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 static inline acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev)
  16 {
  17         return acpi_remove_pm_notifier(dev);
  18 }
  19 extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
  20                                              struct pci_dev *pci_dev);
  21 static inline acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev)
  22 {
  23         return acpi_remove_pm_notifier(dev);
  24 }
  25 extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
  26
  27 static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
  28 {
  29         struct pci_bus *pbus = pdev->bus;
  30
  31         /* Find a PCI root bus */
  32         while (!pci_is_root_bus(pbus))
  33                 pbus = pbus->parent;
  34
  35         return ACPI_HANDLE(pbus->bridge);
  36 }
  37
  38 static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
  39 {
  40         struct device *dev;
  41
  42         if (pci_is_root_bus(pbus))
  43                 dev = pbus->bridge;
  44         else {
  45                 /* If pbus is a virtual bus, there is no bridge to it */
  46                 if (!pbus->self)
  47                         return NULL;
  48
  49                 dev = &pbus->self->dev;
  50         }
  51
  52         return ACPI_HANDLE(dev);
  53 }
  54
  55 void acpi_pci_add_bus(struct pci_bus *bus);
  56 void acpi_pci_remove_bus(struct pci_bus *bus);
  57
  58 #ifdef  CONFIG_ACPI_PCI_SLOT
  59 void acpi_pci_slot_init(void);
  60 void acpi_pci_slot_enumerate(struct pci_bus *bus);
  61 void acpi_pci_slot_remove(struct pci_bus *bus);
  62 #else
  63 static inline void acpi_pci_slot_init(void) { }
  64 static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { }
  65 static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
  66 #endif
  67
  68 #ifdef  CONFIG_HOTPLUG_PCI_ACPI
  69 void acpiphp_init(void);
  70 void acpiphp_enumerate_slots(struct pci_bus *bus);
  71 void acpiphp_remove_slots(struct pci_bus *bus);
  72 void acpiphp_check_host_bridge(struct acpi_device *adev);
  73 #else
  74 static inline void acpiphp_init(void) { }
  75 static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { }
  76 static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
  77 static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
  78 #endif
  79
  80 extern const u8 pci_acpi_dsm_uuid[];
  81 #define DEVICE_LABEL_DSM        0x07
  82 #define RESET_DELAY_DSM         0x08
  83 #define FUNCTION_DELAY_DSM      0x09
  84
  85 #else   /* CONFIG_ACPI */
  86 static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
  87 static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
  88 #endif  /* CONFIG_ACPI */
  89
  90 #ifdef CONFIG_ACPI_APEI
  91 extern bool aer_acpi_firmware_first(void);
  92 #else
  93 static inline bool aer_acpi_firmware_first(void) { return false; }
  94 #endif
  95
  96 #endif  /* _PCI_ACPI_H_ */