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f5e706ad SR |
1 | /* |
2 | * bitops.h: Bit string operations on the V9. | |
3 | * | |
4 | * Copyright 1996, 1997 David S. Miller (davem@caip.rutgers.edu) | |
5 | */ | |
6 | ||
7 | #ifndef _SPARC64_BITOPS_H | |
8 | #define _SPARC64_BITOPS_H | |
9 | ||
10 | #ifndef _LINUX_BITOPS_H | |
11 | #error only <linux/bitops.h> can be included directly | |
12 | #endif | |
13 | ||
14 | #include <linux/compiler.h> | |
15 | #include <asm/byteorder.h> | |
16 | ||
17 | extern int test_and_set_bit(unsigned long nr, volatile unsigned long *addr); | |
18 | extern int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr); | |
19 | extern int test_and_change_bit(unsigned long nr, volatile unsigned long *addr); | |
20 | extern void set_bit(unsigned long nr, volatile unsigned long *addr); | |
21 | extern void clear_bit(unsigned long nr, volatile unsigned long *addr); | |
22 | extern void change_bit(unsigned long nr, volatile unsigned long *addr); | |
23 | ||
24 | #include <asm-generic/bitops/non-atomic.h> | |
25 | ||
f5e706ad SR |
26 | #define smp_mb__before_clear_bit() barrier() |
27 | #define smp_mb__after_clear_bit() barrier() | |
f5e706ad SR |
28 | |
29 | #include <asm-generic/bitops/ffz.h> | |
30 | #include <asm-generic/bitops/__ffs.h> | |
31 | #include <asm-generic/bitops/fls.h> | |
32 | #include <asm-generic/bitops/__fls.h> | |
33 | #include <asm-generic/bitops/fls64.h> | |
34 | ||
35 | #ifdef __KERNEL__ | |
36 | ||
37 | #include <asm-generic/bitops/sched.h> | |
38 | #include <asm-generic/bitops/ffs.h> | |
39 | ||
40 | /* | |
41 | * hweightN: returns the hamming weight (i.e. the number | |
42 | * of bits set) of a N-bit word | |
43 | */ | |
44 | ||
45 | #ifdef ULTRA_HAS_POPULATION_COUNT | |
46 | ||
1527bc8b | 47 | static inline unsigned int __arch_hweight64(unsigned long w) |
f5e706ad SR |
48 | { |
49 | unsigned int res; | |
50 | ||
51 | __asm__ ("popc %1,%0" : "=r" (res) : "r" (w)); | |
52 | return res; | |
53 | } | |
54 | ||
1527bc8b | 55 | static inline unsigned int __arch_hweight32(unsigned int w) |
f5e706ad SR |
56 | { |
57 | unsigned int res; | |
58 | ||
59 | __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xffffffff)); | |
60 | return res; | |
61 | } | |
62 | ||
1527bc8b | 63 | static inline unsigned int __arch_hweight16(unsigned int w) |
f5e706ad SR |
64 | { |
65 | unsigned int res; | |
66 | ||
67 | __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xffff)); | |
68 | return res; | |
69 | } | |
70 | ||
1527bc8b | 71 | static inline unsigned int __arch_hweight8(unsigned int w) |
f5e706ad SR |
72 | { |
73 | unsigned int res; | |
74 | ||
75 | __asm__ ("popc %1,%0" : "=r" (res) : "r" (w & 0xff)); | |
76 | return res; | |
77 | } | |
78 | ||
79 | #else | |
80 | ||
1527bc8b | 81 | #include <asm-generic/bitops/arch_hweight.h> |
f5e706ad SR |
82 | |
83 | #endif | |
1527bc8b | 84 | #include <asm-generic/bitops/const_hweight.h> |
f5e706ad SR |
85 | #include <asm-generic/bitops/lock.h> |
86 | #endif /* __KERNEL__ */ | |
87 | ||
88 | #include <asm-generic/bitops/find.h> | |
89 | ||
90 | #ifdef __KERNEL__ | |
91 | ||
861b5ae7 | 92 | #include <asm-generic/bitops/le.h> |
f5e706ad SR |
93 | #include <asm-generic/bitops/ext2-non-atomic.h> |
94 | ||
95 | #define ext2_set_bit_atomic(lock,nr,addr) \ | |
96 | test_and_set_bit((nr) ^ 0x38,(unsigned long *)(addr)) | |
97 | #define ext2_clear_bit_atomic(lock,nr,addr) \ | |
98 | test_and_clear_bit((nr) ^ 0x38,(unsigned long *)(addr)) | |
99 | ||
100 | #include <asm-generic/bitops/minix.h> | |
101 | ||
102 | #endif /* __KERNEL__ */ | |
103 | ||
104 | #endif /* defined(_SPARC64_BITOPS_H) */ |