LXR linux/include/linux/pci-acpi.h

   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_ */
  84