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15#ifndef BOOT_BITOPS_H
16#define BOOT_BITOPS_H
17#define _LINUX_BITOPS_H
18
19static inline int constant_test_bit(int nr, const void *addr)
20{
21 const u32 *p = (const u32 *)addr;
22 return ((1UL << (nr & 31)) & (p[nr >> 5])) != 0;
23}
24static inline int variable_test_bit(int nr, const void *addr)
25{
26 u8 v;
27 const u32 *p = (const u32 *)addr;
28
29 asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
30 return v;
31}
32
33#define test_bit(nr,addr) \
34(__builtin_constant_p(nr) ? \
35 constant_test_bit((nr),(addr)) : \
36 variable_test_bit((nr),(addr)))
37
38static inline void set_bit(int nr, void *addr)
39{
40 asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr));
41}
42
43#endif
44