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-rw-r--r--arch/mips/include/asm/branch.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/mips/include/asm/branch.h b/arch/mips/include/asm/branch.h
new file mode 100644
index 000000000000..37c6857c8d4a
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+++ b/arch/mips/include/asm/branch.h
@@ -0,0 +1,38 @@
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 */