#ifndef __LINUX_SPINLOCK_TYPES_H
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#define __LINUX_SPINLOCK_TYPES_H
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/*
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* include/linux/spinlock_types.h - generic spinlock type definitions
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* and initializers
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*
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* portions Copyright 2005, Red Hat, Inc., Ingo Molnar
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* Released under the General Public License (GPL).
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*/
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#if defined(CONFIG_SMP)
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# include <asm/spinlock_types.h>
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#else
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# include <linux/spinlock_types_up.h>
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#endif
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#include <linux/lockdep_types.h>
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typedef struct raw_spinlock {
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arch_spinlock_t raw_lock;
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#ifdef CONFIG_DEBUG_SPINLOCK
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unsigned int magic, owner_cpu;
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void *owner;
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#endif
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#ifdef CONFIG_DEBUG_LOCK_ALLOC
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struct lockdep_map dep_map;
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#endif
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} raw_spinlock_t;
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#define SPINLOCK_MAGIC 0xdead4ead
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#define SPINLOCK_OWNER_INIT ((void *)-1L)
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#ifdef CONFIG_DEBUG_LOCK_ALLOC
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# define RAW_SPIN_DEP_MAP_INIT(lockname) \
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.dep_map = { \
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.name = #lockname, \
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.wait_type_inner = LD_WAIT_SPIN, \
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}
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# define SPIN_DEP_MAP_INIT(lockname) \
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.dep_map = { \
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.name = #lockname, \
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.wait_type_inner = LD_WAIT_CONFIG, \
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}
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#else
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# define RAW_SPIN_DEP_MAP_INIT(lockname)
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# define SPIN_DEP_MAP_INIT(lockname)
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#endif
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#ifdef CONFIG_DEBUG_SPINLOCK
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# define SPIN_DEBUG_INIT(lockname) \
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.magic = SPINLOCK_MAGIC, \
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.owner_cpu = -1, \
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.owner = SPINLOCK_OWNER_INIT,
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#else
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# define SPIN_DEBUG_INIT(lockname)
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#endif
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#define __RAW_SPIN_LOCK_INITIALIZER(lockname) \
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{ \
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.raw_lock = __ARCH_SPIN_LOCK_UNLOCKED, \
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SPIN_DEBUG_INIT(lockname) \
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RAW_SPIN_DEP_MAP_INIT(lockname) }
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#define __RAW_SPIN_LOCK_UNLOCKED(lockname) \
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(raw_spinlock_t) __RAW_SPIN_LOCK_INITIALIZER(lockname)
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#define DEFINE_RAW_SPINLOCK(x) raw_spinlock_t x = __RAW_SPIN_LOCK_UNLOCKED(x)
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typedef struct spinlock {
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union {
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struct raw_spinlock rlock;
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#ifdef CONFIG_DEBUG_LOCK_ALLOC
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# define LOCK_PADSIZE (offsetof(struct raw_spinlock, dep_map))
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struct {
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u8 __padding[LOCK_PADSIZE];
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struct lockdep_map dep_map;
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};
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#endif
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};
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} spinlock_t;
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#define ___SPIN_LOCK_INITIALIZER(lockname) \
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{ \
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.raw_lock = __ARCH_SPIN_LOCK_UNLOCKED, \
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SPIN_DEBUG_INIT(lockname) \
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SPIN_DEP_MAP_INIT(lockname) }
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#define __SPIN_LOCK_INITIALIZER(lockname) \
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{ { .rlock = ___SPIN_LOCK_INITIALIZER(lockname) } }
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#define __SPIN_LOCK_UNLOCKED(lockname) \
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(spinlock_t) __SPIN_LOCK_INITIALIZER(lockname)
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#define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
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#include <linux/rwlock_types.h>
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#endif /* __LINUX_SPINLOCK_TYPES_H */
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