18 void ipc_pm_signal_hpda_doorbell(struct iosm_pm *ipc_pm, u32 identifier,  in ipc_pm_signal_hpda_doorbell()  argument
21 	if (host_slp_check && ipc_pm->host_pm_state != IPC_MEM_HOST_PM_ACTIVE &&  in ipc_pm_signal_hpda_doorbell()
22 	    ipc_pm->host_pm_state != IPC_MEM_HOST_PM_ACTIVE_WAIT) {  in ipc_pm_signal_hpda_doorbell()
23 		ipc_pm->pending_hpda_update = true;  in ipc_pm_signal_hpda_doorbell()
24 		dev_dbg(ipc_pm->dev,  in ipc_pm_signal_hpda_doorbell()
26 			ipc_pm->host_pm_state, identifier);  in ipc_pm_signal_hpda_doorbell()
30 	if (!ipc_pm_trigger(ipc_pm, IPC_PM_UNIT_IRQ, true)) {  in ipc_pm_signal_hpda_doorbell()
31 		ipc_pm->pending_hpda_update = true;  in ipc_pm_signal_hpda_doorbell()
32 		dev_dbg(ipc_pm->dev, "Pending HPDA update set. identifier:%d",  in ipc_pm_signal_hpda_doorbell()
36 	ipc_pm->pending_hpda_update = false;  in ipc_pm_signal_hpda_doorbell()
39 	ipc_cp_irq_hpda_update(ipc_pm->pcie, identifier);  in ipc_pm_signal_hpda_doorbell()
41 	ipc_pm_trigger(ipc_pm, IPC_PM_UNIT_IRQ, false);  in ipc_pm_signal_hpda_doorbell()
45 static bool ipc_pm_link_activate(struct iosm_pm *ipc_pm)  in ipc_pm_link_activate()  argument
47 	if (ipc_pm->cp_state == IPC_MEM_DEV_PM_ACTIVE)  in ipc_pm_link_activate()
50 	if (ipc_pm->cp_state == IPC_MEM_DEV_PM_SLEEP) {  in ipc_pm_link_activate()
51 		if (ipc_pm->ap_state == IPC_MEM_DEV_PM_SLEEP) {  in ipc_pm_link_activate()
53 			ipc_cp_irq_sleep_control(ipc_pm->pcie,  in ipc_pm_link_activate()
55 			ipc_pm->ap_state = IPC_MEM_DEV_PM_ACTIVE_WAIT;  in ipc_pm_link_activate()
60 		if (ipc_pm->ap_state == IPC_MEM_DEV_PM_ACTIVE_WAIT)  in ipc_pm_link_activate()
71 bool ipc_pm_wait_for_device_active(struct iosm_pm *ipc_pm)  in ipc_pm_wait_for_device_active()  argument
75 	if (ipc_pm->ap_state != IPC_MEM_DEV_PM_ACTIVE) {  in ipc_pm_wait_for_device_active()
82 		set_bit(0, &ipc_pm->host_sleep_pend);  in ipc_pm_wait_for_device_active()
88 		   (&ipc_pm->host_sleep_complete,  in ipc_pm_wait_for_device_active()
90 			dev_err(ipc_pm->dev,  in ipc_pm_wait_for_device_active()
92 				IPC_MEM_DEV_PM_ACTIVE, ipc_pm->ap_state);  in ipc_pm_wait_for_device_active()
105 	clear_bit(0, &ipc_pm->host_sleep_pend);  in ipc_pm_wait_for_device_active()
113 static void ipc_pm_on_link_sleep(struct iosm_pm *ipc_pm)  in ipc_pm_on_link_sleep()  argument
118 	ipc_pm->cp_state = IPC_MEM_DEV_PM_SLEEP;  in ipc_pm_on_link_sleep()
119 	ipc_pm->ap_state = IPC_MEM_DEV_PM_SLEEP;  in ipc_pm_on_link_sleep()
121 	ipc_cp_irq_sleep_control(ipc_pm->pcie, IPC_MEM_DEV_PM_SLEEP);  in ipc_pm_on_link_sleep()
124 static void ipc_pm_on_link_wake(struct iosm_pm *ipc_pm, bool ack)  in ipc_pm_on_link_wake()  argument
126 	ipc_pm->ap_state = IPC_MEM_DEV_PM_ACTIVE;  in ipc_pm_on_link_wake()
129 		ipc_pm->cp_state = IPC_MEM_DEV_PM_ACTIVE;  in ipc_pm_on_link_wake()
131 		ipc_cp_irq_sleep_control(ipc_pm->pcie, IPC_MEM_DEV_PM_ACTIVE);  in ipc_pm_on_link_wake()
134 		if (test_bit(CONSUME_STATE, &ipc_pm->host_sleep_pend))  in ipc_pm_on_link_wake()
135 			complete(&ipc_pm->host_sleep_complete);  in ipc_pm_on_link_wake()
144 	if (ipc_pm->pending_hpda_update &&  in ipc_pm_on_link_wake()
145 	    ipc_pm->host_pm_state == IPC_MEM_HOST_PM_ACTIVE)  in ipc_pm_on_link_wake()
146 		ipc_pm_signal_hpda_doorbell(ipc_pm, IPC_HP_PM_TRIGGER, true);  in ipc_pm_on_link_wake()
149 bool ipc_pm_trigger(struct iosm_pm *ipc_pm, enum ipc_pm_unit unit, bool active)  in ipc_pm_trigger()  argument
156 	new_cond = ipc_pm->pm_cond;  in ipc_pm_trigger()
157 	old_cond = ipc_pm->pm_cond;  in ipc_pm_trigger()
184 	ipc_pm->pm_cond = new_cond;  in ipc_pm_trigger()
187 		ipc_pm_on_link_wake(ipc_pm, unit == IPC_PM_UNIT_LINK);  in ipc_pm_trigger()
189 		ipc_pm_on_link_sleep(ipc_pm);  in ipc_pm_trigger()
192 		link_active = ipc_pm_link_activate(ipc_pm);  in ipc_pm_trigger()
202 bool ipc_pm_prepare_host_sleep(struct iosm_pm *ipc_pm)  in ipc_pm_prepare_host_sleep()  argument
205 	if (ipc_pm->host_pm_state != IPC_MEM_HOST_PM_ACTIVE) {  in ipc_pm_prepare_host_sleep()
206 		dev_err(ipc_pm->dev, "host_pm_state=%d\tExpected to be: %d",  in ipc_pm_prepare_host_sleep()
207 			ipc_pm->host_pm_state, IPC_MEM_HOST_PM_ACTIVE);  in ipc_pm_prepare_host_sleep()
211 	ipc_pm->host_pm_state = IPC_MEM_HOST_PM_SLEEP_WAIT_D3;  in ipc_pm_prepare_host_sleep()
216 bool ipc_pm_prepare_host_active(struct iosm_pm *ipc_pm)  in ipc_pm_prepare_host_active()  argument
218 	if (ipc_pm->host_pm_state != IPC_MEM_HOST_PM_SLEEP) {  in ipc_pm_prepare_host_active()
219 		dev_err(ipc_pm->dev, "host_pm_state=%d\tExpected to be: %d",  in ipc_pm_prepare_host_active()
220 			ipc_pm->host_pm_state, IPC_MEM_HOST_PM_SLEEP);  in ipc_pm_prepare_host_active()
225 	ipc_pm->host_pm_state = IPC_MEM_HOST_PM_ACTIVE_WAIT;  in ipc_pm_prepare_host_active()
230 void ipc_pm_set_s2idle_sleep(struct iosm_pm *ipc_pm, bool sleep)  in ipc_pm_set_s2idle_sleep()  argument
233 		ipc_pm->ap_state = IPC_MEM_DEV_PM_SLEEP;  in ipc_pm_set_s2idle_sleep()
234 		ipc_pm->cp_state = IPC_MEM_DEV_PM_SLEEP;  in ipc_pm_set_s2idle_sleep()
235 		ipc_pm->device_sleep_notification = IPC_MEM_DEV_PM_SLEEP;  in ipc_pm_set_s2idle_sleep()
237 		ipc_pm->ap_state = IPC_MEM_DEV_PM_ACTIVE;  in ipc_pm_set_s2idle_sleep()
238 		ipc_pm->cp_state = IPC_MEM_DEV_PM_ACTIVE;  in ipc_pm_set_s2idle_sleep()
239 		ipc_pm->device_sleep_notification = IPC_MEM_DEV_PM_ACTIVE;  in ipc_pm_set_s2idle_sleep()
240 		ipc_pm->pm_cond.link = IPC_PM_ACTIVE;  in ipc_pm_set_s2idle_sleep()
244 bool ipc_pm_dev_slp_notification(struct iosm_pm *ipc_pm, u32 cp_pm_req)  in ipc_pm_dev_slp_notification()  argument
246 	if (cp_pm_req == ipc_pm->device_sleep_notification)  in ipc_pm_dev_slp_notification()
249 	ipc_pm->device_sleep_notification = cp_pm_req;  in ipc_pm_dev_slp_notification()
252 	switch (ipc_pm->cp_state) {  in ipc_pm_dev_slp_notification()
260 			ipc_pm_trigger(ipc_pm, IPC_PM_UNIT_LINK, false);  in ipc_pm_dev_slp_notification()
264 			dev_err(ipc_pm->dev,  in ipc_pm_dev_slp_notification()
266 				ipc_pm->cp_state, cp_pm_req);  in ipc_pm_dev_slp_notification()
275 			ipc_pm_trigger(ipc_pm, IPC_PM_UNIT_LINK, true);  in ipc_pm_dev_slp_notification()
282 			dev_err(ipc_pm->dev,  in ipc_pm_dev_slp_notification()
284 				ipc_pm->cp_state, cp_pm_req);  in ipc_pm_dev_slp_notification()
290 		dev_err(ipc_pm->dev, "confused loc-pm=%d, req-pm=%d",  in ipc_pm_dev_slp_notification()
291 			ipc_pm->cp_state, cp_pm_req);  in ipc_pm_dev_slp_notification()
301 	struct iosm_pm *ipc_pm = &ipc_protocol->pm;  in ipc_pm_init()  local
303 	ipc_pm->pcie = ipc_imem->pcie;  in ipc_pm_init()
304 	ipc_pm->dev = ipc_imem->dev;  in ipc_pm_init()
306 	ipc_pm->pm_cond.irq = IPC_PM_SLEEP;  in ipc_pm_init()
307 	ipc_pm->pm_cond.hs = IPC_PM_SLEEP;  in ipc_pm_init()
308 	ipc_pm->pm_cond.link = IPC_PM_ACTIVE;  in ipc_pm_init()
310 	ipc_pm->cp_state = IPC_MEM_DEV_PM_ACTIVE;  in ipc_pm_init()
311 	ipc_pm->ap_state = IPC_MEM_DEV_PM_ACTIVE;  in ipc_pm_init()
312 	ipc_pm->host_pm_state = IPC_MEM_HOST_PM_ACTIVE;  in ipc_pm_init()
317 	init_completion(&ipc_pm->host_sleep_complete);  in ipc_pm_init()
322 	clear_bit(0, &ipc_pm->host_sleep_pend);  in ipc_pm_init()
330 	struct iosm_pm *ipc_pm = &proto->pm;  in ipc_pm_deinit()  local
332 	complete(&ipc_pm->host_sleep_complete);  in ipc_pm_deinit()