diff --git a/arch/powerpc/kernel/perf_counter.c b/arch/powerpc/kernel/perf_counter.c index bd76d0fa2c3575ad75b0839b765eda106991c5e7..d9bbe5efc64924c640c91f9b10b351339057a659 100644 --- a/arch/powerpc/kernel/perf_counter.c +++ b/arch/powerpc/kernel/perf_counter.c @@ -256,7 +256,7 @@ static int check_excludes(struct perf_counter **ctrs, int n_prev, int n_new) return 0; } -static void power_perf_read(struct perf_counter *counter) +static void power_pmu_read(struct perf_counter *counter) { long val, delta, prev; @@ -405,7 +405,7 @@ void hw_perf_restore(u64 disable) for (i = 0; i < cpuhw->n_counters; ++i) { counter = cpuhw->counter[i]; if (counter->hw.idx && counter->hw.idx != hwc_index[i] + 1) { - power_perf_read(counter); + power_pmu_read(counter); write_pmc(counter->hw.idx, 0); counter->hw.idx = 0; } @@ -477,7 +477,7 @@ static void counter_sched_in(struct perf_counter *counter, int cpu) counter->oncpu = cpu; counter->tstamp_running += counter->ctx->time - counter->tstamp_stopped; if (is_software_counter(counter)) - counter->hw_ops->enable(counter); + counter->pmu->enable(counter); } /* @@ -533,7 +533,7 @@ int hw_perf_group_sched_in(struct perf_counter *group_leader, * re-enable the PMU in order to get hw_perf_restore to do the * actual work of reconfiguring the PMU. */ -static int power_perf_enable(struct perf_counter *counter) +static int power_pmu_enable(struct perf_counter *counter) { struct cpu_hw_counters *cpuhw; unsigned long flags; @@ -573,7 +573,7 @@ static int power_perf_enable(struct perf_counter *counter) /* * Remove a counter from the PMU. */ -static void power_perf_disable(struct perf_counter *counter) +static void power_pmu_disable(struct perf_counter *counter) { struct cpu_hw_counters *cpuhw; long i; @@ -583,7 +583,7 @@ static void power_perf_disable(struct perf_counter *counter) local_irq_save(flags); pmudis = hw_perf_save_disable(); - power_perf_read(counter); + power_pmu_read(counter); cpuhw = &__get_cpu_var(cpu_hw_counters); for (i = 0; i < cpuhw->n_counters; ++i) { @@ -607,10 +607,10 @@ static void power_perf_disable(struct perf_counter *counter) local_irq_restore(flags); } -struct hw_perf_counter_ops power_perf_ops = { - .enable = power_perf_enable, - .disable = power_perf_disable, - .read = power_perf_read +struct pmu power_pmu = { + .enable = power_pmu_enable, + .disable = power_pmu_disable, + .read = power_pmu_read, }; /* Number of perf_counters counting hardware events */ @@ -631,8 +631,7 @@ static void hw_perf_counter_destroy(struct perf_counter *counter) } } -const struct hw_perf_counter_ops * -hw_perf_counter_init(struct perf_counter *counter) +const struct pmu *hw_perf_counter_init(struct perf_counter *counter) { unsigned long ev; struct perf_counter *ctrs[MAX_HWCOUNTERS]; @@ -705,7 +704,7 @@ hw_perf_counter_init(struct perf_counter *counter) if (err) return ERR_PTR(err); - return &power_perf_ops; + return &power_pmu; } /* diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c index ad663d5ad2d9117e0ea27aa7eacd361f013bd797..95de980c74a02a195556c910e295bf44b0aa6569 100644 --- a/arch/x86/kernel/cpu/perf_counter.c +++ b/arch/x86/kernel/cpu/perf_counter.c @@ -515,8 +515,8 @@ __pmc_fixed_disable(struct perf_counter *counter, } static inline void -__pmc_generic_disable(struct perf_counter *counter, - struct hw_perf_counter *hwc, unsigned int idx) +__x86_pmu_disable(struct perf_counter *counter, + struct hw_perf_counter *hwc, unsigned int idx) { if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) __pmc_fixed_disable(counter, hwc, idx); @@ -591,8 +591,8 @@ __pmc_fixed_enable(struct perf_counter *counter, } static void -__pmc_generic_enable(struct perf_counter *counter, - struct hw_perf_counter *hwc, int idx) +__x86_pmu_enable(struct perf_counter *counter, + struct hw_perf_counter *hwc, int idx) { if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) __pmc_fixed_enable(counter, hwc, idx); @@ -626,7 +626,7 @@ fixed_mode_idx(struct perf_counter *counter, struct hw_perf_counter *hwc) /* * Find a PMC slot for the freshly enabled / scheduled in counter: */ -static int pmc_generic_enable(struct perf_counter *counter) +static int x86_pmu_enable(struct perf_counter *counter) { struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters); struct hw_perf_counter *hwc = &counter->hw; @@ -667,7 +667,7 @@ static int pmc_generic_enable(struct perf_counter *counter) perf_counters_lapic_init(hwc->nmi); - __pmc_generic_disable(counter, hwc, idx); + __x86_pmu_disable(counter, hwc, idx); cpuc->counters[idx] = counter; /* @@ -676,7 +676,7 @@ static int pmc_generic_enable(struct perf_counter *counter) barrier(); __hw_perf_counter_set_period(counter, hwc, idx); - __pmc_generic_enable(counter, hwc, idx); + __x86_pmu_enable(counter, hwc, idx); return 0; } @@ -731,13 +731,13 @@ void perf_counter_print_debug(void) local_irq_enable(); } -static void pmc_generic_disable(struct perf_counter *counter) +static void x86_pmu_disable(struct perf_counter *counter) { struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters); struct hw_perf_counter *hwc = &counter->hw; unsigned int idx = hwc->idx; - __pmc_generic_disable(counter, hwc, idx); + __x86_pmu_disable(counter, hwc, idx); clear_bit(idx, cpuc->used); cpuc->counters[idx] = NULL; @@ -767,7 +767,7 @@ static void perf_save_and_restart(struct perf_counter *counter) __hw_perf_counter_set_period(counter, hwc, idx); if (counter->state == PERF_COUNTER_STATE_ACTIVE) - __pmc_generic_enable(counter, hwc, idx); + __x86_pmu_enable(counter, hwc, idx); } /* @@ -805,7 +805,7 @@ static int __smp_perf_counter_interrupt(struct pt_regs *regs, int nmi) perf_save_and_restart(counter); if (perf_counter_overflow(counter, nmi, regs, 0)) - __pmc_generic_disable(counter, &counter->hw, bit); + __x86_pmu_disable(counter, &counter->hw, bit); } hw_perf_ack_status(ack); @@ -1034,19 +1034,18 @@ void __init init_hw_perf_counters(void) register_die_notifier(&perf_counter_nmi_notifier); } -static void pmc_generic_read(struct perf_counter *counter) +static void x86_pmu_read(struct perf_counter *counter) { x86_perf_counter_update(counter, &counter->hw, counter->hw.idx); } -static const struct hw_perf_counter_ops x86_perf_counter_ops = { - .enable = pmc_generic_enable, - .disable = pmc_generic_disable, - .read = pmc_generic_read, +static const struct pmu pmu = { + .enable = x86_pmu_enable, + .disable = x86_pmu_disable, + .read = x86_pmu_read, }; -const struct hw_perf_counter_ops * -hw_perf_counter_init(struct perf_counter *counter) +const struct pmu *hw_perf_counter_init(struct perf_counter *counter) { int err; @@ -1054,7 +1053,7 @@ hw_perf_counter_init(struct perf_counter *counter) if (err) return ERR_PTR(err); - return &x86_perf_counter_ops; + return &pmu; } /* diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h index be10b3ffe320885c3e4093872ef684ec647073c0..c3db52dc876adce404ba1965e128c82036d42200 100644 --- a/include/linux/perf_counter.h +++ b/include/linux/perf_counter.h @@ -334,9 +334,9 @@ struct hw_perf_counter { struct perf_counter; /** - * struct hw_perf_counter_ops - performance counter hw ops + * struct pmu - generic performance monitoring unit */ -struct hw_perf_counter_ops { +struct pmu { int (*enable) (struct perf_counter *counter); void (*disable) (struct perf_counter *counter); void (*read) (struct perf_counter *counter); @@ -381,7 +381,7 @@ struct perf_counter { struct list_head sibling_list; int nr_siblings; struct perf_counter *group_leader; - const struct hw_perf_counter_ops *hw_ops; + const struct pmu *pmu; enum perf_counter_active_state state; enum perf_counter_active_state prev_state; @@ -519,8 +519,7 @@ struct perf_cpu_context { */ extern int perf_max_counters; -extern const struct hw_perf_counter_ops * -hw_perf_counter_init(struct perf_counter *counter); +extern const struct pmu *hw_perf_counter_init(struct perf_counter *counter); extern void perf_counter_task_sched_in(struct task_struct *task, int cpu); extern void perf_counter_task_sched_out(struct task_struct *task, int cpu); diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 09396098dd0df7928bdbb964111e8549c5a32a6a..582108addefab7c5d66ac746310aedc2245186ea 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -52,8 +52,7 @@ static DEFINE_MUTEX(perf_resource_mutex); /* * Architecture provided APIs - weak aliases: */ -extern __weak const struct hw_perf_counter_ops * -hw_perf_counter_init(struct perf_counter *counter) +extern __weak const struct pmu *hw_perf_counter_init(struct perf_counter *counter) { return NULL; } @@ -124,7 +123,7 @@ counter_sched_out(struct perf_counter *counter, counter->state = PERF_COUNTER_STATE_INACTIVE; counter->tstamp_stopped = ctx->time; - counter->hw_ops->disable(counter); + counter->pmu->disable(counter); counter->oncpu = -1; if (!is_software_counter(counter)) @@ -417,7 +416,7 @@ counter_sched_in(struct perf_counter *counter, */ smp_wmb(); - if (counter->hw_ops->enable(counter)) { + if (counter->pmu->enable(counter)) { counter->state = PERF_COUNTER_STATE_INACTIVE; counter->oncpu = -1; return -EAGAIN; @@ -1096,7 +1095,7 @@ static void __read(void *info) local_irq_save(flags); if (ctx->is_active) update_context_time(ctx); - counter->hw_ops->read(counter); + counter->pmu->read(counter); update_counter_times(counter); local_irq_restore(flags); } @@ -1922,7 +1921,7 @@ static void perf_counter_output(struct perf_counter *counter, leader = counter->group_leader; list_for_each_entry(sub, &leader->sibling_list, list_entry) { if (sub != counter) - sub->hw_ops->read(sub); + sub->pmu->read(sub); group_entry.event = sub->hw_event.config; group_entry.counter = atomic64_read(&sub->count); @@ -2264,7 +2263,7 @@ static enum hrtimer_restart perf_swcounter_hrtimer(struct hrtimer *hrtimer) struct pt_regs *regs; counter = container_of(hrtimer, struct perf_counter, hw.hrtimer); - counter->hw_ops->read(counter); + counter->pmu->read(counter); regs = get_irq_regs(); /* @@ -2410,7 +2409,7 @@ static void perf_swcounter_disable(struct perf_counter *counter) perf_swcounter_update(counter); } -static const struct hw_perf_counter_ops perf_ops_generic = { +static const struct pmu perf_ops_generic = { .enable = perf_swcounter_enable, .disable = perf_swcounter_disable, .read = perf_swcounter_read, @@ -2460,7 +2459,7 @@ static void cpu_clock_perf_counter_read(struct perf_counter *counter) cpu_clock_perf_counter_update(counter); } -static const struct hw_perf_counter_ops perf_ops_cpu_clock = { +static const struct pmu perf_ops_cpu_clock = { .enable = cpu_clock_perf_counter_enable, .disable = cpu_clock_perf_counter_disable, .read = cpu_clock_perf_counter_read, @@ -2522,7 +2521,7 @@ static void task_clock_perf_counter_read(struct perf_counter *counter) task_clock_perf_counter_update(counter, time); } -static const struct hw_perf_counter_ops perf_ops_task_clock = { +static const struct pmu perf_ops_task_clock = { .enable = task_clock_perf_counter_enable, .disable = task_clock_perf_counter_disable, .read = task_clock_perf_counter_read, @@ -2574,7 +2573,7 @@ static void cpu_migrations_perf_counter_disable(struct perf_counter *counter) cpu_migrations_perf_counter_update(counter); } -static const struct hw_perf_counter_ops perf_ops_cpu_migrations = { +static const struct pmu perf_ops_cpu_migrations = { .enable = cpu_migrations_perf_counter_enable, .disable = cpu_migrations_perf_counter_disable, .read = cpu_migrations_perf_counter_read, @@ -2600,8 +2599,7 @@ static void tp_perf_counter_destroy(struct perf_counter *counter) ftrace_profile_disable(perf_event_id(&counter->hw_event)); } -static const struct hw_perf_counter_ops * -tp_perf_counter_init(struct perf_counter *counter) +static const struct pmu *tp_perf_counter_init(struct perf_counter *counter) { int event_id = perf_event_id(&counter->hw_event); int ret; @@ -2616,18 +2614,16 @@ tp_perf_counter_init(struct perf_counter *counter) return &perf_ops_generic; } #else -static const struct hw_perf_counter_ops * -tp_perf_counter_init(struct perf_counter *counter) +static const struct pmu *tp_perf_counter_init(struct perf_counter *counter) { return NULL; } #endif -static const struct hw_perf_counter_ops * -sw_perf_counter_init(struct perf_counter *counter) +static const struct pmu *sw_perf_counter_init(struct perf_counter *counter) { struct perf_counter_hw_event *hw_event = &counter->hw_event; - const struct hw_perf_counter_ops *hw_ops = NULL; + const struct pmu *pmu = NULL; struct hw_perf_counter *hwc = &counter->hw; /* @@ -2639,7 +2635,7 @@ sw_perf_counter_init(struct perf_counter *counter) */ switch (perf_event_id(&counter->hw_event)) { case PERF_COUNT_CPU_CLOCK: - hw_ops = &perf_ops_cpu_clock; + pmu = &perf_ops_cpu_clock; if (hw_event->irq_period && hw_event->irq_period < 10000) hw_event->irq_period = 10000; @@ -2650,9 +2646,9 @@ sw_perf_counter_init(struct perf_counter *counter) * use the cpu_clock counter instead. */ if (counter->ctx->task) - hw_ops = &perf_ops_task_clock; + pmu = &perf_ops_task_clock; else - hw_ops = &perf_ops_cpu_clock; + pmu = &perf_ops_cpu_clock; if (hw_event->irq_period && hw_event->irq_period < 10000) hw_event->irq_period = 10000; @@ -2661,18 +2657,18 @@ sw_perf_counter_init(struct perf_counter *counter) case PERF_COUNT_PAGE_FAULTS_MIN: case PERF_COUNT_PAGE_FAULTS_MAJ: case PERF_COUNT_CONTEXT_SWITCHES: - hw_ops = &perf_ops_generic; + pmu = &perf_ops_generic; break; case PERF_COUNT_CPU_MIGRATIONS: if (!counter->hw_event.exclude_kernel) - hw_ops = &perf_ops_cpu_migrations; + pmu = &perf_ops_cpu_migrations; break; } - if (hw_ops) + if (pmu) hwc->irq_period = hw_event->irq_period; - return hw_ops; + return pmu; } /* @@ -2685,7 +2681,7 @@ perf_counter_alloc(struct perf_counter_hw_event *hw_event, struct perf_counter *group_leader, gfp_t gfpflags) { - const struct hw_perf_counter_ops *hw_ops; + const struct pmu *pmu; struct perf_counter *counter; long err; @@ -2713,46 +2709,46 @@ perf_counter_alloc(struct perf_counter_hw_event *hw_event, counter->cpu = cpu; counter->hw_event = *hw_event; counter->group_leader = group_leader; - counter->hw_ops = NULL; + counter->pmu = NULL; counter->ctx = ctx; counter->state = PERF_COUNTER_STATE_INACTIVE; if (hw_event->disabled) counter->state = PERF_COUNTER_STATE_OFF; - hw_ops = NULL; + pmu = NULL; if (perf_event_raw(hw_event)) { - hw_ops = hw_perf_counter_init(counter); + pmu = hw_perf_counter_init(counter); goto done; } switch (perf_event_type(hw_event)) { case PERF_TYPE_HARDWARE: - hw_ops = hw_perf_counter_init(counter); + pmu = hw_perf_counter_init(counter); break; case PERF_TYPE_SOFTWARE: - hw_ops = sw_perf_counter_init(counter); + pmu = sw_perf_counter_init(counter); break; case PERF_TYPE_TRACEPOINT: - hw_ops = tp_perf_counter_init(counter); + pmu = tp_perf_counter_init(counter); break; } done: err = 0; - if (!hw_ops) + if (!pmu) err = -EINVAL; - else if (IS_ERR(hw_ops)) - err = PTR_ERR(hw_ops); + else if (IS_ERR(pmu)) + err = PTR_ERR(pmu); if (err) { kfree(counter); return ERR_PTR(err); } - counter->hw_ops = hw_ops; + counter->pmu = pmu; if (counter->hw_event.mmap) atomic_inc(&nr_mmap_tracking);