64  *      | 0x0000 | H2G `CTB Descriptor`_ (send)                  |      |
68  *      | 0x1000 | H2G `CT Buffer`_ (send)                       | n*4K |
80  * of the receive buffer (relative to the send) to ensure a G2H response
142 	spin_lock_init(&ct->ctbs.send.lock);  in intel_guc_ct_init_early()
218 static int ct_register_buffer(struct intel_guc_ct *ct, bool send,  in ct_register_buffer()  argument
223 	err = intel_guc_self_cfg64(ct_to_guc(ct), send ?  in ct_register_buffer()
230 	err = intel_guc_self_cfg64(ct_to_guc(ct), send ?  in ct_register_buffer()
237 	err = intel_guc_self_cfg32(ct_to_guc(ct), send ?  in ct_register_buffer()
244 			       send ? "SEND" : "RECV", ERR_PTR(err));  in ct_register_buffer()
284 	/* store pointers to desc and cmds for send ctb */  in intel_guc_ct_init()
289 	CT_DEBUG(ct, "%s desc %#tx cmds %#tx size %u/%u\n", "send",  in intel_guc_ct_init()
293 	guc_ct_buffer_init(&ct->ctbs.send, desc, cmds, cmds_size, resv_space);  in intel_guc_ct_init()
344 	/* blob should start with send descriptor */  in intel_guc_ct_enable()
346 	GEM_BUG_ON(blob != ct->ctbs.send.desc);  in intel_guc_ct_enable()
349 	guc_ct_buffer_reset(&ct->ctbs.send);  in intel_guc_ct_enable()
363 	desc = base + ptrdiff(ct->ctbs.send.desc, blob);  in intel_guc_ct_enable()
364 	cmds = base + ptrdiff(ct->ctbs.send.cmds, blob);  in intel_guc_ct_enable()
365 	size = ct->ctbs.send.size * 4;  in intel_guc_ct_enable()
435 	struct intel_guc_ct_buffer *ctb = &ct->ctbs.send;  in ct_write()
530  * For each sent request, GuC shall send back CT response message.
575 		struct guc_ct_buffer_desc *send = ct->ctbs.send.desc;  in ct_deadlocked()  local
576 		struct guc_ct_buffer_desc *recv = ct->ctbs.send.desc;  in ct_deadlocked()
580 			 send->status, recv->status);  in ct_deadlocked()
582 			 atomic_read(&ct->ctbs.send.space) * 4);  in ct_deadlocked()
583 		CT_ERROR(ct, "Head: %u (Dwords)\n", ct->ctbs.send.desc->head);  in ct_deadlocked()
584 		CT_ERROR(ct, "Tail: %u (Dwords)\n", ct->ctbs.send.desc->tail);  in ct_deadlocked()
591 		ct->ctbs.send.broken = true;  in ct_deadlocked()
610 	lockdep_assert_held(&ct->ctbs.send.lock);  in g2h_reserve_space()
625 	struct intel_guc_ct_buffer *ctb = &ct->ctbs.send;  in h2g_has_room()
654 	lockdep_assert_held(&ct->ctbs.send.lock);  in has_room_nb()
685 	struct intel_guc_ct_buffer *ctb = &ct->ctbs.send;  in ct_send_nb()
718 	struct intel_guc_ct_buffer *ctb = &ct->ctbs.send;  in ct_send()
832  * Command Transport (CT) buffer based GuC send function.
844 		WARN(!uc->reset_in_progress, "Unexpected send: action=%#x\n", *action);  in intel_guc_ct_send()
848 	if (unlikely(ct->ctbs.send.broken))  in intel_guc_ct_send()
860 		CT_DEBUG(ct, "send action %#x returned %d (%#x)\n",  in intel_guc_ct_send()
1222 	 * CTB processing in the below workqueue can send CTBs which creates a  in ct_handle_event()
1367 		   atomic_read(&ct->ctbs.send.space) * 4);  in intel_guc_ct_print_info()
1369 		   ct->ctbs.send.desc->head);  in intel_guc_ct_print_info()
1371 		   ct->ctbs.send.desc->tail);  in intel_guc_ct_print_info()