// SPDX-FileCopyrightText: 2017 Google Inc.
// SPDX-License-Identifier: Apache-2.0


#ifndef CPU_FEATURES_INCLUDE_CPUINFO_AARCH64_H_
#define CPU_FEATURES_INCLUDE_CPUINFO_AARCH64_H_

#include "cpu_features_cache_info.h"
#include "cpu_features_macros.h"

CPU_FEATURES_START_CPP_NAMESPACE

typedef struct
{
    int fp : 1;        // Floating-point.
    int asimd : 1;     // Advanced SIMD.
    int evtstrm : 1;   // Generic timer generated events.
    int aes : 1;       // Hardware-accelerated Advanced Encryption Standard.
    int pmull : 1;     // Polynomial multiply long.
    int sha1 : 1;      // Hardware-accelerated SHA1.
    int sha2 : 1;      // Hardware-accelerated SHA2-256.
    int crc32 : 1;     // Hardware-accelerated CRC-32.
    int atomics : 1;   // Armv8.1 atomic instructions.
    int fphp : 1;      // Half-precision floating point support.
    int asimdhp : 1;   // Advanced SIMD half-precision support.
    int cpuid : 1;     // Access to certain ID registers.
    int asimdrdm : 1;  // Rounding Double Multiply Accumulate/Subtract.
    int jscvt : 1;     // Support for JavaScript conversion.
    int fcma : 1;      // Floating point complex numbers.
    int lrcpc : 1;     // Support for weaker release consistency.
    int dcpop : 1;     // Data persistence writeback.
    int sha3 : 1;      // Hardware-accelerated SHA3.
    int sm3 : 1;       // Hardware-accelerated SM3.
    int sm4 : 1;       // Hardware-accelerated SM4.
    int asimddp : 1;   // Dot product instruction.
    int sha512 : 1;    // Hardware-accelerated SHA512.
    int sve : 1;       // Scalable Vector Extension.
    int asimdfhm : 1;  // Additional half-precision instructions.
    int dit : 1;       // Data independent timing.
    int uscat : 1;     // Unaligned atomics support.
    int ilrcpc : 1;    // Additional support for weaker release consistency.
    int flagm : 1;     // Flag manipulation instructions.
    int ssbs : 1;      // Speculative Store Bypass Safe PSTATE bit.
    int sb : 1;        // Speculation barrier.
    int paca : 1;      // Address authentication.
    int pacg : 1;      // Generic authentication.

    // Make sure to update Aarch64FeaturesEnum below if you add a field here.
} Aarch64Features;

typedef struct
{
    Aarch64Features features;
    int implementer;
    int variant;
    int part;
    int revision;
} Aarch64Info;

Aarch64Info GetAarch64Info(void);

////////////////////////////////////////////////////////////////////////////////
// Introspection functions

typedef enum
{
    AARCH64_FP,
    AARCH64_ASIMD,
    AARCH64_EVTSTRM,
    AARCH64_AES,
    AARCH64_PMULL,
    AARCH64_SHA1,
    AARCH64_SHA2,
    AARCH64_CRC32,
    AARCH64_ATOMICS,
    AARCH64_FPHP,
    AARCH64_ASIMDHP,
    AARCH64_CPUID,
    AARCH64_ASIMDRDM,
    AARCH64_JSCVT,
    AARCH64_FCMA,
    AARCH64_LRCPC,
    AARCH64_DCPOP,
    AARCH64_SHA3,
    AARCH64_SM3,
    AARCH64_SM4,
    AARCH64_ASIMDDP,
    AARCH64_SHA512,
    AARCH64_SVE,
    AARCH64_ASIMDFHM,
    AARCH64_DIT,
    AARCH64_USCAT,
    AARCH64_ILRCPC,
    AARCH64_FLAGM,
    AARCH64_SSBS,
    AARCH64_SB,
    AARCH64_PACA,
    AARCH64_PACG,
    AARCH64_LAST_,
} Aarch64FeaturesEnum;

int GetAarch64FeaturesEnumValue(const Aarch64Features* features,
    Aarch64FeaturesEnum value);

const char* GetAarch64FeaturesEnumName(Aarch64FeaturesEnum);

CPU_FEATURES_END_CPP_NAMESPACE

#if !defined(CPU_FEATURES_ARCH_AARCH64)
#error "Including cpuinfo_aarch64.h from a non-aarch64 target."
#endif

#endif  // CPU_FEATURES_INCLUDE_CPUINFO_AARCH64_H_