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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

39
arch/sh/kernel/perf_event.c
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@@ -257,26 +257,38 @@ static void sh_pmu_read(struct perf_event *event)
sh_perf_event_update(event, &event->hw, event->hw.idx);
}
static int sh_pmu_event_init(struct perf_event *event)
{
int err;
switch (event->attr.type) {
case PERF_TYPE_RAW:
case PERF_TYPE_HW_CACHE:
case PERF_TYPE_HARDWARE:
err = __hw_perf_event_init(event);
break;
default:
return -ENOENT;
}
if (unlikely(err)) {
if (event->destroy)
event->destroy(event);
}
return err;
}
static struct pmu pmu = {
.event_init = sh_pmu_event_init,
.enable = sh_pmu_enable,
.disable = sh_pmu_disable,
.read = sh_pmu_read,
};
struct pmu *hw_perf_event_init(struct perf_event *event)
{
int err = __hw_perf_event_init(event);
if (unlikely(err)) {
if (event->destroy)
event->destroy(event);
return ERR_PTR(err);
}
return &pmu;
}
static void sh_pmu_setup(int cpu)
{
struct cpu_hw_events *cpuhw = &per_cpu(cpu_hw_events, cpu);
memset(cpuhw, 0, sizeof(struct cpu_hw_events));
@@ -325,6 +337,7 @@ int __cpuinit register_sh_pmu(struct sh_pmu *pmu)
WARN_ON(pmu->num_events > MAX_HWEVENTS);
perf_pmu_register(&pmu);
perf_cpu_notifier(sh_pmu_notifier);
return 0;
}