| // Copyright 2017 Google Inc. |
| // |
| // 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_ARM_H_ |
| #define CPU_FEATURES_INCLUDE_CPUINFO_ARM_H_ |
| |
| #include "cpu_features_macros.h" |
| |
| CPU_FEATURES_START_CPP_NAMESPACE |
| |
| typedef struct { |
| unsigned int vfp : 1; // Vector Floating Point. |
| unsigned int iwmmxt : 1; // Intel Wireless MMX Technology. |
| unsigned int neon : 1; // Advanced SIMD. |
| unsigned int vfpv3 : 1; // VFP version 3 |
| unsigned int vfpv3d16 : 1; // VFP version 3 with 16 D-registers |
| unsigned int vfpv4 : 1; // VFP version 4 with fast context switching |
| unsigned int idiva : 1; // SDIV and UDIV hardware division in ARM mode. |
| unsigned int idivt : 1; // SDIV and UDIV hardware division in Thumb mode. |
| unsigned int aes : 1; // Hardware-accelerated Advanced Encryption Standard. |
| unsigned int pmull : 1; // Polynomial multiply long. |
| unsigned int sha1 : 1; // Hardware-accelerated SHA1. |
| unsigned int sha2 : 1; // Hardware-accelerated SHA2-256. |
| unsigned int crc32 : 1; // Hardware-accelerated CRC-32. |
| |
| // Make sure to update ArmFeaturesEnum below if you add a field here. |
| } ArmFeatures; |
| |
| typedef struct { |
| ArmFeatures features; |
| int implementer; |
| int architecture; |
| int variant; |
| int part; |
| int revision; |
| } ArmInfo; |
| |
| // TODO(user): Add macros to know which features are present at compile |
| // time. |
| |
| ArmInfo GetArmInfo(void); |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // Introspection functions |
| |
| typedef enum { |
| ARM_VFP, |
| ARM_IWMMXT, |
| ARM_NEON, |
| ARM_VFPV3, |
| ARM_VFPV3D16, |
| ARM_VFPV4, |
| ARM_IDIVA, |
| ARM_IDIVT, |
| ARM_AES, |
| ARM_PMULL, |
| ARM_SHA1, |
| ARM_SHA2, |
| ARM_CRC32, |
| ARM_LAST_, |
| } ArmFeaturesEnum; |
| |
| int GetArmFeaturesEnumValue(const ArmFeatures* features, ArmFeaturesEnum value); |
| |
| const char* GetArmFeaturesEnumName(ArmFeaturesEnum); |
| |
| CPU_FEATURES_END_CPP_NAMESPACE |
| |
| #endif // CPU_FEATURES_INCLUDE_CPUINFO_ARM_H_ |