arch/arm64/include/asm/atomic.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Based on arch/arm/include/asm/atomic.h
   4  *
   5  * Copyright (C) 1996 Russell King.
   6  * Copyright (C) 2002 Deep Blue Solutions Ltd.
   7  * Copyright (C) 2012 ARM Ltd.
   8  */
   9 #ifndef __ASM_ATOMIC_H
  10 #define __ASM_ATOMIC_H
  11
  12 #include <linux/compiler.h>
  13 #include <linux/types.h>
  14
  15 #include <asm/barrier.h>
  16 #include <asm/lse.h>
  17
  18 #ifdef __KERNEL__
  19
  20 #include <asm/atomic_arch.h>
  21 #include <asm/cmpxchg.h>
  22
  23 #define ATOMIC_INIT(i)  { (i) }
  24
  25 #define arch_atomic_read(v)                     READ_ONCE((v)->counter)
  26 #define arch_atomic_set(v, i)                   WRITE_ONCE(((v)->counter), (i))
  27
  28 #define arch_atomic_add_return_relaxed          arch_atomic_add_return_relaxed
  29 #define arch_atomic_add_return_acquire          arch_atomic_add_return_acquire
  30 #define arch_atomic_add_return_release          arch_atomic_add_return_release
  31 #define arch_atomic_add_return                  arch_atomic_add_return
  32
  33 #define arch_atomic_sub_return_relaxed          arch_atomic_sub_return_relaxed
  34 #define arch_atomic_sub_return_acquire          arch_atomic_sub_return_acquire
  35 #define arch_atomic_sub_return_release          arch_atomic_sub_return_release
  36 #define arch_atomic_sub_return                  arch_atomic_sub_return
  37
  38 #define arch_atomic_fetch_add_relaxed           arch_atomic_fetch_add_relaxed
  39 #define arch_atomic_fetch_add_acquire           arch_atomic_fetch_add_acquire
  40 #define arch_atomic_fetch_add_release           arch_atomic_fetch_add_release
  41 #define arch_atomic_fetch_add                   arch_atomic_fetch_add
  42
  43 #define arch_atomic_fetch_sub_relaxed           arch_atomic_fetch_sub_relaxed
  44 #define arch_atomic_fetch_sub_acquire           arch_atomic_fetch_sub_acquire
  45 #define arch_atomic_fetch_sub_release           arch_atomic_fetch_sub_release
  46 #define arch_atomic_fetch_sub                   arch_atomic_fetch_sub
  47
  48 #define arch_atomic_fetch_and_relaxed           arch_atomic_fetch_and_relaxed
  49 #define arch_atomic_fetch_and_acquire           arch_atomic_fetch_and_acquire
  50 #define arch_atomic_fetch_and_release           arch_atomic_fetch_and_release
  51 #define arch_atomic_fetch_and                   arch_atomic_fetch_and
  52
  53 #define arch_atomic_fetch_andnot_relaxed        arch_atomic_fetch_andnot_relaxed
  54 #define arch_atomic_fetch_andnot_acquire        arch_atomic_fetch_andnot_acquire
  55 #define arch_atomic_fetch_andnot_release        arch_atomic_fetch_andnot_release
  56 #define arch_atomic_fetch_andnot                arch_atomic_fetch_andnot
  57
  58 #define arch_atomic_fetch_or_relaxed            arch_atomic_fetch_or_relaxed
  59 #define arch_atomic_fetch_or_acquire            arch_atomic_fetch_or_acquire
  60 #define arch_atomic_fetch_or_release            arch_atomic_fetch_or_release
  61 #define arch_atomic_fetch_or                    arch_atomic_fetch_or
  62
  63 #define arch_atomic_fetch_xor_relaxed           arch_atomic_fetch_xor_relaxed
  64 #define arch_atomic_fetch_xor_acquire           arch_atomic_fetch_xor_acquire
  65 #define arch_atomic_fetch_xor_release           arch_atomic_fetch_xor_release
  66 #define arch_atomic_fetch_xor                   arch_atomic_fetch_xor
  67
  68 #define arch_atomic_xchg_relaxed(v, new) \
  69         arch_xchg_relaxed(&((v)->counter), (new))
  70 #define arch_atomic_xchg_acquire(v, new) \
  71         arch_xchg_acquire(&((v)->counter), (new))
  72 #define arch_atomic_xchg_release(v, new) \
  73         arch_xchg_release(&((v)->counter), (new))
  74 #define arch_atomic_xchg(v, new) \
  75         arch_xchg(&((v)->counter), (new))
  76
  77 #define arch_atomic_cmpxchg_relaxed(v, old, new) \
  78         arch_cmpxchg_relaxed(&((v)->counter), (old), (new))
  79 #define arch_atomic_cmpxchg_acquire(v, old, new) \
  80         arch_cmpxchg_acquire(&((v)->counter), (old), (new))
  81 #define arch_atomic_cmpxchg_release(v, old, new) \
  82         arch_cmpxchg_release(&((v)->counter), (old), (new))
  83 #define arch_atomic_cmpxchg(v, old, new) \
  84         arch_cmpxchg(&((v)->counter), (old), (new))
  85
  86 #define arch_atomic_andnot                      arch_atomic_andnot
  87
  88 /*
  89  * 64-bit arch_atomic operations.
  90  */
  91 #define ATOMIC64_INIT                           ATOMIC_INIT
  92 #define arch_atomic64_read                      arch_atomic_read
  93 #define arch_atomic64_set                       arch_atomic_set
  94
  95 #define arch_atomic64_add_return_relaxed        arch_atomic64_add_return_relaxed
  96 #define arch_atomic64_add_return_acquire        arch_atomic64_add_return_acquire
  97 #define arch_atomic64_add_return_release        arch_atomic64_add_return_release
  98 #define arch_atomic64_add_return                arch_atomic64_add_return
  99
 100 #define arch_atomic64_sub_return_relaxed        arch_atomic64_sub_return_relaxed
 101 #define arch_atomic64_sub_return_acquire        arch_atomic64_sub_return_acquire
 102 #define arch_atomic64_sub_return_release        arch_atomic64_sub_return_release
 103 #define arch_atomic64_sub_return                arch_atomic64_sub_return
 104
 105 #define arch_atomic64_fetch_add_relaxed         arch_atomic64_fetch_add_relaxed
 106 #define arch_atomic64_fetch_add_acquire         arch_atomic64_fetch_add_acquire
 107 #define arch_atomic64_fetch_add_release         arch_atomic64_fetch_add_release
 108 #define arch_atomic64_fetch_add                 arch_atomic64_fetch_add
 109
 110 #define arch_atomic64_fetch_sub_relaxed         arch_atomic64_fetch_sub_relaxed
 111 #define arch_atomic64_fetch_sub_acquire         arch_atomic64_fetch_sub_acquire
 112 #define arch_atomic64_fetch_sub_release         arch_atomic64_fetch_sub_release
 113 #define arch_atomic64_fetch_sub                 arch_atomic64_fetch_sub
 114
 115 #define arch_atomic64_fetch_and_relaxed         arch_atomic64_fetch_and_relaxed
 116 #define arch_atomic64_fetch_and_acquire         arch_atomic64_fetch_and_acquire
 117 #define arch_atomic64_fetch_and_release         arch_atomic64_fetch_and_release
 118 #define arch_atomic64_fetch_and                 arch_atomic64_fetch_and
 119
 120 #define arch_atomic64_fetch_andnot_relaxed      arch_atomic64_fetch_andnot_relaxed
 121 #define arch_atomic64_fetch_andnot_acquire      arch_atomic64_fetch_andnot_acquire
 122 #define arch_atomic64_fetch_andnot_release      arch_atomic64_fetch_andnot_release
 123 #define arch_atomic64_fetch_andnot              arch_atomic64_fetch_andnot
 124
 125 #define arch_atomic64_fetch_or_relaxed          arch_atomic64_fetch_or_relaxed
 126 #define arch_atomic64_fetch_or_acquire          arch_atomic64_fetch_or_acquire
 127 #define arch_atomic64_fetch_or_release          arch_atomic64_fetch_or_release
 128 #define arch_atomic64_fetch_or                  arch_atomic64_fetch_or
 129
 130 #define arch_atomic64_fetch_xor_relaxed         arch_atomic64_fetch_xor_relaxed
 131 #define arch_atomic64_fetch_xor_acquire         arch_atomic64_fetch_xor_acquire
 132 #define arch_atomic64_fetch_xor_release         arch_atomic64_fetch_xor_release
 133 #define arch_atomic64_fetch_xor                 arch_atomic64_fetch_xor
 134
 135 #define arch_atomic64_xchg_relaxed              arch_atomic_xchg_relaxed
 136 #define arch_atomic64_xchg_acquire              arch_atomic_xchg_acquire
 137 #define arch_atomic64_xchg_release              arch_atomic_xchg_release
 138 #define arch_atomic64_xchg                      arch_atomic_xchg
 139
 140 #define arch_atomic64_cmpxchg_relaxed           arch_atomic_cmpxchg_relaxed
 141 #define arch_atomic64_cmpxchg_acquire           arch_atomic_cmpxchg_acquire
 142 #define arch_atomic64_cmpxchg_release           arch_atomic_cmpxchg_release
 143 #define arch_atomic64_cmpxchg                   arch_atomic_cmpxchg
 144
 145 #define arch_atomic64_andnot                    arch_atomic64_andnot
 146
 147 #define arch_atomic64_dec_if_positive           arch_atomic64_dec_if_positive
 148
 149 #include <asm-generic/atomic-instrumented.h>
 150
 151 #endif
 152 #endif