44 static boolean_t getspin(volatile shmem_msg_t *smp);
53 	volatile	shmem_msg_t *smp;  in prb_shmem_init()  local
63 	smp = (shmem_msg_t *) mmap(0, sizeof (struct shmem_msg),  in prb_shmem_init()
66 	if (smp == (struct shmem_msg *) - 1) {  in prb_shmem_init()
73 	smp->spin = B_TRUE;  in prb_shmem_init()
75 	*ret_val = smp;  in prb_shmem_init()
84 getspin(volatile shmem_msg_t *smp)  in getspin()  argument
86 	return (smp->spin);  in getspin()
90 prb_shmem_wait(volatile shmem_msg_t *smp)  in prb_shmem_wait()  argument
95 	while (getspin(smp));  in prb_shmem_wait()
110 prb_shmem_clear(volatile shmem_msg_t *smp)  in prb_shmem_clear()  argument
114 	smp->spin = B_FALSE;  in prb_shmem_clear()
123 prb_shmem_free(volatile shmem_msg_t *smp)  in prb_shmem_free()  argument
127 	if (munmap((caddr_t) smp, sizeof (struct shmem_msg)) != 0) {  in prb_shmem_free()