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/*
* (C) 2025 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include <botan/internal/cpuid.h>
#include <botan/assert.h>
#include <botan/internal/target_info.h>
#if defined(BOTAN_HAS_OS_UTILS)
#include <botan/internal/os_utils.h>
#endif
namespace Botan {
uint32_t CPUID::CPUID_Data::detect_cpu_features(uint32_t allowed) {
uint32_t feat = 0;
#if defined(BOTAN_HAS_OS_UTILS)
if(auto auxval = OS::get_auxval_hwcap()) {
enum class LoongArch64_hwcap_bit : uint64_t {
LSX_bit = (1 << 4),
LASX_bit = (1 << 5),
CRYPTO_bit = (1 << 8),
};
const auto hwcap = auxval->first;
feat |= if_set(hwcap, LoongArch64_hwcap_bit::LSX_bit, CPUFeature::Bit::LSX, allowed);
feat |= if_set(hwcap, LoongArch64_hwcap_bit::LASX_bit, CPUFeature::Bit::LASX, allowed);
feat |= if_set(hwcap, LoongArch64_hwcap_bit::CRYPTO_bit, CPUFeature::Bit::CRYPTO, allowed);
}
#endif
return feat;
}
} // namespace Botan