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// 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_
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