1 /* Functions internal to the PCI core code */ 2 3 extern int pci_uevent(struct device *dev, struct kobj_uevent_env *env); 4 extern int pci_create_sysfs_dev_files(struct pci_dev *pdev); 5 extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev); 6 extern void pci_cleanup_rom(struct pci_dev *dev); 7 8 /* Firmware callbacks */ 9 extern pci_power_t (*platform_pci_choose_state)(struct pci_dev *dev, 10 pm_message_t state); 11 extern int (*platform_pci_set_power_state)(struct pci_dev *dev, 12 pci_power_t state); 13 14 extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val); 15 extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val); 16 extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val); 17 extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val); 18 extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val); 19 extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val); 20 21 struct pci_vpd_ops { 22 int (*read)(struct pci_dev *dev, int pos, int size, char *buf); 23 int (*write)(struct pci_dev *dev, int pos, int size, const char *buf); 24 int (*get_size)(struct pci_dev *dev); 25 void (*release)(struct pci_dev *dev); 26 }; 27 28 struct pci_vpd { 29 struct pci_vpd_ops *ops; 30 struct bin_attribute *attr; /* descriptor for sysfs VPD entry */ 31 }; 32 33 extern int pci_vpd_pci22_init(struct pci_dev *dev); 34 static inline void pci_vpd_release(struct pci_dev *dev) 35 { 36 if (dev->vpd) 37 dev->vpd->ops->release(dev); 38 } 39 40 /* PCI /proc functions */ 41 #ifdef CONFIG_PROC_FS 42 extern int pci_proc_attach_device(struct pci_dev *dev); 43 extern int pci_proc_detach_device(struct pci_dev *dev); 44 extern int pci_proc_detach_bus(struct pci_bus *bus); 45 #else 46 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; } 47 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; } 48 static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; } 49 #endif 50 51 /* Functions for PCI Hotplug drivers to use */ 52 extern unsigned int pci_do_scan_bus(struct pci_bus *bus); 53 54 extern void pci_remove_legacy_files(struct pci_bus *bus); 55 56 /* Lock for read/write access to pci device and bus lists */ 57 extern struct rw_semaphore pci_bus_sem; 58 59 extern unsigned int pci_pm_d3_delay; 60 61 #ifdef CONFIG_PCI_MSI 62 void pci_no_msi(void); 63 extern void pci_msi_init_pci_dev(struct pci_dev *dev); 64 #else 65 static inline void pci_no_msi(void) { } 66 static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { } 67 #endif 68 69 #ifdef CONFIG_PCIEAER 70 void pci_no_aer(void); 71 #else 72 static inline void pci_no_aer(void) { } 73 #endif 74 75 static inline int pci_no_d1d2(struct pci_dev *dev) 76 { 77 unsigned int parent_dstates = 0; 78 79 if (dev->bus->self) 80 parent_dstates = dev->bus->self->no_d1d2; 81 return (dev->no_d1d2 || parent_dstates); 82 83 } 84 extern int pcie_mch_quirk; 85 extern struct device_attribute pci_dev_attrs[]; 86 extern struct device_attribute dev_attr_cpuaffinity; 87 88 /** 89 * pci_match_one_device - Tell if a PCI device structure has a matching 90 * PCI device id structure 91 * @id: single PCI device id structure to match 92 * @dev: the PCI device structure to match against 93 * 94 * Returns the matching pci_device_id structure or %NULL if there is no match. 95 */ 96 static inline const struct pci_device_id * 97 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev) 98 { 99 if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) && 100 (id->device == PCI_ANY_ID || id->device == dev->device) && 101 (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) && 102 (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) && 103 !((id->class ^ dev->class) & id->class_mask)) 104 return id; 105 return NULL; 106 } 107 108 struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev); 109