X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-sparc%2Fatomic.h;h=731fa56e0c374c8413c41c8460f16f4844d7046b;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=fe210f3614c3117106f557a7d179ae19c62021e1;hpb=9213980e6a70d8473e0ffd4b39ab5b6caaba9ff5;p=linux-2.6.git diff --git a/include/asm-sparc/atomic.h b/include/asm-sparc/atomic.h index fe210f361..731fa56e0 100644 --- a/include/asm-sparc/atomic.h +++ b/include/asm-sparc/atomic.h @@ -10,7 +10,6 @@ #ifndef __ARCH_SPARC_ATOMIC__ #define __ARCH_SPARC_ATOMIC__ -#include typedef struct { volatile int counter; } atomic_t; @@ -19,6 +18,9 @@ typedef struct { volatile int counter; } atomic_t; #define ATOMIC_INIT(i) { (i) } extern int __atomic_add_return(int, atomic_t *); +extern int atomic_cmpxchg(atomic_t *, int, int); +#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) +extern int atomic_add_unless(atomic_t *, int, int); extern void atomic_set(atomic_t *, int); #define atomic_read(v) ((v)->counter) @@ -46,6 +48,9 @@ extern void atomic_set(atomic_t *, int); #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) #define atomic_dec_and_test(v) (atomic_dec_return(v) == 0) +#define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0) + +#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) /* This is the old 24-bit implementation. It's still used internally * by some sparc-specific code, notably the semaphore implementation. @@ -154,4 +159,5 @@ static inline int __atomic24_sub(int i, atomic24_t *v) #endif /* !(__KERNEL__) */ +#include #endif /* !(__ARCH_SPARC_ATOMIC__) */