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Diffstat (limited to 'arch/s390/include/asm/atomic.h')
-rw-r--r--arch/s390/include/asm/atomic.h95
1 files changed, 0 insertions, 95 deletions
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index fa934fe080c1..adbe3802e377 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -160,8 +160,6 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
#define ATOMIC64_INIT(i) { (i) }
-#ifdef CONFIG_64BIT
-
#define __ATOMIC64_NO_BARRIER "\n"
#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
@@ -274,99 +272,6 @@ static inline long long atomic64_cmpxchg(atomic64_t *v,
#undef __ATOMIC64_LOOP
-#else /* CONFIG_64BIT */
-
-typedef struct {
- long long counter;
-} atomic64_t;
-
-static inline long long atomic64_read(const atomic64_t *v)
-{
- register_pair rp;
-
- asm volatile(
- " lm %0,%N0,%1"
- : "=&d" (rp) : "Q" (v->counter) );
- return rp.pair;
-}
-
-static inline void atomic64_set(atomic64_t *v, long long i)
-{
- register_pair rp = {.pair = i};
-
- asm volatile(
- " stm %1,%N1,%0"
- : "=Q" (v->counter) : "d" (rp) );
-}
-
-static inline long long atomic64_xchg(atomic64_t *v, long long new)
-{
- register_pair rp_new = {.pair = new};
- register_pair rp_old;
-
- asm volatile(
- " lm %0,%N0,%1\n"
- "0: cds %0,%2,%1\n"
- " jl 0b\n"
- : "=&d" (rp_old), "+Q" (v->counter)
- : "d" (rp_new)
- : "cc");
- return rp_old.pair;
-}
-
-static inline long long atomic64_cmpxchg(atomic64_t *v,
- long long old, long long new)
-{
- register_pair rp_old = {.pair = old};
- register_pair rp_new = {.pair = new};
-
- asm volatile(
- " cds %0,%2,%1"
- : "+&d" (rp_old), "+Q" (v->counter)
- : "d" (rp_new)
- : "cc");
- return rp_old.pair;
-}
-
-
-static inline long long atomic64_add_return(long long i, atomic64_t *v)
-{
- long long old, new;
-
- do {
- old = atomic64_read(v);
- new = old + i;
- } while (atomic64_cmpxchg(v, old, new) != old);
- return new;
-}
-
-static inline void atomic64_set_mask(unsigned long long mask, atomic64_t *v)
-{
- long long old, new;
-
- do {
- old = atomic64_read(v);
- new = old | mask;
- } while (atomic64_cmpxchg(v, old, new) != old);
-}
-
-static inline void atomic64_clear_mask(unsigned long long mask, atomic64_t *v)
-{
- long long old, new;
-
- do {
- old = atomic64_read(v);
- new = old & mask;
- } while (atomic64_cmpxchg(v, old, new) != old);
-}
-
-static inline void atomic64_add(long long i, atomic64_t *v)
-{
- atomic64_add_return(i, v);
-}
-
-#endif /* CONFIG_64BIT */
-
static inline int atomic64_add_unless(atomic64_t *v, long long i, long long u)
{
long long c, old;