1#ifndef __LINUX_SPINLOCK_TYPES_RAW_H
2#define __LINUX_SPINLOCK_TYPES_RAW_H
3
4#include <linux/types.h>
5
6#if defined(CONFIG_SMP)
7# include <asm/spinlock_types.h>
8#else
9# include <linux/spinlock_types_up.h>
10#endif
11
12#include <linux/lockdep_types.h>
13
14typedef struct raw_spinlock {
15	arch_spinlock_t raw_lock;
16#ifdef CONFIG_DEBUG_SPINLOCK
17	unsigned int magic, owner_cpu;
18	void *owner;
19#endif
20#ifdef CONFIG_DEBUG_LOCK_ALLOC
21	struct lockdep_map dep_map;
22#endif
23} raw_spinlock_t;
24
25#define SPINLOCK_MAGIC		0xdead4ead
26
27#define SPINLOCK_OWNER_INIT	((void *)-1L)
28
29#ifdef CONFIG_DEBUG_LOCK_ALLOC
30# define RAW_SPIN_DEP_MAP_INIT(lockname)		\
31	.dep_map = {					\
32		.name = #lockname,			\
33		.wait_type_inner = LD_WAIT_SPIN,	\
34	}
35# define SPIN_DEP_MAP_INIT(lockname)			\
36	.dep_map = {					\
37		.name = #lockname,			\
38		.wait_type_inner = LD_WAIT_CONFIG,	\
39	}
40
41# define LOCAL_SPIN_DEP_MAP_INIT(lockname)		\
42	.dep_map = {					\
43		.name = #lockname,			\
44		.wait_type_inner = LD_WAIT_CONFIG,	\
45		.lock_type = LD_LOCK_PERCPU,		\
46	}
47#else
48# define RAW_SPIN_DEP_MAP_INIT(lockname)
49# define SPIN_DEP_MAP_INIT(lockname)
50# define LOCAL_SPIN_DEP_MAP_INIT(lockname)
51#endif
52
53#ifdef CONFIG_DEBUG_SPINLOCK
54# define SPIN_DEBUG_INIT(lockname)		\
55	.magic = SPINLOCK_MAGIC,		\
56	.owner_cpu = -1,			\
57	.owner = SPINLOCK_OWNER_INIT,
58#else
59# define SPIN_DEBUG_INIT(lockname)
60#endif
61
62#define __RAW_SPIN_LOCK_INITIALIZER(lockname)	\
63{						\
64	.raw_lock = __ARCH_SPIN_LOCK_UNLOCKED,	\
65	SPIN_DEBUG_INIT(lockname)		\
66	RAW_SPIN_DEP_MAP_INIT(lockname) }
67
68#define __RAW_SPIN_LOCK_UNLOCKED(lockname)	\
69	(raw_spinlock_t) __RAW_SPIN_LOCK_INITIALIZER(lockname)
70
71#define DEFINE_RAW_SPINLOCK(x)  raw_spinlock_t x = __RAW_SPIN_LOCK_UNLOCKED(x)
72
73#endif /* __LINUX_SPINLOCK_TYPES_RAW_H */
74