167 static bool valid_state(suspend_state_t state)  in valid_state()  argument
175 	return suspend_ops && suspend_ops->valid && suspend_ops->valid(state) &&  in valid_state()
193 	suspend_state_t state;  in mem_sleep_default_setup()  local
195 	for (state = PM_SUSPEND_TO_IDLE; state <= PM_SUSPEND_MEM; state++)  in mem_sleep_default_setup()
196 		if (mem_sleep_labels[state] &&  in mem_sleep_default_setup()
197 		    !strcmp(str, mem_sleep_labels[state])) {  in mem_sleep_default_setup()
198 			mem_sleep_default = state;  in mem_sleep_default_setup()
242 int suspend_valid_only_mem(suspend_state_t state)  in suspend_valid_only_mem()  argument
244 	return state == PM_SUSPEND_MEM;  in suspend_valid_only_mem()
248 static bool sleep_state_supported(suspend_state_t state)  in sleep_state_supported()  argument
250 	return state == PM_SUSPEND_TO_IDLE ||  in sleep_state_supported()
251 	       (valid_state(state) && !cxl_mem_active());  in sleep_state_supported()
254 static int platform_suspend_prepare(suspend_state_t state)  in platform_suspend_prepare()  argument
256 	return state != PM_SUSPEND_TO_IDLE && suspend_ops->prepare ?  in platform_suspend_prepare()
260 static int platform_suspend_prepare_late(suspend_state_t state)  in platform_suspend_prepare_late()  argument
262 	return state == PM_SUSPEND_TO_IDLE && s2idle_ops && s2idle_ops->prepare ?  in platform_suspend_prepare_late()
266 static int platform_suspend_prepare_noirq(suspend_state_t state)  in platform_suspend_prepare_noirq()  argument
268 	if (state == PM_SUSPEND_TO_IDLE)  in platform_suspend_prepare_noirq()
275 static void platform_resume_noirq(suspend_state_t state)  in platform_resume_noirq()  argument
277 	if (state == PM_SUSPEND_TO_IDLE) {  in platform_resume_noirq()
285 static void platform_resume_early(suspend_state_t state)  in platform_resume_early()  argument
287 	if (state == PM_SUSPEND_TO_IDLE && s2idle_ops && s2idle_ops->restore)  in platform_resume_early()
291 static void platform_resume_finish(suspend_state_t state)  in platform_resume_finish()  argument
293 	if (state != PM_SUSPEND_TO_IDLE && suspend_ops->finish)  in platform_resume_finish()
297 static int platform_suspend_begin(suspend_state_t state)  in platform_suspend_begin()  argument
299 	if (state == PM_SUSPEND_TO_IDLE && s2idle_ops && s2idle_ops->begin)  in platform_suspend_begin()
302 		return suspend_ops->begin(state);  in platform_suspend_begin()
307 static void platform_resume_end(suspend_state_t state)  in platform_resume_end()  argument
309 	if (state == PM_SUSPEND_TO_IDLE && s2idle_ops && s2idle_ops->end)  in platform_resume_end()
315 static void platform_recover(suspend_state_t state)  in platform_recover()  argument
317 	if (state != PM_SUSPEND_TO_IDLE && suspend_ops->recover)  in platform_recover()
321 static bool platform_suspend_again(suspend_state_t state)  in platform_suspend_again()  argument
323 	return state != PM_SUSPEND_TO_IDLE && suspend_ops->suspend_again ?  in platform_suspend_again()
355 static int suspend_prepare(suspend_state_t state)  in suspend_prepare()  argument
359 	if (!sleep_state_supported(state))  in suspend_prepare()
402 static int suspend_enter(suspend_state_t state, bool *wakeup)  in suspend_enter()  argument
406 	error = platform_suspend_prepare(state);  in suspend_enter()
419 	error = platform_suspend_prepare_late(state);  in suspend_enter()
432 	error = platform_suspend_prepare_noirq(state);  in suspend_enter()
439 	if (state == PM_SUSPEND_TO_IDLE) {  in suspend_enter()
460 				state, true);  in suspend_enter()
461 			error = suspend_ops->enter(state);  in suspend_enter()
463 				state, false);  in suspend_enter()
480 	platform_resume_noirq(state);  in suspend_enter()
484 	platform_resume_early(state);  in suspend_enter()
490 	platform_resume_finish(state);  in suspend_enter()
498 int suspend_devices_and_enter(suspend_state_t state)  in suspend_devices_and_enter()  argument
503 	if (!sleep_state_supported(state))  in suspend_devices_and_enter()
506 	pm_suspend_target_state = state;  in suspend_devices_and_enter()
508 	if (state == PM_SUSPEND_TO_IDLE)  in suspend_devices_and_enter()
511 	error = platform_suspend_begin(state);  in suspend_devices_and_enter()
529 		error = suspend_enter(state, &wakeup);  in suspend_devices_and_enter()
530 	} while (!error && !wakeup && platform_suspend_again(state));  in suspend_devices_and_enter()
537 	trace_suspend_resume(TPS("resume_console"), state, true);  in suspend_devices_and_enter()
539 	trace_suspend_resume(TPS("resume_console"), state, false);  in suspend_devices_and_enter()
542 	platform_resume_end(state);  in suspend_devices_and_enter()
548 	platform_recover(state);  in suspend_devices_and_enter()
573 static int enter_state(suspend_state_t state)  in enter_state()  argument
577 	trace_suspend_resume(TPS("suspend_enter"), state, true);  in enter_state()
578 	if (state == PM_SUSPEND_TO_IDLE) {  in enter_state()
585 	} else if (!valid_state(state)) {  in enter_state()
591 	if (state == PM_SUSPEND_TO_IDLE)  in enter_state()
600 	pm_pr_dbg("Preparing system for sleep (%s)\n", mem_sleep_labels[state]);  in enter_state()
602 	error = suspend_prepare(state);  in enter_state()
609 	trace_suspend_resume(TPS("suspend_enter"), state, false);  in enter_state()
610 	pm_pr_dbg("Suspending system (%s)\n", mem_sleep_labels[state]);  in enter_state()
612 	error = suspend_devices_and_enter(state);  in enter_state()
631 int pm_suspend(suspend_state_t state)  in pm_suspend()  argument
635 	if (state <= PM_SUSPEND_ON || state >= PM_SUSPEND_MAX)  in pm_suspend()
638 	pr_info("suspend entry (%s)\n", mem_sleep_labels[state]);  in pm_suspend()
639 	error = enter_state(state);  in pm_suspend()