1#ifndef __ASM_SH_FUTEX_IRQ_H
  2#define __ASM_SH_FUTEX_IRQ_H
  3
  4#include <asm/system.h>
  5
  6static inline int atomic_futex_op_xchg_set(int oparg, u32 __user *uaddr,
  7					   int *oldval)
  8{
  9	unsigned long flags;
 10	int ret;
 11
 12	local_irq_save(flags);
 13
 14	ret = get_user(*oldval, uaddr);
 15	if (!ret)
 16		ret = put_user(oparg, uaddr);
 17
 18	local_irq_restore(flags);
 19
 20	return ret;
 21}
 22
 23static inline int atomic_futex_op_xchg_add(int oparg, u32 __user *uaddr,
 24					   int *oldval)
 25{
 26	unsigned long flags;
 27	int ret;
 28
 29	local_irq_save(flags);
 30
 31	ret = get_user(*oldval, uaddr);
 32	if (!ret)
 33		ret = put_user(*oldval + oparg, uaddr);
 34
 35	local_irq_restore(flags);
 36
 37	return ret;
 38}
 39
 40static inline int atomic_futex_op_xchg_or(int oparg, u32 __user *uaddr,
 41					  int *oldval)
 42{
 43	unsigned long flags;
 44	int ret;
 45
 46	local_irq_save(flags);
 47
 48	ret = get_user(*oldval, uaddr);
 49	if (!ret)
 50		ret = put_user(*oldval | oparg, uaddr);
 51
 52	local_irq_restore(flags);
 53
 54	return ret;
 55}
 56
 57static inline int atomic_futex_op_xchg_and(int oparg, u32 __user *uaddr,
 58					   int *oldval)
 59{
 60	unsigned long flags;
 61	int ret;
 62
 63	local_irq_save(flags);
 64
 65	ret = get_user(*oldval, uaddr);
 66	if (!ret)
 67		ret = put_user(*oldval & oparg, uaddr);
 68
 69	local_irq_restore(flags);
 70
 71	return ret;
 72}
 73
 74static inline int atomic_futex_op_xchg_xor(int oparg, u32 __user *uaddr,
 75					   int *oldval)
 76{
 77	unsigned long flags;
 78	int ret;
 79
 80	local_irq_save(flags);
 81
 82	ret = get_user(*oldval, uaddr);
 83	if (!ret)
 84		ret = put_user(*oldval ^ oparg, uaddr);
 85
 86	local_irq_restore(flags);
 87
 88	return ret;
 89}
 90
 91static inline int atomic_futex_op_cmpxchg_inatomic(u32 *uval,
 92						   u32 __user *uaddr,
 93						   u32 oldval, u32 newval)
 94{
 95	unsigned long flags;
 96	int ret;
 97	u32 prev = 0;
 98
 99	local_irq_save(flags);
100
101	ret = get_user(prev, uaddr);
102	if (!ret && oldval == prev)
103		ret = put_user(newval, uaddr);
104
105	local_irq_restore(flags);
106
107	*uval = prev;
108	return ret;
109}
110
111#endif /* __ASM_SH_FUTEX_IRQ_H */

 1#ifndef __ASM_SH_FUTEX_IRQ_H
 2#define __ASM_SH_FUTEX_IRQ_H
 3
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 4static inline int atomic_futex_op_cmpxchg_inatomic(u32 *uval,
 5						   u32 __user *uaddr,
 6						   u32 oldval, u32 newval)
 7{
 8	unsigned long flags;
 9	int ret;
10	u32 prev = 0;
11
12	local_irq_save(flags);
13
14	ret = get_user(prev, uaddr);
15	if (!ret && oldval == prev)
16		ret = put_user(newval, uaddr);
17
18	local_irq_restore(flags);
19
20	*uval = prev;
21	return ret;
22}
23
24#endif /* __ASM_SH_FUTEX_IRQ_H */