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/* 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 __always_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 __always_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 __always_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 __always_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 __always_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 #include <asm-generic/atomic-instrumented.h> #endif /* __ASM_ATOMIC_H */