Commit-ID: 2cc9e588b0ff80c209c59a3e369c73e591535ba8
Gitweb: http://git.kernel.org/tip/2cc9e588b0ff80c209c59a3e369c73e591535ba8
Author: Vince Weaver <vincent.weaver@xxxxxxxxx>
AuthorDate: Sun, 15 Jun 2014 02:00:18 -0400
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Wed, 18 Jun 2014 18:43:44 +0200
arc, perf: Use common PMU interrupt disabled code
Transition to using the new generic PERF_PMU_CAP_NO_INTERRUPT method for
failing a sampling event when no PMU interrupt is available.
Signed-off-by: Vince Weaver <vincent.weaver@xxxxxxxxx>
Acked-by: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Grant Likely <grant.likely@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1406150159280.16738@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
arch/arc/kernel/perf_event.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c
index 63177e4..b9a5685 100644
--- a/arch/arc/kernel/perf_event.c
+++ b/arch/arc/kernel/perf_event.c
@@ -99,10 +99,6 @@ static int arc_pmu_event_init(struct perf_event *event)
struct hw_perf_event *hwc = &event->hw;
int ret;
- /* ARC 700 PMU does not support sampling events */
- if (is_sampling_event(event))
- return -ENOENT;
-
switch (event->attr.type) {
case PERF_TYPE_HARDWARE:
if (event->attr.config >= PERF_COUNT_HW_MAX)
@@ -298,6 +294,9 @@ static int arc_pmu_device_probe(struct platform_device *pdev)
.read = arc_pmu_read,
};
+ /* ARC 700 PMU does not support sampling events */
+ arc_pmu->pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT;
+
ret = perf_pmu_register(&arc_pmu->pmu, pdev->name, PERF_TYPE_RAW);
return ret;
--
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