tjh.dev
Linux kernel mirror (for testing)
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kernel
os
linux
1/*
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
11#include <linux/acpi.h>
12
13#ifdef CONFIG_ACPI
14extern acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev,
15 struct pci_bus *pci_bus);
16extern acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev);
17extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
18 struct pci_dev *pci_dev);
19extern acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev);
20extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
21
22static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
23{
24 struct pci_bus *pbus = pdev->bus;
25
26 /* Find a PCI root bus */
27 while (!pci_is_root_bus(pbus))
28 pbus = pbus->parent;
29
30 return DEVICE_ACPI_HANDLE(pbus->bridge);
31}
32
33static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
34{
35 struct device *dev;
36
37 if (pci_is_root_bus(pbus))
38 dev = pbus->bridge;
39 else
40 dev = &pbus->self->dev;
41
42 return DEVICE_ACPI_HANDLE(dev);
43}
44
45void acpi_pci_add_bus(struct pci_bus *bus);
46void acpi_pci_remove_bus(struct pci_bus *bus);
47
48#ifdef CONFIG_ACPI_PCI_SLOT
49void acpi_pci_slot_init(void);
50void acpi_pci_slot_enumerate(struct pci_bus *bus, acpi_handle handle);
51void acpi_pci_slot_remove(struct pci_bus *bus);
52#else
53static inline void acpi_pci_slot_init(void) { }
54static inline void acpi_pci_slot_enumerate(struct pci_bus *bus,
55 acpi_handle handle) { }
56static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
57#endif
58
59#ifdef CONFIG_HOTPLUG_PCI_ACPI
60void acpiphp_init(void);
61void acpiphp_enumerate_slots(struct pci_bus *bus, acpi_handle handle);
62void acpiphp_remove_slots(struct pci_bus *bus);
63void acpiphp_check_host_bridge(acpi_handle handle);
64#else
65static inline void acpiphp_init(void) { }
66static inline void acpiphp_enumerate_slots(struct pci_bus *bus,
67 acpi_handle handle) { }
68static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
69static inline void acpiphp_check_host_bridge(acpi_handle handle) { }
70#endif
71
72#else /* CONFIG_ACPI */
73static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
74static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
75#endif /* CONFIG_ACPI */
76
77#ifdef CONFIG_ACPI_APEI
78extern bool aer_acpi_firmware_first(void);
79#else
80static inline bool aer_acpi_firmware_first(void) { return false; }
81#endif
82
83#endif /* _PCI_ACPI_H_ */