diff options
author | Paul Mundt <lethal@linux-sh.org> | 2007-11-21 17:28:09 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2008-01-28 13:18:53 +0900 |
commit | c8eef8800f1c693a2de6374b1948c8ea5e0ad75f (patch) | |
tree | b8f66bd608ae5aa22e2ef508ccf0536a137bd127 /include/asm-sh64/semaphore.h | |
parent | e150e7f25f7e3878cf2230193a5c708d99b9971e (diff) |
sh: Purge dead sh64 headers.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh64/semaphore.h')
-rw-r--r-- | include/asm-sh64/semaphore.h | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/include/asm-sh64/semaphore.h b/include/asm-sh64/semaphore.h deleted file mode 100644 index f027cc14b55..00000000000 --- a/include/asm-sh64/semaphore.h +++ /dev/null @@ -1,119 +0,0 @@ -#ifndef __ASM_SH64_SEMAPHORE_H -#define __ASM_SH64_SEMAPHORE_H - -/* - * 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. - * - * include/asm-sh64/semaphore.h - * - * Copyright (C) 2000, 2001 Paolo Alberelli - * - * SMP- and interrupt-safe semaphores. - * - * (C) Copyright 1996 Linus Torvalds - * - * SuperH verison by Niibe Yutaka - * (Currently no asm implementation but generic C code...) - * - */ - -#include <linux/linkage.h> -#include <linux/spinlock.h> -#include <linux/wait.h> -#include <linux/rwsem.h> - -#include <asm/system.h> -#include <asm/atomic.h> - -struct semaphore { - atomic_t count; - int sleepers; - wait_queue_head_t wait; -}; - -#define __SEMAPHORE_INITIALIZER(name, n) \ -{ \ - .count = ATOMIC_INIT(n), \ - .sleepers = 0, \ - .wait = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \ -} - -#define __DECLARE_SEMAPHORE_GENERIC(name,count) \ - struct semaphore name = __SEMAPHORE_INITIALIZER(name,count) - -#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1) - -static inline void sema_init (struct semaphore *sem, int val) -{ -/* - * *sem = (struct semaphore)__SEMAPHORE_INITIALIZER((*sem),val); - * - * i'd rather use the more flexible initialization above, but sadly - * GCC 2.7.2.3 emits a bogus warning. EGCS doesnt. Oh well. - */ - atomic_set(&sem->count, val); - sem->sleepers = 0; - init_waitqueue_head(&sem->wait); -} - -static inline void init_MUTEX (struct semaphore *sem) -{ - sema_init(sem, 1); -} - -static inline void init_MUTEX_LOCKED (struct semaphore *sem) -{ - sema_init(sem, 0); -} - -#if 0 -asmlinkage void __down_failed(void /* special register calling convention */); -asmlinkage int __down_failed_interruptible(void /* params in registers */); -asmlinkage int __down_failed_trylock(void /* params in registers */); -asmlinkage void __up_wakeup(void /* special register calling convention */); -#endif - -asmlinkage void __down(struct semaphore * sem); -asmlinkage int __down_interruptible(struct semaphore * sem); -asmlinkage int __down_trylock(struct semaphore * sem); -asmlinkage void __up(struct semaphore * sem); - -extern spinlock_t semaphore_wake_lock; - -static inline void down(struct semaphore * sem) -{ - if (atomic_dec_return(&sem->count) < 0) - __down(sem); -} - -static inline int down_interruptible(struct semaphore * sem) -{ - int ret = 0; - - if (atomic_dec_return(&sem->count) < 0) - ret = __down_interruptible(sem); - return ret; -} - -static inline int down_trylock(struct semaphore * sem) -{ - int ret = 0; - - if (atomic_dec_return(&sem->count) < 0) - ret = __down_trylock(sem); - return ret; -} - -/* - * Note! This is subtle. We jump to wake people up only if - * the semaphore was negative (== somebody was waiting on it). - */ -static inline void up(struct semaphore * sem) -{ - if (atomic_inc_return(&sem->count) <= 0) - __up(sem); -} - -#endif /* __ASM_SH64_SEMAPHORE_H */ |