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- /* Atomic operations. Sparc version.
- Copyright (C) 2019-2026 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <https://www.gnu.org/licenses/>. */
- #ifndef _SPARC_ATOMIC_MACHINE_H
- #define _SPARC_ATOMIC_MACHINE_H
- #ifdef __sparc_v9__
- # define atomic_full_barrier() \
- __asm __volatile ("membar #LoadLoad | #LoadStore" \
- " | #StoreLoad | #StoreStore" : : : "memory")
- # define atomic_read_barrier() \
- __asm __volatile ("membar #LoadLoad | #LoadStore" : : : "memory")
- # define atomic_write_barrier() \
- __asm __volatile ("membar #LoadStore | #StoreStore" : : : "memory")
- extern void __cpu_relax (void);
- # define atomic_spin_nop() __cpu_relax ()
- #endif
- #endif
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