diff options
Diffstat (limited to 'src/cmake/cpu.cmake')
| -rw-r--r-- | src/cmake/cpu.cmake | 46 |
1 files changed, 31 insertions, 15 deletions
diff --git a/src/cmake/cpu.cmake b/src/cmake/cpu.cmake index 18a1210f541..25e966dcf7a 100644 --- a/src/cmake/cpu.cmake +++ b/src/cmake/cpu.cmake @@ -24,16 +24,21 @@ endmacro() ############################################################################## # Cache line size ############################################################################## -if(DEFINED VPP_CACHE_LINE_SIZE) - # Cache line size assigned via cmake args -elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*)") - set(VPP_CACHE_LINE_SIZE 128) + +if(DEFINED VPP_PLATFORM_CACHE_LINE_SIZE) + set(VPP_CACHE_LINE_SIZE ${VPP_PLATFORM_CACHE_LINE_SIZE}) else() - set(VPP_CACHE_LINE_SIZE 64) -endif() + if(DEFINED VPP_CACHE_LINE_SIZE) + # Cache line size assigned via cmake args + elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*)") + set(VPP_CACHE_LINE_SIZE 128) + else() + set(VPP_CACHE_LINE_SIZE 64) + endif() -set(VPP_CACHE_LINE_SIZE ${VPP_CACHE_LINE_SIZE} - CACHE STRING "Target CPU cache line size") + set(VPP_CACHE_LINE_SIZE ${VPP_CACHE_LINE_SIZE} + CACHE STRING "Target CPU cache line size") +endif() set_log2_cacheline_size(VPP_LOG2_CACHE_LINE_SIZE ${VPP_CACHE_LINE_SIZE}) @@ -57,7 +62,9 @@ endif() # CPU optimizations and multiarch support ############################################################################## -option(VPP_BUILD_NATIVE_ONLY "Build only for native CPU." OFF) +if(NOT DEFINED VPP_PLATFORM) + option(VPP_BUILD_NATIVE_ONLY "Build only for native CPU." OFF) +endif() macro(add_vpp_march_variant v) cmake_parse_arguments(ARG @@ -104,14 +111,23 @@ macro(add_vpp_march_variant v) endif() endmacro() -if(VPP_BUILD_NATIVE_ONLY) +if(DEFINED VPP_PLATFORM) + if(DEFINED VPP_PLATFORM_MARCH_FLAGS) + set(VPP_DEFAULT_MARCH_FLAGS ${VPP_PLATFORM_MARCH_FLAGS}) + check_c_compiler_flag(${VPP_DEFAULT_MARCH_FLAGS} compiler_flag_march) + if(NOT compiler_flag_march) + message(FATAL_ERROR "platform build with ${VPP_DEFAULT_MARCH_FLAGS} is not supported by compiler") + endif() + else() + set(VPP_DEFAULT_MARCH_FLAGS "") + endif() + set(MARCH_VARIANTS_NAMES "platform-only") +elseif(VPP_BUILD_NATIVE_ONLY) set(VPP_BUILD_NATIVE_ARCH "native" CACHE STRING "native CPU -march= value.") set(VPP_DEFAULT_MARCH_FLAGS -march=${VPP_BUILD_NATIVE_ARCH}) - if(VPP_BUILD_NATIVE_ONLY) - check_c_compiler_flag(${VPP_DEFAULT_MARCH_FLAGS} compiler_flag_march) - if(NOT compiler_flag_march) - message(FATAL_ERROR "Native-only build with ${VPP_DEFAULT_MARCH_FLAGS} is not supported by compiler") - endif() + check_c_compiler_flag(${VPP_DEFAULT_MARCH_FLAGS} compiler_flag_march) + if(NOT compiler_flag_march) + message(FATAL_ERROR "Native-only build with ${VPP_DEFAULT_MARCH_FLAGS} is not supported by compiler") endif() set(MARCH_VARIANTS_NAMES "native-only") elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*") |