23 	struct avs_ipc *ipc = adev->ipc;  in avs_dsp_set_d0ix()  local
27 	if (ipc->in_d0ix == enable)  in avs_dsp_set_d0ix()
32 		/* Prevent further d0ix attempts on conscious IPC failure. */  in avs_dsp_set_d0ix()
34 			atomic_inc(&ipc->d0ix_disable_depth);  in avs_dsp_set_d0ix()
36 		ipc->in_d0ix = false;  in avs_dsp_set_d0ix()
40 	ipc->in_d0ix = enable;  in avs_dsp_set_d0ix()
46 	if (atomic_read(&adev->ipc->d0ix_disable_depth))  in avs_dsp_schedule_d0ix()
49 	mod_delayed_work(system_power_efficient_wq, &adev->ipc->d0ix_work,  in avs_dsp_schedule_d0ix()
55 	struct avs_ipc *ipc = container_of(work, struct avs_ipc, d0ix_work.work);  in avs_dsp_d0ix_work()  local
57 	avs_dsp_set_d0ix(to_avs_dev(ipc->dev), true);  in avs_dsp_d0ix_work()
62 	struct avs_ipc *ipc = adev->ipc;  in avs_dsp_wake_d0i0()  local
64 	if (!atomic_read(&ipc->d0ix_disable_depth)) {  in avs_dsp_wake_d0i0()
65 		cancel_delayed_work_sync(&ipc->d0ix_work);  in avs_dsp_wake_d0i0()
74 	struct avs_ipc *ipc = adev->ipc;  in avs_dsp_disable_d0ix()  local
77 	if (atomic_inc_return(&ipc->d0ix_disable_depth) == 1) {  in avs_dsp_disable_d0ix()
78 		cancel_delayed_work_sync(&ipc->d0ix_work);  in avs_dsp_disable_d0ix()
87 	struct avs_ipc *ipc = adev->ipc;  in avs_dsp_enable_d0ix()  local
89 	if (atomic_dec_and_test(&ipc->d0ix_disable_depth))  in avs_dsp_enable_d0ix()
90 		queue_delayed_work(system_power_efficient_wq, &ipc->d0ix_work,  in avs_dsp_enable_d0ix()
148 	atomic_set(&adev->ipc->recovering, 0);  in avs_dsp_recovery()
153 	struct avs_ipc *ipc = container_of(work, struct avs_ipc, recovery_work);  in avs_dsp_recovery_work()  local
155 	avs_dsp_recovery(to_avs_dev(ipc->dev));  in avs_dsp_recovery_work()
160 	struct avs_ipc *ipc = adev->ipc;  in avs_dsp_exception_caught()  local
163 	ipc->ready = false;  in avs_dsp_exception_caught()
165 	if (!atomic_add_unless(&ipc->recovering, 1, 1)) {  in avs_dsp_exception_caught()
172 	cancel_delayed_work_sync(&ipc->d0ix_work);  in avs_dsp_exception_caught()
173 	ipc->in_d0ix = false;  in avs_dsp_exception_caught()
180 	schedule_work(&ipc->recovery_work);  in avs_dsp_exception_caught()
185 	struct avs_ipc *ipc = adev->ipc;  in avs_dsp_receive_rx()  local
193 	ipc->rx.header = header;  in avs_dsp_receive_rx()
199 			ipc->rx.size = min_t(u32, AVS_MAILBOX_SIZE,  in avs_dsp_receive_rx()
202 		memcpy_fromio(ipc->rx.data, avs_uplink_addr(adev), ipc->rx.size);  in avs_dsp_receive_rx()
203 		trace_avs_msg_payload(ipc->rx.data, ipc->rx.size);  in avs_dsp_receive_rx()
220 	if (!adev->ipc->ready && msg.notify_msg_type != AVS_NOTIFY_FW_READY) {  in avs_dsp_process_notification()
266 		adev->ipc->ready = true;  in avs_dsp_process_notification()
287 	struct avs_ipc *ipc = adev->ipc;  in avs_dsp_process_response()  local
295 		spin_lock_irq(&ipc->rx_lock);  in avs_dsp_process_response()
297 		ipc->rx_completed = true;  in avs_dsp_process_response()
298 		spin_unlock_irq(&ipc->rx_lock);  in avs_dsp_process_response()
303 	complete(&ipc->busy_completion);  in avs_dsp_process_response()
306 static bool avs_ipc_is_busy(struct avs_ipc *ipc)  in avs_ipc_is_busy()  argument
308 	struct avs_dev *adev = to_avs_dev(ipc->dev);  in avs_ipc_is_busy()
316 static int avs_ipc_wait_busy_completion(struct avs_ipc *ipc, int timeout)  in avs_ipc_wait_busy_completion()  argument
322 	ret = wait_for_completion_timeout(&ipc->busy_completion, msecs_to_jiffies(timeout));  in avs_ipc_wait_busy_completion()
325 	if (!ipc->ready)  in avs_ipc_wait_busy_completion()
329 		if (!avs_ipc_is_busy(ipc))  in avs_ipc_wait_busy_completion()
335 		wait_for_completion_killable(&ipc->busy_completion);  in avs_ipc_wait_busy_completion()
339 	spin_lock(&ipc->rx_lock);  in avs_ipc_wait_busy_completion()
340 	if (!ipc->rx_completed) {  in avs_ipc_wait_busy_completion()
344 			reinit_completion(&ipc->busy_completion);  in avs_ipc_wait_busy_completion()
345 			spin_unlock(&ipc->rx_lock);  in avs_ipc_wait_busy_completion()
349 		spin_unlock(&ipc->rx_lock);  in avs_ipc_wait_busy_completion()
353 	spin_unlock(&ipc->rx_lock);  in avs_ipc_wait_busy_completion()
357 static void avs_ipc_msg_init(struct avs_ipc *ipc, struct avs_ipc_msg *reply)  in avs_ipc_msg_init()  argument
359 	lockdep_assert_held(&ipc->rx_lock);  in avs_ipc_msg_init()
361 	ipc->rx.header = 0;  in avs_ipc_msg_init()
362 	ipc->rx.size = reply ? reply->size : 0;  in avs_ipc_msg_init()
363 	ipc->rx_completed = false;  in avs_ipc_msg_init()
365 	reinit_completion(&ipc->done_completion);  in avs_ipc_msg_init()
366 	reinit_completion(&ipc->busy_completion);  in avs_ipc_msg_init()
392 	struct avs_ipc *ipc = adev->ipc;  in avs_dsp_do_send_msg()  local
395 	if (!ipc->ready)  in avs_dsp_do_send_msg()
398 	mutex_lock(&ipc->msg_mutex);  in avs_dsp_do_send_msg()
400 	spin_lock(&ipc->rx_lock);  in avs_dsp_do_send_msg()
401 	avs_ipc_msg_init(ipc, reply);  in avs_dsp_do_send_msg()
403 	spin_unlock(&ipc->rx_lock);  in avs_dsp_do_send_msg()
405 	ret = avs_ipc_wait_busy_completion(ipc, timeout);  in avs_dsp_do_send_msg()
416 	ret = ipc->rx.rsp.status;  in avs_dsp_do_send_msg()
418 	 * If IPC channel is blocked e.g.: due to ongoing recovery,  in avs_dsp_do_send_msg()
431 		reply->header = ipc->rx.header;  in avs_dsp_do_send_msg()
432 		reply->size = ipc->rx.size;  in avs_dsp_do_send_msg()
433 		if (reply->data && ipc->rx.size)  in avs_dsp_do_send_msg()
434 			memcpy(reply->data, ipc->rx.data, reply->size);  in avs_dsp_do_send_msg()
438 	mutex_unlock(&ipc->msg_mutex);  in avs_dsp_do_send_msg()
479 	return avs_dsp_send_msg_timeout(adev, request, reply, adev->ipc->default_timeout_ms, name);  in avs_dsp_send_msg()
492 	return avs_dsp_send_pm_msg_timeout(adev, request, reply, adev->ipc->default_timeout_ms,  in avs_dsp_send_pm_msg()
499 	struct avs_ipc *ipc = adev->ipc;  in avs_dsp_do_send_rom_msg()  local
502 	mutex_lock(&ipc->msg_mutex);  in avs_dsp_do_send_rom_msg()
504 	spin_lock(&ipc->rx_lock);  in avs_dsp_do_send_rom_msg()
505 	avs_ipc_msg_init(ipc, NULL);  in avs_dsp_do_send_rom_msg()
511 	spin_unlock(&ipc->rx_lock);  in avs_dsp_do_send_rom_msg()
516 		ret = wait_for_completion_timeout(&ipc->done_completion, msecs_to_jiffies(timeout));  in avs_dsp_do_send_rom_msg()
523 	mutex_unlock(&ipc->msg_mutex);  in avs_dsp_do_send_rom_msg()
536 	return avs_dsp_send_rom_msg_timeout(adev, request, adev->ipc->default_timeout_ms, name);  in avs_dsp_send_rom_msg()
556 int avs_ipc_init(struct avs_ipc *ipc, struct device *dev)  in avs_ipc_init()  argument
558 	ipc->rx.data = devm_kzalloc(dev, AVS_MAILBOX_SIZE, GFP_KERNEL);  in avs_ipc_init()
559 	if (!ipc->rx.data)  in avs_ipc_init()
562 	ipc->dev = dev;  in avs_ipc_init()
563 	ipc->ready = false;  in avs_ipc_init()
564 	ipc->default_timeout_ms = AVS_IPC_TIMEOUT_MS;  in avs_ipc_init()
565 	INIT_WORK(&ipc->recovery_work, avs_dsp_recovery_work);  in avs_ipc_init()
566 	INIT_DELAYED_WORK(&ipc->d0ix_work, avs_dsp_d0ix_work);  in avs_ipc_init()
567 	init_completion(&ipc->done_completion);  in avs_ipc_init()
568 	init_completion(&ipc->busy_completion);  in avs_ipc_init()
569 	spin_lock_init(&ipc->rx_lock);  in avs_ipc_init()
570 	mutex_init(&ipc->msg_mutex);  in avs_ipc_init()
575 void avs_ipc_block(struct avs_ipc *ipc)  in avs_ipc_block()  argument
577 	ipc->ready = false;  in avs_ipc_block()
578 	cancel_work_sync(&ipc->recovery_work);  in avs_ipc_block()
579 	cancel_delayed_work_sync(&ipc->d0ix_work);  in avs_ipc_block()
580 	ipc->in_d0ix = false;  in avs_ipc_block()