Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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 <linux/linkage.h>
15
16asmlinkage int __raw_uncached_fetch_asm(const volatile int *ptr);
17asmlinkage int __raw_atomic_update_asm(volatile int *ptr, int value);
18asmlinkage int __raw_atomic_clear_asm(volatile int *ptr, int value);
19asmlinkage int __raw_atomic_set_asm(volatile int *ptr, int value);
20asmlinkage int __raw_atomic_xor_asm(volatile int *ptr, int value);
21asmlinkage int __raw_atomic_test_asm(const volatile int *ptr, int value);
22
23#define atomic_read(v) __raw_uncached_fetch_asm(&(v)->counter)
24
25#define atomic_add_return(i, v) __raw_atomic_update_asm(&(v)->counter, i)
26#define atomic_sub_return(i, v) __raw_atomic_update_asm(&(v)->counter, -(i))
27
28#define atomic_clear_mask(m, v) __raw_atomic_clear_asm(&(v)->counter, m)
29#define atomic_set_mask(m, v) __raw_atomic_set_asm(&(v)->counter, m)
30
31#endif
32
33#include <asm-generic/atomic.h>
34
35#endif