diff options
| -rw-r--r-- | arch/powerpc/include/asm/reg.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 83a7fc37d490..eb4aa889916d 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -1417,14 +1417,20 @@ static inline u32 mfsr(u32 idx) { u32 val; - asm volatile("mfsrin %0, %1" : "=r" (val): "r" (idx)); + if (__builtin_constant_p(idx)) + asm volatile("mfsr %0, %1" : "=r" (val): "i" (idx >> 28)); + else + asm volatile("mfsrin %0, %1" : "=r" (val): "r" (idx)); return val; } static inline void mtsr(u32 val, u32 idx) { - asm volatile("mtsrin %0, %1" : : "r" (val), "r" (idx)); + if (__builtin_constant_p(idx)) + asm volatile("mtsr %1, %0" : : "r" (val), "i" (idx >> 28)); + else + asm volatile("mtsrin %0, %1" : : "r" (val), "r" (idx)); } #endif |