| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** This header was automatically generated from a Linux kernel header |
| *** of the same name, to make information necessary for userspace to |
| *** call into the kernel available to libc. It contains only constants, |
| *** structures, and macros generated from the original header, and thus, |
| *** contains no copyrightable information. |
| *** |
| **************************************************************************** |
| ****************************************************************************/ |
| #ifndef __ASM_SH_ATOMIC_H |
| #define __ASM_SH_ATOMIC_H |
| |
| typedef struct { volatile int counter; } atomic_t; |
| |
| #define ATOMIC_INIT(i) ( (atomic_t) { (i) } ) |
| |
| #define atomic_read(v) ((v)->counter) |
| #define atomic_set(v,i) ((v)->counter = (i)) |
| |
| #include <linux/compiler.h> |
| #include <asm/system.h> |
| |
| #include <asm/atomic-llsc.h> |
| |
| #define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) |
| |
| #define atomic_dec_return(v) atomic_sub_return(1,(v)) |
| #define atomic_inc_return(v) atomic_add_return(1,(v)) |
| |
| #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) |
| |
| #define atomic_sub_and_test(i,v) (atomic_sub_return((i), (v)) == 0) |
| #define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0) |
| |
| #define atomic_inc(v) atomic_add(1,(v)) |
| #define atomic_dec(v) atomic_sub(1,(v)) |
| |
| #define atomic_xchg(v, new) (xchg(&((v)->counter), new)) |
| #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) |
| #define smp_mb__before_atomic_dec() barrier() |
| #define smp_mb__after_atomic_dec() barrier() |
| #define smp_mb__before_atomic_inc() barrier() |
| #define smp_mb__after_atomic_inc() barrier() |
| #include <asm-generic/atomic.h> |
| #endif |