diff options
Diffstat (limited to 'include/asm-cris/atomic.h')
-rw-r--r-- | include/asm-cris/atomic.h | 66 |
1 files changed, 24 insertions, 42 deletions
diff --git a/include/asm-cris/atomic.h b/include/asm-cris/atomic.h index b3dfea5..70605b0 100644 --- a/include/asm-cris/atomic.h +++ b/include/asm-cris/atomic.h @@ -4,21 +4,14 @@ #define __ASM_CRIS_ATOMIC__ #include <asm/system.h> +#include <asm/arch/atomic.h> /* * Atomic operations that C can't guarantee us. Useful for * resource counting etc.. */ -/* - * Make sure gcc doesn't try to be clever and move things around - * on us. We need to use _exactly_ the address the user gave us, - * not some alias that contains the same information. - */ - -#define __atomic_fool_gcc(x) (*(struct { int a[100]; } *)x) - -typedef struct { int counter; } atomic_t; +typedef struct { volatile int counter; } atomic_t; #define ATOMIC_INIT(i) { (i) } @@ -30,29 +23,26 @@ typedef struct { int counter; } atomic_t; extern __inline__ void atomic_add(int i, volatile atomic_t *v) { unsigned long flags; - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(v, flags); v->counter += i; - local_irq_restore(flags); + cris_atomic_restore(v, flags); } extern __inline__ void atomic_sub(int i, volatile atomic_t *v) { unsigned long flags; - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(v, flags); v->counter -= i; - local_irq_restore(flags); + cris_atomic_restore(v, flags); } extern __inline__ int atomic_add_return(int i, volatile atomic_t *v) { unsigned long flags; int retval; - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(v, flags); retval = (v->counter += i); - local_irq_restore(flags); + cris_atomic_restore(v, flags); return retval; } @@ -62,10 +52,9 @@ extern __inline__ int atomic_sub_return(int i, volatile atomic_t *v) { unsigned long flags; int retval; - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(v, flags); retval = (v->counter -= i); - local_irq_restore(flags); + cris_atomic_restore(v, flags); return retval; } @@ -73,39 +62,35 @@ extern __inline__ int atomic_sub_and_test(int i, volatile atomic_t *v) { int retval; unsigned long flags; - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(v, flags); retval = (v->counter -= i) == 0; - local_irq_restore(flags); + cris_atomic_restore(v, flags); return retval; } extern __inline__ void atomic_inc(volatile atomic_t *v) { unsigned long flags; - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(v, flags); (v->counter)++; - local_irq_restore(flags); + cris_atomic_restore(v, flags); } extern __inline__ void atomic_dec(volatile atomic_t *v) { unsigned long flags; - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(v, flags); (v->counter)--; - local_irq_restore(flags); + cris_atomic_restore(v, flags); } extern __inline__ int atomic_inc_return(volatile atomic_t *v) { unsigned long flags; int retval; - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(v, flags); retval = (v->counter)++; - local_irq_restore(flags); + cris_atomic_restore(v, flags); return retval; } @@ -113,20 +98,18 @@ extern __inline__ int atomic_dec_return(volatile atomic_t *v) { unsigned long flags; int retval; - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(v, flags); retval = (v->counter)--; - local_irq_restore(flags); + cris_atomic_restore(v, flags); return retval; } extern __inline__ int atomic_dec_and_test(volatile atomic_t *v) { int retval; unsigned long flags; - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(v, flags); retval = --(v->counter) == 0; - local_irq_restore(flags); + cris_atomic_restore(v, flags); return retval; } @@ -134,10 +117,9 @@ extern __inline__ int atomic_inc_and_test(volatile atomic_t *v) { int retval; unsigned long flags; - local_save_flags(flags); - local_irq_disable(); + cris_atomic_save(v, flags); retval = ++(v->counter) == 0; - local_irq_restore(flags); + cris_atomic_restore(v, flags); return retval; } |