| 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 | struct acpi_pci_root; |
| 56 | struct acpi_pci_root_ops; |
| 57 | |
| 58 | struct 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 | |
| 66 | struct 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 | |
| 73 | extern int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info); |
| 74 | extern 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 | |
| 79 | void acpi_pci_add_bus(struct pci_bus *bus); |
| 80 | void acpi_pci_remove_bus(struct pci_bus *bus); |
| 81 | |
| 82 | #ifdef CONFIG_ACPI_PCI_SLOT |
| 83 | void acpi_pci_slot_init(void); |
| 84 | void acpi_pci_slot_enumerate(struct pci_bus *bus); |
| 85 | void acpi_pci_slot_remove(struct pci_bus *bus); |
| 86 | #else |
| 87 | static inline void acpi_pci_slot_init(void) { } |
| 88 | static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { } |
| 89 | static inline void acpi_pci_slot_remove(struct pci_bus *bus) { } |
| 90 | #endif |
| 91 | |
| 92 | #ifdef CONFIG_HOTPLUG_PCI_ACPI |
| 93 | void acpiphp_init(void); |
| 94 | void acpiphp_enumerate_slots(struct pci_bus *bus); |
| 95 | void acpiphp_remove_slots(struct pci_bus *bus); |
| 96 | void acpiphp_check_host_bridge(struct acpi_device *adev); |
| 97 | #else |
| 98 | static inline void acpiphp_init(void) { } |
| 99 | static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { } |
| 100 | static inline void acpiphp_remove_slots(struct pci_bus *bus) { } |
| 101 | static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { } |
| 102 | #endif |
| 103 | |
| 104 | extern 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 */ |
| 110 | static inline void acpi_pci_add_bus(struct pci_bus *bus) { } |
| 111 | static inline void acpi_pci_remove_bus(struct pci_bus *bus) { } |
| 112 | #endif /* CONFIG_ACPI */ |
| 113 | |
| 114 | #ifdef CONFIG_ACPI_APEI |
| 115 | extern bool aer_acpi_firmware_first(void); |
| 116 | #else |
| 117 | static inline bool aer_acpi_firmware_first(void) { return false; } |
| 118 | #endif |
| 119 | |
| 120 | #endif /* _PCI_ACPI_H_ */ |