Release 4.11 arch/blackfin/include/asm/spinlock.h

/*
 * Copyright 2004-2009 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#ifndef __BFIN_SPINLOCK_H

#define __BFIN_SPINLOCK_H

#ifndef CONFIG_SMP
# include <asm-generic/spinlock.h>
#else

#include <linux/atomic.h>
#include <asm/processor.h>
#include <asm/barrier.h>

asmlinkage int __raw_spin_is_locked_asm(volatile int *ptr);
asmlinkage void __raw_spin_lock_asm(volatile int *ptr);
asmlinkage int __raw_spin_trylock_asm(volatile int *ptr);
asmlinkage void __raw_spin_unlock_asm(volatile int *ptr);
asmlinkage void __raw_read_lock_asm(volatile int *ptr);
asmlinkage int __raw_read_trylock_asm(volatile int *ptr);
asmlinkage void __raw_read_unlock_asm(volatile int *ptr);
asmlinkage void __raw_write_lock_asm(volatile int *ptr);
asmlinkage int __raw_write_trylock_asm(volatile int *ptr);
asmlinkage void __raw_write_unlock_asm(volatile int *ptr);



static inline int arch_spin_is_locked(arch_spinlock_t *lock)
{
	return __raw_spin_is_locked_asm(&lock->lock);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
18
90.00%
1
33.33%
Thomas Gleixner
2
10.00%
2
66.67%
Total
20
100.00%
3
100.00%



static inline void arch_spin_lock(arch_spinlock_t *lock)
{
	__raw_spin_lock_asm(&lock->lock);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
17
89.47%
1
33.33%
Thomas Gleixner
2
10.53%
2
66.67%
Total
19
100.00%
3
100.00%


#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)



static inline int arch_spin_trylock(arch_spinlock_t *lock)
{
	return __raw_spin_trylock_asm(&lock->lock);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
18
90.00%
1
33.33%
Thomas Gleixner
2
10.00%
2
66.67%
Total
20
100.00%
3
100.00%



static inline void arch_spin_unlock(arch_spinlock_t *lock)
{
	__raw_spin_unlock_asm(&lock->lock);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
17
89.47%
1
33.33%
Thomas Gleixner
2
10.53%
2
66.67%
Total
19
100.00%
3
100.00%



static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
{
	smp_cond_load_acquire(&lock->lock, !VAL);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
13
59.09%
1
25.00%
Peter Zijlstra
7
31.82%
1
25.00%
Thomas Gleixner
2
9.09%
2
50.00%
Total
22
100.00%
4
100.00%



static inline int arch_read_can_lock(arch_rwlock_t *rw)
{
	return __raw_uncached_fetch_asm(&rw->lock) > 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
20
90.91%
1
33.33%
Thomas Gleixner
2
9.09%
2
66.67%
Total
22
100.00%
3
100.00%



static inline int arch_write_can_lock(arch_rwlock_t *rw)
{
	return __raw_uncached_fetch_asm(&rw->lock) == RW_LOCK_BIAS;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
20
90.91%
1
33.33%
Thomas Gleixner
2
9.09%
2
66.67%
Total
22
100.00%
3
100.00%



static inline void arch_read_lock(arch_rwlock_t *rw)
{
	__raw_read_lock_asm(&rw->lock);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
17
89.47%
2
50.00%
Thomas Gleixner
2
10.53%
2
50.00%
Total
19
100.00%
4
100.00%


#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)



static inline int arch_read_trylock(arch_rwlock_t *rw)
{
	return __raw_read_trylock_asm(&rw->lock);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
18
90.00%
2
50.00%
Thomas Gleixner
2
10.00%
2
50.00%
Total
20
100.00%
4
100.00%



static inline void arch_read_unlock(arch_rwlock_t *rw)
{
	__raw_read_unlock_asm(&rw->lock);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
17
89.47%
2
50.00%
Thomas Gleixner
2
10.53%
2
50.00%
Total
19
100.00%
4
100.00%



static inline void arch_write_lock(arch_rwlock_t *rw)
{
	__raw_write_lock_asm(&rw->lock);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
17
89.47%
2
50.00%
Thomas Gleixner
2
10.53%
2
50.00%
Total
19
100.00%
4
100.00%


#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)



static inline int arch_write_trylock(arch_rwlock_t *rw)
{
	return __raw_write_trylock_asm(&rw->lock);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
18
90.00%
2
50.00%
Thomas Gleixner
2
10.00%
2
50.00%
Total
20
100.00%
4
100.00%



static inline void arch_write_unlock(arch_rwlock_t *rw)
{
	__raw_write_unlock_asm(&rw->lock);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
17
89.47%
2
50.00%
Thomas Gleixner
2
10.53%
2
50.00%
Total
19
100.00%
4
100.00%


#define arch_spin_relax(lock)  	cpu_relax()

#define arch_read_relax(lock)	cpu_relax()

#define arch_write_relax(lock)	cpu_relax()

#endif

#endif /*  !__BFIN_SPINLOCK_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Graf Yang
373
85.35%
3
25.00%
Thomas Gleixner
31
7.09%
4
33.33%
Peter Zijlstra
13
2.97%
1
8.33%
Mike Frysinger
11
2.52%
2
16.67%
Bryan Wu
8
1.83%
1
8.33%
Arun Sharma
1
0.23%
1
8.33%
Total
437
100.00%
12
100.00%
Directory: arch/blackfin/include/asm

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.