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| author | Ingo Molnar <mingo@elte.hu> | 2012-03-12 19:46:35 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2012-03-12 19:47:05 (GMT) |
| commit | bea95c152dee1791dd02cbc708afbb115bb00f9a (patch) | |
| tree | af9994c42c5fdd81ba3dadd7b812e2fa85273353 /arch/sparc | |
| parent | f9b4eeb809c6d031cc9561cc34dd691701cb2c2a (diff) | |
| parent | 24bff2dc0f77b1f186b7bdf30060caf3df191a68 (diff) | |
| download | linux-bea95c152dee1791dd02cbc708afbb115bb00f9a.tar.xz | |
Merge branch 'perf/hw-branch-sampling' into perf/core
Merge reason: The 'perf record -b' hardware branch sampling feature is ready for upstream.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/kernel/perf_event.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c index 614da62..8e16a4a 100644 --- a/arch/sparc/kernel/perf_event.c +++ b/arch/sparc/kernel/perf_event.c @@ -1105,6 +1105,10 @@ static int sparc_pmu_event_init(struct perf_event *event) if (atomic_read(&nmi_active) < 0) return -ENODEV; + /* does not support taken branch sampling */ + if (has_branch_stack(event)) + return -EOPNOTSUPP; + switch (attr->type) { case PERF_TYPE_HARDWARE: if (attr->config >= sparc_pmu->max_events) |