Artem Alekseev | 653d581 | 2019-07-02 17:52:25 +0300 | [diff] [blame] | 1 | // Copyright 2017 Google Inc. |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | #ifndef CPU_FEATURES_INCLUDE_CPUINFO_COMMON_H_ |
| 16 | #define CPU_FEATURES_INCLUDE_CPUINFO_COMMON_H_ |
| 17 | |
| 18 | #include "cpu_features_macros.h" |
| 19 | |
| 20 | CPU_FEATURES_START_CPP_NAMESPACE |
| 21 | |
| 22 | typedef enum { |
| 23 | CPU_FEATURE_CACHE_NULL = 0, |
| 24 | CPU_FEATURE_CACHE_DATA = 1, |
| 25 | CPU_FEATURE_CACHE_INSTRUCTION = 2, |
| 26 | CPU_FEATURE_CACHE_UNIFIED = 3, |
| 27 | CPU_FEATURE_CACHE_TLB = 4, |
| 28 | CPU_FEATURE_CACHE_DTLB = 5, |
| 29 | CPU_FEATURE_CACHE_STLB = 6, |
| 30 | CPU_FEATURE_CACHE_PREFETCH = 7 |
| 31 | } CacheType; |
| 32 | |
| 33 | typedef struct { |
| 34 | int level; |
| 35 | CacheType cache_type; |
| 36 | int cache_size; // Cache size in bytes |
| 37 | int ways; // Associativity, 0 undefined, 0xFF fully associative |
| 38 | int line_size; // Cache line size in bytes |
| 39 | int tlb_entries; // number of entries for TLB |
| 40 | int partitioning; // number of lines per sector |
| 41 | } CacheLevelInfo; |
| 42 | |
| 43 | // Increase this value if more cache levels are needed. |
| 44 | #ifndef CPU_FEATURES_MAX_CACHE_LEVEL |
| 45 | #define CPU_FEATURES_MAX_CACHE_LEVEL 10 |
| 46 | #endif |
| 47 | typedef struct { |
| 48 | int size; |
| 49 | CacheLevelInfo levels[CPU_FEATURES_MAX_CACHE_LEVEL]; |
| 50 | } CacheInfo; |
| 51 | |
| 52 | CPU_FEATURES_END_CPP_NAMESPACE |
| 53 | |
| 54 | #endif // CPU_FEATURES_INCLUDE_CPUINFO_COMMON_H_ |