1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Copyright (C) 2004 Intel
6 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
12 #include <linux/acpi.h>
15 extern acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev);
16 static inline acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev)
18 return acpi_remove_pm_notifier(dev);
20 extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
21 struct pci_dev *pci_dev);
22 static inline acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev)
24 return acpi_remove_pm_notifier(dev);
26 extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
29 extern int pci_mcfg_lookup(struct acpi_pci_root *root, struct resource *cfgres,
30 struct pci_ecam_ops **ecam_ops);
32 static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
34 struct pci_bus *pbus = pdev->bus;
36 /* Find a PCI root bus */
37 while (!pci_is_root_bus(pbus))
40 return ACPI_HANDLE(pbus->bridge);
43 static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
47 if (pci_is_root_bus(pbus))
50 /* If pbus is a virtual bus, there is no bridge to it */
54 dev = &pbus->self->dev;
57 return ACPI_HANDLE(dev);
61 struct acpi_pci_root_ops;
63 struct acpi_pci_root_info {
64 struct acpi_pci_root *root;
65 struct acpi_device *bridge;
66 struct acpi_pci_root_ops *ops;
67 struct list_head resources;
71 struct acpi_pci_root_ops {
72 struct pci_ops *pci_ops;
73 int (*init_info)(struct acpi_pci_root_info *info);
74 void (*release_info)(struct acpi_pci_root_info *info);
75 int (*prepare_resources)(struct acpi_pci_root_info *info);
78 extern int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info);
79 extern struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
80 struct acpi_pci_root_ops *ops,
81 struct acpi_pci_root_info *info,
84 void acpi_pci_add_bus(struct pci_bus *bus);
85 void acpi_pci_remove_bus(struct pci_bus *bus);
87 #ifdef CONFIG_ACPI_PCI_SLOT
88 void acpi_pci_slot_init(void);
89 void acpi_pci_slot_enumerate(struct pci_bus *bus);
90 void acpi_pci_slot_remove(struct pci_bus *bus);
92 static inline void acpi_pci_slot_init(void) { }
93 static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { }
94 static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
97 #ifdef CONFIG_HOTPLUG_PCI_ACPI
98 void acpiphp_init(void);
99 void acpiphp_enumerate_slots(struct pci_bus *bus);
100 void acpiphp_remove_slots(struct pci_bus *bus);
101 void acpiphp_check_host_bridge(struct acpi_device *adev);
103 static inline void acpiphp_init(void) { }
104 static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { }
105 static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
106 static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
109 extern const guid_t pci_acpi_dsm_guid;
110 #define IGNORE_PCI_BOOT_CONFIG_DSM 0x05
111 #define DEVICE_LABEL_DSM 0x07
112 #define RESET_DELAY_DSM 0x08
113 #define FUNCTION_DELAY_DSM 0x09
115 #ifdef CONFIG_PCIE_EDR
116 void pci_acpi_add_edr_notifier(struct pci_dev *pdev);
117 void pci_acpi_remove_edr_notifier(struct pci_dev *pdev);
119 static inline void pci_acpi_add_edr_notifier(struct pci_dev *pdev) { }
120 static inline void pci_acpi_remove_edr_notifier(struct pci_dev *pdev) { }
121 #endif /* CONFIG_PCIE_EDR */
123 #else /* CONFIG_ACPI */
124 static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
125 static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
126 #endif /* CONFIG_ACPI */
128 #ifdef CONFIG_ACPI_APEI
129 extern bool aer_acpi_firmware_first(void);
131 static inline bool aer_acpi_firmware_first(void) { return false; }
134 #endif /* _PCI_ACPI_H_ */