linux/include/linux/pci-acpi.h
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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
  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        /* Find a PCI root bus */
  26        while (!pci_is_root_bus(pbus))
  27                pbus = pbus->parent;
  28        return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
  29                                              pbus->number);
  30}
  31
  32static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
  33{
  34        if (!pci_is_root_bus(pbus))
  35                return DEVICE_ACPI_HANDLE(&(pbus->self->dev));
  36        return acpi_get_pci_rootbridge_handle(pci_domain_nr(pbus),
  37                                              pbus->number);
  38}
  39#endif
  40
  41#ifdef CONFIG_ACPI_APEI
  42extern bool aer_acpi_firmware_first(void);
  43#else
  44static inline bool aer_acpi_firmware_first(void) { return false; }
  45#endif
  46
  47#endif  /* _PCI_ACPI_H_ */
  48
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