Commit 71099a7e authored by Paul Mackerras's avatar Paul Mackerras

PPC32: adjust <asm/atomic.h> so it doesn't need <asm/system.h>.

Now atomic.h defines the smp_mb__* macros completely itself without
needing the smp_mb definition from <asm/system.h>
parent 6979c6a1
......@@ -17,8 +17,10 @@ typedef struct { volatile int counter; } atomic_t;
extern void atomic_clear_mask(unsigned long mask, unsigned long *addr);
#ifdef CONFIG_SMP
#define SMP_SYNC "sync"
#define SMP_ISYNC "\n\tisync"
#else
#define SMP_SYNC ""
#define SMP_ISYNC
#endif
......@@ -192,10 +194,11 @@ static __inline__ int atomic_dec_if_positive(atomic_t *v)
return t;
}
#define smp_mb__before_atomic_dec() smp_mb()
#define smp_mb__after_atomic_dec() smp_mb()
#define smp_mb__before_atomic_inc() smp_mb()
#define smp_mb__after_atomic_inc() smp_mb()
#define __MB __asm__ __volatile__ (SMP_SYNC : : : "memory")
#define smp_mb__before_atomic_dec() __MB
#define smp_mb__after_atomic_dec() __MB
#define smp_mb__before_atomic_inc() __MB
#define smp_mb__after_atomic_inc() __MB
#endif /* __KERNEL__ */
#endif /* _ASM_PPC_ATOMIC_H_ */
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