#define atomic_read(v) ((v)->counter)
#define atomic_set(v,i) ((v)->counter = (i))
+#include <linux/compiler.h>
#include <asm/system.h>
-/*
- * To get proper branch prediction for the main line, we must branch
- * forward to code at the end of this object's .text section, then
- * branch back to restart the operation.
- */
-
-static __inline__ void atomic_add(int i, atomic_t * v)
-{
- unsigned long flags;
-
- local_irq_save(flags);
- *(long *)v += i;
- local_irq_restore(flags);
-}
-
-static __inline__ void atomic_sub(int i, atomic_t *v)
-{
- unsigned long flags;
-
- local_irq_save(flags);
- *(long *)v -= i;
- local_irq_restore(flags);
-}
-
-static __inline__ int atomic_add_return(int i, atomic_t * v)
-{
- unsigned long temp, flags;
-
- local_irq_save(flags);
- temp = *(long *)v;
- temp += i;
- *(long *)v = temp;
- local_irq_restore(flags);
-
- return temp;
-}
+#if defined(CONFIG_GUSA_RB)
+#include <asm/atomic-grb.h>
+#elif defined(CONFIG_CPU_SH4A)
+#include <asm/atomic-llsc.h>
+#else
+#include <asm/atomic-irq.h>
+#endif
#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
-static __inline__ int atomic_sub_return(int i, atomic_t * v)
-{
- unsigned long temp, flags;
-
- local_irq_save(flags);
- temp = *(long *)v;
- temp -= i;
- *(long *)v = temp;
- local_irq_restore(flags);
-
- return temp;
-}
-
#define atomic_dec_return(v) atomic_sub_return(1,(v))
#define atomic_inc_return(v) atomic_add_return(1,(v))
#define atomic_inc(v) atomic_add(1,(v))
#define atomic_dec(v) atomic_sub(1,(v))
+#ifndef CONFIG_GUSA_RB
static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
{
int ret;
return ret;
}
-#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
-
static inline int atomic_add_unless(atomic_t *v, int a, int u)
{
int ret;
return ret != u;
}
-#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
-
-static __inline__ void atomic_clear_mask(unsigned int mask, atomic_t *v)
-{
- unsigned long flags;
-
- local_irq_save(flags);
- *(long *)v &= ~mask;
- local_irq_restore(flags);
-}
-
-static __inline__ void atomic_set_mask(unsigned int mask, atomic_t *v)
-{
- unsigned long flags;
+#endif
- local_irq_save(flags);
- *(long *)v |= mask;
- local_irq_restore(flags);
-}
+#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
/* Atomic operations are already serializing on SH */
#define smp_mb__before_atomic_dec() barrier()