1 files changed, 0 insertions, 124 deletions
diff --git a/include/asm-sh/spinlock.h b/include/asm-sh/spinlock.h
deleted file mode 100644
index e770b55649e..00000000000
--- a/include/asm-sh/spinlock.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * include/asm-sh/spinlock.h
- *
- * Copyright (C) 2002, 2003 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#ifndef __ASM_SH_SPINLOCK_H
-#define __ASM_SH_SPINLOCK_H
-
-#include <asm/atomic.h>
-
-/*
- * Your basic SMP spinlocks, allowing only a single CPU anywhere
- */
-typedef struct {
-	volatile unsigned long lock;
-#ifdef CONFIG_PREEMPT
-	unsigned int break_lock;
-#endif
-} spinlock_t;
-
-#define SPIN_LOCK_UNLOCKED	(spinlock_t) { 0 }
-
-#define spin_lock_init(x)	do { *(x) = SPIN_LOCK_UNLOCKED; } while(0)
-
-#define spin_is_locked(x)	((x)->lock != 0)
-#define spin_unlock_wait(x)	do { barrier(); } while (spin_is_locked(x))
-#define _raw_spin_lock_flags(lock, flags) _raw_spin_lock(lock)
-
-/*
- * Simple spin lock operations.  There are two variants, one clears IRQ's
- * on the local processor, one does not.
- *
- * We make no fairness assumptions.  They have a cost.
- */
-static inline void _raw_spin_lock(spinlock_t *lock)
-{
-	__asm__ __volatile__ (
-		"1:\n\t"
-		"tas.b @%0\n\t"
-		"bf/s 1b\n\t"
-		"nop\n\t"
-		: "=r" (lock->lock)
-		: "r" (&lock->lock)
-		: "t", "memory"
-	);
-}
-
-static inline void _raw_spin_unlock(spinlock_t *lock)
-{
-	assert_spin_locked(lock);
-
-	lock->lock = 0;
-}
-
-#define _raw_spin_trylock(x) (!test_and_set_bit(0, &(x)->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.
- */
-typedef struct {
-	spinlock_t lock;
-	atomic_t counter;
-#ifdef CONFIG_PREEMPT
-	unsigned int break_lock;
-#endif
-} rwlock_t;
-
-#define RW_LOCK_BIAS		0x01000000
-#define RW_LOCK_UNLOCKED	(rwlock_t) { { 0 }, { RW_LOCK_BIAS } }
-#define rwlock_init(x)		do { *(x) = RW_LOCK_UNLOCKED; } while (0)
-
-static inline void _raw_read_lock(rwlock_t *rw)
-{
-	_raw_spin_lock(&rw->lock);
-
-	atomic_inc(&rw->counter);
-
-	_raw_spin_unlock(&rw->lock);
-}
-
-static inline void _raw_read_unlock(rwlock_t *rw)
-{
-	_raw_spin_lock(&rw->lock);
-
-	atomic_dec(&rw->counter);
-
-	_raw_spin_unlock(&rw->lock);
-}
-
-static inline void _raw_write_lock(rwlock_t *rw)
-{
-	_raw_spin_lock(&rw->lock);
-	atomic_set(&rw->counter, -1);
-}
-
-static inline void _raw_write_unlock(rwlock_t *rw)
-{
-	atomic_set(&rw->counter, 0);
-	_raw_spin_unlock(&rw->lock);
-}
-
-#define _raw_read_trylock(lock) generic_raw_read_trylock(lock)
-
-static inline int _raw_write_trylock(rwlock_t *rw)
-{
-	if (atomic_sub_and_test(RW_LOCK_BIAS, &rw->counter))
-		return 1;
-	
-	atomic_add(RW_LOCK_BIAS, &rw->counter);
-
-	return 0;
-}
-
-#endif /* __ASM_SH_SPINLOCK_H */
-