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55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
// Copyright 2017 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef CPU_FEATURES_INCLUDE_CPUINFO_COMMON_H_
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#define CPU_FEATURES_INCLUDE_CPUINFO_COMMON_H_
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#include "cpu_features_macros.h"
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CPU_FEATURES_START_CPP_NAMESPACE
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typedef enum {
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CPU_FEATURE_CACHE_NULL = 0,
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CPU_FEATURE_CACHE_DATA = 1,
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CPU_FEATURE_CACHE_INSTRUCTION = 2,
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CPU_FEATURE_CACHE_UNIFIED = 3,
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CPU_FEATURE_CACHE_TLB = 4,
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CPU_FEATURE_CACHE_DTLB = 5,
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CPU_FEATURE_CACHE_STLB = 6,
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CPU_FEATURE_CACHE_PREFETCH = 7
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} CacheType;
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typedef struct {
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int level;
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CacheType cache_type;
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int cache_size; // Cache size in bytes
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int ways; // Associativity, 0 undefined, 0xFF fully associative
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int line_size; // Cache line size in bytes
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int tlb_entries; // number of entries for TLB
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int partitioning; // number of lines per sector
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} CacheLevelInfo;
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// Increase this value if more cache levels are needed.
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#ifndef CPU_FEATURES_MAX_CACHE_LEVEL
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#define CPU_FEATURES_MAX_CACHE_LEVEL 10
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#endif
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typedef struct {
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int size;
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CacheLevelInfo levels[CPU_FEATURES_MAX_CACHE_LEVEL];
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} CacheInfo;
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CPU_FEATURES_END_CPP_NAMESPACE
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#endif // CPU_FEATURES_INCLUDE_CPUINFO_COMMON_H_
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