From 14824f1dff68608446777a1ad45fafcd7c063c7a Mon Sep 17 00:00:00 2001
From: "Zdunowski, Piotr" <piotr.zdunowski@intel.com>
Date: Mon, 25 Mar 2019 12:44:40 +0100
Subject: [PATCH] Add support for device specific extensions.

Change-Id: I3ffd125875067b00bc225556c09fbe2d02f11022
Signed-off-by: Zdunowski, Piotr <piotr.zdunowski@intel.com>
---
 runtime/device/device_caps.cpp       | 2 ++
 runtime/helpers/hw_helper.h          | 4 ++++
 runtime/helpers/hw_helper_common.inl | 5 +++++
 3 files changed, 11 insertions(+)

diff --git a/runtime/device/device_caps.cpp b/runtime/device/device_caps.cpp
index 1318296b4c..5737df2982 100644
--- a/runtime/device/device_caps.cpp
+++ b/runtime/device/device_caps.cpp
@@ -159,6 +159,8 @@ void Device::initializeCaps() {
     simultaneousInterops = {0};
     appendOSExtensions(deviceExtensions);
 
+    deviceExtensions += hwHelper.getExtensions();
+
     deviceInfo.deviceExtensions = deviceExtensions.c_str();
 
     exposedBuiltinKernels = builtInKernels;
diff --git a/runtime/helpers/hw_helper.h b/runtime/helpers/hw_helper.h
index 4dda140572..f0800299a9 100644
--- a/runtime/helpers/hw_helper.h
+++ b/runtime/helpers/hw_helper.h
@@ -14,6 +14,7 @@
 #include "CL/cl.h"
 
 #include <cstdint>
+#include <string>
 #include <type_traits>
 
 namespace OCLRT {
@@ -59,6 +60,7 @@ class HwHelper {
     virtual size_t getScratchSpaceOffsetFor64bit() = 0;
     virtual const std::vector<EngineType> getGpgpuEngineInstances() const = 0;
     virtual bool getEnableLocalMemory(const HardwareInfo &hwInfo) const = 0;
+    virtual std::string getExtensions() const = 0;
 
     static constexpr uint32_t lowPriorityGpgpuEngineIndex = 1;
 
@@ -146,6 +148,8 @@ class HwHelperHw : public HwHelper {
 
     bool getEnableLocalMemory(const HardwareInfo &hwInfo) const override;
 
+    std::string getExtensions() const override;
+
   protected:
     HwHelperHw() = default;
 };
diff --git a/runtime/helpers/hw_helper_common.inl b/runtime/helpers/hw_helper_common.inl
index ca7830476f..aa0b8f1f14 100644
--- a/runtime/helpers/hw_helper_common.inl
+++ b/runtime/helpers/hw_helper_common.inl
@@ -185,6 +185,11 @@ bool HwHelperHw<Family>::getEnableLocalMemory(const HardwareInfo &hwInfo) const
     return OSInterface::osEnableLocalMemory && isLocalMemoryEnabled(hwInfo);
 }
 
+template <typename Family>
+std::string HwHelperHw<Family>::getExtensions() const {
+    return "";
+}
+
 template <typename Family>
 typename Family::PIPE_CONTROL *PipeControlHelper<Family>::obtainPipeControlAndProgramPostSyncOperation(LinearStream *commandStream,
                                                                                                        POST_SYNC_OPERATION operation,