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 
edac_mce_register(struct edac_mce * edac_mce)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 
edac_mce_unregister(struct edac_mce * edac_mce)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 
edac_mce_parse(struct mce * mce)44 int edac_mce_parse(struct mce *mce)
45 {
46 	struct edac_mce *edac_mce;
47 
48 	list_for_each_entry(edac_mce, &edac_mce_list, list) {
49 		if (edac_mce->check_error(edac_mce->priv, mce))
50 			return 1;
51 	}
52 
53 	/* Nobody queued the error */
54 	return 0;
55 }
56 EXPORT_SYMBOL_GPL(edac_mce_parse);
57 
58 MODULE_LICENSE("GPL");
59 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>");
60 MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com)");
61 MODULE_DESCRIPTION("EDAC Driver for mcelog captured errors");
62