1
2#ifndef _ASM_GENERIC_BITOPS_NON_ATOMIC_H_
3#define _ASM_GENERIC_BITOPS_NON_ATOMIC_H_
4
5#include <asm/types.h>
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15
16static __always_inline void
17arch___set_bit(unsigned int nr, volatile unsigned long *addr)
18{
19 unsigned long mask = BIT_MASK(nr);
20 unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
21
22 *p |= mask;
23}
24#define __set_bit arch___set_bit
25
26static __always_inline void
27arch___clear_bit(unsigned int nr, volatile unsigned long *addr)
28{
29 unsigned long mask = BIT_MASK(nr);
30 unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
31
32 *p &= ~mask;
33}
34#define __clear_bit arch___clear_bit
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44
45static __always_inline
46void arch___change_bit(unsigned int nr, volatile unsigned long *addr)
47{
48 unsigned long mask = BIT_MASK(nr);
49 unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
50
51 *p ^= mask;
52}
53#define __change_bit arch___change_bit
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63
64static __always_inline int
65arch___test_and_set_bit(unsigned int nr, volatile unsigned long *addr)
66{
67 unsigned long mask = BIT_MASK(nr);
68 unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
69 unsigned long old = *p;
70
71 *p = old | mask;
72 return (old & mask) != 0;
73}
74#define __test_and_set_bit arch___test_and_set_bit
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84
85static __always_inline int
86arch___test_and_clear_bit(unsigned int nr, volatile unsigned long *addr)
87{
88 unsigned long mask = BIT_MASK(nr);
89 unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
90 unsigned long old = *p;
91
92 *p = old & ~mask;
93 return (old & mask) != 0;
94}
95#define __test_and_clear_bit arch___test_and_clear_bit
96
97
98static __always_inline int
99arch___test_and_change_bit(unsigned int nr, volatile unsigned long *addr)
100{
101 unsigned long mask = BIT_MASK(nr);
102 unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
103 unsigned long old = *p;
104
105 *p = old ^ mask;
106 return (old & mask) != 0;
107}
108#define __test_and_change_bit arch___test_and_change_bit
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114
115static __always_inline int
116arch_test_bit(unsigned int nr, const volatile unsigned long *addr)
117{
118 return 1UL & (addr[BIT_WORD(nr)] >> (nr & (BITS_PER_LONG-1)));
119}
120#define test_bit arch_test_bit
121
122#endif
123