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 ***   To edit the content of this header, modify the corresponding
11 ***   source file (e.g. under external/kernel-headers/original/) then
12 ***   run bionic/libc/kernel/tools/update_all.py
13 ***
14 ***   Any manual change here will be lost the next time this script will
15 ***   be run. You've been warned!
16 ***
17 ****************************************************************************
18 ****************************************************************************/
19#ifndef _ASM_ATOMIC_H
20#define _ASM_ATOMIC_H
21#include <linux/irqflags.h>
22#include <asm/barrier.h>
23/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
24#include <asm/cpu-features.h>
25#include <asm/war.h>
26#include <asm/system.h>
27typedef struct { volatile int counter; } atomic_t;
28/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
29#define ATOMIC_INIT(i) { (i) }
30#define atomic_read(v) ((v)->counter)
31#define atomic_set(v, i) ((v)->counter = (i))
32#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
33/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
34#define atomic_xchg(v, new) (xchg(&((v)->counter), (new)))
35#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
36#define atomic_dec_return(v) atomic_sub_return(1, (v))
37#define atomic_inc_return(v) atomic_add_return(1, (v))
38/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
39#define atomic_sub_and_test(i, v) (atomic_sub_return((i), (v)) == 0)
40#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
41#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0)
42#define atomic_dec_if_positive(v) atomic_sub_if_positive(1, v)
43/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
44#define atomic_inc(v) atomic_add(1, (v))
45#define atomic_dec(v) atomic_sub(1, (v))
46#define atomic_add_negative(i, v) (atomic_add_return(i, (v)) < 0)
47#define smp_mb__before_atomic_dec() smp_llsc_mb()
48/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
49#define smp_mb__after_atomic_dec() smp_llsc_mb()
50#define smp_mb__before_atomic_inc() smp_llsc_mb()
51#define smp_mb__after_atomic_inc() smp_llsc_mb()
52#include <asm-generic/atomic.h>
53/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
54#endif
55