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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * File pci-acpi.h
3 *
4 * Copyright (C) 2004 Intel
5 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
6 */
7
8#ifndef _PCI_ACPI_H_
9#define _PCI_ACPI_H_
10
Andrew Patterson8b620912008-11-10 15:30:40 -070011#include <linux/acpi.h>
12
Linus Torvalds1da177e2005-04-16 15:20:36 -070013#ifdef CONFIG_ACPI
Rafael J. Wysockic0725302014-07-23 01:00:45 +020014extern acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev);
15static inline acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev)
16{
17 return acpi_remove_pm_notifier(dev);
18}
Rafael J. Wysockib67ea762010-02-17 23:44:09 +010019extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
20 struct pci_dev *pci_dev);
Rafael J. Wysockic0725302014-07-23 01:00:45 +020021static inline acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev)
22{
23 return acpi_remove_pm_notifier(dev);
24}
Jiang Liuf4b57a32012-06-22 14:55:16 +080025extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
Rafael J. Wysockib67ea762010-02-17 23:44:09 +010026
Jiri Slaby056c58e2008-08-18 20:22:54 +020027static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
28{
Kenji Kaneshiged18690a2009-02-17 14:12:36 +090029 struct pci_bus *pbus = pdev->bus;
Yinghai Lu059e4ba2012-09-24 14:51:23 -060030
Kenji Kaneshiged18690a2009-02-17 14:12:36 +090031 /* Find a PCI root bus */
Kenji Kaneshigea222b8f2009-05-26 16:05:33 +090032 while (!pci_is_root_bus(pbus))
Kenji Kaneshiged18690a2009-02-17 14:12:36 +090033 pbus = pbus->parent;
Yinghai Lu059e4ba2012-09-24 14:51:23 -060034
Rafael J. Wysocki3a83f992013-11-14 23:17:21 +010035 return ACPI_HANDLE(pbus->bridge);
Jiri Slaby056c58e2008-08-18 20:22:54 +020036}
Kenji Kaneshigee8c331e2008-12-17 12:09:12 +090037
38static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
39{
Yinghai Lu059e4ba2012-09-24 14:51:23 -060040 struct device *dev;
41
42 if (pci_is_root_bus(pbus))
43 dev = pbus->bridge;
Yinghai Lu32f638f2014-10-30 10:17:25 -060044 else {
45 /* If pbus is a virtual bus, there is no bridge to it */
46 if (!pbus->self)
47 return NULL;
48
Yinghai Lu059e4ba2012-09-24 14:51:23 -060049 dev = &pbus->self->dev;
Yinghai Lu32f638f2014-10-30 10:17:25 -060050 }
Yinghai Lu059e4ba2012-09-24 14:51:23 -060051
Rafael J. Wysocki3a83f992013-11-14 23:17:21 +010052 return ACPI_HANDLE(dev);
Kenji Kaneshigee8c331e2008-12-17 12:09:12 +090053}
Jiang Liu5090d4a2013-04-12 05:44:21 +000054
55void acpi_pci_add_bus(struct pci_bus *bus);
56void acpi_pci_remove_bus(struct pci_bus *bus);
Jiang Liu5c0b04e2013-04-12 05:44:24 +000057
58#ifdef CONFIG_ACPI_PCI_SLOT
59void acpi_pci_slot_init(void);
Rafael J. Wysockibe1c9de2013-07-13 23:27:23 +020060void acpi_pci_slot_enumerate(struct pci_bus *bus);
Jiang Liu5c0b04e2013-04-12 05:44:24 +000061void acpi_pci_slot_remove(struct pci_bus *bus);
62#else
63static inline void acpi_pci_slot_init(void) { }
Rafael J. Wysockibe1c9de2013-07-13 23:27:23 +020064static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { }
Jiang Liu5c0b04e2013-04-12 05:44:24 +000065static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
66#endif
67
Jiang Liu3b63aaa2013-04-12 05:44:26 +000068#ifdef CONFIG_HOTPLUG_PCI_ACPI
69void acpiphp_init(void);
Rafael J. Wysockibe1c9de2013-07-13 23:27:23 +020070void acpiphp_enumerate_slots(struct pci_bus *bus);
Jiang Liu3b63aaa2013-04-12 05:44:26 +000071void acpiphp_remove_slots(struct pci_bus *bus);
Rafael J. Wysocki1f7c1642014-02-04 00:45:13 +010072void acpiphp_check_host_bridge(struct acpi_device *adev);
Jiang Liu3b63aaa2013-04-12 05:44:26 +000073#else
74static inline void acpiphp_init(void) { }
Rafael J. Wysockibe1c9de2013-07-13 23:27:23 +020075static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { }
Jiang Liu3b63aaa2013-04-12 05:44:26 +000076static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
Rafael J. Wysocki1f7c1642014-02-04 00:45:13 +010077static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
Jiang Liu3b63aaa2013-04-12 05:44:26 +000078#endif
79
Aaron Lu18e94a32015-03-25 14:31:41 +080080extern const u8 pci_acpi_dsm_uuid[];
81#define DEVICE_LABEL_DSM 0x07
Aaron Lue33caa82015-03-25 14:37:06 +080082#define RESET_DELAY_DSM 0x08
83#define FUNCTION_DELAY_DSM 0x09
Aaron Lu18e94a32015-03-25 14:31:41 +080084
Jiang Liu5090d4a2013-04-12 05:44:21 +000085#else /* CONFIG_ACPI */
86static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
87static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
88#endif /* CONFIG_ACPI */
Linus Torvalds1da177e2005-04-16 15:20:36 -070089
Rafael J. Wysocki415e12b2011-01-07 00:55:09 +010090#ifdef CONFIG_ACPI_APEI
91extern bool aer_acpi_firmware_first(void);
92#else
93static inline bool aer_acpi_firmware_first(void) { return false; }
94#endif
95
Linus Torvalds1da177e2005-04-16 15:20:36 -070096#endif /* _PCI_ACPI_H_ */