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#ifndef __TOOLS_LINUX_SPINLOCK_H
#define __TOOLS_LINUX_SPINLOCK_H
#include <linux/atomic.h>
typedef struct {
int count;
} raw_spinlock_t;
#define __RAW_SPIN_LOCK_UNLOCKED(name) (raw_spinlock_t) { .count = 0 }
static inline void raw_spin_lock_init(raw_spinlock_t *lock)
{
smp_store_release(&lock->count, 0);
}
static inline void raw_spin_lock(raw_spinlock_t *lock)
{
while (xchg_acquire(&lock->count, 1))
;
}
static inline void raw_spin_unlock(raw_spinlock_t *lock)
{
smp_store_release(&lock->count, 0);
}
#define raw_spin_lock_irq(lock) raw_spin_lock(lock)
#define raw_spin_unlock_irq(lock) raw_spin_unlock(lock)
#define raw_spin_lock_irqsave(lock, flags) \
do { \
flags = 0; \
raw_spin_lock(lock); \
} while (0)
#define raw_spin_unlock_irqrestore(lock, flags) raw_spin_unlock(lock)
typedef raw_spinlock_t spinlock_t;
#define __SPIN_LOCK_UNLOCKED(name) __RAW_SPIN_LOCK_UNLOCKED(name)
#define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
#define spin_lock_init(lock) raw_spin_lock_init(lock)
#define spin_lock(lock) raw_spin_lock(lock)
#define spin_unlock(lock) raw_spin_unlock(lock)
#define spin_lock_nested(lock, n) spin_lock(lock)
#define spin_lock_bh(lock) raw_spin_lock(lock)
#define spin_unlock_bh(lock) raw_spin_unlock(lock)
#define spin_lock_irq(lock) raw_spin_lock(lock)
#define spin_unlock_irq(lock) raw_spin_unlock(lock)
#define spin_lock_irqsave(lock, flags) raw_spin_lock_irqsave(lock, flags)
#define spin_unlock_irqrestore(lock, flags) raw_spin_unlock_irqrestore(lock, flags)
#endif /* __TOOLS_LINUX_SPINLOCK_H */
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