diff options
Diffstat (limited to 'include/asm-sparc64/mdesc.h')
-rw-r--r-- | include/asm-sparc64/mdesc.h | 79 |
1 files changed, 1 insertions, 78 deletions
diff --git a/include/asm-sparc64/mdesc.h b/include/asm-sparc64/mdesc.h index 1acc7272e537..165a19347286 100644 --- a/include/asm-sparc64/mdesc.h +++ b/include/asm-sparc64/mdesc.h | |||
@@ -1,78 +1 @@ | |||
1 | #ifndef _SPARC64_MDESC_H | #include <asm-sparc/mdesc.h> | |
2 | #define _SPARC64_MDESC_H | ||
3 | |||
4 | #include <linux/types.h> | ||
5 | #include <linux/cpumask.h> | ||
6 | #include <asm/prom.h> | ||
7 | |||
8 | struct mdesc_handle; | ||
9 | |||
10 | /* Machine description operations are to be surrounded by grab and | ||
11 | * release calls. The mdesc_handle returned from the grab is | ||
12 | * the first argument to all of the operational calls that work | ||
13 | * on mdescs. | ||
14 | */ | ||
15 | extern struct mdesc_handle *mdesc_grab(void); | ||
16 | extern void mdesc_release(struct mdesc_handle *); | ||
17 | |||
18 | #define MDESC_NODE_NULL (~(u64)0) | ||
19 | |||
20 | extern u64 mdesc_node_by_name(struct mdesc_handle *handle, | ||
21 | u64 from_node, const char *name); | ||
22 | #define mdesc_for_each_node_by_name(__hdl, __node, __name) \ | ||
23 | for (__node = mdesc_node_by_name(__hdl, MDESC_NODE_NULL, __name); \ | ||
24 | (__node) != MDESC_NODE_NULL; \ | ||
25 | __node = mdesc_node_by_name(__hdl, __node, __name)) | ||
26 | |||
27 | /* Access to property values returned from mdesc_get_property() are | ||
28 | * only valid inside of a mdesc_grab()/mdesc_release() sequence. | ||
29 | * Once mdesc_release() is called, the memory backed up by these | ||
30 | * pointers may reference freed up memory. | ||
31 | * | ||
32 | * Therefore callers must make copies of any property values | ||
33 | * they need. | ||
34 | * | ||
35 | * These same rules apply to mdesc_node_name(). | ||
36 | */ | ||
37 | extern const void *mdesc_get_property(struct mdesc_handle *handle, | ||
38 | u64 node, const char *name, int *lenp); | ||
39 | extern const char *mdesc_node_name(struct mdesc_handle *hp, u64 node); | ||
40 | |||
41 | /* MD arc iteration, the standard sequence is: | ||
42 | * | ||
43 | * unsigned long arc; | ||
44 | * mdesc_for_each_arc(arc, handle, node, MDESC_ARC_TYPE_{FWD,BACK}) { | ||
45 | * unsigned long target = mdesc_arc_target(handle, arc); | ||
46 | * ... | ||
47 | * } | ||
48 | */ | ||
49 | |||
50 | #define MDESC_ARC_TYPE_FWD "fwd" | ||
51 | #define MDESC_ARC_TYPE_BACK "back" | ||
52 | |||
53 | extern u64 mdesc_next_arc(struct mdesc_handle *handle, u64 from, | ||
54 | const char *arc_type); | ||
55 | #define mdesc_for_each_arc(__arc, __hdl, __node, __type) \ | ||
56 | for (__arc = mdesc_next_arc(__hdl, __node, __type); \ | ||
57 | (__arc) != MDESC_NODE_NULL; \ | ||
58 | __arc = mdesc_next_arc(__hdl, __arc, __type)) | ||
59 | |||
60 | extern u64 mdesc_arc_target(struct mdesc_handle *hp, u64 arc); | ||
61 | |||
62 | extern void mdesc_update(void); | ||
63 | |||
64 | struct mdesc_notifier_client { | ||
65 | void (*add)(struct mdesc_handle *handle, u64 node); | ||
66 | void (*remove)(struct mdesc_handle *handle, u64 node); | ||
67 | |||
68 | const char *node_name; | ||
69 | struct mdesc_notifier_client *next; | ||
70 | }; | ||
71 | |||
72 | extern void mdesc_register_notifier(struct mdesc_notifier_client *client); | ||
73 | |||
74 | extern void mdesc_fill_in_cpu_data(cpumask_t mask); | ||
75 | |||
76 | extern void sun4v_mdesc_init(void); | ||
77 | |||
78 | #endif | ||