| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Based on arch/arm/include/asm/atomic.h |
| * |
| * Copyright (C) 1996 Russell King. |
| * Copyright (C) 2002 Deep Blue Solutions Ltd. |
| * Copyright (C) 2012 ARM Ltd. |
| */ |
| #ifndef __ASM_ATOMIC_H |
| #define __ASM_ATOMIC_H |
| |
| #include <linux/compiler.h> |
| #include <linux/types.h> |
| |
| #include <asm/barrier.h> |
| #include <asm/cmpxchg.h> |
| #include <asm/lse.h> |
| |
| #define ATOMIC_OP(op) \ |
| static inline void arch_##op(int i, atomic_t *v) \ |
| { \ |
| __lse_ll_sc_body(op, i, v); \ |
| } |
| |
| ATOMIC_OP(atomic_andnot) |
| ATOMIC_OP(atomic_or) |
| ATOMIC_OP(atomic_xor) |
| ATOMIC_OP(atomic_add) |
| ATOMIC_OP(atomic_and) |
| ATOMIC_OP(atomic_sub) |
| |
| #undef ATOMIC_OP |
| |
| #define ATOMIC_FETCH_OP(name, op) \ |
| static inline int arch_##op##name(int i, atomic_t *v) \ |
| { \ |
| return __lse_ll_sc_body(op##name, i, v); \ |
| } |
| |
| #define ATOMIC_FETCH_OPS(op) \ |
| ATOMIC_FETCH_OP(_relaxed, op) \ |
| ATOMIC_FETCH_OP(_acquire, op) \ |
| ATOMIC_FETCH_OP(_release, op) \ |
| ATOMIC_FETCH_OP( , op) |
| |
| ATOMIC_FETCH_OPS(atomic_fetch_andnot) |
| ATOMIC_FETCH_OPS(atomic_fetch_or) |
| ATOMIC_FETCH_OPS(atomic_fetch_xor) |
| ATOMIC_FETCH_OPS(atomic_fetch_add) |
| ATOMIC_FETCH_OPS(atomic_fetch_and) |
| ATOMIC_FETCH_OPS(atomic_fetch_sub) |
| ATOMIC_FETCH_OPS(atomic_add_return) |
| ATOMIC_FETCH_OPS(atomic_sub_return) |
| |
| #undef ATOMIC_FETCH_OP |
| #undef ATOMIC_FETCH_OPS |
| |
| #define ATOMIC64_OP(op) \ |
| static inline void arch_##op(long i, atomic64_t *v) \ |
| { \ |
| __lse_ll_sc_body(op, i, v); \ |
| } |
| |
| ATOMIC64_OP(atomic64_andnot) |
| ATOMIC64_OP(atomic64_or) |
| ATOMIC64_OP(atomic64_xor) |
| ATOMIC64_OP(atomic64_add) |
| ATOMIC64_OP(atomic64_and) |
| ATOMIC64_OP(atomic64_sub) |
| |
| #undef ATOMIC64_OP |
| |
| #define ATOMIC64_FETCH_OP(name, op) \ |
| static inline long arch_##op##name(long i, atomic64_t *v) \ |
| { \ |
| return __lse_ll_sc_body(op##name, i, v); \ |
| } |
| |
| #define ATOMIC64_FETCH_OPS(op) \ |
| ATOMIC64_FETCH_OP(_relaxed, op) \ |
| ATOMIC64_FETCH_OP(_acquire, op) \ |
| ATOMIC64_FETCH_OP(_release, op) \ |
| ATOMIC64_FETCH_OP( , op) |
| |
| ATOMIC64_FETCH_OPS(atomic64_fetch_andnot) |
| ATOMIC64_FETCH_OPS(atomic64_fetch_or) |
| ATOMIC64_FETCH_OPS(atomic64_fetch_xor) |
| ATOMIC64_FETCH_OPS(atomic64_fetch_add) |
| ATOMIC64_FETCH_OPS(atomic64_fetch_and) |
| ATOMIC64_FETCH_OPS(atomic64_fetch_sub) |
| ATOMIC64_FETCH_OPS(atomic64_add_return) |
| ATOMIC64_FETCH_OPS(atomic64_sub_return) |
| |
| #undef ATOMIC64_FETCH_OP |
| #undef ATOMIC64_FETCH_OPS |
| |
| static inline long arch_atomic64_dec_if_positive(atomic64_t *v) |
| { |
| return __lse_ll_sc_body(atomic64_dec_if_positive, v); |
| } |
| |
| #define ATOMIC_INIT(i) { (i) } |
| |
| #define arch_atomic_read(v) __READ_ONCE((v)->counter) |
| #define arch_atomic_set(v, i) __WRITE_ONCE(((v)->counter), (i)) |
| |
| #define arch_atomic_add_return_relaxed arch_atomic_add_return_relaxed |
| #define arch_atomic_add_return_acquire arch_atomic_add_return_acquire |
| #define arch_atomic_add_return_release arch_atomic_add_return_release |
| #define arch_atomic_add_return arch_atomic_add_return |
| |
| #define arch_atomic_sub_return_relaxed arch_atomic_sub_return_relaxed |
| #define arch_atomic_sub_return_acquire arch_atomic_sub_return_acquire |
| #define arch_atomic_sub_return_release arch_atomic_sub_return_release |
| #define arch_atomic_sub_return arch_atomic_sub_return |
| |
| #define arch_atomic_fetch_add_relaxed arch_atomic_fetch_add_relaxed |
| #define arch_atomic_fetch_add_acquire arch_atomic_fetch_add_acquire |
| #define arch_atomic_fetch_add_release arch_atomic_fetch_add_release |
| #define arch_atomic_fetch_add arch_atomic_fetch_add |
| |
| #define arch_atomic_fetch_sub_relaxed arch_atomic_fetch_sub_relaxed |
| #define arch_atomic_fetch_sub_acquire arch_atomic_fetch_sub_acquire |
| #define arch_atomic_fetch_sub_release arch_atomic_fetch_sub_release |
| #define arch_atomic_fetch_sub arch_atomic_fetch_sub |
| |
| #define arch_atomic_fetch_and_relaxed arch_atomic_fetch_and_relaxed |
| #define arch_atomic_fetch_and_acquire arch_atomic_fetch_and_acquire |
| #define arch_atomic_fetch_and_release arch_atomic_fetch_and_release |
| #define arch_atomic_fetch_and arch_atomic_fetch_and |
| |
| #define arch_atomic_fetch_andnot_relaxed arch_atomic_fetch_andnot_relaxed |
| #define arch_atomic_fetch_andnot_acquire arch_atomic_fetch_andnot_acquire |
| #define arch_atomic_fetch_andnot_release arch_atomic_fetch_andnot_release |
| #define arch_atomic_fetch_andnot arch_atomic_fetch_andnot |
| |
| #define arch_atomic_fetch_or_relaxed arch_atomic_fetch_or_relaxed |
| #define arch_atomic_fetch_or_acquire arch_atomic_fetch_or_acquire |
| #define arch_atomic_fetch_or_release arch_atomic_fetch_or_release |
| #define arch_atomic_fetch_or arch_atomic_fetch_or |
| |
| #define arch_atomic_fetch_xor_relaxed arch_atomic_fetch_xor_relaxed |
| #define arch_atomic_fetch_xor_acquire arch_atomic_fetch_xor_acquire |
| #define arch_atomic_fetch_xor_release arch_atomic_fetch_xor_release |
| #define arch_atomic_fetch_xor arch_atomic_fetch_xor |
| |
| #define arch_atomic_xchg_relaxed(v, new) \ |
| arch_xchg_relaxed(&((v)->counter), (new)) |
| #define arch_atomic_xchg_acquire(v, new) \ |
| arch_xchg_acquire(&((v)->counter), (new)) |
| #define arch_atomic_xchg_release(v, new) \ |
| arch_xchg_release(&((v)->counter), (new)) |
| #define arch_atomic_xchg(v, new) \ |
| arch_xchg(&((v)->counter), (new)) |
| |
| #define arch_atomic_cmpxchg_relaxed(v, old, new) \ |
| arch_cmpxchg_relaxed(&((v)->counter), (old), (new)) |
| #define arch_atomic_cmpxchg_acquire(v, old, new) \ |
| arch_cmpxchg_acquire(&((v)->counter), (old), (new)) |
| #define arch_atomic_cmpxchg_release(v, old, new) \ |
| arch_cmpxchg_release(&((v)->counter), (old), (new)) |
| #define arch_atomic_cmpxchg(v, old, new) \ |
| arch_cmpxchg(&((v)->counter), (old), (new)) |
| |
| #define arch_atomic_andnot arch_atomic_andnot |
| |
| /* |
| * 64-bit arch_atomic operations. |
| */ |
| #define ATOMIC64_INIT ATOMIC_INIT |
| #define arch_atomic64_read arch_atomic_read |
| #define arch_atomic64_set arch_atomic_set |
| |
| #define arch_atomic64_add_return_relaxed arch_atomic64_add_return_relaxed |
| #define arch_atomic64_add_return_acquire arch_atomic64_add_return_acquire |
| #define arch_atomic64_add_return_release arch_atomic64_add_return_release |
| #define arch_atomic64_add_return arch_atomic64_add_return |
| |
| #define arch_atomic64_sub_return_relaxed arch_atomic64_sub_return_relaxed |
| #define arch_atomic64_sub_return_acquire arch_atomic64_sub_return_acquire |
| #define arch_atomic64_sub_return_release arch_atomic64_sub_return_release |
| #define arch_atomic64_sub_return arch_atomic64_sub_return |
| |
| #define arch_atomic64_fetch_add_relaxed arch_atomic64_fetch_add_relaxed |
| #define arch_atomic64_fetch_add_acquire arch_atomic64_fetch_add_acquire |
| #define arch_atomic64_fetch_add_release arch_atomic64_fetch_add_release |
| #define arch_atomic64_fetch_add arch_atomic64_fetch_add |
| |
| #define arch_atomic64_fetch_sub_relaxed arch_atomic64_fetch_sub_relaxed |
| #define arch_atomic64_fetch_sub_acquire arch_atomic64_fetch_sub_acquire |
| #define arch_atomic64_fetch_sub_release arch_atomic64_fetch_sub_release |
| #define arch_atomic64_fetch_sub arch_atomic64_fetch_sub |
| |
| #define arch_atomic64_fetch_and_relaxed arch_atomic64_fetch_and_relaxed |
| #define arch_atomic64_fetch_and_acquire arch_atomic64_fetch_and_acquire |
| #define arch_atomic64_fetch_and_release arch_atomic64_fetch_and_release |
| #define arch_atomic64_fetch_and arch_atomic64_fetch_and |
| |
| #define arch_atomic64_fetch_andnot_relaxed arch_atomic64_fetch_andnot_relaxed |
| #define arch_atomic64_fetch_andnot_acquire arch_atomic64_fetch_andnot_acquire |
| #define arch_atomic64_fetch_andnot_release arch_atomic64_fetch_andnot_release |
| #define arch_atomic64_fetch_andnot arch_atomic64_fetch_andnot |
| |
| #define arch_atomic64_fetch_or_relaxed arch_atomic64_fetch_or_relaxed |
| #define arch_atomic64_fetch_or_acquire arch_atomic64_fetch_or_acquire |
| #define arch_atomic64_fetch_or_release arch_atomic64_fetch_or_release |
| #define arch_atomic64_fetch_or arch_atomic64_fetch_or |
| |
| #define arch_atomic64_fetch_xor_relaxed arch_atomic64_fetch_xor_relaxed |
| #define arch_atomic64_fetch_xor_acquire arch_atomic64_fetch_xor_acquire |
| #define arch_atomic64_fetch_xor_release arch_atomic64_fetch_xor_release |
| #define arch_atomic64_fetch_xor arch_atomic64_fetch_xor |
| |
| #define arch_atomic64_xchg_relaxed arch_atomic_xchg_relaxed |
| #define arch_atomic64_xchg_acquire arch_atomic_xchg_acquire |
| #define arch_atomic64_xchg_release arch_atomic_xchg_release |
| #define arch_atomic64_xchg arch_atomic_xchg |
| |
| #define arch_atomic64_cmpxchg_relaxed arch_atomic_cmpxchg_relaxed |
| #define arch_atomic64_cmpxchg_acquire arch_atomic_cmpxchg_acquire |
| #define arch_atomic64_cmpxchg_release arch_atomic_cmpxchg_release |
| #define arch_atomic64_cmpxchg arch_atomic_cmpxchg |
| |
| #define arch_atomic64_andnot arch_atomic64_andnot |
| |
| #define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive |
| |
| #define ARCH_ATOMIC |
| |
| #endif /* __ASM_ATOMIC_H */ |
