1 /* Functions internal to the PCI core code */
3 extern int __must_check __pci_enable_device(struct pci_dev *);
4 extern int pci_uevent(struct device *dev, char **envp, int num_envp,
5 char *buffer, int buffer_size);
6 extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
7 extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
8 extern void pci_cleanup_rom(struct pci_dev *dev);
9 extern int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
10 resource_size_t size, resource_size_t align,
11 resource_size_t min, unsigned int type_mask,
12 void (*alignf)(void *, struct resource *,
13 resource_size_t, resource_size_t),
15 /* Firmware callbacks */
16 extern int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state);
17 extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state);
19 extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
20 extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
21 extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val);
22 extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
23 extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
24 extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
26 /* PCI /proc functions */
28 extern int pci_proc_attach_device(struct pci_dev *dev);
29 extern int pci_proc_detach_device(struct pci_dev *dev);
30 extern int pci_proc_detach_bus(struct pci_bus *bus);
32 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
33 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
34 static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
37 /* Functions for PCI Hotplug drivers to use */
38 extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
39 extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap);
41 extern void pci_remove_legacy_files(struct pci_bus *bus);
43 /* Lock for read/write access to pci device and bus lists */
44 extern struct rw_semaphore pci_bus_sem;
47 extern int pci_msi_quirk;
49 #define pci_msi_quirk 0
51 extern unsigned int pci_pm_d3_delay;
53 void disable_msi_mode(struct pci_dev *dev, int pos, int type);
54 void pci_no_msi(void);
56 static inline void disable_msi_mode(struct pci_dev *dev, int pos, int type) { }
57 static inline void pci_no_msi(void) { }
59 #if defined(CONFIG_PCI_MSI) && defined(CONFIG_PM)
60 int pci_save_msi_state(struct pci_dev *dev);
61 int pci_save_msix_state(struct pci_dev *dev);
62 void pci_restore_msi_state(struct pci_dev *dev);
63 void pci_restore_msix_state(struct pci_dev *dev);
65 static inline int pci_save_msi_state(struct pci_dev *dev) { return 0; }
66 static inline int pci_save_msix_state(struct pci_dev *dev) { return 0; }
67 static inline void pci_restore_msi_state(struct pci_dev *dev) {}
68 static inline void pci_restore_msix_state(struct pci_dev *dev) {}
70 static inline int pci_no_d1d2(struct pci_dev *dev)
72 unsigned int parent_dstates = 0;
75 parent_dstates = dev->bus->self->no_d1d2;
76 return (dev->no_d1d2 || parent_dstates);
79 extern int pcie_mch_quirk;
80 extern struct device_attribute pci_dev_attrs[];
81 extern struct class_device_attribute class_device_attr_cpuaffinity;
84 * pci_match_one_device - Tell if a PCI device structure has a matching
85 * PCI device id structure
86 * @id: single PCI device id structure to match
87 * @dev: the PCI device structure to match against
89 * Returns the matching pci_device_id structure or %NULL if there is no match.
91 static inline const struct pci_device_id *
92 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
94 if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) &&
95 (id->device == PCI_ANY_ID || id->device == dev->device) &&
96 (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) &&
97 (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) &&
98 !((id->class ^ dev->class) & id->class_mask))