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* l4( (  fB- hO_I|+ /* SPDX-License-Identifier: GPL-2.0 */ /* * File pci-acpi.h * * Copyright (C) 2004 Intel * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com) */ #ifndef _PCI_ACPI_H_ #define _PCI_ACPI_H_ #include #ifdef CONFIG_ACPI extern acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev); static inline acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev) { return acpi_remove_pm_notifier(dev); } extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev, struct pci_dev *pci_dev); static inline acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev) { return acpi_remove_pm_notifier(dev); } extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle); struct pci_ecam_ops; extern int pci_mcfg_lookup(struct acpi_pci_root *root, struct resource *cfgres, const struct pci_ecam_ops **ecam_ops); static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev) { struct pci_bus *pbus = pdev->bus; /* Find a PCI root bus */ while (!pci_is_root_bus(pbus)) pbus = pbus->parent; return ACPI_HANDLE(pbus->bridge); } static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus) { struct device *dev; if (pci_is_root_bus(pbus)) dev = pbus->bridge; else { /* If pbus is a virtual bus, there is no bridge to it */ if (!pbus->self) return NULL; dev = &pbus->self->dev; } return ACPI_HANDLE(dev); } struct acpi_pci_root; struct acpi_pci_root_ops; struct acpi_pci_root_info { struct acpi_pci_root *root; struct acpi_device *bridge; struct acpi_pci_root_ops *ops; struct list_head resources; char name[16]; }; struct acpi_pci_root_ops { struct pci_ops *pci_ops; int (*init_info)(struct acpi_pci_root_info *info); void (*release_info)(struct acpi_pci_root_info *info); int (*prepare_resources)(struct acpi_pci_root_info *info); }; extern int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info); extern struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root, struct acpi_pci_root_ops *ops, struct acpi_pci_root_info *info, void *sd); void acpi_pci_add_bus(struct pci_bus *bus); void acpi_pci_remove_bus(struct pci_bus *bus); #ifdef CONFIG_PCI void pci_acpi_setup(struct device *dev, struct acpi_device *adev); void pci_acpi_cleanup(struct device *dev, struct acpi_device *adev); #else static inline void pci_acpi_setup(struct device *dev, struct acpi_device *adev) {} static inline void pci_acpi_cleanup(struct device *dev, struct acpi_device *adev) {} #endif #ifdef CONFIG_ACPI_PCI_SLOT void acpi_pci_slot_init(void); void acpi_pci_slot_enumerate(struct pci_bus *bus); void acpi_pci_slot_remove(struct pci_bus *bus); #else static inline void acpi_pci_slot_init(void) { } static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { } static inline void acpi_pci_slot_remove(struct pci_bus *bus) { } #endif #ifdef CONFIG_HOTPLU