blob: 3fec13d3add7cbdd72d94516deb4236ca6dcb76f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* Functions internal to the PCI core code */
2
Hidetoshi Seto38cc1302006-12-18 10:30:00 +09003extern int __must_check __pci_reenable_device(struct pci_dev *);
Kay Sievers312c0042005-11-16 09:00:00 +01004extern int pci_uevent(struct device *dev, char **envp, int num_envp,
5 char *buffer, int buffer_size);
Linus Torvalds1da177e2005-04-16 15:20:36 -07006extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
7extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
8extern void pci_cleanup_rom(struct pci_dev *dev);
9extern int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
Greg Kroah-Hartmane31dd6e2006-06-12 17:06:02 -070010 resource_size_t size, resource_size_t align,
11 resource_size_t min, unsigned int type_mask,
Linus Torvalds1da177e2005-04-16 15:20:36 -070012 void (*alignf)(void *, struct resource *,
Greg Kroah-Hartmane31dd6e2006-06-12 17:06:02 -070013 resource_size_t, resource_size_t),
Linus Torvalds1da177e2005-04-16 15:20:36 -070014 void *alignf_data);
David Shaohua Li0f644742005-03-19 00:15:48 -050015/* Firmware callbacks */
16extern int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state);
David Shaohua Lib9131002005-03-19 00:16:18 -050017extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state);
David Shaohua Li0f644742005-03-19 00:15:48 -050018
Brian Kinge04b0ea2005-09-27 01:21:55 -070019extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
20extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
21extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val);
22extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
23extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
24extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
25
Linus Torvalds1da177e2005-04-16 15:20:36 -070026/* PCI /proc functions */
27#ifdef CONFIG_PROC_FS
28extern int pci_proc_attach_device(struct pci_dev *dev);
29extern int pci_proc_detach_device(struct pci_dev *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -070030extern int pci_proc_detach_bus(struct pci_bus *bus);
31#else
32static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
33static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
Linus Torvalds1da177e2005-04-16 15:20:36 -070034static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
35#endif
36
37/* Functions for PCI Hotplug drivers to use */
Linus Torvalds1da177e2005-04-16 15:20:36 -070038extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
Linus Torvalds1da177e2005-04-16 15:20:36 -070039extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap);
40
Linus Torvalds1da177e2005-04-16 15:20:36 -070041extern void pci_remove_legacy_files(struct pci_bus *bus);
42
43/* Lock for read/write access to pci device and bus lists */
Zhang Yanmind71374d2006-06-02 12:35:43 +080044extern struct rw_semaphore pci_bus_sem;
Linus Torvalds1da177e2005-04-16 15:20:36 -070045
Kristen Carlson Accardiffadcc22006-07-12 08:59:00 -070046extern unsigned int pci_pm_d3_delay;
Michael Ellerman88187df2007-01-25 19:34:07 +110047
Andrew Morton4b47b0e2005-08-16 15:16:05 -070048#ifdef CONFIG_PCI_MSI
Matthew Wilcox309e57d2006-03-05 22:33:34 -070049void pci_no_msi(void);
Michael Ellerman4aa9bc92007-04-05 17:19:10 +100050extern void pci_msi_init_pci_dev(struct pci_dev *dev);
Andrew Morton4b47b0e2005-08-16 15:16:05 -070051#else
Matthew Wilcox309e57d2006-03-05 22:33:34 -070052static inline void pci_no_msi(void) { }
Michael Ellerman4aa9bc92007-04-05 17:19:10 +100053static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
Andrew Morton4b47b0e2005-08-16 15:16:05 -070054#endif
Michael Ellerman8fed4b62007-01-25 19:34:08 +110055
Shaohua Li41017f02006-02-08 17:11:38 +080056#if defined(CONFIG_PCI_MSI) && defined(CONFIG_PM)
Shaohua Li41017f02006-02-08 17:11:38 +080057void pci_restore_msi_state(struct pci_dev *dev);
Shaohua Li41017f02006-02-08 17:11:38 +080058#else
Shaohua Li41017f02006-02-08 17:11:38 +080059static inline void pci_restore_msi_state(struct pci_dev *dev) {}
Shaohua Li41017f02006-02-08 17:11:38 +080060#endif
Michael Ellerman8fed4b62007-01-25 19:34:08 +110061
Kristen Carlson Accardiffadcc22006-07-12 08:59:00 -070062static inline int pci_no_d1d2(struct pci_dev *dev)
63{
64 unsigned int parent_dstates = 0;
Andrew Morton4b47b0e2005-08-16 15:16:05 -070065
Kristen Carlson Accardiffadcc22006-07-12 08:59:00 -070066 if (dev->bus->self)
67 parent_dstates = dev->bus->self->no_d1d2;
68 return (dev->no_d1d2 || parent_dstates);
69
70}
Linus Torvalds1da177e2005-04-16 15:20:36 -070071extern int pcie_mch_quirk;
72extern struct device_attribute pci_dev_attrs[];
73extern struct class_device_attribute class_device_attr_cpuaffinity;
74
75/**
76 * pci_match_one_device - Tell if a PCI device structure has a matching
77 * PCI device id structure
78 * @id: single PCI device id structure to match
79 * @dev: the PCI device structure to match against
80 *
81 * Returns the matching pci_device_id structure or %NULL if there is no match.
82 */
83static inline const struct pci_device_id *
84pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
85{
86 if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) &&
87 (id->device == PCI_ANY_ID || id->device == dev->device) &&
88 (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) &&
89 (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) &&
90 !((id->class ^ dev->class) & id->class_mask))
91 return id;
92 return NULL;
93}
94