| #ifndef __ASM_SPINLOCK_H |
| #define __ASM_SPINLOCK_H |
| |
| #include <asm/barrier.h> |
| #include <asm/processor.h> |
| |
| #ifdef CONFIG_METAG_ATOMICITY_LOCK1 |
| #include <asm/spinlock_lock1.h> |
| #else |
| #include <asm/spinlock_lnkget.h> |
| #endif |
| |
| /* |
| * both lock1 and lnkget are test-and-set spinlocks with 0 unlocked and 1 |
| * locked. |
| */ |
| |
| static inline void arch_spin_unlock_wait(arch_spinlock_t *lock) |
| { |
| smp_cond_load_acquire(&lock->lock, !VAL); |
| } |
| |
| #define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) |
| |
| #define arch_read_lock_flags(lock, flags) arch_read_lock(lock) |
| #define arch_write_lock_flags(lock, flags) arch_write_lock(lock) |
| |
| #define arch_spin_relax(lock) cpu_relax() |
| #define arch_read_relax(lock) cpu_relax() |
| #define arch_write_relax(lock) cpu_relax() |
| |
| #endif /* __ASM_SPINLOCK_H */ |
