1 // SPDX-License-Identifier: GPL-2.0-only
11  * Copyright 2009-2010 Intel Corp.
26 #include "apei-internal.h"
82  * most will ignore the parameter and make their own choice of address
145 			   EINJ_TAB_ENTRY(einj_tab), einj_tab->entries);  in einj_exec_ctx_init()
180 	*t -= SLEEP_UNIT_MIN;  in einj_timedout()
192 	vendor_size = v->length - sizeof(struct vendor_error_type_extension);  in get_oem_vendor_struct()
204 	int	offset = v5param->vendor_extension;  in check_vendor_extension()
214 	sbdf = v->pcie_sbdf;  in check_vendor_extension()
218 		 v->vendor_id, v->device_id, v->rev_id);  in check_vendor_extension()
229 	for (i = 0; i < einj_tab->entries; i++) {  in einj_get_parameter_address()
230 		if (entry->action == ACPI_EINJ_SET_ERROR_TYPE &&  in einj_get_parameter_address()
231 		    entry->instruction == ACPI_EINJ_WRITE_REGISTER &&  in einj_get_parameter_address()
232 		    entry->register_region.space_id ==  in einj_get_parameter_address()
234 			pa_v4 = get_unaligned(&entry->register_region.address);  in einj_get_parameter_address()
235 		if (entry->action == ACPI_EINJ_SET_ERROR_TYPE_WITH_ADDRESS &&  in einj_get_parameter_address()
236 		    entry->instruction == ACPI_EINJ_WRITE_REGISTER &&  in einj_get_parameter_address()
237 		    entry->register_region.space_id ==  in einj_get_parameter_address()
239 			pa_v5 = get_unaligned(&entry->register_region.address);  in einj_get_parameter_address()
258 		if (v4param->reserved1 || v4param->reserved2) {  in einj_get_parameter_address()
268 /* do sanity check to trigger table */
271 	if (trigger_tab->header_size != sizeof(struct acpi_einj_trigger))  in einj_check_trigger_header()
272 		return -EINVAL;  in einj_check_trigger_header()
273 	if (trigger_tab->table_size > PAGE_SIZE ||  in einj_check_trigger_header()
274 	    trigger_tab->table_size < trigger_tab->header_size)  in einj_check_trigger_header()
275 		return -EINVAL;  in einj_check_trigger_header()
276 	if (trigger_tab->entry_count !=  in einj_check_trigger_header()
277 	    (trigger_tab->table_size - trigger_tab->header_size) /  in einj_check_trigger_header()
279 		return -EINVAL;  in einj_check_trigger_header()
292 	for (i = 0; i < trigger_tab->entry_count; i++) {  in einj_get_trigger_parameter_region()
293 		if (entry->action == ACPI_EINJ_TRIGGER_ERROR &&  in einj_get_trigger_parameter_region()
294 		entry->instruction <= ACPI_EINJ_WRITE_REGISTER_VALUE &&  in einj_get_trigger_parameter_region()
295 		entry->register_region.space_id ==  in einj_get_trigger_parameter_region()
297 		(entry->register_region.address & param2) == (param1 & param2))  in einj_get_trigger_parameter_region()
298 			return &entry->register_region;  in einj_get_trigger_parameter_region()
304 /* Execute instructions in trigger error action table */
314 	int rc = -EIO;  in __einj_error_trigger()
318 			       "APEI EINJ Trigger Table");  in __einj_error_trigger()
320 		pr_err("Can not request [mem %#010llx-%#010llx] for Trigger table\n",  in __einj_error_trigger()
323 			    sizeof(*trigger_tab) - 1);  in __einj_error_trigger()
328 		pr_err("Failed to map trigger table!\n");  in __einj_error_trigger()
333 		pr_warn(FW_BUG "Invalid trigger error action table.\n");  in __einj_error_trigger()
338 	if (!trigger_tab->entry_count)  in __einj_error_trigger()
341 	rc = -EIO;  in __einj_error_trigger()
342 	table_size = trigger_tab->table_size;  in __einj_error_trigger()
344 			       table_size - sizeof(*trigger_tab),  in __einj_error_trigger()
345 			       "APEI EINJ Trigger Table");  in __einj_error_trigger()
347 		pr_err("Can not request [mem %#010llx-%#010llx] for Trigger Table Entry\n",  in __einj_error_trigger()
349 		       (unsigned long long)trigger_paddr + table_size - 1);  in __einj_error_trigger()
355 		pr_err("Failed to map trigger table!\n");  in __einj_error_trigger()
363 			   trigger_entry, trigger_tab->entry_count);  in __einj_error_trigger()
371 	 * Some firmware will access target address specified in  in __einj_error_trigger()
372 	 * param1 to trigger the error when injecting memory error.  in __einj_error_trigger()
374 	 * remove it from trigger table resources.  in __einj_error_trigger()
384 				trigger_param_region->address,  in __einj_error_trigger()
385 				trigger_param_region->bit_width/8, true);  in __einj_error_trigger()
395 	rc = apei_resources_request(&trigger_resources, "APEI EINJ Trigger");  in __einj_error_trigger()
411 			   table_size - sizeof(*trigger_tab));  in __einj_error_trigger()
437 		v5param->type = type;  in __einj_error_inject()
441 				v5param->apicid = param1;  in __einj_error_inject()
444 				v5param->memory_address = param1;  in __einj_error_inject()
445 				v5param->memory_address_range = param2;  in __einj_error_inject()
448 				v5param->pcie_sbdf = param1;  in __einj_error_inject()
451 			v5param->flags = vendor_flags;  in __einj_error_inject()
453 			v5param->flags = flags;  in __einj_error_inject()
454 			v5param->memory_address = param1;  in __einj_error_inject()
455 			v5param->memory_address_range = param2;  in __einj_error_inject()
456 			v5param->apicid = param3;  in __einj_error_inject()
457 			v5param->pcie_sbdf = param4;  in __einj_error_inject()
463 				v5param->apicid = param1;  in __einj_error_inject()
464 				v5param->flags = SETWA_FLAGS_APICID;  in __einj_error_inject()
469 				v5param->memory_address = param1;  in __einj_error_inject()
470 				v5param->memory_address_range = param2;  in __einj_error_inject()
471 				v5param->flags = SETWA_FLAGS_MEM;  in __einj_error_inject()
476 				v5param->pcie_sbdf = param1;  in __einj_error_inject()
477 				v5param->flags = SETWA_FLAGS_PCIE_SBDF;  in __einj_error_inject()
488 			v4param->param1 = param1;  in __einj_error_inject()
489 			v4param->param2 = param2;  in __einj_error_inject()
503 			return -EIO;  in __einj_error_inject()
510 		return -EBUSY;  in __einj_error_inject()
512 		return -EINVAL;  in __einj_error_inject()
516 	 * to trigger the error.  in __einj_error_inject()
542 		return -EINVAL;  in einj_error_inject()
561 	 * Disallow crazy address masks that give BIOS leeway to pick  in einj_error_inject()
562 	 * injection address almost anywhere. Insist on page or  in einj_error_inject()
563 	 * better granularity and that target address is normal RAM or  in einj_error_inject()
577 		return -EINVAL;  in einj_error_inject()
580 		return -EADDRINUSE;  in einj_error_inject()
599 	{ BIT(1), "Processor Uncorrectable non-fatal" },
602 	{ BIT(4), "Memory Uncorrectable non-fatal" },
605 	{ BIT(7), "PCI Express Uncorrectable non-fatal" },
608 	{ BIT(10), "Platform Uncorrectable non-fatal" },
611 	{ BIT(13), "CXL.cache Protocol Uncorrectable non-fatal" },
614 	{ BIT(16), "CXL.mem Protocol Uncorrectable non-fatal" },
652 		return -EINVAL;  in error_type_set()
662 	if (tval & (tval - 1))  in error_type_set()
663 		return -EINVAL;  in error_type_set()
669 			return -EINVAL;  in error_type_set()
682 		return -EINVAL;  in error_inject_set()
692 	if ((einj_tab->header_length !=  in einj_check_table()
693 	     (sizeof(struct acpi_table_einj) - sizeof(einj_tab->header)))  in einj_check_table()
694 	    && (einj_tab->header_length != sizeof(struct acpi_table_einj)))  in einj_check_table()
695 		return -EINVAL;  in einj_check_table()
696 	if (einj_tab->header.length < sizeof(struct acpi_table_einj))  in einj_check_table()
697 		return -EINVAL;  in einj_check_table()
698 	if (einj_tab->entries !=  in einj_check_table()
699 	    (einj_tab->header.length - sizeof(struct acpi_table_einj)) /  in einj_check_table()
701 		return -EINVAL;  in einj_check_table()
714 		return -ENODEV;  in einj_init()
721 		return -ENODEV;  in einj_init()
725 		return -EINVAL;  in einj_init()
734 	rc = -ENOMEM;  in einj_init()
760 		pr_err("Error pre-mapping GARs.\n");  in einj_init()