1 /* Functions internal to the PCI core code */ 2 3 extern int __must_check __pci_reenable_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), 14 void *alignf_data); 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); 18 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); 25 26 /* PCI /proc functions */ 27 #ifdef CONFIG_PROC_FS 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); 31 #else 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; } 35 #endif 36 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); 40 41 extern void pci_remove_legacy_files(struct pci_bus *bus); 42 43 /* Lock for read/write access to pci device and bus lists */ 44 extern struct rw_semaphore pci_bus_sem; 45 46 extern unsigned int pci_pm_d3_delay; 47 48 #ifdef CONFIG_PCI_MSI 49 void disable_msi_mode(struct pci_dev *dev, int pos, int type); 50 void pci_no_msi(void); 51 #else 52 static inline void disable_msi_mode(struct pci_dev *dev, int pos, int type) { } 53 static inline void pci_no_msi(void) { } 54 #endif 55 56 #if defined(CONFIG_PCI_MSI) && defined(CONFIG_PM) 57 int pci_save_msi_state(struct pci_dev *dev); 58 void pci_restore_msi_state(struct pci_dev *dev); 59 #else 60 static inline int pci_save_msi_state(struct pci_dev *dev) { return 0; } 61 static inline void pci_restore_msi_state(struct pci_dev *dev) {} 62 #endif 63 64 static inline int pci_no_d1d2(struct pci_dev *dev) 65 { 66 unsigned int parent_dstates = 0; 67 68 if (dev->bus->self) 69 parent_dstates = dev->bus->self->no_d1d2; 70 return (dev->no_d1d2 || parent_dstates); 71 72 } 73 extern int pcie_mch_quirk; 74 extern struct device_attribute pci_dev_attrs[]; 75 extern struct class_device_attribute class_device_attr_cpuaffinity; 76 77 /** 78 * pci_match_one_device - Tell if a PCI device structure has a matching 79 * PCI device id structure 80 * @id: single PCI device id structure to match 81 * @dev: the PCI device structure to match against 82 * 83 * Returns the matching pci_device_id structure or %NULL if there is no match. 84 */ 85 static inline const struct pci_device_id * 86 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev) 87 { 88 if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) && 89 (id->device == PCI_ANY_ID || id->device == dev->device) && 90 (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) && 91 (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) && 92 !((id->class ^ dev->class) & id->class_mask)) 93 return id; 94 return NULL; 95 } 96 97