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696e409d MCC |
1 | /* Provides edac interface to mcelog events |
2 | * | |
3 | * This file may be distributed under the terms of the | |
4 | * GNU General Public License version 2. | |
5 | * | |
6 | * Copyright (c) 2009 by: | |
7 | * Mauro Carvalho Chehab <mchehab@redhat.com> | |
8 | * | |
9 | * Red Hat Inc. http://www.redhat.com | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | #include <linux/edac_mce.h> | |
14 | #include <asm/mce.h> | |
15 | ||
16 | int edac_mce_enabled; | |
17 | EXPORT_SYMBOL_GPL(edac_mce_enabled); | |
18 | ||
19 | ||
20 | /* | |
21 | * Extension interface | |
22 | */ | |
23 | ||
24 | static LIST_HEAD(edac_mce_list); | |
25 | static DEFINE_MUTEX(edac_mce_lock); | |
26 | ||
27 | int edac_mce_register(struct edac_mce *edac_mce) | |
28 | { | |
29 | mutex_lock(&edac_mce_lock); | |
30 | list_add_tail(&edac_mce->list, &edac_mce_list); | |
31 | mutex_unlock(&edac_mce_lock); | |
32 | return 0; | |
33 | } | |
34 | EXPORT_SYMBOL(edac_mce_register); | |
35 | ||
36 | void edac_mce_unregister(struct edac_mce *edac_mce) | |
37 | { | |
38 | mutex_lock(&edac_mce_lock); | |
39 | list_del(&edac_mce->list); | |
40 | mutex_unlock(&edac_mce_lock); | |
41 | } | |
42 | EXPORT_SYMBOL(edac_mce_unregister); | |
43 | ||
44 | ||
45 | ||
46 | int edac_mce_queue(struct mce *mce) | |
47 | { | |
48 | struct edac_mce *edac_mce; | |
49 | ||
50 | list_for_each_entry(edac_mce, &edac_mce_list, list) { | |
51 | if (edac_mce->check_error(edac_mce->priv, mce)) | |
52 | return 1; | |
53 | } | |
54 | ||
55 | /* Nobody queued the error */ | |
56 | return 0; | |
57 | } | |
58 | EXPORT_SYMBOL_GPL(edac_mce_queue); |