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authorGreg Ungerer <gerg@uclinux.org>2008-07-31 14:38:07 +1000
committerGreg Ungerer <gerg@uclinux.org>2008-08-07 15:36:16 +1000
commit58750139001bae11a1f9b074f3a9c774fecf5ba8 (patch)
treeecdafd4d8c3d2ef2cee7e512b7310552863a617c /include/asm-m68knommu/atomic.h
parent685d87f7ccc649ab92b55e18e507a65d0e694eb9 (diff)
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Move all of include/asm-m68knommu to arch/m68knommu/include/asm.
With the current kbuild infrastructure in place no other changes are required for this to work. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'include/asm-m68knommu/atomic.h')
-rw-r--r--include/asm-m68knommu/atomic.h155
1 files changed, 0 insertions, 155 deletions
diff --git a/include/asm-m68knommu/atomic.h b/include/asm-m68knommu/atomic.h
deleted file mode 100644
index d5632a305dae..000000000000
--- a/include/asm-m68knommu/atomic.h
+++ /dev/null
@@ -1,155 +0,0 @@
-#ifndef __ARCH_M68KNOMMU_ATOMIC__
-#define __ARCH_M68KNOMMU_ATOMIC__
-
-#include <asm/system.h>
-
-/*
- * Atomic operations that C can't guarantee us. Useful for
- * resource counting etc..
- */
-
-/*
- * We do not have SMP m68k systems, so we don't have to deal with that.
- */
-
-typedef struct { int counter; } atomic_t;
-#define ATOMIC_INIT(i) { (i) }
-
-#define atomic_read(v) ((v)->counter)
-#define atomic_set(v, i) (((v)->counter) = i)
-
-static __inline__ void atomic_add(int i, atomic_t *v)
-{
-#ifdef CONFIG_COLDFIRE
- __asm__ __volatile__("addl %1,%0" : "+m" (*v) : "d" (i));
-#else
- __asm__ __volatile__("addl %1,%0" : "+m" (*v) : "di" (i));
-#endif
-}
-
-static __inline__ void atomic_sub(int i, atomic_t *v)
-{
-#ifdef CONFIG_COLDFIRE
- __asm__ __volatile__("subl %1,%0" : "+m" (*v) : "d" (i));
-#else
- __asm__ __volatile__("subl %1,%0" : "+m" (*v) : "di" (i));
-#endif
-}
-
-static __inline__ int atomic_sub_and_test(int i, atomic_t * v)
-{
- char c;
-#ifdef CONFIG_COLDFIRE
- __asm__ __volatile__("subl %2,%1; seq %0"
- : "=d" (c), "+m" (*v)
- : "d" (i));
-#else
- __asm__ __volatile__("subl %2,%1; seq %0"
- : "=d" (c), "+m" (*v)
- : "di" (i));
-#endif
- return c != 0;
-}
-
-static __inline__ void atomic_inc(volatile atomic_t *v)
-{
- __asm__ __volatile__("addql #1,%0" : "+m" (*v));
-}
-
-/*
- * atomic_inc_and_test - increment and test
- * @v: pointer of type atomic_t
- *
- * Atomically increments @v by 1
- * and returns true if the result is zero, or false for all
- * other cases.
- */
-
-static __inline__ int atomic_inc_and_test(volatile atomic_t *v)
-{
- char c;
- __asm__ __volatile__("addql #1,%1; seq %0" : "=d" (c), "+m" (*v));
- return c != 0;
-}
-
-static __inline__ void atomic_dec(volatile atomic_t *v)
-{
- __asm__ __volatile__("subql #1,%0" : "+m" (*v));
-}
-
-static __inline__ int atomic_dec_and_test(volatile atomic_t *v)
-{
- char c;
- __asm__ __volatile__("subql #1,%1; seq %0" : "=d" (c), "+m" (*v));
- return c != 0;
-}
-
-static __inline__ void atomic_clear_mask(unsigned long mask, unsigned long *v)
-{
- __asm__ __volatile__("andl %1,%0" : "+m" (*v) : "id" (~(mask)));
-}
-
-static __inline__ void atomic_set_mask(unsigned long mask, unsigned long *v)
-{
- __asm__ __volatile__("orl %1,%0" : "+m" (*v) : "id" (mask));
-}
-
-/* Atomic operations are already serializing */
-#define smp_mb__before_atomic_dec() barrier()
-#define smp_mb__after_atomic_dec() barrier()
-#define smp_mb__before_atomic_inc() barrier()
-#define smp_mb__after_atomic_inc() barrier()
-
-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;
-}
-
-#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_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
-#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
-
-static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
-{
- int c, old;
- c = atomic_read(v);
- for (;;) {
- if (unlikely(c == (u)))
- break;
- old = atomic_cmpxchg((v), c, c + (a));
- if (likely(old == c))
- break;
- c = old;
- }
- return c != (u);
-}
-
-#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
-
-#define atomic_dec_return(v) atomic_sub_return(1,(v))
-#define atomic_inc_return(v) atomic_add_return(1,(v))
-
-#include <asm-generic/atomic.h>
-#endif /* __ARCH_M68KNOMMU_ATOMIC __ */