fix SMP data race in pagetable setup vs walking
[linux-2.6] / include / asm-alpha / gct.h
1 #ifndef __ALPHA_GCT_H
2 #define __ALPHA_GCT_H
3
4 typedef u64 gct_id;
5 typedef u64 gct6_handle;
6
7 typedef struct __gct6_node {
8         u8 type;        
9         u8 subtype;
10         u16 size;
11         u32 hd_extension;
12         gct6_handle owner;
13         gct6_handle active_user;
14         gct_id id;
15         u64 flags;
16         u16 rev;
17         u16 change_counter;
18         u16 max_child;
19         u16 reserved1;
20         gct6_handle saved_owner;
21         gct6_handle affinity;
22         gct6_handle parent;
23         gct6_handle next;
24         gct6_handle prev;
25         gct6_handle child;
26         u64 fw_flags;
27         u64 os_usage;
28         u64 fru_id;
29         u32 checksum;
30         u32 magic;      /* 'GLXY' */
31 } gct6_node;
32
33 typedef struct {
34         u8 type;        
35         u8 subtype;
36         void (*callout)(gct6_node *);
37 } gct6_search_struct;
38
39 #define GCT_NODE_MAGIC    0x59584c47    /* 'GLXY' */
40
41 /* 
42  * node types 
43  */
44 #define GCT_TYPE_HOSE                   0x0E
45
46 /*
47  * node subtypes
48  */
49 #define GCT_SUBTYPE_IO_PORT_MODULE      0x2C
50
51 #define GCT_NODE_PTR(off) ((gct6_node *)((char *)hwrpb +                \
52                                          hwrpb->frut_offset +           \
53                                          (gct6_handle)(off)))           \
54
55 int gct6_find_nodes(gct6_node *, gct6_search_struct *);
56
57 #endif /* __ALPHA_GCT_H */
58