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asm/ppc: Fix a regression in powerpc atomics

Add a missing constraint to the input operand list.
This fixes a regression caused by d4be138a7b.
Thanks to Orion Poplawski for reporting the issue.

Refs #2610

Signed-off-by: Nysal Jan K.A <jnysal@in.ibm.com>
Этот коммит содержится в:
Nysal Jan K.A 2017-01-11 10:36:19 -05:00
родитель 31a8476223
Коммит 97801028ba

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@ -230,6 +230,7 @@ static inline int32_t opal_atomic_swap_32(volatile int32_t *addr, int32_t newval
#if (OPAL_ASSEMBLY_ARCH == OPAL_POWERPC64)
#if OPAL_GCC_INLINE_ASSEMBLY
static inline int64_t opal_atomic_add_64 (volatile int64_t* v, int64_t inc)
{
int64_t t;
@ -239,7 +240,7 @@ static inline int64_t opal_atomic_add_64 (volatile int64_t* v, int64_t inc)
" stdcx. %0, 0, %3 \n\t"
" bne- 1b \n\t"
: "=&r" (t), "=m" (*v)
: "r" (OPAL_ASM_VALUE64(inc)), "r" OPAL_ASM_ADDR(v)
: "r" (OPAL_ASM_VALUE64(inc)), "r" OPAL_ASM_ADDR(v), "m" (*v)
: "cc");
return t;
@ -256,7 +257,7 @@ static inline int64_t opal_atomic_sub_64 (volatile int64_t* v, int64_t dec)
" stdcx. %0,0,%3 \n\t"
" bne- 1b \n\t"
: "=&r" (t), "=m" (*v)
: "r" (OPAL_ASM_VALUE64(dec)), "r" OPAL_ASM_ADDR(v)
: "r" (OPAL_ASM_VALUE64(dec)), "r" OPAL_ASM_ADDR(v), "m" (*v)
: "cc");
return t;
@ -275,7 +276,7 @@ static inline int opal_atomic_cmpset_64(volatile int64_t *addr,
" bne- 1b \n\t"
"2:"
: "=&r" (ret), "=m" (*addr)
: "r" (addr), "r" (OPAL_ASM_VALUE64(oldval)), "r" (OPAL_ASM_VALUE64(newval))
: "r" (addr), "r" (OPAL_ASM_VALUE64(oldval)), "r" (OPAL_ASM_VALUE64(newval)), "m" (*addr)
: "cc", "memory");
return (ret == oldval);