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, pm_message_t state);
  10 extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state);
  11
  12 extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
  13 extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
  14 extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val);
  15 extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
  16 extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
  17 extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
  18
  19 /* PCI /proc functions */
  20 #ifdef CONFIG_PROC_FS
  21 extern int pci_proc_attach_device(struct pci_dev *dev);
  22 extern int pci_proc_detach_device(struct pci_dev *dev);
  23 extern int pci_proc_detach_bus(struct pci_bus *bus);
  24 #else
  25 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
  26 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
  27 static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
  28 #endif
  29
  30 /* Functions for PCI Hotplug drivers to use */
  31 extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
  32
  33 extern void pci_remove_legacy_files(struct pci_bus *bus);
  34
  35 /* Lock for read/write access to pci device and bus lists */
  36 extern struct rw_semaphore pci_bus_sem;
  37
  38 extern unsigned int pci_pm_d3_delay;
  39
  40 #ifdef CONFIG_PCI_MSI
  41 void pci_no_msi(void);
  42 extern void pci_msi_init_pci_dev(struct pci_dev *dev);
  43 #else
  44 static inline void pci_no_msi(void) { }
  45 static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
  46 #endif
  47
  48 #if defined(CONFIG_PCI_MSI) && defined(CONFIG_PM)
  49 void pci_restore_msi_state(struct pci_dev *dev);
  50 #else
  51 static inline void pci_restore_msi_state(struct pci_dev *dev) {}
  52 #endif
  53
  54 #ifdef CONFIG_PCIEAER
  55 void pci_no_aer(void);
  56 #else
  57 static inline void pci_no_aer(void) { }
  58 #endif
  59
  60 static inline int pci_no_d1d2(struct pci_dev *dev)
  61 {
  62         unsigned int parent_dstates = 0;
  63
  64         if (dev->bus->self)
  65                 parent_dstates = dev->bus->self->no_d1d2;
  66         return (dev->no_d1d2 || parent_dstates);
  67
  68 }
  69 extern int pcie_mch_quirk;
  70 extern struct device_attribute pci_dev_attrs[];
  71 extern struct class_device_attribute class_device_attr_cpuaffinity;
  72
  73 /**
  74  * pci_match_one_device - Tell if a PCI device structure has a matching
  75  *                        PCI device id structure
  76  * @id: single PCI device id structure to match
  77  * @dev: the PCI device structure to match against
  78  *
  79  * Returns the matching pci_device_id structure or %NULL if there is no match.
  80  */
  81 static inline const struct pci_device_id *
  82 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
  83 {
  84         if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) &&
  85             (id->device == PCI_ANY_ID || id->device == dev->device) &&
  86             (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) &&
  87             (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) &&
  88             !((id->class ^ dev->class) & id->class_mask))
  89                 return id;
  90         return NULL;
  91 }
  92
  93 struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev);