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| 1 | +# Copyright 2022 Intel Corporation |
| 2 | +# |
| 3 | +# Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +# you may not use this file except in compliance with the License. |
| 5 | +# You may obtain a copy of the License at |
| 6 | +# |
| 7 | +# http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +# |
| 9 | +# Unless required by applicable law or agreed to in writing, software |
| 10 | +# distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +# See the License for the specific language governing permissions and |
| 13 | +# limitations under the License. |
| 14 | +# |
| 15 | +# CMake find_package() module for level-zero |
| 16 | +# |
| 17 | +# Example usage: |
| 18 | +# |
| 19 | +# find_package(LevelZero) |
| 20 | +# |
| 21 | +# If successful, the following variables will be defined: |
| 22 | +# LevelZero_FOUND |
| 23 | +# LevelZero_INCLUDE_DIR |
| 24 | +# LevelZero_LIBRARY |
| 25 | +# LevelZero_LIBRARIES_DIR |
| 26 | +# LevelZero_LIBRARIES_DIR |
| 27 | +# LevelZero_VERSION_MINOR |
| 28 | +# LevelZero_VERSION_PATCH |
| 29 | +# LevelZero_VERSION |
| 30 | +# |
| 31 | +# By default, the module searches the standard paths to locate the "ze_api.h" |
| 32 | +# and the ze_loader shared library. When using a custom level-zero installation, |
| 33 | +# the environment variable "LEVEL_ZERO_DIR" should be specified telling the |
| 34 | +# module to get the level-zero library and headers from that location. |
| 35 | + |
| 36 | +include(FindPackageHandleStandardArgs) |
| 37 | + |
| 38 | +if(DEFINED ENV{LEVEL_ZERO_DIR}) |
| 39 | + find_path(LevelZero_INCLUDE_DIR |
| 40 | + NAMES level_zero/ze_api.h |
| 41 | + PATHS $ENV{LEVEL_ZERO_DIR} |
| 42 | + NO_DEFAULT_PATH |
| 43 | + ) |
| 44 | + |
| 45 | + find_library(LevelZero_LIBRARY |
| 46 | + NAMES ze_loader |
| 47 | + PATHS $ENV{LEVEL_ZERO_DIR} |
| 48 | + NO_DEFAULT_PATH |
| 49 | + ) |
| 50 | +else() |
| 51 | + find_path(LevelZero_INCLUDE_DIR |
| 52 | + NAMES level_zero/ze_api.h |
| 53 | + ) |
| 54 | + |
| 55 | + find_library(LevelZero_LIBRARY |
| 56 | + NAMES ze_loader |
| 57 | + ) |
| 58 | +endif() |
| 59 | + |
| 60 | +function(compare_versions) |
| 61 | +endfunction() |
| 62 | + |
| 63 | +function(get_l0_version) |
| 64 | + |
| 65 | + set(L0_VERSIONEER_SRC |
| 66 | + [====[ |
| 67 | + #include <iostream> |
| 68 | + #include <level_zero/loader/ze_loader.h> |
| 69 | + #include <string> |
| 70 | + int main() { |
| 71 | + ze_result_t result; |
| 72 | + std::string loader("loader"); |
| 73 | + zel_component_version_t *versions; |
| 74 | + size_t size = 0; |
| 75 | + result = zeInit(0); |
| 76 | + if (result != ZE_RESULT_SUCCESS) { |
| 77 | + std::cerr << "Failed to init ze driver" << std::endl; |
| 78 | + return -1; |
| 79 | + } |
| 80 | + zelLoaderGetVersions(&size, nullptr); |
| 81 | + versions = new zel_component_version_t[size]; |
| 82 | + zelLoaderGetVersions(&size, versions); |
| 83 | + for (size_t i = 0; i < size; i++) { |
| 84 | + if (loader.compare(versions[i].component_name) == 0) { |
| 85 | + std::cout << versions[i].component_lib_version.major << "." |
| 86 | + << versions[i].component_lib_version.minor << "." |
| 87 | + << versions[i].component_lib_version.patch; |
| 88 | + break; |
| 89 | + } |
| 90 | + } |
| 91 | + delete[] versions; |
| 92 | + } |
| 93 | + ]====] |
| 94 | + ) |
| 95 | + |
| 96 | + set(L0_VERSIONEER_FILE ${CMAKE_BINARY_DIR}/temp/l0_versioneer.cpp) |
| 97 | + |
| 98 | + file(WRITE ${L0_VERSIONEER_FILE} "${L0_VERSIONEER_SRC}") |
| 99 | + cmake_path(GET LevelZero_LIBRARY PARENT_PATH LevelZero_LIBRARIES_PATH) |
| 100 | + set(LevelZero_LIBRARIES_DIR ${LevelZero_LIBRARIES_PATH} PARENT_SCOPE) |
| 101 | + try_run(L0_VERSIONEER_RUN L0_VERSIONEER_COMPILE |
| 102 | + "${CMAKE_BINARY_DIR}" |
| 103 | + "${L0_VERSIONEER_FILE}" |
| 104 | + LINK_LIBRARIES ze_loader |
| 105 | + CMAKE_FLAGS |
| 106 | + "-DINCLUDE_DIRECTORIES=${LevelZero_INCLUDE_DIR}/level_zero" |
| 107 | + "-DLINK_LIBRARIES=${LevelZero_LIBRARIES_PATH}" |
| 108 | + RUN_OUTPUT_VARIABLE L0_VERSION |
| 109 | + ) |
| 110 | + string(REPLACE "." ";" VERSION_LIST ${L0_VERSION}) |
| 111 | + list(GET VERSION_LIST 0 L0_VERSION_MAJOR) |
| 112 | + list(GET VERSION_LIST 1 L0_VERSION_MINOR) |
| 113 | + list(GET VERSION_LIST 2 L0_VERSION_PATCH) |
| 114 | + |
| 115 | + set(LevelZero_VERSION ${L0_VERSION} PARENT_SCOPE) |
| 116 | + set(LevelZero_VERSION_MAJOR ${L0_VERSION_MAJOR} PARENT_SCOPE) |
| 117 | + set(LevelZero_VERSION_MINOR ${L0_VERSION_MINOR} PARENT_SCOPE) |
| 118 | + set(LevelZero_VERSION_PATCH ${L0_VERSION_PATCH} PARENT_SCOPE) |
| 119 | +endfunction(get_l0_version) |
| 120 | + |
| 121 | +if(LevelZero_INCLUDE_DIR AND LevelZero_LIBRARY) |
| 122 | + list(APPEND LevelZero_LIBRARIES "${LevelZero_LIBRARY}") |
| 123 | + list(APPEND LevelZero_INCLUDE_DIRS ${LevelZero_INCLUDE_DIR}) |
| 124 | + if(OpenCL_FOUND) |
| 125 | + list(APPEND LevelZero_INCLUDE_DIRS ${OpenCL_INCLUDE_DIRS}) |
| 126 | + endif() |
| 127 | + get_l0_version() |
| 128 | + |
| 129 | + if(NOT TARGET LevelZero::LevelZero) |
| 130 | + add_library(LevelZero::LevelZero INTERFACE IMPORTED) |
| 131 | + set_target_properties(LevelZero::LevelZero |
| 132 | + PROPERTIES INTERFACE_LINK_LIBRARIES "${LevelZero_LIBRARIES}" |
| 133 | + ) |
| 134 | + set_target_properties(LevelZero::LevelZero |
| 135 | + PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${LevelZero_INCLUDE_DIRS}" |
| 136 | + ) |
| 137 | + endif() |
| 138 | +endif() |
| 139 | + |
| 140 | +# Check if a specific version of Level Zero is required |
| 141 | +if(LevelZero_FIND_VERSION AND (DEFINED LevelZero_VERSION)) |
| 142 | + string(COMPARE |
| 143 | + LESS_EQUAL |
| 144 | + ${LevelZero_FIND_VERSION} |
| 145 | + ${LevelZero_VERSION} |
| 146 | + VERSION_MATCH |
| 147 | + ) |
| 148 | + if(VERSION_MATCH) |
| 149 | + set(LevelZero_FOUND TRUE) |
| 150 | + else() |
| 151 | + set(LevelZero_FOUND FALSE) |
| 152 | + endif() |
| 153 | +else() |
| 154 | + set(LevelZero_FOUND TRUE) |
| 155 | +endif() |
| 156 | + |
| 157 | +message(STATUS "LEVEL_ZERO_FOUND: ${LevelZero_FOUND}") |
| 158 | +message(STATUS "LevelZero_INCLUDE_DIR: ${LevelZero_INCLUDE_DIR}") |
| 159 | +message(STATUS "LevelZero_LIBRARY: ${LevelZero_LIBRARY}") |
| 160 | +message(STATUS "LevelZero_LIBRARIES_DIR: ${LevelZero_LIBRARIES_DIR}") |
| 161 | +message(STATUS "LevelZero_VERSION: ${LevelZero_VERSION}") |
| 162 | + |
| 163 | +find_package_handle_standard_args(LevelZero |
| 164 | + REQUIRED_VARS |
| 165 | + LevelZero_FOUND |
| 166 | + LevelZero_INCLUDE_DIR |
| 167 | + LevelZero_LIBRARY |
| 168 | + LevelZero_LIBRARIES_DIR |
| 169 | + LevelZero_LIBRARIES_DIR |
| 170 | + LevelZero_VERSION_MINOR |
| 171 | + LevelZero_VERSION_PATCH |
| 172 | + LevelZero_VERSION |
| 173 | + HANDLE_COMPONENTS |
| 174 | +) |
| 175 | +mark_as_advanced(LevelZero_LIBRARY LevelZero_INCLUDE_DIR) |
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