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Arm backend: Introduce support for a VGF runtime backend. #12426

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Merged
merged 2 commits into from
Jul 28, 2025
Merged

Arm backend: Introduce support for a VGF runtime backend. #12426

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8aaaf4b
Arm backend: Introduce support for a VGF runtime backend.
robell Jun 25, 2025
043be0b
minor fix for cmake changes
robell Jul 28, 2025
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4 changes: 4 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -817,6 +817,10 @@ endif()
if(EXECUTORCH_BUILD_VULKAN)
add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/backends/vulkan)
endif()
if(EXECUTORCH_BUILD_VGF)
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Add a readme under backends/arm?

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We should to that! I will add one in a separate patch, I will have some updates for this soon

add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/backends/arm)
endif()


if(EXECUTORCH_BUILD_ANDROID_JNI)
add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/extension/android)
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52 changes: 50 additions & 2 deletions backends/arm/CMakeLists.txt
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Expand Up @@ -12,13 +12,17 @@ if(NOT EXECUTORCH_ROOT)
set(EXECUTORCH_ROOT ${CMAKE_CURRENT_SOURCE_DIR}/../..)
endif()

add_compile_options("-Wall" "-Werror")

include(${EXECUTORCH_ROOT}/tools/cmake/Utils.cmake)

set(_common_include_directories ${EXECUTORCH_ROOT}/.. ${EXECUTORCH_ROOT}/runtime/core/portable_type/c10)
add_compile_definitions(C10_USING_CUSTOM_GENERATED_MACROS)


# bare metal backend builds
if(EXECUTORCH_BUILD_ARM_BAREMETAL)

add_compile_options("-Wall" "-Werror")

# Third-party folder and Ethos-U driver inclued
set(THIRD_PARTY_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/third-party")
set(DRIVER_ETHOSU_INCLUDE_DIR "${THIRD_PARTY_ROOT}/ethos-u-core-driver/include")
Expand All @@ -36,3 +40,47 @@ target_include_directories(
target_include_directories(
executorch_delegate_ethos_u PUBLIC ${DRIVER_ETHOSU_INCLUDE_DIR}
)

# end config for bare metal builds
endif()


# VGF backend builds
if(EXECUTORCH_BUILD_VGF)

# include libvgf
set(LIBVGF_PATH "${EXECUTORCH_ROOT}/examples/arm/ethos-u-scratch/ml-sdk-for-vulkan-manifest/sw/vgf-lib/")

set(VULKAN_THIRD_PARTY_PATH ${EXECUTORCH_ROOT}/backends/vulkan/third-party)
set(VULKAN_HEADERS_PATH ${VULKAN_THIRD_PARTY_PATH}/Vulkan-Headers/include)
set(VOLK_HEADERS_PATH ${VULKAN_THIRD_PARTY_PATH}/volk)

set(LIBVGF_STATIC "${LIBVGF_PATH}/build/src/libvgf.a")
set(LIBVGF_INCLUDE "${LIBVGF_PATH}/include/")

add_library(vgf STATIC IMPORTED)
set_property( TARGET vgf PROPERTY IMPORTED_LOCATION "${LIBVGF_STATIC}" )
target_include_directories(vgf INTERFACE "${LIBVGF_INCLUDE}")

# Add backend delegate for VGF
set(_vgf_backend_sources backends/arm/runtime/VGFBackend.cpp
backends/arm/runtime/VGFSetup.cpp )

# vgf backend
list(TRANSFORM _vgf_backend_sources PREPEND "${EXECUTORCH_ROOT}/")
add_library(vgf_backend ${_vgf_backend_sources})
target_include_directories(
vgf_backend PUBLIC
${_common_include_directories}
${VULKAN_HEADERS_PATH}
${VOLK_HEADERS_PATH}
)
target_compile_options(vgf_backend PRIVATE -DUSE_VULKAN_WRAPPER -DUSE_VULKAN_VOLK)


target_link_libraries(vgf_backend PRIVATE executorch_core)
target_link_libraries(vgf_backend PRIVATE vgf)
executorch_target_link_options_shared_lib(vgf_backend)

# end config for VGF builds
endif()
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