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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-13 14:26:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-13 14:26:32 -0700
commit758db3f2118703a1e36374dae5d58bed963e7e0d (patch)
tree12546f52718d903a8cc8fd70abdcd4b2e6826e94 /include/asm-h8300/atomic.h
parent30a2f3c60a84092c8084dfe788b710f8d0768cd4 (diff)
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[h8300] move include/asm-h8300 to arch/h8300/include/asm
Done as a script (well, a single "git mv" actually) on request from Yoshinori Sato as a way to avoid a huge diff. Requested-by: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-h8300/atomic.h')
-rw-r--r--include/asm-h8300/atomic.h144
1 files changed, 0 insertions, 144 deletions
diff --git a/include/asm-h8300/atomic.h b/include/asm-h8300/atomic.h
deleted file mode 100644
index b4cf0ea97ede..000000000000
--- a/include/asm-h8300/atomic.h
+++ /dev/null
@@ -1,144 +0,0 @@
-#ifndef __ARCH_H8300_ATOMIC__
-#define __ARCH_H8300_ATOMIC__
-
-/*
- * Atomic operations that C can't guarantee us. Useful for
- * resource counting etc..
- */
-
-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)
-
-#include <asm/system.h>
-#include <linux/kernel.h>
-
-static __inline__ int atomic_add_return(int i, atomic_t *v)
-{
- int ret,flags;
- local_irq_save(flags);
- ret = v->counter += i;
- local_irq_restore(flags);
- return ret;
-}
-
-#define atomic_add(i, v) atomic_add_return(i, v)
-#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
-
-static __inline__ int atomic_sub_return(int i, atomic_t *v)
-{
- int ret,flags;
- local_irq_save(flags);
- ret = v->counter -= i;
- local_irq_restore(flags);
- return ret;
-}
-
-#define atomic_sub(i, v) atomic_sub_return(i, v)
-#define atomic_sub_and_test(i,v) (atomic_sub_return(i, v) == 0)
-
-static __inline__ int atomic_inc_return(atomic_t *v)
-{
- int ret,flags;
- local_irq_save(flags);
- v->counter++;
- ret = v->counter;
- local_irq_restore(flags);
- return ret;
-}
-
-#define atomic_inc(v) atomic_inc_return(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.
- */
-#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
-
-static __inline__ int atomic_dec_return(atomic_t *v)
-{
- int ret,flags;
- local_irq_save(flags);
- --v->counter;
- ret = v->counter;
- local_irq_restore(flags);
- return ret;
-}
-
-#define atomic_dec(v) atomic_dec_return(v)
-
-static __inline__ int atomic_dec_and_test(atomic_t *v)
-{
- int ret,flags;
- local_irq_save(flags);
- --v->counter;
- ret = v->counter;
- local_irq_restore(flags);
- return ret == 0;
-}
-
-static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
-{
- int ret;
- unsigned long flags;
-
- local_irq_save(flags);
- ret = v->counter;
- if (likely(ret == old))
- v->counter = new;
- local_irq_restore(flags);
- 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;
- unsigned long flags;
-
- local_irq_save(flags);
- ret = v->counter;
- if (ret != u)
- v->counter += a;
- local_irq_restore(flags);
- return ret != u;
-}
-#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
-
-static __inline__ void atomic_clear_mask(unsigned long mask, unsigned long *v)
-{
- __asm__ __volatile__("stc ccr,r1l\n\t"
- "orc #0x80,ccr\n\t"
- "mov.l %0,er0\n\t"
- "and.l %1,er0\n\t"
- "mov.l er0,%0\n\t"
- "ldc r1l,ccr"
- : "=m" (*v) : "g" (~(mask)) :"er0","er1");
-}
-
-static __inline__ void atomic_set_mask(unsigned long mask, unsigned long *v)
-{
- __asm__ __volatile__("stc ccr,r1l\n\t"
- "orc #0x80,ccr\n\t"
- "mov.l %0,er0\n\t"
- "or.l %1,er0\n\t"
- "mov.l er0,%0\n\t"
- "ldc r1l,ccr"
- : "=m" (*v) : "g" (mask) :"er0","er1");
-}
-
-/* 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()
-
-#include <asm-generic/atomic.h>
-#endif /* __ARCH_H8300_ATOMIC __ */