mirror of
https://git.eden-emu.dev/eden-emu/eden.git
synced 2025-07-20 14:05:45 +00:00
112 lines
4.8 KiB
C++
112 lines
4.8 KiB
C++
// SPDX-FileCopyrightText: Copyright (c) 2023 merryhime <https://mary.rs>
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
#pragma once
|
|
|
|
#include <cstddef>
|
|
#include <optional>
|
|
|
|
#include <sys/sysctl.h>
|
|
|
|
#include "oaknut/feature_detection/cpu_feature.hpp"
|
|
#include "oaknut/feature_detection/id_registers.hpp"
|
|
|
|
namespace oaknut {
|
|
|
|
// Ref: https://developer.apple.com/documentation/kernel/1387446-sysctlbyname/determining_instruction_set_characteristics
|
|
|
|
namespace detail {
|
|
|
|
inline bool detect_feature(const char* const sysctl_name)
|
|
{
|
|
int result = 0;
|
|
std::size_t result_size = sizeof(result);
|
|
if (::sysctlbyname(sysctl_name, &result, &result_size, nullptr, 0) == 0) {
|
|
return result != 0;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
} // namespace detail
|
|
|
|
inline CpuFeatures detect_features_via_sysctlbyname()
|
|
{
|
|
CpuFeatures result;
|
|
|
|
if (detail::detect_feature("hw.optional.AdvSIMD") || detail::detect_feature("hw.optional.neon"))
|
|
result |= CpuFeatures{CpuFeature::ASIMD};
|
|
if (detail::detect_feature("hw.optional.floatingpoint"))
|
|
result |= CpuFeatures{CpuFeature::FP};
|
|
if (detail::detect_feature("hw.optional.AdvSIMD_HPFPCvt") || detail::detect_feature("hw.optional.neon_hpfp"))
|
|
result |= CpuFeatures{CpuFeature::FP16Conv};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_BF16"))
|
|
result |= CpuFeatures{CpuFeature::BF16};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_DotProd"))
|
|
result |= CpuFeatures{CpuFeature::DotProd};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_FCMA") || detail::detect_feature("hw.optional.armv8_3_compnum"))
|
|
result |= CpuFeatures{CpuFeature::FCMA};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_FHM") || detail::detect_feature("hw.optional.armv8_2_fhm"))
|
|
result |= CpuFeatures{CpuFeature::FHM};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_FP16") || detail::detect_feature("hw.optional.neon_fp16"))
|
|
result |= CpuFeatures{CpuFeature::FP16};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_FRINTTS"))
|
|
result |= CpuFeatures{CpuFeature::FRINTTS};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_I8MM"))
|
|
result |= CpuFeatures{CpuFeature::I8MM};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_JSCVT"))
|
|
result |= CpuFeatures{CpuFeature::JSCVT};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_RDM"))
|
|
result |= CpuFeatures{CpuFeature::RDM};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_FlagM"))
|
|
result |= CpuFeatures{CpuFeature::FlagM};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_FlagM2"))
|
|
result |= CpuFeatures{CpuFeature::FlagM2};
|
|
if (detail::detect_feature("hw.optional.armv8_crc32"))
|
|
result |= CpuFeatures{CpuFeature::CRC32};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_LRCPC"))
|
|
result |= CpuFeatures{CpuFeature::LRCPC};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_LRCPC2"))
|
|
result |= CpuFeatures{CpuFeature::LRCPC2};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_LSE") || detail::detect_feature("hw.optional.armv8_1_atomics"))
|
|
result |= CpuFeatures{CpuFeature::LSE};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_LSE2"))
|
|
result |= CpuFeatures{CpuFeature::LSE2};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_AES"))
|
|
result |= CpuFeatures{CpuFeature::AES};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_PMULL"))
|
|
result |= CpuFeatures{CpuFeature::PMULL};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_SHA1"))
|
|
result |= CpuFeatures{CpuFeature::SHA1};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_SHA256"))
|
|
result |= CpuFeatures{CpuFeature::SHA256};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_SHA512") || detail::detect_feature("hw.optional.armv8_2_sha512"))
|
|
result |= CpuFeatures{CpuFeature::SHA512};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_SHA3") || detail::detect_feature("hw.optional.armv8_2_sha3"))
|
|
result |= CpuFeatures{CpuFeature::SHA3};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_BTI"))
|
|
result |= CpuFeatures{CpuFeature::BTI};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_DPB"))
|
|
result |= CpuFeatures{CpuFeature::DPB};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_DPB2"))
|
|
result |= CpuFeatures{CpuFeature::DPB2};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_ECV"))
|
|
result |= CpuFeatures{CpuFeature::ECV};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_SB"))
|
|
result |= CpuFeatures{CpuFeature::SB};
|
|
if (detail::detect_feature("hw.optional.arm.FEAT_SSBS"))
|
|
result |= CpuFeatures{CpuFeature::SSBS};
|
|
|
|
return result;
|
|
}
|
|
|
|
inline CpuFeatures detect_features()
|
|
{
|
|
return detect_features_via_sysctlbyname();
|
|
}
|
|
|
|
inline std::optional<id::IdRegisters> read_id_registers()
|
|
{
|
|
return std::nullopt;
|
|
}
|
|
|
|
} // namespace oaknut
|