1/* Functions internal to the PCI core code */ 2 3extern int __must_check __pci_reenable_device(struct pci_dev *); 4extern int pci_uevent(struct device *dev, char **envp, int num_envp, 5 char *buffer, int buffer_size); 6extern 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, 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), 14 void *alignf_data); 15/* Firmware callbacks */ 16extern int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state); 17extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state); 18 19extern 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 26/* 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); 30extern 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; } 34static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; } 35#endif 36 37/* Functions for PCI Hotplug drivers to use */ 38extern unsigned int pci_do_scan_bus(struct pci_bus *bus); 39extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap); 40 41extern void pci_remove_legacy_files(struct pci_bus *bus); 42 43/* Lock for read/write access to pci device and bus lists */ 44extern struct rw_semaphore pci_bus_sem; 45 46extern unsigned int pci_pm_d3_delay; 47 48#ifdef CONFIG_PCI_MSI 49void pci_no_msi(void); 50extern void pci_msi_init_pci_dev(struct pci_dev *dev); 51#else 52static inline void pci_no_msi(void) { } 53static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { } 54#endif 55 56#if defined(CONFIG_PCI_MSI) && defined(CONFIG_PM) 57void pci_restore_msi_state(struct pci_dev *dev); 58#else 59static inline void pci_restore_msi_state(struct pci_dev *dev) {} 60#endif 61 62static inline int pci_no_d1d2(struct pci_dev *dev) 63{ 64 unsigned int parent_dstates = 0; 65 66 if (dev->bus->self) 67 parent_dstates = dev->bus->self->no_d1d2; 68 return (dev->no_d1d2 || parent_dstates); 69 70} 71extern 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