include/asm-s390/local.h

   1 #ifndef _ASM_LOCAL_H
   2 #define _ASM_LOCAL_H
   3
   4 #include <linux/config.h>
   5 #include <linux/percpu.h>
   6 #include <asm/atomic.h>
   7
   8 #ifndef __s390x__
   9
  10 typedef atomic_t local_t;
  11
  12 #define LOCAL_INIT(i)   ATOMIC_INIT(i)
  13 #define local_read(v)   atomic_read(v)
  14 #define local_set(v,i)  atomic_set(v,i)
  15
  16 #define local_inc(v)    atomic_inc(v)
  17 #define local_dec(v)    atomic_dec(v)
  18 #define local_add(i, v) atomic_add(i, v)
  19 #define local_sub(i, v) atomic_sub(i, v)
  20
  21 #else
  22
  23 typedef atomic64_t local_t;
  24
  25 #define LOCAL_INIT(i)   ATOMIC64_INIT(i)
  26 #define local_read(v)   atomic64_read(v)
  27 #define local_set(v,i)  atomic64_set(v,i)
  28
  29 #define local_inc(v)    atomic64_inc(v)
  30 #define local_dec(v)    atomic64_dec(v)
  31 #define local_add(i, v) atomic64_add(i, v)
  32 #define local_sub(i, v) atomic64_sub(i, v)
  33
  34 #endif
  35
  36 #define __local_inc(v)          ((v)->counter++)
  37 #define __local_dec(v)          ((v)->counter--)
  38 #define __local_add(i,v)        ((v)->counter+=(i))
  39 #define __local_sub(i,v)        ((v)->counter-=(i))
  40
  41 /*
  42  * Use these for per-cpu local_t variables: on some archs they are
  43  * much more efficient than these naive implementations.  Note they take
  44  * a variable, not an address.
  45  */
  46 #define cpu_local_read(v)       local_read(&__get_cpu_var(v))
  47 #define cpu_local_set(v, i)     local_set(&__get_cpu_var(v), (i))
  48
  49 #define cpu_local_inc(v)        local_inc(&__get_cpu_var(v))
  50 #define cpu_local_dec(v)        local_dec(&__get_cpu_var(v))
  51 #define cpu_local_add(i, v)     local_add((i), &__get_cpu_var(v))
  52 #define cpu_local_sub(i, v)     local_sub((i), &__get_cpu_var(v))
  53
  54 #define __cpu_local_inc(v)      __local_inc(&__get_cpu_var(v))
  55 #define __cpu_local_dec(v)      __local_dec(&__get_cpu_var(v))
  56 #define __cpu_local_add(i, v)   __local_add((i), &__get_cpu_var(v))
  57 #define __cpu_local_sub(i, v)   __local_sub((i), &__get_cpu_var(v))
  58
  59 #endif /* _ASM_LOCAL_H */