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1#ifndef _S390_KDEBUG_H
2#define _S390_KDEBUG_H
3
4/*
5 * Feb 2006 Ported to s390 <grundym@us.ibm.com>
6 */
7#include <linux/notifier.h>
8
9struct pt_regs;
10
11struct die_args {
12 struct pt_regs *regs;
13 const char *str;
14 long err;
15 int trapnr;
16 int signr;
17};
18
19/* Note - you should never unregister because that can race with NMIs.
20 * If you really want to do it first unregister - then synchronize_sched
21 * - then free.
22 */
23extern int register_die_notifier(struct notifier_block *);
24extern int unregister_die_notifier(struct notifier_block *);
25extern int register_page_fault_notifier(struct notifier_block *);
26extern int unregister_page_fault_notifier(struct notifier_block *);
27extern struct atomic_notifier_head s390die_chain;
28
29
30enum die_val {
31 DIE_OOPS = 1,
32 DIE_BPT,
33 DIE_SSTEP,
34 DIE_PANIC,
35 DIE_NMI,
36 DIE_DIE,
37 DIE_NMIWATCHDOG,
38 DIE_KERNELDEBUG,
39 DIE_TRAP,
40 DIE_GPF,
41 DIE_CALL,
42 DIE_NMI_IPI,
43 DIE_PAGE_FAULT,
44};
45
46static inline int notify_die(enum die_val val, const char *str,
47 struct pt_regs *regs, long err, int trap, int sig)
48{
49 struct die_args args = {
50 .regs = regs,
51 .str = str,
52 .err = err,
53 .trapnr = trap,
54 .signr = sig
55 };
56 return atomic_notifier_call_chain(&s390die_chain, val, &args);
57}
58
59#endif