Add cmake flag to disable i915 prelim headers detection

Related-To: NEO-6625
Signed-off-by: Mateusz Jablonski <mateusz.jablonski@intel.com>

Author: JablonskiMateusz

CMakeLists.txt

@@ -754,6 +754,13 @@ else()
   set(NEO_EXTRA_LIBS dl pthread rt)
 endif()
 
+if(UNIX)
+  # prelim headers detection
+  if((NOT DEFINED NEO_ENABLE_i915_PRELIM_DETECTION) OR NOT ("${BRANCH_TYPE}" STREQUAL ""))
+    set(NEO_ENABLE_i915_PRELIM_DETECTION TRUE)
+  endif()
+  message(STATUS "i915 prelim headers detection: ${NEO_ENABLE_i915_PRELIM_DETECTION}")
+endif()
 add_subdirectory_unique(shared)
 
 if(NEO_BUILD_WITH_OCL)

opencl/test/unit_test/os_interface/linux/CMakeLists.txt

@@ -34,8 +34,6 @@ set(IGDRCL_SRCS_tests_os_interface_linux
     ${CMAKE_CURRENT_SOURCE_DIR}/hw_info_config_linux_tests.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/hw_info_config_linux_tests.h
     ${CMAKE_CURRENT_SOURCE_DIR}/linux_create_command_queue_with_properties_tests.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/ioctl_helper_tests_prelim.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/prelim_helper_func.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/mock_os_time_linux.h
     ${CMAKE_CURRENT_SOURCE_DIR}/mock_performance_counters_linux.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/mock_performance_counters_linux.h
@@ -52,11 +50,18 @@ if(NEO__LIBVA_FOUND)
   )
 endif()
 
-if(TESTS_DG1 AND "${BRANCH_TYPE}" STREQUAL "")
+if(NEO_ENABLE_i915_PRELIM_DETECTION)
   list(APPEND IGDRCL_SRCS_tests_os_interface_linux
-       ${CMAKE_CURRENT_SOURCE_DIR}/ioctl_helper_tests_dg1.cpp
-       ${CMAKE_CURRENT_SOURCE_DIR}/drm_mock_prod_dg1.h
+       ${CMAKE_CURRENT_SOURCE_DIR}/ioctl_helper_tests_prelim.cpp
+       ${CMAKE_CURRENT_SOURCE_DIR}/prelim_helper_func.cpp
   )
+
+  if(TESTS_DG1 AND "${BRANCH_TYPE}" STREQUAL "")
+    list(APPEND IGDRCL_SRCS_tests_os_interface_linux
+         ${CMAKE_CURRENT_SOURCE_DIR}/ioctl_helper_tests_dg1.cpp
+         ${CMAKE_CURRENT_SOURCE_DIR}/drm_mock_prod_dg1.h
+    )
+  endif()
 endif()
 
 if("${BRANCH_TYPE}" STREQUAL "")

shared/source/os_interface/linux/CMakeLists.txt

@@ -88,6 +88,7 @@ set(NEO_CORE_OS_INTERFACE_LINUX
     ${CMAKE_CURRENT_SOURCE_DIR}/pmt_util.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}${BRANCH_DIR_SUFFIX}/system_info_extended.cpp
 )
+
 if(SUPPORT_XEHP_AND_LATER)
   list(APPEND NEO_CORE_OS_INTERFACE_LINUX
        ${CMAKE_CURRENT_SOURCE_DIR}/drm_command_stream_xehp_and_later.inl
@@ -110,6 +111,14 @@ if("${BRANCH_TYPE}" STREQUAL "")
   list(APPEND NEO_CORE_OS_INTERFACE_LINUX
        ${CMAKE_CURRENT_SOURCE_DIR}/ioctl_helper_upstream.cpp
   )
+  if(NOT NEO_ENABLE_i915_PRELIM_DETECTION)
+    list(APPEND NEO_CORE_OS_INTERFACE_LINUX
+         ${CMAKE_CURRENT_SOURCE_DIR}/ioctl_helper_getter_upstream.cpp
+    )
+    list(REMOVE_ITEM NEO_CORE_OS_INTERFACE_LINUX
+         ${CMAKE_CURRENT_SOURCE_DIR}/ioctl_helper_getter.cpp
+    )
+  endif()
 endif()
 
 set_property(GLOBAL PROPERTY NEO_CORE_OS_INTERFACE_LINUX ${NEO_CORE_OS_INTERFACE_LINUX})

shared/source/os_interface/linux/ioctl_helper_getter_upstream.cpp

@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2022 Intel Corporation
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+#include "shared/source/os_interface/linux/ioctl_helper.h"
+
+#include <memory>
+
+namespace NEO {
+IoctlHelper *ioctlHelperFactory[IGFX_MAX_PRODUCT] = {};
+static auto ioctlHelper = std::make_unique<IoctlHelperUpstream>();
+IoctlHelper *IoctlHelper::get(Drm *drm) {
+    return ioctlHelper.get();
+}
+
+} // namespace NEO