NXP backend: Remove header files and reference them from eIQ Neutron SDK

.github/workflows/pull.yml

@@ -1922,6 +1922,9 @@ jobs:
         CONDA_ENV=$(conda env list --json | jq -r ".envs | .[-1]")
         conda activate "${CONDA_ENV}"
 
+        # Install the eIQ Neutron SDK (provides the Neutron driver headers)
+        pip install -r backends/nxp/requirements-eiq.txt
+
         # Build
         cmake -DEXECUTORCH_BUILD_NXP_NEUTRON=ON -DEXECUTORCH_BUILD_NXP_NEUTRON_EXTERNAL_MEM=ON -Bcmake-out .
         cmake --build cmake-out --target executorch_delegate_neutron --config Release

backends/nxp/CMakeLists.txt

@@ -3,6 +3,8 @@
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
 
+include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/neutron_sdk.cmake)
+
 set(_common_include_directories ${CMAKE_CURRENT_SOURCE_DIR}/../../..)
 add_compile_definitions(C10_USING_CUSTOM_GENERATED_MACROS)
 
@@ -15,7 +17,7 @@ set(_neutron_sources ${CMAKE_CURRENT_SOURCE_DIR}/runtime/NeutronBackend.cpp)
 add_library(executorch_delegate_neutron STATIC ${_neutron_sources})
 target_include_directories(
   executorch_delegate_neutron
-  PRIVATE ${_common_include_directories}
+  PRIVATE ${_common_include_directories} ${EIQ_NEUTRON_TARGET_INCLUDE_DIR}
           ${PROJECT_SOURCE_DIR}/runtime/core/portable_type/c10
 )
 install(

backends/nxp/cmake/neutron_sdk.cmake

@@ -0,0 +1,48 @@
+# Copyright 2026 NXP
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
+# Locates the eIQ Neutron SDK and the selected target. Sets:
+# EIQ_NEUTRON_TARGET_DIR, EIQ_NEUTRON_TARGET_INCLUDE_DIR.
+
+if(NOT DEFINED EIQ_NEUTRON_TARGET)
+  set(EIQ_NEUTRON_TARGET
+      "imxrt700"
+      CACHE STRING "Neutron Target to build against"
+  )
+endif()
+
+find_package(
+  Python
+  COMPONENTS Interpreter
+  REQUIRED
+)
+
+message(STATUS "Looking for eIQ Neutron SDK")
+execute_process(
+  COMMAND
+    ${Python_EXECUTABLE} -c
+    "import eiq_neutron_sdk, os; print(os.path.dirname(eiq_neutron_sdk.__file__))"
+  OUTPUT_VARIABLE EIQ_NEUTRON_SDK_PATH
+  OUTPUT_STRIP_TRAILING_WHITESPACE
+)
+message(STATUS "Looking for eIQ Neutron SDK -- found: ${EIQ_NEUTRON_SDK_PATH}")
+
+message(STATUS "Looking for Neutron target ${EIQ_NEUTRON_TARGET}")
+set(EIQ_NEUTRON_TARGET_DIR
+    "${EIQ_NEUTRON_SDK_PATH}/target/${EIQ_NEUTRON_TARGET}"
+)
+if(NOT EXISTS ${EIQ_NEUTRON_TARGET_DIR})
+  message(
+    FATAL_ERROR "Looking for Neutron target ${EIQ_NEUTRON_TARGET} -- not found"
+  )
+endif()
+message(
+  STATUS
+    "Looking for Neutron target ${EIQ_NEUTRON_TARGET} -- found: ${EIQ_NEUTRON_TARGET_DIR}"
+)
+
+set(EIQ_NEUTRON_TARGET_INCLUDE_DIR "${EIQ_NEUTRON_TARGET_DIR}/common/include"
+                                   "${EIQ_NEUTRON_TARGET_DIR}/driver/include"
+)

backends/nxp/runtime/NeutronBackend.cpp

@@ -13,8 +13,8 @@
 #include <executorch/runtime/core/event_tracer_hooks_delegate.h>
 #include <executorch/runtime/core/exec_aten/util/dim_order_util.h>
 
-#include "NeutronDriver.h"
-#include "NeutronErrors.h"
+#include <NeutronDriver.h>
+#include <NeutronErrors.h>
 
 using namespace std;