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557848c3 ZY |
1 | #ifndef DRIVERS_PCI_H |
2 | #define DRIVERS_PCI_H | |
3 | ||
4 | #define PCI_CFG_SPACE_SIZE 256 | |
5 | #define PCI_CFG_SPACE_EXP_SIZE 4096 | |
6 | ||
1da177e4 LT |
7 | /* Functions internal to the PCI core code */ |
8 | ||
7eff2e7a | 9 | extern int pci_uevent(struct device *dev, struct kobj_uevent_env *env); |
1da177e4 LT |
10 | extern int pci_create_sysfs_dev_files(struct pci_dev *pdev); |
11 | extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev); | |
12 | extern void pci_cleanup_rom(struct pci_dev *dev); | |
9eff02e2 JB |
13 | #ifdef HAVE_PCI_MMAP |
14 | extern int pci_mmap_fits(struct pci_dev *pdev, int resno, | |
15 | struct vm_area_struct *vma); | |
16 | #endif | |
ce5ccdef | 17 | |
961d9120 RW |
18 | /** |
19 | * Firmware PM callbacks | |
20 | * | |
21 | * @is_manageable - returns 'true' if given device is power manageable by the | |
22 | * platform firmware | |
23 | * | |
24 | * @set_state - invokes the platform firmware to set the device's power state | |
25 | * | |
26 | * @choose_state - returns PCI power state of given device preferred by the | |
27 | * platform; to be used during system-wide transitions from a | |
28 | * sleeping state to the working state and vice versa | |
29 | * | |
eb9d0fe4 RW |
30 | * @can_wakeup - returns 'true' if given device is capable of waking up the |
31 | * system from a sleeping state | |
32 | * | |
33 | * @sleep_wake - enables/disables the system wake up capability of given device | |
34 | * | |
961d9120 RW |
35 | * If given platform is generally capable of power managing PCI devices, all of |
36 | * these callbacks are mandatory. | |
37 | */ | |
38 | struct pci_platform_pm_ops { | |
39 | bool (*is_manageable)(struct pci_dev *dev); | |
40 | int (*set_state)(struct pci_dev *dev, pci_power_t state); | |
41 | pci_power_t (*choose_state)(struct pci_dev *dev); | |
eb9d0fe4 RW |
42 | bool (*can_wakeup)(struct pci_dev *dev); |
43 | int (*sleep_wake)(struct pci_dev *dev, bool enable); | |
961d9120 RW |
44 | }; |
45 | ||
46 | extern int pci_set_platform_pm(struct pci_platform_pm_ops *ops); | |
eb9d0fe4 | 47 | extern void pci_pm_init(struct pci_dev *dev); |
0f64474b | 48 | |
e04b0ea2 BK |
49 | extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val); |
50 | extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val); | |
51 | extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val); | |
52 | extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val); | |
53 | extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val); | |
54 | extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val); | |
55 | ||
94e61088 BH |
56 | struct pci_vpd_ops { |
57 | int (*read)(struct pci_dev *dev, int pos, int size, char *buf); | |
58 | int (*write)(struct pci_dev *dev, int pos, int size, const char *buf); | |
94e61088 BH |
59 | void (*release)(struct pci_dev *dev); |
60 | }; | |
61 | ||
62 | struct pci_vpd { | |
99cb233d | 63 | unsigned int len; |
94e61088 BH |
64 | struct pci_vpd_ops *ops; |
65 | struct bin_attribute *attr; /* descriptor for sysfs VPD entry */ | |
66 | }; | |
67 | ||
68 | extern int pci_vpd_pci22_init(struct pci_dev *dev); | |
69 | static inline void pci_vpd_release(struct pci_dev *dev) | |
70 | { | |
71 | if (dev->vpd) | |
72 | dev->vpd->ops->release(dev); | |
73 | } | |
74 | ||
1da177e4 LT |
75 | /* PCI /proc functions */ |
76 | #ifdef CONFIG_PROC_FS | |
77 | extern int pci_proc_attach_device(struct pci_dev *dev); | |
78 | extern int pci_proc_detach_device(struct pci_dev *dev); | |
1da177e4 LT |
79 | extern int pci_proc_detach_bus(struct pci_bus *bus); |
80 | #else | |
81 | static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; } | |
82 | static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; } | |
1da177e4 LT |
83 | static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; } |
84 | #endif | |
85 | ||
86 | /* Functions for PCI Hotplug drivers to use */ | |
1da177e4 | 87 | extern unsigned int pci_do_scan_bus(struct pci_bus *bus); |
1da177e4 | 88 | |
f19aeb1f BH |
89 | #ifdef HAVE_PCI_LEGACY |
90 | extern void pci_create_legacy_files(struct pci_bus *bus); | |
1da177e4 | 91 | extern void pci_remove_legacy_files(struct pci_bus *bus); |
f19aeb1f BH |
92 | #else |
93 | static inline void pci_create_legacy_files(struct pci_bus *bus) { return; } | |
94 | static inline void pci_remove_legacy_files(struct pci_bus *bus) { return; } | |
95 | #endif | |
1da177e4 LT |
96 | |
97 | /* Lock for read/write access to pci device and bus lists */ | |
d71374da | 98 | extern struct rw_semaphore pci_bus_sem; |
1da177e4 | 99 | |
ffadcc2f | 100 | extern unsigned int pci_pm_d3_delay; |
88187dfa | 101 | |
4b47b0ee | 102 | #ifdef CONFIG_PCI_MSI |
309e57df | 103 | void pci_no_msi(void); |
4aa9bc95 | 104 | extern void pci_msi_init_pci_dev(struct pci_dev *dev); |
4b47b0ee | 105 | #else |
309e57df | 106 | static inline void pci_no_msi(void) { } |
4aa9bc95 | 107 | static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { } |
4b47b0ee | 108 | #endif |
8fed4b65 | 109 | |
7f785763 RD |
110 | #ifdef CONFIG_PCIEAER |
111 | void pci_no_aer(void); | |
112 | #else | |
113 | static inline void pci_no_aer(void) { } | |
114 | #endif | |
115 | ||
ffadcc2f KCA |
116 | static inline int pci_no_d1d2(struct pci_dev *dev) |
117 | { | |
118 | unsigned int parent_dstates = 0; | |
4b47b0ee | 119 | |
ffadcc2f KCA |
120 | if (dev->bus->self) |
121 | parent_dstates = dev->bus->self->no_d1d2; | |
122 | return (dev->no_d1d2 || parent_dstates); | |
123 | ||
124 | } | |
1da177e4 LT |
125 | extern int pcie_mch_quirk; |
126 | extern struct device_attribute pci_dev_attrs[]; | |
fd7d1ced | 127 | extern struct device_attribute dev_attr_cpuaffinity; |
93ff68a5 | 128 | extern struct device_attribute dev_attr_cpulistaffinity; |
1da177e4 LT |
129 | |
130 | /** | |
131 | * pci_match_one_device - Tell if a PCI device structure has a matching | |
132 | * PCI device id structure | |
133 | * @id: single PCI device id structure to match | |
134 | * @dev: the PCI device structure to match against | |
367b09fe | 135 | * |
1da177e4 LT |
136 | * Returns the matching pci_device_id structure or %NULL if there is no match. |
137 | */ | |
138 | static inline const struct pci_device_id * | |
139 | pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev) | |
140 | { | |
141 | if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) && | |
142 | (id->device == PCI_ANY_ID || id->device == dev->device) && | |
143 | (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) && | |
144 | (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) && | |
145 | !((id->class ^ dev->class) & id->class_mask)) | |
146 | return id; | |
147 | return NULL; | |
148 | } | |
149 | ||
994a65e2 | 150 | struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev); |
f46753c5 AC |
151 | |
152 | /* PCI slot sysfs helper code */ | |
153 | #define to_pci_slot(s) container_of(s, struct pci_slot, kobj) | |
154 | ||
155 | extern struct kset *pci_slots_kset; | |
156 | ||
157 | struct pci_slot_attribute { | |
158 | struct attribute attr; | |
159 | ssize_t (*show)(struct pci_slot *, char *); | |
160 | ssize_t (*store)(struct pci_slot *, const char *, size_t); | |
161 | }; | |
162 | #define to_pci_slot_attr(s) container_of(s, struct pci_slot_attribute, attr) | |
163 | ||
58c3a727 YZ |
164 | extern void pci_enable_ari(struct pci_dev *dev); |
165 | /** | |
166 | * pci_ari_enabled - query ARI forwarding status | |
167 | * @dev: the PCI device | |
168 | * | |
169 | * Returns 1 if ARI forwarding is enabled, or 0 if not enabled; | |
170 | */ | |
171 | static inline int pci_ari_enabled(struct pci_dev *dev) | |
172 | { | |
173 | return dev->ari_enabled; | |
174 | } | |
175 | ||
557848c3 | 176 | #endif /* DRIVERS_PCI_H */ |