diff options
Diffstat (limited to 'modules/cpu.cmake')
| -rw-r--r-- | modules/cpu.cmake | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/modules/cpu.cmake b/modules/cpu.cmake new file mode 100644 index 0000000..c3a4ce4 --- /dev/null +++ b/modules/cpu.cmake @@ -0,0 +1,60 @@ +# Copyright (c) 2019 Cisco and/or its affiliates. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +############################################################################## +# CPU optimizations and multiarch support +############################################################################## +if(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*") + set(CMAKE_C_FLAGS "-march=corei7 -mtune=corei7-avx ${CMAKE_C_FLAGS}") + check_c_compiler_flag("-march=core-avx2" compiler_flag_march_core_avx2) + if(compiler_flag_march_core_avx2) + list(APPEND MARCH_VARIANTS "avx2\;-march=core-avx2 -mtune=core-avx2") + endif() + check_c_compiler_flag("-march=skylake-avx512" compiler_flag_march_skylake_avx512) + if(compiler_flag_march_skylake_avx512) + list(APPEND MARCH_VARIANTS "avx512\;-march=skylake-avx512 -mtune=skylake-avx512") + endif() +elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*)") + set(CMAKE_C_FLAGS "-march=armv8-a+crc ${CMAKE_C_FLAGS}") + check_c_compiler_flag("-march=armv8-a+crc+crypto -mtune=qdf24xx" compiler_flag_march_core_qdf24xx) + if(compiler_flag_march_core_qdf24xx) + list(APPEND MARCH_VARIANTS "qdf24xx\;-march=armv8-a+crc+crypto -DCLIB_N_PREFETCHES=8") + endif() + check_c_compiler_flag("-march=armv8.1-a+crc+crypto -mtune=thunderx2t99" compiler_flag_march_thunderx2t99) + if(compiler_flag_march_thunderx2t99) + if (CMAKE_C_COMPILER_VERSION VERSION_GREATER 7.3) + list(APPEND MARCH_VARIANTS "thunderx2t99\;-march=armv8.1-a+crc+crypto -mtune=thunderx2t99 -DCLIB_N_PREFETCHES=8") + else() + list(APPEND MARCH_VARIANTS "thunderx2t99\;-march=armv8.1-a+crc+crypto -DCLIB_N_PREFETCHES=8") + endif() + endif() + check_c_compiler_flag("-march=armv8-a+crc+crypto -mtune=cortex-a72" compiler_flag_march_cortexa72) + if(compiler_flag_march_cortexa72) + list(APPEND MARCH_VARIANTS "cortexa72\;-march=armv8-a+crc+crypto -mtune=cortex-a72 -DCLIB_N_PREFETCHES=6") + endif() +endif() + +macro(vpp_library_set_multiarch_sources lib) + foreach(V ${MARCH_VARIANTS}) + list(GET V 0 VARIANT) + list(GET V 1 VARIANT_FLAGS) + set(l ${lib}_${VARIANT}) + add_library(${l} OBJECT ${ARGN}) + set_target_properties(${l} PROPERTIES POSITION_INDEPENDENT_CODE ON) + target_compile_options(${l} PUBLIC "-DCLIB_MARCH_VARIANT=${VARIANT}" -Wall -fno-common) + separate_arguments(VARIANT_FLAGS) + target_compile_options(${l} PUBLIC ${VARIANT_FLAGS}) + target_sources(${lib} PRIVATE $<TARGET_OBJECTS:${l}>) + endforeach() +endmacro() + |