1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ALPHA_GCT_H
3 #define __ALPHA_GCT_H
4 
5 typedef u64 gct_id;
6 typedef u64 gct6_handle;
7 
8 typedef struct __gct6_node {
9 	u8 type;
10 	u8 subtype;
11 	u16 size;
12 	u32 hd_extension;
13 	gct6_handle owner;
14 	gct6_handle active_user;
15 	gct_id id;
16 	u64 flags;
17 	u16 rev;
18 	u16 change_counter;
19 	u16 max_child;
20 	u16 reserved1;
21 	gct6_handle saved_owner;
22 	gct6_handle affinity;
23 	gct6_handle parent;
24 	gct6_handle next;
25 	gct6_handle prev;
26 	gct6_handle child;
27 	u64 fw_flags;
28 	u64 os_usage;
29 	u64 fru_id;
30 	u32 checksum;
31 	u32 magic;	/* 'GLXY' */
32 } gct6_node;
33 
34 typedef struct {
35 	u8 type;
36 	u8 subtype;
37 	void (*callout)(gct6_node *);
38 } gct6_search_struct;
39 
40 #define GCT_NODE_MAGIC	  0x59584c47	/* 'GLXY' */
41 
42 /*
43  * node types
44  */
45 #define GCT_TYPE_HOSE			0x0E
46 
47 /*
48  * node subtypes
49  */
50 #define GCT_SUBTYPE_IO_PORT_MODULE	0x2C
51 
52 #define GCT_NODE_PTR(off) ((gct6_node *)((char *)hwrpb + 		\
53 					 hwrpb->frut_offset + 		\
54 					 (gct6_handle)(off)))		\
55 
56 int gct6_find_nodes(gct6_node *, gct6_search_struct *);
57 
58 #endif /* __ALPHA_GCT_H */
59 
60