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kernel/linux-imx6_3.14.28/include/linux/pci-acpi.h 2.29 KB
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  /*
   * File		pci-acpi.h
   *
   * Copyright (C) 2004 Intel
   * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
   */
  
  #ifndef _PCI_ACPI_H_
  #define _PCI_ACPI_H_
  
  #include <linux/acpi.h>
  
  #ifdef CONFIG_ACPI
  extern acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev,
  						 struct pci_bus *pci_bus);
  extern acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev);
  extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
  					     struct pci_dev *pci_dev);
  extern acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev);
  extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
  
  static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
  {
  	struct pci_bus *pbus = pdev->bus;
  
  	/* Find a PCI root bus */
  	while (!pci_is_root_bus(pbus))
  		pbus = pbus->parent;
  
  	return ACPI_HANDLE(pbus->bridge);
  }
  
  static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
  {
  	struct device *dev;
  
  	if (pci_is_root_bus(pbus))
  		dev = pbus->bridge;
  	else
  		dev = &pbus->self->dev;
  
  	return ACPI_HANDLE(dev);
  }
  
  void acpi_pci_add_bus(struct pci_bus *bus);
  void acpi_pci_remove_bus(struct pci_bus *bus);
  
  #ifdef	CONFIG_ACPI_PCI_SLOT
  void acpi_pci_slot_init(void);
  void acpi_pci_slot_enumerate(struct pci_bus *bus);
  void acpi_pci_slot_remove(struct pci_bus *bus);
  #else
  static inline void acpi_pci_slot_init(void) { }
  static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { }
  static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
  #endif
  
  #ifdef	CONFIG_HOTPLUG_PCI_ACPI
  void acpiphp_init(void);
  void acpiphp_enumerate_slots(struct pci_bus *bus);
  void acpiphp_remove_slots(struct pci_bus *bus);
  void acpiphp_check_host_bridge(acpi_handle handle);
  #else
  static inline void acpiphp_init(void) { }
  static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { }
  static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
  static inline void acpiphp_check_host_bridge(acpi_handle handle) { }
  #endif
  
  #else	/* CONFIG_ACPI */
  static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
  static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
  #endif	/* CONFIG_ACPI */
  
  #ifdef CONFIG_ACPI_APEI
  extern bool aer_acpi_firmware_first(void);
  #else
  static inline bool aer_acpi_firmware_first(void) { return false; }
  #endif
  
  #endif	/* _PCI_ACPI_H_ */