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[UR] Add a CMake option to allow overriding L0 include directory to use #17922

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Merged
merged 1 commit into from
Apr 9, 2025
Merged

[UR] Add a CMake option to allow overriding L0 include directory to use #17922

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52 changes: 39 additions & 13 deletions unified-runtime/cmake/FetchLevelZero.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,10 @@ set(UR_LEVEL_ZERO_LOADER_TAG "" CACHE STRING " GIT tag of the Level Loader taken
set(UR_COMPUTE_RUNTIME_REPO "" CACHE STRING "Github repo to get the compute runtime sources from")
set(UR_COMPUTE_RUNTIME_TAG "" CACHE STRING " GIT tag of the compute runtime taken from github repo")

# If UR_COMPUTE_RUNTIME_FETCH_REPO is set to OFF, then UR_COMPUTE_RUNTIME_REPO should be defined and
# should point to the compute runtime repo.
set(UR_COMPUTE_RUNTIME_FETCH_REPO ON CACHE BOOL "Flag to indicate wheather to fetch the compute runtime repo")

# Copy Level Zero loader/headers locally to the build to avoid leaking their path.
set(LEVEL_ZERO_COPY_DIR ${CMAKE_CURRENT_BINARY_DIR}/level_zero_loader)
if (NOT UR_LEVEL_ZERO_LOADER_LIBRARY STREQUAL "")
Expand Down Expand Up @@ -102,23 +106,45 @@ target_include_directories(LevelZeroLoader-Headers
"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
)

if (UR_COMPUTE_RUNTIME_REPO STREQUAL "")
set(UR_COMPUTE_RUNTIME_REPO "https://github.com/intel/compute-runtime.git")
endif()
if (UR_COMPUTE_RUNTIME_TAG STREQUAL "")
set(UR_COMPUTE_RUNTIME_TAG 25.05.32567.17)
endif()
include(FetchContent)
# Sparse fetch only the dir with level zero headers for experimental features to avoid pulling in the entire compute-runtime.
FetchContentSparse_Declare(exp-headers ${UR_COMPUTE_RUNTIME_REPO} "${UR_COMPUTE_RUNTIME_TAG}" "level_zero/include")
FetchContent_GetProperties(exp-headers)
if(NOT exp-headers_POPULATED)
FetchContent_Populate(exp-headers)
# Fetch only if UR_COMPUTE_RUNTIME_FETCH_REPO is set to ON.
if (UR_COMPUTE_RUNTIME_FETCH_REPO)

if (UR_COMPUTE_RUNTIME_REPO STREQUAL "")
set(UR_COMPUTE_RUNTIME_REPO "https://github.com/intel/compute-runtime.git")
endif()
if (UR_COMPUTE_RUNTIME_TAG STREQUAL "")
set(UR_COMPUTE_RUNTIME_TAG 25.05.32567.17)
endif()

include(FetchContent)
# Sparse fetch only the dir with level zero headers for experimental features to avoid pulling in the entire compute-runtime.
FetchContentSparse_Declare(exp-headers ${UR_COMPUTE_RUNTIME_REPO} "${UR_COMPUTE_RUNTIME_TAG}" "level_zero/include")
FetchContent_GetProperties(exp-headers)
if(NOT exp-headers_POPULATED)
FetchContent_Populate(exp-headers)
endif()

set(COMPUTE_RUNTIME_LEVEL_ZERO_INCLUDE "${exp-headers_SOURCE_DIR}")
set(COMPUTE_RUNTIME_REPO_PATH "${exp-headers_SOURCE_DIR}/../..")

# When UR_COMPUTE_RUNTIME_FETCH_REPO is OFF, use UR_COMPUTE_RUNTIME_REPO as repo.
else()

# Check if UR_COMPUTE_RUNTIME_REPO is set. Throw if not.
if (UR_COMPUTE_RUNTIME_REPO STREQUAL "")
message(FATAL_ERROR "UR_COMPUTE_RUNTIME_FETCH_REPO is set to OFF but UR_COMPUTE_RUNTIME_REPO is not set. Please set it to the compute runtime repo.")
endif()

set(COMPUTE_RUNTIME_LEVEL_ZERO_INCLUDE "${UR_COMPUTE_RUNTIME_REPO}/level_zero/include")
set(COMPUTE_RUNTIME_REPO_PATH "${UR_COMPUTE_RUNTIME_REPO}")
endif()

message(STATUS "Using Level Zero include headers from ${COMPUTE_RUNTIME_LEVEL_ZERO_INCLUDE}")

add_library(ComputeRuntimeLevelZero-Headers INTERFACE)
set(COMPUTE_RUNTIME_LEVEL_ZERO_INCLUDE "${exp-headers_SOURCE_DIR}/../..")
message(STATUS "Level Zero Adapter: Using Level Zero headers from ${COMPUTE_RUNTIME_LEVEL_ZERO_INCLUDE}")
target_include_directories(ComputeRuntimeLevelZero-Headers
INTERFACE "$<BUILD_INTERFACE:${COMPUTE_RUNTIME_LEVEL_ZERO_INCLUDE}>"
"$<BUILD_INTERFACE:${COMPUTE_RUNTIME_REPO_PATH}>"
"$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
)