Lines Matching +full:firmware +full:- +full:initialised
1 // SPDX-License-Identifier: GPL-2.0
8 #include <linux/arm-smccc.h>
37 * The call to use to reach the firmware.
44 /* entry point from firmware to arch asm code */
57 /* This pointer is handed to firmware as the event argument. */
113 if (err && (atomic_inc_return(&arg->errors) == 1)) in sdei_cross_call_return()
114 arg->first_error = err; in sdei_cross_call_return()
121 return -EOPNOTSUPP; in sdei_to_linux_errno()
123 return -EINVAL; in sdei_to_linux_errno()
125 return -EPERM; in sdei_to_linux_errno()
127 return -EINPROGRESS; in sdei_to_linux_errno()
129 return -ENOMEM; in sdei_to_linux_errno()
150 * sdei_mark_interface_broken(). -EIO is not an error returned in invoke_sdei_fn()
154 err = -EIO; in invoke_sdei_fn()
173 if (e->event_num == event_num) { in sdei_event_find()
209 err = -ENOMEM; in sdei_event_create()
213 INIT_LIST_HEAD(&event->list); in sdei_event_create()
214 event->event_num = event_num; in sdei_event_create()
220 event->priority = result; in sdei_event_create()
226 event->type = result; in sdei_event_create()
228 if (event->type == SDEI_EVENT_TYPE_SHARED) { in sdei_event_create()
231 err = -ENOMEM; in sdei_event_create()
235 reg->event_num = event->event_num; in sdei_event_create()
236 reg->priority = event->priority; in sdei_event_create()
238 reg->callback = cb; in sdei_event_create()
239 reg->callback_arg = cb_arg; in sdei_event_create()
240 event->registered = reg; in sdei_event_create()
247 err = -ENOMEM; in sdei_event_create()
254 reg->event_num = event->event_num; in sdei_event_create()
255 reg->priority = event->priority; in sdei_event_create()
256 reg->callback = cb; in sdei_event_create()
257 reg->callback_arg = cb_arg; in sdei_event_create()
260 event->private_registered = regs; in sdei_event_create()
264 list_add(&event->list, &sdei_list); in sdei_event_create()
279 list_del(&event->list); in sdei_event_destroy_llocked()
281 if (event->type == SDEI_EVENT_TYPE_SHARED) in sdei_event_destroy_llocked()
282 kfree(event->registered); in sdei_event_destroy_llocked()
284 free_percpu(event->private_registered); in sdei_event_destroy_llocked()
308 if (err && err != -EIO) { in sdei_mask_local_cpu()
329 if (err && err != -EIO) { in sdei_unmask_local_cpu()
349 if (err && err != -EIO) in _ipi_private_reset()
362 pr_err("disabling SDEI firmware interface\n"); in sdei_mark_interface_broken()
395 err = sdei_api_event_enable(arg->event->event_num); in _local_event_enable()
402 int err = -EINVAL; in sdei_event_enable()
409 return -ENOENT; in sdei_event_enable()
414 if (event->type == SDEI_EVENT_TYPE_SHARED) in sdei_event_enable()
415 err = sdei_api_event_enable(event->event_num); in sdei_event_enable()
421 event->reenable = true; in sdei_event_enable()
441 err = sdei_api_event_disable(arg->event->event_num); in _ipi_event_disable()
448 int err = -EINVAL; in sdei_event_disable()
455 return -ENOENT; in sdei_event_disable()
459 event->reenable = false; in sdei_event_disable()
462 if (event->type == SDEI_EVENT_TYPE_SHARED) in sdei_event_disable()
463 err = sdei_api_event_disable(event->event_num); in sdei_event_disable()
485 err = sdei_api_event_unregister(arg->event->event_num); in _local_event_unregister()
501 err = -ENOENT; in sdei_event_unregister()
506 event->reregister = false; in sdei_event_unregister()
507 event->reenable = false; in sdei_event_unregister()
510 if (event->type == SDEI_EVENT_TYPE_SHARED) in sdei_event_unregister()
511 err = sdei_api_event_unregister(event->event_num); in sdei_event_unregister()
526 * unregister events, but don't destroy them as they are re-registered by
537 if (event->type != SDEI_EVENT_TYPE_SHARED) in sdei_unregister_shared()
540 err = sdei_api_event_unregister(event->event_num); in sdei_unregister_shared()
567 reg = per_cpu_ptr(arg->event->private_registered, smp_processor_id()); in _local_event_register()
568 err = sdei_api_event_register(arg->event->event_num, sdei_entry_point, in _local_event_register()
584 err = -EBUSY; in sdei_event_register()
596 if (event->type == SDEI_EVENT_TYPE_SHARED) { in sdei_event_register()
597 err = sdei_api_event_register(event->event_num, in sdei_event_register()
599 event->registered, in sdei_event_register()
614 event->reregister = true; in sdei_event_register()
631 if (event->type != SDEI_EVENT_TYPE_SHARED) in sdei_reregister_shared()
634 if (event->reregister) { in sdei_reregister_shared()
635 err = sdei_api_event_register(event->event_num, in sdei_reregister_shared()
636 sdei_entry_point, event->registered, in sdei_reregister_shared()
639 pr_err("Failed to re-register event %u\n", in sdei_reregister_shared()
640 event->event_num); in sdei_reregister_shared()
646 if (event->reenable) { in sdei_reregister_shared()
647 err = sdei_api_event_enable(event->event_num); in sdei_reregister_shared()
649 pr_err("Failed to re-enable event %u\n", in sdei_reregister_shared()
650 event->event_num); in sdei_reregister_shared()
666 /* un-register private events */ in sdei_cpuhp_down()
669 if (event->type == SDEI_EVENT_TYPE_SHARED) in sdei_cpuhp_down()
675 event->event_num, err); in sdei_cpuhp_down()
688 /* re-register/enable private events */ in sdei_cpuhp_up()
691 if (event->type == SDEI_EVENT_TYPE_SHARED) in sdei_cpuhp_up()
694 if (event->reregister) { in sdei_cpuhp_up()
697 pr_err("Failed to re-register event %u: %d\n", in sdei_cpuhp_up()
698 event->event_num, err); in sdei_cpuhp_up()
702 if (event->reenable) { in sdei_cpuhp_up()
705 pr_err("Failed to re-enable event %u: %d\n", in sdei_cpuhp_up()
706 event->event_num, err); in sdei_cpuhp_up()
760 * The sequence is freeze->thaw. Reboot. freeze->restore. We unregister
761 * events during freeze, then re-register and re-enable them during thaw
782 /* re-register shared events */ in sdei_device_thaw()
785 pr_warn("Failed to re-register shared events...\n"); in sdei_device_thaw()
793 pr_warn("Failed to re-register CPU hotplug notifier...\n"); in sdei_device_thaw()
865 return -EOPNOTSUPP; in sdei_register_ghes()
867 event_num = ghes->generic->notify.vector; in sdei_register_ghes()
873 return -EINVAL; in sdei_register_ghes()
897 u32 event_num = ghes->generic->notify.vector; in sdei_unregister_ghes()
902 return -EOPNOTSUPP; in sdei_unregister_ghes()
914 if (err != -EINPROGRESS) in sdei_unregister_ghes()
926 struct device_node *np = pdev->dev.of_node; in sdei_get_conduit()
974 pr_info("SDEIv%d.%d (0x%x) detected in firmware.\n", in sdei_probe()
981 return -EINVAL; in sdei_probe()
1028 { .compatible = "arm,sdei-1.0" },
1086 * its events. ACPI is initialised from a subsys_initcall(), GHES is initialised
1096 u32 event_num = arg->event_num; in sdei_event_handler()
1108 err = arg->callback(event_num, regs, arg->callback_arg); in sdei_event_handler()