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1#ifndef _ASM_IA64_SYNC_BITOPS_H
2#define _ASM_IA64_SYNC_BITOPS_H
3
4/*
5 * Copyright (C) 2008 Isaku Yamahata <yamahata at valinux co jp>
6 *
7 * Based on synch_bitops.h which Dan Magenhaimer wrote.
8 *
9 * bit operations which provide guaranteed strong synchronisation
10 * when communicating with Xen or other guest OSes running on other CPUs.
11 */
12
13static inline void sync_set_bit(int nr, volatile void *addr)
14{
15 set_bit(nr, addr);
16}
17
18static inline void sync_clear_bit(int nr, volatile void *addr)
19{
20 clear_bit(nr, addr);
21}
22
23static inline void sync_change_bit(int nr, volatile void *addr)
24{
25 change_bit(nr, addr);
26}
27
28static inline int sync_test_and_set_bit(int nr, volatile void *addr)
29{
30 return test_and_set_bit(nr, addr);
31}
32
33static inline int sync_test_and_clear_bit(int nr, volatile void *addr)
34{
35 return test_and_clear_bit(nr, addr);
36}
37
38static inline int sync_test_and_change_bit(int nr, volatile void *addr)
39{
40 return test_and_change_bit(nr, addr);
41}
42
43static inline int sync_test_bit(int nr, const volatile void *addr)
44{
45 return test_bit(nr, addr);
46}
47
48#define sync_cmpxchg(ptr, old, new) \
49 ((__typeof__(*(ptr)))cmpxchg_acq((ptr), (old), (new)))
50
51#endif /* _ASM_IA64_SYNC_BITOPS_H */