projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 6006c0d8 JH |
1 | #ifndef __ASM_SPINLOCK_H |
| 2 | #define __ASM_SPINLOCK_H | |
| 3 | ||
| 726328d9 PZ |
4 | #include <asm/barrier.h> |
| 5 | #include <asm/processor.h> | |
| 6 | ||
| 6006c0d8 JH |
7 | #ifdef CONFIG_METAG_ATOMICITY_LOCK1 |
| 8 | #include <asm/spinlock_lock1.h> | |
| 9 | #else | |
| 10 | #include <asm/spinlock_lnkget.h> | |
| 11 | #endif | |
| 12 | ||
| 726328d9 PZ |
13 | /* |
| 14 | * both lock1 and lnkget are test-and-set spinlocks with 0 unlocked and 1 | |
| 15 | * locked. | |
| 16 | */ | |
| 17 | ||
| 18 | static inline void arch_spin_unlock_wait(arch_spinlock_t *lock) | |
| 19 | { | |
| 20 | smp_cond_load_acquire(&lock->lock, !VAL); | |
| 21 | } | |
| 6006c0d8 JH |
22 | |
| 23 | #define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) | |
| 24 | ||
| 25 | #define arch_read_lock_flags(lock, flags) arch_read_lock(lock) | |
| 26 | #define arch_write_lock_flags(lock, flags) arch_write_lock(lock) | |
| 27 | ||
| 28 | #define arch_spin_relax(lock) cpu_relax() | |
| 29 | #define arch_read_relax(lock) cpu_relax() | |
| 30 | #define arch_write_relax(lock) cpu_relax() | |
| 31 | ||
| 32 | #endif /* __ASM_SPINLOCK_H */ |