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      1 /****************************************************************************
      2  ****************************************************************************
      3  ***
      4  ***   This header was automatically generated from a Linux kernel header
      5  ***   of the same name, to make information necessary for userspace to
      6  ***   call into the kernel available to libc.  It contains only constants,
      7  ***   structures, and macros generated from the original header, and thus,
      8  ***   contains no copyrightable information.
      9  ***
     10  ****************************************************************************
     11  ****************************************************************************/
     12 #ifndef _ASM_GENERIC_LOCAL_H
     13 #define _ASM_GENERIC_LOCAL_H
     14 
     15 #include <linux/percpu.h>
     16 #include <linux/hardirq.h>
     17 #include <asm/atomic.h>
     18 #include <asm/types.h>
     19 
     20 typedef struct
     21 {
     22  atomic_long_t a;
     23 } local_t;
     24 
     25 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) }
     26 
     27 #define local_read(l) atomic_long_read(&(l)->a)
     28 #define local_set(l,i) atomic_long_set((&(l)->a),(i))
     29 #define local_inc(l) atomic_long_inc(&(l)->a)
     30 #define local_dec(l) atomic_long_dec(&(l)->a)
     31 #define local_add(i,l) atomic_long_add((i),(&(l)->a))
     32 #define local_sub(i,l) atomic_long_sub((i),(&(l)->a))
     33 
     34 #define __local_inc(l) local_set((l), local_read(l) + 1)
     35 #define __local_dec(l) local_set((l), local_read(l) - 1)
     36 #define __local_add(i,l) local_set((l), local_read(l) + (i))
     37 #define __local_sub(i,l) local_set((l), local_read(l) - (i))
     38 
     39 #define cpu_local_read(v) local_read(&__get_cpu_var(v))
     40 #define cpu_local_set(v, i) local_set(&__get_cpu_var(v), (i))
     41 #define cpu_local_inc(v) local_inc(&__get_cpu_var(v))
     42 #define cpu_local_dec(v) local_dec(&__get_cpu_var(v))
     43 #define cpu_local_add(i, v) local_add((i), &__get_cpu_var(v))
     44 #define cpu_local_sub(i, v) local_sub((i), &__get_cpu_var(v))
     45 
     46 #define __cpu_local_inc(v) __local_inc(&__get_cpu_var(v))
     47 #define __cpu_local_dec(v) __local_dec(&__get_cpu_var(v))
     48 #define __cpu_local_add(i, v) __local_add((i), &__get_cpu_var(v))
     49 #define __cpu_local_sub(i, v) __local_sub((i), &__get_cpu_var(v))
     50 
     51 #endif
     52