1 /* Functions internal to the PCI core code */
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);
9 * Firmware PM callbacks
11 * @is_manageable - returns 'true' if given device is power manageable by the
14 * @set_state - invokes the platform firmware to set the device's power state
16 * @choose_state - returns PCI power state of given device preferred by the
17 * platform; to be used during system-wide transitions from a
18 * sleeping state to the working state and vice versa
20 * @can_wakeup - returns 'true' if given device is capable of waking up the
21 * system from a sleeping state
23 * @sleep_wake - enables/disables the system wake up capability of given device
25 * If given platform is generally capable of power managing PCI devices, all of
26 * these callbacks are mandatory.
28 struct pci_platform_pm_ops {
29 bool (*is_manageable)(struct pci_dev *dev);
30 int (*set_state)(struct pci_dev *dev, pci_power_t state);
31 pci_power_t (*choose_state)(struct pci_dev *dev);
32 bool (*can_wakeup)(struct pci_dev *dev);
33 int (*sleep_wake)(struct pci_dev *dev, bool enable);
36 extern int pci_set_platform_pm(struct pci_platform_pm_ops *ops);
37 extern void pci_pm_init(struct pci_dev *dev);
39 extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
40 extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
41 extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val);
42 extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
43 extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
44 extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
47 int (*read)(struct pci_dev *dev, int pos, int size, char *buf);
48 int (*write)(struct pci_dev *dev, int pos, int size, const char *buf);
49 void (*release)(struct pci_dev *dev);
54 struct pci_vpd_ops *ops;
55 struct bin_attribute *attr; /* descriptor for sysfs VPD entry */
58 extern int pci_vpd_pci22_init(struct pci_dev *dev);
59 static inline void pci_vpd_release(struct pci_dev *dev)
62 dev->vpd->ops->release(dev);
65 /* PCI /proc functions */
67 extern int pci_proc_attach_device(struct pci_dev *dev);
68 extern int pci_proc_detach_device(struct pci_dev *dev);
69 extern int pci_proc_detach_bus(struct pci_bus *bus);
71 static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
72 static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
73 static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
76 /* Functions for PCI Hotplug drivers to use */
77 extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
79 extern void pci_remove_legacy_files(struct pci_bus *bus);
81 /* Lock for read/write access to pci device and bus lists */
82 extern struct rw_semaphore pci_bus_sem;
84 extern unsigned int pci_pm_d3_delay;
87 void pci_no_msi(void);
88 extern void pci_msi_init_pci_dev(struct pci_dev *dev);
90 static inline void pci_no_msi(void) { }
91 static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
95 void pci_no_aer(void);
97 static inline void pci_no_aer(void) { }
100 static inline int pci_no_d1d2(struct pci_dev *dev)
102 unsigned int parent_dstates = 0;
105 parent_dstates = dev->bus->self->no_d1d2;
106 return (dev->no_d1d2 || parent_dstates);
109 extern int pcie_mch_quirk;
110 extern struct device_attribute pci_dev_attrs[];
111 extern struct device_attribute dev_attr_cpuaffinity;
114 * pci_match_one_device - Tell if a PCI device structure has a matching
115 * PCI device id structure
116 * @id: single PCI device id structure to match
117 * @dev: the PCI device structure to match against
119 * Returns the matching pci_device_id structure or %NULL if there is no match.
121 static inline const struct pci_device_id *
122 pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev)
124 if ((id->vendor == PCI_ANY_ID || id->vendor == dev->vendor) &&
125 (id->device == PCI_ANY_ID || id->device == dev->device) &&
126 (id->subvendor == PCI_ANY_ID || id->subvendor == dev->subsystem_vendor) &&
127 (id->subdevice == PCI_ANY_ID || id->subdevice == dev->subsystem_device) &&
128 !((id->class ^ dev->class) & id->class_mask))
133 struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev);
135 /* PCI slot sysfs helper code */
136 #define to_pci_slot(s) container_of(s, struct pci_slot, kobj)
138 extern struct kset *pci_slots_kset;
140 struct pci_slot_attribute {
141 struct attribute attr;
142 ssize_t (*show)(struct pci_slot *, char *);
143 ssize_t (*store)(struct pci_slot *, const char *, size_t);
145 #define to_pci_slot_attr(s) container_of(s, struct pci_slot_attribute, attr)