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