| /* 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 (davem@davemloft.net) |
| * Copyright (C) 2000 Anton Blanchard (anton@linuxcare.com.au) |
| * Copyright (C) 2007 Kyle McMartin (kyle@parisc-linux.org) |
| * |
| * Additions by Keith M Wesolowski (wesolows@foobazco.org) based |
| * on asm-parisc/atomic.h Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>. |
| */ |
| |
| #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> |
| |
| #define ATOMIC_INIT(i) { (i) } |
| |
| int atomic_add_return(int, atomic_t *); |
| int atomic_fetch_add(int, atomic_t *); |
| int atomic_fetch_and(int, atomic_t *); |
| int atomic_fetch_or(int, atomic_t *); |
| int atomic_fetch_xor(int, atomic_t *); |
| int atomic_cmpxchg(atomic_t *, int, int); |
| int atomic_xchg(atomic_t *, int); |
| int atomic_fetch_add_unless(atomic_t *, int, int); |
| void atomic_set(atomic_t *, int); |
| |
| #define atomic_fetch_add_unless atomic_fetch_add_unless |
| |
| #define atomic_set_release(v, i) atomic_set((v), (i)) |
| |
| #define atomic_read(v) READ_ONCE((v)->counter) |
| |
| #define atomic_add(i, v) ((void)atomic_add_return( (int)(i), (v))) |
| #define atomic_sub(i, v) ((void)atomic_add_return(-(int)(i), (v))) |
| |
| #define atomic_and(i, v) ((void)atomic_fetch_and((i), (v))) |
| #define atomic_or(i, v) ((void)atomic_fetch_or((i), (v))) |
| #define atomic_xor(i, v) ((void)atomic_fetch_xor((i), (v))) |
| |
| #define atomic_sub_return(i, v) (atomic_add_return(-(int)(i), (v))) |
| #define atomic_fetch_sub(i, v) (atomic_fetch_add (-(int)(i), (v))) |
| |
| #endif /* !(__ARCH_SPARC_ATOMIC__) */ |
