87 	struct switchtec_user *stuser;  in stuser_create()  local
89 	stuser = kzalloc_obj(*stuser);  in stuser_create()
90 	if (!stuser)  in stuser_create()
94 	stuser->stdev = stdev;  in stuser_create()
95 	kref_init(&stuser->kref);  in stuser_create()
96 	INIT_LIST_HEAD(&stuser->list);  in stuser_create()
97 	init_waitqueue_head(&stuser->cmd_comp);  in stuser_create()
98 	stuser->event_cnt = atomic_read(&stdev->event_cnt);  in stuser_create()
100 	dev_dbg(&stdev->dev, "%s: %p\n", __func__, stuser);  in stuser_create()
102 	return stuser;  in stuser_create()
107 	struct switchtec_user *stuser;  in stuser_free()  local
109 	stuser = container_of(kref, struct switchtec_user, kref);  in stuser_free()
111 	dev_dbg(&stuser->stdev->dev, "%s: %p\n", __func__, stuser);  in stuser_free()
113 	put_device(&stuser->stdev->dev);  in stuser_free()
114 	kfree(stuser);  in stuser_free()
117 static void stuser_put(struct switchtec_user *stuser)  in stuser_put()  argument
119 	kref_put(&stuser->kref, stuser_free);  in stuser_put()
122 static void stuser_set_state(struct switchtec_user *stuser,  in stuser_set_state()  argument
135 	stuser->state = state;  in stuser_set_state()
137 	dev_dbg(&stuser->stdev->dev, "stuser state %p -> %s",  in stuser_set_state()
138 		stuser, state_names[state]);  in stuser_set_state()
160 	struct switchtec_user *stuser;  in mrpc_cmd_submit()  local
168 	stuser = list_entry(stdev->mrpc_queue.next, struct switchtec_user,  in mrpc_cmd_submit()
176 	stuser_set_state(stuser, MRPC_RUNNING);  in mrpc_cmd_submit()
179 		    stuser->data, stuser->data_len);  in mrpc_cmd_submit()
181 	iowrite32(stuser->cmd, &stdev->mmio_mrpc->cmd);  in mrpc_cmd_submit()
187 static int mrpc_queue_cmd(struct switchtec_user *stuser)  in mrpc_queue_cmd()  argument
191 	struct switchtec_dev *stdev = stuser->stdev;  in mrpc_queue_cmd()
193 	kref_get(&stuser->kref);  in mrpc_queue_cmd()
194 	stuser->read_len = sizeof(stuser->data);  in mrpc_queue_cmd()
195 	stuser_set_state(stuser, MRPC_QUEUED);  in mrpc_queue_cmd()
196 	stuser->cmd_done = false;  in mrpc_queue_cmd()
197 	list_add_tail(&stuser->list, &stdev->mrpc_queue);  in mrpc_queue_cmd()
208 	struct switchtec_user *stuser = list_entry(stdev->mrpc_queue.next,  in mrpc_cleanup_cmd()  local
211 	stuser->cmd_done = true;  in mrpc_cleanup_cmd()
212 	wake_up_interruptible(&stuser->cmd_comp);  in mrpc_cleanup_cmd()
213 	list_del_init(&stuser->list);  in mrpc_cleanup_cmd()
214 	stuser_put(stuser);  in mrpc_cleanup_cmd()
224 	struct switchtec_user *stuser;  in mrpc_complete_cmd()  local
229 	stuser = list_entry(stdev->mrpc_queue.next, struct switchtec_user,  in mrpc_complete_cmd()
233 		stuser->status = stdev->dma_mrpc->status;  in mrpc_complete_cmd()
235 		stuser->status = ioread32(&stdev->mmio_mrpc->status);  in mrpc_complete_cmd()
237 	if (stuser->status == SWITCHTEC_MRPC_STATUS_INPROGRESS)  in mrpc_complete_cmd()
240 	stuser_set_state(stuser, MRPC_DONE);  in mrpc_complete_cmd()
241 	stuser->return_code = 0;  in mrpc_complete_cmd()
243 	if (stuser->status != SWITCHTEC_MRPC_STATUS_DONE &&  in mrpc_complete_cmd()
244 	    stuser->status != SWITCHTEC_MRPC_STATUS_ERROR)  in mrpc_complete_cmd()
248 		stuser->return_code = stdev->dma_mrpc->rtn_code;  in mrpc_complete_cmd()
250 		stuser->return_code = ioread32(&stdev->mmio_mrpc->ret_value);  in mrpc_complete_cmd()
251 	if (stuser->return_code != 0)  in mrpc_complete_cmd()
255 		memcpy(stuser->data, &stdev->dma_mrpc->data,  in mrpc_complete_cmd()
256 			      stuser->read_len);  in mrpc_complete_cmd()
258 		memcpy_fromio(stuser->data, &stdev->mmio_mrpc->output_data,  in mrpc_complete_cmd()
259 			      stuser->read_len);  in mrpc_complete_cmd()
281 	struct switchtec_user *stuser;  in mrpc_error_complete_cmd()  local
286 	stuser = list_entry(stdev->mrpc_queue.next,  in mrpc_error_complete_cmd()
289 	stuser_set_state(stuser, MRPC_IO_ERROR);  in mrpc_error_complete_cmd()
469 	struct switchtec_user *stuser;  in switchtec_dev_open()  local
473 	stuser = stuser_create(stdev);  in switchtec_dev_open()
474 	if (IS_ERR(stuser))  in switchtec_dev_open()
475 		return PTR_ERR(stuser);  in switchtec_dev_open()
477 	filp->private_data = stuser;  in switchtec_dev_open()
480 	dev_dbg(&stdev->dev, "%s: %p\n", __func__, stuser);  in switchtec_dev_open()
487 	struct switchtec_user *stuser = filp->private_data;  in switchtec_dev_release()  local
489 	stuser_put(stuser);  in switchtec_dev_release()
510 	struct switchtec_user *stuser = filp->private_data;  in switchtec_dev_write()  local
511 	struct switchtec_dev *stdev = stuser->stdev;  in switchtec_dev_write()
514 	if (size < sizeof(stuser->cmd) ||  in switchtec_dev_write()
515 	    size > sizeof(stuser->cmd) + sizeof(stuser->data))  in switchtec_dev_write()
518 	stuser->data_len = size - sizeof(stuser->cmd);  in switchtec_dev_write()
524 	if (stuser->state != MRPC_IDLE) {  in switchtec_dev_write()
529 	rc = copy_from_user(&stuser->cmd, data, sizeof(stuser->cmd));  in switchtec_dev_write()
534 	if (((MRPC_CMD_ID(stuser->cmd) == MRPC_GAS_WRITE) ||  in switchtec_dev_write()
535 	     (MRPC_CMD_ID(stuser->cmd) == MRPC_GAS_READ)) &&  in switchtec_dev_write()
541 	data += sizeof(stuser->cmd);  in switchtec_dev_write()
542 	rc = copy_from_user(&stuser->data, data, size - sizeof(stuser->cmd));  in switchtec_dev_write()
548 	rc = mrpc_queue_cmd(stuser);  in switchtec_dev_write()
562 	struct switchtec_user *stuser = filp->private_data;  in switchtec_dev_read()  local
563 	struct switchtec_dev *stdev = stuser->stdev;  in switchtec_dev_read()
566 	if (size < sizeof(stuser->cmd) ||  in switchtec_dev_read()
567 	    size > sizeof(stuser->cmd) + sizeof(stuser->data))  in switchtec_dev_read()
574 	if (stuser->state == MRPC_IDLE) {  in switchtec_dev_read()
579 	stuser->read_len = size - sizeof(stuser->return_code);  in switchtec_dev_read()
584 		if (!stuser->cmd_done)  in switchtec_dev_read()
587 		rc = wait_event_interruptible(stuser->cmd_comp,  in switchtec_dev_read()
588 					      stuser->cmd_done);  in switchtec_dev_read()
597 	if (stuser->state == MRPC_IO_ERROR) {  in switchtec_dev_read()
602 	if (stuser->state != MRPC_DONE) {  in switchtec_dev_read()
607 	rc = copy_to_user(data, &stuser->return_code,  in switchtec_dev_read()
608 			  sizeof(stuser->return_code));  in switchtec_dev_read()
614 	data += sizeof(stuser->return_code);  in switchtec_dev_read()
615 	rc = copy_to_user(data, &stuser->data,  in switchtec_dev_read()
616 			  size - sizeof(stuser->return_code));  in switchtec_dev_read()
622 	stuser_set_state(stuser, MRPC_IDLE);  in switchtec_dev_read()
626 	if (stuser->status == SWITCHTEC_MRPC_STATUS_DONE ||  in switchtec_dev_read()
627 	    stuser->status == SWITCHTEC_MRPC_STATUS_ERROR)  in switchtec_dev_read()
629 	else if (stuser->status == SWITCHTEC_MRPC_STATUS_INTERRUPTED)  in switchtec_dev_read()
637 	struct switchtec_user *stuser = filp->private_data;  in switchtec_dev_poll()  local
638 	struct switchtec_dev *stdev = stuser->stdev;  in switchtec_dev_poll()
641 	poll_wait(filp, &stuser->cmd_comp, wait);  in switchtec_dev_poll()
649 	if (stuser->cmd_done)  in switchtec_dev_poll()
652 	if (stuser->event_cnt != atomic_read(&stdev->event_cnt))  in switchtec_dev_poll()
889 	struct switchtec_user *stuser,  in ioctl_event_summary()  argument
921 	stuser->event_cnt = atomic_read(&stdev->event_cnt);  in ioctl_event_summary()
1205 	struct switchtec_user *stuser = filp->private_data;  in switchtec_dev_ioctl()  local
1206 	struct switchtec_dev *stdev = stuser->stdev;  in switchtec_dev_ioctl()
1222 		rc = ioctl_event_summary(stdev, stuser, argp,  in switchtec_dev_ioctl()
1235 		rc = ioctl_event_summary(stdev, stuser, argp,  in switchtec_dev_ioctl()
1317 	struct switchtec_user *stuser, *tmpuser;  in stdev_kill()  local
1328 		list_for_each_entry_safe(stuser, tmpuser, &stdev->mrpc_queue, list) {  in stdev_kill()
1329 			stuser->cmd_done = true;  in stdev_kill()
1330 			wake_up_interruptible(&stuser->cmd_comp);  in stdev_kill()
1331 			list_del_init(&stuser->list);  in stdev_kill()
1332 			stuser_put(stuser);  in stdev_kill()