162 lines
6.6 KiB
C
162 lines
6.6 KiB
C
/* 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/lse.h>
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#ifdef __KERNEL__
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#define __ARM64_IN_ATOMIC_IMPL
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#if defined(CONFIG_ARM64_LSE_ATOMICS) && defined(CONFIG_AS_LSE)
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#include <asm/atomic_lse.h>
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#else
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#include <asm/atomic_ll_sc.h>
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#endif
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#undef __ARM64_IN_ATOMIC_IMPL
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#include <asm/cmpxchg.h>
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#define ATOMIC_INIT(i) { (i) }
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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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#include <asm-generic/atomic-instrumented.h>
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#endif
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#endif
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