Add posibility to modify semaphore delay between waits

Change-Id: Ia44c8ea67ef0bd16436c708d83bda15b4bb77b6e
Signed-off-by: Katarzyna Cencelewska <katarzyna.cencelewska@intel.com>

shared/source/helpers/preamble.h

@@ -48,6 +48,7 @@ struct PreambleHelper {
                                 uint32_t requiredThreadArbitrationPolicy, GraphicsAllocation *preemptionCsr, GraphicsAllocation *perDssBackedBuffer);
     static void programKernelDebugging(LinearStream *pCommandStream);
     static void programPerDssBackedBuffer(LinearStream *pCommandStream, const HardwareInfo &hwInfo, GraphicsAllocation *perDssBackBufferOffset);
+    static void programSemaphoreDelay(LinearStream *pCommandStream);
     static uint32_t getL3Config(const HardwareInfo &hwInfo, bool useSLM);
     static bool isL3Configurable(const HardwareInfo &hwInfo);
     static size_t getAdditionalCommandsSize(const Device &device);
@@ -58,6 +59,7 @@ struct PreambleHelper {
     static uint32_t getUrbEntryAllocationSize();
     static size_t getPerDssBackedBufferCommandsSize(const HardwareInfo &hwInfo);
     static size_t getCmdSizeForPipelineSelect(const HardwareInfo &hwInfo);
+    static size_t getSemaphoreDelayCommandSize();
 };
 
 template <PRODUCT_FAMILY ProductFamily>

shared/source/helpers/preamble_base.inl

@@ -11,6 +11,7 @@
 #include "shared/source/helpers/aligned_memory.h"
 #include "shared/source/helpers/hw_cmds.h"
 #include "shared/source/helpers/preamble.h"
+#include "shared/source/helpers/register_offsets.h"
 
 #include "opencl/source/helpers/hardware_commands_helper.h"
 #include "opencl/source/kernel/kernel.h"
@@ -48,6 +49,22 @@ size_t PreambleHelper<GfxFamily>::getPerDssBackedBufferCommandsSize(const Hardwa
     return 0;
 }
 
+template <typename GfxFamily>
+void PreambleHelper<GfxFamily>::programSemaphoreDelay(LinearStream *pCommandStream) {
+    if (DebugManager.flags.ForceSemaphoreDelayBetweenWaits.get() > -1) {
+        uint32_t valueOfNewSemaphoreDelay = DebugManager.flags.ForceSemaphoreDelayBetweenWaits.get();
+        LriHelper<GfxFamily>::program(pCommandStream,
+                                      SEMA_WAIT_POLL,
+                                      valueOfNewSemaphoreDelay,
+                                      true);
+    };
+}
+
+template <typename GfxFamily>
+size_t PreambleHelper<GfxFamily>::getSemaphoreDelayCommandSize() {
+    return sizeof(MI_LOAD_REGISTER_IMM);
+}
+
 template <typename GfxFamily>
 size_t PreambleHelper<GfxFamily>::getAdditionalCommandsSize(const Device &device) {
     size_t totalSize = PreemptionHelper::getRequiredPreambleSize<GfxFamily>(device);
@@ -79,6 +96,7 @@ void PreambleHelper<GfxFamily>::programPreamble(LinearStream *pCommandStream, De
     if (perDssBackedBuffer != nullptr) {
         programPerDssBackedBuffer(pCommandStream, device.getHardwareInfo(), perDssBackedBuffer);
     }
+    programSemaphoreDelay(pCommandStream);
 }
 
 template <typename GfxFamily>

shared/source/helpers/register_offsets.h

@@ -40,6 +40,7 @@ constexpr uint32_t CS_GPR_R15 = 0x2678;
 
 constexpr uint32_t CS_PREDICATE_RESULT = 0x2418;
 
+constexpr uint32_t SEMA_WAIT_POLL = 0x0224c;
 //Alu opcodes
 constexpr uint32_t NUM_ALU_INST_FOR_READ_MODIFY_WRITE = 4;