diff options
author | David S. Miller <davem@davemloft.net> | 2005-07-24 22:35:28 -0400 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2005-07-24 22:35:28 -0400 |
commit | 6593eaed814d50214d6056c683d52ac63153730e (patch) | |
tree | b5e803f1217dd26484a15816e84402d8d3ce8a84 /include | |
parent | 4b502421aac89c8d4e61ecc89a70065a33305a0b (diff) |
[SPARC64]: Non-atomic bitops do not need volatile operations
Noticed this while comparing sparc64's bitops.h to ppc64's.
We can cast the volatile memory argument to be non-volatile.
While we're here, __inline__ --> inline.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r-- | include/asm-sparc64/bitops.h | 56 |
1 files changed, 28 insertions, 28 deletions
diff --git a/include/asm-sparc64/bitops.h b/include/asm-sparc64/bitops.h index 9d722dc8cca3..9c5e71970287 100644 --- a/include/asm-sparc64/bitops.h +++ b/include/asm-sparc64/bitops.h | |||
@@ -20,52 +20,52 @@ extern void change_bit(unsigned long nr, volatile unsigned long *addr); | |||
20 | 20 | ||
21 | /* "non-atomic" versions... */ | 21 | /* "non-atomic" versions... */ |
22 | 22 | ||
23 | static __inline__ void __set_bit(int nr, volatile unsigned long *addr) | 23 | static inline void __set_bit(int nr, volatile unsigned long *addr) |
24 | { | 24 | { |
25 | volatile unsigned long *m = addr + (nr >> 6); | 25 | unsigned long *m = ((unsigned long *)addr) + (nr >> 6); |
26 | 26 | ||
27 | *m |= (1UL << (nr & 63)); | 27 | *m |= (1UL << (nr & 63)); |
28 | } | 28 | } |
29 | 29 | ||
30 | static __inline__ void __clear_bit(int nr, volatile unsigned long *addr) | 30 | static inline void __clear_bit(int nr, volatile unsigned long *addr) |
31 | { | 31 | { |
32 | volatile unsigned long *m = addr + (nr >> 6); | 32 | unsigned long *m = ((unsigned long *)addr) + (nr >> 6); |
33 | 33 | ||
34 | *m &= ~(1UL << (nr & 63)); | 34 | *m &= ~(1UL << (nr & 63)); |
35 | } | 35 | } |
36 | 36 | ||
37 | static __inline__ void __change_bit(int nr, volatile unsigned long *addr) | 37 | static inline void __change_bit(int nr, volatile unsigned long *addr) |
38 | { | 38 | { |
39 | volatile unsigned long *m = addr + (nr >> 6); | 39 | unsigned long *m = ((unsigned long *)addr) + (nr >> 6); |
40 | 40 | ||
41 | *m ^= (1UL << (nr & 63)); | 41 | *m ^= (1UL << (nr & 63)); |
42 | } | 42 | } |
43 | 43 | ||
44 | static __inline__ int __test_and_set_bit(int nr, volatile unsigned long *addr) | 44 | static inline int __test_and_set_bit(int nr, volatile unsigned long *addr) |
45 | { | 45 | { |
46 | volatile unsigned long *m = addr + (nr >> 6); | 46 | unsigned long *m = ((unsigned long *)addr) + (nr >> 6); |
47 | long old = *m; | 47 | unsigned long old = *m; |
48 | long mask = (1UL << (nr & 63)); | 48 | unsigned long mask = (1UL << (nr & 63)); |
49 | 49 | ||
50 | *m = (old | mask); | 50 | *m = (old | mask); |
51 | return ((old & mask) != 0); | 51 | return ((old & mask) != 0); |
52 | } | 52 | } |
53 | 53 | ||
54 | static __inline__ int __test_and_clear_bit(int nr, volatile unsigned long *addr) | 54 | static inline int __test_and_clear_bit(int nr, volatile unsigned long *addr) |
55 | { | 55 | { |
56 | volatile unsigned long *m = addr + (nr >> 6); | 56 | unsigned long *m = ((unsigned long *)addr) + (nr >> 6); |
57 | long old = *m; | 57 | unsigned long old = *m; |
58 | long mask = (1UL << (nr & 63)); | 58 | unsigned long mask = (1UL << (nr & 63)); |
59 | 59 | ||
60 | *m = (old & ~mask); | 60 | *m = (old & ~mask); |
61 | return ((old & mask) != 0); | 61 | return ((old & mask) != 0); |
62 | } | 62 | } |
63 | 63 | ||
64 | static __inline__ int __test_and_change_bit(int nr, volatile unsigned long *addr) | 64 | static inline int __test_and_change_bit(int nr, volatile unsigned long *addr) |
65 | { | 65 | { |
66 | volatile unsigned long *m = addr + (nr >> 6); | 66 | unsigned long *m = ((unsigned long *)addr) + (nr >> 6); |
67 | long old = *m; | 67 | unsigned long old = *m; |
68 | long mask = (1UL << (nr & 63)); | 68 | unsigned long mask = (1UL << (nr & 63)); |
69 | 69 | ||
70 | *m = (old ^ mask); | 70 | *m = (old ^ mask); |
71 | return ((old & mask) != 0); | 71 | return ((old & mask) != 0); |
@@ -79,13 +79,13 @@ static __inline__ int __test_and_change_bit(int nr, volatile unsigned long *addr | |||
79 | #define smp_mb__after_clear_bit() barrier() | 79 | #define smp_mb__after_clear_bit() barrier() |
80 | #endif | 80 | #endif |
81 | 81 | ||
82 | static __inline__ int test_bit(int nr, __const__ volatile unsigned long *addr) | 82 | static inline int test_bit(int nr, __const__ volatile unsigned long *addr) |
83 | { | 83 | { |
84 | return (1UL & ((addr)[nr >> 6] >> (nr & 63))) != 0UL; | 84 | return (1UL & (addr[nr >> 6] >> (nr & 63))) != 0UL; |
85 | } | 85 | } |
86 | 86 | ||
87 | /* The easy/cheese version for now. */ | 87 | /* The easy/cheese version for now. */ |
88 | static __inline__ unsigned long ffz(unsigned long word) | 88 | static inline unsigned long ffz(unsigned long word) |
89 | { | 89 | { |
90 | unsigned long result; | 90 | unsigned long result; |
91 | 91 | ||
@@ -103,7 +103,7 @@ static __inline__ unsigned long ffz(unsigned long word) | |||
103 | * | 103 | * |
104 | * Undefined if no bit exists, so code should check against 0 first. | 104 | * Undefined if no bit exists, so code should check against 0 first. |
105 | */ | 105 | */ |
106 | static __inline__ unsigned long __ffs(unsigned long word) | 106 | static inline unsigned long __ffs(unsigned long word) |
107 | { | 107 | { |
108 | unsigned long result = 0; | 108 | unsigned long result = 0; |
109 | 109 | ||
@@ -144,7 +144,7 @@ static inline int sched_find_first_bit(unsigned long *b) | |||
144 | * the libc and compiler builtin ffs routines, therefore | 144 | * the libc and compiler builtin ffs routines, therefore |
145 | * differs in spirit from the above ffz (man ffs). | 145 | * differs in spirit from the above ffz (man ffs). |
146 | */ | 146 | */ |
147 | static __inline__ int ffs(int x) | 147 | static inline int ffs(int x) |
148 | { | 148 | { |
149 | if (!x) | 149 | if (!x) |
150 | return 0; | 150 | return 0; |
@@ -158,7 +158,7 @@ static __inline__ int ffs(int x) | |||
158 | 158 | ||
159 | #ifdef ULTRA_HAS_POPULATION_COUNT | 159 | #ifdef ULTRA_HAS_POPULATION_COUNT |
160 | 160 | ||
161 | static __inline__ unsigned int hweight64(unsigned long w) | 161 | static inline unsigned int hweight64(unsigned long w) |
162 | { | 162 | { |
163 | unsigned int res; | 163 | unsigned int res; |
164 | 164 | ||
@@ -166,7 +166,7 @@ static __inline__ unsigned int hweight64(unsigned long w) | |||
166 | return res; | 166 | return res; |
167 | } | 167 | } |
168 | 168 | ||
169 | static __inline__ unsigned int hweight32(unsigned int w) | 169 | static inline unsigned int hweight32(unsigned int w) |
170 | { | 170 | { |
171 | unsigned int res; | 171 | unsigned int res; |
172 | 172 | ||
@@ -174,7 +174,7 @@ static __inline__ unsigned int hweight32(unsigned int w) | |||
174 | return res; | 174 | return res; |
175 | } | 175 | } |
176 | 176 | ||
177 | static __inline__ unsigned int hweight16(unsigned int w) | 177 | static inline unsigned int hweight16(unsigned int w) |
178 | { | 178 | { |
179 | unsigned int res; | 179 | unsigned int res; |
180 | 180 | ||
@@ -182,7 +182,7 @@ static __inline__ unsigned int hweight16(unsigned int w) | |||
182 | return res; | 182 | return res; |
183 | } | 183 | } |
184 | 184 | ||
185 | static __inline__ unsigned int hweight8(unsigned int w) | 185 | static inline unsigned int hweight8(unsigned int w) |
186 | { | 186 | { |
187 | unsigned int res; | 187 | unsigned int res; |
188 | 188 | ||
@@ -236,7 +236,7 @@ extern unsigned long find_next_zero_bit(const unsigned long *, | |||
236 | #define test_and_clear_le_bit(nr,addr) \ | 236 | #define test_and_clear_le_bit(nr,addr) \ |
237 | test_and_clear_bit((nr) ^ 0x38, (addr)) | 237 | test_and_clear_bit((nr) ^ 0x38, (addr)) |
238 | 238 | ||
239 | static __inline__ int test_le_bit(int nr, __const__ unsigned long * addr) | 239 | static inline int test_le_bit(int nr, __const__ unsigned long * addr) |
240 | { | 240 | { |
241 | int mask; | 241 | int mask; |
242 | __const__ unsigned char *ADDR = (__const__ unsigned char *) addr; | 242 | __const__ unsigned char *ADDR = (__const__ unsigned char *) addr; |