1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
4  * Module Name: evrgnini- ACPI address_space (op_region) init
6  * Copyright (C) 2000 - 2023, Intel Corp.
23  * PARAMETERS:  handle              - Region we are interested in
24  *              function            - Start or stop
25  *              handler_context     - Address space handler context
26  *              region_context      - Region specific context
52 			while (local_region_context->first_mm) {  in acpi_ev_system_memory_region_setup()
53 				mm = local_region_context->first_mm;  in acpi_ev_system_memory_region_setup()
54 				local_region_context->first_mm = mm->next_mm;  in acpi_ev_system_memory_region_setup()
55 				acpi_os_unmap_memory(mm->logical_address,  in acpi_ev_system_memory_region_setup()
56 						     mm->length);  in acpi_ev_system_memory_region_setup()
75 	local_region_context->length = region_desc->region.length;  in acpi_ev_system_memory_region_setup()
76 	local_region_context->address = region_desc->region.address;  in acpi_ev_system_memory_region_setup()
86  * PARAMETERS:  handle              - Region we are interested in
87  *              function            - Start or stop
88  *              handler_context     - Address space handler context
89  *              region_context      - Region specific context
117  * PARAMETERS:  handle              - Region we are interested in
118  *              function            - Start or stop
119  *              handler_context     - Address space handler context
120  *              region_context      - Region specific context
126  * MUTEX:       Assumes namespace is not locked
147 	handler_obj = region_obj->region.handler;  in acpi_ev_pci_config_region_setup()
167 	parent_node = region_obj->region.node->parent;  in acpi_ev_pci_config_region_setup()
179 	 * to scan upward for a PCI Root bridge and re-associate the op_region  in acpi_ev_pci_config_region_setup()
182 	if (handler_obj->address_space.node == acpi_gbl_root_node) {  in acpi_ev_pci_config_region_setup()
184 		/* Start search from the parent object */  in acpi_ev_pci_config_region_setup()
214 			pci_root_node = pci_root_node->parent;  in acpi_ev_pci_config_region_setup()
219 		pci_root_node = handler_obj->address_space.node;  in acpi_ev_pci_config_region_setup()
226 	if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) {  in acpi_ev_pci_config_region_setup()
241 	 * Find the parent device object. (This allows the operation region to be  in acpi_ev_pci_config_region_setup()
244 	pci_device_node = region_obj->region.node;  in acpi_ev_pci_config_region_setup()
245 	while (pci_device_node && (pci_device_node->type != ACPI_TYPE_DEVICE)) {  in acpi_ev_pci_config_region_setup()
246 		pci_device_node = pci_device_node->parent;  in acpi_ev_pci_config_region_setup()
256 	 * contained in the parent's scope.  in acpi_ev_pci_config_region_setup()
266 		pci_id->device = ACPI_HIWORD(ACPI_LODWORD(pci_value));  in acpi_ev_pci_config_region_setup()
267 		pci_id->function = ACPI_LOWORD(ACPI_LODWORD(pci_value));  in acpi_ev_pci_config_region_setup()
275 		pci_id->segment = ACPI_LOWORD(pci_value);  in acpi_ev_pci_config_region_setup()
283 		pci_id->bus = ACPI_LOWORD(pci_value);  in acpi_ev_pci_config_region_setup()
290 				  region_obj->region.node);  in acpi_ev_pci_config_region_setup()
304  * PARAMETERS:  node            - Device node being examined
306  * RETURN:      TRUE if device is a PCI/PCI-Express Root Bridge
328 	match = acpi_ut_is_pci_root_bridge(hid->string);  in acpi_ev_is_pci_root_bridge()
344 	for (i = 0; i < cid->count; i++) {  in acpi_ev_is_pci_root_bridge()
345 		if (acpi_ut_is_pci_root_bridge(cid->ids[i].string)) {  in acpi_ev_is_pci_root_bridge()
359  * PARAMETERS:  handle              - Region we are interested in
360  *              function            - Start or stop
361  *              handler_context     - Address space handler context
362  *              region_context      - Region specific context
368  * MUTEX:       Assumes namespace is not locked
386  * PARAMETERS:  handle              - Region we are interested in
387  *              function            - Start or stop
388  *              handler_context     - Address space handler context
389  *              region_context      - Region specific context
395  * MUTEX:       Assumes namespace is not locked
413  * PARAMETERS:  handle              - Region we are interested in
414  *              function            - Start or stop
415  *              handler_context     - Address space handler context
416  *              region_context      - Region specific context
422  * MUTEX:       Assumes namespace is not locked
455 	local_region_context->pointer = region_desc->region.pointer;  in acpi_ev_data_table_region_setup()
465  * PARAMETERS:  handle              - Region we are interested in
466  *              function            - Start or stop
467  *              handler_context     - Address space handler context
468  *              region_context      - Region specific context
496  * PARAMETERS:  region_obj      - Region we are initializing
522  *              Though this may not be compliant to the de-facto standard, the
541 	if (region_obj->common.flags & AOPOBJ_OBJECT_INITIALIZED) {  in acpi_ev_initialize_region()
545 	region_obj->common.flags |= AOPOBJ_OBJECT_INITIALIZED;  in acpi_ev_initialize_region()
547 	node = region_obj->region.node->parent;  in acpi_ev_initialize_region()
548 	space_id = region_obj->region.space_id;  in acpi_ev_initialize_region()
551 	 * The following loop depends upon the root Node having no parent  in acpi_ev_initialize_region()
552 	 * ie: acpi_gbl_root_node->Parent being set to NULL  in acpi_ev_initialize_region()
564 			switch (node->type) {  in acpi_ev_initialize_region()
569 				handler_obj = obj_desc->common_notify.handler;  in acpi_ev_initialize_region()
607 		node = node->parent;  in acpi_ev_initialize_region()