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Diffstat (limited to 'arch/parisc/include/asm/spinlock.h')
-rw-r--r--arch/parisc/include/asm/spinlock.h64
1 files changed, 32 insertions, 32 deletions
diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index fae03e136fa8..74036f436a3b 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -5,17 +5,17 @@
5#include <asm/processor.h> 5#include <asm/processor.h>
6#include <asm/spinlock_types.h> 6#include <asm/spinlock_types.h>
7 7
8static inline int __raw_spin_is_locked(raw_spinlock_t *x) 8static inline int arch_spin_is_locked(arch_spinlock_t *x)
9{ 9{
10 volatile unsigned int *a = __ldcw_align(x); 10 volatile unsigned int *a = __ldcw_align(x);
11 return *a == 0; 11 return *a == 0;
12} 12}
13 13
14#define __raw_spin_lock(lock) __raw_spin_lock_flags(lock, 0) 14#define arch_spin_lock(lock) arch_spin_lock_flags(lock, 0)
15#define __raw_spin_unlock_wait(x) \ 15#define arch_spin_unlock_wait(x) \
16 do { cpu_relax(); } while (__raw_spin_is_locked(x)) 16 do { cpu_relax(); } while (arch_spin_is_locked(x))
17 17
18static inline void __raw_spin_lock_flags(raw_spinlock_t *x, 18static inline void arch_spin_lock_flags(arch_spinlock_t *x,
19 unsigned long flags) 19 unsigned long flags)
20{ 20{
21 volatile unsigned int *a; 21 volatile unsigned int *a;
@@ -33,7 +33,7 @@ static inline void __raw_spin_lock_flags(raw_spinlock_t *x,
33 mb(); 33 mb();
34} 34}
35 35
36static inline void __raw_spin_unlock(raw_spinlock_t *x) 36static inline void arch_spin_unlock(arch_spinlock_t *x)
37{ 37{
38 volatile unsigned int *a; 38 volatile unsigned int *a;
39 mb(); 39 mb();
@@ -42,7 +42,7 @@ static inline void __raw_spin_unlock(raw_spinlock_t *x)
42 mb(); 42 mb();
43} 43}
44 44
45static inline int __raw_spin_trylock(raw_spinlock_t *x) 45static inline int arch_spin_trylock(arch_spinlock_t *x)
46{ 46{
47 volatile unsigned int *a; 47 volatile unsigned int *a;
48 int ret; 48 int ret;
@@ -69,38 +69,38 @@ static inline int __raw_spin_trylock(raw_spinlock_t *x)
69 69
70/* Note that we have to ensure interrupts are disabled in case we're 70/* Note that we have to ensure interrupts are disabled in case we're
71 * interrupted by some other code that wants to grab the same read lock */ 71 * interrupted by some other code that wants to grab the same read lock */
72static __inline__ void __raw_read_lock(raw_rwlock_t *rw) 72static __inline__ void arch_read_lock(arch_rwlock_t *rw)
73{ 73{
74 unsigned long flags; 74 unsigned long flags;
75 local_irq_save(flags); 75 local_irq_save(flags);
76 __raw_spin_lock_flags(&rw->lock, flags); 76 arch_spin_lock_flags(&rw->lock, flags);
77 rw->counter++; 77 rw->counter++;
78 __raw_spin_unlock(&rw->lock); 78 arch_spin_unlock(&rw->lock);
79 local_irq_restore(flags); 79 local_irq_restore(flags);
80} 80}
81 81
82/* Note that we have to ensure interrupts are disabled in case we're 82/* Note that we have to ensure interrupts are disabled in case we're
83 * interrupted by some other code that wants to grab the same read lock */ 83 * interrupted by some other code that wants to grab the same read lock */
84static __inline__ void __raw_read_unlock(raw_rwlock_t *rw) 84static __inline__ void arch_read_unlock(arch_rwlock_t *rw)
85{ 85{
86 unsigned long flags; 86 unsigned long flags;
87 local_irq_save(flags); 87 local_irq_save(flags);
88 __raw_spin_lock_flags(&rw->lock, flags); 88 arch_spin_lock_flags(&rw->lock, flags);
89 rw->counter--; 89 rw->counter--;
90 __raw_spin_unlock(&rw->lock); 90 arch_spin_unlock(&rw->lock);
91 local_irq_restore(flags); 91 local_irq_restore(flags);
92} 92}
93 93
94/* Note that we have to ensure interrupts are disabled in case we're 94/* Note that we have to ensure interrupts are disabled in case we're
95 * interrupted by some other code that wants to grab the same read lock */ 95 * interrupted by some other code that wants to grab the same read lock */
96static __inline__ int __raw_read_trylock(raw_rwlock_t *rw) 96static __inline__ int arch_read_trylock(arch_rwlock_t *rw)
97{ 97{
98 unsigned long flags; 98 unsigned long flags;
99 retry: 99 retry:
100 local_irq_save(flags); 100 local_irq_save(flags);
101 if (__raw_spin_trylock(&rw->lock)) { 101 if (arch_spin_trylock(&rw->lock)) {
102 rw->counter++; 102 rw->counter++;
103 __raw_spin_unlock(&rw->lock); 103 arch_spin_unlock(&rw->lock);
104 local_irq_restore(flags); 104 local_irq_restore(flags);
105 return 1; 105 return 1;
106 } 106 }
@@ -111,7 +111,7 @@ static __inline__ int __raw_read_trylock(raw_rwlock_t *rw)
111 return 0; 111 return 0;
112 112
113 /* Wait until we have a realistic chance at the lock */ 113 /* Wait until we have a realistic chance at the lock */
114 while (__raw_spin_is_locked(&rw->lock) && rw->counter >= 0) 114 while (arch_spin_is_locked(&rw->lock) && rw->counter >= 0)
115 cpu_relax(); 115 cpu_relax();
116 116
117 goto retry; 117 goto retry;
@@ -119,15 +119,15 @@ static __inline__ int __raw_read_trylock(raw_rwlock_t *rw)
119 119
120/* Note that we have to ensure interrupts are disabled in case we're 120/* Note that we have to ensure interrupts are disabled in case we're
121 * interrupted by some other code that wants to read_trylock() this lock */ 121 * interrupted by some other code that wants to read_trylock() this lock */
122static __inline__ void __raw_write_lock(raw_rwlock_t *rw) 122static __inline__ void arch_write_lock(arch_rwlock_t *rw)
123{ 123{
124 unsigned long flags; 124 unsigned long flags;
125retry: 125retry:
126 local_irq_save(flags); 126 local_irq_save(flags);
127 __raw_spin_lock_flags(&rw->lock, flags); 127 arch_spin_lock_flags(&rw->lock, flags);
128 128
129 if (rw->counter != 0) { 129 if (rw->counter != 0) {
130 __raw_spin_unlock(&rw->lock); 130 arch_spin_unlock(&rw->lock);
131 local_irq_restore(flags); 131 local_irq_restore(flags);
132 132
133 while (rw->counter != 0) 133 while (rw->counter != 0)
@@ -141,27 +141,27 @@ retry:
141 local_irq_restore(flags); 141 local_irq_restore(flags);
142} 142}
143 143
144static __inline__ void __raw_write_unlock(raw_rwlock_t *rw) 144static __inline__ void arch_write_unlock(arch_rwlock_t *rw)
145{ 145{
146 rw->counter = 0; 146 rw->counter = 0;
147 __raw_spin_unlock(&rw->lock); 147 arch_spin_unlock(&rw->lock);
148} 148}
149 149
150/* Note that we have to ensure interrupts are disabled in case we're 150/* Note that we have to ensure interrupts are disabled in case we're
151 * interrupted by some other code that wants to read_trylock() this lock */ 151 * interrupted by some other code that wants to read_trylock() this lock */
152static __inline__ int __raw_write_trylock(raw_rwlock_t *rw) 152static __inline__ int arch_write_trylock(arch_rwlock_t *rw)
153{ 153{
154 unsigned long flags; 154 unsigned long flags;
155 int result = 0; 155 int result = 0;
156 156
157 local_irq_save(flags); 157 local_irq_save(flags);
158 if (__raw_spin_trylock(&rw->lock)) { 158 if (arch_spin_trylock(&rw->lock)) {
159 if (rw->counter == 0) { 159 if (rw->counter == 0) {
160 rw->counter = -1; 160 rw->counter = -1;
161 result = 1; 161 result = 1;
162 } else { 162 } else {
163 /* Read-locked. Oh well. */ 163 /* Read-locked. Oh well. */
164 __raw_spin_unlock(&rw->lock); 164 arch_spin_unlock(&rw->lock);
165 } 165 }
166 } 166 }
167 local_irq_restore(flags); 167 local_irq_restore(flags);
@@ -173,7 +173,7 @@ static __inline__ int __raw_write_trylock(raw_rwlock_t *rw)
173 * read_can_lock - would read_trylock() succeed? 173 * read_can_lock - would read_trylock() succeed?
174 * @lock: the rwlock in question. 174 * @lock: the rwlock in question.
175 */ 175 */
176static __inline__ int __raw_read_can_lock(raw_rwlock_t *rw) 176static __inline__ int arch_read_can_lock(arch_rwlock_t *rw)
177{ 177{
178 return rw->counter >= 0; 178 return rw->counter >= 0;
179} 179}
@@ -182,16 +182,16 @@ static __inline__ int __raw_read_can_lock(raw_rwlock_t *rw)
182 * write_can_lock - would write_trylock() succeed? 182 * write_can_lock - would write_trylock() succeed?
183 * @lock: the rwlock in question. 183 * @lock: the rwlock in question.
184 */ 184 */
185static __inline__ int __raw_write_can_lock(raw_rwlock_t *rw) 185static __inline__ int arch_write_can_lock(arch_rwlock_t *rw)
186{ 186{
187 return !rw->counter; 187 return !rw->counter;
188} 188}
189 189
190#define __raw_read_lock_flags(lock, flags) __raw_read_lock(lock) 190#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
191#define __raw_write_lock_flags(lock, flags) __raw_write_lock(lock) 191#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
192 192
193#define _raw_spin_relax(lock) cpu_relax() 193#define arch_spin_relax(lock) cpu_relax()
194#define _raw_read_relax(lock) cpu_relax() 194#define arch_read_relax(lock) cpu_relax()
195#define _raw_write_relax(lock) cpu_relax() 195#define arch_write_relax(lock) cpu_relax()
196 196
197#endif /* __ASM_SPINLOCK_H */ 197#endif /* __ASM_SPINLOCK_H */