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- /* SPDX-License-Identifier: GPL-2.0 */
- /* atomic.h: These still suck, but the I-cache hit rate is higher.
- *
- * Copyright (C) 1996 David S. Miller ([email protected])
- * Copyright (C) 2000 Anton Blanchard ([email protected])
- * Copyright (C) 2007 Kyle McMartin ([email protected])
- *
- * Additions by Keith M Wesolowski ([email protected]) based
- * on asm-parisc/atomic.h Copyright (C) 2000 Philipp Rumpf <[email protected]>.
- */
- #ifndef __ARCH_SPARC_ATOMIC__
- #define __ARCH_SPARC_ATOMIC__
- #include <linux/types.h>
- #include <asm/cmpxchg.h>
- #include <asm/barrier.h>
- #include <asm-generic/atomic64.h>
- int arch_atomic_add_return(int, atomic_t *);
- int arch_atomic_fetch_add(int, atomic_t *);
- int arch_atomic_fetch_and(int, atomic_t *);
- int arch_atomic_fetch_or(int, atomic_t *);
- int arch_atomic_fetch_xor(int, atomic_t *);
- int arch_atomic_cmpxchg(atomic_t *, int, int);
- int arch_atomic_xchg(atomic_t *, int);
- int arch_atomic_fetch_add_unless(atomic_t *, int, int);
- void arch_atomic_set(atomic_t *, int);
- #define arch_atomic_fetch_add_unless arch_atomic_fetch_add_unless
- #define arch_atomic_set_release(v, i) arch_atomic_set((v), (i))
- #define arch_atomic_read(v) READ_ONCE((v)->counter)
- #define arch_atomic_add(i, v) ((void)arch_atomic_add_return( (int)(i), (v)))
- #define arch_atomic_sub(i, v) ((void)arch_atomic_add_return(-(int)(i), (v)))
- #define arch_atomic_and(i, v) ((void)arch_atomic_fetch_and((i), (v)))
- #define arch_atomic_or(i, v) ((void)arch_atomic_fetch_or((i), (v)))
- #define arch_atomic_xor(i, v) ((void)arch_atomic_fetch_xor((i), (v)))
- #define arch_atomic_sub_return(i, v) (arch_atomic_add_return(-(int)(i), (v)))
- #define arch_atomic_fetch_sub(i, v) (arch_atomic_fetch_add (-(int)(i), (v)))
- #endif /* !(__ARCH_SPARC_ATOMIC__) */
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