summaryrefslogtreecommitdiff
path: root/include/asm-ppc/atomic.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-ppc/atomic.h')
-rw-r--r--include/asm-ppc/atomic.h95
1 files changed, 0 insertions, 95 deletions
diff --git a/include/asm-ppc/atomic.h b/include/asm-ppc/atomic.h
deleted file mode 100644
index 23f22df..0000000
--- a/include/asm-ppc/atomic.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * PowerPC atomic operations
- */
-
-#ifndef _ASM_PPC_ATOMIC_H_
-#define _ASM_PPC_ATOMIC_H_
-
-#include <linux/config.h>
-
-#ifdef CONFIG_SMP
-typedef struct { volatile int counter; } atomic_t;
-#else
-typedef struct { int counter; } atomic_t;
-#endif
-
-#define ATOMIC_INIT(i) { (i) }
-
-#define atomic_read(v) ((v)->counter)
-#define atomic_set(v,i) (((v)->counter) = (i))
-
-extern void atomic_clear_mask(unsigned long mask, unsigned long *addr);
-extern void atomic_set_mask(unsigned long mask, unsigned long *addr);
-
-extern __inline__ int atomic_add_return(int a, atomic_t *v)
-{
- int t;
-
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%3\n\
- add %0,%2,%0\n\
- stwcx. %0,0,%3\n\
- bne- 1b"
- : "=&r" (t), "=m" (*v)
- : "r" (a), "r" (v), "m" (*v)
- : "cc");
-
- return t;
-}
-
-extern __inline__ int atomic_sub_return(int a, atomic_t *v)
-{
- int t;
-
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%3\n\
- subf %0,%2,%0\n\
- stwcx. %0,0,%3\n\
- bne- 1b"
- : "=&r" (t), "=m" (*v)
- : "r" (a), "r" (v), "m" (*v)
- : "cc");
-
- return t;
-}
-
-extern __inline__ int atomic_inc_return(atomic_t *v)
-{
- int t;
-
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%2\n\
- addic %0,%0,1\n\
- stwcx. %0,0,%2\n\
- bne- 1b"
- : "=&r" (t), "=m" (*v)
- : "r" (v), "m" (*v)
- : "cc");
-
- return t;
-}
-
-extern __inline__ int atomic_dec_return(atomic_t *v)
-{
- int t;
-
- __asm__ __volatile__("\n\
-1: lwarx %0,0,%2\n\
- addic %0,%0,-1\n\
- stwcx. %0,0,%2\n\
- bne 1b"
- : "=&r" (t), "=m" (*v)
- : "r" (v), "m" (*v)
- : "cc");
-
- return t;
-}
-
-#define atomic_add(a, v) ((void) atomic_add_return((a), (v)))
-#define atomic_sub(a, v) ((void) atomic_sub_return((a), (v)))
-#define atomic_sub_and_test(a, v) (atomic_sub_return((a), (v)) == 0)
-#define atomic_inc(v) ((void) atomic_inc_return((v)))
-#define atomic_dec(v) ((void) atomic_dec_return((v)))
-#define atomic_dec_and_test(v) (atomic_dec_return((v)) == 0)
-
-#endif /* _ASM_PPC_ATOMIC_H_ */