diff options
Diffstat (limited to 'arch/xtensa/include/asm/cmpxchg.h')
| -rw-r--r-- | arch/xtensa/include/asm/cmpxchg.h | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/xtensa/include/asm/cmpxchg.h b/arch/xtensa/include/asm/cmpxchg.h index 3699e2818efb..eb87810357ad 100644 --- a/arch/xtensa/include/asm/cmpxchg.h +++ b/arch/xtensa/include/asm/cmpxchg.h @@ -52,16 +52,16 @@ __cmpxchg_u32(volatile int *p, int old, int new) return new; #else __asm__ __volatile__( - " rsil a15, "__stringify(TOPLEVEL)"\n" + " rsil a14, "__stringify(TOPLEVEL)"\n" " l32i %[old], %[mem]\n" " bne %[old], %[cmp], 1f\n" " s32i %[new], %[mem]\n" "1:\n" - " wsr a15, ps\n" + " wsr a14, ps\n" " rsync\n" : [old] "=&a" (old), [mem] "+m" (*p) : [cmp] "a" (old), [new] "r" (new) - : "a15", "memory"); + : "a14", "memory"); return old; #endif } @@ -116,10 +116,10 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr, /* * xchg_u32 * - * Note that a15 is used here because the register allocation + * Note that a14 is used here because the register allocation * done by the compiler is not guaranteed and a window overflow * may not occur between the rsil and wsr instructions. By using - * a15 in the rsil, the machine is guaranteed to be in a state + * a14 in the rsil, the machine is guaranteed to be in a state * where no register reference will cause an overflow. */ @@ -157,14 +157,14 @@ static inline unsigned long xchg_u32(volatile int * m, unsigned long val) #else unsigned long tmp; __asm__ __volatile__( - " rsil a15, "__stringify(TOPLEVEL)"\n" + " rsil a14, "__stringify(TOPLEVEL)"\n" " l32i %[tmp], %[mem]\n" " s32i %[val], %[mem]\n" - " wsr a15, ps\n" + " wsr a14, ps\n" " rsync\n" : [tmp] "=&a" (tmp), [mem] "+m" (*m) : [val] "a" (val) - : "a15", "memory"); + : "a14", "memory"); return tmp; #endif } |