tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* Functions internal to the PCI core code */
2
3extern int pci_uevent(struct device *dev, struct kobj_uevent_env *env);
4extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
5extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
6extern void pci_cleanup_rom(struct pci_dev *dev);
7
8/* Firmware callbacks */
9extern pci_power_t (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state);
10extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state);
11
12extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
13extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
14extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val);
15extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
16extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
17extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
18
19/* PCI /proc functions */
20#ifdef CONFIG_PROC_FS
21extern int pci_proc_attach_device(struct pci_dev *dev);
22extern int pci_proc_detach_device(struct pci_dev *dev);
23extern int pci_proc_detach_bus(struct pci_bus *bus);
24#else
25static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
26static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
27static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
28#endif
29
30/* Functions for PCI Hotplug drivers to use */
31extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
32
33extern void pci_remove_legacy_files(struct pci_bus *bus);
34
35/* Lock for read/write access to pci device and bus lists */
36extern struct rw_semaphore pci_bus_sem;
37
38extern unsigned int pci_pm_d3_delay;
39
40#ifdef CONFIG_PCI_MSI
41void pci_no_msi(void);
42extern void pci_msi_init_pci_dev(struct pci_dev *dev);
43#else
44static inline void pci_no_msi(void) { }
45static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
46#endif
47
48#if defined(CONFIG_PCI_MSI) && defined(CONFIG_PM)
49void pci_restore_msi_state(struct pci_dev *dev);
50#else
51static inline void pci_restore_msi_state(struct pci_dev *dev) {}
52#endif
53
54#ifdef CONFIG_PCIEAER
55void pci_no_aer(void);
56#else
57static inline void pci_no_aer(void) { }
58#endif
59
60static 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}
69extern int pcie_mch_quirk;
70extern struct device_attribute pci_dev_attrs[];
71extern 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 */
81static inline const struct pci_device_id *
82pci_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
93struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev);