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