From 2e2372117d35191a0e6c096c5f989930de6e12b1 Mon Sep 17 00:00:00 2001 From: Lijian Zhang Date: Mon, 10 Sep 2018 17:13:56 +0800 Subject: Support dynamic dual/quad loop selection on aarch64 Currently, there are three variants available on aarch64, qdf24xx, thunderx2t99, and cortex-a72. -DCLIB_N_PREFETCHES is passed to source code to select dual/quad implementation. Besides, different compiler options are applied on these critical functions. gcc-7.3.0 reports ICE(internal compiler error) with -mtune=thunderx2t99, so -mtune=thunderx2t99 is enabled only when gcc version is greater than 7.3.0 Cavium ThunderX2, Impermenter 0x43, Part 0x0af -march=armv8-a+crc+crypto -mtune=thunderx2t99 Qualcomm Centriq 2400, Impermenter 0x51, Part 0xc00 -march=armv8.1-a+crc+crypto -mtune=qdf24xx Cortex-A72, Impermenter 0x41, Part 0xd08 -march=armv8-a+crc+crypto -mtune=cortex-a72 Change-Id: Id5649c6325c1e642d0fd42535e3908793b13e02a Signed-off-by: Lijian Zhang Reviewed-by: Sirshak Das Reviewed-by: Honnappa Nagarahalli --- src/cmake/cpu.cmake | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'src/cmake') diff --git a/src/cmake/cpu.cmake b/src/cmake/cpu.cmake index bdc9014d944..20dab7bfce1 100644 --- a/src/cmake/cpu.cmake +++ b/src/cmake/cpu.cmake @@ -65,6 +65,22 @@ if(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*") 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) -- cgit 1.2.3-korg