1/*
2 * Copyright 2004-2011 Analog Devices Inc.
3 *
4 * Licensed under the GPL-2 or later.
5 */
6
7#ifndef __ARCH_BLACKFIN_ATOMIC__
8#define __ARCH_BLACKFIN_ATOMIC__
9
10#include <asm/cmpxchg.h>
11
12#ifdef CONFIG_SMP
13
14#include <asm/barrier.h>
15#include <linux/linkage.h>
16#include <linux/types.h>
17
18asmlinkage int __raw_uncached_fetch_asm(const volatile int *ptr);
19asmlinkage int __raw_atomic_update_asm(volatile int *ptr, int value);
20asmlinkage int __raw_atomic_clear_asm(volatile int *ptr, int value);
21asmlinkage int __raw_atomic_set_asm(volatile int *ptr, int value);
22asmlinkage int __raw_atomic_xor_asm(volatile int *ptr, int value);
23asmlinkage int __raw_atomic_test_asm(const volatile int *ptr, int value);
24
25#define atomic_read(v) __raw_uncached_fetch_asm(&(v)->counter)
26
27#define atomic_add_return(i, v) __raw_atomic_update_asm(&(v)->counter, i)
28#define atomic_sub_return(i, v) __raw_atomic_update_asm(&(v)->counter, -(i))
29
30#define atomic_clear_mask(m, v) __raw_atomic_clear_asm(&(v)->counter, m)
31#define atomic_set_mask(m, v)   __raw_atomic_set_asm(&(v)->counter, m)
32
33#endif
34
35#include <asm-generic/atomic.h>
36
37#endif
38