14 #define arch_spin_is_locked(lock) (*((volatile unsigned char *)(lock)) != 0)  argument
16 #define arch_spin_unlock_wait(lock) \  argument
17 	do { while (arch_spin_is_locked(lock)) cpu_relax(); } while (0)
19 static inline void arch_spin_lock(arch_spinlock_t *lock)  in arch_spin_lock()  argument
35 	: "r" (lock)  in arch_spin_lock()
39 static inline int arch_spin_trylock(arch_spinlock_t *lock)  in arch_spin_trylock()  argument
44 			     : "r" (lock)  in arch_spin_trylock()
49 static inline void arch_spin_unlock(arch_spinlock_t *lock)  in arch_spin_unlock()  argument
51 	__asm__ __volatile__("stb %%g0, [%0]" : : "r" (lock) : "memory");  in arch_spin_unlock()
93 #define arch_read_lock(lock) \  argument
96 	__arch_read_lock(lock); \
113 #define arch_read_unlock(lock) \  argument
116 	__arch_read_unlock(lock); \
131 	*(volatile __u32 *)&lp->lock = ~0U;  in arch_write_lock()
134 static void inline arch_write_unlock(arch_rwlock_t *lock)  in arch_write_unlock()  argument
139 	: "r" (lock)  in arch_write_unlock()
149 			     : "r" (&rw->lock)  in arch_write_trylock()
153 		val = rw->lock & ~0xff;  in arch_write_trylock()
155 			((volatile u8*)&rw->lock)[3] = 0;  in arch_write_trylock()
157 			*(volatile u32*)&rw->lock = ~0U;  in arch_write_trylock()
178 #define arch_read_trylock(lock) \  argument
182 	res = __arch_read_trylock(lock); \
187 #define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)  argument
191 #define arch_spin_relax(lock)	cpu_relax()  argument
192 #define arch_read_relax(lock)	cpu_relax()  argument
193 #define arch_write_relax(lock)	cpu_relax()  argument
195 #define arch_read_can_lock(rw) (!((rw)->lock & 0xff))
196 #define arch_write_can_lock(rw) (!(rw)->lock)