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perf: Register PMU implementations

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Simple registration interface for struct pmu, this provides the
infrastructure for removing all the weak functions.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: paulus <paulus@samba.org>
Cc: stephane eranian <eranian@googlemail.com>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Lin Ming <ming.m.lin@intel.com>
Cc: Yanmin <yanmin_zhang@linux.intel.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
Cc: David Miller <davem@davemloft.net>
Cc: Michael Cree <mcree@orcon.net.nz>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2010-06-11 13:35:08 +02:00 • committed by Ingo Molnar
parent 51b0fe3954
commit b0a873ebbf
10 changed files with 506 additions and 430 deletions
Download patch file Download diff file Expand all files Collapse all files

29
arch/sparc/kernel/perf_event.c
View file

@ -1025,7 +1025,7 @@ out:
return ret;
}
static int __hw_perf_event_init(struct perf_event *event)
static int sparc_pmu_event_init(struct perf_event *event)
{
struct perf_event_attr *attr = &event->attr;
struct perf_event *evts[MAX_HWEVENTS];
@ -1038,17 +1038,27 @@ static int __hw_perf_event_init(struct perf_event *event)
if (atomic_read(&nmi_active) < 0)
return -ENODEV;
if (attr->type == PERF_TYPE_HARDWARE) {
switch (attr->type) {
case PERF_TYPE_HARDWARE:
if (attr->config >= sparc_pmu->max_events)
return -EINVAL;
pmap = sparc_pmu->event_map(attr->config);
} else if (attr->type == PERF_TYPE_HW_CACHE) {
break;
case PERF_TYPE_HW_CACHE:
pmap = sparc_map_cache_event(attr->config);
if (IS_ERR(pmap))
return PTR_ERR(pmap);
} else
break;
case PERF_TYPE_RAW:
return -EOPNOTSUPP;
default:
return -ENOENT;
}
/* We save the enable bits in the config_base. */
hwc->config_base = sparc_pmu->irq_bit;
if (!attr->exclude_user)
@ -1143,6 +1153,7 @@ static int sparc_pmu_commit_txn(struct pmu *pmu)
}
static struct pmu pmu = {
.event_init = sparc_pmu_event_init,
.enable = sparc_pmu_enable,
.disable = sparc_pmu_disable,
.read = sparc_pmu_read,
@ -1152,15 +1163,6 @@ static struct pmu pmu = {
.commit_txn = sparc_pmu_commit_txn,
};
struct pmu *hw_perf_event_init(struct perf_event *event)
{
int err = __hw_perf_event_init(event);
if (err)
return ERR_PTR(err);
return &pmu;
}
void perf_event_print_debug(void)
{
unsigned long flags;
@ -1280,6 +1282,7 @@ void __init init_hw_perf_events(void)
/* All sparc64 PMUs currently have 2 events. */
perf_max_events = 2;
perf_pmu_register(&pmu);
register_die_notifier(&perf_event_nmi_notifier);
}