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
6 * Copyright (C) 1996, 1997, 1998, 2001 by Ralf Baechle
11 #include <asm/ptrace.h>
14 extern int __isa_exception_epc(struct pt_regs *regs);
15 extern int __compute_return_epc(struct pt_regs *regs);
16 extern int __compute_return_epc_for_insn(struct pt_regs *regs,
17 union mips_instruction insn);
18 extern int __microMIPS_compute_return_epc(struct pt_regs *regs);
21 static inline int delay_slot(struct pt_regs *regs)
23 return regs->cp0_cause & CAUSEF_BD;
26 static inline unsigned long exception_epc(struct pt_regs *regs)
28 if (likely(!delay_slot(regs)))
31 if (get_isa16_mode(regs->cp0_epc))
32 return __isa_exception_epc(regs);
34 return regs->cp0_epc + 4;
37 #define BRANCH_LIKELY_TAKEN 0x0001
39 static inline int compute_return_epc(struct pt_regs *regs)
41 if (get_isa16_mode(regs->cp0_epc)) {
43 return __microMIPS_compute_return_epc(regs);
47 if (!delay_slot(regs)) {
52 return __compute_return_epc(regs);
55 #endif /* _ASM_BRANCH_H */