300 	struct devmap_ctx	*devctx;  in devmap_ctxinit()  local
312 	for (devctx = devmapctx_list; devctx != NULL; devctx = devctx->next)  in devmap_ctxinit()
313 		if ((devctx->dip == dip) && (devctx->id == id))  in devmap_ctxinit()
316 	if (devctx == NULL) {  in devmap_ctxinit()
317 		devctx = tmp;  in devmap_ctxinit()
318 		devctx->dip = dip;  in devmap_ctxinit()
319 		devctx->id = id;  in devmap_ctxinit()
320 		mutex_init(&devctx->lock, NULL, MUTEX_DEFAULT, NULL);  in devmap_ctxinit()
321 		cv_init(&devctx->cv, NULL, CV_DEFAULT, NULL);  in devmap_ctxinit()
322 		devctx->next = devmapctx_list;  in devmap_ctxinit()
323 		devmapctx_list = devctx;  in devmap_ctxinit()
327 	mutex_enter(&devctx->lock);  in devmap_ctxinit()
328 	devctx->refcnt++;  in devmap_ctxinit()
329 	mutex_exit(&devctx->lock);  in devmap_ctxinit()
332 	return (devctx);  in devmap_ctxinit()
342 	struct devmap_ctx *devctx = data;  in devmap_ctxto()  local
345 	    "devmap_ctxto:timeout expired, devctx=%p", (void *)devctx);  in devmap_ctxto()
346 	mutex_enter(&devctx->lock);  in devmap_ctxto()
351 	devctx->oncpu = 0;  in devmap_ctxto()
352 	devctx->timeout = 0;  in devmap_ctxto()
353 	cv_signal(&devctx->cv);  in devmap_ctxto()
354 	mutex_exit(&devctx->lock);  in devmap_ctxto()
2596 	struct devmap_ctx *devctx;  in devmap_do_ctxmgt()  local
2613 	devctx = dhp->dh_ctx;  in devmap_do_ctxmgt()
2629 		    devctx, dhp);  in devmap_do_ctxmgt()
2631 		mutex_enter(&devctx->lock);  in devmap_do_ctxmgt()
2632 		while (devctx->oncpu)  in devmap_do_ctxmgt()
2633 			cv_wait(&devctx->cv, &devctx->lock);  in devmap_do_ctxmgt()
2634 		devctx->oncpu = 1;  in devmap_do_ctxmgt()
2635 		mutex_exit(&devctx->lock);  in devmap_do_ctxmgt()
2654 		    ret, dhp, devctx);  in devmap_do_ctxmgt()
2657 		if (devctx->oncpu) {  in devmap_do_ctxmgt()
2658 			mutex_enter(&devctx->lock);  in devmap_do_ctxmgt()
2659 			devctx->oncpu = 0;  in devmap_do_ctxmgt()
2660 			cv_signal(&devctx->cv);  in devmap_do_ctxmgt()
2661 			mutex_exit(&devctx->lock);  in devmap_do_ctxmgt()
2670 		mutex_enter(&devctx->lock);  in devmap_do_ctxmgt()
2674 			devctx->timeout = timeout(devmap_ctxto,  in devmap_do_ctxmgt()
2675 			    devctx, dhp->dh_timeout_length);  in devmap_do_ctxmgt()
2683 			devctx->oncpu = 0;  in devmap_do_ctxmgt()
2684 			cv_signal(&devctx->cv);  in devmap_do_ctxmgt()
2686 		mutex_exit(&devctx->lock);  in devmap_do_ctxmgt()
2999 	struct devmap_ctx *devctx = dhp->dh_ctx;  in devmap_ctx_rele()  local
3008 	mutex_enter(&devctx->lock);  in devmap_ctx_rele()
3010 	ASSERT(devctx->refcnt > 0);  in devmap_ctx_rele()
3012 	devctx->refcnt--;  in devmap_ctx_rele()
3017 	if (devctx->refcnt == 0) {  in devmap_ctx_rele()
3022 		if (devctx->timeout != 0) {  in devmap_ctx_rele()
3026 			tid = devctx->timeout;  in devmap_ctx_rele()
3027 			mutex_exit(&devctx->lock);  in devmap_ctx_rele()
3029 			mutex_enter(&devctx->lock);  in devmap_ctx_rele()
3032 		devctx->oncpu = 0;  in devmap_ctx_rele()
3033 		cv_signal(&devctx->cv);  in devmap_ctx_rele()
3035 		if (devmapctx_list == devctx)  in devmap_ctx_rele()
3036 			devmapctx_list = devctx->next;  in devmap_ctx_rele()
3041 				if (tmp == devctx) {  in devmap_ctx_rele()
3048 		mutex_exit(&devctx->lock);  in devmap_ctx_rele()
3049 		mutex_destroy(&devctx->lock);  in devmap_ctx_rele()
3050 		cv_destroy(&devctx->cv);  in devmap_ctx_rele()
3051 		kmem_free(devctx, sizeof (struct devmap_ctx));  in devmap_ctx_rele()
3053 		mutex_exit(&devctx->lock);  in devmap_ctx_rele()