Changes in code.

Author: jaladreips

IGC/AdaptorCommon/RayTracing/API/API.h

@@ -16,3 +16,4 @@ SPDX-License-Identifier: MIT
 #include "BVHInfo.h"
 #include "MemoryStyleEnum.h"
 #include "RayDispatchGlobalData.h"
+#include "AtomicPullSWTileWalkInterface.h"

IGC/DriverInterface/CMakeLists.txt

@@ -147,6 +147,7 @@ set(IGC_BUILD__HDR__DriverInterface
     "${CMAKE_CURRENT_SOURCE_DIR}/../AdaptorCommon/RayTracing/API/BVHInfo.h"
     "${CMAKE_CURRENT_SOURCE_DIR}/../AdaptorCommon/RayTracing/API/MemoryStyleEnum.h"
     "${CMAKE_CURRENT_SOURCE_DIR}/../AdaptorCommon/RayTracing/API/RayDispatchGlobalData.h"
+    "${CMAKE_CURRENT_SOURCE_DIR}/../AdaptorCommon/RayTracing/API/AtomicPullSWTileWalkInterface.h"
     )
   set(IGC_BUILD__HDR__RAYTRACING_API__ADT
     "${CMAKE_CURRENT_SOURCE_DIR}/../AdaptorCommon/RayTracing/API/ADT/Array.h"

IGC/common/MDFrameWork.h

@@ -250,6 +250,10 @@ namespace IGC
 
         RTMemoryStyle MemStyle = RTMemoryStyle::Xe;
         RayDispatchInlinedDataStyle GlobalDataStyle = RayDispatchInlinedDataStyle::Xe;
+
+        // existence of this value indicates we are opting into atomic pull tile walk
+        // this field carries the uber tile dimensions, which needs to be passed on to the UMD.
+        std::optional<std::array<uint32_t, 2>> uberTileDimensions;
     };
 
     // Info specific to each raytracing shader