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 _ARCH_I386_LOCAL_H 20 #define _ARCH_I386_LOCAL_H 21 #include <linux/percpu.h> 22 #include <asm/system.h> 23 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 24 #include <asm/atomic.h> 25 typedef struct 26 { 27 atomic_long_t a; 28 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 29 } local_t; 30 #define LOCAL_INIT(i) { ATOMIC_LONG_INIT(i) } 31 #define local_read(l) atomic_long_read(&(l)->a) 32 #define local_set(l,i) atomic_long_set(&(l)->a, (i)) 33 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 34 #define local_inc_return(l) (local_add_return(1,l)) 35 #define local_dec_return(l) (local_sub_return(1,l)) 36 #define local_cmpxchg(l, o, n) (cmpxchg_local(&((l)->a.counter), (o), (n))) 37 #define local_xchg(l, n) (xchg(&((l)->a.counter), (n))) 38 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 39 #define local_add_unless(l, a, u) ({ long c, old; c = local_read(l); for (;;) { if (unlikely(c == (u))) break; old = local_cmpxchg((l), c, c + (a)); if (likely(old == c)) break; c = old; } c != (u); }) 40 #define local_inc_not_zero(l) local_add_unless((l), 1, 0) 41 #define __local_inc(l) local_inc(l) 42 #define __local_dec(l) local_dec(l) 43 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 44 #define __local_add(i,l) local_add((i),(l)) 45 #define __local_sub(i,l) local_sub((i),(l)) 46 #define cpu_local_wrap_v(l) ({ local_t res__; preempt_disable(); res__ = (l); preempt_enable(); res__; }) 47 #define cpu_local_wrap(l) ({ preempt_disable(); l; preempt_enable(); }) 48 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 49 #define cpu_local_read(l) cpu_local_wrap_v(local_read(&__get_cpu_var(l))) 50 #define cpu_local_set(l, i) cpu_local_wrap(local_set(&__get_cpu_var(l), (i))) 51 #define cpu_local_inc(l) cpu_local_wrap(local_inc(&__get_cpu_var(l))) 52 #define cpu_local_dec(l) cpu_local_wrap(local_dec(&__get_cpu_var(l))) 53 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 54 #define cpu_local_add(i, l) cpu_local_wrap(local_add((i), &__get_cpu_var(l))) 55 #define cpu_local_sub(i, l) cpu_local_wrap(local_sub((i), &__get_cpu_var(l))) 56 #define __cpu_local_inc(l) cpu_local_inc(l) 57 #define __cpu_local_dec(l) cpu_local_dec(l) 58 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */ 59 #define __cpu_local_add(i, l) cpu_local_add((i), (l)) 60 #define __cpu_local_sub(i, l) cpu_local_sub((i), (l)) 61 #endif 62