projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 20effc67 TL |
1 | /* |
| 2 | * Distributed under the Boost Software License, Version 1.0. | |
| 3 | * (See accompanying file LICENSE_1_0.txt or copy at | |
| 4 | * http://www.boost.org/LICENSE_1_0.txt) | |
| 5 | * | |
| 6 | * Copyright (c) 2020 Andrey Semashev | |
| 7 | */ | |
| 8 | /*! | |
| 9 | * \file atomic/detail/caps_arch_gcc_aarch64.hpp | |
| 10 | * | |
| 11 | * This header defines feature capabilities macros | |
| 12 | */ | |
| 13 | ||
| 14 | #ifndef BOOST_ATOMIC_DETAIL_CAPS_ARCH_GCC_AARCH64_HPP_INCLUDED_ | |
| 15 | #define BOOST_ATOMIC_DETAIL_CAPS_ARCH_GCC_AARCH64_HPP_INCLUDED_ | |
| 16 | ||
| 17 | #include <boost/atomic/detail/config.hpp> | |
| 18 | ||
| 19 | #ifdef BOOST_HAS_PRAGMA_ONCE | |
| 20 | #pragma once | |
| 21 | #endif | |
| 22 | ||
| 23 | #if defined(__AARCH64EL__) || \ | |
| 24 | (defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) || \ | |
| 25 | (defined(__LITTLE_ENDIAN__) && !defined(__BIG_ENDIAN__)) || \ | |
| 26 | defined(BOOST_WINDOWS) | |
| 27 | #define BOOST_ATOMIC_DETAIL_AARCH64_LITTLE_ENDIAN | |
| 28 | #elif defined(__AARCH64EB__) || \ | |
| 29 | defined(__ARM_BIG_ENDIAN) || \ | |
| 30 | (defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) || \ | |
| 31 | (defined(__BIG_ENDIAN__) && !defined(__LITTLE_ENDIAN__)) | |
| 32 | #define BOOST_ATOMIC_DETAIL_AARCH64_BIG_ENDIAN | |
| 33 | #else | |
| 34 | #error "Boost.Atomic: Failed to determine AArch64 endianness, the target platform is not supported. Please, report to the developers (patches are welcome)." | |
| 35 | #endif | |
| 36 | ||
| 37 | #if defined(__ARM_FEATURE_ATOMICS) | |
| 38 | // ARMv8.1 added Large System Extensions, which includes cas, swp, and a number of other read-modify-write instructions | |
| 39 | #define BOOST_ATOMIC_DETAIL_AARCH64_HAS_LSE | |
| 40 | #endif | |
| 41 | ||
| 42 | #if defined(__ARM_FEATURE_COMPLEX) | |
| 43 | // ARMv8.3 added Release Consistency processor consistent (RCpc) memory model, which includes ldapr and similar instructions. | |
| 44 | // Unfortunately, there seems to be no dedicated __ARM_FEATURE macro for this, so we use __ARM_FEATURE_COMPLEX, which is also defined starting ARMv8.3. | |
| 45 | #define BOOST_ATOMIC_DETAIL_AARCH64_HAS_RCPC | |
| 46 | #endif | |
| 47 | ||
| 48 | #define BOOST_ATOMIC_INT8_LOCK_FREE 2 | |
| 49 | #define BOOST_ATOMIC_INT16_LOCK_FREE 2 | |
| 50 | #define BOOST_ATOMIC_INT32_LOCK_FREE 2 | |
| 51 | #define BOOST_ATOMIC_INT64_LOCK_FREE 2 | |
| 52 | #define BOOST_ATOMIC_INT128_LOCK_FREE 2 | |
| 53 | #define BOOST_ATOMIC_POINTER_LOCK_FREE 2 | |
| 54 | ||
| 55 | #define BOOST_ATOMIC_THREAD_FENCE 2 | |
| 56 | #define BOOST_ATOMIC_SIGNAL_FENCE 2 | |
| 57 | ||
| 58 | #endif // BOOST_ATOMIC_DETAIL_CAPS_ARCH_GCC_AARCH64_HPP_INCLUDED_ |