diff options
Diffstat (limited to 'arch/s390/kernel/smp.c')
| -rw-r--r-- | arch/s390/kernel/smp.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 10dbb12eb14d..85700bd85f98 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -61,6 +61,7 @@ enum { ec_schedule = 0, ec_call_function_single, ec_stop_cpu, + ec_mcck_pending, }; enum { @@ -145,7 +146,7 @@ static int pcpu_sigp_retry(struct pcpu *pcpu, u8 order, u32 parm) static inline int pcpu_stopped(struct pcpu *pcpu) { - u32 uninitialized_var(status); + u32 status; if (__pcpu_sigp(pcpu->address, SIGP_SENSE, 0, &status) != SIGP_CC_STATUS_STORED) @@ -403,6 +404,11 @@ int smp_find_processor_id(u16 address) return -1; } +void schedule_mcck_handler(void) +{ + pcpu_ec_call(pcpu_devices + smp_processor_id(), ec_mcck_pending); +} + bool notrace arch_vcpu_is_preempted(int cpu) { if (test_cpu_flag_of(CIF_ENABLED_WAIT, cpu)) @@ -497,6 +503,8 @@ static void smp_handle_ext_call(void) scheduler_ipi(); if (test_bit(ec_call_function_single, &bits)) generic_smp_call_function_single_interrupt(); + if (test_bit(ec_mcck_pending, &bits)) + s390_handle_mcck(); } static void do_ext_call_interrupt(struct ext_code ext_code, @@ -1004,10 +1012,6 @@ void __init smp_prepare_boot_cpu(void) smp_cpu_set_polarization(0, POLARIZATION_UNKNOWN); } -void __init smp_cpus_done(unsigned int max_cpus) -{ -} - void __init smp_setup_processor_id(void) { pcpu_devices[0].address = stap(); @@ -1137,6 +1141,7 @@ static int smp_cpu_online(unsigned int cpu) return sysfs_create_group(&s->kobj, &cpu_online_attr_group); } + static int smp_cpu_pre_down(unsigned int cpu) { struct device *s = &per_cpu(cpu_device, cpu)->dev; |