size_t getProfilingEndCmdsSize();

runtime/device_queue/device_queue_hw.inl

@@ -430,6 +430,8 @@ void DeviceQueueHw<GfxFamily>::addMediaStateClearCmds() {
     pipeControl->setGenericMediaStateClear(true);
     pipeControl->setCommandStreamerStallEnable(true);
 
+    addDcFlushToPipeControlWa(pipeControl);
+
     PreambleHelper<GfxFamily>::programVFEState(&slbCS, device->getHardwareInfo(), 0, 0);
 }
 
@@ -471,4 +473,7 @@ size_t DeviceQueueHw<GfxFamily>::getProfilingEndCmdsSize() {
     return size;
 }
 
+template <typename GfxFamily>
+void DeviceQueueHw<GfxFamily>::addDcFlushToPipeControlWa(PIPE_CONTROL *pc) {}
+
 } // namespace OCLRT

runtime/gen8/device_enqueue.h

@@ -44,7 +44,7 @@
 
 #ifdef WA_LRI_COMMANDS_EXIST_GEN8
 
-#define SECOND_LEVEL_BUFFER_SPACE_FOR_EACH_ENQUEUE_GEN8PLUS (OCLRT_SIZEOF_MEDIA_STATE_FLUSH + OCLRT_SIZEOF_MI_ATOMIC_CMD + OCLRT_SIZEOF_MEDIA_VFE_STATE_CMD + OCLRT_SIZEOF_MEDIA_INTERFACE_DESCRIPTOR_LOAD_DEVICE_CMD + OCLRT_LOAD_REGISTER_IMM_CMD_G8 + OCLRT_PIPE_CONTROL_CMD_DEVICE_CMD_G8 + OCLRT_GPGPU_WALKER_CMD_DEVICE_CMD_G8 + OCLRT_SIZEOF_MEDIA_STATE_FLUSH + OCLRT_PIPE_CONTROL_CMD_DEVICE_CMD_G8 + OCLRT_LOAD_REGISTER_IMM_CMD_G8 + CS_PREFETCH_SIZE)
+#define SECOND_LEVEL_BUFFER_SPACE_FOR_EACH_ENQUEUE_GEN8PLUS (OCLRT_SIZEOF_MEDIA_STATE_FLUSH + OCLRT_SIZEOF_MI_ATOMIC_CMD + OCLRT_SIZEOF_MEDIA_INTERFACE_DESCRIPTOR_LOAD_DEVICE_CMD + OCLRT_LOAD_REGISTER_IMM_CMD_G8 + OCLRT_PIPE_CONTROL_CMD_DEVICE_CMD_G8 + OCLRT_GPGPU_WALKER_CMD_DEVICE_CMD_G8 + OCLRT_SIZEOF_MEDIA_STATE_FLUSH + OCLRT_PIPE_CONTROL_CMD_DEVICE_CMD_G8 + OCLRT_LOAD_REGISTER_IMM_CMD_G8 + CS_PREFETCH_SIZE)
 
 #else
 

runtime/gen8/device_queue_gen8.cpp

@@ -81,5 +81,10 @@ void DeviceQueueHw<Family>::addProfilingEndCmds(uint64_t timestampAddress) {
     pPipeControlCmd->setAddress(timestampAddress & (0xffffffff));
 }
 
+template <>
+void DeviceQueueHw<Family>::addDcFlushToPipeControlWa(PIPE_CONTROL *pc) {
+    pc->setDcFlushEnable(true);
+}
+
 template class DeviceQueueHw<Family>;
 } // namespace OCLRT