1 files changed, 0 insertions, 165 deletions
diff --git a/arch/metag/include/asm/spinlock_lock1.h b/arch/metag/include/asm/spinlock_lock1.h
deleted file mode 100644
index c0bd81b..0000000
--- a/arch/metag/include/asm/spinlock_lock1.h
+++ /dev/null
@@ -1,165 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_SPINLOCK_LOCK1_H
-#define __ASM_SPINLOCK_LOCK1_H
-
-#include <asm/bug.h>
-#include <asm/global_lock.h>
-
-static inline int arch_spin_is_locked(arch_spinlock_t *lock)
-{
-	int ret;
-
-	barrier();
-	ret = lock->lock;
-	WARN_ON(ret != 0 && ret != 1);
-	return ret;
-}
-
-static inline void arch_spin_lock(arch_spinlock_t *lock)
-{
-	unsigned int we_won = 0;
-	unsigned long flags;
-
-again:
-	__global_lock1(flags);
-	if (lock->lock == 0) {
-		fence();
-		lock->lock = 1;
-		we_won = 1;
-	}
-	__global_unlock1(flags);
-	if (we_won == 0)
-		goto again;
-	WARN_ON(lock->lock != 1);
-}
-
-/* Returns 0 if failed to acquire lock */
-static inline int arch_spin_trylock(arch_spinlock_t *lock)
-{
-	unsigned long flags;
-	unsigned int ret;
-
-	__global_lock1(flags);
-	ret = lock->lock;
-	if (ret == 0) {
-		fence();
-		lock->lock = 1;
-	}
-	__global_unlock1(flags);
-	return (ret == 0);
-}
-
-static inline void arch_spin_unlock(arch_spinlock_t *lock)
-{
-	barrier();
-	WARN_ON(!lock->lock);
-	lock->lock = 0;
-}
-
-/*
- * RWLOCKS
- *
- *
- * Write locks are easy - we just set bit 31.  When unlocking, we can
- * just write zero since the lock is exclusively held.
- */
-
-static inline void arch_write_lock(arch_rwlock_t *rw)
-{
-	unsigned long flags;
-	unsigned int we_won = 0;
-
-again:
-	__global_lock1(flags);
-	if (rw->lock == 0) {
-		fence();
-		rw->lock = 0x80000000;
-		we_won = 1;
-	}
-	__global_unlock1(flags);
-	if (we_won == 0)
-		goto again;
-	WARN_ON(rw->lock != 0x80000000);
-}
-
-static inline int arch_write_trylock(arch_rwlock_t *rw)
-{
-	unsigned long flags;
-	unsigned int ret;
-
-	__global_lock1(flags);
-	ret = rw->lock;
-	if (ret == 0) {
-		fence();
-		rw->lock = 0x80000000;
-	}
-	__global_unlock1(flags);
-
-	return (ret == 0);
-}
-
-static inline void arch_write_unlock(arch_rwlock_t *rw)
-{
-	barrier();
-	WARN_ON(rw->lock != 0x80000000);
-	rw->lock = 0;
-}
-
-/*
- * Read locks are a bit more hairy:
- *  - Exclusively load the lock value.
- *  - Increment it.
- *  - Store new lock value if positive, and we still own this location.
- *    If the value is negative, we've already failed.
- *  - If we failed to store the value, we want a negative result.
- *  - If we failed, try again.
- * Unlocking is similarly hairy.  We may have multiple read locks
- * currently active.  However, we know we won't have any write
- * locks.
- */
-static inline void arch_read_lock(arch_rwlock_t *rw)
-{
-	unsigned long flags;
-	unsigned int we_won = 0, ret;
-
-again:
-	__global_lock1(flags);
-	ret = rw->lock;
-	if (ret < 0x80000000) {
-		fence();
-		rw->lock = ret + 1;
-		we_won = 1;
-	}
-	__global_unlock1(flags);
-	if (!we_won)
-		goto again;
-}
-
-static inline void arch_read_unlock(arch_rwlock_t *rw)
-{
-	unsigned long flags;
-	unsigned int ret;
-
-	__global_lock1(flags);
-	fence();
-	ret = rw->lock--;
-	__global_unlock1(flags);
-	WARN_ON(ret == 0);
-}
-
-static inline int arch_read_trylock(arch_rwlock_t *rw)
-{
-	unsigned long flags;
-	unsigned int ret;
-
-	__global_lock1(flags);
-	ret = rw->lock;
-	if (ret < 0x80000000) {
-		fence();
-		rw->lock = ret + 1;
-	}
-	__global_unlock1(flags);
-	return (ret < 0x80000000);
-}
-
-#endif /* __ASM_SPINLOCK_LOCK1_H */