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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
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#ifndef CPU_AARCH64_ATOMIC_AARCH64_HPP
#define CPU_AARCH64_ATOMIC_AARCH64_HPP

// Atomic stub implementation.
// Default implementations are in atomic_linux_aarch64.S
//
// All stubs pass arguments the same way
// x0: src/dest address
// x1: arg1
// x2: arg2 (optional)
// x3, x8, x9: scratch
typedef uint64_t (*aarch64_atomic_stub_t)(volatile void *ptr, uint64_t arg1, uint64_t arg2);

// Pointers to stubs
extern aarch64_atomic_stub_t aarch64_atomic_fetch_add_4_impl;
extern aarch64_atomic_stub_t aarch64_atomic_fetch_add_8_impl;
extern aarch64_atomic_stub_t aarch64_atomic_fetch_add_4_relaxed_impl;
extern aarch64_atomic_stub_t aarch64_atomic_fetch_add_8_relaxed_impl;
extern aarch64_atomic_stub_t aarch64_atomic_xchg_4_impl;
extern aarch64_atomic_stub_t aarch64_atomic_xchg_8_impl;
extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_1_impl;
extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_4_impl;
extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_8_impl;
extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_1_relaxed_impl;
extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_4_relaxed_impl;
extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_8_relaxed_impl;
extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_4_release_impl;
extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_8_release_impl;
extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_4_seq_cst_impl;
extern aarch64_atomic_stub_t aarch64_atomic_cmpxchg_8_seq_cst_impl;

#endif // CPU_AARCH64_ATOMIC_AARCH64_HPP