diff options
Diffstat (limited to 'arch/tile/include/asm/bitops_64.h')
| -rw-r--r-- | arch/tile/include/asm/bitops_64.h | 21 |
1 files changed, 7 insertions, 14 deletions
diff --git a/arch/tile/include/asm/bitops_64.h b/arch/tile/include/asm/bitops_64.h index e9c8e381ee0..bb1a29221fc 100644 --- a/arch/tile/include/asm/bitops_64.h +++ b/arch/tile/include/asm/bitops_64.h @@ -16,8 +16,7 @@ #define _ASM_TILE_BITOPS_64_H #include <linux/compiler.h> -#include <linux/atomic.h> -#include <asm/system.h> +#include <asm/cmpxchg.h> /* See <asm/bitops.h> for API comments. */ @@ -33,20 +32,15 @@ static inline void clear_bit(unsigned nr, volatile unsigned long *addr) __insn_fetchand((void *)(addr + nr / BITS_PER_LONG), ~mask); } -#define smp_mb__before_clear_bit() smp_mb() -#define smp_mb__after_clear_bit() smp_mb() - - static inline void change_bit(unsigned nr, volatile unsigned long *addr) { - unsigned long old, mask = (1UL << (nr % BITS_PER_LONG)); - long guess, oldval; + unsigned long mask = (1UL << (nr % BITS_PER_LONG)); + unsigned long guess, oldval; addr += nr / BITS_PER_LONG; - old = *addr; + oldval = *addr; do { guess = oldval; - oldval = atomic64_cmpxchg((atomic64_t *)addr, - guess, guess ^ mask); + oldval = cmpxchg(addr, guess, guess ^ mask); } while (guess != oldval); } @@ -86,13 +80,12 @@ static inline int test_and_change_bit(unsigned nr, volatile unsigned long *addr) { unsigned long mask = (1UL << (nr % BITS_PER_LONG)); - long guess, oldval = *addr; + unsigned long guess, oldval; addr += nr / BITS_PER_LONG; oldval = *addr; do { guess = oldval; - oldval = atomic64_cmpxchg((atomic64_t *)addr, - guess, guess ^ mask); + oldval = cmpxchg(addr, guess, guess ^ mask); } while (guess != oldval); return (oldval & mask) != 0; } |