Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | /* |
3 | * File pci-acpi.h | |
4 | * | |
5 | * Copyright (C) 2004 Intel | |
6 | * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com) | |
7 | */ | |
8 | ||
9 | #ifndef _PCI_ACPI_H_ | |
10 | #define _PCI_ACPI_H_ | |
11 | ||
8b62091e AP |
12 | #include <linux/acpi.h> |
13 | ||
1da177e4 | 14 | #ifdef CONFIG_ACPI |
c072530f RW |
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) | |
17 | { | |
18 | return acpi_remove_pm_notifier(dev); | |
19 | } | |
b67ea761 RW |
20 | extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev, |
21 | struct pci_dev *pci_dev); | |
c072530f RW |
22 | static inline acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev) |
23 | { | |
24 | return acpi_remove_pm_notifier(dev); | |
25 | } | |
f4b57a3b | 26 | extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle); |
b67ea761 | 27 | |
13983eb8 TN |
28 | struct pci_ecam_ops; |
29 | extern int pci_mcfg_lookup(struct acpi_pci_root *root, struct resource *cfgres, | |
30 | struct pci_ecam_ops **ecam_ops); | |
935c760e | 31 | |
056c58e8 JS |
32 | static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev) |
33 | { | |
d18690af | 34 | struct pci_bus *pbus = pdev->bus; |
059e4ba2 | 35 | |
d18690af | 36 | /* Find a PCI root bus */ |
a222b8f8 | 37 | while (!pci_is_root_bus(pbus)) |
d18690af | 38 | pbus = pbus->parent; |
059e4ba2 | 39 | |
3a83f992 | 40 | return ACPI_HANDLE(pbus->bridge); |
056c58e8 | 41 | } |
e8c331e9 KK |
42 | |
43 | static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus) | |
44 | { | |
059e4ba2 YL |
45 | struct device *dev; |
46 | ||
47 | if (pci_is_root_bus(pbus)) | |
48 | dev = pbus->bridge; | |
32f638fc YL |
49 | else { |
50 | /* If pbus is a virtual bus, there is no bridge to it */ | |
51 | if (!pbus->self) | |
52 | return NULL; | |
53 | ||
059e4ba2 | 54 | dev = &pbus->self->dev; |
32f638fc | 55 | } |
059e4ba2 | 56 | |
3a83f992 | 57 | return ACPI_HANDLE(dev); |
e8c331e9 | 58 | } |
5090d4a6 | 59 | |
2c204383 JL |
60 | struct acpi_pci_root; |
61 | struct acpi_pci_root_ops; | |
62 | ||
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; | |
68 | char name[16]; | |
69 | }; | |
70 | ||
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); | |
76 | }; | |
77 | ||
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, | |
82 | void *sd); | |
83 | ||
5090d4a6 JL |
84 | void acpi_pci_add_bus(struct pci_bus *bus); |
85 | void acpi_pci_remove_bus(struct pci_bus *bus); | |
5c0b04e3 JL |
86 | |
87 | #ifdef CONFIG_ACPI_PCI_SLOT | |
88 | void acpi_pci_slot_init(void); | |
be1c9de9 | 89 | void acpi_pci_slot_enumerate(struct pci_bus *bus); |
5c0b04e3 JL |
90 | void acpi_pci_slot_remove(struct pci_bus *bus); |
91 | #else | |
92 | static inline void acpi_pci_slot_init(void) { } | |
be1c9de9 | 93 | static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { } |
5c0b04e3 JL |
94 | static inline void acpi_pci_slot_remove(struct pci_bus *bus) { } |
95 | #endif | |
96 | ||
3b63aaa7 JL |
97 | #ifdef CONFIG_HOTPLUG_PCI_ACPI |
98 | void acpiphp_init(void); | |
be1c9de9 | 99 | void acpiphp_enumerate_slots(struct pci_bus *bus); |
3b63aaa7 | 100 | void acpiphp_remove_slots(struct pci_bus *bus); |
1f7c164b | 101 | void acpiphp_check_host_bridge(struct acpi_device *adev); |
3b63aaa7 JL |
102 | #else |
103 | static inline void acpiphp_init(void) { } | |
be1c9de9 | 104 | static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { } |
3b63aaa7 | 105 | static inline void acpiphp_remove_slots(struct pci_bus *bus) { } |
1f7c164b | 106 | static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { } |
3b63aaa7 JL |
107 | #endif |
108 | ||
94116f81 | 109 | extern const guid_t pci_acpi_dsm_guid; |
18e94a33 | 110 | #define DEVICE_LABEL_DSM 0x07 |
e33caa82 AL |
111 | #define RESET_DELAY_DSM 0x08 |
112 | #define FUNCTION_DELAY_DSM 0x09 | |
18e94a33 | 113 | |
5090d4a6 JL |
114 | #else /* CONFIG_ACPI */ |
115 | static inline void acpi_pci_add_bus(struct pci_bus *bus) { } | |
116 | static inline void acpi_pci_remove_bus(struct pci_bus *bus) { } | |
117 | #endif /* CONFIG_ACPI */ | |
1da177e4 | 118 | |
415e12b2 RW |
119 | #ifdef CONFIG_ACPI_APEI |
120 | extern bool aer_acpi_firmware_first(void); | |
121 | #else | |
122 | static inline bool aer_acpi_firmware_first(void) { return false; } | |
123 | #endif | |
124 | ||
1da177e4 | 125 | #endif /* _PCI_ACPI_H_ */ |