drivers/pci/pci.h

   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 /* PCI /proc functions */
  22 #ifdef CONFIG_PROC_FS
  23 extern int pci_proc_attach_device(struct pci_dev *dev);
  24 extern int pci_proc_detach_device(struct pci_dev *dev);
  25 extern int pci_proc_detach_bus(struct pci_bus *bus);
  26 #else
  27 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
  28 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
  29 static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
  30 #endif
  31
  32 /* Functions for PCI Hotplug drivers to use */
  33 extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
  34
  35 extern void pci_remove_legacy_files(struct pci_bus *bus);
  36
  37 /* Lock for read/write access to pci device and bus lists */
  38 extern struct rw_semaphore pci_bus_sem;
  39
  40 extern unsigned int pci_pm_d3_delay;
  41
  42 #ifdef CONFIG_PCI_MSI
  43 void pci_no_msi(void);
  44 extern void pci_msi_init_pci_dev(struct pci_dev *dev);
  45 #else
  46 static inline void pci_no_msi(void) { }
  47 static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
  48 #endif
  49
  50 #ifdef CONFIG_PCIEAER
  51 void pci_no_aer(void);
  52 #else
  53 static inline void pci_no_aer(void) { }
  54 #endif
  55
  56 static inline int pci_no_d1d2(struct pci_dev *dev)
  57 {
  58         unsigned int parent_dstates = 0;
  59
  60         if (dev->bus->self)
  61                 parent_dstates = dev->bus->self->no_d1d2;
  62         return (dev->no_d1d2 || parent_dstates);
  63
  64 }
  65 extern int pcie_mch_quirk;
  66 extern struct device_attribute pci_dev_attrs[];
  67 extern struct device_attribute dev_attr_cpuaffinity;
  68
  69 /**
  70  * pci_match_one_device - Tell if a PCI device structure has a matching
  71  *                        PCI device id structure
  72  * @id: single PCI device id structure to match
  73  * @dev: the PCI device structure to match against
  74  *
  75  * Returns the matching pci_device_id structure or %NULL if there is no match.
  76  */
  77 static inline const struct pci_device_id *
  78 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
  79 {
  80         if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) &&
  81             (id->device == PCI_ANY_ID || id->device == dev->device) &&
  82             (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) &&
  83             (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) &&
  84             !((id->class ^ dev->class) & id->class_mask))
  85                 return id;
  86         return NULL;
  87 }
  88
  89 struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev);