// Copyright 2017 Google LLC // // 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. #ifndef CPU_FEATURES_INCLUDE_CPUINFO_COMMON_H_ #define CPU_FEATURES_INCLUDE_CPUINFO_COMMON_H_ #include "cpu_features_macros.h" CPU_FEATURES_START_CPP_NAMESPACE typedef enum { CPU_FEATURE_CACHE_NULL = 0, CPU_FEATURE_CACHE_DATA = 1, CPU_FEATURE_CACHE_INSTRUCTION = 2, CPU_FEATURE_CACHE_UNIFIED = 3, CPU_FEATURE_CACHE_TLB = 4, CPU_FEATURE_CACHE_DTLB = 5, CPU_FEATURE_CACHE_STLB = 6, CPU_FEATURE_CACHE_PREFETCH = 7 } CacheType; typedef struct { int level; CacheType cache_type; int cache_size; // Cache size in bytes int ways; // Associativity, 0 undefined, 0xFF fully associative int line_size; // Cache line size in bytes int tlb_entries; // number of entries for TLB int partitioning; // number of lines per sector } CacheLevelInfo; // Increase this value if more cache levels are needed. #ifndef CPU_FEATURES_MAX_CACHE_LEVEL #define CPU_FEATURES_MAX_CACHE_LEVEL 10 #endif typedef struct { int size; CacheLevelInfo levels[CPU_FEATURES_MAX_CACHE_LEVEL]; } CacheInfo; CPU_FEATURES_END_CPP_NAMESPACE #endif // CPU_FEATURES_INCLUDE_CPUINFO_COMMON_H_