1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License.  See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle
7 */
8#ifndef _ASM_BRANCH_H
9#define _ASM_BRANCH_H
10
11#include <asm/ptrace.h>
12
13static inline int delay_slot(struct pt_regs *regs)
14{
15	return regs->cp0_cause & CAUSEF_BD;
16}
17
18static inline unsigned long exception_epc(struct pt_regs *regs)
19{
20	if (!delay_slot(regs))
21		return regs->cp0_epc;
22
23	return regs->cp0_epc + 4;
24}
25
26extern int __compute_return_epc(struct pt_regs *regs);
27
28static inline int compute_return_epc(struct pt_regs *regs)
29{
30	if (!delay_slot(regs)) {
31		regs->cp0_epc += 4;
32		return 0;
33	}
34
35	return __compute_return_epc(regs);
36}
37
38#endif /* _ASM_BRANCH_H */
39