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
  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 extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
  21
  22 static 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
  32 static 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
  42 extern bool aer_acpi_firmware_first(void);
  43 #else
  44 static inline bool aer_acpi_firmware_first(void) { return false; }
  45 #endif
  46
  47 #endif  /* _PCI_ACPI_H_ */