1#ifndef DEVICE_PATH_H
2#define DEVICE_PATH_H
3
4enum device_path_type {
5 DEVICE_PATH_NONE = 0,
6 DEVICE_PATH_ROOT,
7 DEVICE_PATH_PCI,
8 DEVICE_PATH_PNP,
9 DEVICE_PATH_I2C,
10 DEVICE_PATH_APIC,
11 DEVICE_PATH_PCI_DOMAIN,
12 DEVICE_PATH_APIC_CLUSTER,
13 DEVICE_PATH_CPU,
14 DEVICE_PATH_CPU_BUS,
15};
16
17struct pci_domain_path
18{
19 unsigned domain;
20};
21
22struct pci_path
23{
24 unsigned devfn;
25};
26
27struct pnp_path
28{
29 unsigned port;
30 unsigned device;
31};
32
33struct i2c_path
34{
35 unsigned device;
36};
37
38struct apic_path
39{
40 unsigned apic_id;
41 unsigned node_id;
42 unsigned core_id;
43};
44
45struct apic_cluster_path
46{
47 unsigned cluster;
48};
49
50struct cpu_path
51{
52 unsigned id;
53};
54
55struct cpu_bus_path
56{
57 unsigned id;
58};
59
60
61struct device_path {
62 enum device_path_type type;
63 union {
64 struct pci_path pci;
65 struct pnp_path pnp;
66 struct i2c_path i2c;
67 struct apic_path apic;
68 struct pci_domain_path pci_domain;
69 struct apic_cluster_path apic_cluster;
70 struct cpu_path cpu;
71 struct cpu_bus_path cpu_bus;
72 };
73};
74
75
76#define DEVICE_PATH_MAX 30
77#define BUS_PATH_MAX (DEVICE_PATH_MAX+10)
78
79extern int path_eq(struct device_path *path1, struct device_path *path2);
80
81#endif
82
