LXR linux/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
  14extern acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev);
  15static inline acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev)
  16{
  17        return acpi_remove_pm_notifier(dev);
  18}
  19extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
  20                                             struct pci_dev *pci_dev);
  21static inline acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev)
  22{
  23        return acpi_remove_pm_notifier(dev);
  24}
  25extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
  26
  27static 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
  38static 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
  55struct acpi_pci_root;
  56struct acpi_pci_root_ops;
  57
  58struct acpi_pci_root_info {
  59        struct acpi_pci_root            *root;
  60        struct acpi_device              *bridge;
  61        struct acpi_pci_root_ops        *ops;
  62        struct list_head                resources;
  63        char                            name[16];
  64};
  65
  66struct acpi_pci_root_ops {
  67        struct pci_ops *pci_ops;
  68        int (*init_info)(struct acpi_pci_root_info *info);
  69        void (*release_info)(struct acpi_pci_root_info *info);
  70        int (*prepare_resources)(struct acpi_pci_root_info *info);
  71};
  72
  73extern int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info);
  74extern struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
  75                                            struct acpi_pci_root_ops *ops,
  76                                            struct acpi_pci_root_info *info,
  77                                            void *sd);
  78
  79void acpi_pci_add_bus(struct pci_bus *bus);
  80void acpi_pci_remove_bus(struct pci_bus *bus);
  81
  82#ifdef  CONFIG_ACPI_PCI_SLOT
  83void acpi_pci_slot_init(void);
  84void acpi_pci_slot_enumerate(struct pci_bus *bus);
  85void acpi_pci_slot_remove(struct pci_bus *bus);
  86#else
  87static inline void acpi_pci_slot_init(void) { }
  88static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { }
  89static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
  90#endif
  91
  92#ifdef  CONFIG_HOTPLUG_PCI_ACPI
  93void acpiphp_init(void);
  94void acpiphp_enumerate_slots(struct pci_bus *bus);
  95void acpiphp_remove_slots(struct pci_bus *bus);
  96void acpiphp_check_host_bridge(struct acpi_device *adev);
  97#else
  98static inline void acpiphp_init(void) { }
  99static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { }
 100static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
 101static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
 102#endif
 103
 104extern const u8 pci_acpi_dsm_uuid[];
 105#define DEVICE_LABEL_DSM        0x07
 106#define RESET_DELAY_DSM         0x08
 107#define FUNCTION_DELAY_DSM      0x09
 108
 109#else   /* CONFIG_ACPI */
 110static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
 111static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
 112#endif  /* CONFIG_ACPI */
 113
 114#ifdef CONFIG_ACPI_APEI
 115extern bool aer_acpi_firmware_first(void);
 116#else
 117static inline bool aer_acpi_firmware_first(void) { return false; }
 118#endif
 119
 120#endif  /* _PCI_ACPI_H_ */
 121