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MIPS: Emulate the new MIPS R6 BNEZC and JIALC instructions

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MIPS R6 uses the <R6 sdc2 opcode for the new BNEZC and JIALC instructions

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
This commit is contained in:
Markos Chandras 2015-01-08 11:55:20 +00:00
parent 69b9a2fd05
commit 28d6f93d20
3 changed files with 20 additions and 1 deletions
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10
arch/mips/kernel/branch.c
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@ -807,6 +807,16 @@ int __compute_return_epc_for_insn(struct pt_regs *regs,
/* Compact branch: BEQZC || JIC */
regs->cp0_epc += 8;
break;
case bnezcjialc_op:
if (!cpu_has_mips_r6) {
ret = -SIGILL;
break;
}
/* Compact branch: BNEZC || JIALC */
if (insn.i_format.rs)
regs->regs[31] = epc + 4;
regs->cp0_epc += 8;
break;
#endif
case cbcond0_op:
case cbcond1_op: