1 // Copyright 2017 Google LLC 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_AARCH64_H_ 16 #define CPU_FEATURES_INCLUDE_CPUINFO_AARCH64_H_ 17 18 #include "cpu_features_cache_info.h" 19 #include "cpu_features_macros.h" 20 21 CPU_FEATURES_START_CPP_NAMESPACE 22 23 typedef struct { 24 int fp : 1; // Floating-point. 25 int asimd : 1; // Advanced SIMD. 26 int evtstrm : 1; // Generic timer generated events. 27 int aes : 1; // Hardware-accelerated Advanced Encryption Standard. 28 int pmull : 1; // Polynomial multiply long. 29 int sha1 : 1; // Hardware-accelerated SHA1. 30 int sha2 : 1; // Hardware-accelerated SHA2-256. 31 int crc32 : 1; // Hardware-accelerated CRC-32. 32 int atomics : 1; // Armv8.1 atomic instructions. 33 int fphp : 1; // Half-precision floating point support. 34 int asimdhp : 1; // Advanced SIMD half-precision support. 35 int cpuid : 1; // Access to certain ID registers. 36 int asimdrdm : 1; // Rounding Double Multiply Accumulate/Subtract. 37 int jscvt : 1; // Support for JavaScript conversion. 38 int fcma : 1; // Floating point complex numbers. 39 int lrcpc : 1; // Support for weaker release consistency. 40 int dcpop : 1; // Data persistence writeback. 41 int sha3 : 1; // Hardware-accelerated SHA3. 42 int sm3 : 1; // Hardware-accelerated SM3. 43 int sm4 : 1; // Hardware-accelerated SM4. 44 int asimddp : 1; // Dot product instruction. 45 int sha512 : 1; // Hardware-accelerated SHA512. 46 int sve : 1; // Scalable Vector Extension. 47 int asimdfhm : 1; // Additional half-precision instructions. 48 int dit : 1; // Data independent timing. 49 int uscat : 1; // Unaligned atomics support. 50 int ilrcpc : 1; // Additional support for weaker release consistency. 51 int flagm : 1; // Flag manipulation instructions. 52 int ssbs : 1; // Speculative Store Bypass Safe PSTATE bit. 53 int sb : 1; // Speculation barrier. 54 int paca : 1; // Address authentication. 55 int pacg : 1; // Generic authentication. 56 int dcpodp : 1; // Data cache clean to point of persistence. 57 int sve2 : 1; // Scalable Vector Extension (version 2). 58 int sveaes : 1; // SVE AES instructions. 59 int svepmull : 1; // SVE polynomial multiply long instructions. 60 int svebitperm : 1; // SVE bit permute instructions. 61 int svesha3 : 1; // SVE SHA3 instructions. 62 int svesm4 : 1; // SVE SM4 instructions. 63 int flagm2 : 1; // Additional flag manipulation instructions. 64 int frint : 1; // Floating point to integer rounding. 65 int svei8mm : 1; // SVE Int8 matrix multiplication instructions. 66 int svef32mm : 1; // SVE FP32 matrix multiplication instruction. 67 int svef64mm : 1; // SVE FP64 matrix multiplication instructions. 68 int svebf16 : 1; // SVE BFloat16 instructions. 69 int i8mm : 1; // Int8 matrix multiplication instructions. 70 int bf16 : 1; // BFloat16 instructions. 71 int dgh : 1; // Data Gathering Hint instruction. 72 int rng : 1; // True random number generator support. 73 int bti : 1; // Branch target identification. 74 int mte : 1; // Memory tagging extension. 75 76 // Make sure to update Aarch64FeaturesEnum below if you add a field here. 77 } Aarch64Features; 78 79 typedef struct { 80 Aarch64Features features; 81 int implementer; 82 int variant; 83 int part; 84 int revision; 85 } Aarch64Info; 86 87 Aarch64Info GetAarch64Info(void); 88 89 //////////////////////////////////////////////////////////////////////////////// 90 // Introspection functions 91 92 typedef enum { 93 AARCH64_FP, 94 AARCH64_ASIMD, 95 AARCH64_EVTSTRM, 96 AARCH64_AES, 97 AARCH64_PMULL, 98 AARCH64_SHA1, 99 AARCH64_SHA2, 100 AARCH64_CRC32, 101 AARCH64_ATOMICS, 102 AARCH64_FPHP, 103 AARCH64_ASIMDHP, 104 AARCH64_CPUID, 105 AARCH64_ASIMDRDM, 106 AARCH64_JSCVT, 107 AARCH64_FCMA, 108 AARCH64_LRCPC, 109 AARCH64_DCPOP, 110 AARCH64_SHA3, 111 AARCH64_SM3, 112 AARCH64_SM4, 113 AARCH64_ASIMDDP, 114 AARCH64_SHA512, 115 AARCH64_SVE, 116 AARCH64_ASIMDFHM, 117 AARCH64_DIT, 118 AARCH64_USCAT, 119 AARCH64_ILRCPC, 120 AARCH64_FLAGM, 121 AARCH64_SSBS, 122 AARCH64_SB, 123 AARCH64_PACA, 124 AARCH64_PACG, 125 AARCH64_DCPODP, 126 AARCH64_SVE2, 127 AARCH64_SVEAES, 128 AARCH64_SVEPMULL, 129 AARCH64_SVEBITPERM, 130 AARCH64_SVESHA3, 131 AARCH64_SVESM4, 132 AARCH64_FLAGM2, 133 AARCH64_FRINT, 134 AARCH64_SVEI8MM, 135 AARCH64_SVEF32MM, 136 AARCH64_SVEF64MM, 137 AARCH64_SVEBF16, 138 AARCH64_I8MM, 139 AARCH64_BF16, 140 AARCH64_DGH, 141 AARCH64_RNG, 142 AARCH64_BTI, 143 AARCH64_MTE, 144 AARCH64_LAST_, 145 } Aarch64FeaturesEnum; 146 147 int GetAarch64FeaturesEnumValue(const Aarch64Features* features, 148 Aarch64FeaturesEnum value); 149 150 const char* GetAarch64FeaturesEnumName(Aarch64FeaturesEnum); 151 152 CPU_FEATURES_END_CPP_NAMESPACE 153 154 #if !defined(CPU_FEATURES_ARCH_AARCH64) 155 #error "Including cpuinfo_aarch64.h from a non-aarch64 target." 156 #endif 157 158 #endif // CPU_FEATURES_INCLUDE_CPUINFO_AARCH64_H_ 159