diff options
Diffstat (limited to 'arch/alpha/kernel/gct.c')
-rw-r--r-- | arch/alpha/kernel/gct.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/alpha/kernel/gct.c b/arch/alpha/kernel/gct.c new file mode 100644 index 000000000000..8827687b9f89 --- /dev/null +++ b/arch/alpha/kernel/gct.c | |||
@@ -0,0 +1,48 @@ | |||
1 | /* | ||
2 | * linux/arch/alpha/kernel/gct.c | ||
3 | */ | ||
4 | |||
5 | #include <linux/config.h> | ||
6 | #include <linux/kernel.h> | ||
7 | #include <linux/types.h> | ||
8 | #include <linux/errno.h> | ||
9 | |||
10 | #include <asm/hwrpb.h> | ||
11 | #include <asm/gct.h> | ||
12 | |||
13 | int | ||
14 | gct6_find_nodes(gct6_node *node, gct6_search_struct *search) | ||
15 | { | ||
16 | gct6_search_struct *wanted; | ||
17 | int status = 0; | ||
18 | |||
19 | /* First check the magic number. */ | ||
20 | if (node->magic != GCT_NODE_MAGIC) { | ||
21 | printk(KERN_ERR "GCT Node MAGIC incorrect - GCT invalid\n"); | ||
22 | return -EINVAL; | ||
23 | } | ||
24 | |||
25 | /* Check against the search struct. */ | ||
26 | for (wanted = search; | ||
27 | wanted && (wanted->type | wanted->subtype); | ||
28 | wanted++) { | ||
29 | if (node->type != wanted->type) | ||
30 | continue; | ||
31 | if (node->subtype != wanted->subtype) | ||
32 | continue; | ||
33 | |||
34 | /* Found it -- call out. */ | ||
35 | if (wanted->callout) | ||
36 | wanted->callout(node); | ||
37 | } | ||
38 | |||
39 | /* Now walk the tree, siblings first. */ | ||
40 | if (node->next) | ||
41 | status |= gct6_find_nodes(GCT_NODE_PTR(node->next), search); | ||
42 | |||
43 | /* Then the children. */ | ||
44 | if (node->child) | ||
45 | status |= gct6_find_nodes(GCT_NODE_PTR(node->child), search); | ||
46 | |||
47 | return status; | ||
48 | } | ||