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| author |   Markos Chandras <markos.chandras@imgtec.com> | 2014-11-26 14:08:52 +0000 |
|---|---|---|
| committer | Markos Chandras <markos.chandras@imgtec.com> | 2015-02-17 15:37:34 +0000 |
| commit | c893ce38b265d5787d03850b36221f595b224538 (patch) | |
| tree | 9ebc726517a4eb3aee5c3a07f0f531f0704fc97a /arch/mips/math-emu | |
| parent | MIPS: Emulate the new MIPS R6 branch compact (BC) instruction (diff) | |
| download | linux-dev-c893ce38b265d5787d03850b36221f595b224538.tar.xz linux-dev-c893ce38b265d5787d03850b36221f595b224538.zip | |
MIPS: Emulate the new MIPS R6 BOVC, BEQC and BEQZALC instructions
MIPS R6 uses the <R6 ADDI opcode for the new BOVC, BEQC and
BEQZALC instructions.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Diffstat (limited to 'arch/mips/math-emu')
| -rw-r--r-- | arch/mips/math-emu/cp1emu.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index 7f373a2858b5..c115d969664b 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c @@ -623,6 +623,15 @@ static int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, dec_insn.pc_inc + dec_insn.next_pc_inc; return 1; + case cbcond0_op: + if (!cpu_has_mips_r6) + break; + if (insn.i_format.rt && !insn.i_format.rs) + regs->regs[31] = regs->cp0_epc + 4; + *contpc = regs->cp0_epc + dec_insn.pc_inc + + dec_insn.next_pc_inc; + + return 1; #ifdef CONFIG_CPU_CAVIUM_OCTEON case lwc2_op: /* This is bbit0 on Octeon */ if ((regs->regs[insn.i_format.rs] & (1ull<<insn.i_format.rt)) == 0) |