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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 |
14 | extern acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev, |
15 | struct pci_bus *pci_bus); |
16 | extern acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev); |
17 | extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev, |
18 | struct pci_dev *pci_dev); |
19 | extern acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev); |
20 | |
21 | static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev) |
22 | { |
23 | struct pci_bus *pbus = pdev->bus; |
24 | /* Find a PCI root bus */ |
25 | while (!pci_is_root_bus(pbus)) |
26 | pbus = pbus->parent; |
27 | return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus), |
28 | pbus->number); |
29 | } |
30 | |
31 | static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus) |
32 | { |
33 | if (!pci_is_root_bus(pbus)) |
34 | return DEVICE_ACPI_HANDLE(&(pbus->self->dev)); |
35 | return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus), |
36 | pbus->number); |
37 | } |
38 | #else |
39 | static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev) |
40 | { return NULL; } |
41 | #endif |
42 | |
43 | #endif /* _PCI_ACPI_H_ */ |
44 |
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