1 files changed, 0 insertions, 109 deletions
diff --git a/arch/tile/include/asm/spinlock_32.h b/arch/tile/include/asm/spinlock_32.h
deleted file mode 100644
index fb5313d77315..000000000000
--- a/arch/tile/include/asm/spinlock_32.h
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright 2010 Tilera Corporation. All Rights Reserved.
- *
- *   This program is free software; you can redistribute it and/or
- *   modify it under the terms of the GNU General Public License
- *   as published by the Free Software Foundation, version 2.
- *
- *   This program is distributed in the hope that it will be useful, but
- *   WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- *   NON INFRINGEMENT.  See the GNU General Public License for
- *   more details.
- *
- * 32-bit SMP spinlocks.
- */
-
-#ifndef _ASM_TILE_SPINLOCK_32_H
-#define _ASM_TILE_SPINLOCK_32_H
-
-#include <linux/atomic.h>
-#include <asm/page.h>
-#include <linux/compiler.h>
-
-/*
- * We only use even ticket numbers so the '1' inserted by a tns is
- * an unambiguous "ticket is busy" flag.
- */
-#define TICKET_QUANTUM 2
-
-
-/*
- * SMP ticket spinlocks, allowing only a single CPU anywhere
- *
- * (the type definitions are in asm/spinlock_types.h)
- */
-static inline int arch_spin_is_locked(arch_spinlock_t *lock)
-{
-	/*
-	 * Note that even if a new ticket is in the process of being
-	 * acquired, so lock->next_ticket is 1, it's still reasonable
-	 * to claim the lock is held, since it will be momentarily
-	 * if not already.  There's no need to wait for a "valid"
-	 * lock->next_ticket to become available.
-	 * Use READ_ONCE() to ensure that calling this in a loop is OK.
-	 */
-	int curr = READ_ONCE(lock->current_ticket);
-	int next = READ_ONCE(lock->next_ticket);
-
-	return next != curr;
-}
-
-void arch_spin_lock(arch_spinlock_t *lock);
-
-int arch_spin_trylock(arch_spinlock_t *lock);
-
-static inline void arch_spin_unlock(arch_spinlock_t *lock)
-{
-	/* For efficiency, overlap fetching the old ticket with the wmb(). */
-	int old_ticket = lock->current_ticket;
-	wmb();  /* guarantee anything modified under the lock is visible */
-	lock->current_ticket = old_ticket + TICKET_QUANTUM;
-}
-
-/*
- * Read-write spinlocks, allowing multiple readers
- * but only one writer.
- *
- * We use a "tns/store-back" technique on a single word to manage
- * the lock state, looping around to retry if the tns returns 1.
- */
-
-/* Internal layout of the word; do not use. */
-#define _WR_NEXT_SHIFT	8
-#define _WR_CURR_SHIFT  16
-#define _WR_WIDTH       8
-#define _RD_COUNT_SHIFT 24
-#define _RD_COUNT_WIDTH 8
-
-/**
- * arch_read_lock() - acquire a read lock.
- */
-void arch_read_lock(arch_rwlock_t *rwlock);
-
-/**
- * arch_write_lock() - acquire a write lock.
- */
-void arch_write_lock(arch_rwlock_t *rwlock);
-
-/**
- * arch_read_trylock() - try to acquire a read lock.
- */
-int arch_read_trylock(arch_rwlock_t *rwlock);
-
-/**
- * arch_write_trylock() - try to acquire a write lock.
- */
-int arch_write_trylock(arch_rwlock_t *rwlock);
-
-/**
- * arch_read_unlock() - release a read lock.
- */
-void arch_read_unlock(arch_rwlock_t *rwlock);
-
-/**
- * arch_write_unlock() - release a write lock.
- */
-void arch_write_unlock(arch_rwlock_t *rwlock);
-
-#endif /* _ASM_TILE_SPINLOCK_32_H */