drivers/firmware/arm_sdei.c

112 sdei_cross_call_return(struct sdei_crosscall_args *arg, int err)
114 	if (err && (atomic_inc_return(&arg->errors) == 1))
115 		arg->first_error = err;
141 	int err;
147 		err = sdei_to_linux_errno(res.a0);
155 		err = -EIO;
162 	return err;
201 	int err;
210 		err = -ENOMEM;
217 	err = sdei_api_event_get_info(event_num, SDEI_EVENT_INFO_EV_PRIORITY,
219 	if (err)
223 	err = sdei_api_event_get_info(event_num, SDEI_EVENT_INFO_EV_TYPE,
225 	if (err)
232 			err = -ENOMEM;
248 			err = -ENOMEM;
272 	return ERR_PTR(err);
304 	int err;
306 	err = invoke_sdei_fn(SDEI_1_0_FN_SDEI_PE_MASK, 0, 0, 0, 0, 0, NULL);
307 	if (err && err != -EIO) {
309 			      smp_processor_id(), err);
310 		return err;
324 	int err;
326 	err = invoke_sdei_fn(SDEI_1_0_FN_SDEI_PE_UNMASK, 0, 0, 0, 0, 0, NULL);
327 	if (err && err != -EIO) {
329 			     smp_processor_id(), err);
330 		return err;
344 	int err;
348 	err = invoke_sdei_fn(SDEI_1_0_FN_SDEI_PRIVATE_RESET, 0, 0, 0, 0, 0,
350 	if (err && err != -EIO)
352 			     smp_processor_id(), err);
370 	int err;
373 	err = sdei_api_shared_reset();
374 	if (err) {
375 		pr_err("Failed to reset platform: %d\n", err);
379 	return err;
391 	int err;
394 	err = sdei_api_event_enable(arg->event->event_num);
396 	sdei_cross_call_return(arg, err);
401 	int err = -EINVAL;
414 		err = sdei_api_event_enable(event->event_num);
416 		err = sdei_do_cross_call(_local_event_enable, event);
418 	if (!err) {
426 	return err;
437 	int err;
440 	err = sdei_api_event_disable(arg->event->event_num);
442 	sdei_cross_call_return(arg, err);
447 	int err = -EINVAL;
462 		err = sdei_api_event_disable(event->event_num);
464 		err = sdei_do_cross_call(_ipi_event_disable, event);
467 	return err;
479 	int err;
482 	err = sdei_api_event_unregister(arg->event->event_num);
484 	sdei_cross_call_return(arg, err);
489 	int err;
498 		err = -ENOENT;
508 		err = sdei_api_event_unregister(event->event_num);
510 		err = sdei_do_cross_call(_local_event_unregister, event);
512 	if (err)
519 	return err;
528 	int err = 0;
537 		err = sdei_api_event_unregister(event->event_num);
538 		if (err)
544 	return err;
558 	int err;
563 	err = sdei_api_event_register(arg->event->event_num, sdei_entry_point,
566 	sdei_cross_call_return(arg, err);
571 	int err;
579 		err = -EBUSY;
585 		err = PTR_ERR(event);
586 		pr_warn("Failed to create event %u: %d\n", event_num, err);
592 		err = sdei_api_event_register(event->event_num,
597 		err = sdei_do_cross_call(_local_event_register, event);
598 		if (err)
602 	if (err) {
604 		pr_warn("Failed to register event %u: %d\n", event_num, err);
615 	return err;
620 	int err = 0;
630 			err = sdei_api_event_register(event->event_num,
633 			if (err) {
642 			err = sdei_api_event_enable(event->event_num);
643 			if (err) {
653 	return err;
659 	int err;
667 		err = sdei_do_local_call(_local_event_unregister, event);
668 		if (err) {
670 			       event->event_num, err);
681 	int err;
690 			err = sdei_do_local_call(_local_event_register, event);
691 			if (err) {
693 				       event->event_num, err);
698 			err = sdei_do_local_call(_local_event_enable, event);
699 			if (err) {
701 				       event->event_num, err);
763 	int err;
768 	err = sdei_unregister_shared();
769 	if (err)
770 		return err;
777 	int err;
780 	err = sdei_reregister_shared();
781 	if (err) {
784 		return err;
787 	err = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "SDEI",
789 	if (err < 0) {
791 		return err;
794 	sdei_hp_state = err;
800 	int err;
802 	err = sdei_platform_reset();
803 	if (err)
804 		return err;
859 	int err;
876 	err = sdei_api_event_get_info(event_num, SDEI_EVENT_INFO_EV_PRIORITY,
878 	if (err)
879 		return err;
886 	err = sdei_event_register(event_num, cb, ghes);
887 	if (!err)
888 		err = sdei_event_enable(event_num);
890 	return err;
896 	int err;
908 	err = sdei_event_disable(event_num);
909 	if (err)
910 		return err;
913 		err = sdei_event_unregister(event_num);
914 		if (err != -EINPROGRESS)
920 	return err;
959 	int err;
967 	err = sdei_api_get_version(&ver);
968 	if (err) {
969 		pr_err("Failed to get SDEI version: %d\n", err);
971 		return err;
984 	err = sdei_platform_reset();
985 	if (err)
986 		return err;
995 	err = cpu_pm_register_notifier(&sdei_pm_nb);
996 	if (err) {
1001 	err = register_reboot_notifier(&sdei_reboot_nb);
1002 	if (err) {
1007 	err = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "SDEI",
1009 	if (err < 0) {
1014 	sdei_hp_state = err;
1026 	return err;
1087 	int err;
1090 	err = arg->callback(event_num, regs, arg->callback_arg);
1091 	if (err)
1093 				   event_num, smp_processor_id(), err);
1095 	return err;