# See the License for the specific language governing permissions and
# limitations under the License.
+##############################################################################
+# Cache line size detection
+##############################################################################
+if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*)")
+ file(READ "/proc/cpuinfo" cpuinfo)
+ string(REPLACE "\n" ";" cpuinfo ${cpuinfo})
+ foreach(l ${cpuinfo})
+ string(REPLACE ":" ";" l ${l})
+ list(GET l 0 name)
+ list(GET l 1 value)
+ string(STRIP ${name} name)
+ string(STRIP ${value} value)
+ if(${name} STREQUAL "CPU implementer")
+ set(CPU_IMPLEMENTER ${value})
+ endif()
+ if(${name} STREQUAL "CPU part")
+ set(CPU_PART ${value})
+ endif()
+ endforeach()
+ # Implementer 0x43 - Cavium
+ # Part 0x0af - ThunderX2 is 64B, rest all are 128B
+ if (${CPU_IMPLEMENTER} STREQUAL "0x43")
+ if (${CPU_PART} STREQUAL "0x0af")
+ set(VPP_LOG2_CACHE_LINE_SIZE 6)
+ else()
+ set(VPP_LOG2_CACHE_LINE_SIZE 7)
+ endif()
+ else()
+ set(VPP_LOG2_CACHE_LINE_SIZE 6)
+ endif()
+ math(EXPR VPP_CACHE_LINE_SIZE "1 << ${VPP_LOG2_CACHE_LINE_SIZE}")
+ message(STATUS "ARM AArch64 CPU implementer ${CPU_IMPLEMENTER} part ${CPU_PART} cacheline size ${VPP_CACHE_LINE_SIZE}")
+else()
+ set(VPP_LOG2_CACHE_LINE_SIZE 6)
+endif()
+
+set(VPP_LOG2_CACHE_LINE_SIZE ${VPP_LOG2_CACHE_LINE_SIZE}
+ CACHE STRING "Target CPU cache line size (power of 2)")
+
##############################################################################
# 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" AVX2)
- if(AVX2)
+ 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" AVX512)
- if(AVX512)
+ 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)