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
  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
  33 static 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
  45 void acpi_pci_add_bus(struct pci_bus *bus);
  46 void acpi_pci_remove_bus(struct pci_bus *bus);
  47
  48 #ifdef  CONFIG_ACPI_PCI_SLOT
  49 void acpi_pci_slot_init(void);
  50 void acpi_pci_slot_enumerate(struct pci_bus *bus, acpi_handle handle);
  51 void acpi_pci_slot_remove(struct pci_bus *bus);
  52 #else
  53 static inline void acpi_pci_slot_init(void) { }
  54 static inline void acpi_pci_slot_enumerate(struct pci_bus *bus,
  55                                            acpi_handle handle) { }
  56 static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
  57 #endif
  58
  59 #ifdef  CONFIG_HOTPLUG_PCI_ACPI
  60 void acpiphp_init(void);
  61 void acpiphp_enumerate_slots(struct pci_bus *bus, acpi_handle handle);
  62 void acpiphp_remove_slots(struct pci_bus *bus);
  63 void acpiphp_check_host_bridge(acpi_handle handle);
  64 #else
  65 static inline void acpiphp_init(void) { }
  66 static inline void acpiphp_enumerate_slots(struct pci_bus *bus,
  67                                            acpi_handle handle) { }
  68 static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
  69 static inline void acpiphp_check_host_bridge(acpi_handle handle) { }
  70 #endif
  71
  72 #else   /* CONFIG_ACPI */
  73 static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
  74 static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
  75 #endif  /* CONFIG_ACPI */
  76
  77 #ifdef CONFIG_ACPI_APEI
  78 extern bool aer_acpi_firmware_first(void);
  79 #else
  80 static inline bool aer_acpi_firmware_first(void) { return false; }
  81 #endif
  82
  83 #endif  /* _PCI_ACPI_H_ */