diff options
Diffstat (limited to 'arch/s390/oprofile/hwsampler.c')
| -rw-r--r-- | arch/s390/oprofile/hwsampler.c | 41 |
1 files changed, 13 insertions, 28 deletions
diff --git a/arch/s390/oprofile/hwsampler.c b/arch/s390/oprofile/hwsampler.c index 3d48f4db246d..053caa0fd276 100644 --- a/arch/s390/oprofile/hwsampler.c +++ b/arch/s390/oprofile/hwsampler.c @@ -5,6 +5,7 @@ * Author: Heinz Graalfs <graalfs@de.ibm.com> */ +#include <linux/kernel_stat.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/smp.h> @@ -517,12 +518,8 @@ stop_exit: static int check_hardware_prerequisites(void) { - unsigned long long facility_bits[2]; - - memcpy(facility_bits, S390_lowcore.stfle_fac_list, 32); - if (!(facility_bits[1] & (1ULL << 59))) + if (!test_facility(68)) return -EOPNOTSUPP; - return 0; } /* @@ -678,17 +675,11 @@ int hwsampler_activate(unsigned int cpu) static void hws_ext_handler(unsigned int ext_int_code, unsigned int param32, unsigned long param64) { - int cpu; struct hws_cpu_buffer *cb; - cpu = smp_processor_id(); - cb = &per_cpu(sampler_cpu_buffer, cpu); - - atomic_xchg( - &cb->ext_params, - atomic_read(&cb->ext_params) - | S390_lowcore.ext_params); - + kstat_cpu(smp_processor_id()).irqs[EXTINT_CPM]++; + cb = &__get_cpu_var(sampler_cpu_buffer); + atomic_xchg(&cb->ext_params, atomic_read(&cb->ext_params) | param32); if (hws_wq) queue_work(hws_wq, &cb->worker); } @@ -768,7 +759,7 @@ static int worker_check_error(unsigned int cpu, int ext_params) if (!sdbt || !*sdbt) return -EINVAL; - if (ext_params & EI_IEA) + if (ext_params & EI_PRA) cb->req_alert++; if (ext_params & EI_LSDA) @@ -1013,7 +1004,7 @@ int hwsampler_deallocate() if (hws_state != HWS_STOPPED) goto deallocate_exit; - smp_ctl_clear_bit(0, 5); /* set bit 58 CR0 off */ + ctl_clear_bit(0, 5); /* set bit 58 CR0 off */ deallocate_sdbt(); hws_state = HWS_DEALLOCATED; @@ -1025,20 +1016,14 @@ deallocate_exit: return rc; } -long hwsampler_query_min_interval(void) +unsigned long hwsampler_query_min_interval(void) { - if (min_sampler_rate) - return min_sampler_rate; - else - return -EINVAL; + return min_sampler_rate; } -long hwsampler_query_max_interval(void) +unsigned long hwsampler_query_max_interval(void) { - if (max_sampler_rate) - return max_sampler_rate; - else - return -EINVAL; + return max_sampler_rate; } unsigned long hwsampler_get_sample_overflow_count(unsigned int cpu) @@ -1133,7 +1118,7 @@ int hwsampler_shutdown() mutex_lock(&hws_sem); if (hws_state == HWS_STOPPED) { - smp_ctl_clear_bit(0, 5); /* set bit 58 CR0 off */ + ctl_clear_bit(0, 5); /* set bit 58 CR0 off */ deallocate_sdbt(); } if (hws_wq) { @@ -1208,7 +1193,7 @@ start_all_exit: hws_oom = 1; hws_flush_all = 0; /* now let them in, 1407 CPUMF external interrupts */ - smp_ctl_set_bit(0, 5); /* set CR0 bit 58 */ + ctl_set_bit(0, 5); /* set CR0 bit 58 */ return 0; } |