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148 lines
3.6 KiB
C
148 lines
3.6 KiB
C
// Copyright 2017 Google Inc.
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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 THIRD_PARTY_CPU_FEATURES_INCLUDE_CPUINFO_X86_H_
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#define THIRD_PARTY_CPU_FEATURES_INCLUDE_CPUINFO_X86_H_
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#include "cpu_features_macros.h"
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START_CPP_NAMESPACE
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// See https://en.wikipedia.org/wiki/CPUID for a list of x86 cpu features.
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typedef struct {
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int aes : 1;
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int erms : 1;
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int f16c : 1;
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int fma3 : 1;
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int vpclmulqdq : 1;
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int bmi1 : 1;
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int bmi2 : 1;
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int ssse3 : 1;
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int sse4_1 : 1;
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int sse4_2 : 1;
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int avx : 1;
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int avx2 : 1;
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int avx512f : 1;
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int avx512cd : 1;
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int avx512er : 1;
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int avx512pf : 1;
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int avx512bw : 1;
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int avx512dq : 1;
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int avx512vl : 1;
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int avx512ifma : 1;
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int avx512vbmi : 1;
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int avx512vbmi2 : 1;
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int avx512vnni : 1;
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int avx512bitalg : 1;
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int avx512vpopcntdq : 1;
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int avx512_4vnniw : 1;
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int avx512_4vbmi2 : 1;
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// Make sure to update X86FeaturesEnum below if you add a field here.
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} X86Features;
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typedef struct {
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X86Features features;
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int family;
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int model;
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int stepping;
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char vendor[13]; // 0 terminated string
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} X86Info;
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// Calls cpuid and returns an initialized X86info.
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// This function is guaranteed to be malloc, memset and memcpy free.
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X86Info GetX86Info(void);
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typedef enum {
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X86_UNKNOWN,
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INTEL_CORE, // CORE
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INTEL_PNR, // PENRYN
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INTEL_NHM, // NEHALEM
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INTEL_ATOM_BNL, // BONNELL
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INTEL_WSM, // WESTMERE
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INTEL_SNB, // SANDYBRIDGE
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INTEL_IVB, // IVYBRIDGE
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INTEL_ATOM_SMT, // SILVERMONT
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INTEL_HSW, // HASWELL
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INTEL_BDW, // BROADWELL
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INTEL_SKL, // SKYLAKE
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INTEL_ATOM_GMT, // GOLDMONT
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INTEL_KBL, // KABY LAKE
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INTEL_CFL, // COFFEE LAKE
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INTEL_CNL, // CANON LAKE
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AMD_HAMMER, // K8
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AMD_K10, // K10
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AMD_BOBCAT, // K14
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AMD_BULLDOZER, // K15
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AMD_JAGUAR, // K16
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AMD_ZEN, // K17
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} X86Microarchitecture;
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// Returns the underlying microarchitecture by looking at X86Info's vendor,
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// family and model.
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X86Microarchitecture GetX86Microarchitecture(const X86Info* info);
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// Calls cpuid and fills the brand_string.
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// - brand_string *must* be of size 49 (beware of array decaying).
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// - brand_string will be zero terminated.
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// - This function calls memcpy.
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void FillX86BrandString(char brand_string[49]);
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////////////////////////////////////////////////////////////////////////////////
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// Introspection functions
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typedef enum {
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X86_AES,
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X86_ERMS,
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X86_F16C,
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X86_FMA3,
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X86_VPCLMULQDQ,
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X86_BMI1,
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X86_BMI2,
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X86_SSSE3,
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X86_SSE4_1,
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X86_SSE4_2,
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X86_AVX,
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X86_AVX2,
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X86_AVX512F,
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X86_AVX512CD,
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X86_AVX512ER,
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X86_AVX512PF,
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X86_AVX512BW,
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X86_AVX512DQ,
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X86_AVX512VL,
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X86_AVX512IFMA,
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X86_AVX512VBMI,
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X86_AVX512VBMI2,
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X86_AVX512VNNI,
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X86_AVX512BITALG,
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X86_AVX512VPOPCNTDQ,
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X86_AVX512_4VNNIW,
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X86_AVX512_4VBMI2,
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X86_LAST_,
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} X86FeaturesEnum;
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int GetX86FeaturesEnumValue(const X86Features* features, X86FeaturesEnum value);
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const char* GetX86FeaturesEnumName(X86FeaturesEnum);
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const char* GetX86MicroarchitectureName(X86Microarchitecture);
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END_CPP_NAMESPACE
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#endif // THIRD_PARTY_CPU_FEATURES_INCLUDE_CPUINFO_X86_H_
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