diff options
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 0d30433db54b..cd252fd684b7 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -438,6 +438,15 @@ static void decode_configs(struct cpuinfo_mips *c) mips_probe_watch_registers(c); + if (cpu_has_rixi) { + /* Enable the RIXI exceptions */ + write_c0_pagegrain(read_c0_pagegrain() | PG_IEC); + back_to_back_c0_hazard(); + /* Verify the IEC bit is set */ + if (read_c0_pagegrain() & PG_IEC) + c->options |= MIPS_CPU_RIXIEX; + } + #ifndef CONFIG_MIPS_CPS if (cpu_has_mips_r2) { c->core = get_ebase_cpunum(); |