File: atomic.h

package info (click to toggle)
linux 3.16.51-3
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-updates
  • size: 755,292 kB
  • sloc: ansic: 12,235,573; asm: 277,597; perl: 53,071; xml: 47,771; makefile: 30,539; sh: 7,977; python: 6,697; cpp: 5,131; yacc: 4,254; lex: 2,215; awk: 741; pascal: 231; lisp: 218; sed: 30
file content (37 lines) | stat: -rw-r--r-- 1,105 bytes parent folder | download | duplicates (18)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
/*
 * Copyright 2004-2011 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#ifndef __ARCH_BLACKFIN_ATOMIC__
#define __ARCH_BLACKFIN_ATOMIC__

#include <asm/cmpxchg.h>

#ifdef CONFIG_SMP

#include <asm/barrier.h>
#include <linux/linkage.h>
#include <linux/types.h>

asmlinkage int __raw_uncached_fetch_asm(const volatile int *ptr);
asmlinkage int __raw_atomic_update_asm(volatile int *ptr, int value);
asmlinkage int __raw_atomic_clear_asm(volatile int *ptr, int value);
asmlinkage int __raw_atomic_set_asm(volatile int *ptr, int value);
asmlinkage int __raw_atomic_xor_asm(volatile int *ptr, int value);
asmlinkage int __raw_atomic_test_asm(const volatile int *ptr, int value);

#define atomic_read(v) __raw_uncached_fetch_asm(&(v)->counter)

#define atomic_add_return(i, v) __raw_atomic_update_asm(&(v)->counter, i)
#define atomic_sub_return(i, v) __raw_atomic_update_asm(&(v)->counter, -(i))

#define atomic_clear_mask(m, v) __raw_atomic_clear_asm(&(v)->counter, m)
#define atomic_set_mask(m, v)   __raw_atomic_set_asm(&(v)->counter, m)

#endif

#include <asm-generic/atomic.h>

#endif