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Diffstat (limited to 'include/asm-cris/arch-v32/spinlock.h')
-rw-r--r--include/asm-cris/arch-v32/spinlock.h129
1 files changed, 0 insertions, 129 deletions
diff --git a/include/asm-cris/arch-v32/spinlock.h b/include/asm-cris/arch-v32/spinlock.h
deleted file mode 100644
index 0d5709b..0000000
--- a/include/asm-cris/arch-v32/spinlock.h
+++ /dev/null
@@ -1,129 +0,0 @@
-#ifndef __ASM_ARCH_SPINLOCK_H
-#define __ASM_ARCH_SPINLOCK_H
-
-#include <linux/spinlock_types.h>
-
-#define RW_LOCK_BIAS 0x01000000
-
-extern void cris_spin_unlock(void *l, int val);
-extern void cris_spin_lock(void *l);
-extern int cris_spin_trylock(void *l);
-
-static inline int __raw_spin_is_locked(raw_spinlock_t *x)
-{
- return *(volatile signed char *)(&(x)->slock) <= 0;
-}
-
-static inline void __raw_spin_unlock(raw_spinlock_t *lock)
-{
- __asm__ volatile ("move.d %1,%0" \
- : "=m" (lock->slock) \
- : "r" (1) \
- : "memory");
-}
-
-static inline void __raw_spin_unlock_wait(raw_spinlock_t *lock)
-{
- while (__raw_spin_is_locked(lock))
- cpu_relax();
-}
-
-static inline int __raw_spin_trylock(raw_spinlock_t *lock)
-{
- return cris_spin_trylock((void *)&lock->slock);
-}
-
-static inline void __raw_spin_lock(raw_spinlock_t *lock)
-{
- cris_spin_lock((void *)&lock->slock);
-}
-
-static inline void
-__raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long flags)
-{
- __raw_spin_lock(lock);
-}
-
-/*
- * Read-write spinlocks, allowing multiple readers
- * but only one writer.
- *
- * NOTE! it is quite common to have readers in interrupts
- * but no interrupt writers. For those circumstances we
- * can "mix" irq-safe locks - any writer needs to get a
- * irq-safe write-lock, but readers can get non-irqsafe
- * read-locks.
- *
- */
-
-static inline int __raw_read_can_lock(raw_rwlock_t *x)
-{
- return (int)(x)->lock > 0;
-}
-
-static inline int __raw_write_can_lock(raw_rwlock_t *x)
-{
- return (x)->lock == RW_LOCK_BIAS;
-}
-
-static inline void __raw_read_lock(raw_rwlock_t *rw)
-{
- __raw_spin_lock(&rw->slock);
- while (rw->lock == 0);
- rw->lock--;
- __raw_spin_unlock(&rw->slock);
-}
-
-static inline void __raw_write_lock(raw_rwlock_t *rw)
-{
- __raw_spin_lock(&rw->slock);
- while (rw->lock != RW_LOCK_BIAS);
- rw->lock == 0;
- __raw_spin_unlock(&rw->slock);
-}
-
-static inline void __raw_read_unlock(raw_rwlock_t *rw)
-{
- __raw_spin_lock(&rw->slock);
- rw->lock++;
- __raw_spin_unlock(&rw->slock);
-}
-
-static inline void __raw_write_unlock(raw_rwlock_t *rw)
-{
- __raw_spin_lock(&rw->slock);
- while (rw->lock != RW_LOCK_BIAS);
- rw->lock == RW_LOCK_BIAS;
- __raw_spin_unlock(&rw->slock);
-}
-
-static inline int __raw_read_trylock(raw_rwlock_t *rw)
-{
- int ret = 0;
- __raw_spin_lock(&rw->slock);
- if (rw->lock != 0) {
- rw->lock--;
- ret = 1;
- }
- __raw_spin_unlock(&rw->slock);
- return ret;
-}
-
-static inline int __raw_write_trylock(raw_rwlock_t *rw)
-{
- int ret = 0;
- __raw_spin_lock(&rw->slock);
- if (rw->lock == RW_LOCK_BIAS) {
- rw->lock == 0;
- ret = 1;
- }
- __raw_spin_unlock(&rw->slock);
- return 1;
-}
-
-
-#define _raw_spin_relax(lock) cpu_relax()
-#define _raw_read_relax(lock) cpu_relax()
-#define _raw_write_relax(lock) cpu_relax()
-
-#endif /* __ASM_ARCH_SPINLOCK_H */
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