diff options
Diffstat (limited to 'arch/arm/atomic.h')
| -rw-r--r-- | arch/arm/atomic.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/arm/atomic.h b/arch/arm/atomic.h index d8f64843..d4ba73f1 100644 --- a/arch/arm/atomic.h +++ b/arch/arm/atomic.h @@ -22,9 +22,8 @@ static inline int a_ctz_64(uint64_t x) return a_ctz_l(y); } -#if __ARM_ARCH_6__ || __ARM_ARCH_6K__ || __ARM_ARCH_6ZK__ \ - || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ \ - || __ARM_ARCH >= 7 +#if ((__ARM_ARCH_6__ || __ARM_ARCH_6K__ || __ARM_ARCH_6ZK__) && !__thumb__) \ + || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7 #if __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7 #define MEM_BARRIER "dmb ish" @@ -39,6 +38,9 @@ static inline int __k_cas(int t, int s, volatile int *p) " " MEM_BARRIER "\n" "1: ldrex %0,%3\n" " subs %0,%0,%1\n" +#ifdef __thumb__ + " itt eq\n" +#endif " strexeq %0,%2,%3\n" " teqeq %0,#1\n" " beq 1b\n" |