diff options
Diffstat (limited to 'arch/xtensa/include/asm/atomic.h')
| -rw-r--r-- | arch/xtensa/include/asm/atomic.h | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/xtensa/include/asm/atomic.h b/arch/xtensa/include/asm/atomic.h index c3f289174c1..e5103b47a8c 100644 --- a/arch/xtensa/include/asm/atomic.h +++ b/arch/xtensa/include/asm/atomic.h @@ -7,7 +7,7 @@ * License. See the file "COPYING" in the main directory of this archive * for more details. * - * Copyright (C) 2001 - 2005 Tensilica Inc. + * Copyright (C) 2001 - 2008 Tensilica Inc. */ #ifndef _XTENSA_ATOMIC_H @@ -19,16 +19,17 @@ #ifdef __KERNEL__ #include <asm/processor.h> #include <asm/cmpxchg.h> +#include <asm/barrier.h> #define ATOMIC_INIT(i) { (i) } /* * This Xtensa implementation assumes that the right mechanism - * for exclusion is for locking interrupts to level 1. + * for exclusion is for locking interrupts to level EXCM_LEVEL. * * Locking interrupts looks like this: * - * rsil a15, 1 + * rsil a15, LOCKLEVEL * <code> * wsr a15, PS * rsync @@ -387,12 +388,6 @@ static inline void atomic_set_mask(unsigned int mask, atomic_t *v) #endif } -/* Atomic operations are already serializing */ -#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() - #endif /* __KERNEL__ */ #endif /* _XTENSA_ATOMIC_H */ |