Copy L0 headers to level_zero directory to handle includes in compute-runtime headers

Headers that we bring from compute-runtime assume that headers
are in the level_zero directory.

Author: againull

cmake/FetchLevelZero.cmake

@@ -89,9 +89,11 @@ target_link_libraries(LevelZeroLoader
     INTERFACE "${LEVEL_ZERO_LIB_NAME}"
 )
 
+file(GLOB LEVEL_ZERO_LOADER_API_HEADERS "${LEVEL_ZERO_INCLUDE_DIR}/*.h")
+file(COPY ${LEVEL_ZERO_LOADER_API_HEADERS} DESTINATION ${LEVEL_ZERO_INCLUDE_DIR}/level_zero)
 add_library(LevelZeroLoader-Headers INTERFACE)
 target_include_directories(LevelZeroLoader-Headers
-    INTERFACE "$<BUILD_INTERFACE:${LEVEL_ZERO_INCLUDE_DIR}>"
+    INTERFACE "$<BUILD_INTERFACE:${LEVEL_ZERO_INCLUDE_DIR};${LEVEL_ZERO_INCLUDE_DIR}/level_zero>"
               "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
 )
 

source/adapters/level_zero/device.hpp

@@ -18,20 +18,12 @@
 #include <unordered_map>
 #include <vector>
 
+#include "adapters/level_zero/platform.hpp"
+#include "common.hpp"
+#include <level_zero/include/ze_intel_gpu.h>
 #include <ur/ur.hpp>
 #include <ur_ddi.h>
-// Make sure that we don't reorder these includes during formatting. Across the
-// codebase we include <ze_api.h> (not <level_zero/ze_api.h>) which guarantees
-// that we use up-to-date fetched Level Zero headers and not some headers from
-// the system (which might be out-of-date). ze_intel_gpu.h includes
-// <level_zero/ze_api.h>, so if we include it first then it is possible that we
-// mistakenly use the headers insalled in the system.
-// clang-format off
 #include <ze_api.h>
-#include <level_zero/include/ze_intel_gpu.h>
-// clang-format on
-#include "adapters/level_zero/platform.hpp"
-#include "common.hpp"
 #include <zes_api.h>
 
 enum EventsScope {