kernel/Kconfig.locks

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 #
   3 # The ARCH_INLINE foo is necessary because select ignores "depends on"
   4 #
   5 config ARCH_INLINE_SPIN_TRYLOCK
   6         bool
   7
   8 config ARCH_INLINE_SPIN_TRYLOCK_BH
   9         bool
  10
  11 config ARCH_INLINE_SPIN_LOCK
  12         bool
  13
  14 config ARCH_INLINE_SPIN_LOCK_BH
  15         bool
  16
  17 config ARCH_INLINE_SPIN_LOCK_IRQ
  18         bool
  19
  20 config ARCH_INLINE_SPIN_LOCK_IRQSAVE
  21         bool
  22
  23 config ARCH_INLINE_SPIN_UNLOCK
  24         bool
  25
  26 config ARCH_INLINE_SPIN_UNLOCK_BH
  27         bool
  28
  29 config ARCH_INLINE_SPIN_UNLOCK_IRQ
  30         bool
  31
  32 config ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
  33         bool
  34
  35
  36 config ARCH_INLINE_READ_TRYLOCK
  37         bool
  38
  39 config ARCH_INLINE_READ_LOCK
  40         bool
  41
  42 config ARCH_INLINE_READ_LOCK_BH
  43         bool
  44
  45 config ARCH_INLINE_READ_LOCK_IRQ
  46         bool
  47
  48 config ARCH_INLINE_READ_LOCK_IRQSAVE
  49         bool
  50
  51 config ARCH_INLINE_READ_UNLOCK
  52         bool
  53
  54 config ARCH_INLINE_READ_UNLOCK_BH
  55         bool
  56
  57 config ARCH_INLINE_READ_UNLOCK_IRQ
  58         bool
  59
  60 config ARCH_INLINE_READ_UNLOCK_IRQRESTORE
  61         bool
  62
  63
  64 config ARCH_INLINE_WRITE_TRYLOCK
  65         bool
  66
  67 config ARCH_INLINE_WRITE_LOCK
  68         bool
  69
  70 config ARCH_INLINE_WRITE_LOCK_BH
  71         bool
  72
  73 config ARCH_INLINE_WRITE_LOCK_IRQ
  74         bool
  75
  76 config ARCH_INLINE_WRITE_LOCK_IRQSAVE
  77         bool
  78
  79 config ARCH_INLINE_WRITE_UNLOCK
  80         bool
  81
  82 config ARCH_INLINE_WRITE_UNLOCK_BH
  83         bool
  84
  85 config ARCH_INLINE_WRITE_UNLOCK_IRQ
  86         bool
  87
  88 config ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
  89         bool
  90
  91 config UNINLINE_SPIN_UNLOCK
  92         bool
  93
  94 #
  95 # lock_* functions are inlined when:
  96 #   - DEBUG_SPINLOCK=n and GENERIC_LOCKBREAK=n and ARCH_INLINE_*LOCK=y
  97 #
  98 # trylock_* functions are inlined when:
  99 #   - DEBUG_SPINLOCK=n and ARCH_INLINE_*LOCK=y
 100 #
 101 # unlock and unlock_irq functions are inlined when:
 102 #   - DEBUG_SPINLOCK=n and ARCH_INLINE_*LOCK=y
 103 #  or
 104 #   - DEBUG_SPINLOCK=n and PREEMPTION=n
 105 #
 106 # unlock_bh and unlock_irqrestore functions are inlined when:
 107 #   - DEBUG_SPINLOCK=n and ARCH_INLINE_*LOCK=y
 108 #
 109
 110 if !DEBUG_SPINLOCK
 111
 112 config INLINE_SPIN_TRYLOCK
 113         def_bool y
 114         depends on ARCH_INLINE_SPIN_TRYLOCK
 115
 116 config INLINE_SPIN_TRYLOCK_BH
 117         def_bool y
 118         depends on ARCH_INLINE_SPIN_TRYLOCK_BH
 119
 120 config INLINE_SPIN_LOCK
 121         def_bool y
 122         depends on !GENERIC_LOCKBREAK && ARCH_INLINE_SPIN_LOCK
 123
 124 config INLINE_SPIN_LOCK_BH
 125         def_bool y
 126         depends on !GENERIC_LOCKBREAK && ARCH_INLINE_SPIN_LOCK_BH
 127
 128 config INLINE_SPIN_LOCK_IRQ
 129         def_bool y
 130         depends on !GENERIC_LOCKBREAK && ARCH_INLINE_SPIN_LOCK_IRQ
 131
 132 config INLINE_SPIN_LOCK_IRQSAVE
 133         def_bool y
 134         depends on !GENERIC_LOCKBREAK && ARCH_INLINE_SPIN_LOCK_IRQSAVE
 135
 136 config INLINE_SPIN_UNLOCK_BH
 137         def_bool y
 138         depends on ARCH_INLINE_SPIN_UNLOCK_BH
 139
 140 config INLINE_SPIN_UNLOCK_IRQ
 141         def_bool y
 142         depends on !PREEMPTION || ARCH_INLINE_SPIN_UNLOCK_IRQ
 143
 144 config INLINE_SPIN_UNLOCK_IRQRESTORE
 145         def_bool y
 146         depends on ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE
 147
 148
 149 config INLINE_READ_TRYLOCK
 150         def_bool y
 151         depends on ARCH_INLINE_READ_TRYLOCK
 152
 153 config INLINE_READ_LOCK
 154         def_bool y
 155         depends on !GENERIC_LOCKBREAK && ARCH_INLINE_READ_LOCK
 156
 157 config INLINE_READ_LOCK_BH
 158         def_bool y
 159         depends on !GENERIC_LOCKBREAK && ARCH_INLINE_READ_LOCK_BH
 160
 161 config INLINE_READ_LOCK_IRQ
 162         def_bool y
 163         depends on !GENERIC_LOCKBREAK && ARCH_INLINE_READ_LOCK_IRQ
 164
 165 config INLINE_READ_LOCK_IRQSAVE
 166         def_bool y
 167         depends on !GENERIC_LOCKBREAK && ARCH_INLINE_READ_LOCK_IRQSAVE
 168
 169 config INLINE_READ_UNLOCK
 170         def_bool y
 171         depends on !PREEMPTION || ARCH_INLINE_READ_UNLOCK
 172
 173 config INLINE_READ_UNLOCK_BH
 174         def_bool y
 175         depends on ARCH_INLINE_READ_UNLOCK_BH
 176
 177 config INLINE_READ_UNLOCK_IRQ
 178         def_bool y
 179         depends on !PREEMPTION || ARCH_INLINE_READ_UNLOCK_IRQ
 180
 181 config INLINE_READ_UNLOCK_IRQRESTORE
 182         def_bool y
 183         depends on ARCH_INLINE_READ_UNLOCK_IRQRESTORE
 184
 185
 186 config INLINE_WRITE_TRYLOCK
 187         def_bool y
 188         depends on ARCH_INLINE_WRITE_TRYLOCK
 189
 190 config INLINE_WRITE_LOCK
 191         def_bool y
 192         depends on !GENERIC_LOCKBREAK && ARCH_INLINE_WRITE_LOCK
 193
 194 config INLINE_WRITE_LOCK_BH
 195         def_bool y
 196         depends on !GENERIC_LOCKBREAK && ARCH_INLINE_WRITE_LOCK_BH
 197
 198 config INLINE_WRITE_LOCK_IRQ
 199         def_bool y
 200         depends on !GENERIC_LOCKBREAK && ARCH_INLINE_WRITE_LOCK_IRQ
 201
 202 config INLINE_WRITE_LOCK_IRQSAVE
 203         def_bool y
 204         depends on !GENERIC_LOCKBREAK && ARCH_INLINE_WRITE_LOCK_IRQSAVE
 205
 206 config INLINE_WRITE_UNLOCK
 207         def_bool y
 208         depends on !PREEMPTION || ARCH_INLINE_WRITE_UNLOCK
 209
 210 config INLINE_WRITE_UNLOCK_BH
 211         def_bool y
 212         depends on ARCH_INLINE_WRITE_UNLOCK_BH
 213
 214 config INLINE_WRITE_UNLOCK_IRQ
 215         def_bool y
 216         depends on !PREEMPTION || ARCH_INLINE_WRITE_UNLOCK_IRQ
 217
 218 config INLINE_WRITE_UNLOCK_IRQRESTORE
 219         def_bool y
 220         depends on ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
 221
 222 endif
 223
 224 config ARCH_SUPPORTS_ATOMIC_RMW
 225         bool
 226
 227 config MUTEX_SPIN_ON_OWNER
 228         def_bool y
 229         depends on SMP && ARCH_SUPPORTS_ATOMIC_RMW
 230
 231 config RWSEM_SPIN_ON_OWNER
 232        def_bool y
 233        depends on SMP && ARCH_SUPPORTS_ATOMIC_RMW
 234
 235 config LOCK_SPIN_ON_OWNER
 236        def_bool y
 237        depends on MUTEX_SPIN_ON_OWNER || RWSEM_SPIN_ON_OWNER
 238
 239 config ARCH_USE_QUEUED_SPINLOCKS
 240         bool
 241
 242 config QUEUED_SPINLOCKS
 243         def_bool y if ARCH_USE_QUEUED_SPINLOCKS
 244         depends on SMP
 245
 246 config BPF_ARCH_SPINLOCK
 247         bool
 248
 249 config ARCH_USE_QUEUED_RWLOCKS
 250         bool
 251
 252 config QUEUED_RWLOCKS
 253         def_bool y if ARCH_USE_QUEUED_RWLOCKS
 254         depends on SMP && !PREEMPT_RT
 255
 256 config ARCH_HAS_MMIOWB
 257         bool
 258
 259 config MMIOWB
 260         def_bool y if ARCH_HAS_MMIOWB
 261         depends on SMP