diff options
Diffstat (limited to 'libparc/cmake/Modules/detectCacheSize.cmake')
| -rw-r--r-- | libparc/cmake/Modules/detectCacheSize.cmake | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/libparc/cmake/Modules/detectCacheSize.cmake b/libparc/cmake/Modules/detectCacheSize.cmake new file mode 100644 index 00000000..0544c455 --- /dev/null +++ b/libparc/cmake/Modules/detectCacheSize.cmake @@ -0,0 +1,39 @@ +# Copyright (c) 2017 Cisco and/or its affiliates. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# Detect the cache size +# +# XXX: TODO: This is a bug when cross compiling. We are detecting the local +# Cache Line size and not the target cache line size. We should provide some +# way to define this + +set(LEVEL1_DCACHE_LINESIZE 32) + +if( APPLE ) + execute_process(COMMAND sysctl -n hw.cachelinesize + OUTPUT_VARIABLE LEVEL1_DCACHE_LINESIZE + OUTPUT_STRIP_TRAILING_WHITESPACE) +endif( APPLE ) + +if( ${CMAKE_SYSTEM_NAME} STREQUAL "Linux" ) + execute_process(COMMAND getconf LEVEL1_DCACHE_LINESIZE + OUTPUT_VARIABLE LEVEL1_DCACHE_LINESIZE + OUTPUT_STRIP_TRAILING_WHITESPACE) +endif() + + +if ( ${CMAKE_SYSTEM_PROCESSOR} MATCHES "arm" ) + set(LEVEL1_DCACHE_LINESIZE 64) +endif() + +message("-- Cache line size: ${LEVEL1_DCACHE_LINESIZE}") |