[deliverable/linux.git] / arch / arm / include / asm / spinlock_types.h

#ifndef __ASM_SPINLOCK_TYPES_H
#define __ASM_SPINLOCK_TYPES_H

#ifndef __LINUX_SPINLOCK_TYPES_H
# error "please don't include this file directly"
#endif

#define TICKET_SHIFT	16

typedef struct {
	union {
		u32 slock;
		struct __raw_tickets {
#ifdef __ARMEB__
			u16 next;
			u16 owner;
#else
			u16 owner;
			u16 next;
#endif
		} tickets;
	};
} arch_spinlock_t;

#define __ARCH_SPIN_LOCK_UNLOCKED	{ { 0 } }

typedef struct {
	u32 lock;
} arch_rwlock_t;

#define __ARCH_RW_LOCK_UNLOCKED		{ 0 }

#endif
Commit	Line	Data
fb1c8f93 IM	1	#ifndef __ASM_SPINLOCK_TYPES_H
	2	#define __ASM_SPINLOCK_TYPES_H
	3
	4	#ifndef __LINUX_SPINLOCK_TYPES_H
	5	# error "please don't include this file directly"
	6	#endif
	7
546c2896 WD	8	#define TICKET_SHIFT 16
546c2896 WD	9
fb1c8f93	10	typedef struct {
546c2896 WD	11	union {
	12	u32 slock;
	13	struct __raw_tickets {
	14	#ifdef __ARMEB__
	15	u16 next;
	16	u16 owner;
	17	#else
	18	u16 owner;
	19	u16 next;
	20	#endif
	21	} tickets;
	22	};
445c8951	23	} arch_spinlock_t;
fb1c8f93	24
546c2896	25	#define __ARCH_SPIN_LOCK_UNLOCKED { { 0 } }
fb1c8f93 IM	26
fb1c8f93 IM	27	typedef struct {
9bb17be0	28	u32 lock;
fb3a6bbc	29	} arch_rwlock_t;
fb1c8f93	30
fb3a6bbc	31	#define __ARCH_RW_LOCK_UNLOCKED { 0 }
fb1c8f93 IM	32
fb1c8f93 IM	33	#endif