29 void mei_irq_compl_handler(struct mei_device *dev, struct list_head *cmpl_list)  in mei_irq_compl_handler()  argument
38 		dev_dbg(dev->dev, "completing call back.\n");  in mei_irq_compl_handler()
66 static void mei_irq_discard_msg(struct mei_device *dev, struct mei_msg_hdr *hdr,  in mei_irq_discard_msg()  argument
70 		mei_dma_ring_read(dev, NULL,  in mei_irq_discard_msg()
71 				  hdr->extension[dev->rd_msg_hdr_count - 2]);  in mei_irq_discard_msg()
78 	mei_read_slots(dev, dev->rd_msg_buf, discard_len);  in mei_irq_discard_msg()
79 	dev_dbg(dev->dev, "discarding message " MEI_HDR_FMT "\n",  in mei_irq_discard_msg()
98 	struct mei_device *dev = cl->dev;  in mei_cl_irq_read_msg()  local
118 			cl_err(dev, cl, "pending read cb not found\n");  in mei_cl_irq_read_msg()
145 				cl_err(dev, cl, "unknown extended header\n");  in mei_cl_irq_read_msg()
154 			cl_dbg(dev, cl, "no vtag or gsc found in extended header.\n");  in mei_cl_irq_read_msg()
161 		cl_dbg(dev, cl, "vtag: %d\n", vtag_hdr->vtag);  in mei_cl_irq_read_msg()
163 			cl_err(dev, cl, "mismatched tag: %d != %d\n",  in mei_cl_irq_read_msg()
174 		if (!dev->hbm_f_gsc_supported) {  in mei_cl_irq_read_msg()
175 			cl_err(dev, cl, "gsc extended header is not supported\n");  in mei_cl_irq_read_msg()
181 			cl_err(dev, cl, "no data allowed in cb with gsc\n");  in mei_cl_irq_read_msg()
186 			cl_err(dev, cl, "gsc extended header is too big %u\n", ext_hdr_len);  in mei_cl_irq_read_msg()
194 		cl_dbg(dev, cl, "not connected\n");  in mei_cl_irq_read_msg()
205 		cl_err(dev, cl, "message is too big len %d idx %zu\n",  in mei_cl_irq_read_msg()
212 		cl_dbg(dev, cl, "message overflow. size %zu len %d idx %zu\n",  in mei_cl_irq_read_msg()
219 		mei_dma_ring_read(dev, cb->buf.data + cb->buf_idx, length);  in mei_cl_irq_read_msg()
221 		mei_read_slots(dev, cb->buf.data + cb->buf_idx, 0);  in mei_cl_irq_read_msg()
223 		mei_read_slots(dev, cb->buf.data + cb->buf_idx, length);  in mei_cl_irq_read_msg()
229 		cl_dbg(dev, cl, "completed read length = %zu\n", cb->buf_idx);  in mei_cl_irq_read_msg()
232 		pm_runtime_mark_last_busy(dev->dev);  in mei_cl_irq_read_msg()
233 		pm_request_autosuspend(dev->dev);  in mei_cl_irq_read_msg()
241 	mei_irq_discard_msg(dev, mei_hdr, length);  in mei_cl_irq_read_msg()
257 	struct mei_device *dev = cl->dev;  in mei_cl_irq_disconnect_rsp()  local
263 	slots = mei_hbuf_empty_slots(dev);  in mei_cl_irq_disconnect_rsp()
270 	ret = mei_hbm_cl_disconnect_rsp(dev, cl);  in mei_cl_irq_disconnect_rsp()
289 	struct mei_device *dev = cl->dev;  in mei_cl_irq_read()  local
298 	slots = mei_hbuf_empty_slots(dev);  in mei_cl_irq_read()
305 	ret = mei_hbm_cl_flow_control_req(dev, cl);  in mei_cl_irq_read()
313 	pm_runtime_mark_last_busy(dev->dev);  in mei_cl_irq_read()
314 	pm_request_autosuspend(dev->dev);  in mei_cl_irq_read()
360 int mei_irq_read_handler(struct mei_device *dev,  in mei_irq_read_handler()  argument
372 	if (!dev->rd_msg_hdr[0]) {  in mei_irq_read_handler()
373 		dev->rd_msg_hdr[0] = mei_read_hdr(dev);  in mei_irq_read_handler()
374 		dev->rd_msg_hdr_count = 1;  in mei_irq_read_handler()
376 		dev_dbg(dev->dev, "slots =%08x.\n", *slots);  in mei_irq_read_handler()
378 		ret = hdr_is_valid(dev->rd_msg_hdr[0]);  in mei_irq_read_handler()
380 			dev_err(dev->dev, "corrupted message header 0x%08X\n",  in mei_irq_read_handler()
381 				dev->rd_msg_hdr[0]);  in mei_irq_read_handler()
386 	mei_hdr = (struct mei_msg_hdr *)dev->rd_msg_hdr;  in mei_irq_read_handler()
387 	dev_dbg(dev->dev, MEI_HDR_FMT, MEI_HDR_PRM(mei_hdr));  in mei_irq_read_handler()
390 		dev_err(dev->dev, "less data available than length=%08x.\n",  in mei_irq_read_handler()
401 		if (!dev->rd_msg_hdr[1]) {  in mei_irq_read_handler()
402 			dev->rd_msg_hdr[1] = mei_read_hdr(dev);  in mei_irq_read_handler()
403 			dev->rd_msg_hdr_count++;  in mei_irq_read_handler()
405 			dev_dbg(dev->dev, "extended header is %08x\n", dev->rd_msg_hdr[1]);  in mei_irq_read_handler()
407 		meta_hdr = ((struct mei_ext_meta_hdr *)&dev->rd_msg_hdr[1]);  in mei_irq_read_handler()
411 			dev_err(dev->dev, "extended message size too big %d\n",  in mei_irq_read_handler()
416 			dev_err(dev->dev, "corrupted message header len %d\n",  in mei_irq_read_handler()
423 		for (i = dev->rd_msg_hdr_count; i < ext_hdr_end; i++) {  in mei_irq_read_handler()
424 			dev->rd_msg_hdr[i] = mei_read_hdr(dev);  in mei_irq_read_handler()
425 			dev_dbg(dev->dev, "extended header %d is %08x\n", i,  in mei_irq_read_handler()
426 				dev->rd_msg_hdr[i]);  in mei_irq_read_handler()
427 			dev->rd_msg_hdr_count++;  in mei_irq_read_handler()
433 		if (hdr_size_left != sizeof(dev->rd_msg_hdr[ext_hdr_end])) {  in mei_irq_read_handler()
434 			dev_err(dev->dev, "corrupted message header len %d\n",  in mei_irq_read_handler()
439 		dev->rd_msg_hdr[ext_hdr_end] = mei_read_hdr(dev);  in mei_irq_read_handler()
440 		dev->rd_msg_hdr_count++;  in mei_irq_read_handler()
442 		mei_hdr->length -= sizeof(dev->rd_msg_hdr[ext_hdr_end]);  in mei_irq_read_handler()
447 		ret = mei_hbm_dispatch(dev, mei_hdr);  in mei_irq_read_handler()
449 			dev_dbg(dev->dev, "mei_hbm_dispatch failed ret = %d\n",  in mei_irq_read_handler()
457 	list_for_each_entry(cl, &dev->file_list, link) {  in mei_irq_read_handler()
459 			cl_dbg(dev, cl, "got a message\n");  in mei_irq_read_handler()
472 	    dev->dev_state == MEI_DEV_POWER_DOWN) {  in mei_irq_read_handler()
473 		mei_irq_discard_msg(dev, mei_hdr, mei_hdr->length);  in mei_irq_read_handler()
477 	dev_err(dev->dev, "no destination client found 0x%08X\n", dev->rd_msg_hdr[0]);  in mei_irq_read_handler()
483 	memset(dev->rd_msg_hdr, 0, sizeof(dev->rd_msg_hdr));  in mei_irq_read_handler()
484 	dev->rd_msg_hdr_count = 0;  in mei_irq_read_handler()
485 	*slots = mei_count_full_read_slots(dev);  in mei_irq_read_handler()
488 		dev_err(dev->dev, "resetting due to slots overflow.\n");  in mei_irq_read_handler()
508 int mei_irq_write_handler(struct mei_device *dev, struct list_head *cmpl_list)  in mei_irq_write_handler()  argument
517 	if (!mei_hbuf_acquire(dev))  in mei_irq_write_handler()
520 	slots = mei_hbuf_empty_slots(dev);  in mei_irq_write_handler()
528 	dev_dbg(dev->dev, "complete all waiting for write cb.\n");  in mei_irq_write_handler()
530 	list_for_each_entry_safe(cb, next, &dev->write_waiting_list, list) {  in mei_irq_write_handler()
534 		cl_dbg(dev, cl, "MEI WRITE COMPLETE\n");  in mei_irq_write_handler()
540 	dev_dbg(dev->dev, "complete control write list cb.\n");  in mei_irq_write_handler()
541 	list_for_each_entry_safe(cb, next, &dev->ctrl_wr_list, list) {  in mei_irq_write_handler()
594 	dev_dbg(dev->dev, "complete write list cb.\n");  in mei_irq_write_handler()
595 	list_for_each_entry_safe(cb, next, &dev->write_list, list) {  in mei_irq_write_handler()
613 	struct mei_device *dev = cl->dev;  in mei_connect_timeout()  local
616 		if (dev->hbm_f_dot_supported) {  in mei_connect_timeout()
622 	mei_reset(dev);  in mei_connect_timeout()
633 void mei_schedule_stall_timer(struct mei_device *dev)  in mei_schedule_stall_timer()  argument
635 	schedule_delayed_work(&dev->timer_work, MEI_STALL_TIMER_FREQ);  in mei_schedule_stall_timer()
647 	struct mei_device *dev = container_of(work,  in mei_timer()  local
651 	mutex_lock(&dev->device_lock);  in mei_timer()
654 	if (dev->dev_state == MEI_DEV_INIT_CLIENTS &&  in mei_timer()
655 	    dev->hbm_state != MEI_HBM_IDLE) {  in mei_timer()
657 		if (dev->init_clients_timer) {  in mei_timer()
658 			if (--dev->init_clients_timer == 0) {  in mei_timer()
659 				dev_err(dev->dev, "timer: init clients timeout hbm_state = %d.\n",  in mei_timer()
660 					dev->hbm_state);  in mei_timer()
661 				mei_reset(dev);  in mei_timer()
668 	if (dev->dev_state != MEI_DEV_ENABLED)  in mei_timer()
672 	list_for_each_entry(cl, &dev->file_list, link) {  in mei_timer()
675 				dev_err(dev->dev, "timer: connect/disconnect timeout.\n");  in mei_timer()
684 	if (dev->dev_state != MEI_DEV_DISABLED && reschedule_timer)  in mei_timer()
685 		mei_schedule_stall_timer(dev);  in mei_timer()
687 	mutex_unlock(&dev->device_lock);  in mei_timer()