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git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/blob - include/linux/pci-acpi.h
4 * Copyright (C) 2004 Intel
5 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
11 #include <linux/acpi.h>
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
)
17 return acpi_remove_pm_notifier(dev
);
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
)
23 return acpi_remove_pm_notifier(dev
);
25 extern phys_addr_t
acpi_pci_root_get_mcfg_addr(acpi_handle handle
);
28 extern int pci_mcfg_lookup(struct acpi_pci_root
*root
, struct resource
*cfgres
,
29 struct pci_ecam_ops
**ecam_ops
);
31 static inline acpi_handle
acpi_find_root_bridge_handle(struct pci_dev
*pdev
)
33 struct pci_bus
*pbus
= pdev
->bus
;
35 /* Find a PCI root bus */
36 while (!pci_is_root_bus(pbus
))
39 return ACPI_HANDLE(pbus
->bridge
);
42 static inline acpi_handle
acpi_pci_get_bridge_handle(struct pci_bus
*pbus
)
46 if (pci_is_root_bus(pbus
))
49 /* If pbus is a virtual bus, there is no bridge to it */
53 dev
= &pbus
->self
->dev
;
56 return ACPI_HANDLE(dev
);
60 struct acpi_pci_root_ops
;
62 struct acpi_pci_root_info
{
63 struct acpi_pci_root
*root
;
64 struct acpi_device
*bridge
;
65 struct acpi_pci_root_ops
*ops
;
66 struct list_head resources
;
70 struct acpi_pci_root_ops
{
71 struct pci_ops
*pci_ops
;
72 int (*init_info
)(struct acpi_pci_root_info
*info
);
73 void (*release_info
)(struct acpi_pci_root_info
*info
);
74 int (*prepare_resources
)(struct acpi_pci_root_info
*info
);
77 extern int acpi_pci_probe_root_resources(struct acpi_pci_root_info
*info
);
78 extern struct pci_bus
*acpi_pci_root_create(struct acpi_pci_root
*root
,
79 struct acpi_pci_root_ops
*ops
,
80 struct acpi_pci_root_info
*info
,
83 void acpi_pci_add_bus(struct pci_bus
*bus
);
84 void acpi_pci_remove_bus(struct pci_bus
*bus
);
86 #ifdef CONFIG_ACPI_PCI_SLOT
87 void acpi_pci_slot_init(void);
88 void acpi_pci_slot_enumerate(struct pci_bus
*bus
);
89 void acpi_pci_slot_remove(struct pci_bus
*bus
);
91 static inline void acpi_pci_slot_init(void) { }
92 static inline void acpi_pci_slot_enumerate(struct pci_bus
*bus
) { }
93 static inline void acpi_pci_slot_remove(struct pci_bus
*bus
) { }
96 #ifdef CONFIG_HOTPLUG_PCI_ACPI
97 void acpiphp_init(void);
98 void acpiphp_enumerate_slots(struct pci_bus
*bus
);
99 void acpiphp_remove_slots(struct pci_bus
*bus
);
100 void acpiphp_check_host_bridge(struct acpi_device
*adev
);
102 static inline void acpiphp_init(void) { }
103 static inline void acpiphp_enumerate_slots(struct pci_bus
*bus
) { }
104 static inline void acpiphp_remove_slots(struct pci_bus
*bus
) { }
105 static inline void acpiphp_check_host_bridge(struct acpi_device
*adev
) { }
108 extern const u8 pci_acpi_dsm_uuid
[];
109 #define DEVICE_LABEL_DSM 0x07
110 #define RESET_DELAY_DSM 0x08
111 #define FUNCTION_DELAY_DSM 0x09
113 #else /* CONFIG_ACPI */
114 static inline void acpi_pci_add_bus(struct pci_bus
*bus
) { }
115 static inline void acpi_pci_remove_bus(struct pci_bus
*bus
) { }
116 #endif /* CONFIG_ACPI */
118 #ifdef CONFIG_ACPI_APEI
119 extern bool aer_acpi_firmware_first(void);
121 static inline bool aer_acpi_firmware_first(void) { return false; }
124 #endif /* _PCI_ACPI_H_ */