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 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_ */ 97