diff options
| author |   Lijian Zhang <Lijian.Zhang@arm.com> | 2018-09-10 17:13:56 +0800 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-10-01 09:28:41 +0000 |
| commit | 2e2372117d35191a0e6c096c5f989930de6e12b1 (patch) | |
| tree | 16ba106360c4bda39b78ee02f515cbbb2c284e0f /src/cmake | |
| parent | 88c6e0086b15963b4d1a268e1fe8bbc2bcd9779c (diff) | |
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 <Lijian.Zhang@arm.com>
Reviewed-by: Sirshak Das <sirshak.das@arm.com>
Reviewed-by: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
Diffstat (limited to 'src/cmake')
| -rw-r--r-- | src/cmake/cpu.cmake | 16 |
1 files changed, 16 insertions, 0 deletions
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) |