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,
10 pm_message_t state);
11extern int (*platform_pci_set_power_state)(struct pci_dev *dev,
12 pci_power_t state);
13
14extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
15extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
16extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val);
17extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
18extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
19extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
20
21/* PCI /proc functions */
22#ifdef CONFIG_PROC_FS
23extern int pci_proc_attach_device(struct pci_dev *dev);
24extern int pci_proc_detach_device(struct pci_dev *dev);
25extern int pci_proc_detach_bus(struct pci_bus *bus);
26#else
27static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
28static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
29static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
30#endif
31
32/* Functions for PCI Hotplug drivers to use */
33extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
34
35extern void pci_remove_legacy_files(struct pci_bus *bus);
36
37/* Lock for read/write access to pci device and bus lists */
38extern struct rw_semaphore pci_bus_sem;
39
40extern unsigned int pci_pm_d3_delay;
41
42#ifdef CONFIG_PCI_MSI
43void pci_no_msi(void);
44extern void pci_msi_init_pci_dev(struct pci_dev *dev);
45#else
46static inline void pci_no_msi(void) { }
47static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
48#endif
49
50#ifdef CONFIG_PCIEAER
51void pci_no_aer(void);
52#else
53static inline void pci_no_aer(void) { }
54#endif
55
56static 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}
65extern int pcie_mch_quirk;
66extern struct device_attribute pci_dev_attrs[];
67extern 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 */
77static inline const struct pci_device_id *
78pci_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
89struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev);