perf_counter: revamp syscall input ABI
Impact: modify ABI
The hardware/software classification in hw_event->type became a little
strained due to the addition of tracepoint tracing.
Instead split up the field and provide a type field to explicitly specify
the counter type, while using the event_id field to specify which event to
use.
Raw counters still work as before, only the raw config now goes into
raw_event.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Orig-LKML-Reference: <20090319194233.836807573@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/powerpc/kernel/perf_counter.c b/arch/powerpc/kernel/perf_counter.c
index 5008762..26f69dc 100644
--- a/arch/powerpc/kernel/perf_counter.c
+++ b/arch/powerpc/kernel/perf_counter.c
@@ -602,7 +602,7 @@
return NULL;
if ((s64)counter->hw_event.irq_period < 0)
return NULL;
- ev = counter->hw_event.type;
+ ev = counter->hw_event.event_id;
if (!counter->hw_event.raw) {
if (ev >= ppmu->n_generic ||
ppmu->generic_events[ev] == 0)
@@ -692,7 +692,7 @@
list_for_each_entry(sub, &leader->sibling_list, list_entry) {
if (sub != counter)
sub->hw_ops->read(sub);
- perf_store_irq_data(counter, sub->hw_event.type);
+ perf_store_irq_data(counter, sub->hw_event.event_config);
perf_store_irq_data(counter, atomic64_read(&sub->count));
}
}