]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - include/asm-arm/atomic.h
Move architecture-specific includes to arch/$ARCH/include/asm
[karo-tx-uboot.git] / include / asm-arm / atomic.h
diff --git a/include/asm-arm/atomic.h b/include/asm-arm/atomic.h
deleted file mode 100644 (file)
index ba9e4b7..0000000
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- *  linux/include/asm-arm/atomic.h
- *
- *  Copyright (c) 1996 Russell King.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- *  Changelog:
- *   27-06-1996        RMK     Created
- *   13-04-1997        RMK     Made functions atomic!
- *   07-12-1997        RMK     Upgraded for v2.1.
- *   26-08-1998        PJB     Added #ifdef __KERNEL__
- */
-#ifndef __ASM_ARM_ATOMIC_H
-#define __ASM_ARM_ATOMIC_H
-
-#include <linux/config.h>
-
-#ifdef CONFIG_SMP
-#error SMP not supported
-#endif
-
-typedef struct { volatile int counter; } atomic_t;
-
-#define ATOMIC_INIT(i) { (i) }
-
-#ifdef __KERNEL__
-#include <asm/proc/system.h>
-
-#define atomic_read(v) ((v)->counter)
-#define atomic_set(v,i)        (((v)->counter) = (i))
-
-static inline void atomic_add(int i, volatile atomic_t *v)
-{
-       unsigned long flags;
-
-       local_irq_save(flags);
-       v->counter += i;
-       local_irq_restore(flags);
-}
-
-static inline void atomic_sub(int i, volatile atomic_t *v)
-{
-       unsigned long flags;
-
-       local_irq_save(flags);
-       v->counter -= i;
-       local_irq_restore(flags);
-}
-
-static inline void atomic_inc(volatile atomic_t *v)
-{
-       unsigned long flags;
-
-       local_irq_save(flags);
-       v->counter += 1;
-       local_irq_restore(flags);
-}
-
-static inline void atomic_dec(volatile atomic_t *v)
-{
-       unsigned long flags;
-
-       local_irq_save(flags);
-       v->counter -= 1;
-       local_irq_restore(flags);
-}
-
-static inline int atomic_dec_and_test(volatile atomic_t *v)
-{
-       unsigned long flags;
-       int val;
-
-       local_irq_save(flags);
-       val = v->counter;
-       v->counter = val -= 1;
-       local_irq_restore(flags);
-
-       return val == 0;
-}
-
-static inline int atomic_add_negative(int i, volatile atomic_t *v)
-{
-       unsigned long flags;
-       int val;
-
-       local_irq_save(flags);
-       val = v->counter;
-       v->counter = val += i;
-       local_irq_restore(flags);
-
-       return val < 0;
-}
-
-static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
-{
-       unsigned long flags;
-
-       local_irq_save(flags);
-       *addr &= ~mask;
-       local_irq_restore(flags);
-}
-
-/* Atomic operations are already serializing on ARM */
-#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()
-
-#endif
-#endif