1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* 2 /*
3 * File pci-acpi.h 3 * File pci-acpi.h
4 * 4 *
5 * Copyright (C) 2004 Intel 5 * Copyright (C) 2004 Intel
6 * Copyright (C) Tom Long Nguyen (tom.l.nguyen 6 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
7 */ 7 */
8 8
9 #ifndef _PCI_ACPI_H_ 9 #ifndef _PCI_ACPI_H_
10 #define _PCI_ACPI_H_ 10 #define _PCI_ACPI_H_
11 11
12 #include <linux/acpi.h> 12 #include <linux/acpi.h>
13 13
14 #ifdef CONFIG_ACPI 14 #ifdef CONFIG_ACPI
15 extern acpi_status pci_acpi_add_bus_pm_notifie 15 extern acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev);
16 static inline acpi_status pci_acpi_remove_bus_ 16 static inline acpi_status pci_acpi_remove_bus_pm_notifier(struct acpi_device *dev)
17 { 17 {
18 return acpi_remove_pm_notifier(dev); 18 return acpi_remove_pm_notifier(dev);
19 } 19 }
20 extern acpi_status pci_acpi_add_pm_notifier(st 20 extern acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
21 s 21 struct pci_dev *pci_dev);
22 static inline acpi_status pci_acpi_remove_pm_n 22 static inline acpi_status pci_acpi_remove_pm_notifier(struct acpi_device *dev)
23 { 23 {
24 return acpi_remove_pm_notifier(dev); 24 return acpi_remove_pm_notifier(dev);
25 } 25 }
26 extern phys_addr_t acpi_pci_root_get_mcfg_addr 26 extern phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle);
27 27
28 struct pci_ecam_ops; 28 struct pci_ecam_ops;
29 extern int pci_mcfg_lookup(struct acpi_pci_roo 29 extern int pci_mcfg_lookup(struct acpi_pci_root *root, struct resource *cfgres,
30 const struct pci_ec 30 const struct pci_ecam_ops **ecam_ops);
31 31
32 static inline acpi_handle acpi_find_root_bridg 32 static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
33 { 33 {
34 struct pci_bus *pbus = pdev->bus; 34 struct pci_bus *pbus = pdev->bus;
35 35
36 /* Find a PCI root bus */ 36 /* Find a PCI root bus */
37 while (!pci_is_root_bus(pbus)) 37 while (!pci_is_root_bus(pbus))
38 pbus = pbus->parent; 38 pbus = pbus->parent;
39 39
40 return ACPI_HANDLE(pbus->bridge); 40 return ACPI_HANDLE(pbus->bridge);
41 } 41 }
42 42
43 static inline acpi_handle acpi_pci_get_bridge_ 43 static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
44 { 44 {
45 struct device *dev; 45 struct device *dev;
46 46
47 if (pci_is_root_bus(pbus)) 47 if (pci_is_root_bus(pbus))
48 dev = pbus->bridge; 48 dev = pbus->bridge;
49 else { 49 else {
50 /* If pbus is a virtual bus, t 50 /* If pbus is a virtual bus, there is no bridge to it */
51 if (!pbus->self) 51 if (!pbus->self)
52 return NULL; 52 return NULL;
53 53
54 dev = &pbus->self->dev; 54 dev = &pbus->self->dev;
55 } 55 }
56 56
57 return ACPI_HANDLE(dev); 57 return ACPI_HANDLE(dev);
58 } 58 }
59 59
60 struct acpi_pci_root; 60 struct acpi_pci_root;
61 struct acpi_pci_root_ops; 61 struct acpi_pci_root_ops;
62 62
63 struct acpi_pci_root_info { 63 struct acpi_pci_root_info {
64 struct acpi_pci_root *root; 64 struct acpi_pci_root *root;
65 struct acpi_device *bridg 65 struct acpi_device *bridge;
66 struct acpi_pci_root_ops *ops; 66 struct acpi_pci_root_ops *ops;
67 struct list_head resour 67 struct list_head resources;
68 char name[1 68 char name[16];
69 }; 69 };
70 70
71 struct acpi_pci_root_ops { 71 struct acpi_pci_root_ops {
72 struct pci_ops *pci_ops; 72 struct pci_ops *pci_ops;
73 int (*init_info)(struct acpi_pci_root_ 73 int (*init_info)(struct acpi_pci_root_info *info);
74 void (*release_info)(struct acpi_pci_r 74 void (*release_info)(struct acpi_pci_root_info *info);
75 int (*prepare_resources)(struct acpi_p 75 int (*prepare_resources)(struct acpi_pci_root_info *info);
76 }; 76 };
77 77
78 extern int acpi_pci_probe_root_resources(struc 78 extern int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info);
79 extern struct pci_bus *acpi_pci_root_create(st 79 extern struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
80 st 80 struct acpi_pci_root_ops *ops,
81 st 81 struct acpi_pci_root_info *info,
82 vo 82 void *sd);
83 83
84 void acpi_pci_add_bus(struct pci_bus *bus); 84 void acpi_pci_add_bus(struct pci_bus *bus);
85 void acpi_pci_remove_bus(struct pci_bus *bus); 85 void acpi_pci_remove_bus(struct pci_bus *bus);
86 86
87 #ifdef CONFIG_PCI 87 #ifdef CONFIG_PCI
88 void pci_acpi_setup(struct device *dev, struct 88 void pci_acpi_setup(struct device *dev, struct acpi_device *adev);
89 void pci_acpi_cleanup(struct device *dev, stru 89 void pci_acpi_cleanup(struct device *dev, struct acpi_device *adev);
90 #else 90 #else
91 static inline void pci_acpi_setup(struct devic 91 static inline void pci_acpi_setup(struct device *dev, struct acpi_device *adev) {}
92 static inline void pci_acpi_cleanup(struct dev 92 static inline void pci_acpi_cleanup(struct device *dev, struct acpi_device *adev) {}
93 #endif 93 #endif
94 94
95 #ifdef CONFIG_ACPI_PCI_SLOT 95 #ifdef CONFIG_ACPI_PCI_SLOT
96 void acpi_pci_slot_init(void); 96 void acpi_pci_slot_init(void);
97 void acpi_pci_slot_enumerate(struct pci_bus *b 97 void acpi_pci_slot_enumerate(struct pci_bus *bus);
98 void acpi_pci_slot_remove(struct pci_bus *bus) 98 void acpi_pci_slot_remove(struct pci_bus *bus);
99 #else 99 #else
100 static inline void acpi_pci_slot_init(void) { 100 static inline void acpi_pci_slot_init(void) { }
101 static inline void acpi_pci_slot_enumerate(str 101 static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { }
102 static inline void acpi_pci_slot_remove(struct 102 static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
103 #endif 103 #endif
104 104
105 #ifdef CONFIG_HOTPLUG_PCI_ACPI 105 #ifdef CONFIG_HOTPLUG_PCI_ACPI
106 void acpiphp_init(void); 106 void acpiphp_init(void);
107 void acpiphp_enumerate_slots(struct pci_bus *b 107 void acpiphp_enumerate_slots(struct pci_bus *bus);
108 void acpiphp_remove_slots(struct pci_bus *bus) 108 void acpiphp_remove_slots(struct pci_bus *bus);
109 void acpiphp_check_host_bridge(struct acpi_dev 109 void acpiphp_check_host_bridge(struct acpi_device *adev);
110 #else 110 #else
111 static inline void acpiphp_init(void) { } 111 static inline void acpiphp_init(void) { }
112 static inline void acpiphp_enumerate_slots(str 112 static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { }
113 static inline void acpiphp_remove_slots(struct 113 static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
114 static inline void acpiphp_check_host_bridge(s 114 static inline void acpiphp_check_host_bridge(struct acpi_device *adev) { }
115 #endif 115 #endif
116 116
117 extern const guid_t pci_acpi_dsm_guid; 117 extern const guid_t pci_acpi_dsm_guid;
118 118
119 /* _DSM Definitions for PCI */ 119 /* _DSM Definitions for PCI */
120 #define DSM_PCI_PRESERVE_BOOT_CONFIG 120 #define DSM_PCI_PRESERVE_BOOT_CONFIG 0x05
121 #define DSM_PCI_DEVICE_NAME 121 #define DSM_PCI_DEVICE_NAME 0x07
122 #define DSM_PCI_POWER_ON_RESET_DELAY 122 #define DSM_PCI_POWER_ON_RESET_DELAY 0x08
123 #define DSM_PCI_DEVICE_READINESS_DURATIONS 123 #define DSM_PCI_DEVICE_READINESS_DURATIONS 0x09
124 124
125 #ifdef CONFIG_PCIE_EDR 125 #ifdef CONFIG_PCIE_EDR
126 void pci_acpi_add_edr_notifier(struct pci_dev 126 void pci_acpi_add_edr_notifier(struct pci_dev *pdev);
127 void pci_acpi_remove_edr_notifier(struct pci_d 127 void pci_acpi_remove_edr_notifier(struct pci_dev *pdev);
128 #else 128 #else
129 static inline void pci_acpi_add_edr_notifier(s 129 static inline void pci_acpi_add_edr_notifier(struct pci_dev *pdev) { }
130 static inline void pci_acpi_remove_edr_notifie 130 static inline void pci_acpi_remove_edr_notifier(struct pci_dev *pdev) { }
131 #endif /* CONFIG_PCIE_EDR */ 131 #endif /* CONFIG_PCIE_EDR */
132 132
133 int pci_acpi_set_companion_lookup_hook(struct 133 int pci_acpi_set_companion_lookup_hook(struct acpi_device *(*func)(struct pci_dev *));
134 void pci_acpi_clear_companion_lookup_hook(void 134 void pci_acpi_clear_companion_lookup_hook(void);
135 135
136 #else /* CONFIG_ACPI */ 136 #else /* CONFIG_ACPI */
137 static inline void acpi_pci_add_bus(struct pci 137 static inline void acpi_pci_add_bus(struct pci_bus *bus) { }
138 static inline void acpi_pci_remove_bus(struct 138 static inline void acpi_pci_remove_bus(struct pci_bus *bus) { }
139 #endif /* CONFIG_ACPI */ 139 #endif /* CONFIG_ACPI */
140 140
141 #endif /* _PCI_ACPI_H_ */ 141 #endif /* _PCI_ACPI_H_ */
142 142
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