diff options
Diffstat (limited to 'arch/s390/include/asm/atomic_ops.h')
-rw-r--r-- | arch/s390/include/asm/atomic_ops.h | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/arch/s390/include/asm/atomic_ops.h b/arch/s390/include/asm/atomic_ops.h index 65380da9e75f..1d6b2056fad8 100644 --- a/arch/s390/include/asm/atomic_ops.h +++ b/arch/s390/include/asm/atomic_ops.h @@ -169,79 +169,4 @@ __ATOMIC64_OPS(__atomic64_xor, "xgr") #endif /* MARCH_HAS_Z196_FEATURES */ -static __always_inline int __atomic_cmpxchg(int *ptr, int old, int new) -{ - asm volatile( - " cs %[old],%[new],%[ptr]" - : [old] "+d" (old), [ptr] "+Q" (*ptr) - : [new] "d" (new) - : "cc", "memory"); - return old; -} - -static __always_inline long __atomic64_cmpxchg(long *ptr, long old, long new) -{ - asm volatile( - " csg %[old],%[new],%[ptr]" - : [old] "+d" (old), [ptr] "+QS" (*ptr) - : [new] "d" (new) - : "cc", "memory"); - return old; -} - -/* GCC versions before 14.2.0 may die with an ICE in some configurations. */ -#if defined(__GCC_ASM_FLAG_OUTPUTS__) && !(IS_ENABLED(CONFIG_CC_IS_GCC) && (GCC_VERSION < 140200)) - -static __always_inline bool __atomic_cmpxchg_bool(int *ptr, int old, int new) -{ - int cc; - - asm volatile( - " cs %[old],%[new],%[ptr]" - : [old] "+d" (old), [ptr] "+Q" (*ptr), "=@cc" (cc) - : [new] "d" (new) - : "memory"); - return cc == 0; -} - -static __always_inline bool __atomic64_cmpxchg_bool(long *ptr, long old, long new) -{ - int cc; - - asm volatile( - " csg %[old],%[new],%[ptr]" - : [old] "+d" (old), [ptr] "+QS" (*ptr), "=@cc" (cc) - : [new] "d" (new) - : "memory"); - return cc == 0; -} - -#else /* __GCC_ASM_FLAG_OUTPUTS__ */ - -static __always_inline bool __atomic_cmpxchg_bool(int *ptr, int old, int new) -{ - int old_expected = old; - - asm volatile( - " cs %[old],%[new],%[ptr]" - : [old] "+d" (old), [ptr] "+Q" (*ptr) - : [new] "d" (new) - : "cc", "memory"); - return old == old_expected; -} - -static __always_inline bool __atomic64_cmpxchg_bool(long *ptr, long old, long new) -{ - long old_expected = old; - - asm volatile( - " csg %[old],%[new],%[ptr]" - : [old] "+d" (old), [ptr] "+QS" (*ptr) - : [new] "d" (new) - : "cc", "memory"); - return old == old_expected; -} - -#endif /* __GCC_ASM_FLAG_OUTPUTS__ */ - #endif /* __ARCH_S390_ATOMIC_OPS__ */ |