1 /* 2 * File pci-acpi.h 3 * 4 * Copyright (C) 2004 Intel 5 * Copyright (C) Tom Long Nguyen ([email protected]) 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_ */ 121