1 /* Functions internal to the PCI core code */
3 extern int pci_uevent(struct device *dev, char **envp, int num_envp,
4 char *buffer, int buffer_size);
5 extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
6 extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
7 extern void pci_cleanup_rom(struct pci_dev *dev);
9 /* Firmware callbacks */
10 extern pci_power_t (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state);
11 extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state);
13 extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
14 extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
15 extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val);
16 extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
17 extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
18 extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
20 /* PCI /proc functions */
22 extern int pci_proc_attach_device(struct pci_dev *dev);
23 extern int pci_proc_detach_device(struct pci_dev *dev);
24 extern int pci_proc_detach_bus(struct pci_bus *bus);
26 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
27 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
28 static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
31 /* Functions for PCI Hotplug drivers to use */
32 extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
34 extern void pci_remove_legacy_files(struct pci_bus *bus);
36 /* Lock for read/write access to pci device and bus lists */
37 extern struct rw_semaphore pci_bus_sem;
39 extern unsigned int pci_pm_d3_delay;
42 void pci_no_msi(void);
43 extern void pci_msi_init_pci_dev(struct pci_dev *dev);
45 static inline void pci_no_msi(void) { }
46 static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
49 #if defined(CONFIG_PCI_MSI) && defined(CONFIG_PM)
50 void pci_restore_msi_state(struct pci_dev *dev);
52 static inline void pci_restore_msi_state(struct pci_dev *dev) {}
55 static inline int pci_no_d1d2(struct pci_dev *dev)
57 unsigned int parent_dstates = 0;
60 parent_dstates = dev->bus->self->no_d1d2;
61 return (dev->no_d1d2 || parent_dstates);
64 extern int pcie_mch_quirk;
65 extern struct device_attribute pci_dev_attrs[];
66 extern struct class_device_attribute class_device_attr_cpuaffinity;
69 * pci_match_one_device - Tell if a PCI device structure has a matching
70 * PCI device id structure
71 * @id: single PCI device id structure to match
72 * @dev: the PCI device structure to match against
74 * Returns the matching pci_device_id structure or %NULL if there is no match.
76 static inline const struct pci_device_id *
77 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
79 if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) &&
80 (id->device == PCI_ANY_ID || id->device == dev->device) &&
81 (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) &&
82 (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) &&
83 !((id->class ^ dev->class) & id->class_mask))