222 	isadma_devstate_t *isadmap;	/* per isadma state pointer */  in isadma_attach()  local
241 		isadmap = ddi_get_soft_state(per_isadma_state, instance);  in isadma_attach()
242 		isadmap->isadma_dip = dip;  in isadma_attach()
246 		    "reg", (caddr_t)&isadmap->isadma_regp,  in isadma_attach()
247 		    &isadmap->isadma_reglen) != DDI_SUCCESS) {  in isadma_attach()
253 		mutex_init(&isadmap->isadma_access_lock, NULL, MUTEX_DRIVER,  in isadma_attach()
257 		cv_init(&isadmap->isadma_access_cv, NULL, CV_DRIVER, NULL);  in isadma_attach()
282 	isadma_devstate_t *isadmap =  in isadma_detach()  local
287 		cv_destroy(&isadmap->isadma_access_cv);  in isadma_detach()
289 		mutex_destroy(&isadmap->isadma_access_lock);  in isadma_detach()
292 		kmem_free(isadmap->isadma_regp, isadmap->isadma_reglen);  in isadma_detach()
306 isadma_check_waiters(isadma_devstate_t *isadmap)  in isadma_check_waiters()  argument
308 	if (isadmap->isadma_want > isadma_max_waiter)  in isadma_check_waiters()
309 		isadma_max_waiter = isadmap->isadma_want;  in isadma_check_waiters()
311 	if (isadmap->isadma_want < isadma_min_waiter)  in isadma_check_waiters()
312 		isadma_min_waiter = isadmap->isadma_want;  in isadma_check_waiters()
317 isadma_dmawait(isadma_devstate_t *isadmap)  in isadma_dmawait()  argument
320 	ASSERT(mutex_owned(&isadmap->isadma_access_lock));  in isadma_dmawait()
323 	while (isadmap->isadma_ldip != NULL) {  in isadma_dmawait()
325 		isadmap->isadma_want++;  in isadma_dmawait()
326 		cv_wait(&isadmap->isadma_access_cv,  in isadma_dmawait()
327 		    &isadmap->isadma_access_lock);  in isadma_dmawait()
328 		isadmap->isadma_want--;  in isadma_dmawait()
334 isadma_wakeup(isadma_devstate_t *isadmap)  in isadma_wakeup()  argument
337 	ASSERT(mutex_owned(&isadmap->isadma_access_lock));  in isadma_wakeup()
343 	if (isadmap->isadma_want > 0 && isadmap->isadma_ldip == NULL) {  in isadma_wakeup()
344 		cv_signal(&isadmap->isadma_access_cv);  in isadma_wakeup()
415 	isadma_devstate_t *isadmap = hdlp->ahi_common.ah_bus_private;  in isadma_get8()  local
426 	isadma_check_waiters(isadmap);  in isadma_get8()
428 	mutex_enter(&isadmap->isadma_access_lock);  in isadma_get8()
429 	isadma_dmawait(isadmap);	/* wait until on-going dma completes */  in isadma_get8()
441 	isadma_wakeup(isadmap);  in isadma_get8()
442 	mutex_exit(&isadmap->isadma_access_lock);  in isadma_get8()
456 	isadma_devstate_t *isadmap = hdlp->ahi_common.ah_bus_private;  in isadma_get16()  local
467 	isadma_check_waiters(isadmap);  in isadma_get16()
469 	mutex_enter(&isadmap->isadma_access_lock);  in isadma_get16()
470 	isadma_dmawait(isadmap);	/* wait until on-going dma completes */  in isadma_get16()
483 	isadma_wakeup(isadmap);  in isadma_get16()
484 	mutex_exit(&isadmap->isadma_access_lock);  in isadma_get16()
515 	isadma_devstate_t *isadmap = hdlp->ahi_common.ah_bus_private;  in isadma_put8()  local
526 	isadma_check_waiters(isadmap);  in isadma_put8()
528 	mutex_enter(&isadmap->isadma_access_lock);  in isadma_put8()
530 	if (isadmap->isadma_ldip == hdlp->ahi_common.ah_dip) { /* owned lock? */  in isadma_put8()
532 			isadmap->isadma_ldip = NULL;	/* reset lock owner */  in isadma_put8()
539 		isadma_dmawait(isadmap);  in isadma_put8()
542 			isadmap->isadma_ldip = hdlp->ahi_common.ah_dip;  in isadma_put8()
559 	isadma_wakeup(isadmap);  in isadma_put8()
560 	mutex_exit(&isadmap->isadma_access_lock);  in isadma_put8()
573 	isadma_devstate_t *isadmap = hdlp->ahi_common.ah_bus_private;  in isadma_put16()  local
584 	isadma_check_waiters(isadmap);  in isadma_put16()
586 	mutex_enter(&isadmap->isadma_access_lock);  in isadma_put16()
587 	isadma_dmawait(isadmap);	/* wait until on-going dma completes */  in isadma_put16()
600 	isadma_wakeup(isadmap);  in isadma_put16()
601 	mutex_exit(&isadmap->isadma_access_lock);  in isadma_put16()
624 	isadma_devstate_t *isadmap = ddi_get_soft_state(per_isadma_state,  in isadma_map()  local
645 	    (void *)isadmap->isadma_regp, (void *)regp));  in isadma_map()
655 		    !IS_SAME_REG(child_regp, isadmap->isadma_regp))  in isadma_map()
664 		hp->ahi_common.ah_bus_private = isadmap;  in isadma_map()
684 		if (IS_SAME_REG(child_regp, isadmap->isadma_regp)) {  in isadma_map()