diff options
Diffstat (limited to 'src/cmake/cpu.cmake')
| -rw-r--r-- | src/cmake/cpu.cmake | 122 |
1 files changed, 81 insertions, 41 deletions
diff --git a/src/cmake/cpu.cmake b/src/cmake/cpu.cmake index 623c9ded88e..caeccc050cf 100644 --- a/src/cmake/cpu.cmake +++ b/src/cmake/cpu.cmake @@ -74,55 +74,95 @@ endif() ############################################################################## # CPU optimizations and multiarch support ############################################################################## +macro(add_vpp_march_variant v) + cmake_parse_arguments(ARG + "OFF" + "N_PREFETCHES" + "FLAGS" + ${ARGN} + ) + + if(ARG_FLAGS) + set(flags_ok 1) + set(fs "") + foreach(f ${ARG_FLAGS}) + string(APPEND fs " ${f}") + string(REGEX REPLACE "[-=+]" "_" sfx ${f}) + if(NOT DEFINED compiler_flag${sfx}) + check_c_compiler_flag(${f} compiler_flag${sfx}) + endif() + if(NOT compiler_flag${sfx}) + unset(flags_ok) + endif() + endforeach() + if(ARG_N_PREFETCHES) + string(APPEND fs " -DCLIB_N_PREFETCHES=${ARG_N_PREFETCHES}") + endif() + if(flags_ok) + string(TOUPPER ${v} uv) + if(ARG_OFF) + option(VPP_MARCH_VARIANT_${uv} "Build ${v} multiarch variant." OFF) + else() + option(VPP_MARCH_VARIANT_${uv} "Build ${v} multiarch variant." ON) + endif() + if (VPP_MARCH_VARIANT_${uv}) + list(APPEND MARCH_VARIANTS "${v}\;${fs}") + endif() + endif() + endif() +endmacro() + 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=haswell" compiler_flag_march_haswell) - if(compiler_flag_march_haswell) - list(APPEND MARCH_VARIANTS "hsw\;-march=haswell -mtune=haswell") - endif() - check_c_compiler_flag("-march=tremont" compiler_flag_march_tremont) - if(compiler_flag_march_tremont) - list(APPEND MARCH_VARIANTS "trm\;-march=tremont -mtune=tremont") - endif() + + add_vpp_march_variant(hsw + FLAGS -march=haswell -mtune=haswell + ) + + add_vpp_march_variant(trm + FLAGS -march=tremont -mtune=tremont + OFF + ) + if (GNU_ASSEMBLER_AVX512_BUG) message(WARNING "AVX-512 multiarch variant(s) disabled due to GNU Assembler bug") else() - check_c_compiler_flag("-mprefer-vector-width=256" compiler_flag_mprefer_vector_width) - check_c_compiler_flag("-march=skylake-avx512" compiler_flag_march_skylake_avx512) - check_c_compiler_flag("-march=icelake-client" compiler_flag_march_icelake_client) - if(compiler_flag_march_skylake_avx512 AND compiler_flag_mprefer_vector_width) - list(APPEND MARCH_VARIANTS "skx\;-march=skylake-avx512 -mtune=skylake-avx512 -mprefer-vector-width=256") - endif() - if(compiler_flag_march_icelake_client AND compiler_flag_mprefer_vector_width) - list(APPEND MARCH_VARIANTS "icl\;-march=icelake-client -mtune=icelake-client -mprefer-vector-width=512") - endif() + add_vpp_march_variant(skx + FLAGS -march=skylake-avx512 -mtune=skylake-avx512 -mprefer-vector-width=256 + ) + + add_vpp_march_variant(icl + FLAGS -march=icelake-client -mtune=icelake-client -mprefer-vector-width=512 + ) 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=armv8.2-a+crc+crypto+lse" compiler_flag_march_core_octeontx2) - if(compiler_flag_march_core_octeontx2) - list(APPEND MARCH_VARIANTS "octeontx2\;-march=armv8.2-a+crc+crypto+lse -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_ID STREQUAL "GNU" AND (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 8.3)) - 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() - check_c_compiler_flag("-march=armv8.2-a+crc+crypto -mtune=neoverse-n1" compiler_flag_march_neoversen1) - if(compiler_flag_march_neoversen1) - list(APPEND MARCH_VARIANTS "neoversen1\;-march=armv8.2-a+crc+crypto -mtune=neoverse-n1 -DCLIB_N_PREFETCHES=6") - endif() + + add_vpp_march_variant(qdf24xx + FLAGS -march=armv8-a+crc+crypto -mtune=qdf24xx + N_PREFETCHES 8 + OFF + ) + + add_vpp_march_variant(octeontx2 + FLAGS -march=armv8.2-a+crc+crypto+lse + N_PREFETCHES 8 + ) + + add_vpp_march_variant(thunderx2t99 + FLAGS -march=armv8.1-a+crc+crypto -mtune=thunderx2t99 + N_PREFETCHES 8 + ) + + add_vpp_march_variant(cortexa72 + FLAGS -march=armv8-a+crc+crypto -mtune=cortex-a72 + N_PREFETCHES 6 + ) + + add_vpp_march_variant(neoversen1 + FLAGS -march=armv8.2-a+crc+crypto -mtune=neoverse-n1 + N_PREFETCHES 6 + ) endif() macro(vpp_library_set_multiarch_sources lib) |